1 /* $OpenBSD: ieee80211.h,v 1.50 2013/01/17 02:51:56 claudio Exp $ */ 2 /* $NetBSD: ieee80211.h,v 1.6 2004/04/30 23:51:53 dyoung Exp $ */ 3 4 /*- 5 * Copyright (c) 2001 Atsushi Onoe 6 * Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 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 /* 41 * Generic definitions for IEEE 802.11 frames. 42 */ 43 struct ieee80211_frame { 44 u_int8_t i_fc[2]; 45 u_int8_t i_dur[2]; 46 u_int8_t i_addr1[IEEE80211_ADDR_LEN]; 47 u_int8_t i_addr2[IEEE80211_ADDR_LEN]; 48 u_int8_t i_addr3[IEEE80211_ADDR_LEN]; 49 u_int8_t i_seq[2]; 50 } __packed; 51 52 struct ieee80211_qosframe { 53 u_int8_t i_fc[2]; 54 u_int8_t i_dur[2]; 55 u_int8_t i_addr1[IEEE80211_ADDR_LEN]; 56 u_int8_t i_addr2[IEEE80211_ADDR_LEN]; 57 u_int8_t i_addr3[IEEE80211_ADDR_LEN]; 58 u_int8_t i_seq[2]; 59 u_int8_t i_qos[2]; 60 } __packed; 61 62 struct ieee80211_htframe { /* 11n */ 63 u_int8_t i_fc[2]; 64 u_int8_t i_dur[2]; 65 u_int8_t i_addr1[IEEE80211_ADDR_LEN]; 66 u_int8_t i_addr2[IEEE80211_ADDR_LEN]; 67 u_int8_t i_addr3[IEEE80211_ADDR_LEN]; 68 u_int8_t i_seq[2]; 69 u_int8_t i_qos[2]; 70 u_int8_t i_ht[4]; 71 } __packed; 72 73 struct ieee80211_frame_addr4 { 74 u_int8_t i_fc[2]; 75 u_int8_t i_dur[2]; 76 u_int8_t i_addr1[IEEE80211_ADDR_LEN]; 77 u_int8_t i_addr2[IEEE80211_ADDR_LEN]; 78 u_int8_t i_addr3[IEEE80211_ADDR_LEN]; 79 u_int8_t i_seq[2]; 80 u_int8_t i_addr4[IEEE80211_ADDR_LEN]; 81 } __packed; 82 83 struct ieee80211_qosframe_addr4 { 84 u_int8_t i_fc[2]; 85 u_int8_t i_dur[2]; 86 u_int8_t i_addr1[IEEE80211_ADDR_LEN]; 87 u_int8_t i_addr2[IEEE80211_ADDR_LEN]; 88 u_int8_t i_addr3[IEEE80211_ADDR_LEN]; 89 u_int8_t i_seq[2]; 90 u_int8_t i_addr4[IEEE80211_ADDR_LEN]; 91 u_int8_t i_qos[2]; 92 } __packed; 93 94 struct ieee80211_htframe_addr4 { /* 11n */ 95 u_int8_t i_fc[2]; 96 u_int8_t i_dur[2]; 97 u_int8_t i_addr1[IEEE80211_ADDR_LEN]; 98 u_int8_t i_addr2[IEEE80211_ADDR_LEN]; 99 u_int8_t i_addr3[IEEE80211_ADDR_LEN]; 100 u_int8_t i_seq[2]; 101 u_int8_t i_addr4[IEEE80211_ADDR_LEN]; 102 u_int8_t i_qos[2]; 103 u_int8_t i_ht[4]; 104 } __packed; 105 106 #define IEEE80211_FC0_VERSION_MASK 0x03 107 #define IEEE80211_FC0_VERSION_SHIFT 0 108 #define IEEE80211_FC0_VERSION_0 0x00 109 #define IEEE80211_FC0_TYPE_MASK 0x0c 110 #define IEEE80211_FC0_TYPE_SHIFT 2 111 #define IEEE80211_FC0_TYPE_MGT 0x00 112 #define IEEE80211_FC0_TYPE_CTL 0x04 113 #define IEEE80211_FC0_TYPE_DATA 0x08 114 115 #define IEEE80211_FC0_SUBTYPE_MASK 0xf0 116 #define IEEE80211_FC0_SUBTYPE_SHIFT 4 117 /* for TYPE_MGT */ 118 #define IEEE80211_FC0_SUBTYPE_ASSOC_REQ 0x00 119 #define IEEE80211_FC0_SUBTYPE_ASSOC_RESP 0x10 120 #define IEEE80211_FC0_SUBTYPE_REASSOC_REQ 0x20 121 #define IEEE80211_FC0_SUBTYPE_REASSOC_RESP 0x30 122 #define IEEE80211_FC0_SUBTYPE_PROBE_REQ 0x40 123 #define IEEE80211_FC0_SUBTYPE_PROBE_RESP 0x50 124 #define IEEE80211_FC0_SUBTYPE_BEACON 0x80 125 #define IEEE80211_FC0_SUBTYPE_ATIM 0x90 126 #define IEEE80211_FC0_SUBTYPE_DISASSOC 0xa0 127 #define IEEE80211_FC0_SUBTYPE_AUTH 0xb0 128 #define IEEE80211_FC0_SUBTYPE_DEAUTH 0xc0 129 #define IEEE80211_FC0_SUBTYPE_ACTION 0xd0 130 #define IEEE80211_FC0_SUBTYPE_ACTION_NOACK 0xe0 /* 11n */ 131 /* for TYPE_CTL */ 132 #define IEEE80211_FC0_SUBTYPE_WRAPPER 0x70 /* 11n */ 133 #define IEEE80211_FC0_SUBTYPE_BAR 0x80 134 #define IEEE80211_FC0_SUBTYPE_BA 0x90 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 151 152 #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_PROTECTED 0x40 163 #define IEEE80211_FC1_WEP 0x40 /* pre-RSNA compat */ 164 #define IEEE80211_FC1_ORDER 0x80 165 #define IEEE80211_FC1_BITS \ 166 "\20\03MORE_FRAG\04RETRY\05PWR_MGT\06MORE_DATA" \ 167 "\07PROTECTED\08ORDER" 168 169 /* 170 * Sequence Control field (see 7.1.3.4). 171 */ 172 #define IEEE80211_SEQ_FRAG_MASK 0x000f 173 #define IEEE80211_SEQ_FRAG_SHIFT 0 174 #define IEEE80211_SEQ_SEQ_MASK 0xfff0 175 #define IEEE80211_SEQ_SEQ_SHIFT 4 176 177 #define IEEE80211_NWID_LEN 32 178 #define IEEE80211_MMIE_LEN 18 /* 11w */ 179 180 /* 181 * QoS Control field (see 7.1.3.5). 182 */ 183 #define IEEE80211_QOS_TXOP 0xff00 184 #define IEEE80211_QOS_AMSDU 0x0080 /* 11n */ 185 #define IEEE80211_QOS_ACK_POLICY_NORMAL 0x0000 186 #define IEEE80211_QOS_ACK_POLICY_NOACK 0x0020 187 #define IEEE80211_QOS_ACK_POLICY_NOEXPLACK 0x0040 188 #define IEEE80211_QOS_ACK_POLICY_BA 0x0060 189 #define IEEE80211_QOS_ACK_POLICY_MASK 0x0060 190 #define IEEE80211_QOS_ACK_POLICY_SHIFT 5 191 #define IEEE80211_QOS_EOSP 0x0010 192 #define IEEE80211_QOS_TID 0x000f 193 194 /* 195 * Control frames. 196 */ 197 struct ieee80211_frame_min { 198 u_int8_t i_fc[2]; 199 u_int8_t i_dur[2]; 200 u_int8_t i_addr1[IEEE80211_ADDR_LEN]; 201 u_int8_t i_addr2[IEEE80211_ADDR_LEN]; 202 /* FCS */ 203 } __packed; 204 205 struct ieee80211_frame_rts { 206 u_int8_t i_fc[2]; 207 u_int8_t i_dur[2]; 208 u_int8_t i_ra[IEEE80211_ADDR_LEN]; 209 u_int8_t i_ta[IEEE80211_ADDR_LEN]; 210 /* FCS */ 211 } __packed; 212 213 struct ieee80211_frame_cts { 214 u_int8_t i_fc[2]; 215 u_int8_t i_dur[2]; 216 u_int8_t i_ra[IEEE80211_ADDR_LEN]; 217 /* FCS */ 218 } __packed; 219 220 struct ieee80211_frame_ack { 221 u_int8_t i_fc[2]; 222 u_int8_t i_dur[2]; 223 u_int8_t i_ra[IEEE80211_ADDR_LEN]; 224 /* FCS */ 225 } __packed; 226 227 struct ieee80211_frame_pspoll { 228 u_int8_t i_fc[2]; 229 u_int8_t i_aid[2]; 230 u_int8_t i_bssid[IEEE80211_ADDR_LEN]; 231 u_int8_t i_ta[IEEE80211_ADDR_LEN]; 232 /* FCS */ 233 } __packed; 234 235 struct ieee80211_frame_cfend { /* NB: also CF-End+CF-Ack */ 236 u_int8_t i_fc[2]; 237 u_int8_t i_dur[2]; /* should be zero */ 238 u_int8_t i_ra[IEEE80211_ADDR_LEN]; 239 u_int8_t i_bssid[IEEE80211_ADDR_LEN]; 240 /* FCS */ 241 } __packed; 242 243 #ifdef _KERNEL 244 static __inline int 245 ieee80211_has_seq(const struct ieee80211_frame *wh) 246 { 247 return (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != 248 IEEE80211_FC0_TYPE_CTL; 249 } 250 251 static __inline int 252 ieee80211_has_addr4(const struct ieee80211_frame *wh) 253 { 254 return (wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) == 255 IEEE80211_FC1_DIR_DSTODS; 256 } 257 258 static __inline int 259 ieee80211_has_qos(const struct ieee80211_frame *wh) 260 { 261 return (wh->i_fc[0] & 262 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == 263 (IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS); 264 } 265 266 static __inline int 267 ieee80211_has_htc(const struct ieee80211_frame *wh) 268 { 269 return (wh->i_fc[1] & IEEE80211_FC1_ORDER) && 270 (ieee80211_has_qos(wh) || 271 (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == 272 IEEE80211_FC0_TYPE_MGT); 273 } 274 275 static __inline u_int16_t 276 ieee80211_get_qos(const struct ieee80211_frame *wh) 277 { 278 const u_int8_t *frm; 279 280 if (ieee80211_has_addr4(wh)) 281 frm = ((const struct ieee80211_qosframe_addr4 *)wh)->i_qos; 282 else 283 frm = ((const struct ieee80211_qosframe *)wh)->i_qos; 284 285 return letoh16(*(const u_int16_t *)frm); 286 } 287 #endif /* _KERNEL */ 288 289 /* 290 * Capability Information field (see 7.3.1.4). 291 */ 292 #define IEEE80211_CAPINFO_ESS 0x0001 293 #define IEEE80211_CAPINFO_IBSS 0x0002 294 #define IEEE80211_CAPINFO_CF_POLLABLE 0x0004 295 #define IEEE80211_CAPINFO_CF_POLLREQ 0x0008 296 #define IEEE80211_CAPINFO_PRIVACY 0x0010 297 #define IEEE80211_CAPINFO_SHORT_PREAMBLE 0x0020 298 #define IEEE80211_CAPINFO_PBCC 0x0040 299 #define IEEE80211_CAPINFO_CHNL_AGILITY 0x0080 300 #define IEEE80211_CAPINFO_SPECTRUM_MGMT 0x0100 301 #define IEEE80211_CAPINFO_QOS 0x0200 302 #define IEEE80211_CAPINFO_SHORT_SLOTTIME 0x0400 303 #define IEEE80211_CAPINFO_APSD 0x0800 304 /* bit 12 is reserved */ 305 #define IEEE80211_CAPINFO_DSSSOFDM 0x2000 306 #define IEEE80211_CAPINFO_DELAYED_B_ACK 0x4000 307 #define IEEE80211_CAPINFO_IMMEDIATE_B_ACK 0x8000 308 #define IEEE80211_CAPINFO_BITS \ 309 "\10\01ESS\02IBSS\03CF_POLLABLE\04CF_POLLREQ" \ 310 "\05PRIVACY\06SHORT_PREAMBLE\07PBCC\10CHNL_AGILITY" \ 311 "\11SPECTRUM_MGMT\12QOS\13SHORT_SLOTTIME\14APSD" \ 312 "\16DSSSOFDM\17DELAYED_B_ACK\20IMMEDIATE_B_ACK" 313 314 /* 315 * Information elements (see Table 7-26). 316 */ 317 enum { 318 IEEE80211_ELEMID_SSID = 0, 319 IEEE80211_ELEMID_RATES = 1, 320 IEEE80211_ELEMID_FHPARMS = 2, 321 IEEE80211_ELEMID_DSPARMS = 3, 322 IEEE80211_ELEMID_CFPARMS = 4, 323 IEEE80211_ELEMID_TIM = 5, 324 IEEE80211_ELEMID_IBSSPARMS = 6, 325 IEEE80211_ELEMID_COUNTRY = 7, 326 IEEE80211_ELEMID_QBSS_LOAD = 11, 327 IEEE80211_ELEMID_EDCAPARMS = 12, 328 IEEE80211_ELEMID_CHALLENGE = 16, 329 /* 17-31 reserved for challenge text extension */ 330 IEEE80211_ELEMID_ERP = 42, 331 IEEE80211_ELEMID_HTCAPS = 45, /* 11n */ 332 IEEE80211_ELEMID_QOS_CAP = 46, 333 IEEE80211_ELEMID_RSN = 48, 334 IEEE80211_ELEMID_XRATES = 50, 335 IEEE80211_ELEMID_TIE = 56, /* 11r */ 336 IEEE80211_ELEMID_HTOP = 61, /* 11n */ 337 IEEE80211_ELEMID_MMIE = 76, /* 11w */ 338 IEEE80211_ELEMID_TPC = 150, 339 IEEE80211_ELEMID_CCKM = 156, 340 IEEE80211_ELEMID_VENDOR = 221 /* vendor private */ 341 }; 342 343 /* 344 * Action field category values (see Table 7-24). 345 */ 346 enum { 347 IEEE80211_CATEG_SPECTRUM = 0, 348 IEEE80211_CATEG_QOS = 1, 349 IEEE80211_CATEG_DLS = 2, 350 IEEE80211_CATEG_BA = 3, 351 IEEE80211_CATEG_HT = 7, /* 11n */ 352 IEEE80211_CATEG_SA_QUERY = 8 /* 11w */ 353 }; 354 355 /* 356 * Block Ack Action field values (see Table 7-54). 357 */ 358 #define IEEE80211_ACTION_ADDBA_REQ 0 359 #define IEEE80211_ACTION_ADDBA_RESP 1 360 #define IEEE80211_ACTION_DELBA 2 361 362 /* 363 * SA Query Action field values (see Table 7-57l). 364 */ 365 #define IEEE80211_ACTION_SA_QUERY_REQ 0 366 #define IEEE80211_ACTION_SA_QUERY_RESP 1 367 368 /* 369 * HT Action field values (see Table 7-57m). 370 */ 371 #define IEEE80211_ACTION_NOTIFYCW 0 372 373 #define IEEE80211_RATE_BASIC 0x80 374 #define IEEE80211_RATE_VAL 0x7f 375 #define IEEE80211_RATE_SIZE 8 /* 802.11 standard */ 376 #define IEEE80211_RATE_MAXSIZE 15 /* max rates we'll handle */ 377 378 /* 379 * BlockAck/BlockAckReq Control field (see Figure 7-13). 380 */ 381 #define IEEE80211_BA_ACK_POLICY 0x0001 382 #define IEEE80211_BA_MULTI_TID 0x0002 383 #define IEEE80211_BA_COMPRESSED 0x0004 384 #define IEEE80211_BA_TID_INFO_MASK 0xf000 385 #define IEEE80211_BA_TID_INFO_SHIFT 12 386 387 /* 388 * DELBA Parameter Set field (see Figure 7-34). 389 */ 390 #define IEEE80211_DELBA_INITIATOR 0x0800 391 392 /* 393 * ERP information element (see 7.3.2.13). 394 */ 395 #define IEEE80211_ERP_NON_ERP_PRESENT 0x01 396 #define IEEE80211_ERP_USE_PROTECTION 0x02 397 #define IEEE80211_ERP_BARKER_MODE 0x04 398 399 /* 400 * RSN capabilities (see 7.3.2.25.3). 401 */ 402 #define IEEE80211_RSNCAP_PREAUTH 0x0001 403 #define IEEE80211_RSNCAP_NOPAIRWISE 0x0002 404 #define IEEE80211_RSNCAP_PTKSA_RCNT_MASK 0x000c 405 #define IEEE80211_RSNCAP_PTKSA_RCNT_SHIFT 2 406 #define IEEE80211_RSNCAP_GTKSA_RCNT_MASK 0x0030 407 #define IEEE80211_RSNCAP_GTKSA_RCNT_SHIFT 4 408 #define IEEE80211_RSNCAP_RCNT1 0 409 #define IEEE80211_RSNCAP_RCNT2 1 410 #define IEEE80211_RSNCAP_RCNT4 2 411 #define IEEE80211_RSNCAP_RCNT16 3 412 #define IEEE80211_RSNCAP_MFPR 0x0040 /* 11w */ 413 #define IEEE80211_RSNCAP_MFPC 0x0080 /* 11w */ 414 #define IEEE80211_RSNCAP_PEERKEYENA 0x0200 415 #define IEEE80211_RSNCAP_SPPAMSDUC 0x0400 /* 11n */ 416 #define IEEE80211_RSNCAP_SPPAMSDUR 0x0800 /* 11n */ 417 #define IEEE80211_RSNCAP_PBAC 0x1000 /* 11n */ 418 419 /* 420 * HT Capabilities Info (see 7.3.2.57.2). 421 */ 422 #define IEEE80211_HTCAP_LDPC 0x00000001 423 #define IEEE80211_HTCAP_CBW20_40 0x00000002 424 #define IEEE80211_HTCAP_SMPS_MASK 0x0000000c 425 #define IEEE80211_HTCAP_SMPS_SHIFT 2 426 #define IEEE80211_HTCAP_SMPS_STA 0 427 #define IEEE80211_HTCAP_SMPS_DYN 1 428 #define IEEE80211_HTCAP_SMPS_DIS 3 429 #define IEEE80211_HTCAP_GF 0x00000010 430 #define IEEE80211_HTCAP_SGI20 0x00000020 431 #define IEEE80211_HTCAP_SGI40 0x00000040 432 #define IEEE80211_HTCAP_TXSTBC 0x00000080 433 #define IEEE80211_HTCAP_RXSTBC_MASK 0x00000300 434 #define IEEE80211_HTCAP_RXSTBC_SHIFT 8 435 #define IEEE80211_HTCAP_DELAYEDBA 0x00000400 436 #define IEEE80211_HTCAP_AMSDU7935 0x00000800 437 #define IEEE80211_HTCAP_DSSSCCK40 0x00001000 438 #define IEEE80211_HTCAP_PSMP 0x00002000 439 #define IEEE80211_HTCAP_40INTOLERANT 0x00004000 440 #define IEEE80211_HTCAP_LSIGTXOPPROT 0x00008000 441 442 /* 443 * HT Extended Capabilities (see 7.3.2.57.5). 444 */ 445 #define IEEE80211_HTXCAP_PCO 0x0001 446 #define IEEE80211_HTXCAP_PCOTT_MASK 0x0006 447 #define IEEE80211_HTXCAP_PCOTT_SHIFT 1 448 #define IEEE80211_HTXCAP_PCOTT_400 1 449 #define IEEE80211_HTXCAP_PCOTT_1500 2 450 #define IEEE80211_HTXCAP_PCOTT_5000 3 451 /* Bits 3-7 are reserved. */ 452 #define IEEE80211_HTXCAP_MFB_MASK 0x0300 453 #define IEEE80211_HTXCAP_MFB_SHIFT 8 454 #define IEEE80211_HTXCAP_MFB_NONE 0 455 #define IEEE80211_HTXCAP_MFB_UNSOL 2 456 #define IEEE80211_HTXCAP_MFB_BOTH 3 457 #define IEEE80211_HTXCAP_HTC 0x0400 458 #define IEEE80211_HTXCAP_RDRESP 0x0800 459 /* Bits 12-15 are reserved. */ 460 461 /* 462 * Transmit Beamforming (TxBF) Capabilities (see 7.3.2.57.6). 463 */ 464 #define IEEE80211_TXBFCAP_IMPLICIT_RX 0x00000001 465 #define IEEE80211_TXBFCAP_RSSC 0x00000002 466 #define IEEE80211_TXBFCAP_TSSC 0x00000004 467 #define IEEE80211_TXBFCAP_RNDP 0x00000008 468 #define IEEE80211_TXBFCAP_TNDP 0x00000010 469 #define IEEE80211_TXBFCAP_IMPLICIT_TX 0x00000020 470 #define IEEE80211_TXBFCAP_CALIB_MASK 0x000000c0 471 #define IEEE80211_TXBFCAP_CALIB_SHIFT 6 472 #define IEEE80211_TXBFCAP_TX_CSI 0x00000100 473 474 /* 475 * Antenna Selection (ASEL) Capability (see 7.3.2.57.7). 476 */ 477 #define IEEE80211_ASELCAP_ASEL 0x01 478 #define IEEE80211_ASELCAP_CSIFB 0x02 479 /* Bit 7 is reserved. */ 480 481 /* 482 * HT Operation element (see 7.3.2.58). 483 */ 484 /* Byte 1. */ 485 #define IEEE80211_HTOP0_SCO_MASK 0x03 486 #define IEEE80211_HTOP0_SCO_SHIFT 0 487 #define IEEE80211_HTOP0_SCO_SCN 0 488 #define IEEE80211_HTOP0_SCO_SCA 1 489 #define IEEE80211_HTOP0_SCO_SCB 3 490 #define IEEE80211_HTOP0_CHW 0x04 491 #define IEEE80211_HTOP0_RIFS 0x08 492 #define IEEE80211_HTOP0_SPSMP 0x10 493 #define IEEE80211_HTOP0_SIG_MASK 0xe0 494 #define IEEE80211_HTOP0_SIG_SHIFT 5 495 /* Bytes 2-3. */ 496 #define IEEE80211_HTOP1_PROT_MASK 0x0003 497 #define IEEE80211_HTOP1_PROT_SHIFT 0 498 #define IEEE80211_HTOP1_NONGTSTA 0x0004 499 /* Bit 3 is reserved. */ 500 #define IEEE80211_HTOP1_OBSS_NONHTSTA 0x0010 501 /* Bits 5-15 are reserved. */ 502 /* Bytes 4-5. */ 503 /* Bits 0-5 are reserved. */ 504 #define IEEE80211_HTOP2_DUALBEACON 0x0040 505 #define IEEE80211_HTOP2_DUALCTSPROT 0x0080 506 #define IEEE80211_HTOP2_STBCBEACON 0x0100 507 #define IEEE80211_HTOP2_LSIGTXOP 0x0200 508 #define IEEE80211_HTOP2_PCOACTIVE 0x0400 509 #define IEEE80211_HTOP2_PCOPHASE40 0x0800 510 /* Bits 12-15 are reserved. */ 511 512 /* 513 * EDCA Access Categories. 514 */ 515 enum ieee80211_edca_ac { 516 EDCA_AC_BK = 1, /* Background */ 517 EDCA_AC_BE = 0, /* Best Effort */ 518 EDCA_AC_VI = 2, /* Video */ 519 EDCA_AC_VO = 3 /* Voice */ 520 }; 521 #define EDCA_NUM_AC 4 522 523 /* number of TID values (traffic identifier) */ 524 #define IEEE80211_NUM_TID 16 525 526 /* Atheros private advanced capabilities info */ 527 #define ATHEROS_CAP_TURBO_PRIME 0x01 528 #define ATHEROS_CAP_COMPRESSION 0x02 529 #define ATHEROS_CAP_FAST_FRAME 0x04 530 /* bits 3-6 reserved */ 531 #define ATHEROS_CAP_BOOST 0x80 532 533 /*- 534 * Organizationally Unique Identifiers. 535 * See http://standards.ieee.org/regauth/oui/oui.txt for a list. 536 */ 537 #define ATHEROS_OUI ((const u_int8_t[]){ 0x00, 0x03, 0x7f }) 538 #define BROADCOM_OUI ((const u_int8_t[]){ 0x00, 0x90, 0x4c }) 539 #define IEEE80211_OUI ((const u_int8_t[]){ 0x00, 0x0f, 0xac }) 540 #define MICROSOFT_OUI ((const u_int8_t[]){ 0x00, 0x50, 0xf2 }) 541 542 #define IEEE80211_AUTH_ALGORITHM(auth) \ 543 ((auth)[0] | ((auth)[1] << 8)) 544 #define IEEE80211_AUTH_TRANSACTION(auth) \ 545 ((auth)[2] | ((auth)[3] << 8)) 546 #define IEEE80211_AUTH_STATUS(auth) \ 547 ((auth)[4] | ((auth)[5] << 8)) 548 549 /* 550 * Authentication Algorithm Number field (see 7.3.1.1). 551 */ 552 #define IEEE80211_AUTH_ALG_OPEN 0x0000 553 #define IEEE80211_AUTH_ALG_SHARED 0x0001 554 #define IEEE80211_AUTH_ALG_LEAP 0x0080 555 556 /* 557 * Authentication Transaction Sequence Number field (see 7.3.1.2). 558 */ 559 enum { 560 IEEE80211_AUTH_OPEN_REQUEST = 1, 561 IEEE80211_AUTH_OPEN_RESPONSE = 2 562 }; 563 enum { 564 IEEE80211_AUTH_SHARED_REQUEST = 1, 565 IEEE80211_AUTH_SHARED_CHALLENGE = 2, 566 IEEE80211_AUTH_SHARED_RESPONSE = 3, 567 IEEE80211_AUTH_SHARED_PASS = 4 568 }; 569 570 /* 571 * Reason codes (see Table 22). 572 */ 573 enum { 574 IEEE80211_REASON_UNSPECIFIED = 1, 575 IEEE80211_REASON_AUTH_EXPIRE = 2, 576 IEEE80211_REASON_AUTH_LEAVE = 3, 577 IEEE80211_REASON_ASSOC_EXPIRE = 4, 578 IEEE80211_REASON_ASSOC_TOOMANY = 5, 579 IEEE80211_REASON_NOT_AUTHED = 6, 580 IEEE80211_REASON_NOT_ASSOCED = 7, 581 IEEE80211_REASON_ASSOC_LEAVE = 8, 582 IEEE80211_REASON_ASSOC_NOT_AUTHED = 9, 583 584 /* XXX the following two reason codes are not correct */ 585 IEEE80211_REASON_RSN_REQUIRED = 11, 586 IEEE80211_REASON_RSN_INCONSISTENT = 12, 587 588 IEEE80211_REASON_IE_INVALID = 13, 589 IEEE80211_REASON_MIC_FAILURE = 14, 590 IEEE80211_REASON_4WAY_TIMEOUT = 15, 591 IEEE80211_REASON_GROUP_TIMEOUT = 16, 592 IEEE80211_REASON_RSN_DIFFERENT_IE = 17, 593 IEEE80211_REASON_BAD_GROUP_CIPHER = 18, 594 IEEE80211_REASON_BAD_PAIRWISE_CIPHER = 19, 595 IEEE80211_REASON_BAD_AKMP = 20, 596 IEEE80211_REASON_RSN_IE_VER_UNSUP = 21, 597 IEEE80211_REASON_RSN_IE_BAD_CAP = 22, 598 599 IEEE80211_REASON_CIPHER_REJ_POLICY = 24, 600 601 IEEE80211_REASON_SETUP_REQUIRED = 38, 602 IEEE80211_REASON_TIMEOUT = 39 603 }; 604 605 /* 606 * Status codes (see Table 23). 607 */ 608 enum { 609 IEEE80211_STATUS_SUCCESS = 0, 610 IEEE80211_STATUS_UNSPECIFIED = 1, 611 IEEE80211_STATUS_CAPINFO = 10, 612 IEEE80211_STATUS_NOT_ASSOCED = 11, 613 IEEE80211_STATUS_OTHER = 12, 614 IEEE80211_STATUS_ALG = 13, 615 IEEE80211_STATUS_SEQUENCE = 14, 616 IEEE80211_STATUS_CHALLENGE = 15, 617 IEEE80211_STATUS_TIMEOUT = 16, 618 IEEE80211_STATUS_TOOMANY = 17, 619 IEEE80211_STATUS_BASIC_RATE = 18, 620 IEEE80211_STATUS_SP_REQUIRED = 19, 621 IEEE80211_STATUS_PBCC_REQUIRED = 20, 622 IEEE80211_STATUS_CA_REQUIRED = 21, 623 IEEE80211_STATUS_TOO_MANY_STATIONS = 22, 624 IEEE80211_STATUS_RATES = 23, 625 IEEE80211_STATUS_SHORTSLOT_REQUIRED = 25, 626 IEEE80211_STATUS_DSSSOFDM_REQUIRED = 26, 627 628 IEEE80211_STATUS_TRY_AGAIN_LATER = 30, 629 IEEE80211_STATUS_MFP_POLICY = 31, 630 631 IEEE80211_STATUS_REFUSED = 37, 632 IEEE80211_STATUS_INVALID_PARAM = 38, 633 634 IEEE80211_STATUS_IE_INVALID = 40, 635 IEEE80211_STATUS_BAD_GROUP_CIPHER = 41, 636 IEEE80211_STATUS_BAD_PAIRWISE_CIPHER = 42, 637 IEEE80211_STATUS_BAD_AKMP = 43, 638 IEEE80211_STATUS_RSN_IE_VER_UNSUP = 44, 639 640 IEEE80211_STATUS_CIPHER_REJ_POLICY = 46, 641 }; 642 643 #define IEEE80211_WEP_KEYLEN 5 /* 40bit */ 644 #define IEEE80211_WEP_NKID 4 /* number of key ids */ 645 #define IEEE80211_CHALLENGE_LEN 128 646 647 /* WEP header constants */ 648 #define IEEE80211_WEP_IVLEN 3 /* 24bit */ 649 #define IEEE80211_WEP_KIDLEN 1 /* 1 octet */ 650 #define IEEE80211_WEP_CRCLEN 4 /* CRC-32 */ 651 #define IEEE80211_CRC_LEN 4 652 #define IEEE80211_WEP_TOTLEN (IEEE80211_WEP_IVLEN + \ 653 IEEE80211_WEP_KIDLEN + \ 654 IEEE80211_WEP_CRCLEN) 655 656 /* 657 * 802.11i defines an extended IV for use with non-WEP ciphers. 658 * When the EXTIV bit is set in the key id byte an additional 659 * 4 bytes immediately follow the IV for TKIP. For CCMP the 660 * EXTIV bit is likewise set but the 8 bytes represent the 661 * CCMP header rather than IV+extended-IV. 662 */ 663 #define IEEE80211_WEP_EXTIV 0x20 664 #define IEEE80211_WEP_EXTIVLEN 4 /* extended IV length */ 665 #define IEEE80211_WEP_MICLEN 8 /* trailing MIC */ 666 667 /* 668 * Maximum acceptable MTU is: 669 * IEEE80211_MAX_LEN - WEP overhead - CRC - 670 * QoS overhead - RSN/WPA overhead 671 * Min is arbitrarily chosen > IEEE80211_MIN_LEN. The default 672 * mtu is Ethernet-compatible; it's set by ether_ifattach. 673 */ 674 #define IEEE80211_MTU_MAX 2290 675 #define IEEE80211_MTU_MIN 32 676 677 #define IEEE80211_MAX_LEN (2300 + IEEE80211_CRC_LEN + \ 678 (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN)) 679 #define IEEE80211_ACK_LEN \ 680 (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN) 681 #define IEEE80211_MIN_LEN \ 682 (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN) 683 684 /* 685 * The 802.11 spec says at most 2007 stations may be 686 * associated at once. For most AP's this is way more 687 * than is feasible so we use a default of 1800. This 688 * number may be overridden by the driver and/or by 689 * user configuration. 690 */ 691 #define IEEE80211_AID_MAX 2007 692 #define IEEE80211_AID_DEF 1800 693 #define IEEE80211_AID(b) ((b) &~ 0xc000) 694 695 /* 696 * RTS frame length parameters. The default is specified in 697 * the 802.11 spec. The max may be wrong for jumbo frames. 698 */ 699 #define IEEE80211_RTS_DEFAULT 512 700 #define IEEE80211_RTS_MIN 1 701 #define IEEE80211_RTS_MAX IEEE80211_MAX_LEN 702 703 #define IEEE80211_PLCP_SERVICE 0x00 704 #define IEEE80211_PLCP_SERVICE_PBCC 0x08 /* PBCC encoded */ 705 #define IEEE80211_PLCP_SERVICE_LENEXT 0x80 /* length extension bit */ 706 707 /* One Time Unit (TU) is 1Kus = 1024 microseconds. */ 708 #define IEEE80211_DUR_TU 1024 709 710 /* IEEE 802.11b durations for DSSS PHY in microseconds */ 711 #define IEEE80211_DUR_DS_LONG_PREAMBLE 144 712 #define IEEE80211_DUR_DS_SHORT_PREAMBLE 72 713 #define IEEE80211_DUR_DS_PREAMBLE_DIFFERENCE \ 714 (IEEE80211_DUR_DS_LONG_PREAMBLE - IEEE80211_DUR_DS_SHORT_PREAMBLE) 715 #define IEEE80211_DUR_DS_FAST_PLCPHDR 24 716 #define IEEE80211_DUR_DS_SLOW_PLCPHDR 48 717 #define IEEE80211_DUR_DS_PLCPHDR_DIFFERENCE \ 718 (IEEE80211_DUR_DS_SLOW_PLCPHDR - IEEE80211_DUR_DS_FAST_PLCPHDR) 719 #define IEEE80211_DUR_DS_SLOW_ACK 112 720 #define IEEE80211_DUR_DS_FAST_ACK 56 721 #define IEEE80211_DUR_DS_SLOW_CTS 112 722 #define IEEE80211_DUR_DS_FAST_CTS 56 723 #define IEEE80211_DUR_DS_SLOT 20 724 #define IEEE80211_DUR_DS_SIFS 10 725 #define IEEE80211_DUR_DS_PIFS (IEEE80211_DUR_DS_SIFS + IEEE80211_DUR_DS_SLOT) 726 #define IEEE80211_DUR_DS_DIFS (IEEE80211_DUR_DS_SIFS + \ 727 2 * IEEE80211_DUR_DS_SLOT) 728 #define IEEE80211_DUR_DS_EIFS (IEEE80211_DUR_DS_SIFS + \ 729 IEEE80211_DUR_DS_SLOW_ACK + \ 730 IEEE80211_DUR_DS_LONG_PREAMBLE + \ 731 IEEE80211_DUR_DS_SLOW_PLCPHDR + \ 732 IEEE80211_DUR_DIFS) 733 734 /* 735 * The RSNA key descriptor used by IEEE 802.11 does not use the IEEE 802.1X 736 * key descriptor. Instead, it uses the key descriptor described in 8.5.2. 737 */ 738 #define EAPOL_KEY_NONCE_LEN 32 739 #define EAPOL_KEY_IV_LEN 16 740 #define EAPOL_KEY_MIC_LEN 16 741 742 struct ieee80211_eapol_key { 743 u_int8_t version; 744 #define EAPOL_VERSION 1 745 746 u_int8_t type; 747 /* IEEE Std 802.1X-2004, 7.5.4 (only type EAPOL-Key is used here) */ 748 #define EAP_PACKET 0 749 #define EAPOL_START 1 750 #define EAPOL_LOGOFF 2 751 #define EAPOL_KEY 3 752 #define EAPOL_ASF_ALERT 4 753 754 u_int8_t len[2]; 755 u_int8_t desc; 756 /* IEEE Std 802.1X-2004, 7.6.1 */ 757 #define EAPOL_KEY_DESC_RC4 1 /* deprecated */ 758 #define EAPOL_KEY_DESC_IEEE80211 2 759 #define EAPOL_KEY_DESC_WPA 254 /* non-standard WPA */ 760 761 u_int8_t info[2]; 762 #define EAPOL_KEY_VERSION_MASK 0x7 763 #define EAPOL_KEY_DESC_V1 1 764 #define EAPOL_KEY_DESC_V2 2 765 #define EAPOL_KEY_DESC_V3 3 /* 11r */ 766 #define EAPOL_KEY_PAIRWISE (1 << 3) 767 #define EAPOL_KEY_INSTALL (1 << 6) /* I */ 768 #define EAPOL_KEY_KEYACK (1 << 7) /* A */ 769 #define EAPOL_KEY_KEYMIC (1 << 8) /* M */ 770 #define EAPOL_KEY_SECURE (1 << 9) /* S */ 771 #define EAPOL_KEY_ERROR (1 << 10) 772 #define EAPOL_KEY_REQUEST (1 << 11) 773 #define EAPOL_KEY_ENCRYPTED (1 << 12) 774 #define EAPOL_KEY_SMK (1 << 13) 775 /* WPA compatibility */ 776 #define EAPOL_KEY_WPA_KID_MASK 0x3 777 #define EAPOL_KEY_WPA_KID_SHIFT 4 778 #define EAPOL_KEY_WPA_TX EAPOL_KEY_INSTALL 779 780 u_int8_t keylen[2]; 781 u_int8_t replaycnt[8]; 782 u_int8_t nonce[EAPOL_KEY_NONCE_LEN]; 783 u_int8_t iv[EAPOL_KEY_IV_LEN]; 784 u_int8_t rsc[8]; 785 u_int8_t reserved[8]; 786 u_int8_t mic[EAPOL_KEY_MIC_LEN]; 787 u_int8_t paylen[2]; 788 } __packed; 789 790 /* Pairwise Transient Key (see 8.5.1.2) */ 791 struct ieee80211_ptk { 792 u_int8_t kck[16]; /* Key Confirmation Key */ 793 u_int8_t kek[16]; /* Key Encryption Key */ 794 u_int8_t tk[32]; /* Temporal Key */ 795 } __packed; 796 797 #define IEEE80211_PMKID_LEN 16 798 #define IEEE80211_SMKID_LEN 16 799 800 /* 801 * Key Data Encapsulation (see Table 62). 802 */ 803 enum { 804 IEEE80211_KDE_GTK = 1, 805 IEEE80211_KDE_MACADDR = 3, 806 IEEE80211_KDE_PMKID = 4, 807 IEEE80211_KDE_SMK = 5, 808 IEEE80211_KDE_NONCE = 6, 809 IEEE80211_KDE_LIFETIME = 7, 810 IEEE80211_KDE_ERROR = 8, 811 IEEE80211_KDE_IGTK = 9 /* 11w */ 812 }; 813 814 #endif /* _NET80211_IEEE80211_H_ */ 815