Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 1 | /* |
Sven Eckelmann | 567db7b | 2012-01-01 00:41:38 +0100 | [diff] [blame] | 2 | * Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 3 | * |
| 4 | * Marek Lindner, Simon Wunderlich |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of version 2 of the GNU General Public |
| 8 | * License as published by the Free Software Foundation. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, but |
| 11 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | * General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 18 | * 02110-1301, USA |
| 19 | * |
| 20 | */ |
| 21 | |
| 22 | #ifndef _NET_BATMAN_ADV_PACKET_H_ |
| 23 | #define _NET_BATMAN_ADV_PACKET_H_ |
| 24 | |
| 25 | #define ETH_P_BATMAN 0x4305 /* unofficial/not registered Ethertype */ |
| 26 | |
Sven Eckelmann | e8958db | 2011-06-04 11:26:00 +0200 | [diff] [blame] | 27 | enum bat_packettype { |
Marek Lindner | b6da4bf | 2011-07-29 17:31:50 +0200 | [diff] [blame] | 28 | BAT_OGM = 0x01, |
| 29 | BAT_ICMP = 0x02, |
| 30 | BAT_UNICAST = 0x03, |
| 31 | BAT_BCAST = 0x04, |
| 32 | BAT_VIS = 0x05, |
Antonio Quartulli | a73105b | 2011-04-27 14:27:44 +0200 | [diff] [blame] | 33 | BAT_UNICAST_FRAG = 0x06, |
Marek Lindner | b6da4bf | 2011-07-29 17:31:50 +0200 | [diff] [blame] | 34 | BAT_TT_QUERY = 0x07, |
| 35 | BAT_ROAM_ADV = 0x08 |
Sven Eckelmann | e8958db | 2011-06-04 11:26:00 +0200 | [diff] [blame] | 36 | }; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 37 | |
| 38 | /* this file is included by batctl which needs these defines */ |
Antonio Quartulli | 3b27ffb | 2011-05-28 14:51:06 +0200 | [diff] [blame] | 39 | #define COMPAT_VERSION 14 |
Sven Eckelmann | e8958db | 2011-06-04 11:26:00 +0200 | [diff] [blame] | 40 | |
| 41 | enum batman_flags { |
| 42 | PRIMARIES_FIRST_HOP = 1 << 4, |
| 43 | VIS_SERVER = 1 << 5, |
| 44 | DIRECTLINK = 1 << 6 |
| 45 | }; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 46 | |
| 47 | /* ICMP message types */ |
Sven Eckelmann | e8958db | 2011-06-04 11:26:00 +0200 | [diff] [blame] | 48 | enum icmp_packettype { |
| 49 | ECHO_REPLY = 0, |
| 50 | DESTINATION_UNREACHABLE = 3, |
| 51 | ECHO_REQUEST = 8, |
| 52 | TTL_EXCEEDED = 11, |
| 53 | PARAMETER_PROBLEM = 12 |
| 54 | }; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 55 | |
| 56 | /* vis defines */ |
Sven Eckelmann | e8958db | 2011-06-04 11:26:00 +0200 | [diff] [blame] | 57 | enum vis_packettype { |
| 58 | VIS_TYPE_SERVER_SYNC = 0, |
| 59 | VIS_TYPE_CLIENT_UPDATE = 1 |
| 60 | }; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 61 | |
| 62 | /* fragmentation defines */ |
Sven Eckelmann | e8958db | 2011-06-04 11:26:00 +0200 | [diff] [blame] | 63 | enum unicast_frag_flags { |
| 64 | UNI_FRAG_HEAD = 1 << 0, |
| 65 | UNI_FRAG_LARGETAIL = 1 << 1 |
| 66 | }; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 67 | |
Antonio Quartulli | a73105b | 2011-04-27 14:27:44 +0200 | [diff] [blame] | 68 | /* TT_QUERY subtypes */ |
| 69 | #define TT_QUERY_TYPE_MASK 0x3 |
| 70 | |
| 71 | enum tt_query_packettype { |
| 72 | TT_REQUEST = 0, |
| 73 | TT_RESPONSE = 1 |
| 74 | }; |
| 75 | |
| 76 | /* TT_QUERY flags */ |
| 77 | enum tt_query_flags { |
| 78 | TT_FULL_TABLE = 1 << 2 |
| 79 | }; |
| 80 | |
Antonio Quartulli | 5fbc159 | 2011-06-17 16:11:27 +0200 | [diff] [blame] | 81 | /* TT_CLIENT flags. |
| 82 | * Flags from 1 to 1 << 7 are sent on the wire, while flags from 1 << 8 to |
| 83 | * 1 << 15 are used for local computation only */ |
| 84 | enum tt_client_flags { |
| 85 | TT_CLIENT_DEL = 1 << 0, |
| 86 | TT_CLIENT_ROAM = 1 << 1, |
Antonio Quartulli | bc27908 | 2011-07-07 15:35:35 +0200 | [diff] [blame] | 87 | TT_CLIENT_WIFI = 1 << 2, |
Antonio Quartulli | 058d0e2 | 2011-07-07 01:40:58 +0200 | [diff] [blame] | 88 | TT_CLIENT_NOPURGE = 1 << 8, |
| 89 | TT_CLIENT_NEW = 1 << 9, |
| 90 | TT_CLIENT_PENDING = 1 << 10 |
Antonio Quartulli | a73105b | 2011-04-27 14:27:44 +0200 | [diff] [blame] | 91 | }; |
| 92 | |
Simon Wunderlich | 2372138 | 2012-01-22 20:00:19 +0100 | [diff] [blame] | 93 | /* claim frame types for the bridge loop avoidance */ |
| 94 | enum bla_claimframe { |
| 95 | CLAIM_TYPE_ADD = 0x00, |
| 96 | CLAIM_TYPE_DEL = 0x01, |
| 97 | CLAIM_TYPE_ANNOUNCE = 0x02, |
| 98 | CLAIM_TYPE_REQUEST = 0x03 |
| 99 | }; |
| 100 | |
| 101 | /* the destination hardware field in the ARP frame is used to |
| 102 | * transport the claim type and the group id |
| 103 | */ |
| 104 | struct bla_claim_dst { |
| 105 | uint8_t magic[3]; /* FF:43:05 */ |
| 106 | uint8_t type; /* bla_claimframe */ |
| 107 | uint16_t group; /* group id */ |
| 108 | } __packed; |
| 109 | |
Sven Eckelmann | 76543d1 | 2011-11-20 15:47:38 +0100 | [diff] [blame] | 110 | struct batman_header { |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 111 | uint8_t packet_type; |
| 112 | uint8_t version; /* batman version field */ |
Antonio Quartulli | 3b27ffb | 2011-05-28 14:51:06 +0200 | [diff] [blame] | 113 | uint8_t ttl; |
Sven Eckelmann | 76543d1 | 2011-11-20 15:47:38 +0100 | [diff] [blame] | 114 | } __packed; |
| 115 | |
| 116 | struct batman_ogm_packet { |
| 117 | struct batman_header header; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 118 | uint8_t flags; /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */ |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 119 | uint32_t seqno; |
Antonio Quartulli | c1faead | 2012-01-30 20:59:17 +0100 | [diff] [blame] | 120 | uint8_t orig[ETH_ALEN]; |
| 121 | uint8_t prev_sender[ETH_ALEN]; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 122 | uint8_t gw_flags; /* flags related to gateway class */ |
Antonio Quartulli | 3b27ffb | 2011-05-28 14:51:06 +0200 | [diff] [blame] | 123 | uint8_t tq; |
Antonio Quartulli | a73105b | 2011-04-27 14:27:44 +0200 | [diff] [blame] | 124 | uint8_t tt_num_changes; |
| 125 | uint8_t ttvn; /* translation table version number */ |
| 126 | uint16_t tt_crc; |
Sven Eckelmann | aa0adb1 | 2011-01-15 14:39:43 +0000 | [diff] [blame] | 127 | } __packed; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 128 | |
Marek Lindner | b6da4bf | 2011-07-29 17:31:50 +0200 | [diff] [blame] | 129 | #define BATMAN_OGM_LEN sizeof(struct batman_ogm_packet) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 130 | |
| 131 | struct icmp_packet { |
Sven Eckelmann | 76543d1 | 2011-11-20 15:47:38 +0100 | [diff] [blame] | 132 | struct batman_header header; |
Antonio Quartulli | 3b27ffb | 2011-05-28 14:51:06 +0200 | [diff] [blame] | 133 | uint8_t msg_type; /* see ICMP message types above */ |
Antonio Quartulli | c1faead | 2012-01-30 20:59:17 +0100 | [diff] [blame] | 134 | uint8_t dst[ETH_ALEN]; |
| 135 | uint8_t orig[ETH_ALEN]; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 136 | uint16_t seqno; |
| 137 | uint8_t uid; |
Antonio Quartulli | 3b27ffb | 2011-05-28 14:51:06 +0200 | [diff] [blame] | 138 | uint8_t reserved; |
Sven Eckelmann | aa0adb1 | 2011-01-15 14:39:43 +0000 | [diff] [blame] | 139 | } __packed; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 140 | |
| 141 | #define BAT_RR_LEN 16 |
| 142 | |
| 143 | /* icmp_packet_rr must start with all fields from imcp_packet |
| 144 | * as this is assumed by code that handles ICMP packets */ |
| 145 | struct icmp_packet_rr { |
Sven Eckelmann | 76543d1 | 2011-11-20 15:47:38 +0100 | [diff] [blame] | 146 | struct batman_header header; |
Antonio Quartulli | 3b27ffb | 2011-05-28 14:51:06 +0200 | [diff] [blame] | 147 | uint8_t msg_type; /* see ICMP message types above */ |
Antonio Quartulli | c1faead | 2012-01-30 20:59:17 +0100 | [diff] [blame] | 148 | uint8_t dst[ETH_ALEN]; |
| 149 | uint8_t orig[ETH_ALEN]; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 150 | uint16_t seqno; |
| 151 | uint8_t uid; |
| 152 | uint8_t rr_cur; |
| 153 | uint8_t rr[BAT_RR_LEN][ETH_ALEN]; |
Sven Eckelmann | aa0adb1 | 2011-01-15 14:39:43 +0000 | [diff] [blame] | 154 | } __packed; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 155 | |
| 156 | struct unicast_packet { |
Sven Eckelmann | 76543d1 | 2011-11-20 15:47:38 +0100 | [diff] [blame] | 157 | struct batman_header header; |
Antonio Quartulli | a73105b | 2011-04-27 14:27:44 +0200 | [diff] [blame] | 158 | uint8_t ttvn; /* destination translation table version number */ |
Antonio Quartulli | c1faead | 2012-01-30 20:59:17 +0100 | [diff] [blame] | 159 | uint8_t dest[ETH_ALEN]; |
Sven Eckelmann | aa0adb1 | 2011-01-15 14:39:43 +0000 | [diff] [blame] | 160 | } __packed; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 161 | |
| 162 | struct unicast_frag_packet { |
Sven Eckelmann | 76543d1 | 2011-11-20 15:47:38 +0100 | [diff] [blame] | 163 | struct batman_header header; |
Antonio Quartulli | a73105b | 2011-04-27 14:27:44 +0200 | [diff] [blame] | 164 | uint8_t ttvn; /* destination translation table version number */ |
Antonio Quartulli | c1faead | 2012-01-30 20:59:17 +0100 | [diff] [blame] | 165 | uint8_t dest[ETH_ALEN]; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 166 | uint8_t flags; |
Antonio Quartulli | 3b27ffb | 2011-05-28 14:51:06 +0200 | [diff] [blame] | 167 | uint8_t align; |
Antonio Quartulli | c1faead | 2012-01-30 20:59:17 +0100 | [diff] [blame] | 168 | uint8_t orig[ETH_ALEN]; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 169 | uint16_t seqno; |
Sven Eckelmann | aa0adb1 | 2011-01-15 14:39:43 +0000 | [diff] [blame] | 170 | } __packed; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 171 | |
| 172 | struct bcast_packet { |
Sven Eckelmann | 76543d1 | 2011-11-20 15:47:38 +0100 | [diff] [blame] | 173 | struct batman_header header; |
Antonio Quartulli | 3b27ffb | 2011-05-28 14:51:06 +0200 | [diff] [blame] | 174 | uint8_t reserved; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 175 | uint32_t seqno; |
Antonio Quartulli | c1faead | 2012-01-30 20:59:17 +0100 | [diff] [blame] | 176 | uint8_t orig[ETH_ALEN]; |
Sven Eckelmann | aa0adb1 | 2011-01-15 14:39:43 +0000 | [diff] [blame] | 177 | } __packed; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 178 | |
| 179 | struct vis_packet { |
Sven Eckelmann | 76543d1 | 2011-11-20 15:47:38 +0100 | [diff] [blame] | 180 | struct batman_header header; |
Antonio Quartulli | 3b27ffb | 2011-05-28 14:51:06 +0200 | [diff] [blame] | 181 | uint8_t vis_type; /* which type of vis-participant sent this? */ |
| 182 | uint32_t seqno; /* sequence number */ |
| 183 | uint8_t entries; /* number of entries behind this struct */ |
| 184 | uint8_t reserved; |
Antonio Quartulli | c1faead | 2012-01-30 20:59:17 +0100 | [diff] [blame] | 185 | uint8_t vis_orig[ETH_ALEN]; /* originator reporting its neighbors */ |
| 186 | uint8_t target_orig[ETH_ALEN]; /* who should receive this packet */ |
| 187 | uint8_t sender_orig[ETH_ALEN]; /* who sent or forwarded this packet */ |
Sven Eckelmann | aa0adb1 | 2011-01-15 14:39:43 +0000 | [diff] [blame] | 188 | } __packed; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 189 | |
Antonio Quartulli | a73105b | 2011-04-27 14:27:44 +0200 | [diff] [blame] | 190 | struct tt_query_packet { |
Sven Eckelmann | 76543d1 | 2011-11-20 15:47:38 +0100 | [diff] [blame] | 191 | struct batman_header header; |
Antonio Quartulli | a73105b | 2011-04-27 14:27:44 +0200 | [diff] [blame] | 192 | /* the flag field is a combination of: |
| 193 | * - TT_REQUEST or TT_RESPONSE |
| 194 | * - TT_FULL_TABLE */ |
| 195 | uint8_t flags; |
| 196 | uint8_t dst[ETH_ALEN]; |
| 197 | uint8_t src[ETH_ALEN]; |
| 198 | /* the ttvn field is: |
| 199 | * if TT_REQUEST: ttvn that triggered the |
| 200 | * request |
| 201 | * if TT_RESPONSE: new ttvn for the src |
| 202 | * orig_node */ |
| 203 | uint8_t ttvn; |
| 204 | /* tt_data field is: |
| 205 | * if TT_REQUEST: crc associated with the |
| 206 | * ttvn |
| 207 | * if TT_RESPONSE: table_size */ |
| 208 | uint16_t tt_data; |
| 209 | } __packed; |
| 210 | |
Antonio Quartulli | cc47f66 | 2011-04-27 14:27:57 +0200 | [diff] [blame] | 211 | struct roam_adv_packet { |
Sven Eckelmann | 76543d1 | 2011-11-20 15:47:38 +0100 | [diff] [blame] | 212 | struct batman_header header; |
Antonio Quartulli | cc47f66 | 2011-04-27 14:27:57 +0200 | [diff] [blame] | 213 | uint8_t reserved; |
| 214 | uint8_t dst[ETH_ALEN]; |
| 215 | uint8_t src[ETH_ALEN]; |
| 216 | uint8_t client[ETH_ALEN]; |
| 217 | } __packed; |
| 218 | |
Antonio Quartulli | a73105b | 2011-04-27 14:27:44 +0200 | [diff] [blame] | 219 | struct tt_change { |
| 220 | uint8_t flags; |
| 221 | uint8_t addr[ETH_ALEN]; |
| 222 | } __packed; |
| 223 | |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 224 | #endif /* _NET_BATMAN_ADV_PACKET_H_ */ |