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 (at) juniper.net) 16 * Support for LMP service discovery extensions (defined by UNI 1.0) added 17 * by Manu Pathak (mapathak (at) 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 */ 881
