| 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 1.13 2003/11/16 09:36:31 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 "ospf6.h" |
| 43 | |
| 44 | struct bits { |
| 45 | u_int32_t bit; |
| 46 | const char *str; |
| 47 | }; |
| 48 | |
| 49 | static const struct bits ospf6_option_bits[] = { |
| 50 | { OSPF6_OPTION_V6, "V6" }, |
| 51 | { OSPF6_OPTION_E, "E" }, |
| 52 | { OSPF6_OPTION_MC, "MC" }, |
| 53 | { OSPF6_OPTION_N, "N" }, |
| 54 | { OSPF6_OPTION_R, "R" }, |
| 55 | { OSPF6_OPTION_DC, "DC" }, |
| 56 | { 0, NULL } |
| 57 | }; |
| 58 | |
| 59 | static const struct bits ospf6_rla_flag_bits[] = { |
| 60 | { RLA_FLAG_B, "B" }, |
| 61 | { RLA_FLAG_E, "E" }, |
| 62 | { RLA_FLAG_V, "V" }, |
| 63 | { RLA_FLAG_W, "W" }, |
| 64 | { 0, NULL } |
| 65 | }; |
| 66 | |
| 67 | static const struct bits ospf6_asla_flag_bits[] = { |
| 68 | { ASLA_FLAG_EXTERNAL, "E" }, |
| 69 | { ASLA_FLAG_FWDADDR, "F" }, |
| 70 | { ASLA_FLAG_ROUTETAG, "T" }, |
| 71 | { 0, NULL } |
| 72 | }; |
| 73 | |
| 74 | static struct tok type2str[] = { |
| 75 | { OSPF_TYPE_UMD, "umd" }, |
| 76 | { OSPF_TYPE_HELLO, "hello" }, |
| 77 | { OSPF_TYPE_DB, "dd" }, |
| 78 | { OSPF_TYPE_LSR, "ls_req" }, |
| 79 | { OSPF_TYPE_LSU, "ls_upd" }, |
| 80 | { OSPF_TYPE_LSA, "ls_ack" }, |
| 81 | { 0, NULL } |
| 82 | }; |
| 83 | |
| 84 | static char tstr[] = " [|ospf]"; |
| 85 | |
| 86 | #ifdef WIN32 |
| 87 | #define inline __inline |
| 88 | #endif /* WIN32 */ |
| 89 | |
| 90 | /* Forwards */ |
| 91 | static inline void ospf6_print_seqage(u_int32_t, time_t); |
| 92 | static inline void ospf6_print_bits(const struct bits *, u_char); |
| 93 | static void ospf6_print_ls_type(u_int, const rtrid_t *, |
| 94 | const rtrid_t *, const char *); |
| 95 | static int ospf6_print_lshdr(const struct lsa_hdr *); |
| 96 | static int ospf6_print_lsa(const struct lsa *); |
| 97 | static int ospf6_decode_v3(const struct ospf6hdr *, const u_char *); |
| 98 | |
| 99 | static inline void |
| 100 | ospf6_print_seqage(register u_int32_t seq, register time_t us) |
| 101 | { |
| 102 | register time_t sec = us % 60; |
| 103 | register time_t mins = (us / 60) % 60; |
| 104 | register time_t hour = us / 3600; |
| 105 | |
| 106 | printf(" S %X age ", seq); |
| 107 | if (hour) |
| 108 | printf("%u:%02u:%02u", |
| 109 | (u_int32_t) hour, (u_int32_t) mins, (u_int32_t) sec); |
| 110 | else if (mins) |
| 111 | printf("%u:%02u", (u_int32_t) mins, (u_int32_t) sec); |
| 112 | else |
| 113 | printf("%u", (u_int32_t) sec); |
| 114 | } |
| 115 | |
| 116 | |
| 117 | static inline void |
| 118 | ospf6_print_bits(register const struct bits *bp, register u_char options) |
| 119 | { |
| 120 | register char sep = ' '; |
| 121 | |
| 122 | do { |
| 123 | if (options & bp->bit) { |
| 124 | printf("%c%s", sep, bp->str); |
| 125 | sep = '/'; |
| 126 | } |
| 127 | } while ((++bp)->bit); |
| 128 | } |
| 129 | |
| 130 | static void |
| 131 | ospf6_print_ls_type(register u_int ls_type, |
| 132 | register const rtrid_t *ls_stateid, |
| 133 | register const rtrid_t *ls_router, register const char *fmt) |
| 134 | { |
| 135 | const char *scope; |
| 136 | |
| 137 | switch (ls_type & LS_SCOPE_MASK) { |
| 138 | case LS_SCOPE_LINKLOCAL: |
| 139 | scope = "linklocal-"; |
| 140 | break; |
| 141 | case LS_SCOPE_AREA: |
| 142 | scope = "area-"; |
| 143 | break; |
| 144 | case LS_SCOPE_AS: |
| 145 | scope = "AS-"; |
| 146 | break; |
| 147 | default: |
| 148 | scope = ""; |
| 149 | break; |
| 150 | } |
| 151 | |
| 152 | switch (ls_type & LS_TYPE_MASK) { |
| 153 | case LS_TYPE_ROUTER: |
| 154 | printf(" %srtr %s", scope, ipaddr_string(ls_router)); |
| 155 | break; |
| 156 | |
| 157 | case LS_TYPE_NETWORK: |
| 158 | printf(" %snet dr %s if %s", scope, |
| 159 | ipaddr_string(ls_router), |
| 160 | ipaddr_string(ls_stateid)); |
| 161 | break; |
| 162 | |
| 163 | case LS_TYPE_INTER_AP: |
| 164 | printf(" %sinter-area-prefix %s abr %s", scope, |
| 165 | ipaddr_string(ls_stateid), |
| 166 | ipaddr_string(ls_router)); |
| 167 | break; |
| 168 | |
| 169 | case LS_TYPE_INTER_AR: |
| 170 | printf(" %sinter-area-router %s rtr %s", scope, |
| 171 | ipaddr_string(ls_router), |
| 172 | ipaddr_string(ls_stateid)); |
| 173 | break; |
| 174 | |
| 175 | case LS_TYPE_ASE: |
| 176 | printf(" %sase %s asbr %s", scope, |
| 177 | ipaddr_string(ls_stateid), |
| 178 | ipaddr_string(ls_router)); |
| 179 | break; |
| 180 | |
| 181 | case LS_TYPE_GROUP: |
| 182 | printf(" %sgroup %s rtr %s", scope, |
| 183 | ipaddr_string(ls_stateid), |
| 184 | ipaddr_string(ls_router)); |
| 185 | break; |
| 186 | |
| 187 | case LS_TYPE_TYPE7: |
| 188 | printf(" %stype7 %s rtr %s", scope, |
| 189 | ipaddr_string(ls_stateid), |
| 190 | ipaddr_string(ls_router)); |
| 191 | break; |
| 192 | |
| 193 | case LS_TYPE_LINK: |
| 194 | printf(" %slink %s rtr %s", scope, |
| 195 | ipaddr_string(ls_stateid), |
| 196 | ipaddr_string(ls_router)); |
| 197 | break; |
| 198 | |
| 199 | case LS_TYPE_INTRA_AP: |
| 200 | printf(" %sintra-area-prefix %s rtr %s", scope, |
| 201 | ipaddr_string(ls_stateid), |
| 202 | ipaddr_string(ls_router)); |
| 203 | break; |
| 204 | |
| 205 | default: |
| 206 | printf(" %s", scope); |
| 207 | printf(fmt, ls_type); |
| 208 | break; |
| 209 | } |
| 210 | |
| 211 | } |
| 212 | |
| 213 | static int |
| 214 | ospf6_print_lshdr(register const struct lsa_hdr *lshp) |
| 215 | { |
| 216 | |
| 217 | TCHECK(lshp->ls_type); |
| 218 | printf(" {"); /* } (ctags) */ |
| 219 | |
| 220 | TCHECK(lshp->ls_seq); |
| 221 | ospf6_print_seqage(EXTRACT_32BITS(&lshp->ls_seq), EXTRACT_16BITS(&lshp->ls_age)); |
| 222 | ospf6_print_ls_type(EXTRACT_16BITS(&lshp->ls_type), &lshp->ls_stateid, |
| 223 | &lshp->ls_router, "ls_type %d"); |
| 224 | |
| 225 | return (0); |
| 226 | trunc: |
| 227 | return (1); |
| 228 | } |
| 229 | |
| 230 | static int |
| 231 | ospf6_print_lsaprefix(register const struct lsa_prefix *lsapp) |
| 232 | { |
| 233 | u_int k; |
| 234 | struct in6_addr prefix; |
| 235 | |
| 236 | TCHECK(*lsapp); |
| 237 | k = (lsapp->lsa_p_len + 31) / 32; |
| 238 | if (k * 4 > sizeof(struct in6_addr)) { |
| 239 | printf("??prefixlen %d??", lsapp->lsa_p_len); |
| 240 | goto trunc; |
| 241 | } |
| 242 | memset(&prefix, 0, sizeof(prefix)); |
| 243 | memcpy(&prefix, lsapp->lsa_p_prefix, k * 4); |
| 244 | printf(" %s/%d", ip6addr_string(&prefix), |
| 245 | lsapp->lsa_p_len); |
| 246 | if (lsapp->lsa_p_opt) |
| 247 | printf("(opt=%x)", lsapp->lsa_p_opt); |
| 248 | if (lsapp->lsa_p_mbz) |
| 249 | printf("(mbz=%x)", EXTRACT_16BITS(&lsapp->lsa_p_mbz)); /* XXX */ |
| 250 | return sizeof(*lsapp) - 4 + k * 4; |
| 251 | |
| 252 | trunc: |
| 253 | return -1; |
| 254 | } |
| 255 | |
| 256 | |
| 257 | /* |
| 258 | * Print a single link state advertisement. If truncated return 1, else 0. |
| 259 | */ |
| 260 | static int |
| 261 | ospf6_print_lsa(register const struct lsa *lsap) |
| 262 | { |
| 263 | register const u_char *ls_end, *ls_opt; |
| 264 | register const struct rlalink *rlp; |
| 265 | #if 0 |
| 266 | register const struct tos_metric *tosp; |
| 267 | #endif |
| 268 | register const rtrid_t *ap; |
| 269 | #if 0 |
| 270 | register const struct aslametric *almp; |
| 271 | register const struct mcla *mcp; |
| 272 | #endif |
| 273 | register const struct llsa *llsap; |
| 274 | register const struct lsa_prefix *lsapp; |
| 275 | #if 0 |
| 276 | register const u_int32_t *lp; |
| 277 | #endif |
| 278 | register u_int j; |
| 279 | register int k; |
| 280 | u_int32_t flags32; |
| 281 | |
| 282 | if (ospf6_print_lshdr(&lsap->ls_hdr)) |
| 283 | return (1); |
| 284 | TCHECK(lsap->ls_hdr.ls_length); |
| 285 | ls_end = (u_char *)lsap + EXTRACT_16BITS(&lsap->ls_hdr.ls_length); |
| 286 | switch (EXTRACT_16BITS(&lsap->ls_hdr.ls_type)) { |
| 287 | case LS_TYPE_ROUTER | LS_SCOPE_AREA: |
| 288 | TCHECK(lsap->lsa_un.un_rla.rla_flags); |
| 289 | ospf6_print_bits(ospf6_rla_flag_bits, |
| 290 | lsap->lsa_un.un_rla.rla_flags); |
| 291 | TCHECK(lsap->lsa_un.un_rla.rla_options); |
| 292 | ospf6_print_bits(ospf6_option_bits, |
| 293 | EXTRACT_32BITS(&lsap->lsa_un.un_rla.rla_options)); |
| 294 | |
| 295 | TCHECK(lsap->lsa_un.un_rla.rla_link); |
| 296 | rlp = lsap->lsa_un.un_rla.rla_link; |
| 297 | while (rlp + sizeof(*rlp) <= (struct rlalink *)ls_end) { |
| 298 | TCHECK(*rlp); |
| 299 | printf(" {"); /* } (ctags) */ |
| 300 | switch (rlp->link_type) { |
| 301 | |
| 302 | case RLA_TYPE_VIRTUAL: |
| 303 | printf(" virt"); |
| 304 | /* Fall through */ |
| 305 | |
| 306 | case RLA_TYPE_ROUTER: |
| 307 | printf(" nbrid %s nbrif %s if %s", |
| 308 | ipaddr_string(&rlp->link_nrtid), |
| 309 | ipaddr_string(&rlp->link_nifid), |
| 310 | ipaddr_string(&rlp->link_ifid)); |
| 311 | break; |
| 312 | |
| 313 | case RLA_TYPE_TRANSIT: |
| 314 | printf(" dr %s drif %s if %s", |
| 315 | ipaddr_string(&rlp->link_nrtid), |
| 316 | ipaddr_string(&rlp->link_nifid), |
| 317 | ipaddr_string(&rlp->link_ifid)); |
| 318 | break; |
| 319 | |
| 320 | default: |
| 321 | /* { (ctags) */ |
| 322 | printf(" ??RouterLinksType 0x%02x?? }", |
| 323 | rlp->link_type); |
| 324 | return (0); |
| 325 | } |
| 326 | printf(" metric %d", EXTRACT_16BITS(&rlp->link_metric)); |
| 327 | /* { (ctags) */ |
| 328 | printf(" }"); |
| 329 | rlp++; |
| 330 | } |
| 331 | break; |
| 332 | |
| 333 | case LS_TYPE_NETWORK | LS_SCOPE_AREA: |
| 334 | TCHECK(lsap->lsa_un.un_nla.nla_options); |
| 335 | ospf6_print_bits(ospf6_option_bits, |
| 336 | EXTRACT_32BITS(&lsap->lsa_un.un_nla.nla_options)); |
| 337 | printf(" rtrs"); |
| 338 | ap = lsap->lsa_un.un_nla.nla_router; |
| 339 | while ((u_char *)ap < ls_end) { |
| 340 | TCHECK(*ap); |
| 341 | printf(" %s", ipaddr_string(ap)); |
| 342 | ++ap; |
| 343 | } |
| 344 | break; |
| 345 | |
| 346 | case LS_TYPE_INTER_AP | LS_SCOPE_AREA: |
| 347 | TCHECK(lsap->lsa_un.un_inter_ap.inter_ap_metric); |
| 348 | printf(" metric %u", |
| 349 | EXTRACT_32BITS(&lsap->lsa_un.un_inter_ap.inter_ap_metric) & SLA_MASK_METRIC); |
| 350 | lsapp = lsap->lsa_un.un_inter_ap.inter_ap_prefix; |
| 351 | while (lsapp + sizeof(lsapp) <= (struct lsa_prefix *)ls_end) { |
| 352 | k = ospf6_print_lsaprefix(lsapp); |
| 353 | if (k) |
| 354 | goto trunc; |
| 355 | lsapp = (struct lsa_prefix *)(((u_char *)lsapp) + k); |
| 356 | } |
| 357 | break; |
| 358 | case LS_SCOPE_AS | LS_TYPE_ASE: |
| 359 | TCHECK(lsap->lsa_un.un_asla.asla_metric); |
| 360 | flags32 = EXTRACT_32BITS(&lsap->lsa_un.un_asla.asla_metric); |
| 361 | ospf6_print_bits(ospf6_asla_flag_bits, flags32); |
| 362 | printf(" metric %u", |
| 363 | EXTRACT_32BITS(&lsap->lsa_un.un_asla.asla_metric) & |
| 364 | ASLA_MASK_METRIC); |
| 365 | lsapp = lsap->lsa_un.un_asla.asla_prefix; |
| 366 | k = ospf6_print_lsaprefix(lsapp); |
| 367 | if (k < 0) |
| 368 | goto trunc; |
| 369 | if ((ls_opt = (u_char *)(((u_char *)lsapp) + k)) < ls_end) { |
| 370 | struct in6_addr *fwdaddr6; |
| 371 | |
| 372 | if ((flags32 & ASLA_FLAG_FWDADDR) != 0) { |
| 373 | fwdaddr6 = (struct in6_addr *)ls_opt; |
| 374 | TCHECK(*fwdaddr6); |
| 375 | printf(" forward %s", |
| 376 | ip6addr_string(fwdaddr6)); |
| 377 | |
| 378 | ls_opt += sizeof(struct in6_addr); |
| 379 | } |
| 380 | |
| 381 | if ((flags32 & ASLA_FLAG_ROUTETAG) != 0) { |
| 382 | TCHECK(*(u_int32_t *)ls_opt); |
| 383 | printf(" tag %s", |
| 384 | ipaddr_string((u_int32_t *)ls_opt)); |
| 385 | |
| 386 | ls_opt += sizeof(u_int32_t); |
| 387 | } |
| 388 | |
| 389 | if (lsapp->lsa_p_mbz) { |
| 390 | TCHECK(*(u_int32_t *)ls_opt); |
| 391 | printf(" RefLSID: %s", |
| 392 | ipaddr_string((u_int32_t *)ls_opt)); |
| 393 | |
| 394 | ls_opt += sizeof(u_int32_t); |
| 395 | } |
| 396 | } |
| 397 | break; |
| 398 | #if 0 |
| 399 | case LS_TYPE_SUM_ABR: |
| 400 | TCHECK(lsap->lsa_un.un_sla.sla_tosmetric); |
| 401 | lp = lsap->lsa_un.un_sla.sla_tosmetric; |
| 402 | while ((u_char *)lp < ls_end) { |
| 403 | register u_int32_t ul; |
| 404 | |
| 405 | TCHECK(*lp); |
| 406 | ul = EXTRACT_32BITS(lp); |
| 407 | printf(" tos %d metric %d", |
| 408 | (ul & SLA_MASK_TOS) >> SLA_SHIFT_TOS, |
| 409 | ul & SLA_MASK_METRIC); |
| 410 | ++lp; |
| 411 | } |
| 412 | break; |
| 413 | |
| 414 | case LS_TYPE_GROUP: |
| 415 | /* Multicast extensions as of 23 July 1991 */ |
| 416 | mcp = lsap->lsa_un.un_mcla; |
| 417 | while ((u_char *)mcp < ls_end) { |
| 418 | TCHECK(mcp->mcla_vid); |
| 419 | switch (EXTRACT_32BITS(&mcp->mcla_vtype)) { |
| 420 | |
| 421 | case MCLA_VERTEX_ROUTER: |
| 422 | printf(" rtr rtrid %s", |
| 423 | ipaddr_string(&mcp->mcla_vid)); |
| 424 | break; |
| 425 | |
| 426 | case MCLA_VERTEX_NETWORK: |
| 427 | printf(" net dr %s", |
| 428 | ipaddr_string(&mcp->mcla_vid)); |
| 429 | break; |
| 430 | |
| 431 | default: |
| 432 | printf(" ??VertexType %u??", |
| 433 | EXTRACT_32BITS(&mcp->mcla_vtype)); |
| 434 | break; |
| 435 | } |
| 436 | ++mcp; |
| 437 | } |
| 438 | #endif |
| 439 | |
| 440 | case LS_TYPE_LINK: |
| 441 | /* Link LSA */ |
| 442 | llsap = &lsap->lsa_un.un_llsa; |
| 443 | TCHECK(llsap->llsa_options); |
| 444 | ospf6_print_bits(ospf6_option_bits, EXTRACT_32BITS(&llsap->llsa_options)); |
| 445 | TCHECK(llsap->llsa_nprefix); |
| 446 | printf(" pri %d lladdr %s npref %d", llsap->llsa_priority, |
| 447 | ip6addr_string(&llsap->llsa_lladdr), |
| 448 | EXTRACT_32BITS(&llsap->llsa_nprefix)); |
| 449 | lsapp = llsap->llsa_prefix; |
| 450 | for (j = 0; j < EXTRACT_32BITS(&llsap->llsa_nprefix); j++) { |
| 451 | k = ospf6_print_lsaprefix(lsapp); |
| 452 | if (k) |
| 453 | goto trunc; |
| 454 | lsapp = (struct lsa_prefix *)(((u_char *)lsapp) + k); |
| 455 | } |
| 456 | break; |
| 457 | |
| 458 | case LS_TYPE_INTRA_AP | LS_SCOPE_AREA: |
| 459 | /* Intra-Area-Prefix LSA */ |
| 460 | TCHECK(lsap->lsa_un.un_intra_ap.intra_ap_rtid); |
| 461 | ospf6_print_ls_type( |
| 462 | EXTRACT_16BITS(&lsap->lsa_un.un_intra_ap.intra_ap_lstype), |
| 463 | &lsap->lsa_un.un_intra_ap.intra_ap_lsid, |
| 464 | &lsap->lsa_un.un_intra_ap.intra_ap_rtid, |
| 465 | "LinkStateType %d"); |
| 466 | TCHECK(lsap->lsa_un.un_intra_ap.intra_ap_nprefix); |
| 467 | printf(" npref %d", |
| 468 | EXTRACT_16BITS(&lsap->lsa_un.un_intra_ap.intra_ap_nprefix)); |
| 469 | |
| 470 | lsapp = lsap->lsa_un.un_intra_ap.intra_ap_prefix; |
| 471 | for (j = 0; |
| 472 | j < EXTRACT_16BITS(&lsap->lsa_un.un_intra_ap.intra_ap_nprefix); |
| 473 | j++) { |
| 474 | k = ospf6_print_lsaprefix(lsapp); |
| 475 | if (k) |
| 476 | goto trunc; |
| 477 | lsapp = (struct lsa_prefix *)(((u_char *)lsapp) + k); |
| 478 | } |
| 479 | break; |
| 480 | |
| 481 | default: |
| 482 | printf(" ??LinkStateType 0x%04x??", |
| 483 | EXTRACT_16BITS(&lsap->ls_hdr.ls_type)); |
| 484 | } |
| 485 | |
| 486 | /* { (ctags) */ |
| 487 | fputs(" }", stdout); |
| 488 | return (0); |
| 489 | trunc: |
| 490 | fputs(" }", stdout); |
| 491 | return (1); |
| 492 | } |
| 493 | |
| 494 | static int |
| 495 | ospf6_decode_v3(register const struct ospf6hdr *op, |
| 496 | register const u_char *dataend) |
| 497 | { |
| 498 | register const rtrid_t *ap; |
| 499 | register const struct lsr *lsrp; |
| 500 | register const struct lsa_hdr *lshp; |
| 501 | register const struct lsa *lsap; |
| 502 | register char sep; |
| 503 | register int i; |
| 504 | |
| 505 | switch (op->ospf6_type) { |
| 506 | |
| 507 | case OSPF_TYPE_UMD: |
| 508 | /* |
| 509 | * Rob Coltun's special monitoring packets; |
| 510 | * do nothing |
| 511 | */ |
| 512 | break; |
| 513 | |
| 514 | case OSPF_TYPE_HELLO: |
| 515 | if (vflag) { |
| 516 | TCHECK(op->ospf6_hello.hello_deadint); |
| 517 | ospf6_print_bits(ospf6_option_bits, |
| 518 | EXTRACT_32BITS(&op->ospf6_hello.hello_options)); |
| 519 | printf(" ifid %s pri %d int %d dead %u", |
| 520 | ipaddr_string(&op->ospf6_hello.hello_ifid), |
| 521 | op->ospf6_hello.hello_priority, |
| 522 | EXTRACT_16BITS(&op->ospf6_hello.hello_helloint), |
| 523 | EXTRACT_16BITS(&op->ospf6_hello.hello_deadint)); |
| 524 | } |
| 525 | TCHECK(op->ospf6_hello.hello_dr); |
| 526 | if (op->ospf6_hello.hello_dr != 0) |
| 527 | printf(" dr %s", |
| 528 | ipaddr_string(&op->ospf6_hello.hello_dr)); |
| 529 | TCHECK(op->ospf6_hello.hello_bdr); |
| 530 | if (op->ospf6_hello.hello_bdr != 0) |
| 531 | printf(" bdr %s", |
| 532 | ipaddr_string(&op->ospf6_hello.hello_bdr)); |
| 533 | if (vflag) { |
| 534 | printf(" nbrs"); |
| 535 | ap = op->ospf6_hello.hello_neighbor; |
| 536 | while ((u_char *)ap < dataend) { |
| 537 | TCHECK(*ap); |
| 538 | printf(" %s", ipaddr_string(ap)); |
| 539 | ++ap; |
| 540 | } |
| 541 | } |
| 542 | break; /* HELLO */ |
| 543 | |
| 544 | case OSPF_TYPE_DB: |
| 545 | TCHECK(op->ospf6_db.db_options); |
| 546 | ospf6_print_bits(ospf6_option_bits, |
| 547 | EXTRACT_32BITS(&op->ospf6_db.db_options)); |
| 548 | sep = ' '; |
| 549 | TCHECK(op->ospf6_db.db_flags); |
| 550 | if (op->ospf6_db.db_flags & OSPF6_DB_INIT) { |
| 551 | printf("%cI", sep); |
| 552 | sep = '/'; |
| 553 | } |
| 554 | if (op->ospf6_db.db_flags & OSPF6_DB_MORE) { |
| 555 | printf("%cM", sep); |
| 556 | sep = '/'; |
| 557 | } |
| 558 | if (op->ospf6_db.db_flags & OSPF6_DB_MASTER) { |
| 559 | printf("%cMS", sep); |
| 560 | sep = '/'; |
| 561 | } |
| 562 | TCHECK(op->ospf6_db.db_seq); |
| 563 | printf(" mtu %u S %X", EXTRACT_16BITS(&op->ospf6_db.db_mtu), |
| 564 | EXTRACT_32BITS(&op->ospf6_db.db_seq)); |
| 565 | |
| 566 | if (vflag) { |
| 567 | /* Print all the LS adv's */ |
| 568 | lshp = op->ospf6_db.db_lshdr; |
| 569 | |
| 570 | while (!ospf6_print_lshdr(lshp)) { |
| 571 | /* { (ctags) */ |
| 572 | printf(" }"); |
| 573 | ++lshp; |
| 574 | } |
| 575 | } |
| 576 | break; |
| 577 | |
| 578 | case OSPF_TYPE_LSR: |
| 579 | if (vflag) { |
| 580 | lsrp = op->ospf6_lsr; |
| 581 | while ((u_char *)lsrp < dataend) { |
| 582 | TCHECK(*lsrp); |
| 583 | printf(" {"); /* } (ctags) */ |
| 584 | ospf6_print_ls_type(EXTRACT_16BITS(&lsrp->ls_type), |
| 585 | &lsrp->ls_stateid, |
| 586 | &lsrp->ls_router, |
| 587 | "LinkStateType %d"); |
| 588 | /* { (ctags) */ |
| 589 | printf(" }"); |
| 590 | ++lsrp; |
| 591 | } |
| 592 | } |
| 593 | break; |
| 594 | |
| 595 | case OSPF_TYPE_LSU: |
| 596 | if (vflag) { |
| 597 | lsap = op->ospf6_lsu.lsu_lsa; |
| 598 | TCHECK(op->ospf6_lsu.lsu_count); |
| 599 | i = EXTRACT_32BITS(&op->ospf6_lsu.lsu_count); |
| 600 | while (i--) { |
| 601 | if (ospf6_print_lsa(lsap)) |
| 602 | goto trunc; |
| 603 | lsap = (struct lsa *)((u_char *)lsap + |
| 604 | EXTRACT_16BITS(&lsap->ls_hdr.ls_length)); |
| 605 | } |
| 606 | } |
| 607 | break; |
| 608 | |
| 609 | |
| 610 | case OSPF_TYPE_LSA: |
| 611 | if (vflag) { |
| 612 | lshp = op->ospf6_lsa.lsa_lshdr; |
| 613 | |
| 614 | while (!ospf6_print_lshdr(lshp)) { |
| 615 | /* { (ctags) */ |
| 616 | printf(" }"); |
| 617 | ++lshp; |
| 618 | } |
| 619 | } |
| 620 | break; |
| 621 | |
| 622 | default: |
| 623 | printf("v3 type %d", op->ospf6_type); |
| 624 | break; |
| 625 | } |
| 626 | return (0); |
| 627 | trunc: |
| 628 | return (1); |
| 629 | } |
| 630 | |
| 631 | void |
| 632 | ospf6_print(register const u_char *bp, register u_int length) |
| 633 | { |
| 634 | register const struct ospf6hdr *op; |
| 635 | register const u_char *dataend; |
| 636 | register const char *cp; |
| 637 | |
| 638 | op = (struct ospf6hdr *)bp; |
| 639 | |
| 640 | /* If the type is valid translate it, or just print the type */ |
| 641 | /* value. If it's not valid, say so and return */ |
| 642 | TCHECK(op->ospf6_type); |
| 643 | cp = tok2str(type2str, "type%d", op->ospf6_type); |
| 644 | printf("OSPFv%d-%s %d:", op->ospf6_version, cp, length); |
| 645 | if (*cp == 't') |
| 646 | return; |
| 647 | |
| 648 | TCHECK(op->ospf6_len); |
| 649 | if (length != EXTRACT_16BITS(&op->ospf6_len)) { |
| 650 | printf(" [len %d]", EXTRACT_16BITS(&op->ospf6_len)); |
| 651 | return; |
| 652 | } |
| 653 | dataend = bp + length; |
| 654 | |
| 655 | /* Print the routerid if it is not the same as the source */ |
| 656 | TCHECK(op->ospf6_routerid); |
| 657 | printf(" rtrid %s", ipaddr_string(&op->ospf6_routerid)); |
| 658 | |
| 659 | TCHECK(op->ospf6_areaid); |
| 660 | if (op->ospf6_areaid != 0) |
| 661 | printf(" area %s", ipaddr_string(&op->ospf6_areaid)); |
| 662 | else |
| 663 | printf(" backbone"); |
| 664 | TCHECK(op->ospf6_instanceid); |
| 665 | if (op->ospf6_instanceid) |
| 666 | printf(" instance %u", op->ospf6_instanceid); |
| 667 | |
| 668 | /* Do rest according to version. */ |
| 669 | switch (op->ospf6_version) { |
| 670 | |
| 671 | case 3: |
| 672 | /* ospf version 3 */ |
| 673 | if (ospf6_decode_v3(op, dataend)) |
| 674 | goto trunc; |
| 675 | break; |
| 676 | |
| 677 | default: |
| 678 | printf(" ospf [version %d]", op->ospf6_version); |
| 679 | break; |
| 680 | } /* end switch on version */ |
| 681 | |
| 682 | return; |
| 683 | trunc: |
| 684 | fputs(tstr, stdout); |
| 685 | } |