diff options
Diffstat (limited to 'contrib')
97 files changed, 0 insertions, 54701 deletions
diff --git a/contrib/libpcap/.cvsignore b/contrib/libpcap/.cvsignore deleted file mode 100644 index 138c288..0000000 --- a/contrib/libpcap/.cvsignore +++ /dev/null @@ -1,13 +0,0 @@ -config.log -config.cache -config.status -config.h -.devel -stamp-h -stamp-h.in -Makefile -scanner.c -grammar.c -tokdefs.h -version.c -version.h diff --git a/contrib/libpcap/CHANGES b/contrib/libpcap/CHANGES deleted file mode 100644 index 536e1a2..0000000 --- a/contrib/libpcap/CHANGES +++ /dev/null @@ -1,490 +0,0 @@ -@(#) $Header: /tcpdump/master/libpcap/CHANGES,v 1.59.2.13 2007/09/12 22:40:04 ken Exp $ (LBL) - -Mon. September 10, 2007. ken@xelerance.com. Summary for 0.9.8 libpcap release - Change build process to put public libpcap headers into pcap subir - DLT: Add value for IPMI IPMB packets - DLT: Add value for u10 Networks boards - Require <net/pfvar.h> for pf definitions - allows reading of pflog formatted - libpcap files on an OS other than where the file was generated - -Wed. July 23, 2007. mcr@xelerance.com. Summary for 0.9.7 libpcap release - - FIXED version file to be 0.9.7 instead of 0.9.5. - added flags/configuration for cloning bpf device. - added DLT_MTP2_WITH_PHDR support (PPI) - "fix" the "memory leak" in icode_to_fcode() -- documentation bug - Various link-layer types, with a pseudo-header, for SITA http://www.sita.aero/ - introduces support for the DAG ERF type TYPE_COLOR_MC_HDLC_POS. - Basic BPF filtering support for DLT_MTP2_WITH_PHDR is also added. - check for IPv4 and IPv6, even for DLT_RAW - add support for DLT_JUNIPER_ISM - Pick up changes from NetBSD: many from tron, christos, drochner - Allocate DLT_ for 802.15.4 without any header munging, for Mikko Saarnivala. - Header for 802.16 MAC Common Part Sublayer plus a radiotap radio header - -Wed. April 25, 2007. ken@xelerance.com. Summary for 0.9.6 libpcap release - - Put the public libpcap headers into a pcap subdirectory in both the - source directory and the target include directory, and have include - files at the top-level directory to include those headers, for - backwards compatibility. - Add Bluetooth support - Add USB capturing support on Linux - Add support for the binary USB sniffing interface in Linux - Add support for new FreeBSD BIOCSDIRECTION ioctl - Add additional filter operations for 802.11 frame types - Add support for filtering on MTP2 frame types - Propagate some changes from the main branch, so the x.9 branch has - all the DLT_ and LINKTYPE_ values that the main branch does - Reserved a DLT_ and SAVEFILE_ value for PPI (Per Packet Info) - encapsulated packets - Add LINKTYPE_ for IEEE 802.15.4, with address fields padded as done - by Linux drivers - Add LINKTYPE_ value corresponding to DLT_IEEE802_16_MAC_CPS. - Add DLT for IEEE 802.16 (WiMAX) MAC Common Part Sublayer - Add DLT for Bluetooth HCI UART transport layer - When building a shared library, build with "-fPIC" on Linux to support x86_64 - Link with "$(CC) -shared" rather than "ld -shared" when building a - ".so" shared library - Add support for autoconf 2.60 - Fixes to discard unread packets when changing filters - Changes to handle name changes in the DAG library resulting from - switching to libtool. - Add support for new DAG ERF types. - Add an explicit "-ldag" when building the shared library, so the DAG - library dependency is explicit. - Mac OSX fixes for dealing with "wlt" devices - Fixes in add_or_find_if() & pcap_findalldevs() to optimize generating - device lists - Fixed a bug in pcap_open_live(). The return value of PacketSetHwFilter - was not checked. - -Tue. September 19, 2006. ken@xelerance.com. Summary for 0.9.5 libpcap release - - Support for LAPD frames with vISDN - Support for ERF on channelized T1/E1 cards via DAG API - Fix capitalization that caused issues crossc compiling on Linux - Better failure detection on PacketGetAdapterNames() - Fixes for MPLS packet generation (link layer) - OP_PACKET now matches the beginning of the packet, instead of - beginning+link-layer - Add DLT/LINKTYPE for carrying FRF.16 Multi-link Frame Relay - Fix allocation of buffer for list of link-layer types - Added a new DLT and LINKTYPE value for ARINC 653 Interpartition Communcation Messages - Fixed a typo in a DLT value: it should start with DLT_ and not LINKTYPE_ - Redefined DLT_CAN20B and LINKTYPE_CAN20B as #190 (as this is the right value for CAN). - Added definition for DLT_A429 and LINKTYPE_A429 as #184. - Added a new DLT and LINKTYPE value for CAN v2.0B frames. - Add support for DLT_JUNIPER_VP. - Don't double-count received packets on Linux systems that - support the PACKET_STATISTICS getsockopt() argument on - PF_PACKET sockets. - Add support for DLT_IEEE802_11 and DLT_IEEE802_11_RADIO link - layers in Windows - Add support to build libpcap.lib and wpcap.dll under Cygnus and - MingW32. - -Mon. September 5, 2005. ken@xelerance.com. Summary for 0.9.4 libpcap release - - Support for radiotap on Linux (Mike Kershaw) - Fixes for HP-UX - Support for additional Juniper link-layer types - Fixes for filters on MPLS-encapsulated packets - "vlan" filter fixed - "pppoed" and "pppoes" filters added; the latter modifies later - parts of the filter expression to look at the PPP headers and - headers in the PPP payload - -Tue. July 5, 2005. ken@xelerance.com. Summary for 0.9.3 libpcap release - - Fixes for compiling on nearly every platform, - including improved 64bit support - MSDOS Support - Add support for sending packets - OpenBSD pf format support - IrDA capture (Linux only) - -Tue. March 30, 2004. mcr@sandelman.ottawa.on.ca. Summary for 3.8.3 release - - Fixed minor problem in gencode.c that would appear on 64-bit - platforms. - Version number is now sane. - -Mon. March 29, 2004. mcr@sandelman.ottawa.on.ca. Summary for 3.8.2 release - - updates for autoconf 2.5 - fixes for ppp interfaces for freebsd 4.1 - pcap gencode can generate code for 802.11, IEEE1394, and pflog. - -Wed. November 12, 2003. mcr@sandelman.ottawa.on.ca. Summary for 0.8 release - - added pcap_findalldevs() - Win32 patches from NetGroup, Politecnico di Torino (Italy) - OpenBSD pf, DLT_PFLOG added - Many changes to ATM support. - lookup pcap_lookupnet() - Added DLT_ARCNET_LINUX, DLT_ENC, DLT_IEEE802_11_RADIO, DLT_SUNATM, - DLT_IP_OVER_FC, DLT_FRELAY, others. - Sigh. More AIX wonderfulness. - Document updates. - Changes to API: pcap_next_ex(), pcap_breakloop(), pcap_dump_flush(), - pcap_list_datalinks(), pcap_set_datalink(), - pcap_lib_version(), pcap_datalink_val_to_name(), - pcap_datalink_name_to_val(), new error returns. - -Tuesday, February 25, 2003. fenner@research.att.com. 0.7.2 release - - Support link types that use 802.2 always, never, and sometimes. - Don't decrease the size of the BPF buffer from the default. - Support frame relay. - Handle 32-bit timestamps in DLPI, and pass the right buffer size. - Handle Linux systems with modern kernel but without - SOL_PACKET in the userland headers. - Linux support for ARPHRD_RAWHDLC. - Handle 32-bit timestamps in snoop. - Support eg (Octane/O2xxx/O3xxx Gigabit) devices. - Add new reserved DLT types. - -Monday October 23, 2001. mcr@sandelman.ottawa.on.ca. Summary for 0.7 release - - Added pcap_findalldevs() call to get list of interfaces in a MI way. - - pcap_stats() has been documented as to what its counters mean on - each platform. - -Tuesday January 9, 2001. guy@alum.mit.edu. Summary for 0.6 release - - New Linux libpcap implementation, which, in 2.2 and later - kernels, uses PF_PACKET sockets and supports kernel packet - filtering (if compiled into the kernel), and supports the "any" - device for capturing on all interfaces. Cleans up promiscuous - mode better on pre-2.2 kernels, and has various other fixes - (handles 2.4 ARPHRD_IEEE802_TR, handles ISDN devices better, - doesn't show duplicate packets on loopback interface, etc.). - - Fixed HP-UX libpcap implementation to correctly get the PPA for - an interface, to allow interfaces to be opened by interface name. - - libpcap savefiles have system-independent link-layer type values - in the header, rather than sometimes platform-dependent DLT_ - values, to make it easier to exchange capture files between - different OSes. - - Non-standard capture files produced by some Linux tcpdumps, e.g. - the one from Red Hat Linux 6.2 and later, can now be read. - - Updated autoconf stock files. - - Filter expressions can filter on VLAN IDs and various OSI - protocols, and work on Token Ring (with non-source-routed - packets). - - "pcap_open_dead()" added to allow compiling filter expressions - to pcap code without opening a capture device or capture file. - - Header files fixed to allow use in C++ programs. - - Removed dependancy on native headers for packet layout. - Removed Linux specific headers that were shipped. - - Security fixes: Strcpy replaced with strlcpy, sprintf replaced - with snprintf. - - Fixed bug that could cause subsequent "pcap_compile()"s to fail - erroneously after one compile failed. - - Assorted other bug fixes. - - README.aix and README.linux files added to describe - platform-specific issues. - - "getifaddrs()" rather than SIOCGIFCONF used, if available. - -v0.5 Sat Jun 10 11:09:15 PDT 2000 - -itojun@iijlab.net -- Brought in KAME IPv6/IPsec bpf compiler. -- Fixes for NetBSD. -- Support added for OpenBSD DLT_LOOP and BSD/OS DLT_C_HDLC (Cisco HDLC), - and changes to work around different BSDs having different DLT_ types - with the same numeric value. - -Assar Westerlund <assar@sics.se> -- Building outside the source code tree fixed. -- Changed to write out time stamps with 32-bit seconds and microseconds - fields, regardless of whether those fields are 32 bits or 64 bits in - the OS's native "struct timeval". -- Changed "pcap_lookupdev()" to dynamically grow the buffer into which - the list of interfaces is read as necessary in order to hold the - entire list. - -Greg Troxel <gdt@ir.bbn.com> -- Added a new "pcap_compile_nopcap()", which lets you compile a filter - expression into a BPF program without having an open live capture or - capture file. - -v0.4 Sat Jul 25 12:40:09 PDT 1998 - -- Fix endian problem with DLT_NULL devices. From FreeBSD via Bill - Fenner (fenner@parc.xerox.com) - -- Fix alignment problem with FDDI under DLPI. This was causing core - dumps under Solaris. - -- Added configure options to disable flex and bison. Resulted from a - bug report by barnett@grymoire.crd.ge.com (Bruce Barnett). Also added - options to disable gcc and to force a particular packet capture type. - -- Added support for Fore ATM interfaces (qaa and fa) under IRIX. Thanks - to John Hawkinson (jhawk@mit.edu) - -- Change Linux PPP and SLIP to use DLT_RAW since the kernel does not - supply any "link layer" data. - -- Change Linux to use SIOCGIFHWADDR ioctl to determine link layer type. - Thanks to Thomas Sailer (sailer@ife.ee.ethz.ch) - -- Change IRIX PPP to use DLT_RAW since the kernel does not supply any - "link layer" data. - -- Modified to support the new BSD/OS 2.1 PPP and SLIP link layer header - formats. - -- Added some new SGI snoop interface types. Thanks to Steve Alexander - (sca@refugee.engr.sgi.com) - -- Fixes for HP-UX 10.20 (which is similar to HP-UX 9). Thanks to - Richard Allen (ra@hp.is) and Steinar Haug (sthaug@nethelp.no) - -- Fddi supports broadcast as reported by Jeff Macdonald - (jeff@iacnet.com). Also correct ieee802 and arcnet. - -- Determine Linux pcap buffer size at run time or else it might not be - big enough for some interface types (e.g. FDDI). Thanks to Jes - Sorensen (Jes.Sorensen@cern.ch) - -- Fix some linux alignment problems. - -- Document promisc argument to pcap_open_live(). Reported by Ian Marsh - (ianm@sics.se) - -- Support Metricom radio packets under Linux. Thanks to Kevin Lai - (laik@gunpowder.stanford.edu) - -- Bind to interface name under Linux to avoid packets from multiple - interfaces on multi-homed hosts. Thanks to Kevin Lai - (laik@gunpowder.stanford.edu) - -- Change L_SET to SEEK_SET for HP-UX. Thanks to Roland Roberts - (rroberts@muller.com) - -- Fixed an uninitialized memory reference found by Kent Vander Velden - (graphix@iastate.edu) - -- Fixed lex pattern for IDs to allow leading digits. As reported by - Theo de Raadt (deraadt@cvs.openbsd.org) - -- Fixed Linux include file problems when using GNU libc. - -- Ifdef ARPHRD_FDDI since not all versions of the Linux kernel have it. - Reported reported by Eric Jacksch (jacksch@tenebris.ca) - -- Fixed bug in pcap_dispatch() that kept it from returning on packet - timeouts. - -- Changed ISLOOPBACK() macro when IFF_LOOPBACK isn't available to check - for "lo" followed by an eos or digit (newer versions of Linux - apparently call the loopback "lo" instead of "lo0"). - -- Fixed Linux networking include files to use ints instead of longs to - avoid problems with 64 bit longs on the alpha. Thanks to Cristian - Gafton (gafton@redhat.com) - -v0.3 Sat Nov 30 20:56:27 PST 1996 - -- Added Linux support. - -- Fixed savefile bugs. - -- Solaris x86 fix from Tim Rylance (t.rylance@elsevier.nl) - -- Add support for bpf kernel port filters. - -- Remove duplicate atalk protocol table entry. Thanks to Christian - Hopps (chopps@water.emich.edu) - -- Fixed pcap_lookupdev() to ignore nonexistent devices. This was - reported to happen under BSD/OS by David Vincenzetti - (vince@cryptonet.it) - -- Avoid solaris compiler warnings. Thanks to Bruce Barnett - (barnett@grymoire.crd.ge.com) - -v0.2.1 Sun Jul 14 03:02:26 PDT 1996 - -- Fixes for HP-UX 10. Thanks in part to to Thomas Wolfram - (wolf@prz.tu-berlin.de) and Rick Jones (raj@hpisrdq.cup.hp.com) - -- Added support for SINIX. Thanks to Andrej Borsenkow - (borsenkow.msk@sni.de) - -- Fixes for AIX (although this system is not yet supported). Thanks to - John Hawkinson (jhawk@mit.edu) - -- Use autoconf's idea of the top level directory in install targets. - Thanks to John Hawkinson. - -- Add missing autoconf packet capture result message. Thanks to Bill - Fenner (fenner@parc.xerox.com) - -- Fixed padding problems in the pf module. - -- Fixed some more alignment problems on the alpha. - -- Added explicit netmask support. Thanks to Steve Nuchia - (steve@research.oknet.com) - -- Fixed to handle raw ip addresses such as 0.0.0.1 without "left - justifing" - -- Add "sca" keyword (for DEC cluster services) as suggested by Terry - Kennedy (terry@spcvxa.spc.edu) - -- Add "atalk" keyword as suggested by John Hawkinson. - -- Add "igrp" keyword. - -- Fixed HID definition in grammar.y to be a string, not a value. - -- Use $CC when checking gcc version. Thanks to Carl Lindberg - (carl_lindberg@blacksmith.com) - -- Removed obsolete reference to pcap_immediate() from the man page. - Michael Stolarchuk (mts@terminator.rs.itd.umich.edu) - -- DLT_NULL has a 4 byte family header. Thanks to Jeffrey Honig - (jch@bsdi.com) - -v0.2 Sun Jun 23 02:28:42 PDT 1996 - -- Add support for HP-UX. Resulted from code contributed by Tom Murray - (tmurray@hpindck.cup.hp.com) and Philippe-Andri Prindeville - (philipp@res.enst.fr) - -- Update INSTALL with a reminder to install include files. Thanks to - Mark Andrews (mandrews@aw.sgi.com) - -- Fix bpf compiler alignment bug on the alpha. - -- Use autoconf to detect architectures that can't handle misaligned - accesses. - -- Added loopback support for snoop. Resulted from report Steve - Alexander (sca@engr.sgi.com) - -v0.1 Fri Apr 28 18:11:03 PDT 1995 - -- Fixed compiler and optimizer bugs. The BPF filter engine uses unsigned - comparison operators, while the code generator and optimizer assumed - signed semantics in several places. Thanks to Charlie Slater - (cslater@imatek.com) for pointing this out. - -- Removed FDDI ifdef's, they aren't really needed. Resulted from report - by Gary Veum (veum@boa.gsfc.nasa.gov). - -- Add pcap-null.c which allows offline use of libpcap on systems that - don't support live package capture. This feature resulting from a - request from Jan van Oorschot (j.p.m.voorschot@et.tudelft.nl). - -- Make bpf_compile() reentrant. Fix thanks to Pascal Hennequin - (Pascal.Hennequin@hugo.int-evry.fr). - -- Port to GNU autoconf. - -- Fix pcap-dlpi.c to work with isdn. Resulted from report by Flemming - Johansen (fsj@csd.cri.dk). - -- Handle multi-digit interface unit numbers (aka ppa's) under dlpi. - Resulted from report by Daniel Ehrlich (ehrlich@cse.psu.edu). - -- Fix pcap-dlpi.c to work in non-promiscuous mode. Resulted from report - by Jeff Murphy (jcmurphy@acsu.buffalo.edu). - -- Add support for "long jumps". Thanks to Jeffrey Mogul - (mogul@pa.dec.com). - -- Fix minor problems when compiling with BDEBUG as noticed by Scott - Bertilson (scott@unet.umn.edu). - -- Declare sys_errlist "const char *const" to avoid problems under - FreeBSD. Resulted from report by jher@eden.com. - -v0.0.6 Fri Apr 28 04:07:13 PDT 1995 - -- Add missing variable declaration missing from 0.0.6 - -v0.0.5 Fri Apr 28 00:22:21 PDT 1995 - -- Workaround for problems when pcap_read() returns 0 due to the timeout - expiring. - -v0.0.4 Thu Apr 20 20:41:48 PDT 1995 - -- Change configuration to not use gcc v2 flags with gcc v1. - -- Fixed a bug in pcap_next(); if pcap_dispatch() returns 0, pcap_next() - should also return 0. Thanks to Richard Stevens (rstevens@noao.edu). - -- Fixed configure to test for snoop before dlpi to avoid problems under - IRIX 5. Thanks to J. Eric Townsend (jet@abulafia.genmagic.com). - -- Hack around deficiency in Ultrix's make. - -- Fix two bugs related to the Solaris pre-5.3.2 bufmod bug; handle - savefiles that have more than snapshot bytes of data in them (so we - can read old savefiles) and avoid writing such files. - -- Added checkioctl which is used with gcc to check that the - "fixincludes" script has been run. - -v0.0.3 Tue Oct 18 18:13:46 PDT 1994 - -- Fixed configure to test for snoop before dlpi to avoid problems under - IRIX 5. Thanks to J. Eric Townsend (jet@abulafia.genmagic.com). - -v0.0.2 Wed Oct 12 20:56:37 PDT 1994 - -- Implement timeout in the dlpi pcap_open_live(). Thanks to Richard - Stevens. - -- Determine pcap link type from dlpi media type. Resulted from report - by Mahesh Jethanandani (mahesh@npix.com). - -v0.0.1 Fri Jun 24 14:50:57 PDT 1994 - -- Fixed bug in nit_setflags() in pcap-snit.c. The streams ioctl timeout - wasn't being initialized sometimes resulting in an "NIOCSFLAGS: - Invalid argument" error under OSF/1. Reported by Matt Day - (mday@artisoft.com) and Danny Mitzel (dmitzel@whitney.hitc.com). - -- Turn on FDDI support by default. - -v0.0 Mon Jun 20 19:20:16 PDT 1994 - -- Initial release. - -- Fixed bug with greater/less keywords, reported by Mark Andrews - (mandrews@alias.com). - -- Fix bug where '|' was defined as BPF_AND instead of BPF_OR, reported - by Elan Amir (elan@leeb.cs.berkeley.edu). - -- Machines with little-endian byte ordering are supported thanks to - Jeff Mogul. - -- Add hack for version 2.3 savefiles which don't have caplen and len - swapped thanks to Vern Paxson. - -- Added "&&" and "||" aliases for "and" and "or" thanks to Vern Paxson. - -- Added length, inbound and outbound keywords. diff --git a/contrib/libpcap/CREDITS b/contrib/libpcap/CREDITS deleted file mode 100644 index 2e54aab..0000000 --- a/contrib/libpcap/CREDITS +++ /dev/null @@ -1,108 +0,0 @@ -This file lists people who have contributed to libpcap: - -The current maintainers: - Bill Fenner <fenner@research.att.com> - Fulvio Risso <risso@polito.it> - Guy Harris <guy@alum.mit.edu> - Hannes Gredler <hannes@juniper.net> - Jun-ichiro itojun Hagino <itojun@iijlab.net> - Michael Richardson <mcr@sandelman.ottawa.on.ca> - -Additional people who have contributed patches: - - Alan Bawden <Alan@LCS.MIT.EDU> - Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> - Albert Chin <china@thewrittenword.com> - Andrew Brown <atatat@atatdot.net> - Antti Kantee <pooka@netbsd.org> - Arkadiusz Miskiewicz <misiek@pld.org.pl> - Armando L. Caro Jr. <acaro@mail.eecis.udel.edu> - Assar Westerlund <assar@sics.se> - Brian Ginsbach <ginsbach@cray.com> - Charles M. Hannum <mycroft@netbsd.org> - Chris G. Demetriou <cgd@netbsd.org> - Chris Lightfoot <cwrl@users.sourceforge.net> - Chris Pepper <pepper@mail.reppep.com> - Daniele Orlandi <daniele@orlandi.com> - Darren Reed <darrenr@reed.wattle.id.au> - David Kaelbling <drk@sgi.com> - David Young <dyoung@ojctech.com> - Dean Gaudet <dean@arctic.org> - Don Ebright <Don.Ebright@compuware.com> - Dug Song <dugsong@monkey.org> - Eric Anderson <anderse@hpl.hp.com> - Erik de Castro Lopo <erik.de.castro.lopo@sensorynetworks.com> - Florent Drouin <Florent.Drouin@alcatel-lucent.fr> - Franz Schaefer <schaefer@mond.at> - Gianluca Varenni <varenni@netgroup-serv.polito.it> - Gilbert Hoyek <gil_hoyek@hotmail.com> - Gisle Vanem <giva@bgnett.no> - Graeme Hewson <ghewson@cix.compulink.co.uk> - Greg Stark <gsstark@mit.edu> - Greg Troxel <gdt@ir.bbn.com> - Guillaume Pelat <endymion_@users.sourceforge.net> - Hyung Sik Yoon <hsyn@kr.ibm.com> - Igor Khristophorov <igor@atdot.org> - Jan-Philip Velders <jpv@veldersjes.net> - Jason R. Thorpe <thorpej@netbsd.org> - Javier Achirica <achirica@ttd.net> - Jean Tourrilhes <jt@hpl.hp.com> - Jefferson Ogata <jogata@nodc.noaa.gov> - Jesper Peterson <jesper@endace.com> - John Bankier <jbankier@rainfinity.com> - Jon Lindgren <jonl@yubyub.net> - Juergen Schoenwaelder <schoenw@ibr.cs.tu-bs.de> - Jung-uk Kim <jkim@FreeBSD.org> - Kazushi Sugyo <sugyo@pb.jp.nec.com> - Klaus Klein <kleink@netbsd.org> - Koryn Grant <koryn@endace.com> - Krzysztof Halasa <khc@pm.waw.pl> - Lorenzo Cavallaro <sullivan@sikurezza.org> - Loris Degioanni <loris@netgroup-serv.polito.it> - Love Hörnquist-Åstrand <lha@stacken.kth.se> - Maciej W. Rozycki <macro@ds2.pg.gda.pl> - Marcus Felipe Pereira <marcus@task.com.br> - Mark C. Brown <mbrown@hp.com> - Mark Pizzolato <List-tcpdump-workers@subscriptions.pizzolato.net> - Martin Husemann <martin@netbsd.org> - Matthew Luckie <mjl@luckie.org.nz> - Max Laier <max@love2party.net> - Mike Kershaw <dragorn@kismetwireless.net> - Mike Wiacek <mike@iroot.net> - Monroe Williams <monroe@pobox.com> - Nicolas Dade <ndade@nsd.dyndns.org> - Octavian Cerna <tavy@ylabs.com> - Olaf Kirch <okir@caldera.de> - Ollie Wild <aaw@users.sourceforge.net> - Onno van der Linden <onno@simplex.nl> - Patrick Marie <mycroft@virgaria.org> - Paul Mundt <lethal@linux-sh.org> - Pavel Kankovsky <kan@dcit.cz> - Pawel Pokrywka <publicpp@gmail.com> - Peter Fales <peter@fales-lorenz.net> - Peter Jeremy <peter.jeremy@alcatel.com.au> - Phil Wood <cpw@lanl.gov> - Rafal Maszkowski <rzm@icm.edu.pl> - <rcb-isis@users.sourceforge.net> - Rick Jones <raj@cup.hp.com> - Scott Barron <sb125499@ohiou.edu> - Scott Gifford <sgifford@tir.com> - Sebastian Krahmer <krahmer@cs.uni-potsdam.de> - Shaun Clowes <delius@progsoc.uts.edu.au> - Solomon Peachy <pizza@shaftnet.org> - Stefan Hudson <hudson@mbay.net> - Stephen Donnelly <stephen@endace.com> - Takashi Yamamoto <yamt@mwd.biglobe.ne.jp> - Tanaka Shin-ya <zstanaka@archer.livedoor.com> - Tony Li <tli@procket.com> - Torsten Landschoff <torsten@debian.org> - Uns Lider <unslider@miranda.org> - Uwe Girlich <Uwe.Girlich@philosys.de> - Xianjie Zhang <xzhang@cup.hp.com> - Yen Yen Lim - Yoann Vandoorselaere <yoann@prelude-ids.org> - -The original LBL crew: - Steve McCanne - Craig Leres - Van Jacobson diff --git a/contrib/libpcap/FILES b/contrib/libpcap/FILES deleted file mode 100644 index 68c204a..0000000 --- a/contrib/libpcap/FILES +++ /dev/null @@ -1,124 +0,0 @@ -CHANGES -ChmodBPF/ChmodBPF -ChmodBPF/StartupParameters.plist -CREDITS -FILES -INSTALL.txt -LICENSE -Makefile.in -README -README.aix -README.dag -README.hpux -README.linux -README.macosx -README.septel -README.tru64 -README.Win32 -SUNOS4/nit_if.o.sparc -SUNOS4/nit_if.o.sun3 -SUNOS4/nit_if.o.sun4c.4.0.3c -TODO -VERSION -acconfig.h -aclocal.m4 -arcnet.h -atmuni31.h -bpf/net/bpf_filter.c -bpf_dump.c -bpf_image.c -config.guess -config.h.in -config.sub -configure -configure.in -etherent.c -ethertype.h -fad-getad.c -fad-gifc.c -fad-glifc.c -fad-null.c -fad-win32.c -gencode.c -gencode.h -grammar.y -inet.c -install-sh -lbl/os-aix4.h -lbl/os-hpux11.h -lbl/os-osf4.h -lbl/os-osf5.h -lbl/os-solaris2.h -lbl/os-sunos4.h -lbl/os-ultrix4.h -llc.h -missing/snprintf.c -mkdep -msdos/bin2c.c -msdos/common.dj -msdos/makefile -msdos/makefile.dj -msdos/makefile.wc -msdos/ndis2.c -msdos/ndis2.h -msdos/ndis_0.asm -msdos/pkt_rx0.asm -msdos/pkt_rx1.s -msdos/pktdrvr.c -msdos/pktdrvr.h -msdos/readme.dos -nametoaddr.c -nlpid.h -optimize.c -packaging/pcap.spec -packaging/pcap.spec.in -pcap-bpf.c -pcap-bpf.h -pcap-dag.c -pcap-dag.h -pcap-dlpi.c -pcap-dos.c -pcap-dos.h -pcap-enet.c -pcap-int.h -pcap-linux.c -pcap-namedb.h -pcap-nit.c -pcap-nit.h -pcap-null.c -pcap-pf.c -pcap-pf.h -pcap-septel.c -pcap-septel.h -pcap-stdinc.h -pcap-snit.c -pcap-snoop.c -pcap-win32.c -pcap.3 -pcap.c -pcap.h -ppp.h -savefile.c -scanner.l -sll.h -sunatmpos.h -Win32/Include/Gnuc.h -Win32/Include/addrinfo.h -Win32/Include/bittypes.h -Win32/Include/cdecl_ext.h -Win32/Include/inetprivate.h -Win32/Include/ip6_misc.h -Win32/Include/sockstorage.h -Win32/Include/arpa/nameser.h -Win32/Include/net/if.h -Win32/Include/net/netdb.h -Win32/Include/net/paths.h -Win32/Src/ffs.c -Win32/Src/getaddrinfo.c -Win32/Src/getnetbynm.c -Win32/Src/getnetent.c -Win32/Src/getopt.c -Win32/Src/getservent.c -Win32/Src/inet_aton.c -Win32/Src/inet_net.c -Win32/Src/inet_pton.c diff --git a/contrib/libpcap/INSTALL b/contrib/libpcap/INSTALL deleted file mode 100644 index e8d8d96..0000000 --- a/contrib/libpcap/INSTALL +++ /dev/null @@ -1,342 +0,0 @@ -@(#) $Header: /tcpdump/master/libpcap/INSTALL,v 1.46 2000/12/16 09:05:11 guy Exp $ (LBL) - -To build libpcap, run "./configure" (a shell script). The configure -script will determine your system attributes and generate an -appropriate Makefile from Makefile.in. Next run "make". If everything -goes well you can su to root and run "make install". However, you need -not install libpcap if you just want to build tcpdump; just make sure -the tcpdump and libpcap directory trees have the same parent -directory. - -If configure says: - - configure: warning: cannot determine packet capture interface - configure: warning: (see INSTALL for more info) - -then your system either does not support packet capture or your system -does support packet capture but libpcap does not support that -particular type. (If you have HP-UX, see below.) If your system uses a -packet capture not supported by libpcap, please send us patches; don't -forget to include an autoconf fragment suitable for use in -configure.in. - -It is possible to override the default packet capture type, although -the circumstance where this works are limited. For example if you have -installed bpf under SunOS 4 and wish to build a snit libpcap: - - ./configure --with-pcap=snit - -Another example is to force a supported packet capture type in the case -where the configure scripts fails to detect it. - -You will need an ANSI C compiler to build libpcap. The configure script -will abort if your compiler is not ANSI compliant. If this happens, use -the GNU C compiler, available via anonymous ftp: - - ftp://ftp.gnu.org/pub/gnu/gcc/ - -If you use flex, you must use version 2.4.6 or higher. The configure -script automatically detects the version of flex and will not use it -unless it is new enough. You can use "flex -V" to see what version you -have (unless it's really old). The current version of flex is available -via anonymous ftp: - - ftp://ftp.ee.lbl.gov/flex-*.tar.Z - -As of this writing, the current version is 2.5.4. - -If you use bison, you must use flex (and visa versa). The configure -script automatically falls back to lex and yacc if both flex and bison -are not found. - -Sometimes the stock C compiler does not interact well with flex and -bison. The list of problems includes undefined references for alloca. -You can get around this by installing gcc or manually disabling flex -and bison with: - - ./configure --without-flex --without-bison - -If your system only has AT&T lex, this is okay unless your libpcap -program uses other lex/yacc generated code. (Although it's possible to -map the yy* identifiers with a script, we use flex and bison so we -don't feel this is necessary.) - -Some systems support the Berkeley Packet Filter natively; for example -out of the box OSF and BSD/OS have bpf. If your system does not support -bpf, you will need to pick up: - - ftp://ftp.ee.lbl.gov/bpf-*.tar.Z - -Note well: you MUST have kernel source for your operating system in -order to install bpf. An exception is SunOS 4; the bpf distribution -includes replacement kernel objects for some of the standard SunOS 4 -network device drivers. See the bpf INSTALL document for more -information. - -If you use Solaris, there is a bug with bufmod(7) that is fixed in -Solaris 2.3.2 (aka SunOS 5.3.2). Setting a snapshot length with the -broken bufmod(7) results in data be truncated from the FRONT of the -packet instead of the end. The work around is to not set a snapshot -length but this results in performance problems since the entire packet -is copied to user space. If you must run an older version of Solaris, -there is a patch available from Sun; ask for bugid 1149065. After -installing the patch, use "setenv BUFMOD_FIXED" to enable use of -bufmod(7). However, we recommend you run a more current release of -Solaris. - -If you use the SPARCompiler, you must be careful to not use the -/usr/ucb/cc interface. If you do, you will get bogus warnings and -perhaps errors. Either make sure your path has /opt/SUNWspro/bin -before /usr/ucb or else: - - setenv CC /opt/SUNWspro/bin/cc - -before running configure. (You might have to do a "make distclean" -if you already ran configure once). - -Also note that "make depend" won't work; while all of the known -universe uses -M, the SPARCompiler uses -xM to generate makefile -dependencies. - -If you are trying to do packet capture with a FORE ATM card, you may or -may not be able to. They usually only release their driver in object -code so unless their driver supports packet capture, there's not much -libpcap can do. - -If you get an error like: - - tcpdump: recv_ack: bind error 0x??? - -when using DLPI, look for the DL_ERROR_ACK error return values, usually -in /usr/include/sys/dlpi.h, and find the corresponding value. - -Under {DEC OSF/1, Digital UNIX, Tru64 UNIX}, packet capture must be -enabled before it can be used. For instructions on how to enable packet -filter support, see: - - ftp://ftp.digital.com/pub/Digital/dec-faq/Digital-UNIX - -Look for the "How do I configure the Berkeley Packet Filter and capture -tcpdump traces?" item. - -Once you enable packet filter support, your OSF system will support bpf -natively. - -Under Ultrix, packet capture must be enabled before it can be used. For -instructions on how to enable packet filter support, see: - - ftp://ftp.digital.com/pub/Digital/dec-faq/ultrix - -If you use HP-UX, you must have at least version 9 and either the -version of cc that supports ANSI C (cc -Aa) or else use the GNU C -compiler. You must also buy the optional streams package. If you don't -have: - - /usr/include/sys/dlpi.h - /usr/include/sys/dlpi_ext.h - -then you don't have the streams package. In addition, we believe you -need to install the "9.X LAN and DLPI drivers cumulative" patch -(PHNE_6855) to make the version 9 DLPI work with libpcap. - -The DLPI streams package is standard starting with HP-UX 10. - -The HP implementation of DLPI is a little bit eccentric. Unlike -Solaris, you must attach /dev/dlpi instead of the specific /dev/* -network pseudo device entry in order to capture packets. The PPA is -based on the ifnet "index" number. Under HP-UX 9, it is necessary to -read /dev/kmem and the kernel symbol file (/hp-ux). Under HP-UX 10, -DLPI can provide information for determining the PPA. It does not seem -to be possible to trace the loopback interface. Unlike other DLPI -implementations, PHYS implies MULTI and SAP and you get an error if you -try to enable more than one promiscuous mode at a time. - -It is impossible to capture outbound packets on HP-UX 9. To do so on -HP-UX 10, you will, apparently, need a late "LAN products cumulative -patch" (at one point, it was claimed that this would be PHNE_18173 for -s700/10.20; at another point, it was claimed that the required patches -were PHNE_20892, PHNE_20725 and PHCO_10947, or newer patches), and to do -so on HP-UX 11 you will, apparently, need the latest lancommon/DLPI -patches and the latest driver patch for the interface(s) in use on HP-UX -11 (at one point, it was claimed that patches PHNE_19766, PHNE_19826, -PHNE_20008, and PHNE_20735 did the trick). - -Furthermore, on HP-UX 10, you will need to turn on a kernel switch by -doing - - echo 'lanc_outbound_promisc_flag/W 1' | adb -w /stand/vmunix /dev/mem - -You would have to arrange that this happen on reboots; the right way to -do that would probably be to put it into an executable script file -"/sbin/init.d/outbound_promisc" and making -"/sbin/rc2.d/S350outbound_promisc" a symbolic link to that script. - -Finally, testing shows that there can't be more than one simultaneous -DLPI user per network interface. - -If you use Linux, this version of libpcap is known to compile and run -under Red Hat 4.0 with the 2.0.25 kernel. It may work with earlier 2.X -versions but is guaranteed not to work with 1.X kernels. Running more -than one libpcap program at a time, on a system with a 2.0.X kernel, can -cause problems since promiscuous mode is implemented by twiddling the -interface flags from the libpcap application; the packet capture -mechanism in the 2.2 and later kernels doesn't have this problem. Also, -packet timestamps aren't very good. This appears to be due to haphazard -handling of the timestamp in the kernel. - -Note well: there is rumoured to be a version of tcpdump floating around -called 3.0.3 that includes libpcap and is supposed to support Linux. -You should be advised that neither the Network Research Group at LBNL -nor the Tcpdump Group ever generated a release with this version number. -The LBNL Network Research Group notes with interest that a standard -cracker trick to get people to install trojans is to distribute bogus -packages that have a version number higher than the current release. -They also noted with annoyance that 90% of the Linux related bug reports -they got are due to changes made to unofficial versions of their page. -If you are having trouble but aren't using a version that came from -tcpdump.org, please try that before submitting a bug report! - -On Linux, libpcap will not work if the kernel does not have the packet -socket option enabled; see the README.linux file for information about -this. - -If you use AIX, you may not be able to build libpcap from this release. -libpcap. We do not have an AIX system in house so it's impossible for -us to test AIX patches submitted to us. We are told that you must link -against /lib/pse.exp, that you must use AIX cc or a GNU C compiler -newer than 2.7.2 and that you may need to run strload before running a -libpcap application. - -Read the README.aix file for information on installing libpcap and -configuring your system to be able to support libpcap. - -If you use NeXTSTEP, you will not be able to build libpcap from this -release. We hope to support this operating system in some future -release of libpcap. - -If you use SINIX, you should be able to build libpcap from this -release. It is known to compile and run on SINIX-Y/N 5.42 with the C-DS -V1.0 or V1.1 compiler. But note that in some releases of SINIX, yacc -emits incorrect code; if grammar.y fails to compile, change every -occurence of: - - #ifdef YYDEBUG - -to: - #if YYDEBUG - -Another workaround is to use flex and bison. - -If you use SCO, you might have trouble building libpcap from this -release. We do not have a machine running SCO and have not had reports -of anyone successfully building on it. Since SCO apparently supports -DLPI, it's possible the current version works. Meanwhile, SCO provides -a tcpdump binary as part of their "Network/Security Tools" package: - - http://www.sco.com/technology/internet/goodies/#SECURITY - -There is also a README that explains how to enable packet capture. - -If you use UnixWare, you will not be able to build libpcap from this -release. We hope to support this operating system in some future -release of libpcap. Meanwhile, there appears to be an UnixWare port of -libpcap 0.0 (and tcpdump 3.0) in: - - ftp://ftp1.freebird.org/pub/mirror/freebird/internet/systools/ - -UnixWare appears to use a hacked version of DLPI. - -If linking tcpdump fails with "Undefined: _alloca" when using bison on -a Sun4, your version of bison is broken. In any case version 1.16 or -higher is recommended (1.14 is known to cause problems 1.16 is known to -work). Either pick up a current version from: - - ftp://ftp.gnu.org/pub/gnu/bison - -or hack around it by inserting the lines: - - #ifdef __GNUC__ - #define alloca __builtin_alloca - #else - #ifdef sparc - #include <alloca.h> - #else - char *alloca (); - #endif - #endif - -right after the (100 line!) GNU license comment in bison.simple, remove -grammar.[co] and fire up make again. - -If you use SunOS 4, your kernel must support streams NIT. If you run a -libpcap program and it dies with: - - /dev/nit: No such device - -You must add streams NIT support to your kernel configuration, run -config and boot the new kernel. - -If you are running a version of SunOS earlier than 4.1, you will need -to replace the Sun supplied /sys/sun{3,4,4c}/OBJ/nit_if.o with the -appropriate version from this distribution's SUNOS4 subdirectory and -build a new kernel: - - nit_if.o.sun3-sunos4 (any flavor of sun3) - nit_if.o.sun4c-sunos4.0.3c (SS1, SS1+, IPC, SLC, etc.) - nit_if.o.sun4-sunos4 (Sun4's not covered by - nit_if.o.sun4c-sunos4.0.3c) - -These nit replacements fix a bug that makes nit essentially unusable in -pre-SunOS 4.1. In addition, our sun4c-sunos4.0.3c nit gives you -timestamps to the resolution of the SS-1 clock (1 us) rather than the -lousy 20ms timestamps Sun gives you (tcpdump will print out the full -timestamp resolution if it finds it's running on a SS-1). - -FILES ------ -CHANGES - description of differences between releases -FILES - list of files exported as part of the distribution -INSTALL - this file -Makefile.in - compilation rules (input to the configure script) -README - description of distribution -SUNOS4 - pre-SunOS 4.1 replacement kernel nit modules -VERSION - version of this release -aclocal.m4 - autoconf macros -bpf/net - copies of bpf_filter.c and bpf.h -bpf_filter.c - symlink to bpf/net/bpf_filter.c -bpf_image.c - bpf disassembly routine -config.guess - autoconf support -config.sub - autoconf support -configure - configure script (run this first) -configure.in - configure script source -etherent.c - /etc/ethers support routines -ethertype.h - ethernet protocol types and names definitions -gencode.c - bpf code generation routines -gencode.h - bpf code generation definitions -grammar.y - filter string grammar -inet.c - network routines -install-sh - BSD style install script -lbl/gnuc.h - gcc macros and defines -lbl/os-*.h - os dependent defines and prototypes -mkdep - construct Makefile dependency list -nametoaddr.c - hostname to address routines -net - symlink to bpf/net -optimize.c - bpf optimization routines -pcap-bpf.c - BSD Packet Filter support -pcap-dlpi.c - Data Link Provider Interface support -pcap-enet.c - enet support -pcap-int.h - internal libpcap definitions -pcap-namedb.h - public libpcap name database definitions -pcap-nit.c - Network Interface Tap support -pcap-nit.h - Network Interface Tap definitions -pcap-null.c - dummy monitor support (allows offline use of libpcap) -pcap-pf.c - Packet Filter support -pcap-pf.h - Packet Filter definitions -pcap-snit.c - Streams based Network Interface Tap support -pcap-snoop.c - Snoop network monitoring support -pcap.3 - manual entry -pcap.c - pcap utility routines -pcap.h - public libpcap definitions -ppp.h - Point to Point Protocol definitions -savefile.c - offline support -scanner.l - filter string scanner diff --git a/contrib/libpcap/INSTALL.txt b/contrib/libpcap/INSTALL.txt deleted file mode 100644 index 76445a7..0000000 --- a/contrib/libpcap/INSTALL.txt +++ /dev/null @@ -1,382 +0,0 @@ -@(#) $Header: /tcpdump/master/libpcap/INSTALL.txt,v 1.12.2.2 2007/09/12 19:17:24 guy Exp $ (LBL) - -To build libpcap, run "./configure" (a shell script). The configure -script will determine your system attributes and generate an -appropriate Makefile from Makefile.in. Next run "make". If everything -goes well you can su to root and run "make install". However, you need -not install libpcap if you just want to build tcpdump; just make sure -the tcpdump and libpcap directory trees have the same parent -directory. - -If configure says: - - configure: warning: cannot determine packet capture interface - configure: warning: (see INSTALL for more info) - -then your system either does not support packet capture or your system -does support packet capture but libpcap does not support that -particular type. (If you have HP-UX, see below.) If your system uses a -packet capture not supported by libpcap, please send us patches; don't -forget to include an autoconf fragment suitable for use in -configure.in. - -It is possible to override the default packet capture type, although -the circumstance where this works are limited. For example if you have -installed bpf under SunOS 4 and wish to build a snit libpcap: - - ./configure --with-pcap=snit - -Another example is to force a supported packet capture type in the case -where the configure scripts fails to detect it. - -You will need an ANSI C compiler to build libpcap. The configure script -will abort if your compiler is not ANSI compliant. If this happens, use -the GNU C compiler, available via anonymous ftp: - - ftp://ftp.gnu.org/pub/gnu/gcc/ - -If you use flex, you must use version 2.4.6 or higher. The configure -script automatically detects the version of flex and will not use it -unless it is new enough. You can use "flex -V" to see what version you -have (unless it's really old). The current version of flex is available -via anonymous ftp: - - ftp://ftp.ee.lbl.gov/flex-*.tar.Z - -As of this writing, the current version is 2.5.4. - -If you use bison, you must use flex (and visa versa). The configure -script automatically falls back to lex and yacc if both flex and bison -are not found. - -Sometimes the stock C compiler does not interact well with flex and -bison. The list of problems includes undefined references for alloca. -You can get around this by installing gcc or manually disabling flex -and bison with: - - ./configure --without-flex --without-bison - -If your system only has AT&T lex, this is okay unless your libpcap -program uses other lex/yacc generated code. (Although it's possible to -map the yy* identifiers with a script, we use flex and bison so we -don't feel this is necessary.) - -Some systems support the Berkeley Packet Filter natively; for example -out of the box OSF and BSD/OS have bpf. If your system does not support -bpf, you will need to pick up: - - ftp://ftp.ee.lbl.gov/bpf-*.tar.Z - -Note well: you MUST have kernel source for your operating system in -order to install bpf. An exception is SunOS 4; the bpf distribution -includes replacement kernel objects for some of the standard SunOS 4 -network device drivers. See the bpf INSTALL document for more -information. - -If you use Solaris, there is a bug with bufmod(7) that is fixed in -Solaris 2.3.2 (aka SunOS 5.3.2). Setting a snapshot length with the -broken bufmod(7) results in data be truncated from the FRONT of the -packet instead of the end. The work around is to not set a snapshot -length but this results in performance problems since the entire packet -is copied to user space. If you must run an older version of Solaris, -there is a patch available from Sun; ask for bugid 1149065. After -installing the patch, use "setenv BUFMOD_FIXED" to enable use of -bufmod(7). However, we recommend you run a more current release of -Solaris. - -If you use the SPARCompiler, you must be careful to not use the -/usr/ucb/cc interface. If you do, you will get bogus warnings and -perhaps errors. Either make sure your path has /opt/SUNWspro/bin -before /usr/ucb or else: - - setenv CC /opt/SUNWspro/bin/cc - -before running configure. (You might have to do a "make distclean" -if you already ran configure once). - -Also note that "make depend" won't work; while all of the known -universe uses -M, the SPARCompiler uses -xM to generate makefile -dependencies. - -If you are trying to do packet capture with a FORE ATM card, you may or -may not be able to. They usually only release their driver in object -code so unless their driver supports packet capture, there's not much -libpcap can do. - -If you get an error like: - - tcpdump: recv_ack: bind error 0x??? - -when using DLPI, look for the DL_ERROR_ACK error return values, usually -in /usr/include/sys/dlpi.h, and find the corresponding value. - -Under {DEC OSF/1, Digital UNIX, Tru64 UNIX}, packet capture must be -enabled before it can be used. For instructions on how to enable packet -filter support, see: - - ftp://ftp.digital.com/pub/Digital/dec-faq/Digital-UNIX - -Look for the "How do I configure the Berkeley Packet Filter and capture -tcpdump traces?" item. - -Once you enable packet filter support, your OSF system will support bpf -natively. - -Under Ultrix, packet capture must be enabled before it can be used. For -instructions on how to enable packet filter support, see: - - ftp://ftp.digital.com/pub/Digital/dec-faq/ultrix - -If you use HP-UX, you must have at least version 9 and either the -version of cc that supports ANSI C (cc -Aa) or else use the GNU C -compiler. You must also buy the optional streams package. If you don't -have: - - /usr/include/sys/dlpi.h - /usr/include/sys/dlpi_ext.h - -then you don't have the streams package. In addition, we believe you -need to install the "9.X LAN and DLPI drivers cumulative" patch -(PHNE_6855) to make the version 9 DLPI work with libpcap. - -The DLPI streams package is standard starting with HP-UX 10. - -The HP implementation of DLPI is a little bit eccentric. Unlike -Solaris, you must attach /dev/dlpi instead of the specific /dev/* -network pseudo device entry in order to capture packets. The PPA is -based on the ifnet "index" number. Under HP-UX 9, it is necessary to -read /dev/kmem and the kernel symbol file (/hp-ux). Under HP-UX 10, -DLPI can provide information for determining the PPA. It does not seem -to be possible to trace the loopback interface. Unlike other DLPI -implementations, PHYS implies MULTI and SAP and you get an error if you -try to enable more than one promiscuous mode at a time. - -It is impossible to capture outbound packets on HP-UX 9. To do so on -HP-UX 10, you will, apparently, need a late "LAN products cumulative -patch" (at one point, it was claimed that this would be PHNE_18173 for -s700/10.20; at another point, it was claimed that the required patches -were PHNE_20892, PHNE_20725 and PHCO_10947, or newer patches), and to do -so on HP-UX 11 you will, apparently, need the latest lancommon/DLPI -patches and the latest driver patch for the interface(s) in use on HP-UX -11 (at one point, it was claimed that patches PHNE_19766, PHNE_19826, -PHNE_20008, and PHNE_20735 did the trick). - -Furthermore, on HP-UX 10, you will need to turn on a kernel switch by -doing - - echo 'lanc_outbound_promisc_flag/W 1' | adb -w /stand/vmunix /dev/mem - -You would have to arrange that this happen on reboots; the right way to -do that would probably be to put it into an executable script file -"/sbin/init.d/outbound_promisc" and making -"/sbin/rc2.d/S350outbound_promisc" a symbolic link to that script. - -Finally, testing shows that there can't be more than one simultaneous -DLPI user per network interface. - -If you use Linux, this version of libpcap is known to compile and run -under Red Hat 4.0 with the 2.0.25 kernel. It may work with earlier 2.X -versions but is guaranteed not to work with 1.X kernels. Running more -than one libpcap program at a time, on a system with a 2.0.X kernel, can -cause problems since promiscuous mode is implemented by twiddling the -interface flags from the libpcap application; the packet capture -mechanism in the 2.2 and later kernels doesn't have this problem. Also, -packet timestamps aren't very good. This appears to be due to haphazard -handling of the timestamp in the kernel. - -Note well: there is rumoured to be a version of tcpdump floating around -called 3.0.3 that includes libpcap and is supposed to support Linux. -You should be advised that neither the Network Research Group at LBNL -nor the Tcpdump Group ever generated a release with this version number. -The LBNL Network Research Group notes with interest that a standard -cracker trick to get people to install trojans is to distribute bogus -packages that have a version number higher than the current release. -They also noted with annoyance that 90% of the Linux related bug reports -they got are due to changes made to unofficial versions of their page. -If you are having trouble but aren't using a version that came from -tcpdump.org, please try that before submitting a bug report! - -On Linux, libpcap will not work if the kernel does not have the packet -socket option enabled; see the README.linux file for information about -this. - -If you use AIX, you may not be able to build libpcap from this release. -We do not have an AIX system in house so it's impossible for us to test -AIX patches submitted to us. We are told that you must link against -/lib/pse.exp, that you must use AIX cc or a GNU C compiler newer than -2.7.2, and that you may need to run strload before running a libpcap -application. - -Read the README.aix file for information on installing libpcap and -configuring your system to be able to support libpcap. - -If you use NeXTSTEP, you will not be able to build libpcap from this -release. We hope to support this operating system in some future -release of libpcap. - -If you use SINIX, you should be able to build libpcap from this -release. It is known to compile and run on SINIX-Y/N 5.42 with the C-DS -V1.0 or V1.1 compiler. But note that in some releases of SINIX, yacc -emits incorrect code; if grammar.y fails to compile, change every -occurence of: - - #ifdef YYDEBUG - -to: - #if YYDEBUG - -Another workaround is to use flex and bison. - -If you use SCO, you might have trouble building libpcap from this -release. We do not have a machine running SCO and have not had reports -of anyone successfully building on it. Since SCO apparently supports -DLPI, it's possible the current version works. Meanwhile, SCO provides -a tcpdump binary as part of their "Network/Security Tools" package: - - http://www.sco.com/technology/internet/goodies/#SECURITY - -There is also a README that explains how to enable packet capture. - -If you use UnixWare, you will not be able to build libpcap from this -release. We hope to support this operating system in some future -release of libpcap. Meanwhile, there appears to be an UnixWare port of -libpcap 0.0 (and tcpdump 3.0) in: - - ftp://ftp1.freebird.org/pub/mirror/freebird/internet/systools/ - -UnixWare appears to use a hacked version of DLPI. - -If linking tcpdump fails with "Undefined: _alloca" when using bison on -a Sun4, your version of bison is broken. In any case version 1.16 or -higher is recommended (1.14 is known to cause problems 1.16 is known to -work). Either pick up a current version from: - - ftp://ftp.gnu.org/pub/gnu/bison - -or hack around it by inserting the lines: - - #ifdef __GNUC__ - #define alloca __builtin_alloca - #else - #ifdef sparc - #include <alloca.h> - #else - char *alloca (); - #endif - #endif - -right after the (100 line!) GNU license comment in bison.simple, remove -grammar.[co] and fire up make again. - -If you use SunOS 4, your kernel must support streams NIT. If you run a -libpcap program and it dies with: - - /dev/nit: No such device - -You must add streams NIT support to your kernel configuration, run -config and boot the new kernel. - -If you are running a version of SunOS earlier than 4.1, you will need -to replace the Sun supplied /sys/sun{3,4,4c}/OBJ/nit_if.o with the -appropriate version from this distribution's SUNOS4 subdirectory and -build a new kernel: - - nit_if.o.sun3-sunos4 (any flavor of sun3) - nit_if.o.sun4c-sunos4.0.3c (SS1, SS1+, IPC, SLC, etc.) - nit_if.o.sun4-sunos4 (Sun4's not covered by - nit_if.o.sun4c-sunos4.0.3c) - -These nit replacements fix a bug that makes nit essentially unusable in -pre-SunOS 4.1. In addition, our sun4c-sunos4.0.3c nit gives you -timestamps to the resolution of the SS-1 clock (1 us) rather than the -lousy 20ms timestamps Sun gives you (tcpdump will print out the full -timestamp resolution if it finds it's running on a SS-1). - -FILES ------ -CHANGES - description of differences between releases -ChmodBPF/* - Mac OS X startup item to set ownership and permissions - on /dev/bpf* -CREDITS - people that have helped libpcap along -FILES - list of files exported as part of the distribution -INSTALL.txt - this file -LICENSE - the license under which tcpdump is distributed -Makefile.in - compilation rules (input to the configure script) -README - description of distribution -README.aix - notes on using libpcap on AIX -README.dag - notes on using libpcap to capture on Endace DAG devices -README.hpux - notes on using libpcap on HP-UX -README.linux - notes on using libpcap on Linux -README.macosx - notes on using libpcap on Mac OS X -README.septel - notes on using libpcap to capture on Intel/Septel devices -README.tru64 - notes on using libpcap on Digital/Tru64 UNIX -README.Win32 - notes on using libpcap on Win32 systems (with WinPcap) -SUNOS4 - pre-SunOS 4.1 replacement kernel nit modules -VERSION - version of this release -acconfig.h - support for post-2.13 autoconf -aclocal.m4 - autoconf macros -arcnet.h - ARCNET definitions -atmuni31.h - ATM Q.2931 definitions -bpf/net - copy of bpf_filter.c -bpf_dump.c - BPF program printing routines -bpf_filter.c - symlink to bpf/net/bpf_filter.c -bpf_image.c - BPF disassembly routine -config.guess - autoconf support -config.h.in - autoconf input -config.sub - autoconf support -configure - configure script (run this first) -configure.in - configure script source -etherent.c - /etc/ethers support routines -ethertype.h - Ethernet protocol types and names definitions -fad-getad.c - pcap_findalldevs() for systems with getifaddrs() -fad-gifc.c - pcap_findalldevs() for systems with only SIOCGIFLIST -fad-glifc.c - pcap_findalldevs() for systems with SIOCGLIFCONF -fad-null.c - pcap_findalldevs() for systems without capture support -fad-win32.c - pcap_findalldevs() for WinPcap -gencode.c - BPF code generation routines -gencode.h - BPF code generation definitions -grammar.y - filter string grammar -inet.c - network routines -install-sh - BSD style install script -lbl/os-*.h - OS-dependent defines and prototypes -llc.h - 802.2 LLC SAP definitions -missing/* - replacements for missing library functions -mkdep - construct Makefile dependency list -msdos/* - drivers for MS-DOS capture support -nametoaddr.c - hostname to address routines -nlpid.h - OSI network layer protocol identifier definitions -net - symlink to bpf/net -optimize.c - BPF optimization routines -packaging - packaging information for building libpcap RPMs -pcap-bpf.c - BSD Packet Filter support -pcap-bpf.h - BPF definitions -pcap-dag.c - Endace DAG device capture support -pcap-dag.h - Endace DAG device capture support -pcap-dlpi.c - Data Link Provider Interface support -pcap-dos.c - MS-DOS capture support -pcap-dos.h - headers for MS-DOS capture support -pcap-enet.c - enet support -pcap-int.h - internal libpcap definitions -pcap-linux.c - Linux packet socket support -pcap-namedb.h - public libpcap name database definitions -pcap-nit.c - SunOS Network Interface Tap support -pcap-nit.h - SunOS Network Interface Tap definitions -pcap-null.c - dummy monitor support (allows offline use of libpcap) -pcap-pf.c - Ultrix and Digital/Tru64 UNIX Packet Filter support -pcap-pf.h - Ultrix and Digital/Tru64 UNIX Packet Filter definitions -pcap-septel.c - INTEL/Septel device capture support -pcap-septel.h - INTEL/Septel device capture support -pcap-stdinc.h - includes and #defines for compiling on Win32 systems -pcap-snit.c - SunOS 4.x STREAMS-based Network Interface Tap support -pcap-snoop.c - IRIX Snoop network monitoring support -pcap-win32.c - WinPcap capture support -pcap.3 - manual entry -pcap.c - pcap utility routines -pcap.h - public libpcap definitions -ppp.h - Point to Point Protocol definitions -rawss7.h - information on DLT_ types for SS7 -savefile.c - offline support -scanner.l - filter string scanner -sll.h - definitions for Linux cooked mode fake link-layer header -sunatmpos.h - definitions for SunATM capturing -Win32 - headers and routines for building on Win32 systems diff --git a/contrib/libpcap/LICENSE b/contrib/libpcap/LICENSE deleted file mode 100644 index dea5f7d..0000000 --- a/contrib/libpcap/LICENSE +++ /dev/null @@ -1,19 +0,0 @@ -License: BSD - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions -are met: - - 1. Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - 2. Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in - the documentation and/or other materials provided with the - distribution. - 3. The names of the authors may not be used to endorse or promote - products derived from this software without specific prior - written permission. - -THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR -IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED -WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. diff --git a/contrib/libpcap/Makefile.in b/contrib/libpcap/Makefile.in deleted file mode 100644 index 98396ec..0000000 --- a/contrib/libpcap/Makefile.in +++ /dev/null @@ -1,232 +0,0 @@ -# Copyright (c) 1993, 1994, 1995, 1996 -# The Regents of the University of California. All rights reserved. -# -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that: (1) source code distributions -# retain the above copyright notice and this paragraph in its entirety, (2) -# distributions including binary code include the above copyright notice and -# this paragraph in its entirety in the documentation or other materials -# provided with the distribution, and (3) all advertising materials mentioning -# features or use of this software display the following acknowledgement: -# ``This product includes software developed by the University of California, -# Lawrence Berkeley Laboratory and its contributors.'' Neither the name of -# the University nor the names of its contributors may be used to endorse -# or promote products derived from this software without specific prior -# written permission. -# THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED -# WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF -# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. -# -# @(#) $Header: /tcpdump/master/libpcap/Makefile.in,v 1.99.2.2 2007/07/24 02:35:15 mcr Exp $ (LBL) - -# -# Various configurable paths (remember to edit Makefile.in, not Makefile) -# - -# Top level hierarchy -prefix = @prefix@ -exec_prefix = @exec_prefix@ -# Pathname of directory to install the include files -includedir = @includedir@ -# Pathname of directory to install the library -libdir = @libdir@ -# Pathname of directory to install the man page -mandir = @mandir@ - -# VPATH -srcdir = @srcdir@ -VPATH = @srcdir@ - -# -# You shouldn't need to edit anything below. -# - -CC = @CC@ -CCOPT = @V_CCOPT@ -INCLS = -I. @V_INCLS@ -DEFS = @DEFS@ @V_DEFS@ -LIBS = @V_LIBS@ -DAGLIBS = @DAGLIBS@ -DYEXT = @DYEXT@ -PROG=libpcap - -# Standard CFLAGS -CFLAGS = $(CCOPT) $(INCLS) $(DEFS) - -INSTALL = @INSTALL@ -INSTALL_PROGRAM = @INSTALL_PROGRAM@ -INSTALL_DATA = @INSTALL_DATA@ -RANLIB = @RANLIB@ - -# -# Flex and bison allow you to specify the prefixes of the global symbols -# used by the generated parser. This allows programs to use lex/yacc -# and link against libpcap. If you don't have flex or bison, get them. -# -LEX = @V_LEX@ -YACC = @V_YACC@ - -# Explicitly define compilation rule since SunOS 4's make doesn't like gcc. -# Also, gcc does not remove the .o before forking 'as', which can be a -# problem if you don't own the file but can write to the directory. -.c.o: - @rm -f $@ - $(CC) $(CFLAGS) -c $(srcdir)/$*.c - -PSRC = pcap-@V_PCAP@.c -FSRC = fad-@V_FINDALLDEVS@.c -SSRC = @SSRC@ -CSRC = pcap.c inet.c gencode.c optimize.c nametoaddr.c \ - etherent.c savefile.c bpf_filter.c bpf_image.c bpf_dump.c -GENSRC = scanner.c grammar.c version.c -LIBOBJS = @LIBOBJS@ - -SRC = $(PSRC) $(FSRC) $(CSRC) $(SSRC) $(GENSRC) - -# We would like to say "OBJ = $(SRC:.c=.o)" but Ultrix's make cannot -# hack the extra indirection -OBJ = $(PSRC:.c=.o) $(FSRC:.c=.o) $(CSRC:.c=.o) $(SSRC:.c=.o) $(GENSRC:.c=.o) $(LIBOBJS) -HDR = pcap.h pcap-int.h pcap-namedb.h pcap-nit.h pcap-pf.h \ - ethertype.h gencode.h gnuc.h -GENHDR = \ - tokdefs.h version.h - -TAGHDR = \ - pcap-bpf.h - -TAGFILES = \ - $(SRC) $(HDR) $(TAGHDR) - -CLEANFILES = $(OBJ) libpcap.a $(GENSRC) $(GENHDR) lex.yy.c - -all: libpcap.a - -libpcap.a: $(OBJ) - @rm -f $@ - ar rc $@ $(OBJ) $(LIBS) - $(RANLIB) $@ - -shared: libpcap.$(DYEXT) - -# -# XXX - this works with GNU ld, but won't necessarily work with native -# ld on, for example, various SVR4-flavored platforms, or Digital UNIX. -# -libpcap.so: $(OBJ) - @rm -f $@ - $(CC) -shared -o $@.`cat VERSION` $(OBJ) $(DAGLIBS) - -# the following rule succeeds, but the result is untested. -libpcap.dylib: $(OBJ) - rm -f libpcap*.dylib - $(CC) -dynamiclib -undefined error -o libpcap.`cat VERSION`.dylib $(OBJ) \ - -install_name $(libdir)/libpcap.0.dylib -compatibility_version `cat VERSION` \ - -current_version `cat VERSION` - - -scanner.c: $(srcdir)/scanner.l - @rm -f $@ - $(LEX) -t $< > $$$$.$@; mv $$$$.$@ $@ - -scanner.o: scanner.c tokdefs.h - $(CC) $(CFLAGS) -c scanner.c - -pcap.o: version.h - -tokdefs.h: grammar.c -grammar.c: $(srcdir)/grammar.y - @rm -f grammar.c tokdefs.h - $(YACC) -d $< - mv y.tab.c grammar.c - mv y.tab.h tokdefs.h - -grammar.o: grammar.c - @rm -f $@ - $(CC) $(CFLAGS) -Dyylval=pcap_lval -c grammar.c - -version.o: version.c - $(CC) $(CFLAGS) -c version.c - -snprintf.o: $(srcdir)/missing/snprintf.c - $(CC) $(CFLAGS) -o $@ -c $(srcdir)/missing/snprintf.c - -version.c: $(srcdir)/VERSION - @rm -f $@ - sed -e 's/.*/char pcap_version[] = "&";/' $(srcdir)/VERSION > $@ - -# -# NOTE: this really is supposed to be static; importing a string -# from a shared library does not work very well on many -# versions of UNIX (Solaris, Linux, and the BSDs, for example), -# so we make the version string static and return it from -# a function, which does work. -# -version.h: $(srcdir)/VERSION - @rm -f $@ - sed -e 's/.*/static const char pcap_version_string[] = "libpcap version &";/' $(srcdir)/VERSION > $@ - -bpf_filter.c: $(srcdir)/bpf/net/bpf_filter.c - rm -f bpf_filter.c - ln -s $(srcdir)/bpf/net/bpf_filter.c bpf_filter.c - -bpf_filter.o: bpf_filter.c - $(CC) $(CFLAGS) -c bpf_filter.c - -install: libpcap.a - [ -d $(DESTDIR)$(libdir) ] || \ - (mkdir -p $(DESTDIR)$(libdir); chmod 755 $(DESTDIR)$(libdir)) - $(INSTALL_DATA) libpcap.a $(DESTDIR)$(libdir)/libpcap.a - $(RANLIB) $(DESTDIR)$(libdir)/libpcap.a - [ -d $(DESTDIR)$(includedir) ] || \ - (mkdir -p $(DESTDIR)$(includedir); chmod 755 $(DESTDIR)$(includedir)) - $(INSTALL_DATA) $(srcdir)/pcap.h $(DESTDIR)$(includedir)/pcap.h - $(INSTALL_DATA) $(srcdir)/pcap-bpf.h \ - $(DESTDIR)$(includedir)/pcap-bpf.h - $(INSTALL_DATA) $(srcdir)/pcap-namedb.h \ - $(DESTDIR)$(includedir)/pcap-namedb.h - [ -d $(DESTDIR)$(mandir)/man3 ] || \ - (mkdir -p $(DESTDIR)$(mandir)/man3; chmod 755 $(DESTDIR)$(mandir)/man3) - $(INSTALL_DATA) $(srcdir)/pcap.3 \ - $(DESTDIR)$(mandir)/man3/pcap.3 - -install-shared: install-shared-$(DYEXT) -install-shared-so: libpcap.so - $(INSTALL_PROGRAM) libpcap.so.`cat VERSION` $(DESTDIR)$(libdir)/libpcap.so.`cat VERSION` -install-shared-dylib: libpcap.dylib - $(INSTALL_PROGRAM) libpcap.`cat VERSION`.dylib $(DESTDIR)$(libdir)/libpcap.`cat VERSION`.dylib - VER=`cat VERSION`; cd $(DESTDIR)$(libdir) && ln -sf libpcap.$$VER.dylib libpcap.0.dylib; ln -sf libpcap.0.dylib libpcap.dylib - -uninstall: - rm -f $(DESTDIR)$(libdir)/libpcap.a - rm -f $(DESTDIR)$(includedir)/pcap.h - rm -f $(DESTDIR)$(includedir)/pcap-bpf.h - rm -f $(DESTDIR)$(includedir)/pcap-namedb.h - rm -f $(DESTDIR)$(mandir)/man3/pcap.3 - -clean: - rm -f $(CLEANFILES) libpcap*.dylib libpcap.so* - -distclean: clean - rm -f Makefile config.cache config.log config.status \ - config.h gnuc.h os-proto.h bpf_filter.c stamp-h stamp-h.in - rm -rf autom4te.cache - -tags: $(TAGFILES) - ctags -wtd $(TAGFILES) - -packaging/pcap.spec: packaging/pcap.spec.in VERSION - RPMVERSION=`cat VERSION | sed s/-.*//g`; \ - sed -e s/@VERSION@/$$RPMVERSION/ -e s/@NAME@/libpcap-`cat VERSION`/ $< > $@ - -releasetar: - @cwd=`pwd` ; dir=`basename $$cwd` ; name=$(PROG)-`cat VERSION` ; \ - list="" ; make distclean; cd ..; mkdir -p n; cd n; ln -s ../$$dir $$name; \ - tar -c -z -f $$name.tar.gz $$name/. ; - -depend: $(GENSRC) $(GENHDR) bpf_filter.c - ./mkdep -c $(CC) $(DEFS) $(INCLS) $(SRC) - -Makefile: Makefile.in config.status - ./config.status - @echo your Makefile was out of date, now run $(MAKE) again - exit 1 diff --git a/contrib/libpcap/README b/contrib/libpcap/README deleted file mode 100644 index 90571a1..0000000 --- a/contrib/libpcap/README +++ /dev/null @@ -1,94 +0,0 @@ -@(#) $Header: /tcpdump/master/libpcap/README,v 1.30 2004/10/12 02:02:28 guy Exp $ (LBL) - -LIBPCAP 0.9 -Now maintained by "The Tcpdump Group" -See www.tcpdump.org - -Please send inquiries/comments/reports to tcpdump-workers@tcpdump.org - -Anonymous CVS is available via: - cvs -d :pserver:tcpdump@cvs.tcpdump.org:/tcpdump/master login - (password "anoncvs") - cvs -d :pserver:tcpdump@cvs.tcpdump.org:/tcpdump/master checkout libpcap - -Version 0.9 of LIBPCAP can be retrieved with the CVS tag "libpcap_0_9rel1": - cvs -d :pserver:tcpdump@cvs.tcpdump.org:/tcpdump/master checkout -r libpcap_0_9rel1 libpcap - -Please send patches against the master copy to patches@tcpdump.org. - -formerly from Lawrence Berkeley National Laboratory - Network Research Group <libpcap@ee.lbl.gov> - ftp://ftp.ee.lbl.gov/libpcap.tar.Z (0.4) - -This directory contains source code for libpcap, a system-independent -interface for user-level packet capture. libpcap provides a portable -framework for low-level network monitoring. Applications include -network statistics collection, security monitoring, network debugging, -etc. Since almost every system vendor provides a different interface -for packet capture, and since we've developed several tools that -require this functionality, we've created this system-independent API -to ease in porting and to alleviate the need for several -system-dependent packet capture modules in each application. - -Note well: this interface is new and is likely to change. - -For some platforms there are README.{system} files that discuss issues -with the OS's interface for packet capture on those platforms, such as -how to enable support for that interface in the OS, if it's not built in -by default. - -The libpcap interface supports a filtering mechanism based on the -architecture in the BSD packet filter. BPF is described in the 1993 -Winter Usenix paper ``The BSD Packet Filter: A New Architecture for -User-level Packet Capture''. A compressed PostScript version can be -found at - - ftp://ftp.ee.lbl.gov/papers/bpf-usenix93.ps.Z - -or - - http://www.tcpdump.org/papers/bpf-usenix93.ps.Z - -and a gzipped version can be found at - - http://www.tcpdump.org/papers/bpf-usenix93.ps.gz - -A PDF version can be found at - - http://www.tcpdump.org/papers/bpf-usenix93.pdf - -Although most packet capture interfaces support in-kernel filtering, -libpcap utilizes in-kernel filtering only for the BPF interface. -On systems that don't have BPF, all packets are read into user-space -and the BPF filters are evaluated in the libpcap library, incurring -added overhead (especially, for selective filters). Ideally, libpcap -would translate BPF filters into a filter program that is compatible -with the underlying kernel subsystem, but this is not yet implemented. - -BPF is standard in 4.4BSD, BSD/OS, NetBSD, FreeBSD, and OpenBSD. DEC -OSF/1/Digital UNIX/Tru64 UNIX uses the packetfilter interface but has -been extended to accept BPF filters (which libpcap utilizes). Also, you -can add BPF filter support to Ultrix using the kernel source and/or -object patches available in: - - ftp://gatekeeper.dec.com/pub/DEC/net/bpfext42.tar.Z. - -Linux, in the 2.2 kernel and later kernels, has a "Socket Filter" -mechanism that accepts BPF filters; see the README.linux file for -information on configuring that option. - -Problems, bugs, questions, desirable enhancements, etc. should be sent -to the address "tcpdump-workers@tcpdump.org". Bugs, support requests, -and feature requests may also be submitted on the SourceForge site for -libpcap at - - http://sourceforge.net/projects/libpcap/ - -Source code contributions, etc. should be sent to the email address -"patches@tcpdump.org", or submitted as patches on the SourceForge site -for libpcap. - -Current versions can be found at www.tcpdump.org, or the SourceForge -site for libpcap. - - - The TCPdump team diff --git a/contrib/libpcap/README.Win32 b/contrib/libpcap/README.Win32 deleted file mode 100644 index 3116d5e..0000000 --- a/contrib/libpcap/README.Win32 +++ /dev/null @@ -1,46 +0,0 @@ -Under Win32, libpcap is integrated in the WinPcap packet capture system. -WinPcap provides a framework that allows libpcap to capture the packets -under Windows 95, Windows 98, Windows ME, Windows NT 4, Windows 2000 -and Windows XP. -WinPcap binaries and source code can be found at http://winpcap.polito.it: -they include also a developer's pack with all the necessary to compile -libpcap-based applications under Windows. - -How to compile libpcap with Visual Studio ------------------------------------------ - -In order to compile libpcap you will need: - -- version 6 (or higher) of Microsoft Visual Studio -- The November 2001 (or later) edition of Microsoft Platform -Software Development Kit (SDK), that contains some necessary includes -for IPv6 support. You can download it from http://www.microsoft.com/sdk -- the latest WinPcap sources from http://winpcap.polito.it/install - -The WinPcap source code already contains a recent (usually the latest -stable) version of libpcap. If you need to compile a different one, -simply download it from www.tcpdump.org and copy the sources in the -winpcap\wpcap\libpcap folder of the WinPcap distribution. If you want to -compile a libpcap source retrieved from the tcpdump.org CVS, you will -have to create the scanner and the grammar by hand (with lex and yacc) -or with the cygnus makefile, since The Visual Studio project is not able -to build them. - -Open the project file winpcap\wpcap\prj\wpcap.dsw with Visual Studio and -build wpcap.dll. wpcap.lib, the library file to link with the applications, -will be generated in winpcap\wpcap\lib\. wpcap.dll will be generated in -winpcap\wpcap\prj\release or winpcap\wpcap\prj\debug depending on the type -of binary that is being created. - -How to compile libpcap with Cygnus ----------------------------------- - -To build wpcap.dll, cd to the directory WPCAP/PRJ of the WinPcap source code -distribution and type "make". libwpcap.a, the library file to link with the -applications, will be generated in winpcap\wpcap\lib\. wpcap.dll will be -generated in winpcap\wpcap\prj. - -Remember, you CANNOT use the MSVC-generated .lib files with gcc, use -libwpcap.a instead. - -"make install" installs wpcap.dll in the Windows system folder. diff --git a/contrib/libpcap/README.aix b/contrib/libpcap/README.aix deleted file mode 100644 index dcddb61..0000000 --- a/contrib/libpcap/README.aix +++ /dev/null @@ -1,78 +0,0 @@ -Using BPF: - -(1) AIX 4.x's version of BPF is undocumented and somewhat unstandard; the - current BPF support code includes changes that should work around - that; it appears to compile and work on at least one AIX 4.3.3 - machine. - - Note that the BPF driver and the "/dev/bpf" devices might not exist - on your machine; AIX's tcpdump loads the driver and creates the - devices if they don't already exist. Our libpcap should do the - same, and the configure script should detect that it's on an AIX - system and choose BPF even if the devices aren't there. - -(2) If libpcap doesn't compile on your machine when configured to use - BPF, or if the workarounds fail to make it work correctly, you - should send to tcpdump-workers@tcpdump.org a detailed bug report (if - the compile fails, send us the compile error messages; if it - compiles but fails to work correctly, send us as detailed as - possible a description of the symptoms, including indications of the - network link-layer type being wrong or time stamps being wrong). - - If you fix the problems yourself, please send to patches@tcpdump.org - a patch, so we can incorporate them into the next release. - - If you don't fix the problems yourself, you can, as a workaround, - make libpcap use DLPI instead of BPF. - - This can be done by specifying the flag: - - --with-pcap=dlpi - - to the "configure" script for libpcap. - -If you use DLPI: - -(1) It is a good idea to have the latest version of the DLPI driver on - your system, since certain versions may be buggy and cause your AIX - system to crash. DLPI is included in the fileset bos.rte.tty. I - found that the DLPI driver that came with AIX 4.3.2 was buggy, and - had to upgrade to bos.rte.tty 4.3.2.4: - - lslpp -l bos.rte.tty - - bos.rte.tty 4.3.2.4 COMMITTED Base TTY Support and Commands - - Updates for AIX filesets can be obtained from: - ftp://service.software.ibm.com/aix/fixes/ - - These updates can be installed with the smit program. - -(2) After compiling libpcap, you need to make sure that the DLPI driver - is loaded. Type: - - strload -q -d dlpi - - If the result is: - - dlpi: yes - - then the DLPI driver is loaded correctly. - - If it is: - - dlpi: no - - Then you need to type: - - strload -f /etc/dlpi.conf - - Check again with strload -q -d dlpi that the dlpi driver is loaded. - - Alternatively, you can uncomment the lines for DLPI in - /etc/pse.conf and reboot the machine; this way DLPI will always - be loaded when you boot your system. - -(3) There appears to be a problem in the DLPI code in some versions of - AIX, causing a warning about DL_PROMISC_MULTI failing; this might - be responsible for DLPI not being able to capture outgoing packets. diff --git a/contrib/libpcap/README.dag b/contrib/libpcap/README.dag deleted file mode 100644 index acf97ed..0000000 --- a/contrib/libpcap/README.dag +++ /dev/null @@ -1,114 +0,0 @@ - -The following instructions apply if you have a Linux or FreeBSD platform and -want libpcap to support the DAG range of passive network monitoring cards from -Endace (http://www.endace.com, see below for further contact details). - -1) Install and build the DAG software distribution by following the -instructions supplied with that package. Current Endace customers can download -the DAG software distibution from https://www.endace.com - -2) Configure libcap. To allow the 'configure' script to locate the DAG -software distribution use the '--with-dag' option: - - ./configure --with-dag=DIR - -Where DIR is the root of the DAG software distribution, for example -/var/src/dag. If the DAG software is correctly detected 'configure' will -report: - - checking whether we have DAG API... yes - -If 'configure' reports that there is no DAG API, the directory may have been -incorrectly specified or the DAG software was not built before configuring -libpcap. - -See also the libpcap INSTALL.txt file for further libpcap configuration -options. - -Building libpcap at this stage will include support for both the native packet -capture stream (linux or bpf) and for capturing from DAG cards. To build -libpcap with only DAG support specify the capture type as 'dag' when -configuring libpcap: - - ./configure --with-dag=DIR --with-pcap=dag - -Applications built with libpcap configured in this way will only detect DAG -cards and will not capture from the native OS packet stream. - ----------------------------------------------------------------------- - -Libpcap when built for DAG cards against dag-2.5.1 or later releases: - -Timeouts are supported. pcap_dispatch() will return after to_ms milliseconds -regardless of how many packets are received. If to_ms is zero pcap_dispatch() -will block waiting for data indefinitely. - -pcap_dispatch() will block on and process a minimum of 64kB of data (before -filtering) for efficiency. This can introduce high latencies on quiet -interfaces unless a timeout value is set. The timeout expiring will override -the 64kB minimum causing pcap_dispatch() to process any available data and -return. - -pcap_setnonblock is supported. When nonblock is set, pcap_dispatch() will -check once for available data, process any data available up to count, then -return immediately. - -pcap_findalldevs() is supported, e.g. dag0, dag1... - -Some DAG cards can provide more than one 'stream' of received data. -This can be data from different physical ports, or separated by filtering -or load balancing mechanisms. Receive streams have even numbers, e.g. -dag0:0, dag0:2 etc. Specifying transmit streams for capture is not supported. - -pcap_setfilter() is supported, BPF programs run in userspace. - -pcap_setdirection() is not supported. Only received traffic is captured. -DAG cards normally do not have IP or link layer addresses assigned as -they are used to passively monitor links. - -pcap_breakloop() is supported. - -pcap_datalink() and pcap_list_datalinks() are supported. The DAG card does -not attempt to set the correct datalink type automatically where more than -one type is possible. - -pcap_stats() is supported. ps_drop is the number of packets dropped due to -RX stream buffer overflow, this count is before filters are applied (it will -include packets that would have been dropped by the filter). The RX stream -buffer size is user configurable outside libpcap, typically 16-512MB. - -pcap_get_selectable_fd() is not supported, as DAG cards do not support -poll/select methods. - -pcap_inject() and pcap_sendpacket() are not supported. - -Some DAG cards now support capturing to multiple virtual interfaces, called -streams. Capture streams have even numbers. These are available via libpcap -as separate interfaces, e.g. dag0:0, dag0:2, dag0:4 etc. dag0:0 is the same -as dag0. These are visible via pcap_findalldevs(). - -libpcap now does NOT set the card's hardware snaplen (slen). This must now be -set using the appropriate DAG coniguration program, e.g. dagthree, dagfour, -dagsix, dagconfig. This is because the snaplen is currently shared between -all of the streams. In future this may change if per-stream slen is -implemented. - -DAG cards by default capture entire packets including the L2 -CRC/FCS. If the card is not configured to discard the CRC/FCS, this -can confuse applications that use libpcap if they're not prepared for -packets to have an FCS. Libpcap now reads the environment variable -ERF_FCS_BITS to determine how many bits of CRC/FCS to strip from the -end of the captured frame. This defaults to 32 for use with -Ethernet. If the card is configured to strip the CRC/FCS, then set -ERF_FCS_BITS=0. If used with a HDLC/PoS/PPP/Frame Relay link with 16 -bit CRC/FCS, then set ERF_FCS_BITS=16. - ----------------------------------------------------------------------- - -Please submit bug reports via <support@endace.com>. - -Please also visit our Web site at: - - http://www.endace.com/ - -For more information about Endace DAG cards contact <sales@endace.com>. diff --git a/contrib/libpcap/README.hpux b/contrib/libpcap/README.hpux deleted file mode 100644 index 88c27f8..0000000 --- a/contrib/libpcap/README.hpux +++ /dev/null @@ -1,254 +0,0 @@ -For HP-UX 11i (11.11) and later, there are no known issues with -promiscuous mode under HP-UX. If you are using a earlier version of -HP-UX and cannot upgrade, please continue reading. - -HP-UX patches to fix packet capture problems - -Note that packet-capture programs such as tcpdump may, on HP-UX, not be -able to see packets sent from the machine on which they're running. -Some articles on groups.google.com discussing this are: - - http://groups.google.com/groups?selm=82ld3v%2480i%241%40mamenchi.zrz.TU-Berlin.DE - -which says: - - Newsgroups: comp.sys.hp.hpux - Subject: Re: Did someone made tcpdump working on 10.20 ? - Date: 12/08/1999 - From: Lutz Jaenicke <jaenicke@emserv1.ee.TU-Berlin.DE> - - In article <82ks5i$5vc$1@news1.dti.ne.jp>, mtsat <mtsat@iris.dti.ne.jp> - wrote: - >Hello, - > - >I downloaded and compiled tcpdump3.4 a couple of week ago. I tried to use - >it, but I can only see incoming data, never outgoing. - >Someone (raj) explained me that a patch was missing, and that this patch - >must me "patched" (poked) in order to see outbound data in promiscuous mode. - >Many things to do .... So the question is : did someone has already this - >"ready to use" PHNE_**** patch ? - - Two things: - 1. You do need a late "LAN products cumulative patch" (e.g. PHNE_18173 - for s700/10.20). - 2. You must use -echo 'lanc_outbound_promisc_flag/W1' | /usr/bin/adb -w /stand/vmunix /dev/kmem - You can insert this e.g. into /sbin/init.d/lan - - Best regards, - Lutz - -and - - http://groups.google.com/groups?selm=88cf4t%24p03%241%40web1.cup.hp.com - -which says: - - Newsgroups: comp.sys.hp.hpux - Subject: Re: tcpdump only shows incoming packets - Date: 02/15/2000 - From: Rick Jones <foo@bar.baz.invalid> - - Harald Skotnes <harald@cc.uit.no> wrote: - > I am running HPUX 11.0 on a C200 hanging on a 100Mb switch. I have - > compiled libpcap-0.4 an tcpdump-3.4 and it seems to work. But at a - > closer look I only get to see the incoming packets not the - > outgoing. I have tried tcpflow-0.12 which also uses libpcap and the - > same thing happens. Could someone please give me a hint on how to - > get this right? - - Search/Read the archives ?-) - - What you are seeing is expected, un-patched, behaviour for an HP-UX - system. On 11.00, you need to install the latest lancommon/DLPI - patches, and then the latest driver patch for the interface(s) in use. - At that point, a miracle happens and you should start seeing outbound - traffic. - -[That article also mentions the patch that appears below.] - -and - - http://groups.google.com/groups?selm=38AA973E.96BE7DF7%40cc.uit.no - -which says: - - Newsgroups: comp.sys.hp.hpux - Subject: Re: tcpdump only shows incoming packets - Date: 02/16/2000 - From: Harald Skotnes <harald@cc.uit.no> - - Rick Jones wrote: - - ... - - > What you are seeing is expected, un-patched, behaviour for an HP-UX - > system. On 11.00, you need to install the latest lancommon/DLPI - > patches, and then the latest driver patch for the interface(s) in - > use. At that point, a miracle happens and you should start seeing - > outbound traffic. - - Thanks a lot. I have this problem on several machines running HPUX - 10.20 and 11.00. The machines where patched up before y2k so did not - know what to think. Anyway I have now installed PHNE_19766, - PHNE_19826, PHNE_20008, PHNE_20735 on the C200 and now I can see the - outbound traffic too. Thanks again. - -(although those patches may not be the ones to install - there may be -later patches). - -And another message to tcpdump-workers@tcpdump.org, from Rick Jones: - - Date: Mon, 29 Apr 2002 15:59:55 -0700 - From: Rick Jones - To: tcpdump-workers@tcpdump.org - Subject: Re: [tcpdump-workers] I Can't Capture the Outbound Traffic - - ... - - http://itrc.hp.com/ would be one place to start in a search for the most - up-to-date patches for DLPI and the lan driver(s) used on your system (I - cannot guess because 9000/800 is too generic - one hs to use the "model" - command these days and/or an ioscan command (see manpage) to guess what - the drivers (btlan[3456], gelan, etc) might be involved in addition to - DLPI. - - Another option is to upgrade to 11i as outbound promiscuous mode support - is there in the base OS, no patches required. - -Another posting: - - http://groups.google.com/groups?selm=7d6gvn%24b3%241%40ocean.cup.hp.com - -indicates that you need to install the optional STREAMS product to do -captures on HP-UX 9.x: - - Newsgroups: comp.sys.hp.hpux - Subject: Re: tcpdump HP/UX 9.x - Date: 03/22/1999 - From: Rick Jones <foo@bar.baz> - - Dave Barr (barr@cis.ohio-state.edu) wrote: - : Has anyone ported tcpdump (or something similar) to HP/UX 9.x? - - I'm reasonably confident that any port of tcpdump to 9.X would require - the (then optional) STREAMS product. This would bring DLPI, which is - what one uses to access interfaces in promiscuous mode. - - I'm not sure that HP even sells the 9.X STREAMS product any longer, - since HP-UX 9.X is off the pricelist (well, maybe 9.10 for the old 68K - devices). - - Your best bet is to be up on 10.20 or better if that is at all - possible. If your hardware is supported by it, I'd go with HP-UX 11. - If you want to see the system's own outbound traffic, you'll never get - that functionality on 9.X, but it might happen at some point for 10.20 - and 11.X. - - rick jones - -(as per other messages cited here, the ability to see the system's own -outbound traffic did happen). - -Rick Jones reports that HP-UX 11i needs no patches for outbound -promiscuous mode support. - -An additional note, from Jost Martin, for HP-UX 10.20: - - Q: How do I get ethereral on HPUX to capture the _outgoing_ packets - of an interface - A: You need to get PHNE_20892,PHNE_20725 and PHCO_10947 (or - newer, this is as of 4.4.00) and its dependencies. Then you can - enable the feature as descibed below: - - Patch Name: PHNE_20892 - Patch Description: s700 10.20 PCI 100Base-T cumulative patch - To trace the outbound packets, please do the following - to turn on a global promiscuous switch before running - the promiscuous applications like snoop or tcpdump: - - adb -w /stand/vmunix /dev/mem - lanc_outbound_promisc_flag/W 1 - (adb will echo the result showing that the flag has - been changed) - $quit - (Thanks for this part to HP-support, Ratingen) - - The attached hack does this and some security-related stuff - (thanks to hildeb@www.stahl.bau.tu-bs.de (Ralf Hildebrandt) who - posted the security-part some time ago) - - <<hack_ip_stack>> - - (Don't switch IP-forwarding off, if you need it !) - Install the hack as /sbin/init.d/hacl_ip_stack (adjust - permissions !) and make a sequencing-symlink - /sbin/rc2.d/S350hack_ip_stack pointing to this script. - Now all this is done on every reboot. - -According to Rick Jones, the global promiscuous switch also has to be -turned on for HP-UX 11.00, but not for 11i - and, in fact, the switch -doesn't even exist on 11i. - -Here's the "hack_ip_stack" script: - ------------------------------------Cut Here------------------------------------- -#!/sbin/sh -# -# nettune: hack kernel parms for safety - -OKAY=0 -ERROR=-1 - -# /usr/contrib/bin fuer nettune auf Pfad -PATH=/sbin:/usr/sbin:/usr/bin:/usr/contrib/bin -export PATH - - -########## -# main # -########## - -case $1 in - start_msg) - print "Tune IP-Stack for security" - exit $OKAY - ;; - - stop_msg) - print "This action is not applicable" - exit $OKAY - ;; - - stop) - exit $OKAY - ;; - - start) - ;; # fall through - - *) - print "USAGE: $0 {start_msg | stop_msg | start | stop}" >&2 - exit $ERROR - ;; - esac - -########### -# start # -########### - -# -# tcp-Sequence-Numbers nicht mehr inkrementieren sondern random -# Syn-Flood-Protection an -# ip_forwarding aus -# Source-Routing aus -# Ausgehende Packets an ethereal/tcpdump etc. - -/usr/contrib/bin/nettune -s tcp_random_seq 2 || exit $ERROR -/usr/contrib/bin/nettune -s hp_syn_protect 1 || exit $ERROR -/usr/contrib/bin/nettune -s ip_forwarding 0 || exit $ERROR -echo 'ip_block_source_routed/W1' | /usr/bin/adb -w /stand/vmunix /dev/kmem || exit $ERROR -echo 'lanc_outbound_promisc_flag/W 1' | adb -w /stand/vmunix /dev/mem || exit $ERROR - -exit $OKAY ------------------------------------Cut Here------------------------------------- diff --git a/contrib/libpcap/README.linux b/contrib/libpcap/README.linux deleted file mode 100644 index dd95913..0000000 --- a/contrib/libpcap/README.linux +++ /dev/null @@ -1,88 +0,0 @@ -In order for libpcap to be able to capture packets on a Linux system, -the "packet" protocol must be supported by your kernel. If it is not, -you may get error messages such as - - modprobe: can't locate module net-pf-17 - -in "/var/adm/messages", or may get messages such as - - socket: Address family not supported by protocol - -from applications using libpcap. - -You must configure the kernel with the CONFIG_PACKET option for this -protocol; the following note is from the Linux "Configure.help" file for -the 2.0[.x] kernel: - - Packet socket - CONFIG_PACKET - The Packet protocol is used by applications which communicate - directly with network devices without an intermediate network - protocol implemented in the kernel, e.g. tcpdump. If you want them - to work, choose Y. - - This driver is also available as a module called af_packet.o ( = - code which can be inserted in and removed from the running kernel - whenever you want). If you want to compile it as a module, say M - here and read Documentation/modules.txt; if you use modprobe or - kmod, you may also want to add "alias net-pf-17 af_packet" to - /etc/modules.conf. - -and the note for the 2.2[.x] kernel says: - - Packet socket - CONFIG_PACKET - The Packet protocol is used by applications which communicate - directly with network devices without an intermediate network - protocol implemented in the kernel, e.g. tcpdump. If you want them - to work, choose Y. This driver is also available as a module called - af_packet.o ( = code which can be inserted in and removed from the - running kernel whenever you want). If you want to compile it as a - module, say M here and read Documentation/modules.txt. You will - need to add 'alias net-pf-17 af_packet' to your /etc/conf.modules - file for the module version to function automatically. If unsure, - say Y. - -In addition, there is an option that, in 2.2 and later kernels, will -allow packet capture filters specified to programs such as tcpdump to be -executed in the kernel, so that packets that don't pass the filter won't -be copied from the kernel to the program, rather than having all packets -copied to the program and libpcap doing the filtering in user mode. - -Copying packets from the kernel to the program consumes a significant -amount of CPU, so filtering in the kernel can reduce the overhead of -capturing packets if a filter has been specified that discards a -significant number of packets. (If no filter is specified, it makes no -difference whether the filtering isn't performed in the kernel or isn't -performed in user mode. :-)) - -The option for this is the CONFIG_FILTER option; the "Configure.help" -file says: - - Socket filtering - CONFIG_FILTER - The Linux Socket Filter is derived from the Berkeley Packet Filter. - If you say Y here, user-space programs can attach a filter to any - socket and thereby tell the kernel that it should allow or disallow - certain types of data to get through the socket. Linux Socket - Filtering works on all socket types except TCP for now. See the text - file linux/Documentation/networking/filter.txt for more information. - If unsure, say N. - - -Statistics: -Statistics reported by pcap are platform specific. The statistics -reported by pcap_stats on Linux are as follows: - -2.2.x -===== -ps_recv Number of packets that were accepted by the pcap filter -ps_drops Always 0, this statistic is not gatherd on this platform - -2.4.x -===== -ps_rec Number of packets that were accepted by the pcap filter -ps_drops Number of packets that had passed filtering but were not - passed on to pcap due to things like buffer shortage, etc. - This is useful because these are packets you are interested in - but won't be reported by, for example, tcpdump output. diff --git a/contrib/libpcap/README.macosx b/contrib/libpcap/README.macosx deleted file mode 100644 index 25794d8..0000000 --- a/contrib/libpcap/README.macosx +++ /dev/null @@ -1,43 +0,0 @@ -As with other systems using BPF, Mac OS X allows users with read access -to the BPF devices to capture packets with libpcap and allows users with -write access to the BPF devices to send packets with libpcap. - -On some systems that use BPF, the BPF devices live on the root file -system, and the permissions and/or ownership on those devices can be -changed to give users other than root permission to read or write those -devices. - -On newer versions of FreeBSD, the BPF devices live on devfs, and devfs -can be configured to set the permissions and/or ownership of those -devices to give users other than root permission to read or write those -devices. - -On Mac OS X, the BPF devices live on devfs, but the OS X version of -devfs is based on an older (non-default) FreeBSD devfs, and that version -of devfs cannot be configured to set the permissions and/or ownership of -those devices. - -Therefore, we supply a "startup item" for OS X that will change the -ownership of the BPF devices so that the "admin" group owns them, and -will change the permission of the BPF devices to rw-rw----, so that all -users in the "admin" group - i.e., all users with "Allow user to -administer this computer" turned on - have both read and write access to -them. - -The startup item is in the ChmodBPF directory in the source tree. A -/Library/StartupItems directory should be created if it doesn't already -exist, and the ChmodBPF directory should be copied to the -/Library/StartupItems directory (copy the entire directory, so that -there's a /Library/StartupItems/ChmodBPF directory, containing all the -files in the source tree's ChmodBPF directory; don't copy the individual -items in that directory to /Library/StartupItems). - -If you want to give a particular user permission to access the BPF -devices, rather than giving all administrative users permission to -access them, you can have the ChmodBPF/ChmodBPF script change the -ownership of /dev/bpf* without changing the permissions. If you want to -give a particular user permission to read and write the BPF devices and -give the administrative users permission to read but not write the BPF -devices, you can have the script change the owner to that user, the -group to "admin", and the permissions to rw-r-----. Other possibilities -are left as an exercise for the reader. diff --git a/contrib/libpcap/README.septel b/contrib/libpcap/README.septel deleted file mode 100644 index fbc88df..0000000 --- a/contrib/libpcap/README.septel +++ /dev/null @@ -1,50 +0,0 @@ -The following instructions apply if you have a Linux platform and want -libpcap to support the Septel range of passive network monitoring cards -from Intel (http://www.intel.com) - -1) Install and build the Septel software distribution by following the -instructions supplied with that package. - -2) Configure libcap. To allow the 'configure' script to locate the Septel -software distribution use the '--with-septel' option: - - ./configure --with-septel=DIR - -where DIR is the root of the Septel software distribution, for example -/var/src/septel. - -By default (if you write only ./configure --with-septel) it takes -./../septel as argument for DIR. - -If the Septel software is correctly detected 'configure' will -report: - - checking whether we have Septel API... yes - -If 'configure' reports that there is no Septel API, the directory may have been -incorrectly specified or the Septel software was not built before configuring -libpcap. - -See also the libpcap INSTALL.txt file for further libpcap configuration -options. - -Building libpcap at this stage will include support for both the native -packet capture stream and for capturing from Septel cards. To build -libpcap with only Septel support specify the capture type as 'septel' -when configuring libpcap: - - ./configure --with-septel=DIR --with-pcap=septel - -Applications built with libpcap configured in this way will only detect Septel -cards and will not capture from the native OS packet stream. - -Note: As mentioned in pcap-septel.c we should first edit the system.txt -file to change the user part example (UPE) module id to 0xdd instead of -0x2d for technical reason. So this change in system.txt is crutial and -things will go wrong if it's not done. System.txt along with config.txt -are configuration files that are edited by the user before running the -gctload program that uses these files for initialising modules and -configuring parameters. - ----------------------------------------------------------------------- -for more information please contact me : gil_hoyek@hotmail.com diff --git a/contrib/libpcap/README.tru64 b/contrib/libpcap/README.tru64 deleted file mode 100644 index 7fe1ef0..0000000 --- a/contrib/libpcap/README.tru64 +++ /dev/null @@ -1,49 +0,0 @@ -The following instructions are applicable to Tru64 UNIX -(formerly Digital UNIX (formerly DEC OSF/1)) version 4.0, and -probably to later versions as well; at least some options apply to -Digital UNIX 3.2 - perhaps all do. - -In order to use kernel packet filtering on this system, you have -to configure it in such a way: - -Kernel configuration --------------------- - -The packet filtering kernel option must be enabled at kernel -installation. If it was not the case, you can rebuild the kernel with -"doconfig -c" after adding the following line in the kernel -configuration file (/sys/conf/<HOSTNAME>): - - option PACKETFILTER - -or use "doconfig" without any arguments to add the packet filter driver -option via the kernel option menu (see the system administration -documentation for information on how to do this). - -Device configuration --------------------- - -Devices used for packet filtering must be created thanks to -the following command (executed in the /dev directory): - - ./MAKEDEV pfilt - -Interface configuration ------------------------ - -In order to capture all packets on a network, you may want to allow -applications to put the interface on that network into "local copy" -mode, so that tcpdump can see packets sent by the host on which it's -running as well as packets received by that host, and to put the -interface into "promiscuous" mode, so that tcpdump can see packets on -the network segment not sent to the host on which it's running, by using -the pfconfig(1) command: - - pfconfig +c +p <network_device> - -or allow application to put any interface into "local copy" or -"promiscuous" mode by using the command: - - pfconfig +c +p -a - -Note: all instructions given require root privileges. diff --git a/contrib/libpcap/TODO b/contrib/libpcap/TODO deleted file mode 100644 index 3de4530..0000000 --- a/contrib/libpcap/TODO +++ /dev/null @@ -1,35 +0,0 @@ - TODO list for libpcap -======================= - -Important stuff (to be done before the next release) ---------------- - -General - -- configure should not be in the CVS. Most open source projects have an - autogen.sh script to run autoconf etc. after checkout. I think we - should stick to the standard. - -- The source files should be better documented. There is no official - design guideline for what is done where. There should be a common coding - style (okay, you can guess that by looking at the code) and a guide for - what needs to be documented. - -Less urgent items ------------------ - -- Better documentation and cleanup of the interface. I am seeing a few - problems at the first glance which needs fixing: - + pcap_lookupnet makes little to no sense with protocols != IPv4 - + not very well suited for interactive programs (think ethereal). There - should be a way for the application to get a file descriptor which it - has to monitor and a callback in pcap which has to be called on - activity (XXX - "pcap_fileno()" handles the first part, although - "select()" and "poll()" don't work on BPF devices on most BSDs, and - you can call "pcap_dispatch()" as the dispatch routine after putting - the descriptor into non-blocking mode) - + too many functions. There are a lot of functions for everything which - violates the KISS principle. Why do we need pcap_strerror, pcap_perror - and pcap_geterr? - + the manpage has a brief description of each function but where is the - big picture? Seems like you need to buy UNP for that... diff --git a/contrib/libpcap/VERSION b/contrib/libpcap/VERSION deleted file mode 100644 index e3e1807..0000000 --- a/contrib/libpcap/VERSION +++ /dev/null @@ -1 +0,0 @@ -0.9.8 diff --git a/contrib/libpcap/acconfig.h b/contrib/libpcap/acconfig.h deleted file mode 100644 index a23f320..0000000 --- a/contrib/libpcap/acconfig.h +++ /dev/null @@ -1,7 +0,0 @@ -/* Long story short: aclocal.m4 depends on autoconf 2.13 - * implementation details wrt "const"; newer versions - * have different implementation details so for now we - * put "const" here. This may cause duplicate definitions - * in config.h but that should be OK since they're the same. - */ -#undef const diff --git a/contrib/libpcap/aclocal.m4 b/contrib/libpcap/aclocal.m4 deleted file mode 100644 index 1efb474..0000000 --- a/contrib/libpcap/aclocal.m4 +++ /dev/null @@ -1,900 +0,0 @@ -dnl @(#) $Header: /tcpdump/master/libpcap/aclocal.m4,v 1.85.2.1 2005/04/21 03:42:09 guy Exp $ (LBL) -dnl -dnl Copyright (c) 1995, 1996, 1997, 1998 -dnl The Regents of the University of California. All rights reserved. -dnl -dnl Redistribution and use in source and binary forms, with or without -dnl modification, are permitted provided that: (1) source code distributions -dnl retain the above copyright notice and this paragraph in its entirety, (2) -dnl distributions including binary code include the above copyright notice and -dnl this paragraph in its entirety in the documentation or other materials -dnl provided with the distribution, and (3) all advertising materials mentioning -dnl features or use of this software display the following acknowledgement: -dnl ``This product includes software developed by the University of California, -dnl Lawrence Berkeley Laboratory and its contributors.'' Neither the name of -dnl the University nor the names of its contributors may be used to endorse -dnl or promote products derived from this software without specific prior -dnl written permission. -dnl THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED -dnl WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF -dnl MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. -dnl -dnl LBL autoconf macros -dnl - -dnl -dnl Determine which compiler we're using (cc or gcc) -dnl If using gcc, determine the version number -dnl If using cc, require that it support ansi prototypes -dnl If using gcc, use -O2 (otherwise use -O) -dnl If using cc, explicitly specify /usr/local/include -dnl -dnl usage: -dnl -dnl AC_LBL_C_INIT(copt, incls) -dnl -dnl results: -dnl -dnl $1 (copt set) -dnl $2 (incls set) -dnl CC -dnl LDFLAGS -dnl ac_cv_lbl_gcc_vers -dnl LBL_CFLAGS -dnl -AC_DEFUN(AC_LBL_C_INIT, - [AC_PREREQ(2.12) - AC_BEFORE([$0], [AC_PROG_CC]) - AC_BEFORE([$0], [AC_LBL_FIXINCLUDES]) - AC_BEFORE([$0], [AC_LBL_DEVEL]) - AC_ARG_WITH(gcc, [ --without-gcc don't use gcc]) - $1="-O" - $2="" - if test "${srcdir}" != "." ; 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then - AC_DEFINE(HAVE_SOCKADDR_STORAGE,1,[if struct sockaddr_storage exists]) - fi]) - -dnl -dnl Checks to see if the dl_hp_ppa_info_t struct has the HP-UX 11.00 -dnl dl_module_id_1 member -dnl -dnl usage: -dnl -dnl AC_LBL_HP_PPA_INFO_T_DL_MODULE_ID_1 -dnl -dnl results: -dnl -dnl HAVE_HP_PPA_INFO_T_DL_MODULE_ID_1 (defined) -dnl -dnl NOTE: any compile failure means we conclude that it doesn't have -dnl that member, so if we don't have DLPI, don't have a <sys/dlpi_ext.h> -dnl header, or have one that doesn't declare a dl_hp_ppa_info_t type, -dnl we conclude it doesn't have that member (which is OK, as either we -dnl won't be using code that would use that member, or we wouldn't -dnl compile in any case). -dnl -AC_DEFUN(AC_LBL_HP_PPA_INFO_T_DL_MODULE_ID_1, - [AC_MSG_CHECKING(if dl_hp_ppa_info_t struct has dl_module_id_1 member) - AC_CACHE_VAL(ac_cv_lbl_dl_hp_ppa_info_t_has_dl_module_id_1, - AC_TRY_COMPILE([ -# include <sys/types.h> -# include <sys/dlpi.h> -# include <sys/dlpi_ext.h>], - [u_int i = sizeof(((dl_hp_ppa_info_t *)0)->dl_module_id_1)], - ac_cv_lbl_dl_hp_ppa_info_t_has_dl_module_id_1=yes, - ac_cv_lbl_dl_hp_ppa_info_t_has_dl_module_id_1=no)) - AC_MSG_RESULT($ac_cv_lbl_dl_hp_ppa_info_t_has_dl_module_id_1) - if test $ac_cv_lbl_dl_hp_ppa_info_t_has_dl_module_id_1 = yes ; then - AC_DEFINE(HAVE_HP_PPA_INFO_T_DL_MODULE_ID_1,1,[if ppa_info_t_dl_module_id exists]) - fi]) - -dnl -dnl Checks to see if -R is used -dnl -dnl usage: -dnl -dnl AC_LBL_HAVE_RUN_PATH -dnl -dnl results: -dnl -dnl ac_cv_lbl_have_run_path (yes or no) -dnl -AC_DEFUN(AC_LBL_HAVE_RUN_PATH, - [AC_MSG_CHECKING(for ${CC-cc} -R) - AC_CACHE_VAL(ac_cv_lbl_have_run_path, - [echo 'main(){}' > conftest.c - ${CC-cc} -o conftest conftest.c -R/a1/b2/c3 >conftest.out 2>&1 - if test ! -s conftest.out ; then - ac_cv_lbl_have_run_path=yes - else - ac_cv_lbl_have_run_path=no - fi - rm -f conftest*]) - AC_MSG_RESULT($ac_cv_lbl_have_run_path) - ]) - -dnl -dnl Due to the stupid way it's implemented, AC_CHECK_TYPE is nearly useless. -dnl -dnl usage: -dnl -dnl AC_LBL_CHECK_TYPE -dnl -dnl results: -dnl -dnl int32_t (defined) -dnl u_int32_t (defined) -dnl -AC_DEFUN(AC_LBL_CHECK_TYPE, - [AC_MSG_CHECKING(for $1 using $CC) - AC_CACHE_VAL(ac_cv_lbl_have_$1, - AC_TRY_COMPILE([ -# include "confdefs.h" -# include <sys/types.h> -# if STDC_HEADERS -# include <stdlib.h> -# include <stddef.h> -# endif], - [$1 i], - ac_cv_lbl_have_$1=yes, - ac_cv_lbl_have_$1=no)) - AC_MSG_RESULT($ac_cv_lbl_have_$1) - if test $ac_cv_lbl_have_$1 = no ; then - AC_DEFINE($1, $2, [if we have $1]) - fi]) - -dnl -dnl Checks to see if unaligned memory accesses fail -dnl -dnl usage: -dnl -dnl AC_LBL_UNALIGNED_ACCESS -dnl -dnl results: -dnl -dnl LBL_ALIGN (DEFINED) -dnl -AC_DEFUN(AC_LBL_UNALIGNED_ACCESS, - [AC_MSG_CHECKING(if unaligned accesses fail) - AC_CACHE_VAL(ac_cv_lbl_unaligned_fail, - [case "$host_cpu" in - - # - # These are CPU types where: - # - # the CPU faults on an unaligned access, but at least some - # OSes that support that CPU catch the fault and simulate - # the unaligned access (e.g., Alpha/{Digital,Tru64} UNIX) - - # the simulation is slow, so we don't want to use it; - # - # the CPU, I infer (from the old - # - # XXX: should also check that they don't do weird things (like on arm) - # - # comment) doesn't fault on unaligned accesses, but doesn't - # do a normal unaligned fetch, either (e.g., presumably, ARM); - # - # for whatever reason, the test program doesn't work - # (this has been claimed to be the case for several of those - # CPUs - I don't know what the problem is; the problem - # was reported as "the test program dumps core" for SuperH, - # but that's what the test program is *supposed* to do - - # it dumps core before it writes anything, so the test - # for an empty output file should find an empty output - # file and conclude that unaligned accesses don't work). - # - # This run-time test won't work if you're cross-compiling, so - # in order to support cross-compiling for a particular CPU, - # we have to wire in the list of CPU types anyway, as far as - # I know, so perhaps we should just have a set of CPUs on - # which we know it doesn't work, a set of CPUs on which we - # know it does work, and have the script just fail on other - # cpu types and update it when such a failure occurs. - # - alpha*|arm*|hp*|mips*|sh*|sparc*|ia64|nv1) - ac_cv_lbl_unaligned_fail=yes - ;; - - *) - cat >conftest.c <<EOF -# include <sys/types.h> -# include <sys/wait.h> -# include <stdio.h> - unsigned char a[[5]] = { 1, 2, 3, 4, 5 }; - main() { - unsigned int i; - pid_t pid; - int status; - /* avoid "core dumped" message */ - pid = fork(); - if (pid < 0) - exit(2); - if (pid > 0) { - /* parent */ - pid = waitpid(pid, &status, 0); - if (pid < 0) - exit(3); - exit(!WIFEXITED(status)); - } - /* child */ - i = *(unsigned int *)&a[[1]]; - printf("%d\n", i); - exit(0); - } -EOF - ${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS \ - conftest.c $LIBS >/dev/null 2>&1 - if test ! -x conftest ; then - dnl failed to compile for some reason - ac_cv_lbl_unaligned_fail=yes - else - ./conftest >conftest.out - if test ! -s conftest.out ; then - ac_cv_lbl_unaligned_fail=yes - else - ac_cv_lbl_unaligned_fail=no - fi - fi - rm -f conftest* core core.conftest - ;; - esac]) - AC_MSG_RESULT($ac_cv_lbl_unaligned_fail) - if test $ac_cv_lbl_unaligned_fail = yes ; then - AC_DEFINE(LBL_ALIGN,1,[if unaligned access fails]) - fi]) - -dnl -dnl If using gcc and the file .devel exists: -dnl Compile with -g (if supported) and -Wall -dnl If using gcc 2, do extra prototype checking -dnl If an os prototype include exists, symlink os-proto.h to it -dnl -dnl usage: -dnl -dnl AC_LBL_DEVEL(copt) -dnl -dnl results: -dnl -dnl $1 (copt appended) -dnl HAVE_OS_PROTO_H (defined) -dnl os-proto.h (symlinked) -dnl -AC_DEFUN(AC_LBL_DEVEL, - [rm -f os-proto.h - if test "${LBL_CFLAGS+set}" = set; then - $1="$$1 ${LBL_CFLAGS}" - fi - if test -f .devel ; then - if test "$GCC" = yes ; then - if test "${LBL_CFLAGS+set}" != set; then - if test "$ac_cv_prog_cc_g" = yes ; then - $1="-g $$1" - fi - $1="$$1 -Wall" - if test $ac_cv_lbl_gcc_vers -gt 1 ; then - $1="$$1 -Wmissing-prototypes -Wstrict-prototypes" - fi - fi - else - case "$target_os" in - - irix6*) - V_CCOPT="$V_CCOPT -n32" - ;; - - *) - ;; - esac - fi - os=`echo $target_os | sed -e 's/\([[0-9]][[0-9]]*\)[[^0-9]].*$/\1/'` - name="lbl/os-$os.h" - if test -f $name ; then - ln -s $name os-proto.h - AC_DEFINE(HAVE_OS_PROTO_H,1,[if there's an os_proto.h]) - else - AC_MSG_WARN(can't find $name) - fi - fi]) - -dnl -dnl Improved version of AC_CHECK_LIB -dnl -dnl Thanks to John Hawkinson (jhawk@mit.edu) -dnl -dnl usage: -dnl -dnl AC_LBL_CHECK_LIB(LIBRARY, FUNCTION [, ACTION-IF-FOUND [, -dnl ACTION-IF-NOT-FOUND [, OTHER-LIBRARIES]]]) -dnl -dnl results: -dnl -dnl LIBS -dnl - -define(AC_LBL_CHECK_LIB, -[AC_MSG_CHECKING([for $2 in -l$1]) -dnl Use a cache variable name containing both the library and function name, -dnl because the test really is for library $1 defining function $2, not -dnl just for library $1. Separate tests with the same $1 and different $2's -dnl may have different results. -ac_lib_var=`echo $1['_']$2['_']$5 | sed 'y%./+- %__p__%'` -AC_CACHE_VAL(ac_cv_lbl_lib_$ac_lib_var, -[ac_save_LIBS="$LIBS" -LIBS="-l$1 $5 $LIBS" -AC_TRY_LINK(dnl -ifelse([$2], [main], , dnl Avoid conflicting decl of main. -[/* Override any gcc2 internal prototype to avoid an error. */ -]ifelse(AC_LANG, CPLUSPLUS, [#ifdef __cplusplus -extern "C" -#endif -])dnl -[/* We use char because int might match the return type of a gcc2 - builtin and then its argument prototype would still apply. */ -char $2(); -]), - [$2()], - eval "ac_cv_lbl_lib_$ac_lib_var=yes", - eval "ac_cv_lbl_lib_$ac_lib_var=no") -LIBS="$ac_save_LIBS" -])dnl -if eval "test \"`echo '$ac_cv_lbl_lib_'$ac_lib_var`\" = yes"; then - AC_MSG_RESULT(yes) - ifelse([$3], , -[changequote(, )dnl - ac_tr_lib=HAVE_LIB`echo $1 | sed -e 's/[^a-zA-Z0-9_]/_/g' \ - -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'` -changequote([, ])dnl - AC_DEFINE_UNQUOTED($ac_tr_lib) - LIBS="-l$1 $LIBS" -], [$3]) -else - AC_MSG_RESULT(no) -ifelse([$4], , , [$4 -])dnl -fi -]) - -dnl -dnl AC_LBL_LIBRARY_NET -dnl -dnl This test is for network applications that need socket() and -dnl gethostbyname() -ish functions. Under Solaris, those applications -dnl need to link with "-lsocket -lnsl". Under IRIX, they need to link -dnl with "-lnsl" but should *not* link with "-lsocket" because -dnl libsocket.a breaks a number of things (for instance: -dnl gethostbyname() under IRIX 5.2, and snoop sockets under most -dnl versions of IRIX). -dnl -dnl Unfortunately, many application developers are not aware of this, -dnl and mistakenly write tests that cause -lsocket to be used under -dnl IRIX. It is also easy to write tests that cause -lnsl to be used -dnl under operating systems where neither are necessary (or useful), -dnl such as SunOS 4.1.4, which uses -lnsl for TLI. -dnl -dnl This test exists so that every application developer does not test -dnl this in a different, and subtly broken fashion. - -dnl It has been argued that this test should be broken up into two -dnl seperate tests, one for the resolver libraries, and one for the -dnl libraries necessary for using Sockets API. Unfortunately, the two -dnl are carefully intertwined and allowing the autoconf user to use -dnl them independantly potentially results in unfortunate ordering -dnl dependancies -- as such, such component macros would have to -dnl carefully use indirection and be aware if the other components were -dnl executed. Since other autoconf macros do not go to this trouble, -dnl and almost no applications use sockets without the resolver, this -dnl complexity has not been implemented. -dnl -dnl The check for libresolv is in case you are attempting to link -dnl statically and happen to have a libresolv.a lying around (and no -dnl libnsl.a). -dnl -AC_DEFUN(AC_LBL_LIBRARY_NET, [ - # Most operating systems have gethostbyname() in the default searched - # libraries (i.e. libc): - # Some OSes (eg. Solaris) place it in libnsl - # Some strange OSes (SINIX) have it in libsocket: - AC_SEARCH_LIBS(gethostbyname, nsl socket resolv) - # Unfortunately libsocket sometimes depends on libnsl and - # AC_SEARCH_LIBS isn't up to the task of handling dependencies like this. - if test "$ac_cv_search_gethostbyname" = "no" - then - AC_CHECK_LIB(socket, gethostbyname, - LIBS="-lsocket -lnsl $LIBS", , -lnsl) - fi - AC_SEARCH_LIBS(socket, socket, , - AC_CHECK_LIB(socket, socket, LIBS="-lsocket -lnsl $LIBS", , -lnsl)) - # DLPI needs putmsg under HPUX so test for -lstr while we're at it - AC_SEARCH_LIBS(putmsg, str) - ]) - -dnl -dnl Test for __attribute__ -dnl - -AC_DEFUN(AC_C___ATTRIBUTE__, [ -AC_MSG_CHECKING(for __attribute__) -AC_CACHE_VAL(ac_cv___attribute__, [ -AC_COMPILE_IFELSE( - AC_LANG_SOURCE([[ -#include <stdlib.h> - -static void foo(void) __attribute__ ((noreturn)); - -static void -foo(void) -{ - exit(1); -} - -int -main(int argc, char **argv) -{ - foo(); -} - ]]), -ac_cv___attribute__=yes, -ac_cv___attribute__=no)]) -if test "$ac_cv___attribute__" = "yes"; then - AC_DEFINE(HAVE___ATTRIBUTE__, 1, [define if your compiler has __attribute__]) - V_DEFS="$V_DEFS -D_U_=\"__attribute__((unused))\"" -else - V_DEFS="$V_DEFS -D_U_=\"\"" -fi -AC_MSG_RESULT($ac_cv___attribute__) -]) - -dnl -dnl Checks to see if tpacket_stats is defined in linux/if_packet.h -dnl If so then pcap-linux.c can use this to report proper statistics. -dnl -dnl -Scott Barron -dnl -AC_DEFUN(AC_LBL_TPACKET_STATS, - [AC_MSG_CHECKING(if if_packet.h has tpacket_stats defined) - AC_CACHE_VAL(ac_cv_lbl_tpacket_stats, - AC_TRY_COMPILE([ -# include <linux/if_packet.h>], - [struct tpacket_stats stats], - ac_cv_lbl_tpacket_stats=yes, - ac_cv_lbl_tpacket_stats=no)) - AC_MSG_RESULT($ac_cv_lbl_tpacket_stats) - if test $ac_cv_lbl_tpacket_stats = yes; then - AC_DEFINE(HAVE_TPACKET_STATS,1,[if if_packet.h has tpacket_stats defined]) - fi]) diff --git a/contrib/libpcap/acsite.m4 b/contrib/libpcap/acsite.m4 deleted file mode 100644 index 746faf1..0000000 --- a/contrib/libpcap/acsite.m4 +++ /dev/null @@ -1,505 +0,0 @@ -dnl @(#) $Header: acsite.m4,v 1.41 96/11/29 15:30:40 leres Exp $ (LBL) -dnl -dnl Copyright (c) 1995, 1996 -dnl The Regents of the University of California. All rights reserved. -dnl -dnl Redistribution and use in source and binary forms, with or without -dnl modification, are permitted provided that: (1) source code distributions -dnl retain the above copyright notice and this paragraph in its entirety, (2) -dnl distributions including binary code include the above copyright notice and -dnl this paragraph in its entirety in the documentation or other materials -dnl provided with the distribution, and (3) all advertising materials mentioning -dnl features or use of this software display the following acknowledgement: -dnl ``This product includes software developed by the University of California, -dnl Lawrence Berkeley Laboratory and its contributors.'' Neither the name of -dnl the University nor the names of its contributors may be used to endorse -dnl or promote products derived from this software without specific prior -dnl written permission. -dnl THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED -dnl WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF -dnl MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. -dnl -dnl LBL autoconf macros -dnl - -dnl -dnl Determine which compiler we're using (cc or gcc) -dnl If using gcc, determine the version number -dnl If using cc, require that it support ansi prototypes -dnl If using gcc, use -O2 (otherwise use -O) -dnl If using cc, explicitly specify /usr/local/include -dnl -dnl usage: -dnl -dnl AC_LBL_C_INIT(copt, incls) -dnl -dnl results: -dnl -dnl $1 (copt set) -dnl $2 (incls set) -dnl CC -dnl ac_cv_gcc_vers -dnl LBL_CFLAGS -dnl -dnl XXX need to add test to make sure ac_prog_cc hasn't been called -AC_DEFUN(AC_LBL_C_INIT, - [AC_PREREQ(2.12) - $1=-O - $2="" - if test "${CFLAGS+set}" = set; then - LBL_CFLAGS="$CFLAGS" - fi - if test -z "$CC" ; then - case "$target_os" in - - bsdi*) - AC_CHECK_PROG(SHLICC2, shlicc2, yes, no) - if test $SHLICC2 = yes ; then - CC=shlicc2 - export CC - fi - ;; - esac - fi - AC_PROG_CC - if test $ac_cv_prog_gcc = yes ; then - if test "$SHLICC2" = yes ; then - ac_cv_gcc_vers=2 - $1=-O2 - else - AC_MSG_CHECKING(gcc version) - AC_CACHE_VAL(ac_cv_gcc_vers, - ac_cv_gcc_vers=`$CC -v 2>&1 | \ - sed -n -e '$s/.* //' -e '$s/\..*//p'`) - AC_MSG_RESULT($ac_cv_gcc_vers) - if test $ac_cv_gcc_vers -gt 1 ; then - $1=-O2 - fi - fi - else - AC_MSG_CHECKING(that $CC handles ansi prototypes) - AC_CACHE_VAL(ac_cv_cc_ansi_prototypes, - AC_TRY_COMPILE( - [#include <sys/types.h>], - [int frob(int, char *)], - ac_cv_cc_ansi_prototypes=yes, - ac_cv_cc_ansi_prototypes=no)) - AC_MSG_RESULT($ac_cv_cc_ansi_prototypes) - if test $ac_cv_cc_ansi_prototypes = no ; then - case "$target_os" in - - hpux*) - AC_MSG_CHECKING(for HP-UX ansi compiler ($CC -Aa -D_HPUX_SOURCE)) - savedcflags="$CFLAGS" - CFLAGS="-Aa -D_HPUX_SOURCE $CFLAGS" - AC_CACHE_VAL(ac_cv_cc_hpux_cc_aa, - AC_TRY_COMPILE( - [#include <sys/types.h>], - [int frob(int, char *)], - ac_cv_cc_hpux_cc_aa=yes, - ac_cv_cc_hpux_cc_aa=no)) - AC_MSG_RESULT($ac_cv_cc_hpux_cc_aa) - if test $ac_cv_cc_hpux_cc_aa = no ; then - AC_MSG_ERROR(see the INSTALL for more info) - fi - CFLAGS="$savedcflags" - V_CCOPT="-Aa $V_CCOPT" - AC_DEFINE(_HPUX_SOURCE) - ;; - - *) - AC_MSG_ERROR(see the INSTALL for more info) - ;; - esac - fi - $2=-I/usr/local/include - - case "$target_os" in - - irix*) - V_CCOPT="$V_CCOPT -xansi -signed -g3" - ;; - - osf*) - V_CCOPT="$V_CCOPT -g3" - ;; - - ultrix*) - AC_MSG_CHECKING(that Ultrix $CC hacks const in prototypes) - AC_CACHE_VAL(ac_cv_cc_const_proto, - AC_TRY_COMPILE( - [#include <sys/types.h>], - [struct a { int b; }; - void c(const struct a *)], - ac_cv_cc_const_proto=yes, - ac_cv_cc_const_proto=no)) - AC_MSG_RESULT($ac_cv_cc_const_proto) - if test $ac_cv_cc_const_proto = no ; then - AC_DEFINE(const,) - fi - ;; - esac - fi -]) - -dnl -dnl Use pfopen.c if available and pfopen() not in standard libraries -dnl Require libpcap -dnl Look for libpcap in .. -dnl Use the installed libpcap if there is no local version -dnl -dnl usage: -dnl -dnl AC_LBL_LIBPCAP(pcapdep, incls) -dnl -dnl results: -dnl -dnl $1 (pcapdep set) -dnl $2 (incls appended) -dnl LIBS -dnl -AC_DEFUN(AC_LBL_LIBPCAP, - [pfopen=/usr/examples/packetfilter/pfopen.c - if test -f $pfopen ; then - AC_CHECK_FUNCS(pfopen) - if test $ac_cv_func_pfopen = "no" ; then - AC_MSG_RESULT(Using $pfopen) - LIBS="$LIBS $pfopen" - fi - fi - AC_MSG_CHECKING(for local pcap library) - libpcap=FAIL - lastdir=FAIL - places=`ls .. | sed -e 's,/$,,' -e 's,^,../,' | \ - egrep '/libpcap-[[0-9]]*\.[[0-9]]*(\.[[0-9]]*)?([[ab]][[0-9]]*)?$'` - for dir in $places ../libpcap libpcap ; do - basedir=`echo $dir | sed -e 's/[[ab]][[0-9]]*$//'` - if test $lastdir = $basedir ; then - dnl skip alphas when an actual release is present - continue; - fi - lastdir=$dir - if test -r $dir/pcap.c ; then - libpcap=$dir/libpcap.a - d=$dir - dnl continue and select the last one that exists - fi - done - if test $libpcap = FAIL ; then - AC_MSG_RESULT(not found) - AC_CHECK_LIB(pcap, main, libpcap="-lpcap") - if test $libpcap = FAIL ; then - AC_MSG_ERROR(see the INSTALL doc for more info) - fi - else - $1=$libpcap - $2="-I$d $$2" - AC_MSG_RESULT($libpcap) - fi - LIBS="$libpcap $LIBS"]) - -dnl -dnl Define RETSIGTYPE and RETSIGVAL -dnl -dnl usage: -dnl -dnl AC_LBL_TYPE_SIGNAL -dnl -dnl results: -dnl -dnl RETSIGTYPE (defined) -dnl RETSIGVAL (defined) -dnl -AC_DEFUN(AC_LBL_TYPE_SIGNAL, - [AC_TYPE_SIGNAL - if test "$ac_cv_type_signal" = void ; then - AC_DEFINE(RETSIGVAL,) - else - AC_DEFINE(RETSIGVAL,(0)) - fi - case "$target_os" in - - irix*) - AC_DEFINE(_BSD_SIGNALS) - ;; - - *) - AC_CHECK_FUNCS(sigset) - if test $ac_cv_func_sigset = yes ; then - AC_DEFINE(signal, sigset) - fi - ;; - esac]) - -dnl -dnl If using gcc, see if fixincludes should be run -dnl -dnl usage: -dnl -dnl AC_LBL_FIXINCLUDES -dnl -AC_DEFUN(AC_LBL_FIXINCLUDES, - [if test $ac_cv_prog_gcc = yes ; then - AC_MSG_CHECKING(if fixincludes is needed) - AC_CACHE_VAL(ac_cv_gcc_fixincludes, - AC_TRY_COMPILE( - [/* - * This generates a "duplicate case value" when fixincludes - * has not be run. - */ -# include <sys/types.h> -# include <sys/time.h> -# include <sys/ioctl.h> -# ifdef HAVE_SYS_IOCCOM_H -# include <sys/ioccom.h> -# endif], - [switch (0) { - case _IO('A', 1):; - case _IO('B', 1):; - }], - ac_cv_gcc_fixincludes=yes, - ac_cv_gcc_fixincludes=no)) - AC_MSG_RESULT($ac_cv_gcc_fixincludes) - if test $ac_cv_gcc_fixincludes = no ; then - # Don't cache failure - unset ac_cv_gcc_fixincludes - AC_MSG_ERROR(see the INSTALL for more info) - fi - fi]) - -dnl -dnl Check for flex, default to lex -dnl Require flex 2.4 or higher -dnl Check for bison, default to yacc -dnl Default to lex/yacc if both flex and bison are not available -dnl Define the yy prefix string if using flex and bison -dnl -dnl usage: -dnl -dnl AC_LBL_LEX_AND_YACC(lex, yacc, yyprefix) -dnl -dnl results: -dnl -dnl $1 (lex set) -dnl $2 (yacc appended) -dnl $3 (optional flex and bison -P prefix) -dnl -AC_DEFUN(AC_LBL_LEX_AND_YACC, - [AC_CHECK_PROGS($1, flex, lex) - if test "$$1" = flex ; then - # The -V flag was added in 2.4 - AC_MSG_CHECKING(for flex 2.4 or higher) - AC_CACHE_VAL(ac_cv_flex_v24, - if flex -V >/dev/null 2>&1; then - ac_cv_flex_v24=yes - else - ac_cv_flex_v24=no - fi) - AC_MSG_RESULT($ac_cv_flex_v24) - if test $ac_cv_flex_v24 = no ; then - s="2.4 or higher required" - AC_MSG_WARN(ignoring obsolete flex executable ($s)) - $1=lex - fi - fi - AC_CHECK_PROGS($2, bison, yacc) - if test "$$2" = bison ; then - $2="$$2 -y" - fi - if test "$$1" != lex -a "$$2" = yacc -o "$$1" = lex -a "$$2" != yacc ; then - AC_MSG_WARN(don't have both flex and bison; reverting to lex/yacc) - $1=lex - $2=yacc - fi - if test "$$1" = flex -a -n "$3" ; then - $1="$$1 -P$3" - $2="$$2 -p $3" - fi]) - -dnl -dnl Checks to see if union wait is used with WEXITSTATUS() -dnl -dnl usage: -dnl -dnl AC_LBL_UNION_WAIT -dnl -dnl results: -dnl -dnl DECLWAITSTATUS (defined) -dnl -AC_DEFUN(AC_LBL_UNION_WAIT, - [AC_MSG_CHECKING(if union wait is used) - AC_CACHE_VAL(ac_cv_union_wait, - AC_TRY_COMPILE([ -# include <sys/types.h> -# include <sys/wait.h>], - [int status; - u_int i = WEXITSTATUS(status); - u_int j = waitpid(0, &status, 0);], - ac_cv_union_wait=no, - ac_cv_union_wait=yes)) - AC_MSG_RESULT($ac_cv_union_wait) - if test $ac_cv_union_wait = yes ; then - AC_DEFINE(DECLWAITSTATUS,union wait) - else - AC_DEFINE(DECLWAITSTATUS,int) - fi]) - -dnl -dnl Checks to see if the sockaddr struct has the 4.4 BSD sa_len member -dnl -dnl usage: -dnl -dnl AC_LBL_SOCKADDR_SA_LEN -dnl -dnl results: -dnl -dnl HAVE_SOCKADDR_SA_LEN (defined) -dnl -AC_DEFUN(AC_LBL_SOCKADDR_SA_LEN, - [AC_MSG_CHECKING(if sockaddr struct has sa_len member) - AC_CACHE_VAL(ac_cv_sockaddr_has_sa_len, - AC_TRY_COMPILE([ -# include <sys/types.h> -# include <sys/socket.h>], - [u_int i = sizeof(((struct sockaddr *)0)->sa_len)], - ac_cv_sockaddr_has_sa_len=yes, - ac_cv_sockaddr_has_sa_len=no)) - AC_MSG_RESULT($ac_cv_sockaddr_has_sa_len) - if test $ac_cv_sockaddr_has_sa_len = yes ; then - AC_DEFINE(HAVE_SOCKADDR_SA_LEN) - fi]) - -dnl -dnl Checks to see if -R is used -dnl -dnl usage: -dnl -dnl AC_LBL_HAVE_RUN_PATH -dnl -dnl results: -dnl -dnl ac_cv_have_run_path (yes or no) -dnl -AC_DEFUN(AC_LBL_HAVE_RUN_PATH, - [AC_MSG_CHECKING(for ${CC-cc} -R) - AC_CACHE_VAL(ac_cv_have_run_path, - [echo 'main(){}' > conftest.c - ${CC-cc} -o conftest conftest.c -R/a1/b2/c3 >conftest.out 2>&1 - if test ! -s conftest.out ; then - ac_cv_have_run_path=yes - else - ac_cv_have_run_path=no - fi - rm -f conftest*]) - AC_MSG_RESULT($ac_cv_have_run_path) - ]) - -dnl -dnl Checks to see if unaligned memory accesses fail -dnl -dnl usage: -dnl -dnl AC_LBL_UNALIGNED_ACCESS -dnl -dnl results: -dnl -dnl LBL_ALIGN (DEFINED) -dnl -AC_DEFUN(AC_LBL_UNALIGNED_ACCESS, - [AC_MSG_CHECKING(if unaligned accesses fail) - AC_CACHE_VAL(ac_cv_unaligned_fail, - [case "$target_cpu" in - - alpha|hp*|mips|sparc) - ac_cv_unaligned_fail=yes - ;; - - *) - cat >conftest.c <<EOF -# include <sys/types.h> -# include <sys/wait.h> -# include <stdio.h> - unsigned char a[[5]] = { 1, 2, 3, 4, 5 }; - main() { - unsigned int i; - pid_t pid; - int status; - /* avoid "core dumped" message */ - pid = fork(); - if (pid < 0) - exit(2); - if (pid > 0) { - /* parent */ - pid = waitpid(pid, &status, 0); - if (pid < 0) - exit(3); - exit(!WIFEXITED(status)); - } - /* child */ - i = *(unsigned int *)&a[[1]]; - printf("%d\n", i); - exit(0); - } -EOF - ${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS \ - conftest.c $LIBS >/dev/null 2>&1 - if test ! -x conftest ; then - dnl failed to compile for some reason - ac_cv_unaligned_fail=yes - else - ./conftest >conftest.out - if test ! -s conftest.out ; then - ac_cv_unaligned_fail=yes - else - ac_cv_unaligned_fail=no - fi - fi - rm -f conftest* core core.conftest - ;; - esac]) - AC_MSG_RESULT($ac_cv_unaligned_fail) - if test $ac_cv_unaligned_fail = yes ; then - AC_DEFINE(LBL_ALIGN) - fi]) - -dnl -dnl If using gcc and the file .devel exists: -dnl Compile with -g (if supported) and -Wall -dnl If using gcc 2, do extra prototype checking -dnl If an os prototype include exists, symlink os-proto.h to it -dnl -dnl usage: -dnl -dnl AC_LBL_DEVEL(copt) -dnl -dnl results: -dnl -dnl $1 (copt appended) -dnl HAVE_OS_PROTO_H (defined) -dnl os-proto.h (symlinked) -dnl -AC_DEFUN(AC_LBL_DEVEL, - [rm -f os-proto.h - if test "${LBL_CFLAGS+set}" = set; then - $1="$$1 ${LBL_CFLAGS}" - fi - if test $ac_cv_prog_gcc = yes -a -f .devel ; then - if test "${LBL_CFLAGS+set}" != set; then - if test "$ac_cv_prog_cc_g" = yes ; then - $1="-g $$1" - fi - $1="$$1 -Wall" - if test $ac_cv_gcc_vers -gt 1 ; then - $1="$$1 -Wmissing-prototypes -Wstrict-prototypes" - fi - fi - os=`echo $target_os | sed -e 's/\([[0-9]][[0-9]]*\)[[^0-9]].*$/\1/'` - name="lbl/os-$os.h" - if test -f $name ; then - ln -s $name os-proto.h - AC_DEFINE(HAVE_OS_PROTO_H) - else - AC_MSG_WARN(can't find $name) - fi - fi]) diff --git a/contrib/libpcap/arcnet.h b/contrib/libpcap/arcnet.h deleted file mode 100644 index dce7335..0000000 --- a/contrib/libpcap/arcnet.h +++ /dev/null @@ -1,52 +0,0 @@ -/* - * Copyright (c) 1982, 1986, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#) $Id: arcnet.h,v 1.2 2001/04/24 02:17:52 guy Exp $ (LBL) - * - * from: NetBSD: if_arc.h,v 1.13 1999/11/19 20:41:19 thorpej Exp - */ - -/* RFC 1051 */ -#define ARCTYPE_IP_OLD 240 /* IP protocol */ -#define ARCTYPE_ARP_OLD 241 /* address resolution protocol */ - -/* RFC 1201 */ -#define ARCTYPE_IP 212 /* IP protocol */ -#define ARCTYPE_ARP 213 /* address resolution protocol */ -#define ARCTYPE_REVARP 214 /* reverse addr resolution protocol */ - -#define ARCTYPE_ATALK 221 /* Appletalk */ -#define ARCTYPE_BANIAN 247 /* Banyan Vines */ -#define ARCTYPE_IPX 250 /* Novell IPX */ - -#define ARCTYPE_INET6 0xc4 /* IPng */ -#define ARCTYPE_DIAGNOSE 0x80 /* as per ANSI/ATA 878.1 */ diff --git a/contrib/libpcap/atmuni31.h b/contrib/libpcap/atmuni31.h deleted file mode 100644 index 877ed68..0000000 --- a/contrib/libpcap/atmuni31.h +++ /dev/null @@ -1,87 +0,0 @@ -/* - * Copyright (c) 1997 Yen Yen Lim and North Dakota State University - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Yen Yen Lim and - North Dakota State University - * 4. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - * @(#) $Header: /tcpdump/master/libpcap/atmuni31.h,v 1.1 2002/07/11 09:06:32 guy Exp $ (LBL) - */ - -/* Based on UNI3.1 standard by ATM Forum */ - -/* ATM traffic types based on VPI=0 and (the following VCI */ -#define PPC 0x05 /* Point-to-point signal msg */ -#define BCC 0x02 /* Broadcast signal msg */ -#define OAMF4SC 0x03 /* Segment OAM F4 flow cell */ -#define OAMF4EC 0x04 /* End-to-end OAM F4 flow cell */ -#define METAC 0x01 /* Meta signal msg */ -#define ILMIC 0x10 /* ILMI msg */ - -/* Q.2931 signalling messages */ -#define CALL_PROCEED 0x02 /* call proceeding */ -#define CONNECT 0x07 /* connect */ -#define CONNECT_ACK 0x0f /* connect_ack */ -#define SETUP 0x05 /* setup */ -#define RELEASE 0x4d /* release */ -#define RELEASE_DONE 0x5a /* release_done */ -#define RESTART 0x46 /* restart */ -#define RESTART_ACK 0x4e /* restart ack */ -#define STATUS 0x7d /* status */ -#define STATUS_ENQ 0x75 /* status ack */ -#define ADD_PARTY 0x80 /* add party */ -#define ADD_PARTY_ACK 0x81 /* add party ack */ -#define ADD_PARTY_REJ 0x82 /* add party rej */ -#define DROP_PARTY 0x83 /* drop party */ -#define DROP_PARTY_ACK 0x84 /* drop party ack */ - -/* Information Element Parameters in the signalling messages */ -#define CAUSE 0x08 /* cause */ -#define ENDPT_REF 0x54 /* endpoint reference */ -#define AAL_PARA 0x58 /* ATM adaptation layer parameters */ -#define TRAFF_DESCRIP 0x59 /* atm traffic descriptors */ -#define CONNECT_ID 0x5a /* connection identifier */ -#define QOS_PARA 0x5c /* quality of service parameters */ -#define B_HIGHER 0x5d /* broadband higher layer information */ -#define B_BEARER 0x5e /* broadband bearer capability */ -#define B_LOWER 0x5f /* broadband lower information */ -#define CALLING_PARTY 0x6c /* calling party number */ -#define CALLED_PARTY 0x70 /* called party nmber */ - -#define Q2931 0x09 - -/* Q.2931 signalling general messages format */ -#define PROTO_POS 0 /* offset of protocol discriminator */ -#define CALL_REF_POS 2 /* offset of call reference value */ -#define MSG_TYPE_POS 5 /* offset of message type */ -#define MSG_LEN_POS 7 /* offset of mesage length */ -#define IE_BEGIN_POS 9 /* offset of first information element */ - -/* format of signalling messages */ -#define TYPE_POS 0 -#define LEN_POS 2 -#define FIELD_BEGIN_POS 4 diff --git a/contrib/libpcap/bpf/net/bpf.h b/contrib/libpcap/bpf/net/bpf.h deleted file mode 100644 index 8c73f3a..0000000 --- a/contrib/libpcap/bpf/net/bpf.h +++ /dev/null @@ -1,419 +0,0 @@ -/*- - * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from the Stanford/CMU enet packet filter, - * (net/enet.c) distributed as part of 4.3BSD, and code contributed - * to Berkeley by Steven McCanne and Van Jacobson both of Lawrence - * Berkeley Laboratory. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)bpf.h 7.1 (Berkeley) 5/7/91 - * - * @(#) $Header: /tcpdump/master/libpcap/bpf/net/bpf.h,v 1.51 2001/11/28 05:50:05 guy Exp $ (LBL) - */ - -#ifndef BPF_MAJOR_VERSION - -/* BSD style release date */ -#define BPF_RELEASE 199606 - -typedef int bpf_int32; -typedef u_int bpf_u_int32; - -/* - * Alignment macros. BPF_WORDALIGN rounds up to the next - * even multiple of BPF_ALIGNMENT. - */ -#ifndef __NetBSD__ -#define BPF_ALIGNMENT sizeof(bpf_int32) -#else -#define BPF_ALIGNMENT sizeof(long) -#endif -#define BPF_WORDALIGN(x) (((x)+(BPF_ALIGNMENT-1))&~(BPF_ALIGNMENT-1)) - -#define BPF_MAXINSNS 512 -#define BPF_MAXBUFSIZE 0x8000 -#define BPF_MINBUFSIZE 32 - -/* - * Structure for BIOCSETF. - */ -struct bpf_program { - u_int bf_len; - struct bpf_insn *bf_insns; -}; - -/* - * Struct returned by BIOCGSTATS. - */ -struct bpf_stat { - u_int bs_recv; /* number of packets received */ - u_int bs_drop; /* number of packets dropped */ -}; - -/* - * Struct return by BIOCVERSION. This represents the version number of - * the filter language described by the instruction encodings below. - * bpf understands a program iff kernel_major == filter_major && - * kernel_minor >= filter_minor, that is, if the value returned by the - * running kernel has the same major number and a minor number equal - * equal to or less than the filter being downloaded. Otherwise, the - * results are undefined, meaning an error may be returned or packets - * may be accepted haphazardly. - * It has nothing to do with the source code version. - */ -struct bpf_version { - u_short bv_major; - u_short bv_minor; -}; -/* Current version number of filter architecture. */ -#define BPF_MAJOR_VERSION 1 -#define BPF_MINOR_VERSION 1 - -/* - * BPF ioctls - * - * The first set is for compatibility with Sun's pcc style - * header files. If your using gcc, we assume that you - * have run fixincludes so the latter set should work. - */ -#if (defined(sun) || defined(ibm032)) && !defined(__GNUC__) -#define BIOCGBLEN _IOR(B,102, u_int) -#define BIOCSBLEN _IOWR(B,102, u_int) -#define BIOCSETF _IOW(B,103, struct bpf_program) -#define BIOCFLUSH _IO(B,104) -#define BIOCPROMISC _IO(B,105) -#define BIOCGDLT _IOR(B,106, u_int) -#define BIOCGETIF _IOR(B,107, struct ifreq) -#define BIOCSETIF _IOW(B,108, struct ifreq) -#define BIOCSRTIMEOUT _IOW(B,109, struct timeval) -#define BIOCGRTIMEOUT _IOR(B,110, struct timeval) -#define BIOCGSTATS _IOR(B,111, struct bpf_stat) -#define BIOCIMMEDIATE _IOW(B,112, u_int) -#define BIOCVERSION _IOR(B,113, struct bpf_version) -#define BIOCSTCPF _IOW(B,114, struct bpf_program) -#define BIOCSUDPF _IOW(B,115, struct bpf_program) -#else -#define BIOCGBLEN _IOR('B',102, u_int) -#define BIOCSBLEN _IOWR('B',102, u_int) -#define BIOCSETF _IOW('B',103, struct bpf_program) -#define BIOCFLUSH _IO('B',104) -#define BIOCPROMISC _IO('B',105) -#define BIOCGDLT _IOR('B',106, u_int) -#define BIOCGETIF _IOR('B',107, struct ifreq) -#define BIOCSETIF _IOW('B',108, struct ifreq) -#define BIOCSRTIMEOUT _IOW('B',109, struct timeval) -#define BIOCGRTIMEOUT _IOR('B',110, struct timeval) -#define BIOCGSTATS _IOR('B',111, struct bpf_stat) -#define BIOCIMMEDIATE _IOW('B',112, u_int) -#define BIOCVERSION _IOR('B',113, struct bpf_version) -#define BIOCSTCPF _IOW('B',114, struct bpf_program) -#define BIOCSUDPF _IOW('B',115, struct bpf_program) -#endif - -/* - * Structure prepended to each packet. - */ -struct bpf_hdr { - struct timeval bh_tstamp; /* time stamp */ - bpf_u_int32 bh_caplen; /* length of captured portion */ - bpf_u_int32 bh_datalen; /* original length of packet */ - u_short bh_hdrlen; /* length of bpf header (this struct - plus alignment padding) */ -}; -/* - * Because the structure above is not a multiple of 4 bytes, some compilers - * will insist on inserting padding; hence, sizeof(struct bpf_hdr) won't work. - * Only the kernel needs to know about it; applications use bh_hdrlen. - */ -#if defined(KERNEL) || defined(_KERNEL) -#define SIZEOF_BPF_HDR 18 -#endif - -/* - * Data-link level type codes. - */ - -/* - * These are the types that are the same on all platforms; on other - * platforms, a <net/bpf.h> should be supplied that defines the additional - * DLT_* codes appropriately for that platform (the BSDs, for example, - * should not just pick up this version of "bpf.h"; they should also define - * the additional DLT_* codes used by their kernels, as well as the values - * defined here - and, if the values they use for particular DLT_ types - * differ from those here, they should use their values, not the ones - * here). - */ -#define DLT_NULL 0 /* no link-layer encapsulation */ -#define DLT_EN10MB 1 /* Ethernet (10Mb) */ -#define DLT_EN3MB 2 /* Experimental Ethernet (3Mb) */ -#define DLT_AX25 3 /* Amateur Radio AX.25 */ -#define DLT_PRONET 4 /* Proteon ProNET Token Ring */ -#define DLT_CHAOS 5 /* Chaos */ -#define DLT_IEEE802 6 /* IEEE 802 Networks */ -#define DLT_ARCNET 7 /* ARCNET */ -#define DLT_SLIP 8 /* Serial Line IP */ -#define DLT_PPP 9 /* Point-to-point Protocol */ -#define DLT_FDDI 10 /* FDDI */ - -/* - * These are values from the traditional libpcap "bpf.h". - * Ports of this to particular platforms should replace these definitions - * with the ones appropriate to that platform, if the values are - * different on that platform. - */ -#define DLT_ATM_RFC1483 11 /* LLC/SNAP encapsulated atm */ -#define DLT_RAW 12 /* raw IP */ - -/* - * These are values from BSD/OS's "bpf.h". - * These are not the same as the values from the traditional libpcap - * "bpf.h"; however, these values shouldn't be generated by any - * OS other than BSD/OS, so the correct values to use here are the - * BSD/OS values. - * - * Platforms that have already assigned these values to other - * DLT_ codes, however, should give these codes the values - * from that platform, so that programs that use these codes will - * continue to compile - even though they won't correctly read - * files of these types. - */ -#define DLT_SLIP_BSDOS 15 /* BSD/OS Serial Line IP */ -#define DLT_PPP_BSDOS 16 /* BSD/OS Point-to-point Protocol */ - -#define DLT_ATM_CLIP 19 /* Linux Classical-IP over ATM */ - -/* - * These values are defined by NetBSD; other platforms should refrain from - * using them for other purposes, so that NetBSD savefiles with link - * types of 50 or 51 can be read as this type on all platforms. - */ -#define DLT_PPP_SERIAL 50 /* PPP over serial with HDLC encapsulation */ -#define DLT_PPP_ETHER 51 /* PPP over Ethernet */ - -/* - * Values between 100 and 103 are used in capture file headers as - * link-layer types corresponding to DLT_ types that differ - * between platforms; don't use those values for new DLT_ new types. - */ - -/* - * This value was defined by libpcap 0.5; platforms that have defined - * it with a different value should define it here with that value - - * a link type of 104 in a save file will be mapped to DLT_C_HDLC, - * whatever value that happens to be, so programs will correctly - * handle files with that link type regardless of the value of - * DLT_C_HDLC. - * - * The name DLT_C_HDLC was used by BSD/OS; we use that name for source - * compatibility with programs written for BSD/OS. - * - * libpcap 0.5 defined it as DLT_CHDLC; we define DLT_CHDLC as well, - * for source compatibility with programs written for libpcap 0.5. - */ -#define DLT_C_HDLC 104 /* Cisco HDLC */ -#define DLT_CHDLC DLT_C_HDLC - -#define DLT_IEEE802_11 105 /* IEEE 802.11 wireless */ - -/* - * Values between 106 and 107 are used in capture file headers as - * link-layer types corresponding to DLT_ types that might differ - * between platforms; don't use those values for new DLT_ new types. - */ - -/* - * OpenBSD DLT_LOOP, for loopback devices; it's like DLT_NULL, except - * that the AF_ type in the link-layer header is in network byte order. - * - * OpenBSD defines it as 12, but that collides with DLT_RAW, so we - * define it as 108 here. If OpenBSD picks up this file, it should - * define DLT_LOOP as 12 in its version, as per the comment above - - * and should not use 108 as a DLT_ value. - */ -#define DLT_LOOP 108 - -/* - * Values between 109 and 112 are used in capture file headers as - * link-layer types corresponding to DLT_ types that might differ - * between platforms; don't use those values for new DLT_ types - * other than the corresponding DLT_ types. - */ - -/* - * This is for Linux cooked sockets. - */ -#define DLT_LINUX_SLL 113 - -/* - * Apple LocalTalk hardware. - */ -#define DLT_LTALK 114 - -/* - * Acorn Econet. - */ -#define DLT_ECONET 115 - -/* - * Reserved for use with OpenBSD ipfilter. - */ -#define DLT_IPFILTER 116 - -/* - * Reserved for use in capture-file headers as a link-layer type - * corresponding to OpenBSD DLT_PFLOG; DLT_PFLOG is 17 in OpenBSD, - * but that's DLT_LANE8023 in SuSE 6.3, so we can't use 17 for it - * in capture-file headers. - */ -#define DLT_PFLOG 117 - -/* - * Registered for Cisco-internal use. - */ -#define DLT_CISCO_IOS 118 - -/* - * Reserved for 802.11 cards using the Prism II chips, with a link-layer - * header including Prism monitor mode information plus an 802.11 - * header. - */ -#define DLT_PRISM_HEADER 119 - -/* - * Reserved for Aironet 802.11 cards, with an Aironet link-layer header - * (see Doug Ambrisko's FreeBSD patches). - */ -#define DLT_AIRONET_HEADER 120 - -/* - * The instruction encodings. - */ -/* instruction classes */ -#define BPF_CLASS(code) ((code) & 0x07) -#define BPF_LD 0x00 -#define BPF_LDX 0x01 -#define BPF_ST 0x02 -#define BPF_STX 0x03 -#define BPF_ALU 0x04 -#define BPF_JMP 0x05 -#define BPF_RET 0x06 -#define BPF_MISC 0x07 - -/* ld/ldx fields */ -#define BPF_SIZE(code) ((code) & 0x18) -#define BPF_W 0x00 -#define BPF_H 0x08 -#define BPF_B 0x10 -#define BPF_MODE(code) ((code) & 0xe0) -#define BPF_IMM 0x00 -#define BPF_ABS 0x20 -#define BPF_IND 0x40 -#define BPF_MEM 0x60 -#define BPF_LEN 0x80 -#define BPF_MSH 0xa0 - -/* alu/jmp fields */ -#define BPF_OP(code) ((code) & 0xf0) -#define BPF_ADD 0x00 -#define BPF_SUB 0x10 -#define BPF_MUL 0x20 -#define BPF_DIV 0x30 -#define BPF_OR 0x40 -#define BPF_AND 0x50 -#define BPF_LSH 0x60 -#define BPF_RSH 0x70 -#define BPF_NEG 0x80 -#define BPF_JA 0x00 -#define BPF_JEQ 0x10 -#define BPF_JGT 0x20 -#define BPF_JGE 0x30 -#define BPF_JSET 0x40 -#define BPF_SRC(code) ((code) & 0x08) -#define BPF_K 0x00 -#define BPF_X 0x08 - -/* ret - BPF_K and BPF_X also apply */ -#define BPF_RVAL(code) ((code) & 0x18) -#define BPF_A 0x10 - -/* misc */ -#define BPF_MISCOP(code) ((code) & 0xf8) -#define BPF_TAX 0x00 -#define BPF_TXA 0x80 - -/* - * The instruction data structure. - */ -struct bpf_insn { - u_short code; - u_char jt; - u_char jf; - bpf_int32 k; -}; - -/* - * Macros for insn array initializers. - */ -#define BPF_STMT(code, k) { (u_short)(code), 0, 0, k } -#define BPF_JUMP(code, k, jt, jf) { (u_short)(code), jt, jf, k } - -#if defined(BSD) && (defined(KERNEL) || defined(_KERNEL)) -/* - * Systems based on non-BSD kernels don't have ifnet's (or they don't mean - * anything if it is in <net/if.h>) and won't work like this. - */ -# if __STDC__ -extern void bpf_tap(struct ifnet *, u_char *, u_int); -extern void bpf_mtap(struct ifnet *, struct mbuf *); -extern void bpfattach(struct ifnet *, u_int, u_int); -extern void bpfilterattach(int); -# else -extern void bpf_tap(); -extern void bpf_mtap(); -extern void bpfattach(); -extern void bpfilterattach(); -# endif /* __STDC__ */ -#endif /* BSD && (_KERNEL || KERNEL) */ -#if __STDC__ -extern int bpf_validate(struct bpf_insn *, int); -extern u_int bpf_filter(struct bpf_insn *, u_char *, u_int, u_int); -#else -extern int bpf_validate(); -extern u_int bpf_filter(); -#endif - -/* - * Number of scratch memory words (for BPF_LD|BPF_MEM and BPF_ST). - */ -#define BPF_MEMWORDS 16 - -#endif diff --git a/contrib/libpcap/bpf/net/bpf_filter.c b/contrib/libpcap/bpf/net/bpf_filter.c deleted file mode 100644 index 40df32a..0000000 --- a/contrib/libpcap/bpf/net/bpf_filter.c +++ /dev/null @@ -1,565 +0,0 @@ -/*- - * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from the Stanford/CMU enet packet filter, - * (net/enet.c) distributed as part of 4.3BSD, and code contributed - * to Berkeley by Steven McCanne and Van Jacobson both of Lawrence - * Berkeley Laboratory. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)bpf.c 7.5 (Berkeley) 7/15/91 - */ - -#if !(defined(lint) || defined(KERNEL) || defined(_KERNEL)) -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/bpf/net/bpf_filter.c,v 1.44 2003/11/15 23:24:07 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#ifdef WIN32 - -#include <pcap-stdinc.h> - -#else /* WIN32 */ - -#include <sys/param.h> -#include <sys/types.h> -#include <sys/time.h> - -#define SOLARIS (defined(sun) && (defined(__SVR4) || defined(__svr4__))) -#if defined(__hpux) || SOLARIS -# include <sys/sysmacros.h> -# include <sys/stream.h> -# define mbuf msgb -# define m_next b_cont -# define MLEN(m) ((m)->b_wptr - (m)->b_rptr) -# define mtod(m,t) ((t)(m)->b_rptr) -#else -# define MLEN(m) ((m)->m_len) -#endif - -#endif /* WIN32 */ - -#include <pcap-bpf.h> - -#if !defined(KERNEL) && !defined(_KERNEL) -#include <stdlib.h> -#endif - -#define int32 bpf_int32 -#define u_int32 bpf_u_int32 - -#ifndef LBL_ALIGN -/* - * XXX - IA-64? If not, this probably won't work on Win64 IA-64 - * systems, unless LBL_ALIGN is defined elsewhere for them. - * XXX - SuperH? If not, this probably won't work on WinCE SuperH - * systems, unless LBL_ALIGN is defined elsewhere for them. - */ -#if defined(sparc) || defined(__sparc__) || defined(mips) || \ - defined(ibm032) || defined(__alpha) || defined(__hpux) || \ - defined(__arm__) -#define LBL_ALIGN -#endif -#endif - -#ifndef LBL_ALIGN -#ifndef WIN32 -#include <netinet/in.h> -#endif - -#define EXTRACT_SHORT(p) ((u_short)ntohs(*(u_short *)p)) -#define EXTRACT_LONG(p) (ntohl(*(u_int32 *)p)) -#else -#define EXTRACT_SHORT(p)\ - ((u_short)\ - ((u_short)*((u_char *)p+0)<<8|\ - (u_short)*((u_char *)p+1)<<0)) -#define EXTRACT_LONG(p)\ - ((u_int32)*((u_char *)p+0)<<24|\ - (u_int32)*((u_char *)p+1)<<16|\ - (u_int32)*((u_char *)p+2)<<8|\ - (u_int32)*((u_char *)p+3)<<0) -#endif - -#if defined(KERNEL) || defined(_KERNEL) -# if !defined(__hpux) && !SOLARIS -#include <sys/mbuf.h> -# endif -#define MINDEX(len, _m, _k) \ -{ \ - len = MLEN(m); \ - while ((_k) >= len) { \ - (_k) -= len; \ - (_m) = (_m)->m_next; \ - if ((_m) == 0) \ - return 0; \ - len = MLEN(m); \ - } \ -} - -static int -m_xword(m, k, err) - register struct mbuf *m; - register int k, *err; -{ - register int len; - register u_char *cp, *np; - register struct mbuf *m0; - - MINDEX(len, m, k); - cp = mtod(m, u_char *) + k; - if (len - k >= 4) { - *err = 0; - return EXTRACT_LONG(cp); - } - m0 = m->m_next; - if (m0 == 0 || MLEN(m0) + len - k < 4) - goto bad; - *err = 0; - np = mtod(m0, u_char *); - switch (len - k) { - - case 1: - return (cp[0] << 24) | (np[0] << 16) | (np[1] << 8) | np[2]; - - case 2: - return (cp[0] << 24) | (cp[1] << 16) | (np[0] << 8) | np[1]; - - default: - return (cp[0] << 24) | (cp[1] << 16) | (cp[2] << 8) | np[0]; - } - bad: - *err = 1; - return 0; -} - -static int -m_xhalf(m, k, err) - register struct mbuf *m; - register int k, *err; -{ - register int len; - register u_char *cp; - register struct mbuf *m0; - - MINDEX(len, m, k); - cp = mtod(m, u_char *) + k; - if (len - k >= 2) { - *err = 0; - return EXTRACT_SHORT(cp); - } - m0 = m->m_next; - if (m0 == 0) - goto bad; - *err = 0; - return (cp[0] << 8) | mtod(m0, u_char *)[0]; - bad: - *err = 1; - return 0; -} -#endif - -/* - * Execute the filter program starting at pc on the packet p - * wirelen is the length of the original packet - * buflen is the amount of data present - * For the kernel, p is assumed to be a pointer to an mbuf if buflen is 0, - * in all other cases, p is a pointer to a buffer and buflen is its size. - */ -u_int -bpf_filter(pc, p, wirelen, buflen) - register struct bpf_insn *pc; - register u_char *p; - u_int wirelen; - register u_int buflen; -{ - register u_int32 A, X; - register int k; - int32 mem[BPF_MEMWORDS]; -#if defined(KERNEL) || defined(_KERNEL) - struct mbuf *m, *n; - int merr, len; - - if (buflen == 0) { - m = (struct mbuf *)p; - p = mtod(m, u_char *); - buflen = MLEN(m); - } else - m = NULL; -#endif - - if (pc == 0) - /* - * No filter means accept all. - */ - return (u_int)-1; - A = 0; - X = 0; - --pc; - while (1) { - ++pc; - switch (pc->code) { - - default: -#if defined(KERNEL) || defined(_KERNEL) - return 0; -#else - abort(); -#endif - case BPF_RET|BPF_K: - return (u_int)pc->k; - - case BPF_RET|BPF_A: - return (u_int)A; - - case BPF_LD|BPF_W|BPF_ABS: - k = pc->k; - if (k + sizeof(int32) > buflen) { -#if defined(KERNEL) || defined(_KERNEL) - if (m == NULL) - return 0; - A = m_xword(m, k, &merr); - if (merr != 0) - return 0; - continue; -#else - return 0; -#endif - } - A = EXTRACT_LONG(&p[k]); - continue; - - case BPF_LD|BPF_H|BPF_ABS: - k = pc->k; - if (k + sizeof(short) > buflen) { -#if defined(KERNEL) || defined(_KERNEL) - if (m == NULL) - return 0; - A = m_xhalf(m, k, &merr); - if (merr != 0) - return 0; - continue; -#else - return 0; -#endif - } - A = EXTRACT_SHORT(&p[k]); - continue; - - case BPF_LD|BPF_B|BPF_ABS: - k = pc->k; - if (k >= buflen) { -#if defined(KERNEL) || defined(_KERNEL) - if (m == NULL) - return 0; - n = m; - MINDEX(len, n, k); - A = mtod(n, u_char *)[k]; - continue; -#else - return 0; -#endif - } - A = p[k]; - continue; - - case BPF_LD|BPF_W|BPF_LEN: - A = wirelen; - continue; - - case BPF_LDX|BPF_W|BPF_LEN: - X = wirelen; - continue; - - case BPF_LD|BPF_W|BPF_IND: - k = X + pc->k; - if (k + sizeof(int32) > buflen) { -#if defined(KERNEL) || defined(_KERNEL) - if (m == NULL) - return 0; - A = m_xword(m, k, &merr); - if (merr != 0) - return 0; - continue; -#else - return 0; -#endif - } - A = EXTRACT_LONG(&p[k]); - continue; - - case BPF_LD|BPF_H|BPF_IND: - k = X + pc->k; - if (k + sizeof(short) > buflen) { -#if defined(KERNEL) || defined(_KERNEL) - if (m == NULL) - return 0; - A = m_xhalf(m, k, &merr); - if (merr != 0) - return 0; - continue; -#else - return 0; -#endif - } - A = EXTRACT_SHORT(&p[k]); - continue; - - case BPF_LD|BPF_B|BPF_IND: - k = X + pc->k; - if (k >= buflen) { -#if defined(KERNEL) || defined(_KERNEL) - if (m == NULL) - return 0; - n = m; - MINDEX(len, n, k); - A = mtod(n, u_char *)[k]; - continue; -#else - return 0; -#endif - } - A = p[k]; - continue; - - case BPF_LDX|BPF_MSH|BPF_B: - k = pc->k; - if (k >= buflen) { -#if defined(KERNEL) || defined(_KERNEL) - if (m == NULL) - return 0; - n = m; - MINDEX(len, n, k); - X = (mtod(n, char *)[k] & 0xf) << 2; - continue; -#else - return 0; -#endif - } - X = (p[pc->k] & 0xf) << 2; - continue; - - case BPF_LD|BPF_IMM: - A = pc->k; - continue; - - case BPF_LDX|BPF_IMM: - X = pc->k; - continue; - - case BPF_LD|BPF_MEM: - A = mem[pc->k]; - continue; - - case BPF_LDX|BPF_MEM: - X = mem[pc->k]; - continue; - - case BPF_ST: - mem[pc->k] = A; - continue; - - case BPF_STX: - mem[pc->k] = X; - continue; - - case BPF_JMP|BPF_JA: - pc += pc->k; - continue; - - case BPF_JMP|BPF_JGT|BPF_K: - pc += (A > pc->k) ? pc->jt : pc->jf; - continue; - - case BPF_JMP|BPF_JGE|BPF_K: - pc += (A >= pc->k) ? pc->jt : pc->jf; - continue; - - case BPF_JMP|BPF_JEQ|BPF_K: - pc += (A == pc->k) ? pc->jt : pc->jf; - continue; - - case BPF_JMP|BPF_JSET|BPF_K: - pc += (A & pc->k) ? pc->jt : pc->jf; - continue; - - case BPF_JMP|BPF_JGT|BPF_X: - pc += (A > X) ? pc->jt : pc->jf; - continue; - - case BPF_JMP|BPF_JGE|BPF_X: - pc += (A >= X) ? pc->jt : pc->jf; - continue; - - case BPF_JMP|BPF_JEQ|BPF_X: - pc += (A == X) ? pc->jt : pc->jf; - continue; - - case BPF_JMP|BPF_JSET|BPF_X: - pc += (A & X) ? pc->jt : pc->jf; - continue; - - case BPF_ALU|BPF_ADD|BPF_X: - A += X; - continue; - - case BPF_ALU|BPF_SUB|BPF_X: - A -= X; - continue; - - case BPF_ALU|BPF_MUL|BPF_X: - A *= X; - continue; - - case BPF_ALU|BPF_DIV|BPF_X: - if (X == 0) - return 0; - A /= X; - continue; - - case BPF_ALU|BPF_AND|BPF_X: - A &= X; - continue; - - case BPF_ALU|BPF_OR|BPF_X: - A |= X; - continue; - - case BPF_ALU|BPF_LSH|BPF_X: - A <<= X; - continue; - - case BPF_ALU|BPF_RSH|BPF_X: - A >>= X; - continue; - - case BPF_ALU|BPF_ADD|BPF_K: - A += pc->k; - continue; - - case BPF_ALU|BPF_SUB|BPF_K: - A -= pc->k; - continue; - - case BPF_ALU|BPF_MUL|BPF_K: - A *= pc->k; - continue; - - case BPF_ALU|BPF_DIV|BPF_K: - A /= pc->k; - continue; - - case BPF_ALU|BPF_AND|BPF_K: - A &= pc->k; - continue; - - case BPF_ALU|BPF_OR|BPF_K: - A |= pc->k; - continue; - - case BPF_ALU|BPF_LSH|BPF_K: - A <<= pc->k; - continue; - - case BPF_ALU|BPF_RSH|BPF_K: - A >>= pc->k; - continue; - - case BPF_ALU|BPF_NEG: - A = -A; - continue; - - case BPF_MISC|BPF_TAX: - X = A; - continue; - - case BPF_MISC|BPF_TXA: - A = X; - continue; - } - } -} - - -/* - * Return true if the 'fcode' is a valid filter program. - * The constraints are that each jump be forward and to a valid - * code. The code must terminate with either an accept or reject. - * 'valid' is an array for use by the routine (it must be at least - * 'len' bytes long). - * - * The kernel needs to be able to verify an application's filter code. - * Otherwise, a bogus program could easily crash the system. - */ -int -bpf_validate(f, len) - struct bpf_insn *f; - int len; -{ - register int i; - register struct bpf_insn *p; - - for (i = 0; i < len; ++i) { - /* - * Check that that jumps are forward, and within - * the code block. - */ - p = &f[i]; - if (BPF_CLASS(p->code) == BPF_JMP) { - register int from = i + 1; - - if (BPF_OP(p->code) == BPF_JA) { - if (from + p->k >= (unsigned)len) - return 0; - } - else if (from + p->jt >= len || from + p->jf >= len) - return 0; - } - /* - * Check that memory operations use valid addresses. - */ - if ((BPF_CLASS(p->code) == BPF_ST || - (BPF_CLASS(p->code) == BPF_LD && - (p->code & 0xe0) == BPF_MEM)) && - (p->k >= BPF_MEMWORDS || p->k < 0)) - return 0; - /* - * Check for constant division by 0. - */ - if (p->code == (BPF_ALU|BPF_DIV|BPF_K) && p->k == 0) - return 0; - } - return BPF_CLASS(f[len - 1].code) == BPF_RET; -} diff --git a/contrib/libpcap/bpf_dump.c b/contrib/libpcap/bpf_dump.c deleted file mode 100644 index 303602e..0000000 --- a/contrib/libpcap/bpf_dump.c +++ /dev/null @@ -1,62 +0,0 @@ -/* - * Copyright (c) 1992, 1993, 1994, 1995, 1996 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/bpf_dump.c,v 1.14 2003/11/15 23:23:57 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <pcap.h> -#include <stdio.h> - -void -bpf_dump(struct bpf_program *p, int option) -{ - struct bpf_insn *insn; - int i; - int n = p->bf_len; - - insn = p->bf_insns; - if (option > 2) { - printf("%d\n", n); - for (i = 0; i < n; ++insn, ++i) { - printf("%u %u %u %u\n", insn->code, - insn->jt, insn->jf, insn->k); - } - return ; - } - if (option > 1) { - for (i = 0; i < n; ++insn, ++i) - printf("{ 0x%x, %d, %d, 0x%08x },\n", - insn->code, insn->jt, insn->jf, insn->k); - return; - } - for (i = 0; i < n; ++insn, ++i) { -#ifdef BDEBUG - extern int bids[]; - printf(bids[i] > 0 ? "[%02d]" : " -- ", bids[i] - 1); -#endif - puts(bpf_image(insn, i)); - } -} diff --git a/contrib/libpcap/bpf_image.c b/contrib/libpcap/bpf_image.c deleted file mode 100644 index 2e76128..0000000 --- a/contrib/libpcap/bpf_image.c +++ /dev/null @@ -1,288 +0,0 @@ -/* - * Copyright (c) 1990, 1991, 1992, 1994, 1995, 1996 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/bpf_image.c,v 1.26.2.1 2007/06/11 09:52:04 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <stdio.h> -#include <string.h> - -#include "pcap-int.h" - -#ifdef HAVE_OS_PROTO_H -#include "os-proto.h" -#endif - -char * -bpf_image(p, n) - struct bpf_insn *p; - int n; -{ - int v; - const char *fmt, *op; - static char image[256]; - char operand[64]; - - v = p->k; - switch (p->code) { - - default: - op = "unimp"; - fmt = "0x%x"; - v = p->code; - break; - - case BPF_RET|BPF_K: - op = "ret"; - fmt = "#%d"; - break; - - case BPF_RET|BPF_A: - op = "ret"; - fmt = ""; - break; - - case BPF_LD|BPF_W|BPF_ABS: - op = "ld"; - fmt = "[%d]"; - break; - - case BPF_LD|BPF_H|BPF_ABS: - op = "ldh"; - fmt = "[%d]"; - break; - - case BPF_LD|BPF_B|BPF_ABS: - op = "ldb"; - fmt = "[%d]"; - break; - - case BPF_LD|BPF_W|BPF_LEN: - op = "ld"; - fmt = "#pktlen"; - break; - - case BPF_LD|BPF_W|BPF_IND: - op = "ld"; - fmt = "[x + %d]"; - break; - - case BPF_LD|BPF_H|BPF_IND: - op = "ldh"; - fmt = "[x + %d]"; - break; - - case BPF_LD|BPF_B|BPF_IND: - op = "ldb"; - fmt = "[x + %d]"; - break; - - case BPF_LD|BPF_IMM: - op = "ld"; - fmt = "#0x%x"; - break; - - case BPF_LDX|BPF_IMM: - op = "ldx"; - fmt = "#0x%x"; - break; - - case BPF_LDX|BPF_MSH|BPF_B: - op = "ldxb"; - fmt = "4*([%d]&0xf)"; - break; - - case BPF_LD|BPF_MEM: - op = "ld"; - fmt = "M[%d]"; - break; - - case BPF_LDX|BPF_MEM: - op = "ldx"; - fmt = "M[%d]"; - break; - - case BPF_ST: - op = "st"; - fmt = "M[%d]"; - break; - - case BPF_STX: - op = "stx"; - fmt = "M[%d]"; - break; - - case BPF_JMP|BPF_JA: - op = "ja"; - fmt = "%d"; - v = n + 1 + p->k; - break; - - case BPF_JMP|BPF_JGT|BPF_K: - op = "jgt"; - fmt = "#0x%x"; - break; - - case BPF_JMP|BPF_JGE|BPF_K: - op = "jge"; - fmt = "#0x%x"; - break; - - case BPF_JMP|BPF_JEQ|BPF_K: - op = "jeq"; - fmt = "#0x%x"; - break; - - case BPF_JMP|BPF_JSET|BPF_K: - op = "jset"; - fmt = "#0x%x"; - break; - - case BPF_JMP|BPF_JGT|BPF_X: - op = "jgt"; - fmt = "x"; - break; - - case BPF_JMP|BPF_JGE|BPF_X: - op = "jge"; - fmt = "x"; - break; - - case BPF_JMP|BPF_JEQ|BPF_X: - op = "jeq"; - fmt = "x"; - break; - - case BPF_JMP|BPF_JSET|BPF_X: - op = "jset"; - fmt = "x"; - break; - - case BPF_ALU|BPF_ADD|BPF_X: - op = "add"; - fmt = "x"; - break; - - case BPF_ALU|BPF_SUB|BPF_X: - op = "sub"; - fmt = "x"; - break; - - case BPF_ALU|BPF_MUL|BPF_X: - op = "mul"; - fmt = "x"; - break; - - case BPF_ALU|BPF_DIV|BPF_X: - op = "div"; - fmt = "x"; - break; - - case BPF_ALU|BPF_AND|BPF_X: - op = "and"; - fmt = "x"; - break; - - case BPF_ALU|BPF_OR|BPF_X: - op = "or"; - fmt = "x"; - break; - - case BPF_ALU|BPF_LSH|BPF_X: - op = "lsh"; - fmt = "x"; - break; - - case BPF_ALU|BPF_RSH|BPF_X: - op = "rsh"; - fmt = "x"; - break; - - case BPF_ALU|BPF_ADD|BPF_K: - op = "add"; - fmt = "#%d"; - break; - - case BPF_ALU|BPF_SUB|BPF_K: - op = "sub"; - fmt = "#%d"; - break; - - case BPF_ALU|BPF_MUL|BPF_K: - op = "mul"; - fmt = "#%d"; - break; - - case BPF_ALU|BPF_DIV|BPF_K: - op = "div"; - fmt = "#%d"; - break; - - case BPF_ALU|BPF_AND|BPF_K: - op = "and"; - fmt = "#0x%x"; - break; - - case BPF_ALU|BPF_OR|BPF_K: - op = "or"; - fmt = "#0x%x"; - break; - - case BPF_ALU|BPF_LSH|BPF_K: - op = "lsh"; - fmt = "#%d"; - break; - - case BPF_ALU|BPF_RSH|BPF_K: - op = "rsh"; - fmt = "#%d"; - break; - - case BPF_ALU|BPF_NEG: - op = "neg"; - fmt = ""; - break; - - case BPF_MISC|BPF_TAX: - op = "tax"; - fmt = ""; - break; - - case BPF_MISC|BPF_TXA: - op = "txa"; - fmt = ""; - break; - } - (void)snprintf(operand, sizeof operand, fmt, v); - (void)snprintf(image, sizeof image, - (BPF_CLASS(p->code) == BPF_JMP && - BPF_OP(p->code) != BPF_JA) ? - "(%03d) %-8s %-16s jt %d\tjf %d" - : "(%03d) %-8s %s", - n, op, operand, n + 1 + p->jt, n + 1 + p->jf); - return image; -} diff --git a/contrib/libpcap/config.guess b/contrib/libpcap/config.guess deleted file mode 100755 index 4c5bde8..0000000 --- a/contrib/libpcap/config.guess +++ /dev/null @@ -1,1429 +0,0 @@ -#! /bin/sh -# Attempt to guess a canonical system name. -# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, -# 2000, 2001, 2002, 2003 Free Software Foundation, Inc. - -timestamp='2003-10-16' - -# This file is free software; you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2 of the License, or -# (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -# General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -# -# As a special exception to the GNU General Public License, if you -# distribute this file as part of a program that contains a -# configuration script generated by Autoconf, you may include it under -# the same distribution terms that you use for the rest of that program. - -# Originally written by Per Bothner <per@bothner.com>. -# Please send patches to <config-patches@gnu.org>. Submit a context -# diff and a properly formatted ChangeLog entry. -# -# This script attempts to guess a canonical system name similar to -# config.sub. If it succeeds, it prints the system name on stdout, and -# exits with 0. Otherwise, it exits with 1. -# -# The plan is that this can be called by configure scripts if you -# don't specify an explicit build system type. - -me=`echo "$0" | sed -e 's,.*/,,'` - -usage="\ -Usage: $0 [OPTION] - -Output the configuration name of the system \`$me' is run on. - -Operation modes: - -h, --help print this help, then exit - -t, --time-stamp print date of last modification, then exit - -v, --version print version number, then exit - -Report bugs and patches to <config-patches@gnu.org>." - -version="\ -GNU config.guess ($timestamp) - -Originally written by Per Bothner. -Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 -Free Software Foundation, Inc. - -This is free software; see the source for copying conditions. There is NO -warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." - -help=" -Try \`$me --help' for more information." - -# Parse command line -while test $# -gt 0 ; do - case $1 in - --time-stamp | --time* | -t ) - echo "$timestamp" ; exit 0 ;; - --version | -v ) - echo "$version" ; exit 0 ;; - --help | --h* | -h ) - echo "$usage"; exit 0 ;; - -- ) # Stop option processing - shift; break ;; - - ) # Use stdin as input. - break ;; - -* ) - echo "$me: invalid option $1$help" >&2 - exit 1 ;; - * ) - break ;; - esac -done - -if test $# != 0; then - echo "$me: too many arguments$help" >&2 - exit 1 -fi - -trap 'exit 1' 1 2 15 - -# CC_FOR_BUILD -- compiler used by this script. Note that the use of a -# compiler to aid in system detection is discouraged as it requires -# temporary files to be created and, as you can see below, it is a -# headache to deal with in a portable fashion. - -# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. 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- 2020:CLIX:*:* | 2430:CLIX:*:*) - echo clipper-intergraph-clix${UNAME_RELEASE} - exit 0 ;; - mips:*:*:UMIPS | mips:*:*:RISCos) - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c -#ifdef __cplusplus -#include <stdio.h> /* for printf() prototype */ - int main (int argc, char *argv[]) { -#else - int main (argc, argv) int argc; char *argv[]; { -#endif - #if defined (host_mips) && defined (MIPSEB) - #if defined (SYSTYPE_SYSV) - printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0); - #endif - #if defined (SYSTYPE_SVR4) - printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0); - #endif - #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD) - printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0); - #endif - #endif - exit (-1); - } -EOF - $CC_FOR_BUILD -o $dummy $dummy.c \ - && $dummy `echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` \ - && exit 0 - echo mips-mips-riscos${UNAME_RELEASE} - exit 0 ;; - Motorola:PowerMAX_OS:*:*) - echo powerpc-motorola-powermax - exit 0 ;; - Motorola:*:4.3:PL8-*) - echo powerpc-harris-powermax - exit 0 ;; - Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*) - echo powerpc-harris-powermax - exit 0 ;; - Night_Hawk:Power_UNIX:*:*) - echo powerpc-harris-powerunix - exit 0 ;; - m88k:CX/UX:7*:*) - echo m88k-harris-cxux7 - exit 0 ;; - m88k:*:4*:R4*) - echo m88k-motorola-sysv4 - exit 0 ;; - m88k:*:3*:R3*) - echo m88k-motorola-sysv3 - exit 0 ;; - AViiON:dgux:*:*) - # DG/UX returns AViiON for all architectures - UNAME_PROCESSOR=`/usr/bin/uname -p` - if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ] - then - if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \ - [ ${TARGET_BINARY_INTERFACE}x = x ] - then - echo m88k-dg-dgux${UNAME_RELEASE} - else - echo m88k-dg-dguxbcs${UNAME_RELEASE} - fi - else - echo i586-dg-dgux${UNAME_RELEASE} - fi - exit 0 ;; - M88*:DolphinOS:*:*) # DolphinOS (SVR3) - echo m88k-dolphin-sysv3 - exit 0 ;; - M88*:*:R3*:*) - # Delta 88k system running SVR3 - echo m88k-motorola-sysv3 - exit 0 ;; - XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3) - echo m88k-tektronix-sysv3 - exit 0 ;; - Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD) - echo m68k-tektronix-bsd - exit 0 ;; - *:IRIX*:*:*) - echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'` - exit 0 ;; - ????????:AIX?:[12].1:2) # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX. - echo romp-ibm-aix # uname -m gives an 8 hex-code CPU id - exit 0 ;; # Note that: echo "'`uname -s`'" gives 'AIX ' - i*86:AIX:*:*) - echo i386-ibm-aix - exit 0 ;; - ia64:AIX:*:*) - if [ -x /usr/bin/oslevel ] ; then - IBM_REV=`/usr/bin/oslevel` - else - IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} - fi - echo ${UNAME_MACHINE}-ibm-aix${IBM_REV} - exit 0 ;; - *:AIX:2:3) - if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c - #include <sys/systemcfg.h> - - main() - { - if (!__power_pc()) - exit(1); - puts("powerpc-ibm-aix3.2.5"); - exit(0); - } -EOF - $CC_FOR_BUILD -o $dummy $dummy.c && $dummy && exit 0 - echo rs6000-ibm-aix3.2.5 - elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then - echo rs6000-ibm-aix3.2.4 - else - echo rs6000-ibm-aix3.2 - fi - exit 0 ;; - *:AIX:*:[45]) - IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'` - if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then - IBM_ARCH=rs6000 - else - IBM_ARCH=powerpc - fi - if [ -x /usr/bin/oslevel ] ; then - IBM_REV=`/usr/bin/oslevel` - else - IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} - fi - echo ${IBM_ARCH}-ibm-aix${IBM_REV} - exit 0 ;; - *:AIX:*:*) - echo rs6000-ibm-aix - exit 0 ;; - ibmrt:4.4BSD:*|romp-ibm:BSD:*) - echo romp-ibm-bsd4.4 - exit 0 ;; - ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and - echo romp-ibm-bsd${UNAME_RELEASE} # 4.3 with uname added to - exit 0 ;; # report: romp-ibm BSD 4.3 - *:BOSX:*:*) - echo rs6000-bull-bosx - exit 0 ;; - DPX/2?00:B.O.S.:*:*) - echo m68k-bull-sysv3 - exit 0 ;; - 9000/[34]??:4.3bsd:1.*:*) - echo m68k-hp-bsd - exit 0 ;; - hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*) - echo m68k-hp-bsd4.4 - exit 0 ;; - 9000/[34678]??:HP-UX:*:*) - HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` - case "${UNAME_MACHINE}" in - 9000/31? ) HP_ARCH=m68000 ;; - 9000/[34]?? ) HP_ARCH=m68k ;; - 9000/[678][0-9][0-9]) - if [ -x /usr/bin/getconf ]; then - sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null` - sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null` - case "${sc_cpu_version}" in - 523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0 - 528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1 - 532) # CPU_PA_RISC2_0 - case "${sc_kernel_bits}" in - 32) HP_ARCH="hppa2.0n" ;; - 64) HP_ARCH="hppa2.0w" ;; - '') HP_ARCH="hppa2.0" ;; # HP-UX 10.20 - esac ;; - esac - fi - if [ "${HP_ARCH}" = "" ]; then - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c - - #define _HPUX_SOURCE - #include <stdlib.h> - #include <unistd.h> - - int main () - { - #if defined(_SC_KERNEL_BITS) - long bits = sysconf(_SC_KERNEL_BITS); - #endif - long cpu = sysconf (_SC_CPU_VERSION); - - switch (cpu) - { - case CPU_PA_RISC1_0: puts ("hppa1.0"); break; - case CPU_PA_RISC1_1: puts ("hppa1.1"); break; - case CPU_PA_RISC2_0: - #if defined(_SC_KERNEL_BITS) - switch (bits) - { - case 64: puts ("hppa2.0w"); break; - case 32: puts ("hppa2.0n"); break; - default: puts ("hppa2.0"); break; - } break; - #else /* !defined(_SC_KERNEL_BITS) */ - puts ("hppa2.0"); break; - #endif - default: puts ("hppa1.0"); break; - } - exit (0); - } -EOF - (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy` - test -z "$HP_ARCH" && HP_ARCH=hppa - fi ;; - esac - if [ ${HP_ARCH} = "hppa2.0w" ] - then - # avoid double evaluation of $set_cc_for_build - test -n "$CC_FOR_BUILD" || eval $set_cc_for_build - if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E -) | grep __LP64__ >/dev/null - then - HP_ARCH="hppa2.0w" - else - HP_ARCH="hppa64" - fi - fi - echo ${HP_ARCH}-hp-hpux${HPUX_REV} - exit 0 ;; - ia64:HP-UX:*:*) - HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` - echo ia64-hp-hpux${HPUX_REV} - exit 0 ;; - 3050*:HI-UX:*:*) - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c - #include <unistd.h> - int - main () - { - long cpu = sysconf (_SC_CPU_VERSION); - /* The order matters, because CPU_IS_HP_MC68K erroneously returns - true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct - results, however. */ - if (CPU_IS_PA_RISC (cpu)) - { - switch (cpu) - { - case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break; - case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break; - case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break; - default: puts ("hppa-hitachi-hiuxwe2"); break; - } - } - else if (CPU_IS_HP_MC68K (cpu)) - puts ("m68k-hitachi-hiuxwe2"); - else puts ("unknown-hitachi-hiuxwe2"); - exit (0); - } -EOF - $CC_FOR_BUILD -o $dummy $dummy.c && $dummy && exit 0 - echo unknown-hitachi-hiuxwe2 - exit 0 ;; - 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* ) - echo hppa1.1-hp-bsd - exit 0 ;; - 9000/8??:4.3bsd:*:*) - echo hppa1.0-hp-bsd - exit 0 ;; - *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*) - echo hppa1.0-hp-mpeix - exit 0 ;; - hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* ) - echo hppa1.1-hp-osf - exit 0 ;; - hp8??:OSF1:*:*) - echo hppa1.0-hp-osf - exit 0 ;; - i*86:OSF1:*:*) - if [ -x /usr/sbin/sysversion ] ; then - echo ${UNAME_MACHINE}-unknown-osf1mk - else - echo ${UNAME_MACHINE}-unknown-osf1 - fi - exit 0 ;; - parisc*:Lites*:*:*) - echo hppa1.1-hp-lites - exit 0 ;; - C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*) - echo c1-convex-bsd - exit 0 ;; - C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*) - if getsysinfo -f scalar_acc - then echo c32-convex-bsd - else echo c2-convex-bsd - fi - exit 0 ;; - C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*) - echo c34-convex-bsd - exit 0 ;; - C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*) - echo c38-convex-bsd - exit 0 ;; - C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*) - echo c4-convex-bsd - exit 0 ;; - CRAY*Y-MP:*:*:*) - echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit 0 ;; - CRAY*[A-Z]90:*:*:*) - echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \ - | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \ - -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \ - -e 's/\.[^.]*$/.X/' - exit 0 ;; - CRAY*TS:*:*:*) - echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit 0 ;; - CRAY*T3E:*:*:*) - echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit 0 ;; - CRAY*SV1:*:*:*) - echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit 0 ;; - *:UNICOS/mp:*:*) - echo nv1-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit 0 ;; - F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*) - FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'` - FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` - FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'` - echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" - exit 0 ;; - 5000:UNIX_System_V:4.*:*) - FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` - FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'` - echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" - exit 0 ;; - i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*) - echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE} - exit 0 ;; - sparc*:BSD/OS:*:*) - echo sparc-unknown-bsdi${UNAME_RELEASE} - exit 0 ;; - *:BSD/OS:*:*) - echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE} - exit 0 ;; - *:FreeBSD:*:*) - # Determine whether the default compiler uses glibc. - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c - #include <features.h> - #if __GLIBC__ >= 2 - LIBC=gnu - #else - LIBC= - #endif -EOF - eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^LIBC=` - # GNU/KFreeBSD systems have a "k" prefix to indicate we are using - # FreeBSD's kernel, but not the complete OS. - case ${LIBC} in gnu) kernel_only='k' ;; esac - echo ${UNAME_MACHINE}-unknown-${kernel_only}freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`${LIBC:+-$LIBC} - exit 0 ;; - i*:CYGWIN*:*) - echo ${UNAME_MACHINE}-pc-cygwin - exit 0 ;; - i*:MINGW*:*) - echo ${UNAME_MACHINE}-pc-mingw32 - exit 0 ;; - i*:PW*:*) - echo ${UNAME_MACHINE}-pc-pw32 - exit 0 ;; - x86:Interix*:[34]*) - echo i586-pc-interix${UNAME_RELEASE}|sed -e 's/\..*//' - exit 0 ;; - [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*) - echo i${UNAME_MACHINE}-pc-mks - exit 0 ;; - i*:Windows_NT*:* | Pentium*:Windows_NT*:*) - # How do we know it's Interix rather than the generic POSIX subsystem? - # It also conflicts with pre-2.0 versions of AT&T UWIN. Should we - # UNAME_MACHINE based on the output of uname instead of i386? - echo i586-pc-interix - exit 0 ;; - i*:UWIN*:*) - echo ${UNAME_MACHINE}-pc-uwin - exit 0 ;; - p*:CYGWIN*:*) - echo powerpcle-unknown-cygwin - exit 0 ;; - prep*:SunOS:5.*:*) - echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` - exit 0 ;; - *:GNU:*:*) - # the GNU system - echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'` - exit 0 ;; - *:GNU/*:*:*) - # other systems with GNU libc and userland - echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-gnu - exit 0 ;; - i*86:Minix:*:*) - echo ${UNAME_MACHINE}-pc-minix - exit 0 ;; - arm*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit 0 ;; - cris:Linux:*:*) - echo cris-axis-linux-gnu - exit 0 ;; - ia64:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit 0 ;; - m68*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit 0 ;; - mips:Linux:*:*) - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c - #undef CPU - #undef mips - #undef mipsel - #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL) - CPU=mipsel - #else - #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB) - CPU=mips - #else - CPU= - #endif - #endif -EOF - eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^CPU=` - test x"${CPU}" != x && echo "${CPU}-unknown-linux-gnu" && exit 0 - ;; - mips64:Linux:*:*) - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c - #undef CPU - #undef mips64 - #undef mips64el - #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL) - CPU=mips64el - #else - #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB) - CPU=mips64 - #else - CPU= - #endif - #endif -EOF - eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^CPU=` - test x"${CPU}" != x && echo "${CPU}-unknown-linux-gnu" && exit 0 - ;; - ppc:Linux:*:*) - echo powerpc-unknown-linux-gnu - exit 0 ;; - ppc64:Linux:*:*) - echo powerpc64-unknown-linux-gnu - exit 0 ;; - alpha:Linux:*:*) - case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in - EV5) UNAME_MACHINE=alphaev5 ;; - EV56) UNAME_MACHINE=alphaev56 ;; - PCA56) UNAME_MACHINE=alphapca56 ;; - PCA57) UNAME_MACHINE=alphapca56 ;; - EV6) UNAME_MACHINE=alphaev6 ;; - EV67) UNAME_MACHINE=alphaev67 ;; - EV68*) UNAME_MACHINE=alphaev68 ;; - esac - objdump --private-headers /bin/sh | grep ld.so.1 >/dev/null - if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi - echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC} - exit 0 ;; - parisc:Linux:*:* | hppa:Linux:*:*) - # Look for CPU level - case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in - PA7*) echo hppa1.1-unknown-linux-gnu ;; - PA8*) echo hppa2.0-unknown-linux-gnu ;; - *) echo hppa-unknown-linux-gnu ;; - esac - exit 0 ;; - parisc64:Linux:*:* | hppa64:Linux:*:*) - echo hppa64-unknown-linux-gnu - exit 0 ;; - s390:Linux:*:* | s390x:Linux:*:*) - echo ${UNAME_MACHINE}-ibm-linux - exit 0 ;; - sh64*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit 0 ;; - sh*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit 0 ;; - sparc:Linux:*:* | sparc64:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-gnu - exit 0 ;; - x86_64:Linux:*:*) - echo x86_64-unknown-linux-gnu - exit 0 ;; - i*86:Linux:*:*) - # The BFD linker knows what the default object file format is, so - # first see if it will tell us. cd to the root directory to prevent - # problems with other programs or directories called `ld' in the path. - # Set LC_ALL=C to ensure ld outputs messages in English. - ld_supported_targets=`cd /; LC_ALL=C ld --help 2>&1 \ - | sed -ne '/supported targets:/!d - s/[ ][ ]*/ /g - s/.*supported targets: *// - s/ .*// - p'` - case "$ld_supported_targets" in - elf32-i386) - TENTATIVE="${UNAME_MACHINE}-pc-linux-gnu" - ;; - a.out-i386-linux) - echo "${UNAME_MACHINE}-pc-linux-gnuaout" - exit 0 ;; - coff-i386) - echo "${UNAME_MACHINE}-pc-linux-gnucoff" - exit 0 ;; - "") - # Either a pre-BFD a.out linker (linux-gnuoldld) or - # one that does not give us useful --help. - echo "${UNAME_MACHINE}-pc-linux-gnuoldld" - exit 0 ;; - esac - # Determine whether the default compiler is a.out or elf - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c - #include <features.h> - #ifdef __ELF__ - # ifdef __GLIBC__ - # if __GLIBC__ >= 2 - LIBC=gnu - # else - LIBC=gnulibc1 - # endif - # else - LIBC=gnulibc1 - # endif - #else - #ifdef __INTEL_COMPILER - LIBC=gnu - #else - LIBC=gnuaout - #endif - #endif - #ifdef __dietlibc__ - LIBC=dietlibc - #endif -EOF - eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^LIBC=` - test x"${LIBC}" != x && echo "${UNAME_MACHINE}-pc-linux-${LIBC}" && exit 0 - test x"${TENTATIVE}" != x && echo "${TENTATIVE}" && exit 0 - ;; - i*86:DYNIX/ptx:4*:*) - # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there. - # earlier versions are messed up and put the nodename in both - # sysname and nodename. - echo i386-sequent-sysv4 - exit 0 ;; - i*86:UNIX_SV:4.2MP:2.*) - # Unixware is an offshoot of SVR4, but it has its own version - # number series starting with 2... - # I am not positive that other SVR4 systems won't match this, - # I just have to hope. -- rms. - # Use sysv4.2uw... so that sysv4* matches it. - echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION} - exit 0 ;; - i*86:OS/2:*:*) - # If we were able to find `uname', then EMX Unix compatibility - # is probably installed. - echo ${UNAME_MACHINE}-pc-os2-emx - exit 0 ;; - i*86:XTS-300:*:STOP) - echo ${UNAME_MACHINE}-unknown-stop - exit 0 ;; - i*86:atheos:*:*) - echo ${UNAME_MACHINE}-unknown-atheos - exit 0 ;; - i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.0*:*) - echo i386-unknown-lynxos${UNAME_RELEASE} - exit 0 ;; - i*86:*DOS:*:*) - echo ${UNAME_MACHINE}-pc-msdosdjgpp - exit 0 ;; - i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*) - UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'` - if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then - echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL} - else - echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL} - fi - exit 0 ;; - i*86:*:5:[78]*) - case `/bin/uname -X | grep "^Machine"` in - *486*) UNAME_MACHINE=i486 ;; - *Pentium) UNAME_MACHINE=i586 ;; - *Pent*|*Celeron) UNAME_MACHINE=i686 ;; - esac - echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION} - exit 0 ;; - i*86:*:3.2:*) - if test -f /usr/options/cb.name; then - UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name` - echo ${UNAME_MACHINE}-pc-isc$UNAME_REL - elif /bin/uname -X 2>/dev/null >/dev/null ; then - UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')` - (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486 - (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \ - && UNAME_MACHINE=i586 - (/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \ - && UNAME_MACHINE=i686 - (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \ - && UNAME_MACHINE=i686 - echo ${UNAME_MACHINE}-pc-sco$UNAME_REL - else - echo ${UNAME_MACHINE}-pc-sysv32 - fi - exit 0 ;; - pc:*:*:*) - # Left here for compatibility: - # uname -m prints for DJGPP always 'pc', but it prints nothing about - # the processor, so we play safe by assuming i386. - echo i386-pc-msdosdjgpp - exit 0 ;; - Intel:Mach:3*:*) - echo i386-pc-mach3 - exit 0 ;; - paragon:*:*:*) - echo i860-intel-osf1 - exit 0 ;; - i860:*:4.*:*) # i860-SVR4 - if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; 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- m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*) - echo m68k-unknown-lynxos${UNAME_RELEASE} - exit 0 ;; - mc68030:UNIX_System_V:4.*:*) - echo m68k-atari-sysv4 - exit 0 ;; - TSUNAMI:LynxOS:2.*:*) - echo sparc-unknown-lynxos${UNAME_RELEASE} - exit 0 ;; - rs6000:LynxOS:2.*:*) - echo rs6000-unknown-lynxos${UNAME_RELEASE} - exit 0 ;; - PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.0*:*) - echo powerpc-unknown-lynxos${UNAME_RELEASE} - exit 0 ;; - SM[BE]S:UNIX_SV:*:*) - echo mips-dde-sysv${UNAME_RELEASE} - exit 0 ;; - RM*:ReliantUNIX-*:*:*) - echo mips-sni-sysv4 - exit 0 ;; - RM*:SINIX-*:*:*) - echo mips-sni-sysv4 - exit 0 ;; - *:SINIX-*:*:*) - if uname -p 2>/dev/null >/dev/null ; then - UNAME_MACHINE=`(uname -p) 2>/dev/null` - echo ${UNAME_MACHINE}-sni-sysv4 - else - echo ns32k-sni-sysv - fi - exit 0 ;; - PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort - # says <Richard.M.Bartel@ccMail.Census.GOV> - echo i586-unisys-sysv4 - exit 0 ;; - *:UNIX_System_V:4*:FTX*) - # From Gerald Hewes <hewes@openmarket.com>. - # How about differentiating between stratus architectures? -djm - echo hppa1.1-stratus-sysv4 - exit 0 ;; - *:*:*:FTX*) - # From seanf@swdc.stratus.com. - echo i860-stratus-sysv4 - exit 0 ;; - *:VOS:*:*) - # From Paul.Green@stratus.com. - echo hppa1.1-stratus-vos - exit 0 ;; - mc68*:A/UX:*:*) - echo m68k-apple-aux${UNAME_RELEASE} - exit 0 ;; - news*:NEWS-OS:6*:*) - echo mips-sony-newsos6 - exit 0 ;; - R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*) - if [ -d /usr/nec ]; then - echo mips-nec-sysv${UNAME_RELEASE} - else - echo mips-unknown-sysv${UNAME_RELEASE} - fi - exit 0 ;; - BeBox:BeOS:*:*) # BeOS running on hardware made by Be, PPC only. - echo powerpc-be-beos - exit 0 ;; - BeMac:BeOS:*:*) # BeOS running on Mac or Mac clone, PPC only. - echo powerpc-apple-beos - exit 0 ;; - BePC:BeOS:*:*) # BeOS running on Intel PC compatible. - echo i586-pc-beos - exit 0 ;; - SX-4:SUPER-UX:*:*) - echo sx4-nec-superux${UNAME_RELEASE} - exit 0 ;; - SX-5:SUPER-UX:*:*) - echo sx5-nec-superux${UNAME_RELEASE} - exit 0 ;; - SX-6:SUPER-UX:*:*) - echo sx6-nec-superux${UNAME_RELEASE} - exit 0 ;; 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then - UNAME_MACHINE=i386 - else - UNAME_MACHINE="$cputype" - fi - echo ${UNAME_MACHINE}-unknown-plan9 - exit 0 ;; - *:TOPS-10:*:*) - echo pdp10-unknown-tops10 - exit 0 ;; - *:TENEX:*:*) - echo pdp10-unknown-tenex - exit 0 ;; - KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*) - echo pdp10-dec-tops20 - exit 0 ;; - XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*) - echo pdp10-xkl-tops20 - exit 0 ;; - *:TOPS-20:*:*) - echo pdp10-unknown-tops20 - exit 0 ;; - *:ITS:*:*) - echo pdp10-unknown-its - exit 0 ;; - SEI:*:*:SEIUX) - echo mips-sei-seiux${UNAME_RELEASE} - exit 0 ;; - *:DRAGONFLY:*:*) - echo ${UNAME_MACHINE}-unknown-dragonfly${UNAME_RELEASE} - exit 0 ;; -esac - -#echo '(No uname command or uname output not recognized.)' 1>&2 -#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2 - -eval $set_cc_for_build -cat >$dummy.c <<EOF -#ifdef _SEQUENT_ -# include <sys/types.h> -# include <sys/utsname.h> -#endif -main () -{ -#if defined (sony) -#if defined (MIPSEB) - /* BFD wants "bsd" instead of "newsos". Perhaps BFD should be changed, - I don't know.... */ - printf ("mips-sony-bsd\n"); exit (0); -#else -#include <sys/param.h> - printf ("m68k-sony-newsos%s\n", -#ifdef NEWSOS4 - "4" -#else - "" -#endif - ); exit (0); -#endif -#endif - -#if defined (__arm) && defined (__acorn) && defined (__unix) - printf ("arm-acorn-riscix"); exit (0); -#endif - -#if defined (hp300) && !defined (hpux) - printf ("m68k-hp-bsd\n"); exit (0); -#endif - -#if defined (NeXT) -#if !defined (__ARCHITECTURE__) -#define __ARCHITECTURE__ "m68k" -#endif - int version; - version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`; - if (version < 4) - printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version); - else - printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version); - exit (0); -#endif - -#if defined (MULTIMAX) || defined (n16) -#if defined (UMAXV) - printf ("ns32k-encore-sysv\n"); exit (0); -#else -#if defined (CMU) - printf ("ns32k-encore-mach\n"); exit (0); -#else - printf ("ns32k-encore-bsd\n"); exit (0); -#endif -#endif -#endif - -#if defined (__386BSD__) - printf ("i386-pc-bsd\n"); exit (0); -#endif - -#if defined (sequent) -#if defined (i386) - printf ("i386-sequent-dynix\n"); exit (0); -#endif -#if defined (ns32000) - printf ("ns32k-sequent-dynix\n"); exit (0); -#endif -#endif - -#if defined (_SEQUENT_) - struct utsname un; - - uname(&un); - - if (strncmp(un.version, "V2", 2) == 0) { - printf ("i386-sequent-ptx2\n"); exit (0); - } - if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */ - printf ("i386-sequent-ptx1\n"); exit (0); - } - printf ("i386-sequent-ptx\n"); exit (0); - -#endif - -#if defined (vax) -# if !defined (ultrix) -# include <sys/param.h> -# if defined (BSD) -# if BSD == 43 - printf ("vax-dec-bsd4.3\n"); exit (0); -# else -# if BSD == 199006 - printf ("vax-dec-bsd4.3reno\n"); exit (0); -# else - printf ("vax-dec-bsd\n"); exit (0); -# endif -# endif -# else - printf ("vax-dec-bsd\n"); exit (0); -# endif -# else - printf ("vax-dec-ultrix\n"); exit (0); -# endif -#endif - -#if defined (alliant) && defined (i860) - printf ("i860-alliant-bsd\n"); exit (0); -#endif - - exit (1); -} -EOF - -$CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && $dummy && exit 0 - -# Apollos put the system type in the environment. - -test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit 0; } - -# Convex versions that predate uname can use getsysinfo(1) - -if [ -x /usr/convex/getsysinfo ] -then - case `getsysinfo -f cpu_type` in - c1*) - echo c1-convex-bsd - exit 0 ;; - c2*) - if getsysinfo -f scalar_acc - then echo c32-convex-bsd - else echo c2-convex-bsd - fi - exit 0 ;; - c34*) - echo c34-convex-bsd - exit 0 ;; - c38*) - echo c38-convex-bsd - exit 0 ;; - c4*) - echo c4-convex-bsd - exit 0 ;; - esac -fi - -cat >&2 <<EOF -$0: unable to guess system type - -This script, last modified $timestamp, has failed to recognize -the operating system you are using. It is advised that you -download the most up to date version of the config scripts from - - ftp://ftp.gnu.org/pub/gnu/config/ - -If the version you run ($0) is already up to date, please -send the following data and any information you think might be -pertinent to <config-patches@gnu.org> in order to provide the needed -information to handle your system. - -config.guess timestamp = $timestamp - -uname -m = `(uname -m) 2>/dev/null || echo unknown` -uname -r = `(uname -r) 2>/dev/null || echo unknown` -uname -s = `(uname -s) 2>/dev/null || echo unknown` -uname -v = `(uname -v) 2>/dev/null || echo unknown` - -/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null` -/bin/uname -X = `(/bin/uname -X) 2>/dev/null` - -hostinfo = `(hostinfo) 2>/dev/null` -/bin/universe = `(/bin/universe) 2>/dev/null` -/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null` -/bin/arch = `(/bin/arch) 2>/dev/null` -/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null` -/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null` - -UNAME_MACHINE = ${UNAME_MACHINE} -UNAME_RELEASE = ${UNAME_RELEASE} -UNAME_SYSTEM = ${UNAME_SYSTEM} -UNAME_VERSION = ${UNAME_VERSION} -EOF - -exit 1 - -# Local variables: -# eval: (add-hook 'write-file-hooks 'time-stamp) -# time-stamp-start: "timestamp='" -# time-stamp-format: "%:y-%02m-%02d" -# time-stamp-end: "'" -# End: diff --git a/contrib/libpcap/config.h.in b/contrib/libpcap/config.h.in deleted file mode 100644 index 8aa879c..0000000 --- a/contrib/libpcap/config.h.in +++ /dev/null @@ -1,198 +0,0 @@ -/* config.h.in. Generated from configure.in by autoheader. */ -/* Long story short: aclocal.m4 depends on autoconf 2.13 - * implementation details wrt "const"; newer versions - * have different implementation details so for now we - * put "const" here. This may cause duplicate definitions - * in config.h but that should be OK since they're the same. - */ -#undef const - -/* Enable optimizer debugging */ -#undef BDEBUG - -/* define if you have a cloning BPF device */ -#undef HAVE_CLONING_BPF - -/* define if you have the DAG API */ -#undef HAVE_DAG_API - -/* define if you have dag_get_erf_types() */ -#undef HAVE_DAG_GET_ERF_TYPES - -/* define if you have streams capable DAG API */ -#undef HAVE_DAG_STREAMS_API - -/* Define to 1 if you have the declaration of `ether_hostton', and to 0 if you - don't. */ -#undef HAVE_DECL_ETHER_HOSTTON - -/* define if you have a /dev/dlpi */ -#undef HAVE_DEV_DLPI - -/* Define to 1 if you have the `ether_hostton' function. */ -#undef HAVE_ETHER_HOSTTON - -/* on HP-UX 10.20 or later */ -#undef HAVE_HPUX10_20_OR_LATER - -/* on HP-UX 9.x */ -#undef HAVE_HPUX9 - -/* if ppa_info_t_dl_module_id exists */ -#undef HAVE_HP_PPA_INFO_T_DL_MODULE_ID_1 - -/* Define to 1 if you have the <inttypes.h> header file. */ -#undef HAVE_INTTYPES_H - -/* Define to 1 if you have the <limits.h> header file. */ -#undef HAVE_LIMITS_H - -/* Define to 1 if you have the <memory.h> header file. */ -#undef HAVE_MEMORY_H - -/* Define to 1 if you have the <netinet/ether.h> header file. */ -#undef HAVE_NETINET_ETHER_H - -/* Define to 1 if you have the <netinet/if_ether.h> header file. */ -#undef HAVE_NETINET_IF_ETHER_H - -/* Define to 1 if you have the <net/pfvar.h> header file. */ -#undef HAVE_NET_PFVAR_H - -/* if there's an os_proto.h */ -#undef HAVE_OS_PROTO_H - -/* Define to 1 if you have the <paths.h> header file. */ -#undef HAVE_PATHS_H - -/* define if you have a /proc/net/dev */ -#undef HAVE_PROC_NET_DEV - -/* define if you have a Septel API */ -#undef HAVE_SEPTEL_API - -/* Define to 1 if you have the `snprintf' function. */ -#undef HAVE_SNPRINTF - -/* if struct sockaddr has sa_len */ -#undef HAVE_SOCKADDR_SA_LEN - -/* if struct sockaddr_storage exists */ -#undef HAVE_SOCKADDR_STORAGE - -/* On solaris */ -#undef HAVE_SOLARIS - -/* Define to 1 if you have the <stdint.h> header file. */ -#undef HAVE_STDINT_H - -/* Define to 1 if you have the <stdlib.h> header file. */ -#undef HAVE_STDLIB_H - -/* Define to 1 if you have the `strerror' function. */ -#undef HAVE_STRERROR - -/* Define to 1 if you have the <strings.h> header file. */ -#undef HAVE_STRINGS_H - -/* Define to 1 if you have the <string.h> header file. */ -#undef HAVE_STRING_H - -/* Define to 1 if you have the `strlcpy' function. */ -#undef HAVE_STRLCPY - -/* Define to 1 if the system has the type `struct ether_addr'. */ -#undef HAVE_STRUCT_ETHER_ADDR - -/* Define to 1 if you have the <sys/bufmod.h> header file. */ -#undef HAVE_SYS_BUFMOD_H - -/* Define to 1 if you have the <sys/dlpi_ext.h> header file. */ -#undef HAVE_SYS_DLPI_EXT_H - -/* Define to 1 if you have the <sys/ioccom.h> header file. */ -#undef HAVE_SYS_IOCCOM_H - -/* Define to 1 if you have the <sys/sockio.h> header file. */ -#undef HAVE_SYS_SOCKIO_H - -/* Define to 1 if you have the <sys/stat.h> header file. */ -#undef HAVE_SYS_STAT_H - -/* Define to 1 if you have the <sys/types.h> header file. */ -#undef HAVE_SYS_TYPES_H - -/* if if_packet.h has tpacket_stats defined */ -#undef HAVE_TPACKET_STATS - -/* Define to 1 if you have the <unistd.h> header file. */ -#undef HAVE_UNISTD_H - -/* define if version.h is generated in the build procedure */ -#undef HAVE_VERSION_H - -/* Define to 1 if you have the `vsnprintf' function. */ -#undef HAVE_VSNPRINTF - -/* define if your compiler has __attribute__ */ -#undef HAVE___ATTRIBUTE__ - -/* IPv6 */ -#undef INET6 - -/* if unaligned access fails */ -#undef LBL_ALIGN - -/* Define to 1 if netinet/ether.h declares `ether_hostton' */ -#undef NETINET_ETHER_H_DECLARES_ETHER_HOSTTON - -/* Define to 1 if netinet/if_ether.h declares `ether_hostton' */ -#undef NETINET_IF_ETHER_H_DECLARES_ETHER_HOSTTON - -/* do not use protochain */ -#undef NO_PROTOCHAIN - -/* Define to the address where bug reports for this package should be sent. */ -#undef PACKAGE_BUGREPORT - -/* Define to the full name of this package. */ -#undef PACKAGE_NAME - -/* Define to the full name and version of this package. */ -#undef PACKAGE_STRING - -/* Define to the one symbol short name of this package. */ -#undef PACKAGE_TARNAME - -/* Define to the version of this package. */ -#undef PACKAGE_VERSION - -/* /dev/dlpi directory */ -#undef PCAP_DEV_PREFIX - -/* Define to 1 if you have the ANSI C header files. */ -#undef STDC_HEADERS - -/* Enable parser debugging */ -#undef YYDEBUG - -/* needed on HP-UX */ -#undef _HPUX_SOURCE - -/* define on AIX to get certain functions */ -#undef _SUN - -/* Define as token for inline if inlining supported */ -#undef inline - -/* on sinix */ -#undef sinix - -/* if we have u_int16_t */ -#undef u_int16_t - -/* if we have u_int32_t */ -#undef u_int32_t - -/* if we have u_int8_t */ -#undef u_int8_t diff --git a/contrib/libpcap/config.sub b/contrib/libpcap/config.sub deleted file mode 100755 index 5698174..0000000 --- a/contrib/libpcap/config.sub +++ /dev/null @@ -1,1531 +0,0 @@ -#! /bin/sh -# Configuration validation subroutine script. -# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, -# 2000, 2001, 2002, 2003 Free Software Foundation, Inc. - 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See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 59 Temple Place - Suite 330, -# Boston, MA 02111-1307, USA. - -# As a special exception to the GNU General Public License, if you -# distribute this file as part of a program that contains a -# configuration script generated by Autoconf, you may include it under -# the same distribution terms that you use for the rest of that program. - -# Please send patches to <config-patches@gnu.org>. 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All rights reserved. -dnl -dnl Process this file with autoconf to produce a configure script. -dnl - -AC_REVISION($Revision: 1.120.2.13 $) -AC_PREREQ(2.50) -AC_INIT(pcap.c) - -AC_CANONICAL_SYSTEM - -AC_LBL_C_INIT(V_CCOPT, V_INCLS, V_LIBS) -AC_LBL_C_INLINE -AC_C___ATTRIBUTE__ - -AC_LBL_CHECK_TYPE(u_int8_t, u_char) -AC_LBL_CHECK_TYPE(u_int16_t, u_short) -AC_LBL_CHECK_TYPE(u_int32_t, u_int) - -dnl -dnl libpcap doesn't itself use <sys/ioccom.h>; however, the test program -dnl in "AC_LBL_FIXINCLUDES" in "aclocal.m4" uses it, so we have to -dnl test for it and set "HAVE_SYS_IOCCOM_H" if we have it, otherwise -dnl "AC_LBL_FIXINCLUDES" won't work on some platforms such as Solaris. -dnl -AC_CHECK_HEADERS(sys/ioccom.h sys/sockio.h limits.h paths.h) -AC_CHECK_HEADERS(net/pfvar.h, , , [#include <sys/types.h> -#include <sys/socket.h> -#include <net/if.h>]) -AC_CHECK_HEADERS(netinet/if_ether.h, , , [#include <sys/types.h> -#include <sys/socket.h>]) -if test "$ac_cv_header_netinet_if_ether_h" != yes; then - # - # The simple test didn't work. - # Do we need to include <net/if.h> first? - # Unset ac_cv_header_netinet_if_ether_h so we don't - # treat the previous failure as a cached value and - # suppress the next test. - # - AC_MSG_NOTICE([Rechecking with some additional includes]) - unset ac_cv_header_netinet_if_ether_h - AC_CHECK_HEADERS(netinet/if_ether.h, , , [#include <sys/types.h> -#include <sys/socket.h> -#include <netinet/in.h> -struct mbuf; -struct rtentry; -#include <net/if.h>]) -fi - -AC_LBL_FIXINCLUDES - -AC_CHECK_FUNCS(strerror strlcpy) - -needsnprintf=no -AC_CHECK_FUNCS(vsnprintf snprintf,, - [needsnprintf=yes]) -if test $needsnprintf = yes; then - AC_LIBOBJ(snprintf) -fi - -# -# Do this before checking for ether_hostton(), as it's a -# "gethostbyname() -ish function". -# -AC_LBL_LIBRARY_NET - -# -# You are in a twisty little maze of UN*Xes, all different. -# Some might not have ether_hostton(). -# Some might have it, but not declare it in any header file. -# Some might have it, but declare it in <netinet/if_ether.h>. -# Some might have it, but declare it in <netinet/ether.h> -# (And some might have it but document it as something declared in -# <netinet/ethernet.h>, although <netinet/if_ether.h> appears to work.) -# -# Before you is a C compiler. -# -AC_CHECK_FUNCS(ether_hostton) -if test "$ac_cv_func_ether_hostton" = yes; then - # - # OK, we have ether_hostton(). 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- esac]) -fi - -AC_MSG_CHECKING(if --enable-ipv6 option is specified) -AC_ARG_ENABLE(ipv6, [ --enable-ipv6 build IPv6-capable version]) -if test "$enable_ipv6" = "yes"; then - AC_DEFINE(INET6,1,[IPv6]) -fi -AC_MSG_RESULT(${enable_ipv6-no}) - -AC_MSG_CHECKING(whether to build optimizer debugging code) -AC_ARG_ENABLE(optimizer-dbg, [ --enable-optimizer-dbg build optimizer debugging code]) -if test "$enable_optimizer_dbg" = "yes"; then - AC_DEFINE(BDEBUG,1,[Enable optimizer debugging]) -fi -AC_MSG_RESULT(${enable_optimizer_dbg-no}) - -AC_MSG_CHECKING(whether to build parser debugging code) -AC_ARG_ENABLE(yydebug, [ --enable-yydebug build parser debugging code]) -if test "$enable_yydebug" = "yes"; then - AC_DEFINE(YYDEBUG,1,[Enable parser debugging]) -fi -AC_MSG_RESULT(${enable_yydebug-no}) - -case "$V_PCAP" in - -dlpi) - AC_CHECK_HEADERS(sys/bufmod.h sys/dlpi_ext.h) - AC_MSG_CHECKING(for /dev/dlpi device) - if test -c /dev/dlpi ; then - AC_MSG_RESULT(yes) - AC_DEFINE(HAVE_DEV_DLPI, 1, [define if you have a /dev/dlpi]) - else - AC_MSG_RESULT(no) - dir="/dev/dlpi" - AC_MSG_CHECKING(for $dir directory) - if test -d $dir ; 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then - ac_cv_lbl_proc_net_dev=yes -else - ac_cv_lbl_proc_net_dev=no -fi -if test $ac_cv_lbl_proc_net_dev = yes; then - AC_DEFINE(HAVE_PROC_NET_DEV, 1, [define if you have a /proc/net/dev]) -fi -AC_MSG_RESULT($ac_cv_lbl_proc_net_dev) - -# Check for Endace DAG card support. -AC_ARG_WITH([dag], [ --with-dag[[=DIR]] include Endace DAG support ("yes", "no" or DIR; default="yes" on BSD and Linux if present)], -[ - if test "$withval" = no - then - # User doesn't want DAG support. - want_dag=no - elif test "$withval" = yes - then - # User wants DAG support but hasn't specified a directory. - want_dag=yes - else - # User wants DAG support and has specified a directory, so use the provided value. - want_dag=yes - dag_root=$withval - fi -],[ - # - # Use DAG API if present, otherwise don't - # - want_dag=ifpresent -]) - -AC_ARG_WITH([dag-includes], [ --with-dag-includes=DIR Endace DAG include directory], -[ - # User wants DAG support and has specified a header directory, so use the provided value. - want_dag=yes - dag_include_dir=$withval -],[]) - -AC_ARG_WITH([dag-libraries], [ --with-dag-libraries=DIR Endace DAG library directory], -[ - # User wants DAG support and has specified a library directory, so use the provided value. - want_dag=yes - dag_lib_dir=$withval -],[]) - -case "$V_PCAP" in -linux|bpf|dag) - # - # We support the DAG API if we're on Linux or BSD, or if we're - # building a DAG-only libpcap. - # - ;; -*) - # - # If the user explicitly requested DAG, tell them it's not - # supported. - # - # If they expressed no preference, don't include it. - # - if test $want_dag = yes; then - AC_MSG_ERROR([DAG support is only available with 'linux' 'bpf' and 'dag' packet capture types]) - elif test $want_dag = yes; then - want_dag=no - fi - ;; -esac - -ac_cv_lbl_dag_api=no -if test "$want_dag" != no; then - - AC_MSG_CHECKING([whether we have DAG API headers]) - - # If necessary, set default paths for DAG API headers and libraries. - if test -z "$dag_root"; then - dag_root=/usr/local - fi - - if test -z "$dag_include_dir"; then - dag_include_dir="$dag_root/include" - fi - - if test -z "$dag_lib_dir"; then - dag_lib_dir="$dag_root/lib" - fi - - if test -z "$dag_tools_dir"; then - dag_tools_dir="$dag_root/tools" - fi - - if test -r $dag_include_dir/dagapi.h; then - ac_cv_lbl_dag_api=yes - fi - AC_MSG_RESULT([$ac_cv_lbl_dag_api ($dag_include_dir)]) -fi - -if test $ac_cv_lbl_dag_api = yes; then - - AC_MSG_CHECKING([dagapi.o]) - dagapi_obj=no - if test -r $dag_tools_dir/dagapi.o; then - # 2.4.x. - dagapi_obj=$dag_tools_dir/dagapi.o - elif test -r $dag_lib_dir/dagapi.o; then - # 2.5.x. - dagapi_obj=$dag_lib_dir/dagapi.o - elif test -r $dag_lib_dir/libdag.a; then - # 2.5.x. - ar x $dag_lib_dir/libdag.a dagapi.o - if test -r ./dagapi.o; then - dagapi_obj=./dagapi.o - else - ar x $dag_lib_dir/libdag.a libdag_la-dagapi.o - if test -r ./libdag_la-dagapi.o; then - dagapi_obj=./libdag_la-dagapi.o - fi - fi - fi - - if test $dagapi_obj = no; then - AC_MSG_RESULT([no (checked $dag_lib_dir $dag_tools_dir $dag_lib_dir/libdag.a)]) - ac_cv_lbl_dag_api=no - else - AC_MSG_RESULT([yes ($dagapi_obj)]) - fi -fi - -if test $ac_cv_lbl_dag_api = yes; then - - AC_MSG_CHECKING([dagopts.o]) - dagopts_obj=no - if test -r $dag_tools_dir/dagopts.o; then - # 2.4.x. - dagopts_obj=$dag_tools_dir/dagopts.o - elif test -r $dag_lib_dir/dagopts.o; then - # 2.5.x. - dagopts_obj=$dag_lib_dir/dagopts.o - elif test -r $dag_lib_dir/libdag.a; then - # 2.5.x. - ar x $dag_lib_dir/libdag.a dagopts.o - if test -r ./dagopts.o; then - dagopts_obj=./dagopts.o - else - ar x $dag_lib_dir/libdag.a libdag_la-dagopts.o - if test -r ./libdag_la-dagopts.o; then - dagopts_obj=./libdag_la-dagopts.o - fi - fi - fi - - if test $dagopts_obj = no; then - AC_MSG_RESULT([no (checked $dag_lib_dir $dag_tools_dir $dag_lib_dir/libdag.a)]) - ac_cv_lbl_dag_api=no - else - AC_MSG_RESULT([yes ($dagopts_obj)]) - fi -fi - -if test $ac_cv_lbl_dag_api = yes; then - # Under 2.5.x only we need to add dagreg.o. - if test -r $dag_include_dir/dagreg.h; then - AC_MSG_CHECKING([dagreg.o]) - dagreg_obj=no - if test -r $dag_lib_dir/dagreg.o; then - # Object file is ready and waiting. - dagreg_obj=$dag_lib_dir/dagreg.o - elif test -r $dag_lib_dir/libdag.a; then - # Extract from libdag.a. - ar x $dag_lib_dir/libdag.a dagreg.o - if test -r ./dagreg.o; then - dagreg_obj=./dagreg.o - else - ar x $dag_lib_dir/libdag.a libdag_la-dagreg.o - if test -r ./libdag_la-dagreg.o; then - dagreg_obj=./libdag_la-dagreg.o - fi - fi - fi - - if test $dagreg_obj = no; then - AC_MSG_RESULT([no (checked $dag_lib_dir $dag_lib_dir/libdag.a)]) - ac_cv_lbl_dag_api=no - else - AC_MSG_RESULT([yes ($dagreg_obj)]) - fi - fi -fi - -if test $ac_cv_lbl_dag_api = yes; then - V_INCLS="$V_INCLS -I$dag_include_dir" - V_LIBS="$V_LIBS $dagapi_obj $dagopts_obj $dagreg_obj" - if test $V_PCAP != dag ; then - SSRC="pcap-dag.c" - fi - - # See if we can find a general version string. - # Don't need to save and restore LIBS to prevent -ldag being - # included if there's a found-action (arg 3). - saved_ldflags=$LDFLAGS - LDFLAGS="-L$dag_lib_dir" - AC_CHECK_LIB([dag], [dag_attach_stream], [dag_version="2.5.x"], [dag_version="2.4.x"]) - AC_CHECK_LIB([dag],[dag_get_erf_types], [ - AC_DEFINE(HAVE_DAG_GET_ERF_TYPES, 1, [define if you have dag_get_erf_types()])] - ) - LDFLAGS=$saved_ldflags - - if test "$dag_version" = 2.5.x; then - AC_DEFINE(HAVE_DAG_STREAMS_API, 1, [define if you have streams capable DAG API]) - DAGLIBS="-ldag" - fi - - # See if we can find a specific version string. - AC_MSG_CHECKING([the DAG API version]) - if test -r "$dag_root/VERSION"; then - dag_version="`cat $dag_root/VERSION`" - fi - AC_MSG_RESULT([$dag_version]) - AC_DEFINE(HAVE_DAG_API, 1, [define if you have the DAG API]) -fi - -if test $ac_cv_lbl_dag_api = no; then - if test "$want_dag" = yes; then - # User wanted DAG support but we couldn't find it. - AC_MSG_ERROR([DAG API requested, but not found at $dag_root: use --without-dag]) - fi - - if test "$V_PCAP" = dag; then - # User requested "dag" capture type but the DAG API wasn't - # found. - AC_MSG_ERROR([Specifying the capture type as "dag" requires the DAG API to be present; use the --with-dag options to specify the location. (Try "./configure --help" for more information.)]) - fi -fi - -AC_ARG_WITH(septel, [ --with-septel[[=DIR]] include Septel support (located in directory DIR, if supplied). [default=yes, on Linux, if present]], -[ - if test "$withval" = no - then - want_septel=no - elif test "$withval" = yes - then - want_septel=yes - septel_root= - else - want_septel=yes - septel_root=$withval - fi -],[ - # - # Use Septel API if present, otherwise don't - # - want_septel=ifpresent - septel_root=./../septel -]) -ac_cv_lbl_septel_api=no -case "$V_PCAP" in -linux|septel) - # - # We support the Septel API if we're on Linux, or if we're building - # a Septel-only libpcap. - # - ;; -*) - # - # If the user explicitly requested Septel, tell them it's not - # supported. - # - # If they expressed no preference, don't include it. - # - if test $want_septel = yes; then - AC_MSG_ERROR(Septel support only available with 'linux' and 'septel' packet capture types) - elif test $want_septel = yes; then - want_septel=no - fi - ;; -esac - -if test "$with_septel" != no; then - AC_MSG_CHECKING(whether we have Septel API) - - if test -z "$septel_root"; then - septel_root=$srcdir/../septel - - fi - - septel_tools_dir="$septel_root" - septel_include_dir="$septel_root/INC" - DEF="-DHAVE_SEPTEL_API" - - ac_cv_lbl_septel_api=no - if test -r "$septel_include_dir/msg.h"; then - V_INCLS="$V_INCLS -I$septel_include_dir" - V_DEFS="$V_DEFS $DEF" - V_LIBS="$V_LIBS $septel_tools_dir/asciibin.o $septel_tools_dir/bit2byte.o $septel_tools_dir/confirm.o $septel_tools_dir/fmtmsg.o $septel_tools_dir/gct_unix.o $septel_tools_dir/hqueue.o $septel_tools_dir/ident.o $septel_tools_dir/mem.o $septel_tools_dir/pack.o $septel_tools_dir/parse.o $septel_tools_dir/pool.o $septel_tools_dir/sdlsig.o $septel_tools_dir/strtonum.o $septel_tools_dir/timer.o $septel_tools_dir/trace.o " - - if test "$V_PCAP" != septel ; then - SSRC="pcap-septel.c" - - fi - ac_cv_lbl_septel_api=yes - fi - - AC_MSG_RESULT($ac_cv_lbl_septel_api) - if test $ac_cv_lbl_septel_api = no; then - if test "$want_septel" = yes; then - AC_MSG_ERROR(Septel API not found under directory $septel_root; use --without-septel) - fi - else - AC_DEFINE(HAVE_SEPTEL_API, 1, [define if you have a Septel API]) - fi -fi - -if test "$V_PCAP" = septel -a "$ac_cv_lbl_septel_api" = no; then - AC_MSG_ERROR(Specifying the capture type as 'septel' requires the Septel API to be present; use --with-septel=DIR) -fi - - -AC_LBL_LEX_AND_YACC(V_LEX, V_YACC, pcap_) -if test "$V_LEX" = lex ; then -# Some versions of lex can't handle the definitions section of scanner.l . -# Try lexing it and complain if it can't deal. - AC_CACHE_CHECK([for capable lex], tcpdump_cv_capable_lex, - if lex -t scanner.l > /dev/null 2>&1; then - tcpdump_cv_capable_lex=yes - else - tcpdump_cv_capable_lex=insufficient - fi) - if test $tcpdump_cv_capable_lex = insufficient ; then - AC_MSG_ERROR([Your operating system's lex is insufficient to compile - libpcap. flex is a lex replacement that has many advantages, including - being able to compile libpcap. For more information, see - http://www.gnu.org/software/flex/flex.html .]) - fi -fi - -DYEXT="so" -case "$host_os" in - -aix*) - dnl Workaround to enable certain features - AC_DEFINE(_SUN,1,[define on AIX to get certain functions]) - ;; - -hpux9*) - AC_DEFINE(HAVE_HPUX9,1,[on HP-UX 9.x]) - ;; - -hpux10.0*) - ;; - -hpux10.1*) - ;; - -hpux*) - dnl HPUX 10.20 and above is similar to HPUX 9, but - dnl not the same.... - dnl - dnl XXX - DYEXT should be set to "sl" if this is building - dnl for 32-bit PA-RISC, but should be left as "so" for - dnl 64-bit PA-RISC or, I suspect, IA-64. - AC_DEFINE(HAVE_HPUX10_20_OR_LATER,1,[on HP-UX 10.20 or later]) - ;; - -sinix*) - AC_MSG_CHECKING(if SINIX compiler defines sinix) - AC_CACHE_VAL(ac_cv_cc_sinix_defined, - AC_TRY_COMPILE( - [], - [int i = sinix;], - ac_cv_cc_sinix_defined=yes, - ac_cv_cc_sinix_defined=no)) - AC_MSG_RESULT($ac_cv_cc_sinix_defined) - if test $ac_cv_cc_sinix_defined = no ; then - AC_DEFINE(sinix,1,[on sinix]) - fi - ;; - -solaris*) - AC_DEFINE(HAVE_SOLARIS,1,[On solaris]) - ;; - -darwin*) - DYEXT="dylib" - V_CCOPT="$V_CCOPT -fno-common" - ;; - -linux*) - V_CCOPT="$V_CCOPT -fPIC" - ;; - -esac - -AC_PROG_RANLIB - -AC_LBL_DEVEL(V_CCOPT) - -AC_LBL_SOCKADDR_SA_LEN - -AC_LBL_SOCKADDR_STORAGE - -AC_LBL_HP_PPA_INFO_T_DL_MODULE_ID_1 - -AC_LBL_UNALIGNED_ACCESS - -# -# Makefile.in includes rules to generate version.h, so we assume -# that it will be generated if autoconf is used. -# -AC_DEFINE(HAVE_VERSION_H, 1, [define if version.h is generated in the build procedure]) - -rm -f net -ln -s ${srcdir}/bpf/net net - -AC_SUBST(V_CCOPT) -AC_SUBST(V_DEFS) -AC_SUBST(V_INCLS) -AC_SUBST(V_LIBS) -AC_SUBST(V_LEX) -AC_SUBST(V_PCAP) -AC_SUBST(V_FINDALLDEVS) -AC_SUBST(V_RANLIB) -AC_SUBST(V_YACC) -AC_SUBST(SSRC) -AC_SUBST(DYEXT) -AC_SUBST(DAGLIBS) - -AC_PROG_INSTALL - -AC_CONFIG_HEADER(config.h) - -AC_OUTPUT(Makefile) - -if test -f .devel ; then - make depend -fi -exit 0 diff --git a/contrib/libpcap/doc/pcap.html b/contrib/libpcap/doc/pcap.html deleted file mode 100644 index 94e3514..0000000 --- a/contrib/libpcap/doc/pcap.html +++ /dev/null @@ -1,997 +0,0 @@ -<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> -<html lang="en"><head><title>PCAP New Generation Dump File Format</title> -<meta name="description" content="PCAP New Generation Dump File Format"> -<meta name="keywords" content="Internet-Draft, Libpcap, dump file format"> -<meta name="generator" content="xml2rfc v1.22 (http://xml.resource.org/)"> -<style type='text/css'> -<!-- - body { - font-family: verdana, charcoal, helvetica, arial, sans-serif; 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- font-size: x-small ; background-color: #000000; } - - A { font-weight: bold; } - A:link { color: #990000; background-color: transparent ; } - A:visited { color: #333333; background-color: transparent ; } - A:active { color: #333333; background-color: transparent ; } - - p { margin-left: 2em; margin-right: 2em; } - p.copyright { font-size: x-small ; } - p.toc { font-size: small ; font-weight: bold ; margin-left: 3em ;} - - span.emph { font-style: italic; } - span.strong { font-weight: bold; } - span.verb { font-family: "Courier New", Courier, monospace ; } - - ol.text { margin-left: 2em; margin-right: 2em; } - ul.text { margin-left: 2em; margin-right: 2em; } - li { margin-left: 3em; } - - pre { margin-left: 3em; color: #333333; background-color: transparent; - font-family: "Courier New", Courier, monospace ; font-size: small ; - } - - h3 { color: #333333; font-size: medium ; - font-family: helvetica, arial, sans-serif ; - background-color: transparent; } - h4 { font-size: small; font-family: helvetica, arial, sans-serif ; } - - table.bug { width: 30px ; height: 15px ; } - td.bug { color: #ffffff ; background-color: #990000 ; - text-align: center ; width: 30px ; height: 15px ; - } - td.bug A.link2 { color: #ffffff ; font-weight: bold; - text-decoration: none; - font-family: monaco, charcoal, geneva, "MS Sans Serif", helvetica, sans-serif; - font-size: x-small ; background-color: transparent } - - td.header { color: #ffffff; font-size: x-small ; - font-family: arial, helvetica, sans-serif; vertical-align: top; - background-color: #666666 ; width: 33% ; } - td.author { font-weight: bold; margin-left: 4em; font-size: x-small ; } - td.author-text { font-size: x-small; } - table.data { vertical-align: top ; border-collapse: collapse ; - border-style: solid solid solid solid ; - border-color: black black black black ; - font-size: small ; text-align: center ; } - table.data th { font-weight: bold ; - border-style: solid solid solid solid ; - border-color: black black black black ; } - table.data td { - border-style: solid solid solid solid ; - border-color: #333333 #333333 #333333 #333333 ; } - - hr { height: 1px } ---> -</style> -</head> -<body> -<table summary="layout" cellpadding="0" cellspacing="2" class="bug" align="right"><tr><td class="bug"><a href="#toc" class="link2"> TOC </a></td></tr></table> -<table summary="layout" width="66%" border="0" cellpadding="0" cellspacing="0"><tr><td><table summary="layout" width="100%" border="0" cellpadding="2" cellspacing="1"> -<tr><td class="header">Network Working Group</td><td class="header">L. Degioanni</td></tr> -<tr><td class="header">Internet-Draft</td><td class="header">F. Risso</td></tr> -<tr><td class="header">Expires: August 30, 2004</td><td class="header">Politecnico di Torino</td></tr> -<tr><td class="header"> </td><td class="header">March 2004</td></tr> -</table></td></tr></table> -<div align="right"><span class="title"><br />PCAP New Generation Dump File Format</span></div> -<div align="right"><span class="title"><br />pcap</span></div> - -<h3>Status of this Memo</h3> -<p> -This document is an Internet-Draft and is -in full conformance with all provisions of Section 10 of RFC2026.</p> -<p> -Internet-Drafts are working documents of the Internet Engineering -Task Force (IETF), its areas, and its working groups. -Note that other groups may also distribute working documents as -Internet-Drafts.</p> -<p> -Internet-Drafts are draft documents valid for a maximum of six months -and may be updated, replaced, or obsoleted by other documents at any time. -It is inappropriate to use Internet-Drafts as reference material or to cite -them other than as "work in progress."</p> -<p> -The list of current Internet-Drafts can be accessed at -<a href='http://www.ietf.org/ietf/1id-abstracts.txt'>http://www.ietf.org/ietf/1id-abstracts.txt</a>.</p> -<p> -The list of Internet-Draft Shadow Directories can be accessed at -<a href='http://www.ietf.org/shadow.html'>http://www.ietf.org/shadow.html</a>.</p> -<p> -This Internet-Draft will expire on August 30, 2004.</p> - -<h3>Copyright Notice</h3> -<p> -Copyright (C) The Internet Society (2004). All Rights Reserved.</p> - -<h3>Abstract</h3> - -<p>This document describes a format to dump captured packets on a file. This format is extensible and it is currently proposed for implementation in the libpcap/WinPcap packet capture library. -</p><a name="toc"></a><br /><hr /> -<h3>Table of Contents</h3> -<p class="toc"> -<a href="#anchor1">1.</a> -Objectives<br /> -<a href="#anchor2">2.</a> -General File Structure<br /> -<a href="#sectionblock">2.1</a> -General Block Structure<br /> -<a href="#anchor3">2.2</a> -Block Types<br /> -<a href="#anchor4">2.3</a> -Block Hierarchy and Precedence<br /> -<a href="#anchor5">2.4</a> -Data format<br /> -<a href="#anchor6">3.</a> -Block Definition<br /> -<a href="#sectionshb">3.1</a> -Section Header Block (mandatory)<br /> -<a href="#sectionidb">3.2</a> -Interface Description Block (mandatory)<br /> -<a href="#sectionpb">3.3</a> -Packet Block (optional)<br /> -<a href="#anchor7">3.4</a> -Simple Packet Block (optional)<br /> -<a href="#anchor8">3.5</a> -Name Resolution Block (optional)<br /> -<a href="#anchor9">3.6</a> -Interface Statistics Block (optional)<br /> -<a href="#sectionopt">4.</a> -Options<br /> -<a href="#anchor10">5.</a> -Experimental Blocks (deserved to a further investigation)<br /> -<a href="#anchor11">5.1</a> -Other Packet Blocks (experimental)<br /> -<a href="#anchor12">5.2</a> -Compression Block (experimental)<br /> -<a href="#anchor13">5.3</a> -Encryption Block (experimental)<br /> -<a href="#anchor14">5.4</a> -Fixed Length Block (experimental)<br /> -<a href="#anchor15">5.5</a> -Directory Block (experimental)<br /> -<a href="#anchor16">5.6</a> -Traffic Statistics and Monitoring Blocks (experimental)<br /> -<a href="#anchor17">5.7</a> -Event/Security Block (experimental)<br /> -<a href="#anchor18">6.</a> -Conclusions<br /> -<a href="#anchor19">7.</a> -Most important open issues<br /> -<a href="#rfc.copyright">§</a> -Intellectual Property and Copyright Statements<br /> -</p> -<br clear="all" /> - -<a name="anchor1"></a><br /><hr /> -<table summary="layout" cellpadding="0" cellspacing="2" class="bug" align="right"><tr><td class="bug"><a href="#toc" class="link2"> TOC </a></td></tr></table> -<a name="rfc.section.1"></a><h3>1. Objectives</h3> - -<p>The problem of exchanging packet traces becomes more and more critical every day; unfortunately, no standard solutions exist for this task right now. One of the most accepted packet interchange formats is the one defined by libpcap, which is rather old and does not fit for some of the nowadays applications especially in terms of extensibility. -</p> -<p>This document proposes a new format for dumping packet traces. The following goals are being pursued: -</p> -<ul class="text"> -<li>Extensibility: aside of some common functionalities, third parties should be able to enrich the information embedded in the file with proprietary extensions, which will be ignored by tools that are not able to understand them. -</li> -<li>Portability: a capture trace must contain all the information needed to read data independently from network, hardware and operating system of the machine that made the capture. -</li> -<li>Merge/Append data: it should be possible to add data at the end of a given file, and the resulting file must still be readable. -</li> -</ul> -<a name="anchor2"></a><br /><hr /> -<table summary="layout" cellpadding="0" cellspacing="2" class="bug" align="right"><tr><td class="bug"><a href="#toc" class="link2"> TOC </a></td></tr></table> -<a name="rfc.section.2"></a><h3>2. General File Structure</h3> - -<a name="rfc.section.2.1"></a><h4><a name="sectionblock">2.1</a> General Block Structure</h4> - -<p>A capture file is organized in blocks, that are appended one to another to form the file. All the blocks share a common format, which is shown in <a href="#formatblock">Figure 1</a>. -</p><br /><hr /> -<a name="formatblock"></a> -<pre> - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Block Type | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Block Total Length | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - / Block Body / - / /* variable length, aligned to 32 bits */ / - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Block Total Length | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -</pre> -<table border="0" cellpadding="0" cellspacing="2" align="center"><tr><td align="center"><font face="monaco, MS Sans Serif" size="1"><b> Basic block structure. </b></font><br /></td></tr></table><hr size="1" shade="0"> - -<p>The fields have the following meaning: -</p> -<ul class="text"> -<li>Block Type (32 bits): unique value that identifies the block. Values whose Most Significant Bit (MSB) is equal to 1 are reserved for local use. They allow to save private data to the file and to extend the file format. -</li> -<li>Block Total Length: total size of this block, in bytes. For instance, a block that does not have a body has a length of 12 bytes. -</li> -<li>Block Body: content of the block. -</li> -<li>Block Total Length: total size of this block, in bytes. This field is duplicated for permitting backward file navigation. -</li> -</ul> -<p>This structure, shared among all blocks, makes easy to process a file and to skip unneeded or unknown blocks. Blocks can be nested one inside the others (NOTE: needed?). Some of the blocks are mandatory, i.e. a dump file is not valid if they are not present, other are optional. -</p> -<p>The structure of the blocks allows to define other blocks if needed. A parser that does non understand them can simply ignore their content. -</p> -<a name="rfc.section.2.2"></a><h4><a name="anchor3">2.2</a> Block Types</h4> - -<p>The currently defined blocks are the following: -</p> -<ol class="text"> -<li>Section Header Block: it defines the most important characteristics of the capture file. -</li> -<li>Interface Description Block: it defines the most important characteristics of the interface(s) used for capturing traffic. -</li> -<li>Packet Block: it contains a single captured packet, or a portion of it. -</li> -<li>Simple Packet Block: it contains a single captured packet, or a portion of it, with only a minimal set of information about it. -</li> -<li>Name Resolution Block: it defines the mapping from numeric addresses present in the packet dump and the canonical name counterpart. -</li> -<li>Capture Statistics Block: it defines how to store some statistical data (e.g. packet dropped, etc) which can be useful to undestand the conditions in which the capture has been made. -</li> -<li>Compression Marker Block: TODO -</li> -<li>Encryption Marker Block: TODO -</li> -<li>Fixed Length Marker Block: TODO -</li> -</ol> -<p>The following blocks instead are considered interesting but the authors believe that they deserve more in-depth discussion before being defined: -</p> -<ol class="text"> -<li>Further Packet Blocks -</li> -<li>Directory Block -</li> -<li>Traffic Statistics and Monitoring Blocks -</li> -<li>Alert and Security Blocks -</li> -</ol> -<p>TODO Currently standardized Block Type codes are specified in Appendix 1. -</p> -<a name="rfc.section.2.3"></a><h4><a name="anchor4">2.3</a> Block Hierarchy and Precedence</h4> - -<p>The file must begin with a Section Header Block. However, more than one Section Header Block can be present on the dump, each one covering the data following it till the next one (or the end of file). A Section includes the data delimited by two Section Header Blocks (or by a Section Header Block and the end of the file), including the first Section Header Block. -</p> -<p>In case an application cannot read a Section because of different version number, it must skip everything until the next Section Header Block. Note that, in order to properly skip the blocks until the next section, all blocks must have the fields Type and Length at the beginning. This is a mandatory requirement that must be maintained in future versions of the block format. -</p> -<p><a href="#fssample-SHB">Figure 2</a> shows two valid files: the first has a typical configuration, with a single Section Header that covers the whole file. The second one contains three headers, and is normally the result of file concatenation. An application that understands only version 1.0 of the file format skips the intermediate section and restart processing the packets after the third Section Header. -</p><br /><hr /> -<a name="fssample-SHB"></a> -<pre> - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | SHB v1.0 | Data | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - Typical configuration with a single Section Header Block - - - |-- 1st Section --|-- 2nd Section --|-- 3rd Section --| - | | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | SHB v1.0 | Data | SHB V1.1 | Data | SHB V1.0 | Data | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - Configuration with three different Section Header Blocks -</pre> -<table border="0" cellpadding="0" cellspacing="2" align="center"><tr><td align="center"><font face="monaco, MS Sans Serif" size="1"><b> File structure example: the Section Header Block. </b></font><br /></td></tr></table><hr size="1" shade="0"> - -<p>NOTE: TO BE COMPLETED with some examples of other blocks -</p> -<a name="rfc.section.2.4"></a><h4><a name="anchor5">2.4</a> Data format</h4> - -<p>Data contained in each section will always be saved according to the characteristics (little endian / big endian) of the dumping machine. This refers to all fields that are saved as numbers and that span over two or more bytes. -</p> -<p>The approach of having each section saved in the native format of the generating host is more efficient because it avoids translation of data when reading / writing on the host itself, which is the most common case when generating/processing capture dumps. -</p> -<p>TODO Probably we have to specify something more here. Is what we're saying enough to avoid any kind of ambiguity?. -</p> -<a name="anchor6"></a><br /><hr /> -<table summary="layout" cellpadding="0" cellspacing="2" class="bug" align="right"><tr><td class="bug"><a href="#toc" class="link2"> TOC </a></td></tr></table> -<a name="rfc.section.3"></a><h3>3. Block Definition</h3> - -<p>This section details the format of the body of the blocks currently defined. -</p> -<a name="rfc.section.3.1"></a><h4><a name="sectionshb">3.1</a> Section Header Block (mandatory)</h4> - -<p>The Section Header Block is mandatory. It identifies the beginning of a section of the capture dump file. Its format is shown in <a href="#formatSHB">Figure 3</a>. -</p><br /><hr /> -<a name="formatSHB"></a> -<pre> - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Magic | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Major | Minor | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - / / - / Options (variable) / - / / - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -</pre> -<table border="0" cellpadding="0" cellspacing="2" align="center"><tr><td align="center"><font face="monaco, MS Sans Serif" size="1"><b> Section Header Block format. </b></font><br /></td></tr></table><hr size="1" shade="0"> - -<p>The meaning of the fields is: -</p> -<ul class="text"> -<li>Magic: magic number, whose value is the hexadecimal number 0x1A2B3C4D. This number can be used to distinguish section that have been saved on little-endian machines from the one saved on big-endian machines. -</li> -<li>Major: number of the current mayor version of the format. Current value is 1. -</li> -<li>Minor: number of the current minor version of the format. Current value is 0. -</li> -<li>Options: optionally, a list of options (formatted according to the rules defined in <a href="#sectionopt">Section 4</a>) can be present. -</li> -</ul> -<p>Aside form the options defined in <a href="#sectionopt">Section 4</a>, the following options are valid within this block: -</p><a name="InterfaceOptions1"></a> -<table class="data" align="center" border="1" cellpadding="2" cellspacing="2"> -<tr> -<th align="left" width="25%">Name</th> -<th align="left" width="25%">Code</th> -<th align="left" width="25%">Length</th> -<th align="left" width="25%">Description</th> -</tr> -<tr> -<td align="left">Hardware</td> -<td align="left">2</td> -<td align="left">variable</td> -<td align="left">An ascii string containing the description of the hardware used to create this section.</td> -</tr> -<tr> -<td align="left">Operating System</td> -<td align="left">3</td> -<td align="left">variable</td> -<td align="left">An ascii string containing the name of the operating system used to create this section.</td> -</tr> -<tr> -<td align="left">User Application</td> -<td align="left">3</td> -<td align="left">variable</td> -<td align="left">An ascii string containing the name of the application used to create this section.</td> -</tr> -</table> - -<p>The Section Header Block does not contain data but it rather identifies a list of blocks (interfaces, packets) that are logically correlated. This block does not contain any reference to the size of the section it is currently delimiting, therefore the reader cannot skip a whole section at once. In case a section must be skipped, the user has to repeatedly skip all the blocks contained within it; this makes the parsing of the file slower but it permits to append several capture dumps at the same file. -</p> -<a name="rfc.section.3.2"></a><h4><a name="sectionidb">3.2</a> Interface Description Block (mandatory)</h4> - -<p>The Interface Description Block is mandatory. This block is needed to specify the characteristics of the network interface on which the capture has been made. In order to properly associate the captured data to the corresponding interface, the Interface Description Block must be defined before any other block that uses it; therefore, this block is usually placed immediately after the Section Header Block. -</p> -<p>An Interface Description Block is valid only inside the section which it belongs to. The structure of a Interface Description Block is shown in <a href="#formatidb">Figure 4</a>. -</p><br /><hr /> -<a name="formatidb"></a> -<pre> - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Interface ID | LinkType | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | SnapLen | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - / / - / Options (variable) / - / / - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - </pre> -<table border="0" cellpadding="0" cellspacing="2" align="center"><tr><td align="center"><font face="monaco, MS Sans Serif" size="1"><b> Interface Description Block format. </b></font><br /></td></tr></table><hr size="1" shade="0"> - -<p>The meaning of the fields is: -</p> -<ul class="text"> -<li>Interface ID: a progressive number that identifies uniquely any interface inside current section. Two Interface Description Blocks can have the same Interface ID only if they are in different sections of the file. The Interface ID is referenced by the packet blocks. -</li> -<li>LinkType: a value that defines the link layer type of this interface. -</li> -<li>SnapLen: maximum number of bytes dumped from each packet. The portion of each packet that exceeds this value will not be stored in the file. -</li> -<li>Options: optionally, a list of options (formatted according to the rules defined in <a href="#sectionopt">Section 4</a>) can be present. -</li> -</ul> -<p>In addition to the options defined in <a href="#sectionopt">Section 4</a>, the following options are valid within this block: -</p><a name="InterfaceOptions2"></a> -<table class="data" align="center" border="1" cellpadding="2" cellspacing="2"> -<tr> -<th align="left" width="25%">Name</th> -<th align="left" width="25%">Code</th> -<th align="left" width="25%">Length</th> -<th align="left" width="25%">Description</th> -</tr> -<tr> -<td align="left">if_name</td> -<td align="left">2</td> -<td align="left">Variable</td> -<td align="left">Name of the device used to capture data.</td> -</tr> -<tr> -<td align="left">if_IPv4addr</td> -<td align="left">3</td> -<td align="left">8</td> -<td align="left">Interface network address and netmask.</td> -</tr> -<tr> -<td align="left">if_IPv6addr</td> -<td align="left">4</td> -<td align="left">17</td> -<td align="left">Interface network address and prefix length (stored in the last byte).</td> -</tr> -<tr> -<td align="left">if_MACaddr</td> -<td align="left">5</td> -<td align="left">6</td> -<td align="left">Interface Hardware MAC address (48 bits).</td> -</tr> -<tr> -<td align="left">if_EUIaddr</td> -<td align="left">6</td> -<td align="left">8</td> -<td align="left">Interface Hardware EUI address (64 bits), if available.</td> -</tr> -<tr> -<td align="left">if_speed</td> -<td align="left">7</td> -<td align="left">8</td> -<td align="left">Interface speed (in bps).</td> -</tr> -<tr> -<td align="left">if_tsaccur</td> -<td align="left">8</td> -<td align="left">1</td> -<td align="left">Precision of timestamps. If the Most Significant Bit is equal to zero, the remaining bits indicates the accuracy as as a negative power of 10 (e.g. 6 means microsecond accuracy). If the Most Significant Bit is equal to zero, the remaining bits indicates the accuracy as as negative power of 2 (e.g. 10 means 1/1024 of second). If this option is not present, a precision of 10^-6 is assumed.</td> -</tr> -<tr> -<td align="left">if_tzone</td> -<td align="left">9</td> -<td align="left">4</td> -<td align="left">Time zone for GMT support (TODO: specify better).</td> -</tr> -<tr> -<td align="left">if_flags</td> -<td align="left">10</td> -<td align="left">4</td> -<td align="left">Interface flags. (TODO: specify better. Possible flags: promiscuous, inbound/outbound, traffic filtered during capture).</td> -</tr> -<tr> -<td align="left">if_filter</td> -<td align="left">11</td> -<td align="left">variable</td> -<td align="left">The filter (e.g. "capture only TCP traffic") used to capture traffic. The first byte of the Option Data keeps a code of the filter used (e.g. if this is a libpcap string, or BPF bytecode, and more). More details about this format will be presented in Appendix XXX (TODO).</td> -</tr> -<tr> -<td align="left">if_opersystem</td> -<td align="left">12</td> -<td align="left">variable</td> -<td align="left">An ascii string containing the name of the operating system of the machine that hosts this interface. This can be different from the same information that can be contained by the Section Header Block (<a href="#sectionshb">Section 3.1</a>) because the capture can have been done on a remote machine.</td> -</tr> -</table> - -<a name="rfc.section.3.3"></a><h4><a name="sectionpb">3.3</a> Packet Block (optional)</h4> - -<p>A Packet Block is the standard container for storing the packets coming from the network. The Packet Block is optional because packets can be stored either by means of this block or the Simple Packet Block, which can be used to speed up dump generation. The format of a packet block is shown in <a href="#formatpb">Figure 5</a>. -</p><br /><hr /> -<a name="formatpb"></a> -<pre> - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Interface ID | Drops Count | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Timestamp (High) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Timestamp (Low) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Captured Len | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Packet Len | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | | - | Packet Data | - | | - | /* variable length, byte-aligned */ | - | | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - / / - / Options (variable) / - / / - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -</pre> -<table border="0" cellpadding="0" cellspacing="2" align="center"><tr><td align="center"><font face="monaco, MS Sans Serif" size="1"><b> Packet Block format. </b></font><br /></td></tr></table><hr size="1" shade="0"> - -<p>The Packet Block has the following fields: -</p> -<ul class="text"> -<li>Interface ID: Specifies the interface this packet comes from, and corresponds to the ID of one of the Interface Description Blocks present in this section of the file (see <a href="#formatidb">Figure 4</a>). -</li> -<li>Drops Count: a local drop counter. It specified the number of packets lost (by the interface and the operating system) between this packet and the preceding one. The value xFFFF (in hexadecimal) is reserved for those systems in which this information is not available. -</li> -<li>Timestamp (High): the most significative part of the timestamp. in standard Unix format, i.e. from 1/1/1970. -</li> -<li>Timestamp (Low): the less significative part of the timestamp. The way to interpret this field is specified by the 'ts_accur' option (see <a href="#formatidb">Figure 4</a>) of the Interface Description block referenced by this packet. If the Interface Description block does not contain a 'ts_accur' option, then this field is expressed in microseconds. -</li> -<li>Captured Len: number of bytes captured from the packet (i.e. the length of the Packet Data field). It will be the minimum value among the actual Packet Length and the snapshot length (defined in <a href="#formatidb">Figure 4</a>). -</li> -<li>Packet Len: actual length of the packet when it was transmitted on the network. Can be different from Captured Len if the user wants only a snapshot of the packet. -</li> -<li>Packet Data: the data coming from the network, including link-layer headers. The length of this field is Captured Len. The format of the link-layer headers depends on the LinkType field specified in the Interface Description Block (see <a href="#sectionidb">Section 3.2</a>) and it is specified in Appendix XXX (TODO). -</li> -<li>Options: optionally, a list of options (formatted according to the rules defined in <a href="#sectionopt">Section 4</a>) can be present. -</li> -</ul> -<p> -</p> -<a name="rfc.section.3.4"></a><h4><a name="anchor7">3.4</a> Simple Packet Block (optional)</h4> - -<p>The Simple Packet Block is a lightweight container for storing the packets coming from the network. Its presence is optional. -</p> -<p>A Simple Packet Block is similar to a Packet Block (see <a href="#sectionpb">Section 3.3</a>), but it is smaller, simpler to process and contains only a minimal set of information. This block is preferred to the standard Packet Block when performance or space occupation are critical factors, such as in sustained traffic dump applications. A capture file can contain both Packet Blocks and Simple Packet Blocks: for example, a capture tool could switch from Packet Blocks to Simple Packet Blocks when the hardware resources become critical. -</p> -<p>The Simple Packet Block does not contain the Interface ID field. Therefore, it must be assumed that all the Simple Packet Blocks have been captured on the interface previously specified in the Interface Description Block. -</p> -<p><a href="#formatpbs">Figure 6</a> shows the format of the Simple Packet Block. -</p><br /><hr /> -<a name="formatpbs"></a> -<pre> - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Packet Len | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | | - | Packet Data | - | | - | /* variable length, byte-aligned */ | - | | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - </pre> -<table border="0" cellpadding="0" cellspacing="2" align="center"><tr><td align="center"><font face="monaco, MS Sans Serif" size="1"><b> Simple Packet Block format. </b></font><br /></td></tr></table><hr size="1" shade="0"> - -<p>The Packet Block has the following fields: -</p> -<ul class="text"> -<li>Packet Len: actual length of the packet when it was transmitted on the network. Can be different from captured len if the packet has been truncated. -</li> -<li>Packet data: the data coming from the network, including link-layers headers. The length of this field can be derived from the field Block Total Length, present in the Block Header. -</li> -</ul> -<p>The Simple Packet Block does not contain the timestamp because this is one of the most costly operations on PCs. Additionally, there are applications that do not require it; e.g. an Intrusion Detection System is interested in packets, not in their timestamp. -</p> -<p>The Simple Packet Block is very efficient in term of disk space: a snapshot of length 100 bytes requires only 16 bytes of overhead, which corresponds to an efficiency of more than 86%. -</p> -<a name="rfc.section.3.5"></a><h4><a name="anchor8">3.5</a> Name Resolution Block (optional)</h4> - -<p>The Name Resolution Block is used to support the correlation of numeric addresses (present in the captured packets) and their corresponding canonical names and it is optional. Having the literal names saved in the file, this prevents the need of a name resolution in a delayed time, when the association between names and addresses can be different from the one in use at capture time. Moreover, The Name Resolution Block avoids the need of issuing a lot of DNS requests every time the trace capture is opened, and allows to have name resolution also when reading the capture with a machine not connected to the network. -</p> -<p>The format of the Name Resolution Block is shown in <a href="#formatnrb">Figure 7</a>. -</p><br /><hr /> -<a name="formatnrb"></a> -<pre> - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Record Type | Record Length | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Record Value | - | /* variable length, byte-aligned */ | - | + + + + + + + + + + + + + + + + + + + + + + + + + - | | | | | - +-+-+-+-+-+-+-+-+ + + + + + + + + + + + + + + + + + + + + + + + + - . . . other records . . . - | Record Type == end_of_recs | Record Length == 00 | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - / / - / Options (variable) / - / / - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - </pre> -<table border="0" cellpadding="0" cellspacing="2" align="center"><tr><td align="center"><font face="monaco, MS Sans Serif" size="1"><b> Name Resolution Block format. </b></font><br /></td></tr></table><hr size="1" shade="0"> - -<p>A Name Resolution Block is a zero-terminated list of records (in the TLV format), each of which contains an association between a network address and a name. There are three possible types of records: -</p><a name="nrrecords"></a> -<table class="data" align="center" border="1" cellpadding="2" cellspacing="2"> -<tr> -<th align="left" width="25%">Name</th> -<th align="left" width="25%">Code</th> -<th align="left" width="25%">Length</th> -<th align="left" width="25%">Description</th> -</tr> -<tr> -<td align="left">end_of_recs</td> -<td align="left">0</td> -<td align="left">0</td> -<td align="left">End of records</td> -</tr> -<tr> -<td align="left">ip4_rec</td> -<td align="left">1</td> -<td align="left">Variable</td> -<td align="left">Specifies an IPv4 address (contained in the first 4 bytes), followed by one or more zero-terminated strings containing the DNS entries for that address.</td> -</tr> -<tr> -<td align="left">ip6_rec</td> -<td align="left">1</td> -<td align="left">Variable</td> -<td align="left">Specifies an IPv6 address (contained in the first 16 bytes), followed by one or more zero-terminated strings containing the DNS entries for that address.</td> -</tr> -</table> - -<p>After the list or Name Resolution Records, optionally, a list of options (formatted according to the rules defined in <a href="#sectionopt">Section 4</a>) can be present. -</p> -<p>A Name Resolution Block is normally placed at the beginning of the file, but no assumptions can be taken about its position. Name Resolution Blocks can be added in a second time by tools that process the file, like network analyzers. -</p> -<p>In addiction to the options defined in <a href="#sectionopt">Section 4</a>, the following options are valid within this block: -</p><table class="data" align="center" border="1" cellpadding="2" cellspacing="2"> -<tr> -<th align="left" width="25%">Name</th> -<th align="left" width="25%">Code</th> -<th align="left" width="25%">Length</th> -<th align="left" width="25%">Description</th> -</tr> -<tr> -<td align="left">ns_dnsname</td> -<td align="left">2</td> -<td align="left">Variable</td> -<td align="left">An ascii string containing the name of the machine (DNS server) used to perform the name resolution.</td> -</tr> -</table> - -<a name="rfc.section.3.6"></a><h4><a name="anchor9">3.6</a> Interface Statistics Block (optional)</h4> - -<p>The Interface Statistics Block contains the capture statistics for a given interface and it is optional. The statistics are referred to the interface defined in the current Section identified by the Interface ID field. -</p> -<p>The format of the Interface Statistics Block is shown in <a href="#formatisb">Figure 8</a>. -</p><br /><hr /> -<a name="formatisb"></a> -<pre> - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | IfRecv | - | (high + low) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | IfDrop | - | (high + low) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | FilterAccept | - | (high + low) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | OSDrop | - | (high + low) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | UsrDelivered | - | (high + low) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Interface ID | Reserved | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - / / - / Options (variable) / - / / - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - </pre> -<table border="0" cellpadding="0" cellspacing="2" align="center"><tr><td align="center"><font face="monaco, MS Sans Serif" size="1"><b> Interface Statistics Block format. </b></font><br /></td></tr></table><hr size="1" shade="0"> - -<p>The fields have the following meaning: -</p> -<ul class="text"> -<li>IfRecv: number of packets received from the interface during the capture. This number is reported as a 64 bits value, in which the most significat bits are located in the first four bytes of the field. -</li> -<li>IfDrop: number of packets dropped by the interface during the capture due to lack of resources. -</li> -<li>FilterAccept: number of packets accepeted by filter during current capture. -</li> -<li>OSDrop: number of packets dropped by the operating system during the capture. -</li> -<li>UsrDelivered: number of packets delivered to the user. UsrDelivered can be different from the value 'FilterAccept - OSDropped' because some packets could still lay in the OS buffers when the capture ended. -</li> -<li>Interface ID: reference to an Interface Description Block. -</li> -<li>Reserved: Reserved to future use. -</li> -<li>Options: optionally, a list of options (formatted according to the rules defined in <a href="#sectionopt">Section 4</a>) can be present. -</li> -</ul> -<p>In addiction to the options defined in <a href="#sectionopt">Section 4</a>, the following options are valid within this block: -</p><table class="data" align="center" border="1" cellpadding="2" cellspacing="2"> -<tr> -<th align="left" width="25%">Name</th> -<th align="left" width="25%">Code</th> -<th align="left" width="25%">Length</th> -<th align="left" width="25%">Description</th> -</tr> -<tr> -<td align="left">isb_starttime</td> -<td align="left">2</td> -<td align="left">8</td> -<td align="left">Time in which the capture started; time will be stored in two blocks of four bytes each, containing the timestamp in seconds and nanoseconds.</td> -</tr> -<tr> -<td align="left">isb_endtime</td> -<td align="left">3</td> -<td align="left">8</td> -<td align="left">Time in which the capture started; time will be stored in two blocks of four bytes each, containing the timestamp in seconds and nanoseconds.</td> -</tr> -</table> - -<a name="sectionopt"></a><br /><hr /> -<table summary="layout" cellpadding="0" cellspacing="2" class="bug" align="right"><tr><td class="bug"><a href="#toc" class="link2"> TOC </a></td></tr></table> -<a name="rfc.section.4"></a><h3>4. Options</h3> - -<p>Almost all blocks have the possibility to embed optional fields. Optional fields can be used to insert some information that may be useful when reading data, but that it is not really needed for packet processing. Therefore, each tool can be either read the content of the optional fields (if any), or skip them at once. -</p> -<p>Skipping all the optional fields at once is straightforward because most of the blocks have a fixed length, therefore the field Block Length (present in the General Block Structure, see <a href="#sectionblock">Section 2.1</a>) can be used to skip everything till the next block. -</p> -<p>Options are a list of Type - Length - Value fields, each one containing a single value: -</p> -<ul class="text"> -<li>Option Type (2 bytes): it contains the code that specifies the type of the current TLV record. Option types whose Most Significant Bit is equal to one are reserved for local use; therefore, there is no guarantee that the code used is unique among all capture files (generated by other applications). In case of vendor-specific extensions that have to be identified uniquely, vendors must request an Option Code whose MSB is equal to zero. -</li> -<li>Option Length (2 bytes): it contains the length of the following 'Option Value' field. -</li> -<li>Option Value (variable length): it contains the value of the given option. The length of this field as been specified by the Option Length field. -</li> -</ul> -<p>Options may be repeated several times (e.g. an interface that has several IP addresses associated to it). The option list is terminated by a special code which is the 'End of Option'. -</p> -<p>The format of the optional fields is shown in <a href="#formatopt">Figure 9</a>. -</p><br /><hr /> -<a name="formatopt"></a> -<pre> - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Option Code | Option Length | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Option Value | - | /* variable length, byte-aligned */ | - | + + + + + + + + + + + + + + + + + + + + + + + + + - | / / / | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - / / - / . . . other options . . . / - / / - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Option Code == opt_endofopt | Option Length == 0 | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - </pre> -<table border="0" cellpadding="0" cellspacing="2" align="center"><tr><td align="center"><font face="monaco, MS Sans Serif" size="1"><b> Options format. </b></font><br /></td></tr></table><hr size="1" shade="0"> - -<p>The following codes can always be present in any optional field: -</p><table class="data" align="center" border="1" cellpadding="2" cellspacing="2"> -<tr> -<th align="left" width="25%">Name</th> -<th align="left" width="25%">Code</th> -<th align="left" width="25%">Length</th> -<th align="left" width="25%">Description</th> -</tr> -<tr> -<td align="left">opt_endofopt</td> -<td align="left">0</td> -<td align="left">0</td> -<td align="left">End of options: it is used to delimit the end of the optional fields. This block cannot be repeated within a given list of options.</td> -</tr> -<tr> -<td align="left">opt_comment</td> -<td align="left">1</td> -<td align="left">variable</td> -<td align="left">Comment: it is an ascii string containing a comment that is associated to the current block.</td> -</tr> -</table> - -<a name="anchor10"></a><br /><hr /> -<table summary="layout" cellpadding="0" cellspacing="2" class="bug" align="right"><tr><td class="bug"><a href="#toc" class="link2"> TOC </a></td></tr></table> -<a name="rfc.section.5"></a><h3>5. Experimental Blocks (deserved to a further investigation)</h3> - -<a name="rfc.section.5.1"></a><h4><a name="anchor11">5.1</a> Other Packet Blocks (experimental)</h4> - -<p>Can some other packet blocks (besides the two described in the previous paragraphs) be useful? -</p> -<a name="rfc.section.5.2"></a><h4><a name="anchor12">5.2</a> Compression Block (experimental)</h4> - -<p>The Compression Block is optional. A file can contain an arbitrary number of these blocks. A Compression Block, as the name says, is used to store compressed data. Its format is shown in <a href="#formatcb">Figure 10</a>. -</p><br /><hr /> -<a name="formatcb"></a> -<pre> - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Compr. Type | | - +-+-+-+-+-+-+-+-+ | - | | - | Compressed Data | - | | - | /* variable length, byte-aligned */ | - | | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - </pre> -<table border="0" cellpadding="0" cellspacing="2" align="center"><tr><td align="center"><font face="monaco, MS Sans Serif" size="1"><b> Compression Block format. </b></font><br /></td></tr></table><hr size="1" shade="0"> - -<p>The fields have the following meaning: -</p> -<ul class="text"> -<li>Compression Type: specifies the compression algorithm. Possible values for this field are 0 (uncompressed), 1 (Lempel Ziv), 2 (Gzip), other?? Probably some kind of dumb and fast compression algorithm could be effective with some types of traffic (for example web), but which? -</li> -<li>Compressed Data: data of this block. Once decompressed, it is made of other blocks. -</li> -</ul> -<a name="rfc.section.5.3"></a><h4><a name="anchor13">5.3</a> Encryption Block (experimental)</h4> - -<p>The Encryption Block is optional. A file can contain an arbitrary number of these blocks. An Encryption Block is used to sotre encrypted data. Its format is shown in <a href="#formateb">Figure 11</a>. -</p><br /><hr /> -<a name="formateb"></a> -<pre> - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Encr. Type | | - +-+-+-+-+-+-+-+-+ | - | | - | Compressed Data | - | | - | /* variable length, byte-aligned */ | - | | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - </pre> -<table border="0" cellpadding="0" cellspacing="2" align="center"><tr><td align="center"><font face="monaco, MS Sans Serif" size="1"><b> Encryption Block format. </b></font><br /></td></tr></table><hr size="1" shade="0"> - -<p>The fields have the following meaning: -</p> -<ul class="text"> -<li>Compression Type: specifies the encryption algorithm. Possible values for this field are ??? NOTE: this block should probably contain other fields, depending on the encryption algorithm. To be define precisely. -</li> -<li>Encrypted Data: data of this block. Once decripted, it consists of other blocks. -</li> -</ul> -<a name="rfc.section.5.4"></a><h4><a name="anchor14">5.4</a> Fixed Length Block (experimental)</h4> - -<p>The Fixed Length Block is optional. A file can contain an arbitrary number of these blocks. A Fixed Length Block can be used to optimize the access to the file. Its format is shown in <a href="#formatflm">Figure 12</a>. -A Fixed Length Block stores records with constant size. It contains a set of Blocks (normally Packet Blocks or Simple Packet Blocks), of wihich it specifies the size. Knowing this size a priori helps to scan the file and to load some portions of it without truncating a block, and is particularly useful with cell-based networks like ATM. -</p><br /><hr /> -<a name="formatflm"></a> -<pre> - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Cell Size | | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | - | | - | Fixed Size Data | - | | - | /* variable length, byte-aligned */ | - | | - | | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - </pre> -<table border="0" cellpadding="0" cellspacing="2" align="center"><tr><td align="center"><font face="monaco, MS Sans Serif" size="1"><b> Fixed Length Block format. </b></font><br /></td></tr></table><hr size="1" shade="0"> - -<p>The fields have the following meaning: -</p> -<ul class="text"> -<li>Cell size: the size of the blocks contained in the data field. -</li> -<li>Fixed Size Data: data of this block. -</li> -</ul> -<a name="rfc.section.5.5"></a><h4><a name="anchor15">5.5</a> Directory Block (experimental)</h4> - -<p>If present, this block contains the following information: -</p> -<ul class="text"> -<li>number of indexed packets (N) -</li> -<li>table with position and length of any indexed packet (N entries) -</li> -</ul> -<p>A directory block must be followed by at least N packets, otherwise it must be considered invalid. It can be used to efficiently load portions of the file to memory and to support operations on memory mapped files. This block can be added by tools like network analyzers as a consequence of file processing. -</p> -<a name="rfc.section.5.6"></a><h4><a name="anchor16">5.6</a> Traffic Statistics and Monitoring Blocks (experimental)</h4> - -<p>One or more blocks could be defined to contain network statistics or traffic monitoring information. They could be use to store data collected from RMON or Netflow probes, or from other network monitoring tools. -</p> -<a name="rfc.section.5.7"></a><h4><a name="anchor17">5.7</a> Event/Security Block (experimental)</h4> - -<p>This block could be used to store events. Events could contain generic information (for example network load over 50%, server down...) or security alerts. An event could be: -</p> -<ul class="text"> -<li>skipped, if the application doesn't know how to do with it -</li> -<li>processed independently by the packets. In other words, the applications skips the packets and processes only the alerts -</li> -<li>processed in relation to packets: for example, a security tool could load only the packets of the file that are near a security alert; a monitorg tool could skip the packets captured while the server was down. -</li> -</ul> -<a name="anchor18"></a><br /><hr /> -<table summary="layout" cellpadding="0" cellspacing="2" class="bug" align="right"><tr><td class="bug"><a href="#toc" class="link2"> TOC </a></td></tr></table> -<a name="rfc.section.6"></a><h3>6. Conclusions</h3> - -<p>The file format proposed in this document should be very versatile and satisfy a wide range of applications. -In the simplest case, it can contain a raw dump of the network data, made of a series of Simple Packet Blocks. -In the most complex case, it can be used as a repository for heterogeneous information. -In every case, the file remains easy to parse and an application can always skip the data it is not interested in; at the same time, different applications can share the file, and each of them can benfit of the information produced by the others. -Two or more files can be concatenated obtaining another valid file. -</p> -<a name="anchor19"></a><br /><hr /> -<table summary="layout" cellpadding="0" cellspacing="2" class="bug" align="right"><tr><td class="bug"><a href="#toc" class="link2"> TOC </a></td></tr></table> -<a name="rfc.section.7"></a><h3>7. Most important open issues</h3> - -<ul class="text"> -<li>Data, in the file, must be byte or word aligned? Currently, the structure of this document is not consistent with respect to this point. -</li> -</ul><a name="rfc.copyright"></a><br /><hr /> -<table summary="layout" cellpadding="0" cellspacing="2" class="bug" align="right"><tr><td class="bug"><a href="#toc" class="link2"> TOC </a></td></tr></table> -<h3>Intellectual Property Statement</h3> -<p class='copyright'> -The IETF takes no position regarding the validity or scope of -any intellectual property or other rights that might be claimed -to pertain to the implementation or use of the technology -described in this document or the extent to which any license -under such rights might or might not be available; neither does -it represent that it has made any effort to identify any such -rights. Information on the IETF's procedures with respect to -rights in standards-track and standards-related documentation -can be found in BCP-11. Copies of claims of rights made -available for publication and any assurances of licenses to -be made available, or the result of an attempt made -to obtain a general license or permission for the use of such -proprietary rights by implementors or users of this -specification can be obtained from the IETF Secretariat.</p> -<p class='copyright'> -The IETF invites any interested party to bring to its -attention any copyrights, patents or patent applications, or -other proprietary rights which may cover technology that may be -required to practice this standard. Please address the -information to the IETF Executive Director.</p> -<h3>Full Copyright Statement</h3> -<p class='copyright'> -Copyright (C) The Internet Society (2004). All Rights Reserved.</p> -<p class='copyright'> -This document and translations of it may be copied and furnished to -others, and derivative works that comment on or otherwise explain it -or assist in its implementation may be prepared, copied, published and -distributed, in whole or in part, without restriction of any kind, -provided that the above copyright notice and this paragraph are -included on all such copies and derivative works. However, this -document itself may not be modified in any way, such as by removing -the copyright notice or references to the Internet Society or other -Internet organizations, except as needed for the purpose of -developing Internet standards in which case the procedures for -copyrights defined in the Internet Standards process must be -followed, or as required to translate it into languages other than -English.</p> -<p class='copyright'> -The limited permissions granted above are perpetual and will not be -revoked by the Internet Society or its successors or assignees.</p> -<p class='copyright'> -This document and the information contained herein is provided on an -"AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING -TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING -BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION -HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF -MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.</p> -<h3>Acknowledgment</h3> -<p class='copyright'> -Funding for the RFC Editor function is currently provided by the -Internet Society.</p> -</body></html> diff --git a/contrib/libpcap/doc/pcap.txt b/contrib/libpcap/doc/pcap.txt deleted file mode 100644 index cfa6645..0000000 --- a/contrib/libpcap/doc/pcap.txt +++ /dev/null @@ -1,1680 +0,0 @@ - - -Network Working Group L. Degioanni -Internet-Draft F. Risso -Expires: August 30, 2004 Politecnico di Torino - March 2004 - - - PCAP New Generation Dump File Format - pcap - -Status of this Memo - - This document is an Internet-Draft and is in full conformance with - all provisions of Section 10 of RFC2026. - - Internet-Drafts are working documents of the Internet Engineering - Task Force (IETF), its areas, and its working groups. Note that other - groups may also distribute working documents as Internet-Drafts. - - Internet-Drafts are draft documents valid for a maximum of six months - and may be updated, replaced, or obsoleted by other documents at any - time. It is inappropriate to use Internet-Drafts as reference - material or to cite them other than as "work in progress." - - The list of current Internet-Drafts can be accessed at http:// - www.ietf.org/ietf/1id-abstracts.txt. - - The list of Internet-Draft Shadow Directories can be accessed at - http://www.ietf.org/shadow.html. - - This Internet-Draft will expire on August 30, 2004. - -Copyright Notice - - Copyright (C) The Internet Society (2004). All Rights Reserved. - -Abstract - - This document describes a format to dump captured packets on a file. - This format is extensible and it is currently proposed for - implementation in the libpcap/WinPcap packet capture library. - - - - - - - - - - - - -Degioanni & Risso Expires August 30, 2004 [Page 1] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - -Table of Contents - - 1. Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 2. General File Structure . . . . . . . . . . . . . . . . . . . . 4 - 2.1 General Block Structure . . . . . . . . . . . . . . . . . . . 4 - 2.2 Block Types . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 2.3 Block Hierarchy and Precedence . . . . . . . . . . . . . . . . 5 - 2.4 Data format . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 3. Block Definition . . . . . . . . . . . . . . . . . . . . . . . 8 - 3.1 Section Header Block (mandatory) . . . . . . . . . . . . . . . 8 - 3.2 Interface Description Block (mandatory) . . . . . . . . . . . 9 - 3.3 Packet Block (optional) . . . . . . . . . . . . . . . . . . . 13 - 3.4 Simple Packet Block (optional) . . . . . . . . . . . . . . . . 15 - 3.5 Name Resolution Block (optional) . . . . . . . . . . . . . . . 16 - 3.6 Interface Statistics Block (optional) . . . . . . . . . . . . 18 - 4. Options . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 - 5. Experimental Blocks (deserved to a further investigation) . . 23 - 5.1 Other Packet Blocks (experimental) . . . . . . . . . . . . . . 23 - 5.2 Compression Block (experimental) . . . . . . . . . . . . . . . 23 - 5.3 Encryption Block (experimental) . . . . . . . . . . . . . . . 23 - 5.4 Fixed Length Block (experimental) . . . . . . . . . . . . . . 24 - 5.5 Directory Block (experimental) . . . . . . . . . . . . . . . . 25 - 5.6 Traffic Statistics and Monitoring Blocks (experimental) . . . 25 - 5.7 Event/Security Block (experimental) . . . . . . . . . . . . . 25 - 6. Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . 27 - 7. Most important open issues . . . . . . . . . . . . . . . . . . 28 - Intellectual Property and Copyright Statements . . . . . . . . 29 - - - - - - - - - - - - - - - - - - - - - - - - -Degioanni & Risso Expires August 30, 2004 [Page 2] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - -1. Objectives - - The problem of exchanging packet traces becomes more and more - critical every day; unfortunately, no standard solutions exist for - this task right now. One of the most accepted packet interchange - formats is the one defined by libpcap, which is rather old and does - not fit for some of the nowadays applications especially in terms of - extensibility. - - This document proposes a new format for dumping packet traces. The - following goals are being pursued: - - o Extensibility: aside of some common functionalities, third parties - should be able to enrich the information embedded in the file with - proprietary extensions, which will be ignored by tools that are - not able to understand them. - - o Portability: a capture trace must contain all the information - needed to read data independently from network, hardware and - operating system of the machine that made the capture. - - o Merge/Append data: it should be possible to add data at the end of - a given file, and the resulting file must still be readable. - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Degioanni & Risso Expires August 30, 2004 [Page 3] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - -2. General File Structure - -2.1 General Block Structure - - A capture file is organized in blocks, that are appended one to - another to form the file. All the blocks share a common format, which - is shown in Figure 1. - - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Block Type | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Block Total Length | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - / Block Body / - / /* variable length, aligned to 32 bits */ / - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Block Total Length | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - - Figure 1: Basic block structure. - - The fields have the following meaning: - - o Block Type (32 bits): unique value that identifies the block. - Values whose Most Significant Bit (MSB) is equal to 1 are reserved - for local use. They allow to save private data to the file and to - extend the file format. - - o Block Total Length: total size of this block, in bytes. For - instance, a block that does not have a body has a length of 12 - bytes. - - o Block Body: content of the block. - - o Block Total Length: total size of this block, in bytes. This field - is duplicated for permitting backward file navigation. - - This structure, shared among all blocks, makes easy to process a file - and to skip unneeded or unknown blocks. Blocks can be nested one - inside the others (NOTE: needed?). Some of the blocks are mandatory, - i.e. a dump file is not valid if they are not present, other are - optional. - - The structure of the blocks allows to define other blocks if needed. - A parser that does non understand them can simply ignore their - content. - - - -Degioanni & Risso Expires August 30, 2004 [Page 4] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - -2.2 Block Types - - The currently defined blocks are the following: - - 1. Section Header Block: it defines the most important - characteristics of the capture file. - - 2. Interface Description Block: it defines the most important - characteristics of the interface(s) used for capturing traffic. - - 3. Packet Block: it contains a single captured packet, or a portion - of it. - - 4. Simple Packet Block: it contains a single captured packet, or a - portion of it, with only a minimal set of information about it. - - 5. Name Resolution Block: it defines the mapping from numeric - addresses present in the packet dump and the canonical name - counterpart. - - 6. Capture Statistics Block: it defines how to store some - statistical data (e.g. packet dropped, etc) which can be useful - to undestand the conditions in which the capture has been made. - - 7. Compression Marker Block: TODO - - 8. Encryption Marker Block: TODO - - 9. Fixed Length Marker Block: TODO - - The following blocks instead are considered interesting but the - authors believe that they deserve more in-depth discussion before - being defined: - - 1. Further Packet Blocks - - 2. Directory Block - - 3. Traffic Statistics and Monitoring Blocks - - 4. Alert and Security Blocks - - TODO Currently standardized Block Type codes are specified in - Appendix 1. - -2.3 Block Hierarchy and Precedence - - The file must begin with a Section Header Block. However, more than - - - -Degioanni & Risso Expires August 30, 2004 [Page 5] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - - one Section Header Block can be present on the dump, each one - covering the data following it till the next one (or the end of - file). A Section includes the data delimited by two Section Header - Blocks (or by a Section Header Block and the end of the file), - including the first Section Header Block. - - In case an application cannot read a Section because of different - version number, it must skip everything until the next Section Header - Block. Note that, in order to properly skip the blocks until the next - section, all blocks must have the fields Type and Length at the - beginning. This is a mandatory requirement that must be maintained in - future versions of the block format. - - Figure 2 shows two valid files: the first has a typical - configuration, with a single Section Header that covers the whole - file. The second one contains three headers, and is normally the - result of file concatenation. An application that understands only - version 1.0 of the file format skips the intermediate section and - restart processing the packets after the third Section Header. - - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | SHB v1.0 | Data | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - Typical configuration with a single Section Header Block - - - |-- 1st Section --|-- 2nd Section --|-- 3rd Section --| - | | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | SHB v1.0 | Data | SHB V1.1 | Data | SHB V1.0 | Data | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - Configuration with three different Section Header Blocks - - Figure 2: File structure example: the Section Header Block. - - NOTE: TO BE COMPLETED with some examples of other blocks - -2.4 Data format - - Data contained in each section will always be saved according to the - characteristics (little endian / big endian) of the dumping machine. - This refers to all fields that are saved as numbers and that span - over two or more bytes. - - The approach of having each section saved in the native format of the - generating host is more efficient because it avoids translation of - data when reading / writing on the host itself, which is the most - common case when generating/processing capture dumps. - - - -Degioanni & Risso Expires August 30, 2004 [Page 6] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - - TODO Probably we have to specify something more here. Is what we're - saying enough to avoid any kind of ambiguity?. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Degioanni & Risso Expires August 30, 2004 [Page 7] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - -3. Block Definition - - This section details the format of the body of the blocks currently - defined. - -3.1 Section Header Block (mandatory) - - The Section Header Block is mandatory. It identifies the beginning of - a section of the capture dump file. Its format is shown in Figure 3. - - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Magic | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Major | Minor | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - / / - / Options (variable) / - / / - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - - Figure 3: Section Header Block format. - - The meaning of the fields is: - - o Magic: magic number, whose value is the hexadecimal number - 0x1A2B3C4D. This number can be used to distinguish section that - have been saved on little-endian machines from the one saved on - big-endian machines. - - o Major: number of the current mayor version of the format. Current - value is 1. - - o Minor: number of the current minor version of the format. Current - value is 0. - - o Options: optionally, a list of options (formatted according to the - rules defined in Section 4) can be present. - - Aside form the options defined in Section 4, the following options - are valid within this block: - - +----------------+----------------+----------------+----------------+ - | Name | Code | Length | Description | - +----------------+----------------+----------------+----------------+ - | Hardware | 2 | variable | An ascii | - | | | | string | - - - -Degioanni & Risso Expires August 30, 2004 [Page 8] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - - | | | | containing the | - | | | | description of | - | | | | the hardware | - | | | | used to create | - | | | | this section. | - | | | | | - | Operating | 3 | variable | An ascii | - | System | | | string | - | | | | containing the | - | | | | name of the | - | | | | operating | - | | | | system used to | - | | | | create this | - | | | | section. | - | | | | | - | User | 3 | variable | An ascii | - | Application | | | string | - | | | | containing the | - | | | | name of the | - | | | | application | - | | | | used to create | - | | | | this section. | - +----------------+----------------+----------------+----------------+ - - Table 1 - - The Section Header Block does not contain data but it rather - identifies a list of blocks (interfaces, packets) that are logically - correlated. This block does not contain any reference to the size of - the section it is currently delimiting, therefore the reader cannot - skip a whole section at once. In case a section must be skipped, the - user has to repeatedly skip all the blocks contained within it; this - makes the parsing of the file slower but it permits to append several - capture dumps at the same file. - -3.2 Interface Description Block (mandatory) - - The Interface Description Block is mandatory. This block is needed to - specify the characteristics of the network interface on which the - capture has been made. In order to properly associate the captured - data to the corresponding interface, the Interface Description Block - must be defined before any other block that uses it; therefore, this - block is usually placed immediately after the Section Header Block. - - An Interface Description Block is valid only inside the section which - it belongs to. The structure of a Interface Description Block is - shown in Figure 4. - - - - -Degioanni & Risso Expires August 30, 2004 [Page 9] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Interface ID | LinkType | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | SnapLen | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - / / - / Options (variable) / - / / - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - - Figure 4: Interface Description Block format. - - The meaning of the fields is: - - o Interface ID: a progressive number that identifies uniquely any - interface inside current section. Two Interface Description Blocks - can have the same Interface ID only if they are in different - sections of the file. The Interface ID is referenced by the packet - blocks. - - o LinkType: a value that defines the link layer type of this - interface. - - o SnapLen: maximum number of bytes dumped from each packet. The - portion of each packet that exceeds this value will not be stored - in the file. - - o Options: optionally, a list of options (formatted according to the - rules defined in Section 4) can be present. - - In addition to the options defined in Section 4, the following - options are valid within this block: - - +----------------+----------------+----------------+----------------+ - | Name | Code | Length | Description | - +----------------+----------------+----------------+----------------+ - | if_name | 2 | Variable | Name of the | - | | | | device used to | - | | | | capture data. | - | | | | | - | if_IPv4addr | 3 | 8 | Interface | - | | | | network | - | | | | address and | - | | | | netmask. | - | | | | | - | if_IPv6addr | 4 | 17 | Interface | - - - -Degioanni & Risso Expires August 30, 2004 [Page 10] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - - | | | | network | - | | | | address and | - | | | | prefix length | - | | | | (stored in the | - | | | | last byte). | - | | | | | - | if_MACaddr | 5 | 6 | Interface | - | | | | Hardware MAC | - | | | | address (48 | - | | | | bits). | - | | | | | - | if_EUIaddr | 6 | 8 | Interface | - | | | | Hardware EUI | - | | | | address (64 | - | | | | bits), if | - | | | | available. | - | | | | | - | if_speed | 7 | 8 | Interface | - | | | | speed (in | - | | | | bps). | - | | | | | - | if_tsaccur | 8 | 1 | Precision of | - | | | | timestamps. If | - | | | | the Most | - | | | | Significant | - | | | | Bit is equal | - | | | | to zero, the | - | | | | remaining bits | - | | | | indicates the | - | | | | accuracy as as | - | | | | a negative | - | | | | power of 10 | - | | | | (e.g. 6 means | - | | | | microsecond | - | | | | accuracy). If | - | | | | the Most | - | | | | Significant | - | | | | Bit is equal | - | | | | to zero, the | - | | | | remaining bits | - | | | | indicates the | - | | | | accuracy as as | - | | | | negative power | - | | | | of 2 (e.g. 10 | - | | | | means 1/1024 | - | | | | of second). If | - | | | | this option is | - | | | | not present, a | - - - -Degioanni & Risso Expires August 30, 2004 [Page 11] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - - | | | | precision of | - | | | | 10^-6 is | - | | | | assumed. | - | | | | | - | if_tzone | 9 | 4 | Time zone for | - | | | | GMT support | - | | | | (TODO: specify | - | | | | better). | - | | | | | - | if_flags | 10 | 4 | Interface | - | | | | flags. (TODO: | - | | | | specify | - | | | | better. | - | | | | Possible | - | | | | flags: | - | | | | promiscuous, | - | | | | inbound/outbou | - | | | | nd, traffic | - | | | | filtered | - | | | | during | - | | | | capture). | - | | | | | - | if_filter | 11 | variable | The filter | - | | | | (e.g. "capture | - | | | | only TCP | - | | | | traffic") used | - | | | | to capture | - | | | | traffic. The | - | | | | first byte of | - | | | | the Option | - | | | | Data keeps a | - | | | | code of the | - | | | | filter used | - | | | | (e.g. if this | - | | | | is a libpcap | - | | | | string, or BPF | - | | | | bytecode, and | - | | | | more). More | - | | | | details about | - | | | | this format | - | | | | will be | - | | | | presented in | - | | | | Appendix XXX | - | | | | (TODO). | - | | | | | - | if_opersystem | 12 | variable | An ascii | - | | | | string | - | | | | containing the | - - - -Degioanni & Risso Expires August 30, 2004 [Page 12] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - - | | | | name of the | - | | | | operating | - | | | | system of the | - | | | | machine that | - | | | | hosts this | - | | | | interface. | - | | | | This can be | - | | | | different from | - | | | | the same | - | | | | information | - | | | | that can be | - | | | | contained by | - | | | | the Section | - | | | | Header Block | - | | | | (Section 3.1) | - | | | | because the | - | | | | capture can | - | | | | have been done | - | | | | on a remote | - | | | | machine. | - +----------------+----------------+----------------+----------------+ - - Table 2 - - -3.3 Packet Block (optional) - - A Packet Block is the standard container for storing the packets - coming from the network. The Packet Block is optional because packets - can be stored either by means of this block or the Simple Packet - Block, which can be used to speed up dump generation. The format of a - packet block is shown in Figure 5. - - - - - - - - - - - - - - - - - - - -Degioanni & Risso Expires August 30, 2004 [Page 13] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Interface ID | Drops Count | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Timestamp (High) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Timestamp (Low) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Captured Len | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Packet Len | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | | - | Packet Data | - | | - | /* variable length, byte-aligned */ | - | | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - / / - / Options (variable) / - / / - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - - Figure 5: Packet Block format. - - The Packet Block has the following fields: - - o Interface ID: Specifies the interface this packet comes from, and - corresponds to the ID of one of the Interface Description Blocks - present in this section of the file (see Figure 4). - - o Drops Count: a local drop counter. It specified the number of - packets lost (by the interface and the operating system) between - this packet and the preceding one. The value xFFFF (in - hexadecimal) is reserved for those systems in which this - information is not available. - - o Timestamp (High): the most significative part of the timestamp. in - standard Unix format, i.e. from 1/1/1970. - - o Timestamp (Low): the less significative part of the timestamp. The - way to interpret this field is specified by the 'ts_accur' option - (see Figure 4) of the Interface Description block referenced by - this packet. If the Interface Description block does not contain a - 'ts_accur' option, then this field is expressed in microseconds. - - o Captured Len: number of bytes captured from the packet (i.e. the - - - -Degioanni & Risso Expires August 30, 2004 [Page 14] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - - length of the Packet Data field). It will be the minimum value - among the actual Packet Length and the snapshot length (defined in - Figure 4). - - o Packet Len: actual length of the packet when it was transmitted on - the network. Can be different from Captured Len if the user wants - only a snapshot of the packet. - - o Packet Data: the data coming from the network, including - link-layer headers. The length of this field is Captured Len. The - format of the link-layer headers depends on the LinkType field - specified in the Interface Description Block (see Section 3.2) and - it is specified in Appendix XXX (TODO). - - o Options: optionally, a list of options (formatted according to the - rules defined in Section 4) can be present. - - -3.4 Simple Packet Block (optional) - - The Simple Packet Block is a lightweight container for storing the - packets coming from the network. Its presence is optional. - - A Simple Packet Block is similar to a Packet Block (see Section 3.3), - but it is smaller, simpler to process and contains only a minimal set - of information. This block is preferred to the standard Packet Block - when performance or space occupation are critical factors, such as in - sustained traffic dump applications. A capture file can contain both - Packet Blocks and Simple Packet Blocks: for example, a capture tool - could switch from Packet Blocks to Simple Packet Blocks when the - hardware resources become critical. - - The Simple Packet Block does not contain the Interface ID field. - Therefore, it must be assumed that all the Simple Packet Blocks have - been captured on the interface previously specified in the Interface - Description Block. - - Figure 6 shows the format of the Simple Packet Block. - - - - - - - - - - - - - -Degioanni & Risso Expires August 30, 2004 [Page 15] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Packet Len | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | | - | Packet Data | - | | - | /* variable length, byte-aligned */ | - | | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - - Figure 6: Simple Packet Block format. - - The Packet Block has the following fields: - - o Packet Len: actual length of the packet when it was transmitted on - the network. Can be different from captured len if the packet has - been truncated. - - o Packet data: the data coming from the network, including - link-layers headers. The length of this field can be derived from - the field Block Total Length, present in the Block Header. - - The Simple Packet Block does not contain the timestamp because this - is one of the most costly operations on PCs. Additionally, there are - applications that do not require it; e.g. an Intrusion Detection - System is interested in packets, not in their timestamp. - - The Simple Packet Block is very efficient in term of disk space: a - snapshot of length 100 bytes requires only 16 bytes of overhead, - which corresponds to an efficiency of more than 86%. - -3.5 Name Resolution Block (optional) - - The Name Resolution Block is used to support the correlation of - numeric addresses (present in the captured packets) and their - corresponding canonical names and it is optional. Having the literal - names saved in the file, this prevents the need of a name resolution - in a delayed time, when the association between names and addresses - can be different from the one in use at capture time. Moreover, The - Name Resolution Block avoids the need of issuing a lot of DNS - requests every time the trace capture is opened, and allows to have - name resolution also when reading the capture with a machine not - connected to the network. - - The format of the Name Resolution Block is shown in Figure 7. - - - - -Degioanni & Risso Expires August 30, 2004 [Page 16] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Record Type | Record Length | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Record Value | - | /* variable length, byte-aligned */ | - | + + + + + + + + + + + + + + + + + + + + + + + + + - | | | | | - +-+-+-+-+-+-+-+-+ + + + + + + + + + + + + + + + + + + + + + + + + - . . . other records . . . - | Record Type == end_of_recs | Record Length == 00 | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - / / - / Options (variable) / - / / - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - - Figure 7: Name Resolution Block format. - - A Name Resolution Block is a zero-terminated list of records (in the - TLV format), each of which contains an association between a network - address and a name. There are three possible types of records: - - +----------------+----------------+----------------+----------------+ - | Name | Code | Length | Description | - +----------------+----------------+----------------+----------------+ - | end_of_recs | 0 | 0 | End of records | - | | | | | - | ip4_rec | 1 | Variable | Specifies an | - | | | | IPv4 address | - | | | | (contained in | - | | | | the first 4 | - | | | | bytes), | - | | | | followed by | - | | | | one or more | - | | | | zero-terminate | - | | | | d strings | - | | | | containing the | - | | | | DNS entries | - | | | | for that | - | | | | address. | - | | | | | - | ip6_rec | 1 | Variable | Specifies an | - | | | | IPv6 address | - | | | | (contained in | - | | | | the first 16 | - | | | | bytes), | - - - -Degioanni & Risso Expires August 30, 2004 [Page 17] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - - | | | | followed by | - | | | | one or more | - | | | | zero-terminate | - | | | | d strings | - | | | | containing the | - | | | | DNS entries | - | | | | for that | - | | | | address. | - +----------------+----------------+----------------+----------------+ - - Table 3 - - After the list or Name Resolution Records, optionally, a list of - options (formatted according to the rules defined in Section 4) can - be present. - - A Name Resolution Block is normally placed at the beginning of the - file, but no assumptions can be taken about its position. Name - Resolution Blocks can be added in a second time by tools that process - the file, like network analyzers. - - In addiction to the options defined in Section 4, the following - options are valid within this block: - - +----------------+----------------+----------------+----------------+ - | Name | Code | Length | Description | - +----------------+----------------+----------------+----------------+ - | ns_dnsname | 2 | Variable | An ascii | - | | | | string | - | | | | containing the | - | | | | name of the | - | | | | machine (DNS | - | | | | server) used | - | | | | to perform the | - | | | | name | - | | | | resolution. | - +----------------+----------------+----------------+----------------+ - - -3.6 Interface Statistics Block (optional) - - The Interface Statistics Block contains the capture statistics for a - given interface and it is optional. The statistics are referred to - the interface defined in the current Section identified by the - Interface ID field. - - The format of the Interface Statistics Block is shown in Figure 8. - - - - -Degioanni & Risso Expires August 30, 2004 [Page 18] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | IfRecv | - | (high + low) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | IfDrop | - | (high + low) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | FilterAccept | - | (high + low) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | OSDrop | - | (high + low) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | UsrDelivered | - | (high + low) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Interface ID | Reserved | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - / / - / Options (variable) / - / / - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - - Figure 8: Interface Statistics Block format. - - The fields have the following meaning: - - o IfRecv: number of packets received from the interface during the - capture. This number is reported as a 64 bits value, in which the - most significat bits are located in the first four bytes of the - field. - - o IfDrop: number of packets dropped by the interface during the - capture due to lack of resources. - - o FilterAccept: number of packets accepeted by filter during current - capture. - - o OSDrop: number of packets dropped by the operating system during - the capture. - - o UsrDelivered: number of packets delivered to the user. - UsrDelivered can be different from the value 'FilterAccept - - OSDropped' because some packets could still lay in the OS buffers - when the capture ended. - - - - -Degioanni & Risso Expires August 30, 2004 [Page 19] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - - o Interface ID: reference to an Interface Description Block. - - o Reserved: Reserved to future use. - - o Options: optionally, a list of options (formatted according to the - rules defined in Section 4) can be present. - - In addiction to the options defined in Section 4, the following - options are valid within this block: - - +----------------+----------------+----------------+----------------+ - | Name | Code | Length | Description | - +----------------+----------------+----------------+----------------+ - | isb_starttime | 2 | 8 | Time in which | - | | | | the capture | - | | | | started; time | - | | | | will be stored | - | | | | in two blocks | - | | | | of four bytes | - | | | | each, | - | | | | containing the | - | | | | timestamp in | - | | | | seconds and | - | | | | nanoseconds. | - | | | | | - | isb_endtime | 3 | 8 | Time in which | - | | | | the capture | - | | | | started; time | - | | | | will be stored | - | | | | in two blocks | - | | | | of four bytes | - | | | | each, | - | | | | containing the | - | | | | timestamp in | - | | | | seconds and | - | | | | nanoseconds. | - +----------------+----------------+----------------+----------------+ - - - - - - - - - - - - - - -Degioanni & Risso Expires August 30, 2004 [Page 20] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - -4. Options - - Almost all blocks have the possibility to embed optional fields. - Optional fields can be used to insert some information that may be - useful when reading data, but that it is not really needed for packet - processing. Therefore, each tool can be either read the content of - the optional fields (if any), or skip them at once. - - Skipping all the optional fields at once is straightforward because - most of the blocks have a fixed length, therefore the field Block - Length (present in the General Block Structure, see Section 2.1) can - be used to skip everything till the next block. - - Options are a list of Type - Length - Value fields, each one - containing a single value: - - o Option Type (2 bytes): it contains the code that specifies the - type of the current TLV record. Option types whose Most - Significant Bit is equal to one are reserved for local use; - therefore, there is no guarantee that the code used is unique - among all capture files (generated by other applications). In case - of vendor-specific extensions that have to be identified uniquely, - vendors must request an Option Code whose MSB is equal to zero. - - o Option Length (2 bytes): it contains the length of the following - 'Option Value' field. - - o Option Value (variable length): it contains the value of the given - option. The length of this field as been specified by the Option - Length field. - - Options may be repeated several times (e.g. an interface that has - several IP addresses associated to it). The option list is terminated - by a special code which is the 'End of Option'. - - The format of the optional fields is shown in Figure 9. - - - - - - - - - - - - - - - -Degioanni & Risso Expires August 30, 2004 [Page 21] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Option Code | Option Length | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Option Value | - | /* variable length, byte-aligned */ | - | + + + + + + + + + + + + + + + + + + + + + + + + + - | / / / | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - / / - / . . . other options . . . / - / / - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Option Code == opt_endofopt | Option Length == 0 | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - - Figure 9: Options format. - - The following codes can always be present in any optional field: - - +----------------+----------------+----------------+----------------+ - | Name | Code | Length | Description | - +----------------+----------------+----------------+----------------+ - | opt_endofopt | 0 | 0 | End of | - | | | | options: it is | - | | | | used to | - | | | | delimit the | - | | | | end of the | - | | | | optional | - | | | | fields. This | - | | | | block cannot | - | | | | be repeated | - | | | | within a given | - | | | | list of | - | | | | options. | - | | | | | - | opt_comment | 1 | variable | Comment: it is | - | | | | an ascii | - | | | | string | - | | | | containing a | - | | | | comment that | - | | | | is associated | - | | | | to the current | - | | | | block. | - +----------------+----------------+----------------+----------------+ - - - - - -Degioanni & Risso Expires August 30, 2004 [Page 22] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - -5. Experimental Blocks (deserved to a further investigation) - -5.1 Other Packet Blocks (experimental) - - Can some other packet blocks (besides the two described in the - previous paragraphs) be useful? - -5.2 Compression Block (experimental) - - The Compression Block is optional. A file can contain an arbitrary - number of these blocks. A Compression Block, as the name says, is - used to store compressed data. Its format is shown in Figure 10. - - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Compr. Type | | - +-+-+-+-+-+-+-+-+ | - | | - | Compressed Data | - | | - | /* variable length, byte-aligned */ | - | | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - - Figure 10: Compression Block format. - - The fields have the following meaning: - - o Compression Type: specifies the compression algorithm. Possible - values for this field are 0 (uncompressed), 1 (Lempel Ziv), 2 - (Gzip), other?? Probably some kind of dumb and fast compression - algorithm could be effective with some types of traffic (for - example web), but which? - - o Compressed Data: data of this block. Once decompressed, it is made - of other blocks. - - -5.3 Encryption Block (experimental) - - The Encryption Block is optional. A file can contain an arbitrary - number of these blocks. An Encryption Block is used to sotre - encrypted data. Its format is shown in Figure 11. - - - - - - - -Degioanni & Risso Expires August 30, 2004 [Page 23] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Encr. Type | | - +-+-+-+-+-+-+-+-+ | - | | - | Compressed Data | - | | - | /* variable length, byte-aligned */ | - | | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - - Figure 11: Encryption Block format. - - The fields have the following meaning: - - o Compression Type: specifies the encryption algorithm. Possible - values for this field are ??? NOTE: this block should probably - contain other fields, depending on the encryption algorithm. To be - define precisely. - - o Encrypted Data: data of this block. Once decripted, it consists of - other blocks. - - -5.4 Fixed Length Block (experimental) - - The Fixed Length Block is optional. A file can contain an arbitrary - number of these blocks. A Fixed Length Block can be used to optimize - the access to the file. Its format is shown in Figure 12. A Fixed - Length Block stores records with constant size. It contains a set of - Blocks (normally Packet Blocks or Simple Packet Blocks), of wihich it - specifies the size. Knowing this size a priori helps to scan the file - and to load some portions of it without truncating a block, and is - particularly useful with cell-based networks like ATM. - - - - - - - - - - - - - - - - -Degioanni & Risso Expires August 30, 2004 [Page 24] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Cell Size | | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | - | | - | Fixed Size Data | - | | - | /* variable length, byte-aligned */ | - | | - | | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - - Figure 12: Fixed Length Block format. - - The fields have the following meaning: - - o Cell size: the size of the blocks contained in the data field. - - o Fixed Size Data: data of this block. - - -5.5 Directory Block (experimental) - - If present, this block contains the following information: - - o number of indexed packets (N) - - o table with position and length of any indexed packet (N entries) - - A directory block must be followed by at least N packets, otherwise - it must be considered invalid. It can be used to efficiently load - portions of the file to memory and to support operations on memory - mapped files. This block can be added by tools like network analyzers - as a consequence of file processing. - -5.6 Traffic Statistics and Monitoring Blocks (experimental) - - One or more blocks could be defined to contain network statistics or - traffic monitoring information. They could be use to store data - collected from RMON or Netflow probes, or from other network - monitoring tools. - -5.7 Event/Security Block (experimental) - - This block could be used to store events. Events could contain - generic information (for example network load over 50%, server - down...) or security alerts. An event could be: - - - -Degioanni & Risso Expires August 30, 2004 [Page 25] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - - o skipped, if the application doesn't know how to do with it - - o processed independently by the packets. In other words, the - applications skips the packets and processes only the alerts - - o processed in relation to packets: for example, a security tool - could load only the packets of the file that are near a security - alert; a monitorg tool could skip the packets captured while the - server was down. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Degioanni & Risso Expires August 30, 2004 [Page 26] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - -6. Conclusions - - The file format proposed in this document should be very versatile - and satisfy a wide range of applications. In the simplest case, it - can contain a raw dump of the network data, made of a series of - Simple Packet Blocks. In the most complex case, it can be used as a - repository for heterogeneous information. In every case, the file - remains easy to parse and an application can always skip the data it - is not interested in; at the same time, different applications can - share the file, and each of them can benfit of the information - produced by the others. Two or more files can be concatenated - obtaining another valid file. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Degioanni & Risso Expires August 30, 2004 [Page 27] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - -7. Most important open issues - - o Data, in the file, must be byte or word aligned? Currently, the - structure of this document is not consistent with respect to this - point. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Degioanni & Risso Expires August 30, 2004 [Page 28] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - -Intellectual Property Statement - - The IETF takes no position regarding the validity or scope of any - intellectual property or other rights that might be claimed to - pertain to the implementation or use of the technology described in - this document or the extent to which any license under such rights - might or might not be available; neither does it represent that it - has made any effort to identify any such rights. Information on the - IETF's procedures with respect to rights in standards-track and - standards-related documentation can be found in BCP-11. Copies of - claims of rights made available for publication and any assurances of - licenses to be made available, or the result of an attempt made to - obtain a general license or permission for the use of such - proprietary rights by implementors or users of this specification can - be obtained from the IETF Secretariat. - - The IETF invites any interested party to bring to its attention any - copyrights, patents or patent applications, or other proprietary - rights which may cover technology that may be required to practice - this standard. Please address the information to the IETF Executive - Director. - - -Full Copyright Statement - - Copyright (C) The Internet Society (2004). All Rights Reserved. - - This document and translations of it may be copied and furnished to - others, and derivative works that comment on or otherwise explain it - or assist in its implementation may be prepared, copied, published - and distributed, in whole or in part, without restriction of any - kind, provided that the above copyright notice and this paragraph are - included on all such copies and derivative works. However, this - document itself may not be modified in any way, such as by removing - the copyright notice or references to the Internet Society or other - Internet organizations, except as needed for the purpose of - developing Internet standards in which case the procedures for - copyrights defined in the Internet Standards process must be - followed, or as required to translate it into languages other than - English. - - The limited permissions granted above are perpetual and will not be - revoked by the Internet Society or its successors or assignees. - - This document and the information contained herein is provided on an - "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING - TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING - BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION - - - -Degioanni & Risso Expires August 30, 2004 [Page 29] - -Internet-Draft PCAP New Generation Dump File Format March 2004 - - - HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF - MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - - -Acknowledgment - - Funding for the RFC Editor function is currently provided by the - Internet Society. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Degioanni & Risso Expires August 30, 2004 [Page 30] - diff --git a/contrib/libpcap/doc/pcap.xml b/contrib/libpcap/doc/pcap.xml deleted file mode 100644 index ebbf321..0000000 --- a/contrib/libpcap/doc/pcap.xml +++ /dev/null @@ -1,746 +0,0 @@ -<?xml version="1.0" encoding="utf-8"?> -<?xml-stylesheet type='text/xsl' href='rfc2629.xslt' ?> - -<!DOCTYPE rfc SYSTEM "rfc2629.dtd"> -<?rfc toc="yes"?> -<rfc ipr="full2026" docname="draft-libpcap-dump-format-00.txt"> - <front> - <title>PCAP New Generation Dump File Format</title> - <author initials="L." surname="Degioanni" fullname="Loris Degioanni"> - <organization>Politecnico di Torino</organization> - <address> - <postal> - <street>Corso Duca degli Abruzzi, 24</street> - <city>Torino</city> - <code>10129</code> - <country>Italy</country> - </postal> - <phone>+39 011 564 7008</phone> - <email>loris.degioanni@polito.it</email> - <uri>http://netgroup.polito.it/loris/</uri> - </address> - </author> - <author initials="F." surname="Risso" fullname="Fulvio Risso"> - <organization>Politecnico di Torino</organization> - <address> - <postal> - <street>Corso Duca degli Abruzzi, 24</street> - <city>Torino</city> - <code>10129</code> - <country>Italy</country> - </postal> - <phone>+39 011 564 7008</phone> - <email>fulvio.risso@polito.it</email> - <uri>http://netgroup.polito.it/fulvio.risso/</uri> - </address> - </author> - - <!-- Other authors go here --> - - <date month="March" year="2004"/> - <area>General</area> -<!-- - <workgroup> ---> - <keyword>Internet-Draft</keyword> - <keyword>Libpcap, dump file format</keyword> - <abstract> -<t>This document describes a format to dump captured packets on a file. This format is extensible and it is currently proposed for implementation in the libpcap/WinPcap packet capture library.</t> - </abstract> -<!-- - <note ...> ---> - </front> - <middle> - -<section title="Objectives"> -<t>The problem of exchanging packet traces becomes more and more critical every day; unfortunately, no standard solutions exist for this task right now. One of the most accepted packet interchange formats is the one defined by libpcap, which is rather old and does not fit for some of the nowadays applications especially in terms of extensibility.</t> -<t>This document proposes a new format for dumping packet traces. The following goals are being pursued:</t> -<list style="symbols"> -<t>Extensibility: aside of some common functionalities, third parties should be able to enrich the information embedded in the file with proprietary extensions, which will be ignored by tools that are not able to understand them.</t> -<t>Portability: a capture trace must contain all the information needed to read data independently from network, hardware and operating system of the machine that made the capture.</t> -<t>Merge/Append data: it should be possible to add data at the end of a given file, and the resulting file must still be readable.</t> -</list> - -</section> - - -<section title="General File Structure"> - -<section anchor="sectionblock" title="General Block Structure"> -<t>A capture file is organized in blocks, that are appended one to another to form the file. All the blocks share a common format, which is shown in <xref target="formatblock"/>.</t> - -<figure anchor="formatblock" title="Basic block structure."> -<artwork> - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Block Type | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Block Total Length | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - / Block Body / - / /* variable length, aligned to 32 bits */ / - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Block Total Length | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -</artwork> -</figure> - -<t>The fields have the following meaning:</t> - -<list style="symbols"> -<t>Block Type (32 bits): unique value that identifies the block. Values whose Most Significant Bit (MSB) is equal to 1 are reserved for local use. They allow to save private data to the file and to extend the file format.</t> -<t>Block Total Length: total size of this block, in bytes. For instance, a block that does not have a body has a length of 12 bytes.</t> -<t>Block Body: content of the block.</t> -<t>Block Total Length: total size of this block, in bytes. This field is duplicated for permitting backward file navigation.</t> -</list> - -<t>This structure, shared among all blocks, makes easy to process a file and to skip unneeded or unknown blocks. Blocks can be nested one inside the others (NOTE: needed?). Some of the blocks are mandatory, i.e. a dump file is not valid if they are not present, other are optional.</t> -<t>The structure of the blocks allows to define other blocks if needed. A parser that does non understand them can simply ignore their content.</t> -</section> - -<section title="Block Types"> -<t>The currently defined blocks are the following:</t> -<list style="numbers"> -<t>Section Header Block: it defines the most important characteristics of the capture file.</t> -<t>Interface Description Block: it defines the most important characteristics of the interface(s) used for capturing traffic.</t> -<t>Packet Block: it contains a single captured packet, or a portion of it.</t> -<t>Simple Packet Block: it contains a single captured packet, or a portion of it, with only a minimal set of information about it.</t> -<t>Name Resolution Block: it defines the mapping from numeric addresses present in the packet dump and the canonical name counterpart.</t> -<t>Capture Statistics Block: it defines how to store some statistical data (e.g. packet dropped, etc) which can be useful to undestand the conditions in which the capture has been made.</t> -<t>Compression Marker Block: TODO</t> -<t>Encryption Marker Block: TODO</t> -<t>Fixed Length Marker Block: TODO</t> -</list> - -<t>The following blocks instead are considered interesting but the authors believe that they deserve more in-depth discussion before being defined:</t> -<list style="numbers"> -<t>Further Packet Blocks</t> -<t>Directory Block</t> -<t>Traffic Statistics and Monitoring Blocks</t> -<t>Alert and Security Blocks</t> -</list> - -<t>TODO Currently standardized Block Type codes are specified in Appendix 1.</t> - -</section> - -<section title="Block Hierarchy and Precedence"> -<t>The file must begin with a Section Header Block. However, more than one Section Header Block can be present on the dump, each one covering the data following it till the next one (or the end of file). A Section includes the data delimited by two Section Header Blocks (or by a Section Header Block and the end of the file), including the first Section Header Block.</t> -<t>In case an application cannot read a Section because of different version number, it must skip everything until the next Section Header Block. Note that, in order to properly skip the blocks until the next section, all blocks must have the fields Type and Length at the beginning. This is a mandatory requirement that must be maintained in future versions of the block format.</t> -<t><xref target="fssample-SHB"/> shows two valid files: the first has a typical configuration, with a single Section Header that covers the whole file. The second one contains three headers, and is normally the result of file concatenation. An application that understands only version 1.0 of the file format skips the intermediate section and restart processing the packets after the third Section Header.</t> - -<figure anchor="fssample-SHB" title="File structure example: the Section Header Block."> -<artwork> - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | SHB v1.0 | Data | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - Typical configuration with a single Section Header Block - - - |-- 1st Section --|-- 2nd Section --|-- 3rd Section --| - | | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | SHB v1.0 | Data | SHB V1.1 | Data | SHB V1.0 | Data | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - Configuration with three different Section Header Blocks -</artwork> -</figure> - -<t>NOTE: TO BE COMPLETED with some examples of other blocks</t> - -</section> - -<section title="Data format"> -<t>Data contained in each section will always be saved according to the characteristics (little endian / big endian) of the dumping machine. This refers to all fields that are saved as numbers and that span over two or more bytes.</t> -<t>The approach of having each section saved in the native format of the generating host is more efficient because it avoids translation of data when reading / writing on the host itself, which is the most common case when generating/processing capture dumps.</t> -<t>TODO Probably we have to specify something more here. Is what we're saying enough to avoid any kind of ambiguity?.</t> -</section> - -</section> - - - - -<section title="Block Definition"> -<t>This section details the format of the body of the blocks currently defined.</t> - -<section anchor="sectionshb" title="Section Header Block (mandatory)"> -<t>The Section Header Block is mandatory. It identifies the beginning of a section of the capture dump file. Its format is shown in <xref target="formatSHB"/>.</t> -<figure anchor="formatSHB" title="Section Header Block format."> -<artwork> - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Magic | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Major | Minor | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - / / - / Options (variable) / - / / - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -</artwork> -</figure> - -<t>The meaning of the fields is:</t> -<list style="symbols"> -<t>Magic: magic number, whose value is the hexadecimal number 0x1A2B3C4D. This number can be used to distinguish section that have been saved on little-endian machines from the one saved on big-endian machines.</t> -<t>Major: number of the current mayor version of the format. Current value is 1.</t> -<t>Minor: number of the current minor version of the format. Current value is 0.</t> -<t>Options: optionally, a list of options (formatted according to the rules defined in <xref target="sectionopt"/>) can be present.</t> -</list> - -<t>Aside form the options defined in <xref target="sectionopt"/>, the following options are valid within this block:</t> - -<texttable anchor="InterfaceOptions1"> - <ttcol>Name</ttcol> - <ttcol>Code</ttcol> - <ttcol>Length</ttcol> - <ttcol>Description</ttcol> - - <c>Hardware</c> - <c>2</c> - <c>variable</c> - <c>An ascii string containing the description of the hardware used to create this section.</c> - - <c>Operating System</c> - <c>3</c> - <c>variable</c> - <c>An ascii string containing the name of the operating system used to create this section.</c> - - <c>User Application</c> - <c>3</c> - <c>variable</c> - <c>An ascii string containing the name of the application used to create this section.</c> -</texttable> - - -<t>The Section Header Block does not contain data but it rather identifies a list of blocks (interfaces, packets) that are logically correlated. This block does not contain any reference to the size of the section it is currently delimiting, therefore the reader cannot skip a whole section at once. In case a section must be skipped, the user has to repeatedly skip all the blocks contained within it; this makes the parsing of the file slower but it permits to append several capture dumps at the same file.</t> -</section> - -<section anchor="sectionidb" title="Interface Description Block (mandatory)"> -<t>The Interface Description Block is mandatory. This block is needed to specify the characteristics of the network interface on which the capture has been made. In order to properly associate the captured data to the corresponding interface, the Interface Description Block must be defined before any other block that uses it; therefore, this block is usually placed immediately after the Section Header Block.</t> - -<t>An Interface Description Block is valid only inside the section which it belongs to. The structure of a Interface Description Block is shown in <xref target="formatidb"/>.</t> - -<figure anchor="formatidb" title="Interface Description Block format."> -<artwork> - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Interface ID | LinkType | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | SnapLen | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - / / - / Options (variable) / - / / - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - </artwork> -</figure> - -<t>The meaning of the fields is:</t> -<list style="symbols"> -<t>Interface ID: a progressive number that identifies uniquely any interface inside current section. Two Interface Description Blocks can have the same Interface ID only if they are in different sections of the file. The Interface ID is referenced by the packet blocks.</t> -<t>LinkType: a value that defines the link layer type of this interface.</t> -<t>SnapLen: maximum number of bytes dumped from each packet. The portion of each packet that exceeds this value will not be stored in the file.</t> -<t>Options: optionally, a list of options (formatted according to the rules defined in <xref target="sectionopt"/>) can be present.</t> -</list> - -<t>In addition to the options defined in <xref target="sectionopt"/>, the following options are valid within this block:</t> - -<texttable anchor="InterfaceOptions2"> - <ttcol>Name</ttcol> - <ttcol>Code</ttcol> - <ttcol>Length</ttcol> - <ttcol>Description</ttcol> - - <c>if_name</c> - <c>2</c> - <c>Variable</c> - <c>Name of the device used to capture data.</c> - - <c>if_IPv4addr</c> - <c>3</c> - <c>8</c> - <c>Interface network address and netmask.</c> - - <c>if_IPv6addr</c> - <c>4</c> - <c>17</c> - <c>Interface network address and prefix length (stored in the last byte).</c> - - <c>if_MACaddr</c> - <c>5</c> - <c>6</c> - <c>Interface Hardware MAC address (48 bits).</c> - - <c>if_EUIaddr</c> - <c>6</c> - <c>8</c> - <c>Interface Hardware EUI address (64 bits), if available.</c> - - <c>if_speed</c> - <c>7</c> - <c>8</c> - <c>Interface speed (in bps).</c> - - <c>if_tsaccur</c> - <c>8</c> - <c>1</c> - <c>Precision of timestamps. If the Most Significant Bit is equal to zero, the remaining bits indicates the accuracy as as a negative power of 10 (e.g. 6 means microsecond accuracy). If the Most Significant Bit is equal to zero, the remaining bits indicates the accuracy as as negative power of 2 (e.g. 10 means 1/1024 of second). If this option is not present, a precision of 10^-6 is assumed.</c> - - <c>if_tzone</c> - <c>9</c> - <c>4</c> - <c>Time zone for GMT support (TODO: specify better).</c> - - <c>if_flags</c> - <c>10</c> - <c>4</c> - <c>Interface flags. (TODO: specify better. Possible flags: promiscuous, inbound/outbound, traffic filtered during capture).</c> - - <c>if_filter</c> - <c>11</c> - <c>variable</c> - <c>The filter (e.g. "capture only TCP traffic") used to capture traffic. The first byte of the Option Data keeps a code of the filter used (e.g. if this is a libpcap string, or BPF bytecode, and more). More details about this format will be presented in Appendix XXX (TODO).</c> - - <c>if_opersystem</c> - <c>12</c> - <c>variable</c> - <c>An ascii string containing the name of the operating system of the machine that hosts this interface. This can be different from the same information that can be contained by the Section Header Block (<xref target="sectionshb"/>) because the capture can have been done on a remote machine.</c> - -</texttable> - -</section> - - - -<section anchor="sectionpb" title="Packet Block (optional)"> -<t>A Packet Block is the standard container for storing the packets coming from the network. The Packet Block is optional because packets can be stored either by means of this block or the Simple Packet Block, which can be used to speed up dump generation. The format of a packet block is shown in <xref target="formatpb"/>.</t> - -<figure anchor="formatpb" title="Packet Block format."> -<artwork> - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Interface ID | Drops Count | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Timestamp (High) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Timestamp (Low) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Captured Len | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Packet Len | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | | - | Packet Data | - | | - | /* variable length, byte-aligned */ | - | | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - / / - / Options (variable) / - / / - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ -</artwork> -</figure> - -<t>The Packet Block has the following fields:</t> - -<list style="symbols"> -<t>Interface ID: Specifies the interface this packet comes from, and corresponds to the ID of one of the Interface Description Blocks present in this section of the file (see <xref target="formatidb"/>).</t> -<t>Drops Count: a local drop counter. It specified the number of packets lost (by the interface and the operating system) between this packet and the preceding one. The value xFFFF (in hexadecimal) is reserved for those systems in which this information is not available.</t> -<t>Timestamp (High): the most significative part of the timestamp. in standard Unix format, i.e. from 1/1/1970.</t> -<t>Timestamp (Low): the less significative part of the timestamp. The way to interpret this field is specified by the 'ts_accur' option (see <xref target="formatidb"/>) of the Interface Description block referenced by this packet. If the Interface Description block does not contain a 'ts_accur' option, then this field is expressed in microseconds.</t> -<t>Captured Len: number of bytes captured from the packet (i.e. the length of the Packet Data field). It will be the minimum value among the actual Packet Length and the snapshot length (defined in <xref target="formatidb"/>).</t> -<t>Packet Len: actual length of the packet when it was transmitted on the network. Can be different from Captured Len if the user wants only a snapshot of the packet.</t> -<t>Packet Data: the data coming from the network, including link-layer headers. The length of this field is Captured Len. The format of the link-layer headers depends on the LinkType field specified in the Interface Description Block (see <xref target="sectionidb"/>) and it is specified in Appendix XXX (TODO).</t> -<t>Options: optionally, a list of options (formatted according to the rules defined in <xref target="sectionopt"/>) can be present.</t> -</list> - -<t></t> -</section> - - -<section title="Simple Packet Block (optional)"> -<t>The Simple Packet Block is a lightweight container for storing the packets coming from the network. Its presence is optional.</t> -<t>A Simple Packet Block is similar to a Packet Block (see <xref target="sectionpb"/>), but it is smaller, simpler to process and contains only a minimal set of information. This block is preferred to the standard Packet Block when performance or space occupation are critical factors, such as in sustained traffic dump applications. A capture file can contain both Packet Blocks and Simple Packet Blocks: for example, a capture tool could switch from Packet Blocks to Simple Packet Blocks when the hardware resources become critical.</t> -<t>The Simple Packet Block does not contain the Interface ID field. Therefore, it must be assumed that all the Simple Packet Blocks have been captured on the interface previously specified in the Interface Description Block.</t> -<t><xref target="formatpbs"/> shows the format of the Simple Packet Block.</t> - -<figure anchor="formatpbs" title="Simple Packet Block format."> -<artwork> - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Packet Len | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | | - | Packet Data | - | | - | /* variable length, byte-aligned */ | - | | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - </artwork> -</figure> - -<t>The Packet Block has the following fields:</t> -<list style="symbols"> -<t>Packet Len: actual length of the packet when it was transmitted on the network. Can be different from captured len if the packet has been truncated.</t> -<t>Packet data: the data coming from the network, including link-layers headers. The length of this field can be derived from the field Block Total Length, present in the Block Header.</t> -</list> - -<t>The Simple Packet Block does not contain the timestamp because this is one of the most costly operations on PCs. Additionally, there are applications that do not require it; e.g. an Intrusion Detection System is interested in packets, not in their timestamp.</t> - -<t>The Simple Packet Block is very efficient in term of disk space: a snapshot of length 100 bytes requires only 16 bytes of overhead, which corresponds to an efficiency of more than 86%.</t> - -</section> - - - -<section title="Name Resolution Block (optional)"> -<t>The Name Resolution Block is used to support the correlation of numeric addresses (present in the captured packets) and their corresponding canonical names and it is optional. Having the literal names saved in the file, this prevents the need of a name resolution in a delayed time, when the association between names and addresses can be different from the one in use at capture time. Moreover, The Name Resolution Block avoids the need of issuing a lot of DNS requests every time the trace capture is opened, and allows to have name resolution also when reading the capture with a machine not connected to the network.</t> -<t>The format of the Name Resolution Block is shown in <xref target="formatnrb"/>.</t> - -<figure anchor="formatnrb" title="Name Resolution Block format."> -<artwork> - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Record Type | Record Length | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Record Value | - | /* variable length, byte-aligned */ | - | + + + + + + + + + + + + + + + + + + + + + + + + + - | | | | | - +-+-+-+-+-+-+-+-+ + + + + + + + + + + + + + + + + + + + + + + + + - . . . other records . . . - | Record Type == end_of_recs | Record Length == 00 | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - / / - / Options (variable) / - / / - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - </artwork> -</figure> - -<t>A Name Resolution Block is a zero-terminated list of records (in the TLV format), each of which contains an association between a network address and a name. There are three possible types of records:</t> - -<texttable anchor="nrrecords"> - <ttcol>Name</ttcol> - <ttcol>Code</ttcol> - <ttcol>Length</ttcol> - <ttcol>Description</ttcol> - - <c>end_of_recs</c> - <c>0</c> - <c>0</c> - <c>End of records</c> - - <c>ip4_rec</c> - <c>1</c> - <c>Variable</c> - <c>Specifies an IPv4 address (contained in the first 4 bytes), followed by one or more zero-terminated strings containing the DNS entries for that address.</c> - - <c>ip6_rec</c> - <c>1</c> - <c>Variable</c> - <c>Specifies an IPv6 address (contained in the first 16 bytes), followed by one or more zero-terminated strings containing the DNS entries for that address.</c> -</texttable> - -<t>After the list or Name Resolution Records, optionally, a list of options (formatted according to the rules defined in <xref target="sectionopt"/>) can be present.</t> - -<t>A Name Resolution Block is normally placed at the beginning of the file, but no assumptions can be taken about its position. Name Resolution Blocks can be added in a second time by tools that process the file, like network analyzers.</t> - -<t>In addiction to the options defined in <xref target="sectionopt"/>, the following options are valid within this block:</t> - -<texttable> - <ttcol>Name</ttcol> - <ttcol>Code</ttcol> - <ttcol>Length</ttcol> - <ttcol>Description</ttcol> - - <c>ns_dnsname</c> - <c>2</c> - <c>Variable</c> - <c>An ascii string containing the name of the machine (DNS server) used to perform the name resolution.</c> -</texttable> - -</section> - - -<section title="Interface Statistics Block (optional)"> -<t>The Interface Statistics Block contains the capture statistics for a given interface and it is optional. The statistics are referred to the interface defined in the current Section identified by the Interface ID field.</t> -<t>The format of the Interface Statistics Block is shown in <xref target="formatisb"/>.</t> - -<figure anchor="formatisb" title="Interface Statistics Block format."> -<artwork> - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | IfRecv | - | (high + low) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | IfDrop | - | (high + low) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | FilterAccept | - | (high + low) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | OSDrop | - | (high + low) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | UsrDelivered | - | (high + low) | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Interface ID | Reserved | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - / / - / Options (variable) / - / / - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - </artwork> -</figure> - -<t>The fields have the following meaning:</t> - -<list style="symbols"> -<t>IfRecv: number of packets received from the interface during the capture. This number is reported as a 64 bits value, in which the most significat bits are located in the first four bytes of the field.</t> -<t>IfDrop: number of packets dropped by the interface during the capture due to lack of resources.</t> -<t>FilterAccept: number of packets accepeted by filter during current capture.</t> -<t>OSDrop: number of packets dropped by the operating system during the capture.</t> -<t>UsrDelivered: number of packets delivered to the user. UsrDelivered can be different from the value 'FilterAccept - OSDropped' because some packets could still lay in the OS buffers when the capture ended.</t> -<t>Interface ID: reference to an Interface Description Block.</t> -<t>Reserved: Reserved to future use.</t> -<t>Options: optionally, a list of options (formatted according to the rules defined in <xref target="sectionopt"/>) can be present.</t> -</list> - -<t>In addiction to the options defined in <xref target="sectionopt"/>, the following options are valid within this block:</t> - -<texttable> - <ttcol>Name</ttcol> - <ttcol>Code</ttcol> - <ttcol>Length</ttcol> - <ttcol>Description</ttcol> - - <c>isb_starttime</c> - <c>2</c> - <c>8</c> - <c>Time in which the capture started; time will be stored in two blocks of four bytes each, containing the timestamp in seconds and nanoseconds.</c> - - <c>isb_endtime</c> - <c>3</c> - <c>8</c> - <c>Time in which the capture started; time will be stored in two blocks of four bytes each, containing the timestamp in seconds and nanoseconds.</c> -</texttable> - -</section> -</section> - - - -<section anchor="sectionopt" title="Options"> -<t>Almost all blocks have the possibility to embed optional fields. Optional fields can be used to insert some information that may be useful when reading data, but that it is not really needed for packet processing. Therefore, each tool can be either read the content of the optional fields (if any), or skip them at once.</t> -<t>Skipping all the optional fields at once is straightforward because most of the blocks have a fixed length, therefore the field Block Length (present in the General Block Structure, see <xref target="sectionblock"/>) can be used to skip everything till the next block.</t> - -<t>Options are a list of Type - Length - Value fields, each one containing a single value:</t> - -<list style="symbols"> -<t>Option Type (2 bytes): it contains the code that specifies the type of the current TLV record. Option types whose Most Significant Bit is equal to one are reserved for local use; therefore, there is no guarantee that the code used is unique among all capture files (generated by other applications). In case of vendor-specific extensions that have to be identified uniquely, vendors must request an Option Code whose MSB is equal to zero.</t> -<t>Option Length (2 bytes): it contains the length of the following 'Option Value' field.</t> -<t>Option Value (variable length): it contains the value of the given option. The length of this field as been specified by the Option Length field.</t> -</list> - -<t>Options may be repeated several times (e.g. an interface that has several IP addresses associated to it). The option list is terminated by a special code which is the 'End of Option'.</t> - -<t>The format of the optional fields is shown in <xref target="formatopt"/>.</t> - -<figure anchor="formatopt" title="Options format."> -<artwork> - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Option Code | Option Length | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Option Value | - | /* variable length, byte-aligned */ | - | + + + + + + + + + + + + + + + + + + + + + + + + + - | / / / | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - / / - / . . . other options . . . / - / / - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Option Code == opt_endofopt | Option Length == 0 | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - </artwork> -</figure> - -<t>The following codes can always be present in any optional field:</t> - -<texttable> - <ttcol>Name</ttcol> - <ttcol>Code</ttcol> - <ttcol>Length</ttcol> - <ttcol>Description</ttcol> - - <c>opt_endofopt</c> - <c>0</c> - <c>0</c> - <c>End of options: it is used to delimit the end of the optional fields. This block cannot be repeated within a given list of options.</c> - - <c>opt_comment</c> - <c>1</c> - <c>variable</c> - <c>Comment: it is an ascii string containing a comment that is associated to the current block.</c> -</texttable> - -</section> - - - - -<section title="Experimental Blocks (deserved to a further investigation)"> - -<section title="Other Packet Blocks (experimental)"> -<t>Can some other packet blocks (besides the two described in the previous paragraphs) be useful?</t> -</section> - -<section title="Compression Block (experimental)"> -<t>The Compression Block is optional. A file can contain an arbitrary number of these blocks. A Compression Block, as the name says, is used to store compressed data. Its format is shown in <xref target="formatcb"/>.</t> - -<figure anchor="formatcb" title="Compression Block format."> -<artwork> - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Compr. Type | | - +-+-+-+-+-+-+-+-+ | - | | - | Compressed Data | - | | - | /* variable length, byte-aligned */ | - | | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - </artwork> -</figure> - -<t>The fields have the following meaning:</t> - -<list style="symbols"> -<t>Compression Type: specifies the compression algorithm. Possible values for this field are 0 (uncompressed), 1 (Lempel Ziv), 2 (Gzip), other?? Probably some kind of dumb and fast compression algorithm could be effective with some types of traffic (for example web), but which?</t> -<t>Compressed Data: data of this block. Once decompressed, it is made of other blocks.</t> -</list> - -</section> - - -<section title="Encryption Block (experimental)"> -<t>The Encryption Block is optional. A file can contain an arbitrary number of these blocks. An Encryption Block is used to sotre encrypted data. Its format is shown in <xref target="formateb"/>.</t> - -<figure anchor="formateb" title="Encryption Block format."> -<artwork> - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Encr. Type | | - +-+-+-+-+-+-+-+-+ | - | | - | Compressed Data | - | | - | /* variable length, byte-aligned */ | - | | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - </artwork> -</figure> - -<t>The fields have the following meaning:</t> -<list style="symbols"> -<t>Compression Type: specifies the encryption algorithm. Possible values for this field are ??? NOTE: this block should probably contain other fields, depending on the encryption algorithm. To be define precisely.</t> -<t>Encrypted Data: data of this block. Once decripted, it consists of other blocks.</t> -</list> - -</section> - - -<section title="Fixed Length Block (experimental)"> -<t>The Fixed Length Block is optional. A file can contain an arbitrary number of these blocks. A Fixed Length Block can be used to optimize the access to the file. Its format is shown in <xref target="formatflm"/>. -A Fixed Length Block stores records with constant size. It contains a set of Blocks (normally Packet Blocks or Simple Packet Blocks), of wihich it specifies the size. Knowing this size a priori helps to scan the file and to load some portions of it without truncating a block, and is particularly useful with cell-based networks like ATM.</t> - -<figure anchor="formatflm" title="Fixed Length Block format."> -<artwork> - 0 1 2 3 - 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - | Cell Size | | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | - | | - | Fixed Size Data | - | | - | /* variable length, byte-aligned */ | - | | - | | - +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - </artwork> -</figure> - -<t>The fields have the following meaning:</t> -<list style="symbols"> -<t>Cell size: the size of the blocks contained in the data field.</t> -<t>Fixed Size Data: data of this block.</t> -</list> - -</section> - -<section title="Directory Block (experimental)"> -<t>If present, this block contains the following information:</t> -<list style="symbols"> -<t>number of indexed packets (N)</t> -<t>table with position and length of any indexed packet (N entries)</t> -</list> - -<t>A directory block must be followed by at least N packets, otherwise it must be considered invalid. It can be used to efficiently load portions of the file to memory and to support operations on memory mapped files. This block can be added by tools like network analyzers as a consequence of file processing.</t> -</section> - -<section title="Traffic Statistics and Monitoring Blocks (experimental)"> -<t>One or more blocks could be defined to contain network statistics or traffic monitoring information. They could be use to store data collected from RMON or Netflow probes, or from other network monitoring tools.</t> -</section> - -<section title="Event/Security Block (experimental)"> -<t>This block could be used to store events. Events could contain generic information (for example network load over 50%, server down...) or security alerts. An event could be:</t> - -<list style="symbols"> -<t>skipped, if the application doesn't know how to do with it</t> -<t>processed independently by the packets. In other words, the applications skips the packets and processes only the alerts</t> -<t>processed in relation to packets: for example, a security tool could load only the packets of the file that are near a security alert; a monitorg tool could skip the packets captured while the server was down.</t> -</list> - -</section> - -</section> - - - - -<section title="Conclusions"> -<t>The file format proposed in this document should be very versatile and satisfy a wide range of applications. -In the simplest case, it can contain a raw dump of the network data, made of a series of Simple Packet Blocks. -In the most complex case, it can be used as a repository for heterogeneous information. -In every case, the file remains easy to parse and an application can always skip the data it is not interested in; at the same time, different applications can share the file, and each of them can benfit of the information produced by the others. -Two or more files can be concatenated obtaining another valid file.</t> -</section> - - -<section title="Most important open issues"> -<list style="symbols"> -<t>Data, in the file, must be byte or word aligned? Currently, the structure of this document is not consistent with respect to this point.</t> -</list> -</section> - -</middle> - -</rfc> diff --git a/contrib/libpcap/etherent.c b/contrib/libpcap/etherent.c deleted file mode 100644 index 9d29955..0000000 --- a/contrib/libpcap/etherent.c +++ /dev/null @@ -1,162 +0,0 @@ -/* - * Copyright (c) 1990, 1993, 1994, 1995, 1996 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/etherent.c,v 1.22 2003/11/15 23:23:57 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <sys/types.h> - -#include <ctype.h> -#include <memory.h> -#include <stdio.h> -#include <string.h> - -#include "pcap-int.h" - -#include <pcap-namedb.h> - -#ifdef HAVE_OS_PROTO_H -#include "os-proto.h" -#endif - -static inline int xdtoi(int); -static inline int skip_space(FILE *); -static inline int skip_line(FILE *); - -/* Hex digit to integer. */ -static inline int -xdtoi(c) - register int c; -{ - if (isdigit(c)) - return c - '0'; - else if (islower(c)) - return c - 'a' + 10; - else - return c - 'A' + 10; -} - -static inline int -skip_space(f) - FILE *f; -{ - int c; - - do { - c = getc(f); - } while (isspace(c) && c != '\n'); - - return c; -} - -static inline int -skip_line(f) - FILE *f; -{ - int c; - - do - c = getc(f); - while (c != '\n' && c != EOF); - - return c; -} - -struct pcap_etherent * -pcap_next_etherent(FILE *fp) -{ - register int c, d, i; - char *bp; - static struct pcap_etherent e; - - memset((char *)&e, 0, sizeof(e)); - do { - /* Find addr */ - c = skip_space(fp); - if (c == '\n') - continue; - - /* If this is a comment, or first thing on line - cannot be etehrnet address, skip the line. */ - if (!isxdigit(c)) { - c = skip_line(fp); - continue; - } - - /* must be the start of an address */ - for (i = 0; i < 6; i += 1) { - d = xdtoi(c); - c = getc(fp); - if (isxdigit(c)) { - d <<= 4; - d |= xdtoi(c); - c = getc(fp); - } - e.addr[i] = d; - if (c != ':') - break; - c = getc(fp); - } - if (c == EOF) - break; - - /* Must be whitespace */ - if (!isspace(c)) { - c = skip_line(fp); - continue; - } - c = skip_space(fp); - - /* hit end of line... */ - if (c == '\n') - continue; - - if (c == '#') { - c = skip_line(fp); - continue; - } - - /* pick up name */ - bp = e.name; - /* Use 'd' to prevent buffer overflow. */ - d = sizeof(e.name) - 1; - do { - *bp++ = c; - c = getc(fp); - } while (!isspace(c) && c != EOF && --d > 0); - *bp = '\0'; - - /* Eat trailing junk */ - if (c != '\n') - (void)skip_line(fp); - - return &e; - - } while (c != EOF); - - return (NULL); -} diff --git a/contrib/libpcap/ethertype.h b/contrib/libpcap/ethertype.h deleted file mode 100644 index 2d21c6d..0000000 --- a/contrib/libpcap/ethertype.h +++ /dev/null @@ -1,119 +0,0 @@ -/* - * Copyright (c) 1993, 1994, 1996 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * @(#) $Header: /tcpdump/master/libpcap/ethertype.h,v 1.13.2.1 2005/09/05 09:08:03 guy Exp $ (LBL) - */ - -/* - * Ethernet types. - * - * We wrap the declarations with #ifdef, so that if a file includes - * <netinet/if_ether.h>, which may declare some of these, we don't - * get a bunch of complaints from the C compiler about redefinitions - * of these values. - * - * We declare all of them here so that no file has to include - * <netinet/if_ether.h> if all it needs are ETHERTYPE_ values. - */ - -#ifndef ETHERTYPE_PUP -#define ETHERTYPE_PUP 0x0200 /* PUP protocol */ -#endif -#ifndef ETHERTYPE_IP -#define ETHERTYPE_IP 0x0800 /* IP protocol */ -#endif -#ifndef ETHERTYPE_ARP -#define ETHERTYPE_ARP 0x0806 /* Addr. resolution protocol */ -#endif -#ifndef ETHERTYPE_REVARP -#define ETHERTYPE_REVARP 0x8035 /* reverse Addr. resolution protocol */ -#endif -#ifndef ETHERTYPE_NS -#define ETHERTYPE_NS 0x0600 -#endif -#ifndef ETHERTYPE_SPRITE -#define ETHERTYPE_SPRITE 0x0500 -#endif -#ifndef ETHERTYPE_TRAIL -#define ETHERTYPE_TRAIL 0x1000 -#endif -#ifndef ETHERTYPE_MOPDL -#define ETHERTYPE_MOPDL 0x6001 -#endif -#ifndef ETHERTYPE_MOPRC -#define ETHERTYPE_MOPRC 0x6002 -#endif -#ifndef ETHERTYPE_DN -#define ETHERTYPE_DN 0x6003 -#endif -#ifndef ETHERTYPE_LAT -#define ETHERTYPE_LAT 0x6004 -#endif -#ifndef ETHERTYPE_SCA -#define ETHERTYPE_SCA 0x6007 -#endif -#ifndef ETHERTYPE_REVARP -#define ETHERTYPE_REVARP 0x8035 -#endif -#ifndef ETHERTYPE_LANBRIDGE -#define ETHERTYPE_LANBRIDGE 0x8038 -#endif -#ifndef ETHERTYPE_DECDNS -#define ETHERTYPE_DECDNS 0x803c -#endif -#ifndef ETHERTYPE_DECDTS -#define ETHERTYPE_DECDTS 0x803e -#endif -#ifndef ETHERTYPE_VEXP -#define ETHERTYPE_VEXP 0x805b -#endif -#ifndef ETHERTYPE_VPROD -#define ETHERTYPE_VPROD 0x805c -#endif -#ifndef ETHERTYPE_ATALK -#define ETHERTYPE_ATALK 0x809b -#endif -#ifndef ETHERTYPE_AARP -#define ETHERTYPE_AARP 0x80f3 -#endif -#ifndef ETHERTYPE_8021Q -#define ETHERTYPE_8021Q 0x8100 -#endif -#ifndef ETHERTYPE_IPX -#define ETHERTYPE_IPX 0x8137 -#endif -#ifndef ETHERTYPE_IPV6 -#define ETHERTYPE_IPV6 0x86dd -#endif -#ifndef ETHERTYPE_MPLS -#define ETHERTYPE_MPLS 0x8847 -#endif -#ifndef ETHERTYPE_MPLS_MULTI -#define ETHERTYPE_MPLS_MULTI 0x8848 -#endif -#ifndef ETHERTYPE_PPPOED -#define ETHERTYPE_PPPOED 0x8863 -#endif -#ifndef ETHERTYPE_PPPOES -#define ETHERTYPE_PPPOES 0x8864 -#endif -#ifndef ETHERTYPE_LOOPBACK -#define ETHERTYPE_LOOPBACK 0x9000 -#endif diff --git a/contrib/libpcap/fad-getad.c b/contrib/libpcap/fad-getad.c deleted file mode 100644 index 8101165..0000000 --- a/contrib/libpcap/fad-getad.c +++ /dev/null @@ -1,288 +0,0 @@ -/* -*- Mode: c; tab-width: 8; indent-tabs-mode: 1; c-basic-offset: 8; -*- */ -/* - * Copyright (c) 1994, 1995, 1996, 1997, 1998 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the Computer Systems - * Engineering Group at Lawrence Berkeley Laboratory. - * 4. Neither the name of the University nor of the Laboratory may be used - * to endorse or promote products derived from this software without - * specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/fad-getad.c,v 1.10.2.2 2007/09/14 00:45:17 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <sys/types.h> -#include <sys/socket.h> -#include <netinet/in.h> - -#include <net/if.h> - -#include <ctype.h> -#include <errno.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <ifaddrs.h> - -#include "pcap-int.h" - -#ifdef HAVE_OS_PROTO_H -#include "os-proto.h" -#endif - -#ifdef AF_PACKET -# ifdef __Lynx__ -# include <netpacket/if_packet.h> /* LynxOS */ -# else -# include <linux/if_packet.h> /* Linux */ -# endif -#endif - -/* - * This is fun. - * - * In older BSD systems, socket addresses were fixed-length, and - * "sizeof (struct sockaddr)" gave the size of the structure. - * All addresses fit within a "struct sockaddr". - * - * In newer BSD systems, the socket address is variable-length, and - * there's an "sa_len" field giving the length of the structure; - * this allows socket addresses to be longer than 2 bytes of family - * and 14 bytes of data. - * - * Some commercial UNIXes use the old BSD scheme, some use the RFC 2553 - * variant of the old BSD scheme (with "struct sockaddr_storage" rather - * than "struct sockaddr"), and some use the new BSD scheme. - * - * Some versions of GNU libc use neither scheme, but has an "SA_LEN()" - * macro that determines the size based on the address family. Other - * versions don't have "SA_LEN()" (as it was in drafts of RFC 2553 - * but not in the final version). On the latter systems, we explicitly - * check the AF_ type to determine the length; we assume that on - * all those systems we have "struct sockaddr_storage". - */ -#ifndef SA_LEN -#ifdef HAVE_SOCKADDR_SA_LEN -#define SA_LEN(addr) ((addr)->sa_len) -#else /* HAVE_SOCKADDR_SA_LEN */ -#ifdef HAVE_SOCKADDR_STORAGE -static size_t -get_sa_len(struct sockaddr *addr) -{ - switch (addr->sa_family) { - -#ifdef AF_INET - case AF_INET: - return (sizeof (struct sockaddr_in)); -#endif - -#ifdef AF_INET6 - case AF_INET6: - return (sizeof (struct sockaddr_in6)); -#endif - -#ifdef AF_PACKET - case AF_PACKET: - return (sizeof (struct sockaddr_ll)); -#endif - - default: - return (sizeof (struct sockaddr)); - } -} -#define SA_LEN(addr) (get_sa_len(addr)) -#else /* HAVE_SOCKADDR_STORAGE */ -#define SA_LEN(addr) (sizeof (struct sockaddr)) -#endif /* HAVE_SOCKADDR_STORAGE */ -#endif /* HAVE_SOCKADDR_SA_LEN */ -#endif /* SA_LEN */ - -/* - * Get a list of all interfaces that are up and that we can open. - * Returns -1 on error, 0 otherwise. - * The list, as returned through "alldevsp", may be null if no interfaces - * were up and could be opened. - * - * This is the implementation used on platforms that have "getifaddrs()". - */ -int -pcap_findalldevs(pcap_if_t **alldevsp, char *errbuf) -{ - pcap_if_t *devlist = NULL; - struct ifaddrs *ifap, *ifa; - struct sockaddr *addr, *netmask, *broadaddr, *dstaddr; - size_t addr_size, broadaddr_size, dstaddr_size; - int ret = 0; - char *p, *q; - - /* - * Get the list of interface addresses. - * - * Note: this won't return information about interfaces - * with no addresses; are there any such interfaces - * that would be capable of receiving packets? - * (Interfaces incapable of receiving packets aren't - * very interesting from libpcap's point of view.) - * - * LAN interfaces will probably have link-layer - * addresses; I don't know whether all implementations - * of "getifaddrs()" now, or in the future, will return - * those. - */ - if (getifaddrs(&ifap) != 0) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "getifaddrs: %s", pcap_strerror(errno)); - return (-1); - } - for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next) { - /* - * Is this interface up? - */ - if (!(ifa->ifa_flags & IFF_UP)) { - /* - * No, so don't add it to the list. - */ - continue; - } - - /* - * "ifa_addr" was apparently null on at least one - * interface on some system. - * - * "ifa_broadaddr" may be non-null even on - * non-broadcast interfaces, and was null on - * at least one OpenBSD 3.4 system on at least - * one interface with IFF_BROADCAST set. - * - * "ifa_dstaddr" was, on at least one FreeBSD 4.1 - * system, non-null on a non-point-to-point - * interface. - * - * Therefore, we supply the address and netmask only - * if "ifa_addr" is non-null (if there's no address, - * there's obviously no netmask), and supply the - * broadcast and destination addresses if the appropriate - * flag is set *and* the appropriate "ifa_" entry doesn't - * evaluate to a null pointer. - */ - if (ifa->ifa_addr != NULL) { - addr = ifa->ifa_addr; - addr_size = SA_LEN(addr); - netmask = ifa->ifa_netmask; - } else { - addr = NULL; - addr_size = 0; - netmask = NULL; - } - if (ifa->ifa_flags & IFF_BROADCAST && - ifa->ifa_broadaddr != NULL) { - broadaddr = ifa->ifa_broadaddr; - broadaddr_size = SA_LEN(broadaddr); - } else { - broadaddr = NULL; - broadaddr_size = 0; - } - if (ifa->ifa_flags & IFF_POINTOPOINT && - ifa->ifa_dstaddr != NULL) { - dstaddr = ifa->ifa_dstaddr; - dstaddr_size = SA_LEN(ifa->ifa_dstaddr); - } else { - dstaddr = NULL; - dstaddr_size = 0; - } - - /* - * If this entry has a colon followed by a number at - * the end, we assume it's a logical interface. Those - * are just the way you assign multiple IP addresses to - * a real interface on Linux, so an entry for a logical - * interface should be treated like the entry for the - * real interface; we do that by stripping off the ":" - * and the number. - * - * XXX - should we do this only on Linux? - */ - p = strchr(ifa->ifa_name, ':'); - if (p != NULL) { - /* - * We have a ":"; is it followed by a number? - */ - q = p + 1; - while (isdigit((unsigned char)*q)) - q++; - if (*q == '\0') { - /* - * All digits after the ":" until the end. - * Strip off the ":" and everything after - * it. - */ - *p = '\0'; - } - } - - /* - * Add information for this address to the list. - */ - if (add_addr_to_iflist(&devlist, ifa->ifa_name, - ifa->ifa_flags, addr, addr_size, netmask, addr_size, - broadaddr, broadaddr_size, dstaddr, dstaddr_size, - errbuf) < 0) { - ret = -1; - break; - } - } - - freeifaddrs(ifap); - - if (ret != -1) { - /* - * We haven't had any errors yet; do any platform-specific - * operations to add devices. - */ - if (pcap_platform_finddevs(&devlist, errbuf) < 0) - ret = -1; - } - - if (ret == -1) { - /* - * We had an error; free the list we've been constructing. - */ - if (devlist != NULL) { - pcap_freealldevs(devlist); - devlist = NULL; - } - } - - *alldevsp = devlist; - return (ret); -} diff --git a/contrib/libpcap/fad-gifc.c b/contrib/libpcap/fad-gifc.c deleted file mode 100644 index 985d2c0..0000000 --- a/contrib/libpcap/fad-gifc.c +++ /dev/null @@ -1,578 +0,0 @@ -/* -*- Mode: c; tab-width: 8; indent-tabs-mode: 1; c-basic-offset: 8; -*- */ -/* - * Copyright (c) 1994, 1995, 1996, 1997, 1998 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the Computer Systems - * Engineering Group at Lawrence Berkeley Laboratory. - * 4. Neither the name of the University nor of the Laboratory may be used - * to endorse or promote products derived from this software without - * specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/fad-gifc.c,v 1.8.2.2 2005/06/29 06:43:31 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <sys/param.h> -#include <sys/file.h> -#include <sys/ioctl.h> -#include <sys/socket.h> -#ifdef HAVE_SYS_SOCKIO_H -#include <sys/sockio.h> -#endif -#include <sys/time.h> /* concession to AIX */ - -struct mbuf; /* Squelch compiler warnings on some platforms for */ -struct rtentry; /* declarations in <net/if.h> */ -#include <net/if.h> -#include <netinet/in.h> - -#include <ctype.h> -#include <errno.h> -#include <memory.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include "pcap-int.h" - -#ifdef HAVE_OS_PROTO_H -#include "os-proto.h" -#endif - -/* - * This is fun. - * - * In older BSD systems, socket addresses were fixed-length, and - * "sizeof (struct sockaddr)" gave the size of the structure. - * All addresses fit within a "struct sockaddr". - * - * In newer BSD systems, the socket address is variable-length, and - * there's an "sa_len" field giving the length of the structure; - * this allows socket addresses to be longer than 2 bytes of family - * and 14 bytes of data. - * - * Some commercial UNIXes use the old BSD scheme, some use the RFC 2553 - * variant of the old BSD scheme (with "struct sockaddr_storage" rather - * than "struct sockaddr"), and some use the new BSD scheme. - * - * Some versions of GNU libc use neither scheme, but has an "SA_LEN()" - * macro that determines the size based on the address family. Other - * versions don't have "SA_LEN()" (as it was in drafts of RFC 2553 - * but not in the final version). - * - * We assume that a UNIX that doesn't have "getifaddrs()" and doesn't have - * SIOCGLIFCONF, but has SIOCGIFCONF, uses "struct sockaddr" for the - * address in an entry returned by SIOCGIFCONF. - */ -#ifndef SA_LEN -#ifdef HAVE_SOCKADDR_SA_LEN -#define SA_LEN(addr) ((addr)->sa_len) -#else /* HAVE_SOCKADDR_SA_LEN */ -#define SA_LEN(addr) (sizeof (struct sockaddr)) -#endif /* HAVE_SOCKADDR_SA_LEN */ -#endif /* SA_LEN */ - -/* - * This is also fun. - * - * There is no ioctl that returns the amount of space required for all - * the data that SIOCGIFCONF could return, and if a buffer is supplied - * that's not large enough for all the data SIOCGIFCONF could return, - * on at least some platforms it just returns the data that'd fit with - * no indication that there wasn't enough room for all the data, much - * less an indication of how much more room is required. - * - * The only way to ensure that we got all the data is to pass a buffer - * large enough that the amount of space in the buffer *not* filled in - * is greater than the largest possible entry. - * - * We assume that's "sizeof(ifreq.ifr_name)" plus 255, under the assumption - * that no address is more than 255 bytes (on systems where the "sa_len" - * field in a "struct sockaddr" is 1 byte, e.g. newer BSDs, that's the - * case, and addresses are unlikely to be bigger than that in any case). - */ -#define MAX_SA_LEN 255 - -#ifdef HAVE_PROC_NET_DEV -/* - * Get from "/proc/net/dev" all interfaces listed there; if they're - * already in the list of interfaces we have, that won't add another - * instance, but if they're not, that'll add them. - * - * We don't bother getting any addresses for them; it appears you can't - * use SIOCGIFADDR on Linux to get IPv6 addresses for interfaces, and, - * although some other types of addresses can be fetched with SIOCGIFADDR, - * we don't bother with them for now. - * - * We also don't fail if we couldn't open "/proc/net/dev"; we just leave - * the list of interfaces as is. - */ -static int -scan_proc_net_dev(pcap_if_t **devlistp, int fd, char *errbuf) -{ - FILE *proc_net_f; - char linebuf[512]; - int linenum; - unsigned char *p; - char name[512]; /* XXX - pick a size */ - char *q, *saveq; - struct ifreq ifrflags; - int ret = 0; - - proc_net_f = fopen("/proc/net/dev", "r"); - if (proc_net_f == NULL) - return (0); - - for (linenum = 1; - fgets(linebuf, sizeof linebuf, proc_net_f) != NULL; linenum++) { - /* - * Skip the first two lines - they're headers. - */ - if (linenum <= 2) - continue; - - p = &linebuf[0]; - - /* - * Skip leading white space. - */ - while (*p != '\0' && isspace(*p)) - p++; - if (*p == '\0' || *p == '\n') - continue; /* blank line */ - - /* - * Get the interface name. - */ - q = &name[0]; - while (*p != '\0' && !isspace(*p)) { - if (*p == ':') { - /* - * This could be the separator between a - * name and an alias number, or it could be - * the separator between a name with no - * alias number and the next field. - * - * If there's a colon after digits, it - * separates the name and the alias number, - * otherwise it separates the name and the - * next field. - */ - saveq = q; - while (isdigit(*p)) - *q++ = *p++; - if (*p != ':') { - /* - * That was the next field, - * not the alias number. - */ - q = saveq; - } - break; - } else - *q++ = *p++; - } - *q = '\0'; - - /* - * Get the flags for this interface, and skip it if - * it's not up. - */ - strncpy(ifrflags.ifr_name, name, sizeof(ifrflags.ifr_name)); - if (ioctl(fd, SIOCGIFFLAGS, (char *)&ifrflags) < 0) { - if (errno == ENXIO) - continue; - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "SIOCGIFFLAGS: %.*s: %s", - (int)sizeof(ifrflags.ifr_name), - ifrflags.ifr_name, - pcap_strerror(errno)); - ret = -1; - break; - } - if (!(ifrflags.ifr_flags & IFF_UP)) - continue; - - /* - * Add an entry for this interface, with no addresses. - */ - if (pcap_add_if(devlistp, name, ifrflags.ifr_flags, NULL, - errbuf) == -1) { - /* - * Failure. - */ - ret = -1; - break; - } - } - if (ret != -1) { - /* - * Well, we didn't fail for any other reason; did we - * fail due to an error reading the file? - */ - if (ferror(proc_net_f)) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "Error reading /proc/net/dev: %s", - pcap_strerror(errno)); - ret = -1; - } - } - - (void)fclose(proc_net_f); - return (ret); -} -#endif /* HAVE_PROC_NET_DEV */ - -/* - * Get a list of all interfaces that are up and that we can open. - * Returns -1 on error, 0 otherwise. - * The list, as returned through "alldevsp", may be null if no interfaces - * were up and could be opened. - * - * This is the implementation used on platforms that have SIOCGIFCONF but - * don't have any other mechanism for getting a list of interfaces. - * - * XXX - or platforms that have other, better mechanisms but for which - * we don't yet have code to use that mechanism; I think there's a better - * way on Linux, for example. - */ -int -pcap_findalldevs(pcap_if_t **alldevsp, char *errbuf) -{ - pcap_if_t *devlist = NULL; - register int fd; - register struct ifreq *ifrp, *ifend, *ifnext; - int n; - struct ifconf ifc; - char *buf = NULL; - unsigned buf_size; -#if defined (HAVE_SOLARIS) || defined (HAVE_HPUX10_20_OR_LATER) - char *p, *q; -#endif - struct ifreq ifrflags, ifrnetmask, ifrbroadaddr, ifrdstaddr; - struct sockaddr *netmask, *broadaddr, *dstaddr; - size_t netmask_size, broadaddr_size, dstaddr_size; - int ret = 0; - - /* - * Create a socket from which to fetch the list of interfaces. - */ - fd = socket(AF_INET, SOCK_DGRAM, 0); - if (fd < 0) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "socket: %s", pcap_strerror(errno)); - return (-1); - } - - /* - * Start with an 8K buffer, and keep growing the buffer until - * we have more than "sizeof(ifrp->ifr_name) + MAX_SA_LEN" - * bytes left over in the buffer or we fail to get the - * interface list for some reason other than EINVAL (which is - * presumed here to mean "buffer is too small"). - */ - buf_size = 8192; - for (;;) { - buf = malloc(buf_size); - if (buf == NULL) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "malloc: %s", pcap_strerror(errno)); - (void)close(fd); - return (-1); - } - - ifc.ifc_len = buf_size; - ifc.ifc_buf = buf; - memset(buf, 0, buf_size); - if (ioctl(fd, SIOCGIFCONF, (char *)&ifc) < 0 - && errno != EINVAL) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "SIOCGIFCONF: %s", pcap_strerror(errno)); - (void)close(fd); - free(buf); - return (-1); - } - if (ifc.ifc_len < buf_size && - (buf_size - ifc.ifc_len) > sizeof(ifrp->ifr_name) + MAX_SA_LEN) - break; - free(buf); - buf_size *= 2; - } - - ifrp = (struct ifreq *)buf; - ifend = (struct ifreq *)(buf + ifc.ifc_len); - - for (; ifrp < ifend; ifrp = ifnext) { - /* - * XXX - what if this isn't an IPv4 address? Can - * we still get the netmask, etc. with ioctls on - * an IPv4 socket? - * - * The answer is probably platform-dependent, and - * if the answer is "no" on more than one platform, - * the way you work around it is probably platform- - * dependent as well. - */ - n = SA_LEN(&ifrp->ifr_addr) + sizeof(ifrp->ifr_name); - if (n < sizeof(*ifrp)) - ifnext = ifrp + 1; - else - ifnext = (struct ifreq *)((char *)ifrp + n); - - /* - * XXX - The 32-bit compatibility layer for Linux on IA-64 - * is slightly broken. It correctly converts the structures - * to and from kernel land from 64 bit to 32 bit but - * doesn't update ifc.ifc_len, leaving it larger than the - * amount really used. This means we read off the end - * of the buffer and encounter an interface with an - * "empty" name. Since this is highly unlikely to ever - * occur in a valid case we can just finish looking for - * interfaces if we see an empty name. - */ - if (!(*ifrp->ifr_name)) - break; - - /* - * Skip entries that begin with "dummy". - * XXX - what are these? Is this Linux-specific? - * Are there platforms on which we shouldn't do this? - */ - if (strncmp(ifrp->ifr_name, "dummy", 5) == 0) - continue; - - /* - * Get the flags for this interface, and skip it if it's - * not up. - */ - strncpy(ifrflags.ifr_name, ifrp->ifr_name, - sizeof(ifrflags.ifr_name)); - if (ioctl(fd, SIOCGIFFLAGS, (char *)&ifrflags) < 0) { - if (errno == ENXIO) - continue; - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "SIOCGIFFLAGS: %.*s: %s", - (int)sizeof(ifrflags.ifr_name), - ifrflags.ifr_name, - pcap_strerror(errno)); - ret = -1; - break; - } - if (!(ifrflags.ifr_flags & IFF_UP)) - continue; - - /* - * Get the netmask for this address on this interface. - */ - strncpy(ifrnetmask.ifr_name, ifrp->ifr_name, - sizeof(ifrnetmask.ifr_name)); - memcpy(&ifrnetmask.ifr_addr, &ifrp->ifr_addr, - sizeof(ifrnetmask.ifr_addr)); - if (ioctl(fd, SIOCGIFNETMASK, (char *)&ifrnetmask) < 0) { - if (errno == EADDRNOTAVAIL) { - /* - * Not available. - */ - netmask = NULL; - netmask_size = 0; - } else { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "SIOCGIFNETMASK: %.*s: %s", - (int)sizeof(ifrnetmask.ifr_name), - ifrnetmask.ifr_name, - pcap_strerror(errno)); - ret = -1; - break; - } - } else { - netmask = &ifrnetmask.ifr_addr; - netmask_size = SA_LEN(netmask); - } - - /* - * Get the broadcast address for this address on this - * interface (if any). - */ - if (ifrflags.ifr_flags & IFF_BROADCAST) { - strncpy(ifrbroadaddr.ifr_name, ifrp->ifr_name, - sizeof(ifrbroadaddr.ifr_name)); - memcpy(&ifrbroadaddr.ifr_addr, &ifrp->ifr_addr, - sizeof(ifrbroadaddr.ifr_addr)); - if (ioctl(fd, SIOCGIFBRDADDR, - (char *)&ifrbroadaddr) < 0) { - if (errno == EADDRNOTAVAIL) { - /* - * Not available. - */ - broadaddr = NULL; - broadaddr_size = 0; - } else { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "SIOCGIFBRDADDR: %.*s: %s", - (int)sizeof(ifrbroadaddr.ifr_name), - ifrbroadaddr.ifr_name, - pcap_strerror(errno)); - ret = -1; - break; - } - } else { - broadaddr = &ifrbroadaddr.ifr_broadaddr; - broadaddr_size = SA_LEN(broadaddr); - } - } else { - /* - * Not a broadcast interface, so no broadcast - * address. - */ - broadaddr = NULL; - broadaddr_size = 0; - } - - /* - * Get the destination address for this address on this - * interface (if any). - */ - if (ifrflags.ifr_flags & IFF_POINTOPOINT) { - strncpy(ifrdstaddr.ifr_name, ifrp->ifr_name, - sizeof(ifrdstaddr.ifr_name)); - memcpy(&ifrdstaddr.ifr_addr, &ifrp->ifr_addr, - sizeof(ifrdstaddr.ifr_addr)); - if (ioctl(fd, SIOCGIFDSTADDR, - (char *)&ifrdstaddr) < 0) { - if (errno == EADDRNOTAVAIL) { - /* - * Not available. - */ - dstaddr = NULL; - dstaddr_size = 0; - } else { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "SIOCGIFDSTADDR: %.*s: %s", - (int)sizeof(ifrdstaddr.ifr_name), - ifrdstaddr.ifr_name, - pcap_strerror(errno)); - ret = -1; - break; - } - } else { - dstaddr = &ifrdstaddr.ifr_dstaddr; - dstaddr_size = SA_LEN(dstaddr); - } - } else { - /* - * Not a point-to-point interface, so no destination - * address. - */ - dstaddr = NULL; - dstaddr_size = 0; - } - -#if defined (HAVE_SOLARIS) || defined (HAVE_HPUX10_20_OR_LATER) - /* - * If this entry has a colon followed by a number at - * the end, it's a logical interface. Those are just - * the way you assign multiple IP addresses to a real - * interface, so an entry for a logical interface should - * be treated like the entry for the real interface; - * we do that by stripping off the ":" and the number. - */ - p = strchr(ifrp->ifr_name, ':'); - if (p != NULL) { - /* - * We have a ":"; is it followed by a number? - */ - q = p + 1; - while (isdigit((unsigned char)*q)) - q++; - if (*q == '\0') { - /* - * All digits after the ":" until the end. - * Strip off the ":" and everything after - * it. - */ - *p = '\0'; - } - } -#endif - - /* - * Add information for this address to the list. - */ - if (add_addr_to_iflist(&devlist, ifrp->ifr_name, - ifrflags.ifr_flags, &ifrp->ifr_addr, - SA_LEN(&ifrp->ifr_addr), netmask, netmask_size, - broadaddr, broadaddr_size, dstaddr, dstaddr_size, - errbuf) < 0) { - ret = -1; - break; - } - } - free(buf); - -#ifdef HAVE_PROC_NET_DEV - if (ret != -1) { - /* - * We haven't had any errors yet; now read "/proc/net/dev", - * and add to the list of interfaces all interfaces listed - * there that we don't already have, because, on Linux, - * SIOCGIFCONF reports only interfaces with IPv4 addresses, - * so you need to read "/proc/net/dev" to get the names of - * the rest of the interfaces. - */ - ret = scan_proc_net_dev(&devlist, fd, errbuf); - } -#endif - (void)close(fd); - - if (ret != -1) { - /* - * We haven't had any errors yet; do any platform-specific - * operations to add devices. - */ - if (pcap_platform_finddevs(&devlist, errbuf) < 0) - ret = -1; - } - - if (ret == -1) { - /* - * We had an error; free the list we've been constructing. - */ - if (devlist != NULL) { - pcap_freealldevs(devlist); - devlist = NULL; - } - } - - *alldevsp = devlist; - return (ret); -} diff --git a/contrib/libpcap/fad-glifc.c b/contrib/libpcap/fad-glifc.c deleted file mode 100644 index 8a86a3d..0000000 --- a/contrib/libpcap/fad-glifc.c +++ /dev/null @@ -1,386 +0,0 @@ -/* -*- Mode: c; tab-width: 8; indent-tabs-mode: 1; c-basic-offset: 8; -*- */ -/* - * Copyright (c) 1994, 1995, 1996, 1997, 1998 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the Computer Systems - * Engineering Group at Lawrence Berkeley Laboratory. - * 4. Neither the name of the University nor of the Laboratory may be used - * to endorse or promote products derived from this software without - * specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/fad-glifc.c,v 1.5.2.1 2005/04/19 00:54:16 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <sys/param.h> -#include <sys/file.h> -#include <sys/ioctl.h> -#include <sys/socket.h> -#ifdef HAVE_SYS_SOCKIO_H -#include <sys/sockio.h> -#endif -#include <sys/time.h> /* concession to AIX */ - -struct mbuf; /* Squelch compiler warnings on some platforms for */ -struct rtentry; /* declarations in <net/if.h> */ -#include <net/if.h> -#include <netinet/in.h> - -#include <ctype.h> -#include <errno.h> -#include <memory.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include "pcap-int.h" - -#ifdef HAVE_OS_PROTO_H -#include "os-proto.h" -#endif - -/* - * Get a list of all interfaces that are up and that we can open. - * Returns -1 on error, 0 otherwise. - * The list, as returned through "alldevsp", may be null if no interfaces - * were up and could be opened. - * - * This is the implementation used on platforms that have SIOCLGIFCONF - * but don't have "getifaddrs()". (Solaris 8 and later; we use - * SIOCLGIFCONF rather than SIOCGIFCONF in order to get IPv6 addresses.) - */ -int -pcap_findalldevs(pcap_if_t **alldevsp, char *errbuf) -{ - pcap_if_t *devlist = NULL; - register int fd4, fd6, fd; - register struct lifreq *ifrp, *ifend; - struct lifnum ifn; - struct lifconf ifc; - char *buf = NULL; - unsigned buf_size; -#ifdef HAVE_SOLARIS - char *p, *q; -#endif - struct lifreq ifrflags, ifrnetmask, ifrbroadaddr, ifrdstaddr; - struct sockaddr *netmask, *broadaddr, *dstaddr; - int ret = 0; - - /* - * Create a socket from which to fetch the list of interfaces, - * and from which to fetch IPv4 information. - */ - fd4 = socket(AF_INET, SOCK_DGRAM, 0); - if (fd4 < 0) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "socket: %s", pcap_strerror(errno)); - return (-1); - } - - /* - * Create a socket from which to fetch IPv6 information. - */ - fd6 = socket(AF_INET6, SOCK_DGRAM, 0); - if (fd6 < 0) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "socket: %s", pcap_strerror(errno)); - (void)close(fd4); - return (-1); - } - - /* - * How many entries will SIOCGLIFCONF return? - */ - ifn.lifn_family = AF_UNSPEC; - ifn.lifn_flags = 0; - ifn.lifn_count = 0; - if (ioctl(fd4, SIOCGLIFNUM, (char *)&ifn) < 0) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "SIOCGLIFNUM: %s", pcap_strerror(errno)); - (void)close(fd6); - (void)close(fd4); - return (-1); - } - - /* - * Allocate a buffer for those entries. - */ - buf_size = ifn.lifn_count * sizeof (struct lifreq); - buf = malloc(buf_size); - if (buf == NULL) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "malloc: %s", pcap_strerror(errno)); - (void)close(fd6); - (void)close(fd4); - return (-1); - } - - /* - * Get the entries. - */ - ifc.lifc_len = buf_size; - ifc.lifc_buf = buf; - ifc.lifc_family = AF_UNSPEC; - ifc.lifc_flags = 0; - memset(buf, 0, buf_size); - if (ioctl(fd4, SIOCGLIFCONF, (char *)&ifc) < 0) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "SIOCGLIFCONF: %s", pcap_strerror(errno)); - (void)close(fd6); - (void)close(fd4); - free(buf); - return (-1); - } - - /* - * Loop over the entries. - */ - ifrp = (struct lifreq *)buf; - ifend = (struct lifreq *)(buf + ifc.lifc_len); - - for (; ifrp < ifend; ifrp++) { - /* - * IPv6 or not? - */ - if (((struct sockaddr *)&ifrp->lifr_addr)->sa_family == AF_INET6) - fd = fd6; - else - fd = fd4; - - /* - * Skip entries that begin with "dummy". - * XXX - what are these? Is this Linux-specific? - * Are there platforms on which we shouldn't do this? - */ - if (strncmp(ifrp->lifr_name, "dummy", 5) == 0) - continue; - -#ifdef HAVE_SOLARIS - /* - * Skip entries that have a ":" followed by a number - * at the end - those are Solaris virtual interfaces - * on which you can't capture. - */ - p = strchr(ifrp->lifr_name, ':'); - if (p != NULL) { - /* - * We have a ":"; is it followed by a number? - */ - while (isdigit((unsigned char)*p)) - p++; - if (*p == '\0') { - /* - * All digits after the ":" until the end. - */ - continue; - } - } -#endif - - /* - * Get the flags for this interface, and skip it if it's - * not up. - */ - strncpy(ifrflags.lifr_name, ifrp->lifr_name, - sizeof(ifrflags.lifr_name)); - if (ioctl(fd, SIOCGLIFFLAGS, (char *)&ifrflags) < 0) { - if (errno == ENXIO) - continue; - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "SIOCGLIFFLAGS: %.*s: %s", - (int)sizeof(ifrflags.lifr_name), - ifrflags.lifr_name, - pcap_strerror(errno)); - ret = -1; - break; - } - if (!(ifrflags.lifr_flags & IFF_UP)) - continue; - - /* - * Get the netmask for this address on this interface. - */ - strncpy(ifrnetmask.lifr_name, ifrp->lifr_name, - sizeof(ifrnetmask.lifr_name)); - memcpy(&ifrnetmask.lifr_addr, &ifrp->lifr_addr, - sizeof(ifrnetmask.lifr_addr)); - if (ioctl(fd, SIOCGLIFNETMASK, (char *)&ifrnetmask) < 0) { - if (errno == EADDRNOTAVAIL) { - /* - * Not available. - */ - netmask = NULL; - } else { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "SIOCGLIFNETMASK: %.*s: %s", - (int)sizeof(ifrnetmask.lifr_name), - ifrnetmask.lifr_name, - pcap_strerror(errno)); - ret = -1; - break; - } - } else - netmask = (struct sockaddr *)&ifrnetmask.lifr_addr; - - /* - * Get the broadcast address for this address on this - * interface (if any). - */ - if (ifrflags.lifr_flags & IFF_BROADCAST) { - strncpy(ifrbroadaddr.lifr_name, ifrp->lifr_name, - sizeof(ifrbroadaddr.lifr_name)); - memcpy(&ifrbroadaddr.lifr_addr, &ifrp->lifr_addr, - sizeof(ifrbroadaddr.lifr_addr)); - if (ioctl(fd, SIOCGLIFBRDADDR, - (char *)&ifrbroadaddr) < 0) { - if (errno == EADDRNOTAVAIL) { - /* - * Not available. - */ - broadaddr = NULL; - } else { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "SIOCGLIFBRDADDR: %.*s: %s", - (int)sizeof(ifrbroadaddr.lifr_name), - ifrbroadaddr.lifr_name, - pcap_strerror(errno)); - ret = -1; - break; - } - } else - broadaddr = (struct sockaddr *)&ifrbroadaddr.lifr_broadaddr; - } else { - /* - * Not a broadcast interface, so no broadcast - * address. - */ - broadaddr = NULL; - } - - /* - * Get the destination address for this address on this - * interface (if any). - */ - if (ifrflags.lifr_flags & IFF_POINTOPOINT) { - strncpy(ifrdstaddr.lifr_name, ifrp->lifr_name, - sizeof(ifrdstaddr.lifr_name)); - memcpy(&ifrdstaddr.lifr_addr, &ifrp->lifr_addr, - sizeof(ifrdstaddr.lifr_addr)); - if (ioctl(fd, SIOCGLIFDSTADDR, - (char *)&ifrdstaddr) < 0) { - if (errno == EADDRNOTAVAIL) { - /* - * Not available. - */ - dstaddr = NULL; - } else { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "SIOCGLIFDSTADDR: %.*s: %s", - (int)sizeof(ifrdstaddr.lifr_name), - ifrdstaddr.lifr_name, - pcap_strerror(errno)); - ret = -1; - break; - } - } else - dstaddr = (struct sockaddr *)&ifrdstaddr.lifr_dstaddr; - } else - dstaddr = NULL; - -#ifdef HAVE_SOLARIS - /* - * If this entry has a colon followed by a number at - * the end, it's a logical interface. Those are just - * the way you assign multiple IP addresses to a real - * interface, so an entry for a logical interface should - * be treated like the entry for the real interface; - * we do that by stripping off the ":" and the number. - */ - p = strchr(ifrp->lifr_name, ':'); - if (p != NULL) { - /* - * We have a ":"; is it followed by a number? - */ - q = p + 1; - while (isdigit((unsigned char)*q)) - q++; - if (*q == '\0') { - /* - * All digits after the ":" until the end. - * Strip off the ":" and everything after - * it. - */ - *p = '\0'; - } - } -#endif - - /* - * Add information for this address to the list. - */ - if (add_addr_to_iflist(&devlist, ifrp->lifr_name, - ifrflags.lifr_flags, (struct sockaddr *)&ifrp->lifr_addr, - sizeof (struct sockaddr_storage), - netmask, sizeof (struct sockaddr_storage), - broadaddr, sizeof (struct sockaddr_storage), - dstaddr, sizeof (struct sockaddr_storage), errbuf) < 0) { - ret = -1; - break; - } - } - free(buf); - (void)close(fd6); - (void)close(fd4); - - if (ret != -1) { - /* - * We haven't had any errors yet; do any platform-specific - * operations to add devices. - */ - if (pcap_platform_finddevs(&devlist, errbuf) < 0) - ret = -1; - } - - if (ret == -1) { - /* - * We had an error; free the list we've been constructing. - */ - if (devlist != NULL) { - pcap_freealldevs(devlist); - devlist = NULL; - } - } - - *alldevsp = devlist; - return (ret); -} diff --git a/contrib/libpcap/fad-null.c b/contrib/libpcap/fad-null.c deleted file mode 100644 index 676ff71..0000000 --- a/contrib/libpcap/fad-null.c +++ /dev/null @@ -1,65 +0,0 @@ -/* -*- Mode: c; tab-width: 8; indent-tabs-mode: 1; c-basic-offset: 8; -*- */ -/* - * Copyright (c) 1994, 1995, 1996, 1997, 1998 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the Computer Systems - * Engineering Group at Lawrence Berkeley Laboratory. - * 4. Neither the name of the University nor of the Laboratory may be used - * to endorse or promote products derived from this software without - * specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/fad-null.c,v 1.2 2003/11/15 23:23:58 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <pcap.h> - -/* - * Get a list of all interfaces that are up and that we can open. - * Returns -1 on error, 0 otherwise. - * The list, as returned through "alldevsp", may be null if no interfaces - * were up and could be opened. - * - * This is the implementation used on platforms that have no support for - * packet capture. - */ -int -pcap_findalldevs(pcap_if_t **alldevsp, char *errbuf) -{ - /* - * Succeed, but don't return any interfaces; we return only those - * we can open, and we can't open any if there's no support - * for packet capture. - */ - *alldevsp = NULL; - return (0); -} diff --git a/contrib/libpcap/fad-win32.c b/contrib/libpcap/fad-win32.c deleted file mode 100644 index 4d2c01e..0000000 --- a/contrib/libpcap/fad-win32.c +++ /dev/null @@ -1,318 +0,0 @@ -/* - * Copyright (c) 2002 - 2005 NetGroup, Politecnico di Torino (Italy) - * Copyright (c) 2005 - 2006 CACE Technologies, Davis (California) - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the Politecnico di Torino, CACE Technologies - * nor the names of its contributors may be used to endorse or promote - * products derived from this software without specific prior written - * permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/fad-win32.c,v 1.11.2.3 2006/02/22 17:09:32 gianluca Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <pcap.h> -#include <pcap-int.h> -#include <Packet32.h> - -#include <errno.h> - -/* - * Add an entry to the list of addresses for an interface. - * "curdev" is the entry for that interface. - */ -static int -add_addr_to_list(pcap_if_t *curdev, struct sockaddr *addr, - struct sockaddr *netmask, struct sockaddr *broadaddr, - struct sockaddr *dstaddr, char *errbuf) -{ - pcap_addr_t *curaddr, *prevaddr, *nextaddr; - - /* - * Allocate the new entry and fill it in. - */ - curaddr = (pcap_addr_t*)malloc(sizeof(pcap_addr_t)); - if (curaddr == NULL) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "malloc: %s", pcap_strerror(errno)); - return (-1); - } - - curaddr->next = NULL; - if (addr != NULL) { - curaddr->addr = (struct sockaddr*)dup_sockaddr(addr, sizeof(struct sockaddr_storage)); - if (curaddr->addr == NULL) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "malloc: %s", pcap_strerror(errno)); - free(curaddr); - return (-1); - } - } else - curaddr->addr = NULL; - - if (netmask != NULL) { - curaddr->netmask = (struct sockaddr*)dup_sockaddr(netmask, sizeof(struct sockaddr_storage)); - if (curaddr->netmask == NULL) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "malloc: %s", pcap_strerror(errno)); - free(curaddr); - return (-1); - } - } else - curaddr->netmask = NULL; - - if (broadaddr != NULL) { - curaddr->broadaddr = (struct sockaddr*)dup_sockaddr(broadaddr, sizeof(struct sockaddr_storage)); - if (curaddr->broadaddr == NULL) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "malloc: %s", pcap_strerror(errno)); - free(curaddr); - return (-1); - } - } else - curaddr->broadaddr = NULL; - - if (dstaddr != NULL) { - curaddr->dstaddr = (struct sockaddr*)dup_sockaddr(dstaddr, sizeof(struct sockaddr_storage)); - if (curaddr->dstaddr == NULL) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "malloc: %s", pcap_strerror(errno)); - free(curaddr); - return (-1); - } - } else - curaddr->dstaddr = NULL; - - /* - * Find the end of the list of addresses. - */ - for (prevaddr = curdev->addresses; prevaddr != NULL; prevaddr = nextaddr) { - nextaddr = prevaddr->next; - if (nextaddr == NULL) { - /* - * This is the end of the list. - */ - break; - } - } - - if (prevaddr == NULL) { - /* - * The list was empty; this is the first member. - */ - curdev->addresses = curaddr; - } else { - /* - * "prevaddr" is the last member of the list; append - * this member to it. - */ - prevaddr->next = curaddr; - } - - return (0); -} - - -static int -pcap_add_if_win32(pcap_if_t **devlist, char *name, const char *desc, - char *errbuf) -{ - pcap_if_t *curdev; - npf_if_addr if_addrs[MAX_NETWORK_ADDRESSES]; - LONG if_addr_size; - int res = 0; - - if_addr_size = MAX_NETWORK_ADDRESSES; - - /* - * Add an entry for this interface, with no addresses. - */ - if (add_or_find_if(&curdev, devlist, name, 0, desc, errbuf) == -1) { - /* - * Failure. - */ - return (-1); - } - - /* - * Get the list of addresses for the interface. - */ - if (!PacketGetNetInfoEx((void *)name, if_addrs, &if_addr_size)) { - /* - * Failure. - * - * We don't return an error, because this can happen with - * NdisWan interfaces, and we want to supply them even - * if we can't supply their addresses. - * - * We return an entry with an empty address list. - */ - return (0); - } - - /* - * Now add the addresses. - */ - while (if_addr_size-- > 0) { - /* - * "curdev" is an entry for this interface; add an entry for - * this address to its list of addresses. - */ - if(curdev == NULL) - break; - res = add_addr_to_list(curdev, - (struct sockaddr *)&if_addrs[if_addr_size].IPAddress, - (struct sockaddr *)&if_addrs[if_addr_size].SubnetMask, - (struct sockaddr *)&if_addrs[if_addr_size].Broadcast, - NULL, - errbuf); - if (res == -1) { - /* - * Failure. - */ - break; - } - } - - return (res); -} - - -/* - * Get a list of all interfaces that are up and that we can open. - * Returns -1 on error, 0 otherwise. - * The list, as returned through "alldevsp", may be null if no interfaces - * were up and could be opened. - * - * Win32 implementation, based on WinPcap - */ -int -pcap_findalldevs(pcap_if_t **alldevsp, char *errbuf) -{ - pcap_if_t *devlist = NULL; - int ret = 0; - const char *desc; - char *AdaptersName; - ULONG NameLength; - char *name; - - if (!PacketGetAdapterNames(NULL, &NameLength)) - { - DWORD last_error = GetLastError(); - - if (last_error != ERROR_INSUFFICIENT_BUFFER) - { - snprintf(errbuf, PCAP_ERRBUF_SIZE, - "PacketGetAdapterNames: %s", - pcap_win32strerror()); - return (-1); - } - } - - if (NameLength > 0) - AdaptersName = (char*) malloc(NameLength); - else - { - *alldevsp = NULL; - return 0; - } - if (AdaptersName == NULL) - { - snprintf(errbuf, PCAP_ERRBUF_SIZE, "Cannot allocate enough memory to list the adapters."); - return (-1); - } - - if (!PacketGetAdapterNames(AdaptersName, &NameLength)) { - snprintf(errbuf, PCAP_ERRBUF_SIZE, - "PacketGetAdapterNames: %s", - pcap_win32strerror()); - free(AdaptersName); - return (-1); - } - - /* - * "PacketGetAdapterNames()" returned a list of - * null-terminated ASCII interface name strings, - * terminated by a null string, followed by a list - * of null-terminated ASCII interface description - * strings, terminated by a null string. - * This means there are two ASCII nulls at the end - * of the first list. - * - * Find the end of the first list; that's the - * beginning of the second list. - */ - desc = &AdaptersName[0]; - while (*desc != '\0' || *(desc + 1) != '\0') - desc++; - - /* - * Found it - "desc" points to the first of the two - * nulls at the end of the list of names, so the - * first byte of the list of descriptions is two bytes - * after it. - */ - desc += 2; - - /* - * Loop over the elements in the first list. - */ - name = &AdaptersName[0]; - while (*name != '\0') { - /* - * Add an entry for this interface. - */ - if (pcap_add_if_win32(&devlist, name, desc, errbuf) == -1) { - /* - * Failure. - */ - ret = -1; - break; - } - name += strlen(name) + 1; - desc += strlen(desc) + 1; - } - - if (ret == -1) { - /* - * We had an error; free the list we've been constructing. - */ - if (devlist != NULL) { - pcap_freealldevs(devlist); - devlist = NULL; - } - } - - *alldevsp = devlist; - free(AdaptersName); - return (ret); -} diff --git a/contrib/libpcap/gencode.c b/contrib/libpcap/gencode.c deleted file mode 100644 index d2cae21..0000000 --- a/contrib/libpcap/gencode.c +++ /dev/null @@ -1,7252 +0,0 @@ -/*#define CHASE_CHAIN*/ -/* - * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/gencode.c,v 1.221.2.53 2007/09/12 19:17:24 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#ifdef WIN32 -#include <pcap-stdinc.h> -#else /* WIN32 */ -#include <sys/types.h> -#include <sys/socket.h> -#endif /* WIN32 */ - -/* - * XXX - why was this included even on UNIX? - */ -#ifdef __MINGW32__ -#include "IP6_misc.h" -#endif - -#ifndef WIN32 - -#ifdef __NetBSD__ -#include <sys/param.h> -#endif - -#include <netinet/in.h> - -#endif /* WIN32 */ - -#include <stdlib.h> -#include <string.h> -#include <memory.h> -#include <setjmp.h> -#include <stdarg.h> - -#ifdef MSDOS -#include "pcap-dos.h" -#endif - -#include "pcap-int.h" - -#include "ethertype.h" -#include "nlpid.h" -#include "llc.h" -#include "gencode.h" -#include "atmuni31.h" -#include "sunatmpos.h" -#include "ppp.h" -#include "sll.h" -#include "arcnet.h" -#ifdef HAVE_NET_PFVAR_H -#include <sys/socket.h> -#include <net/if.h> -#include <net/pfvar.h> -#include <net/if_pflog.h> -#endif -#ifndef offsetof -#define offsetof(s, e) ((size_t)&((s *)0)->e) -#endif -#ifdef INET6 -#ifndef WIN32 -#include <netdb.h> /* for "struct addrinfo" */ -#endif /* WIN32 */ -#endif /*INET6*/ -#include <pcap-namedb.h> - -#define ETHERMTU 1500 - -#ifndef IPPROTO_SCTP -#define IPPROTO_SCTP 132 -#endif - -#ifdef HAVE_OS_PROTO_H -#include "os-proto.h" -#endif - -#define JMP(c) ((c)|BPF_JMP|BPF_K) - -/* Locals */ -static jmp_buf top_ctx; -static pcap_t *bpf_pcap; - -#ifdef WIN32 -/* Hack for updating VLAN, MPLS, and PPPoE offsets. */ -static u_int orig_linktype = (u_int)-1, orig_nl = (u_int)-1, label_stack_depth = (u_int)-1; -#else -static u_int orig_linktype = -1U, orig_nl = -1U, label_stack_depth = -1U; -#endif - -/* XXX */ -#ifdef PCAP_FDDIPAD -static int pcap_fddipad; -#endif - -/* VARARGS */ -void -bpf_error(const char *fmt, ...) -{ - va_list ap; - - va_start(ap, fmt); - if (bpf_pcap != NULL) - (void)vsnprintf(pcap_geterr(bpf_pcap), PCAP_ERRBUF_SIZE, - fmt, ap); - va_end(ap); - longjmp(top_ctx, 1); - /* NOTREACHED */ -} - -static void init_linktype(pcap_t *); - -static int alloc_reg(void); -static void free_reg(int); - -static struct block *root; - -/* - * Value passed to gen_load_a() to indicate what the offset argument - * is relative to. - */ -enum e_offrel { - OR_PACKET, /* relative to the beginning of the packet */ - OR_LINK, /* relative to the link-layer header */ - OR_NET, /* relative to the network-layer header */ - OR_NET_NOSNAP, /* relative to the network-layer header, with no SNAP header at the link layer */ - OR_TRAN_IPV4, /* relative to the transport-layer header, with IPv4 network layer */ - OR_TRAN_IPV6 /* relative to the transport-layer header, with IPv6 network layer */ -}; - -/* - * We divy out chunks of memory rather than call malloc each time so - * we don't have to worry about leaking memory. It's probably - * not a big deal if all this memory was wasted but if this ever - * goes into a library that would probably not be a good idea. - * - * XXX - this *is* in a library.... - */ -#define NCHUNKS 16 -#define CHUNK0SIZE 1024 -struct chunk { - u_int n_left; - void *m; -}; - -static struct chunk chunks[NCHUNKS]; -static int cur_chunk; - -static void *newchunk(u_int); -static void freechunks(void); -static inline struct block *new_block(int); -static inline struct slist *new_stmt(int); -static struct block *gen_retblk(int); -static inline void syntax(void); - -static void backpatch(struct block *, struct block *); -static void merge(struct block *, struct block *); -static struct block *gen_cmp(enum e_offrel, u_int, u_int, bpf_int32); -static struct block *gen_cmp_gt(enum e_offrel, u_int, u_int, bpf_int32); -static struct block *gen_cmp_ge(enum e_offrel, u_int, u_int, bpf_int32); -static struct block *gen_cmp_lt(enum e_offrel, u_int, u_int, bpf_int32); -static struct block *gen_cmp_le(enum e_offrel, u_int, u_int, bpf_int32); -static struct block *gen_mcmp(enum e_offrel, u_int, u_int, bpf_int32, - bpf_u_int32); -static struct block *gen_bcmp(enum e_offrel, u_int, u_int, const u_char *); -static struct block *gen_ncmp(enum e_offrel, bpf_u_int32, bpf_u_int32, - bpf_u_int32, bpf_u_int32, int, bpf_int32); -static struct slist *gen_load_llrel(u_int, u_int); -static struct slist *gen_load_a(enum e_offrel, u_int, u_int); -static struct slist *gen_loadx_iphdrlen(void); -static struct block *gen_uncond(int); -static inline struct block *gen_true(void); -static inline struct block *gen_false(void); -static struct block *gen_ether_linktype(int); -static struct block *gen_linux_sll_linktype(int); -static void insert_radiotap_load_llprefixlen(struct block *); -static void insert_ppi_load_llprefixlen(struct block *); -static void insert_load_llprefixlen(struct block *); -static struct slist *gen_llprefixlen(void); -static struct block *gen_linktype(int); -static struct block *gen_snap(bpf_u_int32, bpf_u_int32, u_int); -static struct block *gen_llc_linktype(int); -static struct block *gen_hostop(bpf_u_int32, bpf_u_int32, int, int, u_int, u_int); -#ifdef INET6 -static struct block *gen_hostop6(struct in6_addr *, struct in6_addr *, int, int, u_int, u_int); -#endif -static struct block *gen_ahostop(const u_char *, int); -static struct block *gen_ehostop(const u_char *, int); -static struct block *gen_fhostop(const u_char *, int); -static struct block *gen_thostop(const u_char *, int); -static struct block *gen_wlanhostop(const u_char *, int); -static struct block *gen_ipfchostop(const u_char *, int); -static struct block *gen_dnhostop(bpf_u_int32, int); -static struct block *gen_mpls_linktype(int); -static struct block *gen_host(bpf_u_int32, bpf_u_int32, int, int, int); -#ifdef INET6 -static struct block *gen_host6(struct in6_addr *, struct in6_addr *, int, int, int); -#endif -#ifndef INET6 -static struct block *gen_gateway(const u_char *, bpf_u_int32 **, int, int); -#endif -static struct block *gen_ipfrag(void); -static struct block *gen_portatom(int, bpf_int32); -static struct block *gen_portrangeatom(int, bpf_int32, bpf_int32); -#ifdef INET6 -static struct block *gen_portatom6(int, bpf_int32); -static struct block *gen_portrangeatom6(int, bpf_int32, bpf_int32); -#endif -struct block *gen_portop(int, int, int); -static struct block *gen_port(int, int, int); -struct block *gen_portrangeop(int, int, int, int); -static struct block *gen_portrange(int, int, int, int); -#ifdef INET6 -struct block *gen_portop6(int, int, int); -static struct block *gen_port6(int, int, int); -struct block *gen_portrangeop6(int, int, int, int); -static struct block *gen_portrange6(int, int, int, int); -#endif -static int lookup_proto(const char *, int); -static struct block *gen_protochain(int, int, int); -static struct block *gen_proto(int, int, int); -static struct slist *xfer_to_x(struct arth *); -static struct slist *xfer_to_a(struct arth *); -static struct block *gen_mac_multicast(int); -static struct block *gen_len(int, int); - -static struct block *gen_ppi_dlt_check(void); -static struct block *gen_msg_abbrev(int type); - -static void * -newchunk(n) - u_int n; -{ - struct chunk *cp; - int k; - size_t size; - -#ifndef __NetBSD__ - /* XXX Round up to nearest long. */ - n = (n + sizeof(long) - 1) & ~(sizeof(long) - 1); -#else - /* XXX Round up to structure boundary. */ - n = ALIGN(n); -#endif - - cp = &chunks[cur_chunk]; - if (n > cp->n_left) { - ++cp, k = ++cur_chunk; - if (k >= NCHUNKS) - bpf_error("out of memory"); - size = CHUNK0SIZE << k; - cp->m = (void *)malloc(size); - if (cp->m == NULL) - bpf_error("out of memory"); - memset((char *)cp->m, 0, size); - cp->n_left = size; - if (n > size) - bpf_error("out of memory"); - } - cp->n_left -= n; - return (void *)((char *)cp->m + cp->n_left); -} - -static void -freechunks() -{ - int i; - - cur_chunk = 0; - for (i = 0; i < NCHUNKS; ++i) - if (chunks[i].m != NULL) { - free(chunks[i].m); - chunks[i].m = NULL; - } -} - -/* - * A strdup whose allocations are freed after code generation is over. - */ -char * -sdup(s) - register const char *s; -{ - int n = strlen(s) + 1; - char *cp = newchunk(n); - - strlcpy(cp, s, n); - return (cp); -} - -static inline struct block * -new_block(code) - int code; -{ - struct block *p; - - p = (struct block *)newchunk(sizeof(*p)); - p->s.code = code; - p->head = p; - - return p; -} - -static inline struct slist * -new_stmt(code) - int code; -{ - struct slist *p; - - p = (struct slist *)newchunk(sizeof(*p)); - p->s.code = code; - - return p; -} - -static struct block * -gen_retblk(v) - int v; -{ - struct block *b = new_block(BPF_RET|BPF_K); - - b->s.k = v; - return b; -} - -static inline void -syntax() -{ - bpf_error("syntax error in filter expression"); -} - -static bpf_u_int32 netmask; -static int snaplen; -int no_optimize; - -int -pcap_compile(pcap_t *p, struct bpf_program *program, - const char *buf, int optimize, bpf_u_int32 mask) -{ - extern int n_errors; - const char * volatile xbuf = buf; - int len; - - no_optimize = 0; - n_errors = 0; - root = NULL; - bpf_pcap = p; - if (setjmp(top_ctx)) { - lex_cleanup(); - freechunks(); - return (-1); - } - - netmask = mask; - - snaplen = pcap_snapshot(p); - if (snaplen == 0) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, - "snaplen of 0 rejects all packets"); - return -1; - } - - lex_init(xbuf ? xbuf : ""); - init_linktype(p); - (void)pcap_parse(); - - if (n_errors) - syntax(); - - if (root == NULL) - root = gen_retblk(snaplen); - - if (optimize && !no_optimize) { - bpf_optimize(&root); - if (root == NULL || - (root->s.code == (BPF_RET|BPF_K) && root->s.k == 0)) - bpf_error("expression rejects all packets"); - } - program->bf_insns = icode_to_fcode(root, &len); - program->bf_len = len; - - lex_cleanup(); - freechunks(); - return (0); -} - -/* - * entry point for using the compiler with no pcap open - * pass in all the stuff that is needed explicitly instead. - */ -int -pcap_compile_nopcap(int snaplen_arg, int linktype_arg, - struct bpf_program *program, - const char *buf, int optimize, bpf_u_int32 mask) -{ - pcap_t *p; - int ret; - - p = pcap_open_dead(linktype_arg, snaplen_arg); - if (p == NULL) - return (-1); - ret = pcap_compile(p, program, buf, optimize, mask); - pcap_close(p); - return (ret); -} - -/* - * Clean up a "struct bpf_program" by freeing all the memory allocated - * in it. - */ -void -pcap_freecode(struct bpf_program *program) -{ - program->bf_len = 0; - if (program->bf_insns != NULL) { - free((char *)program->bf_insns); - program->bf_insns = NULL; - } -} - -/* - * Backpatch the blocks in 'list' to 'target'. The 'sense' field indicates - * which of the jt and jf fields has been resolved and which is a pointer - * back to another unresolved block (or nil). At least one of the fields - * in each block is already resolved. - */ -static void -backpatch(list, target) - struct block *list, *target; -{ - struct block *next; - - while (list) { - if (!list->sense) { - next = JT(list); - JT(list) = target; - } else { - next = JF(list); - JF(list) = target; - } - list = next; - } -} - -/* - * Merge the lists in b0 and b1, using the 'sense' field to indicate - * which of jt and jf is the link. - */ -static void -merge(b0, b1) - struct block *b0, *b1; -{ - register struct block **p = &b0; - - /* Find end of list. */ - while (*p) - p = !((*p)->sense) ? &JT(*p) : &JF(*p); - - /* Concatenate the lists. */ - *p = b1; -} - - -void -finish_parse(p) - struct block *p; -{ - struct block *ppi_dlt_check; - - ppi_dlt_check = gen_ppi_dlt_check(); - - if (ppi_dlt_check != NULL) - { - gen_and(ppi_dlt_check, p); - } - - backpatch(p, gen_retblk(snaplen)); - p->sense = !p->sense; - backpatch(p, gen_retblk(0)); - root = p->head; - - /* - * Insert before the statements of the first (root) block any - * statements needed to load the lengths of any variable-length - * headers into registers. - * - * XXX - a fancier strategy would be to insert those before the - * statements of all blocks that use those lengths and that - * have no predecessors that use them, so that we only compute - * the lengths if we need them. There might be even better - * approaches than that. However, as we're currently only - * handling variable-length radiotap headers, and as all - * filtering expressions other than raw link[M:N] tests - * require the length of that header, doing more for that - * header length isn't really worth the effort. - */ - - insert_load_llprefixlen(root); -} - -void -gen_and(b0, b1) - struct block *b0, *b1; -{ - backpatch(b0, b1->head); - b0->sense = !b0->sense; - b1->sense = !b1->sense; - merge(b1, b0); - b1->sense = !b1->sense; - b1->head = b0->head; -} - -void -gen_or(b0, b1) - struct block *b0, *b1; -{ - b0->sense = !b0->sense; - backpatch(b0, b1->head); - b0->sense = !b0->sense; - merge(b1, b0); - b1->head = b0->head; -} - -void -gen_not(b) - struct block *b; -{ - b->sense = !b->sense; -} - -static struct block * -gen_cmp(offrel, offset, size, v) - enum e_offrel offrel; - u_int offset, size; - bpf_int32 v; -{ - return gen_ncmp(offrel, offset, size, 0xffffffff, BPF_JEQ, 0, v); -} - -static struct block * -gen_cmp_gt(offrel, offset, size, v) - enum e_offrel offrel; - u_int offset, size; - bpf_int32 v; -{ - return gen_ncmp(offrel, offset, size, 0xffffffff, BPF_JGT, 0, v); -} - -static struct block * -gen_cmp_ge(offrel, offset, size, v) - enum e_offrel offrel; - u_int offset, size; - bpf_int32 v; -{ - return gen_ncmp(offrel, offset, size, 0xffffffff, BPF_JGE, 0, v); -} - -static struct block * -gen_cmp_lt(offrel, offset, size, v) - enum e_offrel offrel; - u_int offset, size; - bpf_int32 v; -{ - return gen_ncmp(offrel, offset, size, 0xffffffff, BPF_JGE, 1, v); -} - -static struct block * -gen_cmp_le(offrel, offset, size, v) - enum e_offrel offrel; - u_int offset, size; - bpf_int32 v; -{ - return gen_ncmp(offrel, offset, size, 0xffffffff, BPF_JGT, 1, v); -} - -static struct block * -gen_mcmp(offrel, offset, size, v, mask) - enum e_offrel offrel; - u_int offset, size; - bpf_int32 v; - bpf_u_int32 mask; -{ - return gen_ncmp(offrel, offset, size, mask, BPF_JEQ, 0, v); -} - -static struct block * -gen_bcmp(offrel, offset, size, v) - enum e_offrel offrel; - register u_int offset, size; - register const u_char *v; -{ - register struct block *b, *tmp; - - b = NULL; - while (size >= 4) { - register const u_char *p = &v[size - 4]; - bpf_int32 w = ((bpf_int32)p[0] << 24) | - ((bpf_int32)p[1] << 16) | ((bpf_int32)p[2] << 8) | p[3]; - - tmp = gen_cmp(offrel, offset + size - 4, BPF_W, w); - if (b != NULL) - gen_and(b, tmp); - b = tmp; - size -= 4; - } - while (size >= 2) { - register const u_char *p = &v[size - 2]; - bpf_int32 w = ((bpf_int32)p[0] << 8) | p[1]; - - tmp = gen_cmp(offrel, offset + size - 2, BPF_H, w); - if (b != NULL) - gen_and(b, tmp); - b = tmp; - size -= 2; - } - if (size > 0) { - tmp = gen_cmp(offrel, offset, BPF_B, (bpf_int32)v[0]); - if (b != NULL) - gen_and(b, tmp); - b = tmp; - } - return b; -} - -/* - * AND the field of size "size" at offset "offset" relative to the header - * specified by "offrel" with "mask", and compare it with the value "v" - * with the test specified by "jtype"; if "reverse" is true, the test - * should test the opposite of "jtype". - */ -static struct block * -gen_ncmp(offrel, offset, size, mask, jtype, reverse, v) - enum e_offrel offrel; - bpf_int32 v; - bpf_u_int32 offset, size, mask, jtype; - int reverse; -{ - struct slist *s, *s2; - struct block *b; - - s = gen_load_a(offrel, offset, size); - - if (mask != 0xffffffff) { - s2 = new_stmt(BPF_ALU|BPF_AND|BPF_K); - s2->s.k = mask; - sappend(s, s2); - } - - b = new_block(JMP(jtype)); - b->stmts = s; - b->s.k = v; - if (reverse && (jtype == BPF_JGT || jtype == BPF_JGE)) - gen_not(b); - return b; -} - -/* - * Various code constructs need to know the layout of the data link - * layer. These variables give the necessary offsets from the beginning - * of the packet data. - * - * If the link layer has variable_length headers, the offsets are offsets - * from the end of the link-link-layer header, and "reg_ll_size" is - * the register number for a register containing the length of the - * link-layer header. Otherwise, "reg_ll_size" is -1. - */ -static int reg_ll_size; - -/* - * This is the offset of the beginning of the link-layer header from - * the beginning of the raw packet data. - * - * It's usually 0, except for 802.11 with a fixed-length radio header. - * (For 802.11 with a variable-length radio header, we have to generate - * code to compute that offset; off_ll is 0 in that case.) - */ -static u_int off_ll; - -/* - * This is the offset of the beginning of the MAC-layer header. - * It's usually 0, except for ATM LANE, where it's the offset, relative - * to the beginning of the raw packet data, of the Ethernet header. - */ -static u_int off_mac; - -/* - * "off_linktype" is the offset to information in the link-layer header - * giving the packet type. This offset is relative to the beginning - * of the link-layer header (i.e., it doesn't include off_ll). - * - * For Ethernet, it's the offset of the Ethernet type field. - * - * For link-layer types that always use 802.2 headers, it's the - * offset of the LLC header. - * - * For PPP, it's the offset of the PPP type field. - * - * For Cisco HDLC, it's the offset of the CHDLC type field. - * - * For BSD loopback, it's the offset of the AF_ value. - * - * For Linux cooked sockets, it's the offset of the type field. - * - * It's set to -1 for no encapsulation, in which case, IP is assumed. - */ -static u_int off_linktype; - -/* - * TRUE if the link layer includes an ATM pseudo-header. - */ -static int is_atm = 0; - -/* - * TRUE if "lane" appeared in the filter; it causes us to generate - * code that assumes LANE rather than LLC-encapsulated traffic in SunATM. - */ -static int is_lane = 0; - -/* - * These are offsets for the ATM pseudo-header. - */ -static u_int off_vpi; -static u_int off_vci; -static u_int off_proto; - -/* - * These are offsets for the MTP2 fields. - */ -static u_int off_li; - -/* - * These are offsets for the MTP3 fields. - */ -static u_int off_sio; -static u_int off_opc; -static u_int off_dpc; -static u_int off_sls; - -/* - * This is the offset of the first byte after the ATM pseudo_header, - * or -1 if there is no ATM pseudo-header. - */ -static u_int off_payload; - -/* - * These are offsets to the beginning of the network-layer header. - * They are relative to the beginning of the link-layer header (i.e., - * they don't include off_ll). - * - * If the link layer never uses 802.2 LLC: - * - * "off_nl" and "off_nl_nosnap" are the same. - * - * If the link layer always uses 802.2 LLC: - * - * "off_nl" is the offset if there's a SNAP header following - * the 802.2 header; - * - * "off_nl_nosnap" is the offset if there's no SNAP header. - * - * If the link layer is Ethernet: - * - * "off_nl" is the offset if the packet is an Ethernet II packet - * (we assume no 802.3+802.2+SNAP); - * - * "off_nl_nosnap" is the offset if the packet is an 802.3 packet - * with an 802.2 header following it. - */ -static u_int off_nl; -static u_int off_nl_nosnap; - -static int linktype; - -static void -init_linktype(p) - pcap_t *p; -{ - linktype = pcap_datalink(p); -#ifdef PCAP_FDDIPAD - pcap_fddipad = p->fddipad; -#endif - - /* - * Assume it's not raw ATM with a pseudo-header, for now. - */ - off_mac = 0; - is_atm = 0; - is_lane = 0; - off_vpi = -1; - off_vci = -1; - off_proto = -1; - off_payload = -1; - - /* - * And assume we're not doing SS7. - */ - off_li = -1; - off_sio = -1; - off_opc = -1; - off_dpc = -1; - off_sls = -1; - - /* - * Also assume it's not 802.11 with a fixed-length radio header. - */ - off_ll = 0; - - orig_linktype = -1; - orig_nl = -1; - label_stack_depth = 0; - - reg_ll_size = -1; - - switch (linktype) { - - case DLT_ARCNET: - off_linktype = 2; - off_nl = 6; /* XXX in reality, variable! */ - off_nl_nosnap = 6; /* no 802.2 LLC */ - return; - - case DLT_ARCNET_LINUX: - off_linktype = 4; - off_nl = 8; /* XXX in reality, variable! */ - off_nl_nosnap = 8; /* no 802.2 LLC */ - return; - - case DLT_EN10MB: - off_linktype = 12; - off_nl = 14; /* Ethernet II */ - off_nl_nosnap = 17; /* 802.3+802.2 */ - return; - - case DLT_SLIP: - /* - * SLIP doesn't have a link level type. The 16 byte - * header is hacked into our SLIP driver. - */ - off_linktype = -1; - off_nl = 16; - off_nl_nosnap = 16; /* no 802.2 LLC */ - return; - - case DLT_SLIP_BSDOS: - /* XXX this may be the same as the DLT_PPP_BSDOS case */ - off_linktype = -1; - /* XXX end */ - off_nl = 24; - off_nl_nosnap = 24; /* no 802.2 LLC */ - return; - - case DLT_NULL: - case DLT_LOOP: - off_linktype = 0; - off_nl = 4; - off_nl_nosnap = 4; /* no 802.2 LLC */ - return; - - case DLT_ENC: - off_linktype = 0; - off_nl = 12; - off_nl_nosnap = 12; /* no 802.2 LLC */ - return; - - case DLT_PPP: - case DLT_PPP_PPPD: - case DLT_C_HDLC: /* BSD/OS Cisco HDLC */ - case DLT_PPP_SERIAL: /* NetBSD sync/async serial PPP */ - off_linktype = 2; - off_nl = 4; - off_nl_nosnap = 4; /* no 802.2 LLC */ - return; - - case DLT_PPP_ETHER: - /* - * This does no include the Ethernet header, and - * only covers session state. - */ - off_linktype = 6; - off_nl = 8; - off_nl_nosnap = 8; /* no 802.2 LLC */ - return; - - case DLT_PPP_BSDOS: - off_linktype = 5; - off_nl = 24; - off_nl_nosnap = 24; /* no 802.2 LLC */ - return; - - case DLT_FDDI: - /* - * FDDI doesn't really have a link-level type field. - * We set "off_linktype" to the offset of the LLC header. - * - * To check for Ethernet types, we assume that SSAP = SNAP - * is being used and pick out the encapsulated Ethernet type. - * XXX - should we generate code to check for SNAP? - */ - off_linktype = 13; -#ifdef PCAP_FDDIPAD - off_linktype += pcap_fddipad; -#endif - off_nl = 21; /* FDDI+802.2+SNAP */ - off_nl_nosnap = 16; /* FDDI+802.2 */ -#ifdef PCAP_FDDIPAD - off_nl += pcap_fddipad; - off_nl_nosnap += pcap_fddipad; -#endif - return; - - case DLT_IEEE802: - /* - * Token Ring doesn't really have a link-level type field. - * We set "off_linktype" to the offset of the LLC header. - * - * To check for Ethernet types, we assume that SSAP = SNAP - * is being used and pick out the encapsulated Ethernet type. - * XXX - should we generate code to check for SNAP? - * - * XXX - the header is actually variable-length. - * Some various Linux patched versions gave 38 - * as "off_linktype" and 40 as "off_nl"; however, - * if a token ring packet has *no* routing - * information, i.e. is not source-routed, the correct - * values are 20 and 22, as they are in the vanilla code. - * - * A packet is source-routed iff the uppermost bit - * of the first byte of the source address, at an - * offset of 8, has the uppermost bit set. If the - * packet is source-routed, the total number of bytes - * of routing information is 2 plus bits 0x1F00 of - * the 16-bit value at an offset of 14 (shifted right - * 8 - figure out which byte that is). - */ - off_linktype = 14; - off_nl = 22; /* Token Ring+802.2+SNAP */ - off_nl_nosnap = 17; /* Token Ring+802.2 */ - return; - - case DLT_IEEE802_11: - /* - * 802.11 doesn't really have a link-level type field. - * We set "off_linktype" to the offset of the LLC header. - * - * To check for Ethernet types, we assume that SSAP = SNAP - * is being used and pick out the encapsulated Ethernet type. - * XXX - should we generate code to check for SNAP? - * - * XXX - the header is actually variable-length. We - * assume a 24-byte link-layer header, as appears in - * data frames in networks with no bridges. If the - * fromds and tods 802.11 header bits are both set, - * it's actually supposed to be 30 bytes. - */ - off_linktype = 24; - off_nl = 32; /* 802.11+802.2+SNAP */ - off_nl_nosnap = 27; /* 802.11+802.2 */ - return; - - case DLT_PRISM_HEADER: - /* - * Same as 802.11, but with an additional header before - * the 802.11 header, containing a bunch of additional - * information including radio-level information. - * - * The header is 144 bytes long. - * - * XXX - same variable-length header problem; at least - * the Prism header is fixed-length. - */ - off_ll = 144; - off_linktype = 24; - off_nl = 32; /* Prism+802.11+802.2+SNAP */ - off_nl_nosnap = 27; /* Prism+802.11+802.2 */ - return; - - case DLT_IEEE802_11_RADIO_AVS: - /* - * Same as 802.11, but with an additional header before - * the 802.11 header, containing a bunch of additional - * information including radio-level information. - * - * The header is 64 bytes long, at least in its - * current incarnation. - * - * XXX - same variable-length header problem, only - * more so; this header is also variable-length, - * with the length being the 32-bit big-endian - * number at an offset of 4 from the beginning - * of the radio header. We should handle that the - * same way we handle the length at the beginning - * of the radiotap header. - * - * XXX - in Linux, do any drivers that supply an AVS - * header supply a link-layer type other than - * ARPHRD_IEEE80211_PRISM? If so, we should map that - * to DLT_IEEE802_11_RADIO_AVS; if not, or if there are - * any drivers that supply an AVS header but supply - * an ARPHRD value of ARPHRD_IEEE80211_PRISM, we'll - * have to check the header in the generated code to - * determine whether it's Prism or AVS. - */ - off_ll = 64; - off_linktype = 24; - off_nl = 32; /* Radio+802.11+802.2+SNAP */ - off_nl_nosnap = 27; /* Radio+802.11+802.2 */ - return; - - - /* - * At the moment we treat PPI as normal Radiotap encoded - * packets. The difference is in the function that generates - * the code at the beginning to compute the header length. - * Since this code generator of PPI supports bare 802.11 - * encapsulation only (i.e. the encapsulated DLT should be - * DLT_IEEE802_11) we generate code to check for this too. - */ - case DLT_PPI: - case DLT_IEEE802_11_RADIO: - /* - * Same as 802.11, but with an additional header before - * the 802.11 header, containing a bunch of additional - * information including radio-level information. - * - * The radiotap header is variable length, and we - * generate code to compute its length and store it - * in a register. These offsets are relative to the - * beginning of the 802.11 header. - */ - off_linktype = 24; - off_nl = 32; /* 802.11+802.2+SNAP */ - off_nl_nosnap = 27; /* 802.11+802.2 */ - return; - - case DLT_ATM_RFC1483: - case DLT_ATM_CLIP: /* Linux ATM defines this */ - /* - * assume routed, non-ISO PDUs - * (i.e., LLC = 0xAA-AA-03, OUT = 0x00-00-00) - * - * XXX - what about ISO PDUs, e.g. CLNP, ISIS, ESIS, - * or PPP with the PPP NLPID (e.g., PPPoA)? The - * latter would presumably be treated the way PPPoE - * should be, so you can do "pppoe and udp port 2049" - * or "pppoa and tcp port 80" and have it check for - * PPPo{A,E} and a PPP protocol of IP and.... - */ - off_linktype = 0; - off_nl = 8; /* 802.2+SNAP */ - off_nl_nosnap = 3; /* 802.2 */ - return; - - case DLT_SUNATM: - /* - * Full Frontal ATM; you get AALn PDUs with an ATM - * pseudo-header. - */ - is_atm = 1; - off_vpi = SUNATM_VPI_POS; - off_vci = SUNATM_VCI_POS; - off_proto = PROTO_POS; - off_mac = -1; /* LLC-encapsulated, so no MAC-layer header */ - off_payload = SUNATM_PKT_BEGIN_POS; - off_linktype = off_payload; - off_nl = off_payload+8; /* 802.2+SNAP */ - off_nl_nosnap = off_payload+3; /* 802.2 */ - return; - - case DLT_RAW: - off_linktype = -1; - off_nl = 0; - off_nl_nosnap = 0; /* no 802.2 LLC */ - return; - - case DLT_LINUX_SLL: /* fake header for Linux cooked socket */ - off_linktype = 14; - off_nl = 16; - off_nl_nosnap = 16; /* no 802.2 LLC */ - return; - - case DLT_LTALK: - /* - * LocalTalk does have a 1-byte type field in the LLAP header, - * but really it just indicates whether there is a "short" or - * "long" DDP packet following. - */ - off_linktype = -1; - off_nl = 0; - off_nl_nosnap = 0; /* no 802.2 LLC */ - return; - - case DLT_IP_OVER_FC: - /* - * RFC 2625 IP-over-Fibre-Channel doesn't really have a - * link-level type field. We set "off_linktype" to the - * offset of the LLC header. - * - * To check for Ethernet types, we assume that SSAP = SNAP - * is being used and pick out the encapsulated Ethernet type. - * XXX - should we generate code to check for SNAP? RFC - * 2625 says SNAP should be used. - */ - off_linktype = 16; - off_nl = 24; /* IPFC+802.2+SNAP */ - off_nl_nosnap = 19; /* IPFC+802.2 */ - return; - - case DLT_FRELAY: - /* - * XXX - we should set this to handle SNAP-encapsulated - * frames (NLPID of 0x80). - */ - off_linktype = -1; - off_nl = 0; - off_nl_nosnap = 0; /* no 802.2 LLC */ - return; - - /* - * the only BPF-interesting FRF.16 frames are non-control frames; - * Frame Relay has a variable length link-layer - * so lets start with offset 4 for now and increments later on (FIXME); - */ - case DLT_MFR: - off_linktype = -1; - off_nl = 4; - off_nl_nosnap = 0; /* XXX - for now -> no 802.2 LLC */ - return; - - case DLT_APPLE_IP_OVER_IEEE1394: - off_linktype = 16; - off_nl = 18; - off_nl_nosnap = 18; /* no 802.2 LLC */ - return; - - case DLT_LINUX_IRDA: - /* - * Currently, only raw "link[N:M]" filtering is supported. - */ - off_linktype = -1; - off_nl = -1; - off_nl_nosnap = -1; - return; - - case DLT_DOCSIS: - /* - * Currently, only raw "link[N:M]" filtering is supported. - */ - off_linktype = -1; - off_nl = -1; - off_nl_nosnap = -1; - return; - - case DLT_SYMANTEC_FIREWALL: - off_linktype = 6; - off_nl = 44; /* Ethernet II */ - off_nl_nosnap = 44; /* XXX - what does it do with 802.3 packets? */ - return; - -#ifdef HAVE_NET_PFVAR_H - case DLT_PFLOG: - off_linktype = 0; - off_nl = PFLOG_HDRLEN; - off_nl_nosnap = PFLOG_HDRLEN; /* no 802.2 LLC */ - return; -#endif - - case DLT_JUNIPER_MFR: - case DLT_JUNIPER_MLFR: - case DLT_JUNIPER_MLPPP: - case DLT_JUNIPER_PPP: - case DLT_JUNIPER_CHDLC: - case DLT_JUNIPER_FRELAY: - off_linktype = 4; - off_nl = 4; - off_nl_nosnap = -1; /* no 802.2 LLC */ - return; - - case DLT_JUNIPER_ATM1: - off_linktype = 4; /* in reality variable between 4-8 */ - off_nl = 4; - off_nl_nosnap = 14; - return; - - case DLT_JUNIPER_ATM2: - off_linktype = 8; /* in reality variable between 8-12 */ - off_nl = 8; - off_nl_nosnap = 18; - return; - - /* frames captured on a Juniper PPPoE service PIC - * contain raw ethernet frames */ - case DLT_JUNIPER_PPPOE: - case DLT_JUNIPER_ETHER: - off_linktype = 16; - off_nl = 18; /* Ethernet II */ - off_nl_nosnap = 21; /* 802.3+802.2 */ - return; - - case DLT_JUNIPER_PPPOE_ATM: - off_linktype = 4; - off_nl = 6; - off_nl_nosnap = -1; /* no 802.2 LLC */ - return; - - case DLT_JUNIPER_GGSN: - off_linktype = 6; - off_nl = 12; - off_nl_nosnap = -1; /* no 802.2 LLC */ - return; - - case DLT_JUNIPER_ES: - off_linktype = 6; - off_nl = -1; /* not really a network layer but raw IP adresses */ - off_nl_nosnap = -1; /* no 802.2 LLC */ - return; - - case DLT_JUNIPER_MONITOR: - off_linktype = 12; - off_nl = 12; /* raw IP/IP6 header */ - off_nl_nosnap = -1; /* no 802.2 LLC */ - return; - - case DLT_JUNIPER_SERVICES: - off_linktype = 12; - off_nl = -1; /* L3 proto location dep. on cookie type */ - off_nl_nosnap = -1; /* no 802.2 LLC */ - return; - - case DLT_JUNIPER_VP: - off_linktype = 18; - off_nl = -1; - off_nl_nosnap = -1; - return; - - case DLT_MTP2: - off_li = 2; - off_sio = 3; - off_opc = 4; - off_dpc = 4; - off_sls = 7; - off_linktype = -1; - off_nl = -1; - off_nl_nosnap = -1; - return; - - case DLT_MTP2_WITH_PHDR: - off_li = 6; - off_sio = 7; - off_opc = 8; - off_dpc = 8; - off_sls = 11; - off_linktype = -1; - off_nl = -1; - off_nl_nosnap = -1; - return; - -#ifdef DLT_PFSYNC - case DLT_PFSYNC: - off_linktype = -1; - off_nl = 4; - off_nl_nosnap = 4; - return; -#endif - - case DLT_LINUX_LAPD: - /* - * Currently, only raw "link[N:M]" filtering is supported. - */ - off_linktype = -1; - off_nl = -1; - off_nl_nosnap = -1; - return; - - case DLT_USB: - /* - * Currently, only raw "link[N:M]" filtering is supported. - */ - off_linktype = -1; - off_nl = -1; - off_nl_nosnap = -1; - return; - - case DLT_BLUETOOTH_HCI_H4: - /* - * Currently, only raw "link[N:M]" filtering is supported. - */ - off_linktype = -1; - off_nl = -1; - off_nl_nosnap = -1; - return; - } - bpf_error("unknown data link type %d", linktype); - /* NOTREACHED */ -} - -/* - * Load a value relative to the beginning of the link-layer header. - * The link-layer header doesn't necessarily begin at the beginning - * of the packet data; there might be a variable-length prefix containing - * radio information. - */ -static struct slist * -gen_load_llrel(offset, size) - u_int offset, size; -{ - struct slist *s, *s2; - - s = gen_llprefixlen(); - - /* - * If "s" is non-null, it has code to arrange that the X register - * contains the length of the prefix preceding the link-layer - * header. - * - * Otherwise, the length of the prefix preceding the link-layer - * header is "off_ll". - */ - if (s != NULL) { - /* - * There's a variable-length prefix preceding the - * link-layer header. "s" points to a list of statements - * that put the length of that prefix into the X register. - * do an indirect load, to use the X register as an offset. - */ - s2 = new_stmt(BPF_LD|BPF_IND|size); - s2->s.k = offset; - sappend(s, s2); - } else { - /* - * There is no variable-length header preceding the - * link-layer header; add in off_ll, which, if there's - * a fixed-length header preceding the link-layer header, - * is the length of that header. - */ - s = new_stmt(BPF_LD|BPF_ABS|size); - s->s.k = offset + off_ll; - } - return s; -} - - -/* - * Load a value relative to the beginning of the specified header. - */ -static struct slist * -gen_load_a(offrel, offset, size) - enum e_offrel offrel; - u_int offset, size; -{ - struct slist *s, *s2; - - switch (offrel) { - - case OR_PACKET: - s = new_stmt(BPF_LD|BPF_ABS|size); - s->s.k = offset; - break; - - case OR_LINK: - s = gen_load_llrel(offset, size); - break; - - case OR_NET: - s = gen_load_llrel(off_nl + offset, size); - break; - - case OR_NET_NOSNAP: - s = gen_load_llrel(off_nl_nosnap + offset, size); - break; - - case OR_TRAN_IPV4: - /* - * Load the X register with the length of the IPv4 header - * (plus the offset of the link-layer header, if it's - * preceded by a variable-length header such as a radio - * header), in bytes. - */ - s = gen_loadx_iphdrlen(); - - /* - * Load the item at {offset of the link-layer header} + - * {offset, relative to the start of the link-layer - * header, of the IPv4 header} + {length of the IPv4 header} + - * {specified offset}. - * - * (If the link-layer is variable-length, it's included - * in the value in the X register, and off_ll is 0.) - */ - s2 = new_stmt(BPF_LD|BPF_IND|size); - s2->s.k = off_ll + off_nl + offset; - sappend(s, s2); - break; - - case OR_TRAN_IPV6: - s = gen_load_llrel(off_nl + 40 + offset, size); - break; - - default: - abort(); - return NULL; - } - return s; -} - -/* - * Generate code to load into the X register the sum of the length of - * the IPv4 header and any variable-length header preceding the link-layer - * header. - */ -static struct slist * -gen_loadx_iphdrlen() -{ - struct slist *s, *s2; - - s = gen_llprefixlen(); - if (s != NULL) { - /* - * There's a variable-length prefix preceding the - * link-layer header. "s" points to a list of statements - * that put the length of that prefix into the X register. - * The 4*([k]&0xf) addressing mode can't be used, as we - * don't have a constant offset, so we have to load the - * value in question into the A register and add to it - * the value from the X register. - */ - s2 = new_stmt(BPF_LD|BPF_IND|BPF_B); - s2->s.k = off_nl; - sappend(s, s2); - s2 = new_stmt(BPF_ALU|BPF_AND|BPF_K); - s2->s.k = 0xf; - sappend(s, s2); - s2 = new_stmt(BPF_ALU|BPF_LSH|BPF_K); - s2->s.k = 2; - sappend(s, s2); - - /* - * The A register now contains the length of the - * IP header. We need to add to it the length - * of the prefix preceding the link-layer - * header, which is still in the X register, and - * move the result into the X register. - */ - sappend(s, new_stmt(BPF_ALU|BPF_ADD|BPF_X)); - sappend(s, new_stmt(BPF_MISC|BPF_TAX)); - } else { - /* - * There is no variable-length header preceding the - * link-layer header; add in off_ll, which, if there's - * a fixed-length header preceding the link-layer header, - * is the length of that header. - */ - s = new_stmt(BPF_LDX|BPF_MSH|BPF_B); - s->s.k = off_ll + off_nl; - } - return s; -} - -static struct block * -gen_uncond(rsense) - int rsense; -{ - struct block *b; - struct slist *s; - - s = new_stmt(BPF_LD|BPF_IMM); - s->s.k = !rsense; - b = new_block(JMP(BPF_JEQ)); - b->stmts = s; - - return b; -} - -static inline struct block * -gen_true() -{ - return gen_uncond(1); -} - -static inline struct block * -gen_false() -{ - return gen_uncond(0); -} - -/* - * Byte-swap a 32-bit number. - * ("htonl()" or "ntohl()" won't work - we want to byte-swap even on - * big-endian platforms.) - */ -#define SWAPLONG(y) \ -((((y)&0xff)<<24) | (((y)&0xff00)<<8) | (((y)&0xff0000)>>8) | (((y)>>24)&0xff)) - -/* - * Generate code to match a particular packet type. - * - * "proto" is an Ethernet type value, if > ETHERMTU, or an LLC SAP - * value, if <= ETHERMTU. We use that to determine whether to - * match the type/length field or to check the type/length field for - * a value <= ETHERMTU to see whether it's a type field and then do - * the appropriate test. - */ -static struct block * -gen_ether_linktype(proto) - register int proto; -{ - struct block *b0, *b1; - - switch (proto) { - - case LLCSAP_ISONS: - case LLCSAP_IP: - case LLCSAP_NETBEUI: - /* - * OSI protocols and NetBEUI always use 802.2 encapsulation, - * so we check the DSAP and SSAP. - * - * LLCSAP_IP checks for IP-over-802.2, rather - * than IP-over-Ethernet or IP-over-SNAP. - * - * XXX - should we check both the DSAP and the - * SSAP, like this, or should we check just the - * DSAP, as we do for other types <= ETHERMTU - * (i.e., other SAP values)? - */ - b0 = gen_cmp_gt(OR_LINK, off_linktype, BPF_H, ETHERMTU); - gen_not(b0); - b1 = gen_cmp(OR_LINK, off_linktype + 2, BPF_H, (bpf_int32) - ((proto << 8) | proto)); - gen_and(b0, b1); - return b1; - - case LLCSAP_IPX: - /* - * Check for; - * - * Ethernet_II frames, which are Ethernet - * frames with a frame type of ETHERTYPE_IPX; - * - * Ethernet_802.3 frames, which are 802.3 - * frames (i.e., the type/length field is - * a length field, <= ETHERMTU, rather than - * a type field) with the first two bytes - * after the Ethernet/802.3 header being - * 0xFFFF; - * - * Ethernet_802.2 frames, which are 802.3 - * frames with an 802.2 LLC header and - * with the IPX LSAP as the DSAP in the LLC - * header; - * - * Ethernet_SNAP frames, which are 802.3 - * frames with an LLC header and a SNAP - * header and with an OUI of 0x000000 - * (encapsulated Ethernet) and a protocol - * ID of ETHERTYPE_IPX in the SNAP header. - * - * XXX - should we generate the same code both - * for tests for LLCSAP_IPX and for ETHERTYPE_IPX? - */ - - /* - * This generates code to check both for the - * IPX LSAP (Ethernet_802.2) and for Ethernet_802.3. - */ - b0 = gen_cmp(OR_LINK, off_linktype + 2, BPF_B, - (bpf_int32)LLCSAP_IPX); - b1 = gen_cmp(OR_LINK, off_linktype + 2, BPF_H, - (bpf_int32)0xFFFF); - gen_or(b0, b1); - - /* - * Now we add code to check for SNAP frames with - * ETHERTYPE_IPX, i.e. Ethernet_SNAP. - */ - b0 = gen_snap(0x000000, ETHERTYPE_IPX, 14); - gen_or(b0, b1); - - /* - * Now we generate code to check for 802.3 - * frames in general. - */ - b0 = gen_cmp_gt(OR_LINK, off_linktype, BPF_H, ETHERMTU); - gen_not(b0); - - /* - * Now add the check for 802.3 frames before the - * check for Ethernet_802.2 and Ethernet_802.3, - * as those checks should only be done on 802.3 - * frames, not on Ethernet frames. - */ - gen_and(b0, b1); - - /* - * Now add the check for Ethernet_II frames, and - * do that before checking for the other frame - * types. - */ - b0 = gen_cmp(OR_LINK, off_linktype, BPF_H, - (bpf_int32)ETHERTYPE_IPX); - gen_or(b0, b1); - return b1; - - case ETHERTYPE_ATALK: - case ETHERTYPE_AARP: - /* - * EtherTalk (AppleTalk protocols on Ethernet link - * layer) may use 802.2 encapsulation. - */ - - /* - * Check for 802.2 encapsulation (EtherTalk phase 2?); - * we check for an Ethernet type field less than - * 1500, which means it's an 802.3 length field. - */ - b0 = gen_cmp_gt(OR_LINK, off_linktype, BPF_H, ETHERMTU); - gen_not(b0); - - /* - * 802.2-encapsulated ETHERTYPE_ATALK packets are - * SNAP packets with an organization code of - * 0x080007 (Apple, for Appletalk) and a protocol - * type of ETHERTYPE_ATALK (Appletalk). - * - * 802.2-encapsulated ETHERTYPE_AARP packets are - * SNAP packets with an organization code of - * 0x000000 (encapsulated Ethernet) and a protocol - * type of ETHERTYPE_AARP (Appletalk ARP). - */ - if (proto == ETHERTYPE_ATALK) - b1 = gen_snap(0x080007, ETHERTYPE_ATALK, 14); - else /* proto == ETHERTYPE_AARP */ - b1 = gen_snap(0x000000, ETHERTYPE_AARP, 14); - gen_and(b0, b1); - - /* - * Check for Ethernet encapsulation (Ethertalk - * phase 1?); we just check for the Ethernet - * protocol type. - */ - b0 = gen_cmp(OR_LINK, off_linktype, BPF_H, (bpf_int32)proto); - - gen_or(b0, b1); - return b1; - - default: - if (proto <= ETHERMTU) { - /* - * This is an LLC SAP value, so the frames - * that match would be 802.2 frames. - * Check that the frame is an 802.2 frame - * (i.e., that the length/type field is - * a length field, <= ETHERMTU) and - * then check the DSAP. - */ - b0 = gen_cmp_gt(OR_LINK, off_linktype, BPF_H, ETHERMTU); - gen_not(b0); - b1 = gen_cmp(OR_LINK, off_linktype + 2, BPF_B, - (bpf_int32)proto); - gen_and(b0, b1); - return b1; - } else { - /* - * This is an Ethernet type, so compare - * the length/type field with it (if - * the frame is an 802.2 frame, the length - * field will be <= ETHERMTU, and, as - * "proto" is > ETHERMTU, this test - * will fail and the frame won't match, - * which is what we want). - */ - return gen_cmp(OR_LINK, off_linktype, BPF_H, - (bpf_int32)proto); - } - } -} - -/* - * Generate code to match a particular packet type. - * - * "proto" is an Ethernet type value, if > ETHERMTU, or an LLC SAP - * value, if <= ETHERMTU. We use that to determine whether to - * match the type field or to check the type field for the special - * LINUX_SLL_P_802_2 value and then do the appropriate test. - */ -static struct block * -gen_linux_sll_linktype(proto) - register int proto; -{ - struct block *b0, *b1; - - switch (proto) { - - case LLCSAP_ISONS: - case LLCSAP_IP: - case LLCSAP_NETBEUI: - /* - * OSI protocols and NetBEUI always use 802.2 encapsulation, - * so we check the DSAP and SSAP. - * - * LLCSAP_IP checks for IP-over-802.2, rather - * than IP-over-Ethernet or IP-over-SNAP. - * - * XXX - should we check both the DSAP and the - * SSAP, like this, or should we check just the - * DSAP, as we do for other types <= ETHERMTU - * (i.e., other SAP values)? - */ - b0 = gen_cmp(OR_LINK, off_linktype, BPF_H, LINUX_SLL_P_802_2); - b1 = gen_cmp(OR_LINK, off_linktype + 2, BPF_H, (bpf_int32) - ((proto << 8) | proto)); - gen_and(b0, b1); - return b1; - - case LLCSAP_IPX: - /* - * Ethernet_II frames, which are Ethernet - * frames with a frame type of ETHERTYPE_IPX; - * - * Ethernet_802.3 frames, which have a frame - * type of LINUX_SLL_P_802_3; - * - * Ethernet_802.2 frames, which are 802.3 - * frames with an 802.2 LLC header (i.e, have - * a frame type of LINUX_SLL_P_802_2) and - * with the IPX LSAP as the DSAP in the LLC - * header; - * - * Ethernet_SNAP frames, which are 802.3 - * frames with an LLC header and a SNAP - * header and with an OUI of 0x000000 - * (encapsulated Ethernet) and a protocol - * ID of ETHERTYPE_IPX in the SNAP header. - * - * First, do the checks on LINUX_SLL_P_802_2 - * frames; generate the check for either - * Ethernet_802.2 or Ethernet_SNAP frames, and - * then put a check for LINUX_SLL_P_802_2 frames - * before it. - */ - b0 = gen_cmp(OR_LINK, off_linktype + 2, BPF_B, - (bpf_int32)LLCSAP_IPX); - b1 = gen_snap(0x000000, ETHERTYPE_IPX, - off_linktype + 2); - gen_or(b0, b1); - b0 = gen_cmp(OR_LINK, off_linktype, BPF_H, LINUX_SLL_P_802_2); - gen_and(b0, b1); - - /* - * Now check for 802.3 frames and OR that with - * the previous test. - */ - b0 = gen_cmp(OR_LINK, off_linktype, BPF_H, LINUX_SLL_P_802_3); - gen_or(b0, b1); - - /* - * Now add the check for Ethernet_II frames, and - * do that before checking for the other frame - * types. - */ - b0 = gen_cmp(OR_LINK, off_linktype, BPF_H, - (bpf_int32)ETHERTYPE_IPX); - gen_or(b0, b1); - return b1; - - case ETHERTYPE_ATALK: - case ETHERTYPE_AARP: - /* - * EtherTalk (AppleTalk protocols on Ethernet link - * layer) may use 802.2 encapsulation. - */ - - /* - * Check for 802.2 encapsulation (EtherTalk phase 2?); - * we check for the 802.2 protocol type in the - * "Ethernet type" field. - */ - b0 = gen_cmp(OR_LINK, off_linktype, BPF_H, LINUX_SLL_P_802_2); - - /* - * 802.2-encapsulated ETHERTYPE_ATALK packets are - * SNAP packets with an organization code of - * 0x080007 (Apple, for Appletalk) and a protocol - * type of ETHERTYPE_ATALK (Appletalk). - * - * 802.2-encapsulated ETHERTYPE_AARP packets are - * SNAP packets with an organization code of - * 0x000000 (encapsulated Ethernet) and a protocol - * type of ETHERTYPE_AARP (Appletalk ARP). - */ - if (proto == ETHERTYPE_ATALK) - b1 = gen_snap(0x080007, ETHERTYPE_ATALK, - off_linktype + 2); - else /* proto == ETHERTYPE_AARP */ - b1 = gen_snap(0x000000, ETHERTYPE_AARP, - off_linktype + 2); - gen_and(b0, b1); - - /* - * Check for Ethernet encapsulation (Ethertalk - * phase 1?); we just check for the Ethernet - * protocol type. - */ - b0 = gen_cmp(OR_LINK, off_linktype, BPF_H, (bpf_int32)proto); - - gen_or(b0, b1); - return b1; - - default: - if (proto <= ETHERMTU) { - /* - * This is an LLC SAP value, so the frames - * that match would be 802.2 frames. - * Check for the 802.2 protocol type - * in the "Ethernet type" field, and - * then check the DSAP. - */ - b0 = gen_cmp(OR_LINK, off_linktype, BPF_H, - LINUX_SLL_P_802_2); - b1 = gen_cmp(OR_LINK, off_linktype + 2, BPF_B, - (bpf_int32)proto); - gen_and(b0, b1); - return b1; - } else { - /* - * This is an Ethernet type, so compare - * the length/type field with it (if - * the frame is an 802.2 frame, the length - * field will be <= ETHERMTU, and, as - * "proto" is > ETHERMTU, this test - * will fail and the frame won't match, - * which is what we want). - */ - return gen_cmp(OR_LINK, off_linktype, BPF_H, - (bpf_int32)proto); - } - } -} - -static void -insert_radiotap_load_llprefixlen(b) - struct block *b; -{ - struct slist *s1, *s2; - - /* - * Prepend to the statements in this block code to load the - * length of the radiotap header into the register assigned - * to hold that length, if one has been assigned. - */ - if (reg_ll_size != -1) { - /* - * The 2 bytes at offsets of 2 and 3 from the beginning - * of the radiotap header are the length of the radiotap - * header; unfortunately, it's little-endian, so we have - * to load it a byte at a time and construct the value. - */ - - /* - * Load the high-order byte, at an offset of 3, shift it - * left a byte, and put the result in the X register. - */ - s1 = new_stmt(BPF_LD|BPF_B|BPF_ABS); - s1->s.k = 3; - s2 = new_stmt(BPF_ALU|BPF_LSH|BPF_K); - sappend(s1, s2); - s2->s.k = 8; - s2 = new_stmt(BPF_MISC|BPF_TAX); - sappend(s1, s2); - - /* - * Load the next byte, at an offset of 2, and OR the - * value from the X register into it. - */ - s2 = new_stmt(BPF_LD|BPF_B|BPF_ABS); - sappend(s1, s2); - s2->s.k = 2; - s2 = new_stmt(BPF_ALU|BPF_OR|BPF_X); - sappend(s1, s2); - - /* - * Now allocate a register to hold that value and store - * it. - */ - s2 = new_stmt(BPF_ST); - s2->s.k = reg_ll_size; - sappend(s1, s2); - - /* - * Now move it into the X register. - */ - s2 = new_stmt(BPF_MISC|BPF_TAX); - sappend(s1, s2); - - /* - * Now append all the existing statements in this - * block to these statements. - */ - sappend(s1, b->stmts); - b->stmts = s1; - } -} - -/* - * At the moment we treat PPI as normal Radiotap encoded - * packets. The difference is in the function that generates - * the code at the beginning to compute the header length. - * Since this code generator of PPI supports bare 802.11 - * encapsulation only (i.e. the encapsulated DLT should be - * DLT_IEEE802_11) we generate code to check for this too. - */ -static void -insert_ppi_load_llprefixlen(b) - struct block *b; -{ - struct slist *s1, *s2; - - /* - * Prepend to the statements in this block code to load the - * length of the radiotap header into the register assigned - * to hold that length, if one has been assigned. - */ - if (reg_ll_size != -1) { - /* - * The 2 bytes at offsets of 2 and 3 from the beginning - * of the radiotap header are the length of the radiotap - * header; unfortunately, it's little-endian, so we have - * to load it a byte at a time and construct the value. - */ - - /* - * Load the high-order byte, at an offset of 3, shift it - * left a byte, and put the result in the X register. - */ - s1 = new_stmt(BPF_LD|BPF_B|BPF_ABS); - s1->s.k = 3; - s2 = new_stmt(BPF_ALU|BPF_LSH|BPF_K); - sappend(s1, s2); - s2->s.k = 8; - s2 = new_stmt(BPF_MISC|BPF_TAX); - sappend(s1, s2); - - /* - * Load the next byte, at an offset of 2, and OR the - * value from the X register into it. - */ - s2 = new_stmt(BPF_LD|BPF_B|BPF_ABS); - sappend(s1, s2); - s2->s.k = 2; - s2 = new_stmt(BPF_ALU|BPF_OR|BPF_X); - sappend(s1, s2); - - /* - * Now allocate a register to hold that value and store - * it. - */ - s2 = new_stmt(BPF_ST); - s2->s.k = reg_ll_size; - sappend(s1, s2); - - /* - * Now move it into the X register. - */ - s2 = new_stmt(BPF_MISC|BPF_TAX); - sappend(s1, s2); - - /* - * Now append all the existing statements in this - * block to these statements. - */ - sappend(s1, b->stmts); - b->stmts = s1; - - } -} - -static struct block * -gen_ppi_dlt_check(void) -{ - struct slist *s_load_dlt; - struct block *b; - - if (linktype == DLT_PPI) - { - /* Create the statements that check for the DLT - */ - s_load_dlt = new_stmt(BPF_LD|BPF_W|BPF_ABS); - s_load_dlt->s.k = 4; - - b = new_block(JMP(BPF_JEQ)); - - b->stmts = s_load_dlt; - b->s.k = SWAPLONG(DLT_IEEE802_11); - } - else - { - b = NULL; - } - - return b; -} - -static void -insert_load_llprefixlen(b) - struct block *b; -{ - switch (linktype) { - - /* - * At the moment we treat PPI as normal Radiotap encoded - * packets. The difference is in the function that generates - * the code at the beginning to compute the header length. - * Since this code generator of PPI supports bare 802.11 - * encapsulation only (i.e. the encapsulated DLT should be - * DLT_IEEE802_11) we generate code to check for this too. - */ - case DLT_PPI: - insert_ppi_load_llprefixlen(b); - break; - - case DLT_IEEE802_11_RADIO: - insert_radiotap_load_llprefixlen(b); - break; - } -} - - -static struct slist * -gen_radiotap_llprefixlen(void) -{ - struct slist *s; - - if (reg_ll_size == -1) { - /* - * We haven't yet assigned a register for the length - * of the radiotap header; allocate one. - */ - reg_ll_size = alloc_reg(); - } - - /* - * Load the register containing the radiotap length - * into the X register. - */ - s = new_stmt(BPF_LDX|BPF_MEM); - s->s.k = reg_ll_size; - return s; -} - -/* - * At the moment we treat PPI as normal Radiotap encoded - * packets. The difference is in the function that generates - * the code at the beginning to compute the header length. - * Since this code generator of PPI supports bare 802.11 - * encapsulation only (i.e. the encapsulated DLT should be - * DLT_IEEE802_11) we generate code to check for this too. - */ -static struct slist * -gen_ppi_llprefixlen(void) -{ - struct slist *s; - - if (reg_ll_size == -1) { - /* - * We haven't yet assigned a register for the length - * of the radiotap header; allocate one. - */ - reg_ll_size = alloc_reg(); - } - - /* - * Load the register containing the radiotap length - * into the X register. - */ - s = new_stmt(BPF_LDX|BPF_MEM); - s->s.k = reg_ll_size; - return s; -} - - - -/* - * Generate code to compute the link-layer header length, if necessary, - * putting it into the X register, and to return either a pointer to a - * "struct slist" for the list of statements in that code, or NULL if - * no code is necessary. - */ -static struct slist * -gen_llprefixlen(void) -{ - switch (linktype) { - - case DLT_PPI: - return gen_ppi_llprefixlen(); - - - case DLT_IEEE802_11_RADIO: - return gen_radiotap_llprefixlen(); - - default: - return NULL; - } -} - -/* - * Generate code to match a particular packet type by matching the - * link-layer type field or fields in the 802.2 LLC header. - * - * "proto" is an Ethernet type value, if > ETHERMTU, or an LLC SAP - * value, if <= ETHERMTU. - */ -static struct block * -gen_linktype(proto) - register int proto; -{ - struct block *b0, *b1, *b2; - - /* are we checking MPLS-encapsulated packets? */ - if (label_stack_depth > 0) { - switch (proto) { - case ETHERTYPE_IP: - case PPP_IP: - /* FIXME add other L3 proto IDs */ - return gen_mpls_linktype(Q_IP); - - case ETHERTYPE_IPV6: - case PPP_IPV6: - /* FIXME add other L3 proto IDs */ - return gen_mpls_linktype(Q_IPV6); - - default: - bpf_error("unsupported protocol over mpls"); - /* NOTREACHED */ - } - } - - switch (linktype) { - - case DLT_EN10MB: - return gen_ether_linktype(proto); - /*NOTREACHED*/ - break; - - case DLT_C_HDLC: - switch (proto) { - - case LLCSAP_ISONS: - proto = (proto << 8 | LLCSAP_ISONS); - /* fall through */ - - default: - return gen_cmp(OR_LINK, off_linktype, BPF_H, - (bpf_int32)proto); - /*NOTREACHED*/ - break; - } - break; - - case DLT_PPI: - case DLT_FDDI: - case DLT_IEEE802: - case DLT_IEEE802_11: - case DLT_IEEE802_11_RADIO_AVS: - case DLT_IEEE802_11_RADIO: - case DLT_PRISM_HEADER: - case DLT_ATM_RFC1483: - case DLT_ATM_CLIP: - case DLT_IP_OVER_FC: - return gen_llc_linktype(proto); - /*NOTREACHED*/ - break; - - case DLT_SUNATM: - /* - * If "is_lane" is set, check for a LANE-encapsulated - * version of this protocol, otherwise check for an - * LLC-encapsulated version of this protocol. - * - * We assume LANE means Ethernet, not Token Ring. - */ - if (is_lane) { - /* - * Check that the packet doesn't begin with an - * LE Control marker. (We've already generated - * a test for LANE.) - */ - b0 = gen_cmp(OR_LINK, SUNATM_PKT_BEGIN_POS, BPF_H, - 0xFF00); - gen_not(b0); - - /* - * Now generate an Ethernet test. - */ - b1 = gen_ether_linktype(proto); - gen_and(b0, b1); - return b1; - } else { - /* - * Check for LLC encapsulation and then check the - * protocol. - */ - b0 = gen_atmfield_code(A_PROTOTYPE, PT_LLC, BPF_JEQ, 0); - b1 = gen_llc_linktype(proto); - gen_and(b0, b1); - return b1; - } - /*NOTREACHED*/ - break; - - case DLT_LINUX_SLL: - return gen_linux_sll_linktype(proto); - /*NOTREACHED*/ - break; - - case DLT_SLIP: - case DLT_SLIP_BSDOS: - case DLT_RAW: - /* - * These types don't provide any type field; packets - * are always IPv4 or IPv6. - * - * XXX - for IPv4, check for a version number of 4, and, - * for IPv6, check for a version number of 6? - */ - switch (proto) { - - case ETHERTYPE_IP: - /* Check for a version number of 4. */ - return gen_mcmp(OR_LINK, 0, BPF_B, 0x40, 0xF0); -#ifdef INET6 - case ETHERTYPE_IPV6: - /* Check for a version number of 6. */ - return gen_mcmp(OR_LINK, 0, BPF_B, 0x60, 0xF0); -#endif - - default: - return gen_false(); /* always false */ - } - /*NOTREACHED*/ - break; - - case DLT_PPP: - case DLT_PPP_PPPD: - case DLT_PPP_SERIAL: - case DLT_PPP_ETHER: - /* - * We use Ethernet protocol types inside libpcap; - * map them to the corresponding PPP protocol types. - */ - switch (proto) { - - case ETHERTYPE_IP: - proto = PPP_IP; - break; - -#ifdef INET6 - case ETHERTYPE_IPV6: - proto = PPP_IPV6; - break; -#endif - - case ETHERTYPE_DN: - proto = PPP_DECNET; - break; - - case ETHERTYPE_ATALK: - proto = PPP_APPLE; - break; - - case ETHERTYPE_NS: - proto = PPP_NS; - break; - - case LLCSAP_ISONS: - proto = PPP_OSI; - break; - - case LLCSAP_8021D: - /* - * I'm assuming the "Bridging PDU"s that go - * over PPP are Spanning Tree Protocol - * Bridging PDUs. - */ - proto = PPP_BRPDU; - break; - - case LLCSAP_IPX: - proto = PPP_IPX; - break; - } - break; - - case DLT_PPP_BSDOS: - /* - * We use Ethernet protocol types inside libpcap; - * map them to the corresponding PPP protocol types. - */ - switch (proto) { - - case ETHERTYPE_IP: - b0 = gen_cmp(OR_LINK, off_linktype, BPF_H, PPP_IP); - b1 = gen_cmp(OR_LINK, off_linktype, BPF_H, PPP_VJC); - gen_or(b0, b1); - b0 = gen_cmp(OR_LINK, off_linktype, BPF_H, PPP_VJNC); - gen_or(b1, b0); - return b0; - -#ifdef INET6 - case ETHERTYPE_IPV6: - proto = PPP_IPV6; - /* more to go? */ - break; -#endif - - case ETHERTYPE_DN: - proto = PPP_DECNET; - break; - - case ETHERTYPE_ATALK: - proto = PPP_APPLE; - break; - - case ETHERTYPE_NS: - proto = PPP_NS; - break; - - case LLCSAP_ISONS: - proto = PPP_OSI; - break; - - case LLCSAP_8021D: - /* - * I'm assuming the "Bridging PDU"s that go - * over PPP are Spanning Tree Protocol - * Bridging PDUs. - */ - proto = PPP_BRPDU; - break; - - case LLCSAP_IPX: - proto = PPP_IPX; - break; - } - break; - - case DLT_NULL: - case DLT_LOOP: - case DLT_ENC: - /* - * For DLT_NULL, the link-layer header is a 32-bit - * word containing an AF_ value in *host* byte order, - * and for DLT_ENC, the link-layer header begins - * with a 32-bit work containing an AF_ value in - * host byte order. - * - * In addition, if we're reading a saved capture file, - * the host byte order in the capture may not be the - * same as the host byte order on this machine. - * - * For DLT_LOOP, the link-layer header is a 32-bit - * word containing an AF_ value in *network* byte order. - * - * XXX - AF_ values may, unfortunately, be platform- - * dependent; for example, FreeBSD's AF_INET6 is 24 - * whilst NetBSD's and OpenBSD's is 26. - * - * This means that, when reading a capture file, just - * checking for our AF_INET6 value won't work if the - * capture file came from another OS. - */ - switch (proto) { - - case ETHERTYPE_IP: - proto = AF_INET; - break; - -#ifdef INET6 - case ETHERTYPE_IPV6: - proto = AF_INET6; - break; -#endif - - default: - /* - * Not a type on which we support filtering. - * XXX - support those that have AF_ values - * #defined on this platform, at least? - */ - return gen_false(); - } - - if (linktype == DLT_NULL || linktype == DLT_ENC) { - /* - * The AF_ value is in host byte order, but - * the BPF interpreter will convert it to - * network byte order. - * - * If this is a save file, and it's from a - * machine with the opposite byte order to - * ours, we byte-swap the AF_ value. - * - * Then we run it through "htonl()", and - * generate code to compare against the result. - */ - if (bpf_pcap->sf.rfile != NULL && - bpf_pcap->sf.swapped) - proto = SWAPLONG(proto); - proto = htonl(proto); - } - return (gen_cmp(OR_LINK, 0, BPF_W, (bpf_int32)proto)); - -#ifdef HAVE_NET_PFVAR_H - case DLT_PFLOG: - /* - * af field is host byte order in contrast to the rest of - * the packet. - */ - if (proto == ETHERTYPE_IP) - return (gen_cmp(OR_LINK, offsetof(struct pfloghdr, af), - BPF_B, (bpf_int32)AF_INET)); -#ifdef INET6 - else if (proto == ETHERTYPE_IPV6) - return (gen_cmp(OR_LINK, offsetof(struct pfloghdr, af), - BPF_B, (bpf_int32)AF_INET6)); -#endif /* INET6 */ - else - return gen_false(); - /*NOTREACHED*/ - break; -#endif /* HAVE_NET_PFVAR_H */ - - case DLT_ARCNET: - case DLT_ARCNET_LINUX: - /* - * XXX should we check for first fragment if the protocol - * uses PHDS? - */ - switch (proto) { - - default: - return gen_false(); - -#ifdef INET6 - case ETHERTYPE_IPV6: - return (gen_cmp(OR_LINK, off_linktype, BPF_B, - (bpf_int32)ARCTYPE_INET6)); -#endif /* INET6 */ - - case ETHERTYPE_IP: - b0 = gen_cmp(OR_LINK, off_linktype, BPF_B, - (bpf_int32)ARCTYPE_IP); - b1 = gen_cmp(OR_LINK, off_linktype, BPF_B, - (bpf_int32)ARCTYPE_IP_OLD); - gen_or(b0, b1); - return (b1); - - case ETHERTYPE_ARP: - b0 = gen_cmp(OR_LINK, off_linktype, BPF_B, - (bpf_int32)ARCTYPE_ARP); - b1 = gen_cmp(OR_LINK, off_linktype, BPF_B, - (bpf_int32)ARCTYPE_ARP_OLD); - gen_or(b0, b1); - return (b1); - - case ETHERTYPE_REVARP: - return (gen_cmp(OR_LINK, off_linktype, BPF_B, - (bpf_int32)ARCTYPE_REVARP)); - - case ETHERTYPE_ATALK: - return (gen_cmp(OR_LINK, off_linktype, BPF_B, - (bpf_int32)ARCTYPE_ATALK)); - } - /*NOTREACHED*/ - break; - - case DLT_LTALK: - switch (proto) { - case ETHERTYPE_ATALK: - return gen_true(); - default: - return gen_false(); - } - /*NOTREACHED*/ - break; - - case DLT_FRELAY: - /* - * XXX - assumes a 2-byte Frame Relay header with - * DLCI and flags. What if the address is longer? - */ - switch (proto) { - - case ETHERTYPE_IP: - /* - * Check for the special NLPID for IP. - */ - return gen_cmp(OR_LINK, 2, BPF_H, (0x03<<8) | 0xcc); - -#ifdef INET6 - case ETHERTYPE_IPV6: - /* - * Check for the special NLPID for IPv6. - */ - return gen_cmp(OR_LINK, 2, BPF_H, (0x03<<8) | 0x8e); -#endif - - case LLCSAP_ISONS: - /* - * Check for several OSI protocols. - * - * Frame Relay packets typically have an OSI - * NLPID at the beginning; we check for each - * of them. - * - * What we check for is the NLPID and a frame - * control field of UI, i.e. 0x03 followed - * by the NLPID. - */ - b0 = gen_cmp(OR_LINK, 2, BPF_H, (0x03<<8) | ISO8473_CLNP); - b1 = gen_cmp(OR_LINK, 2, BPF_H, (0x03<<8) | ISO9542_ESIS); - b2 = gen_cmp(OR_LINK, 2, BPF_H, (0x03<<8) | ISO10589_ISIS); - gen_or(b1, b2); - gen_or(b0, b2); - return b2; - - default: - return gen_false(); - } - /*NOTREACHED*/ - break; - - case DLT_JUNIPER_MFR: - case DLT_JUNIPER_MLFR: - case DLT_JUNIPER_MLPPP: - case DLT_JUNIPER_ATM1: - case DLT_JUNIPER_ATM2: - case DLT_JUNIPER_PPPOE: - case DLT_JUNIPER_PPPOE_ATM: - case DLT_JUNIPER_GGSN: - case DLT_JUNIPER_ES: - case DLT_JUNIPER_MONITOR: - case DLT_JUNIPER_SERVICES: - case DLT_JUNIPER_ETHER: - case DLT_JUNIPER_PPP: - case DLT_JUNIPER_FRELAY: - case DLT_JUNIPER_CHDLC: - case DLT_JUNIPER_VP: - /* just lets verify the magic number for now - - * on ATM we may have up to 6 different encapsulations on the wire - * and need a lot of heuristics to figure out that the payload - * might be; - * - * FIXME encapsulation specific BPF_ filters - */ - return gen_mcmp(OR_LINK, 0, BPF_W, 0x4d474300, 0xffffff00); /* compare the magic number */ - - case DLT_LINUX_IRDA: - bpf_error("IrDA link-layer type filtering not implemented"); - - case DLT_DOCSIS: - bpf_error("DOCSIS link-layer type filtering not implemented"); - - case DLT_LINUX_LAPD: - bpf_error("LAPD link-layer type filtering not implemented"); - } - - /* - * All the types that have no encapsulation should either be - * handled as DLT_SLIP, DLT_SLIP_BSDOS, and DLT_RAW are, if - * all packets are IP packets, or should be handled in some - * special case, if none of them are (if some are and some - * aren't, the lack of encapsulation is a problem, as we'd - * have to find some other way of determining the packet type). - * - * Therefore, if "off_linktype" is -1, there's an error. - */ - if (off_linktype == (u_int)-1) - abort(); - - /* - * Any type not handled above should always have an Ethernet - * type at an offset of "off_linktype". (PPP is partially - * handled above - the protocol type is mapped from the - * Ethernet and LLC types we use internally to the corresponding - * PPP type - but the PPP type is always specified by a value - * at "off_linktype", so we don't have to do the code generation - * above.) - */ - return gen_cmp(OR_LINK, off_linktype, BPF_H, (bpf_int32)proto); -} - -/* - * Check for an LLC SNAP packet with a given organization code and - * protocol type; we check the entire contents of the 802.2 LLC and - * snap headers, checking for DSAP and SSAP of SNAP and a control - * field of 0x03 in the LLC header, and for the specified organization - * code and protocol type in the SNAP header. - */ -static struct block * -gen_snap(orgcode, ptype, offset) - bpf_u_int32 orgcode; - bpf_u_int32 ptype; - u_int offset; -{ - u_char snapblock[8]; - - snapblock[0] = LLCSAP_SNAP; /* DSAP = SNAP */ - snapblock[1] = LLCSAP_SNAP; /* SSAP = SNAP */ - snapblock[2] = 0x03; /* control = UI */ - snapblock[3] = (orgcode >> 16); /* upper 8 bits of organization code */ - snapblock[4] = (orgcode >> 8); /* middle 8 bits of organization code */ - snapblock[5] = (orgcode >> 0); /* lower 8 bits of organization code */ - snapblock[6] = (ptype >> 8); /* upper 8 bits of protocol type */ - snapblock[7] = (ptype >> 0); /* lower 8 bits of protocol type */ - return gen_bcmp(OR_LINK, offset, 8, snapblock); -} - -/* - * Generate code to match a particular packet type, for link-layer types - * using 802.2 LLC headers. - * - * This is *NOT* used for Ethernet; "gen_ether_linktype()" is used - * for that - it handles the D/I/X Ethernet vs. 802.3+802.2 issues. - * - * "proto" is an Ethernet type value, if > ETHERMTU, or an LLC SAP - * value, if <= ETHERMTU. We use that to determine whether to - * match the DSAP or both DSAP and LSAP or to check the OUI and - * protocol ID in a SNAP header. - */ -static struct block * -gen_llc_linktype(proto) - int proto; -{ - /* - * XXX - handle token-ring variable-length header. - */ - switch (proto) { - - case LLCSAP_IP: - case LLCSAP_ISONS: - case LLCSAP_NETBEUI: - /* - * XXX - should we check both the DSAP and the - * SSAP, like this, or should we check just the - * DSAP, as we do for other types <= ETHERMTU - * (i.e., other SAP values)? - */ - return gen_cmp(OR_LINK, off_linktype, BPF_H, (bpf_u_int32) - ((proto << 8) | proto)); - - case LLCSAP_IPX: - /* - * XXX - are there ever SNAP frames for IPX on - * non-Ethernet 802.x networks? - */ - return gen_cmp(OR_LINK, off_linktype, BPF_B, - (bpf_int32)LLCSAP_IPX); - - case ETHERTYPE_ATALK: - /* - * 802.2-encapsulated ETHERTYPE_ATALK packets are - * SNAP packets with an organization code of - * 0x080007 (Apple, for Appletalk) and a protocol - * type of ETHERTYPE_ATALK (Appletalk). - * - * XXX - check for an organization code of - * encapsulated Ethernet as well? - */ - return gen_snap(0x080007, ETHERTYPE_ATALK, off_linktype); - - default: - /* - * XXX - we don't have to check for IPX 802.3 - * here, but should we check for the IPX Ethertype? - */ - if (proto <= ETHERMTU) { - /* - * This is an LLC SAP value, so check - * the DSAP. - */ - return gen_cmp(OR_LINK, off_linktype, BPF_B, - (bpf_int32)proto); - } else { - /* - * This is an Ethernet type; we assume that it's - * unlikely that it'll appear in the right place - * at random, and therefore check only the - * location that would hold the Ethernet type - * in a SNAP frame with an organization code of - * 0x000000 (encapsulated Ethernet). - * - * XXX - if we were to check for the SNAP DSAP and - * LSAP, as per XXX, and were also to check for an - * organization code of 0x000000 (encapsulated - * Ethernet), we'd do - * - * return gen_snap(0x000000, proto, - * off_linktype); - * - * here; for now, we don't, as per the above. - * I don't know whether it's worth the extra CPU - * time to do the right check or not. - */ - return gen_cmp(OR_LINK, off_linktype+6, BPF_H, - (bpf_int32)proto); - } - } -} - -static struct block * -gen_hostop(addr, mask, dir, proto, src_off, dst_off) - bpf_u_int32 addr; - bpf_u_int32 mask; - int dir, proto; - u_int src_off, dst_off; -{ - struct block *b0, *b1; - u_int offset; - - switch (dir) { - - case Q_SRC: - offset = src_off; - break; - - case Q_DST: - offset = dst_off; - break; - - case Q_AND: - b0 = gen_hostop(addr, mask, Q_SRC, proto, src_off, dst_off); - b1 = gen_hostop(addr, mask, Q_DST, proto, src_off, dst_off); - gen_and(b0, b1); - return b1; - - case Q_OR: - case Q_DEFAULT: - b0 = gen_hostop(addr, mask, Q_SRC, proto, src_off, dst_off); - b1 = gen_hostop(addr, mask, Q_DST, proto, src_off, dst_off); - gen_or(b0, b1); - return b1; - - default: - abort(); - } - b0 = gen_linktype(proto); - b1 = gen_mcmp(OR_NET, offset, BPF_W, (bpf_int32)addr, mask); - gen_and(b0, b1); - return b1; -} - -#ifdef INET6 -static struct block * -gen_hostop6(addr, mask, dir, proto, src_off, dst_off) - struct in6_addr *addr; - struct in6_addr *mask; - int dir, proto; - u_int src_off, dst_off; -{ - struct block *b0, *b1; - u_int offset; - u_int32_t *a, *m; - - switch (dir) { - - case Q_SRC: - offset = src_off; - break; - - case Q_DST: - offset = dst_off; - break; - - case Q_AND: - b0 = gen_hostop6(addr, mask, Q_SRC, proto, src_off, dst_off); - b1 = gen_hostop6(addr, mask, Q_DST, proto, src_off, dst_off); - gen_and(b0, b1); - return b1; - - case Q_OR: - case Q_DEFAULT: - b0 = gen_hostop6(addr, mask, Q_SRC, proto, src_off, dst_off); - b1 = gen_hostop6(addr, mask, Q_DST, proto, src_off, dst_off); - gen_or(b0, b1); - return b1; - - default: - abort(); - } - /* this order is important */ - a = (u_int32_t *)addr; - m = (u_int32_t *)mask; - b1 = gen_mcmp(OR_NET, offset + 12, BPF_W, ntohl(a[3]), ntohl(m[3])); - b0 = gen_mcmp(OR_NET, offset + 8, BPF_W, ntohl(a[2]), ntohl(m[2])); - gen_and(b0, b1); - b0 = gen_mcmp(OR_NET, offset + 4, BPF_W, ntohl(a[1]), ntohl(m[1])); - gen_and(b0, b1); - b0 = gen_mcmp(OR_NET, offset + 0, BPF_W, ntohl(a[0]), ntohl(m[0])); - gen_and(b0, b1); - b0 = gen_linktype(proto); - gen_and(b0, b1); - return b1; -} -#endif /*INET6*/ - -static struct block * -gen_ehostop(eaddr, dir) - register const u_char *eaddr; - register int dir; -{ - register struct block *b0, *b1; - - switch (dir) { - case Q_SRC: - return gen_bcmp(OR_LINK, off_mac + 6, 6, eaddr); - - case Q_DST: - return gen_bcmp(OR_LINK, off_mac + 0, 6, eaddr); - - case Q_AND: - b0 = gen_ehostop(eaddr, Q_SRC); - b1 = gen_ehostop(eaddr, Q_DST); - gen_and(b0, b1); - return b1; - - case Q_DEFAULT: - case Q_OR: - b0 = gen_ehostop(eaddr, Q_SRC); - b1 = gen_ehostop(eaddr, Q_DST); - gen_or(b0, b1); - return b1; - } - abort(); - /* NOTREACHED */ -} - -/* - * Like gen_ehostop, but for DLT_FDDI - */ -static struct block * -gen_fhostop(eaddr, dir) - register const u_char *eaddr; - register int dir; -{ - struct block *b0, *b1; - - switch (dir) { - case Q_SRC: -#ifdef PCAP_FDDIPAD - return gen_bcmp(OR_LINK, 6 + 1 + pcap_fddipad, 6, eaddr); -#else - return gen_bcmp(OR_LINK, 6 + 1, 6, eaddr); -#endif - - case Q_DST: -#ifdef PCAP_FDDIPAD - return gen_bcmp(OR_LINK, 0 + 1 + pcap_fddipad, 6, eaddr); -#else - return gen_bcmp(OR_LINK, 0 + 1, 6, eaddr); -#endif - - case Q_AND: - b0 = gen_fhostop(eaddr, Q_SRC); - b1 = gen_fhostop(eaddr, Q_DST); - gen_and(b0, b1); - return b1; - - case Q_DEFAULT: - case Q_OR: - b0 = gen_fhostop(eaddr, Q_SRC); - b1 = gen_fhostop(eaddr, Q_DST); - gen_or(b0, b1); - return b1; - } - abort(); - /* NOTREACHED */ -} - -/* - * Like gen_ehostop, but for DLT_IEEE802 (Token Ring) - */ -static struct block * -gen_thostop(eaddr, dir) - register const u_char *eaddr; - register int dir; -{ - register struct block *b0, *b1; - - switch (dir) { - case Q_SRC: - return gen_bcmp(OR_LINK, 8, 6, eaddr); - - case Q_DST: - return gen_bcmp(OR_LINK, 2, 6, eaddr); - - case Q_AND: - b0 = gen_thostop(eaddr, Q_SRC); - b1 = gen_thostop(eaddr, Q_DST); - gen_and(b0, b1); - return b1; - - case Q_DEFAULT: - case Q_OR: - b0 = gen_thostop(eaddr, Q_SRC); - b1 = gen_thostop(eaddr, Q_DST); - gen_or(b0, b1); - return b1; - } - abort(); - /* NOTREACHED */ -} - -/* - * Like gen_ehostop, but for DLT_IEEE802_11 (802.11 wireless LAN) - */ -static struct block * -gen_wlanhostop(eaddr, dir) - register const u_char *eaddr; - register int dir; -{ - register struct block *b0, *b1, *b2; - register struct slist *s; - - switch (dir) { - case Q_SRC: - /* - * Oh, yuk. - * - * For control frames, there is no SA. - * - * For management frames, SA is at an - * offset of 10 from the beginning of - * the packet. - * - * For data frames, SA is at an offset - * of 10 from the beginning of the packet - * if From DS is clear, at an offset of - * 16 from the beginning of the packet - * if From DS is set and To DS is clear, - * and an offset of 24 from the beginning - * of the packet if From DS is set and To DS - * is set. - */ - - /* - * Generate the tests to be done for data frames - * with From DS set. - * - * First, check for To DS set, i.e. check "link[1] & 0x01". - */ - s = gen_load_a(OR_LINK, 1, BPF_B); - b1 = new_block(JMP(BPF_JSET)); - b1->s.k = 0x01; /* To DS */ - b1->stmts = s; - - /* - * If To DS is set, the SA is at 24. - */ - b0 = gen_bcmp(OR_LINK, 24, 6, eaddr); - gen_and(b1, b0); - - /* - * Now, check for To DS not set, i.e. check - * "!(link[1] & 0x01)". - */ - s = gen_load_a(OR_LINK, 1, BPF_B); - b2 = new_block(JMP(BPF_JSET)); - b2->s.k = 0x01; /* To DS */ - b2->stmts = s; - gen_not(b2); - - /* - * If To DS is not set, the SA is at 16. - */ - b1 = gen_bcmp(OR_LINK, 16, 6, eaddr); - gen_and(b2, b1); - - /* - * Now OR together the last two checks. That gives - * the complete set of checks for data frames with - * From DS set. - */ - gen_or(b1, b0); - - /* - * Now check for From DS being set, and AND that with - * the ORed-together checks. - */ - s = gen_load_a(OR_LINK, 1, BPF_B); - b1 = new_block(JMP(BPF_JSET)); - b1->s.k = 0x02; /* From DS */ - b1->stmts = s; - gen_and(b1, b0); - - /* - * Now check for data frames with From DS not set. - */ - s = gen_load_a(OR_LINK, 1, BPF_B); - b2 = new_block(JMP(BPF_JSET)); - b2->s.k = 0x02; /* From DS */ - b2->stmts = s; - gen_not(b2); - - /* - * If From DS isn't set, the SA is at 10. - */ - b1 = gen_bcmp(OR_LINK, 10, 6, eaddr); - gen_and(b2, b1); - - /* - * Now OR together the checks for data frames with - * From DS not set and for data frames with From DS - * set; that gives the checks done for data frames. - */ - gen_or(b1, b0); - - /* - * Now check for a data frame. - * I.e, check "link[0] & 0x08". - */ - gen_load_a(OR_LINK, 0, BPF_B); - b1 = new_block(JMP(BPF_JSET)); - b1->s.k = 0x08; - b1->stmts = s; - - /* - * AND that with the checks done for data frames. - */ - gen_and(b1, b0); - - /* - * If the high-order bit of the type value is 0, this - * is a management frame. - * I.e, check "!(link[0] & 0x08)". - */ - s = gen_load_a(OR_LINK, 0, BPF_B); - b2 = new_block(JMP(BPF_JSET)); - b2->s.k = 0x08; - b2->stmts = s; - gen_not(b2); - - /* - * For management frames, the SA is at 10. - */ - b1 = gen_bcmp(OR_LINK, 10, 6, eaddr); - gen_and(b2, b1); - - /* - * OR that with the checks done for data frames. - * That gives the checks done for management and - * data frames. - */ - gen_or(b1, b0); - - /* - * If the low-order bit of the type value is 1, - * this is either a control frame or a frame - * with a reserved type, and thus not a - * frame with an SA. - * - * I.e., check "!(link[0] & 0x04)". - */ - s = gen_load_a(OR_LINK, 0, BPF_B); - b1 = new_block(JMP(BPF_JSET)); - b1->s.k = 0x04; - b1->stmts = s; - gen_not(b1); - - /* - * AND that with the checks for data and management - * frames. - */ - gen_and(b1, b0); - return b0; - - case Q_DST: - /* - * Oh, yuk. - * - * For control frames, there is no DA. - * - * For management frames, DA is at an - * offset of 4 from the beginning of - * the packet. - * - * For data frames, DA is at an offset - * of 4 from the beginning of the packet - * if To DS is clear and at an offset of - * 16 from the beginning of the packet - * if To DS is set. - */ - - /* - * Generate the tests to be done for data frames. - * - * First, check for To DS set, i.e. "link[1] & 0x01". - */ - s = gen_load_a(OR_LINK, 1, BPF_B); - b1 = new_block(JMP(BPF_JSET)); - b1->s.k = 0x01; /* To DS */ - b1->stmts = s; - - /* - * If To DS is set, the DA is at 16. - */ - b0 = gen_bcmp(OR_LINK, 16, 6, eaddr); - gen_and(b1, b0); - - /* - * Now, check for To DS not set, i.e. check - * "!(link[1] & 0x01)". - */ - s = gen_load_a(OR_LINK, 1, BPF_B); - b2 = new_block(JMP(BPF_JSET)); - b2->s.k = 0x01; /* To DS */ - b2->stmts = s; - gen_not(b2); - - /* - * If To DS is not set, the DA is at 4. - */ - b1 = gen_bcmp(OR_LINK, 4, 6, eaddr); - gen_and(b2, b1); - - /* - * Now OR together the last two checks. That gives - * the complete set of checks for data frames. - */ - gen_or(b1, b0); - - /* - * Now check for a data frame. - * I.e, check "link[0] & 0x08". - */ - s = gen_load_a(OR_LINK, 0, BPF_B); - b1 = new_block(JMP(BPF_JSET)); - b1->s.k = 0x08; - b1->stmts = s; - - /* - * AND that with the checks done for data frames. - */ - gen_and(b1, b0); - - /* - * If the high-order bit of the type value is 0, this - * is a management frame. - * I.e, check "!(link[0] & 0x08)". - */ - s = gen_load_a(OR_LINK, 0, BPF_B); - b2 = new_block(JMP(BPF_JSET)); - b2->s.k = 0x08; - b2->stmts = s; - gen_not(b2); - - /* - * For management frames, the DA is at 4. - */ - b1 = gen_bcmp(OR_LINK, 4, 6, eaddr); - gen_and(b2, b1); - - /* - * OR that with the checks done for data frames. - * That gives the checks done for management and - * data frames. - */ - gen_or(b1, b0); - - /* - * If the low-order bit of the type value is 1, - * this is either a control frame or a frame - * with a reserved type, and thus not a - * frame with an SA. - * - * I.e., check "!(link[0] & 0x04)". - */ - s = gen_load_a(OR_LINK, 0, BPF_B); - b1 = new_block(JMP(BPF_JSET)); - b1->s.k = 0x04; - b1->stmts = s; - gen_not(b1); - - /* - * AND that with the checks for data and management - * frames. - */ - gen_and(b1, b0); - return b0; - - case Q_AND: - b0 = gen_wlanhostop(eaddr, Q_SRC); - b1 = gen_wlanhostop(eaddr, Q_DST); - gen_and(b0, b1); - return b1; - - case Q_DEFAULT: - case Q_OR: - b0 = gen_wlanhostop(eaddr, Q_SRC); - b1 = gen_wlanhostop(eaddr, Q_DST); - gen_or(b0, b1); - return b1; - } - abort(); - /* NOTREACHED */ -} - -/* - * Like gen_ehostop, but for RFC 2625 IP-over-Fibre-Channel. - * (We assume that the addresses are IEEE 48-bit MAC addresses, - * as the RFC states.) - */ -static struct block * -gen_ipfchostop(eaddr, dir) - register const u_char *eaddr; - register int dir; -{ - register struct block *b0, *b1; - - switch (dir) { - case Q_SRC: - return gen_bcmp(OR_LINK, 10, 6, eaddr); - - case Q_DST: - return gen_bcmp(OR_LINK, 2, 6, eaddr); - - case Q_AND: - b0 = gen_ipfchostop(eaddr, Q_SRC); - b1 = gen_ipfchostop(eaddr, Q_DST); - gen_and(b0, b1); - return b1; - - case Q_DEFAULT: - case Q_OR: - b0 = gen_ipfchostop(eaddr, Q_SRC); - b1 = gen_ipfchostop(eaddr, Q_DST); - gen_or(b0, b1); - return b1; - } - abort(); - /* NOTREACHED */ -} - -/* - * This is quite tricky because there may be pad bytes in front of the - * DECNET header, and then there are two possible data packet formats that - * carry both src and dst addresses, plus 5 packet types in a format that - * carries only the src node, plus 2 types that use a different format and - * also carry just the src node. - * - * Yuck. - * - * Instead of doing those all right, we just look for data packets with - * 0 or 1 bytes of padding. If you want to look at other packets, that - * will require a lot more hacking. - * - * To add support for filtering on DECNET "areas" (network numbers) - * one would want to add a "mask" argument to this routine. That would - * make the filter even more inefficient, although one could be clever - * and not generate masking instructions if the mask is 0xFFFF. - */ -static struct block * -gen_dnhostop(addr, dir) - bpf_u_int32 addr; - int dir; -{ - struct block *b0, *b1, *b2, *tmp; - u_int offset_lh; /* offset if long header is received */ - u_int offset_sh; /* offset if short header is received */ - - switch (dir) { - - case Q_DST: - offset_sh = 1; /* follows flags */ - offset_lh = 7; /* flgs,darea,dsubarea,HIORD */ - break; - - case Q_SRC: - offset_sh = 3; /* follows flags, dstnode */ - offset_lh = 15; /* flgs,darea,dsubarea,did,sarea,ssub,HIORD */ - break; - - case Q_AND: - /* Inefficient because we do our Calvinball dance twice */ - b0 = gen_dnhostop(addr, Q_SRC); - b1 = gen_dnhostop(addr, Q_DST); - gen_and(b0, b1); - return b1; - - case Q_OR: - case Q_DEFAULT: - /* Inefficient because we do our Calvinball dance twice */ - b0 = gen_dnhostop(addr, Q_SRC); - b1 = gen_dnhostop(addr, Q_DST); - gen_or(b0, b1); - return b1; - - case Q_ISO: - bpf_error("ISO host filtering not implemented"); - - default: - abort(); - } - b0 = gen_linktype(ETHERTYPE_DN); - /* Check for pad = 1, long header case */ - tmp = gen_mcmp(OR_NET, 2, BPF_H, - (bpf_int32)ntohs(0x0681), (bpf_int32)ntohs(0x07FF)); - b1 = gen_cmp(OR_NET, 2 + 1 + offset_lh, - BPF_H, (bpf_int32)ntohs((u_short)addr)); - gen_and(tmp, b1); - /* Check for pad = 0, long header case */ - tmp = gen_mcmp(OR_NET, 2, BPF_B, (bpf_int32)0x06, (bpf_int32)0x7); - b2 = gen_cmp(OR_NET, 2 + offset_lh, BPF_H, (bpf_int32)ntohs((u_short)addr)); - gen_and(tmp, b2); - gen_or(b2, b1); - /* Check for pad = 1, short header case */ - tmp = gen_mcmp(OR_NET, 2, BPF_H, - (bpf_int32)ntohs(0x0281), (bpf_int32)ntohs(0x07FF)); - b2 = gen_cmp(OR_NET, 2 + 1 + offset_sh, BPF_H, (bpf_int32)ntohs((u_short)addr)); - gen_and(tmp, b2); - gen_or(b2, b1); - /* Check for pad = 0, short header case */ - tmp = gen_mcmp(OR_NET, 2, BPF_B, (bpf_int32)0x02, (bpf_int32)0x7); - b2 = gen_cmp(OR_NET, 2 + offset_sh, BPF_H, (bpf_int32)ntohs((u_short)addr)); - gen_and(tmp, b2); - gen_or(b2, b1); - - /* Combine with test for linktype */ - gen_and(b0, b1); - return b1; -} - -/* - * Generate a check for IPv4 or IPv6 for MPLS-encapsulated packets; - * test the bottom-of-stack bit, and then check the version number - * field in the IP header. - */ -static struct block * -gen_mpls_linktype(proto) - int proto; -{ - struct block *b0, *b1; - - switch (proto) { - - case Q_IP: - /* match the bottom-of-stack bit */ - b0 = gen_mcmp(OR_NET, -2, BPF_B, 0x01, 0x01); - /* match the IPv4 version number */ - b1 = gen_mcmp(OR_NET, 0, BPF_B, 0x40, 0xf0); - gen_and(b0, b1); - return b1; - - case Q_IPV6: - /* match the bottom-of-stack bit */ - b0 = gen_mcmp(OR_NET, -2, BPF_B, 0x01, 0x01); - /* match the IPv4 version number */ - b1 = gen_mcmp(OR_NET, 0, BPF_B, 0x60, 0xf0); - gen_and(b0, b1); - return b1; - - default: - abort(); - } -} - -static struct block * -gen_host(addr, mask, proto, dir, type) - bpf_u_int32 addr; - bpf_u_int32 mask; - int proto; - int dir; - int type; -{ - struct block *b0, *b1; - const char *typestr; - - if (type == Q_NET) - typestr = "net"; - else - typestr = "host"; - - switch (proto) { - - case Q_DEFAULT: - b0 = gen_host(addr, mask, Q_IP, dir, type); - /* - * Only check for non-IPv4 addresses if we're not - * checking MPLS-encapsulated packets. - */ - if (label_stack_depth == 0) { - b1 = gen_host(addr, mask, Q_ARP, dir, type); - gen_or(b0, b1); - b0 = gen_host(addr, mask, Q_RARP, dir, type); - gen_or(b1, b0); - } - return b0; - - case Q_IP: - return gen_hostop(addr, mask, dir, ETHERTYPE_IP, 12, 16); - - case Q_RARP: - return gen_hostop(addr, mask, dir, ETHERTYPE_REVARP, 14, 24); - - case Q_ARP: - return gen_hostop(addr, mask, dir, ETHERTYPE_ARP, 14, 24); - - case Q_TCP: - bpf_error("'tcp' modifier applied to %s", typestr); - - case Q_SCTP: - bpf_error("'sctp' modifier applied to %s", typestr); - - case Q_UDP: - bpf_error("'udp' modifier applied to %s", typestr); - - case Q_ICMP: - bpf_error("'icmp' modifier applied to %s", typestr); - - case Q_IGMP: - bpf_error("'igmp' modifier applied to %s", typestr); - - case Q_IGRP: - bpf_error("'igrp' modifier applied to %s", typestr); - - case Q_PIM: - bpf_error("'pim' modifier applied to %s", typestr); - - case Q_VRRP: - bpf_error("'vrrp' modifier applied to %s", typestr); - - case Q_ATALK: - bpf_error("ATALK host filtering not implemented"); - - case Q_AARP: - bpf_error("AARP host filtering not implemented"); - - case Q_DECNET: - return gen_dnhostop(addr, dir); - - case Q_SCA: - bpf_error("SCA host filtering not implemented"); - - case Q_LAT: - bpf_error("LAT host filtering not implemented"); - - case Q_MOPDL: - bpf_error("MOPDL host filtering not implemented"); - - case Q_MOPRC: - bpf_error("MOPRC host filtering not implemented"); - -#ifdef INET6 - case Q_IPV6: - bpf_error("'ip6' modifier applied to ip host"); - - case Q_ICMPV6: - bpf_error("'icmp6' modifier applied to %s", typestr); -#endif /* INET6 */ - - case Q_AH: - bpf_error("'ah' modifier applied to %s", typestr); - - case Q_ESP: - bpf_error("'esp' modifier applied to %s", typestr); - - case Q_ISO: - bpf_error("ISO host filtering not implemented"); - - case Q_ESIS: - bpf_error("'esis' modifier applied to %s", typestr); - - case Q_ISIS: - bpf_error("'isis' modifier applied to %s", typestr); - - case Q_CLNP: - bpf_error("'clnp' modifier applied to %s", typestr); - - case Q_STP: - bpf_error("'stp' modifier applied to %s", typestr); - - case Q_IPX: - bpf_error("IPX host filtering not implemented"); - - case Q_NETBEUI: - bpf_error("'netbeui' modifier applied to %s", typestr); - - case Q_RADIO: - bpf_error("'radio' modifier applied to %s", typestr); - - default: - abort(); - } - /* NOTREACHED */ -} - -#ifdef INET6 -static struct block * -gen_host6(addr, mask, proto, dir, type) - struct in6_addr *addr; - struct in6_addr *mask; - int proto; - int dir; - int type; -{ - const char *typestr; - - if (type == Q_NET) - typestr = "net"; - else - typestr = "host"; - - switch (proto) { - - case Q_DEFAULT: - return gen_host6(addr, mask, Q_IPV6, dir, type); - - case Q_IP: - bpf_error("'ip' modifier applied to ip6 %s", typestr); - - case Q_RARP: - bpf_error("'rarp' modifier applied to ip6 %s", typestr); - - case Q_ARP: - bpf_error("'arp' modifier applied to ip6 %s", typestr); - - case Q_SCTP: - bpf_error("'sctp' modifier applied to %s", typestr); - - case Q_TCP: - bpf_error("'tcp' modifier applied to %s", typestr); - - case Q_UDP: - bpf_error("'udp' modifier applied to %s", typestr); - - case Q_ICMP: - bpf_error("'icmp' modifier applied to %s", typestr); - - case Q_IGMP: - bpf_error("'igmp' modifier applied to %s", typestr); - - case Q_IGRP: - bpf_error("'igrp' modifier applied to %s", typestr); - - case Q_PIM: - bpf_error("'pim' modifier applied to %s", typestr); - - case Q_VRRP: - bpf_error("'vrrp' modifier applied to %s", typestr); - - case Q_ATALK: - bpf_error("ATALK host filtering not implemented"); - - case Q_AARP: - bpf_error("AARP host filtering not implemented"); - - case Q_DECNET: - bpf_error("'decnet' modifier applied to ip6 %s", typestr); - - case Q_SCA: - bpf_error("SCA host filtering not implemented"); - - case Q_LAT: - bpf_error("LAT host filtering not implemented"); - - case Q_MOPDL: - bpf_error("MOPDL host filtering not implemented"); - - case Q_MOPRC: - bpf_error("MOPRC host filtering not implemented"); - - case Q_IPV6: - return gen_hostop6(addr, mask, dir, ETHERTYPE_IPV6, 8, 24); - - case Q_ICMPV6: - bpf_error("'icmp6' modifier applied to %s", typestr); - - case Q_AH: - bpf_error("'ah' modifier applied to %s", typestr); - - case Q_ESP: - bpf_error("'esp' modifier applied to %s", typestr); - - case Q_ISO: - bpf_error("ISO host filtering not implemented"); - - case Q_ESIS: - bpf_error("'esis' modifier applied to %s", typestr); - - case Q_ISIS: - bpf_error("'isis' modifier applied to %s", typestr); - - case Q_CLNP: - bpf_error("'clnp' modifier applied to %s", typestr); - - case Q_STP: - bpf_error("'stp' modifier applied to %s", typestr); - - case Q_IPX: - bpf_error("IPX host filtering not implemented"); - - case Q_NETBEUI: - bpf_error("'netbeui' modifier applied to %s", typestr); - - case Q_RADIO: - bpf_error("'radio' modifier applied to %s", typestr); - - default: - abort(); - } - /* NOTREACHED */ -} -#endif /*INET6*/ - -#ifndef INET6 -static struct block * -gen_gateway(eaddr, alist, proto, dir) - const u_char *eaddr; - bpf_u_int32 **alist; - int proto; - int dir; -{ - struct block *b0, *b1, *tmp; - - if (dir != 0) - bpf_error("direction applied to 'gateway'"); - - switch (proto) { - case Q_DEFAULT: - case Q_IP: - case Q_ARP: - case Q_RARP: - switch (linktype) { - case DLT_EN10MB: - b0 = gen_ehostop(eaddr, Q_OR); - break; - case DLT_FDDI: - b0 = gen_fhostop(eaddr, Q_OR); - break; - case DLT_IEEE802: - b0 = gen_thostop(eaddr, Q_OR); - break; - case DLT_IEEE802_11: - case DLT_IEEE802_11_RADIO_AVS: - case DLT_PPI: - case DLT_IEEE802_11_RADIO: - case DLT_PRISM_HEADER: - b0 = gen_wlanhostop(eaddr, Q_OR); - break; - case DLT_SUNATM: - if (is_lane) { - /* - * Check that the packet doesn't begin with an - * LE Control marker. (We've already generated - * a test for LANE.) - */ - b1 = gen_cmp(OR_LINK, SUNATM_PKT_BEGIN_POS, BPF_H, - 0xFF00); - gen_not(b1); - - /* - * Now check the MAC address. - */ - b0 = gen_ehostop(eaddr, Q_OR); - gen_and(b1, b0); - } - break; - case DLT_IP_OVER_FC: - b0 = gen_ipfchostop(eaddr, Q_OR); - break; - default: - bpf_error( - "'gateway' supported only on ethernet/FDDI/token ring/802.11/Fibre Channel"); - } - b1 = gen_host(**alist++, 0xffffffff, proto, Q_OR, Q_HOST); - while (*alist) { - tmp = gen_host(**alist++, 0xffffffff, proto, Q_OR, - Q_HOST); - gen_or(b1, tmp); - b1 = tmp; - } - gen_not(b1); - gen_and(b0, b1); - return b1; - } - bpf_error("illegal modifier of 'gateway'"); - /* NOTREACHED */ -} -#endif - -struct block * -gen_proto_abbrev(proto) - int proto; -{ - struct block *b0; - struct block *b1; - - switch (proto) { - - case Q_SCTP: - b1 = gen_proto(IPPROTO_SCTP, Q_IP, Q_DEFAULT); -#ifdef INET6 - b0 = gen_proto(IPPROTO_SCTP, Q_IPV6, Q_DEFAULT); - gen_or(b0, b1); -#endif - break; - - case Q_TCP: - b1 = gen_proto(IPPROTO_TCP, Q_IP, Q_DEFAULT); -#ifdef INET6 - b0 = gen_proto(IPPROTO_TCP, Q_IPV6, Q_DEFAULT); - gen_or(b0, b1); -#endif - break; - - case Q_UDP: - b1 = gen_proto(IPPROTO_UDP, Q_IP, Q_DEFAULT); -#ifdef INET6 - b0 = gen_proto(IPPROTO_UDP, Q_IPV6, Q_DEFAULT); - gen_or(b0, b1); -#endif - break; - - case Q_ICMP: - b1 = gen_proto(IPPROTO_ICMP, Q_IP, Q_DEFAULT); - break; - -#ifndef IPPROTO_IGMP -#define IPPROTO_IGMP 2 -#endif - - case Q_IGMP: - b1 = gen_proto(IPPROTO_IGMP, Q_IP, Q_DEFAULT); - break; - -#ifndef IPPROTO_IGRP -#define IPPROTO_IGRP 9 -#endif - case Q_IGRP: - b1 = gen_proto(IPPROTO_IGRP, Q_IP, Q_DEFAULT); - break; - -#ifndef IPPROTO_PIM -#define IPPROTO_PIM 103 -#endif - - case Q_PIM: - b1 = gen_proto(IPPROTO_PIM, Q_IP, Q_DEFAULT); -#ifdef INET6 - b0 = gen_proto(IPPROTO_PIM, Q_IPV6, Q_DEFAULT); - gen_or(b0, b1); -#endif - break; - -#ifndef IPPROTO_VRRP -#define IPPROTO_VRRP 112 -#endif - - case Q_VRRP: - b1 = gen_proto(IPPROTO_VRRP, Q_IP, Q_DEFAULT); - break; - - case Q_IP: - b1 = gen_linktype(ETHERTYPE_IP); - break; - - case Q_ARP: - b1 = gen_linktype(ETHERTYPE_ARP); - break; - - case Q_RARP: - b1 = gen_linktype(ETHERTYPE_REVARP); - break; - - case Q_LINK: - bpf_error("link layer applied in wrong context"); - - case Q_ATALK: - b1 = gen_linktype(ETHERTYPE_ATALK); - break; - - case Q_AARP: - b1 = gen_linktype(ETHERTYPE_AARP); - break; - - case Q_DECNET: - b1 = gen_linktype(ETHERTYPE_DN); - break; - - case Q_SCA: - b1 = gen_linktype(ETHERTYPE_SCA); - break; - - case Q_LAT: - b1 = gen_linktype(ETHERTYPE_LAT); - break; - - case Q_MOPDL: - b1 = gen_linktype(ETHERTYPE_MOPDL); - break; - - case Q_MOPRC: - b1 = gen_linktype(ETHERTYPE_MOPRC); - break; - -#ifdef INET6 - case Q_IPV6: - b1 = gen_linktype(ETHERTYPE_IPV6); - break; - -#ifndef IPPROTO_ICMPV6 -#define IPPROTO_ICMPV6 58 -#endif - case Q_ICMPV6: - b1 = gen_proto(IPPROTO_ICMPV6, Q_IPV6, Q_DEFAULT); - break; -#endif /* INET6 */ - -#ifndef IPPROTO_AH -#define IPPROTO_AH 51 -#endif - case Q_AH: - b1 = gen_proto(IPPROTO_AH, Q_IP, Q_DEFAULT); -#ifdef INET6 - b0 = gen_proto(IPPROTO_AH, Q_IPV6, Q_DEFAULT); - gen_or(b0, b1); -#endif - break; - -#ifndef IPPROTO_ESP -#define IPPROTO_ESP 50 -#endif - case Q_ESP: - b1 = gen_proto(IPPROTO_ESP, Q_IP, Q_DEFAULT); -#ifdef INET6 - b0 = gen_proto(IPPROTO_ESP, Q_IPV6, Q_DEFAULT); - gen_or(b0, b1); -#endif - break; - - case Q_ISO: - b1 = gen_linktype(LLCSAP_ISONS); - break; - - case Q_ESIS: - b1 = gen_proto(ISO9542_ESIS, Q_ISO, Q_DEFAULT); - break; - - case Q_ISIS: - b1 = gen_proto(ISO10589_ISIS, Q_ISO, Q_DEFAULT); - break; - - case Q_ISIS_L1: /* all IS-IS Level1 PDU-Types */ - b0 = gen_proto(ISIS_L1_LAN_IIH, Q_ISIS, Q_DEFAULT); - b1 = gen_proto(ISIS_PTP_IIH, Q_ISIS, Q_DEFAULT); /* FIXME extract the circuit-type bits */ - gen_or(b0, b1); - b0 = gen_proto(ISIS_L1_LSP, Q_ISIS, Q_DEFAULT); - gen_or(b0, b1); - b0 = gen_proto(ISIS_L1_CSNP, Q_ISIS, Q_DEFAULT); - gen_or(b0, b1); - b0 = gen_proto(ISIS_L1_PSNP, Q_ISIS, Q_DEFAULT); - gen_or(b0, b1); - break; - - case Q_ISIS_L2: /* all IS-IS Level2 PDU-Types */ - b0 = gen_proto(ISIS_L2_LAN_IIH, Q_ISIS, Q_DEFAULT); - b1 = gen_proto(ISIS_PTP_IIH, Q_ISIS, Q_DEFAULT); /* FIXME extract the circuit-type bits */ - gen_or(b0, b1); - b0 = gen_proto(ISIS_L2_LSP, Q_ISIS, Q_DEFAULT); - gen_or(b0, b1); - b0 = gen_proto(ISIS_L2_CSNP, Q_ISIS, Q_DEFAULT); - gen_or(b0, b1); - b0 = gen_proto(ISIS_L2_PSNP, Q_ISIS, Q_DEFAULT); - gen_or(b0, b1); - break; - - case Q_ISIS_IIH: /* all IS-IS Hello PDU-Types */ - b0 = gen_proto(ISIS_L1_LAN_IIH, Q_ISIS, Q_DEFAULT); - b1 = gen_proto(ISIS_L2_LAN_IIH, Q_ISIS, Q_DEFAULT); - gen_or(b0, b1); - b0 = gen_proto(ISIS_PTP_IIH, Q_ISIS, Q_DEFAULT); - gen_or(b0, b1); - break; - - case Q_ISIS_LSP: - b0 = gen_proto(ISIS_L1_LSP, Q_ISIS, Q_DEFAULT); - b1 = gen_proto(ISIS_L2_LSP, Q_ISIS, Q_DEFAULT); - gen_or(b0, b1); - break; - - case Q_ISIS_SNP: - b0 = gen_proto(ISIS_L1_CSNP, Q_ISIS, Q_DEFAULT); - b1 = gen_proto(ISIS_L2_CSNP, Q_ISIS, Q_DEFAULT); - gen_or(b0, b1); - b0 = gen_proto(ISIS_L1_PSNP, Q_ISIS, Q_DEFAULT); - gen_or(b0, b1); - b0 = gen_proto(ISIS_L2_PSNP, Q_ISIS, Q_DEFAULT); - gen_or(b0, b1); - break; - - case Q_ISIS_CSNP: - b0 = gen_proto(ISIS_L1_CSNP, Q_ISIS, Q_DEFAULT); - b1 = gen_proto(ISIS_L2_CSNP, Q_ISIS, Q_DEFAULT); - gen_or(b0, b1); - break; - - case Q_ISIS_PSNP: - b0 = gen_proto(ISIS_L1_PSNP, Q_ISIS, Q_DEFAULT); - b1 = gen_proto(ISIS_L2_PSNP, Q_ISIS, Q_DEFAULT); - gen_or(b0, b1); - break; - - case Q_CLNP: - b1 = gen_proto(ISO8473_CLNP, Q_ISO, Q_DEFAULT); - break; - - case Q_STP: - b1 = gen_linktype(LLCSAP_8021D); - break; - - case Q_IPX: - b1 = gen_linktype(LLCSAP_IPX); - break; - - case Q_NETBEUI: - b1 = gen_linktype(LLCSAP_NETBEUI); - break; - - case Q_RADIO: - bpf_error("'radio' is not a valid protocol type"); - - default: - abort(); - } - return b1; -} - -static struct block * -gen_ipfrag() -{ - struct slist *s; - struct block *b; - - /* not ip frag */ - s = gen_load_a(OR_NET, 6, BPF_H); - b = new_block(JMP(BPF_JSET)); - b->s.k = 0x1fff; - b->stmts = s; - gen_not(b); - - return b; -} - -/* - * Generate a comparison to a port value in the transport-layer header - * at the specified offset from the beginning of that header. - * - * XXX - this handles a variable-length prefix preceding the link-layer - * header, such as the radiotap or AVS radio prefix, but doesn't handle - * variable-length link-layer headers (such as Token Ring or 802.11 - * headers). - */ -static struct block * -gen_portatom(off, v) - int off; - bpf_int32 v; -{ - return gen_cmp(OR_TRAN_IPV4, off, BPF_H, v); -} - -#ifdef INET6 -static struct block * -gen_portatom6(off, v) - int off; - bpf_int32 v; -{ - return gen_cmp(OR_TRAN_IPV6, off, BPF_H, v); -} -#endif/*INET6*/ - -struct block * -gen_portop(port, proto, dir) - int port, proto, dir; -{ - struct block *b0, *b1, *tmp; - - /* ip proto 'proto' */ - tmp = gen_cmp(OR_NET, 9, BPF_B, (bpf_int32)proto); - b0 = gen_ipfrag(); - gen_and(tmp, b0); - - switch (dir) { - case Q_SRC: - b1 = gen_portatom(0, (bpf_int32)port); - break; - - case Q_DST: - b1 = gen_portatom(2, (bpf_int32)port); - break; - - case Q_OR: - case Q_DEFAULT: - tmp = gen_portatom(0, (bpf_int32)port); - b1 = gen_portatom(2, (bpf_int32)port); - gen_or(tmp, b1); - break; - - case Q_AND: - tmp = gen_portatom(0, (bpf_int32)port); - b1 = gen_portatom(2, (bpf_int32)port); - gen_and(tmp, b1); - break; - - default: - abort(); - } - gen_and(b0, b1); - - return b1; -} - -static struct block * -gen_port(port, ip_proto, dir) - int port; - int ip_proto; - int dir; -{ - struct block *b0, *b1, *tmp; - - /* - * ether proto ip - * - * For FDDI, RFC 1188 says that SNAP encapsulation is used, - * not LLC encapsulation with LLCSAP_IP. - * - * For IEEE 802 networks - which includes 802.5 token ring - * (which is what DLT_IEEE802 means) and 802.11 - RFC 1042 - * says that SNAP encapsulation is used, not LLC encapsulation - * with LLCSAP_IP. - * - * For LLC-encapsulated ATM/"Classical IP", RFC 1483 and - * RFC 2225 say that SNAP encapsulation is used, not LLC - * encapsulation with LLCSAP_IP. - * - * So we always check for ETHERTYPE_IP. - */ - b0 = gen_linktype(ETHERTYPE_IP); - - switch (ip_proto) { - case IPPROTO_UDP: - case IPPROTO_TCP: - case IPPROTO_SCTP: - b1 = gen_portop(port, ip_proto, dir); - break; - - case PROTO_UNDEF: - tmp = gen_portop(port, IPPROTO_TCP, dir); - b1 = gen_portop(port, IPPROTO_UDP, dir); - gen_or(tmp, b1); - tmp = gen_portop(port, IPPROTO_SCTP, dir); - gen_or(tmp, b1); - break; - - default: - abort(); - } - gen_and(b0, b1); - return b1; -} - -#ifdef INET6 -struct block * -gen_portop6(port, proto, dir) - int port, proto, dir; -{ - struct block *b0, *b1, *tmp; - - /* ip6 proto 'proto' */ - b0 = gen_cmp(OR_NET, 6, BPF_B, (bpf_int32)proto); - - switch (dir) { - case Q_SRC: - b1 = gen_portatom6(0, (bpf_int32)port); - break; - - case Q_DST: - b1 = gen_portatom6(2, (bpf_int32)port); - break; - - case Q_OR: - case Q_DEFAULT: - tmp = gen_portatom6(0, (bpf_int32)port); - b1 = gen_portatom6(2, (bpf_int32)port); - gen_or(tmp, b1); - break; - - case Q_AND: - tmp = gen_portatom6(0, (bpf_int32)port); - b1 = gen_portatom6(2, (bpf_int32)port); - gen_and(tmp, b1); - break; - - default: - abort(); - } - gen_and(b0, b1); - - return b1; -} - -static struct block * -gen_port6(port, ip_proto, dir) - int port; - int ip_proto; - int dir; -{ - struct block *b0, *b1, *tmp; - - /* link proto ip6 */ - b0 = gen_linktype(ETHERTYPE_IPV6); - - switch (ip_proto) { - case IPPROTO_UDP: - case IPPROTO_TCP: - case IPPROTO_SCTP: - b1 = gen_portop6(port, ip_proto, dir); - break; - - case PROTO_UNDEF: - tmp = gen_portop6(port, IPPROTO_TCP, dir); - b1 = gen_portop6(port, IPPROTO_UDP, dir); - gen_or(tmp, b1); - tmp = gen_portop6(port, IPPROTO_SCTP, dir); - gen_or(tmp, b1); - break; - - default: - abort(); - } - gen_and(b0, b1); - return b1; -} -#endif /* INET6 */ - -/* gen_portrange code */ -static struct block * -gen_portrangeatom(off, v1, v2) - int off; - bpf_int32 v1, v2; -{ - struct block *b1, *b2; - - if (v1 > v2) { - /* - * Reverse the order of the ports, so v1 is the lower one. - */ - bpf_int32 vtemp; - - vtemp = v1; - v1 = v2; - v2 = vtemp; - } - - b1 = gen_cmp_ge(OR_TRAN_IPV4, off, BPF_H, v1); - b2 = gen_cmp_le(OR_TRAN_IPV4, off, BPF_H, v2); - - gen_and(b1, b2); - - return b2; -} - -struct block * -gen_portrangeop(port1, port2, proto, dir) - int port1, port2; - int proto; - int dir; -{ - struct block *b0, *b1, *tmp; - - /* ip proto 'proto' */ - tmp = gen_cmp(OR_NET, 9, BPF_B, (bpf_int32)proto); - b0 = gen_ipfrag(); - gen_and(tmp, b0); - - switch (dir) { - case Q_SRC: - b1 = gen_portrangeatom(0, (bpf_int32)port1, (bpf_int32)port2); - break; - - case Q_DST: - b1 = gen_portrangeatom(2, (bpf_int32)port1, (bpf_int32)port2); - break; - - case Q_OR: - case Q_DEFAULT: - tmp = gen_portrangeatom(0, (bpf_int32)port1, (bpf_int32)port2); - b1 = gen_portrangeatom(2, (bpf_int32)port1, (bpf_int32)port2); - gen_or(tmp, b1); - break; - - case Q_AND: - tmp = gen_portrangeatom(0, (bpf_int32)port1, (bpf_int32)port2); - b1 = gen_portrangeatom(2, (bpf_int32)port1, (bpf_int32)port2); - gen_and(tmp, b1); - break; - - default: - abort(); - } - gen_and(b0, b1); - - return b1; -} - -static struct block * -gen_portrange(port1, port2, ip_proto, dir) - int port1, port2; - int ip_proto; - int dir; -{ - struct block *b0, *b1, *tmp; - - /* link proto ip */ - b0 = gen_linktype(ETHERTYPE_IP); - - switch (ip_proto) { - case IPPROTO_UDP: - case IPPROTO_TCP: - case IPPROTO_SCTP: - b1 = gen_portrangeop(port1, port2, ip_proto, dir); - break; - - case PROTO_UNDEF: - tmp = gen_portrangeop(port1, port2, IPPROTO_TCP, dir); - b1 = gen_portrangeop(port1, port2, IPPROTO_UDP, dir); - gen_or(tmp, b1); - tmp = gen_portrangeop(port1, port2, IPPROTO_SCTP, dir); - gen_or(tmp, b1); - break; - - default: - abort(); - } - gen_and(b0, b1); - return b1; -} - -#ifdef INET6 -static struct block * -gen_portrangeatom6(off, v1, v2) - int off; - bpf_int32 v1, v2; -{ - struct block *b1, *b2; - - if (v1 > v2) { - /* - * Reverse the order of the ports, so v1 is the lower one. - */ - bpf_int32 vtemp; - - vtemp = v1; - v1 = v2; - v2 = vtemp; - } - - b1 = gen_cmp_ge(OR_TRAN_IPV6, off, BPF_H, v1); - b2 = gen_cmp_le(OR_TRAN_IPV6, off, BPF_H, v2); - - gen_and(b1, b2); - - return b2; -} - -struct block * -gen_portrangeop6(port1, port2, proto, dir) - int port1, port2; - int proto; - int dir; -{ - struct block *b0, *b1, *tmp; - - /* ip6 proto 'proto' */ - b0 = gen_cmp(OR_NET, 6, BPF_B, (bpf_int32)proto); - - switch (dir) { - case Q_SRC: - b1 = gen_portrangeatom6(0, (bpf_int32)port1, (bpf_int32)port2); - break; - - case Q_DST: - b1 = gen_portrangeatom6(2, (bpf_int32)port1, (bpf_int32)port2); - break; - - case Q_OR: - case Q_DEFAULT: - tmp = gen_portrangeatom6(0, (bpf_int32)port1, (bpf_int32)port2); - b1 = gen_portrangeatom6(2, (bpf_int32)port1, (bpf_int32)port2); - gen_or(tmp, b1); - break; - - case Q_AND: - tmp = gen_portrangeatom6(0, (bpf_int32)port1, (bpf_int32)port2); - b1 = gen_portrangeatom6(2, (bpf_int32)port1, (bpf_int32)port2); - gen_and(tmp, b1); - break; - - default: - abort(); - } - gen_and(b0, b1); - - return b1; -} - -static struct block * -gen_portrange6(port1, port2, ip_proto, dir) - int port1, port2; - int ip_proto; - int dir; -{ - struct block *b0, *b1, *tmp; - - /* link proto ip6 */ - b0 = gen_linktype(ETHERTYPE_IPV6); - - switch (ip_proto) { - case IPPROTO_UDP: - case IPPROTO_TCP: - case IPPROTO_SCTP: - b1 = gen_portrangeop6(port1, port2, ip_proto, dir); - break; - - case PROTO_UNDEF: - tmp = gen_portrangeop6(port1, port2, IPPROTO_TCP, dir); - b1 = gen_portrangeop6(port1, port2, IPPROTO_UDP, dir); - gen_or(tmp, b1); - tmp = gen_portrangeop6(port1, port2, IPPROTO_SCTP, dir); - gen_or(tmp, b1); - break; - - default: - abort(); - } - gen_and(b0, b1); - return b1; -} -#endif /* INET6 */ - -static int -lookup_proto(name, proto) - register const char *name; - register int proto; -{ - register int v; - - switch (proto) { - - case Q_DEFAULT: - case Q_IP: - case Q_IPV6: - v = pcap_nametoproto(name); - if (v == PROTO_UNDEF) - bpf_error("unknown ip proto '%s'", name); - break; - - case Q_LINK: - /* XXX should look up h/w protocol type based on linktype */ - v = pcap_nametoeproto(name); - if (v == PROTO_UNDEF) { - v = pcap_nametollc(name); - if (v == PROTO_UNDEF) - bpf_error("unknown ether proto '%s'", name); - } - break; - - case Q_ISO: - if (strcmp(name, "esis") == 0) - v = ISO9542_ESIS; - else if (strcmp(name, "isis") == 0) - v = ISO10589_ISIS; - else if (strcmp(name, "clnp") == 0) - v = ISO8473_CLNP; - else - bpf_error("unknown osi proto '%s'", name); - break; - - default: - v = PROTO_UNDEF; - break; - } - return v; -} - -#if 0 -struct stmt * -gen_joinsp(s, n) - struct stmt **s; - int n; -{ - return NULL; -} -#endif - -static struct block * -gen_protochain(v, proto, dir) - int v; - int proto; - int dir; -{ -#ifdef NO_PROTOCHAIN - return gen_proto(v, proto, dir); -#else - struct block *b0, *b; - struct slist *s[100]; - int fix2, fix3, fix4, fix5; - int ahcheck, again, end; - int i, max; - int reg2 = alloc_reg(); - - memset(s, 0, sizeof(s)); - fix2 = fix3 = fix4 = fix5 = 0; - - switch (proto) { - case Q_IP: - case Q_IPV6: - break; - case Q_DEFAULT: - b0 = gen_protochain(v, Q_IP, dir); - b = gen_protochain(v, Q_IPV6, dir); - gen_or(b0, b); - return b; - default: - bpf_error("bad protocol applied for 'protochain'"); - /*NOTREACHED*/ - } - - /* - * We don't handle variable-length radiotap here headers yet. - * We might want to add BPF instructions to do the protochain - * work, to simplify that and, on platforms that have a BPF - * interpreter with the new instructions, let the filtering - * be done in the kernel. (We already require a modified BPF - * engine to do the protochain stuff, to support backward - * branches, and backward branch support is unlikely to appear - * in kernel BPF engines.) - */ - if (linktype == DLT_IEEE802_11_RADIO) - bpf_error("'protochain' not supported with radiotap headers"); - - if (linktype == DLT_PPI) - bpf_error("'protochain' not supported with PPI headers"); - - no_optimize = 1; /*this code is not compatible with optimzer yet */ - - /* - * s[0] is a dummy entry to protect other BPF insn from damage - * by s[fix] = foo with uninitialized variable "fix". It is somewhat - * hard to find interdependency made by jump table fixup. - */ - i = 0; - s[i] = new_stmt(0); /*dummy*/ - i++; - - switch (proto) { - case Q_IP: - b0 = gen_linktype(ETHERTYPE_IP); - - /* A = ip->ip_p */ - s[i] = new_stmt(BPF_LD|BPF_ABS|BPF_B); - s[i]->s.k = off_ll + off_nl + 9; - i++; - /* X = ip->ip_hl << 2 */ - s[i] = new_stmt(BPF_LDX|BPF_MSH|BPF_B); - s[i]->s.k = off_ll + off_nl; - i++; - break; -#ifdef INET6 - case Q_IPV6: - b0 = gen_linktype(ETHERTYPE_IPV6); - - /* A = ip6->ip_nxt */ - s[i] = new_stmt(BPF_LD|BPF_ABS|BPF_B); - s[i]->s.k = off_ll + off_nl + 6; - i++; - /* X = sizeof(struct ip6_hdr) */ - s[i] = new_stmt(BPF_LDX|BPF_IMM); - s[i]->s.k = 40; - i++; - break; -#endif - default: - bpf_error("unsupported proto to gen_protochain"); - /*NOTREACHED*/ - } - - /* again: if (A == v) goto end; else fall through; */ - again = i; - s[i] = new_stmt(BPF_JMP|BPF_JEQ|BPF_K); - s[i]->s.k = v; - s[i]->s.jt = NULL; /*later*/ - s[i]->s.jf = NULL; /*update in next stmt*/ - fix5 = i; - i++; - -#ifndef IPPROTO_NONE -#define IPPROTO_NONE 59 -#endif - /* if (A == IPPROTO_NONE) goto end */ - s[i] = new_stmt(BPF_JMP|BPF_JEQ|BPF_K); - s[i]->s.jt = NULL; /*later*/ - s[i]->s.jf = NULL; /*update in next stmt*/ - s[i]->s.k = IPPROTO_NONE; - s[fix5]->s.jf = s[i]; - fix2 = i; - i++; - -#ifdef INET6 - if (proto == Q_IPV6) { - int v6start, v6end, v6advance, j; - - v6start = i; - /* if (A == IPPROTO_HOPOPTS) goto v6advance */ - s[i] = new_stmt(BPF_JMP|BPF_JEQ|BPF_K); - s[i]->s.jt = NULL; /*later*/ - s[i]->s.jf = NULL; /*update in next stmt*/ - s[i]->s.k = IPPROTO_HOPOPTS; - s[fix2]->s.jf = s[i]; - i++; - /* if (A == IPPROTO_DSTOPTS) goto v6advance */ - s[i - 1]->s.jf = s[i] = new_stmt(BPF_JMP|BPF_JEQ|BPF_K); - s[i]->s.jt = NULL; /*later*/ - s[i]->s.jf = NULL; /*update in next stmt*/ - s[i]->s.k = IPPROTO_DSTOPTS; - i++; - /* if (A == IPPROTO_ROUTING) goto v6advance */ - s[i - 1]->s.jf = s[i] = new_stmt(BPF_JMP|BPF_JEQ|BPF_K); - s[i]->s.jt = NULL; /*later*/ - s[i]->s.jf = NULL; /*update in next stmt*/ - s[i]->s.k = IPPROTO_ROUTING; - i++; - /* if (A == IPPROTO_FRAGMENT) goto v6advance; else goto ahcheck; */ - s[i - 1]->s.jf = s[i] = new_stmt(BPF_JMP|BPF_JEQ|BPF_K); - s[i]->s.jt = NULL; /*later*/ - s[i]->s.jf = NULL; /*later*/ - s[i]->s.k = IPPROTO_FRAGMENT; - fix3 = i; - v6end = i; - i++; - - /* v6advance: */ - v6advance = i; - - /* - * in short, - * A = P[X]; - * X = X + (P[X + 1] + 1) * 8; - */ - /* A = X */ - s[i] = new_stmt(BPF_MISC|BPF_TXA); - i++; - /* A = P[X + packet head] */ - s[i] = new_stmt(BPF_LD|BPF_IND|BPF_B); - s[i]->s.k = off_ll + off_nl; - i++; - /* MEM[reg2] = A */ - s[i] = new_stmt(BPF_ST); - s[i]->s.k = reg2; - i++; - /* A = X */ - s[i] = new_stmt(BPF_MISC|BPF_TXA); - i++; - /* A += 1 */ - s[i] = new_stmt(BPF_ALU|BPF_ADD|BPF_K); - s[i]->s.k = 1; - i++; - /* X = A */ - s[i] = new_stmt(BPF_MISC|BPF_TAX); - i++; - /* A = P[X + packet head]; */ - s[i] = new_stmt(BPF_LD|BPF_IND|BPF_B); - s[i]->s.k = off_ll + off_nl; - i++; - /* A += 1 */ - s[i] = new_stmt(BPF_ALU|BPF_ADD|BPF_K); - s[i]->s.k = 1; - i++; - /* A *= 8 */ - s[i] = new_stmt(BPF_ALU|BPF_MUL|BPF_K); - s[i]->s.k = 8; - i++; - /* X = A; */ - s[i] = new_stmt(BPF_MISC|BPF_TAX); - i++; - /* A = MEM[reg2] */ - s[i] = new_stmt(BPF_LD|BPF_MEM); - s[i]->s.k = reg2; - i++; - - /* goto again; (must use BPF_JA for backward jump) */ - s[i] = new_stmt(BPF_JMP|BPF_JA); - s[i]->s.k = again - i - 1; - s[i - 1]->s.jf = s[i]; - i++; - - /* fixup */ - for (j = v6start; j <= v6end; j++) - s[j]->s.jt = s[v6advance]; - } else -#endif - { - /* nop */ - s[i] = new_stmt(BPF_ALU|BPF_ADD|BPF_K); - s[i]->s.k = 0; - s[fix2]->s.jf = s[i]; - i++; - } - - /* ahcheck: */ - ahcheck = i; - /* if (A == IPPROTO_AH) then fall through; else goto end; */ - s[i] = new_stmt(BPF_JMP|BPF_JEQ|BPF_K); - s[i]->s.jt = NULL; /*later*/ - s[i]->s.jf = NULL; /*later*/ - s[i]->s.k = IPPROTO_AH; - if (fix3) - s[fix3]->s.jf = s[ahcheck]; - fix4 = i; - i++; - - /* - * in short, - * A = P[X]; - * X = X + (P[X + 1] + 2) * 4; - */ - /* A = X */ - s[i - 1]->s.jt = s[i] = new_stmt(BPF_MISC|BPF_TXA); - i++; - /* A = P[X + packet head]; */ - s[i] = new_stmt(BPF_LD|BPF_IND|BPF_B); - s[i]->s.k = off_ll + off_nl; - i++; - /* MEM[reg2] = A */ - s[i] = new_stmt(BPF_ST); - s[i]->s.k = reg2; - i++; - /* A = X */ - s[i - 1]->s.jt = s[i] = new_stmt(BPF_MISC|BPF_TXA); - i++; - /* A += 1 */ - s[i] = new_stmt(BPF_ALU|BPF_ADD|BPF_K); - s[i]->s.k = 1; - i++; - /* X = A */ - s[i] = new_stmt(BPF_MISC|BPF_TAX); - i++; - /* A = P[X + packet head] */ - s[i] = new_stmt(BPF_LD|BPF_IND|BPF_B); - s[i]->s.k = off_ll + off_nl; - i++; - /* A += 2 */ - s[i] = new_stmt(BPF_ALU|BPF_ADD|BPF_K); - s[i]->s.k = 2; - i++; - /* A *= 4 */ - s[i] = new_stmt(BPF_ALU|BPF_MUL|BPF_K); - s[i]->s.k = 4; - i++; - /* X = A; */ - s[i] = new_stmt(BPF_MISC|BPF_TAX); - i++; - /* A = MEM[reg2] */ - s[i] = new_stmt(BPF_LD|BPF_MEM); - s[i]->s.k = reg2; - i++; - - /* goto again; (must use BPF_JA for backward jump) */ - s[i] = new_stmt(BPF_JMP|BPF_JA); - s[i]->s.k = again - i - 1; - i++; - - /* end: nop */ - end = i; - s[i] = new_stmt(BPF_ALU|BPF_ADD|BPF_K); - s[i]->s.k = 0; - s[fix2]->s.jt = s[end]; - s[fix4]->s.jf = s[end]; - s[fix5]->s.jt = s[end]; - i++; - - /* - * make slist chain - */ - max = i; - for (i = 0; i < max - 1; i++) - s[i]->next = s[i + 1]; - s[max - 1]->next = NULL; - - /* - * emit final check - */ - b = new_block(JMP(BPF_JEQ)); - b->stmts = s[1]; /*remember, s[0] is dummy*/ - b->s.k = v; - - free_reg(reg2); - - gen_and(b0, b); - return b; -#endif -} - - -/* - * Generate code that checks whether the packet is a packet for protocol - * <proto> and whether the type field in that protocol's header has - * the value <v>, e.g. if <proto> is Q_IP, it checks whether it's an - * IP packet and checks the protocol number in the IP header against <v>. - * - * If <proto> is Q_DEFAULT, i.e. just "proto" was specified, it checks - * against Q_IP and Q_IPV6. - */ -static struct block * -gen_proto(v, proto, dir) - int v; - int proto; - int dir; -{ - struct block *b0, *b1; - - if (dir != Q_DEFAULT) - bpf_error("direction applied to 'proto'"); - - switch (proto) { - case Q_DEFAULT: -#ifdef INET6 - b0 = gen_proto(v, Q_IP, dir); - b1 = gen_proto(v, Q_IPV6, dir); - gen_or(b0, b1); - return b1; -#else - /*FALLTHROUGH*/ -#endif - case Q_IP: - /* - * For FDDI, RFC 1188 says that SNAP encapsulation is used, - * not LLC encapsulation with LLCSAP_IP. - * - * For IEEE 802 networks - which includes 802.5 token ring - * (which is what DLT_IEEE802 means) and 802.11 - RFC 1042 - * says that SNAP encapsulation is used, not LLC encapsulation - * with LLCSAP_IP. - * - * For LLC-encapsulated ATM/"Classical IP", RFC 1483 and - * RFC 2225 say that SNAP encapsulation is used, not LLC - * encapsulation with LLCSAP_IP. - * - * So we always check for ETHERTYPE_IP. - */ - b0 = gen_linktype(ETHERTYPE_IP); -#ifndef CHASE_CHAIN - b1 = gen_cmp(OR_NET, 9, BPF_B, (bpf_int32)v); -#else - b1 = gen_protochain(v, Q_IP); -#endif - gen_and(b0, b1); - return b1; - - case Q_ISO: - switch (linktype) { - - case DLT_FRELAY: - /* - * Frame Relay packets typically have an OSI - * NLPID at the beginning; "gen_linktype(LLCSAP_ISONS)" - * generates code to check for all the OSI - * NLPIDs, so calling it and then adding a check - * for the particular NLPID for which we're - * looking is bogus, as we can just check for - * the NLPID. - * - * What we check for is the NLPID and a frame - * control field value of UI, i.e. 0x03 followed - * by the NLPID. - * - * XXX - assumes a 2-byte Frame Relay header with - * DLCI and flags. What if the address is longer? - * - * XXX - what about SNAP-encapsulated frames? - */ - return gen_cmp(OR_LINK, 2, BPF_H, (0x03<<8) | v); - /*NOTREACHED*/ - break; - - case DLT_C_HDLC: - /* - * Cisco uses an Ethertype lookalike - for OSI, - * it's 0xfefe. - */ - b0 = gen_linktype(LLCSAP_ISONS<<8 | LLCSAP_ISONS); - /* OSI in C-HDLC is stuffed with a fudge byte */ - b1 = gen_cmp(OR_NET_NOSNAP, 1, BPF_B, (long)v); - gen_and(b0, b1); - return b1; - - default: - b0 = gen_linktype(LLCSAP_ISONS); - b1 = gen_cmp(OR_NET_NOSNAP, 0, BPF_B, (long)v); - gen_and(b0, b1); - return b1; - } - - case Q_ISIS: - b0 = gen_proto(ISO10589_ISIS, Q_ISO, Q_DEFAULT); - /* - * 4 is the offset of the PDU type relative to the IS-IS - * header. - */ - b1 = gen_cmp(OR_NET_NOSNAP, 4, BPF_B, (long)v); - gen_and(b0, b1); - return b1; - - case Q_ARP: - bpf_error("arp does not encapsulate another protocol"); - /* NOTREACHED */ - - case Q_RARP: - bpf_error("rarp does not encapsulate another protocol"); - /* NOTREACHED */ - - case Q_ATALK: - bpf_error("atalk encapsulation is not specifiable"); - /* NOTREACHED */ - - case Q_DECNET: - bpf_error("decnet encapsulation is not specifiable"); - /* NOTREACHED */ - - case Q_SCA: - bpf_error("sca does not encapsulate another protocol"); - /* NOTREACHED */ - - case Q_LAT: - bpf_error("lat does not encapsulate another protocol"); - /* NOTREACHED */ - - case Q_MOPRC: - bpf_error("moprc does not encapsulate another protocol"); - /* NOTREACHED */ - - case Q_MOPDL: - bpf_error("mopdl does not encapsulate another protocol"); - /* NOTREACHED */ - - case Q_LINK: - return gen_linktype(v); - - case Q_UDP: - bpf_error("'udp proto' is bogus"); - /* NOTREACHED */ - - case Q_TCP: - bpf_error("'tcp proto' is bogus"); - /* NOTREACHED */ - - case Q_SCTP: - bpf_error("'sctp proto' is bogus"); - /* NOTREACHED */ - - case Q_ICMP: - bpf_error("'icmp proto' is bogus"); - /* NOTREACHED */ - - case Q_IGMP: - bpf_error("'igmp proto' is bogus"); - /* NOTREACHED */ - - case Q_IGRP: - bpf_error("'igrp proto' is bogus"); - /* NOTREACHED */ - - case Q_PIM: - bpf_error("'pim proto' is bogus"); - /* NOTREACHED */ - - case Q_VRRP: - bpf_error("'vrrp proto' is bogus"); - /* NOTREACHED */ - -#ifdef INET6 - case Q_IPV6: - b0 = gen_linktype(ETHERTYPE_IPV6); -#ifndef CHASE_CHAIN - b1 = gen_cmp(OR_NET, 6, BPF_B, (bpf_int32)v); -#else - b1 = gen_protochain(v, Q_IPV6); -#endif - gen_and(b0, b1); - return b1; - - case Q_ICMPV6: - bpf_error("'icmp6 proto' is bogus"); -#endif /* INET6 */ - - case Q_AH: - bpf_error("'ah proto' is bogus"); - - case Q_ESP: - bpf_error("'ah proto' is bogus"); - - case Q_STP: - bpf_error("'stp proto' is bogus"); - - case Q_IPX: - bpf_error("'ipx proto' is bogus"); - - case Q_NETBEUI: - bpf_error("'netbeui proto' is bogus"); - - case Q_RADIO: - bpf_error("'radio proto' is bogus"); - - default: - abort(); - /* NOTREACHED */ - } - /* NOTREACHED */ -} - -struct block * -gen_scode(name, q) - register const char *name; - struct qual q; -{ - int proto = q.proto; - int dir = q.dir; - int tproto; - u_char *eaddr; - bpf_u_int32 mask, addr; -#ifndef INET6 - bpf_u_int32 **alist; -#else - int tproto6; - struct sockaddr_in *sin4; - struct sockaddr_in6 *sin6; - struct addrinfo *res, *res0; - struct in6_addr mask128; -#endif /*INET6*/ - struct block *b, *tmp; - int port, real_proto; - int port1, port2; - - switch (q.addr) { - - case Q_NET: - addr = pcap_nametonetaddr(name); - if (addr == 0) - bpf_error("unknown network '%s'", name); - /* Left justify network addr and calculate its network mask */ - mask = 0xffffffff; - while (addr && (addr & 0xff000000) == 0) { - addr <<= 8; - mask <<= 8; - } - return gen_host(addr, mask, proto, dir, q.addr); - - case Q_DEFAULT: - case Q_HOST: - if (proto == Q_LINK) { - switch (linktype) { - - case DLT_EN10MB: - eaddr = pcap_ether_hostton(name); - if (eaddr == NULL) - bpf_error( - "unknown ether host '%s'", name); - b = gen_ehostop(eaddr, dir); - free(eaddr); - return b; - - case DLT_FDDI: - eaddr = pcap_ether_hostton(name); - if (eaddr == NULL) - bpf_error( - "unknown FDDI host '%s'", name); - b = gen_fhostop(eaddr, dir); - free(eaddr); - return b; - - case DLT_IEEE802: - eaddr = pcap_ether_hostton(name); - if (eaddr == NULL) - bpf_error( - "unknown token ring host '%s'", name); - b = gen_thostop(eaddr, dir); - free(eaddr); - return b; - - case DLT_IEEE802_11: - case DLT_IEEE802_11_RADIO_AVS: - case DLT_IEEE802_11_RADIO: - case DLT_PRISM_HEADER: - case DLT_PPI: - eaddr = pcap_ether_hostton(name); - if (eaddr == NULL) - bpf_error( - "unknown 802.11 host '%s'", name); - b = gen_wlanhostop(eaddr, dir); - free(eaddr); - return b; - - case DLT_IP_OVER_FC: - eaddr = pcap_ether_hostton(name); - if (eaddr == NULL) - bpf_error( - "unknown Fibre Channel host '%s'", name); - b = gen_ipfchostop(eaddr, dir); - free(eaddr); - return b; - - case DLT_SUNATM: - if (!is_lane) - break; - - /* - * Check that the packet doesn't begin - * with an LE Control marker. (We've - * already generated a test for LANE.) - */ - tmp = gen_cmp(OR_LINK, SUNATM_PKT_BEGIN_POS, - BPF_H, 0xFF00); - gen_not(tmp); - - eaddr = pcap_ether_hostton(name); - if (eaddr == NULL) - bpf_error( - "unknown ether host '%s'", name); - b = gen_ehostop(eaddr, dir); - gen_and(tmp, b); - free(eaddr); - return b; - } - - bpf_error("only ethernet/FDDI/token ring/802.11/ATM LANE/Fibre Channel supports link-level host name"); - } else if (proto == Q_DECNET) { - unsigned short dn_addr = __pcap_nametodnaddr(name); - /* - * I don't think DECNET hosts can be multihomed, so - * there is no need to build up a list of addresses - */ - return (gen_host(dn_addr, 0, proto, dir, q.addr)); - } else { -#ifndef INET6 - alist = pcap_nametoaddr(name); - if (alist == NULL || *alist == NULL) - bpf_error("unknown host '%s'", name); - tproto = proto; - if (off_linktype == (u_int)-1 && tproto == Q_DEFAULT) - tproto = Q_IP; - b = gen_host(**alist++, 0xffffffff, tproto, dir, q.addr); - while (*alist) { - tmp = gen_host(**alist++, 0xffffffff, - tproto, dir, q.addr); - gen_or(b, tmp); - b = tmp; - } - return b; -#else - memset(&mask128, 0xff, sizeof(mask128)); - res0 = res = pcap_nametoaddrinfo(name); - if (res == NULL) - bpf_error("unknown host '%s'", name); - b = tmp = NULL; - tproto = tproto6 = proto; - if (off_linktype == -1 && tproto == Q_DEFAULT) { - tproto = Q_IP; - tproto6 = Q_IPV6; - } - for (res = res0; res; res = res->ai_next) { - switch (res->ai_family) { - case AF_INET: - if (tproto == Q_IPV6) - continue; - - sin4 = (struct sockaddr_in *) - res->ai_addr; - tmp = gen_host(ntohl(sin4->sin_addr.s_addr), - 0xffffffff, tproto, dir, q.addr); - break; - case AF_INET6: - if (tproto6 == Q_IP) - continue; - - sin6 = (struct sockaddr_in6 *) - res->ai_addr; - tmp = gen_host6(&sin6->sin6_addr, - &mask128, tproto6, dir, q.addr); - break; - default: - continue; - } - if (b) - gen_or(b, tmp); - b = tmp; - } - freeaddrinfo(res0); - if (b == NULL) { - bpf_error("unknown host '%s'%s", name, - (proto == Q_DEFAULT) - ? "" - : " for specified address family"); - } - return b; -#endif /*INET6*/ - } - - case Q_PORT: - if (proto != Q_DEFAULT && - proto != Q_UDP && proto != Q_TCP && proto != Q_SCTP) - bpf_error("illegal qualifier of 'port'"); - if (pcap_nametoport(name, &port, &real_proto) == 0) - bpf_error("unknown port '%s'", name); - if (proto == Q_UDP) { - if (real_proto == IPPROTO_TCP) - bpf_error("port '%s' is tcp", name); - else if (real_proto == IPPROTO_SCTP) - bpf_error("port '%s' is sctp", name); - else - /* override PROTO_UNDEF */ - real_proto = IPPROTO_UDP; - } - if (proto == Q_TCP) { - if (real_proto == IPPROTO_UDP) - bpf_error("port '%s' is udp", name); - - else if (real_proto == IPPROTO_SCTP) - bpf_error("port '%s' is sctp", name); - else - /* override PROTO_UNDEF */ - real_proto = IPPROTO_TCP; - } - if (proto == Q_SCTP) { - if (real_proto == IPPROTO_UDP) - bpf_error("port '%s' is udp", name); - - else if (real_proto == IPPROTO_TCP) - bpf_error("port '%s' is tcp", name); - else - /* override PROTO_UNDEF */ - real_proto = IPPROTO_SCTP; - } -#ifndef INET6 - return gen_port(port, real_proto, dir); -#else - b = gen_port(port, real_proto, dir); - gen_or(gen_port6(port, real_proto, dir), b); - return b; -#endif /* INET6 */ - - case Q_PORTRANGE: - if (proto != Q_DEFAULT && - proto != Q_UDP && proto != Q_TCP && proto != Q_SCTP) - bpf_error("illegal qualifier of 'portrange'"); - if (pcap_nametoportrange(name, &port1, &port2, &real_proto) == 0) - bpf_error("unknown port in range '%s'", name); - if (proto == Q_UDP) { - if (real_proto == IPPROTO_TCP) - bpf_error("port in range '%s' is tcp", name); - else if (real_proto == IPPROTO_SCTP) - bpf_error("port in range '%s' is sctp", name); - else - /* override PROTO_UNDEF */ - real_proto = IPPROTO_UDP; - } - if (proto == Q_TCP) { - if (real_proto == IPPROTO_UDP) - bpf_error("port in range '%s' is udp", name); - else if (real_proto == IPPROTO_SCTP) - bpf_error("port in range '%s' is sctp", name); - else - /* override PROTO_UNDEF */ - real_proto = IPPROTO_TCP; - } - if (proto == Q_SCTP) { - if (real_proto == IPPROTO_UDP) - bpf_error("port in range '%s' is udp", name); - else if (real_proto == IPPROTO_TCP) - bpf_error("port in range '%s' is tcp", name); - else - /* override PROTO_UNDEF */ - real_proto = IPPROTO_SCTP; - } -#ifndef INET6 - return gen_portrange(port1, port2, real_proto, dir); -#else - b = gen_portrange(port1, port2, real_proto, dir); - gen_or(gen_portrange6(port1, port2, real_proto, dir), b); - return b; -#endif /* INET6 */ - - case Q_GATEWAY: -#ifndef INET6 - eaddr = pcap_ether_hostton(name); - if (eaddr == NULL) - bpf_error("unknown ether host: %s", name); - - alist = pcap_nametoaddr(name); - if (alist == NULL || *alist == NULL) - bpf_error("unknown host '%s'", name); - b = gen_gateway(eaddr, alist, proto, dir); - free(eaddr); - return b; -#else - bpf_error("'gateway' not supported in this configuration"); -#endif /*INET6*/ - - case Q_PROTO: - real_proto = lookup_proto(name, proto); - if (real_proto >= 0) - return gen_proto(real_proto, proto, dir); - else - bpf_error("unknown protocol: %s", name); - - case Q_PROTOCHAIN: - real_proto = lookup_proto(name, proto); - if (real_proto >= 0) - return gen_protochain(real_proto, proto, dir); - else - bpf_error("unknown protocol: %s", name); - - - case Q_UNDEF: - syntax(); - /* NOTREACHED */ - } - abort(); - /* NOTREACHED */ -} - -struct block * -gen_mcode(s1, s2, masklen, q) - register const char *s1, *s2; - register int masklen; - struct qual q; -{ - register int nlen, mlen; - bpf_u_int32 n, m; - - nlen = __pcap_atoin(s1, &n); - /* Promote short ipaddr */ - n <<= 32 - nlen; - - if (s2 != NULL) { - mlen = __pcap_atoin(s2, &m); - /* Promote short ipaddr */ - m <<= 32 - mlen; - if ((n & ~m) != 0) - bpf_error("non-network bits set in \"%s mask %s\"", - s1, s2); - } else { - /* Convert mask len to mask */ - if (masklen > 32) - bpf_error("mask length must be <= 32"); - if (masklen == 0) { - /* - * X << 32 is not guaranteed by C to be 0; it's - * undefined. - */ - m = 0; - } else - m = 0xffffffff << (32 - masklen); - if ((n & ~m) != 0) - bpf_error("non-network bits set in \"%s/%d\"", - s1, masklen); - } - - switch (q.addr) { - - case Q_NET: - return gen_host(n, m, q.proto, q.dir, q.addr); - - default: - bpf_error("Mask syntax for networks only"); - /* NOTREACHED */ - } - /* NOTREACHED */ - return NULL; -} - -struct block * -gen_ncode(s, v, q) - register const char *s; - bpf_u_int32 v; - struct qual q; -{ - bpf_u_int32 mask; - int proto = q.proto; - int dir = q.dir; - register int vlen; - - if (s == NULL) - vlen = 32; - else if (q.proto == Q_DECNET) - vlen = __pcap_atodn(s, &v); - else - vlen = __pcap_atoin(s, &v); - - switch (q.addr) { - - case Q_DEFAULT: - case Q_HOST: - case Q_NET: - if (proto == Q_DECNET) - return gen_host(v, 0, proto, dir, q.addr); - else if (proto == Q_LINK) { - bpf_error("illegal link layer address"); - } else { - mask = 0xffffffff; - if (s == NULL && q.addr == Q_NET) { - /* Promote short net number */ - while (v && (v & 0xff000000) == 0) { - v <<= 8; - mask <<= 8; - } - } else { - /* Promote short ipaddr */ - v <<= 32 - vlen; - mask <<= 32 - vlen; - } - return gen_host(v, mask, proto, dir, q.addr); - } - - case Q_PORT: - if (proto == Q_UDP) - proto = IPPROTO_UDP; - else if (proto == Q_TCP) - proto = IPPROTO_TCP; - else if (proto == Q_SCTP) - proto = IPPROTO_SCTP; - else if (proto == Q_DEFAULT) - proto = PROTO_UNDEF; - else - bpf_error("illegal qualifier of 'port'"); - -#ifndef INET6 - return gen_port((int)v, proto, dir); -#else - { - struct block *b; - b = gen_port((int)v, proto, dir); - gen_or(gen_port6((int)v, proto, dir), b); - return b; - } -#endif /* INET6 */ - - case Q_PORTRANGE: - if (proto == Q_UDP) - proto = IPPROTO_UDP; - else if (proto == Q_TCP) - proto = IPPROTO_TCP; - else if (proto == Q_SCTP) - proto = IPPROTO_SCTP; - else if (proto == Q_DEFAULT) - proto = PROTO_UNDEF; - else - bpf_error("illegal qualifier of 'portrange'"); - -#ifndef INET6 - return gen_portrange((int)v, (int)v, proto, dir); -#else - { - struct block *b; - b = gen_portrange((int)v, (int)v, proto, dir); - gen_or(gen_portrange6((int)v, (int)v, proto, dir), b); - return b; - } -#endif /* INET6 */ - - case Q_GATEWAY: - bpf_error("'gateway' requires a name"); - /* NOTREACHED */ - - case Q_PROTO: - return gen_proto((int)v, proto, dir); - - case Q_PROTOCHAIN: - return gen_protochain((int)v, proto, dir); - - case Q_UNDEF: - syntax(); - /* NOTREACHED */ - - default: - abort(); - /* NOTREACHED */ - } - /* NOTREACHED */ -} - -#ifdef INET6 -struct block * -gen_mcode6(s1, s2, masklen, q) - register const char *s1, *s2; - register int masklen; - struct qual q; -{ - struct addrinfo *res; - struct in6_addr *addr; - struct in6_addr mask; - struct block *b; - u_int32_t *a, *m; - - if (s2) - bpf_error("no mask %s supported", s2); - - res = pcap_nametoaddrinfo(s1); - if (!res) - bpf_error("invalid ip6 address %s", s1); - if (res->ai_next) - bpf_error("%s resolved to multiple address", s1); - addr = &((struct sockaddr_in6 *)res->ai_addr)->sin6_addr; - - if (sizeof(mask) * 8 < masklen) - bpf_error("mask length must be <= %u", (unsigned int)(sizeof(mask) * 8)); - memset(&mask, 0, sizeof(mask)); - memset(&mask, 0xff, masklen / 8); - if (masklen % 8) { - mask.s6_addr[masklen / 8] = - (0xff << (8 - masklen % 8)) & 0xff; - } - - a = (u_int32_t *)addr; - m = (u_int32_t *)&mask; - if ((a[0] & ~m[0]) || (a[1] & ~m[1]) - || (a[2] & ~m[2]) || (a[3] & ~m[3])) { - bpf_error("non-network bits set in \"%s/%d\"", s1, masklen); - } - - switch (q.addr) { - - case Q_DEFAULT: - case Q_HOST: - if (masklen != 128) - bpf_error("Mask syntax for networks only"); - /* FALLTHROUGH */ - - case Q_NET: - b = gen_host6(addr, &mask, q.proto, q.dir, q.addr); - freeaddrinfo(res); - return b; - - default: - bpf_error("invalid qualifier against IPv6 address"); - /* NOTREACHED */ - } - return NULL; -} -#endif /*INET6*/ - -struct block * -gen_ecode(eaddr, q) - register const u_char *eaddr; - struct qual q; -{ - struct block *b, *tmp; - - if ((q.addr == Q_HOST || q.addr == Q_DEFAULT) && q.proto == Q_LINK) { - switch (linktype) { - case DLT_EN10MB: - return gen_ehostop(eaddr, (int)q.dir); - case DLT_FDDI: - return gen_fhostop(eaddr, (int)q.dir); - case DLT_IEEE802: - return gen_thostop(eaddr, (int)q.dir); - case DLT_IEEE802_11: - case DLT_IEEE802_11_RADIO_AVS: - case DLT_IEEE802_11_RADIO: - case DLT_PRISM_HEADER: - case DLT_PPI: - return gen_wlanhostop(eaddr, (int)q.dir); - case DLT_SUNATM: - if (is_lane) { - /* - * Check that the packet doesn't begin with an - * LE Control marker. (We've already generated - * a test for LANE.) - */ - tmp = gen_cmp(OR_LINK, SUNATM_PKT_BEGIN_POS, BPF_H, - 0xFF00); - gen_not(tmp); - - /* - * Now check the MAC address. - */ - b = gen_ehostop(eaddr, (int)q.dir); - gen_and(tmp, b); - return b; - } - break; - case DLT_IP_OVER_FC: - return gen_ipfchostop(eaddr, (int)q.dir); - default: - bpf_error("ethernet addresses supported only on ethernet/FDDI/token ring/802.11/ATM LANE/Fibre Channel"); - break; - } - } - bpf_error("ethernet address used in non-ether expression"); - /* NOTREACHED */ - return NULL; -} - -void -sappend(s0, s1) - struct slist *s0, *s1; -{ - /* - * This is definitely not the best way to do this, but the - * lists will rarely get long. - */ - while (s0->next) - s0 = s0->next; - s0->next = s1; -} - -static struct slist * -xfer_to_x(a) - struct arth *a; -{ - struct slist *s; - - s = new_stmt(BPF_LDX|BPF_MEM); - s->s.k = a->regno; - return s; -} - -static struct slist * -xfer_to_a(a) - struct arth *a; -{ - struct slist *s; - - s = new_stmt(BPF_LD|BPF_MEM); - s->s.k = a->regno; - return s; -} - -/* - * Modify "index" to use the value stored into its register as an - * offset relative to the beginning of the header for the protocol - * "proto", and allocate a register and put an item "size" bytes long - * (1, 2, or 4) at that offset into that register, making it the register - * for "index". - */ -struct arth * -gen_load(proto, inst, size) - int proto; - struct arth *inst; - int size; -{ - struct slist *s, *tmp; - struct block *b; - int regno = alloc_reg(); - - free_reg(inst->regno); - switch (size) { - - default: - bpf_error("data size must be 1, 2, or 4"); - - case 1: - size = BPF_B; - break; - - case 2: - size = BPF_H; - break; - - case 4: - size = BPF_W; - break; - } - switch (proto) { - default: - bpf_error("unsupported index operation"); - - case Q_RADIO: - /* - * The offset is relative to the beginning of the packet - * data, if we have a radio header. (If we don't, this - * is an error.) - */ - if (linktype != DLT_IEEE802_11_RADIO_AVS && - linktype != DLT_IEEE802_11_RADIO && - linktype != DLT_PRISM_HEADER) - bpf_error("radio information not present in capture"); - - /* - * Load into the X register the offset computed into the - * register specifed by "index". - */ - s = xfer_to_x(inst); - - /* - * Load the item at that offset. - */ - tmp = new_stmt(BPF_LD|BPF_IND|size); - sappend(s, tmp); - sappend(inst->s, s); - break; - - case Q_LINK: - /* - * The offset is relative to the beginning of - * the link-layer header. - * - * XXX - what about ATM LANE? Should the index be - * relative to the beginning of the AAL5 frame, so - * that 0 refers to the beginning of the LE Control - * field, or relative to the beginning of the LAN - * frame, so that 0 refers, for Ethernet LANE, to - * the beginning of the destination address? - */ - s = gen_llprefixlen(); - - /* - * If "s" is non-null, it has code to arrange that the - * X register contains the length of the prefix preceding - * the link-layer header. Add to it the offset computed - * into the register specified by "index", and move that - * into the X register. Otherwise, just load into the X - * register the offset computed into the register specifed - * by "index". - */ - if (s != NULL) { - sappend(s, xfer_to_a(inst)); - sappend(s, new_stmt(BPF_ALU|BPF_ADD|BPF_X)); - sappend(s, new_stmt(BPF_MISC|BPF_TAX)); - } else - s = xfer_to_x(inst); - - /* - * Load the item at the sum of the offset we've put in the - * X register and the offset of the start of the link - * layer header (which is 0 if the radio header is - * variable-length; that header length is what we put - * into the X register and then added to the index). - */ - tmp = new_stmt(BPF_LD|BPF_IND|size); - tmp->s.k = off_ll; - sappend(s, tmp); - sappend(inst->s, s); - break; - - case Q_IP: - case Q_ARP: - case Q_RARP: - case Q_ATALK: - case Q_DECNET: - case Q_SCA: - case Q_LAT: - case Q_MOPRC: - case Q_MOPDL: -#ifdef INET6 - case Q_IPV6: -#endif - /* - * The offset is relative to the beginning of - * the network-layer header. - * XXX - are there any cases where we want - * off_nl_nosnap? - */ - s = gen_llprefixlen(); - - /* - * If "s" is non-null, it has code to arrange that the - * X register contains the length of the prefix preceding - * the link-layer header. Add to it the offset computed - * into the register specified by "index", and move that - * into the X register. Otherwise, just load into the X - * register the offset computed into the register specifed - * by "index". - */ - if (s != NULL) { - sappend(s, xfer_to_a(inst)); - sappend(s, new_stmt(BPF_ALU|BPF_ADD|BPF_X)); - sappend(s, new_stmt(BPF_MISC|BPF_TAX)); - } else - s = xfer_to_x(inst); - - /* - * Load the item at the sum of the offset we've put in the - * X register, the offset of the start of the network - * layer header, and the offset of the start of the link - * layer header (which is 0 if the radio header is - * variable-length; that header length is what we put - * into the X register and then added to the index). - */ - tmp = new_stmt(BPF_LD|BPF_IND|size); - tmp->s.k = off_ll + off_nl; - sappend(s, tmp); - sappend(inst->s, s); - - /* - * Do the computation only if the packet contains - * the protocol in question. - */ - b = gen_proto_abbrev(proto); - if (inst->b) - gen_and(inst->b, b); - inst->b = b; - break; - - case Q_SCTP: - case Q_TCP: - case Q_UDP: - case Q_ICMP: - case Q_IGMP: - case Q_IGRP: - case Q_PIM: - case Q_VRRP: - /* - * The offset is relative to the beginning of - * the transport-layer header. - * - * Load the X register with the length of the IPv4 header - * (plus the offset of the link-layer header, if it's - * a variable-length header), in bytes. - * - * XXX - are there any cases where we want - * off_nl_nosnap? - * XXX - we should, if we're built with - * IPv6 support, generate code to load either - * IPv4, IPv6, or both, as appropriate. - */ - s = gen_loadx_iphdrlen(); - - /* - * The X register now contains the sum of the length - * of any variable-length header preceding the link-layer - * header and the length of the network-layer header. - * Load into the A register the offset relative to - * the beginning of the transport layer header, - * add the X register to that, move that to the - * X register, and load with an offset from the - * X register equal to the offset of the network - * layer header relative to the beginning of - * the link-layer header plus the length of any - * fixed-length header preceding the link-layer - * header. - */ - sappend(s, xfer_to_a(inst)); - sappend(s, new_stmt(BPF_ALU|BPF_ADD|BPF_X)); - sappend(s, new_stmt(BPF_MISC|BPF_TAX)); - sappend(s, tmp = new_stmt(BPF_LD|BPF_IND|size)); - tmp->s.k = off_ll + off_nl; - sappend(inst->s, s); - - /* - * Do the computation only if the packet contains - * the protocol in question - which is true only - * if this is an IP datagram and is the first or - * only fragment of that datagram. - */ - gen_and(gen_proto_abbrev(proto), b = gen_ipfrag()); - if (inst->b) - gen_and(inst->b, b); -#ifdef INET6 - gen_and(gen_proto_abbrev(Q_IP), b); -#endif - inst->b = b; - break; -#ifdef INET6 - case Q_ICMPV6: - bpf_error("IPv6 upper-layer protocol is not supported by proto[x]"); - /*NOTREACHED*/ -#endif - } - inst->regno = regno; - s = new_stmt(BPF_ST); - s->s.k = regno; - sappend(inst->s, s); - - return inst; -} - -struct block * -gen_relation(code, a0, a1, reversed) - int code; - struct arth *a0, *a1; - int reversed; -{ - struct slist *s0, *s1, *s2; - struct block *b, *tmp; - - s0 = xfer_to_x(a1); - s1 = xfer_to_a(a0); - if (code == BPF_JEQ) { - s2 = new_stmt(BPF_ALU|BPF_SUB|BPF_X); - b = new_block(JMP(code)); - sappend(s1, s2); - } - else - b = new_block(BPF_JMP|code|BPF_X); - if (reversed) - gen_not(b); - - sappend(s0, s1); - sappend(a1->s, s0); - sappend(a0->s, a1->s); - - b->stmts = a0->s; - - free_reg(a0->regno); - free_reg(a1->regno); - - /* 'and' together protocol checks */ - if (a0->b) { - if (a1->b) { - gen_and(a0->b, tmp = a1->b); - } - else - tmp = a0->b; - } else - tmp = a1->b; - - if (tmp) - gen_and(tmp, b); - - return b; -} - -struct arth * -gen_loadlen() -{ - int regno = alloc_reg(); - struct arth *a = (struct arth *)newchunk(sizeof(*a)); - struct slist *s; - - s = new_stmt(BPF_LD|BPF_LEN); - s->next = new_stmt(BPF_ST); - s->next->s.k = regno; - a->s = s; - a->regno = regno; - - return a; -} - -struct arth * -gen_loadi(val) - int val; -{ - struct arth *a; - struct slist *s; - int reg; - - a = (struct arth *)newchunk(sizeof(*a)); - - reg = alloc_reg(); - - s = new_stmt(BPF_LD|BPF_IMM); - s->s.k = val; - s->next = new_stmt(BPF_ST); - s->next->s.k = reg; - a->s = s; - a->regno = reg; - - return a; -} - -struct arth * -gen_neg(a) - struct arth *a; -{ - struct slist *s; - - s = xfer_to_a(a); - sappend(a->s, s); - s = new_stmt(BPF_ALU|BPF_NEG); - s->s.k = 0; - sappend(a->s, s); - s = new_stmt(BPF_ST); - s->s.k = a->regno; - sappend(a->s, s); - - return a; -} - -struct arth * -gen_arth(code, a0, a1) - int code; - struct arth *a0, *a1; -{ - struct slist *s0, *s1, *s2; - - s0 = xfer_to_x(a1); - s1 = xfer_to_a(a0); - s2 = new_stmt(BPF_ALU|BPF_X|code); - - sappend(s1, s2); - sappend(s0, s1); - sappend(a1->s, s0); - sappend(a0->s, a1->s); - - free_reg(a0->regno); - free_reg(a1->regno); - - s0 = new_stmt(BPF_ST); - a0->regno = s0->s.k = alloc_reg(); - sappend(a0->s, s0); - - return a0; -} - -/* - * Here we handle simple allocation of the scratch registers. - * If too many registers are alloc'd, the allocator punts. - */ -static int regused[BPF_MEMWORDS]; -static int curreg; - -/* - * Return the next free register. - */ -static int -alloc_reg() -{ - int n = BPF_MEMWORDS; - - while (--n >= 0) { - if (regused[curreg]) - curreg = (curreg + 1) % BPF_MEMWORDS; - else { - regused[curreg] = 1; - return curreg; - } - } - bpf_error("too many registers needed to evaluate expression"); - /* NOTREACHED */ - return 0; -} - -/* - * Return a register to the table so it can - * be used later. - */ -static void -free_reg(n) - int n; -{ - regused[n] = 0; -} - -static struct block * -gen_len(jmp, n) - int jmp, n; -{ - struct slist *s; - struct block *b; - - s = new_stmt(BPF_LD|BPF_LEN); - b = new_block(JMP(jmp)); - b->stmts = s; - b->s.k = n; - - return b; -} - -struct block * -gen_greater(n) - int n; -{ - return gen_len(BPF_JGE, n); -} - -/* - * Actually, this is less than or equal. - */ -struct block * -gen_less(n) - int n; -{ - struct block *b; - - b = gen_len(BPF_JGT, n); - gen_not(b); - - return b; -} - -/* - * This is for "byte {idx} {op} {val}"; "idx" is treated as relative to - * the beginning of the link-layer header. - * XXX - that means you can't test values in the radiotap header, but - * as that header is difficult if not impossible to parse generally - * without a loop, that might not be a severe problem. A new keyword - * "radio" could be added for that, although what you'd really want - * would be a way of testing particular radio header values, which - * would generate code appropriate to the radio header in question. - */ -struct block * -gen_byteop(op, idx, val) - int op, idx, val; -{ - struct block *b; - struct slist *s; - - switch (op) { - default: - abort(); - - case '=': - return gen_cmp(OR_LINK, (u_int)idx, BPF_B, (bpf_int32)val); - - case '<': - b = gen_cmp_lt(OR_LINK, (u_int)idx, BPF_B, (bpf_int32)val); - return b; - - case '>': - b = gen_cmp_gt(OR_LINK, (u_int)idx, BPF_B, (bpf_int32)val); - return b; - - case '|': - s = new_stmt(BPF_ALU|BPF_OR|BPF_K); - break; - - case '&': - s = new_stmt(BPF_ALU|BPF_AND|BPF_K); - break; - } - s->s.k = val; - b = new_block(JMP(BPF_JEQ)); - b->stmts = s; - gen_not(b); - - return b; -} - -static u_char abroadcast[] = { 0x0 }; - -struct block * -gen_broadcast(proto) - int proto; -{ - bpf_u_int32 hostmask; - struct block *b0, *b1, *b2; - static u_char ebroadcast[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; - - switch (proto) { - - case Q_DEFAULT: - case Q_LINK: - switch (linktype) { - case DLT_ARCNET: - case DLT_ARCNET_LINUX: - return gen_ahostop(abroadcast, Q_DST); - case DLT_EN10MB: - return gen_ehostop(ebroadcast, Q_DST); - case DLT_FDDI: - return gen_fhostop(ebroadcast, Q_DST); - case DLT_IEEE802: - return gen_thostop(ebroadcast, Q_DST); - case DLT_IEEE802_11: - case DLT_IEEE802_11_RADIO_AVS: - case DLT_IEEE802_11_RADIO: - case DLT_PPI: - case DLT_PRISM_HEADER: - return gen_wlanhostop(ebroadcast, Q_DST); - case DLT_IP_OVER_FC: - return gen_ipfchostop(ebroadcast, Q_DST); - case DLT_SUNATM: - if (is_lane) { - /* - * Check that the packet doesn't begin with an - * LE Control marker. (We've already generated - * a test for LANE.) - */ - b1 = gen_cmp(OR_LINK, SUNATM_PKT_BEGIN_POS, BPF_H, - 0xFF00); - gen_not(b1); - - /* - * Now check the MAC address. - */ - b0 = gen_ehostop(ebroadcast, Q_DST); - gen_and(b1, b0); - return b0; - } - break; - default: - bpf_error("not a broadcast link"); - } - break; - - case Q_IP: - b0 = gen_linktype(ETHERTYPE_IP); - hostmask = ~netmask; - b1 = gen_mcmp(OR_NET, 16, BPF_W, (bpf_int32)0, hostmask); - b2 = gen_mcmp(OR_NET, 16, BPF_W, - (bpf_int32)(~0 & hostmask), hostmask); - gen_or(b1, b2); - gen_and(b0, b2); - return b2; - } - bpf_error("only link-layer/IP broadcast filters supported"); - /* NOTREACHED */ - return NULL; -} - -/* - * Generate code to test the low-order bit of a MAC address (that's - * the bottom bit of the *first* byte). - */ -static struct block * -gen_mac_multicast(offset) - int offset; -{ - register struct block *b0; - register struct slist *s; - - /* link[offset] & 1 != 0 */ - s = gen_load_a(OR_LINK, offset, BPF_B); - b0 = new_block(JMP(BPF_JSET)); - b0->s.k = 1; - b0->stmts = s; - return b0; -} - -struct block * -gen_multicast(proto) - int proto; -{ - register struct block *b0, *b1, *b2; - register struct slist *s; - - switch (proto) { - - case Q_DEFAULT: - case Q_LINK: - switch (linktype) { - case DLT_ARCNET: - case DLT_ARCNET_LINUX: - /* all ARCnet multicasts use the same address */ - return gen_ahostop(abroadcast, Q_DST); - case DLT_EN10MB: - /* ether[0] & 1 != 0 */ - return gen_mac_multicast(0); - case DLT_FDDI: - /* - * XXX TEST THIS: MIGHT NOT PORT PROPERLY XXX - * - * XXX - was that referring to bit-order issues? - */ - /* fddi[1] & 1 != 0 */ - return gen_mac_multicast(1); - case DLT_IEEE802: - /* tr[2] & 1 != 0 */ - return gen_mac_multicast(2); - case DLT_IEEE802_11: - case DLT_IEEE802_11_RADIO_AVS: - case DLT_PPI: - case DLT_IEEE802_11_RADIO: - case DLT_PRISM_HEADER: - /* - * Oh, yuk. - * - * For control frames, there is no DA. - * - * For management frames, DA is at an - * offset of 4 from the beginning of - * the packet. - * - * For data frames, DA is at an offset - * of 4 from the beginning of the packet - * if To DS is clear and at an offset of - * 16 from the beginning of the packet - * if To DS is set. - */ - - /* - * Generate the tests to be done for data frames. - * - * First, check for To DS set, i.e. "link[1] & 0x01". - */ - s = gen_load_a(OR_LINK, 1, BPF_B); - b1 = new_block(JMP(BPF_JSET)); - b1->s.k = 0x01; /* To DS */ - b1->stmts = s; - - /* - * If To DS is set, the DA is at 16. - */ - b0 = gen_mac_multicast(16); - gen_and(b1, b0); - - /* - * Now, check for To DS not set, i.e. check - * "!(link[1] & 0x01)". - */ - s = gen_load_a(OR_LINK, 1, BPF_B); - b2 = new_block(JMP(BPF_JSET)); - b2->s.k = 0x01; /* To DS */ - b2->stmts = s; - gen_not(b2); - - /* - * If To DS is not set, the DA is at 4. - */ - b1 = gen_mac_multicast(4); - gen_and(b2, b1); - - /* - * Now OR together the last two checks. That gives - * the complete set of checks for data frames. - */ - gen_or(b1, b0); - - /* - * Now check for a data frame. - * I.e, check "link[0] & 0x08". - */ - s = gen_load_a(OR_LINK, 0, BPF_B); - b1 = new_block(JMP(BPF_JSET)); - b1->s.k = 0x08; - b1->stmts = s; - - /* - * AND that with the checks done for data frames. - */ - gen_and(b1, b0); - - /* - * If the high-order bit of the type value is 0, this - * is a management frame. - * I.e, check "!(link[0] & 0x08)". - */ - s = gen_load_a(OR_LINK, 0, BPF_B); - b2 = new_block(JMP(BPF_JSET)); - b2->s.k = 0x08; - b2->stmts = s; - gen_not(b2); - - /* - * For management frames, the DA is at 4. - */ - b1 = gen_mac_multicast(4); - gen_and(b2, b1); - - /* - * OR that with the checks done for data frames. - * That gives the checks done for management and - * data frames. - */ - gen_or(b1, b0); - - /* - * If the low-order bit of the type value is 1, - * this is either a control frame or a frame - * with a reserved type, and thus not a - * frame with an SA. - * - * I.e., check "!(link[0] & 0x04)". - */ - s = gen_load_a(OR_LINK, 0, BPF_B); - b1 = new_block(JMP(BPF_JSET)); - b1->s.k = 0x04; - b1->stmts = s; - gen_not(b1); - - /* - * AND that with the checks for data and management - * frames. - */ - gen_and(b1, b0); - return b0; - case DLT_IP_OVER_FC: - b0 = gen_mac_multicast(2); - return b0; - case DLT_SUNATM: - if (is_lane) { - /* - * Check that the packet doesn't begin with an - * LE Control marker. (We've already generated - * a test for LANE.) - */ - b1 = gen_cmp(OR_LINK, SUNATM_PKT_BEGIN_POS, BPF_H, - 0xFF00); - gen_not(b1); - - /* ether[off_mac] & 1 != 0 */ - b0 = gen_mac_multicast(off_mac); - gen_and(b1, b0); - return b0; - } - break; - default: - break; - } - /* Link not known to support multicasts */ - break; - - case Q_IP: - b0 = gen_linktype(ETHERTYPE_IP); - b1 = gen_cmp_ge(OR_NET, 16, BPF_B, (bpf_int32)224); - gen_and(b0, b1); - return b1; - -#ifdef INET6 - case Q_IPV6: - b0 = gen_linktype(ETHERTYPE_IPV6); - b1 = gen_cmp(OR_NET, 24, BPF_B, (bpf_int32)255); - gen_and(b0, b1); - return b1; -#endif /* INET6 */ - } - bpf_error("link-layer multicast filters supported only on ethernet/FDDI/token ring/ARCNET/802.11/ATM LANE/Fibre Channel"); - /* NOTREACHED */ - return NULL; -} - -/* - * generate command for inbound/outbound. It's here so we can - * make it link-type specific. 'dir' = 0 implies "inbound", - * = 1 implies "outbound". - */ -struct block * -gen_inbound(dir) - int dir; -{ - register struct block *b0; - - /* - * Only some data link types support inbound/outbound qualifiers. - */ - switch (linktype) { - case DLT_SLIP: - b0 = gen_relation(BPF_JEQ, - gen_load(Q_LINK, gen_loadi(0), 1), - gen_loadi(0), - dir); - break; - - case DLT_LINUX_SLL: - if (dir) { - /* - * Match packets sent by this machine. - */ - b0 = gen_cmp(OR_LINK, 0, BPF_H, LINUX_SLL_OUTGOING); - } else { - /* - * Match packets sent to this machine. - * (No broadcast or multicast packets, or - * packets sent to some other machine and - * received promiscuously.) - * - * XXX - packets sent to other machines probably - * shouldn't be matched, but what about broadcast - * or multicast packets we received? - */ - b0 = gen_cmp(OR_LINK, 0, BPF_H, LINUX_SLL_HOST); - } - break; - -#ifdef HAVE_NET_PFVAR_H - case DLT_PFLOG: - b0 = gen_cmp(OR_LINK, offsetof(struct pfloghdr, dir), BPF_B, - (bpf_int32)((dir == 0) ? PF_IN : PF_OUT)); - break; -#endif - - case DLT_PPP_PPPD: - if (dir) { - /* match outgoing packets */ - b0 = gen_cmp(OR_LINK, 0, BPF_B, PPP_PPPD_OUT); - } else { - /* match incoming packets */ - b0 = gen_cmp(OR_LINK, 0, BPF_B, PPP_PPPD_IN); - } - break; - - case DLT_JUNIPER_MFR: - case DLT_JUNIPER_MLFR: - case DLT_JUNIPER_MLPPP: - case DLT_JUNIPER_ATM1: - case DLT_JUNIPER_ATM2: - case DLT_JUNIPER_PPPOE: - case DLT_JUNIPER_PPPOE_ATM: - case DLT_JUNIPER_GGSN: - case DLT_JUNIPER_ES: - case DLT_JUNIPER_MONITOR: - case DLT_JUNIPER_SERVICES: - case DLT_JUNIPER_ETHER: - case DLT_JUNIPER_PPP: - case DLT_JUNIPER_FRELAY: - case DLT_JUNIPER_CHDLC: - case DLT_JUNIPER_VP: - /* juniper flags (including direction) are stored - * the byte after the 3-byte magic number */ - if (dir) { - /* match outgoing packets */ - b0 = gen_mcmp(OR_LINK, 3, BPF_B, 0, 0x01); - } else { - /* match incoming packets */ - b0 = gen_mcmp(OR_LINK, 3, BPF_B, 1, 0x01); - } - break; - - default: - bpf_error("inbound/outbound not supported on linktype %d", - linktype); - b0 = NULL; - /* NOTREACHED */ - } - return (b0); -} - -#ifdef HAVE_NET_PFVAR_H -/* PF firewall log matched interface */ -struct block * -gen_pf_ifname(const char *ifname) -{ - struct block *b0; - u_int len, off; - - if (linktype == DLT_PFLOG) { - len = sizeof(((struct pfloghdr *)0)->ifname); - off = offsetof(struct pfloghdr, ifname); - } else { - bpf_error("ifname not supported on linktype 0x%x", linktype); - /* NOTREACHED */ - } - if (strlen(ifname) >= len) { - bpf_error("ifname interface names can only be %d characters", - len-1); - /* NOTREACHED */ - } - b0 = gen_bcmp(OR_LINK, off, strlen(ifname), (const u_char *)ifname); - return (b0); -} - -/* PF firewall log ruleset name */ -struct block * -gen_pf_ruleset(char *ruleset) -{ - struct block *b0; - - if (linktype != DLT_PFLOG) { - bpf_error("ruleset not supported on linktype 0x%x", linktype); - /* NOTREACHED */ - } - if (strlen(ruleset) >= sizeof(((struct pfloghdr *)0)->ruleset)) { - bpf_error("ruleset names can only be %ld characters", - (long)(sizeof(((struct pfloghdr *)0)->ruleset) - 1)); - /* NOTREACHED */ - } - b0 = gen_bcmp(OR_LINK, offsetof(struct pfloghdr, ruleset), - strlen(ruleset), (const u_char *)ruleset); - return (b0); -} - -/* PF firewall log rule number */ -struct block * -gen_pf_rnr(int rnr) -{ - struct block *b0; - - if (linktype == DLT_PFLOG) { - b0 = gen_cmp(OR_LINK, offsetof(struct pfloghdr, rulenr), BPF_W, - (bpf_int32)rnr); - } else { - bpf_error("rnr not supported on linktype 0x%x", linktype); - /* NOTREACHED */ - } - - return (b0); -} - -/* PF firewall log sub-rule number */ -struct block * -gen_pf_srnr(int srnr) -{ - struct block *b0; - - if (linktype != DLT_PFLOG) { - bpf_error("srnr not supported on linktype 0x%x", linktype); - /* NOTREACHED */ - } - - b0 = gen_cmp(OR_LINK, offsetof(struct pfloghdr, subrulenr), BPF_W, - (bpf_int32)srnr); - return (b0); -} - -/* PF firewall log reason code */ -struct block * -gen_pf_reason(int reason) -{ - struct block *b0; - - if (linktype == DLT_PFLOG) { - b0 = gen_cmp(OR_LINK, offsetof(struct pfloghdr, reason), BPF_B, - (bpf_int32)reason); - } else { - bpf_error("reason not supported on linktype 0x%x", linktype); - /* NOTREACHED */ - } - - return (b0); -} - -/* PF firewall log action */ -struct block * -gen_pf_action(int action) -{ - struct block *b0; - - if (linktype == DLT_PFLOG) { - b0 = gen_cmp(OR_LINK, offsetof(struct pfloghdr, action), BPF_B, - (bpf_int32)action); - } else { - bpf_error("action not supported on linktype 0x%x", linktype); - /* NOTREACHED */ - } - - return (b0); -} -#else /* !HAVE_NET_PFVAR_H */ -struct block * -gen_pf_ifname(const char *ifname) -{ - bpf_error("libpcap was compiled without pf support"); - /* NOTREACHED */ - return (NULL); -} - -struct block * -gen_pf_ruleset(char *ruleset) -{ - bpf_error("libpcap was compiled on a machine without pf support"); - /* NOTREACHED */ - return (NULL); -} - -struct block * -gen_pf_rnr(int rnr) -{ - bpf_error("libpcap was compiled on a machine without pf support"); - /* NOTREACHED */ - return (NULL); -} - -struct block * -gen_pf_srnr(int srnr) -{ - bpf_error("libpcap was compiled on a machine without pf support"); - /* NOTREACHED */ - return (NULL); -} - -struct block * -gen_pf_reason(int reason) -{ - bpf_error("libpcap was compiled on a machine without pf support"); - /* NOTREACHED */ - return (NULL); -} - -struct block * -gen_pf_action(int action) -{ - bpf_error("libpcap was compiled on a machine without pf support"); - /* NOTREACHED */ - return (NULL); -} -#endif /* HAVE_NET_PFVAR_H */ - -struct block * -gen_acode(eaddr, q) - register const u_char *eaddr; - struct qual q; -{ - if ((q.addr == Q_HOST || q.addr == Q_DEFAULT) && q.proto == Q_LINK) { - if (linktype == DLT_ARCNET || linktype == DLT_ARCNET_LINUX) - return gen_ahostop(eaddr, (int)q.dir); - } - bpf_error("ARCnet address used in non-arc expression"); - /* NOTREACHED */ - return NULL; -} - -static struct block * -gen_ahostop(eaddr, dir) - register const u_char *eaddr; - register int dir; -{ - register struct block *b0, *b1; - - switch (dir) { - /* src comes first, different from Ethernet */ - case Q_SRC: - return gen_bcmp(OR_LINK, 0, 1, eaddr); - - case Q_DST: - return gen_bcmp(OR_LINK, 1, 1, eaddr); - - case Q_AND: - b0 = gen_ahostop(eaddr, Q_SRC); - b1 = gen_ahostop(eaddr, Q_DST); - gen_and(b0, b1); - return b1; - - case Q_DEFAULT: - case Q_OR: - b0 = gen_ahostop(eaddr, Q_SRC); - b1 = gen_ahostop(eaddr, Q_DST); - gen_or(b0, b1); - return b1; - } - abort(); - /* NOTREACHED */ -} - -/* - * support IEEE 802.1Q VLAN trunk over ethernet - */ -struct block * -gen_vlan(vlan_num) - int vlan_num; -{ - struct block *b0, *b1; - - /* can't check for VLAN-encapsulated packets inside MPLS */ - if (label_stack_depth > 0) - bpf_error("no VLAN match after MPLS"); - - /* - * Change the offsets to point to the type and data fields within - * the VLAN packet. Just increment the offsets, so that we - * can support a hierarchy, e.g. "vlan 300 && vlan 200" to - * capture VLAN 200 encapsulated within VLAN 100. - * - * XXX - this is a bit of a kludge. If we were to split the - * compiler into a parser that parses an expression and - * generates an expression tree, and a code generator that - * takes an expression tree (which could come from our - * parser or from some other parser) and generates BPF code, - * we could perhaps make the offsets parameters of routines - * and, in the handler for an "AND" node, pass to subnodes - * other than the VLAN node the adjusted offsets. - * - * This would mean that "vlan" would, instead of changing the - * behavior of *all* tests after it, change only the behavior - * of tests ANDed with it. That would change the documented - * semantics of "vlan", which might break some expressions. - * However, it would mean that "(vlan and ip) or ip" would check - * both for VLAN-encapsulated IP and IP-over-Ethernet, rather than - * checking only for VLAN-encapsulated IP, so that could still - * be considered worth doing; it wouldn't break expressions - * that are of the form "vlan and ..." or "vlan N and ...", - * which I suspect are the most common expressions involving - * "vlan". "vlan or ..." doesn't necessarily do what the user - * would really want, now, as all the "or ..." tests would - * be done assuming a VLAN, even though the "or" could be viewed - * as meaning "or, if this isn't a VLAN packet...". - */ - orig_linktype = off_linktype; /* save original values */ - orig_nl = off_nl; - - switch (linktype) { - - case DLT_EN10MB: - off_linktype += 4; - off_nl_nosnap += 4; - off_nl += 4; - break; - - default: - bpf_error("no VLAN support for data link type %d", - linktype); - /*NOTREACHED*/ - } - - /* check for VLAN */ - b0 = gen_cmp(OR_LINK, orig_linktype, BPF_H, (bpf_int32)ETHERTYPE_8021Q); - - /* If a specific VLAN is requested, check VLAN id */ - if (vlan_num >= 0) { - b1 = gen_mcmp(OR_LINK, orig_nl, BPF_H, (bpf_int32)vlan_num, - 0x0fff); - gen_and(b0, b1); - b0 = b1; - } - - return (b0); -} - -/* - * support for MPLS - */ -struct block * -gen_mpls(label_num) - int label_num; -{ - struct block *b0,*b1; - - /* - * Change the offsets to point to the type and data fields within - * the MPLS packet. Just increment the offsets, so that we - * can support a hierarchy, e.g. "mpls 100000 && mpls 1024" to - * capture packets with an outer label of 100000 and an inner - * label of 1024. - * - * XXX - this is a bit of a kludge. See comments in gen_vlan(). - */ - orig_nl = off_nl; - - if (label_stack_depth > 0) { - /* just match the bottom-of-stack bit clear */ - b0 = gen_mcmp(OR_LINK, orig_nl-2, BPF_B, 0, 0x01); - } else { - /* - * Indicate that we're checking MPLS-encapsulated headers, - * to make sure higher level code generators don't try to - * match against IP-related protocols such as Q_ARP, Q_RARP - * etc. - */ - switch (linktype) { - - case DLT_C_HDLC: /* fall through */ - case DLT_EN10MB: - b0 = gen_linktype(ETHERTYPE_MPLS); - break; - - case DLT_PPP: - b0 = gen_linktype(PPP_MPLS_UCAST); - break; - - /* FIXME add other DLT_s ... - * for Frame-Relay/and ATM this may get messy due to SNAP headers - * leave it for now */ - - default: - bpf_error("no MPLS support for data link type %d", - linktype); - b0 = NULL; - /*NOTREACHED*/ - break; - } - } - - /* If a specific MPLS label is requested, check it */ - if (label_num >= 0) { - label_num = label_num << 12; /* label is shifted 12 bits on the wire */ - b1 = gen_mcmp(OR_LINK, orig_nl, BPF_W, (bpf_int32)label_num, - 0xfffff000); /* only compare the first 20 bits */ - gen_and(b0, b1); - b0 = b1; - } - - off_nl_nosnap += 4; - off_nl += 4; - label_stack_depth++; - return (b0); -} - -/* - * Support PPPOE discovery and session. - */ -struct block * -gen_pppoed() -{ - /* check for PPPoE discovery */ - return gen_linktype((bpf_int32)ETHERTYPE_PPPOED); -} - -struct block * -gen_pppoes() -{ - struct block *b0; - - /* - * Test against the PPPoE session link-layer type. - */ - b0 = gen_linktype((bpf_int32)ETHERTYPE_PPPOES); - - /* - * Change the offsets to point to the type and data fields within - * the PPP packet. - * - * XXX - this is a bit of a kludge. If we were to split the - * compiler into a parser that parses an expression and - * generates an expression tree, and a code generator that - * takes an expression tree (which could come from our - * parser or from some other parser) and generates BPF code, - * we could perhaps make the offsets parameters of routines - * and, in the handler for an "AND" node, pass to subnodes - * other than the PPPoE node the adjusted offsets. - * - * This would mean that "pppoes" would, instead of changing the - * behavior of *all* tests after it, change only the behavior - * of tests ANDed with it. That would change the documented - * semantics of "pppoes", which might break some expressions. - * However, it would mean that "(pppoes and ip) or ip" would check - * both for VLAN-encapsulated IP and IP-over-Ethernet, rather than - * checking only for VLAN-encapsulated IP, so that could still - * be considered worth doing; it wouldn't break expressions - * that are of the form "pppoes and ..." which I suspect are the - * most common expressions involving "pppoes". "pppoes or ..." - * doesn't necessarily do what the user would really want, now, - * as all the "or ..." tests would be done assuming PPPoE, even - * though the "or" could be viewed as meaning "or, if this isn't - * a PPPoE packet...". - */ - orig_linktype = off_linktype; /* save original values */ - orig_nl = off_nl; - - /* - * The "network-layer" protocol is PPPoE, which has a 6-byte - * PPPoE header, followed by PPP payload, so we set the - * offsets to the network layer offset plus 6 bytes for - * the PPPoE header plus the values appropriate for PPP when - * encapsulated in Ethernet (which means there's no HDLC - * encapsulation). - */ - off_linktype = orig_nl + 6; - off_nl = orig_nl + 6 + 2; - off_nl_nosnap = orig_nl + 6 + 2; - - /* - * Set the link-layer type to PPP, as all subsequent tests will - * be on the encapsulated PPP header. - */ - linktype = DLT_PPP; - - return b0; -} - -struct block * -gen_atmfield_code(atmfield, jvalue, jtype, reverse) - int atmfield; - bpf_int32 jvalue; - bpf_u_int32 jtype; - int reverse; -{ - struct block *b0; - - switch (atmfield) { - - case A_VPI: - if (!is_atm) - bpf_error("'vpi' supported only on raw ATM"); - if (off_vpi == (u_int)-1) - abort(); - b0 = gen_ncmp(OR_LINK, off_vpi, BPF_B, 0xffffffff, jtype, - reverse, jvalue); - break; - - case A_VCI: - if (!is_atm) - bpf_error("'vci' supported only on raw ATM"); - if (off_vci == (u_int)-1) - abort(); - b0 = gen_ncmp(OR_LINK, off_vci, BPF_H, 0xffffffff, jtype, - reverse, jvalue); - break; - - case A_PROTOTYPE: - if (off_proto == (u_int)-1) - abort(); /* XXX - this isn't on FreeBSD */ - b0 = gen_ncmp(OR_LINK, off_proto, BPF_B, 0x0f, jtype, - reverse, jvalue); - break; - - case A_MSGTYPE: - if (off_payload == (u_int)-1) - abort(); - b0 = gen_ncmp(OR_LINK, off_payload + MSG_TYPE_POS, BPF_B, - 0xffffffff, jtype, reverse, jvalue); - break; - - case A_CALLREFTYPE: - if (!is_atm) - bpf_error("'callref' supported only on raw ATM"); - if (off_proto == (u_int)-1) - abort(); - b0 = gen_ncmp(OR_LINK, off_proto, BPF_B, 0xffffffff, - jtype, reverse, jvalue); - break; - - default: - abort(); - } - return b0; -} - -struct block * -gen_atmtype_abbrev(type) - int type; -{ - struct block *b0, *b1; - - switch (type) { - - case A_METAC: - /* Get all packets in Meta signalling Circuit */ - if (!is_atm) - bpf_error("'metac' supported only on raw ATM"); - b0 = gen_atmfield_code(A_VPI, 0, BPF_JEQ, 0); - b1 = gen_atmfield_code(A_VCI, 1, BPF_JEQ, 0); - gen_and(b0, b1); - break; - - case A_BCC: - /* Get all packets in Broadcast Circuit*/ - if (!is_atm) - bpf_error("'bcc' supported only on raw ATM"); - b0 = gen_atmfield_code(A_VPI, 0, BPF_JEQ, 0); - b1 = gen_atmfield_code(A_VCI, 2, BPF_JEQ, 0); - gen_and(b0, b1); - break; - - case A_OAMF4SC: - /* Get all cells in Segment OAM F4 circuit*/ - if (!is_atm) - bpf_error("'oam4sc' supported only on raw ATM"); - b0 = gen_atmfield_code(A_VPI, 0, BPF_JEQ, 0); - b1 = gen_atmfield_code(A_VCI, 3, BPF_JEQ, 0); - gen_and(b0, b1); - break; - - case A_OAMF4EC: - /* Get all cells in End-to-End OAM F4 Circuit*/ - if (!is_atm) - bpf_error("'oam4ec' supported only on raw ATM"); - b0 = gen_atmfield_code(A_VPI, 0, BPF_JEQ, 0); - b1 = gen_atmfield_code(A_VCI, 4, BPF_JEQ, 0); - gen_and(b0, b1); - break; - - case A_SC: - /* Get all packets in connection Signalling Circuit */ - if (!is_atm) - bpf_error("'sc' supported only on raw ATM"); - b0 = gen_atmfield_code(A_VPI, 0, BPF_JEQ, 0); - b1 = gen_atmfield_code(A_VCI, 5, BPF_JEQ, 0); - gen_and(b0, b1); - break; - - case A_ILMIC: - /* Get all packets in ILMI Circuit */ - if (!is_atm) - bpf_error("'ilmic' supported only on raw ATM"); - b0 = gen_atmfield_code(A_VPI, 0, BPF_JEQ, 0); - b1 = gen_atmfield_code(A_VCI, 16, BPF_JEQ, 0); - gen_and(b0, b1); - break; - - case A_LANE: - /* Get all LANE packets */ - if (!is_atm) - bpf_error("'lane' supported only on raw ATM"); - b1 = gen_atmfield_code(A_PROTOTYPE, PT_LANE, BPF_JEQ, 0); - - /* - * Arrange that all subsequent tests assume LANE - * rather than LLC-encapsulated packets, and set - * the offsets appropriately for LANE-encapsulated - * Ethernet. - * - * "off_mac" is the offset of the Ethernet header, - * which is 2 bytes past the ATM pseudo-header - * (skipping the pseudo-header and 2-byte LE Client - * field). The other offsets are Ethernet offsets - * relative to "off_mac". - */ - is_lane = 1; - off_mac = off_payload + 2; /* MAC header */ - off_linktype = off_mac + 12; - off_nl = off_mac + 14; /* Ethernet II */ - off_nl_nosnap = off_mac + 17; /* 802.3+802.2 */ - break; - - case A_LLC: - /* Get all LLC-encapsulated packets */ - if (!is_atm) - bpf_error("'llc' supported only on raw ATM"); - b1 = gen_atmfield_code(A_PROTOTYPE, PT_LLC, BPF_JEQ, 0); - is_lane = 0; - break; - - default: - abort(); - } - return b1; -} - -/* - * Filtering for MTP2 messages based on li value - * FISU, length is null - * LSSU, length is 1 or 2 - * MSU, length is 3 or more - */ -struct block * -gen_mtp2type_abbrev(type) - int type; -{ - struct block *b0, *b1; - - switch (type) { - - case M_FISU: - if ( (linktype != DLT_MTP2) && - (linktype != DLT_MTP2_WITH_PHDR) ) - bpf_error("'fisu' supported only on MTP2"); - /* gen_ncmp(offrel, offset, size, mask, jtype, reverse, value) */ - b0 = gen_ncmp(OR_PACKET, off_li, BPF_B, 0x3f, BPF_JEQ, 0, 0); - break; - - case M_LSSU: - if ( (linktype != DLT_MTP2) && - (linktype != DLT_MTP2_WITH_PHDR) ) - bpf_error("'lssu' supported only on MTP2"); - b0 = gen_ncmp(OR_PACKET, off_li, BPF_B, 0x3f, BPF_JGT, 1, 2); - b1 = gen_ncmp(OR_PACKET, off_li, BPF_B, 0x3f, BPF_JGT, 0, 0); - gen_and(b1, b0); - break; - - case M_MSU: - if ( (linktype != DLT_MTP2) && - (linktype != DLT_MTP2_WITH_PHDR) ) - bpf_error("'msu' supported only on MTP2"); - b0 = gen_ncmp(OR_PACKET, off_li, BPF_B, 0x3f, BPF_JGT, 0, 2); - break; - - default: - abort(); - } - return b0; -} - -struct block * -gen_mtp3field_code(mtp3field, jvalue, jtype, reverse) - int mtp3field; - bpf_u_int32 jvalue; - bpf_u_int32 jtype; - int reverse; -{ - struct block *b0; - bpf_u_int32 val1 , val2 , val3; - - switch (mtp3field) { - - case M_SIO: - if (off_sio == (u_int)-1) - bpf_error("'sio' supported only on SS7"); - /* sio coded on 1 byte so max value 255 */ - if(jvalue > 255) - bpf_error("sio value %u too big; max value = 255", - jvalue); - b0 = gen_ncmp(OR_PACKET, off_sio, BPF_B, 0xffffffff, - (u_int)jtype, reverse, (u_int)jvalue); - break; - - case M_OPC: - if (off_opc == (u_int)-1) - bpf_error("'opc' supported only on SS7"); - /* opc coded on 14 bits so max value 16383 */ - if (jvalue > 16383) - bpf_error("opc value %u too big; max value = 16383", - jvalue); - /* the following instructions are made to convert jvalue - * to the form used to write opc in an ss7 message*/ - val1 = jvalue & 0x00003c00; - val1 = val1 >>10; - val2 = jvalue & 0x000003fc; - val2 = val2 <<6; - val3 = jvalue & 0x00000003; - val3 = val3 <<22; - jvalue = val1 + val2 + val3; - b0 = gen_ncmp(OR_PACKET, off_opc, BPF_W, 0x00c0ff0f, - (u_int)jtype, reverse, (u_int)jvalue); - break; - - case M_DPC: - if (off_dpc == (u_int)-1) - bpf_error("'dpc' supported only on SS7"); - /* dpc coded on 14 bits so max value 16383 */ - if (jvalue > 16383) - bpf_error("dpc value %u too big; max value = 16383", - jvalue); - /* the following instructions are made to convert jvalue - * to the forme used to write dpc in an ss7 message*/ - val1 = jvalue & 0x000000ff; - val1 = val1 << 24; - val2 = jvalue & 0x00003f00; - val2 = val2 << 8; - jvalue = val1 + val2; - b0 = gen_ncmp(OR_PACKET, off_dpc, BPF_W, 0xff3f0000, - (u_int)jtype, reverse, (u_int)jvalue); - break; - - case M_SLS: - if (off_sls == (u_int)-1) - bpf_error("'sls' supported only on SS7"); - /* sls coded on 4 bits so max value 15 */ - if (jvalue > 15) - bpf_error("sls value %u too big; max value = 15", - jvalue); - /* the following instruction is made to convert jvalue - * to the forme used to write sls in an ss7 message*/ - jvalue = jvalue << 4; - b0 = gen_ncmp(OR_PACKET, off_sls, BPF_B, 0xf0, - (u_int)jtype,reverse, (u_int)jvalue); - break; - - default: - abort(); - } - return b0; -} - -static struct block * -gen_msg_abbrev(type) - int type; -{ - struct block *b1; - - /* - * Q.2931 signalling protocol messages for handling virtual circuits - * establishment and teardown - */ - switch (type) { - - case A_SETUP: - b1 = gen_atmfield_code(A_MSGTYPE, SETUP, BPF_JEQ, 0); - break; - - case A_CALLPROCEED: - b1 = gen_atmfield_code(A_MSGTYPE, CALL_PROCEED, BPF_JEQ, 0); - break; - - case A_CONNECT: - b1 = gen_atmfield_code(A_MSGTYPE, CONNECT, BPF_JEQ, 0); - break; - - case A_CONNECTACK: - b1 = gen_atmfield_code(A_MSGTYPE, CONNECT_ACK, BPF_JEQ, 0); - break; - - case A_RELEASE: - b1 = gen_atmfield_code(A_MSGTYPE, RELEASE, BPF_JEQ, 0); - break; - - case A_RELEASE_DONE: - b1 = gen_atmfield_code(A_MSGTYPE, RELEASE_DONE, BPF_JEQ, 0); - break; - - default: - abort(); - } - return b1; -} - -struct block * -gen_atmmulti_abbrev(type) - int type; -{ - struct block *b0, *b1; - - switch (type) { - - case A_OAM: - if (!is_atm) - bpf_error("'oam' supported only on raw ATM"); - b1 = gen_atmmulti_abbrev(A_OAMF4); - break; - - case A_OAMF4: - if (!is_atm) - bpf_error("'oamf4' supported only on raw ATM"); - /* OAM F4 type */ - b0 = gen_atmfield_code(A_VCI, 3, BPF_JEQ, 0); - b1 = gen_atmfield_code(A_VCI, 4, BPF_JEQ, 0); - gen_or(b0, b1); - b0 = gen_atmfield_code(A_VPI, 0, BPF_JEQ, 0); - gen_and(b0, b1); - break; - - case A_CONNECTMSG: - /* - * Get Q.2931 signalling messages for switched - * virtual connection - */ - if (!is_atm) - bpf_error("'connectmsg' supported only on raw ATM"); - b0 = gen_msg_abbrev(A_SETUP); - b1 = gen_msg_abbrev(A_CALLPROCEED); - gen_or(b0, b1); - b0 = gen_msg_abbrev(A_CONNECT); - gen_or(b0, b1); - b0 = gen_msg_abbrev(A_CONNECTACK); - gen_or(b0, b1); - b0 = gen_msg_abbrev(A_RELEASE); - gen_or(b0, b1); - b0 = gen_msg_abbrev(A_RELEASE_DONE); - gen_or(b0, b1); - b0 = gen_atmtype_abbrev(A_SC); - gen_and(b0, b1); - break; - - case A_METACONNECT: - if (!is_atm) - bpf_error("'metaconnect' supported only on raw ATM"); - b0 = gen_msg_abbrev(A_SETUP); - b1 = gen_msg_abbrev(A_CALLPROCEED); - gen_or(b0, b1); - b0 = gen_msg_abbrev(A_CONNECT); - gen_or(b0, b1); - b0 = gen_msg_abbrev(A_RELEASE); - gen_or(b0, b1); - b0 = gen_msg_abbrev(A_RELEASE_DONE); - gen_or(b0, b1); - b0 = gen_atmtype_abbrev(A_METAC); - gen_and(b0, b1); - break; - - default: - abort(); - } - return b1; -} diff --git a/contrib/libpcap/gencode.h b/contrib/libpcap/gencode.h deleted file mode 100644 index f4c5cf7..0000000 --- a/contrib/libpcap/gencode.h +++ /dev/null @@ -1,332 +0,0 @@ -/* - * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * @(#) $Header: /tcpdump/master/libpcap/gencode.h,v 1.60.2.11 2007/06/11 09:52:04 guy Exp $ (LBL) - */ - -/* - * ATM support: - * - * Copyright (c) 1997 Yen Yen Lim and North Dakota State University - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Yen Yen Lim and - * North Dakota State University - * 4. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef HAVE___ATTRIBUTE__ -#define __attribute__(x) -#endif /* HAVE___ATTRIBUTE__ */ - -/* Address qualifiers. */ - -#define Q_HOST 1 -#define Q_NET 2 -#define Q_PORT 3 -#define Q_GATEWAY 4 -#define Q_PROTO 5 -#define Q_PROTOCHAIN 6 -#define Q_PORTRANGE 7 - -/* Protocol qualifiers. */ - -#define Q_LINK 1 -#define Q_IP 2 -#define Q_ARP 3 -#define Q_RARP 4 -#define Q_SCTP 5 -#define Q_TCP 6 -#define Q_UDP 7 -#define Q_ICMP 8 -#define Q_IGMP 9 -#define Q_IGRP 10 - - -#define Q_ATALK 11 -#define Q_DECNET 12 -#define Q_LAT 13 -#define Q_SCA 14 -#define Q_MOPRC 15 -#define Q_MOPDL 16 - - -#define Q_IPV6 17 -#define Q_ICMPV6 18 -#define Q_AH 19 -#define Q_ESP 20 - -#define Q_PIM 21 -#define Q_VRRP 22 - -#define Q_AARP 23 - -#define Q_ISO 24 -#define Q_ESIS 25 -#define Q_ISIS 26 -#define Q_CLNP 27 - -#define Q_STP 28 - -#define Q_IPX 29 - -#define Q_NETBEUI 30 - -/* IS-IS Levels */ -#define Q_ISIS_L1 31 -#define Q_ISIS_L2 32 -/* PDU types */ -#define Q_ISIS_IIH 33 -#define Q_ISIS_LAN_IIH 34 -#define Q_ISIS_PTP_IIH 35 -#define Q_ISIS_SNP 36 -#define Q_ISIS_CSNP 37 -#define Q_ISIS_PSNP 38 -#define Q_ISIS_LSP 39 - -#define Q_RADIO 40 - -/* Directional qualifiers. */ - -#define Q_SRC 1 -#define Q_DST 2 -#define Q_OR 3 -#define Q_AND 4 - -#define Q_DEFAULT 0 -#define Q_UNDEF 255 - -/* ATM types */ -#define A_METAC 22 /* Meta signalling Circuit */ -#define A_BCC 23 /* Broadcast Circuit */ -#define A_OAMF4SC 24 /* Segment OAM F4 Circuit */ -#define A_OAMF4EC 25 /* End-to-End OAM F4 Circuit */ -#define A_SC 26 /* Signalling Circuit*/ -#define A_ILMIC 27 /* ILMI Circuit */ -#define A_OAM 28 /* OAM cells : F4 only */ -#define A_OAMF4 29 /* OAM F4 cells: Segment + End-to-end */ -#define A_LANE 30 /* LANE traffic */ -#define A_LLC 31 /* LLC-encapsulated traffic */ - -/* Based on Q.2931 signalling protocol */ -#define A_SETUP 41 /* Setup message */ -#define A_CALLPROCEED 42 /* Call proceeding message */ -#define A_CONNECT 43 /* Connect message */ -#define A_CONNECTACK 44 /* Connect Ack message */ -#define A_RELEASE 45 /* Release message */ -#define A_RELEASE_DONE 46 /* Release message */ - -/* ATM field types */ -#define A_VPI 51 -#define A_VCI 52 -#define A_PROTOTYPE 53 -#define A_MSGTYPE 54 -#define A_CALLREFTYPE 55 - -#define A_CONNECTMSG 70 /* returns Q.2931 signalling messages for - establishing and destroying switched - virtual connection */ -#define A_METACONNECT 71 /* returns Q.2931 signalling messages for - establishing and destroying predefined - virtual circuits, such as broadcast - circuit, oamf4 segment circuit, oamf4 - end-to-end circuits, ILMI circuits or - connection signalling circuit. */ - -/* MTP2 types */ -#define M_FISU 22 /* FISU */ -#define M_LSSU 23 /* LSSU */ -#define M_MSU 24 /* MSU */ - -/* MTP3 field types */ -#define M_SIO 1 -#define M_OPC 2 -#define M_DPC 3 -#define M_SLS 4 - - -struct slist; - -struct stmt { - int code; - struct slist *jt; /*only for relative jump in block*/ - struct slist *jf; /*only for relative jump in block*/ - bpf_int32 k; -}; - -struct slist { - struct stmt s; - struct slist *next; -}; - -/* - * A bit vector to represent definition sets. We assume TOT_REGISTERS - * is smaller than 8*sizeof(atomset). - */ -typedef bpf_u_int32 atomset; -#define ATOMMASK(n) (1 << (n)) -#define ATOMELEM(d, n) (d & ATOMMASK(n)) - -/* - * An unbounded set. - */ -typedef bpf_u_int32 *uset; - -/* - * Total number of atomic entities, including accumulator (A) and index (X). - * We treat all these guys similarly during flow analysis. - */ -#define N_ATOMS (BPF_MEMWORDS+2) - -struct edge { - int id; - int code; - uset edom; - struct block *succ; - struct block *pred; - struct edge *next; /* link list of incoming edges for a node */ -}; - -struct block { - int id; - struct slist *stmts; /* side effect stmts */ - struct stmt s; /* branch stmt */ - int mark; - int longjt; /* jt branch requires long jump */ - int longjf; /* jf branch requires long jump */ - int level; - int offset; - int sense; - struct edge et; - struct edge ef; - struct block *head; - struct block *link; /* link field used by optimizer */ - uset dom; - uset closure; - struct edge *in_edges; - atomset def, kill; - atomset in_use; - atomset out_use; - int oval; - int val[N_ATOMS]; -}; - -struct arth { - struct block *b; /* protocol checks */ - struct slist *s; /* stmt list */ - int regno; /* virtual register number of result */ -}; - -struct qual { - unsigned char addr; - unsigned char proto; - unsigned char dir; - unsigned char pad; -}; - -struct arth *gen_loadi(int); -struct arth *gen_load(int, struct arth *, int); -struct arth *gen_loadlen(void); -struct arth *gen_neg(struct arth *); -struct arth *gen_arth(int, struct arth *, struct arth *); - -void gen_and(struct block *, struct block *); -void gen_or(struct block *, struct block *); -void gen_not(struct block *); - -struct block *gen_scode(const char *, struct qual); -struct block *gen_ecode(const u_char *, struct qual); -struct block *gen_acode(const u_char *, struct qual); -struct block *gen_mcode(const char *, const char *, int, struct qual); -#ifdef INET6 -struct block *gen_mcode6(const char *, const char *, int, struct qual); -#endif -struct block *gen_ncode(const char *, bpf_u_int32, struct qual); -struct block *gen_proto_abbrev(int); -struct block *gen_relation(int, struct arth *, struct arth *, int); -struct block *gen_less(int); -struct block *gen_greater(int); -struct block *gen_byteop(int, int, int); -struct block *gen_broadcast(int); -struct block *gen_multicast(int); -struct block *gen_inbound(int); - -struct block *gen_vlan(int); -struct block *gen_mpls(int); - -struct block *gen_pppoed(void); -struct block *gen_pppoes(void); - -struct block *gen_atmfield_code(int atmfield, bpf_int32 jvalue, bpf_u_int32 jtype, int reverse); -struct block *gen_atmtype_abbrev(int type); -struct block *gen_atmmulti_abbrev(int type); - -struct block *gen_mtp2type_abbrev(int type); -struct block *gen_mtp3field_code(int mtp3field, bpf_u_int32 jvalue, bpf_u_int32 jtype, int reverse); - -struct block *gen_pf_ifname(const char *); -struct block *gen_pf_rnr(int); -struct block *gen_pf_srnr(int); -struct block *gen_pf_ruleset(char *); -struct block *gen_pf_reason(int); -struct block *gen_pf_action(int); -struct block *gen_pf_dir(int); - -void bpf_optimize(struct block **); -void bpf_error(const char *, ...) - __attribute__((noreturn, format (printf, 1, 2))); - -void finish_parse(struct block *); -char *sdup(const char *); - -struct bpf_insn *icode_to_fcode(struct block *, int *); -int pcap_parse(void); -void lex_init(const char *); -void lex_cleanup(void); -void sappend(struct slist *, struct slist *); - -/* XXX */ -#define JT(b) ((b)->et.succ) -#define JF(b) ((b)->ef.succ) - -extern int no_optimize; diff --git a/contrib/libpcap/grammar.y b/contrib/libpcap/grammar.y deleted file mode 100644 index f9b7cb1..0000000 --- a/contrib/libpcap/grammar.y +++ /dev/null @@ -1,503 +0,0 @@ -%{ -/* - * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - */ -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/grammar.y,v 1.86.2.9 2007/09/12 19:17:25 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#ifdef WIN32 -#include <pcap-stdinc.h> -#else /* WIN32 */ -#include <sys/types.h> -#include <sys/socket.h> -#endif /* WIN32 */ - -#include <stdlib.h> - -#ifndef WIN32 -#if __STDC__ -struct mbuf; -struct rtentry; -#endif - -#include <netinet/in.h> -#endif /* WIN32 */ - -#include <stdio.h> - -#include "pcap-int.h" - -#include "gencode.h" -#ifdef HAVE_NET_PFVAR_H -#include <net/if.h> -#include <net/pfvar.h> -#include <net/if_pflog.h> -#endif -#include <pcap-namedb.h> - -#ifdef HAVE_OS_PROTO_H -#include "os-proto.h" -#endif - -#define QSET(q, p, d, a) (q).proto = (p),\ - (q).dir = (d),\ - (q).addr = (a) - -int n_errors = 0; - -static struct qual qerr = { Q_UNDEF, Q_UNDEF, Q_UNDEF, Q_UNDEF }; - -static void -yyerror(const char *msg) -{ - ++n_errors; - bpf_error("%s", msg); - /* NOTREACHED */ -} - -#ifndef YYBISON -int yyparse(void); - -int -pcap_parse() -{ - return (yyparse()); -} -#endif - -#ifdef HAVE_NET_PFVAR_H -static int -pfreason_to_num(const char *reason) -{ - const char *reasons[] = PFRES_NAMES; - int i; - - for (i = 0; reasons[i]; i++) { - if (pcap_strcasecmp(reason, reasons[i]) == 0) - return (i); - } - bpf_error("unknown PF reason"); - /*NOTREACHED*/ -} - -static int -pfaction_to_num(const char *action) -{ - if (pcap_strcasecmp(action, "pass") == 0 || - pcap_strcasecmp(action, "accept") == 0) - return (PF_PASS); - else if (pcap_strcasecmp(action, "drop") == 0 || - pcap_strcasecmp(action, "block") == 0) - return (PF_DROP); - else { - bpf_error("unknown PF action"); - /*NOTREACHED*/ - } -} -#else /* !HAVE_NET_PFVAR_H */ -static int -pfreason_to_num(const char *reason) -{ - bpf_error("libpcap was compiled on a machine without pf support"); - /*NOTREACHED*/ -} - -static int -pfaction_to_num(const char *action) -{ - bpf_error("libpcap was compiled on a machine without pf support"); - /*NOTREACHED*/ -} -#endif /* HAVE_NET_PFVAR_H */ -%} - -%union { - int i; - bpf_u_int32 h; - u_char *e; - char *s; - struct stmt *stmt; - struct arth *a; - struct { - struct qual q; - int atmfieldtype; - int mtp3fieldtype; - struct block *b; - } blk; - struct block *rblk; -} - -%type <blk> expr id nid pid term rterm qid -%type <blk> head -%type <i> pqual dqual aqual ndaqual -%type <a> arth narth -%type <i> byteop pname pnum relop irelop -%type <blk> and or paren not null prog -%type <rblk> other pfvar -%type <i> atmtype atmmultitype -%type <blk> atmfield -%type <blk> atmfieldvalue atmvalue atmlistvalue -%type <i> mtp2type -%type <blk> mtp3field -%type <blk> mtp3fieldvalue mtp3value mtp3listvalue - - -%token DST SRC HOST GATEWAY -%token NET NETMASK PORT PORTRANGE LESS GREATER PROTO PROTOCHAIN CBYTE -%token ARP RARP IP SCTP TCP UDP ICMP IGMP IGRP PIM VRRP -%token ATALK AARP DECNET LAT SCA MOPRC MOPDL -%token TK_BROADCAST TK_MULTICAST -%token NUM INBOUND OUTBOUND -%token PF_IFNAME PF_RSET PF_RNR PF_SRNR PF_REASON PF_ACTION -%token LINK -%token GEQ LEQ NEQ -%token ID EID HID HID6 AID -%token LSH RSH -%token LEN -%token IPV6 ICMPV6 AH ESP -%token VLAN MPLS -%token PPPOED PPPOES -%token ISO ESIS CLNP ISIS L1 L2 IIH LSP SNP CSNP PSNP -%token STP -%token IPX -%token NETBEUI -%token LANE LLC METAC BCC SC ILMIC OAMF4EC OAMF4SC -%token OAM OAMF4 CONNECTMSG METACONNECT -%token VPI VCI -%token RADIO -%token FISU LSSU MSU -%token SIO OPC DPC SLS - -%type <s> ID -%type <e> EID -%type <e> AID -%type <s> HID HID6 -%type <i> NUM action reason - -%left OR AND -%nonassoc '!' -%left '|' -%left '&' -%left LSH RSH -%left '+' '-' -%left '*' '/' -%nonassoc UMINUS -%% -prog: null expr -{ - finish_parse($2.b); -} - | null - ; -null: /* null */ { $$.q = qerr; } - ; -expr: term - | expr and term { gen_and($1.b, $3.b); $$ = $3; } - | expr and id { gen_and($1.b, $3.b); $$ = $3; } - | expr or term { gen_or($1.b, $3.b); $$ = $3; } - | expr or id { gen_or($1.b, $3.b); $$ = $3; } - ; -and: AND { $$ = $<blk>0; } - ; -or: OR { $$ = $<blk>0; } - ; -id: nid - | pnum { $$.b = gen_ncode(NULL, (bpf_u_int32)$1, - $$.q = $<blk>0.q); } - | paren pid ')' { $$ = $2; } - ; -nid: ID { $$.b = gen_scode($1, $$.q = $<blk>0.q); } - | HID '/' NUM { $$.b = gen_mcode($1, NULL, $3, - $$.q = $<blk>0.q); } - | HID NETMASK HID { $$.b = gen_mcode($1, $3, 0, - $$.q = $<blk>0.q); } - | HID { - /* Decide how to parse HID based on proto */ - $$.q = $<blk>0.q; - $$.b = gen_ncode($1, 0, $$.q); - } - | HID6 '/' NUM { -#ifdef INET6 - $$.b = gen_mcode6($1, NULL, $3, - $$.q = $<blk>0.q); -#else - bpf_error("'ip6addr/prefixlen' not supported " - "in this configuration"); -#endif /*INET6*/ - } - | HID6 { -#ifdef INET6 - $$.b = gen_mcode6($1, 0, 128, - $$.q = $<blk>0.q); -#else - bpf_error("'ip6addr' not supported " - "in this configuration"); -#endif /*INET6*/ - } - | EID { - $$.b = gen_ecode($1, $$.q = $<blk>0.q); - /* - * $1 was allocated by "pcap_ether_aton()", - * so we must free it now that we're done - * with it. - */ - free($1); - } - | AID { - $$.b = gen_acode($1, $$.q = $<blk>0.q); - /* - * $1 was allocated by "pcap_ether_aton()", - * so we must free it now that we're done - * with it. - */ - free($1); - } - | not id { gen_not($2.b); $$ = $2; } - ; -not: '!' { $$ = $<blk>0; } - ; -paren: '(' { $$ = $<blk>0; } - ; -pid: nid - | qid and id { gen_and($1.b, $3.b); $$ = $3; } - | qid or id { gen_or($1.b, $3.b); $$ = $3; } - ; -qid: pnum { $$.b = gen_ncode(NULL, (bpf_u_int32)$1, - $$.q = $<blk>0.q); } - | pid - ; -term: rterm - | not term { gen_not($2.b); $$ = $2; } - ; -head: pqual dqual aqual { QSET($$.q, $1, $2, $3); } - | pqual dqual { QSET($$.q, $1, $2, Q_DEFAULT); } - | pqual aqual { QSET($$.q, $1, Q_DEFAULT, $2); } - | pqual PROTO { QSET($$.q, $1, Q_DEFAULT, Q_PROTO); } - | pqual PROTOCHAIN { QSET($$.q, $1, Q_DEFAULT, Q_PROTOCHAIN); } - | pqual ndaqual { QSET($$.q, $1, Q_DEFAULT, $2); } - ; -rterm: head id { $$ = $2; } - | paren expr ')' { $$.b = $2.b; $$.q = $1.q; } - | pname { $$.b = gen_proto_abbrev($1); $$.q = qerr; } - | arth relop arth { $$.b = gen_relation($2, $1, $3, 0); - $$.q = qerr; } - | arth irelop arth { $$.b = gen_relation($2, $1, $3, 1); - $$.q = qerr; } - | other { $$.b = $1; $$.q = qerr; } - | atmtype { $$.b = gen_atmtype_abbrev($1); $$.q = qerr; } - | atmmultitype { $$.b = gen_atmmulti_abbrev($1); $$.q = qerr; } - | atmfield atmvalue { $$.b = $2.b; $$.q = qerr; } - | mtp2type { $$.b = gen_mtp2type_abbrev($1); $$.q = qerr; } - | mtp3field mtp3value { $$.b = $2.b; $$.q = qerr; } - ; -/* protocol level qualifiers */ -pqual: pname - | { $$ = Q_DEFAULT; } - ; -/* 'direction' qualifiers */ -dqual: SRC { $$ = Q_SRC; } - | DST { $$ = Q_DST; } - | SRC OR DST { $$ = Q_OR; } - | DST OR SRC { $$ = Q_OR; } - | SRC AND DST { $$ = Q_AND; } - | DST AND SRC { $$ = Q_AND; } - ; -/* address type qualifiers */ -aqual: HOST { $$ = Q_HOST; } - | NET { $$ = Q_NET; } - | PORT { $$ = Q_PORT; } - | PORTRANGE { $$ = Q_PORTRANGE; } - ; -/* non-directional address type qualifiers */ -ndaqual: GATEWAY { $$ = Q_GATEWAY; } - ; -pname: LINK { $$ = Q_LINK; } - | IP { $$ = Q_IP; } - | ARP { $$ = Q_ARP; } - | RARP { $$ = Q_RARP; } - | SCTP { $$ = Q_SCTP; } - | TCP { $$ = Q_TCP; } - | UDP { $$ = Q_UDP; } - | ICMP { $$ = Q_ICMP; } - | IGMP { $$ = Q_IGMP; } - | IGRP { $$ = Q_IGRP; } - | PIM { $$ = Q_PIM; } - | VRRP { $$ = Q_VRRP; } - | ATALK { $$ = Q_ATALK; } - | AARP { $$ = Q_AARP; } - | DECNET { $$ = Q_DECNET; } - | LAT { $$ = Q_LAT; } - | SCA { $$ = Q_SCA; } - | MOPDL { $$ = Q_MOPDL; } - | MOPRC { $$ = Q_MOPRC; } - | IPV6 { $$ = Q_IPV6; } - | ICMPV6 { $$ = Q_ICMPV6; } - | AH { $$ = Q_AH; } - | ESP { $$ = Q_ESP; } - | ISO { $$ = Q_ISO; } - | ESIS { $$ = Q_ESIS; } - | ISIS { $$ = Q_ISIS; } - | L1 { $$ = Q_ISIS_L1; } - | L2 { $$ = Q_ISIS_L2; } - | IIH { $$ = Q_ISIS_IIH; } - | LSP { $$ = Q_ISIS_LSP; } - | SNP { $$ = Q_ISIS_SNP; } - | PSNP { $$ = Q_ISIS_PSNP; } - | CSNP { $$ = Q_ISIS_CSNP; } - | CLNP { $$ = Q_CLNP; } - | STP { $$ = Q_STP; } - | IPX { $$ = Q_IPX; } - | NETBEUI { $$ = Q_NETBEUI; } - | RADIO { $$ = Q_RADIO; } - ; -other: pqual TK_BROADCAST { $$ = gen_broadcast($1); } - | pqual TK_MULTICAST { $$ = gen_multicast($1); } - | LESS NUM { $$ = gen_less($2); } - | GREATER NUM { $$ = gen_greater($2); } - | CBYTE NUM byteop NUM { $$ = gen_byteop($3, $2, $4); } - | INBOUND { $$ = gen_inbound(0); } - | OUTBOUND { $$ = gen_inbound(1); } - | VLAN pnum { $$ = gen_vlan($2); } - | VLAN { $$ = gen_vlan(-1); } - | MPLS pnum { $$ = gen_mpls($2); } - | MPLS { $$ = gen_mpls(-1); } - | PPPOED { $$ = gen_pppoed(); } - | PPPOES { $$ = gen_pppoes(); } - | pfvar { $$ = $1; } - ; - -pfvar: PF_IFNAME ID { $$ = gen_pf_ifname($2); } - | PF_RSET ID { $$ = gen_pf_ruleset($2); } - | PF_RNR NUM { $$ = gen_pf_rnr($2); } - | PF_SRNR NUM { $$ = gen_pf_srnr($2); } - | PF_REASON reason { $$ = gen_pf_reason($2); } - | PF_ACTION action { $$ = gen_pf_action($2); } - ; - -reason: NUM { $$ = $1; } - | ID { $$ = pfreason_to_num($1); } - ; - -action: ID { $$ = pfaction_to_num($1); } - ; - -relop: '>' { $$ = BPF_JGT; } - | GEQ { $$ = BPF_JGE; } - | '=' { $$ = BPF_JEQ; } - ; -irelop: LEQ { $$ = BPF_JGT; } - | '<' { $$ = BPF_JGE; } - | NEQ { $$ = BPF_JEQ; } - ; -arth: pnum { $$ = gen_loadi($1); } - | narth - ; -narth: pname '[' arth ']' { $$ = gen_load($1, $3, 1); } - | pname '[' arth ':' NUM ']' { $$ = gen_load($1, $3, $5); } - | arth '+' arth { $$ = gen_arth(BPF_ADD, $1, $3); } - | arth '-' arth { $$ = gen_arth(BPF_SUB, $1, $3); } - | arth '*' arth { $$ = gen_arth(BPF_MUL, $1, $3); } - | arth '/' arth { $$ = gen_arth(BPF_DIV, $1, $3); } - | arth '&' arth { $$ = gen_arth(BPF_AND, $1, $3); } - | arth '|' arth { $$ = gen_arth(BPF_OR, $1, $3); } - | arth LSH arth { $$ = gen_arth(BPF_LSH, $1, $3); } - | arth RSH arth { $$ = gen_arth(BPF_RSH, $1, $3); } - | '-' arth %prec UMINUS { $$ = gen_neg($2); } - | paren narth ')' { $$ = $2; } - | LEN { $$ = gen_loadlen(); } - ; -byteop: '&' { $$ = '&'; } - | '|' { $$ = '|'; } - | '<' { $$ = '<'; } - | '>' { $$ = '>'; } - | '=' { $$ = '='; } - ; -pnum: NUM - | paren pnum ')' { $$ = $2; } - ; -atmtype: LANE { $$ = A_LANE; } - | LLC { $$ = A_LLC; } - | METAC { $$ = A_METAC; } - | BCC { $$ = A_BCC; } - | OAMF4EC { $$ = A_OAMF4EC; } - | OAMF4SC { $$ = A_OAMF4SC; } - | SC { $$ = A_SC; } - | ILMIC { $$ = A_ILMIC; } - ; -atmmultitype: OAM { $$ = A_OAM; } - | OAMF4 { $$ = A_OAMF4; } - | CONNECTMSG { $$ = A_CONNECTMSG; } - | METACONNECT { $$ = A_METACONNECT; } - ; - /* ATM field types quantifier */ -atmfield: VPI { $$.atmfieldtype = A_VPI; } - | VCI { $$.atmfieldtype = A_VCI; } - ; -atmvalue: atmfieldvalue - | relop NUM { $$.b = gen_atmfield_code($<blk>0.atmfieldtype, (bpf_int32)$2, (bpf_u_int32)$1, 0); } - | irelop NUM { $$.b = gen_atmfield_code($<blk>0.atmfieldtype, (bpf_int32)$2, (bpf_u_int32)$1, 1); } - | paren atmlistvalue ')' { $$.b = $2.b; $$.q = qerr; } - ; -atmfieldvalue: NUM { - $$.atmfieldtype = $<blk>0.atmfieldtype; - if ($$.atmfieldtype == A_VPI || - $$.atmfieldtype == A_VCI) - $$.b = gen_atmfield_code($$.atmfieldtype, (bpf_int32) $1, BPF_JEQ, 0); - } - ; -atmlistvalue: atmfieldvalue - | atmlistvalue or atmfieldvalue { gen_or($1.b, $3.b); $$ = $3; } - ; - /* MTP2 types quantifier */ -mtp2type: FISU { $$ = M_FISU; } - | LSSU { $$ = M_LSSU; } - | MSU { $$ = M_MSU; } - ; - /* MTP3 field types quantifier */ -mtp3field: SIO { $$.mtp3fieldtype = M_SIO; } - | OPC { $$.mtp3fieldtype = M_OPC; } - | DPC { $$.mtp3fieldtype = M_DPC; } - | SLS { $$.mtp3fieldtype = M_SLS; } - ; -mtp3value: mtp3fieldvalue - | relop NUM { $$.b = gen_mtp3field_code($<blk>0.mtp3fieldtype, (u_int)$2, (u_int)$1, 0); } - | irelop NUM { $$.b = gen_mtp3field_code($<blk>0.mtp3fieldtype, (u_int)$2, (u_int)$1, 1); } - | paren mtp3listvalue ')' { $$.b = $2.b; $$.q = qerr; } - ; -mtp3fieldvalue: NUM { - $$.mtp3fieldtype = $<blk>0.mtp3fieldtype; - if ($$.mtp3fieldtype == M_SIO || - $$.mtp3fieldtype == M_OPC || - $$.mtp3fieldtype == M_DPC || - $$.mtp3fieldtype == M_SLS ) - $$.b = gen_mtp3field_code($$.mtp3fieldtype, (u_int) $1, BPF_JEQ, 0); - } - ; -mtp3listvalue: mtp3fieldvalue - | mtp3listvalue or mtp3fieldvalue { gen_or($1.b, $3.b); $$ = $3; } - ; -%% diff --git a/contrib/libpcap/inet.c b/contrib/libpcap/inet.c deleted file mode 100644 index 8a44728..0000000 --- a/contrib/libpcap/inet.c +++ /dev/null @@ -1,793 +0,0 @@ -/* -*- Mode: c; tab-width: 8; indent-tabs-mode: 1; c-basic-offset: 8; -*- */ -/* - * Copyright (c) 1994, 1995, 1996, 1997, 1998 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the Computer Systems - * Engineering Group at Lawrence Berkeley Laboratory. - * 4. Neither the name of the University nor of the Laboratory may be used - * to endorse or promote products derived from this software without - * specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/inet.c,v 1.66.2.6 2007/06/11 09:52:04 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#ifdef WIN32 -#include <pcap-stdinc.h> -#else /* WIN32 */ - -#include <sys/param.h> -#ifndef MSDOS -#include <sys/file.h> -#endif -#include <sys/ioctl.h> -#include <sys/socket.h> -#ifdef HAVE_SYS_SOCKIO_H -#include <sys/sockio.h> -#endif - -struct mbuf; /* Squelch compiler warnings on some platforms for */ -struct rtentry; /* declarations in <net/if.h> */ -#include <net/if.h> -#include <netinet/in.h> -#endif /* WIN32 */ - -#include <ctype.h> -#include <errno.h> -#include <memory.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#if !defined(WIN32) && !defined(__BORLANDC__) -#include <unistd.h> -#endif /* !WIN32 && !__BORLANDC__ */ -#ifdef HAVE_LIMITS_H -#include <limits.h> -#else -#define INT_MAX 2147483647 -#endif - -#include "pcap-int.h" - -#ifdef HAVE_OS_PROTO_H -#include "os-proto.h" -#endif - -/* Not all systems have IFF_LOOPBACK */ -#ifdef IFF_LOOPBACK -#define ISLOOPBACK(name, flags) ((flags) & IFF_LOOPBACK) -#else -#define ISLOOPBACK(name, flags) ((name)[0] == 'l' && (name)[1] == 'o' && \ - (isdigit((unsigned char)((name)[2])) || (name)[2] == '\0')) -#endif - -struct sockaddr * -dup_sockaddr(struct sockaddr *sa, size_t sa_length) -{ - struct sockaddr *newsa; - - if ((newsa = malloc(sa_length)) == NULL) - return (NULL); - return (memcpy(newsa, sa, sa_length)); -} - -static int -get_instance(const char *name) -{ - const char *cp, *endcp; - int n; - - if (strcmp(name, "any") == 0) { - /* - * Give the "any" device an artificially high instance - * number, so it shows up after all other non-loopback - * interfaces. - */ - return INT_MAX; - } - - endcp = name + strlen(name); - for (cp = name; cp < endcp && !isdigit((unsigned char)*cp); ++cp) - continue; - - if (isdigit((unsigned char)*cp)) - n = atoi(cp); - else - n = 0; - return (n); -} - -int -add_or_find_if(pcap_if_t **curdev_ret, pcap_if_t **alldevs, const char *name, - u_int flags, const char *description, char *errbuf) -{ - pcap_t *p; - pcap_if_t *curdev, *prevdev, *nextdev; - int this_instance; - - /* - * Is there already an entry in the list for this interface? - */ - for (curdev = *alldevs; curdev != NULL; curdev = curdev->next) { - if (strcmp(name, curdev->name) == 0) - break; /* yes, we found it */ - } - - if (curdev == NULL) { - /* - * No, we didn't find it. - * - * Can we open this interface for live capture? - * - * We do this check so that interfaces that are - * supplied by the interface enumeration mechanism - * we're using but that don't support packet capture - * aren't included in the list. Loopback interfaces - * on Solaris are an example of this; we don't just - * omit loopback interfaces on all platforms because - * you *can* capture on loopback interfaces on some - * OSes. - * - * On OS X, we don't do this check if the device - * name begins with "wlt"; at least some versions - * of OS X offer monitor mode capturing by having - * a separate "monitor mode" device for each wireless - * adapter, rather than by implementing the ioctls - * that {Free,Net,Open,DragonFly}BSD provide. - * Opening that device puts the adapter into monitor - * mode, which, at least for some adapters, causes - * them to deassociate from the network with which - * they're associated. - * - * Instead, we try to open the corresponding "en" - * device (so that we don't end up with, for users - * without sufficient privilege to open capture - * devices, a list of adapters that only includes - * the wlt devices). - */ -#ifdef __APPLE__ - if (strncmp(name, "wlt", 3) == 0) { - char *en_name; - size_t en_name_len; - - /* - * Try to allocate a buffer for the "en" - * device's name. - */ - en_name_len = strlen(name) - 1; - en_name = malloc(en_name_len + 1); - if (en_name == NULL) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "malloc: %s", pcap_strerror(errno)); - return (-1); - } - strcpy(en_name, "en"); - strcat(en_name, name + 3); - p = pcap_open_live(en_name, 68, 0, 0, errbuf); - free(en_name); - } else -#endif /* __APPLE */ - p = pcap_open_live(name, 68, 0, 0, errbuf); - if (p == NULL) { - /* - * No. Don't bother including it. - * Don't treat this as an error, though. - */ - *curdev_ret = NULL; - return (0); - } - pcap_close(p); - - /* - * Yes, we can open it. - * Allocate a new entry. - */ - curdev = malloc(sizeof(pcap_if_t)); - if (curdev == NULL) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "malloc: %s", pcap_strerror(errno)); - return (-1); - } - - /* - * Fill in the entry. - */ - curdev->next = NULL; - curdev->name = strdup(name); - if (curdev->name == NULL) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "malloc: %s", pcap_strerror(errno)); - free(curdev); - return (-1); - } - if (description != NULL) { - /* - * We have a description for this interface. - */ - curdev->description = strdup(description); - if (curdev->description == NULL) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "malloc: %s", pcap_strerror(errno)); - free(curdev->name); - free(curdev); - return (-1); - } - } else { - /* - * We don't. - */ - curdev->description = NULL; - } - curdev->addresses = NULL; /* list starts out as empty */ - curdev->flags = 0; - if (ISLOOPBACK(name, flags)) - curdev->flags |= PCAP_IF_LOOPBACK; - - /* - * Add it to the list, in the appropriate location. - * First, get the instance number of this interface. - */ - this_instance = get_instance(name); - - /* - * Now look for the last interface with an instance number - * less than or equal to the new interface's instance - * number - except that non-loopback interfaces are - * arbitrarily treated as having interface numbers less - * than those of loopback interfaces, so the loopback - * interfaces are put at the end of the list. - * - * We start with "prevdev" being NULL, meaning we're before - * the first element in the list. - */ - prevdev = NULL; - for (;;) { - /* - * Get the interface after this one. - */ - if (prevdev == NULL) { - /* - * The next element is the first element. - */ - nextdev = *alldevs; - } else - nextdev = prevdev->next; - - /* - * Are we at the end of the list? - */ - if (nextdev == NULL) { - /* - * Yes - we have to put the new entry - * after "prevdev". - */ - break; - } - - /* - * Is the new interface a non-loopback interface - * and the next interface a loopback interface? - */ - if (!(curdev->flags & PCAP_IF_LOOPBACK) && - (nextdev->flags & PCAP_IF_LOOPBACK)) { - /* - * Yes, we should put the new entry - * before "nextdev", i.e. after "prevdev". - */ - break; - } - - /* - * Is the new interface's instance number less - * than the next interface's instance number, - * and is it the case that the new interface is a - * non-loopback interface or the next interface is - * a loopback interface? - * - * (The goal of both loopback tests is to make - * sure that we never put a loopback interface - * before any non-loopback interface and that we - * always put a non-loopback interface before all - * loopback interfaces.) - */ - if (this_instance < get_instance(nextdev->name) && - (!(curdev->flags & PCAP_IF_LOOPBACK) || - (nextdev->flags & PCAP_IF_LOOPBACK))) { - /* - * Yes - we should put the new entry - * before "nextdev", i.e. after "prevdev". - */ - break; - } - - prevdev = nextdev; - } - - /* - * Insert before "nextdev". - */ - curdev->next = nextdev; - - /* - * Insert after "prevdev" - unless "prevdev" is null, - * in which case this is the first interface. - */ - if (prevdev == NULL) { - /* - * This is the first interface. Pass back a - * pointer to it, and put "curdev" before - * "nextdev". - */ - *alldevs = curdev; - } else - prevdev->next = curdev; - } - - *curdev_ret = curdev; - return (0); -} - -int -add_addr_to_iflist(pcap_if_t **alldevs, const char *name, u_int flags, - struct sockaddr *addr, size_t addr_size, - struct sockaddr *netmask, size_t netmask_size, - struct sockaddr *broadaddr, size_t broadaddr_size, - struct sockaddr *dstaddr, size_t dstaddr_size, - char *errbuf) -{ - pcap_if_t *curdev; - pcap_addr_t *curaddr, *prevaddr, *nextaddr; - - if (add_or_find_if(&curdev, alldevs, name, flags, NULL, errbuf) == -1) { - /* - * Error - give up. - */ - return (-1); - } - if (curdev == NULL) { - /* - * Device wasn't added because it can't be opened. - * Not a fatal error. - */ - return (0); - } - - /* - * "curdev" is an entry for this interface; add an entry for this - * address to its list of addresses. - * - * Allocate the new entry and fill it in. - */ - curaddr = malloc(sizeof(pcap_addr_t)); - if (curaddr == NULL) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "malloc: %s", pcap_strerror(errno)); - return (-1); - } - - curaddr->next = NULL; - if (addr != NULL) { - curaddr->addr = dup_sockaddr(addr, addr_size); - if (curaddr->addr == NULL) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "malloc: %s", pcap_strerror(errno)); - free(curaddr); - return (-1); - } - } else - curaddr->addr = NULL; - - if (netmask != NULL) { - curaddr->netmask = dup_sockaddr(netmask, netmask_size); - if (curaddr->netmask == NULL) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "malloc: %s", pcap_strerror(errno)); - if (curaddr->addr != NULL) - free(curaddr->addr); - free(curaddr); - return (-1); - } - } else - curaddr->netmask = NULL; - - if (broadaddr != NULL) { - curaddr->broadaddr = dup_sockaddr(broadaddr, broadaddr_size); - if (curaddr->broadaddr == NULL) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "malloc: %s", pcap_strerror(errno)); - if (curaddr->netmask != NULL) - free(curaddr->netmask); - if (curaddr->addr != NULL) - free(curaddr->addr); - free(curaddr); - return (-1); - } - } else - curaddr->broadaddr = NULL; - - if (dstaddr != NULL) { - curaddr->dstaddr = dup_sockaddr(dstaddr, dstaddr_size); - if (curaddr->dstaddr == NULL) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "malloc: %s", pcap_strerror(errno)); - if (curaddr->broadaddr != NULL) - free(curaddr->broadaddr); - if (curaddr->netmask != NULL) - free(curaddr->netmask); - if (curaddr->addr != NULL) - free(curaddr->addr); - free(curaddr); - return (-1); - } - } else - curaddr->dstaddr = NULL; - - /* - * Find the end of the list of addresses. - */ - for (prevaddr = curdev->addresses; prevaddr != NULL; prevaddr = nextaddr) { - nextaddr = prevaddr->next; - if (nextaddr == NULL) { - /* - * This is the end of the list. - */ - break; - } - } - - if (prevaddr == NULL) { - /* - * The list was empty; this is the first member. - */ - curdev->addresses = curaddr; - } else { - /* - * "prevaddr" is the last member of the list; append - * this member to it. - */ - prevaddr->next = curaddr; - } - - return (0); -} - -int -pcap_add_if(pcap_if_t **devlist, const char *name, u_int flags, - const char *description, char *errbuf) -{ - pcap_if_t *curdev; - - return (add_or_find_if(&curdev, devlist, name, flags, description, - errbuf)); -} - - -/* - * Free a list of interfaces. - */ -void -pcap_freealldevs(pcap_if_t *alldevs) -{ - pcap_if_t *curdev, *nextdev; - pcap_addr_t *curaddr, *nextaddr; - - for (curdev = alldevs; curdev != NULL; curdev = nextdev) { - nextdev = curdev->next; - - /* - * Free all addresses. - */ - for (curaddr = curdev->addresses; curaddr != NULL; curaddr = nextaddr) { - nextaddr = curaddr->next; - if (curaddr->addr) - free(curaddr->addr); - if (curaddr->netmask) - free(curaddr->netmask); - if (curaddr->broadaddr) - free(curaddr->broadaddr); - if (curaddr->dstaddr) - free(curaddr->dstaddr); - free(curaddr); - } - - /* - * Free the name string. - */ - free(curdev->name); - - /* - * Free the description string, if any. - */ - if (curdev->description != NULL) - free(curdev->description); - - /* - * Free the interface. - */ - free(curdev); - } -} - -#if !defined(WIN32) && !defined(MSDOS) - -/* - * Return the name of a network interface attached to the system, or NULL - * if none can be found. The interface must be configured up; the - * lowest unit number is preferred; loopback is ignored. - */ -char * -pcap_lookupdev(errbuf) - register char *errbuf; -{ - pcap_if_t *alldevs; -/* for old BSD systems, including bsdi3 */ -#ifndef IF_NAMESIZE -#define IF_NAMESIZE IFNAMSIZ -#endif - static char device[IF_NAMESIZE + 1]; - char *ret; - - if (pcap_findalldevs(&alldevs, errbuf) == -1) - return (NULL); - - if (alldevs == NULL || (alldevs->flags & PCAP_IF_LOOPBACK)) { - /* - * There are no devices on the list, or the first device - * on the list is a loopback device, which means there - * are no non-loopback devices on the list. This means - * we can't return any device. - * - * XXX - why not return a loopback device? If we can't - * capture on it, it won't be on the list, and if it's - * on the list, there aren't any non-loopback devices, - * so why not just supply it as the default device? - */ - (void)strlcpy(errbuf, "no suitable device found", - PCAP_ERRBUF_SIZE); - ret = NULL; - } else { - /* - * Return the name of the first device on the list. - */ - (void)strlcpy(device, alldevs->name, sizeof(device)); - ret = device; - } - - pcap_freealldevs(alldevs); - return (ret); -} - -int -pcap_lookupnet(device, netp, maskp, errbuf) - register const char *device; - register bpf_u_int32 *netp, *maskp; - register char *errbuf; -{ - register int fd; - register struct sockaddr_in *sin4; - struct ifreq ifr; - - /* - * The pseudo-device "any" listens on all interfaces and therefore - * has the network address and -mask "0.0.0.0" therefore catching - * all traffic. Using NULL for the interface is the same as "any". - */ - if (!device || strcmp(device, "any") == 0 -#ifdef HAVE_DAG_API - || strstr(device, "dag") != NULL -#endif -#ifdef HAVE_SEPTEL_API - || strstr(device, "septel") != NULL -#endif - ) { - *netp = *maskp = 0; - return 0; - } - - fd = socket(AF_INET, SOCK_DGRAM, 0); - if (fd < 0) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, "socket: %s", - pcap_strerror(errno)); - return (-1); - } - memset(&ifr, 0, sizeof(ifr)); -#ifdef linux - /* XXX Work around Linux kernel bug */ - ifr.ifr_addr.sa_family = AF_INET; -#endif - (void)strncpy(ifr.ifr_name, device, sizeof(ifr.ifr_name)); - if (ioctl(fd, SIOCGIFADDR, (char *)&ifr) < 0) { - if (errno == EADDRNOTAVAIL) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "%s: no IPv4 address assigned", device); - } else { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "SIOCGIFADDR: %s: %s", - device, pcap_strerror(errno)); - } - (void)close(fd); - return (-1); - } - sin4 = (struct sockaddr_in *)&ifr.ifr_addr; - *netp = sin4->sin_addr.s_addr; - if (ioctl(fd, SIOCGIFNETMASK, (char *)&ifr) < 0) { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "SIOCGIFNETMASK: %s: %s", device, pcap_strerror(errno)); - (void)close(fd); - return (-1); - } - (void)close(fd); - *maskp = sin4->sin_addr.s_addr; - if (*maskp == 0) { - if (IN_CLASSA(*netp)) - *maskp = IN_CLASSA_NET; - else if (IN_CLASSB(*netp)) - *maskp = IN_CLASSB_NET; - else if (IN_CLASSC(*netp)) - *maskp = IN_CLASSC_NET; - else { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "inet class for 0x%x unknown", *netp); - return (-1); - } - } - *netp &= *maskp; - return (0); -} - -#elif defined(WIN32) - -/* - * Return the name of a network interface attached to the system, or NULL - * if none can be found. The interface must be configured up; the - * lowest unit number is preferred; loopback is ignored. - */ -char * -pcap_lookupdev(errbuf) - register char *errbuf; -{ - DWORD dwVersion; - DWORD dwWindowsMajorVersion; - dwVersion = GetVersion(); /* get the OS version */ - dwWindowsMajorVersion = (DWORD)(LOBYTE(LOWORD(dwVersion))); - - if (dwVersion >= 0x80000000 && dwWindowsMajorVersion >= 4) { - /* - * Windows 95, 98, ME. - */ - ULONG NameLength = 8192; - static char AdaptersName[8192]; - - if (PacketGetAdapterNames(AdaptersName,&NameLength) ) - return (AdaptersName); - else - return NULL; - } else { - /* - * Windows NT (NT 4.0, W2K, WXP). Convert the names to UNICODE for backward compatibility - */ - ULONG NameLength = 8192; - static WCHAR AdaptersName[8192]; - char *tAstr; - WCHAR *tUstr; - WCHAR *TAdaptersName = (WCHAR*)malloc(8192 * sizeof(WCHAR)); - int NAdapts = 0; - - if(TAdaptersName == NULL) - { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, "memory allocation failure"); - return NULL; - } - - if ( !PacketGetAdapterNames((PTSTR)TAdaptersName,&NameLength) ) - { - (void)snprintf(errbuf, PCAP_ERRBUF_SIZE, - "PacketGetAdapterNames: %s", - pcap_win32strerror()); - free(TAdaptersName); - return NULL; - } - - - tAstr = (char*)TAdaptersName; - tUstr = (WCHAR*)AdaptersName; - - /* - * Convert and copy the device names - */ - while(sscanf(tAstr, "%S", tUstr) > 0) - { - tAstr += strlen(tAstr) + 1; - tUstr += wcslen(tUstr) + 1; - NAdapts ++; - } - - tAstr++; - *tUstr = 0; - tUstr++; - - /* - * Copy the descriptions - */ - while(NAdapts--) - { - strcpy((char*)tUstr, tAstr); - (char*)tUstr += strlen(tAstr) + 1;; - tAstr += strlen(tAstr) + 1; - } - - free(TAdaptersName); - return (char *)(AdaptersName); - } -} - - -int -pcap_lookupnet(device, netp, maskp, errbuf) - register const char *device; - register bpf_u_int32 *netp, *maskp; - register char *errbuf; -{ - /* - * We need only the first IPv4 address, so we must scan the array returned by PacketGetNetInfo() - * in order to skip non IPv4 (i.e. IPv6 addresses) - */ - npf_if_addr if_addrs[MAX_NETWORK_ADDRESSES]; - LONG if_addr_size = 1; - struct sockaddr_in *t_addr; - unsigned int i; - - if (!PacketGetNetInfoEx((void *)device, if_addrs, &if_addr_size)) { - *netp = *maskp = 0; - return (0); - } - - for(i=0; i<MAX_NETWORK_ADDRESSES; i++) - { - if(if_addrs[i].IPAddress.ss_family == AF_INET) - { - t_addr = (struct sockaddr_in *) &(if_addrs[i].IPAddress); - *netp = t_addr->sin_addr.S_un.S_addr; - t_addr = (struct sockaddr_in *) &(if_addrs[i].SubnetMask); - *maskp = t_addr->sin_addr.S_un.S_addr; - - *netp &= *maskp; - return (0); - } - - } - - *netp = *maskp = 0; - return (0); -} - -#endif /* !WIN32 && !MSDOS */ diff --git a/contrib/libpcap/install-sh b/contrib/libpcap/install-sh deleted file mode 100755 index ebc6691..0000000 --- a/contrib/libpcap/install-sh +++ /dev/null @@ -1,250 +0,0 @@ -#! /bin/sh -# -# install - install a program, script, or datafile -# This comes from X11R5 (mit/util/scripts/install.sh). -# -# Copyright 1991 by the Massachusetts Institute of Technology -# -# Permission to use, copy, modify, distribute, and sell this software and its -# documentation for any purpose is hereby granted without fee, provided that -# the above copyright notice appear in all copies and that both that -# copyright notice and this permission notice appear in supporting -# documentation, and that the name of M.I.T. not be used in advertising or -# publicity pertaining to distribution of the software without specific, -# written prior permission. M.I.T. makes no representations about the -# suitability of this software for any purpose. It is provided "as is" -# without express or implied warranty. -# -# Calling this script install-sh is preferred over install.sh, to prevent -# `make' implicit rules from creating a file called install from it -# when there is no Makefile. -# -# This script is compatible with the BSD install script, but was written -# from scratch. It can only install one file at a time, a restriction -# shared with many OS's install programs. - - -# set DOITPROG to echo to test this script - -# Don't use :- since 4.3BSD and earlier shells don't like it. -doit="${DOITPROG-}" - - -# put in absolute paths if you don't have them in your path; or use env. vars. - -mvprog="${MVPROG-mv}" -cpprog="${CPPROG-cp}" -chmodprog="${CHMODPROG-chmod}" -chownprog="${CHOWNPROG-chown}" -chgrpprog="${CHGRPPROG-chgrp}" -stripprog="${STRIPPROG-strip}" -rmprog="${RMPROG-rm}" -mkdirprog="${MKDIRPROG-mkdir}" - -transformbasename="" -transform_arg="" -instcmd="$mvprog" -chmodcmd="$chmodprog 0755" -chowncmd="" -chgrpcmd="" -stripcmd="" -rmcmd="$rmprog -f" -mvcmd="$mvprog" -src="" -dst="" -dir_arg="" - -while [ x"$1" != x ]; do - case $1 in - -c) instcmd="$cpprog" - shift - continue;; - - -d) dir_arg=true - shift - continue;; - - -m) chmodcmd="$chmodprog $2" - shift - shift - continue;; - - -o) chowncmd="$chownprog $2" - shift - shift - continue;; - - -g) chgrpcmd="$chgrpprog $2" - shift - shift - continue;; - - -s) stripcmd="$stripprog" - shift - continue;; - - -t=*) transformarg=`echo $1 | sed 's/-t=//'` - shift - continue;; - - -b=*) transformbasename=`echo $1 | sed 's/-b=//'` - shift - continue;; - - *) if [ x"$src" = x ] - then - src=$1 - else - # this colon is to work around a 386BSD /bin/sh bug - : - dst=$1 - fi - shift - continue;; - esac -done - -if [ x"$src" = x ] -then - echo "install: no input file specified" - exit 1 -else - true -fi - -if [ x"$dir_arg" != x ]; then - dst=$src - src="" - - if [ -d $dst ]; then - instcmd=: - else - instcmd=mkdir - fi -else - -# Waiting for this to be detected by the "$instcmd $src $dsttmp" command -# might cause directories to be created, which would be especially bad -# if $src (and thus $dsttmp) contains '*'. - - if [ -f $src -o -d $src ] - then - true - else - echo "install: $src does not exist" - exit 1 - fi - - if [ x"$dst" = x ] - then - echo "install: no destination specified" - exit 1 - else - true - fi - -# If destination is a directory, append the input filename; if your system -# does not like double slashes in filenames, you may need to add some logic - - if [ -d $dst ] - then - dst="$dst"/`basename $src` - else - true - fi -fi - -## this sed command emulates the dirname command -dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'` - -# Make sure that the destination directory exists. -# this part is taken from Noah Friedman's mkinstalldirs script - -# Skip lots of stat calls in the usual case. -if [ ! -d "$dstdir" ]; then -defaultIFS=' -' -IFS="${IFS-${defaultIFS}}" - -oIFS="${IFS}" -# Some sh's can't handle IFS=/ for some reason. -IFS='%' -set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'` -IFS="${oIFS}" - -pathcomp='' - -while [ $# -ne 0 ] ; do - pathcomp="${pathcomp}${1}" - shift - - if [ ! -d "${pathcomp}" ] ; - then - $mkdirprog "${pathcomp}" - else - true - fi - - pathcomp="${pathcomp}/" -done -fi - -if [ x"$dir_arg" != x ] -then - $doit $instcmd $dst && - - if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi && - if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi && - if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi && - if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi -else - -# If we're going to rename the final executable, determine the name now. - - if [ x"$transformarg" = x ] - then - dstfile=`basename $dst` - else - dstfile=`basename $dst $transformbasename | - sed $transformarg`$transformbasename - fi - -# don't allow the sed command to completely eliminate the filename - - if [ x"$dstfile" = x ] - then - dstfile=`basename $dst` - else - true - fi - -# Make a temp file name in the proper directory. - - dsttmp=$dstdir/#inst.$$# - -# Move or copy the file name to the temp name - - $doit $instcmd $src $dsttmp && - - trap "rm -f ${dsttmp}" 0 && - -# and set any options; do chmod last to preserve setuid bits - -# If any of these fail, we abort the whole thing. If we want to -# ignore errors from any of these, just make sure not to ignore -# errors from the above "$doit $instcmd $src $dsttmp" command. - - if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi && - if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi && - if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi && - if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi && - -# Now rename the file to the real destination. - - $doit $rmcmd -f $dstdir/$dstfile && - $doit $mvcmd $dsttmp $dstdir/$dstfile - -fi && - - -exit 0 diff --git a/contrib/libpcap/lbl/gnuc.h b/contrib/libpcap/lbl/gnuc.h deleted file mode 100644 index 37d0094..0000000 --- a/contrib/libpcap/lbl/gnuc.h +++ /dev/null @@ -1,43 +0,0 @@ -/* @(#) $Header: /tcpdump/master/libpcap/lbl/gnuc.h,v 1.3.1.1 1999/10/07 23:46:41 mcr Exp $ (LBL) */ - -/* Define __P() macro, if necessary */ -#ifndef __P -#if __STDC__ -#define __P(protos) protos -#else -#define __P(protos) () -#endif -#endif - -/* inline foo */ -#ifdef __GNUC__ -#define inline __inline -#else -#define inline -#endif - -/* - * Handle new and old "dead" routine prototypes - * - * For example: - * - * __dead void foo(void) __attribute__((volatile)); - * - */ -#ifdef __GNUC__ -#ifndef __dead -#define __dead volatile -#endif -#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) -#ifndef __attribute__ -#define __attribute__(args) -#endif -#endif -#else -#ifndef __dead -#define __dead -#endif -#ifndef __attribute__ -#define __attribute__(args) -#endif -#endif diff --git a/contrib/libpcap/lbl/os-aix4.h b/contrib/libpcap/lbl/os-aix4.h deleted file mode 100644 index f7edb62..0000000 --- a/contrib/libpcap/lbl/os-aix4.h +++ /dev/null @@ -1,25 +0,0 @@ -/* - * Copyright (c) 1993, 1994, 1995, 1996, 1997 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * @(#) $Header: /tcpdump/master/libpcap/lbl/os-aix4.h,v 1.1 2002/06/01 09:37:40 guy Exp $ - */ - -/* Prototypes missing in AIX 4.x */ -int ffs(int i); diff --git a/contrib/libpcap/lbl/os-hpux11.h b/contrib/libpcap/lbl/os-hpux11.h deleted file mode 100644 index 55a79e5..0000000 --- a/contrib/libpcap/lbl/os-hpux11.h +++ /dev/null @@ -1,25 +0,0 @@ -/* - * Copyright (c) 1993, 1994, 1995, 1996, 1997 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * @(#) $Header: /tcpdump/master/libpcap/lbl/os-hpux11.h,v 1.1 2002/06/01 09:37:41 guy Exp $ - */ - -/* Prototypes missing in HP-UX 11.x */ -int ffs(int i); diff --git a/contrib/libpcap/lbl/os-osf4.h b/contrib/libpcap/lbl/os-osf4.h deleted file mode 100644 index abb207e..0000000 --- a/contrib/libpcap/lbl/os-osf4.h +++ /dev/null @@ -1,28 +0,0 @@ -/* - * Copyright (c) 1993, 1994, 1995, 1996, 1997 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * @(#) $Header: /tcpdump/master/libpcap/lbl/os-osf4.h,v 1.2 2000/12/22 11:51:33 guy Exp $ (LBL) - */ - -/* Prototypes missing in Digital UNIX 4.x */ -int snprintf(char *, size_t, const char *, ...); -int vsnprintf(char *, size_t, const char *, va_list); -int pfopen(char *, int); - diff --git a/contrib/libpcap/lbl/os-osf5.h b/contrib/libpcap/lbl/os-osf5.h deleted file mode 100644 index 338caa8..0000000 --- a/contrib/libpcap/lbl/os-osf5.h +++ /dev/null @@ -1,32 +0,0 @@ -/* - * Copyright (c) 1993, 1994, 1995, 1996, 1997 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * @(#) $Header: /tcpdump/master/libpcap/lbl/os-osf5.h,v 1.2 2002/08/02 03:24:15 guy Exp $ (LBL) - */ - -/* - * Prototypes missing in Tru64 UNIX 5.x - * XXX - "snprintf()" and "vsnprintf()" aren't missing, but you have to - * #define the right value to get them defined by <stdio.h>. - */ -int snprintf(char *, size_t, const char *, ...); -int vsnprintf(char *, size_t, const char *, va_list); -int pfopen(char *, int); - diff --git a/contrib/libpcap/lbl/os-solaris2.h b/contrib/libpcap/lbl/os-solaris2.h deleted file mode 100644 index 5de2c6e..0000000 --- a/contrib/libpcap/lbl/os-solaris2.h +++ /dev/null @@ -1,26 +0,0 @@ -/* - * Copyright (c) 1993, 1994, 1995, 1996, 1997 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * @(#) $Header: /tcpdump/master/libpcap/lbl/os-solaris2.h,v 1.19 2000/10/11 04:02:52 guy Exp $ (LBL) - */ - -/* Prototypes missing in SunOS 5 */ -char *strerror(int); -int snprintf(char *, size_t, const char *, ...); diff --git a/contrib/libpcap/lbl/os-sunos4.h b/contrib/libpcap/lbl/os-sunos4.h deleted file mode 100644 index fd8f508..0000000 --- a/contrib/libpcap/lbl/os-sunos4.h +++ /dev/null @@ -1,215 +0,0 @@ -/* - * Copyright (c) 1989, 1990, 1993, 1994, 1995, 1996 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * @(#) $Header: /tcpdump/master/libpcap/lbl/os-sunos4.h,v 1.32.1.1 1999/10/07 23:46:41 mcr Exp $ (LBL) - */ - -/* Prototypes missing in SunOS 4 */ -#ifdef FILE -int _filbuf(FILE *); -int _flsbuf(u_char, FILE *); -int fclose(FILE *); -int fflush(FILE *); -int fgetc(FILE *); -int fprintf(FILE *, const char *, ...); -int fputc(int, FILE *); -int fputs(const char *, FILE *); -u_int fread(void *, u_int, u_int, FILE *); -int fseek(FILE *, long, int); -u_int fwrite(const void *, u_int, u_int, FILE *); -int pclose(FILE *); -void rewind(FILE *); -void setbuf(FILE *, char *); -int setlinebuf(FILE *); -int ungetc(int, FILE *); -int vfprintf(FILE *, const char *, ...); -int vprintf(const char *, ...); -#endif - -#if __GNUC__ <= 1 -int read(int, char *, u_int); -int write(int, char *, u_int); -#endif - -long a64l(const char *); -#ifdef __STDC__ -struct sockaddr; -#endif -int accept(int, struct sockaddr *, int *); -int bind(int, struct sockaddr *, int); -int bcmp(const void *, const void *, u_int); -void bcopy(const void *, void *, u_int); -void bzero(void *, int); -int chroot(const char *); -int close(int); -void closelog(void); -int connect(int, struct sockaddr *, int); -char *crypt(const char *, const char *); -int daemon(int, int); -int fchmod(int, int); -int fchown(int, int, int); -void endgrent(void); -void endpwent(void); -void endservent(void); -#ifdef __STDC__ -struct ether_addr; -#endif -struct ether_addr *ether_aton(const char *); -int flock(int, int); -#ifdef __STDC__ -struct stat; -#endif -int fstat(int, struct stat *); -#ifdef __STDC__ -struct statfs; -#endif -int fstatfs(int, struct statfs *); -int fsync(int); -#ifdef __STDC__ -struct timeb; -#endif -int ftime(struct timeb *); -int ftruncate(int, off_t); -int getdtablesize(void); -long gethostid(void); -int gethostname(char *, int); -int getopt(int, char * const *, const char *); -int getpagesize(void); -char *getpass(char *); -int getpeername(int, struct sockaddr *, int *); -int getpriority(int, int); -#ifdef __STDC__ -struct rlimit; -#endif -int getrlimit(int, struct rlimit *); -int getsockname(int, struct sockaddr *, int *); -int getsockopt(int, int, int, char *, int *); -#ifdef __STDC__ -struct timeval; -struct timezone; -#endif -int gettimeofday(struct timeval *, struct timezone *); -char *getusershell(void); -char *getwd(char *); -int initgroups(const char *, int); -int ioctl(int, int, caddr_t); -int iruserok(u_long, int, char *, char *); -int isatty(int); -int killpg(int, int); -int listen(int, int); -#ifdef __STDC__ -struct utmp; -#endif -void login(struct utmp *); -int logout(const char *); -off_t lseek(int, off_t, int); -int lstat(const char *, struct stat *); -int mkstemp(char *); -char *mktemp(char *); -int munmap(caddr_t, int); -void openlog(const char *, int, int); -void perror(const char *); -int printf(const char *, ...); -int puts(const char *); -long random(void); -int readlink(const char *, char *, int); -#ifdef __STDC__ -struct iovec; -#endif -int readv(int, struct iovec *, int); -int recv(int, char *, u_int, int); -int recvfrom(int, char *, u_int, int, struct sockaddr *, int *); -int rename(const char *, const char *); -int rcmd(char **, u_short, char *, char *, char *, int *); -int rresvport(int *); -int send(int, char *, u_int, int); -int sendto(int, char *, u_int, int, struct sockaddr *, int); -int setenv(const char *, const char *, int); -int seteuid(int); -int setpriority(int, int, int); -int select(int, fd_set *, fd_set *, fd_set *, struct timeval *); -int setpgrp(int, int); -void setpwent(void); -int setrlimit(int, struct rlimit *); -void setservent(int); -int setsockopt(int, int, int, char *, int); -int shutdown(int, int); -int sigblock(int); -void (*signal (int, void (*) (int))) (int); -int sigpause(int); -int sigsetmask(int); -#ifdef __STDC__ -struct sigvec; -#endif -int sigvec(int, struct sigvec *, struct sigvec*); -int snprintf(char *, size_t, const char *, ...); -int socket(int, int, int); -int socketpair(int, int, int, int *); -int symlink(const char *, const char *); -void srandom(int); -int sscanf(char *, const char *, ...); -int stat(const char *, struct stat *); -int statfs(char *, struct statfs *); -char *strerror(int); -int strcasecmp(const char *, const char *); -#ifdef __STDC__ -struct tm; -#endif -int strftime(char *, int, char *, struct tm *); -int strncasecmp(const char *, const char *, int); -long strtol(const char *, char **, int); -void sync(void); -void syslog(int, const char *, ...); -int system(const char *); -long tell(int); -time_t time(time_t *); -char *timezone(int, int); -int tolower(int); -int toupper(int); -int truncate(char *, off_t); -void unsetenv(const char *); -int vfork(void); -int vsprintf(char *, const char *, ...); -int writev(int, struct iovec *, int); -#ifdef __STDC__ -struct rusage; -#endif -int utimes(const char *, struct timeval *); -#if __GNUC__ <= 1 -int wait(int *); -pid_t wait3(int *, int, struct rusage *); -#endif - -/* Ugly signal hacking */ -#ifdef SIG_ERR -#undef SIG_ERR -#define SIG_ERR (void (*)(int))-1 -#undef SIG_DFL -#define SIG_DFL (void (*)(int))0 -#undef SIG_IGN -#define SIG_IGN (void (*)(int))1 - -#ifdef KERNEL -#undef SIG_CATCH -#define SIG_CATCH (void (*)(int))2 -#endif -#undef SIG_HOLD -#define SIG_HOLD (void (*)(int))3 -#endif diff --git a/contrib/libpcap/lbl/os-ultrix4.h b/contrib/libpcap/lbl/os-ultrix4.h deleted file mode 100644 index bd931b3..0000000 --- a/contrib/libpcap/lbl/os-ultrix4.h +++ /dev/null @@ -1,39 +0,0 @@ -/* - * Copyright (c) 1990, 1993, 1994, 1995, 1996 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * @(#) $Header: /tcpdump/master/libpcap/lbl/os-ultrix4.h,v 1.19.1.1 1999/10/07 23:46:41 mcr Exp $ (LBL) - */ - -/* Prototypes missing in Ultrix 4 */ -int bcmp(const char *, const char *, u_int); -void bcopy(const void *, void *, u_int); -void bzero(void *, u_int); -void endservent(void); -int getopt(int, char * const *, const char *); -#ifdef __STDC__ -struct timeval; -struct timezone; -#endif -int gettimeofday(struct timeval *, struct timezone *); -int ioctl(int, int, caddr_t); -int pfopen(char *, int); -int setlinebuf(FILE *); -int socket(int, int, int); -int strcasecmp(const char *, const char *); diff --git a/contrib/libpcap/llc.h b/contrib/libpcap/llc.h deleted file mode 100644 index ffd3a60..0000000 --- a/contrib/libpcap/llc.h +++ /dev/null @@ -1,69 +0,0 @@ -/* - * Copyright (c) 1993, 1994, 1997 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * @(#) $Header: /tcpdump/master/libpcap/llc.h,v 1.2 2001/01/28 09:44:50 guy Exp $ (LBL) - */ - -/* - * 802.2 LLC SAP values. - */ - -#ifndef LLCSAP_NULL -#define LLCSAP_NULL 0x00 -#endif -#ifndef LLCSAP_GLOBAL -#define LLCSAP_GLOBAL 0xff -#endif -#ifndef LLCSAP_8021B -#define LLCSAP_8021B_I 0x02 -#endif -#ifndef LLCSAP_8021B -#define LLCSAP_8021B_G 0x03 -#endif -#ifndef LLCSAP_IP -#define LLCSAP_IP 0x06 -#endif -#ifndef LLCSAP_PROWAYNM -#define LLCSAP_PROWAYNM 0x0e -#endif -#ifndef LLCSAP_8021D -#define LLCSAP_8021D 0x42 -#endif -#ifndef LLCSAP_RS511 -#define LLCSAP_RS511 0x4e -#endif -#ifndef LLCSAP_ISO8208 -#define LLCSAP_ISO8208 0x7e -#endif -#ifndef LLCSAP_PROWAY -#define LLCSAP_PROWAY 0x8e -#endif -#ifndef LLCSAP_SNAP -#define LLCSAP_SNAP 0xaa -#endif -#ifndef LLCSAP_IPX -#define LLCSAP_IPX 0xe0 -#endif -#ifndef LLCSAP_NETBEUI -#define LLCSAP_NETBEUI 0xf0 -#endif -#ifndef LLCSAP_ISONS -#define LLCSAP_ISONS 0xfe -#endif diff --git a/contrib/libpcap/mkdep b/contrib/libpcap/mkdep deleted file mode 100755 index 2a9c221..0000000 --- a/contrib/libpcap/mkdep +++ /dev/null @@ -1,109 +0,0 @@ -#!/bin/sh - -# -# Copyright (c) 1994, 1996 -# The Regents of the University of California. All rights reserved. -# -# Redistribution and use in source and binary forms are permitted -# provided that this notice is preserved and that due credit is given -# to the University of California at Berkeley. The name of the University -# may not be used to endorse or promote products derived from this -# software without specific prior written permission. This software -# is provided ``as is'' without express or implied warranty. -# -# @(#)mkdep.sh 5.11 (Berkeley) 5/5/88 -# - -PATH=/bin:/usr/bin:/usr/ucb:/usr/local:/usr/local/bin -export PATH - -MAKE=Makefile # default makefile name is "Makefile" -CC=cc # default C compiler is "cc" - -while : - do case "$1" in - # -c allows you to specify the C compiler - -c) - CC=$2 - shift; shift ;; - - # -f allows you to select a makefile name - -f) - MAKE=$2 - shift; shift ;; - - # the -p flag produces "program: program.c" style dependencies - # so .o's don't get produced - -p) - SED='s;\.o;;' - shift ;; - *) - break ;; - esac -done - -if [ $# = 0 ] ; then - echo 'usage: mkdep [-p] [-c cc] [-f makefile] [flags] file ...' - exit 1 -fi - -if [ ! -w $MAKE ]; then - echo "mkdep: no writeable file \"$MAKE\"" - exit 1 -fi - -TMP=/tmp/mkdep$$ - -trap 'rm -f $TMP ; exit 1' 1 2 3 13 15 - -cp $MAKE ${MAKE}.bak - -sed -e '/DO NOT DELETE THIS LINE/,$d' < $MAKE > $TMP - -cat << _EOF_ >> $TMP -# DO NOT DELETE THIS LINE -- mkdep uses it. -# DO NOT PUT ANYTHING AFTER THIS LINE, IT WILL GO AWAY. - -_EOF_ - -# If your compiler doesn't have -M, add it. If you can't, the next two -# lines will try and replace the "cc -M". The real problem is that this -# hack can't deal with anything that requires a search path, and doesn't -# even try for anything using bracket (<>) syntax. -# -# egrep '^#include[ ]*".*"' /dev/null $* | -# sed -e 's/:[^"]*"\([^"]*\)".*/: \1/' -e 's/\.c/.o/' | - -# XXX this doesn't work with things like "-DDECLWAITSTATUS=union\ wait" -$CC -M $* | -sed " - s; \./; ;g - $SED" | -awk '{ - if ($1 != prev) { - if (rec != "") - print rec; - rec = $0; - prev = $1; - } - else { - if (length(rec $2) > 78) { - print rec; - rec = $0; - } - else - rec = rec " " $2 - } -} -END { - print rec -}' >> $TMP - -cat << _EOF_ >> $TMP - -# IF YOU PUT ANYTHING HERE IT WILL GO AWAY -_EOF_ - -# copy to preserve permissions -cp $TMP $MAKE -rm -f ${MAKE}.bak $TMP -exit 0 diff --git a/contrib/libpcap/nametoaddr.c b/contrib/libpcap/nametoaddr.c deleted file mode 100644 index d60e93d..0000000 --- a/contrib/libpcap/nametoaddr.c +++ /dev/null @@ -1,505 +0,0 @@ -/* - * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * Name to id translation routines used by the scanner. - * These functions are not time critical. - */ - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/nametoaddr.c,v 1.77.2.4 2007/06/11 09:52:05 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#ifdef WIN32 -#include <pcap-stdinc.h> - -#else /* WIN32 */ - -#include <sys/param.h> -#include <sys/types.h> /* concession to AIX */ -#include <sys/socket.h> -#include <sys/time.h> - -#include <netinet/in.h> -#endif /* WIN32 */ - -/* - * XXX - why was this included even on UNIX? - */ -#ifdef __MINGW32__ -#include "IP6_misc.h" -#endif - -#ifndef WIN32 -#ifdef HAVE_ETHER_HOSTTON -/* - * XXX - do we need any of this if <netinet/if_ether.h> doesn't declare - * ether_hostton()? - */ -#ifdef HAVE_NETINET_IF_ETHER_H -struct mbuf; /* Squelch compiler warnings on some platforms for */ -struct rtentry; /* declarations in <net/if.h> */ -#include <net/if.h> /* for "struct ifnet" in "struct arpcom" on Solaris */ -#include <netinet/if_ether.h> -#endif /* HAVE_NETINET_IF_ETHER_H */ -#ifdef NETINET_ETHER_H_DECLARES_ETHER_HOSTTON -#include <netinet/ether.h> -#endif /* NETINET_ETHER_H_DECLARES_ETHER_HOSTTON */ -#endif /* HAVE_ETHER_HOSTTON */ -#include <arpa/inet.h> -#include <netdb.h> -#endif /* WIN32 */ - -#include <ctype.h> -#include <errno.h> -#include <stdlib.h> -#include <string.h> -#include <stdio.h> - -#include "pcap-int.h" - -#include "gencode.h" -#include <pcap-namedb.h> - -#ifdef HAVE_OS_PROTO_H -#include "os-proto.h" -#endif - -#ifndef NTOHL -#define NTOHL(x) (x) = ntohl(x) -#define NTOHS(x) (x) = ntohs(x) -#endif - -static inline int xdtoi(int); - -/* - * Convert host name to internet address. - * Return 0 upon failure. - */ -bpf_u_int32 ** -pcap_nametoaddr(const char *name) -{ -#ifndef h_addr - static bpf_u_int32 *hlist[2]; -#endif - bpf_u_int32 **p; - struct hostent *hp; - - if ((hp = gethostbyname(name)) != NULL) { -#ifndef h_addr - hlist[0] = (bpf_u_int32 *)hp->h_addr; - NTOHL(hp->h_addr); - return hlist; -#else - for (p = (bpf_u_int32 **)hp->h_addr_list; *p; ++p) - NTOHL(**p); - return (bpf_u_int32 **)hp->h_addr_list; -#endif - } - else - return 0; -} - -#ifdef INET6 -struct addrinfo * -pcap_nametoaddrinfo(const char *name) -{ - struct addrinfo hints, *res; - int error; - - memset(&hints, 0, sizeof(hints)); - hints.ai_family = PF_UNSPEC; - hints.ai_socktype = SOCK_STREAM; /*not really*/ - hints.ai_protocol = IPPROTO_TCP; /*not really*/ - error = getaddrinfo(name, NULL, &hints, &res); - if (error) - return NULL; - else - return res; -} -#endif /*INET6*/ - -/* - * Convert net name to internet address. - * Return 0 upon failure. - */ -bpf_u_int32 -pcap_nametonetaddr(const char *name) -{ -#ifndef WIN32 - struct netent *np; - - if ((np = getnetbyname(name)) != NULL) - return np->n_net; - else - return 0; -#else - /* - * There's no "getnetbyname()" on Windows. - */ - return 0; -#endif -} - -/* - * Convert a port name to its port and protocol numbers. - * We assume only TCP or UDP. - * Return 0 upon failure. - */ -int -pcap_nametoport(const char *name, int *port, int *proto) -{ - struct servent *sp; - int tcp_port = -1; - int udp_port = -1; - - /* - * We need to check /etc/services for ambiguous entries. - * If we find the ambiguous entry, and it has the - * same port number, change the proto to PROTO_UNDEF - * so both TCP and UDP will be checked. - */ - sp = getservbyname(name, "tcp"); - if (sp != NULL) tcp_port = ntohs(sp->s_port); - sp = getservbyname(name, "udp"); - if (sp != NULL) udp_port = ntohs(sp->s_port); - if (tcp_port >= 0) { - *port = tcp_port; - *proto = IPPROTO_TCP; - if (udp_port >= 0) { - if (udp_port == tcp_port) - *proto = PROTO_UNDEF; -#ifdef notdef - else - /* Can't handle ambiguous names that refer - to different port numbers. */ - warning("ambiguous port %s in /etc/services", - name); -#endif - } - return 1; - } - if (udp_port >= 0) { - *port = udp_port; - *proto = IPPROTO_UDP; - return 1; - } -#if defined(ultrix) || defined(__osf__) - /* Special hack in case NFS isn't in /etc/services */ - if (strcmp(name, "nfs") == 0) { - *port = 2049; - *proto = PROTO_UNDEF; - return 1; - } -#endif - return 0; -} - -/* - * Convert a string in the form PPP-PPP, where correspond to ports, to - * a starting and ending port in a port range. - * Return 0 on failure. - */ -int -pcap_nametoportrange(const char *name, int *port1, int *port2, int *proto) -{ - u_int p1, p2; - char *off, *cpy; - int save_proto; - - if (sscanf(name, "%d-%d", &p1, &p2) != 2) { - if ((cpy = strdup(name)) == NULL) - return 0; - - if ((off = strchr(cpy, '-')) == NULL) { - free(cpy); - return 0; - } - - *off = '\0'; - - if (pcap_nametoport(cpy, port1, proto) == 0) { - free(cpy); - return 0; - } - save_proto = *proto; - - if (pcap_nametoport(off + 1, port2, proto) == 0) { - free(cpy); - return 0; - } - - if (*proto != save_proto) - *proto = PROTO_UNDEF; - } else { - *port1 = p1; - *port2 = p2; - *proto = PROTO_UNDEF; - } - - return 1; -} - -int -pcap_nametoproto(const char *str) -{ - struct protoent *p; - - p = getprotobyname(str); - if (p != 0) - return p->p_proto; - else - return PROTO_UNDEF; -} - -#include "ethertype.h" - -struct eproto { - const char *s; - u_short p; -}; - -/* Static data base of ether protocol types. */ -struct eproto eproto_db[] = { - { "pup", ETHERTYPE_PUP }, - { "xns", ETHERTYPE_NS }, - { "ip", ETHERTYPE_IP }, -#ifdef INET6 - { "ip6", ETHERTYPE_IPV6 }, -#endif - { "arp", ETHERTYPE_ARP }, - { "rarp", ETHERTYPE_REVARP }, - { "sprite", ETHERTYPE_SPRITE }, - { "mopdl", ETHERTYPE_MOPDL }, - { "moprc", ETHERTYPE_MOPRC }, - { "decnet", ETHERTYPE_DN }, - { "lat", ETHERTYPE_LAT }, - { "sca", ETHERTYPE_SCA }, - { "lanbridge", ETHERTYPE_LANBRIDGE }, - { "vexp", ETHERTYPE_VEXP }, - { "vprod", ETHERTYPE_VPROD }, - { "atalk", ETHERTYPE_ATALK }, - { "atalkarp", ETHERTYPE_AARP }, - { "loopback", ETHERTYPE_LOOPBACK }, - { "decdts", ETHERTYPE_DECDTS }, - { "decdns", ETHERTYPE_DECDNS }, - { (char *)0, 0 } -}; - -int -pcap_nametoeproto(const char *s) -{ - struct eproto *p = eproto_db; - - while (p->s != 0) { - if (strcmp(p->s, s) == 0) - return p->p; - p += 1; - } - return PROTO_UNDEF; -} - -#include "llc.h" - -/* Static data base of LLC values. */ -static struct eproto llc_db[] = { - { "iso", LLCSAP_ISONS }, - { "stp", LLCSAP_8021D }, - { "ipx", LLCSAP_IPX }, - { "netbeui", LLCSAP_NETBEUI }, - { (char *)0, 0 } -}; - -int -pcap_nametollc(const char *s) -{ - struct eproto *p = llc_db; - - while (p->s != 0) { - if (strcmp(p->s, s) == 0) - return p->p; - p += 1; - } - return PROTO_UNDEF; -} - -/* Hex digit to integer. */ -static inline int -xdtoi(c) - register int c; -{ - if (isdigit(c)) - return c - '0'; - else if (islower(c)) - return c - 'a' + 10; - else - return c - 'A' + 10; -} - -int -__pcap_atoin(const char *s, bpf_u_int32 *addr) -{ - u_int n; - int len; - - *addr = 0; - len = 0; - while (1) { - n = 0; - while (*s && *s != '.') - n = n * 10 + *s++ - '0'; - *addr <<= 8; - *addr |= n & 0xff; - len += 8; - if (*s == '\0') - return len; - ++s; - } - /* NOTREACHED */ -} - -int -__pcap_atodn(const char *s, bpf_u_int32 *addr) -{ -#define AREASHIFT 10 -#define AREAMASK 0176000 -#define NODEMASK 01777 - - u_int node, area; - - if (sscanf(s, "%d.%d", &area, &node) != 2) - bpf_error("malformed decnet address '%s'", s); - - *addr = (area << AREASHIFT) & AREAMASK; - *addr |= (node & NODEMASK); - - return(32); -} - -/* - * Convert 's' which has the form "xx:xx:xx:xx:xx:xx" into a new - * ethernet address. Assumes 's' is well formed. - */ -u_char * -pcap_ether_aton(const char *s) -{ - register u_char *ep, *e; - register u_int d; - - e = ep = (u_char *)malloc(6); - - while (*s) { - if (*s == ':') - s += 1; - d = xdtoi(*s++); - if (isxdigit((unsigned char)*s)) { - d <<= 4; - d |= xdtoi(*s++); - } - *ep++ = d; - } - - return (e); -} - -#ifndef HAVE_ETHER_HOSTTON -/* Roll our own */ -u_char * -pcap_ether_hostton(const char *name) -{ - register struct pcap_etherent *ep; - register u_char *ap; - static FILE *fp = NULL; - static int init = 0; - - if (!init) { - fp = fopen(PCAP_ETHERS_FILE, "r"); - ++init; - if (fp == NULL) - return (NULL); - } else if (fp == NULL) - return (NULL); - else - rewind(fp); - - while ((ep = pcap_next_etherent(fp)) != NULL) { - if (strcmp(ep->name, name) == 0) { - ap = (u_char *)malloc(6); - if (ap != NULL) { - memcpy(ap, ep->addr, 6); - return (ap); - } - break; - } - } - return (NULL); -} -#else - -#if !defined(HAVE_DECL_ETHER_HOSTTON) || !HAVE_DECL_ETHER_HOSTTON -#ifndef HAVE_STRUCT_ETHER_ADDR -struct ether_addr { - unsigned char ether_addr_octet[6]; -}; -#endif -extern int ether_hostton(const char *, struct ether_addr *); -#endif - -/* Use the os supplied routines */ -u_char * -pcap_ether_hostton(const char *name) -{ - register u_char *ap; - u_char a[6]; - - ap = NULL; - if (ether_hostton(name, (struct ether_addr *)a) == 0) { - ap = (u_char *)malloc(6); - if (ap != NULL) - memcpy((char *)ap, (char *)a, 6); - } - return (ap); -} -#endif - -u_short -__pcap_nametodnaddr(const char *name) -{ -#ifdef DECNETLIB - struct nodeent *getnodebyname(); - struct nodeent *nep; - unsigned short res; - - nep = getnodebyname(name); - if (nep == ((struct nodeent *)0)) - bpf_error("unknown decnet host name '%s'\n", name); - - memcpy((char *)&res, (char *)nep->n_addr, sizeof(unsigned short)); - return(res); -#else - bpf_error("decnet name support not included, '%s' cannot be translated\n", - name); - return(0); -#endif -} diff --git a/contrib/libpcap/nlpid.h b/contrib/libpcap/nlpid.h deleted file mode 100644 index c3ab8c2..0000000 --- a/contrib/libpcap/nlpid.h +++ /dev/null @@ -1,58 +0,0 @@ -/* - * Copyright (c) 1996 - * Juniper Networks, Inc. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution. The name of Juniper Networks may not - * be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * @(#) $Header: /tcpdump/master/libpcap/nlpid.h,v 1.2 2002/12/06 00:01:34 hannes Exp $ (Juniper) - */ - -/* Types missing from some systems */ - -/* - * Network layer prototocol identifiers - */ -#ifndef ISO8473_CLNP -#define ISO8473_CLNP 0x81 -#endif -#ifndef ISO9542_ESIS -#define ISO9542_ESIS 0x82 -#endif -#ifndef ISO9542X25_ESIS -#define ISO9542X25_ESIS 0x8a -#endif -#ifndef ISO10589_ISIS -#define ISO10589_ISIS 0x83 -#endif -/* - * this does not really belong in the nlpid.h file - * however we need it for generating nice - * IS-IS related BPF filters - */ -#define ISIS_L1_LAN_IIH 15 -#define ISIS_L2_LAN_IIH 16 -#define ISIS_PTP_IIH 17 -#define ISIS_L1_LSP 18 -#define ISIS_L2_LSP 20 -#define ISIS_L1_CSNP 24 -#define ISIS_L2_CSNP 25 -#define ISIS_L1_PSNP 26 -#define ISIS_L2_PSNP 27 - -#ifndef ISO8878A_CONS -#define ISO8878A_CONS 0x84 -#endif -#ifndef ISO10747_IDRP -#define ISO10747_IDRP 0x85 -#endif diff --git a/contrib/libpcap/optimize.c b/contrib/libpcap/optimize.c deleted file mode 100644 index d39273b..0000000 --- a/contrib/libpcap/optimize.c +++ /dev/null @@ -1,2309 +0,0 @@ -/* - * Copyright (c) 1988, 1989, 1990, 1991, 1993, 1994, 1995, 1996 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * Optimization module for tcpdump intermediate representation. - */ -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/optimize.c,v 1.85.2.3 2007/09/12 21:29:45 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <stdio.h> -#include <stdlib.h> -#include <memory.h> -#include <string.h> - -#include <errno.h> - -#include "pcap-int.h" - -#include "gencode.h" - -#ifdef HAVE_OS_PROTO_H -#include "os-proto.h" -#endif - -#ifdef BDEBUG -extern int dflag; -#endif - -#if defined(MSDOS) && !defined(__DJGPP__) -extern int _w32_ffs (int mask); -#define ffs _w32_ffs -#endif - -/* - * Represents a deleted instruction. - */ -#define NOP -1 - -/* - * Register numbers for use-def values. - * 0 through BPF_MEMWORDS-1 represent the corresponding scratch memory - * location. A_ATOM is the accumulator and X_ATOM is the index - * register. - */ -#define A_ATOM BPF_MEMWORDS -#define X_ATOM (BPF_MEMWORDS+1) - -/* - * This define is used to represent *both* the accumulator and - * x register in use-def computations. - * Currently, the use-def code assumes only one definition per instruction. - */ -#define AX_ATOM N_ATOMS - -/* - * A flag to indicate that further optimization is needed. - * Iterative passes are continued until a given pass yields no - * branch movement. - */ -static int done; - -/* - * A block is marked if only if its mark equals the current mark. - * Rather than traverse the code array, marking each item, 'cur_mark' is - * incremented. This automatically makes each element unmarked. - */ -static int cur_mark; -#define isMarked(p) ((p)->mark == cur_mark) -#define unMarkAll() cur_mark += 1 -#define Mark(p) ((p)->mark = cur_mark) - -static void opt_init(struct block *); -static void opt_cleanup(void); - -static void make_marks(struct block *); -static void mark_code(struct block *); - -static void intern_blocks(struct block *); - -static int eq_slist(struct slist *, struct slist *); - -static void find_levels_r(struct block *); - -static void find_levels(struct block *); -static void find_dom(struct block *); -static void propedom(struct edge *); -static void find_edom(struct block *); -static void find_closure(struct block *); -static int atomuse(struct stmt *); -static int atomdef(struct stmt *); -static void compute_local_ud(struct block *); -static void find_ud(struct block *); -static void init_val(void); -static int F(int, int, int); -static inline void vstore(struct stmt *, int *, int, int); -static void opt_blk(struct block *, int); -static int use_conflict(struct block *, struct block *); -static void opt_j(struct edge *); -static void or_pullup(struct block *); -static void and_pullup(struct block *); -static void opt_blks(struct block *, int); -static inline void link_inedge(struct edge *, struct block *); -static void find_inedges(struct block *); -static void opt_root(struct block **); -static void opt_loop(struct block *, int); -static void fold_op(struct stmt *, int, int); -static inline struct slist *this_op(struct slist *); -static void opt_not(struct block *); -static void opt_peep(struct block *); -static void opt_stmt(struct stmt *, int[], int); -static void deadstmt(struct stmt *, struct stmt *[]); -static void opt_deadstores(struct block *); -static struct block *fold_edge(struct block *, struct edge *); -static inline int eq_blk(struct block *, struct block *); -static int slength(struct slist *); -static int count_blocks(struct block *); -static void number_blks_r(struct block *); -static int count_stmts(struct block *); -static int convert_code_r(struct block *); -#ifdef BDEBUG -static void opt_dump(struct block *); -#endif - -static int n_blocks; -struct block **blocks; -static int n_edges; -struct edge **edges; - -/* - * A bit vector set representation of the dominators. - * We round up the set size to the next power of two. - */ -static int nodewords; -static int edgewords; -struct block **levels; -bpf_u_int32 *space; -#define BITS_PER_WORD (8*sizeof(bpf_u_int32)) -/* - * True if a is in uset {p} - */ -#define SET_MEMBER(p, a) \ -((p)[(unsigned)(a) / BITS_PER_WORD] & (1 << ((unsigned)(a) % BITS_PER_WORD))) - -/* - * Add 'a' to uset p. - */ -#define SET_INSERT(p, a) \ -(p)[(unsigned)(a) / BITS_PER_WORD] |= (1 << ((unsigned)(a) % BITS_PER_WORD)) - -/* - * Delete 'a' from uset p. - */ -#define SET_DELETE(p, a) \ -(p)[(unsigned)(a) / BITS_PER_WORD] &= ~(1 << ((unsigned)(a) % BITS_PER_WORD)) - -/* - * a := a intersect b - */ -#define SET_INTERSECT(a, b, n)\ -{\ - register bpf_u_int32 *_x = a, *_y = b;\ - register int _n = n;\ - while (--_n >= 0) *_x++ &= *_y++;\ -} - -/* - * a := a - b - */ -#define SET_SUBTRACT(a, b, n)\ -{\ - register bpf_u_int32 *_x = a, *_y = b;\ - register int _n = n;\ - while (--_n >= 0) *_x++ &=~ *_y++;\ -} - -/* - * a := a union b - */ -#define SET_UNION(a, b, n)\ -{\ - register bpf_u_int32 *_x = a, *_y = b;\ - register int _n = n;\ - while (--_n >= 0) *_x++ |= *_y++;\ -} - -static uset all_dom_sets; -static uset all_closure_sets; -static uset all_edge_sets; - -#ifndef MAX -#define MAX(a,b) ((a)>(b)?(a):(b)) -#endif - -static void -find_levels_r(b) - struct block *b; -{ - int level; - - if (isMarked(b)) - return; - - Mark(b); - b->link = 0; - - if (JT(b)) { - find_levels_r(JT(b)); - find_levels_r(JF(b)); - level = MAX(JT(b)->level, JF(b)->level) + 1; - } else - level = 0; - b->level = level; - b->link = levels[level]; - levels[level] = b; -} - -/* - * Level graph. The levels go from 0 at the leaves to - * N_LEVELS at the root. The levels[] array points to the - * first node of the level list, whose elements are linked - * with the 'link' field of the struct block. - */ -static void -find_levels(root) - struct block *root; -{ - memset((char *)levels, 0, n_blocks * sizeof(*levels)); - unMarkAll(); - find_levels_r(root); -} - -/* - * Find dominator relationships. - * Assumes graph has been leveled. - */ -static void -find_dom(root) - struct block *root; -{ - int i; - struct block *b; - bpf_u_int32 *x; - - /* - * Initialize sets to contain all nodes. - */ - x = all_dom_sets; - i = n_blocks * nodewords; - while (--i >= 0) - *x++ = ~0; - /* Root starts off empty. */ - for (i = nodewords; --i >= 0;) - root->dom[i] = 0; - - /* root->level is the highest level no found. */ - for (i = root->level; i >= 0; --i) { - for (b = levels[i]; b; b = b->link) { - SET_INSERT(b->dom, b->id); - if (JT(b) == 0) - continue; - SET_INTERSECT(JT(b)->dom, b->dom, nodewords); - SET_INTERSECT(JF(b)->dom, b->dom, nodewords); - } - } -} - -static void -propedom(ep) - struct edge *ep; -{ - SET_INSERT(ep->edom, ep->id); - if (ep->succ) { - SET_INTERSECT(ep->succ->et.edom, ep->edom, edgewords); - SET_INTERSECT(ep->succ->ef.edom, ep->edom, edgewords); - } -} - -/* - * Compute edge dominators. - * Assumes graph has been leveled and predecessors established. - */ -static void -find_edom(root) - struct block *root; -{ - int i; - uset x; - struct block *b; - - x = all_edge_sets; - for (i = n_edges * edgewords; --i >= 0; ) - x[i] = ~0; - - /* root->level is the highest level no found. */ - memset(root->et.edom, 0, edgewords * sizeof(*(uset)0)); - memset(root->ef.edom, 0, edgewords * sizeof(*(uset)0)); - for (i = root->level; i >= 0; --i) { - for (b = levels[i]; b != 0; b = b->link) { - propedom(&b->et); - propedom(&b->ef); - } - } -} - -/* - * Find the backwards transitive closure of the flow graph. These sets - * are backwards in the sense that we find the set of nodes that reach - * a given node, not the set of nodes that can be reached by a node. - * - * Assumes graph has been leveled. - */ -static void -find_closure(root) - struct block *root; -{ - int i; - struct block *b; - - /* - * Initialize sets to contain no nodes. - */ - memset((char *)all_closure_sets, 0, - n_blocks * nodewords * sizeof(*all_closure_sets)); - - /* root->level is the highest level no found. */ - for (i = root->level; i >= 0; --i) { - for (b = levels[i]; b; b = b->link) { - SET_INSERT(b->closure, b->id); - if (JT(b) == 0) - continue; - SET_UNION(JT(b)->closure, b->closure, nodewords); - SET_UNION(JF(b)->closure, b->closure, nodewords); - } - } -} - -/* - * Return the register number that is used by s. If A and X are both - * used, return AX_ATOM. If no register is used, return -1. - * - * The implementation should probably change to an array access. - */ -static int -atomuse(s) - struct stmt *s; -{ - register int c = s->code; - - if (c == NOP) - return -1; - - switch (BPF_CLASS(c)) { - - case BPF_RET: - return (BPF_RVAL(c) == BPF_A) ? A_ATOM : - (BPF_RVAL(c) == BPF_X) ? X_ATOM : -1; - - case BPF_LD: - case BPF_LDX: - return (BPF_MODE(c) == BPF_IND) ? X_ATOM : - (BPF_MODE(c) == BPF_MEM) ? s->k : -1; - - case BPF_ST: - return A_ATOM; - - case BPF_STX: - return X_ATOM; - - case BPF_JMP: - case BPF_ALU: - if (BPF_SRC(c) == BPF_X) - return AX_ATOM; - return A_ATOM; - - case BPF_MISC: - return BPF_MISCOP(c) == BPF_TXA ? X_ATOM : A_ATOM; - } - abort(); - /* NOTREACHED */ -} - -/* - * Return the register number that is defined by 's'. We assume that - * a single stmt cannot define more than one register. If no register - * is defined, return -1. - * - * The implementation should probably change to an array access. - */ -static int -atomdef(s) - struct stmt *s; -{ - if (s->code == NOP) - return -1; - - switch (BPF_CLASS(s->code)) { - - case BPF_LD: - case BPF_ALU: - return A_ATOM; - - case BPF_LDX: - return X_ATOM; - - case BPF_ST: - case BPF_STX: - return s->k; - - case BPF_MISC: - return BPF_MISCOP(s->code) == BPF_TAX ? X_ATOM : A_ATOM; - } - return -1; -} - -/* - * Compute the sets of registers used, defined, and killed by 'b'. - * - * "Used" means that a statement in 'b' uses the register before any - * statement in 'b' defines it, i.e. it uses the value left in - * that register by a predecessor block of this block. - * "Defined" means that a statement in 'b' defines it. - * "Killed" means that a statement in 'b' defines it before any - * statement in 'b' uses it, i.e. it kills the value left in that - * register by a predecessor block of this block. - */ -static void -compute_local_ud(b) - struct block *b; -{ - struct slist *s; - atomset def = 0, use = 0, kill = 0; - int atom; - - for (s = b->stmts; s; s = s->next) { - if (s->s.code == NOP) - continue; - atom = atomuse(&s->s); - if (atom >= 0) { - if (atom == AX_ATOM) { - if (!ATOMELEM(def, X_ATOM)) - use |= ATOMMASK(X_ATOM); - if (!ATOMELEM(def, A_ATOM)) - use |= ATOMMASK(A_ATOM); - } - else if (atom < N_ATOMS) { - if (!ATOMELEM(def, atom)) - use |= ATOMMASK(atom); - } - else - abort(); - } - atom = atomdef(&s->s); - if (atom >= 0) { - if (!ATOMELEM(use, atom)) - kill |= ATOMMASK(atom); - def |= ATOMMASK(atom); - } - } - if (BPF_CLASS(b->s.code) == BPF_JMP) { - /* - * XXX - what about RET? - */ - atom = atomuse(&b->s); - if (atom >= 0) { - if (atom == AX_ATOM) { - if (!ATOMELEM(def, X_ATOM)) - use |= ATOMMASK(X_ATOM); - if (!ATOMELEM(def, A_ATOM)) - use |= ATOMMASK(A_ATOM); - } - else if (atom < N_ATOMS) { - if (!ATOMELEM(def, atom)) - use |= ATOMMASK(atom); - } - else - abort(); - } - } - - b->def = def; - b->kill = kill; - b->in_use = use; -} - -/* - * Assume graph is already leveled. - */ -static void -find_ud(root) - struct block *root; -{ - int i, maxlevel; - struct block *p; - - /* - * root->level is the highest level no found; - * count down from there. - */ - maxlevel = root->level; - for (i = maxlevel; i >= 0; --i) - for (p = levels[i]; p; p = p->link) { - compute_local_ud(p); - p->out_use = 0; - } - - for (i = 1; i <= maxlevel; ++i) { - for (p = levels[i]; p; p = p->link) { - p->out_use |= JT(p)->in_use | JF(p)->in_use; - p->in_use |= p->out_use &~ p->kill; - } - } -} - -/* - * These data structures are used in a Cocke and Shwarz style - * value numbering scheme. Since the flowgraph is acyclic, - * exit values can be propagated from a node's predecessors - * provided it is uniquely defined. - */ -struct valnode { - int code; - int v0, v1; - int val; - struct valnode *next; -}; - -#define MODULUS 213 -static struct valnode *hashtbl[MODULUS]; -static int curval; -static int maxval; - -/* Integer constants mapped with the load immediate opcode. */ -#define K(i) F(BPF_LD|BPF_IMM|BPF_W, i, 0L) - -struct vmapinfo { - int is_const; - bpf_int32 const_val; -}; - -struct vmapinfo *vmap; -struct valnode *vnode_base; -struct valnode *next_vnode; - -static void -init_val() -{ - curval = 0; - next_vnode = vnode_base; - memset((char *)vmap, 0, maxval * sizeof(*vmap)); - memset((char *)hashtbl, 0, sizeof hashtbl); -} - -/* Because we really don't have an IR, this stuff is a little messy. */ -static int -F(code, v0, v1) - int code; - int v0, v1; -{ - u_int hash; - int val; - struct valnode *p; - - hash = (u_int)code ^ (v0 << 4) ^ (v1 << 8); - hash %= MODULUS; - - for (p = hashtbl[hash]; p; p = p->next) - if (p->code == code && p->v0 == v0 && p->v1 == v1) - return p->val; - - val = ++curval; - if (BPF_MODE(code) == BPF_IMM && - (BPF_CLASS(code) == BPF_LD || BPF_CLASS(code) == BPF_LDX)) { - vmap[val].const_val = v0; - vmap[val].is_const = 1; - } - p = next_vnode++; - p->val = val; - p->code = code; - p->v0 = v0; - p->v1 = v1; - p->next = hashtbl[hash]; - hashtbl[hash] = p; - - return val; -} - -static inline void -vstore(s, valp, newval, alter) - struct stmt *s; - int *valp; - int newval; - int alter; -{ - if (alter && *valp == newval) - s->code = NOP; - else - *valp = newval; -} - -static void -fold_op(s, v0, v1) - struct stmt *s; - int v0, v1; -{ - bpf_u_int32 a, b; - - a = vmap[v0].const_val; - b = vmap[v1].const_val; - - switch (BPF_OP(s->code)) { - case BPF_ADD: - a += b; - break; - - case BPF_SUB: - a -= b; - break; - - case BPF_MUL: - a *= b; - break; - - case BPF_DIV: - if (b == 0) - bpf_error("division by zero"); - a /= b; - break; - - case BPF_AND: - a &= b; - break; - - case BPF_OR: - a |= b; - break; - - case BPF_LSH: - a <<= b; - break; - - case BPF_RSH: - a >>= b; - break; - - case BPF_NEG: - a = -a; - break; - - default: - abort(); - } - s->k = a; - s->code = BPF_LD|BPF_IMM; - done = 0; -} - -static inline struct slist * -this_op(s) - struct slist *s; -{ - while (s != 0 && s->s.code == NOP) - s = s->next; - return s; -} - -static void -opt_not(b) - struct block *b; -{ - struct block *tmp = JT(b); - - JT(b) = JF(b); - JF(b) = tmp; -} - -static void -opt_peep(b) - struct block *b; -{ - struct slist *s; - struct slist *next, *last; - int val; - - s = b->stmts; - if (s == 0) - return; - - last = s; - for (/*empty*/; /*empty*/; s = next) { - /* - * Skip over nops. - */ - s = this_op(s); - if (s == 0) - break; /* nothing left in the block */ - - /* - * Find the next real instruction after that one - * (skipping nops). - */ - next = this_op(s->next); - if (next == 0) - break; /* no next instruction */ - last = next; - - /* - * st M[k] --> st M[k] - * ldx M[k] tax - */ - if (s->s.code == BPF_ST && - next->s.code == (BPF_LDX|BPF_MEM) && - s->s.k == next->s.k) { - done = 0; - next->s.code = BPF_MISC|BPF_TAX; - } - /* - * ld #k --> ldx #k - * tax txa - */ - if (s->s.code == (BPF_LD|BPF_IMM) && - next->s.code == (BPF_MISC|BPF_TAX)) { - s->s.code = BPF_LDX|BPF_IMM; - next->s.code = BPF_MISC|BPF_TXA; - done = 0; - } - /* - * This is an ugly special case, but it happens - * when you say tcp[k] or udp[k] where k is a constant. - */ - if (s->s.code == (BPF_LD|BPF_IMM)) { - struct slist *add, *tax, *ild; - - /* - * Check that X isn't used on exit from this - * block (which the optimizer might cause). - * We know the code generator won't generate - * any local dependencies. - */ - if (ATOMELEM(b->out_use, X_ATOM)) - continue; - - /* - * Check that the instruction following the ldi - * is an addx, or it's an ldxms with an addx - * following it (with 0 or more nops between the - * ldxms and addx). - */ - if (next->s.code != (BPF_LDX|BPF_MSH|BPF_B)) - add = next; - else - add = this_op(next->next); - if (add == 0 || add->s.code != (BPF_ALU|BPF_ADD|BPF_X)) - continue; - - /* - * Check that a tax follows that (with 0 or more - * nops between them). - */ - tax = this_op(add->next); - if (tax == 0 || tax->s.code != (BPF_MISC|BPF_TAX)) - continue; - - /* - * Check that an ild follows that (with 0 or more - * nops between them). - */ - ild = this_op(tax->next); - if (ild == 0 || BPF_CLASS(ild->s.code) != BPF_LD || - BPF_MODE(ild->s.code) != BPF_IND) - continue; - /* - * We want to turn this sequence: - * - * (004) ldi #0x2 {s} - * (005) ldxms [14] {next} -- optional - * (006) addx {add} - * (007) tax {tax} - * (008) ild [x+0] {ild} - * - * into this sequence: - * - * (004) nop - * (005) ldxms [14] - * (006) nop - * (007) nop - * (008) ild [x+2] - * - * XXX We need to check that X is not - * subsequently used, because we want to change - * what'll be in it after this sequence. - * - * We know we can eliminate the accumulator - * modifications earlier in the sequence since - * it is defined by the last stmt of this sequence - * (i.e., the last statement of the sequence loads - * a value into the accumulator, so we can eliminate - * earlier operations on the accumulator). - */ - ild->s.k += s->s.k; - s->s.code = NOP; - add->s.code = NOP; - tax->s.code = NOP; - done = 0; - } - } - /* - * If the comparison at the end of a block is an equality - * comparison against a constant, and nobody uses the value - * we leave in the A register at the end of a block, and - * the operation preceding the comparison is an arithmetic - * operation, we can sometime optimize it away. - */ - if (b->s.code == (BPF_JMP|BPF_JEQ|BPF_K) && - !ATOMELEM(b->out_use, A_ATOM)) { - /* - * We can optimize away certain subtractions of the - * X register. - */ - if (last->s.code == (BPF_ALU|BPF_SUB|BPF_X)) { - val = b->val[X_ATOM]; - if (vmap[val].is_const) { - /* - * If we have a subtract to do a comparison, - * and the X register is a known constant, - * we can merge this value into the - * comparison: - * - * sub x -> nop - * jeq #y jeq #(x+y) - */ - b->s.k += vmap[val].const_val; - last->s.code = NOP; - done = 0; - } else if (b->s.k == 0) { - /* - * If the X register isn't a constant, - * and the comparison in the test is - * against 0, we can compare with the - * X register, instead: - * - * sub x -> nop - * jeq #0 jeq x - */ - last->s.code = NOP; - b->s.code = BPF_JMP|BPF_JEQ|BPF_X; - done = 0; - } - } - /* - * Likewise, a constant subtract can be simplified: - * - * sub #x -> nop - * jeq #y -> jeq #(x+y) - */ - else if (last->s.code == (BPF_ALU|BPF_SUB|BPF_K)) { - last->s.code = NOP; - b->s.k += last->s.k; - done = 0; - } - /* - * And, similarly, a constant AND can be simplified - * if we're testing against 0, i.e.: - * - * and #k nop - * jeq #0 -> jset #k - */ - else if (last->s.code == (BPF_ALU|BPF_AND|BPF_K) && - b->s.k == 0) { - b->s.k = last->s.k; - b->s.code = BPF_JMP|BPF_K|BPF_JSET; - last->s.code = NOP; - done = 0; - opt_not(b); - } - } - /* - * jset #0 -> never - * jset #ffffffff -> always - */ - if (b->s.code == (BPF_JMP|BPF_K|BPF_JSET)) { - if (b->s.k == 0) - JT(b) = JF(b); - if (b->s.k == 0xffffffff) - JF(b) = JT(b); - } - /* - * If the accumulator is a known constant, we can compute the - * comparison result. - */ - val = b->val[A_ATOM]; - if (vmap[val].is_const && BPF_SRC(b->s.code) == BPF_K) { - bpf_int32 v = vmap[val].const_val; - switch (BPF_OP(b->s.code)) { - - case BPF_JEQ: - v = v == b->s.k; - break; - - case BPF_JGT: - v = (unsigned)v > b->s.k; - break; - - case BPF_JGE: - v = (unsigned)v >= b->s.k; - break; - - case BPF_JSET: - v &= b->s.k; - break; - - default: - abort(); - } - if (JF(b) != JT(b)) - done = 0; - if (v) - JF(b) = JT(b); - else - JT(b) = JF(b); - } -} - -/* - * Compute the symbolic value of expression of 's', and update - * anything it defines in the value table 'val'. If 'alter' is true, - * do various optimizations. This code would be cleaner if symbolic - * evaluation and code transformations weren't folded together. - */ -static void -opt_stmt(s, val, alter) - struct stmt *s; - int val[]; - int alter; -{ - int op; - int v; - - switch (s->code) { - - case BPF_LD|BPF_ABS|BPF_W: - case BPF_LD|BPF_ABS|BPF_H: - case BPF_LD|BPF_ABS|BPF_B: - v = F(s->code, s->k, 0L); - vstore(s, &val[A_ATOM], v, alter); - break; - - case BPF_LD|BPF_IND|BPF_W: - case BPF_LD|BPF_IND|BPF_H: - case BPF_LD|BPF_IND|BPF_B: - v = val[X_ATOM]; - if (alter && vmap[v].is_const) { - s->code = BPF_LD|BPF_ABS|BPF_SIZE(s->code); - s->k += vmap[v].const_val; - v = F(s->code, s->k, 0L); - done = 0; - } - else - v = F(s->code, s->k, v); - vstore(s, &val[A_ATOM], v, alter); - break; - - case BPF_LD|BPF_LEN: - v = F(s->code, 0L, 0L); - vstore(s, &val[A_ATOM], v, alter); - break; - - case BPF_LD|BPF_IMM: - v = K(s->k); - vstore(s, &val[A_ATOM], v, alter); - break; - - case BPF_LDX|BPF_IMM: - v = K(s->k); - vstore(s, &val[X_ATOM], v, alter); - break; - - case BPF_LDX|BPF_MSH|BPF_B: - v = F(s->code, s->k, 0L); - vstore(s, &val[X_ATOM], v, alter); - break; - - case BPF_ALU|BPF_NEG: - if (alter && vmap[val[A_ATOM]].is_const) { - s->code = BPF_LD|BPF_IMM; - s->k = -vmap[val[A_ATOM]].const_val; - val[A_ATOM] = K(s->k); - } - else - val[A_ATOM] = F(s->code, val[A_ATOM], 0L); - break; - - case BPF_ALU|BPF_ADD|BPF_K: - case BPF_ALU|BPF_SUB|BPF_K: - case BPF_ALU|BPF_MUL|BPF_K: - case BPF_ALU|BPF_DIV|BPF_K: - case BPF_ALU|BPF_AND|BPF_K: - case BPF_ALU|BPF_OR|BPF_K: - case BPF_ALU|BPF_LSH|BPF_K: - case BPF_ALU|BPF_RSH|BPF_K: - op = BPF_OP(s->code); - if (alter) { - if (s->k == 0) { - /* don't optimize away "sub #0" - * as it may be needed later to - * fixup the generated math code */ - if (op == BPF_ADD || - op == BPF_LSH || op == BPF_RSH || - op == BPF_OR) { - s->code = NOP; - break; - } - if (op == BPF_MUL || op == BPF_AND) { - s->code = BPF_LD|BPF_IMM; - val[A_ATOM] = K(s->k); - break; - } - } - if (vmap[val[A_ATOM]].is_const) { - fold_op(s, val[A_ATOM], K(s->k)); - val[A_ATOM] = K(s->k); - break; - } - } - val[A_ATOM] = F(s->code, val[A_ATOM], K(s->k)); - break; - - case BPF_ALU|BPF_ADD|BPF_X: - case BPF_ALU|BPF_SUB|BPF_X: - case BPF_ALU|BPF_MUL|BPF_X: - case BPF_ALU|BPF_DIV|BPF_X: - case BPF_ALU|BPF_AND|BPF_X: - case BPF_ALU|BPF_OR|BPF_X: - case BPF_ALU|BPF_LSH|BPF_X: - case BPF_ALU|BPF_RSH|BPF_X: - op = BPF_OP(s->code); - if (alter && vmap[val[X_ATOM]].is_const) { - if (vmap[val[A_ATOM]].is_const) { - fold_op(s, val[A_ATOM], val[X_ATOM]); - val[A_ATOM] = K(s->k); - } - else { - s->code = BPF_ALU|BPF_K|op; - s->k = vmap[val[X_ATOM]].const_val; - done = 0; - val[A_ATOM] = - F(s->code, val[A_ATOM], K(s->k)); - } - break; - } - /* - * Check if we're doing something to an accumulator - * that is 0, and simplify. This may not seem like - * much of a simplification but it could open up further - * optimizations. - * XXX We could also check for mul by 1, etc. - */ - if (alter && vmap[val[A_ATOM]].is_const - && vmap[val[A_ATOM]].const_val == 0) { - if (op == BPF_ADD || op == BPF_OR) { - s->code = BPF_MISC|BPF_TXA; - vstore(s, &val[A_ATOM], val[X_ATOM], alter); - break; - } - else if (op == BPF_MUL || op == BPF_DIV || - op == BPF_AND || op == BPF_LSH || op == BPF_RSH) { - s->code = BPF_LD|BPF_IMM; - s->k = 0; - vstore(s, &val[A_ATOM], K(s->k), alter); - break; - } - else if (op == BPF_NEG) { - s->code = NOP; - break; - } - } - val[A_ATOM] = F(s->code, val[A_ATOM], val[X_ATOM]); - break; - - case BPF_MISC|BPF_TXA: - vstore(s, &val[A_ATOM], val[X_ATOM], alter); - break; - - case BPF_LD|BPF_MEM: - v = val[s->k]; - if (alter && vmap[v].is_const) { - s->code = BPF_LD|BPF_IMM; - s->k = vmap[v].const_val; - done = 0; - } - vstore(s, &val[A_ATOM], v, alter); - break; - - case BPF_MISC|BPF_TAX: - vstore(s, &val[X_ATOM], val[A_ATOM], alter); - break; - - case BPF_LDX|BPF_MEM: - v = val[s->k]; - if (alter && vmap[v].is_const) { - s->code = BPF_LDX|BPF_IMM; - s->k = vmap[v].const_val; - done = 0; - } - vstore(s, &val[X_ATOM], v, alter); - break; - - case BPF_ST: - vstore(s, &val[s->k], val[A_ATOM], alter); - break; - - case BPF_STX: - vstore(s, &val[s->k], val[X_ATOM], alter); - break; - } -} - -static void -deadstmt(s, last) - register struct stmt *s; - register struct stmt *last[]; -{ - register int atom; - - atom = atomuse(s); - if (atom >= 0) { - if (atom == AX_ATOM) { - last[X_ATOM] = 0; - last[A_ATOM] = 0; - } - else - last[atom] = 0; - } - atom = atomdef(s); - if (atom >= 0) { - if (last[atom]) { - done = 0; - last[atom]->code = NOP; - } - last[atom] = s; - } -} - -static void -opt_deadstores(b) - register struct block *b; -{ - register struct slist *s; - register int atom; - struct stmt *last[N_ATOMS]; - - memset((char *)last, 0, sizeof last); - - for (s = b->stmts; s != 0; s = s->next) - deadstmt(&s->s, last); - deadstmt(&b->s, last); - - for (atom = 0; atom < N_ATOMS; ++atom) - if (last[atom] && !ATOMELEM(b->out_use, atom)) { - last[atom]->code = NOP; - done = 0; - } -} - -static void -opt_blk(b, do_stmts) - struct block *b; - int do_stmts; -{ - struct slist *s; - struct edge *p; - int i; - bpf_int32 aval, xval; - -#if 0 - for (s = b->stmts; s && s->next; s = s->next) - if (BPF_CLASS(s->s.code) == BPF_JMP) { - do_stmts = 0; - break; - } -#endif - - /* - * Initialize the atom values. - */ - p = b->in_edges; - if (p == 0) { - /* - * We have no predecessors, so everything is undefined - * upon entry to this block. - */ - memset((char *)b->val, 0, sizeof(b->val)); - } else { - /* - * Inherit values from our predecessors. - * - * First, get the values from the predecessor along the - * first edge leading to this node. - */ - memcpy((char *)b->val, (char *)p->pred->val, sizeof(b->val)); - /* - * Now look at all the other nodes leading to this node. - * If, for the predecessor along that edge, a register - * has a different value from the one we have (i.e., - * control paths are merging, and the merging paths - * assign different values to that register), give the - * register the undefined value of 0. - */ - while ((p = p->next) != NULL) { - for (i = 0; i < N_ATOMS; ++i) - if (b->val[i] != p->pred->val[i]) - b->val[i] = 0; - } - } - aval = b->val[A_ATOM]; - xval = b->val[X_ATOM]; - for (s = b->stmts; s; s = s->next) - opt_stmt(&s->s, b->val, do_stmts); - - /* - * This is a special case: if we don't use anything from this - * block, and we load the accumulator or index register with a - * value that is already there, or if this block is a return, - * eliminate all the statements. - * - * XXX - what if it does a store? - * - * XXX - why does it matter whether we use anything from this - * block? If the accumulator or index register doesn't change - * its value, isn't that OK even if we use that value? - * - * XXX - if we load the accumulator with a different value, - * and the block ends with a conditional branch, we obviously - * can't eliminate it, as the branch depends on that value. - * For the index register, the conditional branch only depends - * on the index register value if the test is against the index - * register value rather than a constant; if nothing uses the - * value we put into the index register, and we're not testing - * against the index register's value, and there aren't any - * other problems that would keep us from eliminating this - * block, can we eliminate it? - */ - if (do_stmts && - ((b->out_use == 0 && aval != 0 && b->val[A_ATOM] == aval && - xval != 0 && b->val[X_ATOM] == xval) || - BPF_CLASS(b->s.code) == BPF_RET)) { - if (b->stmts != 0) { - b->stmts = 0; - done = 0; - } - } else { - opt_peep(b); - opt_deadstores(b); - } - /* - * Set up values for branch optimizer. - */ - if (BPF_SRC(b->s.code) == BPF_K) - b->oval = K(b->s.k); - else - b->oval = b->val[X_ATOM]; - b->et.code = b->s.code; - b->ef.code = -b->s.code; -} - -/* - * Return true if any register that is used on exit from 'succ', has - * an exit value that is different from the corresponding exit value - * from 'b'. - */ -static int -use_conflict(b, succ) - struct block *b, *succ; -{ - int atom; - atomset use = succ->out_use; - - if (use == 0) - return 0; - - for (atom = 0; atom < N_ATOMS; ++atom) - if (ATOMELEM(use, atom)) - if (b->val[atom] != succ->val[atom]) - return 1; - return 0; -} - -static struct block * -fold_edge(child, ep) - struct block *child; - struct edge *ep; -{ - int sense; - int aval0, aval1, oval0, oval1; - int code = ep->code; - - if (code < 0) { - code = -code; - sense = 0; - } else - sense = 1; - - if (child->s.code != code) - return 0; - - aval0 = child->val[A_ATOM]; - oval0 = child->oval; - aval1 = ep->pred->val[A_ATOM]; - oval1 = ep->pred->oval; - - if (aval0 != aval1) - return 0; - - if (oval0 == oval1) - /* - * The operands of the branch instructions are - * identical, so the result is true if a true - * branch was taken to get here, otherwise false. - */ - return sense ? JT(child) : JF(child); - - if (sense && code == (BPF_JMP|BPF_JEQ|BPF_K)) - /* - * At this point, we only know the comparison if we - * came down the true branch, and it was an equality - * comparison with a constant. - * - * I.e., if we came down the true branch, and the branch - * was an equality comparison with a constant, we know the - * accumulator contains that constant. If we came down - * the false branch, or the comparison wasn't with a - * constant, we don't know what was in the accumulator. - * - * We rely on the fact that distinct constants have distinct - * value numbers. - */ - return JF(child); - - return 0; -} - -static void -opt_j(ep) - struct edge *ep; -{ - register int i, k; - register struct block *target; - - if (JT(ep->succ) == 0) - return; - - if (JT(ep->succ) == JF(ep->succ)) { - /* - * Common branch targets can be eliminated, provided - * there is no data dependency. - */ - if (!use_conflict(ep->pred, ep->succ->et.succ)) { - done = 0; - ep->succ = JT(ep->succ); - } - } - /* - * For each edge dominator that matches the successor of this - * edge, promote the edge successor to the its grandchild. - * - * XXX We violate the set abstraction here in favor a reasonably - * efficient loop. - */ - top: - for (i = 0; i < edgewords; ++i) { - register bpf_u_int32 x = ep->edom[i]; - - while (x != 0) { - k = ffs(x) - 1; - x &=~ (1 << k); - k += i * BITS_PER_WORD; - - target = fold_edge(ep->succ, edges[k]); - /* - * Check that there is no data dependency between - * nodes that will be violated if we move the edge. - */ - if (target != 0 && !use_conflict(ep->pred, target)) { - done = 0; - ep->succ = target; - if (JT(target) != 0) - /* - * Start over unless we hit a leaf. - */ - goto top; - return; - } - } - } -} - - -static void -or_pullup(b) - struct block *b; -{ - int val, at_top; - struct block *pull; - struct block **diffp, **samep; - struct edge *ep; - - ep = b->in_edges; - if (ep == 0) - return; - - /* - * Make sure each predecessor loads the same value. - * XXX why? - */ - val = ep->pred->val[A_ATOM]; - for (ep = ep->next; ep != 0; ep = ep->next) - if (val != ep->pred->val[A_ATOM]) - return; - - if (JT(b->in_edges->pred) == b) - diffp = &JT(b->in_edges->pred); - else - diffp = &JF(b->in_edges->pred); - - at_top = 1; - while (1) { - if (*diffp == 0) - return; - - if (JT(*diffp) != JT(b)) - return; - - if (!SET_MEMBER((*diffp)->dom, b->id)) - return; - - if ((*diffp)->val[A_ATOM] != val) - break; - - diffp = &JF(*diffp); - at_top = 0; - } - samep = &JF(*diffp); - while (1) { - if (*samep == 0) - return; - - if (JT(*samep) != JT(b)) - return; - - if (!SET_MEMBER((*samep)->dom, b->id)) - return; - - if ((*samep)->val[A_ATOM] == val) - break; - - /* XXX Need to check that there are no data dependencies - between dp0 and dp1. Currently, the code generator - will not produce such dependencies. */ - samep = &JF(*samep); - } -#ifdef notdef - /* XXX This doesn't cover everything. */ - for (i = 0; i < N_ATOMS; ++i) - if ((*samep)->val[i] != pred->val[i]) - return; -#endif - /* Pull up the node. */ - pull = *samep; - *samep = JF(pull); - JF(pull) = *diffp; - - /* - * At the top of the chain, each predecessor needs to point at the - * pulled up node. Inside the chain, there is only one predecessor - * to worry about. - */ - if (at_top) { - for (ep = b->in_edges; ep != 0; ep = ep->next) { - if (JT(ep->pred) == b) - JT(ep->pred) = pull; - else - JF(ep->pred) = pull; - } - } - else - *diffp = pull; - - done = 0; -} - -static void -and_pullup(b) - struct block *b; -{ - int val, at_top; - struct block *pull; - struct block **diffp, **samep; - struct edge *ep; - - ep = b->in_edges; - if (ep == 0) - return; - - /* - * Make sure each predecessor loads the same value. - */ - val = ep->pred->val[A_ATOM]; - for (ep = ep->next; ep != 0; ep = ep->next) - if (val != ep->pred->val[A_ATOM]) - return; - - if (JT(b->in_edges->pred) == b) - diffp = &JT(b->in_edges->pred); - else - diffp = &JF(b->in_edges->pred); - - at_top = 1; - while (1) { - if (*diffp == 0) - return; - - if (JF(*diffp) != JF(b)) - return; - - if (!SET_MEMBER((*diffp)->dom, b->id)) - return; - - if ((*diffp)->val[A_ATOM] != val) - break; - - diffp = &JT(*diffp); - at_top = 0; - } - samep = &JT(*diffp); - while (1) { - if (*samep == 0) - return; - - if (JF(*samep) != JF(b)) - return; - - if (!SET_MEMBER((*samep)->dom, b->id)) - return; - - if ((*samep)->val[A_ATOM] == val) - break; - - /* XXX Need to check that there are no data dependencies - between diffp and samep. Currently, the code generator - will not produce such dependencies. */ - samep = &JT(*samep); - } -#ifdef notdef - /* XXX This doesn't cover everything. */ - for (i = 0; i < N_ATOMS; ++i) - if ((*samep)->val[i] != pred->val[i]) - return; -#endif - /* Pull up the node. */ - pull = *samep; - *samep = JT(pull); - JT(pull) = *diffp; - - /* - * At the top of the chain, each predecessor needs to point at the - * pulled up node. Inside the chain, there is only one predecessor - * to worry about. - */ - if (at_top) { - for (ep = b->in_edges; ep != 0; ep = ep->next) { - if (JT(ep->pred) == b) - JT(ep->pred) = pull; - else - JF(ep->pred) = pull; - } - } - else - *diffp = pull; - - done = 0; -} - -static void -opt_blks(root, do_stmts) - struct block *root; - int do_stmts; -{ - int i, maxlevel; - struct block *p; - - init_val(); - maxlevel = root->level; - - find_inedges(root); - for (i = maxlevel; i >= 0; --i) - for (p = levels[i]; p; p = p->link) - opt_blk(p, do_stmts); - - if (do_stmts) - /* - * No point trying to move branches; it can't possibly - * make a difference at this point. - */ - return; - - for (i = 1; i <= maxlevel; ++i) { - for (p = levels[i]; p; p = p->link) { - opt_j(&p->et); - opt_j(&p->ef); - } - } - - find_inedges(root); - for (i = 1; i <= maxlevel; ++i) { - for (p = levels[i]; p; p = p->link) { - or_pullup(p); - and_pullup(p); - } - } -} - -static inline void -link_inedge(parent, child) - struct edge *parent; - struct block *child; -{ - parent->next = child->in_edges; - child->in_edges = parent; -} - -static void -find_inedges(root) - struct block *root; -{ - int i; - struct block *b; - - for (i = 0; i < n_blocks; ++i) - blocks[i]->in_edges = 0; - - /* - * Traverse the graph, adding each edge to the predecessor - * list of its successors. Skip the leaves (i.e. level 0). - */ - for (i = root->level; i > 0; --i) { - for (b = levels[i]; b != 0; b = b->link) { - link_inedge(&b->et, JT(b)); - link_inedge(&b->ef, JF(b)); - } - } -} - -static void -opt_root(b) - struct block **b; -{ - struct slist *tmp, *s; - - s = (*b)->stmts; - (*b)->stmts = 0; - while (BPF_CLASS((*b)->s.code) == BPF_JMP && JT(*b) == JF(*b)) - *b = JT(*b); - - tmp = (*b)->stmts; - if (tmp != 0) - sappend(s, tmp); - (*b)->stmts = s; - - /* - * If the root node is a return, then there is no - * point executing any statements (since the bpf machine - * has no side effects). - */ - if (BPF_CLASS((*b)->s.code) == BPF_RET) - (*b)->stmts = 0; -} - -static void -opt_loop(root, do_stmts) - struct block *root; - int do_stmts; -{ - -#ifdef BDEBUG - if (dflag > 1) { - printf("opt_loop(root, %d) begin\n", do_stmts); - opt_dump(root); - } -#endif - do { - done = 1; - find_levels(root); - find_dom(root); - find_closure(root); - find_ud(root); - find_edom(root); - opt_blks(root, do_stmts); -#ifdef BDEBUG - if (dflag > 1) { - printf("opt_loop(root, %d) bottom, done=%d\n", do_stmts, done); - opt_dump(root); - } -#endif - } while (!done); -} - -/* - * Optimize the filter code in its dag representation. - */ -void -bpf_optimize(rootp) - struct block **rootp; -{ - struct block *root; - - root = *rootp; - - opt_init(root); - opt_loop(root, 0); - opt_loop(root, 1); - intern_blocks(root); -#ifdef BDEBUG - if (dflag > 1) { - printf("after intern_blocks()\n"); - opt_dump(root); - } -#endif - opt_root(rootp); -#ifdef BDEBUG - if (dflag > 1) { - printf("after opt_root()\n"); - opt_dump(root); - } -#endif - opt_cleanup(); -} - -static void -make_marks(p) - struct block *p; -{ - if (!isMarked(p)) { - Mark(p); - if (BPF_CLASS(p->s.code) != BPF_RET) { - make_marks(JT(p)); - make_marks(JF(p)); - } - } -} - -/* - * Mark code array such that isMarked(i) is true - * only for nodes that are alive. - */ -static void -mark_code(p) - struct block *p; -{ - cur_mark += 1; - make_marks(p); -} - -/* - * True iff the two stmt lists load the same value from the packet into - * the accumulator. - */ -static int -eq_slist(x, y) - struct slist *x, *y; -{ - while (1) { - while (x && x->s.code == NOP) - x = x->next; - while (y && y->s.code == NOP) - y = y->next; - if (x == 0) - return y == 0; - if (y == 0) - return x == 0; - if (x->s.code != y->s.code || x->s.k != y->s.k) - return 0; - x = x->next; - y = y->next; - } -} - -static inline int -eq_blk(b0, b1) - struct block *b0, *b1; -{ - if (b0->s.code == b1->s.code && - b0->s.k == b1->s.k && - b0->et.succ == b1->et.succ && - b0->ef.succ == b1->ef.succ) - return eq_slist(b0->stmts, b1->stmts); - return 0; -} - -static void -intern_blocks(root) - struct block *root; -{ - struct block *p; - int i, j; - int done1; /* don't shadow global */ - top: - done1 = 1; - for (i = 0; i < n_blocks; ++i) - blocks[i]->link = 0; - - mark_code(root); - - for (i = n_blocks - 1; --i >= 0; ) { - if (!isMarked(blocks[i])) - continue; - for (j = i + 1; j < n_blocks; ++j) { - if (!isMarked(blocks[j])) - continue; - if (eq_blk(blocks[i], blocks[j])) { - blocks[i]->link = blocks[j]->link ? - blocks[j]->link : blocks[j]; - break; - } - } - } - for (i = 0; i < n_blocks; ++i) { - p = blocks[i]; - if (JT(p) == 0) - continue; - if (JT(p)->link) { - done1 = 0; - JT(p) = JT(p)->link; - } - if (JF(p)->link) { - done1 = 0; - JF(p) = JF(p)->link; - } - } - if (!done1) - goto top; -} - -static void -opt_cleanup() -{ - free((void *)vnode_base); - free((void *)vmap); - free((void *)edges); - free((void *)space); - free((void *)levels); - free((void *)blocks); -} - -/* - * Return the number of stmts in 's'. - */ -static int -slength(s) - struct slist *s; -{ - int n = 0; - - for (; s; s = s->next) - if (s->s.code != NOP) - ++n; - return n; -} - -/* - * Return the number of nodes reachable by 'p'. - * All nodes should be initially unmarked. - */ -static int -count_blocks(p) - struct block *p; -{ - if (p == 0 || isMarked(p)) - return 0; - Mark(p); - return count_blocks(JT(p)) + count_blocks(JF(p)) + 1; -} - -/* - * Do a depth first search on the flow graph, numbering the - * the basic blocks, and entering them into the 'blocks' array.` - */ -static void -number_blks_r(p) - struct block *p; -{ - int n; - - if (p == 0 || isMarked(p)) - return; - - Mark(p); - n = n_blocks++; - p->id = n; - blocks[n] = p; - - number_blks_r(JT(p)); - number_blks_r(JF(p)); -} - -/* - * Return the number of stmts in the flowgraph reachable by 'p'. - * The nodes should be unmarked before calling. - * - * Note that "stmts" means "instructions", and that this includes - * - * side-effect statements in 'p' (slength(p->stmts)); - * - * statements in the true branch from 'p' (count_stmts(JT(p))); - * - * statements in the false branch from 'p' (count_stmts(JF(p))); - * - * the conditional jump itself (1); - * - * an extra long jump if the true branch requires it (p->longjt); - * - * an extra long jump if the false branch requires it (p->longjf). - */ -static int -count_stmts(p) - struct block *p; -{ - int n; - - if (p == 0 || isMarked(p)) - return 0; - Mark(p); - n = count_stmts(JT(p)) + count_stmts(JF(p)); - return slength(p->stmts) + n + 1 + p->longjt + p->longjf; -} - -/* - * Allocate memory. All allocation is done before optimization - * is begun. A linear bound on the size of all data structures is computed - * from the total number of blocks and/or statements. - */ -static void -opt_init(root) - struct block *root; -{ - bpf_u_int32 *p; - int i, n, max_stmts; - - /* - * First, count the blocks, so we can malloc an array to map - * block number to block. Then, put the blocks into the array. - */ - unMarkAll(); - n = count_blocks(root); - blocks = (struct block **)calloc(n, sizeof(*blocks)); - if (blocks == NULL) - bpf_error("malloc"); - unMarkAll(); - n_blocks = 0; - number_blks_r(root); - - n_edges = 2 * n_blocks; - edges = (struct edge **)calloc(n_edges, sizeof(*edges)); - if (edges == NULL) - bpf_error("malloc"); - - /* - * The number of levels is bounded by the number of nodes. - */ - levels = (struct block **)calloc(n_blocks, sizeof(*levels)); - if (levels == NULL) - bpf_error("malloc"); - - edgewords = n_edges / (8 * sizeof(bpf_u_int32)) + 1; - nodewords = n_blocks / (8 * sizeof(bpf_u_int32)) + 1; - - /* XXX */ - space = (bpf_u_int32 *)malloc(2 * n_blocks * nodewords * sizeof(*space) - + n_edges * edgewords * sizeof(*space)); - if (space == NULL) - bpf_error("malloc"); - p = space; - all_dom_sets = p; - for (i = 0; i < n; ++i) { - blocks[i]->dom = p; - p += nodewords; - } - all_closure_sets = p; - for (i = 0; i < n; ++i) { - blocks[i]->closure = p; - p += nodewords; - } - all_edge_sets = p; - for (i = 0; i < n; ++i) { - register struct block *b = blocks[i]; - - b->et.edom = p; - p += edgewords; - b->ef.edom = p; - p += edgewords; - b->et.id = i; - edges[i] = &b->et; - b->ef.id = n_blocks + i; - edges[n_blocks + i] = &b->ef; - b->et.pred = b; - b->ef.pred = b; - } - max_stmts = 0; - for (i = 0; i < n; ++i) - max_stmts += slength(blocks[i]->stmts) + 1; - /* - * We allocate at most 3 value numbers per statement, - * so this is an upper bound on the number of valnodes - * we'll need. - */ - maxval = 3 * max_stmts; - vmap = (struct vmapinfo *)calloc(maxval, sizeof(*vmap)); - vnode_base = (struct valnode *)calloc(maxval, sizeof(*vnode_base)); - if (vmap == NULL || vnode_base == NULL) - bpf_error("malloc"); -} - -/* - * Some pointers used to convert the basic block form of the code, - * into the array form that BPF requires. 'fstart' will point to - * the malloc'd array while 'ftail' is used during the recursive traversal. - */ -static struct bpf_insn *fstart; -static struct bpf_insn *ftail; - -#ifdef BDEBUG -int bids[1000]; -#endif - -/* - * Returns true if successful. Returns false if a branch has - * an offset that is too large. If so, we have marked that - * branch so that on a subsequent iteration, it will be treated - * properly. - */ -static int -convert_code_r(p) - struct block *p; -{ - struct bpf_insn *dst; - struct slist *src; - int slen; - u_int off; - int extrajmps; /* number of extra jumps inserted */ - struct slist **offset = NULL; - - if (p == 0 || isMarked(p)) - return (1); - Mark(p); - - if (convert_code_r(JF(p)) == 0) - return (0); - if (convert_code_r(JT(p)) == 0) - return (0); - - slen = slength(p->stmts); - dst = ftail -= (slen + 1 + p->longjt + p->longjf); - /* inflate length by any extra jumps */ - - p->offset = dst - fstart; - - /* generate offset[] for convenience */ - if (slen) { - offset = (struct slist **)calloc(slen, sizeof(struct slist *)); - if (!offset) { - bpf_error("not enough core"); - /*NOTREACHED*/ - } - } - src = p->stmts; - for (off = 0; off < slen && src; off++) { -#if 0 - printf("off=%d src=%x\n", off, src); -#endif - offset[off] = src; - src = src->next; - } - - off = 0; - for (src = p->stmts; src; src = src->next) { - if (src->s.code == NOP) - continue; - dst->code = (u_short)src->s.code; - dst->k = src->s.k; - - /* fill block-local relative jump */ - if (BPF_CLASS(src->s.code) != BPF_JMP || src->s.code == (BPF_JMP|BPF_JA)) { -#if 0 - if (src->s.jt || src->s.jf) { - bpf_error("illegal jmp destination"); - /*NOTREACHED*/ - } -#endif - goto filled; - } - if (off == slen - 2) /*???*/ - goto filled; - - { - int i; - int jt, jf; - const char *ljerr = "%s for block-local relative jump: off=%d"; - -#if 0 - printf("code=%x off=%d %x %x\n", src->s.code, - off, src->s.jt, src->s.jf); -#endif - - if (!src->s.jt || !src->s.jf) { - bpf_error(ljerr, "no jmp destination", off); - /*NOTREACHED*/ - } - - jt = jf = 0; - for (i = 0; i < slen; i++) { - if (offset[i] == src->s.jt) { - if (jt) { - bpf_error(ljerr, "multiple matches", off); - /*NOTREACHED*/ - } - - dst->jt = i - off - 1; - jt++; - } - if (offset[i] == src->s.jf) { - if (jf) { - bpf_error(ljerr, "multiple matches", off); - /*NOTREACHED*/ - } - dst->jf = i - off - 1; - jf++; - } - } - if (!jt || !jf) { - bpf_error(ljerr, "no destination found", off); - /*NOTREACHED*/ - } - } -filled: - ++dst; - ++off; - } - if (offset) - free(offset); - -#ifdef BDEBUG - bids[dst - fstart] = p->id + 1; -#endif - dst->code = (u_short)p->s.code; - dst->k = p->s.k; - if (JT(p)) { - extrajmps = 0; - off = JT(p)->offset - (p->offset + slen) - 1; - if (off >= 256) { - /* offset too large for branch, must add a jump */ - if (p->longjt == 0) { - /* mark this instruction and retry */ - p->longjt++; - return(0); - } - /* branch if T to following jump */ - dst->jt = extrajmps; - extrajmps++; - dst[extrajmps].code = BPF_JMP|BPF_JA; - dst[extrajmps].k = off - extrajmps; - } - else - dst->jt = off; - off = JF(p)->offset - (p->offset + slen) - 1; - if (off >= 256) { - /* offset too large for branch, must add a jump */ - if (p->longjf == 0) { - /* mark this instruction and retry */ - p->longjf++; - return(0); - } - /* branch if F to following jump */ - /* if two jumps are inserted, F goes to second one */ - dst->jf = extrajmps; - extrajmps++; - dst[extrajmps].code = BPF_JMP|BPF_JA; - dst[extrajmps].k = off - extrajmps; - } - else - dst->jf = off; - } - return (1); -} - - -/* - * Convert flowgraph intermediate representation to the - * BPF array representation. Set *lenp to the number of instructions. - * - * This routine does *NOT* leak the memory pointed to by fp. It *must - * not* do free(fp) before returning fp; doing so would make no sense, - * as the BPF array pointed to by the return value of icode_to_fcode() - * must be valid - it's being returned for use in a bpf_program structure. - * - * If it appears that icode_to_fcode() is leaking, the problem is that - * the program using pcap_compile() is failing to free the memory in - * the BPF program when it's done - the leak is in the program, not in - * the routine that happens to be allocating the memory. (By analogy, if - * a program calls fopen() without ever calling fclose() on the FILE *, - * it will leak the FILE structure; the leak is not in fopen(), it's in - * the program.) Change the program to use pcap_freecode() when it's - * done with the filter program. See the pcap man page. - */ -struct bpf_insn * -icode_to_fcode(root, lenp) - struct block *root; - int *lenp; -{ - int n; - struct bpf_insn *fp; - - /* - * Loop doing convert_code_r() until no branches remain - * with too-large offsets. - */ - while (1) { - unMarkAll(); - n = *lenp = count_stmts(root); - - fp = (struct bpf_insn *)malloc(sizeof(*fp) * n); - if (fp == NULL) - bpf_error("malloc"); - memset((char *)fp, 0, sizeof(*fp) * n); - fstart = fp; - ftail = fp + n; - - unMarkAll(); - if (convert_code_r(root)) - break; - free(fp); - } - - return fp; -} - -/* - * Make a copy of a BPF program and put it in the "fcode" member of - * a "pcap_t". - * - * If we fail to allocate memory for the copy, fill in the "errbuf" - * member of the "pcap_t" with an error message, and return -1; - * otherwise, return 0. - */ -int -install_bpf_program(pcap_t *p, struct bpf_program *fp) -{ - size_t prog_size; - - /* - * Free up any already installed program. - */ - pcap_freecode(&p->fcode); - - prog_size = sizeof(*fp->bf_insns) * fp->bf_len; - p->fcode.bf_len = fp->bf_len; - p->fcode.bf_insns = (struct bpf_insn *)malloc(prog_size); - if (p->fcode.bf_insns == NULL) { - snprintf(p->errbuf, sizeof(p->errbuf), - "malloc: %s", pcap_strerror(errno)); - return (-1); - } - memcpy(p->fcode.bf_insns, fp->bf_insns, prog_size); - return (0); -} - -#ifdef BDEBUG -static void -opt_dump(root) - struct block *root; -{ - struct bpf_program f; - - memset(bids, 0, sizeof bids); - f.bf_insns = icode_to_fcode(root, &f.bf_len); - bpf_dump(&f, 1); - putchar('\n'); - free((char *)f.bf_insns); -} -#endif diff --git a/contrib/libpcap/packaging/pcap.spec b/contrib/libpcap/packaging/pcap.spec deleted file mode 100644 index 7df7abc..0000000 --- a/contrib/libpcap/packaging/pcap.spec +++ /dev/null @@ -1,65 +0,0 @@ -%define prefix /usr -%define version 0.9.4 - -Summary: packet capture library -Name: libpcap -Version: %version -Release: 1 -Group: Development/Libraries -Copyright: BSD -Source: libpcap-0.9.4.tar.gz -BuildRoot: /tmp/%{name}-buildroot -URL: http://www.tcpdump.org - -%description -Packet-capture library LIBPCAP 0.9.4 -Now maintained by "The Tcpdump Group" -See http://www.tcpdump.org -Please send inquiries/comments/reports to tcpdump-workers@tcpdump.org - -%prep -%setup - -%post -ldconfig - -%build -CFLAGS="$RPM_OPT_FLAGS" ./configure --prefix=%prefix -make - -%install -rm -rf $RPM_BUILD_ROOT -mkdir -p $RPM_BUILD_ROOT/usr/{lib,include} -mkdir -p $RPM_BUILD_ROOT/usr/share/man -mkdir -p $RPM_BUILD_ROOT/usr/include/net -mkdir -p $RPM_BUILD_ROOT/usr/man/man3 -make install DESTDIR=$RPM_BUILD_ROOT mandir=/usr/share/man -cd $RPM_BUILD_ROOT/usr/lib -V1=`echo 0.9.4 | sed 's/\\.[^\.]*$//g'` -V2=`echo 0.9.4 | sed 's/\\.[^\.]*\.[^\.]*$//g'` -ln -sf libpcap.so.0.9.4 libpcap.so.$V1 -if test "$V2" -ne "$V1"; then - ln -sf libpcap.so.$V1 libpcap.so.$V2 - ln -sf libpcap.so.$V2 libpcap.so -else - ln -sf libpcap.so.$V1 libpcap.so -fi - -#install -m 755 -o root libpcap.a $RPM_BUILD_ROOT/usr/lib -#install -m 644 -o root pcap.3 $RPM_BUILD_ROOT/usr/man/man3 -#install -m 644 -o root pcap.h $RPM_BUILD_ROOT/usr/include -#install -m 644 -o root pcap-bpf.h $RPM_BUILD_ROOT/usr/include/net -#install -m 644 -o root pcap-namedb.h $RPM_BUILD_ROOT/usr/include - -%clean -rm -rf $RPM_BUILD_ROOT - -%files -%defattr(-,root,root) -%doc LICENSE CHANGES INSTALL.txt README.linux TODO VERSION CREDITS packaging/pcap.spec -/usr/lib/libpcap.a -/usr/share/man/man3/* -/usr/include/pcap.h -/usr/include/pcap-bpf.h -/usr/include/pcap-namedb.h -/usr/lib/libpcap.so* diff --git a/contrib/libpcap/packaging/pcap.spec.in b/contrib/libpcap/packaging/pcap.spec.in deleted file mode 100644 index 388427e..0000000 --- a/contrib/libpcap/packaging/pcap.spec.in +++ /dev/null @@ -1,65 +0,0 @@ -%define prefix /usr -%define version @VERSION@ - -Summary: packet capture library -Name: libpcap -Version: %version -Release: 1 -Group: Development/Libraries -Copyright: BSD -Source: @NAME@.tar.gz -BuildRoot: /tmp/%{name}-buildroot -URL: http://www.tcpdump.org - -%description -Packet-capture library LIBPCAP @VERSION@ -Now maintained by "The Tcpdump Group" -See http://www.tcpdump.org -Please send inquiries/comments/reports to tcpdump-workers@tcpdump.org - -%prep -%setup - -%post -ldconfig - -%build -CFLAGS="$RPM_OPT_FLAGS" ./configure --prefix=%prefix -make - -%install -rm -rf $RPM_BUILD_ROOT -mkdir -p $RPM_BUILD_ROOT/usr/{lib,include} -mkdir -p $RPM_BUILD_ROOT/usr/share/man -mkdir -p $RPM_BUILD_ROOT/usr/include/net -mkdir -p $RPM_BUILD_ROOT/usr/man/man3 -make install DESTDIR=$RPM_BUILD_ROOT mandir=/usr/share/man -cd $RPM_BUILD_ROOT/usr/lib -V1=`echo @VERSION@ | sed 's/\\.[^\.]*$//g'` -V2=`echo @VERSION@ | sed 's/\\.[^\.]*\.[^\.]*$//g'` -ln -sf libpcap.so.@VERSION@ libpcap.so.$V1 -if test "$V2" -ne "$V1"; then - ln -sf libpcap.so.$V1 libpcap.so.$V2 - ln -sf libpcap.so.$V2 libpcap.so -else - ln -sf libpcap.so.$V1 libpcap.so -fi - -#install -m 755 -o root libpcap.a $RPM_BUILD_ROOT/usr/lib -#install -m 644 -o root pcap.3 $RPM_BUILD_ROOT/usr/man/man3 -#install -m 644 -o root pcap.h $RPM_BUILD_ROOT/usr/include -#install -m 644 -o root pcap-bpf.h $RPM_BUILD_ROOT/usr/include/net -#install -m 644 -o root pcap-namedb.h $RPM_BUILD_ROOT/usr/include - -%clean -rm -rf $RPM_BUILD_ROOT - -%files -%defattr(-,root,root) -%doc LICENSE CHANGES INSTALL.txt README.linux TODO VERSION CREDITS packaging/pcap.spec -/usr/lib/libpcap.a -/usr/share/man/man3/* -/usr/include/pcap.h -/usr/include/pcap-bpf.h -/usr/include/pcap-namedb.h -/usr/lib/libpcap.so* diff --git a/contrib/libpcap/pcap-bpf.c b/contrib/libpcap/pcap-bpf.c deleted file mode 100644 index 027913e..0000000 --- a/contrib/libpcap/pcap-bpf.c +++ /dev/null @@ -1,1158 +0,0 @@ -/* - * Copyright (c) 1993, 1994, 1995, 1996, 1998 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/pcap-bpf.c,v 1.86.2.12 2007/06/15 17:57:27 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <sys/param.h> /* optionally get BSD define */ -#include <sys/time.h> -#include <sys/timeb.h> -#include <sys/socket.h> -#include <sys/file.h> -#include <sys/ioctl.h> -#include <sys/utsname.h> - -#include <net/if.h> - -#ifdef _AIX - -/* - * Make "pcap.h" not include "pcap-bpf.h"; we are going to include the - * native OS version, as we need "struct bpf_config" from it. - */ -#define PCAP_DONT_INCLUDE_PCAP_BPF_H - -#include <sys/types.h> - -/* - * Prevent bpf.h from redefining the DLT_ values to their - * IFT_ values, as we're going to return the standard libpcap - * values, not IBM's non-standard IFT_ values. - */ -#undef _AIX -#include <net/bpf.h> -#define _AIX - -#include <net/if_types.h> /* for IFT_ values */ -#include <sys/sysconfig.h> -#include <sys/device.h> -#include <sys/cfgodm.h> -#include <cf.h> - -#ifdef __64BIT__ -#define domakedev makedev64 -#define getmajor major64 -#define bpf_hdr bpf_hdr32 -#else /* __64BIT__ */ -#define domakedev makedev -#define getmajor major -#endif /* __64BIT__ */ - -#define BPF_NAME "bpf" -#define BPF_MINORS 4 -#define DRIVER_PATH "/usr/lib/drivers" -#define BPF_NODE "/dev/bpf" -static int bpfloadedflag = 0; -static int odmlockid = 0; - -#else /* _AIX */ - -#include <net/bpf.h> - -#endif /* _AIX */ - -#include <ctype.h> -#include <errno.h> -#include <netdb.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include "pcap-int.h" - -#ifdef HAVE_DAG_API -#include "pcap-dag.h" -#endif /* HAVE_DAG_API */ - -#ifdef HAVE_OS_PROTO_H -#include "os-proto.h" -#endif - -#include "gencode.h" /* for "no_optimize" */ - -static int pcap_setfilter_bpf(pcap_t *p, struct bpf_program *fp); -static int pcap_setdirection_bpf(pcap_t *, pcap_direction_t); -static int pcap_set_datalink_bpf(pcap_t *p, int dlt); - -static int -pcap_stats_bpf(pcap_t *p, struct pcap_stat *ps) -{ - struct bpf_stat s; - - /* - * "ps_recv" counts packets handed to the filter, not packets - * that passed the filter. This includes packets later dropped - * because we ran out of buffer space. - * - * "ps_drop" counts packets dropped inside the BPF device - * because we ran out of buffer space. It doesn't count - * packets dropped by the interface driver. It counts - * only packets that passed the filter. - * - * Both statistics include packets not yet read from the kernel - * by libpcap, and thus not yet seen by the application. - */ - if (ioctl(p->fd, BIOCGSTATS, (caddr_t)&s) < 0) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "BIOCGSTATS: %s", - pcap_strerror(errno)); - return (-1); - } - - ps->ps_recv = s.bs_recv; - ps->ps_drop = s.bs_drop; - return (0); -} - -static int -pcap_read_bpf(pcap_t *p, int cnt, pcap_handler callback, u_char *user) -{ - int cc; - int n = 0; - register u_char *bp, *ep; - u_char *datap; - struct bpf_insn *fcode; -#ifdef PCAP_FDDIPAD - register int pad; -#endif - - fcode = p->md.use_bpf ? NULL : p->fcode.bf_insns; - again: - /* - * Has "pcap_breakloop()" been called? - */ - if (p->break_loop) { - /* - * Yes - clear the flag that indicates that it - * has, and return -2 to indicate that we were - * told to break out of the loop. - */ - p->break_loop = 0; - return (-2); - } - cc = p->cc; - if (p->cc == 0) { - cc = read(p->fd, (char *)p->buffer, p->bufsize); - if (cc < 0) { - /* Don't choke when we get ptraced */ - switch (errno) { - - case EINTR: - goto again; - -#ifdef _AIX - case EFAULT: - /* - * Sigh. More AIX wonderfulness. - * - * For some unknown reason the uiomove() - * operation in the bpf kernel extension - * used to copy the buffer into user - * space sometimes returns EFAULT. I have - * no idea why this is the case given that - * a kernel debugger shows the user buffer - * is correct. This problem appears to - * be mostly mitigated by the memset of - * the buffer before it is first used. - * Very strange.... Shaun Clowes - * - * In any case this means that we shouldn't - * treat EFAULT as a fatal error; as we - * don't have an API for returning - * a "some packets were dropped since - * the last packet you saw" indication, - * we just ignore EFAULT and keep reading. - */ - goto again; -#endif - - case EWOULDBLOCK: - return (0); -#if defined(sun) && !defined(BSD) - /* - * Due to a SunOS bug, after 2^31 bytes, the kernel - * file offset overflows and read fails with EINVAL. - * The lseek() to 0 will fix things. - */ - case EINVAL: - if (lseek(p->fd, 0L, SEEK_CUR) + - p->bufsize < 0) { - (void)lseek(p->fd, 0L, SEEK_SET); - goto again; - } - /* fall through */ -#endif - } - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "read: %s", - pcap_strerror(errno)); - return (-1); - } - bp = p->buffer; - } else - bp = p->bp; - - /* - * Loop through each packet. - */ -#define bhp ((struct bpf_hdr *)bp) - ep = bp + cc; -#ifdef PCAP_FDDIPAD - pad = p->fddipad; -#endif - while (bp < ep) { - register int caplen, hdrlen; - - /* - * Has "pcap_breakloop()" been called? - * If so, return immediately - if we haven't read any - * packets, clear the flag and return -2 to indicate - * that we were told to break out of the loop, otherwise - * leave the flag set, so that the *next* call will break - * out of the loop without having read any packets, and - * return the number of packets we've processed so far. - */ - if (p->break_loop) { - if (n == 0) { - p->break_loop = 0; - return (-2); - } else { - p->bp = bp; - p->cc = ep - bp; - return (n); - } - } - - caplen = bhp->bh_caplen; - hdrlen = bhp->bh_hdrlen; - datap = bp + hdrlen; - /* - * Short-circuit evaluation: if using BPF filter - * in kernel, no need to do it now. - * -#ifdef PCAP_FDDIPAD - * Note: the filter code was generated assuming - * that p->fddipad was the amount of padding - * before the header, as that's what's required - * in the kernel, so we run the filter before - * skipping that padding. -#endif - */ - if (fcode == NULL || - bpf_filter(fcode, datap, bhp->bh_datalen, caplen)) { - struct pcap_pkthdr pkthdr; - - pkthdr.ts.tv_sec = bhp->bh_tstamp.tv_sec; -#ifdef _AIX - /* - * AIX's BPF returns seconds/nanoseconds time - * stamps, not seconds/microseconds time stamps. - */ - pkthdr.ts.tv_usec = bhp->bh_tstamp.tv_usec/1000; -#else - pkthdr.ts.tv_usec = bhp->bh_tstamp.tv_usec; -#endif -#ifdef PCAP_FDDIPAD - if (caplen > pad) - pkthdr.caplen = caplen - pad; - else - pkthdr.caplen = 0; - if (bhp->bh_datalen > pad) - pkthdr.len = bhp->bh_datalen - pad; - else - pkthdr.len = 0; - datap += pad; -#else - pkthdr.caplen = caplen; - pkthdr.len = bhp->bh_datalen; -#endif - (*callback)(user, &pkthdr, datap); - bp += BPF_WORDALIGN(caplen + hdrlen); - if (++n >= cnt && cnt > 0) { - p->bp = bp; - p->cc = ep - bp; - return (n); - } - } else { - /* - * Skip this packet. - */ - bp += BPF_WORDALIGN(caplen + hdrlen); - } - } -#undef bhp - p->cc = 0; - return (n); -} - -static int -pcap_inject_bpf(pcap_t *p, const void *buf, size_t size) -{ - int ret; - - ret = write(p->fd, buf, size); -#ifdef __APPLE__ - if (ret == -1 && errno == EAFNOSUPPORT) { - /* - * In Mac OS X, there's a bug wherein setting the - * BIOCSHDRCMPLT flag causes writes to fail; see, - * for example: - * - * http://cerberus.sourcefire.com/~jeff/archives/patches/macosx/BIOCSHDRCMPLT-10.3.3.patch - * - * So, if, on OS X, we get EAFNOSUPPORT from the write, we - * assume it's due to that bug, and turn off that flag - * and try again. If we succeed, it either means that - * somebody applied the fix from that URL, or other patches - * for that bug from - * - * http://cerberus.sourcefire.com/~jeff/archives/patches/macosx/ - * - * and are running a Darwin kernel with those fixes, or - * that Apple fixed the problem in some OS X release. - */ - u_int spoof_eth_src = 0; - - if (ioctl(p->fd, BIOCSHDRCMPLT, &spoof_eth_src) == -1) { - (void)snprintf(p->errbuf, PCAP_ERRBUF_SIZE, - "send: can't turn off BIOCSHDRCMPLT: %s", - pcap_strerror(errno)); - return (-1); - } - - /* - * Now try the write again. - */ - ret = write(p->fd, buf, size); - } -#endif /* __APPLE__ */ - if (ret == -1) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "send: %s", - pcap_strerror(errno)); - return (-1); - } - return (ret); -} - -#ifdef _AIX -static int -bpf_odminit(char *errbuf) -{ - char *errstr; - - if (odm_initialize() == -1) { - if (odm_err_msg(odmerrno, &errstr) == -1) - errstr = "Unknown error"; - snprintf(errbuf, PCAP_ERRBUF_SIZE, - "bpf_load: odm_initialize failed: %s", - errstr); - return (-1); - } - - if ((odmlockid = odm_lock("/etc/objrepos/config_lock", ODM_WAIT)) == -1) { - if (odm_err_msg(odmerrno, &errstr) == -1) - errstr = "Unknown error"; - snprintf(errbuf, PCAP_ERRBUF_SIZE, - "bpf_load: odm_lock of /etc/objrepos/config_lock failed: %s", - errstr); - return (-1); - } - - return (0); -} - -static int -bpf_odmcleanup(char *errbuf) -{ - char *errstr; - - if (odm_unlock(odmlockid) == -1) { - if (odm_err_msg(odmerrno, &errstr) == -1) - errstr = "Unknown error"; - snprintf(errbuf, PCAP_ERRBUF_SIZE, - "bpf_load: odm_unlock failed: %s", - errstr); - return (-1); - } - - if (odm_terminate() == -1) { - if (odm_err_msg(odmerrno, &errstr) == -1) - errstr = "Unknown error"; - snprintf(errbuf, PCAP_ERRBUF_SIZE, - "bpf_load: odm_terminate failed: %s", - errstr); - return (-1); - } - - return (0); -} - -static int -bpf_load(char *errbuf) -{ - long major; - int *minors; - int numminors, i, rc; - char buf[1024]; - struct stat sbuf; - struct bpf_config cfg_bpf; - struct cfg_load cfg_ld; - struct cfg_kmod cfg_km; - - /* - * This is very very close to what happens in the real implementation - * but I've fixed some (unlikely) bug situations. - */ - if (bpfloadedflag) - return (0); - - if (bpf_odminit(errbuf) != 0) - return (-1); - - major = genmajor(BPF_NAME); - if (major == -1) { - snprintf(errbuf, PCAP_ERRBUF_SIZE, - "bpf_load: genmajor failed: %s", pcap_strerror(errno)); - return (-1); - } - - minors = getminor(major, &numminors, BPF_NAME); - if (!minors) { - minors = genminor("bpf", major, 0, BPF_MINORS, 1, 1); - if (!minors) { - snprintf(errbuf, PCAP_ERRBUF_SIZE, - "bpf_load: genminor failed: %s", - pcap_strerror(errno)); - return (-1); - } - } - - if (bpf_odmcleanup(errbuf)) - return (-1); - - rc = stat(BPF_NODE "0", &sbuf); - if (rc == -1 && errno != ENOENT) { - snprintf(errbuf, PCAP_ERRBUF_SIZE, - "bpf_load: can't stat %s: %s", - BPF_NODE "0", pcap_strerror(errno)); - return (-1); - } - - if (rc == -1 || getmajor(sbuf.st_rdev) != major) { - for (i = 0; i < BPF_MINORS; i++) { - sprintf(buf, "%s%d", BPF_NODE, i); - unlink(buf); - if (mknod(buf, S_IRUSR | S_IFCHR, domakedev(major, i)) == -1) { - snprintf(errbuf, PCAP_ERRBUF_SIZE, - "bpf_load: can't mknod %s: %s", - buf, pcap_strerror(errno)); - return (-1); - } - } - } - - /* Check if the driver is loaded */ - memset(&cfg_ld, 0x0, sizeof(cfg_ld)); - cfg_ld.path = buf; - sprintf(cfg_ld.path, "%s/%s", DRIVER_PATH, BPF_NAME); - if ((sysconfig(SYS_QUERYLOAD, (void *)&cfg_ld, sizeof(cfg_ld)) == -1) || - (cfg_ld.kmid == 0)) { - /* Driver isn't loaded, load it now */ - if (sysconfig(SYS_SINGLELOAD, (void *)&cfg_ld, sizeof(cfg_ld)) == -1) { - snprintf(errbuf, PCAP_ERRBUF_SIZE, - "bpf_load: could not load driver: %s", - strerror(errno)); - return (-1); - } - } - - /* Configure the driver */ - cfg_km.cmd = CFG_INIT; - cfg_km.kmid = cfg_ld.kmid; - cfg_km.mdilen = sizeof(cfg_bpf); - cfg_km.mdiptr = (void *)&cfg_bpf; - for (i = 0; i < BPF_MINORS; i++) { - cfg_bpf.devno = domakedev(major, i); - if (sysconfig(SYS_CFGKMOD, (void *)&cfg_km, sizeof(cfg_km)) == -1) { - snprintf(errbuf, PCAP_ERRBUF_SIZE, - "bpf_load: could not configure driver: %s", - strerror(errno)); - return (-1); - } - } - - bpfloadedflag = 1; - - return (0); -} -#endif - -static inline int -bpf_open(pcap_t *p, char *errbuf) -{ - int fd; -#ifdef HAVE_CLONING_BPF - static const char device[] = "/dev/bpf"; -#else - int n = 0; - char device[sizeof "/dev/bpf0000000000"]; -#endif - -#ifdef _AIX - /* - * Load the bpf driver, if it isn't already loaded, - * and create the BPF device entries, if they don't - * already exist. - */ - if (bpf_load(errbuf) == -1) - return (-1); -#endif - -#ifdef HAVE_CLONING_BPF - if ((fd = open(device, O_RDWR)) == -1 && - (errno != EACCES || (fd = open(device, O_RDONLY)) == -1)) - snprintf(errbuf, PCAP_ERRBUF_SIZE, - "(cannot open device) %s: %s", device, pcap_strerror(errno)); -#else - /* - * Go through all the minors and find one that isn't in use. - */ - do { - (void)snprintf(device, sizeof(device), "/dev/bpf%d", n++); - /* - * Initially try a read/write open (to allow the inject - * method to work). If that fails due to permission - * issues, fall back to read-only. This allows a - * non-root user to be granted specific access to pcap - * capabilities via file permissions. - * - * XXX - we should have an API that has a flag that - * controls whether to open read-only or read-write, - * so that denial of permission to send (or inability - * to send, if sending packets isn't supported on - * the device in question) can be indicated at open - * time. - */ - fd = open(device, O_RDWR); - if (fd == -1 && errno == EACCES) - fd = open(device, O_RDONLY); - } while (fd < 0 && errno == EBUSY); - - /* - * XXX better message for all minors used - */ - if (fd < 0) - snprintf(errbuf, PCAP_ERRBUF_SIZE, "(no devices found) %s: %s", - device, pcap_strerror(errno)); -#endif - - return (fd); -} - -/* - * We include the OS's <net/bpf.h>, not our "pcap-bpf.h", so we probably - * don't get DLT_DOCSIS defined. - */ -#ifndef DLT_DOCSIS -#define DLT_DOCSIS 143 -#endif - -pcap_t * -pcap_open_live(const char *device, int snaplen, int promisc, int to_ms, - char *ebuf) -{ - int fd; - struct ifreq ifr; - struct bpf_version bv; -#ifdef BIOCGDLTLIST - struct bpf_dltlist bdl; -#endif -#if defined(BIOCGHDRCMPLT) && defined(BIOCSHDRCMPLT) - u_int spoof_eth_src = 1; -#endif - u_int v; - pcap_t *p; - struct bpf_insn total_insn; - struct bpf_program total_prog; - struct utsname osinfo; - -#ifdef HAVE_DAG_API - if (strstr(device, "dag")) { - return dag_open_live(device, snaplen, promisc, to_ms, ebuf); - } -#endif /* HAVE_DAG_API */ - -#ifdef BIOCGDLTLIST - memset(&bdl, 0, sizeof(bdl)); -#endif - - p = (pcap_t *)malloc(sizeof(*p)); - if (p == NULL) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "malloc: %s", - pcap_strerror(errno)); - return (NULL); - } - memset(p, 0, sizeof(*p)); - fd = bpf_open(p, ebuf); - if (fd < 0) - goto bad; - - p->fd = fd; - p->snapshot = snaplen; - - if (ioctl(fd, BIOCVERSION, (caddr_t)&bv) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "BIOCVERSION: %s", - pcap_strerror(errno)); - goto bad; - } - if (bv.bv_major != BPF_MAJOR_VERSION || - bv.bv_minor < BPF_MINOR_VERSION) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "kernel bpf filter out of date"); - goto bad; - } - - /* - * Try finding a good size for the buffer; 32768 may be too - * big, so keep cutting it in half until we find a size - * that works, or run out of sizes to try. If the default - * is larger, don't make it smaller. - * - * XXX - there should be a user-accessible hook to set the - * initial buffer size. - */ - if ((ioctl(fd, BIOCGBLEN, (caddr_t)&v) < 0) || v < 32768) - v = 32768; - for ( ; v != 0; v >>= 1) { - /* Ignore the return value - this is because the call fails - * on BPF systems that don't have kernel malloc. And if - * the call fails, it's no big deal, we just continue to - * use the standard buffer size. - */ - (void) ioctl(fd, BIOCSBLEN, (caddr_t)&v); - - (void)strncpy(ifr.ifr_name, device, sizeof(ifr.ifr_name)); - if (ioctl(fd, BIOCSETIF, (caddr_t)&ifr) >= 0) - break; /* that size worked; we're done */ - - if (errno != ENOBUFS) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "BIOCSETIF: %s: %s", - device, pcap_strerror(errno)); - goto bad; - } - } - - if (v == 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "BIOCSBLEN: %s: No buffer size worked", device); - goto bad; - } - - /* Get the data link layer type. */ - if (ioctl(fd, BIOCGDLT, (caddr_t)&v) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "BIOCGDLT: %s", - pcap_strerror(errno)); - goto bad; - } -#ifdef _AIX - /* - * AIX's BPF returns IFF_ types, not DLT_ types, in BIOCGDLT. - */ - switch (v) { - - case IFT_ETHER: - case IFT_ISO88023: - v = DLT_EN10MB; - break; - - case IFT_FDDI: - v = DLT_FDDI; - break; - - case IFT_ISO88025: - v = DLT_IEEE802; - break; - - case IFT_LOOP: - v = DLT_NULL; - break; - - default: - /* - * We don't know what to map this to yet. - */ - snprintf(ebuf, PCAP_ERRBUF_SIZE, "unknown interface type %u", - v); - goto bad; - } -#endif -#if _BSDI_VERSION - 0 >= 199510 - /* The SLIP and PPP link layer header changed in BSD/OS 2.1 */ - switch (v) { - - case DLT_SLIP: - v = DLT_SLIP_BSDOS; - break; - - case DLT_PPP: - v = DLT_PPP_BSDOS; - break; - - case 11: /*DLT_FR*/ - v = DLT_FRELAY; - break; - - case 12: /*DLT_C_HDLC*/ - v = DLT_CHDLC; - break; - } -#endif -#ifdef PCAP_FDDIPAD - if (v == DLT_FDDI) - p->fddipad = PCAP_FDDIPAD; - else - p->fddipad = 0; -#endif - p->linktype = v; - -#ifdef BIOCGDLTLIST - /* - * We know the default link type -- now determine all the DLTs - * this interface supports. If this fails with EINVAL, it's - * not fatal; we just don't get to use the feature later. - */ - if (ioctl(fd, BIOCGDLTLIST, (caddr_t)&bdl) == 0) { - u_int i; - int is_ethernet; - - bdl.bfl_list = (u_int *) malloc(sizeof(u_int) * (bdl.bfl_len + 1)); - if (bdl.bfl_list == NULL) { - (void)snprintf(ebuf, PCAP_ERRBUF_SIZE, "malloc: %s", - pcap_strerror(errno)); - goto bad; - } - - if (ioctl(fd, BIOCGDLTLIST, (caddr_t)&bdl) < 0) { - (void)snprintf(ebuf, PCAP_ERRBUF_SIZE, - "BIOCGDLTLIST: %s", pcap_strerror(errno)); - free(bdl.bfl_list); - goto bad; - } - - /* - * OK, for real Ethernet devices, add DLT_DOCSIS to the - * list, so that an application can let you choose it, - * in case you're capturing DOCSIS traffic that a Cisco - * Cable Modem Termination System is putting out onto - * an Ethernet (it doesn't put an Ethernet header onto - * the wire, it puts raw DOCSIS frames out on the wire - * inside the low-level Ethernet framing). - * - * A "real Ethernet device" is defined here as a device - * that has a link-layer type of DLT_EN10MB and that has - * no alternate link-layer types; that's done to exclude - * 802.11 interfaces (which might or might not be the - * right thing to do, but I suspect it is - Ethernet <-> - * 802.11 bridges would probably badly mishandle frames - * that don't have Ethernet headers). - */ - if (p->linktype == DLT_EN10MB) { - is_ethernet = 1; - for (i = 0; i < bdl.bfl_len; i++) { - if (bdl.bfl_list[i] != DLT_EN10MB) { - is_ethernet = 0; - break; - } - } - if (is_ethernet) { - /* - * We reserved one more slot at the end of - * the list. - */ - bdl.bfl_list[bdl.bfl_len] = DLT_DOCSIS; - bdl.bfl_len++; - } - } - p->dlt_count = bdl.bfl_len; - p->dlt_list = bdl.bfl_list; - } else { - if (errno != EINVAL) { - (void)snprintf(ebuf, PCAP_ERRBUF_SIZE, - "BIOCGDLTLIST: %s", pcap_strerror(errno)); - goto bad; - } - } -#endif - - /* - * If this is an Ethernet device, and we don't have a DLT_ list, - * give it a list with DLT_EN10MB and DLT_DOCSIS. (That'd give - * 802.11 interfaces DLT_DOCSIS, which isn't the right thing to - * do, but there's not much we can do about that without finding - * some other way of determining whether it's an Ethernet or 802.11 - * device.) - */ - if (p->linktype == DLT_EN10MB && p->dlt_count == 0) { - p->dlt_list = (u_int *) malloc(sizeof(u_int) * 2); - /* - * If that fails, just leave the list empty. - */ - if (p->dlt_list != NULL) { - p->dlt_list[0] = DLT_EN10MB; - p->dlt_list[1] = DLT_DOCSIS; - p->dlt_count = 2; - } - } - -#if defined(BIOCGHDRCMPLT) && defined(BIOCSHDRCMPLT) - /* - * Do a BIOCSHDRCMPLT, if defined, to turn that flag on, so - * the link-layer source address isn't forcibly overwritten. - * (Should we ignore errors? Should we do this only if - * we're open for writing?) - * - * XXX - I seem to remember some packet-sending bug in some - * BSDs - check CVS log for "bpf.c"? - */ - if (ioctl(fd, BIOCSHDRCMPLT, &spoof_eth_src) == -1) { - (void)snprintf(ebuf, PCAP_ERRBUF_SIZE, - "BIOCSHDRCMPLT: %s", pcap_strerror(errno)); - goto bad; - } -#endif - /* set timeout */ - if (to_ms != 0) { - /* - * XXX - is this seconds/nanoseconds in AIX? - * (Treating it as such doesn't fix the timeout - * problem described below.) - */ - struct timeval to; - to.tv_sec = to_ms / 1000; - to.tv_usec = (to_ms * 1000) % 1000000; - if (ioctl(p->fd, BIOCSRTIMEOUT, (caddr_t)&to) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "BIOCSRTIMEOUT: %s", - pcap_strerror(errno)); - goto bad; - } - } - -#ifdef _AIX -#ifdef BIOCIMMEDIATE - /* - * Darren Reed notes that - * - * On AIX (4.2 at least), if BIOCIMMEDIATE is not set, the - * timeout appears to be ignored and it waits until the buffer - * is filled before returning. The result of not having it - * set is almost worse than useless if your BPF filter - * is reducing things to only a few packets (i.e. one every - * second or so). - * - * so we turn BIOCIMMEDIATE mode on if this is AIX. - * - * We don't turn it on for other platforms, as that means we - * get woken up for every packet, which may not be what we want; - * in the Winter 1993 USENIX paper on BPF, they say: - * - * Since a process might want to look at every packet on a - * network and the time between packets can be only a few - * microseconds, it is not possible to do a read system call - * per packet and BPF must collect the data from several - * packets and return it as a unit when the monitoring - * application does a read. - * - * which I infer is the reason for the timeout - it means we - * wait that amount of time, in the hopes that more packets - * will arrive and we'll get them all with one read. - * - * Setting BIOCIMMEDIATE mode on FreeBSD (and probably other - * BSDs) causes the timeout to be ignored. - * - * On the other hand, some platforms (e.g., Linux) don't support - * timeouts, they just hand stuff to you as soon as it arrives; - * if that doesn't cause a problem on those platforms, it may - * be OK to have BIOCIMMEDIATE mode on BSD as well. - * - * (Note, though, that applications may depend on the read - * completing, even if no packets have arrived, when the timeout - * expires, e.g. GUI applications that have to check for input - * while waiting for packets to arrive; a non-zero timeout - * prevents "select()" from working right on FreeBSD and - * possibly other BSDs, as the timer doesn't start until a - * "read()" is done, so the timer isn't in effect if the - * application is blocked on a "select()", and the "select()" - * doesn't get woken up for a BPF device until the buffer - * fills up.) - */ - v = 1; - if (ioctl(p->fd, BIOCIMMEDIATE, &v) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "BIOCIMMEDIATE: %s", - pcap_strerror(errno)); - goto bad; - } -#endif /* BIOCIMMEDIATE */ -#endif /* _AIX */ - - if (promisc) { - /* set promiscuous mode, okay if it fails */ - if (ioctl(p->fd, BIOCPROMISC, NULL) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "BIOCPROMISC: %s", - pcap_strerror(errno)); - } - } - - if (ioctl(fd, BIOCGBLEN, (caddr_t)&v) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "BIOCGBLEN: %s", - pcap_strerror(errno)); - goto bad; - } - p->bufsize = v; - p->buffer = (u_char *)malloc(p->bufsize); - if (p->buffer == NULL) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "malloc: %s", - pcap_strerror(errno)); - goto bad; - } -#ifdef _AIX - /* For some strange reason this seems to prevent the EFAULT - * problems we have experienced from AIX BPF. */ - memset(p->buffer, 0x0, p->bufsize); -#endif - - /* - * If there's no filter program installed, there's - * no indication to the kernel of what the snapshot - * length should be, so no snapshotting is done. - * - * Therefore, when we open the device, we install - * an "accept everything" filter with the specified - * snapshot length. - */ - total_insn.code = (u_short)(BPF_RET | BPF_K); - total_insn.jt = 0; - total_insn.jf = 0; - total_insn.k = snaplen; - - total_prog.bf_len = 1; - total_prog.bf_insns = &total_insn; - if (ioctl(p->fd, BIOCSETF, (caddr_t)&total_prog) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "BIOCSETF: %s", - pcap_strerror(errno)); - goto bad; - } - - /* - * On most BPF platforms, either you can do a "select()" or - * "poll()" on a BPF file descriptor and it works correctly, - * or you can do it and it will return "readable" if the - * hold buffer is full but not if the timeout expires *and* - * a non-blocking read will, if the hold buffer is empty - * but the store buffer isn't empty, rotate the buffers - * and return what packets are available. - * - * In the latter case, the fact that a non-blocking read - * will give you the available packets means you can work - * around the failure of "select()" and "poll()" to wake up - * and return "readable" when the timeout expires by using - * the timeout as the "select()" or "poll()" timeout, putting - * the BPF descriptor into non-blocking mode, and read from - * it regardless of whether "select()" reports it as readable - * or not. - * - * However, in FreeBSD 4.3 and 4.4, "select()" and "poll()" - * won't wake up and return "readable" if the timer expires - * and non-blocking reads return EWOULDBLOCK if the hold - * buffer is empty, even if the store buffer is non-empty. - * - * This means the workaround in question won't work. - * - * Therefore, on FreeBSD 4.3 and 4.4, we set "p->selectable_fd" - * to -1, which means "sorry, you can't use 'select()' or 'poll()' - * here". On all other BPF platforms, we set it to the FD for - * the BPF device; in NetBSD, OpenBSD, and Darwin, a non-blocking - * read will, if the hold buffer is empty and the store buffer - * isn't empty, rotate the buffers and return what packets are - * there (and in sufficiently recent versions of OpenBSD - * "select()" and "poll()" should work correctly). - * - * XXX - what about AIX? - */ - p->selectable_fd = p->fd; /* assume select() works until we know otherwise */ - if (uname(&osinfo) == 0) { - /* - * We can check what OS this is. - */ - if (strcmp(osinfo.sysname, "FreeBSD") == 0) { - if (strncmp(osinfo.release, "4.3-", 4) == 0 || - strncmp(osinfo.release, "4.4-", 4) == 0) - p->selectable_fd = -1; - } - } - - p->read_op = pcap_read_bpf; - p->inject_op = pcap_inject_bpf; - p->setfilter_op = pcap_setfilter_bpf; - p->setdirection_op = pcap_setdirection_bpf; - p->set_datalink_op = pcap_set_datalink_bpf; - p->getnonblock_op = pcap_getnonblock_fd; - p->setnonblock_op = pcap_setnonblock_fd; - p->stats_op = pcap_stats_bpf; - p->close_op = pcap_close_common; - - return (p); - bad: - (void)close(fd); - if (p->dlt_list != NULL) - free(p->dlt_list); - free(p); - return (NULL); -} - -int -pcap_platform_finddevs(pcap_if_t **alldevsp, char *errbuf) -{ -#ifdef HAVE_DAG_API - if (dag_platform_finddevs(alldevsp, errbuf) < 0) - return (-1); -#endif /* HAVE_DAG_API */ - - return (0); -} - -static int -pcap_setfilter_bpf(pcap_t *p, struct bpf_program *fp) -{ - /* - * It looks that BPF code generated by gen_protochain() is not - * compatible with some of kernel BPF code (for example BSD/OS 3.1). - * Take a safer side for now. - */ - if (no_optimize) { - /* - * XXX - what if we already have a filter in the kernel? - */ - if (install_bpf_program(p, fp) < 0) - return (-1); - p->md.use_bpf = 0; /* filtering in userland */ - return (0); - } - - /* - * Free any user-mode filter we might happen to have installed. - */ - pcap_freecode(&p->fcode); - - /* - * Try to install the kernel filter. - */ - if (ioctl(p->fd, BIOCSETF, (caddr_t)fp) < 0) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "BIOCSETF: %s", - pcap_strerror(errno)); - return (-1); - } - p->md.use_bpf = 1; /* filtering in the kernel */ - - /* - * Discard any previously-received packets, as they might have - * passed whatever filter was formerly in effect, but might - * not pass this filter (BIOCSETF discards packets buffered - * in the kernel, so you can lose packets in any case). - */ - p->cc = 0; - return (0); -} - -/* - * Set direction flag: Which packets do we accept on a forwarding - * single device? IN, OUT or both? - */ -static int -pcap_setdirection_bpf(pcap_t *p, pcap_direction_t d) -{ -#if defined(BIOCSDIRECTION) - u_int direction; - - direction = (d == PCAP_D_IN) ? BPF_D_IN : - ((d == PCAP_D_OUT) ? BPF_D_OUT : BPF_D_INOUT); - if (ioctl(p->fd, BIOCSDIRECTION, &direction) == -1) { - (void) snprintf(p->errbuf, sizeof(p->errbuf), - "Cannot set direction to %s: %s", - (d == PCAP_D_IN) ? "PCAP_D_IN" : - ((d == PCAP_D_OUT) ? "PCAP_D_OUT" : "PCAP_D_INOUT"), - strerror(errno)); - return (-1); - } - return (0); -#elif defined(BIOCSSEESENT) - u_int seesent; - - /* - * We don't support PCAP_D_OUT. - */ - if (d == PCAP_D_OUT) { - snprintf(p->errbuf, sizeof(p->errbuf), - "Setting direction to PCAP_D_OUT is not supported on BPF"); - return -1; - } - - seesent = (d == PCAP_D_INOUT); - if (ioctl(p->fd, BIOCSSEESENT, &seesent) == -1) { - (void) snprintf(p->errbuf, sizeof(p->errbuf), - "Cannot set direction to %s: %s", - (d == PCAP_D_INOUT) ? "PCAP_D_INOUT" : "PCAP_D_IN", - strerror(errno)); - return (-1); - } - return (0); -#else - (void) snprintf(p->errbuf, sizeof(p->errbuf), - "This system doesn't support BIOCSSEESENT, so the direction can't be set"); - return (-1); -#endif -} - -static int -pcap_set_datalink_bpf(pcap_t *p, int dlt) -{ -#ifdef BIOCSDLT - if (ioctl(p->fd, BIOCSDLT, &dlt) == -1) { - (void) snprintf(p->errbuf, sizeof(p->errbuf), - "Cannot set DLT %d: %s", dlt, strerror(errno)); - return (-1); - } -#endif - return (0); -} diff --git a/contrib/libpcap/pcap-bpf.h b/contrib/libpcap/pcap-bpf.h deleted file mode 100644 index 62c493b..0000000 --- a/contrib/libpcap/pcap-bpf.h +++ /dev/null @@ -1,834 +0,0 @@ -/*- - * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from the Stanford/CMU enet packet filter, - * (net/enet.c) distributed as part of 4.3BSD, and code contributed - * to Berkeley by Steven McCanne and Van Jacobson both of Lawrence - * Berkeley Laboratory. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)bpf.h 7.1 (Berkeley) 5/7/91 - * - * @(#) $Header: /tcpdump/master/libpcap/pcap-bpf.h,v 1.34.2.24 2007/09/19 02:52:12 guy Exp $ (LBL) - */ - -/* - * This is libpcap's cut-down version of bpf.h; it includes only - * the stuff needed for the code generator and the userland BPF - * interpreter, and the libpcap APIs for setting filters, etc.. - * - * "pcap-bpf.c" will include the native OS version, as it deals with - * the OS's BPF implementation. - * - * XXX - should this all just be moved to "pcap.h"? - */ - -#ifndef BPF_MAJOR_VERSION - -#ifdef __cplusplus -extern "C" { -#endif - -/* BSD style release date */ -#define BPF_RELEASE 199606 - -#ifdef MSDOS /* must be 32-bit */ -typedef long bpf_int32; -typedef unsigned long bpf_u_int32; -#else -typedef int bpf_int32; -typedef u_int bpf_u_int32; -#endif - -/* - * Alignment macros. BPF_WORDALIGN rounds up to the next - * even multiple of BPF_ALIGNMENT. - */ -#ifndef __NetBSD__ -#define BPF_ALIGNMENT sizeof(bpf_int32) -#else -#define BPF_ALIGNMENT sizeof(long) -#endif -#define BPF_WORDALIGN(x) (((x)+(BPF_ALIGNMENT-1))&~(BPF_ALIGNMENT-1)) - -#define BPF_MAXINSNS 512 -#define BPF_MAXBUFSIZE 0x8000 -#define BPF_MINBUFSIZE 32 - -/* - * Structure for "pcap_compile()", "pcap_setfilter()", etc.. - */ -struct bpf_program { - u_int bf_len; - struct bpf_insn *bf_insns; -}; - -/* - * Struct return by BIOCVERSION. This represents the version number of - * the filter language described by the instruction encodings below. - * bpf understands a program iff kernel_major == filter_major && - * kernel_minor >= filter_minor, that is, if the value returned by the - * running kernel has the same major number and a minor number equal - * equal to or less than the filter being downloaded. Otherwise, the - * results are undefined, meaning an error may be returned or packets - * may be accepted haphazardly. - * It has nothing to do with the source code version. - */ -struct bpf_version { - u_short bv_major; - u_short bv_minor; -}; -/* Current version number of filter architecture. */ -#define BPF_MAJOR_VERSION 1 -#define BPF_MINOR_VERSION 1 - -/* - * Data-link level type codes. - * - * Do *NOT* add new values to this list without asking - * "tcpdump-workers@tcpdump.org" for a value. Otherwise, you run the - * risk of using a value that's already being used for some other purpose, - * and of having tools that read libpcap-format captures not being able - * to handle captures with your new DLT_ value, with no hope that they - * will ever be changed to do so (as that would destroy their ability - * to read captures using that value for that other purpose). - */ - -/* - * These are the types that are the same on all platforms, and that - * have been defined by <net/bpf.h> for ages. - */ -#define DLT_NULL 0 /* BSD loopback encapsulation */ -#define DLT_EN10MB 1 /* Ethernet (10Mb) */ -#define DLT_EN3MB 2 /* Experimental Ethernet (3Mb) */ -#define DLT_AX25 3 /* Amateur Radio AX.25 */ -#define DLT_PRONET 4 /* Proteon ProNET Token Ring */ -#define DLT_CHAOS 5 /* Chaos */ -#define DLT_IEEE802 6 /* 802.5 Token Ring */ -#define DLT_ARCNET 7 /* ARCNET, with BSD-style header */ -#define DLT_SLIP 8 /* Serial Line IP */ -#define DLT_PPP 9 /* Point-to-point Protocol */ -#define DLT_FDDI 10 /* FDDI */ - -/* - * These are types that are different on some platforms, and that - * have been defined by <net/bpf.h> for ages. We use #ifdefs to - * detect the BSDs that define them differently from the traditional - * libpcap <net/bpf.h> - * - * XXX - DLT_ATM_RFC1483 is 13 in BSD/OS, and DLT_RAW is 14 in BSD/OS, - * but I don't know what the right #define is for BSD/OS. - */ -#define DLT_ATM_RFC1483 11 /* LLC-encapsulated ATM */ - -#ifdef __OpenBSD__ -#define DLT_RAW 14 /* raw IP */ -#else -#define DLT_RAW 12 /* raw IP */ -#endif - -/* - * Given that the only OS that currently generates BSD/OS SLIP or PPP - * is, well, BSD/OS, arguably everybody should have chosen its values - * for DLT_SLIP_BSDOS and DLT_PPP_BSDOS, which are 15 and 16, but they - * didn't. So it goes. - */ -#if defined(__NetBSD__) || defined(__FreeBSD__) -#ifndef DLT_SLIP_BSDOS -#define DLT_SLIP_BSDOS 13 /* BSD/OS Serial Line IP */ -#define DLT_PPP_BSDOS 14 /* BSD/OS Point-to-point Protocol */ -#endif -#else -#define DLT_SLIP_BSDOS 15 /* BSD/OS Serial Line IP */ -#define DLT_PPP_BSDOS 16 /* BSD/OS Point-to-point Protocol */ -#endif - -/* - * 17 is used for DLT_OLD_PFLOG in OpenBSD; - * OBSOLETE: DLT_PFLOG is 117 in OpenBSD now as well. See below. - * 18 is used for DLT_PFSYNC in OpenBSD; don't use it for anything else. - */ - -#define DLT_ATM_CLIP 19 /* Linux Classical-IP over ATM */ - -/* - * Apparently Redback uses this for its SmartEdge 400/800. I hope - * nobody else decided to use it, too. - */ -#define DLT_REDBACK_SMARTEDGE 32 - -/* - * These values are defined by NetBSD; other platforms should refrain from - * using them for other purposes, so that NetBSD savefiles with link - * types of 50 or 51 can be read as this type on all platforms. - */ -#define DLT_PPP_SERIAL 50 /* PPP over serial with HDLC encapsulation */ -#define DLT_PPP_ETHER 51 /* PPP over Ethernet */ - -/* - * The Axent Raptor firewall - now the Symantec Enterprise Firewall - uses - * a link-layer type of 99 for the tcpdump it supplies. The link-layer - * header has 6 bytes of unknown data, something that appears to be an - * Ethernet type, and 36 bytes that appear to be 0 in at least one capture - * I've seen. - */ -#define DLT_SYMANTEC_FIREWALL 99 - -/* - * Values between 100 and 103 are used in capture file headers as - * link-layer types corresponding to DLT_ types that differ - * between platforms; don't use those values for new DLT_ new types. - */ - -/* - * This value was defined by libpcap 0.5; platforms that have defined - * it with a different value should define it here with that value - - * a link type of 104 in a save file will be mapped to DLT_C_HDLC, - * whatever value that happens to be, so programs will correctly - * handle files with that link type regardless of the value of - * DLT_C_HDLC. - * - * The name DLT_C_HDLC was used by BSD/OS; we use that name for source - * compatibility with programs written for BSD/OS. - * - * libpcap 0.5 defined it as DLT_CHDLC; we define DLT_CHDLC as well, - * for source compatibility with programs written for libpcap 0.5. - */ -#define DLT_C_HDLC 104 /* Cisco HDLC */ -#define DLT_CHDLC DLT_C_HDLC - -#define DLT_IEEE802_11 105 /* IEEE 802.11 wireless */ - -/* - * 106 is reserved for Linux Classical IP over ATM; it's like DLT_RAW, - * except when it isn't. (I.e., sometimes it's just raw IP, and - * sometimes it isn't.) We currently handle it as DLT_LINUX_SLL, - * so that we don't have to worry about the link-layer header.) - */ - -/* - * Frame Relay; BSD/OS has a DLT_FR with a value of 11, but that collides - * with other values. - * DLT_FR and DLT_FRELAY packets start with the Q.922 Frame Relay header - * (DLCI, etc.). - */ -#define DLT_FRELAY 107 - -/* - * OpenBSD DLT_LOOP, for loopback devices; it's like DLT_NULL, except - * that the AF_ type in the link-layer header is in network byte order. - * - * DLT_LOOP is 12 in OpenBSD, but that's DLT_RAW in other OSes, so - * we don't use 12 for it in OSes other than OpenBSD. - */ -#ifdef __OpenBSD__ -#define DLT_LOOP 12 -#else -#define DLT_LOOP 108 -#endif - -/* - * Encapsulated packets for IPsec; DLT_ENC is 13 in OpenBSD, but that's - * DLT_SLIP_BSDOS in NetBSD, so we don't use 13 for it in OSes other - * than OpenBSD. - */ -#ifdef __OpenBSD__ -#define DLT_ENC 13 -#else -#define DLT_ENC 109 -#endif - -/* - * Values between 110 and 112 are reserved for use in capture file headers - * as link-layer types corresponding to DLT_ types that might differ - * between platforms; don't use those values for new DLT_ types - * other than the corresponding DLT_ types. - */ - -/* - * This is for Linux cooked sockets. - */ -#define DLT_LINUX_SLL 113 - -/* - * Apple LocalTalk hardware. - */ -#define DLT_LTALK 114 - -/* - * Acorn Econet. - */ -#define DLT_ECONET 115 - -/* - * Reserved for use with OpenBSD ipfilter. - */ -#define DLT_IPFILTER 116 - -/* - * OpenBSD DLT_PFLOG; DLT_PFLOG is 17 in OpenBSD, but that's DLT_LANE8023 - * in SuSE 6.3, so we can't use 17 for it in capture-file headers. - * - * XXX: is there a conflict with DLT_PFSYNC 18 as well? - */ -#ifdef __OpenBSD__ -#define DLT_OLD_PFLOG 17 -#define DLT_PFSYNC 18 -#endif -#define DLT_PFLOG 117 - -/* - * Registered for Cisco-internal use. - */ -#define DLT_CISCO_IOS 118 - -/* - * For 802.11 cards using the Prism II chips, with a link-layer - * header including Prism monitor mode information plus an 802.11 - * header. - */ -#define DLT_PRISM_HEADER 119 - -/* - * Reserved for Aironet 802.11 cards, with an Aironet link-layer header - * (see Doug Ambrisko's FreeBSD patches). - */ -#define DLT_AIRONET_HEADER 120 - -/* - * Reserved for Siemens HiPath HDLC. - */ -#define DLT_HHDLC 121 - -/* - * This is for RFC 2625 IP-over-Fibre Channel. - * - * This is not for use with raw Fibre Channel, where the link-layer - * header starts with a Fibre Channel frame header; it's for IP-over-FC, - * where the link-layer header starts with an RFC 2625 Network_Header - * field. - */ -#define DLT_IP_OVER_FC 122 - -/* - * This is for Full Frontal ATM on Solaris with SunATM, with a - * pseudo-header followed by an AALn PDU. - * - * There may be other forms of Full Frontal ATM on other OSes, - * with different pseudo-headers. - * - * If ATM software returns a pseudo-header with VPI/VCI information - * (and, ideally, packet type information, e.g. signalling, ILMI, - * LANE, LLC-multiplexed traffic, etc.), it should not use - * DLT_ATM_RFC1483, but should get a new DLT_ value, so tcpdump - * and the like don't have to infer the presence or absence of a - * pseudo-header and the form of the pseudo-header. - */ -#define DLT_SUNATM 123 /* Solaris+SunATM */ - -/* - * Reserved as per request from Kent Dahlgren <kent@praesum.com> - * for private use. - */ -#define DLT_RIO 124 /* RapidIO */ -#define DLT_PCI_EXP 125 /* PCI Express */ -#define DLT_AURORA 126 /* Xilinx Aurora link layer */ - -/* - * Header for 802.11 plus a number of bits of link-layer information - * including radio information, used by some recent BSD drivers as - * well as the madwifi Atheros driver for Linux. - */ -#define DLT_IEEE802_11_RADIO 127 /* 802.11 plus radiotap radio header */ - -/* - * Reserved for the TZSP encapsulation, as per request from - * Chris Waters <chris.waters@networkchemistry.com> - * TZSP is a generic encapsulation for any other link type, - * which includes a means to include meta-information - * with the packet, e.g. signal strength and channel - * for 802.11 packets. - */ -#define DLT_TZSP 128 /* Tazmen Sniffer Protocol */ - -/* - * BSD's ARCNET headers have the source host, destination host, - * and type at the beginning of the packet; that's what's handed - * up to userland via BPF. - * - * Linux's ARCNET headers, however, have a 2-byte offset field - * between the host IDs and the type; that's what's handed up - * to userland via PF_PACKET sockets. - * - * We therefore have to have separate DLT_ values for them. - */ -#define DLT_ARCNET_LINUX 129 /* ARCNET */ - -/* - * Juniper-private data link types, as per request from - * Hannes Gredler <hannes@juniper.net>. The DLT_s are used - * for passing on chassis-internal metainformation such as - * QOS profiles, etc.. - */ -#define DLT_JUNIPER_MLPPP 130 -#define DLT_JUNIPER_MLFR 131 -#define DLT_JUNIPER_ES 132 -#define DLT_JUNIPER_GGSN 133 -#define DLT_JUNIPER_MFR 134 -#define DLT_JUNIPER_ATM2 135 -#define DLT_JUNIPER_SERVICES 136 -#define DLT_JUNIPER_ATM1 137 - -/* - * Apple IP-over-IEEE 1394, as per a request from Dieter Siegmund - * <dieter@apple.com>. The header that's presented is an Ethernet-like - * header: - * - * #define FIREWIRE_EUI64_LEN 8 - * struct firewire_header { - * u_char firewire_dhost[FIREWIRE_EUI64_LEN]; - * u_char firewire_shost[FIREWIRE_EUI64_LEN]; - * u_short firewire_type; - * }; - * - * with "firewire_type" being an Ethernet type value, rather than, - * for example, raw GASP frames being handed up. - */ -#define DLT_APPLE_IP_OVER_IEEE1394 138 - -/* - * Various SS7 encapsulations, as per a request from Jeff Morriss - * <jeff.morriss[AT]ulticom.com> and subsequent discussions. - */ -#define DLT_MTP2_WITH_PHDR 139 /* pseudo-header with various info, followed by MTP2 */ -#define DLT_MTP2 140 /* MTP2, without pseudo-header */ -#define DLT_MTP3 141 /* MTP3, without pseudo-header or MTP2 */ -#define DLT_SCCP 142 /* SCCP, without pseudo-header or MTP2 or MTP3 */ - -/* - * DOCSIS MAC frames. - */ -#define DLT_DOCSIS 143 - -/* - * Linux-IrDA packets. Protocol defined at http://www.irda.org. - * Those packets include IrLAP headers and above (IrLMP...), but - * don't include Phy framing (SOF/EOF/CRC & byte stuffing), because Phy - * framing can be handled by the hardware and depend on the bitrate. - * This is exactly the format you would get capturing on a Linux-IrDA - * interface (irdaX), but not on a raw serial port. - * Note the capture is done in "Linux-cooked" mode, so each packet include - * a fake packet header (struct sll_header). This is because IrDA packet - * decoding is dependant on the direction of the packet (incomming or - * outgoing). - * When/if other platform implement IrDA capture, we may revisit the - * issue and define a real DLT_IRDA... - * Jean II - */ -#define DLT_LINUX_IRDA 144 - -/* - * Reserved for IBM SP switch and IBM Next Federation switch. - */ -#define DLT_IBM_SP 145 -#define DLT_IBM_SN 146 - -/* - * Reserved for private use. If you have some link-layer header type - * that you want to use within your organization, with the capture files - * using that link-layer header type not ever be sent outside your - * organization, you can use these values. - * - * No libpcap release will use these for any purpose, nor will any - * tcpdump release use them, either. - * - * Do *NOT* use these in capture files that you expect anybody not using - * your private versions of capture-file-reading tools to read; in - * particular, do *NOT* use them in products, otherwise you may find that - * people won't be able to use tcpdump, or snort, or Ethereal, or... to - * read capture files from your firewall/intrusion detection/traffic - * monitoring/etc. appliance, or whatever product uses that DLT_ value, - * and you may also find that the developers of those applications will - * not accept patches to let them read those files. - * - * Also, do not use them if somebody might send you a capture using them - * for *their* private type and tools using them for *your* private type - * would have to read them. - * - * Instead, ask "tcpdump-workers@tcpdump.org" for a new DLT_ value, - * as per the comment above, and use the type you're given. - */ -#define DLT_USER0 147 -#define DLT_USER1 148 -#define DLT_USER2 149 -#define DLT_USER3 150 -#define DLT_USER4 151 -#define DLT_USER5 152 -#define DLT_USER6 153 -#define DLT_USER7 154 -#define DLT_USER8 155 -#define DLT_USER9 156 -#define DLT_USER10 157 -#define DLT_USER11 158 -#define DLT_USER12 159 -#define DLT_USER13 160 -#define DLT_USER14 161 -#define DLT_USER15 162 - -/* - * For future use with 802.11 captures - defined by AbsoluteValue - * Systems to store a number of bits of link-layer information - * including radio information: - * - * http://www.shaftnet.org/~pizza/software/capturefrm.txt - * - * but it might be used by some non-AVS drivers now or in the - * future. - */ -#define DLT_IEEE802_11_RADIO_AVS 163 /* 802.11 plus AVS radio header */ - -/* - * Juniper-private data link type, as per request from - * Hannes Gredler <hannes@juniper.net>. The DLT_s are used - * for passing on chassis-internal metainformation such as - * QOS profiles, etc.. - */ -#define DLT_JUNIPER_MONITOR 164 - -/* - * Reserved for BACnet MS/TP. - */ -#define DLT_BACNET_MS_TP 165 - -/* - * Another PPP variant as per request from Karsten Keil <kkeil@suse.de>. - * - * This is used in some OSes to allow a kernel socket filter to distinguish - * between incoming and outgoing packets, on a socket intended to - * supply pppd with outgoing packets so it can do dial-on-demand and - * hangup-on-lack-of-demand; incoming packets are filtered out so they - * don't cause pppd to hold the connection up (you don't want random - * input packets such as port scans, packets from old lost connections, - * etc. to force the connection to stay up). - * - * The first byte of the PPP header (0xff03) is modified to accomodate - * the direction - 0x00 = IN, 0x01 = OUT. - */ -#define DLT_PPP_PPPD 166 - -/* - * Names for backwards compatibility with older versions of some PPP - * software; new software should use DLT_PPP_PPPD. - */ -#define DLT_PPP_WITH_DIRECTION DLT_PPP_PPPD -#define DLT_LINUX_PPP_WITHDIRECTION DLT_PPP_PPPD - -/* - * Juniper-private data link type, as per request from - * Hannes Gredler <hannes@juniper.net>. The DLT_s are used - * for passing on chassis-internal metainformation such as - * QOS profiles, cookies, etc.. - */ -#define DLT_JUNIPER_PPPOE 167 -#define DLT_JUNIPER_PPPOE_ATM 168 - -#define DLT_GPRS_LLC 169 /* GPRS LLC */ -#define DLT_GPF_T 170 /* GPF-T (ITU-T G.7041/Y.1303) */ -#define DLT_GPF_F 171 /* GPF-F (ITU-T G.7041/Y.1303) */ - -/* - * Requested by Oolan Zimmer <oz@gcom.com> for use in Gcom's T1/E1 line - * monitoring equipment. - */ -#define DLT_GCOM_T1E1 172 -#define DLT_GCOM_SERIAL 173 - -/* - * Juniper-private data link type, as per request from - * Hannes Gredler <hannes@juniper.net>. The DLT_ is used - * for internal communication to Physical Interface Cards (PIC) - */ -#define DLT_JUNIPER_PIC_PEER 174 - -/* - * Link types requested by Gregor Maier <gregor@endace.com> of Endace - * Measurement Systems. They add an ERF header (see - * http://www.endace.com/support/EndaceRecordFormat.pdf) in front of - * the link-layer header. - */ -#define DLT_ERF_ETH 175 /* Ethernet */ -#define DLT_ERF_POS 176 /* Packet-over-SONET */ - -/* - * Requested by Daniele Orlandi <daniele@orlandi.com> for raw LAPD - * for vISDN (http://www.orlandi.com/visdn/). Its link-layer header - * includes additional information before the LAPD header, so it's - * not necessarily a generic LAPD header. - */ -#define DLT_LINUX_LAPD 177 - -/* - * Juniper-private data link type, as per request from - * Hannes Gredler <hannes@juniper.net>. - * The DLT_ are used for prepending meta-information - * like interface index, interface name - * before standard Ethernet, PPP, Frelay & C-HDLC Frames - */ -#define DLT_JUNIPER_ETHER 178 -#define DLT_JUNIPER_PPP 179 -#define DLT_JUNIPER_FRELAY 180 -#define DLT_JUNIPER_CHDLC 181 - -/* - * Multi Link Frame Relay (FRF.16) - */ -#define DLT_MFR 182 - -/* - * Juniper-private data link type, as per request from - * Hannes Gredler <hannes@juniper.net>. - * The DLT_ is used for internal communication with a - * voice Adapter Card (PIC) - */ -#define DLT_JUNIPER_VP 183 - -/* - * Arinc 429 frames. - * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. - * Every frame contains a 32bit A429 label. - * More documentation on Arinc 429 can be found at - * http://www.condoreng.com/support/downloads/tutorials/ARINCTutorial.pdf - */ -#define DLT_A429 184 - -/* - * Arinc 653 Interpartition Communication messages. - * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. - * Please refer to the A653-1 standard for more information. - */ -#define DLT_A653_ICM 185 - -/* - * USB packets, beginning with a USB setup header; requested by - * Paolo Abeni <paolo.abeni@email.it>. - */ -#define DLT_USB 186 - -/* - * Bluetooth HCI UART transport layer (part H:4); requested by - * Paolo Abeni. - */ -#define DLT_BLUETOOTH_HCI_H4 187 - -/* - * IEEE 802.16 MAC Common Part Sublayer; requested by Maria Cruz - * <cruz_petagay@bah.com>. - */ -#define DLT_IEEE802_16_MAC_CPS 188 - -/* - * USB packets, beginning with a Linux USB header; requested by - * Paolo Abeni <paolo.abeni@email.it>. - */ -#define DLT_USB_LINUX 189 - -/* - * Controller Area Network (CAN) v. 2.0B packets. - * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. - * Used to dump CAN packets coming from a CAN Vector board. - * More documentation on the CAN v2.0B frames can be found at - * http://www.can-cia.org/downloads/?269 - */ -#define DLT_CAN20B 190 - -/* - * IEEE 802.15.4, with address fields padded, as is done by Linux - * drivers; requested by Juergen Schimmer. - */ -#define DLT_IEEE802_15_4_LINUX 191 - -/* - * Per Packet Information encapsulated packets. - * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. - */ -#define DLT_PPI 192 - -/* - * Header for 802.16 MAC Common Part Sublayer plus a radiotap radio header; - * requested by Charles Clancy. - */ -#define DLT_IEEE802_16_MAC_CPS_RADIO 193 - -/* - * Juniper-private data link type, as per request from - * Hannes Gredler <hannes@juniper.net>. - * The DLT_ is used for internal communication with a - * integrated service module (ISM). - */ -#define DLT_JUNIPER_ISM 194 - -/* - * IEEE 802.15.4, exactly as it appears in the spec (no padding, no - * nothing); requested by Mikko Saarnivala <mikko.saarnivala@sensinode.com>. - */ -#define DLT_IEEE802_15_4 195 - -/* - * Various link-layer types, with a pseudo-header, for SITA - * (http://www.sita.aero/); requested by Fulko Hew (fulko.hew@gmail.com). - */ -#define DLT_SITA 196 - -/* - * Various link-layer types, with a pseudo-header, for Endace DAG cards; - * encapsulates Endace ERF records. Requested by Stephen Donnelly - * <stephen@endace.com>. - */ -#define DLT_ERF 197 - -/* - * Special header prepended to Ethernet packets when capturing from a - * u10 Networks board. Requested by Phil Mulholland - * <phil@u10networks.com>. - */ -#define DLT_RAIF1 198 - -/* - * IPMB packet for IPMI, beginning with the I2C slave address, followed - * by the netFn and LUN, etc.. Requested by Chanthy Toeung - * <chanthy.toeung@ca.kontron.com>. - */ -#define DLT_IPMB 199 - -/* - * Juniper-private data link type, as per request from - * Hannes Gredler <hannes@juniper.net>. - * The DLT_ is used for capturing data on a secure tunnel interface. - */ -#define DLT_JUNIPER_ST 200 - -/* - * Bluetooth HCI UART transport layer (part H:4), with pseudo-header - * that includes direction information; requested by Paolo Abeni. - */ -#define DLT_BLUETOOTH_HCI_H4_WITH_PHDR 201 - - -/* - * The instruction encodings. - */ -/* instruction classes */ -#define BPF_CLASS(code) ((code) & 0x07) -#define BPF_LD 0x00 -#define BPF_LDX 0x01 -#define BPF_ST 0x02 -#define BPF_STX 0x03 -#define BPF_ALU 0x04 -#define BPF_JMP 0x05 -#define BPF_RET 0x06 -#define BPF_MISC 0x07 - -/* ld/ldx fields */ -#define BPF_SIZE(code) ((code) & 0x18) -#define BPF_W 0x00 -#define BPF_H 0x08 -#define BPF_B 0x10 -#define BPF_MODE(code) ((code) & 0xe0) -#define BPF_IMM 0x00 -#define BPF_ABS 0x20 -#define BPF_IND 0x40 -#define BPF_MEM 0x60 -#define BPF_LEN 0x80 -#define BPF_MSH 0xa0 - -/* alu/jmp fields */ -#define BPF_OP(code) ((code) & 0xf0) -#define BPF_ADD 0x00 -#define BPF_SUB 0x10 -#define BPF_MUL 0x20 -#define BPF_DIV 0x30 -#define BPF_OR 0x40 -#define BPF_AND 0x50 -#define BPF_LSH 0x60 -#define BPF_RSH 0x70 -#define BPF_NEG 0x80 -#define BPF_JA 0x00 -#define BPF_JEQ 0x10 -#define BPF_JGT 0x20 -#define BPF_JGE 0x30 -#define BPF_JSET 0x40 -#define BPF_SRC(code) ((code) & 0x08) -#define BPF_K 0x00 -#define BPF_X 0x08 - -/* ret - BPF_K and BPF_X also apply */ -#define BPF_RVAL(code) ((code) & 0x18) -#define BPF_A 0x10 - -/* misc */ -#define BPF_MISCOP(code) ((code) & 0xf8) -#define BPF_TAX 0x00 -#define BPF_TXA 0x80 - -/* - * The instruction data structure. - */ -struct bpf_insn { - u_short code; - u_char jt; - u_char jf; - bpf_int32 k; -}; - -/* - * Macros for insn array initializers. - */ -#define BPF_STMT(code, k) { (u_short)(code), 0, 0, k } -#define BPF_JUMP(code, k, jt, jf) { (u_short)(code), jt, jf, k } - -#if __STDC__ || defined(__cplusplus) -extern int bpf_validate(struct bpf_insn *, int); -extern u_int bpf_filter(struct bpf_insn *, u_char *, u_int, u_int); -#else -extern int bpf_validate(); -extern u_int bpf_filter(); -#endif - -/* - * Number of scratch memory words (for BPF_LD|BPF_MEM and BPF_ST). - */ -#define BPF_MEMWORDS 16 - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/contrib/libpcap/pcap-dag.c b/contrib/libpcap/pcap-dag.c deleted file mode 100644 index 3ef2508..0000000 --- a/contrib/libpcap/pcap-dag.c +++ /dev/null @@ -1,1007 +0,0 @@ -/* - * pcap-dag.c: Packet capture interface for Endace DAG card. - * - * The functionality of this code attempts to mimic that of pcap-linux as much - * as possible. This code is compiled in several different ways depending on - * whether DAG_ONLY and HAVE_DAG_API are defined. If HAVE_DAG_API is not - * defined it should not get compiled in, otherwise if DAG_ONLY is defined then - * the 'dag_' function calls are renamed to 'pcap_' equivalents. If DAG_ONLY - * is not defined then nothing is altered - the dag_ functions will be - * called as required from their pcap-linux/bpf equivalents. - * - * Authors: Richard Littin, Sean Irvine ({richard,sean}@reeltwo.com) - * Modifications: Jesper Peterson <support@endace.com> - * Koryn Grant <support@endace.com> - * Stephen Donnelly <support@endace.com> - */ - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/pcap-dag.c,v 1.21.2.7 2007/06/22 06:43:58 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <sys/param.h> /* optionally get BSD define */ - -#include <stdlib.h> -#include <string.h> -#include <errno.h> - -#include "pcap-int.h" - -#include <ctype.h> -#include <netinet/in.h> -#include <sys/mman.h> -#include <sys/socket.h> -#include <sys/types.h> -#include <unistd.h> - -struct mbuf; /* Squelch compiler warnings on some platforms for */ -struct rtentry; /* declarations in <net/if.h> */ -#include <net/if.h> - -#include "dagnew.h" -#include "dagapi.h" - -#define ATM_CELL_SIZE 52 -#define ATM_HDR_SIZE 4 - -/* - * A header containing additional MTP information. - */ -#define MTP2_SENT_OFFSET 0 /* 1 byte */ -#define MTP2_ANNEX_A_USED_OFFSET 1 /* 1 byte */ -#define MTP2_LINK_NUMBER_OFFSET 2 /* 2 bytes */ -#define MTP2_HDR_LEN 4 /* length of the header */ - -#define MTP2_ANNEX_A_NOT_USED 0 -#define MTP2_ANNEX_A_USED 1 -#define MTP2_ANNEX_A_USED_UNKNOWN 2 - -/* SunATM pseudo header */ -struct sunatm_hdr { - unsigned char flags; /* destination and traffic type */ - unsigned char vpi; /* VPI */ - unsigned short vci; /* VCI */ -}; - -typedef struct pcap_dag_node { - struct pcap_dag_node *next; - pcap_t *p; - pid_t pid; -} pcap_dag_node_t; - -static pcap_dag_node_t *pcap_dags = NULL; -static int atexit_handler_installed = 0; -static const unsigned short endian_test_word = 0x0100; - -#define IS_BIGENDIAN() (*((unsigned char *)&endian_test_word)) - - -#ifdef DAG_ONLY -/* This code is required when compiling for a DAG device only. */ -#include "pcap-dag.h" - -/* Replace dag function names with pcap equivalent. */ -#define dag_open_live pcap_open_live -#define dag_platform_finddevs pcap_platform_finddevs -#endif /* DAG_ONLY */ - -#define MAX_DAG_PACKET 65536 - -static unsigned char TempPkt[MAX_DAG_PACKET]; - -static int dag_setfilter(pcap_t *p, struct bpf_program *fp); -static int dag_stats(pcap_t *p, struct pcap_stat *ps); -static int dag_set_datalink(pcap_t *p, int dlt); -static int dag_get_datalink(pcap_t *p); -static int dag_setnonblock(pcap_t *p, int nonblock, char *errbuf); - -static void -delete_pcap_dag(pcap_t *p) -{ - pcap_dag_node_t *curr = NULL, *prev = NULL; - - for (prev = NULL, curr = pcap_dags; curr != NULL && curr->p != p; prev = curr, curr = curr->next) { - /* empty */ - } - - if (curr != NULL && curr->p == p) { - if (prev != NULL) { - prev->next = curr->next; - } else { - pcap_dags = curr->next; - } - } -} - -/* - * Performs a graceful shutdown of the DAG card, frees dynamic memory held - * in the pcap_t structure, and closes the file descriptor for the DAG card. - */ - -static void -dag_platform_close(pcap_t *p) -{ - - if (p != NULL) { -#ifdef HAVE_DAG_STREAMS_API - if(dag_stop_stream(p->fd, p->md.dag_stream) < 0) - fprintf(stderr,"dag_stop_stream: %s\n", strerror(errno)); - - if(dag_detach_stream(p->fd, p->md.dag_stream) < 0) - fprintf(stderr,"dag_detach_stream: %s\n", strerror(errno)); -#else - if(dag_stop(p->fd) < 0) - fprintf(stderr,"dag_stop: %s\n", strerror(errno)); -#endif /* HAVE_DAG_STREAMS_API */ - if(dag_close(p->fd) < 0) - fprintf(stderr,"dag_close: %s\n", strerror(errno)); - } - delete_pcap_dag(p); - /* Note: don't need to call close(p->fd) here as dag_close(p->fd) does this. */ -} - -static void -atexit_handler(void) -{ - while (pcap_dags != NULL) { - if (pcap_dags->pid == getpid()) { - dag_platform_close(pcap_dags->p); - } else { - delete_pcap_dag(pcap_dags->p); - } - } -} - -static int -new_pcap_dag(pcap_t *p) -{ - pcap_dag_node_t *node = NULL; - - if ((node = malloc(sizeof(pcap_dag_node_t))) == NULL) { - return -1; - } - - if (!atexit_handler_installed) { - atexit(atexit_handler); - atexit_handler_installed = 1; - } - - node->next = pcap_dags; - node->p = p; - node->pid = getpid(); - - pcap_dags = node; - - return 0; -} - -/* - * Read at most max_packets from the capture stream and call the callback - * for each of them. Returns the number of packets handled, -1 if an - * error occured, or -2 if we were told to break out of the loop. - */ -static int -dag_read(pcap_t *p, int cnt, pcap_handler callback, u_char *user) -{ - unsigned int processed = 0; - int flags = p->md.dag_offset_flags; - unsigned int nonblocking = flags & DAGF_NONBLOCK; - - /* Get the next bufferful of packets (if necessary). */ - while (p->md.dag_mem_top - p->md.dag_mem_bottom < dag_record_size) { - - /* - * Has "pcap_breakloop()" been called? - */ - if (p->break_loop) { - /* - * Yes - clear the flag that indicates that - * it has, and return -2 to indicate that - * we were told to break out of the loop. - */ - p->break_loop = 0; - return -2; - } - -#ifdef HAVE_DAG_STREAMS_API - /* dag_advance_stream() will block (unless nonblock is called) - * until 64kB of data has accumulated. - * If to_ms is set, it will timeout before 64kB has accumulated. - * We wait for 64kB because processing a few packets at a time - * can cause problems at high packet rates (>200kpps) due - * to inefficiencies. - * This does mean if to_ms is not specified the capture may 'hang' - * for long periods if the data rate is extremely slow (<64kB/sec) - * If non-block is specified it will return immediately. The user - * is then responsible for efficiency. - */ - p->md.dag_mem_top = dag_advance_stream(p->fd, p->md.dag_stream, &(p->md.dag_mem_bottom)); -#else - /* dag_offset does not support timeouts */ - p->md.dag_mem_top = dag_offset(p->fd, &(p->md.dag_mem_bottom), flags); -#endif /* HAVE_DAG_STREAMS_API */ - - if (nonblocking && (p->md.dag_mem_top - p->md.dag_mem_bottom < dag_record_size)) - { - /* Pcap is configured to process only available packets, and there aren't any, return immediately. */ - return 0; - } - - if(!nonblocking && - p->md.dag_timeout && - (p->md.dag_mem_top - p->md.dag_mem_bottom < dag_record_size)) - { - /* Blocking mode, but timeout set and no data has arrived, return anyway.*/ - return 0; - } - - } - - /* Process the packets. */ - while (p->md.dag_mem_top - p->md.dag_mem_bottom >= dag_record_size) { - - unsigned short packet_len = 0; - int caplen = 0; - struct pcap_pkthdr pcap_header; - -#ifdef HAVE_DAG_STREAMS_API - dag_record_t *header = (dag_record_t *)(p->md.dag_mem_bottom); -#else - dag_record_t *header = (dag_record_t *)(p->md.dag_mem_base + p->md.dag_mem_bottom); -#endif /* HAVE_DAG_STREAMS_API */ - - u_char *dp = ((u_char *)header) + dag_record_size; - unsigned short rlen; - - /* - * Has "pcap_breakloop()" been called? - */ - if (p->break_loop) { - /* - * Yes - clear the flag that indicates that - * it has, and return -2 to indicate that - * we were told to break out of the loop. - */ - p->break_loop = 0; - return -2; - } - - rlen = ntohs(header->rlen); - if (rlen < dag_record_size) - { - strncpy(p->errbuf, "dag_read: record too small", PCAP_ERRBUF_SIZE); - return -1; - } - p->md.dag_mem_bottom += rlen; - - switch(header->type) { - case TYPE_ATM: -#ifdef TYPE_AAL5 - case TYPE_AAL5: - if (header->type == TYPE_AAL5) { - packet_len = ntohs(header->wlen); - caplen = rlen - dag_record_size; - } -#endif -#ifdef TYPE_MC_ATM - case TYPE_MC_ATM: - if (header->type == TYPE_MC_ATM) { - caplen = packet_len = ATM_CELL_SIZE; - dp+=4; - } -#endif -#ifdef TYPE_MC_AAL5 - case TYPE_MC_AAL5: - if (header->type == TYPE_MC_AAL5) { - packet_len = ntohs(header->wlen); - caplen = rlen - dag_record_size - 4; - dp+=4; - } -#endif - if (header->type == TYPE_ATM) { - caplen = packet_len = ATM_CELL_SIZE; - } - if (p->linktype == DLT_SUNATM) { - struct sunatm_hdr *sunatm = (struct sunatm_hdr *)dp; - unsigned long rawatm; - - rawatm = ntohl(*((unsigned long *)dp)); - sunatm->vci = htons((rawatm >> 4) & 0xffff); - sunatm->vpi = (rawatm >> 20) & 0x00ff; - sunatm->flags = ((header->flags.iface & 1) ? 0x80 : 0x00) | - ((sunatm->vpi == 0 && sunatm->vci == htons(5)) ? 6 : - ((sunatm->vpi == 0 && sunatm->vci == htons(16)) ? 5 : - ((dp[ATM_HDR_SIZE] == 0xaa && - dp[ATM_HDR_SIZE+1] == 0xaa && - dp[ATM_HDR_SIZE+2] == 0x03) ? 2 : 1))); - - } else { - packet_len -= ATM_HDR_SIZE; - caplen -= ATM_HDR_SIZE; - dp += ATM_HDR_SIZE; - } - break; - -#ifdef TYPE_DSM_COLOR_ETH - case TYPE_DSM_COLOR_ETH: -#endif -#ifdef TYPE_COLOR_ETH - case TYPE_COLOR_ETH: -#endif - case TYPE_ETH: - packet_len = ntohs(header->wlen); - packet_len -= (p->md.dag_fcs_bits >> 3); - caplen = rlen - dag_record_size - 2; - if (caplen > packet_len) { - caplen = packet_len; - } - dp += 2; - break; -#ifdef TYPE_DSM_COLOR_HDLC_POS - case TYPE_DSM_COLOR_HDLC_POS: -#endif -#ifdef TYPE_COLOR_HDLC_POS - case TYPE_COLOR_HDLC_POS: -#endif - case TYPE_HDLC_POS: - packet_len = ntohs(header->wlen); - packet_len -= (p->md.dag_fcs_bits >> 3); - caplen = rlen - dag_record_size; - if (caplen > packet_len) { - caplen = packet_len; - } - break; -#ifdef TYPE_COLOR_MC_HDLC_POS - case TYPE_COLOR_MC_HDLC_POS: -#endif -#ifdef TYPE_MC_HDLC - case TYPE_MC_HDLC: - packet_len = ntohs(header->wlen); - packet_len -= (p->md.dag_fcs_bits >> 3); - caplen = rlen - dag_record_size - 4; - if (caplen > packet_len) { - caplen = packet_len; - } - /* jump the MC_HDLC_HEADER */ - dp += 4; - if (p->linktype == DLT_MTP2_WITH_PHDR) { - /* Add the MTP2 Pseudo Header */ - caplen += MTP2_HDR_LEN; - packet_len += MTP2_HDR_LEN; - - TempPkt[MTP2_SENT_OFFSET] = 0; - TempPkt[MTP2_ANNEX_A_USED_OFFSET] = MTP2_ANNEX_A_USED_UNKNOWN; - *(TempPkt+MTP2_LINK_NUMBER_OFFSET) = ((header->rec.mc_hdlc.mc_header>>16)&0x01); - *(TempPkt+MTP2_LINK_NUMBER_OFFSET+1) = ((header->rec.mc_hdlc.mc_header>>24)&0xff); - memcpy(TempPkt+MTP2_HDR_LEN, dp, caplen); - dp = TempPkt; - } - break; -#endif - default: - /* Unhandled ERF type. - * Ignore rather than generating error - */ - continue; - } - - if (caplen > p->snapshot) - caplen = p->snapshot; - - /* Count lost packets. */ - switch(header->type) { -#ifdef TYPE_COLOR_HDLC_POS - /* in this type the color value overwrites the lctr */ - case TYPE_COLOR_HDLC_POS: - break; -#endif -#ifdef TYPE_COLOR_ETH - /* in this type the color value overwrites the lctr */ - case TYPE_COLOR_ETH: - break; -#endif -#ifdef TYPE_DSM_COLOR_HDLC_POS - /* in this type the color value overwrites the lctr */ - case TYPE_DSM_COLOR_HDLC_POS: - break; -#endif -#ifdef TYPE_DSM_COLOR_ETH - /* in this type the color value overwrites the lctr */ - case TYPE_DSM_COLOR_ETH: - break; -#endif -#ifdef TYPE_COLOR_MC_HDLC_POS - case TYPE_COLOR_MC_HDLC_POS: - break; -#endif - - default: - if (header->lctr) { - if (p->md.stat.ps_drop > (UINT_MAX - ntohs(header->lctr))) { - p->md.stat.ps_drop = UINT_MAX; - } else { - p->md.stat.ps_drop += ntohs(header->lctr); - } - } - } - - /* Run the packet filter if there is one. */ - if ((p->fcode.bf_insns == NULL) || bpf_filter(p->fcode.bf_insns, dp, packet_len, caplen)) { - - /* convert between timestamp formats */ - register unsigned long long ts; - - if (IS_BIGENDIAN()) { - ts = SWAPLL(header->ts); - } else { - ts = header->ts; - } - - pcap_header.ts.tv_sec = ts >> 32; - ts = (ts & 0xffffffffULL) * 1000000; - ts += 0x80000000; /* rounding */ - pcap_header.ts.tv_usec = ts >> 32; - if (pcap_header.ts.tv_usec >= 1000000) { - pcap_header.ts.tv_usec -= 1000000; - pcap_header.ts.tv_sec++; - } - - /* Fill in our own header data */ - pcap_header.caplen = caplen; - pcap_header.len = packet_len; - - /* Count the packet. */ - p->md.stat.ps_recv++; - - /* Call the user supplied callback function */ - callback(user, &pcap_header, dp); - - /* Only count packets that pass the filter, for consistency with standard Linux behaviour. */ - processed++; - if (processed == cnt) - { - /* Reached the user-specified limit. */ - return cnt; - } - } - } - - return processed; -} - -static int -dag_inject(pcap_t *p, const void *buf _U_, size_t size _U_) -{ - strlcpy(p->errbuf, "Sending packets isn't supported on DAG cards", - PCAP_ERRBUF_SIZE); - return (-1); -} - -/* - * Get a handle for a live capture from the given DAG device. Passing a NULL - * device will result in a failure. The promisc flag is ignored because DAG - * cards are always promiscuous. The to_ms parameter is also ignored as it is - * not supported in hardware. - * - * snaplen is now also ignored, until we get per-stream slen support. Set - * slen with approprite DAG tool BEFORE pcap_open_live(). - * - * See also pcap(3). - */ -pcap_t * -dag_open_live(const char *device, int snaplen, int promisc, int to_ms, char *ebuf) -{ - char conf[30]; /* dag configure string */ - pcap_t *handle; - char *s; - int n; - daginf_t* daginf; - char * newDev = NULL; -#ifdef HAVE_DAG_STREAMS_API - uint32_t mindata; - struct timeval maxwait; - struct timeval poll; -#endif - - if (device == NULL) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "device is NULL: %s", pcap_strerror(errno)); - return NULL; - } - /* Allocate a handle for this session. */ - - handle = malloc(sizeof(*handle)); - if (handle == NULL) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "malloc %s: %s", device, pcap_strerror(errno)); - return NULL; - } - - /* Initialize some components of the pcap structure. */ - - memset(handle, 0, sizeof(*handle)); - -#ifdef HAVE_DAG_STREAMS_API - newDev = (char *)malloc(strlen(device) + 16); - if (newDev == NULL) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "Can't allocate string for device name: %s\n", pcap_strerror(errno)); - goto fail; - } - - /* Parse input name to get dag device and stream number if provided */ - if (dag_parse_name(device, newDev, strlen(device) + 16, &handle->md.dag_stream) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "dag_parse_name: %s\n", pcap_strerror(errno)); - goto fail; - } - device = newDev; - - if (handle->md.dag_stream%2) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "dag_parse_name: tx (even numbered) streams not supported for capture\n"); - goto fail; - } -#else - if (strncmp(device, "/dev/", 5) != 0) { - newDev = (char *)malloc(strlen(device) + 5); - if (newDev == NULL) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "Can't allocate string for device name: %s\n", pcap_strerror(errno)); - goto fail; - } - strcpy(newDev, "/dev/"); - strcat(newDev, device); - device = newDev; - } -#endif /* HAVE_DAG_STREAMS_API */ - - /* setup device parameters */ - if((handle->fd = dag_open((char *)device)) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "dag_open %s: %s", device, pcap_strerror(errno)); - goto fail; - } - -#ifdef HAVE_DAG_STREAMS_API - /* Open requested stream. Can fail if already locked or on error */ - if (dag_attach_stream(handle->fd, handle->md.dag_stream, 0, 0) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "dag_attach_stream: %s\n", pcap_strerror(errno)); - goto failclose; - } - - /* Set up default poll parameters for stream - * Can be overridden by pcap_set_nonblock() - */ - if (dag_get_stream_poll(handle->fd, handle->md.dag_stream, - &mindata, &maxwait, &poll) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "dag_get_stream_poll: %s\n", pcap_strerror(errno)); - goto faildetach; - } - - /* Amount of data to collect in Bytes before calling callbacks. - * Important for efficiency, but can introduce latency - * at low packet rates if to_ms not set! - */ - mindata = 65536; - - /* Obey to_ms if supplied. This is a good idea! - * Recommend 10-100ms. Calls will time out even if no data arrived. - */ - maxwait.tv_sec = to_ms/1000; - maxwait.tv_usec = (to_ms%1000) * 1000; - - if (dag_set_stream_poll(handle->fd, handle->md.dag_stream, - mindata, &maxwait, &poll) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "dag_set_stream_poll: %s\n", pcap_strerror(errno)); - goto faildetach; - } - -#else - if((handle->md.dag_mem_base = dag_mmap(handle->fd)) == MAP_FAILED) { - snprintf(ebuf, PCAP_ERRBUF_SIZE,"dag_mmap %s: %s\n", device, pcap_strerror(errno)); - goto failclose; - } - -#endif /* HAVE_DAG_STREAMS_API */ - - /* XXX Not calling dag_configure() to set slen; this is unsafe in - * multi-stream environments as the gpp config is global. - * Once the firmware provides 'per-stream slen' this can be supported - * again via the Config API without side-effects */ -#if 0 - /* set the card snap length to the specified snaplen parameter */ - /* This is a really bad idea, as different cards have different - * valid slen ranges. Should fix in Config API. */ - if (snaplen == 0 || snaplen > MAX_DAG_SNAPLEN) { - snaplen = MAX_DAG_SNAPLEN; - } else if (snaplen < MIN_DAG_SNAPLEN) { - snaplen = MIN_DAG_SNAPLEN; - } - /* snap len has to be a multiple of 4 */ - snprintf(conf, 30, "varlen slen=%d", (snaplen + 3) & ~3); - - if(dag_configure(handle->fd, conf) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE,"dag_configure %s: %s\n", device, pcap_strerror(errno)); - goto faildetach; - } -#endif - -#ifdef HAVE_DAG_STREAMS_API - if(dag_start_stream(handle->fd, handle->md.dag_stream) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "dag_start_stream %s: %s\n", device, pcap_strerror(errno)); - goto faildetach; - } -#else - if(dag_start(handle->fd) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "dag_start %s: %s\n", device, pcap_strerror(errno)); - goto failclose; - } -#endif /* HAVE_DAG_STREAMS_API */ - - /* - * Important! You have to ensure bottom is properly - * initialized to zero on startup, it won't give you - * a compiler warning if you make this mistake! - */ - handle->md.dag_mem_bottom = 0; - handle->md.dag_mem_top = 0; - handle->md.dag_fcs_bits = 32; - - /* Query the card first for special cases. */ - daginf = dag_info(handle->fd); - if ((0x4200 == daginf->device_code) || (0x4230 == daginf->device_code)) - { - /* DAG 4.2S and 4.23S already strip the FCS. Stripping the final word again truncates the packet. */ - handle->md.dag_fcs_bits = 0; - } - - /* Then allow an environment variable to override. */ - if ((s = getenv("ERF_FCS_BITS")) != NULL) { - if ((n = atoi(s)) == 0 || n == 16|| n == 32) { - handle->md.dag_fcs_bits = n; - } else { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "pcap_open_live %s: bad ERF_FCS_BITS value (%d) in environment\n", device, n); - goto failstop; - } - } - - handle->snapshot = snaplen; - handle->md.dag_timeout = to_ms; - - handle->linktype = -1; - if (dag_get_datalink(handle) < 0) { - strcpy(ebuf, handle->errbuf); - goto failstop; - } - - handle->bufsize = 0; - - if (new_pcap_dag(handle) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "new_pcap_dag %s: %s\n", device, pcap_strerror(errno)); - goto failstop; - } - - /* - * "select()" and "poll()" don't work on DAG device descriptors. - */ - handle->selectable_fd = -1; - - if (newDev != NULL) { - free((char *)newDev); - } - - handle->read_op = dag_read; - handle->inject_op = dag_inject; - handle->setfilter_op = dag_setfilter; - handle->setdirection_op = NULL; /* Not implemented.*/ - handle->set_datalink_op = dag_set_datalink; - handle->getnonblock_op = pcap_getnonblock_fd; - handle->setnonblock_op = dag_setnonblock; - handle->stats_op = dag_stats; - handle->close_op = dag_platform_close; - handle->md.stat.ps_drop = 0; - handle->md.stat.ps_recv = 0; - return handle; - -#ifdef HAVE_DAG_STREAMS_API -failstop: - if (handle != NULL) { - if (dag_stop_stream(handle->fd, handle->md.dag_stream) < 0) - fprintf(stderr,"dag_stop_stream: %s\n", strerror(errno)); - } - -faildetach: - if (handle != NULL) { - if (dag_detach_stream(handle->fd, handle->md.dag_stream) < 0) - fprintf(stderr,"dag_detach_stream: %s\n", strerror(errno)); - } -#else -failstop: - if (handle != NULL) { - if (dag_stop(p->fd) < 0) - fprintf(stderr,"dag_stop: %s\n", strerror(errno)); - } -#endif /* HAVE_DAG_STREAMS_API */ - -failclose: - if (handle != NULL) { - if (dag_close(handle->fd) < 0) - fprintf(stderr,"dag_close: %s\n", strerror(errno)); - } - if (handle != NULL) - delete_pcap_dag(handle); - -fail: - if (newDev != NULL) { - free((char *)newDev); - } - if (handle != NULL) { - /* - * Get rid of any link-layer type list we allocated. - */ - if (handle->dlt_list != NULL) { - free(handle->dlt_list); - } - free(handle); - } - - return NULL; -} - -static int -dag_stats(pcap_t *p, struct pcap_stat *ps) { - /* This needs to be filled out correctly. Hopefully a dagapi call will - provide all necessary information. - */ - /*p->md.stat.ps_recv = 0;*/ - /*p->md.stat.ps_drop = 0;*/ - - *ps = p->md.stat; - - return 0; -} - -/* - * Simply submit all possible dag names as candidates. - * pcap_add_if() internally tests each candidate with pcap_open_live(), - * so any non-existent devices are dropped. - * For 2.5 try all rx stream names as well. - */ -int -dag_platform_finddevs(pcap_if_t **devlistp, char *errbuf) -{ - char name[12]; /* XXX - pick a size */ - int ret = 0; - int c; - - /* Try all the DAGs 0-9 */ - for (c = 0; c < 9; c++) { - snprintf(name, 12, "dag%d", c); - if (pcap_add_if(devlistp, name, 0, NULL, errbuf) == -1) { - /* - * Failure. - */ - ret = -1; - } -#ifdef HAVE_DAG_STREAMS_API - { - int stream; - for(stream=0;stream<16;stream+=2) { - snprintf(name, 10, "dag%d:%d", c, stream); - if (pcap_add_if(devlistp, name, 0, NULL, errbuf) == -1) { - /* - * Failure. - */ - ret = -1; - } - } - } -#endif /* HAVE_DAG_STREAMS_API */ - } - return (ret); -} - -/* - * Installs the given bpf filter program in the given pcap structure. There is - * no attempt to store the filter in kernel memory as that is not supported - * with DAG cards. - */ -static int -dag_setfilter(pcap_t *p, struct bpf_program *fp) -{ - if (!p) - return -1; - if (!fp) { - strncpy(p->errbuf, "setfilter: No filter specified", - sizeof(p->errbuf)); - return -1; - } - - /* Make our private copy of the filter */ - - if (install_bpf_program(p, fp) < 0) - return -1; - - p->md.use_bpf = 0; - - return (0); -} - -static int -dag_set_datalink(pcap_t *p, int dlt) -{ - p->linktype = dlt; - - return (0); -} - -static int -dag_setnonblock(pcap_t *p, int nonblock, char *errbuf) -{ - /* - * Set non-blocking mode on the FD. - * XXX - is that necessary? If not, don't bother calling it, - * and have a "dag_getnonblock()" function that looks at - * "p->md.dag_offset_flags". - */ - if (pcap_setnonblock_fd(p, nonblock, errbuf) < 0) - return (-1); -#ifdef HAVE_DAG_STREAMS_API - { - uint32_t mindata; - struct timeval maxwait; - struct timeval poll; - - if (dag_get_stream_poll(p->fd, p->md.dag_stream, - &mindata, &maxwait, &poll) < 0) { - snprintf(errbuf, PCAP_ERRBUF_SIZE, "dag_get_stream_poll: %s\n", pcap_strerror(errno)); - return -1; - } - - /* Amount of data to collect in Bytes before calling callbacks. - * Important for efficiency, but can introduce latency - * at low packet rates if to_ms not set! - */ - if(nonblock) - mindata = 0; - else - mindata = 65536; - - if (dag_set_stream_poll(p->fd, p->md.dag_stream, - mindata, &maxwait, &poll) < 0) { - snprintf(errbuf, PCAP_ERRBUF_SIZE, "dag_set_stream_poll: %s\n", pcap_strerror(errno)); - return -1; - } - } -#endif /* HAVE_DAG_STREAMS_API */ - if (nonblock) { - p->md.dag_offset_flags |= DAGF_NONBLOCK; - } else { - p->md.dag_offset_flags &= ~DAGF_NONBLOCK; - } - return (0); -} - -static int -dag_get_datalink(pcap_t *p) -{ - int index=0; - uint8_t types[255]; - - memset(types, 0, 255); - - if (p->dlt_list == NULL && (p->dlt_list = malloc(255*sizeof(*(p->dlt_list)))) == NULL) { - (void)snprintf(p->errbuf, sizeof(p->errbuf), "malloc: %s", pcap_strerror(errno)); - return (-1); - } - - p->linktype = 0; - -#ifdef HAVE_DAG_GET_ERF_TYPES - /* Get list of possible ERF types for this card */ - if (dag_get_erf_types(p->fd, types, 255) < 0) { - snprintf(p->errbuf, sizeof(p->errbuf), "dag_get_erf_types: %s", pcap_strerror(errno)); - return (-1); - } - - while (types[index]) { -#else - /* Check the type through a dagapi call. */ - types[index] = dag_linktype(p->fd); - - { -#endif - switch(types[index]) { - - case TYPE_HDLC_POS: -#ifdef TYPE_COLOR_HDLC_POS - case TYPE_COLOR_HDLC_POS: -#endif -#ifdef TYPE_DSM_COLOR_HDLC_POS - case TYPE_DSM_COLOR_HDLC_POS: -#endif - if (p->dlt_list != NULL) { - p->dlt_list[index++] = DLT_CHDLC; - p->dlt_list[index++] = DLT_PPP_SERIAL; - p->dlt_list[index++] = DLT_FRELAY; - } - if(!p->linktype) - p->linktype = DLT_CHDLC; - break; - - case TYPE_ETH: -#ifdef TYPE_COLOR_ETH - case TYPE_COLOR_ETH: -#endif -#ifdef TYPE_DSM_COLOR_ETH - case TYPE_DSM_COLOR_ETH: -#endif - /* - * This is (presumably) a real Ethernet capture; give it a - * link-layer-type list with DLT_EN10MB and DLT_DOCSIS, so - * that an application can let you choose it, in case you're - * capturing DOCSIS traffic that a Cisco Cable Modem - * Termination System is putting out onto an Ethernet (it - * doesn't put an Ethernet header onto the wire, it puts raw - * DOCSIS frames out on the wire inside the low-level - * Ethernet framing). - */ - if (p->dlt_list != NULL) { - p->dlt_list[index++] = DLT_EN10MB; - p->dlt_list[index++] = DLT_DOCSIS; - } - if(!p->linktype) - p->linktype = DLT_EN10MB; - break; - - case TYPE_ATM: -#ifdef TYPE_AAL5 - case TYPE_AAL5: -#endif -#ifdef TYPE_MC_ATM - case TYPE_MC_ATM: -#endif -#ifdef TYPE_MC_AAL5 - case TYPE_MC_AAL5: -#endif - if (p->dlt_list != NULL) { - p->dlt_list[index++] = DLT_ATM_RFC1483; - p->dlt_list[index++] = DLT_SUNATM; - } - if(!p->linktype) - p->linktype = DLT_ATM_RFC1483; - break; - -#ifdef TYPE_COLOR_MC_HDLC_POS - case TYPE_COLOR_MC_HDLC_POS: -#endif -#ifdef TYPE_MC_HDLC - case TYPE_MC_HDLC: - if (p->dlt_list != NULL) { - p->dlt_list[index++] = DLT_CHDLC; - p->dlt_list[index++] = DLT_PPP_SERIAL; - p->dlt_list[index++] = DLT_FRELAY; - p->dlt_list[index++] = DLT_MTP2; - p->dlt_list[index++] = DLT_MTP2_WITH_PHDR; - } - if(!p->linktype) - p->linktype = DLT_CHDLC; - break; -#endif - - case TYPE_LEGACY: - if(!p->linktype) - p->linktype = DLT_NULL; - break; - - default: - snprintf(p->errbuf, sizeof(p->errbuf), "unknown DAG linktype %d", types[index]); - return (-1); - - } /* switch */ - } - - p->dlt_count = index; - - return p->linktype; -} diff --git a/contrib/libpcap/pcap-dag.h b/contrib/libpcap/pcap-dag.h deleted file mode 100644 index eff01d6..0000000 --- a/contrib/libpcap/pcap-dag.h +++ /dev/null @@ -1,14 +0,0 @@ -/* - * pcap-dag.c: Packet capture interface for Endace DAG card. - * - * The functionality of this code attempts to mimic that of pcap-linux as much - * as possible. This code is only needed when compiling in the DAG card code - * at the same time as another type of device. - * - * Author: Richard Littin, Sean Irvine ({richard,sean}@reeltwo.com) - * - * @(#) $Header: /tcpdump/master/libpcap/pcap-dag.h,v 1.3.4.1 2005/07/07 06:56:04 guy Exp $ (LBL) - */ - -pcap_t *dag_open_live(const char *device, int snaplen, int promisc, int to_ms, char *ebuf); -int dag_platform_finddevs(pcap_if_t **devlistp, char *errbuf); diff --git a/contrib/libpcap/pcap-dlpi.c b/contrib/libpcap/pcap-dlpi.c deleted file mode 100644 index 8ea7850..0000000 --- a/contrib/libpcap/pcap-dlpi.c +++ /dev/null @@ -1,1873 +0,0 @@ -/* - * Copyright (c) 1993, 1994, 1995, 1996, 1997 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * This code contributed by Atanu Ghosh (atanu@cs.ucl.ac.uk), - * University College London, and subsequently modified by - * Guy Harris (guy@alum.mit.edu), Mark Pizzolato - * <List-tcpdump-workers@subscriptions.pizzolato.net>, - * and Mark C. Brown (mbrown@hp.com). - */ - -/* - * Packet capture routine for DLPI under SunOS 5, HP-UX 9/10/11, and AIX. - * - * Notes: - * - * - The DLIOCRAW ioctl() is specific to SunOS. - * - * - There is a bug in bufmod(7) such that setting the snapshot - * length results in data being left of the front of the packet. - * - * - It might be desirable to use pfmod(7) to filter packets in the - * kernel when possible. - * - * - An older version of the HP-UX DLPI Programmer's Guide, which - * I think was advertised as the 10.20 version, used to be available - * at - * - * http://docs.hp.com/hpux/onlinedocs/B2355-90093/B2355-90093.html - * - * but is no longer available; it can still be found at - * - * http://h21007.www2.hp.com/dspp/files/unprotected/Drivers/Docs/Refs/B2355-90093.pdf - * - * in PDF form. - * - * - The HP-UX 10.x, 11.0, and 11i v1.6 version of the HP-UX DLPI - * Programmer's Guide, which I think was once advertised as the - * 11.00 version is available at - * - * http://docs.hp.com/en/B2355-90139/index.html - * - * - The HP-UX 11i v2 version of the HP-UX DLPI Programmer's Guide - * is available at - * - * http://docs.hp.com/en/B2355-90871/index.html - * - * - All of the HP documents describe raw-mode services, which are - * what we use if DL_HP_RAWDLS is defined. XXX - we use __hpux - * in some places to test for HP-UX, but use DL_HP_RAWDLS in - * other places; do we support any versions of HP-UX without - * DL_HP_RAWDLS? - */ - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/pcap-dlpi.c,v 1.108.2.7 2006/04/04 05:33:02 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <sys/types.h> -#include <sys/time.h> -#ifdef HAVE_SYS_BUFMOD_H -#include <sys/bufmod.h> -#endif -#include <sys/dlpi.h> -#ifdef HAVE_SYS_DLPI_EXT_H -#include <sys/dlpi_ext.h> -#endif -#ifdef HAVE_HPUX9 -#include <sys/socket.h> -#endif -#ifdef DL_HP_PPA_REQ -#include <sys/stat.h> -#endif -#include <sys/stream.h> -#if defined(HAVE_SOLARIS) && defined(HAVE_SYS_BUFMOD_H) -#include <sys/systeminfo.h> -#endif - -#ifdef HAVE_HPUX9 -#include <net/if.h> -#endif - -#include <ctype.h> -#ifdef HAVE_HPUX9 -#include <nlist.h> -#endif -#include <errno.h> -#include <fcntl.h> -#include <memory.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <stropts.h> -#include <unistd.h> - -#ifdef HAVE_LIMITS_H -#include <limits.h> -#else -#define INT_MAX 2147483647 -#endif - -#include "pcap-int.h" - -#ifdef HAVE_OS_PROTO_H -#include "os-proto.h" -#endif - -#ifndef PCAP_DEV_PREFIX -#ifdef _AIX -#define PCAP_DEV_PREFIX "/dev/dlpi" -#else -#define PCAP_DEV_PREFIX "/dev" -#endif -#endif - -#define MAXDLBUF 8192 - -#ifdef HAVE_SYS_BUFMOD_H - -/* - * Size of a bufmod chunk to pass upstream; that appears to be the biggest - * value to which you can set it, and setting it to that value (which - * is bigger than what appears to be the Solaris default of 8192) - * reduces the number of packet drops. - */ -#define CHUNKSIZE 65536 - -/* - * Size of the buffer to allocate for packet data we read; it must be - * large enough to hold a chunk. - */ -#define PKTBUFSIZE CHUNKSIZE - -#else /* HAVE_SYS_BUFMOD_H */ - -/* - * Size of the buffer to allocate for packet data we read; this is - * what the value used to be - there's no particular reason why it - * should be tied to MAXDLBUF, but we'll leave it as this for now. - */ -#define PKTBUFSIZE (MAXDLBUF * sizeof(bpf_u_int32)) - -#endif - -/* Forwards */ -static char *split_dname(char *, int *, char *); -static int dl_doattach(int, int, char *); -#ifdef DL_HP_RAWDLS -static int dl_dohpuxbind(int, char *); -#endif -static int dlattachreq(int, bpf_u_int32, char *); -static int dlbindreq(int, bpf_u_int32, char *); -static int dlbindack(int, char *, char *, int *); -static int dlpromisconreq(int, bpf_u_int32, char *); -static int dlokack(int, const char *, char *, char *); -static int dlinforeq(int, char *); -static int dlinfoack(int, char *, char *); -#ifdef DL_HP_RAWDLS -static int dlrawdatareq(int, const u_char *, int); -#endif -static int recv_ack(int, int, const char *, char *, char *, int *); -static char *dlstrerror(bpf_u_int32); -static char *dlprim(bpf_u_int32); -#if defined(HAVE_SOLARIS) && defined(HAVE_SYS_BUFMOD_H) -static char *get_release(bpf_u_int32 *, bpf_u_int32 *, bpf_u_int32 *); -#endif -static int send_request(int, char *, int, char *, char *); -#ifdef HAVE_SYS_BUFMOD_H -static int strioctl(int, int, int, char *); -#endif -#ifdef HAVE_HPUX9 -static int dlpi_kread(int, off_t, void *, u_int, char *); -#endif -#ifdef HAVE_DEV_DLPI -static int get_dlpi_ppa(int, const char *, int, char *); -#endif - -static int -pcap_stats_dlpi(pcap_t *p, struct pcap_stat *ps) -{ - - /* - * "ps_recv" counts packets handed to the filter, not packets - * that passed the filter. As filtering is done in userland, - * this would not include packets dropped because we ran out - * of buffer space; in order to make this more like other - * platforms (Linux 2.4 and later, BSDs with BPF), where the - * "packets received" count includes packets received but dropped - * due to running out of buffer space, and to keep from confusing - * applications that, for example, compute packet drop percentages, - * we also make it count packets dropped by "bufmod" (otherwise we - * might run the risk of the packet drop count being bigger than - * the received-packet count). - * - * "ps_drop" counts packets dropped by "bufmod" because of - * flow control requirements or resource exhaustion; it doesn't - * count packets dropped by the interface driver, or packets - * dropped upstream. As filtering is done in userland, it counts - * packets regardless of whether they would've passed the filter. - * - * These statistics don't include packets not yet read from - * the kernel by libpcap, but they may include packets not - * yet read from libpcap by the application. - */ - *ps = p->md.stat; - - /* - * Add in the drop count, as per the above comment. - */ - ps->ps_recv += ps->ps_drop; - return (0); -} - -/* XXX Needed by HP-UX (at least) */ -static bpf_u_int32 ctlbuf[MAXDLBUF]; -static struct strbuf ctl = { - MAXDLBUF, - 0, - (char *)ctlbuf -}; - -static int -pcap_read_dlpi(pcap_t *p, int cnt, pcap_handler callback, u_char *user) -{ - register int cc, n, caplen, origlen; - register u_char *bp, *ep, *pk; - register struct bpf_insn *fcode; -#ifdef HAVE_SYS_BUFMOD_H - register struct sb_hdr *sbp; -#ifdef LBL_ALIGN - struct sb_hdr sbhdr; -#endif -#endif - int flags; - struct strbuf data; - struct pcap_pkthdr pkthdr; - - flags = 0; - cc = p->cc; - if (cc == 0) { - data.buf = (char *)p->buffer + p->offset; - data.maxlen = p->bufsize; - data.len = 0; - do { - /* - * Has "pcap_breakloop()" been called? - */ - if (p->break_loop) { - /* - * Yes - clear the flag that indicates - * that it has, and return -2 to - * indicate that we were told to - * break out of the loop. - */ - p->break_loop = 0; - return (-2); - } - /* - * XXX - check for the DLPI primitive, which - * would be DL_HP_RAWDATA_IND on HP-UX - * if we're in raw mode? - */ - if (getmsg(p->fd, &ctl, &data, &flags) < 0) { - /* Don't choke when we get ptraced */ - switch (errno) { - - case EINTR: - cc = 0; - continue; - - case EAGAIN: - return (0); - } - strlcpy(p->errbuf, pcap_strerror(errno), - sizeof(p->errbuf)); - return (-1); - } - cc = data.len; - } while (cc == 0); - bp = p->buffer + p->offset; - } else - bp = p->bp; - - /* Loop through packets */ - fcode = p->fcode.bf_insns; - ep = bp + cc; - n = 0; -#ifdef HAVE_SYS_BUFMOD_H - while (bp < ep) { - /* - * Has "pcap_breakloop()" been called? - * If so, return immediately - if we haven't read any - * packets, clear the flag and return -2 to indicate - * that we were told to break out of the loop, otherwise - * leave the flag set, so that the *next* call will break - * out of the loop without having read any packets, and - * return the number of packets we've processed so far. - */ - if (p->break_loop) { - if (n == 0) { - p->break_loop = 0; - return (-2); - } else { - p->bp = bp; - p->cc = ep - bp; - return (n); - } - } -#ifdef LBL_ALIGN - if ((long)bp & 3) { - sbp = &sbhdr; - memcpy(sbp, bp, sizeof(*sbp)); - } else -#endif - sbp = (struct sb_hdr *)bp; - p->md.stat.ps_drop = sbp->sbh_drops; - pk = bp + sizeof(*sbp); - bp += sbp->sbh_totlen; - origlen = sbp->sbh_origlen; - caplen = sbp->sbh_msglen; -#else - origlen = cc; - caplen = min(p->snapshot, cc); - pk = bp; - bp += caplen; -#endif - ++p->md.stat.ps_recv; - if (bpf_filter(fcode, pk, origlen, caplen)) { -#ifdef HAVE_SYS_BUFMOD_H - pkthdr.ts.tv_sec = sbp->sbh_timestamp.tv_sec; - pkthdr.ts.tv_usec = sbp->sbh_timestamp.tv_usec; -#else - (void)gettimeofday(&pkthdr.ts, NULL); -#endif - pkthdr.len = origlen; - pkthdr.caplen = caplen; - /* Insure caplen does not exceed snapshot */ - if (pkthdr.caplen > p->snapshot) - pkthdr.caplen = p->snapshot; - (*callback)(user, &pkthdr, pk); - if (++n >= cnt && cnt >= 0) { - p->cc = ep - bp; - p->bp = bp; - return (n); - } - } -#ifdef HAVE_SYS_BUFMOD_H - } -#endif - p->cc = 0; - return (n); -} - -static int -pcap_inject_dlpi(pcap_t *p, const void *buf, size_t size) -{ - int ret; - -#if defined(DLIOCRAW) - ret = write(p->fd, buf, size); - if (ret == -1) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "send: %s", - pcap_strerror(errno)); - return (-1); - } -#elif defined(DL_HP_RAWDLS) - if (p->send_fd < 0) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, - "send: Output FD couldn't be opened"); - return (-1); - } - ret = dlrawdatareq(p->send_fd, buf, size); - if (ret == -1) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "send: %s", - pcap_strerror(errno)); - return (-1); - } - /* - * putmsg() returns either 0 or -1; it doesn't indicate how - * many bytes were written (presumably they were all written - * or none of them were written). OpenBSD's pcap_inject() - * returns the number of bytes written, so, for API compatibility, - * we return the number of bytes we were told to write. - */ - ret = size; -#else /* no raw mode */ - /* - * XXX - this is a pain, because you might have to extract - * the address from the packet and use it in a DL_UNITDATA_REQ - * request. That would be dependent on the link-layer type. - * - * I also don't know what SAP you'd have to bind the descriptor - * to, or whether you'd need separate "receive" and "send" FDs, - * nor do I know whether you'd need different bindings for - * D/I/X Ethernet and 802.3, or for {FDDI,Token Ring} plus - * 802.2 and {FDDI,Token Ring} plus 802.2 plus SNAP. - * - * So, for now, we just return a "you can't send" indication, - * and leave it up to somebody with a DLPI-based system lacking - * both DLIOCRAW and DL_HP_RAWDLS to supply code to implement - * packet transmission on that system. If they do, they should - * send it to us - but should not send us code that assumes - * Ethernet; if the code doesn't work on non-Ethernet interfaces, - * it should check "p->linktype" and reject the send request if - * it's anything other than DLT_EN10MB. - */ - strlcpy(p->errbuf, "send: Not supported on this version of this OS", - PCAP_ERRBUF_SIZE); - ret = -1; -#endif /* raw mode */ - return (ret); -} - -#ifndef DL_IPATM -#define DL_IPATM 0x12 /* ATM Classical IP interface */ -#endif - -#ifdef HAVE_SOLARIS -/* - * For SunATM. - */ -#ifndef A_GET_UNITS -#define A_GET_UNITS (('A'<<8)|118) -#endif /* A_GET_UNITS */ -#ifndef A_PROMISCON_REQ -#define A_PROMISCON_REQ (('A'<<8)|121) -#endif /* A_PROMISCON_REQ */ -#endif /* HAVE_SOLARIS */ - -static void -pcap_close_dlpi(pcap_t *p) -{ - pcap_close_common(p); - if (p->send_fd >= 0) - close(p->send_fd); -} - -pcap_t * -pcap_open_live(const char *device, int snaplen, int promisc, int to_ms, - char *ebuf) -{ - register char *cp; - register pcap_t *p; - int ppa; -#ifdef HAVE_SOLARIS - int isatm = 0; -#endif - register dl_info_ack_t *infop; -#ifdef HAVE_SYS_BUFMOD_H - bpf_u_int32 ss, chunksize; -#ifdef HAVE_SOLARIS - register char *release; - bpf_u_int32 osmajor, osminor, osmicro; -#endif -#endif - bpf_u_int32 buf[MAXDLBUF]; - char dname[100]; -#ifndef HAVE_DEV_DLPI - char dname2[100]; -#endif - - p = (pcap_t *)malloc(sizeof(*p)); - if (p == NULL) { - strlcpy(ebuf, pcap_strerror(errno), PCAP_ERRBUF_SIZE); - return (NULL); - } - memset(p, 0, sizeof(*p)); - p->fd = -1; /* indicate that it hasn't been opened yet */ - p->send_fd = -1; - -#ifdef HAVE_DEV_DLPI - /* - ** Remove any "/dev/" on the front of the device. - */ - cp = strrchr(device, '/'); - if (cp == NULL) - strlcpy(dname, device, sizeof(dname)); - else - strlcpy(dname, cp + 1, sizeof(dname)); - - /* - * Split the device name into a device type name and a unit number; - * chop off the unit number, so "dname" is just a device type name. - */ - cp = split_dname(dname, &ppa, ebuf); - if (cp == NULL) - goto bad; - *cp = '\0'; - - /* - * Use "/dev/dlpi" as the device. - * - * XXX - HP's DLPI Programmer's Guide for HP-UX 11.00 says that - * the "dl_mjr_num" field is for the "major number of interface - * driver"; that's the major of "/dev/dlpi" on the system on - * which I tried this, but there may be DLPI devices that - * use a different driver, in which case we may need to - * search "/dev" for the appropriate device with that major - * device number, rather than hardwiring "/dev/dlpi". - */ - cp = "/dev/dlpi"; - if ((p->fd = open(cp, O_RDWR)) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "%s: %s", cp, pcap_strerror(errno)); - goto bad; - } - -#ifdef DL_HP_RAWDLS - /* - * XXX - HP-UX 10.20 and 11.xx don't appear to support sending and - * receiving packets on the same descriptor - you need separate - * descriptors for sending and receiving, bound to different SAPs. - * - * If the open fails, we just leave -1 in "p->send_fd" and reject - * attempts to send packets, just as if, in pcap-bpf.c, we fail - * to open the BPF device for reading and writing, we just try - * to open it for reading only and, if that succeeds, just let - * the send attempts fail. - */ - p->send_fd = open(cp, O_RDWR); -#endif - - /* - * Get a table of all PPAs for that device, and search that - * table for the specified device type name and unit number. - */ - ppa = get_dlpi_ppa(p->fd, dname, ppa, ebuf); - if (ppa < 0) - goto bad; -#else - /* - * If the device name begins with "/", assume it begins with - * the pathname of the directory containing the device to open; - * otherwise, concatenate the device directory name and the - * device name. - */ - if (*device == '/') - strlcpy(dname, device, sizeof(dname)); - else - snprintf(dname, sizeof(dname), "%s/%s", PCAP_DEV_PREFIX, - device); - - /* - * Get the unit number, and a pointer to the end of the device - * type name. - */ - cp = split_dname(dname, &ppa, ebuf); - if (cp == NULL) - goto bad; - - /* - * Make a copy of the device pathname, and then remove the unit - * number from the device pathname. - */ - strlcpy(dname2, dname, sizeof(dname)); - *cp = '\0'; - - /* Try device without unit number */ - if ((p->fd = open(dname, O_RDWR)) < 0) { - if (errno != ENOENT) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "%s: %s", dname, - pcap_strerror(errno)); - goto bad; - } - - /* Try again with unit number */ - if ((p->fd = open(dname2, O_RDWR)) < 0) { - if (errno == ENOENT) { - /* - * We just report "No DLPI device found" - * with the device name, so people don't - * get confused and think, for example, - * that if they can't capture on "lo0" - * on Solaris the fix is to change libpcap - * (or the application that uses it) to - * look for something other than "/dev/lo0", - * as the fix is to look for an operating - * system other than Solaris - you just - * *can't* capture on a loopback interface - * on Solaris, the lack of a DLPI device - * for the loopback interface is just a - * symptom of that inability. - */ - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "%s: No DLPI device found", device); - } else { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "%s: %s", - dname2, pcap_strerror(errno)); - } - goto bad; - } - /* XXX Assume unit zero */ - ppa = 0; - } -#endif - - p->snapshot = snaplen; - - /* - ** Attach if "style 2" provider - */ - if (dlinforeq(p->fd, ebuf) < 0 || - dlinfoack(p->fd, (char *)buf, ebuf) < 0) - goto bad; - infop = &((union DL_primitives *)buf)->info_ack; -#ifdef HAVE_SOLARIS - if (infop->dl_mac_type == DL_IPATM) - isatm = 1; -#endif - if (infop->dl_provider_style == DL_STYLE2) { - if (dl_doattach(p->fd, ppa, ebuf) < 0) - goto bad; -#ifdef DL_HP_RAWDLS - if (p->send_fd >= 0) { - if (dl_doattach(p->send_fd, ppa, ebuf) < 0) - goto bad; - } -#endif - } - - /* - ** Bind (defer if using HP-UX 9 or HP-UX 10.20 or later, totally - ** skip if using SINIX) - */ -#if !defined(HAVE_HPUX9) && !defined(HAVE_HPUX10_20_OR_LATER) && !defined(sinix) -#ifdef _AIX - /* - ** AIX. - ** According to IBM's AIX Support Line, the dl_sap value - ** should not be less than 0x600 (1536) for standard Ethernet. - ** However, we seem to get DL_BADADDR - "DLSAP addr in improper - ** format or invalid" - errors if we use 1537 on the "tr0" - ** device, which, given that its name starts with "tr" and that - ** it's IBM, probably means a Token Ring device. (Perhaps we - ** need to use 1537 on "/dev/dlpi/en" because that device is for - ** D/I/X Ethernet, the "SAP" is actually an Ethernet type, and - ** it rejects invalid Ethernet types.) - ** - ** So if 1537 fails, we try 2, as Hyung Sik Yoon of IBM Korea - ** says that works on Token Ring (he says that 0 does *not* - ** work; perhaps that's considered an invalid LLC SAP value - I - ** assume the SAP value in a DLPI bind is an LLC SAP for network - ** types that use 802.2 LLC). - */ - if ((dlbindreq(p->fd, 1537, ebuf) < 0 && - dlbindreq(p->fd, 2, ebuf) < 0) || - dlbindack(p->fd, (char *)buf, ebuf, NULL) < 0) - goto bad; -#elif defined(DL_HP_RAWDLS) - /* - ** HP-UX 10.0x and 10.1x. - */ - if (dl_dohpuxbind(p->fd, ebuf) < 0) - goto bad; - if (p->send_fd >= 0) { - /* - ** XXX - if this fails, just close send_fd and - ** set it to -1, so that you can't send but can - ** still receive? - */ - if (dl_dohpuxbind(p->send_fd, ebuf) < 0) - goto bad; - } -#else /* neither AIX nor HP-UX */ - /* - ** Not Sinix, and neither AIX nor HP-UX - Solaris, and any other - ** OS using DLPI. - **/ - if (dlbindreq(p->fd, 0, ebuf) < 0 || - dlbindack(p->fd, (char *)buf, ebuf, NULL) < 0) - goto bad; -#endif /* AIX vs. HP-UX vs. other */ -#endif /* !HP-UX 9 and !HP-UX 10.20 or later and !SINIX */ - -#ifdef HAVE_SOLARIS - if (isatm) { - /* - ** Have to turn on some special ATM promiscuous mode - ** for SunATM. - ** Do *NOT* turn regular promiscuous mode on; it doesn't - ** help, and may break things. - */ - if (strioctl(p->fd, A_PROMISCON_REQ, 0, NULL) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "A_PROMISCON_REQ: %s", - pcap_strerror(errno)); - goto bad; - } - } else -#endif - if (promisc) { - /* - ** Enable promiscuous (not necessary on send FD) - */ - if (dlpromisconreq(p->fd, DL_PROMISC_PHYS, ebuf) < 0 || - dlokack(p->fd, "promisc_phys", (char *)buf, ebuf) < 0) - goto bad; - - /* - ** Try to enable multicast (you would have thought - ** promiscuous would be sufficient). (Skip if using - ** HP-UX or SINIX) (Not necessary on send FD) - */ -#if !defined(__hpux) && !defined(sinix) - if (dlpromisconreq(p->fd, DL_PROMISC_MULTI, ebuf) < 0 || - dlokack(p->fd, "promisc_multi", (char *)buf, ebuf) < 0) - fprintf(stderr, - "WARNING: DL_PROMISC_MULTI failed (%s)\n", ebuf); -#endif - } - /* - ** Try to enable SAP promiscuity (when not in promiscuous mode - ** when using HP-UX, when not doing SunATM on Solaris, and never - ** under SINIX) (Not necessary on send FD) - */ -#ifndef sinix - if ( -#ifdef __hpux - !promisc && -#endif -#ifdef HAVE_SOLARIS - !isatm && -#endif - (dlpromisconreq(p->fd, DL_PROMISC_SAP, ebuf) < 0 || - dlokack(p->fd, "promisc_sap", (char *)buf, ebuf) < 0)) { - /* Not fatal if promisc since the DL_PROMISC_PHYS worked */ - if (promisc) - fprintf(stderr, - "WARNING: DL_PROMISC_SAP failed (%s)\n", ebuf); - else - goto bad; - } -#endif /* sinix */ - - /* - ** HP-UX 9, and HP-UX 10.20 or later, must bind after setting - ** promiscuous options. - */ -#if defined(HAVE_HPUX9) || defined(HAVE_HPUX10_20_OR_LATER) - if (dl_dohpuxbind(p->fd, ebuf) < 0) - goto bad; - /* - ** We don't set promiscuous mode on the send FD, but we'll defer - ** binding it anyway, just to keep the HP-UX 9/10.20 or later - ** code together. - */ - if (p->send_fd >= 0) { - /* - ** XXX - if this fails, just close send_fd and - ** set it to -1, so that you can't send but can - ** still receive? - */ - if (dl_dohpuxbind(p->send_fd, ebuf) < 0) - goto bad; - } -#endif - - /* - ** Determine link type - ** XXX - get SAP length and address length as well, for use - ** when sending packets. - */ - if (dlinforeq(p->fd, ebuf) < 0 || - dlinfoack(p->fd, (char *)buf, ebuf) < 0) - goto bad; - - infop = &((union DL_primitives *)buf)->info_ack; - switch (infop->dl_mac_type) { - - case DL_CSMACD: - case DL_ETHER: - p->linktype = DLT_EN10MB; - p->offset = 2; - /* - * This is (presumably) a real Ethernet capture; give it a - * link-layer-type list with DLT_EN10MB and DLT_DOCSIS, so - * that an application can let you choose it, in case you're - * capturing DOCSIS traffic that a Cisco Cable Modem - * Termination System is putting out onto an Ethernet (it - * doesn't put an Ethernet header onto the wire, it puts raw - * DOCSIS frames out on the wire inside the low-level - * Ethernet framing). - */ - p->dlt_list = (u_int *) malloc(sizeof(u_int) * 2); - /* - * If that fails, just leave the list empty. - */ - if (p->dlt_list != NULL) { - p->dlt_list[0] = DLT_EN10MB; - p->dlt_list[1] = DLT_DOCSIS; - p->dlt_count = 2; - } - break; - - case DL_FDDI: - p->linktype = DLT_FDDI; - p->offset = 3; - break; - - case DL_TPR: - /* - * XXX - what about DL_TPB? Is that Token Bus? - */ - p->linktype = DLT_IEEE802; - p->offset = 2; - break; - -#ifdef HAVE_SOLARIS - case DL_IPATM: - p->linktype = DLT_SUNATM; - p->offset = 0; /* works for LANE and LLC encapsulation */ - break; -#endif - - default: - snprintf(ebuf, PCAP_ERRBUF_SIZE, "unknown mac type %lu", - (unsigned long)infop->dl_mac_type); - goto bad; - } - -#ifdef DLIOCRAW - /* - ** This is a non standard SunOS hack to get the full raw link-layer - ** header. - */ - if (strioctl(p->fd, DLIOCRAW, 0, NULL) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "DLIOCRAW: %s", - pcap_strerror(errno)); - goto bad; - } -#endif - -#ifdef HAVE_SYS_BUFMOD_H - /* - ** Another non standard call to get the data nicely buffered - */ - if (ioctl(p->fd, I_PUSH, "bufmod") != 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "I_PUSH bufmod: %s", - pcap_strerror(errno)); - goto bad; - } - - /* - ** Now that the bufmod is pushed lets configure it. - ** - ** There is a bug in bufmod(7). When dealing with messages of - ** less than snaplen size it strips data from the beginning not - ** the end. - ** - ** This bug is supposed to be fixed in 5.3.2. Also, there is a - ** patch available. Ask for bugid 1149065. - */ - ss = snaplen; -#ifdef HAVE_SOLARIS - release = get_release(&osmajor, &osminor, &osmicro); - if (osmajor == 5 && (osminor <= 2 || (osminor == 3 && osmicro < 2)) && - getenv("BUFMOD_FIXED") == NULL) { - fprintf(stderr, - "WARNING: bufmod is broken in SunOS %s; ignoring snaplen.\n", - release); - ss = 0; - } -#endif - if (ss > 0 && - strioctl(p->fd, SBIOCSSNAP, sizeof(ss), (char *)&ss) != 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "SBIOCSSNAP: %s", - pcap_strerror(errno)); - goto bad; - } - - /* - ** Set up the bufmod timeout - */ - if (to_ms != 0) { - struct timeval to; - - to.tv_sec = to_ms / 1000; - to.tv_usec = (to_ms * 1000) % 1000000; - if (strioctl(p->fd, SBIOCSTIME, sizeof(to), (char *)&to) != 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "SBIOCSTIME: %s", - pcap_strerror(errno)); - goto bad; - } - } - - /* - ** Set the chunk length. - */ - chunksize = CHUNKSIZE; - if (strioctl(p->fd, SBIOCSCHUNK, sizeof(chunksize), (char *)&chunksize) - != 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "SBIOCSCHUNKP: %s", - pcap_strerror(errno)); - goto bad; - } -#endif - - /* - ** As the last operation flush the read side. - */ - if (ioctl(p->fd, I_FLUSH, FLUSHR) != 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "FLUSHR: %s", - pcap_strerror(errno)); - goto bad; - } - - /* Allocate data buffer */ - p->bufsize = PKTBUFSIZE; - p->buffer = (u_char *)malloc(p->bufsize + p->offset); - if (p->buffer == NULL) { - strlcpy(ebuf, pcap_strerror(errno), PCAP_ERRBUF_SIZE); - goto bad; - } - - /* - * "p->fd" is an FD for a STREAMS device, so "select()" and - * "poll()" should work on it. - */ - p->selectable_fd = p->fd; - - p->read_op = pcap_read_dlpi; - p->inject_op = pcap_inject_dlpi; - p->setfilter_op = install_bpf_program; /* no kernel filtering */ - p->setdirection_op = NULL; /* Not implemented.*/ - p->set_datalink_op = NULL; /* can't change data link type */ - p->getnonblock_op = pcap_getnonblock_fd; - p->setnonblock_op = pcap_setnonblock_fd; - p->stats_op = pcap_stats_dlpi; - p->close_op = pcap_close_dlpi; - - return (p); -bad: - if (p->fd >= 0) - close(p->fd); - if (p->send_fd >= 0) - close(p->send_fd); - /* - * Get rid of any link-layer type list we allocated. - */ - if (p->dlt_list != NULL) - free(p->dlt_list); - free(p); - return (NULL); -} - -/* - * Split a device name into a device type name and a unit number; - * return the a pointer to the beginning of the unit number, which - * is the end of the device type name, and set "*unitp" to the unit - * number. - * - * Returns NULL on error, and fills "ebuf" with an error message. - */ -static char * -split_dname(char *device, int *unitp, char *ebuf) -{ - char *cp; - char *eos; - long unit; - - /* - * Look for a number at the end of the device name string. - */ - cp = device + strlen(device) - 1; - if (*cp < '0' || *cp > '9') { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "%s missing unit number", - device); - return (NULL); - } - - /* Digits at end of string are unit number */ - while (cp-1 >= device && *(cp-1) >= '0' && *(cp-1) <= '9') - cp--; - - errno = 0; - unit = strtol(cp, &eos, 10); - if (*eos != '\0') { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "%s bad unit number", device); - return (NULL); - } - if (errno == ERANGE || unit > INT_MAX) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "%s unit number too large", - device); - return (NULL); - } - if (unit < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "%s unit number is negative", - device); - return (NULL); - } - *unitp = (int)unit; - return (cp); -} - -static int -dl_doattach(int fd, int ppa, char *ebuf) -{ - bpf_u_int32 buf[MAXDLBUF]; - - if (dlattachreq(fd, ppa, ebuf) < 0 || - dlokack(fd, "attach", (char *)buf, ebuf) < 0) - return (-1); - return (0); -} - -#ifdef DL_HP_RAWDLS -static int -dl_dohpuxbind(int fd, char *ebuf) -{ - int hpsap; - int uerror; - bpf_u_int32 buf[MAXDLBUF]; - - /* - * XXX - we start at 22 because we used to use only 22, but - * that was just because that was the value used in some - * sample code from HP. With what value *should* we start? - * Does it matter, given that we're enabling SAP promiscuity - * on the input FD? - */ - hpsap = 22; - for (;;) { - if (dlbindreq(fd, hpsap, ebuf) < 0) - return (-1); - if (dlbindack(fd, (char *)buf, ebuf, &uerror) >= 0) - break; - /* - * For any error other than a UNIX EBUSY, give up. - */ - if (uerror != EBUSY) { - /* - * dlbindack() has already filled in ebuf for - * this error. - */ - return (-1); - } - - /* - * For EBUSY, try the next SAP value; that means that - * somebody else is using that SAP. Clear ebuf so - * that application doesn't report the "Device busy" - * error as a warning. - */ - *ebuf = '\0'; - hpsap++; - if (hpsap > 100) { - strlcpy(ebuf, - "All SAPs from 22 through 100 are in use", - PCAP_ERRBUF_SIZE); - return (-1); - } - } - return (0); -} -#endif - -int -pcap_platform_finddevs(pcap_if_t **alldevsp, char *errbuf) -{ -#ifdef HAVE_SOLARIS - int fd; - union { - u_int nunits; - char pad[516]; /* XXX - must be at least 513; is 516 - in "atmgetunits" */ - } buf; - char baname[2+1+1]; - u_int i; - - /* - * We may have to do special magic to get ATM devices. - */ - if ((fd = open("/dev/ba", O_RDWR)) < 0) { - /* - * We couldn't open the "ba" device. - * For now, just give up; perhaps we should - * return an error if the problem is neither - * a "that device doesn't exist" error (ENOENT, - * ENXIO, etc.) or a "you're not allowed to do - * that" error (EPERM, EACCES). - */ - return (0); - } - - if (strioctl(fd, A_GET_UNITS, sizeof(buf), (char *)&buf) < 0) { - snprintf(errbuf, PCAP_ERRBUF_SIZE, "A_GET_UNITS: %s", - pcap_strerror(errno)); - return (-1); - } - for (i = 0; i < buf.nunits; i++) { - snprintf(baname, sizeof baname, "ba%u", i); - if (pcap_add_if(alldevsp, baname, 0, NULL, errbuf) < 0) - return (-1); - } -#endif - - return (0); -} - -static int -send_request(int fd, char *ptr, int len, char *what, char *ebuf) -{ - struct strbuf ctl; - int flags; - - ctl.maxlen = 0; - ctl.len = len; - ctl.buf = ptr; - - flags = 0; - if (putmsg(fd, &ctl, (struct strbuf *) NULL, flags) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "send_request: putmsg \"%s\": %s", - what, pcap_strerror(errno)); - return (-1); - } - return (0); -} - -static int -recv_ack(int fd, int size, const char *what, char *bufp, char *ebuf, int *uerror) -{ - union DL_primitives *dlp; - struct strbuf ctl; - int flags; - - /* - * Clear out "*uerror", so it's only set for DL_ERROR_ACK/DL_SYSERR, - * making that the only place where EBUSY is treated specially. - */ - if (uerror != NULL) - *uerror = 0; - - ctl.maxlen = MAXDLBUF; - ctl.len = 0; - ctl.buf = bufp; - - flags = 0; - if (getmsg(fd, &ctl, (struct strbuf*)NULL, &flags) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "recv_ack: %s getmsg: %s", - what, pcap_strerror(errno)); - return (-1); - } - - dlp = (union DL_primitives *) ctl.buf; - switch (dlp->dl_primitive) { - - case DL_INFO_ACK: - case DL_BIND_ACK: - case DL_OK_ACK: -#ifdef DL_HP_PPA_ACK - case DL_HP_PPA_ACK: -#endif - /* These are OK */ - break; - - case DL_ERROR_ACK: - switch (dlp->error_ack.dl_errno) { - - case DL_SYSERR: - if (uerror != NULL) - *uerror = dlp->error_ack.dl_unix_errno; - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "recv_ack: %s: UNIX error - %s", - what, pcap_strerror(dlp->error_ack.dl_unix_errno)); - break; - - default: - snprintf(ebuf, PCAP_ERRBUF_SIZE, "recv_ack: %s: %s", - what, dlstrerror(dlp->error_ack.dl_errno)); - break; - } - return (-1); - - default: - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "recv_ack: %s: Unexpected primitive ack %s", - what, dlprim(dlp->dl_primitive)); - return (-1); - } - - if (ctl.len < size) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "recv_ack: %s: Ack too small (%d < %d)", - what, ctl.len, size); - return (-1); - } - return (ctl.len); -} - -static char * -dlstrerror(bpf_u_int32 dl_errno) -{ - static char errstring[6+2+8+1]; - - switch (dl_errno) { - - case DL_ACCESS: - return ("Improper permissions for request"); - - case DL_BADADDR: - return ("DLSAP addr in improper format or invalid"); - - case DL_BADCORR: - return ("Seq number not from outstand DL_CONN_IND"); - - case DL_BADDATA: - return ("User data exceeded provider limit"); - - case DL_BADPPA: -#ifdef HAVE_DEV_DLPI - /* - * With a single "/dev/dlpi" device used for all - * DLPI providers, PPAs have nothing to do with - * unit numbers. - */ - return ("Specified PPA was invalid"); -#else - /* - * We have separate devices for separate devices; - * the PPA is just the unit number. - */ - return ("Specified PPA (device unit) was invalid"); -#endif - - case DL_BADPRIM: - return ("Primitive received not known by provider"); - - case DL_BADQOSPARAM: - return ("QOS parameters contained invalid values"); - - case DL_BADQOSTYPE: - return ("QOS structure type is unknown/unsupported"); - - case DL_BADSAP: - return ("Bad LSAP selector"); - - case DL_BADTOKEN: - return ("Token used not an active stream"); - - case DL_BOUND: - return ("Attempted second bind with dl_max_conind"); - - case DL_INITFAILED: - return ("Physical link initialization failed"); - - case DL_NOADDR: - return ("Provider couldn't allocate alternate address"); - - case DL_NOTINIT: - return ("Physical link not initialized"); - - case DL_OUTSTATE: - return ("Primitive issued in improper state"); - - case DL_SYSERR: - return ("UNIX system error occurred"); - - case DL_UNSUPPORTED: - return ("Requested service not supplied by provider"); - - case DL_UNDELIVERABLE: - return ("Previous data unit could not be delivered"); - - case DL_NOTSUPPORTED: - return ("Primitive is known but not supported"); - - case DL_TOOMANY: - return ("Limit exceeded"); - - case DL_NOTENAB: - return ("Promiscuous mode not enabled"); - - case DL_BUSY: - return ("Other streams for PPA in post-attached"); - - case DL_NOAUTO: - return ("Automatic handling XID&TEST not supported"); - - case DL_NOXIDAUTO: - return ("Automatic handling of XID not supported"); - - case DL_NOTESTAUTO: - return ("Automatic handling of TEST not supported"); - - case DL_XIDAUTO: - return ("Automatic handling of XID response"); - - case DL_TESTAUTO: - return ("Automatic handling of TEST response"); - - case DL_PENDING: - return ("Pending outstanding connect indications"); - - default: - sprintf(errstring, "Error %02x", dl_errno); - return (errstring); - } -} - -static char * -dlprim(bpf_u_int32 prim) -{ - static char primbuf[80]; - - switch (prim) { - - case DL_INFO_REQ: - return ("DL_INFO_REQ"); - - case DL_INFO_ACK: - return ("DL_INFO_ACK"); - - case DL_ATTACH_REQ: - return ("DL_ATTACH_REQ"); - - case DL_DETACH_REQ: - return ("DL_DETACH_REQ"); - - case DL_BIND_REQ: - return ("DL_BIND_REQ"); - - case DL_BIND_ACK: - return ("DL_BIND_ACK"); - - case DL_UNBIND_REQ: - return ("DL_UNBIND_REQ"); - - case DL_OK_ACK: - return ("DL_OK_ACK"); - - case DL_ERROR_ACK: - return ("DL_ERROR_ACK"); - - case DL_SUBS_BIND_REQ: - return ("DL_SUBS_BIND_REQ"); - - case DL_SUBS_BIND_ACK: - return ("DL_SUBS_BIND_ACK"); - - case DL_UNITDATA_REQ: - return ("DL_UNITDATA_REQ"); - - case DL_UNITDATA_IND: - return ("DL_UNITDATA_IND"); - - case DL_UDERROR_IND: - return ("DL_UDERROR_IND"); - - case DL_UDQOS_REQ: - return ("DL_UDQOS_REQ"); - - case DL_CONNECT_REQ: - return ("DL_CONNECT_REQ"); - - case DL_CONNECT_IND: - return ("DL_CONNECT_IND"); - - case DL_CONNECT_RES: - return ("DL_CONNECT_RES"); - - case DL_CONNECT_CON: - return ("DL_CONNECT_CON"); - - case DL_TOKEN_REQ: - return ("DL_TOKEN_REQ"); - - case DL_TOKEN_ACK: - return ("DL_TOKEN_ACK"); - - case DL_DISCONNECT_REQ: - return ("DL_DISCONNECT_REQ"); - - case DL_DISCONNECT_IND: - return ("DL_DISCONNECT_IND"); - - case DL_RESET_REQ: - return ("DL_RESET_REQ"); - - case DL_RESET_IND: - return ("DL_RESET_IND"); - - case DL_RESET_RES: - return ("DL_RESET_RES"); - - case DL_RESET_CON: - return ("DL_RESET_CON"); - - default: - (void) sprintf(primbuf, "unknown primitive 0x%x", prim); - return (primbuf); - } -} - -static int -dlattachreq(int fd, bpf_u_int32 ppa, char *ebuf) -{ - dl_attach_req_t req; - - req.dl_primitive = DL_ATTACH_REQ; - req.dl_ppa = ppa; - - return (send_request(fd, (char *)&req, sizeof(req), "attach", ebuf)); -} - -static int -dlbindreq(int fd, bpf_u_int32 sap, char *ebuf) -{ - - dl_bind_req_t req; - - memset((char *)&req, 0, sizeof(req)); - req.dl_primitive = DL_BIND_REQ; - /* XXX - what if neither of these are defined? */ -#if defined(DL_HP_RAWDLS) - req.dl_max_conind = 1; /* XXX magic number */ - req.dl_service_mode = DL_HP_RAWDLS; -#elif defined(DL_CLDLS) - req.dl_service_mode = DL_CLDLS; -#endif - req.dl_sap = sap; - - return (send_request(fd, (char *)&req, sizeof(req), "bind", ebuf)); -} - -static int -dlbindack(int fd, char *bufp, char *ebuf, int *uerror) -{ - - return (recv_ack(fd, DL_BIND_ACK_SIZE, "bind", bufp, ebuf, uerror)); -} - -static int -dlpromisconreq(int fd, bpf_u_int32 level, char *ebuf) -{ - dl_promiscon_req_t req; - - req.dl_primitive = DL_PROMISCON_REQ; - req.dl_level = level; - - return (send_request(fd, (char *)&req, sizeof(req), "promiscon", ebuf)); -} - -static int -dlokack(int fd, const char *what, char *bufp, char *ebuf) -{ - - return (recv_ack(fd, DL_OK_ACK_SIZE, what, bufp, ebuf, NULL)); -} - - -static int -dlinforeq(int fd, char *ebuf) -{ - dl_info_req_t req; - - req.dl_primitive = DL_INFO_REQ; - - return (send_request(fd, (char *)&req, sizeof(req), "info", ebuf)); -} - -static int -dlinfoack(int fd, char *bufp, char *ebuf) -{ - - return (recv_ack(fd, DL_INFO_ACK_SIZE, "info", bufp, ebuf, NULL)); -} - -#ifdef DL_HP_RAWDLS -/* - * There's an ack *if* there's an error. - */ -static int -dlrawdatareq(int fd, const u_char *datap, int datalen) -{ - struct strbuf ctl, data; - long buf[MAXDLBUF]; /* XXX - char? */ - union DL_primitives *dlp; - int dlen; - - dlp = (union DL_primitives*) buf; - - dlp->dl_primitive = DL_HP_RAWDATA_REQ; - dlen = DL_HP_RAWDATA_REQ_SIZE; - - /* - * HP's documentation doesn't appear to show us supplying any - * address pointed to by the control part of the message. - * I think that's what raw mode means - you just send the raw - * packet, you don't specify where to send it to, as that's - * implied by the destination address. - */ - ctl.maxlen = 0; - ctl.len = dlen; - ctl.buf = (void *)buf; - - data.maxlen = 0; - data.len = datalen; - data.buf = (void *)datap; - - return (putmsg(fd, &ctl, &data, 0)); -} -#endif /* DL_HP_RAWDLS */ - -#ifdef HAVE_SYS_BUFMOD_H -static int -strioctl(int fd, int cmd, int len, char *dp) -{ - struct strioctl str; - int rc; - - str.ic_cmd = cmd; - str.ic_timout = -1; - str.ic_len = len; - str.ic_dp = dp; - rc = ioctl(fd, I_STR, &str); - - if (rc < 0) - return (rc); - else - return (str.ic_len); -} -#endif - -#if defined(HAVE_SOLARIS) && defined(HAVE_SYS_BUFMOD_H) -static char * -get_release(bpf_u_int32 *majorp, bpf_u_int32 *minorp, bpf_u_int32 *microp) -{ - char *cp; - static char buf[32]; - - *majorp = 0; - *minorp = 0; - *microp = 0; - if (sysinfo(SI_RELEASE, buf, sizeof(buf)) < 0) - return ("?"); - cp = buf; - if (!isdigit((unsigned char)*cp)) - return (buf); - *majorp = strtol(cp, &cp, 10); - if (*cp++ != '.') - return (buf); - *minorp = strtol(cp, &cp, 10); - if (*cp++ != '.') - return (buf); - *microp = strtol(cp, &cp, 10); - return (buf); -} -#endif - -#ifdef DL_HP_PPA_REQ -/* - * Under HP-UX 10 and HP-UX 11, we can ask for the ppa - */ - - -/* - * Determine ppa number that specifies ifname. - * - * If the "dl_hp_ppa_info_t" doesn't have a "dl_module_id_1" member, - * the code that's used here is the old code for HP-UX 10.x. - * - * However, HP-UX 10.20, at least, appears to have such a member - * in its "dl_hp_ppa_info_t" structure, so the new code is used. - * The new code didn't work on an old 10.20 system on which Rick - * Jones of HP tried it, but with later patches installed, it - * worked - it appears that the older system had those members but - * didn't put anything in them, so, if the search by name fails, we - * do the old search. - * - * Rick suggests that making sure your system is "up on the latest - * lancommon/DLPI/driver patches" is probably a good idea; it'd fix - * that problem, as well as allowing libpcap to see packets sent - * from the system on which the libpcap application is being run. - * (On 10.20, in addition to getting the latest patches, you need - * to turn the kernel "lanc_outbound_promisc_flag" flag on with ADB; - * a posting to "comp.sys.hp.hpux" at - * - * http://www.deja.com/[ST_rn=ps]/getdoc.xp?AN=558092266 - * - * says that, to see the machine's outgoing traffic, you'd need to - * apply the right patches to your system, and also set that variable - * with: - -echo 'lanc_outbound_promisc_flag/W1' | /usr/bin/adb -w /stand/vmunix /dev/kmem - - * which could be put in, for example, "/sbin/init.d/lan". - * - * Setting the variable is not necessary on HP-UX 11.x. - */ -static int -get_dlpi_ppa(register int fd, register const char *device, register int unit, - register char *ebuf) -{ - register dl_hp_ppa_ack_t *ap; - register dl_hp_ppa_info_t *ipstart, *ip; - register int i; - char dname[100]; - register u_long majdev; - struct stat statbuf; - dl_hp_ppa_req_t req; - char buf[MAXDLBUF]; - char *ppa_data_buf; - dl_hp_ppa_ack_t *dlp; - struct strbuf ctl; - int flags; - int ppa; - - memset((char *)&req, 0, sizeof(req)); - req.dl_primitive = DL_HP_PPA_REQ; - - memset((char *)buf, 0, sizeof(buf)); - if (send_request(fd, (char *)&req, sizeof(req), "hpppa", ebuf) < 0) - return (-1); - - ctl.maxlen = DL_HP_PPA_ACK_SIZE; - ctl.len = 0; - ctl.buf = (char *)buf; - - flags = 0; - /* - * DLPI may return a big chunk of data for a DL_HP_PPA_REQ. The normal - * recv_ack will fail because it set the maxlen to MAXDLBUF (8192) - * which is NOT big enough for a DL_HP_PPA_REQ. - * - * This causes libpcap applications to fail on a system with HP-APA - * installed. - * - * To figure out how big the returned data is, we first call getmsg - * to get the small head and peek at the head to get the actual data - * length, and then issue another getmsg to get the actual PPA data. - */ - /* get the head first */ - if (getmsg(fd, &ctl, (struct strbuf *)NULL, &flags) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "get_dlpi_ppa: hpppa getmsg: %s", pcap_strerror(errno)); - return (-1); - } - - dlp = (dl_hp_ppa_ack_t *)ctl.buf; - if (dlp->dl_primitive != DL_HP_PPA_ACK) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "get_dlpi_ppa: hpppa unexpected primitive ack 0x%x", - (bpf_u_int32)dlp->dl_primitive); - return (-1); - } - - if (ctl.len < DL_HP_PPA_ACK_SIZE) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "get_dlpi_ppa: hpppa ack too small (%d < %lu)", - ctl.len, (unsigned long)DL_HP_PPA_ACK_SIZE); - return (-1); - } - - /* allocate buffer */ - if ((ppa_data_buf = (char *)malloc(dlp->dl_length)) == NULL) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "get_dlpi_ppa: hpppa malloc: %s", pcap_strerror(errno)); - return (-1); - } - ctl.maxlen = dlp->dl_length; - ctl.len = 0; - ctl.buf = (char *)ppa_data_buf; - /* get the data */ - if (getmsg(fd, &ctl, (struct strbuf *)NULL, &flags) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "get_dlpi_ppa: hpppa getmsg: %s", pcap_strerror(errno)); - free(ppa_data_buf); - return (-1); - } - if (ctl.len < dlp->dl_length) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "get_dlpi_ppa: hpppa ack too small (%d < %d)", - ctl.len, dlp->dl_length); - free(ppa_data_buf); - return (-1); - } - - ap = (dl_hp_ppa_ack_t *)buf; - ipstart = (dl_hp_ppa_info_t *)ppa_data_buf; - ip = ipstart; - -#ifdef HAVE_HP_PPA_INFO_T_DL_MODULE_ID_1 - /* - * The "dl_hp_ppa_info_t" structure has a "dl_module_id_1" - * member that should, in theory, contain the part of the - * name for the device that comes before the unit number, - * and should also have a "dl_module_id_2" member that may - * contain an alternate name (e.g., I think Ethernet devices - * have both "lan", for "lanN", and "snap", for "snapN", with - * the former being for Ethernet packets and the latter being - * for 802.3/802.2 packets). - * - * Search for the device that has the specified name and - * instance number. - */ - for (i = 0; i < ap->dl_count; i++) { - if ((strcmp((const char *)ip->dl_module_id_1, device) == 0 || - strcmp((const char *)ip->dl_module_id_2, device) == 0) && - ip->dl_instance_num == unit) - break; - - ip = (dl_hp_ppa_info_t *)((u_char *)ipstart + ip->dl_next_offset); - } -#else - /* - * We don't have that member, so the search is impossible; make it - * look as if the search failed. - */ - i = ap->dl_count; -#endif - - if (i == ap->dl_count) { - /* - * Well, we didn't, or can't, find the device by name. - * - * HP-UX 10.20, whilst it has "dl_module_id_1" and - * "dl_module_id_2" fields in the "dl_hp_ppa_info_t", - * doesn't seem to fill them in unless the system is - * at a reasonably up-to-date patch level. - * - * Older HP-UX 10.x systems might not have those fields - * at all. - * - * Therefore, we'll search for the entry with the major - * device number of a device with the name "/dev/<dev><unit>", - * if such a device exists, as the old code did. - */ - snprintf(dname, sizeof(dname), "/dev/%s%d", device, unit); - if (stat(dname, &statbuf) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "stat: %s: %s", - dname, pcap_strerror(errno)); - return (-1); - } - majdev = major(statbuf.st_rdev); - - ip = ipstart; - - for (i = 0; i < ap->dl_count; i++) { - if (ip->dl_mjr_num == majdev && - ip->dl_instance_num == unit) - break; - - ip = (dl_hp_ppa_info_t *)((u_char *)ipstart + ip->dl_next_offset); - } - } - if (i == ap->dl_count) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "can't find /dev/dlpi PPA for %s%d", device, unit); - return (-1); - } - if (ip->dl_hdw_state == HDW_DEAD) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "%s%d: hardware state: DOWN\n", device, unit); - free(ppa_data_buf); - return (-1); - } - ppa = ip->dl_ppa; - free(ppa_data_buf); - return (ppa); -} -#endif - -#ifdef HAVE_HPUX9 -/* - * Under HP-UX 9, there is no good way to determine the ppa. - * So punt and read it from /dev/kmem. - */ -static struct nlist nl[] = { -#define NL_IFNET 0 - { "ifnet" }, - { "" } -}; - -static char path_vmunix[] = "/hp-ux"; - -/* Determine ppa number that specifies ifname */ -static int -get_dlpi_ppa(register int fd, register const char *ifname, register int unit, - register char *ebuf) -{ - register const char *cp; - register int kd; - void *addr; - struct ifnet ifnet; - char if_name[sizeof(ifnet.if_name) + 1]; - - cp = strrchr(ifname, '/'); - if (cp != NULL) - ifname = cp + 1; - if (nlist(path_vmunix, &nl) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "nlist %s failed", - path_vmunix); - return (-1); - } - if (nl[NL_IFNET].n_value == 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "could't find %s kernel symbol", - nl[NL_IFNET].n_name); - return (-1); - } - kd = open("/dev/kmem", O_RDONLY); - if (kd < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "kmem open: %s", - pcap_strerror(errno)); - return (-1); - } - if (dlpi_kread(kd, nl[NL_IFNET].n_value, - &addr, sizeof(addr), ebuf) < 0) { - close(kd); - return (-1); - } - for (; addr != NULL; addr = ifnet.if_next) { - if (dlpi_kread(kd, (off_t)addr, - &ifnet, sizeof(ifnet), ebuf) < 0 || - dlpi_kread(kd, (off_t)ifnet.if_name, - if_name, sizeof(ifnet.if_name), ebuf) < 0) { - (void)close(kd); - return (-1); - } - if_name[sizeof(ifnet.if_name)] = '\0'; - if (strcmp(if_name, ifname) == 0 && ifnet.if_unit == unit) - return (ifnet.if_index); - } - - snprintf(ebuf, PCAP_ERRBUF_SIZE, "Can't find %s", ifname); - return (-1); -} - -static int -dlpi_kread(register int fd, register off_t addr, - register void *buf, register u_int len, register char *ebuf) -{ - register int cc; - - if (lseek(fd, addr, SEEK_SET) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "lseek: %s", - pcap_strerror(errno)); - return (-1); - } - cc = read(fd, buf, len); - if (cc < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "read: %s", - pcap_strerror(errno)); - return (-1); - } else if (cc != len) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "short read (%d != %d)", cc, - len); - return (-1); - } - return (cc); -} -#endif diff --git a/contrib/libpcap/pcap-dos.c b/contrib/libpcap/pcap-dos.c deleted file mode 100644 index 0700d6b..0000000 --- a/contrib/libpcap/pcap-dos.c +++ /dev/null @@ -1,1474 +0,0 @@ -/* - * This file is part of DOS-libpcap - * Ported to DOS/DOSX by G. Vanem <giva@bgnett.no> - * - * pcap-dos.c: Interface to PKTDRVR, NDIS2 and 32-bit pmode - * network drivers. - * - * @(#) $Header: /tcpdump/master/libpcap/pcap-dos.c,v 1.1.2.1 2005/05/03 18:54:35 guy Exp $ (LBL) - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <signal.h> -#include <float.h> -#include <fcntl.h> -#include <io.h> - -#if defined(USE_32BIT_DRIVERS) - #include "msdos/pm_drvr/pmdrvr.h" - #include "msdos/pm_drvr/pci.h" - #include "msdos/pm_drvr/bios32.h" - #include "msdos/pm_drvr/module.h" - #include "msdos/pm_drvr/3c501.h" - #include "msdos/pm_drvr/3c503.h" - #include "msdos/pm_drvr/3c509.h" - #include "msdos/pm_drvr/3c59x.h" - #include "msdos/pm_drvr/3c515.h" - #include "msdos/pm_drvr/3c90x.h" - #include "msdos/pm_drvr/3c575_cb.h" - #include "msdos/pm_drvr/ne.h" - #include "msdos/pm_drvr/wd.h" - #include "msdos/pm_drvr/accton.h" - #include "msdos/pm_drvr/cs89x0.h" - #include "msdos/pm_drvr/rtl8139.h" - #include "msdos/pm_drvr/ne2k-pci.h" -#endif - -#include "pcap.h" -#include "pcap-dos.h" -#include "pcap-int.h" -#include "msdos/pktdrvr.h" - -#ifdef USE_NDIS2 -#include "msdos/ndis2.h" -#endif - -#include <arpa/inet.h> -#include <net/if.h> -#include <net/if_arp.h> -#include <net/if_ether.h> -#include <net/if_packe.h> -#include <tcp.h> - -#if defined(USE_32BIT_DRIVERS) - #define FLUSHK() do { _printk_safe = 1; _printk_flush(); } while (0) - #define NDIS_NEXT_DEV &rtl8139_dev - - static char *rx_pool = NULL; - static void init_32bit (void); - - static int pktq_init (struct rx_ringbuf *q, int size, int num, char *pool); - static int pktq_check (struct rx_ringbuf *q); - static int pktq_inc_out (struct rx_ringbuf *q); - static int pktq_in_index (struct rx_ringbuf *q) LOCKED_FUNC; - static void pktq_clear (struct rx_ringbuf *q) LOCKED_FUNC; - - static struct rx_elem *pktq_in_elem (struct rx_ringbuf *q) LOCKED_FUNC; - static struct rx_elem *pktq_out_elem (struct rx_ringbuf *q); - -#else - #define FLUSHK() ((void)0) - #define NDIS_NEXT_DEV NULL -#endif - -/* - * Internal variables/functions in Watt-32 - */ -extern WORD _pktdevclass; -extern BOOL _eth_is_init; -extern int _w32_dynamic_host; -extern int _watt_do_exit; -extern int _watt_is_init; -extern int _w32__bootp_on, _w32__dhcp_on, _w32__rarp_on, _w32__do_mask_req; -extern void (*_w32_usr_post_init) (void); -extern void (*_w32_print_hook)(); - -extern void dbug_write (const char *); /* Watt-32 lib, pcdbug.c */ -extern int pkt_get_mtu (void); - -static int ref_count = 0; - -static u_long mac_count = 0; -static u_long filter_count = 0; - -static volatile BOOL exc_occured = 0; - -static struct device *handle_to_device [20]; - -static int pcap_read_dos (pcap_t *p, int cnt, pcap_handler callback, - u_char *data); -static void pcap_close_dos (pcap_t *p); -static int pcap_stats_dos (pcap_t *p, struct pcap_stat *ps); -static int pcap_sendpacket_dos (pcap_t *p, const void *buf, size_t len); -static int pcap_setfilter_dos (pcap_t *p, struct bpf_program *fp); - -static int ndis_probe (struct device *dev); -static int pkt_probe (struct device *dev); - -static void close_driver (void); -static int init_watt32 (struct pcap *pcap, const char *dev_name, char *err_buf); -static int first_init (const char *name, char *ebuf, int promisc); - -static void watt32_recv_hook (u_char *dummy, const struct pcap_pkthdr *pcap, - const u_char *buf); - -/* - * These are the device we always support - */ -static struct device ndis_dev = { - "ndis", - "NDIS2 LanManager", - 0, - 0,0,0,0,0,0, - NDIS_NEXT_DEV, /* NULL or a 32-bit device */ - ndis_probe - }; - -static struct device pkt_dev = { - "pkt", - "Packet-Driver", - 0, - 0,0,0,0,0,0, - &ndis_dev, - pkt_probe - }; - -static struct device *get_device (int fd) -{ - if (fd <= 0 || fd >= sizeof(handle_to_device)/sizeof(handle_to_device[0])) - return (NULL); - return handle_to_device [fd-1]; -} - -/* - * Open MAC-driver with name 'device_name' for live capture of - * network packets. - */ -pcap_t *pcap_open_live (const char *device_name, int snaplen, int promisc, - int timeout_ms, char *errbuf) -{ - struct pcap *pcap; - - if (snaplen < ETH_MIN) - snaplen = ETH_MIN; - - if (snaplen > ETH_MAX) /* silently accept and truncate large MTUs */ - snaplen = ETH_MAX; - - pcap = calloc (sizeof(*pcap), 1); - if (!pcap) - { - strcpy (errbuf, "Not enough memory (pcap)"); - return (NULL); - } - - pcap->snapshot = max (ETH_MIN+8, snaplen); - pcap->linktype = DLT_EN10MB; /* !! */ - pcap->inter_packet_wait = timeout_ms; - pcap->close_op = pcap_close_dos; - pcap->read_op = pcap_read_dos; - pcap->stats_op = pcap_stats_dos; - pcap->inject_op = pcap_sendpacket_dos; - pcap->setfilter_op = pcap_setfilter_dos; - pcap->setdirection_op = NULL; /* Not implemented.*/ - pcap->fd = ++ref_count; - - if (pcap->fd == 1) /* first time we're called */ - { - if (!init_watt32(pcap, device_name, errbuf) || - !first_init(device_name, errbuf, promisc)) - { - free (pcap); - return (NULL); - } - atexit (close_driver); - } - else if (stricmp(active_dev->name,device_name)) - { - snprintf (errbuf, PCAP_ERRBUF_SIZE, - "Cannot use different devices simultaneously " - "(`%s' vs. `%s')", active_dev->name, device_name); - free (pcap); - pcap = NULL; - } - handle_to_device [pcap->fd-1] = active_dev; - return (pcap); -} - -/* - * Poll the receiver queue and call the pcap callback-handler - * with the packet. - */ -static int -pcap_read_one (pcap_t *p, pcap_handler callback, u_char *data) -{ - struct pcap_pkthdr pcap; - struct bpf_insn *fcode = p->fcode.bf_insns; - struct timeval now, expiry; - BYTE *rx_buf; - int rx_len = 0; - - if (p->inter_packet_wait > 0) - { - gettimeofday2 (&now, NULL); - expiry.tv_usec = now.tv_usec + 1000UL * p->inter_packet_wait; - expiry.tv_sec = now.tv_sec; - while (expiry.tv_usec >= 1000000L) - { - expiry.tv_usec -= 1000000L; - expiry.tv_sec++; - } - } - - while (!exc_occured) - { - volatile struct device *dev; /* might be reset by sig_handler */ - - dev = get_device (p->fd); - if (!dev) - break; - - PCAP_ASSERT (dev->copy_rx_buf || dev->peek_rx_buf); - FLUSHK(); - - /* If driver has a zero-copy receive facility, peek at the queue, - * filter it, do the callback and release the buffer. - */ - if (dev->peek_rx_buf) - { - PCAP_ASSERT (dev->release_rx_buf); - rx_len = (*dev->peek_rx_buf) (&rx_buf); - } - else - { - BYTE buf [ETH_MAX+100]; /* add some margin */ - rx_len = (*dev->copy_rx_buf) (buf, p->snapshot); - rx_buf = buf; - } - - if (rx_len > 0) /* got a packet */ - { - mac_count++; - - FLUSHK(); - - pcap.caplen = min (rx_len, p->snapshot); - pcap.len = rx_len; - - if (callback && - (!fcode || bpf_filter(fcode, rx_buf, pcap.len, pcap.caplen))) - { - filter_count++; - - /* Fix-me!! Should be time of arrival. Not time of - * capture. - */ - gettimeofday2 (&pcap.ts, NULL); - (*callback) (data, &pcap, rx_buf); - } - - if (dev->release_rx_buf) - (*dev->release_rx_buf) (rx_buf); - - if (pcap_pkt_debug > 0) - { - if (callback == watt32_recv_hook) - dbug_write ("pcap_recv_hook\n"); - else dbug_write ("pcap_read_op\n"); - } - FLUSHK(); - return (1); - } - - /* If not to wait for a packet or pcap_close() called from - * e.g. SIGINT handler, exit loop now. - */ - if (p->inter_packet_wait <= 0 || (volatile int)p->fd <= 0) - break; - - gettimeofday2 (&now, NULL); - - if (timercmp(&now, &expiry, >)) - break; - -#ifndef DJGPP - kbhit(); /* a real CPU hog */ -#endif - - if (p->wait_proc) - (*p->wait_proc)(); /* call yield func */ - } - - if (rx_len < 0) /* receive error */ - { - p->md.stat.ps_drop++; -#ifdef USE_32BIT_DRIVERS - if (pcap_pkt_debug > 1) - printk ("pkt-err %s\n", pktInfo.error); -#endif - return (-1); - } - return (0); -} - -static int -pcap_read_dos (pcap_t *p, int cnt, pcap_handler callback, u_char *data) -{ - int rc, num = 0; - - while (num <= cnt || (cnt < 0)) - { - if (p->fd <= 0) - return (-1); - rc = pcap_read_one (p, callback, data); - if (rc > 0) - num++; - if (rc < 0) - break; - _w32_os_yield(); /* allow SIGINT generation, yield to Win95/NT */ - } - return (num); -} - -/* - * Return network statistics - */ -static int pcap_stats_dos (pcap_t *p, struct pcap_stat *ps) -{ - struct net_device_stats *stats; - struct device *dev = p ? get_device(p->fd) : NULL; - - if (!dev) - { - strcpy (p->errbuf, "illegal pcap handle"); - return (-1); - } - - if (!dev->get_stats || (stats = (*dev->get_stats)(dev)) == NULL) - { - strcpy (p->errbuf, "device statistics not available"); - return (-1); - } - - FLUSHK(); - - p->md.stat.ps_recv = stats->rx_packets; - p->md.stat.ps_drop += stats->rx_missed_errors; - p->md.stat.ps_ifdrop = stats->rx_dropped + /* queue full */ - stats->rx_errors; /* HW errors */ - if (ps) - *ps = p->md.stat; - - return (0); -} - -/* - * Return detailed network/device statistics. - * May be called after 'dev->close' is called. - */ -int pcap_stats_ex (pcap_t *p, struct pcap_stat_ex *se) -{ - struct device *dev = p ? get_device (p->fd) : NULL; - - if (!dev || !dev->get_stats) - { - strlcpy (p->errbuf, "detailed device statistics not available", - PCAP_ERRBUF_SIZE); - return (-1); - } - - if (!strnicmp(dev->name,"pkt",3)) - { - strlcpy (p->errbuf, "pktdrvr doesn't have detailed statistics", - PCAP_ERRBUF_SIZE); - return (-1); - } - memcpy (se, (*dev->get_stats)(dev), sizeof(*se)); - return (0); -} - -/* - * Simply store the filter-code for the pcap_read_dos() callback - * Some day the filter-code could be handed down to the active - * device (pkt_rx1.s or 32-bit device interrupt handler). - */ -static int pcap_setfilter_dos (pcap_t *p, struct bpf_program *fp) -{ - if (!p) - return (-1); - p->fcode = *fp; - return (0); -} - -/* - * Return # of packets received in pcap_read_dos() - */ -u_long pcap_mac_packets (void) -{ - return (mac_count); -} - -/* - * Return # of packets passed through filter in pcap_read_dos() - */ -u_long pcap_filter_packets (void) -{ - return (filter_count); -} - -/* - * Close pcap device. Not called for offline captures. - */ -static void pcap_close_dos (pcap_t *p) -{ - if (p && !exc_occured) - { - if (pcap_stats(p,NULL) < 0) - p->md.stat.ps_drop = 0; - if (!get_device(p->fd)) - return; - - handle_to_device [p->fd-1] = NULL; - p->fd = 0; - if (ref_count > 0) - ref_count--; - if (ref_count > 0) - return; - } - close_driver(); -} - -/* - * Return the name of the 1st network interface, - * or NULL if none can be found. - */ -char *pcap_lookupdev (char *ebuf) -{ - struct device *dev; - -#ifdef USE_32BIT_DRIVERS - init_32bit(); -#endif - - for (dev = (struct device*)dev_base; dev; dev = dev->next) - { - PCAP_ASSERT (dev->probe); - - if ((*dev->probe)(dev)) - { - FLUSHK(); - probed_dev = (struct device*) dev; /* remember last probed device */ - return (char*) dev->name; - } - } - - if (ebuf) - strcpy (ebuf, "No driver found"); - return (NULL); -} - -/* - * Gets localnet & netmask from Watt-32. - */ -int pcap_lookupnet (const char *device, bpf_u_int32 *localnet, - bpf_u_int32 *netmask, char *errbuf) -{ - if (!_watt_is_init) - { - strcpy (errbuf, "pcap_open_offline() or pcap_open_live() must be " - "called first"); - return (-1); - } - - *netmask = _w32_sin_mask; - *localnet = my_ip_addr & *netmask; - if (*localnet == 0) - { - if (IN_CLASSA(*netmask)) - *localnet = IN_CLASSA_NET; - else if (IN_CLASSB(*netmask)) - *localnet = IN_CLASSB_NET; - else if (IN_CLASSC(*netmask)) - *localnet = IN_CLASSC_NET; - else - { - sprintf (errbuf, "inet class for 0x%lx unknown", *netmask); - return (-1); - } - } - ARGSUSED (device); - return (0); -} - -/* - * Get a list of all interfaces that are present and that we probe okay. - * Returns -1 on error, 0 otherwise. - * The list, as returned through "alldevsp", may be null if no interfaces - * were up and could be opened. - */ -int pcap_findalldevs (pcap_if_t **alldevsp, char *errbuf) -{ - struct device *dev; - struct sockaddr_ll sa_ll_1, sa_ll_2; - struct sockaddr *addr, *netmask, *broadaddr, *dstaddr; - pcap_if_t *devlist = NULL; - int ret = 0; - size_t addr_size = sizeof(struct sockaddr_ll); - - for (dev = (struct device*)dev_base; dev; dev = dev->next) - { - PCAP_ASSERT (dev->probe); - - if (!(*dev->probe)(dev)) - continue; - - PCAP_ASSERT (dev->close); /* set by probe routine */ - FLUSHK(); - (*dev->close) (dev); - - memset (&sa_ll_1, 0, sizeof(sa_ll_1)); - memset (&sa_ll_2, 0, sizeof(sa_ll_2)); - sa_ll_1.sll_family = AF_PACKET; - sa_ll_2.sll_family = AF_PACKET; - - addr = (struct sockaddr*) &sa_ll_1; - netmask = (struct sockaddr*) &sa_ll_1; - dstaddr = (struct sockaddr*) &sa_ll_1; - broadaddr = (struct sockaddr*) &sa_ll_2; - memset (&sa_ll_2.sll_addr, 0xFF, sizeof(sa_ll_2.sll_addr)); - - if (pcap_add_if(&devlist, dev->name, dev->flags, - dev->long_name, errbuf) < 0) - { - ret = -1; - break; - } - if (add_addr_to_iflist(&devlist,dev->name, dev->flags, addr, addr_size, - netmask, addr_size, broadaddr, addr_size, - dstaddr, addr_size, errbuf) < 0) - { - ret = -1; - break; - } - } - - if (devlist && ret < 0) - { - pcap_freealldevs (devlist); - devlist = NULL; - } - else - if (!devlist) - strcpy (errbuf, "No drivers found"); - - *alldevsp = devlist; - return (ret); -} - -/* - * pcap_assert() is mainly used for debugging - */ -void pcap_assert (const char *what, const char *file, unsigned line) -{ - FLUSHK(); - fprintf (stderr, "%s (%u): Assertion \"%s\" failed\n", - file, line, what); - close_driver(); - _exit (-1); -} - -/* - * For pcap_offline_read(): wait and yield between printing packets - * to simulate the pace packets where actually recorded. - */ -void pcap_set_wait (pcap_t *p, void (*yield)(void), int wait) -{ - if (p) - { - p->wait_proc = yield; - p->inter_packet_wait = wait; - } -} - -/* - * Initialise a named network device. - */ -static struct device * -open_driver (const char *dev_name, char *ebuf, int promisc) -{ - struct device *dev; - - for (dev = (struct device*)dev_base; dev; dev = dev->next) - { - PCAP_ASSERT (dev->name); - - if (strcmp (dev_name,dev->name)) - continue; - - if (!probed_dev) /* user didn't call pcap_lookupdev() first */ - { - PCAP_ASSERT (dev->probe); - - if (!(*dev->probe)(dev)) /* call the xx_probe() function */ - { - sprintf (ebuf, "failed to detect device `%s'", dev_name); - return (NULL); - } - probed_dev = dev; /* device is probed okay and may be used */ - } - else if (dev != probed_dev) - { - goto not_probed; - } - - FLUSHK(); - - /* Select what traffic to receive - */ - if (promisc) - dev->flags |= (IFF_ALLMULTI | IFF_PROMISC); - else dev->flags &= ~(IFF_ALLMULTI | IFF_PROMISC); - - PCAP_ASSERT (dev->open); - - if (!(*dev->open)(dev)) - { - sprintf (ebuf, "failed to activate device `%s'", dev_name); - if (pktInfo.error && !strncmp(dev->name,"pkt",3)) - { - strcat (ebuf, ": "); - strcat (ebuf, pktInfo.error); - } - return (NULL); - } - - /* Some devices need this to operate in promiscous mode - */ - if (promisc && dev->set_multicast_list) - (*dev->set_multicast_list) (dev); - - active_dev = dev; /* remember our active device */ - break; - } - - /* 'dev_name' not matched in 'dev_base' list. - */ - if (!dev) - { - sprintf (ebuf, "device `%s' not supported", dev_name); - return (NULL); - } - -not_probed: - if (!probed_dev) - { - sprintf (ebuf, "device `%s' not probed", dev_name); - return (NULL); - } - return (dev); -} - -/* - * Deinitialise MAC driver. - * Set receive mode back to default mode. - */ -static void close_driver (void) -{ - /* !!todo: loop over all 'handle_to_device[]' ? */ - struct device *dev = active_dev; - - if (dev && dev->close) - { - (*dev->close) (dev); - FLUSHK(); - } - - active_dev = NULL; - -#ifdef USE_32BIT_DRIVERS - if (rx_pool) - { - k_free (rx_pool); - rx_pool = NULL; - } - if (dev) - pcibios_exit(); -#endif -} - - -#ifdef __DJGPP__ -static void setup_signals (void (*handler)(int)) -{ - signal (SIGSEGV,handler); - signal (SIGILL, handler); - signal (SIGFPE, handler); -} - -static void exc_handler (int sig) -{ -#ifdef USE_32BIT_DRIVERS - if (active_dev->irq > 0) /* excludes IRQ 0 */ - { - disable_irq (active_dev->irq); - irq_eoi_cmd (active_dev->irq); - _printk_safe = 1; - } -#endif - - switch (sig) - { - case SIGSEGV: - fputs ("Catching SIGSEGV.\n", stderr); - break; - case SIGILL: - fputs ("Catching SIGILL.\n", stderr); - break; - case SIGFPE: - _fpreset(); - fputs ("Catching SIGFPE.\n", stderr); - break; - default: - fprintf (stderr, "Catching signal %d.\n", sig); - } - exc_occured = 1; - pcap_close_dos (NULL); -} -#endif /* __DJGPP__ */ - - -/* - * Open the pcap device for the first client calling pcap_open_live() - */ -static int first_init (const char *name, char *ebuf, int promisc) -{ - struct device *dev; - -#ifdef USE_32BIT_DRIVERS - rx_pool = k_calloc (RECEIVE_BUF_SIZE, RECEIVE_QUEUE_SIZE); - if (!rx_pool) - { - strcpy (ebuf, "Not enough memory (Rx pool)"); - return (0); - } -#endif - -#ifdef __DJGPP__ - setup_signals (exc_handler); -#endif - -#ifdef USE_32BIT_DRIVERS - init_32bit(); -#endif - - dev = open_driver (name, ebuf, promisc); - if (!dev) - { -#ifdef USE_32BIT_DRIVERS - k_free (rx_pool); - rx_pool = NULL; -#endif - -#ifdef __DJGPP__ - setup_signals (SIG_DFL); -#endif - return (0); - } - -#ifdef USE_32BIT_DRIVERS - /* - * If driver is NOT a 16-bit "pkt/ndis" driver (having a 'copy_rx_buf' - * set in it's probe handler), initialise near-memory ring-buffer for - * the 32-bit device. - */ - if (dev->copy_rx_buf == NULL) - { - dev->get_rx_buf = get_rxbuf; - dev->peek_rx_buf = peek_rxbuf; - dev->release_rx_buf = release_rxbuf; - pktq_init (&dev->queue, RECEIVE_BUF_SIZE, RECEIVE_QUEUE_SIZE, rx_pool); - } -#endif - return (1); -} - -#ifdef USE_32BIT_DRIVERS -static void init_32bit (void) -{ - static int init_pci = 0; - - if (!_printk_file) - _printk_init (64*1024, NULL); /* calls atexit(printk_exit) */ - - if (!init_pci) - (void)pci_init(); /* init BIOS32+PCI interface */ - init_pci = 1; -} -#endif - - -/* - * Hook functions for using Watt-32 together with pcap - */ -static char rxbuf [ETH_MAX+100]; /* rx-buffer with some margin */ -static WORD etype; -static pcap_t pcap_save; - -static void watt32_recv_hook (u_char *dummy, const struct pcap_pkthdr *pcap, - const u_char *buf) -{ - /* Fix me: assumes Ethernet II only */ - struct ether_header *ep = (struct ether_header*) buf; - - memcpy (rxbuf, buf, pcap->caplen); - etype = ep->ether_type; - ARGSUSED (dummy); -} - -#if (WATTCP_VER >= 0x0224) -/* - * This function is used by Watt-32 to poll for a packet. - * i.e. it's set to bypass _eth_arrived() - */ -static void *pcap_recv_hook (WORD *type) -{ - int len = pcap_read_dos (&pcap_save, 1, watt32_recv_hook, NULL); - - if (len < 0) - return (NULL); - - *type = etype; - return (void*) &rxbuf; -} - -/* - * This function is called by Watt-32 (via _eth_xmit_hook). - * If dbug_init() was called, we should trace packets sent. - */ -static int pcap_xmit_hook (const void *buf, unsigned len) -{ - int rc = 0; - - if (pcap_pkt_debug > 0) - dbug_write ("pcap_xmit_hook: "); - - if (active_dev && active_dev->xmit) - if ((*active_dev->xmit) (active_dev, buf, len) > 0) - rc = len; - - if (pcap_pkt_debug > 0) - dbug_write (rc ? "ok\n" : "fail\n"); - return (rc); -} -#endif - -static int pcap_sendpacket_dos (pcap_t *p, const void *buf, size_t len) -{ - struct device *dev = p ? get_device(p->fd) : NULL; - - if (!dev || !dev->xmit) - return (-1); - return (*dev->xmit) (dev, buf, len); -} - -/* - * This function is called by Watt-32 in tcp_post_init(). - * We should prevent Watt-32 from using BOOTP/DHCP/RARP etc. - */ -static void (*prev_post_hook) (void); - -static void pcap_init_hook (void) -{ - _w32__bootp_on = _w32__dhcp_on = _w32__rarp_on = 0; - _w32__do_mask_req = 0; - _w32_dynamic_host = 0; - if (prev_post_hook) - (*prev_post_hook)(); -} - -/* - * Supress PRINT message from Watt-32's sock_init() - */ -static void null_print (void) {} - -/* - * To use features of Watt-32 (netdb functions and socket etc.) - * we must call sock_init(). But we set various hooks to prevent - * using normal PKTDRVR functions in pcpkt.c. This should hopefully - * make Watt-32 and pcap co-operate. - */ -static int init_watt32 (struct pcap *pcap, const char *dev_name, char *err_buf) -{ - char *env; - int rc, MTU, has_ip_addr; - int using_pktdrv = 1; - - /* If user called sock_init() first, we need to reinit in - * order to open debug/trace-file properly - */ - if (_watt_is_init) - sock_exit(); - - env = getenv ("PCAP_DEBUG"); - if (env && atoi(env) > 0 && - pcap_pkt_debug < 0) /* if not already set */ - { - dbug_init(); - pcap_pkt_debug = atoi (env); - } - - _watt_do_exit = 0; /* prevent sock_init() calling exit() */ - prev_post_hook = _w32_usr_post_init; - _w32_usr_post_init = pcap_init_hook; - _w32_print_hook = null_print; - - if (dev_name && strncmp(dev_name,"pkt",3)) - using_pktdrv = FALSE; - - rc = sock_init(); - has_ip_addr = (rc != 8); /* IP-address assignment failed */ - - /* if pcap is using a 32-bit driver w/o a pktdrvr loaded, we - * just pretend Watt-32 is initialised okay. - * - * !! fix-me: The Watt-32 config isn't done if no pktdrvr - * was found. In that case my_ip_addr + sin_mask - * have default values. Should be taken from another - * ini-file/environment in any case (ref. tcpdump.ini) - */ - _watt_is_init = 1; - - if (!using_pktdrv || !has_ip_addr) /* for now .... */ - { - static const char myip[] = "192.168.0.1"; - static const char mask[] = "255.255.255.0"; - - printf ("Just guessing, using IP %s and netmask %s\n", myip, mask); - my_ip_addr = aton (myip); - _w32_sin_mask = aton (mask); - } - else if (rc && using_pktdrv) - { - sprintf (err_buf, "sock_init() failed, code %d", rc); - return (0); - } - - /* Set recv-hook for peeking in _eth_arrived(). - */ -#if (WATTCP_VER >= 0x0224) - _eth_recv_hook = pcap_recv_hook; - _eth_xmit_hook = pcap_xmit_hook; -#endif - - /* Free the pkt-drvr handle allocated in pkt_init(). - * The above hooks should thus use the handle reopened in open_driver() - */ - if (using_pktdrv) - { - _eth_release(); -/* _eth_is_init = 1; */ /* hack to get Rx/Tx-hooks in Watt-32 working */ - } - - memcpy (&pcap_save, pcap, sizeof(pcap_save)); - MTU = pkt_get_mtu(); - pcap_save.fcode.bf_insns = NULL; - pcap_save.linktype = _eth_get_hwtype (NULL, NULL); - pcap_save.snapshot = MTU > 0 ? MTU : ETH_MAX; /* assume 1514 */ - -#if 1 - /* prevent use of resolve() and resolve_ip() - */ - last_nameserver = 0; -#endif - return (1); -} - -int EISA_bus = 0; /* Where is natural place for this? */ - -/* - * Application config hooks to set various driver parameters. - */ - -static struct config_table debug_tab[] = { - { "PKT.DEBUG", ARG_ATOI, &pcap_pkt_debug }, - { "PKT.VECTOR", ARG_ATOX_W, NULL }, - { "NDIS.DEBUG", ARG_ATOI, NULL }, -#ifdef USE_32BIT_DRIVERS - { "3C503.DEBUG", ARG_ATOI, &ei_debug }, - { "3C503.IO_BASE", ARG_ATOX_W, &el2_dev.base_addr }, - { "3C503.MEMORY", ARG_ATOX_W, &el2_dev.mem_start }, - { "3C503.IRQ", ARG_ATOI, &el2_dev.irq }, - { "3C505.DEBUG", ARG_ATOI, NULL }, - { "3C505.BASE", ARG_ATOX_W, NULL }, - { "3C507.DEBUG", ARG_ATOI, NULL }, - { "3C509.DEBUG", ARG_ATOI, &el3_debug }, - { "3C509.ILOOP", ARG_ATOI, &el3_max_loop }, - { "3C529.DEBUG", ARG_ATOI, NULL }, - { "3C575.DEBUG", ARG_ATOI, &debug_3c575 }, - { "3C59X.DEBUG", ARG_ATOI, &vortex_debug }, - { "3C59X.IFACE0", ARG_ATOI, &vortex_options[0] }, - { "3C59X.IFACE1", ARG_ATOI, &vortex_options[1] }, - { "3C59X.IFACE2", ARG_ATOI, &vortex_options[2] }, - { "3C59X.IFACE3", ARG_ATOI, &vortex_options[3] }, - { "3C90X.DEBUG", ARG_ATOX_W, &tc90xbc_debug }, - { "ACCT.DEBUG", ARG_ATOI, ðpk_debug }, - { "CS89.DEBUG", ARG_ATOI, &cs89_debug }, - { "RTL8139.DEBUG", ARG_ATOI, &rtl8139_debug }, - /* { "RTL8139.FDUPLEX", ARG_ATOI, &rtl8139_options }, */ - { "SMC.DEBUG", ARG_ATOI, &ei_debug }, - /* { "E100.DEBUG", ARG_ATOI, &e100_debug }, */ - { "PCI.DEBUG", ARG_ATOI, &pci_debug }, - { "BIOS32.DEBUG", ARG_ATOI, &bios32_debug }, - { "IRQ.DEBUG", ARG_ATOI, &irq_debug }, - { "TIMER.IRQ", ARG_ATOI, &timer_irq }, -#endif - { NULL } - }; - -/* - * pcap_config_hook() is an extension to application's config - * handling. Uses Watt-32's config-table function. - */ -int pcap_config_hook (const char *name, const char *value) -{ - return parse_config_table (debug_tab, NULL, name, value); -} - -/* - * Linked list of supported devices - */ -struct device *active_dev = NULL; /* the device we have opened */ -struct device *probed_dev = NULL; /* the device we have probed */ -const struct device *dev_base = &pkt_dev; /* list of network devices */ - -/* - * PKTDRVR device functions - */ -int pcap_pkt_debug = -1; - -static void pkt_close (struct device *dev) -{ - BOOL okay = PktExitDriver(); - - if (pcap_pkt_debug > 1) - fprintf (stderr, "pkt_close(): %d\n", okay); - - if (dev->priv) - free (dev->priv); - dev->priv = NULL; -} - -static int pkt_open (struct device *dev) -{ - PKT_RX_MODE mode; - - if (dev->flags & IFF_PROMISC) - mode = PDRX_ALL_PACKETS; - else mode = PDRX_BROADCAST; - - if (!PktInitDriver(mode)) - return (0); - - PktResetStatistics (pktInfo.handle); - PktQueueBusy (FALSE); - return (1); -} - -static int pkt_xmit (struct device *dev, const void *buf, int len) -{ - struct net_device_stats *stats = (struct net_device_stats*) dev->priv; - - if (pcap_pkt_debug > 0) - dbug_write ("pcap_xmit\n"); - - if (!PktTransmit(buf,len)) - { - stats->tx_errors++; - return (0); - } - return (len); -} - -static void *pkt_stats (struct device *dev) -{ - struct net_device_stats *stats = (struct net_device_stats*) dev->priv; - - if (!stats || !PktSessStatistics(pktInfo.handle)) - return (NULL); - - stats->rx_packets = pktStat.inPackets; - stats->rx_errors = pktStat.lost; - stats->rx_missed_errors = PktRxDropped(); - return (stats); -} - -static int pkt_probe (struct device *dev) -{ - if (!PktSearchDriver()) - return (0); - - dev->open = pkt_open; - dev->xmit = pkt_xmit; - dev->close = pkt_close; - dev->get_stats = pkt_stats; - dev->copy_rx_buf = PktReceive; /* farmem peek and copy routine */ - dev->get_rx_buf = NULL; - dev->peek_rx_buf = NULL; - dev->release_rx_buf = NULL; - dev->priv = calloc (sizeof(struct net_device_stats), 1); - if (!dev->priv) - return (0); - return (1); -} - -/* - * NDIS device functions - */ -static void ndis_close (struct device *dev) -{ -#ifdef USE_NDIS2 - NdisShutdown(); -#endif - ARGSUSED (dev); -} - -static int ndis_open (struct device *dev) -{ - int promis = (dev->flags & IFF_PROMISC); - -#ifdef USE_NDIS2 - if (!NdisInit(promis)) - return (0); - return (1); -#else - ARGSUSED (promis); - return (0); -#endif -} - -static void *ndis_stats (struct device *dev) -{ - static struct net_device_stats stats; - - /* to-do */ - ARGSUSED (dev); - return (&stats); -} - -static int ndis_probe (struct device *dev) -{ -#ifdef USE_NDIS2 - if (!NdisOpen()) - return (0); -#endif - - dev->open = ndis_open; - dev->xmit = NULL; - dev->close = ndis_close; - dev->get_stats = ndis_stats; - dev->copy_rx_buf = NULL; /* to-do */ - dev->get_rx_buf = NULL; /* upcall is from rmode driver */ - dev->peek_rx_buf = NULL; - dev->release_rx_buf = NULL; - return (0); -} - -/* - * Search & probe for supported 32-bit (pmode) pcap devices - */ -#if defined(USE_32BIT_DRIVERS) - -struct device el2_dev LOCKED_VAR = { - "3c503", - "EtherLink II", - 0, - 0,0,0,0,0,0, - NULL, - el2_probe - }; - -struct device el3_dev LOCKED_VAR = { - "3c509", - "EtherLink III", - 0, - 0,0,0,0,0,0, - &el2_dev, - el3_probe - }; - -struct device tc515_dev LOCKED_VAR = { - "3c515", - "EtherLink PCI", - 0, - 0,0,0,0,0,0, - &el3_dev, - tc515_probe - }; - -struct device tc59_dev LOCKED_VAR = { - "3c59x", - "EtherLink PCI", - 0, - 0,0,0,0,0,0, - &tc515_dev, - tc59x_probe - }; - -struct device tc90xbc_dev LOCKED_VAR = { - "3c90x", - "EtherLink 90X", - 0, - 0,0,0,0,0,0, - &tc59_dev, - tc90xbc_probe - }; - -struct device wd_dev LOCKED_VAR = { - "wd", - "Westen Digital", - 0, - 0,0,0,0,0,0, - &tc90xbc_dev, - wd_probe - }; - -struct device ne_dev LOCKED_VAR = { - "ne", - "NEx000", - 0, - 0,0,0,0,0,0, - &wd_dev, - ne_probe - }; - -struct device acct_dev LOCKED_VAR = { - "acct", - "Accton EtherPocket", - 0, - 0,0,0,0,0,0, - &ne_dev, - ethpk_probe - }; - -struct device cs89_dev LOCKED_VAR = { - "cs89", - "Crystal Semiconductor", - 0, - 0,0,0,0,0,0, - &acct_dev, - cs89x0_probe - }; - -struct device rtl8139_dev LOCKED_VAR = { - "rtl8139", - "RealTek PCI", - 0, - 0,0,0,0,0,0, - &cs89_dev, - rtl8139_probe /* dev->probe routine */ - }; - -/* - * Dequeue routine is called by polling. - * NOTE: the queue-element is not copied, only a pointer is - * returned at '*buf' - */ -int peek_rxbuf (BYTE **buf) -{ - struct rx_elem *tail, *head; - - PCAP_ASSERT (pktq_check (&active_dev->queue)); - - DISABLE(); - tail = pktq_out_elem (&active_dev->queue); - head = pktq_in_elem (&active_dev->queue); - ENABLE(); - - if (head != tail) - { - PCAP_ASSERT (tail->size < active_dev->queue.elem_size-4-2); - - *buf = &tail->data[0]; - return (tail->size); - } - *buf = NULL; - return (0); -} - -/* - * Release buffer we peeked at above. - */ -int release_rxbuf (BYTE *buf) -{ -#ifndef NDEBUG - struct rx_elem *tail = pktq_out_elem (&active_dev->queue); - - PCAP_ASSERT (&tail->data[0] == buf); -#else - ARGSUSED (buf); -#endif - pktq_inc_out (&active_dev->queue); - return (1); -} - -/* - * get_rxbuf() routine (in locked code) is called from IRQ handler - * to request a buffer. Interrupts are disabled and we have a 32kB stack. - */ -BYTE *get_rxbuf (int len) -{ - int idx; - - if (len < ETH_MIN || len > ETH_MAX) - return (NULL); - - idx = pktq_in_index (&active_dev->queue); - -#ifdef DEBUG - { - static int fan_idx LOCKED_VAR = 0; - writew ("-\\|/"[fan_idx++] | (15 << 8), /* white on black colour */ - 0xB8000 + 2*79); /* upper-right corner, 80-col colour screen */ - fan_idx &= 3; - } -/* writew (idx + '0' + 0x0F00, 0xB8000 + 2*78); */ -#endif - - if (idx != active_dev->queue.out_index) - { - struct rx_elem *head = pktq_in_elem (&active_dev->queue); - - head->size = len; - active_dev->queue.in_index = idx; - return (&head->data[0]); - } - - /* !!to-do: drop 25% of the oldest element - */ - pktq_clear (&active_dev->queue); - return (NULL); -} - -/* - * Simple ring-buffer queue handler for reception of packets - * from network driver. - */ -#define PKTQ_MARKER 0xDEADBEEF - -static int pktq_check (struct rx_ringbuf *q) -{ -#ifndef NDEBUG - int i; - char *buf; -#endif - - if (!q || !q->num_elem || !q->buf_start) - return (0); - -#ifndef NDEBUG - buf = q->buf_start; - - for (i = 0; i < q->num_elem; i++) - { - buf += q->elem_size; - if (*(DWORD*)(buf - sizeof(DWORD)) != PKTQ_MARKER) - return (0); - } -#endif - return (1); -} - -static int pktq_init (struct rx_ringbuf *q, int size, int num, char *pool) -{ - int i; - - q->elem_size = size; - q->num_elem = num; - q->buf_start = pool; - q->in_index = 0; - q->out_index = 0; - - PCAP_ASSERT (size >= sizeof(struct rx_elem) + sizeof(DWORD)); - PCAP_ASSERT (num); - PCAP_ASSERT (pool); - - for (i = 0; i < num; i++) - { -#if 0 - struct rx_elem *elem = (struct rx_elem*) pool; - - /* assert dword aligned elements - */ - PCAP_ASSERT (((unsigned)(&elem->data[0]) & 3) == 0); -#endif - pool += size; - *(DWORD*) (pool - sizeof(DWORD)) = PKTQ_MARKER; - } - return (1); -} - -/* - * Increment the queue 'out_index' (tail). - * Check for wraps. - */ -static int pktq_inc_out (struct rx_ringbuf *q) -{ - q->out_index++; - if (q->out_index >= q->num_elem) - q->out_index = 0; - return (q->out_index); -} - -/* - * Return the queue's next 'in_index' (head). - * Check for wraps. - */ -static int pktq_in_index (struct rx_ringbuf *q) -{ - volatile int index = q->in_index + 1; - - if (index >= q->num_elem) - index = 0; - return (index); -} - -/* - * Return the queue's head-buffer. - */ -static struct rx_elem *pktq_in_elem (struct rx_ringbuf *q) -{ - return (struct rx_elem*) (q->buf_start + (q->elem_size * q->in_index)); -} - -/* - * Return the queue's tail-buffer. - */ -static struct rx_elem *pktq_out_elem (struct rx_ringbuf *q) -{ - return (struct rx_elem*) (q->buf_start + (q->elem_size * q->out_index)); -} - -/* - * Clear the queue ring-buffer by setting head=tail. - */ -static void pktq_clear (struct rx_ringbuf *q) -{ - q->in_index = q->out_index; -} - -/* - * Symbols that must be linkable for "gcc -O0" - */ -#undef __IOPORT_H -#undef __DMA_H - -#define extern -#define __inline__ - -#include "msdos/pm_drvr/ioport.h" -#include "msdos/pm_drvr/dma.h" - -#endif /* USE_32BIT_DRIVERS */ - diff --git a/contrib/libpcap/pcap-dos.h b/contrib/libpcap/pcap-dos.h deleted file mode 100644 index c9737ba..0000000 --- a/contrib/libpcap/pcap-dos.h +++ /dev/null @@ -1,227 +0,0 @@ -/* - * Internal details for libpcap on DOS. - * 32-bit targets: djgpp, Pharlap or DOS4GW. - * - * @(#) $Header: /tcpdump/master/libpcap/pcap-dos.h,v 1.1 2004/12/18 08:52:10 guy Exp $ (LBL) - */ - -#ifndef __PCAP_DOS_H -#define __PCAP_DOS_H - -#ifdef __DJGPP__ -#include <pc.h> /* simple non-conio kbhit */ -#else -#include <conio.h> -#endif - -typedef int BOOL; -typedef unsigned char BYTE; -typedef unsigned short WORD; -typedef unsigned long DWORD; -typedef BYTE ETHER[6]; - -#define ETH_ALEN sizeof(ETHER) /* Ether address length */ -#define ETH_HLEN (2*ETH_ALEN+2) /* Ether header length */ -#define ETH_MTU 1500 -#define ETH_MIN 60 -#define ETH_MAX (ETH_MTU+ETH_HLEN) - -#ifndef TRUE - #define TRUE 1 - #define FALSE 0 -#endif - -#define PHARLAP 1 -#define DJGPP 2 -#define DOS4GW 4 - -#ifdef __DJGPP__ - #undef DOSX - #define DOSX DJGPP -#endif - -#ifdef __WATCOMC__ - #undef DOSX - #define DOSX DOS4GW -#endif - -#ifdef __HIGHC__ - #include <pharlap.h> - #undef DOSX - #define DOSX PHARLAP - #define inline -#else - typedef unsigned int UINT; -#endif - - -#if defined(__GNUC__) || defined(__HIGHC__) - typedef unsigned long long uint64; - typedef unsigned long long QWORD; -#endif - -#if defined(__WATCOMC__) - typedef unsigned __int64 uint64; - typedef unsigned __int64 QWORD; -#endif - -#define ARGSUSED(x) (void) x - -#if defined (__SMALL__) || defined(__LARGE__) - #define DOSX 0 - -#elif !defined(DOSX) - #error DOSX not defined; 1 = PharLap, 2 = djgpp, 4 = DOS4GW -#endif - -#ifdef __HIGHC__ -#define min(a,b) _min(a,b) -#define max(a,b) _max(a,b) -#endif - -#ifndef min -#define min(a,b) ((a) < (b) ? (a) : (b)) -#endif - -#ifndef max -#define max(a,b) ((a) < (b) ? (b) : (a)) -#endif - -#if !defined(_U_) && defined(__GNUC__) -#define _U_ __attribute__((unused)) -#endif - -#ifndef _U_ -#define _U_ -#endif - -#if defined(USE_32BIT_DRIVERS) - #include "msdos/pm_drvr/lock.h" - - #ifndef RECEIVE_QUEUE_SIZE - #define RECEIVE_QUEUE_SIZE 60 - #endif - - #ifndef RECEIVE_BUF_SIZE - #define RECEIVE_BUF_SIZE (ETH_MAX+20) - #endif - - extern struct device el2_dev LOCKED_VAR; /* 3Com EtherLink II */ - extern struct device el3_dev LOCKED_VAR; /* EtherLink III */ - extern struct device tc59_dev LOCKED_VAR; /* 3Com Vortex Card (?) */ - extern struct device tc515_dev LOCKED_VAR; - extern struct device tc90x_dev LOCKED_VAR; - extern struct device tc90bcx_dev LOCKED_VAR; - extern struct device wd_dev LOCKED_VAR; - extern struct device ne_dev LOCKED_VAR; - extern struct device acct_dev LOCKED_VAR; - extern struct device cs89_dev LOCKED_VAR; - extern struct device rtl8139_dev LOCKED_VAR; - - struct rx_ringbuf { - volatile int in_index; /* queue index head */ - int out_index; /* queue index tail */ - int elem_size; /* size of each element */ - int num_elem; /* number of elements */ - char *buf_start; /* start of buffer pool */ - }; - - struct rx_elem { - DWORD size; /* size copied to this element */ - BYTE data[ETH_MAX+10]; /* add some margin. data[0] should be */ - }; /* dword aligned */ - - extern BYTE *get_rxbuf (int len) LOCKED_FUNC; - extern int peek_rxbuf (BYTE **buf); - extern int release_rxbuf (BYTE *buf); - -#else - #define LOCKED_VAR - #define LOCKED_FUNC - - struct device { - const char *name; - const char *long_name; - DWORD base_addr; /* device I/O address */ - int irq; /* device IRQ number */ - int dma; /* DMA channel */ - DWORD mem_start; /* shared mem start */ - DWORD mem_end; /* shared mem end */ - DWORD rmem_start; /* shmem "recv" start */ - DWORD rmem_end; /* shared "recv" end */ - - struct device *next; /* next device in list */ - - /* interface service routines */ - int (*probe)(struct device *dev); - int (*open) (struct device *dev); - void (*close)(struct device *dev); - int (*xmit) (struct device *dev, const void *buf, int len); - void *(*get_stats)(struct device *dev); - void (*set_multicast_list)(struct device *dev); - - /* driver-to-pcap receive buffer routines */ - int (*copy_rx_buf) (BYTE *buf, int max); /* rx-copy (pktdrvr only) */ - BYTE *(*get_rx_buf) (int len); /* rx-buf fetch/enqueue */ - int (*peek_rx_buf) (BYTE **buf); /* rx-non-copy at queue */ - int (*release_rx_buf) (BYTE *buf); /* release after peek */ - - WORD flags; /* Low-level status flags. */ - void *priv; /* private data */ - }; - - /* - * Network device statistics - */ - typedef struct net_device_stats { - DWORD rx_packets; /* total packets received */ - DWORD tx_packets; /* total packets transmitted */ - DWORD rx_bytes; /* total bytes received */ - DWORD tx_bytes; /* total bytes transmitted */ - DWORD rx_errors; /* bad packets received */ - DWORD tx_errors; /* packet transmit problems */ - DWORD rx_dropped; /* no space in Rx buffers */ - DWORD tx_dropped; /* no space available for Tx */ - DWORD multicast; /* multicast packets received */ - - /* detailed rx_errors: */ - DWORD rx_length_errors; - DWORD rx_over_errors; /* recv'r overrun error */ - DWORD rx_osize_errors; /* recv'r over-size error */ - DWORD rx_crc_errors; /* recv'd pkt with crc error */ - DWORD rx_frame_errors; /* recv'd frame alignment error */ - DWORD rx_fifo_errors; /* recv'r fifo overrun */ - DWORD rx_missed_errors; /* recv'r missed packet */ - - /* detailed tx_errors */ - DWORD tx_aborted_errors; - DWORD tx_carrier_errors; - DWORD tx_fifo_errors; - DWORD tx_heartbeat_errors; - DWORD tx_window_errors; - DWORD tx_collisions; - DWORD tx_jabbers; - } NET_STATS; -#endif - -extern struct device *active_dev LOCKED_VAR; -extern const struct device *dev_base LOCKED_VAR; -extern struct device *probed_dev; - -extern int pcap_pkt_debug; - -extern void _w32_os_yield (void); /* Watt-32's misc.c */ - -#ifdef NDEBUG - #define PCAP_ASSERT(x) ((void)0) - -#else - void pcap_assert (const char *what, const char *file, unsigned line); - - #define PCAP_ASSERT(x) do { \ - if (!(x)) \ - pcap_assert (#x, __FILE__, __LINE__); \ - } while (0) -#endif - -#endif /* __PCAP_DOS_H */ diff --git a/contrib/libpcap/pcap-enet.c b/contrib/libpcap/pcap-enet.c deleted file mode 100644 index a484207..0000000 --- a/contrib/libpcap/pcap-enet.c +++ /dev/null @@ -1,235 +0,0 @@ -/* - * Stanford Enetfilter subroutines for tcpdump - * - * Based on the MERIT NNstat etherifrt.c and the Ultrix pcap-pf.c - * subroutines. - * - * Rayan Zachariassen, CA*Net - */ -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/pcap-enet.c,v 1.8 2003/11/15 23:24:02 guy Exp $"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <sys/types.h> -#include <sys/time.h> -#include <sys/file.h> -#include <sys/ioctl.h> -#include <sys/socket.h> - -#include <net/if.h> -#include <pcap-bpf.h> -#include <net/enet.h> - -#include <netinet/in.h> -#include <netinet/if_ether.h> - -#include <stdio.h> -#include <errno.h> - -#include "interface.h" - -struct packet_header { -#ifdef IBMRTPC - struct LengthWords length; - struct tap_header tap; -#endif /* IBMRTPC */ - u_char packet[8] -}; - -extern int errno; - -#define BUFSPACE (4*1024) - -/* Forwards */ -static void efReadError(int, char *); - -void -readloop(int cnt, int if_fd, struct bpf_program *fp, printfunc printit) -{ -#ifdef IBMRTPC - register struct packet_header *ph; - register u_char *bp; - register int inc; -#else /* !IBMRTPC */ - static struct timeval tv = { 0 }; -#endif /* IBMRTPC */ - register int cc, caplen; - register struct bpf_insn *fcode = fp->bf_insns; - union { - struct packet_header hdr; - u_char p[BUFSPACE]; - u_short s; - } buf; - - while (1) { - if ((cc = read(if_fd, (char *)buf.p, sizeof(buf))) < 0) - efReadError(if_fd, "reader"); - -#ifdef IBMRTPC - /* - * Loop through each packet. - */ - bp = buf.p; - while (cc > 0) { - ph = (struct packet_header *)bp; - caplen = ph->tap.th_wirelen > snaplen ? snaplen : ph->tap -.th_wirelen ; - if (bpf_filter(fcode, (char *)ph->packet, - ph->tap.th_wirelen, caplen)) { - if (cnt >= 0 && --cnt < 0) - goto out; - (*printit)((char *)ph->packet, - (struct timeval *)ph->tap.th_timestamp, - ph->tap.th_wirelen, caplen); - } - inc = ph->length.PacketOffset; - cc -= inc; - bp += inc; - } -#else /* !IBMRTPC */ - caplen = cc > snaplen ? snaplen : cc ; - if (bpf_filter(fcode, buf.hdr.packet, cc, caplen)) { - if (cnt >= 0 && --cnt < 0) - goto out; - (*printit)(buf.hdr.packet, &tv, cc, caplen); - } -#endif /* IBMRTPC */ - } - out: - wrapup(if_fd); -} - -/* Call ONLY if read() has returned an error on packet filter */ -static void -efReadError(int fid, char *msg) -{ - if (errno == EINVAL) { /* read MAXINT bytes already! */ - if (lseek(fid, 0, 0) < 0) { - perror("tcpdump: efReadError/lseek"); - exit(-1); - } - else - return; - } - else { - (void) fprintf(stderr, "tcpdump: "); - perror(msg); - exit(-1); - } -} - -void -wrapup(int fd) -{ -#ifdef IBMRTPC - struct enstats es; - - if (ioctl(fd, EIOSTATS, &es) == -1) { - perror("tcpdump: enet ioctl EIOSTATS error"); - exit(-1); - } - - fprintf(stderr, "%d packets queued", es.enStat_Rcnt); - if (es.enStat_Rdrops > 0) - fprintf(stderr, ", %d dropped", es.enStat_Rdrops); - if (es.enStat_Reads > 0) - fprintf(stderr, ", %d tcpdump %s", es.enStat_Reads, - es.enStat_Reads > 1 ? "reads" : "read"); - if (es.enStat_MaxRead > 1) - fprintf(stderr, ", %d packets in largest read", - es.enStat_MaxRead); - putc('\n', stderr); -#endif /* IBMRTPC */ - close(fd); -} - -int -initdevice(char *device, int pflag, int *linktype) -{ - struct eniocb ctl; - struct enfilter filter; - u_int maxwaiting; - int if_fd; - -#ifdef IBMRTPC - GETENETDEVICE(0, O_RDONLY, &if_fd); -#else /* !IBMRTPC */ - if_fd = open("/dev/enet", O_RDONLY, 0); -#endif /* IBMRTPC */ - - if (if_fd == -1) { - perror("tcpdump: enet open error"); - error( -"your system may not be properly configured; see \"man enet(4)\""); - exit(-1); - } - - /* Get operating parameters. */ - - if (ioctl(if_fd, EIOCGETP, (char *)&ctl) == -1) { - perror("tcpdump: enet ioctl EIOCGETP error"); - exit(-1); - } - - /* Set operating parameters. */ - -#ifdef IBMRTPC - ctl.en_rtout = 1 * ctl.en_hz; - ctl.en_tr_etherhead = 1; - ctl.en_tap_network = 1; - ctl.en_multi_packet = 1; - ctl.en_maxlen = BUFSPACE; -#else /* !IBMRTPC */ - ctl.en_rtout = 64; /* randomly picked value for HZ */ -#endif /* IBMRTPC */ - if (ioctl(if_fd, EIOCSETP, &ctl) == -1) { - perror("tcpdump: enet ioctl EIOCSETP error"); - exit(-1); - } - - /* Flush the receive queue, since we've changed - the operating parameters and we otherwise might - receive data without headers. */ - - if (ioctl(if_fd, EIOCFLUSH) == -1) { - perror("tcpdump: enet ioctl EIOCFLUSH error"); - exit(-1); - } - - /* Set the receive queue depth to its maximum. */ - - maxwaiting = ctl.en_maxwaiting; - if (ioctl(if_fd, EIOCSETW, &maxwaiting) == -1) { - perror("tcpdump: enet ioctl EIOCSETW error"); - exit(-1); - } - -#ifdef IBMRTPC - /* Clear statistics. */ - - if (ioctl(if_fd, EIOCLRSTAT, 0) == -1) { - perror("tcpdump: enet ioctl EIOCLRSTAT error"); - exit(-1); - } -#endif /* IBMRTPC */ - - /* Set the filter (accept all packets). */ - - filter.enf_Priority = 3; - filter.enf_FilterLen = 0; - if (ioctl(if_fd, EIOCSETF, &filter) == -1) { - perror("tcpdump: enet ioctl EIOCSETF error"); - exit(-1); - } - /* - * "enetfilter" supports only ethernets. - */ - *linktype = DLT_EN10MB; - - return(if_fd); -} diff --git a/contrib/libpcap/pcap-int.h b/contrib/libpcap/pcap-int.h deleted file mode 100644 index 3071c77..0000000 --- a/contrib/libpcap/pcap-int.h +++ /dev/null @@ -1,344 +0,0 @@ -/* - * Copyright (c) 1994, 1995, 1996 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the Computer Systems - * Engineering Group at Lawrence Berkeley Laboratory. - * 4. Neither the name of the University nor of the Laboratory may be used - * to endorse or promote products derived from this software without - * specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#) $Header: /tcpdump/master/libpcap/pcap-int.h,v 1.68.2.11 2007/06/22 06:43:58 guy Exp $ (LBL) - */ - -#ifndef pcap_int_h -#define pcap_int_h - -#ifdef __cplusplus -extern "C" { -#endif - -#include <pcap.h> - -#ifdef WIN32 -#include <Packet32.h> -#endif /* WIN32 */ - -#ifdef MSDOS -#include <fcntl.h> -#include <io.h> -#endif - -/* - * Swap byte ordering of unsigned long long timestamp on a big endian - * machine. - */ -#define SWAPLL(ull) ((ull & 0xff00000000000000LL) >> 56) | \ - ((ull & 0x00ff000000000000LL) >> 40) | \ - ((ull & 0x0000ff0000000000LL) >> 24) | \ - ((ull & 0x000000ff00000000LL) >> 8) | \ - ((ull & 0x00000000ff000000LL) << 8) | \ - ((ull & 0x0000000000ff0000LL) << 24) | \ - ((ull & 0x000000000000ff00LL) << 40) | \ - ((ull & 0x00000000000000ffLL) << 56) - -/* - * Savefile - */ -typedef enum { - NOT_SWAPPED, - SWAPPED, - MAYBE_SWAPPED -} swapped_type_t; - -struct pcap_sf { - FILE *rfile; - int swapped; - int hdrsize; - swapped_type_t lengths_swapped; - int version_major; - int version_minor; - u_char *base; -}; - -struct pcap_md { - struct pcap_stat stat; - /*XXX*/ - int use_bpf; /* using kernel filter */ - u_long TotPkts; /* can't oflow for 79 hrs on ether */ - u_long TotAccepted; /* count accepted by filter */ - u_long TotDrops; /* count of dropped packets */ - long TotMissed; /* missed by i/f during this run */ - long OrigMissed; /* missed by i/f before this run */ - char *device; /* device name */ -#ifdef linux - int sock_packet; /* using Linux 2.0 compatible interface */ - int timeout; /* timeout specified to pcap_open_live */ - int clear_promisc; /* must clear promiscuous mode when we close */ - int cooked; /* using SOCK_DGRAM rather than SOCK_RAW */ - int ifindex; /* interface index of device we're bound to */ - int lo_ifindex; /* interface index of the loopback device */ - struct pcap *next; /* list of open promiscuous sock_packet pcaps */ - u_int packets_read; /* count of packets read with recvfrom() */ -#endif - -#ifdef HAVE_DAG_API -#ifdef HAVE_DAG_STREAMS_API - u_char *dag_mem_bottom; /* DAG card current memory bottom pointer */ - u_char *dag_mem_top; /* DAG card current memory top pointer */ -#else - void *dag_mem_base; /* DAG card memory base address */ - u_int dag_mem_bottom; /* DAG card current memory bottom offset */ - u_int dag_mem_top; /* DAG card current memory top offset */ -#endif /* HAVE_DAG_STREAMS_API */ - int dag_fcs_bits; /* Number of checksum bits from link layer */ - int dag_offset_flags; /* Flags to pass to dag_offset(). */ - int dag_stream; /* DAG stream number */ - int dag_timeout; /* timeout specified to pcap_open_live. - * Same as in linux above, introduce - * generally? */ -#endif /* HAVE_DAG_API */ -}; - -/* - * Ultrix, DEC OSF/1^H^H^H^H^H^H^H^H^HDigital UNIX^H^H^H^H^H^H^H^H^H^H^H^H - * Tru64 UNIX, and some versions of NetBSD pad FDDI packets to make everything - * line up on a nice boundary. - */ -#ifdef __NetBSD__ -#include <sys/param.h> /* needed to declare __NetBSD_Version__ */ -#endif - -#if defined(ultrix) || defined(__osf__) || (defined(__NetBSD__) && __NetBSD_Version__ > 106000000) -#define PCAP_FDDIPAD 3 -#endif - -struct pcap { -#ifdef WIN32 - ADAPTER *adapter; - LPPACKET Packet; - int timeout; - int nonblock; -#else - int fd; - int selectable_fd; - int send_fd; -#endif /* WIN32 */ - int snapshot; - int linktype; - int tzoff; /* timezone offset */ - int offset; /* offset for proper alignment */ - - int break_loop; /* flag set to force break from packet-reading loop */ - -#ifdef PCAP_FDDIPAD - int fddipad; -#endif - -#ifdef MSDOS - int inter_packet_wait; /* offline: wait between packets */ - void (*wait_proc)(void); /* call proc while waiting */ -#endif - - struct pcap_sf sf; - struct pcap_md md; - - /* - * Read buffer. - */ - int bufsize; - u_char *buffer; - u_char *bp; - int cc; - - /* - * Place holder for pcap_next(). - */ - u_char *pkt; - - /* We're accepting only packets in this direction/these directions. */ - pcap_direction_t direction; - - /* - * Methods. - */ - int (*read_op)(pcap_t *, int cnt, pcap_handler, u_char *); - int (*inject_op)(pcap_t *, const void *, size_t); - int (*setfilter_op)(pcap_t *, struct bpf_program *); - int (*setdirection_op)(pcap_t *, pcap_direction_t); - int (*set_datalink_op)(pcap_t *, int); - int (*getnonblock_op)(pcap_t *, char *); - int (*setnonblock_op)(pcap_t *, int, char *); - int (*stats_op)(pcap_t *, struct pcap_stat *); - void (*close_op)(pcap_t *); - - /* - * Placeholder for filter code if bpf not in kernel. - */ - struct bpf_program fcode; - - char errbuf[PCAP_ERRBUF_SIZE + 1]; - int dlt_count; - u_int *dlt_list; - - struct pcap_pkthdr pcap_header; /* This is needed for the pcap_next_ex() to work */ -}; - -/* - * This is a timeval as stored in a savefile. - * It has to use the same types everywhere, independent of the actual - * `struct timeval'; `struct timeval' has 32-bit tv_sec values on some - * platforms and 64-bit tv_sec values on other platforms, and writing - * out native `struct timeval' values would mean files could only be - * read on systems with the same tv_sec size as the system on which - * the file was written. - */ - -struct pcap_timeval { - bpf_int32 tv_sec; /* seconds */ - bpf_int32 tv_usec; /* microseconds */ -}; - -/* - * This is a `pcap_pkthdr' as actually stored in a savefile. - * - * Do not change the format of this structure, in any way (this includes - * changes that only affect the length of fields in this structure), - * and do not make the time stamp anything other than seconds and - * microseconds (e.g., seconds and nanoseconds). Instead: - * - * introduce a new structure for the new format; - * - * send mail to "tcpdump-workers@tcpdump.org", requesting a new - * magic number for your new capture file format, and, when - * you get the new magic number, put it in "savefile.c"; - * - * use that magic number for save files with the changed record - * header; - * - * make the code in "savefile.c" capable of reading files with - * the old record header as well as files with the new record header - * (using the magic number to determine the header format). - * - * Then supply the changes to "patches@tcpdump.org", so that future - * versions of libpcap and programs that use it (such as tcpdump) will - * be able to read your new capture file format. - */ - -struct pcap_sf_pkthdr { - struct pcap_timeval ts; /* time stamp */ - bpf_u_int32 caplen; /* length of portion present */ - bpf_u_int32 len; /* length this packet (off wire) */ -}; - -/* - * How a `pcap_pkthdr' is actually stored in savefiles written - * by some patched versions of libpcap (e.g. the ones in Red - * Hat Linux 6.1 and 6.2). - * - * Do not change the format of this structure, in any way (this includes - * changes that only affect the length of fields in this structure). - * Instead, introduce a new structure, as per the above. - */ - -struct pcap_sf_patched_pkthdr { - struct pcap_timeval ts; /* time stamp */ - bpf_u_int32 caplen; /* length of portion present */ - bpf_u_int32 len; /* length this packet (off wire) */ - int index; - unsigned short protocol; - unsigned char pkt_type; -}; - -int yylex(void); - -#ifndef min -#define min(a, b) ((a) > (b) ? (b) : (a)) -#endif - -/* XXX should these be in pcap.h? */ -int pcap_offline_read(pcap_t *, int, pcap_handler, u_char *); -int pcap_read(pcap_t *, int cnt, pcap_handler, u_char *); - -#ifndef HAVE_STRLCPY -#define strlcpy(x, y, z) \ - (strncpy((x), (y), (z)), \ - ((z) <= 0 ? 0 : ((x)[(z) - 1] = '\0')), \ - strlen((y))) -#endif - -#include <stdarg.h> - -#if !defined(HAVE_SNPRINTF) -#define snprintf pcap_snprintf -extern int snprintf (char *, size_t, const char *, ...); -#endif - -#if !defined(HAVE_VSNPRINTF) -#define vsnprintf pcap_vsnprintf -extern int vsnprintf (char *, size_t, const char *, va_list ap); -#endif - -/* - * Routines that most pcap implementations can use for non-blocking mode. - */ -#if !defined(WIN32) && !defined(MSDOS) -int pcap_getnonblock_fd(pcap_t *, char *); -int pcap_setnonblock_fd(pcap_t *p, int, char *); -#endif - -void pcap_close_common(pcap_t *); - -/* - * Internal interfaces for "pcap_findalldevs()". - * - * "pcap_platform_finddevs()" is a platform-dependent routine to - * add devices not found by the "standard" mechanisms (SIOCGIFCONF, - * "getifaddrs()", etc.. - * - * "pcap_add_if()" adds an interface to the list of interfaces. - */ -int pcap_platform_finddevs(pcap_if_t **, char *); -int add_addr_to_iflist(pcap_if_t **, const char *, u_int, struct sockaddr *, - size_t, struct sockaddr *, size_t, struct sockaddr *, size_t, - struct sockaddr *, size_t, char *); -int pcap_add_if(pcap_if_t **, const char *, u_int, const char *, char *); -struct sockaddr *dup_sockaddr(struct sockaddr *, size_t); -int add_or_find_if(pcap_if_t **, pcap_if_t **, const char *, u_int, - const char *, char *); - -#ifdef WIN32 -char *pcap_win32strerror(void); -#endif - -int install_bpf_program(pcap_t *, struct bpf_program *); - -int pcap_strcasecmp(const char *, const char *); - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/contrib/libpcap/pcap-linux.c b/contrib/libpcap/pcap-linux.c deleted file mode 100644 index e9db010..0000000 --- a/contrib/libpcap/pcap-linux.c +++ /dev/null @@ -1,2221 +0,0 @@ -/* - * pcap-linux.c: Packet capture interface to the Linux kernel - * - * Copyright (c) 2000 Torsten Landschoff <torsten@debian.org> - * Sebastian Krahmer <krahmer@cs.uni-potsdam.de> - * - * License: BSD - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. The names of the authors may not be used to endorse or promote - * products derived from this software without specific prior - * written permission. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/pcap-linux.c,v 1.110.2.14 2006/10/12 17:26:58 guy Exp $ (LBL)"; -#endif - -/* - * Known problems with 2.0[.x] kernels: - * - * - The loopback device gives every packet twice; on 2.2[.x] kernels, - * if we use PF_PACKET, we can filter out the transmitted version - * of the packet by using data in the "sockaddr_ll" returned by - * "recvfrom()", but, on 2.0[.x] kernels, we have to use - * PF_INET/SOCK_PACKET, which means "recvfrom()" supplies a - * "sockaddr_pkt" which doesn't give us enough information to let - * us do that. - * - * - We have to set the interface's IFF_PROMISC flag ourselves, if - * we're to run in promiscuous mode, which means we have to turn - * it off ourselves when we're done; the kernel doesn't keep track - * of how many sockets are listening promiscuously, which means - * it won't get turned off automatically when no sockets are - * listening promiscuously. We catch "pcap_close()" and, for - * interfaces we put into promiscuous mode, take them out of - * promiscuous mode - which isn't necessarily the right thing to - * do, if another socket also requested promiscuous mode between - * the time when we opened the socket and the time when we close - * the socket. - * - * - MSG_TRUNC isn't supported, so you can't specify that "recvfrom()" - * return the amount of data that you could have read, rather than - * the amount that was returned, so we can't just allocate a buffer - * whose size is the snapshot length and pass the snapshot length - * as the byte count, and also pass MSG_TRUNC, so that the return - * value tells us how long the packet was on the wire. - * - * This means that, if we want to get the actual size of the packet, - * so we can return it in the "len" field of the packet header, - * we have to read the entire packet, not just the part that fits - * within the snapshot length, and thus waste CPU time copying data - * from the kernel that our caller won't see. - * - * We have to get the actual size, and supply it in "len", because - * otherwise, the IP dissector in tcpdump, for example, will complain - * about "truncated-ip", as the packet will appear to have been - * shorter, on the wire, than the IP header said it should have been. - */ - - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "pcap-int.h" -#include "sll.h" - -#ifdef HAVE_DAG_API -#include "pcap-dag.h" -#endif /* HAVE_DAG_API */ - -#ifdef HAVE_SEPTEL_API -#include "pcap-septel.h" -#endif /* HAVE_SEPTEL_API */ - -#include <errno.h> -#include <stdlib.h> -#include <unistd.h> -#include <fcntl.h> -#include <string.h> -#include <sys/socket.h> -#include <sys/ioctl.h> -#include <sys/utsname.h> -#include <net/if.h> -#include <netinet/in.h> -#include <linux/if_ether.h> -#include <net/if_arp.h> - -/* - * If PF_PACKET is defined, we can use {SOCK_RAW,SOCK_DGRAM}/PF_PACKET - * sockets rather than SOCK_PACKET sockets. - * - * To use them, we include <linux/if_packet.h> rather than - * <netpacket/packet.h>; we do so because - * - * some Linux distributions (e.g., Slackware 4.0) have 2.2 or - * later kernels and libc5, and don't provide a <netpacket/packet.h> - * file; - * - * not all versions of glibc2 have a <netpacket/packet.h> file - * that defines stuff needed for some of the 2.4-or-later-kernel - * features, so if the system has a 2.4 or later kernel, we - * still can't use those features. - * - * We're already including a number of other <linux/XXX.h> headers, and - * this code is Linux-specific (no other OS has PF_PACKET sockets as - * a raw packet capture mechanism), so it's not as if you gain any - * useful portability by using <netpacket/packet.h> - * - * XXX - should we just include <linux/if_packet.h> even if PF_PACKET - * isn't defined? It only defines one data structure in 2.0.x, so - * it shouldn't cause any problems. - */ -#ifdef PF_PACKET -# include <linux/if_packet.h> - - /* - * On at least some Linux distributions (for example, Red Hat 5.2), - * there's no <netpacket/packet.h> file, but PF_PACKET is defined if - * you include <sys/socket.h>, but <linux/if_packet.h> doesn't define - * any of the PF_PACKET stuff such as "struct sockaddr_ll" or any of - * the PACKET_xxx stuff. - * - * So we check whether PACKET_HOST is defined, and assume that we have - * PF_PACKET sockets only if it is defined. - */ -# ifdef PACKET_HOST -# define HAVE_PF_PACKET_SOCKETS -# endif /* PACKET_HOST */ -#endif /* PF_PACKET */ - -#ifdef SO_ATTACH_FILTER -#include <linux/types.h> -#include <linux/filter.h> -#endif - -#ifndef __GLIBC__ -typedef int socklen_t; -#endif - -#ifndef MSG_TRUNC -/* - * This is being compiled on a system that lacks MSG_TRUNC; define it - * with the value it has in the 2.2 and later kernels, so that, on - * those kernels, when we pass it in the flags argument to "recvfrom()" - * we're passing the right value and thus get the MSG_TRUNC behavior - * we want. (We don't get that behavior on 2.0[.x] kernels, because - * they didn't support MSG_TRUNC.) - */ -#define MSG_TRUNC 0x20 -#endif - -#ifndef SOL_PACKET -/* - * This is being compiled on a system that lacks SOL_PACKET; define it - * with the value it has in the 2.2 and later kernels, so that we can - * set promiscuous mode in the good modern way rather than the old - * 2.0-kernel crappy way. - */ -#define SOL_PACKET 263 -#endif - -#define MAX_LINKHEADER_SIZE 256 - -/* - * When capturing on all interfaces we use this as the buffer size. - * Should be bigger then all MTUs that occur in real life. - * 64kB should be enough for now. - */ -#define BIGGER_THAN_ALL_MTUS (64*1024) - -/* - * Prototypes for internal functions - */ -static void map_arphrd_to_dlt(pcap_t *, int, int); -static int live_open_old(pcap_t *, const char *, int, int, char *); -static int live_open_new(pcap_t *, const char *, int, int, char *); -static int pcap_read_linux(pcap_t *, int, pcap_handler, u_char *); -static int pcap_read_packet(pcap_t *, pcap_handler, u_char *); -static int pcap_inject_linux(pcap_t *, const void *, size_t); -static int pcap_stats_linux(pcap_t *, struct pcap_stat *); -static int pcap_setfilter_linux(pcap_t *, struct bpf_program *); -static int pcap_setdirection_linux(pcap_t *, pcap_direction_t); -static void pcap_close_linux(pcap_t *); - -/* - * Wrap some ioctl calls - */ -#ifdef HAVE_PF_PACKET_SOCKETS -static int iface_get_id(int fd, const char *device, char *ebuf); -#endif -static int iface_get_mtu(int fd, const char *device, char *ebuf); -static int iface_get_arptype(int fd, const char *device, char *ebuf); -#ifdef HAVE_PF_PACKET_SOCKETS -static int iface_bind(int fd, int ifindex, char *ebuf); -#endif -static int iface_bind_old(int fd, const char *device, char *ebuf); - -#ifdef SO_ATTACH_FILTER -static int fix_program(pcap_t *handle, struct sock_fprog *fcode); -static int fix_offset(struct bpf_insn *p); -static int set_kernel_filter(pcap_t *handle, struct sock_fprog *fcode); -static int reset_kernel_filter(pcap_t *handle); - -static struct sock_filter total_insn - = BPF_STMT(BPF_RET | BPF_K, 0); -static struct sock_fprog total_fcode - = { 1, &total_insn }; -#endif - -/* - * Get a handle for a live capture from the given device. You can - * pass NULL as device to get all packages (without link level - * information of course). If you pass 1 as promisc the interface - * will be set to promiscous mode (XXX: I think this usage should - * be deprecated and functions be added to select that later allow - * modification of that values -- Torsten). - * - * See also pcap(3). - */ -pcap_t * -pcap_open_live(const char *device, int snaplen, int promisc, int to_ms, - char *ebuf) -{ - pcap_t *handle; - int mtu; - int err; - int live_open_ok = 0; - struct utsname utsname; - -#ifdef HAVE_DAG_API - if (strstr(device, "dag")) { - return dag_open_live(device, snaplen, promisc, to_ms, ebuf); - } -#endif /* HAVE_DAG_API */ - -#ifdef HAVE_SEPTEL_API - if (strstr(device, "septel")) { - return septel_open_live(device, snaplen, promisc, to_ms, ebuf); - } -#endif /* HAVE_SEPTEL_API */ - - /* Allocate a handle for this session. */ - - handle = malloc(sizeof(*handle)); - if (handle == NULL) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "malloc: %s", - pcap_strerror(errno)); - return NULL; - } - - /* Initialize some components of the pcap structure. */ - - memset(handle, 0, sizeof(*handle)); - handle->snapshot = snaplen; - handle->md.timeout = to_ms; - - /* - * NULL and "any" are special devices which give us the hint to - * monitor all devices. - */ - if (!device || strcmp(device, "any") == 0) { - device = NULL; - handle->md.device = strdup("any"); - if (promisc) { - promisc = 0; - /* Just a warning. */ - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "Promiscuous mode not supported on the \"any\" device"); - } - - } else - handle->md.device = strdup(device); - - if (handle->md.device == NULL) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "strdup: %s", - pcap_strerror(errno) ); - free(handle); - return NULL; - } - - /* - * Current Linux kernels use the protocol family PF_PACKET to - * allow direct access to all packets on the network while - * older kernels had a special socket type SOCK_PACKET to - * implement this feature. - * While this old implementation is kind of obsolete we need - * to be compatible with older kernels for a while so we are - * trying both methods with the newer method preferred. - */ - - if ((err = live_open_new(handle, device, promisc, to_ms, ebuf)) == 1) - live_open_ok = 1; - else if (err == 0) { - /* Non-fatal error; try old way */ - if (live_open_old(handle, device, promisc, to_ms, ebuf)) - live_open_ok = 1; - } - if (!live_open_ok) { - /* - * Both methods to open the packet socket failed. Tidy - * up and report our failure (ebuf is expected to be - * set by the functions above). - */ - - if (handle->md.device != NULL) - free(handle->md.device); - free(handle); - return NULL; - } - - /* - * Compute the buffer size. - * - * If we're using SOCK_PACKET, this might be a 2.0[.x] kernel, - * and might require special handling - check. - */ - if (handle->md.sock_packet && (uname(&utsname) < 0 || - strncmp(utsname.release, "2.0", 3) == 0)) { - /* - * We're using a SOCK_PACKET structure, and either - * we couldn't find out what kernel release this is, - * or it's a 2.0[.x] kernel. - * - * In the 2.0[.x] kernel, a "recvfrom()" on - * a SOCK_PACKET socket, with MSG_TRUNC set, will - * return the number of bytes read, so if we pass - * a length based on the snapshot length, it'll - * return the number of bytes from the packet - * copied to userland, not the actual length - * of the packet. - * - * This means that, for example, the IP dissector - * in tcpdump will get handed a packet length less - * than the length in the IP header, and will - * complain about "truncated-ip". - * - * So we don't bother trying to copy from the - * kernel only the bytes in which we're interested, - * but instead copy them all, just as the older - * versions of libpcap for Linux did. - * - * The buffer therefore needs to be big enough to - * hold the largest packet we can get from this - * device. Unfortunately, we can't get the MRU - * of the network; we can only get the MTU. The - * MTU may be too small, in which case a packet larger - * than the buffer size will be truncated *and* we - * won't get the actual packet size. - * - * However, if the snapshot length is larger than - * the buffer size based on the MTU, we use the - * snapshot length as the buffer size, instead; - * this means that with a sufficiently large snapshot - * length we won't artificially truncate packets - * to the MTU-based size. - * - * This mess just one of many problems with packet - * capture on 2.0[.x] kernels; you really want a - * 2.2[.x] or later kernel if you want packet capture - * to work well. - */ - mtu = iface_get_mtu(handle->fd, device, ebuf); - if (mtu == -1) { - pcap_close_linux(handle); - free(handle); - return NULL; - } - handle->bufsize = MAX_LINKHEADER_SIZE + mtu; - if (handle->bufsize < handle->snapshot) - handle->bufsize = handle->snapshot; - } else { - /* - * This is a 2.2[.x] or later kernel (we know that - * either because we're not using a SOCK_PACKET - * socket - PF_PACKET is supported only in 2.2 - * and later kernels - or because we checked the - * kernel version). - * - * We can safely pass "recvfrom()" a byte count - * based on the snapshot length. - * - * If we're in cooked mode, make the snapshot length - * large enough to hold a "cooked mode" header plus - * 1 byte of packet data (so we don't pass a byte - * count of 0 to "recvfrom()"). - */ - if (handle->md.cooked) { - if (handle->snapshot < SLL_HDR_LEN + 1) - handle->snapshot = SLL_HDR_LEN + 1; - } - handle->bufsize = handle->snapshot; - } - - /* Allocate the buffer */ - - handle->buffer = malloc(handle->bufsize + handle->offset); - if (!handle->buffer) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "malloc: %s", pcap_strerror(errno)); - pcap_close_linux(handle); - free(handle); - return NULL; - } - - /* - * "handle->fd" is a socket, so "select()" and "poll()" - * should work on it. - */ - handle->selectable_fd = handle->fd; - - handle->read_op = pcap_read_linux; - handle->inject_op = pcap_inject_linux; - handle->setfilter_op = pcap_setfilter_linux; - handle->setdirection_op = pcap_setdirection_linux; - handle->set_datalink_op = NULL; /* can't change data link type */ - handle->getnonblock_op = pcap_getnonblock_fd; - handle->setnonblock_op = pcap_setnonblock_fd; - handle->stats_op = pcap_stats_linux; - handle->close_op = pcap_close_linux; - - return handle; -} - -/* - * Read at most max_packets from the capture stream and call the callback - * for each of them. Returns the number of packets handled or -1 if an - * error occured. - */ -static int -pcap_read_linux(pcap_t *handle, int max_packets, pcap_handler callback, u_char *user) -{ - /* - * Currently, on Linux only one packet is delivered per read, - * so we don't loop. - */ - return pcap_read_packet(handle, callback, user); -} - -/* - * Read a packet from the socket calling the handler provided by - * the user. Returns the number of packets received or -1 if an - * error occured. - */ -static int -pcap_read_packet(pcap_t *handle, pcap_handler callback, u_char *userdata) -{ - u_char *bp; - int offset; -#ifdef HAVE_PF_PACKET_SOCKETS - struct sockaddr_ll from; - struct sll_header *hdrp; -#else - struct sockaddr from; -#endif - socklen_t fromlen; - int packet_len, caplen; - struct pcap_pkthdr pcap_header; - -#ifdef HAVE_PF_PACKET_SOCKETS - /* - * If this is a cooked device, leave extra room for a - * fake packet header. - */ - if (handle->md.cooked) - offset = SLL_HDR_LEN; - else - offset = 0; -#else - /* - * This system doesn't have PF_PACKET sockets, so it doesn't - * support cooked devices. - */ - offset = 0; -#endif - - /* Receive a single packet from the kernel */ - - bp = handle->buffer + handle->offset; - do { - /* - * Has "pcap_breakloop()" been called? - */ - if (handle->break_loop) { - /* - * Yes - clear the flag that indicates that it - * has, and return -2 as an indication that we - * were told to break out of the loop. - */ - handle->break_loop = 0; - return -2; - } - fromlen = sizeof(from); - packet_len = recvfrom( - handle->fd, bp + offset, - handle->bufsize - offset, MSG_TRUNC, - (struct sockaddr *) &from, &fromlen); - } while (packet_len == -1 && errno == EINTR); - - /* Check if an error occured */ - - if (packet_len == -1) { - if (errno == EAGAIN) - return 0; /* no packet there */ - else { - snprintf(handle->errbuf, sizeof(handle->errbuf), - "recvfrom: %s", pcap_strerror(errno)); - return -1; - } - } - -#ifdef HAVE_PF_PACKET_SOCKETS - if (!handle->md.sock_packet) { - /* - * Unfortunately, there is a window between socket() and - * bind() where the kernel may queue packets from any - * interface. If we're bound to a particular interface, - * discard packets not from that interface. - * - * (If socket filters are supported, we could do the - * same thing we do when changing the filter; however, - * that won't handle packet sockets without socket - * filter support, and it's a bit more complicated. - * It would save some instructions per packet, however.) - */ - if (handle->md.ifindex != -1 && - from.sll_ifindex != handle->md.ifindex) - return 0; - - /* - * Do checks based on packet direction. - * We can only do this if we're using PF_PACKET; the - * address returned for SOCK_PACKET is a "sockaddr_pkt" - * which lacks the relevant packet type information. - */ - if (from.sll_pkttype == PACKET_OUTGOING) { - /* - * Outgoing packet. - * If this is from the loopback device, reject it; - * we'll see the packet as an incoming packet as well, - * and we don't want to see it twice. - */ - if (from.sll_ifindex == handle->md.lo_ifindex) - return 0; - - /* - * If the user only wants incoming packets, reject it. - */ - if (handle->direction == PCAP_D_IN) - return 0; - } else { - /* - * Incoming packet. - * If the user only wants outgoing packets, reject it. - */ - if (handle->direction == PCAP_D_OUT) - return 0; - } - } -#endif - -#ifdef HAVE_PF_PACKET_SOCKETS - /* - * If this is a cooked device, fill in the fake packet header. - */ - if (handle->md.cooked) { - /* - * Add the length of the fake header to the length - * of packet data we read. - */ - packet_len += SLL_HDR_LEN; - - hdrp = (struct sll_header *)bp; - - /* - * Map the PACKET_ value to a LINUX_SLL_ value; we - * want the same numerical value to be used in - * the link-layer header even if the numerical values - * for the PACKET_ #defines change, so that programs - * that look at the packet type field will always be - * able to handle DLT_LINUX_SLL captures. - */ - switch (from.sll_pkttype) { - - case PACKET_HOST: - hdrp->sll_pkttype = htons(LINUX_SLL_HOST); - break; - - case PACKET_BROADCAST: - hdrp->sll_pkttype = htons(LINUX_SLL_BROADCAST); - break; - - case PACKET_MULTICAST: - hdrp->sll_pkttype = htons(LINUX_SLL_MULTICAST); - break; - - case PACKET_OTHERHOST: - hdrp->sll_pkttype = htons(LINUX_SLL_OTHERHOST); - break; - - case PACKET_OUTGOING: - hdrp->sll_pkttype = htons(LINUX_SLL_OUTGOING); - break; - - default: - hdrp->sll_pkttype = -1; - break; - } - - hdrp->sll_hatype = htons(from.sll_hatype); - hdrp->sll_halen = htons(from.sll_halen); - memcpy(hdrp->sll_addr, from.sll_addr, - (from.sll_halen > SLL_ADDRLEN) ? - SLL_ADDRLEN : - from.sll_halen); - hdrp->sll_protocol = from.sll_protocol; - } -#endif - - /* - * XXX: According to the kernel source we should get the real - * packet len if calling recvfrom with MSG_TRUNC set. It does - * not seem to work here :(, but it is supported by this code - * anyway. - * To be honest the code RELIES on that feature so this is really - * broken with 2.2.x kernels. - * I spend a day to figure out what's going on and I found out - * that the following is happening: - * - * The packet comes from a random interface and the packet_rcv - * hook is called with a clone of the packet. That code inserts - * the packet into the receive queue of the packet socket. - * If a filter is attached to that socket that filter is run - * first - and there lies the problem. The default filter always - * cuts the packet at the snaplen: - * - * # tcpdump -d - * (000) ret #68 - * - * So the packet filter cuts down the packet. The recvfrom call - * says "hey, it's only 68 bytes, it fits into the buffer" with - * the result that we don't get the real packet length. This - * is valid at least until kernel 2.2.17pre6. - * - * We currently handle this by making a copy of the filter - * program, fixing all "ret" instructions with non-zero - * operands to have an operand of 65535 so that the filter - * doesn't truncate the packet, and supplying that modified - * filter to the kernel. - */ - - caplen = packet_len; - if (caplen > handle->snapshot) - caplen = handle->snapshot; - - /* Run the packet filter if not using kernel filter */ - if (!handle->md.use_bpf && handle->fcode.bf_insns) { - if (bpf_filter(handle->fcode.bf_insns, bp, - packet_len, caplen) == 0) - { - /* rejected by filter */ - return 0; - } - } - - /* Fill in our own header data */ - - if (ioctl(handle->fd, SIOCGSTAMP, &pcap_header.ts) == -1) { - snprintf(handle->errbuf, sizeof(handle->errbuf), - "SIOCGSTAMP: %s", pcap_strerror(errno)); - return -1; - } - pcap_header.caplen = caplen; - pcap_header.len = packet_len; - - /* - * Count the packet. - * - * Arguably, we should count them before we check the filter, - * as on many other platforms "ps_recv" counts packets - * handed to the filter rather than packets that passed - * the filter, but if filtering is done in the kernel, we - * can't get a count of packets that passed the filter, - * and that would mean the meaning of "ps_recv" wouldn't - * be the same on all Linux systems. - * - * XXX - it's not the same on all systems in any case; - * ideally, we should have a "get the statistics" call - * that supplies more counts and indicates which of them - * it supplies, so that we supply a count of packets - * handed to the filter only on platforms where that - * information is available. - * - * We count them here even if we can get the packet count - * from the kernel, as we can only determine at run time - * whether we'll be able to get it from the kernel (if - * HAVE_TPACKET_STATS isn't defined, we can't get it from - * the kernel, but if it is defined, the library might - * have been built with a 2.4 or later kernel, but we - * might be running on a 2.2[.x] kernel without Alexey - * Kuznetzov's turbopacket patches, and thus the kernel - * might not be able to supply those statistics). We - * could, I guess, try, when opening the socket, to get - * the statistics, and if we can not increment the count - * here, but it's not clear that always incrementing - * the count is more expensive than always testing a flag - * in memory. - * - * We keep the count in "md.packets_read", and use that for - * "ps_recv" if we can't get the statistics from the kernel. - * We do that because, if we *can* get the statistics from - * the kernel, we use "md.stat.ps_recv" and "md.stat.ps_drop" - * as running counts, as reading the statistics from the - * kernel resets the kernel statistics, and if we directly - * increment "md.stat.ps_recv" here, that means it will - * count packets *twice* on systems where we can get kernel - * statistics - once here, and once in pcap_stats_linux(). - */ - handle->md.packets_read++; - - /* Call the user supplied callback function */ - callback(userdata, &pcap_header, bp); - - return 1; -} - -static int -pcap_inject_linux(pcap_t *handle, const void *buf, size_t size) -{ - int ret; - -#ifdef HAVE_PF_PACKET_SOCKETS - if (!handle->md.sock_packet) { - /* PF_PACKET socket */ - if (handle->md.ifindex == -1) { - /* - * We don't support sending on the "any" device. - */ - strlcpy(handle->errbuf, - "Sending packets isn't supported on the \"any\" device", - PCAP_ERRBUF_SIZE); - return (-1); - } - - if (handle->md.cooked) { - /* - * We don't support sending on the "any" device. - * - * XXX - how do you send on a bound cooked-mode - * socket? - * Is a "sendto()" required there? - */ - strlcpy(handle->errbuf, - "Sending packets isn't supported in cooked mode", - PCAP_ERRBUF_SIZE); - return (-1); - } - } -#endif - - ret = send(handle->fd, buf, size, 0); - if (ret == -1) { - snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, "send: %s", - pcap_strerror(errno)); - return (-1); - } - return (ret); -} - -/* - * Get the statistics for the given packet capture handle. - * Reports the number of dropped packets iff the kernel supports - * the PACKET_STATISTICS "getsockopt()" argument (2.4 and later - * kernels, and 2.2[.x] kernels with Alexey Kuznetzov's turbopacket - * patches); otherwise, that information isn't available, and we lie - * and report 0 as the count of dropped packets. - */ -static int -pcap_stats_linux(pcap_t *handle, struct pcap_stat *stats) -{ -#ifdef HAVE_TPACKET_STATS - struct tpacket_stats kstats; - socklen_t len = sizeof (struct tpacket_stats); -#endif - -#ifdef HAVE_TPACKET_STATS - /* - * Try to get the packet counts from the kernel. - */ - if (getsockopt(handle->fd, SOL_PACKET, PACKET_STATISTICS, - &kstats, &len) > -1) { - /* - * On systems where the PACKET_STATISTICS "getsockopt()" - * argument is supported on PF_PACKET sockets: - * - * "ps_recv" counts only packets that *passed* the - * filter, not packets that didn't pass the filter. - * This includes packets later dropped because we - * ran out of buffer space. - * - * "ps_drop" counts packets dropped because we ran - * out of buffer space. It doesn't count packets - * dropped by the interface driver. It counts only - * packets that passed the filter. - * - * Both statistics include packets not yet read from - * the kernel by libpcap, and thus not yet seen by - * the application. - * - * In "linux/net/packet/af_packet.c", at least in the - * 2.4.9 kernel, "tp_packets" is incremented for every - * packet that passes the packet filter *and* is - * successfully queued on the socket; "tp_drops" is - * incremented for every packet dropped because there's - * not enough free space in the socket buffer. - * - * When the statistics are returned for a PACKET_STATISTICS - * "getsockopt()" call, "tp_drops" is added to "tp_packets", - * so that "tp_packets" counts all packets handed to - * the PF_PACKET socket, including packets dropped because - * there wasn't room on the socket buffer - but not - * including packets that didn't pass the filter. - * - * In the BSD BPF, the count of received packets is - * incremented for every packet handed to BPF, regardless - * of whether it passed the filter. - * - * We can't make "pcap_stats()" work the same on both - * platforms, but the best approximation is to return - * "tp_packets" as the count of packets and "tp_drops" - * as the count of drops. - * - * Keep a running total because each call to - * getsockopt(handle->fd, SOL_PACKET, PACKET_STATISTICS, .... - * resets the counters to zero. - */ - handle->md.stat.ps_recv += kstats.tp_packets; - handle->md.stat.ps_drop += kstats.tp_drops; - *stats = handle->md.stat; - return 0; - } - else - { - /* - * If the error was EOPNOTSUPP, fall through, so that - * if you build the library on a system with - * "struct tpacket_stats" and run it on a system - * that doesn't, it works as it does if the library - * is built on a system without "struct tpacket_stats". - */ - if (errno != EOPNOTSUPP) { - snprintf(handle->errbuf, PCAP_ERRBUF_SIZE, - "pcap_stats: %s", pcap_strerror(errno)); - return -1; - } - } -#endif - /* - * On systems where the PACKET_STATISTICS "getsockopt()" argument - * is not supported on PF_PACKET sockets: - * - * "ps_recv" counts only packets that *passed* the filter, - * not packets that didn't pass the filter. It does not - * count packets dropped because we ran out of buffer - * space. - * - * "ps_drop" is not supported. - * - * "ps_recv" doesn't include packets not yet read from - * the kernel by libpcap. - * - * We maintain the count of packets processed by libpcap in - * "md.packets_read", for reasons described in the comment - * at the end of pcap_read_packet(). We have no idea how many - * packets were dropped. - */ - stats->ps_recv = handle->md.packets_read; - stats->ps_drop = 0; - return 0; -} - -/* - * Description string for the "any" device. - */ -static const char any_descr[] = "Pseudo-device that captures on all interfaces"; - -int -pcap_platform_finddevs(pcap_if_t **alldevsp, char *errbuf) -{ - if (pcap_add_if(alldevsp, "any", 0, any_descr, errbuf) < 0) - return (-1); - -#ifdef HAVE_DAG_API - if (dag_platform_finddevs(alldevsp, errbuf) < 0) - return (-1); -#endif /* HAVE_DAG_API */ - -#ifdef HAVE_SEPTEL_API - if (septel_platform_finddevs(alldevsp, errbuf) < 0) - return (-1); -#endif /* HAVE_SEPTEL_API */ - - return (0); -} - -/* - * Attach the given BPF code to the packet capture device. - */ -static int -pcap_setfilter_linux(pcap_t *handle, struct bpf_program *filter) -{ -#ifdef SO_ATTACH_FILTER - struct sock_fprog fcode; - int can_filter_in_kernel; - int err = 0; -#endif - - if (!handle) - return -1; - if (!filter) { - strncpy(handle->errbuf, "setfilter: No filter specified", - sizeof(handle->errbuf)); - return -1; - } - - /* Make our private copy of the filter */ - - if (install_bpf_program(handle, filter) < 0) - /* install_bpf_program() filled in errbuf */ - return -1; - - /* - * Run user level packet filter by default. Will be overriden if - * installing a kernel filter succeeds. - */ - handle->md.use_bpf = 0; - - /* Install kernel level filter if possible */ - -#ifdef SO_ATTACH_FILTER -#ifdef USHRT_MAX - if (handle->fcode.bf_len > USHRT_MAX) { - /* - * fcode.len is an unsigned short for current kernel. - * I have yet to see BPF-Code with that much - * instructions but still it is possible. So for the - * sake of correctness I added this check. - */ - fprintf(stderr, "Warning: Filter too complex for kernel\n"); - fcode.len = 0; - fcode.filter = NULL; - can_filter_in_kernel = 0; - } else -#endif /* USHRT_MAX */ - { - /* - * Oh joy, the Linux kernel uses struct sock_fprog instead - * of struct bpf_program and of course the length field is - * of different size. Pointed out by Sebastian - * - * Oh, and we also need to fix it up so that all "ret" - * instructions with non-zero operands have 65535 as the - * operand, and so that, if we're in cooked mode, all - * memory-reference instructions use special magic offsets - * in references to the link-layer header and assume that - * the link-layer payload begins at 0; "fix_program()" - * will do that. - */ - switch (fix_program(handle, &fcode)) { - - case -1: - default: - /* - * Fatal error; just quit. - * (The "default" case shouldn't happen; we - * return -1 for that reason.) - */ - return -1; - - case 0: - /* - * The program performed checks that we can't make - * work in the kernel. - */ - can_filter_in_kernel = 0; - break; - - case 1: - /* - * We have a filter that'll work in the kernel. - */ - can_filter_in_kernel = 1; - break; - } - } - - if (can_filter_in_kernel) { - if ((err = set_kernel_filter(handle, &fcode)) == 0) - { - /* Installation succeded - using kernel filter. */ - handle->md.use_bpf = 1; - } - else if (err == -1) /* Non-fatal error */ - { - /* - * Print a warning if we weren't able to install - * the filter for a reason other than "this kernel - * isn't configured to support socket filters. - */ - if (errno != ENOPROTOOPT && errno != EOPNOTSUPP) { - fprintf(stderr, - "Warning: Kernel filter failed: %s\n", - pcap_strerror(errno)); - } - } - } - - /* - * If we're not using the kernel filter, get rid of any kernel - * filter that might've been there before, e.g. because the - * previous filter could work in the kernel, or because some other - * code attached a filter to the socket by some means other than - * calling "pcap_setfilter()". Otherwise, the kernel filter may - * filter out packets that would pass the new userland filter. - */ - if (!handle->md.use_bpf) - reset_kernel_filter(handle); - - /* - * Free up the copy of the filter that was made by "fix_program()". - */ - if (fcode.filter != NULL) - free(fcode.filter); - - if (err == -2) - /* Fatal error */ - return -1; -#endif /* SO_ATTACH_FILTER */ - - return 0; -} - -/* - * Set direction flag: Which packets do we accept on a forwarding - * single device? IN, OUT or both? - */ -static int -pcap_setdirection_linux(pcap_t *handle, pcap_direction_t d) -{ -#ifdef HAVE_PF_PACKET_SOCKETS - if (!handle->md.sock_packet) { - handle->direction = d; - return 0; - } -#endif - /* - * We're not using PF_PACKET sockets, so we can't determine - * the direction of the packet. - */ - snprintf(handle->errbuf, sizeof(handle->errbuf), - "Setting direction is not supported on SOCK_PACKET sockets"); - return -1; -} - -/* - * Linux uses the ARP hardware type to identify the type of an - * interface. pcap uses the DLT_xxx constants for this. This - * function takes a pointer to a "pcap_t", and an ARPHRD_xxx - * constant, as arguments, and sets "handle->linktype" to the - * appropriate DLT_XXX constant and sets "handle->offset" to - * the appropriate value (to make "handle->offset" plus link-layer - * header length be a multiple of 4, so that the link-layer payload - * will be aligned on a 4-byte boundary when capturing packets). - * (If the offset isn't set here, it'll be 0; add code as appropriate - * for cases where it shouldn't be 0.) - * - * If "cooked_ok" is non-zero, we can use DLT_LINUX_SLL and capture - * in cooked mode; otherwise, we can't use cooked mode, so we have - * to pick some type that works in raw mode, or fail. - * - * Sets the link type to -1 if unable to map the type. - */ -static void map_arphrd_to_dlt(pcap_t *handle, int arptype, int cooked_ok) -{ - switch (arptype) { - - case ARPHRD_ETHER: - /* - * This is (presumably) a real Ethernet capture; give it a - * link-layer-type list with DLT_EN10MB and DLT_DOCSIS, so - * that an application can let you choose it, in case you're - * capturing DOCSIS traffic that a Cisco Cable Modem - * Termination System is putting out onto an Ethernet (it - * doesn't put an Ethernet header onto the wire, it puts raw - * DOCSIS frames out on the wire inside the low-level - * Ethernet framing). - * - * XXX - are there any sorts of "fake Ethernet" that have - * ARPHRD_ETHER but that *shouldn't offer DLT_DOCSIS as - * a Cisco CMTS won't put traffic onto it or get traffic - * bridged onto it? ISDN is handled in "live_open_new()", - * as we fall back on cooked mode there; are there any - * others? - */ - handle->dlt_list = (u_int *) malloc(sizeof(u_int) * 2); - /* - * If that fails, just leave the list empty. - */ - if (handle->dlt_list != NULL) { - handle->dlt_list[0] = DLT_EN10MB; - handle->dlt_list[1] = DLT_DOCSIS; - handle->dlt_count = 2; - } - /* FALLTHROUGH */ - - case ARPHRD_METRICOM: - case ARPHRD_LOOPBACK: - handle->linktype = DLT_EN10MB; - handle->offset = 2; - break; - - case ARPHRD_EETHER: - handle->linktype = DLT_EN3MB; - break; - - case ARPHRD_AX25: - handle->linktype = DLT_AX25; - break; - - case ARPHRD_PRONET: - handle->linktype = DLT_PRONET; - break; - - case ARPHRD_CHAOS: - handle->linktype = DLT_CHAOS; - break; - -#ifndef ARPHRD_IEEE802_TR -#define ARPHRD_IEEE802_TR 800 /* From Linux 2.4 */ -#endif - case ARPHRD_IEEE802_TR: - case ARPHRD_IEEE802: - handle->linktype = DLT_IEEE802; - handle->offset = 2; - break; - - case ARPHRD_ARCNET: - handle->linktype = DLT_ARCNET_LINUX; - break; - -#ifndef ARPHRD_FDDI /* From Linux 2.2.13 */ -#define ARPHRD_FDDI 774 -#endif - case ARPHRD_FDDI: - handle->linktype = DLT_FDDI; - handle->offset = 3; - break; - -#ifndef ARPHRD_ATM /* FIXME: How to #include this? */ -#define ARPHRD_ATM 19 -#endif - case ARPHRD_ATM: - /* - * The Classical IP implementation in ATM for Linux - * supports both what RFC 1483 calls "LLC Encapsulation", - * in which each packet has an LLC header, possibly - * with a SNAP header as well, prepended to it, and - * what RFC 1483 calls "VC Based Multiplexing", in which - * different virtual circuits carry different network - * layer protocols, and no header is prepended to packets. - * - * They both have an ARPHRD_ type of ARPHRD_ATM, so - * you can't use the ARPHRD_ type to find out whether - * captured packets will have an LLC header, and, - * while there's a socket ioctl to *set* the encapsulation - * type, there's no ioctl to *get* the encapsulation type. - * - * This means that - * - * programs that dissect Linux Classical IP frames - * would have to check for an LLC header and, - * depending on whether they see one or not, dissect - * the frame as LLC-encapsulated or as raw IP (I - * don't know whether there's any traffic other than - * IP that would show up on the socket, or whether - * there's any support for IPv6 in the Linux - * Classical IP code); - * - * filter expressions would have to compile into - * code that checks for an LLC header and does - * the right thing. - * - * Both of those are a nuisance - and, at least on systems - * that support PF_PACKET sockets, we don't have to put - * up with those nuisances; instead, we can just capture - * in cooked mode. That's what we'll do, if we can. - * Otherwise, we'll just fail. - */ - if (cooked_ok) - handle->linktype = DLT_LINUX_SLL; - else - handle->linktype = -1; - break; - -#ifndef ARPHRD_IEEE80211 /* From Linux 2.4.6 */ -#define ARPHRD_IEEE80211 801 -#endif - case ARPHRD_IEEE80211: - handle->linktype = DLT_IEEE802_11; - break; - -#ifndef ARPHRD_IEEE80211_PRISM /* From Linux 2.4.18 */ -#define ARPHRD_IEEE80211_PRISM 802 -#endif - case ARPHRD_IEEE80211_PRISM: - handle->linktype = DLT_PRISM_HEADER; - break; - -#ifndef ARPHRD_IEEE80211_RADIOTAP /* new */ -#define ARPHRD_IEEE80211_RADIOTAP 803 -#endif - case ARPHRD_IEEE80211_RADIOTAP: - handle->linktype = DLT_IEEE802_11_RADIO; - break; - - case ARPHRD_PPP: - /* - * Some PPP code in the kernel supplies no link-layer - * header whatsoever to PF_PACKET sockets; other PPP - * code supplies PPP link-layer headers ("syncppp.c"); - * some PPP code might supply random link-layer - * headers (PPP over ISDN - there's code in Ethereal, - * for example, to cope with PPP-over-ISDN captures - * with which the Ethereal developers have had to cope, - * heuristically trying to determine which of the - * oddball link-layer headers particular packets have). - * - * As such, we just punt, and run all PPP interfaces - * in cooked mode, if we can; otherwise, we just treat - * it as DLT_RAW, for now - if somebody needs to capture, - * on a 2.0[.x] kernel, on PPP devices that supply a - * link-layer header, they'll have to add code here to - * map to the appropriate DLT_ type (possibly adding a - * new DLT_ type, if necessary). - */ - if (cooked_ok) - handle->linktype = DLT_LINUX_SLL; - else { - /* - * XXX - handle ISDN types here? We can't fall - * back on cooked sockets, so we'd have to - * figure out from the device name what type of - * link-layer encapsulation it's using, and map - * that to an appropriate DLT_ value, meaning - * we'd map "isdnN" devices to DLT_RAW (they - * supply raw IP packets with no link-layer - * header) and "isdY" devices to a new DLT_I4L_IP - * type that has only an Ethernet packet type as - * a link-layer header. - * - * But sometimes we seem to get random crap - * in the link-layer header when capturing on - * ISDN devices.... - */ - handle->linktype = DLT_RAW; - } - break; - -#ifndef ARPHRD_CISCO -#define ARPHRD_CISCO 513 /* previously ARPHRD_HDLC */ -#endif - case ARPHRD_CISCO: - handle->linktype = DLT_C_HDLC; - break; - - /* Not sure if this is correct for all tunnels, but it - * works for CIPE */ - case ARPHRD_TUNNEL: -#ifndef ARPHRD_SIT -#define ARPHRD_SIT 776 /* From Linux 2.2.13 */ -#endif - case ARPHRD_SIT: - case ARPHRD_CSLIP: - case ARPHRD_SLIP6: - case ARPHRD_CSLIP6: - case ARPHRD_ADAPT: - case ARPHRD_SLIP: -#ifndef ARPHRD_RAWHDLC -#define ARPHRD_RAWHDLC 518 -#endif - case ARPHRD_RAWHDLC: -#ifndef ARPHRD_DLCI -#define ARPHRD_DLCI 15 -#endif - case ARPHRD_DLCI: - /* - * XXX - should some of those be mapped to DLT_LINUX_SLL - * instead? Should we just map all of them to DLT_LINUX_SLL? - */ - handle->linktype = DLT_RAW; - break; - -#ifndef ARPHRD_FRAD -#define ARPHRD_FRAD 770 -#endif - case ARPHRD_FRAD: - handle->linktype = DLT_FRELAY; - break; - - case ARPHRD_LOCALTLK: - handle->linktype = DLT_LTALK; - break; - -#ifndef ARPHRD_FCPP -#define ARPHRD_FCPP 784 -#endif - case ARPHRD_FCPP: -#ifndef ARPHRD_FCAL -#define ARPHRD_FCAL 785 -#endif - case ARPHRD_FCAL: -#ifndef ARPHRD_FCPL -#define ARPHRD_FCPL 786 -#endif - case ARPHRD_FCPL: -#ifndef ARPHRD_FCFABRIC -#define ARPHRD_FCFABRIC 787 -#endif - case ARPHRD_FCFABRIC: - /* - * We assume that those all mean RFC 2625 IP-over- - * Fibre Channel, with the RFC 2625 header at - * the beginning of the packet. - */ - handle->linktype = DLT_IP_OVER_FC; - break; - -#ifndef ARPHRD_IRDA -#define ARPHRD_IRDA 783 -#endif - case ARPHRD_IRDA: - /* Don't expect IP packet out of this interfaces... */ - handle->linktype = DLT_LINUX_IRDA; - /* We need to save packet direction for IrDA decoding, - * so let's use "Linux-cooked" mode. Jean II */ - //handle->md.cooked = 1; - break; - - /* ARPHRD_LAPD is unofficial and randomly allocated, if reallocation - * is needed, please report it to <daniele@orlandi.com> */ -#ifndef ARPHRD_LAPD -#define ARPHRD_LAPD 8445 -#endif - case ARPHRD_LAPD: - /* Don't expect IP packet out of this interfaces... */ - handle->linktype = DLT_LINUX_LAPD; - break; - - default: - handle->linktype = -1; - break; - } -} - -/* ===== Functions to interface to the newer kernels ================== */ - -/* - * Try to open a packet socket using the new kernel interface. - * Returns 0 on failure. - * FIXME: 0 uses to mean success (Sebastian) - */ -static int -live_open_new(pcap_t *handle, const char *device, int promisc, - int to_ms, char *ebuf) -{ -#ifdef HAVE_PF_PACKET_SOCKETS - int sock_fd = -1, arptype; - int err; - int fatal_err = 0; - struct packet_mreq mr; - - /* One shot loop used for error handling - bail out with break */ - - do { - /* - * Open a socket with protocol family packet. If a device is - * given we try to open it in raw mode otherwise we use - * the cooked interface. - */ - sock_fd = device ? - socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)) - : socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_ALL)); - - if (sock_fd == -1) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "socket: %s", - pcap_strerror(errno) ); - break; - } - - /* It seems the kernel supports the new interface. */ - handle->md.sock_packet = 0; - - /* - * Get the interface index of the loopback device. - * If the attempt fails, don't fail, just set the - * "md.lo_ifindex" to -1. - * - * XXX - can there be more than one device that loops - * packets back, i.e. devices other than "lo"? If so, - * we'd need to find them all, and have an array of - * indices for them, and check all of them in - * "pcap_read_packet()". - */ - handle->md.lo_ifindex = iface_get_id(sock_fd, "lo", ebuf); - - /* - * Default value for offset to align link-layer payload - * on a 4-byte boundary. - */ - handle->offset = 0; - - /* - * What kind of frames do we have to deal with? Fall back - * to cooked mode if we have an unknown interface type. - */ - - if (device) { - /* Assume for now we don't need cooked mode. */ - handle->md.cooked = 0; - - arptype = iface_get_arptype(sock_fd, device, ebuf); - if (arptype == -1) { - fatal_err = 1; - break; - } - map_arphrd_to_dlt(handle, arptype, 1); - if (handle->linktype == -1 || - handle->linktype == DLT_LINUX_SLL || - handle->linktype == DLT_LINUX_IRDA || - handle->linktype == DLT_LINUX_LAPD || - (handle->linktype == DLT_EN10MB && - (strncmp("isdn", device, 4) == 0 || - strncmp("isdY", device, 4) == 0))) { - /* - * Unknown interface type (-1), or a - * device we explicitly chose to run - * in cooked mode (e.g., PPP devices), - * or an ISDN device (whose link-layer - * type we can only determine by using - * APIs that may be different on different - * kernels) - reopen in cooked mode. - */ - if (close(sock_fd) == -1) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "close: %s", pcap_strerror(errno)); - break; - } - sock_fd = socket(PF_PACKET, SOCK_DGRAM, - htons(ETH_P_ALL)); - if (sock_fd == -1) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "socket: %s", pcap_strerror(errno)); - break; - } - handle->md.cooked = 1; - - /* - * Get rid of any link-layer type list - * we allocated - this only supports cooked - * capture. - */ - if (handle->dlt_list != NULL) { - free(handle->dlt_list); - handle->dlt_list = NULL; - handle->dlt_count = 0; - } - - if (handle->linktype == -1) { - /* - * Warn that we're falling back on - * cooked mode; we may want to - * update "map_arphrd_to_dlt()" - * to handle the new type. - */ - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "arptype %d not " - "supported by libpcap - " - "falling back to cooked " - "socket", - arptype); - } - /* IrDA capture is not a real "cooked" capture, - * it's IrLAP frames, not IP packets. */ - if (handle->linktype != DLT_LINUX_IRDA && - handle->linktype != DLT_LINUX_LAPD) - handle->linktype = DLT_LINUX_SLL; - } - - handle->md.ifindex = iface_get_id(sock_fd, device, ebuf); - if (handle->md.ifindex == -1) - break; - - if ((err = iface_bind(sock_fd, handle->md.ifindex, - ebuf)) < 0) { - if (err == -2) - fatal_err = 1; - break; - } - } else { - /* - * This is cooked mode. - */ - handle->md.cooked = 1; - handle->linktype = DLT_LINUX_SLL; - - /* - * We're not bound to a device. - * XXX - true? Or true only if we're using - * the "any" device? - * For now, we're using this as an indication - * that we can't transmit; stop doing that only - * if we figure out how to transmit in cooked - * mode. - */ - handle->md.ifindex = -1; - } - - /* - * Select promiscuous mode on if "promisc" is set. - * - * Do not turn allmulti mode on if we don't select - * promiscuous mode - on some devices (e.g., Orinoco - * wireless interfaces), allmulti mode isn't supported - * and the driver implements it by turning promiscuous - * mode on, and that screws up the operation of the - * card as a normal networking interface, and on no - * other platform I know of does starting a non- - * promiscuous capture affect which multicast packets - * are received by the interface. - */ - - /* - * Hmm, how can we set promiscuous mode on all interfaces? - * I am not sure if that is possible at all. - */ - - if (device && promisc) { - memset(&mr, 0, sizeof(mr)); - mr.mr_ifindex = handle->md.ifindex; - mr.mr_type = PACKET_MR_PROMISC; - if (setsockopt(sock_fd, SOL_PACKET, - PACKET_ADD_MEMBERSHIP, &mr, sizeof(mr)) == -1) - { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "setsockopt: %s", pcap_strerror(errno)); - break; - } - } - - /* Save the socket FD in the pcap structure */ - - handle->fd = sock_fd; - - return 1; - - } while(0); - - if (sock_fd != -1) - close(sock_fd); - - if (fatal_err) { - /* - * Get rid of any link-layer type list we allocated. - */ - if (handle->dlt_list != NULL) - free(handle->dlt_list); - return -2; - } else - return 0; -#else - strncpy(ebuf, - "New packet capturing interface not supported by build " - "environment", PCAP_ERRBUF_SIZE); - return 0; -#endif -} - -#ifdef HAVE_PF_PACKET_SOCKETS -/* - * Return the index of the given device name. Fill ebuf and return - * -1 on failure. - */ -static int -iface_get_id(int fd, const char *device, char *ebuf) -{ - struct ifreq ifr; - - memset(&ifr, 0, sizeof(ifr)); - strncpy(ifr.ifr_name, device, sizeof(ifr.ifr_name)); - - if (ioctl(fd, SIOCGIFINDEX, &ifr) == -1) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "SIOCGIFINDEX: %s", pcap_strerror(errno)); - return -1; - } - - return ifr.ifr_ifindex; -} - -/* - * Bind the socket associated with FD to the given device. - */ -static int -iface_bind(int fd, int ifindex, char *ebuf) -{ - struct sockaddr_ll sll; - int err; - socklen_t errlen = sizeof(err); - - memset(&sll, 0, sizeof(sll)); - sll.sll_family = AF_PACKET; - sll.sll_ifindex = ifindex; - sll.sll_protocol = htons(ETH_P_ALL); - - if (bind(fd, (struct sockaddr *) &sll, sizeof(sll)) == -1) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "bind: %s", pcap_strerror(errno)); - return -1; - } - - /* Any pending errors, e.g., network is down? */ - - if (getsockopt(fd, SOL_SOCKET, SO_ERROR, &err, &errlen) == -1) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "getsockopt: %s", pcap_strerror(errno)); - return -2; - } - - if (err > 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "bind: %s", pcap_strerror(err)); - return -2; - } - - return 0; -} - -#endif - - -/* ===== Functions to interface to the older kernels ================== */ - -/* - * With older kernels promiscuous mode is kind of interesting because we - * have to reset the interface before exiting. The problem can't really - * be solved without some daemon taking care of managing usage counts. - * If we put the interface into promiscuous mode, we set a flag indicating - * that we must take it out of that mode when the interface is closed, - * and, when closing the interface, if that flag is set we take it out - * of promiscuous mode. - */ - -/* - * List of pcaps for which we turned promiscuous mode on by hand. - * If there are any such pcaps, we arrange to call "pcap_close_all()" - * when we exit, and have it close all of them to turn promiscuous mode - * off. - */ -static struct pcap *pcaps_to_close; - -/* - * TRUE if we've already called "atexit()" to cause "pcap_close_all()" to - * be called on exit. - */ -static int did_atexit; - -static void pcap_close_all(void) -{ - struct pcap *handle; - - while ((handle = pcaps_to_close) != NULL) - pcap_close(handle); -} - -static void pcap_close_linux( pcap_t *handle ) -{ - struct pcap *p, *prevp; - struct ifreq ifr; - - if (handle->md.clear_promisc) { - /* - * We put the interface into promiscuous mode; take - * it out of promiscuous mode. - * - * XXX - if somebody else wants it in promiscuous mode, - * this code cannot know that, so it'll take it out - * of promiscuous mode. That's not fixable in 2.0[.x] - * kernels. - */ - memset(&ifr, 0, sizeof(ifr)); - strncpy(ifr.ifr_name, handle->md.device, sizeof(ifr.ifr_name)); - if (ioctl(handle->fd, SIOCGIFFLAGS, &ifr) == -1) { - fprintf(stderr, - "Can't restore interface flags (SIOCGIFFLAGS failed: %s).\n" - "Please adjust manually.\n" - "Hint: This can't happen with Linux >= 2.2.0.\n", - strerror(errno)); - } else { - if (ifr.ifr_flags & IFF_PROMISC) { - /* - * Promiscuous mode is currently on; turn it - * off. - */ - ifr.ifr_flags &= ~IFF_PROMISC; - if (ioctl(handle->fd, SIOCSIFFLAGS, &ifr) == -1) { - fprintf(stderr, - "Can't restore interface flags (SIOCSIFFLAGS failed: %s).\n" - "Please adjust manually.\n" - "Hint: This can't happen with Linux >= 2.2.0.\n", - strerror(errno)); - } - } - } - - /* - * Take this pcap out of the list of pcaps for which we - * have to take the interface out of promiscuous mode. - */ - for (p = pcaps_to_close, prevp = NULL; p != NULL; - prevp = p, p = p->md.next) { - if (p == handle) { - /* - * Found it. Remove it from the list. - */ - if (prevp == NULL) { - /* - * It was at the head of the list. - */ - pcaps_to_close = p->md.next; - } else { - /* - * It was in the middle of the list. - */ - prevp->md.next = p->md.next; - } - break; - } - } - } - - if (handle->md.device != NULL) - free(handle->md.device); - handle->md.device = NULL; - pcap_close_common(handle); -} - -/* - * Try to open a packet socket using the old kernel interface. - * Returns 0 on failure. - * FIXME: 0 uses to mean success (Sebastian) - */ -static int -live_open_old(pcap_t *handle, const char *device, int promisc, - int to_ms, char *ebuf) -{ - int arptype; - struct ifreq ifr; - - do { - /* Open the socket */ - - handle->fd = socket(PF_INET, SOCK_PACKET, htons(ETH_P_ALL)); - if (handle->fd == -1) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "socket: %s", pcap_strerror(errno)); - break; - } - - /* It worked - we are using the old interface */ - handle->md.sock_packet = 1; - - /* ...which means we get the link-layer header. */ - handle->md.cooked = 0; - - /* Bind to the given device */ - - if (!device) { - strncpy(ebuf, "pcap_open_live: The \"any\" device isn't supported on 2.0[.x]-kernel systems", - PCAP_ERRBUF_SIZE); - break; - } - if (iface_bind_old(handle->fd, device, ebuf) == -1) - break; - - /* - * Try to get the link-layer type. - */ - arptype = iface_get_arptype(handle->fd, device, ebuf); - if (arptype == -1) - break; - - /* - * Try to find the DLT_ type corresponding to that - * link-layer type. - */ - map_arphrd_to_dlt(handle, arptype, 0); - if (handle->linktype == -1) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "unknown arptype %d", arptype); - break; - } - - /* Go to promisc mode if requested */ - - if (promisc) { - memset(&ifr, 0, sizeof(ifr)); - strncpy(ifr.ifr_name, device, sizeof(ifr.ifr_name)); - if (ioctl(handle->fd, SIOCGIFFLAGS, &ifr) == -1) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "SIOCGIFFLAGS: %s", pcap_strerror(errno)); - break; - } - if ((ifr.ifr_flags & IFF_PROMISC) == 0) { - /* - * Promiscuous mode isn't currently on, - * so turn it on, and remember that - * we should turn it off when the - * pcap_t is closed. - */ - - /* - * If we haven't already done so, arrange - * to have "pcap_close_all()" called when - * we exit. - */ - if (!did_atexit) { - if (atexit(pcap_close_all) == -1) { - /* - * "atexit()" failed; don't - * put the interface in - * promiscuous mode, just - * give up. - */ - strncpy(ebuf, "atexit failed", - PCAP_ERRBUF_SIZE); - break; - } - did_atexit = 1; - } - - ifr.ifr_flags |= IFF_PROMISC; - if (ioctl(handle->fd, SIOCSIFFLAGS, &ifr) == -1) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "SIOCSIFFLAGS: %s", - pcap_strerror(errno)); - break; - } - handle->md.clear_promisc = 1; - - /* - * Add this to the list of pcaps - * to close when we exit. - */ - handle->md.next = pcaps_to_close; - pcaps_to_close = handle; - } - } - - /* - * Default value for offset to align link-layer payload - * on a 4-byte boundary. - */ - handle->offset = 0; - - return 1; - - } while (0); - - pcap_close_linux(handle); - return 0; -} - -/* - * Bind the socket associated with FD to the given device using the - * interface of the old kernels. - */ -static int -iface_bind_old(int fd, const char *device, char *ebuf) -{ - struct sockaddr saddr; - int err; - socklen_t errlen = sizeof(err); - - memset(&saddr, 0, sizeof(saddr)); - strncpy(saddr.sa_data, device, sizeof(saddr.sa_data)); - if (bind(fd, &saddr, sizeof(saddr)) == -1) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "bind: %s", pcap_strerror(errno)); - return -1; - } - - /* Any pending errors, e.g., network is down? */ - - if (getsockopt(fd, SOL_SOCKET, SO_ERROR, &err, &errlen) == -1) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "getsockopt: %s", pcap_strerror(errno)); - return -1; - } - - if (err > 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "bind: %s", pcap_strerror(err)); - return -1; - } - - return 0; -} - - -/* ===== System calls available on all supported kernels ============== */ - -/* - * Query the kernel for the MTU of the given interface. - */ -static int -iface_get_mtu(int fd, const char *device, char *ebuf) -{ - struct ifreq ifr; - - if (!device) - return BIGGER_THAN_ALL_MTUS; - - memset(&ifr, 0, sizeof(ifr)); - strncpy(ifr.ifr_name, device, sizeof(ifr.ifr_name)); - - if (ioctl(fd, SIOCGIFMTU, &ifr) == -1) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "SIOCGIFMTU: %s", pcap_strerror(errno)); - return -1; - } - - return ifr.ifr_mtu; -} - -/* - * Get the hardware type of the given interface as ARPHRD_xxx constant. - */ -static int -iface_get_arptype(int fd, const char *device, char *ebuf) -{ - struct ifreq ifr; - - memset(&ifr, 0, sizeof(ifr)); - strncpy(ifr.ifr_name, device, sizeof(ifr.ifr_name)); - - if (ioctl(fd, SIOCGIFHWADDR, &ifr) == -1) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "SIOCGIFHWADDR: %s", pcap_strerror(errno)); - return -1; - } - - return ifr.ifr_hwaddr.sa_family; -} - -#ifdef SO_ATTACH_FILTER -static int -fix_program(pcap_t *handle, struct sock_fprog *fcode) -{ - size_t prog_size; - register int i; - register struct bpf_insn *p; - struct bpf_insn *f; - int len; - - /* - * Make a copy of the filter, and modify that copy if - * necessary. - */ - prog_size = sizeof(*handle->fcode.bf_insns) * handle->fcode.bf_len; - len = handle->fcode.bf_len; - f = (struct bpf_insn *)malloc(prog_size); - if (f == NULL) { - snprintf(handle->errbuf, sizeof(handle->errbuf), - "malloc: %s", pcap_strerror(errno)); - return -1; - } - memcpy(f, handle->fcode.bf_insns, prog_size); - fcode->len = len; - fcode->filter = (struct sock_filter *) f; - - for (i = 0; i < len; ++i) { - p = &f[i]; - /* - * What type of instruction is this? - */ - switch (BPF_CLASS(p->code)) { - - case BPF_RET: - /* - * It's a return instruction; is the snapshot - * length a constant, rather than the contents - * of the accumulator? - */ - if (BPF_MODE(p->code) == BPF_K) { - /* - * Yes - if the value to be returned, - * i.e. the snapshot length, is anything - * other than 0, make it 65535, so that - * the packet is truncated by "recvfrom()", - * not by the filter. - * - * XXX - there's nothing we can easily do - * if it's getting the value from the - * accumulator; we'd have to insert - * code to force non-zero values to be - * 65535. - */ - if (p->k != 0) - p->k = 65535; - } - break; - - case BPF_LD: - case BPF_LDX: - /* - * It's a load instruction; is it loading - * from the packet? - */ - switch (BPF_MODE(p->code)) { - - case BPF_ABS: - case BPF_IND: - case BPF_MSH: - /* - * Yes; are we in cooked mode? - */ - if (handle->md.cooked) { - /* - * Yes, so we need to fix this - * instruction. - */ - if (fix_offset(p) < 0) { - /* - * We failed to do so. - * Return 0, so our caller - * knows to punt to userland. - */ - return 0; - } - } - break; - } - break; - } - } - return 1; /* we succeeded */ -} - -static int -fix_offset(struct bpf_insn *p) -{ - /* - * What's the offset? - */ - if (p->k >= SLL_HDR_LEN) { - /* - * It's within the link-layer payload; that starts at an - * offset of 0, as far as the kernel packet filter is - * concerned, so subtract the length of the link-layer - * header. - */ - p->k -= SLL_HDR_LEN; - } else if (p->k == 14) { - /* - * It's the protocol field; map it to the special magic - * kernel offset for that field. - */ - p->k = SKF_AD_OFF + SKF_AD_PROTOCOL; - } else { - /* - * It's within the header, but it's not one of those - * fields; we can't do that in the kernel, so punt - * to userland. - */ - return -1; - } - return 0; -} - -static int -set_kernel_filter(pcap_t *handle, struct sock_fprog *fcode) -{ - int total_filter_on = 0; - int save_mode; - int ret; - int save_errno; - - /* - * The socket filter code doesn't discard all packets queued - * up on the socket when the filter is changed; this means - * that packets that don't match the new filter may show up - * after the new filter is put onto the socket, if those - * packets haven't yet been read. - * - * This means, for example, that if you do a tcpdump capture - * with a filter, the first few packets in the capture might - * be packets that wouldn't have passed the filter. - * - * We therefore discard all packets queued up on the socket - * when setting a kernel filter. (This isn't an issue for - * userland filters, as the userland filtering is done after - * packets are queued up.) - * - * To flush those packets, we put the socket in read-only mode, - * and read packets from the socket until there are no more to - * read. - * - * In order to keep that from being an infinite loop - i.e., - * to keep more packets from arriving while we're draining - * the queue - we put the "total filter", which is a filter - * that rejects all packets, onto the socket before draining - * the queue. - * - * This code deliberately ignores any errors, so that you may - * get bogus packets if an error occurs, rather than having - * the filtering done in userland even if it could have been - * done in the kernel. - */ - if (setsockopt(handle->fd, SOL_SOCKET, SO_ATTACH_FILTER, - &total_fcode, sizeof(total_fcode)) == 0) { - char drain[1]; - - /* - * Note that we've put the total filter onto the socket. - */ - total_filter_on = 1; - - /* - * Save the socket's current mode, and put it in - * non-blocking mode; we drain it by reading packets - * until we get an error (which is normally a - * "nothing more to be read" error). - */ - save_mode = fcntl(handle->fd, F_GETFL, 0); - if (save_mode != -1 && - fcntl(handle->fd, F_SETFL, save_mode | O_NONBLOCK) >= 0) { - while (recv(handle->fd, &drain, sizeof drain, - MSG_TRUNC) >= 0) - ; - save_errno = errno; - fcntl(handle->fd, F_SETFL, save_mode); - if (save_errno != EAGAIN) { - /* Fatal error */ - reset_kernel_filter(handle); - snprintf(handle->errbuf, sizeof(handle->errbuf), - "recv: %s", pcap_strerror(save_errno)); - return -2; - } - } - } - - /* - * Now attach the new filter. - */ - ret = setsockopt(handle->fd, SOL_SOCKET, SO_ATTACH_FILTER, - fcode, sizeof(*fcode)); - if (ret == -1 && total_filter_on) { - /* - * Well, we couldn't set that filter on the socket, - * but we could set the total filter on the socket. - * - * This could, for example, mean that the filter was - * too big to put into the kernel, so we'll have to - * filter in userland; in any case, we'll be doing - * filtering in userland, so we need to remove the - * total filter so we see packets. - */ - save_errno = errno; - - /* - * XXX - if this fails, we're really screwed; - * we have the total filter on the socket, - * and it won't come off. What do we do then? - */ - reset_kernel_filter(handle); - - errno = save_errno; - } - return ret; -} - -static int -reset_kernel_filter(pcap_t *handle) -{ - /* - * setsockopt() barfs unless it get a dummy parameter. - * valgrind whines unless the value is initialized, - * as it has no idea that setsockopt() ignores its - * parameter. - */ - int dummy = 0; - - return setsockopt(handle->fd, SOL_SOCKET, SO_DETACH_FILTER, - &dummy, sizeof(dummy)); -} -#endif diff --git a/contrib/libpcap/pcap-namedb.h b/contrib/libpcap/pcap-namedb.h deleted file mode 100644 index acaabd9..0000000 --- a/contrib/libpcap/pcap-namedb.h +++ /dev/null @@ -1,89 +0,0 @@ -/* - * Copyright (c) 1994, 1996 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the Computer Systems - * Engineering Group at Lawrence Berkeley Laboratory. - * 4. Neither the name of the University nor of the Laboratory may be used - * to endorse or promote products derived from this software without - * specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#) $Header: /tcpdump/master/libpcap/pcap-namedb.h,v 1.10.2.1 2005/04/19 04:26:08 guy Exp $ (LBL) - */ - -#ifndef lib_pcap_namedb_h -#define lib_pcap_namedb_h - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * As returned by the pcap_next_etherent() - * XXX this stuff doesn't belong in this interface, but this - * library already must do name to address translation, so - * on systems that don't have support for /etc/ethers, we - * export these hooks since they'll - */ -struct pcap_etherent { - u_char addr[6]; - char name[122]; -}; -#ifndef PCAP_ETHERS_FILE -#define PCAP_ETHERS_FILE "/etc/ethers" -#endif -struct pcap_etherent *pcap_next_etherent(FILE *); -u_char *pcap_ether_hostton(const char*); -u_char *pcap_ether_aton(const char *); - -bpf_u_int32 **pcap_nametoaddr(const char *); -#ifdef INET6 -struct addrinfo *pcap_nametoaddrinfo(const char *); -#endif -bpf_u_int32 pcap_nametonetaddr(const char *); - -int pcap_nametoport(const char *, int *, int *); -int pcap_nametoportrange(const char *, int *, int *, int *); -int pcap_nametoproto(const char *); -int pcap_nametoeproto(const char *); -int pcap_nametollc(const char *); -/* - * If a protocol is unknown, PROTO_UNDEF is returned. - * Also, pcap_nametoport() returns the protocol along with the port number. - * If there are ambiguous entried in /etc/services (i.e. domain - * can be either tcp or udp) PROTO_UNDEF is returned. - */ -#define PROTO_UNDEF -1 - -/* XXX move these to pcap-int.h? */ -int __pcap_atodn(const char *, bpf_u_int32 *); -int __pcap_atoin(const char *, bpf_u_int32 *); -u_short __pcap_nametodnaddr(const char *); - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/contrib/libpcap/pcap-nit.c b/contrib/libpcap/pcap-nit.c deleted file mode 100644 index 94c4528..0000000 --- a/contrib/libpcap/pcap-nit.c +++ /dev/null @@ -1,356 +0,0 @@ -/* - * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/pcap-nit.c,v 1.57.2.1 2005/05/03 18:54:37 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <sys/types.h> -#include <sys/time.h> -#include <sys/timeb.h> -#include <sys/file.h> -#include <sys/ioctl.h> -#include <sys/socket.h> - -#include <net/if.h> -#include <net/nit.h> - -#include <netinet/in.h> -#include <netinet/in_systm.h> -#include <netinet/ip.h> -#include <netinet/if_ether.h> -#include <netinet/ip_var.h> -#include <netinet/udp.h> -#include <netinet/udp_var.h> -#include <netinet/tcp.h> -#include <netinet/tcpip.h> - -#include <ctype.h> -#include <errno.h> -#include <stdio.h> - -#include "pcap-int.h" - -#ifdef HAVE_OS_PROTO_H -#include "os-proto.h" -#endif - -/* - * The chunk size for NIT. This is the amount of buffering - * done for read calls. - */ -#define CHUNKSIZE (2*1024) - -/* - * The total buffer space used by NIT. - */ -#define BUFSPACE (4*CHUNKSIZE) - -/* Forwards */ -static int nit_setflags(int, int, int, char *); - -static int -pcap_stats_nit(pcap_t *p, struct pcap_stat *ps) -{ - - /* - * "ps_recv" counts packets handed to the filter, not packets - * that passed the filter. As filtering is done in userland, - * this does not include packets dropped because we ran out - * of buffer space. - * - * "ps_drop" presumably counts packets dropped by the socket - * because of flow control requirements or resource exhaustion; - * it doesn't count packets dropped by the interface driver. - * As filtering is done in userland, it counts packets regardless - * of whether they would've passed the filter. - * - * These statistics don't include packets not yet read from the - * kernel by libpcap or packets not yet read from libpcap by the - * application. - */ - *ps = p->md.stat; - return (0); -} - -static int -pcap_read_nit(pcap_t *p, int cnt, pcap_handler callback, u_char *user) -{ - register int cc, n; - register struct bpf_insn *fcode = p->fcode.bf_insns; - register u_char *bp, *cp, *ep; - register struct nit_hdr *nh; - register int caplen; - - cc = p->cc; - if (cc == 0) { - cc = read(p->fd, (char *)p->buffer, p->bufsize); - if (cc < 0) { - if (errno == EWOULDBLOCK) - return (0); - snprintf(p->errbuf, sizeof(p->errbuf), "pcap_read: %s", - pcap_strerror(errno)); - return (-1); - } - bp = p->buffer; - } else - bp = p->bp; - - /* - * Loop through each packet. The increment expression - * rounds up to the next int boundary past the end of - * the previous packet. - */ - n = 0; - ep = bp + cc; - while (bp < ep) { - /* - * Has "pcap_breakloop()" been called? - * If so, return immediately - if we haven't read any - * packets, clear the flag and return -2 to indicate - * that we were told to break out of the loop, otherwise - * leave the flag set, so that the *next* call will break - * out of the loop without having read any packets, and - * return the number of packets we've processed so far. - */ - if (p->break_loop) { - if (n == 0) { - p->break_loop = 0; - return (-2); - } else { - p->cc = ep - bp; - p->bp = bp; - return (n); - } - } - - nh = (struct nit_hdr *)bp; - cp = bp + sizeof(*nh); - - switch (nh->nh_state) { - - case NIT_CATCH: - break; - - case NIT_NOMBUF: - case NIT_NOCLUSTER: - case NIT_NOSPACE: - p->md.stat.ps_drop = nh->nh_dropped; - continue; - - case NIT_SEQNO: - continue; - - default: - snprintf(p->errbuf, sizeof(p->errbuf), - "bad nit state %d", nh->nh_state); - return (-1); - } - ++p->md.stat.ps_recv; - bp += ((sizeof(struct nit_hdr) + nh->nh_datalen + - sizeof(int) - 1) & ~(sizeof(int) - 1)); - - caplen = nh->nh_wirelen; - if (caplen > p->snapshot) - caplen = p->snapshot; - if (bpf_filter(fcode, cp, nh->nh_wirelen, caplen)) { - struct pcap_pkthdr h; - h.ts = nh->nh_timestamp; - h.len = nh->nh_wirelen; - h.caplen = caplen; - (*callback)(user, &h, cp); - if (++n >= cnt && cnt >= 0) { - p->cc = ep - bp; - p->bp = bp; - return (n); - } - } - } - p->cc = 0; - return (n); -} - -static int -pcap_inject_nit(pcap_t *p, const void *buf, size_t size) -{ - struct sockaddr sa; - int ret; - - memset(&sa, 0, sizeof(sa)); - strncpy(sa.sa_data, device, sizeof(sa.sa_data)); - ret = sendto(p->fd, buf, size, 0, &sa, sizeof(sa)); - if (ret == -1) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "send: %s", - pcap_strerror(errno)); - return (-1); - } - return (ret); -} - -static int -nit_setflags(int fd, int promisc, int to_ms, char *ebuf) -{ - struct nit_ioc nioc; - - memset(&nioc, 0, sizeof(nioc)); - nioc.nioc_bufspace = BUFSPACE; - nioc.nioc_chunksize = CHUNKSIZE; - nioc.nioc_typetomatch = NT_ALLTYPES; - nioc.nioc_snaplen = p->snapshot; - nioc.nioc_bufalign = sizeof(int); - nioc.nioc_bufoffset = 0; - - if (to_ms != 0) { - nioc.nioc_flags |= NF_TIMEOUT; - nioc.nioc_timeout.tv_sec = to_ms / 1000; - nioc.nioc_timeout.tv_usec = (to_ms * 1000) % 1000000; - } - if (promisc) - nioc.nioc_flags |= NF_PROMISC; - - if (ioctl(fd, SIOCSNIT, &nioc) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "SIOCSNIT: %s", - pcap_strerror(errno)); - return (-1); - } - return (0); -} - -static void -pcap_close_nit(pcap_t *p) -{ - pcap_close_common(p); - if (p->device != NULL) - free(p->device); -} - -pcap_t * -pcap_open_live(const char *device, int snaplen, int promisc, int to_ms, - char *ebuf) -{ - int fd; - struct sockaddr_nit snit; - register pcap_t *p; - - p = (pcap_t *)malloc(sizeof(*p)); - if (p == NULL) { - strlcpy(ebuf, pcap_strerror(errno), PCAP_ERRBUF_SIZE); - return (NULL); - } - - if (snaplen < 96) - /* - * NIT requires a snapshot length of at least 96. - */ - snaplen = 96; - - memset(p, 0, sizeof(*p)); - p->fd = fd = socket(AF_NIT, SOCK_RAW, NITPROTO_RAW); - if (fd < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "socket: %s", pcap_strerror(errno)); - goto bad; - } - snit.snit_family = AF_NIT; - (void)strncpy(snit.snit_ifname, device, NITIFSIZ); - - if (bind(fd, (struct sockaddr *)&snit, sizeof(snit))) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "bind: %s: %s", snit.snit_ifname, pcap_strerror(errno)); - goto bad; - } - p->snapshot = snaplen; - nit_setflags(p->fd, promisc, to_ms, ebuf); - - /* - * NIT supports only ethernets. - */ - p->linktype = DLT_EN10MB; - - p->bufsize = BUFSPACE; - p->buffer = (u_char *)malloc(p->bufsize); - if (p->buffer == NULL) { - strlcpy(ebuf, pcap_strerror(errno), PCAP_ERRBUF_SIZE); - goto bad; - } - - /* - * We need the device name in order to send packets. - */ - p->device = strdup(device); - if (p->device == NULL) { - strlcpy(ebuf, pcap_strerror(errno), PCAP_ERRBUF_SIZE); - free(p->buffer); - goto bad; - } - - /* - * "p->fd" is a socket, so "select()" should work on it. - */ - p->selectable_fd = p->fd; - - /* - * This is (presumably) a real Ethernet capture; give it a - * link-layer-type list with DLT_EN10MB and DLT_DOCSIS, so - * that an application can let you choose it, in case you're - * capturing DOCSIS traffic that a Cisco Cable Modem - * Termination System is putting out onto an Ethernet (it - * doesn't put an Ethernet header onto the wire, it puts raw - * DOCSIS frames out on the wire inside the low-level - * Ethernet framing). - */ - p->dlt_list = (u_int *) malloc(sizeof(u_int) * 2); - /* - * If that fails, just leave the list empty. - */ - if (p->dlt_list != NULL) { - p->dlt_list[0] = DLT_EN10MB; - p->dlt_list[1] = DLT_DOCSIS; - p->dlt_count = 2; - } - - p->read_op = pcap_read_nit; - p->inject_op = pcap_inject_nit; - p->setfilter_op = install_bpf_program; /* no kernel filtering */ - p->setdirection_op = NULL; /* Not implemented. */ - p->set_datalink_op = NULL; /* can't change data link type */ - p->getnonblock_op = pcap_getnonblock_fd; - p->setnonblock_op = pcap_setnonblock_fd; - p->stats_op = pcap_stats_nit; - p->close_op = pcap_close_nit; - - return (p); - bad: - if (fd >= 0) - close(fd); - free(p); - return (NULL); -} - -int -pcap_platform_finddevs(pcap_if_t **alldevsp, char *errbuf) -{ - return (0); -} diff --git a/contrib/libpcap/pcap-nit.h b/contrib/libpcap/pcap-nit.h deleted file mode 100644 index 52f5fc4..0000000 --- a/contrib/libpcap/pcap-nit.h +++ /dev/null @@ -1,19 +0,0 @@ -/* - * Copyright (c) 1990, 1994 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms are permitted - * provided that the above copyright notice and this paragraph are - * duplicated in all such forms and that any documentation, - * advertising materials, and other materials related to such - * distribution and use acknowledge that the software was developed - * by the University of California, Lawrence Berkeley Laboratory, - * Berkeley, CA. The name of the University may not be used to - * endorse or promote products derived from this software without - * specific prior written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED - * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * @(#) $Header: /tcpdump/master/libpcap/pcap-nit.h,v 1.2.1.1 1999/10/07 23:46:40 mcr Exp $ (LBL) - */ diff --git a/contrib/libpcap/pcap-null.c b/contrib/libpcap/pcap-null.c deleted file mode 100644 index 06e3ab3..0000000 --- a/contrib/libpcap/pcap-null.c +++ /dev/null @@ -1,54 +0,0 @@ -/* - * Copyright (c) 1994, 1995, 1996 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/pcap-null.c,v 1.21 2003/11/15 23:24:03 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <sys/param.h> /* optionally get BSD define */ - -#include <string.h> - -#ifdef HAVE_OS_PROTO_H -#include "os-proto.h" -#endif - -#include "pcap-int.h" - -static char nosup[] = "live packet capture not supported on this system"; - -pcap_t * -pcap_open_live(const char *device, int snaplen, int promisc, int to_ms, - char *ebuf) -{ - (void)strlcpy(ebuf, nosup, PCAP_ERRBUF_SIZE); - return (NULL); -} - -int -pcap_platform_finddevs(pcap_if_t **alldevsp, char *errbuf) -{ - return (0); -} diff --git a/contrib/libpcap/pcap-pf.c b/contrib/libpcap/pcap-pf.c deleted file mode 100644 index e733540..0000000 --- a/contrib/libpcap/pcap-pf.c +++ /dev/null @@ -1,610 +0,0 @@ -/* - * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * packet filter subroutines for tcpdump - * Extraction/creation by Jeffrey Mogul, DECWRL - */ - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/pcap-pf.c,v 1.91.2.2 2005/05/03 18:54:37 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <sys/types.h> -#include <sys/time.h> -#include <sys/timeb.h> -#include <sys/socket.h> -#include <sys/file.h> -#include <sys/ioctl.h> -#include <net/pfilt.h> - -struct mbuf; -struct rtentry; -#include <net/if.h> - -#include <netinet/in.h> -#include <netinet/in_systm.h> -#include <netinet/ip.h> -#include <netinet/if_ether.h> -#include <netinet/ip_var.h> -#include <netinet/udp.h> -#include <netinet/udp_var.h> -#include <netinet/tcp.h> -#include <netinet/tcpip.h> - -#include <ctype.h> -#include <errno.h> -#include <netdb.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -/* - * Make "pcap.h" not include "pcap-bpf.h"; we are going to include the - * native OS version, as we need various BPF ioctls from it. - */ -#define PCAP_DONT_INCLUDE_PCAP_BPF_H -#include <net/bpf.h> - -#include "pcap-int.h" - -#ifdef HAVE_OS_PROTO_H -#include "os-proto.h" -#endif - -static int pcap_setfilter_pf(pcap_t *, struct bpf_program *); - -/* - * BUFSPACE is the size in bytes of the packet read buffer. Most tcpdump - * applications aren't going to need more than 200 bytes of packet header - * and the read shouldn't return more packets than packetfilter's internal - * queue limit (bounded at 256). - */ -#define BUFSPACE (200 * 256) - -static int -pcap_read_pf(pcap_t *pc, int cnt, pcap_handler callback, u_char *user) -{ - register u_char *p, *bp; - struct bpf_insn *fcode; - register int cc, n, buflen, inc; - register struct enstamp *sp; -#ifdef LBL_ALIGN - struct enstamp stamp; -#endif -#ifdef PCAP_FDDIPAD - register int pad; -#endif - - fcode = pc->md.use_bpf ? NULL : pc->fcode.bf_insns; - again: - cc = pc->cc; - if (cc == 0) { - cc = read(pc->fd, (char *)pc->buffer + pc->offset, pc->bufsize); - if (cc < 0) { - if (errno == EWOULDBLOCK) - return (0); - if (errno == EINVAL && - lseek(pc->fd, 0L, SEEK_CUR) + pc->bufsize < 0) { - /* - * Due to a kernel bug, after 2^31 bytes, - * the kernel file offset overflows and - * read fails with EINVAL. The lseek() - * to 0 will fix things. - */ - (void)lseek(pc->fd, 0L, SEEK_SET); - goto again; - } - snprintf(pc->errbuf, sizeof(pc->errbuf), "pf read: %s", - pcap_strerror(errno)); - return (-1); - } - bp = pc->buffer + pc->offset; - } else - bp = pc->bp; - /* - * Loop through each packet. - */ - n = 0; -#ifdef PCAP_FDDIPAD - pad = pc->fddipad; -#endif - while (cc > 0) { - /* - * Has "pcap_breakloop()" been called? - * If so, return immediately - if we haven't read any - * packets, clear the flag and return -2 to indicate - * that we were told to break out of the loop, otherwise - * leave the flag set, so that the *next* call will break - * out of the loop without having read any packets, and - * return the number of packets we've processed so far. - */ - if (pc->break_loop) { - if (n == 0) { - pc->break_loop = 0; - return (-2); - } else { - pc->cc = cc; - pc->bp = bp; - return (n); - } - } - if (cc < sizeof(*sp)) { - snprintf(pc->errbuf, sizeof(pc->errbuf), - "pf short read (%d)", cc); - return (-1); - } -#ifdef LBL_ALIGN - if ((long)bp & 3) { - sp = &stamp; - memcpy((char *)sp, (char *)bp, sizeof(*sp)); - } else -#endif - sp = (struct enstamp *)bp; - if (sp->ens_stamplen != sizeof(*sp)) { - snprintf(pc->errbuf, sizeof(pc->errbuf), - "pf short stamplen (%d)", - sp->ens_stamplen); - return (-1); - } - - p = bp + sp->ens_stamplen; - buflen = sp->ens_count; - if (buflen > pc->snapshot) - buflen = pc->snapshot; - - /* Calculate inc before possible pad update */ - inc = ENALIGN(buflen + sp->ens_stamplen); - cc -= inc; - bp += inc; - pc->md.TotPkts++; - pc->md.TotDrops += sp->ens_dropped; - pc->md.TotMissed = sp->ens_ifoverflows; - if (pc->md.OrigMissed < 0) - pc->md.OrigMissed = pc->md.TotMissed; - - /* - * Short-circuit evaluation: if using BPF filter - * in kernel, no need to do it now. - * -#ifdef PCAP_FDDIPAD - * Note: the filter code was generated assuming - * that pc->fddipad was the amount of padding - * before the header, as that's what's required - * in the kernel, so we run the filter before - * skipping that padding. -#endif - */ - if (fcode == NULL || - bpf_filter(fcode, p, sp->ens_count, buflen)) { - struct pcap_pkthdr h; - pc->md.TotAccepted++; - h.ts = sp->ens_tstamp; -#ifdef PCAP_FDDIPAD - h.len = sp->ens_count - pad; -#else - h.len = sp->ens_count; -#endif -#ifdef PCAP_FDDIPAD - p += pad; - buflen -= pad; -#endif - h.caplen = buflen; - (*callback)(user, &h, p); - if (++n >= cnt && cnt > 0) { - pc->cc = cc; - pc->bp = bp; - return (n); - } - } - } - pc->cc = 0; - return (n); -} - -static int -pcap_inject_pf(pcap_t *p, const void *buf, size_t size) -{ - int ret; - - ret = write(p->fd, buf, size); - if (ret == -1) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "send: %s", - pcap_strerror(errno)); - return (-1); - } - return (ret); -} - -static int -pcap_stats_pf(pcap_t *p, struct pcap_stat *ps) -{ - - /* - * If packet filtering is being done in the kernel: - * - * "ps_recv" counts only packets that passed the filter. - * This does not include packets dropped because we - * ran out of buffer space. (XXX - perhaps it should, - * by adding "ps_drop" to "ps_recv", for compatibility - * with some other platforms. On the other hand, on - * some platforms "ps_recv" counts only packets that - * passed the filter, and on others it counts packets - * that didn't pass the filter....) - * - * "ps_drop" counts packets that passed the kernel filter - * (if any) but were dropped because the input queue was - * full. - * - * "ps_ifdrop" counts packets dropped by the network - * inteface (regardless of whether they would have passed - * the input filter, of course). - * - * If packet filtering is not being done in the kernel: - * - * "ps_recv" counts only packets that passed the filter. - * - * "ps_drop" counts packets that were dropped because the - * input queue was full, regardless of whether they passed - * the userland filter. - * - * "ps_ifdrop" counts packets dropped by the network - * inteface (regardless of whether they would have passed - * the input filter, of course). - * - * These statistics don't include packets not yet read from - * the kernel by libpcap, but they may include packets not - * yet read from libpcap by the application. - */ - ps->ps_recv = p->md.TotAccepted; - ps->ps_drop = p->md.TotDrops; - ps->ps_ifdrop = p->md.TotMissed - p->md.OrigMissed; - return (0); -} - -/* - * We include the OS's <net/bpf.h>, not our "pcap-bpf.h", so we probably - * don't get DLT_DOCSIS defined. - */ -#ifndef DLT_DOCSIS -#define DLT_DOCSIS 143 -#endif - -pcap_t * -pcap_open_live(const char *device, int snaplen, int promisc, int to_ms, - char *ebuf) -{ - pcap_t *p; - short enmode; - int backlog = -1; /* request the most */ - struct enfilter Filter; - struct endevp devparams; - - p = (pcap_t *)malloc(sizeof(*p)); - if (p == NULL) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "pcap_open_live: %s", pcap_strerror(errno)); - return (0); - } - memset(p, 0, sizeof(*p)); - /* - * Initially try a read/write open (to allow the inject - * method to work). If that fails due to permission - * issues, fall back to read-only. This allows a - * non-root user to be granted specific access to pcap - * capabilities via file permissions. - * - * XXX - we should have an API that has a flag that - * controls whether to open read-only or read-write, - * so that denial of permission to send (or inability - * to send, if sending packets isn't supported on - * the device in question) can be indicated at open - * time. - * - * XXX - we assume here that "pfopen()" does not, in fact, modify - * its argument, even though it takes a "char *" rather than a - * "const char *" as its first argument. That appears to be - * the case, at least on Digital UNIX 4.0. - */ - p->fd = pfopen(device, O_RDWR); - if (p->fd == -1 && errno == EACCES) - p->fd = pfopen(device, O_RDONLY); - if (p->fd < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "pf open: %s: %s\n\ -your system may not be properly configured; see the packetfilter(4) man page\n", - device, pcap_strerror(errno)); - goto bad; - } - p->md.OrigMissed = -1; - enmode = ENTSTAMP|ENBATCH|ENNONEXCL; - if (promisc) - enmode |= ENPROMISC; - if (ioctl(p->fd, EIOCMBIS, (caddr_t)&enmode) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "EIOCMBIS: %s", - pcap_strerror(errno)); - goto bad; - } -#ifdef ENCOPYALL - /* Try to set COPYALL mode so that we see packets to ourself */ - enmode = ENCOPYALL; - (void)ioctl(p->fd, EIOCMBIS, (caddr_t)&enmode);/* OK if this fails */ -#endif - /* set the backlog */ - if (ioctl(p->fd, EIOCSETW, (caddr_t)&backlog) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "EIOCSETW: %s", - pcap_strerror(errno)); - goto bad; - } - /* discover interface type */ - if (ioctl(p->fd, EIOCDEVP, (caddr_t)&devparams) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "EIOCDEVP: %s", - pcap_strerror(errno)); - goto bad; - } - /* HACK: to compile prior to Ultrix 4.2 */ -#ifndef ENDT_FDDI -#define ENDT_FDDI 4 -#endif - switch (devparams.end_dev_type) { - - case ENDT_10MB: - p->linktype = DLT_EN10MB; - p->offset = 2; - /* - * This is (presumably) a real Ethernet capture; give it a - * link-layer-type list with DLT_EN10MB and DLT_DOCSIS, so - * that an application can let you choose it, in case you're - * capturing DOCSIS traffic that a Cisco Cable Modem - * Termination System is putting out onto an Ethernet (it - * doesn't put an Ethernet header onto the wire, it puts raw - * DOCSIS frames out on the wire inside the low-level - * Ethernet framing). - */ - p->dlt_list = (u_int *) malloc(sizeof(u_int) * 2); - /* - * If that fails, just leave the list empty. - */ - if (p->dlt_list != NULL) { - p->dlt_list[0] = DLT_EN10MB; - p->dlt_list[1] = DLT_DOCSIS; - p->dlt_count = 2; - } - break; - - case ENDT_FDDI: - p->linktype = DLT_FDDI; - break; - -#ifdef ENDT_SLIP - case ENDT_SLIP: - p->linktype = DLT_SLIP; - break; -#endif - -#ifdef ENDT_PPP - case ENDT_PPP: - p->linktype = DLT_PPP; - break; -#endif - -#ifdef ENDT_LOOPBACK - case ENDT_LOOPBACK: - /* - * It appears to use Ethernet framing, at least on - * Digital UNIX 4.0. - */ - p->linktype = DLT_EN10MB; - p->offset = 2; - break; -#endif - -#ifdef ENDT_TRN - case ENDT_TRN: - p->linktype = DLT_IEEE802; - break; -#endif - - default: - /* - * XXX - what about ENDT_IEEE802? The pfilt.h header - * file calls this "IEEE 802 networks (non-Ethernet)", - * but that doesn't specify a specific link layer type; - * it could be 802.4, or 802.5 (except that 802.5 is - * ENDT_TRN), or 802.6, or 802.11, or.... That's why - * DLT_IEEE802 was hijacked to mean Token Ring in various - * BSDs, and why we went along with that hijacking. - * - * XXX - what about ENDT_HDLC and ENDT_NULL? - * Presumably, as ENDT_OTHER is just "Miscellaneous - * framing", there's not much we can do, as that - * doesn't specify a particular type of header. - */ - snprintf(ebuf, PCAP_ERRBUF_SIZE, "unknown data-link type %u", - devparams.end_dev_type); - goto bad; - } - /* set truncation */ -#ifdef PCAP_FDDIPAD - if (p->linktype == DLT_FDDI) { - p->fddipad = PCAP_FDDIPAD; - - /* packetfilter includes the padding in the snapshot */ - snaplen += PCAP_FDDIPAD; - } else - p->fddipad = 0; -#endif - if (ioctl(p->fd, EIOCTRUNCATE, (caddr_t)&snaplen) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "EIOCTRUNCATE: %s", - pcap_strerror(errno)); - goto bad; - } - p->snapshot = snaplen; - /* accept all packets */ - memset(&Filter, 0, sizeof(Filter)); - Filter.enf_Priority = 37; /* anything > 2 */ - Filter.enf_FilterLen = 0; /* means "always true" */ - if (ioctl(p->fd, EIOCSETF, (caddr_t)&Filter) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "EIOCSETF: %s", - pcap_strerror(errno)); - goto bad; - } - - if (to_ms != 0) { - struct timeval timeout; - timeout.tv_sec = to_ms / 1000; - timeout.tv_usec = (to_ms * 1000) % 1000000; - if (ioctl(p->fd, EIOCSRTIMEOUT, (caddr_t)&timeout) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "EIOCSRTIMEOUT: %s", - pcap_strerror(errno)); - goto bad; - } - } - - p->bufsize = BUFSPACE; - p->buffer = (u_char*)malloc(p->bufsize + p->offset); - if (p->buffer == NULL) { - strlcpy(ebuf, pcap_strerror(errno), PCAP_ERRBUF_SIZE); - goto bad; - } - - /* - * "select()" and "poll()" work on packetfilter devices. - */ - p->selectable_fd = p->fd; - - p->read_op = pcap_read_pf; - p->inject_op = pcap_inject_pf; - p->setfilter_op = pcap_setfilter_pf; - p->setdirection_op = NULL; /* Not implemented. */ - p->set_datalink_op = NULL; /* can't change data link type */ - p->getnonblock_op = pcap_getnonblock_fd; - p->setnonblock_op = pcap_setnonblock_fd; - p->stats_op = pcap_stats_pf; - p->close_op = pcap_close_common; - - return (p); - bad: - if (p->fd >= 0) - close(p->fd); - /* - * Get rid of any link-layer type list we allocated. - */ - if (p->dlt_list != NULL) - free(p->dlt_list); - free(p); - return (NULL); -} - -int -pcap_platform_finddevs(pcap_if_t **alldevsp, char *errbuf) -{ - return (0); -} - -static int -pcap_setfilter_pf(pcap_t *p, struct bpf_program *fp) -{ - struct bpf_version bv; - - /* - * See if BIOCVERSION works. If not, we assume the kernel doesn't - * support BPF-style filters (it's not documented in the bpf(7) - * or packetfiler(7) man pages, but the code used to fail if - * BIOCSETF worked but BIOCVERSION didn't, and I've seen it do - * kernel filtering in DU 4.0, so presumably BIOCVERSION works - * there, at least). - */ - if (ioctl(p->fd, BIOCVERSION, (caddr_t)&bv) >= 0) { - /* - * OK, we have the version of the BPF interpreter; - * is it the same major version as us, and the same - * or better minor version? - */ - if (bv.bv_major == BPF_MAJOR_VERSION && - bv.bv_minor >= BPF_MINOR_VERSION) { - /* - * Yes. Try to install the filter. - */ - if (ioctl(p->fd, BIOCSETF, (caddr_t)fp) < 0) { - snprintf(p->errbuf, sizeof(p->errbuf), - "BIOCSETF: %s", pcap_strerror(errno)); - return (-1); - } - - /* - * OK, that succeeded. We're doing filtering in - * the kernel. (We assume we don't have a - * userland filter installed - that'd require - * a previous version check to have failed but - * this one to succeed.) - * - * XXX - this message should be supplied to the - * application as a warning of some sort, - * except that if it's a GUI application, it's - * not clear that it should be displayed in - * a window to annoy the user. - */ - fprintf(stderr, "tcpdump: Using kernel BPF filter\n"); - p->md.use_bpf = 1; - - /* - * Discard any previously-received packets, - * as they might have passed whatever filter - * was formerly in effect, but might not pass - * this filter (BIOCSETF discards packets buffered - * in the kernel, so you can lose packets in any - * case). - */ - p->cc = 0; - return (0); - } - - /* - * We can't use the kernel's BPF interpreter; don't give - * up, just log a message and be inefficient. - * - * XXX - this should really be supplied to the application - * as a warning of some sort. - */ - fprintf(stderr, - "tcpdump: Requires BPF language %d.%d or higher; kernel is %d.%d\n", - BPF_MAJOR_VERSION, BPF_MINOR_VERSION, - bv.bv_major, bv.bv_minor); - } - - /* - * We couldn't do filtering in the kernel; do it in userland. - */ - if (install_bpf_program(p, fp) < 0) - return (-1); - - /* - * XXX - this message should be supplied by the application as - * a warning of some sort. - */ - fprintf(stderr, "tcpdump: Filtering in user process\n"); - p->md.use_bpf = 0; - return (0); -} diff --git a/contrib/libpcap/pcap-pf.h b/contrib/libpcap/pcap-pf.h deleted file mode 100644 index 60bea83..0000000 --- a/contrib/libpcap/pcap-pf.h +++ /dev/null @@ -1,19 +0,0 @@ -/* - * Copyright (c) 1990, 1994 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms are permitted - * provided that the above copyright notice and this paragraph are - * duplicated in all such forms and that any documentation, - * advertising materials, and other materials related to such - * distribution and use acknowledge that the software was developed - * by the University of California, Lawrence Berkeley Laboratory, - * Berkeley, CA. The name of the University may not be used to - * endorse or promote products derived from this software without - * specific prior written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED - * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * @(#) $Header: /tcpdump/master/libpcap/pcap-pf.h,v 1.2.1.1 1999/10/07 23:46:40 mcr Exp $ (LBL) - */ diff --git a/contrib/libpcap/pcap-septel.c b/contrib/libpcap/pcap-septel.c deleted file mode 100644 index 5169ec0..0000000 --- a/contrib/libpcap/pcap-septel.c +++ /dev/null @@ -1,307 +0,0 @@ -/* - * pcap-septel.c: Packet capture interface for Intel/Septel card. - * - * The functionality of this code attempts to mimic that of pcap-linux as much - * as possible. This code is compiled in several different ways depending on - * whether SEPTEL_ONLY and HAVE_SEPTEL_API are defined. If HAVE_SEPTEL_API is - * not defined it should not get compiled in, otherwise if SEPTEL_ONLY is - * defined then the 'septel_' function calls are renamed to 'pcap_' - * equivalents. If SEPTEL_ONLY is not defined then nothing is altered - the - * septel_ functions will be called as required from their - * pcap-linux/equivalents. - * - * Authors: Gilbert HOYEK (gil_hoyek@hotmail.com), Elias M. KHOURY - * (+961 3 485243) - */ - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/pcap-septel.c,v 1.1.2.2 2005/06/21 01:03:23 guy Exp $"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <sys/param.h> - -#include <stdlib.h> -#include <string.h> -#include <errno.h> - -#include "pcap-int.h" - -#include <ctype.h> -#include <netinet/in.h> -#include <sys/mman.h> -#include <sys/socket.h> -#include <sys/types.h> -#include <unistd.h> - -#ifdef HAVE_SEPTEL_API -#include <msg.h> -#include <ss7_inc.h> -#include <sysgct.h> -#include <pack.h> -#include <system.h> -#endif /* HAVE_SEPTEL_API */ - -#ifdef SEPTEL_ONLY -/* This code is required when compiling for a Septel device only. */ -#include "pcap-septel.h" - -/* Replace dag function names with pcap equivalent. */ -#define septel_open_live pcap_open_live -#define septel_platform_finddevs pcap_platform_finddevs -#endif /* SEPTEL_ONLY */ - -static int septel_setfilter(pcap_t *p, struct bpf_program *fp); -static int septel_stats(pcap_t *p, struct pcap_stat *ps); -static int septel_setnonblock(pcap_t *p, int nonblock, char *errbuf); - -static void septel_platform_close(pcap_t *p) { - -} - - - -/* - * Read at most max_packets from the capture queue and call the callback - * for each of them. Returns the number of packets handled, -1 if an - * error occured, or -2 if we were told to break out of the loop. - */ -static int septel_read(pcap_t *p, int cnt, pcap_handler callback, u_char *user) { - - HDR *h; - MSG *m; - int processed = 0 ; - int t = 0 ; - - /* identifier for the message queue of the module(upe) from which we are capturing - * packets.These IDs are defined in system.txt . By default it is set to 0x2d - * so change it to 0xdd for technical reason and therefore the module id for upe becomes: - * LOCAL 0xdd * upe - Example user part task */ - unsigned int id = 0xdd; - - /* process the packets */ - do { - - unsigned short packet_len = 0; - int caplen = 0; - int counter = 0; - struct pcap_pkthdr pcap_header; - u_char *dp ; - - /* - * Has "pcap_breakloop()" been called? - */ -loop: - if (p->break_loop) { - /* - * Yes - clear the flag that indicates that - * it has, and return -2 to indicate that - * we were told to break out of the loop. - */ - p->break_loop = 0; - return -2; - } - - /*repeat until a packet is read - *a NULL message means : - * when no packet is in queue or all packets in queue already read */ - do { - /* receive packet in non-blocking mode - * GCT_grab is defined in the septel library software */ - h = GCT_grab(id); - - m = (MSG*)h; - /* a couter is added here to avoid an infinite loop - * that will cause our capture program GUI to freeze while waiting - * for a packet*/ - counter++ ; - - } - while ((m == NULL)&& (counter< 100)) ; - - if (m != NULL) { - - t = h->type ; - - /* catch only messages with type = 0xcf00 or 0x8f01 corrsponding to ss7 messages*/ - /* XXX = why not use API_MSG_TX_REQ for 0xcf00 and API_MSG_RX_IND - * for 0x8f01? */ - if ((t != 0xcf00) && (t != 0x8f01)) { - relm(h); - goto loop ; - } - - /* XXX - is API_MSG_RX_IND for an MTP2 or MTP3 message? */ - dp = get_param(m);/* get pointer to MSG parameter area (m->param) */ - packet_len = m->len; - caplen = p->snapshot ; - - - if (caplen > packet_len) { - - caplen = packet_len; - } - /* Run the packet filter if there is one. */ - if ((p->fcode.bf_insns == NULL) || bpf_filter(p->fcode.bf_insns, dp, packet_len, caplen)) { - - - /* get a time stamp , consisting of : - * - * pcap_header.ts.tv_sec: - * ---------------------- - * a UNIX format time-in-seconds when he packet was captured, - * i.e. the number of seconds since Epoch time (January 1,1970, 00:00:00 GMT) - * - * pcap_header.ts.tv_usec : - * ------------------------ - * the number of microseconds since that second - * when the packet was captured - */ - - (void)gettimeofday(&pcap_header.ts, NULL); - - /* Fill in our own header data */ - pcap_header.caplen = caplen; - pcap_header.len = packet_len; - - /* Count the packet. */ - p->md.stat.ps_recv++; - - /* Call the user supplied callback function */ - callback(user, &pcap_header, dp); - - processed++ ; - - } - /* after being processed the packet must be - *released in order to receive another one */ - relm(h); - }else - processed++; - - } - while (processed < cnt) ; - - return processed ; -} - - -static int -septel_inject(pcap_t *handle, const void *buf _U_, size_t size _U_) -{ - strlcpy(handle->errbuf, "Sending packets isn't supported on Septel cards", - PCAP_ERRBUF_SIZE); - return (-1); -} - -/* - * Get a handle for a live capture from the given Septel device. Always pass a NULL device - * The promisc flag is ignored because Septel cards have built-in tracing. - * The to_ms parameter is also ignored as it is - * not supported in hardware. - * - * See also pcap(3). - */ -pcap_t *septel_open_live(const char *device, int snaplen, int promisc, int to_ms, char *ebuf) { - pcap_t *handle; - - handle = malloc(sizeof(*handle)); - if (handle == NULL) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "malloc %s: %s", device, pcap_strerror(errno)); - return NULL; - } - - /* Initialize some components of the pcap structure. */ - - memset(handle, 0, sizeof(*handle)); - - handle->snapshot = snaplen; - - handle->linktype = DLT_MTP2; - - handle->bufsize = 0; - - /* - * "select()" and "poll()" don't work on Septel queues - */ - handle->selectable_fd = -1; - - handle->read_op = septel_read; - handle->inject_op = septel_inject; - handle->setfilter_op = septel_setfilter; - handle->set_datalink_op = NULL; /* can't change data link type */ - handle->getnonblock_op = pcap_getnonblock_fd; - handle->setnonblock_op = septel_setnonblock; - handle->stats_op = septel_stats; - handle->close_op = septel_platform_close; - - return handle; - -fail: - if (handle != NULL) { - free(handle); - } - - return NULL; -} - -static int septel_stats(pcap_t *p, struct pcap_stat *ps) { - /*p->md.stat.ps_recv = 0;*/ - /*p->md.stat.ps_drop = 0;*/ - - *ps = p->md.stat; - - return 0; -} - - -int -septel_platform_finddevs(pcap_if_t **devlistp, char *errbuf) -{ -unsigned char *p; - const char description[512]= "Intel/Septel device"; - char name[512]="septel" ; - int ret = 0; - pcap_add_if(devlistp,name,0,description,errbuf); - - return (ret); -} - - -/* - * Installs the given bpf filter program in the given pcap structure. There is - * no attempt to store the filter in kernel memory as that is not supported - * with Septel cards. - */ -static int septel_setfilter(pcap_t *p, struct bpf_program *fp) { - if (!p) - return -1; - if (!fp) { - strncpy(p->errbuf, "setfilter: No filter specified", - sizeof(p->errbuf)); - return -1; - } - - /* Make our private copy of the filter */ - - if (install_bpf_program(p, fp) < 0) { - snprintf(p->errbuf, sizeof(p->errbuf), - "malloc: %s", pcap_strerror(errno)); - return -1; - } - - p->md.use_bpf = 0; - - return (0); -} - - -static int -septel_setnonblock(pcap_t *p, int nonblock, char *errbuf) -{ - return (0); -} diff --git a/contrib/libpcap/pcap-septel.h b/contrib/libpcap/pcap-septel.h deleted file mode 100644 index 1de6377..0000000 --- a/contrib/libpcap/pcap-septel.h +++ /dev/null @@ -1,15 +0,0 @@ -/* - * pcap-septel.c: Packet capture interface for Intel Septel card - * - * The functionality of this code attempts to mimic that of pcap-linux as much - * as possible. This code is only needed when compiling in the Intel/Septel - * card code at the same time as another type of device. - * - * Authors: Gilbert HOYEK (gil_hoyek@hotmail.com), Elias M. KHOURY - * (+961 3 485343); - * - * @(#) $Header: /tcpdump/master/libpcap/pcap-septel.h,v 1.1.2.1 2005/06/20 21:30:19 guy Exp $ - */ - -pcap_t *septel_open_live(const char *device, int snaplen, int promisc, int to_ms, char *ebuf); - diff --git a/contrib/libpcap/pcap-snit.c b/contrib/libpcap/pcap-snit.c deleted file mode 100644 index 60abe64..0000000 --- a/contrib/libpcap/pcap-snit.c +++ /dev/null @@ -1,419 +0,0 @@ -/* - * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * Modifications made to accommodate the new SunOS4.0 NIT facility by - * Micky Liu, micky@cunixc.cc.columbia.edu, Columbia University in May, 1989. - * This module now handles the STREAMS based NIT. - */ - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/pcap-snit.c,v 1.72.2.1 2005/05/03 18:54:38 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <sys/types.h> -#include <sys/time.h> -#include <sys/timeb.h> -#include <sys/dir.h> -#include <sys/fcntlcom.h> -#include <sys/file.h> -#include <sys/ioctl.h> -#include <sys/socket.h> -#include <sys/stropts.h> - -#include <net/if.h> -#include <net/nit.h> -#include <net/nit_if.h> -#include <net/nit_pf.h> -#include <net/nit_buf.h> - -#include <netinet/in.h> -#include <netinet/in_systm.h> -#include <netinet/ip.h> -#include <netinet/if_ether.h> -#include <netinet/ip_var.h> -#include <netinet/udp.h> -#include <netinet/udp_var.h> -#include <netinet/tcp.h> -#include <netinet/tcpip.h> - -#include <ctype.h> -#include <errno.h> -#include <stdio.h> -#include <string.h> -#include <unistd.h> - -#include "pcap-int.h" - -#ifdef HAVE_OS_PROTO_H -#include "os-proto.h" -#endif - -/* - * The chunk size for NIT. This is the amount of buffering - * done for read calls. - */ -#define CHUNKSIZE (2*1024) - -/* - * The total buffer space used by NIT. - */ -#define BUFSPACE (4*CHUNKSIZE) - -/* Forwards */ -static int nit_setflags(int, int, int, char *); - -static int -pcap_stats_snit(pcap_t *p, struct pcap_stat *ps) -{ - - /* - * "ps_recv" counts packets handed to the filter, not packets - * that passed the filter. As filtering is done in userland, - * this does not include packets dropped because we ran out - * of buffer space. - * - * "ps_drop" counts packets dropped inside the "/dev/nit" - * device because of flow control requirements or resource - * exhaustion; it doesn't count packets dropped by the - * interface driver, or packets dropped upstream. As filtering - * is done in userland, it counts packets regardless of whether - * they would've passed the filter. - * - * These statistics don't include packets not yet read from the - * kernel by libpcap or packets not yet read from libpcap by the - * application. - */ - *ps = p->md.stat; - return (0); -} - -static int -pcap_read_snit(pcap_t *p, int cnt, pcap_handler callback, u_char *user) -{ - register int cc, n; - register struct bpf_insn *fcode = p->fcode.bf_insns; - register u_char *bp, *cp, *ep; - register struct nit_bufhdr *hdrp; - register struct nit_iftime *ntp; - register struct nit_iflen *nlp; - register struct nit_ifdrops *ndp; - register int caplen; - - cc = p->cc; - if (cc == 0) { - cc = read(p->fd, (char *)p->buffer, p->bufsize); - if (cc < 0) { - if (errno == EWOULDBLOCK) - return (0); - snprintf(p->errbuf, sizeof(p->errbuf), "pcap_read: %s", - pcap_strerror(errno)); - return (-1); - } - bp = p->buffer; - } else - bp = p->bp; - - /* - * loop through each snapshot in the chunk - */ - n = 0; - ep = bp + cc; - while (bp < ep) { - /* - * Has "pcap_breakloop()" been called? - * If so, return immediately - if we haven't read any - * packets, clear the flag and return -2 to indicate - * that we were told to break out of the loop, otherwise - * leave the flag set, so that the *next* call will break - * out of the loop without having read any packets, and - * return the number of packets we've processed so far. - */ - if (p->break_loop) { - if (n == 0) { - p->break_loop = 0; - return (-2); - } else { - p->bp = bp; - p->cc = ep - bp; - return (n); - } - } - - ++p->md.stat.ps_recv; - cp = bp; - - /* get past NIT buffer */ - hdrp = (struct nit_bufhdr *)cp; - cp += sizeof(*hdrp); - - /* get past NIT timer */ - ntp = (struct nit_iftime *)cp; - cp += sizeof(*ntp); - - ndp = (struct nit_ifdrops *)cp; - p->md.stat.ps_drop = ndp->nh_drops; - cp += sizeof *ndp; - - /* get past packet len */ - nlp = (struct nit_iflen *)cp; - cp += sizeof(*nlp); - - /* next snapshot */ - bp += hdrp->nhb_totlen; - - caplen = nlp->nh_pktlen; - if (caplen > p->snapshot) - caplen = p->snapshot; - - if (bpf_filter(fcode, cp, nlp->nh_pktlen, caplen)) { - struct pcap_pkthdr h; - h.ts = ntp->nh_timestamp; - h.len = nlp->nh_pktlen; - h.caplen = caplen; - (*callback)(user, &h, cp); - if (++n >= cnt && cnt >= 0) { - p->cc = ep - bp; - p->bp = bp; - return (n); - } - } - } - p->cc = 0; - return (n); -} - -static int -pcap_inject_snit(pcap_t *p, const void *buf, size_t size) -{ - struct strbuf ctl, data; - - /* - * XXX - can we just do - * - ret = write(pd->f, buf, size); - */ - ctl.len = sizeof(*sa); /* XXX - what was this? */ - ctl.buf = (char *)sa; - data.buf = buf; - data.len = size; - ret = putmsg(p->fd, &ctl, &data); - if (ret == -1) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "send: %s", - pcap_strerror(errno)); - return (-1); - } - return (ret); -} - -static int -nit_setflags(int fd, int promisc, int to_ms, char *ebuf) -{ - bpf_u_int32 flags; - struct strioctl si; - struct timeval timeout; - - si.ic_timout = INFTIM; - if (to_ms != 0) { - timeout.tv_sec = to_ms / 1000; - timeout.tv_usec = (to_ms * 1000) % 1000000; - si.ic_cmd = NIOCSTIME; - si.ic_len = sizeof(timeout); - si.ic_dp = (char *)&timeout; - if (ioctl(fd, I_STR, (char *)&si) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "NIOCSTIME: %s", - pcap_strerror(errno)); - return (-1); - } - } - flags = NI_TIMESTAMP | NI_LEN | NI_DROPS; - if (promisc) - flags |= NI_PROMISC; - si.ic_cmd = NIOCSFLAGS; - si.ic_len = sizeof(flags); - si.ic_dp = (char *)&flags; - if (ioctl(fd, I_STR, (char *)&si) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "NIOCSFLAGS: %s", - pcap_strerror(errno)); - return (-1); - } - return (0); -} - -pcap_t * -pcap_open_live(const char *device, int snaplen, int promisc, int to_ms, - char *ebuf) -{ - struct strioctl si; /* struct for ioctl() */ - struct ifreq ifr; /* interface request struct */ - int chunksize = CHUNKSIZE; - int fd; - static char dev[] = "/dev/nit"; - register pcap_t *p; - - p = (pcap_t *)malloc(sizeof(*p)); - if (p == NULL) { - strlcpy(ebuf, pcap_strerror(errno), PCAP_ERRBUF_SIZE); - return (NULL); - } - - if (snaplen < 96) - /* - * NIT requires a snapshot length of at least 96. - */ - snaplen = 96; - - memset(p, 0, sizeof(*p)); - /* - * Initially try a read/write open (to allow the inject - * method to work). If that fails due to permission - * issues, fall back to read-only. This allows a - * non-root user to be granted specific access to pcap - * capabilities via file permissions. - * - * XXX - we should have an API that has a flag that - * controls whether to open read-only or read-write, - * so that denial of permission to send (or inability - * to send, if sending packets isn't supported on - * the device in question) can be indicated at open - * time. - */ - p->fd = fd = open(dev, O_RDWR); - if (fd < 0 && errno == EACCES) - p->fd = fd = open(dev, O_RDONLY); - if (fd < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "%s: %s", dev, - pcap_strerror(errno)); - goto bad; - } - - /* arrange to get discrete messages from the STREAM and use NIT_BUF */ - if (ioctl(fd, I_SRDOPT, (char *)RMSGD) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "I_SRDOPT: %s", - pcap_strerror(errno)); - goto bad; - } - if (ioctl(fd, I_PUSH, "nbuf") < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "push nbuf: %s", - pcap_strerror(errno)); - goto bad; - } - /* set the chunksize */ - si.ic_cmd = NIOCSCHUNK; - si.ic_timout = INFTIM; - si.ic_len = sizeof(chunksize); - si.ic_dp = (char *)&chunksize; - if (ioctl(fd, I_STR, (char *)&si) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "NIOCSCHUNK: %s", - pcap_strerror(errno)); - goto bad; - } - - /* request the interface */ - strncpy(ifr.ifr_name, device, sizeof(ifr.ifr_name)); - ifr.ifr_name[sizeof(ifr.ifr_name) - 1] = '\0'; - si.ic_cmd = NIOCBIND; - si.ic_len = sizeof(ifr); - si.ic_dp = (char *)𝔦 - if (ioctl(fd, I_STR, (char *)&si) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "NIOCBIND: %s: %s", - ifr.ifr_name, pcap_strerror(errno)); - goto bad; - } - - /* set the snapshot length */ - si.ic_cmd = NIOCSSNAP; - si.ic_len = sizeof(snaplen); - si.ic_dp = (char *)&snaplen; - if (ioctl(fd, I_STR, (char *)&si) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "NIOCSSNAP: %s", - pcap_strerror(errno)); - goto bad; - } - p->snapshot = snaplen; - if (nit_setflags(p->fd, promisc, to_ms, ebuf) < 0) - goto bad; - - (void)ioctl(fd, I_FLUSH, (char *)FLUSHR); - /* - * NIT supports only ethernets. - */ - p->linktype = DLT_EN10MB; - - p->bufsize = BUFSPACE; - p->buffer = (u_char *)malloc(p->bufsize); - if (p->buffer == NULL) { - strlcpy(ebuf, pcap_strerror(errno), PCAP_ERRBUF_SIZE); - goto bad; - } - - /* - * "p->fd" is an FD for a STREAMS device, so "select()" and - * "poll()" should work on it. - */ - p->selectable_fd = p->fd; - - /* - * This is (presumably) a real Ethernet capture; give it a - * link-layer-type list with DLT_EN10MB and DLT_DOCSIS, so - * that an application can let you choose it, in case you're - * capturing DOCSIS traffic that a Cisco Cable Modem - * Termination System is putting out onto an Ethernet (it - * doesn't put an Ethernet header onto the wire, it puts raw - * DOCSIS frames out on the wire inside the low-level - * Ethernet framing). - */ - p->dlt_list = (u_int *) malloc(sizeof(u_int) * 2); - /* - * If that fails, just leave the list empty. - */ - if (p->dlt_list != NULL) { - p->dlt_list[0] = DLT_EN10MB; - p->dlt_list[1] = DLT_DOCSIS; - p->dlt_count = 2; - } - - p->read_op = pcap_read_snit; - p->inject_op = pcap_inject_snit; - p->setfilter_op = install_bpf_program; /* no kernel filtering */ - p->setdirection_op = NULL; /* Not implemented. */ - p->set_datalink_op = NULL; /* can't change data link type */ - p->getnonblock_op = pcap_getnonblock_fd; - p->setnonblock_op = pcap_setnonblock_fd; - p->stats_op = pcap_stats_snit; - p->close_op = pcap_close_common; - - return (p); - bad: - if (fd >= 0) - close(fd); - free(p); - return (NULL); -} - -int -pcap_platform_finddevs(pcap_if_t **alldevsp, char *errbuf) -{ - return (0); -} diff --git a/contrib/libpcap/pcap-snoop.c b/contrib/libpcap/pcap-snoop.c deleted file mode 100644 index f6425f1..0000000 --- a/contrib/libpcap/pcap-snoop.c +++ /dev/null @@ -1,405 +0,0 @@ -/* - * Copyright (c) 1993, 1994, 1995, 1996, 1997 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/pcap-snoop.c,v 1.54.2.1 2005/05/03 18:54:38 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <sys/param.h> -#include <sys/file.h> -#include <sys/ioctl.h> -#include <sys/socket.h> -#include <sys/time.h> - -#include <net/raw.h> -#include <net/if.h> - -#include <netinet/in.h> -#include <netinet/in_systm.h> -#include <netinet/ip.h> -#include <netinet/if_ether.h> -#include <netinet/ip_var.h> -#include <netinet/udp.h> -#include <netinet/udp_var.h> -#include <netinet/tcp.h> -#include <netinet/tcpip.h> - -#include <errno.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#include "pcap-int.h" - -#ifdef HAVE_OS_PROTO_H -#include "os-proto.h" -#endif - -static int -pcap_read_snoop(pcap_t *p, int cnt, pcap_handler callback, u_char *user) -{ - int cc; - register struct snoopheader *sh; - register u_int datalen; - register u_int caplen; - register u_char *cp; - -again: - /* - * Has "pcap_breakloop()" been called? - */ - if (p->break_loop) { - /* - * Yes - clear the flag that indicates that it - * has, and return -2 to indicate that we were - * told to break out of the loop. - */ - p->break_loop = 0; - return (-2); - } - cc = read(p->fd, (char *)p->buffer, p->bufsize); - if (cc < 0) { - /* Don't choke when we get ptraced */ - switch (errno) { - - case EINTR: - goto again; - - case EWOULDBLOCK: - return (0); /* XXX */ - } - snprintf(p->errbuf, sizeof(p->errbuf), - "read: %s", pcap_strerror(errno)); - return (-1); - } - sh = (struct snoopheader *)p->buffer; - datalen = sh->snoop_packetlen; - - /* - * XXX - Sigh, snoop_packetlen is a 16 bit quantity. If we - * got a short length, but read a full sized snoop pakcet, - * assume we overflowed and add back the 64K... - */ - if (cc == (p->snapshot + sizeof(struct snoopheader)) && - (datalen < p->snapshot)) - datalen += (64 * 1024); - - caplen = (datalen < p->snapshot) ? datalen : p->snapshot; - cp = (u_char *)(sh + 1) + p->offset; /* XXX */ - - /* - * XXX unfortunately snoop loopback isn't exactly like - * BSD's. The address family is encoded in the first 2 - * bytes rather than the first 4 bytes! Luckily the last - * two snoop loopback bytes are zeroed. - */ - if (p->linktype == DLT_NULL && *((short *)(cp + 2)) == 0) { - u_int *uip = (u_int *)cp; - *uip >>= 16; - } - - if (p->fcode.bf_insns == NULL || - bpf_filter(p->fcode.bf_insns, cp, datalen, caplen)) { - struct pcap_pkthdr h; - ++p->md.stat.ps_recv; - h.ts.tv_sec = sh->snoop_timestamp.tv_sec; - h.ts.tv_usec = sh->snoop_timestamp.tv_usec; - h.len = datalen; - h.caplen = caplen; - (*callback)(user, &h, cp); - return (1); - } - return (0); -} - -static int -pcap_inject_snoop(pcap_t *p, const void *buf, size_t size) -{ - int ret; - - /* - * XXX - libnet overwrites the source address with what I - * presume is the interface's address; is that required? - */ - ret = write(p->fd, buf, size); - if (ret == -1) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "send: %s", - pcap_strerror(errno)); - return (-1); - } - return (ret); -} - -static int -pcap_stats_snoop(pcap_t *p, struct pcap_stat *ps) -{ - register struct rawstats *rs; - struct rawstats rawstats; - - rs = &rawstats; - memset(rs, 0, sizeof(*rs)); - if (ioctl(p->fd, SIOCRAWSTATS, (char *)rs) < 0) { - snprintf(p->errbuf, sizeof(p->errbuf), - "SIOCRAWSTATS: %s", pcap_strerror(errno)); - return (-1); - } - - /* - * "ifdrops" are those dropped by the network interface - * due to resource shortages or hardware errors. - * - * "sbdrops" are those dropped due to socket buffer limits. - * - * As filter is done in userland, "sbdrops" counts packets - * regardless of whether they would've passed the filter. - * - * XXX - does this count *all* Snoop or Drain sockets, - * rather than just this socket? If not, why does it have - * both Snoop and Drain statistics? - */ - p->md.stat.ps_drop = - rs->rs_snoop.ss_ifdrops + rs->rs_snoop.ss_sbdrops + - rs->rs_drain.ds_ifdrops + rs->rs_drain.ds_sbdrops; - - /* - * "ps_recv" counts only packets that passed the filter. - * As filtering is done in userland, this does not include - * packets dropped because we ran out of buffer space. - */ - *ps = p->md.stat; - return (0); -} - -/* XXX can't disable promiscuous */ -pcap_t * -pcap_open_live(const char *device, int snaplen, int promisc, int to_ms, - char *ebuf) -{ - int fd; - struct sockaddr_raw sr; - struct snoopfilter sf; - u_int v; - int ll_hdrlen; - int snooplen; - pcap_t *p; - struct ifreq ifr; - - p = (pcap_t *)malloc(sizeof(*p)); - if (p == NULL) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "malloc: %s", - pcap_strerror(errno)); - return (NULL); - } - memset(p, 0, sizeof(*p)); - fd = socket(PF_RAW, SOCK_RAW, RAWPROTO_SNOOP); - if (fd < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "snoop socket: %s", - pcap_strerror(errno)); - goto bad; - } - p->fd = fd; - memset(&sr, 0, sizeof(sr)); - sr.sr_family = AF_RAW; - (void)strncpy(sr.sr_ifname, device, sizeof(sr.sr_ifname)); - if (bind(fd, (struct sockaddr *)&sr, sizeof(sr))) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "snoop bind: %s", - pcap_strerror(errno)); - goto bad; - } - memset(&sf, 0, sizeof(sf)); - if (ioctl(fd, SIOCADDSNOOP, &sf) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "SIOCADDSNOOP: %s", - pcap_strerror(errno)); - goto bad; - } - v = 64 * 1024; - (void)setsockopt(fd, SOL_SOCKET, SO_RCVBUF, (char *)&v, sizeof(v)); - /* - * XXX hack - map device name to link layer type - */ - if (strncmp("et", device, 2) == 0 || /* Challenge 10 Mbit */ - strncmp("ec", device, 2) == 0 || /* Indigo/Indy 10 Mbit, - O2 10/100 */ - strncmp("ef", device, 2) == 0 || /* O200/2000 10/100 Mbit */ - strncmp("eg", device, 2) == 0 || /* Octane/O2xxx/O3xxx Gigabit */ - strncmp("gfe", device, 3) == 0 || /* GIO 100 Mbit */ - strncmp("fxp", device, 3) == 0 || /* Challenge VME Enet */ - strncmp("ep", device, 2) == 0 || /* Challenge 8x10 Mbit EPLEX */ - strncmp("vfe", device, 3) == 0 || /* Challenge VME 100Mbit */ - strncmp("fa", device, 2) == 0 || - strncmp("qaa", device, 3) == 0 || - strncmp("cip", device, 3) == 0 || - strncmp("el", device, 2) == 0) { - p->linktype = DLT_EN10MB; - p->offset = RAW_HDRPAD(sizeof(struct ether_header)); - ll_hdrlen = sizeof(struct ether_header); - /* - * This is (presumably) a real Ethernet capture; give it a - * link-layer-type list with DLT_EN10MB and DLT_DOCSIS, so - * that an application can let you choose it, in case you're - * capturing DOCSIS traffic that a Cisco Cable Modem - * Termination System is putting out onto an Ethernet (it - * doesn't put an Ethernet header onto the wire, it puts raw - * DOCSIS frames out on the wire inside the low-level - * Ethernet framing). - * - * XXX - are there any sorts of "fake Ethernet" that have - * Ethernet link-layer headers but that *shouldn't offer - * DLT_DOCSIS as a Cisco CMTS won't put traffic onto it - * or get traffic bridged onto it? "el" is for ATM LANE - * Ethernet devices, so that might be the case for them; - * the same applies for "qaa" classical IP devices. If - * "fa" devices are for FORE SPANS, that'd apply to them - * as well; what are "cip" devices - some other ATM - * Classical IP devices? - */ - p->dlt_list = (u_int *) malloc(sizeof(u_int) * 2); - /* - * If that fails, just leave the list empty. - */ - if (p->dlt_list != NULL) { - p->dlt_list[0] = DLT_EN10MB; - p->dlt_list[1] = DLT_DOCSIS; - p->dlt_count = 2; - } - } else if (strncmp("ipg", device, 3) == 0 || - strncmp("rns", device, 3) == 0 || /* O2/200/2000 FDDI */ - strncmp("xpi", device, 3) == 0) { - p->linktype = DLT_FDDI; - p->offset = 3; /* XXX yeah? */ - ll_hdrlen = 13; - } else if (strncmp("ppp", device, 3) == 0) { - p->linktype = DLT_RAW; - ll_hdrlen = 0; /* DLT_RAW meaning "no PPP header, just the IP packet"? */ - } else if (strncmp("qfa", device, 3) == 0) { - p->linktype = DLT_IP_OVER_FC; - ll_hdrlen = 24; - } else if (strncmp("pl", device, 2) == 0) { - p->linktype = DLT_RAW; - ll_hdrlen = 0; /* Cray UNICOS/mp pseudo link */ - } else if (strncmp("lo", device, 2) == 0) { - p->linktype = DLT_NULL; - ll_hdrlen = 4; - } else { - snprintf(ebuf, PCAP_ERRBUF_SIZE, - "snoop: unknown physical layer type"); - goto bad; - } -#ifdef SIOCGIFMTU - /* - * XXX - IRIX appears to give you an error if you try to set the - * capture length to be greater than the MTU, so let's try to get - * the MTU first and, if that succeeds, trim the snap length - * to be no greater than the MTU. - */ - (void)strncpy(ifr.ifr_name, device, sizeof(ifr.ifr_name)); - if (ioctl(fd, SIOCGIFMTU, (char *)&ifr) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "SIOCGIFMTU: %s", - pcap_strerror(errno)); - goto bad; - } - /* - * OK, we got it. - * - * XXX - some versions of IRIX 6.5 define "ifr_mtu" and have an - * "ifru_metric" member of the "ifr_ifru" union in an "ifreq" - * structure, others don't. - * - * I've no idea what's going on, so, if "ifr_mtu" isn't defined, - * we define it as "ifr_metric", as using that field appears to - * work on the versions that lack "ifr_mtu" (and, on those that - * don't lack it, "ifru_metric" and "ifru_mtu" are both "int" - * members of the "ifr_ifru" union, which suggests that they - * may be interchangeable in this case). - */ -#ifndef ifr_mtu -#define ifr_mtu ifr_metric -#endif - if (snaplen > ifr.ifr_mtu + ll_hdrlen) - snaplen = ifr.ifr_mtu + ll_hdrlen; -#endif - - /* - * The argument to SIOCSNOOPLEN is the number of link-layer - * payload bytes to capture - it doesn't count link-layer - * header bytes. - */ - snooplen = snaplen - ll_hdrlen; - if (snooplen < 0) - snooplen = 0; - if (ioctl(fd, SIOCSNOOPLEN, &snooplen) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "SIOCSNOOPLEN: %s", - pcap_strerror(errno)); - goto bad; - } - p->snapshot = snaplen; - v = 1; - if (ioctl(fd, SIOCSNOOPING, &v) < 0) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "SIOCSNOOPING: %s", - pcap_strerror(errno)); - goto bad; - } - - p->bufsize = 4096; /* XXX */ - p->buffer = (u_char *)malloc(p->bufsize); - if (p->buffer == NULL) { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "malloc: %s", - pcap_strerror(errno)); - goto bad; - } - - /* - * "p->fd" is a socket, so "select()" should work on it. - */ - p->selectable_fd = p->fd; - - p->read_op = pcap_read_snoop; - p->inject_op = pcap_inject_snoop; - p->setfilter_op = install_bpf_program; /* no kernel filtering */ - p->setdirection_op = NULL; /* Not implemented. */ - p->set_datalink_op = NULL; /* can't change data link type */ - p->getnonblock_op = pcap_getnonblock_fd; - p->setnonblock_op = pcap_setnonblock_fd; - p->stats_op = pcap_stats_snoop; - p->close_op = pcap_close_common; - - return (p); - bad: - (void)close(fd); - /* - * Get rid of any link-layer type list we allocated. - */ - if (p->dlt_list != NULL) - free(p->dlt_list); - free(p); - return (NULL); -} - -int -pcap_platform_finddevs(pcap_if_t **alldevsp, char *errbuf) -{ - return (0); -} diff --git a/contrib/libpcap/pcap-stdinc.h b/contrib/libpcap/pcap-stdinc.h deleted file mode 100644 index 1281024..0000000 --- a/contrib/libpcap/pcap-stdinc.h +++ /dev/null @@ -1,64 +0,0 @@ -/* - * Copyright (c) 2002 - 2003 - * NetGroup, Politecnico di Torino (Italy) - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the Politecnico di Torino nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#define SIZEOF_CHAR 1 -#define SIZEOF_SHORT 2 -#define SIZEOF_INT 4 -#ifndef _MSC_EXTENSIONS -#define SIZEOF_LONG_LONG 8 -#endif - -/* - * Avoids a compiler warning in case this was already defined - * (someone defined _WINSOCKAPI_ when including 'windows.h', in order - * to prevent it from including 'winsock.h') - */ -#ifdef _WINSOCKAPI_ -#undef _WINSOCKAPI_ -#endif -#include <winsock2.h> - -#include <fcntl.h> - -#include "bittypes.h" -#include <time.h> -#include <io.h> - -#ifndef __MINGW32__ -#include "IP6_misc.h" -#endif - -#define caddr_t char* - -#define snprintf _snprintf -#define vsnprintf _vsnprintf -#define inline __inline diff --git a/contrib/libpcap/pcap-win32.c b/contrib/libpcap/pcap-win32.c deleted file mode 100644 index 435da66..0000000 --- a/contrib/libpcap/pcap-win32.c +++ /dev/null @@ -1,803 +0,0 @@ -/* - * Copyright (c) 1999 - 2005 NetGroup, Politecnico di Torino (Italy) - * Copyright (c) 2005 - 2007 CACE Technologies, Davis (California) - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the Politecnico di Torino, CACE Technologies - * nor the names of its contributors may be used to endorse or promote - * products derived from this software without specific prior written - * permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/pcap-win32.c,v 1.25.2.7 2007/06/14 22:07:14 gianluca Exp $ (LBL)"; -#endif - -#include <pcap-int.h> -#include <Packet32.h> -#include <Ntddndis.h> -#ifdef HAVE_DAG_API -#include <dagnew.h> -#include <dagapi.h> -#endif /* HAVE_DAG_API */ -#ifdef __MINGW32__ -int* _errno(); -#define errno (*_errno()) -#endif /* __MINGW32__ */ - -static int pcap_setfilter_win32_npf(pcap_t *, struct bpf_program *); -static int pcap_setfilter_win32_dag(pcap_t *, struct bpf_program *); -static int pcap_getnonblock_win32(pcap_t *, char *); -static int pcap_setnonblock_win32(pcap_t *, int, char *); - -#define PcapBufSize 256000 /*dimension of the buffer in the pcap_t structure*/ -#define SIZE_BUF 1000000 - -/* Equivalent to ntohs(), but a lot faster under Windows */ -#define SWAPS(_X) ((_X & 0xff) << 8) | (_X >> 8) - -/* - * Header that the WinPcap driver associates to the packets. - * Once was in bpf.h - */ -struct bpf_hdr { - struct timeval bh_tstamp; /* time stamp */ - bpf_u_int32 bh_caplen; /* length of captured portion */ - bpf_u_int32 bh_datalen; /* original length of packet */ - u_short bh_hdrlen; /* length of bpf header (this struct - plus alignment padding) */ -}; - -/* Start winsock */ -int -wsockinit() -{ - WORD wVersionRequested; - WSADATA wsaData; - int err; - wVersionRequested = MAKEWORD( 1, 1); - err = WSAStartup( wVersionRequested, &wsaData ); - if ( err != 0 ) - { - return -1; - } - return 0; -} - - -static int -pcap_stats_win32(pcap_t *p, struct pcap_stat *ps) -{ - - if(PacketGetStats(p->adapter, (struct bpf_stat*)ps) != TRUE){ - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "PacketGetStats error: %s", pcap_win32strerror()); - return -1; - } - - return 0; -} - -static int -pcap_read_win32_npf(pcap_t *p, int cnt, pcap_handler callback, u_char *user) -{ - int cc; - int n = 0; - register u_char *bp, *ep; - - cc = p->cc; - if (p->cc == 0) { - /* - * Has "pcap_breakloop()" been called? - */ - if (p->break_loop) { - /* - * Yes - clear the flag that indicates that it - * has, and return -2 to indicate that we were - * told to break out of the loop. - */ - p->break_loop = 0; - return (-2); - } - - /* capture the packets */ - if(PacketReceivePacket(p->adapter,p->Packet,TRUE)==FALSE){ - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "read error: PacketReceivePacket failed"); - return (-1); - } - - cc = p->Packet->ulBytesReceived; - - bp = p->Packet->Buffer; - } - else - bp = p->bp; - - /* - * Loop through each packet. - */ -#define bhp ((struct bpf_hdr *)bp) - ep = bp + cc; - while (1) { - register int caplen, hdrlen; - - /* - * Has "pcap_breakloop()" been called? - * If so, return immediately - if we haven't read any - * packets, clear the flag and return -2 to indicate - * that we were told to break out of the loop, otherwise - * leave the flag set, so that the *next* call will break - * out of the loop without having read any packets, and - * return the number of packets we've processed so far. - */ - if (p->break_loop) { - if (n == 0) { - p->break_loop = 0; - return (-2); - } else { - p->bp = bp; - p->cc = ep - bp; - return (n); - } - } - if (bp >= ep) - break; - - caplen = bhp->bh_caplen; - hdrlen = bhp->bh_hdrlen; - - /* - * XXX A bpf_hdr matches a pcap_pkthdr. - */ - (*callback)(user, (struct pcap_pkthdr*)bp, bp + hdrlen); - bp += BPF_WORDALIGN(caplen + hdrlen); - if (++n >= cnt && cnt > 0) { - p->bp = bp; - p->cc = ep - bp; - return (n); - } - } -#undef bhp - p->cc = 0; - return (n); -} - -#ifdef HAVE_DAG_API -static int -pcap_read_win32_dag(pcap_t *p, int cnt, pcap_handler callback, u_char *user) -{ - u_char *dp = NULL; - int packet_len = 0, caplen = 0; - struct pcap_pkthdr pcap_header; - u_char *endofbuf; - int n = 0; - dag_record_t *header; - unsigned erf_record_len; - ULONGLONG ts; - int cc; - unsigned swt; - unsigned dfp = p->adapter->DagFastProcess; - - cc = p->cc; - if (cc == 0) /* Get new packets only if we have processed all the ones of the previous read */ - { - /* Get new packets from the network */ - if(PacketReceivePacket(p->adapter, p->Packet, TRUE)==FALSE){ - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "read error: PacketReceivePacket failed"); - return (-1); - } - - cc = p->Packet->ulBytesReceived; - if(cc == 0) - /* The timeout has expired but we no packets arrived */ - return 0; - header = (dag_record_t*)p->adapter->DagBuffer; - } - else - header = (dag_record_t*)p->bp; - - endofbuf = (char*)header + cc; - - /* - * Cycle through the packets - */ - do - { - erf_record_len = SWAPS(header->rlen); - if((char*)header + erf_record_len > endofbuf) - break; - - /* Increase the number of captured packets */ - p->md.stat.ps_recv++; - - /* Find the beginning of the packet */ - dp = ((u_char *)header) + dag_record_size; - - /* Determine actual packet len */ - switch(header->type) - { - case TYPE_ATM: - packet_len = ATM_SNAPLEN; - caplen = ATM_SNAPLEN; - dp += 4; - - break; - - case TYPE_ETH: - swt = SWAPS(header->wlen); - packet_len = swt - (p->md.dag_fcs_bits); - caplen = erf_record_len - dag_record_size - 2; - if (caplen > packet_len) - { - caplen = packet_len; - } - dp += 2; - - break; - - case TYPE_HDLC_POS: - swt = SWAPS(header->wlen); - packet_len = swt - (p->md.dag_fcs_bits); - caplen = erf_record_len - dag_record_size; - if (caplen > packet_len) - { - caplen = packet_len; - } - - break; - } - - if(caplen > p->snapshot) - caplen = p->snapshot; - - /* - * Has "pcap_breakloop()" been called? - * If so, return immediately - if we haven't read any - * packets, clear the flag and return -2 to indicate - * that we were told to break out of the loop, otherwise - * leave the flag set, so that the *next* call will break - * out of the loop without having read any packets, and - * return the number of packets we've processed so far. - */ - if (p->break_loop) - { - if (n == 0) - { - p->break_loop = 0; - return (-2); - } - else - { - p->bp = (char*)header; - p->cc = endofbuf - (char*)header; - return (n); - } - } - - if(!dfp) - { - /* convert between timestamp formats */ - ts = header->ts; - pcap_header.ts.tv_sec = (int)(ts >> 32); - ts = (ts & 0xffffffffi64) * 1000000; - ts += 0x80000000; /* rounding */ - pcap_header.ts.tv_usec = (int)(ts >> 32); - if (pcap_header.ts.tv_usec >= 1000000) { - pcap_header.ts.tv_usec -= 1000000; - pcap_header.ts.tv_sec++; - } - } - - /* No underlaying filtering system. We need to filter on our own */ - if (p->fcode.bf_insns) - { - if (bpf_filter(p->fcode.bf_insns, dp, packet_len, caplen) == 0) - { - /* Move to next packet */ - header = (dag_record_t*)((char*)header + erf_record_len); - continue; - } - } - - /* Fill the header for the user suppplied callback function */ - pcap_header.caplen = caplen; - pcap_header.len = packet_len; - - /* Call the callback function */ - (*callback)(user, &pcap_header, dp); - - /* Move to next packet */ - header = (dag_record_t*)((char*)header + erf_record_len); - - /* Stop if the number of packets requested by user has been reached*/ - if (++n >= cnt && cnt > 0) - { - p->bp = (char*)header; - p->cc = endofbuf - (char*)header; - return (n); - } - } - while((u_char*)header < endofbuf); - - return 1; -} -#endif /* HAVE_DAG_API */ - -/* Send a packet to the network */ -static int -pcap_inject_win32(pcap_t *p, const void *buf, size_t size){ - LPPACKET PacketToSend; - - PacketToSend=PacketAllocatePacket(); - - if (PacketToSend == NULL) - { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "send error: PacketAllocatePacket failed"); - return -1; - } - - PacketInitPacket(PacketToSend,(PVOID)buf,size); - if(PacketSendPacket(p->adapter,PacketToSend,TRUE) == FALSE){ - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "send error: PacketSendPacket failed"); - PacketFreePacket(PacketToSend); - return -1; - } - - PacketFreePacket(PacketToSend); - - /* - * We assume it all got sent if "PacketSendPacket()" succeeded. - * "pcap_inject()" is expected to return the number of bytes - * sent. - */ - return size; -} - -static void -pcap_close_win32(pcap_t *p) -{ - pcap_close_common(p); - if (p->adapter != NULL) { - PacketCloseAdapter(p->adapter); - p->adapter = NULL; - } - if (p->Packet) { - PacketFreePacket(p->Packet); - p->Packet = NULL; - } -} - -pcap_t * -pcap_open_live(const char *device, int snaplen, int promisc, int to_ms, - char *ebuf) -{ - register pcap_t *p; - NetType type; - - /* Init WinSock */ - wsockinit(); - - p = (pcap_t *)malloc(sizeof(*p)); - if (p == NULL) - { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "malloc: %s", pcap_strerror(errno)); - return (NULL); - } - memset(p, 0, sizeof(*p)); - p->adapter=NULL; - - p->adapter = PacketOpenAdapter((char*)device); - - if (p->adapter == NULL) - { - free(p); - /* Adapter detected but we are not able to open it. Return failure. */ - snprintf(ebuf, PCAP_ERRBUF_SIZE, "Error opening adapter: %s", pcap_win32strerror()); - return NULL; - } - - /*get network type*/ - if(PacketGetNetType (p->adapter,&type) == FALSE) - { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "Cannot determine the network type: %s", pcap_win32strerror()); - goto bad; - } - - /*Set the linktype*/ - switch (type.LinkType) - { - case NdisMediumWan: - p->linktype = DLT_EN10MB; - break; - - case NdisMedium802_3: - p->linktype = DLT_EN10MB; - /* - * This is (presumably) a real Ethernet capture; give it a - * link-layer-type list with DLT_EN10MB and DLT_DOCSIS, so - * that an application can let you choose it, in case you're - * capturing DOCSIS traffic that a Cisco Cable Modem - * Termination System is putting out onto an Ethernet (it - * doesn't put an Ethernet header onto the wire, it puts raw - * DOCSIS frames out on the wire inside the low-level - * Ethernet framing). - */ - p->dlt_list = (u_int *) malloc(sizeof(u_int) * 2); - /* - * If that fails, just leave the list empty. - */ - if (p->dlt_list != NULL) { - p->dlt_list[0] = DLT_EN10MB; - p->dlt_list[1] = DLT_DOCSIS; - p->dlt_count = 2; - } - break; - - case NdisMediumFddi: - p->linktype = DLT_FDDI; - break; - - case NdisMedium802_5: - p->linktype = DLT_IEEE802; - break; - - case NdisMediumArcnetRaw: - p->linktype = DLT_ARCNET; - break; - - case NdisMediumArcnet878_2: - p->linktype = DLT_ARCNET; - break; - - case NdisMediumAtm: - p->linktype = DLT_ATM_RFC1483; - break; - - case NdisMediumCHDLC: - p->linktype = DLT_CHDLC; - break; - - case NdisMediumPPPSerial: - p->linktype = DLT_PPP_SERIAL; - break; - - case NdisMediumNull: - p->linktype = DLT_NULL; - break; - - case NdisMediumBare80211: - p->linktype = DLT_IEEE802_11; - break; - - case NdisMediumRadio80211: - p->linktype = DLT_IEEE802_11_RADIO; - break; - - case NdisMediumPpi: - p->linktype = DLT_PPI; - break; - - default: - p->linktype = DLT_EN10MB; /*an unknown adapter is assumed to be ethernet*/ - break; - } - - /* Set promiscuous mode */ - if (promisc) - { - - if (PacketSetHwFilter(p->adapter,NDIS_PACKET_TYPE_PROMISCUOUS) == FALSE) - { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "failed to set hardware filter to promiscuous mode"); - goto bad; - } - } - else - { - if (PacketSetHwFilter(p->adapter,NDIS_PACKET_TYPE_ALL_LOCAL) == FALSE) - { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "failed to set hardware filter to non-promiscuous mode"); - goto bad; - } - } - - /* Set the buffer size */ - p->bufsize = PcapBufSize; - - /* Store the timeout. Used by pcap_setnonblock() */ - p->timeout= to_ms; - - /* allocate Packet structure used during the capture */ - if((p->Packet = PacketAllocatePacket())==NULL) - { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "failed to allocate the PACKET structure"); - goto bad; - } - - if(!(p->adapter->Flags & INFO_FLAG_DAG_CARD)) - { - /* - * Traditional Adapter - */ - - p->buffer = (u_char *)malloc(PcapBufSize); - if (p->buffer == NULL) - { - snprintf(ebuf, PCAP_ERRBUF_SIZE, "malloc: %s", pcap_strerror(errno)); - goto bad; - } - - PacketInitPacket(p->Packet,(BYTE*)p->buffer,p->bufsize); - - p->snapshot = snaplen; - - /* allocate the standard buffer in the driver */ - if(PacketSetBuff( p->adapter, SIZE_BUF)==FALSE) - { - snprintf(ebuf, PCAP_ERRBUF_SIZE,"driver error: not enough memory to allocate the kernel buffer\n"); - goto bad; - } - - /* tell the driver to copy the buffer only if it contains at least 16K */ - if(PacketSetMinToCopy(p->adapter,16000)==FALSE) - { - snprintf(ebuf, PCAP_ERRBUF_SIZE,"Error calling PacketSetMinToCopy: %s\n", pcap_win32strerror()); - goto bad; - } - } - else -#ifdef HAVE_DAG_API - { - /* - * Dag Card - */ - LONG status; - HKEY dagkey; - DWORD lptype; - DWORD lpcbdata; - int postype = 0; - char keyname[512]; - - snprintf(keyname, sizeof(keyname), "%s\\CardParams\\%s", - "SYSTEM\\CurrentControlSet\\Services\\DAG", - strstr(_strlwr((char*)device), "dag")); - do - { - status = RegOpenKeyEx(HKEY_LOCAL_MACHINE, keyname, 0, KEY_READ, &dagkey); - if(status != ERROR_SUCCESS) - break; - - status = RegQueryValueEx(dagkey, - "PosType", - NULL, - &lptype, - (char*)&postype, - &lpcbdata); - - if(status != ERROR_SUCCESS) - { - postype = 0; - } - - RegCloseKey(dagkey); - } - while(FALSE); - - - p->snapshot = PacketSetSnapLen(p->adapter, snaplen); - - /* Set the length of the FCS associated to any packet. This value - * will be subtracted to the packet length */ - p->md.dag_fcs_bits = p->adapter->DagFcsLen; - } -#else - goto bad; -#endif /* HAVE_DAG_API */ - - PacketSetReadTimeout(p->adapter, to_ms); - -#ifdef HAVE_DAG_API - if(p->adapter->Flags & INFO_FLAG_DAG_CARD) - { - /* install dag specific handlers for read and setfilter */ - p->read_op = pcap_read_win32_dag; - p->setfilter_op = pcap_setfilter_win32_dag; - } - else - { -#endif /* HAVE_DAG_API */ - /* install traditional npf handlers for read and setfilter */ - p->read_op = pcap_read_win32_npf; - p->setfilter_op = pcap_setfilter_win32_npf; -#ifdef HAVE_DAG_API - } -#endif /* HAVE_DAG_API */ - p->setdirection_op = NULL; /* Not implemented. */ - /* XXX - can this be implemented on some versions of Windows? */ - p->inject_op = pcap_inject_win32; - p->set_datalink_op = NULL; /* can't change data link type */ - p->getnonblock_op = pcap_getnonblock_win32; - p->setnonblock_op = pcap_setnonblock_win32; - p->stats_op = pcap_stats_win32; - p->close_op = pcap_close_win32; - - return (p); -bad: - if (p->adapter) - PacketCloseAdapter(p->adapter); - if (p->buffer != NULL) - free(p->buffer); - if(p->Packet) - PacketFreePacket(p->Packet); - /* - * Get rid of any link-layer type list we allocated. - */ - if (p->dlt_list != NULL) - free(p->dlt_list); - free(p); - return (NULL); -} - - -static int -pcap_setfilter_win32_npf(pcap_t *p, struct bpf_program *fp) -{ - if(PacketSetBpf(p->adapter,fp)==FALSE){ - /* - * Kernel filter not installed. - * XXX - fall back on userland filtering, as is done - * on other platforms? - */ - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "Driver error: cannot set bpf filter: %s", pcap_win32strerror()); - return (-1); - } - - /* - * Discard any previously-received packets, as they might have - * passed whatever filter was formerly in effect, but might - * not pass this filter (BIOCSETF discards packets buffered - * in the kernel, so you can lose packets in any case). - */ - p->cc = 0; - return (0); -} - -/* - * We filter at user level, since the kernel driver does't process the packets - */ -static int -pcap_setfilter_win32_dag(pcap_t *p, struct bpf_program *fp) { - - if(!fp) - { - strncpy(p->errbuf, "setfilter: No filter specified", sizeof(p->errbuf)); - return -1; - } - - /* Install a user level filter */ - if (install_bpf_program(p, fp) < 0) - { - snprintf(p->errbuf, sizeof(p->errbuf), - "setfilter, unable to install the filter: %s", pcap_strerror(errno)); - return -1; - } - - p->md.use_bpf = 0; - - return (0); -} - -static int -pcap_getnonblock_win32(pcap_t *p, char *errbuf) -{ - /* - * XXX - if there were a PacketGetReadTimeout() call, we - * would use it, and return 1 if the timeout is -1 - * and 0 otherwise. - */ - return (p->nonblock); -} - -static int -pcap_setnonblock_win32(pcap_t *p, int nonblock, char *errbuf) -{ - int newtimeout; - - if (nonblock) { - /* - * Set the read timeout to -1 for non-blocking mode. - */ - newtimeout = -1; - } else { - /* - * Restore the timeout set when the device was opened. - * (Note that this may be -1, in which case we're not - * really leaving non-blocking mode.) - */ - newtimeout = p->timeout; - } - if (!PacketSetReadTimeout(p->adapter, newtimeout)) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, - "PacketSetReadTimeout: %s", pcap_win32strerror()); - return (-1); - } - p->nonblock = (newtimeout == -1); - return (0); -} - -/* Set the driver working mode */ -int -pcap_setmode(pcap_t *p, int mode){ - - if (p->adapter==NULL) - { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "impossible to set mode while reading from a file"); - return -1; - } - - if(PacketSetMode(p->adapter,mode)==FALSE) - { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "driver error: working mode not recognized"); - return -1; - } - - return 0; -} - -/* Set the dimension of the kernel-level capture buffer */ -int -pcap_setbuff(pcap_t *p, int dim) -{ - if (p->adapter==NULL) - { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "The kernel buffer size cannot be set while reading from a file"); - return -1; - } - - if(PacketSetBuff(p->adapter,dim)==FALSE) - { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "driver error: not enough memory to allocate the kernel buffer"); - return -1; - } - return 0; -} - -/*set the minimum amount of data that will release a read call*/ -int -pcap_setmintocopy(pcap_t *p, int size) -{ - if (p->adapter==NULL) - { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "Impossible to set the mintocopy parameter on an offline capture"); - return -1; - } - - if(PacketSetMinToCopy(p->adapter, size)==FALSE) - { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "driver error: unable to set the requested mintocopy size"); - return -1; - } - return 0; -} diff --git a/contrib/libpcap/pcap.3 b/contrib/libpcap/pcap.3 deleted file mode 100644 index 94b1f6a..0000000 --- a/contrib/libpcap/pcap.3 +++ /dev/null @@ -1,1312 +0,0 @@ -.\" @(#) $Header: /tcpdump/master/libpcap/pcap.3,v 1.64.2.11 2007/06/11 09:52:05 guy Exp $ -.\" -.\" Copyright (c) 1994, 1996, 1997 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that: (1) source code distributions -.\" retain the above copyright notice and this paragraph in its entirety, (2) -.\" distributions including binary code include the above copyright notice and -.\" this paragraph in its entirety in the documentation or other materials -.\" provided with the distribution, and (3) all advertising materials mentioning -.\" features or use of this software display the following acknowledgement: -.\" ``This product includes software developed by the University of California, -.\" Lawrence Berkeley Laboratory and its contributors.'' Neither the name of -.\" the University nor the names of its contributors may be used to endorse -.\" or promote products derived from this software without specific prior -.\" written permission. -.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED -.\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF -.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. -.\" -.TH PCAP 3 "27 February 2004" -.SH NAME -pcap \- Packet Capture library -.SH SYNOPSIS -.nf -.ft B -#include <pcap.h> -.ft -.LP -.nf -.ft B -char errbuf[PCAP_ERRBUF_SIZE]; -.ft -.LP -.ft B -pcap_t *pcap_open_live(const char *device, int snaplen, -.ti +8 -int promisc, int to_ms, char *errbuf) -pcap_t *pcap_open_dead(int linktype, int snaplen) -pcap_t *pcap_open_offline(const char *fname, char *errbuf) -pcap_t *pcap_fopen_offline(FILE *fp, char *errbuf) -pcap_dumper_t *pcap_dump_open(pcap_t *p, const char *fname) -pcap_dumper_t *pcap_dump_fopen(pcap_t *p, FILE *fp) -.ft -.LP -.ft B -int pcap_setnonblock(pcap_t *p, int nonblock, char *errbuf); -int pcap_getnonblock(pcap_t *p, char *errbuf); -.ft -.LP -.ft B -int pcap_findalldevs(pcap_if_t **alldevsp, char *errbuf) -void pcap_freealldevs(pcap_if_t *alldevs) -char *pcap_lookupdev(char *errbuf) -int pcap_lookupnet(const char *device, bpf_u_int32 *netp, -.ti +8 -bpf_u_int32 *maskp, char *errbuf) -.ft -.LP -.ft B -typedef void (*pcap_handler)(u_char *user, const struct pcap_pkthdr *h, -.ti +8 - const u_char *bytes); -.ft B -int pcap_dispatch(pcap_t *p, int cnt, -.ti +8 -pcap_handler callback, u_char *user) -int pcap_loop(pcap_t *p, int cnt, -.ti +8 -pcap_handler callback, u_char *user) -void pcap_dump(u_char *user, struct pcap_pkthdr *h, -.ti +8 -u_char *sp) -.ft -.LP -.ft B -int pcap_compile(pcap_t *p, struct bpf_program *fp, -.ti +8 -const char *str, int optimize, bpf_u_int32 netmask) -int pcap_setfilter(pcap_t *p, struct bpf_program *fp) -void pcap_freecode(struct bpf_program *) -int pcap_setdirection(pcap_t *p, pcap_direction_t d) -.ft -.LP -.ft B -const u_char *pcap_next(pcap_t *p, struct pcap_pkthdr *h) -int pcap_next_ex(pcap_t *p, struct pcap_pkthdr **pkt_header, -.ti +8 -const u_char **pkt_data) -.ft -.LP -.ft B -void pcap_breakloop(pcap_t *) -.ft -.LP -.ft B -int pcap_inject(pcap_t *p, const void *buf, size_t size) -int pcap_sendpacket(pcap_t *p, const u_char *buf, int size) -.ft -.LP -.ft B -int pcap_datalink(pcap_t *p) -int pcap_list_datalinks(pcap_t *p, int **dlt_buf); -int pcap_set_datalink(pcap_t *p, int dlt); -int pcap_datalink_name_to_val(const char *name); -const char *pcap_datalink_val_to_name(int dlt); -const char *pcap_datalink_val_to_description(int dlt); -int pcap_snapshot(pcap_t *p) -int pcap_is_swapped(pcap_t *p) -int pcap_major_version(pcap_t *p) -int pcap_minor_version(pcap_t *p) -int pcap_stats(pcap_t *p, struct pcap_stat *ps) -FILE *pcap_file(pcap_t *p) -int pcap_fileno(pcap_t *p) -int pcap_get_selectable_fd(pcap_t *p); -void pcap_perror(pcap_t *p, char *prefix) -char *pcap_geterr(pcap_t *p) -const char *pcap_strerror(int error) -const char *pcap_lib_version(void) -.ft -.LP -.ft B -void pcap_close(pcap_t *p) -int pcap_dump_flush(pcap_dumper_t *p) -long pcap_dump_ftell(pcap_dumper_t *p) -FILE *pcap_dump_file(pcap_dumper_t *p) -void pcap_dump_close(pcap_dumper_t *p) -.ft -.fi -.SH DESCRIPTION -The Packet Capture library -provides a high level interface to packet capture systems. All packets -on the network, even those destined for other hosts, are accessible -through this mechanism. -.PP -.SH ROUTINES -NOTE: -.I errbuf -in -.BR pcap_open_live() , -.BR pcap_open_dead() , -.BR pcap_open_offline() , -.BR pcap_fopen_offline() , -.BR pcap_setnonblock() , -.BR pcap_getnonblock() , -.BR pcap_findalldevs() , -.BR pcap_lookupdev() , -and -.B pcap_lookupnet() -is assumed to be able to hold at least -.B PCAP_ERRBUF_SIZE -chars. -.PP -.B pcap_open_live() -is used to obtain a packet capture descriptor to look -at packets on the network. -.I device -is a string that specifies the network device to open; on Linux systems -with 2.2 or later kernels, a -.I device -argument of "any" or -.B NULL -can be used to capture packets from all interfaces. -.I snaplen -specifies the maximum number of bytes to capture. If this value is less -than the size of a packet that is captured, only the first -.I snaplen -bytes of that packet will be captured and provided as packet data. A -value of 65535 should be sufficient, on most if not all networks, to -capture all the data available from the packet. -.I promisc -specifies if the interface is to be put into promiscuous mode. -(Note that even if this parameter is false, the interface -could well be in promiscuous mode for some other reason.) For now, this -doesn't work on the "any" device; if an argument of "any" or NULL is -supplied, the -.I promisc -flag is ignored. -.I to_ms -specifies the read timeout in milliseconds. The read timeout is used to -arrange that the read not necessarily return immediately when a packet -is seen, but that it wait for some amount of time to allow more packets -to arrive and to read multiple packets from the OS kernel in one -operation. Not all platforms support a read timeout; on platforms that -don't, the read timeout is ignored. A zero value for -.IR to_ms , -on platforms that support a read timeout, -will cause a read to wait forever to allow enough packets to -arrive, with no timeout. -.I errbuf -is used to return error or warning text. It will be set to error text when -.B pcap_open_live() -fails and returns -.BR NULL . -.I errbuf -may also be set to warning text when -.B pcap_open_live() -succeds; to detect this case the caller should store a zero-length string in -.I errbuf -before calling -.B pcap_open_live() -and display the warning to the user if -.I errbuf -is no longer a zero-length string. -.PP -.B pcap_open_dead() -is used for creating a -.B pcap_t -structure to use when calling the other functions in libpcap. It is -typically used when just using libpcap for compiling BPF code. -.PP -.B pcap_open_offline() -is called to open a ``savefile'' for reading. -.I fname -specifies the name of the file to open. The file has -the same format as those used by -.B tcpdump(1) -and -.BR tcpslice(1) . -The name "-" in a synonym for -.BR stdin . -Alternatively, you may call -.B pcap_fopen_offline() -to read dumped data from an existing open stream -.IR fp . -Note that on Windows, that stream should be opened in binary mode. -.I errbuf -is used to return error text and is only set when -.B pcap_open_offline() -or -.B pcap_fopen_offline() -fails and returns -.BR NULL . -.PP -.B pcap_dump_open() -is called to open a ``savefile'' for writing. The name "-" in a synonym -for -.BR stdout . -.B NULL -is returned on failure. -.I p -is a -.I pcap -struct as returned by -.B pcap_open_offline() -or -.BR pcap_open_live() . -.I fname -specifies the name of the file to open. Alternatively, you may call -.B pcap_dump_fopen() -to write data to an existing open stream -.IR fp . -Note that on Windows, that stream should be opened in binary mode. -If -.B NULL -is returned, -.B pcap_geterr() -can be used to get the error text. -.PP -.PP -.B pcap_setnonblock() -puts a capture descriptor, opened with -.BR pcap_open_live() , -into ``non-blocking'' mode, or takes it out of ``non-blocking'' mode, -depending on whether the -.I nonblock -argument is non-zero or zero. It has no effect on ``savefiles''. -If there is an error, \-1 is returned and -.I errbuf -is filled in with an appropriate error message; otherwise, 0 is -returned. -In -``non-blocking'' mode, an attempt to read from the capture descriptor -with -.B pcap_dispatch() -will, if no packets are currently available to be read, return 0 -immediately rather than blocking waiting for packets to arrive. -.B pcap_loop() -and -.B pcap_next() -will not work in ``non-blocking'' mode. -.PP -.B pcap_getnonblock() -returns the current ``non-blocking'' state of the capture descriptor; it -always returns 0 on ``savefiles''. -If there is an error, \-1 is returned and -.I errbuf -is filled in with an appropriate error message. -.PP -.B pcap_findalldevs() -constructs a list of network devices that can be opened with -.BR pcap_open_live() . -(Note that there may be network devices that cannot be opened with -.BR pcap_open_live() -by the -process calling -.BR pcap_findalldevs() , -because, for example, that process might not have sufficient privileges -to open them for capturing; if so, those devices will not appear on the -list.) -.I alldevsp -is set to point to the first element of the list; each element of the -list is of type -.BR pcap_if_t , -and has the following members: -.RS -.TP -.B next -if not -.BR NULL , -a pointer to the next element in the list; -.B NULL -for the last element of the list -.TP -.B name -a pointer to a string giving a name for the device to pass to -.B pcap_open_live() -.TP -.B description -if not -.BR NULL , -a pointer to a string giving a human-readable description of the device -.TP -.B addresses -a pointer to the first element of a list of addresses for the interface -.TP -.B flags -interface flags: -.RS -.TP -.B PCAP_IF_LOOPBACK -set if the interface is a loopback interface -.RE -.RE -.PP -Each element of the list of addresses is of type -.BR pcap_addr_t , -and has the following members: -.RS -.TP -.B next -if not -.BR NULL , -a pointer to the next element in the list; -.B NULL -for the last element of the list -.TP -.B addr -a pointer to a -.B "struct sockaddr" -containing an address -.TP -.B netmask -if not -.BR NULL , -a pointer to a -.B "struct sockaddr" -that contains the netmask corresponding to the address pointed to by -.B addr -.TP -.B broadaddr -if not -.BR NULL , -a pointer to a -.B "struct sockaddr" -that contains the broadcast address corresponding to the address pointed -to by -.BR addr ; -may be null if the interface doesn't support broadcasts -.TP -.B dstaddr -if not -.BR NULL , -a pointer to a -.B "struct sockaddr" -that contains the destination address corresponding to the address pointed -to by -.BR addr ; -may be null if the interface isn't a point-to-point interface -.RE -.PP -Note that not all the addresses in the list of addresses are -necessarily IPv4 or IPv6 addresses - you must check the -.B sa_family -member of the -.B "struct sockaddr" -before interpreting the contents of the address. -.PP -.B \-1 -is returned on failure, in which case -.B errbuf -is filled in with an appropriate error message; -.B 0 -is returned on success. -.PP -.B pcap_freealldevs() -is used to free a list allocated by -.BR pcap_findalldevs() . -.PP -.B pcap_lookupdev() -returns a pointer to a network device suitable for use with -.B pcap_open_live() -and -.BR pcap_lookupnet() . -If there is an error, -.B NULL -is returned and -.I errbuf -is filled in with an appropriate error message. -.PP -.B pcap_lookupnet() -is used to determine the network number and mask -associated with the network device -.BR device . -Both -.I netp -and -.I maskp -are -.I bpf_u_int32 -pointers. -A return of \-1 indicates an error in which case -.I errbuf -is filled in with an appropriate error message. -.PP -.B pcap_dispatch() -is used to collect and process packets. -.I cnt -specifies the maximum number of packets to process before returning. -This is not a minimum number; when reading a live capture, only one -bufferful of packets is read at a time, so fewer than -.I cnt -packets may be processed. A -.I cnt -of \-1 processes all the packets received in one buffer when reading a -live capture, or all the packets in the file when reading a -``savefile''. -.I callback -specifies a routine to be called with three arguments: -a -.I u_char -pointer which is passed in from -.BR pcap_dispatch() , -a -.I const struct pcap_pkthdr -pointer to a structure with the following members: -.RS -.TP -.B ts -a -.I struct timeval -containing the time when the packet was captured -.TP -.B caplen -a -.I bpf_u_int32 -giving the number of bytes of the packet that are available from the -capture -.TP -.B len -a -.I bpf_u_int32 -giving the length of the packet, in bytes (which might be more than the -number of bytes available from the capture, if the length of the packet -is larger than the maximum number of bytes to capture) -.RE -.PP -and a -.I const u_char -pointer to the first -.B caplen -(as given in the -.I struct pcap_pkthdr -a pointer to which is passed to the callback routine) -bytes of data from the packet (which won't necessarily be the entire -packet; to capture the entire packet, you will have to provide a value -for -.I snaplen -in your call to -.B pcap_open_live() -that is sufficiently large to get all of the packet's data - a value of -65535 should be sufficient on most if not all networks). -.PP -The number of packets read is returned. -0 is returned if no packets were read from a live capture (if, for -example, they were discarded because they didn't pass the packet filter, -or if, on platforms that support a read timeout that starts before any -packets arrive, the timeout expires before any packets arrive, or if the -file descriptor for the capture device is in non-blocking mode and no -packets were available to be read) or if no more packets are available -in a ``savefile.'' A return of \-1 indicates -an error in which case -.B pcap_perror() -or -.B pcap_geterr() -may be used to display the error text. -A return of \-2 indicates that the loop terminated due to a call to -.B pcap_breakloop() -before any packets were processed. -.ft B -If your application uses pcap_breakloop(), -make sure that you explicitly check for \-1 and \-2, rather than just -checking for a return value < 0. -.ft R -.PP -.BR NOTE : -when reading a live capture, -.B pcap_dispatch() -will not necessarily return when the read times out; on some platforms, -the read timeout isn't supported, and, on other platforms, the timer -doesn't start until at least one packet arrives. This means that the -read timeout should -.B NOT -be used in, for example, an interactive application, to allow the packet -capture loop to ``poll'' for user input periodically, as there's no -guarantee that -.B pcap_dispatch() -will return after the timeout expires. -.PP -.B pcap_loop() -is similar to -.B pcap_dispatch() -except it keeps reading packets until -.I cnt -packets are processed or an error occurs. -It does -.B not -return when live read timeouts occur. -Rather, specifying a non-zero read timeout to -.B pcap_open_live() -and then calling -.B pcap_dispatch() -allows the reception and processing of any packets that arrive when the -timeout occurs. -A negative -.I cnt -causes -.B pcap_loop() -to loop forever (or at least until an error occurs). \-1 is returned on -an error; 0 is returned if -.I cnt -is exhausted; \-2 is returned if the loop terminated due to a call to -.B pcap_breakloop() -before any packets were processed. -.ft B -If your application uses pcap_breakloop(), -make sure that you explicitly check for \-1 and \-2, rather than just -checking for a return value < 0. -.ft R -.PP -.B pcap_next() -reads the next packet (by calling -.B pcap_dispatch() -with a -.I cnt -of 1) and returns a -.I u_char -pointer to the data in that packet. (The -.I pcap_pkthdr -struct for that packet is not supplied.) -.B NULL -is returned if an error occured, or if no packets were read from a live -capture (if, for example, they were discarded because they didn't pass -the packet filter, or if, on platforms that support a read timeout that -starts before any packets arrive, the timeout expires before any packets -arrive, or if the file descriptor for the capture device is in -non-blocking mode and no packets were available to be read), or if no -more packets are available in a ``savefile.'' Unfortunately, there is -no way to determine whether an error occured or not. -.PP -.B pcap_next_ex() -reads the next packet and returns a success/failure indication: -.RS -.TP -1 -the packet was read without problems -.TP -0 -packets are being read from a live capture, and the timeout expired -.TP -\-1 -an error occurred while reading the packet -.TP -\-2 -packets are being read from a ``savefile'', and there are no more -packets to read from the savefile. -.RE -.PP -If the packet was read without problems, the pointer pointed to by the -.I pkt_header -argument is set to point to the -.I pcap_pkthdr -struct for the packet, and the -pointer pointed to by the -.I pkt_data -argument is set to point to the data in the packet. -.PP -.B pcap_breakloop() -sets a flag that will force -.B pcap_dispatch() -or -.B pcap_loop() -to return rather than looping; they will return the number of packets -that have been processed so far, or \-2 if no packets have been -processed so far. -.PP -This routine is safe to use inside a signal handler on UNIX or a console -control handler on Windows, as it merely sets a flag that is checked -within the loop. -.PP -The flag is checked in loops reading packets from the OS - a signal by -itself will not necessarily terminate those loops - as well as in loops -processing a set of packets returned by the OS. -.ft B -Note that if you are catching signals on UNIX systems that support -restarting system calls after a signal, and calling pcap_breakloop() -in the signal handler, you must specify, when catching those signals, -that system calls should NOT be restarted by that signal. Otherwise, -if the signal interrupted a call reading packets in a live capture, -when your signal handler returns after calling pcap_breakloop(), the -call will be restarted, and the loop will not terminate until more -packets arrive and the call completes. -.PP -Note also that, in a multi-threaded application, if one thread is -blocked in -.BR pcap_dispatch() , -.BR pcap_loop() , -.BR pcap_next() , -or -.BR pcap_next_ex() , -a call to -.B pcap_breakloop() -in a different thread will not unblock that thread; you will need to use -whatever mechanism the OS provides for breaking a thread out of blocking -calls in order to unblock the thread, such as thread cancellation in -systems that support POSIX threads. -.ft R -.PP -Note that -.B pcap_next() -will, on some platforms, loop reading packets from the OS; that loop -will not necessarily be terminated by a signal, so -.B pcap_breakloop() -should be used to terminate packet processing even if -.B pcap_next() -is being used. -.PP -.B pcap_breakloop() -does not guarantee that no further packets will be processed by -.B pcap_dispatch() -or -.B pcap_loop() -after it is called; at most one more packet might be processed. -.PP -If \-2 is returned from -.B pcap_dispatch() -or -.BR pcap_loop() , -the flag is cleared, so a subsequent call will resume reading packets. -If a positive number is returned, the flag is not cleared, so a -subsequent call will return \-2 and clear the flag. -.PP -.B pcap_inject() -sends a raw packet through the network interface; -.I buf -points to the data of the packet, including the link-layer header, and -.I size -is the number of bytes in the packet. -It returns the number of bytes written on success. A return of \-1 -indicates an error in which case -.B pcap_perror() -or -.B pcap_geterr() -may be used to display the error text. -Note that, even if you successfully open the network interface, you -might not have permission to send packets on it, or it might not support -sending packets; as -.I pcap_open_live() -doesn't have a flag to indicate whether to open for capturing, sending, -or capturing and sending, you cannot request an open that supports -sending and be notified at open time whether sending will be possible. -Note also that some devices might not support sending packets. -.PP -Note that, on some platforms, the link-layer header of the packet that's -sent might not be the same as the link-layer header of the packet -supplied to -.BR pcap_inject() , -as the source link-layer address, if the header contains such an -address, might be changed to be the address assigned to the interface on -which the packet it sent, if the platform doesn't support sending -completely raw and unchanged packets. Even worse, some drivers on some -platforms might change the link-layer type field to whatever value -libpcap used when attaching to the device, even on platforms that -.I do -nominally support sending completely raw and unchanged packets. -.PP -.B pcap_sendpacket() -is like -.BR pcap_inject() , -but it returns 0 on success and \-1 on failure. -.RB ( pcap_inject() -comes from OpenBSD; -.B pcap_sendpacket() -comes from WinPcap. Both are provided for compatibility.) -.PP -.B pcap_dump() -outputs a packet to the ``savefile'' opened with -.BR pcap_dump_open() . -Note that its calling arguments are suitable for use with -.B pcap_dispatch() -or -.BR pcap_loop() . -If called directly, the -.I user -parameter is of type -.I pcap_dumper_t -as returned by -.BR pcap_dump_open() . -.PP -.B pcap_compile() -is used to compile the string -.I str -into a filter program. -.I program -is a pointer to a -.I bpf_program -struct and is filled in by -.BR pcap_compile() . -.I optimize -controls whether optimization on the resulting code is performed. -.I netmask -specifies the IPv4 netmask of the network on which packets are being -captured; it is used only when checking for IPv4 broadcast addresses in -the filter program. If the netmask of the network on which packets are -being captured isn't known to the program, or if packets are being -captured on the Linux "any" pseudo-interface that can capture on more -than one network, a value of 0 can be supplied; tests for IPv4 broadcast -addreses won't be done correctly, but all other tests in the filter -program will be OK. A return of \-1 indicates an error in which case -.BR pcap_geterr() -may be used to display the error text. -.PP -.B pcap_compile_nopcap() -is similar to -.B pcap_compile() -except that instead of passing a pcap structure, one passes the -snaplen and linktype explicitly. It is intended to be used for -compiling filters for direct BPF usage, without necessarily having -called -.BR pcap_open() . -A return of \-1 indicates an error; the error text is unavailable. -.RB ( pcap_compile_nopcap() -is a wrapper around -.BR pcap_open_dead() , -.BR pcap_compile() , -and -.BR pcap_close() ; -the latter three routines can be used directly in order to get the error -text for a compilation error.) -.B -.PP -.B pcap_setfilter() -is used to specify a filter program. -.I fp -is a pointer to a -.I bpf_program -struct, usually the result of a call to -.BR pcap_compile() . -.B \-1 -is returned on failure, in which case -.BR pcap_geterr() -may be used to display the error text; -.B 0 -is returned on success. -.PP -.B pcap_freecode() -is used to free up allocated memory pointed to by a -.I bpf_program -struct generated by -.B pcap_compile() -when that BPF program is no longer needed, for example after it -has been made the filter program for a pcap structure by a call to -.BR pcap_setfilter() . -.PP -.B pcap_setdirection() -is used to specify a direction that packets will be captured. -.I pcap_direction_t -is one of the constants -.BR PCAP_D_IN , -.B PCAP_D_OUT -or -.BR PCAP_D_INOUT . -.B PCAP_D_IN -will only capture packets received by the device, -.B PCAP_D_OUT -will only capture packets sent by the device and -.B PCAP_D_INOUT -will capture packets received by or sent by the device. -.B PCAP_D_INOUT -is the default setting if this function is not called. This isn't -necessarily supported on all platforms; some platforms might return an -error, and some other platforms might not support -.BR PCAP_D_OUT . -This operation is not supported if a ``savefile'' is being read. -.B \-1 -is returned on failure, -.B 0 -is returned on success. -.PP -.B pcap_datalink() -returns the link layer type; link layer types it can return include: -.PP -.RS 5 -.TP 5 -.B DLT_NULL -BSD loopback encapsulation; the link layer header is a 4-byte field, in -.I host -byte order, containing a PF_ value from -.B socket.h -for the network-layer protocol of the packet. -.IP -Note that ``host byte order'' is the byte order of the machine on which -the packets are captured, and the PF_ values are for the OS of the -machine on which the packets are captured; if a live capture is being -done, ``host byte order'' is the byte order of the machine capturing the -packets, and the PF_ values are those of the OS of the machine capturing -the packets, but if a ``savefile'' is being read, the byte order and PF_ -values are -.I not -necessarily those of the machine reading the capture file. -.TP 5 -.B DLT_EN10MB -Ethernet (10Mb, 100Mb, 1000Mb, and up) -.TP 5 -.B DLT_IEEE802 -IEEE 802.5 Token Ring -.TP 5 -.B DLT_ARCNET -ARCNET -.TP 5 -.B DLT_SLIP -SLIP; the link layer header contains, in order: -.RS 10 -.LP -a 1-byte flag, which is 0 for packets received by the machine and 1 for -packets sent by the machine; -.LP -a 1-byte field, the upper 4 bits of which indicate the type of packet, -as per RFC 1144: -.RS 5 -.TP 5 -0x40 -an unmodified IP datagram (TYPE_IP); -.TP 5 -0x70 -an uncompressed-TCP IP datagram (UNCOMPRESSED_TCP), with that byte being -the first byte of the raw IP header on the wire, containing the -connection number in the protocol field; -.TP 5 -0x80 -a compressed-TCP IP datagram (COMPRESSED_TCP), with that byte being the -first byte of the compressed TCP/IP datagram header; -.RE -.LP -for UNCOMPRESSED_TCP, the rest of the modified IP header, and for -COMPRESSED_TCP, the compressed TCP/IP datagram header; -.RE -.RS 5 -.LP -for a total of 16 bytes; the uncompressed IP datagram follows the header. -.RE -.TP 5 -.B DLT_PPP -PPP; if the first 2 bytes are 0xff and 0x03, it's PPP in HDLC-like -framing, with the PPP header following those two bytes, otherwise it's -PPP without framing, and the packet begins with the PPP header. -.TP 5 -.B DLT_FDDI -FDDI -.TP 5 -.B DLT_ATM_RFC1483 -RFC 1483 LLC/SNAP-encapsulated ATM; the packet begins with an IEEE 802.2 -LLC header. -.TP 5 -.B DLT_RAW -raw IP; the packet begins with an IP header. -.TP 5 -.B DLT_PPP_SERIAL -PPP in HDLC-like framing, as per RFC 1662, or Cisco PPP with HDLC -framing, as per section 4.3.1 of RFC 1547; the first byte will be 0xFF -for PPP in HDLC-like framing, and will be 0x0F or 0x8F for Cisco PPP -with HDLC framing. -.TP 5 -.B DLT_PPP_ETHER -PPPoE; the packet begins with a PPPoE header, as per RFC 2516. -.TP 5 -.B DLT_C_HDLC -Cisco PPP with HDLC framing, as per section 4.3.1 of RFC 1547. -.TP 5 -.B DLT_IEEE802_11 -IEEE 802.11 wireless LAN -.TP 5 -.B DLT_FRELAY -Frame Relay -.TP 5 -.B DLT_LOOP -OpenBSD loopback encapsulation; the link layer header is a 4-byte field, in -.I network -byte order, containing a PF_ value from OpenBSD's -.B socket.h -for the network-layer protocol of the packet. -.IP -Note that, if a ``savefile'' is being read, those PF_ values are -.I not -necessarily those of the machine reading the capture file. -.TP 5 -.B DLT_LINUX_SLL -Linux "cooked" capture encapsulation; the link layer header contains, in -order: -.RS 10 -.LP -a 2-byte "packet type", in network byte order, which is one of: -.RS 5 -.TP 5 -0 -packet was sent to us by somebody else -.TP 5 -1 -packet was broadcast by somebody else -.TP 5 -2 -packet was multicast, but not broadcast, by somebody else -.TP 5 -3 -packet was sent by somebody else to somebody else -.TP 5 -4 -packet was sent by us -.RE -.LP -a 2-byte field, in network byte order, containing a Linux ARPHRD_ value -for the link layer device type; -.LP -a 2-byte field, in network byte order, containing the length of the -link layer address of the sender of the packet (which could be 0); -.LP -an 8-byte field containing that number of bytes of the link layer header -(if there are more than 8 bytes, only the first 8 are present); -.LP -a 2-byte field containing an Ethernet protocol type, in network byte -order, or containing 1 for Novell 802.3 frames without an 802.2 LLC -header or 4 for frames beginning with an 802.2 LLC header. -.RE -.TP 5 -.B DLT_LTALK -Apple LocalTalk; the packet begins with an AppleTalk LLAP header. -.TP 5 -.B DLT_PFLOG -OpenBSD pflog; the link layer header contains, in order: -.RS 10 -.LP -a 1-byte header length, in host byte order; -.LP -a 4-byte PF_ value, in host byte order; -.LP -a 2-byte action code, in network byte order, which is one of: -.RS 5 -.TP 5 -0 -passed -.TP 5 -1 -dropped -.TP 5 -2 -scrubbed -.RE -.LP -a 2-byte reason code, in network byte order, which is one of: -.RS 5 -.TP 5 -0 -match -.TP 5 -1 -bad offset -.TP 5 -2 -fragment -.TP 5 -3 -short -.TP 5 -4 -normalize -.TP 5 -5 -memory -.RE -.LP -a 16-character interface name; -.LP -a 16-character ruleset name (only meaningful if subrule is set); -.LP -a 4-byte rule number, in network byte order; -.LP -a 4-byte subrule number, in network byte order; -.LP -a 1-byte direction, in network byte order, which is one of: -.RS 5 -.TP 5 -0 -incoming or outgoing -.TP 5 -1 -incoming -.TP 5 -2 -outgoing -.RE -.RE -.TP 5 -.B DLT_PRISM_HEADER -Prism monitor mode information followed by an 802.11 header. -.TP 5 -.B DLT_IP_OVER_FC -RFC 2625 IP-over-Fibre Channel, with the link-layer header being the -Network_Header as described in that RFC. -.TP 5 -.B DLT_SUNATM -SunATM devices; the link layer header contains, in order: -.RS 10 -.LP -a 1-byte flag field, containing a direction flag in the uppermost bit, -which is set for packets transmitted by the machine and clear for -packets received by the machine, and a 4-byte traffic type in the -low-order 4 bits, which is one of: -.RS 5 -.TP 5 -0 -raw traffic -.TP 5 -1 -LANE traffic -.TP 5 -2 -LLC-encapsulated traffic -.TP 5 -3 -MARS traffic -.TP 5 -4 -IFMP traffic -.TP 5 -5 -ILMI traffic -.TP 5 -6 -Q.2931 traffic -.RE -.LP -a 1-byte VPI value; -.LP -a 2-byte VCI field, in network byte order. -.RE -.TP 5 -.B DLT_IEEE802_11_RADIO -link-layer information followed by an 802.11 header - see -http://www.shaftnet.org/~pizza/software/capturefrm.txt for a description -of the link-layer information. -.TP 5 -.B DLT_ARCNET_LINUX -ARCNET, with no exception frames, reassembled packets rather than raw -frames, and an extra 16-bit offset field between the destination host -and type bytes. -.TP 5 -.B DLT_LINUX_IRDA -Linux-IrDA packets, with a -.B DLT_LINUX_SLL -header followed by the IrLAP header. -.TP 5 -.B DLT_LINUX_LAPD -LAPD (Q.921) frames, with a -.B DLT_LINUX_SLL -header captured via vISDN. -.RE -.PP -.B pcap_list_datalinks() -is used to get a list of the supported data link types of the interface -associated with the pcap descriptor. -.B pcap_list_datalinks() -allocates an array to hold the list and sets -.IR *dlt_buf . -The caller is responsible for freeing the array. -.B \-1 -is returned on failure; -otherwise, the number of data link types in the array is returned. -.PP -.B pcap_set_datalink() -is used to set the current data link type of the pcap descriptor -to the type specified by -.IR dlt . -.B \-1 -is returned on failure. -.PP -.B pcap_datalink_name_to_val() -translates a data link type name, which is a -.B DLT_ -name with the -.B DLT_ -removed, to the corresponding data link type value. The translation -is case-insensitive. -.B \-1 -is returned on failure. -.PP -.B pcap_datalink_val_to_name() -translates a data link type value to the corresponding data link type -name. NULL is returned on failure. -.PP -.B pcap_datalink_val_to_description() -translates a data link type value to a short description of that data -link type. NULL is returned on failure. -.PP -.B pcap_snapshot() -returns the snapshot length specified when -.B pcap_open_live() -was called. -.PP -.B pcap_is_swapped() -returns true if the current ``savefile'' uses a different byte order -than the current system. -.PP -.B pcap_major_version() -returns the major number of the file format of the savefile; -.B pcap_minor_version() -returns the minor number of the file format of the savefile. The -version number is stored in the header of the savefile. -.PP -.B pcap_file() -returns the standard I/O stream of the ``savefile,'' if a ``savefile'' -was opened with -.BR pcap_open_offline() , -or NULL, if a network device was opened with -.BR pcap_open_live() . -.PP -.B pcap_stats() -returns 0 and fills in the -.B pcap_stat -structure pointed to by its second argument. The values represent -packet statistics from the start of the run to the time of the call. If -there is an error or the underlying packet capture doesn't support -packet statistics, \-1 is returned and the error text can be obtained -with -.B pcap_perror() -or -.BR pcap_geterr() . -.B pcap_stats() -is supported only on live captures, not on ``savefiles''; no statistics -are stored in ``savefiles'', so no statistics are available when reading -from a ``savefile''. -.PP -.B pcap_fileno() -returns the file descriptor number from which captured packets are read, -if a network device was opened with -.BR pcap_open_live() , -or \-1, if a ``savefile'' was opened with -.BR pcap_open_offline() . -.PP -.B pcap_get_selectable_fd() -returns, on UNIX, a file descriptor number for a file descriptor on -which one can -do a -.B select() -or -.B poll() -to wait for it to be possible to read packets without blocking, if such -a descriptor exists, or \-1, if no such descriptor exists. Some network -devices opened with -.B pcap_open_live() -do not support -.B select() -or -.B poll() -(for example, regular network devices on FreeBSD 4.3 and 4.4, and Endace -DAG devices), so \-1 is returned for those devices. -.PP -Note that on most versions of most BSDs (including Mac OS X) -.B select() -and -.B poll() -do not work correctly on BPF devices; -.B pcap_get_selectable_fd() -will return a file descriptor on most of those versions (the exceptions -being FreeBSD 4.3 and 4.4), a simple -.B select() -or -.B poll() -will not return even after a timeout specified in -.B pcap_open_live() -expires. To work around this, an application that uses -.B select() -or -.B poll() -to wait for packets to arrive must put the -.B pcap_t -in non-blocking mode, and must arrange that the -.B select() -or -.B poll() -have a timeout less than or equal to the timeout specified in -.BR pcap_open_live() , -and must try to read packets after that timeout expires, regardless of -whether -.B select() -or -.B poll() -indicated that the file descriptor for the -.B pcap_t -is ready to be read or not. (That workaround will not work in FreeBSD -4.3 and later; however, in FreeBSD 4.6 and later, -.B select() -and -.B poll() -work correctly on BPF devices, so the workaround isn't necessary, -although it does no harm.) -.PP -.B pcap_get_selectable_fd() -is not available on Windows. -.PP -.B pcap_perror() -prints the text of the last pcap library error on -.BR stderr , -prefixed by -.IR prefix . -.PP -.B pcap_geterr() -returns the error text pertaining to the last pcap library error. -.BR NOTE : -the pointer it returns will no longer point to a valid error message -string after the -.B pcap_t -passed to it is closed; you must use or copy the string before closing -the -.BR pcap_t . -.PP -.B pcap_strerror() -is provided in case -.BR strerror (1) -isn't available. -.PP -.B pcap_lib_version() -returns a pointer to a string giving information about the version of -the libpcap library being used; note that it contains more information -than just a version number. -.PP -.B pcap_close() -closes the files associated with -.I p -and deallocates resources. -.PP -.B pcap_dump_file() -returns the standard I/O stream of the ``savefile'' opened by -.BR pcap_dump_open(). -.PP -.B pcap_dump_flush() -flushes the output buffer to the ``savefile,'' so that any packets -written with -.B pcap_dump() -but not yet written to the ``savefile'' will be written. -.B \-1 -is returned on error, 0 on success. -.PP -.B pcap_dump_ftell() -returns the current file position for the ``savefile'', representing the -number of bytes written by -.B pcap_dump_open() -and -.BR pcap_dump() . -.B \-1 -is returned on error. -.PP -.B pcap_dump_close() -closes the ``savefile.'' -.PP -.SH SEE ALSO -tcpdump(1), tcpslice(1) -.SH AUTHORS -The original authors are: -.LP -Van Jacobson, -Craig Leres and -Steven McCanne, all of the -Lawrence Berkeley National Laboratory, University of California, Berkeley, CA. -.LP -The current version is available from "The Tcpdump Group"'s Web site at -.LP -.RS -.I http://www.tcpdump.org/ -.RE -.SH BUGS -Please send problems, bugs, questions, desirable enhancements, etc. to: -.LP -.RS -tcpdump-workers@tcpdump.org -.RE -.LP -Please send source code contributions, etc. to: -.LP -.RS -patches@tcpdump.org -.RE diff --git a/contrib/libpcap/pcap.c b/contrib/libpcap/pcap.c deleted file mode 100644 index 0822e1a..0000000 --- a/contrib/libpcap/pcap.c +++ /dev/null @@ -1,918 +0,0 @@ -/* - * Copyright (c) 1993, 1994, 1995, 1996, 1997, 1998 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the Computer Systems - * Engineering Group at Lawrence Berkeley Laboratory. - * 4. Neither the name of the University nor of the Laboratory may be used - * to endorse or promote products derived from this software without - * specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/pcap.c,v 1.88.2.19 2007/09/19 02:50:52 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#ifdef WIN32 -#include <pcap-stdinc.h> -#else /* WIN32 */ -#include <sys/types.h> -#endif /* WIN32 */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#if !defined(_MSC_VER) && !defined(__BORLANDC__) -#include <unistd.h> -#endif -#include <fcntl.h> -#include <errno.h> - -#ifdef HAVE_OS_PROTO_H -#include "os-proto.h" -#endif - -#ifdef MSDOS -#include "pcap-dos.h" -#endif - -#include "pcap-int.h" - -#ifdef HAVE_DAG_API -#include <dagnew.h> -#include <dagapi.h> -#endif - -int -pcap_dispatch(pcap_t *p, int cnt, pcap_handler callback, u_char *user) -{ - - return p->read_op(p, cnt, callback, user); -} - -/* - * XXX - is this necessary? - */ -int -pcap_read(pcap_t *p, int cnt, pcap_handler callback, u_char *user) -{ - - return p->read_op(p, cnt, callback, user); -} - -int -pcap_loop(pcap_t *p, int cnt, pcap_handler callback, u_char *user) -{ - register int n; - - for (;;) { - if (p->sf.rfile != NULL) { - /* - * 0 means EOF, so don't loop if we get 0. - */ - n = pcap_offline_read(p, cnt, callback, user); - } else { - /* - * XXX keep reading until we get something - * (or an error occurs) - */ - do { - n = p->read_op(p, cnt, callback, user); - } while (n == 0); - } - if (n <= 0) - return (n); - if (cnt > 0) { - cnt -= n; - if (cnt <= 0) - return (0); - } - } -} - -struct singleton { - struct pcap_pkthdr *hdr; - const u_char *pkt; -}; - - -static void -pcap_oneshot(u_char *userData, const struct pcap_pkthdr *h, const u_char *pkt) -{ - struct singleton *sp = (struct singleton *)userData; - *sp->hdr = *h; - sp->pkt = pkt; -} - -const u_char * -pcap_next(pcap_t *p, struct pcap_pkthdr *h) -{ - struct singleton s; - - s.hdr = h; - if (pcap_dispatch(p, 1, pcap_oneshot, (u_char*)&s) <= 0) - return (0); - return (s.pkt); -} - -struct pkt_for_fakecallback { - struct pcap_pkthdr *hdr; - const u_char **pkt; -}; - -static void -pcap_fakecallback(u_char *userData, const struct pcap_pkthdr *h, - const u_char *pkt) -{ - struct pkt_for_fakecallback *sp = (struct pkt_for_fakecallback *)userData; - - *sp->hdr = *h; - *sp->pkt = pkt; -} - -int -pcap_next_ex(pcap_t *p, struct pcap_pkthdr **pkt_header, - const u_char **pkt_data) -{ - struct pkt_for_fakecallback s; - - s.hdr = &p->pcap_header; - s.pkt = pkt_data; - - /* Saves a pointer to the packet headers */ - *pkt_header= &p->pcap_header; - - if (p->sf.rfile != NULL) { - int status; - - /* We are on an offline capture */ - status = pcap_offline_read(p, 1, pcap_fakecallback, - (u_char *)&s); - - /* - * Return codes for pcap_offline_read() are: - * - 0: EOF - * - -1: error - * - >1: OK - * The first one ('0') conflicts with the return code of - * 0 from pcap_read() meaning "no packets arrived before - * the timeout expired", so we map it to -2 so you can - * distinguish between an EOF from a savefile and a - * "no packets arrived before the timeout expired, try - * again" from a live capture. - */ - if (status == 0) - return (-2); - else - return (status); - } - - /* - * Return codes for pcap_read() are: - * - 0: timeout - * - -1: error - * - -2: loop was broken out of with pcap_breakloop() - * - >1: OK - * The first one ('0') conflicts with the return code of 0 from - * pcap_offline_read() meaning "end of file". - */ - return (p->read_op(p, 1, pcap_fakecallback, (u_char *)&s)); -} - -/* - * Force the loop in "pcap_read()" or "pcap_read_offline()" to terminate. - */ -void -pcap_breakloop(pcap_t *p) -{ - p->break_loop = 1; -} - -int -pcap_datalink(pcap_t *p) -{ - return (p->linktype); -} - -int -pcap_list_datalinks(pcap_t *p, int **dlt_buffer) -{ - if (p->dlt_count == 0) { - /* - * We couldn't fetch the list of DLTs, which means - * this platform doesn't support changing the - * DLT for an interface. Return a list of DLTs - * containing only the DLT this device supports. - */ - *dlt_buffer = (int*)malloc(sizeof(**dlt_buffer)); - if (*dlt_buffer == NULL) { - (void)snprintf(p->errbuf, sizeof(p->errbuf), - "malloc: %s", pcap_strerror(errno)); - return (-1); - } - **dlt_buffer = p->linktype; - return (1); - } else { - *dlt_buffer = (int*)calloc(sizeof(**dlt_buffer), p->dlt_count); - if (*dlt_buffer == NULL) { - (void)snprintf(p->errbuf, sizeof(p->errbuf), - "malloc: %s", pcap_strerror(errno)); - return (-1); - } - (void)memcpy(*dlt_buffer, p->dlt_list, - sizeof(**dlt_buffer) * p->dlt_count); - return (p->dlt_count); - } -} - -int -pcap_set_datalink(pcap_t *p, int dlt) -{ - int i; - const char *dlt_name; - - if (p->dlt_count == 0 || p->set_datalink_op == NULL) { - /* - * We couldn't fetch the list of DLTs, or we don't - * have a "set datalink" operation, which means - * this platform doesn't support changing the - * DLT for an interface. Check whether the new - * DLT is the one this interface supports. - */ - if (p->linktype != dlt) - goto unsupported; - - /* - * It is, so there's nothing we need to do here. - */ - return (0); - } - for (i = 0; i < p->dlt_count; i++) - if (p->dlt_list[i] == dlt) - break; - if (i >= p->dlt_count) - goto unsupported; - if (p->dlt_count == 2 && p->dlt_list[0] == DLT_EN10MB && - dlt == DLT_DOCSIS) { - /* - * This is presumably an Ethernet device, as the first - * link-layer type it offers is DLT_EN10MB, and the only - * other type it offers is DLT_DOCSIS. That means that - * we can't tell the driver to supply DOCSIS link-layer - * headers - we're just pretending that's what we're - * getting, as, presumably, we're capturing on a dedicated - * link to a Cisco Cable Modem Termination System, and - * it's putting raw DOCSIS frames on the wire inside low-level - * Ethernet framing. - */ - p->linktype = dlt; - return (0); - } - if (p->set_datalink_op(p, dlt) == -1) - return (-1); - p->linktype = dlt; - return (0); - -unsupported: - dlt_name = pcap_datalink_val_to_name(dlt); - if (dlt_name != NULL) { - (void) snprintf(p->errbuf, sizeof(p->errbuf), - "%s is not one of the DLTs supported by this device", - dlt_name); - } else { - (void) snprintf(p->errbuf, sizeof(p->errbuf), - "DLT %d is not one of the DLTs supported by this device", - dlt); - } - return (-1); -} - -struct dlt_choice { - const char *name; - const char *description; - int dlt; -}; - -#define DLT_CHOICE(code, description) { #code, description, code } -#define DLT_CHOICE_SENTINEL { NULL, NULL, 0 } - -static struct dlt_choice dlt_choices[] = { - DLT_CHOICE(DLT_NULL, "BSD loopback"), - DLT_CHOICE(DLT_EN10MB, "Ethernet"), - DLT_CHOICE(DLT_IEEE802, "Token ring"), - DLT_CHOICE(DLT_ARCNET, "ARCNET"), - DLT_CHOICE(DLT_SLIP, "SLIP"), - DLT_CHOICE(DLT_PPP, "PPP"), - DLT_CHOICE(DLT_FDDI, "FDDI"), - DLT_CHOICE(DLT_ATM_RFC1483, "RFC 1483 LLC-encapsulated ATM"), - DLT_CHOICE(DLT_RAW, "Raw IP"), - DLT_CHOICE(DLT_SLIP_BSDOS, "BSD/OS SLIP"), - DLT_CHOICE(DLT_PPP_BSDOS, "BSD/OS PPP"), - DLT_CHOICE(DLT_ATM_CLIP, "Linux Classical IP-over-ATM"), - DLT_CHOICE(DLT_PPP_SERIAL, "PPP over serial"), - DLT_CHOICE(DLT_PPP_ETHER, "PPPoE"), - DLT_CHOICE(DLT_C_HDLC, "Cisco HDLC"), - DLT_CHOICE(DLT_IEEE802_11, "802.11"), - DLT_CHOICE(DLT_FRELAY, "Frame Relay"), - DLT_CHOICE(DLT_LOOP, "OpenBSD loopback"), - DLT_CHOICE(DLT_ENC, "OpenBSD encapsulated IP"), - DLT_CHOICE(DLT_LINUX_SLL, "Linux cooked"), - DLT_CHOICE(DLT_LTALK, "Localtalk"), - DLT_CHOICE(DLT_PFLOG, "OpenBSD pflog file"), - DLT_CHOICE(DLT_PRISM_HEADER, "802.11 plus Prism header"), - DLT_CHOICE(DLT_IP_OVER_FC, "RFC 2625 IP-over-Fibre Channel"), - DLT_CHOICE(DLT_SUNATM, "Sun raw ATM"), - DLT_CHOICE(DLT_IEEE802_11_RADIO, "802.11 plus BSD radio information header"), - DLT_CHOICE(DLT_APPLE_IP_OVER_IEEE1394, "Apple IP-over-IEEE 1394"), - DLT_CHOICE(DLT_ARCNET_LINUX, "Linux ARCNET"), - DLT_CHOICE(DLT_DOCSIS, "DOCSIS"), - DLT_CHOICE(DLT_LINUX_IRDA, "Linux IrDA"), - DLT_CHOICE(DLT_LINUX_LAPD, "Linux vISDN LAPD"), - DLT_CHOICE(DLT_IEEE802_11_RADIO_AVS, "802.11 plus AVS radio information header"), - DLT_CHOICE(DLT_SYMANTEC_FIREWALL, "Symantec Firewall"), - DLT_CHOICE(DLT_JUNIPER_ATM1, "Juniper ATM1 PIC"), - DLT_CHOICE(DLT_JUNIPER_ATM2, "Juniper ATM2 PIC"), - DLT_CHOICE(DLT_JUNIPER_MLPPP, "Juniper Multi-Link PPP"), - DLT_CHOICE(DLT_PPP_PPPD, "PPP for pppd, with direction flag"), - DLT_CHOICE(DLT_JUNIPER_PPPOE, "Juniper PPPoE"), - DLT_CHOICE(DLT_JUNIPER_PPPOE_ATM, "Juniper PPPoE/ATM"), - DLT_CHOICE(DLT_GPRS_LLC, "GPRS LLC"), - DLT_CHOICE(DLT_GPF_T, "GPF-T"), - DLT_CHOICE(DLT_GPF_F, "GPF-F"), - DLT_CHOICE(DLT_JUNIPER_PIC_PEER, "Juniper PIC Peer"), - DLT_CHOICE(DLT_JUNIPER_MLFR, "Juniper Multi-Link Frame Relay"), - DLT_CHOICE(DLT_ERF_ETH, "Ethernet with Endace ERF header"), - DLT_CHOICE(DLT_ERF_POS, "Packet-over-SONET with Endace ERF header"), - DLT_CHOICE(DLT_JUNIPER_GGSN, "Juniper GGSN PIC"), - DLT_CHOICE(DLT_JUNIPER_ES, "Juniper Encryption Services PIC"), - DLT_CHOICE(DLT_JUNIPER_MONITOR, "Juniper Passive Monitor PIC"), - DLT_CHOICE(DLT_JUNIPER_SERVICES, "Juniper Advanced Services PIC"), - DLT_CHOICE(DLT_JUNIPER_MFR, "Juniper FRF.16 Frame Relay"), - DLT_CHOICE(DLT_JUNIPER_ETHER, "Juniper Ethernet"), - DLT_CHOICE(DLT_JUNIPER_PPP, "Juniper PPP"), - DLT_CHOICE(DLT_JUNIPER_FRELAY, "Juniper Frame Relay"), - DLT_CHOICE(DLT_JUNIPER_CHDLC, "Juniper C-HDLC"), - DLT_CHOICE(DLT_MFR, "FRF.16 Frame Relay"), - DLT_CHOICE(DLT_JUNIPER_VP, "Juniper Voice PIC"), - DLT_CHOICE(DLT_MTP2, "SS7 MTP2"), - DLT_CHOICE(DLT_A429, "Arinc 429"), - DLT_CHOICE(DLT_A653_ICM, "Arinc 653 Interpartition Communication"), - DLT_CHOICE(DLT_USB, "USB"), - DLT_CHOICE(DLT_BLUETOOTH_HCI_H4, "Bluetooth HCI UART transport layer"), - DLT_CHOICE(DLT_CAN20B, "Controller Area Network (CAN) v. 2.0B"), - DLT_CHOICE(DLT_MTP2_WITH_PHDR, "SS7 MTP2 with Pseudo-header"), - DLT_CHOICE_SENTINEL -}; - -/* - * This array is designed for mapping upper and lower case letter - * together for a case independent comparison. The mappings are - * based upon ascii character sequences. - */ -static const u_char charmap[] = { - (u_char)'\000', (u_char)'\001', (u_char)'\002', (u_char)'\003', - (u_char)'\004', (u_char)'\005', (u_char)'\006', (u_char)'\007', - (u_char)'\010', (u_char)'\011', (u_char)'\012', (u_char)'\013', - (u_char)'\014', (u_char)'\015', (u_char)'\016', (u_char)'\017', - (u_char)'\020', (u_char)'\021', (u_char)'\022', (u_char)'\023', - (u_char)'\024', (u_char)'\025', (u_char)'\026', (u_char)'\027', - (u_char)'\030', (u_char)'\031', (u_char)'\032', (u_char)'\033', - (u_char)'\034', (u_char)'\035', (u_char)'\036', (u_char)'\037', - (u_char)'\040', (u_char)'\041', (u_char)'\042', (u_char)'\043', - (u_char)'\044', (u_char)'\045', (u_char)'\046', (u_char)'\047', - (u_char)'\050', (u_char)'\051', (u_char)'\052', (u_char)'\053', - (u_char)'\054', (u_char)'\055', (u_char)'\056', (u_char)'\057', - (u_char)'\060', (u_char)'\061', (u_char)'\062', (u_char)'\063', - (u_char)'\064', (u_char)'\065', (u_char)'\066', (u_char)'\067', - (u_char)'\070', (u_char)'\071', (u_char)'\072', (u_char)'\073', - (u_char)'\074', (u_char)'\075', (u_char)'\076', (u_char)'\077', - (u_char)'\100', (u_char)'\141', (u_char)'\142', (u_char)'\143', - (u_char)'\144', (u_char)'\145', (u_char)'\146', (u_char)'\147', - (u_char)'\150', (u_char)'\151', (u_char)'\152', (u_char)'\153', - (u_char)'\154', (u_char)'\155', (u_char)'\156', (u_char)'\157', - (u_char)'\160', (u_char)'\161', (u_char)'\162', (u_char)'\163', - (u_char)'\164', (u_char)'\165', (u_char)'\166', (u_char)'\167', - (u_char)'\170', (u_char)'\171', (u_char)'\172', (u_char)'\133', - (u_char)'\134', (u_char)'\135', (u_char)'\136', (u_char)'\137', - (u_char)'\140', (u_char)'\141', (u_char)'\142', (u_char)'\143', - (u_char)'\144', (u_char)'\145', (u_char)'\146', (u_char)'\147', - (u_char)'\150', (u_char)'\151', (u_char)'\152', (u_char)'\153', - (u_char)'\154', (u_char)'\155', (u_char)'\156', (u_char)'\157', - (u_char)'\160', (u_char)'\161', (u_char)'\162', (u_char)'\163', - (u_char)'\164', (u_char)'\165', (u_char)'\166', (u_char)'\167', - (u_char)'\170', (u_char)'\171', (u_char)'\172', (u_char)'\173', - (u_char)'\174', (u_char)'\175', (u_char)'\176', (u_char)'\177', - (u_char)'\200', (u_char)'\201', (u_char)'\202', (u_char)'\203', - (u_char)'\204', (u_char)'\205', (u_char)'\206', (u_char)'\207', - (u_char)'\210', (u_char)'\211', (u_char)'\212', (u_char)'\213', - (u_char)'\214', (u_char)'\215', (u_char)'\216', (u_char)'\217', - (u_char)'\220', (u_char)'\221', (u_char)'\222', (u_char)'\223', - (u_char)'\224', (u_char)'\225', (u_char)'\226', (u_char)'\227', - (u_char)'\230', (u_char)'\231', (u_char)'\232', (u_char)'\233', - (u_char)'\234', (u_char)'\235', (u_char)'\236', (u_char)'\237', - (u_char)'\240', (u_char)'\241', (u_char)'\242', (u_char)'\243', - (u_char)'\244', (u_char)'\245', (u_char)'\246', (u_char)'\247', - (u_char)'\250', (u_char)'\251', (u_char)'\252', (u_char)'\253', - (u_char)'\254', (u_char)'\255', (u_char)'\256', (u_char)'\257', - (u_char)'\260', (u_char)'\261', (u_char)'\262', (u_char)'\263', - (u_char)'\264', (u_char)'\265', (u_char)'\266', (u_char)'\267', - (u_char)'\270', (u_char)'\271', (u_char)'\272', (u_char)'\273', - (u_char)'\274', (u_char)'\275', (u_char)'\276', (u_char)'\277', - (u_char)'\300', (u_char)'\341', (u_char)'\342', (u_char)'\343', - (u_char)'\344', (u_char)'\345', (u_char)'\346', (u_char)'\347', - (u_char)'\350', (u_char)'\351', (u_char)'\352', (u_char)'\353', - (u_char)'\354', (u_char)'\355', (u_char)'\356', (u_char)'\357', - (u_char)'\360', (u_char)'\361', (u_char)'\362', (u_char)'\363', - (u_char)'\364', (u_char)'\365', (u_char)'\366', (u_char)'\367', - (u_char)'\370', (u_char)'\371', (u_char)'\372', (u_char)'\333', - (u_char)'\334', (u_char)'\335', (u_char)'\336', (u_char)'\337', - (u_char)'\340', (u_char)'\341', (u_char)'\342', (u_char)'\343', - (u_char)'\344', (u_char)'\345', (u_char)'\346', (u_char)'\347', - (u_char)'\350', (u_char)'\351', (u_char)'\352', (u_char)'\353', - (u_char)'\354', (u_char)'\355', (u_char)'\356', (u_char)'\357', - (u_char)'\360', (u_char)'\361', (u_char)'\362', (u_char)'\363', - (u_char)'\364', (u_char)'\365', (u_char)'\366', (u_char)'\367', - (u_char)'\370', (u_char)'\371', (u_char)'\372', (u_char)'\373', - (u_char)'\374', (u_char)'\375', (u_char)'\376', (u_char)'\377', -}; - -int -pcap_strcasecmp(const char *s1, const char *s2) -{ - register const u_char *cm = charmap, - *us1 = (const u_char *)s1, - *us2 = (const u_char *)s2; - - while (cm[*us1] == cm[*us2++]) - if (*us1++ == '\0') - return(0); - return (cm[*us1] - cm[*--us2]); -} - -int -pcap_datalink_name_to_val(const char *name) -{ - int i; - - for (i = 0; dlt_choices[i].name != NULL; i++) { - if (pcap_strcasecmp(dlt_choices[i].name + sizeof("DLT_") - 1, - name) == 0) - return (dlt_choices[i].dlt); - } - return (-1); -} - -const char * -pcap_datalink_val_to_name(int dlt) -{ - int i; - - for (i = 0; dlt_choices[i].name != NULL; i++) { - if (dlt_choices[i].dlt == dlt) - return (dlt_choices[i].name + sizeof("DLT_") - 1); - } - return (NULL); -} - -const char * -pcap_datalink_val_to_description(int dlt) -{ - int i; - - for (i = 0; dlt_choices[i].name != NULL; i++) { - if (dlt_choices[i].dlt == dlt) - return (dlt_choices[i].description); - } - return (NULL); -} - -int -pcap_snapshot(pcap_t *p) -{ - return (p->snapshot); -} - -int -pcap_is_swapped(pcap_t *p) -{ - return (p->sf.swapped); -} - -int -pcap_major_version(pcap_t *p) -{ - return (p->sf.version_major); -} - -int -pcap_minor_version(pcap_t *p) -{ - return (p->sf.version_minor); -} - -FILE * -pcap_file(pcap_t *p) -{ - return (p->sf.rfile); -} - -int -pcap_fileno(pcap_t *p) -{ -#ifndef WIN32 - return (p->fd); -#else - if (p->adapter != NULL) - return ((int)(DWORD)p->adapter->hFile); - else - return (-1); -#endif -} - -#if !defined(WIN32) && !defined(MSDOS) -int -pcap_get_selectable_fd(pcap_t *p) -{ - return (p->selectable_fd); -} -#endif - -void -pcap_perror(pcap_t *p, char *prefix) -{ - fprintf(stderr, "%s: %s\n", prefix, p->errbuf); -} - -char * -pcap_geterr(pcap_t *p) -{ - return (p->errbuf); -} - -int -pcap_getnonblock(pcap_t *p, char *errbuf) -{ - return p->getnonblock_op(p, errbuf); -} - -/* - * Get the current non-blocking mode setting, under the assumption that - * it's just the standard POSIX non-blocking flag. - * - * We don't look at "p->nonblock", in case somebody tweaked the FD - * directly. - */ -#if !defined(WIN32) && !defined(MSDOS) -int -pcap_getnonblock_fd(pcap_t *p, char *errbuf) -{ - int fdflags; - - fdflags = fcntl(p->fd, F_GETFL, 0); - if (fdflags == -1) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "F_GETFL: %s", - pcap_strerror(errno)); - return (-1); - } - if (fdflags & O_NONBLOCK) - return (1); - else - return (0); -} -#endif - -int -pcap_setnonblock(pcap_t *p, int nonblock, char *errbuf) -{ - return p->setnonblock_op(p, nonblock, errbuf); -} - -#if !defined(WIN32) && !defined(MSDOS) -/* - * Set non-blocking mode, under the assumption that it's just the - * standard POSIX non-blocking flag. (This can be called by the - * per-platform non-blocking-mode routine if that routine also - * needs to do some additional work.) - */ -int -pcap_setnonblock_fd(pcap_t *p, int nonblock, char *errbuf) -{ - int fdflags; - - fdflags = fcntl(p->fd, F_GETFL, 0); - if (fdflags == -1) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "F_GETFL: %s", - pcap_strerror(errno)); - return (-1); - } - if (nonblock) - fdflags |= O_NONBLOCK; - else - fdflags &= ~O_NONBLOCK; - if (fcntl(p->fd, F_SETFL, fdflags) == -1) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "F_SETFL: %s", - pcap_strerror(errno)); - return (-1); - } - return (0); -} -#endif - -#ifdef WIN32 -/* - * Generate a string for the last Win32-specific error (i.e. an error generated when - * calling a Win32 API). - * For errors occurred during standard C calls, we still use pcap_strerror() - */ -char * -pcap_win32strerror(void) -{ - DWORD error; - static char errbuf[PCAP_ERRBUF_SIZE+1]; - int errlen; - char *p; - - error = GetLastError(); - FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, error, 0, errbuf, - PCAP_ERRBUF_SIZE, NULL); - - /* - * "FormatMessage()" "helpfully" sticks CR/LF at the end of the - * message. Get rid of it. - */ - errlen = strlen(errbuf); - if (errlen >= 2) { - errbuf[errlen - 1] = '\0'; - errbuf[errlen - 2] = '\0'; - } - p = strchr(errbuf, '\0'); - snprintf (p, sizeof(errbuf)-(p-errbuf), " (%lu)", error); - return (errbuf); -} -#endif - -/* - * Not all systems have strerror(). - */ -const char * -pcap_strerror(int errnum) -{ -#ifdef HAVE_STRERROR - return (strerror(errnum)); -#else - extern int sys_nerr; - extern const char *const sys_errlist[]; - static char ebuf[20]; - - if ((unsigned int)errnum < sys_nerr) - return ((char *)sys_errlist[errnum]); - (void)snprintf(ebuf, sizeof ebuf, "Unknown error: %d", errnum); - return(ebuf); -#endif -} - -int -pcap_setfilter(pcap_t *p, struct bpf_program *fp) -{ - return p->setfilter_op(p, fp); -} - -/* - * Set direction flag, which controls whether we accept only incoming - * packets, only outgoing packets, or both. - * Note that, depending on the platform, some or all direction arguments - * might not be supported. - */ -int -pcap_setdirection(pcap_t *p, pcap_direction_t d) -{ - if (p->setdirection_op == NULL) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, - "Setting direction is not implemented on this platform"); - return -1; - } else - return p->setdirection_op(p, d); -} - -int -pcap_stats(pcap_t *p, struct pcap_stat *ps) -{ - return p->stats_op(p, ps); -} - -static int -pcap_stats_dead(pcap_t *p, struct pcap_stat *ps _U_) -{ - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, - "Statistics aren't available from a pcap_open_dead pcap_t"); - return (-1); -} - -void -pcap_close_common(pcap_t *p) -{ - if (p->buffer != NULL) - free(p->buffer); -#if !defined(WIN32) && !defined(MSDOS) - if (p->fd >= 0) - close(p->fd); -#endif -} - -static void -pcap_close_dead(pcap_t *p _U_) -{ - /* Nothing to do. */ -} - -pcap_t * -pcap_open_dead(int linktype, int snaplen) -{ - pcap_t *p; - - p = malloc(sizeof(*p)); - if (p == NULL) - return NULL; - memset (p, 0, sizeof(*p)); - p->snapshot = snaplen; - p->linktype = linktype; - p->stats_op = pcap_stats_dead; - p->close_op = pcap_close_dead; - return p; -} - -/* - * API compatible with WinPcap's "send a packet" routine - returns -1 - * on error, 0 otherwise. - * - * XXX - what if we get a short write? - */ -int -pcap_sendpacket(pcap_t *p, const u_char *buf, int size) -{ - if (p->inject_op(p, buf, size) == -1) - return (-1); - return (0); -} - -/* - * API compatible with OpenBSD's "send a packet" routine - returns -1 on - * error, number of bytes written otherwise. - */ -int -pcap_inject(pcap_t *p, const void *buf, size_t size) -{ - return (p->inject_op(p, buf, size)); -} - -void -pcap_close(pcap_t *p) -{ - p->close_op(p); - if (p->dlt_list != NULL) - free(p->dlt_list); - pcap_freecode(&p->fcode); - free(p); -} - -/* - * We make the version string static, and return a pointer to it, rather - * than exporting the version string directly. On at least some UNIXes, - * if you import data from a shared library into an program, the data is - * bound into the program binary, so if the string in the version of the - * library with which the program was linked isn't the same as the - * string in the version of the library with which the program is being - * run, various undesirable things may happen (warnings, the string - * being the one from the version of the library with which the program - * was linked, or even weirder things, such as the string being the one - * from the library but being truncated). - */ -#ifdef HAVE_VERSION_H -#include "version.h" -#else -static const char pcap_version_string[] = "libpcap version 0.9.8"; -#endif - -#ifdef WIN32 -/* - * XXX - it'd be nice if we could somehow generate the WinPcap and libpcap - * version numbers when building WinPcap. (It'd be nice to do so for - * the packet.dll version number as well.) - */ -static const char wpcap_version_string[] = "4.0"; -static const char pcap_version_string_fmt[] = - "WinPcap version %s, based on %s"; -static const char pcap_version_string_packet_dll_fmt[] = - "WinPcap version %s (packet.dll version %s), based on %s"; -static char *full_pcap_version_string; - -const char * -pcap_lib_version(void) -{ - char *packet_version_string; - size_t full_pcap_version_string_len; - - if (full_pcap_version_string == NULL) { - /* - * Generate the version string. - */ - packet_version_string = PacketGetVersion(); - if (strcmp(wpcap_version_string, packet_version_string) == 0) { - /* - * WinPcap version string and packet.dll version - * string are the same; just report the WinPcap - * version. - */ - full_pcap_version_string_len = - (sizeof pcap_version_string_fmt - 4) + - strlen(wpcap_version_string) + - strlen(pcap_version_string); - full_pcap_version_string = - malloc(full_pcap_version_string_len); - sprintf(full_pcap_version_string, - pcap_version_string_fmt, wpcap_version_string, - pcap_version_string); - } else { - /* - * WinPcap version string and packet.dll version - * string are different; that shouldn't be the - * case (the two libraries should come from the - * same version of WinPcap), so we report both - * versions. - */ - full_pcap_version_string_len = - (sizeof pcap_version_string_packet_dll_fmt - 6) + - strlen(wpcap_version_string) + - strlen(packet_version_string) + - strlen(pcap_version_string); - full_pcap_version_string = malloc(full_pcap_version_string_len); - - sprintf(full_pcap_version_string, - pcap_version_string_packet_dll_fmt, - wpcap_version_string, packet_version_string, - pcap_version_string); - } - } - return (full_pcap_version_string); -} - -#elif defined(MSDOS) - -static char *full_pcap_version_string; - -const char * -pcap_lib_version (void) -{ - char *packet_version_string; - size_t full_pcap_version_string_len; - static char dospfx[] = "DOS-"; - - if (full_pcap_version_string == NULL) { - /* - * Generate the version string. - */ - full_pcap_version_string_len = - sizeof dospfx + strlen(pcap_version_string); - full_pcap_version_string = - malloc(full_pcap_version_string_len); - strcpy(full_pcap_version_string, dospfx); - strcat(full_pcap_version_string, pcap_version_string); - } - return (full_pcap_version_string); -} - -#else /* UN*X */ - -const char * -pcap_lib_version(void) -{ - return (pcap_version_string); -} -#endif diff --git a/contrib/libpcap/pcap.h b/contrib/libpcap/pcap.h deleted file mode 100644 index 9c8767e..0000000 --- a/contrib/libpcap/pcap.h +++ /dev/null @@ -1,324 +0,0 @@ -/* -*- Mode: c; tab-width: 8; indent-tabs-mode: 1; c-basic-offset: 8; -*- */ -/* - * Copyright (c) 1993, 1994, 1995, 1996, 1997 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the Computer Systems - * Engineering Group at Lawrence Berkeley Laboratory. - * 4. Neither the name of the University nor of the Laboratory may be used - * to endorse or promote products derived from this software without - * specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#) $Header: /tcpdump/master/libpcap/pcap.h,v 1.52.2.7 2007/06/11 09:52:05 guy Exp $ (LBL) - */ - -#ifndef lib_pcap_h -#define lib_pcap_h - -#if defined(WIN32) - #include <pcap-stdinc.h> -#elif defined(MSDOS) - #include <sys/types.h> - #include <sys/socket.h> /* u_int, u_char etc. */ -#else /* UN*X */ - #include <sys/types.h> - #include <sys/time.h> -#endif /* WIN32/MSDOS/UN*X */ - -#ifndef PCAP_DONT_INCLUDE_PCAP_BPF_H -#include <pcap-bpf.h> -#endif - -#include <stdio.h> - -#ifdef __cplusplus -extern "C" { -#endif - -#define PCAP_VERSION_MAJOR 2 -#define PCAP_VERSION_MINOR 4 - -#define PCAP_ERRBUF_SIZE 256 - -/* - * Compatibility for systems that have a bpf.h that - * predates the bpf typedefs for 64-bit support. - */ -#if BPF_RELEASE - 0 < 199406 -typedef int bpf_int32; -typedef u_int bpf_u_int32; -#endif - -typedef struct pcap pcap_t; -typedef struct pcap_dumper pcap_dumper_t; -typedef struct pcap_if pcap_if_t; -typedef struct pcap_addr pcap_addr_t; - -/* - * The first record in the file contains saved values for some - * of the flags used in the printout phases of tcpdump. - * Many fields here are 32 bit ints so compilers won't insert unwanted - * padding; these files need to be interchangeable across architectures. - * - * Do not change the layout of this structure, in any way (this includes - * changes that only affect the length of fields in this structure). - * - * Also, do not change the interpretation of any of the members of this - * structure, in any way (this includes using values other than - * LINKTYPE_ values, as defined in "savefile.c", in the "linktype" - * field). - * - * Instead: - * - * introduce a new structure for the new format, if the layout - * of the structure changed; - * - * send mail to "tcpdump-workers@tcpdump.org", requesting a new - * magic number for your new capture file format, and, when - * you get the new magic number, put it in "savefile.c"; - * - * use that magic number for save files with the changed file - * header; - * - * make the code in "savefile.c" capable of reading files with - * the old file header as well as files with the new file header - * (using the magic number to determine the header format). - * - * Then supply the changes to "patches@tcpdump.org", so that future - * versions of libpcap and programs that use it (such as tcpdump) will - * be able to read your new capture file format. - */ -struct pcap_file_header { - bpf_u_int32 magic; - u_short version_major; - u_short version_minor; - bpf_int32 thiszone; /* gmt to local correction */ - bpf_u_int32 sigfigs; /* accuracy of timestamps */ - bpf_u_int32 snaplen; /* max length saved portion of each pkt */ - bpf_u_int32 linktype; /* data link type (LINKTYPE_*) */ -}; - -typedef enum { - PCAP_D_INOUT = 0, - PCAP_D_IN, - PCAP_D_OUT -} pcap_direction_t; - -/* - * Generic per-packet information, as supplied by libpcap. - * - * The time stamp can and should be a "struct timeval", regardless of - * whether your system supports 32-bit tv_sec in "struct timeval", - * 64-bit tv_sec in "struct timeval", or both if it supports both 32-bit - * and 64-bit applications. The on-disk format of savefiles uses 32-bit - * tv_sec (and tv_usec); this structure is irrelevant to that. 32-bit - * and 64-bit versions of libpcap, even if they're on the same platform, - * should supply the appropriate version of "struct timeval", even if - * that's not what the underlying packet capture mechanism supplies. - */ -struct pcap_pkthdr { - struct timeval ts; /* time stamp */ - bpf_u_int32 caplen; /* length of portion present */ - bpf_u_int32 len; /* length this packet (off wire) */ -}; - -/* - * As returned by the pcap_stats() - */ -struct pcap_stat { - u_int ps_recv; /* number of packets received */ - u_int ps_drop; /* number of packets dropped */ - u_int ps_ifdrop; /* drops by interface XXX not yet supported */ -#ifdef WIN32 - u_int bs_capt; /* number of packets that reach the application */ -#endif /* WIN32 */ -}; - -#ifdef MSDOS -/* - * As returned by the pcap_stats_ex() - */ -struct pcap_stat_ex { - u_long rx_packets; /* total packets received */ - u_long tx_packets; /* total packets transmitted */ - u_long rx_bytes; /* total bytes received */ - u_long tx_bytes; /* total bytes transmitted */ - u_long rx_errors; /* bad packets received */ - u_long tx_errors; /* packet transmit problems */ - u_long rx_dropped; /* no space in Rx buffers */ - u_long tx_dropped; /* no space available for Tx */ - u_long multicast; /* multicast packets received */ - u_long collisions; - - /* detailed rx_errors: */ - u_long rx_length_errors; - u_long rx_over_errors; /* receiver ring buff overflow */ - u_long rx_crc_errors; /* recv'd pkt with crc error */ - u_long rx_frame_errors; /* recv'd frame alignment error */ - u_long rx_fifo_errors; /* recv'r fifo overrun */ - u_long rx_missed_errors; /* recv'r missed packet */ - - /* detailed tx_errors */ - u_long tx_aborted_errors; - u_long tx_carrier_errors; - u_long tx_fifo_errors; - u_long tx_heartbeat_errors; - u_long tx_window_errors; - }; -#endif - -/* - * Item in a list of interfaces. - */ -struct pcap_if { - struct pcap_if *next; - char *name; /* name to hand to "pcap_open_live()" */ - char *description; /* textual description of interface, or NULL */ - struct pcap_addr *addresses; - bpf_u_int32 flags; /* PCAP_IF_ interface flags */ -}; - -#define PCAP_IF_LOOPBACK 0x00000001 /* interface is loopback */ - -/* - * Representation of an interface address. - */ -struct pcap_addr { - struct pcap_addr *next; - struct sockaddr *addr; /* address */ - struct sockaddr *netmask; /* netmask for that address */ - struct sockaddr *broadaddr; /* broadcast address for that address */ - struct sockaddr *dstaddr; /* P2P destination address for that address */ -}; - -typedef void (*pcap_handler)(u_char *, const struct pcap_pkthdr *, - const u_char *); - -char *pcap_lookupdev(char *); -int pcap_lookupnet(const char *, bpf_u_int32 *, bpf_u_int32 *, char *); -pcap_t *pcap_open_live(const char *, int, int, int, char *); -pcap_t *pcap_open_dead(int, int); -pcap_t *pcap_open_offline(const char *, char *); -pcap_t *pcap_fopen_offline(FILE *, char *); -void pcap_close(pcap_t *); -int pcap_loop(pcap_t *, int, pcap_handler, u_char *); -int pcap_dispatch(pcap_t *, int, pcap_handler, u_char *); -const u_char* - pcap_next(pcap_t *, struct pcap_pkthdr *); -int pcap_next_ex(pcap_t *, struct pcap_pkthdr **, const u_char **); -void pcap_breakloop(pcap_t *); -int pcap_stats(pcap_t *, struct pcap_stat *); -int pcap_setfilter(pcap_t *, struct bpf_program *); -int pcap_setdirection(pcap_t *, pcap_direction_t); -int pcap_getnonblock(pcap_t *, char *); -int pcap_setnonblock(pcap_t *, int, char *); -void pcap_perror(pcap_t *, char *); -int pcap_inject(pcap_t *, const void *, size_t); -int pcap_sendpacket(pcap_t *, const u_char *, int); -const char *pcap_strerror(int); -char *pcap_geterr(pcap_t *); -int pcap_compile(pcap_t *, struct bpf_program *, const char *, int, - bpf_u_int32); -int pcap_compile_nopcap(int, int, struct bpf_program *, - const char *, int, bpf_u_int32); -void pcap_freecode(struct bpf_program *); -int pcap_datalink(pcap_t *); -int pcap_list_datalinks(pcap_t *, int **); -int pcap_set_datalink(pcap_t *, int); -int pcap_datalink_name_to_val(const char *); -const char *pcap_datalink_val_to_name(int); -const char *pcap_datalink_val_to_description(int); -int pcap_snapshot(pcap_t *); -int pcap_is_swapped(pcap_t *); -int pcap_major_version(pcap_t *); -int pcap_minor_version(pcap_t *); - -/* XXX */ -FILE *pcap_file(pcap_t *); -int pcap_fileno(pcap_t *); - -pcap_dumper_t *pcap_dump_open(pcap_t *, const char *); -pcap_dumper_t *pcap_dump_fopen(pcap_t *, FILE *fp); -FILE *pcap_dump_file(pcap_dumper_t *); -long pcap_dump_ftell(pcap_dumper_t *); -int pcap_dump_flush(pcap_dumper_t *); -void pcap_dump_close(pcap_dumper_t *); -void pcap_dump(u_char *, const struct pcap_pkthdr *, const u_char *); - -int pcap_findalldevs(pcap_if_t **, char *); -void pcap_freealldevs(pcap_if_t *); - -const char *pcap_lib_version(void); - -/* XXX this guy lives in the bpf tree */ -u_int bpf_filter(struct bpf_insn *, u_char *, u_int, u_int); -int bpf_validate(struct bpf_insn *f, int len); -char *bpf_image(struct bpf_insn *, int); -void bpf_dump(struct bpf_program *, int); - -#if defined(WIN32) - -/* - * Win32 definitions - */ - -int pcap_setbuff(pcap_t *p, int dim); -int pcap_setmode(pcap_t *p, int mode); -int pcap_setmintocopy(pcap_t *p, int size); - -#ifdef WPCAP -/* Include file with the wpcap-specific extensions */ -#include <Win32-Extensions.h> -#endif /* WPCAP */ - -#define MODE_CAPT 0 -#define MODE_STAT 1 -#define MODE_MON 2 - -#elif defined(MSDOS) - -/* - * MS-DOS definitions - */ - -int pcap_stats_ex (pcap_t *, struct pcap_stat_ex *); -void pcap_set_wait (pcap_t *p, void (*yield)(void), int wait); -u_long pcap_mac_packets (void); - -#else /* UN*X */ - -/* - * UN*X definitions - */ - -int pcap_get_selectable_fd(pcap_t *); - -#endif /* WIN32/MSDOS/UN*X */ - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/contrib/libpcap/pcap1.h b/contrib/libpcap/pcap1.h deleted file mode 100644 index 08d0c5a..0000000 --- a/contrib/libpcap/pcap1.h +++ /dev/null @@ -1,302 +0,0 @@ -/* -*- Mode: c; tab-width: 8; indent-tabs-mode: 1; c-basic-offset: 8; -*- */ -/* - * Copyright (c) 1993, 1994, 1995, 1996, 1997 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the Computer Systems - * Engineering Group at Lawrence Berkeley Laboratory. - * 4. Neither the name of the University nor of the Laboratory may be used - * to endorse or promote products derived from this software without - * specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#) $Header: /tcpdump/master/libpcap/pcap1.h,v 1.2 2004/03/30 14:42:50 mcr Exp $ (LBL) - */ - -#ifndef lib_pcap_h -#define lib_pcap_h - -#ifdef WIN32 -#include <pcap-stdinc.h> -#else /* WIN32 */ -#include <sys/types.h> -#include <sys/time.h> -#endif /* WIN32 */ - -#ifndef PCAP_DONT_INCLUDE_PCAP_BPF_H -#include <pcap-bpf.h> -#endif - -#include <stdio.h> - -#ifdef __cplusplus -extern "C" { -#endif - -#define PCAP_VERSION_MAJOR 3 -#define PCAP_VERSION_MINOR 0 - -#define PCAP_ERRBUF_SIZE 256 - -/* - * Compatibility for systems that have a bpf.h that - * predates the bpf typedefs for 64-bit support. - */ -#if BPF_RELEASE - 0 < 199406 -typedef int bpf_int32; -typedef u_int bpf_u_int32; -#endif - -typedef struct pcap pcap_t; -typedef struct pcap_dumper pcap_dumper_t; -typedef struct pcap_if pcap_if_t; -typedef struct pcap_addr pcap_addr_t; - -/* - * The first record in the file contains saved values for some - * of the flags used in the printout phases of tcpdump. - * Many fields here are 32 bit ints so compilers won't insert unwanted - * padding; these files need to be interchangeable across architectures. - * - * Do not change the layout of this structure, in any way (this includes - * changes that only affect the length of fields in this structure). - * - * Also, do not change the interpretation of any of the members of this - * structure, in any way (this includes using values other than - * LINKTYPE_ values, as defined in "savefile.c", in the "linktype" - * field). - * - * Instead: - * - * introduce a new structure for the new format, if the layout - * of the structure changed; - * - * send mail to "tcpdump-workers@tcpdump.org", requesting a new - * magic number for your new capture file format, and, when - * you get the new magic number, put it in "savefile.c"; - * - * use that magic number for save files with the changed file - * header; - * - * make the code in "savefile.c" capable of reading files with - * the old file header as well as files with the new file header - * (using the magic number to determine the header format). - * - * Then supply the changes to "patches@tcpdump.org", so that future - * versions of libpcap and programs that use it (such as tcpdump) will - * be able to read your new capture file format. - */ - -enum pcap1_info_types { - PCAP_DATACAPTURE, - PCAP_TIMESTAMP, - PCAP_WALLTIME, - PCAP_TIMESKEW, - PCAP_PROBEPLACE, /* aka direction */ - PCAP_COMMENT, /* comment */ -}; - -struct pcap1_info_container { - bpf_u_int32 info_len; /* in bytes */ - bpf_u_int32 info_type; /* enum pcap1_info_types */ - unsigned char info_data[0]; -}; - -struct pcap1_info_timestamp { - struct pcap1_info_container pic; - bpf_u_int32 nanoseconds; /* 10^-9 of seconds */ - bpf_u_int32 seconds; /* seconds since Unix epoch - GMT */ - bpf_u_int16 macroseconds; /* 16 bits more of MSB of time */ - bpf_u_int16 sigfigs; /* accuracy of timestamps - LSB bits */ -}; - -struct pcap1_info_packet { - struct pcap1_info_container pic; - bpf_u_int32 caplen; /* length of portion present */ - bpf_u_int32 len; /* length this packet (off wire) */ - bpf_u_int32 linktype; /* data link type (LINKTYPE_*) */ - bpf_u_int32 ifIndex; /* abstracted interface index */ - unsigned char packet_data[0]; -}; - -enum pcap1_probe { - INBOUND =1, - OUTBOUND =2, - FORWARD =3, - PREENCAP =4, - POSTDECAP=5, -}; - -struct pcap1_info_probe { - struct pcap1_info_container pic; - bpf_u_int32 probeloc; /* enum pcap1_probe */ - unsigned char probe_desc[0]; -}; - -struct pcap1_info_comment { - struct pcap1_info_container pic; - unsigned char comment[0]; -}; - -struct pcap1_packet_header { - bpf_u_int32 magic; - u_short version_major; - u_short version_minor; - bpf_u_int32 block_len; - struct pcap1_info_container pics[0]; -}; - -/* - * Each packet in the dump file is prepended with this generic header. - * This gets around the problem of different headers for different - * packet interfaces. - */ - -/* - * As returned by the pcap_stats() - */ -struct pcap_stat { - u_int ps_recv; /* number of packets received */ - u_int ps_drop; /* number of packets dropped */ - u_int ps_ifdrop; /* drops by interface XXX not yet supported */ -#ifdef WIN32 - u_int bs_capt; /* number of packets that reach the application */ -#endif /* WIN32 */ -}; - -/* - * Item in a list of interfaces. - */ -struct pcap_if { - struct pcap_if *next; - char *name; /* name to hand to "pcap_open_live()" */ - char *description; /* textual description of interface, or NULL */ - struct pcap_addr *addresses; - bpf_u_int32 flags; /* PCAP_IF_ interface flags */ -}; - -#define PCAP_IF_LOOPBACK 0x00000001 /* interface is loopback */ - -/* - * Representation of an interface address. - */ -struct pcap_addr { - struct pcap_addr *next; - struct sockaddr *addr; /* address */ - struct sockaddr *netmask; /* netmask for that address */ - struct sockaddr *broadaddr; /* broadcast address for that address */ - struct sockaddr *dstaddr; /* P2P destination address for that address */ -}; - -typedef void (*pcap_handler)(u_char *, const struct pcap_pkthdr *, - const u_char *); - -char *pcap_lookupdev(char *); -int pcap_lookupnet(const char *, bpf_u_int32 *, bpf_u_int32 *, char *); -pcap_t *pcap_open_live(const char *, int, int, int, char *); -pcap_t *pcap_open_dead(int, int); -pcap_t *pcap_open_offline(const char *, char *); -void pcap_close(pcap_t *); -int pcap_loop(pcap_t *, int, pcap_handler, u_char *); -int pcap_dispatch(pcap_t *, int, pcap_handler, u_char *); -const u_char* - pcap_next(pcap_t *, struct pcap_pkthdr *); -int pcap_next_ex(pcap_t *, struct pcap_pkthdr **, const u_char **); -void pcap_breakloop(pcap_t *); -int pcap_stats(pcap_t *, struct pcap_stat *); -int pcap_setfilter(pcap_t *, struct bpf_program *); -int pcap_getnonblock(pcap_t *, char *); -int pcap_setnonblock(pcap_t *, int, char *); -void pcap_perror(pcap_t *, char *); -char *pcap_strerror(int); -char *pcap_geterr(pcap_t *); -int pcap_compile(pcap_t *, struct bpf_program *, char *, int, - bpf_u_int32); -int pcap_compile_nopcap(int, int, struct bpf_program *, - char *, int, bpf_u_int32); -void pcap_freecode(struct bpf_program *); -int pcap_datalink(pcap_t *); -int pcap_list_datalinks(pcap_t *, int **); -int pcap_set_datalink(pcap_t *, int); -int pcap_datalink_name_to_val(const char *); -const char *pcap_datalink_val_to_name(int); -const char *pcap_datalink_val_to_description(int); -int pcap_snapshot(pcap_t *); -int pcap_is_swapped(pcap_t *); -int pcap_major_version(pcap_t *); -int pcap_minor_version(pcap_t *); - -/* XXX */ -FILE *pcap_file(pcap_t *); -int pcap_fileno(pcap_t *); - -pcap_dumper_t *pcap_dump_open(pcap_t *, const char *); -int pcap_dump_flush(pcap_dumper_t *); -void pcap_dump_close(pcap_dumper_t *); -void pcap_dump(u_char *, const struct pcap_pkthdr *, const u_char *); -FILE *pcap_dump_file(pcap_dumper_t *); - -int pcap_findalldevs(pcap_if_t **, char *); -void pcap_freealldevs(pcap_if_t *); - -const char *pcap_lib_version(void); - -/* XXX this guy lives in the bpf tree */ -u_int bpf_filter(struct bpf_insn *, u_char *, u_int, u_int); -int bpf_validate(struct bpf_insn *f, int len); -char *bpf_image(struct bpf_insn *, int); -void bpf_dump(struct bpf_program *, int); - -#ifdef WIN32 -/* - * Win32 definitions - */ - -int pcap_setbuff(pcap_t *p, int dim); -int pcap_setmode(pcap_t *p, int mode); -int pcap_sendpacket(pcap_t *p, u_char *buf, int size); -int pcap_setmintocopy(pcap_t *p, int size); - -#ifdef WPCAP -/* Include file with the wpcap-specific extensions */ -#include <Win32-Extensions.h> -#endif - -#define MODE_CAPT 0 -#define MODE_STAT 1 - -#else -/* - * UN*X definitions - */ - -int pcap_get_selectable_fd(pcap_t *); - -#endif /* WIN32 */ - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/contrib/libpcap/pf.h b/contrib/libpcap/pf.h deleted file mode 100644 index a9b127a..0000000 --- a/contrib/libpcap/pf.h +++ /dev/null @@ -1,77 +0,0 @@ -/* - * Copyright (c) 2001 Daniel Hartmeier - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * - Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and/or other materials provided - * with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER - * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - * @(#) $Header: /tcpdump/master/libpcap/pf.h,v 1.3 2004/04/02 06:33:30 guy Exp $ (LBL) - */ - -/* from $OpenBSD: pfvar.h,v 1.170 2003/08/22 21:50:34 david Exp $ */ - -enum { PF_INOUT=0, PF_IN=1, PF_OUT=2 }; -enum { PF_PASS=0, PF_DROP=1, PF_SCRUB=2, PF_NAT=3, PF_NONAT=4, - PF_BINAT=5, PF_NOBINAT=6, PF_RDR=7, PF_NORDR=8, PF_SYNPROXY_DROP=9 }; - -/* Reasons code for passing/dropping a packet */ -#define PFRES_MATCH 0 /* Explicit match of a rule */ -#define PFRES_BADOFF 1 /* Bad offset for pull_hdr */ -#define PFRES_FRAG 2 /* Dropping following fragment */ -#define PFRES_SHORT 3 /* Dropping short packet */ -#define PFRES_NORM 4 /* Dropping by normalizer */ -#define PFRES_MEMORY 5 /* Dropped due to lacking mem */ -#define PFRES_MAX 6 /* total+1 */ - -#define PFRES_NAMES { \ - "match", \ - "bad-offset", \ - "fragment", \ - "short", \ - "normalize", \ - "memory", \ - NULL \ -} - -#define PF_RULESET_NAME_SIZE 16 - -/* from $OpenBSD: if_pflog.h,v 1.9 2003/07/15 20:27:27 dhartmei Exp $ */ - -#ifndef IFNAMSIZ -#define IFNAMSIZ 16 -#endif - -struct pfloghdr { - u_int8_t length; - u_int8_t af; - u_int8_t action; - u_int8_t reason; - char ifname[IFNAMSIZ]; - char ruleset[PF_RULESET_NAME_SIZE]; - u_int32_t rulenr; - u_int32_t subrulenr; - u_int8_t dir; - u_int8_t pad[3]; -}; -#define PFLOG_HDRLEN sizeof(struct pfloghdr) diff --git a/contrib/libpcap/ppp.h b/contrib/libpcap/ppp.h deleted file mode 100644 index 80a6851..0000000 --- a/contrib/libpcap/ppp.h +++ /dev/null @@ -1,58 +0,0 @@ -/* @(#) $Header: /tcpdump/master/libpcap/ppp.h,v 1.12 2005/02/08 19:52:19 guy Exp $ (LBL) */ -/* - * Point to Point Protocol (PPP) RFC1331 - * - * Copyright 1989 by Carnegie Mellon. - * - * Permission to use, copy, modify, and distribute this program for any - * purpose and without fee is hereby granted, provided that this copyright - * and permission notice appear on all copies and supporting documentation, - * the name of Carnegie Mellon not be used in advertising or publicity - * pertaining to distribution of the program without specific prior - * permission, and notice be given in supporting documentation that copying - * and distribution is by permission of Carnegie Mellon and Stanford - * University. Carnegie Mellon makes no representations about the - * suitability of this software for any purpose. It is provided "as is" - * without express or implied warranty. - */ -#define PPP_ADDRESS 0xff /* The address byte value */ -#define PPP_CONTROL 0x03 /* The control byte value */ - -#define PPP_PPPD_IN 0x00 /* non-standard for DLT_PPP_PPPD */ -#define PPP_PPPD_OUT 0x01 /* non-standard for DLT_PPP_PPPD */ - -/* Protocol numbers */ -#define PPP_IP 0x0021 /* Raw IP */ -#define PPP_OSI 0x0023 /* OSI Network Layer */ -#define PPP_NS 0x0025 /* Xerox NS IDP */ -#define PPP_DECNET 0x0027 /* DECnet Phase IV */ -#define PPP_APPLE 0x0029 /* Appletalk */ -#define PPP_IPX 0x002b /* Novell IPX */ -#define PPP_VJC 0x002d /* Van Jacobson Compressed TCP/IP */ -#define PPP_VJNC 0x002f /* Van Jacobson Uncompressed TCP/IP */ -#define PPP_BRPDU 0x0031 /* Bridging PDU */ -#define PPP_STII 0x0033 /* Stream Protocol (ST-II) */ -#define PPP_VINES 0x0035 /* Banyan Vines */ -#define PPP_IPV6 0x0057 /* Internet Protocol version 6 */ - -#define PPP_HELLO 0x0201 /* 802.1d Hello Packets */ -#define PPP_LUXCOM 0x0231 /* Luxcom */ -#define PPP_SNS 0x0233 /* Sigma Network Systems */ -#define PPP_MPLS_UCAST 0x0281 /* rfc 3032 */ -#define PPP_MPLS_MCAST 0x0283 /* rfc 3022 */ - -#define PPP_IPCP 0x8021 /* IP Control Protocol */ -#define PPP_OSICP 0x8023 /* OSI Network Layer Control Protocol */ -#define PPP_NSCP 0x8025 /* Xerox NS IDP Control Protocol */ -#define PPP_DECNETCP 0x8027 /* DECnet Control Protocol */ -#define PPP_APPLECP 0x8029 /* Appletalk Control Protocol */ -#define PPP_IPXCP 0x802b /* Novell IPX Control Protocol */ -#define PPP_STIICP 0x8033 /* Strean Protocol Control Protocol */ -#define PPP_VINESCP 0x8035 /* Banyan Vines Control Protocol */ -#define PPP_IPV6CP 0x8057 /* IPv6 Control Protocol */ -#define PPP_MPLSCP 0x8281 /* rfc 3022 */ - -#define PPP_LCP 0xc021 /* Link Control Protocol */ -#define PPP_PAP 0xc023 /* Password Authentication Protocol */ -#define PPP_LQM 0xc025 /* Link Quality Monitoring */ -#define PPP_CHAP 0xc223 /* Challenge Handshake Authentication Protocol */ diff --git a/contrib/libpcap/rawss7.h b/contrib/libpcap/rawss7.h deleted file mode 100644 index 8f8d058..0000000 --- a/contrib/libpcap/rawss7.h +++ /dev/null @@ -1,105 +0,0 @@ -/* -*- Mode: c; tab-width: 8; indent-tabs-mode: 1; c-basic-offset: 8; -*- */ -/* - * Copyright (c) 2003 - The tcpdump group. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor of the Laboratory may be used - * to endorse or promote products derived from this software without - * specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#) $Header: /tcpdump/master/libpcap/rawss7.h,v 1.1 2003/09/10 19:55:36 mcr Exp $ (LBL) - */ - -/* - * This file is never used in libpcap or tcpdump. It is provided as - * documentation linktypes 139 through 142 only. - */ - -/* - * Date: Tue, 09 Sep 2003 09:41:04 -0400 - * From: Jeff Morriss <jeff.morriss[AT]ulticom.com> - * To: tcpdump-workers@tcpdump.org - * Subject: [tcpdump-workers] request for LINKTYPE_ - * - * We've had some discussion over on ethereal-dev about a "fake link" or - * "raw SS7" dissector that allows dumping an arbitrary protocol into a - * file without any (otherwise necessary) lower level protocols. The - * common example has been dumping MTP3 into a file without, well, MTP2 or - * M2PA. - * - * We want to store these protocols directly in PCAP file format because - * it's well defined and there isn't another (popular) file format for - * capturing SS7 messages that we can reverse engineer (and we want to read - * these files into Ethereal). Rather than creating a new file format, it's - * a lot easier to just allocate a LINKTYPE_. - * - * Here is the original post thread: - * - * http://ethereal.com/lists/ethereal-dev/200306/threads.html#00200 - * - * July's thread on the subject: - * - * http://ethereal.com/lists/ethereal-dev/200307/threads.html#00124 - * - * August's thread: - * - * http://ethereal.com/lists/ethereal-dev/200308/threads.html#00193 - * - * - * and one of the last messages--which is why I'm mailing you today: - * - * http://ethereal.com/lists/ethereal-dev/200308/msg00193.html - * - * - * Based on the message in the last URL, I'd like to request a new - * LINKTYPE_: LINKTYPE_RAWSS7. - * - * This packets in this file type will contain a header: - */ - -typedef struct _rawss7_hdr { - /* NOTE: These are in network-byte order. */ - guint32 type; - guint16 length; - guint16 spare; -} rawss7_hdr; - -/* - * - * followed by protocol data for whatever protocol 'type' indicates. - * - * There was some discussion about these protocol 'type's being allocated by - * tcpdump-workers as well. In fact it would be handy to have one place to - * allocate such numbers, so what do you think about allocating 3 more (for - * now) LINKTYPE_'s: - */ - -#define LINKTYPE_RAWSS7_MTP2 140 -#define LINKTYPE_RAWSS7_MTP3 141 -#define LINKTYPE_RAWSS7_SCCP 142 - -/* - * - * There is no reason this can't be used to store non-SS7 protocols, but - * it's what we need to use it for now... - * - */ diff --git a/contrib/libpcap/savefile.c b/contrib/libpcap/savefile.c deleted file mode 100644 index e5a5403..0000000 --- a/contrib/libpcap/savefile.c +++ /dev/null @@ -1,1493 +0,0 @@ -/* - * Copyright (c) 1993, 1994, 1995, 1996, 1997 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * savefile.c - supports offline use of tcpdump - * Extraction/creation by Jeffrey Mogul, DECWRL - * Modified by Steve McCanne, LBL. - * - * Used to save the received packet headers, after filtering, to - * a file, and then read them later. - * The first record in the file contains saved values for the machine - * dependent values so we can print the dump file on any architecture. - */ - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/savefile.c,v 1.126.2.30 2007/08/14 20:57:49 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <errno.h> -#include <memory.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "pcap-int.h" - -#ifdef HAVE_OS_PROTO_H -#include "os-proto.h" -#endif - -/* - * Standard libpcap format. - */ -#define TCPDUMP_MAGIC 0xa1b2c3d4 - -/* - * Alexey Kuznetzov's modified libpcap format. - */ -#define KUZNETZOV_TCPDUMP_MAGIC 0xa1b2cd34 - -/* - * Reserved for Francisco Mesquita <francisco.mesquita@radiomovel.pt> - * for another modified format. - */ -#define FMESQUITA_TCPDUMP_MAGIC 0xa1b234cd - -/* - * Navtel Communcations' format, with nanosecond timestamps, - * as per a request from Dumas Hwang <dumas.hwang@navtelcom.com>. - */ -#define NAVTEL_TCPDUMP_MAGIC 0xa12b3c4d - -/* - * Normal libpcap format, except for seconds/nanoseconds timestamps, - * as per a request by Ulf Lamping <ulf.lamping@web.de> - */ -#define NSEC_TCPDUMP_MAGIC 0xa1b23c4d - -/* - * We use the "receiver-makes-right" approach to byte order, - * because time is at a premium when we are writing the file. - * In other words, the pcap_file_header and pcap_pkthdr, - * records are written in host byte order. - * Note that the bytes of packet data are written out in the order in - * which they were received, so multi-byte fields in packets are not - * written in host byte order, they're written in whatever order the - * sending machine put them in. - * - * ntoh[ls] aren't sufficient because we might need to swap on a big-endian - * machine (if the file was written in little-end order). - */ -#define SWAPLONG(y) \ -((((y)&0xff)<<24) | (((y)&0xff00)<<8) | (((y)&0xff0000)>>8) | (((y)>>24)&0xff)) -#define SWAPSHORT(y) \ - ( (((y)&0xff)<<8) | ((u_short)((y)&0xff00)>>8) ) - -#define SFERR_TRUNC 1 -#define SFERR_BADVERSION 2 -#define SFERR_BADF 3 -#define SFERR_EOF 4 /* not really an error, just a status */ - -/* - * Setting O_BINARY on DOS/Windows is a bit tricky - */ -#if defined(WIN32) - #define SET_BINMODE(f) _setmode(_fileno(f), _O_BINARY) -#elif defined(MSDOS) - #if defined(__HIGHC__) - #define SET_BINMODE(f) setmode(f, O_BINARY) - #else - #define SET_BINMODE(f) setmode(fileno(f), O_BINARY) - #endif -#endif - -/* - * We don't write DLT_* values to the capture file header, because - * they're not the same on all platforms. - * - * Unfortunately, the various flavors of BSD have not always used the same - * numerical values for the same data types, and various patches to - * libpcap for non-BSD OSes have added their own DLT_* codes for link - * layer encapsulation types seen on those OSes, and those codes have had, - * in some cases, values that were also used, on other platforms, for other - * link layer encapsulation types. - * - * This means that capture files of a type whose numerical DLT_* code - * means different things on different BSDs, or with different versions - * of libpcap, can't always be read on systems other than those like - * the one running on the machine on which the capture was made. - * - * Instead, we define here a set of LINKTYPE_* codes, and map DLT_* codes - * to LINKTYPE_* codes when writing a savefile header, and map LINKTYPE_* - * codes to DLT_* codes when reading a savefile header. - * - * For those DLT_* codes that have, as far as we know, the same values on - * all platforms (DLT_NULL through DLT_FDDI), we define LINKTYPE_xxx as - * DLT_xxx; that way, captures of those types can still be read by - * versions of libpcap that map LINKTYPE_* values to DLT_* values, and - * captures of those types written by versions of libpcap that map DLT_ - * values to LINKTYPE_ values can still be read by older versions - * of libpcap. - * - * The other LINKTYPE_* codes are given values starting at 100, in the - * hopes that no DLT_* code will be given one of those values. - * - * In order to ensure that a given LINKTYPE_* code's value will refer to - * the same encapsulation type on all platforms, you should not allocate - * a new LINKTYPE_* value without consulting "tcpdump-workers@tcpdump.org". - * The tcpdump developers will allocate a value for you, and will not - * subsequently allocate it to anybody else; that value will be added to - * the "pcap.h" in the tcpdump.org CVS repository, so that a future - * libpcap release will include it. - * - * You should, if possible, also contribute patches to libpcap and tcpdump - * to handle the new encapsulation type, so that they can also be checked - * into the tcpdump.org CVS repository and so that they will appear in - * future libpcap and tcpdump releases. - * - * Do *NOT* assume that any values after the largest value in this file - * are available; you might not have the most up-to-date version of this - * file, and new values after that one might have been assigned. Also, - * do *NOT* use any values below 100 - those might already have been - * taken by one (or more!) organizations. - */ -#define LINKTYPE_NULL DLT_NULL -#define LINKTYPE_ETHERNET DLT_EN10MB /* also for 100Mb and up */ -#define LINKTYPE_EXP_ETHERNET DLT_EN3MB /* 3Mb experimental Ethernet */ -#define LINKTYPE_AX25 DLT_AX25 -#define LINKTYPE_PRONET DLT_PRONET -#define LINKTYPE_CHAOS DLT_CHAOS -#define LINKTYPE_TOKEN_RING DLT_IEEE802 /* DLT_IEEE802 is used for Token Ring */ -#define LINKTYPE_ARCNET DLT_ARCNET /* BSD-style headers */ -#define LINKTYPE_SLIP DLT_SLIP -#define LINKTYPE_PPP DLT_PPP -#define LINKTYPE_FDDI DLT_FDDI - -/* - * LINKTYPE_PPP is for use when there might, or might not, be an RFC 1662 - * PPP in HDLC-like framing header (with 0xff 0x03 before the PPP protocol - * field) at the beginning of the packet. - * - * This is for use when there is always such a header; the address field - * might be 0xff, for regular PPP, or it might be an address field for Cisco - * point-to-point with HDLC framing as per section 4.3.1 of RFC 1547 ("Cisco - * HDLC"). This is, for example, what you get with NetBSD's DLT_PPP_SERIAL. - * - * We give it the same value as NetBSD's DLT_PPP_SERIAL, in the hopes that - * nobody else will choose a DLT_ value of 50, and so that DLT_PPP_SERIAL - * captures will be written out with a link type that NetBSD's tcpdump - * can read. - */ -#define LINKTYPE_PPP_HDLC 50 /* PPP in HDLC-like framing */ - -#define LINKTYPE_PPP_ETHER 51 /* NetBSD PPP-over-Ethernet */ - -#define LINKTYPE_SYMANTEC_FIREWALL 99 /* Symantec Enterprise Firewall */ - -#define LINKTYPE_ATM_RFC1483 100 /* LLC/SNAP-encapsulated ATM */ -#define LINKTYPE_RAW 101 /* raw IP */ -#define LINKTYPE_SLIP_BSDOS 102 /* BSD/OS SLIP BPF header */ -#define LINKTYPE_PPP_BSDOS 103 /* BSD/OS PPP BPF header */ -#define LINKTYPE_C_HDLC 104 /* Cisco HDLC */ -#define LINKTYPE_IEEE802_11 105 /* IEEE 802.11 (wireless) */ -#define LINKTYPE_ATM_CLIP 106 /* Linux Classical IP over ATM */ -#define LINKTYPE_FRELAY 107 /* Frame Relay */ -#define LINKTYPE_LOOP 108 /* OpenBSD loopback */ -#define LINKTYPE_ENC 109 /* OpenBSD IPSEC enc */ - -/* - * These three types are reserved for future use. - */ -#define LINKTYPE_LANE8023 110 /* ATM LANE + 802.3 */ -#define LINKTYPE_HIPPI 111 /* NetBSD HIPPI */ -#define LINKTYPE_HDLC 112 /* NetBSD HDLC framing */ - -#define LINKTYPE_LINUX_SLL 113 /* Linux cooked socket capture */ -#define LINKTYPE_LTALK 114 /* Apple LocalTalk hardware */ -#define LINKTYPE_ECONET 115 /* Acorn Econet */ - -/* - * Reserved for use with OpenBSD ipfilter. - */ -#define LINKTYPE_IPFILTER 116 - -#define LINKTYPE_PFLOG 117 /* OpenBSD DLT_PFLOG */ -#define LINKTYPE_CISCO_IOS 118 /* For Cisco-internal use */ -#define LINKTYPE_PRISM_HEADER 119 /* 802.11+Prism II monitor mode */ -#define LINKTYPE_AIRONET_HEADER 120 /* FreeBSD Aironet driver stuff */ - -/* - * Reserved for Siemens HiPath HDLC. - */ -#define LINKTYPE_HHDLC 121 - -#define LINKTYPE_IP_OVER_FC 122 /* RFC 2625 IP-over-Fibre Channel */ -#define LINKTYPE_SUNATM 123 /* Solaris+SunATM */ - -/* - * Reserved as per request from Kent Dahlgren <kent@praesum.com> - * for private use. - */ -#define LINKTYPE_RIO 124 /* RapidIO */ -#define LINKTYPE_PCI_EXP 125 /* PCI Express */ -#define LINKTYPE_AURORA 126 /* Xilinx Aurora link layer */ - -#define LINKTYPE_IEEE802_11_RADIO 127 /* 802.11 plus BSD radio header */ - -/* - * Reserved for the TZSP encapsulation, as per request from - * Chris Waters <chris.waters@networkchemistry.com> - * TZSP is a generic encapsulation for any other link type, - * which includes a means to include meta-information - * with the packet, e.g. signal strength and channel - * for 802.11 packets. - */ -#define LINKTYPE_TZSP 128 /* Tazmen Sniffer Protocol */ - -#define LINKTYPE_ARCNET_LINUX 129 /* Linux-style headers */ - -/* - * Juniper-private data link types, as per request from - * Hannes Gredler <hannes@juniper.net>. The corresponding - * DLT_s are used for passing on chassis-internal - * metainformation such as QOS profiles, etc.. - */ -#define LINKTYPE_JUNIPER_MLPPP 130 -#define LINKTYPE_JUNIPER_MLFR 131 -#define LINKTYPE_JUNIPER_ES 132 -#define LINKTYPE_JUNIPER_GGSN 133 -#define LINKTYPE_JUNIPER_MFR 134 -#define LINKTYPE_JUNIPER_ATM2 135 -#define LINKTYPE_JUNIPER_SERVICES 136 -#define LINKTYPE_JUNIPER_ATM1 137 - -#define LINKTYPE_APPLE_IP_OVER_IEEE1394 138 /* Apple IP-over-IEEE 1394 cooked header */ - -#define LINKTYPE_MTP2_WITH_PHDR 139 -#define LINKTYPE_MTP2 140 -#define LINKTYPE_MTP3 141 -#define LINKTYPE_SCCP 142 - -#define LINKTYPE_DOCSIS 143 /* DOCSIS MAC frames */ - -#define LINKTYPE_LINUX_IRDA 144 /* Linux-IrDA */ - -/* - * Reserved for IBM SP switch and IBM Next Federation switch. - */ -#define LINKTYPE_IBM_SP 145 -#define LINKTYPE_IBM_SN 146 - -/* - * Reserved for private use. If you have some link-layer header type - * that you want to use within your organization, with the capture files - * using that link-layer header type not ever be sent outside your - * organization, you can use these values. - * - * No libpcap release will use these for any purpose, nor will any - * tcpdump release use them, either. - * - * Do *NOT* use these in capture files that you expect anybody not using - * your private versions of capture-file-reading tools to read; in - * particular, do *NOT* use them in products, otherwise you may find that - * people won't be able to use tcpdump, or snort, or Ethereal, or... to - * read capture files from your firewall/intrusion detection/traffic - * monitoring/etc. appliance, or whatever product uses that LINKTYPE_ value, - * and you may also find that the developers of those applications will - * not accept patches to let them read those files. - * - * Also, do not use them if somebody might send you a capture using them - * for *their* private type and tools using them for *your* private type - * would have to read them. - * - * Instead, in those cases, ask "tcpdump-workers@tcpdump.org" for a new DLT_ - * and LINKTYPE_ value, as per the comment in pcap-bpf.h, and use the type - * you're given. - */ -#define LINKTYPE_USER0 147 -#define LINKTYPE_USER1 148 -#define LINKTYPE_USER2 149 -#define LINKTYPE_USER3 150 -#define LINKTYPE_USER4 151 -#define LINKTYPE_USER5 152 -#define LINKTYPE_USER6 153 -#define LINKTYPE_USER7 154 -#define LINKTYPE_USER8 155 -#define LINKTYPE_USER9 156 -#define LINKTYPE_USER10 157 -#define LINKTYPE_USER11 158 -#define LINKTYPE_USER12 159 -#define LINKTYPE_USER13 160 -#define LINKTYPE_USER14 161 -#define LINKTYPE_USER15 162 - -/* - * For future use with 802.11 captures - defined by AbsoluteValue - * Systems to store a number of bits of link-layer information - * including radio information: - * - * http://www.shaftnet.org/~pizza/software/capturefrm.txt - * - * but could and arguably should also be used by non-AVS Linux - * 802.11 drivers; that may happen in the future. - */ -#define LINKTYPE_IEEE802_11_RADIO_AVS 163 /* 802.11 plus AVS radio header */ - -/* - * Juniper-private data link type, as per request from - * Hannes Gredler <hannes@juniper.net>. The corresponding - * DLT_s are used for passing on chassis-internal - * metainformation such as QOS profiles, etc.. - */ -#define LINKTYPE_JUNIPER_MONITOR 164 - -/* - * Reserved for BACnet MS/TP. - */ -#define LINKTYPE_BACNET_MS_TP 165 - -/* - * Another PPP variant as per request from Karsten Keil <kkeil@suse.de>. - * - * This is used in some OSes to allow a kernel socket filter to distinguish - * between incoming and outgoing packets, on a socket intended to - * supply pppd with outgoing packets so it can do dial-on-demand and - * hangup-on-lack-of-demand; incoming packets are filtered out so they - * don't cause pppd to hold the connection up (you don't want random - * input packets such as port scans, packets from old lost connections, - * etc. to force the connection to stay up). - * - * The first byte of the PPP header (0xff03) is modified to accomodate - * the direction - 0x00 = IN, 0x01 = OUT. - */ -#define LINKTYPE_PPP_PPPD 166 - -/* - * Juniper-private data link type, as per request from - * Hannes Gredler <hannes@juniper.net>. The DLT_s are used - * for passing on chassis-internal metainformation such as - * QOS profiles, cookies, etc.. - */ -#define LINKTYPE_JUNIPER_PPPOE 167 -#define LINKTYPE_JUNIPER_PPPOE_ATM 168 - -#define LINKTYPE_GPRS_LLC 169 /* GPRS LLC */ -#define LINKTYPE_GPF_T 170 /* GPF-T (ITU-T G.7041/Y.1303) */ -#define LINKTYPE_GPF_F 171 /* GPF-T (ITU-T G.7041/Y.1303) */ - -/* - * Requested by Oolan Zimmer <oz@gcom.com> for use in Gcom's T1/E1 line - * monitoring equipment. - */ -#define LINKTYPE_GCOM_T1E1 172 -#define LINKTYPE_GCOM_SERIAL 173 - -/* - * Juniper-private data link type, as per request from - * Hannes Gredler <hannes@juniper.net>. The DLT_ is used - * for internal communication to Physical Interface Cards (PIC) - */ -#define LINKTYPE_JUNIPER_PIC_PEER 174 - -/* - * Link types requested by Gregor Maier <gregor@endace.com> of Endace - * Measurement Systems. They add an ERF header (see - * http://www.endace.com/support/EndaceRecordFormat.pdf) in front of - * the link-layer header. - */ -#define LINKTYPE_ERF_ETH 175 /* Ethernet */ -#define LINKTYPE_ERF_POS 176 /* Packet-over-SONET */ - -/* - * Requested by Daniele Orlandi <daniele@orlandi.com> for raw LAPD - * for vISDN (http://www.orlandi.com/visdn/). Its link-layer header - * includes additional information before the LAPD header, so it's - * not necessarily a generic LAPD header. - */ -#define LINKTYPE_LINUX_LAPD 177 - -/* - * Juniper-private data link type, as per request from - * Hannes Gredler <hannes@juniper.net>. - * The Link Types are used for prepending meta-information - * like interface index, interface name - * before standard Ethernet, PPP, Frelay & C-HDLC Frames - */ -#define LINKTYPE_JUNIPER_ETHER 178 -#define LINKTYPE_JUNIPER_PPP 179 -#define LINKTYPE_JUNIPER_FRELAY 180 -#define LINKTYPE_JUNIPER_CHDLC 181 - -/* - * Multi Link Frame Relay (FRF.16) - */ -#define LINKTYPE_MFR 182 - -/* - * Juniper-private data link type, as per request from - * Hannes Gredler <hannes@juniper.net>. - * The DLT_ is used for internal communication with a - * voice Adapter Card (PIC) - */ -#define LINKTYPE_JUNIPER_VP 183 - -/* - * Arinc 429 frames. - * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. - * Every frame contains a 32bit A429 label. - * More documentation on Arinc 429 can be found at - * http://www.condoreng.com/support/downloads/tutorials/ARINCTutorial.pdf - */ -#define LINKTYPE_A429 184 - -/* - * Arinc 653 Interpartition Communication messages. - * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. - * Please refer to the A653-1 standard for more information. - */ -#define LINKTYPE_A653_ICM 185 - -/* - * USB packets, beginning with a USB setup header; requested by - * Paolo Abeni <paolo.abeni@email.it>. - */ -#define LINKTYPE_USB 186 - -/* - * Bluetooth HCI UART transport layer (part H:4); requested by - * Paolo Abeni. - */ -#define LINKTYPE_BLUETOOTH_HCI_H4 187 - -/* - * IEEE 802.16 MAC Common Part Sublayer; requested by Maria Cruz - * <cruz_petagay@bah.com>. - */ -#define LINKTYPE_IEEE802_16_MAC_CPS 188 - -/* - * USB packets, beginning with a Linux USB header; requested by - * Paolo Abeni <paolo.abeni@email.it>. - */ -#define LINKTYPE_USB_LINUX 189 - -/* - * Controller Area Network (CAN) v. 2.0B packets. - * DLT_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. - * Used to dump CAN packets coming from a CAN Vector board. - * More documentation on the CAN v2.0B frames can be found at - * http://www.can-cia.org/downloads/?269 - */ -#define LINKTYPE_CAN20B 190 - -/* - * IEEE 802.15.4, with address fields padded, as is done by Linux - * drivers; requested by Juergen Schimmer. - */ -#define LINKTYPE_IEEE802_15_4_LINUX 191 - -/* - * Per Packet Information encapsulated packets. - * LINKTYPE_ requested by Gianluca Varenni <gianluca.varenni@cacetech.com>. - */ -#define LINKTYPE_PPI 192 - -/* - * Header for 802.16 MAC Common Part Sublayer plus a radiotap radio header; - * requested by Charles Clancy. - */ -#define LINKTYPE_IEEE802_16_MAC_CPS_RADIO 193 - -/* - * Juniper-private data link type, as per request from - * Hannes Gredler <hannes@juniper.net>. - * The DLT_ is used for internal communication with a - * integrated service module (ISM). - */ -#define LINKTYPE_JUNIPER_ISM 194 - -/* - * IEEE 802.15.4, exactly as it appears in the spec (no padding, no - * nothing); requested by Mikko Saarnivala <mikko.saarnivala@sensinode.com>. - */ -#define LINKTYPE_IEEE802_15_4 195 - -/* - * Various link-layer types, with a pseudo-header, for SITA - * (http://www.sita.aero/); requested by Fulko Hew (fulko.hew@gmail.com). - */ -#define LINKTYPE_SITA 196 - -/* - * Various link-layer types, with a pseudo-header, for Endace DAG cards; - * encapsulates Endace ERF records. Requested by Stephen Donnelly - * <stephen@endace.com>. - */ -#define LINKTYPE_ERF 197 - -/* - * Special header prepended to Ethernet packets when capturing from a - * u10 Networks board. Requested by Phil Mulholland - * <phil@u10networks.com>. - */ -#define LINKTYPE_RAIF1 198 - -/* - * IPMB packet for IPMI, beginning with the I2C slave address, followed - * by the netFn and LUN, etc.. Requested by Chanthy Toeung - * <chanthy.toeung@ca.kontron.com>. - */ -#define LINKTYPE_IPMB 199 - - -static struct linktype_map { - int dlt; - int linktype; -} map[] = { - /* - * These DLT_* codes have LINKTYPE_* codes with values identical - * to the values of the corresponding DLT_* code. - */ - { DLT_NULL, LINKTYPE_NULL }, - { DLT_EN10MB, LINKTYPE_ETHERNET }, - { DLT_EN3MB, LINKTYPE_EXP_ETHERNET }, - { DLT_AX25, LINKTYPE_AX25 }, - { DLT_PRONET, LINKTYPE_PRONET }, - { DLT_CHAOS, LINKTYPE_CHAOS }, - { DLT_IEEE802, LINKTYPE_TOKEN_RING }, - { DLT_ARCNET, LINKTYPE_ARCNET }, - { DLT_SLIP, LINKTYPE_SLIP }, - { DLT_PPP, LINKTYPE_PPP }, - { DLT_FDDI, LINKTYPE_FDDI }, - - /* - * These DLT_* codes have different values on different - * platforms; we map them to LINKTYPE_* codes that - * have values that should never be equal to any DLT_* - * code. - */ -#ifdef DLT_FR - /* BSD/OS Frame Relay */ - { DLT_FR, LINKTYPE_FRELAY }, -#endif - - { DLT_SYMANTEC_FIREWALL, LINKTYPE_SYMANTEC_FIREWALL }, - { DLT_ATM_RFC1483, LINKTYPE_ATM_RFC1483 }, - { DLT_RAW, LINKTYPE_RAW }, - { DLT_SLIP_BSDOS, LINKTYPE_SLIP_BSDOS }, - { DLT_PPP_BSDOS, LINKTYPE_PPP_BSDOS }, - - /* BSD/OS Cisco HDLC */ - { DLT_C_HDLC, LINKTYPE_C_HDLC }, - - /* - * These DLT_* codes are not on all platforms, but, so far, - * there don't appear to be any platforms that define - * other codes with those values; we map them to - * different LINKTYPE_* values anyway, just in case. - */ - - /* Linux ATM Classical IP */ - { DLT_ATM_CLIP, LINKTYPE_ATM_CLIP }, - - /* NetBSD sync/async serial PPP (or Cisco HDLC) */ - { DLT_PPP_SERIAL, LINKTYPE_PPP_HDLC }, - - /* NetBSD PPP over Ethernet */ - { DLT_PPP_ETHER, LINKTYPE_PPP_ETHER }, - - /* IEEE 802.11 wireless */ - { DLT_IEEE802_11, LINKTYPE_IEEE802_11 }, - - /* Frame Relay */ - { DLT_FRELAY, LINKTYPE_FRELAY }, - - /* OpenBSD loopback */ - { DLT_LOOP, LINKTYPE_LOOP }, - - /* Linux cooked socket capture */ - { DLT_LINUX_SLL, LINKTYPE_LINUX_SLL }, - - /* Apple LocalTalk hardware */ - { DLT_LTALK, LINKTYPE_LTALK }, - - /* Acorn Econet */ - { DLT_ECONET, LINKTYPE_ECONET }, - - /* OpenBSD DLT_PFLOG */ - { DLT_PFLOG, LINKTYPE_PFLOG }, - - /* For Cisco-internal use */ - { DLT_CISCO_IOS, LINKTYPE_CISCO_IOS }, - - /* Prism II monitor-mode header plus 802.11 header */ - { DLT_PRISM_HEADER, LINKTYPE_PRISM_HEADER }, - - /* FreeBSD Aironet driver stuff */ - { DLT_AIRONET_HEADER, LINKTYPE_AIRONET_HEADER }, - - /* Siemens HiPath HDLC */ - { DLT_HHDLC, LINKTYPE_HHDLC }, - - /* RFC 2625 IP-over-Fibre Channel */ - { DLT_IP_OVER_FC, LINKTYPE_IP_OVER_FC }, - - /* Solaris+SunATM */ - { DLT_SUNATM, LINKTYPE_SUNATM }, - - /* RapidIO */ - { DLT_RIO, LINKTYPE_RIO }, - - /* PCI Express */ - { DLT_PCI_EXP, LINKTYPE_PCI_EXP }, - - /* Xilinx Aurora link layer */ - { DLT_AURORA, LINKTYPE_AURORA }, - - /* 802.11 plus BSD radio header */ - { DLT_IEEE802_11_RADIO, LINKTYPE_IEEE802_11_RADIO }, - - /* Tazmen Sniffer Protocol */ - { DLT_TZSP, LINKTYPE_TZSP }, - - /* Arcnet with Linux-style link-layer headers */ - { DLT_ARCNET_LINUX, LINKTYPE_ARCNET_LINUX }, - - /* Juniper-internal chassis encapsulation */ - { DLT_JUNIPER_MLPPP, LINKTYPE_JUNIPER_MLPPP }, - { DLT_JUNIPER_MLFR, LINKTYPE_JUNIPER_MLFR }, - { DLT_JUNIPER_ES, LINKTYPE_JUNIPER_ES }, - { DLT_JUNIPER_GGSN, LINKTYPE_JUNIPER_GGSN }, - { DLT_JUNIPER_MFR, LINKTYPE_JUNIPER_MFR }, - { DLT_JUNIPER_ATM2, LINKTYPE_JUNIPER_ATM2 }, - { DLT_JUNIPER_SERVICES, LINKTYPE_JUNIPER_SERVICES }, - { DLT_JUNIPER_ATM1, LINKTYPE_JUNIPER_ATM1 }, - - /* Apple IP-over-IEEE 1394 cooked header */ - { DLT_APPLE_IP_OVER_IEEE1394, LINKTYPE_APPLE_IP_OVER_IEEE1394 }, - - /* SS7 */ - { DLT_MTP2_WITH_PHDR, LINKTYPE_MTP2_WITH_PHDR }, - { DLT_MTP2, LINKTYPE_MTP2 }, - { DLT_MTP3, LINKTYPE_MTP3 }, - { DLT_SCCP, LINKTYPE_SCCP }, - - /* DOCSIS MAC frames */ - { DLT_DOCSIS, LINKTYPE_DOCSIS }, - - /* IrDA IrLAP packets + Linux-cooked header */ - { DLT_LINUX_IRDA, LINKTYPE_LINUX_IRDA }, - - /* IBM SP and Next Federation switches */ - { DLT_IBM_SP, LINKTYPE_IBM_SP }, - { DLT_IBM_SN, LINKTYPE_IBM_SN }, - - /* 802.11 plus AVS radio header */ - { DLT_IEEE802_11_RADIO_AVS, LINKTYPE_IEEE802_11_RADIO_AVS }, - - /* - * Any platform that defines additional DLT_* codes should: - * - * request a LINKTYPE_* code and value from tcpdump.org, - * as per the above; - * - * add, in their version of libpcap, an entry to map - * those DLT_* codes to the corresponding LINKTYPE_* - * code; - * - * redefine, in their "net/bpf.h", any DLT_* values - * that collide with the values used by their additional - * DLT_* codes, to remove those collisions (but without - * making them collide with any of the LINKTYPE_* - * values equal to 50 or above; they should also avoid - * defining DLT_* values that collide with those - * LINKTYPE_* values, either). - */ - - /* Juniper-internal chassis encapsulation */ - { DLT_JUNIPER_MONITOR, LINKTYPE_JUNIPER_MONITOR }, - - /* BACnet MS/TP */ - { DLT_BACNET_MS_TP, LINKTYPE_BACNET_MS_TP }, - - /* PPP for pppd, with direction flag in the PPP header */ - { DLT_PPP_PPPD, LINKTYPE_PPP_PPPD}, - - /* Juniper-internal chassis encapsulation */ - { DLT_JUNIPER_PPPOE, LINKTYPE_JUNIPER_PPPOE }, - { DLT_JUNIPER_PPPOE_ATM,LINKTYPE_JUNIPER_PPPOE_ATM }, - - /* GPRS LLC */ - { DLT_GPRS_LLC, LINKTYPE_GPRS_LLC }, - - /* Transparent Generic Framing Procedure (ITU-T G.7041/Y.1303) */ - { DLT_GPF_T, LINKTYPE_GPF_T }, - - /* Framed Generic Framing Procedure (ITU-T G.7041/Y.1303) */ - { DLT_GPF_F, LINKTYPE_GPF_F }, - - { DLT_GCOM_T1E1, LINKTYPE_GCOM_T1E1 }, - { DLT_GCOM_SERIAL, LINKTYPE_GCOM_SERIAL }, - - /* Juniper-internal chassis encapsulation */ - { DLT_JUNIPER_PIC_PEER, LINKTYPE_JUNIPER_PIC_PEER }, - - /* Endace types */ - { DLT_ERF_ETH, LINKTYPE_ERF_ETH }, - { DLT_ERF_POS, LINKTYPE_ERF_POS }, - - /* viSDN LAPD */ - { DLT_LINUX_LAPD, LINKTYPE_LINUX_LAPD }, - - /* Juniper meta-information before Ether, PPP, Frame Relay, C-HDLC Frames */ - { DLT_JUNIPER_ETHER, LINKTYPE_JUNIPER_ETHER }, - { DLT_JUNIPER_PPP, LINKTYPE_JUNIPER_PPP }, - { DLT_JUNIPER_FRELAY, LINKTYPE_JUNIPER_FRELAY }, - { DLT_JUNIPER_CHDLC, LINKTYPE_JUNIPER_CHDLC }, - - /* Multi Link Frame Relay (FRF.16) */ - { DLT_MFR, LINKTYPE_MFR }, - - /* Juniper Voice PIC */ - { DLT_JUNIPER_VP, LINKTYPE_JUNIPER_VP }, - - /* Controller Area Network (CAN) v2.0B */ - { DLT_A429, LINKTYPE_A429 }, - - /* Arinc 653 Interpartition Communication messages */ - { DLT_A653_ICM, LINKTYPE_A653_ICM }, - - /* USB */ - { DLT_USB, LINKTYPE_USB }, - - /* Bluetooth HCI UART transport layer */ - { DLT_BLUETOOTH_HCI_H4, LINKTYPE_BLUETOOTH_HCI_H4 }, - - /* IEEE 802.16 MAC Common Part Sublayer */ - { DLT_IEEE802_16_MAC_CPS, LINKTYPE_IEEE802_16_MAC_CPS }, - - /* USB with Linux header */ - { DLT_USB_LINUX, LINKTYPE_USB_LINUX }, - - /* Controller Area Network (CAN) v2.0B */ - { DLT_CAN20B, LINKTYPE_CAN20B }, - - /* IEEE 802.15.4 with address fields padded */ - { DLT_IEEE802_15_4_LINUX, LINKTYPE_IEEE802_15_4_LINUX }, - - /* Per Packet Information encapsulated packets */ - { DLT_PPI, LINKTYPE_PPI }, - - /* IEEE 802.16 MAC Common Part Sublayer plus radiotap header */ - { DLT_IEEE802_16_MAC_CPS_RADIO, LINKTYPE_IEEE802_16_MAC_CPS_RADIO }, - - /* Juniper Voice ISM */ - { DLT_JUNIPER_ISM, LINKTYPE_JUNIPER_ISM }, - - /* IEEE 802.15.4 exactly as it appears in the spec */ - { DLT_IEEE802_15_4, LINKTYPE_IEEE802_15_4 }, - - /* Various link-layer types for SITA */ - { DLT_SITA, LINKTYPE_SITA }, - - /* Various link-layer types for Endace */ - { DLT_ERF, LINKTYPE_ERF }, - - /* Special header for u10 Networks boards */ - { DLT_RAIF1, LINKTYPE_RAIF1 }, - - /* IPMB */ - { DLT_IPMB, LINKTYPE_IPMB }, - - { -1, -1 } -}; - -static int -dlt_to_linktype(int dlt) -{ - int i; - - for (i = 0; map[i].dlt != -1; i++) { - if (map[i].dlt == dlt) - return (map[i].linktype); - } - - /* - * If we don't have a mapping for this DLT_ code, return an - * error; that means that the table above needs to have an - * entry added. - */ - return (-1); -} - -static int -linktype_to_dlt(int linktype) -{ - int i; - - for (i = 0; map[i].linktype != -1; i++) { - if (map[i].linktype == linktype) - return (map[i].dlt); - } - - /* - * If we don't have an entry for this link type, return - * the link type value; it may be a DLT_ value from an - * older version of libpcap. - */ - return linktype; -} - -static int -sf_write_header(FILE *fp, int linktype, int thiszone, int snaplen) -{ - struct pcap_file_header hdr; - - hdr.magic = TCPDUMP_MAGIC; - hdr.version_major = PCAP_VERSION_MAJOR; - hdr.version_minor = PCAP_VERSION_MINOR; - - hdr.thiszone = thiszone; - hdr.snaplen = snaplen; - hdr.sigfigs = 0; - hdr.linktype = linktype; - - if (fwrite((char *)&hdr, sizeof(hdr), 1, fp) != 1) - return (-1); - - return (0); -} - -static void -swap_hdr(struct pcap_file_header *hp) -{ - hp->version_major = SWAPSHORT(hp->version_major); - hp->version_minor = SWAPSHORT(hp->version_minor); - hp->thiszone = SWAPLONG(hp->thiszone); - hp->sigfigs = SWAPLONG(hp->sigfigs); - hp->snaplen = SWAPLONG(hp->snaplen); - hp->linktype = SWAPLONG(hp->linktype); -} - -static int -sf_getnonblock(pcap_t *p, char *errbuf) -{ - /* - * This is a savefile, not a live capture file, so never say - * it's in non-blocking mode. - */ - return (0); -} - -static int -sf_setnonblock(pcap_t *p, int nonblock, char *errbuf) -{ - /* - * This is a savefile, not a live capture file, so ignore - * requests to put it in non-blocking mode. - */ - return (0); -} - -static int -sf_stats(pcap_t *p, struct pcap_stat *ps) -{ - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, - "Statistics aren't available from savefiles"); - return (-1); -} - -static int -sf_inject(pcap_t *p, const void *buf _U_, size_t size _U_) -{ - strlcpy(p->errbuf, "Sending packets isn't supported on savefiles", - PCAP_ERRBUF_SIZE); - return (-1); -} - -/* - * Set direction flag: Which packets do we accept on a forwarding - * single device? IN, OUT or both? - */ -static int -sf_setdirection(pcap_t *p, pcap_direction_t d) -{ - snprintf(p->errbuf, sizeof(p->errbuf), - "Setting direction is not supported on savefiles"); - return (-1); -} - -static void -sf_close(pcap_t *p) -{ - if (p->sf.rfile != stdin) - (void)fclose(p->sf.rfile); - if (p->sf.base != NULL) - free(p->sf.base); -} - -pcap_t * -pcap_open_offline(const char *fname, char *errbuf) -{ - FILE *fp; - pcap_t *p; - - if (fname[0] == '-' && fname[1] == '\0') - { - fp = stdin; -#if defined(WIN32) || defined(MSDOS) - /* - * We're reading from the standard input, so put it in binary - * mode, as savefiles are binary files. - */ - SET_BINMODE(fp); -#endif - } - else { -#if !defined(WIN32) && !defined(MSDOS) - fp = fopen(fname, "r"); -#else - fp = fopen(fname, "rb"); -#endif - if (fp == NULL) { - snprintf(errbuf, PCAP_ERRBUF_SIZE, "%s: %s", fname, - pcap_strerror(errno)); - return (NULL); - } - } - p = pcap_fopen_offline(fp, errbuf); - if (p == NULL) { - if (fp != stdin) - fclose(fp); - } - return (p); -} - -pcap_t * -pcap_fopen_offline(FILE *fp, char *errbuf) -{ - register pcap_t *p; - struct pcap_file_header hdr; - size_t amt_read; - bpf_u_int32 magic; - int linklen; - - p = (pcap_t *)malloc(sizeof(*p)); - if (p == NULL) { - strlcpy(errbuf, "out of swap", PCAP_ERRBUF_SIZE); - return (NULL); - } - - memset((char *)p, 0, sizeof(*p)); - - amt_read = fread((char *)&hdr, 1, sizeof(hdr), fp); - if (amt_read != sizeof(hdr)) { - if (ferror(fp)) { - snprintf(errbuf, PCAP_ERRBUF_SIZE, - "error reading dump file: %s", - pcap_strerror(errno)); - } else { - snprintf(errbuf, PCAP_ERRBUF_SIZE, - "truncated dump file; tried to read %lu file header bytes, only got %lu", - (unsigned long)sizeof(hdr), - (unsigned long)amt_read); - } - goto bad; - } - magic = hdr.magic; - if (magic != TCPDUMP_MAGIC && magic != KUZNETZOV_TCPDUMP_MAGIC) { - magic = SWAPLONG(magic); - if (magic != TCPDUMP_MAGIC && magic != KUZNETZOV_TCPDUMP_MAGIC) { - snprintf(errbuf, PCAP_ERRBUF_SIZE, - "bad dump file format"); - goto bad; - } - p->sf.swapped = 1; - swap_hdr(&hdr); - } - if (magic == KUZNETZOV_TCPDUMP_MAGIC) { - /* - * XXX - the patch that's in some versions of libpcap - * changes the packet header but not the magic number, - * and some other versions with this magic number have - * some extra debugging information in the packet header; - * we'd have to use some hacks^H^H^H^H^Hheuristics to - * detect those variants. - * - * Ethereal does that, but it does so by trying to read - * the first two packets of the file with each of the - * record header formats. That currently means it seeks - * backwards and retries the reads, which doesn't work - * on pipes. We want to be able to read from a pipe, so - * that strategy won't work; we'd have to buffer some - * data ourselves and read from that buffer in order to - * make that work. - */ - p->sf.hdrsize = sizeof(struct pcap_sf_patched_pkthdr); - } else - p->sf.hdrsize = sizeof(struct pcap_sf_pkthdr); - if (hdr.version_major < PCAP_VERSION_MAJOR) { - snprintf(errbuf, PCAP_ERRBUF_SIZE, "archaic file format"); - goto bad; - } - p->tzoff = hdr.thiszone; - p->snapshot = hdr.snaplen; - p->linktype = linktype_to_dlt(hdr.linktype); - if (magic == KUZNETZOV_TCPDUMP_MAGIC && p->linktype == DLT_EN10MB) { - /* - * This capture might have been done in raw mode or cooked - * mode. - * - * If it was done in cooked mode, p->snapshot was passed - * to recvfrom() as the buffer size, meaning that the - * most packet data that would be copied would be - * p->snapshot. However, a faked Ethernet header would - * then have been added to it, so the most data that would - * be in a packet in the file would be p->snapshot + 14. - * - * We can't easily tell whether the capture was done in - * raw mode or cooked mode, so we'll assume it was - * cooked mode, and add 14 to the snapshot length. That - * means that, for a raw capture, the snapshot length will - * be misleading if you use it to figure out why a capture - * doesn't have all the packet data, but there's not much - * we can do to avoid that. - */ - p->snapshot += 14; - } - p->sf.rfile = fp; -#ifndef WIN32 - p->bufsize = hdr.snaplen; -#else - /* Allocate the space for pcap_pkthdr as well. It will be used by pcap_read_ex */ - p->bufsize = hdr.snaplen+sizeof(struct pcap_pkthdr); -#endif - - /* Align link header as required for proper data alignment */ - /* XXX should handle all types */ - switch (p->linktype) { - - case DLT_EN10MB: - linklen = 14; - break; - - case DLT_FDDI: - linklen = 13 + 8; /* fddi_header + llc */ - break; - - case DLT_NULL: - default: - linklen = 0; - break; - } - - if (p->bufsize < 0) - p->bufsize = BPF_MAXBUFSIZE; - p->sf.base = (u_char *)malloc(p->bufsize + BPF_ALIGNMENT); - if (p->sf.base == NULL) { - strlcpy(errbuf, "out of swap", PCAP_ERRBUF_SIZE); - goto bad; - } - p->buffer = p->sf.base + BPF_ALIGNMENT - (linklen % BPF_ALIGNMENT); - p->sf.version_major = hdr.version_major; - p->sf.version_minor = hdr.version_minor; -#ifdef PCAP_FDDIPAD - /* Padding only needed for live capture fcode */ - p->fddipad = 0; -#endif - - /* - * We interchanged the caplen and len fields at version 2.3, - * in order to match the bpf header layout. But unfortunately - * some files were written with version 2.3 in their headers - * but without the interchanged fields. - * - * In addition, DG/UX tcpdump writes out files with a version - * number of 543.0, and with the caplen and len fields in the - * pre-2.3 order. - */ - switch (hdr.version_major) { - - case 2: - if (hdr.version_minor < 3) - p->sf.lengths_swapped = SWAPPED; - else if (hdr.version_minor == 3) - p->sf.lengths_swapped = MAYBE_SWAPPED; - else - p->sf.lengths_swapped = NOT_SWAPPED; - break; - - case 543: - p->sf.lengths_swapped = SWAPPED; - break; - - default: - p->sf.lengths_swapped = NOT_SWAPPED; - break; - } - -#if !defined(WIN32) && !defined(MSDOS) - /* - * You can do "select()" and "poll()" on plain files on most - * platforms, and should be able to do so on pipes. - * - * You can't do "select()" on anything other than sockets in - * Windows, so, on Win32 systems, we don't have "selectable_fd". - */ - p->selectable_fd = fileno(fp); -#endif - - p->read_op = pcap_offline_read; - p->inject_op = sf_inject; - p->setfilter_op = install_bpf_program; - p->setdirection_op = sf_setdirection; - p->set_datalink_op = NULL; /* we don't support munging link-layer headers */ - p->getnonblock_op = sf_getnonblock; - p->setnonblock_op = sf_setnonblock; - p->stats_op = sf_stats; - p->close_op = sf_close; - - return (p); - bad: - free(p); - return (NULL); -} - -/* - * Read sf_readfile and return the next packet. Return the header in hdr - * and the contents in buf. Return 0 on success, SFERR_EOF if there were - * no more packets, and SFERR_TRUNC if a partial packet was encountered. - */ -static int -sf_next_packet(pcap_t *p, struct pcap_pkthdr *hdr, u_char *buf, u_int buflen) -{ - struct pcap_sf_patched_pkthdr sf_hdr; - FILE *fp = p->sf.rfile; - size_t amt_read; - bpf_u_int32 t; - - /* - * Read the packet header; the structure we use as a buffer - * is the longer structure for files generated by the patched - * libpcap, but if the file has the magic number for an - * unpatched libpcap we only read as many bytes as the regular - * header has. - */ - amt_read = fread(&sf_hdr, 1, p->sf.hdrsize, fp); - if (amt_read != p->sf.hdrsize) { - if (ferror(fp)) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, - "error reading dump file: %s", - pcap_strerror(errno)); - return (-1); - } else { - if (amt_read != 0) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, - "truncated dump file; tried to read %d header bytes, only got %lu", - p->sf.hdrsize, (unsigned long)amt_read); - return (-1); - } - /* EOF */ - return (1); - } - } - - if (p->sf.swapped) { - /* these were written in opposite byte order */ - hdr->caplen = SWAPLONG(sf_hdr.caplen); - hdr->len = SWAPLONG(sf_hdr.len); - hdr->ts.tv_sec = SWAPLONG(sf_hdr.ts.tv_sec); - hdr->ts.tv_usec = SWAPLONG(sf_hdr.ts.tv_usec); - } else { - hdr->caplen = sf_hdr.caplen; - hdr->len = sf_hdr.len; - hdr->ts.tv_sec = sf_hdr.ts.tv_sec; - hdr->ts.tv_usec = sf_hdr.ts.tv_usec; - } - /* Swap the caplen and len fields, if necessary. */ - switch (p->sf.lengths_swapped) { - - case NOT_SWAPPED: - break; - - case MAYBE_SWAPPED: - if (hdr->caplen <= hdr->len) { - /* - * The captured length is <= the actual length, - * so presumably they weren't swapped. - */ - break; - } - /* FALLTHROUGH */ - - case SWAPPED: - t = hdr->caplen; - hdr->caplen = hdr->len; - hdr->len = t; - break; - } - - if (hdr->caplen > buflen) { - /* - * This can happen due to Solaris 2.3 systems tripping - * over the BUFMOD problem and not setting the snapshot - * correctly in the savefile header. If the caplen isn't - * grossly wrong, try to salvage. - */ - static u_char *tp = NULL; - static size_t tsize = 0; - - if (hdr->caplen > 65535) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, - "bogus savefile header"); - return (-1); - } - - if (tsize < hdr->caplen) { - tsize = ((hdr->caplen + 1023) / 1024) * 1024; - if (tp != NULL) - free((u_char *)tp); - tp = (u_char *)malloc(tsize); - if (tp == NULL) { - tsize = 0; - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, - "BUFMOD hack malloc"); - return (-1); - } - } - amt_read = fread((char *)tp, 1, hdr->caplen, fp); - if (amt_read != hdr->caplen) { - if (ferror(fp)) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, - "error reading dump file: %s", - pcap_strerror(errno)); - } else { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, - "truncated dump file; tried to read %u captured bytes, only got %lu", - hdr->caplen, (unsigned long)amt_read); - } - return (-1); - } - /* - * We can only keep up to buflen bytes. Since caplen > buflen - * is exactly how we got here, we know we can only keep the - * first buflen bytes and must drop the remainder. Adjust - * caplen accordingly, so we don't get confused later as - * to how many bytes we have to play with. - */ - hdr->caplen = buflen; - memcpy((char *)buf, (char *)tp, buflen); - - } else { - /* read the packet itself */ - amt_read = fread((char *)buf, 1, hdr->caplen, fp); - if (amt_read != hdr->caplen) { - if (ferror(fp)) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, - "error reading dump file: %s", - pcap_strerror(errno)); - } else { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, - "truncated dump file; tried to read %u captured bytes, only got %lu", - hdr->caplen, (unsigned long)amt_read); - } - return (-1); - } - } - return (0); -} - -/* - * Print out packets stored in the file initialized by sf_read_init(). - * If cnt > 0, return after 'cnt' packets, otherwise continue until eof. - */ -int -pcap_offline_read(pcap_t *p, int cnt, pcap_handler callback, u_char *user) -{ - struct bpf_insn *fcode; - int status = 0; - int n = 0; - - while (status == 0) { - struct pcap_pkthdr h; - - /* - * Has "pcap_breakloop()" been called? - * If so, return immediately - if we haven't read any - * packets, clear the flag and return -2 to indicate - * that we were told to break out of the loop, otherwise - * leave the flag set, so that the *next* call will break - * out of the loop without having read any packets, and - * return the number of packets we've processed so far. - */ - if (p->break_loop) { - if (n == 0) { - p->break_loop = 0; - return (-2); - } else - return (n); - } - - status = sf_next_packet(p, &h, p->buffer, p->bufsize); - if (status) { - if (status == 1) - return (0); - return (status); - } - - if ((fcode = p->fcode.bf_insns) == NULL || - bpf_filter(fcode, p->buffer, h.len, h.caplen)) { - (*callback)(user, &h, p->buffer); - if (++n >= cnt && cnt > 0) - break; - } - } - /*XXX this breaks semantics tcpslice expects */ - return (n); -} - -/* - * Output a packet to the initialized dump file. - */ -void -pcap_dump(u_char *user, const struct pcap_pkthdr *h, const u_char *sp) -{ - register FILE *f; - struct pcap_sf_pkthdr sf_hdr; - - f = (FILE *)user; - sf_hdr.ts.tv_sec = h->ts.tv_sec; - sf_hdr.ts.tv_usec = h->ts.tv_usec; - sf_hdr.caplen = h->caplen; - sf_hdr.len = h->len; - /* XXX we should check the return status */ - (void)fwrite(&sf_hdr, sizeof(sf_hdr), 1, f); - (void)fwrite(sp, h->caplen, 1, f); -} - -static pcap_dumper_t * -pcap_setup_dump(pcap_t *p, int linktype, FILE *f, const char *fname) -{ - -#if defined(WIN32) || defined(MSDOS) - /* - * If we're writing to the standard output, put it in binary - * mode, as savefiles are binary files. - * - * Otherwise, we turn off buffering. - * XXX - why? And why not on the standard output? - */ - if (f == stdout) - SET_BINMODE(f); - else - setbuf(f, NULL); -#endif - if (sf_write_header(f, linktype, p->tzoff, p->snapshot) == -1) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "Can't write to %s: %s", - fname, pcap_strerror(errno)); - if (f != stdout) - (void)fclose(f); - return (NULL); - } - return ((pcap_dumper_t *)f); -} - -/* - * Initialize so that sf_write() will output to the file named 'fname'. - */ -pcap_dumper_t * -pcap_dump_open(pcap_t *p, const char *fname) -{ - FILE *f; - int linktype; - - linktype = dlt_to_linktype(p->linktype); - if (linktype == -1) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, - "%s: link-layer type %d isn't supported in savefiles", - fname, linktype); - return (NULL); - } - - if (fname[0] == '-' && fname[1] == '\0') { - f = stdout; - fname = "standard output"; - } else { -#if !defined(WIN32) && !defined(MSDOS) - f = fopen(fname, "w"); -#else - f = fopen(fname, "wb"); -#endif - if (f == NULL) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "%s: %s", - fname, pcap_strerror(errno)); - return (NULL); - } - } - return (pcap_setup_dump(p, linktype, f, fname)); -} - -/* - * Initialize so that sf_write() will output to the given stream. - */ -pcap_dumper_t * -pcap_dump_fopen(pcap_t *p, FILE *f) -{ - int linktype; - - linktype = dlt_to_linktype(p->linktype); - if (linktype == -1) { - snprintf(p->errbuf, PCAP_ERRBUF_SIZE, - "stream: link-layer type %d isn't supported in savefiles", - linktype); - return (NULL); - } - - return (pcap_setup_dump(p, linktype, f, "stream")); -} - -FILE * -pcap_dump_file(pcap_dumper_t *p) -{ - return ((FILE *)p); -} - -long -pcap_dump_ftell(pcap_dumper_t *p) -{ - return (ftell((FILE *)p)); -} - -int -pcap_dump_flush(pcap_dumper_t *p) -{ - - if (fflush((FILE *)p) == EOF) - return (-1); - else - return (0); -} - -void -pcap_dump_close(pcap_dumper_t *p) -{ - -#ifdef notyet - if (ferror((FILE *)p)) - return-an-error; - /* XXX should check return from fclose() too */ -#endif - (void)fclose((FILE *)p); -} diff --git a/contrib/libpcap/scanner.l b/contrib/libpcap/scanner.l deleted file mode 100644 index 01face1..0000000 --- a/contrib/libpcap/scanner.l +++ /dev/null @@ -1,434 +0,0 @@ -%{ -/* - * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that: (1) source code distributions - * retain the above copyright notice and this paragraph in its entirety, (2) - * distributions including binary code include the above copyright notice and - * this paragraph in its entirety in the documentation or other materials - * provided with the distribution, and (3) all advertising materials mentioning - * features or use of this software display the following acknowledgement: - * ``This product includes software developed by the University of California, - * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of - * the University nor the names of its contributors may be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/scanner.l,v 1.99.2.9 2007/06/11 09:52:05 guy Exp $ (LBL)"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <ctype.h> -#include <string.h> - -#include "pcap-int.h" - -#include "gencode.h" -#ifdef INET6 -#ifdef WIN32 -#include <pcap-stdinc.h> - -#ifdef __MINGW32__ -#include "IP6_misc.h" -#endif -#else /* WIN32 */ -#include <sys/socket.h> /* for "struct sockaddr" in "struct addrinfo" */ -#include <netdb.h> /* for "struct addrinfo" */ -#endif /* WIN32 */ - -/* Workaround for AIX 4.3 */ -#if !defined(AI_NUMERICHOST) -#define AI_NUMERICHOST 0x04 -#endif -#endif /*INET6*/ -#include <pcap-namedb.h> -#include "tokdefs.h" - -#ifdef HAVE_OS_PROTO_H -#include "os-proto.h" -#endif - -static int stoi(char *); -static inline int xdtoi(int); - -#ifdef FLEX_SCANNER -#define YY_NO_UNPUT -static YY_BUFFER_STATE in_buffer; -#else -static char *in_buffer; - -#undef getc -#define getc(fp) (*in_buffer == 0 ? EOF : *in_buffer++) -#endif - -#define yylval pcap_lval -extern YYSTYPE yylval; - -%} - -N ([0-9]+|(0X|0x)[0-9A-Fa-f]+) -B ([0-9A-Fa-f][0-9A-Fa-f]?) -W ([0-9A-Fa-f][0-9A-Fa-f]?[0-9A-Fa-f]?[0-9A-Fa-f]?) - -%a 18400 -%o 21500 -%e 7600 -%k 4550 -%p 27600 -%n 2000 - -V680 {W}:{W}:{W}:{W}:{W}:{W}:{W}:{W} - -V670 ::{W}:{W}:{W}:{W}:{W}:{W}:{W} -V671 {W}::{W}:{W}:{W}:{W}:{W}:{W} -V672 {W}:{W}::{W}:{W}:{W}:{W}:{W} -V673 {W}:{W}:{W}::{W}:{W}:{W}:{W} -V674 {W}:{W}:{W}:{W}::{W}:{W}:{W} -V675 {W}:{W}:{W}:{W}:{W}::{W}:{W} -V676 {W}:{W}:{W}:{W}:{W}:{W}::{W} -V677 {W}:{W}:{W}:{W}:{W}:{W}:{W}:: - -V660 ::{W}:{W}:{W}:{W}:{W}:{W} -V661 {W}::{W}:{W}:{W}:{W}:{W} -V662 {W}:{W}::{W}:{W}:{W}:{W} -V663 {W}:{W}:{W}::{W}:{W}:{W} -V664 {W}:{W}:{W}:{W}::{W}:{W} -V665 {W}:{W}:{W}:{W}:{W}::{W} -V666 {W}:{W}:{W}:{W}:{W}:{W}:: - -V650 ::{W}:{W}:{W}:{W}:{W} -V651 {W}::{W}:{W}:{W}:{W} -V652 {W}:{W}::{W}:{W}:{W} -V653 {W}:{W}:{W}::{W}:{W} -V654 {W}:{W}:{W}:{W}::{W} -V655 {W}:{W}:{W}:{W}:{W}:: - -V640 ::{W}:{W}:{W}:{W} -V641 {W}::{W}:{W}:{W} -V642 {W}:{W}::{W}:{W} -V643 {W}:{W}:{W}::{W} -V644 {W}:{W}:{W}:{W}:: - -V630 ::{W}:{W}:{W} -V631 {W}::{W}:{W} -V632 {W}:{W}::{W} -V633 {W}:{W}:{W}:: - -V620 ::{W}:{W} -V621 {W}::{W} -V622 {W}:{W}:: - -V610 ::{W} -V611 {W}:: - -V600 :: - -V6604 {W}:{W}:{W}:{W}:{W}:{W}:{N}\.{N}\.{N}\.{N} - -V6504 ::{W}:{W}:{W}:{W}:{W}:{N}\.{N}\.{N}\.{N} -V6514 {W}::{W}:{W}:{W}:{W}:{N}\.{N}\.{N}\.{N} -V6524 {W}:{W}::{W}:{W}:{W}:{N}\.{N}\.{N}\.{N} -V6534 {W}:{W}:{W}::{W}:{W}:{N}\.{N}\.{N}\.{N} -V6544 {W}:{W}:{W}:{W}::{W}:{N}\.{N}\.{N}\.{N} -V6554 {W}:{W}:{W}:{W}:{W}::{N}\.{N}\.{N}\.{N} - -V6404 ::{W}:{W}:{W}:{W}:{N}\.{N}\.{N}\.{N} -V6414 {W}::{W}:{W}:{W}:{N}\.{N}\.{N}\.{N} -V6424 {W}:{W}::{W}:{W}:{N}\.{N}\.{N}\.{N} -V6434 {W}:{W}:{W}::{W}:{N}\.{N}\.{N}\.{N} -V6444 {W}:{W}:{W}:{W}::{N}\.{N}\.{N}\.{N} - -V6304 ::{W}:{W}:{W}:{N}\.{N}\.{N}\.{N} -V6314 {W}::{W}:{W}:{N}\.{N}\.{N}\.{N} -V6324 {W}:{W}::{W}:{N}\.{N}\.{N}\.{N} -V6334 {W}:{W}:{W}::{N}\.{N}\.{N}\.{N} - -V6204 ::{W}:{W}:{N}\.{N}\.{N}\.{N} -V6214 {W}::{W}:{N}\.{N}\.{N}\.{N} -V6224 {W}:{W}::{N}\.{N}\.{N}\.{N} - -V6104 ::{W}:{N}\.{N}\.{N}\.{N} -V6114 {W}::{N}\.{N}\.{N}\.{N} - -V6004 ::{N}\.{N}\.{N}\.{N} - - -V6 ({V680}|{V670}|{V671}|{V672}|{V673}|{V674}|{V675}|{V676}|{V677}|{V660}|{V661}|{V662}|{V663}|{V664}|{V665}|{V666}|{V650}|{V651}|{V652}|{V653}|{V654}|{V655}|{V640}|{V641}|{V642}|{V643}|{V644}|{V630}|{V631}|{V632}|{V633}|{V620}|{V621}|{V622}|{V610}|{V611}|{V600}|{V6604}|{V6504}|{V6514}|{V6524}|{V6534}|{V6544}|{V6554}|{V6404}|{V6414}|{V6424}|{V6434}|{V6444}|{V6304}|{V6314}|{V6324}|{V6334}|{V6204}|{V6214}|{V6224}|{V6104}|{V6114}|{V6004}) - -%% -dst return DST; -src return SRC; - -link|ether|ppp|slip return LINK; -fddi|tr|wlan return LINK; -arp return ARP; -rarp return RARP; -ip return IP; -sctp return SCTP; -tcp return TCP; -udp return UDP; -icmp return ICMP; -igmp return IGMP; -igrp return IGRP; -pim return PIM; -vrrp return VRRP; -radio return RADIO; - -ip6 { -#ifdef INET6 - return IPV6; -#else - bpf_error("%s not supported", yytext); -#endif - } -icmp6 { -#ifdef INET6 - return ICMPV6; -#else - bpf_error("%s not supported", yytext); -#endif - } -ah return AH; -esp return ESP; - -atalk return ATALK; -aarp return AARP; -decnet return DECNET; -lat return LAT; -sca return SCA; -moprc return MOPRC; -mopdl return MOPDL; - -iso return ISO; -esis return ESIS; -es-is return ESIS; -isis return ISIS; -is-is return ISIS; -l1 return L1; -l2 return L2; -iih return IIH; -lsp return LSP; -snp return SNP; -csnp return CSNP; -psnp return PSNP; - -clnp return CLNP; - -stp return STP; - -ipx return IPX; - -netbeui return NETBEUI; - -host return HOST; -net return NET; -mask return NETMASK; -port return PORT; -portrange return PORTRANGE; -proto return PROTO; -protochain { -#ifdef NO_PROTOCHAIN - bpf_error("%s not supported", yytext); -#else - return PROTOCHAIN; -#endif - } - -gateway return GATEWAY; - -less return LESS; -greater return GREATER; -byte return CBYTE; -broadcast return TK_BROADCAST; -multicast return TK_MULTICAST; - -and|"&&" return AND; -or|"||" return OR; -not return '!'; - -len|length return LEN; -inbound return INBOUND; -outbound return OUTBOUND; - -vlan return VLAN; -mpls return MPLS; -pppoed return PPPOED; -pppoes return PPPOES; - -lane return LANE; -llc return LLC; -metac return METAC; -bcc return BCC; -oam return OAM; -oamf4 return OAMF4; -oamf4ec return OAMF4EC; -oamf4sc return OAMF4SC; -sc return SC; -ilmic return ILMIC; -vpi return VPI; -vci return VCI; -connectmsg return CONNECTMSG; -metaconnect return METACONNECT; - -on|ifname return PF_IFNAME; -rset|ruleset return PF_RSET; -rnr|rulenum return PF_RNR; -srnr|subrulenum return PF_SRNR; -reason return PF_REASON; -action return PF_ACTION; - -fisu return FISU; -lssu return LSSU; -lsu return LSSU; -msu return MSU; -sio return SIO; -opc return OPC; -dpc return DPC; -sls return SLS; - -[ \r\n\t] ; -[+\-*/:\[\]!<>()&|=] return yytext[0]; -">=" return GEQ; -"<=" return LEQ; -"!=" return NEQ; -"==" return '='; -"<<" return LSH; -">>" return RSH; -${B} { yylval.e = pcap_ether_aton(((char *)yytext)+1); - return AID; } -{N} { yylval.i = stoi((char *)yytext); return NUM; } -({N}\.{N})|({N}\.{N}\.{N})|({N}\.{N}\.{N}\.{N}) { - yylval.s = sdup((char *)yytext); return HID; } -{B}:{B}:{B}:{B}:{B}:{B} { yylval.e = pcap_ether_aton((char *)yytext); - return EID; } -{V6} { -#ifdef INET6 - struct addrinfo hints, *res; - memset(&hints, 0, sizeof(hints)); - hints.ai_family = AF_INET6; - hints.ai_flags = AI_NUMERICHOST; - if (getaddrinfo(yytext, NULL, &hints, &res)) - bpf_error("bogus IPv6 address %s", yytext); - else { - yylval.s = sdup((char *)yytext); return HID6; - } -#else - bpf_error("IPv6 address %s not supported", yytext); -#endif /*INET6*/ - } -{B}:+({B}:+)+ { bpf_error("bogus ethernet address %s", yytext); } -icmptype { yylval.i = 0; return NUM; } -icmpcode { yylval.i = 1; return NUM; } -icmp-echoreply { yylval.i = 0; return NUM; } -icmp-unreach { yylval.i = 3; return NUM; } -icmp-sourcequench { yylval.i = 4; return NUM; } -icmp-redirect { yylval.i = 5; return NUM; } -icmp-echo { yylval.i = 8; return NUM; } -icmp-routeradvert { yylval.i = 9; return NUM; } -icmp-routersolicit { yylval.i = 10; return NUM; } -icmp-timxceed { yylval.i = 11; return NUM; } -icmp-paramprob { yylval.i = 12; return NUM; } -icmp-tstamp { yylval.i = 13; return NUM; } -icmp-tstampreply { yylval.i = 14; return NUM; } -icmp-ireq { yylval.i = 15; return NUM; } -icmp-ireqreply { yylval.i = 16; return NUM; } -icmp-maskreq { yylval.i = 17; return NUM; } -icmp-maskreply { yylval.i = 18; return NUM; } -tcpflags { yylval.i = 13; return NUM; } -tcp-fin { yylval.i = 0x01; return NUM; } -tcp-syn { yylval.i = 0x02; return NUM; } -tcp-rst { yylval.i = 0x04; return NUM; } -tcp-push { yylval.i = 0x08; return NUM; } -tcp-ack { yylval.i = 0x10; return NUM; } -tcp-urg { yylval.i = 0x20; return NUM; } -[A-Za-z0-9]([-_.A-Za-z0-9]*[.A-Za-z0-9])? { - yylval.s = sdup((char *)yytext); return ID; } -"\\"[^ !()\n\t]+ { yylval.s = sdup((char *)yytext + 1); return ID; } -[^ \[\]\t\n\-_.A-Za-z0-9!<>()&|=]+ { - bpf_error("illegal token: %s", yytext); } -. { bpf_error("illegal char '%c'", *yytext); } -%% -void -lex_init(buf) - const char *buf; -{ -#ifdef FLEX_SCANNER - in_buffer = yy_scan_string(buf); -#else - in_buffer = buf; -#endif -} - -/* - * Do any cleanup necessary after parsing. - */ -void -lex_cleanup() -{ -#ifdef FLEX_SCANNER - if (in_buffer != NULL) - yy_delete_buffer(in_buffer); - in_buffer = NULL; -#endif -} - -/* - * Also define a yywrap. Note that if we're using flex, it will - * define a macro to map this identifier to pcap_wrap. - */ -int -yywrap() -{ - return 1; -} - -/* Hex digit to integer. */ -static inline int -xdtoi(c) - register int c; -{ - if (isdigit(c)) - return c - '0'; - else if (islower(c)) - return c - 'a' + 10; - else - return c - 'A' + 10; -} - -/* - * Convert string to integer. Just like atoi(), but checks for - * preceding 0x or 0 and uses hex or octal instead of decimal. - */ -static int -stoi(s) - char *s; -{ - int base = 10; - int n = 0; - - if (*s == '0') { - if (s[1] == 'x' || s[1] == 'X') { - s += 2; - base = 16; - } - else { - base = 8; - s += 1; - } - } - while (*s) - n = n * base + xdtoi(*s++); - - return n; -} diff --git a/contrib/libpcap/sll.h b/contrib/libpcap/sll.h deleted file mode 100644 index 85a3a9d..0000000 --- a/contrib/libpcap/sll.h +++ /dev/null @@ -1,124 +0,0 @@ -/*- - * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from the Stanford/CMU enet packet filter, - * (net/enet.c) distributed as part of 4.3BSD, and code contributed - * to Berkeley by Steven McCanne and Van Jacobson both of Lawrence - * Berkeley Laboratory. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#) $Header: /tcpdump/master/libpcap/sll.h,v 1.7 2002/06/11 17:04:48 itojun Exp $ (LBL) - */ - -/* - * For captures on Linux cooked sockets, we construct a fake header - * that includes: - * - * a 2-byte "packet type" which is one of: - * - * LINUX_SLL_HOST packet was sent to us - * LINUX_SLL_BROADCAST packet was broadcast - * LINUX_SLL_MULTICAST packet was multicast - * LINUX_SLL_OTHERHOST packet was sent to somebody else - * LINUX_SLL_OUTGOING packet was sent *by* us; - * - * a 2-byte Ethernet protocol field; - * - * a 2-byte link-layer type; - * - * a 2-byte link-layer address length; - * - * an 8-byte source link-layer address, whose actual length is - * specified by the previous value. - * - * All fields except for the link-layer address are in network byte order. - * - * DO NOT change the layout of this structure, or change any of the - * LINUX_SLL_ values below. If you must change the link-layer header - * for a "cooked" Linux capture, introduce a new DLT_ type (ask - * "tcpdump-workers@tcpdump.org" for one, so that you don't give it a - * value that collides with a value already being used), and use the - * new header in captures of that type, so that programs that can - * handle DLT_LINUX_SLL captures will continue to handle them correctly - * without any change, and so that capture files with different headers - * can be told apart and programs that read them can dissect the - * packets in them. - */ - -/* - * A DLT_LINUX_SLL fake link-layer header. - */ -#define SLL_HDR_LEN 16 /* total header length */ -#define SLL_ADDRLEN 8 /* length of address field */ - -struct sll_header { - u_int16_t sll_pkttype; /* packet type */ - u_int16_t sll_hatype; /* link-layer address type */ - u_int16_t sll_halen; /* link-layer address length */ - u_int8_t sll_addr[SLL_ADDRLEN]; /* link-layer address */ - u_int16_t sll_protocol; /* protocol */ -}; - -/* - * The LINUX_SLL_ values for "sll_pkttype"; these correspond to the - * PACKET_ values on Linux, but are defined here so that they're - * available even on systems other than Linux, and so that they - * don't change even if the PACKET_ values change. - */ -#define LINUX_SLL_HOST 0 -#define LINUX_SLL_BROADCAST 1 -#define LINUX_SLL_MULTICAST 2 -#define LINUX_SLL_OTHERHOST 3 -#define LINUX_SLL_OUTGOING 4 - -/* - * The LINUX_SLL_ values for "sll_protocol"; these correspond to the - * ETH_P_ values on Linux, but are defined here so that they're - * available even on systems other than Linux. We assume, for now, - * that the ETH_P_ values won't change in Linux; if they do, then: - * - * if we don't translate them in "pcap-linux.c", capture files - * won't necessarily be readable if captured on a system that - * defines ETH_P_ values that don't match these values; - * - * if we do translate them in "pcap-linux.c", that makes life - * unpleasant for the BPF code generator, as the values you test - * for in the kernel aren't the values that you test for when - * reading a capture file, so the fixup code run on BPF programs - * handed to the kernel ends up having to do more work. - * - * Add other values here as necessary, for handling packet types that - * might show up on non-Ethernet, non-802.x networks. (Not all the ones - * in the Linux "if_ether.h" will, I suspect, actually show up in - * captures.) - */ -#define LINUX_SLL_P_802_3 0x0001 /* Novell 802.3 frames without 802.2 LLC header */ -#define LINUX_SLL_P_802_2 0x0004 /* 802.2 frames (not D/I/X Ethernet) */ diff --git a/contrib/libpcap/snprintf.c b/contrib/libpcap/snprintf.c deleted file mode 100644 index 111e78e..0000000 --- a/contrib/libpcap/snprintf.c +++ /dev/null @@ -1,632 +0,0 @@ -/* - * Copyright (c) 1995-1999 Kungliga Tekniska Högskolan - * (Royal Institute of Technology, Stockholm, Sweden). - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * 3. Neither the name of the Institute nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -/* $Id: snprintf.c,v 1.1 2003/12/15 01:35:05 guy Exp $ */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/libpcap/snprintf.c,v 1.1 2003/12/15 01:35:05 guy Exp $"; -#endif - -#include <stdio.h> -#include <stdarg.h> -#include <stdlib.h> -#include <string.h> -#include <ctype.h> -#include <sys/types.h> - -#include <pcap-int.h> - -enum format_flags { - minus_flag = 1, - plus_flag = 2, - space_flag = 4, - alternate_flag = 8, - zero_flag = 16 -}; - -/* - * Common state - */ - -struct state { - unsigned char *str; - unsigned char *s; - unsigned char *theend; - size_t sz; - size_t max_sz; - int (*append_char)(struct state *, unsigned char); - int (*reserve)(struct state *, size_t); - /* XXX - methods */ -}; - -#ifndef HAVE_VSNPRINTF -static int -sn_reserve (struct state *state, size_t n) -{ - return state->s + n > state->theend; -} - -static int -sn_append_char (struct state *state, unsigned char c) -{ - if (sn_reserve (state, 1)) { - return 1; - } else { - *state->s++ = c; - return 0; - } -} -#endif - -#if 0 -static int -as_reserve (struct state *state, size_t n) -{ - if (state->s + n > state->theend) { - int off = state->s - state->str; - unsigned char *tmp; - - if (state->max_sz && state->sz >= state->max_sz) - return 1; - - state->sz = max(state->sz * 2, state->sz + n); - if (state->max_sz) - state->sz = min(state->sz, state->max_sz); - tmp = realloc (state->str, state->sz); - if (tmp == NULL) - return 1; - state->str = tmp; - state->s = state->str + off; - state->theend = state->str + state->sz - 1; - } - return 0; -} - -static int -as_append_char (struct state *state, unsigned char c) -{ - if(as_reserve (state, 1)) - return 1; - else { - *state->s++ = c; - return 0; - } -} -#endif - -static int -append_number(struct state *state, - unsigned long num, unsigned base, char *rep, - int width, int prec, int flags, int minusp) -{ - int len = 0; - int i; - - /* given precision, ignore zero flag */ - if(prec != -1) - flags &= ~zero_flag; - else - prec = 1; - /* zero value with zero precision -> "" */ - if(prec == 0 && num == 0) - return 0; - do{ - if((*state->append_char)(state, rep[num % base])) - return 1; - len++; - num /= base; - }while(num); - prec -= len; - /* pad with prec zeros */ - while(prec-- > 0){ - if((*state->append_char)(state, '0')) - return 1; - len++; - } - /* add length of alternate prefix (added later) to len */ - if(flags & alternate_flag && (base == 16 || base == 8)) - len += base / 8; - /* pad with zeros */ - if(flags & zero_flag){ - width -= len; - if(minusp || (flags & space_flag) || (flags & plus_flag)) - width--; - while(width-- > 0){ - if((*state->append_char)(state, '0')) - return 1; - len++; - } - } - /* add alternate prefix */ - if(flags & alternate_flag && (base == 16 || base == 8)){ - if(base == 16) - if((*state->append_char)(state, rep[10] + 23)) /* XXX */ - return 1; - if((*state->append_char)(state, '0')) - return 1; - } - /* add sign */ - if(minusp){ - if((*state->append_char)(state, '-')) - return 1; - len++; - } else if(flags & plus_flag) { - if((*state->append_char)(state, '+')) - return 1; - len++; - } else if(flags & space_flag) { - if((*state->append_char)(state, ' ')) - return 1; - len++; - } - if(flags & minus_flag) - /* swap before padding with spaces */ - for(i = 0; i < len / 2; i++){ - char c = state->s[-i-1]; - state->s[-i-1] = state->s[-len+i]; - state->s[-len+i] = c; - } - width -= len; - while(width-- > 0){ - if((*state->append_char)(state, ' ')) - return 1; - len++; - } - if(!(flags & minus_flag)) - /* swap after padding with spaces */ - for(i = 0; i < len / 2; i++){ - char c = state->s[-i-1]; - state->s[-i-1] = state->s[-len+i]; - state->s[-len+i] = c; - } - - return 0; -} - -static int -append_string (struct state *state, - unsigned char *arg, - int width, - int prec, - int flags) -{ - if(prec != -1) - width -= prec; - else - width -= strlen((char *)arg); - if(!(flags & minus_flag)) - while(width-- > 0) - if((*state->append_char) (state, ' ')) - return 1; - if (prec != -1) { - while (*arg && prec--) - if ((*state->append_char) (state, *arg++)) - return 1; - } else { - while (*arg) - if ((*state->append_char) (state, *arg++)) - return 1; - } - if(flags & minus_flag) - while(width-- > 0) - if((*state->append_char) (state, ' ')) - return 1; - return 0; -} - -static int -append_char(struct state *state, - unsigned char arg, - int width, - int flags) -{ - while(!(flags & minus_flag) && --width > 0) - if((*state->append_char) (state, ' ')) - return 1; - - if((*state->append_char) (state, arg)) - return 1; - while((flags & minus_flag) && --width > 0) - if((*state->append_char) (state, ' ')) - return 1; - - return 0; -} - -/* - * This can't be made into a function... - */ - -#define PARSE_INT_FORMAT(res, arg, unsig) \ -if (long_flag) \ - res = (unsig long)va_arg(arg, unsig long); \ -else if (short_flag) \ - res = (unsig short)va_arg(arg, unsig int); \ -else \ - res = (unsig int)va_arg(arg, unsig int) - -/* - * zyxprintf - return 0 or -1 - */ - -static int -xyzprintf (struct state *state, const char *char_format, va_list ap) -{ - const unsigned char *format = (const unsigned char *)char_format; - unsigned char c; - - while((c = *format++)) { - if (c == '%') { - int flags = 0; - int width = 0; - int prec = -1; - int long_flag = 0; - int short_flag = 0; - - /* flags */ - while((c = *format++)){ - if(c == '-') - flags |= minus_flag; - else if(c == '+') - flags |= plus_flag; - else if(c == ' ') - flags |= space_flag; - else if(c == '#') - flags |= alternate_flag; - else if(c == '0') - flags |= zero_flag; - else - break; - } - - if((flags & space_flag) && (flags & plus_flag)) - flags ^= space_flag; - - if((flags & minus_flag) && (flags & zero_flag)) - flags ^= zero_flag; - - /* width */ - if (isdigit(c)) - do { - width = width * 10 + c - '0'; - c = *format++; - } while(isdigit(c)); - else if(c == '*') { - width = va_arg(ap, int); - c = *format++; - } - - /* precision */ - if (c == '.') { - prec = 0; - c = *format++; - if (isdigit(c)) - do { - prec = prec * 10 + c - '0'; - c = *format++; - } while(isdigit(c)); - else if (c == '*') { - prec = va_arg(ap, int); - c = *format++; - } - } - - /* size */ - - if (c == 'h') { - short_flag = 1; - c = *format++; - } else if (c == 'l') { - long_flag = 1; - c = *format++; - } - - switch (c) { - case 'c' : - if(append_char(state, va_arg(ap, int), width, flags)) - return -1; - break; - case 's' : - if (append_string(state, - va_arg(ap, unsigned char*), - width, - prec, - flags)) - return -1; - break; - case 'd' : - case 'i' : { - long arg; - unsigned long num; - int minusp = 0; - - PARSE_INT_FORMAT(arg, ap, signed); - - if (arg < 0) { - minusp = 1; - num = -arg; - } else - num = arg; - - if (append_number (state, num, 10, "0123456789", - width, prec, flags, minusp)) - return -1; - break; - } - case 'u' : { - unsigned long arg; - - PARSE_INT_FORMAT(arg, ap, unsigned); - - if (append_number (state, arg, 10, "0123456789", - width, prec, flags, 0)) - return -1; - break; - } - case 'o' : { - unsigned long arg; - - PARSE_INT_FORMAT(arg, ap, unsigned); - - if (append_number (state, arg, 010, "01234567", - width, prec, flags, 0)) - return -1; - break; - } - case 'x' : { - unsigned long arg; - - PARSE_INT_FORMAT(arg, ap, unsigned); - - if (append_number (state, arg, 0x10, "0123456789abcdef", - width, prec, flags, 0)) - return -1; - break; - } - case 'X' :{ - unsigned long arg; - - PARSE_INT_FORMAT(arg, ap, unsigned); - - if (append_number (state, arg, 0x10, "0123456789ABCDEF", - width, prec, flags, 0)) - return -1; - break; - } - case 'p' : { - unsigned long arg = (unsigned long)va_arg(ap, void*); - - if (append_number (state, arg, 0x10, "0123456789ABCDEF", - width, prec, flags, 0)) - return -1; - break; - } - case 'n' : { - int *arg = va_arg(ap, int*); - *arg = state->s - state->str; - break; - } - case '\0' : - --format; - /* FALLTHROUGH */ - case '%' : - if ((*state->append_char)(state, c)) - return -1; - break; - default : - if ( (*state->append_char)(state, '%') - || (*state->append_char)(state, c)) - return -1; - break; - } - } else - if ((*state->append_char) (state, c)) - return -1; - } - return 0; -} - -#ifndef HAVE_SNPRINTF -int -snprintf (char *str, size_t sz, const char *format, ...) -{ - va_list args; - int ret; - - va_start(args, format); - ret = vsnprintf (str, sz, format, args); - -#ifdef PARANOIA - { - int ret2; - char *tmp; - - tmp = malloc (sz); - if (tmp == NULL) - abort (); - - ret2 = vsprintf (tmp, format, args); - if (ret != ret2 || strcmp(str, tmp)) - abort (); - free (tmp); - } -#endif - - va_end(args); - return ret; -} -#endif - -#if 0 -#ifndef HAVE_ASPRINTF -int -asprintf (char **ret, const char *format, ...) -{ - va_list args; - int val; - - va_start(args, format); - val = vasprintf (ret, format, args); - -#ifdef PARANOIA - { - int ret2; - char *tmp; - tmp = malloc (val + 1); - if (tmp == NULL) - abort (); - - ret2 = vsprintf (tmp, format, args); - if (val != ret2 || strcmp(*ret, tmp)) - abort (); - free (tmp); - } -#endif - - va_end(args); - return val; -} -#endif - -#ifndef HAVE_ASNPRINTF -int -asnprintf (char **ret, size_t max_sz, const char *format, ...) -{ - va_list args; - int val; - - va_start(args, format); - val = vasnprintf (ret, max_sz, format, args); - -#ifdef PARANOIA - { - int ret2; - char *tmp; - tmp = malloc (val + 1); - if (tmp == NULL) - abort (); - - ret2 = vsprintf (tmp, format, args); - if (val != ret2 || strcmp(*ret, tmp)) - abort (); - free (tmp); - } -#endif - - va_end(args); - return val; -} -#endif - -#ifndef HAVE_VASPRINTF -int -vasprintf (char **ret, const char *format, va_list args) -{ - return vasnprintf (ret, 0, format, args); -} -#endif - - -#ifndef HAVE_VASNPRINTF -int -vasnprintf (char **ret, size_t max_sz, const char *format, va_list args) -{ - int st; - size_t len; - struct state state; - - state.max_sz = max_sz; - state.sz = 1; - state.str = malloc(state.sz); - if (state.str == NULL) { - *ret = NULL; - return -1; - } - state.s = state.str; - state.theend = state.s + state.sz - 1; - state.append_char = as_append_char; - state.reserve = as_reserve; - - st = xyzprintf (&state, format, args); - if (st) { - free (state.str); - *ret = NULL; - return -1; - } else { - char *tmp; - - *state.s = '\0'; - len = state.s - state.str; - tmp = realloc (state.str, len+1); - if (tmp == NULL) { - free (state.str); - *ret = NULL; - return -1; - } - *ret = tmp; - return len; - } -} -#endif -#endif - -#ifndef HAVE_VSNPRINTF -int -vsnprintf (char *str, size_t sz, const char *format, va_list args) -{ - struct state state; - int ret; - unsigned char *ustr = (unsigned char *)str; - - state.max_sz = 0; - state.sz = sz; - state.str = ustr; - state.s = ustr; - state.theend = ustr + sz - 1; - state.append_char = sn_append_char; - state.reserve = sn_reserve; - - ret = xyzprintf (&state, format, args); - *state.s = '\0'; - if (ret) - return sz; - else - return state.s - state.str; -} -#endif - diff --git a/contrib/libpcap/sunatmpos.h b/contrib/libpcap/sunatmpos.h deleted file mode 100644 index 7538b2a..0000000 --- a/contrib/libpcap/sunatmpos.h +++ /dev/null @@ -1,45 +0,0 @@ -/* - * Copyright (c) 1997 Yen Yen Lim and North Dakota State University - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Yen Yen Lim and - North Dakota State University - * 4. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - * @(#) $Header: /tcpdump/master/libpcap/sunatmpos.h,v 1.1 2002/07/11 09:06:47 guy Exp $ (LBL) - */ - -/* SunATM header for ATM packet */ -#define SUNATM_DIR_POS 0 -#define SUNATM_VPI_POS 1 -#define SUNATM_VCI_POS 2 -#define SUNATM_PKT_BEGIN_POS 4 /* Start of ATM packet */ - -/* Protocol type values in the bottom for bits of the byte at SUNATM_DIR_POS. */ -#define PT_LANE 0x01 /* LANE */ -#define PT_LLC 0x02 /* LLC encapsulation */ -#define PT_ILMI 0x05 /* ILMI */ -#define PT_QSAAL 0x06 /* Q.SAAL */ |
