/* @(#) $Header: /tcpdump/master/tcpdump/ospf6.h,v 1.6 2002/12/11 07:13:56 guy Exp $ (LBL) */ /* * Copyright (c) 1991, 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) */ #define OSPF_TYPE_UMD 0 /* UMd's special monitoring packets */ #define OSPF_TYPE_HELLO 1 /* Hello */ #define OSPF_TYPE_DB 2 /* Database Description */ #define OSPF_TYPE_LSR 3 /* Link State Request */ #define OSPF_TYPE_LSU 4 /* Link State Update */ #define OSPF_TYPE_LSA 5 /* Link State Ack */ #define OSPF_TYPE_MAX 6 /* Options *_options */ #define OSPF6_OPTION_V6 0x01 /* V6 bit: A bit for peeping tom */ #define OSPF6_OPTION_E 0x02 /* E bit: External routes advertised */ #define OSPF6_OPTION_MC 0x04 /* MC bit: Multicast capable */ #define OSPF6_OPTION_N 0x08 /* N bit: For type-7 LSA */ #define OSPF6_OPTION_R 0x10 /* R bit: Router bit */ #define OSPF6_OPTION_DC 0x20 /* DC bit: Demand circuits */ /* db_flags */ #define OSPF6_DB_INIT 0x04 /* */ #define OSPF6_DB_MORE 0x02 #define OSPF6_DB_MASTER 0x01 /* ls_type */ #define LS_TYPE_ROUTER 1 /* router link */ #define LS_TYPE_NETWORK 2 /* network link */ #define LS_TYPE_INTER_AP 3 /* Inter-Area-Prefix */ #define LS_TYPE_INTER_AR 4 /* Inter-Area-Router */ #define LS_TYPE_ASE 5 /* ASE */ #define LS_TYPE_GROUP 6 /* Group membership */ #define LS_TYPE_TYPE7 7 /* Type 7 LSA */ #define LS_TYPE_LINK 8 /* Link LSA */ #define LS_TYPE_INTRA_AP 9 /* Intra-Area-Prefix */ #define LS_TYPE_MAX 10 #define LS_TYPE_MASK 0x1fff #define LS_SCOPE_LINKLOCAL 0x0000 #define LS_SCOPE_AREA 0x2000 #define LS_SCOPE_AS 0x4000 #define LS_SCOPE_MASK 0x6000 /************************************************* * * is the above a bug in the documentation? * *************************************************/ /* rla_link.link_type */ #define RLA_TYPE_ROUTER 1 /* point-to-point to another router */ #define RLA_TYPE_TRANSIT 2 /* connection to transit network */ #define RLA_TYPE_VIRTUAL 4 /* virtual link */ /* rla_flags */ #define RLA_FLAG_B 0x01 #define RLA_FLAG_E 0x02 #define RLA_FLAG_V 0x04 #define RLA_FLAG_W 0x08 /* sla_tosmetric breakdown */ #define SLA_MASK_TOS 0x7f000000 #define SLA_MASK_METRIC 0x00ffffff #define SLA_SHIFT_TOS 24 /* asla_metric */ #define ASLA_FLAG_EXTERNAL 0x04000000 #define ASLA_FLAG_FWDADDR 0x02000000 #define ASLA_FLAG_ROUTETAG 0x01000000 #define ASLA_MASK_METRIC 0x00ffffff /* multicast vertex type */ #define MCLA_VERTEX_ROUTER 1 #define MCLA_VERTEX_NETWORK 2 typedef u_int32_t rtrid_t; /* link state advertisement header */ struct lsa_hdr { u_int16_t ls_age; u_int16_t ls_type; rtrid_t ls_stateid; rtrid_t ls_router; u_int32_t ls_seq; u_int16_t ls_chksum; u_int16_t ls_length; }; struct lsa_prefix { u_int8_t lsa_p_len; u_int8_t lsa_p_opt; u_int16_t lsa_p_mbz; u_int8_t lsa_p_prefix[4]; }; /* link state advertisement */ struct lsa { struct lsa_hdr ls_hdr; /* Link state types */ union { /* Router links advertisements */ struct { union { u_int8_t flg; u_int32_t opt; } rla_flgandopt; #define rla_flags rla_flgandopt.flg #define rla_options rla_flgandopt.opt struct rlalink { u_int8_t link_type; u_int8_t link_zero[1]; u_int16_t link_metric; u_int32_t link_ifid; u_int32_t link_nifid; rtrid_t link_nrtid; } rla_link[1]; /* may repeat */ } un_rla; /* Network links advertisements */ struct { u_int32_t nla_options; rtrid_t nla_router[1]; /* may repeat */ } un_nla; /* Inter Area Prefix LSA */ struct { u_int32_t inter_ap_metric; struct lsa_prefix inter_ap_prefix[1]; } un_inter_ap; /* AS external links advertisements */ struct { u_int32_t asla_metric; struct lsa_prefix asla_prefix[1]; /* some optional fields follow */ } un_asla; #if 0 /* Summary links advertisements */ struct { struct in_addr sla_mask; u_int32_t sla_tosmetric[1]; /* may repeat */ } un_sla; /* Multicast group membership */ struct mcla { u_int32_t mcla_vtype; struct in_addr mcla_vid; } un_mcla[1]; #endif /* Type 7 LSA */ /* Link LSA */ struct llsa { union { u_int8_t pri; u_int32_t opt; } llsa_priandopt; #define llsa_priority llsa_priandopt.pri #define llsa_options llsa_priandopt.opt struct in6_addr llsa_lladdr; u_int32_t llsa_nprefix; struct lsa_prefix llsa_prefix[1]; } un_llsa; /* Intra-Area-Prefix */ struct { u_int16_t intra_ap_nprefix; u_int16_t intra_ap_lstype; rtrid_t intra_ap_lsid; rtrid_t intra_ap_rtid; struct lsa_prefix intra_ap_prefix[1]; } un_intra_ap; } lsa_un; }; /* * TOS metric struct (will be 0 or more in router links update) */ struct tos_metric { u_int8_t tos_type; u_int8_t tos_zero; u_int16_t tos_metric; }; #define OSPF_AUTH_SIZE 8 /* * the main header */ struct ospf6hdr { u_int8_t ospf6_version; u_int8_t ospf6_type; u_int16_t ospf6_len; rtrid_t ospf6_routerid; rtrid_t ospf6_areaid; u_int16_t ospf6_chksum; u_int8_t ospf6_instanceid; u_int8_t ospf6_rsvd; union { /* Hello packet */ struct { u_int32_t hello_ifid; union { u_int8_t pri; u_int32_t opt; } hello_priandopt; #define hello_priority hello_priandopt.pri #define hello_options hello_priandopt.opt u_int16_t hello_helloint; u_int16_t hello_deadint; rtrid_t hello_dr; rtrid_t hello_bdr; rtrid_t hello_neighbor[1]; /* may repeat */ } un_hello; /* Database Description packet */ struct { u_int32_t db_options; u_int16_t db_mtu; u_int8_t db_mbz; u_int8_t db_flags; u_int32_t db_seq; struct lsa_hdr db_lshdr[1]; /* may repeat */ } un_db; /* Link State Request */ struct lsr { u_int16_t ls_mbz; u_int16_t ls_type; rtrid_t ls_stateid; rtrid_t ls_router; } un_lsr[1]; /* may repeat */ /* Link State Update */ struct { u_int32_t lsu_count; struct lsa lsu_lsa[1]; /* may repeat */ } un_lsu; /* Link State Acknowledgement */ struct { struct lsa_hdr lsa_lshdr[1]; /* may repeat */ } un_lsa ; } ospf6_un ; }; #define ospf6_hello ospf6_un.un_hello #define ospf6_db ospf6_un.un_db #define ospf6_lsr ospf6_un.un_lsr #define ospf6_lsu ospf6_un.un_lsu #define ospf6_lsa ospf6_un.un_lsa