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