1 /*
2  * Copyright (c) 1988-1997
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Copyright (c) 1998-2012  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 1.27 2008-08-16 11:36:20 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)
44 int snprintf (char *str, size_t sz, const char *format, ...)
45 #ifdef __ATTRIBUTE___FORMAT_OK
46      __attribute__((format (printf, 3, 4)))
47 #endif /* __ATTRIBUTE___FORMAT_OK */
48      ;
49 #endif /* !defined(HAVE_SNPRINTF) */
50 
51 #if !defined(HAVE_VSNPRINTF)
52 int vsnprintf (char *str, size_t sz, const char *format, va_list ap)
53 #ifdef __ATTRIBUTE___FORMAT_OK
54      __attribute__((format (printf, 3, 0)))
55 #endif /* __ATTRIBUTE___FORMAT_OK */
56      ;
57 #endif /* !defined(HAVE_SNPRINTF) */
58 
59 #ifndef HAVE_STRLCAT
60 extern size_t strlcat (char *, const char *, size_t);
61 #endif
62 #ifndef HAVE_STRLCPY
63 extern size_t strlcpy (char *, const char *, size_t);
64 #endif
65 
66 #ifndef HAVE_STRDUP
67 extern char *strdup (const char *str);
68 #endif
69 
70 #ifndef HAVE_STRSEP
71 extern char *strsep(char **, const char *);
72 #endif
73 
74 struct tok {
75 	int v;			/* value */
76 	const char *s;		/* string */
77 };
78 
79 #define TOKBUFSIZE 128
80 extern const char *tok2strbuf(const struct tok *, const char *, int,
81 			      char *buf, size_t bufsize);
82 
83 /* tok2str is deprecated */
84 extern const char *tok2str(const struct tok *, const char *, int);
85 extern char *bittok2str(const struct tok *, const char *, int);
86 extern char *bittok2str_nosep(const struct tok *, const char *, int);
87 
88 
89 typedef struct netdissect_options netdissect_options;
90 
91 struct netdissect_options {
92   int ndo_aflag;		/* translate network and broadcast addresses */
93   int ndo_bflag;		/* print 4 byte ASes in ASDOT notation */
94   int ndo_eflag;		/* print ethernet header */
95   int ndo_fflag;		/* don't translate "foreign" IP address */
96   int ndo_Kflag;		/* don't check TCP checksums */
97   int ndo_nflag;		/* leave addresses as numbers */
98   int ndo_Nflag;		/* remove domains from printed host names */
99   int ndo_qflag;		/* quick (shorter) output */
100   int ndo_Rflag;		/* print sequence # field in AH/ESP*/
101   int ndo_sflag;		/* use the libsmi to translate OIDs */
102   int ndo_Sflag;		/* print raw TCP sequence numbers */
103   int ndo_tflag;		/* print packet arrival time */
104   int ndo_Uflag;		/* "unbuffered" output of dump files */
105   int ndo_uflag;		/* Print undecoded NFS handles */
106   int ndo_vflag;		/* verbose */
107   int ndo_xflag;		/* print packet in hex */
108   int ndo_Xflag;		/* print packet in hex/ascii */
109   int ndo_Aflag;		/* print packet only in ascii observing TAB,
110 				 * LF, CR and SPACE as graphical chars
111 				 */
112   int ndo_Bflag;		/* buffer size */
113   int ndo_Iflag;		/* rfmon (monitor) mode */
114   int ndo_Oflag;                /* run filter code optimizer */
115   int ndo_dlt;                  /* if != -1, ask libpcap for the DLT it names*/
116   int ndo_jflag;                /* packet time stamp source */
117   int ndo_pflag;                /* don't go promiscuous */
118 
119   int ndo_Cflag;                /* rotate dump files after this many bytes */
120   int ndo_Cflag_count;      /* Keep track of which file number we're writing */
121   int ndo_Gflag;            /* rotate dump files after this many seconds */
122   int ndo_Gflag_count;      /* number of files created with Gflag rotation */
123   time_t ndo_Gflag_time;    /* The last time_t the dump file was rotated. */
124   int ndo_Wflag;          /* recycle output files after this number of files */
125   int ndo_WflagChars;
126   int ndo_Hflag;		/* dissect 802.11s draft mesh standard */
127   int ndo_suppress_default_print; /* don't use default_print() for unknown packet types */
128   const char *ndo_dltname;
129 
130   char *ndo_espsecret;
131   struct sa_list *ndo_sa_list_head;  /* used by print-esp.c */
132   struct sa_list *ndo_sa_default;
133 
134   char *ndo_sigsecret;     	/* Signature verification secret key */
135 
136   struct esp_algorithm *ndo_espsecret_xform;   /* cache of decoded  */
137   char                 *ndo_espsecret_key;
138 
139   int   ndo_packettype;	/* as specified by -T */
140 
141   char *ndo_program_name;	/*used to generate self-identifying messages */
142 
143   int32_t ndo_thiszone;	/* seconds offset from gmt to local time */
144 
145   int   ndo_snaplen;
146 
147   /*global pointers to beginning and end of current packet (during printing) */
148   const u_char *ndo_packetp;
149   const u_char *ndo_snapend;
150 
151   /* bookkeeping for ^T output */
152   int ndo_infodelay;
153 
154   /* pointer to void function to output stuff */
155   void (*ndo_default_print)(netdissect_options *,
156   		      register const u_char *bp, register u_int length);
157   void (*ndo_info)(netdissect_options *, int verbose);
158 
159   int  (*ndo_printf)(netdissect_options *,
160 		     const char *fmt, ...)
161 #ifdef __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS
162 		     __attribute__ ((format (printf, 2, 3)))
163 #endif
164 		     ;
165   void (*ndo_error)(netdissect_options *,
166 		    const char *fmt, ...)
167 #ifdef __ATTRIBUTE___NORETURN_OK_FOR_FUNCTION_POINTERS
168 		     __attribute__ ((noreturn))
169 #endif /* __ATTRIBUTE___NORETURN_OK_FOR_FUNCTION_POINTERS */
170 #ifdef __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS
171 		     __attribute__ ((format (printf, 2, 3)))
172 #endif /* __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS */
173 		     ;
174   void (*ndo_warning)(netdissect_options *,
175 		      const char *fmt, ...)
176 #ifdef __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS
177 		     __attribute__ ((format (printf, 2, 3)))
178 #endif
179 		     ;
180 };
181 
182 #define PT_VAT		1	/* Visual Audio Tool */
183 #define PT_WB		2	/* distributed White Board */
184 #define PT_RPC		3	/* Remote Procedure Call */
185 #define PT_RTP		4	/* Real-Time Applications protocol */
186 #define PT_RTCP		5	/* Real-Time Applications control protocol */
187 #define PT_SNMP		6	/* Simple Network Management Protocol */
188 #define PT_CNFP		7	/* Cisco NetFlow protocol */
189 #define PT_TFTP		8	/* trivial file transfer protocol */
190 #define PT_AODV		9	/* Ad-hoc On-demand Distance Vector Protocol */
191 #define PT_CARP		10	/* Common Address Redundancy Protocol */
192 #define PT_RADIUS	11	/* RADIUS authentication Protocol */
193 #define PT_ZMTP1	12	/* ZeroMQ Message Transport Protocol 1.0 */
194 #define PT_VXLAN	13	/* Virtual eXtensible Local Area Network */
195 #define PT_PGM		14	/* [UDP-encapsulated] Pragmatic General Multicast */
196 #define PT_PGM_ZMTP1	15	/* ZMTP/1.0 inside PGM (native or UDP-encapsulated) */
197 #define PT_LMP		16	/* Link Management Protocol */
198 
199 #ifndef min
200 #define min(a,b) ((a)>(b)?(b):(a))
201 #endif
202 #ifndef max
203 #define max(a,b) ((b)>(a)?(b):(a))
204 #endif
205 
206 /*
207  * Maximum snapshot length.  This should be enough to capture the full
208  * packet on most network interfaces.
209  *
210  * XXX - could it be larger?  If so, should it?  Some applications might
211  * use the snapshot length in a savefile header to control the size of
212  * the buffer they allocate, so a size of, say, 2^31-1 might not work
213  * well.
214  */
215 #define MAXIMUM_SNAPLEN	65535
216 
217 /*
218  * The default snapshot length is the maximum.
219  */
220 #define DEFAULT_SNAPLEN	MAXIMUM_SNAPLEN
221 
222 #define ESRC(ep) ((ep)->ether_shost)
223 #define EDST(ep) ((ep)->ether_dhost)
224 
225 #ifndef NTOHL
226 #define NTOHL(x)	(x) = ntohl(x)
227 #define NTOHS(x)	(x) = ntohs(x)
228 #define HTONL(x)	(x) = htonl(x)
229 #define HTONS(x)	(x) = htons(x)
230 #endif
231 
232 /*
233  * True if "l" bytes of "var" were captured.
234  *
235  * The "ndo->ndo_snapend - (l) <= ndo->ndo_snapend" checks to make sure
236  * "l" isn't so large that "ndo->ndo_snapend - (l)" underflows.
237  *
238  * The check is for <= rather than < because "l" might be 0.
239  */
240 #define ND_TTEST2(var, l) (ndo->ndo_snapend - (l) <= ndo->ndo_snapend && \
241 			(const u_char *)&(var) <= ndo->ndo_snapend - (l))
242 
243 /* True if "var" was captured */
244 #define ND_TTEST(var) ND_TTEST2(var, sizeof(var))
245 
246 /* Bail if "l" bytes of "var" were not captured */
247 #define ND_TCHECK2(var, l) if (!ND_TTEST2(var, l)) goto trunc
248 
249 /* Bail if "var" was not captured */
250 #define ND_TCHECK(var) ND_TCHECK2(var, sizeof(var))
251 
252 #define ND_PRINT(STUFF) (*ndo->ndo_printf)STUFF
253 #define ND_DEFAULTPRINT(ap, length) (*ndo->ndo_default_print)(ndo, ap, length)
254 
255 #if 0
256 extern void ts_print(netdissect_options *ipdo,
257 		     const struct timeval *);
258 extern void relts_print(int);
259 #endif
260 
261 extern int fn_print(const u_char *, const u_char *);
262 extern int fn_printn(const u_char *, u_int, const u_char *);
263 extern const char *tok2str(const struct tok *, const char *, int);
264 
265 extern void wrapup(int);
266 
267 #if 0
268 extern char *read_infile(netdissect_options *, char *);
269 extern char *copy_argv(netdissect_options *, char **);
270 #endif
271 
272 /*
273  * Locale-independent macros for testing character properties and
274  * stripping the 8th bit from characters.  Assumed to be handed
275  * a value between 0 and 255, i.e. don't hand them a char, as
276  * those might be in the range -128 to 127.
277  */
278 #define ND_ISASCII(c)	(!((c) & 0x80))	/* value is an ASCII code point */
279 #define ND_ISPRINT(c)	((c) >= 0x20 && (c) <= 0x7E)
280 #define ND_ISGRAPH(c)	((c) > 0x20 && (c) <= 0x7E)
281 #define ND_TOASCII(c)	((c) & 0x7F)
282 
283 extern void safeputchar(int);
284 extern void safeputs(const char *, int);
285 
286 #ifdef LBL_ALIGN
287 /*
288  * The processor doesn't natively handle unaligned loads,
289  * and the compiler might "helpfully" optimize memcpy()
290  * and memcmp(), when handed pointers that would normally
291  * be properly aligned, into sequences that assume proper
292  * alignment.
293  *
294  * Do copies and compares of possibly-unaligned data by
295  * calling routines that wrap memcpy() and memcmp(), to
296  * prevent that optimization.
297  */
298 extern void unaligned_memcpy(void *, const void *, size_t);
299 extern int unaligned_memcmp(const void *, const void *, size_t);
300 #define UNALIGNED_MEMCPY(p, q, l)	unaligned_memcpy((p), (q), (l))
301 #define UNALIGNED_MEMCMP(p, q, l)	unaligned_memcmp((p), (q), (l))
302 #else
303 /*
304  * The procesor natively handles unaligned loads, so just use memcpy()
305  * and memcmp(), to enable those optimizations.
306  */
307 #define UNALIGNED_MEMCPY(p, q, l)	memcpy((p), (q), (l))
308 #define UNALIGNED_MEMCMP(p, q, l)	memcmp((p), (q), (l))
309 #endif
310 
311 #define PLURAL_SUFFIX(n) \
312 	(((n) != 1) ? "s" : "")
313 
314 #if 0
315 extern const char *isonsap_string(netdissect_options *, const u_char *);
316 extern const char *protoid_string(netdissect_options *, const u_char *);
317 extern const char *dnname_string(netdissect_options *, u_short);
318 extern const char *dnnum_string(netdissect_options *, u_short);
319 #endif
320 
321 /* The printer routines. */
322 
323 #include <pcap.h>
324 
325 typedef u_int (*if_ndo_printer)(struct netdissect_options *ndo,
326 				const struct pcap_pkthdr *, const u_char *);
327 typedef u_int (*if_printer)(const struct pcap_pkthdr *, const u_char *);
328 
329 extern if_ndo_printer lookup_ndo_printer(int);
330 extern if_printer lookup_printer(int);
331 
332 extern void eap_print(netdissect_options *,const u_char *, u_int);
333 extern int esp_print(netdissect_options *,
334 		     register const u_char *bp, int len, register const u_char *bp2,
335 		     int *nhdr, int *padlen);
336 extern void arp_print(netdissect_options *,const u_char *, u_int, u_int);
337 extern void tipc_print(netdissect_options *, const u_char *, u_int, u_int);
338 extern void msnlb_print(netdissect_options *, const u_char *);
339 extern void icmp6_print(netdissect_options *ndo, const u_char *,
340                         u_int, const u_char *, int);
341 extern void isakmp_print(netdissect_options *,const u_char *,
342 			 u_int, const u_char *);
343 extern void isakmp_rfc3948_print(netdissect_options *,const u_char *,
344 				 u_int, const u_char *);
345 extern void ip_print(netdissect_options *,const u_char *, u_int);
346 extern void ip_print_inner(netdissect_options *ndo,
347 			   const u_char *bp, u_int length, u_int nh,
348 			   const u_char *bp2);
349 extern void rrcp_print(netdissect_options *,const u_char *, u_int);
350 
351 extern void ether_print(netdissect_options *,
352                         const u_char *, u_int, u_int,
353                         void (*)(netdissect_options *, const u_char *),
354                         const u_char *);
355 
356 extern u_int ether_if_print(netdissect_options *,
357                             const struct pcap_pkthdr *,const u_char *);
358 extern u_int netanalyzer_if_print(netdissect_options *,
359                                   const struct pcap_pkthdr *,const u_char *);
360 extern u_int netanalyzer_transparent_if_print(netdissect_options *,
361                                               const struct pcap_pkthdr *,
362                                               const u_char *);
363 
364 extern int ethertype_print(netdissect_options *,u_short, const u_char *,
365 			     u_int, u_int);
366 
367 /* stuff that has not yet been rototiled */
368 #if 0
369 extern void ascii_print(netdissect_options *,u_int);
370 extern void hex_and_ascii_print_with_offset(netdissect_options *,const char *,
371 				    u_int, u_int);
372 extern void hex_and_ascii_print(netdissect_options *,const char *, u_int);
373 extern void hex_print_with_offset(netdissect_options *,const char *,
374 				  u_int, u_int);
375 extern void hex_print(netdissect_options *,const char *, u_int);
376 extern void telnet_print(netdissect_options *,const u_char *, u_int);
377 extern int llc_print(netdissect_options *,
378 		     const u_char *, u_int, u_int, const u_char *,
379 		     const u_char *, u_short *);
380 extern void aarp_print(netdissect_options *,const u_char *, u_int);
381 extern void atalk_print(netdissect_options *,const u_char *, u_int);
382 extern void atm_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
383 extern void bootp_print(netdissect_options *,const u_char *,
384 			u_int, u_short, u_short);
385 extern void bgp_print(netdissect_options *,const u_char *, int);
386 extern void bxxp_print(netdissect_options *,const u_char *, u_int);
387 extern void chdlc_if_print(u_char *user, const struct pcap_pkthdr *h,
388 			   register const u_char *p);
389 extern void chdlc_print(netdissect_options *ndo,
390 			register const u_char *p, u_int length, u_int caplen);
391 extern void cisco_autorp_print(netdissect_options *,
392 			       const u_char *, u_int);
393 extern void cnfp_print(netdissect_options *,const u_char *cp,
394 		       u_int len, const u_char *bp);
395 extern void decnet_print(netdissect_options *,const u_char *,
396 			 u_int, u_int);
397 extern void default_print(netdissect_options *,const u_char *, u_int);
398 extern void dvmrp_print(netdissect_options *,const u_char *, u_int);
399 extern void egp_print(netdissect_options *,const u_char *, u_int,
400 		      const u_char *);
401 
402 extern void arcnet_if_print(u_char*,const struct pcap_pkthdr *,const u_char *);
403 extern void token_if_print(u_char *,const struct pcap_pkthdr *,const u_char *);
404 extern void fddi_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
405 
406 extern void gre_print(netdissect_options *,const u_char *, u_int);
407 extern void icmp_print(netdissect_options *,const u_char *, u_int,
408 		       const u_char *);
409 extern void hsrp_print(netdissect_options *ndo,
410 		       register const u_char *bp, register u_int len);
411 extern void ieee802_11_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
412 extern void igmp_print(netdissect_options *,
413 		       register const u_char *, u_int);
414 extern void igrp_print(netdissect_options *,const u_char *, u_int,
415 		       const u_char *);
416 extern int nextproto4_cksum(const struct ip *, const u_int8_t *, u_int, u_int);
417 extern void ipN_print(netdissect_options *,const u_char *, u_int);
418 extern void ipx_print(netdissect_options *,const u_char *, u_int);
419 extern void isoclns_print(netdissect_options *,const u_char *,
420 			  u_int, u_int, const u_char *,	const u_char *);
421 extern void krb_print(netdissect_options *,const u_char *, u_int);
422 extern void llap_print(netdissect_options *,const u_char *, u_int);
423 extern const char *linkaddr_string(netdissect_options *ndo,
424 				   const u_char *ep, const unsigned int len);
425 extern void ltalk_if_print(netdissect_options *ndo,
426 			   u_char *user, const struct pcap_pkthdr *h,
427 			   const u_char *p);
428 extern void mpls_print(netdissect_options *ndo,
429 		       const u_char *bp, u_int length);
430 extern void msdp_print(netdissect_options *ndo,
431 		       const unsigned char *sp, u_int length);
432 extern void nfsreply_print(netdissect_options *,const u_char *,
433 			   u_int, const u_char *);
434 extern void nfsreq_print(netdissect_options *,const u_char *,
435 			 u_int, const u_char *);
436 extern void ns_print(netdissect_options *,const u_char *, u_int);
437 extern void ntp_print(netdissect_options *,const u_char *, u_int);
438 extern void null_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
439 extern void ospf_print(netdissect_options *,const u_char *,
440 		       u_int, const u_char *);
441 extern void pimv1_print(netdissect_options *,const u_char *, u_int);
442 extern void mobile_print(netdissect_options *,const u_char *, u_int);
443 extern void pim_print(netdissect_options *,const u_char *, u_int, u_int);
444 extern void pppoe_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
445 extern void pppoe_print(netdissect_options *,const u_char *, u_int);
446 extern void ppp_print(netdissect_options *,
447 		      register const u_char *, u_int);
448 
449 extern void ppp_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
450 extern void ppp_hdlc_if_print(u_char *,
451 			      const struct pcap_pkthdr *, const u_char *);
452 extern void ppp_bsdos_if_print(u_char *,
453 			       const struct pcap_pkthdr *, const u_char *);
454 
455 extern int vjc_print(netdissect_options *,register const char *,
456 		     register u_int, u_short);
457 
458 extern void raw_if_print(u_char *,
459 			 const struct pcap_pkthdr *, const u_char *);
460 
461 extern void rip_print(netdissect_options *,const u_char *, u_int);
462 extern void rpki_rtr_print(netdissect_options *,const u_char *, u_int);
463 
464 extern void sctp_print(netdissect_options *ndo,
465 		       const u_char *bp, const u_char *bp2,
466 		       u_int sctpPacketLength);
467 
468 extern void sl_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
469 
470 extern void lane_if_print(u_char *,const struct pcap_pkthdr *,const u_char *);
471 extern void cip_if_print(u_char *,const struct pcap_pkthdr *,const u_char *);
472 extern void sl_bsdos_if_print(u_char *,
473 			      const struct pcap_pkthdr *, const u_char *);
474 extern void sll_if_print(u_char *,
475 			 const struct pcap_pkthdr *, const u_char *);
476 
477 extern void snmp_print(netdissect_options *,const u_char *, u_int);
478 extern void sunrpcrequest_print(netdissect_options *,const u_char *,
479 				u_int, const u_char *);
480 extern void tcp_print(netdissect_options *,const u_char *, u_int,
481 		      const u_char *, int);
482 extern void tftp_print(netdissect_options *,const u_char *, u_int);
483 extern void timed_print(netdissect_options *,const u_char *, u_int);
484 extern void udp_print(netdissect_options *,const u_char *, u_int,
485 		      const u_char *, int);
486 extern void wb_print(netdissect_options *,const void *, u_int);
487 extern int ah_print(netdissect_options *,register const u_char *,
488 		    register const u_char *);
489 extern void esp_print_decodesecret(netdissect_options *ndo);
490 extern int ipcomp_print(netdissect_options *,register const u_char *,
491 			register const u_char *, int *);
492 extern void rx_print(netdissect_options *,register const u_char *,
493 		     int, int, int, u_char *);
494 extern void netbeui_print(netdissect_options *,u_short,
495 			  const u_char *, int);
496 extern void ipx_netbios_print(netdissect_options *,const u_char *, u_int);
497 extern void nbt_tcp_print(netdissect_options *,const u_char *, int);
498 extern void nbt_udp137_print(netdissect_options *,
499 			     const u_char *data, int);
500 extern void nbt_udp138_print(netdissect_options *,
501 			     const u_char *data, int);
502 extern char *smb_errstr(netdissect_options *,int, int);
503 extern const char *nt_errstr(netdissect_options *, u_int32_t);
504 extern void print_data(netdissect_options *,const unsigned char *, int);
505 extern void l2tp_print(netdissect_options *,const u_char *, u_int);
506 extern void lcp_print(netdissect_options *,const u_char *, u_int);
507 extern void vrrp_print(netdissect_options *,const u_char *bp,
508 		       u_int len, int ttl);
509 extern void carp_print(netdissect_options *,const u_char *bp,
510 		       u_int len, int ttl);
511 extern void cdp_print(netdissect_options *,const u_char *,
512 		      u_int, u_int, const u_char *, const u_char *);
513 extern void stp_print(netdissect_options *,const u_char *p, u_int length);
514 extern void radius_print(netdissect_options *,const u_char *, u_int);
515 extern void lwres_print(netdissect_options *,const u_char *, u_int);
516 extern void pptp_print(netdissect_options *,const u_char *, u_int);
517 #endif
518 
519 extern u_int ipnet_if_print(netdissect_options *,const struct pcap_pkthdr *, const u_char *);
520 extern u_int ppi_if_print(netdissect_options *,const struct pcap_pkthdr *, const u_char *);
521 extern u_int nflog_if_print(netdissect_options *,const struct pcap_pkthdr *, const u_char *);
522 extern u_int ieee802_15_4_if_print(netdissect_options *,const struct pcap_pkthdr *, const u_char *);
523 
524 #ifdef INET6
525 extern void ip6_print(netdissect_options *,const u_char *, u_int);
526 #if 0
527 extern void ip6_opt_print(netdissect_options *,const u_char *, int);
528 extern int nextproto6_cksum(const struct ip6_hdr *, const u_int8_t *, u_int, u_int);
529 extern int hbhopt_print(netdissect_options *,const u_char *);
530 extern int dstopt_print(netdissect_options *,const u_char *);
531 extern int frag6_print(netdissect_options *,const u_char *,
532 		       const u_char *);
533 extern void icmp6_print(netdissect_options *,const u_char *,
534 			const u_char *);
535 extern void ripng_print(netdissect_options *,const u_char *, int);
536 extern int rt6_print(netdissect_options *,const u_char *, const u_char *);
537 extern void ospf6_print(netdissect_options *,const u_char *, u_int);
538 extern void dhcp6_print(netdissect_options *,const u_char *,
539 			u_int, u_int16_t, u_int16_t);
540 
541 extern void zephyr_print(netdissect_options * ndo,
542 			 const u_char *cp, int length);
543 #endif /* 0 */
544 
545 #endif /*INET6*/
546 
547 #if 0
548 struct cksum_vec {
549 	const u_int8_t	*ptr;
550 	int		len;
551 };
552 extern u_int16_t in_cksum(const struct cksum_vec *, int);
553 extern u_int16_t in_cksum_shouldbe(u_int16_t, u_int16_t);
554 #endif
555 
556 extern void esp_print_decodesecret(netdissect_options *ndo);
557 extern int esp_print_decrypt_buffer_by_ikev2(netdissect_options *ndo,
558 					     int initiator,
559 					     u_char spii[8], u_char spir[8],
560 					     u_char *buf, u_char *end);
561 
562 
563 extern void geonet_print(netdissect_options *ndo,const u_char *eth_hdr,const u_char *geo_pck, u_int len);
564 extern void calm_fast_print(netdissect_options *ndo,const u_char *eth_hdr,const u_char *calm_pck, u_int len);
565 
566 #endif  /* netdissect_h */
567