The Tcpdump Group git mirrors - tcpdump/blob - interface.h

   1 /*
   2  * Copyright (c) 1988-2002
   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: (1) source code distributions
   7  * retain the above copyright notice and this paragraph in its entirety, (2)
   8  * distributions including binary code include the above copyright notice and
   9  * this paragraph in its entirety in the documentation or other materials
  10  * provided with the distribution, and (3) all advertising materials mentioning
  11  * features or use of this software display the following acknowledgement:
  12  * ``This product includes software developed by the University of California,
  13  * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
  14  * the University nor the names of its contributors may be used to endorse
  15  * or promote products derived from this software without specific prior
  16  * written permission.
  17  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
  18  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  20  *
  21  * @(#) $Header: /tcpdump/master/tcpdump/interface.h,v 1.285 2008-08-16 11:36:20 hannes Exp $ (LBL)
  22  */
  23
  24 #ifndef tcpdump_interface_h
  25 #define tcpdump_interface_h
  26
  27 #ifdef HAVE_OS_PROTO_H
  28 #include "os-proto.h"
  29 #endif
  30
  31 /* snprintf et al */
  32
  33 #include <stdarg.h>
  34
  35 #if HAVE_STDINT_H
  36 #include <stdint.h>
  37 #endif
  38
  39 #if !defined(HAVE_SNPRINTF)
  40 int snprintf(char *, size_t, const char *, ...)
  41 #ifdef __ATTRIBUTE___FORMAT_OK
  42      __attribute__((format(printf, 3, 4)))
  43 #endif /* __ATTRIBUTE___FORMAT_OK */
  44      ;
  45 #endif /* !defined(HAVE_SNPRINTF) */
  46
  47 #if !defined(HAVE_VSNPRINTF)
  48 int vsnprintf(char *, size_t, const char *, va_list)
  49 #ifdef __ATTRIBUTE___FORMAT_OK
  50      __attribute__((format(printf, 3, 0)))
  51 #endif /* __ATTRIBUTE___FORMAT_OK */
  52      ;
  53 #endif /* !defined(HAVE_VSNPRINTF) */
  54
  55 #ifndef HAVE_STRLCAT
  56 extern size_t strlcat(char *, const char *, size_t);
  57 #endif
  58 #ifndef HAVE_STRLCPY
  59 extern size_t strlcpy(char *, const char *, size_t);
  60 #endif
  61
  62 #ifndef HAVE_STRDUP
  63 extern char *strdup(const char *);
  64 #endif
  65
  66 #ifndef HAVE_STRSEP
  67 extern char *strsep(char **, const char *);
  68 #endif
  69
  70 #define PT_VAT          1       /* Visual Audio Tool */
  71 #define PT_WB           2       /* distributed White Board */
  72 #define PT_RPC          3       /* Remote Procedure Call */
  73 #define PT_RTP          4       /* Real-Time Applications protocol */
  74 #define PT_RTCP         5       /* Real-Time Applications control protocol */
  75 #define PT_SNMP         6       /* Simple Network Management Protocol */
  76 #define PT_CNFP         7       /* Cisco NetFlow protocol */
  77 #define PT_TFTP         8       /* trivial file transfer protocol */
  78 #define PT_AODV         9       /* Ad-hoc On-demand Distance Vector Protocol */
  79 #define PT_CARP         10      /* Common Address Redundancy Protocol */
  80 #define PT_RADIUS       11      /* RADIUS authentication Protocol */
  81 #define PT_ZMTP1        12      /* ZeroMQ Message Transport Protocol 1.0 */
  82 #define PT_VXLAN        13      /* Virtual eXtensible Local Area Network */
  83 #define PT_PGM          14      /* [UDP-encapsulated] Pragmatic General Multicast */
  84 #define PT_PGM_ZMTP1    15      /* ZMTP/1.0 inside PGM (native or UDP-encapsulated) */
  85 #define PT_LMP          16      /* Link Management Protocol */
  86
  87 #ifndef min
  88 #define min(a,b) ((a)>(b)?(b):(a))
  89 #endif
  90 #ifndef max
  91 #define max(a,b) ((b)>(a)?(b):(a))
  92 #endif
  93
  94 #define ESRC(ep) ((ep)->ether_shost)
  95 #define EDST(ep) ((ep)->ether_dhost)
  96
  97 #ifndef NTOHL
  98 #define NTOHL(x)        (x) = ntohl(x)
  99 #define NTOHS(x)        (x) = ntohs(x)
 100 #define HTONL(x)        (x) = htonl(x)
 101 #define HTONS(x)        (x) = htons(x)
 102 #endif
 103 #endif
 104
 105 #ifndef MIN
 106 #define MIN(a,b) ((a)<(b)?(a):(b))
 107 #endif
 108
 109 extern char *program_name;      /* used to generate self-identifying messages */
 110
 111 extern int32_t thiszone;        /* seconds offset from gmt to local time */
 112
 113 /*
 114  * True if  "l" bytes of "var" were captured.
 115  *
 116  * The "snapend - (l) <= snapend" checks to make sure "l" isn't so large
 117  * that "snapend - (l)" underflows.
 118  *
 119  * The check is for <= rather than < because "l" might be 0.
 120  */
 121 #define TTEST2(var, l) (snapend - (l) <= snapend && \
 122                         (const u_char *)&(var) <= snapend - (l))
 123
 124 /* True if "var" was captured */
 125 #define TTEST(var) TTEST2(var, sizeof(var))
 126
 127 /* Bail if "l" bytes of "var" were not captured */
 128 #define TCHECK2(var, l) if (!TTEST2(var, l)) goto trunc
 129
 130 /* Bail if "var" was not captured */
 131 #define TCHECK(var) TCHECK2(var, sizeof(var))
 132
 133 extern void ts_print(const struct timeval *);
 134 extern void relts_print(int);
 135
 136 extern int fn_print(const u_char *, const u_char *);
 137 extern int fn_printn(const u_char *, u_int, const u_char *);
 138 extern int fn_printzp(const u_char *, u_int, const u_char *);
 139 extern int mask2plen(u_int32_t);
 140 extern const char *tok2strary_internal(const char **, int, const char *, int);
 141 #define tok2strary(a,f,i) tok2strary_internal(a, sizeof(a)/sizeof(a[0]),f,i)
 142
 143 extern const char *dnaddr_string(u_short);
 144
 145 extern void error(const char *, ...)
 146      __attribute__((noreturn))
 147 #ifdef __ATTRIBUTE___FORMAT_OK
 148      __attribute__((format (printf, 1, 2)))
 149 #endif /* __ATTRIBUTE___FORMAT_OK */
 150      ;
 151 extern void warning(const char *, ...)
 152 #ifdef __ATTRIBUTE___FORMAT_OK
 153      __attribute__((format (printf, 1, 2)))
 154 #endif /* __ATTRIBUTE___FORMAT_OK */
 155      ;
 156
 157 extern char *read_infile(char *);
 158 extern char *copy_argv(char **);
 159
 160 extern void safeputchar(int);
 161 extern void safeputs(const char *, int);
 162
 163 extern const char *isonsap_string(const u_char *, register u_int);
 164 extern const char *protoid_string(const u_char *);
 165 extern const char *ipxsap_string(u_short);
 166 extern const char *dnname_string(u_short);
 167 extern const char *dnnum_string(u_short);
 168
 169 /* checksum routines */
 170 extern void init_checksum(void);
 171 extern u_int16_t verify_crc10_cksum(u_int16_t, const u_char *, int);
 172 extern u_int16_t create_osi_cksum(const u_int8_t *, int, int);
 173
 174 /* The printer routines. */
 175
 176 #include <pcap.h>
 177
 178 extern void ascii_print(const u_char *, u_int);
 179 extern void hex_and_ascii_print_with_offset(const char *, const u_char *,
 180         u_int, u_int);
 181 extern void hex_and_ascii_print(const char *, const u_char *, u_int);
 182 extern void telnet_print(const u_char *, u_int);
 183 extern int llc_print(const u_char *, u_int, u_int, const u_char *,
 184         const u_char *, u_short *);
 185 extern int snap_print(const u_char *, u_int, u_int, u_int);
 186 extern void aarp_print(const u_char *, u_int);
 187 extern void aodv_print(const u_char *, u_int, int);
 188 extern void atalk_print(const u_char *, u_int);
 189 extern void atm_print(u_int, u_int, u_int, const u_char *, u_int, u_int);
 190 extern u_int atm_if_print(const struct pcap_pkthdr *, const u_char *);
 191 extern u_int sunatm_if_print(const struct pcap_pkthdr *, const u_char *);
 192 extern int oam_print(const u_char *, u_int, u_int);
 193 extern void bootp_print(const u_char *, u_int);
 194 extern void bgp_print(const u_char *, int);
 195 extern void beep_print(const u_char *, u_int);
 196 extern void cnfp_print(const u_char *, const u_char *);
 197 extern void decnet_print(const u_char *, u_int, u_int);
 198 extern void default_print(const u_char *, u_int);
 199 extern void dvmrp_print(const u_char *, u_int);
 200 extern void egp_print(const u_char *, u_int);
 201 extern u_int enc_if_print(const struct pcap_pkthdr *, const u_char *);
 202 extern u_int pflog_if_print(const struct pcap_pkthdr *, const u_char *);
 203 extern u_int arcnet_if_print(const struct pcap_pkthdr *, const u_char *);
 204 extern u_int arcnet_linux_if_print(const struct pcap_pkthdr *, const u_char *);
 205 extern u_int token_print(const u_char *, u_int, u_int);
 206 extern u_int token_if_print(const struct pcap_pkthdr *, const u_char *);
 207 extern void fddi_print(const u_char *, u_int, u_int);
 208 extern u_int fddi_if_print(const struct pcap_pkthdr *, const u_char *);
 209 extern u_int fr_if_print(const struct pcap_pkthdr *, const u_char *);
 210 extern u_int mfr_if_print(const struct pcap_pkthdr *, const u_char *);
 211 extern u_int fr_print(register const u_char *, u_int);
 212 extern u_int mfr_print(register const u_char *, u_int);
 213 extern char *q922_string(const u_char *);
 214 extern u_int ieee802_11_if_print(const struct pcap_pkthdr *, const u_char *);
 215 extern u_int ieee802_11_radio_if_print(const struct pcap_pkthdr *,
 216         const u_char *);
 217 extern u_int ap1394_if_print(const struct pcap_pkthdr *, const u_char *);
 218 extern u_int ieee802_11_radio_avs_if_print(const struct pcap_pkthdr *,
 219         const u_char *);
 220 extern void gre_print(const u_char *, u_int);
 221 extern void icmp_print(const u_char *, u_int, const u_char *, int);
 222 extern void igmp_print(const u_char *, u_int);
 223 extern void igrp_print(const u_char *, u_int, const u_char *);
 224 extern void ipN_print(const u_char *, u_int);
 225 extern u_int ipfc_if_print(const struct pcap_pkthdr *, const u_char *);
 226 extern void ipx_print(const u_char *, u_int);
 227 extern void isoclns_print(const u_char *, u_int, u_int);
 228 extern void krb_print(const u_char *);
 229 extern u_int llap_print(const u_char *, u_int);
 230 extern u_int ltalk_if_print(const struct pcap_pkthdr *, const u_char *);
 231 extern void msdp_print(const unsigned char *, u_int);
 232 extern void nfsreply_print(const u_char *, u_int, const u_char *);
 233 extern void nfsreply_print_noaddr(const u_char *, u_int, const u_char *);
 234 extern void nfsreq_print(const u_char *, u_int, const u_char *);
 235 extern void nfsreq_print_noaddr(const u_char *, u_int, const u_char *);
 236 extern void ns_print(const u_char *, u_int, int);
 237 extern const u_char * ns_nprint (register const u_char *, register const u_char *);
 238 extern void ntp_print(const u_char *, u_int);
 239 extern u_int null_if_print(const struct pcap_pkthdr *, const u_char *);
 240 extern void openflow_print(const u_char *, u_int);
 241 extern void ospf_print(const u_char *, u_int, const u_char *);
 242 extern void olsr_print (const u_char *, u_int, int);
 243 extern void pimv1_print(const u_char *, u_int);
 244 extern void cisco_autorp_print(const u_char *, u_int);
 245 extern void rsvp_print(const u_char *, u_int);
 246 extern void ldp_print(const u_char *, u_int);
 247 extern void lldp_print(const u_char *, u_int);
 248 extern void rpki_rtr_print(const u_char *, u_int);
 249 extern void lmp_print(const u_char *, u_int);
 250 extern void lspping_print(const u_char *, u_int);
 251 extern void lwapp_control_print(const u_char *, u_int, int);
 252 extern void lwapp_data_print(const u_char *, u_int);
 253 extern void eigrp_print(const u_char *, u_int);
 254 extern void mobile_print(const u_char *, u_int);
 255 extern void pim_print(const u_char *, u_int, u_int);
 256 extern u_int pppoe_print(const u_char *, u_int);
 257 extern u_int ppp_print(register const u_char *, u_int);
 258 extern u_int ppp_if_print(const struct pcap_pkthdr *, const u_char *);
 259 extern u_int ppp_hdlc_if_print(const struct pcap_pkthdr *, const u_char *);
 260 extern u_int ppp_bsdos_if_print(const struct pcap_pkthdr *, const u_char *);
 261 extern u_int pppoe_if_print(const struct pcap_pkthdr *, const u_char *);
 262 extern u_int prism_if_print(const struct pcap_pkthdr *, const u_char *);
 263 extern void q933_print(const u_char *, u_int);
 264 extern int vjc_print(register const char *, u_short);
 265 extern void vqp_print(register const u_char *, register u_int);
 266 extern u_int raw_if_print(const struct pcap_pkthdr *, const u_char *);
 267 extern void rip_print(const u_char *, u_int);
 268 extern u_int sl_if_print(const struct pcap_pkthdr *, const u_char *);
 269 extern void lane_print(const u_char *, u_int, u_int);
 270 extern u_int lane_if_print(const struct pcap_pkthdr *, const u_char *);
 271 extern u_int cip_if_print(const struct pcap_pkthdr *, const u_char *);
 272 extern u_int sl_bsdos_if_print(const struct pcap_pkthdr *, const u_char *);
 273 extern u_int chdlc_if_print(const struct pcap_pkthdr *, const u_char *);
 274 extern u_int chdlc_print(register const u_char *, u_int);
 275 extern u_int juniper_atm1_print(const struct pcap_pkthdr *, const u_char *);
 276 extern u_int juniper_atm2_print(const struct pcap_pkthdr *, const u_char *);
 277 extern u_int juniper_mfr_print(const struct pcap_pkthdr *, register const u_char *);
 278 extern u_int juniper_mlfr_print(const struct pcap_pkthdr *, const u_char *);
 279 extern u_int juniper_mlppp_print(const struct pcap_pkthdr *, const u_char *);
 280 extern u_int juniper_pppoe_print(const struct pcap_pkthdr *, const u_char *);
 281 extern u_int juniper_pppoe_atm_print(const struct pcap_pkthdr *, const u_char *);
 282 extern u_int juniper_ggsn_print(const struct pcap_pkthdr *, const u_char *);
 283 extern u_int juniper_es_print(const struct pcap_pkthdr *, const u_char *);
 284 extern u_int juniper_monitor_print(const struct pcap_pkthdr *, const u_char *);
 285 extern u_int juniper_services_print(const struct pcap_pkthdr *, const u_char *);
 286 extern u_int juniper_ether_print(const struct pcap_pkthdr *, const u_char *);
 287 extern u_int juniper_ppp_print(const struct pcap_pkthdr *, const u_char *);
 288 extern u_int juniper_frelay_print(const struct pcap_pkthdr *, const u_char *);
 289 extern u_int juniper_chdlc_print(const struct pcap_pkthdr *, const u_char *);
 290 extern u_int sll_if_print(const struct pcap_pkthdr *, const u_char *);
 291 extern void snmp_print(const u_char *, u_int);
 292 extern void sunrpcrequest_print(const u_char *, u_int, const u_char *);
 293 extern u_int symantec_if_print(const struct pcap_pkthdr *, const u_char *);
 294 extern void tcp_print(const u_char *, u_int, const u_char *, int);
 295 extern void tftp_print(const u_char *, u_int);
 296 extern void timed_print(const u_char *);
 297 extern void udld_print(const u_char *, u_int);
 298 extern void udp_print(const u_char *, u_int, const u_char *, int);
 299 extern void vtp_print(const u_char *, u_int);
 300 extern void wb_print(const void *, u_int);
 301 extern int ah_print(register const u_char *);
 302 extern int ipcomp_print(register const u_char *, int *);
 303 extern void rx_print(register const u_char *, int, int, int, u_char *);
 304 extern void netbeui_print(u_short, const u_char *, int);
 305 extern void ipx_netbios_print(const u_char *, u_int);
 306 extern void nbt_tcp_print(const u_char *, int);
 307 extern void nbt_udp137_print(const u_char *, int);
 308 extern void nbt_udp138_print(const u_char *, int);
 309 extern void smb_tcp_print(const u_char *, int);
 310 extern char *smb_errstr(int, int);
 311 extern const char *nt_errstr(u_int32_t);
 312 extern void print_data(const unsigned char *, int);
 313 extern void l2tp_print(const u_char *, u_int);
 314 extern void vrrp_print(const u_char *, u_int, int);
 315 extern void carp_print(const u_char *, u_int, int);
 316 extern void slow_print(const u_char *, u_int);
 317 extern void sflow_print(const u_char *, u_int);
 318 extern void mpcp_print(const u_char *, u_int);
 319 extern void cfm_print(const u_char *, u_int);
 320 extern void pgm_print(const u_char *, u_int, const u_char *);
 321 extern void cdp_print(const u_char *, u_int, u_int);
 322 extern void dtp_print(const u_char *, u_int);
 323 extern void stp_print(const u_char *, u_int);
 324 extern void radius_print(const u_char *, u_int);
 325 extern void lwres_print(const u_char *, u_int);
 326 extern void pptp_print(const u_char *);
 327 extern void dccp_print(const u_char *, const u_char *, u_int);
 328 extern void sctp_print(const u_char *, const u_char *, u_int);
 329 extern void forces_print(const u_char *, u_int);
 330 extern void mpls_print(const u_char *, u_int);
 331 extern void mpls_lsp_ping_print(const u_char *, u_int);
 332 extern void zephyr_print(const u_char *, int);
 333 extern void zmtp1_print(const u_char *, u_int);
 334 extern void zmtp1_print_datagram(const u_char *, u_int);
 335 extern void hsrp_print(const u_char *, u_int);
 336 extern void bfd_print(const u_char *, u_int, u_int);
 337 extern void sip_print(const u_char *, u_int);
 338 extern void syslog_print(const u_char *, u_int);
 339 extern int mptcp_print(const u_char *, u_int, u_char);
 340 extern u_int bt_if_print(const struct pcap_pkthdr *, const u_char *);
 341 extern u_int usb_linux_48_byte_print(const struct pcap_pkthdr *, const u_char *);
 342 extern u_int usb_linux_64_byte_print(const struct pcap_pkthdr *, const u_char *);
 343 extern void vxlan_print(const u_char *, u_int);
 344 extern void otv_print(const u_char *, u_int);
 345 extern void ahcp_print(const u_char *, u_int);
 346
 347
 348 #ifdef INET6
 349 extern void ip6_opt_print(const u_char *, int);
 350 extern int hbhopt_print(const u_char *);
 351 extern int dstopt_print(const u_char *);
 352 extern int frag6_print(const u_char *, const u_char *);
 353 extern int mobility_print(const u_char *, const u_char *);
 354 extern void ripng_print(const u_char *, unsigned int);
 355 extern int rt6_print(const u_char *, const u_char *);
 356 extern void ospf6_print(const u_char *, u_int);
 357 extern void dhcp6_print(const u_char *, u_int);
 358 extern void babel_print(const u_char *, u_int);
 359 extern int mask62plen(const u_char *);
 360 #endif /*INET6*/
 361
 362 struct cksum_vec {
 363         const u_int8_t  *ptr;
 364         int             len;
 365 };
 366 extern u_int16_t in_cksum(const struct cksum_vec *, int);
 367 extern u_int16_t in_cksum_shouldbe(u_int16_t, u_int16_t);
 368
 369 #ifndef HAVE_BPF_DUMP
 370 struct bpf_program;
 371
 372 extern void bpf_dump(const struct bpf_program *, int);
 373
 374 #endif
 375
 376 #include "netdissect.h"
 377
 378 /* forward compatibility */
 379
 380 #ifndef NETDISSECT_REWORKED
 381 extern netdissect_options *gndo;
 382
 383 #define bflag gndo->ndo_bflag
 384 #define eflag gndo->ndo_eflag
 385 #define fflag gndo->ndo_fflag
 386 #define jflag gndo->ndo_jflag
 387 #define Kflag gndo->ndo_Kflag
 388 #define nflag gndo->ndo_nflag
 389 #define Nflag gndo->ndo_Nflag
 390 #define Oflag gndo->ndo_Oflag
 391 #define pflag gndo->ndo_pflag
 392 #define qflag gndo->ndo_qflag
 393 #define Rflag gndo->ndo_Rflag
 394 #define sflag gndo->ndo_sflag
 395 #define Sflag gndo->ndo_Sflag
 396 #define tflag gndo->ndo_tflag
 397 #define Uflag gndo->ndo_Uflag
 398 #define uflag gndo->ndo_uflag
 399 #define vflag gndo->ndo_vflag
 400 #define xflag gndo->ndo_xflag
 401 #define Xflag gndo->ndo_Xflag
 402 #define Cflag gndo->ndo_Cflag
 403 #define Gflag gndo->ndo_Gflag
 404 #define Aflag gndo->ndo_Aflag
 405 #define Bflag gndo->ndo_Bflag
 406 #define Iflag gndo->ndo_Iflag
 407 #define suppress_default_print gndo->ndo_suppress_default_print
 408 #define packettype gndo->ndo_packettype
 409 #define sigsecret gndo->ndo_sigsecret
 410 #define Wflag gndo->ndo_Wflag
 411 #define WflagChars gndo->ndo_WflagChars
 412 #define Cflag_count gndo->ndo_Cflag_count
 413 #define Gflag_count gndo->ndo_Gflag_count
 414 #define Gflag_time gndo->ndo_Gflag_time
 415 #define Hflag gndo->ndo_Hflag
 416 #define snaplen     gndo->ndo_snaplen
 417 #define snapend     gndo->ndo_snapend
 418
 419 #endif