Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/net80211/ieee80211.h
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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: releng/6.0/sys/net80211/ieee80211.h 148549 2005-07-29 23:31:04Z sam $ 33 */ 34 #ifndef _NET80211_IEEE80211_H_ 35 #define _NET80211_IEEE80211_H_ 36 37 /* 38 * 802.11 protocol definitions. 39 */ 40 41 #define IEEE80211_ADDR_LEN 6 /* size of 802.11 address */ 42 /* is 802.11 address multicast/broadcast? */ 43 #define IEEE80211_IS_MULTICAST(_a) (*(_a) & 0x01) 44 45 /* IEEE 802.11 PLCP header */ 46 struct ieee80211_plcp_hdr { 47 u_int16_t i_sfd; 48 u_int8_t i_signal; 49 u_int8_t i_service; 50 u_int16_t i_length; 51 u_int16_t i_crc; 52 } __packed; 53 54 #define IEEE80211_PLCP_SFD 0xF3A0 55 #define IEEE80211_PLCP_SERVICE 0x00 56 57 /* 58 * generic definitions for IEEE 802.11 frames 59 */ 60 struct ieee80211_frame { 61 u_int8_t i_fc[2]; 62 u_int8_t i_dur[2]; 63 u_int8_t i_addr1[IEEE80211_ADDR_LEN]; 64 u_int8_t i_addr2[IEEE80211_ADDR_LEN]; 65 u_int8_t i_addr3[IEEE80211_ADDR_LEN]; 66 u_int8_t i_seq[2]; 67 /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */ 68 /* see below */ 69 } __packed; 70 71 struct ieee80211_qosframe { 72 u_int8_t i_fc[2]; 73 u_int8_t i_dur[2]; 74 u_int8_t i_addr1[IEEE80211_ADDR_LEN]; 75 u_int8_t i_addr2[IEEE80211_ADDR_LEN]; 76 u_int8_t i_addr3[IEEE80211_ADDR_LEN]; 77 u_int8_t i_seq[2]; 78 u_int8_t i_qos[2]; 79 /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */ 80 /* see below */ 81 } __packed; 82 83 struct ieee80211_qoscntl { 84 u_int8_t i_qos[2]; 85 }; 86 87 struct ieee80211_frame_addr4 { 88 u_int8_t i_fc[2]; 89 u_int8_t i_dur[2]; 90 u_int8_t i_addr1[IEEE80211_ADDR_LEN]; 91 u_int8_t i_addr2[IEEE80211_ADDR_LEN]; 92 u_int8_t i_addr3[IEEE80211_ADDR_LEN]; 93 u_int8_t i_seq[2]; 94 u_int8_t i_addr4[IEEE80211_ADDR_LEN]; 95 } __packed; 96 97 98 struct ieee80211_qosframe_addr4 { 99 u_int8_t i_fc[2]; 100 u_int8_t i_dur[2]; 101 u_int8_t i_addr1[IEEE80211_ADDR_LEN]; 102 u_int8_t i_addr2[IEEE80211_ADDR_LEN]; 103 u_int8_t i_addr3[IEEE80211_ADDR_LEN]; 104 u_int8_t i_seq[2]; 105 u_int8_t i_addr4[IEEE80211_ADDR_LEN]; 106 u_int8_t i_qos[2]; 107 } __packed; 108 109 #define IEEE80211_FC0_VERSION_MASK 0x03 110 #define IEEE80211_FC0_VERSION_SHIFT 0 111 #define IEEE80211_FC0_VERSION_0 0x00 112 #define IEEE80211_FC0_TYPE_MASK 0x0c 113 #define IEEE80211_FC0_TYPE_SHIFT 2 114 #define IEEE80211_FC0_TYPE_MGT 0x00 115 #define IEEE80211_FC0_TYPE_CTL 0x04 116 #define IEEE80211_FC0_TYPE_DATA 0x08 117 118 #define IEEE80211_FC0_SUBTYPE_MASK 0xf0 119 #define IEEE80211_FC0_SUBTYPE_SHIFT 4 120 /* for TYPE_MGT */ 121 #define IEEE80211_FC0_SUBTYPE_ASSOC_REQ 0x00 122 #define IEEE80211_FC0_SUBTYPE_ASSOC_RESP 0x10 123 #define IEEE80211_FC0_SUBTYPE_REASSOC_REQ 0x20 124 #define IEEE80211_FC0_SUBTYPE_REASSOC_RESP 0x30 125 #define IEEE80211_FC0_SUBTYPE_PROBE_REQ 0x40 126 #define IEEE80211_FC0_SUBTYPE_PROBE_RESP 0x50 127 #define IEEE80211_FC0_SUBTYPE_BEACON 0x80 128 #define IEEE80211_FC0_SUBTYPE_ATIM 0x90 129 #define IEEE80211_FC0_SUBTYPE_DISASSOC 0xa0 130 #define IEEE80211_FC0_SUBTYPE_AUTH 0xb0 131 #define IEEE80211_FC0_SUBTYPE_DEAUTH 0xc0 132 /* for TYPE_CTL */ 133 #define IEEE80211_FC0_SUBTYPE_PS_POLL 0xa0 134 #define IEEE80211_FC0_SUBTYPE_RTS 0xb0 135 #define IEEE80211_FC0_SUBTYPE_CTS 0xc0 136 #define IEEE80211_FC0_SUBTYPE_ACK 0xd0 137 #define IEEE80211_FC0_SUBTYPE_CF_END 0xe0 138 #define IEEE80211_FC0_SUBTYPE_CF_END_ACK 0xf0 139 /* for TYPE_DATA (bit combination) */ 140 #define IEEE80211_FC0_SUBTYPE_DATA 0x00 141 #define IEEE80211_FC0_SUBTYPE_CF_ACK 0x10 142 #define IEEE80211_FC0_SUBTYPE_CF_POLL 0x20 143 #define IEEE80211_FC0_SUBTYPE_CF_ACPL 0x30 144 #define IEEE80211_FC0_SUBTYPE_NODATA 0x40 145 #define IEEE80211_FC0_SUBTYPE_CFACK 0x50 146 #define IEEE80211_FC0_SUBTYPE_CFPOLL 0x60 147 #define IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK 0x70 148 #define IEEE80211_FC0_SUBTYPE_QOS 0x80 149 #define IEEE80211_FC0_SUBTYPE_QOS_NULL 0xc0 150 151 #define IEEE80211_FC1_DIR_MASK 0x03 152 #define IEEE80211_FC1_DIR_NODS 0x00 /* STA->STA */ 153 #define IEEE80211_FC1_DIR_TODS 0x01 /* STA->AP */ 154 #define IEEE80211_FC1_DIR_FROMDS 0x02 /* AP ->STA */ 155 #define IEEE80211_FC1_DIR_DSTODS 0x03 /* AP ->AP */ 156 157 #define IEEE80211_FC1_MORE_FRAG 0x04 158 #define IEEE80211_FC1_RETRY 0x08 159 #define IEEE80211_FC1_PWR_MGT 0x10 160 #define IEEE80211_FC1_MORE_DATA 0x20 161 #define IEEE80211_FC1_WEP 0x40 162 #define IEEE80211_FC1_ORDER 0x80 163 164 #define IEEE80211_SEQ_FRAG_MASK 0x000f 165 #define IEEE80211_SEQ_FRAG_SHIFT 0 166 #define IEEE80211_SEQ_SEQ_MASK 0xfff0 167 #define IEEE80211_SEQ_SEQ_SHIFT 4 168 169 #define IEEE80211_NWID_LEN 32 170 171 #define IEEE80211_QOS_TXOP 0x00ff 172 /* bit 8 is reserved */ 173 #define IEEE80211_QOS_ACKPOLICY 0x60 174 #define IEEE80211_QOS_ACKPOLICY_S 5 175 #define IEEE80211_QOS_ESOP 0x10 176 #define IEEE80211_QOS_ESOP_S 4 177 #define IEEE80211_QOS_TID 0x0f 178 179 /* does frame have QoS sequence control data */ 180 #define IEEE80211_QOS_HAS_SEQ(wh) \ 181 (((wh)->i_fc[0] & \ 182 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == \ 183 (IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS)) 184 185 /* 186 * WME/802.11e information element. 187 */ 188 struct ieee80211_wme_info { 189 u_int8_t wme_id; /* IEEE80211_ELEMID_VENDOR */ 190 u_int8_t wme_len; /* length in bytes */ 191 u_int8_t wme_oui[3]; /* 0x00, 0x50, 0xf2 */ 192 u_int8_t wme_type; /* OUI type */ 193 u_int8_t wme_subtype; /* OUI subtype */ 194 u_int8_t wme_version; /* spec revision */ 195 u_int8_t wme_info; /* QoS info */ 196 } __packed; 197 198 /* 199 * WME/802.11e Tspec Element 200 */ 201 struct ieee80211_wme_tspec { 202 u_int8_t ts_id; 203 u_int8_t ts_len; 204 u_int8_t ts_oui[3]; 205 u_int8_t ts_oui_type; 206 u_int8_t ts_oui_subtype; 207 u_int8_t ts_version; 208 u_int8_t ts_tsinfo[3]; 209 u_int8_t ts_nom_msdu[2]; 210 u_int8_t ts_max_msdu[2]; 211 u_int8_t ts_min_svc[4]; 212 u_int8_t ts_max_svc[4]; 213 u_int8_t ts_inactv_intv[4]; 214 u_int8_t ts_susp_intv[4]; 215 u_int8_t ts_start_svc[4]; 216 u_int8_t ts_min_rate[4]; 217 u_int8_t ts_mean_rate[4]; 218 u_int8_t ts_max_burst[4]; 219 u_int8_t ts_min_phy[4]; 220 u_int8_t ts_peak_rate[4]; 221 u_int8_t ts_delay[4]; 222 u_int8_t ts_surplus[2]; 223 u_int8_t ts_medium_time[2]; 224 } __packed; 225 226 /* 227 * WME AC parameter field 228 */ 229 struct ieee80211_wme_acparams { 230 u_int8_t acp_aci_aifsn; 231 u_int8_t acp_logcwminmax; 232 u_int16_t acp_txop; 233 } __packed; 234 235 #define WME_NUM_AC 4 /* 4 AC categories */ 236 237 #define WME_PARAM_ACI 0x60 /* Mask for ACI field */ 238 #define WME_PARAM_ACI_S 5 /* Shift for ACI field */ 239 #define WME_PARAM_ACM 0x10 /* Mask for ACM bit */ 240 #define WME_PARAM_ACM_S 4 /* Shift for ACM bit */ 241 #define WME_PARAM_AIFSN 0x0f /* Mask for aifsn field */ 242 #define WME_PARAM_AIFSN_S 0 /* Shift for aifsn field */ 243 #define WME_PARAM_LOGCWMIN 0x0f /* Mask for CwMin field (in log) */ 244 #define WME_PARAM_LOGCWMIN_S 0 /* Shift for CwMin field */ 245 #define WME_PARAM_LOGCWMAX 0xf0 /* Mask for CwMax field (in log) */ 246 #define WME_PARAM_LOGCWMAX_S 4 /* Shift for CwMax field */ 247 248 #define WME_AC_TO_TID(_ac) ( \ 249 ((_ac) == WME_AC_VO) ? 6 : \ 250 ((_ac) == WME_AC_VI) ? 5 : \ 251 ((_ac) == WME_AC_BK) ? 1 : \ 252 0) 253 254 #define TID_TO_WME_AC(_tid) ( \ 255 ((_tid) < 1) ? WME_AC_BE : \ 256 ((_tid) < 3) ? WME_AC_BK : \ 257 ((_tid) < 6) ? WME_AC_VI : \ 258 WME_AC_VO) 259 260 /* 261 * WME Parameter Element 262 */ 263 struct ieee80211_wme_param { 264 u_int8_t param_id; 265 u_int8_t param_len; 266 u_int8_t param_oui[3]; 267 u_int8_t param_oui_type; 268 u_int8_t param_oui_sybtype; 269 u_int8_t param_version; 270 u_int8_t param_qosInfo; 271 #define WME_QOSINFO_COUNT 0x0f /* Mask for param count field */ 272 u_int8_t param_reserved; 273 struct ieee80211_wme_acparams params_acParams[WME_NUM_AC]; 274 } __packed; 275 276 /* 277 * Management Notification Frame 278 */ 279 struct ieee80211_mnf { 280 u_int8_t mnf_category; 281 u_int8_t mnf_action; 282 u_int8_t mnf_dialog; 283 u_int8_t mnf_status; 284 } __packed; 285 #define MNF_SETUP_REQ 0 286 #define MNF_SETUP_RESP 1 287 #define MNF_TEARDOWN 2 288 289 /* 290 * Control frames. 291 */ 292 struct ieee80211_frame_min { 293 u_int8_t i_fc[2]; 294 u_int8_t i_dur[2]; 295 u_int8_t i_addr1[IEEE80211_ADDR_LEN]; 296 u_int8_t i_addr2[IEEE80211_ADDR_LEN]; 297 /* FCS */ 298 } __packed; 299 300 struct ieee80211_frame_rts { 301 u_int8_t i_fc[2]; 302 u_int8_t i_dur[2]; 303 u_int8_t i_ra[IEEE80211_ADDR_LEN]; 304 u_int8_t i_ta[IEEE80211_ADDR_LEN]; 305 /* FCS */ 306 } __packed; 307 308 struct ieee80211_frame_cts { 309 u_int8_t i_fc[2]; 310 u_int8_t i_dur[2]; 311 u_int8_t i_ra[IEEE80211_ADDR_LEN]; 312 /* FCS */ 313 } __packed; 314 315 struct ieee80211_frame_ack { 316 u_int8_t i_fc[2]; 317 u_int8_t i_dur[2]; 318 u_int8_t i_ra[IEEE80211_ADDR_LEN]; 319 /* FCS */ 320 } __packed; 321 322 struct ieee80211_frame_pspoll { 323 u_int8_t i_fc[2]; 324 u_int8_t i_aid[2]; 325 u_int8_t i_bssid[IEEE80211_ADDR_LEN]; 326 u_int8_t i_ta[IEEE80211_ADDR_LEN]; 327 /* FCS */ 328 } __packed; 329 330 struct ieee80211_frame_cfend { /* NB: also CF-End+CF-Ack */ 331 u_int8_t i_fc[2]; 332 u_int8_t i_dur[2]; /* should be zero */ 333 u_int8_t i_ra[IEEE80211_ADDR_LEN]; 334 u_int8_t i_bssid[IEEE80211_ADDR_LEN]; 335 /* FCS */ 336 } __packed; 337 338 /* 339 * BEACON management packets 340 * 341 * octet timestamp[8] 342 * octet beacon interval[2] 343 * octet capability information[2] 344 * information element 345 * octet elemid 346 * octet length 347 * octet information[length] 348 */ 349 350 typedef u_int8_t *ieee80211_mgt_beacon_t; 351 352 #define IEEE80211_BEACON_INTERVAL(beacon) \ 353 ((beacon)[8] | ((beacon)[9] << 8)) 354 #define IEEE80211_BEACON_CAPABILITY(beacon) \ 355 ((beacon)[10] | ((beacon)[11] << 8)) 356 357 #define IEEE80211_CAPINFO_ESS 0x0001 358 #define IEEE80211_CAPINFO_IBSS 0x0002 359 #define IEEE80211_CAPINFO_CF_POLLABLE 0x0004 360 #define IEEE80211_CAPINFO_CF_POLLREQ 0x0008 361 #define IEEE80211_CAPINFO_PRIVACY 0x0010 362 #define IEEE80211_CAPINFO_SHORT_PREAMBLE 0x0020 363 #define IEEE80211_CAPINFO_PBCC 0x0040 364 #define IEEE80211_CAPINFO_CHNL_AGILITY 0x0080 365 /* bits 8-9 are reserved */ 366 #define IEEE80211_CAPINFO_SHORT_SLOTTIME 0x0400 367 #define IEEE80211_CAPINFO_RSN 0x0800 368 /* bit 12 is reserved */ 369 #define IEEE80211_CAPINFO_DSSSOFDM 0x2000 370 /* bits 14-15 are reserved */ 371 372 /* 373 * 802.11i/WPA information element (maximally sized). 374 */ 375 struct ieee80211_ie_wpa { 376 u_int8_t wpa_id; /* IEEE80211_ELEMID_VENDOR */ 377 u_int8_t wpa_len; /* length in bytes */ 378 u_int8_t wpa_oui[3]; /* 0x00, 0x50, 0xf2 */ 379 u_int8_t wpa_type; /* OUI type */ 380 u_int16_t wpa_version; /* spec revision */ 381 u_int32_t wpa_mcipher[1]; /* multicast/group key cipher */ 382 u_int16_t wpa_uciphercnt; /* # pairwise key ciphers */ 383 u_int32_t wpa_uciphers[8];/* ciphers */ 384 u_int16_t wpa_authselcnt; /* authentication selector cnt*/ 385 u_int32_t wpa_authsels[8];/* selectors */ 386 u_int16_t wpa_caps; /* 802.11i capabilities */ 387 u_int16_t wpa_pmkidcnt; /* 802.11i pmkid count */ 388 u_int16_t wpa_pmkids[8]; /* 802.11i pmkids */ 389 } __packed; 390 391 /* 392 * Management information element payloads. 393 */ 394 395 enum { 396 IEEE80211_ELEMID_SSID = 0, 397 IEEE80211_ELEMID_RATES = 1, 398 IEEE80211_ELEMID_FHPARMS = 2, 399 IEEE80211_ELEMID_DSPARMS = 3, 400 IEEE80211_ELEMID_CFPARMS = 4, 401 IEEE80211_ELEMID_TIM = 5, 402 IEEE80211_ELEMID_IBSSPARMS = 6, 403 IEEE80211_ELEMID_COUNTRY = 7, 404 IEEE80211_ELEMID_CHALLENGE = 16, 405 /* 17-31 reserved for challenge text extension */ 406 IEEE80211_ELEMID_ERP = 42, 407 IEEE80211_ELEMID_RSN = 48, 408 IEEE80211_ELEMID_XRATES = 50, 409 IEEE80211_ELEMID_TPC = 150, 410 IEEE80211_ELEMID_CCKM = 156, 411 IEEE80211_ELEMID_VENDOR = 221, /* vendor private */ 412 }; 413 414 struct ieee80211_tim_ie { 415 u_int8_t tim_ie; /* IEEE80211_ELEMID_TIM */ 416 u_int8_t tim_len; 417 u_int8_t tim_count; /* DTIM count */ 418 u_int8_t tim_period; /* DTIM period */ 419 u_int8_t tim_bitctl; /* bitmap control */ 420 u_int8_t tim_bitmap[1]; /* variable-length bitmap */ 421 } __packed; 422 423 struct ieee80211_country_ie { 424 u_int8_t ie; /* IEEE80211_ELEMID_COUNTRY */ 425 u_int8_t len; 426 u_int8_t cc[3]; /* ISO CC+(I)ndoor/(O)utdoor */ 427 struct { 428 u_int8_t schan; /* starting channel */ 429 u_int8_t nchan; /* number channels */ 430 u_int8_t maxtxpwr; /* tx power cap */ 431 } band[4] __packed; /* up to 4 sub bands */ 432 } __packed; 433 434 #define IEEE80211_CHALLENGE_LEN 128 435 436 #define IEEE80211_RATE_BASIC 0x80 437 #define IEEE80211_RATE_VAL 0x7f 438 439 /* EPR information element flags */ 440 #define IEEE80211_ERP_NON_ERP_PRESENT 0x01 441 #define IEEE80211_ERP_USE_PROTECTION 0x02 442 #define IEEE80211_ERP_LONG_PREAMBLE 0x04 443 444 /* Atheros private advanced capabilities info */ 445 #define ATHEROS_CAP_TURBO_PRIME 0x01 446 #define ATHEROS_CAP_COMPRESSION 0x02 447 #define ATHEROS_CAP_FAST_FRAME 0x04 448 /* bits 3-6 reserved */ 449 #define ATHEROS_CAP_BOOST 0x80 450 451 #define ATH_OUI 0x7f0300 /* Atheros OUI */ 452 #define ATH_OUI_TYPE 0x01 453 #define ATH_OUI_VERSION 0x01 454 455 #define WPA_OUI 0xf25000 456 #define WPA_OUI_TYPE 0x01 457 #define WPA_VERSION 1 /* current supported version */ 458 459 #define WPA_CSE_NULL 0x00 460 #define WPA_CSE_WEP40 0x01 461 #define WPA_CSE_TKIP 0x02 462 #define WPA_CSE_CCMP 0x04 463 #define WPA_CSE_WEP104 0x05 464 465 #define WPA_ASE_NONE 0x00 466 #define WPA_ASE_8021X_UNSPEC 0x01 467 #define WPA_ASE_8021X_PSK 0x02 468 469 #define RSN_OUI 0xac0f00 470 #define RSN_VERSION 1 /* current supported version */ 471 472 #define RSN_CSE_NULL 0x00 473 #define RSN_CSE_WEP40 0x01 474 #define RSN_CSE_TKIP 0x02 475 #define RSN_CSE_WRAP 0x03 476 #define RSN_CSE_CCMP 0x04 477 #define RSN_CSE_WEP104 0x05 478 479 #define RSN_ASE_NONE 0x00 480 #define RSN_ASE_8021X_UNSPEC 0x01 481 #define RSN_ASE_8021X_PSK 0x02 482 483 #define RSN_CAP_PREAUTH 0x01 484 485 #define WME_OUI 0xf25000 486 #define WME_OUI_TYPE 0x02 487 #define WME_INFO_OUI_SUBTYPE 0x00 488 #define WME_PARAM_OUI_SUBTYPE 0x01 489 #define WME_VERSION 1 490 491 /* WME stream classes */ 492 #define WME_AC_BE 0 /* best effort */ 493 #define WME_AC_BK 1 /* background */ 494 #define WME_AC_VI 2 /* video */ 495 #define WME_AC_VO 3 /* voice */ 496 497 /* 498 * AUTH management packets 499 * 500 * octet algo[2] 501 * octet seq[2] 502 * octet status[2] 503 * octet chal.id 504 * octet chal.length 505 * octet chal.text[253] 506 */ 507 508 typedef u_int8_t *ieee80211_mgt_auth_t; 509 510 #define IEEE80211_AUTH_ALGORITHM(auth) \ 511 ((auth)[0] | ((auth)[1] << 8)) 512 #define IEEE80211_AUTH_TRANSACTION(auth) \ 513 ((auth)[2] | ((auth)[3] << 8)) 514 #define IEEE80211_AUTH_STATUS(auth) \ 515 ((auth)[4] | ((auth)[5] << 8)) 516 517 #define IEEE80211_AUTH_ALG_OPEN 0x0000 518 #define IEEE80211_AUTH_ALG_SHARED 0x0001 519 #define IEEE80211_AUTH_ALG_LEAP 0x0080 520 521 enum { 522 IEEE80211_AUTH_OPEN_REQUEST = 1, 523 IEEE80211_AUTH_OPEN_RESPONSE = 2, 524 }; 525 526 enum { 527 IEEE80211_AUTH_SHARED_REQUEST = 1, 528 IEEE80211_AUTH_SHARED_CHALLENGE = 2, 529 IEEE80211_AUTH_SHARED_RESPONSE = 3, 530 IEEE80211_AUTH_SHARED_PASS = 4, 531 }; 532 533 /* 534 * Reason codes 535 * 536 * Unlisted codes are reserved 537 */ 538 539 enum { 540 IEEE80211_REASON_UNSPECIFIED = 1, 541 IEEE80211_REASON_AUTH_EXPIRE = 2, 542 IEEE80211_REASON_AUTH_LEAVE = 3, 543 IEEE80211_REASON_ASSOC_EXPIRE = 4, 544 IEEE80211_REASON_ASSOC_TOOMANY = 5, 545 IEEE80211_REASON_NOT_AUTHED = 6, 546 IEEE80211_REASON_NOT_ASSOCED = 7, 547 IEEE80211_REASON_ASSOC_LEAVE = 8, 548 IEEE80211_REASON_ASSOC_NOT_AUTHED = 9, 549 550 IEEE80211_REASON_RSN_REQUIRED = 11, 551 IEEE80211_REASON_RSN_INCONSISTENT = 12, 552 IEEE80211_REASON_IE_INVALID = 13, 553 IEEE80211_REASON_MIC_FAILURE = 14, 554 555 IEEE80211_STATUS_SUCCESS = 0, 556 IEEE80211_STATUS_UNSPECIFIED = 1, 557 IEEE80211_STATUS_CAPINFO = 10, 558 IEEE80211_STATUS_NOT_ASSOCED = 11, 559 IEEE80211_STATUS_OTHER = 12, 560 IEEE80211_STATUS_ALG = 13, 561 IEEE80211_STATUS_SEQUENCE = 14, 562 IEEE80211_STATUS_CHALLENGE = 15, 563 IEEE80211_STATUS_TIMEOUT = 16, 564 IEEE80211_STATUS_TOOMANY = 17, 565 IEEE80211_STATUS_BASIC_RATE = 18, 566 IEEE80211_STATUS_SP_REQUIRED = 19, 567 IEEE80211_STATUS_PBCC_REQUIRED = 20, 568 IEEE80211_STATUS_CA_REQUIRED = 21, 569 IEEE80211_STATUS_TOO_MANY_STATIONS = 22, 570 IEEE80211_STATUS_RATES = 23, 571 IEEE80211_STATUS_SHORTSLOT_REQUIRED = 25, 572 IEEE80211_STATUS_DSSSOFDM_REQUIRED = 26, 573 }; 574 575 #define IEEE80211_WEP_KEYLEN 5 /* 40bit */ 576 #define IEEE80211_WEP_IVLEN 3 /* 24bit */ 577 #define IEEE80211_WEP_KIDLEN 1 /* 1 octet */ 578 #define IEEE80211_WEP_CRCLEN 4 /* CRC-32 */ 579 #define IEEE80211_WEP_NKID 4 /* number of key ids */ 580 581 /* 582 * 802.11i defines an extended IV for use with non-WEP ciphers. 583 * When the EXTIV bit is set in the key id byte an additional 584 * 4 bytes immediately follow the IV for TKIP. For CCMP the 585 * EXTIV bit is likewise set but the 8 bytes represent the 586 * CCMP header rather than IV+extended-IV. 587 */ 588 #define IEEE80211_WEP_EXTIV 0x20 589 #define IEEE80211_WEP_EXTIVLEN 4 /* extended IV length */ 590 #define IEEE80211_WEP_MICLEN 8 /* trailing MIC */ 591 592 #define IEEE80211_CRC_LEN 4 593 594 /* 595 * Maximum acceptable MTU is: 596 * IEEE80211_MAX_LEN - WEP overhead - CRC - 597 * QoS overhead - RSN/WPA overhead 598 * Min is arbitrarily chosen > IEEE80211_MIN_LEN. The default 599 * mtu is Ethernet-compatible; it's set by ether_ifattach. 600 */ 601 #define IEEE80211_MTU_MAX 2290 602 #define IEEE80211_MTU_MIN 32 603 604 #define IEEE80211_MAX_LEN (2300 + IEEE80211_CRC_LEN + \ 605 (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN)) 606 #define IEEE80211_ACK_LEN \ 607 (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN) 608 #define IEEE80211_MIN_LEN \ 609 (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN) 610 611 /* 612 * The 802.11 spec says at most 2007 stations may be 613 * associated at once. For most AP's this is way more 614 * than is feasible so we use a default of 128. This 615 * number may be overridden by the driver and/or by 616 * user configuration. 617 */ 618 #define IEEE80211_AID_MAX 2007 619 #define IEEE80211_AID_DEF 128 620 621 #define IEEE80211_AID(b) ((b) &~ 0xc000) 622 623 /* 624 * RTS frame length parameters. The default is specified in 625 * the 802.11 spec as 512; we treat it as implementation-dependent 626 * so it's defined in ieee80211_var.h. The max may be wrong 627 * for jumbo frames. 628 */ 629 #define IEEE80211_RTS_MIN 1 630 #define IEEE80211_RTS_MAX 2346 631 632 /* 633 * TX fragmentation parameters. As above for RTS, we treat 634 * default as implementation-dependent so define it elsewhere. 635 */ 636 #define IEEE80211_FRAG_MIN 256 637 #define IEEE80211_FRAG_MAX 2346 638 639 #endif /* _NET80211_IEEE80211_H_ */
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