1 /* $NetBSD: ieee80211.h,v 1.26 2013/03/30 14:14:31 christos Exp $ */ 2 /*- 3 * Copyright (c) 2001 Atsushi Onoe 4 * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * Alternatively, this software may be distributed under the terms of the 19 * GNU General Public License ("GPL") version 2 as published by the Free 20 * Software Foundation. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 * 33 * $FreeBSD: src/sys/net80211/ieee80211.h,v 1.10 2005/07/22 16:55:27 sam Exp $ 34 */ 35 #ifndef _NET80211_IEEE80211_H_ 36 #define _NET80211_IEEE80211_H_ 37 38 /* 39 * 802.11 protocol definitions. 40 */ 41 42 #define IEEE80211_ADDR_LEN 6 /* size of 802.11 address */ 43 /* is 802.11 address multicast/broadcast? */ 44 #define IEEE80211_IS_MULTICAST(_a) (*(_a) & 0x01) 45 46 /* IEEE 802.11 PLCP header */ 47 struct ieee80211_plcp_hdr { 48 u_int16_t i_sfd; 49 u_int8_t i_signal; 50 u_int8_t i_service; 51 u_int16_t i_length; 52 u_int16_t i_crc; 53 } __packed; 54 55 #define IEEE80211_PLCP_SFD 0xF3A0 56 #define IEEE80211_PLCP_SERVICE 0x00 57 58 /* 59 * generic definitions for IEEE 802.11 frames 60 */ 61 struct ieee80211_frame { 62 u_int8_t i_fc[2]; 63 u_int8_t i_dur[2]; 64 u_int8_t i_addr1[IEEE80211_ADDR_LEN]; 65 u_int8_t i_addr2[IEEE80211_ADDR_LEN]; 66 u_int8_t i_addr3[IEEE80211_ADDR_LEN]; 67 u_int8_t i_seq[2]; 68 /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */ 69 /* see below */ 70 } __packed; 71 72 struct ieee80211_qosframe { 73 u_int8_t i_fc[2]; 74 u_int8_t i_dur[2]; 75 u_int8_t i_addr1[IEEE80211_ADDR_LEN]; 76 u_int8_t i_addr2[IEEE80211_ADDR_LEN]; 77 u_int8_t i_addr3[IEEE80211_ADDR_LEN]; 78 u_int8_t i_seq[2]; 79 u_int8_t i_qos[2]; 80 /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */ 81 /* see below */ 82 } __packed; 83 84 struct ieee80211_qoscntl { 85 u_int8_t i_qos[2]; 86 }; 87 88 struct ieee80211_frame_addr4 { 89 u_int8_t i_fc[2]; 90 u_int8_t i_dur[2]; 91 u_int8_t i_addr1[IEEE80211_ADDR_LEN]; 92 u_int8_t i_addr2[IEEE80211_ADDR_LEN]; 93 u_int8_t i_addr3[IEEE80211_ADDR_LEN]; 94 u_int8_t i_seq[2]; 95 u_int8_t i_addr4[IEEE80211_ADDR_LEN]; 96 } __packed; 97 98 99 struct ieee80211_qosframe_addr4 { 100 u_int8_t i_fc[2]; 101 u_int8_t i_dur[2]; 102 u_int8_t i_addr1[IEEE80211_ADDR_LEN]; 103 u_int8_t i_addr2[IEEE80211_ADDR_LEN]; 104 u_int8_t i_addr3[IEEE80211_ADDR_LEN]; 105 u_int8_t i_seq[2]; 106 u_int8_t i_addr4[IEEE80211_ADDR_LEN]; 107 u_int8_t i_qos[2]; 108 } __packed; 109 110 #define IEEE80211_FC0_VERSION_MASK 0x03 111 #define IEEE80211_FC0_VERSION_SHIFT 0 112 #define IEEE80211_FC0_VERSION_0 0x00 113 #define IEEE80211_FC0_TYPE_MASK 0x0c 114 #define IEEE80211_FC0_TYPE_SHIFT 2 115 #define IEEE80211_FC0_TYPE_MGT 0x00 116 #define IEEE80211_FC0_TYPE_CTL 0x04 117 #define IEEE80211_FC0_TYPE_DATA 0x08 118 119 #define IEEE80211_FC0_SUBTYPE_MASK 0xf0 120 #define IEEE80211_FC0_SUBTYPE_SHIFT 4 121 /* for TYPE_MGT */ 122 #define IEEE80211_FC0_SUBTYPE_ASSOC_REQ 0x00 123 #define IEEE80211_FC0_SUBTYPE_ASSOC_RESP 0x10 124 #define IEEE80211_FC0_SUBTYPE_REASSOC_REQ 0x20 125 #define IEEE80211_FC0_SUBTYPE_REASSOC_RESP 0x30 126 #define IEEE80211_FC0_SUBTYPE_PROBE_REQ 0x40 127 #define IEEE80211_FC0_SUBTYPE_PROBE_RESP 0x50 128 #define IEEE80211_FC0_SUBTYPE_BEACON 0x80 129 #define IEEE80211_FC0_SUBTYPE_ATIM 0x90 130 #define IEEE80211_FC0_SUBTYPE_DISASSOC 0xa0 131 #define IEEE80211_FC0_SUBTYPE_AUTH 0xb0 132 #define IEEE80211_FC0_SUBTYPE_DEAUTH 0xc0 133 /* for TYPE_CTL */ 134 #define IEEE80211_FC0_SUBTYPE_PS_POLL 0xa0 135 #define IEEE80211_FC0_SUBTYPE_RTS 0xb0 136 #define IEEE80211_FC0_SUBTYPE_CTS 0xc0 137 #define IEEE80211_FC0_SUBTYPE_ACK 0xd0 138 #define IEEE80211_FC0_SUBTYPE_CF_END 0xe0 139 #define IEEE80211_FC0_SUBTYPE_CF_END_ACK 0xf0 140 /* for TYPE_DATA (bit combination) */ 141 #define IEEE80211_FC0_SUBTYPE_DATA 0x00 142 #define IEEE80211_FC0_SUBTYPE_CF_ACK 0x10 143 #define IEEE80211_FC0_SUBTYPE_CF_POLL 0x20 144 #define IEEE80211_FC0_SUBTYPE_CF_ACPL 0x30 145 #define IEEE80211_FC0_SUBTYPE_NODATA 0x40 146 #define IEEE80211_FC0_SUBTYPE_CFACK 0x50 147 #define IEEE80211_FC0_SUBTYPE_CFPOLL 0x60 148 #define IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK 0x70 149 #define IEEE80211_FC0_SUBTYPE_QOS 0x80 150 #define IEEE80211_FC0_SUBTYPE_QOS_NULL 0xc0 151 152 /* 153 * DS bit usage 154 * 155 * TA = transmitter address 156 * RA = receiver address 157 * DA = destination address 158 * SA = source address 159 * 160 * ToDS FromDS A1(RA) A2(TA) A3 A4 Use 161 * ----------------------------------------------------------------- 162 * 0 0 DA SA BSSID - IBSS/DLS 163 * 0 1 DA BSSID SA - AP -> STA 164 * 1 0 BSSID SA DA - AP <- STA 165 * 1 1 RA TA DA SA unspecified (WDS) 166 */ 167 #define IEEE80211_FC1_DIR_MASK 0x03 168 #define IEEE80211_FC1_DIR_NODS 0x00 /* STA->STA */ 169 #define IEEE80211_FC1_DIR_TODS 0x01 /* STA->AP */ 170 #define IEEE80211_FC1_DIR_FROMDS 0x02 /* AP ->STA */ 171 #define IEEE80211_FC1_DIR_DSTODS 0x03 /* AP ->AP */ 172 173 #define IEEE80211_FC1_MORE_FRAG 0x04 174 #define IEEE80211_FC1_RETRY 0x08 175 #define IEEE80211_FC1_PWR_MGT 0x10 176 #define IEEE80211_FC1_MORE_DATA 0x20 177 #define IEEE80211_FC1_PROTECTED 0x40 178 #define IEEE80211_FC1_WEP 0x40 /* pre-RSNA compat */ 179 #define IEEE80211_FC1_ORDER 0x80 180 181 #define IEEE80211_SEQ_FRAG_MASK 0x000f 182 #define IEEE80211_SEQ_FRAG_SHIFT 0 183 #define IEEE80211_SEQ_SEQ_MASK 0xfff0 184 #define IEEE80211_SEQ_SEQ_SHIFT 4 185 186 #define IEEE80211_NWID_LEN 32 187 188 /* 189 * QoS Control field (see 7.1.3.5). 190 */ 191 /* bit 8 is reserved */ 192 #define IEEE80211_QOS_TXOP 0xff00 193 #define IEEE80211_QOS_AMSDU 0x0080 /* 11n */ 194 #define IEEE80211_QOS_ACKPOLICY_NORMAL 0x0000 195 #define IEEE80211_QOS_ACKPOLICY_NOACK 0x0020 196 #define IEEE80211_QOS_ACKPOLICY_NOEXPLACK 0x0040 197 #define IEEE80211_QOS_ACKPOLICY 0x0060 198 #define IEEE80211_QOS_ACKPOLICY_S 5 199 #define IEEE80211_QOS_ACKPOLICY_MASK 0x0060 200 #define IEEE80211_QOS_ACKPOLICY_BA 0x0060 201 #define IEEE80211_QOS_ESOP 0x0010 202 #define IEEE80211_QOS_ESOP_S 4 203 #define IEEE80211_QOS_TID 0x000f 204 205 /* 206 * WME/802.11e information element. 207 */ 208 struct ieee80211_wme_info { 209 u_int8_t wme_id; /* IEEE80211_ELEMID_VENDOR */ 210 u_int8_t wme_len; /* length in bytes */ 211 u_int8_t wme_oui[3]; /* 0x00, 0x50, 0xf2 */ 212 u_int8_t wme_type; /* OUI type */ 213 u_int8_t wme_subtype; /* OUI subtype */ 214 u_int8_t wme_version; /* spec revision */ 215 u_int8_t wme_info; /* QoS info */ 216 } __packed; 217 218 /* 219 * WME/802.11e Tspec Element 220 */ 221 struct ieee80211_wme_tspec { 222 u_int8_t ts_id; 223 u_int8_t ts_len; 224 u_int8_t ts_oui[3]; 225 u_int8_t ts_oui_type; 226 u_int8_t ts_oui_subtype; 227 u_int8_t ts_version; 228 u_int8_t ts_tsinfo[3]; 229 u_int8_t ts_nom_msdu[2]; 230 u_int8_t ts_max_msdu[2]; 231 u_int8_t ts_min_svc[4]; 232 u_int8_t ts_max_svc[4]; 233 u_int8_t ts_inactv_intv[4]; 234 u_int8_t ts_susp_intv[4]; 235 u_int8_t ts_start_svc[4]; 236 u_int8_t ts_min_rate[4]; 237 u_int8_t ts_mean_rate[4]; 238 u_int8_t ts_max_burst[4]; 239 u_int8_t ts_min_phy[4]; 240 u_int8_t ts_peak_rate[4]; 241 u_int8_t ts_delay[4]; 242 u_int8_t ts_surplus[2]; 243 u_int8_t ts_medium_time[2]; 244 } __packed; 245 246 /* 247 * WME AC parameter field 248 */ 249 struct ieee80211_wme_acparams { 250 u_int8_t acp_aci_aifsn; 251 u_int8_t acp_logcwminmax; 252 u_int16_t acp_txop; 253 } __packed; 254 255 /* WME stream classes */ 256 enum ieee80211_wme_ac { 257 WME_AC_BE = 0, /* best effort */ 258 WME_AC_BK = 1, /* background */ 259 WME_AC_VI = 2, /* video */ 260 WME_AC_VO = 3, /* voice */ 261 }; 262 #define WME_NUM_AC 4 /* 4 AC categories */ 263 264 #define WME_PARAM_ACI 0x60 /* Mask for ACI field */ 265 #define WME_PARAM_ACI_S 5 /* Shift for ACI field */ 266 #define WME_PARAM_ACM 0x10 /* Mask for ACM bit */ 267 #define WME_PARAM_ACM_S 4 /* Shift for ACM bit */ 268 #define WME_PARAM_AIFSN 0x0f /* Mask for aifsn field */ 269 #define WME_PARAM_AIFSN_S 0 /* Shift for aifsn field */ 270 #define WME_PARAM_LOGCWMIN 0x0f /* Mask for CwMin field (in log) */ 271 #define WME_PARAM_LOGCWMIN_S 0 /* Shift for CwMin field */ 272 #define WME_PARAM_LOGCWMAX 0xf0 /* Mask for CwMax field (in log) */ 273 #define WME_PARAM_LOGCWMAX_S 4 /* Shift for CwMax field */ 274 275 #define WME_AC_TO_TID(_ac) ( \ 276 ((_ac) == WME_AC_VO) ? 6 : \ 277 ((_ac) == WME_AC_VI) ? 5 : \ 278 ((_ac) == WME_AC_BK) ? 1 : \ 279 0) 280 281 #define TID_TO_WME_AC(_tid) ( \ 282 ((_tid) < 1) ? WME_AC_BE : \ 283 ((_tid) < 3) ? WME_AC_BK : \ 284 ((_tid) < 6) ? WME_AC_VI : \ 285 WME_AC_VO) 286 287 /* 288 * WME Parameter Element 289 */ 290 struct ieee80211_wme_param { 291 u_int8_t param_id; 292 u_int8_t param_len; 293 u_int8_t param_oui[3]; 294 u_int8_t param_oui_type; 295 u_int8_t param_oui_sybtype; 296 u_int8_t param_version; 297 u_int8_t param_qosInfo; 298 #define WME_QOSINFO_COUNT 0x0f /* Mask for param count field */ 299 u_int8_t param_reserved; 300 struct ieee80211_wme_acparams params_acParams[WME_NUM_AC]; 301 } __packed; 302 303 /* 304 * Management Notification Frame 305 */ 306 struct ieee80211_mnf { 307 u_int8_t mnf_category; 308 u_int8_t mnf_action; 309 u_int8_t mnf_dialog; 310 u_int8_t mnf_status; 311 } __packed; 312 #define MNF_SETUP_REQ 0 313 #define MNF_SETUP_RESP 1 314 #define MNF_TEARDOWN 2 315 316 /* 317 * Control frames. 318 */ 319 struct ieee80211_frame_min { 320 u_int8_t i_fc[2]; 321 u_int8_t i_dur[2]; 322 u_int8_t i_addr1[IEEE80211_ADDR_LEN]; 323 u_int8_t i_addr2[IEEE80211_ADDR_LEN]; 324 /* FCS */ 325 } __packed; 326 327 struct ieee80211_frame_rts { 328 u_int8_t i_fc[2]; 329 u_int8_t i_dur[2]; 330 u_int8_t i_ra[IEEE80211_ADDR_LEN]; 331 u_int8_t i_ta[IEEE80211_ADDR_LEN]; 332 /* FCS */ 333 } __packed; 334 335 struct ieee80211_frame_cts { 336 u_int8_t i_fc[2]; 337 u_int8_t i_dur[2]; 338 u_int8_t i_ra[IEEE80211_ADDR_LEN]; 339 /* FCS */ 340 } __packed; 341 342 struct ieee80211_frame_ack { 343 u_int8_t i_fc[2]; 344 u_int8_t i_dur[2]; 345 u_int8_t i_ra[IEEE80211_ADDR_LEN]; 346 /* FCS */ 347 } __packed; 348 349 struct ieee80211_frame_pspoll { 350 u_int8_t i_fc[2]; 351 u_int8_t i_aid[2]; 352 u_int8_t i_bssid[IEEE80211_ADDR_LEN]; 353 u_int8_t i_ta[IEEE80211_ADDR_LEN]; 354 /* FCS */ 355 } __packed; 356 357 struct ieee80211_frame_cfend { /* NB: also CF-End+CF-Ack */ 358 u_int8_t i_fc[2]; 359 u_int8_t i_dur[2]; /* should be zero */ 360 u_int8_t i_ra[IEEE80211_ADDR_LEN]; 361 u_int8_t i_bssid[IEEE80211_ADDR_LEN]; 362 /* FCS */ 363 } __packed; 364 365 static __inline int 366 ieee80211_has_seq(const struct ieee80211_frame *wh) 367 { 368 return (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != 369 IEEE80211_FC0_TYPE_CTL; 370 } 371 372 static __inline int 373 ieee80211_has_addr4(const struct ieee80211_frame *wh) 374 { 375 return (wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) == 376 IEEE80211_FC1_DIR_DSTODS; 377 } 378 379 static __inline int 380 ieee80211_has_qos(const struct ieee80211_frame *wh) 381 { 382 return (wh->i_fc[0] & 383 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == 384 (IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS); 385 } 386 387 static __inline int 388 ieee80211_has_htc(const struct ieee80211_frame *wh) 389 { 390 return (wh->i_fc[1] & IEEE80211_FC1_ORDER) && 391 (ieee80211_has_qos(wh) || 392 (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == 393 IEEE80211_FC0_TYPE_MGT); 394 } 395 396 static __inline u_int16_t 397 ieee80211_get_qos(const struct ieee80211_frame *wh) 398 { 399 const u_int8_t *frm; 400 401 if (ieee80211_has_addr4(wh)) 402 frm = ((const struct ieee80211_qosframe_addr4 *)wh)->i_qos; 403 else 404 frm = ((const struct ieee80211_qosframe *)wh)->i_qos; 405 406 return le16toh(*(const u_int16_t *)frm); 407 } 408 409 /* 410 * BEACON management packets 411 * 412 * octet timestamp[8] 413 * octet beacon interval[2] 414 * octet capability information[2] 415 * information element 416 * octet elemid 417 * octet length 418 * octet information[length] 419 */ 420 421 typedef u_int8_t *ieee80211_mgt_beacon_t; 422 423 #define IEEE80211_BEACON_INTERVAL(beacon) \ 424 ((beacon)[8] | ((beacon)[9] << 8)) 425 #define IEEE80211_BEACON_CAPABILITY(beacon) \ 426 ((beacon)[10] | ((beacon)[11] << 8)) 427 428 #define IEEE80211_CAPINFO_ESS 0x0001 429 #define IEEE80211_CAPINFO_IBSS 0x0002 430 #define IEEE80211_CAPINFO_CF_POLLABLE 0x0004 431 #define IEEE80211_CAPINFO_CF_POLLREQ 0x0008 432 #define IEEE80211_CAPINFO_PRIVACY 0x0010 433 #define IEEE80211_CAPINFO_SHORT_PREAMBLE 0x0020 434 #define IEEE80211_CAPINFO_PBCC 0x0040 435 #define IEEE80211_CAPINFO_CHNL_AGILITY 0x0080 436 /* bits 8-9 are reserved */ 437 #define IEEE80211_CAPINFO_SHORT_SLOTTIME 0x0400 438 #define IEEE80211_CAPINFO_RSN 0x0800 439 /* bit 12 is reserved */ 440 #define IEEE80211_CAPINFO_DSSSOFDM 0x2000 441 /* bits 14-15 are reserved */ 442 443 /* 444 * 802.11i/WPA information element (maximally sized). 445 */ 446 struct ieee80211_ie_wpa { 447 u_int8_t wpa_id; /* IEEE80211_ELEMID_VENDOR */ 448 u_int8_t wpa_len; /* length in bytes */ 449 u_int8_t wpa_oui[3]; /* 0x00, 0x50, 0xf2 */ 450 u_int8_t wpa_type; /* OUI type */ 451 u_int16_t wpa_version; /* spec revision */ 452 u_int32_t wpa_mcipher[1]; /* multicast/group key cipher */ 453 u_int16_t wpa_uciphercnt; /* # pairwise key ciphers */ 454 u_int32_t wpa_uciphers[8];/* ciphers */ 455 u_int16_t wpa_authselcnt; /* authentication selector cnt*/ 456 u_int32_t wpa_authsels[8];/* selectors */ 457 u_int16_t wpa_caps; /* 802.11i capabilities */ 458 u_int16_t wpa_pmkidcnt; /* 802.11i pmkid count */ 459 u_int16_t wpa_pmkids[8]; /* 802.11i pmkids */ 460 } __packed; 461 462 /* 463 * Management information element payloads. 464 */ 465 466 enum { 467 IEEE80211_ELEMID_SSID = 0, 468 IEEE80211_ELEMID_RATES = 1, 469 IEEE80211_ELEMID_FHPARMS = 2, 470 IEEE80211_ELEMID_DSPARMS = 3, 471 IEEE80211_ELEMID_CFPARMS = 4, 472 IEEE80211_ELEMID_TIM = 5, 473 IEEE80211_ELEMID_IBSSPARMS = 6, 474 IEEE80211_ELEMID_COUNTRY = 7, 475 IEEE80211_ELEMID_EDCAPARMS = 12, 476 IEEE80211_ELEMID_CHALLENGE = 16, 477 /* 17-31 reserved for challenge text extension */ 478 IEEE80211_ELEMID_PWRCNSTR = 32, 479 IEEE80211_ELEMID_PWRCAP = 33, 480 IEEE80211_ELEMID_TPCREQ = 34, 481 IEEE80211_ELEMID_TPCREP = 35, 482 IEEE80211_ELEMID_SUPPCHAN = 36, 483 IEEE80211_ELEMID_CHANSWITCHANN = 37, 484 IEEE80211_ELEMID_MEASREQ = 38, 485 IEEE80211_ELEMID_MEASREP = 39, 486 IEEE80211_ELEMID_QUIET = 40, 487 IEEE80211_ELEMID_IBSSDFS = 41, 488 IEEE80211_ELEMID_ERP = 42, 489 IEEE80211_ELEMID_HTCAP = 45, /* 11n */ 490 IEEE80211_ELEMID_QOS_CAP = 46, 491 IEEE80211_ELEMID_RSN = 48, 492 IEEE80211_ELEMID_XRATES = 50, 493 IEEE80211_ELEMID_TIE = 56, /* 11r */ 494 IEEE80211_ELEMID_HTINFO = 61, /* 11n */ 495 IEEE80211_ELEMID_MMIE = 76, /* 11w */ 496 IEEE80211_ELEMID_TPC = 150, 497 IEEE80211_ELEMID_CCKM = 156, 498 IEEE80211_ELEMID_VENDOR = 221 /* vendor private */ 499 }; 500 501 struct ieee80211_tim_ie { 502 u_int8_t tim_ie; /* IEEE80211_ELEMID_TIM */ 503 u_int8_t tim_len; 504 u_int8_t tim_count; /* DTIM count */ 505 u_int8_t tim_period; /* DTIM period */ 506 u_int8_t tim_bitctl; /* bitmap control */ 507 u_int8_t tim_bitmap[1]; /* variable-length bitmap */ 508 } __packed; 509 510 struct ieee80211_band { 511 u_int8_t schan; /* starting channel */ 512 u_int8_t nchan; /* number channels */ 513 u_int8_t maxtxpwr; /* tx power cap */ 514 } __packed; 515 516 struct ieee80211_country_ie { 517 u_int8_t ie; /* IEEE80211_ELEMID_COUNTRY */ 518 u_int8_t len; 519 u_int8_t cc[3]; /* ISO CC+(I)ndoor/(O)utdoor */ 520 struct ieee80211_band band[4]; /* up to 4 sub bands */ 521 } __packed; 522 523 #define IEEE80211_CHALLENGE_LEN 128 524 525 #define IEEE80211_RATE_BASIC 0x80 526 #define IEEE80211_RATE_VAL 0x7f 527 528 /* EPR information element flags */ 529 #define IEEE80211_ERP_NON_ERP_PRESENT 0x01 530 #define IEEE80211_ERP_USE_PROTECTION 0x02 531 #define IEEE80211_ERP_LONG_PREAMBLE 0x04 532 533 /* Atheros private advanced capabilities info */ 534 #define ATHEROS_CAP_TURBO_PRIME 0x01 535 #define ATHEROS_CAP_COMPRESSION 0x02 536 #define ATHEROS_CAP_FAST_FRAME 0x04 537 /* bits 3-6 reserved */ 538 #define ATHEROS_CAP_BOOST 0x80 539 540 #define ATH_OUI 0x7f0300 /* Atheros OUI */ 541 #define ATH_OUI_TYPE 0x01 542 #define ATH_OUI_VERSION 0x01 543 544 #define WPA_OUI 0xf25000 545 #define WPA_OUI_TYPE 0x01 546 #define WPA_VERSION 1 /* current supported version */ 547 548 #define WPA_CSE_NULL 0x00 549 #define WPA_CSE_WEP40 0x01 550 #define WPA_CSE_TKIP 0x02 551 #define WPA_CSE_CCMP 0x04 552 #define WPA_CSE_WEP104 0x05 553 554 #define WPA_ASE_NONE 0x00 555 #define WPA_ASE_8021X_UNSPEC 0x01 556 #define WPA_ASE_8021X_PSK 0x02 557 558 #define RSN_OUI 0xac0f00 559 #define RSN_VERSION 1 /* current supported version */ 560 561 #define RSN_CSE_NULL 0x00 562 #define RSN_CSE_WEP40 0x01 563 #define RSN_CSE_TKIP 0x02 564 #define RSN_CSE_WRAP 0x03 565 #define RSN_CSE_CCMP 0x04 566 #define RSN_CSE_WEP104 0x05 567 568 #define RSN_ASE_NONE 0x00 569 #define RSN_ASE_8021X_UNSPEC 0x01 570 #define RSN_ASE_8021X_PSK 0x02 571 572 #define RSN_CAP_PREAUTH 0x01 573 574 #define WME_OUI 0xf25000 575 #define WME_OUI_TYPE 0x02 576 #define WME_INFO_OUI_SUBTYPE 0x00 577 #define WME_PARAM_OUI_SUBTYPE 0x01 578 #define WME_VERSION 1 579 580 /* 581 * AUTH management packets 582 * 583 * octet algo[2] 584 * octet seq[2] 585 * octet status[2] 586 * octet chal.id 587 * octet chal.length 588 * octet chal.text[253] 589 */ 590 591 typedef u_int8_t *ieee80211_mgt_auth_t; 592 593 #define IEEE80211_AUTH_ALGORITHM(auth) \ 594 ((auth)[0] | ((auth)[1] << 8)) 595 #define IEEE80211_AUTH_TRANSACTION(auth) \ 596 ((auth)[2] | ((auth)[3] << 8)) 597 #define IEEE80211_AUTH_STATUS(auth) \ 598 ((auth)[4] | ((auth)[5] << 8)) 599 600 #define IEEE80211_AUTH_ALG_OPEN 0x0000 601 #define IEEE80211_AUTH_ALG_SHARED 0x0001 602 #define IEEE80211_AUTH_ALG_LEAP 0x0080 603 604 enum { 605 IEEE80211_AUTH_OPEN_REQUEST = 1, 606 IEEE80211_AUTH_OPEN_RESPONSE = 2 607 }; 608 609 enum { 610 IEEE80211_AUTH_SHARED_REQUEST = 1, 611 IEEE80211_AUTH_SHARED_CHALLENGE = 2, 612 IEEE80211_AUTH_SHARED_RESPONSE = 3, 613 IEEE80211_AUTH_SHARED_PASS = 4 614 }; 615 616 /* 617 * Reason codes 618 * 619 * Unlisted codes are reserved 620 */ 621 622 enum { 623 IEEE80211_REASON_UNSPECIFIED = 1, 624 IEEE80211_REASON_AUTH_EXPIRE = 2, 625 IEEE80211_REASON_AUTH_LEAVE = 3, 626 IEEE80211_REASON_ASSOC_EXPIRE = 4, 627 IEEE80211_REASON_ASSOC_TOOMANY = 5, 628 IEEE80211_REASON_NOT_AUTHED = 6, 629 IEEE80211_REASON_NOT_ASSOCED = 7, 630 IEEE80211_REASON_ASSOC_LEAVE = 8, 631 IEEE80211_REASON_ASSOC_NOT_AUTHED = 9, 632 633 IEEE80211_REASON_RSN_REQUIRED = 11, 634 IEEE80211_REASON_RSN_INCONSISTENT = 12, 635 IEEE80211_REASON_IE_INVALID = 13, 636 IEEE80211_REASON_MIC_FAILURE = 14, 637 638 IEEE80211_STATUS_SUCCESS = 0, 639 IEEE80211_STATUS_UNSPECIFIED = 1, 640 IEEE80211_STATUS_CAPINFO = 10, 641 IEEE80211_STATUS_NOT_ASSOCED = 11, 642 IEEE80211_STATUS_OTHER = 12, 643 IEEE80211_STATUS_ALG = 13, 644 IEEE80211_STATUS_SEQUENCE = 14, 645 IEEE80211_STATUS_CHALLENGE = 15, 646 IEEE80211_STATUS_TIMEOUT = 16, 647 IEEE80211_STATUS_TOOMANY = 17, 648 IEEE80211_STATUS_BASIC_RATE = 18, 649 IEEE80211_STATUS_SP_REQUIRED = 19, 650 IEEE80211_STATUS_PBCC_REQUIRED = 20, 651 IEEE80211_STATUS_CA_REQUIRED = 21, 652 IEEE80211_STATUS_TOO_MANY_STATIONS = 22, 653 IEEE80211_STATUS_RATES = 23, 654 IEEE80211_STATUS_SHORTSLOT_REQUIRED = 25, 655 IEEE80211_STATUS_DSSSOFDM_REQUIRED = 26 656 }; 657 658 #define IEEE80211_WEP_KEYLEN 5 /* 40bit */ 659 #define IEEE80211_WEP_IVLEN 3 /* 24bit */ 660 #define IEEE80211_WEP_KIDLEN 1 /* 1 octet */ 661 #define IEEE80211_WEP_CRCLEN 4 /* CRC-32 */ 662 #define IEEE80211_WEP_TOTLEN (IEEE80211_WEP_IVLEN + \ 663 IEEE80211_WEP_KIDLEN + \ 664 IEEE80211_WEP_CRCLEN) 665 #define IEEE80211_WEP_NKID 4 /* number of key ids */ 666 667 /* 668 * 802.11i defines an extended IV for use with non-WEP ciphers. 669 * When the EXTIV bit is set in the key id byte an additional 670 * 4 bytes immediately follow the IV for TKIP. For CCMP the 671 * EXTIV bit is likewise set but the 8 bytes represent the 672 * CCMP header rather than IV+extended-IV. 673 */ 674 #define IEEE80211_WEP_EXTIV 0x20 675 #define IEEE80211_WEP_EXTIVLEN 4 /* extended IV length */ 676 #define IEEE80211_WEP_MICLEN 8 /* trailing MIC */ 677 678 #define IEEE80211_CRC_LEN 4 679 680 /* 681 * Maximum acceptable MTU is: 682 * IEEE80211_MAX_LEN - WEP overhead - CRC - 683 * QoS overhead - RSN/WPA overhead 684 * Min is arbitrarily chosen > IEEE80211_MIN_LEN. The default 685 * mtu is Ethernet-compatible; it's set by ether_ifattach. 686 */ 687 #define IEEE80211_MTU_MAX 2290 688 #define IEEE80211_MTU_MIN 32 689 690 #define IEEE80211_MAX_LEN (2300 + IEEE80211_CRC_LEN + \ 691 (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN)) 692 #define IEEE80211_ACK_LEN \ 693 (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN) 694 #define IEEE80211_MIN_LEN \ 695 (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN) 696 697 /* 698 * The 802.11 spec says at most 2007 stations may be 699 * associated at once. For most AP's this is way more 700 * than is feasible so we use a default of 128. This 701 * number may be overridden by the driver and/or by 702 * user configuration. 703 */ 704 #define IEEE80211_AID_MAX 2007 705 #define IEEE80211_AID_DEF 128 706 707 #define IEEE80211_AID(b) ((b) &~ 0xc000) 708 709 /* 710 * RTS frame length parameters. The default is specified in 711 * the 802.11 spec as 512; we treat it as implementation-dependent 712 * so it's defined in ieee80211_var.h. The max may be wrong 713 * for jumbo frames. 714 */ 715 #define IEEE80211_RTS_MIN 1 716 #define IEEE80211_RTS_MAX 2346 717 718 /* 719 * TX fragmentation parameters. As above for RTS, we treat 720 * default as implementation-dependent so define it elsewhere. 721 */ 722 #define IEEE80211_FRAG_MIN 256 723 #define IEEE80211_FRAG_MAX 2346 724 725 /* 726 * 802.11 frame duration definitions. 727 */ 728 729 struct ieee80211_duration { 730 uint16_t d_rts_dur; 731 uint16_t d_data_dur; 732 uint16_t d_plcp_len; 733 uint8_t d_residue; /* unused octets in time slot */ 734 }; 735 736 /* One Time Unit (TU) is 1Kus = 1024 microseconds. */ 737 #define IEEE80211_DUR_TU 1024 738 739 /* IEEE 802.11b durations for DSSS PHY in microseconds */ 740 #define IEEE80211_DUR_DS_LONG_PREAMBLE 144 741 #define IEEE80211_DUR_DS_SHORT_PREAMBLE 72 742 743 #define IEEE80211_DUR_DS_SLOW_PLCPHDR 48 744 #define IEEE80211_DUR_DS_FAST_PLCPHDR 24 745 #define IEEE80211_DUR_DS_SLOW_ACK 112 746 #define IEEE80211_DUR_DS_FAST_ACK 56 747 #define IEEE80211_DUR_DS_SLOW_CTS 112 748 #define IEEE80211_DUR_DS_FAST_CTS 56 749 750 #define IEEE80211_DUR_DS_SLOT 20 751 #define IEEE80211_DUR_DS_SIFS 10 752 #define IEEE80211_DUR_DS_PIFS (IEEE80211_DUR_DS_SIFS + IEEE80211_DUR_DS_SLOT) 753 #define IEEE80211_DUR_DS_DIFS (IEEE80211_DUR_DS_SIFS + \ 754 2 * IEEE80211_DUR_DS_SLOT) 755 #define IEEE80211_DUR_DS_EIFS (IEEE80211_DUR_DS_SIFS + \ 756 IEEE80211_DUR_DS_SLOW_ACK + \ 757 IEEE80211_DUR_DS_LONG_PREAMBLE + \ 758 IEEE80211_DUR_DS_SLOW_PLCPHDR + \ 759 IEEE80211_DUR_DS_DIFS) 760 761 762 #endif /* !_NET80211_IEEE80211_H_ */ 763