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* Revert IPSEC patches.Luiz Otavio O Souza2015-10-201-2/+1
| | | | | | | | | Revert "Importing pfSense patch IPSEC_sysctl.RELENG_10.diff" This reverts commit 1a5bcc816de96758225aa0a4d2b5ddc7b88b6b58. TAG: IPSEC-HEAD Issue: #4841
* Importing pfSense patch IPSEC_sysctl.RELENG_10.diffRenato Botelho2015-08-171-1/+2
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* MFC r266842: netinet/in.h: Expose htonl(), htons(), ntohl() and ntohs() injilles2014-10-291-2/+2
| | | | | | | | | | | | | | | strict POSIX mode. Put the htonl(), htons(), ntohl() and ntohs() declarations under __POSIX_VISIBLE >= 200112. POSIX.1-2001 and newer require these to be exposed from <netinet/in.h> (as well as <arpa/inet.h>). Note that it may be unnecessary to check __POSIX_VISIBLE >= 200112 because older versions of POSIX and the C standard do not define this header. However, other places in the same file already perform the check. PR: 188316 Submitted by: Christian Neukirchen
* MFC r264212,r264213,r264248,r265776,r265811,r265909:kevlo2014-05-131-0/+5
| | | | | | | | | | | | | | - Add support for UDP-Lite protocol (RFC 3828) to IPv4 and IPv6 stacks. Tested with vlc and a test suite [1]. [1] http://www.erg.abdn.ac.uk/~gerrit/udp-lite/files/udplite_linux.tar.gz Reviewed by: jhb, glebius, adrian - Fix a logic bug which prevented the sending of UDP packet with 0 checksum. - Disable TX checksum offload for UDP-Lite completely. It wasn't used for partial checksum coverage, but even for full checksum coverage it doesn't work.
* Remove most of the remaining sysctl name list macros. They were onlyjhb2013-08-261-18/+0
| | | | | | | | ever intended for use in sysctl(8) and it has not used them for many years. Reviewed by: bde Tested by: exp-run by bdrewery
* Move IPPROTO_IPV6 from #ifdef __BSD_VISIBLE to #if __POSIX_VISIBLE >= 201112cperciva2013-04-271-1/+1
| | | | | | | | since POSIX 2001 states that it shall be defined. Reported by: sbruno Reviewed by: jilles MFC after: 1 week
* Switch the entire IPv4 stack to keep the IP packet headerglebius2012-10-221-27/+0
| | | | | | | | | | | | | | | | | | | | | | | in network byte order. Any host byte order processing is done in local variables and host byte order values are never[1] written to a packet. After this change a packet processed by the stack isn't modified at all[2] except for TTL. After this change a network stack hacker doesn't need to scratch his head trying to figure out what is the byte order at the given place in the stack. [1] One exception still remains. The raw sockets convert host byte order before pass a packet to an application. Probably this would remain for ages for compatibility. [2] The ip_input() still subtructs header len from ip->ip_len, but this is planned to be fixed soon. Reviewed by: luigi, Maxim Dounin <mdounin mdounin.ru> Tested by: ray, Olivier Cochard-Labbe <olivier cochard.me>
* Add a IP_RECVTOS socket option to receive for received UDP/IPv4tuexen2012-06-121-0/+1
| | | | | | | | packets a cmsg of type IP_RECVTOS which contains the TOS byte. Much like IP_RECVTTL does for TTL. This allows to implement a protocol on top of UDP and implementing ECN. MFC after: 3 days
* Add IPPROTO_MPLS (rfc4023) IP protocol definitionemaste2012-05-271-0/+1
| | | | | | There are currently no in-tree consumers; I'm adding it now for use by vendor code. This matches the change OpenBSD made while implementing MPLS in gif(4).
* Add support for IPv4 /31 prefixes, as described in RFC3021.glebius2011-10-151-0/+2
| | | | | | | To run a /31 network, participating hosts MUST drop support for directed broadcasts, and treat the first and last addresses on subnet as unicast. The broadcast address for the prefix should be the link local broadcast address, INADDR_BROADCAST.
* Make the RPC specific __rpc_inet_ntop() and __rpc_inet_pton() generalattilio2010-09-241-0/+2
| | | | | | | | | | in the kernel (just as inet_ntoa() and inet_aton()) are and sync their prototype accordingly with already mentioned functions. Sponsored by: Sandvine Incorporated Reviewed by: emaste, rstone Approved by: dfr MFC after: 2 weeks
* MFp4: anchie_soc2009 branch:anchie2010-08-191-0/+1
| | | | | | | | | | | | | | | | | | | | Add kernel side support for Secure Neighbor Discovery (SeND), RFC 3971. The implementation consists of a kernel module that gets packets from the nd6 code, sends them to user space on a dedicated socket and reinjects them back for further processing. Hooks are used from nd6 code paths to divert relevant packets to the send implementation for processing in user space. The hooks are only triggered if the send module is loaded. In case no user space application is connected to the send socket, processing continues normaly as if the module would not be loaded. Unloading the module is not possible at this time due to missing nd6 locking. The native SeND socket is similar to a raw IPv6 socket but with its own, internal pseudo-protocol. Approved by: bz (mentor)
* Add definition of IPv6 mobility header's protocol number, as assigned bydelphij2010-03-311-0/+1
| | | | | | IANA and defined in RFC 3775. Obtained from: KAME
* bring in several cleanups tested in ipfw3-head branch, namely:luigi2009-12-281-0/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | r201011 - move most of ng_ipfw.h into ip_fw_private.h, as this code is ipfw-specific. This removes a dependency on ng_ipfw.h from some files. - move many equivalent definitions of direction (IN, OUT) for reinjected packets into ip_fw_private.h - document the structure of the packet tags used for dummynet and netgraph; r201049 - merge some common code to attach/detach hooks into a single function. r201055 - remove some duplicated code in ip_fw_pfil. The input and output processing uses almost exactly the same code so there is no need to use two separate hooks. ip_fw_pfil.o goes from 2096 to 1382 bytes of .text r201057 (see the svn log for full details) - macros to make the conversion of ip_len and ip_off between host and network format more explicit r201113 (the remaining parts) - readability fixes -- put braces around some large for() blocks, localize variables so the compiler does not think they are uninitialized, do not insist on precise allocation size if we have more than we need. r201119 - when doing a lookup, keys must be in big endian format because this is what the radix code expects (this fixes a bug in the recently-introduced 'lookup' option) No ABI changes in this commit. MFC after: 1 week
* Add new sockopt names for ipfw and dummynet.luigi2009-12-021-0/+8
| | | | | | | | This commit is just grabbing entries for the new names that will be used in the future, so you don't need to rebuild anything now. MFC after: 3 days
* Move inet_aton() (specular to inet_ntoa(), already present in libkern)attilio2009-11-121-0/+1
| | | | | | | | into libkern in order to made it usable by other modules than alias_proxy. Obtained from: Sandvine Incorporated Sponsored by: Sandvine Incorporated MFC: 1 week
* Move the duplicate definition of struct sockaddr_storage to its ownphk2009-09-081-21/+1
| | | | | | | include file, and include this where the previous duplicate definitions were. Static program checkers like FlexeLint rightfully take a dim view of duplicate definitions, even if they currently are identical.
* - Rename IP_NONLOCALOK IP socket option to IP_BINDANY, to be more consistentpjd2009-06-011-2/+1
| | | | | | | | | | | | | with OpenBSD (and BSD/OS originally). We can't easly do it SOL_SOCKET option as there is no more space for more SOL_SOCKET options, but this option also fits better as an IP socket option, it seems. - Implement this functionality also for IPv6 and RAW IP sockets. - Always compile it in (don't use additional kernel options). - Remove sysctl to turn this functionality on and off. - Introduce new privilege - PRIV_NETINET_BINDANY, which allows to use this functionality (currently only unjail root can use it). Discussed with: julian, adrian, jhb, rwatson, kmacy
* Namespace: Defining htonl() and friends here instead of arpa/inet.h isdas2009-03-141-2/+2
| | | | a BSD extension.
* Merge IGMPv3 and Source-Specific Multicast (SSM) to the FreeBSDbms2009-03-091-0/+1
| | | | | | | | | | | IPv4 stack. Diffs are minimized against p4. PCS has been used for some protocol verification, more widespread testing of recorded sources in Group-and-Source queries is needed. sizeof(struct igmpstat) has changed. __FreeBSD_version is bumped to 800070.
* Add various defines/macros required by IGMPv3:bms2009-03-041-1/+10
| | | | | | | | * MCAST_UNDEFINED state. * in_allhosts() macro (group is 224.0.0.1). This uses a const endian comparison. * IP_MAX_GROUP_SRC_FILTER, IP_MAX_SOCK_SRC_FILTER default resource limits.
* Better comment what the socket option does. Thanks to Sam Leffleradrian2009-01-091-1/+2
| | | | for suggesting this.
* Implement a new IP option (not compiled/enabled by default) to allowadrian2009-01-091-0/+1
| | | | | | | | | | | | | | | | | | | | | | applications to specify a non-local IP address when bind()'ing a socket to a local endpoint. This allows applications to spoof the client IP address of connections if (obviously!) they somehow are able to receive the traffic normally destined to said clients. This patch doesn't include any changes to ipfw or the bridging code to redirect the client traffic through the PCB checks so TCP gets a shot at it. The normal behaviour is that packets with a non-local destination IP address are not handled locally. This can be dealth with some IPFW hackery; modifications to IPFW to make this less hacky will occur in subsequent commmits. Thanks to Julian Elischer and others at Ironport. This work was approved and donated before Cisco acquired them. Obtained from: Julian Elischer and others MFC after: 2 weeks
* Rather than using hidden includes (with cicular dependencies),bz2008-12-021-4/+0
| | | | | | | | | | | directly include only the header files needed. This reduces the unneeded spamming of various headers into lots of files. For now, this leaves us with very few modules including vnet.h and thus needing to depend on opt_route.h. Reviewed by: brooks, gnn, des, zec, imp Sponsored by: The FreeBSD Foundation
* Step 1.5 of importing the network stack virtualization infrastructurezec2008-10-021-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | from the vimage project, as per plan established at devsummit 08/08: http://wiki.freebsd.org/Image/Notes200808DevSummit Introduce INIT_VNET_*() initializer macros, VNET_FOREACH() iterator macros, and CURVNET_SET() context setting macros, all currently resolving to NOPs. Prepare for virtualization of selected SYSCTL objects by introducing a family of SYSCTL_V_*() macros, currently resolving to their global counterparts, i.e. SYSCTL_V_INT() == SYSCTL_INT(). Move selected #defines from sys/sys/vimage.h to newly introduced header files specific to virtualized subsystems (sys/net/vnet.h, sys/netinet/vinet.h etc.). All the changes are verified to have zero functional impact at this point in time by doing MD5 comparision between pre- and post-change object files(*). (*) netipsec/keysock.c did not validate depending on compile time options. Implemented by: julian, bz, brooks, zec Reviewed by: julian, bz, brooks, kris, rwatson, ... Approved by: julian (mentor) Obtained from: //depot/projects/vimage-commit2/... X-MFC after: never Sponsored by: NLnet Foundation, The FreeBSD Foundation
* Clean up the code that checks the types of address so that it isgnn2008-04-171-0/+2
| | | | | | | | | | | done by understandable macros. Fix the bug that prevented the system from responding on interfaces with link local addresses assigned. PR: 120958 Submitted by: James Snow <snow at teardrop.org> MFC after: 2 weeks
* Change the default port range for outgoing connections by introducingrpaulo2008-03-041-4/+8
| | | | | | | | | | | | | | | | IPPORT_EPHEMERALFIRST and IPPORT_EPHEMERALLAST with values 10000 and 65535 respectively. The rationale behind is that it makes the attacker's life more difficult if he/she wants to guess the ephemeral port range and also lowers the probability of a port colision (described in draft-ietf-tsvwg-port-randomization-01.txt). While there, remove code duplication in in_pcbbind_setup(). Submitted by: Fernando Gont <fernando at gont.com.ar> Approved by: njl (mentor) Reviewed by: silby, bms Discussed on: freebsd-net
* Import rewrite of IPv4 socket multicast layer to support source-specificbms2007-06-121-1/+123
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | and protocol-independent host mode multicast. The code is written to accomodate IPv6, IGMPv3 and MLDv2 with only a little additional work. This change only pertains to FreeBSD's use as a multicast end-station and does not concern multicast routing; for an IGMPv3/MLDv2 router implementation, consider the XORP project. The work is based on Wilbert de Graaf's IGMPv3 code drop for FreeBSD 4.6, which is available at: http://www.kloosterhof.com/wilbert/igmpv3.html Summary * IPv4 multicast socket processing is now moved out of ip_output.c into a new module, in_mcast.c. * The in_mcast.c module implements the IPv4 legacy any-source API in terms of the protocol-independent source-specific API. * Source filters are lazy allocated as the common case does not use them. They are part of per inpcb state and are covered by the inpcb lock. * struct ip_mreqn is now supported to allow applications to specify multicast joins by interface index in the legacy IPv4 any-source API. * In UDP, an incoming multicast datagram only requires that the source port matches the 4-tuple if the socket was already bound by source port. An unbound socket SHOULD be able to receive multicasts sent from an ephemeral source port. * The UDP socket multicast filter mode defaults to exclusive, that is, sources present in the per-socket list will be blocked from delivery. * The RFC 3678 userland functions have been added to libc: setsourcefilter, getsourcefilter, setipv4sourcefilter, getipv4sourcefilter. * Definitions for IGMPv3 are merged but not yet used. * struct sockaddr_storage is now referenced from <netinet/in.h>. It is therefore defined there if not already declared in the same way as for the C99 types. * The RFC 1724 hack (specify 0.0.0.0/8 addresses to IP_MULTICAST_IF which are then interpreted as interface indexes) is now deprecated. * A patch for the Rhyolite.com routed in the FreeBSD base system is available in the -net archives. This only affects individuals running RIPv1 or RIPv2 via point-to-point and/or unnumbered interfaces. * Make IPv6 detach path similar to IPv4's in code flow; functionally same. * Bump __FreeBSD_version to 700048; see UPDATING. This work was financially supported by another FreeBSD committer. Obtained from: p4://bms_netdev Submitted by: Wilbert de Graaf (original work) Reviewed by: rwatson (locking), silence from fenner, net@ (but with encouragement)
* Add INADDR_ALLRPTS_GROUP define for 224.0.0.22 for future IGMPv3 support.bms2007-02-271-0/+1
| | | | Obtained from: OpenSolaris
* Import macros IN_LINKLOCAL(), IN_PRIVATE(), IN_LOCAL_GROUP(), IN_ANY_LOCAL().bms2007-01-311-0/+10
| | | | | | | | | | | | | | | | | This is not a functional change. IN_LINKLOCAL() tests if an address falls within the IPv4 link-local prefix. IN_PRIVATE() tests if an address falls within an RFC 1918 private prefix. IN_LOCAL_GROUP() tests if an address falls within the statically assigned link-local multicast scope specified in RFC 2365. IN_ANY_LOCAL() tests for either of IN_LINKLOCAL() or IN_LOCAL_GROUP(). As with the existing macros in the FreeBSD netinet stack, comparisons are performed in host-byte order. See also: RFC 1918, RFC 2365, RFC 3927 Obtained from: NetBSD (dyoung@) MFC after: 2 weeks
* Summer of Code 2005: improve libalias - part 2 of 2piso2006-12-291-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | With the second (and last) part of my previous Summer of Code work, we get: -ipfw's in kernel nat -redirect_* and LSNAT support General information about nat syntax and some examples are available in the ipfw (8) man page. The redirect and LSNAT syntax are identical to natd, so please refer to natd (8) man page. To enable in kernel nat in rc.conf, two options were added: o firewall_nat_enable: equivalent to natd_enable o firewall_nat_interface: equivalent to natd_interface Remember to set net.inet.ip.fw.one_pass to 0, if you want the packet to continue being checked by the firewall ruleset after being (de)aliased. NOTA BENE: due to some problems with libalias architecture, in kernel nat won't work with TSO enabled nic, thus you have to disable TSO via ifconfig (ifconfig foo0 -tso). Approved by: glebius (mentor)
* Fix a long-standing limitation in IPv4 multicast group membership.bms2006-05-141-1/+8
| | | | | | | | | | | | | | By making the imo_membership array a dynamically allocated vector, this minimizes disruption to existing IPv4 multicast code. This change breaks the ABI for the kernel module ip_mroute.ko, and may cause a small amount of churn for folks working on the IGMPv3 merge. Previously, sockets were subject to a compile-time limitation on the number of IPv4 group memberships, which was hard-coded to 20. The imo_membership relationship, however, is 1:1 with regards to a tuple of multicast group address and interface address. Users who ran routing protocols such as OSPF ran into this limitation on machines with a large system interface tree.
* Use consistent indent character as other IPPROTO_* lines did.delphij2005-12-201-1/+1
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* Add protocol number for SCTP.gnn2005-12-201-0/+1
| | | | | Submitted by: Randall Stewart rrs at cisco.com MFC after: 1 week
* Implement IP_DONTFRAG IP socket option enabling the Don't Fragmentandre2005-09-261-0/+1
| | | | | | | | | | | | flag on IP packets. Currently this option is only repected on udp and raw ip sockets. On tcp sockets the DF flag is controlled by the path MTU discovery option. Sending a packet larger than the MTU size of the egress interface returns an EMSGSIZE error. Discussed with: rwatson Sponsored by: TCP/IP Optimization Fundraise 2005
* Take a first cut at cleaning up ifnet removal and multicast socketrwatson2005-09-181-0/+1
| | | | | | | | | | | | | | | | | | | | | | | panics, which occur when stale ifnet pointers are left in struct moptions hung off of inpcbs: - Add in_ifdetach(), which matches in6_ifdetach(), and allows the protocol to perform early tear-down on the interface early in if_detach(). - Annotate that if_detach() needs careful consideration. - Remove calls to in_pcbpurgeif0() in the handling of SIOCDIFADDR -- this is not the place to detect interface removal! This also removes what is basically a nasty (and now unnecessary) hack. - Invoke in_pcbpurgeif0() from in_ifdetach(), in both raw and UDP IPv4 sockets. It is now possible to run the msocket_ifnet_remove regression test using HEAD without panicking. MFC after: 3 days
* Add socketoption IP_MINTTL. May be used to set the minimum acceptableandre2005-08-221-0/+1
| | | | | | | | | | | | | | | | | TTL a packet must have when received on a socket. All packets with a lower TTL are silently dropped. Works on already connected/connecting and listening sockets for RAW/UDP/TCP. This option is only really useful when set to 255 preventing packets from outside the directly connected networks reaching local listeners on sockets. Allows userland implementation of 'The Generalized TTL Security Mechanism (GTSM)' according to RFC3682. Examples of such use include the Cisco IOS BGP implementation command "neighbor ttl-security". MFC after: 2 weeks Sponsored by: TCP/IP Optimization Fundraise 2005
* Add CARP (Common Address Redundancy Protocol), which allows multipleglebius2005-02-221-0/+2
| | | | | | | | | | | | | hosts to share an IP address, providing high availability and load balancing. Original work on CARP done by Michael Shalayeff, with many additions by Marco Pfatschbacher and Ryan McBride. FreeBSD port done solely by Max Laier. Patch by: mlaier Obtained from: OpenBSD (mickey, mcbride)
* /* -> /*- for license, minor formatting changesimp2005-01-071-1/+1
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* Pre-emptively define IPPROTO_SPACER to 32767, the same value as PROTO_SPACERandre2004-10-191-0/+6
| | | | | to document that this value is globally assigned for a special purpose and may not be reused within the IPPROTO number space.
* White space cleanup for netinet before branch:rwatson2004-08-161-30/+30
| | | | | | | | | | | - Trailing tab/space cleanup - Remove spurious spaces between or before tabs This change avoids touching files that Andre likely has in his working set for PFIL hooks changes for IPFW/DUMMYNET. Approved by: re (scottl) Submitted by: Xin LI <delphij@frontfree.net>
* Add the function in_localip() which returns 1 if an internet address is forandre2004-08-111-0/+1
| | | | the local host and configured on one of its interfaces.
* Prepare for pf 3.5 import:mlaier2004-06-161-0/+2
| | | | | | | | | | - Remove pflog and pfsync modules. Things will change in such a fashion that there will be one module with pf+pflog that can be loaded into GENERIC without problems (which is what most people want). pfsync is no longer possible as a module. - Add multicast address for in-kernel multicast pfsync protocol. Protocol glue will follow once the import is done. - Add one more mbuf tag
* Introduce a new feature to IPFW2: lookup tables. These are usefulru2004-06-091-0/+6
| | | | | | | for handling large sparse address sets. Initial implementation by Vsevolod Lobko <seva@ip.net.ua>, refined by me. MFC after: 1 week
* Remove advertising clause from University of California Regent'simp2004-04-071-4/+0
| | | | | | | license, per letter dated July 22, 1999 and email from Peter Wemm, Alan Cox and Robert Watson. Approved by: core, peter, alc, rwatson
* correct namespace pollution.ume2003-10-251-2/+1
| | | | Submitted by: bde
* Switch Advanced Sockets API for IPv6 from RFC2292 to RFC3542ume2003-10-241-0/+1
| | | | | | | | | | (aka RFC2292bis). Though I believe this commit doesn't break backward compatibility againt existing binaries, it breaks backward compatibility of API. Now, the applications which use Advanced Sockets API such as telnet, ping6, mld6query and traceroute6 use RFC3542 API. Obtained from: KAME
* Add the IP_ONESBCAST option, to enable undirected IP broadcasts to be sent onbms2003-08-201-0/+2
| | | | | | | | | | specific interfaces. This is required by aodvd, and may in future help us in getting rid of the requirement for BPF from our import of isc-dhcp. Suggested by: fenestro Obtained from: BSD/OS Reviewed by: mini, sam Approved by: jake (mentor)
* 1. Basic PIM kernel supporthsu2003-08-071-0/+16
| | | | | | | | | | | | | | | | | | Disabled by default. To enable it, the new "options PIM" must be added to the kernel configuration file (in addition to MROUTING): options MROUTING # Multicast routing options PIM # Protocol Independent Multicast 2. Add support for advanced multicast API setup/configuration and extensibility. 3. Add support for kernel-level PIM Register encapsulation. Disabled by default. Can be enabled by the advanced multicast API. 4. Implement a mechanism for "multicast bandwidth monitoring and upcalls". Submitted by: Pavlin Radoslavov <pavlin@icir.org>
* Add definitions for IN6ADDR_LINKLOCAL_ALLMDNS_INIT and INADDR_ALLMDNS_GROUP.mdodd2003-04-291-0/+1
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