The Tcpdump Group git mirrors - tcpdump/blob - print-olsr.c

   1 /*
   2  * Copyright (c) 1998-2007 The TCPDUMP project
   3  * Copyright (c) 2009  Florian Forster
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that: (1) source code
   7  * distributions retain the above copyright notice and this paragraph
   8  * in its entirety, and (2) distributions including binary code include
   9  * the above copyright notice and this paragraph in its entirety in
  10  * the documentation or other materials provided with the distribution.
  11  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND
  12  * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
  13  * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  14  * FOR A PARTICULAR PURPOSE.
  15  *
  16  * Optimized Link State Protocl (OLSR) as per rfc3626
  17  *
  18  * Original code by Hannes Gredler <hannes@juniper.net>
  19  * IPv6 additions by Florian Forster <octo at verplant.org>
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include "config.h"
  24 #endif
  25
  26 #include <tcpdump-stdinc.h>
  27
  28 #include <stdio.h>
  29 #include <string.h>
  30
  31 #include "interface.h"
  32 #include "addrtoname.h"
  33 #include "extract.h"
  34 #include "ip.h"
  35
  36 /*
  37  * RFC 3626 common header
  38  *
  39  *  0                   1                   2                   3
  40  *  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
  41  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  42  * |         Packet Length         |    Packet Sequence Number     |
  43  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  44  * |  Message Type |     Vtime     |         Message Size          |
  45  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  46  * |                      Originator Address                       |
  47  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  48  * |  Time To Live |   Hop Count   |    Message Sequence Number    |
  49  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  50  * |                                                               |
  51  * :                            MESSAGE                            :
  52  * |                                                               |
  53  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  54  * |  Message Type |     Vtime     |         Message Size          |
  55  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  56  * |                      Originator Address                       |
  57  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  58  * |  Time To Live |   Hop Count   |    Message Sequence Number    |
  59  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  60  * |                                                               |
  61  * :                            MESSAGE                            :
  62  * |                                                               |
  63  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  64  * :                                                               :
  65  */
  66
  67 struct olsr_common {
  68     u_int8_t packet_len[2];
  69     u_int8_t packet_seq[2];
  70 };
  71
  72 #define OLSR_HELLO_MSG         1 /* rfc3626 */
  73 #define OLSR_TC_MSG            2 /* rfc3626 */
  74 #define OLSR_MID_MSG           3 /* rfc3626 */
  75 #define OLSR_HNA_MSG           4 /* rfc3626 */
  76 #define OLSR_POWERINFO_MSG   128
  77 #define OLSR_NAMESERVICE_MSG 130
  78 #define OLSR_HELLO_LQ_MSG    201 /* LQ extensions olsr.org */
  79 #define OLSR_TC_LQ_MSG       202 /* LQ extensions olsr.org */
  80
  81 static struct tok olsr_msg_values[] = {
  82     { OLSR_HELLO_MSG, "Hello" },
  83     { OLSR_TC_MSG, "TC" },
  84     { OLSR_MID_MSG, "MID" },
  85     { OLSR_HNA_MSG, "HNA" },
  86     { OLSR_POWERINFO_MSG, "Powerinfo" },
  87     { OLSR_NAMESERVICE_MSG, "Nameservice" },
  88     { OLSR_HELLO_LQ_MSG, "Hello-LQ" },
  89     { OLSR_TC_LQ_MSG, "TC-LQ" },
  90     { 0, NULL}
  91 };
  92
  93 struct olsr_msg4 {
  94     u_int8_t msg_type;
  95     u_int8_t vtime;
  96     u_int8_t msg_len[2];
  97     u_int8_t originator[4];
  98     u_int8_t ttl;
  99     u_int8_t hopcount;
 100     u_int8_t msg_seq[2];
 101 };
 102
 103 struct olsr_msg6 {
 104     u_int8_t msg_type;
 105     u_int8_t vtime;
 106     u_int8_t msg_len[2];
 107     u_int8_t originator[16];
 108     u_int8_t ttl;
 109     u_int8_t hopcount;
 110     u_int8_t msg_seq[2];
 111 };
 112
 113 struct olsr_hello {
 114     u_int8_t res[2];
 115     u_int8_t htime;
 116     u_int8_t will;
 117 };
 118
 119 struct olsr_hello_link {
 120     u_int8_t link_code;
 121     u_int8_t res;
 122     u_int8_t len[2];
 123 };
 124
 125 struct olsr_tc {
 126     u_int8_t ans_seq[2];
 127     u_int8_t res[2];
 128 };
 129
 130 struct olsr_hna4 {
 131     u_int8_t network[4];
 132     u_int8_t mask[4];
 133 };
 134
 135 struct olsr_hna6 {
 136     u_int8_t network[16];
 137     u_int8_t mask[16];
 138 };
 139
 140
 141 #define OLSR_EXTRACT_LINK_TYPE(link_code) (link_code & 0x3)
 142 #define OLSR_EXTRACT_NEIGHBOR_TYPE(link_code) (link_code >> 2)
 143
 144 static struct tok olsr_link_type_values[] = {
 145     { 0, "Unspecified" },
 146     { 1, "Asymmetric" },
 147     { 2, "Symmetric" },
 148     { 3, "Lost" },
 149     { 0, NULL}
 150 };
 151
 152 static struct tok olsr_neighbor_type_values[] = {
 153     { 0, "Not-Neighbor" },
 154     { 1, "Symmetric" },
 155     { 2, "Symmetric-MPR" },
 156     { 0, NULL}
 157 };
 158
 159 struct olsr_lq_neighbor4 {
 160     u_int8_t neighbor[4];
 161     u_int8_t link_quality;
 162     u_int8_t neighbor_link_quality;
 163     u_int8_t res[2];
 164 };
 165
 166 struct olsr_lq_neighbor6 {
 167     u_int8_t neighbor[16];
 168     u_int8_t link_quality;
 169     u_int8_t neighbor_link_quality;
 170     u_int8_t res[2];
 171 };
 172
 173 /*
 174  * macro to convert the 8-bit mantissa/exponent to a double float
 175  * taken from olsr.org.
 176  */
 177 #define VTIME_SCALE_FACTOR    0.0625
 178 #define ME_TO_DOUBLE(me) \
 179   (double)(VTIME_SCALE_FACTOR*(1+(double)(me>>4)/16)*(double)(1<<(me&0x0F)))
 180
 181 /*
 182  * print a neighbor list with LQ extensions.
 183  */
 184 static int
 185 olsr_print_lq_neighbor4 (const u_char *msg_data, u_int hello_len)
 186 {
 187     struct olsr_lq_neighbor4 *lq_neighbor;
 188
 189     while (hello_len >= sizeof(struct olsr_lq_neighbor4)) {
 190
 191         lq_neighbor = (struct olsr_lq_neighbor4 *)msg_data;
 192         if (!TTEST(*lq_neighbor))
 193             return (-1);
 194
 195         printf("\n\t      neighbor %s, link-quality %.2lf%%"
 196                ", neighbor-link-quality %.2lf%%",
 197                ipaddr_string(lq_neighbor->neighbor),
 198                ((double)lq_neighbor->link_quality/2.55),
 199                ((double)lq_neighbor->neighbor_link_quality/2.55));
 200
 201         msg_data += sizeof(struct olsr_lq_neighbor4);
 202         hello_len -= sizeof(struct olsr_lq_neighbor4);
 203     }
 204     return (0);
 205 }
 206
 207 #if INET6
 208 static int
 209 olsr_print_lq_neighbor6 (const u_char *msg_data, u_int hello_len)
 210 {
 211     struct olsr_lq_neighbor6 *lq_neighbor;
 212
 213     while (hello_len >= sizeof(struct olsr_lq_neighbor6)) {
 214
 215         lq_neighbor = (struct olsr_lq_neighbor6 *)msg_data;
 216         if (!TTEST(*lq_neighbor))
 217             return (-1);
 218
 219         printf("\n\t      neighbor %s, link-quality %.2lf%%"
 220                ", neighbor-link-quality %.2lf%%",
 221                ip6addr_string(lq_neighbor->neighbor),
 222                ((double)lq_neighbor->link_quality/2.55),
 223                ((double)lq_neighbor->neighbor_link_quality/2.55));
 224
 225         msg_data += sizeof(struct olsr_lq_neighbor6);
 226         hello_len -= sizeof(struct olsr_lq_neighbor6);
 227     }
 228     return (0);
 229 }
 230 #endif /* INET6 */
 231
 232 /*
 233  * print a neighbor list.
 234  */
 235 static int
 236 olsr_print_neighbor (const u_char *msg_data, u_int hello_len)
 237 {
 238     int neighbor;
 239
 240     printf("\n\t      neighbor\n\t\t");
 241     neighbor = 1;
 242
 243     while (hello_len >= sizeof(struct in_addr)) {
 244
 245         if (!TTEST2(*msg_data, sizeof(struct in_addr)))
 246             return (-1);
 247         /* print 4 neighbors per line */
 248
 249         printf("%s%s", ipaddr_string(msg_data),
 250                neighbor % 4 == 0 ? "\n\t\t" : " ");
 251
 252         msg_data += sizeof(struct in_addr);
 253         hello_len -= sizeof(struct in_addr);
 254     }
 255     return (0);
 256 }
 257
 258
 259 void
 260 olsr_print (const u_char *pptr, u_int length, int is_ipv6)
 261 {
 262     union {
 263         const struct olsr_common *common;
 264         const struct olsr_msg4 *msg4;
 265         const struct olsr_msg6 *msg6;
 266         const struct olsr_hello *hello;
 267         const struct olsr_hello_link *hello_link;
 268         const struct olsr_tc *tc;
 269         const struct olsr_hna4 *hna;
 270     } ptr;
 271
 272     u_int msg_type, msg_len, msg_tlen, hello_len;
 273     u_int16_t name_entry_type, name_entry_len;
 274     u_int name_entry_padding;
 275     u_int8_t link_type, neighbor_type;
 276     const u_char *tptr, *msg_data;
 277
 278     tptr = pptr;
 279
 280     if (length < sizeof(struct olsr_common)) {
 281         goto trunc;
 282     }
 283
 284     if (!TTEST2(*tptr, sizeof(struct olsr_common))) {
 285         goto trunc;
 286     }
 287
 288     ptr.common = (struct olsr_common *)tptr;
 289     length = MIN(length, EXTRACT_16BITS(ptr.common->packet_len));
 290
 291     printf("OLSRv%i, seq 0x%04x, length %u",
 292             (is_ipv6 == 0) ? 4 : 6,
 293             EXTRACT_16BITS(ptr.common->packet_seq),
 294             length);
 295
 296     tptr += sizeof(struct olsr_common);
 297
 298     /*
 299      * In non-verbose mode, just print version.
 300      */
 301     if (vflag < 1) {
 302         return;
 303     }
 304
 305     while (tptr < (pptr+length)) {
 306         union
 307         {
 308             struct olsr_msg4 *v4;
 309             struct olsr_msg6 *v6;
 310         } msgptr;
 311         int msg_len_valid = 0;
 312
 313         if (!TTEST2(*tptr, sizeof(struct olsr_msg4)))
 314             goto trunc;
 315
 316 #if INET6
 317         if (is_ipv6)
 318         {
 319             msgptr.v6 = (struct olsr_msg6 *) tptr;
 320             msg_type = msgptr.v6->msg_type;
 321             msg_len = EXTRACT_16BITS(msgptr.v6->msg_len);
 322             if ((msg_len >= sizeof (struct olsr_msg6))
 323                     && (msg_len <= length))
 324                 msg_len_valid = 1;
 325
 326             /* infinite loop check */
 327             if (msg_type == 0 || msg_len == 0) {
 328                 return;
 329             }
 330
 331             printf("\n\t%s Message (%#04x), originator %s, ttl %u, hop %u"
 332                     "\n\t  vtime %.3lfs, msg-seq 0x%04x, length %u%s",
 333                     tok2str(olsr_msg_values, "Unknown", msg_type),
 334                     msg_type, ip6addr_string(msgptr.v6->originator),
 335                     msgptr.v6->ttl,
 336                     msgptr.v6->hopcount,
 337                     ME_TO_DOUBLE(msgptr.v6->vtime),
 338                     EXTRACT_16BITS(msgptr.v6->msg_seq),
 339                     msg_len, (msg_len_valid == 0) ? " (invalid)" : "");
 340             if (!msg_len_valid) {
 341                 return;
 342             }
 343
 344             msg_tlen = msg_len - sizeof(struct olsr_msg6);
 345             msg_data = tptr + sizeof(struct olsr_msg6);
 346         }
 347         else /* (!is_ipv6) */
 348 #endif /* INET6 */
 349         {
 350             msgptr.v4 = (struct olsr_msg4 *) tptr;
 351             msg_type = msgptr.v4->msg_type;
 352             msg_len = EXTRACT_16BITS(msgptr.v4->msg_len);
 353             if ((msg_len >= sizeof (struct olsr_msg4))
 354                     && (msg_len <= length))
 355                 msg_len_valid = 1;
 356
 357             /* infinite loop check */
 358             if (msg_type == 0 || msg_len == 0) {
 359                 return;
 360             }
 361
 362             printf("\n\t%s Message (%#04x), originator %s, ttl %u, hop %u"
 363                     "\n\t  vtime %.3lfs, msg-seq 0x%04x, length %u%s",
 364                     tok2str(olsr_msg_values, "Unknown", msg_type),
 365                     msg_type, ipaddr_string(msgptr.v4->originator),
 366                     msgptr.v4->ttl,
 367                     msgptr.v4->hopcount,
 368                     ME_TO_DOUBLE(msgptr.v4->vtime),
 369                     EXTRACT_16BITS(msgptr.v4->msg_seq),
 370                     msg_len, (msg_len_valid == 0) ? " (invalid)" : "");
 371             if (!msg_len_valid) {
 372                 return;
 373             }
 374
 375             msg_tlen = msg_len - sizeof(struct olsr_msg4);
 376             msg_data = tptr + sizeof(struct olsr_msg4);
 377         }
 378
 379         switch (msg_type) {
 380         case OLSR_HELLO_MSG:
 381         case OLSR_HELLO_LQ_MSG:
 382             if (msg_tlen < sizeof(struct olsr_hello))
 383                 goto trunc;
 384             TCHECK2(*msg_data, sizeof(struct olsr_hello));
 385
 386             ptr.hello = (struct olsr_hello *)msg_data;
 387             printf("\n\t  hello-time %.3lfs, MPR willingness %u",
 388                    ME_TO_DOUBLE(ptr.hello->htime), ptr.hello->will);
 389             msg_data += sizeof(struct olsr_hello);
 390             msg_tlen -= sizeof(struct olsr_hello);
 391
 392             while (msg_tlen >= sizeof(struct olsr_hello_link)) {
 393                 int hello_len_valid = 0;
 394
 395                 /*
 396                  * link-type.
 397                  */
 398                 if (!TTEST2(*msg_data, sizeof(struct olsr_hello_link)))
 399                     goto trunc;
 400
 401                 ptr.hello_link = (struct olsr_hello_link *)msg_data;
 402
 403                 hello_len = EXTRACT_16BITS(ptr.hello_link->len);
 404                 link_type = OLSR_EXTRACT_LINK_TYPE(ptr.hello_link->link_code);
 405                 neighbor_type = OLSR_EXTRACT_NEIGHBOR_TYPE(ptr.hello_link->link_code);
 406
 407                 if ((hello_len <= msg_tlen)
 408                         && (hello_len >= sizeof(struct olsr_hello_link)))
 409                     hello_len_valid = 1;
 410
 411                 printf("\n\t    link-type %s, neighbor-type %s, len %u%s",
 412                        tok2str(olsr_link_type_values, "Unknown", link_type),
 413                        tok2str(olsr_neighbor_type_values, "Unknown", neighbor_type),
 414                        hello_len,
 415                        (hello_len_valid == 0) ? " (invalid)" : "");
 416
 417                 if (hello_len_valid == 0)
 418                     break;
 419
 420                 msg_data += sizeof(struct olsr_hello_link);
 421                 msg_tlen -= sizeof(struct olsr_hello_link);
 422                 hello_len -= sizeof(struct olsr_hello_link);
 423
 424                 TCHECK2(*msg_data, hello_len);
 425                 if (msg_type == OLSR_HELLO_MSG) {
 426                     if (olsr_print_neighbor(msg_data, hello_len) == -1)
 427                         goto trunc;
 428                 } else {
 429 #if INET6
 430                     if (is_ipv6) {
 431                         if (olsr_print_lq_neighbor6(msg_data, hello_len) == -1)
 432                             goto trunc;
 433                     } else
 434 #endif
 435                     {
 436                         if (olsr_print_lq_neighbor4(msg_data, hello_len) == -1)
 437                             goto trunc;
 438                     }
 439                 }
 440
 441                 msg_data += hello_len;
 442                 msg_tlen -= hello_len;
 443             }
 444             break;
 445
 446         case OLSR_TC_MSG:
 447         case OLSR_TC_LQ_MSG:
 448             if (msg_tlen < sizeof(struct olsr_tc))
 449                 goto trunc;
 450             TCHECK2(*msg_data, sizeof(struct olsr_tc));
 451
 452             ptr.tc = (struct olsr_tc *)msg_data;
 453             printf("\n\t    advertised neighbor seq 0x%04x",
 454                    EXTRACT_16BITS(ptr.tc->ans_seq));
 455             msg_data += sizeof(struct olsr_tc);
 456             msg_tlen -= sizeof(struct olsr_tc);
 457
 458             if (msg_type == OLSR_TC_MSG) {
 459                 if (olsr_print_neighbor(msg_data, msg_tlen) == -1)
 460                     goto trunc;
 461             } else {
 462 #if INET6
 463                 if (is_ipv6) {
 464                     if (olsr_print_lq_neighbor6(msg_data, msg_tlen) == -1)
 465                         goto trunc;
 466                 } else
 467 #endif
 468                 {
 469                     if (olsr_print_lq_neighbor4(msg_data, msg_tlen) == -1)
 470                         goto trunc;
 471                 }
 472             }
 473             break;
 474
 475         case OLSR_MID_MSG:
 476         {
 477             size_t addr_size = sizeof(struct in_addr);
 478
 479 #if INET6
 480             if (is_ipv6)
 481                 addr_size = sizeof(struct in6_addr);
 482 #endif
 483
 484             while (msg_tlen >= addr_size) {
 485                 if (!TTEST2(*msg_data, addr_size))
 486                     goto trunc;
 487
 488                 printf("\n\t  interface address %s",
 489 #if INET6
 490                         is_ipv6 ? ip6addr_string(msg_data) :
 491 #endif
 492                         ipaddr_string(msg_data));
 493                 msg_data += addr_size;
 494                 msg_tlen -= addr_size;
 495             }
 496             break;
 497         }
 498
 499         case OLSR_HNA_MSG:
 500             printf("\n\t  Advertised networks (total %u)",
 501                     (unsigned int) (msg_tlen / sizeof(struct olsr_hna6)));
 502 #if INET6
 503             if (is_ipv6)
 504             {
 505                 int i = 0;
 506                 while (msg_tlen >= sizeof(struct olsr_hna6)) {
 507                     struct olsr_hna6 *hna6;
 508
 509                     if (!TTEST2(*msg_data, sizeof(struct olsr_hna6)))
 510                         goto trunc;
 511
 512                     hna6 = (struct olsr_hna6 *)msg_data;
 513
 514                     printf("\n\t    #%i: %s/%u",
 515                             i, ip6addr_string(hna6->network),
 516                             mask62plen (hna6->mask));
 517
 518                     msg_data += sizeof(struct olsr_hna6);
 519                     msg_tlen -= sizeof(struct olsr_hna6);
 520                 }
 521             }
 522             else
 523 #endif
 524             {
 525                 int col = 0;
 526                 while (msg_tlen >= sizeof(struct olsr_hna4)) {
 527                     if (!TTEST2(*msg_data, sizeof(struct olsr_hna4)))
 528                         goto trunc;
 529
 530                     ptr.hna = (struct olsr_hna4 *)msg_data;
 531
 532                     /* print 4 prefixes per line */
 533                     if (col == 0)
 534                         printf ("\n\t    ");
 535                     else
 536                         printf (", ");
 537
 538                     printf("%s/%u",
 539                             ipaddr_string(ptr.hna->network),
 540                             mask2plen(EXTRACT_32BITS(ptr.hna->mask)));
 541
 542                     msg_data += sizeof(struct olsr_hna4);
 543                     msg_tlen -= sizeof(struct olsr_hna4);
 544
 545                     col = (col + 1) % 4;
 546                 }
 547             }
 548             break;
 549
 550         case OLSR_NAMESERVICE_MSG:
 551         {
 552             u_int name_entries = EXTRACT_16BITS(msg_data+2);
 553             u_int addr_size = 4;
 554             int name_entries_valid = 0;
 555             u_int i;
 556
 557             if (is_ipv6)
 558                 addr_size = 16;
 559
 560             if ((name_entries > 0)
 561                     && ((name_entries * (4 + addr_size)) <= msg_tlen))
 562                 name_entries_valid = 1;
 563
 564             if (msg_tlen < 4)
 565                 goto trunc;
 566             if (!TTEST2(*msg_data, 4))
 567                 goto trunc;
 568
 569             printf("\n\t  Version %u, Entries %u%s",
 570                    EXTRACT_16BITS(msg_data),
 571                    name_entries, (name_entries_valid == 0) ? " (invalid)" : "");
 572
 573             if (name_entries_valid == 0)
 574                 break;
 575
 576             msg_data += 4;
 577             msg_tlen -= 4;
 578
 579             for (i = 0; i < name_entries; i++) {
 580                 int name_entry_len_valid = 0;
 581
 582                 if (msg_tlen < 4)
 583                     break;
 584                 if (!TTEST2(*msg_data, 4))
 585                     goto trunc;
 586
 587                 name_entry_type = EXTRACT_16BITS(msg_data);
 588                 name_entry_len = EXTRACT_16BITS(msg_data+2);
 589
 590                 msg_data += 4;
 591                 msg_tlen -= 4;
 592
 593                 if ((name_entry_len > 0) && ((addr_size + name_entry_len) <= msg_tlen))
 594                     name_entry_len_valid = 1;
 595
 596                 printf("\n\t    #%u: type %#06x, length %u%s",
 597                         (unsigned int) i, name_entry_type,
 598                         name_entry_len, (name_entry_len_valid == 0) ? " (invalid)" : "");
 599
 600                 if (name_entry_len_valid == 0)
 601                     break;
 602
 603                 /* 32-bit alignment */
 604                 name_entry_padding = 0;
 605                 if (name_entry_len%4 != 0)
 606                     name_entry_padding = 4-(name_entry_len%4);
 607
 608                 if (msg_tlen < addr_size + name_entry_len + name_entry_padding)
 609                     goto trunc;
 610
 611                 if (!TTEST2(*msg_data, addr_size + name_entry_len + name_entry_padding))
 612                     goto trunc;
 613
 614 #if INET6
 615                 if (is_ipv6)
 616                     printf(", address %s, name \"",
 617                             ip6addr_string(msg_data));
 618                 else
 619 #endif
 620                     printf(", address %s, name \"",
 621                             ipaddr_string(msg_data));
 622                 fn_printn(msg_data + addr_size, name_entry_len, NULL);
 623                 printf("\"");
 624
 625                 msg_data += addr_size + name_entry_len + name_entry_padding;
 626                 msg_tlen -= addr_size + name_entry_len + name_entry_padding;
 627             } /* for (i = 0; i < name_entries; i++) */
 628             break;
 629         } /* case OLSR_NAMESERVICE_MSG */
 630
 631             /*
 632              * FIXME those are the defined messages that lack a decoder
 633              * you are welcome to contribute code ;-)
 634              */
 635         case OLSR_POWERINFO_MSG:
 636         default:
 637             print_unknown_data(msg_data, "\n\t    ", msg_tlen);
 638             break;
 639         } /* switch (msg_type) */
 640         tptr += msg_len;
 641     } /* while (tptr < (pptr+length)) */
 642
 643     return;
 644
 645  trunc:
 646     printf("[|olsr]");
 647 }
 648
 649 /*
 650  * Local Variables:
 651  * c-style: whitesmith
 652  * c-basic-offset: 4
 653  * End:
 654  */