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9f6446c7 | 1 | /* Copyright (C) 2007-2015 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 | ||
1e2c2a4f SE |
21 | #include <asm/byteorder.h> |
22 | #include <linux/types.h> | |
23 | ||
ef261577 ML |
24 | /** |
25 | * enum batadv_packettype - types for batman-adv encapsulated packets | |
a1f1ac5c SW |
26 | * @BATADV_IV_OGM: originator messages for B.A.T.M.A.N. IV |
27 | * @BATADV_BCAST: broadcast packets carrying broadcast payload | |
28 | * @BATADV_CODED: network coded packets | |
29 | * | |
30 | * @BATADV_UNICAST: unicast packets carrying unicast payload traffic | |
31 | * @BATADV_UNICAST_FRAG: unicast packets carrying a fragment of the original | |
32 | * payload packet | |
33 | * @BATADV_UNICAST_4ADDR: unicast packet including the originator address of | |
34 | * the sender | |
35 | * @BATADV_ICMP: unicast packet like IP ICMP used for ping or traceroute | |
ef261577 ML |
36 | * @BATADV_UNICAST_TVLV: unicast packet carrying TVLV containers |
37 | */ | |
acd34afa | 38 | enum batadv_packettype { |
a1f1ac5c SW |
39 | /* 0x00 - 0x3f: local packets or special rules for handling */ |
40 | BATADV_IV_OGM = 0x00, | |
41 | BATADV_BCAST = 0x01, | |
42 | BATADV_CODED = 0x02, | |
43 | /* 0x40 - 0x7f: unicast */ | |
44 | #define BATADV_UNICAST_MIN 0x40 | |
45 | BATADV_UNICAST = 0x40, | |
46 | BATADV_UNICAST_FRAG = 0x41, | |
47 | BATADV_UNICAST_4ADDR = 0x42, | |
48 | BATADV_ICMP = 0x43, | |
49 | BATADV_UNICAST_TVLV = 0x44, | |
50 | #define BATADV_UNICAST_MAX 0x7f | |
51 | /* 0x80 - 0xff: reserved */ | |
7cdcf6dd AQ |
52 | }; |
53 | ||
54 | /** | |
55 | * enum batadv_subtype - packet subtype for unicast4addr | |
56 | * @BATADV_P_DATA: user payload | |
5c3a0e55 AQ |
57 | * @BATADV_P_DAT_DHT_GET: DHT request message |
58 | * @BATADV_P_DAT_DHT_PUT: DHT store message | |
59 | * @BATADV_P_DAT_CACHE_REPLY: ARP reply generated by DAT | |
7cdcf6dd AQ |
60 | */ |
61 | enum batadv_subtype { | |
5c3a0e55 AQ |
62 | BATADV_P_DATA = 0x01, |
63 | BATADV_P_DAT_DHT_GET = 0x02, | |
64 | BATADV_P_DAT_DHT_PUT = 0x03, | |
65 | BATADV_P_DAT_CACHE_REPLY = 0x04, | |
e8958dbf | 66 | }; |
c6c8fea2 SE |
67 | |
68 | /* this file is included by batctl which needs these defines */ | |
60cf7981 | 69 | #define BATADV_COMPAT_VERSION 15 |
e8958dbf | 70 | |
18c68d59 SW |
71 | /** |
72 | * enum batadv_iv_flags - flags used in B.A.T.M.A.N. IV OGM packets | |
73 | * @BATADV_NOT_BEST_NEXT_HOP: flag is set when ogm packet is forwarded and was | |
74 | * previously received from someone else than the best neighbor. | |
143d157c | 75 | * @BATADV_PRIMARIES_FIRST_HOP: flag unused. |
18c68d59 SW |
76 | * @BATADV_DIRECTLINK: flag is for the first hop or if rebroadcasted from a |
77 | * one hop neighbor on the interface where it was originally received. | |
78 | */ | |
acd34afa | 79 | enum batadv_iv_flags { |
18c68d59 SW |
80 | BATADV_NOT_BEST_NEXT_HOP = BIT(0), |
81 | BATADV_PRIMARIES_FIRST_HOP = BIT(1), | |
82 | BATADV_DIRECTLINK = BIT(2), | |
e8958dbf | 83 | }; |
c6c8fea2 SE |
84 | |
85 | /* ICMP message types */ | |
acd34afa SE |
86 | enum batadv_icmp_packettype { |
87 | BATADV_ECHO_REPLY = 0, | |
88 | BATADV_DESTINATION_UNREACHABLE = 3, | |
89 | BATADV_ECHO_REQUEST = 8, | |
90 | BATADV_TTL_EXCEEDED = 11, | |
91 | BATADV_PARAMETER_PROBLEM = 12, | |
e8958dbf | 92 | }; |
c6c8fea2 | 93 | |
ab49886e LL |
94 | /** |
95 | * enum batadv_mcast_flags - flags for multicast capabilities and settings | |
96 | * @BATADV_MCAST_WANT_ALL_UNSNOOPABLES: we want all packets destined for | |
97 | * 224.0.0.0/24 or ff02::1 | |
4c8755d6 LL |
98 | * @BATADV_MCAST_WANT_ALL_IPV4: we want all IPv4 multicast packets |
99 | * @BATADV_MCAST_WANT_ALL_IPV6: we want all IPv6 multicast packets | |
ab49886e LL |
100 | */ |
101 | enum batadv_mcast_flags { | |
102 | BATADV_MCAST_WANT_ALL_UNSNOOPABLES = BIT(0), | |
4c8755d6 LL |
103 | BATADV_MCAST_WANT_ALL_IPV4 = BIT(1), |
104 | BATADV_MCAST_WANT_ALL_IPV6 = BIT(2), | |
ab49886e LL |
105 | }; |
106 | ||
e1bf0c14 ML |
107 | /* tt data subtypes */ |
108 | #define BATADV_TT_DATA_TYPE_MASK 0x0F | |
a73105b8 | 109 | |
e1bf0c14 ML |
110 | /** |
111 | * enum batadv_tt_data_flags - flags for tt data tvlv | |
112 | * @BATADV_TT_OGM_DIFF: TT diff propagated through OGM | |
113 | * @BATADV_TT_REQUEST: TT request message | |
114 | * @BATADV_TT_RESPONSE: TT response message | |
115 | * @BATADV_TT_FULL_TABLE: contains full table to replace existing table | |
116 | */ | |
117 | enum batadv_tt_data_flags { | |
118 | BATADV_TT_OGM_DIFF = BIT(0), | |
119 | BATADV_TT_REQUEST = BIT(1), | |
120 | BATADV_TT_RESPONSE = BIT(2), | |
121 | BATADV_TT_FULL_TABLE = BIT(4), | |
a73105b8 AQ |
122 | }; |
123 | ||
43e6f65a AQ |
124 | /** |
125 | * enum batadv_tt_client_flags - TT client specific flags | |
126 | * @BATADV_TT_CLIENT_DEL: the client has to be deleted from the table | |
127 | * @BATADV_TT_CLIENT_ROAM: the client roamed to/from another node and the new | |
128 | * update telling its new real location has not been received/sent yet | |
129 | * @BATADV_TT_CLIENT_WIFI: this client is connected through a wifi interface. | |
130 | * This information is used by the "AP Isolation" feature | |
131 | * @BATADV_TT_CLIENT_ISOLA: this client is considered "isolated". This | |
132 | * information is used by the Extended Isolation feature | |
133 | * @BATADV_TT_CLIENT_NOPURGE: this client should never be removed from the table | |
134 | * @BATADV_TT_CLIENT_NEW: this client has been added to the local table but has | |
135 | * not been announced yet | |
136 | * @BATADV_TT_CLIENT_PENDING: this client is marked for removal but it is kept | |
137 | * in the table for one more originator interval for consistency purposes | |
138 | * @BATADV_TT_CLIENT_TEMP: this global client has been detected to be part of | |
139 | * the network but no nnode has already announced it | |
140 | * | |
141 | * Bits from 0 to 7 are called _remote flags_ because they are sent on the wire. | |
142 | * Bits from 8 to 15 are called _local flags_ because they are used for local | |
143 | * computations only. | |
144 | * | |
145 | * Bits from 4 to 7 - a subset of remote flags - are ensured to be in sync with | |
146 | * the other nodes in the network. To achieve this goal these flags are included | |
147 | * in the TT CRC computation. | |
9cfc7bd6 | 148 | */ |
acd34afa | 149 | enum batadv_tt_client_flags { |
8de47de5 SE |
150 | BATADV_TT_CLIENT_DEL = BIT(0), |
151 | BATADV_TT_CLIENT_ROAM = BIT(1), | |
0eb01568 | 152 | BATADV_TT_CLIENT_WIFI = BIT(4), |
9464d071 | 153 | BATADV_TT_CLIENT_ISOLA = BIT(5), |
8de47de5 SE |
154 | BATADV_TT_CLIENT_NOPURGE = BIT(8), |
155 | BATADV_TT_CLIENT_NEW = BIT(9), | |
156 | BATADV_TT_CLIENT_PENDING = BIT(10), | |
0035f97e | 157 | BATADV_TT_CLIENT_TEMP = BIT(11), |
a73105b8 AQ |
158 | }; |
159 | ||
c018ad3d AQ |
160 | /** |
161 | * batadv_vlan_flags - flags for the four MSB of any vlan ID field | |
162 | * @BATADV_VLAN_HAS_TAG: whether the field contains a valid vlan tag or not | |
163 | */ | |
164 | enum batadv_vlan_flags { | |
165 | BATADV_VLAN_HAS_TAG = BIT(15), | |
166 | }; | |
167 | ||
23721387 | 168 | /* claim frame types for the bridge loop avoidance */ |
acd34afa | 169 | enum batadv_bla_claimframe { |
3eb8773e SW |
170 | BATADV_CLAIM_TYPE_CLAIM = 0x00, |
171 | BATADV_CLAIM_TYPE_UNCLAIM = 0x01, | |
acd34afa SE |
172 | BATADV_CLAIM_TYPE_ANNOUNCE = 0x02, |
173 | BATADV_CLAIM_TYPE_REQUEST = 0x03, | |
23721387 SW |
174 | }; |
175 | ||
414254e3 ML |
176 | /** |
177 | * enum batadv_tvlv_type - tvlv type definitions | |
178 | * @BATADV_TVLV_GW: gateway tvlv | |
17cf0ea4 | 179 | * @BATADV_TVLV_DAT: distributed arp table tvlv |
3f4841ff | 180 | * @BATADV_TVLV_NC: network coding tvlv |
e1bf0c14 | 181 | * @BATADV_TVLV_TT: translation table tvlv |
122edaa0 | 182 | * @BATADV_TVLV_ROAM: roaming advertisement tvlv |
60432d75 | 183 | * @BATADV_TVLV_MCAST: multicast capability tvlv |
414254e3 ML |
184 | */ |
185 | enum batadv_tvlv_type { | |
186 | BATADV_TVLV_GW = 0x01, | |
17cf0ea4 | 187 | BATADV_TVLV_DAT = 0x02, |
3f4841ff | 188 | BATADV_TVLV_NC = 0x03, |
e1bf0c14 | 189 | BATADV_TVLV_TT = 0x04, |
122edaa0 | 190 | BATADV_TVLV_ROAM = 0x05, |
60432d75 | 191 | BATADV_TVLV_MCAST = 0x06, |
414254e3 ML |
192 | }; |
193 | ||
2f7a3182 | 194 | #pragma pack(2) |
23721387 SW |
195 | /* the destination hardware field in the ARP frame is used to |
196 | * transport the claim type and the group id | |
197 | */ | |
96412690 | 198 | struct batadv_bla_claim_dst { |
6b5e971a SE |
199 | u8 magic[3]; /* FF:43:05 */ |
200 | u8 type; /* bla_claimframe */ | |
3e2f1a1b | 201 | __be16 group; /* group id */ |
f6c57a46 | 202 | }; |
aa143d28 | 203 | |
2f7a3182 | 204 | #pragma pack() |
23721387 | 205 | |
ef261577 ML |
206 | /** |
207 | * struct batadv_ogm_packet - ogm (routing protocol) packet | |
a40d9b07 SW |
208 | * @packet_type: batman-adv packet type, part of the general header |
209 | * @version: batman-adv protocol version, part of the genereal header | |
210 | * @ttl: time to live for this packet, part of the genereal header | |
18c68d59 | 211 | * @flags: contains routing relevant flags - see enum batadv_iv_flags |
ef261577 ML |
212 | * @tvlv_len: length of tvlv data following the ogm header |
213 | */ | |
96412690 | 214 | struct batadv_ogm_packet { |
6b5e971a SE |
215 | u8 packet_type; |
216 | u8 version; | |
217 | u8 ttl; | |
218 | u8 flags; | |
219 | __be32 seqno; | |
220 | u8 orig[ETH_ALEN]; | |
221 | u8 prev_sender[ETH_ALEN]; | |
222 | u8 reserved; | |
223 | u8 tq; | |
224 | __be16 tvlv_len; | |
9284a47e SW |
225 | /* __packed is not needed as the struct size is divisible by 4, |
226 | * and the largest data type in this struct has a size of 4. | |
227 | */ | |
228 | }; | |
c6c8fea2 | 229 | |
96412690 | 230 | #define BATADV_OGM_HLEN sizeof(struct batadv_ogm_packet) |
c6c8fea2 | 231 | |
0bf84c16 | 232 | /** |
27a417e6 | 233 | * batadv_icmp_header - common members among all the ICMP packets |
a40d9b07 SW |
234 | * @packet_type: batman-adv packet type, part of the general header |
235 | * @version: batman-adv protocol version, part of the genereal header | |
236 | * @ttl: time to live for this packet, part of the genereal header | |
0bf84c16 AQ |
237 | * @msg_type: ICMP packet type |
238 | * @dst: address of the destination node | |
239 | * @orig: address of the source node | |
240 | * @uid: local ICMP socket identifier | |
27a417e6 AQ |
241 | * @align: not used - useful for alignment purposes only |
242 | * | |
243 | * This structure is used for ICMP packets parsing only and it is never sent | |
244 | * over the wire. The alignment field at the end is there to ensure that | |
245 | * members are padded the same way as they are in real packets. | |
0bf84c16 AQ |
246 | */ |
247 | struct batadv_icmp_header { | |
6b5e971a SE |
248 | u8 packet_type; |
249 | u8 version; | |
250 | u8 ttl; | |
251 | u8 msg_type; /* see ICMP message types above */ | |
252 | u8 dst[ETH_ALEN]; | |
253 | u8 orig[ETH_ALEN]; | |
254 | u8 uid; | |
255 | u8 align[3]; | |
0bf84c16 AQ |
256 | }; |
257 | ||
258 | /** | |
259 | * batadv_icmp_packet - ICMP packet | |
27a417e6 AQ |
260 | * @packet_type: batman-adv packet type, part of the general header |
261 | * @version: batman-adv protocol version, part of the genereal header | |
262 | * @ttl: time to live for this packet, part of the genereal header | |
263 | * @msg_type: ICMP packet type | |
264 | * @dst: address of the destination node | |
265 | * @orig: address of the source node | |
266 | * @uid: local ICMP socket identifier | |
0bf84c16 AQ |
267 | * @reserved: not used - useful for alignment |
268 | * @seqno: ICMP sequence number | |
269 | */ | |
270 | struct batadv_icmp_packet { | |
6b5e971a SE |
271 | u8 packet_type; |
272 | u8 version; | |
273 | u8 ttl; | |
274 | u8 msg_type; /* see ICMP message types above */ | |
275 | u8 dst[ETH_ALEN]; | |
276 | u8 orig[ETH_ALEN]; | |
277 | u8 uid; | |
278 | u8 reserved; | |
279 | __be16 seqno; | |
f6c57a46 | 280 | }; |
c6c8fea2 | 281 | |
7e071c79 | 282 | #define BATADV_RR_LEN 16 |
c6c8fea2 | 283 | |
0bf84c16 AQ |
284 | /** |
285 | * batadv_icmp_packet_rr - ICMP RouteRecord packet | |
27a417e6 AQ |
286 | * @packet_type: batman-adv packet type, part of the general header |
287 | * @version: batman-adv protocol version, part of the genereal header | |
288 | * @ttl: time to live for this packet, part of the genereal header | |
289 | * @msg_type: ICMP packet type | |
290 | * @dst: address of the destination node | |
291 | * @orig: address of the source node | |
292 | * @uid: local ICMP socket identifier | |
0bf84c16 AQ |
293 | * @rr_cur: number of entries the rr array |
294 | * @seqno: ICMP sequence number | |
295 | * @rr: route record array | |
9cfc7bd6 | 296 | */ |
96412690 | 297 | struct batadv_icmp_packet_rr { |
6b5e971a SE |
298 | u8 packet_type; |
299 | u8 version; | |
300 | u8 ttl; | |
301 | u8 msg_type; /* see ICMP message types above */ | |
302 | u8 dst[ETH_ALEN]; | |
303 | u8 orig[ETH_ALEN]; | |
304 | u8 uid; | |
305 | u8 rr_cur; | |
306 | __be16 seqno; | |
307 | u8 rr[BATADV_RR_LEN][ETH_ALEN]; | |
f6c57a46 | 308 | }; |
c6c8fea2 | 309 | |
da6b8c20 SW |
310 | #define BATADV_ICMP_MAX_PACKET_SIZE sizeof(struct batadv_icmp_packet_rr) |
311 | ||
e022b956 SE |
312 | /* All packet headers in front of an ethernet header have to be completely |
313 | * divisible by 2 but not by 4 to make the payload after the ethernet | |
314 | * header again 4 bytes boundary aligned. | |
315 | * | |
316 | * A packing of 2 is necessary to avoid extra padding at the end of the struct | |
317 | * caused by a structure member which is larger than two bytes. Otherwise | |
318 | * the structure would not fulfill the previously mentioned rule to avoid the | |
319 | * misalignment of the payload after the ethernet header. It may also lead to | |
320 | * leakage of information when the padding it not initialized before sending. | |
321 | */ | |
322 | #pragma pack(2) | |
323 | ||
a40d9b07 SW |
324 | /** |
325 | * struct batadv_unicast_packet - unicast packet for network payload | |
326 | * @packet_type: batman-adv packet type, part of the general header | |
327 | * @version: batman-adv protocol version, part of the genereal header | |
328 | * @ttl: time to live for this packet, part of the genereal header | |
329 | * @ttvn: translation table version number | |
330 | * @dest: originator destination of the unicast packet | |
331 | */ | |
96412690 | 332 | struct batadv_unicast_packet { |
6b5e971a SE |
333 | u8 packet_type; |
334 | u8 version; | |
335 | u8 ttl; | |
336 | u8 ttvn; /* destination translation table version number */ | |
337 | u8 dest[ETH_ALEN]; | |
f6c57a46 SE |
338 | /* "4 bytes boundary + 2 bytes" long to make the payload after the |
339 | * following ethernet header again 4 bytes boundary aligned | |
340 | */ | |
341 | }; | |
c6c8fea2 | 342 | |
7cdcf6dd AQ |
343 | /** |
344 | * struct batadv_unicast_4addr_packet - extended unicast packet | |
345 | * @u: common unicast packet header | |
346 | * @src: address of the source | |
347 | * @subtype: packet subtype | |
348 | */ | |
349 | struct batadv_unicast_4addr_packet { | |
350 | struct batadv_unicast_packet u; | |
6b5e971a SE |
351 | u8 src[ETH_ALEN]; |
352 | u8 subtype; | |
353 | u8 reserved; | |
7cdcf6dd AQ |
354 | /* "4 bytes boundary + 2 bytes" long to make the payload after the |
355 | * following ethernet header again 4 bytes boundary aligned | |
356 | */ | |
357 | }; | |
358 | ||
610bfc6b MH |
359 | /** |
360 | * struct batadv_frag_packet - fragmented packet | |
a40d9b07 SW |
361 | * @packet_type: batman-adv packet type, part of the general header |
362 | * @version: batman-adv protocol version, part of the genereal header | |
363 | * @ttl: time to live for this packet, part of the genereal header | |
610bfc6b MH |
364 | * @dest: final destination used when routing fragments |
365 | * @orig: originator of the fragment used when merging the packet | |
366 | * @no: fragment number within this sequence | |
367 | * @reserved: reserved byte for alignment | |
368 | * @seqno: sequence identification | |
369 | * @total_size: size of the merged packet | |
370 | */ | |
371 | struct batadv_frag_packet { | |
6b5e971a SE |
372 | u8 packet_type; |
373 | u8 version; /* batman version field */ | |
374 | u8 ttl; | |
610bfc6b | 375 | #if defined(__BIG_ENDIAN_BITFIELD) |
6b5e971a SE |
376 | u8 no:4; |
377 | u8 reserved:4; | |
610bfc6b | 378 | #elif defined(__LITTLE_ENDIAN_BITFIELD) |
6b5e971a SE |
379 | u8 reserved:4; |
380 | u8 no:4; | |
610bfc6b | 381 | #else |
3f68785e | 382 | #error "unknown bitfield endianness" |
610bfc6b | 383 | #endif |
6b5e971a SE |
384 | u8 dest[ETH_ALEN]; |
385 | u8 orig[ETH_ALEN]; | |
386 | __be16 seqno; | |
387 | __be16 total_size; | |
610bfc6b MH |
388 | }; |
389 | ||
a40d9b07 SW |
390 | /** |
391 | * struct batadv_bcast_packet - broadcast packet for network payload | |
392 | * @packet_type: batman-adv packet type, part of the general header | |
393 | * @version: batman-adv protocol version, part of the genereal header | |
394 | * @ttl: time to live for this packet, part of the genereal header | |
395 | * @reserved: reserved byte for alignment | |
396 | * @seqno: sequence identification | |
397 | * @orig: originator of the broadcast packet | |
398 | */ | |
96412690 | 399 | struct batadv_bcast_packet { |
6b5e971a SE |
400 | u8 packet_type; |
401 | u8 version; /* batman version field */ | |
402 | u8 ttl; | |
403 | u8 reserved; | |
404 | __be32 seqno; | |
405 | u8 orig[ETH_ALEN]; | |
f6c57a46 SE |
406 | /* "4 bytes boundary + 2 bytes" long to make the payload after the |
407 | * following ethernet header again 4 bytes boundary aligned | |
408 | */ | |
e022b956 SE |
409 | }; |
410 | ||
3c12de9a MH |
411 | /** |
412 | * struct batadv_coded_packet - network coded packet | |
a40d9b07 SW |
413 | * @packet_type: batman-adv packet type, part of the general header |
414 | * @version: batman-adv protocol version, part of the genereal header | |
415 | * @ttl: time to live for this packet, part of the genereal header | |
3c12de9a MH |
416 | * @reserved: Align following fields to 2-byte boundaries |
417 | * @first_source: original source of first included packet | |
418 | * @first_orig_dest: original destinal of first included packet | |
419 | * @first_crc: checksum of first included packet | |
420 | * @first_ttvn: tt-version number of first included packet | |
421 | * @second_ttl: ttl of second packet | |
422 | * @second_dest: second receiver of this coded packet | |
423 | * @second_source: original source of second included packet | |
424 | * @second_orig_dest: original destination of second included packet | |
425 | * @second_crc: checksum of second included packet | |
426 | * @second_ttvn: tt version number of second included packet | |
427 | * @coded_len: length of network coded part of the payload | |
428 | */ | |
429 | struct batadv_coded_packet { | |
6b5e971a SE |
430 | u8 packet_type; |
431 | u8 version; /* batman version field */ | |
432 | u8 ttl; | |
433 | u8 first_ttvn; | |
434 | /* u8 first_dest[ETH_ALEN]; - saved in mac header destination */ | |
435 | u8 first_source[ETH_ALEN]; | |
436 | u8 first_orig_dest[ETH_ALEN]; | |
437 | __be32 first_crc; | |
438 | u8 second_ttl; | |
439 | u8 second_ttvn; | |
440 | u8 second_dest[ETH_ALEN]; | |
441 | u8 second_source[ETH_ALEN]; | |
442 | u8 second_orig_dest[ETH_ALEN]; | |
443 | __be32 second_crc; | |
444 | __be16 coded_len; | |
3c12de9a MH |
445 | }; |
446 | ||
46b76e0b SW |
447 | #pragma pack() |
448 | ||
ef261577 ML |
449 | /** |
450 | * struct batadv_unicast_tvlv - generic unicast packet with tvlv payload | |
a40d9b07 SW |
451 | * @packet_type: batman-adv packet type, part of the general header |
452 | * @version: batman-adv protocol version, part of the genereal header | |
453 | * @ttl: time to live for this packet, part of the genereal header | |
ef261577 ML |
454 | * @reserved: reserved field (for packet alignment) |
455 | * @src: address of the source | |
456 | * @dst: address of the destination | |
457 | * @tvlv_len: length of tvlv data following the unicast tvlv header | |
3f68785e | 458 | * @align: 2 bytes to align the header to a 4 byte boundary |
ef261577 ML |
459 | */ |
460 | struct batadv_unicast_tvlv_packet { | |
6b5e971a SE |
461 | u8 packet_type; |
462 | u8 version; /* batman version field */ | |
463 | u8 ttl; | |
464 | u8 reserved; | |
465 | u8 dst[ETH_ALEN]; | |
466 | u8 src[ETH_ALEN]; | |
467 | __be16 tvlv_len; | |
468 | u16 align; | |
ef261577 ML |
469 | }; |
470 | ||
471 | /** | |
472 | * struct batadv_tvlv_hdr - base tvlv header struct | |
473 | * @type: tvlv container type (see batadv_tvlv_type) | |
474 | * @version: tvlv container version | |
475 | * @len: tvlv container length | |
476 | */ | |
477 | struct batadv_tvlv_hdr { | |
6b5e971a SE |
478 | u8 type; |
479 | u8 version; | |
480 | __be16 len; | |
ef261577 ML |
481 | }; |
482 | ||
414254e3 ML |
483 | /** |
484 | * struct batadv_tvlv_gateway_data - gateway data propagated through gw tvlv | |
485 | * container | |
486 | * @bandwidth_down: advertised uplink download bandwidth | |
487 | * @bandwidth_up: advertised uplink upload bandwidth | |
488 | */ | |
489 | struct batadv_tvlv_gateway_data { | |
490 | __be32 bandwidth_down; | |
491 | __be32 bandwidth_up; | |
492 | }; | |
493 | ||
e1bf0c14 ML |
494 | /** |
495 | * struct batadv_tvlv_tt_data - tt data propagated through the tt tvlv container | |
496 | * @flags: translation table flags (see batadv_tt_data_flags) | |
497 | * @ttvn: translation table version number | |
7ea7b4a1 AQ |
498 | * @vlan_num: number of announced VLANs. In the TVLV this struct is followed by |
499 | * one batadv_tvlv_tt_vlan_data object per announced vlan | |
e1bf0c14 ML |
500 | */ |
501 | struct batadv_tvlv_tt_data { | |
6b5e971a SE |
502 | u8 flags; |
503 | u8 ttvn; | |
504 | __be16 num_vlan; | |
7ea7b4a1 AQ |
505 | }; |
506 | ||
507 | /** | |
508 | * struct batadv_tvlv_tt_vlan_data - vlan specific tt data propagated through | |
509 | * the tt tvlv container | |
510 | * @crc: crc32 checksum of the entries belonging to this vlan | |
511 | * @vid: vlan identifier | |
512 | * @reserved: unused, useful for alignment purposes | |
513 | */ | |
514 | struct batadv_tvlv_tt_vlan_data { | |
6b5e971a SE |
515 | __be32 crc; |
516 | __be16 vid; | |
517 | u16 reserved; | |
e1bf0c14 ML |
518 | }; |
519 | ||
520 | /** | |
521 | * struct batadv_tvlv_tt_change - translation table diff data | |
522 | * @flags: status indicators concerning the non-mesh client (see | |
523 | * batadv_tt_client_flags) | |
ca663046 | 524 | * @reserved: reserved field - useful for alignment purposes only |
e1bf0c14 | 525 | * @addr: mac address of non-mesh client that triggered this tt change |
c018ad3d | 526 | * @vid: VLAN identifier |
e1bf0c14 ML |
527 | */ |
528 | struct batadv_tvlv_tt_change { | |
6b5e971a SE |
529 | u8 flags; |
530 | u8 reserved[3]; | |
531 | u8 addr[ETH_ALEN]; | |
c018ad3d | 532 | __be16 vid; |
e1bf0c14 ML |
533 | }; |
534 | ||
122edaa0 ML |
535 | /** |
536 | * struct batadv_tvlv_roam_adv - roaming advertisement | |
537 | * @client: mac address of roaming client | |
c018ad3d | 538 | * @vid: VLAN identifier |
122edaa0 ML |
539 | */ |
540 | struct batadv_tvlv_roam_adv { | |
6b5e971a | 541 | u8 client[ETH_ALEN]; |
c018ad3d | 542 | __be16 vid; |
122edaa0 ML |
543 | }; |
544 | ||
60432d75 LL |
545 | /** |
546 | * struct batadv_tvlv_mcast_data - payload of a multicast tvlv | |
547 | * @flags: multicast flags announced by the orig node | |
548 | * @reserved: reserved field | |
549 | */ | |
550 | struct batadv_tvlv_mcast_data { | |
6b5e971a SE |
551 | u8 flags; |
552 | u8 reserved[3]; | |
60432d75 LL |
553 | }; |
554 | ||
c6c8fea2 | 555 | #endif /* _NET_BATMAN_ADV_PACKET_H_ */ |