1 /* 2 * IEEE 802.11 defines 3 * 4 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen 5 * <[email protected]> 6 * Copyright (c) 2002-2003, Jouni Malinen <[email protected]> 7 * Copyright (c) 2005, Devicescape Software, Inc. 8 * Copyright (c) 2006, Michael Wu <[email protected]> 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License version 2 as 12 * published by the Free Software Foundation. 13 */ 14 15 #ifndef LINUX_IEEE80211_H 16 #define LINUX_IEEE80211_H 17 18 #include <linux/types.h> 19 #include <asm/byteorder.h> 20 21 /* 22 * DS bit usage 23 * 24 * TA = transmitter address 25 * RA = receiver address 26 * DA = destination address 27 * SA = source address 28 * 29 * ToDS FromDS A1(RA) A2(TA) A3 A4 Use 30 * ----------------------------------------------------------------- 31 * 0 0 DA SA BSSID - IBSS/DLS 32 * 0 1 DA BSSID SA - AP -> STA 33 * 1 0 BSSID SA DA - AP <- STA 34 * 1 1 RA TA DA SA unspecified (WDS) 35 */ 36 37 #define FCS_LEN 4 38 39 #define IEEE80211_FCTL_VERS 0x0003 40 #define IEEE80211_FCTL_FTYPE 0x000c 41 #define IEEE80211_FCTL_STYPE 0x00f0 42 #define IEEE80211_FCTL_TODS 0x0100 43 #define IEEE80211_FCTL_FROMDS 0x0200 44 #define IEEE80211_FCTL_MOREFRAGS 0x0400 45 #define IEEE80211_FCTL_RETRY 0x0800 46 #define IEEE80211_FCTL_PM 0x1000 47 #define IEEE80211_FCTL_MOREDATA 0x2000 48 #define IEEE80211_FCTL_PROTECTED 0x4000 49 #define IEEE80211_FCTL_ORDER 0x8000 50 51 #define IEEE80211_SCTL_FRAG 0x000F 52 #define IEEE80211_SCTL_SEQ 0xFFF0 53 54 #define IEEE80211_FTYPE_MGMT 0x0000 55 #define IEEE80211_FTYPE_CTL 0x0004 56 #define IEEE80211_FTYPE_DATA 0x0008 57 58 /* management */ 59 #define IEEE80211_STYPE_ASSOC_REQ 0x0000 60 #define IEEE80211_STYPE_ASSOC_RESP 0x0010 61 #define IEEE80211_STYPE_REASSOC_REQ 0x0020 62 #define IEEE80211_STYPE_REASSOC_RESP 0x0030 63 #define IEEE80211_STYPE_PROBE_REQ 0x0040 64 #define IEEE80211_STYPE_PROBE_RESP 0x0050 65 #define IEEE80211_STYPE_BEACON 0x0080 66 #define IEEE80211_STYPE_ATIM 0x0090 67 #define IEEE80211_STYPE_DISASSOC 0x00A0 68 #define IEEE80211_STYPE_AUTH 0x00B0 69 #define IEEE80211_STYPE_DEAUTH 0x00C0 70 #define IEEE80211_STYPE_ACTION 0x00D0 71 72 /* control */ 73 #define IEEE80211_STYPE_BACK_REQ 0x0080 74 #define IEEE80211_STYPE_BACK 0x0090 75 #define IEEE80211_STYPE_PSPOLL 0x00A0 76 #define IEEE80211_STYPE_RTS 0x00B0 77 #define IEEE80211_STYPE_CTS 0x00C0 78 #define IEEE80211_STYPE_ACK 0x00D0 79 #define IEEE80211_STYPE_CFEND 0x00E0 80 #define IEEE80211_STYPE_CFENDACK 0x00F0 81 82 /* data */ 83 #define IEEE80211_STYPE_DATA 0x0000 84 #define IEEE80211_STYPE_DATA_CFACK 0x0010 85 #define IEEE80211_STYPE_DATA_CFPOLL 0x0020 86 #define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030 87 #define IEEE80211_STYPE_NULLFUNC 0x0040 88 #define IEEE80211_STYPE_CFACK 0x0050 89 #define IEEE80211_STYPE_CFPOLL 0x0060 90 #define IEEE80211_STYPE_CFACKPOLL 0x0070 91 #define IEEE80211_STYPE_QOS_DATA 0x0080 92 #define IEEE80211_STYPE_QOS_DATA_CFACK 0x0090 93 #define IEEE80211_STYPE_QOS_DATA_CFPOLL 0x00A0 94 #define IEEE80211_STYPE_QOS_DATA_CFACKPOLL 0x00B0 95 #define IEEE80211_STYPE_QOS_NULLFUNC 0x00C0 96 #define IEEE80211_STYPE_QOS_CFACK 0x00D0 97 #define IEEE80211_STYPE_QOS_CFPOLL 0x00E0 98 #define IEEE80211_STYPE_QOS_CFACKPOLL 0x00F0 99 100 101 /* miscellaneous IEEE 802.11 constants */ 102 #define IEEE80211_MAX_FRAG_THRESHOLD 2352 103 #define IEEE80211_MAX_RTS_THRESHOLD 2353 104 #define IEEE80211_MAX_AID 2007 105 #define IEEE80211_MAX_TIM_LEN 251 106 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section 107 6.2.1.1.2. 108 109 802.11e clarifies the figure in section 7.1.2. The frame body is 110 up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */ 111 #define IEEE80211_MAX_DATA_LEN 2304 112 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */ 113 #define IEEE80211_MAX_FRAME_LEN 2352 114 115 #define IEEE80211_MAX_SSID_LEN 32 116 117 #define IEEE80211_MAX_MESH_ID_LEN 32 118 119 #define IEEE80211_QOS_CTL_LEN 2 120 /* 1d tag mask */ 121 #define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007 122 /* TID mask */ 123 #define IEEE80211_QOS_CTL_TID_MASK 0x000f 124 /* EOSP */ 125 #define IEEE80211_QOS_CTL_EOSP 0x0010 126 /* ACK policy */ 127 #define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL 0x0000 128 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK 0x0020 129 #define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL 0x0040 130 #define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK 0x0060 131 /* A-MSDU 802.11n */ 132 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT 0x0080 133 /* Mesh Control 802.11s */ 134 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT 0x0100 135 136 /* U-APSD queue for WMM IEs sent by AP */ 137 #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD (1<<7) 138 #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK 0x0f 139 140 /* U-APSD queues for WMM IEs sent by STA */ 141 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO (1<<0) 142 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI (1<<1) 143 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK (1<<2) 144 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE (1<<3) 145 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK 0x0f 146 147 /* U-APSD max SP length for WMM IEs sent by STA */ 148 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 0x00 149 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_2 0x01 150 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_4 0x02 151 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_6 0x03 152 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK 0x03 153 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT 5 154 155 #define IEEE80211_HT_CTL_LEN 4 156 157 struct ieee80211_hdr { 158 __le16 frame_control; 159 __le16 duration_id; 160 u8 addr1[6]; 161 u8 addr2[6]; 162 u8 addr3[6]; 163 __le16 seq_ctrl; 164 u8 addr4[6]; 165 } __attribute__ ((packed)); 166 167 struct ieee80211_hdr_3addr { 168 __le16 frame_control; 169 __le16 duration_id; 170 u8 addr1[6]; 171 u8 addr2[6]; 172 u8 addr3[6]; 173 __le16 seq_ctrl; 174 } __attribute__ ((packed)); 175 176 struct ieee80211_qos_hdr { 177 __le16 frame_control; 178 __le16 duration_id; 179 u8 addr1[6]; 180 u8 addr2[6]; 181 u8 addr3[6]; 182 __le16 seq_ctrl; 183 __le16 qos_ctrl; 184 } __attribute__ ((packed)); 185 186 /** 187 * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set 188 * @fc: frame control bytes in little-endian byteorder 189 */ 190 static inline int ieee80211_has_tods(__le16 fc) 191 { 192 return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0; 193 } 194 195 /** 196 * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set 197 * @fc: frame control bytes in little-endian byteorder 198 */ 199 static inline int ieee80211_has_fromds(__le16 fc) 200 { 201 return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0; 202 } 203 204 /** 205 * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set 206 * @fc: frame control bytes in little-endian byteorder 207 */ 208 static inline int ieee80211_has_a4(__le16 fc) 209 { 210 __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS); 211 return (fc & tmp) == tmp; 212 } 213 214 /** 215 * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set 216 * @fc: frame control bytes in little-endian byteorder 217 */ 218 static inline int ieee80211_has_morefrags(__le16 fc) 219 { 220 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0; 221 } 222 223 /** 224 * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set 225 * @fc: frame control bytes in little-endian byteorder 226 */ 227 static inline int ieee80211_has_retry(__le16 fc) 228 { 229 return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0; 230 } 231 232 /** 233 * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set 234 * @fc: frame control bytes in little-endian byteorder 235 */ 236 static inline int ieee80211_has_pm(__le16 fc) 237 { 238 return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0; 239 } 240 241 /** 242 * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set 243 * @fc: frame control bytes in little-endian byteorder 244 */ 245 static inline int ieee80211_has_moredata(__le16 fc) 246 { 247 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0; 248 } 249 250 /** 251 * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set 252 * @fc: frame control bytes in little-endian byteorder 253 */ 254 static inline int ieee80211_has_protected(__le16 fc) 255 { 256 return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0; 257 } 258 259 /** 260 * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set 261 * @fc: frame control bytes in little-endian byteorder 262 */ 263 static inline int ieee80211_has_order(__le16 fc) 264 { 265 return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0; 266 } 267 268 /** 269 * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT 270 * @fc: frame control bytes in little-endian byteorder 271 */ 272 static inline int ieee80211_is_mgmt(__le16 fc) 273 { 274 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) == 275 cpu_to_le16(IEEE80211_FTYPE_MGMT); 276 } 277 278 /** 279 * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL 280 * @fc: frame control bytes in little-endian byteorder 281 */ 282 static inline int ieee80211_is_ctl(__le16 fc) 283 { 284 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) == 285 cpu_to_le16(IEEE80211_FTYPE_CTL); 286 } 287 288 /** 289 * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA 290 * @fc: frame control bytes in little-endian byteorder 291 */ 292 static inline int ieee80211_is_data(__le16 fc) 293 { 294 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) == 295 cpu_to_le16(IEEE80211_FTYPE_DATA); 296 } 297 298 /** 299 * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set 300 * @fc: frame control bytes in little-endian byteorder 301 */ 302 static inline int ieee80211_is_data_qos(__le16 fc) 303 { 304 /* 305 * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need 306 * to check the one bit 307 */ 308 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) == 309 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA); 310 } 311 312 /** 313 * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data 314 * @fc: frame control bytes in little-endian byteorder 315 */ 316 static inline int ieee80211_is_data_present(__le16 fc) 317 { 318 /* 319 * mask with 0x40 and test that that bit is clear to only return true 320 * for the data-containing substypes. 321 */ 322 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) == 323 cpu_to_le16(IEEE80211_FTYPE_DATA); 324 } 325 326 /** 327 * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ 328 * @fc: frame control bytes in little-endian byteorder 329 */ 330 static inline int ieee80211_is_assoc_req(__le16 fc) 331 { 332 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 333 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ); 334 } 335 336 /** 337 * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP 338 * @fc: frame control bytes in little-endian byteorder 339 */ 340 static inline int ieee80211_is_assoc_resp(__le16 fc) 341 { 342 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 343 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP); 344 } 345 346 /** 347 * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ 348 * @fc: frame control bytes in little-endian byteorder 349 */ 350 static inline int ieee80211_is_reassoc_req(__le16 fc) 351 { 352 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 353 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ); 354 } 355 356 /** 357 * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP 358 * @fc: frame control bytes in little-endian byteorder 359 */ 360 static inline int ieee80211_is_reassoc_resp(__le16 fc) 361 { 362 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 363 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP); 364 } 365 366 /** 367 * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ 368 * @fc: frame control bytes in little-endian byteorder 369 */ 370 static inline int ieee80211_is_probe_req(__le16 fc) 371 { 372 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 373 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ); 374 } 375 376 /** 377 * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP 378 * @fc: frame control bytes in little-endian byteorder 379 */ 380 static inline int ieee80211_is_probe_resp(__le16 fc) 381 { 382 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 383 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP); 384 } 385 386 /** 387 * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON 388 * @fc: frame control bytes in little-endian byteorder 389 */ 390 static inline int ieee80211_is_beacon(__le16 fc) 391 { 392 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 393 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON); 394 } 395 396 /** 397 * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM 398 * @fc: frame control bytes in little-endian byteorder 399 */ 400 static inline int ieee80211_is_atim(__le16 fc) 401 { 402 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 403 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM); 404 } 405 406 /** 407 * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC 408 * @fc: frame control bytes in little-endian byteorder 409 */ 410 static inline int ieee80211_is_disassoc(__le16 fc) 411 { 412 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 413 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC); 414 } 415 416 /** 417 * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH 418 * @fc: frame control bytes in little-endian byteorder 419 */ 420 static inline int ieee80211_is_auth(__le16 fc) 421 { 422 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 423 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH); 424 } 425 426 /** 427 * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH 428 * @fc: frame control bytes in little-endian byteorder 429 */ 430 static inline int ieee80211_is_deauth(__le16 fc) 431 { 432 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 433 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH); 434 } 435 436 /** 437 * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION 438 * @fc: frame control bytes in little-endian byteorder 439 */ 440 static inline int ieee80211_is_action(__le16 fc) 441 { 442 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 443 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION); 444 } 445 446 /** 447 * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ 448 * @fc: frame control bytes in little-endian byteorder 449 */ 450 static inline int ieee80211_is_back_req(__le16 fc) 451 { 452 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 453 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ); 454 } 455 456 /** 457 * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK 458 * @fc: frame control bytes in little-endian byteorder 459 */ 460 static inline int ieee80211_is_back(__le16 fc) 461 { 462 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 463 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK); 464 } 465 466 /** 467 * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL 468 * @fc: frame control bytes in little-endian byteorder 469 */ 470 static inline int ieee80211_is_pspoll(__le16 fc) 471 { 472 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 473 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL); 474 } 475 476 /** 477 * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS 478 * @fc: frame control bytes in little-endian byteorder 479 */ 480 static inline int ieee80211_is_rts(__le16 fc) 481 { 482 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 483 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS); 484 } 485 486 /** 487 * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS 488 * @fc: frame control bytes in little-endian byteorder 489 */ 490 static inline int ieee80211_is_cts(__le16 fc) 491 { 492 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 493 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS); 494 } 495 496 /** 497 * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK 498 * @fc: frame control bytes in little-endian byteorder 499 */ 500 static inline int ieee80211_is_ack(__le16 fc) 501 { 502 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 503 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK); 504 } 505 506 /** 507 * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND 508 * @fc: frame control bytes in little-endian byteorder 509 */ 510 static inline int ieee80211_is_cfend(__le16 fc) 511 { 512 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 513 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND); 514 } 515 516 /** 517 * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK 518 * @fc: frame control bytes in little-endian byteorder 519 */ 520 static inline int ieee80211_is_cfendack(__le16 fc) 521 { 522 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 523 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK); 524 } 525 526 /** 527 * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame 528 * @fc: frame control bytes in little-endian byteorder 529 */ 530 static inline int ieee80211_is_nullfunc(__le16 fc) 531 { 532 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 533 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC); 534 } 535 536 /** 537 * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame 538 * @fc: frame control bytes in little-endian byteorder 539 */ 540 static inline int ieee80211_is_qos_nullfunc(__le16 fc) 541 { 542 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 543 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC); 544 } 545 546 struct ieee80211s_hdr { 547 u8 flags; 548 u8 ttl; 549 __le32 seqnum; 550 u8 eaddr1[6]; 551 u8 eaddr2[6]; 552 } __attribute__ ((packed)); 553 554 /* Mesh flags */ 555 #define MESH_FLAGS_AE_A4 0x1 556 #define MESH_FLAGS_AE_A5_A6 0x2 557 #define MESH_FLAGS_AE 0x3 558 #define MESH_FLAGS_PS_DEEP 0x4 559 560 /** 561 * struct ieee80211_quiet_ie 562 * 563 * This structure refers to "Quiet information element" 564 */ 565 struct ieee80211_quiet_ie { 566 u8 count; 567 u8 period; 568 __le16 duration; 569 __le16 offset; 570 } __attribute__ ((packed)); 571 572 /** 573 * struct ieee80211_msrment_ie 574 * 575 * This structure refers to "Measurement Request/Report information element" 576 */ 577 struct ieee80211_msrment_ie { 578 u8 token; 579 u8 mode; 580 u8 type; 581 u8 request[0]; 582 } __attribute__ ((packed)); 583 584 /** 585 * struct ieee80211_channel_sw_ie 586 * 587 * This structure refers to "Channel Switch Announcement information element" 588 */ 589 struct ieee80211_channel_sw_ie { 590 u8 mode; 591 u8 new_ch_num; 592 u8 count; 593 } __attribute__ ((packed)); 594 595 /** 596 * struct ieee80211_tim 597 * 598 * This structure refers to "Traffic Indication Map information element" 599 */ 600 struct ieee80211_tim_ie { 601 u8 dtim_count; 602 u8 dtim_period; 603 u8 bitmap_ctrl; 604 /* variable size: 1 - 251 bytes */ 605 u8 virtual_map[1]; 606 } __attribute__ ((packed)); 607 608 /** 609 * struct ieee80211_meshconf_ie 610 * 611 * This structure refers to "Mesh Configuration information element" 612 */ 613 struct ieee80211_meshconf_ie { 614 u8 meshconf_psel; 615 u8 meshconf_pmetric; 616 u8 meshconf_congest; 617 u8 meshconf_synch; 618 u8 meshconf_auth; 619 u8 meshconf_form; 620 u8 meshconf_cap; 621 } __attribute__ ((packed)); 622 623 /** 624 * struct ieee80211_rann_ie 625 * 626 * This structure refers to "Root Announcement information element" 627 */ 628 struct ieee80211_rann_ie { 629 u8 rann_flags; 630 u8 rann_hopcount; 631 u8 rann_ttl; 632 u8 rann_addr[6]; 633 u32 rann_seq; 634 u32 rann_interval; 635 u32 rann_metric; 636 } __attribute__ ((packed)); 637 638 enum ieee80211_rann_flags { 639 RANN_FLAG_IS_GATE = 1 << 0, 640 }; 641 642 #define WLAN_SA_QUERY_TR_ID_LEN 2 643 644 struct ieee80211_mgmt { 645 __le16 frame_control; 646 __le16 duration; 647 u8 da[6]; 648 u8 sa[6]; 649 u8 bssid[6]; 650 __le16 seq_ctrl; 651 union { 652 struct { 653 __le16 auth_alg; 654 __le16 auth_transaction; 655 __le16 status_code; 656 /* possibly followed by Challenge text */ 657 u8 variable[0]; 658 } __attribute__ ((packed)) auth; 659 struct { 660 __le16 reason_code; 661 } __attribute__ ((packed)) deauth; 662 struct { 663 __le16 capab_info; 664 __le16 listen_interval; 665 /* followed by SSID and Supported rates */ 666 u8 variable[0]; 667 } __attribute__ ((packed)) assoc_req; 668 struct { 669 __le16 capab_info; 670 __le16 status_code; 671 __le16 aid; 672 /* followed by Supported rates */ 673 u8 variable[0]; 674 } __attribute__ ((packed)) assoc_resp, reassoc_resp; 675 struct { 676 __le16 capab_info; 677 __le16 listen_interval; 678 u8 current_ap[6]; 679 /* followed by SSID and Supported rates */ 680 u8 variable[0]; 681 } __attribute__ ((packed)) reassoc_req; 682 struct { 683 __le16 reason_code; 684 } __attribute__ ((packed)) disassoc; 685 struct { 686 __le64 timestamp; 687 __le16 beacon_int; 688 __le16 capab_info; 689 /* followed by some of SSID, Supported rates, 690 * FH Params, DS Params, CF Params, IBSS Params, TIM */ 691 u8 variable[0]; 692 } __attribute__ ((packed)) beacon; 693 struct { 694 /* only variable items: SSID, Supported rates */ 695 u8 variable[0]; 696 } __attribute__ ((packed)) probe_req; 697 struct { 698 __le64 timestamp; 699 __le16 beacon_int; 700 __le16 capab_info; 701 /* followed by some of SSID, Supported rates, 702 * FH Params, DS Params, CF Params, IBSS Params */ 703 u8 variable[0]; 704 } __attribute__ ((packed)) probe_resp; 705 struct { 706 u8 category; 707 union { 708 struct { 709 u8 action_code; 710 u8 dialog_token; 711 u8 status_code; 712 u8 variable[0]; 713 } __attribute__ ((packed)) wme_action; 714 struct{ 715 u8 action_code; 716 u8 element_id; 717 u8 length; 718 struct ieee80211_channel_sw_ie sw_elem; 719 } __attribute__((packed)) chan_switch; 720 struct{ 721 u8 action_code; 722 u8 dialog_token; 723 u8 element_id; 724 u8 length; 725 struct ieee80211_msrment_ie msr_elem; 726 } __attribute__((packed)) measurement; 727 struct{ 728 u8 action_code; 729 u8 dialog_token; 730 __le16 capab; 731 __le16 timeout; 732 __le16 start_seq_num; 733 } __attribute__((packed)) addba_req; 734 struct{ 735 u8 action_code; 736 u8 dialog_token; 737 __le16 status; 738 __le16 capab; 739 __le16 timeout; 740 } __attribute__((packed)) addba_resp; 741 struct{ 742 u8 action_code; 743 __le16 params; 744 __le16 reason_code; 745 } __attribute__((packed)) delba; 746 struct { 747 u8 action_code; 748 u8 variable[0]; 749 } __attribute__((packed)) self_prot; 750 struct{ 751 u8 action_code; 752 u8 variable[0]; 753 } __attribute__((packed)) mesh_action; 754 struct { 755 u8 action; 756 u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN]; 757 } __attribute__ ((packed)) sa_query; 758 struct { 759 u8 action; 760 u8 smps_control; 761 } __attribute__ ((packed)) ht_smps; 762 struct { 763 u8 action_code; 764 u8 dialog_token; 765 __le16 capability; 766 u8 variable[0]; 767 } __packed tdls_discover_resp; 768 } u; 769 } __attribute__ ((packed)) action; 770 } u; 771 } __attribute__ ((packed)); 772 773 /* mgmt header + 1 byte category code */ 774 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u) 775 776 777 /* Management MIC information element (IEEE 802.11w) */ 778 struct ieee80211_mmie { 779 u8 element_id; 780 u8 length; 781 __le16 key_id; 782 u8 sequence_number[6]; 783 u8 mic[8]; 784 } __attribute__ ((packed)); 785 786 struct ieee80211_vendor_ie { 787 u8 element_id; 788 u8 len; 789 u8 oui[3]; 790 u8 oui_type; 791 } __packed; 792 793 /* Control frames */ 794 struct ieee80211_rts { 795 __le16 frame_control; 796 __le16 duration; 797 u8 ra[6]; 798 u8 ta[6]; 799 } __attribute__ ((packed)); 800 801 struct ieee80211_cts { 802 __le16 frame_control; 803 __le16 duration; 804 u8 ra[6]; 805 } __attribute__ ((packed)); 806 807 struct ieee80211_pspoll { 808 __le16 frame_control; 809 __le16 aid; 810 u8 bssid[6]; 811 u8 ta[6]; 812 } __attribute__ ((packed)); 813 814 /* TDLS */ 815 816 /* Link-id information element */ 817 struct ieee80211_tdls_lnkie { 818 u8 ie_type; /* Link Identifier IE */ 819 u8 ie_len; 820 u8 bssid[6]; 821 u8 init_sta[6]; 822 u8 resp_sta[6]; 823 } __packed; 824 825 struct ieee80211_tdls_data { 826 u8 da[6]; 827 u8 sa[6]; 828 __be16 ether_type; 829 u8 payload_type; 830 u8 category; 831 u8 action_code; 832 union { 833 struct { 834 u8 dialog_token; 835 __le16 capability; 836 u8 variable[0]; 837 } __packed setup_req; 838 struct { 839 __le16 status_code; 840 u8 dialog_token; 841 __le16 capability; 842 u8 variable[0]; 843 } __packed setup_resp; 844 struct { 845 __le16 status_code; 846 u8 dialog_token; 847 u8 variable[0]; 848 } __packed setup_cfm; 849 struct { 850 __le16 reason_code; 851 u8 variable[0]; 852 } __packed teardown; 853 struct { 854 u8 dialog_token; 855 u8 variable[0]; 856 } __packed discover_req; 857 } u; 858 } __packed; 859 860 /** 861 * struct ieee80211_bar - HT Block Ack Request 862 * 863 * This structure refers to "HT BlockAckReq" as 864 * described in 802.11n draft section 7.2.1.7.1 865 */ 866 struct ieee80211_bar { 867 __le16 frame_control; 868 __le16 duration; 869 __u8 ra[6]; 870 __u8 ta[6]; 871 __le16 control; 872 __le16 start_seq_num; 873 } __attribute__((packed)); 874 875 /* 802.11 BAR control masks */ 876 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000 877 #define IEEE80211_BAR_CTRL_MULTI_TID 0x0002 878 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004 879 #define IEEE80211_BAR_CTRL_TID_INFO_MASK 0xf000 880 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT 12 881 882 #define IEEE80211_HT_MCS_MASK_LEN 10 883 884 /** 885 * struct ieee80211_mcs_info - MCS information 886 * @rx_mask: RX mask 887 * @rx_highest: highest supported RX rate. If set represents 888 * the highest supported RX data rate in units of 1 Mbps. 889 * If this field is 0 this value should not be used to 890 * consider the highest RX data rate supported. 891 * @tx_params: TX parameters 892 */ 893 struct ieee80211_mcs_info { 894 u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN]; 895 __le16 rx_highest; 896 u8 tx_params; 897 u8 reserved[3]; 898 } __attribute__((packed)); 899 900 /* 802.11n HT capability MSC set */ 901 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff 902 #define IEEE80211_HT_MCS_TX_DEFINED 0x01 903 #define IEEE80211_HT_MCS_TX_RX_DIFF 0x02 904 /* value 0 == 1 stream etc */ 905 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0C 906 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2 907 #define IEEE80211_HT_MCS_TX_MAX_STREAMS 4 908 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION 0x10 909 910 /* 911 * 802.11n D5.0 20.3.5 / 20.6 says: 912 * - indices 0 to 7 and 32 are single spatial stream 913 * - 8 to 31 are multiple spatial streams using equal modulation 914 * [8..15 for two streams, 16..23 for three and 24..31 for four] 915 * - remainder are multiple spatial streams using unequal modulation 916 */ 917 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33 918 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \ 919 (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8) 920 921 /** 922 * struct ieee80211_ht_cap - HT capabilities 923 * 924 * This structure is the "HT capabilities element" as 925 * described in 802.11n D5.0 7.3.2.57 926 */ 927 struct ieee80211_ht_cap { 928 __le16 cap_info; 929 u8 ampdu_params_info; 930 931 /* 16 bytes MCS information */ 932 struct ieee80211_mcs_info mcs; 933 934 __le16 extended_ht_cap_info; 935 __le32 tx_BF_cap_info; 936 u8 antenna_selection_info; 937 } __attribute__ ((packed)); 938 939 /* 802.11n HT capabilities masks (for cap_info) */ 940 #define IEEE80211_HT_CAP_LDPC_CODING 0x0001 941 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40 0x0002 942 #define IEEE80211_HT_CAP_SM_PS 0x000C 943 #define IEEE80211_HT_CAP_SM_PS_SHIFT 2 944 #define IEEE80211_HT_CAP_GRN_FLD 0x0010 945 #define IEEE80211_HT_CAP_SGI_20 0x0020 946 #define IEEE80211_HT_CAP_SGI_40 0x0040 947 #define IEEE80211_HT_CAP_TX_STBC 0x0080 948 #define IEEE80211_HT_CAP_RX_STBC 0x0300 949 #define IEEE80211_HT_CAP_RX_STBC_SHIFT 8 950 #define IEEE80211_HT_CAP_DELAY_BA 0x0400 951 #define IEEE80211_HT_CAP_MAX_AMSDU 0x0800 952 #define IEEE80211_HT_CAP_DSSSCCK40 0x1000 953 #define IEEE80211_HT_CAP_RESERVED 0x2000 954 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT 0x4000 955 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT 0x8000 956 957 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */ 958 #define IEEE80211_HT_EXT_CAP_PCO 0x0001 959 #define IEEE80211_HT_EXT_CAP_PCO_TIME 0x0006 960 #define IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT 1 961 #define IEEE80211_HT_EXT_CAP_MCS_FB 0x0300 962 #define IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT 8 963 #define IEEE80211_HT_EXT_CAP_HTC_SUP 0x0400 964 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER 0x0800 965 966 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */ 967 #define IEEE80211_HT_AMPDU_PARM_FACTOR 0x03 968 #define IEEE80211_HT_AMPDU_PARM_DENSITY 0x1C 969 #define IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT 2 970 971 /* 972 * Maximum length of AMPDU that the STA can receive. 973 * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets) 974 */ 975 enum ieee80211_max_ampdu_length_exp { 976 IEEE80211_HT_MAX_AMPDU_8K = 0, 977 IEEE80211_HT_MAX_AMPDU_16K = 1, 978 IEEE80211_HT_MAX_AMPDU_32K = 2, 979 IEEE80211_HT_MAX_AMPDU_64K = 3 980 }; 981 982 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13 983 984 /* Minimum MPDU start spacing */ 985 enum ieee80211_min_mpdu_spacing { 986 IEEE80211_HT_MPDU_DENSITY_NONE = 0, /* No restriction */ 987 IEEE80211_HT_MPDU_DENSITY_0_25 = 1, /* 1/4 usec */ 988 IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 usec */ 989 IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 usec */ 990 IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 usec */ 991 IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4 usec */ 992 IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8 usec */ 993 IEEE80211_HT_MPDU_DENSITY_16 = 7 /* 16 usec */ 994 }; 995 996 /** 997 * struct ieee80211_ht_info - HT information 998 * 999 * This structure is the "HT information element" as 1000 * described in 802.11n D5.0 7.3.2.58 1001 */ 1002 struct ieee80211_ht_info { 1003 u8 control_chan; 1004 u8 ht_param; 1005 __le16 operation_mode; 1006 __le16 stbc_param; 1007 u8 basic_set[16]; 1008 } __attribute__ ((packed)); 1009 1010 /* for ht_param */ 1011 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET 0x03 1012 #define IEEE80211_HT_PARAM_CHA_SEC_NONE 0x00 1013 #define IEEE80211_HT_PARAM_CHA_SEC_ABOVE 0x01 1014 #define IEEE80211_HT_PARAM_CHA_SEC_BELOW 0x03 1015 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY 0x04 1016 #define IEEE80211_HT_PARAM_RIFS_MODE 0x08 1017 #define IEEE80211_HT_PARAM_SPSMP_SUPPORT 0x10 1018 #define IEEE80211_HT_PARAM_SERV_INTERVAL_GRAN 0xE0 1019 1020 /* for operation_mode */ 1021 #define IEEE80211_HT_OP_MODE_PROTECTION 0x0003 1022 #define IEEE80211_HT_OP_MODE_PROTECTION_NONE 0 1023 #define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER 1 1024 #define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ 2 1025 #define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED 3 1026 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT 0x0004 1027 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT 0x0010 1028 1029 /* for stbc_param */ 1030 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON 0x0040 1031 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080 1032 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON 0x0100 1033 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT 0x0200 1034 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE 0x0400 1035 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE 0x0800 1036 1037 1038 /* block-ack parameters */ 1039 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002 1040 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C 1041 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0 1042 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000 1043 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800 1044 1045 /* 1046 * A-PMDU buffer sizes 1047 * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2) 1048 */ 1049 #define IEEE80211_MIN_AMPDU_BUF 0x8 1050 #define IEEE80211_MAX_AMPDU_BUF 0x40 1051 1052 1053 /* Spatial Multiplexing Power Save Modes (for capability) */ 1054 #define WLAN_HT_CAP_SM_PS_STATIC 0 1055 #define WLAN_HT_CAP_SM_PS_DYNAMIC 1 1056 #define WLAN_HT_CAP_SM_PS_INVALID 2 1057 #define WLAN_HT_CAP_SM_PS_DISABLED 3 1058 1059 /* for SM power control field lower two bits */ 1060 #define WLAN_HT_SMPS_CONTROL_DISABLED 0 1061 #define WLAN_HT_SMPS_CONTROL_STATIC 1 1062 #define WLAN_HT_SMPS_CONTROL_DYNAMIC 3 1063 1064 /* Authentication algorithms */ 1065 #define WLAN_AUTH_OPEN 0 1066 #define WLAN_AUTH_SHARED_KEY 1 1067 #define WLAN_AUTH_FT 2 1068 #define WLAN_AUTH_SAE 3 1069 #define WLAN_AUTH_LEAP 128 1070 1071 #define WLAN_AUTH_CHALLENGE_LEN 128 1072 1073 #define WLAN_CAPABILITY_ESS (1<<0) 1074 #define WLAN_CAPABILITY_IBSS (1<<1) 1075 1076 /* 1077 * A mesh STA sets the ESS and IBSS capability bits to zero. 1078 * however, this holds true for p2p probe responses (in the p2p_find 1079 * phase) as well. 1080 */ 1081 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \ 1082 (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS))) 1083 1084 #define WLAN_CAPABILITY_CF_POLLABLE (1<<2) 1085 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3) 1086 #define WLAN_CAPABILITY_PRIVACY (1<<4) 1087 #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5) 1088 #define WLAN_CAPABILITY_PBCC (1<<6) 1089 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7) 1090 1091 /* 802.11h */ 1092 #define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8) 1093 #define WLAN_CAPABILITY_QOS (1<<9) 1094 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10) 1095 #define WLAN_CAPABILITY_DSSS_OFDM (1<<13) 1096 /* measurement */ 1097 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE (1<<0) 1098 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE (1<<1) 1099 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED (1<<2) 1100 1101 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC 0 1102 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA 1 1103 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI 2 1104 1105 1106 /* 802.11g ERP information element */ 1107 #define WLAN_ERP_NON_ERP_PRESENT (1<<0) 1108 #define WLAN_ERP_USE_PROTECTION (1<<1) 1109 #define WLAN_ERP_BARKER_PREAMBLE (1<<2) 1110 1111 /* WLAN_ERP_BARKER_PREAMBLE values */ 1112 enum { 1113 WLAN_ERP_PREAMBLE_SHORT = 0, 1114 WLAN_ERP_PREAMBLE_LONG = 1, 1115 }; 1116 1117 /* Status codes */ 1118 enum ieee80211_statuscode { 1119 WLAN_STATUS_SUCCESS = 0, 1120 WLAN_STATUS_UNSPECIFIED_FAILURE = 1, 1121 WLAN_STATUS_CAPS_UNSUPPORTED = 10, 1122 WLAN_STATUS_REASSOC_NO_ASSOC = 11, 1123 WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12, 1124 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13, 1125 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14, 1126 WLAN_STATUS_CHALLENGE_FAIL = 15, 1127 WLAN_STATUS_AUTH_TIMEOUT = 16, 1128 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17, 1129 WLAN_STATUS_ASSOC_DENIED_RATES = 18, 1130 /* 802.11b */ 1131 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19, 1132 WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20, 1133 WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21, 1134 /* 802.11h */ 1135 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22, 1136 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23, 1137 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24, 1138 /* 802.11g */ 1139 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25, 1140 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26, 1141 /* 802.11w */ 1142 WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30, 1143 WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31, 1144 /* 802.11i */ 1145 WLAN_STATUS_INVALID_IE = 40, 1146 WLAN_STATUS_INVALID_GROUP_CIPHER = 41, 1147 WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42, 1148 WLAN_STATUS_INVALID_AKMP = 43, 1149 WLAN_STATUS_UNSUPP_RSN_VERSION = 44, 1150 WLAN_STATUS_INVALID_RSN_IE_CAP = 45, 1151 WLAN_STATUS_CIPHER_SUITE_REJECTED = 46, 1152 /* 802.11e */ 1153 WLAN_STATUS_UNSPECIFIED_QOS = 32, 1154 WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33, 1155 WLAN_STATUS_ASSOC_DENIED_LOWACK = 34, 1156 WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35, 1157 WLAN_STATUS_REQUEST_DECLINED = 37, 1158 WLAN_STATUS_INVALID_QOS_PARAM = 38, 1159 WLAN_STATUS_CHANGE_TSPEC = 39, 1160 WLAN_STATUS_WAIT_TS_DELAY = 47, 1161 WLAN_STATUS_NO_DIRECT_LINK = 48, 1162 WLAN_STATUS_STA_NOT_PRESENT = 49, 1163 WLAN_STATUS_STA_NOT_QSTA = 50, 1164 /* 802.11s */ 1165 WLAN_STATUS_ANTI_CLOG_REQUIRED = 76, 1166 WLAN_STATUS_FCG_NOT_SUPP = 78, 1167 WLAN_STATUS_STA_NO_TBTT = 78, 1168 }; 1169 1170 1171 /* Reason codes */ 1172 enum ieee80211_reasoncode { 1173 WLAN_REASON_UNSPECIFIED = 1, 1174 WLAN_REASON_PREV_AUTH_NOT_VALID = 2, 1175 WLAN_REASON_DEAUTH_LEAVING = 3, 1176 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4, 1177 WLAN_REASON_DISASSOC_AP_BUSY = 5, 1178 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6, 1179 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7, 1180 WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8, 1181 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9, 1182 /* 802.11h */ 1183 WLAN_REASON_DISASSOC_BAD_POWER = 10, 1184 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11, 1185 /* 802.11i */ 1186 WLAN_REASON_INVALID_IE = 13, 1187 WLAN_REASON_MIC_FAILURE = 14, 1188 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15, 1189 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16, 1190 WLAN_REASON_IE_DIFFERENT = 17, 1191 WLAN_REASON_INVALID_GROUP_CIPHER = 18, 1192 WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19, 1193 WLAN_REASON_INVALID_AKMP = 20, 1194 WLAN_REASON_UNSUPP_RSN_VERSION = 21, 1195 WLAN_REASON_INVALID_RSN_IE_CAP = 22, 1196 WLAN_REASON_IEEE8021X_FAILED = 23, 1197 WLAN_REASON_CIPHER_SUITE_REJECTED = 24, 1198 /* 802.11e */ 1199 WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32, 1200 WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33, 1201 WLAN_REASON_DISASSOC_LOW_ACK = 34, 1202 WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35, 1203 WLAN_REASON_QSTA_LEAVE_QBSS = 36, 1204 WLAN_REASON_QSTA_NOT_USE = 37, 1205 WLAN_REASON_QSTA_REQUIRE_SETUP = 38, 1206 WLAN_REASON_QSTA_TIMEOUT = 39, 1207 WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45, 1208 /* 802.11s */ 1209 WLAN_REASON_MESH_PEER_CANCELED = 52, 1210 WLAN_REASON_MESH_MAX_PEERS = 53, 1211 WLAN_REASON_MESH_CONFIG = 54, 1212 WLAN_REASON_MESH_CLOSE = 55, 1213 WLAN_REASON_MESH_MAX_RETRIES = 56, 1214 WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57, 1215 WLAN_REASON_MESH_INVALID_GTK = 58, 1216 WLAN_REASON_MESH_INCONSISTENT_PARAM = 59, 1217 WLAN_REASON_MESH_INVALID_SECURITY = 60, 1218 WLAN_REASON_MESH_PATH_ERROR = 61, 1219 WLAN_REASON_MESH_PATH_NOFORWARD = 62, 1220 WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63, 1221 WLAN_REASON_MAC_EXISTS_IN_MBSS = 64, 1222 WLAN_REASON_MESH_CHAN_REGULATORY = 65, 1223 WLAN_REASON_MESH_CHAN = 66, 1224 }; 1225 1226 1227 /* Information Element IDs */ 1228 enum ieee80211_eid { 1229 WLAN_EID_SSID = 0, 1230 WLAN_EID_SUPP_RATES = 1, 1231 WLAN_EID_FH_PARAMS = 2, 1232 WLAN_EID_DS_PARAMS = 3, 1233 WLAN_EID_CF_PARAMS = 4, 1234 WLAN_EID_TIM = 5, 1235 WLAN_EID_IBSS_PARAMS = 6, 1236 WLAN_EID_CHALLENGE = 16, 1237 1238 WLAN_EID_COUNTRY = 7, 1239 WLAN_EID_HP_PARAMS = 8, 1240 WLAN_EID_HP_TABLE = 9, 1241 WLAN_EID_REQUEST = 10, 1242 1243 WLAN_EID_QBSS_LOAD = 11, 1244 WLAN_EID_EDCA_PARAM_SET = 12, 1245 WLAN_EID_TSPEC = 13, 1246 WLAN_EID_TCLAS = 14, 1247 WLAN_EID_SCHEDULE = 15, 1248 WLAN_EID_TS_DELAY = 43, 1249 WLAN_EID_TCLAS_PROCESSING = 44, 1250 WLAN_EID_QOS_CAPA = 46, 1251 /* 802.11z */ 1252 WLAN_EID_LINK_ID = 101, 1253 /* 802.11s */ 1254 WLAN_EID_MESH_CONFIG = 113, 1255 WLAN_EID_MESH_ID = 114, 1256 WLAN_EID_LINK_METRIC_REPORT = 115, 1257 WLAN_EID_CONGESTION_NOTIFICATION = 116, 1258 WLAN_EID_PEER_MGMT = 117, 1259 WLAN_EID_CHAN_SWITCH_PARAM = 118, 1260 WLAN_EID_MESH_AWAKE_WINDOW = 119, 1261 WLAN_EID_BEACON_TIMING = 120, 1262 WLAN_EID_MCCAOP_SETUP_REQ = 121, 1263 WLAN_EID_MCCAOP_SETUP_RESP = 122, 1264 WLAN_EID_MCCAOP_ADVERT = 123, 1265 WLAN_EID_MCCAOP_TEARDOWN = 124, 1266 WLAN_EID_GANN = 125, 1267 WLAN_EID_RANN = 126, 1268 WLAN_EID_PREQ = 130, 1269 WLAN_EID_PREP = 131, 1270 WLAN_EID_PERR = 132, 1271 WLAN_EID_PXU = 137, 1272 WLAN_EID_PXUC = 138, 1273 WLAN_EID_AUTH_MESH_PEER_EXCH = 139, 1274 WLAN_EID_MIC = 140, 1275 1276 WLAN_EID_PWR_CONSTRAINT = 32, 1277 WLAN_EID_PWR_CAPABILITY = 33, 1278 WLAN_EID_TPC_REQUEST = 34, 1279 WLAN_EID_TPC_REPORT = 35, 1280 WLAN_EID_SUPPORTED_CHANNELS = 36, 1281 WLAN_EID_CHANNEL_SWITCH = 37, 1282 WLAN_EID_MEASURE_REQUEST = 38, 1283 WLAN_EID_MEASURE_REPORT = 39, 1284 WLAN_EID_QUIET = 40, 1285 WLAN_EID_IBSS_DFS = 41, 1286 1287 WLAN_EID_ERP_INFO = 42, 1288 WLAN_EID_EXT_SUPP_RATES = 50, 1289 1290 WLAN_EID_HT_CAPABILITY = 45, 1291 WLAN_EID_HT_INFORMATION = 61, 1292 1293 WLAN_EID_RSN = 48, 1294 WLAN_EID_MMIE = 76, 1295 WLAN_EID_WPA = 221, 1296 WLAN_EID_GENERIC = 221, 1297 WLAN_EID_VENDOR_SPECIFIC = 221, 1298 WLAN_EID_QOS_PARAMETER = 222, 1299 1300 WLAN_EID_AP_CHAN_REPORT = 51, 1301 WLAN_EID_NEIGHBOR_REPORT = 52, 1302 WLAN_EID_RCPI = 53, 1303 WLAN_EID_BSS_AVG_ACCESS_DELAY = 63, 1304 WLAN_EID_ANTENNA_INFO = 64, 1305 WLAN_EID_RSNI = 65, 1306 WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66, 1307 WLAN_EID_BSS_AVAILABLE_CAPACITY = 67, 1308 WLAN_EID_BSS_AC_ACCESS_DELAY = 68, 1309 WLAN_EID_RRM_ENABLED_CAPABILITIES = 70, 1310 WLAN_EID_MULTIPLE_BSSID = 71, 1311 WLAN_EID_BSS_COEX_2040 = 72, 1312 WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74, 1313 WLAN_EID_EXT_CAPABILITY = 127, 1314 1315 WLAN_EID_MOBILITY_DOMAIN = 54, 1316 WLAN_EID_FAST_BSS_TRANSITION = 55, 1317 WLAN_EID_TIMEOUT_INTERVAL = 56, 1318 WLAN_EID_RIC_DATA = 57, 1319 WLAN_EID_RIC_DESCRIPTOR = 75, 1320 1321 WLAN_EID_DSE_REGISTERED_LOCATION = 58, 1322 WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59, 1323 WLAN_EID_EXT_CHANSWITCH_ANN = 60, 1324 }; 1325 1326 /* Action category code */ 1327 enum ieee80211_category { 1328 WLAN_CATEGORY_SPECTRUM_MGMT = 0, 1329 WLAN_CATEGORY_QOS = 1, 1330 WLAN_CATEGORY_DLS = 2, 1331 WLAN_CATEGORY_BACK = 3, 1332 WLAN_CATEGORY_PUBLIC = 4, 1333 WLAN_CATEGORY_HT = 7, 1334 WLAN_CATEGORY_SA_QUERY = 8, 1335 WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9, 1336 WLAN_CATEGORY_TDLS = 12, 1337 WLAN_CATEGORY_MESH_ACTION = 13, 1338 WLAN_CATEGORY_MULTIHOP_ACTION = 14, 1339 WLAN_CATEGORY_SELF_PROTECTED = 15, 1340 WLAN_CATEGORY_WMM = 17, 1341 WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126, 1342 WLAN_CATEGORY_VENDOR_SPECIFIC = 127, 1343 }; 1344 1345 /* SPECTRUM_MGMT action code */ 1346 enum ieee80211_spectrum_mgmt_actioncode { 1347 WLAN_ACTION_SPCT_MSR_REQ = 0, 1348 WLAN_ACTION_SPCT_MSR_RPRT = 1, 1349 WLAN_ACTION_SPCT_TPC_REQ = 2, 1350 WLAN_ACTION_SPCT_TPC_RPRT = 3, 1351 WLAN_ACTION_SPCT_CHL_SWITCH = 4, 1352 }; 1353 1354 /* HT action codes */ 1355 enum ieee80211_ht_actioncode { 1356 WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0, 1357 WLAN_HT_ACTION_SMPS = 1, 1358 WLAN_HT_ACTION_PSMP = 2, 1359 WLAN_HT_ACTION_PCO_PHASE = 3, 1360 WLAN_HT_ACTION_CSI = 4, 1361 WLAN_HT_ACTION_NONCOMPRESSED_BF = 5, 1362 WLAN_HT_ACTION_COMPRESSED_BF = 6, 1363 WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7, 1364 }; 1365 1366 /* Self Protected Action codes */ 1367 enum ieee80211_self_protected_actioncode { 1368 WLAN_SP_RESERVED = 0, 1369 WLAN_SP_MESH_PEERING_OPEN = 1, 1370 WLAN_SP_MESH_PEERING_CONFIRM = 2, 1371 WLAN_SP_MESH_PEERING_CLOSE = 3, 1372 WLAN_SP_MGK_INFORM = 4, 1373 WLAN_SP_MGK_ACK = 5, 1374 }; 1375 1376 /* Mesh action codes */ 1377 enum ieee80211_mesh_actioncode { 1378 WLAN_MESH_ACTION_LINK_METRIC_REPORT, 1379 WLAN_MESH_ACTION_HWMP_PATH_SELECTION, 1380 WLAN_MESH_ACTION_GATE_ANNOUNCEMENT, 1381 WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION, 1382 WLAN_MESH_ACTION_MCCA_SETUP_REQUEST, 1383 WLAN_MESH_ACTION_MCCA_SETUP_REPLY, 1384 WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST, 1385 WLAN_MESH_ACTION_MCCA_ADVERTISEMENT, 1386 WLAN_MESH_ACTION_MCCA_TEARDOWN, 1387 WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST, 1388 WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE, 1389 }; 1390 1391 /* Security key length */ 1392 enum ieee80211_key_len { 1393 WLAN_KEY_LEN_WEP40 = 5, 1394 WLAN_KEY_LEN_WEP104 = 13, 1395 WLAN_KEY_LEN_CCMP = 16, 1396 WLAN_KEY_LEN_TKIP = 32, 1397 WLAN_KEY_LEN_AES_CMAC = 16, 1398 }; 1399 1400 /* Public action codes */ 1401 enum ieee80211_pub_actioncode { 1402 WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14, 1403 }; 1404 1405 /* TDLS action codes */ 1406 enum ieee80211_tdls_actioncode { 1407 WLAN_TDLS_SETUP_REQUEST = 0, 1408 WLAN_TDLS_SETUP_RESPONSE = 1, 1409 WLAN_TDLS_SETUP_CONFIRM = 2, 1410 WLAN_TDLS_TEARDOWN = 3, 1411 WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4, 1412 WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5, 1413 WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6, 1414 WLAN_TDLS_PEER_PSM_REQUEST = 7, 1415 WLAN_TDLS_PEER_PSM_RESPONSE = 8, 1416 WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9, 1417 WLAN_TDLS_DISCOVERY_REQUEST = 10, 1418 }; 1419 1420 /* 1421 * TDLS capabililites to be enabled in the 5th byte of the 1422 * @WLAN_EID_EXT_CAPABILITY information element 1423 */ 1424 #define WLAN_EXT_CAPA5_TDLS_ENABLED BIT(5) 1425 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED BIT(6) 1426 1427 /* TDLS specific payload type in the LLC/SNAP header */ 1428 #define WLAN_TDLS_SNAP_RFTYPE 0x2 1429 1430 /** 1431 * enum - mesh path selection protocol identifier 1432 * 1433 * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol 1434 * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will 1435 * be specified in a vendor specific information element 1436 */ 1437 enum { 1438 IEEE80211_PATH_PROTOCOL_HWMP = 0, 1439 IEEE80211_PATH_PROTOCOL_VENDOR = 255, 1440 }; 1441 1442 /** 1443 * enum - mesh path selection metric identifier 1444 * 1445 * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric 1446 * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be 1447 * specified in a vendor specific information element 1448 */ 1449 enum { 1450 IEEE80211_PATH_METRIC_AIRTIME = 0, 1451 IEEE80211_PATH_METRIC_VENDOR = 255, 1452 }; 1453 1454 1455 /* 1456 * IEEE 802.11-2007 7.3.2.9 Country information element 1457 * 1458 * Minimum length is 8 octets, ie len must be evenly 1459 * divisible by 2 1460 */ 1461 1462 /* Although the spec says 8 I'm seeing 6 in practice */ 1463 #define IEEE80211_COUNTRY_IE_MIN_LEN 6 1464 1465 /* The Country String field of the element shall be 3 octets in length */ 1466 #define IEEE80211_COUNTRY_STRING_LEN 3 1467 1468 /* 1469 * For regulatory extension stuff see IEEE 802.11-2007 1470 * Annex I (page 1141) and Annex J (page 1147). Also 1471 * review 7.3.2.9. 1472 * 1473 * When dot11RegulatoryClassesRequired is true and the 1474 * first_channel/reg_extension_id is >= 201 then the IE 1475 * compromises of the 'ext' struct represented below: 1476 * 1477 * - Regulatory extension ID - when generating IE this just needs 1478 * to be monotonically increasing for each triplet passed in 1479 * the IE 1480 * - Regulatory class - index into set of rules 1481 * - Coverage class - index into air propagation time (Table 7-27), 1482 * in microseconds, you can compute the air propagation time from 1483 * the index by multiplying by 3, so index 10 yields a propagation 1484 * of 10 us. Valid values are 0-31, values 32-255 are not defined 1485 * yet. A value of 0 inicates air propagation of <= 1 us. 1486 * 1487 * See also Table I.2 for Emission limit sets and table 1488 * I.3 for Behavior limit sets. Table J.1 indicates how to map 1489 * a reg_class to an emission limit set and behavior limit set. 1490 */ 1491 #define IEEE80211_COUNTRY_EXTENSION_ID 201 1492 1493 /* 1494 * Channels numbers in the IE must be monotonically increasing 1495 * if dot11RegulatoryClassesRequired is not true. 1496 * 1497 * If dot11RegulatoryClassesRequired is true consecutive 1498 * subband triplets following a regulatory triplet shall 1499 * have monotonically increasing first_channel number fields. 1500 * 1501 * Channel numbers shall not overlap. 1502 * 1503 * Note that max_power is signed. 1504 */ 1505 struct ieee80211_country_ie_triplet { 1506 union { 1507 struct { 1508 u8 first_channel; 1509 u8 num_channels; 1510 s8 max_power; 1511 } __attribute__ ((packed)) chans; 1512 struct { 1513 u8 reg_extension_id; 1514 u8 reg_class; 1515 u8 coverage_class; 1516 } __attribute__ ((packed)) ext; 1517 }; 1518 } __attribute__ ((packed)); 1519 1520 enum ieee80211_timeout_interval_type { 1521 WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */, 1522 WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */, 1523 WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */, 1524 }; 1525 1526 /* BACK action code */ 1527 enum ieee80211_back_actioncode { 1528 WLAN_ACTION_ADDBA_REQ = 0, 1529 WLAN_ACTION_ADDBA_RESP = 1, 1530 WLAN_ACTION_DELBA = 2, 1531 }; 1532 1533 /* BACK (block-ack) parties */ 1534 enum ieee80211_back_parties { 1535 WLAN_BACK_RECIPIENT = 0, 1536 WLAN_BACK_INITIATOR = 1, 1537 }; 1538 1539 /* SA Query action */ 1540 enum ieee80211_sa_query_action { 1541 WLAN_ACTION_SA_QUERY_REQUEST = 0, 1542 WLAN_ACTION_SA_QUERY_RESPONSE = 1, 1543 }; 1544 1545 1546 /* cipher suite selectors */ 1547 #define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00 1548 #define WLAN_CIPHER_SUITE_WEP40 0x000FAC01 1549 #define WLAN_CIPHER_SUITE_TKIP 0x000FAC02 1550 /* reserved: 0x000FAC03 */ 1551 #define WLAN_CIPHER_SUITE_CCMP 0x000FAC04 1552 #define WLAN_CIPHER_SUITE_WEP104 0x000FAC05 1553 #define WLAN_CIPHER_SUITE_AES_CMAC 0x000FAC06 1554 1555 /* AKM suite selectors */ 1556 #define WLAN_AKM_SUITE_8021X 0x000FAC01 1557 #define WLAN_AKM_SUITE_PSK 0x000FAC02 1558 #define WLAN_AKM_SUITE_SAE 0x000FAC08 1559 #define WLAN_AKM_SUITE_FT_OVER_SAE 0x000FAC09 1560 1561 #define WLAN_MAX_KEY_LEN 32 1562 1563 #define WLAN_PMKID_LEN 16 1564 1565 #define WLAN_OUI_WFA 0x506f9a 1566 #define WLAN_OUI_TYPE_WFA_P2P 9 1567 1568 /* 1569 * WMM/802.11e Tspec Element 1570 */ 1571 #define IEEE80211_WMM_IE_TSPEC_TID_MASK 0x0F 1572 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT 1 1573 1574 enum ieee80211_tspec_status_code { 1575 IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0, 1576 IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1, 1577 }; 1578 1579 struct ieee80211_tspec_ie { 1580 u8 element_id; 1581 u8 len; 1582 u8 oui[3]; 1583 u8 oui_type; 1584 u8 oui_subtype; 1585 u8 version; 1586 __le16 tsinfo; 1587 u8 tsinfo_resvd; 1588 __le16 nominal_msdu; 1589 __le16 max_msdu; 1590 __le32 min_service_int; 1591 __le32 max_service_int; 1592 __le32 inactivity_int; 1593 __le32 suspension_int; 1594 __le32 service_start_time; 1595 __le32 min_data_rate; 1596 __le32 mean_data_rate; 1597 __le32 peak_data_rate; 1598 __le32 max_burst_size; 1599 __le32 delay_bound; 1600 __le32 min_phy_rate; 1601 __le16 sba; 1602 __le16 medium_time; 1603 } __packed; 1604 1605 /** 1606 * ieee80211_get_qos_ctl - get pointer to qos control bytes 1607 * @hdr: the frame 1608 * 1609 * The qos ctrl bytes come after the frame_control, duration, seq_num 1610 * and 3 or 4 addresses of length ETH_ALEN. 1611 * 3 addr: 2 + 2 + 2 + 3*6 = 24 1612 * 4 addr: 2 + 2 + 2 + 4*6 = 30 1613 */ 1614 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr) 1615 { 1616 if (ieee80211_has_a4(hdr->frame_control)) 1617 return (u8 *)hdr + 30; 1618 else 1619 return (u8 *)hdr + 24; 1620 } 1621 1622 /** 1623 * ieee80211_get_SA - get pointer to SA 1624 * @hdr: the frame 1625 * 1626 * Given an 802.11 frame, this function returns the offset 1627 * to the source address (SA). It does not verify that the 1628 * header is long enough to contain the address, and the 1629 * header must be long enough to contain the frame control 1630 * field. 1631 */ 1632 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr) 1633 { 1634 if (ieee80211_has_a4(hdr->frame_control)) 1635 return hdr->addr4; 1636 if (ieee80211_has_fromds(hdr->frame_control)) 1637 return hdr->addr3; 1638 return hdr->addr2; 1639 } 1640 1641 /** 1642 * ieee80211_get_DA - get pointer to DA 1643 * @hdr: the frame 1644 * 1645 * Given an 802.11 frame, this function returns the offset 1646 * to the destination address (DA). It does not verify that 1647 * the header is long enough to contain the address, and the 1648 * header must be long enough to contain the frame control 1649 * field. 1650 */ 1651 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr) 1652 { 1653 if (ieee80211_has_tods(hdr->frame_control)) 1654 return hdr->addr3; 1655 else 1656 return hdr->addr1; 1657 } 1658 1659 /** 1660 * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame 1661 * @hdr: the frame (buffer must include at least the first octet of payload) 1662 */ 1663 static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr) 1664 { 1665 if (ieee80211_is_disassoc(hdr->frame_control) || 1666 ieee80211_is_deauth(hdr->frame_control)) 1667 return true; 1668 1669 if (ieee80211_is_action(hdr->frame_control)) { 1670 u8 *category; 1671 1672 /* 1673 * Action frames, excluding Public Action frames, are Robust 1674 * Management Frames. However, if we are looking at a Protected 1675 * frame, skip the check since the data may be encrypted and 1676 * the frame has already been found to be a Robust Management 1677 * Frame (by the other end). 1678 */ 1679 if (ieee80211_has_protected(hdr->frame_control)) 1680 return true; 1681 category = ((u8 *) hdr) + 24; 1682 return *category != WLAN_CATEGORY_PUBLIC && 1683 *category != WLAN_CATEGORY_HT && 1684 *category != WLAN_CATEGORY_SELF_PROTECTED && 1685 *category != WLAN_CATEGORY_VENDOR_SPECIFIC; 1686 } 1687 1688 return false; 1689 } 1690 1691 /** 1692 * ieee80211_fhss_chan_to_freq - get channel frequency 1693 * @channel: the FHSS channel 1694 * 1695 * Convert IEEE802.11 FHSS channel to frequency (MHz) 1696 * Ref IEEE 802.11-2007 section 14.6 1697 */ 1698 static inline int ieee80211_fhss_chan_to_freq(int channel) 1699 { 1700 if ((channel > 1) && (channel < 96)) 1701 return channel + 2400; 1702 else 1703 return -1; 1704 } 1705 1706 /** 1707 * ieee80211_freq_to_fhss_chan - get channel 1708 * @freq: the channels frequency 1709 * 1710 * Convert frequency (MHz) to IEEE802.11 FHSS channel 1711 * Ref IEEE 802.11-2007 section 14.6 1712 */ 1713 static inline int ieee80211_freq_to_fhss_chan(int freq) 1714 { 1715 if ((freq > 2401) && (freq < 2496)) 1716 return freq - 2400; 1717 else 1718 return -1; 1719 } 1720 1721 /** 1722 * ieee80211_dsss_chan_to_freq - get channel center frequency 1723 * @channel: the DSSS channel 1724 * 1725 * Convert IEEE802.11 DSSS channel to the center frequency (MHz). 1726 * Ref IEEE 802.11-2007 section 15.6 1727 */ 1728 static inline int ieee80211_dsss_chan_to_freq(int channel) 1729 { 1730 if ((channel > 0) && (channel < 14)) 1731 return 2407 + (channel * 5); 1732 else if (channel == 14) 1733 return 2484; 1734 else 1735 return -1; 1736 } 1737 1738 /** 1739 * ieee80211_freq_to_dsss_chan - get channel 1740 * @freq: the frequency 1741 * 1742 * Convert frequency (MHz) to IEEE802.11 DSSS channel 1743 * Ref IEEE 802.11-2007 section 15.6 1744 * 1745 * This routine selects the channel with the closest center frequency. 1746 */ 1747 static inline int ieee80211_freq_to_dsss_chan(int freq) 1748 { 1749 if ((freq >= 2410) && (freq < 2475)) 1750 return (freq - 2405) / 5; 1751 else if ((freq >= 2482) && (freq < 2487)) 1752 return 14; 1753 else 1754 return -1; 1755 } 1756 1757 /* Convert IEEE802.11 HR DSSS channel to frequency (MHz) and back 1758 * Ref IEEE 802.11-2007 section 18.4.6.2 1759 * 1760 * The channels and frequencies are the same as those defined for DSSS 1761 */ 1762 #define ieee80211_hr_chan_to_freq(chan) ieee80211_dsss_chan_to_freq(chan) 1763 #define ieee80211_freq_to_hr_chan(freq) ieee80211_freq_to_dsss_chan(freq) 1764 1765 /* Convert IEEE802.11 ERP channel to frequency (MHz) and back 1766 * Ref IEEE 802.11-2007 section 19.4.2 1767 */ 1768 #define ieee80211_erp_chan_to_freq(chan) ieee80211_hr_chan_to_freq(chan) 1769 #define ieee80211_freq_to_erp_chan(freq) ieee80211_freq_to_hr_chan(freq) 1770 1771 /** 1772 * ieee80211_ofdm_chan_to_freq - get channel center frequency 1773 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz 1774 * @channel: the OFDM channel 1775 * 1776 * Convert IEEE802.11 OFDM channel to center frequency (MHz) 1777 * Ref IEEE 802.11-2007 section 17.3.8.3.2 1778 */ 1779 static inline int ieee80211_ofdm_chan_to_freq(int s_freq, int channel) 1780 { 1781 if ((channel > 0) && (channel <= 200) && 1782 (s_freq >= 4000)) 1783 return s_freq + (channel * 5); 1784 else 1785 return -1; 1786 } 1787 1788 /** 1789 * ieee80211_freq_to_ofdm_channel - get channel 1790 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz 1791 * @freq: the frequency 1792 * 1793 * Convert frequency (MHz) to IEEE802.11 OFDM channel 1794 * Ref IEEE 802.11-2007 section 17.3.8.3.2 1795 * 1796 * This routine selects the channel with the closest center frequency. 1797 */ 1798 static inline int ieee80211_freq_to_ofdm_chan(int s_freq, int freq) 1799 { 1800 if ((freq > (s_freq + 2)) && (freq <= (s_freq + 1202)) && 1801 (s_freq >= 4000)) 1802 return (freq + 2 - s_freq) / 5; 1803 else 1804 return -1; 1805 } 1806 1807 /** 1808 * ieee80211_tu_to_usec - convert time units (TU) to microseconds 1809 * @tu: the TUs 1810 */ 1811 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu) 1812 { 1813 return 1024 * tu; 1814 } 1815 1816 /** 1817 * ieee80211_check_tim - check if AID bit is set in TIM 1818 * @tim: the TIM IE 1819 * @tim_len: length of the TIM IE 1820 * @aid: the AID to look for 1821 */ 1822 static inline bool ieee80211_check_tim(struct ieee80211_tim_ie *tim, 1823 u8 tim_len, u16 aid) 1824 { 1825 u8 mask; 1826 u8 index, indexn1, indexn2; 1827 1828 if (unlikely(!tim || tim_len < sizeof(*tim))) 1829 return false; 1830 1831 aid &= 0x3fff; 1832 index = aid / 8; 1833 mask = 1 << (aid & 7); 1834 1835 indexn1 = tim->bitmap_ctrl & 0xfe; 1836 indexn2 = tim_len + indexn1 - 4; 1837 1838 if (index < indexn1 || index > indexn2) 1839 return false; 1840 1841 index -= indexn1; 1842 1843 return !!(tim->virtual_map[index] & mask); 1844 } 1845 1846 #endif /* LINUX_IEEE80211_H */ 1847