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kernel/msdosfs: Add pathconf(3) support for FILESIZEBITS.
[dragonfly.git] / contrib / tcpdump / print-ospf6.c
blobfb62b3968597f64103e65dc994ae873191ba0968
1 /*
2 * Copyright (c) 1992, 1993, 1994, 1995, 1996, 1997
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that: (1) source code distributions
7 * retain the above copyright notice and this paragraph in its entirety, (2)
8 * distributions including binary code include the above copyright notice and
9 * this paragraph in its entirety in the documentation or other materials
10 * provided with the distribution, and (3) all advertising materials mentioning
11 * features or use of this software display the following acknowledgement:
12 * ``This product includes software developed by the University of California,
13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
14 * the University nor the names of its contributors may be used to endorse
15 * or promote products derived from this software without specific prior
16 * written permission.
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
20 *
21 * OSPF support contributed by Jeffrey Honig (jch@mitchell.cit.cornell.edu)
22 */
23
24 #ifndef lint
25 static const char rcsid[] _U_ =
26 "@(#) $Header: /tcpdump/master/tcpdump/print-ospf6.c,v 1.15 2006-09-13 06:31:11 guy Exp $ (LBL)";
27 #endif
28
29 #ifdef HAVE_CONFIG_H
30 #include "config.h"
31 #endif
32
33 #include <tcpdump-stdinc.h>
34
35 #include <stdio.h>
36 #include <string.h>
37
38 #include "interface.h"
39 #include "addrtoname.h"
40 #include "extract.h"
41
42 #include "ospf.h"
43 #include "ospf6.h"
44
45 static const struct tok ospf6_option_values[] = {
46 { OSPF6_OPTION_V6, "V6" },
47 { OSPF6_OPTION_E, "External" },
48 { OSPF6_OPTION_MC, "Multicast" },
49 { OSPF6_OPTION_N, "NSSA" },
50 { OSPF6_OPTION_R, "Router" },
51 { OSPF6_OPTION_DC, "Demand Circuit" },
52 { 0, NULL }
53 };
54
55 static const struct tok ospf6_rla_flag_values[] = {
56 { RLA_FLAG_B, "ABR" },
57 { RLA_FLAG_E, "External" },
58 { RLA_FLAG_V, "Virtual-Link Endpoint" },
59 { RLA_FLAG_W, "Wildcard Receiver" },
60 { RLA_FLAG_N, "NSSA Translator" },
61 { 0, NULL }
62 };
63
64 static const struct tok ospf6_asla_flag_values[] = {
65 { ASLA_FLAG_EXTERNAL, "External Type 2" },
66 { ASLA_FLAG_FWDADDR, "Fforwarding" },
67 { ASLA_FLAG_ROUTETAG, "Tag" },
68 { 0, NULL }
69 };
70
71 static struct tok ospf6_type_values[] = {
72 { OSPF_TYPE_HELLO, "Hello" },
73 { OSPF_TYPE_DD, "Database Description" },
74 { OSPF_TYPE_LS_REQ, "LS-Request" },
75 { OSPF_TYPE_LS_UPDATE, "LS-Update" },
76 { OSPF_TYPE_LS_ACK, "LS-Ack" },
77 { 0, NULL }
78 };
79
80 static struct tok ospf6_lsa_values[] = {
81 { LS_TYPE_ROUTER, "Router" },
82 { LS_TYPE_NETWORK, "Network" },
83 { LS_TYPE_INTER_AP, "Inter-Area Prefix" },
84 { LS_TYPE_INTER_AR, "Inter-Area Router" },
85 { LS_TYPE_ASE, "External" },
86 { LS_TYPE_GROUP, "Multicast Group" },
87 { LS_TYPE_NSSA, "NSSA" },
88 { LS_TYPE_LINK, "Link" },
89 { LS_TYPE_INTRA_AP, "Intra-Area Prefix" },
90 { LS_TYPE_INTRA_ATE, "Intra-Area TE" },
91 { LS_TYPE_GRACE, "Grace" },
92 { 0, NULL }
93 };
94
95 static struct tok ospf6_ls_scope_values[] = {
96 { LS_SCOPE_LINKLOCAL, "Link Local" },
97 { LS_SCOPE_AREA, "Area Local" },
98 { LS_SCOPE_AS, "Domain Wide" },
99 { 0, NULL }
100 };
101
102 static struct tok ospf6_dd_flag_values[] = {
103 { OSPF6_DB_INIT, "Init" },
104 { OSPF6_DB_MORE, "More" },
105 { OSPF6_DB_MASTER, "Master" },
106 { 0, NULL }
107 };
108
109 static struct tok ospf6_lsa_prefix_option_values[] = {
110 { LSA_PREFIX_OPT_NU, "No Unicast" },
111 { LSA_PREFIX_OPT_LA, "Local address" },
112 { LSA_PREFIX_OPT_MC, "Multicast" },
113 { LSA_PREFIX_OPT_P, "Propagate" },
114 { LSA_PREFIX_OPT_DN, "Down" },
115 { 0, NULL }
116 };
117
118 static char tstr[] = " [|ospf3]";
119
120 #ifdef WIN32
121 #define inline __inline
122 #endif /* WIN32 */
123
124 /* Forwards */
125 static void ospf6_print_ls_type(u_int, const rtrid_t *);
126 static int ospf6_print_lshdr(const struct lsa6_hdr *);
127 static int ospf6_print_lsa(const struct lsa6 *);
128 static int ospf6_decode_v3(const struct ospf6hdr *, const u_char *);
129
130
131 static void
132 ospf6_print_ls_type(register u_int ls_type, register const rtrid_t *ls_stateid)
133 {
134 printf("\n\t %s LSA (%d), %s Scope%s, LSA-ID %s",
135 tok2str(ospf6_lsa_values, "Unknown", ls_type & LS_TYPE_MASK),
136 ls_type & LS_TYPE_MASK,
137 tok2str(ospf6_ls_scope_values, "Unknown", ls_type & LS_SCOPE_MASK),
138 ls_type &0x8000 ? ", transitive" : "", /* U-bit */
139 ipaddr_string(ls_stateid));
140 }
141
142 static int
143 ospf6_print_lshdr(register const struct lsa6_hdr *lshp)
144 {
145
146 TCHECK(lshp->ls_type);
147 TCHECK(lshp->ls_seq);
148
149 printf("\n\t Advertising Router %s, seq 0x%08x, age %us, length %u",
150 ipaddr_string(&lshp->ls_router),
151 EXTRACT_32BITS(&lshp->ls_seq),
152 EXTRACT_16BITS(&lshp->ls_age),
153 EXTRACT_16BITS(&lshp->ls_length)-(u_int)sizeof(struct lsa6_hdr));
154
155 ospf6_print_ls_type(EXTRACT_16BITS(&lshp->ls_type), &lshp->ls_stateid);
156
157 return (0);
158 trunc:
159 return (1);
160 }
161
162 static int
163 ospf6_print_lsaprefix(const u_int8_t *tptr, u_int lsa_length)
164 {
165 const struct lsa6_prefix *lsapp = (struct lsa6_prefix *)tptr;
166 u_int wordlen;
167 struct in6_addr prefix;
168
169 if (lsa_length < sizeof (*lsapp) - 4)
170 goto trunc;
171 lsa_length -= sizeof (*lsapp) - 4;
172 TCHECK2(*lsapp, sizeof (*lsapp) - 4);
173 wordlen = (lsapp->lsa_p_len + 31) / 32;
174 if (wordlen * 4 > sizeof(struct in6_addr)) {
175 printf(" bogus prefixlen /%d", lsapp->lsa_p_len);
176 goto trunc;
177 }
178 if (lsa_length < wordlen * 4)
179 goto trunc;
180 lsa_length -= wordlen * 4;
181 TCHECK2(lsapp->lsa_p_prefix, wordlen * 4);
182 memset(&prefix, 0, sizeof(prefix));
183 memcpy(&prefix, lsapp->lsa_p_prefix, wordlen * 4);
184 printf("\n\t\t%s/%d", ip6addr_string(&prefix),
185 lsapp->lsa_p_len);
186 if (lsapp->lsa_p_opt) {
187 printf(", Options [%s]",
188 bittok2str(ospf6_lsa_prefix_option_values,
189 "none", lsapp->lsa_p_opt));
190 }
191 printf(", metric %u", EXTRACT_16BITS(&lsapp->lsa_p_metric));
192 return sizeof(*lsapp) - 4 + wordlen * 4;
193
194 trunc:
195 return -1;
196 }
197
198
199 /*
200 * Print a single link state advertisement. If truncated return 1, else 0.
201 */
202 static int
203 ospf6_print_lsa(register const struct lsa6 *lsap)
204 {
205 register const struct rlalink6 *rlp;
206 #if 0
207 register const struct tos_metric *tosp;
208 #endif
209 register const rtrid_t *ap;
210 #if 0
211 register const struct aslametric *almp;
212 register const struct mcla *mcp;
213 #endif
214 register const struct llsa *llsap;
215 register const struct lsa6_prefix *lsapp;
216 #if 0
217 register const u_int32_t *lp;
218 #endif
219 register u_int prefixes;
220 register int bytelen;
221 register u_int length, lsa_length;
222 u_int32_t flags32;
223 const u_int8_t *tptr;
224
225 if (ospf6_print_lshdr(&lsap->ls_hdr))
226 return (1);
227 TCHECK(lsap->ls_hdr.ls_length);
228 length = EXTRACT_16BITS(&lsap->ls_hdr.ls_length);
229
230 /*
231 * The LSA length includes the length of the header;
232 * it must have a value that's at least that length.
233 * If it does, find the length of what follows the
234 * header.
235 */
236 if (length < sizeof(struct lsa6_hdr))
237 return (1);
238 lsa_length = length - sizeof(struct lsa6_hdr);
239 tptr = (u_int8_t *)lsap+sizeof(struct lsa6_hdr);
240
241 switch (EXTRACT_16BITS(&lsap->ls_hdr.ls_type)) {
242 case LS_TYPE_ROUTER | LS_SCOPE_AREA:
243 if (lsa_length < sizeof (lsap->lsa_un.un_rla.rla_options))
244 return (1);
245 lsa_length -= sizeof (lsap->lsa_un.un_rla.rla_options);
246 TCHECK(lsap->lsa_un.un_rla.rla_options);
247 printf("\n\t Options [%s]",
248 bittok2str(ospf6_option_values, "none",
249 EXTRACT_32BITS(&lsap->lsa_un.un_rla.rla_options)));
250 printf(", RLA-Flags [%s]",
251 bittok2str(ospf6_rla_flag_values, "none",
252 lsap->lsa_un.un_rla.rla_flags));
253
254 rlp = lsap->lsa_un.un_rla.rla_link;
255 while (lsa_length != 0) {
256 if (lsa_length < sizeof (*rlp))
257 return (1);
258 lsa_length -= sizeof (*rlp);
259 TCHECK(*rlp);
260 switch (rlp->link_type) {
261
262 case RLA_TYPE_VIRTUAL:
263 printf("\n\t Virtual Link: Neighbor Router-ID %s"
264 "\n\t Neighbor Interface-ID %s, Interface %s",
265 ipaddr_string(&rlp->link_nrtid),
266 ipaddr_string(&rlp->link_nifid),
267 ipaddr_string(&rlp->link_ifid));
268 break;
269
270 case RLA_TYPE_ROUTER:
271 printf("\n\t Neighbor Router-ID %s"
272 "\n\t Neighbor Interface-ID %s, Interface %s",
273 ipaddr_string(&rlp->link_nrtid),
274 ipaddr_string(&rlp->link_nifid),
275 ipaddr_string(&rlp->link_ifid));
276 break;
277
278 case RLA_TYPE_TRANSIT:
279 printf("\n\t Neighbor Network-ID %s"
280 "\n\t Neighbor Interface-ID %s, Interface %s",
281 ipaddr_string(&rlp->link_nrtid),
282 ipaddr_string(&rlp->link_nifid),
283 ipaddr_string(&rlp->link_ifid));
284 break;
285
286 default:
287 printf("\n\t Unknown Router Links Type 0x%02x",
288 rlp->link_type);
289 return (0);
290 }
291 printf(", metric %d", EXTRACT_16BITS(&rlp->link_metric));
292 rlp++;
293 }
294 break;
295
296 case LS_TYPE_NETWORK | LS_SCOPE_AREA:
297 if (lsa_length < sizeof (lsap->lsa_un.un_nla.nla_options))
298 return (1);
299 lsa_length -= sizeof (lsap->lsa_un.un_nla.nla_options);
300 TCHECK(lsap->lsa_un.un_nla.nla_options);
301 printf("\n\t Options [%s]",
302 bittok2str(ospf6_option_values, "none",
303 EXTRACT_32BITS(&lsap->lsa_un.un_nla.nla_options)));
304
305 printf("\n\t Connected Routers:");
306 ap = lsap->lsa_un.un_nla.nla_router;
307 while (lsa_length != 0) {
308 if (lsa_length < sizeof (*ap))
309 return (1);
310 lsa_length -= sizeof (*ap);
311 TCHECK(*ap);
312 printf("\n\t\t%s", ipaddr_string(ap));
313 ++ap;
314 }
315 break;
316
317 case LS_TYPE_INTER_AP | LS_SCOPE_AREA:
318 if (lsa_length < sizeof (lsap->lsa_un.un_inter_ap.inter_ap_metric))
319 return (1);
320 lsa_length -= sizeof (lsap->lsa_un.un_inter_ap.inter_ap_metric);
321 TCHECK(lsap->lsa_un.un_inter_ap.inter_ap_metric);
322 printf(", metric %u",
323 EXTRACT_32BITS(&lsap->lsa_un.un_inter_ap.inter_ap_metric) & SLA_MASK_METRIC);
324
325 tptr = (u_int8_t *)lsap->lsa_un.un_inter_ap.inter_ap_prefix;
326 while (lsa_length != 0) {
327 bytelen = ospf6_print_lsaprefix(tptr, lsa_length);
328 if (bytelen < 0)
329 goto trunc;
330 lsa_length -= bytelen;
331 tptr += bytelen;
332 }
333 break;
334
335 case LS_TYPE_ASE | LS_SCOPE_AS:
336 if (lsa_length < sizeof (lsap->lsa_un.un_asla.asla_metric))
337 return (1);
338 lsa_length -= sizeof (lsap->lsa_un.un_asla.asla_metric);
339 TCHECK(lsap->lsa_un.un_asla.asla_metric);
340 flags32 = EXTRACT_32BITS(&lsap->lsa_un.un_asla.asla_metric);
341 printf("\n\t Flags [%s]",
342 bittok2str(ospf6_asla_flag_values, "none", flags32));
343 printf(" metric %u",
344 EXTRACT_32BITS(&lsap->lsa_un.un_asla.asla_metric) &
345 ASLA_MASK_METRIC);
346
347 tptr = (u_int8_t *)lsap->lsa_un.un_asla.asla_prefix;
348 lsapp = (struct lsa6_prefix *)tptr;
349 bytelen = ospf6_print_lsaprefix(tptr, lsa_length);
350 if (bytelen < 0)
351 goto trunc;
352 lsa_length -= bytelen;
353 tptr += bytelen;
354
355 if ((flags32 & ASLA_FLAG_FWDADDR) != 0) {
356 struct in6_addr *fwdaddr6;
357
358 fwdaddr6 = (struct in6_addr *)tptr;
359 if (lsa_length < sizeof (*fwdaddr6))
360 return (1);
361 lsa_length -= sizeof (*fwdaddr6);
362 TCHECK(*fwdaddr6);
363 printf(" forward %s",
364 ip6addr_string(fwdaddr6));
365 tptr += sizeof(*fwdaddr6);
366 }
367
368 if ((flags32 & ASLA_FLAG_ROUTETAG) != 0) {
369 if (lsa_length < sizeof (u_int32_t))
370 return (1);
371 lsa_length -= sizeof (u_int32_t);
372 TCHECK(*(u_int32_t *)tptr);
373 printf(" tag %s",
374 ipaddr_string((u_int32_t *)tptr));
375 tptr += sizeof(u_int32_t);
376 }
377
378 if (lsapp->lsa_p_metric) {
379 if (lsa_length < sizeof (u_int32_t))
380 return (1);
381 lsa_length -= sizeof (u_int32_t);
382 TCHECK(*(u_int32_t *)tptr);
383 printf(" RefLSID: %s",
384 ipaddr_string((u_int32_t *)tptr));
385 tptr += sizeof(u_int32_t);
386 }
387 break;
388
389 case LS_TYPE_LINK:
390 /* Link LSA */
391 llsap = &lsap->lsa_un.un_llsa;
392 if (lsa_length < sizeof (llsap->llsa_priandopt))
393 return (1);
394 lsa_length -= sizeof (llsap->llsa_priandopt);
395 TCHECK(llsap->llsa_priandopt);
396 printf("\n\t Options [%s]",
397 bittok2str(ospf6_option_values, "none",
398 EXTRACT_32BITS(&llsap->llsa_options)));
399
400 if (lsa_length < sizeof (llsap->llsa_lladdr) + sizeof (llsap->llsa_nprefix))
401 return (1);
402 lsa_length -= sizeof (llsap->llsa_lladdr) + sizeof (llsap->llsa_nprefix);
403 prefixes = EXTRACT_32BITS(&llsap->llsa_nprefix);
404 printf("\n\t Priority %d, Link-local address %s, Prefixes %d:",
405 llsap->llsa_priority,
406 ip6addr_string(&llsap->llsa_lladdr),
407 prefixes);
408
409 tptr = (u_int8_t *)llsap->llsa_prefix;
410 while (prefixes > 0) {
411 bytelen = ospf6_print_lsaprefix(tptr, lsa_length);
412 if (bytelen < 0)
413 goto trunc;
414 prefixes--;
415 lsa_length -= bytelen;
416 tptr += bytelen;
417 }
418 break;
419
420 case LS_TYPE_INTRA_AP | LS_SCOPE_AREA:
421 /* Intra-Area-Prefix LSA */
422 if (lsa_length < sizeof (lsap->lsa_un.un_intra_ap.intra_ap_rtid))
423 return (1);
424 lsa_length -= sizeof (lsap->lsa_un.un_intra_ap.intra_ap_rtid);
425 TCHECK(lsap->lsa_un.un_intra_ap.intra_ap_rtid);
426 ospf6_print_ls_type(
427 EXTRACT_16BITS(&lsap->lsa_un.un_intra_ap.intra_ap_lstype),
428 &lsap->lsa_un.un_intra_ap.intra_ap_lsid);
429
430 if (lsa_length < sizeof (lsap->lsa_un.un_intra_ap.intra_ap_nprefix))
431 return (1);
432 lsa_length -= sizeof (lsap->lsa_un.un_intra_ap.intra_ap_nprefix);
433 TCHECK(lsap->lsa_un.un_intra_ap.intra_ap_nprefix);
434 prefixes = EXTRACT_16BITS(&lsap->lsa_un.un_intra_ap.intra_ap_nprefix);
435 printf("\n\t Prefixes %d:", prefixes);
436
437 tptr = (u_int8_t *)lsap->lsa_un.un_intra_ap.intra_ap_prefix;
438 while (prefixes > 0) {
439 bytelen = ospf6_print_lsaprefix(tptr, lsa_length);
440 if (bytelen < 0)
441 goto trunc;
442 prefixes--;
443 lsa_length -= bytelen;
444 tptr += bytelen;
445 }
446 break;
447
448 case LS_TYPE_GRACE | LS_SCOPE_LINKLOCAL:
449 if (ospf_print_grace_lsa(tptr, lsa_length) == -1) {
450 return 1;
451 }
452 break;
453
454 case LS_TYPE_INTRA_ATE | LS_SCOPE_LINKLOCAL:
455 if (ospf_print_te_lsa(tptr, lsa_length) == -1) {
456 return 1;
457 }
458 break;
459
460 default:
461 if(!print_unknown_data(tptr,
462 "\n\t ",
463 lsa_length)) {
464 return (1);
465 }
466 break;
467 }
468
469 return (0);
470 trunc:
471 return (1);
472 }
473
474 static int
475 ospf6_decode_v3(register const struct ospf6hdr *op,
476 register const u_char *dataend)
477 {
478 register const rtrid_t *ap;
479 register const struct lsr6 *lsrp;
480 register const struct lsa6_hdr *lshp;
481 register const struct lsa6 *lsap;
482 register int i;
483
484 switch (op->ospf6_type) {
485
486 case OSPF_TYPE_HELLO:
487 printf("\n\tOptions [%s]",
488 bittok2str(ospf6_option_values, "none",
489 EXTRACT_32BITS(&op->ospf6_hello.hello_options)));
490
491 TCHECK(op->ospf6_hello.hello_deadint);
492 printf("\n\t Hello Timer %us, Dead Timer %us, Interface-ID %s, Priority %u",
493 EXTRACT_16BITS(&op->ospf6_hello.hello_helloint),
494 EXTRACT_16BITS(&op->ospf6_hello.hello_deadint),
495 ipaddr_string(&op->ospf6_hello.hello_ifid),
496 op->ospf6_hello.hello_priority);
497
498 TCHECK(op->ospf6_hello.hello_dr);
499 if (op->ospf6_hello.hello_dr != 0)
500 printf("\n\t Designated Router %s",
501 ipaddr_string(&op->ospf6_hello.hello_dr));
502 TCHECK(op->ospf6_hello.hello_bdr);
503 if (op->ospf6_hello.hello_bdr != 0)
504 printf(", Backup Designated Router %s",
505 ipaddr_string(&op->ospf6_hello.hello_bdr));
506 if (vflag) {
507 printf("\n\t Neighbor List:");
508 ap = op->ospf6_hello.hello_neighbor;
509 while ((u_char *)ap < dataend) {
510 TCHECK(*ap);
511 printf("\n\t %s", ipaddr_string(ap));
512 ++ap;
513 }
514 }
515 break; /* HELLO */
516
517 case OSPF_TYPE_DD:
518 TCHECK(op->ospf6_db.db_options);
519 printf("\n\tOptions [%s]",
520 bittok2str(ospf6_option_values, "none",
521 EXTRACT_32BITS(&op->ospf6_db.db_options)));
522 TCHECK(op->ospf6_db.db_flags);
523 printf(", DD Flags [%s]",
524 bittok2str(ospf6_dd_flag_values,"none",op->ospf6_db.db_flags));
525
526 TCHECK(op->ospf6_db.db_seq);
527 printf(", MTU %u, DD-Sequence 0x%08x",
528 EXTRACT_16BITS(&op->ospf6_db.db_mtu),
529 EXTRACT_32BITS(&op->ospf6_db.db_seq));
530
531 /* Print all the LS adv's */
532 lshp = op->ospf6_db.db_lshdr;
533 while (!ospf6_print_lshdr(lshp)) {
534 ++lshp;
535 }
536 break;
537
538 case OSPF_TYPE_LS_REQ:
539 if (vflag) {
540 lsrp = op->ospf6_lsr;
541 while ((u_char *)lsrp < dataend) {
542 TCHECK(*lsrp);
543 printf("\n\t Advertising Router %s",
544 ipaddr_string(&lsrp->ls_router));
545 ospf6_print_ls_type(EXTRACT_16BITS(&lsrp->ls_type),
546 &lsrp->ls_stateid);
547 ++lsrp;
548 }
549 }
550 break;
551
552 case OSPF_TYPE_LS_UPDATE:
553 if (vflag) {
554 lsap = op->ospf6_lsu.lsu_lsa;
555 TCHECK(op->ospf6_lsu.lsu_count);
556 i = EXTRACT_32BITS(&op->ospf6_lsu.lsu_count);
557 while (i--) {
558 if (ospf6_print_lsa(lsap))
559 goto trunc;
560 lsap = (struct lsa6 *)((u_char *)lsap +
561 EXTRACT_16BITS(&lsap->ls_hdr.ls_length));
562 }
563 }
564 break;
565
566
567 case OSPF_TYPE_LS_ACK:
568 if (vflag) {
569 lshp = op->ospf6_lsa.lsa_lshdr;
570
571 while (!ospf6_print_lshdr(lshp)) {
572 ++lshp;
573 }
574 }
575 break;
576
577 default:
578 break;
579 }
580 return (0);
581 trunc:
582 return (1);
583 }
584
585 void
586 ospf6_print(register const u_char *bp, register u_int length)
587 {
588 register const struct ospf6hdr *op;
589 register const u_char *dataend;
590 register const char *cp;
591
592 op = (struct ospf6hdr *)bp;
593
594 /* If the type is valid translate it, or just print the type */
595 /* value. If it's not valid, say so and return */
596 TCHECK(op->ospf6_type);
597 cp = tok2str(ospf6_type_values, "unknown LS-type", op->ospf6_type);
598 printf("OSPFv%u, %s, length %d", op->ospf6_version, cp, length);
599 if (*cp == 'u') {
600 return;
601 }
602
603 if(!vflag) { /* non verbose - so lets bail out here */
604 return;
605 }
606
607 TCHECK(op->ospf6_len);
608 if (length != EXTRACT_16BITS(&op->ospf6_len)) {
609 printf(" [len %d]", EXTRACT_16BITS(&op->ospf6_len));
610 return;
611 }
612 dataend = bp + length;
613
614 /* Print the routerid if it is not the same as the source */
615 TCHECK(op->ospf6_routerid);
616 printf("\n\tRouter-ID %s", ipaddr_string(&op->ospf6_routerid));
617
618 TCHECK(op->ospf6_areaid);
619 if (op->ospf6_areaid != 0)
620 printf(", Area %s", ipaddr_string(&op->ospf6_areaid));
621 else
622 printf(", Backbone Area");
623 TCHECK(op->ospf6_instanceid);
624 if (op->ospf6_instanceid)
625 printf(", Instance %u", op->ospf6_instanceid);
626
627 /* Do rest according to version. */
628 switch (op->ospf6_version) {
629
630 case 3:
631 /* ospf version 3 */
632 if (ospf6_decode_v3(op, dataend))
633 goto trunc;
634 break;
635
636 default:
637 printf(" ospf [version %d]", op->ospf6_version);
638 break;
639 } /* end switch on version */
640
641 return;
642 trunc:
643 fputs(tstr, stdout);
644 }
DragonFly BSD