Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 1 | /* |
Sven Eckelmann | 64afe35 | 2011-01-27 10:38:15 +0100 | [diff] [blame] | 2 | * Copyright (C) 2007-2011 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 { |
| 28 | BAT_PACKET = 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, |
| 34 | BAT_TT_QUERY = 0x07 |
Sven Eckelmann | e8958db | 2011-06-04 11:26:00 +0200 | [diff] [blame] | 35 | }; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 36 | |
| 37 | /* this file is included by batctl which needs these defines */ |
Antonio Quartulli | 3b27ffb | 2011-05-28 14:51:06 +0200 | [diff] [blame] | 38 | #define COMPAT_VERSION 14 |
Sven Eckelmann | e8958db | 2011-06-04 11:26:00 +0200 | [diff] [blame] | 39 | |
| 40 | enum batman_flags { |
| 41 | PRIMARIES_FIRST_HOP = 1 << 4, |
| 42 | VIS_SERVER = 1 << 5, |
| 43 | DIRECTLINK = 1 << 6 |
| 44 | }; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 45 | |
| 46 | /* ICMP message types */ |
Sven Eckelmann | e8958db | 2011-06-04 11:26:00 +0200 | [diff] [blame] | 47 | enum icmp_packettype { |
| 48 | ECHO_REPLY = 0, |
| 49 | DESTINATION_UNREACHABLE = 3, |
| 50 | ECHO_REQUEST = 8, |
| 51 | TTL_EXCEEDED = 11, |
| 52 | PARAMETER_PROBLEM = 12 |
| 53 | }; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 54 | |
| 55 | /* vis defines */ |
Sven Eckelmann | e8958db | 2011-06-04 11:26:00 +0200 | [diff] [blame] | 56 | enum vis_packettype { |
| 57 | VIS_TYPE_SERVER_SYNC = 0, |
| 58 | VIS_TYPE_CLIENT_UPDATE = 1 |
| 59 | }; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 60 | |
| 61 | /* fragmentation defines */ |
Sven Eckelmann | e8958db | 2011-06-04 11:26:00 +0200 | [diff] [blame] | 62 | enum unicast_frag_flags { |
| 63 | UNI_FRAG_HEAD = 1 << 0, |
| 64 | UNI_FRAG_LARGETAIL = 1 << 1 |
| 65 | }; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 66 | |
Antonio Quartulli | a73105b | 2011-04-27 14:27:44 +0200 | [diff] [blame^] | 67 | /* TT_QUERY subtypes */ |
| 68 | #define TT_QUERY_TYPE_MASK 0x3 |
| 69 | |
| 70 | enum tt_query_packettype { |
| 71 | TT_REQUEST = 0, |
| 72 | TT_RESPONSE = 1 |
| 73 | }; |
| 74 | |
| 75 | /* TT_QUERY flags */ |
| 76 | enum tt_query_flags { |
| 77 | TT_FULL_TABLE = 1 << 2 |
| 78 | }; |
| 79 | |
| 80 | /* TT_CHANGE flags */ |
| 81 | enum tt_change_flags { |
| 82 | TT_CHANGE_DEL = 0x01, |
| 83 | TT_CLIENT_ROAM = 0x02 |
| 84 | }; |
| 85 | |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 86 | struct batman_packet { |
| 87 | uint8_t packet_type; |
| 88 | uint8_t version; /* batman version field */ |
Antonio Quartulli | 3b27ffb | 2011-05-28 14:51:06 +0200 | [diff] [blame] | 89 | uint8_t ttl; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 90 | uint8_t flags; /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */ |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 91 | uint32_t seqno; |
| 92 | uint8_t orig[6]; |
| 93 | uint8_t prev_sender[6]; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 94 | uint8_t gw_flags; /* flags related to gateway class */ |
Antonio Quartulli | 3b27ffb | 2011-05-28 14:51:06 +0200 | [diff] [blame] | 95 | uint8_t tq; |
Antonio Quartulli | a73105b | 2011-04-27 14:27:44 +0200 | [diff] [blame^] | 96 | uint8_t tt_num_changes; |
| 97 | uint8_t ttvn; /* translation table version number */ |
| 98 | uint16_t tt_crc; |
Sven Eckelmann | aa0adb1 | 2011-01-15 14:39:43 +0000 | [diff] [blame] | 99 | } __packed; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 100 | |
| 101 | #define BAT_PACKET_LEN sizeof(struct batman_packet) |
| 102 | |
| 103 | struct icmp_packet { |
| 104 | uint8_t packet_type; |
| 105 | uint8_t version; /* batman version field */ |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 106 | uint8_t ttl; |
Antonio Quartulli | 3b27ffb | 2011-05-28 14:51:06 +0200 | [diff] [blame] | 107 | uint8_t msg_type; /* see ICMP message types above */ |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 108 | uint8_t dst[6]; |
| 109 | uint8_t orig[6]; |
| 110 | uint16_t seqno; |
| 111 | uint8_t uid; |
Antonio Quartulli | 3b27ffb | 2011-05-28 14:51:06 +0200 | [diff] [blame] | 112 | uint8_t reserved; |
Sven Eckelmann | aa0adb1 | 2011-01-15 14:39:43 +0000 | [diff] [blame] | 113 | } __packed; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 114 | |
| 115 | #define BAT_RR_LEN 16 |
| 116 | |
| 117 | /* icmp_packet_rr must start with all fields from imcp_packet |
| 118 | * as this is assumed by code that handles ICMP packets */ |
| 119 | struct icmp_packet_rr { |
| 120 | uint8_t packet_type; |
| 121 | uint8_t version; /* batman version field */ |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 122 | uint8_t ttl; |
Antonio Quartulli | 3b27ffb | 2011-05-28 14:51:06 +0200 | [diff] [blame] | 123 | uint8_t msg_type; /* see ICMP message types above */ |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 124 | uint8_t dst[6]; |
| 125 | uint8_t orig[6]; |
| 126 | uint16_t seqno; |
| 127 | uint8_t uid; |
| 128 | uint8_t rr_cur; |
| 129 | uint8_t rr[BAT_RR_LEN][ETH_ALEN]; |
Sven Eckelmann | aa0adb1 | 2011-01-15 14:39:43 +0000 | [diff] [blame] | 130 | } __packed; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 131 | |
| 132 | struct unicast_packet { |
| 133 | uint8_t packet_type; |
| 134 | uint8_t version; /* batman version field */ |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 135 | uint8_t ttl; |
Antonio Quartulli | a73105b | 2011-04-27 14:27:44 +0200 | [diff] [blame^] | 136 | uint8_t ttvn; /* destination translation table version number */ |
Antonio Quartulli | 3b27ffb | 2011-05-28 14:51:06 +0200 | [diff] [blame] | 137 | uint8_t dest[6]; |
Sven Eckelmann | aa0adb1 | 2011-01-15 14:39:43 +0000 | [diff] [blame] | 138 | } __packed; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 139 | |
| 140 | struct unicast_frag_packet { |
| 141 | uint8_t packet_type; |
| 142 | uint8_t version; /* batman version field */ |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 143 | uint8_t ttl; |
Antonio Quartulli | a73105b | 2011-04-27 14:27:44 +0200 | [diff] [blame^] | 144 | uint8_t ttvn; /* destination translation table version number */ |
Antonio Quartulli | 3b27ffb | 2011-05-28 14:51:06 +0200 | [diff] [blame] | 145 | uint8_t dest[6]; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 146 | uint8_t flags; |
Antonio Quartulli | 3b27ffb | 2011-05-28 14:51:06 +0200 | [diff] [blame] | 147 | uint8_t align; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 148 | uint8_t orig[6]; |
| 149 | uint16_t seqno; |
Sven Eckelmann | aa0adb1 | 2011-01-15 14:39:43 +0000 | [diff] [blame] | 150 | } __packed; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 151 | |
| 152 | struct bcast_packet { |
| 153 | uint8_t packet_type; |
| 154 | uint8_t version; /* batman version field */ |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 155 | uint8_t ttl; |
Antonio Quartulli | 3b27ffb | 2011-05-28 14:51:06 +0200 | [diff] [blame] | 156 | uint8_t reserved; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 157 | uint32_t seqno; |
Antonio Quartulli | 3b27ffb | 2011-05-28 14:51:06 +0200 | [diff] [blame] | 158 | uint8_t orig[6]; |
Sven Eckelmann | aa0adb1 | 2011-01-15 14:39:43 +0000 | [diff] [blame] | 159 | } __packed; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 160 | |
| 161 | struct vis_packet { |
| 162 | uint8_t packet_type; |
| 163 | uint8_t version; /* batman version field */ |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 164 | uint8_t ttl; /* TTL */ |
Antonio Quartulli | 3b27ffb | 2011-05-28 14:51:06 +0200 | [diff] [blame] | 165 | uint8_t vis_type; /* which type of vis-participant sent this? */ |
| 166 | uint32_t seqno; /* sequence number */ |
| 167 | uint8_t entries; /* number of entries behind this struct */ |
| 168 | uint8_t reserved; |
Sven Eckelmann | 6e215fd | 2011-05-08 12:45:45 +0200 | [diff] [blame] | 169 | uint8_t vis_orig[6]; /* originator that announces its neighbors */ |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 170 | uint8_t target_orig[6]; /* who should receive this packet */ |
| 171 | uint8_t sender_orig[6]; /* who sent or rebroadcasted this packet */ |
Sven Eckelmann | aa0adb1 | 2011-01-15 14:39:43 +0000 | [diff] [blame] | 172 | } __packed; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 173 | |
Antonio Quartulli | a73105b | 2011-04-27 14:27:44 +0200 | [diff] [blame^] | 174 | struct tt_query_packet { |
| 175 | uint8_t packet_type; |
| 176 | uint8_t version; /* batman version field */ |
| 177 | uint8_t ttl; |
| 178 | /* the flag field is a combination of: |
| 179 | * - TT_REQUEST or TT_RESPONSE |
| 180 | * - TT_FULL_TABLE */ |
| 181 | uint8_t flags; |
| 182 | uint8_t dst[ETH_ALEN]; |
| 183 | uint8_t src[ETH_ALEN]; |
| 184 | /* the ttvn field is: |
| 185 | * if TT_REQUEST: ttvn that triggered the |
| 186 | * request |
| 187 | * if TT_RESPONSE: new ttvn for the src |
| 188 | * orig_node */ |
| 189 | uint8_t ttvn; |
| 190 | /* tt_data field is: |
| 191 | * if TT_REQUEST: crc associated with the |
| 192 | * ttvn |
| 193 | * if TT_RESPONSE: table_size */ |
| 194 | uint16_t tt_data; |
| 195 | } __packed; |
| 196 | |
| 197 | struct tt_change { |
| 198 | uint8_t flags; |
| 199 | uint8_t addr[ETH_ALEN]; |
| 200 | } __packed; |
| 201 | |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 202 | #endif /* _NET_BATMAN_ADV_PACKET_H_ */ |