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1/* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) */
2/* Copyright (C) 2007-2017 B.A.T.M.A.N. contributors:
3 *
4 * Marek Lindner, Simon Wunderlich
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of version 2 of the GNU General Public
8 * License as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, see <http://www.gnu.org/licenses/>.
17 */
18
19#ifndef _UAPI_LINUX_BATADV_PACKET_H_
20#define _UAPI_LINUX_BATADV_PACKET_H_
21
22#include <asm/byteorder.h>
23#include <linux/if_ether.h>
24#include <linux/types.h>
25
26/**
27 * batadv_tp_is_error() - Check throughput meter return code for error
28 * @n: throughput meter return code
29 *
30 * Return: 0 when not error was detected, != 0 otherwise
31 */
32#define batadv_tp_is_error(n) ((__u8)(n) > 127 ? 1 : 0)
33
34/**
35 * enum batadv_packettype - types for batman-adv encapsulated packets
36 * @BATADV_IV_OGM: originator messages for B.A.T.M.A.N. IV
37 * @BATADV_BCAST: broadcast packets carrying broadcast payload
38 * @BATADV_CODED: network coded packets
39 * @BATADV_ELP: echo location packets for B.A.T.M.A.N. V
40 * @BATADV_OGM2: originator messages for B.A.T.M.A.N. V
41 *
42 * @BATADV_UNICAST: unicast packets carrying unicast payload traffic
43 * @BATADV_UNICAST_FRAG: unicast packets carrying a fragment of the original
44 * payload packet
45 * @BATADV_UNICAST_4ADDR: unicast packet including the originator address of
46 * the sender
47 * @BATADV_ICMP: unicast packet like IP ICMP used for ping or traceroute
48 * @BATADV_UNICAST_TVLV: unicast packet carrying TVLV containers
49 */
50enum batadv_packettype {
51 /* 0x00 - 0x3f: local packets or special rules for handling */
52 BATADV_IV_OGM = 0x00,
53 BATADV_BCAST = 0x01,
54 BATADV_CODED = 0x02,
55 BATADV_ELP = 0x03,
56 BATADV_OGM2 = 0x04,
57 /* 0x40 - 0x7f: unicast */
58#define BATADV_UNICAST_MIN 0x40
59 BATADV_UNICAST = 0x40,
60 BATADV_UNICAST_FRAG = 0x41,
61 BATADV_UNICAST_4ADDR = 0x42,
62 BATADV_ICMP = 0x43,
63 BATADV_UNICAST_TVLV = 0x44,
64#define BATADV_UNICAST_MAX 0x7f
65 /* 0x80 - 0xff: reserved */
66};
67
68/**
69 * enum batadv_subtype - packet subtype for unicast4addr
70 * @BATADV_P_DATA: user payload
71 * @BATADV_P_DAT_DHT_GET: DHT request message
72 * @BATADV_P_DAT_DHT_PUT: DHT store message
73 * @BATADV_P_DAT_CACHE_REPLY: ARP reply generated by DAT
74 */
75enum batadv_subtype {
76 BATADV_P_DATA = 0x01,
77 BATADV_P_DAT_DHT_GET = 0x02,
78 BATADV_P_DAT_DHT_PUT = 0x03,
79 BATADV_P_DAT_CACHE_REPLY = 0x04,
80};
81
82/* this file is included by batctl which needs these defines */
83#define BATADV_COMPAT_VERSION 15
84
85/**
86 * enum batadv_iv_flags - flags used in B.A.T.M.A.N. IV OGM packets
87 * @BATADV_NOT_BEST_NEXT_HOP: flag is set when ogm packet is forwarded and was
88 * previously received from someone else than the best neighbor.
89 * @BATADV_PRIMARIES_FIRST_HOP: flag unused.
90 * @BATADV_DIRECTLINK: flag is for the first hop or if rebroadcasted from a
91 * one hop neighbor on the interface where it was originally received.
92 */
93enum batadv_iv_flags {
94 BATADV_NOT_BEST_NEXT_HOP = 1UL << 0,
95 BATADV_PRIMARIES_FIRST_HOP = 1UL << 1,
96 BATADV_DIRECTLINK = 1UL << 2,
97};
98
99/**
100 * enum batadv_icmp_packettype - ICMP message types
101 * @BATADV_ECHO_REPLY: success reply to BATADV_ECHO_REQUEST
102 * @BATADV_DESTINATION_UNREACHABLE: failure when route to destination not found
103 * @BATADV_ECHO_REQUEST: request BATADV_ECHO_REPLY from destination
104 * @BATADV_TTL_EXCEEDED: error after BATADV_ECHO_REQUEST traversed too many hops
105 * @BATADV_PARAMETER_PROBLEM: return code for malformed messages
106 * @BATADV_TP: throughput meter packet
107 */
108enum batadv_icmp_packettype {
109 BATADV_ECHO_REPLY = 0,
110 BATADV_DESTINATION_UNREACHABLE = 3,
111 BATADV_ECHO_REQUEST = 8,
112 BATADV_TTL_EXCEEDED = 11,
113 BATADV_PARAMETER_PROBLEM = 12,
114 BATADV_TP = 15,
115};
116
117/**
118 * enum batadv_mcast_flags - flags for multicast capabilities and settings
119 * @BATADV_MCAST_WANT_ALL_UNSNOOPABLES: we want all packets destined for
120 * 224.0.0.0/24 or ff02::1
121 * @BATADV_MCAST_WANT_ALL_IPV4: we want all IPv4 multicast packets
122 * @BATADV_MCAST_WANT_ALL_IPV6: we want all IPv6 multicast packets
123 */
124enum batadv_mcast_flags {
125 BATADV_MCAST_WANT_ALL_UNSNOOPABLES = 1UL << 0,
126 BATADV_MCAST_WANT_ALL_IPV4 = 1UL << 1,
127 BATADV_MCAST_WANT_ALL_IPV6 = 1UL << 2,
128};
129
130/* tt data subtypes */
131#define BATADV_TT_DATA_TYPE_MASK 0x0F
132
133/**
134 * enum batadv_tt_data_flags - flags for tt data tvlv
135 * @BATADV_TT_OGM_DIFF: TT diff propagated through OGM
136 * @BATADV_TT_REQUEST: TT request message
137 * @BATADV_TT_RESPONSE: TT response message
138 * @BATADV_TT_FULL_TABLE: contains full table to replace existing table
139 */
140enum batadv_tt_data_flags {
141 BATADV_TT_OGM_DIFF = 1UL << 0,
142 BATADV_TT_REQUEST = 1UL << 1,
143 BATADV_TT_RESPONSE = 1UL << 2,
144 BATADV_TT_FULL_TABLE = 1UL << 4,
145};
146
147/**
148 * enum batadv_vlan_flags - flags for the four MSB of any vlan ID field
149 * @BATADV_VLAN_HAS_TAG: whether the field contains a valid vlan tag or not
150 */
151enum batadv_vlan_flags {
152 BATADV_VLAN_HAS_TAG = 1UL << 15,
153};
154
155/**
156 * enum batadv_bla_claimframe - claim frame types for the bridge loop avoidance
157 * @BATADV_CLAIM_TYPE_CLAIM: claim of a client mac address
158 * @BATADV_CLAIM_TYPE_UNCLAIM: unclaim of a client mac address
159 * @BATADV_CLAIM_TYPE_ANNOUNCE: announcement of backbone with current crc
160 * @BATADV_CLAIM_TYPE_REQUEST: request of full claim table
161 * @BATADV_CLAIM_TYPE_LOOPDETECT: mesh-traversing loop detect packet
162 */
163enum batadv_bla_claimframe {
164 BATADV_CLAIM_TYPE_CLAIM = 0x00,
165 BATADV_CLAIM_TYPE_UNCLAIM = 0x01,
166 BATADV_CLAIM_TYPE_ANNOUNCE = 0x02,
167 BATADV_CLAIM_TYPE_REQUEST = 0x03,
168 BATADV_CLAIM_TYPE_LOOPDETECT = 0x04,
169};
170
171/**
172 * enum batadv_tvlv_type - tvlv type definitions
173 * @BATADV_TVLV_GW: gateway tvlv
174 * @BATADV_TVLV_DAT: distributed arp table tvlv
175 * @BATADV_TVLV_NC: network coding tvlv
176 * @BATADV_TVLV_TT: translation table tvlv
177 * @BATADV_TVLV_ROAM: roaming advertisement tvlv
178 * @BATADV_TVLV_MCAST: multicast capability tvlv
179 */
180enum batadv_tvlv_type {
181 BATADV_TVLV_GW = 0x01,
182 BATADV_TVLV_DAT = 0x02,
183 BATADV_TVLV_NC = 0x03,
184 BATADV_TVLV_TT = 0x04,
185 BATADV_TVLV_ROAM = 0x05,
186 BATADV_TVLV_MCAST = 0x06,
187};
188
189#pragma pack(2)
190/* the destination hardware field in the ARP frame is used to
191 * transport the claim type and the group id
192 */
193struct batadv_bla_claim_dst {
194 __u8 magic[3]; /* FF:43:05 */
195 __u8 type; /* bla_claimframe */
196 __be16 group; /* group id */
197};
198
199#pragma pack()
200
201/**
202 * struct batadv_ogm_packet - ogm (routing protocol) packet
203 * @packet_type: batman-adv packet type, part of the general header
204 * @version: batman-adv protocol version, part of the genereal header
205 * @ttl: time to live for this packet, part of the genereal header
206 * @flags: contains routing relevant flags - see enum batadv_iv_flags
207 * @seqno: sequence identification
208 * @orig: address of the source node
209 * @prev_sender: address of the previous sender
210 * @reserved: reserved byte for alignment
211 * @tq: transmission quality
212 * @tvlv_len: length of tvlv data following the ogm header
213 */
214struct batadv_ogm_packet {
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;
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};
229
230#define BATADV_OGM_HLEN sizeof(struct batadv_ogm_packet)
231
232/**
233 * struct batadv_ogm2_packet - ogm2 (routing protocol) packet
234 * @packet_type: batman-adv packet type, part of the general header
235 * @version: batman-adv protocol version, part of the general header
236 * @ttl: time to live for this packet, part of the general header
237 * @flags: reseved for routing relevant flags - currently always 0
238 * @seqno: sequence number
239 * @orig: originator mac address
240 * @tvlv_len: length of the appended tvlv buffer (in bytes)
241 * @throughput: the currently flooded path throughput
242 */
243struct batadv_ogm2_packet {
244 __u8 packet_type;
245 __u8 version;
246 __u8 ttl;
247 __u8 flags;
248 __be32 seqno;
249 __u8 orig[ETH_ALEN];
250 __be16 tvlv_len;
251 __be32 throughput;
252 /* __packed is not needed as the struct size is divisible by 4,
253 * and the largest data type in this struct has a size of 4.
254 */
255};
256
257#define BATADV_OGM2_HLEN sizeof(struct batadv_ogm2_packet)
258
259/**
260 * struct batadv_elp_packet - elp (neighbor discovery) packet
261 * @packet_type: batman-adv packet type, part of the general header
262 * @version: batman-adv protocol version, part of the genereal header
263 * @orig: originator mac address
264 * @seqno: sequence number
265 * @elp_interval: currently used ELP sending interval in ms
266 */
267struct batadv_elp_packet {
268 __u8 packet_type;
269 __u8 version;
270 __u8 orig[ETH_ALEN];
271 __be32 seqno;
272 __be32 elp_interval;
273};
274
275#define BATADV_ELP_HLEN sizeof(struct batadv_elp_packet)
276
277/**
278 * struct batadv_icmp_header - common members among all the ICMP packets
279 * @packet_type: batman-adv packet type, part of the general header
280 * @version: batman-adv protocol version, part of the genereal header
281 * @ttl: time to live for this packet, part of the genereal header
282 * @msg_type: ICMP packet type
283 * @dst: address of the destination node
284 * @orig: address of the source node
285 * @uid: local ICMP socket identifier
286 * @align: not used - useful for alignment purposes only
287 *
288 * This structure is used for ICMP packets parsing only and it is never sent
289 * over the wire. The alignment field at the end is there to ensure that
290 * members are padded the same way as they are in real packets.
291 */
292struct batadv_icmp_header {
293 __u8 packet_type;
294 __u8 version;
295 __u8 ttl;
296 __u8 msg_type; /* see ICMP message types above */
297 __u8 dst[ETH_ALEN];
298 __u8 orig[ETH_ALEN];
299 __u8 uid;
300 __u8 align[3];
301};
302
303/**
304 * struct batadv_icmp_packet - ICMP packet
305 * @packet_type: batman-adv packet type, part of the general header
306 * @version: batman-adv protocol version, part of the genereal header
307 * @ttl: time to live for this packet, part of the genereal header
308 * @msg_type: ICMP packet type
309 * @dst: address of the destination node
310 * @orig: address of the source node
311 * @uid: local ICMP socket identifier
312 * @reserved: not used - useful for alignment
313 * @seqno: ICMP sequence number
314 */
315struct batadv_icmp_packet {
316 __u8 packet_type;
317 __u8 version;
318 __u8 ttl;
319 __u8 msg_type; /* see ICMP message types above */
320 __u8 dst[ETH_ALEN];
321 __u8 orig[ETH_ALEN];
322 __u8 uid;
323 __u8 reserved;
324 __be16 seqno;
325};
326
327/**
328 * struct batadv_icmp_tp_packet - ICMP TP Meter packet
329 * @packet_type: batman-adv packet type, part of the general header
330 * @version: batman-adv protocol version, part of the genereal header
331 * @ttl: time to live for this packet, part of the genereal header
332 * @msg_type: ICMP packet type
333 * @dst: address of the destination node
334 * @orig: address of the source node
335 * @uid: local ICMP socket identifier
336 * @subtype: TP packet subtype (see batadv_icmp_tp_subtype)
337 * @session: TP session identifier
338 * @seqno: the TP sequence number
339 * @timestamp: time when the packet has been sent. This value is filled in a
340 * TP_MSG and echoed back in the next TP_ACK so that the sender can compute the
341 * RTT. Since it is read only by the host which wrote it, there is no need to
342 * store it using network order
343 */
344struct batadv_icmp_tp_packet {
345 __u8 packet_type;
346 __u8 version;
347 __u8 ttl;
348 __u8 msg_type; /* see ICMP message types above */
349 __u8 dst[ETH_ALEN];
350 __u8 orig[ETH_ALEN];
351 __u8 uid;
352 __u8 subtype;
353 __u8 session[2];
354 __be32 seqno;
355 __be32 timestamp;
356};
357
358/**
359 * enum batadv_icmp_tp_subtype - ICMP TP Meter packet subtypes
360 * @BATADV_TP_MSG: Msg from sender to receiver
361 * @BATADV_TP_ACK: acknowledgment from receiver to sender
362 */
363enum batadv_icmp_tp_subtype {
364 BATADV_TP_MSG = 0,
365 BATADV_TP_ACK,
366};
367
368#define BATADV_RR_LEN 16
369
370/**
371 * struct batadv_icmp_packet_rr - ICMP RouteRecord packet
372 * @packet_type: batman-adv packet type, part of the general header
373 * @version: batman-adv protocol version, part of the genereal header
374 * @ttl: time to live for this packet, part of the genereal header
375 * @msg_type: ICMP packet type
376 * @dst: address of the destination node
377 * @orig: address of the source node
378 * @uid: local ICMP socket identifier
379 * @rr_cur: number of entries the rr array
380 * @seqno: ICMP sequence number
381 * @rr: route record array
382 */
383struct batadv_icmp_packet_rr {
384 __u8 packet_type;
385 __u8 version;
386 __u8 ttl;
387 __u8 msg_type; /* see ICMP message types above */
388 __u8 dst[ETH_ALEN];
389 __u8 orig[ETH_ALEN];
390 __u8 uid;
391 __u8 rr_cur;
392 __be16 seqno;
393 __u8 rr[BATADV_RR_LEN][ETH_ALEN];
394};
395
396#define BATADV_ICMP_MAX_PACKET_SIZE sizeof(struct batadv_icmp_packet_rr)
397
398/* All packet headers in front of an ethernet header have to be completely
399 * divisible by 2 but not by 4 to make the payload after the ethernet
400 * header again 4 bytes boundary aligned.
401 *
402 * A packing of 2 is necessary to avoid extra padding at the end of the struct
403 * caused by a structure member which is larger than two bytes. Otherwise
404 * the structure would not fulfill the previously mentioned rule to avoid the
405 * misalignment of the payload after the ethernet header. It may also lead to
406 * leakage of information when the padding it not initialized before sending.
407 */
408#pragma pack(2)
409
410/**
411 * struct batadv_unicast_packet - unicast packet for network payload
412 * @packet_type: batman-adv packet type, part of the general header
413 * @version: batman-adv protocol version, part of the genereal header
414 * @ttl: time to live for this packet, part of the genereal header
415 * @ttvn: translation table version number
416 * @dest: originator destination of the unicast packet
417 */
418struct batadv_unicast_packet {
419 __u8 packet_type;
420 __u8 version;
421 __u8 ttl;
422 __u8 ttvn; /* destination translation table version number */
423 __u8 dest[ETH_ALEN];
424 /* "4 bytes boundary + 2 bytes" long to make the payload after the
425 * following ethernet header again 4 bytes boundary aligned
426 */
427};
428
429/**
430 * struct batadv_unicast_4addr_packet - extended unicast packet
431 * @u: common unicast packet header
432 * @src: address of the source
433 * @subtype: packet subtype
434 * @reserved: reserved byte for alignment
435 */
436struct batadv_unicast_4addr_packet {
437 struct batadv_unicast_packet u;
438 __u8 src[ETH_ALEN];
439 __u8 subtype;
440 __u8 reserved;
441 /* "4 bytes boundary + 2 bytes" long to make the payload after the
442 * following ethernet header again 4 bytes boundary aligned
443 */
444};
445
446/**
447 * struct batadv_frag_packet - fragmented packet
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 * @dest: final destination used when routing fragments
452 * @orig: originator of the fragment used when merging the packet
453 * @no: fragment number within this sequence
454 * @priority: priority of frame, from ToS IP precedence or 802.1p
455 * @reserved: reserved byte for alignment
456 * @seqno: sequence identification
457 * @total_size: size of the merged packet
458 */
459struct batadv_frag_packet {
460 __u8 packet_type;
461 __u8 version; /* batman version field */
462 __u8 ttl;
463#if defined(__BIG_ENDIAN_BITFIELD)
464 __u8 no:4;
465 __u8 priority:3;
466 __u8 reserved:1;
467#elif defined(__LITTLE_ENDIAN_BITFIELD)
468 __u8 reserved:1;
469 __u8 priority:3;
470 __u8 no:4;
471#else
472#error "unknown bitfield endianness"
473#endif
474 __u8 dest[ETH_ALEN];
475 __u8 orig[ETH_ALEN];
476 __be16 seqno;
477 __be16 total_size;
478};
479
480/**
481 * struct batadv_bcast_packet - broadcast packet for network payload
482 * @packet_type: batman-adv packet type, part of the general header
483 * @version: batman-adv protocol version, part of the genereal header
484 * @ttl: time to live for this packet, part of the genereal header
485 * @reserved: reserved byte for alignment
486 * @seqno: sequence identification
487 * @orig: originator of the broadcast packet
488 */
489struct batadv_bcast_packet {
490 __u8 packet_type;
491 __u8 version; /* batman version field */
492 __u8 ttl;
493 __u8 reserved;
494 __be32 seqno;
495 __u8 orig[ETH_ALEN];
496 /* "4 bytes boundary + 2 bytes" long to make the payload after the
497 * following ethernet header again 4 bytes boundary aligned
498 */
499};
500
501/**
502 * struct batadv_coded_packet - network coded packet
503 * @packet_type: batman-adv packet type, part of the general header
504 * @version: batman-adv protocol version, part of the genereal header
505 * @ttl: time to live for this packet, part of the genereal header
506 * @first_source: original source of first included packet
507 * @first_orig_dest: original destinal of first included packet
508 * @first_crc: checksum of first included packet
509 * @first_ttvn: tt-version number of first included packet
510 * @second_ttl: ttl of second packet
511 * @second_dest: second receiver of this coded packet
512 * @second_source: original source of second included packet
513 * @second_orig_dest: original destination of second included packet
514 * @second_crc: checksum of second included packet
515 * @second_ttvn: tt version number of second included packet
516 * @coded_len: length of network coded part of the payload
517 */
518struct batadv_coded_packet {
519 __u8 packet_type;
520 __u8 version; /* batman version field */
521 __u8 ttl;
522 __u8 first_ttvn;
523 /* __u8 first_dest[ETH_ALEN]; - saved in mac header destination */
524 __u8 first_source[ETH_ALEN];
525 __u8 first_orig_dest[ETH_ALEN];
526 __be32 first_crc;
527 __u8 second_ttl;
528 __u8 second_ttvn;
529 __u8 second_dest[ETH_ALEN];
530 __u8 second_source[ETH_ALEN];
531 __u8 second_orig_dest[ETH_ALEN];
532 __be32 second_crc;
533 __be16 coded_len;
534};
535
536#pragma pack()
537
538/**
539 * struct batadv_unicast_tvlv_packet - generic unicast packet with tvlv payload
540 * @packet_type: batman-adv packet type, part of the general header
541 * @version: batman-adv protocol version, part of the genereal header
542 * @ttl: time to live for this packet, part of the genereal header
543 * @reserved: reserved field (for packet alignment)
544 * @src: address of the source
545 * @dst: address of the destination
546 * @tvlv_len: length of tvlv data following the unicast tvlv header
547 * @align: 2 bytes to align the header to a 4 byte boundary
548 */
549struct batadv_unicast_tvlv_packet {
550 __u8 packet_type;
551 __u8 version; /* batman version field */
552 __u8 ttl;
553 __u8 reserved;
554 __u8 dst[ETH_ALEN];
555 __u8 src[ETH_ALEN];
556 __be16 tvlv_len;
557 __u16 align;
558};
559
560/**
561 * struct batadv_tvlv_hdr - base tvlv header struct
562 * @type: tvlv container type (see batadv_tvlv_type)
563 * @version: tvlv container version
564 * @len: tvlv container length
565 */
566struct batadv_tvlv_hdr {
567 __u8 type;
568 __u8 version;
569 __be16 len;
570};
571
572/**
573 * struct batadv_tvlv_gateway_data - gateway data propagated through gw tvlv
574 * container
575 * @bandwidth_down: advertised uplink download bandwidth
576 * @bandwidth_up: advertised uplink upload bandwidth
577 */
578struct batadv_tvlv_gateway_data {
579 __be32 bandwidth_down;
580 __be32 bandwidth_up;
581};
582
583/**
584 * struct batadv_tvlv_tt_data - tt data propagated through the tt tvlv container
585 * @flags: translation table flags (see batadv_tt_data_flags)
586 * @ttvn: translation table version number
587 * @num_vlan: number of announced VLANs. In the TVLV this struct is followed by
588 * one batadv_tvlv_tt_vlan_data object per announced vlan
589 */
590struct batadv_tvlv_tt_data {
591 __u8 flags;
592 __u8 ttvn;
593 __be16 num_vlan;
594};
595
596/**
597 * struct batadv_tvlv_tt_vlan_data - vlan specific tt data propagated through
598 * the tt tvlv container
599 * @crc: crc32 checksum of the entries belonging to this vlan
600 * @vid: vlan identifier
601 * @reserved: unused, useful for alignment purposes
602 */
603struct batadv_tvlv_tt_vlan_data {
604 __be32 crc;
605 __be16 vid;
606 __u16 reserved;
607};
608
609/**
610 * struct batadv_tvlv_tt_change - translation table diff data
611 * @flags: status indicators concerning the non-mesh client (see
612 * batadv_tt_client_flags)
613 * @reserved: reserved field - useful for alignment purposes only
614 * @addr: mac address of non-mesh client that triggered this tt change
615 * @vid: VLAN identifier
616 */
617struct batadv_tvlv_tt_change {
618 __u8 flags;
619 __u8 reserved[3];
620 __u8 addr[ETH_ALEN];
621 __be16 vid;
622};
623
624/**
625 * struct batadv_tvlv_roam_adv - roaming advertisement
626 * @client: mac address of roaming client
627 * @vid: VLAN identifier
628 */
629struct batadv_tvlv_roam_adv {
630 __u8 client[ETH_ALEN];
631 __be16 vid;
632};
633
634/**
635 * struct batadv_tvlv_mcast_data - payload of a multicast tvlv
636 * @flags: multicast flags announced by the orig node
637 * @reserved: reserved field
638 */
639struct batadv_tvlv_mcast_data {
640 __u8 flags;
641 __u8 reserved[3];
642};
643
644#endif /* _UAPI_LINUX_BATADV_PACKET_H_ */
generated by cgit v1.2.2 (git 2.25.0) at 2025-04-27 08:51:01 -0400