ieee80211.h revision 193840
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: head/sys/net80211/ieee80211.h 193840 2009-06-09 16:32:07Z sam $ 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 39typedef uint16_t ieee80211_seq; 40 41/* IEEE 802.11 PLCP header */ 42struct ieee80211_plcp_hdr { 43 uint16_t i_sfd; 44 uint8_t i_signal; 45 uint8_t i_service; 46 uint16_t i_length; 47 uint16_t i_crc; 48} __packed; 49 50#define IEEE80211_PLCP_SFD 0xF3A0 51#define IEEE80211_PLCP_SERVICE 0x00 52#define IEEE80211_PLCP_SERVICE_LOCKED 0x04 53#define IEEE80211_PLCL_SERVICE_PBCC 0x08 54#define IEEE80211_PLCP_SERVICE_LENEXT5 0x20 55#define IEEE80211_PLCP_SERVICE_LENEXT6 0x40 56#define IEEE80211_PLCP_SERVICE_LENEXT7 0x80 57 58/* 59 * generic definitions for IEEE 802.11 frames 60 */ 61struct ieee80211_frame { 62 uint8_t i_fc[2]; 63 uint8_t i_dur[2]; 64 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 65 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 66 uint8_t i_addr3[IEEE80211_ADDR_LEN]; 67 uint8_t i_seq[2]; 68 /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */ 69 /* see below */ 70} __packed; 71 72struct ieee80211_qosframe { 73 uint8_t i_fc[2]; 74 uint8_t i_dur[2]; 75 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 76 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 77 uint8_t i_addr3[IEEE80211_ADDR_LEN]; 78 uint8_t i_seq[2]; 79 uint8_t i_qos[2]; 80 /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */ 81 /* see below */ 82} __packed; 83 84struct ieee80211_qoscntl { 85 uint8_t i_qos[2]; 86}; 87 88struct ieee80211_frame_addr4 { 89 uint8_t i_fc[2]; 90 uint8_t i_dur[2]; 91 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 92 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 93 uint8_t i_addr3[IEEE80211_ADDR_LEN]; 94 uint8_t i_seq[2]; 95 uint8_t i_addr4[IEEE80211_ADDR_LEN]; 96} __packed; 97 98 99struct ieee80211_qosframe_addr4 { 100 uint8_t i_fc[2]; 101 uint8_t i_dur[2]; 102 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 103 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 104 uint8_t i_addr3[IEEE80211_ADDR_LEN]; 105 uint8_t i_seq[2]; 106 uint8_t i_addr4[IEEE80211_ADDR_LEN]; 107 uint8_t i_qos[2]; 108} __packed; 109 110#define IEEE80211_FC0_VERSION_MASK 0x03 111#define IEEE80211_FC0_VERSION_SHIFT 0 112#define IEEE80211_FC0_VERSION_0 0x00 113#define IEEE80211_FC0_TYPE_MASK 0x0c 114#define IEEE80211_FC0_TYPE_SHIFT 2 115#define IEEE80211_FC0_TYPE_MGT 0x00 116#define IEEE80211_FC0_TYPE_CTL 0x04 117#define IEEE80211_FC0_TYPE_DATA 0x08 118 119#define IEEE80211_FC0_SUBTYPE_MASK 0xf0 120#define IEEE80211_FC0_SUBTYPE_SHIFT 4 121/* for TYPE_MGT */ 122#define IEEE80211_FC0_SUBTYPE_ASSOC_REQ 0x00 123#define IEEE80211_FC0_SUBTYPE_ASSOC_RESP 0x10 124#define IEEE80211_FC0_SUBTYPE_REASSOC_REQ 0x20 125#define IEEE80211_FC0_SUBTYPE_REASSOC_RESP 0x30 126#define IEEE80211_FC0_SUBTYPE_PROBE_REQ 0x40 127#define IEEE80211_FC0_SUBTYPE_PROBE_RESP 0x50 128#define IEEE80211_FC0_SUBTYPE_BEACON 0x80 129#define IEEE80211_FC0_SUBTYPE_ATIM 0x90 130#define IEEE80211_FC0_SUBTYPE_DISASSOC 0xa0 131#define IEEE80211_FC0_SUBTYPE_AUTH 0xb0 132#define IEEE80211_FC0_SUBTYPE_DEAUTH 0xc0 133#define IEEE80211_FC0_SUBTYPE_ACTION 0xd0 134/* for TYPE_CTL */ 135#define IEEE80211_FC0_SUBTYPE_BAR 0x80 136#define IEEE80211_FC0_SUBTYPE_BA 0x90 137#define IEEE80211_FC0_SUBTYPE_PS_POLL 0xa0 138#define IEEE80211_FC0_SUBTYPE_RTS 0xb0 139#define IEEE80211_FC0_SUBTYPE_CTS 0xc0 140#define IEEE80211_FC0_SUBTYPE_ACK 0xd0 141#define IEEE80211_FC0_SUBTYPE_CF_END 0xe0 142#define IEEE80211_FC0_SUBTYPE_CF_END_ACK 0xf0 143/* for TYPE_DATA (bit combination) */ 144#define IEEE80211_FC0_SUBTYPE_DATA 0x00 145#define IEEE80211_FC0_SUBTYPE_CF_ACK 0x10 146#define IEEE80211_FC0_SUBTYPE_CF_POLL 0x20 147#define IEEE80211_FC0_SUBTYPE_CF_ACPL 0x30 148#define IEEE80211_FC0_SUBTYPE_NODATA 0x40 149#define IEEE80211_FC0_SUBTYPE_CFACK 0x50 150#define IEEE80211_FC0_SUBTYPE_CFPOLL 0x60 151#define IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK 0x70 152#define IEEE80211_FC0_SUBTYPE_QOS 0x80 153#define IEEE80211_FC0_SUBTYPE_QOS_NULL 0xc0 154 155#define IEEE80211_FC1_DIR_MASK 0x03 156#define IEEE80211_FC1_DIR_NODS 0x00 /* STA->STA */ 157#define IEEE80211_FC1_DIR_TODS 0x01 /* STA->AP */ 158#define IEEE80211_FC1_DIR_FROMDS 0x02 /* AP ->STA */ 159#define IEEE80211_FC1_DIR_DSTODS 0x03 /* AP ->AP */ 160 161#define IEEE80211_IS_DSTODS(wh) \ 162 (((wh)->i_fc[1] & IEEE80211_FC1_DIR_MASK) == IEEE80211_FC1_DIR_DSTODS) 163 164#define IEEE80211_FC1_MORE_FRAG 0x04 165#define IEEE80211_FC1_RETRY 0x08 166#define IEEE80211_FC1_PWR_MGT 0x10 167#define IEEE80211_FC1_MORE_DATA 0x20 168#define IEEE80211_FC1_WEP 0x40 169#define IEEE80211_FC1_ORDER 0x80 170 171#define IEEE80211_SEQ_FRAG_MASK 0x000f 172#define IEEE80211_SEQ_FRAG_SHIFT 0 173#define IEEE80211_SEQ_SEQ_MASK 0xfff0 174#define IEEE80211_SEQ_SEQ_SHIFT 4 175#define IEEE80211_SEQ_RANGE 4096 176 177#define IEEE80211_SEQ_ADD(seq, incr) \ 178 (((seq) + (incr)) & (IEEE80211_SEQ_RANGE-1)) 179#define IEEE80211_SEQ_INC(seq) IEEE80211_SEQ_ADD(seq,1) 180#define IEEE80211_SEQ_SUB(a, b) \ 181 (((a) + IEEE80211_SEQ_RANGE - (b)) & (IEEE80211_SEQ_RANGE-1)) 182 183#define IEEE80211_SEQ_BA_RANGE 2048 /* 2^11 */ 184#define IEEE80211_SEQ_BA_BEFORE(a, b) \ 185 (IEEE80211_SEQ_SUB(b, a+1) < IEEE80211_SEQ_BA_RANGE-1) 186 187#define IEEE80211_NWID_LEN 32 188 189#define IEEE80211_QOS_TXOP 0x00ff 190/* bit 8 is reserved */ 191#define IEEE80211_QOS_AMSDU 0x80 192#define IEEE80211_QOS_AMSDU_S 7 193#define IEEE80211_QOS_ACKPOLICY 0x60 194#define IEEE80211_QOS_ACKPOLICY_S 5 195#define IEEE80211_QOS_ACKPOLICY_NOACK 0x20 /* No ACK required */ 196#define IEEE80211_QOS_ACKPOLICY_BA 0x60 /* Block ACK */ 197#define IEEE80211_QOS_EOSP 0x10 /* EndOfService Period*/ 198#define IEEE80211_QOS_EOSP_S 4 199#define IEEE80211_QOS_TID 0x0f 200 201/* does frame have QoS sequence control data */ 202#define IEEE80211_QOS_HAS_SEQ(wh) \ 203 (((wh)->i_fc[0] & \ 204 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == \ 205 (IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS)) 206 207/* 208 * WME/802.11e information element. 209 */ 210struct ieee80211_wme_info { 211 uint8_t wme_id; /* IEEE80211_ELEMID_VENDOR */ 212 uint8_t wme_len; /* length in bytes */ 213 uint8_t wme_oui[3]; /* 0x00, 0x50, 0xf2 */ 214 uint8_t wme_type; /* OUI type */ 215 uint8_t wme_subtype; /* OUI subtype */ 216 uint8_t wme_version; /* spec revision */ 217 uint8_t wme_info; /* QoS info */ 218} __packed; 219 220/* 221 * WME/802.11e Tspec Element 222 */ 223struct ieee80211_wme_tspec { 224 uint8_t ts_id; 225 uint8_t ts_len; 226 uint8_t ts_oui[3]; 227 uint8_t ts_oui_type; 228 uint8_t ts_oui_subtype; 229 uint8_t ts_version; 230 uint8_t ts_tsinfo[3]; 231 uint8_t ts_nom_msdu[2]; 232 uint8_t ts_max_msdu[2]; 233 uint8_t ts_min_svc[4]; 234 uint8_t ts_max_svc[4]; 235 uint8_t ts_inactv_intv[4]; 236 uint8_t ts_susp_intv[4]; 237 uint8_t ts_start_svc[4]; 238 uint8_t ts_min_rate[4]; 239 uint8_t ts_mean_rate[4]; 240 uint8_t ts_max_burst[4]; 241 uint8_t ts_min_phy[4]; 242 uint8_t ts_peak_rate[4]; 243 uint8_t ts_delay[4]; 244 uint8_t ts_surplus[2]; 245 uint8_t ts_medium_time[2]; 246} __packed; 247 248/* 249 * WME AC parameter field 250 */ 251struct ieee80211_wme_acparams { 252 uint8_t acp_aci_aifsn; 253 uint8_t acp_logcwminmax; 254 uint16_t acp_txop; 255} __packed; 256 257#define WME_NUM_AC 4 /* 4 AC categories */ 258#define WME_NUM_TID 16 /* 16 tids */ 259 260#define WME_PARAM_ACI 0x60 /* Mask for ACI field */ 261#define WME_PARAM_ACI_S 5 /* Shift for ACI field */ 262#define WME_PARAM_ACM 0x10 /* Mask for ACM bit */ 263#define WME_PARAM_ACM_S 4 /* Shift for ACM bit */ 264#define WME_PARAM_AIFSN 0x0f /* Mask for aifsn field */ 265#define WME_PARAM_AIFSN_S 0 /* Shift for aifsn field */ 266#define WME_PARAM_LOGCWMIN 0x0f /* Mask for CwMin field (in log) */ 267#define WME_PARAM_LOGCWMIN_S 0 /* Shift for CwMin field */ 268#define WME_PARAM_LOGCWMAX 0xf0 /* Mask for CwMax field (in log) */ 269#define WME_PARAM_LOGCWMAX_S 4 /* Shift for CwMax field */ 270 271#define WME_AC_TO_TID(_ac) ( \ 272 ((_ac) == WME_AC_VO) ? 6 : \ 273 ((_ac) == WME_AC_VI) ? 5 : \ 274 ((_ac) == WME_AC_BK) ? 1 : \ 275 0) 276 277#define TID_TO_WME_AC(_tid) ( \ 278 ((_tid) == 0 || (_tid) == 3) ? WME_AC_BE : \ 279 ((_tid) < 3) ? WME_AC_BK : \ 280 ((_tid) < 6) ? WME_AC_VI : \ 281 WME_AC_VO) 282 283/* 284 * WME Parameter Element 285 */ 286struct ieee80211_wme_param { 287 uint8_t param_id; 288 uint8_t param_len; 289 uint8_t param_oui[3]; 290 uint8_t param_oui_type; 291 uint8_t param_oui_subtype; 292 uint8_t param_version; 293 uint8_t param_qosInfo; 294#define WME_QOSINFO_COUNT 0x0f /* Mask for param count field */ 295 uint8_t param_reserved; 296 struct ieee80211_wme_acparams params_acParams[WME_NUM_AC]; 297} __packed; 298 299/* 300 * Management Notification Frame 301 */ 302struct ieee80211_mnf { 303 uint8_t mnf_category; 304 uint8_t mnf_action; 305 uint8_t mnf_dialog; 306 uint8_t mnf_status; 307} __packed; 308#define MNF_SETUP_REQ 0 309#define MNF_SETUP_RESP 1 310#define MNF_TEARDOWN 2 311 312/* 313 * 802.11n Management Action Frames 314 */ 315/* generic frame format */ 316struct ieee80211_action { 317 uint8_t ia_category; 318 uint8_t ia_action; 319} __packed; 320 321#define IEEE80211_ACTION_CAT_SM 0 /* Spectrum Management */ 322#define IEEE80211_ACTION_CAT_QOS 1 /* QoS */ 323#define IEEE80211_ACTION_CAT_DLS 2 /* DLS */ 324#define IEEE80211_ACTION_CAT_BA 3 /* BA */ 325#define IEEE80211_ACTION_CAT_HT 7 /* HT */ 326#define IEEE80211_ACTION_CAT_VENDOR 127 /* Vendor Specific */ 327 328#define IEEE80211_ACTION_HT_TXCHWIDTH 0 /* recommended xmit chan width*/ 329#define IEEE80211_ACTION_HT_MIMOPWRSAVE 1 /* MIMO power save */ 330 331/* HT - recommended transmission channel width */ 332struct ieee80211_action_ht_txchwidth { 333 struct ieee80211_action at_header; 334 uint8_t at_chwidth; 335} __packed; 336 337#define IEEE80211_A_HT_TXCHWIDTH_20 0 338#define IEEE80211_A_HT_TXCHWIDTH_2040 1 339 340/* HT - MIMO Power Save (NB: D2.04) */ 341struct ieee80211_action_ht_mimopowersave { 342 struct ieee80211_action am_header; 343 uint8_t am_control; 344} __packed; 345 346#define IEEE80211_A_HT_MIMOPWRSAVE_ENA 0x01 /* PS enabled */ 347#define IEEE80211_A_HT_MIMOPWRSAVE_MODE 0x02 348#define IEEE80211_A_HT_MIMOPWRSAVE_MODE_S 1 349#define IEEE80211_A_HT_MIMOPWRSAVE_DYNAMIC 0x02 /* Dynamic Mode */ 350#define IEEE80211_A_HT_MIMOPWRSAVE_STATIC 0x00 /* no SM packets */ 351/* bits 2-7 reserved */ 352 353/* Block Ack actions */ 354#define IEEE80211_ACTION_BA_ADDBA_REQUEST 0 /* ADDBA request */ 355#define IEEE80211_ACTION_BA_ADDBA_RESPONSE 1 /* ADDBA response */ 356#define IEEE80211_ACTION_BA_DELBA 2 /* DELBA */ 357 358/* Block Ack Parameter Set */ 359#define IEEE80211_BAPS_BUFSIZ 0xffc0 /* buffer size */ 360#define IEEE80211_BAPS_BUFSIZ_S 6 361#define IEEE80211_BAPS_TID 0x003c /* TID */ 362#define IEEE80211_BAPS_TID_S 2 363#define IEEE80211_BAPS_POLICY 0x0002 /* block ack policy */ 364#define IEEE80211_BAPS_POLICY_S 1 365 366#define IEEE80211_BAPS_POLICY_DELAYED (0<<IEEE80211_BAPS_POLICY_S) 367#define IEEE80211_BAPS_POLICY_IMMEDIATE (1<<IEEE80211_BAPS_POLICY_S) 368 369/* Block Ack Sequence Control */ 370#define IEEE80211_BASEQ_START 0xfff0 /* starting seqnum */ 371#define IEEE80211_BASEQ_START_S 4 372#define IEEE80211_BASEQ_FRAG 0x000f /* fragment number */ 373#define IEEE80211_BASEQ_FRAG_S 0 374 375/* Delayed Block Ack Parameter Set */ 376#define IEEE80211_DELBAPS_TID 0xf000 /* TID */ 377#define IEEE80211_DELBAPS_TID_S 12 378#define IEEE80211_DELBAPS_INIT 0x0800 /* initiator */ 379#define IEEE80211_DELBAPS_INIT_S 11 380 381/* BA - ADDBA request */ 382struct ieee80211_action_ba_addbarequest { 383 struct ieee80211_action rq_header; 384 uint8_t rq_dialogtoken; 385 uint16_t rq_baparamset; 386 uint16_t rq_batimeout; /* in TUs */ 387 uint16_t rq_baseqctl; 388} __packed; 389 390/* BA - ADDBA response */ 391struct ieee80211_action_ba_addbaresponse { 392 struct ieee80211_action rs_header; 393 uint8_t rs_dialogtoken; 394 uint16_t rs_statuscode; 395 uint16_t rs_baparamset; 396 uint16_t rs_batimeout; /* in TUs */ 397} __packed; 398 399/* BA - DELBA */ 400struct ieee80211_action_ba_delba { 401 struct ieee80211_action dl_header; 402 uint16_t dl_baparamset; 403 uint16_t dl_reasoncode; 404} __packed; 405 406/* BAR Control */ 407#define IEEE80211_BAR_TID 0xf000 /* TID */ 408#define IEEE80211_BAR_TID_S 12 409#define IEEE80211_BAR_COMP 0x0004 /* Compressed Bitmap */ 410#define IEEE80211_BAR_MTID 0x0002 /* Multi-TID */ 411#define IEEE80211_BAR_NOACK 0x0001 /* No-Ack policy */ 412 413/* BAR Starting Sequence Control */ 414#define IEEE80211_BAR_SEQ_START 0xfff0 /* starting seqnum */ 415#define IEEE80211_BAR_SEQ_START_S 4 416 417struct ieee80211_ba_request { 418 uint16_t rq_barctl; 419 uint16_t rq_barseqctl; 420} __packed; 421 422/* 423 * Control frames. 424 */ 425struct ieee80211_frame_min { 426 uint8_t i_fc[2]; 427 uint8_t i_dur[2]; 428 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 429 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 430 /* FCS */ 431} __packed; 432 433struct ieee80211_frame_rts { 434 uint8_t i_fc[2]; 435 uint8_t i_dur[2]; 436 uint8_t i_ra[IEEE80211_ADDR_LEN]; 437 uint8_t i_ta[IEEE80211_ADDR_LEN]; 438 /* FCS */ 439} __packed; 440 441struct ieee80211_frame_cts { 442 uint8_t i_fc[2]; 443 uint8_t i_dur[2]; 444 uint8_t i_ra[IEEE80211_ADDR_LEN]; 445 /* FCS */ 446} __packed; 447 448struct ieee80211_frame_ack { 449 uint8_t i_fc[2]; 450 uint8_t i_dur[2]; 451 uint8_t i_ra[IEEE80211_ADDR_LEN]; 452 /* FCS */ 453} __packed; 454 455struct ieee80211_frame_pspoll { 456 uint8_t i_fc[2]; 457 uint8_t i_aid[2]; 458 uint8_t i_bssid[IEEE80211_ADDR_LEN]; 459 uint8_t i_ta[IEEE80211_ADDR_LEN]; 460 /* FCS */ 461} __packed; 462 463struct ieee80211_frame_cfend { /* NB: also CF-End+CF-Ack */ 464 uint8_t i_fc[2]; 465 uint8_t i_dur[2]; /* should be zero */ 466 uint8_t i_ra[IEEE80211_ADDR_LEN]; 467 uint8_t i_bssid[IEEE80211_ADDR_LEN]; 468 /* FCS */ 469} __packed; 470 471struct ieee80211_frame_bar { 472 uint8_t i_fc[2]; 473 uint8_t i_dur[2]; 474 uint8_t i_ra[IEEE80211_ADDR_LEN]; 475 uint8_t i_ta[IEEE80211_ADDR_LEN]; 476 uint16_t i_ctl; 477 uint16_t i_seq; 478 /* FCS */ 479} __packed; 480 481/* 482 * BEACON management packets 483 * 484 * octet timestamp[8] 485 * octet beacon interval[2] 486 * octet capability information[2] 487 * information element 488 * octet elemid 489 * octet length 490 * octet information[length] 491 */ 492 493#define IEEE80211_BEACON_INTERVAL(beacon) \ 494 ((beacon)[8] | ((beacon)[9] << 8)) 495#define IEEE80211_BEACON_CAPABILITY(beacon) \ 496 ((beacon)[10] | ((beacon)[11] << 8)) 497 498#define IEEE80211_CAPINFO_ESS 0x0001 499#define IEEE80211_CAPINFO_IBSS 0x0002 500#define IEEE80211_CAPINFO_CF_POLLABLE 0x0004 501#define IEEE80211_CAPINFO_CF_POLLREQ 0x0008 502#define IEEE80211_CAPINFO_PRIVACY 0x0010 503#define IEEE80211_CAPINFO_SHORT_PREAMBLE 0x0020 504#define IEEE80211_CAPINFO_PBCC 0x0040 505#define IEEE80211_CAPINFO_CHNL_AGILITY 0x0080 506#define IEEE80211_CAPINFO_SPECTRUM_MGMT 0x0100 507/* bit 9 is reserved */ 508#define IEEE80211_CAPINFO_SHORT_SLOTTIME 0x0400 509#define IEEE80211_CAPINFO_RSN 0x0800 510/* bit 12 is reserved */ 511#define IEEE80211_CAPINFO_DSSSOFDM 0x2000 512/* bits 14-15 are reserved */ 513 514#define IEEE80211_CAPINFO_BITS \ 515 "\20\1ESS\2IBSS\3CF_POLLABLE\4CF_POLLREQ\5PRIVACY\6SHORT_PREAMBLE" \ 516 "\7PBCC\10CHNL_AGILITY\11SPECTRUM_MGMT\13SHORT_SLOTTIME\14RSN" \ 517 "\16DSSOFDM" 518 519/* 520 * 802.11i/WPA information element (maximally sized). 521 */ 522struct ieee80211_ie_wpa { 523 uint8_t wpa_id; /* IEEE80211_ELEMID_VENDOR */ 524 uint8_t wpa_len; /* length in bytes */ 525 uint8_t wpa_oui[3]; /* 0x00, 0x50, 0xf2 */ 526 uint8_t wpa_type; /* OUI type */ 527 uint16_t wpa_version; /* spec revision */ 528 uint32_t wpa_mcipher[1]; /* multicast/group key cipher */ 529 uint16_t wpa_uciphercnt; /* # pairwise key ciphers */ 530 uint32_t wpa_uciphers[8];/* ciphers */ 531 uint16_t wpa_authselcnt; /* authentication selector cnt*/ 532 uint32_t wpa_authsels[8];/* selectors */ 533 uint16_t wpa_caps; /* 802.11i capabilities */ 534 uint16_t wpa_pmkidcnt; /* 802.11i pmkid count */ 535 uint16_t wpa_pmkids[8]; /* 802.11i pmkids */ 536} __packed; 537 538/* 539 * 802.11n HT Capability IE 540 * NB: these reflect D1.10 541 */ 542struct ieee80211_ie_htcap { 543 uint8_t hc_id; /* element ID */ 544 uint8_t hc_len; /* length in bytes */ 545 uint16_t hc_cap; /* HT caps (see below) */ 546 uint8_t hc_param; /* HT params (see below) */ 547 uint8_t hc_mcsset[16]; /* supported MCS set */ 548 uint16_t hc_extcap; /* extended HT capabilities */ 549 uint32_t hc_txbf; /* txbf capabilities */ 550 uint8_t hc_antenna; /* antenna capabilities */ 551} __packed; 552 553/* HT capability flags (ht_cap) */ 554#define IEEE80211_HTCAP_LDPC 0x0001 /* LDPC supported */ 555#define IEEE80211_HTCAP_CHWIDTH40 0x0002 /* 20/40 supported */ 556#define IEEE80211_HTCAP_SMPS 0x000c /* SM Power Save mode */ 557#define IEEE80211_HTCAP_SMPS_OFF 0x000c /* disabled */ 558#define IEEE80211_HTCAP_SMPS_DYNAMIC 0x0004 /* send RTS first */ 559/* NB: SMPS value 2 is reserved */ 560#define IEEE80211_HTCAP_SMPS_ENA 0x0000 /* enabled (static mode) */ 561#define IEEE80211_HTCAP_GREENFIELD 0x0010 /* Greenfield supported */ 562#define IEEE80211_HTCAP_SHORTGI20 0x0020 /* Short GI in 20MHz */ 563#define IEEE80211_HTCAP_SHORTGI40 0x0040 /* Short GI in 40MHz */ 564#define IEEE80211_HTCAP_TXSTBC 0x0080 /* STBC tx ok */ 565#define IEEE80211_HTCAP_RXSTBC 0x0300 /* STBC rx support */ 566#define IEEE80211_HTCAP_RXSTBC_S 8 567#define IEEE80211_HTCAP_RXSTBC_1STREAM 0x0100 /* 1 spatial stream */ 568#define IEEE80211_HTCAP_RXSTBC_2STREAM 0x0200 /* 1-2 spatial streams*/ 569#define IEEE80211_HTCAP_RXSTBC_3STREAM 0x0300 /* 1-3 spatial streams*/ 570#define IEEE80211_HTCAP_DELBA 0x0400 /* HT DELBA supported */ 571#define IEEE80211_HTCAP_MAXAMSDU 0x0800 /* max A-MSDU length */ 572#define IEEE80211_HTCAP_MAXAMSDU_7935 0x0800 /* 7935 octets */ 573#define IEEE80211_HTCAP_MAXAMSDU_3839 0x0000 /* 3839 octets */ 574#define IEEE80211_HTCAP_DSSSCCK40 0x1000 /* DSSS/CCK in 40MHz */ 575#define IEEE80211_HTCAP_PSMP 0x2000 /* PSMP supported */ 576#define IEEE80211_HTCAP_40INTOLERANT 0x4000 /* 40MHz intolerant */ 577#define IEEE80211_HTCAP_LSIGTXOPPROT 0x8000 /* L-SIG TXOP prot */ 578 579#define IEEE80211_HTCAP_BITS \ 580 "\20\1LDPC\2CHWIDTH40\5GREENFIELD\6SHORTGI20\7SHORTGI40\10TXSTBC" \ 581 "\13DELBA\14AMSDU(7935)\15DSSSCCK40\16PSMP\1740INTOLERANT" \ 582 "\20LSIGTXOPPROT" 583 584/* HT parameters (hc_param) */ 585#define IEEE80211_HTCAP_MAXRXAMPDU 0x03 /* max rx A-MPDU factor */ 586#define IEEE80211_HTCAP_MAXRXAMPDU_S 0 587#define IEEE80211_HTCAP_MAXRXAMPDU_8K 0 588#define IEEE80211_HTCAP_MAXRXAMPDU_16K 1 589#define IEEE80211_HTCAP_MAXRXAMPDU_32K 2 590#define IEEE80211_HTCAP_MAXRXAMPDU_64K 3 591#define IEEE80211_HTCAP_MPDUDENSITY 0x1c /* min MPDU start spacing */ 592#define IEEE80211_HTCAP_MPDUDENSITY_S 2 593#define IEEE80211_HTCAP_MPDUDENSITY_NA 0 /* no time restriction */ 594#define IEEE80211_HTCAP_MPDUDENSITY_025 1 /* 1/4 us */ 595#define IEEE80211_HTCAP_MPDUDENSITY_05 2 /* 1/2 us */ 596#define IEEE80211_HTCAP_MPDUDENSITY_1 3 /* 1 us */ 597#define IEEE80211_HTCAP_MPDUDENSITY_2 4 /* 2 us */ 598#define IEEE80211_HTCAP_MPDUDENSITY_4 5 /* 4 us */ 599#define IEEE80211_HTCAP_MPDUDENSITY_8 6 /* 8 us */ 600#define IEEE80211_HTCAP_MPDUDENSITY_16 7 /* 16 us */ 601 602/* HT extended capabilities (hc_extcap) */ 603#define IEEE80211_HTCAP_PCO 0x0001 /* PCO capable */ 604#define IEEE80211_HTCAP_PCOTRANS 0x0006 /* PCO transition time */ 605#define IEEE80211_HTCAP_PCOTRANS_S 1 606#define IEEE80211_HTCAP_PCOTRANS_04 0x0002 /* 400 us */ 607#define IEEE80211_HTCAP_PCOTRANS_15 0x0004 /* 1.5 ms */ 608#define IEEE80211_HTCAP_PCOTRANS_5 0x0006 /* 5 ms */ 609/* bits 3-7 reserved */ 610#define IEEE80211_HTCAP_MCSFBACK 0x0300 /* MCS feedback */ 611#define IEEE80211_HTCAP_MCSFBACK_S 8 612#define IEEE80211_HTCAP_MCSFBACK_NONE 0x0000 /* nothing provided */ 613#define IEEE80211_HTCAP_MCSFBACK_UNSOL 0x0200 /* unsolicited feedback */ 614#define IEEE80211_HTCAP_MCSFBACK_MRQ 0x0300 /* " "+respond to MRQ */ 615#define IEEE80211_HTCAP_HTC 0x0400 /* +HTC support */ 616#define IEEE80211_HTCAP_RDR 0x0800 /* reverse direction responder*/ 617/* bits 12-15 reserved */ 618 619/* 620 * 802.11n HT Information IE 621 */ 622struct ieee80211_ie_htinfo { 623 uint8_t hi_id; /* element ID */ 624 uint8_t hi_len; /* length in bytes */ 625 uint8_t hi_ctrlchannel; /* primary channel */ 626 uint8_t hi_byte1; /* ht ie byte 1 */ 627 uint8_t hi_byte2; /* ht ie byte 2 */ 628 uint8_t hi_byte3; /* ht ie byte 3 */ 629 uint16_t hi_byte45; /* ht ie bytes 4+5 */ 630 uint8_t hi_basicmcsset[16]; /* basic MCS set */ 631} __packed; 632 633/* byte1 */ 634#define IEEE80211_HTINFO_2NDCHAN 0x03 /* secondary/ext chan offset */ 635#define IEEE80211_HTINFO_2NDCHAN_S 0 636#define IEEE80211_HTINFO_2NDCHAN_NONE 0x00 /* no secondary/ext channel */ 637#define IEEE80211_HTINFO_2NDCHAN_ABOVE 0x01 /* above private channel */ 638/* NB: 2 is reserved */ 639#define IEEE80211_HTINFO_2NDCHAN_BELOW 0x03 /* below primary channel */ 640#define IEEE80211_HTINFO_TXWIDTH 0x04 /* tx channel width */ 641#define IEEE80211_HTINFO_TXWIDTH_20 0x00 /* 20MHz width */ 642#define IEEE80211_HTINFO_TXWIDTH_2040 0x04 /* any supported width */ 643#define IEEE80211_HTINFO_RIFSMODE 0x08 /* Reduced IFS (RIFS) use */ 644#define IEEE80211_HTINFO_RIFSMODE_PROH 0x00 /* RIFS use prohibited */ 645#define IEEE80211_HTINFO_RIFSMODE_PERM 0x08 /* RIFS use permitted */ 646#define IEEE80211_HTINFO_PMSPONLY 0x10 /* PSMP required to associate */ 647#define IEEE80211_HTINFO_SIGRAN 0xe0 /* shortest Service Interval */ 648#define IEEE80211_HTINFO_SIGRAN_S 5 649#define IEEE80211_HTINFO_SIGRAN_5 0x00 /* 5 ms */ 650/* XXX add rest */ 651 652/* bytes 2+3 */ 653#define IEEE80211_HTINFO_OPMODE 0x03 /* operating mode */ 654#define IEEE80211_HTINFO_OPMODE_S 0 655#define IEEE80211_HTINFO_OPMODE_PURE 0x00 /* no protection */ 656#define IEEE80211_HTINFO_OPMODE_PROTOPT 0x01 /* protection optional */ 657#define IEEE80211_HTINFO_OPMODE_HT20PR 0x02 /* protection for HT20 sta's */ 658#define IEEE80211_HTINFO_OPMODE_MIXED 0x03 /* protection for legacy sta's*/ 659#define IEEE80211_HTINFO_NONGF_PRESENT 0x04 /* non-GF sta's present */ 660#define IEEE80211_HTINFO_TXBL 0x08 /* transmit burst limit */ 661#define IEEE80211_HTINFO_NONHT_PRESENT 0x10 /* non-HT sta's present */ 662/* bits 5-15 reserved */ 663 664/* bytes 4+5 */ 665#define IEEE80211_HTINFO_2NDARYBEACON 0x01 666#define IEEE80211_HTINFO_LSIGTXOPPROT 0x02 667#define IEEE80211_HTINFO_PCO_ACTIVE 0x04 668#define IEEE80211_HTINFO_40MHZPHASE 0x08 669 670/* byte5 */ 671#define IEEE80211_HTINFO_BASIC_STBCMCS 0x7f 672#define IEEE80211_HTINFO_BASIC_STBCMCS_S 0 673#define IEEE80211_HTINFO_DUALPROTECTED 0x80 674 675/* 676 * Management information element payloads. 677 */ 678 679enum { 680 IEEE80211_ELEMID_SSID = 0, 681 IEEE80211_ELEMID_RATES = 1, 682 IEEE80211_ELEMID_FHPARMS = 2, 683 IEEE80211_ELEMID_DSPARMS = 3, 684 IEEE80211_ELEMID_CFPARMS = 4, 685 IEEE80211_ELEMID_TIM = 5, 686 IEEE80211_ELEMID_IBSSPARMS = 6, 687 IEEE80211_ELEMID_COUNTRY = 7, 688 IEEE80211_ELEMID_CHALLENGE = 16, 689 /* 17-31 reserved for challenge text extension */ 690 IEEE80211_ELEMID_PWRCNSTR = 32, 691 IEEE80211_ELEMID_PWRCAP = 33, 692 IEEE80211_ELEMID_TPCREQ = 34, 693 IEEE80211_ELEMID_TPCREP = 35, 694 IEEE80211_ELEMID_SUPPCHAN = 36, 695 IEEE80211_ELEMID_CSA = 37, 696 IEEE80211_ELEMID_MEASREQ = 38, 697 IEEE80211_ELEMID_MEASREP = 39, 698 IEEE80211_ELEMID_QUIET = 40, 699 IEEE80211_ELEMID_IBSSDFS = 41, 700 IEEE80211_ELEMID_ERP = 42, 701 IEEE80211_ELEMID_HTCAP = 45, 702 IEEE80211_ELEMID_RSN = 48, 703 IEEE80211_ELEMID_XRATES = 50, 704 IEEE80211_ELEMID_HTINFO = 61, 705 IEEE80211_ELEMID_TPC = 150, 706 IEEE80211_ELEMID_CCKM = 156, 707 IEEE80211_ELEMID_VENDOR = 221, /* vendor private */ 708}; 709 710struct ieee80211_tim_ie { 711 uint8_t tim_ie; /* IEEE80211_ELEMID_TIM */ 712 uint8_t tim_len; 713 uint8_t tim_count; /* DTIM count */ 714 uint8_t tim_period; /* DTIM period */ 715 uint8_t tim_bitctl; /* bitmap control */ 716 uint8_t tim_bitmap[1]; /* variable-length bitmap */ 717} __packed; 718 719struct ieee80211_country_ie { 720 uint8_t ie; /* IEEE80211_ELEMID_COUNTRY */ 721 uint8_t len; 722 uint8_t cc[3]; /* ISO CC+(I)ndoor/(O)utdoor */ 723 struct { 724 uint8_t schan; /* starting channel */ 725 uint8_t nchan; /* number channels */ 726 uint8_t maxtxpwr; /* tx power cap */ 727 } __packed band[1]; /* sub bands (NB: var size) */ 728} __packed; 729 730#define IEEE80211_COUNTRY_MAX_BANDS 84 /* max possible bands */ 731#define IEEE80211_COUNTRY_MAX_SIZE \ 732 (sizeof(struct ieee80211_country_ie) + 3*(IEEE80211_COUNTRY_MAX_BANDS-1)) 733 734/* 735 * 802.11h Channel Switch Announcement (CSA). 736 */ 737struct ieee80211_csa_ie { 738 uint8_t csa_ie; /* IEEE80211_ELEMID_CHANSWITCHANN */ 739 uint8_t csa_len; 740 uint8_t csa_mode; /* Channel Switch Mode */ 741 uint8_t csa_newchan; /* New Channel Number */ 742 uint8_t csa_count; /* Channel Switch Count */ 743} __packed; 744 745/* 746 * Note the min acceptable CSA count is used to guard against 747 * malicious CSA injection in station mode. Defining this value 748 * as other than 0 violates the 11h spec. 749 */ 750#define IEEE80211_CSA_COUNT_MIN 2 751#define IEEE80211_CSA_COUNT_MAX 255 752 753/* rate set entries are in .5 Mb/s units, and potentially marked as basic */ 754#define IEEE80211_RATE_BASIC 0x80 755#define IEEE80211_RATE_VAL 0x7f 756 757/* EPR information element flags */ 758#define IEEE80211_ERP_NON_ERP_PRESENT 0x01 759#define IEEE80211_ERP_USE_PROTECTION 0x02 760#define IEEE80211_ERP_LONG_PREAMBLE 0x04 761 762#define IEEE80211_ERP_BITS \ 763 "\20\1NON_ERP_PRESENT\2USE_PROTECTION\3LONG_PREAMBLE" 764 765#define ATH_OUI 0x7f0300 /* Atheros OUI */ 766#define ATH_OUI_TYPE 0x01 /* Atheros protocol ie */ 767 768/* NB: Atheros allocated the OUI for this purpose ~2005 but beware ... */ 769#define TDMA_OUI ATH_OUI 770#define TDMA_OUI_TYPE 0x02 /* TDMA protocol ie */ 771 772#define BCM_OUI 0x4c9000 /* Broadcom OUI */ 773#define BCM_OUI_HTCAP 51 /* pre-draft HTCAP ie */ 774#define BCM_OUI_HTINFO 52 /* pre-draft HTINFO ie */ 775 776#define WPA_OUI 0xf25000 777#define WPA_OUI_TYPE 0x01 778#define WPA_VERSION 1 /* current supported version */ 779 780#define WPA_CSE_NULL 0x00 781#define WPA_CSE_WEP40 0x01 782#define WPA_CSE_TKIP 0x02 783#define WPA_CSE_CCMP 0x04 784#define WPA_CSE_WEP104 0x05 785 786#define WPA_ASE_NONE 0x00 787#define WPA_ASE_8021X_UNSPEC 0x01 788#define WPA_ASE_8021X_PSK 0x02 789 790#define WPS_OUI_TYPE 0x04 791 792#define RSN_OUI 0xac0f00 793#define RSN_VERSION 1 /* current supported version */ 794 795#define RSN_CSE_NULL 0x00 796#define RSN_CSE_WEP40 0x01 797#define RSN_CSE_TKIP 0x02 798#define RSN_CSE_WRAP 0x03 799#define RSN_CSE_CCMP 0x04 800#define RSN_CSE_WEP104 0x05 801 802#define RSN_ASE_NONE 0x00 803#define RSN_ASE_8021X_UNSPEC 0x01 804#define RSN_ASE_8021X_PSK 0x02 805 806#define RSN_CAP_PREAUTH 0x01 807 808#define WME_OUI 0xf25000 809#define WME_OUI_TYPE 0x02 810#define WME_INFO_OUI_SUBTYPE 0x00 811#define WME_PARAM_OUI_SUBTYPE 0x01 812#define WME_VERSION 1 813 814/* WME stream classes */ 815#define WME_AC_BE 0 /* best effort */ 816#define WME_AC_BK 1 /* background */ 817#define WME_AC_VI 2 /* video */ 818#define WME_AC_VO 3 /* voice */ 819 820/* 821 * AUTH management packets 822 * 823 * octet algo[2] 824 * octet seq[2] 825 * octet status[2] 826 * octet chal.id 827 * octet chal.length 828 * octet chal.text[253] NB: 1-253 bytes 829 */ 830 831/* challenge length for shared key auth */ 832#define IEEE80211_CHALLENGE_LEN 128 833 834#define IEEE80211_AUTH_ALG_OPEN 0x0000 835#define IEEE80211_AUTH_ALG_SHARED 0x0001 836#define IEEE80211_AUTH_ALG_LEAP 0x0080 837 838enum { 839 IEEE80211_AUTH_OPEN_REQUEST = 1, 840 IEEE80211_AUTH_OPEN_RESPONSE = 2, 841}; 842 843enum { 844 IEEE80211_AUTH_SHARED_REQUEST = 1, 845 IEEE80211_AUTH_SHARED_CHALLENGE = 2, 846 IEEE80211_AUTH_SHARED_RESPONSE = 3, 847 IEEE80211_AUTH_SHARED_PASS = 4, 848}; 849 850/* 851 * Reason and status codes. 852 * 853 * Reason codes are used in management frames to indicate why an 854 * action took place (e.g. on disassociation). Status codes are 855 * used in management frames to indicate the result of an operation. 856 * 857 * Unlisted codes are reserved 858 */ 859 860enum { 861 IEEE80211_REASON_UNSPECIFIED = 1, 862 IEEE80211_REASON_AUTH_EXPIRE = 2, 863 IEEE80211_REASON_AUTH_LEAVE = 3, 864 IEEE80211_REASON_ASSOC_EXPIRE = 4, 865 IEEE80211_REASON_ASSOC_TOOMANY = 5, 866 IEEE80211_REASON_NOT_AUTHED = 6, 867 IEEE80211_REASON_NOT_ASSOCED = 7, 868 IEEE80211_REASON_ASSOC_LEAVE = 8, 869 IEEE80211_REASON_ASSOC_NOT_AUTHED = 9, 870 IEEE80211_REASON_DISASSOC_PWRCAP_BAD = 10, /* 11h */ 871 IEEE80211_REASON_DISASSOC_SUPCHAN_BAD = 11, /* 11h */ 872 IEEE80211_REASON_IE_INVALID = 13, /* 11i */ 873 IEEE80211_REASON_MIC_FAILURE = 14, /* 11i */ 874 IEEE80211_REASON_4WAY_HANDSHAKE_TIMEOUT = 15, /* 11i */ 875 IEEE80211_REASON_GROUP_KEY_UPDATE_TIMEOUT = 16, /* 11i */ 876 IEEE80211_REASON_IE_IN_4WAY_DIFFERS = 17, /* 11i */ 877 IEEE80211_REASON_GROUP_CIPHER_INVALID = 18, /* 11i */ 878 IEEE80211_REASON_PAIRWISE_CIPHER_INVALID= 19, /* 11i */ 879 IEEE80211_REASON_AKMP_INVALID = 20, /* 11i */ 880 IEEE80211_REASON_UNSUPP_RSN_IE_VERSION = 21, /* 11i */ 881 IEEE80211_REASON_INVALID_RSN_IE_CAP = 22, /* 11i */ 882 IEEE80211_REASON_802_1X_AUTH_FAILED = 23, /* 11i */ 883 IEEE80211_REASON_CIPHER_SUITE_REJECTED = 24, /* 11i */ 884 IEEE80211_REASON_UNSPECIFIED_QOS = 32, /* 11e */ 885 IEEE80211_REASON_INSUFFICIENT_BW = 33, /* 11e */ 886 IEEE80211_REASON_TOOMANY_FRAMES = 34, /* 11e */ 887 IEEE80211_REASON_OUTSIDE_TXOP = 35, /* 11e */ 888 IEEE80211_REASON_LEAVING_QBSS = 36, /* 11e */ 889 IEEE80211_REASON_BAD_MECHANISM = 37, /* 11e */ 890 IEEE80211_REASON_SETUP_NEEDED = 38, /* 11e */ 891 IEEE80211_REASON_TIMEOUT = 39, /* 11e */ 892 893 IEEE80211_STATUS_SUCCESS = 0, 894 IEEE80211_STATUS_UNSPECIFIED = 1, 895 IEEE80211_STATUS_CAPINFO = 10, 896 IEEE80211_STATUS_NOT_ASSOCED = 11, 897 IEEE80211_STATUS_OTHER = 12, 898 IEEE80211_STATUS_ALG = 13, 899 IEEE80211_STATUS_SEQUENCE = 14, 900 IEEE80211_STATUS_CHALLENGE = 15, 901 IEEE80211_STATUS_TIMEOUT = 16, 902 IEEE80211_STATUS_TOOMANY = 17, 903 IEEE80211_STATUS_BASIC_RATE = 18, 904 IEEE80211_STATUS_SP_REQUIRED = 19, /* 11b */ 905 IEEE80211_STATUS_PBCC_REQUIRED = 20, /* 11b */ 906 IEEE80211_STATUS_CA_REQUIRED = 21, /* 11b */ 907 IEEE80211_STATUS_SPECMGMT_REQUIRED = 22, /* 11h */ 908 IEEE80211_STATUS_PWRCAP_REQUIRED = 23, /* 11h */ 909 IEEE80211_STATUS_SUPCHAN_REQUIRED = 24, /* 11h */ 910 IEEE80211_STATUS_SHORTSLOT_REQUIRED = 25, /* 11g */ 911 IEEE80211_STATUS_DSSSOFDM_REQUIRED = 26, /* 11g */ 912 IEEE80211_STATUS_MISSING_HT_CAPS = 27, /* 11n D3.0 */ 913 IEEE80211_STATUS_INVALID_IE = 40, /* 11i */ 914 IEEE80211_STATUS_GROUP_CIPHER_INVALID = 41, /* 11i */ 915 IEEE80211_STATUS_PAIRWISE_CIPHER_INVALID = 42, /* 11i */ 916 IEEE80211_STATUS_AKMP_INVALID = 43, /* 11i */ 917 IEEE80211_STATUS_UNSUPP_RSN_IE_VERSION = 44, /* 11i */ 918 IEEE80211_STATUS_INVALID_RSN_IE_CAP = 45, /* 11i */ 919 IEEE80211_STATUS_CIPHER_SUITE_REJECTED = 46, /* 11i */ 920}; 921 922#define IEEE80211_WEP_KEYLEN 5 /* 40bit */ 923#define IEEE80211_WEP_IVLEN 3 /* 24bit */ 924#define IEEE80211_WEP_KIDLEN 1 /* 1 octet */ 925#define IEEE80211_WEP_CRCLEN 4 /* CRC-32 */ 926#define IEEE80211_WEP_TOTLEN (IEEE80211_WEP_IVLEN + \ 927 IEEE80211_WEP_KIDLEN + \ 928 IEEE80211_WEP_CRCLEN) 929#define IEEE80211_WEP_NKID 4 /* number of key ids */ 930 931/* 932 * 802.11i defines an extended IV for use with non-WEP ciphers. 933 * When the EXTIV bit is set in the key id byte an additional 934 * 4 bytes immediately follow the IV for TKIP. For CCMP the 935 * EXTIV bit is likewise set but the 8 bytes represent the 936 * CCMP header rather than IV+extended-IV. 937 */ 938#define IEEE80211_WEP_EXTIV 0x20 939#define IEEE80211_WEP_EXTIVLEN 4 /* extended IV length */ 940#define IEEE80211_WEP_MICLEN 8 /* trailing MIC */ 941 942#define IEEE80211_CRC_LEN 4 943 944/* 945 * Maximum acceptable MTU is: 946 * IEEE80211_MAX_LEN - WEP overhead - CRC - 947 * QoS overhead - RSN/WPA overhead 948 * Min is arbitrarily chosen > IEEE80211_MIN_LEN. The default 949 * mtu is Ethernet-compatible; it's set by ether_ifattach. 950 */ 951#define IEEE80211_MTU_MAX 2290 952#define IEEE80211_MTU_MIN 32 953 954#define IEEE80211_MAX_LEN (2300 + IEEE80211_CRC_LEN + \ 955 (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN)) 956#define IEEE80211_ACK_LEN \ 957 (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN) 958#define IEEE80211_MIN_LEN \ 959 (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN) 960 961/* 962 * The 802.11 spec says at most 2007 stations may be 963 * associated at once. For most AP's this is way more 964 * than is feasible so we use a default of IEEE80211_AID_DEF. 965 * This number may be overridden by the driver and/or by 966 * user configuration but may not be less than IEEE80211_AID_MIN 967 * (see _ieee80211.h for implementation-specific settings). 968 */ 969#define IEEE80211_AID_MAX 2007 970 971#define IEEE80211_AID(b) ((b) &~ 0xc000) 972 973/* 974 * RTS frame length parameters. The default is specified in 975 * the 802.11 spec as 512; we treat it as implementation-dependent 976 * so it's defined in ieee80211_var.h. The max may be wrong 977 * for jumbo frames. 978 */ 979#define IEEE80211_RTS_MIN 1 980#define IEEE80211_RTS_MAX 2346 981 982/* 983 * TX fragmentation parameters. As above for RTS, we treat 984 * default as implementation-dependent so define it elsewhere. 985 */ 986#define IEEE80211_FRAG_MIN 256 987#define IEEE80211_FRAG_MAX 2346 988 989/* 990 * Beacon interval (TU's). Min+max come from WiFi requirements. 991 * As above, we treat default as implementation-dependent so 992 * define it elsewhere. 993 */ 994#define IEEE80211_BINTVAL_MAX 1000 /* max beacon interval (TU's) */ 995#define IEEE80211_BINTVAL_MIN 25 /* min beacon interval (TU's) */ 996 997/* 998 * DTIM period (beacons). Min+max are not really defined 999 * by the protocol but we want them publicly visible so 1000 * define them here. 1001 */ 1002#define IEEE80211_DTIM_MAX 15 /* max DTIM period */ 1003#define IEEE80211_DTIM_MIN 1 /* min DTIM period */ 1004 1005/* 1006 * Beacon miss threshold (beacons). As for DTIM, we define 1007 * them here to be publicly visible. Note the max may be 1008 * clamped depending on device capabilities. 1009 */ 1010#define IEEE80211_HWBMISS_MIN 1 1011#define IEEE80211_HWBMISS_MAX 255 1012 1013/* 1014 * 802.11 frame duration definitions. 1015 */ 1016 1017struct ieee80211_duration { 1018 uint16_t d_rts_dur; 1019 uint16_t d_data_dur; 1020 uint16_t d_plcp_len; 1021 uint8_t d_residue; /* unused octets in time slot */ 1022}; 1023 1024/* One Time Unit (TU) is 1Kus = 1024 microseconds. */ 1025#define IEEE80211_DUR_TU 1024 1026 1027/* IEEE 802.11b durations for DSSS PHY in microseconds */ 1028#define IEEE80211_DUR_DS_LONG_PREAMBLE 144 1029#define IEEE80211_DUR_DS_SHORT_PREAMBLE 72 1030 1031#define IEEE80211_DUR_DS_SLOW_PLCPHDR 48 1032#define IEEE80211_DUR_DS_FAST_PLCPHDR 24 1033#define IEEE80211_DUR_DS_SLOW_ACK 112 1034#define IEEE80211_DUR_DS_FAST_ACK 56 1035#define IEEE80211_DUR_DS_SLOW_CTS 112 1036#define IEEE80211_DUR_DS_FAST_CTS 56 1037 1038#define IEEE80211_DUR_DS_SLOT 20 1039#define IEEE80211_DUR_DS_SIFS 10 1040#define IEEE80211_DUR_DS_PIFS (IEEE80211_DUR_DS_SIFS + IEEE80211_DUR_DS_SLOT) 1041#define IEEE80211_DUR_DS_DIFS (IEEE80211_DUR_DS_SIFS + \ 1042 2 * IEEE80211_DUR_DS_SLOT) 1043#define IEEE80211_DUR_DS_EIFS (IEEE80211_DUR_DS_SIFS + \ 1044 IEEE80211_DUR_DS_SLOW_ACK + \ 1045 IEEE80211_DUR_DS_LONG_PREAMBLE + \ 1046 IEEE80211_DUR_DS_SLOW_PLCPHDR + \ 1047 IEEE80211_DUR_DIFS) 1048 1049#endif /* _NET80211_IEEE80211_H_ */ 1050