1 /* 2 * Copyright (c) 2001 Atsushi Onoe 3 * Copyright (c) 2002-2005 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 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * Alternatively, this software may be distributed under the terms of the 18 * GNU General Public License ("GPL") version 2 as published by the Free 19 * Software Foundation. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 * 32 * $FreeBSD: src/sys/net80211/ieee80211.h,v 1.9.2.2 2006/08/10 06:07:49 sam Exp $ 33 * $DragonFly: src/sys/netproto/802_11/ieee80211.h,v 1.10 2008/05/20 19:23:25 dillon 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 44 /* is 802.11 address multicast/broadcast? */ 45 #define IEEE80211_IS_MULTICAST(_a) (*(_a) & 0x01) 46 47 /* IEEE 802.11 PLCP header */ 48 struct ieee80211_plcp_hdr { 49 uint16_t i_sfd; 50 uint8_t i_signal; 51 uint8_t i_service; 52 uint16_t i_length; 53 uint16_t i_crc; 54 } __packed; 55 56 #define IEEE80211_PLCP_SFD 0xF3A0 57 #define IEEE80211_PLCP_SERVICE 0x00 58 59 /* 60 * generic definitions for IEEE 802.11 frames 61 */ 62 struct ieee80211_frame { 63 uint8_t i_fc[2]; 64 uint8_t i_dur[2]; 65 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 66 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 67 uint8_t i_addr3[IEEE80211_ADDR_LEN]; 68 uint8_t i_seq[2]; 69 /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */ 70 /* see below */ 71 } __packed; 72 73 struct ieee80211_qosframe { 74 uint8_t i_fc[2]; 75 uint8_t i_dur[2]; 76 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 77 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 78 uint8_t i_addr3[IEEE80211_ADDR_LEN]; 79 uint8_t i_seq[2]; 80 uint8_t i_qos[2]; 81 /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */ 82 /* see below */ 83 } __packed; 84 85 struct ieee80211_qoscntl { 86 uint8_t i_qos[2]; 87 }; 88 89 struct ieee80211_frame_addr4 { 90 uint8_t i_fc[2]; 91 uint8_t i_dur[2]; 92 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 93 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 94 uint8_t i_addr3[IEEE80211_ADDR_LEN]; 95 uint8_t i_seq[2]; 96 uint8_t i_addr4[IEEE80211_ADDR_LEN]; 97 } __packed; 98 99 100 struct ieee80211_qosframe_addr4 { 101 uint8_t i_fc[2]; 102 uint8_t i_dur[2]; 103 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 104 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 105 uint8_t i_addr3[IEEE80211_ADDR_LEN]; 106 uint8_t i_seq[2]; 107 uint8_t i_addr4[IEEE80211_ADDR_LEN]; 108 uint8_t i_qos[2]; 109 } __packed; 110 111 #define IEEE80211_FC0_VERSION_MASK 0x03 112 #define IEEE80211_FC0_VERSION_SHIFT 0 113 #define IEEE80211_FC0_VERSION_0 0x00 114 #define IEEE80211_FC0_TYPE_MASK 0x0c 115 #define IEEE80211_FC0_TYPE_SHIFT 2 116 #define IEEE80211_FC0_TYPE_MGT 0x00 117 #define IEEE80211_FC0_TYPE_CTL 0x04 118 #define IEEE80211_FC0_TYPE_DATA 0x08 119 120 #define IEEE80211_FC0_SUBTYPE_MASK 0xf0 121 #define IEEE80211_FC0_SUBTYPE_SHIFT 4 122 /* for TYPE_MGT */ 123 #define IEEE80211_FC0_SUBTYPE_ASSOC_REQ 0x00 124 #define IEEE80211_FC0_SUBTYPE_ASSOC_RESP 0x10 125 #define IEEE80211_FC0_SUBTYPE_REASSOC_REQ 0x20 126 #define IEEE80211_FC0_SUBTYPE_REASSOC_RESP 0x30 127 #define IEEE80211_FC0_SUBTYPE_PROBE_REQ 0x40 128 #define IEEE80211_FC0_SUBTYPE_PROBE_RESP 0x50 129 #define IEEE80211_FC0_SUBTYPE_BEACON 0x80 130 #define IEEE80211_FC0_SUBTYPE_ATIM 0x90 131 #define IEEE80211_FC0_SUBTYPE_DISASSOC 0xa0 132 #define IEEE80211_FC0_SUBTYPE_AUTH 0xb0 133 #define IEEE80211_FC0_SUBTYPE_DEAUTH 0xc0 134 /* for TYPE_CTL */ 135 #define IEEE80211_FC0_SUBTYPE_PS_POLL 0xa0 136 #define IEEE80211_FC0_SUBTYPE_RTS 0xb0 137 #define IEEE80211_FC0_SUBTYPE_CTS 0xc0 138 #define IEEE80211_FC0_SUBTYPE_ACK 0xd0 139 #define IEEE80211_FC0_SUBTYPE_CF_END 0xe0 140 #define IEEE80211_FC0_SUBTYPE_CF_END_ACK 0xf0 141 /* for TYPE_DATA (bit combination) */ 142 #define IEEE80211_FC0_SUBTYPE_DATA 0x00 143 #define IEEE80211_FC0_SUBTYPE_CF_ACK 0x10 144 #define IEEE80211_FC0_SUBTYPE_CF_POLL 0x20 145 #define IEEE80211_FC0_SUBTYPE_CF_ACPL 0x30 146 #define IEEE80211_FC0_SUBTYPE_NODATA 0x40 147 #define IEEE80211_FC0_SUBTYPE_CFACK 0x50 148 #define IEEE80211_FC0_SUBTYPE_CFPOLL 0x60 149 #define IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK 0x70 150 #define IEEE80211_FC0_SUBTYPE_QOS 0x80 151 #define IEEE80211_FC0_SUBTYPE_QOS_NULL 0xc0 152 153 #define IEEE80211_FC1_DIR_MASK 0x03 154 #define IEEE80211_FC1_DIR_NODS 0x00 /* STA->STA */ 155 #define IEEE80211_FC1_DIR_TODS 0x01 /* STA->AP */ 156 #define IEEE80211_FC1_DIR_FROMDS 0x02 /* AP ->STA */ 157 #define IEEE80211_FC1_DIR_DSTODS 0x03 /* AP ->AP */ 158 159 #define IEEE80211_FC1_MORE_FRAG 0x04 160 #define IEEE80211_FC1_RETRY 0x08 161 #define IEEE80211_FC1_PWR_MGT 0x10 162 #define IEEE80211_FC1_MORE_DATA 0x20 163 #define IEEE80211_FC1_PROTECTED 0x40 164 #define IEEE80211_FC1_WEP 0x40 /* pre-RSNA compat */ 165 #define IEEE80211_FC1_ORDER 0x80 166 167 #define IEEE80211_SEQ_FRAG_MASK 0x000f 168 #define IEEE80211_SEQ_FRAG_SHIFT 0 169 #define IEEE80211_SEQ_SEQ_MASK 0xfff0 170 #define IEEE80211_SEQ_SEQ_SHIFT 4 171 172 #define IEEE80211_NWID_LEN 32 173 174 #define IEEE80211_QOS_TXOP 0x00ff 175 /* bit 8 is reserved */ 176 #define IEEE80211_QOS_ACKPOLICY 0x60 177 #define IEEE80211_QOS_ACKPOLICY_S 5 178 #define IEEE80211_QOS_ESOP 0x10 179 #define IEEE80211_QOS_ESOP_S 4 180 #define IEEE80211_QOS_TID 0x0f 181 182 /* does frame have QoS sequence control data */ 183 #define IEEE80211_QOS_HAS_SEQ(wh) \ 184 (((wh)->i_fc[0] & \ 185 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == \ 186 (IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS)) 187 188 /* 189 * WME/802.11e information element. 190 */ 191 struct ieee80211_wme_info { 192 uint8_t wme_id; /* IEEE80211_ELEMID_VENDOR */ 193 uint8_t wme_len; /* length in bytes */ 194 uint8_t wme_oui[3]; /* 0x00, 0x50, 0xf2 */ 195 uint8_t wme_type; /* OUI type */ 196 uint8_t wme_subtype; /* OUI subtype */ 197 uint8_t wme_version; /* spec revision */ 198 uint8_t wme_info; /* QoS info */ 199 } __packed; 200 201 /* 202 * WME/802.11e Tspec Element 203 */ 204 struct ieee80211_wme_tspec { 205 uint8_t ts_id; 206 uint8_t ts_len; 207 uint8_t ts_oui[3]; 208 uint8_t ts_oui_type; 209 uint8_t ts_oui_subtype; 210 uint8_t ts_version; 211 uint8_t ts_tsinfo[3]; 212 uint8_t ts_nom_msdu[2]; 213 uint8_t ts_max_msdu[2]; 214 uint8_t ts_min_svc[4]; 215 uint8_t ts_max_svc[4]; 216 uint8_t ts_inactv_intv[4]; 217 uint8_t ts_susp_intv[4]; 218 uint8_t ts_start_svc[4]; 219 uint8_t ts_min_rate[4]; 220 uint8_t ts_mean_rate[4]; 221 uint8_t ts_max_burst[4]; 222 uint8_t ts_min_phy[4]; 223 uint8_t ts_peak_rate[4]; 224 uint8_t ts_delay[4]; 225 uint8_t ts_surplus[2]; 226 uint8_t ts_medium_time[2]; 227 } __packed; 228 229 /* 230 * WME AC parameter field 231 */ 232 struct ieee80211_wme_acparams { 233 uint8_t acp_aci_aifsn; 234 uint8_t acp_logcwminmax; 235 uint16_t acp_txop; 236 } __packed; 237 238 #define WME_NUM_AC 4 /* 4 AC categories */ 239 240 #define WME_PARAM_ACI 0x60 /* Mask for ACI field */ 241 #define WME_PARAM_ACI_S 5 /* Shift for ACI field */ 242 #define WME_PARAM_ACM 0x10 /* Mask for ACM bit */ 243 #define WME_PARAM_ACM_S 4 /* Shift for ACM bit */ 244 #define WME_PARAM_AIFSN 0x0f /* Mask for aifsn field */ 245 #define WME_PARAM_AIFSN_S 0 /* Shift for aifsn field */ 246 #define WME_PARAM_LOGCWMIN 0x0f /* Mask for CwMin field (in log) */ 247 #define WME_PARAM_LOGCWMIN_S 0 /* Shift for CwMin field */ 248 #define WME_PARAM_LOGCWMAX 0xf0 /* Mask for CwMax field (in log) */ 249 #define WME_PARAM_LOGCWMAX_S 4 /* Shift for CwMax field */ 250 251 #define WME_AC_TO_TID(_ac) ( \ 252 ((_ac) == WME_AC_VO) ? 6 : \ 253 ((_ac) == WME_AC_VI) ? 5 : \ 254 ((_ac) == WME_AC_BK) ? 1 : \ 255 0) 256 257 #define TID_TO_WME_AC(_tid) ( \ 258 ((_tid) < 1) ? WME_AC_BE : \ 259 ((_tid) < 3) ? WME_AC_BK : \ 260 ((_tid) < 6) ? WME_AC_VI : \ 261 WME_AC_VO) 262 263 /* 264 * WME Parameter Element 265 */ 266 struct ieee80211_wme_param { 267 uint8_t param_id; 268 uint8_t param_len; 269 uint8_t param_oui[3]; 270 uint8_t param_oui_type; 271 uint8_t param_oui_sybtype; 272 uint8_t param_version; 273 uint8_t param_qosInfo; 274 #define WME_QOSINFO_COUNT 0x0f /* Mask for param count field */ 275 uint8_t param_reserved; 276 struct ieee80211_wme_acparams params_acParams[WME_NUM_AC]; 277 } __packed; 278 279 /* 280 * Management Notification Frame 281 */ 282 struct ieee80211_mnf { 283 uint8_t mnf_category; 284 uint8_t mnf_action; 285 uint8_t mnf_dialog; 286 uint8_t mnf_status; 287 } __packed; 288 #define MNF_SETUP_REQ 0 289 #define MNF_SETUP_RESP 1 290 #define MNF_TEARDOWN 2 291 292 /* 293 * Control frames. 294 */ 295 struct ieee80211_frame_min { 296 uint8_t i_fc[2]; 297 uint8_t i_dur[2]; 298 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 299 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 300 /* FCS */ 301 } __packed; 302 303 struct ieee80211_frame_rts { 304 uint8_t i_fc[2]; 305 uint8_t i_dur[2]; 306 uint8_t i_ra[IEEE80211_ADDR_LEN]; 307 uint8_t i_ta[IEEE80211_ADDR_LEN]; 308 /* FCS */ 309 } __packed; 310 311 struct ieee80211_frame_cts { 312 uint8_t i_fc[2]; 313 uint8_t i_dur[2]; 314 uint8_t i_ra[IEEE80211_ADDR_LEN]; 315 /* FCS */ 316 } __packed; 317 318 struct ieee80211_frame_ack { 319 uint8_t i_fc[2]; 320 uint8_t i_dur[2]; 321 uint8_t i_ra[IEEE80211_ADDR_LEN]; 322 /* FCS */ 323 } __packed; 324 325 struct ieee80211_frame_pspoll { 326 uint8_t i_fc[2]; 327 uint8_t i_aid[2]; 328 uint8_t i_bssid[IEEE80211_ADDR_LEN]; 329 uint8_t i_ta[IEEE80211_ADDR_LEN]; 330 /* FCS */ 331 } __packed; 332 333 struct ieee80211_frame_cfend { /* NB: also CF-End+CF-Ack */ 334 uint8_t i_fc[2]; 335 uint8_t i_dur[2]; /* should be zero */ 336 uint8_t i_ra[IEEE80211_ADDR_LEN]; 337 uint8_t i_bssid[IEEE80211_ADDR_LEN]; 338 /* FCS */ 339 } __packed; 340 341 /* 342 * BEACON management packets 343 * 344 * octet timestamp[8] 345 * octet beacon interval[2] 346 * octet capability information[2] 347 * information element 348 * octet elemid 349 * octet length 350 * octet information[length] 351 */ 352 353 typedef uint8_t *ieee80211_mgt_beacon_t; 354 355 #define IEEE80211_BEACON_INTERVAL(beacon) \ 356 ((beacon)[8] | ((beacon)[9] << 8)) 357 #define IEEE80211_BEACON_CAPABILITY(beacon) \ 358 ((beacon)[10] | ((beacon)[11] << 8)) 359 360 #define IEEE80211_CAPINFO_ESS 0x0001 361 #define IEEE80211_CAPINFO_IBSS 0x0002 362 #define IEEE80211_CAPINFO_CF_POLLABLE 0x0004 363 #define IEEE80211_CAPINFO_CF_POLLREQ 0x0008 364 #define IEEE80211_CAPINFO_PRIVACY 0x0010 365 #define IEEE80211_CAPINFO_SHORT_PREAMBLE 0x0020 366 #define IEEE80211_CAPINFO_PBCC 0x0040 367 #define IEEE80211_CAPINFO_CHNL_AGILITY 0x0080 368 /* bits 8-9 are reserved */ 369 #define IEEE80211_CAPINFO_SHORT_SLOTTIME 0x0400 370 #define IEEE80211_CAPINFO_RSN 0x0800 371 /* bit 12 is reserved */ 372 #define IEEE80211_CAPINFO_DSSSOFDM 0x2000 373 /* bits 14-15 are reserved */ 374 375 /* 376 * 802.11i/WPA information element (maximally sized). 377 */ 378 struct ieee80211_ie_wpa { 379 uint8_t wpa_id; /* IEEE80211_ELEMID_VENDOR */ 380 uint8_t wpa_len; /* length in bytes */ 381 uint8_t wpa_oui[3]; /* 0x00, 0x50, 0xf2 */ 382 uint8_t wpa_type; /* OUI type */ 383 uint16_t wpa_version; /* spec revision */ 384 uint32_t wpa_mcipher[1]; /* multicast/group key cipher */ 385 uint16_t wpa_uciphercnt; /* # pairwise key ciphers */ 386 uint32_t wpa_uciphers[8];/* ciphers */ 387 uint16_t wpa_authselcnt; /* authentication selector cnt*/ 388 uint32_t wpa_authsels[8];/* selectors */ 389 uint16_t wpa_caps; /* 802.11i capabilities */ 390 uint16_t wpa_pmkidcnt; /* 802.11i pmkid count */ 391 uint16_t wpa_pmkids[8]; /* 802.11i pmkids */ 392 } __packed; 393 394 /* 395 * Management information element payloads. 396 */ 397 398 enum { 399 IEEE80211_ELEMID_SSID = 0, 400 IEEE80211_ELEMID_RATES = 1, 401 IEEE80211_ELEMID_FHPARMS = 2, 402 IEEE80211_ELEMID_DSPARMS = 3, 403 IEEE80211_ELEMID_CFPARMS = 4, 404 IEEE80211_ELEMID_TIM = 5, 405 IEEE80211_ELEMID_IBSSPARMS = 6, 406 IEEE80211_ELEMID_COUNTRY = 7, 407 IEEE80211_ELEMID_CHALLENGE = 16, 408 /* 17-31 reserved for challenge text extension */ 409 IEEE80211_ELEMID_ERP = 42, 410 IEEE80211_ELEMID_RSN = 48, 411 IEEE80211_ELEMID_XRATES = 50, 412 IEEE80211_ELEMID_TPC = 150, 413 IEEE80211_ELEMID_CCKM = 156, 414 IEEE80211_ELEMID_VENDOR = 221, /* vendor private */ 415 }; 416 417 struct ieee80211_tim_ie { 418 uint8_t tim_ie; /* IEEE80211_ELEMID_TIM */ 419 uint8_t tim_len; 420 uint8_t tim_count; /* DTIM count */ 421 uint8_t tim_period; /* DTIM period */ 422 uint8_t tim_bitctl; /* bitmap control */ 423 uint8_t tim_bitmap[1]; /* variable-length bitmap */ 424 } __packed; 425 426 struct ieee80211_country_ie { 427 uint8_t ie; /* IEEE80211_ELEMID_COUNTRY */ 428 uint8_t len; 429 uint8_t cc[3]; /* ISO CC+(I)ndoor/(O)utdoor */ 430 struct { 431 uint8_t schan; /* starting channel */ 432 uint8_t nchan; /* number channels */ 433 uint8_t maxtxpwr; /* tx power cap */ 434 } __packed band[4]; /* up to 4 sub bands */ 435 } __packed; 436 437 #define IEEE80211_CHALLENGE_LEN 128 438 439 #define IEEE80211_RATE_BASIC 0x80 440 #define IEEE80211_RATE_VAL 0x7f 441 #define IEEE80211_RS_RATE(rs, idx) \ 442 ((rs)->rs_rates[idx] & IEEE80211_RATE_VAL) 443 444 /* EPR information element flags */ 445 #define IEEE80211_ERP_NON_ERP_PRESENT 0x01 446 #define IEEE80211_ERP_USE_PROTECTION 0x02 447 #define IEEE80211_ERP_LONG_PREAMBLE 0x04 448 449 /* Atheros private advanced capabilities info */ 450 #define ATHEROS_CAP_TURBO_PRIME 0x01 451 #define ATHEROS_CAP_COMPRESSION 0x02 452 #define ATHEROS_CAP_FAST_FRAME 0x04 453 /* bits 3-6 reserved */ 454 #define ATHEROS_CAP_BOOST 0x80 455 456 #define ATH_OUI 0x7f0300 /* Atheros OUI */ 457 #define ATH_OUI_TYPE 0x01 458 #define ATH_OUI_VERSION 0x01 459 460 #define WPA_OUI 0xf25000 461 #define WPA_OUI_TYPE 0x01 462 #define WPA_VERSION 1 /* current supported version */ 463 464 #define WPA_CSE_NULL 0x00 465 #define WPA_CSE_WEP40 0x01 466 #define WPA_CSE_TKIP 0x02 467 #define WPA_CSE_CCMP 0x04 468 #define WPA_CSE_WEP104 0x05 469 470 #define WPA_ASE_NONE 0x00 471 #define WPA_ASE_8021X_UNSPEC 0x01 472 #define WPA_ASE_8021X_PSK 0x02 473 474 #define RSN_OUI 0xac0f00 475 #define RSN_VERSION 1 /* current supported version */ 476 477 #define RSN_CSE_NULL 0x00 478 #define RSN_CSE_WEP40 0x01 479 #define RSN_CSE_TKIP 0x02 480 #define RSN_CSE_WRAP 0x03 481 #define RSN_CSE_CCMP 0x04 482 #define RSN_CSE_WEP104 0x05 483 484 #define RSN_ASE_NONE 0x00 485 #define RSN_ASE_8021X_UNSPEC 0x01 486 #define RSN_ASE_8021X_PSK 0x02 487 488 #define RSN_CAP_PREAUTH 0x01 489 490 #define WME_OUI 0xf25000 491 #define WME_OUI_TYPE 0x02 492 #define WME_INFO_OUI_SUBTYPE 0x00 493 #define WME_PARAM_OUI_SUBTYPE 0x01 494 #define WME_VERSION 1 495 496 /* WME stream classes */ 497 #define WME_AC_BE 0 /* best effort */ 498 #define WME_AC_BK 1 /* background */ 499 #define WME_AC_VI 2 /* video */ 500 #define WME_AC_VO 3 /* voice */ 501 502 /* 503 * AUTH management packets 504 * 505 * octet algo[2] 506 * octet seq[2] 507 * octet status[2] 508 * octet chal.id 509 * octet chal.length 510 * octet chal.text[253] 511 */ 512 513 typedef uint8_t *ieee80211_mgt_auth_t; 514 515 #define IEEE80211_AUTH_ALGORITHM(auth) \ 516 ((auth)[0] | ((auth)[1] << 8)) 517 #define IEEE80211_AUTH_TRANSACTION(auth) \ 518 ((auth)[2] | ((auth)[3] << 8)) 519 #define IEEE80211_AUTH_STATUS(auth) \ 520 ((auth)[4] | ((auth)[5] << 8)) 521 522 #define IEEE80211_AUTH_ALG_OPEN 0x0000 523 #define IEEE80211_AUTH_ALG_SHARED 0x0001 524 #define IEEE80211_AUTH_ALG_LEAP 0x0080 525 526 enum { 527 IEEE80211_AUTH_OPEN_REQUEST = 1, 528 IEEE80211_AUTH_OPEN_RESPONSE = 2, 529 }; 530 531 enum { 532 IEEE80211_AUTH_SHARED_REQUEST = 1, 533 IEEE80211_AUTH_SHARED_CHALLENGE = 2, 534 IEEE80211_AUTH_SHARED_RESPONSE = 3, 535 IEEE80211_AUTH_SHARED_PASS = 4, 536 }; 537 538 /* 539 * Reason codes 540 * 541 * Unlisted codes are reserved 542 */ 543 544 enum { 545 IEEE80211_REASON_UNSPECIFIED = 1, 546 IEEE80211_REASON_AUTH_EXPIRE = 2, 547 IEEE80211_REASON_AUTH_LEAVE = 3, 548 IEEE80211_REASON_ASSOC_EXPIRE = 4, 549 IEEE80211_REASON_ASSOC_TOOMANY = 5, 550 IEEE80211_REASON_NOT_AUTHED = 6, 551 IEEE80211_REASON_NOT_ASSOCED = 7, 552 IEEE80211_REASON_ASSOC_LEAVE = 8, 553 IEEE80211_REASON_ASSOC_NOT_AUTHED = 9, 554 555 IEEE80211_REASON_RSN_REQUIRED = 11, 556 IEEE80211_REASON_RSN_INCONSISTENT = 12, 557 IEEE80211_REASON_IE_INVALID = 13, 558 IEEE80211_REASON_MIC_FAILURE = 14, 559 560 IEEE80211_STATUS_SUCCESS = 0, 561 IEEE80211_STATUS_UNSPECIFIED = 1, 562 IEEE80211_STATUS_CAPINFO = 10, 563 IEEE80211_STATUS_NOT_ASSOCED = 11, 564 IEEE80211_STATUS_OTHER = 12, 565 IEEE80211_STATUS_ALG = 13, 566 IEEE80211_STATUS_SEQUENCE = 14, 567 IEEE80211_STATUS_CHALLENGE = 15, 568 IEEE80211_STATUS_TIMEOUT = 16, 569 IEEE80211_STATUS_TOOMANY = 17, 570 IEEE80211_STATUS_BASIC_RATE = 18, 571 IEEE80211_STATUS_SP_REQUIRED = 19, 572 IEEE80211_STATUS_PBCC_REQUIRED = 20, 573 IEEE80211_STATUS_CA_REQUIRED = 21, 574 IEEE80211_STATUS_TOO_MANY_STATIONS = 22, 575 IEEE80211_STATUS_RATES = 23, 576 IEEE80211_STATUS_SHORTSLOT_REQUIRED = 25, 577 IEEE80211_STATUS_DSSSOFDM_REQUIRED = 26, 578 }; 579 580 #define IEEE80211_WEP_KEYLEN 5 /* 40bit */ 581 #define IEEE80211_WEP_IVLEN 3 /* 24bit */ 582 #define IEEE80211_WEP_KIDLEN 1 /* 1 octet */ 583 #define IEEE80211_WEP_CRCLEN 4 /* CRC-32 */ 584 #define IEEE80211_WEP_NKID 4 /* number of key ids */ 585 586 /* 587 * 802.11i defines an extended IV for use with non-WEP ciphers. 588 * When the EXTIV bit is set in the key id byte an additional 589 * 4 bytes immediately follow the IV for TKIP. For CCMP the 590 * EXTIV bit is likewise set but the 8 bytes represent the 591 * CCMP header rather than IV+extended-IV. 592 */ 593 #define IEEE80211_WEP_EXTIV 0x20 594 #define IEEE80211_WEP_EXTIVLEN 4 /* extended IV length */ 595 #define IEEE80211_WEP_MICLEN 8 /* trailing MIC */ 596 597 #define IEEE80211_CRC_LEN 4 598 599 /* 600 * Maximum acceptable MTU is: 601 * IEEE80211_MAX_LEN - WEP overhead - CRC - 602 * QoS overhead - RSN/WPA overhead 603 * Min is arbitrarily chosen > IEEE80211_MIN_LEN. The default 604 * mtu is Ethernet-compatible; it's set by ether_ifattach. 605 */ 606 #define IEEE80211_MTU_MAX 2290 607 #define IEEE80211_MTU_MIN 32 608 609 #define IEEE80211_MAX_LEN (2300 + IEEE80211_CRC_LEN + \ 610 (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN)) 611 #define IEEE80211_ACK_LEN \ 612 (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN) 613 #define IEEE80211_MIN_LEN \ 614 (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN) 615 616 /* 617 * The 802.11 spec says at most 2007 stations may be 618 * associated at once. For most AP's this is way more 619 * than is feasible so we use a default of 128. This 620 * number may be overridden by the driver and/or by 621 * user configuration. 622 */ 623 #define IEEE80211_AID_MAX 2007 624 #define IEEE80211_AID_DEF 128 625 626 #define IEEE80211_AID(b) ((b) &~ 0xc000) 627 628 /* 629 * RTS frame length parameters. The default is specified in 630 * the 802.11 spec as 512; we treat it as implementation-dependent 631 * so it's defined in ieee80211_var.h. The max may be wrong 632 * for jumbo frames. 633 */ 634 #define IEEE80211_RTS_MIN 1 635 #define IEEE80211_RTS_MAX 2346 636 637 /* 638 * TX fragmentation parameters. As above for RTS, we treat 639 * default as implementation-dependent so define it elsewhere. 640 */ 641 #define IEEE80211_FRAG_MIN 256 642 #define IEEE80211_FRAG_MAX 2346 643 644 /* 645 * Beacon interval (TU's). Min+max come from WiFi requirements. 646 * As above, we treat default as implementation-dependent so 647 * define it elsewhere. 648 */ 649 #define IEEE80211_BINTVAL_MAX 1000 /* max beacon interval (TU's) */ 650 #define IEEE80211_BINTVAL_MIN 25 /* min beacon interval (TU's) */ 651 652 /* 653 * DTIM period (beacons). Min+max are not really defined 654 * by the protocol but we want them publicly visible so 655 * define them here. 656 */ 657 #define IEEE80211_DTIM_MAX 15 /* max DTIM period */ 658 #define IEEE80211_DTIM_MIN 1 /* min DTIM period */ 659 660 /* 661 * Beacon miss threshold (beacons). As for DTIM, we define 662 * them here to be publicly visible. Note the max may be 663 * clamped depending on device capabilities. 664 */ 665 #define IEEE80211_HWBMISS_MIN 1 666 #define IEEE80211_HWBMISS_MAX 255 667 668 /* 669 * Contention window (slots). 670 */ 671 #define IEEE80211_CW_MAX 1023 /* aCWmax */ 672 #define IEEE80211_CW_MIN_0 31 /* DS/CCK aCWmin, ERP aCWmin(0) */ 673 #define IEEE80211_CW_MIN_1 15 /* OFDM aCWmin, ERP aCWmin(1) */ 674 675 /* 676 * SIFS (microseconds). 677 */ 678 #define IEEE80211_DUR_SIFS 10 /* DS/CCK/ERP SIFS */ 679 #define IEEE80211_DUR_OFDM_SIFS 16 /* OFDM SIFS */ 680 681 /* 682 * Slot time (microseconds). 683 */ 684 #define IEEE80211_DUR_SLOT 20 /* DS/CCK slottime, ERP long slottime */ 685 #define IEEE80211_DUR_SHSLOT 9 /* ERP short slottime */ 686 #define IEEE80211_DUR_OFDM_SLOT 9 /* OFDM slottime */ 687 688 /* 689 * DIFS (microseconds). 690 */ 691 #define IEEE80211_DUR_DIFS(sifs, slot) ((sifs) + 2 * (slot)) 692 693 #define IEEE80211_MGT_SUBTYPE_NAMES { \ 694 "assoc-req", "assoc-resp", \ 695 "reassoc-req", "reassoc-resp", \ 696 "probe-req", "probe-resp", \ 697 "reserved#6", "reserved#7", \ 698 "beacon", "atim", \ 699 "disassoc", "auth", \ 700 "deauth", "reserved#13", \ 701 "reserved#14", "reserved#15" \ 702 } 703 704 #define IEEE80211_CTL_SUBTYPE_NAMES { \ 705 "reserved#0", "reserved#1", \ 706 "reserved#2", "reserved#3", \ 707 "reserved#3", "reserved#5", \ 708 "reserved#6", "reserved#7", \ 709 "reserved#8", "reserved#9", \ 710 "ps-poll", "rts", \ 711 "cts", "ack", \ 712 "cf-end", "cf-end-ack" \ 713 } 714 715 #define IEEE80211_DATA_SUBTYPE_NAMES { \ 716 "data", "data-cf-ack", \ 717 "data-cf-poll", "data-cf-ack-poll", \ 718 "null", "cf-ack", \ 719 "cf-poll", "cf-ack-poll", \ 720 "qos-data", "qos-data-cf-ack", \ 721 "qos-data-cf-poll", "qos-data-cf-ack-poll", \ 722 "qos", "reserved#13", \ 723 "qos-cf-poll", "qos-cf-ack-poll" \ 724 } 725 726 #define IEEE80211_TYPE_NAMES { "mgt", "ctl", "data", "reserved#4" } 727 728 #endif /* _NET80211_IEEE80211_H_ */ 729