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 #define IEEE80211_QOS_CTL_TID_MASK 0x000F 121 #define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007 122 123 struct ieee80211_hdr { 124 __le16 frame_control; 125 __le16 duration_id; 126 u8 addr1[6]; 127 u8 addr2[6]; 128 u8 addr3[6]; 129 __le16 seq_ctrl; 130 u8 addr4[6]; 131 } __attribute__ ((packed)); 132 133 /** 134 * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set 135 * @fc: frame control bytes in little-endian byteorder 136 */ 137 static inline int ieee80211_has_tods(__le16 fc) 138 { 139 return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0; 140 } 141 142 /** 143 * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set 144 * @fc: frame control bytes in little-endian byteorder 145 */ 146 static inline int ieee80211_has_fromds(__le16 fc) 147 { 148 return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0; 149 } 150 151 /** 152 * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set 153 * @fc: frame control bytes in little-endian byteorder 154 */ 155 static inline int ieee80211_has_a4(__le16 fc) 156 { 157 __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS); 158 return (fc & tmp) == tmp; 159 } 160 161 /** 162 * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set 163 * @fc: frame control bytes in little-endian byteorder 164 */ 165 static inline int ieee80211_has_morefrags(__le16 fc) 166 { 167 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0; 168 } 169 170 /** 171 * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set 172 * @fc: frame control bytes in little-endian byteorder 173 */ 174 static inline int ieee80211_has_retry(__le16 fc) 175 { 176 return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0; 177 } 178 179 /** 180 * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set 181 * @fc: frame control bytes in little-endian byteorder 182 */ 183 static inline int ieee80211_has_pm(__le16 fc) 184 { 185 return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0; 186 } 187 188 /** 189 * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set 190 * @fc: frame control bytes in little-endian byteorder 191 */ 192 static inline int ieee80211_has_moredata(__le16 fc) 193 { 194 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0; 195 } 196 197 /** 198 * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set 199 * @fc: frame control bytes in little-endian byteorder 200 */ 201 static inline int ieee80211_has_protected(__le16 fc) 202 { 203 return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0; 204 } 205 206 /** 207 * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set 208 * @fc: frame control bytes in little-endian byteorder 209 */ 210 static inline int ieee80211_has_order(__le16 fc) 211 { 212 return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0; 213 } 214 215 /** 216 * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT 217 * @fc: frame control bytes in little-endian byteorder 218 */ 219 static inline int ieee80211_is_mgmt(__le16 fc) 220 { 221 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) == 222 cpu_to_le16(IEEE80211_FTYPE_MGMT); 223 } 224 225 /** 226 * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL 227 * @fc: frame control bytes in little-endian byteorder 228 */ 229 static inline int ieee80211_is_ctl(__le16 fc) 230 { 231 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) == 232 cpu_to_le16(IEEE80211_FTYPE_CTL); 233 } 234 235 /** 236 * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA 237 * @fc: frame control bytes in little-endian byteorder 238 */ 239 static inline int ieee80211_is_data(__le16 fc) 240 { 241 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) == 242 cpu_to_le16(IEEE80211_FTYPE_DATA); 243 } 244 245 /** 246 * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set 247 * @fc: frame control bytes in little-endian byteorder 248 */ 249 static inline int ieee80211_is_data_qos(__le16 fc) 250 { 251 /* 252 * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need 253 * to check the one bit 254 */ 255 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) == 256 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA); 257 } 258 259 /** 260 * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data 261 * @fc: frame control bytes in little-endian byteorder 262 */ 263 static inline int ieee80211_is_data_present(__le16 fc) 264 { 265 /* 266 * mask with 0x40 and test that that bit is clear to only return true 267 * for the data-containing substypes. 268 */ 269 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) == 270 cpu_to_le16(IEEE80211_FTYPE_DATA); 271 } 272 273 /** 274 * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ 275 * @fc: frame control bytes in little-endian byteorder 276 */ 277 static inline int ieee80211_is_assoc_req(__le16 fc) 278 { 279 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 280 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ); 281 } 282 283 /** 284 * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP 285 * @fc: frame control bytes in little-endian byteorder 286 */ 287 static inline int ieee80211_is_assoc_resp(__le16 fc) 288 { 289 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 290 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP); 291 } 292 293 /** 294 * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ 295 * @fc: frame control bytes in little-endian byteorder 296 */ 297 static inline int ieee80211_is_reassoc_req(__le16 fc) 298 { 299 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 300 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ); 301 } 302 303 /** 304 * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP 305 * @fc: frame control bytes in little-endian byteorder 306 */ 307 static inline int ieee80211_is_reassoc_resp(__le16 fc) 308 { 309 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 310 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP); 311 } 312 313 /** 314 * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ 315 * @fc: frame control bytes in little-endian byteorder 316 */ 317 static inline int ieee80211_is_probe_req(__le16 fc) 318 { 319 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 320 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ); 321 } 322 323 /** 324 * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP 325 * @fc: frame control bytes in little-endian byteorder 326 */ 327 static inline int ieee80211_is_probe_resp(__le16 fc) 328 { 329 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 330 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP); 331 } 332 333 /** 334 * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON 335 * @fc: frame control bytes in little-endian byteorder 336 */ 337 static inline int ieee80211_is_beacon(__le16 fc) 338 { 339 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 340 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON); 341 } 342 343 /** 344 * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM 345 * @fc: frame control bytes in little-endian byteorder 346 */ 347 static inline int ieee80211_is_atim(__le16 fc) 348 { 349 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 350 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM); 351 } 352 353 /** 354 * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC 355 * @fc: frame control bytes in little-endian byteorder 356 */ 357 static inline int ieee80211_is_disassoc(__le16 fc) 358 { 359 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 360 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC); 361 } 362 363 /** 364 * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH 365 * @fc: frame control bytes in little-endian byteorder 366 */ 367 static inline int ieee80211_is_auth(__le16 fc) 368 { 369 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 370 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH); 371 } 372 373 /** 374 * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH 375 * @fc: frame control bytes in little-endian byteorder 376 */ 377 static inline int ieee80211_is_deauth(__le16 fc) 378 { 379 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 380 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH); 381 } 382 383 /** 384 * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION 385 * @fc: frame control bytes in little-endian byteorder 386 */ 387 static inline int ieee80211_is_action(__le16 fc) 388 { 389 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 390 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION); 391 } 392 393 /** 394 * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ 395 * @fc: frame control bytes in little-endian byteorder 396 */ 397 static inline int ieee80211_is_back_req(__le16 fc) 398 { 399 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 400 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ); 401 } 402 403 /** 404 * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK 405 * @fc: frame control bytes in little-endian byteorder 406 */ 407 static inline int ieee80211_is_back(__le16 fc) 408 { 409 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 410 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK); 411 } 412 413 /** 414 * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL 415 * @fc: frame control bytes in little-endian byteorder 416 */ 417 static inline int ieee80211_is_pspoll(__le16 fc) 418 { 419 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 420 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL); 421 } 422 423 /** 424 * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS 425 * @fc: frame control bytes in little-endian byteorder 426 */ 427 static inline int ieee80211_is_rts(__le16 fc) 428 { 429 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 430 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS); 431 } 432 433 /** 434 * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS 435 * @fc: frame control bytes in little-endian byteorder 436 */ 437 static inline int ieee80211_is_cts(__le16 fc) 438 { 439 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 440 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS); 441 } 442 443 /** 444 * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK 445 * @fc: frame control bytes in little-endian byteorder 446 */ 447 static inline int ieee80211_is_ack(__le16 fc) 448 { 449 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 450 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK); 451 } 452 453 /** 454 * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND 455 * @fc: frame control bytes in little-endian byteorder 456 */ 457 static inline int ieee80211_is_cfend(__le16 fc) 458 { 459 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 460 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND); 461 } 462 463 /** 464 * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK 465 * @fc: frame control bytes in little-endian byteorder 466 */ 467 static inline int ieee80211_is_cfendack(__le16 fc) 468 { 469 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 470 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK); 471 } 472 473 /** 474 * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame 475 * @fc: frame control bytes in little-endian byteorder 476 */ 477 static inline int ieee80211_is_nullfunc(__le16 fc) 478 { 479 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 480 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC); 481 } 482 483 /** 484 * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame 485 * @fc: frame control bytes in little-endian byteorder 486 */ 487 static inline int ieee80211_is_qos_nullfunc(__le16 fc) 488 { 489 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 490 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC); 491 } 492 493 struct ieee80211s_hdr { 494 u8 flags; 495 u8 ttl; 496 __le32 seqnum; 497 u8 eaddr1[6]; 498 u8 eaddr2[6]; 499 u8 eaddr3[6]; 500 } __attribute__ ((packed)); 501 502 /* Mesh flags */ 503 #define MESH_FLAGS_AE_A4 0x1 504 #define MESH_FLAGS_AE_A5_A6 0x2 505 #define MESH_FLAGS_AE 0x3 506 #define MESH_FLAGS_PS_DEEP 0x4 507 508 /** 509 * struct ieee80211_quiet_ie 510 * 511 * This structure refers to "Quiet information element" 512 */ 513 struct ieee80211_quiet_ie { 514 u8 count; 515 u8 period; 516 __le16 duration; 517 __le16 offset; 518 } __attribute__ ((packed)); 519 520 /** 521 * struct ieee80211_msrment_ie 522 * 523 * This structure refers to "Measurement Request/Report information element" 524 */ 525 struct ieee80211_msrment_ie { 526 u8 token; 527 u8 mode; 528 u8 type; 529 u8 request[0]; 530 } __attribute__ ((packed)); 531 532 /** 533 * struct ieee80211_channel_sw_ie 534 * 535 * This structure refers to "Channel Switch Announcement information element" 536 */ 537 struct ieee80211_channel_sw_ie { 538 u8 mode; 539 u8 new_ch_num; 540 u8 count; 541 } __attribute__ ((packed)); 542 543 /** 544 * struct ieee80211_tim 545 * 546 * This structure refers to "Traffic Indication Map information element" 547 */ 548 struct ieee80211_tim_ie { 549 u8 dtim_count; 550 u8 dtim_period; 551 u8 bitmap_ctrl; 552 /* variable size: 1 - 251 bytes */ 553 u8 virtual_map[1]; 554 } __attribute__ ((packed)); 555 556 /** 557 * struct ieee80211_meshconf_ie 558 * 559 * This structure refers to "Mesh Configuration information element" 560 */ 561 struct ieee80211_meshconf_ie { 562 u8 meshconf_psel; 563 u8 meshconf_pmetric; 564 u8 meshconf_congest; 565 u8 meshconf_synch; 566 u8 meshconf_auth; 567 u8 meshconf_form; 568 u8 meshconf_cap; 569 } __attribute__ ((packed)); 570 571 /** 572 * struct ieee80211_rann_ie 573 * 574 * This structure refers to "Root Announcement information element" 575 */ 576 struct ieee80211_rann_ie { 577 u8 rann_flags; 578 u8 rann_hopcount; 579 u8 rann_ttl; 580 u8 rann_addr[6]; 581 u32 rann_seq; 582 u32 rann_metric; 583 } __attribute__ ((packed)); 584 585 #define WLAN_SA_QUERY_TR_ID_LEN 2 586 587 struct ieee80211_mgmt { 588 __le16 frame_control; 589 __le16 duration; 590 u8 da[6]; 591 u8 sa[6]; 592 u8 bssid[6]; 593 __le16 seq_ctrl; 594 union { 595 struct { 596 __le16 auth_alg; 597 __le16 auth_transaction; 598 __le16 status_code; 599 /* possibly followed by Challenge text */ 600 u8 variable[0]; 601 } __attribute__ ((packed)) auth; 602 struct { 603 __le16 reason_code; 604 } __attribute__ ((packed)) deauth; 605 struct { 606 __le16 capab_info; 607 __le16 listen_interval; 608 /* followed by SSID and Supported rates */ 609 u8 variable[0]; 610 } __attribute__ ((packed)) assoc_req; 611 struct { 612 __le16 capab_info; 613 __le16 status_code; 614 __le16 aid; 615 /* followed by Supported rates */ 616 u8 variable[0]; 617 } __attribute__ ((packed)) assoc_resp, reassoc_resp; 618 struct { 619 __le16 capab_info; 620 __le16 listen_interval; 621 u8 current_ap[6]; 622 /* followed by SSID and Supported rates */ 623 u8 variable[0]; 624 } __attribute__ ((packed)) reassoc_req; 625 struct { 626 __le16 reason_code; 627 } __attribute__ ((packed)) disassoc; 628 struct { 629 __le64 timestamp; 630 __le16 beacon_int; 631 __le16 capab_info; 632 /* followed by some of SSID, Supported rates, 633 * FH Params, DS Params, CF Params, IBSS Params, TIM */ 634 u8 variable[0]; 635 } __attribute__ ((packed)) beacon; 636 struct { 637 /* only variable items: SSID, Supported rates */ 638 u8 variable[0]; 639 } __attribute__ ((packed)) probe_req; 640 struct { 641 __le64 timestamp; 642 __le16 beacon_int; 643 __le16 capab_info; 644 /* followed by some of SSID, Supported rates, 645 * FH Params, DS Params, CF Params, IBSS Params */ 646 u8 variable[0]; 647 } __attribute__ ((packed)) probe_resp; 648 struct { 649 u8 category; 650 union { 651 struct { 652 u8 action_code; 653 u8 dialog_token; 654 u8 status_code; 655 u8 variable[0]; 656 } __attribute__ ((packed)) wme_action; 657 struct{ 658 u8 action_code; 659 u8 element_id; 660 u8 length; 661 struct ieee80211_channel_sw_ie sw_elem; 662 } __attribute__((packed)) chan_switch; 663 struct{ 664 u8 action_code; 665 u8 dialog_token; 666 u8 element_id; 667 u8 length; 668 struct ieee80211_msrment_ie msr_elem; 669 } __attribute__((packed)) measurement; 670 struct{ 671 u8 action_code; 672 u8 dialog_token; 673 __le16 capab; 674 __le16 timeout; 675 __le16 start_seq_num; 676 } __attribute__((packed)) addba_req; 677 struct{ 678 u8 action_code; 679 u8 dialog_token; 680 __le16 status; 681 __le16 capab; 682 __le16 timeout; 683 } __attribute__((packed)) addba_resp; 684 struct{ 685 u8 action_code; 686 __le16 params; 687 __le16 reason_code; 688 } __attribute__((packed)) delba; 689 struct{ 690 u8 action_code; 691 /* capab_info for open and confirm, 692 * reason for close 693 */ 694 __le16 aux; 695 /* Followed in plink_confirm by status 696 * code, AID and supported rates, 697 * and directly by supported rates in 698 * plink_open and plink_close 699 */ 700 u8 variable[0]; 701 } __attribute__((packed)) plink_action; 702 struct{ 703 u8 action_code; 704 u8 variable[0]; 705 } __attribute__((packed)) mesh_action; 706 struct { 707 u8 action; 708 u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN]; 709 } __attribute__ ((packed)) sa_query; 710 } u; 711 } __attribute__ ((packed)) action; 712 } u; 713 } __attribute__ ((packed)); 714 715 /* mgmt header + 1 byte category code */ 716 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u) 717 718 719 /* Management MIC information element (IEEE 802.11w) */ 720 struct ieee80211_mmie { 721 u8 element_id; 722 u8 length; 723 __le16 key_id; 724 u8 sequence_number[6]; 725 u8 mic[8]; 726 } __attribute__ ((packed)); 727 728 /* Control frames */ 729 struct ieee80211_rts { 730 __le16 frame_control; 731 __le16 duration; 732 u8 ra[6]; 733 u8 ta[6]; 734 } __attribute__ ((packed)); 735 736 struct ieee80211_cts { 737 __le16 frame_control; 738 __le16 duration; 739 u8 ra[6]; 740 } __attribute__ ((packed)); 741 742 struct ieee80211_pspoll { 743 __le16 frame_control; 744 __le16 aid; 745 u8 bssid[6]; 746 u8 ta[6]; 747 } __attribute__ ((packed)); 748 749 /** 750 * struct ieee80211_bar - HT Block Ack Request 751 * 752 * This structure refers to "HT BlockAckReq" as 753 * described in 802.11n draft section 7.2.1.7.1 754 */ 755 struct ieee80211_bar { 756 __le16 frame_control; 757 __le16 duration; 758 __u8 ra[6]; 759 __u8 ta[6]; 760 __le16 control; 761 __le16 start_seq_num; 762 } __attribute__((packed)); 763 764 /* 802.11 BAR control masks */ 765 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000 766 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004 767 768 769 #define IEEE80211_HT_MCS_MASK_LEN 10 770 771 /** 772 * struct ieee80211_mcs_info - MCS information 773 * @rx_mask: RX mask 774 * @rx_highest: highest supported RX rate 775 * @tx_params: TX parameters 776 */ 777 struct ieee80211_mcs_info { 778 u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN]; 779 __le16 rx_highest; 780 u8 tx_params; 781 u8 reserved[3]; 782 } __attribute__((packed)); 783 784 /* 802.11n HT capability MSC set */ 785 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff 786 #define IEEE80211_HT_MCS_TX_DEFINED 0x01 787 #define IEEE80211_HT_MCS_TX_RX_DIFF 0x02 788 /* value 0 == 1 stream etc */ 789 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0C 790 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2 791 #define IEEE80211_HT_MCS_TX_MAX_STREAMS 4 792 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION 0x10 793 794 /* 795 * 802.11n D5.0 20.3.5 / 20.6 says: 796 * - indices 0 to 7 and 32 are single spatial stream 797 * - 8 to 31 are multiple spatial streams using equal modulation 798 * [8..15 for two streams, 16..23 for three and 24..31 for four] 799 * - remainder are multiple spatial streams using unequal modulation 800 */ 801 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33 802 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \ 803 (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8) 804 805 /** 806 * struct ieee80211_ht_cap - HT capabilities 807 * 808 * This structure is the "HT capabilities element" as 809 * described in 802.11n D5.0 7.3.2.57 810 */ 811 struct ieee80211_ht_cap { 812 __le16 cap_info; 813 u8 ampdu_params_info; 814 815 /* 16 bytes MCS information */ 816 struct ieee80211_mcs_info mcs; 817 818 __le16 extended_ht_cap_info; 819 __le32 tx_BF_cap_info; 820 u8 antenna_selection_info; 821 } __attribute__ ((packed)); 822 823 /* 802.11n HT capabilities masks (for cap_info) */ 824 #define IEEE80211_HT_CAP_LDPC_CODING 0x0001 825 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40 0x0002 826 #define IEEE80211_HT_CAP_SM_PS 0x000C 827 #define IEEE80211_HT_CAP_GRN_FLD 0x0010 828 #define IEEE80211_HT_CAP_SGI_20 0x0020 829 #define IEEE80211_HT_CAP_SGI_40 0x0040 830 #define IEEE80211_HT_CAP_TX_STBC 0x0080 831 #define IEEE80211_HT_CAP_RX_STBC 0x0300 832 #define IEEE80211_HT_CAP_DELAY_BA 0x0400 833 #define IEEE80211_HT_CAP_MAX_AMSDU 0x0800 834 #define IEEE80211_HT_CAP_DSSSCCK40 0x1000 835 #define IEEE80211_HT_CAP_RESERVED 0x2000 836 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT 0x4000 837 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT 0x8000 838 839 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */ 840 #define IEEE80211_HT_AMPDU_PARM_FACTOR 0x03 841 #define IEEE80211_HT_AMPDU_PARM_DENSITY 0x1C 842 843 /* 844 * Maximum length of AMPDU that the STA can receive. 845 * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets) 846 */ 847 enum ieee80211_max_ampdu_length_exp { 848 IEEE80211_HT_MAX_AMPDU_8K = 0, 849 IEEE80211_HT_MAX_AMPDU_16K = 1, 850 IEEE80211_HT_MAX_AMPDU_32K = 2, 851 IEEE80211_HT_MAX_AMPDU_64K = 3 852 }; 853 854 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13 855 856 /* Minimum MPDU start spacing */ 857 enum ieee80211_min_mpdu_spacing { 858 IEEE80211_HT_MPDU_DENSITY_NONE = 0, /* No restriction */ 859 IEEE80211_HT_MPDU_DENSITY_0_25 = 1, /* 1/4 usec */ 860 IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 usec */ 861 IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 usec */ 862 IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 usec */ 863 IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4 usec */ 864 IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8 usec */ 865 IEEE80211_HT_MPDU_DENSITY_16 = 7 /* 16 usec */ 866 }; 867 868 /** 869 * struct ieee80211_ht_info - HT information 870 * 871 * This structure is the "HT information element" as 872 * described in 802.11n D5.0 7.3.2.58 873 */ 874 struct ieee80211_ht_info { 875 u8 control_chan; 876 u8 ht_param; 877 __le16 operation_mode; 878 __le16 stbc_param; 879 u8 basic_set[16]; 880 } __attribute__ ((packed)); 881 882 /* for ht_param */ 883 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET 0x03 884 #define IEEE80211_HT_PARAM_CHA_SEC_NONE 0x00 885 #define IEEE80211_HT_PARAM_CHA_SEC_ABOVE 0x01 886 #define IEEE80211_HT_PARAM_CHA_SEC_BELOW 0x03 887 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY 0x04 888 #define IEEE80211_HT_PARAM_RIFS_MODE 0x08 889 #define IEEE80211_HT_PARAM_SPSMP_SUPPORT 0x10 890 #define IEEE80211_HT_PARAM_SERV_INTERVAL_GRAN 0xE0 891 892 /* for operation_mode */ 893 #define IEEE80211_HT_OP_MODE_PROTECTION 0x0003 894 #define IEEE80211_HT_OP_MODE_PROTECTION_NONE 0 895 #define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER 1 896 #define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ 2 897 #define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED 3 898 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT 0x0004 899 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT 0x0010 900 901 /* for stbc_param */ 902 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON 0x0040 903 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080 904 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON 0x0100 905 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT 0x0200 906 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE 0x0400 907 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE 0x0800 908 909 910 /* block-ack parameters */ 911 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002 912 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C 913 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0 914 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000 915 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800 916 917 /* 918 * A-PMDU buffer sizes 919 * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2) 920 */ 921 #define IEEE80211_MIN_AMPDU_BUF 0x8 922 #define IEEE80211_MAX_AMPDU_BUF 0x40 923 924 925 /* Spatial Multiplexing Power Save Modes */ 926 #define WLAN_HT_CAP_SM_PS_STATIC 0 927 #define WLAN_HT_CAP_SM_PS_DYNAMIC 1 928 #define WLAN_HT_CAP_SM_PS_INVALID 2 929 #define WLAN_HT_CAP_SM_PS_DISABLED 3 930 931 /* Authentication algorithms */ 932 #define WLAN_AUTH_OPEN 0 933 #define WLAN_AUTH_SHARED_KEY 1 934 #define WLAN_AUTH_FT 2 935 #define WLAN_AUTH_LEAP 128 936 937 #define WLAN_AUTH_CHALLENGE_LEN 128 938 939 #define WLAN_CAPABILITY_ESS (1<<0) 940 #define WLAN_CAPABILITY_IBSS (1<<1) 941 #define WLAN_CAPABILITY_CF_POLLABLE (1<<2) 942 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3) 943 #define WLAN_CAPABILITY_PRIVACY (1<<4) 944 #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5) 945 #define WLAN_CAPABILITY_PBCC (1<<6) 946 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7) 947 948 /* 802.11h */ 949 #define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8) 950 #define WLAN_CAPABILITY_QOS (1<<9) 951 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10) 952 #define WLAN_CAPABILITY_DSSS_OFDM (1<<13) 953 /* measurement */ 954 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE (1<<0) 955 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE (1<<1) 956 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED (1<<2) 957 958 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC 0 959 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA 1 960 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI 2 961 962 963 /* 802.11g ERP information element */ 964 #define WLAN_ERP_NON_ERP_PRESENT (1<<0) 965 #define WLAN_ERP_USE_PROTECTION (1<<1) 966 #define WLAN_ERP_BARKER_PREAMBLE (1<<2) 967 968 /* WLAN_ERP_BARKER_PREAMBLE values */ 969 enum { 970 WLAN_ERP_PREAMBLE_SHORT = 0, 971 WLAN_ERP_PREAMBLE_LONG = 1, 972 }; 973 974 /* Status codes */ 975 enum ieee80211_statuscode { 976 WLAN_STATUS_SUCCESS = 0, 977 WLAN_STATUS_UNSPECIFIED_FAILURE = 1, 978 WLAN_STATUS_CAPS_UNSUPPORTED = 10, 979 WLAN_STATUS_REASSOC_NO_ASSOC = 11, 980 WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12, 981 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13, 982 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14, 983 WLAN_STATUS_CHALLENGE_FAIL = 15, 984 WLAN_STATUS_AUTH_TIMEOUT = 16, 985 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17, 986 WLAN_STATUS_ASSOC_DENIED_RATES = 18, 987 /* 802.11b */ 988 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19, 989 WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20, 990 WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21, 991 /* 802.11h */ 992 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22, 993 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23, 994 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24, 995 /* 802.11g */ 996 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25, 997 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26, 998 /* 802.11w */ 999 WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30, 1000 WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31, 1001 /* 802.11i */ 1002 WLAN_STATUS_INVALID_IE = 40, 1003 WLAN_STATUS_INVALID_GROUP_CIPHER = 41, 1004 WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42, 1005 WLAN_STATUS_INVALID_AKMP = 43, 1006 WLAN_STATUS_UNSUPP_RSN_VERSION = 44, 1007 WLAN_STATUS_INVALID_RSN_IE_CAP = 45, 1008 WLAN_STATUS_CIPHER_SUITE_REJECTED = 46, 1009 /* 802.11e */ 1010 WLAN_STATUS_UNSPECIFIED_QOS = 32, 1011 WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33, 1012 WLAN_STATUS_ASSOC_DENIED_LOWACK = 34, 1013 WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35, 1014 WLAN_STATUS_REQUEST_DECLINED = 37, 1015 WLAN_STATUS_INVALID_QOS_PARAM = 38, 1016 WLAN_STATUS_CHANGE_TSPEC = 39, 1017 WLAN_STATUS_WAIT_TS_DELAY = 47, 1018 WLAN_STATUS_NO_DIRECT_LINK = 48, 1019 WLAN_STATUS_STA_NOT_PRESENT = 49, 1020 WLAN_STATUS_STA_NOT_QSTA = 50, 1021 }; 1022 1023 1024 /* Reason codes */ 1025 enum ieee80211_reasoncode { 1026 WLAN_REASON_UNSPECIFIED = 1, 1027 WLAN_REASON_PREV_AUTH_NOT_VALID = 2, 1028 WLAN_REASON_DEAUTH_LEAVING = 3, 1029 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4, 1030 WLAN_REASON_DISASSOC_AP_BUSY = 5, 1031 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6, 1032 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7, 1033 WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8, 1034 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9, 1035 /* 802.11h */ 1036 WLAN_REASON_DISASSOC_BAD_POWER = 10, 1037 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11, 1038 /* 802.11i */ 1039 WLAN_REASON_INVALID_IE = 13, 1040 WLAN_REASON_MIC_FAILURE = 14, 1041 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15, 1042 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16, 1043 WLAN_REASON_IE_DIFFERENT = 17, 1044 WLAN_REASON_INVALID_GROUP_CIPHER = 18, 1045 WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19, 1046 WLAN_REASON_INVALID_AKMP = 20, 1047 WLAN_REASON_UNSUPP_RSN_VERSION = 21, 1048 WLAN_REASON_INVALID_RSN_IE_CAP = 22, 1049 WLAN_REASON_IEEE8021X_FAILED = 23, 1050 WLAN_REASON_CIPHER_SUITE_REJECTED = 24, 1051 /* 802.11e */ 1052 WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32, 1053 WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33, 1054 WLAN_REASON_DISASSOC_LOW_ACK = 34, 1055 WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35, 1056 WLAN_REASON_QSTA_LEAVE_QBSS = 36, 1057 WLAN_REASON_QSTA_NOT_USE = 37, 1058 WLAN_REASON_QSTA_REQUIRE_SETUP = 38, 1059 WLAN_REASON_QSTA_TIMEOUT = 39, 1060 WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45, 1061 }; 1062 1063 1064 /* Information Element IDs */ 1065 enum ieee80211_eid { 1066 WLAN_EID_SSID = 0, 1067 WLAN_EID_SUPP_RATES = 1, 1068 WLAN_EID_FH_PARAMS = 2, 1069 WLAN_EID_DS_PARAMS = 3, 1070 WLAN_EID_CF_PARAMS = 4, 1071 WLAN_EID_TIM = 5, 1072 WLAN_EID_IBSS_PARAMS = 6, 1073 WLAN_EID_CHALLENGE = 16, 1074 /* 802.11d */ 1075 WLAN_EID_COUNTRY = 7, 1076 WLAN_EID_HP_PARAMS = 8, 1077 WLAN_EID_HP_TABLE = 9, 1078 WLAN_EID_REQUEST = 10, 1079 /* 802.11e */ 1080 WLAN_EID_QBSS_LOAD = 11, 1081 WLAN_EID_EDCA_PARAM_SET = 12, 1082 WLAN_EID_TSPEC = 13, 1083 WLAN_EID_TCLAS = 14, 1084 WLAN_EID_SCHEDULE = 15, 1085 WLAN_EID_TS_DELAY = 43, 1086 WLAN_EID_TCLAS_PROCESSING = 44, 1087 WLAN_EID_QOS_CAPA = 46, 1088 /* 802.11s 1089 * 1090 * All mesh EID numbers are pending IEEE 802.11 ANA approval. 1091 * The numbers have been incremented from those suggested in 1092 * 802.11s/D2.0 so that MESH_CONFIG does not conflict with 1093 * EXT_SUPP_RATES. 1094 */ 1095 WLAN_EID_MESH_CONFIG = 51, 1096 WLAN_EID_MESH_ID = 52, 1097 WLAN_EID_PEER_LINK = 55, 1098 WLAN_EID_PREQ = 68, 1099 WLAN_EID_PREP = 69, 1100 WLAN_EID_PERR = 70, 1101 WLAN_EID_RANN = 49, /* compatible with FreeBSD */ 1102 /* 802.11h */ 1103 WLAN_EID_PWR_CONSTRAINT = 32, 1104 WLAN_EID_PWR_CAPABILITY = 33, 1105 WLAN_EID_TPC_REQUEST = 34, 1106 WLAN_EID_TPC_REPORT = 35, 1107 WLAN_EID_SUPPORTED_CHANNELS = 36, 1108 WLAN_EID_CHANNEL_SWITCH = 37, 1109 WLAN_EID_MEASURE_REQUEST = 38, 1110 WLAN_EID_MEASURE_REPORT = 39, 1111 WLAN_EID_QUIET = 40, 1112 WLAN_EID_IBSS_DFS = 41, 1113 /* 802.11g */ 1114 WLAN_EID_ERP_INFO = 42, 1115 WLAN_EID_EXT_SUPP_RATES = 50, 1116 /* 802.11n */ 1117 WLAN_EID_HT_CAPABILITY = 45, 1118 WLAN_EID_HT_INFORMATION = 61, 1119 /* 802.11i */ 1120 WLAN_EID_RSN = 48, 1121 WLAN_EID_TIMEOUT_INTERVAL = 56, 1122 WLAN_EID_MMIE = 76 /* 802.11w */, 1123 WLAN_EID_WPA = 221, 1124 WLAN_EID_GENERIC = 221, 1125 WLAN_EID_VENDOR_SPECIFIC = 221, 1126 WLAN_EID_QOS_PARAMETER = 222 1127 }; 1128 1129 /* Action category code */ 1130 enum ieee80211_category { 1131 WLAN_CATEGORY_SPECTRUM_MGMT = 0, 1132 WLAN_CATEGORY_QOS = 1, 1133 WLAN_CATEGORY_DLS = 2, 1134 WLAN_CATEGORY_BACK = 3, 1135 WLAN_CATEGORY_PUBLIC = 4, 1136 WLAN_CATEGORY_HT = 7, 1137 WLAN_CATEGORY_SA_QUERY = 8, 1138 WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9, 1139 WLAN_CATEGORY_WMM = 17, 1140 WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126, 1141 WLAN_CATEGORY_VENDOR_SPECIFIC = 127, 1142 }; 1143 1144 /* SPECTRUM_MGMT action code */ 1145 enum ieee80211_spectrum_mgmt_actioncode { 1146 WLAN_ACTION_SPCT_MSR_REQ = 0, 1147 WLAN_ACTION_SPCT_MSR_RPRT = 1, 1148 WLAN_ACTION_SPCT_TPC_REQ = 2, 1149 WLAN_ACTION_SPCT_TPC_RPRT = 3, 1150 WLAN_ACTION_SPCT_CHL_SWITCH = 4, 1151 }; 1152 1153 /* Security key length */ 1154 enum ieee80211_key_len { 1155 WLAN_KEY_LEN_WEP40 = 5, 1156 WLAN_KEY_LEN_WEP104 = 13, 1157 WLAN_KEY_LEN_CCMP = 16, 1158 WLAN_KEY_LEN_TKIP = 32, 1159 WLAN_KEY_LEN_AES_CMAC = 16, 1160 }; 1161 1162 /* 1163 * IEEE 802.11-2007 7.3.2.9 Country information element 1164 * 1165 * Minimum length is 8 octets, ie len must be evenly 1166 * divisible by 2 1167 */ 1168 1169 /* Although the spec says 8 I'm seeing 6 in practice */ 1170 #define IEEE80211_COUNTRY_IE_MIN_LEN 6 1171 1172 /* 1173 * For regulatory extension stuff see IEEE 802.11-2007 1174 * Annex I (page 1141) and Annex J (page 1147). Also 1175 * review 7.3.2.9. 1176 * 1177 * When dot11RegulatoryClassesRequired is true and the 1178 * first_channel/reg_extension_id is >= 201 then the IE 1179 * compromises of the 'ext' struct represented below: 1180 * 1181 * - Regulatory extension ID - when generating IE this just needs 1182 * to be monotonically increasing for each triplet passed in 1183 * the IE 1184 * - Regulatory class - index into set of rules 1185 * - Coverage class - index into air propagation time (Table 7-27), 1186 * in microseconds, you can compute the air propagation time from 1187 * the index by multiplying by 3, so index 10 yields a propagation 1188 * of 10 us. Valid values are 0-31, values 32-255 are not defined 1189 * yet. A value of 0 inicates air propagation of <= 1 us. 1190 * 1191 * See also Table I.2 for Emission limit sets and table 1192 * I.3 for Behavior limit sets. Table J.1 indicates how to map 1193 * a reg_class to an emission limit set and behavior limit set. 1194 */ 1195 #define IEEE80211_COUNTRY_EXTENSION_ID 201 1196 1197 /* 1198 * Channels numbers in the IE must be monotonically increasing 1199 * if dot11RegulatoryClassesRequired is not true. 1200 * 1201 * If dot11RegulatoryClassesRequired is true consecutive 1202 * subband triplets following a regulatory triplet shall 1203 * have monotonically increasing first_channel number fields. 1204 * 1205 * Channel numbers shall not overlap. 1206 * 1207 * Note that max_power is signed. 1208 */ 1209 struct ieee80211_country_ie_triplet { 1210 union { 1211 struct { 1212 u8 first_channel; 1213 u8 num_channels; 1214 s8 max_power; 1215 } __attribute__ ((packed)) chans; 1216 struct { 1217 u8 reg_extension_id; 1218 u8 reg_class; 1219 u8 coverage_class; 1220 } __attribute__ ((packed)) ext; 1221 }; 1222 } __attribute__ ((packed)); 1223 1224 enum ieee80211_timeout_interval_type { 1225 WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */, 1226 WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */, 1227 WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */, 1228 }; 1229 1230 /* BACK action code */ 1231 enum ieee80211_back_actioncode { 1232 WLAN_ACTION_ADDBA_REQ = 0, 1233 WLAN_ACTION_ADDBA_RESP = 1, 1234 WLAN_ACTION_DELBA = 2, 1235 }; 1236 1237 /* BACK (block-ack) parties */ 1238 enum ieee80211_back_parties { 1239 WLAN_BACK_RECIPIENT = 0, 1240 WLAN_BACK_INITIATOR = 1, 1241 WLAN_BACK_TIMER = 2, 1242 }; 1243 1244 /* SA Query action */ 1245 enum ieee80211_sa_query_action { 1246 WLAN_ACTION_SA_QUERY_REQUEST = 0, 1247 WLAN_ACTION_SA_QUERY_RESPONSE = 1, 1248 }; 1249 1250 1251 /* A-MSDU 802.11n */ 1252 #define IEEE80211_QOS_CONTROL_A_MSDU_PRESENT 0x0080 1253 1254 /* cipher suite selectors */ 1255 #define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00 1256 #define WLAN_CIPHER_SUITE_WEP40 0x000FAC01 1257 #define WLAN_CIPHER_SUITE_TKIP 0x000FAC02 1258 /* reserved: 0x000FAC03 */ 1259 #define WLAN_CIPHER_SUITE_CCMP 0x000FAC04 1260 #define WLAN_CIPHER_SUITE_WEP104 0x000FAC05 1261 #define WLAN_CIPHER_SUITE_AES_CMAC 0x000FAC06 1262 1263 /* AKM suite selectors */ 1264 #define WLAN_AKM_SUITE_8021X 0x000FAC01 1265 #define WLAN_AKM_SUITE_PSK 0x000FAC02 1266 1267 #define WLAN_MAX_KEY_LEN 32 1268 1269 #define WLAN_PMKID_LEN 16 1270 1271 /** 1272 * ieee80211_get_qos_ctl - get pointer to qos control bytes 1273 * @hdr: the frame 1274 * 1275 * The qos ctrl bytes come after the frame_control, duration, seq_num 1276 * and 3 or 4 addresses of length ETH_ALEN. 1277 * 3 addr: 2 + 2 + 2 + 3*6 = 24 1278 * 4 addr: 2 + 2 + 2 + 4*6 = 30 1279 */ 1280 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr) 1281 { 1282 if (ieee80211_has_a4(hdr->frame_control)) 1283 return (u8 *)hdr + 30; 1284 else 1285 return (u8 *)hdr + 24; 1286 } 1287 1288 /** 1289 * ieee80211_get_SA - get pointer to SA 1290 * @hdr: the frame 1291 * 1292 * Given an 802.11 frame, this function returns the offset 1293 * to the source address (SA). It does not verify that the 1294 * header is long enough to contain the address, and the 1295 * header must be long enough to contain the frame control 1296 * field. 1297 */ 1298 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr) 1299 { 1300 if (ieee80211_has_a4(hdr->frame_control)) 1301 return hdr->addr4; 1302 if (ieee80211_has_fromds(hdr->frame_control)) 1303 return hdr->addr3; 1304 return hdr->addr2; 1305 } 1306 1307 /** 1308 * ieee80211_get_DA - get pointer to DA 1309 * @hdr: the frame 1310 * 1311 * Given an 802.11 frame, this function returns the offset 1312 * to the destination address (DA). It does not verify that 1313 * the header is long enough to contain the address, and the 1314 * header must be long enough to contain the frame control 1315 * field. 1316 */ 1317 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr) 1318 { 1319 if (ieee80211_has_tods(hdr->frame_control)) 1320 return hdr->addr3; 1321 else 1322 return hdr->addr1; 1323 } 1324 1325 /** 1326 * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame 1327 * @hdr: the frame (buffer must include at least the first octet of payload) 1328 */ 1329 static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr) 1330 { 1331 if (ieee80211_is_disassoc(hdr->frame_control) || 1332 ieee80211_is_deauth(hdr->frame_control)) 1333 return true; 1334 1335 if (ieee80211_is_action(hdr->frame_control)) { 1336 u8 *category; 1337 1338 /* 1339 * Action frames, excluding Public Action frames, are Robust 1340 * Management Frames. However, if we are looking at a Protected 1341 * frame, skip the check since the data may be encrypted and 1342 * the frame has already been found to be a Robust Management 1343 * Frame (by the other end). 1344 */ 1345 if (ieee80211_has_protected(hdr->frame_control)) 1346 return true; 1347 category = ((u8 *) hdr) + 24; 1348 return *category != WLAN_CATEGORY_PUBLIC && 1349 *category != WLAN_CATEGORY_HT && 1350 *category != WLAN_CATEGORY_VENDOR_SPECIFIC; 1351 } 1352 1353 return false; 1354 } 1355 1356 /** 1357 * ieee80211_fhss_chan_to_freq - get channel frequency 1358 * @channel: the FHSS channel 1359 * 1360 * Convert IEEE802.11 FHSS channel to frequency (MHz) 1361 * Ref IEEE 802.11-2007 section 14.6 1362 */ 1363 static inline int ieee80211_fhss_chan_to_freq(int channel) 1364 { 1365 if ((channel > 1) && (channel < 96)) 1366 return channel + 2400; 1367 else 1368 return -1; 1369 } 1370 1371 /** 1372 * ieee80211_freq_to_fhss_chan - get channel 1373 * @freq: the channels frequency 1374 * 1375 * Convert frequency (MHz) to IEEE802.11 FHSS channel 1376 * Ref IEEE 802.11-2007 section 14.6 1377 */ 1378 static inline int ieee80211_freq_to_fhss_chan(int freq) 1379 { 1380 if ((freq > 2401) && (freq < 2496)) 1381 return freq - 2400; 1382 else 1383 return -1; 1384 } 1385 1386 /** 1387 * ieee80211_dsss_chan_to_freq - get channel center frequency 1388 * @channel: the DSSS channel 1389 * 1390 * Convert IEEE802.11 DSSS channel to the center frequency (MHz). 1391 * Ref IEEE 802.11-2007 section 15.6 1392 */ 1393 static inline int ieee80211_dsss_chan_to_freq(int channel) 1394 { 1395 if ((channel > 0) && (channel < 14)) 1396 return 2407 + (channel * 5); 1397 else if (channel == 14) 1398 return 2484; 1399 else 1400 return -1; 1401 } 1402 1403 /** 1404 * ieee80211_freq_to_dsss_chan - get channel 1405 * @freq: the frequency 1406 * 1407 * Convert frequency (MHz) to IEEE802.11 DSSS channel 1408 * Ref IEEE 802.11-2007 section 15.6 1409 * 1410 * This routine selects the channel with the closest center frequency. 1411 */ 1412 static inline int ieee80211_freq_to_dsss_chan(int freq) 1413 { 1414 if ((freq >= 2410) && (freq < 2475)) 1415 return (freq - 2405) / 5; 1416 else if ((freq >= 2482) && (freq < 2487)) 1417 return 14; 1418 else 1419 return -1; 1420 } 1421 1422 /* Convert IEEE802.11 HR DSSS channel to frequency (MHz) and back 1423 * Ref IEEE 802.11-2007 section 18.4.6.2 1424 * 1425 * The channels and frequencies are the same as those defined for DSSS 1426 */ 1427 #define ieee80211_hr_chan_to_freq(chan) ieee80211_dsss_chan_to_freq(chan) 1428 #define ieee80211_freq_to_hr_chan(freq) ieee80211_freq_to_dsss_chan(freq) 1429 1430 /* Convert IEEE802.11 ERP channel to frequency (MHz) and back 1431 * Ref IEEE 802.11-2007 section 19.4.2 1432 */ 1433 #define ieee80211_erp_chan_to_freq(chan) ieee80211_hr_chan_to_freq(chan) 1434 #define ieee80211_freq_to_erp_chan(freq) ieee80211_freq_to_hr_chan(freq) 1435 1436 /** 1437 * ieee80211_ofdm_chan_to_freq - get channel center frequency 1438 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz 1439 * @channel: the OFDM channel 1440 * 1441 * Convert IEEE802.11 OFDM channel to center frequency (MHz) 1442 * Ref IEEE 802.11-2007 section 17.3.8.3.2 1443 */ 1444 static inline int ieee80211_ofdm_chan_to_freq(int s_freq, int channel) 1445 { 1446 if ((channel > 0) && (channel <= 200) && 1447 (s_freq >= 4000)) 1448 return s_freq + (channel * 5); 1449 else 1450 return -1; 1451 } 1452 1453 /** 1454 * ieee80211_freq_to_ofdm_channel - get channel 1455 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz 1456 * @freq: the frequency 1457 * 1458 * Convert frequency (MHz) to IEEE802.11 OFDM channel 1459 * Ref IEEE 802.11-2007 section 17.3.8.3.2 1460 * 1461 * This routine selects the channel with the closest center frequency. 1462 */ 1463 static inline int ieee80211_freq_to_ofdm_chan(int s_freq, int freq) 1464 { 1465 if ((freq > (s_freq + 2)) && (freq <= (s_freq + 1202)) && 1466 (s_freq >= 4000)) 1467 return (freq + 2 - s_freq) / 5; 1468 else 1469 return -1; 1470 } 1471 1472 /** 1473 * ieee80211_tu_to_usec - convert time units (TU) to microseconds 1474 * @tu: the TUs 1475 */ 1476 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu) 1477 { 1478 return 1024 * tu; 1479 } 1480 1481 /** 1482 * ieee80211_check_tim - check if AID bit is set in TIM 1483 * @tim: the TIM IE 1484 * @tim_len: length of the TIM IE 1485 * @aid: the AID to look for 1486 */ 1487 static inline bool ieee80211_check_tim(struct ieee80211_tim_ie *tim, 1488 u8 tim_len, u16 aid) 1489 { 1490 u8 mask; 1491 u8 index, indexn1, indexn2; 1492 1493 if (unlikely(!tim || tim_len < sizeof(*tim))) 1494 return false; 1495 1496 aid &= 0x3fff; 1497 index = aid / 8; 1498 mask = 1 << (aid & 7); 1499 1500 indexn1 = tim->bitmap_ctrl & 0xfe; 1501 indexn2 = tim_len + indexn1 - 4; 1502 1503 if (index < indexn1 || index > indexn2) 1504 return false; 1505 1506 index -= indexn1; 1507 1508 return !!(tim->virtual_map[index] & mask); 1509 } 1510 1511 #endif /* LINUX_IEEE80211_H */ 1512