1190207Srpaulo/* @(#) $Header: /tcpdump/master/tcpdump/ospf6.h,v 1.7 2006-09-05 15:50:26 hannes Exp $ (LBL) */ 256893Sfenner/* 356893Sfenner * Copyright (c) 1991, 1993, 1994, 1995, 1996, 1997 456893Sfenner * The Regents of the University of California. All rights reserved. 556893Sfenner * 656893Sfenner * Redistribution and use in source and binary forms, with or without 756893Sfenner * modification, are permitted provided that: (1) source code distributions 856893Sfenner * retain the above copyright notice and this paragraph in its entirety, (2) 956893Sfenner * distributions including binary code include the above copyright notice and 1056893Sfenner * this paragraph in its entirety in the documentation or other materials 1156893Sfenner * provided with the distribution, and (3) all advertising materials mentioning 1256893Sfenner * features or use of this software display the following acknowledgement: 1356893Sfenner * ``This product includes software developed by the University of California, 1456893Sfenner * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of 1556893Sfenner * the University nor the names of its contributors may be used to endorse 1656893Sfenner * or promote products derived from this software without specific prior 1756893Sfenner * written permission. 1856893Sfenner * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED 1956893Sfenner * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF 2056893Sfenner * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 2156893Sfenner * 2256893Sfenner * OSPF support contributed by Jeffrey Honig (jch@mitchell.cit.cornell.edu) 2356893Sfenner */ 24190207Srpaulo#define OSPF_TYPE_HELLO 1 /* Hello */ 25190207Srpaulo#define OSPF_TYPE_DD 2 /* Database Description */ 26190207Srpaulo#define OSPF_TYPE_LS_REQ 3 /* Link State Request */ 27190207Srpaulo#define OSPF_TYPE_LS_UPDATE 4 /* Link State Update */ 28190207Srpaulo#define OSPF_TYPE_LS_ACK 5 /* Link State Ack */ 2956893Sfenner 3056893Sfenner/* Options *_options */ 3156893Sfenner#define OSPF6_OPTION_V6 0x01 /* V6 bit: A bit for peeping tom */ 3256893Sfenner#define OSPF6_OPTION_E 0x02 /* E bit: External routes advertised */ 3356893Sfenner#define OSPF6_OPTION_MC 0x04 /* MC bit: Multicast capable */ 3456893Sfenner#define OSPF6_OPTION_N 0x08 /* N bit: For type-7 LSA */ 3556893Sfenner#define OSPF6_OPTION_R 0x10 /* R bit: Router bit */ 3656893Sfenner#define OSPF6_OPTION_DC 0x20 /* DC bit: Demand circuits */ 3756893Sfenner 3856893Sfenner 3956893Sfenner/* db_flags */ 4056893Sfenner#define OSPF6_DB_INIT 0x04 /* */ 4156893Sfenner#define OSPF6_DB_MORE 0x02 4256893Sfenner#define OSPF6_DB_MASTER 0x01 4356893Sfenner 4456893Sfenner/* ls_type */ 4556893Sfenner#define LS_TYPE_ROUTER 1 /* router link */ 4656893Sfenner#define LS_TYPE_NETWORK 2 /* network link */ 4756893Sfenner#define LS_TYPE_INTER_AP 3 /* Inter-Area-Prefix */ 4856893Sfenner#define LS_TYPE_INTER_AR 4 /* Inter-Area-Router */ 4956893Sfenner#define LS_TYPE_ASE 5 /* ASE */ 5056893Sfenner#define LS_TYPE_GROUP 6 /* Group membership */ 51190207Srpaulo#define LS_TYPE_NSSA 7 /* NSSA */ 5256893Sfenner#define LS_TYPE_LINK 8 /* Link LSA */ 5356893Sfenner#define LS_TYPE_INTRA_AP 9 /* Intra-Area-Prefix */ 54190207Srpaulo#define LS_TYPE_INTRA_ATE 10 /* Intra-Area-TE */ 55190207Srpaulo#define LS_TYPE_GRACE 11 /* Grace LSA */ 5656893Sfenner#define LS_TYPE_MASK 0x1fff 5756893Sfenner 5856893Sfenner#define LS_SCOPE_LINKLOCAL 0x0000 5956893Sfenner#define LS_SCOPE_AREA 0x2000 6056893Sfenner#define LS_SCOPE_AS 0x4000 6156893Sfenner#define LS_SCOPE_MASK 0x6000 62190207Srpaulo#define LS_SCOPE_U 0x8000 6356893Sfenner 6456893Sfenner/* rla_link.link_type */ 6556893Sfenner#define RLA_TYPE_ROUTER 1 /* point-to-point to another router */ 6656893Sfenner#define RLA_TYPE_TRANSIT 2 /* connection to transit network */ 6756893Sfenner#define RLA_TYPE_VIRTUAL 4 /* virtual link */ 6856893Sfenner 6956893Sfenner/* rla_flags */ 7056893Sfenner#define RLA_FLAG_B 0x01 7156893Sfenner#define RLA_FLAG_E 0x02 7256893Sfenner#define RLA_FLAG_V 0x04 7356893Sfenner#define RLA_FLAG_W 0x08 74190207Srpaulo#define RLA_FLAG_N 0x10 7556893Sfenner 76190207Srpaulo/* lsa_prefix options */ 77190207Srpaulo#define LSA_PREFIX_OPT_NU 0x01 78190207Srpaulo#define LSA_PREFIX_OPT_LA 0x02 79190207Srpaulo#define LSA_PREFIX_OPT_MC 0x04 80190207Srpaulo#define LSA_PREFIX_OPT_P 0x08 81190207Srpaulo#define LSA_PREFIX_OPT_DN 0x10 82190207Srpaulo 8356893Sfenner/* sla_tosmetric breakdown */ 8456893Sfenner#define SLA_MASK_TOS 0x7f000000 8556893Sfenner#define SLA_MASK_METRIC 0x00ffffff 8656893Sfenner#define SLA_SHIFT_TOS 24 8756893Sfenner 8875115Sfenner/* asla_metric */ 8975115Sfenner#define ASLA_FLAG_FWDADDR 0x02000000 9075115Sfenner#define ASLA_FLAG_ROUTETAG 0x01000000 9156893Sfenner#define ASLA_MASK_METRIC 0x00ffffff 9256893Sfenner 9356893Sfennertypedef u_int32_t rtrid_t; 9456893Sfenner 9556893Sfenner/* link state advertisement header */ 96190207Srpaulostruct lsa6_hdr { 9756893Sfenner u_int16_t ls_age; 9856893Sfenner u_int16_t ls_type; 9956893Sfenner rtrid_t ls_stateid; 10056893Sfenner rtrid_t ls_router; 10156893Sfenner u_int32_t ls_seq; 10256893Sfenner u_int16_t ls_chksum; 10356893Sfenner u_int16_t ls_length; 104127668Sbms}; 10556893Sfenner 106190207Srpaulostruct lsa6_prefix { 10756893Sfenner u_int8_t lsa_p_len; 10856893Sfenner u_int8_t lsa_p_opt; 109190207Srpaulo u_int16_t lsa_p_metric; 11056893Sfenner u_int8_t lsa_p_prefix[4]; 11156893Sfenner}; 11256893Sfenner 11356893Sfenner/* link state advertisement */ 114190207Srpaulostruct lsa6 { 115190207Srpaulo struct lsa6_hdr ls_hdr; 11656893Sfenner 11756893Sfenner /* Link state types */ 11856893Sfenner union { 11956893Sfenner /* Router links advertisements */ 12056893Sfenner struct { 12156893Sfenner union { 12256893Sfenner u_int8_t flg; 12356893Sfenner u_int32_t opt; 12456893Sfenner } rla_flgandopt; 12556893Sfenner#define rla_flags rla_flgandopt.flg 12656893Sfenner#define rla_options rla_flgandopt.opt 127190207Srpaulo struct rlalink6 { 12856893Sfenner u_int8_t link_type; 12956893Sfenner u_int8_t link_zero[1]; 13056893Sfenner u_int16_t link_metric; 13156893Sfenner u_int32_t link_ifid; 13256893Sfenner u_int32_t link_nifid; 13356893Sfenner rtrid_t link_nrtid; 13456893Sfenner } rla_link[1]; /* may repeat */ 13556893Sfenner } un_rla; 13656893Sfenner 13756893Sfenner /* Network links advertisements */ 13856893Sfenner struct { 13956893Sfenner u_int32_t nla_options; 14056893Sfenner rtrid_t nla_router[1]; /* may repeat */ 14156893Sfenner } un_nla; 14256893Sfenner 14356893Sfenner /* Inter Area Prefix LSA */ 14456893Sfenner struct { 14556893Sfenner u_int32_t inter_ap_metric; 146190207Srpaulo struct lsa6_prefix inter_ap_prefix[1]; 14756893Sfenner } un_inter_ap; 14856893Sfenner 14975115Sfenner /* AS external links advertisements */ 15075115Sfenner struct { 15175115Sfenner u_int32_t asla_metric; 152190207Srpaulo struct lsa6_prefix asla_prefix[1]; 15375115Sfenner /* some optional fields follow */ 15475115Sfenner } un_asla; 15575115Sfenner 15656893Sfenner#if 0 15756893Sfenner /* Summary links advertisements */ 15856893Sfenner struct { 15956893Sfenner struct in_addr sla_mask; 16056893Sfenner u_int32_t sla_tosmetric[1]; /* may repeat */ 16156893Sfenner } un_sla; 16256893Sfenner 16356893Sfenner /* Multicast group membership */ 16456893Sfenner struct mcla { 16556893Sfenner u_int32_t mcla_vtype; 16656893Sfenner struct in_addr mcla_vid; 16756893Sfenner } un_mcla[1]; 16856893Sfenner#endif 16956893Sfenner 17056893Sfenner /* Type 7 LSA */ 17156893Sfenner 17256893Sfenner /* Link LSA */ 17356893Sfenner struct llsa { 17456893Sfenner union { 17556893Sfenner u_int8_t pri; 17656893Sfenner u_int32_t opt; 17756893Sfenner } llsa_priandopt; 17856893Sfenner#define llsa_priority llsa_priandopt.pri 17956893Sfenner#define llsa_options llsa_priandopt.opt 18056893Sfenner struct in6_addr llsa_lladdr; 18156893Sfenner u_int32_t llsa_nprefix; 182190207Srpaulo struct lsa6_prefix llsa_prefix[1]; 18356893Sfenner } un_llsa; 18456893Sfenner 18556893Sfenner /* Intra-Area-Prefix */ 18656893Sfenner struct { 18756893Sfenner u_int16_t intra_ap_nprefix; 18856893Sfenner u_int16_t intra_ap_lstype; 18956893Sfenner rtrid_t intra_ap_lsid; 19056893Sfenner rtrid_t intra_ap_rtid; 191190207Srpaulo struct lsa6_prefix intra_ap_prefix[1]; 19256893Sfenner } un_intra_ap; 19356893Sfenner } lsa_un; 194127668Sbms}; 19556893Sfenner 19656893Sfenner 19756893Sfenner#define OSPF_AUTH_SIZE 8 19856893Sfenner 19956893Sfenner/* 20056893Sfenner * the main header 20156893Sfenner */ 20256893Sfennerstruct ospf6hdr { 20356893Sfenner u_int8_t ospf6_version; 20456893Sfenner u_int8_t ospf6_type; 20556893Sfenner u_int16_t ospf6_len; 20656893Sfenner rtrid_t ospf6_routerid; 20756893Sfenner rtrid_t ospf6_areaid; 20856893Sfenner u_int16_t ospf6_chksum; 20956893Sfenner u_int8_t ospf6_instanceid; 21056893Sfenner u_int8_t ospf6_rsvd; 21156893Sfenner union { 21256893Sfenner 21356893Sfenner /* Hello packet */ 21456893Sfenner struct { 21556893Sfenner u_int32_t hello_ifid; 21656893Sfenner union { 21756893Sfenner u_int8_t pri; 21856893Sfenner u_int32_t opt; 21956893Sfenner } hello_priandopt; 22056893Sfenner#define hello_priority hello_priandopt.pri 22156893Sfenner#define hello_options hello_priandopt.opt 22256893Sfenner u_int16_t hello_helloint; 22356893Sfenner u_int16_t hello_deadint; 22456893Sfenner rtrid_t hello_dr; 22556893Sfenner rtrid_t hello_bdr; 22656893Sfenner rtrid_t hello_neighbor[1]; /* may repeat */ 22756893Sfenner } un_hello; 22856893Sfenner 22956893Sfenner /* Database Description packet */ 23056893Sfenner struct { 23156893Sfenner u_int32_t db_options; 23256893Sfenner u_int16_t db_mtu; 23356893Sfenner u_int8_t db_mbz; 23456893Sfenner u_int8_t db_flags; 23556893Sfenner u_int32_t db_seq; 236190207Srpaulo struct lsa6_hdr db_lshdr[1]; /* may repeat */ 23756893Sfenner } un_db; 23856893Sfenner 23956893Sfenner /* Link State Request */ 240190207Srpaulo struct lsr6 { 24156893Sfenner u_int16_t ls_mbz; 24256893Sfenner u_int16_t ls_type; 24356893Sfenner rtrid_t ls_stateid; 24456893Sfenner rtrid_t ls_router; 24556893Sfenner } un_lsr[1]; /* may repeat */ 24656893Sfenner 24756893Sfenner /* Link State Update */ 24856893Sfenner struct { 24956893Sfenner u_int32_t lsu_count; 250190207Srpaulo struct lsa6 lsu_lsa[1]; /* may repeat */ 25156893Sfenner } un_lsu; 25256893Sfenner 25356893Sfenner /* Link State Acknowledgement */ 25456893Sfenner struct { 255190207Srpaulo struct lsa6_hdr lsa_lshdr[1]; /* may repeat */ 25656893Sfenner } un_lsa ; 25756893Sfenner } ospf6_un ; 258127668Sbms}; 25956893Sfenner 26056893Sfenner#define ospf6_hello ospf6_un.un_hello 26156893Sfenner#define ospf6_db ospf6_un.un_db 26256893Sfenner#define ospf6_lsr ospf6_un.un_lsr 26356893Sfenner#define ospf6_lsu ospf6_un.un_lsu 26456893Sfenner#define ospf6_lsa ospf6_un.un_lsa 26556893Sfenner 266