The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 1992, 1993, 1994, 1995, 1996, 1997 |
| 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 | * OSPF support contributed by Jeffrey Honig (jch@mitchell.cit.cornell.edu) |
| 22 | */ |
| 23 | |
| 24 | #ifndef lint |
| 25 | static const char rcsid[] _U_ = |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 26 | "@(#) $Header: /tcpdump/master/tcpdump/print-ospf.c,v 1.66 2007-10-08 07:53:21 hannes Exp $ (LBL)"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 27 | #endif |
| 28 | |
| 29 | #ifdef HAVE_CONFIG_H |
| 30 | #include "config.h" |
| 31 | #endif |
| 32 | |
| 33 | #include <tcpdump-stdinc.h> |
| 34 | |
| 35 | #include <stdio.h> |
| 36 | |
| 37 | #include "interface.h" |
| 38 | #include "addrtoname.h" |
| 39 | #include "extract.h" |
| 40 | #include "gmpls.h" |
| 41 | |
| 42 | #include "ospf.h" |
| 43 | |
| 44 | #include "ip.h" |
| 45 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 46 | static const struct tok ospf_option_values[] = { |
| 47 | { OSPF_OPTION_T, "MultiTopology" }, /* draft-ietf-ospf-mt-09 */ |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 48 | { OSPF_OPTION_E, "External" }, |
| 49 | { OSPF_OPTION_MC, "Multicast" }, |
| 50 | { OSPF_OPTION_NP, "NSSA" }, |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 51 | { OSPF_OPTION_L, "LLS" }, |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 52 | { OSPF_OPTION_DC, "Demand Circuit" }, |
| 53 | { OSPF_OPTION_O, "Opaque" }, |
| 54 | { OSPF_OPTION_DN, "Up/Down" }, |
| 55 | { 0, NULL } |
| 56 | }; |
| 57 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 58 | static const struct tok ospf_authtype_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 59 | { OSPF_AUTH_NONE, "none" }, |
| 60 | { OSPF_AUTH_SIMPLE, "simple" }, |
| 61 | { OSPF_AUTH_MD5, "MD5" }, |
| 62 | { 0, NULL } |
| 63 | }; |
| 64 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 65 | static const struct tok ospf_rla_flag_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 66 | { RLA_FLAG_B, "ABR" }, |
| 67 | { RLA_FLAG_E, "ASBR" }, |
| 68 | { RLA_FLAG_W1, "Virtual" }, |
| 69 | { RLA_FLAG_W2, "W2" }, |
| 70 | { 0, NULL } |
| 71 | }; |
| 72 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 73 | static const struct tok type2str[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 74 | { OSPF_TYPE_UMD, "UMD" }, |
| 75 | { OSPF_TYPE_HELLO, "Hello" }, |
| 76 | { OSPF_TYPE_DD, "Database Description" }, |
| 77 | { OSPF_TYPE_LS_REQ, "LS-Request" }, |
| 78 | { OSPF_TYPE_LS_UPDATE, "LS-Update" }, |
| 79 | { OSPF_TYPE_LS_ACK, "LS-Ack" }, |
| 80 | { 0, NULL } |
| 81 | }; |
| 82 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 83 | static const struct tok lsa_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 84 | { LS_TYPE_ROUTER, "Router" }, |
| 85 | { LS_TYPE_NETWORK, "Network" }, |
| 86 | { LS_TYPE_SUM_IP, "Summary" }, |
| 87 | { LS_TYPE_SUM_ABR, "ASBR Summary" }, |
| 88 | { LS_TYPE_ASE, "External" }, |
| 89 | { LS_TYPE_GROUP, "Multicast Group" }, |
| 90 | { LS_TYPE_NSSA, "NSSA" }, |
| 91 | { LS_TYPE_OPAQUE_LL, "Link Local Opaque" }, |
| 92 | { LS_TYPE_OPAQUE_AL, "Area Local Opaque" }, |
| 93 | { LS_TYPE_OPAQUE_DW, "Domain Wide Opaque" }, |
| 94 | { 0, NULL } |
| 95 | }; |
| 96 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 97 | static const struct tok ospf_dd_flag_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 98 | { OSPF_DB_INIT, "Init" }, |
| 99 | { OSPF_DB_MORE, "More" }, |
| 100 | { OSPF_DB_MASTER, "Master" }, |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 101 | { OSPF_DB_RESYNC, "OOBResync" }, |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 102 | { 0, NULL } |
| 103 | }; |
| 104 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 105 | static const struct tok lsa_opaque_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 106 | { LS_OPAQUE_TYPE_TE, "Traffic Engineering" }, |
| 107 | { LS_OPAQUE_TYPE_GRACE, "Graceful restart" }, |
| 108 | { LS_OPAQUE_TYPE_RI, "Router Information" }, |
| 109 | { 0, NULL } |
| 110 | }; |
| 111 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 112 | static const struct tok lsa_opaque_te_tlv_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 113 | { LS_OPAQUE_TE_TLV_ROUTER, "Router Address" }, |
| 114 | { LS_OPAQUE_TE_TLV_LINK, "Link" }, |
| 115 | { 0, NULL } |
| 116 | }; |
| 117 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 118 | static const struct tok lsa_opaque_te_link_tlv_subtlv_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 119 | { LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE, "Link Type" }, |
| 120 | { LS_OPAQUE_TE_LINK_SUBTLV_LINK_ID, "Link ID" }, |
| 121 | { LS_OPAQUE_TE_LINK_SUBTLV_LOCAL_IP, "Local Interface IP address" }, |
| 122 | { LS_OPAQUE_TE_LINK_SUBTLV_REMOTE_IP, "Remote Interface IP address" }, |
| 123 | { LS_OPAQUE_TE_LINK_SUBTLV_TE_METRIC, "Traffic Engineering Metric" }, |
| 124 | { LS_OPAQUE_TE_LINK_SUBTLV_MAX_BW, "Maximum Bandwidth" }, |
| 125 | { LS_OPAQUE_TE_LINK_SUBTLV_MAX_RES_BW, "Maximum Reservable Bandwidth" }, |
| 126 | { LS_OPAQUE_TE_LINK_SUBTLV_UNRES_BW, "Unreserved Bandwidth" }, |
| 127 | { LS_OPAQUE_TE_LINK_SUBTLV_ADMIN_GROUP, "Administrative Group" }, |
| 128 | { LS_OPAQUE_TE_LINK_SUBTLV_LINK_LOCAL_REMOTE_ID, "Link Local/Remote Identifier" }, |
| 129 | { LS_OPAQUE_TE_LINK_SUBTLV_LINK_PROTECTION_TYPE, "Link Protection Type" }, |
| 130 | { LS_OPAQUE_TE_LINK_SUBTLV_INTF_SW_CAP_DESCR, "Interface Switching Capability" }, |
| 131 | { LS_OPAQUE_TE_LINK_SUBTLV_SHARED_RISK_GROUP, "Shared Risk Link Group" }, |
| 132 | { LS_OPAQUE_TE_LINK_SUBTLV_BW_CONSTRAINTS, "Bandwidth Constraints" }, |
| 133 | { 0, NULL } |
| 134 | }; |
| 135 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 136 | static const struct tok lsa_opaque_grace_tlv_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 137 | { LS_OPAQUE_GRACE_TLV_PERIOD, "Grace Period" }, |
| 138 | { LS_OPAQUE_GRACE_TLV_REASON, "Graceful restart Reason" }, |
| 139 | { LS_OPAQUE_GRACE_TLV_INT_ADDRESS, "IPv4 interface address" }, |
| 140 | { 0, NULL } |
| 141 | }; |
| 142 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 143 | static const struct tok lsa_opaque_grace_tlv_reason_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 144 | { LS_OPAQUE_GRACE_TLV_REASON_UNKNOWN, "Unknown" }, |
| 145 | { LS_OPAQUE_GRACE_TLV_REASON_SW_RESTART, "Software Restart" }, |
| 146 | { LS_OPAQUE_GRACE_TLV_REASON_SW_UPGRADE, "Software Reload/Upgrade" }, |
| 147 | { LS_OPAQUE_GRACE_TLV_REASON_CP_SWITCH, "Control Processor Switch" }, |
| 148 | { 0, NULL } |
| 149 | }; |
| 150 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 151 | static const struct tok lsa_opaque_te_tlv_link_type_sub_tlv_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 152 | { LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE_PTP, "Point-to-point" }, |
| 153 | { LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE_MA, "Multi-Access" }, |
| 154 | { 0, NULL } |
| 155 | }; |
| 156 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 157 | static const struct tok lsa_opaque_ri_tlv_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 158 | { LS_OPAQUE_RI_TLV_CAP, "Router Capabilities" }, |
| 159 | { 0, NULL } |
| 160 | }; |
| 161 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 162 | static const struct tok lsa_opaque_ri_tlv_cap_values[] = { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 163 | { 1, "Reserved" }, |
| 164 | { 2, "Reserved" }, |
| 165 | { 4, "Reserved" }, |
| 166 | { 8, "Reserved" }, |
| 167 | { 16, "graceful restart capable" }, |
| 168 | { 32, "graceful restart helper" }, |
| 169 | { 64, "Stub router support" }, |
| 170 | { 128, "Traffic engineering" }, |
| 171 | { 256, "p2p over LAN" }, |
| 172 | { 512, "path computation server" }, |
| 173 | { 0, NULL } |
| 174 | }; |
| 175 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 176 | static const struct tok ospf_lls_tlv_values[] = { |
| 177 | { OSPF_LLS_EO, "Extended Options" }, |
| 178 | { OSPF_LLS_MD5, "MD5 Authentication" }, |
| 179 | { 0, NULL } |
| 180 | }; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 181 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 182 | static const struct tok ospf_lls_eo_options[] = { |
| 183 | { OSPF_LLS_EO_LR, "LSDB resync" }, |
| 184 | { OSPF_LLS_EO_RS, "Restart" }, |
| 185 | { 0, NULL } |
| 186 | }; |
| 187 | |
| 188 | static char tstr[] = " [|ospf2]"; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 189 | |
| 190 | static int ospf_print_lshdr(const struct lsa_hdr *); |
| 191 | static const u_char *ospf_print_lsa(const struct lsa *); |
| 192 | static int ospf_decode_v2(const struct ospfhdr *, const u_char *); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 193 | static int ospf_decode_lls(const struct ospfhdr *, register u_int); |
| 194 | |
| 195 | int |
| 196 | ospf_print_grace_lsa (const u_int8_t *tptr, u_int ls_length) { |
| 197 | |
| 198 | u_int tlv_type, tlv_length; |
| 199 | |
| 200 | |
| 201 | while (ls_length > 0) { |
| 202 | TCHECK2(*tptr, 4); |
| 203 | if (ls_length < 4) { |
| 204 | printf("\n\t Remaining LS length %u < 4", ls_length); |
| 205 | return -1; |
| 206 | } |
| 207 | tlv_type = EXTRACT_16BITS(tptr); |
| 208 | tlv_length = EXTRACT_16BITS(tptr+2); |
| 209 | tptr+=4; |
| 210 | ls_length-=4; |
| 211 | |
| 212 | printf("\n\t %s TLV (%u), length %u, value: ", |
| 213 | tok2str(lsa_opaque_grace_tlv_values,"unknown",tlv_type), |
| 214 | tlv_type, |
| 215 | tlv_length); |
| 216 | |
| 217 | if (tlv_length > ls_length) { |
| 218 | printf("\n\t Bogus length %u > %u", tlv_length, |
| 219 | ls_length); |
| 220 | return -1; |
| 221 | } |
| 222 | |
| 223 | /* Infinite loop protection. */ |
| 224 | if (tlv_type == 0 || tlv_length ==0) { |
| 225 | return -1; |
| 226 | } |
| 227 | |
| 228 | TCHECK2(*tptr, tlv_length); |
| 229 | switch(tlv_type) { |
| 230 | |
| 231 | case LS_OPAQUE_GRACE_TLV_PERIOD: |
| 232 | if (tlv_length != 4) { |
| 233 | printf("\n\t Bogus length %u != 4", tlv_length); |
| 234 | return -1; |
| 235 | } |
| 236 | printf("%us",EXTRACT_32BITS(tptr)); |
| 237 | break; |
| 238 | |
| 239 | case LS_OPAQUE_GRACE_TLV_REASON: |
| 240 | if (tlv_length != 1) { |
| 241 | printf("\n\t Bogus length %u != 1", tlv_length); |
| 242 | return -1; |
| 243 | } |
| 244 | printf("%s (%u)", |
| 245 | tok2str(lsa_opaque_grace_tlv_reason_values, "Unknown", *tptr), |
| 246 | *tptr); |
| 247 | break; |
| 248 | |
| 249 | case LS_OPAQUE_GRACE_TLV_INT_ADDRESS: |
| 250 | if (tlv_length != 4) { |
| 251 | printf("\n\t Bogus length %u != 4", tlv_length); |
| 252 | return -1; |
| 253 | } |
| 254 | printf("%s", ipaddr_string(tptr)); |
| 255 | break; |
| 256 | |
| 257 | default: |
| 258 | if (vflag <= 1) { |
| 259 | if(!print_unknown_data(tptr,"\n\t ",tlv_length)) |
| 260 | return -1; |
| 261 | } |
| 262 | break; |
| 263 | |
| 264 | } |
| 265 | /* in OSPF everything has to be 32-bit aligned, including TLVs */ |
| 266 | if (tlv_length%4 != 0) |
| 267 | tlv_length+=4-(tlv_length%4); |
| 268 | ls_length-=tlv_length; |
| 269 | tptr+=tlv_length; |
| 270 | } |
| 271 | |
| 272 | return 0; |
| 273 | trunc: |
| 274 | return -1; |
| 275 | } |
| 276 | |
| 277 | int |
| 278 | ospf_print_te_lsa (const u_int8_t *tptr, u_int ls_length) { |
| 279 | |
| 280 | u_int tlv_type, tlv_length, subtlv_type, subtlv_length; |
| 281 | u_int priority_level, te_class, count_srlg; |
| 282 | union { /* int to float conversion buffer for several subTLVs */ |
| 283 | float f; |
| 284 | u_int32_t i; |
| 285 | } bw; |
| 286 | |
| 287 | while (ls_length != 0) { |
| 288 | TCHECK2(*tptr, 4); |
| 289 | if (ls_length < 4) { |
| 290 | printf("\n\t Remaining LS length %u < 4", ls_length); |
| 291 | return -1; |
| 292 | } |
| 293 | tlv_type = EXTRACT_16BITS(tptr); |
| 294 | tlv_length = EXTRACT_16BITS(tptr+2); |
| 295 | tptr+=4; |
| 296 | ls_length-=4; |
| 297 | |
| 298 | printf("\n\t %s TLV (%u), length: %u", |
| 299 | tok2str(lsa_opaque_te_tlv_values,"unknown",tlv_type), |
| 300 | tlv_type, |
| 301 | tlv_length); |
| 302 | |
| 303 | if (tlv_length > ls_length) { |
| 304 | printf("\n\t Bogus length %u > %u", tlv_length, |
| 305 | ls_length); |
| 306 | return -1; |
| 307 | } |
| 308 | |
| 309 | /* Infinite loop protection. */ |
| 310 | if (tlv_type == 0 || tlv_length ==0) { |
| 311 | return -1; |
| 312 | } |
| 313 | |
| 314 | switch(tlv_type) { |
| 315 | case LS_OPAQUE_TE_TLV_LINK: |
| 316 | while (tlv_length >= sizeof(subtlv_type) + sizeof(subtlv_length)) { |
| 317 | if (tlv_length < 4) { |
| 318 | printf("\n\t Remaining TLV length %u < 4", |
| 319 | tlv_length); |
| 320 | return -1; |
| 321 | } |
| 322 | TCHECK2(*tptr, 4); |
| 323 | subtlv_type = EXTRACT_16BITS(tptr); |
| 324 | subtlv_length = EXTRACT_16BITS(tptr+2); |
| 325 | tptr+=4; |
| 326 | tlv_length-=4; |
| 327 | |
| 328 | printf("\n\t %s subTLV (%u), length: %u", |
| 329 | tok2str(lsa_opaque_te_link_tlv_subtlv_values,"unknown",subtlv_type), |
| 330 | subtlv_type, |
| 331 | subtlv_length); |
| 332 | |
| 333 | TCHECK2(*tptr, subtlv_length); |
| 334 | switch(subtlv_type) { |
| 335 | case LS_OPAQUE_TE_LINK_SUBTLV_ADMIN_GROUP: |
| 336 | printf(", 0x%08x", EXTRACT_32BITS(tptr)); |
| 337 | break; |
| 338 | case LS_OPAQUE_TE_LINK_SUBTLV_LINK_ID: |
| 339 | case LS_OPAQUE_TE_LINK_SUBTLV_LINK_LOCAL_REMOTE_ID: |
| 340 | printf(", %s (0x%08x)", |
| 341 | ipaddr_string(tptr), |
| 342 | EXTRACT_32BITS(tptr)); |
| 343 | if (subtlv_length == 8) /* rfc4203 */ |
| 344 | printf(", %s (0x%08x)", |
| 345 | ipaddr_string(tptr+4), |
| 346 | EXTRACT_32BITS(tptr+4)); |
| 347 | break; |
| 348 | case LS_OPAQUE_TE_LINK_SUBTLV_LOCAL_IP: |
| 349 | case LS_OPAQUE_TE_LINK_SUBTLV_REMOTE_IP: |
| 350 | printf(", %s", ipaddr_string(tptr)); |
| 351 | break; |
| 352 | case LS_OPAQUE_TE_LINK_SUBTLV_MAX_BW: |
| 353 | case LS_OPAQUE_TE_LINK_SUBTLV_MAX_RES_BW: |
| 354 | bw.i = EXTRACT_32BITS(tptr); |
| 355 | printf(", %.3f Mbps", bw.f*8/1000000 ); |
| 356 | break; |
| 357 | case LS_OPAQUE_TE_LINK_SUBTLV_UNRES_BW: |
| 358 | for (te_class = 0; te_class < 8; te_class++) { |
| 359 | bw.i = EXTRACT_32BITS(tptr+te_class*4); |
| 360 | printf("\n\t\tTE-Class %u: %.3f Mbps", |
| 361 | te_class, |
| 362 | bw.f*8/1000000 ); |
| 363 | } |
| 364 | break; |
| 365 | case LS_OPAQUE_TE_LINK_SUBTLV_BW_CONSTRAINTS: |
| 366 | printf("\n\t\tBandwidth Constraints Model ID: %s (%u)", |
| 367 | tok2str(diffserv_te_bc_values, "unknown", *tptr), |
| 368 | *tptr); |
| 369 | /* decode BCs until the subTLV ends */ |
| 370 | for (te_class = 0; te_class < (subtlv_length-4)/4; te_class++) { |
| 371 | bw.i = EXTRACT_32BITS(tptr+4+te_class*4); |
| 372 | printf("\n\t\t Bandwidth constraint CT%u: %.3f Mbps", |
| 373 | te_class, |
| 374 | bw.f*8/1000000 ); |
| 375 | } |
| 376 | break; |
| 377 | case LS_OPAQUE_TE_LINK_SUBTLV_TE_METRIC: |
| 378 | printf(", Metric %u", EXTRACT_32BITS(tptr)); |
| 379 | break; |
| 380 | case LS_OPAQUE_TE_LINK_SUBTLV_LINK_PROTECTION_TYPE: |
| 381 | printf(", %s, Priority %u", |
| 382 | bittok2str(gmpls_link_prot_values, "none", *tptr), |
| 383 | *(tptr+1)); |
| 384 | break; |
| 385 | case LS_OPAQUE_TE_LINK_SUBTLV_INTF_SW_CAP_DESCR: |
| 386 | printf("\n\t\tInterface Switching Capability: %s", |
| 387 | tok2str(gmpls_switch_cap_values, "Unknown", *(tptr))); |
| 388 | printf("\n\t\tLSP Encoding: %s\n\t\tMax LSP Bandwidth:", |
| 389 | tok2str(gmpls_encoding_values, "Unknown", *(tptr+1))); |
| 390 | for (priority_level = 0; priority_level < 8; priority_level++) { |
| 391 | bw.i = EXTRACT_32BITS(tptr+4+(priority_level*4)); |
| 392 | printf("\n\t\t priority level %d: %.3f Mbps", |
| 393 | priority_level, |
| 394 | bw.f*8/1000000 ); |
| 395 | } |
| 396 | break; |
| 397 | case LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE: |
| 398 | printf(", %s (%u)", |
| 399 | tok2str(lsa_opaque_te_tlv_link_type_sub_tlv_values,"unknown",*tptr), |
| 400 | *tptr); |
| 401 | break; |
| 402 | |
| 403 | case LS_OPAQUE_TE_LINK_SUBTLV_SHARED_RISK_GROUP: |
| 404 | count_srlg = subtlv_length / 4; |
| 405 | if (count_srlg != 0) |
| 406 | printf("\n\t\t Shared risk group: "); |
| 407 | while (count_srlg > 0) { |
| 408 | bw.i = EXTRACT_32BITS(tptr); |
| 409 | printf("%d",bw.i); |
| 410 | tptr+=4; |
| 411 | count_srlg--; |
| 412 | if (count_srlg > 0) |
| 413 | printf(", "); |
| 414 | } |
| 415 | break; |
| 416 | |
| 417 | default: |
| 418 | if (vflag <= 1) { |
| 419 | if(!print_unknown_data(tptr,"\n\t\t",subtlv_length)) |
| 420 | return -1; |
| 421 | } |
| 422 | break; |
| 423 | } |
| 424 | /* in OSPF everything has to be 32-bit aligned, including subTLVs */ |
| 425 | if (subtlv_length%4 != 0) |
| 426 | subtlv_length+=4-(subtlv_length%4); |
| 427 | |
| 428 | tlv_length-=subtlv_length; |
| 429 | tptr+=subtlv_length; |
| 430 | |
| 431 | } |
| 432 | break; |
| 433 | |
| 434 | case LS_OPAQUE_TE_TLV_ROUTER: |
| 435 | if (tlv_length < 4) { |
| 436 | printf("\n\t TLV length %u < 4", tlv_length); |
| 437 | return -1; |
| 438 | } |
| 439 | TCHECK2(*tptr, 4); |
| 440 | printf(", %s", ipaddr_string(tptr)); |
| 441 | break; |
| 442 | |
| 443 | default: |
| 444 | if (vflag <= 1) { |
| 445 | if(!print_unknown_data(tptr,"\n\t ",tlv_length)) |
| 446 | return -1; |
| 447 | } |
| 448 | break; |
| 449 | } |
| 450 | /* in OSPF everything has to be 32-bit aligned, including TLVs */ |
| 451 | if (tlv_length%4 != 0) |
| 452 | tlv_length+=4-(tlv_length%4); |
| 453 | ls_length-=tlv_length; |
| 454 | tptr+=tlv_length; |
| 455 | } |
| 456 | return 0; |
| 457 | trunc: |
| 458 | return -1; |
| 459 | } |
| 460 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 461 | |
| 462 | static int |
| 463 | ospf_print_lshdr(register const struct lsa_hdr *lshp) |
| 464 | { |
| 465 | u_int ls_length; |
| 466 | |
| 467 | TCHECK(lshp->ls_length); |
| 468 | ls_length = EXTRACT_16BITS(&lshp->ls_length); |
| 469 | if (ls_length < sizeof(struct lsa_hdr)) { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 470 | printf("\n\t Bogus length %u < header (%lu)", ls_length, |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 471 | (unsigned long)sizeof(struct lsa_hdr)); |
| 472 | return(-1); |
| 473 | } |
| 474 | |
| 475 | TCHECK(lshp->ls_seq); /* XXX - ls_length check checked this */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 476 | printf("\n\t Advertising Router %s, seq 0x%08x, age %us, length %u", |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 477 | ipaddr_string(&lshp->ls_router), |
| 478 | EXTRACT_32BITS(&lshp->ls_seq), |
| 479 | EXTRACT_16BITS(&lshp->ls_age), |
| 480 | ls_length-(u_int)sizeof(struct lsa_hdr)); |
| 481 | |
| 482 | TCHECK(lshp->ls_type); /* XXX - ls_length check checked this */ |
| 483 | switch (lshp->ls_type) { |
| 484 | /* the LSA header for opaque LSAs was slightly changed */ |
| 485 | case LS_TYPE_OPAQUE_LL: |
| 486 | case LS_TYPE_OPAQUE_AL: |
| 487 | case LS_TYPE_OPAQUE_DW: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 488 | printf("\n\t %s LSA (%d), Opaque-Type %s LSA (%u), Opaque-ID %u", |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 489 | tok2str(lsa_values,"unknown",lshp->ls_type), |
| 490 | lshp->ls_type, |
| 491 | |
| 492 | tok2str(lsa_opaque_values, |
| 493 | "unknown", |
| 494 | *(&lshp->un_lsa_id.opaque_field.opaque_type)), |
| 495 | *(&lshp->un_lsa_id.opaque_field.opaque_type), |
| 496 | EXTRACT_24BITS(&lshp->un_lsa_id.opaque_field.opaque_id) |
| 497 | |
| 498 | ); |
| 499 | break; |
| 500 | |
| 501 | /* all other LSA types use regular style LSA headers */ |
| 502 | default: |
| 503 | printf("\n\t %s LSA (%d), LSA-ID: %s", |
| 504 | tok2str(lsa_values,"unknown",lshp->ls_type), |
| 505 | lshp->ls_type, |
| 506 | ipaddr_string(&lshp->un_lsa_id.lsa_id)); |
| 507 | break; |
| 508 | } |
| 509 | |
| 510 | TCHECK(lshp->ls_options); /* XXX - ls_length check checked this */ |
| 511 | printf("\n\t Options: [%s]", bittok2str(ospf_option_values,"none",lshp->ls_options)); |
| 512 | |
| 513 | return (ls_length); |
| 514 | trunc: |
| 515 | return (-1); |
| 516 | } |
| 517 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 518 | /* draft-ietf-ospf-mt-09 */ |
| 519 | static const struct tok ospf_topology_values[] = { |
| 520 | { 0, "default " }, |
| 521 | { 1, "multicast " }, |
| 522 | { 2, "management " }, |
| 523 | { 0, NULL } |
| 524 | }; |
| 525 | |
| 526 | /* |
| 527 | * Print all the per-topology metrics. |
| 528 | */ |
| 529 | static void |
| 530 | ospf_print_tos_metrics(const union un_tos *tos) |
| 531 | { |
| 532 | int metric_count; |
| 533 | int toscount; |
| 534 | |
| 535 | toscount = tos->link.link_tos_count+1; |
| 536 | metric_count = 0; |
| 537 | |
| 538 | /* |
| 539 | * All but the first metric contain a valid topology id. |
| 540 | */ |
| 541 | while (toscount) { |
| 542 | printf("\n\t\ttopology %s(%u), metric %u", |
| 543 | tok2str(ospf_topology_values, "", |
| 544 | metric_count ? tos->metrics.tos_type : 0), |
| 545 | metric_count ? tos->metrics.tos_type : 0, |
| 546 | EXTRACT_16BITS(&tos->metrics.tos_metric)); |
| 547 | metric_count++; |
| 548 | tos++; |
| 549 | toscount--; |
| 550 | } |
| 551 | } |
| 552 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 553 | /* |
| 554 | * Print a single link state advertisement. If truncated or if LSA length |
| 555 | * field is less than the length of the LSA header, return NULl, else |
| 556 | * return pointer to data past end of LSA. |
| 557 | */ |
| 558 | static const u_int8_t * |
| 559 | ospf_print_lsa(register const struct lsa *lsap) |
| 560 | { |
| 561 | register const u_int8_t *ls_end; |
| 562 | register const struct rlalink *rlp; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 563 | register const struct in_addr *ap; |
| 564 | register const struct aslametric *almp; |
| 565 | register const struct mcla *mcp; |
| 566 | register const u_int32_t *lp; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 567 | register int j, tlv_type, tlv_length, topology; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 568 | register int ls_length; |
| 569 | const u_int8_t *tptr; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 570 | |
| 571 | tptr = (u_int8_t *)lsap->lsa_un.un_unknown; /* squelch compiler warnings */ |
| 572 | ls_length = ospf_print_lshdr(&lsap->ls_hdr); |
| 573 | if (ls_length == -1) |
| 574 | return(NULL); |
| 575 | ls_end = (u_int8_t *)lsap + ls_length; |
| 576 | ls_length -= sizeof(struct lsa_hdr); |
| 577 | |
| 578 | switch (lsap->ls_hdr.ls_type) { |
| 579 | |
| 580 | case LS_TYPE_ROUTER: |
| 581 | TCHECK(lsap->lsa_un.un_rla.rla_flags); |
| 582 | printf("\n\t Router LSA Options: [%s]", bittok2str(ospf_rla_flag_values,"none",lsap->lsa_un.un_rla.rla_flags)); |
| 583 | |
| 584 | TCHECK(lsap->lsa_un.un_rla.rla_count); |
| 585 | j = EXTRACT_16BITS(&lsap->lsa_un.un_rla.rla_count); |
| 586 | TCHECK(lsap->lsa_un.un_rla.rla_link); |
| 587 | rlp = lsap->lsa_un.un_rla.rla_link; |
| 588 | while (j--) { |
| 589 | TCHECK(*rlp); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 590 | switch (rlp->un_tos.link.link_type) { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 591 | |
| 592 | case RLA_TYPE_VIRTUAL: |
| 593 | printf("\n\t Virtual Link: Neighbor Router-ID: %s, Interface Address: %s", |
| 594 | ipaddr_string(&rlp->link_id), |
| 595 | ipaddr_string(&rlp->link_data)); |
| 596 | break; |
| 597 | |
| 598 | case RLA_TYPE_ROUTER: |
| 599 | printf("\n\t Neighbor Router-ID: %s, Interface Address: %s", |
| 600 | ipaddr_string(&rlp->link_id), |
| 601 | ipaddr_string(&rlp->link_data)); |
| 602 | break; |
| 603 | |
| 604 | case RLA_TYPE_TRANSIT: |
| 605 | printf("\n\t Neighbor Network-ID: %s, Interface Address: %s", |
| 606 | ipaddr_string(&rlp->link_id), |
| 607 | ipaddr_string(&rlp->link_data)); |
| 608 | break; |
| 609 | |
| 610 | case RLA_TYPE_STUB: |
| 611 | printf("\n\t Stub Network: %s, Mask: %s", |
| 612 | ipaddr_string(&rlp->link_id), |
| 613 | ipaddr_string(&rlp->link_data)); |
| 614 | break; |
| 615 | |
| 616 | default: |
| 617 | printf("\n\t Unknown Router Link Type (%u)", |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 618 | rlp->un_tos.link.link_type); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 619 | return (ls_end); |
| 620 | } |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 621 | |
| 622 | ospf_print_tos_metrics(&rlp->un_tos); |
| 623 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 624 | rlp = (struct rlalink *)((u_char *)(rlp + 1) + |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 625 | ((rlp->un_tos.link.link_tos_count) * sizeof(union un_tos))); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 626 | } |
| 627 | break; |
| 628 | |
| 629 | case LS_TYPE_NETWORK: |
| 630 | TCHECK(lsap->lsa_un.un_nla.nla_mask); |
| 631 | printf("\n\t Mask %s\n\t Connected Routers:", |
| 632 | ipaddr_string(&lsap->lsa_un.un_nla.nla_mask)); |
| 633 | ap = lsap->lsa_un.un_nla.nla_router; |
| 634 | while ((u_char *)ap < ls_end) { |
| 635 | TCHECK(*ap); |
| 636 | printf("\n\t %s", ipaddr_string(ap)); |
| 637 | ++ap; |
| 638 | } |
| 639 | break; |
| 640 | |
| 641 | case LS_TYPE_SUM_IP: |
| 642 | TCHECK(lsap->lsa_un.un_nla.nla_mask); |
| 643 | printf("\n\t Mask %s", |
| 644 | ipaddr_string(&lsap->lsa_un.un_sla.sla_mask)); |
| 645 | TCHECK(lsap->lsa_un.un_sla.sla_tosmetric); |
| 646 | lp = lsap->lsa_un.un_sla.sla_tosmetric; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 647 | while ((u_char *)lp < ls_end) { |
| 648 | register u_int32_t ul; |
| 649 | |
| 650 | TCHECK(*lp); |
| 651 | ul = EXTRACT_32BITS(lp); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 652 | topology = (ul & SLA_MASK_TOS) >> SLA_SHIFT_TOS; |
| 653 | printf("\n\t\ttopology %s(%u) metric %d", |
| 654 | tok2str(ospf_topology_values, "", topology), |
| 655 | topology, |
| 656 | ul & SLA_MASK_METRIC); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 657 | ++lp; |
| 658 | } |
| 659 | break; |
| 660 | |
| 661 | case LS_TYPE_SUM_ABR: |
| 662 | TCHECK(lsap->lsa_un.un_sla.sla_tosmetric); |
| 663 | lp = lsap->lsa_un.un_sla.sla_tosmetric; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 664 | while ((u_char *)lp < ls_end) { |
| 665 | register u_int32_t ul; |
| 666 | |
| 667 | TCHECK(*lp); |
| 668 | ul = EXTRACT_32BITS(lp); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 669 | topology = (ul & SLA_MASK_TOS) >> SLA_SHIFT_TOS; |
| 670 | printf("\n\t\ttopology %s(%u) metric %d", |
| 671 | tok2str(ospf_topology_values, "", topology), |
| 672 | topology, |
| 673 | ul & SLA_MASK_METRIC); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 674 | ++lp; |
| 675 | } |
| 676 | break; |
| 677 | |
| 678 | case LS_TYPE_ASE: |
| 679 | case LS_TYPE_NSSA: /* fall through - those LSAs share the same format */ |
| 680 | TCHECK(lsap->lsa_un.un_nla.nla_mask); |
| 681 | printf("\n\t Mask %s", |
| 682 | ipaddr_string(&lsap->lsa_un.un_asla.asla_mask)); |
| 683 | |
| 684 | TCHECK(lsap->lsa_un.un_sla.sla_tosmetric); |
| 685 | almp = lsap->lsa_un.un_asla.asla_metric; |
| 686 | while ((u_char *)almp < ls_end) { |
| 687 | register u_int32_t ul; |
| 688 | |
| 689 | TCHECK(almp->asla_tosmetric); |
| 690 | ul = EXTRACT_32BITS(&almp->asla_tosmetric); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 691 | topology = ((ul & ASLA_MASK_TOS) >> ASLA_SHIFT_TOS); |
| 692 | printf("\n\t\ttopology %s(%u), type %d, metric", |
| 693 | tok2str(ospf_topology_values, "", topology), |
| 694 | topology, |
| 695 | (ul & ASLA_FLAG_EXTERNAL) ? 2 : 1); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 696 | if ((ul & ASLA_MASK_METRIC)==0xffffff) |
| 697 | printf(" infinite"); |
| 698 | else |
| 699 | printf(" %d", (ul & ASLA_MASK_METRIC)); |
| 700 | |
| 701 | TCHECK(almp->asla_forward); |
| 702 | if (almp->asla_forward.s_addr) { |
| 703 | printf(", forward %s", |
| 704 | ipaddr_string(&almp->asla_forward)); |
| 705 | } |
| 706 | TCHECK(almp->asla_tag); |
| 707 | if (almp->asla_tag.s_addr) { |
| 708 | printf(", tag %s", |
| 709 | ipaddr_string(&almp->asla_tag)); |
| 710 | } |
| 711 | ++almp; |
| 712 | } |
| 713 | break; |
| 714 | |
| 715 | case LS_TYPE_GROUP: |
| 716 | /* Multicast extensions as of 23 July 1991 */ |
| 717 | mcp = lsap->lsa_un.un_mcla; |
| 718 | while ((u_char *)mcp < ls_end) { |
| 719 | TCHECK(mcp->mcla_vid); |
| 720 | switch (EXTRACT_32BITS(&mcp->mcla_vtype)) { |
| 721 | |
| 722 | case MCLA_VERTEX_ROUTER: |
| 723 | printf("\n\t Router Router-ID %s", |
| 724 | ipaddr_string(&mcp->mcla_vid)); |
| 725 | break; |
| 726 | |
| 727 | case MCLA_VERTEX_NETWORK: |
| 728 | printf("\n\t Network Designated Router %s", |
| 729 | ipaddr_string(&mcp->mcla_vid)); |
| 730 | break; |
| 731 | |
| 732 | default: |
| 733 | printf("\n\t unknown VertexType (%u)", |
| 734 | EXTRACT_32BITS(&mcp->mcla_vtype)); |
| 735 | break; |
| 736 | } |
| 737 | ++mcp; |
| 738 | } |
| 739 | break; |
| 740 | |
| 741 | case LS_TYPE_OPAQUE_LL: /* fall through */ |
| 742 | case LS_TYPE_OPAQUE_AL: |
| 743 | case LS_TYPE_OPAQUE_DW: |
| 744 | |
| 745 | switch (*(&lsap->ls_hdr.un_lsa_id.opaque_field.opaque_type)) { |
| 746 | case LS_OPAQUE_TYPE_RI: |
| 747 | tptr = (u_int8_t *)(&lsap->lsa_un.un_ri_tlv.type); |
| 748 | |
| 749 | while (ls_length != 0) { |
| 750 | TCHECK2(*tptr, 4); |
| 751 | if (ls_length < 4) { |
| 752 | printf("\n\t Remaining LS length %u < 4", ls_length); |
| 753 | return(ls_end); |
| 754 | } |
| 755 | tlv_type = EXTRACT_16BITS(tptr); |
| 756 | tlv_length = EXTRACT_16BITS(tptr+2); |
| 757 | tptr+=4; |
| 758 | ls_length-=4; |
| 759 | |
| 760 | printf("\n\t %s TLV (%u), length: %u, value: ", |
| 761 | tok2str(lsa_opaque_ri_tlv_values,"unknown",tlv_type), |
| 762 | tlv_type, |
| 763 | tlv_length); |
| 764 | |
| 765 | if (tlv_length > ls_length) { |
| 766 | printf("\n\t Bogus length %u > %u", tlv_length, |
| 767 | ls_length); |
| 768 | return(ls_end); |
| 769 | } |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 770 | TCHECK2(*tptr, tlv_length); |
| 771 | switch(tlv_type) { |
| 772 | |
| 773 | case LS_OPAQUE_RI_TLV_CAP: |
| 774 | if (tlv_length != 4) { |
| 775 | printf("\n\t Bogus length %u != 4", tlv_length); |
| 776 | return(ls_end); |
| 777 | } |
| 778 | printf("Capabilities: %s", |
| 779 | bittok2str(lsa_opaque_ri_tlv_cap_values, "Unknown", EXTRACT_32BITS(tptr))); |
| 780 | break; |
| 781 | default: |
| 782 | if (vflag <= 1) { |
| 783 | if(!print_unknown_data(tptr,"\n\t ",tlv_length)) |
| 784 | return(ls_end); |
| 785 | } |
| 786 | break; |
| 787 | |
| 788 | } |
| 789 | tptr+=tlv_length; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 790 | ls_length-=tlv_length; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 791 | } |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 792 | break; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 793 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 794 | case LS_OPAQUE_TYPE_GRACE: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 795 | if (ospf_print_grace_lsa((u_int8_t *)(&lsap->lsa_un.un_grace_tlv.type), |
| 796 | ls_length) == -1) { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 797 | return(ls_end); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 798 | } |
| 799 | break; |
| 800 | |
| 801 | case LS_OPAQUE_TYPE_TE: |
| 802 | if (ospf_print_te_lsa((u_int8_t *)(&lsap->lsa_un.un_te_lsa_tlv.type), |
| 803 | ls_length) == -1) { |
| 804 | return(ls_end); |
| 805 | } |
| 806 | break; |
| 807 | |
| 808 | default: |
| 809 | if (vflag <= 1) { |
| 810 | if(!print_unknown_data((u_int8_t *)lsap->lsa_un.un_unknown, |
| 811 | "\n\t ", ls_length)) |
| 812 | return(ls_end); |
| 813 | } |
| 814 | break; |
| 815 | } |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 816 | } |
| 817 | |
| 818 | /* do we want to see an additionally hexdump ? */ |
| 819 | if (vflag> 1) |
| 820 | if(!print_unknown_data((u_int8_t *)lsap->lsa_un.un_unknown, |
| 821 | "\n\t ", ls_length)) { |
| 822 | return(ls_end); |
| 823 | } |
| 824 | |
| 825 | return (ls_end); |
| 826 | trunc: |
| 827 | return (NULL); |
| 828 | } |
| 829 | |
| 830 | static int |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 831 | ospf_decode_lls(register const struct ospfhdr *op, |
| 832 | register u_int length) |
| 833 | { |
| 834 | register const u_char *dptr; |
| 835 | register const u_char *dataend; |
| 836 | register u_int length2; |
| 837 | register u_int16_t lls_type, lls_len; |
| 838 | register u_int32_t lls_flags; |
| 839 | |
| 840 | switch (op->ospf_type) { |
| 841 | |
| 842 | case OSPF_TYPE_HELLO: |
| 843 | if (!(op->ospf_hello.hello_options & OSPF_OPTION_L)) |
| 844 | return (0); |
| 845 | break; |
| 846 | |
| 847 | case OSPF_TYPE_DD: |
| 848 | if (!(op->ospf_db.db_options & OSPF_OPTION_L)) |
| 849 | return (0); |
| 850 | break; |
| 851 | |
| 852 | default: |
| 853 | return (0); |
| 854 | } |
| 855 | |
| 856 | /* dig deeper if LLS data is available; see RFC4813 */ |
| 857 | length2 = EXTRACT_16BITS(&op->ospf_len); |
| 858 | dptr = (u_char *)op + length2; |
| 859 | dataend = (u_char *)op + length; |
| 860 | |
| 861 | if (EXTRACT_16BITS(&op->ospf_authtype) == OSPF_AUTH_MD5) { |
| 862 | dptr = dptr + op->ospf_authdata[3]; |
| 863 | length2 += op->ospf_authdata[3]; |
| 864 | } |
| 865 | if (length2 >= length) { |
| 866 | printf("\n\t[LLS truncated]"); |
| 867 | return (1); |
| 868 | } |
| 869 | TCHECK2(*dptr, 2); |
| 870 | printf("\n\t LLS: checksum: 0x%04x", (u_int)EXTRACT_16BITS(dptr)); |
| 871 | |
| 872 | dptr += 2; |
| 873 | TCHECK2(*dptr, 2); |
| 874 | length2 = EXTRACT_16BITS(dptr); |
| 875 | printf(", length: %u", length2); |
| 876 | |
| 877 | dptr += 2; |
| 878 | TCHECK(*dptr); |
| 879 | while (dptr < dataend) { |
| 880 | TCHECK2(*dptr, 2); |
| 881 | lls_type = EXTRACT_16BITS(dptr); |
| 882 | printf("\n\t %s (%u)", |
| 883 | tok2str(ospf_lls_tlv_values,"Unknown TLV",lls_type), |
| 884 | lls_type); |
| 885 | dptr += 2; |
| 886 | TCHECK2(*dptr, 2); |
| 887 | lls_len = EXTRACT_16BITS(dptr); |
| 888 | printf(", length: %u", lls_len); |
| 889 | dptr += 2; |
| 890 | switch (lls_type) { |
| 891 | |
| 892 | case OSPF_LLS_EO: |
| 893 | if (lls_len != 4) { |
| 894 | printf(" [should be 4]"); |
| 895 | lls_len = 4; |
| 896 | } |
| 897 | TCHECK2(*dptr, 4); |
| 898 | lls_flags = EXTRACT_32BITS(dptr); |
| 899 | printf("\n\t Options: 0x%08x [%s]", lls_flags, |
| 900 | bittok2str(ospf_lls_eo_options,"?",lls_flags)); |
| 901 | |
| 902 | break; |
| 903 | |
| 904 | case OSPF_LLS_MD5: |
| 905 | if (lls_len != 20) { |
| 906 | printf(" [should be 20]"); |
| 907 | lls_len = 20; |
| 908 | } |
| 909 | TCHECK2(*dptr, 4); |
| 910 | printf("\n\t Sequence number: 0x%08x", EXTRACT_32BITS(dptr)); |
| 911 | break; |
| 912 | } |
| 913 | |
| 914 | dptr += lls_len; |
| 915 | } |
| 916 | |
| 917 | return (0); |
| 918 | trunc: |
| 919 | return (1); |
| 920 | } |
| 921 | |
| 922 | static int |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 923 | ospf_decode_v2(register const struct ospfhdr *op, |
| 924 | register const u_char *dataend) |
| 925 | { |
| 926 | register const struct in_addr *ap; |
| 927 | register const struct lsr *lsrp; |
| 928 | register const struct lsa_hdr *lshp; |
| 929 | register const struct lsa *lsap; |
| 930 | register u_int32_t lsa_count,lsa_count_max; |
| 931 | |
| 932 | switch (op->ospf_type) { |
| 933 | |
| 934 | case OSPF_TYPE_UMD: |
| 935 | /* |
| 936 | * Rob Coltun's special monitoring packets; |
| 937 | * do nothing |
| 938 | */ |
| 939 | break; |
| 940 | |
| 941 | case OSPF_TYPE_HELLO: |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 942 | printf("\n\tOptions [%s]", |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 943 | bittok2str(ospf_option_values,"none",op->ospf_hello.hello_options)); |
| 944 | |
| 945 | TCHECK(op->ospf_hello.hello_deadint); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 946 | printf("\n\t Hello Timer %us, Dead Timer %us, Mask %s, Priority %u", |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 947 | EXTRACT_16BITS(&op->ospf_hello.hello_helloint), |
| 948 | EXTRACT_32BITS(&op->ospf_hello.hello_deadint), |
| 949 | ipaddr_string(&op->ospf_hello.hello_mask), |
| 950 | op->ospf_hello.hello_priority); |
| 951 | |
| 952 | TCHECK(op->ospf_hello.hello_dr); |
| 953 | if (op->ospf_hello.hello_dr.s_addr != 0) |
| 954 | printf("\n\t Designated Router %s", |
| 955 | ipaddr_string(&op->ospf_hello.hello_dr)); |
| 956 | |
| 957 | TCHECK(op->ospf_hello.hello_bdr); |
| 958 | if (op->ospf_hello.hello_bdr.s_addr != 0) |
| 959 | printf(", Backup Designated Router %s", |
| 960 | ipaddr_string(&op->ospf_hello.hello_bdr)); |
| 961 | |
| 962 | ap = op->ospf_hello.hello_neighbor; |
| 963 | if ((u_char *)ap < dataend) |
| 964 | printf("\n\t Neighbor List:"); |
| 965 | while ((u_char *)ap < dataend) { |
| 966 | TCHECK(*ap); |
| 967 | printf("\n\t %s", ipaddr_string(ap)); |
| 968 | ++ap; |
| 969 | } |
| 970 | break; /* HELLO */ |
| 971 | |
| 972 | case OSPF_TYPE_DD: |
| 973 | TCHECK(op->ospf_db.db_options); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 974 | printf("\n\tOptions [%s]", |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 975 | bittok2str(ospf_option_values,"none",op->ospf_db.db_options)); |
| 976 | TCHECK(op->ospf_db.db_flags); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 977 | printf(", DD Flags [%s]", |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 978 | bittok2str(ospf_dd_flag_values,"none",op->ospf_db.db_flags)); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 979 | TCHECK(op->ospf_db.db_ifmtu); |
| 980 | if (op->ospf_db.db_ifmtu) { |
| 981 | printf(", MTU: %u", EXTRACT_16BITS(&op->ospf_db.db_ifmtu)); |
| 982 | } |
| 983 | TCHECK(op->ospf_db.db_seq); |
| 984 | printf(", Sequence: 0x%08x", EXTRACT_32BITS(&op->ospf_db.db_seq)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 985 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 986 | /* Print all the LS adv's */ |
| 987 | lshp = op->ospf_db.db_lshdr; |
| 988 | while (((u_char *)lshp < dataend) && ospf_print_lshdr(lshp) != -1) { |
| 989 | ++lshp; |
| 990 | } |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 991 | break; |
| 992 | |
| 993 | case OSPF_TYPE_LS_REQ: |
| 994 | lsrp = op->ospf_lsr; |
| 995 | while ((u_char *)lsrp < dataend) { |
| 996 | TCHECK(*lsrp); |
| 997 | |
| 998 | printf("\n\t Advertising Router: %s, %s LSA (%u)", |
| 999 | ipaddr_string(&lsrp->ls_router), |
| 1000 | tok2str(lsa_values,"unknown",EXTRACT_32BITS(lsrp->ls_type)), |
| 1001 | EXTRACT_32BITS(&lsrp->ls_type)); |
| 1002 | |
| 1003 | switch (EXTRACT_32BITS(lsrp->ls_type)) { |
| 1004 | /* the LSA header for opaque LSAs was slightly changed */ |
| 1005 | case LS_TYPE_OPAQUE_LL: |
| 1006 | case LS_TYPE_OPAQUE_AL: |
| 1007 | case LS_TYPE_OPAQUE_DW: |
| 1008 | printf(", Opaque-Type: %s LSA (%u), Opaque-ID: %u", |
| 1009 | tok2str(lsa_opaque_values, "unknown",lsrp->un_ls_stateid.opaque_field.opaque_type), |
| 1010 | lsrp->un_ls_stateid.opaque_field.opaque_type, |
| 1011 | EXTRACT_24BITS(&lsrp->un_ls_stateid.opaque_field.opaque_id)); |
| 1012 | break; |
| 1013 | default: |
| 1014 | printf(", LSA-ID: %s", |
| 1015 | ipaddr_string(&lsrp->un_ls_stateid.ls_stateid)); |
| 1016 | break; |
| 1017 | } |
| 1018 | |
| 1019 | ++lsrp; |
| 1020 | } |
| 1021 | break; |
| 1022 | |
| 1023 | case OSPF_TYPE_LS_UPDATE: |
| 1024 | lsap = op->ospf_lsu.lsu_lsa; |
| 1025 | TCHECK(op->ospf_lsu.lsu_count); |
| 1026 | lsa_count_max = EXTRACT_32BITS(&op->ospf_lsu.lsu_count); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1027 | printf(", %d LSA%s",lsa_count_max, PLURAL_SUFFIX(lsa_count_max)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1028 | for (lsa_count=1;lsa_count <= lsa_count_max;lsa_count++) { |
| 1029 | printf("\n\t LSA #%u",lsa_count); |
| 1030 | lsap = (const struct lsa *)ospf_print_lsa(lsap); |
| 1031 | if (lsap == NULL) |
| 1032 | goto trunc; |
| 1033 | } |
| 1034 | break; |
| 1035 | |
| 1036 | case OSPF_TYPE_LS_ACK: |
| 1037 | lshp = op->ospf_lsa.lsa_lshdr; |
| 1038 | while (ospf_print_lshdr(lshp) != -1) { |
| 1039 | ++lshp; |
| 1040 | } |
| 1041 | break; |
| 1042 | |
| 1043 | default: |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1044 | break; |
| 1045 | } |
| 1046 | return (0); |
| 1047 | trunc: |
| 1048 | return (1); |
| 1049 | } |
| 1050 | |
| 1051 | void |
| 1052 | ospf_print(register const u_char *bp, register u_int length, |
| 1053 | const u_char *bp2 _U_) |
| 1054 | { |
| 1055 | register const struct ospfhdr *op; |
| 1056 | register const u_char *dataend; |
| 1057 | register const char *cp; |
| 1058 | |
| 1059 | op = (struct ospfhdr *)bp; |
| 1060 | |
| 1061 | /* XXX Before we do anything else, strip off the MD5 trailer */ |
| 1062 | TCHECK(op->ospf_authtype); |
| 1063 | if (EXTRACT_16BITS(&op->ospf_authtype) == OSPF_AUTH_MD5) { |
| 1064 | length -= OSPF_AUTH_MD5_LEN; |
| 1065 | snapend -= OSPF_AUTH_MD5_LEN; |
| 1066 | } |
| 1067 | |
| 1068 | /* If the type is valid translate it, or just print the type */ |
| 1069 | /* value. If it's not valid, say so and return */ |
| 1070 | TCHECK(op->ospf_type); |
| 1071 | cp = tok2str(type2str, "unknown LS-type", op->ospf_type); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1072 | printf("OSPFv%u, %s, length %u", |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1073 | op->ospf_version, |
| 1074 | cp, |
| 1075 | length); |
| 1076 | if (*cp == 'u') |
| 1077 | return; |
| 1078 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1079 | if(!vflag) { /* non verbose - so lets bail out here */ |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1080 | return; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1081 | } |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1082 | |
| 1083 | TCHECK(op->ospf_len); |
| 1084 | if (length != EXTRACT_16BITS(&op->ospf_len)) { |
| 1085 | printf(" [len %d]", EXTRACT_16BITS(&op->ospf_len)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1086 | } |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1087 | |
| 1088 | if (length > EXTRACT_16BITS(&op->ospf_len)) { |
| 1089 | dataend = bp + EXTRACT_16BITS(&op->ospf_len); |
| 1090 | } else { |
| 1091 | dataend = bp + length; |
| 1092 | } |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1093 | |
| 1094 | TCHECK(op->ospf_routerid); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1095 | printf("\n\tRouter-ID %s", ipaddr_string(&op->ospf_routerid)); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1096 | |
| 1097 | TCHECK(op->ospf_areaid); |
| 1098 | if (op->ospf_areaid.s_addr != 0) |
| 1099 | printf(", Area %s", ipaddr_string(&op->ospf_areaid)); |
| 1100 | else |
| 1101 | printf(", Backbone Area"); |
| 1102 | |
| 1103 | if (vflag) { |
| 1104 | /* Print authentication data (should we really do this?) */ |
| 1105 | TCHECK2(op->ospf_authdata[0], sizeof(op->ospf_authdata)); |
| 1106 | |
| 1107 | printf(", Authentication Type: %s (%u)", |
| 1108 | tok2str(ospf_authtype_values,"unknown",EXTRACT_16BITS(&op->ospf_authtype)), |
| 1109 | EXTRACT_16BITS(&op->ospf_authtype)); |
| 1110 | |
| 1111 | switch (EXTRACT_16BITS(&op->ospf_authtype)) { |
| 1112 | |
| 1113 | case OSPF_AUTH_NONE: |
| 1114 | break; |
| 1115 | |
| 1116 | case OSPF_AUTH_SIMPLE: |
| 1117 | printf("\n\tSimple text password: "); |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1118 | safeputs((const char *)op->ospf_authdata, OSPF_AUTH_SIMPLE_LEN); |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1119 | break; |
| 1120 | |
| 1121 | case OSPF_AUTH_MD5: |
| 1122 | printf("\n\tKey-ID: %u, Auth-Length: %u, Crypto Sequence Number: 0x%08x", |
| 1123 | *((op->ospf_authdata)+2), |
| 1124 | *((op->ospf_authdata)+3), |
| 1125 | EXTRACT_32BITS((op->ospf_authdata)+4)); |
| 1126 | break; |
| 1127 | |
| 1128 | default: |
| 1129 | return; |
| 1130 | } |
| 1131 | } |
| 1132 | /* Do rest according to version. */ |
| 1133 | switch (op->ospf_version) { |
| 1134 | |
| 1135 | case 2: |
| 1136 | /* ospf version 2 */ |
| 1137 | if (ospf_decode_v2(op, dataend)) |
| 1138 | goto trunc; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1139 | if (length > EXTRACT_16BITS(&op->ospf_len)) { |
| 1140 | if (ospf_decode_lls(op, length)) |
| 1141 | goto trunc; |
| 1142 | } |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 1143 | break; |
| 1144 | |
| 1145 | default: |
| 1146 | printf(" ospf [version %d]", op->ospf_version); |
| 1147 | break; |
| 1148 | } /* end switch on version */ |
| 1149 | |
| 1150 | return; |
| 1151 | trunc: |
| 1152 | fputs(tstr, stdout); |
| 1153 | } |