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 #define IEEE80211_FCTL_CTL_EXT 0x0f00 51 52 #define IEEE80211_SCTL_FRAG 0x000F 53 #define IEEE80211_SCTL_SEQ 0xFFF0 54 55 #define IEEE80211_FTYPE_MGMT 0x0000 56 #define IEEE80211_FTYPE_CTL 0x0004 57 #define IEEE80211_FTYPE_DATA 0x0008 58 #define IEEE80211_FTYPE_EXT 0x000c 59 60 /* management */ 61 #define IEEE80211_STYPE_ASSOC_REQ 0x0000 62 #define IEEE80211_STYPE_ASSOC_RESP 0x0010 63 #define IEEE80211_STYPE_REASSOC_REQ 0x0020 64 #define IEEE80211_STYPE_REASSOC_RESP 0x0030 65 #define IEEE80211_STYPE_PROBE_REQ 0x0040 66 #define IEEE80211_STYPE_PROBE_RESP 0x0050 67 #define IEEE80211_STYPE_BEACON 0x0080 68 #define IEEE80211_STYPE_ATIM 0x0090 69 #define IEEE80211_STYPE_DISASSOC 0x00A0 70 #define IEEE80211_STYPE_AUTH 0x00B0 71 #define IEEE80211_STYPE_DEAUTH 0x00C0 72 #define IEEE80211_STYPE_ACTION 0x00D0 73 74 /* control */ 75 #define IEEE80211_STYPE_CTL_EXT 0x0060 76 #define IEEE80211_STYPE_BACK_REQ 0x0080 77 #define IEEE80211_STYPE_BACK 0x0090 78 #define IEEE80211_STYPE_PSPOLL 0x00A0 79 #define IEEE80211_STYPE_RTS 0x00B0 80 #define IEEE80211_STYPE_CTS 0x00C0 81 #define IEEE80211_STYPE_ACK 0x00D0 82 #define IEEE80211_STYPE_CFEND 0x00E0 83 #define IEEE80211_STYPE_CFENDACK 0x00F0 84 85 /* data */ 86 #define IEEE80211_STYPE_DATA 0x0000 87 #define IEEE80211_STYPE_DATA_CFACK 0x0010 88 #define IEEE80211_STYPE_DATA_CFPOLL 0x0020 89 #define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030 90 #define IEEE80211_STYPE_NULLFUNC 0x0040 91 #define IEEE80211_STYPE_CFACK 0x0050 92 #define IEEE80211_STYPE_CFPOLL 0x0060 93 #define IEEE80211_STYPE_CFACKPOLL 0x0070 94 #define IEEE80211_STYPE_QOS_DATA 0x0080 95 #define IEEE80211_STYPE_QOS_DATA_CFACK 0x0090 96 #define IEEE80211_STYPE_QOS_DATA_CFPOLL 0x00A0 97 #define IEEE80211_STYPE_QOS_DATA_CFACKPOLL 0x00B0 98 #define IEEE80211_STYPE_QOS_NULLFUNC 0x00C0 99 #define IEEE80211_STYPE_QOS_CFACK 0x00D0 100 #define IEEE80211_STYPE_QOS_CFPOLL 0x00E0 101 #define IEEE80211_STYPE_QOS_CFACKPOLL 0x00F0 102 103 /* extension, added by 802.11ad */ 104 #define IEEE80211_STYPE_DMG_BEACON 0x0000 105 106 /* control extension - for IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTL_EXT */ 107 #define IEEE80211_CTL_EXT_POLL 0x2000 108 #define IEEE80211_CTL_EXT_SPR 0x3000 109 #define IEEE80211_CTL_EXT_GRANT 0x4000 110 #define IEEE80211_CTL_EXT_DMG_CTS 0x5000 111 #define IEEE80211_CTL_EXT_DMG_DTS 0x6000 112 #define IEEE80211_CTL_EXT_SSW 0x8000 113 #define IEEE80211_CTL_EXT_SSW_FBACK 0x9000 114 #define IEEE80211_CTL_EXT_SSW_ACK 0xa000 115 116 /* miscellaneous IEEE 802.11 constants */ 117 #define IEEE80211_MAX_FRAG_THRESHOLD 2352 118 #define IEEE80211_MAX_RTS_THRESHOLD 2353 119 #define IEEE80211_MAX_AID 2007 120 #define IEEE80211_MAX_TIM_LEN 251 121 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section 122 6.2.1.1.2. 123 124 802.11e clarifies the figure in section 7.1.2. The frame body is 125 up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */ 126 #define IEEE80211_MAX_DATA_LEN 2304 127 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */ 128 #define IEEE80211_MAX_FRAME_LEN 2352 129 130 #define IEEE80211_MAX_SSID_LEN 32 131 132 #define IEEE80211_MAX_MESH_ID_LEN 32 133 134 #define IEEE80211_NUM_TIDS 16 135 136 #define IEEE80211_QOS_CTL_LEN 2 137 /* 1d tag mask */ 138 #define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007 139 /* TID mask */ 140 #define IEEE80211_QOS_CTL_TID_MASK 0x000f 141 /* EOSP */ 142 #define IEEE80211_QOS_CTL_EOSP 0x0010 143 /* ACK policy */ 144 #define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL 0x0000 145 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK 0x0020 146 #define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL 0x0040 147 #define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK 0x0060 148 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK 0x0060 149 /* A-MSDU 802.11n */ 150 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT 0x0080 151 /* Mesh Control 802.11s */ 152 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT 0x0100 153 154 /* U-APSD queue for WMM IEs sent by AP */ 155 #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD (1<<7) 156 #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK 0x0f 157 158 /* U-APSD queues for WMM IEs sent by STA */ 159 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO (1<<0) 160 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI (1<<1) 161 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK (1<<2) 162 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE (1<<3) 163 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK 0x0f 164 165 /* U-APSD max SP length for WMM IEs sent by STA */ 166 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 0x00 167 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_2 0x01 168 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_4 0x02 169 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_6 0x03 170 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK 0x03 171 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT 5 172 173 #define IEEE80211_HT_CTL_LEN 4 174 175 struct ieee80211_hdr { 176 __le16 frame_control; 177 __le16 duration_id; 178 u8 addr1[6]; 179 u8 addr2[6]; 180 u8 addr3[6]; 181 __le16 seq_ctrl; 182 u8 addr4[6]; 183 } __attribute__ ((packed)); 184 185 struct ieee80211_hdr_3addr { 186 __le16 frame_control; 187 __le16 duration_id; 188 u8 addr1[6]; 189 u8 addr2[6]; 190 u8 addr3[6]; 191 __le16 seq_ctrl; 192 } __attribute__ ((packed)); 193 194 struct ieee80211_qos_hdr { 195 __le16 frame_control; 196 __le16 duration_id; 197 u8 addr1[6]; 198 u8 addr2[6]; 199 u8 addr3[6]; 200 __le16 seq_ctrl; 201 __le16 qos_ctrl; 202 } __attribute__ ((packed)); 203 204 /** 205 * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set 206 * @fc: frame control bytes in little-endian byteorder 207 */ 208 static inline int ieee80211_has_tods(__le16 fc) 209 { 210 return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0; 211 } 212 213 /** 214 * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set 215 * @fc: frame control bytes in little-endian byteorder 216 */ 217 static inline int ieee80211_has_fromds(__le16 fc) 218 { 219 return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0; 220 } 221 222 /** 223 * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set 224 * @fc: frame control bytes in little-endian byteorder 225 */ 226 static inline int ieee80211_has_a4(__le16 fc) 227 { 228 __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS); 229 return (fc & tmp) == tmp; 230 } 231 232 /** 233 * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set 234 * @fc: frame control bytes in little-endian byteorder 235 */ 236 static inline int ieee80211_has_morefrags(__le16 fc) 237 { 238 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0; 239 } 240 241 /** 242 * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set 243 * @fc: frame control bytes in little-endian byteorder 244 */ 245 static inline int ieee80211_has_retry(__le16 fc) 246 { 247 return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0; 248 } 249 250 /** 251 * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set 252 * @fc: frame control bytes in little-endian byteorder 253 */ 254 static inline int ieee80211_has_pm(__le16 fc) 255 { 256 return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0; 257 } 258 259 /** 260 * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set 261 * @fc: frame control bytes in little-endian byteorder 262 */ 263 static inline int ieee80211_has_moredata(__le16 fc) 264 { 265 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0; 266 } 267 268 /** 269 * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set 270 * @fc: frame control bytes in little-endian byteorder 271 */ 272 static inline int ieee80211_has_protected(__le16 fc) 273 { 274 return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0; 275 } 276 277 /** 278 * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set 279 * @fc: frame control bytes in little-endian byteorder 280 */ 281 static inline int ieee80211_has_order(__le16 fc) 282 { 283 return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0; 284 } 285 286 /** 287 * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT 288 * @fc: frame control bytes in little-endian byteorder 289 */ 290 static inline int ieee80211_is_mgmt(__le16 fc) 291 { 292 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) == 293 cpu_to_le16(IEEE80211_FTYPE_MGMT); 294 } 295 296 /** 297 * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL 298 * @fc: frame control bytes in little-endian byteorder 299 */ 300 static inline int ieee80211_is_ctl(__le16 fc) 301 { 302 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) == 303 cpu_to_le16(IEEE80211_FTYPE_CTL); 304 } 305 306 /** 307 * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA 308 * @fc: frame control bytes in little-endian byteorder 309 */ 310 static inline int ieee80211_is_data(__le16 fc) 311 { 312 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) == 313 cpu_to_le16(IEEE80211_FTYPE_DATA); 314 } 315 316 /** 317 * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set 318 * @fc: frame control bytes in little-endian byteorder 319 */ 320 static inline int ieee80211_is_data_qos(__le16 fc) 321 { 322 /* 323 * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need 324 * to check the one bit 325 */ 326 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) == 327 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA); 328 } 329 330 /** 331 * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data 332 * @fc: frame control bytes in little-endian byteorder 333 */ 334 static inline int ieee80211_is_data_present(__le16 fc) 335 { 336 /* 337 * mask with 0x40 and test that that bit is clear to only return true 338 * for the data-containing substypes. 339 */ 340 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) == 341 cpu_to_le16(IEEE80211_FTYPE_DATA); 342 } 343 344 /** 345 * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ 346 * @fc: frame control bytes in little-endian byteorder 347 */ 348 static inline int ieee80211_is_assoc_req(__le16 fc) 349 { 350 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 351 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ); 352 } 353 354 /** 355 * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP 356 * @fc: frame control bytes in little-endian byteorder 357 */ 358 static inline int ieee80211_is_assoc_resp(__le16 fc) 359 { 360 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 361 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP); 362 } 363 364 /** 365 * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ 366 * @fc: frame control bytes in little-endian byteorder 367 */ 368 static inline int ieee80211_is_reassoc_req(__le16 fc) 369 { 370 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 371 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ); 372 } 373 374 /** 375 * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP 376 * @fc: frame control bytes in little-endian byteorder 377 */ 378 static inline int ieee80211_is_reassoc_resp(__le16 fc) 379 { 380 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 381 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP); 382 } 383 384 /** 385 * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ 386 * @fc: frame control bytes in little-endian byteorder 387 */ 388 static inline int ieee80211_is_probe_req(__le16 fc) 389 { 390 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 391 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ); 392 } 393 394 /** 395 * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP 396 * @fc: frame control bytes in little-endian byteorder 397 */ 398 static inline int ieee80211_is_probe_resp(__le16 fc) 399 { 400 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 401 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP); 402 } 403 404 /** 405 * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON 406 * @fc: frame control bytes in little-endian byteorder 407 */ 408 static inline int ieee80211_is_beacon(__le16 fc) 409 { 410 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 411 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON); 412 } 413 414 /** 415 * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM 416 * @fc: frame control bytes in little-endian byteorder 417 */ 418 static inline int ieee80211_is_atim(__le16 fc) 419 { 420 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 421 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM); 422 } 423 424 /** 425 * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC 426 * @fc: frame control bytes in little-endian byteorder 427 */ 428 static inline int ieee80211_is_disassoc(__le16 fc) 429 { 430 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 431 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC); 432 } 433 434 /** 435 * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH 436 * @fc: frame control bytes in little-endian byteorder 437 */ 438 static inline int ieee80211_is_auth(__le16 fc) 439 { 440 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 441 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH); 442 } 443 444 /** 445 * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH 446 * @fc: frame control bytes in little-endian byteorder 447 */ 448 static inline int ieee80211_is_deauth(__le16 fc) 449 { 450 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 451 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH); 452 } 453 454 /** 455 * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION 456 * @fc: frame control bytes in little-endian byteorder 457 */ 458 static inline int ieee80211_is_action(__le16 fc) 459 { 460 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 461 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION); 462 } 463 464 /** 465 * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ 466 * @fc: frame control bytes in little-endian byteorder 467 */ 468 static inline int ieee80211_is_back_req(__le16 fc) 469 { 470 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 471 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ); 472 } 473 474 /** 475 * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK 476 * @fc: frame control bytes in little-endian byteorder 477 */ 478 static inline int ieee80211_is_back(__le16 fc) 479 { 480 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 481 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK); 482 } 483 484 /** 485 * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL 486 * @fc: frame control bytes in little-endian byteorder 487 */ 488 static inline int ieee80211_is_pspoll(__le16 fc) 489 { 490 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 491 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL); 492 } 493 494 /** 495 * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS 496 * @fc: frame control bytes in little-endian byteorder 497 */ 498 static inline int ieee80211_is_rts(__le16 fc) 499 { 500 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 501 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS); 502 } 503 504 /** 505 * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS 506 * @fc: frame control bytes in little-endian byteorder 507 */ 508 static inline int ieee80211_is_cts(__le16 fc) 509 { 510 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 511 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS); 512 } 513 514 /** 515 * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK 516 * @fc: frame control bytes in little-endian byteorder 517 */ 518 static inline int ieee80211_is_ack(__le16 fc) 519 { 520 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 521 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK); 522 } 523 524 /** 525 * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND 526 * @fc: frame control bytes in little-endian byteorder 527 */ 528 static inline int ieee80211_is_cfend(__le16 fc) 529 { 530 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 531 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND); 532 } 533 534 /** 535 * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK 536 * @fc: frame control bytes in little-endian byteorder 537 */ 538 static inline int ieee80211_is_cfendack(__le16 fc) 539 { 540 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 541 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK); 542 } 543 544 /** 545 * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame 546 * @fc: frame control bytes in little-endian byteorder 547 */ 548 static inline int ieee80211_is_nullfunc(__le16 fc) 549 { 550 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 551 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC); 552 } 553 554 /** 555 * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame 556 * @fc: frame control bytes in little-endian byteorder 557 */ 558 static inline int ieee80211_is_qos_nullfunc(__le16 fc) 559 { 560 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 561 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC); 562 } 563 564 /** 565 * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set 566 * @seq_ctrl: frame sequence control bytes in little-endian byteorder 567 */ 568 static inline int ieee80211_is_first_frag(__le16 seq_ctrl) 569 { 570 return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0; 571 } 572 573 struct ieee80211s_hdr { 574 u8 flags; 575 u8 ttl; 576 __le32 seqnum; 577 u8 eaddr1[6]; 578 u8 eaddr2[6]; 579 } __attribute__ ((packed)); 580 581 /* Mesh flags */ 582 #define MESH_FLAGS_AE_A4 0x1 583 #define MESH_FLAGS_AE_A5_A6 0x2 584 #define MESH_FLAGS_AE 0x3 585 #define MESH_FLAGS_PS_DEEP 0x4 586 587 /** 588 * enum ieee80211_preq_flags - mesh PREQ element flags 589 * 590 * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield 591 */ 592 enum ieee80211_preq_flags { 593 IEEE80211_PREQ_PROACTIVE_PREP_FLAG = 1<<2, 594 }; 595 596 /** 597 * enum ieee80211_preq_target_flags - mesh PREQ element per target flags 598 * 599 * @IEEE80211_PREQ_TO_FLAG: target only subfield 600 * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield 601 */ 602 enum ieee80211_preq_target_flags { 603 IEEE80211_PREQ_TO_FLAG = 1<<0, 604 IEEE80211_PREQ_USN_FLAG = 1<<2, 605 }; 606 607 /** 608 * struct ieee80211_quiet_ie 609 * 610 * This structure refers to "Quiet information element" 611 */ 612 struct ieee80211_quiet_ie { 613 u8 count; 614 u8 period; 615 __le16 duration; 616 __le16 offset; 617 } __attribute__ ((packed)); 618 619 /** 620 * struct ieee80211_msrment_ie 621 * 622 * This structure refers to "Measurement Request/Report information element" 623 */ 624 struct ieee80211_msrment_ie { 625 u8 token; 626 u8 mode; 627 u8 type; 628 u8 request[0]; 629 } __attribute__ ((packed)); 630 631 /** 632 * struct ieee80211_channel_sw_ie 633 * 634 * This structure refers to "Channel Switch Announcement information element" 635 */ 636 struct ieee80211_channel_sw_ie { 637 u8 mode; 638 u8 new_ch_num; 639 u8 count; 640 } __attribute__ ((packed)); 641 642 /** 643 * struct ieee80211_tim 644 * 645 * This structure refers to "Traffic Indication Map information element" 646 */ 647 struct ieee80211_tim_ie { 648 u8 dtim_count; 649 u8 dtim_period; 650 u8 bitmap_ctrl; 651 /* variable size: 1 - 251 bytes */ 652 u8 virtual_map[1]; 653 } __attribute__ ((packed)); 654 655 /** 656 * struct ieee80211_meshconf_ie 657 * 658 * This structure refers to "Mesh Configuration information element" 659 */ 660 struct ieee80211_meshconf_ie { 661 u8 meshconf_psel; 662 u8 meshconf_pmetric; 663 u8 meshconf_congest; 664 u8 meshconf_synch; 665 u8 meshconf_auth; 666 u8 meshconf_form; 667 u8 meshconf_cap; 668 } __attribute__ ((packed)); 669 670 /** 671 * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags 672 * 673 * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish 674 * additional mesh peerings with other mesh STAs 675 * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs 676 * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure 677 * is ongoing 678 */ 679 enum mesh_config_capab_flags { 680 IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS = 0x01, 681 IEEE80211_MESHCONF_CAPAB_FORWARDING = 0x08, 682 IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING = 0x20, 683 }; 684 685 /** 686 * struct ieee80211_rann_ie 687 * 688 * This structure refers to "Root Announcement information element" 689 */ 690 struct ieee80211_rann_ie { 691 u8 rann_flags; 692 u8 rann_hopcount; 693 u8 rann_ttl; 694 u8 rann_addr[6]; 695 __le32 rann_seq; 696 __le32 rann_interval; 697 __le32 rann_metric; 698 } __attribute__ ((packed)); 699 700 enum ieee80211_rann_flags { 701 RANN_FLAG_IS_GATE = 1 << 0, 702 }; 703 704 #define WLAN_SA_QUERY_TR_ID_LEN 2 705 706 struct ieee80211_mgmt { 707 __le16 frame_control; 708 __le16 duration; 709 u8 da[6]; 710 u8 sa[6]; 711 u8 bssid[6]; 712 __le16 seq_ctrl; 713 union { 714 struct { 715 __le16 auth_alg; 716 __le16 auth_transaction; 717 __le16 status_code; 718 /* possibly followed by Challenge text */ 719 u8 variable[0]; 720 } __attribute__ ((packed)) auth; 721 struct { 722 __le16 reason_code; 723 } __attribute__ ((packed)) deauth; 724 struct { 725 __le16 capab_info; 726 __le16 listen_interval; 727 /* followed by SSID and Supported rates */ 728 u8 variable[0]; 729 } __attribute__ ((packed)) assoc_req; 730 struct { 731 __le16 capab_info; 732 __le16 status_code; 733 __le16 aid; 734 /* followed by Supported rates */ 735 u8 variable[0]; 736 } __attribute__ ((packed)) assoc_resp, reassoc_resp; 737 struct { 738 __le16 capab_info; 739 __le16 listen_interval; 740 u8 current_ap[6]; 741 /* followed by SSID and Supported rates */ 742 u8 variable[0]; 743 } __attribute__ ((packed)) reassoc_req; 744 struct { 745 __le16 reason_code; 746 } __attribute__ ((packed)) disassoc; 747 struct { 748 __le64 timestamp; 749 __le16 beacon_int; 750 __le16 capab_info; 751 /* followed by some of SSID, Supported rates, 752 * FH Params, DS Params, CF Params, IBSS Params, TIM */ 753 u8 variable[0]; 754 } __attribute__ ((packed)) beacon; 755 struct { 756 /* only variable items: SSID, Supported rates */ 757 u8 variable[0]; 758 } __attribute__ ((packed)) probe_req; 759 struct { 760 __le64 timestamp; 761 __le16 beacon_int; 762 __le16 capab_info; 763 /* followed by some of SSID, Supported rates, 764 * FH Params, DS Params, CF Params, IBSS Params */ 765 u8 variable[0]; 766 } __attribute__ ((packed)) probe_resp; 767 struct { 768 u8 category; 769 union { 770 struct { 771 u8 action_code; 772 u8 dialog_token; 773 u8 status_code; 774 u8 variable[0]; 775 } __attribute__ ((packed)) wme_action; 776 struct{ 777 u8 action_code; 778 u8 element_id; 779 u8 length; 780 struct ieee80211_channel_sw_ie sw_elem; 781 } __attribute__((packed)) chan_switch; 782 struct{ 783 u8 action_code; 784 u8 dialog_token; 785 u8 element_id; 786 u8 length; 787 struct ieee80211_msrment_ie msr_elem; 788 } __attribute__((packed)) measurement; 789 struct{ 790 u8 action_code; 791 u8 dialog_token; 792 __le16 capab; 793 __le16 timeout; 794 __le16 start_seq_num; 795 } __attribute__((packed)) addba_req; 796 struct{ 797 u8 action_code; 798 u8 dialog_token; 799 __le16 status; 800 __le16 capab; 801 __le16 timeout; 802 } __attribute__((packed)) addba_resp; 803 struct{ 804 u8 action_code; 805 __le16 params; 806 __le16 reason_code; 807 } __attribute__((packed)) delba; 808 struct { 809 u8 action_code; 810 u8 variable[0]; 811 } __attribute__((packed)) self_prot; 812 struct{ 813 u8 action_code; 814 u8 variable[0]; 815 } __attribute__((packed)) mesh_action; 816 struct { 817 u8 action; 818 u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN]; 819 } __attribute__ ((packed)) sa_query; 820 struct { 821 u8 action; 822 u8 smps_control; 823 } __attribute__ ((packed)) ht_smps; 824 struct { 825 u8 action_code; 826 u8 dialog_token; 827 __le16 capability; 828 u8 variable[0]; 829 } __packed tdls_discover_resp; 830 } u; 831 } __attribute__ ((packed)) action; 832 } u; 833 } __attribute__ ((packed)); 834 835 /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */ 836 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY 127 837 838 /* mgmt header + 1 byte category code */ 839 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u) 840 841 842 /* Management MIC information element (IEEE 802.11w) */ 843 struct ieee80211_mmie { 844 u8 element_id; 845 u8 length; 846 __le16 key_id; 847 u8 sequence_number[6]; 848 u8 mic[8]; 849 } __attribute__ ((packed)); 850 851 struct ieee80211_vendor_ie { 852 u8 element_id; 853 u8 len; 854 u8 oui[3]; 855 u8 oui_type; 856 } __packed; 857 858 /* Control frames */ 859 struct ieee80211_rts { 860 __le16 frame_control; 861 __le16 duration; 862 u8 ra[6]; 863 u8 ta[6]; 864 } __attribute__ ((packed)); 865 866 struct ieee80211_cts { 867 __le16 frame_control; 868 __le16 duration; 869 u8 ra[6]; 870 } __attribute__ ((packed)); 871 872 struct ieee80211_pspoll { 873 __le16 frame_control; 874 __le16 aid; 875 u8 bssid[6]; 876 u8 ta[6]; 877 } __attribute__ ((packed)); 878 879 /* TDLS */ 880 881 /* Link-id information element */ 882 struct ieee80211_tdls_lnkie { 883 u8 ie_type; /* Link Identifier IE */ 884 u8 ie_len; 885 u8 bssid[6]; 886 u8 init_sta[6]; 887 u8 resp_sta[6]; 888 } __packed; 889 890 struct ieee80211_tdls_data { 891 u8 da[6]; 892 u8 sa[6]; 893 __be16 ether_type; 894 u8 payload_type; 895 u8 category; 896 u8 action_code; 897 union { 898 struct { 899 u8 dialog_token; 900 __le16 capability; 901 u8 variable[0]; 902 } __packed setup_req; 903 struct { 904 __le16 status_code; 905 u8 dialog_token; 906 __le16 capability; 907 u8 variable[0]; 908 } __packed setup_resp; 909 struct { 910 __le16 status_code; 911 u8 dialog_token; 912 u8 variable[0]; 913 } __packed setup_cfm; 914 struct { 915 __le16 reason_code; 916 u8 variable[0]; 917 } __packed teardown; 918 struct { 919 u8 dialog_token; 920 u8 variable[0]; 921 } __packed discover_req; 922 } u; 923 } __packed; 924 925 /* 926 * Peer-to-Peer IE attribute related definitions. 927 */ 928 /** 929 * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute. 930 */ 931 enum ieee80211_p2p_attr_id { 932 IEEE80211_P2P_ATTR_STATUS = 0, 933 IEEE80211_P2P_ATTR_MINOR_REASON, 934 IEEE80211_P2P_ATTR_CAPABILITY, 935 IEEE80211_P2P_ATTR_DEVICE_ID, 936 IEEE80211_P2P_ATTR_GO_INTENT, 937 IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT, 938 IEEE80211_P2P_ATTR_LISTEN_CHANNEL, 939 IEEE80211_P2P_ATTR_GROUP_BSSID, 940 IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING, 941 IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR, 942 IEEE80211_P2P_ATTR_MANAGABILITY, 943 IEEE80211_P2P_ATTR_CHANNEL_LIST, 944 IEEE80211_P2P_ATTR_ABSENCE_NOTICE, 945 IEEE80211_P2P_ATTR_DEVICE_INFO, 946 IEEE80211_P2P_ATTR_GROUP_INFO, 947 IEEE80211_P2P_ATTR_GROUP_ID, 948 IEEE80211_P2P_ATTR_INTERFACE, 949 IEEE80211_P2P_ATTR_OPER_CHANNEL, 950 IEEE80211_P2P_ATTR_INVITE_FLAGS, 951 /* 19 - 220: Reserved */ 952 IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221, 953 954 IEEE80211_P2P_ATTR_MAX 955 }; 956 957 /** 958 * struct ieee80211_bar - HT Block Ack Request 959 * 960 * This structure refers to "HT BlockAckReq" as 961 * described in 802.11n draft section 7.2.1.7.1 962 */ 963 struct ieee80211_bar { 964 __le16 frame_control; 965 __le16 duration; 966 __u8 ra[6]; 967 __u8 ta[6]; 968 __le16 control; 969 __le16 start_seq_num; 970 } __attribute__((packed)); 971 972 /* 802.11 BAR control masks */ 973 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000 974 #define IEEE80211_BAR_CTRL_MULTI_TID 0x0002 975 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004 976 #define IEEE80211_BAR_CTRL_TID_INFO_MASK 0xf000 977 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT 12 978 979 #define IEEE80211_HT_MCS_MASK_LEN 10 980 981 /** 982 * struct ieee80211_mcs_info - MCS information 983 * @rx_mask: RX mask 984 * @rx_highest: highest supported RX rate. If set represents 985 * the highest supported RX data rate in units of 1 Mbps. 986 * If this field is 0 this value should not be used to 987 * consider the highest RX data rate supported. 988 * @tx_params: TX parameters 989 */ 990 struct ieee80211_mcs_info { 991 u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN]; 992 __le16 rx_highest; 993 u8 tx_params; 994 u8 reserved[3]; 995 } __attribute__((packed)); 996 997 /* 802.11n HT capability MSC set */ 998 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff 999 #define IEEE80211_HT_MCS_TX_DEFINED 0x01 1000 #define IEEE80211_HT_MCS_TX_RX_DIFF 0x02 1001 /* value 0 == 1 stream etc */ 1002 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0C 1003 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2 1004 #define IEEE80211_HT_MCS_TX_MAX_STREAMS 4 1005 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION 0x10 1006 1007 /* 1008 * 802.11n D5.0 20.3.5 / 20.6 says: 1009 * - indices 0 to 7 and 32 are single spatial stream 1010 * - 8 to 31 are multiple spatial streams using equal modulation 1011 * [8..15 for two streams, 16..23 for three and 24..31 for four] 1012 * - remainder are multiple spatial streams using unequal modulation 1013 */ 1014 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33 1015 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \ 1016 (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8) 1017 1018 /** 1019 * struct ieee80211_ht_cap - HT capabilities 1020 * 1021 * This structure is the "HT capabilities element" as 1022 * described in 802.11n D5.0 7.3.2.57 1023 */ 1024 struct ieee80211_ht_cap { 1025 __le16 cap_info; 1026 u8 ampdu_params_info; 1027 1028 /* 16 bytes MCS information */ 1029 struct ieee80211_mcs_info mcs; 1030 1031 __le16 extended_ht_cap_info; 1032 __le32 tx_BF_cap_info; 1033 u8 antenna_selection_info; 1034 } __attribute__ ((packed)); 1035 1036 /* 802.11n HT capabilities masks (for cap_info) */ 1037 #define IEEE80211_HT_CAP_LDPC_CODING 0x0001 1038 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40 0x0002 1039 #define IEEE80211_HT_CAP_SM_PS 0x000C 1040 #define IEEE80211_HT_CAP_SM_PS_SHIFT 2 1041 #define IEEE80211_HT_CAP_GRN_FLD 0x0010 1042 #define IEEE80211_HT_CAP_SGI_20 0x0020 1043 #define IEEE80211_HT_CAP_SGI_40 0x0040 1044 #define IEEE80211_HT_CAP_TX_STBC 0x0080 1045 #define IEEE80211_HT_CAP_RX_STBC 0x0300 1046 #define IEEE80211_HT_CAP_RX_STBC_SHIFT 8 1047 #define IEEE80211_HT_CAP_DELAY_BA 0x0400 1048 #define IEEE80211_HT_CAP_MAX_AMSDU 0x0800 1049 #define IEEE80211_HT_CAP_DSSSCCK40 0x1000 1050 #define IEEE80211_HT_CAP_RESERVED 0x2000 1051 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT 0x4000 1052 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT 0x8000 1053 1054 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */ 1055 #define IEEE80211_HT_EXT_CAP_PCO 0x0001 1056 #define IEEE80211_HT_EXT_CAP_PCO_TIME 0x0006 1057 #define IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT 1 1058 #define IEEE80211_HT_EXT_CAP_MCS_FB 0x0300 1059 #define IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT 8 1060 #define IEEE80211_HT_EXT_CAP_HTC_SUP 0x0400 1061 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER 0x0800 1062 1063 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */ 1064 #define IEEE80211_HT_AMPDU_PARM_FACTOR 0x03 1065 #define IEEE80211_HT_AMPDU_PARM_DENSITY 0x1C 1066 #define IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT 2 1067 1068 /* 1069 * Maximum length of AMPDU that the STA can receive. 1070 * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets) 1071 */ 1072 enum ieee80211_max_ampdu_length_exp { 1073 IEEE80211_HT_MAX_AMPDU_8K = 0, 1074 IEEE80211_HT_MAX_AMPDU_16K = 1, 1075 IEEE80211_HT_MAX_AMPDU_32K = 2, 1076 IEEE80211_HT_MAX_AMPDU_64K = 3 1077 }; 1078 1079 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13 1080 1081 /* Minimum MPDU start spacing */ 1082 enum ieee80211_min_mpdu_spacing { 1083 IEEE80211_HT_MPDU_DENSITY_NONE = 0, /* No restriction */ 1084 IEEE80211_HT_MPDU_DENSITY_0_25 = 1, /* 1/4 usec */ 1085 IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 usec */ 1086 IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 usec */ 1087 IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 usec */ 1088 IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4 usec */ 1089 IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8 usec */ 1090 IEEE80211_HT_MPDU_DENSITY_16 = 7 /* 16 usec */ 1091 }; 1092 1093 /** 1094 * struct ieee80211_ht_operation - HT operation IE 1095 * 1096 * This structure is the "HT operation element" as 1097 * described in 802.11n-2009 7.3.2.57 1098 */ 1099 struct ieee80211_ht_operation { 1100 u8 primary_chan; 1101 u8 ht_param; 1102 __le16 operation_mode; 1103 __le16 stbc_param; 1104 u8 basic_set[16]; 1105 } __attribute__ ((packed)); 1106 1107 /* for ht_param */ 1108 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET 0x03 1109 #define IEEE80211_HT_PARAM_CHA_SEC_NONE 0x00 1110 #define IEEE80211_HT_PARAM_CHA_SEC_ABOVE 0x01 1111 #define IEEE80211_HT_PARAM_CHA_SEC_BELOW 0x03 1112 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY 0x04 1113 #define IEEE80211_HT_PARAM_RIFS_MODE 0x08 1114 1115 /* for operation_mode */ 1116 #define IEEE80211_HT_OP_MODE_PROTECTION 0x0003 1117 #define IEEE80211_HT_OP_MODE_PROTECTION_NONE 0 1118 #define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER 1 1119 #define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ 2 1120 #define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED 3 1121 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT 0x0004 1122 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT 0x0010 1123 1124 /* for stbc_param */ 1125 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON 0x0040 1126 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080 1127 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON 0x0100 1128 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT 0x0200 1129 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE 0x0400 1130 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE 0x0800 1131 1132 1133 /* block-ack parameters */ 1134 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002 1135 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C 1136 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0 1137 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000 1138 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800 1139 1140 /* 1141 * A-PMDU buffer sizes 1142 * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2) 1143 */ 1144 #define IEEE80211_MIN_AMPDU_BUF 0x8 1145 #define IEEE80211_MAX_AMPDU_BUF 0x40 1146 1147 1148 /* Spatial Multiplexing Power Save Modes (for capability) */ 1149 #define WLAN_HT_CAP_SM_PS_STATIC 0 1150 #define WLAN_HT_CAP_SM_PS_DYNAMIC 1 1151 #define WLAN_HT_CAP_SM_PS_INVALID 2 1152 #define WLAN_HT_CAP_SM_PS_DISABLED 3 1153 1154 /* for SM power control field lower two bits */ 1155 #define WLAN_HT_SMPS_CONTROL_DISABLED 0 1156 #define WLAN_HT_SMPS_CONTROL_STATIC 1 1157 #define WLAN_HT_SMPS_CONTROL_DYNAMIC 3 1158 1159 /** 1160 * struct ieee80211_vht_mcs_info - VHT MCS information 1161 * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams 1162 * @rx_highest: Indicates highest long GI VHT PPDU data rate 1163 * STA can receive. Rate expressed in units of 1 Mbps. 1164 * If this field is 0 this value should not be used to 1165 * consider the highest RX data rate supported. 1166 * The top 3 bits of this field are reserved. 1167 * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams 1168 * @tx_highest: Indicates highest long GI VHT PPDU data rate 1169 * STA can transmit. Rate expressed in units of 1 Mbps. 1170 * If this field is 0 this value should not be used to 1171 * consider the highest TX data rate supported. 1172 * The top 3 bits of this field are reserved. 1173 */ 1174 struct ieee80211_vht_mcs_info { 1175 __le16 rx_mcs_map; 1176 __le16 rx_highest; 1177 __le16 tx_mcs_map; 1178 __le16 tx_highest; 1179 } __packed; 1180 1181 /** 1182 * enum ieee80211_vht_mcs_support - VHT MCS support definitions 1183 * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the 1184 * number of streams 1185 * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported 1186 * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported 1187 * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported 1188 * 1189 * These definitions are used in each 2-bit subfield of the @rx_mcs_map 1190 * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are 1191 * both split into 8 subfields by number of streams. These values indicate 1192 * which MCSes are supported for the number of streams the value appears 1193 * for. 1194 */ 1195 enum ieee80211_vht_mcs_support { 1196 IEEE80211_VHT_MCS_SUPPORT_0_7 = 0, 1197 IEEE80211_VHT_MCS_SUPPORT_0_8 = 1, 1198 IEEE80211_VHT_MCS_SUPPORT_0_9 = 2, 1199 IEEE80211_VHT_MCS_NOT_SUPPORTED = 3, 1200 }; 1201 1202 /** 1203 * struct ieee80211_vht_cap - VHT capabilities 1204 * 1205 * This structure is the "VHT capabilities element" as 1206 * described in 802.11ac D3.0 8.4.2.160 1207 * @vht_cap_info: VHT capability info 1208 * @supp_mcs: VHT MCS supported rates 1209 */ 1210 struct ieee80211_vht_cap { 1211 __le32 vht_cap_info; 1212 struct ieee80211_vht_mcs_info supp_mcs; 1213 } __packed; 1214 1215 /** 1216 * enum ieee80211_vht_chanwidth - VHT channel width 1217 * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to 1218 * determine the channel width (20 or 40 MHz) 1219 * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth 1220 * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth 1221 * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth 1222 */ 1223 enum ieee80211_vht_chanwidth { 1224 IEEE80211_VHT_CHANWIDTH_USE_HT = 0, 1225 IEEE80211_VHT_CHANWIDTH_80MHZ = 1, 1226 IEEE80211_VHT_CHANWIDTH_160MHZ = 2, 1227 IEEE80211_VHT_CHANWIDTH_80P80MHZ = 3, 1228 }; 1229 1230 /** 1231 * struct ieee80211_vht_operation - VHT operation IE 1232 * 1233 * This structure is the "VHT operation element" as 1234 * described in 802.11ac D3.0 8.4.2.161 1235 * @chan_width: Operating channel width 1236 * @center_freq_seg1_idx: center freq segment 1 index 1237 * @center_freq_seg2_idx: center freq segment 2 index 1238 * @basic_mcs_set: VHT Basic MCS rate set 1239 */ 1240 struct ieee80211_vht_operation { 1241 u8 chan_width; 1242 u8 center_freq_seg1_idx; 1243 u8 center_freq_seg2_idx; 1244 __le16 basic_mcs_set; 1245 } __packed; 1246 1247 1248 #define IEEE80211_VHT_MCS_ZERO_TO_SEVEN_SUPPORT 0 1249 #define IEEE80211_VHT_MCS_ZERO_TO_EIGHT_SUPPORT 1 1250 #define IEEE80211_VHT_MCS_ZERO_TO_NINE_SUPPORT 2 1251 #define IEEE80211_VHT_MCS_NOT_SUPPORTED 3 1252 1253 /* 802.11ac VHT Capabilities */ 1254 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 0x00000000 1255 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 0x00000001 1256 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 0x00000002 1257 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ 0x00000004 1258 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ 0x00000008 1259 #define IEEE80211_VHT_CAP_RXLDPC 0x00000010 1260 #define IEEE80211_VHT_CAP_SHORT_GI_80 0x00000020 1261 #define IEEE80211_VHT_CAP_SHORT_GI_160 0x00000040 1262 #define IEEE80211_VHT_CAP_TXSTBC 0x00000080 1263 #define IEEE80211_VHT_CAP_RXSTBC_1 0x00000100 1264 #define IEEE80211_VHT_CAP_RXSTBC_2 0x00000200 1265 #define IEEE80211_VHT_CAP_RXSTBC_3 0x00000300 1266 #define IEEE80211_VHT_CAP_RXSTBC_4 0x00000400 1267 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE 0x00000800 1268 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE 0x00001000 1269 #define IEEE80211_VHT_CAP_BEAMFORMER_ANTENNAS_MAX 0x00006000 1270 #define IEEE80211_VHT_CAP_SOUNDING_DIMENTION_MAX 0x00030000 1271 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE 0x00080000 1272 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE 0x00100000 1273 #define IEEE80211_VHT_CAP_VHT_TXOP_PS 0x00200000 1274 #define IEEE80211_VHT_CAP_HTC_VHT 0x00400000 1275 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT 23 1276 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK \ 1277 (7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT) 1278 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB 0x08000000 1279 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB 0x0c000000 1280 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN 0x10000000 1281 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN 0x20000000 1282 1283 /* Authentication algorithms */ 1284 #define WLAN_AUTH_OPEN 0 1285 #define WLAN_AUTH_SHARED_KEY 1 1286 #define WLAN_AUTH_FT 2 1287 #define WLAN_AUTH_SAE 3 1288 #define WLAN_AUTH_LEAP 128 1289 1290 #define WLAN_AUTH_CHALLENGE_LEN 128 1291 1292 #define WLAN_CAPABILITY_ESS (1<<0) 1293 #define WLAN_CAPABILITY_IBSS (1<<1) 1294 1295 /* 1296 * A mesh STA sets the ESS and IBSS capability bits to zero. 1297 * however, this holds true for p2p probe responses (in the p2p_find 1298 * phase) as well. 1299 */ 1300 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \ 1301 (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS))) 1302 1303 #define WLAN_CAPABILITY_CF_POLLABLE (1<<2) 1304 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3) 1305 #define WLAN_CAPABILITY_PRIVACY (1<<4) 1306 #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5) 1307 #define WLAN_CAPABILITY_PBCC (1<<6) 1308 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7) 1309 1310 /* 802.11h */ 1311 #define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8) 1312 #define WLAN_CAPABILITY_QOS (1<<9) 1313 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10) 1314 #define WLAN_CAPABILITY_DSSS_OFDM (1<<13) 1315 1316 /* DMG (60gHz) 802.11ad */ 1317 /* type - bits 0..1 */ 1318 #define WLAN_CAPABILITY_DMG_TYPE_IBSS (1<<0) /* Tx by: STA */ 1319 #define WLAN_CAPABILITY_DMG_TYPE_PBSS (2<<0) /* Tx by: PCP */ 1320 #define WLAN_CAPABILITY_DMG_TYPE_AP (3<<0) /* Tx by: AP */ 1321 1322 #define WLAN_CAPABILITY_DMG_CBAP_ONLY (1<<2) 1323 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE (1<<3) 1324 #define WLAN_CAPABILITY_DMG_PRIVACY (1<<4) 1325 #define WLAN_CAPABILITY_DMG_ECPAC (1<<5) 1326 1327 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT (1<<8) 1328 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE (1<<12) 1329 1330 /* measurement */ 1331 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE (1<<0) 1332 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE (1<<1) 1333 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED (1<<2) 1334 1335 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC 0 1336 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA 1 1337 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI 2 1338 1339 /* 802.11g ERP information element */ 1340 #define WLAN_ERP_NON_ERP_PRESENT (1<<0) 1341 #define WLAN_ERP_USE_PROTECTION (1<<1) 1342 #define WLAN_ERP_BARKER_PREAMBLE (1<<2) 1343 1344 /* WLAN_ERP_BARKER_PREAMBLE values */ 1345 enum { 1346 WLAN_ERP_PREAMBLE_SHORT = 0, 1347 WLAN_ERP_PREAMBLE_LONG = 1, 1348 }; 1349 1350 /* Band ID, 802.11ad #8.4.1.45 */ 1351 enum { 1352 IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */ 1353 IEEE80211_BANDID_SUB1 = 1, /* Sub-1 GHz (excluding TV white spaces) */ 1354 IEEE80211_BANDID_2G = 2, /* 2.4 GHz */ 1355 IEEE80211_BANDID_3G = 3, /* 3.6 GHz */ 1356 IEEE80211_BANDID_5G = 4, /* 4.9 and 5 GHz */ 1357 IEEE80211_BANDID_60G = 5, /* 60 GHz */ 1358 }; 1359 1360 /* Status codes */ 1361 enum ieee80211_statuscode { 1362 WLAN_STATUS_SUCCESS = 0, 1363 WLAN_STATUS_UNSPECIFIED_FAILURE = 1, 1364 WLAN_STATUS_CAPS_UNSUPPORTED = 10, 1365 WLAN_STATUS_REASSOC_NO_ASSOC = 11, 1366 WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12, 1367 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13, 1368 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14, 1369 WLAN_STATUS_CHALLENGE_FAIL = 15, 1370 WLAN_STATUS_AUTH_TIMEOUT = 16, 1371 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17, 1372 WLAN_STATUS_ASSOC_DENIED_RATES = 18, 1373 /* 802.11b */ 1374 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19, 1375 WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20, 1376 WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21, 1377 /* 802.11h */ 1378 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22, 1379 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23, 1380 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24, 1381 /* 802.11g */ 1382 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25, 1383 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26, 1384 /* 802.11w */ 1385 WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30, 1386 WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31, 1387 /* 802.11i */ 1388 WLAN_STATUS_INVALID_IE = 40, 1389 WLAN_STATUS_INVALID_GROUP_CIPHER = 41, 1390 WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42, 1391 WLAN_STATUS_INVALID_AKMP = 43, 1392 WLAN_STATUS_UNSUPP_RSN_VERSION = 44, 1393 WLAN_STATUS_INVALID_RSN_IE_CAP = 45, 1394 WLAN_STATUS_CIPHER_SUITE_REJECTED = 46, 1395 /* 802.11e */ 1396 WLAN_STATUS_UNSPECIFIED_QOS = 32, 1397 WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33, 1398 WLAN_STATUS_ASSOC_DENIED_LOWACK = 34, 1399 WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35, 1400 WLAN_STATUS_REQUEST_DECLINED = 37, 1401 WLAN_STATUS_INVALID_QOS_PARAM = 38, 1402 WLAN_STATUS_CHANGE_TSPEC = 39, 1403 WLAN_STATUS_WAIT_TS_DELAY = 47, 1404 WLAN_STATUS_NO_DIRECT_LINK = 48, 1405 WLAN_STATUS_STA_NOT_PRESENT = 49, 1406 WLAN_STATUS_STA_NOT_QSTA = 50, 1407 /* 802.11s */ 1408 WLAN_STATUS_ANTI_CLOG_REQUIRED = 76, 1409 WLAN_STATUS_FCG_NOT_SUPP = 78, 1410 WLAN_STATUS_STA_NO_TBTT = 78, 1411 /* 802.11ad */ 1412 WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39, 1413 WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47, 1414 WLAN_STATUS_REJECT_WITH_SCHEDULE = 83, 1415 WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86, 1416 WLAN_STATUS_PERFORMING_FST_NOW = 87, 1417 WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88, 1418 WLAN_STATUS_REJECT_U_PID_SETTING = 89, 1419 WLAN_STATUS_REJECT_DSE_BAND = 96, 1420 WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99, 1421 WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103, 1422 }; 1423 1424 1425 /* Reason codes */ 1426 enum ieee80211_reasoncode { 1427 WLAN_REASON_UNSPECIFIED = 1, 1428 WLAN_REASON_PREV_AUTH_NOT_VALID = 2, 1429 WLAN_REASON_DEAUTH_LEAVING = 3, 1430 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4, 1431 WLAN_REASON_DISASSOC_AP_BUSY = 5, 1432 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6, 1433 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7, 1434 WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8, 1435 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9, 1436 /* 802.11h */ 1437 WLAN_REASON_DISASSOC_BAD_POWER = 10, 1438 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11, 1439 /* 802.11i */ 1440 WLAN_REASON_INVALID_IE = 13, 1441 WLAN_REASON_MIC_FAILURE = 14, 1442 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15, 1443 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16, 1444 WLAN_REASON_IE_DIFFERENT = 17, 1445 WLAN_REASON_INVALID_GROUP_CIPHER = 18, 1446 WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19, 1447 WLAN_REASON_INVALID_AKMP = 20, 1448 WLAN_REASON_UNSUPP_RSN_VERSION = 21, 1449 WLAN_REASON_INVALID_RSN_IE_CAP = 22, 1450 WLAN_REASON_IEEE8021X_FAILED = 23, 1451 WLAN_REASON_CIPHER_SUITE_REJECTED = 24, 1452 /* 802.11e */ 1453 WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32, 1454 WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33, 1455 WLAN_REASON_DISASSOC_LOW_ACK = 34, 1456 WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35, 1457 WLAN_REASON_QSTA_LEAVE_QBSS = 36, 1458 WLAN_REASON_QSTA_NOT_USE = 37, 1459 WLAN_REASON_QSTA_REQUIRE_SETUP = 38, 1460 WLAN_REASON_QSTA_TIMEOUT = 39, 1461 WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45, 1462 /* 802.11s */ 1463 WLAN_REASON_MESH_PEER_CANCELED = 52, 1464 WLAN_REASON_MESH_MAX_PEERS = 53, 1465 WLAN_REASON_MESH_CONFIG = 54, 1466 WLAN_REASON_MESH_CLOSE = 55, 1467 WLAN_REASON_MESH_MAX_RETRIES = 56, 1468 WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57, 1469 WLAN_REASON_MESH_INVALID_GTK = 58, 1470 WLAN_REASON_MESH_INCONSISTENT_PARAM = 59, 1471 WLAN_REASON_MESH_INVALID_SECURITY = 60, 1472 WLAN_REASON_MESH_PATH_ERROR = 61, 1473 WLAN_REASON_MESH_PATH_NOFORWARD = 62, 1474 WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63, 1475 WLAN_REASON_MAC_EXISTS_IN_MBSS = 64, 1476 WLAN_REASON_MESH_CHAN_REGULATORY = 65, 1477 WLAN_REASON_MESH_CHAN = 66, 1478 }; 1479 1480 1481 /* Information Element IDs */ 1482 enum ieee80211_eid { 1483 WLAN_EID_SSID = 0, 1484 WLAN_EID_SUPP_RATES = 1, 1485 WLAN_EID_FH_PARAMS = 2, 1486 WLAN_EID_DS_PARAMS = 3, 1487 WLAN_EID_CF_PARAMS = 4, 1488 WLAN_EID_TIM = 5, 1489 WLAN_EID_IBSS_PARAMS = 6, 1490 WLAN_EID_CHALLENGE = 16, 1491 1492 WLAN_EID_COUNTRY = 7, 1493 WLAN_EID_HP_PARAMS = 8, 1494 WLAN_EID_HP_TABLE = 9, 1495 WLAN_EID_REQUEST = 10, 1496 1497 WLAN_EID_QBSS_LOAD = 11, 1498 WLAN_EID_EDCA_PARAM_SET = 12, 1499 WLAN_EID_TSPEC = 13, 1500 WLAN_EID_TCLAS = 14, 1501 WLAN_EID_SCHEDULE = 15, 1502 WLAN_EID_TS_DELAY = 43, 1503 WLAN_EID_TCLAS_PROCESSING = 44, 1504 WLAN_EID_QOS_CAPA = 46, 1505 /* 802.11z */ 1506 WLAN_EID_LINK_ID = 101, 1507 /* 802.11s */ 1508 WLAN_EID_MESH_CONFIG = 113, 1509 WLAN_EID_MESH_ID = 114, 1510 WLAN_EID_LINK_METRIC_REPORT = 115, 1511 WLAN_EID_CONGESTION_NOTIFICATION = 116, 1512 WLAN_EID_PEER_MGMT = 117, 1513 WLAN_EID_CHAN_SWITCH_PARAM = 118, 1514 WLAN_EID_MESH_AWAKE_WINDOW = 119, 1515 WLAN_EID_BEACON_TIMING = 120, 1516 WLAN_EID_MCCAOP_SETUP_REQ = 121, 1517 WLAN_EID_MCCAOP_SETUP_RESP = 122, 1518 WLAN_EID_MCCAOP_ADVERT = 123, 1519 WLAN_EID_MCCAOP_TEARDOWN = 124, 1520 WLAN_EID_GANN = 125, 1521 WLAN_EID_RANN = 126, 1522 WLAN_EID_PREQ = 130, 1523 WLAN_EID_PREP = 131, 1524 WLAN_EID_PERR = 132, 1525 WLAN_EID_PXU = 137, 1526 WLAN_EID_PXUC = 138, 1527 WLAN_EID_AUTH_MESH_PEER_EXCH = 139, 1528 WLAN_EID_MIC = 140, 1529 1530 WLAN_EID_PWR_CONSTRAINT = 32, 1531 WLAN_EID_PWR_CAPABILITY = 33, 1532 WLAN_EID_TPC_REQUEST = 34, 1533 WLAN_EID_TPC_REPORT = 35, 1534 WLAN_EID_SUPPORTED_CHANNELS = 36, 1535 WLAN_EID_CHANNEL_SWITCH = 37, 1536 WLAN_EID_MEASURE_REQUEST = 38, 1537 WLAN_EID_MEASURE_REPORT = 39, 1538 WLAN_EID_QUIET = 40, 1539 WLAN_EID_IBSS_DFS = 41, 1540 1541 WLAN_EID_ERP_INFO = 42, 1542 WLAN_EID_EXT_SUPP_RATES = 50, 1543 1544 WLAN_EID_HT_CAPABILITY = 45, 1545 WLAN_EID_HT_OPERATION = 61, 1546 1547 WLAN_EID_RSN = 48, 1548 WLAN_EID_MMIE = 76, 1549 WLAN_EID_VENDOR_SPECIFIC = 221, 1550 WLAN_EID_QOS_PARAMETER = 222, 1551 1552 WLAN_EID_AP_CHAN_REPORT = 51, 1553 WLAN_EID_NEIGHBOR_REPORT = 52, 1554 WLAN_EID_RCPI = 53, 1555 WLAN_EID_BSS_AVG_ACCESS_DELAY = 63, 1556 WLAN_EID_ANTENNA_INFO = 64, 1557 WLAN_EID_RSNI = 65, 1558 WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66, 1559 WLAN_EID_BSS_AVAILABLE_CAPACITY = 67, 1560 WLAN_EID_BSS_AC_ACCESS_DELAY = 68, 1561 WLAN_EID_RRM_ENABLED_CAPABILITIES = 70, 1562 WLAN_EID_MULTIPLE_BSSID = 71, 1563 WLAN_EID_BSS_COEX_2040 = 72, 1564 WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74, 1565 WLAN_EID_EXT_CAPABILITY = 127, 1566 1567 WLAN_EID_MOBILITY_DOMAIN = 54, 1568 WLAN_EID_FAST_BSS_TRANSITION = 55, 1569 WLAN_EID_TIMEOUT_INTERVAL = 56, 1570 WLAN_EID_RIC_DATA = 57, 1571 WLAN_EID_RIC_DESCRIPTOR = 75, 1572 1573 WLAN_EID_DSE_REGISTERED_LOCATION = 58, 1574 WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59, 1575 WLAN_EID_EXT_CHANSWITCH_ANN = 60, 1576 1577 WLAN_EID_VHT_CAPABILITY = 191, 1578 WLAN_EID_VHT_OPERATION = 192, 1579 1580 /* 802.11ad */ 1581 WLAN_EID_NON_TX_BSSID_CAP = 83, 1582 WLAN_EID_WAKEUP_SCHEDULE = 143, 1583 WLAN_EID_EXT_SCHEDULE = 144, 1584 WLAN_EID_STA_AVAILABILITY = 145, 1585 WLAN_EID_DMG_TSPEC = 146, 1586 WLAN_EID_DMG_AT = 147, 1587 WLAN_EID_DMG_CAP = 148, 1588 WLAN_EID_DMG_OPERATION = 151, 1589 WLAN_EID_DMG_BSS_PARAM_CHANGE = 152, 1590 WLAN_EID_DMG_BEAM_REFINEMENT = 153, 1591 WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154, 1592 WLAN_EID_AWAKE_WINDOW = 157, 1593 WLAN_EID_MULTI_BAND = 158, 1594 WLAN_EID_ADDBA_EXT = 159, 1595 WLAN_EID_NEXT_PCP_LIST = 160, 1596 WLAN_EID_PCP_HANDOVER = 161, 1597 WLAN_EID_DMG_LINK_MARGIN = 162, 1598 WLAN_EID_SWITCHING_STREAM = 163, 1599 WLAN_EID_SESSION_TRANSITION = 164, 1600 WLAN_EID_DYN_TONE_PAIRING_REPORT = 165, 1601 WLAN_EID_CLUSTER_REPORT = 166, 1602 WLAN_EID_RELAY_CAP = 167, 1603 WLAN_EID_RELAY_XFER_PARAM_SET = 168, 1604 WLAN_EID_BEAM_LINK_MAINT = 169, 1605 WLAN_EID_MULTIPLE_MAC_ADDR = 170, 1606 WLAN_EID_U_PID = 171, 1607 WLAN_EID_DMG_LINK_ADAPT_ACK = 172, 1608 WLAN_EID_QUIET_PERIOD_REQ = 175, 1609 WLAN_EID_QUIET_PERIOD_RESP = 177, 1610 WLAN_EID_EPAC_POLICY = 182, 1611 WLAN_EID_CLISTER_TIME_OFF = 183, 1612 WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190, 1613 }; 1614 1615 /* Action category code */ 1616 enum ieee80211_category { 1617 WLAN_CATEGORY_SPECTRUM_MGMT = 0, 1618 WLAN_CATEGORY_QOS = 1, 1619 WLAN_CATEGORY_DLS = 2, 1620 WLAN_CATEGORY_BACK = 3, 1621 WLAN_CATEGORY_PUBLIC = 4, 1622 WLAN_CATEGORY_HT = 7, 1623 WLAN_CATEGORY_SA_QUERY = 8, 1624 WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9, 1625 WLAN_CATEGORY_TDLS = 12, 1626 WLAN_CATEGORY_MESH_ACTION = 13, 1627 WLAN_CATEGORY_MULTIHOP_ACTION = 14, 1628 WLAN_CATEGORY_SELF_PROTECTED = 15, 1629 WLAN_CATEGORY_DMG = 16, 1630 WLAN_CATEGORY_WMM = 17, 1631 WLAN_CATEGORY_FST = 18, 1632 WLAN_CATEGORY_UNPROT_DMG = 20, 1633 WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126, 1634 WLAN_CATEGORY_VENDOR_SPECIFIC = 127, 1635 }; 1636 1637 /* SPECTRUM_MGMT action code */ 1638 enum ieee80211_spectrum_mgmt_actioncode { 1639 WLAN_ACTION_SPCT_MSR_REQ = 0, 1640 WLAN_ACTION_SPCT_MSR_RPRT = 1, 1641 WLAN_ACTION_SPCT_TPC_REQ = 2, 1642 WLAN_ACTION_SPCT_TPC_RPRT = 3, 1643 WLAN_ACTION_SPCT_CHL_SWITCH = 4, 1644 }; 1645 1646 /* HT action codes */ 1647 enum ieee80211_ht_actioncode { 1648 WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0, 1649 WLAN_HT_ACTION_SMPS = 1, 1650 WLAN_HT_ACTION_PSMP = 2, 1651 WLAN_HT_ACTION_PCO_PHASE = 3, 1652 WLAN_HT_ACTION_CSI = 4, 1653 WLAN_HT_ACTION_NONCOMPRESSED_BF = 5, 1654 WLAN_HT_ACTION_COMPRESSED_BF = 6, 1655 WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7, 1656 }; 1657 1658 /* Self Protected Action codes */ 1659 enum ieee80211_self_protected_actioncode { 1660 WLAN_SP_RESERVED = 0, 1661 WLAN_SP_MESH_PEERING_OPEN = 1, 1662 WLAN_SP_MESH_PEERING_CONFIRM = 2, 1663 WLAN_SP_MESH_PEERING_CLOSE = 3, 1664 WLAN_SP_MGK_INFORM = 4, 1665 WLAN_SP_MGK_ACK = 5, 1666 }; 1667 1668 /* Mesh action codes */ 1669 enum ieee80211_mesh_actioncode { 1670 WLAN_MESH_ACTION_LINK_METRIC_REPORT, 1671 WLAN_MESH_ACTION_HWMP_PATH_SELECTION, 1672 WLAN_MESH_ACTION_GATE_ANNOUNCEMENT, 1673 WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION, 1674 WLAN_MESH_ACTION_MCCA_SETUP_REQUEST, 1675 WLAN_MESH_ACTION_MCCA_SETUP_REPLY, 1676 WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST, 1677 WLAN_MESH_ACTION_MCCA_ADVERTISEMENT, 1678 WLAN_MESH_ACTION_MCCA_TEARDOWN, 1679 WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST, 1680 WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE, 1681 }; 1682 1683 /* Security key length */ 1684 enum ieee80211_key_len { 1685 WLAN_KEY_LEN_WEP40 = 5, 1686 WLAN_KEY_LEN_WEP104 = 13, 1687 WLAN_KEY_LEN_CCMP = 16, 1688 WLAN_KEY_LEN_TKIP = 32, 1689 WLAN_KEY_LEN_AES_CMAC = 16, 1690 }; 1691 1692 /* Public action codes */ 1693 enum ieee80211_pub_actioncode { 1694 WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14, 1695 }; 1696 1697 /* TDLS action codes */ 1698 enum ieee80211_tdls_actioncode { 1699 WLAN_TDLS_SETUP_REQUEST = 0, 1700 WLAN_TDLS_SETUP_RESPONSE = 1, 1701 WLAN_TDLS_SETUP_CONFIRM = 2, 1702 WLAN_TDLS_TEARDOWN = 3, 1703 WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4, 1704 WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5, 1705 WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6, 1706 WLAN_TDLS_PEER_PSM_REQUEST = 7, 1707 WLAN_TDLS_PEER_PSM_RESPONSE = 8, 1708 WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9, 1709 WLAN_TDLS_DISCOVERY_REQUEST = 10, 1710 }; 1711 1712 /* 1713 * TDLS capabililites to be enabled in the 5th byte of the 1714 * @WLAN_EID_EXT_CAPABILITY information element 1715 */ 1716 #define WLAN_EXT_CAPA5_TDLS_ENABLED BIT(5) 1717 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED BIT(6) 1718 1719 /* TDLS specific payload type in the LLC/SNAP header */ 1720 #define WLAN_TDLS_SNAP_RFTYPE 0x2 1721 1722 /** 1723 * enum - mesh synchronization method identifier 1724 * 1725 * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method 1726 * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method 1727 * that will be specified in a vendor specific information element 1728 */ 1729 enum { 1730 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1, 1731 IEEE80211_SYNC_METHOD_VENDOR = 255, 1732 }; 1733 1734 /** 1735 * enum - mesh path selection protocol identifier 1736 * 1737 * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol 1738 * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will 1739 * be specified in a vendor specific information element 1740 */ 1741 enum { 1742 IEEE80211_PATH_PROTOCOL_HWMP = 1, 1743 IEEE80211_PATH_PROTOCOL_VENDOR = 255, 1744 }; 1745 1746 /** 1747 * enum - mesh path selection metric identifier 1748 * 1749 * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric 1750 * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be 1751 * specified in a vendor specific information element 1752 */ 1753 enum { 1754 IEEE80211_PATH_METRIC_AIRTIME = 1, 1755 IEEE80211_PATH_METRIC_VENDOR = 255, 1756 }; 1757 1758 /** 1759 * enum ieee80211_root_mode_identifier - root mesh STA mode identifier 1760 * 1761 * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode 1762 * 1763 * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default) 1764 * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than 1765 * this value 1766 * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports 1767 * the proactive PREQ with proactive PREP subfield set to 0 1768 * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA 1769 * supports the proactive PREQ with proactive PREP subfield set to 1 1770 * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports 1771 * the proactive RANN 1772 */ 1773 enum ieee80211_root_mode_identifier { 1774 IEEE80211_ROOTMODE_NO_ROOT = 0, 1775 IEEE80211_ROOTMODE_ROOT = 1, 1776 IEEE80211_PROACTIVE_PREQ_NO_PREP = 2, 1777 IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3, 1778 IEEE80211_PROACTIVE_RANN = 4, 1779 }; 1780 1781 /* 1782 * IEEE 802.11-2007 7.3.2.9 Country information element 1783 * 1784 * Minimum length is 8 octets, ie len must be evenly 1785 * divisible by 2 1786 */ 1787 1788 /* Although the spec says 8 I'm seeing 6 in practice */ 1789 #define IEEE80211_COUNTRY_IE_MIN_LEN 6 1790 1791 /* The Country String field of the element shall be 3 octets in length */ 1792 #define IEEE80211_COUNTRY_STRING_LEN 3 1793 1794 /* 1795 * For regulatory extension stuff see IEEE 802.11-2007 1796 * Annex I (page 1141) and Annex J (page 1147). Also 1797 * review 7.3.2.9. 1798 * 1799 * When dot11RegulatoryClassesRequired is true and the 1800 * first_channel/reg_extension_id is >= 201 then the IE 1801 * compromises of the 'ext' struct represented below: 1802 * 1803 * - Regulatory extension ID - when generating IE this just needs 1804 * to be monotonically increasing for each triplet passed in 1805 * the IE 1806 * - Regulatory class - index into set of rules 1807 * - Coverage class - index into air propagation time (Table 7-27), 1808 * in microseconds, you can compute the air propagation time from 1809 * the index by multiplying by 3, so index 10 yields a propagation 1810 * of 10 us. Valid values are 0-31, values 32-255 are not defined 1811 * yet. A value of 0 inicates air propagation of <= 1 us. 1812 * 1813 * See also Table I.2 for Emission limit sets and table 1814 * I.3 for Behavior limit sets. Table J.1 indicates how to map 1815 * a reg_class to an emission limit set and behavior limit set. 1816 */ 1817 #define IEEE80211_COUNTRY_EXTENSION_ID 201 1818 1819 /* 1820 * Channels numbers in the IE must be monotonically increasing 1821 * if dot11RegulatoryClassesRequired is not true. 1822 * 1823 * If dot11RegulatoryClassesRequired is true consecutive 1824 * subband triplets following a regulatory triplet shall 1825 * have monotonically increasing first_channel number fields. 1826 * 1827 * Channel numbers shall not overlap. 1828 * 1829 * Note that max_power is signed. 1830 */ 1831 struct ieee80211_country_ie_triplet { 1832 union { 1833 struct { 1834 u8 first_channel; 1835 u8 num_channels; 1836 s8 max_power; 1837 } __attribute__ ((packed)) chans; 1838 struct { 1839 u8 reg_extension_id; 1840 u8 reg_class; 1841 u8 coverage_class; 1842 } __attribute__ ((packed)) ext; 1843 }; 1844 } __attribute__ ((packed)); 1845 1846 enum ieee80211_timeout_interval_type { 1847 WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */, 1848 WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */, 1849 WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */, 1850 }; 1851 1852 /* BACK action code */ 1853 enum ieee80211_back_actioncode { 1854 WLAN_ACTION_ADDBA_REQ = 0, 1855 WLAN_ACTION_ADDBA_RESP = 1, 1856 WLAN_ACTION_DELBA = 2, 1857 }; 1858 1859 /* BACK (block-ack) parties */ 1860 enum ieee80211_back_parties { 1861 WLAN_BACK_RECIPIENT = 0, 1862 WLAN_BACK_INITIATOR = 1, 1863 }; 1864 1865 /* SA Query action */ 1866 enum ieee80211_sa_query_action { 1867 WLAN_ACTION_SA_QUERY_REQUEST = 0, 1868 WLAN_ACTION_SA_QUERY_RESPONSE = 1, 1869 }; 1870 1871 1872 /* cipher suite selectors */ 1873 #define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00 1874 #define WLAN_CIPHER_SUITE_WEP40 0x000FAC01 1875 #define WLAN_CIPHER_SUITE_TKIP 0x000FAC02 1876 /* reserved: 0x000FAC03 */ 1877 #define WLAN_CIPHER_SUITE_CCMP 0x000FAC04 1878 #define WLAN_CIPHER_SUITE_WEP104 0x000FAC05 1879 #define WLAN_CIPHER_SUITE_AES_CMAC 0x000FAC06 1880 #define WLAN_CIPHER_SUITE_GCMP 0x000FAC08 1881 1882 #define WLAN_CIPHER_SUITE_SMS4 0x00147201 1883 1884 /* AKM suite selectors */ 1885 #define WLAN_AKM_SUITE_8021X 0x000FAC01 1886 #define WLAN_AKM_SUITE_PSK 0x000FAC02 1887 #define WLAN_AKM_SUITE_SAE 0x000FAC08 1888 #define WLAN_AKM_SUITE_FT_OVER_SAE 0x000FAC09 1889 1890 #define WLAN_MAX_KEY_LEN 32 1891 1892 #define WLAN_PMKID_LEN 16 1893 1894 #define WLAN_OUI_WFA 0x506f9a 1895 #define WLAN_OUI_TYPE_WFA_P2P 9 1896 #define WLAN_OUI_MICROSOFT 0x0050f2 1897 #define WLAN_OUI_TYPE_MICROSOFT_WPA 1 1898 #define WLAN_OUI_TYPE_MICROSOFT_WMM 2 1899 #define WLAN_OUI_TYPE_MICROSOFT_WPS 4 1900 1901 /* 1902 * WMM/802.11e Tspec Element 1903 */ 1904 #define IEEE80211_WMM_IE_TSPEC_TID_MASK 0x0F 1905 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT 1 1906 1907 enum ieee80211_tspec_status_code { 1908 IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0, 1909 IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1, 1910 }; 1911 1912 struct ieee80211_tspec_ie { 1913 u8 element_id; 1914 u8 len; 1915 u8 oui[3]; 1916 u8 oui_type; 1917 u8 oui_subtype; 1918 u8 version; 1919 __le16 tsinfo; 1920 u8 tsinfo_resvd; 1921 __le16 nominal_msdu; 1922 __le16 max_msdu; 1923 __le32 min_service_int; 1924 __le32 max_service_int; 1925 __le32 inactivity_int; 1926 __le32 suspension_int; 1927 __le32 service_start_time; 1928 __le32 min_data_rate; 1929 __le32 mean_data_rate; 1930 __le32 peak_data_rate; 1931 __le32 max_burst_size; 1932 __le32 delay_bound; 1933 __le32 min_phy_rate; 1934 __le16 sba; 1935 __le16 medium_time; 1936 } __packed; 1937 1938 /** 1939 * ieee80211_get_qos_ctl - get pointer to qos control bytes 1940 * @hdr: the frame 1941 * 1942 * The qos ctrl bytes come after the frame_control, duration, seq_num 1943 * and 3 or 4 addresses of length ETH_ALEN. 1944 * 3 addr: 2 + 2 + 2 + 3*6 = 24 1945 * 4 addr: 2 + 2 + 2 + 4*6 = 30 1946 */ 1947 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr) 1948 { 1949 if (ieee80211_has_a4(hdr->frame_control)) 1950 return (u8 *)hdr + 30; 1951 else 1952 return (u8 *)hdr + 24; 1953 } 1954 1955 /** 1956 * ieee80211_get_SA - get pointer to SA 1957 * @hdr: the frame 1958 * 1959 * Given an 802.11 frame, this function returns the offset 1960 * to the source address (SA). It does not verify that the 1961 * header is long enough to contain the address, and the 1962 * header must be long enough to contain the frame control 1963 * field. 1964 */ 1965 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr) 1966 { 1967 if (ieee80211_has_a4(hdr->frame_control)) 1968 return hdr->addr4; 1969 if (ieee80211_has_fromds(hdr->frame_control)) 1970 return hdr->addr3; 1971 return hdr->addr2; 1972 } 1973 1974 /** 1975 * ieee80211_get_DA - get pointer to DA 1976 * @hdr: the frame 1977 * 1978 * Given an 802.11 frame, this function returns the offset 1979 * to the destination address (DA). It does not verify that 1980 * the header is long enough to contain the address, and the 1981 * header must be long enough to contain the frame control 1982 * field. 1983 */ 1984 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr) 1985 { 1986 if (ieee80211_has_tods(hdr->frame_control)) 1987 return hdr->addr3; 1988 else 1989 return hdr->addr1; 1990 } 1991 1992 /** 1993 * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame 1994 * @hdr: the frame (buffer must include at least the first octet of payload) 1995 */ 1996 static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr) 1997 { 1998 if (ieee80211_is_disassoc(hdr->frame_control) || 1999 ieee80211_is_deauth(hdr->frame_control)) 2000 return true; 2001 2002 if (ieee80211_is_action(hdr->frame_control)) { 2003 u8 *category; 2004 2005 /* 2006 * Action frames, excluding Public Action frames, are Robust 2007 * Management Frames. However, if we are looking at a Protected 2008 * frame, skip the check since the data may be encrypted and 2009 * the frame has already been found to be a Robust Management 2010 * Frame (by the other end). 2011 */ 2012 if (ieee80211_has_protected(hdr->frame_control)) 2013 return true; 2014 category = ((u8 *) hdr) + 24; 2015 return *category != WLAN_CATEGORY_PUBLIC && 2016 *category != WLAN_CATEGORY_HT && 2017 *category != WLAN_CATEGORY_SELF_PROTECTED && 2018 *category != WLAN_CATEGORY_VENDOR_SPECIFIC; 2019 } 2020 2021 return false; 2022 } 2023 2024 /** 2025 * ieee80211_is_public_action - check if frame is a public action frame 2026 * @hdr: the frame 2027 * @len: length of the frame 2028 */ 2029 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr, 2030 size_t len) 2031 { 2032 struct ieee80211_mgmt *mgmt = (void *)hdr; 2033 2034 if (len < IEEE80211_MIN_ACTION_SIZE) 2035 return false; 2036 if (!ieee80211_is_action(hdr->frame_control)) 2037 return false; 2038 return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC; 2039 } 2040 2041 /** 2042 * ieee80211_dsss_chan_to_freq - get channel center frequency 2043 * @channel: the DSSS channel 2044 * 2045 * Convert IEEE802.11 DSSS channel to the center frequency (MHz). 2046 * Ref IEEE 802.11-2007 section 15.6 2047 */ 2048 static inline int ieee80211_dsss_chan_to_freq(int channel) 2049 { 2050 if ((channel > 0) && (channel < 14)) 2051 return 2407 + (channel * 5); 2052 else if (channel == 14) 2053 return 2484; 2054 else 2055 return -1; 2056 } 2057 2058 /** 2059 * ieee80211_freq_to_dsss_chan - get channel 2060 * @freq: the frequency 2061 * 2062 * Convert frequency (MHz) to IEEE802.11 DSSS channel 2063 * Ref IEEE 802.11-2007 section 15.6 2064 * 2065 * This routine selects the channel with the closest center frequency. 2066 */ 2067 static inline int ieee80211_freq_to_dsss_chan(int freq) 2068 { 2069 if ((freq >= 2410) && (freq < 2475)) 2070 return (freq - 2405) / 5; 2071 else if ((freq >= 2482) && (freq < 2487)) 2072 return 14; 2073 else 2074 return -1; 2075 } 2076 2077 /** 2078 * ieee80211_tu_to_usec - convert time units (TU) to microseconds 2079 * @tu: the TUs 2080 */ 2081 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu) 2082 { 2083 return 1024 * tu; 2084 } 2085 2086 /** 2087 * ieee80211_check_tim - check if AID bit is set in TIM 2088 * @tim: the TIM IE 2089 * @tim_len: length of the TIM IE 2090 * @aid: the AID to look for 2091 */ 2092 static inline bool ieee80211_check_tim(struct ieee80211_tim_ie *tim, 2093 u8 tim_len, u16 aid) 2094 { 2095 u8 mask; 2096 u8 index, indexn1, indexn2; 2097 2098 if (unlikely(!tim || tim_len < sizeof(*tim))) 2099 return false; 2100 2101 aid &= 0x3fff; 2102 index = aid / 8; 2103 mask = 1 << (aid & 7); 2104 2105 indexn1 = tim->bitmap_ctrl & 0xfe; 2106 indexn2 = tim_len + indexn1 - 4; 2107 2108 if (index < indexn1 || index > indexn2) 2109 return false; 2110 2111 index -= indexn1; 2112 2113 return !!(tim->virtual_map[index] & mask); 2114 } 2115 2116 #endif /* LINUX_IEEE80211_H */ 2117