linux/include/uapi/linux/wireless.h
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   1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2/*
   3 * This file define a set of standard wireless extensions
   4 *
   5 * Version :    22      16.3.07
   6 *
   7 * Authors :    Jean Tourrilhes - HPL - <jt@hpl.hp.com>
   8 * Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved.
   9 */
  10
  11#ifndef _UAPI_LINUX_WIRELESS_H
  12#define _UAPI_LINUX_WIRELESS_H
  13
  14/************************** DOCUMENTATION **************************/
  15/*
  16 * Initial APIs (1996 -> onward) :
  17 * -----------------------------
  18 * Basically, the wireless extensions are for now a set of standard ioctl
  19 * call + /proc/net/wireless
  20 *
  21 * The entry /proc/net/wireless give statistics and information on the
  22 * driver.
  23 * This is better than having each driver having its entry because
  24 * its centralised and we may remove the driver module safely.
  25 *
  26 * Ioctl are used to configure the driver and issue commands.  This is
  27 * better than command line options of insmod because we may want to
  28 * change dynamically (while the driver is running) some parameters.
  29 *
  30 * The ioctl mechanimsm are copied from standard devices ioctl.
  31 * We have the list of command plus a structure descibing the
  32 * data exchanged...
  33 * Note that to add these ioctl, I was obliged to modify :
  34 *      # net/core/dev.c (two place + add include)
  35 *      # net/ipv4/af_inet.c (one place + add include)
  36 *
  37 * /proc/net/wireless is a copy of /proc/net/dev.
  38 * We have a structure for data passed from the driver to /proc/net/wireless
  39 * Too add this, I've modified :
  40 *      # net/core/dev.c (two other places)
  41 *      # include/linux/netdevice.h (one place)
  42 *      # include/linux/proc_fs.h (one place)
  43 *
  44 * New driver API (2002 -> onward) :
  45 * -------------------------------
  46 * This file is only concerned with the user space API and common definitions.
  47 * The new driver API is defined and documented in :
  48 *      # include/net/iw_handler.h
  49 *
  50 * Note as well that /proc/net/wireless implementation has now moved in :
  51 *      # net/core/wireless.c
  52 *
  53 * Wireless Events (2002 -> onward) :
  54 * --------------------------------
  55 * Events are defined at the end of this file, and implemented in :
  56 *      # net/core/wireless.c
  57 *
  58 * Other comments :
  59 * --------------
  60 * Do not add here things that are redundant with other mechanisms
  61 * (drivers init, ifconfig, /proc/net/dev, ...) and with are not
  62 * wireless specific.
  63 *
  64 * These wireless extensions are not magic : each driver has to provide
  65 * support for them...
  66 *
  67 * IMPORTANT NOTE : As everything in the kernel, this is very much a
  68 * work in progress. Contact me if you have ideas of improvements...
  69 */
  70
  71/***************************** INCLUDES *****************************/
  72
  73#include <linux/types.h>                /* for __u* and __s* typedefs */
  74#include <linux/socket.h>               /* for "struct sockaddr" et al  */
  75#include <linux/if.h>                   /* for IFNAMSIZ and co... */
  76
  77/***************************** VERSION *****************************/
  78/*
  79 * This constant is used to know the availability of the wireless
  80 * extensions and to know which version of wireless extensions it is
  81 * (there is some stuff that will be added in the future...)
  82 * I just plan to increment with each new version.
  83 */
  84#define WIRELESS_EXT    22
  85
  86/*
  87 * Changes :
  88 *
  89 * V2 to V3
  90 * --------
  91 *      Alan Cox start some incompatibles changes. I've integrated a bit more.
  92 *      - Encryption renamed to Encode to avoid US regulation problems
  93 *      - Frequency changed from float to struct to avoid problems on old 386
  94 *
  95 * V3 to V4
  96 * --------
  97 *      - Add sensitivity
  98 *
  99 * V4 to V5
 100 * --------
 101 *      - Missing encoding definitions in range
 102 *      - Access points stuff
 103 *
 104 * V5 to V6
 105 * --------
 106 *      - 802.11 support (ESSID ioctls)
 107 *
 108 * V6 to V7
 109 * --------
 110 *      - define IW_ESSID_MAX_SIZE and IW_MAX_AP
 111 *
 112 * V7 to V8
 113 * --------
 114 *      - Changed my e-mail address
 115 *      - More 802.11 support (nickname, rate, rts, frag)
 116 *      - List index in frequencies
 117 *
 118 * V8 to V9
 119 * --------
 120 *      - Support for 'mode of operation' (ad-hoc, managed...)
 121 *      - Support for unicast and multicast power saving
 122 *      - Change encoding to support larger tokens (>64 bits)
 123 *      - Updated iw_params (disable, flags) and use it for NWID
 124 *      - Extracted iw_point from iwreq for clarity
 125 *
 126 * V9 to V10
 127 * ---------
 128 *      - Add PM capability to range structure
 129 *      - Add PM modifier : MAX/MIN/RELATIVE
 130 *      - Add encoding option : IW_ENCODE_NOKEY
 131 *      - Add TxPower ioctls (work like TxRate)
 132 *
 133 * V10 to V11
 134 * ----------
 135 *      - Add WE version in range (help backward/forward compatibility)
 136 *      - Add retry ioctls (work like PM)
 137 *
 138 * V11 to V12
 139 * ----------
 140 *      - Add SIOCSIWSTATS to get /proc/net/wireless programatically
 141 *      - Add DEV PRIVATE IOCTL to avoid collisions in SIOCDEVPRIVATE space
 142 *      - Add new statistics (frag, retry, beacon)
 143 *      - Add average quality (for user space calibration)
 144 *
 145 * V12 to V13
 146 * ----------
 147 *      - Document creation of new driver API.
 148 *      - Extract union iwreq_data from struct iwreq (for new driver API).
 149 *      - Rename SIOCSIWNAME as SIOCSIWCOMMIT
 150 *
 151 * V13 to V14
 152 * ----------
 153 *      - Wireless Events support : define struct iw_event
 154 *      - Define additional specific event numbers
 155 *      - Add "addr" and "param" fields in union iwreq_data
 156 *      - AP scanning stuff (SIOCSIWSCAN and friends)
 157 *
 158 * V14 to V15
 159 * ----------
 160 *      - Add IW_PRIV_TYPE_ADDR for struct sockaddr private arg
 161 *      - Make struct iw_freq signed (both m & e), add explicit padding
 162 *      - Add IWEVCUSTOM for driver specific event/scanning token
 163 *      - Add IW_MAX_GET_SPY for driver returning a lot of addresses
 164 *      - Add IW_TXPOW_RANGE for range of Tx Powers
 165 *      - Add IWEVREGISTERED & IWEVEXPIRED events for Access Points
 166 *      - Add IW_MODE_MONITOR for passive monitor
 167 *
 168 * V15 to V16
 169 * ----------
 170 *      - Increase the number of bitrates in iw_range to 32 (for 802.11g)
 171 *      - Increase the number of frequencies in iw_range to 32 (for 802.11b+a)
 172 *      - Reshuffle struct iw_range for increases, add filler
 173 *      - Increase IW_MAX_AP to 64 for driver returning a lot of addresses
 174 *      - Remove IW_MAX_GET_SPY because conflict with enhanced spy support
 175 *      - Add SIOCSIWTHRSPY/SIOCGIWTHRSPY and "struct iw_thrspy"
 176 *      - Add IW_ENCODE_TEMP and iw_range->encoding_login_index
 177 *
 178 * V16 to V17
 179 * ----------
 180 *      - Add flags to frequency -> auto/fixed
 181 *      - Document (struct iw_quality *)->updated, add new flags (INVALID)
 182 *      - Wireless Event capability in struct iw_range
 183 *      - Add support for relative TxPower (yick !)
 184 *
 185 * V17 to V18 (From Jouni Malinen <j@w1.fi>)
 186 * ----------
 187 *      - Add support for WPA/WPA2
 188 *      - Add extended encoding configuration (SIOCSIWENCODEEXT and
 189 *        SIOCGIWENCODEEXT)
 190 *      - Add SIOCSIWGENIE/SIOCGIWGENIE
 191 *      - Add SIOCSIWMLME
 192 *      - Add SIOCSIWPMKSA
 193 *      - Add struct iw_range bit field for supported encoding capabilities
 194 *      - Add optional scan request parameters for SIOCSIWSCAN
 195 *      - Add SIOCSIWAUTH/SIOCGIWAUTH for setting authentication and WPA
 196 *        related parameters (extensible up to 4096 parameter values)
 197 *      - Add wireless events: IWEVGENIE, IWEVMICHAELMICFAILURE,
 198 *        IWEVASSOCREQIE, IWEVASSOCRESPIE, IWEVPMKIDCAND
 199 *
 200 * V18 to V19
 201 * ----------
 202 *      - Remove (struct iw_point *)->pointer from events and streams
 203 *      - Remove header includes to help user space
 204 *      - Increase IW_ENCODING_TOKEN_MAX from 32 to 64
 205 *      - Add IW_QUAL_ALL_UPDATED and IW_QUAL_ALL_INVALID macros
 206 *      - Add explicit flag to tell stats are in dBm : IW_QUAL_DBM
 207 *      - Add IW_IOCTL_IDX() and IW_EVENT_IDX() macros
 208 *
 209 * V19 to V20
 210 * ----------
 211 *      - RtNetlink requests support (SET/GET)
 212 *
 213 * V20 to V21
 214 * ----------
 215 *      - Remove (struct net_device *)->get_wireless_stats()
 216 *      - Change length in ESSID and NICK to strlen() instead of strlen()+1
 217 *      - Add IW_RETRY_SHORT/IW_RETRY_LONG retry modifiers
 218 *      - Power/Retry relative values no longer * 100000
 219 *      - Add explicit flag to tell stats are in 802.11k RCPI : IW_QUAL_RCPI
 220 *
 221 * V21 to V22
 222 * ----------
 223 *      - Prevent leaking of kernel space in stream on 64 bits.
 224 */
 225
 226/**************************** CONSTANTS ****************************/
 227
 228/* -------------------------- IOCTL LIST -------------------------- */
 229
 230/* Wireless Identification */
 231#define SIOCSIWCOMMIT   0x8B00          /* Commit pending changes to driver */
 232#define SIOCGIWNAME     0x8B01          /* get name == wireless protocol */
 233/* SIOCGIWNAME is used to verify the presence of Wireless Extensions.
 234 * Common values : "IEEE 802.11-DS", "IEEE 802.11-FH", "IEEE 802.11b"...
 235 * Don't put the name of your driver there, it's useless. */
 236
 237/* Basic operations */
 238#define SIOCSIWNWID     0x8B02          /* set network id (pre-802.11) */
 239#define SIOCGIWNWID     0x8B03          /* get network id (the cell) */
 240#define SIOCSIWFREQ     0x8B04          /* set channel/frequency (Hz) */
 241#define SIOCGIWFREQ     0x8B05          /* get channel/frequency (Hz) */
 242#define SIOCSIWMODE     0x8B06          /* set operation mode */
 243#define SIOCGIWMODE     0x8B07          /* get operation mode */
 244#define SIOCSIWSENS     0x8B08          /* set sensitivity (dBm) */
 245#define SIOCGIWSENS     0x8B09          /* get sensitivity (dBm) */
 246
 247/* Informative stuff */
 248#define SIOCSIWRANGE    0x8B0A          /* Unused */
 249#define SIOCGIWRANGE    0x8B0B          /* Get range of parameters */
 250#define SIOCSIWPRIV     0x8B0C          /* Unused */
 251#define SIOCGIWPRIV     0x8B0D          /* get private ioctl interface info */
 252#define SIOCSIWSTATS    0x8B0E          /* Unused */
 253#define SIOCGIWSTATS    0x8B0F          /* Get /proc/net/wireless stats */
 254/* SIOCGIWSTATS is strictly used between user space and the kernel, and
 255 * is never passed to the driver (i.e. the driver will never see it). */
 256
 257/* Spy support (statistics per MAC address - used for Mobile IP support) */
 258#define SIOCSIWSPY      0x8B10          /* set spy addresses */
 259#define SIOCGIWSPY      0x8B11          /* get spy info (quality of link) */
 260#define SIOCSIWTHRSPY   0x8B12          /* set spy threshold (spy event) */
 261#define SIOCGIWTHRSPY   0x8B13          /* get spy threshold */
 262
 263/* Access Point manipulation */
 264#define SIOCSIWAP       0x8B14          /* set access point MAC addresses */
 265#define SIOCGIWAP       0x8B15          /* get access point MAC addresses */
 266#define SIOCGIWAPLIST   0x8B17          /* Deprecated in favor of scanning */
 267#define SIOCSIWSCAN     0x8B18          /* trigger scanning (list cells) */
 268#define SIOCGIWSCAN     0x8B19          /* get scanning results */
 269
 270/* 802.11 specific support */
 271#define SIOCSIWESSID    0x8B1A          /* set ESSID (network name) */
 272#define SIOCGIWESSID    0x8B1B          /* get ESSID */
 273#define SIOCSIWNICKN    0x8B1C          /* set node name/nickname */
 274#define SIOCGIWNICKN    0x8B1D          /* get node name/nickname */
 275/* As the ESSID and NICKN are strings up to 32 bytes long, it doesn't fit
 276 * within the 'iwreq' structure, so we need to use the 'data' member to
 277 * point to a string in user space, like it is done for RANGE... */
 278
 279/* Other parameters useful in 802.11 and some other devices */
 280#define SIOCSIWRATE     0x8B20          /* set default bit rate (bps) */
 281#define SIOCGIWRATE     0x8B21          /* get default bit rate (bps) */
 282#define SIOCSIWRTS      0x8B22          /* set RTS/CTS threshold (bytes) */
 283#define SIOCGIWRTS      0x8B23          /* get RTS/CTS threshold (bytes) */
 284#define SIOCSIWFRAG     0x8B24          /* set fragmentation thr (bytes) */
 285#define SIOCGIWFRAG     0x8B25          /* get fragmentation thr (bytes) */
 286#define SIOCSIWTXPOW    0x8B26          /* set transmit power (dBm) */
 287#define SIOCGIWTXPOW    0x8B27          /* get transmit power (dBm) */
 288#define SIOCSIWRETRY    0x8B28          /* set retry limits and lifetime */
 289#define SIOCGIWRETRY    0x8B29          /* get retry limits and lifetime */
 290
 291/* Encoding stuff (scrambling, hardware security, WEP...) */
 292#define SIOCSIWENCODE   0x8B2A          /* set encoding token & mode */
 293#define SIOCGIWENCODE   0x8B2B          /* get encoding token & mode */
 294/* Power saving stuff (power management, unicast and multicast) */
 295#define SIOCSIWPOWER    0x8B2C          /* set Power Management settings */
 296#define SIOCGIWPOWER    0x8B2D          /* get Power Management settings */
 297
 298/* WPA : Generic IEEE 802.11 informatiom element (e.g., for WPA/RSN/WMM).
 299 * This ioctl uses struct iw_point and data buffer that includes IE id and len
 300 * fields. More than one IE may be included in the request. Setting the generic
 301 * IE to empty buffer (len=0) removes the generic IE from the driver. Drivers
 302 * are allowed to generate their own WPA/RSN IEs, but in these cases, drivers
 303 * are required to report the used IE as a wireless event, e.g., when
 304 * associating with an AP. */
 305#define SIOCSIWGENIE    0x8B30          /* set generic IE */
 306#define SIOCGIWGENIE    0x8B31          /* get generic IE */
 307
 308/* WPA : IEEE 802.11 MLME requests */
 309#define SIOCSIWMLME     0x8B16          /* request MLME operation; uses
 310                                         * struct iw_mlme */
 311/* WPA : Authentication mode parameters */
 312#define SIOCSIWAUTH     0x8B32          /* set authentication mode params */
 313#define SIOCGIWAUTH     0x8B33          /* get authentication mode params */
 314
 315/* WPA : Extended version of encoding configuration */
 316#define SIOCSIWENCODEEXT 0x8B34         /* set encoding token & mode */
 317#define SIOCGIWENCODEEXT 0x8B35         /* get encoding token & mode */
 318
 319/* WPA2 : PMKSA cache management */
 320#define SIOCSIWPMKSA    0x8B36          /* PMKSA cache operation */
 321
 322/* -------------------- DEV PRIVATE IOCTL LIST -------------------- */
 323
 324/* These 32 ioctl are wireless device private, for 16 commands.
 325 * Each driver is free to use them for whatever purpose it chooses,
 326 * however the driver *must* export the description of those ioctls
 327 * with SIOCGIWPRIV and *must* use arguments as defined below.
 328 * If you don't follow those rules, DaveM is going to hate you (reason :
 329 * it make mixed 32/64bit operation impossible).
 330 */
 331#define SIOCIWFIRSTPRIV 0x8BE0
 332#define SIOCIWLASTPRIV  0x8BFF
 333/* Previously, we were using SIOCDEVPRIVATE, but we now have our
 334 * separate range because of collisions with other tools such as
 335 * 'mii-tool'.
 336 * We now have 32 commands, so a bit more space ;-).
 337 * Also, all 'even' commands are only usable by root and don't return the
 338 * content of ifr/iwr to user (but you are not obliged to use the set/get
 339 * convention, just use every other two command). More details in iwpriv.c.
 340 * And I repeat : you are not forced to use them with iwpriv, but you
 341 * must be compliant with it.
 342 */
 343
 344/* ------------------------- IOCTL STUFF ------------------------- */
 345
 346/* The first and the last (range) */
 347#define SIOCIWFIRST     0x8B00
 348#define SIOCIWLAST      SIOCIWLASTPRIV          /* 0x8BFF */
 349#define IW_IOCTL_IDX(cmd)       ((cmd) - SIOCIWFIRST)
 350#define IW_HANDLER(id, func)                    \
 351        [IW_IOCTL_IDX(id)] = func
 352
 353/* Odd : get (world access), even : set (root access) */
 354#define IW_IS_SET(cmd)  (!((cmd) & 0x1))
 355#define IW_IS_GET(cmd)  ((cmd) & 0x1)
 356
 357/* ----------------------- WIRELESS EVENTS ----------------------- */
 358/* Those are *NOT* ioctls, do not issue request on them !!! */
 359/* Most events use the same identifier as ioctl requests */
 360
 361#define IWEVTXDROP      0x8C00          /* Packet dropped to excessive retry */
 362#define IWEVQUAL        0x8C01          /* Quality part of statistics (scan) */
 363#define IWEVCUSTOM      0x8C02          /* Driver specific ascii string */
 364#define IWEVREGISTERED  0x8C03          /* Discovered a new node (AP mode) */
 365#define IWEVEXPIRED     0x8C04          /* Expired a node (AP mode) */
 366#define IWEVGENIE       0x8C05          /* Generic IE (WPA, RSN, WMM, ..)
 367                                         * (scan results); This includes id and
 368                                         * length fields. One IWEVGENIE may
 369                                         * contain more than one IE. Scan
 370                                         * results may contain one or more
 371                                         * IWEVGENIE events. */
 372#define IWEVMICHAELMICFAILURE 0x8C06    /* Michael MIC failure
 373                                         * (struct iw_michaelmicfailure)
 374                                         */
 375#define IWEVASSOCREQIE  0x8C07          /* IEs used in (Re)Association Request.
 376                                         * The data includes id and length
 377                                         * fields and may contain more than one
 378                                         * IE. This event is required in
 379                                         * Managed mode if the driver
 380                                         * generates its own WPA/RSN IE. This
 381                                         * should be sent just before
 382                                         * IWEVREGISTERED event for the
 383                                         * association. */
 384#define IWEVASSOCRESPIE 0x8C08          /* IEs used in (Re)Association
 385                                         * Response. The data includes id and
 386                                         * length fields and may contain more
 387                                         * than one IE. This may be sent
 388                                         * between IWEVASSOCREQIE and
 389                                         * IWEVREGISTERED events for the
 390                                         * association. */
 391#define IWEVPMKIDCAND   0x8C09          /* PMKID candidate for RSN
 392                                         * pre-authentication
 393                                         * (struct iw_pmkid_cand) */
 394
 395#define IWEVFIRST       0x8C00
 396#define IW_EVENT_IDX(cmd)       ((cmd) - IWEVFIRST)
 397
 398/* ------------------------- PRIVATE INFO ------------------------- */
 399/*
 400 * The following is used with SIOCGIWPRIV. It allow a driver to define
 401 * the interface (name, type of data) for its private ioctl.
 402 * Privates ioctl are SIOCIWFIRSTPRIV -> SIOCIWLASTPRIV
 403 */
 404
 405#define IW_PRIV_TYPE_MASK       0x7000  /* Type of arguments */
 406#define IW_PRIV_TYPE_NONE       0x0000
 407#define IW_PRIV_TYPE_BYTE       0x1000  /* Char as number */
 408#define IW_PRIV_TYPE_CHAR       0x2000  /* Char as character */
 409#define IW_PRIV_TYPE_INT        0x4000  /* 32 bits int */
 410#define IW_PRIV_TYPE_FLOAT      0x5000  /* struct iw_freq */
 411#define IW_PRIV_TYPE_ADDR       0x6000  /* struct sockaddr */
 412
 413#define IW_PRIV_SIZE_FIXED      0x0800  /* Variable or fixed number of args */
 414
 415#define IW_PRIV_SIZE_MASK       0x07FF  /* Max number of those args */
 416
 417/*
 418 * Note : if the number of args is fixed and the size < 16 octets,
 419 * instead of passing a pointer we will put args in the iwreq struct...
 420 */
 421
 422/* ----------------------- OTHER CONSTANTS ----------------------- */
 423
 424/* Maximum frequencies in the range struct */
 425#define IW_MAX_FREQUENCIES      32
 426/* Note : if you have something like 80 frequencies,
 427 * don't increase this constant and don't fill the frequency list.
 428 * The user will be able to set by channel anyway... */
 429
 430/* Maximum bit rates in the range struct */
 431#define IW_MAX_BITRATES         32
 432
 433/* Maximum tx powers in the range struct */
 434#define IW_MAX_TXPOWER          8
 435/* Note : if you more than 8 TXPowers, just set the max and min or
 436 * a few of them in the struct iw_range. */
 437
 438/* Maximum of address that you may set with SPY */
 439#define IW_MAX_SPY              8
 440
 441/* Maximum of address that you may get in the
 442   list of access points in range */
 443#define IW_MAX_AP               64
 444
 445/* Maximum size of the ESSID and NICKN strings */
 446#define IW_ESSID_MAX_SIZE       32
 447
 448/* Modes of operation */
 449#define IW_MODE_AUTO    0       /* Let the driver decides */
 450#define IW_MODE_ADHOC   1       /* Single cell network */
 451#define IW_MODE_INFRA   2       /* Multi cell network, roaming, ... */
 452#define IW_MODE_MASTER  3       /* Synchronisation master or Access Point */
 453#define IW_MODE_REPEAT  4       /* Wireless Repeater (forwarder) */
 454#define IW_MODE_SECOND  5       /* Secondary master/repeater (backup) */
 455#define IW_MODE_MONITOR 6       /* Passive monitor (listen only) */
 456#define IW_MODE_MESH    7       /* Mesh (IEEE 802.11s) network */
 457
 458/* Statistics flags (bitmask in updated) */
 459#define IW_QUAL_QUAL_UPDATED    0x01    /* Value was updated since last read */
 460#define IW_QUAL_LEVEL_UPDATED   0x02
 461#define IW_QUAL_NOISE_UPDATED   0x04
 462#define IW_QUAL_ALL_UPDATED     0x07
 463#define IW_QUAL_DBM             0x08    /* Level + Noise are dBm */
 464#define IW_QUAL_QUAL_INVALID    0x10    /* Driver doesn't provide value */
 465#define IW_QUAL_LEVEL_INVALID   0x20
 466#define IW_QUAL_NOISE_INVALID   0x40
 467#define IW_QUAL_RCPI            0x80    /* Level + Noise are 802.11k RCPI */
 468#define IW_QUAL_ALL_INVALID     0x70
 469
 470/* Frequency flags */
 471#define IW_FREQ_AUTO            0x00    /* Let the driver decides */
 472#define IW_FREQ_FIXED           0x01    /* Force a specific value */
 473
 474/* Maximum number of size of encoding token available
 475 * they are listed in the range structure */
 476#define IW_MAX_ENCODING_SIZES   8
 477
 478/* Maximum size of the encoding token in bytes */
 479#define IW_ENCODING_TOKEN_MAX   64      /* 512 bits (for now) */
 480
 481/* Flags for encoding (along with the token) */
 482#define IW_ENCODE_INDEX         0x00FF  /* Token index (if needed) */
 483#define IW_ENCODE_FLAGS         0xFF00  /* Flags defined below */
 484#define IW_ENCODE_MODE          0xF000  /* Modes defined below */
 485#define IW_ENCODE_DISABLED      0x8000  /* Encoding disabled */
 486#define IW_ENCODE_ENABLED       0x0000  /* Encoding enabled */
 487#define IW_ENCODE_RESTRICTED    0x4000  /* Refuse non-encoded packets */
 488#define IW_ENCODE_OPEN          0x2000  /* Accept non-encoded packets */
 489#define IW_ENCODE_NOKEY         0x0800  /* Key is write only, so not present */
 490#define IW_ENCODE_TEMP          0x0400  /* Temporary key */
 491
 492/* Power management flags available (along with the value, if any) */
 493#define IW_POWER_ON             0x0000  /* No details... */
 494#define IW_POWER_TYPE           0xF000  /* Type of parameter */
 495#define IW_POWER_PERIOD         0x1000  /* Value is a period/duration of  */
 496#define IW_POWER_TIMEOUT        0x2000  /* Value is a timeout (to go asleep) */
 497#define IW_POWER_MODE           0x0F00  /* Power Management mode */
 498#define IW_POWER_UNICAST_R      0x0100  /* Receive only unicast messages */
 499#define IW_POWER_MULTICAST_R    0x0200  /* Receive only multicast messages */
 500#define IW_POWER_ALL_R          0x0300  /* Receive all messages though PM */
 501#define IW_POWER_FORCE_S        0x0400  /* Force PM procedure for sending unicast */
 502#define IW_POWER_REPEATER       0x0800  /* Repeat broadcast messages in PM period */
 503#define IW_POWER_MODIFIER       0x000F  /* Modify a parameter */
 504#define IW_POWER_MIN            0x0001  /* Value is a minimum  */
 505#define IW_POWER_MAX            0x0002  /* Value is a maximum */
 506#define IW_POWER_RELATIVE       0x0004  /* Value is not in seconds/ms/us */
 507
 508/* Transmit Power flags available */
 509#define IW_TXPOW_TYPE           0x00FF  /* Type of value */
 510#define IW_TXPOW_DBM            0x0000  /* Value is in dBm */
 511#define IW_TXPOW_MWATT          0x0001  /* Value is in mW */
 512#define IW_TXPOW_RELATIVE       0x0002  /* Value is in arbitrary units */
 513#define IW_TXPOW_RANGE          0x1000  /* Range of value between min/max */
 514
 515/* Retry limits and lifetime flags available */
 516#define IW_RETRY_ON             0x0000  /* No details... */
 517#define IW_RETRY_TYPE           0xF000  /* Type of parameter */
 518#define IW_RETRY_LIMIT          0x1000  /* Maximum number of retries*/
 519#define IW_RETRY_LIFETIME       0x2000  /* Maximum duration of retries in us */
 520#define IW_RETRY_MODIFIER       0x00FF  /* Modify a parameter */
 521#define IW_RETRY_MIN            0x0001  /* Value is a minimum  */
 522#define IW_RETRY_MAX            0x0002  /* Value is a maximum */
 523#define IW_RETRY_RELATIVE       0x0004  /* Value is not in seconds/ms/us */
 524#define IW_RETRY_SHORT          0x0010  /* Value is for short packets  */
 525#define IW_RETRY_LONG           0x0020  /* Value is for long packets */
 526
 527/* Scanning request flags */
 528#define IW_SCAN_DEFAULT         0x0000  /* Default scan of the driver */
 529#define IW_SCAN_ALL_ESSID       0x0001  /* Scan all ESSIDs */
 530#define IW_SCAN_THIS_ESSID      0x0002  /* Scan only this ESSID */
 531#define IW_SCAN_ALL_FREQ        0x0004  /* Scan all Frequencies */
 532#define IW_SCAN_THIS_FREQ       0x0008  /* Scan only this Frequency */
 533#define IW_SCAN_ALL_MODE        0x0010  /* Scan all Modes */
 534#define IW_SCAN_THIS_MODE       0x0020  /* Scan only this Mode */
 535#define IW_SCAN_ALL_RATE        0x0040  /* Scan all Bit-Rates */
 536#define IW_SCAN_THIS_RATE       0x0080  /* Scan only this Bit-Rate */
 537/* struct iw_scan_req scan_type */
 538#define IW_SCAN_TYPE_ACTIVE 0
 539#define IW_SCAN_TYPE_PASSIVE 1
 540/* Maximum size of returned data */
 541#define IW_SCAN_MAX_DATA        4096    /* In bytes */
 542
 543/* Scan capability flags - in (struct iw_range *)->scan_capa */
 544#define IW_SCAN_CAPA_NONE               0x00
 545#define IW_SCAN_CAPA_ESSID              0x01
 546#define IW_SCAN_CAPA_BSSID              0x02
 547#define IW_SCAN_CAPA_CHANNEL    0x04
 548#define IW_SCAN_CAPA_MODE               0x08
 549#define IW_SCAN_CAPA_RATE               0x10
 550#define IW_SCAN_CAPA_TYPE               0x20
 551#define IW_SCAN_CAPA_TIME               0x40
 552
 553/* Max number of char in custom event - use multiple of them if needed */
 554#define IW_CUSTOM_MAX           256     /* In bytes */
 555
 556/* Generic information element */
 557#define IW_GENERIC_IE_MAX       1024
 558
 559/* MLME requests (SIOCSIWMLME / struct iw_mlme) */
 560#define IW_MLME_DEAUTH          0
 561#define IW_MLME_DISASSOC        1
 562#define IW_MLME_AUTH            2
 563#define IW_MLME_ASSOC           3
 564
 565/* SIOCSIWAUTH/SIOCGIWAUTH struct iw_param flags */
 566#define IW_AUTH_INDEX           0x0FFF
 567#define IW_AUTH_FLAGS           0xF000
 568/* SIOCSIWAUTH/SIOCGIWAUTH parameters (0 .. 4095)
 569 * (IW_AUTH_INDEX mask in struct iw_param flags; this is the index of the
 570 * parameter that is being set/get to; value will be read/written to
 571 * struct iw_param value field) */
 572#define IW_AUTH_WPA_VERSION             0
 573#define IW_AUTH_CIPHER_PAIRWISE         1
 574#define IW_AUTH_CIPHER_GROUP            2
 575#define IW_AUTH_KEY_MGMT                3
 576#define IW_AUTH_TKIP_COUNTERMEASURES    4
 577#define IW_AUTH_DROP_UNENCRYPTED        5
 578#define IW_AUTH_80211_AUTH_ALG          6
 579#define IW_AUTH_WPA_ENABLED             7
 580#define IW_AUTH_RX_UNENCRYPTED_EAPOL    8
 581#define IW_AUTH_ROAMING_CONTROL         9
 582#define IW_AUTH_PRIVACY_INVOKED         10
 583#define IW_AUTH_CIPHER_GROUP_MGMT       11
 584#define IW_AUTH_MFP                     12
 585
 586/* IW_AUTH_WPA_VERSION values (bit field) */
 587#define IW_AUTH_WPA_VERSION_DISABLED    0x00000001
 588#define IW_AUTH_WPA_VERSION_WPA         0x00000002
 589#define IW_AUTH_WPA_VERSION_WPA2        0x00000004
 590
 591/* IW_AUTH_PAIRWISE_CIPHER, IW_AUTH_GROUP_CIPHER, and IW_AUTH_CIPHER_GROUP_MGMT
 592 * values (bit field) */
 593#define IW_AUTH_CIPHER_NONE     0x00000001
 594#define IW_AUTH_CIPHER_WEP40    0x00000002
 595#define IW_AUTH_CIPHER_TKIP     0x00000004
 596#define IW_AUTH_CIPHER_CCMP     0x00000008
 597#define IW_AUTH_CIPHER_WEP104   0x00000010
 598#define IW_AUTH_CIPHER_AES_CMAC 0x00000020
 599
 600/* IW_AUTH_KEY_MGMT values (bit field) */
 601#define IW_AUTH_KEY_MGMT_802_1X 1
 602#define IW_AUTH_KEY_MGMT_PSK    2
 603
 604/* IW_AUTH_80211_AUTH_ALG values (bit field) */
 605#define IW_AUTH_ALG_OPEN_SYSTEM 0x00000001
 606#define IW_AUTH_ALG_SHARED_KEY  0x00000002
 607#define IW_AUTH_ALG_LEAP        0x00000004
 608
 609/* IW_AUTH_ROAMING_CONTROL values */
 610#define IW_AUTH_ROAMING_ENABLE  0       /* driver/firmware based roaming */
 611#define IW_AUTH_ROAMING_DISABLE 1       /* user space program used for roaming
 612                                         * control */
 613
 614/* IW_AUTH_MFP (management frame protection) values */
 615#define IW_AUTH_MFP_DISABLED    0       /* MFP disabled */
 616#define IW_AUTH_MFP_OPTIONAL    1       /* MFP optional */
 617#define IW_AUTH_MFP_REQUIRED    2       /* MFP required */
 618
 619/* SIOCSIWENCODEEXT definitions */
 620#define IW_ENCODE_SEQ_MAX_SIZE  8
 621/* struct iw_encode_ext ->alg */
 622#define IW_ENCODE_ALG_NONE      0
 623#define IW_ENCODE_ALG_WEP       1
 624#define IW_ENCODE_ALG_TKIP      2
 625#define IW_ENCODE_ALG_CCMP      3
 626#define IW_ENCODE_ALG_PMK       4
 627#define IW_ENCODE_ALG_AES_CMAC  5
 628/* struct iw_encode_ext ->ext_flags */
 629#define IW_ENCODE_EXT_TX_SEQ_VALID      0x00000001
 630#define IW_ENCODE_EXT_RX_SEQ_VALID      0x00000002
 631#define IW_ENCODE_EXT_GROUP_KEY         0x00000004
 632#define IW_ENCODE_EXT_SET_TX_KEY        0x00000008
 633
 634/* IWEVMICHAELMICFAILURE : struct iw_michaelmicfailure ->flags */
 635#define IW_MICFAILURE_KEY_ID    0x00000003 /* Key ID 0..3 */
 636#define IW_MICFAILURE_GROUP     0x00000004
 637#define IW_MICFAILURE_PAIRWISE  0x00000008
 638#define IW_MICFAILURE_STAKEY    0x00000010
 639#define IW_MICFAILURE_COUNT     0x00000060 /* 1 or 2 (0 = count not supported)
 640                                            */
 641
 642/* Bit field values for enc_capa in struct iw_range */
 643#define IW_ENC_CAPA_WPA         0x00000001
 644#define IW_ENC_CAPA_WPA2        0x00000002
 645#define IW_ENC_CAPA_CIPHER_TKIP 0x00000004
 646#define IW_ENC_CAPA_CIPHER_CCMP 0x00000008
 647#define IW_ENC_CAPA_4WAY_HANDSHAKE      0x00000010
 648
 649/* Event capability macros - in (struct iw_range *)->event_capa
 650 * Because we have more than 32 possible events, we use an array of
 651 * 32 bit bitmasks. Note : 32 bits = 0x20 = 2^5. */
 652#define IW_EVENT_CAPA_BASE(cmd)         ((cmd >= SIOCIWFIRSTPRIV) ? \
 653                                         (cmd - SIOCIWFIRSTPRIV + 0x60) : \
 654                                         (cmd - SIOCIWFIRST))
 655#define IW_EVENT_CAPA_INDEX(cmd)        (IW_EVENT_CAPA_BASE(cmd) >> 5)
 656#define IW_EVENT_CAPA_MASK(cmd)         (1 << (IW_EVENT_CAPA_BASE(cmd) & 0x1F))
 657/* Event capability constants - event autogenerated by the kernel
 658 * This list is valid for most 802.11 devices, customise as needed... */
 659#define IW_EVENT_CAPA_K_0       (IW_EVENT_CAPA_MASK(0x8B04) | \
 660                                 IW_EVENT_CAPA_MASK(0x8B06) | \
 661                                 IW_EVENT_CAPA_MASK(0x8B1A))
 662#define IW_EVENT_CAPA_K_1       (IW_EVENT_CAPA_MASK(0x8B2A))
 663/* "Easy" macro to set events in iw_range (less efficient) */
 664#define IW_EVENT_CAPA_SET(event_capa, cmd) (event_capa[IW_EVENT_CAPA_INDEX(cmd)] |= IW_EVENT_CAPA_MASK(cmd))
 665#define IW_EVENT_CAPA_SET_KERNEL(event_capa) {event_capa[0] |= IW_EVENT_CAPA_K_0; event_capa[1] |= IW_EVENT_CAPA_K_1; }
 666
 667
 668/****************************** TYPES ******************************/
 669
 670/* --------------------------- SUBTYPES --------------------------- */
 671/*
 672 *      Generic format for most parameters that fit in an int
 673 */
 674struct iw_param {
 675  __s32         value;          /* The value of the parameter itself */
 676  __u8          fixed;          /* Hardware should not use auto select */
 677  __u8          disabled;       /* Disable the feature */
 678  __u16         flags;          /* Various specifc flags (if any) */
 679};
 680
 681/*
 682 *      For all data larger than 16 octets, we need to use a
 683 *      pointer to memory allocated in user space.
 684 */
 685struct iw_point {
 686  void __user   *pointer;       /* Pointer to the data  (in user space) */
 687  __u16         length;         /* number of fields or size in bytes */
 688  __u16         flags;          /* Optional params */
 689};
 690
 691
 692/*
 693 *      A frequency
 694 *      For numbers lower than 10^9, we encode the number in 'm' and
 695 *      set 'e' to 0
 696 *      For number greater than 10^9, we divide it by the lowest power
 697 *      of 10 to get 'm' lower than 10^9, with 'm'= f / (10^'e')...
 698 *      The power of 10 is in 'e', the result of the division is in 'm'.
 699 */
 700struct iw_freq {
 701        __s32           m;              /* Mantissa */
 702        __s16           e;              /* Exponent */
 703        __u8            i;              /* List index (when in range struct) */
 704        __u8            flags;          /* Flags (fixed/auto) */
 705};
 706
 707/*
 708 *      Quality of the link
 709 */
 710struct iw_quality {
 711        __u8            qual;           /* link quality (%retries, SNR,
 712                                           %missed beacons or better...) */
 713        __u8            level;          /* signal level (dBm) */
 714        __u8            noise;          /* noise level (dBm) */
 715        __u8            updated;        /* Flags to know if updated */
 716};
 717
 718/*
 719 *      Packet discarded in the wireless adapter due to
 720 *      "wireless" specific problems...
 721 *      Note : the list of counter and statistics in net_device_stats
 722 *      is already pretty exhaustive, and you should use that first.
 723 *      This is only additional stats...
 724 */
 725struct iw_discarded {
 726        __u32           nwid;           /* Rx : Wrong nwid/essid */
 727        __u32           code;           /* Rx : Unable to code/decode (WEP) */
 728        __u32           fragment;       /* Rx : Can't perform MAC reassembly */
 729        __u32           retries;        /* Tx : Max MAC retries num reached */
 730        __u32           misc;           /* Others cases */
 731};
 732
 733/*
 734 *      Packet/Time period missed in the wireless adapter due to
 735 *      "wireless" specific problems...
 736 */
 737struct iw_missed {
 738        __u32           beacon;         /* Missed beacons/superframe */
 739};
 740
 741/*
 742 *      Quality range (for spy threshold)
 743 */
 744struct iw_thrspy {
 745        struct sockaddr         addr;           /* Source address (hw/mac) */
 746        struct iw_quality       qual;           /* Quality of the link */
 747        struct iw_quality       low;            /* Low threshold */
 748        struct iw_quality       high;           /* High threshold */
 749};
 750
 751/*
 752 *      Optional data for scan request
 753 *
 754 *      Note: these optional parameters are controlling parameters for the
 755 *      scanning behavior, these do not apply to getting scan results
 756 *      (SIOCGIWSCAN). Drivers are expected to keep a local BSS table and
 757 *      provide a merged results with all BSSes even if the previous scan
 758 *      request limited scanning to a subset, e.g., by specifying an SSID.
 759 *      Especially, scan results are required to include an entry for the
 760 *      current BSS if the driver is in Managed mode and associated with an AP.
 761 */
 762struct iw_scan_req {
 763        __u8            scan_type; /* IW_SCAN_TYPE_{ACTIVE,PASSIVE} */
 764        __u8            essid_len;
 765        __u8            num_channels; /* num entries in channel_list;
 766                                       * 0 = scan all allowed channels */
 767        __u8            flags; /* reserved as padding; use zero, this may
 768                                * be used in the future for adding flags
 769                                * to request different scan behavior */
 770        struct sockaddr bssid; /* ff:ff:ff:ff:ff:ff for broadcast BSSID or
 771                                * individual address of a specific BSS */
 772
 773        /*
 774         * Use this ESSID if IW_SCAN_THIS_ESSID flag is used instead of using
 775         * the current ESSID. This allows scan requests for specific ESSID
 776         * without having to change the current ESSID and potentially breaking
 777         * the current association.
 778         */
 779        __u8            essid[IW_ESSID_MAX_SIZE];
 780
 781        /*
 782         * Optional parameters for changing the default scanning behavior.
 783         * These are based on the MLME-SCAN.request from IEEE Std 802.11.
 784         * TU is 1.024 ms. If these are set to 0, driver is expected to use
 785         * reasonable default values. min_channel_time defines the time that
 786         * will be used to wait for the first reply on each channel. If no
 787         * replies are received, next channel will be scanned after this. If
 788         * replies are received, total time waited on the channel is defined by
 789         * max_channel_time.
 790         */
 791        __u32           min_channel_time; /* in TU */
 792        __u32           max_channel_time; /* in TU */
 793
 794        struct iw_freq  channel_list[IW_MAX_FREQUENCIES];
 795};
 796
 797/* ------------------------- WPA SUPPORT ------------------------- */
 798
 799/*
 800 *      Extended data structure for get/set encoding (this is used with
 801 *      SIOCSIWENCODEEXT/SIOCGIWENCODEEXT. struct iw_point and IW_ENCODE_*
 802 *      flags are used in the same way as with SIOCSIWENCODE/SIOCGIWENCODE and
 803 *      only the data contents changes (key data -> this structure, including
 804 *      key data).
 805 *
 806 *      If the new key is the first group key, it will be set as the default
 807 *      TX key. Otherwise, default TX key index is only changed if
 808 *      IW_ENCODE_EXT_SET_TX_KEY flag is set.
 809 *
 810 *      Key will be changed with SIOCSIWENCODEEXT in all cases except for
 811 *      special "change TX key index" operation which is indicated by setting
 812 *      key_len = 0 and ext_flags |= IW_ENCODE_EXT_SET_TX_KEY.
 813 *
 814 *      tx_seq/rx_seq are only used when respective
 815 *      IW_ENCODE_EXT_{TX,RX}_SEQ_VALID flag is set in ext_flags. Normal
 816 *      TKIP/CCMP operation is to set RX seq with SIOCSIWENCODEEXT and start
 817 *      TX seq from zero whenever key is changed. SIOCGIWENCODEEXT is normally
 818 *      used only by an Authenticator (AP or an IBSS station) to get the
 819 *      current TX sequence number. Using TX_SEQ_VALID for SIOCSIWENCODEEXT and
 820 *      RX_SEQ_VALID for SIOCGIWENCODEEXT are optional, but can be useful for
 821 *      debugging/testing.
 822 */
 823struct iw_encode_ext {
 824        __u32           ext_flags; /* IW_ENCODE_EXT_* */
 825        __u8            tx_seq[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */
 826        __u8            rx_seq[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */
 827        struct sockaddr addr; /* ff:ff:ff:ff:ff:ff for broadcast/multicast
 828                               * (group) keys or unicast address for
 829                               * individual keys */
 830        __u16           alg; /* IW_ENCODE_ALG_* */
 831        __u16           key_len;
 832        __u8            key[0];
 833};
 834
 835/* SIOCSIWMLME data */
 836struct iw_mlme {
 837        __u16           cmd; /* IW_MLME_* */
 838        __u16           reason_code;
 839        struct sockaddr addr;
 840};
 841
 842/* SIOCSIWPMKSA data */
 843#define IW_PMKSA_ADD            1
 844#define IW_PMKSA_REMOVE         2
 845#define IW_PMKSA_FLUSH          3
 846
 847#define IW_PMKID_LEN    16
 848
 849struct iw_pmksa {
 850        __u32           cmd; /* IW_PMKSA_* */
 851        struct sockaddr bssid;
 852        __u8            pmkid[IW_PMKID_LEN];
 853};
 854
 855/* IWEVMICHAELMICFAILURE data */
 856struct iw_michaelmicfailure {
 857        __u32           flags;
 858        struct sockaddr src_addr;
 859        __u8            tsc[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */
 860};
 861
 862/* IWEVPMKIDCAND data */
 863#define IW_PMKID_CAND_PREAUTH   0x00000001 /* RNS pre-authentication enabled */
 864struct iw_pmkid_cand {
 865        __u32           flags; /* IW_PMKID_CAND_* */
 866        __u32           index; /* the smaller the index, the higher the
 867                                * priority */
 868        struct sockaddr bssid;
 869};
 870
 871/* ------------------------ WIRELESS STATS ------------------------ */
 872/*
 873 * Wireless statistics (used for /proc/net/wireless)
 874 */
 875struct iw_statistics {
 876        __u16           status;         /* Status
 877                                         * - device dependent for now */
 878
 879        struct iw_quality       qual;           /* Quality of the link
 880                                                 * (instant/mean/max) */
 881        struct iw_discarded     discard;        /* Packet discarded counts */
 882        struct iw_missed        miss;           /* Packet missed counts */
 883};
 884
 885/* ------------------------ IOCTL REQUEST ------------------------ */
 886/*
 887 * This structure defines the payload of an ioctl, and is used
 888 * below.
 889 *
 890 * Note that this structure should fit on the memory footprint
 891 * of iwreq (which is the same as ifreq), which mean a max size of
 892 * 16 octets = 128 bits. Warning, pointers might be 64 bits wide...
 893 * You should check this when increasing the structures defined
 894 * above in this file...
 895 */
 896union iwreq_data {
 897        /* Config - generic */
 898        char            name[IFNAMSIZ];
 899        /* Name : used to verify the presence of  wireless extensions.
 900         * Name of the protocol/provider... */
 901
 902        struct iw_point essid;          /* Extended network name */
 903        struct iw_param nwid;           /* network id (or domain - the cell) */
 904        struct iw_freq  freq;           /* frequency or channel :
 905                                         * 0-1000 = channel
 906                                         * > 1000 = frequency in Hz */
 907
 908        struct iw_param sens;           /* signal level threshold */
 909        struct iw_param bitrate;        /* default bit rate */
 910        struct iw_param txpower;        /* default transmit power */
 911        struct iw_param rts;            /* RTS threshold threshold */
 912        struct iw_param frag;           /* Fragmentation threshold */
 913        __u32           mode;           /* Operation mode */
 914        struct iw_param retry;          /* Retry limits & lifetime */
 915
 916        struct iw_point encoding;       /* Encoding stuff : tokens */
 917        struct iw_param power;          /* PM duration/timeout */
 918        struct iw_quality qual;         /* Quality part of statistics */
 919
 920        struct sockaddr ap_addr;        /* Access point address */
 921        struct sockaddr addr;           /* Destination address (hw/mac) */
 922
 923        struct iw_param param;          /* Other small parameters */
 924        struct iw_point data;           /* Other large parameters */
 925};
 926
 927/*
 928 * The structure to exchange data for ioctl.
 929 * This structure is the same as 'struct ifreq', but (re)defined for
 930 * convenience...
 931 * Do I need to remind you about structure size (32 octets) ?
 932 */
 933struct iwreq {
 934        union
 935        {
 936                char    ifrn_name[IFNAMSIZ];    /* if name, e.g. "eth0" */
 937        } ifr_ifrn;
 938
 939        /* Data part (defined just above) */
 940        union iwreq_data        u;
 941};
 942
 943/* -------------------------- IOCTL DATA -------------------------- */
 944/*
 945 *      For those ioctl which want to exchange mode data that what could
 946 *      fit in the above structure...
 947 */
 948
 949/*
 950 *      Range of parameters
 951 */
 952
 953struct iw_range {
 954        /* Informative stuff (to choose between different interface) */
 955        __u32           throughput;     /* To give an idea... */
 956        /* In theory this value should be the maximum benchmarked
 957         * TCP/IP throughput, because with most of these devices the
 958         * bit rate is meaningless (overhead an co) to estimate how
 959         * fast the connection will go and pick the fastest one.
 960         * I suggest people to play with Netperf or any benchmark...
 961         */
 962
 963        /* NWID (or domain id) */
 964        __u32           min_nwid;       /* Minimal NWID we are able to set */
 965        __u32           max_nwid;       /* Maximal NWID we are able to set */
 966
 967        /* Old Frequency (backward compat - moved lower ) */
 968        __u16           old_num_channels;
 969        __u8            old_num_frequency;
 970
 971        /* Scan capabilities */
 972        __u8            scan_capa;      /* IW_SCAN_CAPA_* bit field */
 973
 974        /* Wireless event capability bitmasks */
 975        __u32           event_capa[6];
 976
 977        /* signal level threshold range */
 978        __s32           sensitivity;
 979
 980        /* Quality of link & SNR stuff */
 981        /* Quality range (link, level, noise)
 982         * If the quality is absolute, it will be in the range [0 ; max_qual],
 983         * if the quality is dBm, it will be in the range [max_qual ; 0].
 984         * Don't forget that we use 8 bit arithmetics... */
 985        struct iw_quality       max_qual;       /* Quality of the link */
 986        /* This should contain the average/typical values of the quality
 987         * indicator. This should be the threshold between a "good" and
 988         * a "bad" link (example : monitor going from green to orange).
 989         * Currently, user space apps like quality monitors don't have any
 990         * way to calibrate the measurement. With this, they can split
 991         * the range between 0 and max_qual in different quality level
 992         * (using a geometric subdivision centered on the average).
 993         * I expect that people doing the user space apps will feedback
 994         * us on which value we need to put in each driver... */
 995        struct iw_quality       avg_qual;       /* Quality of the link */
 996
 997        /* Rates */
 998        __u8            num_bitrates;   /* Number of entries in the list */
 999        __s32           bitrate[IW_MAX_BITRATES];       /* list, in bps */
1000
1001        /* RTS threshold */
1002        __s32           min_rts;        /* Minimal RTS threshold */
1003        __s32           max_rts;        /* Maximal RTS threshold */
1004
1005        /* Frag threshold */
1006        __s32           min_frag;       /* Minimal frag threshold */
1007        __s32           max_frag;       /* Maximal frag threshold */
1008
1009        /* Power Management duration & timeout */
1010        __s32           min_pmp;        /* Minimal PM period */
1011        __s32           max_pmp;        /* Maximal PM period */
1012        __s32           min_pmt;        /* Minimal PM timeout */
1013        __s32           max_pmt;        /* Maximal PM timeout */
1014        __u16           pmp_flags;      /* How to decode max/min PM period */
1015        __u16           pmt_flags;      /* How to decode max/min PM timeout */
1016        __u16           pm_capa;        /* What PM options are supported */
1017
1018        /* Encoder stuff */
1019        __u16   encoding_size[IW_MAX_ENCODING_SIZES];   /* Different token sizes */
1020        __u8    num_encoding_sizes;     /* Number of entry in the list */
1021        __u8    max_encoding_tokens;    /* Max number of tokens */
1022        /* For drivers that need a "login/passwd" form */
1023        __u8    encoding_login_index;   /* token index for login token */
1024
1025        /* Transmit power */
1026        __u16           txpower_capa;   /* What options are supported */
1027        __u8            num_txpower;    /* Number of entries in the list */
1028        __s32           txpower[IW_MAX_TXPOWER];        /* list, in bps */
1029
1030        /* Wireless Extension version info */
1031        __u8            we_version_compiled;    /* Must be WIRELESS_EXT */
1032        __u8            we_version_source;      /* Last update of source */
1033
1034        /* Retry limits and lifetime */
1035        __u16           retry_capa;     /* What retry options are supported */
1036        __u16           retry_flags;    /* How to decode max/min retry limit */
1037        __u16           r_time_flags;   /* How to decode max/min retry life */
1038        __s32           min_retry;      /* Minimal number of retries */
1039        __s32           max_retry;      /* Maximal number of retries */
1040        __s32           min_r_time;     /* Minimal retry lifetime */
1041        __s32           max_r_time;     /* Maximal retry lifetime */
1042
1043        /* Frequency */
1044        __u16           num_channels;   /* Number of channels [0; num - 1] */
1045        __u8            num_frequency;  /* Number of entry in the list */
1046        struct iw_freq  freq[IW_MAX_FREQUENCIES];       /* list */
1047        /* Note : this frequency list doesn't need to fit channel numbers,
1048         * because each entry contain its channel index */
1049
1050        __u32           enc_capa;       /* IW_ENC_CAPA_* bit field */
1051};
1052
1053/*
1054 * Private ioctl interface information
1055 */
1056
1057struct iw_priv_args {
1058        __u32           cmd;            /* Number of the ioctl to issue */
1059        __u16           set_args;       /* Type and number of args */
1060        __u16           get_args;       /* Type and number of args */
1061        char            name[IFNAMSIZ]; /* Name of the extension */
1062};
1063
1064/* ----------------------- WIRELESS EVENTS ----------------------- */
1065/*
1066 * Wireless events are carried through the rtnetlink socket to user
1067 * space. They are encapsulated in the IFLA_WIRELESS field of
1068 * a RTM_NEWLINK message.
1069 */
1070
1071/*
1072 * A Wireless Event. Contains basically the same data as the ioctl...
1073 */
1074struct iw_event {
1075        __u16           len;                    /* Real length of this stuff */
1076        __u16           cmd;                    /* Wireless IOCTL */
1077        union iwreq_data        u;              /* IOCTL fixed payload */
1078};
1079
1080/* Size of the Event prefix (including padding and alignement junk) */
1081#define IW_EV_LCP_LEN   (sizeof(struct iw_event) - sizeof(union iwreq_data))
1082/* Size of the various events */
1083#define IW_EV_CHAR_LEN  (IW_EV_LCP_LEN + IFNAMSIZ)
1084#define IW_EV_UINT_LEN  (IW_EV_LCP_LEN + sizeof(__u32))
1085#define IW_EV_FREQ_LEN  (IW_EV_LCP_LEN + sizeof(struct iw_freq))
1086#define IW_EV_PARAM_LEN (IW_EV_LCP_LEN + sizeof(struct iw_param))
1087#define IW_EV_ADDR_LEN  (IW_EV_LCP_LEN + sizeof(struct sockaddr))
1088#define IW_EV_QUAL_LEN  (IW_EV_LCP_LEN + sizeof(struct iw_quality))
1089
1090/* iw_point events are special. First, the payload (extra data) come at
1091 * the end of the event, so they are bigger than IW_EV_POINT_LEN. Second,
1092 * we omit the pointer, so start at an offset. */
1093#define IW_EV_POINT_OFF (((char *) &(((struct iw_point *) NULL)->length)) - \
1094                          (char *) NULL)
1095#define IW_EV_POINT_LEN (IW_EV_LCP_LEN + sizeof(struct iw_point) - \
1096                         IW_EV_POINT_OFF)
1097
1098
1099/* Size of the Event prefix when packed in stream */
1100#define IW_EV_LCP_PK_LEN        (4)
1101/* Size of the various events when packed in stream */
1102#define IW_EV_CHAR_PK_LEN       (IW_EV_LCP_PK_LEN + IFNAMSIZ)
1103#define IW_EV_UINT_PK_LEN       (IW_EV_LCP_PK_LEN + sizeof(__u32))
1104#define IW_EV_FREQ_PK_LEN       (IW_EV_LCP_PK_LEN + sizeof(struct iw_freq))
1105#define IW_EV_PARAM_PK_LEN      (IW_EV_LCP_PK_LEN + sizeof(struct iw_param))
1106#define IW_EV_ADDR_PK_LEN       (IW_EV_LCP_PK_LEN + sizeof(struct sockaddr))
1107#define IW_EV_QUAL_PK_LEN       (IW_EV_LCP_PK_LEN + sizeof(struct iw_quality))
1108#define IW_EV_POINT_PK_LEN      (IW_EV_LCP_PK_LEN + 4)
1109
1110#endif /* _UAPI_LINUX_WIRELESS_H */
1111