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1 | /* Copyright (C) 2007-2014 B.A.T.M.A.N. contributors: |
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, see <http://www.gnu.org/licenses/>. |
16 | */ |
17 | |
18 | #ifndef _NET_BATMAN_ADV_PACKET_H_ |
19 | #define _NET_BATMAN_ADV_PACKET_H_ |
20 | |
21 | /** |
22 | * enum batadv_packettype - types for batman-adv encapsulated packets |
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 |
33 | * @BATADV_UNICAST_TVLV: unicast packet carrying TVLV containers |
34 | */ |
35 | enum batadv_packettype { |
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 */ |
49 | }; |
50 | |
51 | /** |
52 | * enum batadv_subtype - packet subtype for unicast4addr |
53 | * @BATADV_P_DATA: user payload |
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 |
57 | */ |
58 | enum batadv_subtype { |
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, |
63 | }; |
64 | |
65 | /* this file is included by batctl which needs these defines */ |
66 | #define BATADV_COMPAT_VERSION 15 |
67 | |
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 | */ |
77 | enum batadv_iv_flags { |
78 | BATADV_NOT_BEST_NEXT_HOP = BIT(0), |
79 | BATADV_PRIMARIES_FIRST_HOP = BIT(1), |
80 | BATADV_DIRECTLINK = BIT(2), |
81 | }; |
82 | |
83 | /* ICMP message types */ |
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, |
90 | }; |
91 | |
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 |
96 | * @BATADV_MCAST_WANT_ALL_IPV4: we want all IPv4 multicast packets |
97 | * @BATADV_MCAST_WANT_ALL_IPV6: we want all IPv6 multicast packets |
98 | */ |
99 | enum batadv_mcast_flags { |
100 | BATADV_MCAST_WANT_ALL_UNSNOOPABLES = BIT(0), |
101 | BATADV_MCAST_WANT_ALL_IPV4 = BIT(1), |
102 | BATADV_MCAST_WANT_ALL_IPV6 = BIT(2), |
103 | }; |
104 | |
105 | /* tt data subtypes */ |
106 | #define BATADV_TT_DATA_TYPE_MASK 0x0F |
107 | |
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), |
120 | }; |
121 | |
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. |
146 | */ |
147 | enum batadv_tt_client_flags { |
148 | BATADV_TT_CLIENT_DEL = BIT(0), |
149 | BATADV_TT_CLIENT_ROAM = BIT(1), |
150 | BATADV_TT_CLIENT_WIFI = BIT(4), |
151 | BATADV_TT_CLIENT_ISOLA = BIT(5), |
152 | BATADV_TT_CLIENT_NOPURGE = BIT(8), |
153 | BATADV_TT_CLIENT_NEW = BIT(9), |
154 | BATADV_TT_CLIENT_PENDING = BIT(10), |
155 | BATADV_TT_CLIENT_TEMP = BIT(11), |
156 | }; |
157 | |
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 | |
166 | /* claim frame types for the bridge loop avoidance */ |
167 | enum batadv_bla_claimframe { |
168 | BATADV_CLAIM_TYPE_CLAIM = 0x00, |
169 | BATADV_CLAIM_TYPE_UNCLAIM = 0x01, |
170 | BATADV_CLAIM_TYPE_ANNOUNCE = 0x02, |
171 | BATADV_CLAIM_TYPE_REQUEST = 0x03, |
172 | }; |
173 | |
174 | /** |
175 | * enum batadv_tvlv_type - tvlv type definitions |
176 | * @BATADV_TVLV_GW: gateway tvlv |
177 | * @BATADV_TVLV_DAT: distributed arp table tvlv |
178 | * @BATADV_TVLV_NC: network coding tvlv |
179 | * @BATADV_TVLV_TT: translation table tvlv |
180 | * @BATADV_TVLV_ROAM: roaming advertisement tvlv |
181 | * @BATADV_TVLV_MCAST: multicast capability tvlv |
182 | */ |
183 | enum batadv_tvlv_type { |
184 | BATADV_TVLV_GW = 0x01, |
185 | BATADV_TVLV_DAT = 0x02, |
186 | BATADV_TVLV_NC = 0x03, |
187 | BATADV_TVLV_TT = 0x04, |
188 | BATADV_TVLV_ROAM = 0x05, |
189 | BATADV_TVLV_MCAST = 0x06, |
190 | }; |
191 | |
192 | #pragma pack(2) |
193 | /* the destination hardware field in the ARP frame is used to |
194 | * transport the claim type and the group id |
195 | */ |
196 | struct batadv_bla_claim_dst { |
197 | uint8_t magic[3]; /* FF:43:05 */ |
198 | uint8_t type; /* bla_claimframe */ |
199 | __be16 group; /* group id */ |
200 | }; |
201 | #pragma pack() |
202 | |
203 | /** |
204 | * struct batadv_ogm_packet - ogm (routing protocol) packet |
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 |
208 | * @flags: contains routing relevant flags - see enum batadv_iv_flags |
209 | * @tvlv_len: length of tvlv data following the ogm header |
210 | */ |
211 | struct batadv_ogm_packet { |
212 | uint8_t packet_type; |
213 | uint8_t version; |
214 | uint8_t ttl; |
215 | uint8_t flags; |
216 | __be32 seqno; |
217 | uint8_t orig[ETH_ALEN]; |
218 | uint8_t prev_sender[ETH_ALEN]; |
219 | uint8_t reserved; |
220 | uint8_t tq; |
221 | __be16 tvlv_len; |
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 | }; |
226 | |
227 | #define BATADV_OGM_HLEN sizeof(struct batadv_ogm_packet) |
228 | |
229 | /** |
230 | * batadv_icmp_header - common members among all the ICMP packets |
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 |
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 |
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. |
243 | */ |
244 | struct batadv_icmp_header { |
245 | uint8_t packet_type; |
246 | uint8_t version; |
247 | uint8_t ttl; |
248 | uint8_t msg_type; /* see ICMP message types above */ |
249 | uint8_t dst[ETH_ALEN]; |
250 | uint8_t orig[ETH_ALEN]; |
251 | uint8_t uid; |
252 | uint8_t align[3]; |
253 | }; |
254 | |
255 | /** |
256 | * batadv_icmp_packet - ICMP packet |
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 |
264 | * @reserved: not used - useful for alignment |
265 | * @seqno: ICMP sequence number |
266 | */ |
267 | struct batadv_icmp_packet { |
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; |
275 | uint8_t reserved; |
276 | __be16 seqno; |
277 | }; |
278 | |
279 | #define BATADV_RR_LEN 16 |
280 | |
281 | /** |
282 | * batadv_icmp_packet_rr - ICMP RouteRecord packet |
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 |
290 | * @rr_cur: number of entries the rr array |
291 | * @seqno: ICMP sequence number |
292 | * @rr: route record array |
293 | */ |
294 | struct batadv_icmp_packet_rr { |
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; |
302 | uint8_t rr_cur; |
303 | __be16 seqno; |
304 | uint8_t rr[BATADV_RR_LEN][ETH_ALEN]; |
305 | }; |
306 | |
307 | #define BATADV_ICMP_MAX_PACKET_SIZE sizeof(struct batadv_icmp_packet_rr) |
308 | |
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 | |
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 | */ |
329 | struct batadv_unicast_packet { |
330 | uint8_t packet_type; |
331 | uint8_t version; |
332 | uint8_t ttl; |
333 | uint8_t ttvn; /* destination translation table version number */ |
334 | uint8_t dest[ETH_ALEN]; |
335 | /* "4 bytes boundary + 2 bytes" long to make the payload after the |
336 | * following ethernet header again 4 bytes boundary aligned |
337 | */ |
338 | }; |
339 | |
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 | |
356 | /** |
357 | * struct batadv_frag_packet - fragmented packet |
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 |
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 { |
369 | uint8_t packet_type; |
370 | uint8_t version; /* batman version field */ |
371 | uint8_t ttl; |
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 | |
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 | */ |
396 | struct batadv_bcast_packet { |
397 | uint8_t packet_type; |
398 | uint8_t version; /* batman version field */ |
399 | uint8_t ttl; |
400 | uint8_t reserved; |
401 | __be32 seqno; |
402 | uint8_t orig[ETH_ALEN]; |
403 | /* "4 bytes boundary + 2 bytes" long to make the payload after the |
404 | * following ethernet header again 4 bytes boundary aligned |
405 | */ |
406 | }; |
407 | |
408 | /** |
409 | * struct batadv_coded_packet - network coded packet |
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 |
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 { |
427 | uint8_t packet_type; |
428 | uint8_t version; /* batman version field */ |
429 | uint8_t ttl; |
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; |
441 | __be16 coded_len; |
442 | }; |
443 | |
444 | #pragma pack() |
445 | |
446 | /** |
447 | * struct batadv_unicast_tvlv - generic unicast packet with tvlv payload |
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 |
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 { |
458 | uint8_t packet_type; |
459 | uint8_t version; /* batman version field */ |
460 | uint8_t ttl; |
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 | |
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 | |
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 |
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 |
497 | */ |
498 | struct batadv_tvlv_tt_data { |
499 | uint8_t flags; |
500 | uint8_t ttvn; |
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; |
514 | uint16_t reserved; |
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) |
521 | * @reserved: reserved field - useful for alignment purposes only |
522 | * @addr: mac address of non-mesh client that triggered this tt change |
523 | * @vid: VLAN identifier |
524 | */ |
525 | struct batadv_tvlv_tt_change { |
526 | uint8_t flags; |
527 | uint8_t reserved[3]; |
528 | uint8_t addr[ETH_ALEN]; |
529 | __be16 vid; |
530 | }; |
531 | |
532 | /** |
533 | * struct batadv_tvlv_roam_adv - roaming advertisement |
534 | * @client: mac address of roaming client |
535 | * @vid: VLAN identifier |
536 | */ |
537 | struct batadv_tvlv_roam_adv { |
538 | uint8_t client[ETH_ALEN]; |
539 | __be16 vid; |
540 | }; |
541 | |
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 | |
552 | #endif /* _NET_BATMAN_ADV_PACKET_H_ */ |
553 |
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od-2011-09-18
v2.6.34-rc5
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