The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 1992, 1993, 1994, 1995, 1996 |
| 3 | * The Regents of the University of California. All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that: (1) source code distributions |
| 7 | * retain the above copyright notice and this paragraph in its entirety, (2) |
| 8 | * distributions including binary code include the above copyright notice and |
| 9 | * this paragraph in its entirety in the documentation or other materials |
| 10 | * provided with the distribution, and (3) all advertising materials mentioning |
| 11 | * features or use of this software display the following acknowledgement: |
| 12 | * ``This product includes software developed by the University of California, |
| 13 | * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of |
| 14 | * the University nor the names of its contributors may be used to endorse |
| 15 | * or promote products derived from this software without specific prior |
| 16 | * written permission. |
| 17 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED |
| 18 | * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF |
| 19 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| 20 | * |
| 21 | * Original code by Matt Thomas, Digital Equipment Corporation |
| 22 | * |
| 23 | * Extensively modified by Hannes Gredler (hannes@juniper.net) for more |
| 24 | * complete IS-IS & CLNP support. |
| 25 | */ |
| 26 | |
| 27 | #ifndef lint |
| 28 | static const char rcsid[] _U_ = |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 29 | "@(#) $Header: /tcpdump/master/tcpdump/print-isoclns.c,v 1.165 2008-08-16 13:38:15 hannes Exp $ (LBL)"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 30 | #endif |
| 31 | |
| 32 | #ifdef HAVE_CONFIG_H |
| 33 | #include "config.h" |
| 34 | #endif |
| 35 | |
| 36 | #include <tcpdump-stdinc.h> |
| 37 | |
| 38 | #include <stdio.h> |
| 39 | #include <string.h> |
| 40 | |
| 41 | #include "interface.h" |
| 42 | #include "addrtoname.h" |
| 43 | #include "ethertype.h" |
| 44 | #include "ether.h" |
| 45 | #include "nlpid.h" |
| 46 | #include "extract.h" |
| 47 | #include "gmpls.h" |
| 48 | #include "oui.h" |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 49 | #include "signature.h" |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 50 | |
| 51 | /* |
| 52 | * IS-IS is defined in ISO 10589. Look there for protocol definitions. |
| 53 | */ |
| 54 | |
| 55 | #define SYSTEM_ID_LEN ETHER_ADDR_LEN |
| 56 | #define NODE_ID_LEN SYSTEM_ID_LEN+1 |
| 57 | #define LSP_ID_LEN SYSTEM_ID_LEN+2 |
| 58 | |
| 59 | #define ISIS_VERSION 1 |
| 60 | #define ESIS_VERSION 1 |
| 61 | #define CLNP_VERSION 1 |
| 62 | |
| 63 | #define ISIS_PDU_TYPE_MASK 0x1F |
| 64 | #define ESIS_PDU_TYPE_MASK 0x1F |
| 65 | #define CLNP_PDU_TYPE_MASK 0x1F |
| 66 | #define CLNP_FLAG_MASK 0xE0 |
| 67 | #define ISIS_LAN_PRIORITY_MASK 0x7F |
| 68 | |
| 69 | #define ISIS_PDU_L1_LAN_IIH 15 |
| 70 | #define ISIS_PDU_L2_LAN_IIH 16 |
| 71 | #define ISIS_PDU_PTP_IIH 17 |
| 72 | #define ISIS_PDU_L1_LSP 18 |
| 73 | #define ISIS_PDU_L2_LSP 20 |
| 74 | #define ISIS_PDU_L1_CSNP 24 |
| 75 | #define ISIS_PDU_L2_CSNP 25 |
| 76 | #define ISIS_PDU_L1_PSNP 26 |
| 77 | #define ISIS_PDU_L2_PSNP 27 |
| 78 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 79 | static const struct tok isis_pdu_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 80 | { ISIS_PDU_L1_LAN_IIH, "L1 Lan IIH"}, |
| 81 | { ISIS_PDU_L2_LAN_IIH, "L2 Lan IIH"}, |
| 82 | { ISIS_PDU_PTP_IIH, "p2p IIH"}, |
| 83 | { ISIS_PDU_L1_LSP, "L1 LSP"}, |
| 84 | { ISIS_PDU_L2_LSP, "L2 LSP"}, |
| 85 | { ISIS_PDU_L1_CSNP, "L1 CSNP"}, |
| 86 | { ISIS_PDU_L2_CSNP, "L2 CSNP"}, |
| 87 | { ISIS_PDU_L1_PSNP, "L1 PSNP"}, |
| 88 | { ISIS_PDU_L2_PSNP, "L2 PSNP"}, |
| 89 | { 0, NULL} |
| 90 | }; |
| 91 | |
| 92 | /* |
| 93 | * A TLV is a tuple of a type, length and a value and is normally used for |
| 94 | * encoding information in all sorts of places. This is an enumeration of |
| 95 | * the well known types. |
| 96 | * |
| 97 | * list taken from rfc3359 plus some memory from veterans ;-) |
| 98 | */ |
| 99 | |
| 100 | #define ISIS_TLV_AREA_ADDR 1 /* iso10589 */ |
| 101 | #define ISIS_TLV_IS_REACH 2 /* iso10589 */ |
| 102 | #define ISIS_TLV_ESNEIGH 3 /* iso10589 */ |
| 103 | #define ISIS_TLV_PART_DIS 4 /* iso10589 */ |
| 104 | #define ISIS_TLV_PREFIX_NEIGH 5 /* iso10589 */ |
| 105 | #define ISIS_TLV_ISNEIGH 6 /* iso10589 */ |
| 106 | #define ISIS_TLV_ISNEIGH_VARLEN 7 /* iso10589 */ |
| 107 | #define ISIS_TLV_PADDING 8 /* iso10589 */ |
| 108 | #define ISIS_TLV_LSP 9 /* iso10589 */ |
| 109 | #define ISIS_TLV_AUTH 10 /* iso10589, rfc3567 */ |
| 110 | #define ISIS_TLV_CHECKSUM 12 /* rfc3358 */ |
| 111 | #define ISIS_TLV_CHECKSUM_MINLEN 2 |
| 112 | #define ISIS_TLV_LSP_BUFFERSIZE 14 /* iso10589 rev2 */ |
| 113 | #define ISIS_TLV_LSP_BUFFERSIZE_MINLEN 2 |
| 114 | #define ISIS_TLV_EXT_IS_REACH 22 /* draft-ietf-isis-traffic-05 */ |
| 115 | #define ISIS_TLV_IS_ALIAS_ID 24 /* draft-ietf-isis-ext-lsp-frags-02 */ |
| 116 | #define ISIS_TLV_DECNET_PHASE4 42 |
| 117 | #define ISIS_TLV_LUCENT_PRIVATE 66 |
| 118 | #define ISIS_TLV_INT_IP_REACH 128 /* rfc1195, rfc2966 */ |
| 119 | #define ISIS_TLV_PROTOCOLS 129 /* rfc1195 */ |
| 120 | #define ISIS_TLV_EXT_IP_REACH 130 /* rfc1195, rfc2966 */ |
| 121 | #define ISIS_TLV_IDRP_INFO 131 /* rfc1195 */ |
| 122 | #define ISIS_TLV_IDRP_INFO_MINLEN 1 |
| 123 | #define ISIS_TLV_IPADDR 132 /* rfc1195 */ |
| 124 | #define ISIS_TLV_IPAUTH 133 /* rfc1195 */ |
| 125 | #define ISIS_TLV_TE_ROUTER_ID 134 /* draft-ietf-isis-traffic-05 */ |
| 126 | #define ISIS_TLV_EXTD_IP_REACH 135 /* draft-ietf-isis-traffic-05 */ |
| 127 | #define ISIS_TLV_HOSTNAME 137 /* rfc2763 */ |
| 128 | #define ISIS_TLV_SHARED_RISK_GROUP 138 /* draft-ietf-isis-gmpls-extensions */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 129 | #define ISIS_TLV_MT_PORT_CAP 143 /* rfc6165 */ |
| 130 | #define ISIS_TLV_MT_CAPABILITY 144 /* rfc6329 */ |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 131 | #define ISIS_TLV_NORTEL_PRIVATE1 176 |
| 132 | #define ISIS_TLV_NORTEL_PRIVATE2 177 |
| 133 | #define ISIS_TLV_RESTART_SIGNALING 211 /* rfc3847 */ |
| 134 | #define ISIS_TLV_RESTART_SIGNALING_FLAGLEN 1 |
| 135 | #define ISIS_TLV_RESTART_SIGNALING_HOLDTIMELEN 2 |
| 136 | #define ISIS_TLV_MT_IS_REACH 222 /* draft-ietf-isis-wg-multi-topology-05 */ |
| 137 | #define ISIS_TLV_MT_SUPPORTED 229 /* draft-ietf-isis-wg-multi-topology-05 */ |
| 138 | #define ISIS_TLV_MT_SUPPORTED_MINLEN 2 |
| 139 | #define ISIS_TLV_IP6ADDR 232 /* draft-ietf-isis-ipv6-02 */ |
| 140 | #define ISIS_TLV_MT_IP_REACH 235 /* draft-ietf-isis-wg-multi-topology-05 */ |
| 141 | #define ISIS_TLV_IP6_REACH 236 /* draft-ietf-isis-ipv6-02 */ |
| 142 | #define ISIS_TLV_MT_IP6_REACH 237 /* draft-ietf-isis-wg-multi-topology-05 */ |
| 143 | #define ISIS_TLV_PTP_ADJ 240 /* rfc3373 */ |
| 144 | #define ISIS_TLV_IIH_SEQNR 241 /* draft-shen-isis-iih-sequence-00 */ |
| 145 | #define ISIS_TLV_IIH_SEQNR_MINLEN 4 |
| 146 | #define ISIS_TLV_VENDOR_PRIVATE 250 /* draft-ietf-isis-experimental-tlv-01 */ |
| 147 | #define ISIS_TLV_VENDOR_PRIVATE_MINLEN 3 |
| 148 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 149 | static const struct tok isis_tlv_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 150 | { ISIS_TLV_AREA_ADDR, "Area address(es)"}, |
| 151 | { ISIS_TLV_IS_REACH, "IS Reachability"}, |
| 152 | { ISIS_TLV_ESNEIGH, "ES Neighbor(s)"}, |
| 153 | { ISIS_TLV_PART_DIS, "Partition DIS"}, |
| 154 | { ISIS_TLV_PREFIX_NEIGH, "Prefix Neighbors"}, |
| 155 | { ISIS_TLV_ISNEIGH, "IS Neighbor(s)"}, |
| 156 | { ISIS_TLV_ISNEIGH_VARLEN, "IS Neighbor(s) (variable length)"}, |
| 157 | { ISIS_TLV_PADDING, "Padding"}, |
| 158 | { ISIS_TLV_LSP, "LSP entries"}, |
| 159 | { ISIS_TLV_AUTH, "Authentication"}, |
| 160 | { ISIS_TLV_CHECKSUM, "Checksum"}, |
| 161 | { ISIS_TLV_LSP_BUFFERSIZE, "LSP Buffersize"}, |
| 162 | { ISIS_TLV_EXT_IS_REACH, "Extended IS Reachability"}, |
| 163 | { ISIS_TLV_IS_ALIAS_ID, "IS Alias ID"}, |
| 164 | { ISIS_TLV_DECNET_PHASE4, "DECnet Phase IV"}, |
| 165 | { ISIS_TLV_LUCENT_PRIVATE, "Lucent Proprietary"}, |
| 166 | { ISIS_TLV_INT_IP_REACH, "IPv4 Internal Reachability"}, |
| 167 | { ISIS_TLV_PROTOCOLS, "Protocols supported"}, |
| 168 | { ISIS_TLV_EXT_IP_REACH, "IPv4 External Reachability"}, |
| 169 | { ISIS_TLV_IDRP_INFO, "Inter-Domain Information Type"}, |
| 170 | { ISIS_TLV_IPADDR, "IPv4 Interface address(es)"}, |
| 171 | { ISIS_TLV_IPAUTH, "IPv4 authentication (deprecated)"}, |
| 172 | { ISIS_TLV_TE_ROUTER_ID, "Traffic Engineering Router ID"}, |
| 173 | { ISIS_TLV_EXTD_IP_REACH, "Extended IPv4 Reachability"}, |
| 174 | { ISIS_TLV_SHARED_RISK_GROUP, "Shared Risk Link Group"}, |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 175 | { ISIS_TLV_MT_PORT_CAP, "Multi-Topology-Aware Port Capability"}, |
| 176 | { ISIS_TLV_MT_CAPABILITY, "Multi-Topology Capability"}, |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 177 | { ISIS_TLV_NORTEL_PRIVATE1, "Nortel Proprietary"}, |
| 178 | { ISIS_TLV_NORTEL_PRIVATE2, "Nortel Proprietary"}, |
| 179 | { ISIS_TLV_HOSTNAME, "Hostname"}, |
| 180 | { ISIS_TLV_RESTART_SIGNALING, "Restart Signaling"}, |
| 181 | { ISIS_TLV_MT_IS_REACH, "Multi Topology IS Reachability"}, |
| 182 | { ISIS_TLV_MT_SUPPORTED, "Multi Topology"}, |
| 183 | { ISIS_TLV_IP6ADDR, "IPv6 Interface address(es)"}, |
| 184 | { ISIS_TLV_MT_IP_REACH, "Multi-Topology IPv4 Reachability"}, |
| 185 | { ISIS_TLV_IP6_REACH, "IPv6 reachability"}, |
| 186 | { ISIS_TLV_MT_IP6_REACH, "Multi-Topology IP6 Reachability"}, |
| 187 | { ISIS_TLV_PTP_ADJ, "Point-to-point Adjacency State"}, |
| 188 | { ISIS_TLV_IIH_SEQNR, "Hello PDU Sequence Number"}, |
| 189 | { ISIS_TLV_VENDOR_PRIVATE, "Vendor Private"}, |
| 190 | { 0, NULL } |
| 191 | }; |
| 192 | |
| 193 | #define ESIS_OPTION_PROTOCOLS 129 |
| 194 | #define ESIS_OPTION_QOS_MAINTENANCE 195 /* iso9542 */ |
| 195 | #define ESIS_OPTION_SECURITY 197 /* iso9542 */ |
| 196 | #define ESIS_OPTION_ES_CONF_TIME 198 /* iso9542 */ |
| 197 | #define ESIS_OPTION_PRIORITY 205 /* iso9542 */ |
| 198 | #define ESIS_OPTION_ADDRESS_MASK 225 /* iso9542 */ |
| 199 | #define ESIS_OPTION_SNPA_MASK 226 /* iso9542 */ |
| 200 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 201 | static const struct tok esis_option_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 202 | { ESIS_OPTION_PROTOCOLS, "Protocols supported"}, |
| 203 | { ESIS_OPTION_QOS_MAINTENANCE, "QoS Maintenance" }, |
| 204 | { ESIS_OPTION_SECURITY, "Security" }, |
| 205 | { ESIS_OPTION_ES_CONF_TIME, "ES Configuration Time" }, |
| 206 | { ESIS_OPTION_PRIORITY, "Priority" }, |
| 207 | { ESIS_OPTION_ADDRESS_MASK, "Addressk Mask" }, |
| 208 | { ESIS_OPTION_SNPA_MASK, "SNPA Mask" }, |
| 209 | { 0, NULL } |
| 210 | }; |
| 211 | |
| 212 | #define CLNP_OPTION_DISCARD_REASON 193 |
| 213 | #define CLNP_OPTION_QOS_MAINTENANCE 195 /* iso8473 */ |
| 214 | #define CLNP_OPTION_SECURITY 197 /* iso8473 */ |
| 215 | #define CLNP_OPTION_SOURCE_ROUTING 200 /* iso8473 */ |
| 216 | #define CLNP_OPTION_ROUTE_RECORDING 203 /* iso8473 */ |
| 217 | #define CLNP_OPTION_PADDING 204 /* iso8473 */ |
| 218 | #define CLNP_OPTION_PRIORITY 205 /* iso8473 */ |
| 219 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 220 | static const struct tok clnp_option_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 221 | { CLNP_OPTION_DISCARD_REASON, "Discard Reason"}, |
| 222 | { CLNP_OPTION_PRIORITY, "Priority"}, |
| 223 | { CLNP_OPTION_QOS_MAINTENANCE, "QoS Maintenance"}, |
| 224 | { CLNP_OPTION_SECURITY, "Security"}, |
| 225 | { CLNP_OPTION_SOURCE_ROUTING, "Source Routing"}, |
| 226 | { CLNP_OPTION_ROUTE_RECORDING, "Route Recording"}, |
| 227 | { CLNP_OPTION_PADDING, "Padding"}, |
| 228 | { 0, NULL } |
| 229 | }; |
| 230 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 231 | static const struct tok clnp_option_rfd_class_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 232 | { 0x0, "General"}, |
| 233 | { 0x8, "Address"}, |
| 234 | { 0x9, "Source Routeing"}, |
| 235 | { 0xa, "Lifetime"}, |
| 236 | { 0xb, "PDU Discarded"}, |
| 237 | { 0xc, "Reassembly"}, |
| 238 | { 0, NULL } |
| 239 | }; |
| 240 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 241 | static const struct tok clnp_option_rfd_general_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 242 | { 0x0, "Reason not specified"}, |
| 243 | { 0x1, "Protocol procedure error"}, |
| 244 | { 0x2, "Incorrect checksum"}, |
| 245 | { 0x3, "PDU discarded due to congestion"}, |
| 246 | { 0x4, "Header syntax error (cannot be parsed)"}, |
| 247 | { 0x5, "Segmentation needed but not permitted"}, |
| 248 | { 0x6, "Incomplete PDU received"}, |
| 249 | { 0x7, "Duplicate option"}, |
| 250 | { 0, NULL } |
| 251 | }; |
| 252 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 253 | static const struct tok clnp_option_rfd_address_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 254 | { 0x0, "Destination address unreachable"}, |
| 255 | { 0x1, "Destination address unknown"}, |
| 256 | { 0, NULL } |
| 257 | }; |
| 258 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 259 | static const struct tok clnp_option_rfd_source_routeing_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 260 | { 0x0, "Unspecified source routeing error"}, |
| 261 | { 0x1, "Syntax error in source routeing field"}, |
| 262 | { 0x2, "Unknown address in source routeing field"}, |
| 263 | { 0x3, "Path not acceptable"}, |
| 264 | { 0, NULL } |
| 265 | }; |
| 266 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 267 | static const struct tok clnp_option_rfd_lifetime_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 268 | { 0x0, "Lifetime expired while data unit in transit"}, |
| 269 | { 0x1, "Lifetime expired during reassembly"}, |
| 270 | { 0, NULL } |
| 271 | }; |
| 272 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 273 | static const struct tok clnp_option_rfd_pdu_discard_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 274 | { 0x0, "Unsupported option not specified"}, |
| 275 | { 0x1, "Unsupported protocol version"}, |
| 276 | { 0x2, "Unsupported security option"}, |
| 277 | { 0x3, "Unsupported source routeing option"}, |
| 278 | { 0x4, "Unsupported recording of route option"}, |
| 279 | { 0, NULL } |
| 280 | }; |
| 281 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 282 | static const struct tok clnp_option_rfd_reassembly_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 283 | { 0x0, "Reassembly interference"}, |
| 284 | { 0, NULL } |
| 285 | }; |
| 286 | |
| 287 | /* array of 16 error-classes */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 288 | static const struct tok *clnp_option_rfd_error_class[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 289 | clnp_option_rfd_general_values, |
| 290 | NULL, |
| 291 | NULL, |
| 292 | NULL, |
| 293 | NULL, |
| 294 | NULL, |
| 295 | NULL, |
| 296 | NULL, |
| 297 | clnp_option_rfd_address_values, |
| 298 | clnp_option_rfd_source_routeing_values, |
| 299 | clnp_option_rfd_lifetime_values, |
| 300 | clnp_option_rfd_pdu_discard_values, |
| 301 | clnp_option_rfd_reassembly_values, |
| 302 | NULL, |
| 303 | NULL, |
| 304 | NULL |
| 305 | }; |
| 306 | |
| 307 | #define CLNP_OPTION_OPTION_QOS_MASK 0x3f |
| 308 | #define CLNP_OPTION_SCOPE_MASK 0xc0 |
| 309 | #define CLNP_OPTION_SCOPE_SA_SPEC 0x40 |
| 310 | #define CLNP_OPTION_SCOPE_DA_SPEC 0x80 |
| 311 | #define CLNP_OPTION_SCOPE_GLOBAL 0xc0 |
| 312 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 313 | static const struct tok clnp_option_scope_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 314 | { CLNP_OPTION_SCOPE_SA_SPEC, "Source Address Specific"}, |
| 315 | { CLNP_OPTION_SCOPE_DA_SPEC, "Destination Address Specific"}, |
| 316 | { CLNP_OPTION_SCOPE_GLOBAL, "Globally unique"}, |
| 317 | { 0, NULL } |
| 318 | }; |
| 319 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 320 | static const struct tok clnp_option_sr_rr_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 321 | { 0x0, "partial"}, |
| 322 | { 0x1, "complete"}, |
| 323 | { 0, NULL } |
| 324 | }; |
| 325 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 326 | static const struct tok clnp_option_sr_rr_string_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 327 | { CLNP_OPTION_SOURCE_ROUTING, "source routing"}, |
| 328 | { CLNP_OPTION_ROUTE_RECORDING, "recording of route in progress"}, |
| 329 | { 0, NULL } |
| 330 | }; |
| 331 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 332 | static const struct tok clnp_option_qos_global_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 333 | { 0x20, "reserved"}, |
| 334 | { 0x10, "sequencing vs. delay"}, |
| 335 | { 0x08, "congested"}, |
| 336 | { 0x04, "delay vs. cost"}, |
| 337 | { 0x02, "error vs. delay"}, |
| 338 | { 0x01, "error vs. cost"}, |
| 339 | { 0, NULL } |
| 340 | }; |
| 341 | |
| 342 | #define ISIS_SUBTLV_EXT_IS_REACH_ADMIN_GROUP 3 /* draft-ietf-isis-traffic-05 */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 343 | #define ISIS_SUBTLV_EXT_IS_REACH_LINK_LOCAL_REMOTE_ID 4 /* rfc4205 */ |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 344 | #define ISIS_SUBTLV_EXT_IS_REACH_LINK_REMOTE_ID 5 /* draft-ietf-isis-traffic-05 */ |
| 345 | #define ISIS_SUBTLV_EXT_IS_REACH_IPV4_INTF_ADDR 6 /* draft-ietf-isis-traffic-05 */ |
| 346 | #define ISIS_SUBTLV_EXT_IS_REACH_IPV4_NEIGHBOR_ADDR 8 /* draft-ietf-isis-traffic-05 */ |
| 347 | #define ISIS_SUBTLV_EXT_IS_REACH_MAX_LINK_BW 9 /* draft-ietf-isis-traffic-05 */ |
| 348 | #define ISIS_SUBTLV_EXT_IS_REACH_RESERVABLE_BW 10 /* draft-ietf-isis-traffic-05 */ |
| 349 | #define ISIS_SUBTLV_EXT_IS_REACH_UNRESERVED_BW 11 /* rfc4124 */ |
| 350 | #define ISIS_SUBTLV_EXT_IS_REACH_BW_CONSTRAINTS_OLD 12 /* draft-ietf-tewg-diff-te-proto-06 */ |
| 351 | #define ISIS_SUBTLV_EXT_IS_REACH_TE_METRIC 18 /* draft-ietf-isis-traffic-05 */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 352 | #define ISIS_SUBTLV_EXT_IS_REACH_LINK_ATTRIBUTE 19 /* draft-ietf-isis-link-attr-01 */ |
| 353 | #define ISIS_SUBTLV_EXT_IS_REACH_LINK_PROTECTION_TYPE 20 /* rfc4205 */ |
| 354 | #define ISIS_SUBTLV_EXT_IS_REACH_INTF_SW_CAP_DESCR 21 /* rfc4205 */ |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 355 | #define ISIS_SUBTLV_EXT_IS_REACH_BW_CONSTRAINTS 22 /* rfc4124 */ |
| 356 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 357 | #define ISIS_SUBTLV_SPB_METRIC 29 /* rfc6329 */ |
| 358 | |
| 359 | static const struct tok isis_ext_is_reach_subtlv_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 360 | { ISIS_SUBTLV_EXT_IS_REACH_ADMIN_GROUP, "Administrative groups" }, |
| 361 | { ISIS_SUBTLV_EXT_IS_REACH_LINK_LOCAL_REMOTE_ID, "Link Local/Remote Identifier" }, |
| 362 | { ISIS_SUBTLV_EXT_IS_REACH_LINK_REMOTE_ID, "Link Remote Identifier" }, |
| 363 | { ISIS_SUBTLV_EXT_IS_REACH_IPV4_INTF_ADDR, "IPv4 interface address" }, |
| 364 | { ISIS_SUBTLV_EXT_IS_REACH_IPV4_NEIGHBOR_ADDR, "IPv4 neighbor address" }, |
| 365 | { ISIS_SUBTLV_EXT_IS_REACH_MAX_LINK_BW, "Maximum link bandwidth" }, |
| 366 | { ISIS_SUBTLV_EXT_IS_REACH_RESERVABLE_BW, "Reservable link bandwidth" }, |
| 367 | { ISIS_SUBTLV_EXT_IS_REACH_UNRESERVED_BW, "Unreserved bandwidth" }, |
| 368 | { ISIS_SUBTLV_EXT_IS_REACH_TE_METRIC, "Traffic Engineering Metric" }, |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 369 | { ISIS_SUBTLV_EXT_IS_REACH_LINK_ATTRIBUTE, "Link Attribute" }, |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 370 | { ISIS_SUBTLV_EXT_IS_REACH_LINK_PROTECTION_TYPE, "Link Protection Type" }, |
| 371 | { ISIS_SUBTLV_EXT_IS_REACH_INTF_SW_CAP_DESCR, "Interface Switching Capability" }, |
| 372 | { ISIS_SUBTLV_EXT_IS_REACH_BW_CONSTRAINTS_OLD, "Bandwidth Constraints (old)" }, |
| 373 | { ISIS_SUBTLV_EXT_IS_REACH_BW_CONSTRAINTS, "Bandwidth Constraints" }, |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 374 | { ISIS_SUBTLV_SPB_METRIC, "SPB Metric" }, |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 375 | { 250, "Reserved for cisco specific extensions" }, |
| 376 | { 251, "Reserved for cisco specific extensions" }, |
| 377 | { 252, "Reserved for cisco specific extensions" }, |
| 378 | { 253, "Reserved for cisco specific extensions" }, |
| 379 | { 254, "Reserved for cisco specific extensions" }, |
| 380 | { 255, "Reserved for future expansion" }, |
| 381 | { 0, NULL } |
| 382 | }; |
| 383 | |
| 384 | #define ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG32 1 /* draft-ietf-isis-admin-tags-01 */ |
| 385 | #define ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG64 2 /* draft-ietf-isis-admin-tags-01 */ |
| 386 | #define ISIS_SUBTLV_EXTD_IP_REACH_MGMT_PREFIX_COLOR 117 /* draft-ietf-isis-wg-multi-topology-05 */ |
| 387 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 388 | static const struct tok isis_ext_ip_reach_subtlv_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 389 | { ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG32, "32-Bit Administrative tag" }, |
| 390 | { ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG64, "64-Bit Administrative tag" }, |
| 391 | { ISIS_SUBTLV_EXTD_IP_REACH_MGMT_PREFIX_COLOR, "Management Prefix Color" }, |
| 392 | { 0, NULL } |
| 393 | }; |
| 394 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 395 | static const struct tok isis_subtlv_link_attribute_values[] = { |
| 396 | { 0x01, "Local Protection Available" }, |
| 397 | { 0x02, "Link excluded from local protection path" }, |
| 398 | { 0x04, "Local maintenance required"}, |
| 399 | { 0, NULL } |
| 400 | }; |
| 401 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 402 | #define ISIS_SUBTLV_AUTH_SIMPLE 1 |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 403 | #define ISIS_SUBTLV_AUTH_GENERIC 3 /* rfc 5310 */ |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 404 | #define ISIS_SUBTLV_AUTH_MD5 54 |
| 405 | #define ISIS_SUBTLV_AUTH_MD5_LEN 16 |
| 406 | #define ISIS_SUBTLV_AUTH_PRIVATE 255 |
| 407 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 408 | static const struct tok isis_subtlv_auth_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 409 | { ISIS_SUBTLV_AUTH_SIMPLE, "simple text password"}, |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 410 | { ISIS_SUBTLV_AUTH_GENERIC, "Generic Crypto key-id"}, |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 411 | { ISIS_SUBTLV_AUTH_MD5, "HMAC-MD5 password"}, |
| 412 | { ISIS_SUBTLV_AUTH_PRIVATE, "Routing Domain private password"}, |
| 413 | { 0, NULL } |
| 414 | }; |
| 415 | |
| 416 | #define ISIS_SUBTLV_IDRP_RES 0 |
| 417 | #define ISIS_SUBTLV_IDRP_LOCAL 1 |
| 418 | #define ISIS_SUBTLV_IDRP_ASN 2 |
| 419 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 420 | static const struct tok isis_subtlv_idrp_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 421 | { ISIS_SUBTLV_IDRP_RES, "Reserved"}, |
| 422 | { ISIS_SUBTLV_IDRP_LOCAL, "Routing-Domain Specific"}, |
| 423 | { ISIS_SUBTLV_IDRP_ASN, "AS Number Tag"}, |
| 424 | { 0, NULL} |
| 425 | }; |
| 426 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 427 | #define ISIS_SUBTLV_SPB_MCID 4 |
| 428 | #define ISIS_SUBTLV_SPB_DIGEST 5 |
| 429 | #define ISIS_SUBTLV_SPB_BVID 6 |
| 430 | |
| 431 | #define ISIS_SUBTLV_SPB_INSTANCE 1 |
| 432 | #define ISIS_SUBTLV_SPBM_SI 3 |
| 433 | |
| 434 | #define ISIS_SPB_MCID_LEN 51 |
| 435 | #define ISIS_SUBTLV_SPB_MCID_MIN_LEN 102 |
| 436 | #define ISIS_SUBTLV_SPB_DIGEST_MIN_LEN 33 |
| 437 | #define ISIS_SUBTLV_SPB_BVID_MIN_LEN 6 |
| 438 | #define ISIS_SUBTLV_SPB_INSTANCE_MIN_LEN 19 |
| 439 | #define ISIS_SUBTLV_SPB_INSTANCE_VLAN_TUPLE_LEN 8 |
| 440 | |
| 441 | static const struct tok isis_mt_port_cap_subtlv_values[] = { |
| 442 | { ISIS_SUBTLV_SPB_MCID, "SPB MCID" }, |
| 443 | { ISIS_SUBTLV_SPB_DIGEST, "SPB Digest" }, |
| 444 | { ISIS_SUBTLV_SPB_BVID, "SPB BVID" }, |
| 445 | { 0, NULL } |
| 446 | }; |
| 447 | |
| 448 | static const struct tok isis_mt_capability_subtlv_values[] = { |
| 449 | { ISIS_SUBTLV_SPB_INSTANCE, "SPB Instance" }, |
| 450 | { ISIS_SUBTLV_SPBM_SI, "SPBM Service Identifier and Unicast Address" }, |
| 451 | { 0, NULL } |
| 452 | }; |
| 453 | |
| 454 | struct isis_spb_mcid { |
| 455 | u_int8_t format_id; |
| 456 | u_int8_t name[32]; |
| 457 | u_int8_t revision_lvl[2]; |
| 458 | u_int8_t digest[16]; |
| 459 | }; |
| 460 | |
| 461 | struct isis_subtlv_spb_mcid { |
| 462 | struct isis_spb_mcid mcid; |
| 463 | struct isis_spb_mcid aux_mcid; |
| 464 | }; |
| 465 | |
| 466 | struct isis_subtlv_spb_instance { |
| 467 | u_int8_t cist_root_id[8]; |
| 468 | u_int8_t cist_external_root_path_cost[4]; |
| 469 | u_int8_t bridge_priority[2]; |
| 470 | u_int8_t spsourceid[4]; |
| 471 | u_int8_t no_of_trees; |
| 472 | }; |
| 473 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 474 | #define CLNP_SEGMENT_PART 0x80 |
| 475 | #define CLNP_MORE_SEGMENTS 0x40 |
| 476 | #define CLNP_REQUEST_ER 0x20 |
| 477 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 478 | static const struct tok clnp_flag_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 479 | { CLNP_SEGMENT_PART, "Segmentation permitted"}, |
| 480 | { CLNP_MORE_SEGMENTS, "more Segments"}, |
| 481 | { CLNP_REQUEST_ER, "request Error Report"}, |
| 482 | { 0, NULL} |
| 483 | }; |
| 484 | |
| 485 | #define ISIS_MASK_LSP_OL_BIT(x) ((x)&0x4) |
| 486 | #define ISIS_MASK_LSP_ISTYPE_BITS(x) ((x)&0x3) |
| 487 | #define ISIS_MASK_LSP_PARTITION_BIT(x) ((x)&0x80) |
| 488 | #define ISIS_MASK_LSP_ATT_BITS(x) ((x)&0x78) |
| 489 | #define ISIS_MASK_LSP_ATT_ERROR_BIT(x) ((x)&0x40) |
| 490 | #define ISIS_MASK_LSP_ATT_EXPENSE_BIT(x) ((x)&0x20) |
| 491 | #define ISIS_MASK_LSP_ATT_DELAY_BIT(x) ((x)&0x10) |
| 492 | #define ISIS_MASK_LSP_ATT_DEFAULT_BIT(x) ((x)&0x8) |
| 493 | |
| 494 | #define ISIS_MASK_MTID(x) ((x)&0x0fff) |
| 495 | #define ISIS_MASK_MTFLAGS(x) ((x)&0xf000) |
| 496 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 497 | static const struct tok isis_mt_flag_values[] = { |
| 498 | { 0x4000, "ATT bit set"}, |
| 499 | { 0x8000, "Overload bit set"}, |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 500 | { 0, NULL} |
| 501 | }; |
| 502 | |
| 503 | #define ISIS_MASK_TLV_EXTD_IP_UPDOWN(x) ((x)&0x80) |
| 504 | #define ISIS_MASK_TLV_EXTD_IP_SUBTLV(x) ((x)&0x40) |
| 505 | |
| 506 | #define ISIS_MASK_TLV_EXTD_IP6_IE(x) ((x)&0x40) |
| 507 | #define ISIS_MASK_TLV_EXTD_IP6_SUBTLV(x) ((x)&0x20) |
| 508 | |
| 509 | #define ISIS_LSP_TLV_METRIC_SUPPORTED(x) ((x)&0x80) |
| 510 | #define ISIS_LSP_TLV_METRIC_IE(x) ((x)&0x40) |
| 511 | #define ISIS_LSP_TLV_METRIC_UPDOWN(x) ((x)&0x80) |
| 512 | #define ISIS_LSP_TLV_METRIC_VALUE(x) ((x)&0x3f) |
| 513 | |
| 514 | #define ISIS_MASK_TLV_SHARED_RISK_GROUP(x) ((x)&0x1) |
| 515 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 516 | static const struct tok isis_mt_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 517 | { 0, "IPv4 unicast"}, |
| 518 | { 1, "In-Band Management"}, |
| 519 | { 2, "IPv6 unicast"}, |
| 520 | { 3, "Multicast"}, |
| 521 | { 4095, "Development, Experimental or Proprietary"}, |
| 522 | { 0, NULL } |
| 523 | }; |
| 524 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 525 | static const struct tok isis_iih_circuit_type_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 526 | { 1, "Level 1 only"}, |
| 527 | { 2, "Level 2 only"}, |
| 528 | { 3, "Level 1, Level 2"}, |
| 529 | { 0, NULL} |
| 530 | }; |
| 531 | |
| 532 | #define ISIS_LSP_TYPE_UNUSED0 0 |
| 533 | #define ISIS_LSP_TYPE_LEVEL_1 1 |
| 534 | #define ISIS_LSP_TYPE_UNUSED2 2 |
| 535 | #define ISIS_LSP_TYPE_LEVEL_2 3 |
| 536 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 537 | static const struct tok isis_lsp_istype_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 538 | { ISIS_LSP_TYPE_UNUSED0, "Unused 0x0 (invalid)"}, |
| 539 | { ISIS_LSP_TYPE_LEVEL_1, "L1 IS"}, |
| 540 | { ISIS_LSP_TYPE_UNUSED2, "Unused 0x2 (invalid)"}, |
| 541 | { ISIS_LSP_TYPE_LEVEL_2, "L2 IS"}, |
| 542 | { 0, NULL } |
| 543 | }; |
| 544 | |
| 545 | /* |
| 546 | * Katz's point to point adjacency TLV uses codes to tell us the state of |
| 547 | * the remote adjacency. Enumerate them. |
| 548 | */ |
| 549 | |
| 550 | #define ISIS_PTP_ADJ_UP 0 |
| 551 | #define ISIS_PTP_ADJ_INIT 1 |
| 552 | #define ISIS_PTP_ADJ_DOWN 2 |
| 553 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 554 | static const struct tok isis_ptp_adjancey_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 555 | { ISIS_PTP_ADJ_UP, "Up" }, |
| 556 | { ISIS_PTP_ADJ_INIT, "Initializing" }, |
| 557 | { ISIS_PTP_ADJ_DOWN, "Down" }, |
| 558 | { 0, NULL} |
| 559 | }; |
| 560 | |
| 561 | struct isis_tlv_ptp_adj { |
| 562 | u_int8_t adjacency_state; |
| 563 | u_int8_t extd_local_circuit_id[4]; |
| 564 | u_int8_t neighbor_sysid[SYSTEM_ID_LEN]; |
| 565 | u_int8_t neighbor_extd_local_circuit_id[4]; |
| 566 | }; |
| 567 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 568 | static void osi_print_cksum(const u_int8_t *pptr, u_int16_t checksum, |
| 569 | u_int checksum_offset, u_int length); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 570 | static int clnp_print(const u_int8_t *, u_int); |
| 571 | static void esis_print(const u_int8_t *, u_int); |
| 572 | static int isis_print(const u_int8_t *, u_int); |
| 573 | |
| 574 | struct isis_metric_block { |
| 575 | u_int8_t metric_default; |
| 576 | u_int8_t metric_delay; |
| 577 | u_int8_t metric_expense; |
| 578 | u_int8_t metric_error; |
| 579 | }; |
| 580 | |
| 581 | struct isis_tlv_is_reach { |
| 582 | struct isis_metric_block isis_metric_block; |
| 583 | u_int8_t neighbor_nodeid[NODE_ID_LEN]; |
| 584 | }; |
| 585 | |
| 586 | struct isis_tlv_es_reach { |
| 587 | struct isis_metric_block isis_metric_block; |
| 588 | u_int8_t neighbor_sysid[SYSTEM_ID_LEN]; |
| 589 | }; |
| 590 | |
| 591 | struct isis_tlv_ip_reach { |
| 592 | struct isis_metric_block isis_metric_block; |
| 593 | u_int8_t prefix[4]; |
| 594 | u_int8_t mask[4]; |
| 595 | }; |
| 596 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 597 | static const struct tok isis_is_reach_virtual_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 598 | { 0, "IsNotVirtual"}, |
| 599 | { 1, "IsVirtual"}, |
| 600 | { 0, NULL } |
| 601 | }; |
| 602 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 603 | static const struct tok isis_restart_flag_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 604 | { 0x1, "Restart Request"}, |
| 605 | { 0x2, "Restart Acknowledgement"}, |
| 606 | { 0x4, "Suppress adjacency advertisement"}, |
| 607 | { 0, NULL } |
| 608 | }; |
| 609 | |
| 610 | struct isis_common_header { |
| 611 | u_int8_t nlpid; |
| 612 | u_int8_t fixed_len; |
| 613 | u_int8_t version; /* Protocol version */ |
| 614 | u_int8_t id_length; |
| 615 | u_int8_t pdu_type; /* 3 MSbits are reserved */ |
| 616 | u_int8_t pdu_version; /* Packet format version */ |
| 617 | u_int8_t reserved; |
| 618 | u_int8_t max_area; |
| 619 | }; |
| 620 | |
| 621 | struct isis_iih_lan_header { |
| 622 | u_int8_t circuit_type; |
| 623 | u_int8_t source_id[SYSTEM_ID_LEN]; |
| 624 | u_int8_t holding_time[2]; |
| 625 | u_int8_t pdu_len[2]; |
| 626 | u_int8_t priority; |
| 627 | u_int8_t lan_id[NODE_ID_LEN]; |
| 628 | }; |
| 629 | |
| 630 | struct isis_iih_ptp_header { |
| 631 | u_int8_t circuit_type; |
| 632 | u_int8_t source_id[SYSTEM_ID_LEN]; |
| 633 | u_int8_t holding_time[2]; |
| 634 | u_int8_t pdu_len[2]; |
| 635 | u_int8_t circuit_id; |
| 636 | }; |
| 637 | |
| 638 | struct isis_lsp_header { |
| 639 | u_int8_t pdu_len[2]; |
| 640 | u_int8_t remaining_lifetime[2]; |
| 641 | u_int8_t lsp_id[LSP_ID_LEN]; |
| 642 | u_int8_t sequence_number[4]; |
| 643 | u_int8_t checksum[2]; |
| 644 | u_int8_t typeblock; |
| 645 | }; |
| 646 | |
| 647 | struct isis_csnp_header { |
| 648 | u_int8_t pdu_len[2]; |
| 649 | u_int8_t source_id[NODE_ID_LEN]; |
| 650 | u_int8_t start_lsp_id[LSP_ID_LEN]; |
| 651 | u_int8_t end_lsp_id[LSP_ID_LEN]; |
| 652 | }; |
| 653 | |
| 654 | struct isis_psnp_header { |
| 655 | u_int8_t pdu_len[2]; |
| 656 | u_int8_t source_id[NODE_ID_LEN]; |
| 657 | }; |
| 658 | |
| 659 | struct isis_tlv_lsp { |
| 660 | u_int8_t remaining_lifetime[2]; |
| 661 | u_int8_t lsp_id[LSP_ID_LEN]; |
| 662 | u_int8_t sequence_number[4]; |
| 663 | u_int8_t checksum[2]; |
| 664 | }; |
| 665 | |
| 666 | #define ISIS_COMMON_HEADER_SIZE (sizeof(struct isis_common_header)) |
| 667 | #define ISIS_IIH_LAN_HEADER_SIZE (sizeof(struct isis_iih_lan_header)) |
| 668 | #define ISIS_IIH_PTP_HEADER_SIZE (sizeof(struct isis_iih_ptp_header)) |
| 669 | #define ISIS_LSP_HEADER_SIZE (sizeof(struct isis_lsp_header)) |
| 670 | #define ISIS_CSNP_HEADER_SIZE (sizeof(struct isis_csnp_header)) |
| 671 | #define ISIS_PSNP_HEADER_SIZE (sizeof(struct isis_psnp_header)) |
| 672 | |
| 673 | void isoclns_print(const u_int8_t *p, u_int length, u_int caplen) |
| 674 | { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 675 | if (caplen <= 1) { /* enough bytes on the wire ? */ |
| 676 | printf("|OSI"); |
| 677 | return; |
| 678 | } |
| 679 | |
| 680 | if (eflag) |
| 681 | printf("OSI NLPID %s (0x%02x): ", |
| 682 | tok2str(nlpid_values,"Unknown",*p), |
| 683 | *p); |
| 684 | |
| 685 | switch (*p) { |
| 686 | |
| 687 | case NLPID_CLNP: |
| 688 | if (!clnp_print(p, length)) |
| 689 | print_unknown_data(p,"\n\t",caplen); |
| 690 | break; |
| 691 | |
| 692 | case NLPID_ESIS: |
| 693 | esis_print(p, length); |
| 694 | return; |
| 695 | |
| 696 | case NLPID_ISIS: |
| 697 | if (!isis_print(p, length)) |
| 698 | print_unknown_data(p,"\n\t",caplen); |
| 699 | break; |
| 700 | |
| 701 | case NLPID_NULLNS: |
| 702 | (void)printf("%slength: %u", |
| 703 | eflag ? "" : ", ", |
| 704 | length); |
| 705 | break; |
| 706 | |
| 707 | case NLPID_Q933: |
| 708 | q933_print(p+1, length-1); |
| 709 | break; |
| 710 | |
| 711 | case NLPID_IP: |
| 712 | ip_print(gndo, p+1, length-1); |
| 713 | break; |
| 714 | |
| 715 | #ifdef INET6 |
| 716 | case NLPID_IP6: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 717 | ip6_print(gndo, p+1, length-1); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 718 | break; |
| 719 | #endif |
| 720 | |
| 721 | case NLPID_PPP: |
| 722 | ppp_print(p+1, length-1); |
| 723 | break; |
| 724 | |
| 725 | default: |
| 726 | if (!eflag) |
| 727 | printf("OSI NLPID 0x%02x unknown",*p); |
| 728 | (void)printf("%slength: %u", |
| 729 | eflag ? "" : ", ", |
| 730 | length); |
| 731 | if (caplen > 1) |
| 732 | print_unknown_data(p,"\n\t",caplen); |
| 733 | break; |
| 734 | } |
| 735 | } |
| 736 | |
| 737 | #define CLNP_PDU_ER 1 |
| 738 | #define CLNP_PDU_DT 28 |
| 739 | #define CLNP_PDU_MD 29 |
| 740 | #define CLNP_PDU_ERQ 30 |
| 741 | #define CLNP_PDU_ERP 31 |
| 742 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 743 | static const struct tok clnp_pdu_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 744 | { CLNP_PDU_ER, "Error Report"}, |
| 745 | { CLNP_PDU_MD, "MD"}, |
| 746 | { CLNP_PDU_DT, "Data"}, |
| 747 | { CLNP_PDU_ERQ, "Echo Request"}, |
| 748 | { CLNP_PDU_ERP, "Echo Response"}, |
| 749 | { 0, NULL } |
| 750 | }; |
| 751 | |
| 752 | struct clnp_header_t { |
| 753 | u_int8_t nlpid; |
| 754 | u_int8_t length_indicator; |
| 755 | u_int8_t version; |
| 756 | u_int8_t lifetime; /* units of 500ms */ |
| 757 | u_int8_t type; |
| 758 | u_int8_t segment_length[2]; |
| 759 | u_int8_t cksum[2]; |
| 760 | }; |
| 761 | |
| 762 | struct clnp_segment_header_t { |
| 763 | u_int8_t data_unit_id[2]; |
| 764 | u_int8_t segment_offset[2]; |
| 765 | u_int8_t total_length[2]; |
| 766 | }; |
| 767 | |
| 768 | /* |
| 769 | * clnp_print |
| 770 | * Decode CLNP packets. Return 0 on error. |
| 771 | */ |
| 772 | |
| 773 | static int clnp_print (const u_int8_t *pptr, u_int length) |
| 774 | { |
| 775 | const u_int8_t *optr,*source_address,*dest_address; |
| 776 | u_int li,tlen,nsap_offset,source_address_length,dest_address_length, clnp_pdu_type, clnp_flags; |
| 777 | const struct clnp_header_t *clnp_header; |
| 778 | const struct clnp_segment_header_t *clnp_segment_header; |
| 779 | u_int8_t rfd_error_major,rfd_error_minor; |
| 780 | |
| 781 | clnp_header = (const struct clnp_header_t *) pptr; |
| 782 | TCHECK(*clnp_header); |
| 783 | |
| 784 | li = clnp_header->length_indicator; |
| 785 | optr = pptr; |
| 786 | |
| 787 | if (!eflag) |
| 788 | printf("CLNP"); |
| 789 | |
| 790 | /* |
| 791 | * Sanity checking of the header. |
| 792 | */ |
| 793 | |
| 794 | if (clnp_header->version != CLNP_VERSION) { |
| 795 | printf("version %d packet not supported", clnp_header->version); |
| 796 | return (0); |
| 797 | } |
| 798 | |
| 799 | /* FIXME further header sanity checking */ |
| 800 | |
| 801 | clnp_pdu_type = clnp_header->type & CLNP_PDU_TYPE_MASK; |
| 802 | clnp_flags = clnp_header->type & CLNP_FLAG_MASK; |
| 803 | |
| 804 | pptr += sizeof(struct clnp_header_t); |
| 805 | li -= sizeof(struct clnp_header_t); |
| 806 | dest_address_length = *pptr; |
| 807 | dest_address = pptr + 1; |
| 808 | |
| 809 | pptr += (1 + dest_address_length); |
| 810 | li -= (1 + dest_address_length); |
| 811 | source_address_length = *pptr; |
| 812 | source_address = pptr +1; |
| 813 | |
| 814 | pptr += (1 + source_address_length); |
| 815 | li -= (1 + source_address_length); |
| 816 | |
| 817 | if (vflag < 1) { |
| 818 | printf("%s%s > %s, %s, length %u", |
| 819 | eflag ? "" : ", ", |
| 820 | isonsap_string(source_address, source_address_length), |
| 821 | isonsap_string(dest_address, dest_address_length), |
| 822 | tok2str(clnp_pdu_values,"unknown (%u)",clnp_pdu_type), |
| 823 | length); |
| 824 | return (1); |
| 825 | } |
| 826 | printf("%slength %u",eflag ? "" : ", ",length); |
| 827 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 828 | printf("\n\t%s PDU, hlen: %u, v: %u, lifetime: %u.%us, Segment PDU length: %u, checksum: 0x%04x", |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 829 | tok2str(clnp_pdu_values, "unknown (%u)",clnp_pdu_type), |
| 830 | clnp_header->length_indicator, |
| 831 | clnp_header->version, |
| 832 | clnp_header->lifetime/2, |
| 833 | (clnp_header->lifetime%2)*5, |
| 834 | EXTRACT_16BITS(clnp_header->segment_length), |
| 835 | EXTRACT_16BITS(clnp_header->cksum)); |
| 836 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 837 | osi_print_cksum(optr, EXTRACT_16BITS(clnp_header->cksum), 7, |
| 838 | clnp_header->length_indicator); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 839 | |
| 840 | printf("\n\tFlags [%s]", |
| 841 | bittok2str(clnp_flag_values,"none",clnp_flags)); |
| 842 | |
| 843 | printf("\n\tsource address (length %u): %s\n\tdest address (length %u): %s", |
| 844 | source_address_length, |
| 845 | isonsap_string(source_address, source_address_length), |
| 846 | dest_address_length, |
| 847 | isonsap_string(dest_address,dest_address_length)); |
| 848 | |
| 849 | if (clnp_flags & CLNP_SEGMENT_PART) { |
| 850 | clnp_segment_header = (const struct clnp_segment_header_t *) pptr; |
| 851 | TCHECK(*clnp_segment_header); |
| 852 | printf("\n\tData Unit ID: 0x%04x, Segment Offset: %u, Total PDU Length: %u", |
| 853 | EXTRACT_16BITS(clnp_segment_header->data_unit_id), |
| 854 | EXTRACT_16BITS(clnp_segment_header->segment_offset), |
| 855 | EXTRACT_16BITS(clnp_segment_header->total_length)); |
| 856 | pptr+=sizeof(const struct clnp_segment_header_t); |
| 857 | li-=sizeof(const struct clnp_segment_header_t); |
| 858 | } |
| 859 | |
| 860 | /* now walk the options */ |
| 861 | while (li >= 2) { |
| 862 | u_int op, opli; |
| 863 | const u_int8_t *tptr; |
| 864 | |
| 865 | TCHECK2(*pptr, 2); |
| 866 | if (li < 2) { |
| 867 | printf(", bad opts/li"); |
| 868 | return (0); |
| 869 | } |
| 870 | op = *pptr++; |
| 871 | opli = *pptr++; |
| 872 | li -= 2; |
| 873 | TCHECK2(*pptr, opli); |
| 874 | if (opli > li) { |
| 875 | printf(", opt (%d) too long", op); |
| 876 | return (0); |
| 877 | } |
| 878 | li -= opli; |
| 879 | tptr = pptr; |
| 880 | tlen = opli; |
| 881 | |
| 882 | printf("\n\t %s Option #%u, length %u, value: ", |
| 883 | tok2str(clnp_option_values,"Unknown",op), |
| 884 | op, |
| 885 | opli); |
| 886 | |
| 887 | switch (op) { |
| 888 | |
| 889 | |
| 890 | case CLNP_OPTION_ROUTE_RECORDING: /* those two options share the format */ |
| 891 | case CLNP_OPTION_SOURCE_ROUTING: |
| 892 | printf("%s %s", |
| 893 | tok2str(clnp_option_sr_rr_values,"Unknown",*tptr), |
| 894 | tok2str(clnp_option_sr_rr_string_values,"Unknown Option %u",op)); |
| 895 | nsap_offset=*(tptr+1); |
| 896 | if (nsap_offset == 0) { |
| 897 | printf(" Bad NSAP offset (0)"); |
| 898 | break; |
| 899 | } |
| 900 | nsap_offset-=1; /* offset to nsap list */ |
| 901 | if (nsap_offset > tlen) { |
| 902 | printf(" Bad NSAP offset (past end of option)"); |
| 903 | break; |
| 904 | } |
| 905 | tptr+=nsap_offset; |
| 906 | tlen-=nsap_offset; |
| 907 | while (tlen > 0) { |
| 908 | source_address_length=*tptr; |
| 909 | if (tlen < source_address_length+1) { |
| 910 | printf("\n\t NSAP address goes past end of option"); |
| 911 | break; |
| 912 | } |
| 913 | if (source_address_length > 0) { |
| 914 | source_address=(tptr+1); |
| 915 | TCHECK2(*source_address, source_address_length); |
| 916 | printf("\n\t NSAP address (length %u): %s", |
| 917 | source_address_length, |
| 918 | isonsap_string(source_address, source_address_length)); |
| 919 | } |
| 920 | tlen-=source_address_length+1; |
| 921 | } |
| 922 | break; |
| 923 | |
| 924 | case CLNP_OPTION_PRIORITY: |
| 925 | printf("0x%1x", *tptr&0x0f); |
| 926 | break; |
| 927 | |
| 928 | case CLNP_OPTION_QOS_MAINTENANCE: |
| 929 | printf("\n\t Format Code: %s", |
| 930 | tok2str(clnp_option_scope_values,"Reserved",*tptr&CLNP_OPTION_SCOPE_MASK)); |
| 931 | |
| 932 | if ((*tptr&CLNP_OPTION_SCOPE_MASK) == CLNP_OPTION_SCOPE_GLOBAL) |
| 933 | printf("\n\t QoS Flags [%s]", |
| 934 | bittok2str(clnp_option_qos_global_values, |
| 935 | "none", |
| 936 | *tptr&CLNP_OPTION_OPTION_QOS_MASK)); |
| 937 | break; |
| 938 | |
| 939 | case CLNP_OPTION_SECURITY: |
| 940 | printf("\n\t Format Code: %s, Security-Level %u", |
| 941 | tok2str(clnp_option_scope_values,"Reserved",*tptr&CLNP_OPTION_SCOPE_MASK), |
| 942 | *(tptr+1)); |
| 943 | break; |
| 944 | |
| 945 | case CLNP_OPTION_DISCARD_REASON: |
| 946 | rfd_error_major = (*tptr&0xf0) >> 4; |
| 947 | rfd_error_minor = *tptr&0x0f; |
| 948 | printf("\n\t Class: %s Error (0x%01x), %s (0x%01x)", |
| 949 | tok2str(clnp_option_rfd_class_values,"Unknown",rfd_error_major), |
| 950 | rfd_error_major, |
| 951 | tok2str(clnp_option_rfd_error_class[rfd_error_major],"Unknown",rfd_error_minor), |
| 952 | rfd_error_minor); |
| 953 | break; |
| 954 | |
| 955 | case CLNP_OPTION_PADDING: |
| 956 | printf("padding data"); |
| 957 | break; |
| 958 | |
| 959 | /* |
| 960 | * FIXME those are the defined Options that lack a decoder |
| 961 | * you are welcome to contribute code ;-) |
| 962 | */ |
| 963 | |
| 964 | default: |
| 965 | print_unknown_data(tptr,"\n\t ",opli); |
| 966 | break; |
| 967 | } |
| 968 | if (vflag > 1) |
| 969 | print_unknown_data(pptr,"\n\t ",opli); |
| 970 | pptr += opli; |
| 971 | } |
| 972 | |
| 973 | switch (clnp_pdu_type) { |
| 974 | |
| 975 | case CLNP_PDU_ER: /* fall through */ |
| 976 | case CLNP_PDU_ERP: |
| 977 | TCHECK(*pptr); |
| 978 | if (*(pptr) == NLPID_CLNP) { |
| 979 | printf("\n\t-----original packet-----\n\t"); |
| 980 | /* FIXME recursion protection */ |
| 981 | clnp_print(pptr, length-clnp_header->length_indicator); |
| 982 | break; |
| 983 | } |
| 984 | |
| 985 | case CLNP_PDU_DT: |
| 986 | case CLNP_PDU_MD: |
| 987 | case CLNP_PDU_ERQ: |
| 988 | |
| 989 | default: |
| 990 | /* dump the PDU specific data */ |
| 991 | if (length-(pptr-optr) > 0) { |
| 992 | printf("\n\t undecoded non-header data, length %u",length-clnp_header->length_indicator); |
| 993 | print_unknown_data(pptr,"\n\t ",length-(pptr-optr)); |
| 994 | } |
| 995 | } |
| 996 | |
| 997 | return (1); |
| 998 | |
| 999 | trunc: |
| 1000 | fputs("[|clnp]", stdout); |
| 1001 | return (1); |
| 1002 | |
| 1003 | } |
| 1004 | |
| 1005 | |
| 1006 | #define ESIS_PDU_REDIRECT 6 |
| 1007 | #define ESIS_PDU_ESH 2 |
| 1008 | #define ESIS_PDU_ISH 4 |
| 1009 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1010 | static const struct tok esis_pdu_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1011 | { ESIS_PDU_REDIRECT, "redirect"}, |
| 1012 | { ESIS_PDU_ESH, "ESH"}, |
| 1013 | { ESIS_PDU_ISH, "ISH"}, |
| 1014 | { 0, NULL } |
| 1015 | }; |
| 1016 | |
| 1017 | struct esis_header_t { |
| 1018 | u_int8_t nlpid; |
| 1019 | u_int8_t length_indicator; |
| 1020 | u_int8_t version; |
| 1021 | u_int8_t reserved; |
| 1022 | u_int8_t type; |
| 1023 | u_int8_t holdtime[2]; |
| 1024 | u_int8_t cksum[2]; |
| 1025 | }; |
| 1026 | |
| 1027 | static void |
| 1028 | esis_print(const u_int8_t *pptr, u_int length) |
| 1029 | { |
| 1030 | const u_int8_t *optr; |
| 1031 | u_int li,esis_pdu_type,source_address_length, source_address_number; |
| 1032 | const struct esis_header_t *esis_header; |
| 1033 | |
| 1034 | if (!eflag) |
| 1035 | printf("ES-IS"); |
| 1036 | |
| 1037 | if (length <= 2) { |
| 1038 | if (qflag) |
| 1039 | printf("bad pkt!"); |
| 1040 | else |
| 1041 | printf("no header at all!"); |
| 1042 | return; |
| 1043 | } |
| 1044 | |
| 1045 | esis_header = (const struct esis_header_t *) pptr; |
| 1046 | TCHECK(*esis_header); |
| 1047 | li = esis_header->length_indicator; |
| 1048 | optr = pptr; |
| 1049 | |
| 1050 | /* |
| 1051 | * Sanity checking of the header. |
| 1052 | */ |
| 1053 | |
| 1054 | if (esis_header->nlpid != NLPID_ESIS) { |
| 1055 | printf(" nlpid 0x%02x packet not supported", esis_header->nlpid); |
| 1056 | return; |
| 1057 | } |
| 1058 | |
| 1059 | if (esis_header->version != ESIS_VERSION) { |
| 1060 | printf(" version %d packet not supported", esis_header->version); |
| 1061 | return; |
| 1062 | } |
| 1063 | |
| 1064 | if (li > length) { |
| 1065 | printf(" length indicator(%d) > PDU size (%d)!", li, length); |
| 1066 | return; |
| 1067 | } |
| 1068 | |
| 1069 | if (li < sizeof(struct esis_header_t) + 2) { |
| 1070 | printf(" length indicator < min PDU size %d:", li); |
| 1071 | while (--length != 0) |
| 1072 | printf("%02X", *pptr++); |
| 1073 | return; |
| 1074 | } |
| 1075 | |
| 1076 | esis_pdu_type = esis_header->type & ESIS_PDU_TYPE_MASK; |
| 1077 | |
| 1078 | if (vflag < 1) { |
| 1079 | printf("%s%s, length %u", |
| 1080 | eflag ? "" : ", ", |
| 1081 | tok2str(esis_pdu_values,"unknown type (%u)",esis_pdu_type), |
| 1082 | length); |
| 1083 | return; |
| 1084 | } else |
| 1085 | printf("%slength %u\n\t%s (%u)", |
| 1086 | eflag ? "" : ", ", |
| 1087 | length, |
| 1088 | tok2str(esis_pdu_values,"unknown type: %u", esis_pdu_type), |
| 1089 | esis_pdu_type); |
| 1090 | |
| 1091 | printf(", v: %u%s", esis_header->version, esis_header->version == ESIS_VERSION ? "" : "unsupported" ); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1092 | printf(", checksum: 0x%04x", EXTRACT_16BITS(esis_header->cksum)); |
| 1093 | |
| 1094 | osi_print_cksum(pptr, EXTRACT_16BITS(esis_header->cksum), 7, li); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1095 | |
| 1096 | printf(", holding time: %us, length indicator: %u",EXTRACT_16BITS(esis_header->holdtime),li); |
| 1097 | |
| 1098 | if (vflag > 1) |
| 1099 | print_unknown_data(optr,"\n\t",sizeof(struct esis_header_t)); |
| 1100 | |
| 1101 | pptr += sizeof(struct esis_header_t); |
| 1102 | li -= sizeof(struct esis_header_t); |
| 1103 | |
| 1104 | switch (esis_pdu_type) { |
| 1105 | case ESIS_PDU_REDIRECT: { |
| 1106 | const u_int8_t *dst, *snpa, *neta; |
| 1107 | u_int dstl, snpal, netal; |
| 1108 | |
| 1109 | TCHECK(*pptr); |
| 1110 | if (li < 1) { |
| 1111 | printf(", bad redirect/li"); |
| 1112 | return; |
| 1113 | } |
| 1114 | dstl = *pptr; |
| 1115 | pptr++; |
| 1116 | li--; |
| 1117 | TCHECK2(*pptr, dstl); |
| 1118 | if (li < dstl) { |
| 1119 | printf(", bad redirect/li"); |
| 1120 | return; |
| 1121 | } |
| 1122 | dst = pptr; |
| 1123 | pptr += dstl; |
| 1124 | li -= dstl; |
| 1125 | printf("\n\t %s", isonsap_string(dst,dstl)); |
| 1126 | |
| 1127 | TCHECK(*pptr); |
| 1128 | if (li < 1) { |
| 1129 | printf(", bad redirect/li"); |
| 1130 | return; |
| 1131 | } |
| 1132 | snpal = *pptr; |
| 1133 | pptr++; |
| 1134 | li--; |
| 1135 | TCHECK2(*pptr, snpal); |
| 1136 | if (li < snpal) { |
| 1137 | printf(", bad redirect/li"); |
| 1138 | return; |
| 1139 | } |
| 1140 | snpa = pptr; |
| 1141 | pptr += snpal; |
| 1142 | li -= snpal; |
| 1143 | TCHECK(*pptr); |
| 1144 | if (li < 1) { |
| 1145 | printf(", bad redirect/li"); |
| 1146 | return; |
| 1147 | } |
| 1148 | netal = *pptr; |
| 1149 | pptr++; |
| 1150 | TCHECK2(*pptr, netal); |
| 1151 | if (li < netal) { |
| 1152 | printf(", bad redirect/li"); |
| 1153 | return; |
| 1154 | } |
| 1155 | neta = pptr; |
| 1156 | pptr += netal; |
| 1157 | li -= netal; |
| 1158 | |
| 1159 | if (netal == 0) |
| 1160 | printf("\n\t %s", etheraddr_string(snpa)); |
| 1161 | else |
| 1162 | printf("\n\t %s", isonsap_string(neta,netal)); |
| 1163 | break; |
| 1164 | } |
| 1165 | |
| 1166 | case ESIS_PDU_ESH: |
| 1167 | TCHECK(*pptr); |
| 1168 | if (li < 1) { |
| 1169 | printf(", bad esh/li"); |
| 1170 | return; |
| 1171 | } |
| 1172 | source_address_number = *pptr; |
| 1173 | pptr++; |
| 1174 | li--; |
| 1175 | |
| 1176 | printf("\n\t Number of Source Addresses: %u", source_address_number); |
| 1177 | |
| 1178 | while (source_address_number > 0) { |
| 1179 | TCHECK(*pptr); |
| 1180 | if (li < 1) { |
| 1181 | printf(", bad esh/li"); |
| 1182 | return; |
| 1183 | } |
| 1184 | source_address_length = *pptr; |
| 1185 | pptr++; |
| 1186 | li--; |
| 1187 | |
| 1188 | TCHECK2(*pptr, source_address_length); |
| 1189 | if (li < source_address_length) { |
| 1190 | printf(", bad esh/li"); |
| 1191 | return; |
| 1192 | } |
| 1193 | printf("\n\t NET (length: %u): %s", |
| 1194 | source_address_length, |
| 1195 | isonsap_string(pptr,source_address_length)); |
| 1196 | pptr += source_address_length; |
| 1197 | li -= source_address_length; |
| 1198 | source_address_number--; |
| 1199 | } |
| 1200 | |
| 1201 | break; |
| 1202 | |
| 1203 | case ESIS_PDU_ISH: { |
| 1204 | TCHECK(*pptr); |
| 1205 | if (li < 1) { |
| 1206 | printf(", bad ish/li"); |
| 1207 | return; |
| 1208 | } |
| 1209 | source_address_length = *pptr; |
| 1210 | pptr++; |
| 1211 | li--; |
| 1212 | TCHECK2(*pptr, source_address_length); |
| 1213 | if (li < source_address_length) { |
| 1214 | printf(", bad ish/li"); |
| 1215 | return; |
| 1216 | } |
| 1217 | printf("\n\t NET (length: %u): %s", source_address_length, isonsap_string(pptr, source_address_length)); |
| 1218 | pptr += source_address_length; |
| 1219 | li -= source_address_length; |
| 1220 | break; |
| 1221 | } |
| 1222 | |
| 1223 | default: |
| 1224 | if (vflag <= 1) { |
| 1225 | if (pptr < snapend) |
| 1226 | print_unknown_data(pptr,"\n\t ",snapend-pptr); |
| 1227 | } |
| 1228 | return; |
| 1229 | } |
| 1230 | |
| 1231 | /* now walk the options */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1232 | while (li != 0) { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1233 | u_int op, opli; |
| 1234 | const u_int8_t *tptr; |
| 1235 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1236 | if (li < 2) { |
| 1237 | printf(", bad opts/li"); |
| 1238 | return; |
| 1239 | } |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1240 | TCHECK2(*pptr, 2); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1241 | op = *pptr++; |
| 1242 | opli = *pptr++; |
| 1243 | li -= 2; |
| 1244 | if (opli > li) { |
| 1245 | printf(", opt (%d) too long", op); |
| 1246 | return; |
| 1247 | } |
| 1248 | li -= opli; |
| 1249 | tptr = pptr; |
| 1250 | |
| 1251 | printf("\n\t %s Option #%u, length %u, value: ", |
| 1252 | tok2str(esis_option_values,"Unknown",op), |
| 1253 | op, |
| 1254 | opli); |
| 1255 | |
| 1256 | switch (op) { |
| 1257 | |
| 1258 | case ESIS_OPTION_ES_CONF_TIME: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1259 | if (opli == 2) { |
| 1260 | TCHECK2(*pptr, 2); |
| 1261 | printf("%us", EXTRACT_16BITS(tptr)); |
| 1262 | } else |
| 1263 | printf("(bad length)"); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1264 | break; |
| 1265 | |
| 1266 | case ESIS_OPTION_PROTOCOLS: |
| 1267 | while (opli>0) { |
| 1268 | TCHECK(*pptr); |
| 1269 | printf("%s (0x%02x)", |
| 1270 | tok2str(nlpid_values, |
| 1271 | "unknown", |
| 1272 | *tptr), |
| 1273 | *tptr); |
| 1274 | if (opli>1) /* further NPLIDs ? - put comma */ |
| 1275 | printf(", "); |
| 1276 | tptr++; |
| 1277 | opli--; |
| 1278 | } |
| 1279 | break; |
| 1280 | |
| 1281 | /* |
| 1282 | * FIXME those are the defined Options that lack a decoder |
| 1283 | * you are welcome to contribute code ;-) |
| 1284 | */ |
| 1285 | |
| 1286 | case ESIS_OPTION_QOS_MAINTENANCE: |
| 1287 | case ESIS_OPTION_SECURITY: |
| 1288 | case ESIS_OPTION_PRIORITY: |
| 1289 | case ESIS_OPTION_ADDRESS_MASK: |
| 1290 | case ESIS_OPTION_SNPA_MASK: |
| 1291 | |
| 1292 | default: |
| 1293 | print_unknown_data(tptr,"\n\t ",opli); |
| 1294 | break; |
| 1295 | } |
| 1296 | if (vflag > 1) |
| 1297 | print_unknown_data(pptr,"\n\t ",opli); |
| 1298 | pptr += opli; |
| 1299 | } |
| 1300 | trunc: |
| 1301 | return; |
| 1302 | } |
| 1303 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1304 | |
| 1305 | static void |
| 1306 | isis_print_mcid (const struct isis_spb_mcid *mcid) |
| 1307 | { |
| 1308 | int i; |
| 1309 | |
| 1310 | printf( "ID: %d, Name: ", mcid->format_id); |
| 1311 | |
| 1312 | for(i=0; i<32; i++) |
| 1313 | { |
| 1314 | printf("%c", mcid->name[i]); |
| 1315 | if(mcid->name[i] == '\0') |
| 1316 | break; |
| 1317 | } |
| 1318 | |
| 1319 | printf("\n\t Lvl: %d", |
| 1320 | EXTRACT_16BITS(mcid->revision_lvl)); |
| 1321 | |
| 1322 | printf( ", Digest: "); |
| 1323 | |
| 1324 | for(i=0;i<16;i++) |
| 1325 | printf("%.2x ",mcid->digest[i]); |
| 1326 | } |
| 1327 | |
| 1328 | static int |
| 1329 | isis_print_mt_port_cap_subtlv (const u_int8_t *tptr, int len) |
| 1330 | { |
| 1331 | int stlv_type, stlv_len; |
| 1332 | const struct isis_subtlv_spb_mcid *subtlv_spb_mcid; |
| 1333 | int i; |
| 1334 | |
| 1335 | while (len > 0) |
| 1336 | { |
| 1337 | stlv_type = *(tptr++); |
| 1338 | stlv_len = *(tptr++); |
| 1339 | |
| 1340 | /* first lets see if we know the subTLVs name*/ |
| 1341 | printf("\n\t %s subTLV #%u, length: %u", |
| 1342 | tok2str(isis_mt_port_cap_subtlv_values, "unknown", stlv_type), |
| 1343 | stlv_type, |
| 1344 | stlv_len); |
| 1345 | |
| 1346 | /*len -= TLV_TYPE_LEN_OFFSET;*/ |
| 1347 | len = len -2; |
| 1348 | |
| 1349 | switch (stlv_type) |
| 1350 | { |
| 1351 | case ISIS_SUBTLV_SPB_MCID: |
| 1352 | { |
| 1353 | if (!TTEST2(*(tptr), ISIS_SUBTLV_SPB_MCID_MIN_LEN)) |
| 1354 | goto trunctlv; |
| 1355 | |
| 1356 | subtlv_spb_mcid = (struct isis_subtlv_spb_mcid *)tptr; |
| 1357 | |
| 1358 | printf( "\n\t MCID: "); |
| 1359 | isis_print_mcid (&(subtlv_spb_mcid->mcid)); |
| 1360 | |
| 1361 | /*tptr += SPB_MCID_MIN_LEN; |
| 1362 | len -= SPB_MCID_MIN_LEN; */ |
| 1363 | |
| 1364 | printf( "\n\t AUX-MCID: "); |
| 1365 | isis_print_mcid (&(subtlv_spb_mcid->aux_mcid)); |
| 1366 | |
| 1367 | /*tptr += SPB_MCID_MIN_LEN; |
| 1368 | len -= SPB_MCID_MIN_LEN; */ |
| 1369 | tptr = tptr + sizeof(struct isis_subtlv_spb_mcid); |
| 1370 | len = len - sizeof(struct isis_subtlv_spb_mcid); |
| 1371 | |
| 1372 | break; |
| 1373 | } |
| 1374 | |
| 1375 | case ISIS_SUBTLV_SPB_DIGEST: |
| 1376 | { |
| 1377 | if (!TTEST2(*(tptr), ISIS_SUBTLV_SPB_DIGEST_MIN_LEN)) |
| 1378 | goto trunctlv; |
| 1379 | |
| 1380 | printf ("\n\t RES: %d V: %d A: %d D: %d", |
| 1381 | (*(tptr) >> 5), (((*tptr)>> 4) & 0x01), |
| 1382 | ((*(tptr) >> 2) & 0x03), ((*tptr) & 0x03)); |
| 1383 | |
| 1384 | tptr++; |
| 1385 | |
| 1386 | printf( "\n\t Digest: "); |
| 1387 | |
| 1388 | for(i=1;i<=8; i++) |
| 1389 | { |
| 1390 | printf("%08x ", EXTRACT_32BITS(tptr)); |
| 1391 | if (i%4 == 0 && i != 8) |
| 1392 | printf("\n\t "); |
| 1393 | tptr = tptr + 4; |
| 1394 | } |
| 1395 | |
| 1396 | len = len - ISIS_SUBTLV_SPB_DIGEST_MIN_LEN; |
| 1397 | |
| 1398 | break; |
| 1399 | } |
| 1400 | |
| 1401 | case ISIS_SUBTLV_SPB_BVID: |
| 1402 | { |
| 1403 | if (!TTEST2(*(tptr), stlv_len)) |
| 1404 | goto trunctlv; |
| 1405 | |
| 1406 | while (len) |
| 1407 | { |
| 1408 | if (!TTEST2(*(tptr), ISIS_SUBTLV_SPB_BVID_MIN_LEN)) |
| 1409 | goto trunctlv; |
| 1410 | |
| 1411 | printf("\n\t ECT: %08x", |
| 1412 | EXTRACT_32BITS(tptr)); |
| 1413 | |
| 1414 | tptr = tptr+4; |
| 1415 | |
| 1416 | printf(" BVID: %d, U:%01x M:%01x ", |
| 1417 | (EXTRACT_16BITS (tptr) >> 4) , |
| 1418 | (EXTRACT_16BITS (tptr) >> 3) & 0x01, |
| 1419 | (EXTRACT_16BITS (tptr) >> 2) & 0x01); |
| 1420 | |
| 1421 | tptr = tptr + 2; |
| 1422 | len = len - ISIS_SUBTLV_SPB_BVID_MIN_LEN; |
| 1423 | } |
| 1424 | |
| 1425 | break; |
| 1426 | } |
| 1427 | |
| 1428 | default: |
| 1429 | break; |
| 1430 | } |
| 1431 | } |
| 1432 | |
| 1433 | return 0; |
| 1434 | |
| 1435 | trunctlv: |
| 1436 | printf("\n\t\t packet exceeded snapshot"); |
| 1437 | return(1); |
| 1438 | } |
| 1439 | |
| 1440 | static int |
| 1441 | isis_print_mt_capability_subtlv (const u_int8_t *tptr, int len) |
| 1442 | { |
| 1443 | int stlv_type, stlv_len, tmp; |
| 1444 | |
| 1445 | while (len > 0) |
| 1446 | { |
| 1447 | stlv_type = *(tptr++); |
| 1448 | stlv_len = *(tptr++); |
| 1449 | |
| 1450 | /* first lets see if we know the subTLVs name*/ |
| 1451 | printf("\n\t %s subTLV #%u, length: %u", |
| 1452 | tok2str(isis_mt_capability_subtlv_values, "unknown", stlv_type), |
| 1453 | stlv_type, |
| 1454 | stlv_len); |
| 1455 | |
| 1456 | len = len - 2; |
| 1457 | |
| 1458 | switch (stlv_type) |
| 1459 | { |
| 1460 | case ISIS_SUBTLV_SPB_INSTANCE: |
| 1461 | |
| 1462 | if (!TTEST2(*(tptr), ISIS_SUBTLV_SPB_INSTANCE_MIN_LEN)) |
| 1463 | goto trunctlv; |
| 1464 | |
| 1465 | printf("\n\t CIST Root-ID: %08x", EXTRACT_32BITS(tptr)); |
| 1466 | tptr = tptr+4; |
| 1467 | printf(" %08x", EXTRACT_32BITS(tptr)); |
| 1468 | tptr = tptr+4; |
| 1469 | printf(", Path Cost: %08x", EXTRACT_32BITS(tptr)); |
| 1470 | tptr = tptr+4; |
| 1471 | printf(", Prio: %d", EXTRACT_16BITS(tptr)); |
| 1472 | tptr = tptr + 2; |
| 1473 | printf("\n\t RES: %d", |
| 1474 | EXTRACT_16BITS(tptr) >> 5); |
| 1475 | printf(", V: %d", |
| 1476 | (EXTRACT_16BITS(tptr) >> 4) & 0x0001); |
| 1477 | printf(", SPSource-ID: %d", |
| 1478 | (EXTRACT_32BITS(tptr) & 0x000fffff)); |
| 1479 | tptr = tptr+4; |
| 1480 | printf(", No of Trees: %x", *(tptr)); |
| 1481 | |
| 1482 | tmp = *(tptr++); |
| 1483 | |
| 1484 | len = len - ISIS_SUBTLV_SPB_INSTANCE_MIN_LEN; |
| 1485 | |
| 1486 | while (tmp) |
| 1487 | { |
| 1488 | if (!TTEST2(*(tptr), ISIS_SUBTLV_SPB_INSTANCE_VLAN_TUPLE_LEN)) |
| 1489 | goto trunctlv; |
| 1490 | |
| 1491 | printf ("\n\t U:%d, M:%d, A:%d, RES:%d", |
| 1492 | *(tptr) >> 7, (*(tptr) >> 6) & 0x01, |
| 1493 | (*(tptr) >> 5) & 0x01, (*(tptr) & 0x1f)); |
| 1494 | |
| 1495 | tptr++; |
| 1496 | |
| 1497 | printf (", ECT: %08x", EXTRACT_32BITS(tptr)); |
| 1498 | |
| 1499 | tptr = tptr + 4; |
| 1500 | |
| 1501 | printf (", BVID: %d, SPVID: %d", |
| 1502 | (EXTRACT_24BITS(tptr) >> 12) & 0x000fff, |
| 1503 | EXTRACT_24BITS(tptr) & 0x000fff); |
| 1504 | |
| 1505 | tptr = tptr + 3; |
| 1506 | len = len - ISIS_SUBTLV_SPB_INSTANCE_VLAN_TUPLE_LEN; |
| 1507 | tmp--; |
| 1508 | } |
| 1509 | |
| 1510 | break; |
| 1511 | |
| 1512 | case ISIS_SUBTLV_SPBM_SI: |
| 1513 | |
| 1514 | if (!TTEST2(*(tptr), 6)) |
| 1515 | goto trunctlv; |
| 1516 | |
| 1517 | printf("\n\t BMAC: %08x", EXTRACT_32BITS(tptr)); |
| 1518 | tptr = tptr+4; |
| 1519 | printf("%04x", EXTRACT_16BITS(tptr)); |
| 1520 | tptr = tptr+2; |
| 1521 | |
| 1522 | printf (", RES: %d, VID: %d", EXTRACT_16BITS(tptr) >> 12, |
| 1523 | (EXTRACT_16BITS(tptr)) & 0x0fff); |
| 1524 | |
| 1525 | tptr = tptr+2; |
| 1526 | len = len - 8; |
| 1527 | stlv_len = stlv_len - 8; |
| 1528 | |
| 1529 | while (stlv_len) |
| 1530 | { |
| 1531 | printf("\n\t T: %d, R: %d, RES: %d, ISID: %d", |
| 1532 | (EXTRACT_32BITS(tptr) >> 31), |
| 1533 | (EXTRACT_32BITS(tptr) >> 30) & 0x01, |
| 1534 | (EXTRACT_32BITS(tptr) >> 24) & 0x03f, |
| 1535 | (EXTRACT_32BITS(tptr)) & 0x0ffffff); |
| 1536 | |
| 1537 | tptr = tptr + 4; |
| 1538 | len = len - 4; |
| 1539 | stlv_len = stlv_len - 4; |
| 1540 | } |
| 1541 | |
| 1542 | break; |
| 1543 | |
| 1544 | default: |
| 1545 | break; |
| 1546 | } |
| 1547 | } |
| 1548 | return 0; |
| 1549 | |
| 1550 | trunctlv: |
| 1551 | printf("\n\t\t packet exceeded snapshot"); |
| 1552 | return(1); |
| 1553 | } |
| 1554 | |
| 1555 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1556 | /* shared routine for printing system, node and lsp-ids */ |
| 1557 | static char * |
| 1558 | isis_print_id(const u_int8_t *cp, int id_len) |
| 1559 | { |
| 1560 | int i; |
| 1561 | static char id[sizeof("xxxx.xxxx.xxxx.yy-zz")]; |
| 1562 | char *pos = id; |
| 1563 | |
| 1564 | for (i = 1; i <= SYSTEM_ID_LEN; i++) { |
| 1565 | snprintf(pos, sizeof(id) - (pos - id), "%02x", *cp++); |
| 1566 | pos += strlen(pos); |
| 1567 | if (i == 2 || i == 4) |
| 1568 | *pos++ = '.'; |
| 1569 | } |
| 1570 | if (id_len >= NODE_ID_LEN) { |
| 1571 | snprintf(pos, sizeof(id) - (pos - id), ".%02x", *cp++); |
| 1572 | pos += strlen(pos); |
| 1573 | } |
| 1574 | if (id_len == LSP_ID_LEN) |
| 1575 | snprintf(pos, sizeof(id) - (pos - id), "-%02x", *cp); |
| 1576 | return (id); |
| 1577 | } |
| 1578 | |
| 1579 | /* print the 4-byte metric block which is common found in the old-style TLVs */ |
| 1580 | static int |
| 1581 | isis_print_metric_block (const struct isis_metric_block *isis_metric_block) |
| 1582 | { |
| 1583 | printf(", Default Metric: %d, %s", |
| 1584 | ISIS_LSP_TLV_METRIC_VALUE(isis_metric_block->metric_default), |
| 1585 | ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_default) ? "External" : "Internal"); |
| 1586 | if (!ISIS_LSP_TLV_METRIC_SUPPORTED(isis_metric_block->metric_delay)) |
| 1587 | printf("\n\t\t Delay Metric: %d, %s", |
| 1588 | ISIS_LSP_TLV_METRIC_VALUE(isis_metric_block->metric_delay), |
| 1589 | ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_delay) ? "External" : "Internal"); |
| 1590 | if (!ISIS_LSP_TLV_METRIC_SUPPORTED(isis_metric_block->metric_expense)) |
| 1591 | printf("\n\t\t Expense Metric: %d, %s", |
| 1592 | ISIS_LSP_TLV_METRIC_VALUE(isis_metric_block->metric_expense), |
| 1593 | ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_expense) ? "External" : "Internal"); |
| 1594 | if (!ISIS_LSP_TLV_METRIC_SUPPORTED(isis_metric_block->metric_error)) |
| 1595 | printf("\n\t\t Error Metric: %d, %s", |
| 1596 | ISIS_LSP_TLV_METRIC_VALUE(isis_metric_block->metric_error), |
| 1597 | ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_error) ? "External" : "Internal"); |
| 1598 | |
| 1599 | return(1); /* everything is ok */ |
| 1600 | } |
| 1601 | |
| 1602 | static int |
| 1603 | isis_print_tlv_ip_reach (const u_int8_t *cp, const char *ident, int length) |
| 1604 | { |
| 1605 | int prefix_len; |
| 1606 | const struct isis_tlv_ip_reach *tlv_ip_reach; |
| 1607 | |
| 1608 | tlv_ip_reach = (const struct isis_tlv_ip_reach *)cp; |
| 1609 | |
| 1610 | while (length > 0) { |
| 1611 | if ((size_t)length < sizeof(*tlv_ip_reach)) { |
| 1612 | printf("short IPv4 Reachability (%d vs %lu)", |
| 1613 | length, |
| 1614 | (unsigned long)sizeof(*tlv_ip_reach)); |
| 1615 | return (0); |
| 1616 | } |
| 1617 | |
| 1618 | if (!TTEST(*tlv_ip_reach)) |
| 1619 | return (0); |
| 1620 | |
| 1621 | prefix_len = mask2plen(EXTRACT_32BITS(tlv_ip_reach->mask)); |
| 1622 | |
| 1623 | if (prefix_len == -1) |
| 1624 | printf("%sIPv4 prefix: %s mask %s", |
| 1625 | ident, |
| 1626 | ipaddr_string((tlv_ip_reach->prefix)), |
| 1627 | ipaddr_string((tlv_ip_reach->mask))); |
| 1628 | else |
| 1629 | printf("%sIPv4 prefix: %15s/%u", |
| 1630 | ident, |
| 1631 | ipaddr_string((tlv_ip_reach->prefix)), |
| 1632 | prefix_len); |
| 1633 | |
| 1634 | printf(", Distribution: %s, Metric: %u, %s", |
| 1635 | ISIS_LSP_TLV_METRIC_UPDOWN(tlv_ip_reach->isis_metric_block.metric_default) ? "down" : "up", |
| 1636 | ISIS_LSP_TLV_METRIC_VALUE(tlv_ip_reach->isis_metric_block.metric_default), |
| 1637 | ISIS_LSP_TLV_METRIC_IE(tlv_ip_reach->isis_metric_block.metric_default) ? "External" : "Internal"); |
| 1638 | |
| 1639 | if (!ISIS_LSP_TLV_METRIC_SUPPORTED(tlv_ip_reach->isis_metric_block.metric_delay)) |
| 1640 | printf("%s Delay Metric: %u, %s", |
| 1641 | ident, |
| 1642 | ISIS_LSP_TLV_METRIC_VALUE(tlv_ip_reach->isis_metric_block.metric_delay), |
| 1643 | ISIS_LSP_TLV_METRIC_IE(tlv_ip_reach->isis_metric_block.metric_delay) ? "External" : "Internal"); |
| 1644 | |
| 1645 | if (!ISIS_LSP_TLV_METRIC_SUPPORTED(tlv_ip_reach->isis_metric_block.metric_expense)) |
| 1646 | printf("%s Expense Metric: %u, %s", |
| 1647 | ident, |
| 1648 | ISIS_LSP_TLV_METRIC_VALUE(tlv_ip_reach->isis_metric_block.metric_expense), |
| 1649 | ISIS_LSP_TLV_METRIC_IE(tlv_ip_reach->isis_metric_block.metric_expense) ? "External" : "Internal"); |
| 1650 | |
| 1651 | if (!ISIS_LSP_TLV_METRIC_SUPPORTED(tlv_ip_reach->isis_metric_block.metric_error)) |
| 1652 | printf("%s Error Metric: %u, %s", |
| 1653 | ident, |
| 1654 | ISIS_LSP_TLV_METRIC_VALUE(tlv_ip_reach->isis_metric_block.metric_error), |
| 1655 | ISIS_LSP_TLV_METRIC_IE(tlv_ip_reach->isis_metric_block.metric_error) ? "External" : "Internal"); |
| 1656 | |
| 1657 | length -= sizeof(struct isis_tlv_ip_reach); |
| 1658 | tlv_ip_reach++; |
| 1659 | } |
| 1660 | return (1); |
| 1661 | } |
| 1662 | |
| 1663 | /* |
| 1664 | * this is the common IP-REACH subTLV decoder it is called |
| 1665 | * from various EXTD-IP REACH TLVs (135,235,236,237) |
| 1666 | */ |
| 1667 | |
| 1668 | static int |
| 1669 | isis_print_ip_reach_subtlv (const u_int8_t *tptr,int subt,int subl,const char *ident) { |
| 1670 | |
| 1671 | /* first lets see if we know the subTLVs name*/ |
| 1672 | printf("%s%s subTLV #%u, length: %u", |
| 1673 | ident, |
| 1674 | tok2str(isis_ext_ip_reach_subtlv_values, |
| 1675 | "unknown", |
| 1676 | subt), |
| 1677 | subt, |
| 1678 | subl); |
| 1679 | |
| 1680 | if (!TTEST2(*tptr,subl)) |
| 1681 | goto trunctlv; |
| 1682 | |
| 1683 | switch(subt) { |
| 1684 | case ISIS_SUBTLV_EXTD_IP_REACH_MGMT_PREFIX_COLOR: /* fall through */ |
| 1685 | case ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG32: |
| 1686 | while (subl >= 4) { |
| 1687 | printf(", 0x%08x (=%u)", |
| 1688 | EXTRACT_32BITS(tptr), |
| 1689 | EXTRACT_32BITS(tptr)); |
| 1690 | tptr+=4; |
| 1691 | subl-=4; |
| 1692 | } |
| 1693 | break; |
| 1694 | case ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG64: |
| 1695 | while (subl >= 8) { |
| 1696 | printf(", 0x%08x%08x", |
| 1697 | EXTRACT_32BITS(tptr), |
| 1698 | EXTRACT_32BITS(tptr+4)); |
| 1699 | tptr+=8; |
| 1700 | subl-=8; |
| 1701 | } |
| 1702 | break; |
| 1703 | default: |
| 1704 | if(!print_unknown_data(tptr,"\n\t\t ", |
| 1705 | subl)) |
| 1706 | return(0); |
| 1707 | break; |
| 1708 | } |
| 1709 | return(1); |
| 1710 | |
| 1711 | trunctlv: |
| 1712 | printf("%spacket exceeded snapshot",ident); |
| 1713 | return(0); |
| 1714 | } |
| 1715 | |
| 1716 | /* |
| 1717 | * this is the common IS-REACH subTLV decoder it is called |
| 1718 | * from isis_print_ext_is_reach() |
| 1719 | */ |
| 1720 | |
| 1721 | static int |
| 1722 | isis_print_is_reach_subtlv (const u_int8_t *tptr,u_int subt,u_int subl,const char *ident) { |
| 1723 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1724 | u_int te_class,priority_level,gmpls_switch_cap; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1725 | union { /* int to float conversion buffer for several subTLVs */ |
| 1726 | float f; |
| 1727 | u_int32_t i; |
| 1728 | } bw; |
| 1729 | |
| 1730 | /* first lets see if we know the subTLVs name*/ |
| 1731 | printf("%s%s subTLV #%u, length: %u", |
| 1732 | ident, |
| 1733 | tok2str(isis_ext_is_reach_subtlv_values, |
| 1734 | "unknown", |
| 1735 | subt), |
| 1736 | subt, |
| 1737 | subl); |
| 1738 | |
| 1739 | if (!TTEST2(*tptr,subl)) |
| 1740 | goto trunctlv; |
| 1741 | |
| 1742 | switch(subt) { |
| 1743 | case ISIS_SUBTLV_EXT_IS_REACH_ADMIN_GROUP: |
| 1744 | case ISIS_SUBTLV_EXT_IS_REACH_LINK_LOCAL_REMOTE_ID: |
| 1745 | case ISIS_SUBTLV_EXT_IS_REACH_LINK_REMOTE_ID: |
| 1746 | if (subl >= 4) { |
| 1747 | printf(", 0x%08x", EXTRACT_32BITS(tptr)); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1748 | if (subl == 8) /* rfc4205 */ |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1749 | printf(", 0x%08x", EXTRACT_32BITS(tptr+4)); |
| 1750 | } |
| 1751 | break; |
| 1752 | case ISIS_SUBTLV_EXT_IS_REACH_IPV4_INTF_ADDR: |
| 1753 | case ISIS_SUBTLV_EXT_IS_REACH_IPV4_NEIGHBOR_ADDR: |
| 1754 | if (subl >= sizeof(struct in_addr)) |
| 1755 | printf(", %s", ipaddr_string(tptr)); |
| 1756 | break; |
| 1757 | case ISIS_SUBTLV_EXT_IS_REACH_MAX_LINK_BW : |
| 1758 | case ISIS_SUBTLV_EXT_IS_REACH_RESERVABLE_BW: |
| 1759 | if (subl >= 4) { |
| 1760 | bw.i = EXTRACT_32BITS(tptr); |
| 1761 | printf(", %.3f Mbps", bw.f*8/1000000 ); |
| 1762 | } |
| 1763 | break; |
| 1764 | case ISIS_SUBTLV_EXT_IS_REACH_UNRESERVED_BW : |
| 1765 | if (subl >= 32) { |
| 1766 | for (te_class = 0; te_class < 8; te_class++) { |
| 1767 | bw.i = EXTRACT_32BITS(tptr); |
| 1768 | printf("%s TE-Class %u: %.3f Mbps", |
| 1769 | ident, |
| 1770 | te_class, |
| 1771 | bw.f*8/1000000 ); |
| 1772 | tptr+=4; |
| 1773 | } |
| 1774 | } |
| 1775 | break; |
| 1776 | case ISIS_SUBTLV_EXT_IS_REACH_BW_CONSTRAINTS: /* fall through */ |
| 1777 | case ISIS_SUBTLV_EXT_IS_REACH_BW_CONSTRAINTS_OLD: |
| 1778 | printf("%sBandwidth Constraints Model ID: %s (%u)", |
| 1779 | ident, |
| 1780 | tok2str(diffserv_te_bc_values, "unknown", *tptr), |
| 1781 | *tptr); |
| 1782 | tptr++; |
| 1783 | /* decode BCs until the subTLV ends */ |
| 1784 | for (te_class = 0; te_class < (subl-1)/4; te_class++) { |
| 1785 | bw.i = EXTRACT_32BITS(tptr); |
| 1786 | printf("%s Bandwidth constraint CT%u: %.3f Mbps", |
| 1787 | ident, |
| 1788 | te_class, |
| 1789 | bw.f*8/1000000 ); |
| 1790 | tptr+=4; |
| 1791 | } |
| 1792 | break; |
| 1793 | case ISIS_SUBTLV_EXT_IS_REACH_TE_METRIC: |
| 1794 | if (subl >= 3) |
| 1795 | printf(", %u", EXTRACT_24BITS(tptr)); |
| 1796 | break; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1797 | case ISIS_SUBTLV_EXT_IS_REACH_LINK_ATTRIBUTE: |
| 1798 | if (subl == 2) { |
| 1799 | printf(", [ %s ] (0x%04x)", |
| 1800 | bittok2str(isis_subtlv_link_attribute_values, |
| 1801 | "Unknown", |
| 1802 | EXTRACT_16BITS(tptr)), |
| 1803 | EXTRACT_16BITS(tptr)); |
| 1804 | } |
| 1805 | break; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1806 | case ISIS_SUBTLV_EXT_IS_REACH_LINK_PROTECTION_TYPE: |
| 1807 | if (subl >= 2) { |
| 1808 | printf(", %s, Priority %u", |
| 1809 | bittok2str(gmpls_link_prot_values, "none", *tptr), |
| 1810 | *(tptr+1)); |
| 1811 | } |
| 1812 | break; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1813 | case ISIS_SUBTLV_SPB_METRIC: |
| 1814 | if (subl >= 6) { |
| 1815 | printf (", LM: %u", EXTRACT_24BITS(tptr)); |
| 1816 | tptr=tptr+3; |
| 1817 | printf (", P: %u", *(tptr)); |
| 1818 | tptr++; |
| 1819 | printf (", P-ID: %u", EXTRACT_16BITS(tptr)); |
| 1820 | } |
| 1821 | break; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1822 | case ISIS_SUBTLV_EXT_IS_REACH_INTF_SW_CAP_DESCR: |
| 1823 | if (subl >= 36) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1824 | gmpls_switch_cap = *tptr; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1825 | printf("%s Interface Switching Capability:%s", |
| 1826 | ident, |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1827 | tok2str(gmpls_switch_cap_values, "Unknown", gmpls_switch_cap)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1828 | printf(", LSP Encoding: %s", |
| 1829 | tok2str(gmpls_encoding_values, "Unknown", *(tptr+1))); |
| 1830 | tptr+=4; |
| 1831 | printf("%s Max LSP Bandwidth:",ident); |
| 1832 | for (priority_level = 0; priority_level < 8; priority_level++) { |
| 1833 | bw.i = EXTRACT_32BITS(tptr); |
| 1834 | printf("%s priority level %d: %.3f Mbps", |
| 1835 | ident, |
| 1836 | priority_level, |
| 1837 | bw.f*8/1000000 ); |
| 1838 | tptr+=4; |
| 1839 | } |
| 1840 | subl-=36; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1841 | switch (gmpls_switch_cap) { |
| 1842 | case GMPLS_PSC1: |
| 1843 | case GMPLS_PSC2: |
| 1844 | case GMPLS_PSC3: |
| 1845 | case GMPLS_PSC4: |
| 1846 | bw.i = EXTRACT_32BITS(tptr); |
| 1847 | printf("%s Min LSP Bandwidth: %.3f Mbps", ident, bw.f*8/1000000); |
| 1848 | printf("%s Interface MTU: %u", ident, EXTRACT_16BITS(tptr+4)); |
| 1849 | break; |
| 1850 | case GMPLS_TSC: |
| 1851 | bw.i = EXTRACT_32BITS(tptr); |
| 1852 | printf("%s Min LSP Bandwidth: %.3f Mbps", ident, bw.f*8/1000000); |
| 1853 | printf("%s Indication %s", ident, |
| 1854 | tok2str(gmpls_switch_cap_tsc_indication_values, "Unknown (%u)", *(tptr+4))); |
| 1855 | break; |
| 1856 | default: |
| 1857 | /* there is some optional stuff left to decode but this is as of yet |
| 1858 | not specified so just lets hexdump what is left */ |
| 1859 | if(subl>0){ |
| 1860 | if(!print_unknown_data(tptr,"\n\t\t ", |
| 1861 | subl)) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1862 | return(0); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1863 | } |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1864 | } |
| 1865 | } |
| 1866 | break; |
| 1867 | default: |
| 1868 | if(!print_unknown_data(tptr,"\n\t\t ", |
| 1869 | subl)) |
| 1870 | return(0); |
| 1871 | break; |
| 1872 | } |
| 1873 | return(1); |
| 1874 | |
| 1875 | trunctlv: |
| 1876 | printf("%spacket exceeded snapshot",ident); |
| 1877 | return(0); |
| 1878 | } |
| 1879 | |
| 1880 | |
| 1881 | /* |
| 1882 | * this is the common IS-REACH decoder it is called |
| 1883 | * from various EXTD-IS REACH style TLVs (22,24,222) |
| 1884 | */ |
| 1885 | |
| 1886 | static int |
| 1887 | isis_print_ext_is_reach (const u_int8_t *tptr,const char *ident, int tlv_type) { |
| 1888 | |
| 1889 | char ident_buffer[20]; |
| 1890 | int subtlv_type,subtlv_len,subtlv_sum_len; |
| 1891 | int proc_bytes = 0; /* how many bytes did we process ? */ |
| 1892 | |
| 1893 | if (!TTEST2(*tptr, NODE_ID_LEN)) |
| 1894 | return(0); |
| 1895 | |
| 1896 | printf("%sIS Neighbor: %s", ident, isis_print_id(tptr, NODE_ID_LEN)); |
| 1897 | tptr+=(NODE_ID_LEN); |
| 1898 | |
| 1899 | if (tlv_type != ISIS_TLV_IS_ALIAS_ID) { /* the Alias TLV Metric field is implicit 0 */ |
| 1900 | if (!TTEST2(*tptr, 3)) /* and is therefore skipped */ |
| 1901 | return(0); |
| 1902 | printf(", Metric: %d",EXTRACT_24BITS(tptr)); |
| 1903 | tptr+=3; |
| 1904 | } |
| 1905 | |
| 1906 | if (!TTEST2(*tptr, 1)) |
| 1907 | return(0); |
| 1908 | subtlv_sum_len=*(tptr++); /* read out subTLV length */ |
| 1909 | proc_bytes=NODE_ID_LEN+3+1; |
| 1910 | printf(", %ssub-TLVs present",subtlv_sum_len ? "" : "no "); |
| 1911 | if (subtlv_sum_len) { |
| 1912 | printf(" (%u)",subtlv_sum_len); |
| 1913 | while (subtlv_sum_len>0) { |
| 1914 | if (!TTEST2(*tptr,2)) |
| 1915 | return(0); |
| 1916 | subtlv_type=*(tptr++); |
| 1917 | subtlv_len=*(tptr++); |
| 1918 | /* prepend the ident string */ |
| 1919 | snprintf(ident_buffer, sizeof(ident_buffer), "%s ",ident); |
| 1920 | if(!isis_print_is_reach_subtlv(tptr,subtlv_type,subtlv_len,ident_buffer)) |
| 1921 | return(0); |
| 1922 | tptr+=subtlv_len; |
| 1923 | subtlv_sum_len-=(subtlv_len+2); |
| 1924 | proc_bytes+=(subtlv_len+2); |
| 1925 | } |
| 1926 | } |
| 1927 | return(proc_bytes); |
| 1928 | } |
| 1929 | |
| 1930 | /* |
| 1931 | * this is the common Multi Topology ID decoder |
| 1932 | * it is called from various MT-TLVs (222,229,235,237) |
| 1933 | */ |
| 1934 | |
| 1935 | static int |
| 1936 | isis_print_mtid (const u_int8_t *tptr,const char *ident) { |
| 1937 | |
| 1938 | if (!TTEST2(*tptr, 2)) |
| 1939 | return(0); |
| 1940 | |
| 1941 | printf("%s%s", |
| 1942 | ident, |
| 1943 | tok2str(isis_mt_values, |
| 1944 | "Reserved for IETF Consensus", |
| 1945 | ISIS_MASK_MTID(EXTRACT_16BITS(tptr)))); |
| 1946 | |
| 1947 | printf(" Topology (0x%03x), Flags: [%s]", |
| 1948 | ISIS_MASK_MTID(EXTRACT_16BITS(tptr)), |
| 1949 | bittok2str(isis_mt_flag_values, "none",ISIS_MASK_MTFLAGS(EXTRACT_16BITS(tptr)))); |
| 1950 | |
| 1951 | return(2); |
| 1952 | } |
| 1953 | |
| 1954 | /* |
| 1955 | * this is the common extended IP reach decoder |
| 1956 | * it is called from TLVs (135,235,236,237) |
| 1957 | * we process the TLV and optional subTLVs and return |
| 1958 | * the amount of processed bytes |
| 1959 | */ |
| 1960 | |
| 1961 | static int |
| 1962 | isis_print_extd_ip_reach (const u_int8_t *tptr, const char *ident, u_int16_t afi) { |
| 1963 | |
| 1964 | char ident_buffer[20]; |
| 1965 | #ifdef INET6 |
| 1966 | u_int8_t prefix[sizeof(struct in6_addr)]; /* shared copy buffer for IPv4 and IPv6 prefixes */ |
| 1967 | #else |
| 1968 | u_int8_t prefix[sizeof(struct in_addr)]; /* shared copy buffer for IPv4 prefixes */ |
| 1969 | #endif |
| 1970 | u_int metric, status_byte, bit_length, byte_length, sublen, processed, subtlvtype, subtlvlen; |
| 1971 | |
| 1972 | if (!TTEST2(*tptr, 4)) |
| 1973 | return (0); |
| 1974 | metric = EXTRACT_32BITS(tptr); |
| 1975 | processed=4; |
| 1976 | tptr+=4; |
| 1977 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1978 | if (afi == AF_INET) { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1979 | if (!TTEST2(*tptr, 1)) /* fetch status byte */ |
| 1980 | return (0); |
| 1981 | status_byte=*(tptr++); |
| 1982 | bit_length = status_byte&0x3f; |
| 1983 | if (bit_length > 32) { |
| 1984 | printf("%sIPv4 prefix: bad bit length %u", |
| 1985 | ident, |
| 1986 | bit_length); |
| 1987 | return (0); |
| 1988 | } |
| 1989 | processed++; |
| 1990 | #ifdef INET6 |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1991 | } else if (afi == AF_INET6) { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1992 | if (!TTEST2(*tptr, 1)) /* fetch status & prefix_len byte */ |
| 1993 | return (0); |
| 1994 | status_byte=*(tptr++); |
| 1995 | bit_length=*(tptr++); |
| 1996 | if (bit_length > 128) { |
| 1997 | printf("%sIPv6 prefix: bad bit length %u", |
| 1998 | ident, |
| 1999 | bit_length); |
| 2000 | return (0); |
| 2001 | } |
| 2002 | processed+=2; |
| 2003 | #endif |
| 2004 | } else |
| 2005 | return (0); /* somebody is fooling us */ |
| 2006 | |
| 2007 | byte_length = (bit_length + 7) / 8; /* prefix has variable length encoding */ |
| 2008 | |
| 2009 | if (!TTEST2(*tptr, byte_length)) |
| 2010 | return (0); |
| 2011 | memset(prefix, 0, sizeof prefix); /* clear the copy buffer */ |
| 2012 | memcpy(prefix,tptr,byte_length); /* copy as much as is stored in the TLV */ |
| 2013 | tptr+=byte_length; |
| 2014 | processed+=byte_length; |
| 2015 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2016 | if (afi == AF_INET) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2017 | printf("%sIPv4 prefix: %15s/%u", |
| 2018 | ident, |
| 2019 | ipaddr_string(prefix), |
| 2020 | bit_length); |
| 2021 | #ifdef INET6 |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2022 | if (afi == AF_INET6) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2023 | printf("%sIPv6 prefix: %s/%u", |
| 2024 | ident, |
| 2025 | ip6addr_string(prefix), |
| 2026 | bit_length); |
| 2027 | #endif |
| 2028 | |
| 2029 | printf(", Distribution: %s, Metric: %u", |
| 2030 | ISIS_MASK_TLV_EXTD_IP_UPDOWN(status_byte) ? "down" : "up", |
| 2031 | metric); |
| 2032 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2033 | if (afi == AF_INET && ISIS_MASK_TLV_EXTD_IP_SUBTLV(status_byte)) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2034 | printf(", sub-TLVs present"); |
| 2035 | #ifdef INET6 |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2036 | if (afi == AF_INET6) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2037 | printf(", %s%s", |
| 2038 | ISIS_MASK_TLV_EXTD_IP6_IE(status_byte) ? "External" : "Internal", |
| 2039 | ISIS_MASK_TLV_EXTD_IP6_SUBTLV(status_byte) ? ", sub-TLVs present" : ""); |
| 2040 | #endif |
| 2041 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2042 | if ((afi == AF_INET && ISIS_MASK_TLV_EXTD_IP_SUBTLV(status_byte)) |
| 2043 | #ifdef INET6 |
| 2044 | || (afi == AF_INET6 && ISIS_MASK_TLV_EXTD_IP6_SUBTLV(status_byte)) |
| 2045 | #endif |
| 2046 | ) { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2047 | /* assume that one prefix can hold more |
| 2048 | than one subTLV - therefore the first byte must reflect |
| 2049 | the aggregate bytecount of the subTLVs for this prefix |
| 2050 | */ |
| 2051 | if (!TTEST2(*tptr, 1)) |
| 2052 | return (0); |
| 2053 | sublen=*(tptr++); |
| 2054 | processed+=sublen+1; |
| 2055 | printf(" (%u)",sublen); /* print out subTLV length */ |
| 2056 | |
| 2057 | while (sublen>0) { |
| 2058 | if (!TTEST2(*tptr,2)) |
| 2059 | return (0); |
| 2060 | subtlvtype=*(tptr++); |
| 2061 | subtlvlen=*(tptr++); |
| 2062 | /* prepend the ident string */ |
| 2063 | snprintf(ident_buffer, sizeof(ident_buffer), "%s ",ident); |
| 2064 | if(!isis_print_ip_reach_subtlv(tptr,subtlvtype,subtlvlen,ident_buffer)) |
| 2065 | return(0); |
| 2066 | tptr+=subtlvlen; |
| 2067 | sublen-=(subtlvlen+2); |
| 2068 | } |
| 2069 | } |
| 2070 | return (processed); |
| 2071 | } |
| 2072 | |
| 2073 | /* |
| 2074 | * isis_print |
| 2075 | * Decode IS-IS packets. Return 0 on error. |
| 2076 | */ |
| 2077 | |
| 2078 | static int isis_print (const u_int8_t *p, u_int length) |
| 2079 | { |
| 2080 | const struct isis_common_header *isis_header; |
| 2081 | |
| 2082 | const struct isis_iih_lan_header *header_iih_lan; |
| 2083 | const struct isis_iih_ptp_header *header_iih_ptp; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2084 | struct isis_lsp_header *header_lsp; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2085 | const struct isis_csnp_header *header_csnp; |
| 2086 | const struct isis_psnp_header *header_psnp; |
| 2087 | |
| 2088 | const struct isis_tlv_lsp *tlv_lsp; |
| 2089 | const struct isis_tlv_ptp_adj *tlv_ptp_adj; |
| 2090 | const struct isis_tlv_is_reach *tlv_is_reach; |
| 2091 | const struct isis_tlv_es_reach *tlv_es_reach; |
| 2092 | |
| 2093 | u_int8_t pdu_type, max_area, id_length, tlv_type, tlv_len, tmp, alen, lan_alen, prefix_len; |
| 2094 | u_int8_t ext_is_len, ext_ip_len, mt_len; |
| 2095 | const u_int8_t *optr, *pptr, *tptr; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2096 | u_short packet_len,pdu_len, key_id; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2097 | u_int i,vendor_id; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2098 | int sigcheck; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2099 | |
| 2100 | packet_len=length; |
| 2101 | optr = p; /* initialize the _o_riginal pointer to the packet start - |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2102 | need it for parsing the checksum TLV and authentication |
| 2103 | TLV verification */ |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2104 | isis_header = (const struct isis_common_header *)p; |
| 2105 | TCHECK(*isis_header); |
| 2106 | pptr = p+(ISIS_COMMON_HEADER_SIZE); |
| 2107 | header_iih_lan = (const struct isis_iih_lan_header *)pptr; |
| 2108 | header_iih_ptp = (const struct isis_iih_ptp_header *)pptr; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2109 | header_lsp = (struct isis_lsp_header *)pptr; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2110 | header_csnp = (const struct isis_csnp_header *)pptr; |
| 2111 | header_psnp = (const struct isis_psnp_header *)pptr; |
| 2112 | |
| 2113 | if (!eflag) |
| 2114 | printf("IS-IS"); |
| 2115 | |
| 2116 | /* |
| 2117 | * Sanity checking of the header. |
| 2118 | */ |
| 2119 | |
| 2120 | if (isis_header->version != ISIS_VERSION) { |
| 2121 | printf("version %d packet not supported", isis_header->version); |
| 2122 | return (0); |
| 2123 | } |
| 2124 | |
| 2125 | if ((isis_header->id_length != SYSTEM_ID_LEN) && (isis_header->id_length != 0)) { |
| 2126 | printf("system ID length of %d is not supported", |
| 2127 | isis_header->id_length); |
| 2128 | return (0); |
| 2129 | } |
| 2130 | |
| 2131 | if (isis_header->pdu_version != ISIS_VERSION) { |
| 2132 | printf("version %d packet not supported", isis_header->pdu_version); |
| 2133 | return (0); |
| 2134 | } |
| 2135 | |
| 2136 | max_area = isis_header->max_area; |
| 2137 | switch(max_area) { |
| 2138 | case 0: |
| 2139 | max_area = 3; /* silly shit */ |
| 2140 | break; |
| 2141 | case 255: |
| 2142 | printf("bad packet -- 255 areas"); |
| 2143 | return (0); |
| 2144 | default: |
| 2145 | break; |
| 2146 | } |
| 2147 | |
| 2148 | id_length = isis_header->id_length; |
| 2149 | switch(id_length) { |
| 2150 | case 0: |
| 2151 | id_length = 6; /* silly shit again */ |
| 2152 | break; |
| 2153 | case 1: /* 1-8 are valid sys-ID lenghts */ |
| 2154 | case 2: |
| 2155 | case 3: |
| 2156 | case 4: |
| 2157 | case 5: |
| 2158 | case 6: |
| 2159 | case 7: |
| 2160 | case 8: |
| 2161 | break; |
| 2162 | case 255: |
| 2163 | id_length = 0; /* entirely useless */ |
| 2164 | break; |
| 2165 | default: |
| 2166 | break; |
| 2167 | } |
| 2168 | |
| 2169 | /* toss any non 6-byte sys-ID len PDUs */ |
| 2170 | if (id_length != 6 ) { |
| 2171 | printf("bad packet -- illegal sys-ID length (%u)", id_length); |
| 2172 | return (0); |
| 2173 | } |
| 2174 | |
| 2175 | pdu_type=isis_header->pdu_type; |
| 2176 | |
| 2177 | /* in non-verbose mode print the basic PDU Type plus PDU specific brief information*/ |
| 2178 | if (vflag < 1) { |
| 2179 | printf("%s%s", |
| 2180 | eflag ? "" : ", ", |
| 2181 | tok2str(isis_pdu_values,"unknown PDU-Type %u",pdu_type)); |
| 2182 | |
| 2183 | switch (pdu_type) { |
| 2184 | |
| 2185 | case ISIS_PDU_L1_LAN_IIH: |
| 2186 | case ISIS_PDU_L2_LAN_IIH: |
| 2187 | printf(", src-id %s", |
| 2188 | isis_print_id(header_iih_lan->source_id,SYSTEM_ID_LEN)); |
| 2189 | printf(", lan-id %s, prio %u", |
| 2190 | isis_print_id(header_iih_lan->lan_id,NODE_ID_LEN), |
| 2191 | header_iih_lan->priority); |
| 2192 | break; |
| 2193 | case ISIS_PDU_PTP_IIH: |
| 2194 | printf(", src-id %s", isis_print_id(header_iih_ptp->source_id,SYSTEM_ID_LEN)); |
| 2195 | break; |
| 2196 | case ISIS_PDU_L1_LSP: |
| 2197 | case ISIS_PDU_L2_LSP: |
| 2198 | printf(", lsp-id %s, seq 0x%08x, lifetime %5us", |
| 2199 | isis_print_id(header_lsp->lsp_id, LSP_ID_LEN), |
| 2200 | EXTRACT_32BITS(header_lsp->sequence_number), |
| 2201 | EXTRACT_16BITS(header_lsp->remaining_lifetime)); |
| 2202 | break; |
| 2203 | case ISIS_PDU_L1_CSNP: |
| 2204 | case ISIS_PDU_L2_CSNP: |
| 2205 | printf(", src-id %s", isis_print_id(header_csnp->source_id,NODE_ID_LEN)); |
| 2206 | break; |
| 2207 | case ISIS_PDU_L1_PSNP: |
| 2208 | case ISIS_PDU_L2_PSNP: |
| 2209 | printf(", src-id %s", isis_print_id(header_psnp->source_id,NODE_ID_LEN)); |
| 2210 | break; |
| 2211 | |
| 2212 | } |
| 2213 | printf(", length %u", length); |
| 2214 | |
| 2215 | return(1); |
| 2216 | } |
| 2217 | |
| 2218 | /* ok they seem to want to know everything - lets fully decode it */ |
| 2219 | printf("%slength %u", eflag ? "" : ", ",length); |
| 2220 | |
| 2221 | printf("\n\t%s, hlen: %u, v: %u, pdu-v: %u, sys-id-len: %u (%u), max-area: %u (%u)", |
| 2222 | tok2str(isis_pdu_values, |
| 2223 | "unknown, type %u", |
| 2224 | pdu_type), |
| 2225 | isis_header->fixed_len, |
| 2226 | isis_header->version, |
| 2227 | isis_header->pdu_version, |
| 2228 | id_length, |
| 2229 | isis_header->id_length, |
| 2230 | max_area, |
| 2231 | isis_header->max_area); |
| 2232 | |
| 2233 | if (vflag > 1) { |
| 2234 | if(!print_unknown_data(optr,"\n\t",8)) /* provide the _o_riginal pointer */ |
| 2235 | return(0); /* for optionally debugging the common header */ |
| 2236 | } |
| 2237 | |
| 2238 | switch (pdu_type) { |
| 2239 | |
| 2240 | case ISIS_PDU_L1_LAN_IIH: |
| 2241 | case ISIS_PDU_L2_LAN_IIH: |
| 2242 | if (isis_header->fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_LAN_HEADER_SIZE)) { |
| 2243 | printf(", bogus fixed header length %u should be %lu", |
| 2244 | isis_header->fixed_len, (unsigned long)ISIS_IIH_LAN_HEADER_SIZE); |
| 2245 | return (0); |
| 2246 | } |
| 2247 | |
| 2248 | pdu_len=EXTRACT_16BITS(header_iih_lan->pdu_len); |
| 2249 | if (packet_len>pdu_len) { |
| 2250 | packet_len=pdu_len; /* do TLV decoding as long as it makes sense */ |
| 2251 | length=pdu_len; |
| 2252 | } |
| 2253 | |
| 2254 | TCHECK(*header_iih_lan); |
| 2255 | printf("\n\t source-id: %s, holding time: %us, Flags: [%s]", |
| 2256 | isis_print_id(header_iih_lan->source_id,SYSTEM_ID_LEN), |
| 2257 | EXTRACT_16BITS(header_iih_lan->holding_time), |
| 2258 | tok2str(isis_iih_circuit_type_values, |
| 2259 | "unknown circuit type 0x%02x", |
| 2260 | header_iih_lan->circuit_type)); |
| 2261 | |
| 2262 | printf("\n\t lan-id: %s, Priority: %u, PDU length: %u", |
| 2263 | isis_print_id(header_iih_lan->lan_id, NODE_ID_LEN), |
| 2264 | (header_iih_lan->priority) & ISIS_LAN_PRIORITY_MASK, |
| 2265 | pdu_len); |
| 2266 | |
| 2267 | if (vflag > 1) { |
| 2268 | if(!print_unknown_data(pptr,"\n\t ",ISIS_IIH_LAN_HEADER_SIZE)) |
| 2269 | return(0); |
| 2270 | } |
| 2271 | |
| 2272 | packet_len -= (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_LAN_HEADER_SIZE); |
| 2273 | pptr = p + (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_LAN_HEADER_SIZE); |
| 2274 | break; |
| 2275 | |
| 2276 | case ISIS_PDU_PTP_IIH: |
| 2277 | if (isis_header->fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_PTP_HEADER_SIZE)) { |
| 2278 | printf(", bogus fixed header length %u should be %lu", |
| 2279 | isis_header->fixed_len, (unsigned long)ISIS_IIH_PTP_HEADER_SIZE); |
| 2280 | return (0); |
| 2281 | } |
| 2282 | |
| 2283 | pdu_len=EXTRACT_16BITS(header_iih_ptp->pdu_len); |
| 2284 | if (packet_len>pdu_len) { |
| 2285 | packet_len=pdu_len; /* do TLV decoding as long as it makes sense */ |
| 2286 | length=pdu_len; |
| 2287 | } |
| 2288 | |
| 2289 | TCHECK(*header_iih_ptp); |
| 2290 | printf("\n\t source-id: %s, holding time: %us, Flags: [%s]", |
| 2291 | isis_print_id(header_iih_ptp->source_id,SYSTEM_ID_LEN), |
| 2292 | EXTRACT_16BITS(header_iih_ptp->holding_time), |
| 2293 | tok2str(isis_iih_circuit_type_values, |
| 2294 | "unknown circuit type 0x%02x", |
| 2295 | header_iih_ptp->circuit_type)); |
| 2296 | |
| 2297 | printf("\n\t circuit-id: 0x%02x, PDU length: %u", |
| 2298 | header_iih_ptp->circuit_id, |
| 2299 | pdu_len); |
| 2300 | |
| 2301 | if (vflag > 1) { |
| 2302 | if(!print_unknown_data(pptr,"\n\t ",ISIS_IIH_PTP_HEADER_SIZE)) |
| 2303 | return(0); |
| 2304 | } |
| 2305 | |
| 2306 | packet_len -= (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_PTP_HEADER_SIZE); |
| 2307 | pptr = p + (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_PTP_HEADER_SIZE); |
| 2308 | break; |
| 2309 | |
| 2310 | case ISIS_PDU_L1_LSP: |
| 2311 | case ISIS_PDU_L2_LSP: |
| 2312 | if (isis_header->fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_LSP_HEADER_SIZE)) { |
| 2313 | printf(", bogus fixed header length %u should be %lu", |
| 2314 | isis_header->fixed_len, (unsigned long)ISIS_LSP_HEADER_SIZE); |
| 2315 | return (0); |
| 2316 | } |
| 2317 | |
| 2318 | pdu_len=EXTRACT_16BITS(header_lsp->pdu_len); |
| 2319 | if (packet_len>pdu_len) { |
| 2320 | packet_len=pdu_len; /* do TLV decoding as long as it makes sense */ |
| 2321 | length=pdu_len; |
| 2322 | } |
| 2323 | |
| 2324 | TCHECK(*header_lsp); |
| 2325 | printf("\n\t lsp-id: %s, seq: 0x%08x, lifetime: %5us\n\t chksum: 0x%04x", |
| 2326 | isis_print_id(header_lsp->lsp_id, LSP_ID_LEN), |
| 2327 | EXTRACT_32BITS(header_lsp->sequence_number), |
| 2328 | EXTRACT_16BITS(header_lsp->remaining_lifetime), |
| 2329 | EXTRACT_16BITS(header_lsp->checksum)); |
| 2330 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2331 | |
| 2332 | osi_print_cksum((u_int8_t *)header_lsp->lsp_id, |
| 2333 | EXTRACT_16BITS(header_lsp->checksum), 12, length-12); |
| 2334 | |
| 2335 | /* |
| 2336 | * Clear checksum and lifetime prior to signature verification. |
| 2337 | */ |
| 2338 | header_lsp->checksum[0] = 0; |
| 2339 | header_lsp->checksum[1] = 0; |
| 2340 | header_lsp->remaining_lifetime[0] = 0; |
| 2341 | header_lsp->remaining_lifetime[1] = 0; |
| 2342 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2343 | |
| 2344 | printf(", PDU length: %u, Flags: [ %s", |
| 2345 | pdu_len, |
| 2346 | ISIS_MASK_LSP_OL_BIT(header_lsp->typeblock) ? "Overload bit set, " : ""); |
| 2347 | |
| 2348 | if (ISIS_MASK_LSP_ATT_BITS(header_lsp->typeblock)) { |
| 2349 | printf("%s", ISIS_MASK_LSP_ATT_DEFAULT_BIT(header_lsp->typeblock) ? "default " : ""); |
| 2350 | printf("%s", ISIS_MASK_LSP_ATT_DELAY_BIT(header_lsp->typeblock) ? "delay " : ""); |
| 2351 | printf("%s", ISIS_MASK_LSP_ATT_EXPENSE_BIT(header_lsp->typeblock) ? "expense " : ""); |
| 2352 | printf("%s", ISIS_MASK_LSP_ATT_ERROR_BIT(header_lsp->typeblock) ? "error " : ""); |
| 2353 | printf("ATT bit set, "); |
| 2354 | } |
| 2355 | printf("%s", ISIS_MASK_LSP_PARTITION_BIT(header_lsp->typeblock) ? "P bit set, " : ""); |
| 2356 | printf("%s ]", tok2str(isis_lsp_istype_values,"Unknown(0x%x)",ISIS_MASK_LSP_ISTYPE_BITS(header_lsp->typeblock))); |
| 2357 | |
| 2358 | if (vflag > 1) { |
| 2359 | if(!print_unknown_data(pptr,"\n\t ",ISIS_LSP_HEADER_SIZE)) |
| 2360 | return(0); |
| 2361 | } |
| 2362 | |
| 2363 | packet_len -= (ISIS_COMMON_HEADER_SIZE+ISIS_LSP_HEADER_SIZE); |
| 2364 | pptr = p + (ISIS_COMMON_HEADER_SIZE+ISIS_LSP_HEADER_SIZE); |
| 2365 | break; |
| 2366 | |
| 2367 | case ISIS_PDU_L1_CSNP: |
| 2368 | case ISIS_PDU_L2_CSNP: |
| 2369 | if (isis_header->fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_CSNP_HEADER_SIZE)) { |
| 2370 | printf(", bogus fixed header length %u should be %lu", |
| 2371 | isis_header->fixed_len, (unsigned long)ISIS_CSNP_HEADER_SIZE); |
| 2372 | return (0); |
| 2373 | } |
| 2374 | |
| 2375 | pdu_len=EXTRACT_16BITS(header_csnp->pdu_len); |
| 2376 | if (packet_len>pdu_len) { |
| 2377 | packet_len=pdu_len; /* do TLV decoding as long as it makes sense */ |
| 2378 | length=pdu_len; |
| 2379 | } |
| 2380 | |
| 2381 | TCHECK(*header_csnp); |
| 2382 | printf("\n\t source-id: %s, PDU length: %u", |
| 2383 | isis_print_id(header_csnp->source_id, NODE_ID_LEN), |
| 2384 | pdu_len); |
| 2385 | printf("\n\t start lsp-id: %s", |
| 2386 | isis_print_id(header_csnp->start_lsp_id, LSP_ID_LEN)); |
| 2387 | printf("\n\t end lsp-id: %s", |
| 2388 | isis_print_id(header_csnp->end_lsp_id, LSP_ID_LEN)); |
| 2389 | |
| 2390 | if (vflag > 1) { |
| 2391 | if(!print_unknown_data(pptr,"\n\t ",ISIS_CSNP_HEADER_SIZE)) |
| 2392 | return(0); |
| 2393 | } |
| 2394 | |
| 2395 | packet_len -= (ISIS_COMMON_HEADER_SIZE+ISIS_CSNP_HEADER_SIZE); |
| 2396 | pptr = p + (ISIS_COMMON_HEADER_SIZE+ISIS_CSNP_HEADER_SIZE); |
| 2397 | break; |
| 2398 | |
| 2399 | case ISIS_PDU_L1_PSNP: |
| 2400 | case ISIS_PDU_L2_PSNP: |
| 2401 | if (isis_header->fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_PSNP_HEADER_SIZE)) { |
| 2402 | printf("- bogus fixed header length %u should be %lu", |
| 2403 | isis_header->fixed_len, (unsigned long)ISIS_PSNP_HEADER_SIZE); |
| 2404 | return (0); |
| 2405 | } |
| 2406 | |
| 2407 | pdu_len=EXTRACT_16BITS(header_psnp->pdu_len); |
| 2408 | if (packet_len>pdu_len) { |
| 2409 | packet_len=pdu_len; /* do TLV decoding as long as it makes sense */ |
| 2410 | length=pdu_len; |
| 2411 | } |
| 2412 | |
| 2413 | TCHECK(*header_psnp); |
| 2414 | printf("\n\t source-id: %s, PDU length: %u", |
| 2415 | isis_print_id(header_psnp->source_id, NODE_ID_LEN), |
| 2416 | pdu_len); |
| 2417 | |
| 2418 | if (vflag > 1) { |
| 2419 | if(!print_unknown_data(pptr,"\n\t ",ISIS_PSNP_HEADER_SIZE)) |
| 2420 | return(0); |
| 2421 | } |
| 2422 | |
| 2423 | packet_len -= (ISIS_COMMON_HEADER_SIZE+ISIS_PSNP_HEADER_SIZE); |
| 2424 | pptr = p + (ISIS_COMMON_HEADER_SIZE+ISIS_PSNP_HEADER_SIZE); |
| 2425 | break; |
| 2426 | |
| 2427 | default: |
| 2428 | if(!print_unknown_data(pptr,"\n\t ",length)) |
| 2429 | return(0); |
| 2430 | return (0); |
| 2431 | } |
| 2432 | |
| 2433 | /* |
| 2434 | * Now print the TLV's. |
| 2435 | */ |
| 2436 | |
| 2437 | while (packet_len >= 2) { |
| 2438 | if (pptr == snapend) { |
| 2439 | return (1); |
| 2440 | } |
| 2441 | |
| 2442 | if (!TTEST2(*pptr, 2)) { |
| 2443 | printf("\n\t\t packet exceeded snapshot (%ld) bytes", |
| 2444 | (long)(pptr-snapend)); |
| 2445 | return (1); |
| 2446 | } |
| 2447 | tlv_type = *pptr++; |
| 2448 | tlv_len = *pptr++; |
| 2449 | tmp =tlv_len; /* copy temporary len & pointer to packet data */ |
| 2450 | tptr = pptr; |
| 2451 | packet_len -= 2; |
| 2452 | if (tlv_len > packet_len) { |
| 2453 | break; |
| 2454 | } |
| 2455 | |
| 2456 | /* first lets see if we know the TLVs name*/ |
| 2457 | printf("\n\t %s TLV #%u, length: %u", |
| 2458 | tok2str(isis_tlv_values, |
| 2459 | "unknown", |
| 2460 | tlv_type), |
| 2461 | tlv_type, |
| 2462 | tlv_len); |
| 2463 | |
| 2464 | if (tlv_len == 0) /* something is malformed */ |
| 2465 | continue; |
| 2466 | |
| 2467 | /* now check if we have a decoder otherwise do a hexdump at the end*/ |
| 2468 | switch (tlv_type) { |
| 2469 | case ISIS_TLV_AREA_ADDR: |
| 2470 | if (!TTEST2(*tptr, 1)) |
| 2471 | goto trunctlv; |
| 2472 | alen = *tptr++; |
| 2473 | while (tmp && alen < tmp) { |
| 2474 | printf("\n\t Area address (length: %u): %s", |
| 2475 | alen, |
| 2476 | isonsap_string(tptr,alen)); |
| 2477 | tptr += alen; |
| 2478 | tmp -= alen + 1; |
| 2479 | if (tmp==0) /* if this is the last area address do not attemt a boundary check */ |
| 2480 | break; |
| 2481 | if (!TTEST2(*tptr, 1)) |
| 2482 | goto trunctlv; |
| 2483 | alen = *tptr++; |
| 2484 | } |
| 2485 | break; |
| 2486 | case ISIS_TLV_ISNEIGH: |
| 2487 | while (tmp >= ETHER_ADDR_LEN) { |
| 2488 | if (!TTEST2(*tptr, ETHER_ADDR_LEN)) |
| 2489 | goto trunctlv; |
| 2490 | printf("\n\t SNPA: %s",isis_print_id(tptr,ETHER_ADDR_LEN)); |
| 2491 | tmp -= ETHER_ADDR_LEN; |
| 2492 | tptr += ETHER_ADDR_LEN; |
| 2493 | } |
| 2494 | break; |
| 2495 | |
| 2496 | case ISIS_TLV_ISNEIGH_VARLEN: |
| 2497 | if (!TTEST2(*tptr, 1) || tmp < 3) /* min. TLV length */ |
| 2498 | goto trunctlv; |
| 2499 | lan_alen = *tptr++; /* LAN address length */ |
| 2500 | if (lan_alen == 0) { |
| 2501 | printf("\n\t LAN address length 0 bytes (invalid)"); |
| 2502 | break; |
| 2503 | } |
| 2504 | tmp --; |
| 2505 | printf("\n\t LAN address length %u bytes ",lan_alen); |
| 2506 | while (tmp >= lan_alen) { |
| 2507 | if (!TTEST2(*tptr, lan_alen)) |
| 2508 | goto trunctlv; |
| 2509 | printf("\n\t\tIS Neighbor: %s",isis_print_id(tptr,lan_alen)); |
| 2510 | tmp -= lan_alen; |
| 2511 | tptr +=lan_alen; |
| 2512 | } |
| 2513 | break; |
| 2514 | |
| 2515 | case ISIS_TLV_PADDING: |
| 2516 | break; |
| 2517 | |
| 2518 | case ISIS_TLV_MT_IS_REACH: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2519 | mt_len = isis_print_mtid(tptr, "\n\t "); |
| 2520 | if (mt_len == 0) /* did something go wrong ? */ |
| 2521 | goto trunctlv; |
| 2522 | tptr+=mt_len; |
| 2523 | tmp-=mt_len; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2524 | while (tmp >= 2+NODE_ID_LEN+3+1) { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2525 | ext_is_len = isis_print_ext_is_reach(tptr,"\n\t ",tlv_type); |
| 2526 | if (ext_is_len == 0) /* did something go wrong ? */ |
| 2527 | goto trunctlv; |
| 2528 | |
| 2529 | tmp-=ext_is_len; |
| 2530 | tptr+=ext_is_len; |
| 2531 | } |
| 2532 | break; |
| 2533 | |
| 2534 | case ISIS_TLV_IS_ALIAS_ID: |
| 2535 | while (tmp >= NODE_ID_LEN+1) { /* is it worth attempting a decode ? */ |
| 2536 | ext_is_len = isis_print_ext_is_reach(tptr,"\n\t ",tlv_type); |
| 2537 | if (ext_is_len == 0) /* did something go wrong ? */ |
| 2538 | goto trunctlv; |
| 2539 | tmp-=ext_is_len; |
| 2540 | tptr+=ext_is_len; |
| 2541 | } |
| 2542 | break; |
| 2543 | |
| 2544 | case ISIS_TLV_EXT_IS_REACH: |
| 2545 | while (tmp >= NODE_ID_LEN+3+1) { /* is it worth attempting a decode ? */ |
| 2546 | ext_is_len = isis_print_ext_is_reach(tptr,"\n\t ",tlv_type); |
| 2547 | if (ext_is_len == 0) /* did something go wrong ? */ |
| 2548 | goto trunctlv; |
| 2549 | tmp-=ext_is_len; |
| 2550 | tptr+=ext_is_len; |
| 2551 | } |
| 2552 | break; |
| 2553 | case ISIS_TLV_IS_REACH: |
| 2554 | if (!TTEST2(*tptr,1)) /* check if there is one byte left to read out the virtual flag */ |
| 2555 | goto trunctlv; |
| 2556 | printf("\n\t %s", |
| 2557 | tok2str(isis_is_reach_virtual_values, |
| 2558 | "bogus virtual flag 0x%02x", |
| 2559 | *tptr++)); |
| 2560 | tlv_is_reach = (const struct isis_tlv_is_reach *)tptr; |
| 2561 | while (tmp >= sizeof(struct isis_tlv_is_reach)) { |
| 2562 | if (!TTEST(*tlv_is_reach)) |
| 2563 | goto trunctlv; |
| 2564 | printf("\n\t IS Neighbor: %s", |
| 2565 | isis_print_id(tlv_is_reach->neighbor_nodeid, NODE_ID_LEN)); |
| 2566 | isis_print_metric_block(&tlv_is_reach->isis_metric_block); |
| 2567 | tmp -= sizeof(struct isis_tlv_is_reach); |
| 2568 | tlv_is_reach++; |
| 2569 | } |
| 2570 | break; |
| 2571 | |
| 2572 | case ISIS_TLV_ESNEIGH: |
| 2573 | tlv_es_reach = (const struct isis_tlv_es_reach *)tptr; |
| 2574 | while (tmp >= sizeof(struct isis_tlv_es_reach)) { |
| 2575 | if (!TTEST(*tlv_es_reach)) |
| 2576 | goto trunctlv; |
| 2577 | printf("\n\t ES Neighbor: %s", |
| 2578 | isis_print_id(tlv_es_reach->neighbor_sysid,SYSTEM_ID_LEN)); |
| 2579 | isis_print_metric_block(&tlv_es_reach->isis_metric_block); |
| 2580 | tmp -= sizeof(struct isis_tlv_es_reach); |
| 2581 | tlv_es_reach++; |
| 2582 | } |
| 2583 | break; |
| 2584 | |
| 2585 | /* those two TLVs share the same format */ |
| 2586 | case ISIS_TLV_INT_IP_REACH: |
| 2587 | case ISIS_TLV_EXT_IP_REACH: |
| 2588 | if (!isis_print_tlv_ip_reach(pptr, "\n\t ", tlv_len)) |
| 2589 | return (1); |
| 2590 | break; |
| 2591 | |
| 2592 | case ISIS_TLV_EXTD_IP_REACH: |
| 2593 | while (tmp>0) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2594 | ext_ip_len = isis_print_extd_ip_reach(tptr, "\n\t ", AF_INET); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2595 | if (ext_ip_len == 0) /* did something go wrong ? */ |
| 2596 | goto trunctlv; |
| 2597 | tptr+=ext_ip_len; |
| 2598 | tmp-=ext_ip_len; |
| 2599 | } |
| 2600 | break; |
| 2601 | |
| 2602 | case ISIS_TLV_MT_IP_REACH: |
| 2603 | mt_len = isis_print_mtid(tptr, "\n\t "); |
| 2604 | if (mt_len == 0) { /* did something go wrong ? */ |
| 2605 | goto trunctlv; |
| 2606 | } |
| 2607 | tptr+=mt_len; |
| 2608 | tmp-=mt_len; |
| 2609 | |
| 2610 | while (tmp>0) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2611 | ext_ip_len = isis_print_extd_ip_reach(tptr, "\n\t ", AF_INET); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2612 | if (ext_ip_len == 0) /* did something go wrong ? */ |
| 2613 | goto trunctlv; |
| 2614 | tptr+=ext_ip_len; |
| 2615 | tmp-=ext_ip_len; |
| 2616 | } |
| 2617 | break; |
| 2618 | |
| 2619 | #ifdef INET6 |
| 2620 | case ISIS_TLV_IP6_REACH: |
| 2621 | while (tmp>0) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2622 | ext_ip_len = isis_print_extd_ip_reach(tptr, "\n\t ", AF_INET6); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2623 | if (ext_ip_len == 0) /* did something go wrong ? */ |
| 2624 | goto trunctlv; |
| 2625 | tptr+=ext_ip_len; |
| 2626 | tmp-=ext_ip_len; |
| 2627 | } |
| 2628 | break; |
| 2629 | |
| 2630 | case ISIS_TLV_MT_IP6_REACH: |
| 2631 | mt_len = isis_print_mtid(tptr, "\n\t "); |
| 2632 | if (mt_len == 0) { /* did something go wrong ? */ |
| 2633 | goto trunctlv; |
| 2634 | } |
| 2635 | tptr+=mt_len; |
| 2636 | tmp-=mt_len; |
| 2637 | |
| 2638 | while (tmp>0) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2639 | ext_ip_len = isis_print_extd_ip_reach(tptr, "\n\t ", AF_INET6); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2640 | if (ext_ip_len == 0) /* did something go wrong ? */ |
| 2641 | goto trunctlv; |
| 2642 | tptr+=ext_ip_len; |
| 2643 | tmp-=ext_ip_len; |
| 2644 | } |
| 2645 | break; |
| 2646 | |
| 2647 | case ISIS_TLV_IP6ADDR: |
| 2648 | while (tmp>=sizeof(struct in6_addr)) { |
| 2649 | if (!TTEST2(*tptr, sizeof(struct in6_addr))) |
| 2650 | goto trunctlv; |
| 2651 | |
| 2652 | printf("\n\t IPv6 interface address: %s", |
| 2653 | ip6addr_string(tptr)); |
| 2654 | |
| 2655 | tptr += sizeof(struct in6_addr); |
| 2656 | tmp -= sizeof(struct in6_addr); |
| 2657 | } |
| 2658 | break; |
| 2659 | #endif |
| 2660 | case ISIS_TLV_AUTH: |
| 2661 | if (!TTEST2(*tptr, 1)) |
| 2662 | goto trunctlv; |
| 2663 | |
| 2664 | printf("\n\t %s: ", |
| 2665 | tok2str(isis_subtlv_auth_values, |
| 2666 | "unknown Authentication type 0x%02x", |
| 2667 | *tptr)); |
| 2668 | |
| 2669 | switch (*tptr) { |
| 2670 | case ISIS_SUBTLV_AUTH_SIMPLE: |
| 2671 | for(i=1;i<tlv_len;i++) { |
| 2672 | if (!TTEST2(*(tptr+i), 1)) |
| 2673 | goto trunctlv; |
| 2674 | printf("%c",*(tptr+i)); |
| 2675 | } |
| 2676 | break; |
| 2677 | case ISIS_SUBTLV_AUTH_MD5: |
| 2678 | for(i=1;i<tlv_len;i++) { |
| 2679 | if (!TTEST2(*(tptr+i), 1)) |
| 2680 | goto trunctlv; |
| 2681 | printf("%02x",*(tptr+i)); |
| 2682 | } |
| 2683 | if (tlv_len != ISIS_SUBTLV_AUTH_MD5_LEN+1) |
| 2684 | printf(", (malformed subTLV) "); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2685 | |
| 2686 | #ifdef HAVE_LIBCRYPTO |
| 2687 | sigcheck = signature_verify(optr, length, |
| 2688 | (unsigned char *)tptr + 1); |
| 2689 | #else |
| 2690 | sigcheck = CANT_CHECK_SIGNATURE; |
| 2691 | #endif |
| 2692 | printf(" (%s)", tok2str(signature_check_values, "Unknown", sigcheck)); |
| 2693 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2694 | break; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2695 | case ISIS_SUBTLV_AUTH_GENERIC: |
| 2696 | key_id = EXTRACT_16BITS((tptr+1)); |
| 2697 | printf("%u, password: ", key_id); |
| 2698 | for(i=1 + sizeof(u_int16_t);i<tlv_len;i++) { |
| 2699 | if (!TTEST2(*(tptr+i), 1)) |
| 2700 | goto trunctlv; |
| 2701 | printf("%02x",*(tptr+i)); |
| 2702 | } |
| 2703 | break; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2704 | case ISIS_SUBTLV_AUTH_PRIVATE: |
| 2705 | default: |
| 2706 | if(!print_unknown_data(tptr+1,"\n\t\t ",tlv_len-1)) |
| 2707 | return(0); |
| 2708 | break; |
| 2709 | } |
| 2710 | break; |
| 2711 | |
| 2712 | case ISIS_TLV_PTP_ADJ: |
| 2713 | tlv_ptp_adj = (const struct isis_tlv_ptp_adj *)tptr; |
| 2714 | if(tmp>=1) { |
| 2715 | if (!TTEST2(*tptr, 1)) |
| 2716 | goto trunctlv; |
| 2717 | printf("\n\t Adjacency State: %s (%u)", |
| 2718 | tok2str(isis_ptp_adjancey_values, "unknown", *tptr), |
| 2719 | *tptr); |
| 2720 | tmp--; |
| 2721 | } |
| 2722 | if(tmp>sizeof(tlv_ptp_adj->extd_local_circuit_id)) { |
| 2723 | if (!TTEST2(tlv_ptp_adj->extd_local_circuit_id, |
| 2724 | sizeof(tlv_ptp_adj->extd_local_circuit_id))) |
| 2725 | goto trunctlv; |
| 2726 | printf("\n\t Extended Local circuit-ID: 0x%08x", |
| 2727 | EXTRACT_32BITS(tlv_ptp_adj->extd_local_circuit_id)); |
| 2728 | tmp-=sizeof(tlv_ptp_adj->extd_local_circuit_id); |
| 2729 | } |
| 2730 | if(tmp>=SYSTEM_ID_LEN) { |
| 2731 | if (!TTEST2(tlv_ptp_adj->neighbor_sysid, SYSTEM_ID_LEN)) |
| 2732 | goto trunctlv; |
| 2733 | printf("\n\t Neighbor System-ID: %s", |
| 2734 | isis_print_id(tlv_ptp_adj->neighbor_sysid,SYSTEM_ID_LEN)); |
| 2735 | tmp-=SYSTEM_ID_LEN; |
| 2736 | } |
| 2737 | if(tmp>=sizeof(tlv_ptp_adj->neighbor_extd_local_circuit_id)) { |
| 2738 | if (!TTEST2(tlv_ptp_adj->neighbor_extd_local_circuit_id, |
| 2739 | sizeof(tlv_ptp_adj->neighbor_extd_local_circuit_id))) |
| 2740 | goto trunctlv; |
| 2741 | printf("\n\t Neighbor Extended Local circuit-ID: 0x%08x", |
| 2742 | EXTRACT_32BITS(tlv_ptp_adj->neighbor_extd_local_circuit_id)); |
| 2743 | } |
| 2744 | break; |
| 2745 | |
| 2746 | case ISIS_TLV_PROTOCOLS: |
| 2747 | printf("\n\t NLPID(s): "); |
| 2748 | while (tmp>0) { |
| 2749 | if (!TTEST2(*(tptr), 1)) |
| 2750 | goto trunctlv; |
| 2751 | printf("%s (0x%02x)", |
| 2752 | tok2str(nlpid_values, |
| 2753 | "unknown", |
| 2754 | *tptr), |
| 2755 | *tptr); |
| 2756 | if (tmp>1) /* further NPLIDs ? - put comma */ |
| 2757 | printf(", "); |
| 2758 | tptr++; |
| 2759 | tmp--; |
| 2760 | } |
| 2761 | break; |
| 2762 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2763 | case ISIS_TLV_MT_PORT_CAP: |
| 2764 | { |
| 2765 | if (!TTEST2(*(tptr), 2)) |
| 2766 | goto trunctlv; |
| 2767 | |
| 2768 | printf("\n\t RES: %d, MTID(s): %d", |
| 2769 | (EXTRACT_16BITS (tptr) >> 12), |
| 2770 | (EXTRACT_16BITS (tptr) & 0x0fff)); |
| 2771 | |
| 2772 | tmp = tmp-2; |
| 2773 | tptr = tptr+2; |
| 2774 | |
| 2775 | if (tmp) |
| 2776 | isis_print_mt_port_cap_subtlv (tptr, tmp); |
| 2777 | |
| 2778 | break; |
| 2779 | } |
| 2780 | |
| 2781 | case ISIS_TLV_MT_CAPABILITY: |
| 2782 | |
| 2783 | if (!TTEST2(*(tptr), 2)) |
| 2784 | goto trunctlv; |
| 2785 | |
| 2786 | printf("\n\t O: %d, RES: %d, MTID(s): %d", |
| 2787 | (EXTRACT_16BITS(tptr) >> 15) & 0x01, |
| 2788 | (EXTRACT_16BITS(tptr) >> 12) & 0x07, |
| 2789 | EXTRACT_16BITS(tptr) & 0x0fff); |
| 2790 | |
| 2791 | tmp = tmp-2; |
| 2792 | tptr = tptr+2; |
| 2793 | |
| 2794 | if (tmp) |
| 2795 | isis_print_mt_capability_subtlv (tptr, tmp); |
| 2796 | |
| 2797 | break; |
| 2798 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2799 | case ISIS_TLV_TE_ROUTER_ID: |
| 2800 | if (!TTEST2(*pptr, sizeof(struct in_addr))) |
| 2801 | goto trunctlv; |
| 2802 | printf("\n\t Traffic Engineering Router ID: %s", ipaddr_string(pptr)); |
| 2803 | break; |
| 2804 | |
| 2805 | case ISIS_TLV_IPADDR: |
| 2806 | while (tmp>=sizeof(struct in_addr)) { |
| 2807 | if (!TTEST2(*tptr, sizeof(struct in_addr))) |
| 2808 | goto trunctlv; |
| 2809 | printf("\n\t IPv4 interface address: %s", ipaddr_string(tptr)); |
| 2810 | tptr += sizeof(struct in_addr); |
| 2811 | tmp -= sizeof(struct in_addr); |
| 2812 | } |
| 2813 | break; |
| 2814 | |
| 2815 | case ISIS_TLV_HOSTNAME: |
| 2816 | printf("\n\t Hostname: "); |
| 2817 | while (tmp>0) { |
| 2818 | if (!TTEST2(*tptr, 1)) |
| 2819 | goto trunctlv; |
| 2820 | printf("%c",*tptr++); |
| 2821 | tmp--; |
| 2822 | } |
| 2823 | break; |
| 2824 | |
| 2825 | case ISIS_TLV_SHARED_RISK_GROUP: |
| 2826 | if (tmp < NODE_ID_LEN) |
| 2827 | break; |
| 2828 | if (!TTEST2(*tptr, NODE_ID_LEN)) |
| 2829 | goto trunctlv; |
| 2830 | printf("\n\t IS Neighbor: %s", isis_print_id(tptr, NODE_ID_LEN)); |
| 2831 | tptr+=(NODE_ID_LEN); |
| 2832 | tmp-=(NODE_ID_LEN); |
| 2833 | |
| 2834 | if (tmp < 1) |
| 2835 | break; |
| 2836 | if (!TTEST2(*tptr, 1)) |
| 2837 | goto trunctlv; |
| 2838 | printf(", Flags: [%s]", ISIS_MASK_TLV_SHARED_RISK_GROUP(*tptr++) ? "numbered" : "unnumbered"); |
| 2839 | tmp--; |
| 2840 | |
| 2841 | if (tmp < sizeof(struct in_addr)) |
| 2842 | break; |
| 2843 | if (!TTEST2(*tptr,sizeof(struct in_addr))) |
| 2844 | goto trunctlv; |
| 2845 | printf("\n\t IPv4 interface address: %s", ipaddr_string(tptr)); |
| 2846 | tptr+=sizeof(struct in_addr); |
| 2847 | tmp-=sizeof(struct in_addr); |
| 2848 | |
| 2849 | if (tmp < sizeof(struct in_addr)) |
| 2850 | break; |
| 2851 | if (!TTEST2(*tptr,sizeof(struct in_addr))) |
| 2852 | goto trunctlv; |
| 2853 | printf("\n\t IPv4 neighbor address: %s", ipaddr_string(tptr)); |
| 2854 | tptr+=sizeof(struct in_addr); |
| 2855 | tmp-=sizeof(struct in_addr); |
| 2856 | |
| 2857 | while (tmp>=4) { |
| 2858 | if (!TTEST2(*tptr, 4)) |
| 2859 | goto trunctlv; |
| 2860 | printf("\n\t Link-ID: 0x%08x", EXTRACT_32BITS(tptr)); |
| 2861 | tptr+=4; |
| 2862 | tmp-=4; |
| 2863 | } |
| 2864 | break; |
| 2865 | |
| 2866 | case ISIS_TLV_LSP: |
| 2867 | tlv_lsp = (const struct isis_tlv_lsp *)tptr; |
| 2868 | while(tmp>=sizeof(struct isis_tlv_lsp)) { |
| 2869 | if (!TTEST((tlv_lsp->lsp_id)[LSP_ID_LEN-1])) |
| 2870 | goto trunctlv; |
| 2871 | printf("\n\t lsp-id: %s", |
| 2872 | isis_print_id(tlv_lsp->lsp_id, LSP_ID_LEN)); |
| 2873 | if (!TTEST2(tlv_lsp->sequence_number, 4)) |
| 2874 | goto trunctlv; |
| 2875 | printf(", seq: 0x%08x",EXTRACT_32BITS(tlv_lsp->sequence_number)); |
| 2876 | if (!TTEST2(tlv_lsp->remaining_lifetime, 2)) |
| 2877 | goto trunctlv; |
| 2878 | printf(", lifetime: %5ds",EXTRACT_16BITS(tlv_lsp->remaining_lifetime)); |
| 2879 | if (!TTEST2(tlv_lsp->checksum, 2)) |
| 2880 | goto trunctlv; |
| 2881 | printf(", chksum: 0x%04x",EXTRACT_16BITS(tlv_lsp->checksum)); |
| 2882 | tmp-=sizeof(struct isis_tlv_lsp); |
| 2883 | tlv_lsp++; |
| 2884 | } |
| 2885 | break; |
| 2886 | |
| 2887 | case ISIS_TLV_CHECKSUM: |
| 2888 | if (tmp < ISIS_TLV_CHECKSUM_MINLEN) |
| 2889 | break; |
| 2890 | if (!TTEST2(*tptr, ISIS_TLV_CHECKSUM_MINLEN)) |
| 2891 | goto trunctlv; |
| 2892 | printf("\n\t checksum: 0x%04x ", EXTRACT_16BITS(tptr)); |
| 2893 | /* do not attempt to verify the checksum if it is zero |
| 2894 | * most likely a HMAC-MD5 TLV is also present and |
| 2895 | * to avoid conflicts the checksum TLV is zeroed. |
| 2896 | * see rfc3358 for details |
| 2897 | */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 2898 | osi_print_cksum(optr, EXTRACT_16BITS(tptr), tptr-optr, length); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2899 | break; |
| 2900 | |
| 2901 | case ISIS_TLV_MT_SUPPORTED: |
| 2902 | if (tmp < ISIS_TLV_MT_SUPPORTED_MINLEN) |
| 2903 | break; |
| 2904 | while (tmp>1) { |
| 2905 | /* length can only be a multiple of 2, otherwise there is |
| 2906 | something broken -> so decode down until length is 1 */ |
| 2907 | if (tmp!=1) { |
| 2908 | mt_len = isis_print_mtid(tptr, "\n\t "); |
| 2909 | if (mt_len == 0) /* did something go wrong ? */ |
| 2910 | goto trunctlv; |
| 2911 | tptr+=mt_len; |
| 2912 | tmp-=mt_len; |
| 2913 | } else { |
| 2914 | printf("\n\t malformed MT-ID"); |
| 2915 | break; |
| 2916 | } |
| 2917 | } |
| 2918 | break; |
| 2919 | |
| 2920 | case ISIS_TLV_RESTART_SIGNALING: |
| 2921 | /* first attempt to decode the flags */ |
| 2922 | if (tmp < ISIS_TLV_RESTART_SIGNALING_FLAGLEN) |
| 2923 | break; |
| 2924 | if (!TTEST2(*tptr, ISIS_TLV_RESTART_SIGNALING_FLAGLEN)) |
| 2925 | goto trunctlv; |
| 2926 | printf("\n\t Flags [%s]", |
| 2927 | bittok2str(isis_restart_flag_values, "none", *tptr)); |
| 2928 | tptr+=ISIS_TLV_RESTART_SIGNALING_FLAGLEN; |
| 2929 | tmp-=ISIS_TLV_RESTART_SIGNALING_FLAGLEN; |
| 2930 | |
| 2931 | /* is there anything other than the flags field? */ |
| 2932 | if (tmp == 0) |
| 2933 | break; |
| 2934 | |
| 2935 | if (tmp < ISIS_TLV_RESTART_SIGNALING_HOLDTIMELEN) |
| 2936 | break; |
| 2937 | if (!TTEST2(*tptr, ISIS_TLV_RESTART_SIGNALING_HOLDTIMELEN)) |
| 2938 | goto trunctlv; |
| 2939 | |
| 2940 | printf(", Remaining holding time %us", EXTRACT_16BITS(tptr)); |
| 2941 | tptr+=ISIS_TLV_RESTART_SIGNALING_HOLDTIMELEN; |
| 2942 | tmp-=ISIS_TLV_RESTART_SIGNALING_HOLDTIMELEN; |
| 2943 | |
| 2944 | /* is there an additional sysid field present ?*/ |
| 2945 | if (tmp == SYSTEM_ID_LEN) { |
| 2946 | if (!TTEST2(*tptr, SYSTEM_ID_LEN)) |
| 2947 | goto trunctlv; |
| 2948 | printf(", for %s",isis_print_id(tptr,SYSTEM_ID_LEN)); |
| 2949 | } |
| 2950 | break; |
| 2951 | |
| 2952 | case ISIS_TLV_IDRP_INFO: |
| 2953 | if (tmp < ISIS_TLV_IDRP_INFO_MINLEN) |
| 2954 | break; |
| 2955 | if (!TTEST2(*tptr, ISIS_TLV_IDRP_INFO_MINLEN)) |
| 2956 | goto trunctlv; |
| 2957 | printf("\n\t Inter-Domain Information Type: %s", |
| 2958 | tok2str(isis_subtlv_idrp_values, |
| 2959 | "Unknown (0x%02x)", |
| 2960 | *tptr)); |
| 2961 | switch (*tptr++) { |
| 2962 | case ISIS_SUBTLV_IDRP_ASN: |
| 2963 | if (!TTEST2(*tptr, 2)) /* fetch AS number */ |
| 2964 | goto trunctlv; |
| 2965 | printf("AS Number: %u",EXTRACT_16BITS(tptr)); |
| 2966 | break; |
| 2967 | case ISIS_SUBTLV_IDRP_LOCAL: |
| 2968 | case ISIS_SUBTLV_IDRP_RES: |
| 2969 | default: |
| 2970 | if(!print_unknown_data(tptr,"\n\t ",tlv_len-1)) |
| 2971 | return(0); |
| 2972 | break; |
| 2973 | } |
| 2974 | break; |
| 2975 | |
| 2976 | case ISIS_TLV_LSP_BUFFERSIZE: |
| 2977 | if (tmp < ISIS_TLV_LSP_BUFFERSIZE_MINLEN) |
| 2978 | break; |
| 2979 | if (!TTEST2(*tptr, ISIS_TLV_LSP_BUFFERSIZE_MINLEN)) |
| 2980 | goto trunctlv; |
| 2981 | printf("\n\t LSP Buffersize: %u",EXTRACT_16BITS(tptr)); |
| 2982 | break; |
| 2983 | |
| 2984 | case ISIS_TLV_PART_DIS: |
| 2985 | while (tmp >= SYSTEM_ID_LEN) { |
| 2986 | if (!TTEST2(*tptr, SYSTEM_ID_LEN)) |
| 2987 | goto trunctlv; |
| 2988 | printf("\n\t %s",isis_print_id(tptr,SYSTEM_ID_LEN)); |
| 2989 | tptr+=SYSTEM_ID_LEN; |
| 2990 | tmp-=SYSTEM_ID_LEN; |
| 2991 | } |
| 2992 | break; |
| 2993 | |
| 2994 | case ISIS_TLV_PREFIX_NEIGH: |
| 2995 | if (tmp < sizeof(struct isis_metric_block)) |
| 2996 | break; |
| 2997 | if (!TTEST2(*tptr, sizeof(struct isis_metric_block))) |
| 2998 | goto trunctlv; |
| 2999 | printf("\n\t Metric Block"); |
| 3000 | isis_print_metric_block((const struct isis_metric_block *)tptr); |
| 3001 | tptr+=sizeof(struct isis_metric_block); |
| 3002 | tmp-=sizeof(struct isis_metric_block); |
| 3003 | |
| 3004 | while(tmp>0) { |
| 3005 | if (!TTEST2(*tptr, 1)) |
| 3006 | goto trunctlv; |
| 3007 | prefix_len=*tptr++; /* read out prefix length in semioctets*/ |
| 3008 | if (prefix_len < 2) { |
| 3009 | printf("\n\t\tAddress: prefix length %u < 2", prefix_len); |
| 3010 | break; |
| 3011 | } |
| 3012 | tmp--; |
| 3013 | if (tmp < prefix_len/2) |
| 3014 | break; |
| 3015 | if (!TTEST2(*tptr, prefix_len/2)) |
| 3016 | goto trunctlv; |
| 3017 | printf("\n\t\tAddress: %s/%u", |
| 3018 | isonsap_string(tptr,prefix_len/2), |
| 3019 | prefix_len*4); |
| 3020 | tptr+=prefix_len/2; |
| 3021 | tmp-=prefix_len/2; |
| 3022 | } |
| 3023 | break; |
| 3024 | |
| 3025 | case ISIS_TLV_IIH_SEQNR: |
| 3026 | if (tmp < ISIS_TLV_IIH_SEQNR_MINLEN) |
| 3027 | break; |
| 3028 | if (!TTEST2(*tptr, ISIS_TLV_IIH_SEQNR_MINLEN)) /* check if four bytes are on the wire */ |
| 3029 | goto trunctlv; |
| 3030 | printf("\n\t Sequence number: %u", EXTRACT_32BITS(tptr) ); |
| 3031 | break; |
| 3032 | |
| 3033 | case ISIS_TLV_VENDOR_PRIVATE: |
| 3034 | if (tmp < ISIS_TLV_VENDOR_PRIVATE_MINLEN) |
| 3035 | break; |
| 3036 | if (!TTEST2(*tptr, ISIS_TLV_VENDOR_PRIVATE_MINLEN)) /* check if enough byte for a full oui */ |
| 3037 | goto trunctlv; |
| 3038 | vendor_id = EXTRACT_24BITS(tptr); |
| 3039 | printf("\n\t Vendor: %s (%u)", |
| 3040 | tok2str(oui_values,"Unknown",vendor_id), |
| 3041 | vendor_id); |
| 3042 | tptr+=3; |
| 3043 | tmp-=3; |
| 3044 | if (tmp > 0) /* hexdump the rest */ |
| 3045 | if(!print_unknown_data(tptr,"\n\t\t",tmp)) |
| 3046 | return(0); |
| 3047 | break; |
| 3048 | /* |
| 3049 | * FIXME those are the defined TLVs that lack a decoder |
| 3050 | * you are welcome to contribute code ;-) |
| 3051 | */ |
| 3052 | |
| 3053 | case ISIS_TLV_DECNET_PHASE4: |
| 3054 | case ISIS_TLV_LUCENT_PRIVATE: |
| 3055 | case ISIS_TLV_IPAUTH: |
| 3056 | case ISIS_TLV_NORTEL_PRIVATE1: |
| 3057 | case ISIS_TLV_NORTEL_PRIVATE2: |
| 3058 | |
| 3059 | default: |
| 3060 | if (vflag <= 1) { |
| 3061 | if(!print_unknown_data(pptr,"\n\t\t",tlv_len)) |
| 3062 | return(0); |
| 3063 | } |
| 3064 | break; |
| 3065 | } |
| 3066 | /* do we want to see an additionally hexdump ? */ |
| 3067 | if (vflag> 1) { |
| 3068 | if(!print_unknown_data(pptr,"\n\t ",tlv_len)) |
| 3069 | return(0); |
| 3070 | } |
| 3071 | |
| 3072 | pptr += tlv_len; |
| 3073 | packet_len -= tlv_len; |
| 3074 | } |
| 3075 | |
| 3076 | if (packet_len != 0) { |
| 3077 | printf("\n\t %u straggler bytes", packet_len); |
| 3078 | } |
| 3079 | return (1); |
| 3080 | |
| 3081 | trunc: |
| 3082 | fputs("[|isis]", stdout); |
| 3083 | return (1); |
| 3084 | |
| 3085 | trunctlv: |
| 3086 | printf("\n\t\t packet exceeded snapshot"); |
| 3087 | return(1); |
| 3088 | } |
| 3089 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 3090 | static void |
| 3091 | osi_print_cksum (const u_int8_t *pptr, u_int16_t checksum, |
| 3092 | u_int checksum_offset, u_int length) |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 3093 | { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 3094 | u_int16_t calculated_checksum; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 3095 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 3096 | /* do not attempt to verify the checksum if it is zero */ |
| 3097 | if (!checksum) { |
| 3098 | printf("(unverified)"); |
| 3099 | } else { |
| 3100 | calculated_checksum = create_osi_cksum(pptr, checksum_offset, length); |
| 3101 | if (checksum == calculated_checksum) { |
| 3102 | printf(" (correct)"); |
| 3103 | } else { |
| 3104 | printf(" (incorrect should be 0x%04x)", calculated_checksum); |
| 3105 | } |
| 3106 | } |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 3107 | } |
| 3108 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 3109 | /* |
| 3110 | * Local Variables: |
| 3111 | * c-style: whitesmith |
| 3112 | * c-basic-offset: 8 |
| 3113 | * End: |
| 3114 | */ |