1 /* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) */ 2 /* Copyright (C) 2007-2018 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 */ 50 enum 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 */ 75 enum 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 */ 93 enum 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 */ 108 enum 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 */ 124 enum 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 */ 140 enum 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 */ 151 enum 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 */ 163 enum 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 */ 180 enum 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 */ 193 struct batadv_bla_claim_dst { 194 __u8 magic[3]; /* FF:43:05 */ 195 __u8 type; /* bla_claimframe */ 196 __be16 group; /* group id */ 197 }; 198 199 /** 200 * struct batadv_ogm_packet - ogm (routing protocol) packet 201 * @packet_type: batman-adv packet type, part of the general header 202 * @version: batman-adv protocol version, part of the genereal header 203 * @ttl: time to live for this packet, part of the genereal header 204 * @flags: contains routing relevant flags - see enum batadv_iv_flags 205 * @seqno: sequence identification 206 * @orig: address of the source node 207 * @prev_sender: address of the previous sender 208 * @reserved: reserved byte for alignment 209 * @tq: transmission quality 210 * @tvlv_len: length of tvlv data following the ogm header 211 */ 212 struct batadv_ogm_packet { 213 __u8 packet_type; 214 __u8 version; 215 __u8 ttl; 216 __u8 flags; 217 __be32 seqno; 218 __u8 orig[ETH_ALEN]; 219 __u8 prev_sender[ETH_ALEN]; 220 __u8 reserved; 221 __u8 tq; 222 __be16 tvlv_len; 223 }; 224 225 #define BATADV_OGM_HLEN sizeof(struct batadv_ogm_packet) 226 227 /** 228 * struct batadv_ogm2_packet - ogm2 (routing protocol) packet 229 * @packet_type: batman-adv packet type, part of the general header 230 * @version: batman-adv protocol version, part of the general header 231 * @ttl: time to live for this packet, part of the general header 232 * @flags: reseved for routing relevant flags - currently always 0 233 * @seqno: sequence number 234 * @orig: originator mac address 235 * @tvlv_len: length of the appended tvlv buffer (in bytes) 236 * @throughput: the currently flooded path throughput 237 */ 238 struct batadv_ogm2_packet { 239 __u8 packet_type; 240 __u8 version; 241 __u8 ttl; 242 __u8 flags; 243 __be32 seqno; 244 __u8 orig[ETH_ALEN]; 245 __be16 tvlv_len; 246 __be32 throughput; 247 }; 248 249 #define BATADV_OGM2_HLEN sizeof(struct batadv_ogm2_packet) 250 251 /** 252 * struct batadv_elp_packet - elp (neighbor discovery) packet 253 * @packet_type: batman-adv packet type, part of the general header 254 * @version: batman-adv protocol version, part of the genereal header 255 * @orig: originator mac address 256 * @seqno: sequence number 257 * @elp_interval: currently used ELP sending interval in ms 258 */ 259 struct batadv_elp_packet { 260 __u8 packet_type; 261 __u8 version; 262 __u8 orig[ETH_ALEN]; 263 __be32 seqno; 264 __be32 elp_interval; 265 }; 266 267 #define BATADV_ELP_HLEN sizeof(struct batadv_elp_packet) 268 269 /** 270 * struct batadv_icmp_header - common members among all the ICMP packets 271 * @packet_type: batman-adv packet type, part of the general header 272 * @version: batman-adv protocol version, part of the genereal header 273 * @ttl: time to live for this packet, part of the genereal header 274 * @msg_type: ICMP packet type 275 * @dst: address of the destination node 276 * @orig: address of the source node 277 * @uid: local ICMP socket identifier 278 * @align: not used - useful for alignment purposes only 279 * 280 * This structure is used for ICMP packets parsing only and it is never sent 281 * over the wire. The alignment field at the end is there to ensure that 282 * members are padded the same way as they are in real packets. 283 */ 284 struct batadv_icmp_header { 285 __u8 packet_type; 286 __u8 version; 287 __u8 ttl; 288 __u8 msg_type; /* see ICMP message types above */ 289 __u8 dst[ETH_ALEN]; 290 __u8 orig[ETH_ALEN]; 291 __u8 uid; 292 __u8 align[3]; 293 }; 294 295 /** 296 * struct batadv_icmp_packet - ICMP packet 297 * @packet_type: batman-adv packet type, part of the general header 298 * @version: batman-adv protocol version, part of the genereal header 299 * @ttl: time to live for this packet, part of the genereal header 300 * @msg_type: ICMP packet type 301 * @dst: address of the destination node 302 * @orig: address of the source node 303 * @uid: local ICMP socket identifier 304 * @reserved: not used - useful for alignment 305 * @seqno: ICMP sequence number 306 */ 307 struct batadv_icmp_packet { 308 __u8 packet_type; 309 __u8 version; 310 __u8 ttl; 311 __u8 msg_type; /* see ICMP message types above */ 312 __u8 dst[ETH_ALEN]; 313 __u8 orig[ETH_ALEN]; 314 __u8 uid; 315 __u8 reserved; 316 __be16 seqno; 317 }; 318 319 /** 320 * struct batadv_icmp_tp_packet - ICMP TP Meter packet 321 * @packet_type: batman-adv packet type, part of the general header 322 * @version: batman-adv protocol version, part of the genereal header 323 * @ttl: time to live for this packet, part of the genereal header 324 * @msg_type: ICMP packet type 325 * @dst: address of the destination node 326 * @orig: address of the source node 327 * @uid: local ICMP socket identifier 328 * @subtype: TP packet subtype (see batadv_icmp_tp_subtype) 329 * @session: TP session identifier 330 * @seqno: the TP sequence number 331 * @timestamp: time when the packet has been sent. This value is filled in a 332 * TP_MSG and echoed back in the next TP_ACK so that the sender can compute the 333 * RTT. Since it is read only by the host which wrote it, there is no need to 334 * store it using network order 335 */ 336 struct batadv_icmp_tp_packet { 337 __u8 packet_type; 338 __u8 version; 339 __u8 ttl; 340 __u8 msg_type; /* see ICMP message types above */ 341 __u8 dst[ETH_ALEN]; 342 __u8 orig[ETH_ALEN]; 343 __u8 uid; 344 __u8 subtype; 345 __u8 session[2]; 346 __be32 seqno; 347 __be32 timestamp; 348 }; 349 350 /** 351 * enum batadv_icmp_tp_subtype - ICMP TP Meter packet subtypes 352 * @BATADV_TP_MSG: Msg from sender to receiver 353 * @BATADV_TP_ACK: acknowledgment from receiver to sender 354 */ 355 enum batadv_icmp_tp_subtype { 356 BATADV_TP_MSG = 0, 357 BATADV_TP_ACK, 358 }; 359 360 #define BATADV_RR_LEN 16 361 362 /** 363 * struct batadv_icmp_packet_rr - ICMP RouteRecord packet 364 * @packet_type: batman-adv packet type, part of the general header 365 * @version: batman-adv protocol version, part of the genereal header 366 * @ttl: time to live for this packet, part of the genereal header 367 * @msg_type: ICMP packet type 368 * @dst: address of the destination node 369 * @orig: address of the source node 370 * @uid: local ICMP socket identifier 371 * @rr_cur: number of entries the rr array 372 * @seqno: ICMP sequence number 373 * @rr: route record array 374 */ 375 struct batadv_icmp_packet_rr { 376 __u8 packet_type; 377 __u8 version; 378 __u8 ttl; 379 __u8 msg_type; /* see ICMP message types above */ 380 __u8 dst[ETH_ALEN]; 381 __u8 orig[ETH_ALEN]; 382 __u8 uid; 383 __u8 rr_cur; 384 __be16 seqno; 385 __u8 rr[BATADV_RR_LEN][ETH_ALEN]; 386 }; 387 388 #define BATADV_ICMP_MAX_PACKET_SIZE sizeof(struct batadv_icmp_packet_rr) 389 390 /* All packet headers in front of an ethernet header have to be completely 391 * divisible by 2 but not by 4 to make the payload after the ethernet 392 * header again 4 bytes boundary aligned. 393 * 394 * A packing of 2 is necessary to avoid extra padding at the end of the struct 395 * caused by a structure member which is larger than two bytes. Otherwise 396 * the structure would not fulfill the previously mentioned rule to avoid the 397 * misalignment of the payload after the ethernet header. It may also lead to 398 * leakage of information when the padding it not initialized before sending. 399 */ 400 401 /** 402 * struct batadv_unicast_packet - unicast packet for network payload 403 * @packet_type: batman-adv packet type, part of the general header 404 * @version: batman-adv protocol version, part of the genereal header 405 * @ttl: time to live for this packet, part of the genereal header 406 * @ttvn: translation table version number 407 * @dest: originator destination of the unicast packet 408 */ 409 struct batadv_unicast_packet { 410 __u8 packet_type; 411 __u8 version; 412 __u8 ttl; 413 __u8 ttvn; /* destination translation table version number */ 414 __u8 dest[ETH_ALEN]; 415 /* "4 bytes boundary + 2 bytes" long to make the payload after the 416 * following ethernet header again 4 bytes boundary aligned 417 */ 418 }; 419 420 /** 421 * struct batadv_unicast_4addr_packet - extended unicast packet 422 * @u: common unicast packet header 423 * @src: address of the source 424 * @subtype: packet subtype 425 * @reserved: reserved byte for alignment 426 */ 427 struct batadv_unicast_4addr_packet { 428 struct batadv_unicast_packet u; 429 __u8 src[ETH_ALEN]; 430 __u8 subtype; 431 __u8 reserved; 432 /* "4 bytes boundary + 2 bytes" long to make the payload after the 433 * following ethernet header again 4 bytes boundary aligned 434 */ 435 }; 436 437 /** 438 * struct batadv_frag_packet - fragmented packet 439 * @packet_type: batman-adv packet type, part of the general header 440 * @version: batman-adv protocol version, part of the genereal header 441 * @ttl: time to live for this packet, part of the genereal header 442 * @dest: final destination used when routing fragments 443 * @orig: originator of the fragment used when merging the packet 444 * @no: fragment number within this sequence 445 * @priority: priority of frame, from ToS IP precedence or 802.1p 446 * @reserved: reserved byte for alignment 447 * @seqno: sequence identification 448 * @total_size: size of the merged packet 449 */ 450 struct batadv_frag_packet { 451 __u8 packet_type; 452 __u8 version; /* batman version field */ 453 __u8 ttl; 454 #if defined(__BIG_ENDIAN_BITFIELD) 455 __u8 no:4; 456 __u8 priority:3; 457 __u8 reserved:1; 458 #elif defined(__LITTLE_ENDIAN_BITFIELD) 459 __u8 reserved:1; 460 __u8 priority:3; 461 __u8 no:4; 462 #else 463 #error "unknown bitfield endianness" 464 #endif 465 __u8 dest[ETH_ALEN]; 466 __u8 orig[ETH_ALEN]; 467 __be16 seqno; 468 __be16 total_size; 469 }; 470 471 /** 472 * struct batadv_bcast_packet - broadcast packet for network payload 473 * @packet_type: batman-adv packet type, part of the general header 474 * @version: batman-adv protocol version, part of the genereal header 475 * @ttl: time to live for this packet, part of the genereal header 476 * @reserved: reserved byte for alignment 477 * @seqno: sequence identification 478 * @orig: originator of the broadcast packet 479 */ 480 struct batadv_bcast_packet { 481 __u8 packet_type; 482 __u8 version; /* batman version field */ 483 __u8 ttl; 484 __u8 reserved; 485 __be32 seqno; 486 __u8 orig[ETH_ALEN]; 487 /* "4 bytes boundary + 2 bytes" long to make the payload after the 488 * following ethernet header again 4 bytes boundary aligned 489 */ 490 }; 491 492 /** 493 * struct batadv_coded_packet - network coded packet 494 * @packet_type: batman-adv packet type, part of the general header 495 * @version: batman-adv protocol version, part of the genereal header 496 * @ttl: time to live for this packet, part of the genereal header 497 * @first_source: original source of first included packet 498 * @first_orig_dest: original destinal of first included packet 499 * @first_crc: checksum of first included packet 500 * @first_ttvn: tt-version number of first included packet 501 * @second_ttl: ttl of second packet 502 * @second_dest: second receiver of this coded packet 503 * @second_source: original source of second included packet 504 * @second_orig_dest: original destination of second included packet 505 * @second_crc: checksum of second included packet 506 * @second_ttvn: tt version number of second included packet 507 * @coded_len: length of network coded part of the payload 508 */ 509 struct batadv_coded_packet { 510 __u8 packet_type; 511 __u8 version; /* batman version field */ 512 __u8 ttl; 513 __u8 first_ttvn; 514 /* __u8 first_dest[ETH_ALEN]; - saved in mac header destination */ 515 __u8 first_source[ETH_ALEN]; 516 __u8 first_orig_dest[ETH_ALEN]; 517 __be32 first_crc; 518 __u8 second_ttl; 519 __u8 second_ttvn; 520 __u8 second_dest[ETH_ALEN]; 521 __u8 second_source[ETH_ALEN]; 522 __u8 second_orig_dest[ETH_ALEN]; 523 __be32 second_crc; 524 __be16 coded_len; 525 }; 526 527 /** 528 * struct batadv_unicast_tvlv_packet - generic unicast packet with tvlv payload 529 * @packet_type: batman-adv packet type, part of the general header 530 * @version: batman-adv protocol version, part of the genereal header 531 * @ttl: time to live for this packet, part of the genereal header 532 * @reserved: reserved field (for packet alignment) 533 * @src: address of the source 534 * @dst: address of the destination 535 * @tvlv_len: length of tvlv data following the unicast tvlv header 536 * @align: 2 bytes to align the header to a 4 byte boundary 537 */ 538 struct batadv_unicast_tvlv_packet { 539 __u8 packet_type; 540 __u8 version; /* batman version field */ 541 __u8 ttl; 542 __u8 reserved; 543 __u8 dst[ETH_ALEN]; 544 __u8 src[ETH_ALEN]; 545 __be16 tvlv_len; 546 __u16 align; 547 }; 548 549 /** 550 * struct batadv_tvlv_hdr - base tvlv header struct 551 * @type: tvlv container type (see batadv_tvlv_type) 552 * @version: tvlv container version 553 * @len: tvlv container length 554 */ 555 struct batadv_tvlv_hdr { 556 __u8 type; 557 __u8 version; 558 __be16 len; 559 }; 560 561 /** 562 * struct batadv_tvlv_gateway_data - gateway data propagated through gw tvlv 563 * container 564 * @bandwidth_down: advertised uplink download bandwidth 565 * @bandwidth_up: advertised uplink upload bandwidth 566 */ 567 struct batadv_tvlv_gateway_data { 568 __be32 bandwidth_down; 569 __be32 bandwidth_up; 570 }; 571 572 /** 573 * struct batadv_tvlv_tt_data - tt data propagated through the tt tvlv container 574 * @flags: translation table flags (see batadv_tt_data_flags) 575 * @ttvn: translation table version number 576 * @num_vlan: number of announced VLANs. In the TVLV this struct is followed by 577 * one batadv_tvlv_tt_vlan_data object per announced vlan 578 */ 579 struct batadv_tvlv_tt_data { 580 __u8 flags; 581 __u8 ttvn; 582 __be16 num_vlan; 583 }; 584 585 /** 586 * struct batadv_tvlv_tt_vlan_data - vlan specific tt data propagated through 587 * the tt tvlv container 588 * @crc: crc32 checksum of the entries belonging to this vlan 589 * @vid: vlan identifier 590 * @reserved: unused, useful for alignment purposes 591 */ 592 struct batadv_tvlv_tt_vlan_data { 593 __be32 crc; 594 __be16 vid; 595 __u16 reserved; 596 }; 597 598 /** 599 * struct batadv_tvlv_tt_change - translation table diff data 600 * @flags: status indicators concerning the non-mesh client (see 601 * batadv_tt_client_flags) 602 * @reserved: reserved field - useful for alignment purposes only 603 * @addr: mac address of non-mesh client that triggered this tt change 604 * @vid: VLAN identifier 605 */ 606 struct batadv_tvlv_tt_change { 607 __u8 flags; 608 __u8 reserved[3]; 609 __u8 addr[ETH_ALEN]; 610 __be16 vid; 611 }; 612 613 /** 614 * struct batadv_tvlv_roam_adv - roaming advertisement 615 * @client: mac address of roaming client 616 * @vid: VLAN identifier 617 */ 618 struct batadv_tvlv_roam_adv { 619 __u8 client[ETH_ALEN]; 620 __be16 vid; 621 }; 622 623 /** 624 * struct batadv_tvlv_mcast_data - payload of a multicast tvlv 625 * @flags: multicast flags announced by the orig node 626 * @reserved: reserved field 627 */ 628 struct batadv_tvlv_mcast_data { 629 __u8 flags; 630 __u8 reserved[3]; 631 }; 632 633 #pragma pack() 634 635 #endif /* _UAPI_LINUX_BATADV_PACKET_H_ */ 636