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c6c8fea2 | 1 | /* |
567db7b0 | 2 | * Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: |
c6c8fea2 SE |
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 | ||
e8958dbf | 27 | enum bat_packettype { |
b6da4bf5 ML |
28 | BAT_OGM = 0x01, |
29 | BAT_ICMP = 0x02, | |
30 | BAT_UNICAST = 0x03, | |
31 | BAT_BCAST = 0x04, | |
32 | BAT_VIS = 0x05, | |
a73105b8 | 33 | BAT_UNICAST_FRAG = 0x06, |
b6da4bf5 ML |
34 | BAT_TT_QUERY = 0x07, |
35 | BAT_ROAM_ADV = 0x08 | |
e8958dbf | 36 | }; |
c6c8fea2 SE |
37 | |
38 | /* this file is included by batctl which needs these defines */ | |
3b27ffb0 | 39 | #define COMPAT_VERSION 14 |
e8958dbf SE |
40 | |
41 | enum batman_flags { | |
42 | PRIMARIES_FIRST_HOP = 1 << 4, | |
43 | VIS_SERVER = 1 << 5, | |
44 | DIRECTLINK = 1 << 6 | |
45 | }; | |
c6c8fea2 SE |
46 | |
47 | /* ICMP message types */ | |
e8958dbf SE |
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 | }; | |
c6c8fea2 SE |
55 | |
56 | /* vis defines */ | |
e8958dbf SE |
57 | enum vis_packettype { |
58 | VIS_TYPE_SERVER_SYNC = 0, | |
59 | VIS_TYPE_CLIENT_UPDATE = 1 | |
60 | }; | |
c6c8fea2 SE |
61 | |
62 | /* fragmentation defines */ | |
e8958dbf SE |
63 | enum unicast_frag_flags { |
64 | UNI_FRAG_HEAD = 1 << 0, | |
65 | UNI_FRAG_LARGETAIL = 1 << 1 | |
66 | }; | |
c6c8fea2 | 67 | |
a73105b8 AQ |
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 | ||
5fbc1598 AQ |
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, | |
bc279080 | 87 | TT_CLIENT_WIFI = 1 << 2, |
058d0e26 AQ |
88 | TT_CLIENT_NOPURGE = 1 << 8, |
89 | TT_CLIENT_NEW = 1 << 9, | |
90 | TT_CLIENT_PENDING = 1 << 10 | |
a73105b8 AQ |
91 | }; |
92 | ||
23721387 SW |
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 | ||
76543d14 | 110 | struct batman_header { |
c6c8fea2 SE |
111 | uint8_t packet_type; |
112 | uint8_t version; /* batman version field */ | |
3b27ffb0 | 113 | uint8_t ttl; |
76543d14 SE |
114 | } __packed; |
115 | ||
116 | struct batman_ogm_packet { | |
117 | struct batman_header header; | |
c6c8fea2 | 118 | uint8_t flags; /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */ |
c6c8fea2 | 119 | uint32_t seqno; |
c1faead3 AQ |
120 | uint8_t orig[ETH_ALEN]; |
121 | uint8_t prev_sender[ETH_ALEN]; | |
c6c8fea2 | 122 | uint8_t gw_flags; /* flags related to gateway class */ |
3b27ffb0 | 123 | uint8_t tq; |
a73105b8 AQ |
124 | uint8_t tt_num_changes; |
125 | uint8_t ttvn; /* translation table version number */ | |
126 | uint16_t tt_crc; | |
aa0adb1a | 127 | } __packed; |
c6c8fea2 | 128 | |
76e3d7fc | 129 | #define BATMAN_OGM_HLEN sizeof(struct batman_ogm_packet) |
c6c8fea2 SE |
130 | |
131 | struct icmp_packet { | |
76543d14 | 132 | struct batman_header header; |
3b27ffb0 | 133 | uint8_t msg_type; /* see ICMP message types above */ |
c1faead3 AQ |
134 | uint8_t dst[ETH_ALEN]; |
135 | uint8_t orig[ETH_ALEN]; | |
c6c8fea2 SE |
136 | uint16_t seqno; |
137 | uint8_t uid; | |
3b27ffb0 | 138 | uint8_t reserved; |
aa0adb1a | 139 | } __packed; |
c6c8fea2 SE |
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 { | |
76543d14 | 146 | struct batman_header header; |
3b27ffb0 | 147 | uint8_t msg_type; /* see ICMP message types above */ |
c1faead3 AQ |
148 | uint8_t dst[ETH_ALEN]; |
149 | uint8_t orig[ETH_ALEN]; | |
c6c8fea2 SE |
150 | uint16_t seqno; |
151 | uint8_t uid; | |
152 | uint8_t rr_cur; | |
153 | uint8_t rr[BAT_RR_LEN][ETH_ALEN]; | |
aa0adb1a | 154 | } __packed; |
c6c8fea2 SE |
155 | |
156 | struct unicast_packet { | |
76543d14 | 157 | struct batman_header header; |
a73105b8 | 158 | uint8_t ttvn; /* destination translation table version number */ |
c1faead3 | 159 | uint8_t dest[ETH_ALEN]; |
aa0adb1a | 160 | } __packed; |
c6c8fea2 SE |
161 | |
162 | struct unicast_frag_packet { | |
76543d14 | 163 | struct batman_header header; |
a73105b8 | 164 | uint8_t ttvn; /* destination translation table version number */ |
c1faead3 | 165 | uint8_t dest[ETH_ALEN]; |
c6c8fea2 | 166 | uint8_t flags; |
3b27ffb0 | 167 | uint8_t align; |
c1faead3 | 168 | uint8_t orig[ETH_ALEN]; |
c6c8fea2 | 169 | uint16_t seqno; |
aa0adb1a | 170 | } __packed; |
c6c8fea2 SE |
171 | |
172 | struct bcast_packet { | |
76543d14 | 173 | struct batman_header header; |
3b27ffb0 | 174 | uint8_t reserved; |
c6c8fea2 | 175 | uint32_t seqno; |
c1faead3 | 176 | uint8_t orig[ETH_ALEN]; |
aa0adb1a | 177 | } __packed; |
c6c8fea2 SE |
178 | |
179 | struct vis_packet { | |
76543d14 | 180 | struct batman_header header; |
c6c8fea2 | 181 | uint8_t vis_type; /* which type of vis-participant sent this? */ |
c6c8fea2 | 182 | uint32_t seqno; /* sequence number */ |
3b27ffb0 AQ |
183 | uint8_t entries; /* number of entries behind this struct */ |
184 | uint8_t reserved; | |
c1faead3 AQ |
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 */ | |
aa0adb1a | 188 | } __packed; |
c6c8fea2 | 189 | |
a73105b8 | 190 | struct tt_query_packet { |
76543d14 | 191 | struct batman_header header; |
a73105b8 AQ |
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 | ||
cc47f66e | 211 | struct roam_adv_packet { |
76543d14 | 212 | struct batman_header header; |
cc47f66e AQ |
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 | ||
a73105b8 AQ |
219 | struct tt_change { |
220 | uint8_t flags; | |
221 | uint8_t addr[ETH_ALEN]; | |
222 | } __packed; | |
223 | ||
c6c8fea2 | 224 | #endif /* _NET_BATMAN_ADV_PACKET_H_ */ |