JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1 | /* @(#) $Header: /tcpdump/master/tcpdump/ospf6.h,v 1.7 2006-09-05 15:50:26 hannes Exp $ (LBL) */ |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (c) 1991, 1993, 1994, 1995, 1996, 1997 |
| 4 | * The Regents of the University of California. All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that: (1) source code distributions |
| 8 | * retain the above copyright notice and this paragraph in its entirety, (2) |
| 9 | * distributions including binary code include the above copyright notice and |
| 10 | * this paragraph in its entirety in the documentation or other materials |
| 11 | * provided with the distribution, and (3) all advertising materials mentioning |
| 12 | * features or use of this software display the following acknowledgement: |
| 13 | * ``This product includes software developed by the University of California, |
| 14 | * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of |
| 15 | * the University nor the names of its contributors may be used to endorse |
| 16 | * or promote products derived from this software without specific prior |
| 17 | * written permission. |
| 18 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED |
| 19 | * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF |
| 20 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| 21 | * |
| 22 | * OSPF support contributed by Jeffrey Honig (jch@mitchell.cit.cornell.edu) |
| 23 | */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 24 | #define OSPF_TYPE_HELLO 1 /* Hello */ |
| 25 | #define OSPF_TYPE_DD 2 /* Database Description */ |
| 26 | #define OSPF_TYPE_LS_REQ 3 /* Link State Request */ |
| 27 | #define OSPF_TYPE_LS_UPDATE 4 /* Link State Update */ |
| 28 | #define OSPF_TYPE_LS_ACK 5 /* Link State Ack */ |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 29 | |
| 30 | /* Options *_options */ |
| 31 | #define OSPF6_OPTION_V6 0x01 /* V6 bit: A bit for peeping tom */ |
| 32 | #define OSPF6_OPTION_E 0x02 /* E bit: External routes advertised */ |
| 33 | #define OSPF6_OPTION_MC 0x04 /* MC bit: Multicast capable */ |
| 34 | #define OSPF6_OPTION_N 0x08 /* N bit: For type-7 LSA */ |
| 35 | #define OSPF6_OPTION_R 0x10 /* R bit: Router bit */ |
| 36 | #define OSPF6_OPTION_DC 0x20 /* DC bit: Demand circuits */ |
| 37 | |
| 38 | |
| 39 | /* db_flags */ |
| 40 | #define OSPF6_DB_INIT 0x04 /* */ |
| 41 | #define OSPF6_DB_MORE 0x02 |
| 42 | #define OSPF6_DB_MASTER 0x01 |
| 43 | |
| 44 | /* ls_type */ |
| 45 | #define LS_TYPE_ROUTER 1 /* router link */ |
| 46 | #define LS_TYPE_NETWORK 2 /* network link */ |
| 47 | #define LS_TYPE_INTER_AP 3 /* Inter-Area-Prefix */ |
| 48 | #define LS_TYPE_INTER_AR 4 /* Inter-Area-Router */ |
| 49 | #define LS_TYPE_ASE 5 /* ASE */ |
| 50 | #define LS_TYPE_GROUP 6 /* Group membership */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 51 | #define LS_TYPE_NSSA 7 /* NSSA */ |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 52 | #define LS_TYPE_LINK 8 /* Link LSA */ |
| 53 | #define LS_TYPE_INTRA_AP 9 /* Intra-Area-Prefix */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 54 | #define LS_TYPE_INTRA_ATE 10 /* Intra-Area-TE */ |
| 55 | #define LS_TYPE_GRACE 11 /* Grace LSA */ |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 56 | #define LS_TYPE_MASK 0x1fff |
| 57 | |
| 58 | #define LS_SCOPE_LINKLOCAL 0x0000 |
| 59 | #define LS_SCOPE_AREA 0x2000 |
| 60 | #define LS_SCOPE_AS 0x4000 |
| 61 | #define LS_SCOPE_MASK 0x6000 |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 62 | #define LS_SCOPE_U 0x8000 |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 63 | |
| 64 | /* rla_link.link_type */ |
| 65 | #define RLA_TYPE_ROUTER 1 /* point-to-point to another router */ |
| 66 | #define RLA_TYPE_TRANSIT 2 /* connection to transit network */ |
| 67 | #define RLA_TYPE_VIRTUAL 4 /* virtual link */ |
| 68 | |
| 69 | /* rla_flags */ |
| 70 | #define RLA_FLAG_B 0x01 |
| 71 | #define RLA_FLAG_E 0x02 |
| 72 | #define RLA_FLAG_V 0x04 |
| 73 | #define RLA_FLAG_W 0x08 |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 74 | #define RLA_FLAG_N 0x10 |
| 75 | |
| 76 | /* lsa_prefix options */ |
| 77 | #define LSA_PREFIX_OPT_NU 0x01 |
| 78 | #define LSA_PREFIX_OPT_LA 0x02 |
| 79 | #define LSA_PREFIX_OPT_MC 0x04 |
| 80 | #define LSA_PREFIX_OPT_P 0x08 |
| 81 | #define LSA_PREFIX_OPT_DN 0x10 |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 82 | |
| 83 | /* sla_tosmetric breakdown */ |
| 84 | #define SLA_MASK_TOS 0x7f000000 |
| 85 | #define SLA_MASK_METRIC 0x00ffffff |
| 86 | #define SLA_SHIFT_TOS 24 |
| 87 | |
| 88 | /* asla_metric */ |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 89 | #define ASLA_FLAG_FWDADDR 0x02000000 |
| 90 | #define ASLA_FLAG_ROUTETAG 0x01000000 |
| 91 | #define ASLA_MASK_METRIC 0x00ffffff |
| 92 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 93 | typedef u_int32_t rtrid_t; |
| 94 | |
| 95 | /* link state advertisement header */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 96 | struct lsa6_hdr { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 97 | u_int16_t ls_age; |
| 98 | u_int16_t ls_type; |
| 99 | rtrid_t ls_stateid; |
| 100 | rtrid_t ls_router; |
| 101 | u_int32_t ls_seq; |
| 102 | u_int16_t ls_chksum; |
| 103 | u_int16_t ls_length; |
| 104 | }; |
| 105 | |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 106 | struct lsa6_prefix { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 107 | u_int8_t lsa_p_len; |
| 108 | u_int8_t lsa_p_opt; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 109 | u_int16_t lsa_p_metric; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 110 | u_int8_t lsa_p_prefix[4]; |
| 111 | }; |
| 112 | |
| 113 | /* link state advertisement */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 114 | struct lsa6 { |
| 115 | struct lsa6_hdr ls_hdr; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 116 | |
| 117 | /* Link state types */ |
| 118 | union { |
| 119 | /* Router links advertisements */ |
| 120 | struct { |
| 121 | union { |
| 122 | u_int8_t flg; |
| 123 | u_int32_t opt; |
| 124 | } rla_flgandopt; |
| 125 | #define rla_flags rla_flgandopt.flg |
| 126 | #define rla_options rla_flgandopt.opt |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 127 | struct rlalink6 { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 128 | u_int8_t link_type; |
| 129 | u_int8_t link_zero[1]; |
| 130 | u_int16_t link_metric; |
| 131 | u_int32_t link_ifid; |
| 132 | u_int32_t link_nifid; |
| 133 | rtrid_t link_nrtid; |
| 134 | } rla_link[1]; /* may repeat */ |
| 135 | } un_rla; |
| 136 | |
| 137 | /* Network links advertisements */ |
| 138 | struct { |
| 139 | u_int32_t nla_options; |
| 140 | rtrid_t nla_router[1]; /* may repeat */ |
| 141 | } un_nla; |
| 142 | |
| 143 | /* Inter Area Prefix LSA */ |
| 144 | struct { |
| 145 | u_int32_t inter_ap_metric; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 146 | struct lsa6_prefix inter_ap_prefix[1]; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 147 | } un_inter_ap; |
| 148 | |
| 149 | /* AS external links advertisements */ |
| 150 | struct { |
| 151 | u_int32_t asla_metric; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 152 | struct lsa6_prefix asla_prefix[1]; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 153 | /* some optional fields follow */ |
| 154 | } un_asla; |
| 155 | |
| 156 | #if 0 |
| 157 | /* Summary links advertisements */ |
| 158 | struct { |
| 159 | struct in_addr sla_mask; |
| 160 | u_int32_t sla_tosmetric[1]; /* may repeat */ |
| 161 | } un_sla; |
| 162 | |
| 163 | /* Multicast group membership */ |
| 164 | struct mcla { |
| 165 | u_int32_t mcla_vtype; |
| 166 | struct in_addr mcla_vid; |
| 167 | } un_mcla[1]; |
| 168 | #endif |
| 169 | |
| 170 | /* Type 7 LSA */ |
| 171 | |
| 172 | /* Link LSA */ |
| 173 | struct llsa { |
| 174 | union { |
| 175 | u_int8_t pri; |
| 176 | u_int32_t opt; |
| 177 | } llsa_priandopt; |
| 178 | #define llsa_priority llsa_priandopt.pri |
| 179 | #define llsa_options llsa_priandopt.opt |
| 180 | struct in6_addr llsa_lladdr; |
| 181 | u_int32_t llsa_nprefix; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 182 | struct lsa6_prefix llsa_prefix[1]; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 183 | } un_llsa; |
| 184 | |
| 185 | /* Intra-Area-Prefix */ |
| 186 | struct { |
| 187 | u_int16_t intra_ap_nprefix; |
| 188 | u_int16_t intra_ap_lstype; |
| 189 | rtrid_t intra_ap_lsid; |
| 190 | rtrid_t intra_ap_rtid; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 191 | struct lsa6_prefix intra_ap_prefix[1]; |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 192 | } un_intra_ap; |
| 193 | } lsa_un; |
| 194 | }; |
| 195 | |
| 196 | |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 197 | #define OSPF_AUTH_SIZE 8 |
| 198 | |
| 199 | /* |
| 200 | * the main header |
| 201 | */ |
| 202 | struct ospf6hdr { |
| 203 | u_int8_t ospf6_version; |
| 204 | u_int8_t ospf6_type; |
| 205 | u_int16_t ospf6_len; |
| 206 | rtrid_t ospf6_routerid; |
| 207 | rtrid_t ospf6_areaid; |
| 208 | u_int16_t ospf6_chksum; |
| 209 | u_int8_t ospf6_instanceid; |
| 210 | u_int8_t ospf6_rsvd; |
| 211 | union { |
| 212 | |
| 213 | /* Hello packet */ |
| 214 | struct { |
| 215 | u_int32_t hello_ifid; |
| 216 | union { |
| 217 | u_int8_t pri; |
| 218 | u_int32_t opt; |
| 219 | } hello_priandopt; |
| 220 | #define hello_priority hello_priandopt.pri |
| 221 | #define hello_options hello_priandopt.opt |
| 222 | u_int16_t hello_helloint; |
| 223 | u_int16_t hello_deadint; |
| 224 | rtrid_t hello_dr; |
| 225 | rtrid_t hello_bdr; |
| 226 | rtrid_t hello_neighbor[1]; /* may repeat */ |
| 227 | } un_hello; |
| 228 | |
| 229 | /* Database Description packet */ |
| 230 | struct { |
| 231 | u_int32_t db_options; |
| 232 | u_int16_t db_mtu; |
| 233 | u_int8_t db_mbz; |
| 234 | u_int8_t db_flags; |
| 235 | u_int32_t db_seq; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 236 | struct lsa6_hdr db_lshdr[1]; /* may repeat */ |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 237 | } un_db; |
| 238 | |
| 239 | /* Link State Request */ |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 240 | struct lsr6 { |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 241 | u_int16_t ls_mbz; |
| 242 | u_int16_t ls_type; |
| 243 | rtrid_t ls_stateid; |
| 244 | rtrid_t ls_router; |
| 245 | } un_lsr[1]; /* may repeat */ |
| 246 | |
| 247 | /* Link State Update */ |
| 248 | struct { |
| 249 | u_int32_t lsu_count; |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 250 | struct lsa6 lsu_lsa[1]; /* may repeat */ |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 251 | } un_lsu; |
| 252 | |
| 253 | /* Link State Acknowledgement */ |
| 254 | struct { |
JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 255 | struct lsa6_hdr lsa_lshdr[1]; /* may repeat */ |
The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 256 | } un_lsa ; |
| 257 | } ospf6_un ; |
| 258 | }; |
| 259 | |
| 260 | #define ospf6_hello ospf6_un.un_hello |
| 261 | #define ospf6_db ospf6_un.un_db |
| 262 | #define ospf6_lsr ospf6_un.un_lsr |
| 263 | #define ospf6_lsu ospf6_un.un_lsu |
| 264 | #define ospf6_lsa ospf6_un.un_lsa |
| 265 | |