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9cfc7bd6 | 1 | /* Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: |
c6c8fea2 SE |
2 | * |
3 | * Marek Lindner, Simon Wunderlich | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or | |
6 | * modify it under the terms of version 2 of the GNU General Public | |
7 | * License as published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but | |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | * General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
17 | * 02110-1301, USA | |
c6c8fea2 SE |
18 | */ |
19 | ||
20 | #ifndef _NET_BATMAN_ADV_PACKET_H_ | |
21 | #define _NET_BATMAN_ADV_PACKET_H_ | |
22 | ||
7e071c79 | 23 | #define BATADV_ETH_P_BATMAN 0x4305 /* unofficial/not registered Ethertype */ |
c6c8fea2 | 24 | |
acd34afa SE |
25 | enum batadv_packettype { |
26 | BATADV_IV_OGM = 0x01, | |
27 | BATADV_ICMP = 0x02, | |
28 | BATADV_UNICAST = 0x03, | |
29 | BATADV_BCAST = 0x04, | |
30 | BATADV_VIS = 0x05, | |
31 | BATADV_UNICAST_FRAG = 0x06, | |
32 | BATADV_TT_QUERY = 0x07, | |
33 | BATADV_ROAM_ADV = 0x08, | |
e8958dbf | 34 | }; |
c6c8fea2 SE |
35 | |
36 | /* this file is included by batctl which needs these defines */ | |
7e071c79 | 37 | #define BATADV_COMPAT_VERSION 14 |
e8958dbf | 38 | |
acd34afa SE |
39 | enum batadv_iv_flags { |
40 | BATADV_NOT_BEST_NEXT_HOP = 1 << 3, | |
41 | BATADV_PRIMARIES_FIRST_HOP = 1 << 4, | |
42 | BATADV_VIS_SERVER = 1 << 5, | |
43 | BATADV_DIRECTLINK = 1 << 6, | |
e8958dbf | 44 | }; |
c6c8fea2 SE |
45 | |
46 | /* ICMP message types */ | |
acd34afa SE |
47 | enum batadv_icmp_packettype { |
48 | BATADV_ECHO_REPLY = 0, | |
49 | BATADV_DESTINATION_UNREACHABLE = 3, | |
50 | BATADV_ECHO_REQUEST = 8, | |
51 | BATADV_TTL_EXCEEDED = 11, | |
52 | BATADV_PARAMETER_PROBLEM = 12, | |
e8958dbf | 53 | }; |
c6c8fea2 SE |
54 | |
55 | /* vis defines */ | |
acd34afa SE |
56 | enum batadv_vis_packettype { |
57 | BATADV_VIS_TYPE_SERVER_SYNC = 0, | |
58 | BATADV_VIS_TYPE_CLIENT_UPDATE = 1, | |
e8958dbf | 59 | }; |
c6c8fea2 SE |
60 | |
61 | /* fragmentation defines */ | |
acd34afa SE |
62 | enum batadv_unicast_frag_flags { |
63 | BATADV_UNI_FRAG_HEAD = 1 << 0, | |
64 | BATADV_UNI_FRAG_LARGETAIL = 1 << 1, | |
e8958dbf | 65 | }; |
c6c8fea2 | 66 | |
a73105b8 | 67 | /* TT_QUERY subtypes */ |
7e071c79 | 68 | #define BATADV_TT_QUERY_TYPE_MASK 0x3 |
a73105b8 | 69 | |
acd34afa SE |
70 | enum batadv_tt_query_packettype { |
71 | BATADV_TT_REQUEST = 0, | |
72 | BATADV_TT_RESPONSE = 1, | |
a73105b8 AQ |
73 | }; |
74 | ||
75 | /* TT_QUERY flags */ | |
acd34afa SE |
76 | enum batadv_tt_query_flags { |
77 | BATADV_TT_FULL_TABLE = 1 << 2, | |
a73105b8 AQ |
78 | }; |
79 | ||
acd34afa | 80 | /* BATADV_TT_CLIENT flags. |
5fbc1598 | 81 | * Flags from 1 to 1 << 7 are sent on the wire, while flags from 1 << 8 to |
9cfc7bd6 SE |
82 | * 1 << 15 are used for local computation only |
83 | */ | |
acd34afa SE |
84 | enum batadv_tt_client_flags { |
85 | BATADV_TT_CLIENT_DEL = 1 << 0, | |
86 | BATADV_TT_CLIENT_ROAM = 1 << 1, | |
87 | BATADV_TT_CLIENT_WIFI = 1 << 2, | |
88 | BATADV_TT_CLIENT_NOPURGE = 1 << 8, | |
89 | BATADV_TT_CLIENT_NEW = 1 << 9, | |
90 | BATADV_TT_CLIENT_PENDING = 1 << 10, | |
a73105b8 AQ |
91 | }; |
92 | ||
23721387 | 93 | /* claim frame types for the bridge loop avoidance */ |
acd34afa SE |
94 | enum batadv_bla_claimframe { |
95 | BATADV_CLAIM_TYPE_ADD = 0x00, | |
96 | BATADV_CLAIM_TYPE_DEL = 0x01, | |
97 | BATADV_CLAIM_TYPE_ANNOUNCE = 0x02, | |
98 | BATADV_CLAIM_TYPE_REQUEST = 0x03, | |
23721387 SW |
99 | }; |
100 | ||
101 | /* the destination hardware field in the ARP frame is used to | |
102 | * transport the claim type and the group id | |
103 | */ | |
96412690 | 104 | struct batadv_bla_claim_dst { |
23721387 SW |
105 | uint8_t magic[3]; /* FF:43:05 */ |
106 | uint8_t type; /* bla_claimframe */ | |
3e2f1a1b | 107 | __be16 group; /* group id */ |
23721387 SW |
108 | } __packed; |
109 | ||
96412690 | 110 | struct batadv_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 | ||
96412690 SE |
116 | struct batadv_ogm_packet { |
117 | struct batadv_header header; | |
c6c8fea2 | 118 | uint8_t flags; /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */ |
e0f5211f | 119 | __be32 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 */ | |
16a70345 | 126 | __be16 tt_crc; |
aa0adb1a | 127 | } __packed; |
c6c8fea2 | 128 | |
96412690 | 129 | #define BATADV_OGM_HLEN sizeof(struct batadv_ogm_packet) |
c6c8fea2 | 130 | |
96412690 SE |
131 | struct batadv_icmp_packet { |
132 | struct batadv_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]; | |
3e2f1a1b | 136 | __be16 seqno; |
c6c8fea2 | 137 | uint8_t uid; |
3b27ffb0 | 138 | uint8_t reserved; |
aa0adb1a | 139 | } __packed; |
c6c8fea2 | 140 | |
7e071c79 | 141 | #define BATADV_RR_LEN 16 |
c6c8fea2 SE |
142 | |
143 | /* icmp_packet_rr must start with all fields from imcp_packet | |
9cfc7bd6 SE |
144 | * as this is assumed by code that handles ICMP packets |
145 | */ | |
96412690 SE |
146 | struct batadv_icmp_packet_rr { |
147 | struct batadv_header header; | |
3b27ffb0 | 148 | uint8_t msg_type; /* see ICMP message types above */ |
c1faead3 AQ |
149 | uint8_t dst[ETH_ALEN]; |
150 | uint8_t orig[ETH_ALEN]; | |
3e2f1a1b | 151 | __be16 seqno; |
c6c8fea2 SE |
152 | uint8_t uid; |
153 | uint8_t rr_cur; | |
7e071c79 | 154 | uint8_t rr[BATADV_RR_LEN][ETH_ALEN]; |
aa0adb1a | 155 | } __packed; |
c6c8fea2 | 156 | |
96412690 SE |
157 | struct batadv_unicast_packet { |
158 | struct batadv_header header; | |
a73105b8 | 159 | uint8_t ttvn; /* destination translation table version number */ |
c1faead3 | 160 | uint8_t dest[ETH_ALEN]; |
aa0adb1a | 161 | } __packed; |
c6c8fea2 | 162 | |
96412690 SE |
163 | struct batadv_unicast_frag_packet { |
164 | struct batadv_header header; | |
a73105b8 | 165 | uint8_t ttvn; /* destination translation table version number */ |
c1faead3 | 166 | uint8_t dest[ETH_ALEN]; |
c6c8fea2 | 167 | uint8_t flags; |
3b27ffb0 | 168 | uint8_t align; |
c1faead3 | 169 | uint8_t orig[ETH_ALEN]; |
3e2f1a1b | 170 | __be16 seqno; |
aa0adb1a | 171 | } __packed; |
c6c8fea2 | 172 | |
96412690 SE |
173 | struct batadv_bcast_packet { |
174 | struct batadv_header header; | |
3b27ffb0 | 175 | uint8_t reserved; |
3e2f1a1b | 176 | __be32 seqno; |
c1faead3 | 177 | uint8_t orig[ETH_ALEN]; |
aa0adb1a | 178 | } __packed; |
c6c8fea2 | 179 | |
96412690 SE |
180 | struct batadv_vis_packet { |
181 | struct batadv_header header; | |
c6c8fea2 | 182 | uint8_t vis_type; /* which type of vis-participant sent this? */ |
3e2f1a1b | 183 | __be32 seqno; /* sequence number */ |
3b27ffb0 AQ |
184 | uint8_t entries; /* number of entries behind this struct */ |
185 | uint8_t reserved; | |
c1faead3 AQ |
186 | uint8_t vis_orig[ETH_ALEN]; /* originator reporting its neighbors */ |
187 | uint8_t target_orig[ETH_ALEN]; /* who should receive this packet */ | |
188 | uint8_t sender_orig[ETH_ALEN]; /* who sent or forwarded this packet */ | |
aa0adb1a | 189 | } __packed; |
c6c8fea2 | 190 | |
96412690 SE |
191 | struct batadv_tt_query_packet { |
192 | struct batadv_header header; | |
a73105b8 AQ |
193 | /* the flag field is a combination of: |
194 | * - TT_REQUEST or TT_RESPONSE | |
9cfc7bd6 SE |
195 | * - TT_FULL_TABLE |
196 | */ | |
a73105b8 AQ |
197 | uint8_t flags; |
198 | uint8_t dst[ETH_ALEN]; | |
199 | uint8_t src[ETH_ALEN]; | |
200 | /* the ttvn field is: | |
201 | * if TT_REQUEST: ttvn that triggered the | |
202 | * request | |
203 | * if TT_RESPONSE: new ttvn for the src | |
9cfc7bd6 SE |
204 | * orig_node |
205 | */ | |
a73105b8 AQ |
206 | uint8_t ttvn; |
207 | /* tt_data field is: | |
208 | * if TT_REQUEST: crc associated with the | |
209 | * ttvn | |
9cfc7bd6 SE |
210 | * if TT_RESPONSE: table_size |
211 | */ | |
212 | __be16 tt_data; | |
a73105b8 AQ |
213 | } __packed; |
214 | ||
96412690 SE |
215 | struct batadv_roam_adv_packet { |
216 | struct batadv_header header; | |
cc47f66e AQ |
217 | uint8_t reserved; |
218 | uint8_t dst[ETH_ALEN]; | |
219 | uint8_t src[ETH_ALEN]; | |
220 | uint8_t client[ETH_ALEN]; | |
221 | } __packed; | |
222 | ||
96412690 | 223 | struct batadv_tt_change { |
a73105b8 AQ |
224 | uint8_t flags; |
225 | uint8_t addr[ETH_ALEN]; | |
226 | } __packed; | |
227 | ||
c6c8fea2 | 228 | #endif /* _NET_BATMAN_ADV_PACKET_H_ */ |