2 * Copyright (c) 1988-1997
3 * The Regents of the University of California. All rights reserved.
5 * Copyright (c) 1998-2004 Michael Richardson <mcr@tcpdump.org>
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
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.
24 * @(#) $Header: /tcpdump/master/tcpdump/netdissect.h,v 1.16 2005/04/07 00:28:17 mcr Exp $ (LBL)
30 #ifdef HAVE_OS_PROTO_H
33 #include <sys/types.h>
35 #ifndef HAVE___ATTRIBUTE__
36 #define __attribute__(x)
43 #if !defined(HAVE_SNPRINTF)
44 int snprintf (char *str, size_t sz, const char *format, ...)
45 __attribute__ ((format (printf, 3, 4)));
48 #if !defined(HAVE_VSNPRINTF)
49 int vsnprintf (char *str, size_t sz, const char *format, va_list ap)
50 __attribute__((format (printf, 3, 0)));
54 extern size_t strlcat (char *, const char *, size_t);
57 extern size_t strlcpy (char *, const char *, size_t);
61 extern char *strdup (const char *str);
65 extern char *strsep(char **, const char *);
70 const char *s; /* string */
73 #define TOKBUFSIZE 128
74 extern const char *tok2strbuf(const struct tok *, const char *, int,
75 char *buf, size_t bufsize);
77 /* tok2str is deprecated */
78 extern const char *tok2str(const struct tok *, const char *, int);
79 extern char *bittok2str(const struct tok *, const char *, int);
82 typedef struct netdissect_options netdissect_options;
84 struct 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
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 */
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 */
111 const char *ndo_dltname;
114 struct sa_list *ndo_sa_list_head; /* used by print-esp.c */
115 struct sa_list *ndo_sa_default;
117 char *ndo_tcpmd5secret; /* TCP-MD5 secret key */
119 struct esp_algorithm *ndo_espsecret_xform; /* cache of decoded */
120 char *ndo_espsecret_key;
122 int ndo_packettype; /* as specified by -T */
124 char *ndo_program_name; /*used to generate self-identifying messages */
126 int32_t ndo_thiszone; /* seconds offset from gmt to local time */
130 /*global pointers to beginning and end of current packet (during printing) */
131 const u_char *ndo_packetp;
132 const u_char *ndo_snapend;
134 /* bookkeeping for ^T output */
137 /* pointer to void function to output stuff */
138 void (*ndo_default_print)(netdissect_options *,
139 register const u_char *bp, register u_int length);
140 void (*ndo_info)(netdissect_options *, int verbose);
142 int (*ndo_printf)(netdissect_options *,
143 const char *fmt, ...);
144 void (*ndo_error)(netdissect_options *,
145 const char *fmt, ...);
146 void (*ndo_warning)(netdissect_options *,
147 const char *fmt, ...);
150 #define PT_VAT 1 /* Visual Audio Tool */
151 #define PT_WB 2 /* distributed White Board */
152 #define PT_RPC 3 /* Remote Procedure Call */
153 #define PT_RTP 4 /* Real-Time Applications protocol */
154 #define PT_RTCP 5 /* Real-Time Applications control protocol */
155 #define PT_SNMP 6 /* Simple Network Management Protocol */
156 #define PT_CNFP 7 /* Cisco NetFlow protocol */
159 #define min(a,b) ((a)>(b)?(b):(a))
162 #define max(a,b) ((b)>(a)?(b):(a))
167 * The default snapshot length. This value allows most printers to print
168 * useful information while keeping the amount of unwanted data down.
169 * In particular, it allows for an ethernet header, tcp/ip header, and
170 * 14 bytes of data (assuming no ip options).
172 #define DEFAULT_SNAPLEN 68
174 #define DEFAULT_SNAPLEN 96
178 #define BIG_ENDIAN 4321
179 #define LITTLE_ENDIAN 1234
182 #define ESRC(ep) ((ep)->ether_shost)
183 #define EDST(ep) ((ep)->ether_dhost)
186 #define NTOHL(x) (x) = ntohl(x)
187 #define NTOHS(x) (x) = ntohs(x)
188 #define HTONL(x) (x) = htonl(x)
189 #define HTONS(x) (x) = htons(x)
193 * True if "l" bytes of "var" were captured.
195 * The "ndo->ndo_snapend - (l) <= ndo->ndo_snapend" checks to make sure
196 * "l" isn't so large that "ndo->ndo_snapend - (l)" underflows.
198 * The check is for <= rather than < because "l" might be 0.
200 #define ND_TTEST2(var, l) (ndo->ndo_snapend - (l) <= ndo->ndo_snapend && \
201 (const u_char *)&(var) <= ndo->ndo_snapend - (l))
203 /* True if "var" was captured */
204 #define ND_TTEST(var) ND_TTEST2(var, sizeof(var))
206 /* Bail if "l" bytes of "var" were not captured */
207 #define ND_TCHECK2(var, l) if (!ND_TTEST2(var, l)) goto trunc
209 /* Bail if "var" was not captured */
210 #define ND_TCHECK(var) ND_TCHECK2(var, sizeof(var))
212 #define ND_PRINT(STUFF) (*ndo->ndo_printf)STUFF
213 #define ND_DEFAULTPRINT(ap, length) (*ndo->ndo_default_print)(ndo, ap, length)
216 extern void ts_print(netdissect_options *ipdo,
217 const struct timeval *);
218 extern void relts_print(int);
221 extern int fn_print(const u_char *, const u_char *);
222 extern int fn_printn(const u_char *, u_int, const u_char *);
223 extern const char *tok2str(const struct tok *, const char *, int);
225 extern void wrapup(int);
228 extern char *read_infile(netdissect_options *, char *);
229 extern char *copy_argv(netdissect_options *, char **);
232 extern void safeputchar(int);
233 extern void safeputs(const char *);
236 extern const char *isonsap_string(netdissect_options *, const u_char *);
237 extern const char *llcsap_string(netdissect_options *, u_char);
238 extern const char *protoid_string(netdissect_options *, const u_char *);
239 extern const char *dnname_string(netdissect_options *, u_short);
240 extern const char *dnnum_string(netdissect_options *, u_short);
243 /* The printer routines. */
248 extern void eap_print(netdissect_options *,const u_char *, u_int);
249 extern int esp_print(netdissect_options *,
250 register const u_char *bp, int len, register const u_char *bp2,
251 int *nhdr, int *padlen);
252 extern void arp_print(netdissect_options *,const u_char *, u_int, u_int);
253 extern void isakmp_print(netdissect_options *,const u_char *,
254 u_int, const u_char *);
255 extern void isakmp_rfc3948_print(netdissect_options *,const u_char *,
256 u_int, const u_char *);
257 extern void ip_print(netdissect_options *,const u_char *, u_int);
258 extern void ip_print_inner(netdissect_options *ndo,
259 const u_char *bp, u_int length, u_int nh,
262 /* stuff that has not yet been rototiled */
264 extern void ascii_print_with_offset(netdissect_options *, const char *,
266 extern void ascii_print(netdissect_options *,const char *, u_int);
267 extern void hex_print_with_offset(netdissect_options *,const char *,
269 extern void telnet_print(netdissect_options *,const u_char *, u_int);
270 extern void hex_print(netdissect_options *,const char *, u_int);
271 extern int ether_encap_print(netdissect_options *,u_short, const u_char *,
272 u_int, u_int, u_short *);
273 extern int llc_print(netdissect_options *,
274 const u_char *, u_int, u_int, const u_char *,
275 const u_char *, u_short *);
276 extern void aarp_print(netdissect_options *,const u_char *, u_int);
277 extern void atalk_print(netdissect_options *,const u_char *, u_int);
278 extern void atm_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
279 extern void bootp_print(netdissect_options *,const u_char *,
280 u_int, u_short, u_short);
281 extern void bgp_print(netdissect_options *,const u_char *, int);
282 extern void bxxp_print(netdissect_options *,const u_char *, u_int);
283 extern void chdlc_if_print(u_char *user, const struct pcap_pkthdr *h,
284 register const u_char *p);
285 extern void chdlc_print(netdissect_options *ndo,
286 register const u_char *p, u_int length, u_int caplen);
287 extern void cisco_autorp_print(netdissect_options *,
288 const u_char *, u_int);
289 extern void cnfp_print(netdissect_options *,const u_char *cp,
290 u_int len, const u_char *bp);
291 extern void decnet_print(netdissect_options *,const u_char *,
293 extern void default_print(netdissect_options *,const u_char *, u_int);
294 extern void dvmrp_print(netdissect_options *,const u_char *, u_int);
295 extern void egp_print(netdissect_options *,const u_char *, u_int,
298 extern void arcnet_if_print(u_char*,const struct pcap_pkthdr *,const u_char *);
299 extern void ether_if_print(u_char *,const struct pcap_pkthdr *,const u_char *);
300 extern void token_if_print(u_char *,const struct pcap_pkthdr *,const u_char *);
301 extern void fddi_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
303 extern void gre_print(netdissect_options *,const u_char *, u_int);
304 extern void icmp_print(netdissect_options *,const u_char *, u_int,
306 extern void hsrp_print(netdissect_options *ndo,
307 register const u_char *bp, register u_int len);
308 extern void ieee802_11_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
309 extern void igmp_print(netdissect_options *,
310 register const u_char *, u_int);
311 extern void igrp_print(netdissect_options *,const u_char *, u_int,
313 extern void ipN_print(netdissect_options *,const u_char *, u_int);
314 extern void ipx_print(netdissect_options *,const u_char *, u_int);
315 extern void isoclns_print(netdissect_options *,const u_char *,
316 u_int, u_int, const u_char *, const u_char *);
317 extern void krb_print(netdissect_options *,const u_char *, u_int);
318 extern void llap_print(netdissect_options *,const u_char *, u_int);
319 extern const char *linkaddr_string(netdissect_options *ndo,
320 const u_char *ep, const unsigned int len);
321 extern void ltalk_if_print(netdissect_options *ndo,
322 u_char *user, const struct pcap_pkthdr *h,
324 extern void mpls_print(netdissect_options *ndo,
325 const u_char *bp, u_int length);
326 extern void msdp_print(netdissect_options *ndo,
327 const unsigned char *sp, u_int length);
328 extern void nfsreply_print(netdissect_options *,const u_char *,
329 u_int, const u_char *);
330 extern void nfsreq_print(netdissect_options *,const u_char *,
331 u_int, const u_char *);
332 extern void ns_print(netdissect_options *,const u_char *, u_int);
333 extern void ntp_print(netdissect_options *,const u_char *, u_int);
334 extern void null_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
335 extern void ospf_print(netdissect_options *,const u_char *,
336 u_int, const u_char *);
337 extern void pimv1_print(netdissect_options *,const u_char *, u_int);
338 extern void mobile_print(netdissect_options *,const u_char *, u_int);
339 extern void pim_print(netdissect_options *,const u_char *, u_int);
340 extern void pppoe_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
341 extern void pppoe_print(netdissect_options *,const u_char *, u_int);
342 extern void ppp_print(netdissect_options *,
343 register const u_char *, u_int);
345 extern void ppp_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
346 extern void ppp_hdlc_if_print(u_char *,
347 const struct pcap_pkthdr *, const u_char *);
348 extern void ppp_bsdos_if_print(u_char *,
349 const struct pcap_pkthdr *, const u_char *);
351 extern int vjc_print(netdissect_options *,register const char *,
352 register u_int, u_short);
354 extern void raw_if_print(u_char *,
355 const struct pcap_pkthdr *, const u_char *);
357 extern void rip_print(netdissect_options *,const u_char *, u_int);
359 extern void sctp_print(netdissect_options *ndo,
360 const u_char *bp, const u_char *bp2,
361 u_int sctpPacketLength);
363 extern void sl_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
365 extern void lane_if_print(u_char *,const struct pcap_pkthdr *,const u_char *);
366 extern void cip_if_print(u_char *,const struct pcap_pkthdr *,const u_char *);
367 extern void sl_bsdos_if_print(u_char *,
368 const struct pcap_pkthdr *, const u_char *);
369 extern void sll_if_print(u_char *,
370 const struct pcap_pkthdr *, const u_char *);
372 extern void snmp_print(netdissect_options *,const u_char *, u_int);
373 extern void sunrpcrequest_print(netdissect_options *,const u_char *,
374 u_int, const u_char *);
375 extern void tcp_print(netdissect_options *,const u_char *, u_int,
376 const u_char *, int);
377 extern void tftp_print(netdissect_options *,const u_char *, u_int);
378 extern void timed_print(netdissect_options *,const u_char *, u_int);
379 extern void udp_print(netdissect_options *,const u_char *, u_int,
380 const u_char *, int);
381 extern void wb_print(netdissect_options *,const void *, u_int);
382 extern int ah_print(netdissect_options *,register const u_char *,
383 register const u_char *);
384 extern void esp_print_decodesecret(netdissect_options *ndo);
385 extern int ipcomp_print(netdissect_options *,register const u_char *,
386 register const u_char *, int *);
387 extern void rx_print(netdissect_options *,register const u_char *,
388 int, int, int, u_char *);
389 extern void netbeui_print(netdissect_options *,u_short,
390 const u_char *, int);
391 extern void ipx_netbios_print(netdissect_options *,const u_char *, u_int);
392 extern void nbt_tcp_print(netdissect_options *,const u_char *, int);
393 extern void nbt_udp137_print(netdissect_options *,
394 const u_char *data, int);
395 extern void nbt_udp138_print(netdissect_options *,
396 const u_char *data, int);
397 extern char *smb_errstr(netdissect_options *,int, int);
398 extern const char *nt_errstr(netdissect_options *, u_int32_t);
399 extern void print_data(netdissect_options *,const unsigned char *, int);
400 extern void l2tp_print(netdissect_options *,const u_char *, u_int);
401 extern void lcp_print(netdissect_options *,const u_char *, u_int);
402 extern void vrrp_print(netdissect_options *,const u_char *bp,
404 extern void cdp_print(netdissect_options *,const u_char *,
405 u_int, u_int, const u_char *, const u_char *);
406 extern void stp_print(netdissect_options *,const u_char *p, u_int length);
407 extern void radius_print(netdissect_options *,const u_char *, u_int);
408 extern void lwres_print(netdissect_options *,const u_char *, u_int);
409 extern void pptp_print(netdissect_options *,const u_char *, u_int);
412 extern void ip6_print(netdissect_options *,const u_char *, u_int);
413 extern void ip6_opt_print(netdissect_options *,const u_char *, int);
414 extern int hbhopt_print(netdissect_options *,const u_char *);
415 extern int dstopt_print(netdissect_options *,const u_char *);
416 extern int frag6_print(netdissect_options *,const u_char *,
418 extern void icmp6_print(netdissect_options *,const u_char *,
420 extern void ripng_print(netdissect_options *,const u_char *, int);
421 extern int rt6_print(netdissect_options *,const u_char *, const u_char *);
422 extern void ospf6_print(netdissect_options *,const u_char *, u_int);
423 extern void dhcp6_print(netdissect_options *,const u_char *,
424 u_int, u_int16_t, u_int16_t);
426 extern void zephyr_print(netdissect_options * ndo,
427 const u_char *cp, int length);
430 extern u_short in_cksum(const u_short *,
431 register u_int, int);
435 #endif /* netdissect_h */