print-lmp.c revision 1.8
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 #include <sys/cdefs.h> 21 #ifndef lint 22 __RCSID("$NetBSD: print-lmp.c,v 1.8 2017/01/24 23:29:14 christos Exp $"); 23 #endif 24 25 #ifdef HAVE_CONFIG_H 26 #include "config.h" 27 #endif 28 29 #include <netdissect-stdinc.h> 30 31 #include "netdissect.h" 32 #include "extract.h" 33 #include "addrtoname.h" 34 #include "gmpls.h" 35 36 /* 37 * LMP 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 * | Vers | (Reserved) | Flags | Msg Type | 43 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 44 * | LMP Length | (Reserved) | 45 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 46 */ 47 48 struct lmp_common_header { 49 uint8_t version_res[2]; 50 uint8_t flags; 51 uint8_t msg_type; 52 uint8_t length[2]; 53 uint8_t reserved[2]; 54 }; 55 56 #define LMP_VERSION 1 57 #define LMP_EXTRACT_VERSION(x) (((x)&0xf0)>>4) 58 59 static const struct tok lmp_header_flag_values[] = { 60 { 0x01, "Control Channel Down"}, 61 { 0x02, "LMP restart"}, 62 { 0, NULL} 63 }; 64 65 static const struct tok lmp_obj_te_link_flag_values[] = { 66 { 0x01, "Fault Management Supported"}, 67 { 0x02, "Link Verification Supported"}, 68 { 0, NULL} 69 }; 70 71 static const struct tok lmp_obj_data_link_flag_values[] = { 72 { 0x01, "Data Link Port"}, 73 { 0x02, "Allocated for user traffic"}, 74 { 0x04, "Failed link"}, 75 { 0, NULL} 76 }; 77 78 static const struct tok lmp_obj_channel_status_values[] = { 79 { 1, "Signal Okay"}, 80 { 2, "Signal Degraded"}, 81 { 3, "Signal Fail"}, 82 { 0, NULL} 83 }; 84 85 static const struct tok lmp_obj_begin_verify_flag_values[] = { 86 { 0x0001, "Verify all links"}, 87 { 0x0002, "Data link type"}, 88 { 0, NULL} 89 }; 90 91 static const struct tok lmp_obj_begin_verify_error_values[] = { 92 { 0x01, "Link Verification Procedure Not supported"}, 93 { 0x02, "Unwilling to verify"}, 94 { 0x04, "Unsupported verification transport mechanism"}, 95 { 0x08, "Link-Id configuration error"}, 96 { 0x10, "Unknown object c-type"}, 97 { 0, NULL} 98 }; 99 100 static const struct tok lmp_obj_link_summary_error_values[] = { 101 { 0x01, "Unacceptable non-negotiable LINK-SUMMARY parameters"}, 102 { 0x02, "Renegotiate LINK-SUMMARY parameters"}, 103 { 0x04, "Invalid TE-LINK Object"}, 104 { 0x08, "Invalid DATA-LINK Object"}, 105 { 0x10, "Unknown TE-LINK Object c-type"}, 106 { 0x20, "Unknown DATA-LINK Object c-type"}, 107 { 0, NULL} 108 }; 109 110 /* Service Config Supported Protocols Flags */ 111 static const struct tok lmp_obj_service_config_sp_flag_values[] = { 112 { 0x01, "RSVP Supported"}, 113 { 0x02, "LDP Supported"}, 114 { 0, NULL} 115 }; 116 117 /* Service Config Client Port Service Attribute Transparency Flags */ 118 static const struct tok lmp_obj_service_config_cpsa_tp_flag_values[] = { 119 { 0x01, "Path/VC Overhead Transparency Supported"}, 120 { 0x02, "Line/MS Overhead Transparency Supported"}, 121 { 0x04, "Section/RS Overhead Transparency Supported"}, 122 { 0, NULL} 123 }; 124 125 /* Service Config Client Port Service Attribute Contiguous Concatenation Types Flags */ 126 static const struct tok lmp_obj_service_config_cpsa_cct_flag_values[] = { 127 { 0x01, "Contiguous Concatenation Types Supported"}, 128 { 0, NULL} 129 }; 130 131 /* Service Config Network Service Attributes Transparency Flags */ 132 static const struct tok lmp_obj_service_config_nsa_transparency_flag_values[] = { 133 { 0x01, "Standard SOH/RSOH Transparency Supported"}, 134 { 0x02, "Standard LOH/MSOH Transparency Supported"}, 135 { 0, NULL} 136 }; 137 138 /* Service Config Network Service Attributes TCM Monitoring Flags */ 139 static const struct tok lmp_obj_service_config_nsa_tcm_flag_values[] = { 140 { 0x01, "Transparent Tandem Connection Monitoring Supported"}, 141 { 0, NULL} 142 }; 143 144 /* Network Service Attributes Network Diversity Flags */ 145 static const struct tok lmp_obj_service_config_nsa_network_diversity_flag_values[] = { 146 { 0x01, "Node Diversity Supported"}, 147 { 0x02, "Link Diversity Supported"}, 148 { 0x04, "SRLG Diversity Supported"}, 149 { 0, NULL} 150 }; 151 152 #define LMP_MSGTYPE_CONFIG 1 153 #define LMP_MSGTYPE_CONFIG_ACK 2 154 #define LMP_MSGTYPE_CONFIG_NACK 3 155 #define LMP_MSGTYPE_HELLO 4 156 #define LMP_MSGTYPE_VERIFY_BEGIN 5 157 #define LMP_MSGTYPE_VERIFY_BEGIN_ACK 6 158 #define LMP_MSGTYPE_VERIFY_BEGIN_NACK 7 159 #define LMP_MSGTYPE_VERIFY_END 8 160 #define LMP_MSGTYPE_VERIFY_END_ACK 9 161 #define LMP_MSGTYPE_TEST 10 162 #define LMP_MSGTYPE_TEST_STATUS_SUCCESS 11 163 #define LMP_MSGTYPE_TEST_STATUS_FAILURE 12 164 #define LMP_MSGTYPE_TEST_STATUS_ACK 13 165 #define LMP_MSGTYPE_LINK_SUMMARY 14 166 #define LMP_MSGTYPE_LINK_SUMMARY_ACK 15 167 #define LMP_MSGTYPE_LINK_SUMMARY_NACK 16 168 #define LMP_MSGTYPE_CHANNEL_STATUS 17 169 #define LMP_MSGTYPE_CHANNEL_STATUS_ACK 18 170 #define LMP_MSGTYPE_CHANNEL_STATUS_REQ 19 171 #define LMP_MSGTYPE_CHANNEL_STATUS_RESP 20 172 /* LMP Service Discovery message types defined by UNI 1.0 */ 173 #define LMP_MSGTYPE_SERVICE_CONFIG 50 174 #define LMP_MSGTYPE_SERVICE_CONFIG_ACK 51 175 #define LMP_MSGTYPE_SERVICE_CONFIG_NACK 52 176 177 static const struct tok lmp_msg_type_values[] = { 178 { LMP_MSGTYPE_CONFIG, "Config"}, 179 { LMP_MSGTYPE_CONFIG_ACK, "Config ACK"}, 180 { LMP_MSGTYPE_CONFIG_NACK, "Config NACK"}, 181 { LMP_MSGTYPE_HELLO, "Hello"}, 182 { LMP_MSGTYPE_VERIFY_BEGIN, "Begin Verify"}, 183 { LMP_MSGTYPE_VERIFY_BEGIN_ACK, "Begin Verify ACK"}, 184 { LMP_MSGTYPE_VERIFY_BEGIN_NACK, "Begin Verify NACK"}, 185 { LMP_MSGTYPE_VERIFY_END, "End Verify"}, 186 { LMP_MSGTYPE_VERIFY_END_ACK, "End Verify ACK"}, 187 { LMP_MSGTYPE_TEST, "Test"}, 188 { LMP_MSGTYPE_TEST_STATUS_SUCCESS, "Test Status Success"}, 189 { LMP_MSGTYPE_TEST_STATUS_FAILURE, "Test Status Failure"}, 190 { LMP_MSGTYPE_TEST_STATUS_ACK, "Test Status ACK"}, 191 { LMP_MSGTYPE_LINK_SUMMARY, "Link Summary"}, 192 { LMP_MSGTYPE_LINK_SUMMARY_ACK, "Link Summary ACK"}, 193 { LMP_MSGTYPE_LINK_SUMMARY_NACK, "Link Summary NACK"}, 194 { LMP_MSGTYPE_CHANNEL_STATUS, "Channel Status"}, 195 { LMP_MSGTYPE_CHANNEL_STATUS_ACK, "Channel Status ACK"}, 196 { LMP_MSGTYPE_CHANNEL_STATUS_REQ, "Channel Status Request"}, 197 { LMP_MSGTYPE_CHANNEL_STATUS_RESP, "Channel Status Response"}, 198 { LMP_MSGTYPE_SERVICE_CONFIG, "Service Config"}, 199 { LMP_MSGTYPE_SERVICE_CONFIG_ACK, "Service Config ACK"}, 200 { LMP_MSGTYPE_SERVICE_CONFIG_NACK, "Service Config NACK"}, 201 { 0, NULL} 202 }; 203 204 /* 205 * LMP object header 206 * 207 * 0 1 2 3 208 * 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 1 209 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 210 * |N| C-Type | Class | Length | 211 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 212 * | | 213 * // (object contents) // 214 * | | 215 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 216 */ 217 218 struct lmp_object_header { 219 uint8_t ctype; 220 uint8_t class_num; 221 uint8_t length[2]; 222 }; 223 224 #define LMP_OBJ_CC_ID 1 225 #define LMP_OBJ_NODE_ID 2 226 #define LMP_OBJ_LINK_ID 3 227 #define LMP_OBJ_INTERFACE_ID 4 228 #define LMP_OBJ_MESSAGE_ID 5 229 #define LMP_OBJ_CONFIG 6 230 #define LMP_OBJ_HELLO 7 231 #define LMP_OBJ_VERIFY_BEGIN 8 232 #define LMP_OBJ_VERIFY_BEGIN_ACK 9 233 #define LMP_OBJ_VERIFY_ID 10 234 #define LMP_OBJ_TE_LINK 11 235 #define LMP_OBJ_DATA_LINK 12 236 #define LMP_OBJ_CHANNEL_STATUS 13 237 #define LMP_OBJ_CHANNEL_STATUS_REQ 14 238 #define LMP_OBJ_ERROR_CODE 20 239 240 #define LMP_OBJ_SERVICE_CONFIG 51 /* defined in UNI 1.0 */ 241 242 static const struct tok lmp_obj_values[] = { 243 { LMP_OBJ_CC_ID, "Control Channel ID" }, 244 { LMP_OBJ_NODE_ID, "Node ID" }, 245 { LMP_OBJ_LINK_ID, "Link ID" }, 246 { LMP_OBJ_INTERFACE_ID, "Interface ID" }, 247 { LMP_OBJ_MESSAGE_ID, "Message ID" }, 248 { LMP_OBJ_CONFIG, "Configuration" }, 249 { LMP_OBJ_HELLO, "Hello" }, 250 { LMP_OBJ_VERIFY_BEGIN, "Verify Begin" }, 251 { LMP_OBJ_VERIFY_BEGIN_ACK, "Verify Begin ACK" }, 252 { LMP_OBJ_VERIFY_ID, "Verify ID" }, 253 { LMP_OBJ_TE_LINK, "TE Link" }, 254 { LMP_OBJ_DATA_LINK, "Data Link" }, 255 { LMP_OBJ_CHANNEL_STATUS, "Channel Status" }, 256 { LMP_OBJ_CHANNEL_STATUS_REQ, "Channel Status Request" }, 257 { LMP_OBJ_ERROR_CODE, "Error Code" }, 258 { LMP_OBJ_SERVICE_CONFIG, "Service Config" }, 259 260 { 0, NULL} 261 }; 262 263 #define INT_SWITCHING_TYPE_SUBOBJ 1 264 #define WAVELENGTH_SUBOBJ 2 265 266 static const struct tok lmp_data_link_subobj[] = { 267 { INT_SWITCHING_TYPE_SUBOBJ, "Interface Switching Type" }, 268 { WAVELENGTH_SUBOBJ , "Wavelength" }, 269 { 0, NULL} 270 }; 271 272 #define LMP_CTYPE_IPV4 1 273 #define LMP_CTYPE_IPV6 2 274 275 #define LMP_CTYPE_LOC 1 276 #define LMP_CTYPE_RMT 2 277 #define LMP_CTYPE_UNMD 3 278 279 #define LMP_CTYPE_IPV4_LOC 1 280 #define LMP_CTYPE_IPV4_RMT 2 281 #define LMP_CTYPE_IPV6_LOC 3 282 #define LMP_CTYPE_IPV6_RMT 4 283 #define LMP_CTYPE_UNMD_LOC 5 284 #define LMP_CTYPE_UNMD_RMT 6 285 286 #define LMP_CTYPE_1 1 287 #define LMP_CTYPE_2 2 288 289 #define LMP_CTYPE_HELLO_CONFIG 1 290 #define LMP_CTYPE_HELLO 1 291 292 #define LMP_CTYPE_BEGIN_VERIFY_ERROR 1 293 #define LMP_CTYPE_LINK_SUMMARY_ERROR 2 294 295 /* C-Types for Service Config Object */ 296 #define LMP_CTYPE_SERVICE_CONFIG_SP 1 297 #define LMP_CTYPE_SERVICE_CONFIG_CPSA 2 298 #define LMP_CTYPE_SERVICE_CONFIG_TRANSPARENCY_TCM 3 299 #define LMP_CTYPE_SERVICE_CONFIG_NETWORK_DIVERSITY 4 300 301 /* 302 * Different link types allowed in the Client Port Service Attributes 303 * subobject defined for LMP Service Discovery in the UNI 1.0 spec 304 */ 305 #define LMP_SD_SERVICE_CONFIG_CPSA_LINK_TYPE_SDH 5 /* UNI 1.0 Sec 9.4.2 */ 306 #define LMP_SD_SERVICE_CONFIG_CPSA_LINK_TYPE_SONET 6 /* UNI 1.0 Sec 9.4.2 */ 307 308 /* 309 * the ctypes are not globally unique so for 310 * translating it to strings we build a table based 311 * on objects offsetted by the ctype 312 */ 313 314 static const struct tok lmp_ctype_values[] = { 315 { 256*LMP_OBJ_CC_ID+LMP_CTYPE_LOC, "Local" }, 316 { 256*LMP_OBJ_CC_ID+LMP_CTYPE_RMT, "Remote" }, 317 { 256*LMP_OBJ_NODE_ID+LMP_CTYPE_LOC, "Local" }, 318 { 256*LMP_OBJ_NODE_ID+LMP_CTYPE_RMT, "Remote" }, 319 { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_IPV4_LOC, "IPv4 Local" }, 320 { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_IPV4_RMT, "IPv4 Remote" }, 321 { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_IPV6_LOC, "IPv6 Local" }, 322 { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_IPV6_RMT, "IPv6 Remote" }, 323 { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_UNMD_LOC, "Unnumbered Local" }, 324 { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_UNMD_RMT, "Unnumbered Remote" }, 325 { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_IPV4_LOC, "IPv4 Local" }, 326 { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_IPV4_RMT, "IPv4 Remote" }, 327 { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_IPV6_LOC, "IPv6 Local" }, 328 { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_IPV6_RMT, "IPv6 Remote" }, 329 { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_UNMD_LOC, "Unnumbered Local" }, 330 { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_UNMD_RMT, "Unnumbered Remote" }, 331 { 256*LMP_OBJ_MESSAGE_ID+LMP_CTYPE_1, "1" }, 332 { 256*LMP_OBJ_MESSAGE_ID+LMP_CTYPE_2, "2" }, 333 { 256*LMP_OBJ_CONFIG+LMP_CTYPE_1, "1" }, 334 { 256*LMP_OBJ_HELLO+LMP_CTYPE_1, "1" }, 335 { 256*LMP_OBJ_VERIFY_BEGIN+LMP_CTYPE_1, "1" }, 336 { 256*LMP_OBJ_VERIFY_BEGIN_ACK+LMP_CTYPE_1, "1" }, 337 { 256*LMP_OBJ_VERIFY_ID+LMP_CTYPE_1, "1" }, 338 { 256*LMP_OBJ_TE_LINK+LMP_CTYPE_IPV4, "IPv4" }, 339 { 256*LMP_OBJ_TE_LINK+LMP_CTYPE_IPV6, "IPv6" }, 340 { 256*LMP_OBJ_TE_LINK+LMP_CTYPE_UNMD, "Unnumbered" }, 341 { 256*LMP_OBJ_DATA_LINK+LMP_CTYPE_IPV4, "IPv4" }, 342 { 256*LMP_OBJ_DATA_LINK+LMP_CTYPE_IPV6, "IPv6" }, 343 { 256*LMP_OBJ_DATA_LINK+LMP_CTYPE_UNMD, "Unnumbered" }, 344 { 256*LMP_OBJ_CHANNEL_STATUS+LMP_CTYPE_IPV4, "IPv4" }, 345 { 256*LMP_OBJ_CHANNEL_STATUS+LMP_CTYPE_IPV6, "IPv6" }, 346 { 256*LMP_OBJ_CHANNEL_STATUS+LMP_CTYPE_UNMD, "Unnumbered" }, 347 { 256*LMP_OBJ_CHANNEL_STATUS_REQ+LMP_CTYPE_IPV4, "IPv4" }, 348 { 256*LMP_OBJ_CHANNEL_STATUS_REQ+LMP_CTYPE_IPV6, "IPv6" }, 349 { 256*LMP_OBJ_CHANNEL_STATUS_REQ+LMP_CTYPE_UNMD, "Unnumbered" }, 350 { 256*LMP_OBJ_ERROR_CODE+LMP_CTYPE_1, "1" }, 351 { 256*LMP_OBJ_ERROR_CODE+LMP_CTYPE_2, "2" }, 352 { 256*LMP_OBJ_SERVICE_CONFIG+LMP_CTYPE_SERVICE_CONFIG_SP, "1" }, 353 { 256*LMP_OBJ_SERVICE_CONFIG+LMP_CTYPE_SERVICE_CONFIG_CPSA, "2" }, 354 { 256*LMP_OBJ_SERVICE_CONFIG+LMP_CTYPE_SERVICE_CONFIG_TRANSPARENCY_TCM, "3" }, 355 { 256*LMP_OBJ_SERVICE_CONFIG+LMP_CTYPE_SERVICE_CONFIG_NETWORK_DIVERSITY, "4" }, 356 { 0, NULL} 357 }; 358 359 void 360 lmp_print(netdissect_options *ndo, 361 register const u_char *pptr, register u_int len) 362 { 363 const struct lmp_common_header *lmp_com_header; 364 const struct lmp_object_header *lmp_obj_header; 365 const u_char *tptr,*obj_tptr; 366 int tlen,lmp_obj_len,lmp_obj_ctype,obj_tlen; 367 int hexdump; 368 int offset,subobj_type,subobj_len,total_subobj_len; 369 int link_type; 370 371 union { /* int to float conversion buffer */ 372 float f; 373 uint32_t i; 374 } bw; 375 376 tptr=pptr; 377 lmp_com_header = (const struct lmp_common_header *)pptr; 378 ND_TCHECK(*lmp_com_header); 379 380 /* 381 * Sanity checking of the header. 382 */ 383 if (LMP_EXTRACT_VERSION(lmp_com_header->version_res[0]) != LMP_VERSION) { 384 ND_PRINT((ndo, "LMP version %u packet not supported", 385 LMP_EXTRACT_VERSION(lmp_com_header->version_res[0]))); 386 return; 387 } 388 389 /* in non-verbose mode just lets print the basic Message Type*/ 390 if (ndo->ndo_vflag < 1) { 391 ND_PRINT((ndo, "LMPv%u %s Message, length: %u", 392 LMP_EXTRACT_VERSION(lmp_com_header->version_res[0]), 393 tok2str(lmp_msg_type_values, "unknown (%u)",lmp_com_header->msg_type), 394 len)); 395 return; 396 } 397 398 /* ok they seem to want to know everything - lets fully decode it */ 399 400 tlen=EXTRACT_16BITS(lmp_com_header->length); 401 402 ND_PRINT((ndo, "\n\tLMPv%u, msg-type: %s, Flags: [%s], length: %u", 403 LMP_EXTRACT_VERSION(lmp_com_header->version_res[0]), 404 tok2str(lmp_msg_type_values, "unknown, type: %u",lmp_com_header->msg_type), 405 bittok2str(lmp_header_flag_values,"none",lmp_com_header->flags), 406 tlen)); 407 408 tptr+=sizeof(const struct lmp_common_header); 409 tlen-=sizeof(const struct lmp_common_header); 410 411 while(tlen>0) { 412 /* did we capture enough for fully decoding the object header ? */ 413 ND_TCHECK2(*tptr, sizeof(struct lmp_object_header)); 414 415 lmp_obj_header = (const struct lmp_object_header *)tptr; 416 lmp_obj_len=EXTRACT_16BITS(lmp_obj_header->length); 417 lmp_obj_ctype=(lmp_obj_header->ctype)&0x7f; 418 419 if(lmp_obj_len % 4 || lmp_obj_len < 4) 420 return; 421 422 ND_PRINT((ndo, "\n\t %s Object (%u), Class-Type: %s (%u) Flags: [%snegotiable], length: %u", 423 tok2str(lmp_obj_values, 424 "Unknown", 425 lmp_obj_header->class_num), 426 lmp_obj_header->class_num, 427 tok2str(lmp_ctype_values, 428 "Unknown", 429 ((lmp_obj_header->class_num)<<8)+lmp_obj_ctype), 430 lmp_obj_ctype, 431 (lmp_obj_header->ctype)&0x80 ? "" : "non-", 432 lmp_obj_len)); 433 434 obj_tptr=tptr+sizeof(struct lmp_object_header); 435 obj_tlen=lmp_obj_len-sizeof(struct lmp_object_header); 436 437 /* did we capture enough for fully decoding the object ? */ 438 ND_TCHECK2(*tptr, lmp_obj_len); 439 hexdump=FALSE; 440 441 switch(lmp_obj_header->class_num) { 442 443 case LMP_OBJ_CC_ID: 444 switch(lmp_obj_ctype) { 445 case LMP_CTYPE_LOC: 446 case LMP_CTYPE_RMT: 447 ND_PRINT((ndo, "\n\t Control Channel ID: %u (0x%08x)", 448 EXTRACT_32BITS(obj_tptr), 449 EXTRACT_32BITS(obj_tptr))); 450 break; 451 452 default: 453 hexdump=TRUE; 454 } 455 break; 456 457 case LMP_OBJ_LINK_ID: 458 case LMP_OBJ_INTERFACE_ID: 459 switch(lmp_obj_ctype) { 460 case LMP_CTYPE_IPV4_LOC: 461 case LMP_CTYPE_IPV4_RMT: 462 ND_PRINT((ndo, "\n\t IPv4 Link ID: %s (0x%08x)", 463 ipaddr_string(ndo, obj_tptr), 464 EXTRACT_32BITS(obj_tptr))); 465 break; 466 case LMP_CTYPE_IPV6_LOC: 467 case LMP_CTYPE_IPV6_RMT: 468 ND_PRINT((ndo, "\n\t IPv6 Link ID: %s (0x%08x)", 469 ip6addr_string(ndo, obj_tptr), 470 EXTRACT_32BITS(obj_tptr))); 471 break; 472 case LMP_CTYPE_UNMD_LOC: 473 case LMP_CTYPE_UNMD_RMT: 474 ND_PRINT((ndo, "\n\t Link ID: %u (0x%08x)", 475 EXTRACT_32BITS(obj_tptr), 476 EXTRACT_32BITS(obj_tptr))); 477 break; 478 default: 479 hexdump=TRUE; 480 } 481 break; 482 483 case LMP_OBJ_MESSAGE_ID: 484 switch(lmp_obj_ctype) { 485 case LMP_CTYPE_1: 486 ND_PRINT((ndo, "\n\t Message ID: %u (0x%08x)", 487 EXTRACT_32BITS(obj_tptr), 488 EXTRACT_32BITS(obj_tptr))); 489 break; 490 case LMP_CTYPE_2: 491 ND_PRINT((ndo, "\n\t Message ID Ack: %u (0x%08x)", 492 EXTRACT_32BITS(obj_tptr), 493 EXTRACT_32BITS(obj_tptr))); 494 break; 495 default: 496 hexdump=TRUE; 497 } 498 break; 499 500 case LMP_OBJ_NODE_ID: 501 switch(lmp_obj_ctype) { 502 case LMP_CTYPE_LOC: 503 case LMP_CTYPE_RMT: 504 ND_PRINT((ndo, "\n\t Node ID: %s (0x%08x)", 505 ipaddr_string(ndo, obj_tptr), 506 EXTRACT_32BITS(obj_tptr))); 507 break; 508 509 default: 510 hexdump=TRUE; 511 } 512 break; 513 514 case LMP_OBJ_CONFIG: 515 switch(lmp_obj_ctype) { 516 case LMP_CTYPE_HELLO_CONFIG: 517 ND_PRINT((ndo, "\n\t Hello Interval: %u\n\t Hello Dead Interval: %u", 518 EXTRACT_16BITS(obj_tptr), 519 EXTRACT_16BITS(obj_tptr+2))); 520 break; 521 522 default: 523 hexdump=TRUE; 524 } 525 break; 526 527 case LMP_OBJ_HELLO: 528 switch(lmp_obj_ctype) { 529 case LMP_CTYPE_HELLO: 530 ND_PRINT((ndo, "\n\t Tx Seq: %u, Rx Seq: %u", 531 EXTRACT_32BITS(obj_tptr), 532 EXTRACT_32BITS(obj_tptr+4))); 533 break; 534 535 default: 536 hexdump=TRUE; 537 } 538 break; 539 540 case LMP_OBJ_TE_LINK: 541 ND_PRINT((ndo, "\n\t Flags: [%s]", 542 bittok2str(lmp_obj_te_link_flag_values, 543 "none", 544 EXTRACT_16BITS(obj_tptr)>>8))); 545 546 switch(lmp_obj_ctype) { 547 case LMP_CTYPE_IPV4: 548 ND_PRINT((ndo, "\n\t Local Link-ID: %s (0x%08x)" 549 "\n\t Remote Link-ID: %s (0x%08x)", 550 ipaddr_string(ndo, obj_tptr+4), 551 EXTRACT_32BITS(obj_tptr+4), 552 ipaddr_string(ndo, obj_tptr+8), 553 EXTRACT_32BITS(obj_tptr+8))); 554 break; 555 556 case LMP_CTYPE_IPV6: 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 case LMP_CTYPE_IPV6: 624 default: 625 hexdump=TRUE; 626 } 627 break; 628 629 case LMP_OBJ_VERIFY_BEGIN: 630 switch(lmp_obj_ctype) { 631 case LMP_CTYPE_1: 632 ND_PRINT((ndo, "\n\t Flags: %s", 633 bittok2str(lmp_obj_begin_verify_flag_values, 634 "none", 635 EXTRACT_16BITS(obj_tptr)))); 636 ND_PRINT((ndo, "\n\t Verify Interval: %u", 637 EXTRACT_16BITS(obj_tptr+2))); 638 ND_PRINT((ndo, "\n\t Data links: %u", 639 EXTRACT_32BITS(obj_tptr+4))); 640 ND_PRINT((ndo, "\n\t Encoding type: %s", 641 tok2str(gmpls_encoding_values, "Unknown", *(obj_tptr+8)))); 642 ND_PRINT((ndo, "\n\t Verify Transport Mechanism: %u (0x%x)%s", 643 EXTRACT_16BITS(obj_tptr+10), 644 EXTRACT_16BITS(obj_tptr+10), 645 EXTRACT_16BITS(obj_tptr+10)&8000 ? " (Payload test messages capable)" : "")); 646 bw.i = EXTRACT_32BITS(obj_tptr+12); 647 ND_PRINT((ndo, "\n\t Transmission Rate: %.3f Mbps",bw.f*8/1000000)); 648 ND_PRINT((ndo, "\n\t Wavelength: %u", 649 EXTRACT_32BITS(obj_tptr+16))); 650 break; 651 652 default: 653 hexdump=TRUE; 654 } 655 break; 656 657 case LMP_OBJ_VERIFY_BEGIN_ACK: 658 switch(lmp_obj_ctype) { 659 case LMP_CTYPE_1: 660 ND_PRINT((ndo, "\n\t Verify Dead Interval: %u" 661 "\n\t Verify Transport Response: %u", 662 EXTRACT_16BITS(obj_tptr), 663 EXTRACT_16BITS(obj_tptr+2))); 664 break; 665 666 default: 667 hexdump=TRUE; 668 } 669 break; 670 671 case LMP_OBJ_VERIFY_ID: 672 switch(lmp_obj_ctype) { 673 case LMP_CTYPE_1: 674 ND_PRINT((ndo, "\n\t Verify ID: %u", 675 EXTRACT_32BITS(obj_tptr))); 676 break; 677 678 default: 679 hexdump=TRUE; 680 } 681 break; 682 683 case LMP_OBJ_CHANNEL_STATUS: 684 switch(lmp_obj_ctype) { 685 case LMP_CTYPE_IPV4: 686 case LMP_CTYPE_UNMD: 687 offset = 0; 688 /* Decode pairs: <Interface_ID (4 bytes), Channel_status (4 bytes)> */ 689 while (offset < (lmp_obj_len-(int)sizeof(struct lmp_object_header)) ) { 690 ND_PRINT((ndo, "\n\t Interface ID: %s (0x%08x)", 691 ipaddr_string(ndo, obj_tptr+offset), 692 EXTRACT_32BITS(obj_tptr+offset))); 693 694 ND_PRINT((ndo, "\n\t\t Active: %s (%u)", (EXTRACT_32BITS(obj_tptr+offset+4)>>31) ? 695 "Allocated" : "Non-allocated", 696 (EXTRACT_32BITS(obj_tptr+offset+4)>>31))); 697 698 ND_PRINT((ndo, "\n\t\t Direction: %s (%u)", (EXTRACT_32BITS(obj_tptr+offset+4)>>30)&0x1 ? 699 "Transmit" : "Receive", 700 (EXTRACT_32BITS(obj_tptr+offset+4)>>30)&0x1)); 701 702 ND_PRINT((ndo, "\n\t\t Channel Status: %s (%u)", 703 tok2str(lmp_obj_channel_status_values, 704 "Unknown", 705 EXTRACT_32BITS(obj_tptr+offset+4)&0x3FFFFFF), 706 EXTRACT_32BITS(obj_tptr+offset+4)&0x3FFFFFF)); 707 offset+=8; 708 } 709 break; 710 case LMP_CTYPE_IPV6: 711 default: 712 hexdump=TRUE; 713 } 714 break; 715 716 case LMP_OBJ_CHANNEL_STATUS_REQ: 717 switch(lmp_obj_ctype) { 718 case LMP_CTYPE_IPV4: 719 case LMP_CTYPE_UNMD: 720 offset = 0; 721 while (offset < (lmp_obj_len-(int)sizeof(struct lmp_object_header)) ) { 722 ND_PRINT((ndo, "\n\t Interface ID: %s (0x%08x)", 723 ipaddr_string(ndo, obj_tptr+offset), 724 EXTRACT_32BITS(obj_tptr+offset))); 725 offset+=4; 726 } 727 break; 728 case LMP_CTYPE_IPV6: 729 default: 730 hexdump=TRUE; 731 } 732 break; 733 734 case LMP_OBJ_ERROR_CODE: 735 switch(lmp_obj_ctype) { 736 case LMP_CTYPE_BEGIN_VERIFY_ERROR: 737 ND_PRINT((ndo, "\n\t Error Code: %s", 738 bittok2str(lmp_obj_begin_verify_error_values, 739 "none", 740 EXTRACT_32BITS(obj_tptr)))); 741 break; 742 743 case LMP_CTYPE_LINK_SUMMARY_ERROR: 744 ND_PRINT((ndo, "\n\t Error Code: %s", 745 bittok2str(lmp_obj_link_summary_error_values, 746 "none", 747 EXTRACT_32BITS(obj_tptr)))); 748 break; 749 default: 750 hexdump=TRUE; 751 } 752 break; 753 754 case LMP_OBJ_SERVICE_CONFIG: 755 switch (lmp_obj_ctype) { 756 case LMP_CTYPE_SERVICE_CONFIG_SP: 757 758 ND_PRINT((ndo, "\n\t Flags: %s", 759 bittok2str(lmp_obj_service_config_sp_flag_values, 760 "none", 761 EXTRACT_16BITS(obj_tptr)>>8))); 762 763 ND_PRINT((ndo, "\n\t UNI Version: %u", 764 EXTRACT_16BITS(obj_tptr) & 0x00FF)); 765 766 break; 767 768 case LMP_CTYPE_SERVICE_CONFIG_CPSA: 769 770 link_type = EXTRACT_16BITS(obj_tptr)>>8; 771 772 ND_PRINT((ndo, "\n\t Link Type: %s (%u)", 773 tok2str(lmp_sd_service_config_cpsa_link_type_values, 774 "Unknown", link_type), 775 link_type)); 776 777 if (link_type == LMP_SD_SERVICE_CONFIG_CPSA_LINK_TYPE_SDH) { 778 ND_PRINT((ndo, "\n\t Signal Type: %s (%u)", 779 tok2str(lmp_sd_service_config_cpsa_signal_type_sdh_values, 780 "Unknown", 781 EXTRACT_16BITS(obj_tptr) & 0x00FF), 782 EXTRACT_16BITS(obj_tptr) & 0x00FF)); 783 } 784 785 if (link_type == LMP_SD_SERVICE_CONFIG_CPSA_LINK_TYPE_SONET) { 786 ND_PRINT((ndo, "\n\t Signal Type: %s (%u)", 787 tok2str(lmp_sd_service_config_cpsa_signal_type_sonet_values, 788 "Unknown", 789 EXTRACT_16BITS(obj_tptr) & 0x00FF), 790 EXTRACT_16BITS(obj_tptr) & 0x00FF)); 791 } 792 793 ND_PRINT((ndo, "\n\t Transparency: %s", 794 bittok2str(lmp_obj_service_config_cpsa_tp_flag_values, 795 "none", 796 EXTRACT_16BITS(obj_tptr+2)>>8))); 797 798 ND_PRINT((ndo, "\n\t Contiguous Concatenation Types: %s", 799 bittok2str(lmp_obj_service_config_cpsa_cct_flag_values, 800 "none", 801 EXTRACT_16BITS(obj_tptr+2)>>8 & 0x00FF))); 802 803 ND_PRINT((ndo, "\n\t Minimum NCC: %u", 804 EXTRACT_16BITS(obj_tptr+4))); 805 806 ND_PRINT((ndo, "\n\t Maximum NCC: %u", 807 EXTRACT_16BITS(obj_tptr+6))); 808 809 ND_PRINT((ndo, "\n\t Minimum NVC:%u", 810 EXTRACT_16BITS(obj_tptr+8))); 811 812 ND_PRINT((ndo, "\n\t Maximum NVC:%u", 813 EXTRACT_16BITS(obj_tptr+10))); 814 815 ND_PRINT((ndo, "\n\t Local Interface ID: %s (0x%08x)", 816 ipaddr_string(ndo, obj_tptr+12), 817 EXTRACT_32BITS(obj_tptr+12))); 818 819 break; 820 821 case LMP_CTYPE_SERVICE_CONFIG_TRANSPARENCY_TCM: 822 823 ND_PRINT((ndo, "\n\t Transparency Flags: %s", 824 bittok2str( 825 lmp_obj_service_config_nsa_transparency_flag_values, 826 "none", 827 EXTRACT_32BITS(obj_tptr)))); 828 829 ND_PRINT((ndo, "\n\t TCM Monitoring Flags: %s", 830 bittok2str( 831 lmp_obj_service_config_nsa_tcm_flag_values, 832 "none", 833 EXTRACT_16BITS(obj_tptr+6) & 0x00FF))); 834 835 break; 836 837 case LMP_CTYPE_SERVICE_CONFIG_NETWORK_DIVERSITY: 838 839 ND_PRINT((ndo, "\n\t Diversity: Flags: %s", 840 bittok2str( 841 lmp_obj_service_config_nsa_network_diversity_flag_values, 842 "none", 843 EXTRACT_16BITS(obj_tptr+2) & 0x00FF))); 844 break; 845 846 default: 847 hexdump = TRUE; 848 }; 849 850 break; 851 852 default: 853 if (ndo->ndo_vflag <= 1) 854 print_unknown_data(ndo,obj_tptr,"\n\t ",obj_tlen); 855 break; 856 } 857 /* do we want to see an additionally hexdump ? */ 858 if (ndo->ndo_vflag > 1 || hexdump==TRUE) 859 print_unknown_data(ndo,tptr+sizeof(struct lmp_object_header),"\n\t ", 860 lmp_obj_len-sizeof(struct lmp_object_header)); 861 862 tptr+=lmp_obj_len; 863 tlen-=lmp_obj_len; 864 } 865 return; 866 trunc: 867 ND_PRINT((ndo, "\n\t\t packet exceeded snapshot")); 868 } 869 /* 870 * Local Variables: 871 * c-style: whitesmith 872 * c-basic-offset: 8 873 * End: 874 */ 875
Indexes created Sat Mar 28 00:23:22 UTC 2026