ieee80211.h revision 178354
1/*- 2 * Copyright (c) 2001 Atsushi Onoe 3 * Copyright (c) 2002-2008 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 178354 2008-04-20 20:35:46Z 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_SEQ_BA_RANGE 2048 /* 2^11 */ 173#define IEEE80211_SEQ_BA_BEFORE(a, b) \ 174 (IEEE80211_SEQ_SUB(b, a+1) < IEEE80211_SEQ_BA_RANGE-1) 175 176#define IEEE80211_NWID_LEN 32 177 178#define IEEE80211_QOS_TXOP 0x00ff 179/* bit 8 is reserved */ 180#define IEEE80211_QOS_AMSDU 0x80 181#define IEEE80211_QOS_AMSDU_S 7 182#define IEEE80211_QOS_ACKPOLICY 0x60 183#define IEEE80211_QOS_ACKPOLICY_S 5 184#define IEEE80211_QOS_ACKPOLICY_NOACK 0x20 /* No ACK required */ 185#define IEEE80211_QOS_ACKPOLICY_BA 0x60 /* Block ACK */ 186#define IEEE80211_QOS_ESOP 0x10 187#define IEEE80211_QOS_ESOP_S 4 188#define IEEE80211_QOS_TID 0x0f 189 190/* does frame have QoS sequence control data */ 191#define IEEE80211_QOS_HAS_SEQ(wh) \ 192 (((wh)->i_fc[0] & \ 193 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == \ 194 (IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS)) 195 196/* 197 * WME/802.11e information element. 198 */ 199struct ieee80211_wme_info { 200 uint8_t wme_id; /* IEEE80211_ELEMID_VENDOR */ 201 uint8_t wme_len; /* length in bytes */ 202 uint8_t wme_oui[3]; /* 0x00, 0x50, 0xf2 */ 203 uint8_t wme_type; /* OUI type */ 204 uint8_t wme_subtype; /* OUI subtype */ 205 uint8_t wme_version; /* spec revision */ 206 uint8_t wme_info; /* QoS info */ 207} __packed; 208 209/* 210 * WME/802.11e Tspec Element 211 */ 212struct ieee80211_wme_tspec { 213 uint8_t ts_id; 214 uint8_t ts_len; 215 uint8_t ts_oui[3]; 216 uint8_t ts_oui_type; 217 uint8_t ts_oui_subtype; 218 uint8_t ts_version; 219 uint8_t ts_tsinfo[3]; 220 uint8_t ts_nom_msdu[2]; 221 uint8_t ts_max_msdu[2]; 222 uint8_t ts_min_svc[4]; 223 uint8_t ts_max_svc[4]; 224 uint8_t ts_inactv_intv[4]; 225 uint8_t ts_susp_intv[4]; 226 uint8_t ts_start_svc[4]; 227 uint8_t ts_min_rate[4]; 228 uint8_t ts_mean_rate[4]; 229 uint8_t ts_max_burst[4]; 230 uint8_t ts_min_phy[4]; 231 uint8_t ts_peak_rate[4]; 232 uint8_t ts_delay[4]; 233 uint8_t ts_surplus[2]; 234 uint8_t ts_medium_time[2]; 235} __packed; 236 237/* 238 * WME AC parameter field 239 */ 240struct ieee80211_wme_acparams { 241 uint8_t acp_aci_aifsn; 242 uint8_t acp_logcwminmax; 243 uint16_t acp_txop; 244} __packed; 245 246#define WME_NUM_AC 4 /* 4 AC categories */ 247#define WME_NUM_TID 16 /* 16 tids */ 248 249#define WME_PARAM_ACI 0x60 /* Mask for ACI field */ 250#define WME_PARAM_ACI_S 5 /* Shift for ACI field */ 251#define WME_PARAM_ACM 0x10 /* Mask for ACM bit */ 252#define WME_PARAM_ACM_S 4 /* Shift for ACM bit */ 253#define WME_PARAM_AIFSN 0x0f /* Mask for aifsn field */ 254#define WME_PARAM_AIFSN_S 0 /* Shift for aifsn field */ 255#define WME_PARAM_LOGCWMIN 0x0f /* Mask for CwMin field (in log) */ 256#define WME_PARAM_LOGCWMIN_S 0 /* Shift for CwMin field */ 257#define WME_PARAM_LOGCWMAX 0xf0 /* Mask for CwMax field (in log) */ 258#define WME_PARAM_LOGCWMAX_S 4 /* Shift for CwMax field */ 259 260#define WME_AC_TO_TID(_ac) ( \ 261 ((_ac) == WME_AC_VO) ? 6 : \ 262 ((_ac) == WME_AC_VI) ? 5 : \ 263 ((_ac) == WME_AC_BK) ? 1 : \ 264 0) 265 266#define TID_TO_WME_AC(_tid) ( \ 267 ((_tid) == 0 || (_tid) == 3) ? WME_AC_BE : \ 268 ((_tid) < 3) ? WME_AC_BK : \ 269 ((_tid) < 6) ? WME_AC_VI : \ 270 WME_AC_VO) 271 272/* 273 * WME Parameter Element 274 */ 275struct ieee80211_wme_param { 276 uint8_t param_id; 277 uint8_t param_len; 278 uint8_t param_oui[3]; 279 uint8_t param_oui_type; 280 uint8_t param_oui_subtype; 281 uint8_t param_version; 282 uint8_t param_qosInfo; 283#define WME_QOSINFO_COUNT 0x0f /* Mask for param count field */ 284 uint8_t param_reserved; 285 struct ieee80211_wme_acparams params_acParams[WME_NUM_AC]; 286} __packed; 287 288/* 289 * Management Notification Frame 290 */ 291struct ieee80211_mnf { 292 uint8_t mnf_category; 293 uint8_t mnf_action; 294 uint8_t mnf_dialog; 295 uint8_t mnf_status; 296} __packed; 297#define MNF_SETUP_REQ 0 298#define MNF_SETUP_RESP 1 299#define MNF_TEARDOWN 2 300 301/* 302 * 802.11n Management Action Frames 303 */ 304/* generic frame format */ 305struct ieee80211_action { 306 uint8_t ia_category; 307 uint8_t ia_action; 308} __packed; 309 310#define IEEE80211_ACTION_CAT_QOS 0 /* QoS */ 311#define IEEE80211_ACTION_CAT_BA 3 /* BA */ 312#define IEEE80211_ACTION_CAT_HT 7 /* HT */ 313 314#define IEEE80211_ACTION_HT_TXCHWIDTH 0 /* recommended xmit chan width*/ 315#define IEEE80211_ACTION_HT_MIMOPWRSAVE 1 /* MIMO power save */ 316 317/* HT - recommended transmission channel width */ 318struct ieee80211_action_ht_txchwidth { 319 struct ieee80211_action at_header; 320 uint8_t at_chwidth; 321} __packed; 322 323#define IEEE80211_A_HT_TXCHWIDTH_20 0 324#define IEEE80211_A_HT_TXCHWIDTH_2040 1 325 326/* HT - MIMO Power Save (NB: D2.04) */ 327struct ieee80211_action_ht_mimopowersave { 328 struct ieee80211_action am_header; 329 uint8_t am_control; 330} __packed; 331 332#define IEEE80211_A_HT_MIMOPWRSAVE_ENA 0x01 /* PS enabled */ 333#define IEEE80211_A_HT_MIMOPWRSAVE_MODE 0x02 334#define IEEE80211_A_HT_MIMOPWRSAVE_MODE_S 1 335#define IEEE80211_A_HT_MIMOPWRSAVE_DYNAMIC 0x02 /* Dynamic Mode */ 336#define IEEE80211_A_HT_MIMOPWRSAVE_STATIC 0x00 /* no SM packets */ 337/* bits 2-7 reserved */ 338 339/* Block Ack actions */ 340#define IEEE80211_ACTION_BA_ADDBA_REQUEST 0 /* ADDBA request */ 341#define IEEE80211_ACTION_BA_ADDBA_RESPONSE 1 /* ADDBA response */ 342#define IEEE80211_ACTION_BA_DELBA 2 /* DELBA */ 343 344/* Block Ack Parameter Set */ 345#define IEEE80211_BAPS_BUFSIZ 0xffc0 /* buffer size */ 346#define IEEE80211_BAPS_BUFSIZ_S 6 347#define IEEE80211_BAPS_TID 0x003c /* TID */ 348#define IEEE80211_BAPS_TID_S 2 349#define IEEE80211_BAPS_POLICY 0x0002 /* block ack policy */ 350#define IEEE80211_BAPS_POLICY_S 1 351 352#define IEEE80211_BAPS_POLICY_DELAYED (0<<IEEE80211_BAPS_POLICY_S) 353#define IEEE80211_BAPS_POLICY_IMMEDIATE (1<<IEEE80211_BAPS_POLICY_S) 354 355/* Block Ack Sequence Control */ 356#define IEEE80211_BASEQ_START 0xfff0 /* starting seqnum */ 357#define IEEE80211_BASEQ_START_S 4 358#define IEEE80211_BASEQ_FRAG 0x000f /* fragment number */ 359#define IEEE80211_BASEQ_FRAG_S 0 360 361/* Delayed Block Ack Parameter Set */ 362#define IEEE80211_DELBAPS_TID 0xf000 /* TID */ 363#define IEEE80211_DELBAPS_TID_S 12 364#define IEEE80211_DELBAPS_INIT 0x0800 /* initiator */ 365#define IEEE80211_DELBAPS_INIT_S 11 366 367/* BA - ADDBA request */ 368struct ieee80211_action_ba_addbarequest { 369 struct ieee80211_action rq_header; 370 uint8_t rq_dialogtoken; 371 uint16_t rq_baparamset; 372 uint16_t rq_batimeout; /* in TUs */ 373 uint16_t rq_baseqctl; 374} __packed; 375 376/* BA - ADDBA response */ 377struct ieee80211_action_ba_addbaresponse { 378 struct ieee80211_action rs_header; 379 uint8_t rs_dialogtoken; 380 uint16_t rs_statuscode; 381 uint16_t rs_baparamset; 382 uint16_t rs_batimeout; /* in TUs */ 383} __packed; 384 385/* BA - DELBA */ 386struct ieee80211_action_ba_delba { 387 struct ieee80211_action dl_header; 388 uint16_t dl_baparamset; 389 uint16_t dl_reasoncode; 390} __packed; 391 392/* BAR Control */ 393#define IEEE80211_BAR_TID 0xf000 /* TID */ 394#define IEEE80211_BAR_TID_S 12 395#define IEEE80211_BAR_COMP 0x0004 /* compressed */ 396#define IEEE80211_BAR_MTID 0x0002 397#define IEEE80211_BAR_NOACK 0x0001 /* no-ack policy */ 398 399struct ieee80211_ba_request { 400 uint16_t rq_barctl; 401 uint16_t rq_barseqctl; 402} __packed; 403 404/* 405 * Control frames. 406 */ 407struct ieee80211_frame_min { 408 uint8_t i_fc[2]; 409 uint8_t i_dur[2]; 410 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 411 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 412 /* FCS */ 413} __packed; 414 415struct ieee80211_frame_rts { 416 uint8_t i_fc[2]; 417 uint8_t i_dur[2]; 418 uint8_t i_ra[IEEE80211_ADDR_LEN]; 419 uint8_t i_ta[IEEE80211_ADDR_LEN]; 420 /* FCS */ 421} __packed; 422 423struct ieee80211_frame_cts { 424 uint8_t i_fc[2]; 425 uint8_t i_dur[2]; 426 uint8_t i_ra[IEEE80211_ADDR_LEN]; 427 /* FCS */ 428} __packed; 429 430struct ieee80211_frame_ack { 431 uint8_t i_fc[2]; 432 uint8_t i_dur[2]; 433 uint8_t i_ra[IEEE80211_ADDR_LEN]; 434 /* FCS */ 435} __packed; 436 437struct ieee80211_frame_pspoll { 438 uint8_t i_fc[2]; 439 uint8_t i_aid[2]; 440 uint8_t i_bssid[IEEE80211_ADDR_LEN]; 441 uint8_t i_ta[IEEE80211_ADDR_LEN]; 442 /* FCS */ 443} __packed; 444 445struct ieee80211_frame_cfend { /* NB: also CF-End+CF-Ack */ 446 uint8_t i_fc[2]; 447 uint8_t i_dur[2]; /* should be zero */ 448 uint8_t i_ra[IEEE80211_ADDR_LEN]; 449 uint8_t i_bssid[IEEE80211_ADDR_LEN]; 450 /* FCS */ 451} __packed; 452 453struct ieee80211_frame_bar { 454 uint8_t i_fc[2]; 455 uint8_t i_dur[2]; 456 uint8_t i_ra[IEEE80211_ADDR_LEN]; 457 uint8_t i_ta[IEEE80211_ADDR_LEN]; 458 uint16_t i_ctl; 459 uint16_t i_seq; 460 /* FCS */ 461} __packed; 462 463/* 464 * BEACON management packets 465 * 466 * octet timestamp[8] 467 * octet beacon interval[2] 468 * octet capability information[2] 469 * information element 470 * octet elemid 471 * octet length 472 * octet information[length] 473 */ 474 475#define IEEE80211_BEACON_INTERVAL(beacon) \ 476 ((beacon)[8] | ((beacon)[9] << 8)) 477#define IEEE80211_BEACON_CAPABILITY(beacon) \ 478 ((beacon)[10] | ((beacon)[11] << 8)) 479 480#define IEEE80211_CAPINFO_ESS 0x0001 481#define IEEE80211_CAPINFO_IBSS 0x0002 482#define IEEE80211_CAPINFO_CF_POLLABLE 0x0004 483#define IEEE80211_CAPINFO_CF_POLLREQ 0x0008 484#define IEEE80211_CAPINFO_PRIVACY 0x0010 485#define IEEE80211_CAPINFO_SHORT_PREAMBLE 0x0020 486#define IEEE80211_CAPINFO_PBCC 0x0040 487#define IEEE80211_CAPINFO_CHNL_AGILITY 0x0080 488#define IEEE80211_CAPINFO_SPECTRUM_MGMT 0x0100 489/* bit 9 is reserved */ 490#define IEEE80211_CAPINFO_SHORT_SLOTTIME 0x0400 491#define IEEE80211_CAPINFO_RSN 0x0800 492/* bit 12 is reserved */ 493#define IEEE80211_CAPINFO_DSSSOFDM 0x2000 494/* bits 14-15 are reserved */ 495 496/* 497 * 802.11i/WPA information element (maximally sized). 498 */ 499struct ieee80211_ie_wpa { 500 uint8_t wpa_id; /* IEEE80211_ELEMID_VENDOR */ 501 uint8_t wpa_len; /* length in bytes */ 502 uint8_t wpa_oui[3]; /* 0x00, 0x50, 0xf2 */ 503 uint8_t wpa_type; /* OUI type */ 504 uint16_t wpa_version; /* spec revision */ 505 uint32_t wpa_mcipher[1]; /* multicast/group key cipher */ 506 uint16_t wpa_uciphercnt; /* # pairwise key ciphers */ 507 uint32_t wpa_uciphers[8];/* ciphers */ 508 uint16_t wpa_authselcnt; /* authentication selector cnt*/ 509 uint32_t wpa_authsels[8];/* selectors */ 510 uint16_t wpa_caps; /* 802.11i capabilities */ 511 uint16_t wpa_pmkidcnt; /* 802.11i pmkid count */ 512 uint16_t wpa_pmkids[8]; /* 802.11i pmkids */ 513} __packed; 514 515/* 516 * 802.11n HT Capability IE 517 * NB: these reflect D1.10 518 */ 519struct ieee80211_ie_htcap { 520 uint8_t hc_id; /* element ID */ 521 uint8_t hc_len; /* length in bytes */ 522 uint16_t hc_cap; /* HT caps (see below) */ 523 uint8_t hc_param; /* HT params (see below) */ 524 uint8_t hc_mcsset[16]; /* supported MCS set */ 525 uint16_t hc_extcap; /* extended HT capabilities */ 526 uint32_t hc_txbf; /* txbf capabilities */ 527 uint8_t hc_antenna; /* antenna capabilities */ 528} __packed; 529 530/* HT capability flags (ht_cap) */ 531#define IEEE80211_HTCAP_LDPC 0x0001 /* LDPC supported */ 532#define IEEE80211_HTCAP_CHWIDTH40 0x0002 /* 20/40 supported */ 533#define IEEE80211_HTCAP_SMPS 0x000c /* SM Power Save mode */ 534#define IEEE80211_HTCAP_SMPS_OFF 0x0000 /* none (static mode) */ 535#define IEEE80211_HTCAP_SMPS_DYNAMIC 0x0004 /* send RTS first */ 536/* NB: SMPS value 2 is reserved */ 537#define IEEE80211_HTCAP_SMPS_ENA 0x000c /* enabled */ 538#define IEEE80211_HTCAP_GREENFIELD 0x0010 /* Greenfield supported */ 539#define IEEE80211_HTCAP_SHORTGI20 0x0020 /* Short GI in 20MHz */ 540#define IEEE80211_HTCAP_SHORTGI40 0x0040 /* Short GI in 40MHz */ 541#define IEEE80211_HTCAP_TXSTBC 0x0080 /* STBC tx ok */ 542#define IEEE80211_HTCAP_RXSTBC 0x0300 /* STBC rx support */ 543#define IEEE80211_HTCAP_RXSTBC_S 8 544#define IEEE80211_HTCAP_RXSTBC_1STREAM 0x0100 /* 1 spatial stream */ 545#define IEEE80211_HTCAP_RXSTBC_2STREAM 0x0200 /* 1-2 spatial streams*/ 546#define IEEE80211_HTCAP_RXSTBC_3STREAM 0x0300 /* 1-3 spatial streams*/ 547#define IEEE80211_HTCAP_DELBA 0x0400 /* HT DELBA supported */ 548#define IEEE80211_HTCAP_MAXAMSDU 0x0800 /* max A-MSDU length */ 549#define IEEE80211_HTCAP_MAXAMSDU_7935 0x0800 /* 7935 octets */ 550#define IEEE80211_HTCAP_MAXAMSDU_3839 0x0000 /* 3839 octets */ 551#define IEEE80211_HTCAP_DSSSCCK40 0x1000 /* DSSS/CCK in 40MHz */ 552#define IEEE80211_HTCAP_PSMP 0x2000 /* PSMP supported */ 553#define IEEE80211_HTCAP_40INTOLERANT 0x4000 /* 40MHz intolerant */ 554#define IEEE80211_HTCAP_LSIGTXOPPROT 0x8000 /* L-SIG TXOP prot */ 555 556/* HT parameters (hc_param) */ 557#define IEEE80211_HTCAP_MAXRXAMPDU 0x03 /* max rx A-MPDU factor */ 558#define IEEE80211_HTCAP_MAXRXAMPDU_S 0 559#define IEEE80211_HTCAP_MAXRXAMPDU_8K 0 560#define IEEE80211_HTCAP_MAXRXAMPDU_16K 1 561#define IEEE80211_HTCAP_MAXRXAMPDU_32K 2 562#define IEEE80211_HTCAP_MAXRXAMPDU_64K 3 563#define IEEE80211_HTCAP_MPDUDENSITY 0x1c /* min MPDU start spacing */ 564#define IEEE80211_HTCAP_MPDUDENSITY_S 2 565#define IEEE80211_HTCAP_MPDUDENSITY_NA 0 /* no time restriction */ 566#define IEEE80211_HTCAP_MPDUDENSITY_025 1 /* 1/4 us */ 567#define IEEE80211_HTCAP_MPDUDENSITY_05 2 /* 1/2 us */ 568#define IEEE80211_HTCAP_MPDUDENSITY_1 3 /* 1 us */ 569#define IEEE80211_HTCAP_MPDUDENSITY_2 4 /* 2 us */ 570#define IEEE80211_HTCAP_MPDUDENSITY_4 5 /* 4 us */ 571#define IEEE80211_HTCAP_MPDUDENSITY_8 6 /* 8 us */ 572#define IEEE80211_HTCAP_MPDUDENSITY_16 7 /* 16 us */ 573 574/* HT extended capabilities (hc_extcap) */ 575#define IEEE80211_HTCAP_PCO 0x0001 /* PCO capable */ 576#define IEEE80211_HTCAP_PCOTRANS 0x0006 /* PCO transition time */ 577#define IEEE80211_HTCAP_PCOTRANS_S 1 578#define IEEE80211_HTCAP_PCOTRANS_04 0x0002 /* 400 us */ 579#define IEEE80211_HTCAP_PCOTRANS_15 0x0004 /* 1.5 ms */ 580#define IEEE80211_HTCAP_PCOTRANS_5 0x0006 /* 5 ms */ 581/* bits 3-7 reserved */ 582#define IEEE80211_HTCAP_MCSFBACK 0x0300 /* MCS feedback */ 583#define IEEE80211_HTCAP_MCSFBACK_S 8 584#define IEEE80211_HTCAP_MCSFBACK_NONE 0x0000 /* nothing provided */ 585#define IEEE80211_HTCAP_MCSFBACK_UNSOL 0x0200 /* unsolicited feedback */ 586#define IEEE80211_HTCAP_MCSFBACK_MRQ 0x0300 /* " "+respond to MRQ */ 587#define IEEE80211_HTCAP_HTC 0x0400 /* +HTC support */ 588#define IEEE80211_HTCAP_RDR 0x0800 /* reverse direction responder*/ 589/* bits 12-15 reserved */ 590 591/* 592 * 802.11n HT Information IE 593 */ 594struct ieee80211_ie_htinfo { 595 uint8_t hi_id; /* element ID */ 596 uint8_t hi_len; /* length in bytes */ 597 uint8_t hi_ctrlchannel; /* primary channel */ 598 uint8_t hi_byte1; /* ht ie byte 1 */ 599 uint8_t hi_byte2; /* ht ie byte 2 */ 600 uint8_t hi_byte3; /* ht ie byte 3 */ 601 uint16_t hi_byte45; /* ht ie bytes 4+5 */ 602 uint8_t hi_basicmcsset[16]; /* basic MCS set */ 603} __packed; 604 605/* byte1 */ 606#define IEEE80211_HTINFO_2NDCHAN 0x03 /* secondary/ext chan offset */ 607#define IEEE80211_HTINFO_2NDCHAN_S 0 608#define IEEE80211_HTINFO_2NDCHAN_NONE 0x00 /* no secondary/ext channel */ 609#define IEEE80211_HTINFO_2NDCHAN_ABOVE 0x01 /* above private channel */ 610/* NB: 2 is reserved */ 611#define IEEE80211_HTINFO_2NDCHAN_BELOW 0x03 /* below primary channel */ 612#define IEEE80211_HTINFO_TXWIDTH 0x04 /* tx channel width */ 613#define IEEE80211_HTINFO_TXWIDTH_20 0x00 /* 20MHz width */ 614#define IEEE80211_HTINFO_TXWIDTH_2040 0x04 /* any supported width */ 615#define IEEE80211_HTINFO_RIFSMODE 0x08 /* Reduced IFS (RIFS) use */ 616#define IEEE80211_HTINFO_RIFSMODE_PROH 0x00 /* RIFS use prohibited */ 617#define IEEE80211_HTINFO_RIFSMODE_PERM 0x08 /* RIFS use permitted */ 618#define IEEE80211_HTINFO_PMSPONLY 0x10 /* PSMP required to associate */ 619#define IEEE80211_HTINFO_SIGRAN 0xe0 /* shortest Service Interval */ 620#define IEEE80211_HTINFO_SIGRAN_S 5 621#define IEEE80211_HTINFO_SIGRAN_5 0x00 /* 5 ms */ 622/* XXX add rest */ 623 624/* bytes 2+3 */ 625#define IEEE80211_HTINFO_OPMODE 0x03 /* operating mode */ 626#define IEEE80211_HTINFO_OPMODE_S 0 627#define IEEE80211_HTINFO_OPMODE_PURE 0x00 /* no protection */ 628#define IEEE80211_HTINFO_OPMODE_PROTOPT 0x01 /* protection optional */ 629#define IEEE80211_HTINFO_OPMODE_HT20PR 0x02 /* protection for HT20 sta's */ 630#define IEEE80211_HTINFO_OPMODE_MIXED 0x03 /* protection for legacy sta's*/ 631#define IEEE80211_HTINFO_NONGF_PRESENT 0x04 /* non-GF sta's present */ 632#define IEEE80211_HTINFO_TXBL 0x08 /* transmit burst limit */ 633#define IEEE80211_HTINFO_NONHT_PRESENT 0x10 /* non-HT sta's present */ 634/* bits 5-15 reserved */ 635 636/* bytes 4+5 */ 637#define IEEE80211_HTINFO_2NDARYBEACON 0x01 638#define IEEE80211_HTINFO_LSIGTXOPPROT 0x02 639#define IEEE80211_HTINFO_PCO_ACTIVE 0x04 640#define IEEE80211_HTINFO_40MHZPHASE 0x08 641 642/* byte5 */ 643#define IEEE80211_HTINFO_BASIC_STBCMCS 0x7f 644#define IEEE80211_HTINFO_BASIC_STBCMCS_S 0 645#define IEEE80211_HTINFO_DUALPROTECTED 0x80 646 647/* 648 * Management information element payloads. 649 */ 650 651enum { 652 IEEE80211_ELEMID_SSID = 0, 653 IEEE80211_ELEMID_RATES = 1, 654 IEEE80211_ELEMID_FHPARMS = 2, 655 IEEE80211_ELEMID_DSPARMS = 3, 656 IEEE80211_ELEMID_CFPARMS = 4, 657 IEEE80211_ELEMID_TIM = 5, 658 IEEE80211_ELEMID_IBSSPARMS = 6, 659 IEEE80211_ELEMID_COUNTRY = 7, 660 IEEE80211_ELEMID_CHALLENGE = 16, 661 /* 17-31 reserved for challenge text extension */ 662 IEEE80211_ELEMID_PWRCNSTR = 32, 663 IEEE80211_ELEMID_PWRCAP = 33, 664 IEEE80211_ELEMID_TPCREQ = 34, 665 IEEE80211_ELEMID_TPCREP = 35, 666 IEEE80211_ELEMID_SUPPCHAN = 36, 667 IEEE80211_ELEMID_CHANSWITCHANN = 37, 668 IEEE80211_ELEMID_MEASREQ = 38, 669 IEEE80211_ELEMID_MEASREP = 39, 670 IEEE80211_ELEMID_QUIET = 40, 671 IEEE80211_ELEMID_IBSSDFS = 41, 672 IEEE80211_ELEMID_ERP = 42, 673 IEEE80211_ELEMID_HTCAP = 45, 674 IEEE80211_ELEMID_RSN = 48, 675 IEEE80211_ELEMID_XRATES = 50, 676 IEEE80211_ELEMID_HTINFO = 61, 677 IEEE80211_ELEMID_TPC = 150, 678 IEEE80211_ELEMID_CCKM = 156, 679 IEEE80211_ELEMID_VENDOR = 221, /* vendor private */ 680}; 681 682struct ieee80211_tim_ie { 683 uint8_t tim_ie; /* IEEE80211_ELEMID_TIM */ 684 uint8_t tim_len; 685 uint8_t tim_count; /* DTIM count */ 686 uint8_t tim_period; /* DTIM period */ 687 uint8_t tim_bitctl; /* bitmap control */ 688 uint8_t tim_bitmap[1]; /* variable-length bitmap */ 689} __packed; 690 691struct ieee80211_country_ie { 692 uint8_t ie; /* IEEE80211_ELEMID_COUNTRY */ 693 uint8_t len; 694 uint8_t cc[3]; /* ISO CC+(I)ndoor/(O)utdoor */ 695 struct { 696 uint8_t schan; /* starting channel */ 697 uint8_t nchan; /* number channels */ 698 uint8_t maxtxpwr; /* tx power cap */ 699 } __packed band[1]; /* sub bands (NB: var size) */ 700} __packed; 701 702#define IEEE80211_COUNTRY_MAX_BANDS 84 /* max possible bands */ 703#define IEEE80211_COUNTRY_MAX_SIZE \ 704 (sizeof(struct ieee80211_country_ie) + 3*(IEEE80211_COUNTRY_MAX_BANDS-1)) 705 706/* 707 * 802.11h Channel Switch Announcement (CSA). 708 */ 709struct ieee80211_csa_ie { 710 uint8_t csa_ie; /* IEEE80211_ELEMID_CHANSWITCHANN */ 711 uint8_t csa_len; 712 uint8_t csa_mode; /* Channel Switch Mode */ 713 uint8_t csa_newchan; /* New Channel Number */ 714 uint8_t csa_count; /* Channel Switch Count */ 715} __packed; 716 717/* 718 * Atheros advanced capability information element. 719 */ 720struct ieee80211_ath_ie { 721 uint8_t ath_id; /* IEEE80211_ELEMID_VENDOR */ 722 uint8_t ath_len; /* length in bytes */ 723 uint8_t ath_oui[3]; /* 0x00, 0x03, 0x7f */ 724 uint8_t ath_oui_type; /* OUI type */ 725 uint8_t ath_oui_subtype; /* OUI subtype */ 726 uint8_t ath_version; /* spec revision */ 727 uint8_t ath_capability; /* capability info */ 728#define ATHEROS_CAP_TURBO_PRIME 0x01 /* dynamic turbo--aka Turbo' */ 729#define ATHEROS_CAP_COMPRESSION 0x02 /* data compression */ 730#define ATHEROS_CAP_FAST_FRAME 0x04 /* fast (jumbo) frames */ 731#define ATHEROS_CAP_XR 0x08 /* Xtended Range support */ 732#define ATHEROS_CAP_AR 0x10 /* Advanded Radar support */ 733#define ATHEROS_CAP_BURST 0x20 /* Bursting - not negotiated */ 734#define ATHEROS_CAP_WME 0x40 /* CWMin tuning */ 735#define ATHEROS_CAP_BOOST 0x80 /* use turbo/!turbo mode */ 736 uint8_t ath_defkeyix[2]; 737} __packed; 738 739/* rate set entries are in .5 Mb/s units, and potentially marked as basic */ 740#define IEEE80211_RATE_BASIC 0x80 741#define IEEE80211_RATE_VAL 0x7f 742 743/* EPR information element flags */ 744#define IEEE80211_ERP_NON_ERP_PRESENT 0x01 745#define IEEE80211_ERP_USE_PROTECTION 0x02 746#define IEEE80211_ERP_LONG_PREAMBLE 0x04 747 748#define ATH_OUI 0x7f0300 /* Atheros OUI */ 749#define ATH_OUI_TYPE 0x01 750#define ATH_OUI_SUBTYPE 0x01 751#define ATH_OUI_VERSION 0x00 752 753#define BCM_OUI 0x4c9000 /* Broadcom OUI */ 754#define BCM_OUI_HTCAP 51 /* pre-draft HTCAP ie */ 755#define BCM_OUI_HTINFO 52 /* pre-draft HTINFO ie */ 756 757#define WPA_OUI 0xf25000 758#define WPA_OUI_TYPE 0x01 759#define WPA_VERSION 1 /* current supported version */ 760 761#define WPA_CSE_NULL 0x00 762#define WPA_CSE_WEP40 0x01 763#define WPA_CSE_TKIP 0x02 764#define WPA_CSE_CCMP 0x04 765#define WPA_CSE_WEP104 0x05 766 767#define WPA_ASE_NONE 0x00 768#define WPA_ASE_8021X_UNSPEC 0x01 769#define WPA_ASE_8021X_PSK 0x02 770 771#define RSN_OUI 0xac0f00 772#define RSN_VERSION 1 /* current supported version */ 773 774#define RSN_CSE_NULL 0x00 775#define RSN_CSE_WEP40 0x01 776#define RSN_CSE_TKIP 0x02 777#define RSN_CSE_WRAP 0x03 778#define RSN_CSE_CCMP 0x04 779#define RSN_CSE_WEP104 0x05 780 781#define RSN_ASE_NONE 0x00 782#define RSN_ASE_8021X_UNSPEC 0x01 783#define RSN_ASE_8021X_PSK 0x02 784 785#define RSN_CAP_PREAUTH 0x01 786 787#define WME_OUI 0xf25000 788#define WME_OUI_TYPE 0x02 789#define WME_INFO_OUI_SUBTYPE 0x00 790#define WME_PARAM_OUI_SUBTYPE 0x01 791#define WME_VERSION 1 792 793/* WME stream classes */ 794#define WME_AC_BE 0 /* best effort */ 795#define WME_AC_BK 1 /* background */ 796#define WME_AC_VI 2 /* video */ 797#define WME_AC_VO 3 /* voice */ 798 799/* 800 * AUTH management packets 801 * 802 * octet algo[2] 803 * octet seq[2] 804 * octet status[2] 805 * octet chal.id 806 * octet chal.length 807 * octet chal.text[253] NB: 1-253 bytes 808 */ 809 810/* challenge length for shared key auth */ 811#define IEEE80211_CHALLENGE_LEN 128 812 813#define IEEE80211_AUTH_ALG_OPEN 0x0000 814#define IEEE80211_AUTH_ALG_SHARED 0x0001 815#define IEEE80211_AUTH_ALG_LEAP 0x0080 816 817enum { 818 IEEE80211_AUTH_OPEN_REQUEST = 1, 819 IEEE80211_AUTH_OPEN_RESPONSE = 2, 820}; 821 822enum { 823 IEEE80211_AUTH_SHARED_REQUEST = 1, 824 IEEE80211_AUTH_SHARED_CHALLENGE = 2, 825 IEEE80211_AUTH_SHARED_RESPONSE = 3, 826 IEEE80211_AUTH_SHARED_PASS = 4, 827}; 828 829/* 830 * Reason and status codes. 831 * 832 * Reason codes are used in management frames to indicate why an 833 * action took place (e.g. on disassociation). Status codes are 834 * used in management frames to indicate the result of an operation. 835 * 836 * Unlisted codes are reserved 837 */ 838 839enum { 840 IEEE80211_REASON_UNSPECIFIED = 1, 841 IEEE80211_REASON_AUTH_EXPIRE = 2, 842 IEEE80211_REASON_AUTH_LEAVE = 3, 843 IEEE80211_REASON_ASSOC_EXPIRE = 4, 844 IEEE80211_REASON_ASSOC_TOOMANY = 5, 845 IEEE80211_REASON_NOT_AUTHED = 6, 846 IEEE80211_REASON_NOT_ASSOCED = 7, 847 IEEE80211_REASON_ASSOC_LEAVE = 8, 848 IEEE80211_REASON_ASSOC_NOT_AUTHED = 9, 849 IEEE80211_REASON_DISASSOC_PWRCAP_BAD = 10, /* 11h */ 850 IEEE80211_REASON_DISASSOC_SUPCHAN_BAD = 11, /* 11h */ 851 IEEE80211_REASON_IE_INVALID = 13, /* 11i */ 852 IEEE80211_REASON_MIC_FAILURE = 14, /* 11i */ 853 IEEE80211_REASON_4WAY_HANDSHAKE_TIMEOUT = 15, /* 11i */ 854 IEEE80211_REASON_GROUP_KEY_UPDATE_TIMEOUT = 16, /* 11i */ 855 IEEE80211_REASON_IE_IN_4WAY_DIFFERS = 17, /* 11i */ 856 IEEE80211_REASON_GROUP_CIPHER_INVALID = 18, /* 11i */ 857 IEEE80211_REASON_PAIRWISE_CIPHER_INVALID= 19, /* 11i */ 858 IEEE80211_REASON_AKMP_INVALID = 20, /* 11i */ 859 IEEE80211_REASON_UNSUPP_RSN_IE_VERSION = 21, /* 11i */ 860 IEEE80211_REASON_INVALID_RSN_IE_CAP = 22, /* 11i */ 861 IEEE80211_REASON_802_1X_AUTH_FAILED = 23, /* 11i */ 862 IEEE80211_REASON_CIPHER_SUITE_REJECTED = 24, /* 11i */ 863 864 IEEE80211_STATUS_SUCCESS = 0, 865 IEEE80211_STATUS_UNSPECIFIED = 1, 866 IEEE80211_STATUS_CAPINFO = 10, 867 IEEE80211_STATUS_NOT_ASSOCED = 11, 868 IEEE80211_STATUS_OTHER = 12, 869 IEEE80211_STATUS_ALG = 13, 870 IEEE80211_STATUS_SEQUENCE = 14, 871 IEEE80211_STATUS_CHALLENGE = 15, 872 IEEE80211_STATUS_TIMEOUT = 16, 873 IEEE80211_STATUS_TOOMANY = 17, 874 IEEE80211_STATUS_BASIC_RATE = 18, 875 IEEE80211_STATUS_SP_REQUIRED = 19, /* 11b */ 876 IEEE80211_STATUS_PBCC_REQUIRED = 20, /* 11b */ 877 IEEE80211_STATUS_CA_REQUIRED = 21, /* 11b */ 878 IEEE80211_STATUS_SPECMGMT_REQUIRED = 22, /* 11h */ 879 IEEE80211_STATUS_PWRCAP_REQUIRED = 23, /* 11h */ 880 IEEE80211_STATUS_SUPCHAN_REQUIRED = 24, /* 11h */ 881 IEEE80211_STATUS_SHORTSLOT_REQUIRED = 25, /* 11g */ 882 IEEE80211_STATUS_DSSSOFDM_REQUIRED = 26, /* 11g */ 883 IEEE80211_STATUS_INVALID_IE = 40, /* 11i */ 884 IEEE80211_STATUS_GROUP_CIPHER_INVALID = 41, /* 11i */ 885 IEEE80211_STATUS_PAIRWISE_CIPHER_INVALID = 42, /* 11i */ 886 IEEE80211_STATUS_AKMP_INVALID = 43, /* 11i */ 887 IEEE80211_STATUS_UNSUPP_RSN_IE_VERSION = 44, /* 11i */ 888 IEEE80211_STATUS_INVALID_RSN_IE_CAP = 45, /* 11i */ 889 IEEE80211_STATUS_CIPHER_SUITE_REJECTED = 46, /* 11i */ 890}; 891 892#define IEEE80211_WEP_KEYLEN 5 /* 40bit */ 893#define IEEE80211_WEP_IVLEN 3 /* 24bit */ 894#define IEEE80211_WEP_KIDLEN 1 /* 1 octet */ 895#define IEEE80211_WEP_CRCLEN 4 /* CRC-32 */ 896#define IEEE80211_WEP_TOTLEN (IEEE80211_WEP_IVLEN + \ 897 IEEE80211_WEP_KIDLEN + \ 898 IEEE80211_WEP_CRCLEN) 899#define IEEE80211_WEP_NKID 4 /* number of key ids */ 900 901/* 902 * 802.11i defines an extended IV for use with non-WEP ciphers. 903 * When the EXTIV bit is set in the key id byte an additional 904 * 4 bytes immediately follow the IV for TKIP. For CCMP the 905 * EXTIV bit is likewise set but the 8 bytes represent the 906 * CCMP header rather than IV+extended-IV. 907 */ 908#define IEEE80211_WEP_EXTIV 0x20 909#define IEEE80211_WEP_EXTIVLEN 4 /* extended IV length */ 910#define IEEE80211_WEP_MICLEN 8 /* trailing MIC */ 911 912#define IEEE80211_CRC_LEN 4 913 914/* 915 * Maximum acceptable MTU is: 916 * IEEE80211_MAX_LEN - WEP overhead - CRC - 917 * QoS overhead - RSN/WPA overhead 918 * Min is arbitrarily chosen > IEEE80211_MIN_LEN. The default 919 * mtu is Ethernet-compatible; it's set by ether_ifattach. 920 */ 921#define IEEE80211_MTU_MAX 2290 922#define IEEE80211_MTU_MIN 32 923 924#define IEEE80211_MAX_LEN (2300 + IEEE80211_CRC_LEN + \ 925 (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN)) 926#define IEEE80211_ACK_LEN \ 927 (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN) 928#define IEEE80211_MIN_LEN \ 929 (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN) 930 931/* 932 * The 802.11 spec says at most 2007 stations may be 933 * associated at once. For most AP's this is way more 934 * than is feasible so we use a default of IEEE80211_AID_DEF. 935 * This number may be overridden by the driver and/or by 936 * user configuration but may not be less than IEEE80211_AID_MIN 937 * (see _ieee80211.h for implementation-specific settings). 938 */ 939#define IEEE80211_AID_MAX 2007 940 941#define IEEE80211_AID(b) ((b) &~ 0xc000) 942 943/* 944 * RTS frame length parameters. The default is specified in 945 * the 802.11 spec as 512; we treat it as implementation-dependent 946 * so it's defined in ieee80211_var.h. The max may be wrong 947 * for jumbo frames. 948 */ 949#define IEEE80211_RTS_MIN 1 950#define IEEE80211_RTS_MAX 2346 951 952/* 953 * TX fragmentation parameters. As above for RTS, we treat 954 * default as implementation-dependent so define it elsewhere. 955 */ 956#define IEEE80211_FRAG_MIN 256 957#define IEEE80211_FRAG_MAX 2346 958 959/* 960 * Beacon interval (TU's). Min+max come from WiFi requirements. 961 * As above, we treat default as implementation-dependent so 962 * define it elsewhere. 963 */ 964#define IEEE80211_BINTVAL_MAX 1000 /* max beacon interval (TU's) */ 965#define IEEE80211_BINTVAL_MIN 25 /* min beacon interval (TU's) */ 966 967/* 968 * DTIM period (beacons). Min+max are not really defined 969 * by the protocol but we want them publicly visible so 970 * define them here. 971 */ 972#define IEEE80211_DTIM_MAX 15 /* max DTIM period */ 973#define IEEE80211_DTIM_MIN 1 /* min DTIM period */ 974 975/* 976 * Beacon miss threshold (beacons). As for DTIM, we define 977 * them here to be publicly visible. Note the max may be 978 * clamped depending on device capabilities. 979 */ 980#define IEEE80211_HWBMISS_MIN 1 981#define IEEE80211_HWBMISS_MAX 255 982 983/* 984 * 802.11 frame duration definitions. 985 */ 986 987struct ieee80211_duration { 988 uint16_t d_rts_dur; 989 uint16_t d_data_dur; 990 uint16_t d_plcp_len; 991 uint8_t d_residue; /* unused octets in time slot */ 992}; 993 994/* One Time Unit (TU) is 1Kus = 1024 microseconds. */ 995#define IEEE80211_DUR_TU 1024 996 997/* IEEE 802.11b durations for DSSS PHY in microseconds */ 998#define IEEE80211_DUR_DS_LONG_PREAMBLE 144 999#define IEEE80211_DUR_DS_SHORT_PREAMBLE 72 1000 1001#define IEEE80211_DUR_DS_SLOW_PLCPHDR 48 1002#define IEEE80211_DUR_DS_FAST_PLCPHDR 24 1003#define IEEE80211_DUR_DS_SLOW_ACK 112 1004#define IEEE80211_DUR_DS_FAST_ACK 56 1005#define IEEE80211_DUR_DS_SLOW_CTS 112 1006#define IEEE80211_DUR_DS_FAST_CTS 56 1007 1008#define IEEE80211_DUR_DS_SLOT 20 1009#define IEEE80211_DUR_DS_SIFS 10 1010#define IEEE80211_DUR_DS_PIFS (IEEE80211_DUR_DS_SIFS + IEEE80211_DUR_DS_SLOT) 1011#define IEEE80211_DUR_DS_DIFS (IEEE80211_DUR_DS_SIFS + \ 1012 2 * IEEE80211_DUR_DS_SLOT) 1013#define IEEE80211_DUR_DS_EIFS (IEEE80211_DUR_DS_SIFS + \ 1014 IEEE80211_DUR_DS_SLOW_ACK + \ 1015 IEEE80211_DUR_DS_LONG_PREAMBLE + \ 1016 IEEE80211_DUR_DS_SLOW_PLCPHDR + \ 1017 IEEE80211_DUR_DIFS) 1018 1019/* 1020 * Atheros fast-frame encapsulation format. 1021 * FF max payload: 1022 * 802.2 + FFHDR + HPAD + 802.3 + 802.2 + 1500 + SPAD + 802.3 + 802.2 + 1500: 1023 * 8 + 4 + 4 + 14 + 8 + 1500 + 6 + 14 + 8 + 1500 1024 * = 3066 1025 */ 1026/* fast frame header is 32-bits */ 1027#define ATH_FF_PROTO 0x0000003f /* protocol */ 1028#define ATH_FF_PROTO_S 0 1029#define ATH_FF_FTYPE 0x000000c0 /* frame type */ 1030#define ATH_FF_FTYPE_S 6 1031#define ATH_FF_HLEN32 0x00000300 /* optional hdr length */ 1032#define ATH_FF_HLEN32_S 8 1033#define ATH_FF_SEQNUM 0x001ffc00 /* sequence number */ 1034#define ATH_FF_SEQNUM_S 10 1035#define ATH_FF_OFFSET 0xffe00000 /* offset to 2nd payload */ 1036#define ATH_FF_OFFSET_S 21 1037 1038#define ATH_FF_MAX_HDR_PAD 4 1039#define ATH_FF_MAX_SEP_PAD 6 1040#define ATH_FF_MAX_HDR 30 1041 1042#define ATH_FF_PROTO_L2TUNNEL 0 /* L2 tunnel protocol */ 1043#define ATH_FF_ETH_TYPE 0x88bd /* Ether type for encapsulated frames */ 1044#define ATH_FF_SNAP_ORGCODE_0 0x00 1045#define ATH_FF_SNAP_ORGCODE_1 0x03 1046#define ATH_FF_SNAP_ORGCODE_2 0x7f 1047 1048#endif /* _NET80211_IEEE80211_H_ */ 1049