| /* @(#) $Header: /tcpdump/master/tcpdump/ospf6.h,v 1.7 2006-09-05 15:50:26 hannes 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_HELLO 1 /* Hello */ |
| #define OSPF_TYPE_DD 2 /* Database Description */ |
| #define OSPF_TYPE_LS_REQ 3 /* Link State Request */ |
| #define OSPF_TYPE_LS_UPDATE 4 /* Link State Update */ |
| #define OSPF_TYPE_LS_ACK 5 /* Link State Ack */ |
| |
| /* 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_NSSA 7 /* NSSA */ |
| #define LS_TYPE_LINK 8 /* Link LSA */ |
| #define LS_TYPE_INTRA_AP 9 /* Intra-Area-Prefix */ |
| #define LS_TYPE_INTRA_ATE 10 /* Intra-Area-TE */ |
| #define LS_TYPE_GRACE 11 /* Grace LSA */ |
| #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 |
| #define LS_SCOPE_U 0x8000 |
| |
| /* 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 |
| #define RLA_FLAG_N 0x10 |
| |
| /* lsa_prefix options */ |
| #define LSA_PREFIX_OPT_NU 0x01 |
| #define LSA_PREFIX_OPT_LA 0x02 |
| #define LSA_PREFIX_OPT_MC 0x04 |
| #define LSA_PREFIX_OPT_P 0x08 |
| #define LSA_PREFIX_OPT_DN 0x10 |
| |
| /* sla_tosmetric breakdown */ |
| #define SLA_MASK_TOS 0x7f000000 |
| #define SLA_MASK_METRIC 0x00ffffff |
| #define SLA_SHIFT_TOS 24 |
| |
| /* asla_metric */ |
| #define ASLA_FLAG_FWDADDR 0x02000000 |
| #define ASLA_FLAG_ROUTETAG 0x01000000 |
| #define ASLA_MASK_METRIC 0x00ffffff |
| |
| typedef u_int32_t rtrid_t; |
| |
| /* link state advertisement header */ |
| struct lsa6_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 lsa6_prefix { |
| u_int8_t lsa_p_len; |
| u_int8_t lsa_p_opt; |
| u_int16_t lsa_p_metric; |
| u_int8_t lsa_p_prefix[4]; |
| }; |
| |
| /* link state advertisement */ |
| struct lsa6 { |
| struct lsa6_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 rlalink6 { |
| 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 lsa6_prefix inter_ap_prefix[1]; |
| } un_inter_ap; |
| |
| /* AS external links advertisements */ |
| struct { |
| u_int32_t asla_metric; |
| struct lsa6_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 lsa6_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 lsa6_prefix intra_ap_prefix[1]; |
| } un_intra_ap; |
| } lsa_un; |
| }; |
| |
| |
| #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 lsa6_hdr db_lshdr[1]; /* may repeat */ |
| } un_db; |
| |
| /* Link State Request */ |
| struct lsr6 { |
| 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 lsa6 lsu_lsa[1]; /* may repeat */ |
| } un_lsu; |
| |
| /* Link State Acknowledgement */ |
| struct { |
| struct lsa6_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 |
| |