ieee80211.h revision 1.18.4.1
1 /* $NetBSD: ieee80211.h,v 1.18.4.1 2008/02/22 16:50:25 skrll Exp $ */ 2 /*- 3 * Copyright (c) 2001 Atsushi Onoe 4 * Copyright (c) 2002-2007 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 * $FreeBSD: src/sys/net80211/ieee80211.h,v 1.18 2007/11/23 06:12:46 sam Exp $ 28 */ 29 #ifndef _NET80211_IEEE80211_H_ 30 #define _NET80211_IEEE80211_H_ 31 32 /* 33 * 802.11 protocol definitions. 34 */ 35 36 #define IEEE80211_ADDR_LEN 6 /* size of 802.11 address */ 37 /* is 802.11 address multicast/broadcast? */ 38 #define IEEE80211_IS_MULTICAST(_a) (*(_a) & 0x01) 39 40 /* IEEE 802.11 PLCP header */ 41 struct ieee80211_plcp_hdr { 42 uint16_t i_sfd; 43 uint8_t i_signal; 44 uint8_t i_service; 45 uint16_t i_length; 46 uint16_t i_crc; 47 } __packed; 48 49 #define IEEE80211_PLCP_SFD 0xF3A0 50 #define IEEE80211_PLCP_SERVICE 0x00 51 52 /* 53 * generic definitions for IEEE 802.11 frames 54 */ 55 struct ieee80211_frame { 56 uint8_t i_fc[2]; 57 uint8_t i_dur[2]; 58 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 59 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 60 uint8_t i_addr3[IEEE80211_ADDR_LEN]; 61 uint8_t i_seq[2]; 62 /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */ 63 /* see below */ 64 } __packed; 65 66 struct ieee80211_qosframe { 67 uint8_t i_fc[2]; 68 uint8_t i_dur[2]; 69 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 70 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 71 uint8_t i_addr3[IEEE80211_ADDR_LEN]; 72 uint8_t i_seq[2]; 73 uint8_t i_qos[2]; 74 /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */ 75 /* see below */ 76 } __packed; 77 78 struct ieee80211_qoscntl { 79 uint8_t i_qos[2]; 80 }; 81 82 struct ieee80211_frame_addr4 { 83 uint8_t i_fc[2]; 84 uint8_t i_dur[2]; 85 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 86 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 87 uint8_t i_addr3[IEEE80211_ADDR_LEN]; 88 uint8_t i_seq[2]; 89 uint8_t i_addr4[IEEE80211_ADDR_LEN]; 90 } __packed; 91 92 93 struct ieee80211_qosframe_addr4 { 94 uint8_t i_fc[2]; 95 uint8_t i_dur[2]; 96 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 97 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 98 uint8_t i_addr3[IEEE80211_ADDR_LEN]; 99 uint8_t i_seq[2]; 100 uint8_t i_addr4[IEEE80211_ADDR_LEN]; 101 uint8_t i_qos[2]; 102 } __packed; 103 104 #define IEEE80211_FC0_VERSION_MASK 0x03 105 #define IEEE80211_FC0_VERSION_SHIFT 0 106 #define IEEE80211_FC0_VERSION_0 0x00 107 #define IEEE80211_FC0_TYPE_MASK 0x0c 108 #define IEEE80211_FC0_TYPE_SHIFT 2 109 #define IEEE80211_FC0_TYPE_MGT 0x00 110 #define IEEE80211_FC0_TYPE_CTL 0x04 111 #define IEEE80211_FC0_TYPE_DATA 0x08 112 113 #define IEEE80211_FC0_SUBTYPE_MASK 0xf0 114 #define IEEE80211_FC0_SUBTYPE_SHIFT 4 115 /* for TYPE_MGT */ 116 #define IEEE80211_FC0_SUBTYPE_ASSOC_REQ 0x00 117 #define IEEE80211_FC0_SUBTYPE_ASSOC_RESP 0x10 118 #define IEEE80211_FC0_SUBTYPE_REASSOC_REQ 0x20 119 #define IEEE80211_FC0_SUBTYPE_REASSOC_RESP 0x30 120 #define IEEE80211_FC0_SUBTYPE_PROBE_REQ 0x40 121 #define IEEE80211_FC0_SUBTYPE_PROBE_RESP 0x50 122 #define IEEE80211_FC0_SUBTYPE_BEACON 0x80 123 #define IEEE80211_FC0_SUBTYPE_ATIM 0x90 124 #define IEEE80211_FC0_SUBTYPE_DISASSOC 0xa0 125 #define IEEE80211_FC0_SUBTYPE_AUTH 0xb0 126 #define IEEE80211_FC0_SUBTYPE_DEAUTH 0xc0 127 #define IEEE80211_FC0_SUBTYPE_ACTION 0xd0 128 /* for TYPE_CTL */ 129 #define IEEE80211_FC0_SUBTYPE_BAR 0x80 130 #define IEEE80211_FC0_SUBTYPE_PS_POLL 0xa0 131 #define IEEE80211_FC0_SUBTYPE_RTS 0xb0 132 #define IEEE80211_FC0_SUBTYPE_CTS 0xc0 133 #define IEEE80211_FC0_SUBTYPE_ACK 0xd0 134 #define IEEE80211_FC0_SUBTYPE_CF_END 0xe0 135 #define IEEE80211_FC0_SUBTYPE_CF_END_ACK 0xf0 136 /* for TYPE_DATA (bit combination) */ 137 #define IEEE80211_FC0_SUBTYPE_DATA 0x00 138 #define IEEE80211_FC0_SUBTYPE_CF_ACK 0x10 139 #define IEEE80211_FC0_SUBTYPE_CF_POLL 0x20 140 #define IEEE80211_FC0_SUBTYPE_CF_ACPL 0x30 141 #define IEEE80211_FC0_SUBTYPE_NODATA 0x40 142 #define IEEE80211_FC0_SUBTYPE_CFACK 0x50 143 #define IEEE80211_FC0_SUBTYPE_CFPOLL 0x60 144 #define IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK 0x70 145 #define IEEE80211_FC0_SUBTYPE_QOS 0x80 146 #define IEEE80211_FC0_SUBTYPE_QOS_NULL 0xc0 147 148 #define IEEE80211_FC1_DIR_MASK 0x03 149 #define IEEE80211_FC1_DIR_NODS 0x00 /* STA->STA */ 150 #define IEEE80211_FC1_DIR_TODS 0x01 /* STA->AP */ 151 #define IEEE80211_FC1_DIR_FROMDS 0x02 /* AP ->STA */ 152 #define IEEE80211_FC1_DIR_DSTODS 0x03 /* AP ->AP */ 153 154 #define IEEE80211_FC1_MORE_FRAG 0x04 155 #define IEEE80211_FC1_RETRY 0x08 156 #define IEEE80211_FC1_PWR_MGT 0x10 157 #define IEEE80211_FC1_MORE_DATA 0x20 158 #define IEEE80211_FC1_WEP 0x40 159 #define IEEE80211_FC1_ORDER 0x80 160 161 #define IEEE80211_SEQ_FRAG_MASK 0x000f 162 #define IEEE80211_SEQ_FRAG_SHIFT 0 163 #define IEEE80211_SEQ_SEQ_MASK 0xfff0 164 #define IEEE80211_SEQ_SEQ_SHIFT 4 165 #define IEEE80211_SEQ_RANGE 4096 166 167 #define IEEE80211_SEQ_ADD(seq, incr) \ 168 (((seq) + (incr)) & (IEEE80211_SEQ_RANGE-1)) 169 #define IEEE80211_SEQ_INC(seq) IEEE80211_SEQ_ADD(seq,1) 170 #define IEEE80211_SEQ_SUB(a, b) \ 171 (((a) + IEEE80211_SEQ_RANGE - (b)) & (IEEE80211_SEQ_RANGE-1)) 172 173 #define IEEE80211_SEQ_BA_RANGE 2048 /* 2^11 */ 174 #define IEEE80211_SEQ_BA_BEFORE(a, b) \ 175 (IEEE80211_SEQ_SUB(b, a+1) < IEEE80211_SEQ_BA_RANGE-1) 176 177 #define IEEE80211_NWID_LEN 32 178 179 #define IEEE80211_QOS_TXOP 0x00ff 180 /* bit 8 is reserved */ 181 #define IEEE80211_QOS_AMSDU 0x80 182 #define IEEE80211_QOS_AMSDU_S 7 183 #define IEEE80211_QOS_ACKPOLICY 0x60 184 #define IEEE80211_QOS_ACKPOLICY_S 5 185 #define IEEE80211_QOS_ACKPOLICY_NOACK 0x20 /* No ACK required */ 186 #define IEEE80211_QOS_ACKPOLICY_BA 0x60 /* Block ACK */ 187 #define IEEE80211_QOS_ESOP 0x10 188 #define IEEE80211_QOS_ESOP_S 4 189 #define IEEE80211_QOS_TID 0x0f 190 191 /* does frame have QoS sequence control data */ 192 #define IEEE80211_QOS_HAS_SEQ(wh) \ 193 (((wh)->i_fc[0] & \ 194 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == \ 195 (IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS)) 196 197 /* 198 * WME/802.11e information element. 199 */ 200 struct ieee80211_wme_info { 201 uint8_t wme_id; /* IEEE80211_ELEMID_VENDOR */ 202 uint8_t wme_len; /* length in bytes */ 203 uint8_t wme_oui[3]; /* 0x00, 0x50, 0xf2 */ 204 uint8_t wme_type; /* OUI type */ 205 uint8_t wme_subtype; /* OUI subtype */ 206 uint8_t wme_version; /* spec revision */ 207 uint8_t wme_info; /* QoS info */ 208 } __packed; 209 210 /* 211 * WME/802.11e Tspec Element 212 */ 213 struct ieee80211_wme_tspec { 214 uint8_t ts_id; 215 uint8_t ts_len; 216 uint8_t ts_oui[3]; 217 uint8_t ts_oui_type; 218 uint8_t ts_oui_subtype; 219 uint8_t ts_version; 220 uint8_t ts_tsinfo[3]; 221 uint8_t ts_nom_msdu[2]; 222 uint8_t ts_max_msdu[2]; 223 uint8_t ts_min_svc[4]; 224 uint8_t ts_max_svc[4]; 225 uint8_t ts_inactv_intv[4]; 226 uint8_t ts_susp_intv[4]; 227 uint8_t ts_start_svc[4]; 228 uint8_t ts_min_rate[4]; 229 uint8_t ts_mean_rate[4]; 230 uint8_t ts_max_burst[4]; 231 uint8_t ts_min_phy[4]; 232 uint8_t ts_peak_rate[4]; 233 uint8_t ts_delay[4]; 234 uint8_t ts_surplus[2]; 235 uint8_t ts_medium_time[2]; 236 } __packed; 237 238 /* 239 * WME AC parameter field 240 */ 241 struct ieee80211_wme_acparams { 242 uint8_t acp_aci_aifsn; 243 uint8_t acp_logcwminmax; 244 uint16_t acp_txop; 245 } __packed; 246 247 #define WME_NUM_AC 4 /* 4 AC categories */ 248 #define WME_NUM_TID 16 /* 16 tids */ 249 250 #define WME_PARAM_ACI 0x60 /* Mask for ACI field */ 251 #define WME_PARAM_ACI_S 5 /* Shift for ACI field */ 252 #define WME_PARAM_ACM 0x10 /* Mask for ACM bit */ 253 #define WME_PARAM_ACM_S 4 /* Shift for ACM bit */ 254 #define WME_PARAM_AIFSN 0x0f /* Mask for aifsn field */ 255 #define WME_PARAM_AIFSN_S 0 /* Shift for aifsn field */ 256 #define WME_PARAM_LOGCWMIN 0x0f /* Mask for CwMin field (in log) */ 257 #define WME_PARAM_LOGCWMIN_S 0 /* Shift for CwMin field */ 258 #define WME_PARAM_LOGCWMAX 0xf0 /* Mask for CwMax field (in log) */ 259 #define WME_PARAM_LOGCWMAX_S 4 /* Shift for CwMax field */ 260 261 #define WME_AC_TO_TID(_ac) ( \ 262 ((_ac) == WME_AC_VO) ? 6 : \ 263 ((_ac) == WME_AC_VI) ? 5 : \ 264 ((_ac) == WME_AC_BK) ? 1 : \ 265 0) 266 267 #define TID_TO_WME_AC(_tid) ( \ 268 ((_tid) == 0 || (_tid) == 3) ? WME_AC_BE : \ 269 ((_tid) < 3) ? WME_AC_BK : \ 270 ((_tid) < 6) ? WME_AC_VI : \ 271 WME_AC_VO) 272 273 /* 274 * WME Parameter Element 275 */ 276 struct ieee80211_wme_param { 277 uint8_t param_id; 278 uint8_t param_len; 279 uint8_t param_oui[3]; 280 uint8_t param_oui_type; 281 uint8_t param_oui_subtype; 282 uint8_t param_version; 283 uint8_t param_qosInfo; 284 #define WME_QOSINFO_COUNT 0x0f /* Mask for param count field */ 285 uint8_t param_reserved; 286 struct ieee80211_wme_acparams params_acParams[WME_NUM_AC]; 287 } __packed; 288 289 /* 290 * Management Notification Frame 291 */ 292 struct ieee80211_mnf { 293 uint8_t mnf_category; 294 uint8_t mnf_action; 295 uint8_t mnf_dialog; 296 uint8_t mnf_status; 297 } __packed; 298 #define MNF_SETUP_REQ 0 299 #define MNF_SETUP_RESP 1 300 #define MNF_TEARDOWN 2 301 302 /* 303 * 802.11n Management Action Frames 304 */ 305 /* generic frame format */ 306 struct ieee80211_action { 307 uint8_t ia_category; 308 uint8_t ia_action; 309 } __packed; 310 311 #define IEEE80211_ACTION_CAT_QOS 0 /* QoS */ 312 #define IEEE80211_ACTION_CAT_BA 3 /* BA */ 313 #define IEEE80211_ACTION_CAT_HT 7 /* HT */ 314 315 #define IEEE80211_ACTION_HT_TXCHWIDTH 0 /* recommended xmit chan width*/ 316 #define IEEE80211_ACTION_HT_MIMOPWRSAVE 1 /* MIMO power save */ 317 318 /* HT - recommended transmission channel width */ 319 struct ieee80211_action_ht_txchwidth { 320 struct ieee80211_action at_header; 321 uint8_t at_chwidth; 322 } __packed; 323 324 #define IEEE80211_A_HT_TXCHWIDTH_20 0 325 #define IEEE80211_A_HT_TXCHWIDTH_2040 1 326 327 /* HT - MIMO Power Save (NB: D2.04) */ 328 struct ieee80211_action_ht_mimopowersave { 329 struct ieee80211_action am_header; 330 uint8_t am_control; 331 } __packed; 332 333 #define IEEE80211_A_HT_MIMOPWRSAVE_ENA 0x01 /* PS enabled */ 334 #define IEEE80211_A_HT_MIMOPWRSAVE_MODE 0x02 335 #define IEEE80211_A_HT_MIMOPWRSAVE_MODE_S 1 336 #define IEEE80211_A_HT_MIMOPWRSAVE_DYNAMIC 0x02 /* Dynamic Mode */ 337 #define IEEE80211_A_HT_MIMOPWRSAVE_STATIC 0x00 /* no SM packets */ 338 /* bits 2-7 reserved */ 339 340 /* Block Ack actions */ 341 #define IEEE80211_ACTION_BA_ADDBA_REQUEST 0 /* ADDBA request */ 342 #define IEEE80211_ACTION_BA_ADDBA_RESPONSE 1 /* ADDBA response */ 343 #define IEEE80211_ACTION_BA_DELBA 2 /* DELBA */ 344 345 /* Block Ack Parameter Set */ 346 #define IEEE80211_BAPS_BUFSIZ 0xffc0 /* buffer size */ 347 #define IEEE80211_BAPS_BUFSIZ_S 6 348 #define IEEE80211_BAPS_TID 0x003c /* TID */ 349 #define IEEE80211_BAPS_TID_S 2 350 #define IEEE80211_BAPS_POLICY 0x0002 /* block ack policy */ 351 #define IEEE80211_BAPS_POLICY_S 1 352 353 #define IEEE80211_BAPS_POLICY_DELAYED (0<<IEEE80211_BAPS_POLICY_S) 354 #define IEEE80211_BAPS_POLICY_IMMEDIATE (1<<IEEE80211_BAPS_POLICY_S) 355 356 /* Block Ack Sequence Control */ 357 #define IEEE80211_BASEQ_START 0xfff0 /* starting seqnum */ 358 #define IEEE80211_BASEQ_START_S 4 359 #define IEEE80211_BASEQ_FRAG 0x000f /* fragment number */ 360 #define IEEE80211_BASEQ_FRAG_S 0 361 362 /* Delayed Block Ack Parameter Set */ 363 #define IEEE80211_DELBAPS_TID 0xf000 /* TID */ 364 #define IEEE80211_DELBAPS_TID_S 12 365 #define IEEE80211_DELBAPS_INIT 0x0800 /* initiator */ 366 #define IEEE80211_DELBAPS_INIT_S 11 367 368 /* BA - ADDBA request */ 369 struct ieee80211_action_ba_addbarequest { 370 struct ieee80211_action rq_header; 371 uint8_t rq_dialogtoken; 372 uint16_t rq_baparamset; 373 uint16_t rq_batimeout; /* in TUs */ 374 uint16_t rq_baseqctl; 375 } __packed; 376 377 /* BA - ADDBA response */ 378 struct ieee80211_action_ba_addbaresponse { 379 struct ieee80211_action rs_header; 380 uint8_t rs_dialogtoken; 381 uint16_t rs_statuscode; 382 uint16_t rs_baparamset; 383 uint16_t rs_batimeout; /* in TUs */ 384 } __packed; 385 386 /* BA - DELBA */ 387 struct ieee80211_action_ba_delba { 388 struct ieee80211_action dl_header; 389 uint16_t dl_baparamset; 390 uint16_t dl_reasoncode; 391 } __packed; 392 393 /* BAR Control */ 394 #define IEEE80211_BAR_TID 0xf000 /* TID */ 395 #define IEEE80211_BAR_TID_S 12 396 #define IEEE80211_BAR_COMP 0x0004 /* compressed */ 397 #define IEEE80211_BAR_MTID 0x0002 398 #define IEEE80211_BAR_NOACK 0x0001 /* no-ack policy */ 399 400 struct ieee80211_ba_request { 401 uint16_t rq_barctl; 402 uint16_t rq_barseqctl; 403 } __packed; 404 405 /* 406 * Control frames. 407 */ 408 struct ieee80211_frame_min { 409 uint8_t i_fc[2]; 410 uint8_t i_dur[2]; 411 uint8_t i_addr1[IEEE80211_ADDR_LEN]; 412 uint8_t i_addr2[IEEE80211_ADDR_LEN]; 413 /* FCS */ 414 } __packed; 415 416 struct ieee80211_frame_rts { 417 uint8_t i_fc[2]; 418 uint8_t i_dur[2]; 419 uint8_t i_ra[IEEE80211_ADDR_LEN]; 420 uint8_t i_ta[IEEE80211_ADDR_LEN]; 421 /* FCS */ 422 } __packed; 423 424 struct ieee80211_frame_cts { 425 uint8_t i_fc[2]; 426 uint8_t i_dur[2]; 427 uint8_t i_ra[IEEE80211_ADDR_LEN]; 428 /* FCS */ 429 } __packed; 430 431 struct ieee80211_frame_ack { 432 uint8_t i_fc[2]; 433 uint8_t i_dur[2]; 434 uint8_t i_ra[IEEE80211_ADDR_LEN]; 435 /* FCS */ 436 } __packed; 437 438 struct ieee80211_frame_pspoll { 439 uint8_t i_fc[2]; 440 uint8_t i_aid[2]; 441 uint8_t i_bssid[IEEE80211_ADDR_LEN]; 442 uint8_t i_ta[IEEE80211_ADDR_LEN]; 443 /* FCS */ 444 } __packed; 445 446 struct ieee80211_frame_cfend { /* NB: also CF-End+CF-Ack */ 447 uint8_t i_fc[2]; 448 uint8_t i_dur[2]; /* should be zero */ 449 uint8_t i_ra[IEEE80211_ADDR_LEN]; 450 uint8_t i_bssid[IEEE80211_ADDR_LEN]; 451 /* FCS */ 452 } __packed; 453 454 struct ieee80211_frame_bar { 455 uint8_t i_fc[2]; 456 uint8_t i_dur[2]; 457 uint8_t i_ra[IEEE80211_ADDR_LEN]; 458 uint8_t i_ta[IEEE80211_ADDR_LEN]; 459 uint16_t i_ctl; 460 uint16_t i_seq; 461 /* FCS */ 462 } __packed; 463 464 /* 465 * BEACON management packets 466 * 467 * octet timestamp[8] 468 * octet beacon interval[2] 469 * octet capability information[2] 470 * information element 471 * octet elemid 472 * octet length 473 * octet information[length] 474 */ 475 476 #define IEEE80211_BEACON_INTERVAL(beacon) \ 477 ((beacon)[8] | ((beacon)[9] << 8)) 478 #define IEEE80211_BEACON_CAPABILITY(beacon) \ 479 ((beacon)[10] | ((beacon)[11] << 8)) 480 481 #define IEEE80211_CAPINFO_ESS 0x0001 482 #define IEEE80211_CAPINFO_IBSS 0x0002 483 #define IEEE80211_CAPINFO_CF_POLLABLE 0x0004 484 #define IEEE80211_CAPINFO_CF_POLLREQ 0x0008 485 #define IEEE80211_CAPINFO_PRIVACY 0x0010 486 #define IEEE80211_CAPINFO_SHORT_PREAMBLE 0x0020 487 #define IEEE80211_CAPINFO_PBCC 0x0040 488 #define IEEE80211_CAPINFO_CHNL_AGILITY 0x0080 489 #define IEEE80211_CAPINFO_SPECTRUM_MGMT 0x0100 490 /* bit 9 is reserved */ 491 #define IEEE80211_CAPINFO_SHORT_SLOTTIME 0x0400 492 #define IEEE80211_CAPINFO_RSN 0x0800 493 /* bit 12 is reserved */ 494 #define IEEE80211_CAPINFO_DSSSOFDM 0x2000 495 /* bits 14-15 are reserved */ 496 497 /* 498 * 802.11i/WPA information element (maximally sized). 499 */ 500 struct ieee80211_ie_wpa { 501 uint8_t wpa_id; /* IEEE80211_ELEMID_VENDOR */ 502 uint8_t wpa_len; /* length in bytes */ 503 uint8_t wpa_oui[3]; /* 0x00, 0x50, 0xf2 */ 504 uint8_t wpa_type; /* OUI type */ 505 uint16_t wpa_version; /* spec revision */ 506 uint32_t wpa_mcipher[1]; /* multicast/group key cipher */ 507 uint16_t wpa_uciphercnt; /* # pairwise key ciphers */ 508 uint32_t wpa_uciphers[8];/* ciphers */ 509 uint16_t wpa_authselcnt; /* authentication selector cnt*/ 510 uint32_t wpa_authsels[8];/* selectors */ 511 uint16_t wpa_caps; /* 802.11i capabilities */ 512 uint16_t wpa_pmkidcnt; /* 802.11i pmkid count */ 513 uint16_t wpa_pmkids[8]; /* 802.11i pmkids */ 514 } __packed; 515 516 /* 517 * 802.11n HT Capability IE 518 * NB: these reflect D1.10 519 */ 520 struct ieee80211_ie_htcap { 521 uint8_t hc_id; /* element ID */ 522 uint8_t hc_len; /* length in bytes */ 523 uint16_t hc_cap; /* HT caps (see below) */ 524 uint8_t hc_param; /* HT params (see below) */ 525 uint8_t hc_mcsset[16]; /* supported MCS set */ 526 uint16_t hc_extcap; /* extended HT capabilities */ 527 uint32_t hc_txbf; /* txbf capabilities */ 528 uint8_t hc_antenna; /* antenna capabilities */ 529 } __packed; 530 531 /* HT capability flags (ht_cap) */ 532 #define IEEE80211_HTCAP_LDPC 0x0001 /* LDPC supported */ 533 #define IEEE80211_HTCAP_CHWIDTH40 0x0002 /* 20/40 supported */ 534 #define IEEE80211_HTCAP_SMPS 0x000c /* SM Power Save mode */ 535 #define IEEE80211_HTCAP_SMPS_OFF 0x0000 /* none (static mode) */ 536 #define IEEE80211_HTCAP_SMPS_DYNAMIC 0x0004 /* send RTS first */ 537 /* NB: SMPS value 2 is reserved */ 538 #define IEEE80211_HTCAP_SMPS_ENA 0x000c /* enabled */ 539 #define IEEE80211_HTCAP_GREENFIELD 0x0010 /* Greenfield supported */ 540 #define IEEE80211_HTCAP_SHORTGI20 0x0020 /* Short GI in 20MHz */ 541 #define IEEE80211_HTCAP_SHORTGI40 0x0040 /* Short GI in 40MHz */ 542 #define IEEE80211_HTCAP_TXSTBC 0x0080 /* STBC tx ok */ 543 #define IEEE80211_HTCAP_RXSTBC 0x0300 /* STBC rx support */ 544 #define IEEE80211_HTCAP_RXSTBC_S 8 545 #define IEEE80211_HTCAP_RXSTBC_1STREAM 0x0100 /* 1 spatial stream */ 546 #define IEEE80211_HTCAP_RXSTBC_2STREAM 0x0200 /* 1-2 spatial streams*/ 547 #define IEEE80211_HTCAP_RXSTBC_3STREAM 0x0300 /* 1-3 spatial streams*/ 548 #define IEEE80211_HTCAP_DELBA 0x0400 /* HT DELBA supported */ 549 #define IEEE80211_HTCAP_MAXAMSDU 0x0800 /* max A-MSDU length */ 550 #define IEEE80211_HTCAP_MAXAMSDU_7935 0x0800 /* 7935 octets */ 551 #define IEEE80211_HTCAP_MAXAMSDU_3839 0x0000 /* 3839 octets */ 552 #define IEEE80211_HTCAP_DSSSCCK40 0x1000 /* DSSS/CCK in 40MHz */ 553 #define IEEE80211_HTCAP_PSMP 0x2000 /* PSMP supported */ 554 #define IEEE80211_HTCAP_40INTOLERANT 0x4000 /* 40MHz intolerant */ 555 #define IEEE80211_HTCAP_LSIGTXOPPROT 0x8000 /* L-SIG TXOP prot */ 556 557 /* HT parameters (hc_param) */ 558 #define IEEE80211_HTCAP_MAXRXAMPDU 0x03 /* max rx A-MPDU factor */ 559 #define IEEE80211_HTCAP_MAXRXAMPDU_S 0 560 #define IEEE80211_HTCAP_MAXRXAMPDU_8K 0 561 #define IEEE80211_HTCAP_MAXRXAMPDU_16K 1 562 #define IEEE80211_HTCAP_MAXRXAMPDU_32K 2 563 #define IEEE80211_HTCAP_MAXRXAMPDU_64K 3 564 #define IEEE80211_HTCAP_MPDUDENSITY 0x1c /* min MPDU start spacing */ 565 #define IEEE80211_HTCAP_MPDUDENSITY_S 2 566 #define IEEE80211_HTCAP_MPDUDENSITY_NA 0 /* no time restriction */ 567 #define IEEE80211_HTCAP_MPDUDENSITY_025 1 /* 1/4 us */ 568 #define IEEE80211_HTCAP_MPDUDENSITY_05 2 /* 1/2 us */ 569 #define IEEE80211_HTCAP_MPDUDENSITY_1 3 /* 1 us */ 570 #define IEEE80211_HTCAP_MPDUDENSITY_2 4 /* 2 us */ 571 #define IEEE80211_HTCAP_MPDUDENSITY_4 5 /* 4 us */ 572 #define IEEE80211_HTCAP_MPDUDENSITY_8 6 /* 8 us */ 573 #define IEEE80211_HTCAP_MPDUDENSITY_16 7 /* 16 us */ 574 575 /* HT extended capabilities (hc_extcap) */ 576 #define IEEE80211_HTCAP_PCO 0x0001 /* PCO capable */ 577 #define IEEE80211_HTCAP_PCOTRANS 0x0006 /* PCO transition time */ 578 #define IEEE80211_HTCAP_PCOTRANS_S 1 579 #define IEEE80211_HTCAP_PCOTRANS_04 0x0002 /* 400 us */ 580 #define IEEE80211_HTCAP_PCOTRANS_15 0x0004 /* 1.5 ms */ 581 #define IEEE80211_HTCAP_PCOTRANS_5 0x0006 /* 5 ms */ 582 /* bits 3-7 reserved */ 583 #define IEEE80211_HTCAP_MCSFBACK 0x0300 /* MCS feedback */ 584 #define IEEE80211_HTCAP_MCSFBACK_S 8 585 #define IEEE80211_HTCAP_MCSFBACK_NONE 0x0000 /* nothing provided */ 586 #define IEEE80211_HTCAP_MCSFBACK_UNSOL 0x0200 /* unsolicited feedback */ 587 #define IEEE80211_HTCAP_MCSFBACK_MRQ 0x0300 /* " "+respond to MRQ */ 588 #define IEEE80211_HTCAP_HTC 0x0400 /* +HTC support */ 589 #define IEEE80211_HTCAP_RDR 0x0800 /* reverse direction responder*/ 590 /* bits 12-15 reserved */ 591 592 /* 593 * 802.11n HT Information IE 594 */ 595 struct ieee80211_ie_htinfo { 596 uint8_t hi_id; /* element ID */ 597 uint8_t hi_len; /* length in bytes */ 598 uint8_t hi_ctrlchannel; /* primary channel */ 599 uint8_t hi_byte1; /* ht ie byte 1 */ 600 uint8_t hi_byte2; /* ht ie byte 2 */ 601 uint8_t hi_byte3; /* ht ie byte 3 */ 602 uint16_t hi_byte45; /* ht ie bytes 4+5 */ 603 uint8_t hi_basicmcsset[16]; /* basic MCS set */ 604 } __packed; 605 606 /* byte1 */ 607 #define IEEE80211_HTINFO_2NDCHAN 0x03 /* secondary/ext chan offset */ 608 #define IEEE80211_HTINFO_2NDCHAN_S 0 609 #define IEEE80211_HTINFO_2NDCHAN_NONE 0x00 /* no secondary/ext channel */ 610 #define IEEE80211_HTINFO_2NDCHAN_ABOVE 0x01 /* above private channel */ 611 /* NB: 2 is reserved */ 612 #define IEEE80211_HTINFO_2NDCHAN_BELOW 0x03 /* below primary channel */ 613 #define IEEE80211_HTINFO_TXWIDTH 0x04 /* tx channel width */ 614 #define IEEE80211_HTINFO_TXWIDTH_20 0x00 /* 20MHz width */ 615 #define IEEE80211_HTINFO_TXWIDTH_2040 0x04 /* any supported width */ 616 #define IEEE80211_HTINFO_RIFSMODE 0x08 /* Reduced IFS (RIFS) use */ 617 #define IEEE80211_HTINFO_RIFSMODE_PROH 0x00 /* RIFS use prohibited */ 618 #define IEEE80211_HTINFO_RIFSMODE_PERM 0x08 /* RIFS use permitted */ 619 #define IEEE80211_HTINFO_PMSPONLY 0x10 /* PSMP required to associate */ 620 #define IEEE80211_HTINFO_SIGRAN 0xe0 /* shortest Service Interval */ 621 #define IEEE80211_HTINFO_SIGRAN_S 5 622 #define IEEE80211_HTINFO_SIGRAN_5 0x00 /* 5 ms */ 623 /* XXX add rest */ 624 625 /* bytes 2+3 */ 626 #define IEEE80211_HTINFO_OPMODE 0x03 /* operating mode */ 627 #define IEEE80211_HTINFO_OPMODE_S 0 628 #define IEEE80211_HTINFO_OPMODE_PURE 0x00 /* no protection */ 629 #define IEEE80211_HTINFO_OPMODE_PROTOPT 0x01 /* protection optional */ 630 #define IEEE80211_HTINFO_OPMODE_HT20PR 0x02 /* protection for HT20 sta's */ 631 #define IEEE80211_HTINFO_OPMODE_MIXED 0x03 /* protection for legacy sta's*/ 632 #define IEEE80211_HTINFO_NONGF_PRESENT 0x04 /* non-GF sta's present */ 633 #define IEEE80211_HTINFO_TXBL 0x08 /* transmit burst limit */ 634 #define IEEE80211_HTINFO_NONHT_PRESENT 0x10 /* non-HT sta's present */ 635 /* bits 5-15 reserved */ 636 637 /* bytes 4+5 */ 638 #define IEEE80211_HTINFO_2NDARYBEACON 0x01 639 #define IEEE80211_HTINFO_LSIGTXOPPROT 0x02 640 #define IEEE80211_HTINFO_PCO_ACTIVE 0x04 641 #define IEEE80211_HTINFO_40MHZPHASE 0x08 642 643 /* byte5 */ 644 #define IEEE80211_HTINFO_BASIC_STBCMCS 0x7f 645 #define IEEE80211_HTINFO_BASIC_STBCMCS_S 0 646 #define IEEE80211_HTINFO_DUALPROTECTED 0x80 647 648 /* 649 * Management information element payloads. 650 */ 651 652 enum { 653 IEEE80211_ELEMID_SSID = 0, 654 IEEE80211_ELEMID_RATES = 1, 655 IEEE80211_ELEMID_FHPARMS = 2, 656 IEEE80211_ELEMID_DSPARMS = 3, 657 IEEE80211_ELEMID_CFPARMS = 4, 658 IEEE80211_ELEMID_TIM = 5, 659 IEEE80211_ELEMID_IBSSPARMS = 6, 660 IEEE80211_ELEMID_COUNTRY = 7, 661 IEEE80211_ELEMID_CHALLENGE = 16, 662 /* 17-31 reserved for challenge text extension */ 663 IEEE80211_ELEMID_PWRCNSTR = 32, 664 IEEE80211_ELEMID_PWRCAP = 33, 665 IEEE80211_ELEMID_TPCREQ = 34, 666 IEEE80211_ELEMID_TPCREP = 35, 667 IEEE80211_ELEMID_SUPPCHAN = 36, 668 IEEE80211_ELEMID_CHANSWITCHANN = 37, 669 IEEE80211_ELEMID_MEASREQ = 38, 670 IEEE80211_ELEMID_MEASREP = 39, 671 IEEE80211_ELEMID_QUIET = 40, 672 IEEE80211_ELEMID_IBSSDFS = 41, 673 IEEE80211_ELEMID_ERP = 42, 674 IEEE80211_ELEMID_HTCAP = 45, 675 IEEE80211_ELEMID_RSN = 48, 676 IEEE80211_ELEMID_XRATES = 50, 677 IEEE80211_ELEMID_HTINFO = 61, 678 IEEE80211_ELEMID_TPC = 150, 679 IEEE80211_ELEMID_CCKM = 156, 680 IEEE80211_ELEMID_VENDOR = 221, /* vendor private */ 681 }; 682 683 struct ieee80211_tim_ie { 684 uint8_t tim_ie; /* IEEE80211_ELEMID_TIM */ 685 uint8_t tim_len; 686 uint8_t tim_count; /* DTIM count */ 687 uint8_t tim_period; /* DTIM period */ 688 uint8_t tim_bitctl; /* bitmap control */ 689 uint8_t tim_bitmap[1]; /* variable-length bitmap */ 690 } __packed; 691 692 struct ieee80211_country_ie { 693 uint8_t ie; /* IEEE80211_ELEMID_COUNTRY */ 694 uint8_t len; 695 uint8_t cc[3]; /* ISO CC+(I)ndoor/(O)utdoor */ 696 struct { 697 uint8_t schan; /* starting channel */ 698 uint8_t nchan; /* number channels */ 699 uint8_t maxtxpwr; /* tx power cap */ 700 } __packed band[10]; /* sub bands */ 701 } __packed; 702 703 /* 704 * 802.11h Channel Switch Announcement (CSA). 705 */ 706 struct ieee80211_csa_ie { 707 uint8_t csa_ie; /* IEEE80211_ELEMID_CHANSWITCHANN */ 708 uint8_t csa_len; 709 uint8_t csa_mode; /* Channel Switch Mode */ 710 uint8_t csa_newchan; /* New Channel Number */ 711 uint8_t csa_count; /* Channel Switch Count */ 712 } __packed; 713 714 /* 715 * Atheros advanced capability information element. 716 */ 717 struct ieee80211_ath_ie { 718 uint8_t ath_id; /* IEEE80211_ELEMID_VENDOR */ 719 uint8_t ath_len; /* length in bytes */ 720 uint8_t ath_oui[3]; /* 0x00, 0x03, 0x7f */ 721 uint8_t ath_oui_type; /* OUI type */ 722 uint8_t ath_oui_subtype; /* OUI subtype */ 723 uint8_t ath_version; /* spec revision */ 724 uint8_t ath_capability; /* capability info */ 725 #define ATHEROS_CAP_TURBO_PRIME 0x01 /* dynamic turbo--aka Turbo' */ 726 #define ATHEROS_CAP_COMPRESSION 0x02 /* data compression */ 727 #define ATHEROS_CAP_FAST_FRAME 0x04 /* fast (jumbo) frames */ 728 #define ATHEROS_CAP_XR 0x08 /* Xtended Range support */ 729 #define ATHEROS_CAP_AR 0x10 /* Advanded Radar support */ 730 #define ATHEROS_CAP_BURST 0x20 /* Bursting - not negotiated */ 731 #define ATHEROS_CAP_WME 0x40 /* CWMin tuning */ 732 #define ATHEROS_CAP_BOOST 0x80 /* use turbo/!turbo mode */ 733 uint8_t ath_defkeyix[2]; 734 } __packed; 735 736 /* rate set entries are in .5 Mb/s units, and potentially marked as basic */ 737 #define IEEE80211_RATE_BASIC 0x80 738 #define IEEE80211_RATE_VAL 0x7f 739 740 /* EPR information element flags */ 741 #define IEEE80211_ERP_NON_ERP_PRESENT 0x01 742 #define IEEE80211_ERP_USE_PROTECTION 0x02 743 #define IEEE80211_ERP_LONG_PREAMBLE 0x04 744 745 #define ATH_OUI 0x7f0300 /* Atheros OUI */ 746 #define ATH_OUI_TYPE 0x01 747 #define ATH_OUI_SUBTYPE 0x01 748 #define ATH_OUI_VERSION 0x00 749 750 #define BCM_OUI 0x4c9000 /* Broadcom OUI */ 751 #define BCM_OUI_HTCAP 51 /* pre-draft HTCAP ie */ 752 #define BCM_OUI_HTINFO 52 /* pre-draft HTINFO ie */ 753 754 #define WPA_OUI 0xf25000 755 #define WPA_OUI_TYPE 0x01 756 #define WPA_VERSION 1 /* current supported version */ 757 758 #define WPA_CSE_NULL 0x00 759 #define WPA_CSE_WEP40 0x01 760 #define WPA_CSE_TKIP 0x02 761 #define WPA_CSE_CCMP 0x04 762 #define WPA_CSE_WEP104 0x05 763 764 #define WPA_ASE_NONE 0x00 765 #define WPA_ASE_8021X_UNSPEC 0x01 766 #define WPA_ASE_8021X_PSK 0x02 767 768 #define RSN_OUI 0xac0f00 769 #define RSN_VERSION 1 /* current supported version */ 770 771 #define RSN_CSE_NULL 0x00 772 #define RSN_CSE_WEP40 0x01 773 #define RSN_CSE_TKIP 0x02 774 #define RSN_CSE_WRAP 0x03 775 #define RSN_CSE_CCMP 0x04 776 #define RSN_CSE_WEP104 0x05 777 778 #define RSN_ASE_NONE 0x00 779 #define RSN_ASE_8021X_UNSPEC 0x01 780 #define RSN_ASE_8021X_PSK 0x02 781 782 #define RSN_CAP_PREAUTH 0x01 783 784 #define WME_OUI 0xf25000 785 #define WME_OUI_TYPE 0x02 786 #define WME_INFO_OUI_SUBTYPE 0x00 787 #define WME_PARAM_OUI_SUBTYPE 0x01 788 #define WME_VERSION 1 789 790 /* WME stream classes */ 791 #define WME_AC_BE 0 /* best effort */ 792 #define WME_AC_BK 1 /* background */ 793 #define WME_AC_VI 2 /* video */ 794 #define WME_AC_VO 3 /* voice */ 795 796 /* 797 * AUTH management packets 798 * 799 * octet algo[2] 800 * octet seq[2] 801 * octet status[2] 802 * octet chal.id 803 * octet chal.length 804 * octet chal.text[253] NB: 1-253 bytes 805 */ 806 807 /* challenge length for shared key auth */ 808 #define IEEE80211_CHALLENGE_LEN 128 809 810 #define IEEE80211_AUTH_ALG_OPEN 0x0000 811 #define IEEE80211_AUTH_ALG_SHARED 0x0001 812 #define IEEE80211_AUTH_ALG_LEAP 0x0080 813 814 enum { 815 IEEE80211_AUTH_OPEN_REQUEST = 1, 816 IEEE80211_AUTH_OPEN_RESPONSE = 2, 817 }; 818 819 enum { 820 IEEE80211_AUTH_SHARED_REQUEST = 1, 821 IEEE80211_AUTH_SHARED_CHALLENGE = 2, 822 IEEE80211_AUTH_SHARED_RESPONSE = 3, 823 IEEE80211_AUTH_SHARED_PASS = 4, 824 }; 825 826 /* 827 * Reason and status codes. 828 * 829 * Reason codes are used in management frames to indicate why an 830 * action took place (e.g. on disassociation). Status codes are 831 * used in management frames to indicate the result of an operation. 832 * 833 * Unlisted codes are reserved 834 */ 835 836 enum { 837 IEEE80211_REASON_UNSPECIFIED = 1, 838 IEEE80211_REASON_AUTH_EXPIRE = 2, 839 IEEE80211_REASON_AUTH_LEAVE = 3, 840 IEEE80211_REASON_ASSOC_EXPIRE = 4, 841 IEEE80211_REASON_ASSOC_TOOMANY = 5, 842 IEEE80211_REASON_NOT_AUTHED = 6, 843 IEEE80211_REASON_NOT_ASSOCED = 7, 844 IEEE80211_REASON_ASSOC_LEAVE = 8, 845 IEEE80211_REASON_ASSOC_NOT_AUTHED = 9, 846 IEEE80211_REASON_DISASSOC_PWRCAP_BAD = 10, /* 11h */ 847 IEEE80211_REASON_DISASSOC_SUPCHAN_BAD = 11, /* 11h */ 848 IEEE80211_REASON_IE_INVALID = 13, /* 11i */ 849 IEEE80211_REASON_MIC_FAILURE = 14, /* 11i */ 850 IEEE80211_REASON_4WAY_HANDSHAKE_TIMEOUT = 15, /* 11i */ 851 IEEE80211_REASON_GROUP_KEY_UPDATE_TIMEOUT = 16, /* 11i */ 852 IEEE80211_REASON_IE_IN_4WAY_DIFFERS = 17, /* 11i */ 853 IEEE80211_REASON_GROUP_CIPHER_INVALID = 18, /* 11i */ 854 IEEE80211_REASON_PAIRWISE_CIPHER_INVALID= 19, /* 11i */ 855 IEEE80211_REASON_AKMP_INVALID = 20, /* 11i */ 856 IEEE80211_REASON_UNSUPP_RSN_IE_VERSION = 21, /* 11i */ 857 IEEE80211_REASON_INVALID_RSN_IE_CAP = 22, /* 11i */ 858 IEEE80211_REASON_802_1X_AUTH_FAILED = 23, /* 11i */ 859 IEEE80211_REASON_CIPHER_SUITE_REJECTED = 24, /* 11i */ 860 861 IEEE80211_STATUS_SUCCESS = 0, 862 IEEE80211_STATUS_UNSPECIFIED = 1, 863 IEEE80211_STATUS_CAPINFO = 10, 864 IEEE80211_STATUS_NOT_ASSOCED = 11, 865 IEEE80211_STATUS_OTHER = 12, 866 IEEE80211_STATUS_ALG = 13, 867 IEEE80211_STATUS_SEQUENCE = 14, 868 IEEE80211_STATUS_CHALLENGE = 15, 869 IEEE80211_STATUS_TIMEOUT = 16, 870 IEEE80211_STATUS_TOOMANY = 17, 871 IEEE80211_STATUS_BASIC_RATE = 18, 872 IEEE80211_STATUS_SP_REQUIRED = 19, /* 11b */ 873 IEEE80211_STATUS_PBCC_REQUIRED = 20, /* 11b */ 874 IEEE80211_STATUS_CA_REQUIRED = 21, /* 11b */ 875 IEEE80211_STATUS_SPECMGMT_REQUIRED = 22, /* 11h */ 876 IEEE80211_STATUS_PWRCAP_REQUIRED = 23, /* 11h */ 877 IEEE80211_STATUS_SUPCHAN_REQUIRED = 24, /* 11h */ 878 IEEE80211_STATUS_SHORTSLOT_REQUIRED = 25, /* 11g */ 879 IEEE80211_STATUS_DSSSOFDM_REQUIRED = 26, /* 11g */ 880 IEEE80211_STATUS_INVALID_IE = 40, /* 11i */ 881 IEEE80211_STATUS_GROUP_CIPHER_INVALID = 41, /* 11i */ 882 IEEE80211_STATUS_PAIRWISE_CIPHER_INVALID = 42, /* 11i */ 883 IEEE80211_STATUS_AKMP_INVALID = 43, /* 11i */ 884 IEEE80211_STATUS_UNSUPP_RSN_IE_VERSION = 44, /* 11i */ 885 IEEE80211_STATUS_INVALID_RSN_IE_CAP = 45, /* 11i */ 886 IEEE80211_STATUS_CIPHER_SUITE_REJECTED = 46, /* 11i */ 887 }; 888 889 #define IEEE80211_WEP_KEYLEN 5 /* 40bit */ 890 #define IEEE80211_WEP_IVLEN 3 /* 24bit */ 891 #define IEEE80211_WEP_KIDLEN 1 /* 1 octet */ 892 #define IEEE80211_WEP_CRCLEN 4 /* CRC-32 */ 893 #define IEEE80211_WEP_TOTLEN (IEEE80211_WEP_IVLEN + \ 894 IEEE80211_WEP_KIDLEN + \ 895 IEEE80211_WEP_CRCLEN) 896 #define IEEE80211_WEP_NKID 4 /* number of key ids */ 897 898 /* 899 * 802.11i defines an extended IV for use with non-WEP ciphers. 900 * When the EXTIV bit is set in the key id byte an additional 901 * 4 bytes immediately follow the IV for TKIP. For CCMP the 902 * EXTIV bit is likewise set but the 8 bytes represent the 903 * CCMP header rather than IV+extended-IV. 904 */ 905 #define IEEE80211_WEP_EXTIV 0x20 906 #define IEEE80211_WEP_EXTIVLEN 4 /* extended IV length */ 907 #define IEEE80211_WEP_MICLEN 8 /* trailing MIC */ 908 909 #define IEEE80211_CRC_LEN 4 910 911 /* 912 * Maximum acceptable MTU is: 913 * IEEE80211_MAX_LEN - WEP overhead - CRC - 914 * QoS overhead - RSN/WPA overhead 915 * Min is arbitrarily chosen > IEEE80211_MIN_LEN. The default 916 * mtu is Ethernet-compatible; it's set by ether_ifattach. 917 */ 918 #define IEEE80211_MTU_MAX 2290 919 #define IEEE80211_MTU_MIN 32 920 921 #define IEEE80211_MAX_LEN (2300 + IEEE80211_CRC_LEN + \ 922 (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN)) 923 #define IEEE80211_ACK_LEN \ 924 (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN) 925 #define IEEE80211_MIN_LEN \ 926 (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN) 927 928 /* 929 * The 802.11 spec says at most 2007 stations may be 930 * associated at once. For most AP's this is way more 931 * than is feasible so we use a default of 128. This 932 * number may be overridden by the driver and/or by 933 * user configuration. 934 */ 935 #define IEEE80211_AID_MAX 2007 936 #define IEEE80211_AID_DEF 128 937 938 #define IEEE80211_AID(b) ((b) &~ 0xc000) 939 940 /* 941 * RTS frame length parameters. The default is specified in 942 * the 802.11 spec as 512; we treat it as implementation-dependent 943 * so it's defined in ieee80211_var.h. The max may be wrong 944 * for jumbo frames. 945 */ 946 #define IEEE80211_RTS_MIN 1 947 #define IEEE80211_RTS_MAX 2346 948 949 /* 950 * TX fragmentation parameters. As above for RTS, we treat 951 * default as implementation-dependent so define it elsewhere. 952 */ 953 #define IEEE80211_FRAG_MIN 256 954 #define IEEE80211_FRAG_MAX 2346 955 956 /* 957 * Beacon interval (TU's). Min+max come from WiFi requirements. 958 * As above, we treat default as implementation-dependent so 959 * define it elsewhere. 960 */ 961 #define IEEE80211_BINTVAL_MAX 1000 /* max beacon interval (TU's) */ 962 #define IEEE80211_BINTVAL_MIN 25 /* min beacon interval (TU's) */ 963 964 /* 965 * DTIM period (beacons). Min+max are not really defined 966 * by the protocol but we want them publicly visible so 967 * define them here. 968 */ 969 #define IEEE80211_DTIM_MAX 15 /* max DTIM period */ 970 #define IEEE80211_DTIM_MIN 1 /* min DTIM period */ 971 972 /* 973 * Beacon miss threshold (beacons). As for DTIM, we define 974 * them here to be publicly visible. Note the max may be 975 * clamped depending on device capabilities. 976 */ 977 #define IEEE80211_HWBMISS_MIN 1 978 #define IEEE80211_HWBMISS_MAX 255 979 980 /* 981 * 802.11 frame duration definitions. 982 */ 983 984 struct ieee80211_duration { 985 uint16_t d_rts_dur; 986 uint16_t d_data_dur; 987 uint16_t d_plcp_len; 988 uint8_t d_residue; /* unused octets in time slot */ 989 }; 990 991 /* One Time Unit (TU) is 1Kus = 1024 microseconds. */ 992 #define IEEE80211_DUR_TU 1024 993 994 /* IEEE 802.11b durations for DSSS PHY in microseconds */ 995 #define IEEE80211_DUR_DS_LONG_PREAMBLE 144 996 #define IEEE80211_DUR_DS_SHORT_PREAMBLE 72 997 998 #define IEEE80211_DUR_DS_SLOW_PLCPHDR 48 999 #define IEEE80211_DUR_DS_FAST_PLCPHDR 24 1000 #define IEEE80211_DUR_DS_SLOW_ACK 112 1001 #define IEEE80211_DUR_DS_FAST_ACK 56 1002 #define IEEE80211_DUR_DS_SLOW_CTS 112 1003 #define IEEE80211_DUR_DS_FAST_CTS 56 1004 1005 #define IEEE80211_DUR_DS_SLOT 20 1006 #define IEEE80211_DUR_DS_SIFS 10 1007 #define IEEE80211_DUR_DS_PIFS (IEEE80211_DUR_DS_SIFS + IEEE80211_DUR_DS_SLOT) 1008 #define IEEE80211_DUR_DS_DIFS (IEEE80211_DUR_DS_SIFS + \ 1009 2 * IEEE80211_DUR_DS_SLOT) 1010 #define IEEE80211_DUR_DS_EIFS (IEEE80211_DUR_DS_SIFS + \ 1011 IEEE80211_DUR_DS_SLOW_ACK + \ 1012 IEEE80211_DUR_DS_LONG_PREAMBLE + \ 1013 IEEE80211_DUR_DS_SLOW_PLCPHDR + \ 1014 IEEE80211_DUR_DIFS) 1015 1016 /* 1017 * Atheros fast-frame encapsulation format. 1018 * FF max payload: 1019 * 802.2 + FFHDR + HPAD + 802.3 + 802.2 + 1500 + SPAD + 802.3 + 802.2 + 1500: 1020 * 8 + 4 + 4 + 14 + 8 + 1500 + 6 + 14 + 8 + 1500 1021 * = 3066 1022 */ 1023 /* fast frame header is 32-bits */ 1024 #define ATH_FF_PROTO 0x0000003f /* protocol */ 1025 #define ATH_FF_PROTO_S 0 1026 #define ATH_FF_FTYPE 0x000000c0 /* frame type */ 1027 #define ATH_FF_FTYPE_S 6 1028 #define ATH_FF_HLEN32 0x00000300 /* optional hdr length */ 1029 #define ATH_FF_HLEN32_S 8 1030 #define ATH_FF_SEQNUM 0x001ffc00 /* sequence number */ 1031 #define ATH_FF_SEQNUM_S 10 1032 #define ATH_FF_OFFSET 0xffe00000 /* offset to 2nd payload */ 1033 #define ATH_FF_OFFSET_S 21 1034 1035 #define ATH_FF_MAX_HDR_PAD 4 1036 #define ATH_FF_MAX_SEP_PAD 6 1037 #define ATH_FF_MAX_HDR 30 1038 1039 #define ATH_FF_PROTO_L2TUNNEL 0 /* L2 tunnel protocol */ 1040 #define ATH_FF_ETH_TYPE 0x88bd /* Ether type for encapsulated frames */ 1041 #define ATH_FF_SNAP_ORGCODE_0 0x00 1042 #define ATH_FF_SNAP_ORGCODE_1 0x03 1043 #define ATH_FF_SNAP_ORGCODE_2 0x7f 1044 1045 #endif /* !_NET80211_IEEE80211_H_ */ 1046
Indexes created Tue Oct 07 11:09:55 GMT 2025