The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 1998-2004 Hannes Gredler <hannes@tcpdump.org> |
| 3 | * The TCPDUMP project |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that: (1) source code |
| 7 | * distributions retain the above copyright notice and this paragraph |
| 8 | * in its entirety, and (2) distributions including binary code include |
| 9 | * the above copyright notice and this paragraph in its entirety in |
| 10 | * the documentation or other materials provided with the distribution. |
| 11 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND |
| 12 | * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT |
| 13 | * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| 14 | * FOR A PARTICULAR PURPOSE. |
| 15 | */ |
| 16 | |
| 17 | #ifndef lint |
| 18 | static const char rcsid[] _U_ = |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 19 | "@(#) $Header: /tcpdump/master/tcpdump/print-eigrp.c,v 1.7 2005-05-06 02:53:26 guy Exp $"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 20 | #endif |
| 21 | |
| 22 | #ifdef HAVE_CONFIG_H |
| 23 | #include "config.h" |
| 24 | #endif |
| 25 | |
| 26 | #include <tcpdump-stdinc.h> |
| 27 | |
| 28 | #include <stdio.h> |
| 29 | #include <stdlib.h> |
| 30 | #include <string.h> |
| 31 | |
| 32 | #include "interface.h" |
| 33 | #include "extract.h" |
| 34 | #include "addrtoname.h" |
| 35 | |
| 36 | /* |
| 37 | * packet format documented at |
| 38 | * http://www.rhyshaden.com/eigrp.htm |
| 39 | */ |
| 40 | |
| 41 | struct eigrp_common_header { |
| 42 | u_int8_t version; |
| 43 | u_int8_t opcode; |
| 44 | u_int8_t checksum[2]; |
| 45 | u_int8_t flags[4]; |
| 46 | u_int8_t seq[4]; |
| 47 | u_int8_t ack[4]; |
| 48 | u_int8_t asn[4]; |
| 49 | }; |
| 50 | |
| 51 | #define EIGRP_VERSION 2 |
| 52 | |
| 53 | #define EIGRP_OPCODE_UPDATE 1 |
| 54 | #define EIGRP_OPCODE_QUERY 3 |
| 55 | #define EIGRP_OPCODE_REPLY 4 |
| 56 | #define EIGRP_OPCODE_HELLO 5 |
| 57 | #define EIGRP_OPCODE_IPXSAP 6 |
| 58 | #define EIGRP_OPCODE_PROBE 7 |
| 59 | |
| 60 | static const struct tok eigrp_opcode_values[] = { |
| 61 | { EIGRP_OPCODE_UPDATE, "Update" }, |
| 62 | { EIGRP_OPCODE_QUERY, "Query" }, |
| 63 | { EIGRP_OPCODE_REPLY, "Reply" }, |
| 64 | { EIGRP_OPCODE_HELLO, "Hello" }, |
| 65 | { EIGRP_OPCODE_IPXSAP, "IPX SAP" }, |
| 66 | { EIGRP_OPCODE_PROBE, "Probe" }, |
| 67 | { 0, NULL} |
| 68 | }; |
| 69 | |
| 70 | static const struct tok eigrp_common_header_flag_values[] = { |
| 71 | { 0x01, "Init" }, |
| 72 | { 0x02, "Conditionally Received" }, |
| 73 | { 0, NULL} |
| 74 | }; |
| 75 | |
| 76 | struct eigrp_tlv_header { |
| 77 | u_int8_t type[2]; |
| 78 | u_int8_t length[2]; |
| 79 | }; |
| 80 | |
| 81 | #define EIGRP_TLV_GENERAL_PARM 0x0001 |
| 82 | #define EIGRP_TLV_AUTH 0x0002 |
| 83 | #define EIGRP_TLV_SEQ 0x0003 |
| 84 | #define EIGRP_TLV_SW_VERSION 0x0004 |
| 85 | #define EIGRP_TLV_MCAST_SEQ 0x0005 |
| 86 | #define EIGRP_TLV_IP_INT 0x0102 |
| 87 | #define EIGRP_TLV_IP_EXT 0x0103 |
| 88 | #define EIGRP_TLV_AT_INT 0x0202 |
| 89 | #define EIGRP_TLV_AT_EXT 0x0203 |
| 90 | #define EIGRP_TLV_AT_CABLE_SETUP 0x0204 |
| 91 | #define EIGRP_TLV_IPX_INT 0x0302 |
| 92 | #define EIGRP_TLV_IPX_EXT 0x0303 |
| 93 | |
| 94 | static const struct tok eigrp_tlv_values[] = { |
| 95 | { EIGRP_TLV_GENERAL_PARM, "General Parameters"}, |
| 96 | { EIGRP_TLV_AUTH, "Authentication"}, |
| 97 | { EIGRP_TLV_SEQ, "Sequence"}, |
| 98 | { EIGRP_TLV_SW_VERSION, "Software Version"}, |
| 99 | { EIGRP_TLV_MCAST_SEQ, "Next Multicast Sequence"}, |
| 100 | { EIGRP_TLV_IP_INT, "IP Internal routes"}, |
| 101 | { EIGRP_TLV_IP_EXT, "IP External routes"}, |
| 102 | { EIGRP_TLV_AT_INT, "AppleTalk Internal routes"}, |
| 103 | { EIGRP_TLV_AT_EXT, "AppleTalk External routes"}, |
| 104 | { EIGRP_TLV_AT_CABLE_SETUP, "AppleTalk Cable setup"}, |
| 105 | { EIGRP_TLV_IPX_INT, "IPX Internal routes"}, |
| 106 | { EIGRP_TLV_IPX_EXT, "IPX External routes"}, |
| 107 | { 0, NULL} |
| 108 | }; |
| 109 | |
| 110 | struct eigrp_tlv_general_parm_t { |
| 111 | u_int8_t k1; |
| 112 | u_int8_t k2; |
| 113 | u_int8_t k3; |
| 114 | u_int8_t k4; |
| 115 | u_int8_t k5; |
| 116 | u_int8_t res; |
| 117 | u_int8_t holdtime[2]; |
| 118 | }; |
| 119 | |
| 120 | struct eigrp_tlv_sw_version_t { |
| 121 | u_int8_t ios_major; |
| 122 | u_int8_t ios_minor; |
| 123 | u_int8_t eigrp_major; |
| 124 | u_int8_t eigrp_minor; |
| 125 | }; |
| 126 | |
| 127 | struct eigrp_tlv_ip_int_t { |
| 128 | u_int8_t nexthop[4]; |
| 129 | u_int8_t delay[4]; |
| 130 | u_int8_t bandwidth[4]; |
| 131 | u_int8_t mtu[3]; |
| 132 | u_int8_t hopcount; |
| 133 | u_int8_t reliability; |
| 134 | u_int8_t load; |
| 135 | u_int8_t reserved[2]; |
| 136 | u_int8_t plen; |
| 137 | u_int8_t destination; /* variable length [1-4] bytes encoding */ |
| 138 | }; |
| 139 | |
| 140 | struct eigrp_tlv_ip_ext_t { |
| 141 | u_int8_t nexthop[4]; |
| 142 | u_int8_t origin_router[4]; |
| 143 | u_int8_t origin_as[4]; |
| 144 | u_int8_t tag[4]; |
| 145 | u_int8_t metric[4]; |
| 146 | u_int8_t reserved[2]; |
| 147 | u_int8_t proto_id; |
| 148 | u_int8_t flags; |
| 149 | u_int8_t delay[4]; |
| 150 | u_int8_t bandwidth[4]; |
| 151 | u_int8_t mtu[3]; |
| 152 | u_int8_t hopcount; |
| 153 | u_int8_t reliability; |
| 154 | u_int8_t load; |
| 155 | u_int8_t reserved2[2]; |
| 156 | u_int8_t plen; |
| 157 | u_int8_t destination; /* variable length [1-4] bytes encoding */ |
| 158 | }; |
| 159 | |
| 160 | struct eigrp_tlv_at_cable_setup_t { |
| 161 | u_int8_t cable_start[2]; |
| 162 | u_int8_t cable_end[2]; |
| 163 | u_int8_t router_id[4]; |
| 164 | }; |
| 165 | |
| 166 | struct eigrp_tlv_at_int_t { |
| 167 | u_int8_t nexthop[4]; |
| 168 | u_int8_t delay[4]; |
| 169 | u_int8_t bandwidth[4]; |
| 170 | u_int8_t mtu[3]; |
| 171 | u_int8_t hopcount; |
| 172 | u_int8_t reliability; |
| 173 | u_int8_t load; |
| 174 | u_int8_t reserved[2]; |
| 175 | u_int8_t cable_start[2]; |
| 176 | u_int8_t cable_end[2]; |
| 177 | }; |
| 178 | |
| 179 | struct eigrp_tlv_at_ext_t { |
| 180 | u_int8_t nexthop[4]; |
| 181 | u_int8_t origin_router[4]; |
| 182 | u_int8_t origin_as[4]; |
| 183 | u_int8_t tag[4]; |
| 184 | u_int8_t proto_id; |
| 185 | u_int8_t flags; |
| 186 | u_int8_t metric[2]; |
| 187 | u_int8_t delay[4]; |
| 188 | u_int8_t bandwidth[4]; |
| 189 | u_int8_t mtu[3]; |
| 190 | u_int8_t hopcount; |
| 191 | u_int8_t reliability; |
| 192 | u_int8_t load; |
| 193 | u_int8_t reserved2[2]; |
| 194 | u_int8_t cable_start[2]; |
| 195 | u_int8_t cable_end[2]; |
| 196 | }; |
| 197 | |
| 198 | static const struct tok eigrp_ext_proto_id_values[] = { |
| 199 | { 0x01, "IGRP" }, |
| 200 | { 0x02, "EIGRP" }, |
| 201 | { 0x03, "Static" }, |
| 202 | { 0x04, "RIP" }, |
| 203 | { 0x05, "Hello" }, |
| 204 | { 0x06, "OSPF" }, |
| 205 | { 0x07, "IS-IS" }, |
| 206 | { 0x08, "EGP" }, |
| 207 | { 0x09, "BGP" }, |
| 208 | { 0x0a, "IDRP" }, |
| 209 | { 0x0b, "Connected" }, |
| 210 | { 0, NULL} |
| 211 | }; |
| 212 | |
| 213 | void |
| 214 | eigrp_print(register const u_char *pptr, register u_int len) { |
| 215 | |
| 216 | const struct eigrp_common_header *eigrp_com_header; |
| 217 | const struct eigrp_tlv_header *eigrp_tlv_header; |
| 218 | const u_char *tptr,*tlv_tptr; |
| 219 | u_int tlen,eigrp_tlv_len,eigrp_tlv_type,tlv_tlen, byte_length, bit_length; |
| 220 | u_int8_t prefix[4]; |
| 221 | |
| 222 | union { |
| 223 | const struct eigrp_tlv_general_parm_t *eigrp_tlv_general_parm; |
| 224 | const struct eigrp_tlv_sw_version_t *eigrp_tlv_sw_version; |
| 225 | const struct eigrp_tlv_ip_int_t *eigrp_tlv_ip_int; |
| 226 | const struct eigrp_tlv_ip_ext_t *eigrp_tlv_ip_ext; |
| 227 | const struct eigrp_tlv_at_cable_setup_t *eigrp_tlv_at_cable_setup; |
| 228 | const struct eigrp_tlv_at_int_t *eigrp_tlv_at_int; |
| 229 | const struct eigrp_tlv_at_ext_t *eigrp_tlv_at_ext; |
| 230 | } tlv_ptr; |
| 231 | |
| 232 | tptr=pptr; |
| 233 | eigrp_com_header = (const struct eigrp_common_header *)pptr; |
| 234 | TCHECK(*eigrp_com_header); |
| 235 | |
| 236 | /* |
| 237 | * Sanity checking of the header. |
| 238 | */ |
| 239 | if (eigrp_com_header->version != EIGRP_VERSION) { |
| 240 | printf("EIGRP version %u packet not supported",eigrp_com_header->version); |
| 241 | return; |
| 242 | } |
| 243 | |
| 244 | /* in non-verbose mode just lets print the basic Message Type*/ |
| 245 | if (vflag < 1) { |
| 246 | printf("EIGRP %s, length: %u", |
| 247 | tok2str(eigrp_opcode_values, "unknown (%u)",eigrp_com_header->opcode), |
| 248 | len); |
| 249 | return; |
| 250 | } |
| 251 | |
| 252 | /* ok they seem to want to know everything - lets fully decode it */ |
| 253 | |
| 254 | tlen=len-sizeof(struct eigrp_common_header); |
| 255 | |
| 256 | /* FIXME print other header info */ |
| 257 | printf("\n\tEIGRP v%u, opcode: %s (%u), chksum: 0x%04x, Flags: [%s]\n\tseq: 0x%08x, ack: 0x%08x, AS: %u, length: %u", |
| 258 | eigrp_com_header->version, |
| 259 | tok2str(eigrp_opcode_values, "unknown, type: %u",eigrp_com_header->opcode), |
| 260 | eigrp_com_header->opcode, |
| 261 | EXTRACT_16BITS(&eigrp_com_header->checksum), |
| 262 | tok2str(eigrp_common_header_flag_values, |
| 263 | "none", |
| 264 | EXTRACT_32BITS(&eigrp_com_header->flags)), |
| 265 | EXTRACT_32BITS(&eigrp_com_header->seq), |
| 266 | EXTRACT_32BITS(&eigrp_com_header->ack), |
| 267 | EXTRACT_32BITS(&eigrp_com_header->asn), |
| 268 | tlen); |
| 269 | |
| 270 | tptr+=sizeof(const struct eigrp_common_header); |
| 271 | |
| 272 | while(tlen>0) { |
| 273 | /* did we capture enough for fully decoding the object header ? */ |
| 274 | TCHECK2(*tptr, sizeof(struct eigrp_tlv_header)); |
| 275 | |
| 276 | eigrp_tlv_header = (const struct eigrp_tlv_header *)tptr; |
| 277 | eigrp_tlv_len=EXTRACT_16BITS(&eigrp_tlv_header->length); |
| 278 | eigrp_tlv_type=EXTRACT_16BITS(&eigrp_tlv_header->type); |
| 279 | |
| 280 | |
| 281 | if (eigrp_tlv_len < sizeof(struct eigrp_tlv_header) || |
| 282 | eigrp_tlv_len > tlen) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 283 | print_unknown_data(tptr+sizeof(struct eigrp_tlv_header),"\n\t ",tlen); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 284 | return; |
| 285 | } |
| 286 | |
| 287 | printf("\n\t %s TLV (0x%04x), length: %u", |
| 288 | tok2str(eigrp_tlv_values, |
| 289 | "Unknown", |
| 290 | eigrp_tlv_type), |
| 291 | eigrp_tlv_type, |
| 292 | eigrp_tlv_len); |
| 293 | |
| 294 | tlv_tptr=tptr+sizeof(struct eigrp_tlv_header); |
| 295 | tlv_tlen=eigrp_tlv_len-sizeof(struct eigrp_tlv_header); |
| 296 | |
| 297 | /* did we capture enough for fully decoding the object ? */ |
| 298 | TCHECK2(*tptr, eigrp_tlv_len); |
| 299 | |
| 300 | switch(eigrp_tlv_type) { |
| 301 | |
| 302 | case EIGRP_TLV_GENERAL_PARM: |
| 303 | tlv_ptr.eigrp_tlv_general_parm = (const struct eigrp_tlv_general_parm_t *)tlv_tptr; |
| 304 | |
| 305 | printf("\n\t holdtime: %us, k1 %u, k2 %u, k3 %u, k4 %u, k5 %u", |
| 306 | EXTRACT_16BITS(tlv_ptr.eigrp_tlv_general_parm->holdtime), |
| 307 | tlv_ptr.eigrp_tlv_general_parm->k1, |
| 308 | tlv_ptr.eigrp_tlv_general_parm->k2, |
| 309 | tlv_ptr.eigrp_tlv_general_parm->k3, |
| 310 | tlv_ptr.eigrp_tlv_general_parm->k4, |
| 311 | tlv_ptr.eigrp_tlv_general_parm->k5); |
| 312 | break; |
| 313 | |
| 314 | case EIGRP_TLV_SW_VERSION: |
| 315 | tlv_ptr.eigrp_tlv_sw_version = (const struct eigrp_tlv_sw_version_t *)tlv_tptr; |
| 316 | |
| 317 | printf("\n\t IOS version: %u.%u, EIGRP version %u.%u", |
| 318 | tlv_ptr.eigrp_tlv_sw_version->ios_major, |
| 319 | tlv_ptr.eigrp_tlv_sw_version->ios_minor, |
| 320 | tlv_ptr.eigrp_tlv_sw_version->eigrp_major, |
| 321 | tlv_ptr.eigrp_tlv_sw_version->eigrp_minor); |
| 322 | break; |
| 323 | |
| 324 | case EIGRP_TLV_IP_INT: |
| 325 | tlv_ptr.eigrp_tlv_ip_int = (const struct eigrp_tlv_ip_int_t *)tlv_tptr; |
| 326 | |
| 327 | bit_length = tlv_ptr.eigrp_tlv_ip_int->plen; |
| 328 | if (bit_length > 32) { |
| 329 | printf("\n\t illegal prefix length %u",bit_length); |
| 330 | break; |
| 331 | } |
| 332 | byte_length = (bit_length + 7) / 8; /* variable length encoding */ |
| 333 | memset(prefix, 0, 4); |
| 334 | memcpy(prefix,&tlv_ptr.eigrp_tlv_ip_int->destination,byte_length); |
| 335 | |
| 336 | printf("\n\t IPv4 prefix: %15s/%u, nexthop: ", |
| 337 | ipaddr_string(prefix), |
| 338 | bit_length); |
| 339 | if (EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_ip_int->nexthop) == 0) |
| 340 | printf("self"); |
| 341 | else |
| 342 | printf("%s",ipaddr_string(&tlv_ptr.eigrp_tlv_ip_int->nexthop)); |
| 343 | |
| 344 | printf("\n\t delay %u ms, bandwidth %u Kbps, mtu %u, hop %u, reliability %u, load %u", |
| 345 | (EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_ip_int->delay)/100), |
| 346 | EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_ip_int->bandwidth), |
| 347 | EXTRACT_24BITS(&tlv_ptr.eigrp_tlv_ip_int->mtu), |
| 348 | tlv_ptr.eigrp_tlv_ip_int->hopcount, |
| 349 | tlv_ptr.eigrp_tlv_ip_int->reliability, |
| 350 | tlv_ptr.eigrp_tlv_ip_int->load); |
| 351 | break; |
| 352 | |
| 353 | case EIGRP_TLV_IP_EXT: |
| 354 | tlv_ptr.eigrp_tlv_ip_ext = (const struct eigrp_tlv_ip_ext_t *)tlv_tptr; |
| 355 | |
| 356 | bit_length = tlv_ptr.eigrp_tlv_ip_ext->plen; |
| 357 | if (bit_length > 32) { |
| 358 | printf("\n\t illegal prefix length %u",bit_length); |
| 359 | break; |
| 360 | } |
| 361 | byte_length = (bit_length + 7) / 8; /* variable length encoding */ |
| 362 | memset(prefix, 0, 4); |
| 363 | memcpy(prefix,&tlv_ptr.eigrp_tlv_ip_ext->destination,byte_length); |
| 364 | |
| 365 | printf("\n\t IPv4 prefix: %15s/%u, nexthop: ", |
| 366 | ipaddr_string(prefix), |
| 367 | bit_length); |
| 368 | if (EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_ip_ext->nexthop) == 0) |
| 369 | printf("self"); |
| 370 | else |
| 371 | printf("%s",ipaddr_string(&tlv_ptr.eigrp_tlv_ip_ext->nexthop)); |
| 372 | |
| 373 | printf("\n\t origin-router %s, origin-as %u, origin-proto %s, flags [0x%02x], tag 0x%08x, metric %u", |
| 374 | ipaddr_string(tlv_ptr.eigrp_tlv_ip_ext->origin_router), |
| 375 | EXTRACT_32BITS(tlv_ptr.eigrp_tlv_ip_ext->origin_as), |
| 376 | tok2str(eigrp_ext_proto_id_values,"unknown",tlv_ptr.eigrp_tlv_ip_ext->proto_id), |
| 377 | tlv_ptr.eigrp_tlv_ip_ext->flags, |
| 378 | EXTRACT_32BITS(tlv_ptr.eigrp_tlv_ip_ext->tag), |
| 379 | EXTRACT_32BITS(tlv_ptr.eigrp_tlv_ip_ext->metric)); |
| 380 | |
| 381 | printf("\n\t delay %u ms, bandwidth %u Kbps, mtu %u, hop %u, reliability %u, load %u", |
| 382 | (EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_ip_ext->delay)/100), |
| 383 | EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_ip_ext->bandwidth), |
| 384 | EXTRACT_24BITS(&tlv_ptr.eigrp_tlv_ip_ext->mtu), |
| 385 | tlv_ptr.eigrp_tlv_ip_ext->hopcount, |
| 386 | tlv_ptr.eigrp_tlv_ip_ext->reliability, |
| 387 | tlv_ptr.eigrp_tlv_ip_ext->load); |
| 388 | break; |
| 389 | |
| 390 | case EIGRP_TLV_AT_CABLE_SETUP: |
| 391 | tlv_ptr.eigrp_tlv_at_cable_setup = (const struct eigrp_tlv_at_cable_setup_t *)tlv_tptr; |
| 392 | |
| 393 | printf("\n\t Cable-range: %u-%u, Router-ID %u", |
| 394 | EXTRACT_16BITS(&tlv_ptr.eigrp_tlv_at_cable_setup->cable_start), |
| 395 | EXTRACT_16BITS(&tlv_ptr.eigrp_tlv_at_cable_setup->cable_end), |
| 396 | EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_at_cable_setup->router_id)); |
| 397 | break; |
| 398 | |
| 399 | case EIGRP_TLV_AT_INT: |
| 400 | tlv_ptr.eigrp_tlv_at_int = (const struct eigrp_tlv_at_int_t *)tlv_tptr; |
| 401 | |
| 402 | printf("\n\t Cable-Range: %u-%u, nexthop: ", |
| 403 | EXTRACT_16BITS(&tlv_ptr.eigrp_tlv_at_int->cable_start), |
| 404 | EXTRACT_16BITS(&tlv_ptr.eigrp_tlv_at_int->cable_end)); |
| 405 | |
| 406 | if (EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_at_int->nexthop) == 0) |
| 407 | printf("self"); |
| 408 | else |
| 409 | printf("%u.%u", |
| 410 | EXTRACT_16BITS(&tlv_ptr.eigrp_tlv_at_int->nexthop), |
| 411 | EXTRACT_16BITS(&tlv_ptr.eigrp_tlv_at_int->nexthop[2])); |
| 412 | |
| 413 | printf("\n\t delay %u ms, bandwidth %u Kbps, mtu %u, hop %u, reliability %u, load %u", |
| 414 | (EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_at_int->delay)/100), |
| 415 | EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_at_int->bandwidth), |
| 416 | EXTRACT_24BITS(&tlv_ptr.eigrp_tlv_at_int->mtu), |
| 417 | tlv_ptr.eigrp_tlv_at_int->hopcount, |
| 418 | tlv_ptr.eigrp_tlv_at_int->reliability, |
| 419 | tlv_ptr.eigrp_tlv_at_int->load); |
| 420 | break; |
| 421 | |
| 422 | case EIGRP_TLV_AT_EXT: |
| 423 | tlv_ptr.eigrp_tlv_at_ext = (const struct eigrp_tlv_at_ext_t *)tlv_tptr; |
| 424 | |
| 425 | printf("\n\t Cable-Range: %u-%u, nexthop: ", |
| 426 | EXTRACT_16BITS(&tlv_ptr.eigrp_tlv_at_ext->cable_start), |
| 427 | EXTRACT_16BITS(&tlv_ptr.eigrp_tlv_at_ext->cable_end)); |
| 428 | |
| 429 | if (EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_at_ext->nexthop) == 0) |
| 430 | printf("self"); |
| 431 | else |
| 432 | printf("%u.%u", |
| 433 | EXTRACT_16BITS(&tlv_ptr.eigrp_tlv_at_ext->nexthop), |
| 434 | EXTRACT_16BITS(&tlv_ptr.eigrp_tlv_at_ext->nexthop[2])); |
| 435 | |
| 436 | printf("\n\t origin-router %u, origin-as %u, origin-proto %s, flags [0x%02x], tag 0x%08x, metric %u", |
| 437 | EXTRACT_32BITS(tlv_ptr.eigrp_tlv_at_ext->origin_router), |
| 438 | EXTRACT_32BITS(tlv_ptr.eigrp_tlv_at_ext->origin_as), |
| 439 | tok2str(eigrp_ext_proto_id_values,"unknown",tlv_ptr.eigrp_tlv_at_ext->proto_id), |
| 440 | tlv_ptr.eigrp_tlv_at_ext->flags, |
| 441 | EXTRACT_32BITS(tlv_ptr.eigrp_tlv_at_ext->tag), |
| 442 | EXTRACT_16BITS(tlv_ptr.eigrp_tlv_at_ext->metric)); |
| 443 | |
| 444 | printf("\n\t delay %u ms, bandwidth %u Kbps, mtu %u, hop %u, reliability %u, load %u", |
| 445 | (EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_at_ext->delay)/100), |
| 446 | EXTRACT_32BITS(&tlv_ptr.eigrp_tlv_at_ext->bandwidth), |
| 447 | EXTRACT_24BITS(&tlv_ptr.eigrp_tlv_at_ext->mtu), |
| 448 | tlv_ptr.eigrp_tlv_at_ext->hopcount, |
| 449 | tlv_ptr.eigrp_tlv_at_ext->reliability, |
| 450 | tlv_ptr.eigrp_tlv_at_ext->load); |
| 451 | break; |
| 452 | |
| 453 | /* |
| 454 | * FIXME those are the defined TLVs that lack a decoder |
| 455 | * you are welcome to contribute code ;-) |
| 456 | */ |
| 457 | |
| 458 | case EIGRP_TLV_AUTH: |
| 459 | case EIGRP_TLV_SEQ: |
| 460 | case EIGRP_TLV_MCAST_SEQ: |
| 461 | case EIGRP_TLV_IPX_INT: |
| 462 | case EIGRP_TLV_IPX_EXT: |
| 463 | |
| 464 | default: |
| 465 | if (vflag <= 1) |
| 466 | print_unknown_data(tlv_tptr,"\n\t ",tlv_tlen); |
| 467 | break; |
| 468 | } |
| 469 | /* do we want to see an additionally hexdump ? */ |
| 470 | if (vflag > 1) |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 471 | print_unknown_data(tptr+sizeof(struct eigrp_tlv_header),"\n\t ", |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 472 | eigrp_tlv_len-sizeof(struct eigrp_tlv_header)); |
| 473 | |
| 474 | tptr+=eigrp_tlv_len; |
| 475 | tlen-=eigrp_tlv_len; |
| 476 | } |
| 477 | return; |
| 478 | trunc: |
| 479 | printf("\n\t\t packet exceeded snapshot"); |
| 480 | } |