ieee80211.h revision 172055
1/*- 2 * Copyright (c) 2001 Atsushi Onoe 3 * Copyright (c) 2002-2007 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 172055 2007-09-05 20:29:51Z 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 39/* IEEE 802.11 PLCP header */ 40struct ieee80211_plcp_hdr { 41 uint16_t i_sfd; 42 uint8_t i_signal; 43 uint8_t i_service; 44 uint16_t i_length; 45 uint16_t i_crc; 46} __packed; 47 48#define IEEE80211_PLCP_SFD 0xF3A0 49#define IEEE80211_PLCP_SERVICE 0x00 50 51/* 52 * generic definitions for IEEE 802.11 frames 53 */ 54struct ieee80211_frame { 55 uint8_t i_fc[2]; 56 uint8_t i_dur[2]; 57 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 58 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 59 uint8_t i_addr3[IEEE80211_ADDR_LEN]; 60 uint8_t i_seq[2]; 61 /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */ 62 /* see below */ 63} __packed; 64 65struct ieee80211_qosframe { 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 uint8_t i_qos[2]; 73 /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */ 74 /* see below */ 75} __packed; 76 77struct ieee80211_qoscntl { 78 uint8_t i_qos[2]; 79}; 80 81struct ieee80211_frame_addr4 { 82 uint8_t i_fc[2]; 83 uint8_t i_dur[2]; 84 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 85 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 86 uint8_t i_addr3[IEEE80211_ADDR_LEN]; 87 uint8_t i_seq[2]; 88 uint8_t i_addr4[IEEE80211_ADDR_LEN]; 89} __packed; 90 91 92struct ieee80211_qosframe_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 uint8_t i_qos[2]; 101} __packed; 102 103#define IEEE80211_FC0_VERSION_MASK 0x03 104#define IEEE80211_FC0_VERSION_SHIFT 0 105#define IEEE80211_FC0_VERSION_0 0x00 106#define IEEE80211_FC0_TYPE_MASK 0x0c 107#define IEEE80211_FC0_TYPE_SHIFT 2 108#define IEEE80211_FC0_TYPE_MGT 0x00 109#define IEEE80211_FC0_TYPE_CTL 0x04 110#define IEEE80211_FC0_TYPE_DATA 0x08 111 112#define IEEE80211_FC0_SUBTYPE_MASK 0xf0 113#define IEEE80211_FC0_SUBTYPE_SHIFT 4 114/* for TYPE_MGT */ 115#define IEEE80211_FC0_SUBTYPE_ASSOC_REQ 0x00 116#define IEEE80211_FC0_SUBTYPE_ASSOC_RESP 0x10 117#define IEEE80211_FC0_SUBTYPE_REASSOC_REQ 0x20 118#define IEEE80211_FC0_SUBTYPE_REASSOC_RESP 0x30 119#define IEEE80211_FC0_SUBTYPE_PROBE_REQ 0x40 120#define IEEE80211_FC0_SUBTYPE_PROBE_RESP 0x50 121#define IEEE80211_FC0_SUBTYPE_BEACON 0x80 122#define IEEE80211_FC0_SUBTYPE_ATIM 0x90 123#define IEEE80211_FC0_SUBTYPE_DISASSOC 0xa0 124#define IEEE80211_FC0_SUBTYPE_AUTH 0xb0 125#define IEEE80211_FC0_SUBTYPE_DEAUTH 0xc0 126#define IEEE80211_FC0_SUBTYPE_ACTION 0xd0 127/* for TYPE_CTL */ 128#define IEEE80211_FC0_SUBTYPE_BAR 0x80 129#define IEEE80211_FC0_SUBTYPE_PS_POLL 0xa0 130#define IEEE80211_FC0_SUBTYPE_RTS 0xb0 131#define IEEE80211_FC0_SUBTYPE_CTS 0xc0 132#define IEEE80211_FC0_SUBTYPE_ACK 0xd0 133#define IEEE80211_FC0_SUBTYPE_CF_END 0xe0 134#define IEEE80211_FC0_SUBTYPE_CF_END_ACK 0xf0 135/* for TYPE_DATA (bit combination) */ 136#define IEEE80211_FC0_SUBTYPE_DATA 0x00 137#define IEEE80211_FC0_SUBTYPE_CF_ACK 0x10 138#define IEEE80211_FC0_SUBTYPE_CF_POLL 0x20 139#define IEEE80211_FC0_SUBTYPE_CF_ACPL 0x30 140#define IEEE80211_FC0_SUBTYPE_NODATA 0x40 141#define IEEE80211_FC0_SUBTYPE_CFACK 0x50 142#define IEEE80211_FC0_SUBTYPE_CFPOLL 0x60 143#define IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK 0x70 144#define IEEE80211_FC0_SUBTYPE_QOS 0x80 145#define IEEE80211_FC0_SUBTYPE_QOS_NULL 0xc0 146 147#define IEEE80211_FC1_DIR_MASK 0x03 148#define IEEE80211_FC1_DIR_NODS 0x00 /* STA->STA */ 149#define IEEE80211_FC1_DIR_TODS 0x01 /* STA->AP */ 150#define IEEE80211_FC1_DIR_FROMDS 0x02 /* AP ->STA */ 151#define IEEE80211_FC1_DIR_DSTODS 0x03 /* AP ->AP */ 152 153#define IEEE80211_FC1_MORE_FRAG 0x04 154#define IEEE80211_FC1_RETRY 0x08 155#define IEEE80211_FC1_PWR_MGT 0x10 156#define IEEE80211_FC1_MORE_DATA 0x20 157#define IEEE80211_FC1_WEP 0x40 158#define IEEE80211_FC1_ORDER 0x80 159 160#define IEEE80211_SEQ_FRAG_MASK 0x000f 161#define IEEE80211_SEQ_FRAG_SHIFT 0 162#define IEEE80211_SEQ_SEQ_MASK 0xfff0 163#define IEEE80211_SEQ_SEQ_SHIFT 4 164#define IEEE80211_SEQ_RANGE 4096 165 166#define IEEE80211_SEQ_ADD(seq, incr) \ 167 (((seq) + (incr)) & (IEEE80211_SEQ_RANGE-1)) 168#define IEEE80211_SEQ_INC(seq) IEEE80211_SEQ_ADD(seq,1) 169#define IEEE80211_SEQ_SUB(a, b) \ 170 (((a) + IEEE80211_SEQ_RANGE - (b)) & (IEEE80211_SEQ_RANGE-1)) 171 172#define IEEE80211_NWID_LEN 32 173 174#define IEEE80211_QOS_TXOP 0x00ff 175/* bit 8 is reserved */ 176#define IEEE80211_QOS_AMSDU 0x80 177#define IEEE80211_QOS_AMSDU_S 7 178#define IEEE80211_QOS_ACKPOLICY 0x60 179#define IEEE80211_QOS_ACKPOLICY_S 5 180#define IEEE80211_QOS_ACKPOLICY_NOACK 0x20 /* No ACK required */ 181#define IEEE80211_QOS_ACKPOLICY_BA 0x60 /* Block ACK */ 182#define IEEE80211_QOS_ESOP 0x10 183#define IEEE80211_QOS_ESOP_S 4 184#define IEEE80211_QOS_TID 0x0f 185 186/* does frame have QoS sequence control data */ 187#define IEEE80211_QOS_HAS_SEQ(wh) \ 188 (((wh)->i_fc[0] & \ 189 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == \ 190 (IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS)) 191 192/* 193 * WME/802.11e information element. 194 */ 195struct ieee80211_wme_info { 196 uint8_t wme_id; /* IEEE80211_ELEMID_VENDOR */ 197 uint8_t wme_len; /* length in bytes */ 198 uint8_t wme_oui[3]; /* 0x00, 0x50, 0xf2 */ 199 uint8_t wme_type; /* OUI type */ 200 uint8_t wme_subtype; /* OUI subtype */ 201 uint8_t wme_version; /* spec revision */ 202 uint8_t wme_info; /* QoS info */ 203} __packed; 204 205/* 206 * WME/802.11e Tspec Element 207 */ 208struct ieee80211_wme_tspec { 209 uint8_t ts_id; 210 uint8_t ts_len; 211 uint8_t ts_oui[3]; 212 uint8_t ts_oui_type; 213 uint8_t ts_oui_subtype; 214 uint8_t ts_version; 215 uint8_t ts_tsinfo[3]; 216 uint8_t ts_nom_msdu[2]; 217 uint8_t ts_max_msdu[2]; 218 uint8_t ts_min_svc[4]; 219 uint8_t ts_max_svc[4]; 220 uint8_t ts_inactv_intv[4]; 221 uint8_t ts_susp_intv[4]; 222 uint8_t ts_start_svc[4]; 223 uint8_t ts_min_rate[4]; 224 uint8_t ts_mean_rate[4]; 225 uint8_t ts_max_burst[4]; 226 uint8_t ts_min_phy[4]; 227 uint8_t ts_peak_rate[4]; 228 uint8_t ts_delay[4]; 229 uint8_t ts_surplus[2]; 230 uint8_t ts_medium_time[2]; 231} __packed; 232 233/* 234 * WME AC parameter field 235 */ 236struct ieee80211_wme_acparams { 237 uint8_t acp_aci_aifsn; 238 uint8_t acp_logcwminmax; 239 uint16_t acp_txop; 240} __packed; 241 242#define WME_NUM_AC 4 /* 4 AC categories */ 243#define WME_NUM_TID 16 /* 16 tids */ 244 245#define WME_PARAM_ACI 0x60 /* Mask for ACI field */ 246#define WME_PARAM_ACI_S 5 /* Shift for ACI field */ 247#define WME_PARAM_ACM 0x10 /* Mask for ACM bit */ 248#define WME_PARAM_ACM_S 4 /* Shift for ACM bit */ 249#define WME_PARAM_AIFSN 0x0f /* Mask for aifsn field */ 250#define WME_PARAM_AIFSN_S 0 /* Shift for aifsn field */ 251#define WME_PARAM_LOGCWMIN 0x0f /* Mask for CwMin field (in log) */ 252#define WME_PARAM_LOGCWMIN_S 0 /* Shift for CwMin field */ 253#define WME_PARAM_LOGCWMAX 0xf0 /* Mask for CwMax field (in log) */ 254#define WME_PARAM_LOGCWMAX_S 4 /* Shift for CwMax field */ 255 256#define WME_AC_TO_TID(_ac) ( \ 257 ((_ac) == WME_AC_VO) ? 6 : \ 258 ((_ac) == WME_AC_VI) ? 5 : \ 259 ((_ac) == WME_AC_BK) ? 1 : \ 260 0) 261 262#define TID_TO_WME_AC(_tid) ( \ 263 ((_tid) < 1) ? WME_AC_BE : \ 264 ((_tid) < 3) ? WME_AC_BK : \ 265 ((_tid) < 6) ? WME_AC_VI : \ 266 WME_AC_VO) 267 268/* 269 * WME Parameter Element 270 */ 271struct ieee80211_wme_param { 272 uint8_t param_id; 273 uint8_t param_len; 274 uint8_t param_oui[3]; 275 uint8_t param_oui_type; 276 uint8_t param_oui_subtype; 277 uint8_t param_version; 278 uint8_t param_qosInfo; 279#define WME_QOSINFO_COUNT 0x0f /* Mask for param count field */ 280 uint8_t param_reserved; 281 struct ieee80211_wme_acparams params_acParams[WME_NUM_AC]; 282} __packed; 283 284/* 285 * Management Notification Frame 286 */ 287struct ieee80211_mnf { 288 uint8_t mnf_category; 289 uint8_t mnf_action; 290 uint8_t mnf_dialog; 291 uint8_t mnf_status; 292} __packed; 293#define MNF_SETUP_REQ 0 294#define MNF_SETUP_RESP 1 295#define MNF_TEARDOWN 2 296 297/* 298 * 802.11n Management Action Frames 299 */ 300/* generic frame format */ 301struct ieee80211_action { 302 uint8_t ia_category; 303 uint8_t ia_action; 304} __packed; 305 306#define IEEE80211_ACTION_CAT_QOS 0 /* QoS */ 307#define IEEE80211_ACTION_CAT_BA 3 /* BA */ 308#define IEEE80211_ACTION_CAT_HT 7 /* HT */ 309 310#define IEEE80211_ACTION_HT_TXCHWIDTH 0 /* recommended xmit chan width*/ 311#define IEEE80211_ACTION_HT_MIMOPWRSAVE 1 /* MIMO power save */ 312 313/* HT - recommended transmission channel width */ 314struct ieee80211_action_ht_txchwidth { 315 struct ieee80211_action at_header; 316 uint8_t at_chwidth; 317} __packed; 318 319#define IEEE80211_A_HT_TXCHWIDTH_20 0 320#define IEEE80211_A_HT_TXCHWIDTH_2040 1 321 322/* HT - MIMO Power Save (NB: D2.04) */ 323struct ieee80211_action_ht_mimopowersave { 324 struct ieee80211_action am_header; 325 uint8_t am_enable; 326 uint8_t am_mode; 327} __packed; 328 329/* Block Ack actions */ 330#define IEEE80211_ACTION_BA_ADDBA_REQUEST 0 /* ADDBA request */ 331#define IEEE80211_ACTION_BA_ADDBA_RESPONSE 1 /* ADDBA response */ 332#define IEEE80211_ACTION_BA_DELBA 2 /* DELBA */ 333 334/* Block Ack Parameter Set */ 335#define IEEE80211_BAPS_BUFSIZ 0xffc0 /* buffer size */ 336#define IEEE80211_BAPS_BUFSIZ_S 6 337#define IEEE80211_BAPS_TID 0x003c /* TID */ 338#define IEEE80211_BAPS_TID_S 2 339#define IEEE80211_BAPS_POLICY 0x0002 /* block ack policy */ 340#define IEEE80211_BAPS_POLICY_S 1 341 342#define IEEE80211_BAPS_POLICY_DELAYED (0<<IEEE80211_BAPS_POLICY_S) 343#define IEEE80211_BAPS_POLICY_IMMEDIATE (1<<IEEE80211_BAPS_POLICY_S) 344 345/* Block Ack Sequence Control */ 346#define IEEE80211_BASEQ_START 0xfff0 /* starting seqnum */ 347#define IEEE80211_BASEQ_START_S 4 348#define IEEE80211_BASEQ_FRAG 0x000f /* fragment number */ 349#define IEEE80211_BASEQ_FRAG_S 0 350 351/* Delayed Block Ack Parameter Set */ 352#define IEEE80211_DELBAPS_TID 0xf000 /* TID */ 353#define IEEE80211_DELBAPS_TID_S 12 354#define IEEE80211_DELBAPS_INIT 0x0800 /* initiator */ 355#define IEEE80211_DELBAPS_INIT_S 11 356 357/* BA - ADDBA request */ 358struct ieee80211_action_ba_addbarequest { 359 struct ieee80211_action rq_header; 360 uint8_t rq_dialogtoken; 361 uint16_t rq_baparamset; 362 uint16_t rq_batimeout; /* in TUs */ 363 uint16_t rq_baseqctl; 364} __packed; 365 366/* BA - ADDBA response */ 367struct ieee80211_action_ba_addbaresponse { 368 struct ieee80211_action rs_header; 369 uint8_t rs_dialogtoken; 370 uint16_t rs_statuscode; 371 uint16_t rs_baparamset; 372 uint16_t rs_batimeout; /* in TUs */ 373} __packed; 374 375/* BA - DELBA */ 376struct ieee80211_action_ba_delba { 377 struct ieee80211_action dl_header; 378 uint16_t dl_baparamset; 379 uint16_t dl_reasoncode; 380} __packed; 381 382/* BAR Control */ 383#define IEEE80211_BAR_TID 0xf000 /* TID */ 384#define IEEE80211_BAR_TID_S 12 385#define IEEE80211_BAR_COMP 0x0004 /* compressed */ 386#define IEEE80211_BAR_MTID 0x0002 387#define IEEE80211_BAR_NOACK 0x0001 /* no-ack policy */ 388 389struct ieee80211_ba_request { 390 uint16_t rq_barctl; 391 uint16_t rq_barseqctl; 392} __packed; 393 394/* 395 * Control frames. 396 */ 397struct ieee80211_frame_min { 398 uint8_t i_fc[2]; 399 uint8_t i_dur[2]; 400 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 401 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 402 /* FCS */ 403} __packed; 404 405struct ieee80211_frame_rts { 406 uint8_t i_fc[2]; 407 uint8_t i_dur[2]; 408 uint8_t i_ra[IEEE80211_ADDR_LEN]; 409 uint8_t i_ta[IEEE80211_ADDR_LEN]; 410 /* FCS */ 411} __packed; 412 413struct ieee80211_frame_cts { 414 uint8_t i_fc[2]; 415 uint8_t i_dur[2]; 416 uint8_t i_ra[IEEE80211_ADDR_LEN]; 417 /* FCS */ 418} __packed; 419 420struct ieee80211_frame_ack { 421 uint8_t i_fc[2]; 422 uint8_t i_dur[2]; 423 uint8_t i_ra[IEEE80211_ADDR_LEN]; 424 /* FCS */ 425} __packed; 426 427struct ieee80211_frame_pspoll { 428 uint8_t i_fc[2]; 429 uint8_t i_aid[2]; 430 uint8_t i_bssid[IEEE80211_ADDR_LEN]; 431 uint8_t i_ta[IEEE80211_ADDR_LEN]; 432 /* FCS */ 433} __packed; 434 435struct ieee80211_frame_cfend { /* NB: also CF-End+CF-Ack */ 436 uint8_t i_fc[2]; 437 uint8_t i_dur[2]; /* should be zero */ 438 uint8_t i_ra[IEEE80211_ADDR_LEN]; 439 uint8_t i_bssid[IEEE80211_ADDR_LEN]; 440 /* FCS */ 441} __packed; 442 443struct ieee80211_frame_bar { 444 uint8_t i_fc[2]; 445 uint8_t i_dur[2]; 446 uint8_t i_ra[IEEE80211_ADDR_LEN]; 447 uint8_t i_ta[IEEE80211_ADDR_LEN]; 448 uint16_t i_ctl; 449 uint16_t i_seq; 450 /* FCS */ 451} __packed; 452 453/* 454 * BEACON management packets 455 * 456 * octet timestamp[8] 457 * octet beacon interval[2] 458 * octet capability information[2] 459 * information element 460 * octet elemid 461 * octet length 462 * octet information[length] 463 */ 464 465#define IEEE80211_BEACON_INTERVAL(beacon) \ 466 ((beacon)[8] | ((beacon)[9] << 8)) 467#define IEEE80211_BEACON_CAPABILITY(beacon) \ 468 ((beacon)[10] | ((beacon)[11] << 8)) 469 470#define IEEE80211_CAPINFO_ESS 0x0001 471#define IEEE80211_CAPINFO_IBSS 0x0002 472#define IEEE80211_CAPINFO_CF_POLLABLE 0x0004 473#define IEEE80211_CAPINFO_CF_POLLREQ 0x0008 474#define IEEE80211_CAPINFO_PRIVACY 0x0010 475#define IEEE80211_CAPINFO_SHORT_PREAMBLE 0x0020 476#define IEEE80211_CAPINFO_PBCC 0x0040 477#define IEEE80211_CAPINFO_CHNL_AGILITY 0x0080 478#define IEEE80211_CAPINFO_SPECTRUM_MGMT 0x0100 479/* bit 9 is reserved */ 480#define IEEE80211_CAPINFO_SHORT_SLOTTIME 0x0400 481#define IEEE80211_CAPINFO_RSN 0x0800 482/* bit 12 is reserved */ 483#define IEEE80211_CAPINFO_DSSSOFDM 0x2000 484/* bits 14-15 are reserved */ 485 486/* 487 * 802.11i/WPA information element (maximally sized). 488 */ 489struct ieee80211_ie_wpa { 490 uint8_t wpa_id; /* IEEE80211_ELEMID_VENDOR */ 491 uint8_t wpa_len; /* length in bytes */ 492 uint8_t wpa_oui[3]; /* 0x00, 0x50, 0xf2 */ 493 uint8_t wpa_type; /* OUI type */ 494 uint16_t wpa_version; /* spec revision */ 495 uint32_t wpa_mcipher[1]; /* multicast/group key cipher */ 496 uint16_t wpa_uciphercnt; /* # pairwise key ciphers */ 497 uint32_t wpa_uciphers[8];/* ciphers */ 498 uint16_t wpa_authselcnt; /* authentication selector cnt*/ 499 uint32_t wpa_authsels[8];/* selectors */ 500 uint16_t wpa_caps; /* 802.11i capabilities */ 501 uint16_t wpa_pmkidcnt; /* 802.11i pmkid count */ 502 uint16_t wpa_pmkids[8]; /* 802.11i pmkids */ 503} __packed; 504 505/* 506 * 802.11n HT Capability IE 507 * NB: these reflect D1.10 508 */ 509struct ieee80211_ie_htcap { 510 uint8_t hc_id; /* element ID */ 511 uint8_t hc_len; /* length in bytes */ 512 uint16_t hc_cap; /* HT caps (see below) */ 513 uint8_t hc_param; /* HT params (see below) */ 514 uint8_t hc_mcsset[16]; /* supported MCS set */ 515 uint16_t hc_extcap; /* extended HT capabilities */ 516 uint32_t hc_txbf; /* txbf capabilities */ 517 uint8_t hc_antenna; /* antenna capabilities */ 518} __packed; 519 520/* HT capability flags (ht_cap) */ 521#define IEEE80211_HTCAP_LDPC 0x0001 /* LDPC supported */ 522#define IEEE80211_HTCAP_CHWIDTH40 0x0002 /* 20/40 supported */ 523#define IEEE80211_HTCAP_SMPS 0x000c /* SM Power Save mode */ 524#define IEEE80211_HTCAP_SMPS_OFF 0x0000 /* none (static mode) */ 525#define IEEE80211_HTCAP_SMPS_DYNAMIC 0x0004 /* send RTS first */ 526/* NB: SMPS value 2 is reserved */ 527#define IEEE80211_HTCAP_SMPS_ENA 0x000c /* enabled */ 528#define IEEE80211_HTCAP_GREENFIELD 0x0010 /* Greenfield supported */ 529#define IEEE80211_HTCAP_SHORTGI20 0x0020 /* Short GI in 20MHz */ 530#define IEEE80211_HTCAP_SHORTGI40 0x0040 /* Short GI in 40MHz */ 531#define IEEE80211_HTCAP_TXSTBC 0x0080 /* STBC tx ok */ 532#define IEEE80211_HTCAP_RXSTBC 0x0300 /* STBC rx support */ 533#define IEEE80211_HTCAP_RXSTBC_S 8 534#define IEEE80211_HTCAP_RXSTBC_1STREAM 0x0100 /* 1 spatial stream */ 535#define IEEE80211_HTCAP_RXSTBC_2STREAM 0x0200 /* 1-2 spatial streams*/ 536#define IEEE80211_HTCAP_RXSTBC_3STREAM 0x0300 /* 1-3 spatial streams*/ 537#define IEEE80211_HTCAP_DELBA 0x0400 /* HT DELBA supported */ 538#define IEEE80211_HTCAP_MAXAMSDU 0x0800 /* max A-MSDU length */ 539#define IEEE80211_HTCAP_MAXAMSDU_7935 0x0800 /* 7935 octets */ 540#define IEEE80211_HTCAP_MAXAMSDU_3839 0x0000 /* 3839 octets */ 541#define IEEE80211_HTCAP_DSSSCCK40 0x1000 /* DSSS/CCK in 40MHz */ 542#define IEEE80211_HTCAP_PSMP 0x2000 /* PSMP supported */ 543#define IEEE80211_HTCAP_40INTOLERANT 0x4000 /* 40MHz intolerant */ 544#define IEEE80211_HTCAP_LSIGTXOPPROT 0x8000 /* L-SIG TXOP prot */ 545 546/* HT parameters (hc_param) */ 547#define IEEE80211_HTCAP_MAXRXAMPDU 0x03 /* max rx A-MPDU factor */ 548#define IEEE80211_HTCAP_MAXRXAMPDU_S 0 549#define IEEE80211_HTCAP_MAXRXAMPDU_8K 0x00 550#define IEEE80211_HTCAP_MAXRXAMPDU_16K 0x01 551#define IEEE80211_HTCAP_MAXRXAMPDU_32K 0x02 552#define IEEE80211_HTCAP_MAXRXAMPDU_64K 0x03 553#define IEEE80211_HTCAP_MPDUDENSITY 0x1c /* min MPDU start spacing */ 554#define IEEE80211_HTCAP_MPDUDENSITY_S 2 555#define IEEE80211_HTCAP_MPDUDENSITY_NA 0x00 /* no time restriction */ 556#define IEEE80211_HTCAP_MPDUDENSITY_025 0x04 /* 1/4 us */ 557#define IEEE80211_HTCAP_MPDUDENSITY_05 0x08 /* 1/2 us */ 558#define IEEE80211_HTCAP_MPDUDENSITY_1 0x0c /* 1 us */ 559#define IEEE80211_HTCAP_MPDUDENSITY_2 0x10 /* 2 us */ 560#define IEEE80211_HTCAP_MPDUDENSITY_4 0x14 /* 4 us */ 561#define IEEE80211_HTCAP_MPDUDENSITY_8 0x18 /* 8 us */ 562#define IEEE80211_HTCAP_MPDUDENSITY_16 0x1c /* 16 us */ 563 564/* HT extended capabilities (hc_extcap) */ 565#define IEEE80211_HTCAP_PCO 0x0001 /* PCO capable */ 566#define IEEE80211_HTCAP_PCOTRANS 0x0006 /* PCO transition time */ 567#define IEEE80211_HTCAP_PCOTRANS_S 1 568#define IEEE80211_HTCAP_PCOTRANS_04 0x0002 /* 400 us */ 569#define IEEE80211_HTCAP_PCOTRANS_15 0x0004 /* 1.5 ms */ 570#define IEEE80211_HTCAP_PCOTRANS_5 0x0006 /* 5 ms */ 571/* bits 3-7 reserved */ 572#define IEEE80211_HTCAP_MCSFBACK 0x0300 /* MCS feedback */ 573#define IEEE80211_HTCAP_MCSFBACK_S 8 574#define IEEE80211_HTCAP_MCSFBACK_NONE 0x0000 /* nothing provided */ 575#define IEEE80211_HTCAP_MCSFBACK_UNSOL 0x0200 /* unsolicited feedback */ 576#define IEEE80211_HTCAP_MCSFBACK_MRQ 0x0300 /* " "+respond to MRQ */ 577#define IEEE80211_HTCAP_HTC 0x0400 /* +HTC support */ 578#define IEEE80211_HTCAP_RDR 0x0800 /* reverse direction responder*/ 579/* bits 12-15 reserved */ 580 581/* 582 * 802.11n HT Information IE 583 */ 584struct ieee80211_ie_htinfo { 585 uint8_t hi_id; /* element ID */ 586 uint8_t hi_len; /* length in bytes */ 587 uint8_t hi_ctrlchannel; /* primary channel */ 588 uint8_t hi_byte1; /* ht ie byte 1 */ 589 uint8_t hi_byte2; /* ht ie byte 2 */ 590 uint8_t hi_byte3; /* ht ie byte 3 */ 591 uint16_t hi_byte45; /* ht ie bytes 4+5 */ 592 uint8_t hi_basicmcsset[16]; /* basic MCS set */ 593} __packed; 594 595/* byte1 */ 596#define IEEE80211_HTINFO_2NDCHAN 0x03 /* secondary/ext chan offset */ 597#define IEEE80211_HTINFO_2NDCHAN_S 0 598#define IEEE80211_HTINFO_2NDCHAN_NONE 0x00 /* no secondary/ext channel */ 599#define IEEE80211_HTINFO_2NDCHAN_ABOVE 0x01 /* above private channel */ 600/* NB: 2 is reserved */ 601#define IEEE80211_HTINFO_2NDCHAN_BELOW 0x03 /* below primary channel */ 602#define IEEE80211_HTINFO_TXWIDTH 0x04 /* tx channel width */ 603#define IEEE80211_HTINFO_TXWIDTH_20 0x00 /* 20MHz width */ 604#define IEEE80211_HTINFO_TXWIDTH_2040 0x04 /* any supported width */ 605#define IEEE80211_HTINFO_RIFSMODE 0x08 /* Reduced IFS (RIFS) use */ 606#define IEEE80211_HTINFO_RIFSMODE_PROH 0x00 /* RIFS use prohibited */ 607#define IEEE80211_HTINFO_RIFSMODE_PERM 0x08 /* RIFS use permitted */ 608#define IEEE80211_HTINFO_PMSPONLY 0x10 /* PSMP required to associate */ 609#define IEEE80211_HTINFO_SIGRAN 0xe0 /* shortest Service Interval */ 610#define IEEE80211_HTINFO_SIGRAN_S 5 611#define IEEE80211_HTINFO_SIGRAN_5 0x00 /* 5 ms */ 612/* XXX add rest */ 613 614/* bytes 2+3 */ 615#define IEEE80211_HTINFO_OPMODE 0x03 /* operating mode */ 616#define IEEE80211_HTINFO_OPMODE_S 0 617#define IEEE80211_HTINFO_OPMODE_PURE 0x00 /* no protection */ 618#define IEEE80211_HTINFO_OPMODE_PROTOPT 0x01 /* protection optional */ 619#define IEEE80211_HTINFO_OPMODE_HT20PR 0x02 /* protection for HT20 sta's */ 620#define IEEE80211_HTINFO_OPMODE_MIXED 0x03 /* protection for legacy sta's*/ 621#define IEEE80211_HTINFO_NONGF_PRESENT 0x04 /* non-GF sta's present */ 622#define IEEE80211_HTINFO_TXBL 0x08 /* transmit burst limit */ 623#define IEEE80211_HTINFO_NONHT_PRESENT 0x10 /* non-HT sta's present */ 624/* bits 5-15 reserved */ 625 626/* bytes 4+5 */ 627#define IEEE80211_HTINFO_2NDARYBEACON 0x01 628#define IEEE80211_HTINFO_LSIGTXOPPROT 0x02 629#define IEEE80211_HTINFO_PCO_ACTIVE 0x04 630#define IEEE80211_HTINFO_40MHZPHASE 0x08 631 632/* byte5 */ 633#define IEEE80211_HTINFO_BASIC_STBCMCS 0x7f 634#define IEEE80211_HTINFO_BASIC_STBCMCS_S 0 635#define IEEE80211_HTINFO_DUALPROTECTED 0x80 636 637/* 638 * Management information element payloads. 639 */ 640 641enum { 642 IEEE80211_ELEMID_SSID = 0, 643 IEEE80211_ELEMID_RATES = 1, 644 IEEE80211_ELEMID_FHPARMS = 2, 645 IEEE80211_ELEMID_DSPARMS = 3, 646 IEEE80211_ELEMID_CFPARMS = 4, 647 IEEE80211_ELEMID_TIM = 5, 648 IEEE80211_ELEMID_IBSSPARMS = 6, 649 IEEE80211_ELEMID_COUNTRY = 7, 650 IEEE80211_ELEMID_CHALLENGE = 16, 651 /* 17-31 reserved for challenge text extension */ 652 IEEE80211_ELEMID_PWRCNSTR = 32, 653 IEEE80211_ELEMID_PWRCAP = 33, 654 IEEE80211_ELEMID_TPCREQ = 34, 655 IEEE80211_ELEMID_TPCREP = 35, 656 IEEE80211_ELEMID_SUPPCHAN = 36, 657 IEEE80211_ELEMID_CHANSWITCHANN = 37, 658 IEEE80211_ELEMID_MEASREQ = 38, 659 IEEE80211_ELEMID_MEASREP = 39, 660 IEEE80211_ELEMID_QUIET = 40, 661 IEEE80211_ELEMID_IBSSDFS = 41, 662 IEEE80211_ELEMID_ERP = 42, 663 IEEE80211_ELEMID_HTCAP = 45, 664 IEEE80211_ELEMID_RSN = 48, 665 IEEE80211_ELEMID_XRATES = 50, 666 IEEE80211_ELEMID_HTINFO = 61, 667 IEEE80211_ELEMID_TPC = 150, 668 IEEE80211_ELEMID_CCKM = 156, 669 IEEE80211_ELEMID_VENDOR = 221, /* vendor private */ 670}; 671 672struct ieee80211_tim_ie { 673 uint8_t tim_ie; /* IEEE80211_ELEMID_TIM */ 674 uint8_t tim_len; 675 uint8_t tim_count; /* DTIM count */ 676 uint8_t tim_period; /* DTIM period */ 677 uint8_t tim_bitctl; /* bitmap control */ 678 uint8_t tim_bitmap[1]; /* variable-length bitmap */ 679} __packed; 680 681struct ieee80211_country_ie { 682 uint8_t ie; /* IEEE80211_ELEMID_COUNTRY */ 683 uint8_t len; 684 uint8_t cc[3]; /* ISO CC+(I)ndoor/(O)utdoor */ 685 struct { 686 uint8_t schan; /* starting channel */ 687 uint8_t nchan; /* number channels */ 688 uint8_t maxtxpwr; /* tx power cap */ 689 } __packed band[4]; /* up to 4 sub bands */ 690} __packed; 691 692/* 693 * 802.11h Channel Switch Announcement (CSA). 694 */ 695struct ieee80211_csa_ie { 696 uint8_t csa_ie; /* IEEE80211_ELEMID_CHANSWITCHANN */ 697 uint8_t csa_len; 698 uint8_t csa_mode; /* Channel Switch Mode */ 699 uint8_t csa_newchan; /* New Channel Number */ 700 uint8_t csa_count; /* Channel Switch Count */ 701} __packed; 702 703/* 704 * Atheros advanced capability information element. 705 */ 706struct ieee80211_ath_ie { 707 uint8_t ath_id; /* IEEE80211_ELEMID_VENDOR */ 708 uint8_t ath_len; /* length in bytes */ 709 uint8_t ath_oui[3]; /* 0x00, 0x03, 0x7f */ 710 uint8_t ath_oui_type; /* OUI type */ 711 uint8_t ath_oui_subtype; /* OUI subtype */ 712 uint8_t ath_version; /* spec revision */ 713 uint8_t ath_capability; /* capability info */ 714#define ATHEROS_CAP_TURBO_PRIME 0x01 /* dynamic turbo--aka Turbo' */ 715#define ATHEROS_CAP_COMPRESSION 0x02 /* data compression */ 716#define ATHEROS_CAP_FAST_FRAME 0x04 /* fast (jumbo) frames */ 717#define ATHEROS_CAP_XR 0x08 /* Xtended Range support */ 718#define ATHEROS_CAP_AR 0x10 /* Advanded Radar support */ 719#define ATHEROS_CAP_BURST 0x20 /* Bursting - not negotiated */ 720#define ATHEROS_CAP_WME 0x40 /* CWMin tuning */ 721#define ATHEROS_CAP_BOOST 0x80 /* use turbo/!turbo mode */ 722 uint8_t ath_defkeyix[2]; 723} __packed; 724 725/* rate set entries are in .5 Mb/s units, and potentially marked as basic */ 726#define IEEE80211_RATE_BASIC 0x80 727#define IEEE80211_RATE_VAL 0x7f 728 729/* EPR information element flags */ 730#define IEEE80211_ERP_NON_ERP_PRESENT 0x01 731#define IEEE80211_ERP_USE_PROTECTION 0x02 732#define IEEE80211_ERP_LONG_PREAMBLE 0x04 733 734#define ATH_OUI 0x7f0300 /* Atheros OUI */ 735#define ATH_OUI_TYPE 0x01 736#define ATH_OUI_SUBTYPE 0x01 737#define ATH_OUI_VERSION 0x00 738 739#define BCM_OUI 0x4c9000 /* Broadcom OUI */ 740#define BCM_OUI_HTCAP 51 /* pre-draft HTCAP ie */ 741#define BCM_OUI_HTINFO 52 /* pre-draft HTINFO ie */ 742 743#define WPA_OUI 0xf25000 744#define WPA_OUI_TYPE 0x01 745#define WPA_VERSION 1 /* current supported version */ 746 747#define WPA_CSE_NULL 0x00 748#define WPA_CSE_WEP40 0x01 749#define WPA_CSE_TKIP 0x02 750#define WPA_CSE_CCMP 0x04 751#define WPA_CSE_WEP104 0x05 752 753#define WPA_ASE_NONE 0x00 754#define WPA_ASE_8021X_UNSPEC 0x01 755#define WPA_ASE_8021X_PSK 0x02 756 757#define RSN_OUI 0xac0f00 758#define RSN_VERSION 1 /* current supported version */ 759 760#define RSN_CSE_NULL 0x00 761#define RSN_CSE_WEP40 0x01 762#define RSN_CSE_TKIP 0x02 763#define RSN_CSE_WRAP 0x03 764#define RSN_CSE_CCMP 0x04 765#define RSN_CSE_WEP104 0x05 766 767#define RSN_ASE_NONE 0x00 768#define RSN_ASE_8021X_UNSPEC 0x01 769#define RSN_ASE_8021X_PSK 0x02 770 771#define RSN_CAP_PREAUTH 0x01 772 773#define WME_OUI 0xf25000 774#define WME_OUI_TYPE 0x02 775#define WME_INFO_OUI_SUBTYPE 0x00 776#define WME_PARAM_OUI_SUBTYPE 0x01 777#define WME_VERSION 1 778 779/* WME stream classes */ 780#define WME_AC_BE 0 /* best effort */ 781#define WME_AC_BK 1 /* background */ 782#define WME_AC_VI 2 /* video */ 783#define WME_AC_VO 3 /* voice */ 784 785/* 786 * AUTH management packets 787 * 788 * octet algo[2] 789 * octet seq[2] 790 * octet status[2] 791 * octet chal.id 792 * octet chal.length 793 * octet chal.text[253] NB: 1-253 bytes 794 */ 795 796/* challenge length for shared key auth */ 797#define IEEE80211_CHALLENGE_LEN 128 798 799#define IEEE80211_AUTH_ALG_OPEN 0x0000 800#define IEEE80211_AUTH_ALG_SHARED 0x0001 801#define IEEE80211_AUTH_ALG_LEAP 0x0080 802 803enum { 804 IEEE80211_AUTH_OPEN_REQUEST = 1, 805 IEEE80211_AUTH_OPEN_RESPONSE = 2, 806}; 807 808enum { 809 IEEE80211_AUTH_SHARED_REQUEST = 1, 810 IEEE80211_AUTH_SHARED_CHALLENGE = 2, 811 IEEE80211_AUTH_SHARED_RESPONSE = 3, 812 IEEE80211_AUTH_SHARED_PASS = 4, 813}; 814 815/* 816 * Reason and status codes. 817 * 818 * Reason codes are used in management frames to indicate why an 819 * action took place (e.g. on disassociation). Status codes are 820 * used in management frames to indicate the result of an operation. 821 * 822 * Unlisted codes are reserved 823 */ 824 825enum { 826 IEEE80211_REASON_UNSPECIFIED = 1, 827 IEEE80211_REASON_AUTH_EXPIRE = 2, 828 IEEE80211_REASON_AUTH_LEAVE = 3, 829 IEEE80211_REASON_ASSOC_EXPIRE = 4, 830 IEEE80211_REASON_ASSOC_TOOMANY = 5, 831 IEEE80211_REASON_NOT_AUTHED = 6, 832 IEEE80211_REASON_NOT_ASSOCED = 7, 833 IEEE80211_REASON_ASSOC_LEAVE = 8, 834 IEEE80211_REASON_ASSOC_NOT_AUTHED = 9, 835 IEEE80211_REASON_DISASSOC_PWRCAP_BAD = 10, /* 11h */ 836 IEEE80211_REASON_DISASSOC_SUPCHAN_BAD = 11, /* 11h */ 837 IEEE80211_REASON_IE_INVALID = 13, /* 11i */ 838 IEEE80211_REASON_MIC_FAILURE = 14, /* 11i */ 839 IEEE80211_REASON_4WAY_HANDSHAKE_TIMEOUT = 15, /* 11i */ 840 IEEE80211_REASON_GROUP_KEY_UPDATE_TIMEOUT = 16, /* 11i */ 841 IEEE80211_REASON_IE_IN_4WAY_DIFFERS = 17, /* 11i */ 842 IEEE80211_REASON_GROUP_CIPHER_INVALID = 18, /* 11i */ 843 IEEE80211_REASON_PAIRWISE_CIPHER_INVALID= 19, /* 11i */ 844 IEEE80211_REASON_AKMP_INVALID = 20, /* 11i */ 845 IEEE80211_REASON_UNSUPP_RSN_IE_VERSION = 21, /* 11i */ 846 IEEE80211_REASON_INVALID_RSN_IE_CAP = 22, /* 11i */ 847 IEEE80211_REASON_802_1X_AUTH_FAILED = 23, /* 11i */ 848 IEEE80211_REASON_CIPHER_SUITE_REJECTED = 24, /* 11i */ 849 850 IEEE80211_STATUS_SUCCESS = 0, 851 IEEE80211_STATUS_UNSPECIFIED = 1, 852 IEEE80211_STATUS_CAPINFO = 10, 853 IEEE80211_STATUS_NOT_ASSOCED = 11, 854 IEEE80211_STATUS_OTHER = 12, 855 IEEE80211_STATUS_ALG = 13, 856 IEEE80211_STATUS_SEQUENCE = 14, 857 IEEE80211_STATUS_CHALLENGE = 15, 858 IEEE80211_STATUS_TIMEOUT = 16, 859 IEEE80211_STATUS_TOOMANY = 17, 860 IEEE80211_STATUS_BASIC_RATE = 18, 861 IEEE80211_STATUS_SP_REQUIRED = 19, /* 11b */ 862 IEEE80211_STATUS_PBCC_REQUIRED = 20, /* 11b */ 863 IEEE80211_STATUS_CA_REQUIRED = 21, /* 11b */ 864 IEEE80211_STATUS_SPECMGMT_REQUIRED = 22, /* 11h */ 865 IEEE80211_STATUS_PWRCAP_REQUIRED = 23, /* 11h */ 866 IEEE80211_STATUS_SUPCHAN_REQUIRED = 24, /* 11h */ 867 IEEE80211_STATUS_SHORTSLOT_REQUIRED = 25, /* 11g */ 868 IEEE80211_STATUS_DSSSOFDM_REQUIRED = 26, /* 11g */ 869 IEEE80211_STATUS_INVALID_IE = 40, /* 11i */ 870 IEEE80211_STATUS_GROUP_CIPHER_INVALID = 41, /* 11i */ 871 IEEE80211_STATUS_PAIRWISE_CIPHER_INVALID = 42, /* 11i */ 872 IEEE80211_STATUS_AKMP_INVALID = 43, /* 11i */ 873 IEEE80211_STATUS_UNSUPP_RSN_IE_VERSION = 44, /* 11i */ 874 IEEE80211_STATUS_INVALID_RSN_IE_CAP = 45, /* 11i */ 875 IEEE80211_STATUS_CIPHER_SUITE_REJECTED = 46, /* 11i */ 876}; 877 878#define IEEE80211_WEP_KEYLEN 5 /* 40bit */ 879#define IEEE80211_WEP_IVLEN 3 /* 24bit */ 880#define IEEE80211_WEP_KIDLEN 1 /* 1 octet */ 881#define IEEE80211_WEP_CRCLEN 4 /* CRC-32 */ 882#define IEEE80211_WEP_NKID 4 /* number of key ids */ 883 884/* 885 * 802.11i defines an extended IV for use with non-WEP ciphers. 886 * When the EXTIV bit is set in the key id byte an additional 887 * 4 bytes immediately follow the IV for TKIP. For CCMP the 888 * EXTIV bit is likewise set but the 8 bytes represent the 889 * CCMP header rather than IV+extended-IV. 890 */ 891#define IEEE80211_WEP_EXTIV 0x20 892#define IEEE80211_WEP_EXTIVLEN 4 /* extended IV length */ 893#define IEEE80211_WEP_MICLEN 8 /* trailing MIC */ 894 895#define IEEE80211_CRC_LEN 4 896 897/* 898 * Maximum acceptable MTU is: 899 * IEEE80211_MAX_LEN - WEP overhead - CRC - 900 * QoS overhead - RSN/WPA overhead 901 * Min is arbitrarily chosen > IEEE80211_MIN_LEN. The default 902 * mtu is Ethernet-compatible; it's set by ether_ifattach. 903 */ 904#define IEEE80211_MTU_MAX 2290 905#define IEEE80211_MTU_MIN 32 906 907#define IEEE80211_MAX_LEN (2300 + IEEE80211_CRC_LEN + \ 908 (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN)) 909#define IEEE80211_ACK_LEN \ 910 (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN) 911#define IEEE80211_MIN_LEN \ 912 (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN) 913 914/* 915 * The 802.11 spec says at most 2007 stations may be 916 * associated at once. For most AP's this is way more 917 * than is feasible so we use a default of 128. This 918 * number may be overridden by the driver and/or by 919 * user configuration. 920 */ 921#define IEEE80211_AID_MAX 2007 922#define IEEE80211_AID_DEF 128 923 924#define IEEE80211_AID(b) ((b) &~ 0xc000) 925 926/* 927 * RTS frame length parameters. The default is specified in 928 * the 802.11 spec as 512; we treat it as implementation-dependent 929 * so it's defined in ieee80211_var.h. The max may be wrong 930 * for jumbo frames. 931 */ 932#define IEEE80211_RTS_MIN 1 933#define IEEE80211_RTS_MAX 2346 934 935/* 936 * TX fragmentation parameters. As above for RTS, we treat 937 * default as implementation-dependent so define it elsewhere. 938 */ 939#define IEEE80211_FRAG_MIN 256 940#define IEEE80211_FRAG_MAX 2346 941 942/* 943 * Beacon interval (TU's). Min+max come from WiFi requirements. 944 * As above, we treat default as implementation-dependent so 945 * define it elsewhere. 946 */ 947#define IEEE80211_BINTVAL_MAX 1000 /* max beacon interval (TU's) */ 948#define IEEE80211_BINTVAL_MIN 25 /* min beacon interval (TU's) */ 949 950/* 951 * DTIM period (beacons). Min+max are not really defined 952 * by the protocol but we want them publicly visible so 953 * define them here. 954 */ 955#define IEEE80211_DTIM_MAX 15 /* max DTIM period */ 956#define IEEE80211_DTIM_MIN 1 /* min DTIM period */ 957 958/* 959 * Beacon miss threshold (beacons). As for DTIM, we define 960 * them here to be publicly visible. Note the max may be 961 * clamped depending on device capabilities. 962 */ 963#define IEEE80211_HWBMISS_MIN 1 964#define IEEE80211_HWBMISS_MAX 255 965 966/* 967 * 802.11 frame duration definitions. 968 */ 969 970struct ieee80211_duration { 971 uint16_t d_rts_dur; 972 uint16_t d_data_dur; 973 uint16_t d_plcp_len; 974 uint8_t d_residue; /* unused octets in time slot */ 975}; 976 977/* One Time Unit (TU) is 1Kus = 1024 microseconds. */ 978#define IEEE80211_DUR_TU 1024 979 980/* IEEE 802.11b durations for DSSS PHY in microseconds */ 981#define IEEE80211_DUR_DS_LONG_PREAMBLE 144 982#define IEEE80211_DUR_DS_SHORT_PREAMBLE 72 983 984#define IEEE80211_DUR_DS_SLOW_PLCPHDR 48 985#define IEEE80211_DUR_DS_FAST_PLCPHDR 24 986#define IEEE80211_DUR_DS_SLOW_ACK 112 987#define IEEE80211_DUR_DS_FAST_ACK 56 988#define IEEE80211_DUR_DS_SLOW_CTS 112 989#define IEEE80211_DUR_DS_FAST_CTS 56 990 991#define IEEE80211_DUR_DS_SLOT 20 992#define IEEE80211_DUR_DS_SIFS 10 993#define IEEE80211_DUR_DS_PIFS (IEEE80211_DUR_DS_SIFS + IEEE80211_DUR_DS_SLOT) 994#define IEEE80211_DUR_DS_DIFS (IEEE80211_DUR_DS_SIFS + \ 995 2 * IEEE80211_DUR_DS_SLOT) 996#define IEEE80211_DUR_DS_EIFS (IEEE80211_DUR_DS_SIFS + \ 997 IEEE80211_DUR_DS_SLOW_ACK + \ 998 IEEE80211_DUR_DS_LONG_PREAMBLE + \ 999 IEEE80211_DUR_DS_SLOW_PLCPHDR + \ 1000 IEEE80211_DUR_DIFS) 1001 1002/* 1003 * Atheros fast-frame encapsulation format. 1004 * FF max payload: 1005 * 802.2 + FFHDR + HPAD + 802.3 + 802.2 + 1500 + SPAD + 802.3 + 802.2 + 1500: 1006 * 8 + 4 + 4 + 14 + 8 + 1500 + 6 + 14 + 8 + 1500 1007 * = 3066 1008 */ 1009/* fast frame header is 32-bits */ 1010#define ATH_FF_PROTO 0x0000003f /* protocol */ 1011#define ATH_FF_PROTO_S 0 1012#define ATH_FF_FTYPE 0x000000c0 /* frame type */ 1013#define ATH_FF_FTYPE_S 6 1014#define ATH_FF_HLEN32 0x00000300 /* optional hdr length */ 1015#define ATH_FF_HLEN32_S 8 1016#define ATH_FF_SEQNUM 0x001ffc00 /* sequence number */ 1017#define ATH_FF_SEQNUM_S 10 1018#define ATH_FF_OFFSET 0xffe00000 /* offset to 2nd payload */ 1019#define ATH_FF_OFFSET_S 21 1020 1021#define ATH_FF_MAX_HDR_PAD 4 1022#define ATH_FF_MAX_SEP_PAD 6 1023#define ATH_FF_MAX_HDR 30 1024 1025#define ATH_FF_PROTO_L2TUNNEL 0 /* L2 tunnel protocol */ 1026#define ATH_FF_ETH_TYPE 0x88bd /* Ether type for encapsulated frames */ 1027#define ATH_FF_SNAP_ORGCODE_0 0x00 1028#define ATH_FF_SNAP_ORGCODE_1 0x03 1029#define ATH_FF_SNAP_ORGCODE_2 0x7f 1030 1031#endif /* _NET80211_IEEE80211_H_ */ 1032