ieee80211.h revision 1.17
1 /* $NetBSD: ieee80211.h,v 1.17 2006/03/28 00:13:56 dyoung 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 #define IEEE80211_FC1_DIR_MASK 0x03 153 #define IEEE80211_FC1_DIR_NODS 0x00 /* STA->STA */ 154 #define IEEE80211_FC1_DIR_TODS 0x01 /* STA->AP */ 155 #define IEEE80211_FC1_DIR_FROMDS 0x02 /* AP ->STA */ 156 #define IEEE80211_FC1_DIR_DSTODS 0x03 /* AP ->AP */ 157 158 #define IEEE80211_FC1_MORE_FRAG 0x04 159 #define IEEE80211_FC1_RETRY 0x08 160 #define IEEE80211_FC1_PWR_MGT 0x10 161 #define IEEE80211_FC1_MORE_DATA 0x20 162 #define IEEE80211_FC1_WEP 0x40 163 #define IEEE80211_FC1_ORDER 0x80 164 165 #define IEEE80211_SEQ_FRAG_MASK 0x000f 166 #define IEEE80211_SEQ_FRAG_SHIFT 0 167 #define IEEE80211_SEQ_SEQ_MASK 0xfff0 168 #define IEEE80211_SEQ_SEQ_SHIFT 4 169 170 #define IEEE80211_NWID_LEN 32 171 172 #define IEEE80211_QOS_TXOP 0x00ff 173 /* bit 8 is reserved */ 174 #define IEEE80211_QOS_ACKPOLICY 0x60 175 #define IEEE80211_QOS_ACKPOLICY_S 5 176 #define IEEE80211_QOS_ESOP 0x10 177 #define IEEE80211_QOS_ESOP_S 4 178 #define IEEE80211_QOS_TID 0x0f 179 180 /* does frame have QoS sequence control data */ 181 #define IEEE80211_QOS_HAS_SEQ(wh) \ 182 (((wh)->i_fc[0] & \ 183 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == \ 184 (IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS)) 185 186 /* 187 * WME/802.11e information element. 188 */ 189 struct ieee80211_wme_info { 190 u_int8_t wme_id; /* IEEE80211_ELEMID_VENDOR */ 191 u_int8_t wme_len; /* length in bytes */ 192 u_int8_t wme_oui[3]; /* 0x00, 0x50, 0xf2 */ 193 u_int8_t wme_type; /* OUI type */ 194 u_int8_t wme_subtype; /* OUI subtype */ 195 u_int8_t wme_version; /* spec revision */ 196 u_int8_t wme_info; /* QoS info */ 197 } __packed; 198 199 /* 200 * WME/802.11e Tspec Element 201 */ 202 struct ieee80211_wme_tspec { 203 u_int8_t ts_id; 204 u_int8_t ts_len; 205 u_int8_t ts_oui[3]; 206 u_int8_t ts_oui_type; 207 u_int8_t ts_oui_subtype; 208 u_int8_t ts_version; 209 u_int8_t ts_tsinfo[3]; 210 u_int8_t ts_nom_msdu[2]; 211 u_int8_t ts_max_msdu[2]; 212 u_int8_t ts_min_svc[4]; 213 u_int8_t ts_max_svc[4]; 214 u_int8_t ts_inactv_intv[4]; 215 u_int8_t ts_susp_intv[4]; 216 u_int8_t ts_start_svc[4]; 217 u_int8_t ts_min_rate[4]; 218 u_int8_t ts_mean_rate[4]; 219 u_int8_t ts_max_burst[4]; 220 u_int8_t ts_min_phy[4]; 221 u_int8_t ts_peak_rate[4]; 222 u_int8_t ts_delay[4]; 223 u_int8_t ts_surplus[2]; 224 u_int8_t ts_medium_time[2]; 225 } __packed; 226 227 /* 228 * WME AC parameter field 229 */ 230 struct ieee80211_wme_acparams { 231 u_int8_t acp_aci_aifsn; 232 u_int8_t acp_logcwminmax; 233 u_int16_t acp_txop; 234 } __packed; 235 236 #define WME_NUM_AC 4 /* 4 AC categories */ 237 238 #define WME_PARAM_ACI 0x60 /* Mask for ACI field */ 239 #define WME_PARAM_ACI_S 5 /* Shift for ACI field */ 240 #define WME_PARAM_ACM 0x10 /* Mask for ACM bit */ 241 #define WME_PARAM_ACM_S 4 /* Shift for ACM bit */ 242 #define WME_PARAM_AIFSN 0x0f /* Mask for aifsn field */ 243 #define WME_PARAM_AIFSN_S 0 /* Shift for aifsn field */ 244 #define WME_PARAM_LOGCWMIN 0x0f /* Mask for CwMin field (in log) */ 245 #define WME_PARAM_LOGCWMIN_S 0 /* Shift for CwMin field */ 246 #define WME_PARAM_LOGCWMAX 0xf0 /* Mask for CwMax field (in log) */ 247 #define WME_PARAM_LOGCWMAX_S 4 /* Shift for CwMax field */ 248 249 #define WME_AC_TO_TID(_ac) ( \ 250 ((_ac) == WME_AC_VO) ? 6 : \ 251 ((_ac) == WME_AC_VI) ? 5 : \ 252 ((_ac) == WME_AC_BK) ? 1 : \ 253 0) 254 255 #define TID_TO_WME_AC(_tid) ( \ 256 ((_tid) < 1) ? WME_AC_BE : \ 257 ((_tid) < 3) ? WME_AC_BK : \ 258 ((_tid) < 6) ? WME_AC_VI : \ 259 WME_AC_VO) 260 261 /* 262 * WME Parameter Element 263 */ 264 struct ieee80211_wme_param { 265 u_int8_t param_id; 266 u_int8_t param_len; 267 u_int8_t param_oui[3]; 268 u_int8_t param_oui_type; 269 u_int8_t param_oui_sybtype; 270 u_int8_t param_version; 271 u_int8_t param_qosInfo; 272 #define WME_QOSINFO_COUNT 0x0f /* Mask for param count field */ 273 u_int8_t param_reserved; 274 struct ieee80211_wme_acparams params_acParams[WME_NUM_AC]; 275 } __packed; 276 277 /* 278 * Management Notification Frame 279 */ 280 struct ieee80211_mnf { 281 u_int8_t mnf_category; 282 u_int8_t mnf_action; 283 u_int8_t mnf_dialog; 284 u_int8_t mnf_status; 285 } __packed; 286 #define MNF_SETUP_REQ 0 287 #define MNF_SETUP_RESP 1 288 #define MNF_TEARDOWN 2 289 290 /* 291 * Control frames. 292 */ 293 struct ieee80211_frame_min { 294 u_int8_t i_fc[2]; 295 u_int8_t i_dur[2]; 296 u_int8_t i_addr1[IEEE80211_ADDR_LEN]; 297 u_int8_t i_addr2[IEEE80211_ADDR_LEN]; 298 /* FCS */ 299 } __packed; 300 301 struct ieee80211_frame_rts { 302 u_int8_t i_fc[2]; 303 u_int8_t i_dur[2]; 304 u_int8_t i_ra[IEEE80211_ADDR_LEN]; 305 u_int8_t i_ta[IEEE80211_ADDR_LEN]; 306 /* FCS */ 307 } __packed; 308 309 struct ieee80211_frame_cts { 310 u_int8_t i_fc[2]; 311 u_int8_t i_dur[2]; 312 u_int8_t i_ra[IEEE80211_ADDR_LEN]; 313 /* FCS */ 314 } __packed; 315 316 struct ieee80211_frame_ack { 317 u_int8_t i_fc[2]; 318 u_int8_t i_dur[2]; 319 u_int8_t i_ra[IEEE80211_ADDR_LEN]; 320 /* FCS */ 321 } __packed; 322 323 struct ieee80211_frame_pspoll { 324 u_int8_t i_fc[2]; 325 u_int8_t i_aid[2]; 326 u_int8_t i_bssid[IEEE80211_ADDR_LEN]; 327 u_int8_t i_ta[IEEE80211_ADDR_LEN]; 328 /* FCS */ 329 } __packed; 330 331 struct ieee80211_frame_cfend { /* NB: also CF-End+CF-Ack */ 332 u_int8_t i_fc[2]; 333 u_int8_t i_dur[2]; /* should be zero */ 334 u_int8_t i_ra[IEEE80211_ADDR_LEN]; 335 u_int8_t i_bssid[IEEE80211_ADDR_LEN]; 336 /* FCS */ 337 } __packed; 338 339 /* 340 * BEACON management packets 341 * 342 * octet timestamp[8] 343 * octet beacon interval[2] 344 * octet capability information[2] 345 * information element 346 * octet elemid 347 * octet length 348 * octet information[length] 349 */ 350 351 typedef u_int8_t *ieee80211_mgt_beacon_t; 352 353 #define IEEE80211_BEACON_INTERVAL(beacon) \ 354 ((beacon)[8] | ((beacon)[9] << 8)) 355 #define IEEE80211_BEACON_CAPABILITY(beacon) \ 356 ((beacon)[10] | ((beacon)[11] << 8)) 357 358 #define IEEE80211_CAPINFO_ESS 0x0001 359 #define IEEE80211_CAPINFO_IBSS 0x0002 360 #define IEEE80211_CAPINFO_CF_POLLABLE 0x0004 361 #define IEEE80211_CAPINFO_CF_POLLREQ 0x0008 362 #define IEEE80211_CAPINFO_PRIVACY 0x0010 363 #define IEEE80211_CAPINFO_SHORT_PREAMBLE 0x0020 364 #define IEEE80211_CAPINFO_PBCC 0x0040 365 #define IEEE80211_CAPINFO_CHNL_AGILITY 0x0080 366 /* bits 8-9 are reserved */ 367 #define IEEE80211_CAPINFO_SHORT_SLOTTIME 0x0400 368 #define IEEE80211_CAPINFO_RSN 0x0800 369 /* bit 12 is reserved */ 370 #define IEEE80211_CAPINFO_DSSSOFDM 0x2000 371 /* bits 14-15 are reserved */ 372 373 /* 374 * 802.11i/WPA information element (maximally sized). 375 */ 376 struct ieee80211_ie_wpa { 377 u_int8_t wpa_id; /* IEEE80211_ELEMID_VENDOR */ 378 u_int8_t wpa_len; /* length in bytes */ 379 u_int8_t wpa_oui[3]; /* 0x00, 0x50, 0xf2 */ 380 u_int8_t wpa_type; /* OUI type */ 381 u_int16_t wpa_version; /* spec revision */ 382 u_int32_t wpa_mcipher[1]; /* multicast/group key cipher */ 383 u_int16_t wpa_uciphercnt; /* # pairwise key ciphers */ 384 u_int32_t wpa_uciphers[8];/* ciphers */ 385 u_int16_t wpa_authselcnt; /* authentication selector cnt*/ 386 u_int32_t wpa_authsels[8];/* selectors */ 387 u_int16_t wpa_caps; /* 802.11i capabilities */ 388 u_int16_t wpa_pmkidcnt; /* 802.11i pmkid count */ 389 u_int16_t wpa_pmkids[8]; /* 802.11i pmkids */ 390 } __packed; 391 392 /* 393 * Management information element payloads. 394 */ 395 396 enum { 397 IEEE80211_ELEMID_SSID = 0, 398 IEEE80211_ELEMID_RATES = 1, 399 IEEE80211_ELEMID_FHPARMS = 2, 400 IEEE80211_ELEMID_DSPARMS = 3, 401 IEEE80211_ELEMID_CFPARMS = 4, 402 IEEE80211_ELEMID_TIM = 5, 403 IEEE80211_ELEMID_IBSSPARMS = 6, 404 IEEE80211_ELEMID_COUNTRY = 7, 405 IEEE80211_ELEMID_CHALLENGE = 16, 406 /* 17-31 reserved for challenge text extension */ 407 IEEE80211_ELEMID_ERP = 42, 408 IEEE80211_ELEMID_RSN = 48, 409 IEEE80211_ELEMID_XRATES = 50, 410 IEEE80211_ELEMID_TPC = 150, 411 IEEE80211_ELEMID_CCKM = 156, 412 IEEE80211_ELEMID_VENDOR = 221, /* vendor private */ 413 }; 414 415 struct ieee80211_tim_ie { 416 u_int8_t tim_ie; /* IEEE80211_ELEMID_TIM */ 417 u_int8_t tim_len; 418 u_int8_t tim_count; /* DTIM count */ 419 u_int8_t tim_period; /* DTIM period */ 420 u_int8_t tim_bitctl; /* bitmap control */ 421 u_int8_t tim_bitmap[1]; /* variable-length bitmap */ 422 } __packed; 423 424 struct ieee80211_band { 425 u_int8_t schan; /* starting channel */ 426 u_int8_t nchan; /* number channels */ 427 u_int8_t maxtxpwr; /* tx power cap */ 428 } __packed; 429 430 struct ieee80211_country_ie { 431 u_int8_t ie; /* IEEE80211_ELEMID_COUNTRY */ 432 u_int8_t len; 433 u_int8_t cc[3]; /* ISO CC+(I)ndoor/(O)utdoor */ 434 struct ieee80211_band 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 441 442 /* EPR information element flags */ 443 #define IEEE80211_ERP_NON_ERP_PRESENT 0x01 444 #define IEEE80211_ERP_USE_PROTECTION 0x02 445 #define IEEE80211_ERP_LONG_PREAMBLE 0x04 446 447 /* Atheros private advanced capabilities info */ 448 #define ATHEROS_CAP_TURBO_PRIME 0x01 449 #define ATHEROS_CAP_COMPRESSION 0x02 450 #define ATHEROS_CAP_FAST_FRAME 0x04 451 /* bits 3-6 reserved */ 452 #define ATHEROS_CAP_BOOST 0x80 453 454 #define ATH_OUI 0x7f0300 /* Atheros OUI */ 455 #define ATH_OUI_TYPE 0x01 456 #define ATH_OUI_VERSION 0x01 457 458 #define WPA_OUI 0xf25000 459 #define WPA_OUI_TYPE 0x01 460 #define WPA_VERSION 1 /* current supported version */ 461 462 #define WPA_CSE_NULL 0x00 463 #define WPA_CSE_WEP40 0x01 464 #define WPA_CSE_TKIP 0x02 465 #define WPA_CSE_CCMP 0x04 466 #define WPA_CSE_WEP104 0x05 467 468 #define WPA_ASE_NONE 0x00 469 #define WPA_ASE_8021X_UNSPEC 0x01 470 #define WPA_ASE_8021X_PSK 0x02 471 472 #define RSN_OUI 0xac0f00 473 #define RSN_VERSION 1 /* current supported version */ 474 475 #define RSN_CSE_NULL 0x00 476 #define RSN_CSE_WEP40 0x01 477 #define RSN_CSE_TKIP 0x02 478 #define RSN_CSE_WRAP 0x03 479 #define RSN_CSE_CCMP 0x04 480 #define RSN_CSE_WEP104 0x05 481 482 #define RSN_ASE_NONE 0x00 483 #define RSN_ASE_8021X_UNSPEC 0x01 484 #define RSN_ASE_8021X_PSK 0x02 485 486 #define RSN_CAP_PREAUTH 0x01 487 488 #define WME_OUI 0xf25000 489 #define WME_OUI_TYPE 0x02 490 #define WME_INFO_OUI_SUBTYPE 0x00 491 #define WME_PARAM_OUI_SUBTYPE 0x01 492 #define WME_VERSION 1 493 494 /* WME stream classes */ 495 #define WME_AC_BE 0 /* best effort */ 496 #define WME_AC_BK 1 /* background */ 497 #define WME_AC_VI 2 /* video */ 498 #define WME_AC_VO 3 /* voice */ 499 500 /* 501 * AUTH management packets 502 * 503 * octet algo[2] 504 * octet seq[2] 505 * octet status[2] 506 * octet chal.id 507 * octet chal.length 508 * octet chal.text[253] 509 */ 510 511 typedef u_int8_t *ieee80211_mgt_auth_t; 512 513 #define IEEE80211_AUTH_ALGORITHM(auth) \ 514 ((auth)[0] | ((auth)[1] << 8)) 515 #define IEEE80211_AUTH_TRANSACTION(auth) \ 516 ((auth)[2] | ((auth)[3] << 8)) 517 #define IEEE80211_AUTH_STATUS(auth) \ 518 ((auth)[4] | ((auth)[5] << 8)) 519 520 #define IEEE80211_AUTH_ALG_OPEN 0x0000 521 #define IEEE80211_AUTH_ALG_SHARED 0x0001 522 #define IEEE80211_AUTH_ALG_LEAP 0x0080 523 524 enum { 525 IEEE80211_AUTH_OPEN_REQUEST = 1, 526 IEEE80211_AUTH_OPEN_RESPONSE = 2, 527 }; 528 529 enum { 530 IEEE80211_AUTH_SHARED_REQUEST = 1, 531 IEEE80211_AUTH_SHARED_CHALLENGE = 2, 532 IEEE80211_AUTH_SHARED_RESPONSE = 3, 533 IEEE80211_AUTH_SHARED_PASS = 4, 534 }; 535 536 /* 537 * Reason codes 538 * 539 * Unlisted codes are reserved 540 */ 541 542 enum { 543 IEEE80211_REASON_UNSPECIFIED = 1, 544 IEEE80211_REASON_AUTH_EXPIRE = 2, 545 IEEE80211_REASON_AUTH_LEAVE = 3, 546 IEEE80211_REASON_ASSOC_EXPIRE = 4, 547 IEEE80211_REASON_ASSOC_TOOMANY = 5, 548 IEEE80211_REASON_NOT_AUTHED = 6, 549 IEEE80211_REASON_NOT_ASSOCED = 7, 550 IEEE80211_REASON_ASSOC_LEAVE = 8, 551 IEEE80211_REASON_ASSOC_NOT_AUTHED = 9, 552 553 IEEE80211_REASON_RSN_REQUIRED = 11, 554 IEEE80211_REASON_RSN_INCONSISTENT = 12, 555 IEEE80211_REASON_IE_INVALID = 13, 556 IEEE80211_REASON_MIC_FAILURE = 14, 557 558 IEEE80211_STATUS_SUCCESS = 0, 559 IEEE80211_STATUS_UNSPECIFIED = 1, 560 IEEE80211_STATUS_CAPINFO = 10, 561 IEEE80211_STATUS_NOT_ASSOCED = 11, 562 IEEE80211_STATUS_OTHER = 12, 563 IEEE80211_STATUS_ALG = 13, 564 IEEE80211_STATUS_SEQUENCE = 14, 565 IEEE80211_STATUS_CHALLENGE = 15, 566 IEEE80211_STATUS_TIMEOUT = 16, 567 IEEE80211_STATUS_TOOMANY = 17, 568 IEEE80211_STATUS_BASIC_RATE = 18, 569 IEEE80211_STATUS_SP_REQUIRED = 19, 570 IEEE80211_STATUS_PBCC_REQUIRED = 20, 571 IEEE80211_STATUS_CA_REQUIRED = 21, 572 IEEE80211_STATUS_TOO_MANY_STATIONS = 22, 573 IEEE80211_STATUS_RATES = 23, 574 IEEE80211_STATUS_SHORTSLOT_REQUIRED = 25, 575 IEEE80211_STATUS_DSSSOFDM_REQUIRED = 26, 576 }; 577 578 #define IEEE80211_WEP_KEYLEN 5 /* 40bit */ 579 #define IEEE80211_WEP_IVLEN 3 /* 24bit */ 580 #define IEEE80211_WEP_KIDLEN 1 /* 1 octet */ 581 #define IEEE80211_WEP_CRCLEN 4 /* CRC-32 */ 582 #define IEEE80211_WEP_TOTLEN (IEEE80211_WEP_IVLEN + \ 583 IEEE80211_WEP_KIDLEN + \ 584 IEEE80211_WEP_CRCLEN) 585 #define IEEE80211_WEP_NKID 4 /* number of key ids */ 586 587 /* 588 * 802.11i defines an extended IV for use with non-WEP ciphers. 589 * When the EXTIV bit is set in the key id byte an additional 590 * 4 bytes immediately follow the IV for TKIP. For CCMP the 591 * EXTIV bit is likewise set but the 8 bytes represent the 592 * CCMP header rather than IV+extended-IV. 593 */ 594 #define IEEE80211_WEP_EXTIV 0x20 595 #define IEEE80211_WEP_EXTIVLEN 4 /* extended IV length */ 596 #define IEEE80211_WEP_MICLEN 8 /* trailing MIC */ 597 598 #define IEEE80211_CRC_LEN 4 599 600 /* 601 * Maximum acceptable MTU is: 602 * IEEE80211_MAX_LEN - WEP overhead - CRC - 603 * QoS overhead - RSN/WPA overhead 604 * Min is arbitrarily chosen > IEEE80211_MIN_LEN. The default 605 * mtu is Ethernet-compatible; it's set by ether_ifattach. 606 */ 607 #define IEEE80211_MTU_MAX 2290 608 #define IEEE80211_MTU_MIN 32 609 610 #define IEEE80211_MAX_LEN (2300 + IEEE80211_CRC_LEN + \ 611 (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN)) 612 #define IEEE80211_ACK_LEN \ 613 (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN) 614 #define IEEE80211_MIN_LEN \ 615 (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN) 616 617 /* 618 * The 802.11 spec says at most 2007 stations may be 619 * associated at once. For most AP's this is way more 620 * than is feasible so we use a default of 128. This 621 * number may be overridden by the driver and/or by 622 * user configuration. 623 */ 624 #define IEEE80211_AID_MAX 2007 625 #define IEEE80211_AID_DEF 128 626 627 #define IEEE80211_AID(b) ((b) &~ 0xc000) 628 629 /* 630 * RTS frame length parameters. The default is specified in 631 * the 802.11 spec as 512; we treat it as implementation-dependent 632 * so it's defined in ieee80211_var.h. The max may be wrong 633 * for jumbo frames. 634 */ 635 #define IEEE80211_RTS_MIN 1 636 #define IEEE80211_RTS_MAX 2346 637 638 /* 639 * TX fragmentation parameters. As above for RTS, we treat 640 * default as implementation-dependent so define it elsewhere. 641 */ 642 #define IEEE80211_FRAG_MIN 256 643 #define IEEE80211_FRAG_MAX 2346 644 645 /* 646 * 802.11 frame duration definitions. 647 */ 648 649 struct ieee80211_duration { 650 uint16_t d_rts_dur; 651 uint16_t d_data_dur; 652 uint16_t d_plcp_len; 653 uint8_t d_residue; /* unused octets in time slot */ 654 }; 655 656 /* One Time Unit (TU) is 1Kus = 1024 microseconds. */ 657 #define IEEE80211_DUR_TU 1024 658 659 /* IEEE 802.11b durations for DSSS PHY in microseconds */ 660 #define IEEE80211_DUR_DS_LONG_PREAMBLE 144 661 #define IEEE80211_DUR_DS_SHORT_PREAMBLE 72 662 663 #define IEEE80211_DUR_DS_SLOW_PLCPHDR 48 664 #define IEEE80211_DUR_DS_FAST_PLCPHDR 24 665 #define IEEE80211_DUR_DS_SLOW_ACK 112 666 #define IEEE80211_DUR_DS_FAST_ACK 56 667 #define IEEE80211_DUR_DS_SLOW_CTS 112 668 #define IEEE80211_DUR_DS_FAST_CTS 56 669 670 #define IEEE80211_DUR_DS_SLOT 20 671 #define IEEE80211_DUR_DS_SIFS 10 672 #define IEEE80211_DUR_DS_PIFS (IEEE80211_DUR_DS_SIFS + IEEE80211_DUR_DS_SLOT) 673 #define IEEE80211_DUR_DS_DIFS (IEEE80211_DUR_DS_SIFS + \ 674 2 * IEEE80211_DUR_DS_SLOT) 675 #define IEEE80211_DUR_DS_EIFS (IEEE80211_DUR_DS_SIFS + \ 676 IEEE80211_DUR_DS_SLOW_ACK + \ 677 IEEE80211_DUR_DS_LONG_PREAMBLE + \ 678 IEEE80211_DUR_DS_SLOW_PLCPHDR + \ 679 IEEE80211_DUR_DIFS) 680 681 682 #endif /* !_NET80211_IEEE80211_H_ */ 683
Indexes created Thu Sep 25 16:09:42 GMT 2025