1/* 2 * Copyright (c) 1988-1997 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Copyright (c) 1998-2004 Michael Richardson <mcr@tcpdump.org> 6 * The TCPDUMP project 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that: (1) source code distributions 10 * retain the above copyright notice and this paragraph in its entirety, (2) 11 * distributions including binary code include the above copyright notice and 12 * this paragraph in its entirety in the documentation or other materials 13 * provided with the distribution, and (3) all advertising materials mentioning 14 * features or use of this software display the following acknowledgement: 15 * ``This product includes software developed by the University of California, 16 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of 17 * the University nor the names of its contributors may be used to endorse 18 * or promote products derived from this software without specific prior 19 * written permission. 20 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED 21 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF 22 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 23 * 24 * @(#) $Header: /tcpdump/master/tcpdump/netdissect.h,v 1.16.2.4 2006/02/08 01:40:09 hannes Exp $ (LBL) 25 */ 26 27#ifndef netdissect_h 28#define netdissect_h 29 30#ifdef HAVE_OS_PROTO_H 31#include "os-proto.h" 32#endif 33#include <sys/types.h> 34 35#ifndef HAVE___ATTRIBUTE__ 36#define __attribute__(x) 37#endif 38 39/* snprintf et al */ 40 41#include <stdarg.h> 42 43#if !defined(HAVE_SNPRINTF) 44int snprintf (char *str, size_t sz, const char *format, ...) 45 __attribute__ ((format (printf, 3, 4))); 46#endif 47 48#if !defined(HAVE_VSNPRINTF) 49int vsnprintf (char *str, size_t sz, const char *format, va_list ap) 50 __attribute__((format (printf, 3, 0))); 51#endif 52 53#ifndef HAVE_STRLCAT 54extern size_t strlcat (char *, const char *, size_t); 55#endif 56#ifndef HAVE_STRLCPY 57extern size_t strlcpy (char *, const char *, size_t); 58#endif 59 60#ifndef HAVE_STRDUP 61extern char *strdup (const char *str); 62#endif 63 64#ifndef HAVE_STRSEP 65extern char *strsep(char **, const char *); 66#endif 67 68struct tok { 69 int v; /* value */ 70 const char *s; /* string */ 71}; 72 73#define TOKBUFSIZE 128 74extern const char *tok2strbuf(const struct tok *, const char *, int, 75 char *buf, size_t bufsize); 76 77/* tok2str is deprecated */ 78extern const char *tok2str(const struct tok *, const char *, int); 79extern char *bittok2str(const struct tok *, const char *, int); 80 81 82typedef struct netdissect_options netdissect_options; 83 84struct netdissect_options { 85 int ndo_aflag; /* translate network and broadcast addresses */ 86 int ndo_eflag; /* print ethernet header */ 87 int ndo_fflag; /* don't translate "foreign" IP address */ 88 int ndo_nflag; /* leave addresses as numbers */ 89 int ndo_Nflag; /* remove domains from printed host names */ 90 int ndo_qflag; /* quick (shorter) output */ 91 int ndo_Rflag; /* print sequence # field in AH/ESP*/ 92 int ndo_sflag; /* use the libsmi to translate OIDs */ 93 int ndo_Sflag; /* print raw TCP sequence numbers */ 94 int ndo_tflag; /* print packet arrival time */ 95 int ndo_Uflag; /* "unbuffered" output of dump files */ 96 int ndo_uflag; /* Print undecoded NFS handles */ 97 int ndo_vflag; /* verbose */ 98 int ndo_xflag; /* print packet in hex */ 99 int ndo_Xflag; /* print packet in hex/ascii */ 100 int ndo_Aflag; /* print packet only in ascii observing TAB, 101 * LF, CR and SPACE as graphical chars 102 */ 103 int ndo_Oflag; /* run filter code optimizer */ 104 int ndo_dlt; /* if != -1, ask libpcap for the DLT it names*/ 105 int ndo_pflag; /* don't go promiscuous */ 106 107 int ndo_Cflag; /* rotate dump files after this many bytes */ 108 int ndo_Cflag_count; /* Keep track of which file number we're writing */ 109 int ndo_Wflag; /* recycle output files after this number of files */ 110 int ndo_WflagChars; 111 int ndo_suppress_default_print; /* don't use default_print() for unknown packet types */ 112 const char *ndo_dltname; 113 114 char *ndo_espsecret; 115 struct sa_list *ndo_sa_list_head; /* used by print-esp.c */ 116 struct sa_list *ndo_sa_default; 117 118 char *ndo_tcpmd5secret; /* TCP-MD5 secret key */ 119 120 struct esp_algorithm *ndo_espsecret_xform; /* cache of decoded */ 121 char *ndo_espsecret_key; 122 123 int ndo_packettype; /* as specified by -T */ 124 125 char *ndo_program_name; /*used to generate self-identifying messages */ 126 127 int32_t ndo_thiszone; /* seconds offset from gmt to local time */ 128 129 int ndo_snaplen; 130 131 /*global pointers to beginning and end of current packet (during printing) */ 132 const u_char *ndo_packetp; 133 const u_char *ndo_snapend; 134 135 /* bookkeeping for ^T output */ 136 int ndo_infodelay; 137 138 /* pointer to void function to output stuff */ 139 void (*ndo_default_print)(netdissect_options *, 140 register const u_char *bp, register u_int length); 141 void (*ndo_info)(netdissect_options *, int verbose); 142 143 int (*ndo_printf)(netdissect_options *, 144 const char *fmt, ...); 145 void (*ndo_error)(netdissect_options *, 146 const char *fmt, ...); 147 void (*ndo_warning)(netdissect_options *, 148 const char *fmt, ...); 149}; 150 151#define PT_VAT 1 /* Visual Audio Tool */ 152#define PT_WB 2 /* distributed White Board */ 153#define PT_RPC 3 /* Remote Procedure Call */ 154#define PT_RTP 4 /* Real-Time Applications protocol */ 155#define PT_RTCP 5 /* Real-Time Applications control protocol */ 156#define PT_SNMP 6 /* Simple Network Management Protocol */ 157#define PT_CNFP 7 /* Cisco NetFlow protocol */ 158 159#ifndef min 160#define min(a,b) ((a)>(b)?(b):(a)) 161#endif 162#ifndef max 163#define max(a,b) ((b)>(a)?(b):(a)) 164#endif 165 166#ifndef INET6 167/* 168 * The default snapshot length. This value allows most printers to print 169 * useful information while keeping the amount of unwanted data down. 170 * In particular, it allows for an ethernet header, tcp/ip header, and 171 * 14 bytes of data (assuming no ip options). 172 */ 173#define DEFAULT_SNAPLEN 68 174#else 175#define DEFAULT_SNAPLEN 96 176#endif 177 178#ifndef BIG_ENDIAN 179#define BIG_ENDIAN 4321 180#define LITTLE_ENDIAN 1234 181#endif 182 183#define ESRC(ep) ((ep)->ether_shost) 184#define EDST(ep) ((ep)->ether_dhost) 185 186#ifndef NTOHL 187#define NTOHL(x) (x) = ntohl(x) 188#define NTOHS(x) (x) = ntohs(x) 189#define HTONL(x) (x) = htonl(x) 190#define HTONS(x) (x) = htons(x) 191#endif 192 193/* 194 * True if "l" bytes of "var" were captured. 195 * 196 * The "ndo->ndo_snapend - (l) <= ndo->ndo_snapend" checks to make sure 197 * "l" isn't so large that "ndo->ndo_snapend - (l)" underflows. 198 * 199 * The check is for <= rather than < because "l" might be 0. 200 */ 201#define ND_TTEST2(var, l) (ndo->ndo_snapend - (l) <= ndo->ndo_snapend && \ 202 (const u_char *)&(var) <= ndo->ndo_snapend - (l)) 203 204/* True if "var" was captured */ 205#define ND_TTEST(var) ND_TTEST2(var, sizeof(var)) 206 207/* Bail if "l" bytes of "var" were not captured */ 208#define ND_TCHECK2(var, l) if (!ND_TTEST2(var, l)) goto trunc 209 210/* Bail if "var" was not captured */ 211#define ND_TCHECK(var) ND_TCHECK2(var, sizeof(var)) 212 213#define ND_PRINT(STUFF) (*ndo->ndo_printf)STUFF 214#define ND_DEFAULTPRINT(ap, length) (*ndo->ndo_default_print)(ndo, ap, length) 215 216#if 0 217extern void ts_print(netdissect_options *ipdo, 218 const struct timeval *); 219extern void relts_print(int); 220#endif 221 222extern int fn_print(const u_char *, const u_char *); 223extern int fn_printn(const u_char *, u_int, const u_char *); 224extern const char *tok2str(const struct tok *, const char *, int); 225 226extern void wrapup(int); 227 228#if 0 229extern char *read_infile(netdissect_options *, char *); 230extern char *copy_argv(netdissect_options *, char **); 231#endif 232 233extern void safeputchar(int); 234extern void safeputs(const char *, int); 235 236#if 0 237extern const char *isonsap_string(netdissect_options *, const u_char *); 238extern const char *protoid_string(netdissect_options *, const u_char *); 239extern const char *dnname_string(netdissect_options *, u_short); 240extern const char *dnnum_string(netdissect_options *, u_short); 241#endif 242 243/* The printer routines. */ 244 245#include <pcap.h> 246 247 248extern void eap_print(netdissect_options *,const u_char *, u_int); 249extern int esp_print(netdissect_options *, 250 register const u_char *bp, int len, register const u_char *bp2, 251 int *nhdr, int *padlen); 252extern void arp_print(netdissect_options *,const u_char *, u_int, u_int); 253extern void isakmp_print(netdissect_options *,const u_char *, 254 u_int, const u_char *); 255extern void isakmp_rfc3948_print(netdissect_options *,const u_char *, 256 u_int, const u_char *); 257extern void ip_print(netdissect_options *,const u_char *, u_int); 258extern void ip_print_inner(netdissect_options *ndo, 259 const u_char *bp, u_int length, u_int nh, 260 const u_char *bp2); 261 262/* stuff that has not yet been rototiled */ 263#if 0 264extern void ascii_print(netdissect_options *,u_int); 265extern void hex_and_ascii_print_with_offset(netdissect_options *,const char *, 266 u_int, u_int); 267extern void hex_and_ascii_print(netdissect_options *,const char *, u_int); 268extern void hex_print_with_offset(netdissect_options *,const char *, 269 u_int, u_int); 270extern void hex_print(netdissect_options *,const char *, u_int); 271extern void telnet_print(netdissect_options *,const u_char *, u_int); 272extern int ether_encap_print(netdissect_options *,u_short, const u_char *, 273 u_int, u_int, u_short *); 274extern int llc_print(netdissect_options *, 275 const u_char *, u_int, u_int, const u_char *, 276 const u_char *, u_short *); 277extern void aarp_print(netdissect_options *,const u_char *, u_int); 278extern void atalk_print(netdissect_options *,const u_char *, u_int); 279extern void atm_if_print(u_char *,const struct pcap_pkthdr *, const u_char *); 280extern void bootp_print(netdissect_options *,const u_char *, 281 u_int, u_short, u_short); 282extern void bgp_print(netdissect_options *,const u_char *, int); 283extern void bxxp_print(netdissect_options *,const u_char *, u_int); 284extern void chdlc_if_print(u_char *user, const struct pcap_pkthdr *h, 285 register const u_char *p); 286extern void chdlc_print(netdissect_options *ndo, 287 register const u_char *p, u_int length, u_int caplen); 288extern void cisco_autorp_print(netdissect_options *, 289 const u_char *, u_int); 290extern void cnfp_print(netdissect_options *,const u_char *cp, 291 u_int len, const u_char *bp); 292extern void decnet_print(netdissect_options *,const u_char *, 293 u_int, u_int); 294extern void default_print(netdissect_options *,const u_char *, u_int); 295extern void dvmrp_print(netdissect_options *,const u_char *, u_int); 296extern void egp_print(netdissect_options *,const u_char *, u_int, 297 const u_char *); 298 299extern void arcnet_if_print(u_char*,const struct pcap_pkthdr *,const u_char *); 300extern void ether_if_print(u_char *,const struct pcap_pkthdr *,const u_char *); 301extern void token_if_print(u_char *,const struct pcap_pkthdr *,const u_char *); 302extern void fddi_if_print(u_char *,const struct pcap_pkthdr *, const u_char *); 303 304extern void gre_print(netdissect_options *,const u_char *, u_int); 305extern void icmp_print(netdissect_options *,const u_char *, u_int, 306 const u_char *); 307extern void hsrp_print(netdissect_options *ndo, 308 register const u_char *bp, register u_int len); 309extern void ieee802_11_if_print(u_char *,const struct pcap_pkthdr *, const u_char *); 310extern void igmp_print(netdissect_options *, 311 register const u_char *, u_int); 312extern void igrp_print(netdissect_options *,const u_char *, u_int, 313 const u_char *); 314extern void ipN_print(netdissect_options *,const u_char *, u_int); 315extern void ipx_print(netdissect_options *,const u_char *, u_int); 316extern void isoclns_print(netdissect_options *,const u_char *, 317 u_int, u_int, const u_char *, const u_char *); 318extern void krb_print(netdissect_options *,const u_char *, u_int); 319extern void llap_print(netdissect_options *,const u_char *, u_int); 320extern const char *linkaddr_string(netdissect_options *ndo, 321 const u_char *ep, const unsigned int len); 322extern void ltalk_if_print(netdissect_options *ndo, 323 u_char *user, const struct pcap_pkthdr *h, 324 const u_char *p); 325extern void mpls_print(netdissect_options *ndo, 326 const u_char *bp, u_int length); 327extern void msdp_print(netdissect_options *ndo, 328 const unsigned char *sp, u_int length); 329extern void nfsreply_print(netdissect_options *,const u_char *, 330 u_int, const u_char *); 331extern void nfsreq_print(netdissect_options *,const u_char *, 332 u_int, const u_char *); 333extern void ns_print(netdissect_options *,const u_char *, u_int); 334extern void ntp_print(netdissect_options *,const u_char *, u_int); 335extern void null_if_print(u_char *,const struct pcap_pkthdr *, const u_char *); 336extern void ospf_print(netdissect_options *,const u_char *, 337 u_int, const u_char *); 338extern void pimv1_print(netdissect_options *,const u_char *, u_int); 339extern void mobile_print(netdissect_options *,const u_char *, u_int); 340extern void pim_print(netdissect_options *,const u_char *, u_int); 341extern void pppoe_if_print(u_char *,const struct pcap_pkthdr *, const u_char *); 342extern void pppoe_print(netdissect_options *,const u_char *, u_int); 343extern void ppp_print(netdissect_options *, 344 register const u_char *, u_int); 345 346extern void ppp_if_print(u_char *,const struct pcap_pkthdr *, const u_char *); 347extern void ppp_hdlc_if_print(u_char *, 348 const struct pcap_pkthdr *, const u_char *); 349extern void ppp_bsdos_if_print(u_char *, 350 const struct pcap_pkthdr *, const u_char *); 351 352extern int vjc_print(netdissect_options *,register const char *, 353 register u_int, u_short); 354 355extern void raw_if_print(u_char *, 356 const struct pcap_pkthdr *, const u_char *); 357 358extern void rip_print(netdissect_options *,const u_char *, u_int); 359 360extern void sctp_print(netdissect_options *ndo, 361 const u_char *bp, const u_char *bp2, 362 u_int sctpPacketLength); 363 364extern void sl_if_print(u_char *,const struct pcap_pkthdr *, const u_char *); 365 366extern void lane_if_print(u_char *,const struct pcap_pkthdr *,const u_char *); 367extern void cip_if_print(u_char *,const struct pcap_pkthdr *,const u_char *); 368extern void sl_bsdos_if_print(u_char *, 369 const struct pcap_pkthdr *, const u_char *); 370extern void sll_if_print(u_char *, 371 const struct pcap_pkthdr *, const u_char *); 372 373extern void snmp_print(netdissect_options *,const u_char *, u_int); 374extern void sunrpcrequest_print(netdissect_options *,const u_char *, 375 u_int, const u_char *); 376extern void tcp_print(netdissect_options *,const u_char *, u_int, 377 const u_char *, int); 378extern void tftp_print(netdissect_options *,const u_char *, u_int); 379extern void timed_print(netdissect_options *,const u_char *, u_int); 380extern void udp_print(netdissect_options *,const u_char *, u_int, 381 const u_char *, int); 382extern void wb_print(netdissect_options *,const void *, u_int); 383extern int ah_print(netdissect_options *,register const u_char *, 384 register const u_char *); 385extern void esp_print_decodesecret(netdissect_options *ndo); 386extern int ipcomp_print(netdissect_options *,register const u_char *, 387 register const u_char *, int *); 388extern void rx_print(netdissect_options *,register const u_char *, 389 int, int, int, u_char *); 390extern void netbeui_print(netdissect_options *,u_short, 391 const u_char *, int); 392extern void ipx_netbios_print(netdissect_options *,const u_char *, u_int); 393extern void nbt_tcp_print(netdissect_options *,const u_char *, int); 394extern void nbt_udp137_print(netdissect_options *, 395 const u_char *data, int); 396extern void nbt_udp138_print(netdissect_options *, 397 const u_char *data, int); 398extern char *smb_errstr(netdissect_options *,int, int); 399extern const char *nt_errstr(netdissect_options *, u_int32_t); 400extern void print_data(netdissect_options *,const unsigned char *, int); 401extern void l2tp_print(netdissect_options *,const u_char *, u_int); 402extern void lcp_print(netdissect_options *,const u_char *, u_int); 403extern void vrrp_print(netdissect_options *,const u_char *bp, 404 u_int len, int ttl); 405extern void cdp_print(netdissect_options *,const u_char *, 406 u_int, u_int, const u_char *, const u_char *); 407extern void stp_print(netdissect_options *,const u_char *p, u_int length); 408extern void radius_print(netdissect_options *,const u_char *, u_int); 409extern void lwres_print(netdissect_options *,const u_char *, u_int); 410extern void pptp_print(netdissect_options *,const u_char *, u_int); 411 412#ifdef INET6 413extern void ip6_print(netdissect_options *,const u_char *, u_int); 414extern void ip6_opt_print(netdissect_options *,const u_char *, int); 415extern int hbhopt_print(netdissect_options *,const u_char *); 416extern int dstopt_print(netdissect_options *,const u_char *); 417extern int frag6_print(netdissect_options *,const u_char *, 418 const u_char *); 419extern void icmp6_print(netdissect_options *,const u_char *, 420 const u_char *); 421extern void ripng_print(netdissect_options *,const u_char *, int); 422extern int rt6_print(netdissect_options *,const u_char *, const u_char *); 423extern void ospf6_print(netdissect_options *,const u_char *, u_int); 424extern void dhcp6_print(netdissect_options *,const u_char *, 425 u_int, u_int16_t, u_int16_t); 426 427extern void zephyr_print(netdissect_options * ndo, 428 const u_char *cp, int length); 429 430#endif /*INET6*/ 431extern u_short in_cksum(const u_short *, 432 register u_int, int); 433 434#endif 435 436#endif /* netdissect_h */ 437