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e19f9759 | 1 | /* Copyright (C) 2007-2014 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 | |
ebf38fb7 | 15 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
c6c8fea2 SE |
16 | */ |
17 | ||
18 | #ifndef _NET_BATMAN_ADV_PACKET_H_ | |
19 | #define _NET_BATMAN_ADV_PACKET_H_ | |
20 | ||
ef261577 ML |
21 | /** |
22 | * enum batadv_packettype - types for batman-adv encapsulated packets | |
a1f1ac5c SW |
23 | * @BATADV_IV_OGM: originator messages for B.A.T.M.A.N. IV |
24 | * @BATADV_BCAST: broadcast packets carrying broadcast payload | |
25 | * @BATADV_CODED: network coded packets | |
26 | * | |
27 | * @BATADV_UNICAST: unicast packets carrying unicast payload traffic | |
28 | * @BATADV_UNICAST_FRAG: unicast packets carrying a fragment of the original | |
29 | * payload packet | |
30 | * @BATADV_UNICAST_4ADDR: unicast packet including the originator address of | |
31 | * the sender | |
32 | * @BATADV_ICMP: unicast packet like IP ICMP used for ping or traceroute | |
ef261577 ML |
33 | * @BATADV_UNICAST_TVLV: unicast packet carrying TVLV containers |
34 | */ | |
acd34afa | 35 | enum batadv_packettype { |
a1f1ac5c SW |
36 | /* 0x00 - 0x3f: local packets or special rules for handling */ |
37 | BATADV_IV_OGM = 0x00, | |
38 | BATADV_BCAST = 0x01, | |
39 | BATADV_CODED = 0x02, | |
40 | /* 0x40 - 0x7f: unicast */ | |
41 | #define BATADV_UNICAST_MIN 0x40 | |
42 | BATADV_UNICAST = 0x40, | |
43 | BATADV_UNICAST_FRAG = 0x41, | |
44 | BATADV_UNICAST_4ADDR = 0x42, | |
45 | BATADV_ICMP = 0x43, | |
46 | BATADV_UNICAST_TVLV = 0x44, | |
47 | #define BATADV_UNICAST_MAX 0x7f | |
48 | /* 0x80 - 0xff: reserved */ | |
7cdcf6dd AQ |
49 | }; |
50 | ||
51 | /** | |
52 | * enum batadv_subtype - packet subtype for unicast4addr | |
53 | * @BATADV_P_DATA: user payload | |
5c3a0e55 AQ |
54 | * @BATADV_P_DAT_DHT_GET: DHT request message |
55 | * @BATADV_P_DAT_DHT_PUT: DHT store message | |
56 | * @BATADV_P_DAT_CACHE_REPLY: ARP reply generated by DAT | |
7cdcf6dd AQ |
57 | */ |
58 | enum batadv_subtype { | |
5c3a0e55 AQ |
59 | BATADV_P_DATA = 0x01, |
60 | BATADV_P_DAT_DHT_GET = 0x02, | |
61 | BATADV_P_DAT_DHT_PUT = 0x03, | |
62 | BATADV_P_DAT_CACHE_REPLY = 0x04, | |
e8958dbf | 63 | }; |
c6c8fea2 SE |
64 | |
65 | /* this file is included by batctl which needs these defines */ | |
60cf7981 | 66 | #define BATADV_COMPAT_VERSION 15 |
e8958dbf | 67 | |
18c68d59 SW |
68 | /** |
69 | * enum batadv_iv_flags - flags used in B.A.T.M.A.N. IV OGM packets | |
70 | * @BATADV_NOT_BEST_NEXT_HOP: flag is set when ogm packet is forwarded and was | |
71 | * previously received from someone else than the best neighbor. | |
72 | * @BATADV_PRIMARIES_FIRST_HOP: flag is set when the primary interface address | |
73 | * is used, and the packet travels its first hop. | |
74 | * @BATADV_DIRECTLINK: flag is for the first hop or if rebroadcasted from a | |
75 | * one hop neighbor on the interface where it was originally received. | |
76 | */ | |
acd34afa | 77 | enum batadv_iv_flags { |
18c68d59 SW |
78 | BATADV_NOT_BEST_NEXT_HOP = BIT(0), |
79 | BATADV_PRIMARIES_FIRST_HOP = BIT(1), | |
80 | BATADV_DIRECTLINK = BIT(2), | |
e8958dbf | 81 | }; |
c6c8fea2 SE |
82 | |
83 | /* ICMP message types */ | |
acd34afa SE |
84 | enum batadv_icmp_packettype { |
85 | BATADV_ECHO_REPLY = 0, | |
86 | BATADV_DESTINATION_UNREACHABLE = 3, | |
87 | BATADV_ECHO_REQUEST = 8, | |
88 | BATADV_TTL_EXCEEDED = 11, | |
89 | BATADV_PARAMETER_PROBLEM = 12, | |
e8958dbf | 90 | }; |
c6c8fea2 | 91 | |
ab49886e LL |
92 | /** |
93 | * enum batadv_mcast_flags - flags for multicast capabilities and settings | |
94 | * @BATADV_MCAST_WANT_ALL_UNSNOOPABLES: we want all packets destined for | |
95 | * 224.0.0.0/24 or ff02::1 | |
4c8755d6 LL |
96 | * @BATADV_MCAST_WANT_ALL_IPV4: we want all IPv4 multicast packets |
97 | * @BATADV_MCAST_WANT_ALL_IPV6: we want all IPv6 multicast packets | |
ab49886e LL |
98 | */ |
99 | enum batadv_mcast_flags { | |
100 | BATADV_MCAST_WANT_ALL_UNSNOOPABLES = BIT(0), | |
4c8755d6 LL |
101 | BATADV_MCAST_WANT_ALL_IPV4 = BIT(1), |
102 | BATADV_MCAST_WANT_ALL_IPV6 = BIT(2), | |
ab49886e LL |
103 | }; |
104 | ||
e1bf0c14 ML |
105 | /* tt data subtypes */ |
106 | #define BATADV_TT_DATA_TYPE_MASK 0x0F | |
a73105b8 | 107 | |
e1bf0c14 ML |
108 | /** |
109 | * enum batadv_tt_data_flags - flags for tt data tvlv | |
110 | * @BATADV_TT_OGM_DIFF: TT diff propagated through OGM | |
111 | * @BATADV_TT_REQUEST: TT request message | |
112 | * @BATADV_TT_RESPONSE: TT response message | |
113 | * @BATADV_TT_FULL_TABLE: contains full table to replace existing table | |
114 | */ | |
115 | enum batadv_tt_data_flags { | |
116 | BATADV_TT_OGM_DIFF = BIT(0), | |
117 | BATADV_TT_REQUEST = BIT(1), | |
118 | BATADV_TT_RESPONSE = BIT(2), | |
119 | BATADV_TT_FULL_TABLE = BIT(4), | |
a73105b8 AQ |
120 | }; |
121 | ||
43e6f65a AQ |
122 | /** |
123 | * enum batadv_tt_client_flags - TT client specific flags | |
124 | * @BATADV_TT_CLIENT_DEL: the client has to be deleted from the table | |
125 | * @BATADV_TT_CLIENT_ROAM: the client roamed to/from another node and the new | |
126 | * update telling its new real location has not been received/sent yet | |
127 | * @BATADV_TT_CLIENT_WIFI: this client is connected through a wifi interface. | |
128 | * This information is used by the "AP Isolation" feature | |
129 | * @BATADV_TT_CLIENT_ISOLA: this client is considered "isolated". This | |
130 | * information is used by the Extended Isolation feature | |
131 | * @BATADV_TT_CLIENT_NOPURGE: this client should never be removed from the table | |
132 | * @BATADV_TT_CLIENT_NEW: this client has been added to the local table but has | |
133 | * not been announced yet | |
134 | * @BATADV_TT_CLIENT_PENDING: this client is marked for removal but it is kept | |
135 | * in the table for one more originator interval for consistency purposes | |
136 | * @BATADV_TT_CLIENT_TEMP: this global client has been detected to be part of | |
137 | * the network but no nnode has already announced it | |
138 | * | |
139 | * Bits from 0 to 7 are called _remote flags_ because they are sent on the wire. | |
140 | * Bits from 8 to 15 are called _local flags_ because they are used for local | |
141 | * computations only. | |
142 | * | |
143 | * Bits from 4 to 7 - a subset of remote flags - are ensured to be in sync with | |
144 | * the other nodes in the network. To achieve this goal these flags are included | |
145 | * in the TT CRC computation. | |
9cfc7bd6 | 146 | */ |
acd34afa | 147 | enum batadv_tt_client_flags { |
8de47de5 SE |
148 | BATADV_TT_CLIENT_DEL = BIT(0), |
149 | BATADV_TT_CLIENT_ROAM = BIT(1), | |
0eb01568 | 150 | BATADV_TT_CLIENT_WIFI = BIT(4), |
9464d071 | 151 | BATADV_TT_CLIENT_ISOLA = BIT(5), |
8de47de5 SE |
152 | BATADV_TT_CLIENT_NOPURGE = BIT(8), |
153 | BATADV_TT_CLIENT_NEW = BIT(9), | |
154 | BATADV_TT_CLIENT_PENDING = BIT(10), | |
0035f97e | 155 | BATADV_TT_CLIENT_TEMP = BIT(11), |
a73105b8 AQ |
156 | }; |
157 | ||
c018ad3d AQ |
158 | /** |
159 | * batadv_vlan_flags - flags for the four MSB of any vlan ID field | |
160 | * @BATADV_VLAN_HAS_TAG: whether the field contains a valid vlan tag or not | |
161 | */ | |
162 | enum batadv_vlan_flags { | |
163 | BATADV_VLAN_HAS_TAG = BIT(15), | |
164 | }; | |
165 | ||
23721387 | 166 | /* claim frame types for the bridge loop avoidance */ |
acd34afa | 167 | enum batadv_bla_claimframe { |
3eb8773e SW |
168 | BATADV_CLAIM_TYPE_CLAIM = 0x00, |
169 | BATADV_CLAIM_TYPE_UNCLAIM = 0x01, | |
acd34afa SE |
170 | BATADV_CLAIM_TYPE_ANNOUNCE = 0x02, |
171 | BATADV_CLAIM_TYPE_REQUEST = 0x03, | |
23721387 SW |
172 | }; |
173 | ||
414254e3 ML |
174 | /** |
175 | * enum batadv_tvlv_type - tvlv type definitions | |
176 | * @BATADV_TVLV_GW: gateway tvlv | |
17cf0ea4 | 177 | * @BATADV_TVLV_DAT: distributed arp table tvlv |
3f4841ff | 178 | * @BATADV_TVLV_NC: network coding tvlv |
e1bf0c14 | 179 | * @BATADV_TVLV_TT: translation table tvlv |
122edaa0 | 180 | * @BATADV_TVLV_ROAM: roaming advertisement tvlv |
60432d75 | 181 | * @BATADV_TVLV_MCAST: multicast capability tvlv |
414254e3 ML |
182 | */ |
183 | enum batadv_tvlv_type { | |
184 | BATADV_TVLV_GW = 0x01, | |
17cf0ea4 | 185 | BATADV_TVLV_DAT = 0x02, |
3f4841ff | 186 | BATADV_TVLV_NC = 0x03, |
e1bf0c14 | 187 | BATADV_TVLV_TT = 0x04, |
122edaa0 | 188 | BATADV_TVLV_ROAM = 0x05, |
60432d75 | 189 | BATADV_TVLV_MCAST = 0x06, |
414254e3 ML |
190 | }; |
191 | ||
2f7a3182 | 192 | #pragma pack(2) |
23721387 SW |
193 | /* the destination hardware field in the ARP frame is used to |
194 | * transport the claim type and the group id | |
195 | */ | |
96412690 | 196 | struct batadv_bla_claim_dst { |
23721387 SW |
197 | uint8_t magic[3]; /* FF:43:05 */ |
198 | uint8_t type; /* bla_claimframe */ | |
3e2f1a1b | 199 | __be16 group; /* group id */ |
f6c57a46 | 200 | }; |
2f7a3182 | 201 | #pragma pack() |
23721387 | 202 | |
ef261577 ML |
203 | /** |
204 | * struct batadv_ogm_packet - ogm (routing protocol) packet | |
a40d9b07 SW |
205 | * @packet_type: batman-adv packet type, part of the general header |
206 | * @version: batman-adv protocol version, part of the genereal header | |
207 | * @ttl: time to live for this packet, part of the genereal header | |
18c68d59 | 208 | * @flags: contains routing relevant flags - see enum batadv_iv_flags |
ef261577 ML |
209 | * @tvlv_len: length of tvlv data following the ogm header |
210 | */ | |
96412690 | 211 | struct batadv_ogm_packet { |
a40d9b07 SW |
212 | uint8_t packet_type; |
213 | uint8_t version; | |
214 | uint8_t ttl; | |
18c68d59 | 215 | uint8_t flags; |
e0f5211f | 216 | __be32 seqno; |
c1faead3 AQ |
217 | uint8_t orig[ETH_ALEN]; |
218 | uint8_t prev_sender[ETH_ALEN]; | |
414254e3 | 219 | uint8_t reserved; |
3b27ffb0 | 220 | uint8_t tq; |
ef261577 | 221 | __be16 tvlv_len; |
9284a47e SW |
222 | /* __packed is not needed as the struct size is divisible by 4, |
223 | * and the largest data type in this struct has a size of 4. | |
224 | */ | |
225 | }; | |
c6c8fea2 | 226 | |
96412690 | 227 | #define BATADV_OGM_HLEN sizeof(struct batadv_ogm_packet) |
c6c8fea2 | 228 | |
0bf84c16 | 229 | /** |
27a417e6 | 230 | * batadv_icmp_header - common members among all the ICMP packets |
a40d9b07 SW |
231 | * @packet_type: batman-adv packet type, part of the general header |
232 | * @version: batman-adv protocol version, part of the genereal header | |
233 | * @ttl: time to live for this packet, part of the genereal header | |
0bf84c16 AQ |
234 | * @msg_type: ICMP packet type |
235 | * @dst: address of the destination node | |
236 | * @orig: address of the source node | |
237 | * @uid: local ICMP socket identifier | |
27a417e6 AQ |
238 | * @align: not used - useful for alignment purposes only |
239 | * | |
240 | * This structure is used for ICMP packets parsing only and it is never sent | |
241 | * over the wire. The alignment field at the end is there to ensure that | |
242 | * members are padded the same way as they are in real packets. | |
0bf84c16 AQ |
243 | */ |
244 | struct batadv_icmp_header { | |
a40d9b07 SW |
245 | uint8_t packet_type; |
246 | uint8_t version; | |
247 | uint8_t ttl; | |
3b27ffb0 | 248 | uint8_t msg_type; /* see ICMP message types above */ |
c1faead3 AQ |
249 | uint8_t dst[ETH_ALEN]; |
250 | uint8_t orig[ETH_ALEN]; | |
c6c8fea2 | 251 | uint8_t uid; |
27a417e6 | 252 | uint8_t align[3]; |
0bf84c16 AQ |
253 | }; |
254 | ||
255 | /** | |
256 | * batadv_icmp_packet - ICMP packet | |
27a417e6 AQ |
257 | * @packet_type: batman-adv packet type, part of the general header |
258 | * @version: batman-adv protocol version, part of the genereal header | |
259 | * @ttl: time to live for this packet, part of the genereal header | |
260 | * @msg_type: ICMP packet type | |
261 | * @dst: address of the destination node | |
262 | * @orig: address of the source node | |
263 | * @uid: local ICMP socket identifier | |
0bf84c16 AQ |
264 | * @reserved: not used - useful for alignment |
265 | * @seqno: ICMP sequence number | |
266 | */ | |
267 | struct batadv_icmp_packet { | |
27a417e6 AQ |
268 | uint8_t packet_type; |
269 | uint8_t version; | |
270 | uint8_t ttl; | |
271 | uint8_t msg_type; /* see ICMP message types above */ | |
272 | uint8_t dst[ETH_ALEN]; | |
273 | uint8_t orig[ETH_ALEN]; | |
274 | uint8_t uid; | |
3b27ffb0 | 275 | uint8_t reserved; |
0bf84c16 | 276 | __be16 seqno; |
f6c57a46 | 277 | }; |
c6c8fea2 | 278 | |
7e071c79 | 279 | #define BATADV_RR_LEN 16 |
c6c8fea2 | 280 | |
0bf84c16 AQ |
281 | /** |
282 | * batadv_icmp_packet_rr - ICMP RouteRecord packet | |
27a417e6 AQ |
283 | * @packet_type: batman-adv packet type, part of the general header |
284 | * @version: batman-adv protocol version, part of the genereal header | |
285 | * @ttl: time to live for this packet, part of the genereal header | |
286 | * @msg_type: ICMP packet type | |
287 | * @dst: address of the destination node | |
288 | * @orig: address of the source node | |
289 | * @uid: local ICMP socket identifier | |
0bf84c16 AQ |
290 | * @rr_cur: number of entries the rr array |
291 | * @seqno: ICMP sequence number | |
292 | * @rr: route record array | |
9cfc7bd6 | 293 | */ |
96412690 | 294 | struct batadv_icmp_packet_rr { |
27a417e6 AQ |
295 | uint8_t packet_type; |
296 | uint8_t version; | |
297 | uint8_t ttl; | |
298 | uint8_t msg_type; /* see ICMP message types above */ | |
299 | uint8_t dst[ETH_ALEN]; | |
300 | uint8_t orig[ETH_ALEN]; | |
301 | uint8_t uid; | |
c6c8fea2 | 302 | uint8_t rr_cur; |
0bf84c16 | 303 | __be16 seqno; |
7e071c79 | 304 | uint8_t rr[BATADV_RR_LEN][ETH_ALEN]; |
f6c57a46 | 305 | }; |
c6c8fea2 | 306 | |
da6b8c20 SW |
307 | #define BATADV_ICMP_MAX_PACKET_SIZE sizeof(struct batadv_icmp_packet_rr) |
308 | ||
e022b956 SE |
309 | /* All packet headers in front of an ethernet header have to be completely |
310 | * divisible by 2 but not by 4 to make the payload after the ethernet | |
311 | * header again 4 bytes boundary aligned. | |
312 | * | |
313 | * A packing of 2 is necessary to avoid extra padding at the end of the struct | |
314 | * caused by a structure member which is larger than two bytes. Otherwise | |
315 | * the structure would not fulfill the previously mentioned rule to avoid the | |
316 | * misalignment of the payload after the ethernet header. It may also lead to | |
317 | * leakage of information when the padding it not initialized before sending. | |
318 | */ | |
319 | #pragma pack(2) | |
320 | ||
a40d9b07 SW |
321 | /** |
322 | * struct batadv_unicast_packet - unicast packet for network payload | |
323 | * @packet_type: batman-adv packet type, part of the general header | |
324 | * @version: batman-adv protocol version, part of the genereal header | |
325 | * @ttl: time to live for this packet, part of the genereal header | |
326 | * @ttvn: translation table version number | |
327 | * @dest: originator destination of the unicast packet | |
328 | */ | |
96412690 | 329 | struct batadv_unicast_packet { |
a40d9b07 SW |
330 | uint8_t packet_type; |
331 | uint8_t version; | |
332 | uint8_t ttl; | |
a73105b8 | 333 | uint8_t ttvn; /* destination translation table version number */ |
c1faead3 | 334 | uint8_t dest[ETH_ALEN]; |
f6c57a46 SE |
335 | /* "4 bytes boundary + 2 bytes" long to make the payload after the |
336 | * following ethernet header again 4 bytes boundary aligned | |
337 | */ | |
338 | }; | |
c6c8fea2 | 339 | |
7cdcf6dd AQ |
340 | /** |
341 | * struct batadv_unicast_4addr_packet - extended unicast packet | |
342 | * @u: common unicast packet header | |
343 | * @src: address of the source | |
344 | * @subtype: packet subtype | |
345 | */ | |
346 | struct batadv_unicast_4addr_packet { | |
347 | struct batadv_unicast_packet u; | |
348 | uint8_t src[ETH_ALEN]; | |
349 | uint8_t subtype; | |
350 | uint8_t reserved; | |
351 | /* "4 bytes boundary + 2 bytes" long to make the payload after the | |
352 | * following ethernet header again 4 bytes boundary aligned | |
353 | */ | |
354 | }; | |
355 | ||
610bfc6b MH |
356 | /** |
357 | * struct batadv_frag_packet - fragmented packet | |
a40d9b07 SW |
358 | * @packet_type: batman-adv packet type, part of the general header |
359 | * @version: batman-adv protocol version, part of the genereal header | |
360 | * @ttl: time to live for this packet, part of the genereal header | |
610bfc6b MH |
361 | * @dest: final destination used when routing fragments |
362 | * @orig: originator of the fragment used when merging the packet | |
363 | * @no: fragment number within this sequence | |
364 | * @reserved: reserved byte for alignment | |
365 | * @seqno: sequence identification | |
366 | * @total_size: size of the merged packet | |
367 | */ | |
368 | struct batadv_frag_packet { | |
a40d9b07 SW |
369 | uint8_t packet_type; |
370 | uint8_t version; /* batman version field */ | |
371 | uint8_t ttl; | |
610bfc6b MH |
372 | #if defined(__BIG_ENDIAN_BITFIELD) |
373 | uint8_t no:4; | |
374 | uint8_t reserved:4; | |
375 | #elif defined(__LITTLE_ENDIAN_BITFIELD) | |
376 | uint8_t reserved:4; | |
377 | uint8_t no:4; | |
378 | #else | |
379 | #error "unknown bitfield endianess" | |
380 | #endif | |
381 | uint8_t dest[ETH_ALEN]; | |
382 | uint8_t orig[ETH_ALEN]; | |
383 | __be16 seqno; | |
384 | __be16 total_size; | |
385 | }; | |
386 | ||
a40d9b07 SW |
387 | /** |
388 | * struct batadv_bcast_packet - broadcast packet for network payload | |
389 | * @packet_type: batman-adv packet type, part of the general header | |
390 | * @version: batman-adv protocol version, part of the genereal header | |
391 | * @ttl: time to live for this packet, part of the genereal header | |
392 | * @reserved: reserved byte for alignment | |
393 | * @seqno: sequence identification | |
394 | * @orig: originator of the broadcast packet | |
395 | */ | |
96412690 | 396 | struct batadv_bcast_packet { |
a40d9b07 SW |
397 | uint8_t packet_type; |
398 | uint8_t version; /* batman version field */ | |
399 | uint8_t ttl; | |
3b27ffb0 | 400 | uint8_t reserved; |
3e2f1a1b | 401 | __be32 seqno; |
c1faead3 | 402 | uint8_t orig[ETH_ALEN]; |
f6c57a46 SE |
403 | /* "4 bytes boundary + 2 bytes" long to make the payload after the |
404 | * following ethernet header again 4 bytes boundary aligned | |
405 | */ | |
e022b956 SE |
406 | }; |
407 | ||
3c12de9a MH |
408 | /** |
409 | * struct batadv_coded_packet - network coded packet | |
a40d9b07 SW |
410 | * @packet_type: batman-adv packet type, part of the general header |
411 | * @version: batman-adv protocol version, part of the genereal header | |
412 | * @ttl: time to live for this packet, part of the genereal header | |
3c12de9a MH |
413 | * @reserved: Align following fields to 2-byte boundaries |
414 | * @first_source: original source of first included packet | |
415 | * @first_orig_dest: original destinal of first included packet | |
416 | * @first_crc: checksum of first included packet | |
417 | * @first_ttvn: tt-version number of first included packet | |
418 | * @second_ttl: ttl of second packet | |
419 | * @second_dest: second receiver of this coded packet | |
420 | * @second_source: original source of second included packet | |
421 | * @second_orig_dest: original destination of second included packet | |
422 | * @second_crc: checksum of second included packet | |
423 | * @second_ttvn: tt version number of second included packet | |
424 | * @coded_len: length of network coded part of the payload | |
425 | */ | |
426 | struct batadv_coded_packet { | |
a40d9b07 SW |
427 | uint8_t packet_type; |
428 | uint8_t version; /* batman version field */ | |
429 | uint8_t ttl; | |
3c12de9a MH |
430 | uint8_t first_ttvn; |
431 | /* uint8_t first_dest[ETH_ALEN]; - saved in mac header destination */ | |
432 | uint8_t first_source[ETH_ALEN]; | |
433 | uint8_t first_orig_dest[ETH_ALEN]; | |
434 | __be32 first_crc; | |
435 | uint8_t second_ttl; | |
436 | uint8_t second_ttvn; | |
437 | uint8_t second_dest[ETH_ALEN]; | |
438 | uint8_t second_source[ETH_ALEN]; | |
439 | uint8_t second_orig_dest[ETH_ALEN]; | |
440 | __be32 second_crc; | |
e6a0b495 | 441 | __be16 coded_len; |
3c12de9a MH |
442 | }; |
443 | ||
46b76e0b SW |
444 | #pragma pack() |
445 | ||
ef261577 ML |
446 | /** |
447 | * struct batadv_unicast_tvlv - generic unicast packet with tvlv payload | |
a40d9b07 SW |
448 | * @packet_type: batman-adv packet type, part of the general header |
449 | * @version: batman-adv protocol version, part of the genereal header | |
450 | * @ttl: time to live for this packet, part of the genereal header | |
ef261577 ML |
451 | * @reserved: reserved field (for packet alignment) |
452 | * @src: address of the source | |
453 | * @dst: address of the destination | |
454 | * @tvlv_len: length of tvlv data following the unicast tvlv header | |
455 | * @align: 2 bytes to align the header to a 4 byte boundry | |
456 | */ | |
457 | struct batadv_unicast_tvlv_packet { | |
a40d9b07 SW |
458 | uint8_t packet_type; |
459 | uint8_t version; /* batman version field */ | |
460 | uint8_t ttl; | |
ef261577 ML |
461 | uint8_t reserved; |
462 | uint8_t dst[ETH_ALEN]; | |
463 | uint8_t src[ETH_ALEN]; | |
464 | __be16 tvlv_len; | |
465 | uint16_t align; | |
466 | }; | |
467 | ||
468 | /** | |
469 | * struct batadv_tvlv_hdr - base tvlv header struct | |
470 | * @type: tvlv container type (see batadv_tvlv_type) | |
471 | * @version: tvlv container version | |
472 | * @len: tvlv container length | |
473 | */ | |
474 | struct batadv_tvlv_hdr { | |
475 | uint8_t type; | |
476 | uint8_t version; | |
477 | __be16 len; | |
478 | }; | |
479 | ||
414254e3 ML |
480 | /** |
481 | * struct batadv_tvlv_gateway_data - gateway data propagated through gw tvlv | |
482 | * container | |
483 | * @bandwidth_down: advertised uplink download bandwidth | |
484 | * @bandwidth_up: advertised uplink upload bandwidth | |
485 | */ | |
486 | struct batadv_tvlv_gateway_data { | |
487 | __be32 bandwidth_down; | |
488 | __be32 bandwidth_up; | |
489 | }; | |
490 | ||
e1bf0c14 ML |
491 | /** |
492 | * struct batadv_tvlv_tt_data - tt data propagated through the tt tvlv container | |
493 | * @flags: translation table flags (see batadv_tt_data_flags) | |
494 | * @ttvn: translation table version number | |
7ea7b4a1 AQ |
495 | * @vlan_num: number of announced VLANs. In the TVLV this struct is followed by |
496 | * one batadv_tvlv_tt_vlan_data object per announced vlan | |
e1bf0c14 ML |
497 | */ |
498 | struct batadv_tvlv_tt_data { | |
499 | uint8_t flags; | |
500 | uint8_t ttvn; | |
7ea7b4a1 AQ |
501 | __be16 num_vlan; |
502 | }; | |
503 | ||
504 | /** | |
505 | * struct batadv_tvlv_tt_vlan_data - vlan specific tt data propagated through | |
506 | * the tt tvlv container | |
507 | * @crc: crc32 checksum of the entries belonging to this vlan | |
508 | * @vid: vlan identifier | |
509 | * @reserved: unused, useful for alignment purposes | |
510 | */ | |
511 | struct batadv_tvlv_tt_vlan_data { | |
512 | __be32 crc; | |
513 | __be16 vid; | |
ced72933 | 514 | uint16_t reserved; |
e1bf0c14 ML |
515 | }; |
516 | ||
517 | /** | |
518 | * struct batadv_tvlv_tt_change - translation table diff data | |
519 | * @flags: status indicators concerning the non-mesh client (see | |
520 | * batadv_tt_client_flags) | |
ca663046 | 521 | * @reserved: reserved field - useful for alignment purposes only |
e1bf0c14 | 522 | * @addr: mac address of non-mesh client that triggered this tt change |
c018ad3d | 523 | * @vid: VLAN identifier |
e1bf0c14 ML |
524 | */ |
525 | struct batadv_tvlv_tt_change { | |
526 | uint8_t flags; | |
ca663046 | 527 | uint8_t reserved[3]; |
e1bf0c14 | 528 | uint8_t addr[ETH_ALEN]; |
c018ad3d | 529 | __be16 vid; |
e1bf0c14 ML |
530 | }; |
531 | ||
122edaa0 ML |
532 | /** |
533 | * struct batadv_tvlv_roam_adv - roaming advertisement | |
534 | * @client: mac address of roaming client | |
c018ad3d | 535 | * @vid: VLAN identifier |
122edaa0 ML |
536 | */ |
537 | struct batadv_tvlv_roam_adv { | |
538 | uint8_t client[ETH_ALEN]; | |
c018ad3d | 539 | __be16 vid; |
122edaa0 ML |
540 | }; |
541 | ||
60432d75 LL |
542 | /** |
543 | * struct batadv_tvlv_mcast_data - payload of a multicast tvlv | |
544 | * @flags: multicast flags announced by the orig node | |
545 | * @reserved: reserved field | |
546 | */ | |
547 | struct batadv_tvlv_mcast_data { | |
548 | uint8_t flags; | |
549 | uint8_t reserved[3]; | |
550 | }; | |
551 | ||
c6c8fea2 | 552 | #endif /* _NET_BATMAN_ADV_PACKET_H_ */ |