| /* |
| * Copyright (c) 1992, 1993, 1994, 1995, 1996, 1997 |
| * The Regents of the University of California. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that: (1) source code distributions |
| * retain the above copyright notice and this paragraph in its entirety, (2) |
| * distributions including binary code include the above copyright notice and |
| * this paragraph in its entirety in the documentation or other materials |
| * provided with the distribution, and (3) all advertising materials mentioning |
| * features or use of this software display the following acknowledgement: |
| * ``This product includes software developed by the University of California, |
| * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of |
| * the University nor the names of its contributors may be used to endorse |
| * or promote products derived from this software without specific prior |
| * written permission. |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * OSPF support contributed by Jeffrey Honig (jch@mitchell.cit.cornell.edu) |
| */ |
| |
| /* \summary: Open Shortest Path First (OSPF) printer */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include <config.h> |
| #endif |
| |
| #include "netdissect-stdinc.h" |
| |
| #include "netdissect.h" |
| #include "addrtoname.h" |
| #include "extract.h" |
| #include "gmpls.h" |
| |
| #include "ospf.h" |
| |
| |
| static const struct tok ospf_option_values[] = { |
| { OSPF_OPTION_MT, "MultiTopology" }, /* draft-ietf-ospf-mt-09 */ |
| { OSPF_OPTION_E, "External" }, |
| { OSPF_OPTION_MC, "Multicast" }, |
| { OSPF_OPTION_NP, "NSSA" }, |
| { OSPF_OPTION_L, "LLS" }, |
| { OSPF_OPTION_DC, "Demand Circuit" }, |
| { OSPF_OPTION_O, "Opaque" }, |
| { OSPF_OPTION_DN, "Up/Down" }, |
| { 0, NULL } |
| }; |
| |
| static const struct tok ospf_authtype_values[] = { |
| { OSPF_AUTH_NONE, "none" }, |
| { OSPF_AUTH_SIMPLE, "simple" }, |
| { OSPF_AUTH_MD5, "MD5" }, |
| { 0, NULL } |
| }; |
| |
| static const struct tok ospf_rla_flag_values[] = { |
| { RLA_FLAG_B, "ABR" }, |
| { RLA_FLAG_E, "ASBR" }, |
| { RLA_FLAG_W1, "Virtual" }, |
| { RLA_FLAG_W2, "W2" }, |
| { 0, NULL } |
| }; |
| |
| static const struct tok type2str[] = { |
| { OSPF_TYPE_HELLO, "Hello" }, |
| { OSPF_TYPE_DD, "Database Description" }, |
| { OSPF_TYPE_LS_REQ, "LS-Request" }, |
| { OSPF_TYPE_LS_UPDATE, "LS-Update" }, |
| { OSPF_TYPE_LS_ACK, "LS-Ack" }, |
| { 0, NULL } |
| }; |
| |
| static const struct tok lsa_values[] = { |
| { LS_TYPE_ROUTER, "Router" }, |
| { LS_TYPE_NETWORK, "Network" }, |
| { LS_TYPE_SUM_IP, "Summary" }, |
| { LS_TYPE_SUM_ABR, "ASBR Summary" }, |
| { LS_TYPE_ASE, "External" }, |
| { LS_TYPE_GROUP, "Multicast Group" }, |
| { LS_TYPE_NSSA, "NSSA" }, |
| { LS_TYPE_OPAQUE_LL, "Link Local Opaque" }, |
| { LS_TYPE_OPAQUE_AL, "Area Local Opaque" }, |
| { LS_TYPE_OPAQUE_DW, "Domain Wide Opaque" }, |
| { 0, NULL } |
| }; |
| |
| static const struct tok ospf_dd_flag_values[] = { |
| { OSPF_DB_INIT, "Init" }, |
| { OSPF_DB_MORE, "More" }, |
| { OSPF_DB_MASTER, "Master" }, |
| { OSPF_DB_RESYNC, "OOBResync" }, |
| { 0, NULL } |
| }; |
| |
| static const struct tok lsa_opaque_values[] = { |
| { LS_OPAQUE_TYPE_TE, "Traffic Engineering" }, |
| { LS_OPAQUE_TYPE_GRACE, "Graceful restart" }, |
| { LS_OPAQUE_TYPE_RI, "Router Information" }, |
| { 0, NULL } |
| }; |
| |
| static const struct tok lsa_opaque_te_tlv_values[] = { |
| { LS_OPAQUE_TE_TLV_ROUTER, "Router Address" }, |
| { LS_OPAQUE_TE_TLV_LINK, "Link" }, |
| { 0, NULL } |
| }; |
| |
| static const struct tok lsa_opaque_te_link_tlv_subtlv_values[] = { |
| { LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE, "Link Type" }, |
| { LS_OPAQUE_TE_LINK_SUBTLV_LINK_ID, "Link ID" }, |
| { LS_OPAQUE_TE_LINK_SUBTLV_LOCAL_IP, "Local Interface IP address" }, |
| { LS_OPAQUE_TE_LINK_SUBTLV_REMOTE_IP, "Remote Interface IP address" }, |
| { LS_OPAQUE_TE_LINK_SUBTLV_TE_METRIC, "Traffic Engineering Metric" }, |
| { LS_OPAQUE_TE_LINK_SUBTLV_MAX_BW, "Maximum Bandwidth" }, |
| { LS_OPAQUE_TE_LINK_SUBTLV_MAX_RES_BW, "Maximum Reservable Bandwidth" }, |
| { LS_OPAQUE_TE_LINK_SUBTLV_UNRES_BW, "Unreserved Bandwidth" }, |
| { LS_OPAQUE_TE_LINK_SUBTLV_ADMIN_GROUP, "Administrative Group" }, |
| { LS_OPAQUE_TE_LINK_SUBTLV_LINK_LOCAL_REMOTE_ID, "Link Local/Remote Identifier" }, |
| { LS_OPAQUE_TE_LINK_SUBTLV_LINK_PROTECTION_TYPE, "Link Protection Type" }, |
| { LS_OPAQUE_TE_LINK_SUBTLV_INTF_SW_CAP_DESCR, "Interface Switching Capability" }, |
| { LS_OPAQUE_TE_LINK_SUBTLV_SHARED_RISK_GROUP, "Shared Risk Link Group" }, |
| { LS_OPAQUE_TE_LINK_SUBTLV_BW_CONSTRAINTS, "Bandwidth Constraints" }, |
| { 0, NULL } |
| }; |
| |
| static const struct tok lsa_opaque_grace_tlv_values[] = { |
| { LS_OPAQUE_GRACE_TLV_PERIOD, "Grace Period" }, |
| { LS_OPAQUE_GRACE_TLV_REASON, "Graceful restart Reason" }, |
| { LS_OPAQUE_GRACE_TLV_INT_ADDRESS, "IPv4 interface address" }, |
| { 0, NULL } |
| }; |
| |
| static const struct tok lsa_opaque_grace_tlv_reason_values[] = { |
| { LS_OPAQUE_GRACE_TLV_REASON_UNKNOWN, "Unknown" }, |
| { LS_OPAQUE_GRACE_TLV_REASON_SW_RESTART, "Software Restart" }, |
| { LS_OPAQUE_GRACE_TLV_REASON_SW_UPGRADE, "Software Reload/Upgrade" }, |
| { LS_OPAQUE_GRACE_TLV_REASON_CP_SWITCH, "Control Processor Switch" }, |
| { 0, NULL } |
| }; |
| |
| static const struct tok lsa_opaque_te_tlv_link_type_sub_tlv_values[] = { |
| { LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE_PTP, "Point-to-point" }, |
| { LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE_MA, "Multi-Access" }, |
| { 0, NULL } |
| }; |
| |
| static const struct tok lsa_opaque_ri_tlv_values[] = { |
| { LS_OPAQUE_RI_TLV_CAP, "Router Capabilities" }, |
| { 0, NULL } |
| }; |
| |
| static const struct tok lsa_opaque_ri_tlv_cap_values[] = { |
| { 1, "Reserved" }, |
| { 2, "Reserved" }, |
| { 4, "Reserved" }, |
| { 8, "Reserved" }, |
| { 16, "graceful restart capable" }, |
| { 32, "graceful restart helper" }, |
| { 64, "Stub router support" }, |
| { 128, "Traffic engineering" }, |
| { 256, "p2p over LAN" }, |
| { 512, "path computation server" }, |
| { 0, NULL } |
| }; |
| |
| static const struct tok ospf_lls_tlv_values[] = { |
| { OSPF_LLS_EO, "Extended Options" }, |
| { OSPF_LLS_MD5, "MD5 Authentication" }, |
| { 0, NULL } |
| }; |
| |
| static const struct tok ospf_lls_eo_options[] = { |
| { OSPF_LLS_EO_LR, "LSDB resync" }, |
| { OSPF_LLS_EO_RS, "Restart" }, |
| { 0, NULL } |
| }; |
| |
| int |
| ospf_grace_lsa_print(netdissect_options *ndo, |
| const u_char *tptr, u_int ls_length) |
| { |
| u_int tlv_type, tlv_length; |
| |
| |
| while (ls_length > 0) { |
| ND_TCHECK_4(tptr); |
| if (ls_length < 4) { |
| ND_PRINT("\n\t Remaining LS length %u < 4", ls_length); |
| return -1; |
| } |
| tlv_type = GET_BE_U_2(tptr); |
| tlv_length = GET_BE_U_2(tptr + 2); |
| tptr+=4; |
| ls_length-=4; |
| |
| ND_PRINT("\n\t %s TLV (%u), length %u, value: ", |
| tok2str(lsa_opaque_grace_tlv_values,"unknown",tlv_type), |
| tlv_type, |
| tlv_length); |
| |
| if (tlv_length > ls_length) { |
| ND_PRINT("\n\t Bogus length %u > %u", tlv_length, |
| ls_length); |
| return -1; |
| } |
| |
| /* Infinite loop protection. */ |
| if (tlv_type == 0 || tlv_length ==0) { |
| return -1; |
| } |
| |
| ND_TCHECK_LEN(tptr, tlv_length); |
| switch(tlv_type) { |
| |
| case LS_OPAQUE_GRACE_TLV_PERIOD: |
| if (tlv_length != 4) { |
| ND_PRINT("\n\t Bogus length %u != 4", tlv_length); |
| return -1; |
| } |
| ND_PRINT("%us", GET_BE_U_4(tptr)); |
| break; |
| |
| case LS_OPAQUE_GRACE_TLV_REASON: |
| if (tlv_length != 1) { |
| ND_PRINT("\n\t Bogus length %u != 1", tlv_length); |
| return -1; |
| } |
| ND_PRINT("%s (%u)", |
| tok2str(lsa_opaque_grace_tlv_reason_values, "Unknown", GET_U_1(tptr)), |
| GET_U_1(tptr)); |
| break; |
| |
| case LS_OPAQUE_GRACE_TLV_INT_ADDRESS: |
| if (tlv_length != 4) { |
| ND_PRINT("\n\t Bogus length %u != 4", tlv_length); |
| return -1; |
| } |
| ND_PRINT("%s", GET_IPADDR_STRING(tptr)); |
| break; |
| |
| default: |
| if (ndo->ndo_vflag <= 1) { |
| if (!print_unknown_data(ndo, tptr, "\n\t ", tlv_length)) |
| return -1; |
| } |
| break; |
| |
| } |
| /* in OSPF everything has to be 32-bit aligned, including TLVs */ |
| if (tlv_length%4 != 0) |
| tlv_length+=4-(tlv_length%4); |
| ls_length-=tlv_length; |
| tptr+=tlv_length; |
| } |
| |
| return 0; |
| trunc: |
| return -1; |
| } |
| |
| int |
| ospf_te_lsa_print(netdissect_options *ndo, |
| const u_char *tptr, u_int ls_length) |
| { |
| u_int tlv_type, tlv_length, subtlv_type, subtlv_length; |
| u_int priority_level, te_class, count_srlg; |
| union { /* int to float conversion buffer for several subTLVs */ |
| float f; |
| uint32_t i; |
| } bw; |
| |
| while (ls_length != 0) { |
| ND_TCHECK_4(tptr); |
| if (ls_length < 4) { |
| ND_PRINT("\n\t Remaining LS length %u < 4", ls_length); |
| return -1; |
| } |
| tlv_type = GET_BE_U_2(tptr); |
| tlv_length = GET_BE_U_2(tptr + 2); |
| tptr+=4; |
| ls_length-=4; |
| |
| ND_PRINT("\n\t %s TLV (%u), length: %u", |
| tok2str(lsa_opaque_te_tlv_values,"unknown",tlv_type), |
| tlv_type, |
| tlv_length); |
| |
| if (tlv_length > ls_length) { |
| ND_PRINT("\n\t Bogus length %u > %u", tlv_length, |
| ls_length); |
| return -1; |
| } |
| |
| /* Infinite loop protection. */ |
| if (tlv_type == 0 || tlv_length ==0) { |
| return -1; |
| } |
| |
| switch(tlv_type) { |
| case LS_OPAQUE_TE_TLV_LINK: |
| while (tlv_length != 0) { |
| if (tlv_length < 4) { |
| ND_PRINT("\n\t Remaining TLV length %u < 4", |
| tlv_length); |
| return -1; |
| } |
| subtlv_type = GET_BE_U_2(tptr); |
| subtlv_length = GET_BE_U_2(tptr + 2); |
| tptr+=4; |
| tlv_length-=4; |
| |
| /* Infinite loop protection */ |
| if (subtlv_type == 0 || subtlv_length == 0) |
| goto invalid; |
| |
| ND_PRINT("\n\t %s subTLV (%u), length: %u", |
| tok2str(lsa_opaque_te_link_tlv_subtlv_values,"unknown",subtlv_type), |
| subtlv_type, |
| subtlv_length); |
| |
| if (tlv_length < subtlv_length) { |
| ND_PRINT("\n\t Remaining TLV length %u < %u", |
| tlv_length + 4, subtlv_length + 4); |
| return -1; |
| } |
| ND_TCHECK_LEN(tptr, subtlv_length); |
| switch(subtlv_type) { |
| case LS_OPAQUE_TE_LINK_SUBTLV_ADMIN_GROUP: |
| if (subtlv_length != 4) { |
| ND_PRINT(" != 4"); |
| goto invalid; |
| } |
| ND_PRINT(", 0x%08x", GET_BE_U_4(tptr)); |
| break; |
| case LS_OPAQUE_TE_LINK_SUBTLV_LINK_ID: |
| case LS_OPAQUE_TE_LINK_SUBTLV_LINK_LOCAL_REMOTE_ID: |
| if (subtlv_length != 4 && subtlv_length != 8) { |
| ND_PRINT(" != 4 && != 8"); |
| goto invalid; |
| } |
| ND_PRINT(", %s (0x%08x)", |
| GET_IPADDR_STRING(tptr), |
| GET_BE_U_4(tptr)); |
| if (subtlv_length == 8) /* rfc4203 */ |
| ND_PRINT(", %s (0x%08x)", |
| GET_IPADDR_STRING(tptr+4), |
| GET_BE_U_4(tptr + 4)); |
| break; |
| case LS_OPAQUE_TE_LINK_SUBTLV_LOCAL_IP: |
| case LS_OPAQUE_TE_LINK_SUBTLV_REMOTE_IP: |
| if (subtlv_length != 4) { |
| ND_PRINT(" != 4"); |
| goto invalid; |
| } |
| ND_PRINT(", %s", GET_IPADDR_STRING(tptr)); |
| break; |
| case LS_OPAQUE_TE_LINK_SUBTLV_MAX_BW: |
| case LS_OPAQUE_TE_LINK_SUBTLV_MAX_RES_BW: |
| if (subtlv_length != 4) { |
| ND_PRINT(" != 4"); |
| goto invalid; |
| } |
| bw.i = GET_BE_U_4(tptr); |
| ND_PRINT(", %.3f Mbps", bw.f * 8 / 1000000); |
| break; |
| case LS_OPAQUE_TE_LINK_SUBTLV_UNRES_BW: |
| if (subtlv_length != 32) { |
| ND_PRINT(" != 32"); |
| goto invalid; |
| } |
| for (te_class = 0; te_class < 8; te_class++) { |
| bw.i = GET_BE_U_4(tptr + te_class * 4); |
| ND_PRINT("\n\t\tTE-Class %u: %.3f Mbps", |
| te_class, |
| bw.f * 8 / 1000000); |
| } |
| break; |
| case LS_OPAQUE_TE_LINK_SUBTLV_BW_CONSTRAINTS: |
| if (subtlv_length < 4) { |
| ND_PRINT(" < 4"); |
| goto invalid; |
| } |
| /* BC Model Id (1 octet) + Reserved (3 octets) */ |
| ND_PRINT("\n\t\tBandwidth Constraints Model ID: %s (%u)", |
| tok2str(diffserv_te_bc_values, "unknown", GET_U_1(tptr)), |
| GET_U_1(tptr)); |
| if (subtlv_length % 4 != 0) { |
| ND_PRINT("\n\t\tlength %u != N x 4", subtlv_length); |
| goto invalid; |
| } |
| if (subtlv_length > 36) { |
| ND_PRINT("\n\t\tlength %u > 36", subtlv_length); |
| goto invalid; |
| } |
| /* decode BCs until the subTLV ends */ |
| for (te_class = 0; te_class < (subtlv_length-4)/4; te_class++) { |
| bw.i = GET_BE_U_4(tptr + 4 + te_class * 4); |
| ND_PRINT("\n\t\t Bandwidth constraint CT%u: %.3f Mbps", |
| te_class, |
| bw.f * 8 / 1000000); |
| } |
| break; |
| case LS_OPAQUE_TE_LINK_SUBTLV_TE_METRIC: |
| if (subtlv_length != 4) { |
| ND_PRINT(" != 4"); |
| goto invalid; |
| } |
| ND_PRINT(", Metric %u", GET_BE_U_4(tptr)); |
| break; |
| case LS_OPAQUE_TE_LINK_SUBTLV_LINK_PROTECTION_TYPE: |
| /* Protection Cap (1 octet) + Reserved ((3 octets) */ |
| if (subtlv_length != 4) { |
| ND_PRINT(" != 4"); |
| goto invalid; |
| } |
| ND_PRINT(", %s", |
| bittok2str(gmpls_link_prot_values, "none", GET_U_1(tptr))); |
| break; |
| case LS_OPAQUE_TE_LINK_SUBTLV_INTF_SW_CAP_DESCR: |
| if (subtlv_length < 36) { |
| ND_PRINT(" < 36"); |
| goto invalid; |
| } |
| /* Switching Cap (1 octet) + Encoding (1) + Reserved (2) */ |
| ND_PRINT("\n\t\tInterface Switching Capability: %s", |
| tok2str(gmpls_switch_cap_values, "Unknown", GET_U_1((tptr)))); |
| ND_PRINT("\n\t\tLSP Encoding: %s\n\t\tMax LSP Bandwidth:", |
| tok2str(gmpls_encoding_values, "Unknown", GET_U_1((tptr + 1)))); |
| for (priority_level = 0; priority_level < 8; priority_level++) { |
| bw.i = GET_BE_U_4(tptr + 4 + (priority_level * 4)); |
| ND_PRINT("\n\t\t priority level %u: %.3f Mbps", |
| priority_level, |
| bw.f * 8 / 1000000); |
| } |
| break; |
| case LS_OPAQUE_TE_LINK_SUBTLV_LINK_TYPE: |
| if (subtlv_length != 1) { |
| ND_PRINT(" != 1"); |
| goto invalid; |
| } |
| ND_PRINT(", %s (%u)", |
| tok2str(lsa_opaque_te_tlv_link_type_sub_tlv_values,"unknown",GET_U_1(tptr)), |
| GET_U_1(tptr)); |
| break; |
| |
| case LS_OPAQUE_TE_LINK_SUBTLV_SHARED_RISK_GROUP: |
| if (subtlv_length % 4 != 0) { |
| ND_PRINT(" != N x 4"); |
| goto invalid; |
| } |
| count_srlg = subtlv_length / 4; |
| if (count_srlg != 0) |
| ND_PRINT("\n\t\t Shared risk group: "); |
| while (count_srlg > 0) { |
| bw.i = GET_BE_U_4(tptr); |
| ND_PRINT("%u", bw.i); |
| tptr+=4; |
| count_srlg--; |
| if (count_srlg > 0) |
| ND_PRINT(", "); |
| } |
| break; |
| |
| default: |
| if (ndo->ndo_vflag <= 1) { |
| if (!print_unknown_data(ndo, tptr, "\n\t\t", subtlv_length)) |
| return -1; |
| } |
| break; |
| } |
| /* in OSPF everything has to be 32-bit aligned, including subTLVs */ |
| if (subtlv_length%4 != 0) |
| subtlv_length+=4-(subtlv_length%4); |
| |
| if (tlv_length < subtlv_length) { |
| ND_PRINT("\n\t Remaining TLV length %u < %u", |
| tlv_length + 4, subtlv_length + 4); |
| return -1; |
| } |
| tlv_length-=subtlv_length; |
| tptr+=subtlv_length; |
| |
| } |
| break; |
| |
| case LS_OPAQUE_TE_TLV_ROUTER: |
| if (tlv_length < 4) { |
| ND_PRINT("\n\t TLV length %u < 4", tlv_length); |
| return -1; |
| } |
| ND_PRINT(", %s", GET_IPADDR_STRING(tptr)); |
| break; |
| |
| default: |
| if (ndo->ndo_vflag <= 1) { |
| if (!print_unknown_data(ndo, tptr, "\n\t ", tlv_length)) |
| return -1; |
| } |
| break; |
| } |
| /* in OSPF everything has to be 32-bit aligned, including TLVs */ |
| if (tlv_length%4 != 0) |
| tlv_length+=4-(tlv_length%4); |
| if (tlv_length > ls_length) { |
| ND_PRINT("\n\t Bogus padded length %u > %u", tlv_length, |
| ls_length); |
| return -1; |
| } |
| ls_length-=tlv_length; |
| tptr+=tlv_length; |
| } |
| return 0; |
| trunc: |
| return -1; |
| invalid: |
| nd_print_invalid(ndo); |
| return -1; |
| } |
| |
| static int |
| ospf_print_lshdr(netdissect_options *ndo, |
| const struct lsa_hdr *lshp) |
| { |
| u_int ls_type; |
| u_int ls_length; |
| |
| ls_length = GET_BE_U_2(lshp->ls_length); |
| if (ls_length < sizeof(struct lsa_hdr)) { |
| ND_PRINT("\n\t Bogus length %u < header (%zu)", ls_length, |
| sizeof(struct lsa_hdr)); |
| return(-1); |
| } |
| ND_PRINT("\n\t Advertising Router %s, seq 0x%08x, age %us, length %u", |
| GET_IPADDR_STRING(lshp->ls_router), |
| GET_BE_U_4(lshp->ls_seq), |
| GET_BE_U_2(lshp->ls_age), |
| ls_length - (u_int)sizeof(struct lsa_hdr)); |
| ls_type = GET_U_1(lshp->ls_type); |
| switch (ls_type) { |
| /* the LSA header for opaque LSAs was slightly changed */ |
| case LS_TYPE_OPAQUE_LL: |
| case LS_TYPE_OPAQUE_AL: |
| case LS_TYPE_OPAQUE_DW: |
| ND_PRINT("\n\t %s LSA (%u), Opaque-Type %s LSA (%u), Opaque-ID %u", |
| tok2str(lsa_values,"unknown",ls_type), |
| ls_type, |
| |
| tok2str(lsa_opaque_values, |
| "unknown", |
| GET_U_1(lshp->un_lsa_id.opaque_field.opaque_type)), |
| GET_U_1(lshp->un_lsa_id.opaque_field.opaque_type), |
| GET_BE_U_3(lshp->un_lsa_id.opaque_field.opaque_id) |
| |
| ); |
| break; |
| |
| /* all other LSA types use regular style LSA headers */ |
| default: |
| ND_PRINT("\n\t %s LSA (%u), LSA-ID: %s", |
| tok2str(lsa_values,"unknown",ls_type), |
| ls_type, |
| GET_IPADDR_STRING(lshp->un_lsa_id.lsa_id)); |
| break; |
| } |
| ND_PRINT("\n\t Options: [%s]", |
| bittok2str(ospf_option_values, "none", GET_U_1(lshp->ls_options))); |
| |
| return (ls_length); |
| } |
| |
| /* draft-ietf-ospf-mt-09 */ |
| static const struct tok ospf_topology_values[] = { |
| { 0, "default" }, |
| { 1, "multicast" }, |
| { 2, "management" }, |
| { 0, NULL } |
| }; |
| |
| /* |
| * Print all the per-topology metrics. |
| */ |
| static void |
| ospf_print_tos_metrics(netdissect_options *ndo, |
| const union un_tos *tos) |
| { |
| u_int metric_count; |
| u_int toscount; |
| u_int tos_type; |
| |
| toscount = GET_U_1(tos->link.link_tos_count)+1; |
| metric_count = 0; |
| |
| /* |
| * All but the first metric contain a valid topology id. |
| */ |
| while (toscount != 0) { |
| tos_type = GET_U_1(tos->metrics.tos_type); |
| ND_PRINT("\n\t\ttopology %s (%u), metric %u", |
| tok2str(ospf_topology_values, "Unknown", |
| metric_count ? tos_type : 0), |
| metric_count ? tos_type : 0, |
| GET_BE_U_2(tos->metrics.tos_metric)); |
| metric_count++; |
| tos++; |
| toscount--; |
| } |
| } |
| |
| /* |
| * Print a single link state advertisement. If truncated or if LSA length |
| * field is less than the length of the LSA header, return NULl, else |
| * return pointer to data past end of LSA. |
| */ |
| static const uint8_t * |
| ospf_print_lsa(netdissect_options *ndo, |
| const struct lsa *lsap) |
| { |
| const uint8_t *ls_end; |
| const struct rlalink *rlp; |
| const nd_ipv4 *ap; |
| const struct aslametric *almp; |
| const struct mcla *mcp; |
| const uint8_t *lp; |
| u_int tlv_type, tlv_length, rla_count, topology; |
| int ospf_print_lshdr_ret; |
| u_int ls_length; |
| const uint8_t *tptr; |
| |
| tptr = (const uint8_t *)lsap->lsa_un.un_unknown; /* squelch compiler warnings */ |
| ospf_print_lshdr_ret = ospf_print_lshdr(ndo, &lsap->ls_hdr); |
| if (ospf_print_lshdr_ret < 0) |
| return(NULL); |
| ls_length = (u_int)ospf_print_lshdr_ret; |
| ls_end = (const uint8_t *)lsap + ls_length; |
| /* |
| * ospf_print_lshdr() returns -1 if the length is too short, |
| * so we know ls_length is >= sizeof(struct lsa_hdr). |
| */ |
| ls_length -= sizeof(struct lsa_hdr); |
| |
| switch (GET_U_1(lsap->ls_hdr.ls_type)) { |
| |
| case LS_TYPE_ROUTER: |
| ND_PRINT("\n\t Router LSA Options: [%s]", |
| bittok2str(ospf_rla_flag_values, "none", GET_U_1(lsap->lsa_un.un_rla.rla_flags))); |
| |
| rla_count = GET_BE_U_2(lsap->lsa_un.un_rla.rla_count); |
| ND_TCHECK_SIZE(lsap->lsa_un.un_rla.rla_link); |
| rlp = lsap->lsa_un.un_rla.rla_link; |
| for (u_int i = rla_count; i != 0; i--) { |
| ND_TCHECK_SIZE(rlp); |
| switch (GET_U_1(rlp->un_tos.link.link_type)) { |
| |
| case RLA_TYPE_VIRTUAL: |
| ND_PRINT("\n\t Virtual Link: Neighbor Router-ID: %s, Interface Address: %s", |
| GET_IPADDR_STRING(rlp->link_id), |
| GET_IPADDR_STRING(rlp->link_data)); |
| break; |
| |
| case RLA_TYPE_ROUTER: |
| ND_PRINT("\n\t Neighbor Router-ID: %s, Interface Address: %s", |
| GET_IPADDR_STRING(rlp->link_id), |
| GET_IPADDR_STRING(rlp->link_data)); |
| break; |
| |
| case RLA_TYPE_TRANSIT: |
| ND_PRINT("\n\t Neighbor Network-ID: %s, Interface Address: %s", |
| GET_IPADDR_STRING(rlp->link_id), |
| GET_IPADDR_STRING(rlp->link_data)); |
| break; |
| |
| case RLA_TYPE_STUB: |
| ND_PRINT("\n\t Stub Network: %s, Mask: %s", |
| GET_IPADDR_STRING(rlp->link_id), |
| GET_IPADDR_STRING(rlp->link_data)); |
| break; |
| |
| default: |
| ND_PRINT("\n\t Unknown Router Link Type (%u)", |
| GET_U_1(rlp->un_tos.link.link_type)); |
| return (ls_end); |
| } |
| |
| ospf_print_tos_metrics(ndo, &rlp->un_tos); |
| |
| rlp = (const struct rlalink *)((const u_char *)(rlp + 1) + |
| (GET_U_1(rlp->un_tos.link.link_tos_count) * sizeof(union un_tos))); |
| } |
| break; |
| |
| case LS_TYPE_NETWORK: |
| ND_PRINT("\n\t Mask %s\n\t Connected Routers:", |
| GET_IPADDR_STRING(lsap->lsa_un.un_nla.nla_mask)); |
| ap = lsap->lsa_un.un_nla.nla_router; |
| while ((const u_char *)ap < ls_end) { |
| ND_TCHECK_SIZE(ap); |
| ND_PRINT("\n\t %s", GET_IPADDR_STRING(*ap)); |
| ++ap; |
| } |
| break; |
| |
| case LS_TYPE_SUM_IP: |
| ND_TCHECK_4(lsap->lsa_un.un_nla.nla_mask); |
| ND_PRINT("\n\t Mask %s", |
| GET_IPADDR_STRING(lsap->lsa_un.un_sla.sla_mask)); |
| ND_TCHECK_SIZE(lsap->lsa_un.un_sla.sla_tosmetric); |
| lp = (const uint8_t *)lsap->lsa_un.un_sla.sla_tosmetric; |
| while (lp < ls_end) { |
| uint32_t ul; |
| |
| ul = GET_BE_U_4(lp); |
| topology = (ul & SLA_MASK_TOS) >> SLA_SHIFT_TOS; |
| ND_PRINT("\n\t\ttopology %s (%u) metric %u", |
| tok2str(ospf_topology_values, "Unknown", topology), |
| topology, |
| ul & SLA_MASK_METRIC); |
| lp += 4; |
| } |
| break; |
| |
| case LS_TYPE_SUM_ABR: |
| ND_TCHECK_SIZE(lsap->lsa_un.un_sla.sla_tosmetric); |
| lp = (const uint8_t *)lsap->lsa_un.un_sla.sla_tosmetric; |
| while (lp < ls_end) { |
| uint32_t ul; |
| |
| ul = GET_BE_U_4(lp); |
| topology = (ul & SLA_MASK_TOS) >> SLA_SHIFT_TOS; |
| ND_PRINT("\n\t\ttopology %s (%u) metric %u", |
| tok2str(ospf_topology_values, "Unknown", topology), |
| topology, |
| ul & SLA_MASK_METRIC); |
| lp += 4; |
| } |
| break; |
| |
| case LS_TYPE_ASE: |
| case LS_TYPE_NSSA: /* fall through - those LSAs share the same format */ |
| ND_TCHECK_4(lsap->lsa_un.un_nla.nla_mask); |
| ND_PRINT("\n\t Mask %s", |
| GET_IPADDR_STRING(lsap->lsa_un.un_asla.asla_mask)); |
| |
| ND_TCHECK_SIZE(lsap->lsa_un.un_sla.sla_tosmetric); |
| almp = lsap->lsa_un.un_asla.asla_metric; |
| while ((const u_char *)almp < ls_end) { |
| uint32_t ul; |
| |
| ul = GET_BE_U_4(almp->asla_tosmetric); |
| topology = ((ul & ASLA_MASK_TOS) >> ASLA_SHIFT_TOS); |
| ND_PRINT("\n\t\ttopology %s (%u), type %u, metric", |
| tok2str(ospf_topology_values, "Unknown", topology), |
| topology, |
| (ul & ASLA_FLAG_EXTERNAL) ? 2 : 1); |
| if ((ul & ASLA_MASK_METRIC) == 0xffffff) |
| ND_PRINT(" infinite"); |
| else |
| ND_PRINT(" %u", (ul & ASLA_MASK_METRIC)); |
| |
| if (GET_IPV4_TO_NETWORK_ORDER(almp->asla_forward) != 0) { |
| ND_PRINT(", forward %s", GET_IPADDR_STRING(almp->asla_forward)); |
| } |
| if (GET_IPV4_TO_NETWORK_ORDER(almp->asla_tag) != 0) { |
| ND_PRINT(", tag %s", GET_IPADDR_STRING(almp->asla_tag)); |
| } |
| ++almp; |
| } |
| break; |
| |
| case LS_TYPE_GROUP: |
| /* Multicast extensions as of 23 July 1991 */ |
| mcp = lsap->lsa_un.un_mcla; |
| while ((const u_char *)mcp < ls_end) { |
| switch (GET_BE_U_4(mcp->mcla_vtype)) { |
| |
| case MCLA_VERTEX_ROUTER: |
| ND_PRINT("\n\t Router Router-ID %s", |
| GET_IPADDR_STRING(mcp->mcla_vid)); |
| break; |
| |
| case MCLA_VERTEX_NETWORK: |
| ND_PRINT("\n\t Network Designated Router %s", |
| GET_IPADDR_STRING(mcp->mcla_vid)); |
| break; |
| |
| default: |
| ND_PRINT("\n\t unknown VertexType (%u)", |
| GET_BE_U_4(mcp->mcla_vtype)); |
| break; |
| } |
| ++mcp; |
| } |
| break; |
| |
| case LS_TYPE_OPAQUE_LL: /* fall through */ |
| case LS_TYPE_OPAQUE_AL: |
| case LS_TYPE_OPAQUE_DW: |
| |
| switch (GET_U_1(lsap->ls_hdr.un_lsa_id.opaque_field.opaque_type)) { |
| case LS_OPAQUE_TYPE_RI: |
| tptr = (const uint8_t *)(lsap->lsa_un.un_ri_tlv); |
| |
| u_int ls_length_remaining = ls_length; |
| while (ls_length_remaining != 0) { |
| ND_TCHECK_4(tptr); |
| if (ls_length_remaining < 4) { |
| ND_PRINT("\n\t Remaining LS length %u < 4", ls_length_remaining); |
| return(ls_end); |
| } |
| tlv_type = GET_BE_U_2(tptr); |
| tlv_length = GET_BE_U_2(tptr + 2); |
| tptr+=4; |
| ls_length_remaining-=4; |
| |
| ND_PRINT("\n\t %s TLV (%u), length: %u, value: ", |
| tok2str(lsa_opaque_ri_tlv_values,"unknown",tlv_type), |
| tlv_type, |
| tlv_length); |
| |
| if (tlv_length > ls_length_remaining) { |
| ND_PRINT("\n\t Bogus length %u > remaining LS length %u", tlv_length, |
| ls_length_remaining); |
| return(ls_end); |
| } |
| ND_TCHECK_LEN(tptr, tlv_length); |
| switch(tlv_type) { |
| |
| case LS_OPAQUE_RI_TLV_CAP: |
| if (tlv_length != 4) { |
| ND_PRINT("\n\t Bogus length %u != 4", tlv_length); |
| return(ls_end); |
| } |
| ND_PRINT("Capabilities: %s", |
| bittok2str(lsa_opaque_ri_tlv_cap_values, "Unknown", GET_BE_U_4(tptr))); |
| break; |
| default: |
| if (ndo->ndo_vflag <= 1) { |
| if (!print_unknown_data(ndo, tptr, "\n\t ", tlv_length)) |
| return(ls_end); |
| } |
| break; |
| |
| } |
| tptr+=tlv_length; |
| ls_length_remaining-=tlv_length; |
| } |
| break; |
| |
| case LS_OPAQUE_TYPE_GRACE: |
| if (ospf_grace_lsa_print(ndo, (const u_char *)(lsap->lsa_un.un_grace_tlv), |
| ls_length) == -1) { |
| return(ls_end); |
| } |
| break; |
| |
| case LS_OPAQUE_TYPE_TE: |
| if (ospf_te_lsa_print(ndo, (const u_char *)(lsap->lsa_un.un_te_lsa_tlv), |
| ls_length) == -1) { |
| return(ls_end); |
| } |
| break; |
| |
| default: |
| if (ndo->ndo_vflag <= 1) { |
| if (!print_unknown_data(ndo, (const uint8_t *)lsap->lsa_un.un_unknown, |
| "\n\t ", ls_length)) |
| return(ls_end); |
| } |
| break; |
| } |
| } |
| |
| /* do we want to see an additionally hexdump ? */ |
| if (ndo->ndo_vflag> 1) |
| if (!print_unknown_data(ndo, (const uint8_t *)lsap->lsa_un.un_unknown, |
| "\n\t ", ls_length)) { |
| return(ls_end); |
| } |
| |
| return (ls_end); |
| trunc: |
| return (NULL); |
| } |
| |
| static void |
| ospf_decode_lls(netdissect_options *ndo, |
| const struct ospfhdr *op, u_int length) |
| { |
| const u_char *dptr; |
| const u_char *dataend; |
| u_int length2; |
| uint16_t lls_type, lls_len; |
| uint32_t lls_flags; |
| |
| switch (GET_U_1(op->ospf_type)) { |
| |
| case OSPF_TYPE_HELLO: |
| if (!(GET_U_1(op->ospf_hello.hello_options) & OSPF_OPTION_L)) |
| return; |
| break; |
| |
| case OSPF_TYPE_DD: |
| if (!(GET_U_1(op->ospf_db.db_options) & OSPF_OPTION_L)) |
| return; |
| break; |
| |
| default: |
| return; |
| } |
| |
| /* dig deeper if LLS data is available; see RFC4813 */ |
| length2 = GET_BE_U_2(op->ospf_len); |
| dptr = (const u_char *)op + length2; |
| dataend = (const u_char *)op + length; |
| |
| if (GET_BE_U_2(op->ospf_authtype) == OSPF_AUTH_MD5) { |
| dptr = dptr + GET_U_1(op->ospf_authdata + 3); |
| length2 += GET_U_1(op->ospf_authdata + 3); |
| } |
| if (length2 >= length) { |
| ND_PRINT("\n\t[LLS truncated]"); |
| return; |
| } |
| ND_PRINT("\n\t LLS: checksum: 0x%04x", (u_int) GET_BE_U_2(dptr)); |
| |
| dptr += 2; |
| length2 = GET_BE_U_2(dptr); |
| ND_PRINT(", length: %u", length2); |
| |
| dptr += 2; |
| while (dptr < dataend) { |
| lls_type = GET_BE_U_2(dptr); |
| ND_PRINT("\n\t %s (%u)", |
| tok2str(ospf_lls_tlv_values,"Unknown TLV",lls_type), |
| lls_type); |
| dptr += 2; |
| lls_len = GET_BE_U_2(dptr); |
| ND_PRINT(", length: %u", lls_len); |
| dptr += 2; |
| switch (lls_type) { |
| |
| case OSPF_LLS_EO: |
| if (lls_len != 4) { |
| ND_PRINT(" [should be 4]"); |
| lls_len = 4; |
| } |
| lls_flags = GET_BE_U_4(dptr); |
| ND_PRINT("\n\t Options: 0x%08x [%s]", lls_flags, |
| bittok2str(ospf_lls_eo_options, "?", lls_flags)); |
| |
| break; |
| |
| case OSPF_LLS_MD5: |
| if (lls_len != 20) { |
| ND_PRINT(" [should be 20]"); |
| lls_len = 20; |
| } |
| ND_PRINT("\n\t Sequence number: 0x%08x", GET_BE_U_4(dptr)); |
| break; |
| } |
| |
| dptr += lls_len; |
| } |
| } |
| |
| static int |
| ospf_decode_v2(netdissect_options *ndo, |
| const struct ospfhdr *op, const u_char *dataend) |
| { |
| const nd_ipv4 *ap; |
| const struct lsr *lsrp; |
| const struct lsa_hdr *lshp; |
| const struct lsa *lsap; |
| uint32_t lsa_count,lsa_count_max; |
| |
| switch (GET_U_1(op->ospf_type)) { |
| |
| case OSPF_TYPE_HELLO: |
| ND_PRINT("\n\tOptions [%s]", |
| bittok2str(ospf_option_values,"none",GET_U_1(op->ospf_hello.hello_options))); |
| |
| ND_PRINT("\n\t Hello Timer %us, Dead Timer %us, Mask %s, Priority %u", |
| GET_BE_U_2(op->ospf_hello.hello_helloint), |
| GET_BE_U_4(op->ospf_hello.hello_deadint), |
| GET_IPADDR_STRING(op->ospf_hello.hello_mask), |
| GET_U_1(op->ospf_hello.hello_priority)); |
| |
| if (GET_IPV4_TO_NETWORK_ORDER(op->ospf_hello.hello_dr) != 0) |
| ND_PRINT("\n\t Designated Router %s", |
| GET_IPADDR_STRING(op->ospf_hello.hello_dr)); |
| |
| if (GET_IPV4_TO_NETWORK_ORDER(op->ospf_hello.hello_bdr) != 0) |
| ND_PRINT(", Backup Designated Router %s", |
| GET_IPADDR_STRING(op->ospf_hello.hello_bdr)); |
| |
| ap = op->ospf_hello.hello_neighbor; |
| if ((const u_char *)ap < dataend) |
| ND_PRINT("\n\t Neighbor List:"); |
| while ((const u_char *)ap < dataend) { |
| ND_TCHECK_SIZE(ap); |
| ND_PRINT("\n\t %s", GET_IPADDR_STRING(*ap)); |
| ++ap; |
| } |
| break; /* HELLO */ |
| |
| case OSPF_TYPE_DD: |
| ND_PRINT("\n\tOptions [%s]", |
| bittok2str(ospf_option_values, "none", GET_U_1(op->ospf_db.db_options))); |
| ND_PRINT(", DD Flags [%s]", |
| bittok2str(ospf_dd_flag_values, "none", GET_U_1(op->ospf_db.db_flags))); |
| if (GET_BE_U_2(op->ospf_db.db_ifmtu)) { |
| ND_PRINT(", MTU: %u", |
| GET_BE_U_2(op->ospf_db.db_ifmtu)); |
| } |
| ND_PRINT(", Sequence: 0x%08x", GET_BE_U_4(op->ospf_db.db_seq)); |
| |
| /* Print all the LS adv's */ |
| lshp = op->ospf_db.db_lshdr; |
| while (((const u_char *)lshp < dataend) && ospf_print_lshdr(ndo, lshp) != -1) { |
| ++lshp; |
| } |
| break; |
| |
| case OSPF_TYPE_LS_REQ: |
| lsrp = op->ospf_lsr; |
| while ((const u_char *)lsrp < dataend) { |
| ND_TCHECK_SIZE(lsrp); |
| |
| ND_PRINT("\n\t Advertising Router: %s, %s LSA (%u)", |
| GET_IPADDR_STRING(lsrp->ls_router), |
| tok2str(lsa_values,"unknown",GET_BE_U_4(lsrp->ls_type)), |
| GET_BE_U_4(lsrp->ls_type)); |
| |
| switch (GET_BE_U_4(lsrp->ls_type)) { |
| /* the LSA header for opaque LSAs was slightly changed */ |
| case LS_TYPE_OPAQUE_LL: |
| case LS_TYPE_OPAQUE_AL: |
| case LS_TYPE_OPAQUE_DW: |
| ND_PRINT(", Opaque-Type: %s LSA (%u), Opaque-ID: %u", |
| tok2str(lsa_opaque_values, "unknown",GET_U_1(lsrp->un_ls_stateid.opaque_field.opaque_type)), |
| GET_U_1(lsrp->un_ls_stateid.opaque_field.opaque_type), |
| GET_BE_U_3(lsrp->un_ls_stateid.opaque_field.opaque_id)); |
| break; |
| default: |
| ND_PRINT(", LSA-ID: %s", |
| GET_IPADDR_STRING(lsrp->un_ls_stateid.ls_stateid)); |
| break; |
| } |
| |
| ++lsrp; |
| } |
| break; |
| |
| case OSPF_TYPE_LS_UPDATE: |
| lsap = op->ospf_lsu.lsu_lsa; |
| lsa_count_max = GET_BE_U_4(op->ospf_lsu.lsu_count); |
| ND_PRINT(", %u LSA%s", lsa_count_max, PLURAL_SUFFIX(lsa_count_max)); |
| for (lsa_count=1;lsa_count <= lsa_count_max;lsa_count++) { |
| ND_PRINT("\n\t LSA #%u", lsa_count); |
| lsap = (const struct lsa *)ospf_print_lsa(ndo, lsap); |
| if (lsap == NULL) |
| goto trunc; |
| } |
| break; |
| |
| case OSPF_TYPE_LS_ACK: |
| lshp = op->ospf_lsa.lsa_lshdr; |
| while (ospf_print_lshdr(ndo, lshp) != -1) { |
| ++lshp; |
| } |
| break; |
| |
| default: |
| break; |
| } |
| return (0); |
| trunc: |
| return (1); |
| } |
| |
| void |
| ospf_print(netdissect_options *ndo, |
| const u_char *bp, u_int length, |
| const u_char *bp2 _U_) |
| { |
| const struct ospfhdr *op; |
| const u_char *dataend; |
| const char *cp; |
| |
| ndo->ndo_protocol = "ospf2"; |
| op = (const struct ospfhdr *)bp; |
| |
| /* XXX Before we do anything else, strip off the MD5 trailer */ |
| if (GET_BE_U_2(op->ospf_authtype) == OSPF_AUTH_MD5) { |
| length -= OSPF_AUTH_MD5_LEN; |
| ndo->ndo_snapend -= OSPF_AUTH_MD5_LEN; |
| } |
| |
| /* If the type is valid translate it, or just print the type */ |
| /* value. If it's not valid, say so and return */ |
| cp = tok2str(type2str, "unknown LS-type %u", GET_U_1(op->ospf_type)); |
| ND_PRINT("OSPFv%u, %s, length %u", GET_U_1(op->ospf_version), cp, |
| length); |
| if (*cp == 'u') |
| return; |
| |
| if (!ndo->ndo_vflag) { /* non verbose - so lets bail out here */ |
| return; |
| } |
| |
| if (length != GET_BE_U_2(op->ospf_len)) { |
| ND_PRINT(" [len %u]", GET_BE_U_2(op->ospf_len)); |
| } |
| |
| if (length > GET_BE_U_2(op->ospf_len)) { |
| dataend = bp + GET_BE_U_2(op->ospf_len); |
| } else { |
| dataend = bp + length; |
| } |
| |
| ND_PRINT("\n\tRouter-ID %s", GET_IPADDR_STRING(op->ospf_routerid)); |
| |
| if (GET_IPV4_TO_NETWORK_ORDER(op->ospf_areaid) != 0) |
| ND_PRINT(", Area %s", GET_IPADDR_STRING(op->ospf_areaid)); |
| else |
| ND_PRINT(", Backbone Area"); |
| |
| if (ndo->ndo_vflag) { |
| /* Print authentication data (should we really do this?) */ |
| ND_TCHECK_LEN(op->ospf_authdata, sizeof(op->ospf_authdata)); |
| |
| ND_PRINT(", Authentication Type: %s (%u)", |
| tok2str(ospf_authtype_values, "unknown", GET_BE_U_2(op->ospf_authtype)), |
| GET_BE_U_2(op->ospf_authtype)); |
| |
| switch (GET_BE_U_2(op->ospf_authtype)) { |
| |
| case OSPF_AUTH_NONE: |
| break; |
| |
| case OSPF_AUTH_SIMPLE: |
| ND_PRINT("\n\tSimple text password: "); |
| (void)nd_printzp(ndo, op->ospf_authdata, OSPF_AUTH_SIMPLE_LEN, NULL); |
| break; |
| |
| case OSPF_AUTH_MD5: |
| ND_PRINT("\n\tKey-ID: %u, Auth-Length: %u, Crypto Sequence Number: 0x%08x", |
| GET_U_1(op->ospf_authdata + 2), |
| GET_U_1(op->ospf_authdata + 3), |
| GET_BE_U_4((op->ospf_authdata) + 4)); |
| break; |
| |
| default: |
| return; |
| } |
| } |
| /* Do rest according to version. */ |
| switch (GET_U_1(op->ospf_version)) { |
| |
| case 2: |
| /* ospf version 2 */ |
| if (ospf_decode_v2(ndo, op, dataend)) |
| goto trunc; |
| if (length > GET_BE_U_2(op->ospf_len)) |
| ospf_decode_lls(ndo, op, length); |
| break; |
| |
| default: |
| ND_PRINT(" ospf [version %u]", GET_U_1(op->ospf_version)); |
| break; |
| } /* end switch on version */ |
| |
| return; |
| trunc: |
| nd_trunc_longjmp(ndo); |
| } |
