1/*- 2 * Copyright (c) 2001 Atsushi Onoe 3 * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * $FreeBSD: stable/11/sys/net80211/ieee80211.h 330470 2018-03-05 08:37:08Z eadler $ 27 */ 28#ifndef _NET80211_IEEE80211_H_ 29#define _NET80211_IEEE80211_H_ 30 31/* 32 * 802.11 protocol definitions. 33 */ 34 35#define IEEE80211_ADDR_LEN 6 /* size of 802.11 address */ 36/* is 802.11 address multicast/broadcast? */ 37#define IEEE80211_IS_MULTICAST(_a) (*(_a) & 0x01) 38 39#ifdef _KERNEL 40extern const uint8_t ieee80211broadcastaddr[]; 41#endif 42 43typedef uint16_t ieee80211_seq; 44 45/* IEEE 802.11 PLCP header */ 46struct ieee80211_plcp_hdr { 47 uint16_t i_sfd; 48 uint8_t i_signal; 49 uint8_t i_service; 50 uint16_t i_length; 51 uint16_t i_crc; 52} __packed; 53 54#define IEEE80211_PLCP_SFD 0xF3A0 55#define IEEE80211_PLCP_SERVICE 0x00 56#define IEEE80211_PLCP_SERVICE_LOCKED 0x04 57#define IEEE80211_PLCL_SERVICE_PBCC 0x08 58#define IEEE80211_PLCP_SERVICE_LENEXT5 0x20 59#define IEEE80211_PLCP_SERVICE_LENEXT6 0x40 60#define IEEE80211_PLCP_SERVICE_LENEXT7 0x80 61 62/* 63 * generic definitions for IEEE 802.11 frames 64 */ 65struct ieee80211_frame { 66 uint8_t i_fc[2]; 67 uint8_t i_dur[2]; 68 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 69 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 70 uint8_t i_addr3[IEEE80211_ADDR_LEN]; 71 uint8_t i_seq[2]; 72 /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */ 73 /* see below */ 74} __packed; 75 76struct ieee80211_qosframe { 77 uint8_t i_fc[2]; 78 uint8_t i_dur[2]; 79 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 80 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 81 uint8_t i_addr3[IEEE80211_ADDR_LEN]; 82 uint8_t i_seq[2]; 83 uint8_t i_qos[2]; 84 /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */ 85 /* see below */ 86} __packed; 87 88struct ieee80211_qoscntl { 89 uint8_t i_qos[2]; 90}; 91 92struct ieee80211_frame_addr4 { 93 uint8_t i_fc[2]; 94 uint8_t i_dur[2]; 95 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 96 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 97 uint8_t i_addr3[IEEE80211_ADDR_LEN]; 98 uint8_t i_seq[2]; 99 uint8_t i_addr4[IEEE80211_ADDR_LEN]; 100} __packed; 101 102 103struct ieee80211_qosframe_addr4 { 104 uint8_t i_fc[2]; 105 uint8_t i_dur[2]; 106 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 107 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 108 uint8_t i_addr3[IEEE80211_ADDR_LEN]; 109 uint8_t i_seq[2]; 110 uint8_t i_addr4[IEEE80211_ADDR_LEN]; 111 uint8_t i_qos[2]; 112} __packed; 113 114#define IEEE80211_FC0_VERSION_MASK 0x03 115#define IEEE80211_FC0_VERSION_SHIFT 0 116#define IEEE80211_FC0_VERSION_0 0x00 117#define IEEE80211_FC0_TYPE_MASK 0x0c 118#define IEEE80211_FC0_TYPE_SHIFT 2 119#define IEEE80211_FC0_TYPE_MGT 0x00 120#define IEEE80211_FC0_TYPE_CTL 0x04 121#define IEEE80211_FC0_TYPE_DATA 0x08 122 123#define IEEE80211_FC0_SUBTYPE_MASK 0xf0 124#define IEEE80211_FC0_SUBTYPE_SHIFT 4 125/* for TYPE_MGT */ 126#define IEEE80211_FC0_SUBTYPE_ASSOC_REQ 0x00 127#define IEEE80211_FC0_SUBTYPE_ASSOC_RESP 0x10 128#define IEEE80211_FC0_SUBTYPE_REASSOC_REQ 0x20 129#define IEEE80211_FC0_SUBTYPE_REASSOC_RESP 0x30 130#define IEEE80211_FC0_SUBTYPE_PROBE_REQ 0x40 131#define IEEE80211_FC0_SUBTYPE_PROBE_RESP 0x50 132#define IEEE80211_FC0_SUBTYPE_TIMING_ADV 0x60 133#define IEEE80211_FC0_SUBTYPE_BEACON 0x80 134#define IEEE80211_FC0_SUBTYPE_ATIM 0x90 135#define IEEE80211_FC0_SUBTYPE_DISASSOC 0xa0 136#define IEEE80211_FC0_SUBTYPE_AUTH 0xb0 137#define IEEE80211_FC0_SUBTYPE_DEAUTH 0xc0 138#define IEEE80211_FC0_SUBTYPE_ACTION 0xd0 139#define IEEE80211_FC0_SUBTYPE_ACTION_NOACK 0xe0 140/* for TYPE_CTL */ 141#define IEEE80211_FC0_SUBTYPE_CONTROL_WRAP 0x70 142#define IEEE80211_FC0_SUBTYPE_BAR 0x80 143#define IEEE80211_FC0_SUBTYPE_BA 0x90 144#define IEEE80211_FC0_SUBTYPE_PS_POLL 0xa0 145#define IEEE80211_FC0_SUBTYPE_RTS 0xb0 146#define IEEE80211_FC0_SUBTYPE_CTS 0xc0 147#define IEEE80211_FC0_SUBTYPE_ACK 0xd0 148#define IEEE80211_FC0_SUBTYPE_CF_END 0xe0 149#define IEEE80211_FC0_SUBTYPE_CF_END_ACK 0xf0 150/* for TYPE_DATA (bit combination) */ 151#define IEEE80211_FC0_SUBTYPE_DATA 0x00 152#define IEEE80211_FC0_SUBTYPE_CF_ACK 0x10 153#define IEEE80211_FC0_SUBTYPE_CF_POLL 0x20 154#define IEEE80211_FC0_SUBTYPE_CF_ACPL 0x30 155#define IEEE80211_FC0_SUBTYPE_NODATA 0x40 156#define IEEE80211_FC0_SUBTYPE_CFACK 0x50 157#define IEEE80211_FC0_SUBTYPE_CFPOLL 0x60 158#define IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK 0x70 159#define IEEE80211_FC0_SUBTYPE_QOS 0x80 160#define IEEE80211_FC0_SUBTYPE_QOS_NULL 0xc0 161 162#define IEEE80211_FC1_DIR_MASK 0x03 163#define IEEE80211_FC1_DIR_NODS 0x00 /* STA->STA */ 164#define IEEE80211_FC1_DIR_TODS 0x01 /* STA->AP */ 165#define IEEE80211_FC1_DIR_FROMDS 0x02 /* AP ->STA */ 166#define IEEE80211_FC1_DIR_DSTODS 0x03 /* AP ->AP */ 167 168#define IEEE80211_IS_DSTODS(wh) \ 169 (((wh)->i_fc[1] & IEEE80211_FC1_DIR_MASK) == IEEE80211_FC1_DIR_DSTODS) 170 171#define IEEE80211_FC1_MORE_FRAG 0x04 172#define IEEE80211_FC1_RETRY 0x08 173#define IEEE80211_FC1_PWR_MGT 0x10 174#define IEEE80211_FC1_MORE_DATA 0x20 175#define IEEE80211_FC1_PROTECTED 0x40 176#define IEEE80211_FC1_ORDER 0x80 177 178#define IEEE80211_HAS_SEQ(type, subtype) \ 179 ((type) != IEEE80211_FC0_TYPE_CTL && \ 180 !((type) == IEEE80211_FC0_TYPE_DATA && \ 181 ((subtype) & IEEE80211_FC0_SUBTYPE_QOS_NULL) == \ 182 IEEE80211_FC0_SUBTYPE_QOS_NULL)) 183#define IEEE80211_SEQ_FRAG_MASK 0x000f 184#define IEEE80211_SEQ_FRAG_SHIFT 0 185#define IEEE80211_SEQ_SEQ_MASK 0xfff0 186#define IEEE80211_SEQ_SEQ_SHIFT 4 187#define IEEE80211_SEQ_RANGE 4096 188 189#define IEEE80211_SEQ_ADD(seq, incr) \ 190 (((seq) + (incr)) & (IEEE80211_SEQ_RANGE-1)) 191#define IEEE80211_SEQ_INC(seq) IEEE80211_SEQ_ADD(seq,1) 192#define IEEE80211_SEQ_SUB(a, b) \ 193 (((a) + IEEE80211_SEQ_RANGE - (b)) & (IEEE80211_SEQ_RANGE-1)) 194 195#define IEEE80211_SEQ_BA_RANGE 2048 /* 2^11 */ 196#define IEEE80211_SEQ_BA_BEFORE(a, b) \ 197 (IEEE80211_SEQ_SUB(b, a+1) < IEEE80211_SEQ_BA_RANGE-1) 198 199#define IEEE80211_NWID_LEN 32 200#define IEEE80211_MESHID_LEN 32 201 202#define IEEE80211_QOS_TXOP 0x00ff 203/* bit 8 is reserved */ 204#define IEEE80211_QOS_AMSDU 0x80 205#define IEEE80211_QOS_AMSDU_S 7 206#define IEEE80211_QOS_ACKPOLICY 0x60 207#define IEEE80211_QOS_ACKPOLICY_S 5 208#define IEEE80211_QOS_ACKPOLICY_NOACK 0x20 /* No ACK required */ 209#define IEEE80211_QOS_ACKPOLICY_BA 0x60 /* Block ACK */ 210#define IEEE80211_QOS_EOSP 0x10 /* EndOfService Period*/ 211#define IEEE80211_QOS_EOSP_S 4 212#define IEEE80211_QOS_TID 0x0f 213/* qos[1] byte used for all frames sent by mesh STAs in a mesh BSS */ 214#define IEEE80211_QOS_MC 0x01 /* Mesh control */ 215/* Mesh power save level*/ 216#define IEEE80211_QOS_MESH_PSL 0x02 217/* Mesh Receiver Service Period Initiated */ 218#define IEEE80211_QOS_RSPI 0x04 219/* bits 11 to 15 reserved */ 220 221/* does frame have QoS sequence control data */ 222#define IEEE80211_QOS_HAS_SEQ(wh) \ 223 (((wh)->i_fc[0] & \ 224 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == \ 225 (IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS)) 226 227/* 228 * WME/802.11e information element. 229 */ 230struct ieee80211_wme_info { 231 uint8_t wme_id; /* IEEE80211_ELEMID_VENDOR */ 232 uint8_t wme_len; /* length in bytes */ 233 uint8_t wme_oui[3]; /* 0x00, 0x50, 0xf2 */ 234 uint8_t wme_type; /* OUI type */ 235 uint8_t wme_subtype; /* OUI subtype */ 236 uint8_t wme_version; /* spec revision */ 237 uint8_t wme_info; /* QoS info */ 238} __packed; 239 240/* 241 * WME/802.11e Tspec Element 242 */ 243struct ieee80211_wme_tspec { 244 uint8_t ts_id; 245 uint8_t ts_len; 246 uint8_t ts_oui[3]; 247 uint8_t ts_oui_type; 248 uint8_t ts_oui_subtype; 249 uint8_t ts_version; 250 uint8_t ts_tsinfo[3]; 251 uint8_t ts_nom_msdu[2]; 252 uint8_t ts_max_msdu[2]; 253 uint8_t ts_min_svc[4]; 254 uint8_t ts_max_svc[4]; 255 uint8_t ts_inactv_intv[4]; 256 uint8_t ts_susp_intv[4]; 257 uint8_t ts_start_svc[4]; 258 uint8_t ts_min_rate[4]; 259 uint8_t ts_mean_rate[4]; 260 uint8_t ts_max_burst[4]; 261 uint8_t ts_min_phy[4]; 262 uint8_t ts_peak_rate[4]; 263 uint8_t ts_delay[4]; 264 uint8_t ts_surplus[2]; 265 uint8_t ts_medium_time[2]; 266} __packed; 267 268/* 269 * WME AC parameter field 270 */ 271struct ieee80211_wme_acparams { 272 uint8_t acp_aci_aifsn; 273 uint8_t acp_logcwminmax; 274 uint16_t acp_txop; 275} __packed; 276 277#define WME_NUM_AC 4 /* 4 AC categories */ 278#define WME_NUM_TID 16 /* 16 tids */ 279 280#define WME_PARAM_ACI 0x60 /* Mask for ACI field */ 281#define WME_PARAM_ACI_S 5 /* Shift for ACI field */ 282#define WME_PARAM_ACM 0x10 /* Mask for ACM bit */ 283#define WME_PARAM_ACM_S 4 /* Shift for ACM bit */ 284#define WME_PARAM_AIFSN 0x0f /* Mask for aifsn field */ 285#define WME_PARAM_AIFSN_S 0 /* Shift for aifsn field */ 286#define WME_PARAM_LOGCWMIN 0x0f /* Mask for CwMin field (in log) */ 287#define WME_PARAM_LOGCWMIN_S 0 /* Shift for CwMin field */ 288#define WME_PARAM_LOGCWMAX 0xf0 /* Mask for CwMax field (in log) */ 289#define WME_PARAM_LOGCWMAX_S 4 /* Shift for CwMax field */ 290 291#define WME_AC_TO_TID(_ac) ( \ 292 ((_ac) == WME_AC_VO) ? 6 : \ 293 ((_ac) == WME_AC_VI) ? 5 : \ 294 ((_ac) == WME_AC_BK) ? 1 : \ 295 0) 296 297#define TID_TO_WME_AC(_tid) ( \ 298 ((_tid) == 0 || (_tid) == 3) ? WME_AC_BE : \ 299 ((_tid) < 3) ? WME_AC_BK : \ 300 ((_tid) < 6) ? WME_AC_VI : \ 301 WME_AC_VO) 302 303/* 304 * WME Parameter Element 305 */ 306struct ieee80211_wme_param { 307 uint8_t param_id; 308 uint8_t param_len; 309 uint8_t param_oui[3]; 310 uint8_t param_oui_type; 311 uint8_t param_oui_subtype; 312 uint8_t param_version; 313 uint8_t param_qosInfo; 314#define WME_QOSINFO_COUNT 0x0f /* Mask for param count field */ 315 uint8_t param_reserved; 316 struct ieee80211_wme_acparams params_acParams[WME_NUM_AC]; 317} __packed; 318 319/* 320 * WME U-APSD qos info field defines 321 */ 322#define WME_CAPINFO_UAPSD_EN 0x00000080 323#define WME_CAPINFO_UAPSD_VO 0x00000001 324#define WME_CAPINFO_UAPSD_VI 0x00000002 325#define WME_CAPINFO_UAPSD_BK 0x00000004 326#define WME_CAPINFO_UAPSD_BE 0x00000008 327#define WME_CAPINFO_UAPSD_ACFLAGS_SHIFT 0 328#define WME_CAPINFO_UAPSD_ACFLAGS_MASK 0xF 329#define WME_CAPINFO_UAPSD_MAXSP_SHIFT 5 330#define WME_CAPINFO_UAPSD_MAXSP_MASK 0x3 331#define WME_CAPINFO_IE_OFFSET 8 332#define WME_UAPSD_MAXSP(_qosinfo) \ 333 (((_qosinfo) >> WME_CAPINFO_UAPSD_MAXSP_SHIFT) & \ 334 WME_CAPINFO_UAPSD_MAXSP_MASK) 335#define WME_UAPSD_AC_ENABLED(_ac, _qosinfo) \ 336 ((1 << (3 - (_ac))) & ( \ 337 ((_qosinfo) >> WME_CAPINFO_UAPSD_ACFLAGS_SHIFT) & \ 338 WME_CAPINFO_UAPSD_ACFLAGS_MASK)) 339 340/* 341 * Management Notification Frame 342 */ 343struct ieee80211_mnf { 344 uint8_t mnf_category; 345 uint8_t mnf_action; 346 uint8_t mnf_dialog; 347 uint8_t mnf_status; 348} __packed; 349#define MNF_SETUP_REQ 0 350#define MNF_SETUP_RESP 1 351#define MNF_TEARDOWN 2 352 353/* 354 * 802.11n Management Action Frames 355 */ 356/* generic frame format */ 357struct ieee80211_action { 358 uint8_t ia_category; 359 uint8_t ia_action; 360} __packed; 361 362#define IEEE80211_ACTION_CAT_SM 0 /* Spectrum Management */ 363#define IEEE80211_ACTION_CAT_QOS 1 /* QoS */ 364#define IEEE80211_ACTION_CAT_DLS 2 /* DLS */ 365#define IEEE80211_ACTION_CAT_BA 3 /* BA */ 366#define IEEE80211_ACTION_CAT_HT 7 /* HT */ 367#define IEEE80211_ACTION_CAT_MESH 13 /* Mesh */ 368#define IEEE80211_ACTION_CAT_SELF_PROT 15 /* Self-protected */ 369/* 16 - 125 reserved */ 370#define IEEE80211_ACTION_CAT_VHT 21 371#define IEEE80211_ACTION_CAT_VENDOR 127 /* Vendor Specific */ 372 373#define IEEE80211_ACTION_HT_TXCHWIDTH 0 /* recommended xmit chan width*/ 374#define IEEE80211_ACTION_HT_MIMOPWRSAVE 1 /* MIMO power save */ 375 376/* HT - recommended transmission channel width */ 377struct ieee80211_action_ht_txchwidth { 378 struct ieee80211_action at_header; 379 uint8_t at_chwidth; 380} __packed; 381 382#define IEEE80211_A_HT_TXCHWIDTH_20 0 383#define IEEE80211_A_HT_TXCHWIDTH_2040 1 384 385/* HT - MIMO Power Save (NB: D2.04) */ 386struct ieee80211_action_ht_mimopowersave { 387 struct ieee80211_action am_header; 388 uint8_t am_control; 389} __packed; 390 391#define IEEE80211_A_HT_MIMOPWRSAVE_ENA 0x01 /* PS enabled */ 392#define IEEE80211_A_HT_MIMOPWRSAVE_MODE 0x02 393#define IEEE80211_A_HT_MIMOPWRSAVE_MODE_S 1 394#define IEEE80211_A_HT_MIMOPWRSAVE_DYNAMIC 0x02 /* Dynamic Mode */ 395#define IEEE80211_A_HT_MIMOPWRSAVE_STATIC 0x00 /* no SM packets */ 396/* bits 2-7 reserved */ 397 398/* Block Ack actions */ 399#define IEEE80211_ACTION_BA_ADDBA_REQUEST 0 /* ADDBA request */ 400#define IEEE80211_ACTION_BA_ADDBA_RESPONSE 1 /* ADDBA response */ 401#define IEEE80211_ACTION_BA_DELBA 2 /* DELBA */ 402 403/* Block Ack Parameter Set */ 404#define IEEE80211_BAPS_BUFSIZ 0xffc0 /* buffer size */ 405#define IEEE80211_BAPS_BUFSIZ_S 6 406#define IEEE80211_BAPS_TID 0x003c /* TID */ 407#define IEEE80211_BAPS_TID_S 2 408#define IEEE80211_BAPS_POLICY 0x0002 /* block ack policy */ 409#define IEEE80211_BAPS_POLICY_S 1 410 411#define IEEE80211_BAPS_POLICY_DELAYED (0<<IEEE80211_BAPS_POLICY_S) 412#define IEEE80211_BAPS_POLICY_IMMEDIATE (1<<IEEE80211_BAPS_POLICY_S) 413 414/* Block Ack Sequence Control */ 415#define IEEE80211_BASEQ_START 0xfff0 /* starting seqnum */ 416#define IEEE80211_BASEQ_START_S 4 417#define IEEE80211_BASEQ_FRAG 0x000f /* fragment number */ 418#define IEEE80211_BASEQ_FRAG_S 0 419 420/* Delayed Block Ack Parameter Set */ 421#define IEEE80211_DELBAPS_TID 0xf000 /* TID */ 422#define IEEE80211_DELBAPS_TID_S 12 423#define IEEE80211_DELBAPS_INIT 0x0800 /* initiator */ 424#define IEEE80211_DELBAPS_INIT_S 11 425 426/* BA - ADDBA request */ 427struct ieee80211_action_ba_addbarequest { 428 struct ieee80211_action rq_header; 429 uint8_t rq_dialogtoken; 430 uint16_t rq_baparamset; 431 uint16_t rq_batimeout; /* in TUs */ 432 uint16_t rq_baseqctl; 433} __packed; 434 435/* BA - ADDBA response */ 436struct ieee80211_action_ba_addbaresponse { 437 struct ieee80211_action rs_header; 438 uint8_t rs_dialogtoken; 439 uint16_t rs_statuscode; 440 uint16_t rs_baparamset; 441 uint16_t rs_batimeout; /* in TUs */ 442} __packed; 443 444/* BA - DELBA */ 445struct ieee80211_action_ba_delba { 446 struct ieee80211_action dl_header; 447 uint16_t dl_baparamset; 448 uint16_t dl_reasoncode; 449} __packed; 450 451/* BAR Control */ 452#define IEEE80211_BAR_TID 0xf000 /* TID */ 453#define IEEE80211_BAR_TID_S 12 454#define IEEE80211_BAR_COMP 0x0004 /* Compressed Bitmap */ 455#define IEEE80211_BAR_MTID 0x0002 /* Multi-TID */ 456#define IEEE80211_BAR_NOACK 0x0001 /* No-Ack policy */ 457 458/* BAR Starting Sequence Control */ 459#define IEEE80211_BAR_SEQ_START 0xfff0 /* starting seqnum */ 460#define IEEE80211_BAR_SEQ_START_S 4 461 462struct ieee80211_ba_request { 463 uint16_t rq_barctl; 464 uint16_t rq_barseqctl; 465} __packed; 466 467/* 468 * Control frames. 469 */ 470struct ieee80211_frame_min { 471 uint8_t i_fc[2]; 472 uint8_t i_dur[2]; 473 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 474 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 475 /* FCS */ 476} __packed; 477 478struct ieee80211_frame_rts { 479 uint8_t i_fc[2]; 480 uint8_t i_dur[2]; 481 uint8_t i_ra[IEEE80211_ADDR_LEN]; 482 uint8_t i_ta[IEEE80211_ADDR_LEN]; 483 /* FCS */ 484} __packed; 485 486struct ieee80211_frame_cts { 487 uint8_t i_fc[2]; 488 uint8_t i_dur[2]; 489 uint8_t i_ra[IEEE80211_ADDR_LEN]; 490 /* FCS */ 491} __packed; 492 493struct ieee80211_frame_ack { 494 uint8_t i_fc[2]; 495 uint8_t i_dur[2]; 496 uint8_t i_ra[IEEE80211_ADDR_LEN]; 497 /* FCS */ 498} __packed; 499 500struct ieee80211_frame_pspoll { 501 uint8_t i_fc[2]; 502 uint8_t i_aid[2]; 503 uint8_t i_bssid[IEEE80211_ADDR_LEN]; 504 uint8_t i_ta[IEEE80211_ADDR_LEN]; 505 /* FCS */ 506} __packed; 507 508struct ieee80211_frame_cfend { /* NB: also CF-End+CF-Ack */ 509 uint8_t i_fc[2]; 510 uint8_t i_dur[2]; /* should be zero */ 511 uint8_t i_ra[IEEE80211_ADDR_LEN]; 512 uint8_t i_bssid[IEEE80211_ADDR_LEN]; 513 /* FCS */ 514} __packed; 515 516struct ieee80211_frame_bar { 517 uint8_t i_fc[2]; 518 uint8_t i_dur[2]; 519 uint8_t i_ra[IEEE80211_ADDR_LEN]; 520 uint8_t i_ta[IEEE80211_ADDR_LEN]; 521 uint16_t i_ctl; 522 uint16_t i_seq; 523 /* FCS */ 524} __packed; 525 526/* 527 * BEACON management packets 528 * 529 * octet timestamp[8] 530 * octet beacon interval[2] 531 * octet capability information[2] 532 * information element 533 * octet elemid 534 * octet length 535 * octet information[length] 536 */ 537 538#define IEEE80211_BEACON_INTERVAL(beacon) \ 539 ((beacon)[8] | ((beacon)[9] << 8)) 540#define IEEE80211_BEACON_CAPABILITY(beacon) \ 541 ((beacon)[10] | ((beacon)[11] << 8)) 542 543#define IEEE80211_CAPINFO_ESS 0x0001 544#define IEEE80211_CAPINFO_IBSS 0x0002 545#define IEEE80211_CAPINFO_CF_POLLABLE 0x0004 546#define IEEE80211_CAPINFO_CF_POLLREQ 0x0008 547#define IEEE80211_CAPINFO_PRIVACY 0x0010 548#define IEEE80211_CAPINFO_SHORT_PREAMBLE 0x0020 549#define IEEE80211_CAPINFO_PBCC 0x0040 550#define IEEE80211_CAPINFO_CHNL_AGILITY 0x0080 551#define IEEE80211_CAPINFO_SPECTRUM_MGMT 0x0100 552/* bit 9 is reserved */ 553#define IEEE80211_CAPINFO_SHORT_SLOTTIME 0x0400 554#define IEEE80211_CAPINFO_RSN 0x0800 555/* bit 12 is reserved */ 556#define IEEE80211_CAPINFO_DSSSOFDM 0x2000 557/* bits 14-15 are reserved */ 558 559#define IEEE80211_CAPINFO_BITS \ 560 "\20\1ESS\2IBSS\3CF_POLLABLE\4CF_POLLREQ\5PRIVACY\6SHORT_PREAMBLE" \ 561 "\7PBCC\10CHNL_AGILITY\11SPECTRUM_MGMT\13SHORT_SLOTTIME\14RSN" \ 562 "\16DSSOFDM" 563 564/* 565 * 802.11i/WPA information element (maximally sized). 566 */ 567struct ieee80211_ie_wpa { 568 uint8_t wpa_id; /* IEEE80211_ELEMID_VENDOR */ 569 uint8_t wpa_len; /* length in bytes */ 570 uint8_t wpa_oui[3]; /* 0x00, 0x50, 0xf2 */ 571 uint8_t wpa_type; /* OUI type */ 572 uint16_t wpa_version; /* spec revision */ 573 uint32_t wpa_mcipher[1]; /* multicast/group key cipher */ 574 uint16_t wpa_uciphercnt; /* # pairwise key ciphers */ 575 uint32_t wpa_uciphers[8];/* ciphers */ 576 uint16_t wpa_authselcnt; /* authentication selector cnt*/ 577 uint32_t wpa_authsels[8];/* selectors */ 578 uint16_t wpa_caps; /* 802.11i capabilities */ 579 uint16_t wpa_pmkidcnt; /* 802.11i pmkid count */ 580 uint16_t wpa_pmkids[8]; /* 802.11i pmkids */ 581} __packed; 582 583/* 584 * 802.11n HT Capability IE 585 * NB: these reflect D1.10 586 */ 587struct ieee80211_ie_htcap { 588 uint8_t hc_id; /* element ID */ 589 uint8_t hc_len; /* length in bytes */ 590 uint16_t hc_cap; /* HT caps (see below) */ 591 uint8_t hc_param; /* HT params (see below) */ 592 uint8_t hc_mcsset[16]; /* supported MCS set */ 593 uint16_t hc_extcap; /* extended HT capabilities */ 594 uint32_t hc_txbf; /* txbf capabilities */ 595 uint8_t hc_antenna; /* antenna capabilities */ 596} __packed; 597 598/* HT capability flags (ht_cap) */ 599#define IEEE80211_HTCAP_LDPC 0x0001 /* LDPC supported */ 600#define IEEE80211_HTCAP_CHWIDTH40 0x0002 /* 20/40 supported */ 601#define IEEE80211_HTCAP_SMPS 0x000c /* SM Power Save mode */ 602#define IEEE80211_HTCAP_SMPS_OFF 0x000c /* disabled */ 603#define IEEE80211_HTCAP_SMPS_DYNAMIC 0x0004 /* send RTS first */ 604/* NB: SMPS value 2 is reserved */ 605#define IEEE80211_HTCAP_SMPS_ENA 0x0000 /* enabled (static mode) */ 606#define IEEE80211_HTCAP_GREENFIELD 0x0010 /* Greenfield supported */ 607#define IEEE80211_HTCAP_SHORTGI20 0x0020 /* Short GI in 20MHz */ 608#define IEEE80211_HTCAP_SHORTGI40 0x0040 /* Short GI in 40MHz */ 609#define IEEE80211_HTCAP_TXSTBC 0x0080 /* STBC tx ok */ 610#define IEEE80211_HTCAP_RXSTBC 0x0300 /* STBC rx support */ 611#define IEEE80211_HTCAP_RXSTBC_S 8 612#define IEEE80211_HTCAP_RXSTBC_1STREAM 0x0100 /* 1 spatial stream */ 613#define IEEE80211_HTCAP_RXSTBC_2STREAM 0x0200 /* 1-2 spatial streams*/ 614#define IEEE80211_HTCAP_RXSTBC_3STREAM 0x0300 /* 1-3 spatial streams*/ 615#define IEEE80211_HTCAP_DELBA 0x0400 /* HT DELBA supported */ 616#define IEEE80211_HTCAP_MAXAMSDU 0x0800 /* max A-MSDU length */ 617#define IEEE80211_HTCAP_MAXAMSDU_7935 0x0800 /* 7935 octets */ 618#define IEEE80211_HTCAP_MAXAMSDU_3839 0x0000 /* 3839 octets */ 619#define IEEE80211_HTCAP_DSSSCCK40 0x1000 /* DSSS/CCK in 40MHz */ 620#define IEEE80211_HTCAP_PSMP 0x2000 /* PSMP supported */ 621#define IEEE80211_HTCAP_40INTOLERANT 0x4000 /* 40MHz intolerant */ 622#define IEEE80211_HTCAP_LSIGTXOPPROT 0x8000 /* L-SIG TXOP prot */ 623 624#define IEEE80211_HTCAP_BITS \ 625 "\20\1LDPC\2CHWIDTH40\5GREENFIELD\6SHORTGI20\7SHORTGI40\10TXSTBC" \ 626 "\13DELBA\14AMSDU(7935)\15DSSSCCK40\16PSMP\1740INTOLERANT" \ 627 "\20LSIGTXOPPROT" 628 629/* HT parameters (hc_param) */ 630#define IEEE80211_HTCAP_MAXRXAMPDU 0x03 /* max rx A-MPDU factor */ 631#define IEEE80211_HTCAP_MAXRXAMPDU_S 0 632#define IEEE80211_HTCAP_MAXRXAMPDU_8K 0 633#define IEEE80211_HTCAP_MAXRXAMPDU_16K 1 634#define IEEE80211_HTCAP_MAXRXAMPDU_32K 2 635#define IEEE80211_HTCAP_MAXRXAMPDU_64K 3 636#define IEEE80211_HTCAP_MPDUDENSITY 0x1c /* min MPDU start spacing */ 637#define IEEE80211_HTCAP_MPDUDENSITY_S 2 638#define IEEE80211_HTCAP_MPDUDENSITY_NA 0 /* no time restriction */ 639#define IEEE80211_HTCAP_MPDUDENSITY_025 1 /* 1/4 us */ 640#define IEEE80211_HTCAP_MPDUDENSITY_05 2 /* 1/2 us */ 641#define IEEE80211_HTCAP_MPDUDENSITY_1 3 /* 1 us */ 642#define IEEE80211_HTCAP_MPDUDENSITY_2 4 /* 2 us */ 643#define IEEE80211_HTCAP_MPDUDENSITY_4 5 /* 4 us */ 644#define IEEE80211_HTCAP_MPDUDENSITY_8 6 /* 8 us */ 645#define IEEE80211_HTCAP_MPDUDENSITY_16 7 /* 16 us */ 646 647/* HT extended capabilities (hc_extcap) */ 648#define IEEE80211_HTCAP_PCO 0x0001 /* PCO capable */ 649#define IEEE80211_HTCAP_PCOTRANS 0x0006 /* PCO transition time */ 650#define IEEE80211_HTCAP_PCOTRANS_S 1 651#define IEEE80211_HTCAP_PCOTRANS_04 0x0002 /* 400 us */ 652#define IEEE80211_HTCAP_PCOTRANS_15 0x0004 /* 1.5 ms */ 653#define IEEE80211_HTCAP_PCOTRANS_5 0x0006 /* 5 ms */ 654/* bits 3-7 reserved */ 655#define IEEE80211_HTCAP_MCSFBACK 0x0300 /* MCS feedback */ 656#define IEEE80211_HTCAP_MCSFBACK_S 8 657#define IEEE80211_HTCAP_MCSFBACK_NONE 0x0000 /* nothing provided */ 658#define IEEE80211_HTCAP_MCSFBACK_UNSOL 0x0200 /* unsolicited feedback */ 659#define IEEE80211_HTCAP_MCSFBACK_MRQ 0x0300 /* " "+respond to MRQ */ 660#define IEEE80211_HTCAP_HTC 0x0400 /* +HTC support */ 661#define IEEE80211_HTCAP_RDR 0x0800 /* reverse direction responder*/ 662/* bits 12-15 reserved */ 663 664/* 665 * 802.11n HT Information IE 666 */ 667struct ieee80211_ie_htinfo { 668 uint8_t hi_id; /* element ID */ 669 uint8_t hi_len; /* length in bytes */ 670 uint8_t hi_ctrlchannel; /* primary channel */ 671 uint8_t hi_byte1; /* ht ie byte 1 */ 672 uint8_t hi_byte2; /* ht ie byte 2 */ 673 uint8_t hi_byte3; /* ht ie byte 3 */ 674 uint16_t hi_byte45; /* ht ie bytes 4+5 */ 675 uint8_t hi_basicmcsset[16]; /* basic MCS set */ 676} __packed; 677 678/* byte1 */ 679#define IEEE80211_HTINFO_2NDCHAN 0x03 /* secondary/ext chan offset */ 680#define IEEE80211_HTINFO_2NDCHAN_S 0 681#define IEEE80211_HTINFO_2NDCHAN_NONE 0x00 /* no secondary/ext channel */ 682#define IEEE80211_HTINFO_2NDCHAN_ABOVE 0x01 /* above private channel */ 683/* NB: 2 is reserved */ 684#define IEEE80211_HTINFO_2NDCHAN_BELOW 0x03 /* below primary channel */ 685#define IEEE80211_HTINFO_TXWIDTH 0x04 /* tx channel width */ 686#define IEEE80211_HTINFO_TXWIDTH_20 0x00 /* 20MHz width */ 687#define IEEE80211_HTINFO_TXWIDTH_2040 0x04 /* any supported width */ 688#define IEEE80211_HTINFO_RIFSMODE 0x08 /* Reduced IFS (RIFS) use */ 689#define IEEE80211_HTINFO_RIFSMODE_PROH 0x00 /* RIFS use prohibited */ 690#define IEEE80211_HTINFO_RIFSMODE_PERM 0x08 /* RIFS use permitted */ 691#define IEEE80211_HTINFO_PMSPONLY 0x10 /* PSMP required to associate */ 692#define IEEE80211_HTINFO_SIGRAN 0xe0 /* shortest Service Interval */ 693#define IEEE80211_HTINFO_SIGRAN_S 5 694#define IEEE80211_HTINFO_SIGRAN_5 0x00 /* 5 ms */ 695/* XXX add rest */ 696 697/* bytes 2+3 */ 698#define IEEE80211_HTINFO_OPMODE 0x03 /* operating mode */ 699#define IEEE80211_HTINFO_OPMODE_S 0 700#define IEEE80211_HTINFO_OPMODE_PURE 0x00 /* no protection */ 701#define IEEE80211_HTINFO_OPMODE_PROTOPT 0x01 /* protection optional */ 702#define IEEE80211_HTINFO_OPMODE_HT20PR 0x02 /* protection for HT20 sta's */ 703#define IEEE80211_HTINFO_OPMODE_MIXED 0x03 /* protection for legacy sta's*/ 704#define IEEE80211_HTINFO_NONGF_PRESENT 0x04 /* non-GF sta's present */ 705#define IEEE80211_HTINFO_TXBL 0x08 /* transmit burst limit */ 706#define IEEE80211_HTINFO_NONHT_PRESENT 0x10 /* non-HT sta's present */ 707/* bits 5-15 reserved */ 708 709/* bytes 4+5 */ 710#define IEEE80211_HTINFO_2NDARYBEACON 0x01 711#define IEEE80211_HTINFO_LSIGTXOPPROT 0x02 712#define IEEE80211_HTINFO_PCO_ACTIVE 0x04 713#define IEEE80211_HTINFO_40MHZPHASE 0x08 714 715/* byte5 */ 716#define IEEE80211_HTINFO_BASIC_STBCMCS 0x7f 717#define IEEE80211_HTINFO_BASIC_STBCMCS_S 0 718#define IEEE80211_HTINFO_DUALPROTECTED 0x80 719 720 721/* 722 * 802.11ac definitions - 802.11ac-2013 . 723 */ 724 725/* VHT opmode bits */ 726#define IEEE80211_VHT_OPMODE_CHANWIDTH_MASK 3 727#define IEEE80211_VHT_OPMODE_CHANWIDTH_20MHZ 0 728#define IEEE80211_VHT_OPMODE_CHANWIDTH_40MHZ 1 729#define IEEE80211_VHT_OPMODE_CHANWIDTH_80MHZ 2 730#define IEEE80211_VHT_OPMODE_CHANWIDTH_160MHZ 3 731#define IEEE80211_VHT_OPMODE_RX_NSS_MASK 0x70 732#define IEEE80211_VHT_OPMODE_RX_NSS_SHIFT 4 733#define IEEE80211_VHT_OPMODE_RX_NSS_TYPE_BF 0x80 734 735/* 736 * Maximum length of A-MPDU that the STA can RX in VHT. 737 * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets) 738 */ 739#define IEEE80211_VHTCAP_MAX_AMPDU_8K 0 740#define IEEE80211_VHTCAP_MAX_AMPDU_16K 1 741#define IEEE80211_VHTCAP_MAX_AMPDU_32K 2 742#define IEEE80211_VHTCAP_MAX_AMPDU_64K 3 743#define IEEE80211_VHTCAP_MAX_AMPDU_128K 4 744#define IEEE80211_VHTCAP_MAX_AMPDU_256K 5 745#define IEEE80211_VHTCAP_MAX_AMPDU_512K 6 746#define IEEE80211_VHTCAP_MAX_AMPDU_1024K 7 747 748/* 749 * VHT MCS information. 750 * + rx_highest/tx_highest: optional; maximum long GI VHT PPDU 751 * data rate. 1Mbit/sec units. 752 * + rx_mcs_map/tx_mcs_map: bitmap of per-stream supported MCS; 753 * 2 bits each. 754 */ 755#define IEEE80211_VHT_MCS_SUPPORT_0_7 0 /* MCS0-7 */ 756#define IEEE80211_VHT_MCS_SUPPORT_0_8 1 /* MCS0-8 */ 757#define IEEE80211_VHT_MCS_SUPPORT_0_9 2 /* MCS0-9 */ 758#define IEEE80211_VHT_MCS_NOT_SUPPORTED 3 /* not supported */ 759 760struct ieee80211_vht_mcs_info { 761 uint16_t rx_mcs_map; 762 uint16_t rx_highest; 763 uint16_t tx_mcs_map; 764 uint16_t tx_highest; 765} __packed; 766 767/* VHT capabilities element: 802.11ac-2013 8.4.2.160 */ 768struct ieee80211_ie_vhtcap { 769 uint8_t ie; 770 uint8_t len; 771 uint32_t vht_cap_info; 772 struct ieee80211_vht_mcs_info supp_mcs; 773} __packed; 774 775#define IEEE80211_VHT_CHANWIDTH_USE_HT 0 /* Use HT IE for chw */ 776#define IEEE80211_VHT_CHANWIDTH_80MHZ 1 /* 80MHz */ 777#define IEEE80211_VHT_CHANWIDTH_160MHZ 2 /* 160MHz */ 778#define IEEE80211_VHT_CHANWIDTH_80P80MHZ 3 /* 80+80MHz */ 779 780/* VHT operation IE - 802.11ac-2013 8.4.2.161 */ 781struct ieee80211_ie_vht_operation { 782 uint8_t ie; 783 uint8_t len; 784 uint8_t chan_width; 785 uint8_t center_freq_seg1_idx; 786 uint8_t center_freq_seg2_idx; 787 uint16_t basic_mcs_set; 788} __packed; 789 790/* 802.11ac VHT Capabilities */ 791#define IEEE80211_VHTCAP_MAX_MPDU_LENGTH_3895 0x00000000 792#define IEEE80211_VHTCAP_MAX_MPDU_LENGTH_7991 0x00000001 793#define IEEE80211_VHTCAP_MAX_MPDU_LENGTH_11454 0x00000002 794#define IEEE80211_VHTCAP_MAX_MPDU_MASK 0x00000003 795#define IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_160MHZ 0x00000004 796#define IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ 0x00000008 797#define IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_MASK 0x0000000C 798#define IEEE80211_VHTCAP_RXLDPC 0x00000010 799#define IEEE80211_VHTCAP_SHORT_GI_80 0x00000020 800#define IEEE80211_VHTCAP_SHORT_GI_160 0x00000040 801#define IEEE80211_VHTCAP_TXSTBC 0x00000080 802#define IEEE80211_VHTCAP_RXSTBC_1 0x00000100 803#define IEEE80211_VHTCAP_RXSTBC_2 0x00000200 804#define IEEE80211_VHTCAP_RXSTBC_3 0x00000300 805#define IEEE80211_VHTCAP_RXSTBC_4 0x00000400 806#define IEEE80211_VHTCAP_RXSTBC_MASK 0x00000700 807#define IEEE80211_VHTCAP_SU_BEAMFORMER_CAPABLE 0x00000800 808#define IEEE80211_VHTCAP_SU_BEAMFORMEE_CAPABLE 0x00001000 809#define IEEE80211_VHTCAP_BEAMFORMEE_STS_SHIFT 13 810#define IEEE80211_VHTCAP_BEAMFORMEE_STS_MASK \ 811 (7 << IEEE80211_VHTCAP_BEAMFORMEE_STS_SHIFT) 812#define IEEE80211_VHTCAP_SOUNDING_DIMENSIONS_SHIFT 16 813#define IEEE80211_VHTCAP_SOUNDING_DIMENSIONS_MASK \ 814 (7 << IEEE80211_VHTCAP_SOUNDING_DIMENSIONS_SHIFT) 815#define IEEE80211_VHTCAP_MU_BEAMFORMER_CAPABLE 0x00080000 816#define IEEE80211_VHTCAP_MU_BEAMFORMEE_CAPABLE 0x00100000 817#define IEEE80211_VHTCAP_VHT_TXOP_PS 0x00200000 818#define IEEE80211_VHTCAP_HTC_VHT 0x00400000 819#define IEEE80211_VHTCAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT 23 820#define IEEE80211_VHTCAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK \ 821 (7 << IEEE80211_VHTCAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT) 822#define IEEE80211_VHTCAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB 0x08000000 823#define IEEE80211_VHTCAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB 0x0c000000 824#define IEEE80211_VHTCAP_RX_ANTENNA_PATTERN 0x10000000 825#define IEEE80211_VHTCAP_TX_ANTENNA_PATTERN 0x20000000 826 827/* 828 * VHT Transmit Power Envelope element - 802.11ac-2013 8.4.2.164 829 * 830 * This defines the maximum transmit power for various bandwidths. 831 */ 832/* 833 * Count is how many elements follow and what they're for: 834 * 835 * 0 - 20 MHz 836 * 1 - 20+40 MHz 837 * 2 - 20+40+80 MHz 838 * 3 - 20+40+80+(160, 80+80) MHz 839 */ 840#define IEEE80211_VHT_TXPWRENV_INFO_COUNT_SHIFT 0 841#define IEEE80211_VHT_TXPWRENV_INFO_COUNT_MASK 0x07 842 843/* 844 * Unit is the tx power representation. It should be EIRP for now; 845 * other values are reserved. 846 */ 847#define IEEE80211_VHT_TXPWRENV_UNIT_MASK 0x38 848#define IEEE80211_VHT_TXPWRENV_UNIT_SHIFT 3 849 850/* This value is within the unit mask/shift above */ 851#define IEEE80211_VHT_TXPWRENV_UNIT_EIRP 0 852 853struct ieee80211_ie_vht_txpwrenv { 854 uint8_t ie; 855 uint8_t len; 856 uint8_t tx_info; 857 int8_t tx_elem[0]; /* TX power elements, 1/2 dB, signed */ 858}; 859 860/* VHT action codes */ 861#define WLAN_ACTION_VHT_COMPRESSED_BF 0 862#define WLAN_ACTION_VHT_GROUPID_MGMT 1 863#define WLAN_ACTION_VHT_OPMODE_NOTIF 2 864 865/* 866 * Management information element payloads. 867 */ 868 869enum { 870 IEEE80211_ELEMID_SSID = 0, 871 IEEE80211_ELEMID_RATES = 1, 872 IEEE80211_ELEMID_FHPARMS = 2, 873 IEEE80211_ELEMID_DSPARMS = 3, 874 IEEE80211_ELEMID_CFPARMS = 4, 875 IEEE80211_ELEMID_TIM = 5, 876 IEEE80211_ELEMID_IBSSPARMS = 6, 877 IEEE80211_ELEMID_COUNTRY = 7, 878 IEEE80211_ELEMID_BSSLOAD = 11, 879 IEEE80211_ELEMID_TSPEC = 13, 880 IEEE80211_ELEMID_TCLAS = 14, 881 IEEE80211_ELEMID_CHALLENGE = 16, 882 /* 17-31 reserved for challenge text extension */ 883 IEEE80211_ELEMID_PWRCNSTR = 32, 884 IEEE80211_ELEMID_PWRCAP = 33, 885 IEEE80211_ELEMID_TPCREQ = 34, 886 IEEE80211_ELEMID_TPCREP = 35, 887 IEEE80211_ELEMID_SUPPCHAN = 36, 888 IEEE80211_ELEMID_CSA = 37, 889 IEEE80211_ELEMID_MEASREQ = 38, 890 IEEE80211_ELEMID_MEASREP = 39, 891 IEEE80211_ELEMID_QUIET = 40, 892 IEEE80211_ELEMID_IBSSDFS = 41, 893 IEEE80211_ELEMID_ERP = 42, 894 IEEE80211_ELEMID_HTCAP = 45, 895 IEEE80211_ELEMID_QOS = 46, 896 IEEE80211_ELEMID_RSN = 48, 897 IEEE80211_ELEMID_XRATES = 50, 898 IEEE80211_ELEMID_APCHANREP = 51, 899 IEEE80211_ELEMID_HTINFO = 61, 900 IEEE80211_ELEMID_SECCHAN_OFFSET = 62, 901 IEEE80211_ELEMID_RRM_ENACAPS = 70, 902 IEEE80211_ELEMID_MULTIBSSID = 71, 903 IEEE80211_ELEMID_COEX_2040 = 72, 904 IEEE80211_ELEMID_INTOL_CHN_REPORT = 73, 905 IEEE80211_ELEMID_OVERLAP_BSS_SCAN_PARAM = 74, 906 IEEE80211_ELEMID_TSF_REQ = 91, 907 IEEE80211_ELEMID_TSF_RESP = 92, 908 IEEE80211_ELEMID_WNM_SLEEP_MODE = 93, 909 IEEE80211_ELEMID_TIM_BCAST_REQ = 94, 910 IEEE80211_ELEMID_TIM_BCAST_RESP = 95, 911 IEEE80211_ELEMID_TPC = 150, 912 IEEE80211_ELEMID_CCKM = 156, 913 IEEE80211_ELEMID_VENDOR = 221, /* vendor private */ 914 915 /* 916 * 802.11s IEs 917 * NB: On vanilla Linux still IEEE80211_ELEMID_MESHPEER = 55, 918 * but they defined a new with id 117 called PEER_MGMT. 919 * NB: complies with open80211 920 */ 921 IEEE80211_ELEMID_MESHCONF = 113, 922 IEEE80211_ELEMID_MESHID = 114, 923 IEEE80211_ELEMID_MESHLINK = 115, 924 IEEE80211_ELEMID_MESHCNGST = 116, 925 IEEE80211_ELEMID_MESHPEER = 117, 926 IEEE80211_ELEMID_MESHCSA = 118, 927 IEEE80211_ELEMID_MESHTIM = 39, /* XXX: remove */ 928 IEEE80211_ELEMID_MESHAWAKEW = 119, 929 IEEE80211_ELEMID_MESHBEACONT = 120, 930 /* 121-124 MMCAOP not implemented yet */ 931 IEEE80211_ELEMID_MESHGANN = 125, 932 IEEE80211_ELEMID_MESHRANN = 126, 933 /* 127 Extended Capabilities */ 934 IEEE80211_ELEMID_EXTCAP = 127, 935 /* 128-129 reserved */ 936 IEEE80211_ELEMID_MESHPREQ = 130, 937 IEEE80211_ELEMID_MESHPREP = 131, 938 IEEE80211_ELEMID_MESHPERR = 132, 939 /* 133-136 reserved */ 940 IEEE80211_ELEMID_MESHPXU = 137, 941 IEEE80211_ELEMID_MESHPXUC = 138, 942 IEEE80211_ELEMID_MESHAH = 60, /* XXX: remove */ 943 944 /* 802.11ac */ 945 IEEE80211_ELEMID_VHT_CAP = 191, 946 IEEE80211_ELEMID_VHT_OPMODE = 192, 947 IEEE80211_ELEMID_VHT_PWR_ENV = 195, 948}; 949 950struct ieee80211_tim_ie { 951 uint8_t tim_ie; /* IEEE80211_ELEMID_TIM */ 952 uint8_t tim_len; 953 uint8_t tim_count; /* DTIM count */ 954 uint8_t tim_period; /* DTIM period */ 955 uint8_t tim_bitctl; /* bitmap control */ 956 uint8_t tim_bitmap[1]; /* variable-length bitmap */ 957} __packed; 958 959struct ieee80211_country_ie { 960 uint8_t ie; /* IEEE80211_ELEMID_COUNTRY */ 961 uint8_t len; 962 uint8_t cc[3]; /* ISO CC+(I)ndoor/(O)utdoor */ 963 struct { 964 uint8_t schan; /* starting channel */ 965 uint8_t nchan; /* number channels */ 966 uint8_t maxtxpwr; /* tx power cap */ 967 } __packed band[1]; /* sub bands (NB: var size) */ 968} __packed; 969 970#define IEEE80211_COUNTRY_MAX_BANDS 84 /* max possible bands */ 971#define IEEE80211_COUNTRY_MAX_SIZE \ 972 (sizeof(struct ieee80211_country_ie) + 3*(IEEE80211_COUNTRY_MAX_BANDS-1)) 973 974struct ieee80211_bss_load_ie { 975 uint8_t ie; 976 uint8_t len; 977 uint16_t sta_count; /* station count */ 978 uint8_t chan_load; /* channel utilization */ 979 uint8_t aac; /* available admission capacity */ 980} __packed; 981 982struct ieee80211_ap_chan_report_ie { 983 uint8_t ie; 984 uint8_t len; 985 uint8_t i_class; /* operating class */ 986 /* Annex E, E.1 Country information and operating classes */ 987 uint8_t chan_list[0]; 988} __packed; 989 990#define IEEE80211_EXTCAP_CMS (1ULL << 0) /* 20/40 BSS coexistence management support */ 991#define IEEE80211_EXTCAP_RSVD_1 (1ULL << 1) 992#define IEEE80211_EXTCAP_ECS (1ULL << 2) /* extended channel switching */ 993#define IEEE80211_EXTCAP_RSVD_3 (1ULL << 3) 994#define IEEE80211_EXTCAP_PSMP_CAP (1ULL << 4) /* PSMP capability */ 995#define IEEE80211_EXTCAP_RSVD_5 (1ULL << 5) 996#define IEEE80211_EXTCAP_S_PSMP_SUPP (1ULL << 6) 997#define IEEE80211_EXTCAP_EVENT (1ULL << 7) 998#define IEEE80211_EXTCAP_DIAGNOSTICS (1ULL << 8) 999#define IEEE80211_EXTCAP_MCAST_DIAG (1ULL << 9) 1000#define IEEE80211_EXTCAP_LOC_TRACKING (1ULL << 10) 1001#define IEEE80211_EXTCAP_FMS (1ULL << 11) 1002#define IEEE80211_EXTCAP_PROXY_ARP (1ULL << 12) 1003#define IEEE80211_EXTCAP_CIR (1ULL << 13) /* collocated interference reporting */ 1004#define IEEE80211_EXTCAP_CIVIC_LOC (1ULL << 14) 1005#define IEEE80211_EXTCAP_GEOSPATIAL_LOC (1ULL << 15) 1006#define IEEE80211_EXTCAP_TFS (1ULL << 16) 1007#define IEEE80211_EXTCAP_WNM_SLEEPMODE (1ULL << 17) 1008#define IEEE80211_EXTCAP_TIM_BROADCAST (1ULL << 18) 1009#define IEEE80211_EXTCAP_BSS_TRANSITION (1ULL << 19) 1010#define IEEE80211_EXTCAP_QOS_TRAF_CAP (1ULL << 20) 1011#define IEEE80211_EXTCAP_AC_STA_COUNT (1ULL << 21) 1012#define IEEE80211_EXTCAP_M_BSSID (1ULL << 22) /* multiple BSSID field */ 1013#define IEEE80211_EXTCAP_TIMING_MEAS (1ULL << 23) 1014#define IEEE80211_EXTCAP_CHAN_USAGE (1ULL << 24) 1015#define IEEE80211_EXTCAP_SSID_LIST (1ULL << 25) 1016#define IEEE80211_EXTCAP_DMS (1ULL << 26) 1017#define IEEE80211_EXTCAP_UTC_TSF_OFFSET (1ULL << 27) 1018#define IEEE80211_EXTCAP_TLDS_BUF_STA_SUPP (1ULL << 28) /* TDLS peer U-APSP buffer STA support */ 1019#define IEEE80211_EXTCAP_TLDS_PPSM_SUPP (1ULL << 29) /* TDLS peer PSM support */ 1020#define IEEE80211_EXTCAP_TLDS_CH_SW (1ULL << 30) /* TDLS channel switching */ 1021#define IEEE80211_EXTCAP_INTERWORKING (1ULL << 31) 1022#define IEEE80211_EXTCAP_QOSMAP (1ULL << 32) 1023#define IEEE80211_EXTCAP_EBR (1ULL << 33) 1024#define IEEE80211_EXTCAP_SSPN_IF (1ULL << 34) 1025#define IEEE80211_EXTCAP_RSVD_35 (1ULL << 35) 1026#define IEEE80211_EXTCAP_MSGCF_CAP (1ULL << 36) 1027#define IEEE80211_EXTCAP_TLDS_SUPP (1ULL << 37) 1028#define IEEE80211_EXTCAP_TLDS_PROHIB (1ULL << 38) 1029#define IEEE80211_EXTCAP_TLDS_CH_SW_PROHIB (1ULL << 39) /* TDLS channel switching prohibited */ 1030#define IEEE80211_EXTCAP_RUF (1ULL << 40) /* reject unadmitted frame */ 1031/* service interval granularity */ 1032#define IEEE80211_EXTCAP_SIG \ 1033 ((1ULL << 41) | (1ULL << 42) | (1ULL << 43)) 1034#define IEEE80211_EXTCAP_ID_LOC (1ULL << 44) 1035#define IEEE80211_EXTCAP_U_APSD_COEX (1ULL << 45) 1036#define IEEE80211_EXTCAP_WNM_NOTIFICATION (1ULL << 46) 1037#define IEEE80211_EXTCAP_RSVD_47 (1ULL << 47) 1038#define IEEE80211_EXTCAP_SSID (1ULL << 48) /* UTF-8 SSID */ 1039/* bits 49-n are reserved */ 1040 1041struct ieee80211_extcap_ie { 1042 uint8_t ie; 1043 uint8_t len; 1044} __packed; 1045 1046/* 1047 * 802.11h Quiet Time Element. 1048 */ 1049struct ieee80211_quiet_ie { 1050 uint8_t quiet_ie; /* IEEE80211_ELEMID_QUIET */ 1051 uint8_t len; 1052 uint8_t tbttcount; /* quiet start */ 1053 uint8_t period; /* beacon intervals between quiets */ 1054 uint16_t duration; /* TUs of each quiet*/ 1055 uint16_t offset; /* TUs of from TBTT of quiet start */ 1056} __packed; 1057 1058/* 1059 * 802.11h Channel Switch Announcement (CSA). 1060 */ 1061struct ieee80211_csa_ie { 1062 uint8_t csa_ie; /* IEEE80211_ELEMID_CHANSWITCHANN */ 1063 uint8_t csa_len; 1064 uint8_t csa_mode; /* Channel Switch Mode */ 1065 uint8_t csa_newchan; /* New Channel Number */ 1066 uint8_t csa_count; /* Channel Switch Count */ 1067} __packed; 1068 1069/* 1070 * Note the min acceptable CSA count is used to guard against 1071 * malicious CSA injection in station mode. Defining this value 1072 * as other than 0 violates the 11h spec. 1073 */ 1074#define IEEE80211_CSA_COUNT_MIN 2 1075#define IEEE80211_CSA_COUNT_MAX 255 1076 1077/* rate set entries are in .5 Mb/s units, and potentially marked as basic */ 1078#define IEEE80211_RATE_BASIC 0x80 1079#define IEEE80211_RATE_VAL 0x7f 1080#define IEEE80211_RV(v) ((v) & IEEE80211_RATE_VAL) 1081 1082/* ERP information element flags */ 1083#define IEEE80211_ERP_NON_ERP_PRESENT 0x01 1084#define IEEE80211_ERP_USE_PROTECTION 0x02 1085#define IEEE80211_ERP_LONG_PREAMBLE 0x04 1086 1087#define IEEE80211_ERP_BITS \ 1088 "\20\1NON_ERP_PRESENT\2USE_PROTECTION\3LONG_PREAMBLE" 1089 1090#define ATH_OUI 0x7f0300 /* Atheros OUI */ 1091#define ATH_OUI_TYPE 0x01 /* Atheros protocol ie */ 1092 1093/* NB: Atheros allocated the OUI for this purpose ~2005 but beware ... */ 1094#define TDMA_OUI ATH_OUI 1095#define TDMA_OUI_TYPE 0x02 /* TDMA protocol ie */ 1096 1097#define BCM_OUI 0x4c9000 /* Broadcom OUI */ 1098#define BCM_OUI_HTCAP 51 /* pre-draft HTCAP ie */ 1099#define BCM_OUI_HTINFO 52 /* pre-draft HTINFO ie */ 1100 1101#define WPA_OUI 0xf25000 1102#define WPA_OUI_TYPE 0x01 1103#define WPA_VERSION 1 /* current supported version */ 1104 1105#define WPA_CSE_NULL 0x00 1106#define WPA_CSE_WEP40 0x01 1107#define WPA_CSE_TKIP 0x02 1108#define WPA_CSE_CCMP 0x04 1109#define WPA_CSE_WEP104 0x05 1110 1111#define WPA_ASE_NONE 0x00 1112#define WPA_ASE_8021X_UNSPEC 0x01 1113#define WPA_ASE_8021X_PSK 0x02 1114 1115#define WPS_OUI_TYPE 0x04 1116 1117#define RSN_OUI 0xac0f00 1118#define RSN_VERSION 1 /* current supported version */ 1119 1120#define RSN_CSE_NULL 0x00 1121#define RSN_CSE_WEP40 0x01 1122#define RSN_CSE_TKIP 0x02 1123#define RSN_CSE_WRAP 0x03 1124#define RSN_CSE_CCMP 0x04 1125#define RSN_CSE_WEP104 0x05 1126 1127#define RSN_ASE_NONE 0x00 1128#define RSN_ASE_8021X_UNSPEC 0x01 1129#define RSN_ASE_8021X_PSK 0x02 1130 1131#define RSN_CAP_PREAUTH 0x01 1132 1133#define WME_OUI 0xf25000 1134#define WME_OUI_TYPE 0x02 1135#define WME_INFO_OUI_SUBTYPE 0x00 1136#define WME_PARAM_OUI_SUBTYPE 0x01 1137#define WME_VERSION 1 1138 1139/* WME stream classes */ 1140#define WME_AC_BE 0 /* best effort */ 1141#define WME_AC_BK 1 /* background */ 1142#define WME_AC_VI 2 /* video */ 1143#define WME_AC_VO 3 /* voice */ 1144 1145/* 1146 * AUTH management packets 1147 * 1148 * octet algo[2] 1149 * octet seq[2] 1150 * octet status[2] 1151 * octet chal.id 1152 * octet chal.length 1153 * octet chal.text[253] NB: 1-253 bytes 1154 */ 1155 1156/* challenge length for shared key auth */ 1157#define IEEE80211_CHALLENGE_LEN 128 1158 1159#define IEEE80211_AUTH_ALG_OPEN 0x0000 1160#define IEEE80211_AUTH_ALG_SHARED 0x0001 1161#define IEEE80211_AUTH_ALG_LEAP 0x0080 1162 1163enum { 1164 IEEE80211_AUTH_OPEN_REQUEST = 1, 1165 IEEE80211_AUTH_OPEN_RESPONSE = 2, 1166}; 1167 1168enum { 1169 IEEE80211_AUTH_SHARED_REQUEST = 1, 1170 IEEE80211_AUTH_SHARED_CHALLENGE = 2, 1171 IEEE80211_AUTH_SHARED_RESPONSE = 3, 1172 IEEE80211_AUTH_SHARED_PASS = 4, 1173}; 1174 1175/* 1176 * Reason and status codes. 1177 * 1178 * Reason codes are used in management frames to indicate why an 1179 * action took place (e.g. on disassociation). Status codes are 1180 * used in management frames to indicate the result of an operation. 1181 * 1182 * Unlisted codes are reserved 1183 */ 1184 1185enum { 1186 IEEE80211_REASON_UNSPECIFIED = 1, 1187 IEEE80211_REASON_AUTH_EXPIRE = 2, 1188 IEEE80211_REASON_AUTH_LEAVE = 3, 1189 IEEE80211_REASON_ASSOC_EXPIRE = 4, 1190 IEEE80211_REASON_ASSOC_TOOMANY = 5, 1191 IEEE80211_REASON_NOT_AUTHED = 6, 1192 IEEE80211_REASON_NOT_ASSOCED = 7, 1193 IEEE80211_REASON_ASSOC_LEAVE = 8, 1194 IEEE80211_REASON_ASSOC_NOT_AUTHED = 9, 1195 IEEE80211_REASON_DISASSOC_PWRCAP_BAD = 10, /* 11h */ 1196 IEEE80211_REASON_DISASSOC_SUPCHAN_BAD = 11, /* 11h */ 1197 IEEE80211_REASON_IE_INVALID = 13, /* 11i */ 1198 IEEE80211_REASON_MIC_FAILURE = 14, /* 11i */ 1199 IEEE80211_REASON_4WAY_HANDSHAKE_TIMEOUT = 15, /* 11i */ 1200 IEEE80211_REASON_GROUP_KEY_UPDATE_TIMEOUT = 16, /* 11i */ 1201 IEEE80211_REASON_IE_IN_4WAY_DIFFERS = 17, /* 11i */ 1202 IEEE80211_REASON_GROUP_CIPHER_INVALID = 18, /* 11i */ 1203 IEEE80211_REASON_PAIRWISE_CIPHER_INVALID= 19, /* 11i */ 1204 IEEE80211_REASON_AKMP_INVALID = 20, /* 11i */ 1205 IEEE80211_REASON_UNSUPP_RSN_IE_VERSION = 21, /* 11i */ 1206 IEEE80211_REASON_INVALID_RSN_IE_CAP = 22, /* 11i */ 1207 IEEE80211_REASON_802_1X_AUTH_FAILED = 23, /* 11i */ 1208 IEEE80211_REASON_CIPHER_SUITE_REJECTED = 24, /* 11i */ 1209 IEEE80211_REASON_UNSPECIFIED_QOS = 32, /* 11e */ 1210 IEEE80211_REASON_INSUFFICIENT_BW = 33, /* 11e */ 1211 IEEE80211_REASON_TOOMANY_FRAMES = 34, /* 11e */ 1212 IEEE80211_REASON_OUTSIDE_TXOP = 35, /* 11e */ 1213 IEEE80211_REASON_LEAVING_QBSS = 36, /* 11e */ 1214 IEEE80211_REASON_BAD_MECHANISM = 37, /* 11e */ 1215 IEEE80211_REASON_SETUP_NEEDED = 38, /* 11e */ 1216 IEEE80211_REASON_TIMEOUT = 39, /* 11e */ 1217 1218 IEEE80211_REASON_PEER_LINK_CANCELED = 52, /* 11s */ 1219 IEEE80211_REASON_MESH_MAX_PEERS = 53, /* 11s */ 1220 IEEE80211_REASON_MESH_CPVIOLATION = 54, /* 11s */ 1221 IEEE80211_REASON_MESH_CLOSE_RCVD = 55, /* 11s */ 1222 IEEE80211_REASON_MESH_MAX_RETRIES = 56, /* 11s */ 1223 IEEE80211_REASON_MESH_CONFIRM_TIMEOUT = 57, /* 11s */ 1224 IEEE80211_REASON_MESH_INVALID_GTK = 58, /* 11s */ 1225 IEEE80211_REASON_MESH_INCONS_PARAMS = 59, /* 11s */ 1226 IEEE80211_REASON_MESH_INVALID_SECURITY = 60, /* 11s */ 1227 IEEE80211_REASON_MESH_PERR_NO_PROXY = 61, /* 11s */ 1228 IEEE80211_REASON_MESH_PERR_NO_FI = 62, /* 11s */ 1229 IEEE80211_REASON_MESH_PERR_DEST_UNREACH = 63, /* 11s */ 1230 IEEE80211_REASON_MESH_MAC_ALRDY_EXISTS_MBSS = 64, /* 11s */ 1231 IEEE80211_REASON_MESH_CHAN_SWITCH_REG = 65, /* 11s */ 1232 IEEE80211_REASON_MESH_CHAN_SWITCH_UNSPEC = 66, /* 11s */ 1233 1234 IEEE80211_STATUS_SUCCESS = 0, 1235 IEEE80211_STATUS_UNSPECIFIED = 1, 1236 IEEE80211_STATUS_CAPINFO = 10, 1237 IEEE80211_STATUS_NOT_ASSOCED = 11, 1238 IEEE80211_STATUS_OTHER = 12, 1239 IEEE80211_STATUS_ALG = 13, 1240 IEEE80211_STATUS_SEQUENCE = 14, 1241 IEEE80211_STATUS_CHALLENGE = 15, 1242 IEEE80211_STATUS_TIMEOUT = 16, 1243 IEEE80211_STATUS_TOOMANY = 17, 1244 IEEE80211_STATUS_BASIC_RATE = 18, 1245 IEEE80211_STATUS_SP_REQUIRED = 19, /* 11b */ 1246 IEEE80211_STATUS_PBCC_REQUIRED = 20, /* 11b */ 1247 IEEE80211_STATUS_CA_REQUIRED = 21, /* 11b */ 1248 IEEE80211_STATUS_SPECMGMT_REQUIRED = 22, /* 11h */ 1249 IEEE80211_STATUS_PWRCAP_REQUIRED = 23, /* 11h */ 1250 IEEE80211_STATUS_SUPCHAN_REQUIRED = 24, /* 11h */ 1251 IEEE80211_STATUS_SHORTSLOT_REQUIRED = 25, /* 11g */ 1252 IEEE80211_STATUS_DSSSOFDM_REQUIRED = 26, /* 11g */ 1253 IEEE80211_STATUS_MISSING_HT_CAPS = 27, /* 11n D3.0 */ 1254 IEEE80211_STATUS_INVALID_IE = 40, /* 11i */ 1255 IEEE80211_STATUS_GROUP_CIPHER_INVALID = 41, /* 11i */ 1256 IEEE80211_STATUS_PAIRWISE_CIPHER_INVALID = 42, /* 11i */ 1257 IEEE80211_STATUS_AKMP_INVALID = 43, /* 11i */ 1258 IEEE80211_STATUS_UNSUPP_RSN_IE_VERSION = 44, /* 11i */ 1259 IEEE80211_STATUS_INVALID_RSN_IE_CAP = 45, /* 11i */ 1260 IEEE80211_STATUS_CIPHER_SUITE_REJECTED = 46, /* 11i */ 1261}; 1262 1263#define IEEE80211_WEP_KEYLEN 5 /* 40bit */ 1264#define IEEE80211_WEP_IVLEN 3 /* 24bit */ 1265#define IEEE80211_WEP_KIDLEN 1 /* 1 octet */ 1266#define IEEE80211_WEP_CRCLEN 4 /* CRC-32 */ 1267#define IEEE80211_WEP_TOTLEN (IEEE80211_WEP_IVLEN + \ 1268 IEEE80211_WEP_KIDLEN + \ 1269 IEEE80211_WEP_CRCLEN) 1270#define IEEE80211_WEP_NKID 4 /* number of key ids */ 1271 1272/* 1273 * 802.11i defines an extended IV for use with non-WEP ciphers. 1274 * When the EXTIV bit is set in the key id byte an additional 1275 * 4 bytes immediately follow the IV for TKIP. For CCMP the 1276 * EXTIV bit is likewise set but the 8 bytes represent the 1277 * CCMP header rather than IV+extended-IV. 1278 */ 1279#define IEEE80211_WEP_EXTIV 0x20 1280#define IEEE80211_WEP_EXTIVLEN 4 /* extended IV length */ 1281#define IEEE80211_WEP_MICLEN 8 /* trailing MIC */ 1282 1283#define IEEE80211_CRC_LEN 4 1284 1285/* 1286 * Maximum acceptable MTU is: 1287 * IEEE80211_MAX_LEN - WEP overhead - CRC - 1288 * QoS overhead - RSN/WPA overhead 1289 * Min is arbitrarily chosen > IEEE80211_MIN_LEN. The default 1290 * mtu is Ethernet-compatible; it's set by ether_ifattach. 1291 */ 1292#define IEEE80211_MTU_MAX 2290 1293#define IEEE80211_MTU_MIN 32 1294 1295#define IEEE80211_MAX_LEN (2300 + IEEE80211_CRC_LEN + \ 1296 (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN)) 1297#define IEEE80211_ACK_LEN \ 1298 (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN) 1299#define IEEE80211_MIN_LEN \ 1300 (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN) 1301 1302/* 1303 * The 802.11 spec says at most 2007 stations may be 1304 * associated at once. For most AP's this is way more 1305 * than is feasible so we use a default of IEEE80211_AID_DEF. 1306 * This number may be overridden by the driver and/or by 1307 * user configuration but may not be less than IEEE80211_AID_MIN 1308 * (see _ieee80211.h for implementation-specific settings). 1309 */ 1310#define IEEE80211_AID_MAX 2007 1311 1312#define IEEE80211_AID(b) ((b) &~ 0xc000) 1313 1314/* 1315 * RTS frame length parameters. The default is specified in 1316 * the 802.11 spec as 512; we treat it as implementation-dependent 1317 * so it's defined in ieee80211_var.h. The max may be wrong 1318 * for jumbo frames. 1319 */ 1320#define IEEE80211_RTS_MIN 1 1321#define IEEE80211_RTS_MAX 2346 1322 1323/* 1324 * TX fragmentation parameters. As above for RTS, we treat 1325 * default as implementation-dependent so define it elsewhere. 1326 */ 1327#define IEEE80211_FRAG_MIN 256 1328#define IEEE80211_FRAG_MAX 2346 1329 1330/* 1331 * Beacon interval (TU's). Min+max come from WiFi requirements. 1332 * As above, we treat default as implementation-dependent so 1333 * define it elsewhere. 1334 */ 1335#define IEEE80211_BINTVAL_MAX 1000 /* max beacon interval (TU's) */ 1336#define IEEE80211_BINTVAL_MIN 25 /* min beacon interval (TU's) */ 1337 1338/* 1339 * DTIM period (beacons). Min+max are not really defined 1340 * by the protocol but we want them publicly visible so 1341 * define them here. 1342 */ 1343#define IEEE80211_DTIM_MAX 15 /* max DTIM period */ 1344#define IEEE80211_DTIM_MIN 1 /* min DTIM period */ 1345 1346/* 1347 * Beacon miss threshold (beacons). As for DTIM, we define 1348 * them here to be publicly visible. Note the max may be 1349 * clamped depending on device capabilities. 1350 */ 1351#define IEEE80211_HWBMISS_MIN 1 1352#define IEEE80211_HWBMISS_MAX 255 1353 1354/* 1355 * 802.11 frame duration definitions. 1356 */ 1357 1358struct ieee80211_duration { 1359 uint16_t d_rts_dur; 1360 uint16_t d_data_dur; 1361 uint16_t d_plcp_len; 1362 uint8_t d_residue; /* unused octets in time slot */ 1363}; 1364 1365/* One Time Unit (TU) is 1Kus = 1024 microseconds. */ 1366#define IEEE80211_DUR_TU 1024 1367 1368/* IEEE 802.11b durations for DSSS PHY in microseconds */ 1369#define IEEE80211_DUR_DS_LONG_PREAMBLE 144 1370#define IEEE80211_DUR_DS_SHORT_PREAMBLE 72 1371 1372#define IEEE80211_DUR_DS_SLOW_PLCPHDR 48 1373#define IEEE80211_DUR_DS_FAST_PLCPHDR 24 1374#define IEEE80211_DUR_DS_SLOW_ACK 112 1375#define IEEE80211_DUR_DS_FAST_ACK 56 1376#define IEEE80211_DUR_DS_SLOW_CTS 112 1377#define IEEE80211_DUR_DS_FAST_CTS 56 1378 1379#define IEEE80211_DUR_DS_SLOT 20 1380#define IEEE80211_DUR_DS_SIFS 10 1381#define IEEE80211_DUR_DS_PIFS (IEEE80211_DUR_DS_SIFS + IEEE80211_DUR_DS_SLOT) 1382#define IEEE80211_DUR_DS_DIFS (IEEE80211_DUR_DS_SIFS + \ 1383 2 * IEEE80211_DUR_DS_SLOT) 1384#define IEEE80211_DUR_DS_EIFS (IEEE80211_DUR_DS_SIFS + \ 1385 IEEE80211_DUR_DS_SLOW_ACK + \ 1386 IEEE80211_DUR_DS_LONG_PREAMBLE + \ 1387 IEEE80211_DUR_DS_SLOW_PLCPHDR + \ 1388 IEEE80211_DUR_DIFS) 1389 1390#endif /* _NET80211_IEEE80211_H_ */ 1391