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IP packet information printing from NFLOG packet
[tcpdump] / netdissect.h
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
198 #ifndef min
199 #define min(a,b) ((a)>(b)?(b):(a))
200 #endif
201 #ifndef max
202 #define max(a,b) ((b)>(a)?(b):(a))
203 #endif
204
205 /*
206 * Maximum snapshot length. This should be enough to capture the full
207 * packet on most network interfaces.
208 *
209 * XXX - could it be larger? If so, should it? Some applications might
210 * use the snapshot length in a savefile header to control the size of
211 * the buffer they allocate, so a size of, say, 2^31-1 might not work
212 * well.
213 */
214 #define MAXIMUM_SNAPLEN 65535
215
216 /*
217 * The default snapshot length is the maximum.
218 */
219 #define DEFAULT_SNAPLEN MAXIMUM_SNAPLEN
220
221 #define ESRC(ep) ((ep)->ether_shost)
222 #define EDST(ep) ((ep)->ether_dhost)
223
224 #ifndef NTOHL
225 #define NTOHL(x) (x) = ntohl(x)
226 #define NTOHS(x) (x) = ntohs(x)
227 #define HTONL(x) (x) = htonl(x)
228 #define HTONS(x) (x) = htons(x)
229 #endif
230
231 /*
232 * True if "l" bytes of "var" were captured.
233 *
234 * The "ndo->ndo_snapend - (l) <= ndo->ndo_snapend" checks to make sure
235 * "l" isn't so large that "ndo->ndo_snapend - (l)" underflows.
236 *
237 * The check is for <= rather than < because "l" might be 0.
238 */
239 #define ND_TTEST2(var, l) (ndo->ndo_snapend - (l) <= ndo->ndo_snapend && \
240 (const u_char *)&(var) <= ndo->ndo_snapend - (l))
241
242 /* True if "var" was captured */
243 #define ND_TTEST(var) ND_TTEST2(var, sizeof(var))
244
245 /* Bail if "l" bytes of "var" were not captured */
246 #define ND_TCHECK2(var, l) if (!ND_TTEST2(var, l)) goto trunc
247
248 /* Bail if "var" was not captured */
249 #define ND_TCHECK(var) ND_TCHECK2(var, sizeof(var))
250
251 #define ND_PRINT(STUFF) (*ndo->ndo_printf)STUFF
252 #define ND_DEFAULTPRINT(ap, length) (*ndo->ndo_default_print)(ndo, ap, length)
253
254 #if 0
255 extern void ts_print(netdissect_options *ipdo,
256 const struct timeval *);
257 extern void relts_print(int);
258 #endif
259
260 extern int fn_print(const u_char *, const u_char *);
261 extern int fn_printn(const u_char *, u_int, const u_char *);
262 extern const char *tok2str(const struct tok *, const char *, int);
263
264 extern void wrapup(int);
265
266 #if 0
267 extern char *read_infile(netdissect_options *, char *);
268 extern char *copy_argv(netdissect_options *, char **);
269 #endif
270
271 extern void safeputchar(int);
272 extern void safeputs(const char *, int);
273
274 #define PLURAL_SUFFIX(n) \
275 (((n) != 1) ? "s" : "")
276
277 #if 0
278 extern const char *isonsap_string(netdissect_options *, const u_char *);
279 extern const char *protoid_string(netdissect_options *, const u_char *);
280 extern const char *dnname_string(netdissect_options *, u_short);
281 extern const char *dnnum_string(netdissect_options *, u_short);
282 #endif
283
284 /* The printer routines. */
285
286 #include <pcap.h>
287
288 typedef u_int (*if_ndo_printer)(struct netdissect_options *ndo,
289 const struct pcap_pkthdr *, const u_char *);
290 typedef u_int (*if_printer)(const struct pcap_pkthdr *, const u_char *);
291
292 extern if_ndo_printer lookup_ndo_printer(int);
293 extern if_printer lookup_printer(int);
294
295 extern void eap_print(netdissect_options *,const u_char *, u_int);
296 extern int esp_print(netdissect_options *,
297 register const u_char *bp, int len, register const u_char *bp2,
298 int *nhdr, int *padlen);
299 extern void arp_print(netdissect_options *,const u_char *, u_int, u_int);
300 extern void tipc_print(netdissect_options *, const u_char *, u_int, u_int);
301 extern void msnlb_print(netdissect_options *, const u_char *);
302 extern void icmp6_print(netdissect_options *ndo, const u_char *,
303 u_int, const u_char *, int);
304 extern void isakmp_print(netdissect_options *,const u_char *,
305 u_int, const u_char *);
306 extern void isakmp_rfc3948_print(netdissect_options *,const u_char *,
307 u_int, const u_char *);
308 extern void ip_print(netdissect_options *,const u_char *, u_int);
309 extern void ip_print_inner(netdissect_options *ndo,
310 const u_char *bp, u_int length, u_int nh,
311 const u_char *bp2);
312 extern void rrcp_print(netdissect_options *,const u_char *, u_int);
313
314 extern void ether_print(netdissect_options *,
315 const u_char *, u_int, u_int,
316 void (*)(netdissect_options *, const u_char *),
317 const u_char *);
318
319 extern u_int ether_if_print(netdissect_options *,
320 const struct pcap_pkthdr *,const u_char *);
321 extern u_int netanalyzer_if_print(netdissect_options *,
322 const struct pcap_pkthdr *,const u_char *);
323 extern u_int netanalyzer_transparent_if_print(netdissect_options *,
324 const struct pcap_pkthdr *,
325 const u_char *);
326
327 extern int ethertype_print(netdissect_options *,u_short, const u_char *,
328 u_int, u_int);
329
330 /* stuff that has not yet been rototiled */
331 #if 0
332 extern void ascii_print(netdissect_options *,u_int);
333 extern void hex_and_ascii_print_with_offset(netdissect_options *,const char *,
334 u_int, u_int);
335 extern void hex_and_ascii_print(netdissect_options *,const char *, u_int);
336 extern void hex_print_with_offset(netdissect_options *,const char *,
337 u_int, u_int);
338 extern void hex_print(netdissect_options *,const char *, u_int);
339 extern void telnet_print(netdissect_options *,const u_char *, u_int);
340 extern int llc_print(netdissect_options *,
341 const u_char *, u_int, u_int, const u_char *,
342 const u_char *, u_short *);
343 extern void aarp_print(netdissect_options *,const u_char *, u_int);
344 extern void atalk_print(netdissect_options *,const u_char *, u_int);
345 extern void atm_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
346 extern void bootp_print(netdissect_options *,const u_char *,
347 u_int, u_short, u_short);
348 extern void bgp_print(netdissect_options *,const u_char *, int);
349 extern void bxxp_print(netdissect_options *,const u_char *, u_int);
350 extern void chdlc_if_print(u_char *user, const struct pcap_pkthdr *h,
351 register const u_char *p);
352 extern void chdlc_print(netdissect_options *ndo,
353 register const u_char *p, u_int length, u_int caplen);
354 extern void cisco_autorp_print(netdissect_options *,
355 const u_char *, u_int);
356 extern void cnfp_print(netdissect_options *,const u_char *cp,
357 u_int len, const u_char *bp);
358 extern void decnet_print(netdissect_options *,const u_char *,
359 u_int, u_int);
360 extern void default_print(netdissect_options *,const u_char *, u_int);
361 extern void dvmrp_print(netdissect_options *,const u_char *, u_int);
362 extern void egp_print(netdissect_options *,const u_char *, u_int,
363 const u_char *);
364
365 extern void arcnet_if_print(u_char*,const struct pcap_pkthdr *,const u_char *);
366 extern void token_if_print(u_char *,const struct pcap_pkthdr *,const u_char *);
367 extern void fddi_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
368
369 extern void gre_print(netdissect_options *,const u_char *, u_int);
370 extern void icmp_print(netdissect_options *,const u_char *, u_int,
371 const u_char *);
372 extern void hsrp_print(netdissect_options *ndo,
373 register const u_char *bp, register u_int len);
374 extern void ieee802_11_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
375 extern void igmp_print(netdissect_options *,
376 register const u_char *, u_int);
377 extern void igrp_print(netdissect_options *,const u_char *, u_int,
378 const u_char *);
379 extern int nextproto4_cksum(const struct ip *, const u_int8_t *, u_int, u_int);
380 extern void ipN_print(netdissect_options *,const u_char *, u_int);
381 extern void ipx_print(netdissect_options *,const u_char *, u_int);
382 extern void isoclns_print(netdissect_options *,const u_char *,
383 u_int, u_int, const u_char *, const u_char *);
384 extern void krb_print(netdissect_options *,const u_char *, u_int);
385 extern void llap_print(netdissect_options *,const u_char *, u_int);
386 extern const char *linkaddr_string(netdissect_options *ndo,
387 const u_char *ep, const unsigned int len);
388 extern void ltalk_if_print(netdissect_options *ndo,
389 u_char *user, const struct pcap_pkthdr *h,
390 const u_char *p);
391 extern void mpls_print(netdissect_options *ndo,
392 const u_char *bp, u_int length);
393 extern void msdp_print(netdissect_options *ndo,
394 const unsigned char *sp, u_int length);
395 extern void nfsreply_print(netdissect_options *,const u_char *,
396 u_int, const u_char *);
397 extern void nfsreq_print(netdissect_options *,const u_char *,
398 u_int, const u_char *);
399 extern void ns_print(netdissect_options *,const u_char *, u_int);
400 extern void ntp_print(netdissect_options *,const u_char *, u_int);
401 extern void null_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
402 extern void ospf_print(netdissect_options *,const u_char *,
403 u_int, const u_char *);
404 extern void pimv1_print(netdissect_options *,const u_char *, u_int);
405 extern void mobile_print(netdissect_options *,const u_char *, u_int);
406 extern void pim_print(netdissect_options *,const u_char *, u_int, u_int);
407 extern void pppoe_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
408 extern void pppoe_print(netdissect_options *,const u_char *, u_int);
409 extern void ppp_print(netdissect_options *,
410 register const u_char *, u_int);
411
412 extern void ppp_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
413 extern void ppp_hdlc_if_print(u_char *,
414 const struct pcap_pkthdr *, const u_char *);
415 extern void ppp_bsdos_if_print(u_char *,
416 const struct pcap_pkthdr *, const u_char *);
417
418 extern int vjc_print(netdissect_options *,register const char *,
419 register u_int, u_short);
420
421 extern void raw_if_print(u_char *,
422 const struct pcap_pkthdr *, const u_char *);
423
424 extern void rip_print(netdissect_options *,const u_char *, u_int);
425 extern void rpki_rtr_print(netdissect_options *,const u_char *, u_int);
426
427 extern void sctp_print(netdissect_options *ndo,
428 const u_char *bp, const u_char *bp2,
429 u_int sctpPacketLength);
430
431 extern void sl_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
432
433 extern void lane_if_print(u_char *,const struct pcap_pkthdr *,const u_char *);
434 extern void cip_if_print(u_char *,const struct pcap_pkthdr *,const u_char *);
435 extern void sl_bsdos_if_print(u_char *,
436 const struct pcap_pkthdr *, const u_char *);
437 extern void sll_if_print(u_char *,
438 const struct pcap_pkthdr *, const u_char *);
439
440 extern void snmp_print(netdissect_options *,const u_char *, u_int);
441 extern void sunrpcrequest_print(netdissect_options *,const u_char *,
442 u_int, const u_char *);
443 extern void tcp_print(netdissect_options *,const u_char *, u_int,
444 const u_char *, int);
445 extern void tftp_print(netdissect_options *,const u_char *, u_int);
446 extern void timed_print(netdissect_options *,const u_char *, u_int);
447 extern void udp_print(netdissect_options *,const u_char *, u_int,
448 const u_char *, int);
449 extern void wb_print(netdissect_options *,const void *, u_int);
450 extern int ah_print(netdissect_options *,register const u_char *,
451 register const u_char *);
452 extern void esp_print_decodesecret(netdissect_options *ndo);
453 extern int ipcomp_print(netdissect_options *,register const u_char *,
454 register const u_char *, int *);
455 extern void rx_print(netdissect_options *,register const u_char *,
456 int, int, int, u_char *);
457 extern void netbeui_print(netdissect_options *,u_short,
458 const u_char *, int);
459 extern void ipx_netbios_print(netdissect_options *,const u_char *, u_int);
460 extern void nbt_tcp_print(netdissect_options *,const u_char *, int);
461 extern void nbt_udp137_print(netdissect_options *,
462 const u_char *data, int);
463 extern void nbt_udp138_print(netdissect_options *,
464 const u_char *data, int);
465 extern char *smb_errstr(netdissect_options *,int, int);
466 extern const char *nt_errstr(netdissect_options *, u_int32_t);
467 extern void print_data(netdissect_options *,const unsigned char *, int);
468 extern void l2tp_print(netdissect_options *,const u_char *, u_int);
469 extern void lcp_print(netdissect_options *,const u_char *, u_int);
470 extern void vrrp_print(netdissect_options *,const u_char *bp,
471 u_int len, int ttl);
472 extern void carp_print(netdissect_options *,const u_char *bp,
473 u_int len, int ttl);
474 extern void cdp_print(netdissect_options *,const u_char *,
475 u_int, u_int, const u_char *, const u_char *);
476 extern void stp_print(netdissect_options *,const u_char *p, u_int length);
477 extern void radius_print(netdissect_options *,const u_char *, u_int);
478 extern void lwres_print(netdissect_options *,const u_char *, u_int);
479 extern void pptp_print(netdissect_options *,const u_char *, u_int);
480 #endif
481
482 extern u_int ipnet_if_print(netdissect_options *,const struct pcap_pkthdr *, const u_char *);
483 extern u_int ppi_if_print(netdissect_options *,const struct pcap_pkthdr *, const u_char *);
484
485 #ifdef HAVE_LINUX_NETFILTER_NFNETLINK_LOG_H
486 extern u_int nflog_if_print(netdissect_options *,const struct pcap_pkthdr *, const u_char *);
487 #endif
488
489 extern u_int ieee802_15_4_if_print(netdissect_options *,const struct pcap_pkthdr *, const u_char *);
490
491 #ifdef INET6
492 extern void ip6_print(netdissect_options *,const u_char *, u_int);
493 #if 0
494 extern void ip6_opt_print(netdissect_options *,const u_char *, int);
495 extern int nextproto6_cksum(const struct ip6_hdr *, const u_int8_t *, u_int, u_int);
496 extern int hbhopt_print(netdissect_options *,const u_char *);
497 extern int dstopt_print(netdissect_options *,const u_char *);
498 extern int frag6_print(netdissect_options *,const u_char *,
499 const u_char *);
500 extern void icmp6_print(netdissect_options *,const u_char *,
501 const u_char *);
502 extern void ripng_print(netdissect_options *,const u_char *, int);
503 extern int rt6_print(netdissect_options *,const u_char *, const u_char *);
504 extern void ospf6_print(netdissect_options *,const u_char *, u_int);
505 extern void dhcp6_print(netdissect_options *,const u_char *,
506 u_int, u_int16_t, u_int16_t);
507
508 extern void zephyr_print(netdissect_options * ndo,
509 const u_char *cp, int length);
510 #endif /* 0 */
511
512 #endif /*INET6*/
513
514 #if 0
515 struct cksum_vec {
516 const u_int8_t *ptr;
517 int len;
518 };
519 extern u_int16_t in_cksum(const struct cksum_vec *, int);
520 extern u_int16_t in_cksum_shouldbe(u_int16_t, u_int16_t);
521 #endif
522
523 extern void esp_print_decodesecret(netdissect_options *ndo);
524 extern int esp_print_decrypt_buffer_by_ikev2(netdissect_options *ndo,
525 int initiator,
526 u_char spii[8], u_char spir[8],
527 u_char *buf, u_char *end);
528
529
530 extern void geonet_print(netdissect_options *ndo,const u_char *eth_hdr,const u_char *geo_pck, u_int len);
531 extern void calm_fast_print(netdissect_options *ndo,const u_char *eth_hdr,const u_char *calm_pck, u_int len);
532
533 #endif /* netdissect_h */