ieee80211.h revision 173273
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 173273 2007-11-02 05:22:25Z 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) < 1) ? 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_enable; 330 uint8_t am_mode; 331} __packed; 332 333/* Block Ack actions */ 334#define IEEE80211_ACTION_BA_ADDBA_REQUEST 0 /* ADDBA request */ 335#define IEEE80211_ACTION_BA_ADDBA_RESPONSE 1 /* ADDBA response */ 336#define IEEE80211_ACTION_BA_DELBA 2 /* DELBA */ 337 338/* Block Ack Parameter Set */ 339#define IEEE80211_BAPS_BUFSIZ 0xffc0 /* buffer size */ 340#define IEEE80211_BAPS_BUFSIZ_S 6 341#define IEEE80211_BAPS_TID 0x003c /* TID */ 342#define IEEE80211_BAPS_TID_S 2 343#define IEEE80211_BAPS_POLICY 0x0002 /* block ack policy */ 344#define IEEE80211_BAPS_POLICY_S 1 345 346#define IEEE80211_BAPS_POLICY_DELAYED (0<<IEEE80211_BAPS_POLICY_S) 347#define IEEE80211_BAPS_POLICY_IMMEDIATE (1<<IEEE80211_BAPS_POLICY_S) 348 349/* Block Ack Sequence Control */ 350#define IEEE80211_BASEQ_START 0xfff0 /* starting seqnum */ 351#define IEEE80211_BASEQ_START_S 4 352#define IEEE80211_BASEQ_FRAG 0x000f /* fragment number */ 353#define IEEE80211_BASEQ_FRAG_S 0 354 355/* Delayed Block Ack Parameter Set */ 356#define IEEE80211_DELBAPS_TID 0xf000 /* TID */ 357#define IEEE80211_DELBAPS_TID_S 12 358#define IEEE80211_DELBAPS_INIT 0x0800 /* initiator */ 359#define IEEE80211_DELBAPS_INIT_S 11 360 361/* BA - ADDBA request */ 362struct ieee80211_action_ba_addbarequest { 363 struct ieee80211_action rq_header; 364 uint8_t rq_dialogtoken; 365 uint16_t rq_baparamset; 366 uint16_t rq_batimeout; /* in TUs */ 367 uint16_t rq_baseqctl; 368} __packed; 369 370/* BA - ADDBA response */ 371struct ieee80211_action_ba_addbaresponse { 372 struct ieee80211_action rs_header; 373 uint8_t rs_dialogtoken; 374 uint16_t rs_statuscode; 375 uint16_t rs_baparamset; 376 uint16_t rs_batimeout; /* in TUs */ 377} __packed; 378 379/* BA - DELBA */ 380struct ieee80211_action_ba_delba { 381 struct ieee80211_action dl_header; 382 uint16_t dl_baparamset; 383 uint16_t dl_reasoncode; 384} __packed; 385 386/* BAR Control */ 387#define IEEE80211_BAR_TID 0xf000 /* TID */ 388#define IEEE80211_BAR_TID_S 12 389#define IEEE80211_BAR_COMP 0x0004 /* compressed */ 390#define IEEE80211_BAR_MTID 0x0002 391#define IEEE80211_BAR_NOACK 0x0001 /* no-ack policy */ 392 393struct ieee80211_ba_request { 394 uint16_t rq_barctl; 395 uint16_t rq_barseqctl; 396} __packed; 397 398/* 399 * Control frames. 400 */ 401struct ieee80211_frame_min { 402 uint8_t i_fc[2]; 403 uint8_t i_dur[2]; 404 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 405 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 406 /* FCS */ 407} __packed; 408 409struct ieee80211_frame_rts { 410 uint8_t i_fc[2]; 411 uint8_t i_dur[2]; 412 uint8_t i_ra[IEEE80211_ADDR_LEN]; 413 uint8_t i_ta[IEEE80211_ADDR_LEN]; 414 /* FCS */ 415} __packed; 416 417struct ieee80211_frame_cts { 418 uint8_t i_fc[2]; 419 uint8_t i_dur[2]; 420 uint8_t i_ra[IEEE80211_ADDR_LEN]; 421 /* FCS */ 422} __packed; 423 424struct ieee80211_frame_ack { 425 uint8_t i_fc[2]; 426 uint8_t i_dur[2]; 427 uint8_t i_ra[IEEE80211_ADDR_LEN]; 428 /* FCS */ 429} __packed; 430 431struct ieee80211_frame_pspoll { 432 uint8_t i_fc[2]; 433 uint8_t i_aid[2]; 434 uint8_t i_bssid[IEEE80211_ADDR_LEN]; 435 uint8_t i_ta[IEEE80211_ADDR_LEN]; 436 /* FCS */ 437} __packed; 438 439struct ieee80211_frame_cfend { /* NB: also CF-End+CF-Ack */ 440 uint8_t i_fc[2]; 441 uint8_t i_dur[2]; /* should be zero */ 442 uint8_t i_ra[IEEE80211_ADDR_LEN]; 443 uint8_t i_bssid[IEEE80211_ADDR_LEN]; 444 /* FCS */ 445} __packed; 446 447struct ieee80211_frame_bar { 448 uint8_t i_fc[2]; 449 uint8_t i_dur[2]; 450 uint8_t i_ra[IEEE80211_ADDR_LEN]; 451 uint8_t i_ta[IEEE80211_ADDR_LEN]; 452 uint16_t i_ctl; 453 uint16_t i_seq; 454 /* FCS */ 455} __packed; 456 457/* 458 * BEACON management packets 459 * 460 * octet timestamp[8] 461 * octet beacon interval[2] 462 * octet capability information[2] 463 * information element 464 * octet elemid 465 * octet length 466 * octet information[length] 467 */ 468 469#define IEEE80211_BEACON_INTERVAL(beacon) \ 470 ((beacon)[8] | ((beacon)[9] << 8)) 471#define IEEE80211_BEACON_CAPABILITY(beacon) \ 472 ((beacon)[10] | ((beacon)[11] << 8)) 473 474#define IEEE80211_CAPINFO_ESS 0x0001 475#define IEEE80211_CAPINFO_IBSS 0x0002 476#define IEEE80211_CAPINFO_CF_POLLABLE 0x0004 477#define IEEE80211_CAPINFO_CF_POLLREQ 0x0008 478#define IEEE80211_CAPINFO_PRIVACY 0x0010 479#define IEEE80211_CAPINFO_SHORT_PREAMBLE 0x0020 480#define IEEE80211_CAPINFO_PBCC 0x0040 481#define IEEE80211_CAPINFO_CHNL_AGILITY 0x0080 482#define IEEE80211_CAPINFO_SPECTRUM_MGMT 0x0100 483/* bit 9 is reserved */ 484#define IEEE80211_CAPINFO_SHORT_SLOTTIME 0x0400 485#define IEEE80211_CAPINFO_RSN 0x0800 486/* bit 12 is reserved */ 487#define IEEE80211_CAPINFO_DSSSOFDM 0x2000 488/* bits 14-15 are reserved */ 489 490/* 491 * 802.11i/WPA information element (maximally sized). 492 */ 493struct ieee80211_ie_wpa { 494 uint8_t wpa_id; /* IEEE80211_ELEMID_VENDOR */ 495 uint8_t wpa_len; /* length in bytes */ 496 uint8_t wpa_oui[3]; /* 0x00, 0x50, 0xf2 */ 497 uint8_t wpa_type; /* OUI type */ 498 uint16_t wpa_version; /* spec revision */ 499 uint32_t wpa_mcipher[1]; /* multicast/group key cipher */ 500 uint16_t wpa_uciphercnt; /* # pairwise key ciphers */ 501 uint32_t wpa_uciphers[8];/* ciphers */ 502 uint16_t wpa_authselcnt; /* authentication selector cnt*/ 503 uint32_t wpa_authsels[8];/* selectors */ 504 uint16_t wpa_caps; /* 802.11i capabilities */ 505 uint16_t wpa_pmkidcnt; /* 802.11i pmkid count */ 506 uint16_t wpa_pmkids[8]; /* 802.11i pmkids */ 507} __packed; 508 509/* 510 * 802.11n HT Capability IE 511 * NB: these reflect D1.10 512 */ 513struct ieee80211_ie_htcap { 514 uint8_t hc_id; /* element ID */ 515 uint8_t hc_len; /* length in bytes */ 516 uint16_t hc_cap; /* HT caps (see below) */ 517 uint8_t hc_param; /* HT params (see below) */ 518 uint8_t hc_mcsset[16]; /* supported MCS set */ 519 uint16_t hc_extcap; /* extended HT capabilities */ 520 uint32_t hc_txbf; /* txbf capabilities */ 521 uint8_t hc_antenna; /* antenna capabilities */ 522} __packed; 523 524/* HT capability flags (ht_cap) */ 525#define IEEE80211_HTCAP_LDPC 0x0001 /* LDPC supported */ 526#define IEEE80211_HTCAP_CHWIDTH40 0x0002 /* 20/40 supported */ 527#define IEEE80211_HTCAP_SMPS 0x000c /* SM Power Save mode */ 528#define IEEE80211_HTCAP_SMPS_OFF 0x0000 /* none (static mode) */ 529#define IEEE80211_HTCAP_SMPS_DYNAMIC 0x0004 /* send RTS first */ 530/* NB: SMPS value 2 is reserved */ 531#define IEEE80211_HTCAP_SMPS_ENA 0x000c /* enabled */ 532#define IEEE80211_HTCAP_GREENFIELD 0x0010 /* Greenfield supported */ 533#define IEEE80211_HTCAP_SHORTGI20 0x0020 /* Short GI in 20MHz */ 534#define IEEE80211_HTCAP_SHORTGI40 0x0040 /* Short GI in 40MHz */ 535#define IEEE80211_HTCAP_TXSTBC 0x0080 /* STBC tx ok */ 536#define IEEE80211_HTCAP_RXSTBC 0x0300 /* STBC rx support */ 537#define IEEE80211_HTCAP_RXSTBC_S 8 538#define IEEE80211_HTCAP_RXSTBC_1STREAM 0x0100 /* 1 spatial stream */ 539#define IEEE80211_HTCAP_RXSTBC_2STREAM 0x0200 /* 1-2 spatial streams*/ 540#define IEEE80211_HTCAP_RXSTBC_3STREAM 0x0300 /* 1-3 spatial streams*/ 541#define IEEE80211_HTCAP_DELBA 0x0400 /* HT DELBA supported */ 542#define IEEE80211_HTCAP_MAXAMSDU 0x0800 /* max A-MSDU length */ 543#define IEEE80211_HTCAP_MAXAMSDU_7935 0x0800 /* 7935 octets */ 544#define IEEE80211_HTCAP_MAXAMSDU_3839 0x0000 /* 3839 octets */ 545#define IEEE80211_HTCAP_DSSSCCK40 0x1000 /* DSSS/CCK in 40MHz */ 546#define IEEE80211_HTCAP_PSMP 0x2000 /* PSMP supported */ 547#define IEEE80211_HTCAP_40INTOLERANT 0x4000 /* 40MHz intolerant */ 548#define IEEE80211_HTCAP_LSIGTXOPPROT 0x8000 /* L-SIG TXOP prot */ 549 550/* HT parameters (hc_param) */ 551#define IEEE80211_HTCAP_MAXRXAMPDU 0x03 /* max rx A-MPDU factor */ 552#define IEEE80211_HTCAP_MAXRXAMPDU_S 0 553#define IEEE80211_HTCAP_MAXRXAMPDU_8K 0 554#define IEEE80211_HTCAP_MAXRXAMPDU_16K 1 555#define IEEE80211_HTCAP_MAXRXAMPDU_32K 2 556#define IEEE80211_HTCAP_MAXRXAMPDU_64K 3 557#define IEEE80211_HTCAP_MPDUDENSITY 0x1c /* min MPDU start spacing */ 558#define IEEE80211_HTCAP_MPDUDENSITY_S 2 559#define IEEE80211_HTCAP_MPDUDENSITY_NA 0 /* no time restriction */ 560#define IEEE80211_HTCAP_MPDUDENSITY_025 1 /* 1/4 us */ 561#define IEEE80211_HTCAP_MPDUDENSITY_05 2 /* 1/2 us */ 562#define IEEE80211_HTCAP_MPDUDENSITY_1 3 /* 1 us */ 563#define IEEE80211_HTCAP_MPDUDENSITY_2 4 /* 2 us */ 564#define IEEE80211_HTCAP_MPDUDENSITY_4 5 /* 4 us */ 565#define IEEE80211_HTCAP_MPDUDENSITY_8 6 /* 8 us */ 566#define IEEE80211_HTCAP_MPDUDENSITY_16 7 /* 16 us */ 567 568/* HT extended capabilities (hc_extcap) */ 569#define IEEE80211_HTCAP_PCO 0x0001 /* PCO capable */ 570#define IEEE80211_HTCAP_PCOTRANS 0x0006 /* PCO transition time */ 571#define IEEE80211_HTCAP_PCOTRANS_S 1 572#define IEEE80211_HTCAP_PCOTRANS_04 0x0002 /* 400 us */ 573#define IEEE80211_HTCAP_PCOTRANS_15 0x0004 /* 1.5 ms */ 574#define IEEE80211_HTCAP_PCOTRANS_5 0x0006 /* 5 ms */ 575/* bits 3-7 reserved */ 576#define IEEE80211_HTCAP_MCSFBACK 0x0300 /* MCS feedback */ 577#define IEEE80211_HTCAP_MCSFBACK_S 8 578#define IEEE80211_HTCAP_MCSFBACK_NONE 0x0000 /* nothing provided */ 579#define IEEE80211_HTCAP_MCSFBACK_UNSOL 0x0200 /* unsolicited feedback */ 580#define IEEE80211_HTCAP_MCSFBACK_MRQ 0x0300 /* " "+respond to MRQ */ 581#define IEEE80211_HTCAP_HTC 0x0400 /* +HTC support */ 582#define IEEE80211_HTCAP_RDR 0x0800 /* reverse direction responder*/ 583/* bits 12-15 reserved */ 584 585/* 586 * 802.11n HT Information IE 587 */ 588struct ieee80211_ie_htinfo { 589 uint8_t hi_id; /* element ID */ 590 uint8_t hi_len; /* length in bytes */ 591 uint8_t hi_ctrlchannel; /* primary channel */ 592 uint8_t hi_byte1; /* ht ie byte 1 */ 593 uint8_t hi_byte2; /* ht ie byte 2 */ 594 uint8_t hi_byte3; /* ht ie byte 3 */ 595 uint16_t hi_byte45; /* ht ie bytes 4+5 */ 596 uint8_t hi_basicmcsset[16]; /* basic MCS set */ 597} __packed; 598 599/* byte1 */ 600#define IEEE80211_HTINFO_2NDCHAN 0x03 /* secondary/ext chan offset */ 601#define IEEE80211_HTINFO_2NDCHAN_S 0 602#define IEEE80211_HTINFO_2NDCHAN_NONE 0x00 /* no secondary/ext channel */ 603#define IEEE80211_HTINFO_2NDCHAN_ABOVE 0x01 /* above private channel */ 604/* NB: 2 is reserved */ 605#define IEEE80211_HTINFO_2NDCHAN_BELOW 0x03 /* below primary channel */ 606#define IEEE80211_HTINFO_TXWIDTH 0x04 /* tx channel width */ 607#define IEEE80211_HTINFO_TXWIDTH_20 0x00 /* 20MHz width */ 608#define IEEE80211_HTINFO_TXWIDTH_2040 0x04 /* any supported width */ 609#define IEEE80211_HTINFO_RIFSMODE 0x08 /* Reduced IFS (RIFS) use */ 610#define IEEE80211_HTINFO_RIFSMODE_PROH 0x00 /* RIFS use prohibited */ 611#define IEEE80211_HTINFO_RIFSMODE_PERM 0x08 /* RIFS use permitted */ 612#define IEEE80211_HTINFO_PMSPONLY 0x10 /* PSMP required to associate */ 613#define IEEE80211_HTINFO_SIGRAN 0xe0 /* shortest Service Interval */ 614#define IEEE80211_HTINFO_SIGRAN_S 5 615#define IEEE80211_HTINFO_SIGRAN_5 0x00 /* 5 ms */ 616/* XXX add rest */ 617 618/* bytes 2+3 */ 619#define IEEE80211_HTINFO_OPMODE 0x03 /* operating mode */ 620#define IEEE80211_HTINFO_OPMODE_S 0 621#define IEEE80211_HTINFO_OPMODE_PURE 0x00 /* no protection */ 622#define IEEE80211_HTINFO_OPMODE_PROTOPT 0x01 /* protection optional */ 623#define IEEE80211_HTINFO_OPMODE_HT20PR 0x02 /* protection for HT20 sta's */ 624#define IEEE80211_HTINFO_OPMODE_MIXED 0x03 /* protection for legacy sta's*/ 625#define IEEE80211_HTINFO_NONGF_PRESENT 0x04 /* non-GF sta's present */ 626#define IEEE80211_HTINFO_TXBL 0x08 /* transmit burst limit */ 627#define IEEE80211_HTINFO_NONHT_PRESENT 0x10 /* non-HT sta's present */ 628/* bits 5-15 reserved */ 629 630/* bytes 4+5 */ 631#define IEEE80211_HTINFO_2NDARYBEACON 0x01 632#define IEEE80211_HTINFO_LSIGTXOPPROT 0x02 633#define IEEE80211_HTINFO_PCO_ACTIVE 0x04 634#define IEEE80211_HTINFO_40MHZPHASE 0x08 635 636/* byte5 */ 637#define IEEE80211_HTINFO_BASIC_STBCMCS 0x7f 638#define IEEE80211_HTINFO_BASIC_STBCMCS_S 0 639#define IEEE80211_HTINFO_DUALPROTECTED 0x80 640 641/* 642 * Management information element payloads. 643 */ 644 645enum { 646 IEEE80211_ELEMID_SSID = 0, 647 IEEE80211_ELEMID_RATES = 1, 648 IEEE80211_ELEMID_FHPARMS = 2, 649 IEEE80211_ELEMID_DSPARMS = 3, 650 IEEE80211_ELEMID_CFPARMS = 4, 651 IEEE80211_ELEMID_TIM = 5, 652 IEEE80211_ELEMID_IBSSPARMS = 6, 653 IEEE80211_ELEMID_COUNTRY = 7, 654 IEEE80211_ELEMID_CHALLENGE = 16, 655 /* 17-31 reserved for challenge text extension */ 656 IEEE80211_ELEMID_PWRCNSTR = 32, 657 IEEE80211_ELEMID_PWRCAP = 33, 658 IEEE80211_ELEMID_TPCREQ = 34, 659 IEEE80211_ELEMID_TPCREP = 35, 660 IEEE80211_ELEMID_SUPPCHAN = 36, 661 IEEE80211_ELEMID_CHANSWITCHANN = 37, 662 IEEE80211_ELEMID_MEASREQ = 38, 663 IEEE80211_ELEMID_MEASREP = 39, 664 IEEE80211_ELEMID_QUIET = 40, 665 IEEE80211_ELEMID_IBSSDFS = 41, 666 IEEE80211_ELEMID_ERP = 42, 667 IEEE80211_ELEMID_HTCAP = 45, 668 IEEE80211_ELEMID_RSN = 48, 669 IEEE80211_ELEMID_XRATES = 50, 670 IEEE80211_ELEMID_HTINFO = 61, 671 IEEE80211_ELEMID_TPC = 150, 672 IEEE80211_ELEMID_CCKM = 156, 673 IEEE80211_ELEMID_VENDOR = 221, /* vendor private */ 674}; 675 676struct ieee80211_tim_ie { 677 uint8_t tim_ie; /* IEEE80211_ELEMID_TIM */ 678 uint8_t tim_len; 679 uint8_t tim_count; /* DTIM count */ 680 uint8_t tim_period; /* DTIM period */ 681 uint8_t tim_bitctl; /* bitmap control */ 682 uint8_t tim_bitmap[1]; /* variable-length bitmap */ 683} __packed; 684 685struct ieee80211_country_ie { 686 uint8_t ie; /* IEEE80211_ELEMID_COUNTRY */ 687 uint8_t len; 688 uint8_t cc[3]; /* ISO CC+(I)ndoor/(O)utdoor */ 689 struct { 690 uint8_t schan; /* starting channel */ 691 uint8_t nchan; /* number channels */ 692 uint8_t maxtxpwr; /* tx power cap */ 693 } __packed band[10]; /* sub bands */ 694} __packed; 695 696/* 697 * 802.11h Channel Switch Announcement (CSA). 698 */ 699struct ieee80211_csa_ie { 700 uint8_t csa_ie; /* IEEE80211_ELEMID_CHANSWITCHANN */ 701 uint8_t csa_len; 702 uint8_t csa_mode; /* Channel Switch Mode */ 703 uint8_t csa_newchan; /* New Channel Number */ 704 uint8_t csa_count; /* Channel Switch Count */ 705} __packed; 706 707/* 708 * Atheros advanced capability information element. 709 */ 710struct ieee80211_ath_ie { 711 uint8_t ath_id; /* IEEE80211_ELEMID_VENDOR */ 712 uint8_t ath_len; /* length in bytes */ 713 uint8_t ath_oui[3]; /* 0x00, 0x03, 0x7f */ 714 uint8_t ath_oui_type; /* OUI type */ 715 uint8_t ath_oui_subtype; /* OUI subtype */ 716 uint8_t ath_version; /* spec revision */ 717 uint8_t ath_capability; /* capability info */ 718#define ATHEROS_CAP_TURBO_PRIME 0x01 /* dynamic turbo--aka Turbo' */ 719#define ATHEROS_CAP_COMPRESSION 0x02 /* data compression */ 720#define ATHEROS_CAP_FAST_FRAME 0x04 /* fast (jumbo) frames */ 721#define ATHEROS_CAP_XR 0x08 /* Xtended Range support */ 722#define ATHEROS_CAP_AR 0x10 /* Advanded Radar support */ 723#define ATHEROS_CAP_BURST 0x20 /* Bursting - not negotiated */ 724#define ATHEROS_CAP_WME 0x40 /* CWMin tuning */ 725#define ATHEROS_CAP_BOOST 0x80 /* use turbo/!turbo mode */ 726 uint8_t ath_defkeyix[2]; 727} __packed; 728 729/* rate set entries are in .5 Mb/s units, and potentially marked as basic */ 730#define IEEE80211_RATE_BASIC 0x80 731#define IEEE80211_RATE_VAL 0x7f 732 733/* EPR information element flags */ 734#define IEEE80211_ERP_NON_ERP_PRESENT 0x01 735#define IEEE80211_ERP_USE_PROTECTION 0x02 736#define IEEE80211_ERP_LONG_PREAMBLE 0x04 737 738#define ATH_OUI 0x7f0300 /* Atheros OUI */ 739#define ATH_OUI_TYPE 0x01 740#define ATH_OUI_SUBTYPE 0x01 741#define ATH_OUI_VERSION 0x00 742 743#define BCM_OUI 0x4c9000 /* Broadcom OUI */ 744#define BCM_OUI_HTCAP 51 /* pre-draft HTCAP ie */ 745#define BCM_OUI_HTINFO 52 /* pre-draft HTINFO ie */ 746 747#define WPA_OUI 0xf25000 748#define WPA_OUI_TYPE 0x01 749#define WPA_VERSION 1 /* current supported version */ 750 751#define WPA_CSE_NULL 0x00 752#define WPA_CSE_WEP40 0x01 753#define WPA_CSE_TKIP 0x02 754#define WPA_CSE_CCMP 0x04 755#define WPA_CSE_WEP104 0x05 756 757#define WPA_ASE_NONE 0x00 758#define WPA_ASE_8021X_UNSPEC 0x01 759#define WPA_ASE_8021X_PSK 0x02 760 761#define RSN_OUI 0xac0f00 762#define RSN_VERSION 1 /* current supported version */ 763 764#define RSN_CSE_NULL 0x00 765#define RSN_CSE_WEP40 0x01 766#define RSN_CSE_TKIP 0x02 767#define RSN_CSE_WRAP 0x03 768#define RSN_CSE_CCMP 0x04 769#define RSN_CSE_WEP104 0x05 770 771#define RSN_ASE_NONE 0x00 772#define RSN_ASE_8021X_UNSPEC 0x01 773#define RSN_ASE_8021X_PSK 0x02 774 775#define RSN_CAP_PREAUTH 0x01 776 777#define WME_OUI 0xf25000 778#define WME_OUI_TYPE 0x02 779#define WME_INFO_OUI_SUBTYPE 0x00 780#define WME_PARAM_OUI_SUBTYPE 0x01 781#define WME_VERSION 1 782 783/* WME stream classes */ 784#define WME_AC_BE 0 /* best effort */ 785#define WME_AC_BK 1 /* background */ 786#define WME_AC_VI 2 /* video */ 787#define WME_AC_VO 3 /* voice */ 788 789/* 790 * AUTH management packets 791 * 792 * octet algo[2] 793 * octet seq[2] 794 * octet status[2] 795 * octet chal.id 796 * octet chal.length 797 * octet chal.text[253] NB: 1-253 bytes 798 */ 799 800/* challenge length for shared key auth */ 801#define IEEE80211_CHALLENGE_LEN 128 802 803#define IEEE80211_AUTH_ALG_OPEN 0x0000 804#define IEEE80211_AUTH_ALG_SHARED 0x0001 805#define IEEE80211_AUTH_ALG_LEAP 0x0080 806 807enum { 808 IEEE80211_AUTH_OPEN_REQUEST = 1, 809 IEEE80211_AUTH_OPEN_RESPONSE = 2, 810}; 811 812enum { 813 IEEE80211_AUTH_SHARED_REQUEST = 1, 814 IEEE80211_AUTH_SHARED_CHALLENGE = 2, 815 IEEE80211_AUTH_SHARED_RESPONSE = 3, 816 IEEE80211_AUTH_SHARED_PASS = 4, 817}; 818 819/* 820 * Reason and status codes. 821 * 822 * Reason codes are used in management frames to indicate why an 823 * action took place (e.g. on disassociation). Status codes are 824 * used in management frames to indicate the result of an operation. 825 * 826 * Unlisted codes are reserved 827 */ 828 829enum { 830 IEEE80211_REASON_UNSPECIFIED = 1, 831 IEEE80211_REASON_AUTH_EXPIRE = 2, 832 IEEE80211_REASON_AUTH_LEAVE = 3, 833 IEEE80211_REASON_ASSOC_EXPIRE = 4, 834 IEEE80211_REASON_ASSOC_TOOMANY = 5, 835 IEEE80211_REASON_NOT_AUTHED = 6, 836 IEEE80211_REASON_NOT_ASSOCED = 7, 837 IEEE80211_REASON_ASSOC_LEAVE = 8, 838 IEEE80211_REASON_ASSOC_NOT_AUTHED = 9, 839 IEEE80211_REASON_DISASSOC_PWRCAP_BAD = 10, /* 11h */ 840 IEEE80211_REASON_DISASSOC_SUPCHAN_BAD = 11, /* 11h */ 841 IEEE80211_REASON_IE_INVALID = 13, /* 11i */ 842 IEEE80211_REASON_MIC_FAILURE = 14, /* 11i */ 843 IEEE80211_REASON_4WAY_HANDSHAKE_TIMEOUT = 15, /* 11i */ 844 IEEE80211_REASON_GROUP_KEY_UPDATE_TIMEOUT = 16, /* 11i */ 845 IEEE80211_REASON_IE_IN_4WAY_DIFFERS = 17, /* 11i */ 846 IEEE80211_REASON_GROUP_CIPHER_INVALID = 18, /* 11i */ 847 IEEE80211_REASON_PAIRWISE_CIPHER_INVALID= 19, /* 11i */ 848 IEEE80211_REASON_AKMP_INVALID = 20, /* 11i */ 849 IEEE80211_REASON_UNSUPP_RSN_IE_VERSION = 21, /* 11i */ 850 IEEE80211_REASON_INVALID_RSN_IE_CAP = 22, /* 11i */ 851 IEEE80211_REASON_802_1X_AUTH_FAILED = 23, /* 11i */ 852 IEEE80211_REASON_CIPHER_SUITE_REJECTED = 24, /* 11i */ 853 854 IEEE80211_STATUS_SUCCESS = 0, 855 IEEE80211_STATUS_UNSPECIFIED = 1, 856 IEEE80211_STATUS_CAPINFO = 10, 857 IEEE80211_STATUS_NOT_ASSOCED = 11, 858 IEEE80211_STATUS_OTHER = 12, 859 IEEE80211_STATUS_ALG = 13, 860 IEEE80211_STATUS_SEQUENCE = 14, 861 IEEE80211_STATUS_CHALLENGE = 15, 862 IEEE80211_STATUS_TIMEOUT = 16, 863 IEEE80211_STATUS_TOOMANY = 17, 864 IEEE80211_STATUS_BASIC_RATE = 18, 865 IEEE80211_STATUS_SP_REQUIRED = 19, /* 11b */ 866 IEEE80211_STATUS_PBCC_REQUIRED = 20, /* 11b */ 867 IEEE80211_STATUS_CA_REQUIRED = 21, /* 11b */ 868 IEEE80211_STATUS_SPECMGMT_REQUIRED = 22, /* 11h */ 869 IEEE80211_STATUS_PWRCAP_REQUIRED = 23, /* 11h */ 870 IEEE80211_STATUS_SUPCHAN_REQUIRED = 24, /* 11h */ 871 IEEE80211_STATUS_SHORTSLOT_REQUIRED = 25, /* 11g */ 872 IEEE80211_STATUS_DSSSOFDM_REQUIRED = 26, /* 11g */ 873 IEEE80211_STATUS_INVALID_IE = 40, /* 11i */ 874 IEEE80211_STATUS_GROUP_CIPHER_INVALID = 41, /* 11i */ 875 IEEE80211_STATUS_PAIRWISE_CIPHER_INVALID = 42, /* 11i */ 876 IEEE80211_STATUS_AKMP_INVALID = 43, /* 11i */ 877 IEEE80211_STATUS_UNSUPP_RSN_IE_VERSION = 44, /* 11i */ 878 IEEE80211_STATUS_INVALID_RSN_IE_CAP = 45, /* 11i */ 879 IEEE80211_STATUS_CIPHER_SUITE_REJECTED = 46, /* 11i */ 880}; 881 882#define IEEE80211_WEP_KEYLEN 5 /* 40bit */ 883#define IEEE80211_WEP_IVLEN 3 /* 24bit */ 884#define IEEE80211_WEP_KIDLEN 1 /* 1 octet */ 885#define IEEE80211_WEP_CRCLEN 4 /* CRC-32 */ 886#define IEEE80211_WEP_NKID 4 /* number of key ids */ 887 888/* 889 * 802.11i defines an extended IV for use with non-WEP ciphers. 890 * When the EXTIV bit is set in the key id byte an additional 891 * 4 bytes immediately follow the IV for TKIP. For CCMP the 892 * EXTIV bit is likewise set but the 8 bytes represent the 893 * CCMP header rather than IV+extended-IV. 894 */ 895#define IEEE80211_WEP_EXTIV 0x20 896#define IEEE80211_WEP_EXTIVLEN 4 /* extended IV length */ 897#define IEEE80211_WEP_MICLEN 8 /* trailing MIC */ 898 899#define IEEE80211_CRC_LEN 4 900 901/* 902 * Maximum acceptable MTU is: 903 * IEEE80211_MAX_LEN - WEP overhead - CRC - 904 * QoS overhead - RSN/WPA overhead 905 * Min is arbitrarily chosen > IEEE80211_MIN_LEN. The default 906 * mtu is Ethernet-compatible; it's set by ether_ifattach. 907 */ 908#define IEEE80211_MTU_MAX 2290 909#define IEEE80211_MTU_MIN 32 910 911#define IEEE80211_MAX_LEN (2300 + IEEE80211_CRC_LEN + \ 912 (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN)) 913#define IEEE80211_ACK_LEN \ 914 (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN) 915#define IEEE80211_MIN_LEN \ 916 (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN) 917 918/* 919 * The 802.11 spec says at most 2007 stations may be 920 * associated at once. For most AP's this is way more 921 * than is feasible so we use a default of 128. This 922 * number may be overridden by the driver and/or by 923 * user configuration. 924 */ 925#define IEEE80211_AID_MAX 2007 926#define IEEE80211_AID_DEF 128 927 928#define IEEE80211_AID(b) ((b) &~ 0xc000) 929 930/* 931 * RTS frame length parameters. The default is specified in 932 * the 802.11 spec as 512; we treat it as implementation-dependent 933 * so it's defined in ieee80211_var.h. The max may be wrong 934 * for jumbo frames. 935 */ 936#define IEEE80211_RTS_MIN 1 937#define IEEE80211_RTS_MAX 2346 938 939/* 940 * TX fragmentation parameters. As above for RTS, we treat 941 * default as implementation-dependent so define it elsewhere. 942 */ 943#define IEEE80211_FRAG_MIN 256 944#define IEEE80211_FRAG_MAX 2346 945 946/* 947 * Beacon interval (TU's). Min+max come from WiFi requirements. 948 * As above, we treat default as implementation-dependent so 949 * define it elsewhere. 950 */ 951#define IEEE80211_BINTVAL_MAX 1000 /* max beacon interval (TU's) */ 952#define IEEE80211_BINTVAL_MIN 25 /* min beacon interval (TU's) */ 953 954/* 955 * DTIM period (beacons). Min+max are not really defined 956 * by the protocol but we want them publicly visible so 957 * define them here. 958 */ 959#define IEEE80211_DTIM_MAX 15 /* max DTIM period */ 960#define IEEE80211_DTIM_MIN 1 /* min DTIM period */ 961 962/* 963 * Beacon miss threshold (beacons). As for DTIM, we define 964 * them here to be publicly visible. Note the max may be 965 * clamped depending on device capabilities. 966 */ 967#define IEEE80211_HWBMISS_MIN 1 968#define IEEE80211_HWBMISS_MAX 255 969 970/* 971 * 802.11 frame duration definitions. 972 */ 973 974struct ieee80211_duration { 975 uint16_t d_rts_dur; 976 uint16_t d_data_dur; 977 uint16_t d_plcp_len; 978 uint8_t d_residue; /* unused octets in time slot */ 979}; 980 981/* One Time Unit (TU) is 1Kus = 1024 microseconds. */ 982#define IEEE80211_DUR_TU 1024 983 984/* IEEE 802.11b durations for DSSS PHY in microseconds */ 985#define IEEE80211_DUR_DS_LONG_PREAMBLE 144 986#define IEEE80211_DUR_DS_SHORT_PREAMBLE 72 987 988#define IEEE80211_DUR_DS_SLOW_PLCPHDR 48 989#define IEEE80211_DUR_DS_FAST_PLCPHDR 24 990#define IEEE80211_DUR_DS_SLOW_ACK 112 991#define IEEE80211_DUR_DS_FAST_ACK 56 992#define IEEE80211_DUR_DS_SLOW_CTS 112 993#define IEEE80211_DUR_DS_FAST_CTS 56 994 995#define IEEE80211_DUR_DS_SLOT 20 996#define IEEE80211_DUR_DS_SIFS 10 997#define IEEE80211_DUR_DS_PIFS (IEEE80211_DUR_DS_SIFS + IEEE80211_DUR_DS_SLOT) 998#define IEEE80211_DUR_DS_DIFS (IEEE80211_DUR_DS_SIFS + \ 999 2 * IEEE80211_DUR_DS_SLOT) 1000#define IEEE80211_DUR_DS_EIFS (IEEE80211_DUR_DS_SIFS + \ 1001 IEEE80211_DUR_DS_SLOW_ACK + \ 1002 IEEE80211_DUR_DS_LONG_PREAMBLE + \ 1003 IEEE80211_DUR_DS_SLOW_PLCPHDR + \ 1004 IEEE80211_DUR_DIFS) 1005 1006/* 1007 * Atheros fast-frame encapsulation format. 1008 * FF max payload: 1009 * 802.2 + FFHDR + HPAD + 802.3 + 802.2 + 1500 + SPAD + 802.3 + 802.2 + 1500: 1010 * 8 + 4 + 4 + 14 + 8 + 1500 + 6 + 14 + 8 + 1500 1011 * = 3066 1012 */ 1013/* fast frame header is 32-bits */ 1014#define ATH_FF_PROTO 0x0000003f /* protocol */ 1015#define ATH_FF_PROTO_S 0 1016#define ATH_FF_FTYPE 0x000000c0 /* frame type */ 1017#define ATH_FF_FTYPE_S 6 1018#define ATH_FF_HLEN32 0x00000300 /* optional hdr length */ 1019#define ATH_FF_HLEN32_S 8 1020#define ATH_FF_SEQNUM 0x001ffc00 /* sequence number */ 1021#define ATH_FF_SEQNUM_S 10 1022#define ATH_FF_OFFSET 0xffe00000 /* offset to 2nd payload */ 1023#define ATH_FF_OFFSET_S 21 1024 1025#define ATH_FF_MAX_HDR_PAD 4 1026#define ATH_FF_MAX_SEP_PAD 6 1027#define ATH_FF_MAX_HDR 30 1028 1029#define ATH_FF_PROTO_L2TUNNEL 0 /* L2 tunnel protocol */ 1030#define ATH_FF_ETH_TYPE 0x88bd /* Ether type for encapsulated frames */ 1031#define ATH_FF_SNAP_ORGCODE_0 0x00 1032#define ATH_FF_SNAP_ORGCODE_1 0x03 1033#define ATH_FF_SNAP_ORGCODE_2 0x7f 1034 1035#endif /* _NET80211_IEEE80211_H_ */ 1036