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 #define IEEE80211_MESH_CONFIG_LEN 19 119 120 #define IEEE80211_QOS_CTL_LEN 2 121 #define IEEE80211_QOS_CTL_TID_MASK 0x000F 122 #define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007 123 124 struct ieee80211_hdr { 125 __le16 frame_control; 126 __le16 duration_id; 127 u8 addr1[6]; 128 u8 addr2[6]; 129 u8 addr3[6]; 130 __le16 seq_ctrl; 131 u8 addr4[6]; 132 } __attribute__ ((packed)); 133 134 /** 135 * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set 136 * @fc: frame control bytes in little-endian byteorder 137 */ 138 static inline int ieee80211_has_tods(__le16 fc) 139 { 140 return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0; 141 } 142 143 /** 144 * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set 145 * @fc: frame control bytes in little-endian byteorder 146 */ 147 static inline int ieee80211_has_fromds(__le16 fc) 148 { 149 return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0; 150 } 151 152 /** 153 * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set 154 * @fc: frame control bytes in little-endian byteorder 155 */ 156 static inline int ieee80211_has_a4(__le16 fc) 157 { 158 __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS); 159 return (fc & tmp) == tmp; 160 } 161 162 /** 163 * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set 164 * @fc: frame control bytes in little-endian byteorder 165 */ 166 static inline int ieee80211_has_morefrags(__le16 fc) 167 { 168 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0; 169 } 170 171 /** 172 * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set 173 * @fc: frame control bytes in little-endian byteorder 174 */ 175 static inline int ieee80211_has_retry(__le16 fc) 176 { 177 return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0; 178 } 179 180 /** 181 * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set 182 * @fc: frame control bytes in little-endian byteorder 183 */ 184 static inline int ieee80211_has_pm(__le16 fc) 185 { 186 return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0; 187 } 188 189 /** 190 * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set 191 * @fc: frame control bytes in little-endian byteorder 192 */ 193 static inline int ieee80211_has_moredata(__le16 fc) 194 { 195 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0; 196 } 197 198 /** 199 * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set 200 * @fc: frame control bytes in little-endian byteorder 201 */ 202 static inline int ieee80211_has_protected(__le16 fc) 203 { 204 return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0; 205 } 206 207 /** 208 * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set 209 * @fc: frame control bytes in little-endian byteorder 210 */ 211 static inline int ieee80211_has_order(__le16 fc) 212 { 213 return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0; 214 } 215 216 /** 217 * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT 218 * @fc: frame control bytes in little-endian byteorder 219 */ 220 static inline int ieee80211_is_mgmt(__le16 fc) 221 { 222 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) == 223 cpu_to_le16(IEEE80211_FTYPE_MGMT); 224 } 225 226 /** 227 * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL 228 * @fc: frame control bytes in little-endian byteorder 229 */ 230 static inline int ieee80211_is_ctl(__le16 fc) 231 { 232 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) == 233 cpu_to_le16(IEEE80211_FTYPE_CTL); 234 } 235 236 /** 237 * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA 238 * @fc: frame control bytes in little-endian byteorder 239 */ 240 static inline int ieee80211_is_data(__le16 fc) 241 { 242 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) == 243 cpu_to_le16(IEEE80211_FTYPE_DATA); 244 } 245 246 /** 247 * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set 248 * @fc: frame control bytes in little-endian byteorder 249 */ 250 static inline int ieee80211_is_data_qos(__le16 fc) 251 { 252 /* 253 * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need 254 * to check the one bit 255 */ 256 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) == 257 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA); 258 } 259 260 /** 261 * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data 262 * @fc: frame control bytes in little-endian byteorder 263 */ 264 static inline int ieee80211_is_data_present(__le16 fc) 265 { 266 /* 267 * mask with 0x40 and test that that bit is clear to only return true 268 * for the data-containing substypes. 269 */ 270 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) == 271 cpu_to_le16(IEEE80211_FTYPE_DATA); 272 } 273 274 /** 275 * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ 276 * @fc: frame control bytes in little-endian byteorder 277 */ 278 static inline int ieee80211_is_assoc_req(__le16 fc) 279 { 280 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 281 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ); 282 } 283 284 /** 285 * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP 286 * @fc: frame control bytes in little-endian byteorder 287 */ 288 static inline int ieee80211_is_assoc_resp(__le16 fc) 289 { 290 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 291 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP); 292 } 293 294 /** 295 * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ 296 * @fc: frame control bytes in little-endian byteorder 297 */ 298 static inline int ieee80211_is_reassoc_req(__le16 fc) 299 { 300 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 301 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ); 302 } 303 304 /** 305 * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP 306 * @fc: frame control bytes in little-endian byteorder 307 */ 308 static inline int ieee80211_is_reassoc_resp(__le16 fc) 309 { 310 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 311 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP); 312 } 313 314 /** 315 * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ 316 * @fc: frame control bytes in little-endian byteorder 317 */ 318 static inline int ieee80211_is_probe_req(__le16 fc) 319 { 320 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 321 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ); 322 } 323 324 /** 325 * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP 326 * @fc: frame control bytes in little-endian byteorder 327 */ 328 static inline int ieee80211_is_probe_resp(__le16 fc) 329 { 330 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 331 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP); 332 } 333 334 /** 335 * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON 336 * @fc: frame control bytes in little-endian byteorder 337 */ 338 static inline int ieee80211_is_beacon(__le16 fc) 339 { 340 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 341 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON); 342 } 343 344 /** 345 * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM 346 * @fc: frame control bytes in little-endian byteorder 347 */ 348 static inline int ieee80211_is_atim(__le16 fc) 349 { 350 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 351 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM); 352 } 353 354 /** 355 * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC 356 * @fc: frame control bytes in little-endian byteorder 357 */ 358 static inline int ieee80211_is_disassoc(__le16 fc) 359 { 360 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 361 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC); 362 } 363 364 /** 365 * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH 366 * @fc: frame control bytes in little-endian byteorder 367 */ 368 static inline int ieee80211_is_auth(__le16 fc) 369 { 370 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 371 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH); 372 } 373 374 /** 375 * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH 376 * @fc: frame control bytes in little-endian byteorder 377 */ 378 static inline int ieee80211_is_deauth(__le16 fc) 379 { 380 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 381 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH); 382 } 383 384 /** 385 * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION 386 * @fc: frame control bytes in little-endian byteorder 387 */ 388 static inline int ieee80211_is_action(__le16 fc) 389 { 390 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 391 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION); 392 } 393 394 /** 395 * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ 396 * @fc: frame control bytes in little-endian byteorder 397 */ 398 static inline int ieee80211_is_back_req(__le16 fc) 399 { 400 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 401 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ); 402 } 403 404 /** 405 * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK 406 * @fc: frame control bytes in little-endian byteorder 407 */ 408 static inline int ieee80211_is_back(__le16 fc) 409 { 410 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 411 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK); 412 } 413 414 /** 415 * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL 416 * @fc: frame control bytes in little-endian byteorder 417 */ 418 static inline int ieee80211_is_pspoll(__le16 fc) 419 { 420 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 421 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL); 422 } 423 424 /** 425 * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS 426 * @fc: frame control bytes in little-endian byteorder 427 */ 428 static inline int ieee80211_is_rts(__le16 fc) 429 { 430 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 431 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS); 432 } 433 434 /** 435 * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS 436 * @fc: frame control bytes in little-endian byteorder 437 */ 438 static inline int ieee80211_is_cts(__le16 fc) 439 { 440 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 441 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS); 442 } 443 444 /** 445 * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK 446 * @fc: frame control bytes in little-endian byteorder 447 */ 448 static inline int ieee80211_is_ack(__le16 fc) 449 { 450 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 451 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK); 452 } 453 454 /** 455 * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND 456 * @fc: frame control bytes in little-endian byteorder 457 */ 458 static inline int ieee80211_is_cfend(__le16 fc) 459 { 460 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 461 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND); 462 } 463 464 /** 465 * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK 466 * @fc: frame control bytes in little-endian byteorder 467 */ 468 static inline int ieee80211_is_cfendack(__le16 fc) 469 { 470 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 471 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK); 472 } 473 474 /** 475 * ieee80211_is_nullfunc - check if FTYPE=IEEE80211_FTYPE_DATA and STYPE=IEEE80211_STYPE_NULLFUNC 476 * @fc: frame control bytes in little-endian byteorder 477 */ 478 static inline int ieee80211_is_nullfunc(__le16 fc) 479 { 480 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) == 481 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC); 482 } 483 484 struct ieee80211s_hdr { 485 u8 flags; 486 u8 ttl; 487 __le32 seqnum; 488 u8 eaddr1[6]; 489 u8 eaddr2[6]; 490 u8 eaddr3[6]; 491 } __attribute__ ((packed)); 492 493 /* Mesh flags */ 494 #define MESH_FLAGS_AE_A4 0x1 495 #define MESH_FLAGS_AE_A5_A6 0x2 496 #define MESH_FLAGS_PS_DEEP 0x4 497 498 /** 499 * struct ieee80211_quiet_ie 500 * 501 * This structure refers to "Quiet information element" 502 */ 503 struct ieee80211_quiet_ie { 504 u8 count; 505 u8 period; 506 __le16 duration; 507 __le16 offset; 508 } __attribute__ ((packed)); 509 510 /** 511 * struct ieee80211_msrment_ie 512 * 513 * This structure refers to "Measurement Request/Report information element" 514 */ 515 struct ieee80211_msrment_ie { 516 u8 token; 517 u8 mode; 518 u8 type; 519 u8 request[0]; 520 } __attribute__ ((packed)); 521 522 /** 523 * struct ieee80211_channel_sw_ie 524 * 525 * This structure refers to "Channel Switch Announcement information element" 526 */ 527 struct ieee80211_channel_sw_ie { 528 u8 mode; 529 u8 new_ch_num; 530 u8 count; 531 } __attribute__ ((packed)); 532 533 /** 534 * struct ieee80211_tim 535 * 536 * This structure refers to "Traffic Indication Map information element" 537 */ 538 struct ieee80211_tim_ie { 539 u8 dtim_count; 540 u8 dtim_period; 541 u8 bitmap_ctrl; 542 /* variable size: 1 - 251 bytes */ 543 u8 virtual_map[0]; 544 } __attribute__ ((packed)); 545 546 #define WLAN_SA_QUERY_TR_ID_LEN 16 547 548 struct ieee80211_mgmt { 549 __le16 frame_control; 550 __le16 duration; 551 u8 da[6]; 552 u8 sa[6]; 553 u8 bssid[6]; 554 __le16 seq_ctrl; 555 union { 556 struct { 557 __le16 auth_alg; 558 __le16 auth_transaction; 559 __le16 status_code; 560 /* possibly followed by Challenge text */ 561 u8 variable[0]; 562 } __attribute__ ((packed)) auth; 563 struct { 564 __le16 reason_code; 565 } __attribute__ ((packed)) deauth; 566 struct { 567 __le16 capab_info; 568 __le16 listen_interval; 569 /* followed by SSID and Supported rates */ 570 u8 variable[0]; 571 } __attribute__ ((packed)) assoc_req; 572 struct { 573 __le16 capab_info; 574 __le16 status_code; 575 __le16 aid; 576 /* followed by Supported rates */ 577 u8 variable[0]; 578 } __attribute__ ((packed)) assoc_resp, reassoc_resp; 579 struct { 580 __le16 capab_info; 581 __le16 listen_interval; 582 u8 current_ap[6]; 583 /* followed by SSID and Supported rates */ 584 u8 variable[0]; 585 } __attribute__ ((packed)) reassoc_req; 586 struct { 587 __le16 reason_code; 588 } __attribute__ ((packed)) disassoc; 589 struct { 590 __le64 timestamp; 591 __le16 beacon_int; 592 __le16 capab_info; 593 /* followed by some of SSID, Supported rates, 594 * FH Params, DS Params, CF Params, IBSS Params, TIM */ 595 u8 variable[0]; 596 } __attribute__ ((packed)) beacon; 597 struct { 598 /* only variable items: SSID, Supported rates */ 599 u8 variable[0]; 600 } __attribute__ ((packed)) probe_req; 601 struct { 602 __le64 timestamp; 603 __le16 beacon_int; 604 __le16 capab_info; 605 /* followed by some of SSID, Supported rates, 606 * FH Params, DS Params, CF Params, IBSS Params */ 607 u8 variable[0]; 608 } __attribute__ ((packed)) probe_resp; 609 struct { 610 u8 category; 611 union { 612 struct { 613 u8 action_code; 614 u8 dialog_token; 615 u8 status_code; 616 u8 variable[0]; 617 } __attribute__ ((packed)) wme_action; 618 struct{ 619 u8 action_code; 620 u8 element_id; 621 u8 length; 622 struct ieee80211_channel_sw_ie sw_elem; 623 } __attribute__((packed)) chan_switch; 624 struct{ 625 u8 action_code; 626 u8 dialog_token; 627 u8 element_id; 628 u8 length; 629 struct ieee80211_msrment_ie msr_elem; 630 } __attribute__((packed)) measurement; 631 struct{ 632 u8 action_code; 633 u8 dialog_token; 634 __le16 capab; 635 __le16 timeout; 636 __le16 start_seq_num; 637 } __attribute__((packed)) addba_req; 638 struct{ 639 u8 action_code; 640 u8 dialog_token; 641 __le16 status; 642 __le16 capab; 643 __le16 timeout; 644 } __attribute__((packed)) addba_resp; 645 struct{ 646 u8 action_code; 647 __le16 params; 648 __le16 reason_code; 649 } __attribute__((packed)) delba; 650 struct{ 651 u8 action_code; 652 /* capab_info for open and confirm, 653 * reason for close 654 */ 655 __le16 aux; 656 /* Followed in plink_confirm by status 657 * code, AID and supported rates, 658 * and directly by supported rates in 659 * plink_open and plink_close 660 */ 661 u8 variable[0]; 662 } __attribute__((packed)) plink_action; 663 struct{ 664 u8 action_code; 665 u8 variable[0]; 666 } __attribute__((packed)) mesh_action; 667 struct { 668 u8 action; 669 u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN]; 670 } __attribute__ ((packed)) sa_query; 671 } u; 672 } __attribute__ ((packed)) action; 673 } u; 674 } __attribute__ ((packed)); 675 676 /* mgmt header + 1 byte category code */ 677 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u) 678 679 680 /* Management MIC information element (IEEE 802.11w) */ 681 struct ieee80211_mmie { 682 u8 element_id; 683 u8 length; 684 __le16 key_id; 685 u8 sequence_number[6]; 686 u8 mic[8]; 687 } __attribute__ ((packed)); 688 689 /* Control frames */ 690 struct ieee80211_rts { 691 __le16 frame_control; 692 __le16 duration; 693 u8 ra[6]; 694 u8 ta[6]; 695 } __attribute__ ((packed)); 696 697 struct ieee80211_cts { 698 __le16 frame_control; 699 __le16 duration; 700 u8 ra[6]; 701 } __attribute__ ((packed)); 702 703 struct ieee80211_pspoll { 704 __le16 frame_control; 705 __le16 aid; 706 u8 bssid[6]; 707 u8 ta[6]; 708 } __attribute__ ((packed)); 709 710 /** 711 * struct ieee80211_bar - HT Block Ack Request 712 * 713 * This structure refers to "HT BlockAckReq" as 714 * described in 802.11n draft section 7.2.1.7.1 715 */ 716 struct ieee80211_bar { 717 __le16 frame_control; 718 __le16 duration; 719 __u8 ra[6]; 720 __u8 ta[6]; 721 __le16 control; 722 __le16 start_seq_num; 723 } __attribute__((packed)); 724 725 /* 802.11 BAR control masks */ 726 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000 727 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004 728 729 730 #define IEEE80211_HT_MCS_MASK_LEN 10 731 732 /** 733 * struct ieee80211_mcs_info - MCS information 734 * @rx_mask: RX mask 735 * @rx_highest: highest supported RX rate 736 * @tx_params: TX parameters 737 */ 738 struct ieee80211_mcs_info { 739 u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN]; 740 __le16 rx_highest; 741 u8 tx_params; 742 u8 reserved[3]; 743 } __attribute__((packed)); 744 745 /* 802.11n HT capability MSC set */ 746 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff 747 #define IEEE80211_HT_MCS_TX_DEFINED 0x01 748 #define IEEE80211_HT_MCS_TX_RX_DIFF 0x02 749 /* value 0 == 1 stream etc */ 750 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0C 751 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2 752 #define IEEE80211_HT_MCS_TX_MAX_STREAMS 4 753 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION 0x10 754 755 /* 756 * 802.11n D5.0 20.3.5 / 20.6 says: 757 * - indices 0 to 7 and 32 are single spatial stream 758 * - 8 to 31 are multiple spatial streams using equal modulation 759 * [8..15 for two streams, 16..23 for three and 24..31 for four] 760 * - remainder are multiple spatial streams using unequal modulation 761 */ 762 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33 763 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \ 764 (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8) 765 766 /** 767 * struct ieee80211_ht_cap - HT capabilities 768 * 769 * This structure is the "HT capabilities element" as 770 * described in 802.11n D5.0 7.3.2.57 771 */ 772 struct ieee80211_ht_cap { 773 __le16 cap_info; 774 u8 ampdu_params_info; 775 776 /* 16 bytes MCS information */ 777 struct ieee80211_mcs_info mcs; 778 779 __le16 extended_ht_cap_info; 780 __le32 tx_BF_cap_info; 781 u8 antenna_selection_info; 782 } __attribute__ ((packed)); 783 784 /* 802.11n HT capabilities masks (for cap_info) */ 785 #define IEEE80211_HT_CAP_LDPC_CODING 0x0001 786 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40 0x0002 787 #define IEEE80211_HT_CAP_SM_PS 0x000C 788 #define IEEE80211_HT_CAP_GRN_FLD 0x0010 789 #define IEEE80211_HT_CAP_SGI_20 0x0020 790 #define IEEE80211_HT_CAP_SGI_40 0x0040 791 #define IEEE80211_HT_CAP_TX_STBC 0x0080 792 #define IEEE80211_HT_CAP_RX_STBC 0x0300 793 #define IEEE80211_HT_CAP_DELAY_BA 0x0400 794 #define IEEE80211_HT_CAP_MAX_AMSDU 0x0800 795 #define IEEE80211_HT_CAP_DSSSCCK40 0x1000 796 #define IEEE80211_HT_CAP_PSMP_SUPPORT 0x2000 797 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT 0x4000 798 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT 0x8000 799 800 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */ 801 #define IEEE80211_HT_AMPDU_PARM_FACTOR 0x03 802 #define IEEE80211_HT_AMPDU_PARM_DENSITY 0x1C 803 804 /** 805 * struct ieee80211_ht_info - HT information 806 * 807 * This structure is the "HT information element" as 808 * described in 802.11n D5.0 7.3.2.58 809 */ 810 struct ieee80211_ht_info { 811 u8 control_chan; 812 u8 ht_param; 813 __le16 operation_mode; 814 __le16 stbc_param; 815 u8 basic_set[16]; 816 } __attribute__ ((packed)); 817 818 /* for ht_param */ 819 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET 0x03 820 #define IEEE80211_HT_PARAM_CHA_SEC_NONE 0x00 821 #define IEEE80211_HT_PARAM_CHA_SEC_ABOVE 0x01 822 #define IEEE80211_HT_PARAM_CHA_SEC_BELOW 0x03 823 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY 0x04 824 #define IEEE80211_HT_PARAM_RIFS_MODE 0x08 825 #define IEEE80211_HT_PARAM_SPSMP_SUPPORT 0x10 826 #define IEEE80211_HT_PARAM_SERV_INTERVAL_GRAN 0xE0 827 828 /* for operation_mode */ 829 #define IEEE80211_HT_OP_MODE_PROTECTION 0x0003 830 #define IEEE80211_HT_OP_MODE_PROTECTION_NONE 0 831 #define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER 1 832 #define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ 2 833 #define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED 3 834 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT 0x0004 835 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT 0x0010 836 837 /* for stbc_param */ 838 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON 0x0040 839 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080 840 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON 0x0100 841 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT 0x0200 842 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE 0x0400 843 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE 0x0800 844 845 846 /* block-ack parameters */ 847 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002 848 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C 849 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0 850 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000 851 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800 852 853 /* 854 * A-PMDU buffer sizes 855 * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2) 856 */ 857 #define IEEE80211_MIN_AMPDU_BUF 0x8 858 #define IEEE80211_MAX_AMPDU_BUF 0x40 859 860 861 /* Spatial Multiplexing Power Save Modes */ 862 #define WLAN_HT_CAP_SM_PS_STATIC 0 863 #define WLAN_HT_CAP_SM_PS_DYNAMIC 1 864 #define WLAN_HT_CAP_SM_PS_INVALID 2 865 #define WLAN_HT_CAP_SM_PS_DISABLED 3 866 867 /* Authentication algorithms */ 868 #define WLAN_AUTH_OPEN 0 869 #define WLAN_AUTH_SHARED_KEY 1 870 #define WLAN_AUTH_FT 2 871 #define WLAN_AUTH_LEAP 128 872 873 #define WLAN_AUTH_CHALLENGE_LEN 128 874 875 #define WLAN_CAPABILITY_ESS (1<<0) 876 #define WLAN_CAPABILITY_IBSS (1<<1) 877 #define WLAN_CAPABILITY_CF_POLLABLE (1<<2) 878 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3) 879 #define WLAN_CAPABILITY_PRIVACY (1<<4) 880 #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5) 881 #define WLAN_CAPABILITY_PBCC (1<<6) 882 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7) 883 884 /* 802.11h */ 885 #define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8) 886 #define WLAN_CAPABILITY_QOS (1<<9) 887 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10) 888 #define WLAN_CAPABILITY_DSSS_OFDM (1<<13) 889 /* measurement */ 890 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE (1<<0) 891 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE (1<<1) 892 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED (1<<2) 893 894 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC 0 895 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA 1 896 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI 2 897 898 899 /* 802.11g ERP information element */ 900 #define WLAN_ERP_NON_ERP_PRESENT (1<<0) 901 #define WLAN_ERP_USE_PROTECTION (1<<1) 902 #define WLAN_ERP_BARKER_PREAMBLE (1<<2) 903 904 /* WLAN_ERP_BARKER_PREAMBLE values */ 905 enum { 906 WLAN_ERP_PREAMBLE_SHORT = 0, 907 WLAN_ERP_PREAMBLE_LONG = 1, 908 }; 909 910 /* Status codes */ 911 enum ieee80211_statuscode { 912 WLAN_STATUS_SUCCESS = 0, 913 WLAN_STATUS_UNSPECIFIED_FAILURE = 1, 914 WLAN_STATUS_CAPS_UNSUPPORTED = 10, 915 WLAN_STATUS_REASSOC_NO_ASSOC = 11, 916 WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12, 917 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13, 918 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14, 919 WLAN_STATUS_CHALLENGE_FAIL = 15, 920 WLAN_STATUS_AUTH_TIMEOUT = 16, 921 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17, 922 WLAN_STATUS_ASSOC_DENIED_RATES = 18, 923 /* 802.11b */ 924 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19, 925 WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20, 926 WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21, 927 /* 802.11h */ 928 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22, 929 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23, 930 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24, 931 /* 802.11g */ 932 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25, 933 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26, 934 /* 802.11w */ 935 WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30, 936 WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31, 937 /* 802.11i */ 938 WLAN_STATUS_INVALID_IE = 40, 939 WLAN_STATUS_INVALID_GROUP_CIPHER = 41, 940 WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42, 941 WLAN_STATUS_INVALID_AKMP = 43, 942 WLAN_STATUS_UNSUPP_RSN_VERSION = 44, 943 WLAN_STATUS_INVALID_RSN_IE_CAP = 45, 944 WLAN_STATUS_CIPHER_SUITE_REJECTED = 46, 945 /* 802.11e */ 946 WLAN_STATUS_UNSPECIFIED_QOS = 32, 947 WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33, 948 WLAN_STATUS_ASSOC_DENIED_LOWACK = 34, 949 WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35, 950 WLAN_STATUS_REQUEST_DECLINED = 37, 951 WLAN_STATUS_INVALID_QOS_PARAM = 38, 952 WLAN_STATUS_CHANGE_TSPEC = 39, 953 WLAN_STATUS_WAIT_TS_DELAY = 47, 954 WLAN_STATUS_NO_DIRECT_LINK = 48, 955 WLAN_STATUS_STA_NOT_PRESENT = 49, 956 WLAN_STATUS_STA_NOT_QSTA = 50, 957 }; 958 959 960 /* Reason codes */ 961 enum ieee80211_reasoncode { 962 WLAN_REASON_UNSPECIFIED = 1, 963 WLAN_REASON_PREV_AUTH_NOT_VALID = 2, 964 WLAN_REASON_DEAUTH_LEAVING = 3, 965 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4, 966 WLAN_REASON_DISASSOC_AP_BUSY = 5, 967 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6, 968 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7, 969 WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8, 970 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9, 971 /* 802.11h */ 972 WLAN_REASON_DISASSOC_BAD_POWER = 10, 973 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11, 974 /* 802.11i */ 975 WLAN_REASON_INVALID_IE = 13, 976 WLAN_REASON_MIC_FAILURE = 14, 977 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15, 978 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16, 979 WLAN_REASON_IE_DIFFERENT = 17, 980 WLAN_REASON_INVALID_GROUP_CIPHER = 18, 981 WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19, 982 WLAN_REASON_INVALID_AKMP = 20, 983 WLAN_REASON_UNSUPP_RSN_VERSION = 21, 984 WLAN_REASON_INVALID_RSN_IE_CAP = 22, 985 WLAN_REASON_IEEE8021X_FAILED = 23, 986 WLAN_REASON_CIPHER_SUITE_REJECTED = 24, 987 /* 802.11e */ 988 WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32, 989 WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33, 990 WLAN_REASON_DISASSOC_LOW_ACK = 34, 991 WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35, 992 WLAN_REASON_QSTA_LEAVE_QBSS = 36, 993 WLAN_REASON_QSTA_NOT_USE = 37, 994 WLAN_REASON_QSTA_REQUIRE_SETUP = 38, 995 WLAN_REASON_QSTA_TIMEOUT = 39, 996 WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45, 997 }; 998 999 1000 /* Information Element IDs */ 1001 enum ieee80211_eid { 1002 WLAN_EID_SSID = 0, 1003 WLAN_EID_SUPP_RATES = 1, 1004 WLAN_EID_FH_PARAMS = 2, 1005 WLAN_EID_DS_PARAMS = 3, 1006 WLAN_EID_CF_PARAMS = 4, 1007 WLAN_EID_TIM = 5, 1008 WLAN_EID_IBSS_PARAMS = 6, 1009 WLAN_EID_CHALLENGE = 16, 1010 /* 802.11d */ 1011 WLAN_EID_COUNTRY = 7, 1012 WLAN_EID_HP_PARAMS = 8, 1013 WLAN_EID_HP_TABLE = 9, 1014 WLAN_EID_REQUEST = 10, 1015 /* 802.11e */ 1016 WLAN_EID_QBSS_LOAD = 11, 1017 WLAN_EID_EDCA_PARAM_SET = 12, 1018 WLAN_EID_TSPEC = 13, 1019 WLAN_EID_TCLAS = 14, 1020 WLAN_EID_SCHEDULE = 15, 1021 WLAN_EID_TS_DELAY = 43, 1022 WLAN_EID_TCLAS_PROCESSING = 44, 1023 WLAN_EID_QOS_CAPA = 46, 1024 /* 802.11s 1025 * 1026 * All mesh EID numbers are pending IEEE 802.11 ANA approval. 1027 * The numbers have been incremented from those suggested in 1028 * 802.11s/D2.0 so that MESH_CONFIG does not conflict with 1029 * EXT_SUPP_RATES. 1030 */ 1031 WLAN_EID_MESH_CONFIG = 51, 1032 WLAN_EID_MESH_ID = 52, 1033 WLAN_EID_PEER_LINK = 55, 1034 WLAN_EID_PREQ = 68, 1035 WLAN_EID_PREP = 69, 1036 WLAN_EID_PERR = 70, 1037 /* 802.11h */ 1038 WLAN_EID_PWR_CONSTRAINT = 32, 1039 WLAN_EID_PWR_CAPABILITY = 33, 1040 WLAN_EID_TPC_REQUEST = 34, 1041 WLAN_EID_TPC_REPORT = 35, 1042 WLAN_EID_SUPPORTED_CHANNELS = 36, 1043 WLAN_EID_CHANNEL_SWITCH = 37, 1044 WLAN_EID_MEASURE_REQUEST = 38, 1045 WLAN_EID_MEASURE_REPORT = 39, 1046 WLAN_EID_QUIET = 40, 1047 WLAN_EID_IBSS_DFS = 41, 1048 /* 802.11g */ 1049 WLAN_EID_ERP_INFO = 42, 1050 WLAN_EID_EXT_SUPP_RATES = 50, 1051 /* 802.11n */ 1052 WLAN_EID_HT_CAPABILITY = 45, 1053 WLAN_EID_HT_INFORMATION = 61, 1054 /* 802.11i */ 1055 WLAN_EID_RSN = 48, 1056 WLAN_EID_TIMEOUT_INTERVAL = 56, 1057 WLAN_EID_MMIE = 76 /* 802.11w */, 1058 WLAN_EID_WPA = 221, 1059 WLAN_EID_GENERIC = 221, 1060 WLAN_EID_VENDOR_SPECIFIC = 221, 1061 WLAN_EID_QOS_PARAMETER = 222 1062 }; 1063 1064 /* Action category code */ 1065 enum ieee80211_category { 1066 WLAN_CATEGORY_SPECTRUM_MGMT = 0, 1067 WLAN_CATEGORY_QOS = 1, 1068 WLAN_CATEGORY_DLS = 2, 1069 WLAN_CATEGORY_BACK = 3, 1070 WLAN_CATEGORY_PUBLIC = 4, 1071 WLAN_CATEGORY_SA_QUERY = 8, 1072 WLAN_CATEGORY_WMM = 17, 1073 }; 1074 1075 /* SPECTRUM_MGMT action code */ 1076 enum ieee80211_spectrum_mgmt_actioncode { 1077 WLAN_ACTION_SPCT_MSR_REQ = 0, 1078 WLAN_ACTION_SPCT_MSR_RPRT = 1, 1079 WLAN_ACTION_SPCT_TPC_REQ = 2, 1080 WLAN_ACTION_SPCT_TPC_RPRT = 3, 1081 WLAN_ACTION_SPCT_CHL_SWITCH = 4, 1082 }; 1083 1084 /* 1085 * IEEE 802.11-2007 7.3.2.9 Country information element 1086 * 1087 * Minimum length is 8 octets, ie len must be evenly 1088 * divisible by 2 1089 */ 1090 1091 /* Although the spec says 8 I'm seeing 6 in practice */ 1092 #define IEEE80211_COUNTRY_IE_MIN_LEN 6 1093 1094 /* 1095 * For regulatory extension stuff see IEEE 802.11-2007 1096 * Annex I (page 1141) and Annex J (page 1147). Also 1097 * review 7.3.2.9. 1098 * 1099 * When dot11RegulatoryClassesRequired is true and the 1100 * first_channel/reg_extension_id is >= 201 then the IE 1101 * compromises of the 'ext' struct represented below: 1102 * 1103 * - Regulatory extension ID - when generating IE this just needs 1104 * to be monotonically increasing for each triplet passed in 1105 * the IE 1106 * - Regulatory class - index into set of rules 1107 * - Coverage class - index into air propagation time (Table 7-27), 1108 * in microseconds, you can compute the air propagation time from 1109 * the index by multiplying by 3, so index 10 yields a propagation 1110 * of 10 us. Valid values are 0-31, values 32-255 are not defined 1111 * yet. A value of 0 inicates air propagation of <= 1 us. 1112 * 1113 * See also Table I.2 for Emission limit sets and table 1114 * I.3 for Behavior limit sets. Table J.1 indicates how to map 1115 * a reg_class to an emission limit set and behavior limit set. 1116 */ 1117 #define IEEE80211_COUNTRY_EXTENSION_ID 201 1118 1119 /* 1120 * Channels numbers in the IE must be monotonically increasing 1121 * if dot11RegulatoryClassesRequired is not true. 1122 * 1123 * If dot11RegulatoryClassesRequired is true consecutive 1124 * subband triplets following a regulatory triplet shall 1125 * have monotonically increasing first_channel number fields. 1126 * 1127 * Channel numbers shall not overlap. 1128 * 1129 * Note that max_power is signed. 1130 */ 1131 struct ieee80211_country_ie_triplet { 1132 union { 1133 struct { 1134 u8 first_channel; 1135 u8 num_channels; 1136 s8 max_power; 1137 } __attribute__ ((packed)) chans; 1138 struct { 1139 u8 reg_extension_id; 1140 u8 reg_class; 1141 u8 coverage_class; 1142 } __attribute__ ((packed)) ext; 1143 }; 1144 } __attribute__ ((packed)); 1145 1146 enum ieee80211_timeout_interval_type { 1147 WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */, 1148 WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */, 1149 WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */, 1150 }; 1151 1152 /* BACK action code */ 1153 enum ieee80211_back_actioncode { 1154 WLAN_ACTION_ADDBA_REQ = 0, 1155 WLAN_ACTION_ADDBA_RESP = 1, 1156 WLAN_ACTION_DELBA = 2, 1157 }; 1158 1159 /* BACK (block-ack) parties */ 1160 enum ieee80211_back_parties { 1161 WLAN_BACK_RECIPIENT = 0, 1162 WLAN_BACK_INITIATOR = 1, 1163 WLAN_BACK_TIMER = 2, 1164 }; 1165 1166 /* SA Query action */ 1167 enum ieee80211_sa_query_action { 1168 WLAN_ACTION_SA_QUERY_REQUEST = 0, 1169 WLAN_ACTION_SA_QUERY_RESPONSE = 1, 1170 }; 1171 1172 1173 /* A-MSDU 802.11n */ 1174 #define IEEE80211_QOS_CONTROL_A_MSDU_PRESENT 0x0080 1175 1176 /* cipher suite selectors */ 1177 #define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00 1178 #define WLAN_CIPHER_SUITE_WEP40 0x000FAC01 1179 #define WLAN_CIPHER_SUITE_TKIP 0x000FAC02 1180 /* reserved: 0x000FAC03 */ 1181 #define WLAN_CIPHER_SUITE_CCMP 0x000FAC04 1182 #define WLAN_CIPHER_SUITE_WEP104 0x000FAC05 1183 #define WLAN_CIPHER_SUITE_AES_CMAC 0x000FAC06 1184 1185 #define WLAN_MAX_KEY_LEN 32 1186 1187 /** 1188 * ieee80211_get_qos_ctl - get pointer to qos control bytes 1189 * @hdr: the frame 1190 * 1191 * The qos ctrl bytes come after the frame_control, duration, seq_num 1192 * and 3 or 4 addresses of length ETH_ALEN. 1193 * 3 addr: 2 + 2 + 2 + 3*6 = 24 1194 * 4 addr: 2 + 2 + 2 + 4*6 = 30 1195 */ 1196 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr) 1197 { 1198 if (ieee80211_has_a4(hdr->frame_control)) 1199 return (u8 *)hdr + 30; 1200 else 1201 return (u8 *)hdr + 24; 1202 } 1203 1204 /** 1205 * ieee80211_get_SA - get pointer to SA 1206 * @hdr: the frame 1207 * 1208 * Given an 802.11 frame, this function returns the offset 1209 * to the source address (SA). It does not verify that the 1210 * header is long enough to contain the address, and the 1211 * header must be long enough to contain the frame control 1212 * field. 1213 */ 1214 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr) 1215 { 1216 if (ieee80211_has_a4(hdr->frame_control)) 1217 return hdr->addr4; 1218 if (ieee80211_has_fromds(hdr->frame_control)) 1219 return hdr->addr3; 1220 return hdr->addr2; 1221 } 1222 1223 /** 1224 * ieee80211_get_DA - get pointer to DA 1225 * @hdr: the frame 1226 * 1227 * Given an 802.11 frame, this function returns the offset 1228 * to the destination address (DA). It does not verify that 1229 * the header is long enough to contain the address, and the 1230 * header must be long enough to contain the frame control 1231 * field. 1232 */ 1233 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr) 1234 { 1235 if (ieee80211_has_tods(hdr->frame_control)) 1236 return hdr->addr3; 1237 else 1238 return hdr->addr1; 1239 } 1240 1241 /** 1242 * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame 1243 * @hdr: the frame (buffer must include at least the first octet of payload) 1244 */ 1245 static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr) 1246 { 1247 if (ieee80211_is_disassoc(hdr->frame_control) || 1248 ieee80211_is_deauth(hdr->frame_control)) 1249 return true; 1250 1251 if (ieee80211_is_action(hdr->frame_control)) { 1252 u8 *category; 1253 1254 /* 1255 * Action frames, excluding Public Action frames, are Robust 1256 * Management Frames. However, if we are looking at a Protected 1257 * frame, skip the check since the data may be encrypted and 1258 * the frame has already been found to be a Robust Management 1259 * Frame (by the other end). 1260 */ 1261 if (ieee80211_has_protected(hdr->frame_control)) 1262 return true; 1263 category = ((u8 *) hdr) + 24; 1264 return *category != WLAN_CATEGORY_PUBLIC; 1265 } 1266 1267 return false; 1268 } 1269 1270 /** 1271 * ieee80211_fhss_chan_to_freq - get channel frequency 1272 * @channel: the FHSS channel 1273 * 1274 * Convert IEEE802.11 FHSS channel to frequency (MHz) 1275 * Ref IEEE 802.11-2007 section 14.6 1276 */ 1277 static inline int ieee80211_fhss_chan_to_freq(int channel) 1278 { 1279 if ((channel > 1) && (channel < 96)) 1280 return channel + 2400; 1281 else 1282 return -1; 1283 } 1284 1285 /** 1286 * ieee80211_freq_to_fhss_chan - get channel 1287 * @freq: the channels frequency 1288 * 1289 * Convert frequency (MHz) to IEEE802.11 FHSS channel 1290 * Ref IEEE 802.11-2007 section 14.6 1291 */ 1292 static inline int ieee80211_freq_to_fhss_chan(int freq) 1293 { 1294 if ((freq > 2401) && (freq < 2496)) 1295 return freq - 2400; 1296 else 1297 return -1; 1298 } 1299 1300 /** 1301 * ieee80211_dsss_chan_to_freq - get channel center frequency 1302 * @channel: the DSSS channel 1303 * 1304 * Convert IEEE802.11 DSSS channel to the center frequency (MHz). 1305 * Ref IEEE 802.11-2007 section 15.6 1306 */ 1307 static inline int ieee80211_dsss_chan_to_freq(int channel) 1308 { 1309 if ((channel > 0) && (channel < 14)) 1310 return 2407 + (channel * 5); 1311 else if (channel == 14) 1312 return 2484; 1313 else 1314 return -1; 1315 } 1316 1317 /** 1318 * ieee80211_freq_to_dsss_chan - get channel 1319 * @freq: the frequency 1320 * 1321 * Convert frequency (MHz) to IEEE802.11 DSSS channel 1322 * Ref IEEE 802.11-2007 section 15.6 1323 * 1324 * This routine selects the channel with the closest center frequency. 1325 */ 1326 static inline int ieee80211_freq_to_dsss_chan(int freq) 1327 { 1328 if ((freq >= 2410) && (freq < 2475)) 1329 return (freq - 2405) / 5; 1330 else if ((freq >= 2482) && (freq < 2487)) 1331 return 14; 1332 else 1333 return -1; 1334 } 1335 1336 /* Convert IEEE802.11 HR DSSS channel to frequency (MHz) and back 1337 * Ref IEEE 802.11-2007 section 18.4.6.2 1338 * 1339 * The channels and frequencies are the same as those defined for DSSS 1340 */ 1341 #define ieee80211_hr_chan_to_freq(chan) ieee80211_dsss_chan_to_freq(chan) 1342 #define ieee80211_freq_to_hr_chan(freq) ieee80211_freq_to_dsss_chan(freq) 1343 1344 /* Convert IEEE802.11 ERP channel to frequency (MHz) and back 1345 * Ref IEEE 802.11-2007 section 19.4.2 1346 */ 1347 #define ieee80211_erp_chan_to_freq(chan) ieee80211_hr_chan_to_freq(chan) 1348 #define ieee80211_freq_to_erp_chan(freq) ieee80211_freq_to_hr_chan(freq) 1349 1350 /** 1351 * ieee80211_ofdm_chan_to_freq - get channel center frequency 1352 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz 1353 * @channel: the OFDM channel 1354 * 1355 * Convert IEEE802.11 OFDM channel to center frequency (MHz) 1356 * Ref IEEE 802.11-2007 section 17.3.8.3.2 1357 */ 1358 static inline int ieee80211_ofdm_chan_to_freq(int s_freq, int channel) 1359 { 1360 if ((channel > 0) && (channel <= 200) && 1361 (s_freq >= 4000)) 1362 return s_freq + (channel * 5); 1363 else 1364 return -1; 1365 } 1366 1367 /** 1368 * ieee80211_freq_to_ofdm_channel - get channel 1369 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz 1370 * @freq: the frequency 1371 * 1372 * Convert frequency (MHz) to IEEE802.11 OFDM channel 1373 * Ref IEEE 802.11-2007 section 17.3.8.3.2 1374 * 1375 * This routine selects the channel with the closest center frequency. 1376 */ 1377 static inline int ieee80211_freq_to_ofdm_chan(int s_freq, int freq) 1378 { 1379 if ((freq > (s_freq + 2)) && (freq <= (s_freq + 1202)) && 1380 (s_freq >= 4000)) 1381 return (freq + 2 - s_freq) / 5; 1382 else 1383 return -1; 1384 } 1385 1386 #endif /* LINUX_IEEE80211_H */ 1387