117680Spst/* 217680Spst * Copyright (c) 1992, 1993, 1994, 1995, 1996 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. 2026183Sfenner * 2117680Spst * Original code by Matt Thomas, Digital Equipment Corporation 2256896Sfenner * 2398527Sfenner * Extensively modified by Hannes Gredler (hannes@juniper.net) for more 24146778Ssam * complete IS-IS & CLNP support. 2598527Sfenner * 2656896Sfenner * $FreeBSD$ 2717680Spst */ 2817680Spst 2917680Spst#ifndef lint 30127675Sbmsstatic const char rcsid[] _U_ = 31214478Srpaulo "@(#) $Header: /tcpdump/master/tcpdump/print-isoclns.c,v 1.165 2008-08-16 13:38:15 hannes Exp $ (LBL)"; 3217680Spst#endif 3317680Spst 3456896Sfenner#ifdef HAVE_CONFIG_H 3556896Sfenner#include "config.h" 3656896Sfenner#endif 3756896Sfenner 38127675Sbms#include <tcpdump-stdinc.h> 3917680Spst 4017680Spst#include <stdio.h> 4198527Sfenner#include <string.h> 4217680Spst 4317680Spst#include "interface.h" 4417680Spst#include "addrtoname.h" 4517680Spst#include "ethertype.h" 4675118Sfenner#include "ether.h" 47146778Ssam#include "nlpid.h" 4817688Spst#include "extract.h" 49127675Sbms#include "gmpls.h" 50146778Ssam#include "oui.h" 51214478Srpaulo#include "signature.h" 5217680Spst 5332149Spst/* 5432149Spst * IS-IS is defined in ISO 10589. Look there for protocol definitions. 5532149Spst */ 5632149Spst 5775118Sfenner#define SYSTEM_ID_LEN ETHER_ADDR_LEN 58127675Sbms#define NODE_ID_LEN SYSTEM_ID_LEN+1 59127675Sbms#define LSP_ID_LEN SYSTEM_ID_LEN+2 60127675Sbms 6132149Spst#define ISIS_VERSION 1 62146778Ssam#define ESIS_VERSION 1 63146778Ssam#define CLNP_VERSION 1 6432149Spst 65146778Ssam#define ISIS_PDU_TYPE_MASK 0x1F 66146778Ssam#define ESIS_PDU_TYPE_MASK 0x1F 67146778Ssam#define CLNP_PDU_TYPE_MASK 0x1F 68146778Ssam#define CLNP_FLAG_MASK 0xE0 69146778Ssam#define ISIS_LAN_PRIORITY_MASK 0x7F 7032149Spst 71146778Ssam#define ISIS_PDU_L1_LAN_IIH 15 72146778Ssam#define ISIS_PDU_L2_LAN_IIH 16 73146778Ssam#define ISIS_PDU_PTP_IIH 17 74146778Ssam#define ISIS_PDU_L1_LSP 18 75146778Ssam#define ISIS_PDU_L2_LSP 20 76146778Ssam#define ISIS_PDU_L1_CSNP 24 77146778Ssam#define ISIS_PDU_L2_CSNP 25 78146778Ssam#define ISIS_PDU_L1_PSNP 26 79146778Ssam#define ISIS_PDU_L2_PSNP 27 80146778Ssam 81127675Sbmsstatic struct tok isis_pdu_values[] = { 82146778Ssam { ISIS_PDU_L1_LAN_IIH, "L1 Lan IIH"}, 83146778Ssam { ISIS_PDU_L2_LAN_IIH, "L2 Lan IIH"}, 84146778Ssam { ISIS_PDU_PTP_IIH, "p2p IIH"}, 85146778Ssam { ISIS_PDU_L1_LSP, "L1 LSP"}, 86146778Ssam { ISIS_PDU_L2_LSP, "L2 LSP"}, 87146778Ssam { ISIS_PDU_L1_CSNP, "L1 CSNP"}, 88146778Ssam { ISIS_PDU_L2_CSNP, "L2 CSNP"}, 89146778Ssam { ISIS_PDU_L1_PSNP, "L1 PSNP"}, 90146778Ssam { ISIS_PDU_L2_PSNP, "L2 PSNP"}, 91127675Sbms { 0, NULL} 92127675Sbms}; 9398527Sfenner 9432149Spst/* 9532149Spst * A TLV is a tuple of a type, length and a value and is normally used for 9632149Spst * encoding information in all sorts of places. This is an enumeration of 9732149Spst * the well known types. 98127675Sbms * 99127675Sbms * list taken from rfc3359 plus some memory from veterans ;-) 10032149Spst */ 10132149Spst 102146778Ssam#define ISIS_TLV_AREA_ADDR 1 /* iso10589 */ 103146778Ssam#define ISIS_TLV_IS_REACH 2 /* iso10589 */ 104146778Ssam#define ISIS_TLV_ESNEIGH 3 /* iso10589 */ 105146778Ssam#define ISIS_TLV_PART_DIS 4 /* iso10589 */ 106146778Ssam#define ISIS_TLV_PREFIX_NEIGH 5 /* iso10589 */ 107146778Ssam#define ISIS_TLV_ISNEIGH 6 /* iso10589 */ 108146778Ssam#define ISIS_TLV_ISNEIGH_VARLEN 7 /* iso10589 */ 109146778Ssam#define ISIS_TLV_PADDING 8 /* iso10589 */ 110146778Ssam#define ISIS_TLV_LSP 9 /* iso10589 */ 111146778Ssam#define ISIS_TLV_AUTH 10 /* iso10589, rfc3567 */ 112146778Ssam#define ISIS_TLV_CHECKSUM 12 /* rfc3358 */ 113162021Ssam#define ISIS_TLV_CHECKSUM_MINLEN 2 114146778Ssam#define ISIS_TLV_LSP_BUFFERSIZE 14 /* iso10589 rev2 */ 115162021Ssam#define ISIS_TLV_LSP_BUFFERSIZE_MINLEN 2 116146778Ssam#define ISIS_TLV_EXT_IS_REACH 22 /* draft-ietf-isis-traffic-05 */ 117146778Ssam#define ISIS_TLV_IS_ALIAS_ID 24 /* draft-ietf-isis-ext-lsp-frags-02 */ 118146778Ssam#define ISIS_TLV_DECNET_PHASE4 42 119146778Ssam#define ISIS_TLV_LUCENT_PRIVATE 66 120146778Ssam#define ISIS_TLV_INT_IP_REACH 128 /* rfc1195, rfc2966 */ 121146778Ssam#define ISIS_TLV_PROTOCOLS 129 /* rfc1195 */ 122146778Ssam#define ISIS_TLV_EXT_IP_REACH 130 /* rfc1195, rfc2966 */ 123146778Ssam#define ISIS_TLV_IDRP_INFO 131 /* rfc1195 */ 124162021Ssam#define ISIS_TLV_IDRP_INFO_MINLEN 1 125146778Ssam#define ISIS_TLV_IPADDR 132 /* rfc1195 */ 126146778Ssam#define ISIS_TLV_IPAUTH 133 /* rfc1195 */ 127146778Ssam#define ISIS_TLV_TE_ROUTER_ID 134 /* draft-ietf-isis-traffic-05 */ 128146778Ssam#define ISIS_TLV_EXTD_IP_REACH 135 /* draft-ietf-isis-traffic-05 */ 129146778Ssam#define ISIS_TLV_HOSTNAME 137 /* rfc2763 */ 130146778Ssam#define ISIS_TLV_SHARED_RISK_GROUP 138 /* draft-ietf-isis-gmpls-extensions */ 131252283Sdelphij#define ISIS_TLV_MT_PORT_CAP 143 /* rfc6165 */ 132252283Sdelphij#define ISIS_TLV_MT_CAPABILITY 144 /* rfc6329 */ 133146778Ssam#define ISIS_TLV_NORTEL_PRIVATE1 176 134146778Ssam#define ISIS_TLV_NORTEL_PRIVATE2 177 135147904Ssam#define ISIS_TLV_RESTART_SIGNALING 211 /* rfc3847 */ 136162021Ssam#define ISIS_TLV_RESTART_SIGNALING_FLAGLEN 1 137162021Ssam#define ISIS_TLV_RESTART_SIGNALING_HOLDTIMELEN 2 138146778Ssam#define ISIS_TLV_MT_IS_REACH 222 /* draft-ietf-isis-wg-multi-topology-05 */ 139146778Ssam#define ISIS_TLV_MT_SUPPORTED 229 /* draft-ietf-isis-wg-multi-topology-05 */ 140162021Ssam#define ISIS_TLV_MT_SUPPORTED_MINLEN 2 141146778Ssam#define ISIS_TLV_IP6ADDR 232 /* draft-ietf-isis-ipv6-02 */ 142146778Ssam#define ISIS_TLV_MT_IP_REACH 235 /* draft-ietf-isis-wg-multi-topology-05 */ 143146778Ssam#define ISIS_TLV_IP6_REACH 236 /* draft-ietf-isis-ipv6-02 */ 144146778Ssam#define ISIS_TLV_MT_IP6_REACH 237 /* draft-ietf-isis-wg-multi-topology-05 */ 145146778Ssam#define ISIS_TLV_PTP_ADJ 240 /* rfc3373 */ 146146778Ssam#define ISIS_TLV_IIH_SEQNR 241 /* draft-shen-isis-iih-sequence-00 */ 147162021Ssam#define ISIS_TLV_IIH_SEQNR_MINLEN 4 148146778Ssam#define ISIS_TLV_VENDOR_PRIVATE 250 /* draft-ietf-isis-experimental-tlv-01 */ 149162021Ssam#define ISIS_TLV_VENDOR_PRIVATE_MINLEN 3 15032149Spst 151127675Sbmsstatic struct tok isis_tlv_values[] = { 152146778Ssam { ISIS_TLV_AREA_ADDR, "Area address(es)"}, 153146778Ssam { ISIS_TLV_IS_REACH, "IS Reachability"}, 154146778Ssam { ISIS_TLV_ESNEIGH, "ES Neighbor(s)"}, 155146778Ssam { ISIS_TLV_PART_DIS, "Partition DIS"}, 156146778Ssam { ISIS_TLV_PREFIX_NEIGH, "Prefix Neighbors"}, 157146778Ssam { ISIS_TLV_ISNEIGH, "IS Neighbor(s)"}, 158146778Ssam { ISIS_TLV_ISNEIGH_VARLEN, "IS Neighbor(s) (variable length)"}, 159146778Ssam { ISIS_TLV_PADDING, "Padding"}, 160146778Ssam { ISIS_TLV_LSP, "LSP entries"}, 161146778Ssam { ISIS_TLV_AUTH, "Authentication"}, 162146778Ssam { ISIS_TLV_CHECKSUM, "Checksum"}, 163146778Ssam { ISIS_TLV_LSP_BUFFERSIZE, "LSP Buffersize"}, 164146778Ssam { ISIS_TLV_EXT_IS_REACH, "Extended IS Reachability"}, 165146778Ssam { ISIS_TLV_IS_ALIAS_ID, "IS Alias ID"}, 166146778Ssam { ISIS_TLV_DECNET_PHASE4, "DECnet Phase IV"}, 167146778Ssam { ISIS_TLV_LUCENT_PRIVATE, "Lucent Proprietary"}, 168146778Ssam { ISIS_TLV_INT_IP_REACH, "IPv4 Internal Reachability"}, 169146778Ssam { ISIS_TLV_PROTOCOLS, "Protocols supported"}, 170146778Ssam { ISIS_TLV_EXT_IP_REACH, "IPv4 External Reachability"}, 171146778Ssam { ISIS_TLV_IDRP_INFO, "Inter-Domain Information Type"}, 172146778Ssam { ISIS_TLV_IPADDR, "IPv4 Interface address(es)"}, 173146778Ssam { ISIS_TLV_IPAUTH, "IPv4 authentication (deprecated)"}, 174146778Ssam { ISIS_TLV_TE_ROUTER_ID, "Traffic Engineering Router ID"}, 175146778Ssam { ISIS_TLV_EXTD_IP_REACH, "Extended IPv4 Reachability"}, 176146778Ssam { ISIS_TLV_SHARED_RISK_GROUP, "Shared Risk Link Group"}, 177252283Sdelphij { ISIS_TLV_MT_PORT_CAP, "Multi-Topology-Aware Port Capability"}, 178252283Sdelphij { ISIS_TLV_MT_CAPABILITY, "Multi-Topology Capability"}, 179146778Ssam { ISIS_TLV_NORTEL_PRIVATE1, "Nortel Proprietary"}, 180146778Ssam { ISIS_TLV_NORTEL_PRIVATE2, "Nortel Proprietary"}, 181146778Ssam { ISIS_TLV_HOSTNAME, "Hostname"}, 182146778Ssam { ISIS_TLV_RESTART_SIGNALING, "Restart Signaling"}, 183146778Ssam { ISIS_TLV_MT_IS_REACH, "Multi Topology IS Reachability"}, 184146778Ssam { ISIS_TLV_MT_SUPPORTED, "Multi Topology"}, 185146778Ssam { ISIS_TLV_IP6ADDR, "IPv6 Interface address(es)"}, 186146778Ssam { ISIS_TLV_MT_IP_REACH, "Multi-Topology IPv4 Reachability"}, 187146778Ssam { ISIS_TLV_IP6_REACH, "IPv6 reachability"}, 188146778Ssam { ISIS_TLV_MT_IP6_REACH, "Multi-Topology IP6 Reachability"}, 189146778Ssam { ISIS_TLV_PTP_ADJ, "Point-to-point Adjacency State"}, 190146778Ssam { ISIS_TLV_IIH_SEQNR, "Hello PDU Sequence Number"}, 191146778Ssam { ISIS_TLV_VENDOR_PRIVATE, "Vendor Private"}, 192127675Sbms { 0, NULL } 193127675Sbms}; 19498527Sfenner 195146778Ssam#define ESIS_OPTION_PROTOCOLS 129 196146778Ssam#define ESIS_OPTION_QOS_MAINTENANCE 195 /* iso9542 */ 197146778Ssam#define ESIS_OPTION_SECURITY 197 /* iso9542 */ 198146778Ssam#define ESIS_OPTION_ES_CONF_TIME 198 /* iso9542 */ 199146778Ssam#define ESIS_OPTION_PRIORITY 205 /* iso9542 */ 200146778Ssam#define ESIS_OPTION_ADDRESS_MASK 225 /* iso9542 */ 201146778Ssam#define ESIS_OPTION_SNPA_MASK 226 /* iso9542 */ 20298527Sfenner 203146778Ssamstatic struct tok esis_option_values[] = { 204146778Ssam { ESIS_OPTION_PROTOCOLS, "Protocols supported"}, 205146778Ssam { ESIS_OPTION_QOS_MAINTENANCE, "QoS Maintenance" }, 206146778Ssam { ESIS_OPTION_SECURITY, "Security" }, 207146778Ssam { ESIS_OPTION_ES_CONF_TIME, "ES Configuration Time" }, 208146778Ssam { ESIS_OPTION_PRIORITY, "Priority" }, 209146778Ssam { ESIS_OPTION_ADDRESS_MASK, "Addressk Mask" }, 210146778Ssam { ESIS_OPTION_SNPA_MASK, "SNPA Mask" }, 211146778Ssam { 0, NULL } 212146778Ssam}; 213146778Ssam 214146778Ssam#define CLNP_OPTION_DISCARD_REASON 193 215146778Ssam#define CLNP_OPTION_QOS_MAINTENANCE 195 /* iso8473 */ 216147904Ssam#define CLNP_OPTION_SECURITY 197 /* iso8473 */ 217147904Ssam#define CLNP_OPTION_SOURCE_ROUTING 200 /* iso8473 */ 218147904Ssam#define CLNP_OPTION_ROUTE_RECORDING 203 /* iso8473 */ 219147904Ssam#define CLNP_OPTION_PADDING 204 /* iso8473 */ 220146778Ssam#define CLNP_OPTION_PRIORITY 205 /* iso8473 */ 221146778Ssam 222146778Ssamstatic struct tok clnp_option_values[] = { 223146778Ssam { CLNP_OPTION_DISCARD_REASON, "Discard Reason"}, 224146778Ssam { CLNP_OPTION_PRIORITY, "Priority"}, 225146778Ssam { CLNP_OPTION_QOS_MAINTENANCE, "QoS Maintenance"}, 226147904Ssam { CLNP_OPTION_SECURITY, "Security"}, 227147904Ssam { CLNP_OPTION_SOURCE_ROUTING, "Source Routing"}, 228147904Ssam { CLNP_OPTION_ROUTE_RECORDING, "Route Recording"}, 229147904Ssam { CLNP_OPTION_PADDING, "Padding"}, 230146778Ssam { 0, NULL } 231146778Ssam}; 232146778Ssam 233146778Ssamstatic struct tok clnp_option_rfd_class_values[] = { 234146778Ssam { 0x0, "General"}, 235146778Ssam { 0x8, "Address"}, 236146778Ssam { 0x9, "Source Routeing"}, 237146778Ssam { 0xa, "Lifetime"}, 238146778Ssam { 0xb, "PDU Discarded"}, 239146778Ssam { 0xc, "Reassembly"}, 240146778Ssam { 0, NULL } 241146778Ssam}; 242146778Ssam 243146778Ssamstatic struct tok clnp_option_rfd_general_values[] = { 244146778Ssam { 0x0, "Reason not specified"}, 245146778Ssam { 0x1, "Protocol procedure error"}, 246146778Ssam { 0x2, "Incorrect checksum"}, 247146778Ssam { 0x3, "PDU discarded due to congestion"}, 248146778Ssam { 0x4, "Header syntax error (cannot be parsed)"}, 249146778Ssam { 0x5, "Segmentation needed but not permitted"}, 250146778Ssam { 0x6, "Incomplete PDU received"}, 251146778Ssam { 0x7, "Duplicate option"}, 252146778Ssam { 0, NULL } 253146778Ssam}; 254146778Ssam 255146778Ssamstatic struct tok clnp_option_rfd_address_values[] = { 256146778Ssam { 0x0, "Destination address unreachable"}, 257146778Ssam { 0x1, "Destination address unknown"}, 258146778Ssam { 0, NULL } 259146778Ssam}; 260146778Ssam 261146778Ssamstatic struct tok clnp_option_rfd_source_routeing_values[] = { 262146778Ssam { 0x0, "Unspecified source routeing error"}, 263146778Ssam { 0x1, "Syntax error in source routeing field"}, 264146778Ssam { 0x2, "Unknown address in source routeing field"}, 265146778Ssam { 0x3, "Path not acceptable"}, 266146778Ssam { 0, NULL } 267146778Ssam}; 268146778Ssam 269146778Ssamstatic struct tok clnp_option_rfd_lifetime_values[] = { 270146778Ssam { 0x0, "Lifetime expired while data unit in transit"}, 271146778Ssam { 0x1, "Lifetime expired during reassembly"}, 272146778Ssam { 0, NULL } 273146778Ssam}; 274146778Ssam 275146778Ssamstatic struct tok clnp_option_rfd_pdu_discard_values[] = { 276146778Ssam { 0x0, "Unsupported option not specified"}, 277146778Ssam { 0x1, "Unsupported protocol version"}, 278146778Ssam { 0x2, "Unsupported security option"}, 279146778Ssam { 0x3, "Unsupported source routeing option"}, 280146778Ssam { 0x4, "Unsupported recording of route option"}, 281146778Ssam { 0, NULL } 282146778Ssam}; 283146778Ssam 284146778Ssamstatic struct tok clnp_option_rfd_reassembly_values[] = { 285146778Ssam { 0x0, "Reassembly interference"}, 286146778Ssam { 0, NULL } 287146778Ssam}; 288146778Ssam 289146778Ssam/* array of 16 error-classes */ 290146778Ssamstatic struct tok *clnp_option_rfd_error_class[] = { 291146778Ssam clnp_option_rfd_general_values, 292146778Ssam NULL, 293146778Ssam NULL, 294146778Ssam NULL, 295146778Ssam NULL, 296146778Ssam NULL, 297146778Ssam NULL, 298146778Ssam NULL, 299146778Ssam clnp_option_rfd_address_values, 300146778Ssam clnp_option_rfd_source_routeing_values, 301146778Ssam clnp_option_rfd_lifetime_values, 302146778Ssam clnp_option_rfd_pdu_discard_values, 303146778Ssam clnp_option_rfd_reassembly_values, 304146778Ssam NULL, 305146778Ssam NULL, 306146778Ssam NULL 307146778Ssam}; 308146778Ssam 309147904Ssam#define CLNP_OPTION_OPTION_QOS_MASK 0x3f 310147904Ssam#define CLNP_OPTION_SCOPE_MASK 0xc0 311147904Ssam#define CLNP_OPTION_SCOPE_SA_SPEC 0x40 312147904Ssam#define CLNP_OPTION_SCOPE_DA_SPEC 0x80 313147904Ssam#define CLNP_OPTION_SCOPE_GLOBAL 0xc0 314146778Ssam 315147904Ssamstatic struct tok clnp_option_scope_values[] = { 316147904Ssam { CLNP_OPTION_SCOPE_SA_SPEC, "Source Address Specific"}, 317147904Ssam { CLNP_OPTION_SCOPE_DA_SPEC, "Destination Address Specific"}, 318147904Ssam { CLNP_OPTION_SCOPE_GLOBAL, "Globally unique"}, 319147904Ssam { 0, NULL } 320147904Ssam}; 321147904Ssam 322147904Ssamstatic struct tok clnp_option_sr_rr_values[] = { 323147904Ssam { 0x0, "partial"}, 324147904Ssam { 0x1, "complete"}, 325147904Ssam { 0, NULL } 326147904Ssam}; 327147904Ssam 328147904Ssamstatic struct tok clnp_option_sr_rr_string_values[] = { 329147904Ssam { CLNP_OPTION_SOURCE_ROUTING, "source routing"}, 330147904Ssam { CLNP_OPTION_ROUTE_RECORDING, "recording of route in progress"}, 331147904Ssam { 0, NULL } 332147904Ssam}; 333147904Ssam 334147904Ssamstatic struct tok clnp_option_qos_global_values[] = { 335147904Ssam { 0x20, "reserved"}, 336147904Ssam { 0x10, "sequencing vs. delay"}, 337147904Ssam { 0x08, "congested"}, 338147904Ssam { 0x04, "delay vs. cost"}, 339147904Ssam { 0x02, "error vs. delay"}, 340147904Ssam { 0x01, "error vs. cost"}, 341147904Ssam { 0, NULL } 342147904Ssam}; 343147904Ssam 344146778Ssam#define ISIS_SUBTLV_EXT_IS_REACH_ADMIN_GROUP 3 /* draft-ietf-isis-traffic-05 */ 345190207Srpaulo#define ISIS_SUBTLV_EXT_IS_REACH_LINK_LOCAL_REMOTE_ID 4 /* rfc4205 */ 346146778Ssam#define ISIS_SUBTLV_EXT_IS_REACH_LINK_REMOTE_ID 5 /* draft-ietf-isis-traffic-05 */ 347146778Ssam#define ISIS_SUBTLV_EXT_IS_REACH_IPV4_INTF_ADDR 6 /* draft-ietf-isis-traffic-05 */ 348146778Ssam#define ISIS_SUBTLV_EXT_IS_REACH_IPV4_NEIGHBOR_ADDR 8 /* draft-ietf-isis-traffic-05 */ 349146778Ssam#define ISIS_SUBTLV_EXT_IS_REACH_MAX_LINK_BW 9 /* draft-ietf-isis-traffic-05 */ 350146778Ssam#define ISIS_SUBTLV_EXT_IS_REACH_RESERVABLE_BW 10 /* draft-ietf-isis-traffic-05 */ 351162021Ssam#define ISIS_SUBTLV_EXT_IS_REACH_UNRESERVED_BW 11 /* rfc4124 */ 352162021Ssam#define ISIS_SUBTLV_EXT_IS_REACH_BW_CONSTRAINTS_OLD 12 /* draft-ietf-tewg-diff-te-proto-06 */ 353146778Ssam#define ISIS_SUBTLV_EXT_IS_REACH_TE_METRIC 18 /* draft-ietf-isis-traffic-05 */ 354190207Srpaulo#define ISIS_SUBTLV_EXT_IS_REACH_LINK_ATTRIBUTE 19 /* draft-ietf-isis-link-attr-01 */ 355190207Srpaulo#define ISIS_SUBTLV_EXT_IS_REACH_LINK_PROTECTION_TYPE 20 /* rfc4205 */ 356190207Srpaulo#define ISIS_SUBTLV_EXT_IS_REACH_INTF_SW_CAP_DESCR 21 /* rfc4205 */ 357162021Ssam#define ISIS_SUBTLV_EXT_IS_REACH_BW_CONSTRAINTS 22 /* rfc4124 */ 358146778Ssam 359252283Sdelphij#define ISIS_SUBTLV_SPB_METRIC 29 /* rfc6329 */ 360252283Sdelphij 361127675Sbmsstatic struct tok isis_ext_is_reach_subtlv_values[] = { 362146778Ssam { ISIS_SUBTLV_EXT_IS_REACH_ADMIN_GROUP, "Administrative groups" }, 363146778Ssam { ISIS_SUBTLV_EXT_IS_REACH_LINK_LOCAL_REMOTE_ID, "Link Local/Remote Identifier" }, 364146778Ssam { ISIS_SUBTLV_EXT_IS_REACH_LINK_REMOTE_ID, "Link Remote Identifier" }, 365146778Ssam { ISIS_SUBTLV_EXT_IS_REACH_IPV4_INTF_ADDR, "IPv4 interface address" }, 366146778Ssam { ISIS_SUBTLV_EXT_IS_REACH_IPV4_NEIGHBOR_ADDR, "IPv4 neighbor address" }, 367146778Ssam { ISIS_SUBTLV_EXT_IS_REACH_MAX_LINK_BW, "Maximum link bandwidth" }, 368146778Ssam { ISIS_SUBTLV_EXT_IS_REACH_RESERVABLE_BW, "Reservable link bandwidth" }, 369146778Ssam { ISIS_SUBTLV_EXT_IS_REACH_UNRESERVED_BW, "Unreserved bandwidth" }, 370146778Ssam { ISIS_SUBTLV_EXT_IS_REACH_TE_METRIC, "Traffic Engineering Metric" }, 371190207Srpaulo { ISIS_SUBTLV_EXT_IS_REACH_LINK_ATTRIBUTE, "Link Attribute" }, 372146778Ssam { ISIS_SUBTLV_EXT_IS_REACH_LINK_PROTECTION_TYPE, "Link Protection Type" }, 373146778Ssam { ISIS_SUBTLV_EXT_IS_REACH_INTF_SW_CAP_DESCR, "Interface Switching Capability" }, 374162021Ssam { ISIS_SUBTLV_EXT_IS_REACH_BW_CONSTRAINTS_OLD, "Bandwidth Constraints (old)" }, 375162021Ssam { ISIS_SUBTLV_EXT_IS_REACH_BW_CONSTRAINTS, "Bandwidth Constraints" }, 376252283Sdelphij { ISIS_SUBTLV_SPB_METRIC, "SPB Metric" }, 377146778Ssam { 250, "Reserved for cisco specific extensions" }, 378146778Ssam { 251, "Reserved for cisco specific extensions" }, 379146778Ssam { 252, "Reserved for cisco specific extensions" }, 380146778Ssam { 253, "Reserved for cisco specific extensions" }, 381146778Ssam { 254, "Reserved for cisco specific extensions" }, 382146778Ssam { 255, "Reserved for future expansion" }, 383127675Sbms { 0, NULL } 384127675Sbms}; 38598527Sfenner 386146778Ssam#define ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG32 1 /* draft-ietf-isis-admin-tags-01 */ 387146778Ssam#define ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG64 2 /* draft-ietf-isis-admin-tags-01 */ 388146778Ssam#define ISIS_SUBTLV_EXTD_IP_REACH_MGMT_PREFIX_COLOR 117 /* draft-ietf-isis-wg-multi-topology-05 */ 389127675Sbms 390127675Sbmsstatic struct tok isis_ext_ip_reach_subtlv_values[] = { 391146778Ssam { ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG32, "32-Bit Administrative tag" }, 392146778Ssam { ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG64, "64-Bit Administrative tag" }, 393146778Ssam { ISIS_SUBTLV_EXTD_IP_REACH_MGMT_PREFIX_COLOR, "Management Prefix Color" }, 394127675Sbms { 0, NULL } 395127675Sbms}; 396127675Sbms 397190207Srpaulostatic struct tok isis_subtlv_link_attribute_values[] = { 398190207Srpaulo { 0x01, "Local Protection Available" }, 399190207Srpaulo { 0x02, "Link excluded from local protection path" }, 400190207Srpaulo { 0x04, "Local maintenance required"}, 401190207Srpaulo { 0, NULL } 402190207Srpaulo}; 403190207Srpaulo 404146778Ssam#define ISIS_SUBTLV_AUTH_SIMPLE 1 405236192Sdelphij#define ISIS_SUBTLV_AUTH_GENERIC 3 /* rfc 5310 */ 406146778Ssam#define ISIS_SUBTLV_AUTH_MD5 54 407146778Ssam#define ISIS_SUBTLV_AUTH_MD5_LEN 16 408146778Ssam#define ISIS_SUBTLV_AUTH_PRIVATE 255 409127675Sbms 410127675Sbmsstatic struct tok isis_subtlv_auth_values[] = { 411146778Ssam { ISIS_SUBTLV_AUTH_SIMPLE, "simple text password"}, 412236192Sdelphij { ISIS_SUBTLV_AUTH_GENERIC, "Generic Crypto key-id"}, 413146778Ssam { ISIS_SUBTLV_AUTH_MD5, "HMAC-MD5 password"}, 414146778Ssam { ISIS_SUBTLV_AUTH_PRIVATE, "Routing Domain private password"}, 415127675Sbms { 0, NULL } 416127675Sbms}; 417127675Sbms 418146778Ssam#define ISIS_SUBTLV_IDRP_RES 0 419146778Ssam#define ISIS_SUBTLV_IDRP_LOCAL 1 420146778Ssam#define ISIS_SUBTLV_IDRP_ASN 2 421127675Sbms 422127675Sbmsstatic struct tok isis_subtlv_idrp_values[] = { 423146778Ssam { ISIS_SUBTLV_IDRP_RES, "Reserved"}, 424146778Ssam { ISIS_SUBTLV_IDRP_LOCAL, "Routing-Domain Specific"}, 425146778Ssam { ISIS_SUBTLV_IDRP_ASN, "AS Number Tag"}, 426127675Sbms { 0, NULL} 427127675Sbms}; 428127675Sbms 429252283Sdelphij#define ISIS_SUBTLV_SPB_MCID 4 430252283Sdelphij#define ISIS_SUBTLV_SPB_DIGEST 5 431252283Sdelphij#define ISIS_SUBTLV_SPB_BVID 6 432252283Sdelphij 433252283Sdelphij#define ISIS_SUBTLV_SPB_INSTANCE 1 434252283Sdelphij#define ISIS_SUBTLV_SPBM_SI 3 435252283Sdelphij 436252283Sdelphij#define ISIS_SPB_MCID_LEN 51 437252283Sdelphij#define ISIS_SUBTLV_SPB_MCID_MIN_LEN 102 438252283Sdelphij#define ISIS_SUBTLV_SPB_DIGEST_MIN_LEN 33 439252283Sdelphij#define ISIS_SUBTLV_SPB_BVID_MIN_LEN 6 440252283Sdelphij#define ISIS_SUBTLV_SPB_INSTANCE_MIN_LEN 19 441252283Sdelphij#define ISIS_SUBTLV_SPB_INSTANCE_VLAN_TUPLE_LEN 8 442252283Sdelphij 443252283Sdelphijstatic struct tok isis_mt_port_cap_subtlv_values[] = { 444252283Sdelphij { ISIS_SUBTLV_SPB_MCID, "SPB MCID" }, 445252283Sdelphij { ISIS_SUBTLV_SPB_DIGEST, "SPB Digest" }, 446252283Sdelphij { ISIS_SUBTLV_SPB_BVID, "SPB BVID" }, 447252283Sdelphij { 0, NULL } 448252283Sdelphij}; 449252283Sdelphij 450252283Sdelphijstatic struct tok isis_mt_capability_subtlv_values[] = { 451252283Sdelphij { ISIS_SUBTLV_SPB_INSTANCE, "SPB Instance" }, 452252283Sdelphij { ISIS_SUBTLV_SPBM_SI, "SPBM Service Identifier and Unicast Address" }, 453252283Sdelphij { 0, NULL } 454252283Sdelphij}; 455252283Sdelphij 456252283Sdelphijstruct isis_spb_mcid { 457252283Sdelphij u_int8_t format_id; 458252283Sdelphij u_int8_t name[32]; 459252283Sdelphij u_int8_t revision_lvl[2]; 460252283Sdelphij u_int8_t digest[16]; 461252283Sdelphij}; 462252283Sdelphij 463252283Sdelphijstruct isis_subtlv_spb_mcid { 464252283Sdelphij struct isis_spb_mcid mcid; 465252283Sdelphij struct isis_spb_mcid aux_mcid; 466252283Sdelphij}; 467252283Sdelphij 468252283Sdelphijstruct isis_subtlv_spb_instance { 469252283Sdelphij u_int8_t cist_root_id[8]; 470252283Sdelphij u_int8_t cist_external_root_path_cost[4]; 471252283Sdelphij u_int8_t bridge_priority[2]; 472252283Sdelphij u_int8_t spsourceid[4]; 473252283Sdelphij u_int8_t no_of_trees; 474252283Sdelphij}; 475252283Sdelphij 476146778Ssam#define CLNP_SEGMENT_PART 0x80 477146778Ssam#define CLNP_MORE_SEGMENTS 0x40 478146778Ssam#define CLNP_REQUEST_ER 0x20 479127675Sbms 480146778Ssamstatic struct tok clnp_flag_values[] = { 481146778Ssam { CLNP_SEGMENT_PART, "Segmentation permitted"}, 482146778Ssam { CLNP_MORE_SEGMENTS, "more Segments"}, 483146778Ssam { CLNP_REQUEST_ER, "request Error Report"}, 484146778Ssam { 0, NULL} 485146778Ssam}; 486146778Ssam 48798527Sfenner#define ISIS_MASK_LSP_OL_BIT(x) ((x)&0x4) 48898527Sfenner#define ISIS_MASK_LSP_ISTYPE_BITS(x) ((x)&0x3) 48998527Sfenner#define ISIS_MASK_LSP_PARTITION_BIT(x) ((x)&0x80) 49098527Sfenner#define ISIS_MASK_LSP_ATT_BITS(x) ((x)&0x78) 49198527Sfenner#define ISIS_MASK_LSP_ATT_ERROR_BIT(x) ((x)&0x40) 49298527Sfenner#define ISIS_MASK_LSP_ATT_EXPENSE_BIT(x) ((x)&0x20) 49398527Sfenner#define ISIS_MASK_LSP_ATT_DELAY_BIT(x) ((x)&0x10) 49498527Sfenner#define ISIS_MASK_LSP_ATT_DEFAULT_BIT(x) ((x)&0x8) 49598527Sfenner 496127675Sbms#define ISIS_MASK_MTID(x) ((x)&0x0fff) 497127675Sbms#define ISIS_MASK_MTFLAGS(x) ((x)&0xf000) 49898527Sfenner 499127675Sbmsstatic struct tok isis_mt_flag_values[] = { 500236192Sdelphij { 0x4000, "ATT bit set"}, 501236192Sdelphij { 0x8000, "Overload bit set"}, 502127675Sbms { 0, NULL} 503127675Sbms}; 50498527Sfenner 505127675Sbms#define ISIS_MASK_TLV_EXTD_IP_UPDOWN(x) ((x)&0x80) 506127675Sbms#define ISIS_MASK_TLV_EXTD_IP_SUBTLV(x) ((x)&0x40) 50798527Sfenner 508127675Sbms#define ISIS_MASK_TLV_EXTD_IP6_IE(x) ((x)&0x40) 509127675Sbms#define ISIS_MASK_TLV_EXTD_IP6_SUBTLV(x) ((x)&0x20) 510127675Sbms 51198527Sfenner#define ISIS_LSP_TLV_METRIC_SUPPORTED(x) ((x)&0x80) 51298527Sfenner#define ISIS_LSP_TLV_METRIC_IE(x) ((x)&0x40) 51398527Sfenner#define ISIS_LSP_TLV_METRIC_UPDOWN(x) ((x)&0x80) 51498527Sfenner#define ISIS_LSP_TLV_METRIC_VALUE(x) ((x)&0x3f) 51598527Sfenner 516127675Sbms#define ISIS_MASK_TLV_SHARED_RISK_GROUP(x) ((x)&0x1) 517127675Sbms 518127675Sbmsstatic struct tok isis_mt_values[] = { 519127675Sbms { 0, "IPv4 unicast"}, 520127675Sbms { 1, "In-Band Management"}, 521127675Sbms { 2, "IPv6 unicast"}, 522127675Sbms { 3, "Multicast"}, 523127675Sbms { 4095, "Development, Experimental or Proprietary"}, 524127675Sbms { 0, NULL } 525127675Sbms}; 526127675Sbms 527127675Sbmsstatic struct tok isis_iih_circuit_type_values[] = { 528127675Sbms { 1, "Level 1 only"}, 529127675Sbms { 2, "Level 2 only"}, 530127675Sbms { 3, "Level 1, Level 2"}, 531127675Sbms { 0, NULL} 532127675Sbms}; 533127675Sbms 53498527Sfenner#define ISIS_LSP_TYPE_UNUSED0 0 53598527Sfenner#define ISIS_LSP_TYPE_LEVEL_1 1 53698527Sfenner#define ISIS_LSP_TYPE_UNUSED2 2 53798527Sfenner#define ISIS_LSP_TYPE_LEVEL_2 3 53898527Sfenner 53998527Sfennerstatic struct tok isis_lsp_istype_values[] = { 540127675Sbms { ISIS_LSP_TYPE_UNUSED0, "Unused 0x0 (invalid)"}, 541127675Sbms { ISIS_LSP_TYPE_LEVEL_1, "L1 IS"}, 542127675Sbms { ISIS_LSP_TYPE_UNUSED2, "Unused 0x2 (invalid)"}, 543172686Smlaier { ISIS_LSP_TYPE_LEVEL_2, "L2 IS"}, 544127675Sbms { 0, NULL } 54598527Sfenner}; 54698527Sfenner 54732149Spst/* 54832149Spst * Katz's point to point adjacency TLV uses codes to tell us the state of 54932149Spst * the remote adjacency. Enumerate them. 55032149Spst */ 55132149Spst 55232149Spst#define ISIS_PTP_ADJ_UP 0 55332149Spst#define ISIS_PTP_ADJ_INIT 1 55432149Spst#define ISIS_PTP_ADJ_DOWN 2 55532149Spst 55698527Sfennerstatic struct tok isis_ptp_adjancey_values[] = { 557127675Sbms { ISIS_PTP_ADJ_UP, "Up" }, 558127675Sbms { ISIS_PTP_ADJ_INIT, "Initializing" }, 559127675Sbms { ISIS_PTP_ADJ_DOWN, "Down" }, 560127675Sbms { 0, NULL} 56132149Spst}; 56232149Spst 56398527Sfennerstruct isis_tlv_ptp_adj { 564127675Sbms u_int8_t adjacency_state; 565127675Sbms u_int8_t extd_local_circuit_id[4]; 566127675Sbms u_int8_t neighbor_sysid[SYSTEM_ID_LEN]; 567127675Sbms u_int8_t neighbor_extd_local_circuit_id[4]; 56832149Spst}; 56932149Spst 570190207Srpaulostatic void osi_print_cksum(const u_int8_t *pptr, u_int16_t checksum, 571190207Srpaulo u_int checksum_offset, u_int length); 572146778Ssamstatic int clnp_print(const u_int8_t *, u_int); 573127675Sbmsstatic void esis_print(const u_int8_t *, u_int); 574127675Sbmsstatic int isis_print(const u_int8_t *, u_int); 575127675Sbms 576127675Sbmsstruct isis_metric_block { 577127675Sbms u_int8_t metric_default; 578127675Sbms u_int8_t metric_delay; 579127675Sbms u_int8_t metric_expense; 580127675Sbms u_int8_t metric_error; 58198527Sfenner}; 58298527Sfenner 58398527Sfennerstruct isis_tlv_is_reach { 584127675Sbms struct isis_metric_block isis_metric_block; 585127675Sbms u_int8_t neighbor_nodeid[NODE_ID_LEN]; 58698527Sfenner}; 58798527Sfenner 588127675Sbmsstruct isis_tlv_es_reach { 589127675Sbms struct isis_metric_block isis_metric_block; 590127675Sbms u_int8_t neighbor_sysid[SYSTEM_ID_LEN]; 591127675Sbms}; 59298527Sfenner 593127675Sbmsstruct isis_tlv_ip_reach { 594127675Sbms struct isis_metric_block isis_metric_block; 595127675Sbms u_int8_t prefix[4]; 596127675Sbms u_int8_t mask[4]; 597127675Sbms}; 598127675Sbms 599127675Sbmsstatic struct tok isis_is_reach_virtual_values[] = { 600127675Sbms { 0, "IsNotVirtual"}, 601127675Sbms { 1, "IsVirtual"}, 602127675Sbms { 0, NULL } 603127675Sbms}; 604127675Sbms 605127675Sbmsstatic struct tok isis_restart_flag_values[] = { 606127675Sbms { 0x1, "Restart Request"}, 607127675Sbms { 0x2, "Restart Acknowledgement"}, 608147904Ssam { 0x4, "Suppress adjacency advertisement"}, 609127675Sbms { 0, NULL } 610127675Sbms}; 611127675Sbms 61232149Spststruct isis_common_header { 613127675Sbms u_int8_t nlpid; 614127675Sbms u_int8_t fixed_len; 615127675Sbms u_int8_t version; /* Protocol version */ 616127675Sbms u_int8_t id_length; 617127675Sbms u_int8_t pdu_type; /* 3 MSbits are reserved */ 618127675Sbms u_int8_t pdu_version; /* Packet format version */ 619127675Sbms u_int8_t reserved; 620127675Sbms u_int8_t max_area; 62132149Spst}; 62232149Spst 62398527Sfennerstruct isis_iih_lan_header { 624127675Sbms u_int8_t circuit_type; 625127675Sbms u_int8_t source_id[SYSTEM_ID_LEN]; 626127675Sbms u_int8_t holding_time[2]; 627127675Sbms u_int8_t pdu_len[2]; 628127675Sbms u_int8_t priority; 629127675Sbms u_int8_t lan_id[NODE_ID_LEN]; 63032149Spst}; 63198527Sfenner 63298527Sfennerstruct isis_iih_ptp_header { 633127675Sbms u_int8_t circuit_type; 634127675Sbms u_int8_t source_id[SYSTEM_ID_LEN]; 635127675Sbms u_int8_t holding_time[2]; 636127675Sbms u_int8_t pdu_len[2]; 637127675Sbms u_int8_t circuit_id; 63832149Spst}; 63932149Spst 64098527Sfennerstruct isis_lsp_header { 641127675Sbms u_int8_t pdu_len[2]; 642127675Sbms u_int8_t remaining_lifetime[2]; 643127675Sbms u_int8_t lsp_id[LSP_ID_LEN]; 644127675Sbms u_int8_t sequence_number[4]; 645127675Sbms u_int8_t checksum[2]; 646127675Sbms u_int8_t typeblock; 64732149Spst}; 64832149Spst 64998527Sfennerstruct isis_csnp_header { 650127675Sbms u_int8_t pdu_len[2]; 651127675Sbms u_int8_t source_id[NODE_ID_LEN]; 652127675Sbms u_int8_t start_lsp_id[LSP_ID_LEN]; 653127675Sbms u_int8_t end_lsp_id[LSP_ID_LEN]; 65498527Sfenner}; 65532149Spst 65698527Sfennerstruct isis_psnp_header { 657127675Sbms u_int8_t pdu_len[2]; 658127675Sbms u_int8_t source_id[NODE_ID_LEN]; 65998527Sfenner}; 66032149Spst 66198527Sfennerstruct isis_tlv_lsp { 662127675Sbms u_int8_t remaining_lifetime[2]; 663127675Sbms u_int8_t lsp_id[LSP_ID_LEN]; 664127675Sbms u_int8_t sequence_number[4]; 665127675Sbms u_int8_t checksum[2]; 66698527Sfenner}; 667127675Sbms 66898527Sfenner#define ISIS_COMMON_HEADER_SIZE (sizeof(struct isis_common_header)) 66998527Sfenner#define ISIS_IIH_LAN_HEADER_SIZE (sizeof(struct isis_iih_lan_header)) 67098527Sfenner#define ISIS_IIH_PTP_HEADER_SIZE (sizeof(struct isis_iih_ptp_header)) 67198527Sfenner#define ISIS_LSP_HEADER_SIZE (sizeof(struct isis_lsp_header)) 67298527Sfenner#define ISIS_CSNP_HEADER_SIZE (sizeof(struct isis_csnp_header)) 67398527Sfenner#define ISIS_PSNP_HEADER_SIZE (sizeof(struct isis_psnp_header)) 67432149Spst 675127675Sbmsvoid isoclns_print(const u_int8_t *p, u_int length, u_int caplen) 67617680Spst{ 677146778Ssam if (caplen <= 1) { /* enough bytes on the wire ? */ 678146778Ssam printf("|OSI"); 679146778Ssam return; 680146778Ssam } 68117680Spst 682146778Ssam if (eflag) 683146778Ssam printf("OSI NLPID %s (0x%02x): ", 684146778Ssam tok2str(nlpid_values,"Unknown",*p), 685146778Ssam *p); 686146778Ssam 68717680Spst switch (*p) { 68817680Spst 689146778Ssam case NLPID_CLNP: 690146778Ssam if (!clnp_print(p, length)) 691146778Ssam print_unknown_data(p,"\n\t",caplen); 69217680Spst break; 69317680Spst 69417688Spst case NLPID_ESIS: 69517680Spst esis_print(p, length); 69617680Spst return; 69717680Spst 69817688Spst case NLPID_ISIS: 69917751Spst if (!isis_print(p, length)) 700127675Sbms print_unknown_data(p,"\n\t",caplen); 70117680Spst break; 70217680Spst 70317688Spst case NLPID_NULLNS: 704147904Ssam (void)printf("%slength: %u", 705147904Ssam eflag ? "" : ", ", 706147904Ssam length); 70717680Spst break; 70817680Spst 709146778Ssam case NLPID_Q933: 710146778Ssam q933_print(p+1, length-1); 711146778Ssam break; 712146778Ssam 713146778Ssam case NLPID_IP: 714146778Ssam ip_print(gndo, p+1, length-1); 715146778Ssam break; 716146778Ssam 717146778Ssam#ifdef INET6 718146778Ssam case NLPID_IP6: 719236192Sdelphij ip6_print(gndo, p+1, length-1); 720146778Ssam break; 721146778Ssam#endif 722146778Ssam 723146778Ssam case NLPID_PPP: 724146778Ssam ppp_print(p+1, length-1); 725146778Ssam break; 726146778Ssam 72717680Spst default: 728146778Ssam if (!eflag) 729146778Ssam printf("OSI NLPID 0x%02x unknown",*p); 730147904Ssam (void)printf("%slength: %u", 731147904Ssam eflag ? "" : ", ", 732147904Ssam length); 73317680Spst if (caplen > 1) 734127675Sbms print_unknown_data(p,"\n\t",caplen); 73517680Spst break; 73617680Spst } 73717680Spst} 73817680Spst 739146778Ssam#define CLNP_PDU_ER 1 740146778Ssam#define CLNP_PDU_DT 28 741146778Ssam#define CLNP_PDU_MD 29 742146778Ssam#define CLNP_PDU_ERQ 30 743146778Ssam#define CLNP_PDU_ERP 31 74417680Spst 745146778Ssamstatic struct tok clnp_pdu_values[] = { 746146778Ssam { CLNP_PDU_ER, "Error Report"}, 747146778Ssam { CLNP_PDU_MD, "MD"}, 748146778Ssam { CLNP_PDU_DT, "Data"}, 749146778Ssam { CLNP_PDU_ERQ, "Echo Request"}, 750146778Ssam { CLNP_PDU_ERP, "Echo Response"}, 751127675Sbms { 0, NULL } 752127675Sbms}; 753127675Sbms 754146778Ssamstruct clnp_header_t { 755146778Ssam u_int8_t nlpid; 756146778Ssam u_int8_t length_indicator; 757146778Ssam u_int8_t version; 758146778Ssam u_int8_t lifetime; /* units of 500ms */ 759146778Ssam u_int8_t type; 760146778Ssam u_int8_t segment_length[2]; 761146778Ssam u_int8_t cksum[2]; 762146778Ssam}; 763146778Ssam 764146778Ssamstruct clnp_segment_header_t { 765146778Ssam u_int8_t data_unit_id[2]; 766146778Ssam u_int8_t segment_offset[2]; 767146778Ssam u_int8_t total_length[2]; 768146778Ssam}; 769146778Ssam 770146778Ssam/* 771146778Ssam * clnp_print 772146778Ssam * Decode CLNP packets. Return 0 on error. 773146778Ssam */ 774146778Ssam 775146778Ssamstatic int clnp_print (const u_int8_t *pptr, u_int length) 776146778Ssam{ 777146778Ssam const u_int8_t *optr,*source_address,*dest_address; 778147904Ssam u_int li,tlen,nsap_offset,source_address_length,dest_address_length, clnp_pdu_type, clnp_flags; 779146778Ssam const struct clnp_header_t *clnp_header; 780146778Ssam const struct clnp_segment_header_t *clnp_segment_header; 781146778Ssam u_int8_t rfd_error_major,rfd_error_minor; 782146778Ssam 783146778Ssam clnp_header = (const struct clnp_header_t *) pptr; 784146778Ssam TCHECK(*clnp_header); 785146778Ssam 786146778Ssam li = clnp_header->length_indicator; 787146778Ssam optr = pptr; 788146778Ssam 789146778Ssam if (!eflag) 790146778Ssam printf("CLNP"); 791146778Ssam 792146778Ssam /* 793146778Ssam * Sanity checking of the header. 794146778Ssam */ 795146778Ssam 796146778Ssam if (clnp_header->version != CLNP_VERSION) { 797146778Ssam printf("version %d packet not supported", clnp_header->version); 798146778Ssam return (0); 799146778Ssam } 800146778Ssam 801146778Ssam /* FIXME further header sanity checking */ 802146778Ssam 803146778Ssam clnp_pdu_type = clnp_header->type & CLNP_PDU_TYPE_MASK; 804146778Ssam clnp_flags = clnp_header->type & CLNP_FLAG_MASK; 805146778Ssam 806146778Ssam pptr += sizeof(struct clnp_header_t); 807146778Ssam li -= sizeof(struct clnp_header_t); 808146778Ssam dest_address_length = *pptr; 809146778Ssam dest_address = pptr + 1; 810146778Ssam 811146778Ssam pptr += (1 + dest_address_length); 812146778Ssam li -= (1 + dest_address_length); 813146778Ssam source_address_length = *pptr; 814146778Ssam source_address = pptr +1; 815146778Ssam 816146778Ssam pptr += (1 + source_address_length); 817146778Ssam li -= (1 + source_address_length); 818146778Ssam 819146778Ssam if (vflag < 1) { 820146778Ssam printf("%s%s > %s, %s, length %u", 821146778Ssam eflag ? "" : ", ", 822146778Ssam isonsap_string(source_address, source_address_length), 823146778Ssam isonsap_string(dest_address, dest_address_length), 824146778Ssam tok2str(clnp_pdu_values,"unknown (%u)",clnp_pdu_type), 825146778Ssam length); 826146778Ssam return (1); 827146778Ssam } 828146778Ssam printf("%slength %u",eflag ? "" : ", ",length); 829146778Ssam 830190207Srpaulo printf("\n\t%s PDU, hlen: %u, v: %u, lifetime: %u.%us, Segment PDU length: %u, checksum: 0x%04x", 831146778Ssam tok2str(clnp_pdu_values, "unknown (%u)",clnp_pdu_type), 832146778Ssam clnp_header->length_indicator, 833146778Ssam clnp_header->version, 834146778Ssam clnp_header->lifetime/2, 835146778Ssam (clnp_header->lifetime%2)*5, 836146778Ssam EXTRACT_16BITS(clnp_header->segment_length), 837146778Ssam EXTRACT_16BITS(clnp_header->cksum)); 838146778Ssam 839190207Srpaulo osi_print_cksum(optr, EXTRACT_16BITS(clnp_header->cksum), 7, 840190207Srpaulo clnp_header->length_indicator); 841146778Ssam 842146778Ssam printf("\n\tFlags [%s]", 843146778Ssam bittok2str(clnp_flag_values,"none",clnp_flags)); 844146778Ssam 845146778Ssam printf("\n\tsource address (length %u): %s\n\tdest address (length %u): %s", 846146778Ssam source_address_length, 847146778Ssam isonsap_string(source_address, source_address_length), 848146778Ssam dest_address_length, 849146778Ssam isonsap_string(dest_address,dest_address_length)); 850146778Ssam 851146778Ssam if (clnp_flags & CLNP_SEGMENT_PART) { 852146778Ssam clnp_segment_header = (const struct clnp_segment_header_t *) pptr; 853162021Ssam TCHECK(*clnp_segment_header); 854146778Ssam printf("\n\tData Unit ID: 0x%04x, Segment Offset: %u, Total PDU Length: %u", 855146778Ssam EXTRACT_16BITS(clnp_segment_header->data_unit_id), 856146778Ssam EXTRACT_16BITS(clnp_segment_header->segment_offset), 857146778Ssam EXTRACT_16BITS(clnp_segment_header->total_length)); 858146778Ssam pptr+=sizeof(const struct clnp_segment_header_t); 859146778Ssam li-=sizeof(const struct clnp_segment_header_t); 860146778Ssam } 861146778Ssam 862146778Ssam /* now walk the options */ 863146778Ssam while (li >= 2) { 864146778Ssam u_int op, opli; 865146778Ssam const u_int8_t *tptr; 866146778Ssam 867147904Ssam TCHECK2(*pptr, 2); 868146778Ssam if (li < 2) { 869146778Ssam printf(", bad opts/li"); 870146778Ssam return (0); 871146778Ssam } 872146778Ssam op = *pptr++; 873146778Ssam opli = *pptr++; 874146778Ssam li -= 2; 875147904Ssam TCHECK2(*pptr, opli); 876146778Ssam if (opli > li) { 877146778Ssam printf(", opt (%d) too long", op); 878146778Ssam return (0); 879146778Ssam } 880146778Ssam li -= opli; 881146778Ssam tptr = pptr; 882147904Ssam tlen = opli; 883146778Ssam 884146778Ssam printf("\n\t %s Option #%u, length %u, value: ", 885146778Ssam tok2str(clnp_option_values,"Unknown",op), 886146778Ssam op, 887146778Ssam opli); 888146778Ssam 889146778Ssam switch (op) { 890146778Ssam 891147904Ssam 892147904Ssam case CLNP_OPTION_ROUTE_RECORDING: /* those two options share the format */ 893147904Ssam case CLNP_OPTION_SOURCE_ROUTING: 894147904Ssam printf("%s %s", 895147904Ssam tok2str(clnp_option_sr_rr_values,"Unknown",*tptr), 896147904Ssam tok2str(clnp_option_sr_rr_string_values,"Unknown Option %u",op)); 897147904Ssam nsap_offset=*(tptr+1); 898147904Ssam if (nsap_offset == 0) { 899147904Ssam printf(" Bad NSAP offset (0)"); 900147904Ssam break; 901147904Ssam } 902147904Ssam nsap_offset-=1; /* offset to nsap list */ 903147904Ssam if (nsap_offset > tlen) { 904147904Ssam printf(" Bad NSAP offset (past end of option)"); 905147904Ssam break; 906147904Ssam } 907147904Ssam tptr+=nsap_offset; 908147904Ssam tlen-=nsap_offset; 909147904Ssam while (tlen > 0) { 910147904Ssam source_address_length=*tptr; 911147904Ssam if (tlen < source_address_length+1) { 912147904Ssam printf("\n\t NSAP address goes past end of option"); 913147904Ssam break; 914162021Ssam } 915147904Ssam if (source_address_length > 0) { 916147904Ssam source_address=(tptr+1); 917147904Ssam TCHECK2(*source_address, source_address_length); 918147904Ssam printf("\n\t NSAP address (length %u): %s", 919147904Ssam source_address_length, 920147904Ssam isonsap_string(source_address, source_address_length)); 921147904Ssam } 922147904Ssam tlen-=source_address_length+1; 923147904Ssam } 924147904Ssam break; 925147904Ssam 926146778Ssam case CLNP_OPTION_PRIORITY: 927147904Ssam printf("0x%1x", *tptr&0x0f); 928147904Ssam break; 929146778Ssam 930147904Ssam case CLNP_OPTION_QOS_MAINTENANCE: 931147904Ssam printf("\n\t Format Code: %s", 932147904Ssam tok2str(clnp_option_scope_values,"Reserved",*tptr&CLNP_OPTION_SCOPE_MASK)); 933147904Ssam 934147904Ssam if ((*tptr&CLNP_OPTION_SCOPE_MASK) == CLNP_OPTION_SCOPE_GLOBAL) 935147904Ssam printf("\n\t QoS Flags [%s]", 936147904Ssam bittok2str(clnp_option_qos_global_values, 937147904Ssam "none", 938147904Ssam *tptr&CLNP_OPTION_OPTION_QOS_MASK)); 939147904Ssam break; 940147904Ssam 941147904Ssam case CLNP_OPTION_SECURITY: 942147904Ssam printf("\n\t Format Code: %s, Security-Level %u", 943147904Ssam tok2str(clnp_option_scope_values,"Reserved",*tptr&CLNP_OPTION_SCOPE_MASK), 944147904Ssam *(tptr+1)); 945147904Ssam break; 946147904Ssam 947146778Ssam case CLNP_OPTION_DISCARD_REASON: 948146778Ssam rfd_error_major = (*tptr&0xf0) >> 4; 949146778Ssam rfd_error_minor = *tptr&0x0f; 950146778Ssam printf("\n\t Class: %s Error (0x%01x), %s (0x%01x)", 951146778Ssam tok2str(clnp_option_rfd_class_values,"Unknown",rfd_error_major), 952146778Ssam rfd_error_major, 953146778Ssam tok2str(clnp_option_rfd_error_class[rfd_error_major],"Unknown",rfd_error_minor), 954146778Ssam rfd_error_minor); 955146778Ssam break; 956146778Ssam 957147904Ssam case CLNP_OPTION_PADDING: 958147904Ssam printf("padding data"); 959147904Ssam break; 960147904Ssam 961146778Ssam /* 962146778Ssam * FIXME those are the defined Options that lack a decoder 963146778Ssam * you are welcome to contribute code ;-) 964146778Ssam */ 965146778Ssam 966146778Ssam default: 967146778Ssam print_unknown_data(tptr,"\n\t ",opli); 968146778Ssam break; 969146778Ssam } 970146778Ssam if (vflag > 1) 971146778Ssam print_unknown_data(pptr,"\n\t ",opli); 972146778Ssam pptr += opli; 973146778Ssam } 974146778Ssam 975146778Ssam switch (clnp_pdu_type) { 976146778Ssam 977146778Ssam case CLNP_PDU_ER: /* fall through */ 978146778Ssam case CLNP_PDU_ERP: 979147904Ssam TCHECK(*pptr); 980146778Ssam if (*(pptr) == NLPID_CLNP) { 981146778Ssam printf("\n\t-----original packet-----\n\t"); 982146778Ssam /* FIXME recursion protection */ 983146778Ssam clnp_print(pptr, length-clnp_header->length_indicator); 984146778Ssam break; 985146778Ssam } 986146778Ssam 987146778Ssam case CLNP_PDU_DT: 988146778Ssam case CLNP_PDU_MD: 989146778Ssam case CLNP_PDU_ERQ: 990146778Ssam 991146778Ssam default: 992146778Ssam /* dump the PDU specific data */ 993146778Ssam if (length-(pptr-optr) > 0) { 994146778Ssam printf("\n\t undecoded non-header data, length %u",length-clnp_header->length_indicator); 995146778Ssam print_unknown_data(pptr,"\n\t ",length-(pptr-optr)); 996146778Ssam } 997146778Ssam } 998146778Ssam 999146778Ssam return (1); 1000146778Ssam 1001146778Ssam trunc: 1002146778Ssam fputs("[|clnp]", stdout); 1003146778Ssam return (1); 1004146778Ssam 1005146778Ssam} 1006146778Ssam 1007146778Ssam 1008146778Ssam#define ESIS_PDU_REDIRECT 6 1009146778Ssam#define ESIS_PDU_ESH 2 1010146778Ssam#define ESIS_PDU_ISH 4 1011146778Ssam 1012146778Ssamstatic struct tok esis_pdu_values[] = { 1013146778Ssam { ESIS_PDU_REDIRECT, "redirect"}, 1014146778Ssam { ESIS_PDU_ESH, "ESH"}, 1015146778Ssam { ESIS_PDU_ISH, "ISH"}, 1016146778Ssam { 0, NULL } 1017146778Ssam}; 1018146778Ssam 1019146778Ssamstruct esis_header_t { 1020146778Ssam u_int8_t nlpid; 1021146778Ssam u_int8_t length_indicator; 1022127675Sbms u_int8_t version; 1023127675Sbms u_int8_t reserved; 1024127675Sbms u_int8_t type; 1025146778Ssam u_int8_t holdtime[2]; 1026127675Sbms u_int8_t cksum[2]; 102717680Spst}; 102817680Spst 102917680Spststatic void 1030146778Ssamesis_print(const u_int8_t *pptr, u_int length) 103117680Spst{ 1032146778Ssam const u_int8_t *optr; 1033146778Ssam u_int li,esis_pdu_type,source_address_length, source_address_number; 1034146778Ssam const struct esis_header_t *esis_header; 103517680Spst 1036146778Ssam if (!eflag) 1037146778Ssam printf("ES-IS"); 1038146778Ssam 103998527Sfenner if (length <= 2) { 104017680Spst if (qflag) 1041146778Ssam printf("bad pkt!"); 104217680Spst else 1043146778Ssam printf("no header at all!"); 104417680Spst return; 104517680Spst } 1046146778Ssam 1047146778Ssam esis_header = (const struct esis_header_t *) pptr; 1048147904Ssam TCHECK(*esis_header); 1049146778Ssam li = esis_header->length_indicator; 1050146778Ssam optr = pptr; 1051146778Ssam 1052146778Ssam /* 1053146778Ssam * Sanity checking of the header. 1054146778Ssam */ 1055146778Ssam 1056146778Ssam if (esis_header->nlpid != NLPID_ESIS) { 1057146778Ssam printf(" nlpid 0x%02x packet not supported", esis_header->nlpid); 1058146778Ssam return; 1059146778Ssam } 1060146778Ssam 1061146778Ssam if (esis_header->version != ESIS_VERSION) { 1062146778Ssam printf(" version %d packet not supported", esis_header->version); 1063146778Ssam return; 1064146778Ssam } 1065146778Ssam 106617680Spst if (li > length) { 1067146778Ssam printf(" length indicator(%d) > PDU size (%d)!", li, length); 1068146778Ssam return; 106917680Spst } 1070146778Ssam 1071146778Ssam if (li < sizeof(struct esis_header_t) + 2) { 1072146778Ssam printf(" length indicator < min PDU size %d:", li); 1073146778Ssam while (--length != 0) 1074146778Ssam printf("%02X", *pptr++); 1075146778Ssam return; 107617680Spst } 107717680Spst 1078146778Ssam esis_pdu_type = esis_header->type & ESIS_PDU_TYPE_MASK; 107917680Spst 1080146778Ssam if (vflag < 1) { 1081146778Ssam printf("%s%s, length %u", 1082146778Ssam eflag ? "" : ", ", 1083146778Ssam tok2str(esis_pdu_values,"unknown type (%u)",esis_pdu_type), 1084146778Ssam length); 1085146778Ssam return; 1086146778Ssam } else 1087146778Ssam printf("%slength %u\n\t%s (%u)", 1088146778Ssam eflag ? "" : ", ", 1089146778Ssam length, 1090146778Ssam tok2str(esis_pdu_values,"unknown type: %u", esis_pdu_type), 1091146778Ssam esis_pdu_type); 109217680Spst 1093146778Ssam printf(", v: %u%s", esis_header->version, esis_header->version == ESIS_VERSION ? "" : "unsupported" ); 1094190207Srpaulo printf(", checksum: 0x%04x", EXTRACT_16BITS(esis_header->cksum)); 109517680Spst 1096190207Srpaulo osi_print_cksum(pptr, EXTRACT_16BITS(esis_header->cksum), 7, li); 1097190207Srpaulo 1098146778Ssam printf(", holding time: %us, length indicator: %u",EXTRACT_16BITS(esis_header->holdtime),li); 109917680Spst 1100146778Ssam if (vflag > 1) 1101146778Ssam print_unknown_data(optr,"\n\t",sizeof(struct esis_header_t)); 1102146778Ssam 1103146778Ssam pptr += sizeof(struct esis_header_t); 1104146778Ssam li -= sizeof(struct esis_header_t); 1105146778Ssam 1106146778Ssam switch (esis_pdu_type) { 1107146778Ssam case ESIS_PDU_REDIRECT: { 1108147904Ssam const u_int8_t *dst, *snpa, *neta; 1109147904Ssam u_int dstl, snpal, netal; 1110146778Ssam 1111147904Ssam TCHECK(*pptr); 1112147904Ssam if (li < 1) { 1113147904Ssam printf(", bad redirect/li"); 111417680Spst return; 1115147904Ssam } 1116147904Ssam dstl = *pptr; 1117147904Ssam pptr++; 1118147904Ssam li--; 1119147904Ssam TCHECK2(*pptr, dstl); 1120147904Ssam if (li < dstl) { 1121147904Ssam printf(", bad redirect/li"); 112217680Spst return; 1123147904Ssam } 1124147904Ssam dst = pptr; 1125147904Ssam pptr += dstl; 1126147904Ssam li -= dstl; 1127147904Ssam printf("\n\t %s", isonsap_string(dst,dstl)); 1128146778Ssam 1129147904Ssam TCHECK(*pptr); 1130147904Ssam if (li < 1) { 1131147904Ssam printf(", bad redirect/li"); 1132147904Ssam return; 1133147904Ssam } 1134147904Ssam snpal = *pptr; 1135147904Ssam pptr++; 1136147904Ssam li--; 1137147904Ssam TCHECK2(*pptr, snpal); 1138147904Ssam if (li < snpal) { 1139147904Ssam printf(", bad redirect/li"); 1140147904Ssam return; 1141147904Ssam } 1142147904Ssam snpa = pptr; 1143147904Ssam pptr += snpal; 1144147904Ssam li -= snpal; 1145147904Ssam TCHECK(*pptr); 1146147904Ssam if (li < 1) { 1147147904Ssam printf(", bad redirect/li"); 1148147904Ssam return; 1149147904Ssam } 1150147904Ssam netal = *pptr; 1151147904Ssam pptr++; 1152147904Ssam TCHECK2(*pptr, netal); 1153147904Ssam if (li < netal) { 1154147904Ssam printf(", bad redirect/li"); 1155147904Ssam return; 1156147904Ssam } 1157147904Ssam neta = pptr; 1158147904Ssam pptr += netal; 1159147904Ssam li -= netal; 1160147904Ssam 1161147904Ssam if (netal == 0) 1162147904Ssam printf("\n\t %s", etheraddr_string(snpa)); 116317680Spst else 1164147904Ssam printf("\n\t %s", isonsap_string(neta,netal)); 116517680Spst break; 116617680Spst } 1167127675Sbms 1168146778Ssam case ESIS_PDU_ESH: 1169147904Ssam TCHECK(*pptr); 1170147904Ssam if (li < 1) { 1171147904Ssam printf(", bad esh/li"); 1172147904Ssam return; 1173147904Ssam } 1174146778Ssam source_address_number = *pptr; 1175146778Ssam pptr++; 1176146778Ssam li--; 1177127675Sbms 1178146778Ssam printf("\n\t Number of Source Addresses: %u", source_address_number); 1179146778Ssam 1180146778Ssam while (source_address_number > 0) { 1181147904Ssam TCHECK(*pptr); 1182147904Ssam if (li < 1) { 1183147904Ssam printf(", bad esh/li"); 1184147904Ssam return; 1185147904Ssam } 1186146778Ssam source_address_length = *pptr; 1187147904Ssam pptr++; 1188147904Ssam li--; 1189147904Ssam 1190147904Ssam TCHECK2(*pptr, source_address_length); 1191147904Ssam if (li < source_address_length) { 1192147904Ssam printf(", bad esh/li"); 1193147904Ssam return; 1194147904Ssam } 1195146778Ssam printf("\n\t NET (length: %u): %s", 1196146778Ssam source_address_length, 1197147904Ssam isonsap_string(pptr,source_address_length)); 1198147904Ssam pptr += source_address_length; 1199147904Ssam li -= source_address_length; 1200146778Ssam source_address_number--; 1201146778Ssam } 1202146778Ssam 1203146778Ssam break; 1204146778Ssam 1205146778Ssam case ESIS_PDU_ISH: { 1206147904Ssam TCHECK(*pptr); 1207147904Ssam if (li < 1) { 1208147904Ssam printf(", bad ish/li"); 1209147904Ssam return; 1210147904Ssam } 1211146778Ssam source_address_length = *pptr; 1212147904Ssam pptr++; 1213147904Ssam li--; 1214147904Ssam TCHECK2(*pptr, source_address_length); 1215147904Ssam if (li < source_address_length) { 1216147904Ssam printf(", bad ish/li"); 1217147904Ssam return; 1218147904Ssam } 1219147904Ssam printf("\n\t NET (length: %u): %s", source_address_length, isonsap_string(pptr, source_address_length)); 1220147904Ssam pptr += source_address_length; 1221147904Ssam li -= source_address_length; 1222146778Ssam break; 122317680Spst } 122417680Spst 122517680Spst default: 1226127675Sbms if (vflag <= 1) { 1227146778Ssam if (pptr < snapend) 1228146778Ssam print_unknown_data(pptr,"\n\t ",snapend-pptr); 1229127675Sbms } 1230127675Sbms return; 123117680Spst } 1232127675Sbms 1233146778Ssam /* now walk the options */ 1234236192Sdelphij while (li != 0) { 1235146778Ssam u_int op, opli; 1236146778Ssam const u_int8_t *tptr; 1237146778Ssam 1238146778Ssam if (li < 2) { 1239146778Ssam printf(", bad opts/li"); 1240146778Ssam return; 1241146778Ssam } 1242236192Sdelphij TCHECK2(*pptr, 2); 1243146778Ssam op = *pptr++; 1244146778Ssam opli = *pptr++; 1245146778Ssam li -= 2; 1246146778Ssam if (opli > li) { 1247146778Ssam printf(", opt (%d) too long", op); 1248146778Ssam return; 1249146778Ssam } 1250146778Ssam li -= opli; 1251146778Ssam tptr = pptr; 1252146778Ssam 1253146778Ssam printf("\n\t %s Option #%u, length %u, value: ", 1254146778Ssam tok2str(esis_option_values,"Unknown",op), 1255146778Ssam op, 1256146778Ssam opli); 125717680Spst 1258146778Ssam switch (op) { 1259127675Sbms 1260146778Ssam case ESIS_OPTION_ES_CONF_TIME: 1261236192Sdelphij if (opli == 2) { 1262236192Sdelphij TCHECK2(*pptr, 2); 1263236192Sdelphij printf("%us", EXTRACT_16BITS(tptr)); 1264236192Sdelphij } else 1265236192Sdelphij printf("(bad length)"); 1266146778Ssam break; 1267127675Sbms 1268146778Ssam case ESIS_OPTION_PROTOCOLS: 1269146778Ssam while (opli>0) { 1270147904Ssam TCHECK(*pptr); 1271146778Ssam printf("%s (0x%02x)", 1272146778Ssam tok2str(nlpid_values, 1273146778Ssam "unknown", 1274146778Ssam *tptr), 1275146778Ssam *tptr); 1276146778Ssam if (opli>1) /* further NPLIDs ? - put comma */ 1277146778Ssam printf(", "); 1278146778Ssam tptr++; 1279146778Ssam opli--; 1280146778Ssam } 1281146778Ssam break; 1282127675Sbms 1283146778Ssam /* 1284146778Ssam * FIXME those are the defined Options that lack a decoder 1285146778Ssam * you are welcome to contribute code ;-) 1286146778Ssam */ 1287127675Sbms 1288146778Ssam case ESIS_OPTION_QOS_MAINTENANCE: 1289146778Ssam case ESIS_OPTION_SECURITY: 1290146778Ssam case ESIS_OPTION_PRIORITY: 1291146778Ssam case ESIS_OPTION_ADDRESS_MASK: 1292146778Ssam case ESIS_OPTION_SNPA_MASK: 129317680Spst 1294146778Ssam default: 1295146778Ssam print_unknown_data(tptr,"\n\t ",opli); 1296146778Ssam break; 1297146778Ssam } 1298146778Ssam if (vflag > 1) 1299146778Ssam print_unknown_data(pptr,"\n\t ",opli); 1300146778Ssam pptr += opli; 1301146778Ssam } 1302147904Ssamtrunc: 1303147904Ssam return; 1304146778Ssam} 1305146778Ssam 1306252283Sdelphij 1307252283Sdelphijstatic void 1308252283Sdelphijisis_print_mcid (const struct isis_spb_mcid *mcid) 1309252283Sdelphij{ 1310252283Sdelphij int i; 1311252283Sdelphij 1312252283Sdelphij printf( "ID: %d, Name: ", mcid->format_id); 1313252283Sdelphij 1314252283Sdelphij for(i=0; i<32; i++) 1315252283Sdelphij { 1316252283Sdelphij printf("%c", mcid->name[i]); 1317252283Sdelphij if(mcid->name[i] == '\0') 1318252283Sdelphij break; 1319252283Sdelphij } 1320252283Sdelphij 1321252283Sdelphij printf("\n\t Lvl: %d", 1322252283Sdelphij EXTRACT_16BITS(mcid->revision_lvl)); 1323252283Sdelphij 1324252283Sdelphij printf( ", Digest: "); 1325252283Sdelphij 1326252283Sdelphij for(i=0;i<16;i++) 1327252283Sdelphij printf("%.2x ",mcid->digest[i]); 1328252283Sdelphij} 1329252283Sdelphij 1330252283Sdelphijstatic int 1331252283Sdelphijisis_print_mt_port_cap_subtlv (const u_int8_t *tptr, int len) 1332252283Sdelphij{ 1333252283Sdelphij int stlv_type, stlv_len; 1334252283Sdelphij const struct isis_subtlv_spb_mcid *subtlv_spb_mcid; 1335252283Sdelphij int i; 1336252283Sdelphij 1337252283Sdelphij while (len > 0) 1338252283Sdelphij { 1339252283Sdelphij stlv_type = *(tptr++); 1340252283Sdelphij stlv_len = *(tptr++); 1341252283Sdelphij 1342252283Sdelphij /* first lets see if we know the subTLVs name*/ 1343252283Sdelphij printf("\n\t %s subTLV #%u, length: %u", 1344252283Sdelphij tok2str(isis_mt_port_cap_subtlv_values, "unknown", stlv_type), 1345252283Sdelphij stlv_type, 1346252283Sdelphij stlv_len); 1347252283Sdelphij 1348252283Sdelphij /*len -= TLV_TYPE_LEN_OFFSET;*/ 1349252283Sdelphij len = len -2; 1350252283Sdelphij 1351252283Sdelphij switch (stlv_type) 1352252283Sdelphij { 1353252283Sdelphij case ISIS_SUBTLV_SPB_MCID: 1354252283Sdelphij { 1355252283Sdelphij if (!TTEST2(*(tptr), ISIS_SUBTLV_SPB_MCID_MIN_LEN)) 1356252283Sdelphij goto trunctlv; 1357252283Sdelphij 1358252283Sdelphij subtlv_spb_mcid = (struct isis_subtlv_spb_mcid *)tptr; 1359252283Sdelphij 1360252283Sdelphij printf( "\n\t MCID: "); 1361252283Sdelphij isis_print_mcid (&(subtlv_spb_mcid->mcid)); 1362252283Sdelphij 1363252283Sdelphij /*tptr += SPB_MCID_MIN_LEN; 1364252283Sdelphij len -= SPB_MCID_MIN_LEN; */ 1365252283Sdelphij 1366252283Sdelphij printf( "\n\t AUX-MCID: "); 1367252283Sdelphij isis_print_mcid (&(subtlv_spb_mcid->aux_mcid)); 1368252283Sdelphij 1369252283Sdelphij /*tptr += SPB_MCID_MIN_LEN; 1370252283Sdelphij len -= SPB_MCID_MIN_LEN; */ 1371252283Sdelphij tptr = tptr + sizeof(struct isis_subtlv_spb_mcid); 1372252283Sdelphij len = len - sizeof(struct isis_subtlv_spb_mcid); 1373252283Sdelphij 1374252283Sdelphij break; 1375252283Sdelphij } 1376252283Sdelphij 1377252283Sdelphij case ISIS_SUBTLV_SPB_DIGEST: 1378252283Sdelphij { 1379252283Sdelphij if (!TTEST2(*(tptr), ISIS_SUBTLV_SPB_DIGEST_MIN_LEN)) 1380252283Sdelphij goto trunctlv; 1381252283Sdelphij 1382252283Sdelphij printf ("\n\t RES: %d V: %d A: %d D: %d", 1383252283Sdelphij (*(tptr) >> 5), (((*tptr)>> 4) & 0x01), 1384252283Sdelphij ((*(tptr) >> 2) & 0x03), ((*tptr) & 0x03)); 1385252283Sdelphij 1386252283Sdelphij tptr++; 1387252283Sdelphij 1388252283Sdelphij printf( "\n\t Digest: "); 1389252283Sdelphij 1390252283Sdelphij for(i=1;i<=8; i++) 1391252283Sdelphij { 1392252283Sdelphij printf("%08x ", EXTRACT_32BITS(tptr)); 1393252283Sdelphij if (i%4 == 0 && i != 8) 1394252283Sdelphij printf("\n\t "); 1395252283Sdelphij tptr = tptr + 4; 1396252283Sdelphij } 1397252283Sdelphij 1398252283Sdelphij len = len - ISIS_SUBTLV_SPB_DIGEST_MIN_LEN; 1399252283Sdelphij 1400252283Sdelphij break; 1401252283Sdelphij } 1402252283Sdelphij 1403252283Sdelphij case ISIS_SUBTLV_SPB_BVID: 1404252283Sdelphij { 1405252283Sdelphij if (!TTEST2(*(tptr), stlv_len)) 1406252283Sdelphij goto trunctlv; 1407252283Sdelphij 1408252283Sdelphij while (len) 1409252283Sdelphij { 1410252283Sdelphij if (!TTEST2(*(tptr), ISIS_SUBTLV_SPB_BVID_MIN_LEN)) 1411252283Sdelphij goto trunctlv; 1412252283Sdelphij 1413252283Sdelphij printf("\n\t ECT: %08x", 1414252283Sdelphij EXTRACT_32BITS(tptr)); 1415252283Sdelphij 1416252283Sdelphij tptr = tptr+4; 1417252283Sdelphij 1418252283Sdelphij printf(" BVID: %d, U:%01x M:%01x ", 1419252283Sdelphij (EXTRACT_16BITS (tptr) >> 4) , 1420252283Sdelphij (EXTRACT_16BITS (tptr) >> 3) & 0x01, 1421252283Sdelphij (EXTRACT_16BITS (tptr) >> 2) & 0x01); 1422252283Sdelphij 1423252283Sdelphij tptr = tptr + 2; 1424252283Sdelphij len = len - ISIS_SUBTLV_SPB_BVID_MIN_LEN; 1425252283Sdelphij } 1426252283Sdelphij 1427252283Sdelphij break; 1428252283Sdelphij } 1429252283Sdelphij 1430252283Sdelphij default: 1431252283Sdelphij break; 1432252283Sdelphij } 1433252283Sdelphij } 1434252283Sdelphij 1435252283Sdelphij return 0; 1436252283Sdelphij 1437252283Sdelphij trunctlv: 1438252283Sdelphij printf("\n\t\t packet exceeded snapshot"); 1439252283Sdelphij return(1); 1440252283Sdelphij} 1441252283Sdelphij 1442252283Sdelphijstatic int 1443252283Sdelphijisis_print_mt_capability_subtlv (const u_int8_t *tptr, int len) 1444252283Sdelphij{ 1445252283Sdelphij int stlv_type, stlv_len, tmp; 1446252283Sdelphij 1447252283Sdelphij while (len > 0) 1448252283Sdelphij { 1449252283Sdelphij stlv_type = *(tptr++); 1450252283Sdelphij stlv_len = *(tptr++); 1451252283Sdelphij 1452252283Sdelphij /* first lets see if we know the subTLVs name*/ 1453252283Sdelphij printf("\n\t %s subTLV #%u, length: %u", 1454252283Sdelphij tok2str(isis_mt_capability_subtlv_values, "unknown", stlv_type), 1455252283Sdelphij stlv_type, 1456252283Sdelphij stlv_len); 1457252283Sdelphij 1458252283Sdelphij len = len - 2; 1459252283Sdelphij 1460252283Sdelphij switch (stlv_type) 1461252283Sdelphij { 1462252283Sdelphij case ISIS_SUBTLV_SPB_INSTANCE: 1463252283Sdelphij 1464252283Sdelphij if (!TTEST2(*(tptr), ISIS_SUBTLV_SPB_INSTANCE_MIN_LEN)) 1465252283Sdelphij goto trunctlv; 1466252283Sdelphij 1467252283Sdelphij printf("\n\t CIST Root-ID: %08x", EXTRACT_32BITS(tptr)); 1468252283Sdelphij tptr = tptr+4; 1469252283Sdelphij printf(" %08x", EXTRACT_32BITS(tptr)); 1470252283Sdelphij tptr = tptr+4; 1471252283Sdelphij printf(", Path Cost: %08x", EXTRACT_32BITS(tptr)); 1472252283Sdelphij tptr = tptr+4; 1473252283Sdelphij printf(", Prio: %d", EXTRACT_16BITS(tptr)); 1474252283Sdelphij tptr = tptr + 2; 1475252283Sdelphij printf("\n\t RES: %d", 1476252283Sdelphij EXTRACT_16BITS(tptr) >> 5); 1477252283Sdelphij printf(", V: %d", 1478252283Sdelphij (EXTRACT_16BITS(tptr) >> 4) & 0x0001); 1479252283Sdelphij printf(", SPSource-ID: %d", 1480252283Sdelphij (EXTRACT_32BITS(tptr) & 0x000fffff)); 1481252283Sdelphij tptr = tptr+4; 1482252283Sdelphij printf(", No of Trees: %x", *(tptr)); 1483252283Sdelphij 1484252283Sdelphij tmp = *(tptr++); 1485252283Sdelphij 1486252283Sdelphij len = len - ISIS_SUBTLV_SPB_INSTANCE_MIN_LEN; 1487252283Sdelphij 1488252283Sdelphij while (tmp) 1489252283Sdelphij { 1490252283Sdelphij if (!TTEST2(*(tptr), ISIS_SUBTLV_SPB_INSTANCE_VLAN_TUPLE_LEN)) 1491252283Sdelphij goto trunctlv; 1492252283Sdelphij 1493252283Sdelphij printf ("\n\t U:%d, M:%d, A:%d, RES:%d", 1494252283Sdelphij *(tptr) >> 7, (*(tptr) >> 6) & 0x01, 1495252283Sdelphij (*(tptr) >> 5) & 0x01, (*(tptr) & 0x1f)); 1496252283Sdelphij 1497252283Sdelphij tptr++; 1498252283Sdelphij 1499252283Sdelphij printf (", ECT: %08x", EXTRACT_32BITS(tptr)); 1500252283Sdelphij 1501252283Sdelphij tptr = tptr + 4; 1502252283Sdelphij 1503252283Sdelphij printf (", BVID: %d, SPVID: %d", 1504252283Sdelphij (EXTRACT_24BITS(tptr) >> 12) & 0x000fff, 1505252283Sdelphij EXTRACT_24BITS(tptr) & 0x000fff); 1506252283Sdelphij 1507252283Sdelphij tptr = tptr + 3; 1508252283Sdelphij len = len - ISIS_SUBTLV_SPB_INSTANCE_VLAN_TUPLE_LEN; 1509252283Sdelphij tmp--; 1510252283Sdelphij } 1511252283Sdelphij 1512252283Sdelphij break; 1513252283Sdelphij 1514252283Sdelphij case ISIS_SUBTLV_SPBM_SI: 1515252283Sdelphij 1516252283Sdelphij if (!TTEST2(*(tptr), 6)) 1517252283Sdelphij goto trunctlv; 1518252283Sdelphij 1519252283Sdelphij printf("\n\t BMAC: %08x", EXTRACT_32BITS(tptr)); 1520252283Sdelphij tptr = tptr+4; 1521252283Sdelphij printf("%04x", EXTRACT_16BITS(tptr)); 1522252283Sdelphij tptr = tptr+2; 1523252283Sdelphij 1524252283Sdelphij printf (", RES: %d, VID: %d", EXTRACT_16BITS(tptr) >> 12, 1525252283Sdelphij (EXTRACT_16BITS(tptr)) & 0x0fff); 1526252283Sdelphij 1527252283Sdelphij tptr = tptr+2; 1528252283Sdelphij len = len - 8; 1529252283Sdelphij stlv_len = stlv_len - 8; 1530252283Sdelphij 1531252283Sdelphij while (stlv_len) 1532252283Sdelphij { 1533252283Sdelphij printf("\n\t T: %d, R: %d, RES: %d, ISID: %d", 1534252283Sdelphij (EXTRACT_32BITS(tptr) >> 31), 1535252283Sdelphij (EXTRACT_32BITS(tptr) >> 30) & 0x01, 1536252283Sdelphij (EXTRACT_32BITS(tptr) >> 24) & 0x03f, 1537252283Sdelphij (EXTRACT_32BITS(tptr)) & 0x0ffffff); 1538252283Sdelphij 1539252283Sdelphij tptr = tptr + 4; 1540252283Sdelphij len = len - 4; 1541252283Sdelphij stlv_len = stlv_len - 4; 1542252283Sdelphij } 1543252283Sdelphij 1544252283Sdelphij break; 1545252283Sdelphij 1546252283Sdelphij default: 1547252283Sdelphij break; 1548252283Sdelphij } 1549252283Sdelphij } 1550252283Sdelphij return 0; 1551252283Sdelphij 1552252283Sdelphij trunctlv: 1553252283Sdelphij printf("\n\t\t packet exceeded snapshot"); 1554252283Sdelphij return(1); 1555252283Sdelphij} 1556252283Sdelphij 1557252283Sdelphij 1558127675Sbms/* shared routine for printing system, node and lsp-ids */ 1559127675Sbmsstatic char * 1560127675Sbmsisis_print_id(const u_int8_t *cp, int id_len) 156198527Sfenner{ 1562127675Sbms int i; 1563127675Sbms static char id[sizeof("xxxx.xxxx.xxxx.yy-zz")]; 1564127675Sbms char *pos = id; 156517688Spst 1566127675Sbms for (i = 1; i <= SYSTEM_ID_LEN; i++) { 1567127675Sbms snprintf(pos, sizeof(id) - (pos - id), "%02x", *cp++); 1568127675Sbms pos += strlen(pos); 1569127675Sbms if (i == 2 || i == 4) 1570127675Sbms *pos++ = '.'; 157198527Sfenner } 1572127675Sbms if (id_len >= NODE_ID_LEN) { 1573127675Sbms snprintf(pos, sizeof(id) - (pos - id), ".%02x", *cp++); 1574127675Sbms pos += strlen(pos); 1575127675Sbms } 1576127675Sbms if (id_len == LSP_ID_LEN) 1577127675Sbms snprintf(pos, sizeof(id) - (pos - id), "-%02x", *cp); 1578127675Sbms return (id); 157998527Sfenner} 158098527Sfenner 1581127675Sbms/* print the 4-byte metric block which is common found in the old-style TLVs */ 158298527Sfennerstatic int 1583127675Sbmsisis_print_metric_block (const struct isis_metric_block *isis_metric_block) 158498527Sfenner{ 1585127675Sbms printf(", Default Metric: %d, %s", 1586127675Sbms ISIS_LSP_TLV_METRIC_VALUE(isis_metric_block->metric_default), 1587127675Sbms ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_default) ? "External" : "Internal"); 1588127675Sbms if (!ISIS_LSP_TLV_METRIC_SUPPORTED(isis_metric_block->metric_delay)) 1589127675Sbms printf("\n\t\t Delay Metric: %d, %s", 1590127675Sbms ISIS_LSP_TLV_METRIC_VALUE(isis_metric_block->metric_delay), 1591127675Sbms ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_delay) ? "External" : "Internal"); 1592127675Sbms if (!ISIS_LSP_TLV_METRIC_SUPPORTED(isis_metric_block->metric_expense)) 1593127675Sbms printf("\n\t\t Expense Metric: %d, %s", 1594127675Sbms ISIS_LSP_TLV_METRIC_VALUE(isis_metric_block->metric_expense), 1595127675Sbms ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_expense) ? "External" : "Internal"); 1596127675Sbms if (!ISIS_LSP_TLV_METRIC_SUPPORTED(isis_metric_block->metric_error)) 1597127675Sbms printf("\n\t\t Error Metric: %d, %s", 1598127675Sbms ISIS_LSP_TLV_METRIC_VALUE(isis_metric_block->metric_error), 1599127675Sbms ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_error) ? "External" : "Internal"); 160098527Sfenner 1601127675Sbms return(1); /* everything is ok */ 160298527Sfenner} 160398527Sfenner 160498527Sfennerstatic int 1605127675Sbmsisis_print_tlv_ip_reach (const u_int8_t *cp, const char *ident, int length) 160698527Sfenner{ 1607127675Sbms int prefix_len; 1608127675Sbms const struct isis_tlv_ip_reach *tlv_ip_reach; 160998527Sfenner 1610127675Sbms tlv_ip_reach = (const struct isis_tlv_ip_reach *)cp; 1611127675Sbms 1612127675Sbms while (length > 0) { 1613127675Sbms if ((size_t)length < sizeof(*tlv_ip_reach)) { 1614127675Sbms printf("short IPv4 Reachability (%d vs %lu)", 1615127675Sbms length, 1616127675Sbms (unsigned long)sizeof(*tlv_ip_reach)); 161798527Sfenner return (0); 161898527Sfenner } 1619127675Sbms 1620127675Sbms if (!TTEST(*tlv_ip_reach)) 1621127675Sbms return (0); 1622127675Sbms 1623127675Sbms prefix_len = mask2plen(EXTRACT_32BITS(tlv_ip_reach->mask)); 1624127675Sbms 1625127675Sbms if (prefix_len == -1) 1626127675Sbms printf("%sIPv4 prefix: %s mask %s", 1627127675Sbms ident, 1628127675Sbms ipaddr_string((tlv_ip_reach->prefix)), 1629127675Sbms ipaddr_string((tlv_ip_reach->mask))); 1630127675Sbms else 1631127675Sbms printf("%sIPv4 prefix: %15s/%u", 1632127675Sbms ident, 1633127675Sbms ipaddr_string((tlv_ip_reach->prefix)), 1634127675Sbms prefix_len); 1635127675Sbms 1636127675Sbms printf(", Distribution: %s, Metric: %u, %s", 1637127675Sbms ISIS_LSP_TLV_METRIC_UPDOWN(tlv_ip_reach->isis_metric_block.metric_default) ? "down" : "up", 1638127675Sbms ISIS_LSP_TLV_METRIC_VALUE(tlv_ip_reach->isis_metric_block.metric_default), 1639127675Sbms ISIS_LSP_TLV_METRIC_IE(tlv_ip_reach->isis_metric_block.metric_default) ? "External" : "Internal"); 1640127675Sbms 1641127675Sbms if (!ISIS_LSP_TLV_METRIC_SUPPORTED(tlv_ip_reach->isis_metric_block.metric_delay)) 1642127675Sbms printf("%s Delay Metric: %u, %s", 1643127675Sbms ident, 1644127675Sbms ISIS_LSP_TLV_METRIC_VALUE(tlv_ip_reach->isis_metric_block.metric_delay), 1645127675Sbms ISIS_LSP_TLV_METRIC_IE(tlv_ip_reach->isis_metric_block.metric_delay) ? "External" : "Internal"); 1646127675Sbms 1647127675Sbms if (!ISIS_LSP_TLV_METRIC_SUPPORTED(tlv_ip_reach->isis_metric_block.metric_expense)) 1648127675Sbms printf("%s Expense Metric: %u, %s", 1649127675Sbms ident, 1650127675Sbms ISIS_LSP_TLV_METRIC_VALUE(tlv_ip_reach->isis_metric_block.metric_expense), 1651127675Sbms ISIS_LSP_TLV_METRIC_IE(tlv_ip_reach->isis_metric_block.metric_expense) ? "External" : "Internal"); 1652127675Sbms 1653127675Sbms if (!ISIS_LSP_TLV_METRIC_SUPPORTED(tlv_ip_reach->isis_metric_block.metric_error)) 1654127675Sbms printf("%s Error Metric: %u, %s", 1655127675Sbms ident, 1656127675Sbms ISIS_LSP_TLV_METRIC_VALUE(tlv_ip_reach->isis_metric_block.metric_error), 1657127675Sbms ISIS_LSP_TLV_METRIC_IE(tlv_ip_reach->isis_metric_block.metric_error) ? "External" : "Internal"); 1658127675Sbms 1659127675Sbms length -= sizeof(struct isis_tlv_ip_reach); 1660127675Sbms tlv_ip_reach++; 166198527Sfenner } 166298527Sfenner return (1); 166398527Sfenner} 166498527Sfenner 1665127675Sbms/* 1666127675Sbms * this is the common IP-REACH subTLV decoder it is called 1667127675Sbms * from various EXTD-IP REACH TLVs (135,235,236,237) 1668127675Sbms */ 166998527Sfenner 1670127675Sbmsstatic int 1671127675Sbmsisis_print_ip_reach_subtlv (const u_int8_t *tptr,int subt,int subl,const char *ident) { 1672127675Sbms 1673127675Sbms /* first lets see if we know the subTLVs name*/ 1674127675Sbms printf("%s%s subTLV #%u, length: %u", 1675127675Sbms ident, 1676127675Sbms tok2str(isis_ext_ip_reach_subtlv_values, 1677127675Sbms "unknown", 1678127675Sbms subt), 1679127675Sbms subt, 1680127675Sbms subl); 1681127675Sbms 1682127675Sbms if (!TTEST2(*tptr,subl)) 1683127675Sbms goto trunctlv; 1684127675Sbms 1685127675Sbms switch(subt) { 1686146778Ssam case ISIS_SUBTLV_EXTD_IP_REACH_MGMT_PREFIX_COLOR: /* fall through */ 1687146778Ssam case ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG32: 1688127675Sbms while (subl >= 4) { 1689127675Sbms printf(", 0x%08x (=%u)", 1690127675Sbms EXTRACT_32BITS(tptr), 1691127675Sbms EXTRACT_32BITS(tptr)); 1692127675Sbms tptr+=4; 1693127675Sbms subl-=4; 169417688Spst } 1695127675Sbms break; 1696146778Ssam case ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG64: 1697127675Sbms while (subl >= 8) { 1698127675Sbms printf(", 0x%08x%08x", 1699127675Sbms EXTRACT_32BITS(tptr), 1700127675Sbms EXTRACT_32BITS(tptr+4)); 1701127675Sbms tptr+=8; 1702127675Sbms subl-=8; 1703127675Sbms } 1704127675Sbms break; 1705127675Sbms default: 1706127675Sbms if(!print_unknown_data(tptr,"\n\t\t ", 1707127675Sbms subl)) 1708127675Sbms return(0); 1709127675Sbms break; 1710127675Sbms } 1711127675Sbms return(1); 1712127675Sbms 1713127675Sbmstrunctlv: 1714127675Sbms printf("%spacket exceeded snapshot",ident); 1715127675Sbms return(0); 171698527Sfenner} 171717688Spst 1718127675Sbms/* 1719127675Sbms * this is the common IS-REACH subTLV decoder it is called 1720127675Sbms * from isis_print_ext_is_reach() 1721127675Sbms */ 1722127675Sbms 172398527Sfennerstatic int 1724162021Ssamisis_print_is_reach_subtlv (const u_int8_t *tptr,u_int subt,u_int subl,const char *ident) { 172598527Sfenner 1726190207Srpaulo u_int te_class,priority_level,gmpls_switch_cap; 1727127675Sbms union { /* int to float conversion buffer for several subTLVs */ 1728127675Sbms float f; 1729127675Sbms u_int32_t i; 1730127675Sbms } bw; 173198527Sfenner 1732127675Sbms /* first lets see if we know the subTLVs name*/ 1733127675Sbms printf("%s%s subTLV #%u, length: %u", 1734127675Sbms ident, 1735127675Sbms tok2str(isis_ext_is_reach_subtlv_values, 1736127675Sbms "unknown", 1737127675Sbms subt), 1738127675Sbms subt, 1739127675Sbms subl); 174098527Sfenner 1741127675Sbms if (!TTEST2(*tptr,subl)) 1742127675Sbms goto trunctlv; 174398527Sfenner 1744127675Sbms switch(subt) { 1745146778Ssam case ISIS_SUBTLV_EXT_IS_REACH_ADMIN_GROUP: 1746146778Ssam case ISIS_SUBTLV_EXT_IS_REACH_LINK_LOCAL_REMOTE_ID: 1747146778Ssam case ISIS_SUBTLV_EXT_IS_REACH_LINK_REMOTE_ID: 1748127675Sbms if (subl >= 4) { 1749127675Sbms printf(", 0x%08x", EXTRACT_32BITS(tptr)); 1750190207Srpaulo if (subl == 8) /* rfc4205 */ 1751127675Sbms printf(", 0x%08x", EXTRACT_32BITS(tptr+4)); 1752127675Sbms } 1753127675Sbms break; 1754146778Ssam case ISIS_SUBTLV_EXT_IS_REACH_IPV4_INTF_ADDR: 1755146778Ssam case ISIS_SUBTLV_EXT_IS_REACH_IPV4_NEIGHBOR_ADDR: 1756162021Ssam if (subl >= sizeof(struct in_addr)) 1757127675Sbms printf(", %s", ipaddr_string(tptr)); 1758127675Sbms break; 1759146778Ssam case ISIS_SUBTLV_EXT_IS_REACH_MAX_LINK_BW : 1760146778Ssam case ISIS_SUBTLV_EXT_IS_REACH_RESERVABLE_BW: 1761127675Sbms if (subl >= 4) { 1762127675Sbms bw.i = EXTRACT_32BITS(tptr); 1763127675Sbms printf(", %.3f Mbps", bw.f*8/1000000 ); 1764127675Sbms } 1765127675Sbms break; 1766146778Ssam case ISIS_SUBTLV_EXT_IS_REACH_UNRESERVED_BW : 1767127675Sbms if (subl >= 32) { 1768162021Ssam for (te_class = 0; te_class < 8; te_class++) { 1769127675Sbms bw.i = EXTRACT_32BITS(tptr); 1770162021Ssam printf("%s TE-Class %u: %.3f Mbps", 1771127675Sbms ident, 1772162021Ssam te_class, 1773127675Sbms bw.f*8/1000000 ); 1774127675Sbms tptr+=4; 1775127675Sbms } 1776127675Sbms } 1777127675Sbms break; 1778162021Ssam case ISIS_SUBTLV_EXT_IS_REACH_BW_CONSTRAINTS: /* fall through */ 1779162021Ssam case ISIS_SUBTLV_EXT_IS_REACH_BW_CONSTRAINTS_OLD: 1780146778Ssam printf("%sBandwidth Constraints Model ID: %s (%u)", 1781146778Ssam ident, 1782146778Ssam tok2str(diffserv_te_bc_values, "unknown", *tptr), 1783146778Ssam *tptr); 1784146778Ssam tptr++; 1785146778Ssam /* decode BCs until the subTLV ends */ 1786162021Ssam for (te_class = 0; te_class < (subl-1)/4; te_class++) { 1787146778Ssam bw.i = EXTRACT_32BITS(tptr); 1788162021Ssam printf("%s Bandwidth constraint CT%u: %.3f Mbps", 1789146778Ssam ident, 1790162021Ssam te_class, 1791146778Ssam bw.f*8/1000000 ); 1792146778Ssam tptr+=4; 1793146778Ssam } 1794146778Ssam break; 1795146778Ssam case ISIS_SUBTLV_EXT_IS_REACH_TE_METRIC: 1796127675Sbms if (subl >= 3) 1797127675Sbms printf(", %u", EXTRACT_24BITS(tptr)); 1798127675Sbms break; 1799190207Srpaulo case ISIS_SUBTLV_EXT_IS_REACH_LINK_ATTRIBUTE: 1800190207Srpaulo if (subl == 2) { 1801190207Srpaulo printf(", [ %s ] (0x%04x)", 1802190207Srpaulo bittok2str(isis_subtlv_link_attribute_values, 1803190207Srpaulo "Unknown", 1804190207Srpaulo EXTRACT_16BITS(tptr)), 1805190207Srpaulo EXTRACT_16BITS(tptr)); 1806190207Srpaulo } 1807190207Srpaulo break; 1808146778Ssam case ISIS_SUBTLV_EXT_IS_REACH_LINK_PROTECTION_TYPE: 1809127675Sbms if (subl >= 2) { 1810127675Sbms printf(", %s, Priority %u", 1811127675Sbms bittok2str(gmpls_link_prot_values, "none", *tptr), 1812127675Sbms *(tptr+1)); 1813127675Sbms } 1814127675Sbms break; 1815252283Sdelphij case ISIS_SUBTLV_SPB_METRIC: 1816252283Sdelphij if (subl >= 6) { 1817252283Sdelphij printf (", LM: %u", EXTRACT_24BITS(tptr)); 1818252283Sdelphij tptr=tptr+3; 1819252283Sdelphij printf (", P: %u", *(tptr)); 1820252283Sdelphij printf (", P-ID: %u", EXTRACT_16BITS(++tptr)); 1821252283Sdelphij } 1822252283Sdelphij break; 1823146778Ssam case ISIS_SUBTLV_EXT_IS_REACH_INTF_SW_CAP_DESCR: 1824127675Sbms if (subl >= 36) { 1825190207Srpaulo gmpls_switch_cap = *tptr; 1826127675Sbms printf("%s Interface Switching Capability:%s", 1827127675Sbms ident, 1828190207Srpaulo tok2str(gmpls_switch_cap_values, "Unknown", gmpls_switch_cap)); 1829127675Sbms printf(", LSP Encoding: %s", 1830127675Sbms tok2str(gmpls_encoding_values, "Unknown", *(tptr+1))); 1831127675Sbms tptr+=4; 1832127675Sbms printf("%s Max LSP Bandwidth:",ident); 1833127675Sbms for (priority_level = 0; priority_level < 8; priority_level++) { 1834127675Sbms bw.i = EXTRACT_32BITS(tptr); 1835127675Sbms printf("%s priority level %d: %.3f Mbps", 1836127675Sbms ident, 1837127675Sbms priority_level, 1838127675Sbms bw.f*8/1000000 ); 1839127675Sbms tptr+=4; 1840127675Sbms } 1841127675Sbms subl-=36; 1842190207Srpaulo switch (gmpls_switch_cap) { 1843190207Srpaulo case GMPLS_PSC1: 1844190207Srpaulo case GMPLS_PSC2: 1845190207Srpaulo case GMPLS_PSC3: 1846190207Srpaulo case GMPLS_PSC4: 1847190207Srpaulo bw.i = EXTRACT_32BITS(tptr); 1848190207Srpaulo printf("%s Min LSP Bandwidth: %.3f Mbps", ident, bw.f*8/1000000); 1849190207Srpaulo printf("%s Interface MTU: %u", ident, EXTRACT_16BITS(tptr+4)); 1850190207Srpaulo break; 1851190207Srpaulo case GMPLS_TSC: 1852190207Srpaulo bw.i = EXTRACT_32BITS(tptr); 1853190207Srpaulo printf("%s Min LSP Bandwidth: %.3f Mbps", ident, bw.f*8/1000000); 1854190207Srpaulo printf("%s Indication %s", ident, 1855190207Srpaulo tok2str(gmpls_switch_cap_tsc_indication_values, "Unknown (%u)", *(tptr+4))); 1856190207Srpaulo break; 1857190207Srpaulo default: 1858190207Srpaulo /* there is some optional stuff left to decode but this is as of yet 1859190207Srpaulo not specified so just lets hexdump what is left */ 1860190207Srpaulo if(subl>0){ 1861190207Srpaulo if(!print_unknown_data(tptr,"\n\t\t ", 1862190207Srpaulo subl)) 1863127675Sbms return(0); 1864190207Srpaulo } 1865127675Sbms } 1866127675Sbms } 1867127675Sbms break; 1868127675Sbms default: 1869127675Sbms if(!print_unknown_data(tptr,"\n\t\t ", 1870127675Sbms subl)) 1871127675Sbms return(0); 1872127675Sbms break; 1873127675Sbms } 1874127675Sbms return(1); 187598527Sfenner 1876127675Sbmstrunctlv: 1877127675Sbms printf("%spacket exceeded snapshot",ident); 1878127675Sbms return(0); 1879127675Sbms} 188098527Sfenner 188198527Sfenner 1882127675Sbms/* 1883127675Sbms * this is the common IS-REACH decoder it is called 1884127675Sbms * from various EXTD-IS REACH style TLVs (22,24,222) 1885127675Sbms */ 188698527Sfenner 1887127675Sbmsstatic int 1888127675Sbmsisis_print_ext_is_reach (const u_int8_t *tptr,const char *ident, int tlv_type) { 188998527Sfenner 1890127675Sbms char ident_buffer[20]; 1891127675Sbms int subtlv_type,subtlv_len,subtlv_sum_len; 1892127675Sbms int proc_bytes = 0; /* how many bytes did we process ? */ 1893127675Sbms 1894127675Sbms if (!TTEST2(*tptr, NODE_ID_LEN)) 1895127675Sbms return(0); 189698527Sfenner 1897127675Sbms printf("%sIS Neighbor: %s", ident, isis_print_id(tptr, NODE_ID_LEN)); 1898127675Sbms tptr+=(NODE_ID_LEN); 189998527Sfenner 1900146778Ssam if (tlv_type != ISIS_TLV_IS_ALIAS_ID) { /* the Alias TLV Metric field is implicit 0 */ 1901127675Sbms if (!TTEST2(*tptr, 3)) /* and is therefore skipped */ 1902127675Sbms return(0); 1903127675Sbms printf(", Metric: %d",EXTRACT_24BITS(tptr)); 1904127675Sbms tptr+=3; 1905127675Sbms } 1906127675Sbms 1907127675Sbms if (!TTEST2(*tptr, 1)) 1908127675Sbms return(0); 1909127675Sbms subtlv_sum_len=*(tptr++); /* read out subTLV length */ 1910127675Sbms proc_bytes=NODE_ID_LEN+3+1; 1911127675Sbms printf(", %ssub-TLVs present",subtlv_sum_len ? "" : "no "); 1912127675Sbms if (subtlv_sum_len) { 1913127675Sbms printf(" (%u)",subtlv_sum_len); 1914127675Sbms while (subtlv_sum_len>0) { 1915127675Sbms if (!TTEST2(*tptr,2)) 1916127675Sbms return(0); 1917127675Sbms subtlv_type=*(tptr++); 1918127675Sbms subtlv_len=*(tptr++); 1919127675Sbms /* prepend the ident string */ 1920127675Sbms snprintf(ident_buffer, sizeof(ident_buffer), "%s ",ident); 1921127675Sbms if(!isis_print_is_reach_subtlv(tptr,subtlv_type,subtlv_len,ident_buffer)) 1922127675Sbms return(0); 1923127675Sbms tptr+=subtlv_len; 1924127675Sbms subtlv_sum_len-=(subtlv_len+2); 1925127675Sbms proc_bytes+=(subtlv_len+2); 1926127675Sbms } 1927127675Sbms } 1928127675Sbms return(proc_bytes); 192917688Spst} 193017688Spst 193117688Spst/* 1932127675Sbms * this is the common Multi Topology ID decoder 1933127675Sbms * it is called from various MT-TLVs (222,229,235,237) 1934127675Sbms */ 1935127675Sbms 1936127675Sbmsstatic int 1937127675Sbmsisis_print_mtid (const u_int8_t *tptr,const char *ident) { 1938127675Sbms 1939127675Sbms if (!TTEST2(*tptr, 2)) 1940127675Sbms return(0); 1941127675Sbms 1942127675Sbms printf("%s%s", 1943127675Sbms ident, 1944127675Sbms tok2str(isis_mt_values, 1945127675Sbms "Reserved for IETF Consensus", 1946127675Sbms ISIS_MASK_MTID(EXTRACT_16BITS(tptr)))); 1947127675Sbms 1948127675Sbms printf(" Topology (0x%03x), Flags: [%s]", 1949127675Sbms ISIS_MASK_MTID(EXTRACT_16BITS(tptr)), 1950127675Sbms bittok2str(isis_mt_flag_values, "none",ISIS_MASK_MTFLAGS(EXTRACT_16BITS(tptr)))); 1951127675Sbms 1952127675Sbms return(2); 1953127675Sbms} 1954127675Sbms 1955127675Sbms/* 1956127675Sbms * this is the common extended IP reach decoder 1957127675Sbms * it is called from TLVs (135,235,236,237) 1958127675Sbms * we process the TLV and optional subTLVs and return 1959127675Sbms * the amount of processed bytes 1960127675Sbms */ 1961127675Sbms 1962127675Sbmsstatic int 1963127675Sbmsisis_print_extd_ip_reach (const u_int8_t *tptr, const char *ident, u_int16_t afi) { 1964127675Sbms 1965127675Sbms char ident_buffer[20]; 1966172686Smlaier#ifdef INET6 1967162021Ssam u_int8_t prefix[sizeof(struct in6_addr)]; /* shared copy buffer for IPv4 and IPv6 prefixes */ 1968172686Smlaier#else 1969172686Smlaier u_int8_t prefix[sizeof(struct in_addr)]; /* shared copy buffer for IPv4 prefixes */ 1970172686Smlaier#endif 1971127675Sbms u_int metric, status_byte, bit_length, byte_length, sublen, processed, subtlvtype, subtlvlen; 1972127675Sbms 1973127675Sbms if (!TTEST2(*tptr, 4)) 1974127675Sbms return (0); 1975127675Sbms metric = EXTRACT_32BITS(tptr); 1976127675Sbms processed=4; 1977127675Sbms tptr+=4; 1978127675Sbms 1979190207Srpaulo if (afi == AF_INET) { 1980127675Sbms if (!TTEST2(*tptr, 1)) /* fetch status byte */ 1981127675Sbms return (0); 1982127675Sbms status_byte=*(tptr++); 1983127675Sbms bit_length = status_byte&0x3f; 1984172686Smlaier if (bit_length > 32) { 1985172686Smlaier printf("%sIPv4 prefix: bad bit length %u", 1986172686Smlaier ident, 1987172686Smlaier bit_length); 1988172686Smlaier return (0); 1989172686Smlaier } 1990127675Sbms processed++; 1991127675Sbms#ifdef INET6 1992190207Srpaulo } else if (afi == AF_INET6) { 1993127675Sbms if (!TTEST2(*tptr, 1)) /* fetch status & prefix_len byte */ 1994127675Sbms return (0); 1995127675Sbms status_byte=*(tptr++); 1996127675Sbms bit_length=*(tptr++); 1997172686Smlaier if (bit_length > 128) { 1998172686Smlaier printf("%sIPv6 prefix: bad bit length %u", 1999172686Smlaier ident, 2000172686Smlaier bit_length); 2001172686Smlaier return (0); 2002172686Smlaier } 2003127675Sbms processed+=2; 2004127675Sbms#endif 2005127675Sbms } else 2006127675Sbms return (0); /* somebody is fooling us */ 2007127675Sbms 2008127675Sbms byte_length = (bit_length + 7) / 8; /* prefix has variable length encoding */ 2009127675Sbms 2010127675Sbms if (!TTEST2(*tptr, byte_length)) 2011127675Sbms return (0); 2012172686Smlaier memset(prefix, 0, sizeof prefix); /* clear the copy buffer */ 2013127675Sbms memcpy(prefix,tptr,byte_length); /* copy as much as is stored in the TLV */ 2014127675Sbms tptr+=byte_length; 2015127675Sbms processed+=byte_length; 2016127675Sbms 2017190207Srpaulo if (afi == AF_INET) 2018127675Sbms printf("%sIPv4 prefix: %15s/%u", 2019127675Sbms ident, 2020127675Sbms ipaddr_string(prefix), 2021127675Sbms bit_length); 2022127675Sbms#ifdef INET6 2023190207Srpaulo if (afi == AF_INET6) 2024127675Sbms printf("%sIPv6 prefix: %s/%u", 2025127675Sbms ident, 2026127675Sbms ip6addr_string(prefix), 2027127675Sbms bit_length); 2028127675Sbms#endif 2029127675Sbms 2030127675Sbms printf(", Distribution: %s, Metric: %u", 2031127675Sbms ISIS_MASK_TLV_EXTD_IP_UPDOWN(status_byte) ? "down" : "up", 2032127675Sbms metric); 2033127675Sbms 2034190207Srpaulo if (afi == AF_INET && ISIS_MASK_TLV_EXTD_IP_SUBTLV(status_byte)) 2035127675Sbms printf(", sub-TLVs present"); 2036127675Sbms#ifdef INET6 2037190207Srpaulo if (afi == AF_INET6) 2038127675Sbms printf(", %s%s", 2039127675Sbms ISIS_MASK_TLV_EXTD_IP6_IE(status_byte) ? "External" : "Internal", 2040127675Sbms ISIS_MASK_TLV_EXTD_IP6_SUBTLV(status_byte) ? ", sub-TLVs present" : ""); 2041127675Sbms#endif 2042127675Sbms 2043190207Srpaulo if ((afi == AF_INET && ISIS_MASK_TLV_EXTD_IP_SUBTLV(status_byte)) 2044190207Srpaulo#ifdef INET6 2045190207Srpaulo || (afi == AF_INET6 && ISIS_MASK_TLV_EXTD_IP6_SUBTLV(status_byte)) 2046190207Srpaulo#endif 2047190207Srpaulo ) { 2048127675Sbms /* assume that one prefix can hold more 2049127675Sbms than one subTLV - therefore the first byte must reflect 2050127675Sbms the aggregate bytecount of the subTLVs for this prefix 2051127675Sbms */ 2052127675Sbms if (!TTEST2(*tptr, 1)) 2053127675Sbms return (0); 2054127675Sbms sublen=*(tptr++); 2055127675Sbms processed+=sublen+1; 2056127675Sbms printf(" (%u)",sublen); /* print out subTLV length */ 2057127675Sbms 2058127675Sbms while (sublen>0) { 2059127675Sbms if (!TTEST2(*tptr,2)) 2060127675Sbms return (0); 2061127675Sbms subtlvtype=*(tptr++); 2062127675Sbms subtlvlen=*(tptr++); 2063127675Sbms /* prepend the ident string */ 2064127675Sbms snprintf(ident_buffer, sizeof(ident_buffer), "%s ",ident); 2065127675Sbms if(!isis_print_ip_reach_subtlv(tptr,subtlvtype,subtlvlen,ident_buffer)) 2066127675Sbms return(0); 2067127675Sbms tptr+=subtlvlen; 2068127675Sbms sublen-=(subtlvlen+2); 2069127675Sbms } 2070127675Sbms } 2071127675Sbms return (processed); 2072127675Sbms} 2073127675Sbms 2074127675Sbms/* 207517688Spst * isis_print 207617688Spst * Decode IS-IS packets. Return 0 on error. 207717688Spst */ 207817688Spst 2079127675Sbmsstatic int isis_print (const u_int8_t *p, u_int length) 208017688Spst{ 2081146778Ssam const struct isis_common_header *isis_header; 208217688Spst 208398527Sfenner const struct isis_iih_lan_header *header_iih_lan; 208498527Sfenner const struct isis_iih_ptp_header *header_iih_ptp; 2085214478Srpaulo struct isis_lsp_header *header_lsp; 208698527Sfenner const struct isis_csnp_header *header_csnp; 208798527Sfenner const struct isis_psnp_header *header_psnp; 208817688Spst 208998527Sfenner const struct isis_tlv_lsp *tlv_lsp; 209098527Sfenner const struct isis_tlv_ptp_adj *tlv_ptp_adj; 209198527Sfenner const struct isis_tlv_is_reach *tlv_is_reach; 2092127675Sbms const struct isis_tlv_es_reach *tlv_es_reach; 209398527Sfenner 2094127675Sbms u_int8_t pdu_type, max_area, id_length, tlv_type, tlv_len, tmp, alen, lan_alen, prefix_len; 2095127675Sbms u_int8_t ext_is_len, ext_ip_len, mt_len; 2096127675Sbms const u_int8_t *optr, *pptr, *tptr; 2097236192Sdelphij u_short packet_len,pdu_len, key_id; 2098146778Ssam u_int i,vendor_id; 2099214478Srpaulo int sigcheck; 210098527Sfenner 210198527Sfenner packet_len=length; 2102127675Sbms optr = p; /* initialize the _o_riginal pointer to the packet start - 2103214478Srpaulo need it for parsing the checksum TLV and authentication 2104214478Srpaulo TLV verification */ 2105146778Ssam isis_header = (const struct isis_common_header *)p; 2106146778Ssam TCHECK(*isis_header); 2107127675Sbms pptr = p+(ISIS_COMMON_HEADER_SIZE); 210898527Sfenner header_iih_lan = (const struct isis_iih_lan_header *)pptr; 210998527Sfenner header_iih_ptp = (const struct isis_iih_ptp_header *)pptr; 2110214478Srpaulo header_lsp = (struct isis_lsp_header *)pptr; 211198527Sfenner header_csnp = (const struct isis_csnp_header *)pptr; 211298527Sfenner header_psnp = (const struct isis_psnp_header *)pptr; 2113127675Sbms 2114146778Ssam if (!eflag) 2115146778Ssam printf("IS-IS"); 2116146778Ssam 211717688Spst /* 211817688Spst * Sanity checking of the header. 211917688Spst */ 212017688Spst 2121146778Ssam if (isis_header->version != ISIS_VERSION) { 2122146778Ssam printf("version %d packet not supported", isis_header->version); 212398527Sfenner return (0); 212417688Spst } 212517688Spst 2126146778Ssam if ((isis_header->id_length != SYSTEM_ID_LEN) && (isis_header->id_length != 0)) { 2127146778Ssam printf("system ID length of %d is not supported", 2128146778Ssam isis_header->id_length); 212998527Sfenner return (0); 213017688Spst } 2131127675Sbms 2132146778Ssam if (isis_header->pdu_version != ISIS_VERSION) { 2133146778Ssam printf("version %d packet not supported", isis_header->pdu_version); 213498527Sfenner return (0); 213517688Spst } 213617688Spst 2137146778Ssam max_area = isis_header->max_area; 213817688Spst switch(max_area) { 213917688Spst case 0: 2140127675Sbms max_area = 3; /* silly shit */ 214117688Spst break; 214217688Spst case 255: 2143146778Ssam printf("bad packet -- 255 areas"); 214498527Sfenner return (0); 214517688Spst default: 214617688Spst break; 214717688Spst } 214817688Spst 2149146778Ssam id_length = isis_header->id_length; 2150127675Sbms switch(id_length) { 2151127675Sbms case 0: 2152127675Sbms id_length = 6; /* silly shit again */ 2153127675Sbms break; 2154127675Sbms case 1: /* 1-8 are valid sys-ID lenghts */ 2155127675Sbms case 2: 2156127675Sbms case 3: 2157127675Sbms case 4: 2158127675Sbms case 5: 2159127675Sbms case 6: 2160127675Sbms case 7: 2161127675Sbms case 8: 2162127675Sbms break; 2163127675Sbms case 255: 2164127675Sbms id_length = 0; /* entirely useless */ 2165127675Sbms break; 2166127675Sbms default: 2167127675Sbms break; 2168127675Sbms } 2169127675Sbms 2170127675Sbms /* toss any non 6-byte sys-ID len PDUs */ 2171127675Sbms if (id_length != 6 ) { 2172146778Ssam printf("bad packet -- illegal sys-ID length (%u)", id_length); 2173127675Sbms return (0); 2174127675Sbms } 2175127675Sbms 2176146778Ssam pdu_type=isis_header->pdu_type; 2177127675Sbms 2178127675Sbms /* in non-verbose mode print the basic PDU Type plus PDU specific brief information*/ 2179127675Sbms if (vflag < 1) { 2180146778Ssam printf("%s%s", 2181146778Ssam eflag ? "" : ", ", 2182127675Sbms tok2str(isis_pdu_values,"unknown PDU-Type %u",pdu_type)); 2183127675Sbms 2184127675Sbms switch (pdu_type) { 2185127675Sbms 2186146778Ssam case ISIS_PDU_L1_LAN_IIH: 2187146778Ssam case ISIS_PDU_L2_LAN_IIH: 2188127675Sbms printf(", src-id %s", 2189127675Sbms isis_print_id(header_iih_lan->source_id,SYSTEM_ID_LEN)); 2190127675Sbms printf(", lan-id %s, prio %u", 2191127675Sbms isis_print_id(header_iih_lan->lan_id,NODE_ID_LEN), 2192127675Sbms header_iih_lan->priority); 2193127675Sbms break; 2194146778Ssam case ISIS_PDU_PTP_IIH: 2195127675Sbms printf(", src-id %s", isis_print_id(header_iih_ptp->source_id,SYSTEM_ID_LEN)); 2196127675Sbms break; 2197146778Ssam case ISIS_PDU_L1_LSP: 2198146778Ssam case ISIS_PDU_L2_LSP: 2199127675Sbms printf(", lsp-id %s, seq 0x%08x, lifetime %5us", 2200127675Sbms isis_print_id(header_lsp->lsp_id, LSP_ID_LEN), 2201127675Sbms EXTRACT_32BITS(header_lsp->sequence_number), 2202127675Sbms EXTRACT_16BITS(header_lsp->remaining_lifetime)); 2203127675Sbms break; 2204146778Ssam case ISIS_PDU_L1_CSNP: 2205146778Ssam case ISIS_PDU_L2_CSNP: 2206146778Ssam printf(", src-id %s", isis_print_id(header_csnp->source_id,NODE_ID_LEN)); 2207127675Sbms break; 2208146778Ssam case ISIS_PDU_L1_PSNP: 2209146778Ssam case ISIS_PDU_L2_PSNP: 2210146778Ssam printf(", src-id %s", isis_print_id(header_psnp->source_id,NODE_ID_LEN)); 2211127675Sbms break; 2212127675Sbms 2213127675Sbms } 2214127675Sbms printf(", length %u", length); 2215127675Sbms 2216127675Sbms return(1); 2217127675Sbms } 2218127675Sbms 2219127675Sbms /* ok they seem to want to know everything - lets fully decode it */ 2220146778Ssam printf("%slength %u", eflag ? "" : ", ",length); 2221127675Sbms 2222127675Sbms printf("\n\t%s, hlen: %u, v: %u, pdu-v: %u, sys-id-len: %u (%u), max-area: %u (%u)", 2223127675Sbms tok2str(isis_pdu_values, 2224127675Sbms "unknown, type %u", 2225127675Sbms pdu_type), 2226146778Ssam isis_header->fixed_len, 2227146778Ssam isis_header->version, 2228146778Ssam isis_header->pdu_version, 2229127675Sbms id_length, 2230146778Ssam isis_header->id_length, 223198527Sfenner max_area, 2232146778Ssam isis_header->max_area); 2233127675Sbms 2234127675Sbms if (vflag > 1) { 2235127675Sbms if(!print_unknown_data(optr,"\n\t",8)) /* provide the _o_riginal pointer */ 2236127675Sbms return(0); /* for optionally debugging the common header */ 2237127675Sbms } 2238127675Sbms 223998527Sfenner switch (pdu_type) { 224098527Sfenner 2241146778Ssam case ISIS_PDU_L1_LAN_IIH: 2242146778Ssam case ISIS_PDU_L2_LAN_IIH: 2243146778Ssam if (isis_header->fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_LAN_HEADER_SIZE)) { 224498527Sfenner printf(", bogus fixed header length %u should be %lu", 2245146778Ssam isis_header->fixed_len, (unsigned long)ISIS_IIH_LAN_HEADER_SIZE); 224698527Sfenner return (0); 224717688Spst } 224898527Sfenner 224998527Sfenner pdu_len=EXTRACT_16BITS(header_iih_lan->pdu_len); 225098527Sfenner if (packet_len>pdu_len) { 2251127675Sbms packet_len=pdu_len; /* do TLV decoding as long as it makes sense */ 2252127675Sbms length=pdu_len; 225398527Sfenner } 225498527Sfenner 225598527Sfenner TCHECK(*header_iih_lan); 2256127675Sbms printf("\n\t source-id: %s, holding time: %us, Flags: [%s]", 2257127675Sbms isis_print_id(header_iih_lan->source_id,SYSTEM_ID_LEN), 2258127675Sbms EXTRACT_16BITS(header_iih_lan->holding_time), 2259127675Sbms tok2str(isis_iih_circuit_type_values, 2260127675Sbms "unknown circuit type 0x%02x", 2261127675Sbms header_iih_lan->circuit_type)); 226298527Sfenner 2263127675Sbms printf("\n\t lan-id: %s, Priority: %u, PDU length: %u", 2264127675Sbms isis_print_id(header_iih_lan->lan_id, NODE_ID_LEN), 2265146778Ssam (header_iih_lan->priority) & ISIS_LAN_PRIORITY_MASK, 2266127675Sbms pdu_len); 226798527Sfenner 2268127675Sbms if (vflag > 1) { 2269127675Sbms if(!print_unknown_data(pptr,"\n\t ",ISIS_IIH_LAN_HEADER_SIZE)) 2270127675Sbms return(0); 2271127675Sbms } 227298527Sfenner 227398527Sfenner packet_len -= (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_LAN_HEADER_SIZE); 227498527Sfenner pptr = p + (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_LAN_HEADER_SIZE); 227517688Spst break; 227698527Sfenner 2277146778Ssam case ISIS_PDU_PTP_IIH: 2278146778Ssam if (isis_header->fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_PTP_HEADER_SIZE)) { 227998527Sfenner printf(", bogus fixed header length %u should be %lu", 2280146778Ssam isis_header->fixed_len, (unsigned long)ISIS_IIH_PTP_HEADER_SIZE); 228198527Sfenner return (0); 228217688Spst } 2283127675Sbms 228498527Sfenner pdu_len=EXTRACT_16BITS(header_iih_ptp->pdu_len); 228598527Sfenner if (packet_len>pdu_len) { 2286127675Sbms packet_len=pdu_len; /* do TLV decoding as long as it makes sense */ 2287127675Sbms length=pdu_len; 228898527Sfenner } 2289127675Sbms 229098527Sfenner TCHECK(*header_iih_ptp); 2291127675Sbms printf("\n\t source-id: %s, holding time: %us, Flags: [%s]", 2292127675Sbms isis_print_id(header_iih_ptp->source_id,SYSTEM_ID_LEN), 2293127675Sbms EXTRACT_16BITS(header_iih_ptp->holding_time), 2294127675Sbms tok2str(isis_iih_circuit_type_values, 2295127675Sbms "unknown circuit type 0x%02x", 2296127675Sbms header_iih_ptp->circuit_type)); 229798527Sfenner 2298127675Sbms printf("\n\t circuit-id: 0x%02x, PDU length: %u", 2299127675Sbms header_iih_ptp->circuit_id, 2300127675Sbms pdu_len); 230198527Sfenner 2302127675Sbms if (vflag > 1) { 2303127675Sbms if(!print_unknown_data(pptr,"\n\t ",ISIS_IIH_PTP_HEADER_SIZE)) 2304127675Sbms return(0); 2305127675Sbms } 230698527Sfenner 230798527Sfenner packet_len -= (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_PTP_HEADER_SIZE); 230898527Sfenner pptr = p + (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_PTP_HEADER_SIZE); 230917688Spst break; 231098527Sfenner 2311146778Ssam case ISIS_PDU_L1_LSP: 2312146778Ssam case ISIS_PDU_L2_LSP: 2313146778Ssam if (isis_header->fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_LSP_HEADER_SIZE)) { 231498527Sfenner printf(", bogus fixed header length %u should be %lu", 2315146778Ssam isis_header->fixed_len, (unsigned long)ISIS_LSP_HEADER_SIZE); 231698527Sfenner return (0); 231798527Sfenner } 2318127675Sbms 231998527Sfenner pdu_len=EXTRACT_16BITS(header_lsp->pdu_len); 232098527Sfenner if (packet_len>pdu_len) { 2321127675Sbms packet_len=pdu_len; /* do TLV decoding as long as it makes sense */ 2322127675Sbms length=pdu_len; 232398527Sfenner } 232498527Sfenner 232598527Sfenner TCHECK(*header_lsp); 2326127675Sbms printf("\n\t lsp-id: %s, seq: 0x%08x, lifetime: %5us\n\t chksum: 0x%04x", 2327127675Sbms isis_print_id(header_lsp->lsp_id, LSP_ID_LEN), 2328127675Sbms EXTRACT_32BITS(header_lsp->sequence_number), 2329127675Sbms EXTRACT_16BITS(header_lsp->remaining_lifetime), 2330127675Sbms EXTRACT_16BITS(header_lsp->checksum)); 233198527Sfenner 2332127675Sbms 2333190207Srpaulo osi_print_cksum((u_int8_t *)header_lsp->lsp_id, 2334190207Srpaulo EXTRACT_16BITS(header_lsp->checksum), 12, length-12); 2335190207Srpaulo 2336214478Srpaulo /* 2337214478Srpaulo * Clear checksum and lifetime prior to signature verification. 2338214478Srpaulo */ 2339214478Srpaulo header_lsp->checksum[0] = 0; 2340214478Srpaulo header_lsp->checksum[1] = 0; 2341214478Srpaulo header_lsp->remaining_lifetime[0] = 0; 2342214478Srpaulo header_lsp->remaining_lifetime[1] = 0; 2343214478Srpaulo 2344214478Srpaulo 2345127675Sbms printf(", PDU length: %u, Flags: [ %s", 2346127675Sbms pdu_len, 2347127675Sbms ISIS_MASK_LSP_OL_BIT(header_lsp->typeblock) ? "Overload bit set, " : ""); 2348127675Sbms 234998527Sfenner if (ISIS_MASK_LSP_ATT_BITS(header_lsp->typeblock)) { 235098527Sfenner printf("%s", ISIS_MASK_LSP_ATT_DEFAULT_BIT(header_lsp->typeblock) ? "default " : ""); 235198527Sfenner printf("%s", ISIS_MASK_LSP_ATT_DELAY_BIT(header_lsp->typeblock) ? "delay " : ""); 235298527Sfenner printf("%s", ISIS_MASK_LSP_ATT_EXPENSE_BIT(header_lsp->typeblock) ? "expense " : ""); 235398527Sfenner printf("%s", ISIS_MASK_LSP_ATT_ERROR_BIT(header_lsp->typeblock) ? "error " : ""); 235498527Sfenner printf("ATT bit set, "); 235598527Sfenner } 235698527Sfenner printf("%s", ISIS_MASK_LSP_PARTITION_BIT(header_lsp->typeblock) ? "P bit set, " : ""); 2357127675Sbms printf("%s ]", tok2str(isis_lsp_istype_values,"Unknown(0x%x)",ISIS_MASK_LSP_ISTYPE_BITS(header_lsp->typeblock))); 235898527Sfenner 2359127675Sbms if (vflag > 1) { 2360127675Sbms if(!print_unknown_data(pptr,"\n\t ",ISIS_LSP_HEADER_SIZE)) 2361127675Sbms return(0); 2362127675Sbms } 2363127675Sbms 236498527Sfenner packet_len -= (ISIS_COMMON_HEADER_SIZE+ISIS_LSP_HEADER_SIZE); 236598527Sfenner pptr = p + (ISIS_COMMON_HEADER_SIZE+ISIS_LSP_HEADER_SIZE); 236617688Spst break; 236798527Sfenner 2368146778Ssam case ISIS_PDU_L1_CSNP: 2369146778Ssam case ISIS_PDU_L2_CSNP: 2370146778Ssam if (isis_header->fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_CSNP_HEADER_SIZE)) { 237198527Sfenner printf(", bogus fixed header length %u should be %lu", 2372146778Ssam isis_header->fixed_len, (unsigned long)ISIS_CSNP_HEADER_SIZE); 237398527Sfenner return (0); 237498527Sfenner } 2375127675Sbms 237698527Sfenner pdu_len=EXTRACT_16BITS(header_csnp->pdu_len); 237798527Sfenner if (packet_len>pdu_len) { 2378127675Sbms packet_len=pdu_len; /* do TLV decoding as long as it makes sense */ 2379127675Sbms length=pdu_len; 238098527Sfenner } 238117688Spst 238298527Sfenner TCHECK(*header_csnp); 2383127675Sbms printf("\n\t source-id: %s, PDU length: %u", 2384127675Sbms isis_print_id(header_csnp->source_id, NODE_ID_LEN), 2385127675Sbms pdu_len); 2386127675Sbms printf("\n\t start lsp-id: %s", 2387127675Sbms isis_print_id(header_csnp->start_lsp_id, LSP_ID_LEN)); 2388127675Sbms printf("\n\t end lsp-id: %s", 2389127675Sbms isis_print_id(header_csnp->end_lsp_id, LSP_ID_LEN)); 239017688Spst 2391127675Sbms if (vflag > 1) { 2392127675Sbms if(!print_unknown_data(pptr,"\n\t ",ISIS_CSNP_HEADER_SIZE)) 2393127675Sbms return(0); 2394127675Sbms } 2395127675Sbms 239698527Sfenner packet_len -= (ISIS_COMMON_HEADER_SIZE+ISIS_CSNP_HEADER_SIZE); 239798527Sfenner pptr = p + (ISIS_COMMON_HEADER_SIZE+ISIS_CSNP_HEADER_SIZE); 239898527Sfenner break; 239917688Spst 2400146778Ssam case ISIS_PDU_L1_PSNP: 2401146778Ssam case ISIS_PDU_L2_PSNP: 2402146778Ssam if (isis_header->fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_PSNP_HEADER_SIZE)) { 240398527Sfenner printf("- bogus fixed header length %u should be %lu", 2404146778Ssam isis_header->fixed_len, (unsigned long)ISIS_PSNP_HEADER_SIZE); 240598527Sfenner return (0); 240698527Sfenner } 240798527Sfenner 240898527Sfenner pdu_len=EXTRACT_16BITS(header_psnp->pdu_len); 240998527Sfenner if (packet_len>pdu_len) { 2410127675Sbms packet_len=pdu_len; /* do TLV decoding as long as it makes sense */ 2411127675Sbms length=pdu_len; 241298527Sfenner } 241398527Sfenner 241498527Sfenner TCHECK(*header_psnp); 2415127675Sbms printf("\n\t source-id: %s, PDU length: %u", 2416127675Sbms isis_print_id(header_psnp->source_id, NODE_ID_LEN), 2417127675Sbms pdu_len); 2418127675Sbms 2419127675Sbms if (vflag > 1) { 2420127675Sbms if(!print_unknown_data(pptr,"\n\t ",ISIS_PSNP_HEADER_SIZE)) 2421127675Sbms return(0); 2422127675Sbms } 2423127675Sbms 242498527Sfenner packet_len -= (ISIS_COMMON_HEADER_SIZE+ISIS_PSNP_HEADER_SIZE); 242598527Sfenner pptr = p + (ISIS_COMMON_HEADER_SIZE+ISIS_PSNP_HEADER_SIZE); 242617688Spst break; 242717688Spst 242898527Sfenner default: 2429127675Sbms if(!print_unknown_data(pptr,"\n\t ",length)) 2430127675Sbms return(0); 2431127675Sbms return (0); 243217688Spst } 243317688Spst 243417688Spst /* 243517688Spst * Now print the TLV's. 243617688Spst */ 2437127675Sbms 243817688Spst while (packet_len >= 2) { 243998527Sfenner if (pptr == snapend) { 244098527Sfenner return (1); 244198527Sfenner } 244298527Sfenner 244398527Sfenner if (!TTEST2(*pptr, 2)) { 2444127675Sbms printf("\n\t\t packet exceeded snapshot (%ld) bytes", 2445127675Sbms (long)(pptr-snapend)); 244698527Sfenner return (1); 244717688Spst } 2448127675Sbms tlv_type = *pptr++; 2449127675Sbms tlv_len = *pptr++; 2450127675Sbms tmp =tlv_len; /* copy temporary len & pointer to packet data */ 2451127675Sbms tptr = pptr; 245217688Spst packet_len -= 2; 2453127675Sbms if (tlv_len > packet_len) { 245417688Spst break; 245517688Spst } 245617688Spst 2457127675Sbms /* first lets see if we know the TLVs name*/ 2458127675Sbms printf("\n\t %s TLV #%u, length: %u", 2459127675Sbms tok2str(isis_tlv_values, 2460127675Sbms "unknown", 2461127675Sbms tlv_type), 2462127675Sbms tlv_type, 2463127675Sbms tlv_len); 2464127675Sbms 2465147175Ssam if (tlv_len == 0) /* something is malformed */ 2466172686Smlaier continue; 2467147175Ssam 2468127675Sbms /* now check if we have a decoder otherwise do a hexdump at the end*/ 2469127675Sbms switch (tlv_type) { 2470146778Ssam case ISIS_TLV_AREA_ADDR: 247198527Sfenner if (!TTEST2(*tptr, 1)) 247298527Sfenner goto trunctlv; 247317688Spst alen = *tptr++; 247417688Spst while (tmp && alen < tmp) { 2475127675Sbms printf("\n\t Area address (length: %u): %s", 2476127675Sbms alen, 2477146778Ssam isonsap_string(tptr,alen)); 247817688Spst tptr += alen; 247917688Spst tmp -= alen + 1; 248098527Sfenner if (tmp==0) /* if this is the last area address do not attemt a boundary check */ 2481127675Sbms break; 248298527Sfenner if (!TTEST2(*tptr, 1)) 248398527Sfenner goto trunctlv; 248417688Spst alen = *tptr++; 248517688Spst } 248617688Spst break; 2487146778Ssam case ISIS_TLV_ISNEIGH: 248875118Sfenner while (tmp >= ETHER_ADDR_LEN) { 2489127675Sbms if (!TTEST2(*tptr, ETHER_ADDR_LEN)) 2490127675Sbms goto trunctlv; 2491127675Sbms printf("\n\t SNPA: %s",isis_print_id(tptr,ETHER_ADDR_LEN)); 2492127675Sbms tmp -= ETHER_ADDR_LEN; 2493127675Sbms tptr += ETHER_ADDR_LEN; 249417688Spst } 249517688Spst break; 249698527Sfenner 2497146778Ssam case ISIS_TLV_ISNEIGH_VARLEN: 2498147175Ssam if (!TTEST2(*tptr, 1) || tmp < 3) /* min. TLV length */ 2499127675Sbms goto trunctlv; 2500147904Ssam lan_alen = *tptr++; /* LAN address length */ 2501147904Ssam if (lan_alen == 0) { 2502147904Ssam printf("\n\t LAN address length 0 bytes (invalid)"); 2503147904Ssam break; 2504147904Ssam } 2505127675Sbms tmp --; 2506127675Sbms printf("\n\t LAN address length %u bytes ",lan_alen); 2507127675Sbms while (tmp >= lan_alen) { 2508127675Sbms if (!TTEST2(*tptr, lan_alen)) 2509127675Sbms goto trunctlv; 2510127675Sbms printf("\n\t\tIS Neighbor: %s",isis_print_id(tptr,lan_alen)); 2511127675Sbms tmp -= lan_alen; 2512127675Sbms tptr +=lan_alen; 2513127675Sbms } 2514127675Sbms break; 2515127675Sbms 2516146778Ssam case ISIS_TLV_PADDING: 251717688Spst break; 251898527Sfenner 2519146778Ssam case ISIS_TLV_MT_IS_REACH: 2520214478Srpaulo mt_len = isis_print_mtid(tptr, "\n\t "); 2521214478Srpaulo if (mt_len == 0) /* did something go wrong ? */ 2522214478Srpaulo goto trunctlv; 2523214478Srpaulo tptr+=mt_len; 2524214478Srpaulo tmp-=mt_len; 2525127675Sbms while (tmp >= 2+NODE_ID_LEN+3+1) { 2526127675Sbms ext_is_len = isis_print_ext_is_reach(tptr,"\n\t ",tlv_type); 2527127675Sbms if (ext_is_len == 0) /* did something go wrong ? */ 252898527Sfenner goto trunctlv; 2529127675Sbms 2530127675Sbms tmp-=ext_is_len; 2531127675Sbms tptr+=ext_is_len; 253298527Sfenner } 253398527Sfenner break; 253498527Sfenner 2535146778Ssam case ISIS_TLV_IS_ALIAS_ID: 2536127675Sbms while (tmp >= NODE_ID_LEN+1) { /* is it worth attempting a decode ? */ 2537127675Sbms ext_is_len = isis_print_ext_is_reach(tptr,"\n\t ",tlv_type); 2538127675Sbms if (ext_is_len == 0) /* did something go wrong ? */ 2539127675Sbms goto trunctlv; 2540127675Sbms tmp-=ext_is_len; 2541127675Sbms tptr+=ext_is_len; 2542127675Sbms } 2543127675Sbms break; 2544127675Sbms 2545146778Ssam case ISIS_TLV_EXT_IS_REACH: 2546127675Sbms while (tmp >= NODE_ID_LEN+3+1) { /* is it worth attempting a decode ? */ 2547127675Sbms ext_is_len = isis_print_ext_is_reach(tptr,"\n\t ",tlv_type); 2548127675Sbms if (ext_is_len == 0) /* did something go wrong ? */ 2549127675Sbms goto trunctlv; 2550127675Sbms tmp-=ext_is_len; 2551127675Sbms tptr+=ext_is_len; 255298527Sfenner } 255398527Sfenner break; 2554146778Ssam case ISIS_TLV_IS_REACH: 255598527Sfenner if (!TTEST2(*tptr,1)) /* check if there is one byte left to read out the virtual flag */ 2556127675Sbms goto trunctlv; 2557127675Sbms printf("\n\t %s", 2558127675Sbms tok2str(isis_is_reach_virtual_values, 2559127675Sbms "bogus virtual flag 0x%02x", 2560127675Sbms *tptr++)); 256198527Sfenner tlv_is_reach = (const struct isis_tlv_is_reach *)tptr; 256298527Sfenner while (tmp >= sizeof(struct isis_tlv_is_reach)) { 256398527Sfenner if (!TTEST(*tlv_is_reach)) 256498527Sfenner goto trunctlv; 2565127675Sbms printf("\n\t IS Neighbor: %s", 2566127675Sbms isis_print_id(tlv_is_reach->neighbor_nodeid, NODE_ID_LEN)); 2567127675Sbms isis_print_metric_block(&tlv_is_reach->isis_metric_block); 256898527Sfenner tmp -= sizeof(struct isis_tlv_is_reach); 256998527Sfenner tlv_is_reach++; 257098527Sfenner } 257198527Sfenner break; 257298527Sfenner 2573146778Ssam case ISIS_TLV_ESNEIGH: 2574127675Sbms tlv_es_reach = (const struct isis_tlv_es_reach *)tptr; 2575127675Sbms while (tmp >= sizeof(struct isis_tlv_es_reach)) { 2576127675Sbms if (!TTEST(*tlv_es_reach)) 2577127675Sbms goto trunctlv; 2578127675Sbms printf("\n\t ES Neighbor: %s", 2579127675Sbms isis_print_id(tlv_es_reach->neighbor_sysid,SYSTEM_ID_LEN)); 2580127675Sbms isis_print_metric_block(&tlv_es_reach->isis_metric_block); 2581127675Sbms tmp -= sizeof(struct isis_tlv_es_reach); 2582127675Sbms tlv_es_reach++; 2583127675Sbms } 2584127675Sbms break; 2585127675Sbms 2586127675Sbms /* those two TLVs share the same format */ 2587146778Ssam case ISIS_TLV_INT_IP_REACH: 2588146778Ssam case ISIS_TLV_EXT_IP_REACH: 2589127675Sbms if (!isis_print_tlv_ip_reach(pptr, "\n\t ", tlv_len)) 259098527Sfenner return (1); 259117688Spst break; 259298527Sfenner 2593146778Ssam case ISIS_TLV_EXTD_IP_REACH: 2594127675Sbms while (tmp>0) { 2595190207Srpaulo ext_ip_len = isis_print_extd_ip_reach(tptr, "\n\t ", AF_INET); 2596127675Sbms if (ext_ip_len == 0) /* did something go wrong ? */ 2597127675Sbms goto trunctlv; 2598127675Sbms tptr+=ext_ip_len; 2599127675Sbms tmp-=ext_ip_len; 2600127675Sbms } 260198527Sfenner break; 260298527Sfenner 2603146778Ssam case ISIS_TLV_MT_IP_REACH: 2604172686Smlaier mt_len = isis_print_mtid(tptr, "\n\t "); 2605172686Smlaier if (mt_len == 0) { /* did something go wrong ? */ 2606172686Smlaier goto trunctlv; 2607172686Smlaier } 2608172686Smlaier tptr+=mt_len; 2609172686Smlaier tmp-=mt_len; 261098527Sfenner 2611172686Smlaier while (tmp>0) { 2612190207Srpaulo ext_ip_len = isis_print_extd_ip_reach(tptr, "\n\t ", AF_INET); 2613127675Sbms if (ext_ip_len == 0) /* did something go wrong ? */ 2614127675Sbms goto trunctlv; 2615127675Sbms tptr+=ext_ip_len; 2616127675Sbms tmp-=ext_ip_len; 261798527Sfenner } 261898527Sfenner break; 261998527Sfenner 262098527Sfenner#ifdef INET6 2621146778Ssam case ISIS_TLV_IP6_REACH: 2622127675Sbms while (tmp>0) { 2623190207Srpaulo ext_ip_len = isis_print_extd_ip_reach(tptr, "\n\t ", AF_INET6); 2624127675Sbms if (ext_ip_len == 0) /* did something go wrong ? */ 2625127675Sbms goto trunctlv; 2626127675Sbms tptr+=ext_ip_len; 2627127675Sbms tmp-=ext_ip_len; 2628127675Sbms } 2629127675Sbms break; 263098527Sfenner 2631146778Ssam case ISIS_TLV_MT_IP6_REACH: 2632172686Smlaier mt_len = isis_print_mtid(tptr, "\n\t "); 2633172686Smlaier if (mt_len == 0) { /* did something go wrong ? */ 2634172686Smlaier goto trunctlv; 2635172686Smlaier } 2636172686Smlaier tptr+=mt_len; 2637172686Smlaier tmp-=mt_len; 2638172686Smlaier 2639127675Sbms while (tmp>0) { 2640190207Srpaulo ext_ip_len = isis_print_extd_ip_reach(tptr, "\n\t ", AF_INET6); 2641127675Sbms if (ext_ip_len == 0) /* did something go wrong ? */ 2642127675Sbms goto trunctlv; 2643127675Sbms tptr+=ext_ip_len; 2644127675Sbms tmp-=ext_ip_len; 264598527Sfenner } 264698527Sfenner break; 264798527Sfenner 2648146778Ssam case ISIS_TLV_IP6ADDR: 2649162021Ssam while (tmp>=sizeof(struct in6_addr)) { 2650162021Ssam if (!TTEST2(*tptr, sizeof(struct in6_addr))) 265198527Sfenner goto trunctlv; 265298527Sfenner 2653127675Sbms printf("\n\t IPv6 interface address: %s", 265498527Sfenner ip6addr_string(tptr)); 265598527Sfenner 2656162021Ssam tptr += sizeof(struct in6_addr); 2657162021Ssam tmp -= sizeof(struct in6_addr); 265898527Sfenner } 265998527Sfenner break; 266098527Sfenner#endif 2661146778Ssam case ISIS_TLV_AUTH: 2662127675Sbms if (!TTEST2(*tptr, 1)) 266398527Sfenner goto trunctlv; 2664127675Sbms 2665127675Sbms printf("\n\t %s: ", 2666127675Sbms tok2str(isis_subtlv_auth_values, 2667127675Sbms "unknown Authentication type 0x%02x", 2668127675Sbms *tptr)); 2669127675Sbms 2670127675Sbms switch (*tptr) { 2671146778Ssam case ISIS_SUBTLV_AUTH_SIMPLE: 2672127675Sbms for(i=1;i<tlv_len;i++) { 2673127675Sbms if (!TTEST2(*(tptr+i), 1)) 267498527Sfenner goto trunctlv; 2675127675Sbms printf("%c",*(tptr+i)); 267698527Sfenner } 2677127675Sbms break; 2678146778Ssam case ISIS_SUBTLV_AUTH_MD5: 2679127675Sbms for(i=1;i<tlv_len;i++) { 2680127675Sbms if (!TTEST2(*(tptr+i), 1)) 268198527Sfenner goto trunctlv; 2682127675Sbms printf("%02x",*(tptr+i)); 268398527Sfenner } 2684146778Ssam if (tlv_len != ISIS_SUBTLV_AUTH_MD5_LEN+1) 2685127675Sbms printf(", (malformed subTLV) "); 2686214478Srpaulo 2687214478Srpaulo#ifdef HAVE_LIBCRYPTO 2688214478Srpaulo sigcheck = signature_verify(optr, length, 2689214478Srpaulo (unsigned char *)tptr + 1); 2690214478Srpaulo#else 2691214478Srpaulo sigcheck = CANT_CHECK_SIGNATURE; 2692214478Srpaulo#endif 2693214478Srpaulo printf(" (%s)", tok2str(signature_check_values, "Unknown", sigcheck)); 2694214478Srpaulo 2695127675Sbms break; 2696236192Sdelphij case ISIS_SUBTLV_AUTH_GENERIC: 2697236192Sdelphij key_id = EXTRACT_16BITS((tptr+1)); 2698236192Sdelphij printf("%u, password: ", key_id); 2699236192Sdelphij for(i=1 + sizeof(u_int16_t);i<tlv_len;i++) { 2700236192Sdelphij if (!TTEST2(*(tptr+i), 1)) 2701236192Sdelphij goto trunctlv; 2702236192Sdelphij printf("%02x",*(tptr+i)); 2703236192Sdelphij } 2704236192Sdelphij break; 2705146778Ssam case ISIS_SUBTLV_AUTH_PRIVATE: 2706127675Sbms default: 2707127675Sbms if(!print_unknown_data(tptr+1,"\n\t\t ",tlv_len-1)) 2708127675Sbms return(0); 2709127675Sbms break; 271098527Sfenner } 271198527Sfenner break; 271298527Sfenner 2713146778Ssam case ISIS_TLV_PTP_ADJ: 2714127675Sbms tlv_ptp_adj = (const struct isis_tlv_ptp_adj *)tptr; 2715127675Sbms if(tmp>=1) { 2716127675Sbms if (!TTEST2(*tptr, 1)) 271798527Sfenner goto trunctlv; 2718127675Sbms printf("\n\t Adjacency State: %s (%u)", 2719127675Sbms tok2str(isis_ptp_adjancey_values, "unknown", *tptr), 2720127675Sbms *tptr); 2721127675Sbms tmp--; 272298527Sfenner } 2723127675Sbms if(tmp>sizeof(tlv_ptp_adj->extd_local_circuit_id)) { 2724127675Sbms if (!TTEST2(tlv_ptp_adj->extd_local_circuit_id, 2725127675Sbms sizeof(tlv_ptp_adj->extd_local_circuit_id))) 272698527Sfenner goto trunctlv; 2727127675Sbms printf("\n\t Extended Local circuit-ID: 0x%08x", 2728127675Sbms EXTRACT_32BITS(tlv_ptp_adj->extd_local_circuit_id)); 2729127675Sbms tmp-=sizeof(tlv_ptp_adj->extd_local_circuit_id); 273098527Sfenner } 2731127675Sbms if(tmp>=SYSTEM_ID_LEN) { 2732127675Sbms if (!TTEST2(tlv_ptp_adj->neighbor_sysid, SYSTEM_ID_LEN)) 273398527Sfenner goto trunctlv; 2734127675Sbms printf("\n\t Neighbor System-ID: %s", 2735127675Sbms isis_print_id(tlv_ptp_adj->neighbor_sysid,SYSTEM_ID_LEN)); 2736127675Sbms tmp-=SYSTEM_ID_LEN; 273798527Sfenner } 2738127675Sbms if(tmp>=sizeof(tlv_ptp_adj->neighbor_extd_local_circuit_id)) { 2739127675Sbms if (!TTEST2(tlv_ptp_adj->neighbor_extd_local_circuit_id, 2740127675Sbms sizeof(tlv_ptp_adj->neighbor_extd_local_circuit_id))) 274198527Sfenner goto trunctlv; 2742127675Sbms printf("\n\t Neighbor Extended Local circuit-ID: 0x%08x", 2743127675Sbms EXTRACT_32BITS(tlv_ptp_adj->neighbor_extd_local_circuit_id)); 274498527Sfenner } 274532149Spst break; 274698527Sfenner 2747146778Ssam case ISIS_TLV_PROTOCOLS: 2748127675Sbms printf("\n\t NLPID(s): "); 2749127675Sbms while (tmp>0) { 2750127675Sbms if (!TTEST2(*(tptr), 1)) 275198527Sfenner goto trunctlv; 2752127675Sbms printf("%s (0x%02x)", 2753146778Ssam tok2str(nlpid_values, 2754127675Sbms "unknown", 2755127675Sbms *tptr), 2756127675Sbms *tptr); 2757127675Sbms if (tmp>1) /* further NPLIDs ? - put comma */ 275898527Sfenner printf(", "); 2759127675Sbms tptr++; 2760127675Sbms tmp--; 276198527Sfenner } 276232149Spst break; 276398527Sfenner 2764252283Sdelphij case ISIS_TLV_MT_PORT_CAP: 2765252283Sdelphij { 2766252283Sdelphij if (!TTEST2(*(tptr), 2)) 2767252283Sdelphij goto trunctlv; 2768252283Sdelphij 2769252283Sdelphij printf("\n\t RES: %d, MTID(s): %d", 2770252283Sdelphij (EXTRACT_16BITS (tptr) >> 12), 2771252283Sdelphij (EXTRACT_16BITS (tptr) & 0x0fff)); 2772252283Sdelphij 2773252283Sdelphij tmp = tmp-2; 2774252283Sdelphij tptr = tptr+2; 2775252283Sdelphij 2776252283Sdelphij if (tmp) 2777252283Sdelphij isis_print_mt_port_cap_subtlv (tptr, tmp); 2778252283Sdelphij 2779252283Sdelphij break; 2780252283Sdelphij } 2781252283Sdelphij 2782252283Sdelphij case ISIS_TLV_MT_CAPABILITY: 2783252283Sdelphij 2784252283Sdelphij if (!TTEST2(*(tptr), 2)) 2785252283Sdelphij goto trunctlv; 2786252283Sdelphij 2787252283Sdelphij printf("\n\t O: %d, RES: %d, MTID(s): %d", 2788252283Sdelphij (EXTRACT_16BITS(tptr) >> 15) & 0x01, 2789252283Sdelphij (EXTRACT_16BITS(tptr) >> 12) & 0x07, 2790252283Sdelphij EXTRACT_16BITS(tptr) & 0x0fff); 2791252283Sdelphij 2792252283Sdelphij tmp = tmp-2; 2793252283Sdelphij tptr = tptr+2; 2794252283Sdelphij 2795252283Sdelphij if (tmp) 2796252283Sdelphij isis_print_mt_capability_subtlv (tptr, tmp); 2797252283Sdelphij 2798252283Sdelphij break; 2799252283Sdelphij 2800146778Ssam case ISIS_TLV_TE_ROUTER_ID: 2801162021Ssam if (!TTEST2(*pptr, sizeof(struct in_addr))) 280298527Sfenner goto trunctlv; 2803127675Sbms printf("\n\t Traffic Engineering Router ID: %s", ipaddr_string(pptr)); 280498527Sfenner break; 280598527Sfenner 2806146778Ssam case ISIS_TLV_IPADDR: 2807162021Ssam while (tmp>=sizeof(struct in_addr)) { 2808162021Ssam if (!TTEST2(*tptr, sizeof(struct in_addr))) 280998527Sfenner goto trunctlv; 2810127675Sbms printf("\n\t IPv4 interface address: %s", ipaddr_string(tptr)); 2811162021Ssam tptr += sizeof(struct in_addr); 2812162021Ssam tmp -= sizeof(struct in_addr); 281398527Sfenner } 281432149Spst break; 281598527Sfenner 2816146778Ssam case ISIS_TLV_HOSTNAME: 2817127675Sbms printf("\n\t Hostname: "); 2818127675Sbms while (tmp>0) { 2819127675Sbms if (!TTEST2(*tptr, 1)) 282098527Sfenner goto trunctlv; 2821127675Sbms printf("%c",*tptr++); 2822127675Sbms tmp--; 282398527Sfenner } 282498527Sfenner break; 282598527Sfenner 2826146778Ssam case ISIS_TLV_SHARED_RISK_GROUP: 2827147904Ssam if (tmp < NODE_ID_LEN) 2828147904Ssam break; 2829127675Sbms if (!TTEST2(*tptr, NODE_ID_LEN)) 2830127675Sbms goto trunctlv; 2831127675Sbms printf("\n\t IS Neighbor: %s", isis_print_id(tptr, NODE_ID_LEN)); 2832127675Sbms tptr+=(NODE_ID_LEN); 2833127675Sbms tmp-=(NODE_ID_LEN); 2834127675Sbms 2835147904Ssam if (tmp < 1) 2836147904Ssam break; 2837127675Sbms if (!TTEST2(*tptr, 1)) 2838127675Sbms goto trunctlv; 2839127675Sbms printf(", Flags: [%s]", ISIS_MASK_TLV_SHARED_RISK_GROUP(*tptr++) ? "numbered" : "unnumbered"); 2840127675Sbms tmp--; 2841127675Sbms 2842162021Ssam if (tmp < sizeof(struct in_addr)) 2843147904Ssam break; 2844162021Ssam if (!TTEST2(*tptr,sizeof(struct in_addr))) 2845127675Sbms goto trunctlv; 2846127675Sbms printf("\n\t IPv4 interface address: %s", ipaddr_string(tptr)); 2847162021Ssam tptr+=sizeof(struct in_addr); 2848162021Ssam tmp-=sizeof(struct in_addr); 2849127675Sbms 2850162021Ssam if (tmp < sizeof(struct in_addr)) 2851147904Ssam break; 2852162021Ssam if (!TTEST2(*tptr,sizeof(struct in_addr))) 2853127675Sbms goto trunctlv; 2854127675Sbms printf("\n\t IPv4 neighbor address: %s", ipaddr_string(tptr)); 2855162021Ssam tptr+=sizeof(struct in_addr); 2856162021Ssam tmp-=sizeof(struct in_addr); 2857127675Sbms 2858147904Ssam while (tmp>=4) { 2859127675Sbms if (!TTEST2(*tptr, 4)) 2860127675Sbms goto trunctlv; 2861127675Sbms printf("\n\t Link-ID: 0x%08x", EXTRACT_32BITS(tptr)); 2862127675Sbms tptr+=4; 2863127675Sbms tmp-=4; 2864127675Sbms } 2865127675Sbms break; 2866127675Sbms 2867146778Ssam case ISIS_TLV_LSP: 2868127675Sbms tlv_lsp = (const struct isis_tlv_lsp *)tptr; 2869147904Ssam while(tmp>=sizeof(struct isis_tlv_lsp)) { 2870127675Sbms if (!TTEST((tlv_lsp->lsp_id)[LSP_ID_LEN-1])) 287198527Sfenner goto trunctlv; 2872127675Sbms printf("\n\t lsp-id: %s", 2873127675Sbms isis_print_id(tlv_lsp->lsp_id, LSP_ID_LEN)); 287498527Sfenner if (!TTEST2(tlv_lsp->sequence_number, 4)) 287598527Sfenner goto trunctlv; 2876127675Sbms printf(", seq: 0x%08x",EXTRACT_32BITS(tlv_lsp->sequence_number)); 287798527Sfenner if (!TTEST2(tlv_lsp->remaining_lifetime, 2)) 287898527Sfenner goto trunctlv; 2879127675Sbms printf(", lifetime: %5ds",EXTRACT_16BITS(tlv_lsp->remaining_lifetime)); 288098527Sfenner if (!TTEST2(tlv_lsp->checksum, 2)) 288198527Sfenner goto trunctlv; 2882127675Sbms printf(", chksum: 0x%04x",EXTRACT_16BITS(tlv_lsp->checksum)); 2883127675Sbms tmp-=sizeof(struct isis_tlv_lsp); 288498527Sfenner tlv_lsp++; 288598527Sfenner } 288698527Sfenner break; 288798527Sfenner 2888146778Ssam case ISIS_TLV_CHECKSUM: 2889162021Ssam if (tmp < ISIS_TLV_CHECKSUM_MINLEN) 2890147904Ssam break; 2891162021Ssam if (!TTEST2(*tptr, ISIS_TLV_CHECKSUM_MINLEN)) 289298527Sfenner goto trunctlv; 2893127675Sbms printf("\n\t checksum: 0x%04x ", EXTRACT_16BITS(tptr)); 2894127675Sbms /* do not attempt to verify the checksum if it is zero 2895127675Sbms * most likely a HMAC-MD5 TLV is also present and 2896127675Sbms * to avoid conflicts the checksum TLV is zeroed. 2897127675Sbms * see rfc3358 for details 2898127675Sbms */ 2899190207Srpaulo osi_print_cksum(optr, EXTRACT_16BITS(tptr), tptr-optr, length); 290098527Sfenner break; 290198527Sfenner 2902146778Ssam case ISIS_TLV_MT_SUPPORTED: 2903162021Ssam if (tmp < ISIS_TLV_MT_SUPPORTED_MINLEN) 2904162021Ssam break; 2905127675Sbms while (tmp>1) { 2906127675Sbms /* length can only be a multiple of 2, otherwise there is 290798527Sfenner something broken -> so decode down until length is 1 */ 2908127675Sbms if (tmp!=1) { 2909127675Sbms mt_len = isis_print_mtid(tptr, "\n\t "); 2910127675Sbms if (mt_len == 0) /* did something go wrong ? */ 2911127675Sbms goto trunctlv; 2912127675Sbms tptr+=mt_len; 2913127675Sbms tmp-=mt_len; 291498527Sfenner } else { 2915127675Sbms printf("\n\t malformed MT-ID"); 291698527Sfenner break; 291798527Sfenner } 291898527Sfenner } 291998527Sfenner break; 292098527Sfenner 2921146778Ssam case ISIS_TLV_RESTART_SIGNALING: 2922162021Ssam /* first attempt to decode the flags */ 2923162021Ssam if (tmp < ISIS_TLV_RESTART_SIGNALING_FLAGLEN) 2924162021Ssam break; 2925162021Ssam if (!TTEST2(*tptr, ISIS_TLV_RESTART_SIGNALING_FLAGLEN)) 2926127675Sbms goto trunctlv; 2927162021Ssam printf("\n\t Flags [%s]", 2928162021Ssam bittok2str(isis_restart_flag_values, "none", *tptr)); 2929162021Ssam tptr+=ISIS_TLV_RESTART_SIGNALING_FLAGLEN; 2930162021Ssam tmp-=ISIS_TLV_RESTART_SIGNALING_FLAGLEN; 2931162021Ssam 2932162021Ssam /* is there anything other than the flags field? */ 2933162021Ssam if (tmp == 0) 2934162021Ssam break; 2935162021Ssam 2936162021Ssam if (tmp < ISIS_TLV_RESTART_SIGNALING_HOLDTIMELEN) 2937162021Ssam break; 2938162021Ssam if (!TTEST2(*tptr, ISIS_TLV_RESTART_SIGNALING_HOLDTIMELEN)) 2939162021Ssam goto trunctlv; 2940162021Ssam 2941172686Smlaier printf(", Remaining holding time %us", EXTRACT_16BITS(tptr)); 2942162021Ssam tptr+=ISIS_TLV_RESTART_SIGNALING_HOLDTIMELEN; 2943162021Ssam tmp-=ISIS_TLV_RESTART_SIGNALING_HOLDTIMELEN; 2944162021Ssam 2945162021Ssam /* is there an additional sysid field present ?*/ 2946147904Ssam if (tmp == SYSTEM_ID_LEN) { 2947147904Ssam if (!TTEST2(*tptr, SYSTEM_ID_LEN)) 2948147904Ssam goto trunctlv; 2949147904Ssam printf(", for %s",isis_print_id(tptr,SYSTEM_ID_LEN)); 2950162021Ssam } 295198527Sfenner break; 295298527Sfenner 2953146778Ssam case ISIS_TLV_IDRP_INFO: 2954162021Ssam if (tmp < ISIS_TLV_IDRP_INFO_MINLEN) 2955147904Ssam break; 2956162021Ssam if (!TTEST2(*tptr, ISIS_TLV_IDRP_INFO_MINLEN)) 2957127675Sbms goto trunctlv; 2958127675Sbms printf("\n\t Inter-Domain Information Type: %s", 2959127675Sbms tok2str(isis_subtlv_idrp_values, 2960127675Sbms "Unknown (0x%02x)", 2961127675Sbms *tptr)); 2962127675Sbms switch (*tptr++) { 2963146778Ssam case ISIS_SUBTLV_IDRP_ASN: 2964127675Sbms if (!TTEST2(*tptr, 2)) /* fetch AS number */ 2965127675Sbms goto trunctlv; 2966127675Sbms printf("AS Number: %u",EXTRACT_16BITS(tptr)); 2967127675Sbms break; 2968146778Ssam case ISIS_SUBTLV_IDRP_LOCAL: 2969146778Ssam case ISIS_SUBTLV_IDRP_RES: 2970127675Sbms default: 2971127675Sbms if(!print_unknown_data(tptr,"\n\t ",tlv_len-1)) 2972127675Sbms return(0); 2973127675Sbms break; 2974127675Sbms } 2975127675Sbms break; 2976127675Sbms 2977146778Ssam case ISIS_TLV_LSP_BUFFERSIZE: 2978162021Ssam if (tmp < ISIS_TLV_LSP_BUFFERSIZE_MINLEN) 2979147904Ssam break; 2980162021Ssam if (!TTEST2(*tptr, ISIS_TLV_LSP_BUFFERSIZE_MINLEN)) 2981127675Sbms goto trunctlv; 2982127675Sbms printf("\n\t LSP Buffersize: %u",EXTRACT_16BITS(tptr)); 2983127675Sbms break; 2984127675Sbms 2985146778Ssam case ISIS_TLV_PART_DIS: 2986127675Sbms while (tmp >= SYSTEM_ID_LEN) { 2987127675Sbms if (!TTEST2(*tptr, SYSTEM_ID_LEN)) 2988127675Sbms goto trunctlv; 2989127675Sbms printf("\n\t %s",isis_print_id(tptr,SYSTEM_ID_LEN)); 2990127675Sbms tptr+=SYSTEM_ID_LEN; 2991127675Sbms tmp-=SYSTEM_ID_LEN; 2992127675Sbms } 2993127675Sbms break; 2994127675Sbms 2995146778Ssam case ISIS_TLV_PREFIX_NEIGH: 2996147904Ssam if (tmp < sizeof(struct isis_metric_block)) 2997147904Ssam break; 2998127675Sbms if (!TTEST2(*tptr, sizeof(struct isis_metric_block))) 2999127675Sbms goto trunctlv; 3000127675Sbms printf("\n\t Metric Block"); 3001127675Sbms isis_print_metric_block((const struct isis_metric_block *)tptr); 3002127675Sbms tptr+=sizeof(struct isis_metric_block); 3003127675Sbms tmp-=sizeof(struct isis_metric_block); 3004127675Sbms 3005127675Sbms while(tmp>0) { 3006127675Sbms if (!TTEST2(*tptr, 1)) 3007127675Sbms goto trunctlv; 3008127675Sbms prefix_len=*tptr++; /* read out prefix length in semioctets*/ 3009147904Ssam if (prefix_len < 2) { 3010147904Ssam printf("\n\t\tAddress: prefix length %u < 2", prefix_len); 3011147904Ssam break; 3012147904Ssam } 3013127675Sbms tmp--; 3014147904Ssam if (tmp < prefix_len/2) 3015147904Ssam break; 3016127675Sbms if (!TTEST2(*tptr, prefix_len/2)) 3017127675Sbms goto trunctlv; 3018127675Sbms printf("\n\t\tAddress: %s/%u", 3019146778Ssam isonsap_string(tptr,prefix_len/2), 3020127675Sbms prefix_len*4); 3021127675Sbms tptr+=prefix_len/2; 3022127675Sbms tmp-=prefix_len/2; 3023127675Sbms } 3024127675Sbms break; 3025127675Sbms 3026146778Ssam case ISIS_TLV_IIH_SEQNR: 3027162021Ssam if (tmp < ISIS_TLV_IIH_SEQNR_MINLEN) 3028147904Ssam break; 3029162021Ssam if (!TTEST2(*tptr, ISIS_TLV_IIH_SEQNR_MINLEN)) /* check if four bytes are on the wire */ 3030127675Sbms goto trunctlv; 3031127675Sbms printf("\n\t Sequence number: %u", EXTRACT_32BITS(tptr) ); 3032127675Sbms break; 3033127675Sbms 3034146778Ssam case ISIS_TLV_VENDOR_PRIVATE: 3035162021Ssam if (tmp < ISIS_TLV_VENDOR_PRIVATE_MINLEN) 3036147904Ssam break; 3037162021Ssam if (!TTEST2(*tptr, ISIS_TLV_VENDOR_PRIVATE_MINLEN)) /* check if enough byte for a full oui */ 3038127675Sbms goto trunctlv; 3039146778Ssam vendor_id = EXTRACT_24BITS(tptr); 3040146778Ssam printf("\n\t Vendor: %s (%u)", 3041146778Ssam tok2str(oui_values,"Unknown",vendor_id), 3042146778Ssam vendor_id); 3043127675Sbms tptr+=3; 3044127675Sbms tmp-=3; 3045127675Sbms if (tmp > 0) /* hexdump the rest */ 3046127675Sbms if(!print_unknown_data(tptr,"\n\t\t",tmp)) 3047127675Sbms return(0); 3048127675Sbms break; 3049127675Sbms /* 3050127675Sbms * FIXME those are the defined TLVs that lack a decoder 3051127675Sbms * you are welcome to contribute code ;-) 3052127675Sbms */ 3053127675Sbms 3054146778Ssam case ISIS_TLV_DECNET_PHASE4: 3055146778Ssam case ISIS_TLV_LUCENT_PRIVATE: 3056146778Ssam case ISIS_TLV_IPAUTH: 3057146778Ssam case ISIS_TLV_NORTEL_PRIVATE1: 3058146778Ssam case ISIS_TLV_NORTEL_PRIVATE2: 3059127675Sbms 306017688Spst default: 3061127675Sbms if (vflag <= 1) { 3062127675Sbms if(!print_unknown_data(pptr,"\n\t\t",tlv_len)) 3063127675Sbms return(0); 3064127675Sbms } 306517688Spst break; 306617688Spst } 3067127675Sbms /* do we want to see an additionally hexdump ? */ 3068127675Sbms if (vflag> 1) { 3069127675Sbms if(!print_unknown_data(pptr,"\n\t ",tlv_len)) 3070127675Sbms return(0); 3071127675Sbms } 307217688Spst 3073127675Sbms pptr += tlv_len; 3074127675Sbms packet_len -= tlv_len; 307517688Spst } 307617688Spst 307717688Spst if (packet_len != 0) { 3078127675Sbms printf("\n\t %u straggler bytes", packet_len); 307917688Spst } 308098527Sfenner return (1); 308198527Sfenner 3082127675Sbms trunc: 308398527Sfenner fputs("[|isis]", stdout); 308498527Sfenner return (1); 308598527Sfenner 3086127675Sbms trunctlv: 3087127675Sbms printf("\n\t\t packet exceeded snapshot"); 308817688Spst return(1); 308917688Spst} 309017688Spst 3091190207Srpaulostatic void 3092190207Srpauloosi_print_cksum (const u_int8_t *pptr, u_int16_t checksum, 3093190207Srpaulo u_int checksum_offset, u_int length) 309417680Spst{ 3095190207Srpaulo u_int16_t calculated_checksum; 309617680Spst 3097190207Srpaulo /* do not attempt to verify the checksum if it is zero */ 3098190207Srpaulo if (!checksum) { 3099190207Srpaulo printf("(unverified)"); 3100190207Srpaulo } else { 3101190207Srpaulo calculated_checksum = create_osi_cksum(pptr, checksum_offset, length); 3102190207Srpaulo if (checksum == calculated_checksum) { 3103190207Srpaulo printf(" (correct)"); 3104190207Srpaulo } else { 3105190207Srpaulo printf(" (incorrect should be 0x%04x)", calculated_checksum); 3106190207Srpaulo } 3107190207Srpaulo } 310817680Spst} 3109146778Ssam 3110146778Ssam/* 3111146778Ssam * Local Variables: 3112146778Ssam * c-style: whitesmith 3113146778Ssam * c-basic-offset: 8 3114146778Ssam * End: 3115146778Ssam */ 3116