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 #define FCS_LEN 4 22 23 #define IEEE80211_FCTL_VERS 0x0003 24 #define IEEE80211_FCTL_FTYPE 0x000c 25 #define IEEE80211_FCTL_STYPE 0x00f0 26 #define IEEE80211_FCTL_TODS 0x0100 27 #define IEEE80211_FCTL_FROMDS 0x0200 28 #define IEEE80211_FCTL_MOREFRAGS 0x0400 29 #define IEEE80211_FCTL_RETRY 0x0800 30 #define IEEE80211_FCTL_PM 0x1000 31 #define IEEE80211_FCTL_MOREDATA 0x2000 32 #define IEEE80211_FCTL_PROTECTED 0x4000 33 #define IEEE80211_FCTL_ORDER 0x8000 34 35 #define IEEE80211_SCTL_FRAG 0x000F 36 #define IEEE80211_SCTL_SEQ 0xFFF0 37 38 #define IEEE80211_FTYPE_MGMT 0x0000 39 #define IEEE80211_FTYPE_CTL 0x0004 40 #define IEEE80211_FTYPE_DATA 0x0008 41 42 /* management */ 43 #define IEEE80211_STYPE_ASSOC_REQ 0x0000 44 #define IEEE80211_STYPE_ASSOC_RESP 0x0010 45 #define IEEE80211_STYPE_REASSOC_REQ 0x0020 46 #define IEEE80211_STYPE_REASSOC_RESP 0x0030 47 #define IEEE80211_STYPE_PROBE_REQ 0x0040 48 #define IEEE80211_STYPE_PROBE_RESP 0x0050 49 #define IEEE80211_STYPE_BEACON 0x0080 50 #define IEEE80211_STYPE_ATIM 0x0090 51 #define IEEE80211_STYPE_DISASSOC 0x00A0 52 #define IEEE80211_STYPE_AUTH 0x00B0 53 #define IEEE80211_STYPE_DEAUTH 0x00C0 54 #define IEEE80211_STYPE_ACTION 0x00D0 55 56 /* control */ 57 #define IEEE80211_STYPE_BACK_REQ 0x0080 58 #define IEEE80211_STYPE_BACK 0x0090 59 #define IEEE80211_STYPE_PSPOLL 0x00A0 60 #define IEEE80211_STYPE_RTS 0x00B0 61 #define IEEE80211_STYPE_CTS 0x00C0 62 #define IEEE80211_STYPE_ACK 0x00D0 63 #define IEEE80211_STYPE_CFEND 0x00E0 64 #define IEEE80211_STYPE_CFENDACK 0x00F0 65 66 /* data */ 67 #define IEEE80211_STYPE_DATA 0x0000 68 #define IEEE80211_STYPE_DATA_CFACK 0x0010 69 #define IEEE80211_STYPE_DATA_CFPOLL 0x0020 70 #define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030 71 #define IEEE80211_STYPE_NULLFUNC 0x0040 72 #define IEEE80211_STYPE_CFACK 0x0050 73 #define IEEE80211_STYPE_CFPOLL 0x0060 74 #define IEEE80211_STYPE_CFACKPOLL 0x0070 75 #define IEEE80211_STYPE_QOS_DATA 0x0080 76 #define IEEE80211_STYPE_QOS_DATA_CFACK 0x0090 77 #define IEEE80211_STYPE_QOS_DATA_CFPOLL 0x00A0 78 #define IEEE80211_STYPE_QOS_DATA_CFACKPOLL 0x00B0 79 #define IEEE80211_STYPE_QOS_NULLFUNC 0x00C0 80 #define IEEE80211_STYPE_QOS_CFACK 0x00D0 81 #define IEEE80211_STYPE_QOS_CFPOLL 0x00E0 82 #define IEEE80211_STYPE_QOS_CFACKPOLL 0x00F0 83 84 85 /* miscellaneous IEEE 802.11 constants */ 86 #define IEEE80211_MAX_FRAG_THRESHOLD 2352 87 #define IEEE80211_MAX_RTS_THRESHOLD 2353 88 #define IEEE80211_MAX_AID 2007 89 #define IEEE80211_MAX_TIM_LEN 251 90 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section 91 6.2.1.1.2. 92 93 802.11e clarifies the figure in section 7.1.2. The frame body is 94 up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */ 95 #define IEEE80211_MAX_DATA_LEN 2304 96 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */ 97 #define IEEE80211_MAX_FRAME_LEN 2352 98 99 #define IEEE80211_MAX_SSID_LEN 32 100 101 #define IEEE80211_MAX_MESH_ID_LEN 32 102 #define IEEE80211_MESH_CONFIG_LEN 19 103 104 #define IEEE80211_QOS_CTL_LEN 2 105 #define IEEE80211_QOS_CTL_TID_MASK 0x000F 106 #define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007 107 108 struct ieee80211_hdr { 109 __le16 frame_control; 110 __le16 duration_id; 111 u8 addr1[6]; 112 u8 addr2[6]; 113 u8 addr3[6]; 114 __le16 seq_ctrl; 115 u8 addr4[6]; 116 } __attribute__ ((packed)); 117 118 /** 119 * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set 120 * @fc: frame control bytes in little-endian byteorder 121 */ 122 static inline int ieee80211_has_tods(__le16 fc) 123 { 124 return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0; 125 } 126 127 /** 128 * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set 129 * @fc: frame control bytes in little-endian byteorder 130 */ 131 static inline int ieee80211_has_fromds(__le16 fc) 132 { 133 return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0; 134 } 135 136 /** 137 * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set 138 * @fc: frame control bytes in little-endian byteorder 139 */ 140 static inline int ieee80211_has_a4(__le16 fc) 141 { 142 __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS); 143 return (fc & tmp) == tmp; 144 } 145 146 /** 147 * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set 148 * @fc: frame control bytes in little-endian byteorder 149 */ 150 static inline int ieee80211_has_morefrags(__le16 fc) 151 { 152 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0; 153 } 154 155 /** 156 * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set 157 * @fc: frame control bytes in little-endian byteorder 158 */ 159 static inline int ieee80211_has_retry(__le16 fc) 160 { 161 return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0; 162 } 163 164 /** 165 * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set 166 * @fc: frame control bytes in little-endian byteorder 167 */ 168 static inline int ieee80211_has_pm(__le16 fc) 169 { 170 return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0; 171 } 172 173 /** 174 * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set 175 * @fc: frame control bytes in little-endian byteorder 176 */ 177 static inline int ieee80211_has_moredata(__le16 fc) 178 { 179 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0; 180 } 181 182 /** 183 * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set 184 * @fc: frame control bytes in little-endian byteorder 185 */ 186 static inline int ieee80211_has_protected(__le16 fc) 187 { 188 return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0; 189 } 190 191 /** 192 * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set 193 * @fc: frame control bytes in little-endian byteorder 194 */ 195 static inline int ieee80211_has_order(__le16 fc) 196 { 197 return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0; 198 } 199 200 /** 201 * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT 202 * @fc: frame control bytes in little-endian byteorder 203 */ 204 static inline int ieee80211_is_mgmt(__le16 fc) 205 { 206 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) == 207 cpu_to_le16(IEEE80211_FTYPE_MGMT); 208 } 209 210 /** 211 * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL 212 * @fc: frame control bytes in little-endian byteorder 213 */ 214 static inline int ieee80211_is_ctl(__le16 fc) 215 { 216 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) == 217 cpu_to_le16(IEEE80211_FTYPE_CTL); 218 } 219 220 /** 221 * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA 222 * @fc: frame control bytes in little-endian byteorder 223 */ 224 static inline int ieee80211_is_data(__le16 fc) 225 { 226 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) == 227 cpu_to_le16(IEEE80211_FTYPE_DATA); 228 } 229 230 /** 231 * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set 232 * @fc: frame control bytes in little-endian byteorder 233 */ 234 static inline int ieee80211_is_data_qos(__le16 fc) 235 { 236 /* 237 * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need 238 * to check the one bit 239 */ 240 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) == 241 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA); 242 } 243 244 /** 245 * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data 246 * @fc: frame control bytes in little-endian byteorder 247 */ 248 static inline int ieee80211_is_data_present(__le16 fc) 249 { 250 /* 251 * mask with 0x40 and test that that bit is clear to only return true 252 * for the data-containing substypes. 253 */ 254 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) == 255 cpu_to_le16(IEEE80211_FTYPE_DATA); 256 } 257 258 /** 259 * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ 260 * @fc: frame control bytes in little-endian byteorder 261 */ 262 static inline int ieee80211_is_assoc_req(__le16 fc) 263 { 264 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 265 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ); 266 } 267 268 /** 269 * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP 270 * @fc: frame control bytes in little-endian byteorder 271 */ 272 static inline int ieee80211_is_assoc_resp(__le16 fc) 273 { 274 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 275 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP); 276 } 277 278 /** 279 * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ 280 * @fc: frame control bytes in little-endian byteorder 281 */ 282 static inline int ieee80211_is_reassoc_req(__le16 fc) 283 { 284 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 285 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ); 286 } 287 288 /** 289 * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP 290 * @fc: frame control bytes in little-endian byteorder 291 */ 292 static inline int ieee80211_is_reassoc_resp(__le16 fc) 293 { 294 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 295 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP); 296 } 297 298 /** 299 * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ 300 * @fc: frame control bytes in little-endian byteorder 301 */ 302 static inline int ieee80211_is_probe_req(__le16 fc) 303 { 304 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 305 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ); 306 } 307 308 /** 309 * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP 310 * @fc: frame control bytes in little-endian byteorder 311 */ 312 static inline int ieee80211_is_probe_resp(__le16 fc) 313 { 314 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 315 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP); 316 } 317 318 /** 319 * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON 320 * @fc: frame control bytes in little-endian byteorder 321 */ 322 static inline int ieee80211_is_beacon(__le16 fc) 323 { 324 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 325 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON); 326 } 327 328 /** 329 * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM 330 * @fc: frame control bytes in little-endian byteorder 331 */ 332 static inline int ieee80211_is_atim(__le16 fc) 333 { 334 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 335 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM); 336 } 337 338 /** 339 * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC 340 * @fc: frame control bytes in little-endian byteorder 341 */ 342 static inline int ieee80211_is_disassoc(__le16 fc) 343 { 344 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 345 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC); 346 } 347 348 /** 349 * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH 350 * @fc: frame control bytes in little-endian byteorder 351 */ 352 static inline int ieee80211_is_auth(__le16 fc) 353 { 354 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 355 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH); 356 } 357 358 /** 359 * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH 360 * @fc: frame control bytes in little-endian byteorder 361 */ 362 static inline int ieee80211_is_deauth(__le16 fc) 363 { 364 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 365 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH); 366 } 367 368 /** 369 * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION 370 * @fc: frame control bytes in little-endian byteorder 371 */ 372 static inline int ieee80211_is_action(__le16 fc) 373 { 374 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 375 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION); 376 } 377 378 /** 379 * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ 380 * @fc: frame control bytes in little-endian byteorder 381 */ 382 static inline int ieee80211_is_back_req(__le16 fc) 383 { 384 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 385 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ); 386 } 387 388 /** 389 * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK 390 * @fc: frame control bytes in little-endian byteorder 391 */ 392 static inline int ieee80211_is_back(__le16 fc) 393 { 394 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 395 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK); 396 } 397 398 /** 399 * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL 400 * @fc: frame control bytes in little-endian byteorder 401 */ 402 static inline int ieee80211_is_pspoll(__le16 fc) 403 { 404 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 405 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL); 406 } 407 408 /** 409 * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS 410 * @fc: frame control bytes in little-endian byteorder 411 */ 412 static inline int ieee80211_is_rts(__le16 fc) 413 { 414 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 415 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS); 416 } 417 418 /** 419 * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS 420 * @fc: frame control bytes in little-endian byteorder 421 */ 422 static inline int ieee80211_is_cts(__le16 fc) 423 { 424 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 425 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS); 426 } 427 428 /** 429 * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK 430 * @fc: frame control bytes in little-endian byteorder 431 */ 432 static inline int ieee80211_is_ack(__le16 fc) 433 { 434 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 435 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK); 436 } 437 438 /** 439 * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND 440 * @fc: frame control bytes in little-endian byteorder 441 */ 442 static inline int ieee80211_is_cfend(__le16 fc) 443 { 444 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 445 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND); 446 } 447 448 /** 449 * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK 450 * @fc: frame control bytes in little-endian byteorder 451 */ 452 static inline int ieee80211_is_cfendack(__le16 fc) 453 { 454 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 455 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK); 456 } 457 458 /** 459 * ieee80211_is_nullfunc - check if FTYPE=IEEE80211_FTYPE_DATA and STYPE=IEEE80211_STYPE_NULLFUNC 460 * @fc: frame control bytes in little-endian byteorder 461 */ 462 static inline int ieee80211_is_nullfunc(__le16 fc) 463 { 464 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 465 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC); 466 } 467 468 struct ieee80211s_hdr { 469 u8 flags; 470 u8 ttl; 471 __le32 seqnum; 472 u8 eaddr1[6]; 473 u8 eaddr2[6]; 474 u8 eaddr3[6]; 475 } __attribute__ ((packed)); 476 477 /* Mesh flags */ 478 #define MESH_FLAGS_AE_A4 0x1 479 #define MESH_FLAGS_AE_A5_A6 0x2 480 #define MESH_FLAGS_PS_DEEP 0x4 481 482 /** 483 * struct ieee80211_quiet_ie 484 * 485 * This structure refers to "Quiet information element" 486 */ 487 struct ieee80211_quiet_ie { 488 u8 count; 489 u8 period; 490 __le16 duration; 491 __le16 offset; 492 } __attribute__ ((packed)); 493 494 /** 495 * struct ieee80211_msrment_ie 496 * 497 * This structure refers to "Measurement Request/Report information element" 498 */ 499 struct ieee80211_msrment_ie { 500 u8 token; 501 u8 mode; 502 u8 type; 503 u8 request[0]; 504 } __attribute__ ((packed)); 505 506 /** 507 * struct ieee80211_channel_sw_ie 508 * 509 * This structure refers to "Channel Switch Announcement information element" 510 */ 511 struct ieee80211_channel_sw_ie { 512 u8 mode; 513 u8 new_ch_num; 514 u8 count; 515 } __attribute__ ((packed)); 516 517 /** 518 * struct ieee80211_tim 519 * 520 * This structure refers to "Traffic Indication Map information element" 521 */ 522 struct ieee80211_tim_ie { 523 u8 dtim_count; 524 u8 dtim_period; 525 u8 bitmap_ctrl; 526 /* variable size: 1 - 251 bytes */ 527 u8 virtual_map[0]; 528 } __attribute__ ((packed)); 529 530 struct ieee80211_mgmt { 531 __le16 frame_control; 532 __le16 duration; 533 u8 da[6]; 534 u8 sa[6]; 535 u8 bssid[6]; 536 __le16 seq_ctrl; 537 union { 538 struct { 539 __le16 auth_alg; 540 __le16 auth_transaction; 541 __le16 status_code; 542 /* possibly followed by Challenge text */ 543 u8 variable[0]; 544 } __attribute__ ((packed)) auth; 545 struct { 546 __le16 reason_code; 547 } __attribute__ ((packed)) deauth; 548 struct { 549 __le16 capab_info; 550 __le16 listen_interval; 551 /* followed by SSID and Supported rates */ 552 u8 variable[0]; 553 } __attribute__ ((packed)) assoc_req; 554 struct { 555 __le16 capab_info; 556 __le16 status_code; 557 __le16 aid; 558 /* followed by Supported rates */ 559 u8 variable[0]; 560 } __attribute__ ((packed)) assoc_resp, reassoc_resp; 561 struct { 562 __le16 capab_info; 563 __le16 listen_interval; 564 u8 current_ap[6]; 565 /* followed by SSID and Supported rates */ 566 u8 variable[0]; 567 } __attribute__ ((packed)) reassoc_req; 568 struct { 569 __le16 reason_code; 570 } __attribute__ ((packed)) disassoc; 571 struct { 572 __le64 timestamp; 573 __le16 beacon_int; 574 __le16 capab_info; 575 /* followed by some of SSID, Supported rates, 576 * FH Params, DS Params, CF Params, IBSS Params, TIM */ 577 u8 variable[0]; 578 } __attribute__ ((packed)) beacon; 579 struct { 580 /* only variable items: SSID, Supported rates */ 581 u8 variable[0]; 582 } __attribute__ ((packed)) probe_req; 583 struct { 584 __le64 timestamp; 585 __le16 beacon_int; 586 __le16 capab_info; 587 /* followed by some of SSID, Supported rates, 588 * FH Params, DS Params, CF Params, IBSS Params */ 589 u8 variable[0]; 590 } __attribute__ ((packed)) probe_resp; 591 struct { 592 u8 category; 593 union { 594 struct { 595 u8 action_code; 596 u8 dialog_token; 597 u8 status_code; 598 u8 variable[0]; 599 } __attribute__ ((packed)) wme_action; 600 struct{ 601 u8 action_code; 602 u8 element_id; 603 u8 length; 604 struct ieee80211_channel_sw_ie sw_elem; 605 } __attribute__((packed)) chan_switch; 606 struct{ 607 u8 action_code; 608 u8 dialog_token; 609 u8 element_id; 610 u8 length; 611 struct ieee80211_msrment_ie msr_elem; 612 } __attribute__((packed)) measurement; 613 struct{ 614 u8 action_code; 615 u8 dialog_token; 616 __le16 capab; 617 __le16 timeout; 618 __le16 start_seq_num; 619 } __attribute__((packed)) addba_req; 620 struct{ 621 u8 action_code; 622 u8 dialog_token; 623 __le16 status; 624 __le16 capab; 625 __le16 timeout; 626 } __attribute__((packed)) addba_resp; 627 struct{ 628 u8 action_code; 629 __le16 params; 630 __le16 reason_code; 631 } __attribute__((packed)) delba; 632 struct{ 633 u8 action_code; 634 /* capab_info for open and confirm, 635 * reason for close 636 */ 637 __le16 aux; 638 /* Followed in plink_confirm by status 639 * code, AID and supported rates, 640 * and directly by supported rates in 641 * plink_open and plink_close 642 */ 643 u8 variable[0]; 644 } __attribute__((packed)) plink_action; 645 struct{ 646 u8 action_code; 647 u8 variable[0]; 648 } __attribute__((packed)) mesh_action; 649 } u; 650 } __attribute__ ((packed)) action; 651 } u; 652 } __attribute__ ((packed)); 653 654 /* mgmt header + 1 byte category code */ 655 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u) 656 657 658 /* Control frames */ 659 struct ieee80211_rts { 660 __le16 frame_control; 661 __le16 duration; 662 u8 ra[6]; 663 u8 ta[6]; 664 } __attribute__ ((packed)); 665 666 struct ieee80211_cts { 667 __le16 frame_control; 668 __le16 duration; 669 u8 ra[6]; 670 } __attribute__ ((packed)); 671 672 struct ieee80211_pspoll { 673 __le16 frame_control; 674 __le16 aid; 675 u8 bssid[6]; 676 u8 ta[6]; 677 } __attribute__ ((packed)); 678 679 /** 680 * struct ieee80211_bar - HT Block Ack Request 681 * 682 * This structure refers to "HT BlockAckReq" as 683 * described in 802.11n draft section 7.2.1.7.1 684 */ 685 struct ieee80211_bar { 686 __le16 frame_control; 687 __le16 duration; 688 __u8 ra[6]; 689 __u8 ta[6]; 690 __le16 control; 691 __le16 start_seq_num; 692 } __attribute__((packed)); 693 694 /* 802.11 BAR control masks */ 695 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000 696 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004 697 698 699 #define IEEE80211_HT_MCS_MASK_LEN 10 700 701 /** 702 * struct ieee80211_mcs_info - MCS information 703 * @rx_mask: RX mask 704 * @rx_highest: highest supported RX rate 705 * @tx_params: TX parameters 706 */ 707 struct ieee80211_mcs_info { 708 u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN]; 709 __le16 rx_highest; 710 u8 tx_params; 711 u8 reserved[3]; 712 } __attribute__((packed)); 713 714 /* 802.11n HT capability MSC set */ 715 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff 716 #define IEEE80211_HT_MCS_TX_DEFINED 0x01 717 #define IEEE80211_HT_MCS_TX_RX_DIFF 0x02 718 /* value 0 == 1 stream etc */ 719 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0C 720 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2 721 #define IEEE80211_HT_MCS_TX_MAX_STREAMS 4 722 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION 0x10 723 724 /* 725 * 802.11n D5.0 20.3.5 / 20.6 says: 726 * - indices 0 to 7 and 32 are single spatial stream 727 * - 8 to 31 are multiple spatial streams using equal modulation 728 * [8..15 for two streams, 16..23 for three and 24..31 for four] 729 * - remainder are multiple spatial streams using unequal modulation 730 */ 731 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33 732 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \ 733 (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8) 734 735 /** 736 * struct ieee80211_ht_cap - HT capabilities 737 * 738 * This structure is the "HT capabilities element" as 739 * described in 802.11n D5.0 7.3.2.57 740 */ 741 struct ieee80211_ht_cap { 742 __le16 cap_info; 743 u8 ampdu_params_info; 744 745 /* 16 bytes MCS information */ 746 struct ieee80211_mcs_info mcs; 747 748 __le16 extended_ht_cap_info; 749 __le32 tx_BF_cap_info; 750 u8 antenna_selection_info; 751 } __attribute__ ((packed)); 752 753 /* 802.11n HT capabilities masks (for cap_info) */ 754 #define IEEE80211_HT_CAP_LDPC_CODING 0x0001 755 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40 0x0002 756 #define IEEE80211_HT_CAP_SM_PS 0x000C 757 #define IEEE80211_HT_CAP_GRN_FLD 0x0010 758 #define IEEE80211_HT_CAP_SGI_20 0x0020 759 #define IEEE80211_HT_CAP_SGI_40 0x0040 760 #define IEEE80211_HT_CAP_TX_STBC 0x0080 761 #define IEEE80211_HT_CAP_RX_STBC 0x0300 762 #define IEEE80211_HT_CAP_DELAY_BA 0x0400 763 #define IEEE80211_HT_CAP_MAX_AMSDU 0x0800 764 #define IEEE80211_HT_CAP_DSSSCCK40 0x1000 765 #define IEEE80211_HT_CAP_PSMP_SUPPORT 0x2000 766 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT 0x4000 767 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT 0x8000 768 769 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */ 770 #define IEEE80211_HT_AMPDU_PARM_FACTOR 0x03 771 #define IEEE80211_HT_AMPDU_PARM_DENSITY 0x1C 772 773 /** 774 * struct ieee80211_ht_info - HT information 775 * 776 * This structure is the "HT information element" as 777 * described in 802.11n D5.0 7.3.2.58 778 */ 779 struct ieee80211_ht_info { 780 u8 control_chan; 781 u8 ht_param; 782 __le16 operation_mode; 783 __le16 stbc_param; 784 u8 basic_set[16]; 785 } __attribute__ ((packed)); 786 787 /* for ht_param */ 788 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET 0x03 789 #define IEEE80211_HT_PARAM_CHA_SEC_NONE 0x00 790 #define IEEE80211_HT_PARAM_CHA_SEC_ABOVE 0x01 791 #define IEEE80211_HT_PARAM_CHA_SEC_BELOW 0x03 792 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY 0x04 793 #define IEEE80211_HT_PARAM_RIFS_MODE 0x08 794 #define IEEE80211_HT_PARAM_SPSMP_SUPPORT 0x10 795 #define IEEE80211_HT_PARAM_SERV_INTERVAL_GRAN 0xE0 796 797 /* for operation_mode */ 798 #define IEEE80211_HT_OP_MODE_PROTECTION 0x0003 799 #define IEEE80211_HT_OP_MODE_PROTECTION_NONE 0 800 #define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER 1 801 #define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ 2 802 #define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED 3 803 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT 0x0004 804 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT 0x0010 805 806 /* for stbc_param */ 807 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON 0x0040 808 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080 809 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON 0x0100 810 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT 0x0200 811 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE 0x0400 812 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE 0x0800 813 814 815 /* block-ack parameters */ 816 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002 817 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C 818 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0 819 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000 820 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800 821 822 /* 823 * A-PMDU buffer sizes 824 * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2) 825 */ 826 #define IEEE80211_MIN_AMPDU_BUF 0x8 827 #define IEEE80211_MAX_AMPDU_BUF 0x40 828 829 830 /* Spatial Multiplexing Power Save Modes */ 831 #define WLAN_HT_CAP_SM_PS_STATIC 0 832 #define WLAN_HT_CAP_SM_PS_DYNAMIC 1 833 #define WLAN_HT_CAP_SM_PS_INVALID 2 834 #define WLAN_HT_CAP_SM_PS_DISABLED 3 835 836 /* Authentication algorithms */ 837 #define WLAN_AUTH_OPEN 0 838 #define WLAN_AUTH_SHARED_KEY 1 839 #define WLAN_AUTH_LEAP 128 840 841 #define WLAN_AUTH_CHALLENGE_LEN 128 842 843 #define WLAN_CAPABILITY_ESS (1<<0) 844 #define WLAN_CAPABILITY_IBSS (1<<1) 845 #define WLAN_CAPABILITY_CF_POLLABLE (1<<2) 846 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3) 847 #define WLAN_CAPABILITY_PRIVACY (1<<4) 848 #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5) 849 #define WLAN_CAPABILITY_PBCC (1<<6) 850 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7) 851 852 /* 802.11h */ 853 #define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8) 854 #define WLAN_CAPABILITY_QOS (1<<9) 855 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10) 856 #define WLAN_CAPABILITY_DSSS_OFDM (1<<13) 857 /* measurement */ 858 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE (1<<0) 859 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE (1<<1) 860 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED (1<<2) 861 862 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC 0 863 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA 1 864 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI 2 865 866 867 /* 802.11g ERP information element */ 868 #define WLAN_ERP_NON_ERP_PRESENT (1<<0) 869 #define WLAN_ERP_USE_PROTECTION (1<<1) 870 #define WLAN_ERP_BARKER_PREAMBLE (1<<2) 871 872 /* WLAN_ERP_BARKER_PREAMBLE values */ 873 enum { 874 WLAN_ERP_PREAMBLE_SHORT = 0, 875 WLAN_ERP_PREAMBLE_LONG = 1, 876 }; 877 878 /* Status codes */ 879 enum ieee80211_statuscode { 880 WLAN_STATUS_SUCCESS = 0, 881 WLAN_STATUS_UNSPECIFIED_FAILURE = 1, 882 WLAN_STATUS_CAPS_UNSUPPORTED = 10, 883 WLAN_STATUS_REASSOC_NO_ASSOC = 11, 884 WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12, 885 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13, 886 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14, 887 WLAN_STATUS_CHALLENGE_FAIL = 15, 888 WLAN_STATUS_AUTH_TIMEOUT = 16, 889 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17, 890 WLAN_STATUS_ASSOC_DENIED_RATES = 18, 891 /* 802.11b */ 892 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19, 893 WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20, 894 WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21, 895 /* 802.11h */ 896 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22, 897 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23, 898 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24, 899 /* 802.11g */ 900 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25, 901 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26, 902 /* 802.11i */ 903 WLAN_STATUS_INVALID_IE = 40, 904 WLAN_STATUS_INVALID_GROUP_CIPHER = 41, 905 WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42, 906 WLAN_STATUS_INVALID_AKMP = 43, 907 WLAN_STATUS_UNSUPP_RSN_VERSION = 44, 908 WLAN_STATUS_INVALID_RSN_IE_CAP = 45, 909 WLAN_STATUS_CIPHER_SUITE_REJECTED = 46, 910 /* 802.11e */ 911 WLAN_STATUS_UNSPECIFIED_QOS = 32, 912 WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33, 913 WLAN_STATUS_ASSOC_DENIED_LOWACK = 34, 914 WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35, 915 WLAN_STATUS_REQUEST_DECLINED = 37, 916 WLAN_STATUS_INVALID_QOS_PARAM = 38, 917 WLAN_STATUS_CHANGE_TSPEC = 39, 918 WLAN_STATUS_WAIT_TS_DELAY = 47, 919 WLAN_STATUS_NO_DIRECT_LINK = 48, 920 WLAN_STATUS_STA_NOT_PRESENT = 49, 921 WLAN_STATUS_STA_NOT_QSTA = 50, 922 }; 923 924 925 /* Reason codes */ 926 enum ieee80211_reasoncode { 927 WLAN_REASON_UNSPECIFIED = 1, 928 WLAN_REASON_PREV_AUTH_NOT_VALID = 2, 929 WLAN_REASON_DEAUTH_LEAVING = 3, 930 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4, 931 WLAN_REASON_DISASSOC_AP_BUSY = 5, 932 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6, 933 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7, 934 WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8, 935 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9, 936 /* 802.11h */ 937 WLAN_REASON_DISASSOC_BAD_POWER = 10, 938 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11, 939 /* 802.11i */ 940 WLAN_REASON_INVALID_IE = 13, 941 WLAN_REASON_MIC_FAILURE = 14, 942 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15, 943 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16, 944 WLAN_REASON_IE_DIFFERENT = 17, 945 WLAN_REASON_INVALID_GROUP_CIPHER = 18, 946 WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19, 947 WLAN_REASON_INVALID_AKMP = 20, 948 WLAN_REASON_UNSUPP_RSN_VERSION = 21, 949 WLAN_REASON_INVALID_RSN_IE_CAP = 22, 950 WLAN_REASON_IEEE8021X_FAILED = 23, 951 WLAN_REASON_CIPHER_SUITE_REJECTED = 24, 952 /* 802.11e */ 953 WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32, 954 WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33, 955 WLAN_REASON_DISASSOC_LOW_ACK = 34, 956 WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35, 957 WLAN_REASON_QSTA_LEAVE_QBSS = 36, 958 WLAN_REASON_QSTA_NOT_USE = 37, 959 WLAN_REASON_QSTA_REQUIRE_SETUP = 38, 960 WLAN_REASON_QSTA_TIMEOUT = 39, 961 WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45, 962 }; 963 964 965 /* Information Element IDs */ 966 enum ieee80211_eid { 967 WLAN_EID_SSID = 0, 968 WLAN_EID_SUPP_RATES = 1, 969 WLAN_EID_FH_PARAMS = 2, 970 WLAN_EID_DS_PARAMS = 3, 971 WLAN_EID_CF_PARAMS = 4, 972 WLAN_EID_TIM = 5, 973 WLAN_EID_IBSS_PARAMS = 6, 974 WLAN_EID_CHALLENGE = 16, 975 /* 802.11d */ 976 WLAN_EID_COUNTRY = 7, 977 WLAN_EID_HP_PARAMS = 8, 978 WLAN_EID_HP_TABLE = 9, 979 WLAN_EID_REQUEST = 10, 980 /* 802.11e */ 981 WLAN_EID_QBSS_LOAD = 11, 982 WLAN_EID_EDCA_PARAM_SET = 12, 983 WLAN_EID_TSPEC = 13, 984 WLAN_EID_TCLAS = 14, 985 WLAN_EID_SCHEDULE = 15, 986 WLAN_EID_TS_DELAY = 43, 987 WLAN_EID_TCLAS_PROCESSING = 44, 988 WLAN_EID_QOS_CAPA = 46, 989 /* 802.11s 990 * 991 * All mesh EID numbers are pending IEEE 802.11 ANA approval. 992 * The numbers have been incremented from those suggested in 993 * 802.11s/D2.0 so that MESH_CONFIG does not conflict with 994 * EXT_SUPP_RATES. 995 */ 996 WLAN_EID_MESH_CONFIG = 51, 997 WLAN_EID_MESH_ID = 52, 998 WLAN_EID_PEER_LINK = 55, 999 WLAN_EID_PREQ = 68, 1000 WLAN_EID_PREP = 69, 1001 WLAN_EID_PERR = 70, 1002 /* 802.11h */ 1003 WLAN_EID_PWR_CONSTRAINT = 32, 1004 WLAN_EID_PWR_CAPABILITY = 33, 1005 WLAN_EID_TPC_REQUEST = 34, 1006 WLAN_EID_TPC_REPORT = 35, 1007 WLAN_EID_SUPPORTED_CHANNELS = 36, 1008 WLAN_EID_CHANNEL_SWITCH = 37, 1009 WLAN_EID_MEASURE_REQUEST = 38, 1010 WLAN_EID_MEASURE_REPORT = 39, 1011 WLAN_EID_QUIET = 40, 1012 WLAN_EID_IBSS_DFS = 41, 1013 /* 802.11g */ 1014 WLAN_EID_ERP_INFO = 42, 1015 WLAN_EID_EXT_SUPP_RATES = 50, 1016 /* 802.11n */ 1017 WLAN_EID_HT_CAPABILITY = 45, 1018 WLAN_EID_HT_INFORMATION = 61, 1019 /* 802.11i */ 1020 WLAN_EID_RSN = 48, 1021 WLAN_EID_WPA = 221, 1022 WLAN_EID_GENERIC = 221, 1023 WLAN_EID_VENDOR_SPECIFIC = 221, 1024 WLAN_EID_QOS_PARAMETER = 222 1025 }; 1026 1027 /* Action category code */ 1028 enum ieee80211_category { 1029 WLAN_CATEGORY_SPECTRUM_MGMT = 0, 1030 WLAN_CATEGORY_QOS = 1, 1031 WLAN_CATEGORY_DLS = 2, 1032 WLAN_CATEGORY_BACK = 3, 1033 WLAN_CATEGORY_WMM = 17, 1034 }; 1035 1036 /* SPECTRUM_MGMT action code */ 1037 enum ieee80211_spectrum_mgmt_actioncode { 1038 WLAN_ACTION_SPCT_MSR_REQ = 0, 1039 WLAN_ACTION_SPCT_MSR_RPRT = 1, 1040 WLAN_ACTION_SPCT_TPC_REQ = 2, 1041 WLAN_ACTION_SPCT_TPC_RPRT = 3, 1042 WLAN_ACTION_SPCT_CHL_SWITCH = 4, 1043 }; 1044 1045 /* 1046 * IEEE 802.11-2007 7.3.2.9 Country information element 1047 * 1048 * Minimum length is 8 octets, ie len must be evenly 1049 * divisible by 2 1050 */ 1051 1052 /* Although the spec says 8 I'm seeing 6 in practice */ 1053 #define IEEE80211_COUNTRY_IE_MIN_LEN 6 1054 1055 /* 1056 * For regulatory extension stuff see IEEE 802.11-2007 1057 * Annex I (page 1141) and Annex J (page 1147). Also 1058 * review 7.3.2.9. 1059 * 1060 * When dot11RegulatoryClassesRequired is true and the 1061 * first_channel/reg_extension_id is >= 201 then the IE 1062 * compromises of the 'ext' struct represented below: 1063 * 1064 * - Regulatory extension ID - when generating IE this just needs 1065 * to be monotonically increasing for each triplet passed in 1066 * the IE 1067 * - Regulatory class - index into set of rules 1068 * - Coverage class - index into air propagation time (Table 7-27), 1069 * in microseconds, you can compute the air propagation time from 1070 * the index by multiplying by 3, so index 10 yields a propagation 1071 * of 10 us. Valid values are 0-31, values 32-255 are not defined 1072 * yet. A value of 0 inicates air propagation of <= 1 us. 1073 * 1074 * See also Table I.2 for Emission limit sets and table 1075 * I.3 for Behavior limit sets. Table J.1 indicates how to map 1076 * a reg_class to an emission limit set and behavior limit set. 1077 */ 1078 #define IEEE80211_COUNTRY_EXTENSION_ID 201 1079 1080 /* 1081 * Channels numbers in the IE must be monotonically increasing 1082 * if dot11RegulatoryClassesRequired is not true. 1083 * 1084 * If dot11RegulatoryClassesRequired is true consecutive 1085 * subband triplets following a regulatory triplet shall 1086 * have monotonically increasing first_channel number fields. 1087 * 1088 * Channel numbers shall not overlap. 1089 * 1090 * Note that max_power is signed. 1091 */ 1092 struct ieee80211_country_ie_triplet { 1093 union { 1094 struct { 1095 u8 first_channel; 1096 u8 num_channels; 1097 s8 max_power; 1098 } __attribute__ ((packed)) chans; 1099 struct { 1100 u8 reg_extension_id; 1101 u8 reg_class; 1102 u8 coverage_class; 1103 } __attribute__ ((packed)) ext; 1104 }; 1105 } __attribute__ ((packed)); 1106 1107 /* BACK action code */ 1108 enum ieee80211_back_actioncode { 1109 WLAN_ACTION_ADDBA_REQ = 0, 1110 WLAN_ACTION_ADDBA_RESP = 1, 1111 WLAN_ACTION_DELBA = 2, 1112 }; 1113 1114 /* BACK (block-ack) parties */ 1115 enum ieee80211_back_parties { 1116 WLAN_BACK_RECIPIENT = 0, 1117 WLAN_BACK_INITIATOR = 1, 1118 WLAN_BACK_TIMER = 2, 1119 }; 1120 1121 /* A-MSDU 802.11n */ 1122 #define IEEE80211_QOS_CONTROL_A_MSDU_PRESENT 0x0080 1123 1124 /* cipher suite selectors */ 1125 #define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00 1126 #define WLAN_CIPHER_SUITE_WEP40 0x000FAC01 1127 #define WLAN_CIPHER_SUITE_TKIP 0x000FAC02 1128 /* reserved: 0x000FAC03 */ 1129 #define WLAN_CIPHER_SUITE_CCMP 0x000FAC04 1130 #define WLAN_CIPHER_SUITE_WEP104 0x000FAC05 1131 1132 #define WLAN_MAX_KEY_LEN 32 1133 1134 /** 1135 * ieee80211_get_qos_ctl - get pointer to qos control bytes 1136 * @hdr: the frame 1137 * 1138 * The qos ctrl bytes come after the frame_control, duration, seq_num 1139 * and 3 or 4 addresses of length ETH_ALEN. 1140 * 3 addr: 2 + 2 + 2 + 3*6 = 24 1141 * 4 addr: 2 + 2 + 2 + 4*6 = 30 1142 */ 1143 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr) 1144 { 1145 if (ieee80211_has_a4(hdr->frame_control)) 1146 return (u8 *)hdr + 30; 1147 else 1148 return (u8 *)hdr + 24; 1149 } 1150 1151 /** 1152 * ieee80211_get_SA - get pointer to SA 1153 * @hdr: the frame 1154 * 1155 * Given an 802.11 frame, this function returns the offset 1156 * to the source address (SA). It does not verify that the 1157 * header is long enough to contain the address, and the 1158 * header must be long enough to contain the frame control 1159 * field. 1160 */ 1161 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr) 1162 { 1163 if (ieee80211_has_a4(hdr->frame_control)) 1164 return hdr->addr4; 1165 if (ieee80211_has_fromds(hdr->frame_control)) 1166 return hdr->addr3; 1167 return hdr->addr2; 1168 } 1169 1170 /** 1171 * ieee80211_get_DA - get pointer to DA 1172 * @hdr: the frame 1173 * 1174 * Given an 802.11 frame, this function returns the offset 1175 * to the destination address (DA). It does not verify that 1176 * the header is long enough to contain the address, and the 1177 * header must be long enough to contain the frame control 1178 * field. 1179 */ 1180 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr) 1181 { 1182 if (ieee80211_has_tods(hdr->frame_control)) 1183 return hdr->addr3; 1184 else 1185 return hdr->addr1; 1186 } 1187 1188 #endif /* LINUX_IEEE80211_H */ 1189