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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 | 39 | enum batadv_iv_flags { |
8de47de5 SE |
40 | BATADV_NOT_BEST_NEXT_HOP = BIT(3), |
41 | BATADV_PRIMARIES_FIRST_HOP = BIT(4), | |
42 | BATADV_VIS_SERVER = BIT(5), | |
43 | BATADV_DIRECTLINK = BIT(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 | 62 | enum batadv_unicast_frag_flags { |
8de47de5 SE |
63 | BATADV_UNI_FRAG_HEAD = BIT(0), |
64 | BATADV_UNI_FRAG_LARGETAIL = BIT(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 | 76 | enum batadv_tt_query_flags { |
8de47de5 | 77 | BATADV_TT_FULL_TABLE = BIT(2), |
a73105b8 AQ |
78 | }; |
79 | ||
acd34afa | 80 | /* BATADV_TT_CLIENT flags. |
8de47de5 SE |
81 | * Flags from BIT(0) to BIT(7) are sent on the wire, while flags from BIT(8) to |
82 | * BIT(15) are used for local computation only | |
9cfc7bd6 | 83 | */ |
acd34afa | 84 | enum batadv_tt_client_flags { |
8de47de5 SE |
85 | BATADV_TT_CLIENT_DEL = BIT(0), |
86 | BATADV_TT_CLIENT_ROAM = BIT(1), | |
87 | BATADV_TT_CLIENT_WIFI = BIT(2), | |
30cfd02b | 88 | BATADV_TT_CLIENT_TEMP = BIT(3), |
8de47de5 SE |
89 | BATADV_TT_CLIENT_NOPURGE = BIT(8), |
90 | BATADV_TT_CLIENT_NEW = BIT(9), | |
91 | BATADV_TT_CLIENT_PENDING = BIT(10), | |
a73105b8 AQ |
92 | }; |
93 | ||
23721387 | 94 | /* claim frame types for the bridge loop avoidance */ |
acd34afa | 95 | enum batadv_bla_claimframe { |
3eb8773e SW |
96 | BATADV_CLAIM_TYPE_CLAIM = 0x00, |
97 | BATADV_CLAIM_TYPE_UNCLAIM = 0x01, | |
acd34afa SE |
98 | BATADV_CLAIM_TYPE_ANNOUNCE = 0x02, |
99 | BATADV_CLAIM_TYPE_REQUEST = 0x03, | |
23721387 SW |
100 | }; |
101 | ||
102 | /* the destination hardware field in the ARP frame is used to | |
103 | * transport the claim type and the group id | |
104 | */ | |
96412690 | 105 | struct batadv_bla_claim_dst { |
23721387 SW |
106 | uint8_t magic[3]; /* FF:43:05 */ |
107 | uint8_t type; /* bla_claimframe */ | |
3e2f1a1b | 108 | __be16 group; /* group id */ |
f6c57a46 | 109 | }; |
23721387 | 110 | |
96412690 | 111 | struct batadv_header { |
c6c8fea2 SE |
112 | uint8_t packet_type; |
113 | uint8_t version; /* batman version field */ | |
3b27ffb0 | 114 | uint8_t ttl; |
f6c57a46 SE |
115 | /* the parent struct has to add a byte after the header to make |
116 | * everything 4 bytes aligned again | |
117 | */ | |
118 | }; | |
76543d14 | 119 | |
96412690 SE |
120 | struct batadv_ogm_packet { |
121 | struct batadv_header header; | |
c6c8fea2 | 122 | uint8_t flags; /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */ |
e0f5211f | 123 | __be32 seqno; |
c1faead3 AQ |
124 | uint8_t orig[ETH_ALEN]; |
125 | uint8_t prev_sender[ETH_ALEN]; | |
c6c8fea2 | 126 | uint8_t gw_flags; /* flags related to gateway class */ |
3b27ffb0 | 127 | uint8_t tq; |
a73105b8 AQ |
128 | uint8_t tt_num_changes; |
129 | uint8_t ttvn; /* translation table version number */ | |
16a70345 | 130 | __be16 tt_crc; |
aa0adb1a | 131 | } __packed; |
c6c8fea2 | 132 | |
96412690 | 133 | #define BATADV_OGM_HLEN sizeof(struct batadv_ogm_packet) |
c6c8fea2 | 134 | |
96412690 SE |
135 | struct batadv_icmp_packet { |
136 | struct batadv_header header; | |
3b27ffb0 | 137 | uint8_t msg_type; /* see ICMP message types above */ |
c1faead3 AQ |
138 | uint8_t dst[ETH_ALEN]; |
139 | uint8_t orig[ETH_ALEN]; | |
3e2f1a1b | 140 | __be16 seqno; |
c6c8fea2 | 141 | uint8_t uid; |
3b27ffb0 | 142 | uint8_t reserved; |
f6c57a46 | 143 | }; |
c6c8fea2 | 144 | |
7e071c79 | 145 | #define BATADV_RR_LEN 16 |
c6c8fea2 SE |
146 | |
147 | /* icmp_packet_rr must start with all fields from imcp_packet | |
9cfc7bd6 SE |
148 | * as this is assumed by code that handles ICMP packets |
149 | */ | |
96412690 SE |
150 | struct batadv_icmp_packet_rr { |
151 | struct batadv_header header; | |
3b27ffb0 | 152 | uint8_t msg_type; /* see ICMP message types above */ |
c1faead3 AQ |
153 | uint8_t dst[ETH_ALEN]; |
154 | uint8_t orig[ETH_ALEN]; | |
3e2f1a1b | 155 | __be16 seqno; |
c6c8fea2 SE |
156 | uint8_t uid; |
157 | uint8_t rr_cur; | |
7e071c79 | 158 | uint8_t rr[BATADV_RR_LEN][ETH_ALEN]; |
f6c57a46 | 159 | }; |
c6c8fea2 | 160 | |
96412690 SE |
161 | struct batadv_unicast_packet { |
162 | struct batadv_header header; | |
a73105b8 | 163 | uint8_t ttvn; /* destination translation table version number */ |
c1faead3 | 164 | uint8_t dest[ETH_ALEN]; |
f6c57a46 SE |
165 | /* "4 bytes boundary + 2 bytes" long to make the payload after the |
166 | * following ethernet header again 4 bytes boundary aligned | |
167 | */ | |
168 | }; | |
c6c8fea2 | 169 | |
96412690 SE |
170 | struct batadv_unicast_frag_packet { |
171 | struct batadv_header header; | |
a73105b8 | 172 | uint8_t ttvn; /* destination translation table version number */ |
c1faead3 | 173 | uint8_t dest[ETH_ALEN]; |
c6c8fea2 | 174 | uint8_t flags; |
3b27ffb0 | 175 | uint8_t align; |
c1faead3 | 176 | uint8_t orig[ETH_ALEN]; |
3e2f1a1b | 177 | __be16 seqno; |
aa0adb1a | 178 | } __packed; |
c6c8fea2 | 179 | |
96412690 SE |
180 | struct batadv_bcast_packet { |
181 | struct batadv_header header; | |
3b27ffb0 | 182 | uint8_t reserved; |
3e2f1a1b | 183 | __be32 seqno; |
c1faead3 | 184 | uint8_t orig[ETH_ALEN]; |
f6c57a46 SE |
185 | /* "4 bytes boundary + 2 bytes" long to make the payload after the |
186 | * following ethernet header again 4 bytes boundary aligned | |
187 | */ | |
aa0adb1a | 188 | } __packed; |
c6c8fea2 | 189 | |
96412690 SE |
190 | struct batadv_vis_packet { |
191 | struct batadv_header header; | |
c6c8fea2 | 192 | uint8_t vis_type; /* which type of vis-participant sent this? */ |
3e2f1a1b | 193 | __be32 seqno; /* sequence number */ |
3b27ffb0 AQ |
194 | uint8_t entries; /* number of entries behind this struct */ |
195 | uint8_t reserved; | |
c1faead3 AQ |
196 | uint8_t vis_orig[ETH_ALEN]; /* originator reporting its neighbors */ |
197 | uint8_t target_orig[ETH_ALEN]; /* who should receive this packet */ | |
198 | uint8_t sender_orig[ETH_ALEN]; /* who sent or forwarded this packet */ | |
f6c57a46 | 199 | }; |
c6c8fea2 | 200 | |
96412690 SE |
201 | struct batadv_tt_query_packet { |
202 | struct batadv_header header; | |
a73105b8 AQ |
203 | /* the flag field is a combination of: |
204 | * - TT_REQUEST or TT_RESPONSE | |
9cfc7bd6 SE |
205 | * - TT_FULL_TABLE |
206 | */ | |
a73105b8 AQ |
207 | uint8_t flags; |
208 | uint8_t dst[ETH_ALEN]; | |
209 | uint8_t src[ETH_ALEN]; | |
210 | /* the ttvn field is: | |
211 | * if TT_REQUEST: ttvn that triggered the | |
212 | * request | |
213 | * if TT_RESPONSE: new ttvn for the src | |
9cfc7bd6 SE |
214 | * orig_node |
215 | */ | |
a73105b8 AQ |
216 | uint8_t ttvn; |
217 | /* tt_data field is: | |
218 | * if TT_REQUEST: crc associated with the | |
219 | * ttvn | |
9cfc7bd6 SE |
220 | * if TT_RESPONSE: table_size |
221 | */ | |
222 | __be16 tt_data; | |
a73105b8 AQ |
223 | } __packed; |
224 | ||
96412690 SE |
225 | struct batadv_roam_adv_packet { |
226 | struct batadv_header header; | |
cc47f66e AQ |
227 | uint8_t reserved; |
228 | uint8_t dst[ETH_ALEN]; | |
229 | uint8_t src[ETH_ALEN]; | |
230 | uint8_t client[ETH_ALEN]; | |
231 | } __packed; | |
232 | ||
96412690 | 233 | struct batadv_tt_change { |
a73105b8 AQ |
234 | uint8_t flags; |
235 | uint8_t addr[ETH_ALEN]; | |
236 | } __packed; | |
237 | ||
c6c8fea2 | 238 | #endif /* _NET_BATMAN_ADV_PACKET_H_ */ |