1/* 2 * This file define a set of standard wireless extensions 3 * 4 * Version : 20 17.2.06 5 * 6 * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com> 7 * Copyright (c) 1997-2006 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#include <linux/types.h> /* for "caddr_t" et al */ 73#include <linux/socket.h> /* for "struct sockaddr" et al */ 74#include <linux/if.h> /* for IFNAMSIZ and co... */ 75 76/***************************** VERSION *****************************/ 77/* 78 * This constant is used to know the availability of the wireless 79 * extensions and to know which version of wireless extensions it is 80 * (there is some stuff that will be added in the future...) 81 * I just plan to increment with each new version. 82 */ 83#define WIRELESS_EXT 20 84 85/* 86 * Changes : 87 * 88 * V2 to V3 89 * -------- 90 * Alan Cox start some incompatibles changes. I've integrated a bit more. 91 * - Encryption renamed to Encode to avoid US regulation problems 92 * - Frequency changed from float to struct to avoid problems on old 386 93 * 94 * V3 to V4 95 * -------- 96 * - Add sensitivity 97 * 98 * V4 to V5 99 * -------- 100 * - Missing encoding definitions in range 101 * - Access points stuff 102 * 103 * V5 to V6 104 * -------- 105 * - 802.11 support (ESSID ioctls) 106 * 107 * V6 to V7 108 * -------- 109 * - define IW_ESSID_MAX_SIZE and IW_MAX_AP 110 * 111 * V7 to V8 112 * -------- 113 * - Changed my e-mail address 114 * - More 802.11 support (nickname, rate, rts, frag) 115 * - List index in frequencies 116 * 117 * V8 to V9 118 * -------- 119 * - Support for 'mode of operation' (ad-hoc, managed...) 120 * - Support for unicast and multicast power saving 121 * - Change encoding to support larger tokens (>64 bits) 122 * - Updated iw_params (disable, flags) and use it for NWID 123 * - Extracted iw_point from iwreq for clarity 124 * 125 * V9 to V10 126 * --------- 127 * - Add PM capability to range structure 128 * - Add PM modifier : MAX/MIN/RELATIVE 129 * - Add encoding option : IW_ENCODE_NOKEY 130 * - Add TxPower ioctls (work like TxRate) 131 * 132 * V10 to V11 133 * ---------- 134 * - Add WE version in range (help backward/forward compatibility) 135 * - Add retry ioctls (work like PM) 136 * 137 * V11 to V12 138 * ---------- 139 * - Add SIOCSIWSTATS to get /proc/net/wireless programatically 140 * - Add DEV PRIVATE IOCTL to avoid collisions in SIOCDEVPRIVATE space 141 * - Add new statistics (frag, retry, beacon) 142 * - Add average quality (for user space calibration) 143 * 144 * V12 to V13 145 * ---------- 146 * - Document creation of new driver API. 147 * - Extract union iwreq_data from struct iwreq (for new driver API). 148 * - Rename SIOCSIWNAME as SIOCSIWCOMMIT 149 * 150 * V13 to V14 151 * ---------- 152 * - Wireless Events support : define struct iw_event 153 * - Define additional specific event numbers 154 * - Add "addr" and "param" fields in union iwreq_data 155 * - AP scanning stuff (SIOCSIWSCAN and friends) 156 * 157 * V14 to V15 158 * ---------- 159 * - Add IW_PRIV_TYPE_ADDR for struct sockaddr private arg 160 * - Make struct iw_freq signed (both m & e), add explicit padding 161 * - Add IWEVCUSTOM for driver specific event/scanning token 162 * - Add IW_MAX_GET_SPY for driver returning a lot of addresses 163 * - Add IW_TXPOW_RANGE for range of Tx Powers 164 * - Add IWEVREGISTERED & IWEVEXPIRED events for Access Points 165 * - Add IW_MODE_MONITOR for passive monitor 166 * 167 * V15 to V16 168 * ---------- 169 * - Increase the number of bitrates in iw_range to 32 (for 802.11g) 170 * - Increase the number of frequencies in iw_range to 32 (for 802.11b+a) 171 * - Reshuffle struct iw_range for increases, add filler 172 * - Increase IW_MAX_AP to 64 for driver returning a lot of addresses 173 * - Remove IW_MAX_GET_SPY because conflict with enhanced spy support 174 * - Add SIOCSIWTHRSPY/SIOCGIWTHRSPY and "struct iw_thrspy" 175 * - Add IW_ENCODE_TEMP and iw_range->encoding_login_index 176 * 177 * V16 to V17 178 * ---------- 179 * - Add flags to frequency -> auto/fixed 180 * - Document (struct iw_quality *)->updated, add new flags (INVALID) 181 * - Wireless Event capability in struct iw_range 182 * - Add support for relative TxPower (yick !) 183 * 184 * V17 to V18 (From Jouni Malinen <jkmaline@cc.hut.fi>) 185 * ---------- 186 * - Add support for WPA/WPA2 187 * - Add extended encoding configuration (SIOCSIWENCODEEXT and 188 * SIOCGIWENCODEEXT) 189 * - Add SIOCSIWGENIE/SIOCGIWGENIE 190 * - Add SIOCSIWMLME 191 * - Add SIOCSIWPMKSA 192 * - Add struct iw_range bit field for supported encoding capabilities 193 * - Add optional scan request parameters for SIOCSIWSCAN 194 * - Add SIOCSIWAUTH/SIOCGIWAUTH for setting authentication and WPA 195 * related parameters (extensible up to 4096 parameter values) 196 * - Add wireless events: IWEVGENIE, IWEVMICHAELMICFAILURE, 197 * IWEVASSOCREQIE, IWEVASSOCRESPIE, IWEVPMKIDCAND 198 * 199 * V18 to V19 200 * ---------- 201 * - Remove (struct iw_point *)->pointer from events and streams 202 * - Remove header includes to help user space 203 * - Increase IW_ENCODING_TOKEN_MAX from 32 to 64 204 * - Add IW_QUAL_ALL_UPDATED and IW_QUAL_ALL_INVALID macros 205 * - Add explicit flag to tell stats are in dBm : IW_QUAL_DBM 206 * - Add IW_IOCTL_IDX() and IW_EVENT_IDX() macros 207 * 208 * V19 to V20 209 * ---------- 210 * - RtNetlink requests support (SET/GET) 211 */ 212 213/**************************** CONSTANTS ****************************/ 214 215/* -------------------------- IOCTL LIST -------------------------- */ 216 217/* Wireless Identification */ 218#define SIOCSIWCOMMIT 0x8B00 /* Commit pending changes to driver */ 219#define SIOCGIWNAME 0x8B01 /* get name == wireless protocol */ 220/* SIOCGIWNAME is used to verify the presence of Wireless Extensions. 221 * Common values : "IEEE 802.11-DS", "IEEE 802.11-FH", "IEEE 802.11b"... 222 * Don't put the name of your driver there, it's useless. */ 223 224/* Basic operations */ 225#define SIOCSIWNWID 0x8B02 /* set network id (pre-802.11) */ 226#define SIOCGIWNWID 0x8B03 /* get network id (the cell) */ 227#define SIOCSIWFREQ 0x8B04 /* set channel/frequency (Hz) */ 228#define SIOCGIWFREQ 0x8B05 /* get channel/frequency (Hz) */ 229#define SIOCSIWMODE 0x8B06 /* set operation mode */ 230#define SIOCGIWMODE 0x8B07 /* get operation mode */ 231#define SIOCSIWSENS 0x8B08 /* set sensitivity (dBm) */ 232#define SIOCGIWSENS 0x8B09 /* get sensitivity (dBm) */ 233 234/* Informative stuff */ 235#define SIOCSIWRANGE 0x8B0A /* Unused */ 236#define SIOCGIWRANGE 0x8B0B /* Get range of parameters */ 237#define SIOCSIWPRIV 0x8B0C /* Unused */ 238#define SIOCGIWPRIV 0x8B0D /* get private ioctl interface info */ 239#define SIOCSIWSTATS 0x8B0E /* Unused */ 240#define SIOCGIWSTATS 0x8B0F /* Get /proc/net/wireless stats */ 241/* SIOCGIWSTATS is strictly used between user space and the kernel, and 242 * is never passed to the driver (i.e. the driver will never see it). */ 243 244/* Spy support (statistics per MAC address - used for Mobile IP support) */ 245#define SIOCSIWSPY 0x8B10 /* set spy addresses */ 246#define SIOCGIWSPY 0x8B11 /* get spy info (quality of link) */ 247#define SIOCSIWTHRSPY 0x8B12 /* set spy threshold (spy event) */ 248#define SIOCGIWTHRSPY 0x8B13 /* get spy threshold */ 249 250/* Access Point manipulation */ 251#define SIOCSIWAP 0x8B14 /* set access point MAC addresses */ 252#define SIOCGIWAP 0x8B15 /* get access point MAC addresses */ 253#define SIOCGIWAPLIST 0x8B17 /* Deprecated in favor of scanning */ 254#define SIOCSIWSCAN 0x8B18 /* trigger scanning (list cells) */ 255#define SIOCGIWSCAN 0x8B19 /* get scanning results */ 256 257/* 802.11 specific support */ 258#define SIOCSIWESSID 0x8B1A /* set ESSID (network name) */ 259#define SIOCGIWESSID 0x8B1B /* get ESSID */ 260#define SIOCSIWNICKN 0x8B1C /* set node name/nickname */ 261#define SIOCGIWNICKN 0x8B1D /* get node name/nickname */ 262/* As the ESSID and NICKN are strings up to 32 bytes long, it doesn't fit 263 * within the 'iwreq' structure, so we need to use the 'data' member to 264 * point to a string in user space, like it is done for RANGE... */ 265 266/* Other parameters useful in 802.11 and some other devices */ 267#define SIOCSIWRATE 0x8B20 /* set default bit rate (bps) */ 268#define SIOCGIWRATE 0x8B21 /* get default bit rate (bps) */ 269#define SIOCSIWRTS 0x8B22 /* set RTS/CTS threshold (bytes) */ 270#define SIOCGIWRTS 0x8B23 /* get RTS/CTS threshold (bytes) */ 271#define SIOCSIWFRAG 0x8B24 /* set fragmentation thr (bytes) */ 272#define SIOCGIWFRAG 0x8B25 /* get fragmentation thr (bytes) */ 273#define SIOCSIWTXPOW 0x8B26 /* set transmit power (dBm) */ 274#define SIOCGIWTXPOW 0x8B27 /* get transmit power (dBm) */ 275#define SIOCSIWRETRY 0x8B28 /* set retry limits and lifetime */ 276#define SIOCGIWRETRY 0x8B29 /* get retry limits and lifetime */ 277 278/* Encoding stuff (scrambling, hardware security, WEP...) */ 279#define SIOCSIWENCODE 0x8B2A /* set encoding token & mode */ 280#define SIOCGIWENCODE 0x8B2B /* get encoding token & mode */ 281/* Power saving stuff (power management, unicast and multicast) */ 282#define SIOCSIWPOWER 0x8B2C /* set Power Management settings */ 283#define SIOCGIWPOWER 0x8B2D /* get Power Management settings */ 284 285/* WPA : Generic IEEE 802.11 informatiom element (e.g., for WPA/RSN/WMM). 286 * This ioctl uses struct iw_point and data buffer that includes IE id and len 287 * fields. More than one IE may be included in the request. Setting the generic 288 * IE to empty buffer (len=0) removes the generic IE from the driver. Drivers 289 * are allowed to generate their own WPA/RSN IEs, but in these cases, drivers 290 * are required to report the used IE as a wireless event, e.g., when 291 * associating with an AP. */ 292#define SIOCSIWGENIE 0x8B30 /* set generic IE */ 293#define SIOCGIWGENIE 0x8B31 /* get generic IE */ 294 295/* WPA : IEEE 802.11 MLME requests */ 296#define SIOCSIWMLME 0x8B16 /* request MLME operation; uses 297 * struct iw_mlme */ 298/* WPA : Authentication mode parameters */ 299#define SIOCSIWAUTH 0x8B32 /* set authentication mode params */ 300#define SIOCGIWAUTH 0x8B33 /* get authentication mode params */ 301 302/* WPA : Extended version of encoding configuration */ 303#define SIOCSIWENCODEEXT 0x8B34 /* set encoding token & mode */ 304#define SIOCGIWENCODEEXT 0x8B35 /* get encoding token & mode */ 305 306/* WPA2 : PMKSA cache management */ 307#define SIOCSIWPMKSA 0x8B36 /* PMKSA cache operation */ 308 309/* -------------------- DEV PRIVATE IOCTL LIST -------------------- */ 310 311/* These 32 ioctl are wireless device private, for 16 commands. 312 * Each driver is free to use them for whatever purpose it chooses, 313 * however the driver *must* export the description of those ioctls 314 * with SIOCGIWPRIV and *must* use arguments as defined below. 315 * If you don't follow those rules, DaveM is going to hate you (reason : 316 * it make mixed 32/64bit operation impossible). 317 */ 318#define SIOCIWFIRSTPRIV 0x8BE0 319#define SIOCIWLASTPRIV 0x8BFF 320/* Previously, we were using SIOCDEVPRIVATE, but we now have our 321 * separate range because of collisions with other tools such as 322 * 'mii-tool'. 323 * We now have 32 commands, so a bit more space ;-). 324 * Also, all 'odd' commands are only usable by root and don't return the 325 * content of ifr/iwr to user (but you are not obliged to use the set/get 326 * convention, just use every other two command). More details in iwpriv.c. 327 * And I repeat : you are not forced to use them with iwpriv, but you 328 * must be compliant with it. 329 */ 330 331/* ------------------------- IOCTL STUFF ------------------------- */ 332 333/* The first and the last (range) */ 334#define SIOCIWFIRST 0x8B00 335#define SIOCIWLAST SIOCIWLASTPRIV /* 0x8BFF */ 336#define IW_IOCTL_IDX(cmd) ((cmd) - SIOCIWFIRST) 337 338/* Even : get (world access), odd : set (root access) */ 339#define IW_IS_SET(cmd) (!((cmd) & 0x1)) 340#define IW_IS_GET(cmd) ((cmd) & 0x1) 341 342/* ----------------------- WIRELESS EVENTS ----------------------- */ 343/* Those are *NOT* ioctls, do not issue request on them !!! */ 344/* Most events use the same identifier as ioctl requests */ 345 346#define IWEVTXDROP 0x8C00 /* Packet dropped to excessive retry */ 347#define IWEVQUAL 0x8C01 /* Quality part of statistics (scan) */ 348#define IWEVCUSTOM 0x8C02 /* Driver specific ascii string */ 349#define IWEVREGISTERED 0x8C03 /* Discovered a new node (AP mode) */ 350#define IWEVEXPIRED 0x8C04 /* Expired a node (AP mode) */ 351#define IWEVGENIE 0x8C05 /* Generic IE (WPA, RSN, WMM, ..) 352 * (scan results); This includes id and 353 * length fields. One IWEVGENIE may 354 * contain more than one IE. Scan 355 * results may contain one or more 356 * IWEVGENIE events. */ 357#define IWEVMICHAELMICFAILURE 0x8C06 /* Michael MIC failure 358 * (struct iw_michaelmicfailure) 359 */ 360#define IWEVASSOCREQIE 0x8C07 /* IEs used in (Re)Association Request. 361 * The data includes id and length 362 * fields and may contain more than one 363 * IE. This event is required in 364 * Managed mode if the driver 365 * generates its own WPA/RSN IE. This 366 * should be sent just before 367 * IWEVREGISTERED event for the 368 * association. */ 369#define IWEVASSOCRESPIE 0x8C08 /* IEs used in (Re)Association 370 * Response. The data includes id and 371 * length fields and may contain more 372 * than one IE. This may be sent 373 * between IWEVASSOCREQIE and 374 * IWEVREGISTERED events for the 375 * association. */ 376#define IWEVPMKIDCAND 0x8C09 /* PMKID candidate for RSN 377 * pre-authentication 378 * (struct iw_pmkid_cand) */ 379 380#define IWEVFIRST 0x8C00 381#define IW_EVENT_IDX(cmd) ((cmd) - IWEVFIRST) 382 383/* ------------------------- PRIVATE INFO ------------------------- */ 384/* 385 * The following is used with SIOCGIWPRIV. It allow a driver to define 386 * the interface (name, type of data) for its private ioctl. 387 * Privates ioctl are SIOCIWFIRSTPRIV -> SIOCIWLASTPRIV 388 */ 389 390#define IW_PRIV_TYPE_MASK 0x7000 /* Type of arguments */ 391#define IW_PRIV_TYPE_NONE 0x0000 392#define IW_PRIV_TYPE_BYTE 0x1000 /* Char as number */ 393#define IW_PRIV_TYPE_CHAR 0x2000 /* Char as character */ 394#define IW_PRIV_TYPE_INT 0x4000 /* 32 bits int */ 395#define IW_PRIV_TYPE_FLOAT 0x5000 /* struct iw_freq */ 396#define IW_PRIV_TYPE_ADDR 0x6000 /* struct sockaddr */ 397 398#define IW_PRIV_SIZE_FIXED 0x0800 /* Variable or fixed number of args */ 399 400#define IW_PRIV_SIZE_MASK 0x07FF /* Max number of those args */ 401 402/* 403 * Note : if the number of args is fixed and the size < 16 octets, 404 * instead of passing a pointer we will put args in the iwreq struct... 405 */ 406 407/* ----------------------- OTHER CONSTANTS ----------------------- */ 408 409/* Maximum frequencies in the range struct */ 410#define IW_MAX_FREQUENCIES 32 411/* Note : if you have something like 80 frequencies, 412 * don't increase this constant and don't fill the frequency list. 413 * The user will be able to set by channel anyway... */ 414 415/* Maximum bit rates in the range struct */ 416#define IW_MAX_BITRATES 32 417 418/* Maximum tx powers in the range struct */ 419#define IW_MAX_TXPOWER 8 420/* Note : if you more than 8 TXPowers, just set the max and min or 421 * a few of them in the struct iw_range. */ 422 423/* Maximum of address that you may set with SPY */ 424#define IW_MAX_SPY 8 425 426/* Maximum of address that you may get in the 427 list of access points in range */ 428#define IW_MAX_AP 64 429 430/* Maximum size of the ESSID and NICKN strings */ 431#define IW_ESSID_MAX_SIZE 32 432 433/* Modes of operation */ 434#define IW_MODE_AUTO 0 /* Let the driver decides */ 435#define IW_MODE_ADHOC 1 /* Single cell network */ 436#define IW_MODE_INFRA 2 /* Multi cell network, roaming, ... */ 437#define IW_MODE_MASTER 3 /* Synchronisation master or Access Point */ 438#define IW_MODE_REPEAT 4 /* Wireless Repeater (forwarder) */ 439#define IW_MODE_SECOND 5 /* Secondary master/repeater (backup) */ 440#define IW_MODE_MONITOR 6 /* Passive monitor (listen only) */ 441 442/* Statistics flags (bitmask in updated) */ 443#define IW_QUAL_QUAL_UPDATED 0x01 /* Value was updated since last read */ 444#define IW_QUAL_LEVEL_UPDATED 0x02 445#define IW_QUAL_NOISE_UPDATED 0x04 446#define IW_QUAL_ALL_UPDATED 0x07 447#define IW_QUAL_DBM 0x08 /* Level + Noise are dBm */ 448#define IW_QUAL_QUAL_INVALID 0x10 /* Driver doesn't provide value */ 449#define IW_QUAL_LEVEL_INVALID 0x20 450#define IW_QUAL_NOISE_INVALID 0x40 451#define IW_QUAL_ALL_INVALID 0x70 452 453/* Frequency flags */ 454#define IW_FREQ_AUTO 0x00 /* Let the driver decides */ 455#define IW_FREQ_FIXED 0x01 /* Force a specific value */ 456 457/* Maximum number of size of encoding token available 458 * they are listed in the range structure */ 459#define IW_MAX_ENCODING_SIZES 8 460 461/* Maximum size of the encoding token in bytes */ 462#define IW_ENCODING_TOKEN_MAX 64 /* 512 bits (for now) */ 463 464/* Flags for encoding (along with the token) */ 465#define IW_ENCODE_INDEX 0x00FF /* Token index (if needed) */ 466#define IW_ENCODE_FLAGS 0xFF00 /* Flags defined below */ 467#define IW_ENCODE_MODE 0xF000 /* Modes defined below */ 468#define IW_ENCODE_DISABLED 0x8000 /* Encoding disabled */ 469#define IW_ENCODE_ENABLED 0x0000 /* Encoding enabled */ 470#define IW_ENCODE_RESTRICTED 0x4000 /* Refuse non-encoded packets */ 471#define IW_ENCODE_OPEN 0x2000 /* Accept non-encoded packets */ 472#define IW_ENCODE_NOKEY 0x0800 /* Key is write only, so not present */ 473#define IW_ENCODE_TEMP 0x0400 /* Temporary key */ 474 475/* Power management flags available (along with the value, if any) */ 476#define IW_POWER_ON 0x0000 /* No details... */ 477#define IW_POWER_TYPE 0xF000 /* Type of parameter */ 478#define IW_POWER_PERIOD 0x1000 /* Value is a period/duration of */ 479#define IW_POWER_TIMEOUT 0x2000 /* Value is a timeout (to go asleep) */ 480#define IW_POWER_MODE 0x0F00 /* Power Management mode */ 481#define IW_POWER_UNICAST_R 0x0100 /* Receive only unicast messages */ 482#define IW_POWER_MULTICAST_R 0x0200 /* Receive only multicast messages */ 483#define IW_POWER_ALL_R 0x0300 /* Receive all messages though PM */ 484#define IW_POWER_FORCE_S 0x0400 /* Force PM procedure for sending unicast */ 485#define IW_POWER_REPEATER 0x0800 /* Repeat broadcast messages in PM period */ 486#define IW_POWER_MODIFIER 0x000F /* Modify a parameter */ 487#define IW_POWER_MIN 0x0001 /* Value is a minimum */ 488#define IW_POWER_MAX 0x0002 /* Value is a maximum */ 489#define IW_POWER_RELATIVE 0x0004 /* Value is not in seconds/ms/us */ 490 491/* Transmit Power flags available */ 492#define IW_TXPOW_TYPE 0x00FF /* Type of value */ 493#define IW_TXPOW_DBM 0x0000 /* Value is in dBm */ 494#define IW_TXPOW_MWATT 0x0001 /* Value is in mW */ 495#define IW_TXPOW_RELATIVE 0x0002 /* Value is in arbitrary units */ 496#define IW_TXPOW_RANGE 0x1000 /* Range of value between min/max */ 497 498/* Retry limits and lifetime flags available */ 499#define IW_RETRY_ON 0x0000 /* No details... */ 500#define IW_RETRY_TYPE 0xF000 /* Type of parameter */ 501#define IW_RETRY_LIMIT 0x1000 /* Maximum number of retries*/ 502#define IW_RETRY_LIFETIME 0x2000 /* Maximum duration of retries in us */ 503#define IW_RETRY_MODIFIER 0x000F /* Modify a parameter */ 504#define IW_RETRY_MIN 0x0001 /* Value is a minimum */ 505#define IW_RETRY_MAX 0x0002 /* Value is a maximum */ 506#define IW_RETRY_RELATIVE 0x0004 /* Value is not in seconds/ms/us */ 507 508/* Scanning request flags */ 509#define IW_SCAN_DEFAULT 0x0000 /* Default scan of the driver */ 510#define IW_SCAN_ALL_ESSID 0x0001 /* Scan all ESSIDs */ 511#define IW_SCAN_THIS_ESSID 0x0002 /* Scan only this ESSID */ 512#define IW_SCAN_ALL_FREQ 0x0004 /* Scan all Frequencies */ 513#define IW_SCAN_THIS_FREQ 0x0008 /* Scan only this Frequency */ 514#define IW_SCAN_ALL_MODE 0x0010 /* Scan all Modes */ 515#define IW_SCAN_THIS_MODE 0x0020 /* Scan only this Mode */ 516#define IW_SCAN_ALL_RATE 0x0040 /* Scan all Bit-Rates */ 517#define IW_SCAN_THIS_RATE 0x0080 /* Scan only this Bit-Rate */ 518/* struct iw_scan_req scan_type */ 519#define IW_SCAN_TYPE_ACTIVE 0 520#define IW_SCAN_TYPE_PASSIVE 1 521/* Maximum size of returned data */ 522#define IW_SCAN_MAX_DATA 4096 /* In bytes */ 523 524/* Max number of char in custom event - use multiple of them if needed */ 525#define IW_CUSTOM_MAX 256 /* In bytes */ 526 527/* Generic information element */ 528#define IW_GENERIC_IE_MAX 1024 529 530/* MLME requests (SIOCSIWMLME / struct iw_mlme) */ 531#define IW_MLME_DEAUTH 0 532#define IW_MLME_DISASSOC 1 533 534/* SIOCSIWAUTH/SIOCGIWAUTH struct iw_param flags */ 535#define IW_AUTH_INDEX 0x0FFF 536#define IW_AUTH_FLAGS 0xF000 537/* SIOCSIWAUTH/SIOCGIWAUTH parameters (0 .. 4095) 538 * (IW_AUTH_INDEX mask in struct iw_param flags; this is the index of the 539 * parameter that is being set/get to; value will be read/written to 540 * struct iw_param value field) */ 541#define IW_AUTH_WPA_VERSION 0 542#define IW_AUTH_CIPHER_PAIRWISE 1 543#define IW_AUTH_CIPHER_GROUP 2 544#define IW_AUTH_KEY_MGMT 3 545#define IW_AUTH_TKIP_COUNTERMEASURES 4 546#define IW_AUTH_DROP_UNENCRYPTED 5 547#define IW_AUTH_80211_AUTH_ALG 6 548#define IW_AUTH_WPA_ENABLED 7 549#define IW_AUTH_RX_UNENCRYPTED_EAPOL 8 550#define IW_AUTH_ROAMING_CONTROL 9 551#define IW_AUTH_PRIVACY_INVOKED 10 552 553/* IW_AUTH_WPA_VERSION values (bit field) */ 554#define IW_AUTH_WPA_VERSION_DISABLED 0x00000001 555#define IW_AUTH_WPA_VERSION_WPA 0x00000002 556#define IW_AUTH_WPA_VERSION_WPA2 0x00000004 557 558/* IW_AUTH_PAIRWISE_CIPHER and IW_AUTH_GROUP_CIPHER values (bit field) */ 559#define IW_AUTH_CIPHER_NONE 0x00000001 560#define IW_AUTH_CIPHER_WEP40 0x00000002 561#define IW_AUTH_CIPHER_TKIP 0x00000004 562#define IW_AUTH_CIPHER_CCMP 0x00000008 563#define IW_AUTH_CIPHER_WEP104 0x00000010 564 565/* IW_AUTH_KEY_MGMT values (bit field) */ 566#define IW_AUTH_KEY_MGMT_802_1X 1 567#define IW_AUTH_KEY_MGMT_PSK 2 568 569/* IW_AUTH_80211_AUTH_ALG values (bit field) */ 570#define IW_AUTH_ALG_OPEN_SYSTEM 0x00000001 571#define IW_AUTH_ALG_SHARED_KEY 0x00000002 572#define IW_AUTH_ALG_LEAP 0x00000004 573 574/* IW_AUTH_ROAMING_CONTROL values */ 575#define IW_AUTH_ROAMING_ENABLE 0 /* driver/firmware based roaming */ 576#define IW_AUTH_ROAMING_DISABLE 1 /* user space program used for roaming 577 * control */ 578 579/* SIOCSIWENCODEEXT definitions */ 580#define IW_ENCODE_SEQ_MAX_SIZE 8 581/* struct iw_encode_ext ->alg */ 582#define IW_ENCODE_ALG_NONE 0 583#define IW_ENCODE_ALG_WEP 1 584#define IW_ENCODE_ALG_TKIP 2 585#define IW_ENCODE_ALG_CCMP 3 586/* struct iw_encode_ext ->ext_flags */ 587#define IW_ENCODE_EXT_TX_SEQ_VALID 0x00000001 588#define IW_ENCODE_EXT_RX_SEQ_VALID 0x00000002 589#define IW_ENCODE_EXT_GROUP_KEY 0x00000004 590#define IW_ENCODE_EXT_SET_TX_KEY 0x00000008 591 592/* IWEVMICHAELMICFAILURE : struct iw_michaelmicfailure ->flags */ 593#define IW_MICFAILURE_KEY_ID 0x00000003 /* Key ID 0..3 */ 594#define IW_MICFAILURE_GROUP 0x00000004 595#define IW_MICFAILURE_PAIRWISE 0x00000008 596#define IW_MICFAILURE_STAKEY 0x00000010 597#define IW_MICFAILURE_COUNT 0x00000060 /* 1 or 2 (0 = count not supported) 598 */ 599 600/* Bit field values for enc_capa in struct iw_range */ 601#define IW_ENC_CAPA_WPA 0x00000001 602#define IW_ENC_CAPA_WPA2 0x00000002 603#define IW_ENC_CAPA_CIPHER_TKIP 0x00000004 604#define IW_ENC_CAPA_CIPHER_CCMP 0x00000008 605 606/* Event capability macros - in (struct iw_range *)->event_capa 607 * Because we have more than 32 possible events, we use an array of 608 * 32 bit bitmasks. Note : 32 bits = 0x20 = 2^5. */ 609#define IW_EVENT_CAPA_BASE(cmd) ((cmd >= SIOCIWFIRSTPRIV) ? \ 610 (cmd - SIOCIWFIRSTPRIV + 0x60) : \ 611 (cmd - SIOCSIWCOMMIT)) 612#define IW_EVENT_CAPA_INDEX(cmd) (IW_EVENT_CAPA_BASE(cmd) >> 5) 613#define IW_EVENT_CAPA_MASK(cmd) (1 << (IW_EVENT_CAPA_BASE(cmd) & 0x1F)) 614/* Event capability constants - event autogenerated by the kernel 615 * This list is valid for most 802.11 devices, customise as needed... */ 616#define IW_EVENT_CAPA_K_0 (IW_EVENT_CAPA_MASK(0x8B04) | \ 617 IW_EVENT_CAPA_MASK(0x8B06) | \ 618 IW_EVENT_CAPA_MASK(0x8B1A)) 619#define IW_EVENT_CAPA_K_1 (IW_EVENT_CAPA_MASK(0x8B2A)) 620/* "Easy" macro to set events in iw_range (less efficient) */ 621#define IW_EVENT_CAPA_SET(event_capa, cmd) (event_capa[IW_EVENT_CAPA_INDEX(cmd)] |= IW_EVENT_CAPA_MASK(cmd)) 622#define IW_EVENT_CAPA_SET_KERNEL(event_capa) {event_capa[0] |= IW_EVENT_CAPA_K_0; event_capa[1] |= IW_EVENT_CAPA_K_1; } 623 624 625/****************************** TYPES ******************************/ 626 627/* --------------------------- SUBTYPES --------------------------- */ 628/* 629 * Generic format for most parameters that fit in an int 630 */ 631struct iw_param 632{ 633 __s32 value; /* The value of the parameter itself */ 634 __u8 fixed; /* Hardware should not use auto select */ 635 __u8 disabled; /* Disable the feature */ 636 __u16 flags; /* Various specifc flags (if any) */ 637}; 638 639/* 640 * For all data larger than 16 octets, we need to use a 641 * pointer to memory allocated in user space. 642 */ 643struct iw_point 644{ 645 void __user *pointer; /* Pointer to the data (in user space) */ 646 __u16 length; /* number of fields or size in bytes */ 647 __u16 flags; /* Optional params */ 648}; 649 650/* 651 * A frequency 652 * For numbers lower than 10^9, we encode the number in 'm' and 653 * set 'e' to 0 654 * For number greater than 10^9, we divide it by the lowest power 655 * of 10 to get 'm' lower than 10^9, with 'm'= f / (10^'e')... 656 * The power of 10 is in 'e', the result of the division is in 'm'. 657 */ 658struct iw_freq 659{ 660 __s32 m; /* Mantissa */ 661 __s16 e; /* Exponent */ 662 __u8 i; /* List index (when in range struct) */ 663 __u8 flags; /* Flags (fixed/auto) */ 664}; 665 666/* 667 * Quality of the link 668 */ 669struct iw_quality 670{ 671 __u8 qual; /* link quality (%retries, SNR, 672 %missed beacons or better...) */ 673 __u8 level; /* signal level (dBm) */ 674 __u8 noise; /* noise level (dBm) */ 675 __u8 updated; /* Flags to know if updated */ 676}; 677 678/* 679 * Packet discarded in the wireless adapter due to 680 * "wireless" specific problems... 681 * Note : the list of counter and statistics in net_device_stats 682 * is already pretty exhaustive, and you should use that first. 683 * This is only additional stats... 684 */ 685struct iw_discarded 686{ 687 __u32 nwid; /* Rx : Wrong nwid/essid */ 688 __u32 code; /* Rx : Unable to code/decode (WEP) */ 689 __u32 fragment; /* Rx : Can't perform MAC reassembly */ 690 __u32 retries; /* Tx : Max MAC retries num reached */ 691 __u32 misc; /* Others cases */ 692}; 693 694/* 695 * Packet/Time period missed in the wireless adapter due to 696 * "wireless" specific problems... 697 */ 698struct iw_missed 699{ 700 __u32 beacon; /* Missed beacons/superframe */ 701}; 702 703/* 704 * Quality range (for spy threshold) 705 */ 706struct iw_thrspy 707{ 708 struct sockaddr addr; /* Source address (hw/mac) */ 709 struct iw_quality qual; /* Quality of the link */ 710 struct iw_quality low; /* Low threshold */ 711 struct iw_quality high; /* High threshold */ 712}; 713 714/* 715 * Optional data for scan request 716 * 717 * Note: these optional parameters are controlling parameters for the 718 * scanning behavior, these do not apply to getting scan results 719 * (SIOCGIWSCAN). Drivers are expected to keep a local BSS table and 720 * provide a merged results with all BSSes even if the previous scan 721 * request limited scanning to a subset, e.g., by specifying an SSID. 722 * Especially, scan results are required to include an entry for the 723 * current BSS if the driver is in Managed mode and associated with an AP. 724 */ 725struct iw_scan_req 726{ 727 __u8 scan_type; /* IW_SCAN_TYPE_{ACTIVE,PASSIVE} */ 728 __u8 essid_len; 729 __u8 num_channels; /* num entries in channel_list; 730 * 0 = scan all allowed channels */ 731 __u8 flags; /* reserved as padding; use zero, this may 732 * be used in the future for adding flags 733 * to request different scan behavior */ 734 struct sockaddr bssid; /* ff:ff:ff:ff:ff:ff for broadcast BSSID or 735 * individual address of a specific BSS */ 736 737 /* 738 * Use this ESSID if IW_SCAN_THIS_ESSID flag is used instead of using 739 * the current ESSID. This allows scan requests for specific ESSID 740 * without having to change the current ESSID and potentially breaking 741 * the current association. 742 */ 743 __u8 essid[IW_ESSID_MAX_SIZE]; 744 745 /* 746 * Optional parameters for changing the default scanning behavior. 747 * These are based on the MLME-SCAN.request from IEEE Std 802.11. 748 * TU is 1.024 ms. If these are set to 0, driver is expected to use 749 * reasonable default values. min_channel_time defines the time that 750 * will be used to wait for the first reply on each channel. If no 751 * replies are received, next channel will be scanned after this. If 752 * replies are received, total time waited on the channel is defined by 753 * max_channel_time. 754 */ 755 __u32 min_channel_time; /* in TU */ 756 __u32 max_channel_time; /* in TU */ 757 758 struct iw_freq channel_list[IW_MAX_FREQUENCIES]; 759}; 760 761/* ------------------------- WPA SUPPORT ------------------------- */ 762 763/* 764 * Extended data structure for get/set encoding (this is used with 765 * SIOCSIWENCODEEXT/SIOCGIWENCODEEXT. struct iw_point and IW_ENCODE_* 766 * flags are used in the same way as with SIOCSIWENCODE/SIOCGIWENCODE and 767 * only the data contents changes (key data -> this structure, including 768 * key data). 769 * 770 * If the new key is the first group key, it will be set as the default 771 * TX key. Otherwise, default TX key index is only changed if 772 * IW_ENCODE_EXT_SET_TX_KEY flag is set. 773 * 774 * Key will be changed with SIOCSIWENCODEEXT in all cases except for 775 * special "change TX key index" operation which is indicated by setting 776 * key_len = 0 and ext_flags |= IW_ENCODE_EXT_SET_TX_KEY. 777 * 778 * tx_seq/rx_seq are only used when respective 779 * IW_ENCODE_EXT_{TX,RX}_SEQ_VALID flag is set in ext_flags. Normal 780 * TKIP/CCMP operation is to set RX seq with SIOCSIWENCODEEXT and start 781 * TX seq from zero whenever key is changed. SIOCGIWENCODEEXT is normally 782 * used only by an Authenticator (AP or an IBSS station) to get the 783 * current TX sequence number. Using TX_SEQ_VALID for SIOCSIWENCODEEXT and 784 * RX_SEQ_VALID for SIOCGIWENCODEEXT are optional, but can be useful for 785 * debugging/testing. 786 */ 787struct iw_encode_ext 788{ 789 __u32 ext_flags; /* IW_ENCODE_EXT_* */ 790 __u8 tx_seq[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */ 791 __u8 rx_seq[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */ 792 struct sockaddr addr; /* ff:ff:ff:ff:ff:ff for broadcast/multicast 793 * (group) keys or unicast address for 794 * individual keys */ 795 __u16 alg; /* IW_ENCODE_ALG_* */ 796 __u16 key_len; 797 __u8 key[0]; 798}; 799 800/* SIOCSIWMLME data */ 801struct iw_mlme 802{ 803 __u16 cmd; /* IW_MLME_* */ 804 __u16 reason_code; 805 struct sockaddr addr; 806}; 807 808/* SIOCSIWPMKSA data */ 809#define IW_PMKSA_ADD 1 810#define IW_PMKSA_REMOVE 2 811#define IW_PMKSA_FLUSH 3 812 813#define IW_PMKID_LEN 16 814 815struct iw_pmksa 816{ 817 __u32 cmd; /* IW_PMKSA_* */ 818 struct sockaddr bssid; 819 __u8 pmkid[IW_PMKID_LEN]; 820}; 821 822/* IWEVMICHAELMICFAILURE data */ 823struct iw_michaelmicfailure 824{ 825 __u32 flags; 826 struct sockaddr src_addr; 827 __u8 tsc[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */ 828}; 829 830/* IWEVPMKIDCAND data */ 831#define IW_PMKID_CAND_PREAUTH 0x00000001 /* RNS pre-authentication enabled */ 832struct iw_pmkid_cand 833{ 834 __u32 flags; /* IW_PMKID_CAND_* */ 835 __u32 index; /* the smaller the index, the higher the 836 * priority */ 837 struct sockaddr bssid; 838}; 839 840/* ------------------------ WIRELESS STATS ------------------------ */ 841/* 842 * Wireless statistics (used for /proc/net/wireless) 843 */ 844struct iw_statistics 845{ 846 __u16 status; /* Status 847 * - device dependent for now */ 848 849 struct iw_quality qual; /* Quality of the link 850 * (instant/mean/max) */ 851 struct iw_discarded discard; /* Packet discarded counts */ 852 struct iw_missed miss; /* Packet missed counts */ 853}; 854 855/* ------------------------ IOCTL REQUEST ------------------------ */ 856/* 857 * This structure defines the payload of an ioctl, and is used 858 * below. 859 * 860 * Note that this structure should fit on the memory footprint 861 * of iwreq (which is the same as ifreq), which mean a max size of 862 * 16 octets = 128 bits. Warning, pointers might be 64 bits wide... 863 * You should check this when increasing the structures defined 864 * above in this file... 865 */ 866union iwreq_data 867{ 868 /* Config - generic */ 869 char name[IFNAMSIZ]; 870 /* Name : used to verify the presence of wireless extensions. 871 * Name of the protocol/provider... */ 872 873 struct iw_point essid; /* Extended network name */ 874 struct iw_param nwid; /* network id (or domain - the cell) */ 875 struct iw_freq freq; /* frequency or channel : 876 * 0-1000 = channel 877 * > 1000 = frequency in Hz */ 878 879 struct iw_param sens; /* signal level threshold */ 880 struct iw_param bitrate; /* default bit rate */ 881 struct iw_param txpower; /* default transmit power */ 882 struct iw_param rts; /* RTS threshold threshold */ 883 struct iw_param frag; /* Fragmentation threshold */ 884 __u32 mode; /* Operation mode */ 885 struct iw_param retry; /* Retry limits & lifetime */ 886 887 struct iw_point encoding; /* Encoding stuff : tokens */ 888 struct iw_param power; /* PM duration/timeout */ 889 struct iw_quality qual; /* Quality part of statistics */ 890 891 struct sockaddr ap_addr; /* Access point address */ 892 struct sockaddr addr; /* Destination address (hw/mac) */ 893 894 struct iw_param param; /* Other small parameters */ 895 struct iw_point data; /* Other large parameters */ 896}; 897 898/* 899 * The structure to exchange data for ioctl. 900 * This structure is the same as 'struct ifreq', but (re)defined for 901 * convenience... 902 * Do I need to remind you about structure size (32 octets) ? 903 */ 904struct iwreq 905{ 906 union 907 { 908 char ifrn_name[IFNAMSIZ]; /* if name, e.g. "eth0" */ 909 } ifr_ifrn; 910 911 /* Data part (defined just above) */ 912 union iwreq_data u; 913}; 914 915/* -------------------------- IOCTL DATA -------------------------- */ 916/* 917 * For those ioctl which want to exchange mode data that what could 918 * fit in the above structure... 919 */ 920 921/* 922 * Range of parameters 923 */ 924 925struct iw_range 926{ 927 /* Informative stuff (to choose between different interface) */ 928 __u32 throughput; /* To give an idea... */ 929 /* In theory this value should be the maximum benchmarked 930 * TCP/IP throughput, because with most of these devices the 931 * bit rate is meaningless (overhead an co) to estimate how 932 * fast the connection will go and pick the fastest one. 933 * I suggest people to play with Netperf or any benchmark... 934 */ 935 936 /* NWID (or domain id) */ 937 __u32 min_nwid; /* Minimal NWID we are able to set */ 938 __u32 max_nwid; /* Maximal NWID we are able to set */ 939 940 /* Old Frequency (backward compat - moved lower ) */ 941 __u16 old_num_channels; 942 __u8 old_num_frequency; 943 944 /* Wireless event capability bitmasks */ 945 __u32 event_capa[6]; 946 947 /* signal level threshold range */ 948 __s32 sensitivity; 949 950 /* Quality of link & SNR stuff */ 951 /* Quality range (link, level, noise) 952 * If the quality is absolute, it will be in the range [0 ; max_qual], 953 * if the quality is dBm, it will be in the range [max_qual ; 0]. 954 * Don't forget that we use 8 bit arithmetics... */ 955 struct iw_quality max_qual; /* Quality of the link */ 956 /* This should contain the average/typical values of the quality 957 * indicator. This should be the threshold between a "good" and 958 * a "bad" link (example : monitor going from green to orange). 959 * Currently, user space apps like quality monitors don't have any 960 * way to calibrate the measurement. With this, they can split 961 * the range between 0 and max_qual in different quality level 962 * (using a geometric subdivision centered on the average). 963 * I expect that people doing the user space apps will feedback 964 * us on which value we need to put in each driver... */ 965 struct iw_quality avg_qual; /* Quality of the link */ 966 967 /* Rates */ 968 __u8 num_bitrates; /* Number of entries in the list */ 969 __s32 bitrate[IW_MAX_BITRATES]; /* list, in bps */ 970 971 /* RTS threshold */ 972 __s32 min_rts; /* Minimal RTS threshold */ 973 __s32 max_rts; /* Maximal RTS threshold */ 974 975 /* Frag threshold */ 976 __s32 min_frag; /* Minimal frag threshold */ 977 __s32 max_frag; /* Maximal frag threshold */ 978 979 /* Power Management duration & timeout */ 980 __s32 min_pmp; /* Minimal PM period */ 981 __s32 max_pmp; /* Maximal PM period */ 982 __s32 min_pmt; /* Minimal PM timeout */ 983 __s32 max_pmt; /* Maximal PM timeout */ 984 __u16 pmp_flags; /* How to decode max/min PM period */ 985 __u16 pmt_flags; /* How to decode max/min PM timeout */ 986 __u16 pm_capa; /* What PM options are supported */ 987 988 /* Encoder stuff */ 989 __u16 encoding_size[IW_MAX_ENCODING_SIZES]; /* Different token sizes */ 990 __u8 num_encoding_sizes; /* Number of entry in the list */ 991 __u8 max_encoding_tokens; /* Max number of tokens */ 992 /* For drivers that need a "login/passwd" form */ 993 __u8 encoding_login_index; /* token index for login token */ 994 995 /* Transmit power */ 996 __u16 txpower_capa; /* What options are supported */ 997 __u8 num_txpower; /* Number of entries in the list */ 998 __s32 txpower[IW_MAX_TXPOWER]; /* list, in bps */ 999 1000 /* Wireless Extension version info */ 1001 __u8 we_version_compiled; /* Must be WIRELESS_EXT */ 1002 __u8 we_version_source; /* Last update of source */ 1003 1004 /* Retry limits and lifetime */ 1005 __u16 retry_capa; /* What retry options are supported */ 1006 __u16 retry_flags; /* How to decode max/min retry limit */ 1007 __u16 r_time_flags; /* How to decode max/min retry life */ 1008 __s32 min_retry; /* Minimal number of retries */ 1009 __s32 max_retry; /* Maximal number of retries */ 1010 __s32 min_r_time; /* Minimal retry lifetime */ 1011 __s32 max_r_time; /* Maximal retry lifetime */ 1012 1013 /* Frequency */ 1014 __u16 num_channels; /* Number of channels [0; num - 1] */ 1015 __u8 num_frequency; /* Number of entry in the list */ 1016 struct iw_freq freq[IW_MAX_FREQUENCIES]; /* list */ 1017 /* Note : this frequency list doesn't need to fit channel numbers, 1018 * because each entry contain its channel index */ 1019 1020 __u32 enc_capa; /* IW_ENC_CAPA_* bit field */ 1021}; 1022 1023/* 1024 * Private ioctl interface information 1025 */ 1026 1027struct iw_priv_args 1028{ 1029 __u32 cmd; /* Number of the ioctl to issue */ 1030 __u16 set_args; /* Type and number of args */ 1031 __u16 get_args; /* Type and number of args */ 1032 char name[IFNAMSIZ]; /* Name of the extension */ 1033}; 1034 1035/* ----------------------- WIRELESS EVENTS ----------------------- */ 1036/* 1037 * Wireless events are carried through the rtnetlink socket to user 1038 * space. They are encapsulated in the IFLA_WIRELESS field of 1039 * a RTM_NEWLINK message. 1040 */ 1041 1042/* 1043 * A Wireless Event. Contains basically the same data as the ioctl... 1044 */ 1045struct iw_event 1046{ 1047 __u16 len; /* Real lenght of this stuff */ 1048 __u16 cmd; /* Wireless IOCTL */ 1049 union iwreq_data u; /* IOCTL fixed payload */ 1050}; 1051 1052/* Size of the Event prefix (including padding and alignement junk) */ 1053#define IW_EV_LCP_LEN (sizeof(struct iw_event) - sizeof(union iwreq_data)) 1054/* Size of the various events */ 1055#define IW_EV_CHAR_LEN (IW_EV_LCP_LEN + IFNAMSIZ) 1056#define IW_EV_UINT_LEN (IW_EV_LCP_LEN + sizeof(__u32)) 1057#define IW_EV_FREQ_LEN (IW_EV_LCP_LEN + sizeof(struct iw_freq)) 1058#define IW_EV_PARAM_LEN (IW_EV_LCP_LEN + sizeof(struct iw_param)) 1059#define IW_EV_ADDR_LEN (IW_EV_LCP_LEN + sizeof(struct sockaddr)) 1060#define IW_EV_QUAL_LEN (IW_EV_LCP_LEN + sizeof(struct iw_quality)) 1061 1062/* iw_point events are special. First, the payload (extra data) come at 1063 * the end of the event, so they are bigger than IW_EV_POINT_LEN. Second, 1064 * we omit the pointer, so start at an offset. */ 1065#define IW_EV_POINT_OFF (((char *) &(((struct iw_point *) NULL)->length)) - \ 1066 (char *) NULL) 1067#define IW_EV_POINT_LEN (IW_EV_LCP_LEN + sizeof(struct iw_point) - \ 1068 IW_EV_POINT_OFF) 1069 1070#endif /* _LINUX_WIRELESS_H */ 1071