1 /* $OpenBSD: ieee80211.h,v 1.49 2009/01/28 18:55:18 damien 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 165 166 /* 167 * Sequence Control field (see 7.1.3.4). 168 */ 169 #define IEEE80211_SEQ_FRAG_MASK 0x000f 170 #define IEEE80211_SEQ_FRAG_SHIFT 0 171 #define IEEE80211_SEQ_SEQ_MASK 0xfff0 172 #define IEEE80211_SEQ_SEQ_SHIFT 4 173 174 #define IEEE80211_NWID_LEN 32 175 #define IEEE80211_MMIE_LEN 18 /* 11w */ 176 177 /* 178 * QoS Control field (see 7.1.3.5). 179 */ 180 #define IEEE80211_QOS_TXOP 0xff00 181 #define IEEE80211_QOS_AMSDU 0x0080 /* 11n */ 182 #define IEEE80211_QOS_ACK_POLICY_NORMAL 0x0000 183 #define IEEE80211_QOS_ACK_POLICY_NOACK 0x0020 184 #define IEEE80211_QOS_ACK_POLICY_NOEXPLACK 0x0040 185 #define IEEE80211_QOS_ACK_POLICY_BA 0x0060 186 #define IEEE80211_QOS_ACK_POLICY_MASK 0x0060 187 #define IEEE80211_QOS_ACK_POLICY_SHIFT 5 188 #define IEEE80211_QOS_EOSP 0x0010 189 #define IEEE80211_QOS_TID 0x000f 190 191 /* 192 * Control frames. 193 */ 194 struct ieee80211_frame_min { 195 u_int8_t i_fc[2]; 196 u_int8_t i_dur[2]; 197 u_int8_t i_addr1[IEEE80211_ADDR_LEN]; 198 u_int8_t i_addr2[IEEE80211_ADDR_LEN]; 199 /* FCS */ 200 } __packed; 201 202 struct ieee80211_frame_rts { 203 u_int8_t i_fc[2]; 204 u_int8_t i_dur[2]; 205 u_int8_t i_ra[IEEE80211_ADDR_LEN]; 206 u_int8_t i_ta[IEEE80211_ADDR_LEN]; 207 /* FCS */ 208 } __packed; 209 210 struct ieee80211_frame_cts { 211 u_int8_t i_fc[2]; 212 u_int8_t i_dur[2]; 213 u_int8_t i_ra[IEEE80211_ADDR_LEN]; 214 /* FCS */ 215 } __packed; 216 217 struct ieee80211_frame_ack { 218 u_int8_t i_fc[2]; 219 u_int8_t i_dur[2]; 220 u_int8_t i_ra[IEEE80211_ADDR_LEN]; 221 /* FCS */ 222 } __packed; 223 224 struct ieee80211_frame_pspoll { 225 u_int8_t i_fc[2]; 226 u_int8_t i_aid[2]; 227 u_int8_t i_bssid[IEEE80211_ADDR_LEN]; 228 u_int8_t i_ta[IEEE80211_ADDR_LEN]; 229 /* FCS */ 230 } __packed; 231 232 struct ieee80211_frame_cfend { /* NB: also CF-End+CF-Ack */ 233 u_int8_t i_fc[2]; 234 u_int8_t i_dur[2]; /* should be zero */ 235 u_int8_t i_ra[IEEE80211_ADDR_LEN]; 236 u_int8_t i_bssid[IEEE80211_ADDR_LEN]; 237 /* FCS */ 238 } __packed; 239 240 #ifdef _KERNEL 241 static __inline int 242 ieee80211_has_seq(const struct ieee80211_frame *wh) 243 { 244 return (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) != 245 IEEE80211_FC0_TYPE_CTL; 246 } 247 248 static __inline int 249 ieee80211_has_addr4(const struct ieee80211_frame *wh) 250 { 251 return (wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) == 252 IEEE80211_FC1_DIR_DSTODS; 253 } 254 255 static __inline int 256 ieee80211_has_qos(const struct ieee80211_frame *wh) 257 { 258 return (wh->i_fc[0] & 259 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == 260 (IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS); 261 } 262 263 static __inline int 264 ieee80211_has_htc(const struct ieee80211_frame *wh) 265 { 266 return (wh->i_fc[1] & IEEE80211_FC1_ORDER) && 267 (ieee80211_has_qos(wh) || 268 (wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == 269 IEEE80211_FC0_TYPE_MGT); 270 } 271 272 static __inline u_int16_t 273 ieee80211_get_qos(const struct ieee80211_frame *wh) 274 { 275 const u_int8_t *frm; 276 277 if (ieee80211_has_addr4(wh)) 278 frm = ((const struct ieee80211_qosframe_addr4 *)wh)->i_qos; 279 else 280 frm = ((const struct ieee80211_qosframe *)wh)->i_qos; 281 282 return letoh16(*(const u_int16_t *)frm); 283 } 284 #endif /* _KERNEL */ 285 286 /* 287 * Capability Information field (see 7.3.1.4). 288 */ 289 #define IEEE80211_CAPINFO_ESS 0x0001 290 #define IEEE80211_CAPINFO_IBSS 0x0002 291 #define IEEE80211_CAPINFO_CF_POLLABLE 0x0004 292 #define IEEE80211_CAPINFO_CF_POLLREQ 0x0008 293 #define IEEE80211_CAPINFO_PRIVACY 0x0010 294 #define IEEE80211_CAPINFO_SHORT_PREAMBLE 0x0020 295 #define IEEE80211_CAPINFO_PBCC 0x0040 296 #define IEEE80211_CAPINFO_CHNL_AGILITY 0x0080 297 #define IEEE80211_CAPINFO_SPECTRUM_MGMT 0x0100 298 #define IEEE80211_CAPINFO_QOS 0x0200 299 #define IEEE80211_CAPINFO_SHORT_SLOTTIME 0x0400 300 #define IEEE80211_CAPINFO_APSD 0x0800 301 /* bit 12 is reserved */ 302 #define IEEE80211_CAPINFO_DSSSOFDM 0x2000 303 #define IEEE80211_CAPINFO_DELAYED_B_ACK 0x4000 304 #define IEEE80211_CAPINFO_IMMEDIATE_B_ACK 0x8000 305 #define IEEE80211_CAPINFO_BITS \ 306 "\10\01ESS\02IBSS\03CF_POLLABLE\04CF_POLLREQ" \ 307 "\05PRIVACY\06SHORT_PREAMBLE\07PBCC\10CHNL_AGILITY" \ 308 "\11SPECTRUM_MGMT\12QOS\13SHORT_SLOTTIME\14APSD" \ 309 "\16DSSSOFDM\17DELAYED_B_ACK\20IMMEDIATE_B_ACK" 310 311 /* 312 * Information elements (see Table 7-26). 313 */ 314 enum { 315 IEEE80211_ELEMID_SSID = 0, 316 IEEE80211_ELEMID_RATES = 1, 317 IEEE80211_ELEMID_FHPARMS = 2, 318 IEEE80211_ELEMID_DSPARMS = 3, 319 IEEE80211_ELEMID_CFPARMS = 4, 320 IEEE80211_ELEMID_TIM = 5, 321 IEEE80211_ELEMID_IBSSPARMS = 6, 322 IEEE80211_ELEMID_COUNTRY = 7, 323 IEEE80211_ELEMID_QBSS_LOAD = 11, 324 IEEE80211_ELEMID_EDCAPARMS = 12, 325 IEEE80211_ELEMID_CHALLENGE = 16, 326 /* 17-31 reserved for challenge text extension */ 327 IEEE80211_ELEMID_ERP = 42, 328 IEEE80211_ELEMID_HTCAPS = 45, /* 11n */ 329 IEEE80211_ELEMID_QOS_CAP = 46, 330 IEEE80211_ELEMID_RSN = 48, 331 IEEE80211_ELEMID_XRATES = 50, 332 IEEE80211_ELEMID_TIE = 56, /* 11r */ 333 IEEE80211_ELEMID_HTOP = 61, /* 11n */ 334 IEEE80211_ELEMID_MMIE = 76, /* 11w */ 335 IEEE80211_ELEMID_TPC = 150, 336 IEEE80211_ELEMID_CCKM = 156, 337 IEEE80211_ELEMID_VENDOR = 221 /* vendor private */ 338 }; 339 340 /* 341 * Action field category values (see Table 7-24). 342 */ 343 enum { 344 IEEE80211_CATEG_SPECTRUM = 0, 345 IEEE80211_CATEG_QOS = 1, 346 IEEE80211_CATEG_DLS = 2, 347 IEEE80211_CATEG_BA = 3, 348 IEEE80211_CATEG_HT = 7, /* 11n */ 349 IEEE80211_CATEG_SA_QUERY = 8 /* 11w */ 350 }; 351 352 /* 353 * Block Ack Action field values (see Table 7-54). 354 */ 355 #define IEEE80211_ACTION_ADDBA_REQ 0 356 #define IEEE80211_ACTION_ADDBA_RESP 1 357 #define IEEE80211_ACTION_DELBA 2 358 359 /* 360 * SA Query Action field values (see Table 7-57l). 361 */ 362 #define IEEE80211_ACTION_SA_QUERY_REQ 0 363 #define IEEE80211_ACTION_SA_QUERY_RESP 1 364 365 /* 366 * HT Action field values (see Table 7-57m). 367 */ 368 #define IEEE80211_ACTION_NOTIFYCW 0 369 370 #define IEEE80211_RATE_BASIC 0x80 371 #define IEEE80211_RATE_VAL 0x7f 372 #define IEEE80211_RATE_SIZE 8 /* 802.11 standard */ 373 #define IEEE80211_RATE_MAXSIZE 15 /* max rates we'll handle */ 374 375 /* 376 * BlockAck/BlockAckReq Control field (see Figure 7-13). 377 */ 378 #define IEEE80211_BA_ACK_POLICY 0x0001 379 #define IEEE80211_BA_MULTI_TID 0x0002 380 #define IEEE80211_BA_COMPRESSED 0x0004 381 #define IEEE80211_BA_TID_INFO_MASK 0xf000 382 #define IEEE80211_BA_TID_INFO_SHIFT 12 383 384 /* 385 * DELBA Parameter Set field (see Figure 7-34). 386 */ 387 #define IEEE80211_DELBA_INITIATOR 0x0800 388 389 /* 390 * ERP information element (see 7.3.2.13). 391 */ 392 #define IEEE80211_ERP_NON_ERP_PRESENT 0x01 393 #define IEEE80211_ERP_USE_PROTECTION 0x02 394 #define IEEE80211_ERP_BARKER_MODE 0x04 395 396 /* 397 * RSN capabilities (see 7.3.2.25.3). 398 */ 399 #define IEEE80211_RSNCAP_PREAUTH 0x0001 400 #define IEEE80211_RSNCAP_NOPAIRWISE 0x0002 401 #define IEEE80211_RSNCAP_PTKSA_RCNT_MASK 0x000c 402 #define IEEE80211_RSNCAP_PTKSA_RCNT_SHIFT 2 403 #define IEEE80211_RSNCAP_GTKSA_RCNT_MASK 0x0030 404 #define IEEE80211_RSNCAP_GTKSA_RCNT_SHIFT 4 405 #define IEEE80211_RSNCAP_RCNT1 0 406 #define IEEE80211_RSNCAP_RCNT2 1 407 #define IEEE80211_RSNCAP_RCNT4 2 408 #define IEEE80211_RSNCAP_RCNT16 3 409 #define IEEE80211_RSNCAP_MFPR 0x0040 /* 11w */ 410 #define IEEE80211_RSNCAP_MFPC 0x0080 /* 11w */ 411 #define IEEE80211_RSNCAP_PEERKEYENA 0x0200 412 #define IEEE80211_RSNCAP_SPPAMSDUC 0x0400 /* 11n */ 413 #define IEEE80211_RSNCAP_SPPAMSDUR 0x0800 /* 11n */ 414 #define IEEE80211_RSNCAP_PBAC 0x1000 /* 11n */ 415 416 /* 417 * HT Capabilities Info (see 7.3.2.57.2). 418 */ 419 #define IEEE80211_HTCAP_LDPC 0x00000001 420 #define IEEE80211_HTCAP_CBW20_40 0x00000002 421 #define IEEE80211_HTCAP_SMPS_MASK 0x0000000c 422 #define IEEE80211_HTCAP_SMPS_SHIFT 2 423 #define IEEE80211_HTCAP_SMPS_STA 0 424 #define IEEE80211_HTCAP_SMPS_DYN 1 425 #define IEEE80211_HTCAP_SMPS_DIS 3 426 #define IEEE80211_HTCAP_GF 0x00000010 427 #define IEEE80211_HTCAP_SGI20 0x00000020 428 #define IEEE80211_HTCAP_SGI40 0x00000040 429 #define IEEE80211_HTCAP_TXSTBC 0x00000080 430 #define IEEE80211_HTCAP_RXSTBC_MASK 0x00000300 431 #define IEEE80211_HTCAP_RXSTBC_SHIFT 8 432 #define IEEE80211_HTCAP_DELAYEDBA 0x00000400 433 #define IEEE80211_HTCAP_AMSDU7935 0x00000800 434 #define IEEE80211_HTCAP_DSSSCCK40 0x00001000 435 #define IEEE80211_HTCAP_PSMP 0x00002000 436 #define IEEE80211_HTCAP_40INTOLERANT 0x00004000 437 #define IEEE80211_HTCAP_LSIGTXOPPROT 0x00008000 438 439 /* 440 * HT Extended Capabilities (see 7.3.2.57.5). 441 */ 442 #define IEEE80211_HTXCAP_PCO 0x0001 443 #define IEEE80211_HTXCAP_PCOTT_MASK 0x0006 444 #define IEEE80211_HTXCAP_PCOTT_SHIFT 1 445 #define IEEE80211_HTXCAP_PCOTT_400 1 446 #define IEEE80211_HTXCAP_PCOTT_1500 2 447 #define IEEE80211_HTXCAP_PCOTT_5000 3 448 /* Bits 3-7 are reserved. */ 449 #define IEEE80211_HTXCAP_MFB_MASK 0x0300 450 #define IEEE80211_HTXCAP_MFB_SHIFT 8 451 #define IEEE80211_HTXCAP_MFB_NONE 0 452 #define IEEE80211_HTXCAP_MFB_UNSOL 2 453 #define IEEE80211_HTXCAP_MFB_BOTH 3 454 #define IEEE80211_HTXCAP_HTC 0x0400 455 #define IEEE80211_HTXCAP_RDRESP 0x0800 456 /* Bits 12-15 are reserved. */ 457 458 /* 459 * Transmit Beamforming (TxBF) Capabilities (see 7.3.2.57.6). 460 */ 461 #define IEEE80211_TXBFCAP_IMPLICIT_RX 0x00000001 462 #define IEEE80211_TXBFCAP_RSSC 0x00000002 463 #define IEEE80211_TXBFCAP_TSSC 0x00000004 464 #define IEEE80211_TXBFCAP_RNDP 0x00000008 465 #define IEEE80211_TXBFCAP_TNDP 0x00000010 466 #define IEEE80211_TXBFCAP_IMPLICIT_TX 0x00000020 467 #define IEEE80211_TXBFCAP_CALIB_MASK 0x000000c0 468 #define IEEE80211_TXBFCAP_CALIB_SHIFT 6 469 #define IEEE80211_TXBFCAP_TX_CSI 0x00000100 470 471 /* 472 * Antenna Selection (ASEL) Capability (see 7.3.2.57.7). 473 */ 474 #define IEEE80211_ASELCAP_ASEL 0x01 475 #define IEEE80211_ASELCAP_CSIFB 0x02 476 /* Bit 7 is reserved. */ 477 478 /* 479 * HT Operation element (see 7.3.2.58). 480 */ 481 /* Byte 1. */ 482 #define IEEE80211_HTOP0_SCO_MASK 0x03 483 #define IEEE80211_HTOP0_SCO_SHIFT 0 484 #define IEEE80211_HTOP0_SCO_SCN 0 485 #define IEEE80211_HTOP0_SCO_SCA 1 486 #define IEEE80211_HTOP0_SCO_SCB 3 487 #define IEEE80211_HTOP0_CHW 0x04 488 #define IEEE80211_HTOP0_RIFS 0x08 489 #define IEEE80211_HTOP0_SPSMP 0x10 490 #define IEEE80211_HTOP0_SIG_MASK 0xe0 491 #define IEEE80211_HTOP0_SIG_SHIFT 5 492 /* Bytes 2-3. */ 493 #define IEEE80211_HTOP1_PROT_MASK 0x0003 494 #define IEEE80211_HTOP1_PROT_SHIFT 0 495 #define IEEE80211_HTOP1_NONGTSTA 0x0004 496 /* Bit 3 is reserved. */ 497 #define IEEE80211_HTOP1_OBSS_NONHTSTA 0x0010 498 /* Bits 5-15 are reserved. */ 499 /* Bytes 4-5. */ 500 /* Bits 0-5 are reserved. */ 501 #define IEEE80211_HTOP2_DUALBEACON 0x0040 502 #define IEEE80211_HTOP2_DUALCTSPROT 0x0080 503 #define IEEE80211_HTOP2_STBCBEACON 0x0100 504 #define IEEE80211_HTOP2_LSIGTXOP 0x0200 505 #define IEEE80211_HTOP2_PCOACTIVE 0x0400 506 #define IEEE80211_HTOP2_PCOPHASE40 0x0800 507 /* Bits 12-15 are reserved. */ 508 509 /* 510 * EDCA Access Categories. 511 */ 512 enum ieee80211_edca_ac { 513 EDCA_AC_BK = 1, /* Background */ 514 EDCA_AC_BE = 0, /* Best Effort */ 515 EDCA_AC_VI = 2, /* Video */ 516 EDCA_AC_VO = 3 /* Voice */ 517 }; 518 #define EDCA_NUM_AC 4 519 520 /* number of TID values (traffic identifier) */ 521 #define IEEE80211_NUM_TID 16 522 523 /* Atheros private advanced capabilities info */ 524 #define ATHEROS_CAP_TURBO_PRIME 0x01 525 #define ATHEROS_CAP_COMPRESSION 0x02 526 #define ATHEROS_CAP_FAST_FRAME 0x04 527 /* bits 3-6 reserved */ 528 #define ATHEROS_CAP_BOOST 0x80 529 530 /*- 531 * Organizationally Unique Identifiers. 532 * See http://standards.ieee.org/regauth/oui/oui.txt for a list. 533 */ 534 #define ATHEROS_OUI ((const u_int8_t[]){ 0x00, 0x03, 0x7f }) 535 #define BROADCOM_OUI ((const u_int8_t[]){ 0x00, 0x90, 0x4c }) 536 #define IEEE80211_OUI ((const u_int8_t[]){ 0x00, 0x0f, 0xac }) 537 #define MICROSOFT_OUI ((const u_int8_t[]){ 0x00, 0x50, 0xf2 }) 538 539 #define IEEE80211_AUTH_ALGORITHM(auth) \ 540 ((auth)[0] | ((auth)[1] << 8)) 541 #define IEEE80211_AUTH_TRANSACTION(auth) \ 542 ((auth)[2] | ((auth)[3] << 8)) 543 #define IEEE80211_AUTH_STATUS(auth) \ 544 ((auth)[4] | ((auth)[5] << 8)) 545 546 /* 547 * Authentication Algorithm Number field (see 7.3.1.1). 548 */ 549 #define IEEE80211_AUTH_ALG_OPEN 0x0000 550 #define IEEE80211_AUTH_ALG_SHARED 0x0001 551 #define IEEE80211_AUTH_ALG_LEAP 0x0080 552 553 /* 554 * Authentication Transaction Sequence Number field (see 7.3.1.2). 555 */ 556 enum { 557 IEEE80211_AUTH_OPEN_REQUEST = 1, 558 IEEE80211_AUTH_OPEN_RESPONSE = 2 559 }; 560 enum { 561 IEEE80211_AUTH_SHARED_REQUEST = 1, 562 IEEE80211_AUTH_SHARED_CHALLENGE = 2, 563 IEEE80211_AUTH_SHARED_RESPONSE = 3, 564 IEEE80211_AUTH_SHARED_PASS = 4 565 }; 566 567 /* 568 * Reason codes (see Table 22). 569 */ 570 enum { 571 IEEE80211_REASON_UNSPECIFIED = 1, 572 IEEE80211_REASON_AUTH_EXPIRE = 2, 573 IEEE80211_REASON_AUTH_LEAVE = 3, 574 IEEE80211_REASON_ASSOC_EXPIRE = 4, 575 IEEE80211_REASON_ASSOC_TOOMANY = 5, 576 IEEE80211_REASON_NOT_AUTHED = 6, 577 IEEE80211_REASON_NOT_ASSOCED = 7, 578 IEEE80211_REASON_ASSOC_LEAVE = 8, 579 IEEE80211_REASON_ASSOC_NOT_AUTHED = 9, 580 581 /* XXX the following two reason codes are not correct */ 582 IEEE80211_REASON_RSN_REQUIRED = 11, 583 IEEE80211_REASON_RSN_INCONSISTENT = 12, 584 585 IEEE80211_REASON_IE_INVALID = 13, 586 IEEE80211_REASON_MIC_FAILURE = 14, 587 IEEE80211_REASON_4WAY_TIMEOUT = 15, 588 IEEE80211_REASON_GROUP_TIMEOUT = 16, 589 IEEE80211_REASON_RSN_DIFFERENT_IE = 17, 590 IEEE80211_REASON_BAD_GROUP_CIPHER = 18, 591 IEEE80211_REASON_BAD_PAIRWISE_CIPHER = 19, 592 IEEE80211_REASON_BAD_AKMP = 20, 593 IEEE80211_REASON_RSN_IE_VER_UNSUP = 21, 594 IEEE80211_REASON_RSN_IE_BAD_CAP = 22, 595 596 IEEE80211_REASON_CIPHER_REJ_POLICY = 24, 597 598 IEEE80211_REASON_SETUP_REQUIRED = 38, 599 IEEE80211_REASON_TIMEOUT = 39 600 }; 601 602 /* 603 * Status codes (see Table 23). 604 */ 605 enum { 606 IEEE80211_STATUS_SUCCESS = 0, 607 IEEE80211_STATUS_UNSPECIFIED = 1, 608 IEEE80211_STATUS_CAPINFO = 10, 609 IEEE80211_STATUS_NOT_ASSOCED = 11, 610 IEEE80211_STATUS_OTHER = 12, 611 IEEE80211_STATUS_ALG = 13, 612 IEEE80211_STATUS_SEQUENCE = 14, 613 IEEE80211_STATUS_CHALLENGE = 15, 614 IEEE80211_STATUS_TIMEOUT = 16, 615 IEEE80211_STATUS_TOOMANY = 17, 616 IEEE80211_STATUS_BASIC_RATE = 18, 617 IEEE80211_STATUS_SP_REQUIRED = 19, 618 IEEE80211_STATUS_PBCC_REQUIRED = 20, 619 IEEE80211_STATUS_CA_REQUIRED = 21, 620 IEEE80211_STATUS_TOO_MANY_STATIONS = 22, 621 IEEE80211_STATUS_RATES = 23, 622 IEEE80211_STATUS_SHORTSLOT_REQUIRED = 25, 623 IEEE80211_STATUS_DSSSOFDM_REQUIRED = 26, 624 625 IEEE80211_STATUS_TRY_AGAIN_LATER = 30, 626 IEEE80211_STATUS_MFP_POLICY = 31, 627 628 IEEE80211_STATUS_REFUSED = 37, 629 IEEE80211_STATUS_INVALID_PARAM = 38, 630 631 IEEE80211_STATUS_IE_INVALID = 40, 632 IEEE80211_STATUS_BAD_GROUP_CIPHER = 41, 633 IEEE80211_STATUS_BAD_PAIRWISE_CIPHER = 42, 634 IEEE80211_STATUS_BAD_AKMP = 43, 635 IEEE80211_STATUS_RSN_IE_VER_UNSUP = 44, 636 637 IEEE80211_STATUS_CIPHER_REJ_POLICY = 46, 638 }; 639 640 #define IEEE80211_WEP_KEYLEN 5 /* 40bit */ 641 #define IEEE80211_WEP_NKID 4 /* number of key ids */ 642 #define IEEE80211_CHALLENGE_LEN 128 643 644 /* WEP header constants */ 645 #define IEEE80211_WEP_IVLEN 3 /* 24bit */ 646 #define IEEE80211_WEP_KIDLEN 1 /* 1 octet */ 647 #define IEEE80211_WEP_CRCLEN 4 /* CRC-32 */ 648 #define IEEE80211_CRC_LEN 4 649 #define IEEE80211_WEP_TOTLEN (IEEE80211_WEP_IVLEN + \ 650 IEEE80211_WEP_KIDLEN + \ 651 IEEE80211_WEP_CRCLEN) 652 653 /* 654 * 802.11i defines an extended IV for use with non-WEP ciphers. 655 * When the EXTIV bit is set in the key id byte an additional 656 * 4 bytes immediately follow the IV for TKIP. For CCMP the 657 * EXTIV bit is likewise set but the 8 bytes represent the 658 * CCMP header rather than IV+extended-IV. 659 */ 660 #define IEEE80211_WEP_EXTIV 0x20 661 #define IEEE80211_WEP_EXTIVLEN 4 /* extended IV length */ 662 #define IEEE80211_WEP_MICLEN 8 /* trailing MIC */ 663 664 /* 665 * Maximum acceptable MTU is: 666 * IEEE80211_MAX_LEN - WEP overhead - CRC - 667 * QoS overhead - RSN/WPA overhead 668 * Min is arbitrarily chosen > IEEE80211_MIN_LEN. The default 669 * mtu is Ethernet-compatible; it's set by ether_ifattach. 670 */ 671 #define IEEE80211_MTU_MAX 2290 672 #define IEEE80211_MTU_MIN 32 673 674 #define IEEE80211_MAX_LEN (2300 + IEEE80211_CRC_LEN + \ 675 (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN)) 676 #define IEEE80211_ACK_LEN \ 677 (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN) 678 #define IEEE80211_MIN_LEN \ 679 (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN) 680 681 /* 682 * The 802.11 spec says at most 2007 stations may be 683 * associated at once. For most AP's this is way more 684 * than is feasible so we use a default of 1800. This 685 * number may be overridden by the driver and/or by 686 * user configuration. 687 */ 688 #define IEEE80211_AID_MAX 2007 689 #define IEEE80211_AID_DEF 1800 690 #define IEEE80211_AID(b) ((b) &~ 0xc000) 691 692 /* 693 * RTS frame length parameters. The default is specified in 694 * the 802.11 spec. The max may be wrong for jumbo frames. 695 */ 696 #define IEEE80211_RTS_DEFAULT 512 697 #define IEEE80211_RTS_MIN 1 698 #define IEEE80211_RTS_MAX IEEE80211_MAX_LEN 699 700 #define IEEE80211_PLCP_SERVICE 0x00 701 #define IEEE80211_PLCP_SERVICE_PBCC 0x08 /* PBCC encoded */ 702 #define IEEE80211_PLCP_SERVICE_LENEXT 0x80 /* length extension bit */ 703 704 /* One Time Unit (TU) is 1Kus = 1024 microseconds. */ 705 #define IEEE80211_DUR_TU 1024 706 707 /* IEEE 802.11b durations for DSSS PHY in microseconds */ 708 #define IEEE80211_DUR_DS_LONG_PREAMBLE 144 709 #define IEEE80211_DUR_DS_SHORT_PREAMBLE 72 710 #define IEEE80211_DUR_DS_PREAMBLE_DIFFERENCE \ 711 (IEEE80211_DUR_DS_LONG_PREAMBLE - IEEE80211_DUR_DS_SHORT_PREAMBLE) 712 #define IEEE80211_DUR_DS_FAST_PLCPHDR 24 713 #define IEEE80211_DUR_DS_SLOW_PLCPHDR 48 714 #define IEEE80211_DUR_DS_PLCPHDR_DIFFERENCE \ 715 (IEEE80211_DUR_DS_SLOW_PLCPHDR - IEEE80211_DUR_DS_FAST_PLCPHDR) 716 #define IEEE80211_DUR_DS_SLOW_ACK 112 717 #define IEEE80211_DUR_DS_FAST_ACK 56 718 #define IEEE80211_DUR_DS_SLOW_CTS 112 719 #define IEEE80211_DUR_DS_FAST_CTS 56 720 #define IEEE80211_DUR_DS_SLOT 20 721 #define IEEE80211_DUR_DS_SIFS 10 722 #define IEEE80211_DUR_DS_PIFS (IEEE80211_DUR_DS_SIFS + IEEE80211_DUR_DS_SLOT) 723 #define IEEE80211_DUR_DS_DIFS (IEEE80211_DUR_DS_SIFS + \ 724 2 * IEEE80211_DUR_DS_SLOT) 725 #define IEEE80211_DUR_DS_EIFS (IEEE80211_DUR_DS_SIFS + \ 726 IEEE80211_DUR_DS_SLOW_ACK + \ 727 IEEE80211_DUR_DS_LONG_PREAMBLE + \ 728 IEEE80211_DUR_DS_SLOW_PLCPHDR + \ 729 IEEE80211_DUR_DIFS) 730 731 /* 732 * The RSNA key descriptor used by IEEE 802.11 does not use the IEEE 802.1X 733 * key descriptor. Instead, it uses the key descriptor described in 8.5.2. 734 */ 735 #define EAPOL_KEY_NONCE_LEN 32 736 #define EAPOL_KEY_IV_LEN 16 737 #define EAPOL_KEY_MIC_LEN 16 738 739 struct ieee80211_eapol_key { 740 u_int8_t version; 741 #define EAPOL_VERSION 1 742 743 u_int8_t type; 744 /* IEEE Std 802.1X-2004, 7.5.4 (only type EAPOL-Key is used here) */ 745 #define EAP_PACKET 0 746 #define EAPOL_START 1 747 #define EAPOL_LOGOFF 2 748 #define EAPOL_KEY 3 749 #define EAPOL_ASF_ALERT 4 750 751 u_int8_t len[2]; 752 u_int8_t desc; 753 /* IEEE Std 802.1X-2004, 7.6.1 */ 754 #define EAPOL_KEY_DESC_RC4 1 /* deprecated */ 755 #define EAPOL_KEY_DESC_IEEE80211 2 756 #define EAPOL_KEY_DESC_WPA 254 /* non-standard WPA */ 757 758 u_int8_t info[2]; 759 #define EAPOL_KEY_VERSION_MASK 0x7 760 #define EAPOL_KEY_DESC_V1 1 761 #define EAPOL_KEY_DESC_V2 2 762 #define EAPOL_KEY_DESC_V3 3 /* 11r */ 763 #define EAPOL_KEY_PAIRWISE (1 << 3) 764 #define EAPOL_KEY_INSTALL (1 << 6) /* I */ 765 #define EAPOL_KEY_KEYACK (1 << 7) /* A */ 766 #define EAPOL_KEY_KEYMIC (1 << 8) /* M */ 767 #define EAPOL_KEY_SECURE (1 << 9) /* S */ 768 #define EAPOL_KEY_ERROR (1 << 10) 769 #define EAPOL_KEY_REQUEST (1 << 11) 770 #define EAPOL_KEY_ENCRYPTED (1 << 12) 771 #define EAPOL_KEY_SMK (1 << 13) 772 /* WPA compatibility */ 773 #define EAPOL_KEY_WPA_KID_MASK 0x3 774 #define EAPOL_KEY_WPA_KID_SHIFT 4 775 #define EAPOL_KEY_WPA_TX EAPOL_KEY_INSTALL 776 777 u_int8_t keylen[2]; 778 u_int8_t replaycnt[8]; 779 u_int8_t nonce[EAPOL_KEY_NONCE_LEN]; 780 u_int8_t iv[EAPOL_KEY_IV_LEN]; 781 u_int8_t rsc[8]; 782 u_int8_t reserved[8]; 783 u_int8_t mic[EAPOL_KEY_MIC_LEN]; 784 u_int8_t paylen[2]; 785 } __packed; 786 787 /* Pairwise Transient Key (see 8.5.1.2) */ 788 struct ieee80211_ptk { 789 u_int8_t kck[16]; /* Key Confirmation Key */ 790 u_int8_t kek[16]; /* Key Encryption Key */ 791 u_int8_t tk[32]; /* Temporal Key */ 792 } __packed; 793 794 #define IEEE80211_PMKID_LEN 16 795 #define IEEE80211_SMKID_LEN 16 796 797 /* 798 * Key Data Encapsulation (see Table 62). 799 */ 800 enum { 801 IEEE80211_KDE_GTK = 1, 802 IEEE80211_KDE_MACADDR = 3, 803 IEEE80211_KDE_PMKID = 4, 804 IEEE80211_KDE_SMK = 5, 805 IEEE80211_KDE_NONCE = 6, 806 IEEE80211_KDE_LIFETIME = 7, 807 IEEE80211_KDE_ERROR = 8, 808 IEEE80211_KDE_IGTK = 9 /* 11w */ 809 }; 810 811 #endif /* _NET80211_IEEE80211_H_ */ 812