1 /* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) */ 2 /* Copyright (C) B.A.T.M.A.N. contributors: 3 * 4 * Marek Lindner, Simon Wunderlich 5 */ 6 7 #ifndef _UAPI_LINUX_BATADV_PACKET_H_ 8 #define _UAPI_LINUX_BATADV_PACKET_H_ 9 10 #include <asm/byteorder.h> 11 #include <linux/if_ether.h> 12 #include <linux/types.h> 13 14 /** 15 * batadv_tp_is_error() - Check throughput meter return code for error 16 * @n: throughput meter return code 17 * 18 * Return: 0 when not error was detected, != 0 otherwise 19 */ 20 #define batadv_tp_is_error(n) ((__u8)(n) > 127 ? 1 : 0) 21 22 /** 23 * enum batadv_packettype - types for batman-adv encapsulated packets 24 * @BATADV_IV_OGM: originator messages for B.A.T.M.A.N. IV 25 * @BATADV_BCAST: broadcast packets carrying broadcast payload 26 * @BATADV_CODED: network coded packets 27 * @BATADV_ELP: echo location packets for B.A.T.M.A.N. V 28 * @BATADV_OGM2: originator messages for B.A.T.M.A.N. V 29 * @BATADV_MCAST: multicast packet with multiple destination addresses 30 * 31 * @BATADV_UNICAST: unicast packets carrying unicast payload traffic 32 * @BATADV_UNICAST_FRAG: unicast packets carrying a fragment of the original 33 * payload packet 34 * @BATADV_UNICAST_4ADDR: unicast packet including the originator address of 35 * the sender 36 * @BATADV_ICMP: unicast packet like IP ICMP used for ping or traceroute 37 * @BATADV_UNICAST_TVLV: unicast packet carrying TVLV containers 38 */ 39 enum batadv_packettype { 40 /* 0x00 - 0x3f: local packets or special rules for handling */ 41 BATADV_IV_OGM = 0x00, 42 BATADV_BCAST = 0x01, 43 BATADV_CODED = 0x02, 44 BATADV_ELP = 0x03, 45 BATADV_OGM2 = 0x04, 46 BATADV_MCAST = 0x05, 47 /* 0x40 - 0x7f: unicast */ 48 #define BATADV_UNICAST_MIN 0x40 49 BATADV_UNICAST = 0x40, 50 BATADV_UNICAST_FRAG = 0x41, 51 BATADV_UNICAST_4ADDR = 0x42, 52 BATADV_ICMP = 0x43, 53 BATADV_UNICAST_TVLV = 0x44, 54 #define BATADV_UNICAST_MAX 0x7f 55 /* 0x80 - 0xff: reserved */ 56 }; 57 58 /** 59 * enum batadv_subtype - packet subtype for unicast4addr 60 * @BATADV_P_DATA: user payload 61 * @BATADV_P_DAT_DHT_GET: DHT request message 62 * @BATADV_P_DAT_DHT_PUT: DHT store message 63 * @BATADV_P_DAT_CACHE_REPLY: ARP reply generated by DAT 64 */ 65 enum batadv_subtype { 66 BATADV_P_DATA = 0x01, 67 BATADV_P_DAT_DHT_GET = 0x02, 68 BATADV_P_DAT_DHT_PUT = 0x03, 69 BATADV_P_DAT_CACHE_REPLY = 0x04, 70 }; 71 72 /* this file is included by batctl which needs these defines */ 73 #define BATADV_COMPAT_VERSION 15 74 75 /** 76 * enum batadv_iv_flags - flags used in B.A.T.M.A.N. IV OGM packets 77 * @BATADV_NOT_BEST_NEXT_HOP: flag is set when the ogm packet is forwarded and 78 * was previously received from someone other than the best neighbor. 79 * @BATADV_PRIMARIES_FIRST_HOP: flag unused. 80 * @BATADV_DIRECTLINK: flag is for the first hop or if rebroadcasted from a 81 * one hop neighbor on the interface where it was originally received. 82 */ 83 enum batadv_iv_flags { 84 BATADV_NOT_BEST_NEXT_HOP = 1UL << 0, 85 BATADV_PRIMARIES_FIRST_HOP = 1UL << 1, 86 BATADV_DIRECTLINK = 1UL << 2, 87 }; 88 89 /** 90 * enum batadv_icmp_packettype - ICMP message types 91 * @BATADV_ECHO_REPLY: success reply to BATADV_ECHO_REQUEST 92 * @BATADV_DESTINATION_UNREACHABLE: failure when route to destination not found 93 * @BATADV_ECHO_REQUEST: request BATADV_ECHO_REPLY from destination 94 * @BATADV_TTL_EXCEEDED: error after BATADV_ECHO_REQUEST traversed too many hops 95 * @BATADV_PARAMETER_PROBLEM: return code for malformed messages 96 * @BATADV_TP: throughput meter packet 97 */ 98 enum batadv_icmp_packettype { 99 BATADV_ECHO_REPLY = 0, 100 BATADV_DESTINATION_UNREACHABLE = 3, 101 BATADV_ECHO_REQUEST = 8, 102 BATADV_TTL_EXCEEDED = 11, 103 BATADV_PARAMETER_PROBLEM = 12, 104 BATADV_TP = 15, 105 }; 106 107 /** 108 * enum batadv_mcast_flags - flags for multicast capabilities and settings 109 * @BATADV_MCAST_WANT_ALL_UNSNOOPABLES: we want all packets destined for 110 * 224.0.0.0/24 or ff02::1 111 * @BATADV_MCAST_WANT_ALL_IPV4: we want all IPv4 multicast packets 112 * (both link-local and routable ones) 113 * @BATADV_MCAST_WANT_ALL_IPV6: we want all IPv6 multicast packets 114 * (both link-local and routable ones) 115 * @BATADV_MCAST_WANT_NO_RTR4: we have no IPv4 multicast router and therefore 116 * only need routable IPv4 multicast packets we signed up for explicitly 117 * @BATADV_MCAST_WANT_NO_RTR6: we have no IPv6 multicast router and therefore 118 * only need routable IPv6 multicast packets we signed up for explicitly 119 */ 120 enum batadv_mcast_flags { 121 BATADV_MCAST_WANT_ALL_UNSNOOPABLES = 1UL << 0, 122 BATADV_MCAST_WANT_ALL_IPV4 = 1UL << 1, 123 BATADV_MCAST_WANT_ALL_IPV6 = 1UL << 2, 124 BATADV_MCAST_WANT_NO_RTR4 = 1UL << 3, 125 BATADV_MCAST_WANT_NO_RTR6 = 1UL << 4, 126 }; 127 128 /* tt data subtypes */ 129 #define BATADV_TT_DATA_TYPE_MASK 0x0F 130 131 /** 132 * enum batadv_tt_data_flags - flags for tt data tvlv 133 * @BATADV_TT_OGM_DIFF: TT diff propagated through OGM 134 * @BATADV_TT_REQUEST: TT request message 135 * @BATADV_TT_RESPONSE: TT response message 136 * @BATADV_TT_FULL_TABLE: contains full table to replace existing table 137 */ 138 enum batadv_tt_data_flags { 139 BATADV_TT_OGM_DIFF = 1UL << 0, 140 BATADV_TT_REQUEST = 1UL << 1, 141 BATADV_TT_RESPONSE = 1UL << 2, 142 BATADV_TT_FULL_TABLE = 1UL << 4, 143 }; 144 145 /** 146 * enum batadv_vlan_flags - flags for the four MSB of any vlan ID field 147 * @BATADV_VLAN_HAS_TAG: whether the field contains a valid vlan tag or not 148 */ 149 enum batadv_vlan_flags { 150 BATADV_VLAN_HAS_TAG = 1UL << 15, 151 }; 152 153 /** 154 * enum batadv_bla_claimframe - claim frame types for the bridge loop avoidance 155 * @BATADV_CLAIM_TYPE_CLAIM: claim of a client mac address 156 * @BATADV_CLAIM_TYPE_UNCLAIM: unclaim of a client mac address 157 * @BATADV_CLAIM_TYPE_ANNOUNCE: announcement of backbone with current crc 158 * @BATADV_CLAIM_TYPE_REQUEST: request of full claim table 159 * @BATADV_CLAIM_TYPE_LOOPDETECT: mesh-traversing loop detect packet 160 */ 161 enum batadv_bla_claimframe { 162 BATADV_CLAIM_TYPE_CLAIM = 0x00, 163 BATADV_CLAIM_TYPE_UNCLAIM = 0x01, 164 BATADV_CLAIM_TYPE_ANNOUNCE = 0x02, 165 BATADV_CLAIM_TYPE_REQUEST = 0x03, 166 BATADV_CLAIM_TYPE_LOOPDETECT = 0x04, 167 }; 168 169 /** 170 * enum batadv_tvlv_type - tvlv type definitions 171 * @BATADV_TVLV_GW: gateway tvlv 172 * @BATADV_TVLV_DAT: distributed arp table tvlv 173 * @BATADV_TVLV_NC: network coding tvlv 174 * @BATADV_TVLV_TT: translation table tvlv 175 * @BATADV_TVLV_ROAM: roaming advertisement tvlv 176 * @BATADV_TVLV_MCAST: multicast capability tvlv 177 */ 178 enum batadv_tvlv_type { 179 BATADV_TVLV_GW = 0x01, 180 BATADV_TVLV_DAT = 0x02, 181 BATADV_TVLV_NC = 0x03, 182 BATADV_TVLV_TT = 0x04, 183 BATADV_TVLV_ROAM = 0x05, 184 BATADV_TVLV_MCAST = 0x06, 185 }; 186 187 #pragma pack(2) 188 /* the destination hardware field in the ARP frame is used to 189 * transport the claim type and the group id 190 */ 191 struct batadv_bla_claim_dst { 192 __u8 magic[3]; /* FF:43:05 */ 193 __u8 type; /* bla_claimframe */ 194 __be16 group; /* group id */ 195 }; 196 197 /** 198 * struct batadv_ogm_packet - ogm (routing protocol) packet 199 * @packet_type: batman-adv packet type, part of the general header 200 * @version: batman-adv protocol version, part of the general header 201 * @ttl: time to live for this packet, part of the general header 202 * @flags: contains routing relevant flags - see enum batadv_iv_flags 203 * @seqno: sequence identification 204 * @orig: address of the source node 205 * @prev_sender: address of the previous sender 206 * @reserved: reserved byte for alignment 207 * @tq: transmission quality 208 * @tvlv_len: length of tvlv data following the ogm header 209 */ 210 struct batadv_ogm_packet { 211 __u8 packet_type; 212 __u8 version; 213 __u8 ttl; 214 __u8 flags; 215 __be32 seqno; 216 __u8 orig[ETH_ALEN]; 217 __u8 prev_sender[ETH_ALEN]; 218 __u8 reserved; 219 __u8 tq; 220 __be16 tvlv_len; 221 }; 222 223 #define BATADV_OGM_HLEN sizeof(struct batadv_ogm_packet) 224 225 /** 226 * struct batadv_ogm2_packet - ogm2 (routing protocol) packet 227 * @packet_type: batman-adv packet type, part of the general header 228 * @version: batman-adv protocol version, part of the general header 229 * @ttl: time to live for this packet, part of the general header 230 * @flags: reserved for routing relevant flags - currently always 0 231 * @seqno: sequence number 232 * @orig: originator mac address 233 * @tvlv_len: length of the appended tvlv buffer (in bytes) 234 * @throughput: the currently flooded path throughput 235 */ 236 struct batadv_ogm2_packet { 237 __u8 packet_type; 238 __u8 version; 239 __u8 ttl; 240 __u8 flags; 241 __be32 seqno; 242 __u8 orig[ETH_ALEN]; 243 __be16 tvlv_len; 244 __be32 throughput; 245 }; 246 247 #define BATADV_OGM2_HLEN sizeof(struct batadv_ogm2_packet) 248 249 /** 250 * struct batadv_elp_packet - elp (neighbor discovery) packet 251 * @packet_type: batman-adv packet type, part of the general header 252 * @version: batman-adv protocol version, part of the general header 253 * @orig: originator mac address 254 * @seqno: sequence number 255 * @elp_interval: currently used ELP sending interval in ms 256 */ 257 struct batadv_elp_packet { 258 __u8 packet_type; 259 __u8 version; 260 __u8 orig[ETH_ALEN]; 261 __be32 seqno; 262 __be32 elp_interval; 263 }; 264 265 #define BATADV_ELP_HLEN sizeof(struct batadv_elp_packet) 266 267 /** 268 * struct batadv_icmp_header - common members among all the ICMP packets 269 * @packet_type: batman-adv packet type, part of the general header 270 * @version: batman-adv protocol version, part of the general header 271 * @ttl: time to live for this packet, part of the general header 272 * @msg_type: ICMP packet type 273 * @dst: address of the destination node 274 * @orig: address of the source node 275 * @uid: local ICMP socket identifier 276 * @align: not used - useful for alignment purposes only 277 * 278 * This structure is used for ICMP packet parsing only and it is never sent 279 * over the wire. The alignment field at the end is there to ensure that 280 * members are padded the same way as they are in real packets. 281 */ 282 struct batadv_icmp_header { 283 __u8 packet_type; 284 __u8 version; 285 __u8 ttl; 286 __u8 msg_type; /* see ICMP message types above */ 287 __u8 dst[ETH_ALEN]; 288 __u8 orig[ETH_ALEN]; 289 __u8 uid; 290 __u8 align[3]; 291 }; 292 293 /** 294 * struct batadv_icmp_packet - ICMP packet 295 * @packet_type: batman-adv packet type, part of the general header 296 * @version: batman-adv protocol version, part of the general header 297 * @ttl: time to live for this packet, part of the general header 298 * @msg_type: ICMP packet type 299 * @dst: address of the destination node 300 * @orig: address of the source node 301 * @uid: local ICMP socket identifier 302 * @reserved: not used - useful for alignment 303 * @seqno: ICMP sequence number 304 */ 305 struct batadv_icmp_packet { 306 __u8 packet_type; 307 __u8 version; 308 __u8 ttl; 309 __u8 msg_type; /* see ICMP message types above */ 310 __u8 dst[ETH_ALEN]; 311 __u8 orig[ETH_ALEN]; 312 __u8 uid; 313 __u8 reserved; 314 __be16 seqno; 315 }; 316 317 /** 318 * struct batadv_icmp_tp_packet - ICMP TP Meter packet 319 * @packet_type: batman-adv packet type, part of the general header 320 * @version: batman-adv protocol version, part of the general header 321 * @ttl: time to live for this packet, part of the general header 322 * @msg_type: ICMP packet type 323 * @dst: address of the destination node 324 * @orig: address of the source node 325 * @uid: local ICMP socket identifier 326 * @subtype: TP packet subtype (see batadv_icmp_tp_subtype) 327 * @session: TP session identifier 328 * @seqno: the TP sequence number 329 * @timestamp: time when the packet has been sent. This value is filled in a 330 * TP_MSG and echoed back in the next TP_ACK so that the sender can compute the 331 * RTT. Since it is read only by the host which wrote it, there is no need to 332 * store it using network order 333 */ 334 struct batadv_icmp_tp_packet { 335 __u8 packet_type; 336 __u8 version; 337 __u8 ttl; 338 __u8 msg_type; /* see ICMP message types above */ 339 __u8 dst[ETH_ALEN]; 340 __u8 orig[ETH_ALEN]; 341 __u8 uid; 342 __u8 subtype; 343 __u8 session[2]; 344 __be32 seqno; 345 __be32 timestamp; 346 }; 347 348 /** 349 * enum batadv_icmp_tp_subtype - ICMP TP Meter packet subtypes 350 * @BATADV_TP_MSG: Msg from sender to receiver 351 * @BATADV_TP_ACK: acknowledgment from receiver to sender 352 */ 353 enum batadv_icmp_tp_subtype { 354 BATADV_TP_MSG = 0, 355 BATADV_TP_ACK, 356 }; 357 358 #define BATADV_RR_LEN 16 359 360 /** 361 * struct batadv_icmp_packet_rr - ICMP RouteRecord packet 362 * @packet_type: batman-adv packet type, part of the general header 363 * @version: batman-adv protocol version, part of the general header 364 * @ttl: time to live for this packet, part of the general header 365 * @msg_type: ICMP packet type 366 * @dst: address of the destination node 367 * @orig: address of the source node 368 * @uid: local ICMP socket identifier 369 * @rr_cur: number of entries the rr array 370 * @seqno: ICMP sequence number 371 * @rr: route record array 372 */ 373 struct batadv_icmp_packet_rr { 374 __u8 packet_type; 375 __u8 version; 376 __u8 ttl; 377 __u8 msg_type; /* see ICMP message types above */ 378 __u8 dst[ETH_ALEN]; 379 __u8 orig[ETH_ALEN]; 380 __u8 uid; 381 __u8 rr_cur; 382 __be16 seqno; 383 __u8 rr[BATADV_RR_LEN][ETH_ALEN]; 384 }; 385 386 #define BATADV_ICMP_MAX_PACKET_SIZE sizeof(struct batadv_icmp_packet_rr) 387 388 /* All packet headers in front of an ethernet header have to be completely 389 * divisible by 2 but not by 4 to make the payload after the ethernet 390 * header again 4 bytes boundary aligned. 391 * 392 * A packing of 2 is necessary to avoid extra padding at the end of the struct 393 * caused by a structure member which is larger than two bytes. Otherwise 394 * the structure would not fulfill the previously mentioned rule to avoid the 395 * misalignment of the payload after the ethernet header. It may also lead to 396 * leakage of information when the padding it not initialized before sending. 397 */ 398 399 /** 400 * struct batadv_unicast_packet - unicast packet for network payload 401 * @packet_type: batman-adv packet type, part of the general header 402 * @version: batman-adv protocol version, part of the general header 403 * @ttl: time to live for this packet, part of the general header 404 * @ttvn: translation table version number 405 * @dest: originator destination of the unicast packet 406 */ 407 struct batadv_unicast_packet { 408 __u8 packet_type; 409 __u8 version; 410 __u8 ttl; 411 __u8 ttvn; /* destination translation table version number */ 412 __u8 dest[ETH_ALEN]; 413 /* "4 bytes boundary + 2 bytes" long to make the payload after the 414 * following ethernet header again 4 bytes boundary aligned 415 */ 416 }; 417 418 /** 419 * struct batadv_unicast_4addr_packet - extended unicast packet 420 * @u: common unicast packet header 421 * @src: address of the source 422 * @subtype: packet subtype 423 * @reserved: reserved byte for alignment 424 */ 425 struct batadv_unicast_4addr_packet { 426 struct batadv_unicast_packet u; 427 __u8 src[ETH_ALEN]; 428 __u8 subtype; 429 __u8 reserved; 430 /* "4 bytes boundary + 2 bytes" long to make the payload after the 431 * following ethernet header again 4 bytes boundary aligned 432 */ 433 }; 434 435 /** 436 * struct batadv_frag_packet - fragmented packet 437 * @packet_type: batman-adv packet type, part of the general header 438 * @version: batman-adv protocol version, part of the general header 439 * @ttl: time to live for this packet, part of the general header 440 * @dest: final destination used when routing fragments 441 * @orig: originator of the fragment used when merging the packet 442 * @no: fragment number within this sequence 443 * @priority: priority of frame, from ToS IP precedence or 802.1p 444 * @reserved: reserved byte for alignment 445 * @seqno: sequence identification 446 * @total_size: size of the merged packet 447 */ 448 struct batadv_frag_packet { 449 __u8 packet_type; 450 __u8 version; /* batman version field */ 451 __u8 ttl; 452 #if defined(__BIG_ENDIAN_BITFIELD) 453 __u8 no:4; 454 __u8 priority:3; 455 __u8 reserved:1; 456 #elif defined(__LITTLE_ENDIAN_BITFIELD) 457 __u8 reserved:1; 458 __u8 priority:3; 459 __u8 no:4; 460 #else 461 #error "unknown bitfield endianness" 462 #endif 463 __u8 dest[ETH_ALEN]; 464 __u8 orig[ETH_ALEN]; 465 __be16 seqno; 466 __be16 total_size; 467 }; 468 469 /** 470 * struct batadv_bcast_packet - broadcast packet for network payload 471 * @packet_type: batman-adv packet type, part of the general header 472 * @version: batman-adv protocol version, part of the general header 473 * @ttl: time to live for this packet, part of the general header 474 * @reserved: reserved byte for alignment 475 * @seqno: sequence identification 476 * @orig: originator of the broadcast packet 477 */ 478 struct batadv_bcast_packet { 479 __u8 packet_type; 480 __u8 version; /* batman version field */ 481 __u8 ttl; 482 __u8 reserved; 483 __be32 seqno; 484 __u8 orig[ETH_ALEN]; 485 /* "4 bytes boundary + 2 bytes" long to make the payload after the 486 * following ethernet header again 4 bytes boundary aligned 487 */ 488 }; 489 490 /** 491 * struct batadv_coded_packet - network coded packet 492 * @packet_type: batman-adv packet type, part of the general header 493 * @version: batman-adv protocol version, part of the general header 494 * @ttl: time to live for this packet, part of the general header 495 * @first_source: original source of first included packet 496 * @first_orig_dest: original destination of first included packet 497 * @first_crc: checksum of first included packet 498 * @first_ttvn: tt-version number of first included packet 499 * @second_ttl: ttl of second packet 500 * @second_dest: second receiver of this coded packet 501 * @second_source: original source of second included packet 502 * @second_orig_dest: original destination of second included packet 503 * @second_crc: checksum of second included packet 504 * @second_ttvn: tt version number of second included packet 505 * @coded_len: length of network coded part of the payload 506 */ 507 struct batadv_coded_packet { 508 __u8 packet_type; 509 __u8 version; /* batman version field */ 510 __u8 ttl; 511 __u8 first_ttvn; 512 /* __u8 first_dest[ETH_ALEN]; - saved in mac header destination */ 513 __u8 first_source[ETH_ALEN]; 514 __u8 first_orig_dest[ETH_ALEN]; 515 __be32 first_crc; 516 __u8 second_ttl; 517 __u8 second_ttvn; 518 __u8 second_dest[ETH_ALEN]; 519 __u8 second_source[ETH_ALEN]; 520 __u8 second_orig_dest[ETH_ALEN]; 521 __be32 second_crc; 522 __be16 coded_len; 523 }; 524 525 /** 526 * struct batadv_unicast_tvlv_packet - generic unicast packet with tvlv payload 527 * @packet_type: batman-adv packet type, part of the general header 528 * @version: batman-adv protocol version, part of the general header 529 * @ttl: time to live for this packet, part of the general header 530 * @reserved: reserved field (for packet alignment) 531 * @src: address of the source 532 * @dst: address of the destination 533 * @tvlv_len: length of tvlv data following the unicast tvlv header 534 * @align: 2 bytes to align the header to a 4 byte boundary 535 */ 536 struct batadv_unicast_tvlv_packet { 537 __u8 packet_type; 538 __u8 version; /* batman version field */ 539 __u8 ttl; 540 __u8 reserved; 541 __u8 dst[ETH_ALEN]; 542 __u8 src[ETH_ALEN]; 543 __be16 tvlv_len; 544 __u16 align; 545 }; 546 547 /** 548 * struct batadv_tvlv_hdr - base tvlv header struct 549 * @type: tvlv container type (see batadv_tvlv_type) 550 * @version: tvlv container version 551 * @len: tvlv container length 552 */ 553 struct batadv_tvlv_hdr { 554 __u8 type; 555 __u8 version; 556 __be16 len; 557 }; 558 559 /** 560 * struct batadv_tvlv_gateway_data - gateway data propagated through gw tvlv 561 * container 562 * @bandwidth_down: advertised uplink download bandwidth 563 * @bandwidth_up: advertised uplink upload bandwidth 564 */ 565 struct batadv_tvlv_gateway_data { 566 __be32 bandwidth_down; 567 __be32 bandwidth_up; 568 }; 569 570 /** 571 * struct batadv_tvlv_tt_data - tt data propagated through the tt tvlv container 572 * @flags: translation table flags (see batadv_tt_data_flags) 573 * @ttvn: translation table version number 574 * @num_vlan: number of announced VLANs. In the TVLV this struct is followed by 575 * one batadv_tvlv_tt_vlan_data object per announced vlan 576 */ 577 struct batadv_tvlv_tt_data { 578 __u8 flags; 579 __u8 ttvn; 580 __be16 num_vlan; 581 }; 582 583 /** 584 * struct batadv_tvlv_tt_vlan_data - vlan specific tt data propagated through 585 * the tt tvlv container 586 * @crc: crc32 checksum of the entries belonging to this vlan 587 * @vid: vlan identifier 588 * @reserved: unused, useful for alignment purposes 589 */ 590 struct batadv_tvlv_tt_vlan_data { 591 __be32 crc; 592 __be16 vid; 593 __u16 reserved; 594 }; 595 596 /** 597 * struct batadv_tvlv_tt_change - translation table diff data 598 * @flags: status indicators concerning the non-mesh client (see 599 * batadv_tt_client_flags) 600 * @reserved: reserved field - useful for alignment purposes only 601 * @addr: mac address of non-mesh client that triggered this tt change 602 * @vid: VLAN identifier 603 */ 604 struct batadv_tvlv_tt_change { 605 __u8 flags; 606 __u8 reserved[3]; 607 __u8 addr[ETH_ALEN]; 608 __be16 vid; 609 }; 610 611 /** 612 * struct batadv_tvlv_roam_adv - roaming advertisement 613 * @client: mac address of roaming client 614 * @vid: VLAN identifier 615 */ 616 struct batadv_tvlv_roam_adv { 617 __u8 client[ETH_ALEN]; 618 __be16 vid; 619 }; 620 621 /** 622 * struct batadv_tvlv_mcast_data - payload of a multicast tvlv 623 * @flags: multicast flags announced by the orig node 624 * @reserved: reserved field 625 */ 626 struct batadv_tvlv_mcast_data { 627 __u8 flags; 628 __u8 reserved[3]; 629 }; 630 631 #pragma pack() 632 633 #endif /* _UAPI_LINUX_BATADV_PACKET_H_ */ 634