1/* 2 * Copyright (c) 1994, 1995, 1996 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the Computer Systems 16 * Engineering Group at Lawrence Berkeley Laboratory. 17 * 4. Neither the name of the University nor of the Laboratory may be used 18 * to endorse or promote products derived from this software without 19 * specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 *
| 1/* 2 * Copyright (c) 1994, 1995, 1996 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the Computer Systems 16 * Engineering Group at Lawrence Berkeley Laboratory. 17 * 4. Neither the name of the University nor of the Laboratory may be used 18 * to endorse or promote products derived from this software without 19 * specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 *
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33 * $FreeBSD: head/contrib/libpcap/pcap-int.h 146771 2005-05-29 18:09:04Z sam $ 34 * @(#) $Header: /tcpdump/master/libpcap/pcap-int.h,v 1.68 2004/12/18 08:52:10 guy Exp $ (LBL)
| 33 * $FreeBSD: head/contrib/libpcap/pcap-int.h 147897 2005-07-11 03:43:25Z sam $ 34 * @(#) $Header: /tcpdump/master/libpcap/pcap-int.h,v 1.68.2.2 2005/05/03 18:54:36 guy Exp $ (LBL)
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35 */ 36 37#ifndef pcap_int_h 38#define pcap_int_h 39 40#ifdef __cplusplus 41extern "C" { 42#endif 43 44#include <pcap.h> 45 46#ifdef WIN32 47#include <packet32.h> 48#endif /* WIN32 */ 49 50#ifdef MSDOS 51#include <fcntl.h> 52#include <io.h> 53#endif 54 55/* 56 * Savefile 57 */ 58typedef enum { 59 NOT_SWAPPED, 60 SWAPPED, 61 MAYBE_SWAPPED 62} swapped_type_t; 63 64struct pcap_sf { 65 FILE *rfile; 66 int swapped; 67 int hdrsize; 68 swapped_type_t lengths_swapped; 69 int version_major; 70 int version_minor; 71 u_char *base; 72}; 73 74struct pcap_md { 75 struct pcap_stat stat; 76 /*XXX*/ 77 int use_bpf; /* using kernel filter */ 78 u_long TotPkts; /* can't oflow for 79 hrs on ether */ 79 u_long TotAccepted; /* count accepted by filter */ 80 u_long TotDrops; /* count of dropped packets */ 81 long TotMissed; /* missed by i/f during this run */ 82 long OrigMissed; /* missed by i/f before this run */ 83 char *device; /* device name */ 84#ifdef linux 85 int sock_packet; /* using Linux 2.0 compatible interface */ 86 int timeout; /* timeout specified to pcap_open_live */ 87 int clear_promisc; /* must clear promiscuous mode when we close */ 88 int cooked; /* using SOCK_DGRAM rather than SOCK_RAW */ 89 int ifindex; /* interface index of device we're bound to */ 90 int lo_ifindex; /* interface index of the loopback device */ 91 struct pcap *next; /* list of open promiscuous sock_packet pcaps */ 92#endif 93 94#ifdef HAVE_DAG_API 95 void *dag_mem_base; /* DAG card memory base address */ 96 u_int dag_mem_bottom; /* DAG card current memory bottom pointer */ 97 u_int dag_mem_top; /* DAG card current memory top pointer */ 98 int dag_fcs_bits; /* Number of checksum bits from link layer */ 99 int dag_offset_flags; /* Flags to pass to dag_offset(). */ 100#endif 101}; 102
| 35 */ 36 37#ifndef pcap_int_h 38#define pcap_int_h 39 40#ifdef __cplusplus 41extern "C" { 42#endif 43 44#include <pcap.h> 45 46#ifdef WIN32 47#include <packet32.h> 48#endif /* WIN32 */ 49 50#ifdef MSDOS 51#include <fcntl.h> 52#include <io.h> 53#endif 54 55/* 56 * Savefile 57 */ 58typedef enum { 59 NOT_SWAPPED, 60 SWAPPED, 61 MAYBE_SWAPPED 62} swapped_type_t; 63 64struct pcap_sf { 65 FILE *rfile; 66 int swapped; 67 int hdrsize; 68 swapped_type_t lengths_swapped; 69 int version_major; 70 int version_minor; 71 u_char *base; 72}; 73 74struct pcap_md { 75 struct pcap_stat stat; 76 /*XXX*/ 77 int use_bpf; /* using kernel filter */ 78 u_long TotPkts; /* can't oflow for 79 hrs on ether */ 79 u_long TotAccepted; /* count accepted by filter */ 80 u_long TotDrops; /* count of dropped packets */ 81 long TotMissed; /* missed by i/f during this run */ 82 long OrigMissed; /* missed by i/f before this run */ 83 char *device; /* device name */ 84#ifdef linux 85 int sock_packet; /* using Linux 2.0 compatible interface */ 86 int timeout; /* timeout specified to pcap_open_live */ 87 int clear_promisc; /* must clear promiscuous mode when we close */ 88 int cooked; /* using SOCK_DGRAM rather than SOCK_RAW */ 89 int ifindex; /* interface index of device we're bound to */ 90 int lo_ifindex; /* interface index of the loopback device */ 91 struct pcap *next; /* list of open promiscuous sock_packet pcaps */ 92#endif 93 94#ifdef HAVE_DAG_API 95 void *dag_mem_base; /* DAG card memory base address */ 96 u_int dag_mem_bottom; /* DAG card current memory bottom pointer */ 97 u_int dag_mem_top; /* DAG card current memory top pointer */ 98 int dag_fcs_bits; /* Number of checksum bits from link layer */ 99 int dag_offset_flags; /* Flags to pass to dag_offset(). */ 100#endif 101}; 102
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| 103/* 104 * 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 105 * Tru64 UNIX, and NetBSD pad to make everything line up on a nice boundary. 106 */ 107#if defined(ultrix) || defined(__osf__) || (defined(__NetBSD__) && __NetBSD_Version__ > 106000000) 108#define PCAP_FDDIPAD 3 109#endif 110
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103struct pcap { 104#ifdef WIN32 105 ADAPTER *adapter; 106 LPPACKET Packet; 107 int timeout; 108 int nonblock; 109#else 110 int fd; 111 int selectable_fd; 112 int send_fd; 113#endif /* WIN32 */ 114 int snapshot; 115 int linktype; 116 int tzoff; /* timezone offset */ 117 int offset; /* offset for proper alignment */ 118 119 int break_loop; /* flag set to force break from packet-reading loop */ 120 121#ifdef PCAP_FDDIPAD 122 int fddipad; 123#endif 124 125#ifdef MSDOS 126 int inter_packet_wait; /* offline: wait between packets */ 127 void (*wait_proc)(void); /* call proc while waiting */ 128#endif 129 130 struct pcap_sf sf; 131 struct pcap_md md; 132 133 /* 134 * Read buffer. 135 */ 136 int bufsize; 137 u_char *buffer; 138 u_char *bp; 139 int cc; 140 141 /* 142 * Place holder for pcap_next(). 143 */ 144 u_char *pkt; 145
| 111struct pcap { 112#ifdef WIN32 113 ADAPTER *adapter; 114 LPPACKET Packet; 115 int timeout; 116 int nonblock; 117#else 118 int fd; 119 int selectable_fd; 120 int send_fd; 121#endif /* WIN32 */ 122 int snapshot; 123 int linktype; 124 int tzoff; /* timezone offset */ 125 int offset; /* offset for proper alignment */ 126 127 int break_loop; /* flag set to force break from packet-reading loop */ 128 129#ifdef PCAP_FDDIPAD 130 int fddipad; 131#endif 132 133#ifdef MSDOS 134 int inter_packet_wait; /* offline: wait between packets */ 135 void (*wait_proc)(void); /* call proc while waiting */ 136#endif 137 138 struct pcap_sf sf; 139 struct pcap_md md; 140 141 /* 142 * Read buffer. 143 */ 144 int bufsize; 145 u_char *buffer; 146 u_char *bp; 147 int cc; 148 149 /* 150 * Place holder for pcap_next(). 151 */ 152 u_char *pkt; 153
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| 154 /* We're accepting only packets in this direction/these directions. */ 155 direction_t direction; 156
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146 /* 147 * Methods. 148 */ 149 int (*read_op)(pcap_t *, int cnt, pcap_handler, u_char *); 150 int (*inject_op)(pcap_t *, const void *, size_t); 151 int (*setfilter_op)(pcap_t *, struct bpf_program *);
| 157 /* 158 * Methods. 159 */ 160 int (*read_op)(pcap_t *, int cnt, pcap_handler, u_char *); 161 int (*inject_op)(pcap_t *, const void *, size_t); 162 int (*setfilter_op)(pcap_t *, struct bpf_program *);
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| 163 int (*setdirection_op)(pcap_t *, direction_t);
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152 int (*set_datalink_op)(pcap_t *, int); 153 int (*getnonblock_op)(pcap_t *, char *); 154 int (*setnonblock_op)(pcap_t *, int, char *); 155 int (*stats_op)(pcap_t *, struct pcap_stat *); 156 void (*close_op)(pcap_t *); 157 158 /* 159 * Placeholder for filter code if bpf not in kernel. 160 */ 161 struct bpf_program fcode; 162 163 char errbuf[PCAP_ERRBUF_SIZE + 1]; 164 int dlt_count; 165 u_int *dlt_list; 166 167 struct pcap_pkthdr pcap_header; /* This is needed for the pcap_next_ex() to work */ 168}; 169 170/* 171 * This is a timeval as stored in disk in a dumpfile. 172 * It has to use the same types everywhere, independent of the actual 173 * `struct timeval' 174 */ 175 176struct pcap_timeval { 177 bpf_int32 tv_sec; /* seconds */ 178 bpf_int32 tv_usec; /* microseconds */ 179}; 180 181/* 182 * How a `pcap_pkthdr' is actually stored in the dumpfile. 183 * 184 * Do not change the format of this structure, in any way (this includes 185 * changes that only affect the length of fields in this structure), 186 * and do not make the time stamp anything other than seconds and 187 * microseconds (e.g., seconds and nanoseconds). Instead: 188 * 189 * introduce a new structure for the new format; 190 * 191 * send mail to "tcpdump-workers@tcpdump.org", requesting a new 192 * magic number for your new capture file format, and, when 193 * you get the new magic number, put it in "savefile.c"; 194 * 195 * use that magic number for save files with the changed record 196 * header; 197 * 198 * make the code in "savefile.c" capable of reading files with 199 * the old record header as well as files with the new record header 200 * (using the magic number to determine the header format). 201 * 202 * Then supply the changes to "patches@tcpdump.org", so that future 203 * versions of libpcap and programs that use it (such as tcpdump) will 204 * be able to read your new capture file format. 205 */ 206 207struct pcap_sf_pkthdr { 208 struct pcap_timeval ts; /* time stamp */ 209 bpf_u_int32 caplen; /* length of portion present */ 210 bpf_u_int32 len; /* length this packet (off wire) */ 211}; 212 213/* 214 * How a `pcap_pkthdr' is actually stored in dumpfiles written 215 * by some patched versions of libpcap (e.g. the ones in Red 216 * Hat Linux 6.1 and 6.2). 217 * 218 * Do not change the format of this structure, in any way (this includes 219 * changes that only affect the length of fields in this structure). 220 * Instead, introduce a new structure, as per the above. 221 */ 222 223struct pcap_sf_patched_pkthdr { 224 struct pcap_timeval ts; /* time stamp */ 225 bpf_u_int32 caplen; /* length of portion present */ 226 bpf_u_int32 len; /* length this packet (off wire) */ 227 int index; 228 unsigned short protocol; 229 unsigned char pkt_type; 230}; 231 232int yylex(void); 233 234#ifndef min 235#define min(a, b) ((a) > (b) ? (b) : (a)) 236#endif 237 238/* XXX should these be in pcap.h? */ 239int pcap_offline_read(pcap_t *, int, pcap_handler, u_char *); 240int pcap_read(pcap_t *, int cnt, pcap_handler, u_char *); 241
| 164 int (*set_datalink_op)(pcap_t *, int); 165 int (*getnonblock_op)(pcap_t *, char *); 166 int (*setnonblock_op)(pcap_t *, int, char *); 167 int (*stats_op)(pcap_t *, struct pcap_stat *); 168 void (*close_op)(pcap_t *); 169 170 /* 171 * Placeholder for filter code if bpf not in kernel. 172 */ 173 struct bpf_program fcode; 174 175 char errbuf[PCAP_ERRBUF_SIZE + 1]; 176 int dlt_count; 177 u_int *dlt_list; 178 179 struct pcap_pkthdr pcap_header; /* This is needed for the pcap_next_ex() to work */ 180}; 181 182/* 183 * This is a timeval as stored in disk in a dumpfile. 184 * It has to use the same types everywhere, independent of the actual 185 * `struct timeval' 186 */ 187 188struct pcap_timeval { 189 bpf_int32 tv_sec; /* seconds */ 190 bpf_int32 tv_usec; /* microseconds */ 191}; 192 193/* 194 * How a `pcap_pkthdr' is actually stored in the dumpfile. 195 * 196 * Do not change the format of this structure, in any way (this includes 197 * changes that only affect the length of fields in this structure), 198 * and do not make the time stamp anything other than seconds and 199 * microseconds (e.g., seconds and nanoseconds). Instead: 200 * 201 * introduce a new structure for the new format; 202 * 203 * send mail to "tcpdump-workers@tcpdump.org", requesting a new 204 * magic number for your new capture file format, and, when 205 * you get the new magic number, put it in "savefile.c"; 206 * 207 * use that magic number for save files with the changed record 208 * header; 209 * 210 * make the code in "savefile.c" capable of reading files with 211 * the old record header as well as files with the new record header 212 * (using the magic number to determine the header format). 213 * 214 * Then supply the changes to "patches@tcpdump.org", so that future 215 * versions of libpcap and programs that use it (such as tcpdump) will 216 * be able to read your new capture file format. 217 */ 218 219struct pcap_sf_pkthdr { 220 struct pcap_timeval ts; /* time stamp */ 221 bpf_u_int32 caplen; /* length of portion present */ 222 bpf_u_int32 len; /* length this packet (off wire) */ 223}; 224 225/* 226 * How a `pcap_pkthdr' is actually stored in dumpfiles written 227 * by some patched versions of libpcap (e.g. the ones in Red 228 * Hat Linux 6.1 and 6.2). 229 * 230 * Do not change the format of this structure, in any way (this includes 231 * changes that only affect the length of fields in this structure). 232 * Instead, introduce a new structure, as per the above. 233 */ 234 235struct pcap_sf_patched_pkthdr { 236 struct pcap_timeval ts; /* time stamp */ 237 bpf_u_int32 caplen; /* length of portion present */ 238 bpf_u_int32 len; /* length this packet (off wire) */ 239 int index; 240 unsigned short protocol; 241 unsigned char pkt_type; 242}; 243 244int yylex(void); 245 246#ifndef min 247#define min(a, b) ((a) > (b) ? (b) : (a)) 248#endif 249 250/* XXX should these be in pcap.h? */ 251int pcap_offline_read(pcap_t *, int, pcap_handler, u_char *); 252int pcap_read(pcap_t *, int cnt, pcap_handler, u_char *); 253
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242 243/* 244 * 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 245 * Tru64 UNIX, and NetBSD pad to make everything line up on a nice boundary. 246 */ 247#if defined(ultrix) || defined(__osf__) || defined(__NetBSD__) 248#define PCAP_FDDIPAD 3
| 254#ifndef HAVE_STRLCPY 255#define strlcpy(x, y, z) \ 256 (strncpy((x), (y), (z)), \ 257 ((z) <= 0 ? 0 : ((x)[(z) - 1] = '\0')), \ 258 strlen((y)))
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249#endif 250 251#include <stdarg.h> 252 253/* 254 * Routines that most pcap implementations can use for non-blocking mode. 255 */ 256#if !defined(WIN32) && !defined(MSDOS) 257int pcap_getnonblock_fd(pcap_t *, char *); 258int pcap_setnonblock_fd(pcap_t *p, int, char *); 259#endif 260 261void pcap_close_common(pcap_t *); 262 263/* 264 * Internal interfaces for "pcap_findalldevs()". 265 * 266 * "pcap_platform_finddevs()" is a platform-dependent routine to 267 * add devices not found by the "standard" mechanisms (SIOCGIFCONF, 268 * "getifaddrs()", etc.. 269 * 270 * "pcap_add_if()" adds an interface to the list of interfaces. 271 */ 272int pcap_platform_finddevs(pcap_if_t **, char *); 273int add_addr_to_iflist(pcap_if_t **, const char *, u_int, struct sockaddr *, 274 size_t, struct sockaddr *, size_t, struct sockaddr *, size_t, 275 struct sockaddr *, size_t, char *); 276int pcap_add_if(pcap_if_t **, const char *, u_int, const char *, char *); 277struct sockaddr *dup_sockaddr(struct sockaddr *, size_t); 278int add_or_find_if(pcap_if_t **, pcap_if_t **, const char *, u_int, 279 const char *, char *); 280 281#ifdef WIN32 282char *pcap_win32strerror(void); 283#endif 284 285int install_bpf_program(pcap_t *, struct bpf_program *); 286 287int pcap_strcasecmp(const char *, const char *); 288 289#ifdef __cplusplus 290} 291#endif 292 293#endif
| 259#endif 260 261#include <stdarg.h> 262 263/* 264 * Routines that most pcap implementations can use for non-blocking mode. 265 */ 266#if !defined(WIN32) && !defined(MSDOS) 267int pcap_getnonblock_fd(pcap_t *, char *); 268int pcap_setnonblock_fd(pcap_t *p, int, char *); 269#endif 270 271void pcap_close_common(pcap_t *); 272 273/* 274 * Internal interfaces for "pcap_findalldevs()". 275 * 276 * "pcap_platform_finddevs()" is a platform-dependent routine to 277 * add devices not found by the "standard" mechanisms (SIOCGIFCONF, 278 * "getifaddrs()", etc.. 279 * 280 * "pcap_add_if()" adds an interface to the list of interfaces. 281 */ 282int pcap_platform_finddevs(pcap_if_t **, char *); 283int add_addr_to_iflist(pcap_if_t **, const char *, u_int, struct sockaddr *, 284 size_t, struct sockaddr *, size_t, struct sockaddr *, size_t, 285 struct sockaddr *, size_t, char *); 286int pcap_add_if(pcap_if_t **, const char *, u_int, const char *, char *); 287struct sockaddr *dup_sockaddr(struct sockaddr *, size_t); 288int add_or_find_if(pcap_if_t **, pcap_if_t **, const char *, u_int, 289 const char *, char *); 290 291#ifdef WIN32 292char *pcap_win32strerror(void); 293#endif 294 295int install_bpf_program(pcap_t *, struct bpf_program *); 296 297int pcap_strcasecmp(const char *, const char *); 298 299#ifdef __cplusplus 300} 301#endif 302 303#endif
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