1 /* 2 * This file define a set of standard wireless extensions 3 * 4 * Version : 18 12.3.05 5 * 6 * Authors : Jean Tourrilhes - HPL - <[email protected]> 7 * Copyright (c) 1997-2005 Jean Tourrilhes, All Rights Reserved. 8 */ 9 10 #ifndef _LINUX_WIRELESS_H 11 #define _LINUX_WIRELESS_H 12 13 /************************** DOCUMENTATION **************************/ 14 /* 15 * Initial APIs (1996 -> onward) : 16 * ----------------------------- 17 * Basically, the wireless extensions are for now a set of standard ioctl 18 * call + /proc/net/wireless 19 * 20 * The entry /proc/net/wireless give statistics and information on the 21 * driver. 22 * This is better than having each driver having its entry because 23 * its centralised and we may remove the driver module safely. 24 * 25 * Ioctl are used to configure the driver and issue commands. This is 26 * better than command line options of insmod because we may want to 27 * change dynamically (while the driver is running) some parameters. 28 * 29 * The ioctl mechanimsm are copied from standard devices ioctl. 30 * We have the list of command plus a structure descibing the 31 * data exchanged... 32 * Note that to add these ioctl, I was obliged to modify : 33 * # net/core/dev.c (two place + add include) 34 * # net/ipv4/af_inet.c (one place + add include) 35 * 36 * /proc/net/wireless is a copy of /proc/net/dev. 37 * We have a structure for data passed from the driver to /proc/net/wireless 38 * Too add this, I've modified : 39 * # net/core/dev.c (two other places) 40 * # include/linux/netdevice.h (one place) 41 * # include/linux/proc_fs.h (one place) 42 * 43 * New driver API (2002 -> onward) : 44 * ------------------------------- 45 * This file is only concerned with the user space API and common definitions. 46 * The new driver API is defined and documented in : 47 * # include/net/iw_handler.h 48 * 49 * Note as well that /proc/net/wireless implementation has now moved in : 50 * # net/core/wireless.c 51 * 52 * Wireless Events (2002 -> onward) : 53 * -------------------------------- 54 * Events are defined at the end of this file, and implemented in : 55 * # net/core/wireless.c 56 * 57 * Other comments : 58 * -------------- 59 * Do not add here things that are redundant with other mechanisms 60 * (drivers init, ifconfig, /proc/net/dev, ...) and with are not 61 * wireless specific. 62 * 63 * These wireless extensions are not magic : each driver has to provide 64 * support for them... 65 * 66 * IMPORTANT NOTE : As everything in the kernel, this is very much a 67 * work in progress. Contact me if you have ideas of improvements... 68 */ 69 70 /***************************** INCLUDES *****************************/ 71 72 /* To minimise problems in user space, I might remove those headers 73 * at some point. Jean II */ 74 #include <linux/types.h> /* for "caddr_t" et al */ 75 #include <linux/socket.h> /* for "struct sockaddr" et al */ 76 #include <linux/if.h> /* for IFNAMSIZ and co... */ 77 78 /***************************** VERSION *****************************/ 79 /* 80 * This constant is used to know the availability of the wireless 81 * extensions and to know which version of wireless extensions it is 82 * (there is some stuff that will be added in the future...) 83 * I just plan to increment with each new version. 84 */ 85 #define WIRELESS_EXT 18 86 87 /* 88 * Changes : 89 * 90 * V2 to V3 91 * -------- 92 * Alan Cox start some incompatibles changes. I've integrated a bit more. 93 * - Encryption renamed to Encode to avoid US regulation problems 94 * - Frequency changed from float to struct to avoid problems on old 386 95 * 96 * V3 to V4 97 * -------- 98 * - Add sensitivity 99 * 100 * V4 to V5 101 * -------- 102 * - Missing encoding definitions in range 103 * - Access points stuff 104 * 105 * V5 to V6 106 * -------- 107 * - 802.11 support (ESSID ioctls) 108 * 109 * V6 to V7 110 * -------- 111 * - define IW_ESSID_MAX_SIZE and IW_MAX_AP 112 * 113 * V7 to V8 114 * -------- 115 * - Changed my e-mail address 116 * - More 802.11 support (nickname, rate, rts, frag) 117 * - List index in frequencies 118 * 119 * V8 to V9 120 * -------- 121 * - Support for 'mode of operation' (ad-hoc, managed...) 122 * - Support for unicast and multicast power saving 123 * - Change encoding to support larger tokens (>64 bits) 124 * - Updated iw_params (disable, flags) and use it for NWID 125 * - Extracted iw_point from iwreq for clarity 126 * 127 * V9 to V10 128 * --------- 129 * - Add PM capability to range structure 130 * - Add PM modifier : MAX/MIN/RELATIVE 131 * - Add encoding option : IW_ENCODE_NOKEY 132 * - Add TxPower ioctls (work like TxRate) 133 * 134 * V10 to V11 135 * ---------- 136 * - Add WE version in range (help backward/forward compatibility) 137 * - Add retry ioctls (work like PM) 138 * 139 * V11 to V12 140 * ---------- 141 * - Add SIOCSIWSTATS to get /proc/net/wireless programatically 142 * - Add DEV PRIVATE IOCTL to avoid collisions in SIOCDEVPRIVATE space 143 * - Add new statistics (frag, retry, beacon) 144 * - Add average quality (for user space calibration) 145 * 146 * V12 to V13 147 * ---------- 148 * - Document creation of new driver API. 149 * - Extract union iwreq_data from struct iwreq (for new driver API). 150 * - Rename SIOCSIWNAME as SIOCSIWCOMMIT 151 * 152 * V13 to V14 153 * ---------- 154 * - Wireless Events support : define struct iw_event 155 * - Define additional specific event numbers 156 * - Add "addr" and "param" fields in union iwreq_data 157 * - AP scanning stuff (SIOCSIWSCAN and friends) 158 * 159 * V14 to V15 160 * ---------- 161 * - Add IW_PRIV_TYPE_ADDR for struct sockaddr private arg 162 * - Make struct iw_freq signed (both m & e), add explicit padding 163 * - Add IWEVCUSTOM for driver specific event/scanning token 164 * - Add IW_MAX_GET_SPY for driver returning a lot of addresses 165 * - Add IW_TXPOW_RANGE for range of Tx Powers 166 * - Add IWEVREGISTERED & IWEVEXPIRED events for Access Points 167 * - Add IW_MODE_MONITOR for passive monitor 168 * 169 * V15 to V16 170 * ---------- 171 * - Increase the number of bitrates in iw_range to 32 (for 802.11g) 172 * - Increase the number of frequencies in iw_range to 32 (for 802.11b+a) 173 * - Reshuffle struct iw_range for increases, add filler 174 * - Increase IW_MAX_AP to 64 for driver returning a lot of addresses 175 * - Remove IW_MAX_GET_SPY because conflict with enhanced spy support 176 * - Add SIOCSIWTHRSPY/SIOCGIWTHRSPY and "struct iw_thrspy" 177 * - Add IW_ENCODE_TEMP and iw_range->encoding_login_index 178 * 179 * V16 to V17 180 * ---------- 181 * - Add flags to frequency -> auto/fixed 182 * - Document (struct iw_quality *)->updated, add new flags (INVALID) 183 * - Wireless Event capability in struct iw_range 184 * - Add support for relative TxPower (yick !) 185 * 186 * V17 to V18 (From Jouni Malinen <[email protected]>) 187 * ---------- 188 * - Add support for WPA/WPA2 189 * - Add extended encoding configuration (SIOCSIWENCODEEXT and 190 * SIOCGIWENCODEEXT) 191 * - Add SIOCSIWGENIE/SIOCGIWGENIE 192 * - Add SIOCSIWMLME 193 * - Add SIOCSIWPMKSA 194 * - Add struct iw_range bit field for supported encoding capabilities 195 * - Add optional scan request parameters for SIOCSIWSCAN 196 * - Add SIOCSIWAUTH/SIOCGIWAUTH for setting authentication and WPA 197 * related parameters (extensible up to 4096 parameter values) 198 * - Add wireless events: IWEVGENIE, IWEVMICHAELMICFAILURE, 199 * IWEVASSOCREQIE, IWEVASSOCRESPIE, IWEVPMKIDCAND 200 */ 201 202 /**************************** CONSTANTS ****************************/ 203 204 /* -------------------------- IOCTL LIST -------------------------- */ 205 206 /* Wireless Identification */ 207 #define SIOCSIWCOMMIT 0x8B00 /* Commit pending changes to driver */ 208 #define SIOCGIWNAME 0x8B01 /* get name == wireless protocol */ 209 /* SIOCGIWNAME is used to verify the presence of Wireless Extensions. 210 * Common values : "IEEE 802.11-DS", "IEEE 802.11-FH", "IEEE 802.11b"... 211 * Don't put the name of your driver there, it's useless. */ 212 213 /* Basic operations */ 214 #define SIOCSIWNWID 0x8B02 /* set network id (pre-802.11) */ 215 #define SIOCGIWNWID 0x8B03 /* get network id (the cell) */ 216 #define SIOCSIWFREQ 0x8B04 /* set channel/frequency (Hz) */ 217 #define SIOCGIWFREQ 0x8B05 /* get channel/frequency (Hz) */ 218 #define SIOCSIWMODE 0x8B06 /* set operation mode */ 219 #define SIOCGIWMODE 0x8B07 /* get operation mode */ 220 #define SIOCSIWSENS 0x8B08 /* set sensitivity (dBm) */ 221 #define SIOCGIWSENS 0x8B09 /* get sensitivity (dBm) */ 222 223 /* Informative stuff */ 224 #define SIOCSIWRANGE 0x8B0A /* Unused */ 225 #define SIOCGIWRANGE 0x8B0B /* Get range of parameters */ 226 #define SIOCSIWPRIV 0x8B0C /* Unused */ 227 #define SIOCGIWPRIV 0x8B0D /* get private ioctl interface info */ 228 #define SIOCSIWSTATS 0x8B0E /* Unused */ 229 #define SIOCGIWSTATS 0x8B0F /* Get /proc/net/wireless stats */ 230 /* SIOCGIWSTATS is strictly used between user space and the kernel, and 231 * is never passed to the driver (i.e. the driver will never see it). */ 232 233 /* Spy support (statistics per MAC address - used for Mobile IP support) */ 234 #define SIOCSIWSPY 0x8B10 /* set spy addresses */ 235 #define SIOCGIWSPY 0x8B11 /* get spy info (quality of link) */ 236 #define SIOCSIWTHRSPY 0x8B12 /* set spy threshold (spy event) */ 237 #define SIOCGIWTHRSPY 0x8B13 /* get spy threshold */ 238 239 /* Access Point manipulation */ 240 #define SIOCSIWAP 0x8B14 /* set access point MAC addresses */ 241 #define SIOCGIWAP 0x8B15 /* get access point MAC addresses */ 242 #define SIOCGIWAPLIST 0x8B17 /* Deprecated in favor of scanning */ 243 #define SIOCSIWSCAN 0x8B18 /* trigger scanning (list cells) */ 244 #define SIOCGIWSCAN 0x8B19 /* get scanning results */ 245 246 /* 802.11 specific support */ 247 #define SIOCSIWESSID 0x8B1A /* set ESSID (network name) */ 248 #define SIOCGIWESSID 0x8B1B /* get ESSID */ 249 #define SIOCSIWNICKN 0x8B1C /* set node name/nickname */ 250 #define SIOCGIWNICKN 0x8B1D /* get node name/nickname */ 251 /* As the ESSID and NICKN are strings up to 32 bytes long, it doesn't fit 252 * within the 'iwreq' structure, so we need to use the 'data' member to 253 * point to a string in user space, like it is done for RANGE... */ 254 255 /* Other parameters useful in 802.11 and some other devices */ 256 #define SIOCSIWRATE 0x8B20 /* set default bit rate (bps) */ 257 #define SIOCGIWRATE 0x8B21 /* get default bit rate (bps) */ 258 #define SIOCSIWRTS 0x8B22 /* set RTS/CTS threshold (bytes) */ 259 #define SIOCGIWRTS 0x8B23 /* get RTS/CTS threshold (bytes) */ 260 #define SIOCSIWFRAG 0x8B24 /* set fragmentation thr (bytes) */ 261 #define SIOCGIWFRAG 0x8B25 /* get fragmentation thr (bytes) */ 262 #define SIOCSIWTXPOW 0x8B26 /* set transmit power (dBm) */ 263 #define SIOCGIWTXPOW 0x8B27 /* get transmit power (dBm) */ 264 #define SIOCSIWRETRY 0x8B28 /* set retry limits and lifetime */ 265 #define SIOCGIWRETRY 0x8B29 /* get retry limits and lifetime */ 266 267 /* Encoding stuff (scrambling, hardware security, WEP...) */ 268 #define SIOCSIWENCODE 0x8B2A /* set encoding token & mode */ 269 #define SIOCGIWENCODE 0x8B2B /* get encoding token & mode */ 270 /* Power saving stuff (power management, unicast and multicast) */ 271 #define SIOCSIWPOWER 0x8B2C /* set Power Management settings */ 272 #define SIOCGIWPOWER 0x8B2D /* get Power Management settings */ 273 274 /* WPA : Generic IEEE 802.11 informatiom element (e.g., for WPA/RSN/WMM). 275 * This ioctl uses struct iw_point and data buffer that includes IE id and len 276 * fields. More than one IE may be included in the request. Setting the generic 277 * IE to empty buffer (len=0) removes the generic IE from the driver. Drivers 278 * are allowed to generate their own WPA/RSN IEs, but in these cases, drivers 279 * are required to report the used IE as a wireless event, e.g., when 280 * associating with an AP. */ 281 #define SIOCSIWGENIE 0x8B30 /* set generic IE */ 282 #define SIOCGIWGENIE 0x8B31 /* get generic IE */ 283 284 /* WPA : IEEE 802.11 MLME requests */ 285 #define SIOCSIWMLME 0x8B16 /* request MLME operation; uses 286 * struct iw_mlme */ 287 /* WPA : Authentication mode parameters */ 288 #define SIOCSIWAUTH 0x8B32 /* set authentication mode params */ 289 #define SIOCGIWAUTH 0x8B33 /* get authentication mode params */ 290 291 /* WPA : Extended version of encoding configuration */ 292 #define SIOCSIWENCODEEXT 0x8B34 /* set encoding token & mode */ 293 #define SIOCGIWENCODEEXT 0x8B35 /* get encoding token & mode */ 294 295 /* WPA2 : PMKSA cache management */ 296 #define SIOCSIWPMKSA 0x8B36 /* PMKSA cache operation */ 297 298 /* -------------------- DEV PRIVATE IOCTL LIST -------------------- */ 299 300 /* These 32 ioctl are wireless device private, for 16 commands. 301 * Each driver is free to use them for whatever purpose it chooses, 302 * however the driver *must* export the description of those ioctls 303 * with SIOCGIWPRIV and *must* use arguments as defined below. 304 * If you don't follow those rules, DaveM is going to hate you (reason : 305 * it make mixed 32/64bit operation impossible). 306 */ 307 #define SIOCIWFIRSTPRIV 0x8BE0 308 #define SIOCIWLASTPRIV 0x8BFF 309 /* Previously, we were using SIOCDEVPRIVATE, but we now have our 310 * separate range because of collisions with other tools such as 311 * 'mii-tool'. 312 * We now have 32 commands, so a bit more space ;-). 313 * Also, all 'odd' commands are only usable by root and don't return the 314 * content of ifr/iwr to user (but you are not obliged to use the set/get 315 * convention, just use every other two command). More details in iwpriv.c. 316 * And I repeat : you are not forced to use them with iwpriv, but you 317 * must be compliant with it. 318 */ 319 320 /* ------------------------- IOCTL STUFF ------------------------- */ 321 322 /* The first and the last (range) */ 323 #define SIOCIWFIRST 0x8B00 324 #define SIOCIWLAST SIOCIWLASTPRIV /* 0x8BFF */ 325 326 /* Even : get (world access), odd : set (root access) */ 327 #define IW_IS_SET(cmd) (!((cmd) & 0x1)) 328 #define IW_IS_GET(cmd) ((cmd) & 0x1) 329 330 /* ----------------------- WIRELESS EVENTS ----------------------- */ 331 /* Those are *NOT* ioctls, do not issue request on them !!! */ 332 /* Most events use the same identifier as ioctl requests */ 333 334 #define IWEVTXDROP 0x8C00 /* Packet dropped to excessive retry */ 335 #define IWEVQUAL 0x8C01 /* Quality part of statistics (scan) */ 336 #define IWEVCUSTOM 0x8C02 /* Driver specific ascii string */ 337 #define IWEVREGISTERED 0x8C03 /* Discovered a new node (AP mode) */ 338 #define IWEVEXPIRED 0x8C04 /* Expired a node (AP mode) */ 339 #define IWEVGENIE 0x8C05 /* Generic IE (WPA, RSN, WMM, ..) 340 * (scan results); This includes id and 341 * length fields. One IWEVGENIE may 342 * contain more than one IE. Scan 343 * results may contain one or more 344 * IWEVGENIE events. */ 345 #define IWEVMICHAELMICFAILURE 0x8C06 /* Michael MIC failure 346 * (struct iw_michaelmicfailure) 347 */ 348 #define IWEVASSOCREQIE 0x8C07 /* IEs used in (Re)Association Request. 349 * The data includes id and length 350 * fields and may contain more than one 351 * IE. This event is required in 352 * Managed mode if the driver 353 * generates its own WPA/RSN IE. This 354 * should be sent just before 355 * IWEVREGISTERED event for the 356 * association. */ 357 #define IWEVASSOCRESPIE 0x8C08 /* IEs used in (Re)Association 358 * Response. The data includes id and 359 * length fields and may contain more 360 * than one IE. This may be sent 361 * between IWEVASSOCREQIE and 362 * IWEVREGISTERED events for the 363 * association. */ 364 #define IWEVPMKIDCAND 0x8C09 /* PMKID candidate for RSN 365 * pre-authentication 366 * (struct iw_pmkid_cand) */ 367 368 #define IWEVFIRST 0x8C00 369 370 /* ------------------------- PRIVATE INFO ------------------------- */ 371 /* 372 * The following is used with SIOCGIWPRIV. It allow a driver to define 373 * the interface (name, type of data) for its private ioctl. 374 * Privates ioctl are SIOCIWFIRSTPRIV -> SIOCIWLASTPRIV 375 */ 376 377 #define IW_PRIV_TYPE_MASK 0x7000 /* Type of arguments */ 378 #define IW_PRIV_TYPE_NONE 0x0000 379 #define IW_PRIV_TYPE_BYTE 0x1000 /* Char as number */ 380 #define IW_PRIV_TYPE_CHAR 0x2000 /* Char as character */ 381 #define IW_PRIV_TYPE_INT 0x4000 /* 32 bits int */ 382 #define IW_PRIV_TYPE_FLOAT 0x5000 /* struct iw_freq */ 383 #define IW_PRIV_TYPE_ADDR 0x6000 /* struct sockaddr */ 384 385 #define IW_PRIV_SIZE_FIXED 0x0800 /* Variable or fixed number of args */ 386 387 #define IW_PRIV_SIZE_MASK 0x07FF /* Max number of those args */ 388 389 /* 390 * Note : if the number of args is fixed and the size < 16 octets, 391 * instead of passing a pointer we will put args in the iwreq struct... 392 */ 393 394 /* ----------------------- OTHER CONSTANTS ----------------------- */ 395 396 /* Maximum frequencies in the range struct */ 397 #define IW_MAX_FREQUENCIES 32 398 /* Note : if you have something like 80 frequencies, 399 * don't increase this constant and don't fill the frequency list. 400 * The user will be able to set by channel anyway... */ 401 402 /* Maximum bit rates in the range struct */ 403 #define IW_MAX_BITRATES 32 404 405 /* Maximum tx powers in the range struct */ 406 #define IW_MAX_TXPOWER 8 407 /* Note : if you more than 8 TXPowers, just set the max and min or 408 * a few of them in the struct iw_range. */ 409 410 /* Maximum of address that you may set with SPY */ 411 #define IW_MAX_SPY 8 412 413 /* Maximum of address that you may get in the 414 list of access points in range */ 415 #define IW_MAX_AP 64 416 417 /* Maximum size of the ESSID and NICKN strings */ 418 #define IW_ESSID_MAX_SIZE 32 419 420 /* Modes of operation */ 421 #define IW_MODE_AUTO 0 /* Let the driver decides */ 422 #define IW_MODE_ADHOC 1 /* Single cell network */ 423 #define IW_MODE_INFRA 2 /* Multi cell network, roaming, ... */ 424 #define IW_MODE_MASTER 3 /* Synchronisation master or Access Point */ 425 #define IW_MODE_REPEAT 4 /* Wireless Repeater (forwarder) */ 426 #define IW_MODE_SECOND 5 /* Secondary master/repeater (backup) */ 427 #define IW_MODE_MONITOR 6 /* Passive monitor (listen only) */ 428 429 /* Statistics flags (bitmask in updated) */ 430 #define IW_QUAL_QUAL_UPDATED 0x1 /* Value was updated since last read */ 431 #define IW_QUAL_LEVEL_UPDATED 0x2 432 #define IW_QUAL_NOISE_UPDATED 0x4 433 #define IW_QUAL_QUAL_INVALID 0x10 /* Driver doesn't provide value */ 434 #define IW_QUAL_LEVEL_INVALID 0x20 435 #define IW_QUAL_NOISE_INVALID 0x40 436 437 /* Frequency flags */ 438 #define IW_FREQ_AUTO 0x00 /* Let the driver decides */ 439 #define IW_FREQ_FIXED 0x01 /* Force a specific value */ 440 441 /* Maximum number of size of encoding token available 442 * they are listed in the range structure */ 443 #define IW_MAX_ENCODING_SIZES 8 444 445 /* Maximum size of the encoding token in bytes */ 446 #define IW_ENCODING_TOKEN_MAX 32 /* 256 bits (for now) */ 447 448 /* Flags for encoding (along with the token) */ 449 #define IW_ENCODE_INDEX 0x00FF /* Token index (if needed) */ 450 #define IW_ENCODE_FLAGS 0xFF00 /* Flags defined below */ 451 #define IW_ENCODE_MODE 0xF000 /* Modes defined below */ 452 #define IW_ENCODE_DISABLED 0x8000 /* Encoding disabled */ 453 #define IW_ENCODE_ENABLED 0x0000 /* Encoding enabled */ 454 #define IW_ENCODE_RESTRICTED 0x4000 /* Refuse non-encoded packets */ 455 #define IW_ENCODE_OPEN 0x2000 /* Accept non-encoded packets */ 456 #define IW_ENCODE_NOKEY 0x0800 /* Key is write only, so not present */ 457 #define IW_ENCODE_TEMP 0x0400 /* Temporary key */ 458 459 /* Power management flags available (along with the value, if any) */ 460 #define IW_POWER_ON 0x0000 /* No details... */ 461 #define IW_POWER_TYPE 0xF000 /* Type of parameter */ 462 #define IW_POWER_PERIOD 0x1000 /* Value is a period/duration of */ 463 #define IW_POWER_TIMEOUT 0x2000 /* Value is a timeout (to go asleep) */ 464 #define IW_POWER_MODE 0x0F00 /* Power Management mode */ 465 #define IW_POWER_UNICAST_R 0x0100 /* Receive only unicast messages */ 466 #define IW_POWER_MULTICAST_R 0x0200 /* Receive only multicast messages */ 467 #define IW_POWER_ALL_R 0x0300 /* Receive all messages though PM */ 468 #define IW_POWER_FORCE_S 0x0400 /* Force PM procedure for sending unicast */ 469 #define IW_POWER_REPEATER 0x0800 /* Repeat broadcast messages in PM period */ 470 #define IW_POWER_MODIFIER 0x000F /* Modify a parameter */ 471 #define IW_POWER_MIN 0x0001 /* Value is a minimum */ 472 #define IW_POWER_MAX 0x0002 /* Value is a maximum */ 473 #define IW_POWER_RELATIVE 0x0004 /* Value is not in seconds/ms/us */ 474 475 /* Transmit Power flags available */ 476 #define IW_TXPOW_TYPE 0x00FF /* Type of value */ 477 #define IW_TXPOW_DBM 0x0000 /* Value is in dBm */ 478 #define IW_TXPOW_MWATT 0x0001 /* Value is in mW */ 479 #define IW_TXPOW_RELATIVE 0x0002 /* Value is in arbitrary units */ 480 #define IW_TXPOW_RANGE 0x1000 /* Range of value between min/max */ 481 482 /* Retry limits and lifetime flags available */ 483 #define IW_RETRY_ON 0x0000 /* No details... */ 484 #define IW_RETRY_TYPE 0xF000 /* Type of parameter */ 485 #define IW_RETRY_LIMIT 0x1000 /* Maximum number of retries*/ 486 #define IW_RETRY_LIFETIME 0x2000 /* Maximum duration of retries in us */ 487 #define IW_RETRY_MODIFIER 0x000F /* Modify a parameter */ 488 #define IW_RETRY_MIN 0x0001 /* Value is a minimum */ 489 #define IW_RETRY_MAX 0x0002 /* Value is a maximum */ 490 #define IW_RETRY_RELATIVE 0x0004 /* Value is not in seconds/ms/us */ 491 492 /* Scanning request flags */ 493 #define IW_SCAN_DEFAULT 0x0000 /* Default scan of the driver */ 494 #define IW_SCAN_ALL_ESSID 0x0001 /* Scan all ESSIDs */ 495 #define IW_SCAN_THIS_ESSID 0x0002 /* Scan only this ESSID */ 496 #define IW_SCAN_ALL_FREQ 0x0004 /* Scan all Frequencies */ 497 #define IW_SCAN_THIS_FREQ 0x0008 /* Scan only this Frequency */ 498 #define IW_SCAN_ALL_MODE 0x0010 /* Scan all Modes */ 499 #define IW_SCAN_THIS_MODE 0x0020 /* Scan only this Mode */ 500 #define IW_SCAN_ALL_RATE 0x0040 /* Scan all Bit-Rates */ 501 #define IW_SCAN_THIS_RATE 0x0080 /* Scan only this Bit-Rate */ 502 /* struct iw_scan_req scan_type */ 503 #define IW_SCAN_TYPE_ACTIVE 0 504 #define IW_SCAN_TYPE_PASSIVE 1 505 /* Maximum size of returned data */ 506 #define IW_SCAN_MAX_DATA 4096 /* In bytes */ 507 508 /* Max number of char in custom event - use multiple of them if needed */ 509 #define IW_CUSTOM_MAX 256 /* In bytes */ 510 511 /* Generic information element */ 512 #define IW_GENERIC_IE_MAX 1024 513 514 /* MLME requests (SIOCSIWMLME / struct iw_mlme) */ 515 #define IW_MLME_DEAUTH 0 516 #define IW_MLME_DISASSOC 1 517 518 /* SIOCSIWAUTH/SIOCGIWAUTH struct iw_param flags */ 519 #define IW_AUTH_INDEX 0x0FFF 520 #define IW_AUTH_FLAGS 0xF000 521 /* SIOCSIWAUTH/SIOCGIWAUTH parameters (0 .. 4095) 522 * (IW_AUTH_INDEX mask in struct iw_param flags; this is the index of the 523 * parameter that is being set/get to; value will be read/written to 524 * struct iw_param value field) */ 525 #define IW_AUTH_WPA_VERSION 0 526 #define IW_AUTH_CIPHER_PAIRWISE 1 527 #define IW_AUTH_CIPHER_GROUP 2 528 #define IW_AUTH_KEY_MGMT 3 529 #define IW_AUTH_TKIP_COUNTERMEASURES 4 530 #define IW_AUTH_DROP_UNENCRYPTED 5 531 #define IW_AUTH_80211_AUTH_ALG 6 532 #define IW_AUTH_WPA_ENABLED 7 533 #define IW_AUTH_RX_UNENCRYPTED_EAPOL 8 534 #define IW_AUTH_ROAMING_CONTROL 9 535 #define IW_AUTH_PRIVACY_INVOKED 10 536 537 /* IW_AUTH_WPA_VERSION values (bit field) */ 538 #define IW_AUTH_WPA_VERSION_DISABLED 0x00000001 539 #define IW_AUTH_WPA_VERSION_WPA 0x00000002 540 #define IW_AUTH_WPA_VERSION_WPA2 0x00000004 541 542 /* IW_AUTH_PAIRWISE_CIPHER and IW_AUTH_GROUP_CIPHER values (bit field) */ 543 #define IW_AUTH_CIPHER_NONE 0x00000001 544 #define IW_AUTH_CIPHER_WEP40 0x00000002 545 #define IW_AUTH_CIPHER_TKIP 0x00000004 546 #define IW_AUTH_CIPHER_CCMP 0x00000008 547 #define IW_AUTH_CIPHER_WEP104 0x00000010 548 549 /* IW_AUTH_KEY_MGMT values (bit field) */ 550 #define IW_AUTH_KEY_MGMT_802_1X 1 551 #define IW_AUTH_KEY_MGMT_PSK 2 552 553 /* IW_AUTH_80211_AUTH_ALG values (bit field) */ 554 #define IW_AUTH_ALG_OPEN_SYSTEM 0x00000001 555 #define IW_AUTH_ALG_SHARED_KEY 0x00000002 556 #define IW_AUTH_ALG_LEAP 0x00000004 557 558 /* IW_AUTH_ROAMING_CONTROL values */ 559 #define IW_AUTH_ROAMING_ENABLE 0 /* driver/firmware based roaming */ 560 #define IW_AUTH_ROAMING_DISABLE 1 /* user space program used for roaming 561 * control */ 562 563 /* SIOCSIWENCODEEXT definitions */ 564 #define IW_ENCODE_SEQ_MAX_SIZE 8 565 /* struct iw_encode_ext ->alg */ 566 #define IW_ENCODE_ALG_NONE 0 567 #define IW_ENCODE_ALG_WEP 1 568 #define IW_ENCODE_ALG_TKIP 2 569 #define IW_ENCODE_ALG_CCMP 3 570 /* struct iw_encode_ext ->ext_flags */ 571 #define IW_ENCODE_EXT_TX_SEQ_VALID 0x00000001 572 #define IW_ENCODE_EXT_RX_SEQ_VALID 0x00000002 573 #define IW_ENCODE_EXT_GROUP_KEY 0x00000004 574 #define IW_ENCODE_EXT_SET_TX_KEY 0x00000008 575 576 /* IWEVMICHAELMICFAILURE : struct iw_michaelmicfailure ->flags */ 577 #define IW_MICFAILURE_KEY_ID 0x00000003 /* Key ID 0..3 */ 578 #define IW_MICFAILURE_GROUP 0x00000004 579 #define IW_MICFAILURE_PAIRWISE 0x00000008 580 #define IW_MICFAILURE_STAKEY 0x00000010 581 #define IW_MICFAILURE_COUNT 0x00000060 /* 1 or 2 (0 = count not supported) 582 */ 583 584 /* Bit field values for enc_capa in struct iw_range */ 585 #define IW_ENC_CAPA_WPA 0x00000001 586 #define IW_ENC_CAPA_WPA2 0x00000002 587 #define IW_ENC_CAPA_CIPHER_TKIP 0x00000004 588 #define IW_ENC_CAPA_CIPHER_CCMP 0x00000008 589 590 /* Event capability macros - in (struct iw_range *)->event_capa 591 * Because we have more than 32 possible events, we use an array of 592 * 32 bit bitmasks. Note : 32 bits = 0x20 = 2^5. */ 593 #define IW_EVENT_CAPA_BASE(cmd) ((cmd >= SIOCIWFIRSTPRIV) ? \ 594 (cmd - SIOCIWFIRSTPRIV + 0x60) : \ 595 (cmd - SIOCSIWCOMMIT)) 596 #define IW_EVENT_CAPA_INDEX(cmd) (IW_EVENT_CAPA_BASE(cmd) >> 5) 597 #define IW_EVENT_CAPA_MASK(cmd) (1 << (IW_EVENT_CAPA_BASE(cmd) & 0x1F)) 598 /* Event capability constants - event autogenerated by the kernel 599 * This list is valid for most 802.11 devices, customise as needed... */ 600 #define IW_EVENT_CAPA_K_0 (IW_EVENT_CAPA_MASK(0x8B04) | \ 601 IW_EVENT_CAPA_MASK(0x8B06) | \ 602 IW_EVENT_CAPA_MASK(0x8B1A)) 603 #define IW_EVENT_CAPA_K_1 (IW_EVENT_CAPA_MASK(0x8B2A)) 604 /* "Easy" macro to set events in iw_range (less efficient) */ 605 #define IW_EVENT_CAPA_SET(event_capa, cmd) (event_capa[IW_EVENT_CAPA_INDEX(cmd)] |= IW_EVENT_CAPA_MASK(cmd)) 606 #define IW_EVENT_CAPA_SET_KERNEL(event_capa) {event_capa[0] |= IW_EVENT_CAPA_K_0; event_capa[1] |= IW_EVENT_CAPA_K_1; } 607 608 609 /****************************** TYPES ******************************/ 610 611 /* --------------------------- SUBTYPES --------------------------- */ 612 /* 613 * Generic format for most parameters that fit in an int 614 */ 615 struct iw_param 616 { 617 __s32 value; /* The value of the parameter itself */ 618 __u8 fixed; /* Hardware should not use auto select */ 619 __u8 disabled; /* Disable the feature */ 620 __u16 flags; /* Various specifc flags (if any) */ 621 }; 622 623 /* 624 * For all data larger than 16 octets, we need to use a 625 * pointer to memory allocated in user space. 626 */ 627 struct iw_point 628 { 629 void __user *pointer; /* Pointer to the data (in user space) */ 630 __u16 length; /* number of fields or size in bytes */ 631 __u16 flags; /* Optional params */ 632 }; 633 634 /* 635 * A frequency 636 * For numbers lower than 10^9, we encode the number in 'm' and 637 * set 'e' to 0 638 * For number greater than 10^9, we divide it by the lowest power 639 * of 10 to get 'm' lower than 10^9, with 'm'= f / (10^'e')... 640 * The power of 10 is in 'e', the result of the division is in 'm'. 641 */ 642 struct iw_freq 643 { 644 __s32 m; /* Mantissa */ 645 __s16 e; /* Exponent */ 646 __u8 i; /* List index (when in range struct) */ 647 __u8 flags; /* Flags (fixed/auto) */ 648 }; 649 650 /* 651 * Quality of the link 652 */ 653 struct iw_quality 654 { 655 __u8 qual; /* link quality (%retries, SNR, 656 %missed beacons or better...) */ 657 __u8 level; /* signal level (dBm) */ 658 __u8 noise; /* noise level (dBm) */ 659 __u8 updated; /* Flags to know if updated */ 660 }; 661 662 /* 663 * Packet discarded in the wireless adapter due to 664 * "wireless" specific problems... 665 * Note : the list of counter and statistics in net_device_stats 666 * is already pretty exhaustive, and you should use that first. 667 * This is only additional stats... 668 */ 669 struct iw_discarded 670 { 671 __u32 nwid; /* Rx : Wrong nwid/essid */ 672 __u32 code; /* Rx : Unable to code/decode (WEP) */ 673 __u32 fragment; /* Rx : Can't perform MAC reassembly */ 674 __u32 retries; /* Tx : Max MAC retries num reached */ 675 __u32 misc; /* Others cases */ 676 }; 677 678 /* 679 * Packet/Time period missed in the wireless adapter due to 680 * "wireless" specific problems... 681 */ 682 struct iw_missed 683 { 684 __u32 beacon; /* Missed beacons/superframe */ 685 }; 686 687 /* 688 * Quality range (for spy threshold) 689 */ 690 struct iw_thrspy 691 { 692 struct sockaddr addr; /* Source address (hw/mac) */ 693 struct iw_quality qual; /* Quality of the link */ 694 struct iw_quality low; /* Low threshold */ 695 struct iw_quality high; /* High threshold */ 696 }; 697 698 /* 699 * Optional data for scan request 700 * 701 * Note: these optional parameters are controlling parameters for the 702 * scanning behavior, these do not apply to getting scan results 703 * (SIOCGIWSCAN). Drivers are expected to keep a local BSS table and 704 * provide a merged results with all BSSes even if the previous scan 705 * request limited scanning to a subset, e.g., by specifying an SSID. 706 * Especially, scan results are required to include an entry for the 707 * current BSS if the driver is in Managed mode and associated with an AP. 708 */ 709 struct iw_scan_req 710 { 711 __u8 scan_type; /* IW_SCAN_TYPE_{ACTIVE,PASSIVE} */ 712 __u8 essid_len; 713 __u8 num_channels; /* num entries in channel_list; 714 * 0 = scan all allowed channels */ 715 __u8 flags; /* reserved as padding; use zero, this may 716 * be used in the future for adding flags 717 * to request different scan behavior */ 718 struct sockaddr bssid; /* ff:ff:ff:ff:ff:ff for broadcast BSSID or 719 * individual address of a specific BSS */ 720 721 /* 722 * Use this ESSID if IW_SCAN_THIS_ESSID flag is used instead of using 723 * the current ESSID. This allows scan requests for specific ESSID 724 * without having to change the current ESSID and potentially breaking 725 * the current association. 726 */ 727 __u8 essid[IW_ESSID_MAX_SIZE]; 728 729 /* 730 * Optional parameters for changing the default scanning behavior. 731 * These are based on the MLME-SCAN.request from IEEE Std 802.11. 732 * TU is 1.024 ms. If these are set to 0, driver is expected to use 733 * reasonable default values. min_channel_time defines the time that 734 * will be used to wait for the first reply on each channel. If no 735 * replies are received, next channel will be scanned after this. If 736 * replies are received, total time waited on the channel is defined by 737 * max_channel_time. 738 */ 739 __u32 min_channel_time; /* in TU */ 740 __u32 max_channel_time; /* in TU */ 741 742 struct iw_freq channel_list[IW_MAX_FREQUENCIES]; 743 }; 744 745 /* ------------------------- WPA SUPPORT ------------------------- */ 746 747 /* 748 * Extended data structure for get/set encoding (this is used with 749 * SIOCSIWENCODEEXT/SIOCGIWENCODEEXT. struct iw_point and IW_ENCODE_* 750 * flags are used in the same way as with SIOCSIWENCODE/SIOCGIWENCODE and 751 * only the data contents changes (key data -> this structure, including 752 * key data). 753 * 754 * If the new key is the first group key, it will be set as the default 755 * TX key. Otherwise, default TX key index is only changed if 756 * IW_ENCODE_EXT_SET_TX_KEY flag is set. 757 * 758 * Key will be changed with SIOCSIWENCODEEXT in all cases except for 759 * special "change TX key index" operation which is indicated by setting 760 * key_len = 0 and ext_flags |= IW_ENCODE_EXT_SET_TX_KEY. 761 * 762 * tx_seq/rx_seq are only used when respective 763 * IW_ENCODE_EXT_{TX,RX}_SEQ_VALID flag is set in ext_flags. Normal 764 * TKIP/CCMP operation is to set RX seq with SIOCSIWENCODEEXT and start 765 * TX seq from zero whenever key is changed. SIOCGIWENCODEEXT is normally 766 * used only by an Authenticator (AP or an IBSS station) to get the 767 * current TX sequence number. Using TX_SEQ_VALID for SIOCSIWENCODEEXT and 768 * RX_SEQ_VALID for SIOCGIWENCODEEXT are optional, but can be useful for 769 * debugging/testing. 770 */ 771 struct iw_encode_ext 772 { 773 __u32 ext_flags; /* IW_ENCODE_EXT_* */ 774 __u8 tx_seq[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */ 775 __u8 rx_seq[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */ 776 struct sockaddr addr; /* ff:ff:ff:ff:ff:ff for broadcast/multicast 777 * (group) keys or unicast address for 778 * individual keys */ 779 __u16 alg; /* IW_ENCODE_ALG_* */ 780 __u16 key_len; 781 __u8 key[0]; 782 }; 783 784 /* SIOCSIWMLME data */ 785 struct iw_mlme 786 { 787 __u16 cmd; /* IW_MLME_* */ 788 __u16 reason_code; 789 struct sockaddr addr; 790 }; 791 792 /* SIOCSIWPMKSA data */ 793 #define IW_PMKSA_ADD 1 794 #define IW_PMKSA_REMOVE 2 795 #define IW_PMKSA_FLUSH 3 796 797 #define IW_PMKID_LEN 16 798 799 struct iw_pmksa 800 { 801 __u32 cmd; /* IW_PMKSA_* */ 802 struct sockaddr bssid; 803 __u8 pmkid[IW_PMKID_LEN]; 804 }; 805 806 /* IWEVMICHAELMICFAILURE data */ 807 struct iw_michaelmicfailure 808 { 809 __u32 flags; 810 struct sockaddr src_addr; 811 __u8 tsc[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */ 812 }; 813 814 /* IWEVPMKIDCAND data */ 815 #define IW_PMKID_CAND_PREAUTH 0x00000001 /* RNS pre-authentication enabled */ 816 struct iw_pmkid_cand 817 { 818 __u32 flags; /* IW_PMKID_CAND_* */ 819 __u32 index; /* the smaller the index, the higher the 820 * priority */ 821 struct sockaddr bssid; 822 }; 823 824 /* ------------------------ WIRELESS STATS ------------------------ */ 825 /* 826 * Wireless statistics (used for /proc/net/wireless) 827 */ 828 struct iw_statistics 829 { 830 __u16 status; /* Status 831 * - device dependent for now */ 832 833 struct iw_quality qual; /* Quality of the link 834 * (instant/mean/max) */ 835 struct iw_discarded discard; /* Packet discarded counts */ 836 struct iw_missed miss; /* Packet missed counts */ 837 }; 838 839 /* ------------------------ IOCTL REQUEST ------------------------ */ 840 /* 841 * This structure defines the payload of an ioctl, and is used 842 * below. 843 * 844 * Note that this structure should fit on the memory footprint 845 * of iwreq (which is the same as ifreq), which mean a max size of 846 * 16 octets = 128 bits. Warning, pointers might be 64 bits wide... 847 * You should check this when increasing the structures defined 848 * above in this file... 849 */ 850 union iwreq_data 851 { 852 /* Config - generic */ 853 char name[IFNAMSIZ]; 854 /* Name : used to verify the presence of wireless extensions. 855 * Name of the protocol/provider... */ 856 857 struct iw_point essid; /* Extended network name */ 858 struct iw_param nwid; /* network id (or domain - the cell) */ 859 struct iw_freq freq; /* frequency or channel : 860 * 0-1000 = channel 861 * > 1000 = frequency in Hz */ 862 863 struct iw_param sens; /* signal level threshold */ 864 struct iw_param bitrate; /* default bit rate */ 865 struct iw_param txpower; /* default transmit power */ 866 struct iw_param rts; /* RTS threshold threshold */ 867 struct iw_param frag; /* Fragmentation threshold */ 868 __u32 mode; /* Operation mode */ 869 struct iw_param retry; /* Retry limits & lifetime */ 870 871 struct iw_point encoding; /* Encoding stuff : tokens */ 872 struct iw_param power; /* PM duration/timeout */ 873 struct iw_quality qual; /* Quality part of statistics */ 874 875 struct sockaddr ap_addr; /* Access point address */ 876 struct sockaddr addr; /* Destination address (hw/mac) */ 877 878 struct iw_param param; /* Other small parameters */ 879 struct iw_point data; /* Other large parameters */ 880 }; 881 882 /* 883 * The structure to exchange data for ioctl. 884 * This structure is the same as 'struct ifreq', but (re)defined for 885 * convenience... 886 * Do I need to remind you about structure size (32 octets) ? 887 */ 888 struct iwreq 889 { 890 union 891 { 892 char ifrn_name[IFNAMSIZ]; /* if name, e.g. "eth0" */ 893 } ifr_ifrn; 894 895 /* Data part (defined just above) */ 896 union iwreq_data u; 897 }; 898 899 /* -------------------------- IOCTL DATA -------------------------- */ 900 /* 901 * For those ioctl which want to exchange mode data that what could 902 * fit in the above structure... 903 */ 904 905 /* 906 * Range of parameters 907 */ 908 909 struct iw_range 910 { 911 /* Informative stuff (to choose between different interface) */ 912 __u32 throughput; /* To give an idea... */ 913 /* In theory this value should be the maximum benchmarked 914 * TCP/IP throughput, because with most of these devices the 915 * bit rate is meaningless (overhead an co) to estimate how 916 * fast the connection will go and pick the fastest one. 917 * I suggest people to play with Netperf or any benchmark... 918 */ 919 920 /* NWID (or domain id) */ 921 __u32 min_nwid; /* Minimal NWID we are able to set */ 922 __u32 max_nwid; /* Maximal NWID we are able to set */ 923 924 /* Old Frequency (backward compat - moved lower ) */ 925 __u16 old_num_channels; 926 __u8 old_num_frequency; 927 928 /* Wireless event capability bitmasks */ 929 __u32 event_capa[6]; 930 931 /* signal level threshold range */ 932 __s32 sensitivity; 933 934 /* Quality of link & SNR stuff */ 935 /* Quality range (link, level, noise) 936 * If the quality is absolute, it will be in the range [0 ; max_qual], 937 * if the quality is dBm, it will be in the range [max_qual ; 0]. 938 * Don't forget that we use 8 bit arithmetics... */ 939 struct iw_quality max_qual; /* Quality of the link */ 940 /* This should contain the average/typical values of the quality 941 * indicator. This should be the threshold between a "good" and 942 * a "bad" link (example : monitor going from green to orange). 943 * Currently, user space apps like quality monitors don't have any 944 * way to calibrate the measurement. With this, they can split 945 * the range between 0 and max_qual in different quality level 946 * (using a geometric subdivision centered on the average). 947 * I expect that people doing the user space apps will feedback 948 * us on which value we need to put in each driver... */ 949 struct iw_quality avg_qual; /* Quality of the link */ 950 951 /* Rates */ 952 __u8 num_bitrates; /* Number of entries in the list */ 953 __s32 bitrate[IW_MAX_BITRATES]; /* list, in bps */ 954 955 /* RTS threshold */ 956 __s32 min_rts; /* Minimal RTS threshold */ 957 __s32 max_rts; /* Maximal RTS threshold */ 958 959 /* Frag threshold */ 960 __s32 min_frag; /* Minimal frag threshold */ 961 __s32 max_frag; /* Maximal frag threshold */ 962 963 /* Power Management duration & timeout */ 964 __s32 min_pmp; /* Minimal PM period */ 965 __s32 max_pmp; /* Maximal PM period */ 966 __s32 min_pmt; /* Minimal PM timeout */ 967 __s32 max_pmt; /* Maximal PM timeout */ 968 __u16 pmp_flags; /* How to decode max/min PM period */ 969 __u16 pmt_flags; /* How to decode max/min PM timeout */ 970 __u16 pm_capa; /* What PM options are supported */ 971 972 /* Encoder stuff */ 973 __u16 encoding_size[IW_MAX_ENCODING_SIZES]; /* Different token sizes */ 974 __u8 num_encoding_sizes; /* Number of entry in the list */ 975 __u8 max_encoding_tokens; /* Max number of tokens */ 976 /* For drivers that need a "login/passwd" form */ 977 __u8 encoding_login_index; /* token index for login token */ 978 979 /* Transmit power */ 980 __u16 txpower_capa; /* What options are supported */ 981 __u8 num_txpower; /* Number of entries in the list */ 982 __s32 txpower[IW_MAX_TXPOWER]; /* list, in bps */ 983 984 /* Wireless Extension version info */ 985 __u8 we_version_compiled; /* Must be WIRELESS_EXT */ 986 __u8 we_version_source; /* Last update of source */ 987 988 /* Retry limits and lifetime */ 989 __u16 retry_capa; /* What retry options are supported */ 990 __u16 retry_flags; /* How to decode max/min retry limit */ 991 __u16 r_time_flags; /* How to decode max/min retry life */ 992 __s32 min_retry; /* Minimal number of retries */ 993 __s32 max_retry; /* Maximal number of retries */ 994 __s32 min_r_time; /* Minimal retry lifetime */ 995 __s32 max_r_time; /* Maximal retry lifetime */ 996 997 /* Frequency */ 998 __u16 num_channels; /* Number of channels [0; num - 1] */ 999 __u8 num_frequency; /* Number of entry in the list */ 1000 struct iw_freq freq[IW_MAX_FREQUENCIES]; /* list */ 1001 /* Note : this frequency list doesn't need to fit channel numbers, 1002 * because each entry contain its channel index */ 1003 1004 __u32 enc_capa; /* IW_ENC_CAPA_* bit field */ 1005 }; 1006 1007 /* 1008 * Private ioctl interface information 1009 */ 1010 1011 struct iw_priv_args 1012 { 1013 __u32 cmd; /* Number of the ioctl to issue */ 1014 __u16 set_args; /* Type and number of args */ 1015 __u16 get_args; /* Type and number of args */ 1016 char name[IFNAMSIZ]; /* Name of the extension */ 1017 }; 1018 1019 /* ----------------------- WIRELESS EVENTS ----------------------- */ 1020 /* 1021 * Wireless events are carried through the rtnetlink socket to user 1022 * space. They are encapsulated in the IFLA_WIRELESS field of 1023 * a RTM_NEWLINK message. 1024 */ 1025 1026 /* 1027 * A Wireless Event. Contains basically the same data as the ioctl... 1028 */ 1029 struct iw_event 1030 { 1031 __u16 len; /* Real lenght of this stuff */ 1032 __u16 cmd; /* Wireless IOCTL */ 1033 union iwreq_data u; /* IOCTL fixed payload */ 1034 }; 1035 1036 /* Size of the Event prefix (including padding and alignement junk) */ 1037 #define IW_EV_LCP_LEN (sizeof(struct iw_event) - sizeof(union iwreq_data)) 1038 /* Size of the various events */ 1039 #define IW_EV_CHAR_LEN (IW_EV_LCP_LEN + IFNAMSIZ) 1040 #define IW_EV_UINT_LEN (IW_EV_LCP_LEN + sizeof(__u32)) 1041 #define IW_EV_FREQ_LEN (IW_EV_LCP_LEN + sizeof(struct iw_freq)) 1042 #define IW_EV_POINT_LEN (IW_EV_LCP_LEN + sizeof(struct iw_point)) 1043 #define IW_EV_PARAM_LEN (IW_EV_LCP_LEN + sizeof(struct iw_param)) 1044 #define IW_EV_ADDR_LEN (IW_EV_LCP_LEN + sizeof(struct sockaddr)) 1045 #define IW_EV_QUAL_LEN (IW_EV_LCP_LEN + sizeof(struct iw_quality)) 1046 1047 /* Note : in the case of iw_point, the extra data will come at the 1048 * end of the event */ 1049 1050 #endif /* _LINUX_WIRELESS_H */ 1051