netdissect.h revision 190207
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 1.23.2.2 2008-04-04 19:42:52 guy 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); 80extern char *bittok2str_nosep(const struct tok *, const char *, int); 81 82 83typedef struct netdissect_options netdissect_options; 84 85struct netdissect_options { 86 int ndo_aflag; /* translate network and broadcast addresses */ 87 int ndo_eflag; /* print ethernet header */ 88 int ndo_fflag; /* don't translate "foreign" IP address */ 89 int ndo_Kflag; /* don't check TCP checksums */ 90 int ndo_nflag; /* leave addresses as numbers */ 91 int ndo_Nflag; /* remove domains from printed host names */ 92 int ndo_qflag; /* quick (shorter) output */ 93 int ndo_Rflag; /* print sequence # field in AH/ESP*/ 94 int ndo_sflag; /* use the libsmi to translate OIDs */ 95 int ndo_Sflag; /* print raw TCP sequence numbers */ 96 int ndo_tflag; /* print packet arrival time */ 97 int ndo_Uflag; /* "unbuffered" output of dump files */ 98 int ndo_uflag; /* Print undecoded NFS handles */ 99 int ndo_vflag; /* verbose */ 100 int ndo_xflag; /* print packet in hex */ 101 int ndo_Xflag; /* print packet in hex/ascii */ 102 int ndo_Aflag; /* print packet only in ascii observing TAB, 103 * LF, CR and SPACE as graphical chars 104 */ 105 int ndo_Bflag; /* buffer size */ 106 int ndo_Iflag; /* rfmon (monitor) mode */ 107 int ndo_Oflag; /* run filter code optimizer */ 108 int ndo_dlt; /* if != -1, ask libpcap for the DLT it names*/ 109 int ndo_pflag; /* don't go promiscuous */ 110 111 int ndo_Cflag; /* rotate dump files after this many bytes */ 112 int ndo_Cflag_count; /* Keep track of which file number we're writing */ 113 int ndo_Gflag; /* rotate dump files after this many seconds */ 114 int ndo_Gflag_count; /* number of files created with Gflag rotation */ 115 time_t ndo_Gflag_time; /* The last time_t the dump file was rotated. */ 116 int ndo_Wflag; /* recycle output files after this number of files */ 117 int ndo_WflagChars; 118 int ndo_suppress_default_print; /* don't use default_print() for unknown packet types */ 119 const char *ndo_dltname; 120 121 char *ndo_espsecret; 122 struct sa_list *ndo_sa_list_head; /* used by print-esp.c */ 123 struct sa_list *ndo_sa_default; 124 125 char *ndo_tcpmd5secret; /* TCP-MD5 secret key */ 126 127 struct esp_algorithm *ndo_espsecret_xform; /* cache of decoded */ 128 char *ndo_espsecret_key; 129 130 int ndo_packettype; /* as specified by -T */ 131 132 char *ndo_program_name; /*used to generate self-identifying messages */ 133 134 int32_t ndo_thiszone; /* seconds offset from gmt to local time */ 135 136 int ndo_snaplen; 137 138 /*global pointers to beginning and end of current packet (during printing) */ 139 const u_char *ndo_packetp; 140 const u_char *ndo_snapend; 141 142 /* bookkeeping for ^T output */ 143 int ndo_infodelay; 144 145 /* pointer to void function to output stuff */ 146 void (*ndo_default_print)(netdissect_options *, 147 register const u_char *bp, register u_int length); 148 void (*ndo_info)(netdissect_options *, int verbose); 149 150 int (*ndo_printf)(netdissect_options *, 151 const char *fmt, ...); 152 void (*ndo_error)(netdissect_options *, 153 const char *fmt, ...); 154 void (*ndo_warning)(netdissect_options *, 155 const char *fmt, ...); 156}; 157 158#define PT_VAT 1 /* Visual Audio Tool */ 159#define PT_WB 2 /* distributed White Board */ 160#define PT_RPC 3 /* Remote Procedure Call */ 161#define PT_RTP 4 /* Real-Time Applications protocol */ 162#define PT_RTCP 5 /* Real-Time Applications control protocol */ 163#define PT_SNMP 6 /* Simple Network Management Protocol */ 164#define PT_CNFP 7 /* Cisco NetFlow protocol */ 165 166#ifndef min 167#define min(a,b) ((a)>(b)?(b):(a)) 168#endif 169#ifndef max 170#define max(a,b) ((b)>(a)?(b):(a)) 171#endif 172 173#ifndef INET6 174/* 175 * The default snapshot length. This value allows most printers to print 176 * useful information while keeping the amount of unwanted data down. 177 * In particular, it allows for an ethernet header, tcp/ip header, and 178 * 14 bytes of data (assuming no ip options). 179 */ 180#define DEFAULT_SNAPLEN 68 181#else 182#define DEFAULT_SNAPLEN 96 183#endif 184 185#ifndef BIG_ENDIAN 186#define BIG_ENDIAN 4321 187#define LITTLE_ENDIAN 1234 188#endif 189 190#define ESRC(ep) ((ep)->ether_shost) 191#define EDST(ep) ((ep)->ether_dhost) 192 193#ifndef NTOHL 194#define NTOHL(x) (x) = ntohl(x) 195#define NTOHS(x) (x) = ntohs(x) 196#define HTONL(x) (x) = htonl(x) 197#define HTONS(x) (x) = htons(x) 198#endif 199 200/* 201 * True if "l" bytes of "var" were captured. 202 * 203 * The "ndo->ndo_snapend - (l) <= ndo->ndo_snapend" checks to make sure 204 * "l" isn't so large that "ndo->ndo_snapend - (l)" underflows. 205 * 206 * The check is for <= rather than < because "l" might be 0. 207 */ 208#define ND_TTEST2(var, l) (ndo->ndo_snapend - (l) <= ndo->ndo_snapend && \ 209 (const u_char *)&(var) <= ndo->ndo_snapend - (l)) 210 211/* True if "var" was captured */ 212#define ND_TTEST(var) ND_TTEST2(var, sizeof(var)) 213 214/* Bail if "l" bytes of "var" were not captured */ 215#define ND_TCHECK2(var, l) if (!ND_TTEST2(var, l)) goto trunc 216 217/* Bail if "var" was not captured */ 218#define ND_TCHECK(var) ND_TCHECK2(var, sizeof(var)) 219 220#define ND_PRINT(STUFF) (*ndo->ndo_printf)STUFF 221#define ND_DEFAULTPRINT(ap, length) (*ndo->ndo_default_print)(ndo, ap, length) 222 223#if 0 224extern void ts_print(netdissect_options *ipdo, 225 const struct timeval *); 226extern void relts_print(int); 227#endif 228 229extern int fn_print(const u_char *, const u_char *); 230extern int fn_printn(const u_char *, u_int, const u_char *); 231extern const char *tok2str(const struct tok *, const char *, int); 232 233extern void wrapup(int); 234 235#if 0 236extern char *read_infile(netdissect_options *, char *); 237extern char *copy_argv(netdissect_options *, char **); 238#endif 239 240extern void safeputchar(int); 241extern void safeputs(const char *, int); 242 243#if 0 244extern const char *isonsap_string(netdissect_options *, const u_char *); 245extern const char *protoid_string(netdissect_options *, const u_char *); 246extern const char *dnname_string(netdissect_options *, u_short); 247extern const char *dnnum_string(netdissect_options *, u_short); 248#endif 249 250/* The printer routines. */ 251 252#include <pcap.h> 253 254 255extern void eap_print(netdissect_options *,const u_char *, u_int); 256extern int esp_print(netdissect_options *, 257 register const u_char *bp, int len, register const u_char *bp2, 258 int *nhdr, int *padlen); 259extern void arp_print(netdissect_options *,const u_char *, u_int, u_int); 260extern void isakmp_print(netdissect_options *,const u_char *, 261 u_int, const u_char *); 262extern void isakmp_rfc3948_print(netdissect_options *,const u_char *, 263 u_int, const u_char *); 264extern void ip_print(netdissect_options *,const u_char *, u_int); 265extern void ip_print_inner(netdissect_options *ndo, 266 const u_char *bp, u_int length, u_int nh, 267 const u_char *bp2); 268extern void rrcp_print(netdissect_options *,const u_char *, u_int); 269 270/* stuff that has not yet been rototiled */ 271#if 0 272extern void ascii_print(netdissect_options *,u_int); 273extern void hex_and_ascii_print_with_offset(netdissect_options *,const char *, 274 u_int, u_int); 275extern void hex_and_ascii_print(netdissect_options *,const char *, u_int); 276extern void hex_print_with_offset(netdissect_options *,const char *, 277 u_int, u_int); 278extern void hex_print(netdissect_options *,const char *, u_int); 279extern void telnet_print(netdissect_options *,const u_char *, u_int); 280extern int ether_encap_print(netdissect_options *,u_short, const u_char *, 281 u_int, u_int, u_short *); 282extern int llc_print(netdissect_options *, 283 const u_char *, u_int, u_int, const u_char *, 284 const u_char *, u_short *); 285extern void aarp_print(netdissect_options *,const u_char *, u_int); 286extern void atalk_print(netdissect_options *,const u_char *, u_int); 287extern void atm_if_print(u_char *,const struct pcap_pkthdr *, const u_char *); 288extern void bootp_print(netdissect_options *,const u_char *, 289 u_int, u_short, u_short); 290extern void bgp_print(netdissect_options *,const u_char *, int); 291extern void bxxp_print(netdissect_options *,const u_char *, u_int); 292extern void chdlc_if_print(u_char *user, const struct pcap_pkthdr *h, 293 register const u_char *p); 294extern void chdlc_print(netdissect_options *ndo, 295 register const u_char *p, u_int length, u_int caplen); 296extern void cisco_autorp_print(netdissect_options *, 297 const u_char *, u_int); 298extern void cnfp_print(netdissect_options *,const u_char *cp, 299 u_int len, const u_char *bp); 300extern void decnet_print(netdissect_options *,const u_char *, 301 u_int, u_int); 302extern void default_print(netdissect_options *,const u_char *, u_int); 303extern void dvmrp_print(netdissect_options *,const u_char *, u_int); 304extern void egp_print(netdissect_options *,const u_char *, u_int, 305 const u_char *); 306 307extern void arcnet_if_print(u_char*,const struct pcap_pkthdr *,const u_char *); 308extern void ether_if_print(u_char *,const struct pcap_pkthdr *,const u_char *); 309extern void token_if_print(u_char *,const struct pcap_pkthdr *,const u_char *); 310extern void fddi_if_print(u_char *,const struct pcap_pkthdr *, const u_char *); 311 312extern void gre_print(netdissect_options *,const u_char *, u_int); 313extern void icmp_print(netdissect_options *,const u_char *, u_int, 314 const u_char *); 315extern void hsrp_print(netdissect_options *ndo, 316 register const u_char *bp, register u_int len); 317extern void ieee802_11_if_print(u_char *,const struct pcap_pkthdr *, const u_char *); 318extern void igmp_print(netdissect_options *, 319 register const u_char *, u_int); 320extern void igrp_print(netdissect_options *,const u_char *, u_int, 321 const u_char *); 322extern void ipN_print(netdissect_options *,const u_char *, u_int); 323extern void ipx_print(netdissect_options *,const u_char *, u_int); 324extern void isoclns_print(netdissect_options *,const u_char *, 325 u_int, u_int, const u_char *, const u_char *); 326extern void krb_print(netdissect_options *,const u_char *, u_int); 327extern void llap_print(netdissect_options *,const u_char *, u_int); 328extern const char *linkaddr_string(netdissect_options *ndo, 329 const u_char *ep, const unsigned int len); 330extern void ltalk_if_print(netdissect_options *ndo, 331 u_char *user, const struct pcap_pkthdr *h, 332 const u_char *p); 333extern void mpls_print(netdissect_options *ndo, 334 const u_char *bp, u_int length); 335extern void msdp_print(netdissect_options *ndo, 336 const unsigned char *sp, u_int length); 337extern void nfsreply_print(netdissect_options *,const u_char *, 338 u_int, const u_char *); 339extern void nfsreq_print(netdissect_options *,const u_char *, 340 u_int, const u_char *); 341extern void ns_print(netdissect_options *,const u_char *, u_int); 342extern void ntp_print(netdissect_options *,const u_char *, u_int); 343extern void null_if_print(u_char *,const struct pcap_pkthdr *, const u_char *); 344extern void ospf_print(netdissect_options *,const u_char *, 345 u_int, const u_char *); 346extern void pimv1_print(netdissect_options *,const u_char *, u_int); 347extern void mobile_print(netdissect_options *,const u_char *, u_int); 348extern void pim_print(netdissect_options *,const u_char *, u_int); 349extern void pppoe_if_print(u_char *,const struct pcap_pkthdr *, const u_char *); 350extern void pppoe_print(netdissect_options *,const u_char *, u_int); 351extern void ppp_print(netdissect_options *, 352 register const u_char *, u_int); 353 354extern void ppp_if_print(u_char *,const struct pcap_pkthdr *, const u_char *); 355extern void ppp_hdlc_if_print(u_char *, 356 const struct pcap_pkthdr *, const u_char *); 357extern void ppp_bsdos_if_print(u_char *, 358 const struct pcap_pkthdr *, const u_char *); 359 360extern int vjc_print(netdissect_options *,register const char *, 361 register u_int, u_short); 362 363extern void raw_if_print(u_char *, 364 const struct pcap_pkthdr *, const u_char *); 365 366extern void rip_print(netdissect_options *,const u_char *, u_int); 367 368extern void sctp_print(netdissect_options *ndo, 369 const u_char *bp, const u_char *bp2, 370 u_int sctpPacketLength); 371 372extern void sl_if_print(u_char *,const struct pcap_pkthdr *, const u_char *); 373 374extern void lane_if_print(u_char *,const struct pcap_pkthdr *,const u_char *); 375extern void cip_if_print(u_char *,const struct pcap_pkthdr *,const u_char *); 376extern void sl_bsdos_if_print(u_char *, 377 const struct pcap_pkthdr *, const u_char *); 378extern void sll_if_print(u_char *, 379 const struct pcap_pkthdr *, const u_char *); 380 381extern void snmp_print(netdissect_options *,const u_char *, u_int); 382extern void sunrpcrequest_print(netdissect_options *,const u_char *, 383 u_int, const u_char *); 384extern void tcp_print(netdissect_options *,const u_char *, u_int, 385 const u_char *, int); 386extern void tftp_print(netdissect_options *,const u_char *, u_int); 387extern void timed_print(netdissect_options *,const u_char *, u_int); 388extern void udp_print(netdissect_options *,const u_char *, u_int, 389 const u_char *, int); 390extern void wb_print(netdissect_options *,const void *, u_int); 391extern int ah_print(netdissect_options *,register const u_char *, 392 register const u_char *); 393extern void esp_print_decodesecret(netdissect_options *ndo); 394extern int ipcomp_print(netdissect_options *,register const u_char *, 395 register const u_char *, int *); 396extern void rx_print(netdissect_options *,register const u_char *, 397 int, int, int, u_char *); 398extern void netbeui_print(netdissect_options *,u_short, 399 const u_char *, int); 400extern void ipx_netbios_print(netdissect_options *,const u_char *, u_int); 401extern void nbt_tcp_print(netdissect_options *,const u_char *, int); 402extern void nbt_udp137_print(netdissect_options *, 403 const u_char *data, int); 404extern void nbt_udp138_print(netdissect_options *, 405 const u_char *data, int); 406extern char *smb_errstr(netdissect_options *,int, int); 407extern const char *nt_errstr(netdissect_options *, u_int32_t); 408extern void print_data(netdissect_options *,const unsigned char *, int); 409extern void l2tp_print(netdissect_options *,const u_char *, u_int); 410extern void lcp_print(netdissect_options *,const u_char *, u_int); 411extern void vrrp_print(netdissect_options *,const u_char *bp, 412 u_int len, int ttl); 413extern void cdp_print(netdissect_options *,const u_char *, 414 u_int, u_int, const u_char *, const u_char *); 415extern void stp_print(netdissect_options *,const u_char *p, u_int length); 416extern void radius_print(netdissect_options *,const u_char *, u_int); 417extern void lwres_print(netdissect_options *,const u_char *, u_int); 418extern void pptp_print(netdissect_options *,const u_char *, u_int); 419 420#ifdef INET6 421extern void ip6_print(netdissect_options *,const u_char *, u_int); 422extern void ip6_opt_print(netdissect_options *,const u_char *, int); 423extern int hbhopt_print(netdissect_options *,const u_char *); 424extern int dstopt_print(netdissect_options *,const u_char *); 425extern int frag6_print(netdissect_options *,const u_char *, 426 const u_char *); 427extern void icmp6_print(netdissect_options *,const u_char *, 428 const u_char *); 429extern void ripng_print(netdissect_options *,const u_char *, int); 430extern int rt6_print(netdissect_options *,const u_char *, const u_char *); 431extern void ospf6_print(netdissect_options *,const u_char *, u_int); 432extern void dhcp6_print(netdissect_options *,const u_char *, 433 u_int, u_int16_t, u_int16_t); 434 435extern void zephyr_print(netdissect_options * ndo, 436 const u_char *cp, int length); 437 438#endif /*INET6*/ 439extern u_short in_cksum(const u_short *, 440 register u_int, int); 441 442#endif 443 444#endif /* netdissect_h */ 445