/* * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights * Reserved. This file contains Original Code and/or Modifications of * Original Code as defined in and that are subject to the Apple Public * Source License Version 1.0 (the 'License'). You may not use this file * except in compliance with the License. Please obtain a copy of the * License at http://www.apple.com/publicsource and read it before using * this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License." * * @APPLE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1991, 1993, 1994, 1995, 1996 * 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 OSPF_OPTION_T 0x01 /* T bit: TOS support */ #define OSPF_OPTION_E 0x02 /* E bit: External routes advertised */ #define OSPF_OPTION_MC 0x04 /* MC bit: Multicast capable */ /* ospf_authtype */ #define OSPF_AUTH_NONE 0 /* No auth-data */ #define OSPF_AUTH_SIMPLE 1 /* Simple password */ /* db_flags */ #define OSPF_DB_INIT 0x04 /* */ #define OSPF_DB_MORE 0x02 #define OSPF_DB_MASTER 0x01 /* ls_type */ #define LS_TYPE_ROUTER 1 /* router link */ #define LS_TYPE_NETWORK 2 /* network link */ #define LS_TYPE_SUM_IP 3 /* summary link */ #define LS_TYPE_SUM_ABR 4 /* summary area link */ #define LS_TYPE_ASE 5 /* ASE */ #define LS_TYPE_GROUP 6 /* Group membership (multicast */ /* extensions 23 July 1991) */ #define LS_TYPE_MAX 7 /************************************************* * * 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_STUB 3 /* connection to stub network */ #define RLA_TYPE_VIRTUAL 4 /* virtual link */ /* rla_flags */ #define RLA_FLAG_B 0x01 #define RLA_FLAG_E 0x02 #define RLA_FLAG_W1 0x04 #define RLA_FLAG_W2 0x08 /* sla_tosmetric breakdown */ #define SLA_MASK_TOS 0x7f000000 #define SLA_MASK_METRIC 0x00ffffff #define SLA_SHIFT_TOS 24 /* asla_tosmetric breakdown */ #define ASLA_FLAG_EXTERNAL 0x80000000 #define ASLA_MASK_TOS 0x7f000000 #define ASLA_SHIFT_TOS 24 #define ASLA_MASK_METRIC 0x00ffffff /* multicast vertex type */ #define MCLA_VERTEX_ROUTER 1 #define MCLA_VERTEX_NETWORK 2 /* link state advertisement header */ struct lsa_hdr { u_short ls_age; u_char ls_options; u_char ls_type; struct in_addr ls_stateid; struct in_addr ls_router; u_int32_t ls_seq; u_short ls_chksum; u_short ls_length; } ; /* link state advertisement */ struct lsa { struct lsa_hdr ls_hdr; /* Link state types */ union { /* Router links advertisements */ struct { u_char rla_flags; u_char rla_zero[1]; u_short rla_count; struct rlalink { struct in_addr link_id; struct in_addr link_data; u_char link_type; u_char link_toscount; u_short link_tos0metric; } rla_link[1]; /* may repeat */ } un_rla; /* Network links advertisements */ struct { struct in_addr nla_mask; struct in_addr nla_router[1]; /* may repeat */ } un_nla; /* Summary links advertisements */ struct { struct in_addr sla_mask; u_int32_t sla_tosmetric[1]; /* may repeat */ } un_sla; /* AS external links advertisements */ struct { struct in_addr asla_mask; struct aslametric { u_int32_t asla_tosmetric; struct in_addr asla_forward; struct in_addr asla_tag; } asla_metric[1]; /* may repeat */ } un_asla; /* Multicast group membership */ struct mcla { u_int32_t mcla_vtype; struct in_addr mcla_vid; } un_mcla[1]; } lsa_un; } ; /* * TOS metric struct (will be 0 or more in router links update) */ struct tos_metric { u_char tos_type; u_char tos_zero; u_short tos_metric; } ; #define OSPF_AUTH_SIZE 8 /* * the main header */ struct ospfhdr { u_char ospf_version; u_char ospf_type; u_short ospf_len; struct in_addr ospf_routerid; struct in_addr ospf_areaid; u_short ospf_chksum; u_short ospf_authtype; u_char ospf_authdata[OSPF_AUTH_SIZE]; union { /* Hello packet */ struct { struct in_addr hello_mask; u_short hello_helloint; u_char hello_options; u_char hello_priority; u_int32_t hello_deadint; struct in_addr hello_dr; struct in_addr hello_bdr; struct in_addr hello_neighbor[1]; /* may repeat */ } un_hello; /* Database Description packet */ struct { u_char db_zero[2]; u_char db_options; u_char db_flags; u_int32_t db_seq; struct lsa_hdr db_lshdr[1]; /* may repeat */ } un_db; /* Link State Request */ struct lsr { u_int32_t ls_type; struct in_addr ls_stateid; struct in_addr 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 ; } ospf_un ; } ; #define ospf_hello ospf_un.un_hello #define ospf_db ospf_un.un_db #define ospf_lsr ospf_un.un_lsr #define ospf_lsu ospf_un.un_lsu #define ospf_lsa ospf_un.un_lsa