1190203Srpaulo/* 2190203Srpaulo * Copyright (c) 1998-2006 The TCPDUMP project 3190203Srpaulo * 4190203Srpaulo * Redistribution and use in source and binary forms, with or without 5190203Srpaulo * modification, are permitted provided that: (1) source code 6190203Srpaulo * distributions retain the above copyright notice and this paragraph 7190203Srpaulo * in its entirety, and (2) distributions including binary code include 8190203Srpaulo * the above copyright notice and this paragraph in its entirety in 9190203Srpaulo * the documentation or other materials provided with the distribution. 10190203Srpaulo * THIS SOFTWARE IS PROVIDED ``AS IS'' AND 11190203Srpaulo * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT 12190203Srpaulo * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 13190203Srpaulo * FOR A PARTICULAR PURPOSE. 14190203Srpaulo * 15190203Srpaulo * Support for the IEEE Connectivity Fault Management Protocols as per 802.1ag. 16190203Srpaulo * 17190203Srpaulo * Original code by Hannes Gredler (hannes@juniper.net) 18190203Srpaulo */ 19190203Srpaulo 20190203Srpaulo#ifndef lint 21190203Srpaulostatic const char rcsid[] _U_ = 22190203Srpaulo "@(#) $Header: /tcpdump/master/tcpdump/print-cfm.c,v 1.5 2007-07-24 16:01:42 hannes Exp $"; 23190203Srpaulo#endif 24190203Srpaulo 25190203Srpaulo#ifdef HAVE_CONFIG_H 26190203Srpaulo#include "config.h" 27190203Srpaulo#endif 28190203Srpaulo 29190203Srpaulo#include <tcpdump-stdinc.h> 30190203Srpaulo 31190203Srpaulo#include <stdio.h> 32190203Srpaulo#include <stdlib.h> 33190203Srpaulo#include <string.h> 34190203Srpaulo 35190203Srpaulo#include "interface.h" 36190203Srpaulo#include "extract.h" 37190203Srpaulo#include "ether.h" 38190203Srpaulo#include "addrtoname.h" 39190203Srpaulo#include "oui.h" 40190203Srpaulo#include "af.h" 41190203Srpaulo 42190203Srpaulo/* 43190203Srpaulo * Prototypes 44190203Srpaulo */ 45190203Srpauloconst char * cfm_egress_id_string(register const u_char *); 46190203Srpauloint cfm_mgmt_addr_print(register const u_char *); 47190203Srpaulo 48190203Srpaulostruct cfm_common_header_t { 49190203Srpaulo u_int8_t mdlevel_version; 50190203Srpaulo u_int8_t opcode; 51190203Srpaulo u_int8_t flags; 52190203Srpaulo u_int8_t first_tlv_offset; 53190203Srpaulo}; 54190203Srpaulo 55190203Srpaulo#define CFM_VERSION 0 56190203Srpaulo#define CFM_EXTRACT_VERSION(x) (((x)&0x1f)) 57190203Srpaulo#define CFM_EXTRACT_MD_LEVEL(x) (((x)&0xe0)>>5) 58190203Srpaulo 59190203Srpaulo#define CFM_OPCODE_CCM 1 60190203Srpaulo#define CFM_OPCODE_LBR 2 61190203Srpaulo#define CFM_OPCODE_LBM 3 62190203Srpaulo#define CFM_OPCODE_LTR 4 63190203Srpaulo#define CFM_OPCODE_LTM 5 64190203Srpaulo 65190203Srpaulostatic const struct tok cfm_opcode_values[] = { 66190203Srpaulo { CFM_OPCODE_CCM, "Continouity Check Message"}, 67190203Srpaulo { CFM_OPCODE_LBR, "Loopback Reply"}, 68190203Srpaulo { CFM_OPCODE_LBM, "Loopback Message"}, 69190203Srpaulo { CFM_OPCODE_LTR, "Linktrace Reply"}, 70190203Srpaulo { CFM_OPCODE_LTM, "Linktrace Message"}, 71190203Srpaulo { 0, NULL} 72190203Srpaulo}; 73190203Srpaulo 74190203Srpaulo/* 75190203Srpaulo * Message Formats. 76190203Srpaulo */ 77190203Srpaulostruct cfm_ccm_t { 78190203Srpaulo u_int8_t sequence[4]; 79190203Srpaulo u_int8_t ma_epi[2]; 80190203Srpaulo u_int8_t md_nameformat; 81190203Srpaulo u_int8_t md_namelength; 82190203Srpaulo u_int8_t md_name[46]; /* md name and short ma name */ 83190203Srpaulo u_int8_t reserved_itu[16]; 84190203Srpaulo u_int8_t reserved[6]; 85190203Srpaulo}; 86190203Srpaulo 87190203Srpaulo/* 88190203Srpaulo * Timer Bases for the CCM Interval field. 89190203Srpaulo * Expressed in units of seconds. 90190203Srpaulo */ 91190203Srpauloconst float ccm_interval_base[8] = {0, 0.003333, 0.01, 0.1, 1, 10, 60, 600}; 92190203Srpaulo#define CCM_INTERVAL_MIN_MULTIPLIER 3.25 93190203Srpaulo#define CCM_INTERVAL_MAX_MULTIPLIER 3.5 94190203Srpaulo 95190203Srpaulo#define CFM_CCM_RDI_FLAG 0x80 96190203Srpaulo#define CFM_EXTRACT_CCM_INTERVAL(x) (((x)&0x07)) 97190203Srpaulo 98190203Srpaulo#define CFM_CCM_MD_FORMAT_8021 0 99190203Srpaulo#define CFM_CCM_MD_FORMAT_NONE 1 100190203Srpaulo#define CFM_CCM_MD_FORMAT_DNS 2 101190203Srpaulo#define CFM_CCM_MD_FORMAT_MAC 3 102190203Srpaulo#define CFM_CCM_MD_FORMAT_CHAR 4 103190203Srpaulo 104190203Srpaulostatic const struct tok cfm_md_nameformat_values[] = { 105190203Srpaulo { CFM_CCM_MD_FORMAT_8021, "IEEE 802.1"}, 106190203Srpaulo { CFM_CCM_MD_FORMAT_NONE, "No MD Name present"}, 107190203Srpaulo { CFM_CCM_MD_FORMAT_DNS, "DNS string"}, 108190203Srpaulo { CFM_CCM_MD_FORMAT_MAC, "MAC + 16Bit Integer"}, 109190203Srpaulo { CFM_CCM_MD_FORMAT_CHAR, "Character string"}, 110190203Srpaulo { 0, NULL} 111190203Srpaulo}; 112190203Srpaulo 113190203Srpaulo#define CFM_CCM_MA_FORMAT_8021 0 114190203Srpaulo#define CFM_CCM_MA_FORMAT_VID 1 115190203Srpaulo#define CFM_CCM_MA_FORMAT_CHAR 2 116190203Srpaulo#define CFM_CCM_MA_FORMAT_INT 3 117190203Srpaulo#define CFM_CCM_MA_FORMAT_VPN 4 118190203Srpaulo 119190203Srpaulostatic const struct tok cfm_ma_nameformat_values[] = { 120190203Srpaulo { CFM_CCM_MA_FORMAT_8021, "IEEE 802.1"}, 121190203Srpaulo { CFM_CCM_MA_FORMAT_VID, "Primary VID"}, 122190203Srpaulo { CFM_CCM_MA_FORMAT_CHAR, "Character string"}, 123190203Srpaulo { CFM_CCM_MA_FORMAT_INT, "16Bit Integer"}, 124190203Srpaulo { CFM_CCM_MA_FORMAT_VPN, "RFC2685 VPN-ID"}, 125190203Srpaulo { 0, NULL} 126190203Srpaulo}; 127190203Srpaulo 128190203Srpaulostruct cfm_lbm_t { 129190203Srpaulo u_int8_t transaction_id[4]; 130190203Srpaulo u_int8_t reserved[4]; 131190203Srpaulo}; 132190203Srpaulo 133190203Srpaulostruct cfm_ltm_t { 134190203Srpaulo u_int8_t transaction_id[4]; 135190203Srpaulo u_int8_t egress_id[8]; 136190203Srpaulo u_int8_t ttl; 137190203Srpaulo u_int8_t original_mac[ETHER_ADDR_LEN]; 138190203Srpaulo u_int8_t target_mac[ETHER_ADDR_LEN]; 139190203Srpaulo u_int8_t reserved[3]; 140190203Srpaulo}; 141190203Srpaulo 142190203Srpaulostatic const struct tok cfm_ltm_flag_values[] = { 143190203Srpaulo { 0x80, "Use Forwarding-DB only"}, 144190203Srpaulo { 0, NULL} 145190203Srpaulo}; 146190203Srpaulo 147190203Srpaulostruct cfm_ltr_t { 148190203Srpaulo u_int8_t transaction_id[4]; 149190203Srpaulo u_int8_t last_egress_id[8]; 150190203Srpaulo u_int8_t next_egress_id[8]; 151190203Srpaulo u_int8_t ttl; 152190203Srpaulo u_int8_t replay_action; 153190203Srpaulo u_int8_t reserved[6]; 154190203Srpaulo}; 155190203Srpaulo 156190203Srpaulostatic const struct tok cfm_ltr_flag_values[] = { 157190203Srpaulo { 0x80, "Forwarded"}, 158190203Srpaulo { 0x40, "Terminal MEP"}, 159190203Srpaulo { 0, NULL} 160190203Srpaulo}; 161190203Srpaulo 162190203Srpaulostatic const struct tok cfm_ltr_replay_action_values[] = { 163190203Srpaulo { 1, "Exact Match"}, 164190203Srpaulo { 2, "Filtering DB"}, 165190203Srpaulo { 3, "MIP CCM DB"}, 166190203Srpaulo { 0, NULL} 167190203Srpaulo}; 168190203Srpaulo 169190203Srpaulo 170190203Srpaulo#define CFM_TLV_END 0 171190203Srpaulo#define CFM_TLV_SENDER_ID 1 172190203Srpaulo#define CFM_TLV_PORT_STATUS 2 173190203Srpaulo#define CFM_TLV_INTERFACE_STATUS 3 174190203Srpaulo#define CFM_TLV_DATA 4 175190203Srpaulo#define CFM_TLV_REPLY_INGRESS 5 176190203Srpaulo#define CFM_TLV_REPLY_EGRESS 6 177190203Srpaulo#define CFM_TLV_PRIVATE 31 178190203Srpaulo 179190203Srpaulostatic const struct tok cfm_tlv_values[] = { 180190203Srpaulo { CFM_TLV_END, "End"}, 181190203Srpaulo { CFM_TLV_SENDER_ID, "Sender ID"}, 182190203Srpaulo { CFM_TLV_PORT_STATUS, "Port status"}, 183190203Srpaulo { CFM_TLV_INTERFACE_STATUS, "Interface status"}, 184190203Srpaulo { CFM_TLV_DATA, "Data"}, 185190203Srpaulo { CFM_TLV_REPLY_INGRESS, "Reply Ingress"}, 186190203Srpaulo { CFM_TLV_REPLY_EGRESS, "Reply Egress"}, 187190203Srpaulo { CFM_TLV_PRIVATE, "Organization Specific"}, 188190203Srpaulo { 0, NULL} 189190203Srpaulo}; 190190203Srpaulo 191190203Srpaulo/* 192190203Srpaulo * TLVs 193190203Srpaulo */ 194190203Srpaulo 195190203Srpaulostruct cfm_tlv_header_t { 196190203Srpaulo u_int8_t type; 197190203Srpaulo u_int8_t length[2]; 198190203Srpaulo}; 199190203Srpaulo 200190203Srpaulo/* FIXME define TLV formats */ 201190203Srpaulo 202190203Srpaulostatic const struct tok cfm_tlv_port_status_values[] = { 203190203Srpaulo { 1, "Blocked"}, 204190203Srpaulo { 2, "Up"}, 205190203Srpaulo { 0, NULL} 206190203Srpaulo}; 207190203Srpaulo 208190203Srpaulostatic const struct tok cfm_tlv_interface_status_values[] = { 209190203Srpaulo { 1, "Up"}, 210190203Srpaulo { 2, "Down"}, 211190203Srpaulo { 3, "Testing"}, 212190203Srpaulo { 5, "Dormant"}, 213190203Srpaulo { 6, "not present"}, 214190203Srpaulo { 7, "lower Layer down"}, 215190203Srpaulo { 0, NULL} 216190203Srpaulo}; 217190203Srpaulo 218190203Srpaulo#define CFM_CHASSIS_ID_CHASSIS_COMPONENT 1 219190203Srpaulo#define CFM_CHASSIS_ID_INTERFACE_ALIAS 2 220190203Srpaulo#define CFM_CHASSIS_ID_PORT_COMPONENT 3 221190203Srpaulo#define CFM_CHASSIS_ID_MAC_ADDRESS 4 222190203Srpaulo#define CFM_CHASSIS_ID_NETWORK_ADDRESS 5 223190203Srpaulo#define CFM_CHASSIS_ID_INTERFACE_NAME 6 224190203Srpaulo#define CFM_CHASSIS_ID_LOCAL 7 225190203Srpaulo 226190203Srpaulostatic const struct tok cfm_tlv_senderid_chassisid_values[] = { 227190203Srpaulo { 0, "Reserved"}, 228190203Srpaulo { CFM_CHASSIS_ID_CHASSIS_COMPONENT, "Chassis component"}, 229190203Srpaulo { CFM_CHASSIS_ID_INTERFACE_ALIAS, "Interface alias"}, 230190203Srpaulo { CFM_CHASSIS_ID_PORT_COMPONENT, "Port component"}, 231190203Srpaulo { CFM_CHASSIS_ID_MAC_ADDRESS, "MAC address"}, 232190203Srpaulo { CFM_CHASSIS_ID_NETWORK_ADDRESS, "Network address"}, 233190203Srpaulo { CFM_CHASSIS_ID_INTERFACE_NAME, "Interface name"}, 234190203Srpaulo { CFM_CHASSIS_ID_LOCAL, "Locally assigned"}, 235190203Srpaulo { 0, NULL} 236190203Srpaulo}; 237190203Srpaulo 238190203Srpaulo 239190203Srpauloint 240190203Srpaulocfm_mgmt_addr_print(register const u_char *tptr) { 241190203Srpaulo 242190203Srpaulo u_int mgmt_addr_type; 243190203Srpaulo u_int hexdump = FALSE; 244190203Srpaulo 245190203Srpaulo /* 246190203Srpaulo * Altough AFIs are tpically 2 octects wide, 247190203Srpaulo * 802.1ab specifies that this field width 248190203Srpaulo * is only once octet 249190203Srpaulo */ 250190203Srpaulo mgmt_addr_type = *tptr; 251190203Srpaulo printf("\n\t Management Address Type %s (%u)", 252190203Srpaulo tok2str(af_values, "Unknown", mgmt_addr_type), 253190203Srpaulo mgmt_addr_type); 254190203Srpaulo 255190203Srpaulo /* 256190203Srpaulo * Resolve the passed in Address. 257190203Srpaulo */ 258190203Srpaulo switch(mgmt_addr_type) { 259190203Srpaulo case AFNUM_INET: 260190203Srpaulo printf(", %s", ipaddr_string(tptr + 1)); 261190203Srpaulo break; 262190203Srpaulo 263190203Srpaulo#ifdef INET6 264190203Srpaulo case AFNUM_INET6: 265190203Srpaulo printf(", %s", ip6addr_string(tptr + 1)); 266190203Srpaulo break; 267190203Srpaulo#endif 268190203Srpaulo 269190203Srpaulo default: 270190203Srpaulo hexdump = TRUE; 271190203Srpaulo break; 272190203Srpaulo } 273190203Srpaulo 274190203Srpaulo return hexdump; 275190203Srpaulo} 276190203Srpaulo 277190203Srpaulo/* 278190203Srpaulo * The egress-ID string is a 16-Bit string plus a MAC address. 279190203Srpaulo */ 280190203Srpauloconst char * 281190203Srpaulocfm_egress_id_string(register const u_char *tptr) { 282190203Srpaulo static char egress_id_buffer[80]; 283190203Srpaulo 284190203Srpaulo snprintf(egress_id_buffer, sizeof(egress_id_buffer), 285190203Srpaulo "MAC %0x4x-%s", 286190203Srpaulo EXTRACT_16BITS(tptr), 287190203Srpaulo etheraddr_string(tptr+2)); 288190203Srpaulo 289190203Srpaulo return egress_id_buffer; 290190203Srpaulo} 291190203Srpaulo 292190203Srpaulovoid 293190203Srpaulocfm_print(register const u_char *pptr, register u_int length) { 294190203Srpaulo 295190203Srpaulo const struct cfm_common_header_t *cfm_common_header; 296190203Srpaulo const struct cfm_tlv_header_t *cfm_tlv_header; 297190203Srpaulo const u_int8_t *tptr, *tlv_ptr, *ma_name, *ma_nameformat, *ma_namelength; 298190203Srpaulo u_int hexdump, tlen, cfm_tlv_len, cfm_tlv_type, ccm_interval; 299190203Srpaulo 300190203Srpaulo 301190203Srpaulo union { 302190203Srpaulo const struct cfm_ccm_t *cfm_ccm; 303190203Srpaulo const struct cfm_lbm_t *cfm_lbm; 304190203Srpaulo const struct cfm_ltm_t *cfm_ltm; 305190203Srpaulo const struct cfm_ltr_t *cfm_ltr; 306190203Srpaulo } msg_ptr; 307190203Srpaulo 308190203Srpaulo tptr=pptr; 309190203Srpaulo cfm_common_header = (const struct cfm_common_header_t *)pptr; 310190203Srpaulo TCHECK(*cfm_common_header); 311190203Srpaulo 312190203Srpaulo /* 313190203Srpaulo * Sanity checking of the header. 314190203Srpaulo */ 315190203Srpaulo if (CFM_EXTRACT_VERSION(cfm_common_header->mdlevel_version) != CFM_VERSION) { 316190203Srpaulo printf("CFMv%u not supported, length %u", 317190203Srpaulo CFM_EXTRACT_VERSION(cfm_common_header->mdlevel_version), length); 318190203Srpaulo return; 319190203Srpaulo } 320190203Srpaulo 321190203Srpaulo printf("CFMv%u %s, MD Level %u, length %u", 322190203Srpaulo CFM_EXTRACT_VERSION(cfm_common_header->mdlevel_version), 323190203Srpaulo tok2str(cfm_opcode_values, "unknown (%u)", cfm_common_header->opcode), 324190203Srpaulo CFM_EXTRACT_MD_LEVEL(cfm_common_header->mdlevel_version), 325190203Srpaulo length); 326190203Srpaulo 327190203Srpaulo /* 328190203Srpaulo * In non-verbose mode just print the opcode and md-level. 329190203Srpaulo */ 330190203Srpaulo if (vflag < 1) { 331190203Srpaulo return; 332190203Srpaulo } 333190203Srpaulo 334190203Srpaulo printf("\n\tFirst TLV offset %u", cfm_common_header->first_tlv_offset); 335190203Srpaulo 336190203Srpaulo tptr += sizeof(const struct cfm_common_header_t); 337190203Srpaulo tlen = length - sizeof(struct cfm_common_header_t); 338190203Srpaulo 339190203Srpaulo switch (cfm_common_header->opcode) { 340190203Srpaulo case CFM_OPCODE_CCM: 341190203Srpaulo msg_ptr.cfm_ccm = (const struct cfm_ccm_t *)tptr; 342190203Srpaulo 343190203Srpaulo ccm_interval = CFM_EXTRACT_CCM_INTERVAL(cfm_common_header->flags); 344190203Srpaulo printf(", Flags [CCM Interval %u%s]", 345190203Srpaulo ccm_interval, 346190203Srpaulo cfm_common_header->flags & CFM_CCM_RDI_FLAG ? 347190203Srpaulo ", RDI" : ""); 348190203Srpaulo 349190203Srpaulo /* 350190203Srpaulo * Resolve the CCM interval field. 351190203Srpaulo */ 352190203Srpaulo if (ccm_interval) { 353190203Srpaulo printf("\n\t CCM Interval %.3fs" 354190203Srpaulo ", min CCM Lifetime %.3fs, max CCM Lifetime %.3fs", 355190203Srpaulo ccm_interval_base[ccm_interval], 356190203Srpaulo ccm_interval_base[ccm_interval] * CCM_INTERVAL_MIN_MULTIPLIER, 357190203Srpaulo ccm_interval_base[ccm_interval] * CCM_INTERVAL_MAX_MULTIPLIER); 358190203Srpaulo } 359190203Srpaulo 360190203Srpaulo printf("\n\t Sequence Number 0x%08x, MA-End-Point-ID 0x%04x", 361190203Srpaulo EXTRACT_32BITS(msg_ptr.cfm_ccm->sequence), 362190203Srpaulo EXTRACT_16BITS(msg_ptr.cfm_ccm->ma_epi)); 363190203Srpaulo 364190203Srpaulo 365190203Srpaulo /* 366190203Srpaulo * Resolve the MD fields. 367190203Srpaulo */ 368190203Srpaulo printf("\n\t MD Name Format %s (%u), MD Name length %u", 369190203Srpaulo tok2str(cfm_md_nameformat_values, "Unknown", 370190203Srpaulo msg_ptr.cfm_ccm->md_nameformat), 371190203Srpaulo msg_ptr.cfm_ccm->md_nameformat, 372190203Srpaulo msg_ptr.cfm_ccm->md_namelength); 373190203Srpaulo 374190203Srpaulo if (msg_ptr.cfm_ccm->md_nameformat != CFM_CCM_MD_FORMAT_NONE) { 375190203Srpaulo printf("\n\t MD Name: "); 376190203Srpaulo switch (msg_ptr.cfm_ccm->md_nameformat) { 377190203Srpaulo case CFM_CCM_MD_FORMAT_DNS: 378190203Srpaulo case CFM_CCM_MD_FORMAT_CHAR: 379190203Srpaulo safeputs((const char *)msg_ptr.cfm_ccm->md_name, msg_ptr.cfm_ccm->md_namelength); 380190203Srpaulo break; 381190203Srpaulo 382190203Srpaulo case CFM_CCM_MD_FORMAT_MAC: 383190203Srpaulo printf("\n\t MAC %s", etheraddr_string( 384190203Srpaulo msg_ptr.cfm_ccm->md_name)); 385190203Srpaulo break; 386190203Srpaulo 387190203Srpaulo /* FIXME add printers for those MD formats - hexdump for now */ 388190203Srpaulo case CFM_CCM_MA_FORMAT_8021: 389190203Srpaulo default: 390190203Srpaulo print_unknown_data(msg_ptr.cfm_ccm->md_name, "\n\t ", 391190203Srpaulo msg_ptr.cfm_ccm->md_namelength); 392190203Srpaulo } 393190203Srpaulo } 394190203Srpaulo 395190203Srpaulo 396190203Srpaulo /* 397190203Srpaulo * Resolve the MA fields. 398190203Srpaulo */ 399190203Srpaulo ma_nameformat = msg_ptr.cfm_ccm->md_name + msg_ptr.cfm_ccm->md_namelength; 400190203Srpaulo ma_namelength = msg_ptr.cfm_ccm->md_name + msg_ptr.cfm_ccm->md_namelength + 1; 401190203Srpaulo ma_name = msg_ptr.cfm_ccm->md_name + msg_ptr.cfm_ccm->md_namelength + 2; 402190203Srpaulo 403190203Srpaulo printf("\n\t MA Name-Format %s (%u), MA name length %u", 404190203Srpaulo tok2str(cfm_ma_nameformat_values, "Unknown", 405190203Srpaulo *ma_nameformat), 406190203Srpaulo *ma_nameformat, 407190203Srpaulo *ma_namelength); 408190203Srpaulo 409190203Srpaulo printf("\n\t MA Name: "); 410190203Srpaulo switch (*ma_nameformat) { 411190203Srpaulo case CFM_CCM_MA_FORMAT_CHAR: 412190203Srpaulo safeputs((const char *)ma_name, *ma_namelength); 413190203Srpaulo break; 414190203Srpaulo 415190203Srpaulo /* FIXME add printers for those MA formats - hexdump for now */ 416190203Srpaulo case CFM_CCM_MA_FORMAT_8021: 417190203Srpaulo case CFM_CCM_MA_FORMAT_VID: 418190203Srpaulo case CFM_CCM_MA_FORMAT_INT: 419190203Srpaulo case CFM_CCM_MA_FORMAT_VPN: 420190203Srpaulo default: 421190203Srpaulo print_unknown_data(ma_name, "\n\t ", *ma_namelength); 422190203Srpaulo } 423190203Srpaulo break; 424190203Srpaulo 425190203Srpaulo case CFM_OPCODE_LTM: 426214478Srpaulo msg_ptr.cfm_ltm = (const struct cfm_ltm_t *)tptr; 427214478Srpaulo 428190203Srpaulo printf(", Flags [%s]", 429190203Srpaulo bittok2str(cfm_ltm_flag_values, "none", cfm_common_header->flags)); 430190203Srpaulo 431190203Srpaulo printf("\n\t Transaction-ID 0x%08x, Egress-ID %s, ttl %u", 432190203Srpaulo EXTRACT_32BITS(msg_ptr.cfm_ltm->transaction_id), 433190203Srpaulo cfm_egress_id_string(msg_ptr.cfm_ltm->egress_id), 434190203Srpaulo msg_ptr.cfm_ltm->ttl); 435190203Srpaulo 436190203Srpaulo printf("\n\t Original-MAC %s, Target-MAC %s", 437190203Srpaulo etheraddr_string(msg_ptr.cfm_ltm->original_mac), 438190203Srpaulo etheraddr_string(msg_ptr.cfm_ltm->target_mac)); 439190203Srpaulo break; 440190203Srpaulo 441190203Srpaulo case CFM_OPCODE_LTR: 442214478Srpaulo msg_ptr.cfm_ltr = (const struct cfm_ltr_t *)tptr; 443214478Srpaulo 444190203Srpaulo printf(", Flags [%s]", 445190203Srpaulo bittok2str(cfm_ltr_flag_values, "none", cfm_common_header->flags)); 446190203Srpaulo 447190203Srpaulo printf("\n\t Transaction-ID 0x%08x, Last-Egress-ID %s", 448190203Srpaulo EXTRACT_32BITS(msg_ptr.cfm_ltr->transaction_id), 449190203Srpaulo cfm_egress_id_string(msg_ptr.cfm_ltr->last_egress_id)); 450190203Srpaulo 451190203Srpaulo printf("\n\t Next-Egress-ID %s, ttl %u", 452190203Srpaulo cfm_egress_id_string(msg_ptr.cfm_ltr->next_egress_id), 453190203Srpaulo msg_ptr.cfm_ltr->ttl); 454190203Srpaulo 455190203Srpaulo printf("\n\t Replay-Action %s (%u)", 456190203Srpaulo tok2str(cfm_ltr_replay_action_values, 457190203Srpaulo "Unknown", 458190203Srpaulo msg_ptr.cfm_ltr->replay_action), 459190203Srpaulo msg_ptr.cfm_ltr->replay_action); 460190203Srpaulo break; 461190203Srpaulo 462190203Srpaulo /* 463190203Srpaulo * No message decoder yet. 464190203Srpaulo * Hexdump everything up until the start of the TLVs 465190203Srpaulo */ 466190203Srpaulo case CFM_OPCODE_LBR: 467190203Srpaulo case CFM_OPCODE_LBM: 468190203Srpaulo default: 469190203Srpaulo if (tlen > cfm_common_header->first_tlv_offset) { 470190203Srpaulo print_unknown_data(tptr, "\n\t ", 471190203Srpaulo tlen - cfm_common_header->first_tlv_offset); 472190203Srpaulo } 473190203Srpaulo break; 474190203Srpaulo } 475190203Srpaulo 476190203Srpaulo /* 477190203Srpaulo * Sanity check for not walking off. 478190203Srpaulo */ 479190203Srpaulo if (tlen <= cfm_common_header->first_tlv_offset) { 480190203Srpaulo return; 481190203Srpaulo } 482190203Srpaulo 483190203Srpaulo tptr += cfm_common_header->first_tlv_offset; 484190203Srpaulo tlen -= cfm_common_header->first_tlv_offset; 485190203Srpaulo 486190203Srpaulo while (tlen > 0) { 487190203Srpaulo cfm_tlv_header = (const struct cfm_tlv_header_t *)tptr; 488190203Srpaulo 489190203Srpaulo /* Enough to read the tlv type ? */ 490190203Srpaulo TCHECK2(*tptr, 1); 491190203Srpaulo cfm_tlv_type=cfm_tlv_header->type; 492190203Srpaulo 493190203Srpaulo if (cfm_tlv_type != CFM_TLV_END) { 494190203Srpaulo /* did we capture enough for fully decoding the object header ? */ 495190203Srpaulo TCHECK2(*tptr, sizeof(struct cfm_tlv_header_t)); 496190203Srpaulo cfm_tlv_len=EXTRACT_16BITS(&cfm_tlv_header->length); 497190203Srpaulo } else { 498190203Srpaulo cfm_tlv_len = 0; 499190203Srpaulo } 500190203Srpaulo 501190203Srpaulo printf("\n\t%s TLV (0x%02x), length %u", 502190203Srpaulo tok2str(cfm_tlv_values, "Unknown", cfm_tlv_type), 503190203Srpaulo cfm_tlv_type, 504190203Srpaulo cfm_tlv_len); 505190203Srpaulo 506190203Srpaulo /* sanity check for not walking off and infinite loop check. */ 507190203Srpaulo if ((cfm_tlv_type != CFM_TLV_END) && 508190203Srpaulo ((cfm_tlv_len + sizeof(struct cfm_tlv_header_t) > tlen) || 509190203Srpaulo (!cfm_tlv_len))) { 510190203Srpaulo print_unknown_data(tptr,"\n\t ",tlen); 511190203Srpaulo return; 512190203Srpaulo } 513190203Srpaulo 514190203Srpaulo tptr += sizeof(struct cfm_tlv_header_t); 515190203Srpaulo tlen -= sizeof(struct cfm_tlv_header_t); 516190203Srpaulo tlv_ptr = tptr; 517190203Srpaulo 518190203Srpaulo /* did we capture enough for fully decoding the object ? */ 519190203Srpaulo if (cfm_tlv_type != CFM_TLV_END) { 520190203Srpaulo TCHECK2(*tptr, cfm_tlv_len); 521190203Srpaulo } 522190203Srpaulo hexdump = FALSE; 523190203Srpaulo 524190203Srpaulo switch(cfm_tlv_type) { 525190203Srpaulo case CFM_TLV_END: 526190203Srpaulo /* we are done - bail out */ 527190203Srpaulo return; 528190203Srpaulo 529190203Srpaulo case CFM_TLV_PORT_STATUS: 530190203Srpaulo printf(", Status: %s (%u)", 531190203Srpaulo tok2str(cfm_tlv_port_status_values, "Unknown", *tptr), 532190203Srpaulo *tptr); 533190203Srpaulo break; 534190203Srpaulo 535190203Srpaulo case CFM_TLV_INTERFACE_STATUS: 536190203Srpaulo printf(", Status: %s (%u)", 537190203Srpaulo tok2str(cfm_tlv_interface_status_values, "Unknown", *tptr), 538190203Srpaulo *tptr); 539190203Srpaulo break; 540190203Srpaulo 541190203Srpaulo case CFM_TLV_PRIVATE: 542190203Srpaulo printf(", Vendor: %s (%u), Sub-Type %u", 543190203Srpaulo tok2str(oui_values,"Unknown", EXTRACT_24BITS(tptr)), 544190203Srpaulo EXTRACT_24BITS(tptr), 545190203Srpaulo *(tptr+3)); 546190203Srpaulo hexdump = TRUE; 547190203Srpaulo break; 548190203Srpaulo 549190203Srpaulo case CFM_TLV_SENDER_ID: 550190203Srpaulo { 551190203Srpaulo u_int chassis_id_type, chassis_id_length; 552190203Srpaulo u_int mgmt_addr_length; 553190203Srpaulo 554190203Srpaulo /* 555190203Srpaulo * Check if there is a Chassis-ID. 556190203Srpaulo */ 557190203Srpaulo chassis_id_length = *tptr; 558190203Srpaulo if (chassis_id_length > tlen) { 559190203Srpaulo hexdump = TRUE; 560190203Srpaulo break; 561190203Srpaulo } 562190203Srpaulo 563190203Srpaulo tptr++; 564190203Srpaulo tlen--; 565190203Srpaulo 566190203Srpaulo if (chassis_id_length) { 567190203Srpaulo chassis_id_type = *tptr; 568190203Srpaulo printf("\n\t Chassis-ID Type %s (%u), Chassis-ID length %u", 569190203Srpaulo tok2str(cfm_tlv_senderid_chassisid_values, 570190203Srpaulo "Unknown", 571190203Srpaulo chassis_id_type), 572190203Srpaulo chassis_id_type, 573190203Srpaulo chassis_id_length); 574190203Srpaulo 575190203Srpaulo switch (chassis_id_type) { 576190203Srpaulo case CFM_CHASSIS_ID_MAC_ADDRESS: 577190203Srpaulo printf("\n\t MAC %s", etheraddr_string(tptr+1)); 578190203Srpaulo break; 579190203Srpaulo 580190203Srpaulo case CFM_CHASSIS_ID_NETWORK_ADDRESS: 581190203Srpaulo hexdump |= cfm_mgmt_addr_print(tptr); 582190203Srpaulo break; 583190203Srpaulo 584190203Srpaulo case CFM_CHASSIS_ID_INTERFACE_NAME: /* fall through */ 585190203Srpaulo case CFM_CHASSIS_ID_INTERFACE_ALIAS: 586190203Srpaulo case CFM_CHASSIS_ID_LOCAL: 587190203Srpaulo case CFM_CHASSIS_ID_CHASSIS_COMPONENT: 588190203Srpaulo case CFM_CHASSIS_ID_PORT_COMPONENT: 589190203Srpaulo safeputs((const char *)tptr+1, chassis_id_length); 590190203Srpaulo break; 591190203Srpaulo 592190203Srpaulo default: 593190203Srpaulo hexdump = TRUE; 594190203Srpaulo break; 595190203Srpaulo } 596190203Srpaulo } 597190203Srpaulo 598190203Srpaulo tptr += chassis_id_length; 599190203Srpaulo tlen -= chassis_id_length; 600190203Srpaulo 601190203Srpaulo /* 602190203Srpaulo * Check if there is a Management Address. 603190203Srpaulo */ 604190203Srpaulo mgmt_addr_length = *tptr; 605190203Srpaulo if (mgmt_addr_length > tlen) { 606190203Srpaulo hexdump = TRUE; 607190203Srpaulo break; 608190203Srpaulo } 609190203Srpaulo 610190203Srpaulo tptr++; 611190203Srpaulo tlen--; 612190203Srpaulo 613190203Srpaulo if (mgmt_addr_length) { 614190203Srpaulo hexdump |= cfm_mgmt_addr_print(tptr); 615190203Srpaulo } 616190203Srpaulo 617190203Srpaulo tptr += mgmt_addr_length; 618190203Srpaulo tlen -= mgmt_addr_length; 619190203Srpaulo 620190203Srpaulo } 621190203Srpaulo break; 622190203Srpaulo 623190203Srpaulo /* 624190203Srpaulo * FIXME those are the defined TLVs that lack a decoder 625190203Srpaulo * you are welcome to contribute code ;-) 626190203Srpaulo */ 627190203Srpaulo 628190203Srpaulo case CFM_TLV_DATA: 629190203Srpaulo case CFM_TLV_REPLY_INGRESS: 630190203Srpaulo case CFM_TLV_REPLY_EGRESS: 631190203Srpaulo default: 632190203Srpaulo hexdump = TRUE; 633190203Srpaulo break; 634190203Srpaulo } 635190203Srpaulo /* do we want to see an additional hexdump ? */ 636190203Srpaulo if (hexdump || vflag > 1) 637190203Srpaulo print_unknown_data(tlv_ptr, "\n\t ", cfm_tlv_len); 638190203Srpaulo 639190203Srpaulo tptr+=cfm_tlv_len; 640190203Srpaulo tlen-=cfm_tlv_len; 641190203Srpaulo } 642190203Srpaulo return; 643190203Srpaulotrunc: 644190203Srpaulo printf("\n\t\t packet exceeded snapshot"); 645190203Srpaulo} 646