print-ospf.c revision 172683
117680Spst/* 239297Sfenner * Copyright (c) 1992, 1993, 1994, 1995, 1996, 1997 317680Spst * The Regents of the University of California. All rights reserved. 417680Spst * 517680Spst * Redistribution and use in source and binary forms, with or without 617680Spst * modification, are permitted provided that: (1) source code distributions 717680Spst * retain the above copyright notice and this paragraph in its entirety, (2) 817680Spst * distributions including binary code include the above copyright notice and 917680Spst * this paragraph in its entirety in the documentation or other materials 1017680Spst * provided with the distribution, and (3) all advertising materials mentioning 1117680Spst * features or use of this software display the following acknowledgement: 1217680Spst * ``This product includes software developed by the University of California, 1317680Spst * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of 1417680Spst * the University nor the names of its contributors may be used to endorse 1517680Spst * or promote products derived from this software without specific prior 1617680Spst * written permission. 1717680Spst * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED 1817680Spst * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF 1917680Spst * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 2017680Spst * 2117680Spst * OSPF support contributed by Jeffrey Honig (jch@mitchell.cit.cornell.edu) 2217680Spst */ 2317680Spst 2417680Spst#ifndef lint 25127668Sbmsstatic const char rcsid[] _U_ = 26172683Smlaier "@(#) $Header: /tcpdump/master/tcpdump/print-ospf.c,v 1.56.2.4 2006/12/13 08:24:27 hannes Exp $ (LBL)"; 2717680Spst#endif 2817680Spst 2956893Sfenner#ifdef HAVE_CONFIG_H 3056893Sfenner#include "config.h" 3156893Sfenner#endif 3256893Sfenner 33127668Sbms#include <tcpdump-stdinc.h> 3417680Spst 3517680Spst#include <stdio.h> 3617680Spst 3717680Spst#include "interface.h" 3817680Spst#include "addrtoname.h" 39127668Sbms#include "extract.h" 40127668Sbms#include "gmpls.h" 4117680Spst 4217680Spst#include "ospf.h" 4317680Spst 4475115Sfenner#include "ip.h" 4575115Sfenner 46127668Sbmsstatic struct tok ospf_option_values[] = { 47127668Sbms { OSPF_OPTION_T, "TOS" }, 48127668Sbms { OSPF_OPTION_E, "External" }, 49127668Sbms { OSPF_OPTION_MC, "Multicast" }, 50127668Sbms { OSPF_OPTION_NP, "NSSA" }, 51127668Sbms { OSPF_OPTION_EA, "Advertise External" }, 52127668Sbms { OSPF_OPTION_DC, "Demand Circuit" }, 53127668Sbms { OSPF_OPTION_O, "Opaque" }, 54146773Ssam { OSPF_OPTION_DN, "Up/Down" }, 55127668Sbms { 0, NULL } 5617680Spst}; 5717680Spst 58127668Sbmsstatic struct tok ospf_authtype_values[] = { 59127668Sbms { OSPF_AUTH_NONE, "none" }, 60172683Smlaier { OSPF_AUTH_SIMPLE, "simple" }, 61127668Sbms { OSPF_AUTH_MD5, "MD5" }, 6217680Spst { 0, NULL } 6317680Spst}; 6417680Spst 65127668Sbmsstatic struct tok ospf_rla_flag_values[] = { 66127668Sbms { RLA_FLAG_B, "ABR" }, 67127668Sbms { RLA_FLAG_E, "ASBR" }, 68127668Sbms { RLA_FLAG_W1, "Virtual" }, 6917680Spst { RLA_FLAG_W2, "W2" }, 7017680Spst { 0, NULL } 7117680Spst}; 7217680Spst 7326180Sfennerstatic struct tok type2str[] = { 74127668Sbms { OSPF_TYPE_UMD, "UMD" }, 75127668Sbms { OSPF_TYPE_HELLO, "Hello" }, 76127668Sbms { OSPF_TYPE_DD, "Database Description" }, 77127668Sbms { OSPF_TYPE_LS_REQ, "LS-Request" }, 78127668Sbms { OSPF_TYPE_LS_UPDATE, "LS-Update" }, 79127668Sbms { OSPF_TYPE_LS_ACK, "LS-Ack" }, 8026180Sfenner { 0, NULL } 8117680Spst}; 8217680Spst 83127668Sbmsstatic struct tok lsa_values[] = { 84127668Sbms { LS_TYPE_ROUTER, "Router" }, 85127668Sbms { LS_TYPE_NETWORK, "Network" }, 86127668Sbms { LS_TYPE_SUM_IP, "Summary" }, 87127668Sbms { LS_TYPE_SUM_ABR, "ASBR Summary" }, 88127668Sbms { LS_TYPE_ASE, "External" }, 89127668Sbms { LS_TYPE_GROUP, "Multicast Group" }, 90127668Sbms { LS_TYPE_NSSA, "NSSA" }, 91127668Sbms { LS_TYPE_OPAQUE_LL, "Link Local Opaque" }, 92127668Sbms { LS_TYPE_OPAQUE_AL, "Area Local Opaque" }, 93127668Sbms { LS_TYPE_OPAQUE_DW, "Domain Wide Opaque" }, 94127668Sbms { 0, NULL } 95127668Sbms}; 9626180Sfenner 97127668Sbmsstatic struct tok ospf_dd_flag_values[] = { 98127668Sbms { OSPF_DB_INIT, "Init" }, 99127668Sbms { OSPF_DB_MORE, "More" }, 100127668Sbms { OSPF_DB_MASTER, "Master" }, 101127668Sbms { 0, NULL } 102127668Sbms}; 10326180Sfenner 104127668Sbmsstatic struct tok lsa_opaque_values[] = { 105127668Sbms { LS_OPAQUE_TYPE_TE, "Traffic Engineering" }, 106127668Sbms { LS_OPAQUE_TYPE_GRACE, "Graceful restart" }, 107146773Ssam { LS_OPAQUE_TYPE_RI, "Router Information" }, 108127668Sbms { 0, NULL } 109127668Sbms}; 11017680Spst 111127668Sbmsstatic struct tok lsa_opaque_te_tlv_values[] = { 112127668Sbms { LS_OPAQUE_TE_TLV_ROUTER, "Router Address" }, 113127668Sbms { LS_OPAQUE_TE_TLV_LINK, "Link" }, 114127668Sbms { 0, NULL } 115127668Sbms}; 11617680Spst 117127668Sbmsstatic struct tok lsa_opaque_te_link_tlv_subtlv_values[] = { 118127668Sbms { LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE, "Link Type" }, 119127668Sbms { LS_OPAQUE_TE_LINK_SUBTLV_LINK_ID, "Link ID" }, 120127668Sbms { LS_OPAQUE_TE_LINK_SUBTLV_LOCAL_IP, "Local Interface IP address" }, 121127668Sbms { LS_OPAQUE_TE_LINK_SUBTLV_REMOTE_IP, "Remote Interface IP address" }, 122127668Sbms { LS_OPAQUE_TE_LINK_SUBTLV_TE_METRIC, "Traffic Engineering Metric" }, 123127668Sbms { LS_OPAQUE_TE_LINK_SUBTLV_MAX_BW, "Maximum Bandwidth" }, 124127668Sbms { LS_OPAQUE_TE_LINK_SUBTLV_MAX_RES_BW, "Maximum Reservable Bandwidth" }, 125127668Sbms { LS_OPAQUE_TE_LINK_SUBTLV_UNRES_BW, "Unreserved Bandwidth" }, 126127668Sbms { LS_OPAQUE_TE_LINK_SUBTLV_ADMIN_GROUP, "Administrative Group" }, 127127668Sbms { LS_OPAQUE_TE_LINK_SUBTLV_LINK_LOCAL_REMOTE_ID, "Link Local/Remote Identifier" }, 128127668Sbms { LS_OPAQUE_TE_LINK_SUBTLV_LINK_PROTECTION_TYPE, "Link Protection Type" }, 129127668Sbms { LS_OPAQUE_TE_LINK_SUBTLV_INTF_SW_CAP_DESCR, "Interface Switching Capability" }, 130127668Sbms { LS_OPAQUE_TE_LINK_SUBTLV_SHARED_RISK_GROUP, "Shared Risk Link Group" }, 131162017Ssam { LS_OPAQUE_TE_LINK_SUBTLV_BW_CONSTRAINTS, "Bandwidth Constraints" }, 132127668Sbms { 0, NULL } 133127668Sbms}; 13417680Spst 135146773Ssamstatic struct tok lsa_opaque_grace_tlv_values[] = { 136146773Ssam { LS_OPAQUE_GRACE_TLV_PERIOD, "Grace Period" }, 137146773Ssam { LS_OPAQUE_GRACE_TLV_REASON, "Graceful restart Reason" }, 138146773Ssam { LS_OPAQUE_GRACE_TLV_INT_ADDRESS, "IPv4 interface address" }, 139146773Ssam { 0, NULL } 140146773Ssam}; 14117680Spst 142146773Ssamstatic struct tok lsa_opaque_grace_tlv_reason_values[] = { 143146773Ssam { LS_OPAQUE_GRACE_TLV_REASON_UNKNOWN, "Unknown" }, 144146773Ssam { LS_OPAQUE_GRACE_TLV_REASON_SW_RESTART, "Software Restart" }, 145146773Ssam { LS_OPAQUE_GRACE_TLV_REASON_SW_UPGRADE, "Software Reload/Upgrade" }, 146146773Ssam { LS_OPAQUE_GRACE_TLV_REASON_CP_SWITCH, "Control Processor Switch" }, 147146773Ssam { 0, NULL } 148146773Ssam}; 149146773Ssam 150127668Sbmsstatic struct tok lsa_opaque_te_tlv_link_type_sub_tlv_values[] = { 151127668Sbms { LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE_PTP, "Point-to-point" }, 152127668Sbms { LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE_MA, "Multi-Access" }, 153127668Sbms { 0, NULL } 154127668Sbms}; 15517680Spst 156146773Ssamstatic struct tok lsa_opaque_ri_tlv_values[] = { 157146773Ssam { LS_OPAQUE_RI_TLV_CAP, "Router Capabilities" }, 158146773Ssam { 0, NULL } 159146773Ssam}; 160146773Ssam 161146773Ssamstatic struct tok lsa_opaque_ri_tlv_cap_values[] = { 162146773Ssam { 1, "Reserved" }, 163146773Ssam { 2, "Reserved" }, 164146773Ssam { 4, "Reserved" }, 165146773Ssam { 8, "Reserved" }, 166146773Ssam { 16, "graceful restart capable" }, 167146773Ssam { 32, "graceful restart helper" }, 168146773Ssam { 64, "Stub router support" }, 169146773Ssam { 128, "Traffic engineering" }, 170146773Ssam { 256, "p2p over LAN" }, 171146773Ssam { 512, "path computation server" }, 172146773Ssam { 0, NULL } 173146773Ssam}; 174146773Ssam 175127668Sbmsstatic char tstr[] = " [|ospf]"; 17617680Spst 177127668Sbms#ifdef WIN32 178127668Sbms#define inline __inline 179127668Sbms#endif /* WIN32 */ 18017680Spst 181127668Sbmsstatic int ospf_print_lshdr(const struct lsa_hdr *); 182127668Sbmsstatic const u_char *ospf_print_lsa(const struct lsa *); 183127668Sbmsstatic int ospf_decode_v2(const struct ospfhdr *, const u_char *); 18417680Spst 185127668Sbmsstatic int 186127668Sbmsospf_print_lshdr(register const struct lsa_hdr *lshp) 187127668Sbms{ 188127668Sbms u_int ls_length; 18917680Spst 190127668Sbms TCHECK(lshp->ls_length); 191127668Sbms ls_length = EXTRACT_16BITS(&lshp->ls_length); 192127668Sbms if (ls_length < sizeof(struct lsa_hdr)) { 193127668Sbms printf("\n\t Bogus length %u < %lu", ls_length, 194127668Sbms (unsigned long)sizeof(struct lsa_hdr)); 195127668Sbms return(-1); 196127668Sbms } 19717680Spst 198127668Sbms TCHECK(lshp->ls_seq); /* XXX - ls_length check checked this */ 199127668Sbms printf("\n\t Advertising Router: %s, seq 0x%08x, age %us, length: %u", 200127668Sbms ipaddr_string(&lshp->ls_router), 201127668Sbms EXTRACT_32BITS(&lshp->ls_seq), 202127668Sbms EXTRACT_16BITS(&lshp->ls_age), 203127668Sbms ls_length-(u_int)sizeof(struct lsa_hdr)); 20417680Spst 205127668Sbms TCHECK(lshp->ls_type); /* XXX - ls_length check checked this */ 206127668Sbms switch (lshp->ls_type) { 207127668Sbms /* the LSA header for opaque LSAs was slightly changed */ 208127668Sbms case LS_TYPE_OPAQUE_LL: 209127668Sbms case LS_TYPE_OPAQUE_AL: 210127668Sbms case LS_TYPE_OPAQUE_DW: 211127668Sbms printf("\n\t %s LSA (%d), Opaque-Type: %s LSA (%u), Opaque-ID: %u", 212127668Sbms tok2str(lsa_values,"unknown",lshp->ls_type), 213127668Sbms lshp->ls_type, 21417680Spst 215127668Sbms tok2str(lsa_opaque_values, 216127668Sbms "unknown", 217127668Sbms *(&lshp->un_lsa_id.opaque_field.opaque_type)), 218127668Sbms *(&lshp->un_lsa_id.opaque_field.opaque_type), 219127668Sbms EXTRACT_24BITS(&lshp->un_lsa_id.opaque_field.opaque_id) 220127668Sbms 221127668Sbms ); 222127668Sbms break; 22326180Sfenner 224127668Sbms /* all other LSA types use regular style LSA headers */ 22526180Sfenner default: 226127668Sbms printf("\n\t %s LSA (%d), LSA-ID: %s", 227127668Sbms tok2str(lsa_values,"unknown",lshp->ls_type), 228127668Sbms lshp->ls_type, 229127668Sbms ipaddr_string(&lshp->un_lsa_id.lsa_id)); 230127668Sbms break; 231127668Sbms } 23217680Spst 233127668Sbms TCHECK(lshp->ls_options); /* XXX - ls_length check checked this */ 234127668Sbms printf("\n\t Options: [%s]", bittok2str(ospf_option_values,"none",lshp->ls_options)); 23517680Spst 236127668Sbms return (ls_length); 23726180Sfennertrunc: 238127668Sbms return (-1); 23926180Sfenner} 24026180Sfenner 24117680Spst/* 242127668Sbms * Print a single link state advertisement. If truncated or if LSA length 243127668Sbms * field is less than the length of the LSA header, return NULl, else 244127668Sbms * return pointer to data past end of LSA. 24517680Spst */ 246127668Sbmsstatic const u_int8_t * 24726180Sfennerospf_print_lsa(register const struct lsa *lsap) 24817680Spst{ 249127668Sbms register const u_int8_t *ls_end; 25026180Sfenner register const struct rlalink *rlp; 25126180Sfenner register const struct tos_metric *tosp; 25226180Sfenner register const struct in_addr *ap; 25326180Sfenner register const struct aslametric *almp; 25426180Sfenner register const struct mcla *mcp; 25526180Sfenner register const u_int32_t *lp; 256162017Ssam register int j, k, tlv_type, tlv_length, subtlv_type, subtlv_length, priority_level, te_class; 257127668Sbms register int ls_length; 258127668Sbms const u_int8_t *tptr; 259127668Sbms int count_srlg; 260127668Sbms union { /* int to float conversion buffer for several subTLVs */ 261127668Sbms float f; 262127668Sbms u_int32_t i; 263127668Sbms } bw; 26417680Spst 265127668Sbms tptr = (u_int8_t *)lsap->lsa_un.un_unknown; /* squelch compiler warnings */ 266127668Sbms ls_length = ospf_print_lshdr(&lsap->ls_hdr); 267127668Sbms if (ls_length == -1) 268127668Sbms return(NULL); 269127668Sbms ls_end = (u_int8_t *)lsap + ls_length; 270127668Sbms ls_length -= sizeof(struct lsa_hdr); 271127668Sbms 27226180Sfenner switch (lsap->ls_hdr.ls_type) { 27317680Spst 27426180Sfenner case LS_TYPE_ROUTER: 27526180Sfenner TCHECK(lsap->lsa_un.un_rla.rla_flags); 276127668Sbms printf("\n\t Router LSA Options: [%s]", bittok2str(ospf_rla_flag_values,"none",lsap->lsa_un.un_rla.rla_flags)); 27717680Spst 27826180Sfenner TCHECK(lsap->lsa_un.un_rla.rla_count); 279127668Sbms j = EXTRACT_16BITS(&lsap->lsa_un.un_rla.rla_count); 28026180Sfenner TCHECK(lsap->lsa_un.un_rla.rla_link); 28126180Sfenner rlp = lsap->lsa_un.un_rla.rla_link; 28226180Sfenner while (j--) { 28339297Sfenner TCHECK(*rlp); 28426180Sfenner switch (rlp->link_type) { 28517680Spst 28626180Sfenner case RLA_TYPE_VIRTUAL: 287127668Sbms printf("\n\t Virtual Link: Neighbor Router-ID: %s, Interface Address: %s", 288127668Sbms ipaddr_string(&rlp->link_id), 289127668Sbms ipaddr_string(&rlp->link_data)); 290127668Sbms break; 29117680Spst 29226180Sfenner case RLA_TYPE_ROUTER: 293127668Sbms printf("\n\t Neighbor Router-ID: %s, Interface Address: %s", 29426180Sfenner ipaddr_string(&rlp->link_id), 29526180Sfenner ipaddr_string(&rlp->link_data)); 29626180Sfenner break; 29717680Spst 29826180Sfenner case RLA_TYPE_TRANSIT: 299127668Sbms printf("\n\t Neighbor Network-ID: %s, Interface Address: %s", 30026180Sfenner ipaddr_string(&rlp->link_id), 30126180Sfenner ipaddr_string(&rlp->link_data)); 30226180Sfenner break; 30317680Spst 30426180Sfenner case RLA_TYPE_STUB: 305127668Sbms printf("\n\t Stub Network: %s, Mask: %s", 30626180Sfenner ipaddr_string(&rlp->link_id), 30726180Sfenner ipaddr_string(&rlp->link_data)); 30826180Sfenner break; 30917680Spst 31026180Sfenner default: 311127668Sbms printf("\n\t Unknown Router Link Type (%u)", 31226180Sfenner rlp->link_type); 313127668Sbms return (ls_end); 31426180Sfenner } 315127668Sbms printf(", tos 0, metric: %d", EXTRACT_16BITS(&rlp->link_tos0metric)); 31626180Sfenner tosp = (struct tos_metric *) 31726180Sfenner ((sizeof rlp->link_tos0metric) + (u_char *) rlp); 31826180Sfenner for (k = 0; k < (int) rlp->link_toscount; ++k, ++tosp) { 31926180Sfenner TCHECK(*tosp); 320127668Sbms printf(", tos %d, metric: %d", 32126180Sfenner tosp->tos_type, 322127668Sbms EXTRACT_16BITS(&tosp->tos_metric)); 32326180Sfenner } 32439297Sfenner rlp = (struct rlalink *)((u_char *)(rlp + 1) + 32539297Sfenner ((rlp->link_toscount) * sizeof(*tosp))); 32626180Sfenner } 32717680Spst break; 32817680Spst 32926180Sfenner case LS_TYPE_NETWORK: 33026180Sfenner TCHECK(lsap->lsa_un.un_nla.nla_mask); 331127668Sbms printf("\n\t Mask %s\n\t Connected Routers:", 33226180Sfenner ipaddr_string(&lsap->lsa_un.un_nla.nla_mask)); 33326180Sfenner ap = lsap->lsa_un.un_nla.nla_router; 33426180Sfenner while ((u_char *)ap < ls_end) { 33526180Sfenner TCHECK(*ap); 336127668Sbms printf("\n\t %s", ipaddr_string(ap)); 33726180Sfenner ++ap; 33826180Sfenner } 33917680Spst break; 34017680Spst 34126180Sfenner case LS_TYPE_SUM_IP: 34226180Sfenner TCHECK(lsap->lsa_un.un_nla.nla_mask); 343127668Sbms printf("\n\t Mask %s", 34426180Sfenner ipaddr_string(&lsap->lsa_un.un_sla.sla_mask)); 345127668Sbms TCHECK(lsap->lsa_un.un_sla.sla_tosmetric); 346127668Sbms lp = lsap->lsa_un.un_sla.sla_tosmetric; 347127668Sbms /* suppress tos if its not supported */ 348127668Sbms if(!((lsap->ls_hdr.ls_options)&OSPF_OPTION_T)) { 349127668Sbms printf(", metric: %u", EXTRACT_32BITS(lp)&SLA_MASK_METRIC); 350127668Sbms break; 351127668Sbms } 352127668Sbms while ((u_char *)lp < ls_end) { 353127668Sbms register u_int32_t ul; 35417680Spst 355127668Sbms TCHECK(*lp); 356127668Sbms ul = EXTRACT_32BITS(lp); 357127668Sbms printf(", tos %d metric %d", 358127668Sbms (ul & SLA_MASK_TOS) >> SLA_SHIFT_TOS, 359127668Sbms ul & SLA_MASK_METRIC); 360127668Sbms ++lp; 361127668Sbms } 362127668Sbms break; 363127668Sbms 36426180Sfenner case LS_TYPE_SUM_ABR: 36526180Sfenner TCHECK(lsap->lsa_un.un_sla.sla_tosmetric); 36626180Sfenner lp = lsap->lsa_un.un_sla.sla_tosmetric; 367127668Sbms /* suppress tos if its not supported */ 368127668Sbms if(!((lsap->ls_hdr.ls_options)&OSPF_OPTION_T)) { 369127668Sbms printf(", metric: %u", EXTRACT_32BITS(lp)&SLA_MASK_METRIC); 370127668Sbms break; 371127668Sbms } 37226180Sfenner while ((u_char *)lp < ls_end) { 37326180Sfenner register u_int32_t ul; 37417680Spst 37526180Sfenner TCHECK(*lp); 376127668Sbms ul = EXTRACT_32BITS(lp); 377127668Sbms printf(", tos %d metric %d", 37826180Sfenner (ul & SLA_MASK_TOS) >> SLA_SHIFT_TOS, 37926180Sfenner ul & SLA_MASK_METRIC); 38026180Sfenner ++lp; 38126180Sfenner } 38226180Sfenner break; 38317680Spst 38426180Sfenner case LS_TYPE_ASE: 385146773Ssam case LS_TYPE_NSSA: /* fall through - those LSAs share the same format */ 38626180Sfenner TCHECK(lsap->lsa_un.un_nla.nla_mask); 387127668Sbms printf("\n\t Mask %s", 38826180Sfenner ipaddr_string(&lsap->lsa_un.un_asla.asla_mask)); 38917680Spst 39026180Sfenner TCHECK(lsap->lsa_un.un_sla.sla_tosmetric); 39126180Sfenner almp = lsap->lsa_un.un_asla.asla_metric; 39226180Sfenner while ((u_char *)almp < ls_end) { 39326180Sfenner register u_int32_t ul; 39417680Spst 39526180Sfenner TCHECK(almp->asla_tosmetric); 396127668Sbms ul = EXTRACT_32BITS(&almp->asla_tosmetric); 397127668Sbms printf(", type %d, tos %d metric:", 39826180Sfenner (ul & ASLA_FLAG_EXTERNAL) ? 2 : 1, 399127668Sbms (ul & ASLA_MASK_TOS) >> ASLA_SHIFT_TOS); 400127668Sbms if ((ul & ASLA_MASK_METRIC)==0xffffff) 401127668Sbms printf(" infinite"); 402127668Sbms else 403127668Sbms printf(" %d", (ul & ASLA_MASK_METRIC)); 404127668Sbms 40526180Sfenner TCHECK(almp->asla_forward); 40626180Sfenner if (almp->asla_forward.s_addr) { 407127668Sbms printf(", forward %s", 40826180Sfenner ipaddr_string(&almp->asla_forward)); 40926180Sfenner } 41026180Sfenner TCHECK(almp->asla_tag); 41126180Sfenner if (almp->asla_tag.s_addr) { 412127668Sbms printf(", tag %s", 41326180Sfenner ipaddr_string(&almp->asla_tag)); 41426180Sfenner } 41526180Sfenner ++almp; 41626180Sfenner } 41726180Sfenner break; 41817680Spst 41926180Sfenner case LS_TYPE_GROUP: 42026180Sfenner /* Multicast extensions as of 23 July 1991 */ 42126180Sfenner mcp = lsap->lsa_un.un_mcla; 42226180Sfenner while ((u_char *)mcp < ls_end) { 42326180Sfenner TCHECK(mcp->mcla_vid); 424127668Sbms switch (EXTRACT_32BITS(&mcp->mcla_vtype)) { 42517680Spst 42626180Sfenner case MCLA_VERTEX_ROUTER: 427127668Sbms printf("\n\t Router Router-ID %s", 42826180Sfenner ipaddr_string(&mcp->mcla_vid)); 42926180Sfenner break; 43017680Spst 43126180Sfenner case MCLA_VERTEX_NETWORK: 432127668Sbms printf("\n\t Network Designated Router %s", 43326180Sfenner ipaddr_string(&mcp->mcla_vid)); 43426180Sfenner break; 43517680Spst 43626180Sfenner default: 437127668Sbms printf("\n\t unknown VertexType (%u)", 438127668Sbms EXTRACT_32BITS(&mcp->mcla_vtype)); 43926180Sfenner break; 44026180Sfenner } 44126180Sfenner ++mcp; 44226180Sfenner } 443127668Sbms break; 44417680Spst 445127668Sbms case LS_TYPE_OPAQUE_LL: /* fall through */ 446127668Sbms case LS_TYPE_OPAQUE_AL: 447127668Sbms case LS_TYPE_OPAQUE_DW: 448127668Sbms 449127668Sbms switch (*(&lsap->ls_hdr.un_lsa_id.opaque_field.opaque_type)) { 450146773Ssam case LS_OPAQUE_TYPE_RI: 451146773Ssam tptr = (u_int8_t *)(&lsap->lsa_un.un_ri_tlv.type); 452146773Ssam 453146773Ssam while (ls_length != 0) { 454146773Ssam TCHECK2(*tptr, 4); 455146773Ssam if (ls_length < 4) { 456146773Ssam printf("\n\t Remaining LS length %u < 4", ls_length); 457146773Ssam return(ls_end); 458146773Ssam } 459146773Ssam tlv_type = EXTRACT_16BITS(tptr); 460146773Ssam tlv_length = EXTRACT_16BITS(tptr+2); 461146773Ssam tptr+=4; 462146773Ssam ls_length-=4; 463146773Ssam 464146773Ssam printf("\n\t %s TLV (%u), length: %u, value: ", 465146773Ssam tok2str(lsa_opaque_ri_tlv_values,"unknown",tlv_type), 466146773Ssam tlv_type, 467146773Ssam tlv_length); 468146773Ssam 469146773Ssam if (tlv_length > ls_length) { 470146773Ssam printf("\n\t Bogus length %u > %u", tlv_length, 471146773Ssam ls_length); 472146773Ssam return(ls_end); 473146773Ssam } 474146773Ssam ls_length-=tlv_length; 475146773Ssam TCHECK2(*tptr, tlv_length); 476146773Ssam switch(tlv_type) { 477146773Ssam 478146773Ssam case LS_OPAQUE_RI_TLV_CAP: 479146773Ssam if (tlv_length != 4) { 480146773Ssam printf("\n\t Bogus length %u != 4", tlv_length); 481146773Ssam return(ls_end); 482146773Ssam } 483146773Ssam printf("Capabilities: %s", 484146773Ssam bittok2str(lsa_opaque_ri_tlv_cap_values, "Unknown", EXTRACT_32BITS(tptr))); 485146773Ssam break; 486146773Ssam default: 487146773Ssam if (vflag <= 1) { 488146773Ssam if(!print_unknown_data(tptr,"\n\t ",tlv_length)) 489146773Ssam return(ls_end); 490146773Ssam } 491146773Ssam break; 492146773Ssam 493146773Ssam } 494146773Ssam tptr+=tlv_length; 495146773Ssam } 496146773Ssam 497146773Ssam break; 498146773Ssam case LS_OPAQUE_TYPE_GRACE: 499146773Ssam tptr = (u_int8_t *)(&lsap->lsa_un.un_grace_tlv.type); 500146773Ssam 501146773Ssam while (ls_length != 0) { 502146773Ssam TCHECK2(*tptr, 4); 503146773Ssam if (ls_length < 4) { 504146773Ssam printf("\n\t Remaining LS length %u < 4", ls_length); 505146773Ssam return(ls_end); 506146773Ssam } 507146773Ssam tlv_type = EXTRACT_16BITS(tptr); 508146773Ssam tlv_length = EXTRACT_16BITS(tptr+2); 509146773Ssam tptr+=4; 510146773Ssam ls_length-=4; 511146773Ssam 512146773Ssam printf("\n\t %s TLV (%u), length: %u, value: ", 513146773Ssam tok2str(lsa_opaque_grace_tlv_values,"unknown",tlv_type), 514146773Ssam tlv_type, 515146773Ssam tlv_length); 516146773Ssam 517146773Ssam if (tlv_length > ls_length) { 518146773Ssam printf("\n\t Bogus length %u > %u", tlv_length, 519146773Ssam ls_length); 520146773Ssam return(ls_end); 521146773Ssam } 522146773Ssam ls_length-=tlv_length; 523146773Ssam TCHECK2(*tptr, tlv_length); 524146773Ssam switch(tlv_type) { 525146773Ssam 526146773Ssam case LS_OPAQUE_GRACE_TLV_PERIOD: 527146773Ssam if (tlv_length != 4) { 528146773Ssam printf("\n\t Bogus length %u != 4", tlv_length); 529146773Ssam return(ls_end); 530146773Ssam } 531146773Ssam printf("%us",EXTRACT_32BITS(tptr)); 532146773Ssam break; 533146773Ssam case LS_OPAQUE_GRACE_TLV_REASON: 534146773Ssam if (tlv_length != 1) { 535146773Ssam printf("\n\t Bogus length %u != 1", tlv_length); 536146773Ssam return(ls_end); 537146773Ssam } 538146773Ssam printf("%s (%u)", 539146773Ssam tok2str(lsa_opaque_grace_tlv_reason_values, "Unknown", *tptr), 540146773Ssam *tptr); 541146773Ssam break; 542146773Ssam case LS_OPAQUE_GRACE_TLV_INT_ADDRESS: 543146773Ssam if (tlv_length != 4) { 544146773Ssam printf("\n\t Bogus length %u != 4", tlv_length); 545146773Ssam return(ls_end); 546146773Ssam } 547146773Ssam printf("%s", ipaddr_string(tptr)); 548146773Ssam break; 549146773Ssam default: 550146773Ssam if (vflag <= 1) { 551146773Ssam if(!print_unknown_data(tptr,"\n\t ",tlv_length)) 552146773Ssam return(ls_end); 553146773Ssam } 554146773Ssam break; 555146773Ssam 556146773Ssam } 557146773Ssam tptr+=tlv_length; 558146773Ssam } 559146773Ssam 560146773Ssam break; 561127668Sbms case LS_OPAQUE_TYPE_TE: 562127668Sbms tptr = (u_int8_t *)(&lsap->lsa_un.un_te_lsa_tlv.type); 563127668Sbms 564127668Sbms while (ls_length != 0) { 565127668Sbms TCHECK2(*tptr, 4); 566127668Sbms if (ls_length < 4) { 567127668Sbms printf("\n\t Remaining LS length %u < 4", ls_length); 568127668Sbms return(ls_end); 569127668Sbms } 570127668Sbms tlv_type = EXTRACT_16BITS(tptr); 571127668Sbms tlv_length = EXTRACT_16BITS(tptr+2); 572127668Sbms tptr+=4; 573127668Sbms ls_length-=4; 574127668Sbms 575127668Sbms printf("\n\t %s TLV (%u), length: %u", 576127668Sbms tok2str(lsa_opaque_te_tlv_values,"unknown",tlv_type), 577127668Sbms tlv_type, 578127668Sbms tlv_length); 579127668Sbms 580127668Sbms if (tlv_length > ls_length) { 581127668Sbms printf("\n\t Bogus length %u > %u", tlv_length, 582127668Sbms ls_length); 583127668Sbms return(ls_end); 584127668Sbms } 585127668Sbms ls_length-=tlv_length; 586127668Sbms switch(tlv_type) { 587127668Sbms case LS_OPAQUE_TE_TLV_LINK: 588127668Sbms while (tlv_length != 0) { 589127668Sbms if (tlv_length < 4) { 590127668Sbms printf("\n\t Remaining TLV length %u < 4", 591127668Sbms tlv_length); 592127668Sbms return(ls_end); 593127668Sbms } 594127668Sbms TCHECK2(*tptr, 4); 595127668Sbms subtlv_type = EXTRACT_16BITS(tptr); 596127668Sbms subtlv_length = EXTRACT_16BITS(tptr+2); 597127668Sbms tptr+=4; 598127668Sbms tlv_length-=4; 599127668Sbms 600127668Sbms printf("\n\t %s subTLV (%u), length: %u", 601127668Sbms tok2str(lsa_opaque_te_link_tlv_subtlv_values,"unknown",subtlv_type), 602127668Sbms subtlv_type, 603127668Sbms subtlv_length); 604127668Sbms 605127668Sbms TCHECK2(*tptr, subtlv_length); 606127668Sbms switch(subtlv_type) { 607127668Sbms case LS_OPAQUE_TE_LINK_SUBTLV_ADMIN_GROUP: 608127668Sbms printf(", 0x%08x", EXTRACT_32BITS(tptr)); 609127668Sbms break; 610127668Sbms case LS_OPAQUE_TE_LINK_SUBTLV_LINK_ID: 611127668Sbms case LS_OPAQUE_TE_LINK_SUBTLV_LINK_LOCAL_REMOTE_ID: 612127668Sbms printf(", %s (0x%08x)", 613127668Sbms ipaddr_string(tptr), 614127668Sbms EXTRACT_32BITS(tptr)); 615127668Sbms if (subtlv_length == 8) /* draft-ietf-ccamp-ospf-gmpls-extensions */ 616127668Sbms printf(", %s (0x%08x)", 617127668Sbms ipaddr_string(tptr+4), 618127668Sbms EXTRACT_32BITS(tptr+4)); 619127668Sbms break; 620127668Sbms case LS_OPAQUE_TE_LINK_SUBTLV_LOCAL_IP: 621127668Sbms case LS_OPAQUE_TE_LINK_SUBTLV_REMOTE_IP: 622127668Sbms printf(", %s", ipaddr_string(tptr)); 623127668Sbms break; 624127668Sbms case LS_OPAQUE_TE_LINK_SUBTLV_MAX_BW: 625127668Sbms case LS_OPAQUE_TE_LINK_SUBTLV_MAX_RES_BW: 626127668Sbms bw.i = EXTRACT_32BITS(tptr); 627127668Sbms printf(", %.3f Mbps", bw.f*8/1000000 ); 628127668Sbms break; 629127668Sbms case LS_OPAQUE_TE_LINK_SUBTLV_UNRES_BW: 630162017Ssam for (te_class = 0; te_class < 8; te_class++) { 631162017Ssam bw.i = EXTRACT_32BITS(tptr+te_class*4); 632162017Ssam printf("\n\t\tTE-Class %u: %.3f Mbps", 633162017Ssam te_class, 634127668Sbms bw.f*8/1000000 ); 635127668Sbms } 636127668Sbms break; 637162017Ssam case LS_OPAQUE_TE_LINK_SUBTLV_BW_CONSTRAINTS: 638146773Ssam printf("\n\t\tBandwidth Constraints Model ID: %s (%u)", 639146773Ssam tok2str(diffserv_te_bc_values, "unknown", *tptr), 640146773Ssam *tptr); 641146773Ssam /* decode BCs until the subTLV ends */ 642162017Ssam for (te_class = 0; te_class < (subtlv_length-4)/4; te_class++) { 643162017Ssam bw.i = EXTRACT_32BITS(tptr+4+te_class*4); 644162017Ssam printf("\n\t\t Bandwidth constraint CT%u: %.3f Mbps", 645162017Ssam te_class, 646146773Ssam bw.f*8/1000000 ); 647146773Ssam } 648146773Ssam break; 649127668Sbms case LS_OPAQUE_TE_LINK_SUBTLV_TE_METRIC: 650127668Sbms printf(", Metric %u", EXTRACT_32BITS(tptr)); 651127668Sbms break; 652127668Sbms case LS_OPAQUE_TE_LINK_SUBTLV_LINK_PROTECTION_TYPE: 653127668Sbms printf(", %s, Priority %u", 654127668Sbms bittok2str(gmpls_link_prot_values, "none", *tptr), 655127668Sbms *(tptr+1)); 656127668Sbms break; 657127668Sbms case LS_OPAQUE_TE_LINK_SUBTLV_INTF_SW_CAP_DESCR: 658127668Sbms printf("\n\t\tInterface Switching Capability: %s", 659127668Sbms tok2str(gmpls_switch_cap_values, "Unknown", *(tptr))); 660127668Sbms printf("\n\t\tLSP Encoding: %s\n\t\tMax LSP Bandwidth:", 661127668Sbms tok2str(gmpls_encoding_values, "Unknown", *(tptr+1))); 662127668Sbms for (priority_level = 0; priority_level < 8; priority_level++) { 663127668Sbms bw.i = EXTRACT_32BITS(tptr+4+(priority_level*4)); 664127668Sbms printf("\n\t\t priority level %d: %.3f Mbps", 665127668Sbms priority_level, 666127668Sbms bw.f*8/1000000 ); 667127668Sbms } 668127668Sbms break; 669127668Sbms case LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE: 670127668Sbms printf(", %s (%u)", 671127668Sbms tok2str(lsa_opaque_te_tlv_link_type_sub_tlv_values,"unknown",*tptr), 672127668Sbms *tptr); 673127668Sbms break; 674127668Sbms 675127668Sbms case LS_OPAQUE_TE_LINK_SUBTLV_SHARED_RISK_GROUP: 676127668Sbms count_srlg = subtlv_length / 4; 677127668Sbms if (count_srlg != 0) 678127668Sbms printf("\n\t\t Shared risk group: "); 679127668Sbms while (count_srlg > 0) { 680127668Sbms bw.i = EXTRACT_32BITS(tptr); 681127668Sbms printf("%d",bw.i); 682127668Sbms tptr+=4; 683127668Sbms count_srlg--; 684127668Sbms if (count_srlg > 0) 685127668Sbms printf(", "); 686127668Sbms } 687127668Sbms break; 688127668Sbms 689127668Sbms default: 690127668Sbms if (vflag <= 1) { 691127668Sbms if(!print_unknown_data(tptr,"\n\t\t",subtlv_length)) 692127668Sbms return(ls_end); 693127668Sbms } 694127668Sbms break; 695127668Sbms } 696127668Sbms /* in OSPF everything has to be 32-bit aligned, including TLVs */ 697127668Sbms if (subtlv_length%4 != 0) 698127668Sbms subtlv_length+=4-(subtlv_length%4); 699127668Sbms 700127668Sbms tlv_length-=subtlv_length; 701127668Sbms tptr+=subtlv_length; 702127668Sbms 703127668Sbms } 704127668Sbms break; 705127668Sbms 706127668Sbms case LS_OPAQUE_TE_TLV_ROUTER: 707127668Sbms if (tlv_length < 4) { 708127668Sbms printf("\n\t TLV length %u < 4", tlv_length); 709127668Sbms return(ls_end); 710127668Sbms } 711127668Sbms TCHECK2(*tptr, 4); 712127668Sbms printf(", %s", ipaddr_string(tptr)); 713127668Sbms break; 714127668Sbms 715127668Sbms default: 716127668Sbms if (vflag <= 1) { 717127668Sbms if(!print_unknown_data(tptr,"\n\t ",tlv_length)) 718127668Sbms return(ls_end); 719127668Sbms } 720127668Sbms break; 721127668Sbms } 722127668Sbms tptr+=tlv_length; 723127668Sbms } 724127668Sbms break; 725127668Sbms } 726127668Sbms break; 727127668Sbms default: 728127668Sbms if (vflag <= 1) { 729127668Sbms if(!print_unknown_data((u_int8_t *)lsap->lsa_un.un_unknown, 730127668Sbms "\n\t ", ls_length)) 731127668Sbms return(ls_end); 732127668Sbms } 733127668Sbms break; 734127668Sbms } 735127668Sbms 736127668Sbms /* do we want to see an additionally hexdump ? */ 737127668Sbms if (vflag> 1) 738127668Sbms if(!print_unknown_data((u_int8_t *)lsap->lsa_un.un_unknown, 739127668Sbms "\n\t ", ls_length)) { 740127668Sbms return(ls_end); 741127668Sbms } 742127668Sbms 743127668Sbms return (ls_end); 74426180Sfennertrunc: 745127668Sbms return (NULL); 74617680Spst} 74717680Spst 74826180Sfennerstatic int 74926180Sfennerospf_decode_v2(register const struct ospfhdr *op, 75026180Sfenner register const u_char *dataend) 75117680Spst{ 75226180Sfenner register const struct in_addr *ap; 75326180Sfenner register const struct lsr *lsrp; 75426180Sfenner register const struct lsa_hdr *lshp; 75526180Sfenner register const struct lsa *lsap; 756127668Sbms register u_int32_t lsa_count,lsa_count_max; 75717680Spst 75826180Sfenner switch (op->ospf_type) { 75917680Spst 76026180Sfenner case OSPF_TYPE_UMD: 76126180Sfenner /* 76226180Sfenner * Rob Coltun's special monitoring packets; 76326180Sfenner * do nothing 76426180Sfenner */ 76526180Sfenner break; 76617680Spst 76726180Sfenner case OSPF_TYPE_HELLO: 768127668Sbms printf("\n\tOptions: [%s]", 769127668Sbms bittok2str(ospf_option_values,"none",op->ospf_hello.hello_options)); 770127668Sbms 771127668Sbms TCHECK(op->ospf_hello.hello_deadint); 772127668Sbms printf("\n\t Hello Timer: %us, Dead Timer %us, Mask: %s, Priority: %u", 773127668Sbms EXTRACT_16BITS(&op->ospf_hello.hello_helloint), 774127668Sbms EXTRACT_32BITS(&op->ospf_hello.hello_deadint), 775127668Sbms ipaddr_string(&op->ospf_hello.hello_mask), 776127668Sbms op->ospf_hello.hello_priority); 777127668Sbms 77826180Sfenner TCHECK(op->ospf_hello.hello_dr); 77926180Sfenner if (op->ospf_hello.hello_dr.s_addr != 0) 780127668Sbms printf("\n\t Designated Router %s", 78126180Sfenner ipaddr_string(&op->ospf_hello.hello_dr)); 782127668Sbms 78326180Sfenner TCHECK(op->ospf_hello.hello_bdr); 78426180Sfenner if (op->ospf_hello.hello_bdr.s_addr != 0) 785127668Sbms printf(", Backup Designated Router %s", 78626180Sfenner ipaddr_string(&op->ospf_hello.hello_bdr)); 787127668Sbms 788127668Sbms ap = op->ospf_hello.hello_neighbor; 789127668Sbms if ((u_char *)ap < dataend) 790127668Sbms printf("\n\t Neighbor List:"); 791127668Sbms while ((u_char *)ap < dataend) { 792127668Sbms TCHECK(*ap); 793127668Sbms printf("\n\t %s", ipaddr_string(ap)); 794127668Sbms ++ap; 795127668Sbms } 79626180Sfenner break; /* HELLO */ 79717680Spst 798127668Sbms case OSPF_TYPE_DD: 79926180Sfenner TCHECK(op->ospf_db.db_options); 800127668Sbms printf("\n\tOptions: [%s]", 801127668Sbms bittok2str(ospf_option_values,"none",op->ospf_db.db_options)); 80226180Sfenner TCHECK(op->ospf_db.db_flags); 803127668Sbms printf(", DD Flags: [%s]", 804127668Sbms bittok2str(ospf_dd_flag_values,"none",op->ospf_db.db_flags)); 80517680Spst 80626180Sfenner if (vflag) { 80726180Sfenner /* Print all the LS adv's */ 80826180Sfenner lshp = op->ospf_db.db_lshdr; 809127668Sbms while (ospf_print_lshdr(lshp) != -1) { 81026180Sfenner ++lshp; 81126180Sfenner } 81226180Sfenner } 81326180Sfenner break; 81417680Spst 815127668Sbms case OSPF_TYPE_LS_REQ: 816127668Sbms lsrp = op->ospf_lsr; 817127668Sbms while ((u_char *)lsrp < dataend) { 818127668Sbms TCHECK(*lsrp); 819127668Sbms 820127668Sbms printf("\n\t Advertising Router: %s, %s LSA (%u)", 821127668Sbms ipaddr_string(&lsrp->ls_router), 822127668Sbms tok2str(lsa_values,"unknown",EXTRACT_32BITS(lsrp->ls_type)), 823127668Sbms EXTRACT_32BITS(&lsrp->ls_type)); 824127668Sbms 825127668Sbms switch (EXTRACT_32BITS(lsrp->ls_type)) { 826127668Sbms /* the LSA header for opaque LSAs was slightly changed */ 827127668Sbms case LS_TYPE_OPAQUE_LL: 828127668Sbms case LS_TYPE_OPAQUE_AL: 829127668Sbms case LS_TYPE_OPAQUE_DW: 830127668Sbms printf(", Opaque-Type: %s LSA (%u), Opaque-ID: %u", 831127668Sbms tok2str(lsa_opaque_values, "unknown",lsrp->un_ls_stateid.opaque_field.opaque_type), 832127668Sbms lsrp->un_ls_stateid.opaque_field.opaque_type, 833127668Sbms EXTRACT_24BITS(&lsrp->un_ls_stateid.opaque_field.opaque_id)); 834127668Sbms break; 835127668Sbms default: 836127668Sbms printf(", LSA-ID: %s", 837127668Sbms ipaddr_string(&lsrp->un_ls_stateid.ls_stateid)); 838127668Sbms break; 839127668Sbms } 840127668Sbms 841127668Sbms ++lsrp; 842127668Sbms } 84326180Sfenner break; 84417680Spst 845127668Sbms case OSPF_TYPE_LS_UPDATE: 846127668Sbms lsap = op->ospf_lsu.lsu_lsa; 847127668Sbms TCHECK(op->ospf_lsu.lsu_count); 848127668Sbms lsa_count_max = EXTRACT_32BITS(&op->ospf_lsu.lsu_count); 849127668Sbms printf(", %d LSA%s",lsa_count_max, lsa_count_max > 1 ? "s" : ""); 850127668Sbms for (lsa_count=1;lsa_count <= lsa_count_max;lsa_count++) { 851127668Sbms printf("\n\t LSA #%u",lsa_count); 852127668Sbms lsap = (const struct lsa *)ospf_print_lsa(lsap); 853127668Sbms if (lsap == NULL) 854127668Sbms goto trunc; 855127668Sbms } 85626180Sfenner break; 85717680Spst 858127668Sbms case OSPF_TYPE_LS_ACK: 859127668Sbms lshp = op->ospf_lsa.lsa_lshdr; 860127668Sbms while (ospf_print_lshdr(lshp) != -1) { 861127668Sbms ++lshp; 862127668Sbms } 863127668Sbms break; 86417680Spst 86517680Spst default: 866127668Sbms printf("v2 type (%d)", op->ospf_type); 86726180Sfenner break; 86817680Spst } 86926180Sfenner return (0); 87026180Sfennertrunc: 87126180Sfenner return (1); 87226180Sfenner} 87317680Spst 87426180Sfennervoid 87526180Sfennerospf_print(register const u_char *bp, register u_int length, 876147899Ssam const u_char *bp2 _U_) 87726180Sfenner{ 87826180Sfenner register const struct ospfhdr *op; 87926180Sfenner register const u_char *dataend; 88026180Sfenner register const char *cp; 88117680Spst 88226180Sfenner op = (struct ospfhdr *)bp; 88317680Spst 88439297Sfenner /* XXX Before we do anything else, strip off the MD5 trailer */ 88539297Sfenner TCHECK(op->ospf_authtype); 886127668Sbms if (EXTRACT_16BITS(&op->ospf_authtype) == OSPF_AUTH_MD5) { 88739297Sfenner length -= OSPF_AUTH_MD5_LEN; 88839297Sfenner snapend -= OSPF_AUTH_MD5_LEN; 88939297Sfenner } 89039297Sfenner 89126180Sfenner /* If the type is valid translate it, or just print the type */ 89226180Sfenner /* value. If it's not valid, say so and return */ 89326180Sfenner TCHECK(op->ospf_type); 894127668Sbms cp = tok2str(type2str, "unknown LS-type", op->ospf_type); 895146773Ssam printf("OSPFv%u, %s, length: %u", 896127668Sbms op->ospf_version, 897127668Sbms cp, 898127668Sbms length); 899127668Sbms if (*cp == 'u') 90026180Sfenner return; 90117680Spst 902127668Sbms if(!vflag) /* non verbose - so lets bail out here */ 903127668Sbms return; 904127668Sbms 90526180Sfenner TCHECK(op->ospf_len); 906127668Sbms if (length != EXTRACT_16BITS(&op->ospf_len)) { 907127668Sbms printf(" [len %d]", EXTRACT_16BITS(&op->ospf_len)); 90826180Sfenner return; 90926180Sfenner } 91026180Sfenner dataend = bp + length; 91117680Spst 91226180Sfenner TCHECK(op->ospf_routerid); 913127668Sbms printf("\n\tRouter-ID: %s", ipaddr_string(&op->ospf_routerid)); 91417680Spst 91526180Sfenner TCHECK(op->ospf_areaid); 91626180Sfenner if (op->ospf_areaid.s_addr != 0) 917127668Sbms printf(", Area %s", ipaddr_string(&op->ospf_areaid)); 91826180Sfenner else 919127668Sbms printf(", Backbone Area"); 92017680Spst 92126180Sfenner if (vflag) { 92226180Sfenner /* Print authentication data (should we really do this?) */ 92326180Sfenner TCHECK2(op->ospf_authdata[0], sizeof(op->ospf_authdata)); 92417680Spst 925127668Sbms printf(", Authentication Type: %s (%u)", 926127668Sbms tok2str(ospf_authtype_values,"unknown",EXTRACT_16BITS(&op->ospf_authtype)), 927127668Sbms EXTRACT_16BITS(&op->ospf_authtype)); 928127668Sbms 929127668Sbms switch (EXTRACT_16BITS(&op->ospf_authtype)) { 930127668Sbms 93126180Sfenner case OSPF_AUTH_NONE: 93217680Spst break; 93317680Spst 93426180Sfenner case OSPF_AUTH_SIMPLE: 935172683Smlaier printf("\n\tSimple text password: "); 936172683Smlaier safeputs(op->ospf_authdata, OSPF_AUTH_SIMPLE_LEN); 93717680Spst break; 93817680Spst 93939297Sfenner case OSPF_AUTH_MD5: 940127668Sbms printf("\n\tKey-ID: %u, Auth-Length: %u, Crypto Sequence Number: 0x%08x", 941127668Sbms *((op->ospf_authdata)+2), 942127668Sbms *((op->ospf_authdata)+3), 943127668Sbms EXTRACT_32BITS((op->ospf_authdata)+4)); 94439297Sfenner break; 94539297Sfenner 94626180Sfenner default: 94726180Sfenner return; 94817680Spst } 94926180Sfenner } 95026180Sfenner /* Do rest according to version. */ 95126180Sfenner switch (op->ospf_version) { 95217680Spst 95326180Sfenner case 2: 95426180Sfenner /* ospf version 2 */ 95526180Sfenner if (ospf_decode_v2(op, dataend)) 95626180Sfenner goto trunc; 95726180Sfenner break; 95817680Spst 95926180Sfenner default: 96026180Sfenner printf(" ospf [version %d]", op->ospf_version); 96117680Spst break; 96226180Sfenner } /* end switch on version */ 96317680Spst 96426180Sfenner return; 96526180Sfennertrunc: 96626180Sfenner fputs(tstr, stdout); 96717680Spst} 968