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

   1 /*
   2  * Redistribution and use in source and binary forms, with or without
   3  * modification, are permitted provided that: (1) source code
   4  * distributions retain the above copyright notice and this paragraph
   5  * in its entirety, and (2) distributions including binary code include
   6  * the above copyright notice and this paragraph in its entirety in
   7  * the documentation or other materials provided with the distribution.
   8  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND
   9  * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
  10  * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  11  * FOR A PARTICULAR PURPOSE.
  12  *
  13  * Support for the Link Management Protocol as per rfc 4204.
  14  *
  15  * Original code by Hannes Gredler (hannes@juniper.net)
  16  * Support for LMP service discovery extensions (defined by UNI 1.0) added
  17  * by Manu Pathak (mapathak@cisco.com), May 2005
  18  */
  19
  20 #define NETDISSECT_REWORKED
  21 #ifdef HAVE_CONFIG_H
  22 #include "config.h"
  23 #endif
  24
  25 #include <tcpdump-stdinc.h>
  26
  27 #include "interface.h"
  28 #include "extract.h"
  29 #include "addrtoname.h"
  30 #include "gmpls.h"
  31
  32 /*
  33  * LMP common header
  34  *
  35  *  0                   1                   2                   3
  36  *  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
  37  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  38  * | Vers  |      (Reserved)       |    Flags      |    Msg Type   |
  39  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  40  * |          LMP Length           |          (Reserved)           |
  41  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  42  */
  43
  44 struct lmp_common_header {
  45     uint8_t version_res[2];
  46     uint8_t flags;
  47     uint8_t msg_type;
  48     uint8_t length[2];
  49     uint8_t reserved[2];
  50 };
  51
  52 #define LMP_VERSION            1
  53 #define LMP_EXTRACT_VERSION(x) (((x)&0xf0)>>4)
  54
  55 static const struct tok lmp_header_flag_values[] = {
  56     { 0x01, "Control Channel Down"},
  57     { 0x02, "LMP restart"},
  58     { 0, NULL}
  59 };
  60
  61 static const struct tok lmp_obj_te_link_flag_values[] = {
  62     { 0x01, "Fault Management Supported"},
  63     { 0x02, "Link Verification Supported"},
  64     { 0, NULL}
  65 };
  66
  67 static const struct tok lmp_obj_data_link_flag_values[] = {
  68     { 0x01, "Data Link Port"},
  69     { 0x02, "Allocated for user traffic"},
  70     { 0x04, "Failed link"},
  71     { 0, NULL}
  72 };
  73
  74 static const struct tok lmp_obj_channel_status_values[] = {
  75     { 1, "Signal Okay"},
  76     { 2, "Signal Degraded"},
  77     { 3, "Signal Fail"},
  78     { 0, NULL}
  79 };
  80
  81 static const struct tok lmp_obj_begin_verify_flag_values[] = {
  82     { 0x0001, "Verify all links"},
  83     { 0x0002, "Data link type"},
  84     { 0, NULL}
  85 };
  86
  87 static const struct tok lmp_obj_begin_verify_error_values[] = {
  88     { 0x01, "Link Verification Procedure Not supported"},
  89     { 0x02, "Unwilling to verify"},
  90     { 0x04, "Unsupported verification transport mechanism"},
  91     { 0x08, "Link-Id configuration error"},
  92     { 0x10, "Unknown object c-type"},
  93     { 0, NULL}
  94 };
  95
  96 static const struct tok lmp_obj_link_summary_error_values[] = {
  97     { 0x01, "Unacceptable non-negotiable LINK-SUMMARY parameters"},
  98     { 0x02, "Renegotiate LINK-SUMMARY parameters"},
  99     { 0x04, "Invalid TE-LINK Object"},
 100     { 0x08, "Invalid DATA-LINK Object"},
 101     { 0x10, "Unknown TE-LINK Object c-type"},
 102     { 0x20, "Unknown DATA-LINK Object c-type"},
 103     { 0, NULL}
 104 };
 105
 106 /* Service Config Supported Protocols Flags */
 107 static const struct tok lmp_obj_service_config_sp_flag_values[] = {
 108     { 0x01, "RSVP Supported"},
 109     { 0x02, "LDP Supported"},
 110     { 0, NULL}
 111 };
 112
 113 /* Service Config Client Port Service Attribute Transparency Flags */
 114 static const struct tok lmp_obj_service_config_cpsa_tp_flag_values[] = {
 115     { 0x01, "Path/VC Overhead Transparency Supported"},
 116     { 0x02, "Line/MS Overhead Transparency Supported"},
 117     { 0x04, "Section/RS Overhead Transparency Supported"},
 118     { 0, NULL}
 119 };
 120
 121 /* Service Config Client Port Service Attribute Contiguous Concatenation Types Flags */
 122 static const struct tok lmp_obj_service_config_cpsa_cct_flag_values[] = {
 123     { 0x01, "Contiguous Concatenation Types Supported"},
 124     { 0, NULL}
 125 };
 126
 127 /* Service Config Network Service Attributes Transparency Flags */
 128 static const struct tok lmp_obj_service_config_nsa_transparency_flag_values[] = {
 129     { 0x01, "Standard SOH/RSOH Transparency Supported"},
 130     { 0x02, "Standard LOH/MSOH Transparency Supported"},
 131     { 0, NULL}
 132 };
 133
 134 /* Service Config Network Service Attributes TCM Monitoring Flags */
 135 static const struct tok lmp_obj_service_config_nsa_tcm_flag_values[] = {
 136     { 0x01, "Transparent Tandem Connection Monitoring Supported"},
 137     { 0, NULL}
 138 };
 139
 140 /* Network Service Attributes Network Diversity Flags */
 141 static const struct tok lmp_obj_service_config_nsa_network_diversity_flag_values[] = {
 142     { 0x01, "Node Diversity Supported"},
 143     { 0x02, "Link Diversity Supported"},
 144     { 0x04, "SRLG Diversity Supported"},
 145     { 0, NULL}
 146 };
 147
 148 #define LMP_MSGTYPE_CONFIG                 1
 149 #define LMP_MSGTYPE_CONFIG_ACK             2
 150 #define LMP_MSGTYPE_CONFIG_NACK            3
 151 #define LMP_MSGTYPE_HELLO                  4
 152 #define LMP_MSGTYPE_VERIFY_BEGIN           5
 153 #define LMP_MSGTYPE_VERIFY_BEGIN_ACK       6
 154 #define LMP_MSGTYPE_VERIFY_BEGIN_NACK      7
 155 #define LMP_MSGTYPE_VERIFY_END             8
 156 #define LMP_MSGTYPE_VERIFY_END_ACK         9
 157 #define LMP_MSGTYPE_TEST                  10
 158 #define LMP_MSGTYPE_TEST_STATUS_SUCCESS   11
 159 #define LMP_MSGTYPE_TEST_STATUS_FAILURE   12
 160 #define LMP_MSGTYPE_TEST_STATUS_ACK       13
 161 #define LMP_MSGTYPE_LINK_SUMMARY          14
 162 #define LMP_MSGTYPE_LINK_SUMMARY_ACK      15
 163 #define LMP_MSGTYPE_LINK_SUMMARY_NACK     16
 164 #define LMP_MSGTYPE_CHANNEL_STATUS        17
 165 #define LMP_MSGTYPE_CHANNEL_STATUS_ACK    18
 166 #define LMP_MSGTYPE_CHANNEL_STATUS_REQ    19
 167 #define LMP_MSGTYPE_CHANNEL_STATUS_RESP   20
 168 /* LMP Service Discovery message types defined by UNI 1.0 */
 169 #define LMP_MSGTYPE_SERVICE_CONFIG        50
 170 #define LMP_MSGTYPE_SERVICE_CONFIG_ACK    51
 171 #define LMP_MSGTYPE_SERVICE_CONFIG_NACK   52
 172
 173 static const struct tok lmp_msg_type_values[] = {
 174     { LMP_MSGTYPE_CONFIG, "Config"},
 175     { LMP_MSGTYPE_CONFIG_ACK, "Config ACK"},
 176     { LMP_MSGTYPE_CONFIG_NACK, "Config NACK"},
 177     { LMP_MSGTYPE_HELLO, "Hello"},
 178     { LMP_MSGTYPE_VERIFY_BEGIN, "Begin Verify"},
 179     { LMP_MSGTYPE_VERIFY_BEGIN_ACK, "Begin Verify ACK"},
 180     { LMP_MSGTYPE_VERIFY_BEGIN_NACK, "Begin Verify NACK"},
 181     { LMP_MSGTYPE_VERIFY_END, "End Verify"},
 182     { LMP_MSGTYPE_VERIFY_END_ACK, "End Verify ACK"},
 183     { LMP_MSGTYPE_TEST, "Test"},
 184     { LMP_MSGTYPE_TEST_STATUS_SUCCESS, "Test Status Success"},
 185     { LMP_MSGTYPE_TEST_STATUS_FAILURE, "Test Status Failure"},
 186     { LMP_MSGTYPE_TEST_STATUS_ACK, "Test Status ACK"},
 187     { LMP_MSGTYPE_LINK_SUMMARY, "Link Summary"},
 188     { LMP_MSGTYPE_LINK_SUMMARY_ACK, "Link Summary ACK"},
 189     { LMP_MSGTYPE_LINK_SUMMARY_NACK, "Link Summary NACK"},
 190     { LMP_MSGTYPE_CHANNEL_STATUS, "Channel Status"},
 191     { LMP_MSGTYPE_CHANNEL_STATUS_ACK, "Channel Status ACK"},
 192     { LMP_MSGTYPE_CHANNEL_STATUS_REQ, "Channel Status Request"},
 193     { LMP_MSGTYPE_CHANNEL_STATUS_RESP, "Channel Status Response"},
 194     { LMP_MSGTYPE_SERVICE_CONFIG, "Service Config"},
 195     { LMP_MSGTYPE_SERVICE_CONFIG_ACK, "Service Config ACK"},
 196     { LMP_MSGTYPE_SERVICE_CONFIG_NACK, "Service Config NACK"},
 197     { 0, NULL}
 198 };
 199
 200 /*
 201  * LMP object header
 202  *
 203  *  0                   1                   2                   3
 204  *  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
 205  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 206  * |N|   C-Type    |     Class     |            Length             |
 207  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 208  * |                                                               |
 209  * //                       (object contents)                     //
 210  * |                                                               |
 211  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 212  */
 213
 214 struct lmp_object_header {
 215     uint8_t ctype;
 216     uint8_t class_num;
 217     uint8_t length[2];
 218 };
 219
 220 #define LMP_OBJ_CC_ID                 1
 221 #define LMP_OBJ_NODE_ID               2
 222 #define LMP_OBJ_LINK_ID               3
 223 #define LMP_OBJ_INTERFACE_ID          4
 224 #define LMP_OBJ_MESSAGE_ID            5
 225 #define LMP_OBJ_CONFIG                6
 226 #define LMP_OBJ_HELLO                 7
 227 #define LMP_OBJ_VERIFY_BEGIN          8
 228 #define LMP_OBJ_VERIFY_BEGIN_ACK      9
 229 #define LMP_OBJ_VERIFY_ID            10
 230 #define LMP_OBJ_TE_LINK              11
 231 #define LMP_OBJ_DATA_LINK            12
 232 #define LMP_OBJ_CHANNEL_STATUS       13
 233 #define LMP_OBJ_CHANNEL_STATUS_REQ   14
 234 #define LMP_OBJ_ERROR_CODE           20
 235
 236 #define LMP_OBJ_SERVICE_CONFIG       51 /* defined in UNI 1.0 */
 237
 238 static const struct tok lmp_obj_values[] = {
 239     { LMP_OBJ_CC_ID, "Control Channel ID" },
 240     { LMP_OBJ_NODE_ID, "Node ID" },
 241     { LMP_OBJ_LINK_ID, "Link ID" },
 242     { LMP_OBJ_INTERFACE_ID, "Interface ID" },
 243     { LMP_OBJ_MESSAGE_ID, "Message ID" },
 244     { LMP_OBJ_CONFIG, "Configuration" },
 245     { LMP_OBJ_HELLO, "Hello" },
 246     { LMP_OBJ_VERIFY_BEGIN, "Verify Begin" },
 247     { LMP_OBJ_VERIFY_BEGIN_ACK, "Verify Begin ACK" },
 248     { LMP_OBJ_VERIFY_ID, "Verify ID" },
 249     { LMP_OBJ_TE_LINK, "TE Link" },
 250     { LMP_OBJ_DATA_LINK, "Data Link" },
 251     { LMP_OBJ_CHANNEL_STATUS, "Channel Status" },
 252     { LMP_OBJ_CHANNEL_STATUS_REQ, "Channel Status Request" },
 253     { LMP_OBJ_ERROR_CODE, "Error Code" },
 254     { LMP_OBJ_SERVICE_CONFIG, "Service Config" },
 255
 256     { 0, NULL}
 257 };
 258
 259 #define INT_SWITCHING_TYPE_SUBOBJ 1
 260 #define WAVELENGTH_SUBOBJ         2
 261
 262 static const struct tok lmp_data_link_subobj[] = {
 263     { INT_SWITCHING_TYPE_SUBOBJ, "Interface Switching Type" },
 264     { WAVELENGTH_SUBOBJ        , "Wavelength" },
 265     { 0, NULL}
 266 };
 267
 268 #define LMP_CTYPE_IPV4       1
 269 #define LMP_CTYPE_IPV6       2
 270
 271 #define LMP_CTYPE_LOC        1
 272 #define LMP_CTYPE_RMT        2
 273 #define LMP_CTYPE_UNMD       3
 274
 275 #define LMP_CTYPE_IPV4_LOC   1
 276 #define LMP_CTYPE_IPV4_RMT   2
 277 #define LMP_CTYPE_IPV6_LOC   3
 278 #define LMP_CTYPE_IPV6_RMT   4
 279 #define LMP_CTYPE_UNMD_LOC   5
 280 #define LMP_CTYPE_UNMD_RMT   6
 281
 282 #define LMP_CTYPE_1          1
 283 #define LMP_CTYPE_2          2
 284
 285 #define LMP_CTYPE_HELLO_CONFIG  1
 286 #define LMP_CTYPE_HELLO         1
 287
 288 #define LMP_CTYPE_BEGIN_VERIFY_ERROR 1
 289 #define LMP_CTYPE_LINK_SUMMARY_ERROR 2
 290
 291 /* C-Types for Service Config Object */
 292 #define LMP_CTYPE_SERVICE_CONFIG_SP                   1
 293 #define LMP_CTYPE_SERVICE_CONFIG_CPSA                 2
 294 #define LMP_CTYPE_SERVICE_CONFIG_TRANSPARENCY_TCM     3
 295 #define LMP_CTYPE_SERVICE_CONFIG_NETWORK_DIVERSITY    4
 296
 297 /*
 298  * Different link types allowed in the Client Port Service Attributes
 299  * subobject defined for LMP Service Discovery in the UNI 1.0 spec
 300  */
 301 #define LMP_SD_SERVICE_CONFIG_CPSA_LINK_TYPE_SDH     5 /* UNI 1.0 Sec 9.4.2 */
 302 #define LMP_SD_SERVICE_CONFIG_CPSA_LINK_TYPE_SONET   6 /* UNI 1.0 Sec 9.4.2 */
 303
 304 /*
 305  * the ctypes are not globally unique so for
 306  * translating it to strings we build a table based
 307  * on objects offsetted by the ctype
 308  */
 309
 310 static const struct tok lmp_ctype_values[] = {
 311     { 256*LMP_OBJ_CC_ID+LMP_CTYPE_LOC, "Local" },
 312     { 256*LMP_OBJ_CC_ID+LMP_CTYPE_RMT, "Remote" },
 313     { 256*LMP_OBJ_NODE_ID+LMP_CTYPE_LOC, "Local" },
 314     { 256*LMP_OBJ_NODE_ID+LMP_CTYPE_RMT, "Remote" },
 315     { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_IPV4_LOC, "IPv4 Local" },
 316     { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_IPV4_RMT, "IPv4 Remote" },
 317     { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_IPV6_LOC, "IPv6 Local" },
 318     { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_IPV6_RMT, "IPv6 Remote" },
 319     { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_UNMD_LOC, "Unnumbered Local" },
 320     { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_UNMD_RMT, "Unnumbered Remote" },
 321     { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_IPV4_LOC, "IPv4 Local" },
 322     { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_IPV4_RMT, "IPv4 Remote" },
 323     { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_IPV6_LOC, "IPv6 Local" },
 324     { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_IPV6_RMT, "IPv6 Remote" },
 325     { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_UNMD_LOC, "Unnumbered Local" },
 326     { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_UNMD_RMT, "Unnumbered Remote" },
 327     { 256*LMP_OBJ_MESSAGE_ID+LMP_CTYPE_1, "1" },
 328     { 256*LMP_OBJ_MESSAGE_ID+LMP_CTYPE_2, "2" },
 329     { 256*LMP_OBJ_CONFIG+LMP_CTYPE_1, "1" },
 330     { 256*LMP_OBJ_HELLO+LMP_CTYPE_1, "1" },
 331     { 256*LMP_OBJ_VERIFY_BEGIN+LMP_CTYPE_1, "1" },
 332     { 256*LMP_OBJ_VERIFY_BEGIN_ACK+LMP_CTYPE_1, "1" },
 333     { 256*LMP_OBJ_VERIFY_ID+LMP_CTYPE_1, "1" },
 334     { 256*LMP_OBJ_TE_LINK+LMP_CTYPE_IPV4, "IPv4" },
 335     { 256*LMP_OBJ_TE_LINK+LMP_CTYPE_IPV6, "IPv6" },
 336     { 256*LMP_OBJ_TE_LINK+LMP_CTYPE_UNMD, "Unnumbered" },
 337     { 256*LMP_OBJ_DATA_LINK+LMP_CTYPE_IPV4, "IPv4" },
 338     { 256*LMP_OBJ_DATA_LINK+LMP_CTYPE_IPV6, "IPv6" },
 339     { 256*LMP_OBJ_DATA_LINK+LMP_CTYPE_UNMD, "Unnumbered" },
 340     { 256*LMP_OBJ_CHANNEL_STATUS+LMP_CTYPE_IPV4, "IPv4" },
 341     { 256*LMP_OBJ_CHANNEL_STATUS+LMP_CTYPE_IPV6, "IPv6" },
 342     { 256*LMP_OBJ_CHANNEL_STATUS+LMP_CTYPE_UNMD, "Unnumbered" },
 343     { 256*LMP_OBJ_CHANNEL_STATUS_REQ+LMP_CTYPE_IPV4, "IPv4" },
 344     { 256*LMP_OBJ_CHANNEL_STATUS_REQ+LMP_CTYPE_IPV6, "IPv6" },
 345     { 256*LMP_OBJ_CHANNEL_STATUS_REQ+LMP_CTYPE_UNMD, "Unnumbered" },
 346     { 256*LMP_OBJ_ERROR_CODE+LMP_CTYPE_1, "1" },
 347     { 256*LMP_OBJ_ERROR_CODE+LMP_CTYPE_2, "2" },
 348     { 256*LMP_OBJ_SERVICE_CONFIG+LMP_CTYPE_SERVICE_CONFIG_SP, "1" },
 349     { 256*LMP_OBJ_SERVICE_CONFIG+LMP_CTYPE_SERVICE_CONFIG_CPSA, "2" },
 350     { 256*LMP_OBJ_SERVICE_CONFIG+LMP_CTYPE_SERVICE_CONFIG_TRANSPARENCY_TCM, "3" },
 351     { 256*LMP_OBJ_SERVICE_CONFIG+LMP_CTYPE_SERVICE_CONFIG_NETWORK_DIVERSITY, "4" },
 352     { 0, NULL}
 353 };
 354
 355 void
 356 lmp_print(netdissect_options *ndo,
 357           register const u_char *pptr, register u_int len) {
 358
 359     const struct lmp_common_header *lmp_com_header;
 360     const struct lmp_object_header *lmp_obj_header;
 361     const u_char *tptr,*obj_tptr;
 362     int tlen,lmp_obj_len,lmp_obj_ctype,obj_tlen;
 363     int hexdump;
 364     int offset,subobj_type,subobj_len,total_subobj_len;
 365     int link_type;
 366
 367     union { /* int to float conversion buffer */
 368         float f;
 369         uint32_t i;
 370     } bw;
 371
 372     tptr=pptr;
 373     lmp_com_header = (const struct lmp_common_header *)pptr;
 374     ND_TCHECK(*lmp_com_header);
 375
 376     /*
 377      * Sanity checking of the header.
 378      */
 379     if (LMP_EXTRACT_VERSION(lmp_com_header->version_res[0]) != LMP_VERSION) {
 380         ND_PRINT((ndo, "LMP version %u packet not supported",
 381                LMP_EXTRACT_VERSION(lmp_com_header->version_res[0])));
 382         return;
 383     }
 384
 385     /* in non-verbose mode just lets print the basic Message Type*/
 386     if (ndo->ndo_vflag < 1) {
 387         ND_PRINT((ndo, "LMPv%u %s Message, length: %u",
 388                LMP_EXTRACT_VERSION(lmp_com_header->version_res[0]),
 389                tok2str(lmp_msg_type_values, "unknown (%u)",lmp_com_header->msg_type),
 390                len));
 391         return;
 392     }
 393
 394     /* ok they seem to want to know everything - lets fully decode it */
 395
 396     tlen=EXTRACT_16BITS(lmp_com_header->length);
 397
 398     ND_PRINT((ndo, "\n\tLMPv%u, msg-type: %s, Flags: [%s], length: %u",
 399            LMP_EXTRACT_VERSION(lmp_com_header->version_res[0]),
 400            tok2str(lmp_msg_type_values, "unknown, type: %u",lmp_com_header->msg_type),
 401            bittok2str(lmp_header_flag_values,"none",lmp_com_header->flags),
 402            tlen));
 403
 404     tptr+=sizeof(const struct lmp_common_header);
 405     tlen-=sizeof(const struct lmp_common_header);
 406
 407     while(tlen>0) {
 408         /* did we capture enough for fully decoding the object header ? */
 409         ND_TCHECK2(*tptr, sizeof(struct lmp_object_header));
 410
 411         lmp_obj_header = (const struct lmp_object_header *)tptr;
 412         lmp_obj_len=EXTRACT_16BITS(lmp_obj_header->length);
 413         lmp_obj_ctype=(lmp_obj_header->ctype)&0x7f;
 414
 415         if(lmp_obj_len % 4 || lmp_obj_len < 4)
 416             return;
 417
 418         ND_PRINT((ndo, "\n\t  %s Object (%u), Class-Type: %s (%u) Flags: [%snegotiable], length: %u",
 419                tok2str(lmp_obj_values,
 420                        "Unknown",
 421                        lmp_obj_header->class_num),
 422                lmp_obj_header->class_num,
 423                tok2str(lmp_ctype_values,
 424                        "Unknown",
 425                        ((lmp_obj_header->class_num)<<8)+lmp_obj_ctype),
 426                lmp_obj_ctype,
 427                (lmp_obj_header->ctype)&0x80 ? "" : "non-",
 428                lmp_obj_len));
 429
 430         obj_tptr=tptr+sizeof(struct lmp_object_header);
 431         obj_tlen=lmp_obj_len-sizeof(struct lmp_object_header);
 432
 433         /* did we capture enough for fully decoding the object ? */
 434         ND_TCHECK2(*tptr, lmp_obj_len);
 435         hexdump=FALSE;
 436
 437         switch(lmp_obj_header->class_num) {
 438
 439         case LMP_OBJ_CC_ID:
 440             switch(lmp_obj_ctype) {
 441             case LMP_CTYPE_LOC:
 442             case LMP_CTYPE_RMT:
 443                 ND_PRINT((ndo, "\n\t    Control Channel ID: %u (0x%08x)",
 444                        EXTRACT_32BITS(obj_tptr),
 445                        EXTRACT_32BITS(obj_tptr)));
 446                 break;
 447
 448             default:
 449                 hexdump=TRUE;
 450             }
 451             break;
 452
 453         case LMP_OBJ_LINK_ID:
 454         case LMP_OBJ_INTERFACE_ID:
 455             switch(lmp_obj_ctype) {
 456             case LMP_CTYPE_IPV4_LOC:
 457             case LMP_CTYPE_IPV4_RMT:
 458                 ND_PRINT((ndo, "\n\t    IPv4 Link ID: %s (0x%08x)",
 459                        ipaddr_string(ndo, obj_tptr),
 460                        EXTRACT_32BITS(obj_tptr)));
 461                 break;
 462 #ifdef INET6
 463             case LMP_CTYPE_IPV6_LOC:
 464             case LMP_CTYPE_IPV6_RMT:
 465                 ND_PRINT((ndo, "\n\t    IPv6 Link ID: %s (0x%08x)",
 466                        ip6addr_string(ndo, obj_tptr),
 467                        EXTRACT_32BITS(obj_tptr)));
 468                 break;
 469 #endif
 470             case LMP_CTYPE_UNMD_LOC:
 471             case LMP_CTYPE_UNMD_RMT:
 472                 ND_PRINT((ndo, "\n\t    Link ID: %u (0x%08x)",
 473                        EXTRACT_32BITS(obj_tptr),
 474                        EXTRACT_32BITS(obj_tptr)));
 475                 break;
 476             default:
 477                 hexdump=TRUE;
 478             }
 479             break;
 480
 481         case LMP_OBJ_MESSAGE_ID:
 482             switch(lmp_obj_ctype) {
 483             case LMP_CTYPE_1:
 484                 ND_PRINT((ndo, "\n\t    Message ID: %u (0x%08x)",
 485                        EXTRACT_32BITS(obj_tptr),
 486                        EXTRACT_32BITS(obj_tptr)));
 487                 break;
 488             case LMP_CTYPE_2:
 489                 ND_PRINT((ndo, "\n\t    Message ID Ack: %u (0x%08x)",
 490                        EXTRACT_32BITS(obj_tptr),
 491                        EXTRACT_32BITS(obj_tptr)));
 492                 break;
 493             default:
 494                 hexdump=TRUE;
 495             }
 496             break;
 497
 498         case LMP_OBJ_NODE_ID:
 499             switch(lmp_obj_ctype) {
 500             case LMP_CTYPE_LOC:
 501             case LMP_CTYPE_RMT:
 502                 ND_PRINT((ndo, "\n\t    Node ID: %s (0x%08x)",
 503                        ipaddr_string(ndo, obj_tptr),
 504                        EXTRACT_32BITS(obj_tptr)));
 505                 break;
 506
 507             default:
 508                 hexdump=TRUE;
 509             }
 510             break;
 511
 512         case LMP_OBJ_CONFIG:
 513             switch(lmp_obj_ctype) {
 514             case LMP_CTYPE_HELLO_CONFIG:
 515                 ND_PRINT((ndo, "\n\t    Hello Interval: %u\n\t    Hello Dead Interval: %u",
 516                        EXTRACT_16BITS(obj_tptr),
 517                        EXTRACT_16BITS(obj_tptr+2)));
 518                 break;
 519
 520             default:
 521                 hexdump=TRUE;
 522             }
 523             break;
 524
 525         case LMP_OBJ_HELLO:
 526             switch(lmp_obj_ctype) {
 527             case LMP_CTYPE_HELLO:
 528                 ND_PRINT((ndo, "\n\t    Tx Seq: %u, Rx Seq: %u",
 529                        EXTRACT_32BITS(obj_tptr),
 530                        EXTRACT_32BITS(obj_tptr+4)));
 531                 break;
 532
 533             default:
 534                 hexdump=TRUE;
 535             }
 536             break;
 537
 538         case LMP_OBJ_TE_LINK:
 539                 ND_PRINT((ndo, "\n\t    Flags: [%s]",
 540                 bittok2str(lmp_obj_te_link_flag_values,
 541                         "none",
 542                         EXTRACT_16BITS(obj_tptr)>>8)));
 543
 544             switch(lmp_obj_ctype) {
 545             case LMP_CTYPE_IPV4:
 546                 ND_PRINT((ndo, "\n\t    Local Link-ID: %s (0x%08x)"
 547                        "\n\t    Remote Link-ID: %s (0x%08x)",
 548                        ipaddr_string(ndo, obj_tptr+4),
 549                        EXTRACT_32BITS(obj_tptr+4),
 550                        ipaddr_string(ndo, obj_tptr+8),
 551                        EXTRACT_32BITS(obj_tptr+8)));
 552                 break;
 553
 554 #ifdef INET6
 555             case LMP_CTYPE_IPV6:
 556 #endif
 557             case LMP_CTYPE_UNMD:
 558             default:
 559                 hexdump=TRUE;
 560             }
 561             break;
 562
 563         case LMP_OBJ_DATA_LINK:
 564                 ND_PRINT((ndo, "\n\t    Flags: [%s]",
 565                 bittok2str(lmp_obj_data_link_flag_values,
 566                         "none",
 567                         EXTRACT_16BITS(obj_tptr)>>8)));
 568
 569             switch(lmp_obj_ctype) {
 570             case LMP_CTYPE_IPV4:
 571             case LMP_CTYPE_UNMD:
 572                 ND_PRINT((ndo, "\n\t    Local Interface ID: %s (0x%08x)"
 573                        "\n\t    Remote Interface ID: %s (0x%08x)",
 574                        ipaddr_string(ndo, obj_tptr+4),
 575                        EXTRACT_32BITS(obj_tptr+4),
 576                        ipaddr_string(ndo, obj_tptr+8),
 577                        EXTRACT_32BITS(obj_tptr+8)));
 578
 579                 total_subobj_len = lmp_obj_len - 16;
 580                 offset = 12;
 581                 while (total_subobj_len > 0 && hexdump == FALSE ) {
 582                         subobj_type = EXTRACT_16BITS(obj_tptr+offset)>>8;
 583                         subobj_len  = EXTRACT_16BITS(obj_tptr+offset)&0x00FF;
 584                         ND_PRINT((ndo, "\n\t    Subobject, Type: %s (%u), Length: %u",
 585                                 tok2str(lmp_data_link_subobj,
 586                                         "Unknown",
 587                                         subobj_type),
 588                                         subobj_type,
 589                                         subobj_len));
 590                         switch(subobj_type) {
 591                         case INT_SWITCHING_TYPE_SUBOBJ:
 592                                 ND_PRINT((ndo, "\n\t      Switching Type: %s (%u)",
 593                                         tok2str(gmpls_switch_cap_values,
 594                                                 "Unknown",
 595                                                 EXTRACT_16BITS(obj_tptr+offset+2)>>8),
 596                                         EXTRACT_16BITS(obj_tptr+offset+2)>>8));
 597                                 ND_PRINT((ndo, "\n\t      Encoding Type: %s (%u)",
 598                                         tok2str(gmpls_encoding_values,
 599                                                 "Unknown",
 600                                                 EXTRACT_16BITS(obj_tptr+offset+2)&0x00FF),
 601                                         EXTRACT_16BITS(obj_tptr+offset+2)&0x00FF));
 602                                 bw.i = EXTRACT_32BITS(obj_tptr+offset+4);
 603                                 ND_PRINT((ndo, "\n\t      Min Reservable Bandwidth: %.3f Mbps",
 604                                        bw.f*8/1000000));
 605                                 bw.i = EXTRACT_32BITS(obj_tptr+offset+8);
 606                                 ND_PRINT((ndo, "\n\t      Max Reservable Bandwidth: %.3f Mbps",
 607                                        bw.f*8/1000000));
 608                                 break;
 609                         case WAVELENGTH_SUBOBJ:
 610                                 ND_PRINT((ndo, "\n\t      Wavelength: %u",
 611                                         EXTRACT_32BITS(obj_tptr+offset+4)));
 612                                 break;
 613                         default:
 614                                 /* Any Unknown Subobject ==> Exit loop */
 615                                 hexdump=TRUE;
 616                                 break;
 617                         }
 618                         total_subobj_len-=subobj_len;
 619                         offset+=subobj_len;
 620                 }
 621
 622                 break;
 623 #ifdef INET6
 624             case LMP_CTYPE_IPV6:
 625 #endif
 626             default:
 627                 hexdump=TRUE;
 628             }
 629             break;
 630
 631         case LMP_OBJ_VERIFY_BEGIN:
 632             switch(lmp_obj_ctype) {
 633             case LMP_CTYPE_1:
 634                 ND_PRINT((ndo, "\n\t    Flags: %s",
 635                 bittok2str(lmp_obj_begin_verify_flag_values,
 636                         "none",
 637                         EXTRACT_16BITS(obj_tptr))));
 638                 ND_PRINT((ndo, "\n\t    Verify Interval: %u",
 639                         EXTRACT_16BITS(obj_tptr+2)));
 640                 ND_PRINT((ndo, "\n\t    Data links: %u",
 641                         EXTRACT_32BITS(obj_tptr+4)));
 642                 ND_PRINT((ndo, "\n\t    Encoding type: %s",
 643                         tok2str(gmpls_encoding_values, "Unknown", *(obj_tptr+8))));
 644                 ND_PRINT((ndo, "\n\t    Verify Transport Mechanism: %u (0x%x)%s",
 645                         EXTRACT_16BITS(obj_tptr+10),
 646                         EXTRACT_16BITS(obj_tptr+10),
 647                         EXTRACT_16BITS(obj_tptr+10)&8000 ? " (Payload test messages capable)" : ""));
 648                 bw.i = EXTRACT_32BITS(obj_tptr+12);
 649                 ND_PRINT((ndo, "\n\t    Transmission Rate: %.3f Mbps",bw.f*8/1000000));
 650                 ND_PRINT((ndo, "\n\t    Wavelength: %u",
 651                         EXTRACT_32BITS(obj_tptr+16)));
 652                 break;
 653
 654             default:
 655                 hexdump=TRUE;
 656             }
 657             break;
 658
 659         case LMP_OBJ_VERIFY_BEGIN_ACK:
 660             switch(lmp_obj_ctype) {
 661             case LMP_CTYPE_1:
 662                 ND_PRINT((ndo, "\n\t    Verify Dead Interval: %u"
 663                        "\n\t    Verify Transport Response: %u",
 664                        EXTRACT_16BITS(obj_tptr),
 665                        EXTRACT_16BITS(obj_tptr+2)));
 666                 break;
 667
 668             default:
 669                 hexdump=TRUE;
 670             }
 671             break;
 672
 673         case LMP_OBJ_VERIFY_ID:
 674             switch(lmp_obj_ctype) {
 675             case LMP_CTYPE_1:
 676                 ND_PRINT((ndo, "\n\t    Verify ID: %u",
 677                        EXTRACT_32BITS(obj_tptr)));
 678                 break;
 679
 680             default:
 681                 hexdump=TRUE;
 682             }
 683             break;
 684
 685         case LMP_OBJ_CHANNEL_STATUS:
 686             switch(lmp_obj_ctype) {
 687             case LMP_CTYPE_IPV4:
 688             case LMP_CTYPE_UNMD:
 689                 offset = 0;
 690                 /* Decode pairs: <Interface_ID (4 bytes), Channel_status (4 bytes)> */
 691                 while (offset < (lmp_obj_len-(int)sizeof(struct lmp_object_header)) ) {
 692                         ND_PRINT((ndo, "\n\t    Interface ID: %s (0x%08x)",
 693                         ipaddr_string(ndo, obj_tptr+offset),
 694                         EXTRACT_32BITS(obj_tptr+offset)));
 695
 696                         ND_PRINT((ndo, "\n\t\t    Active: %s (%u)",             (EXTRACT_32BITS(obj_tptr+offset+4)>>31) ?
 697                                                 "Allocated" : "Non-allocated",
 698                                 (EXTRACT_32BITS(obj_tptr+offset+4)>>31)));
 699
 700                         ND_PRINT((ndo, "\n\t\t    Direction: %s (%u)", (EXTRACT_32BITS(obj_tptr+offset+4)>>30)&0x1 ?
 701                                                 "Transmit" : "Receive",
 702                                 (EXTRACT_32BITS(obj_tptr+offset+4)>>30)&0x1));
 703
 704                         ND_PRINT((ndo, "\n\t\t    Channel Status: %s (%u)",
 705                                         tok2str(lmp_obj_channel_status_values,
 706                                         "Unknown",
 707                                         EXTRACT_32BITS(obj_tptr+offset+4)&0x3FFFFFF),
 708                         EXTRACT_32BITS(obj_tptr+offset+4)&0x3FFFFFF));
 709                         offset+=8;
 710                 }
 711                 break;
 712 #ifdef INET6
 713             case LMP_CTYPE_IPV6:
 714 #endif
 715             default:
 716                 hexdump=TRUE;
 717             }
 718             break;
 719
 720         case LMP_OBJ_CHANNEL_STATUS_REQ:
 721             switch(lmp_obj_ctype) {
 722             case LMP_CTYPE_IPV4:
 723             case LMP_CTYPE_UNMD:
 724                 offset = 0;
 725                 while (offset < (lmp_obj_len-(int)sizeof(struct lmp_object_header)) ) {
 726                         ND_PRINT((ndo, "\n\t    Interface ID: %s (0x%08x)",
 727                         ipaddr_string(ndo, obj_tptr+offset),
 728                         EXTRACT_32BITS(obj_tptr+offset)));
 729                         offset+=4;
 730                 }
 731                 break;
 732 #ifdef INET6
 733             case LMP_CTYPE_IPV6:
 734 #endif
 735             default:
 736                 hexdump=TRUE;
 737             }
 738             break;
 739
 740         case LMP_OBJ_ERROR_CODE:
 741             switch(lmp_obj_ctype) {
 742             case LMP_CTYPE_BEGIN_VERIFY_ERROR:
 743                 ND_PRINT((ndo, "\n\t    Error Code: %s",
 744                 bittok2str(lmp_obj_begin_verify_error_values,
 745                         "none",
 746                         EXTRACT_32BITS(obj_tptr))));
 747                 break;
 748
 749             case LMP_CTYPE_LINK_SUMMARY_ERROR:
 750                 ND_PRINT((ndo, "\n\t    Error Code: %s",
 751                 bittok2str(lmp_obj_link_summary_error_values,
 752                         "none",
 753                         EXTRACT_32BITS(obj_tptr))));
 754                 break;
 755             default:
 756                 hexdump=TRUE;
 757             }
 758             break;
 759
 760         case LMP_OBJ_SERVICE_CONFIG:
 761             switch (lmp_obj_ctype) {
 762             case LMP_CTYPE_SERVICE_CONFIG_SP:
 763
 764                 ND_PRINT((ndo, "\n\t Flags: %s",
 765                        bittok2str(lmp_obj_service_config_sp_flag_values,
 766                                   "none",
 767                                   EXTRACT_16BITS(obj_tptr)>>8)));
 768
 769                 ND_PRINT((ndo, "\n\t  UNI Version: %u",
 770                        EXTRACT_16BITS(obj_tptr) & 0x00FF));
 771
 772                 break;
 773
 774             case LMP_CTYPE_SERVICE_CONFIG_CPSA:
 775
 776                 link_type = EXTRACT_16BITS(obj_tptr)>>8;
 777
 778                 ND_PRINT((ndo, "\n\t Link Type: %s (%u)",
 779                        tok2str(lmp_sd_service_config_cpsa_link_type_values,
 780                                "Unknown", link_type),
 781                        link_type));
 782
 783                 if (link_type == LMP_SD_SERVICE_CONFIG_CPSA_LINK_TYPE_SDH) {
 784                     ND_PRINT((ndo, "\n\t Signal Type: %s (%u)",
 785                            tok2str(lmp_sd_service_config_cpsa_signal_type_sdh_values,
 786                                    "Unknown",
 787                                    EXTRACT_16BITS(obj_tptr) & 0x00FF),
 788                            EXTRACT_16BITS(obj_tptr) & 0x00FF));
 789                 }
 790
 791                 if (link_type == LMP_SD_SERVICE_CONFIG_CPSA_LINK_TYPE_SONET) {
 792                     ND_PRINT((ndo, "\n\t Signal Type: %s (%u)",
 793                            tok2str(lmp_sd_service_config_cpsa_signal_type_sonet_values,
 794                                    "Unknown",
 795                                    EXTRACT_16BITS(obj_tptr) & 0x00FF),
 796                            EXTRACT_16BITS(obj_tptr) & 0x00FF));
 797                 }
 798
 799                 ND_PRINT((ndo, "\n\t Transparency: %s",
 800                        bittok2str(lmp_obj_service_config_cpsa_tp_flag_values,
 801                                   "none",
 802                                   EXTRACT_16BITS(obj_tptr+2)>>8)));
 803
 804                 ND_PRINT((ndo, "\n\t Contiguous Concatenation Types: %s",
 805                        bittok2str(lmp_obj_service_config_cpsa_cct_flag_values,
 806                                   "none",
 807                                   EXTRACT_16BITS(obj_tptr+2)>>8 & 0x00FF)));
 808
 809                 ND_PRINT((ndo, "\n\t Minimum NCC: %u",
 810                        EXTRACT_16BITS(obj_tptr+4)));
 811
 812                 ND_PRINT((ndo, "\n\t Maximum NCC: %u",
 813                        EXTRACT_16BITS(obj_tptr+6)));
 814
 815                 ND_PRINT((ndo, "\n\t Minimum NVC:%u",
 816                        EXTRACT_16BITS(obj_tptr+8)));
 817
 818                 ND_PRINT((ndo, "\n\t Maximum NVC:%u",
 819                        EXTRACT_16BITS(obj_tptr+10)));
 820
 821                 ND_PRINT((ndo, "\n\t    Local Interface ID: %s (0x%08x)",
 822                        ipaddr_string(ndo, obj_tptr+12),
 823                        EXTRACT_32BITS(obj_tptr+12)));
 824
 825                 break;
 826
 827             case LMP_CTYPE_SERVICE_CONFIG_TRANSPARENCY_TCM:
 828
 829                 ND_PRINT((ndo, "\n\t Transparency Flags: %s",
 830                        bittok2str(
 831                            lmp_obj_service_config_nsa_transparency_flag_values,
 832                            "none",
 833                            EXTRACT_32BITS(obj_tptr))));
 834
 835                 ND_PRINT((ndo, "\n\t TCM Monitoring Flags: %s",
 836                        bittok2str(
 837                            lmp_obj_service_config_nsa_tcm_flag_values,
 838                            "none",
 839                            EXTRACT_16BITS(obj_tptr+6) & 0x00FF)));
 840
 841                 break;
 842
 843             case LMP_CTYPE_SERVICE_CONFIG_NETWORK_DIVERSITY:
 844
 845                 ND_PRINT((ndo, "\n\t Diversity: Flags: %s",
 846                        bittok2str(
 847                            lmp_obj_service_config_nsa_network_diversity_flag_values,
 848                            "none",
 849                            EXTRACT_16BITS(obj_tptr+2) & 0x00FF)));
 850                 break;
 851
 852             default:
 853                 hexdump = TRUE;
 854             };
 855
 856         break;
 857
 858         default:
 859             if (ndo->ndo_vflag <= 1)
 860                 print_unknown_data(ndo,obj_tptr,"\n\t    ",obj_tlen);
 861             break;
 862         }
 863         /* do we want to see an additionally hexdump ? */
 864         if (ndo->ndo_vflag > 1 || hexdump==TRUE)
 865             print_unknown_data(ndo,tptr+sizeof(struct lmp_object_header),"\n\t    ",
 866                                lmp_obj_len-sizeof(struct lmp_object_header));
 867
 868         tptr+=lmp_obj_len;
 869         tlen-=lmp_obj_len;
 870     }
 871     return;
 872 trunc:
 873     ND_PRINT((ndo, "\n\t\t packet exceeded snapshot"));
 874 }
 875 /*
 876  * Local Variables:
 877  * c-style: whitesmith
 878  * c-basic-offset: 8
 879  * End:
 880  */