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Diffstat (limited to 'contrib/libpcap/pcap1.h')
| -rw-r--r-- | contrib/libpcap/pcap1.h | 302 |
1 files changed, 302 insertions, 0 deletions
diff --git a/contrib/libpcap/pcap1.h b/contrib/libpcap/pcap1.h new file mode 100644 index 0000000..08d0c5a --- /dev/null +++ b/contrib/libpcap/pcap1.h @@ -0,0 +1,302 @@ +/* -*- 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 |
