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 _LINUX_WIRELESS_H
12#define _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# include <stddef.h> /* for offsetof */
78
79/***************************** VERSION *****************************/
80/*
81 * This constant is used to know the availability of the wireless
82 * extensions and to know which version of wireless extensions it is
83 * (there is some stuff that will be added in the future...)
84 * I just plan to increment with each new version.
85 */
86#define WIRELESS_EXT 22
87
88/*
89 * Changes :
90 *
91 * V2 to V3
92 * --------
93 * Alan Cox start some incompatibles changes. I've integrated a bit more.
94 * - Encryption renamed to Encode to avoid US regulation problems
95 * - Frequency changed from float to struct to avoid problems on old 386
96 *
97 * V3 to V4
98 * --------
99 * - Add sensitivity
100 *
101 * V4 to V5
102 * --------
103 * - Missing encoding definitions in range
104 * - Access points stuff
105 *
106 * V5 to V6
107 * --------
108 * - 802.11 support (ESSID ioctls)
109 *
110 * V6 to V7
111 * --------
112 * - define IW_ESSID_MAX_SIZE and IW_MAX_AP
113 *
114 * V7 to V8
115 * --------
116 * - Changed my e-mail address
117 * - More 802.11 support (nickname, rate, rts, frag)
118 * - List index in frequencies
119 *
120 * V8 to V9
121 * --------
122 * - Support for 'mode of operation' (ad-hoc, managed...)
123 * - Support for unicast and multicast power saving
124 * - Change encoding to support larger tokens (>64 bits)
125 * - Updated iw_params (disable, flags) and use it for NWID
126 * - Extracted iw_point from iwreq for clarity
127 *
128 * V9 to V10
129 * ---------
130 * - Add PM capability to range structure
131 * - Add PM modifier : MAX/MIN/RELATIVE
132 * - Add encoding option : IW_ENCODE_NOKEY
133 * - Add TxPower ioctls (work like TxRate)
134 *
135 * V10 to V11
136 * ----------
137 * - Add WE version in range (help backward/forward compatibility)
138 * - Add retry ioctls (work like PM)
139 *
140 * V11 to V12
141 * ----------
142 * - Add SIOCSIWSTATS to get /proc/net/wireless programatically
143 * - Add DEV PRIVATE IOCTL to avoid collisions in SIOCDEVPRIVATE space
144 * - Add new statistics (frag, retry, beacon)
145 * - Add average quality (for user space calibration)
146 *
147 * V12 to V13
148 * ----------
149 * - Document creation of new driver API.
150 * - Extract union iwreq_data from struct iwreq (for new driver API).
151 * - Rename SIOCSIWNAME as SIOCSIWCOMMIT
152 *
153 * V13 to V14
154 * ----------
155 * - Wireless Events support : define struct iw_event
156 * - Define additional specific event numbers
157 * - Add "addr" and "param" fields in union iwreq_data
158 * - AP scanning stuff (SIOCSIWSCAN and friends)
159 *
160 * V14 to V15
161 * ----------
162 * - Add IW_PRIV_TYPE_ADDR for struct sockaddr private arg
163 * - Make struct iw_freq signed (both m & e), add explicit padding
164 * - Add IWEVCUSTOM for driver specific event/scanning token
165 * - Add IW_MAX_GET_SPY for driver returning a lot of addresses
166 * - Add IW_TXPOW_RANGE for range of Tx Powers
167 * - Add IWEVREGISTERED & IWEVEXPIRED events for Access Points
168 * - Add IW_MODE_MONITOR for passive monitor
169 *
170 * V15 to V16
171 * ----------
172 * - Increase the number of bitrates in iw_range to 32 (for 802.11g)
173 * - Increase the number of frequencies in iw_range to 32 (for 802.11b+a)
174 * - Reshuffle struct iw_range for increases, add filler
175 * - Increase IW_MAX_AP to 64 for driver returning a lot of addresses
176 * - Remove IW_MAX_GET_SPY because conflict with enhanced spy support
177 * - Add SIOCSIWTHRSPY/SIOCGIWTHRSPY and "struct iw_thrspy"
178 * - Add IW_ENCODE_TEMP and iw_range->encoding_login_index
179 *
180 * V16 to V17
181 * ----------
182 * - Add flags to frequency -> auto/fixed
183 * - Document (struct iw_quality *)->updated, add new flags (INVALID)
184 * - Wireless Event capability in struct iw_range
185 * - Add support for relative TxPower (yick !)
186 *
187 * V17 to V18 (From Jouni Malinen <j@w1.fi>)
188 * ----------
189 * - Add support for WPA/WPA2
190 * - Add extended encoding configuration (SIOCSIWENCODEEXT and
191 * SIOCGIWENCODEEXT)
192 * - Add SIOCSIWGENIE/SIOCGIWGENIE
193 * - Add SIOCSIWMLME
194 * - Add SIOCSIWPMKSA
195 * - Add struct iw_range bit field for supported encoding capabilities
196 * - Add optional scan request parameters for SIOCSIWSCAN
197 * - Add SIOCSIWAUTH/SIOCGIWAUTH for setting authentication and WPA
198 * related parameters (extensible up to 4096 parameter values)
199 * - Add wireless events: IWEVGENIE, IWEVMICHAELMICFAILURE,
200 * IWEVASSOCREQIE, IWEVASSOCRESPIE, IWEVPMKIDCAND
201 *
202 * V18 to V19
203 * ----------
204 * - Remove (struct iw_point *)->pointer from events and streams
205 * - Remove header includes to help user space
206 * - Increase IW_ENCODING_TOKEN_MAX from 32 to 64
207 * - Add IW_QUAL_ALL_UPDATED and IW_QUAL_ALL_INVALID macros
208 * - Add explicit flag to tell stats are in dBm : IW_QUAL_DBM
209 * - Add IW_IOCTL_IDX() and IW_EVENT_IDX() macros
210 *
211 * V19 to V20
212 * ----------
213 * - RtNetlink requests support (SET/GET)
214 *
215 * V20 to V21
216 * ----------
217 * - Remove (struct net_device *)->get_wireless_stats()
218 * - Change length in ESSID and NICK to strlen() instead of strlen()+1
219 * - Add IW_RETRY_SHORT/IW_RETRY_LONG retry modifiers
220 * - Power/Retry relative values no longer * 100000
221 * - Add explicit flag to tell stats are in 802.11k RCPI : IW_QUAL_RCPI
222 *
223 * V21 to V22
224 * ----------
225 * - Prevent leaking of kernel space in stream on 64 bits.
226 */
227
228/**************************** CONSTANTS ****************************/
229
230/* -------------------------- IOCTL LIST -------------------------- */
231
232/* Wireless Identification */
233#define SIOCSIWCOMMIT 0x8B00 /* Commit pending changes to driver */
234#define SIOCGIWNAME 0x8B01 /* get name == wireless protocol */
235/* SIOCGIWNAME is used to verify the presence of Wireless Extensions.
236 * Common values : "IEEE 802.11-DS", "IEEE 802.11-FH", "IEEE 802.11b"...
237 * Don't put the name of your driver there, it's useless. */
238
239/* Basic operations */
240#define SIOCSIWNWID 0x8B02 /* set network id (pre-802.11) */
241#define SIOCGIWNWID 0x8B03 /* get network id (the cell) */
242#define SIOCSIWFREQ 0x8B04 /* set channel/frequency (Hz) */
243#define SIOCGIWFREQ 0x8B05 /* get channel/frequency (Hz) */
244#define SIOCSIWMODE 0x8B06 /* set operation mode */
245#define SIOCGIWMODE 0x8B07 /* get operation mode */
246#define SIOCSIWSENS 0x8B08 /* set sensitivity (dBm) */
247#define SIOCGIWSENS 0x8B09 /* get sensitivity (dBm) */
248
249/* Informative stuff */
250#define SIOCSIWRANGE 0x8B0A /* Unused */
251#define SIOCGIWRANGE 0x8B0B /* Get range of parameters */
252#define SIOCSIWPRIV 0x8B0C /* Unused */
253#define SIOCGIWPRIV 0x8B0D /* get private ioctl interface info */
254#define SIOCSIWSTATS 0x8B0E /* Unused */
255#define SIOCGIWSTATS 0x8B0F /* Get /proc/net/wireless stats */
256/* SIOCGIWSTATS is strictly used between user space and the kernel, and
257 * is never passed to the driver (i.e. the driver will never see it). */
258
259/* Spy support (statistics per MAC address - used for Mobile IP support) */
260#define SIOCSIWSPY 0x8B10 /* set spy addresses */
261#define SIOCGIWSPY 0x8B11 /* get spy info (quality of link) */
262#define SIOCSIWTHRSPY 0x8B12 /* set spy threshold (spy event) */
263#define SIOCGIWTHRSPY 0x8B13 /* get spy threshold */
264
265/* Access Point manipulation */
266#define SIOCSIWAP 0x8B14 /* set access point MAC addresses */
267#define SIOCGIWAP 0x8B15 /* get access point MAC addresses */
268#define SIOCGIWAPLIST 0x8B17 /* Deprecated in favor of scanning */
269#define SIOCSIWSCAN 0x8B18 /* trigger scanning (list cells) */
270#define SIOCGIWSCAN 0x8B19 /* get scanning results */
271
272/* 802.11 specific support */
273#define SIOCSIWESSID 0x8B1A /* set ESSID (network name) */
274#define SIOCGIWESSID 0x8B1B /* get ESSID */
275#define SIOCSIWNICKN 0x8B1C /* set node name/nickname */
276#define SIOCGIWNICKN 0x8B1D /* get node name/nickname */
277/* As the ESSID and NICKN are strings up to 32 bytes long, it doesn't fit
278 * within the 'iwreq' structure, so we need to use the 'data' member to
279 * point to a string in user space, like it is done for RANGE... */
280
281/* Other parameters useful in 802.11 and some other devices */
282#define SIOCSIWRATE 0x8B20 /* set default bit rate (bps) */
283#define SIOCGIWRATE 0x8B21 /* get default bit rate (bps) */
284#define SIOCSIWRTS 0x8B22 /* set RTS/CTS threshold (bytes) */
285#define SIOCGIWRTS 0x8B23 /* get RTS/CTS threshold (bytes) */
286#define SIOCSIWFRAG 0x8B24 /* set fragmentation thr (bytes) */
287#define SIOCGIWFRAG 0x8B25 /* get fragmentation thr (bytes) */
288#define SIOCSIWTXPOW 0x8B26 /* set transmit power (dBm) */
289#define SIOCGIWTXPOW 0x8B27 /* get transmit power (dBm) */
290#define SIOCSIWRETRY 0x8B28 /* set retry limits and lifetime */
291#define SIOCGIWRETRY 0x8B29 /* get retry limits and lifetime */
292
293/* Encoding stuff (scrambling, hardware security, WEP...) */
294#define SIOCSIWENCODE 0x8B2A /* set encoding token & mode */
295#define SIOCGIWENCODE 0x8B2B /* get encoding token & mode */
296/* Power saving stuff (power management, unicast and multicast) */
297#define SIOCSIWPOWER 0x8B2C /* set Power Management settings */
298#define SIOCGIWPOWER 0x8B2D /* get Power Management settings */
299
300/* WPA : Generic IEEE 802.11 informatiom element (e.g., for WPA/RSN/WMM).
301 * This ioctl uses struct iw_point and data buffer that includes IE id and len
302 * fields. More than one IE may be included in the request. Setting the generic
303 * IE to empty buffer (len=0) removes the generic IE from the driver. Drivers
304 * are allowed to generate their own WPA/RSN IEs, but in these cases, drivers
305 * are required to report the used IE as a wireless event, e.g., when
306 * associating with an AP. */
307#define SIOCSIWGENIE 0x8B30 /* set generic IE */
308#define SIOCGIWGENIE 0x8B31 /* get generic IE */
309
310/* WPA : IEEE 802.11 MLME requests */
311#define SIOCSIWMLME 0x8B16 /* request MLME operation; uses
312 * struct iw_mlme */
313/* WPA : Authentication mode parameters */
314#define SIOCSIWAUTH 0x8B32 /* set authentication mode params */
315#define SIOCGIWAUTH 0x8B33 /* get authentication mode params */
316
317/* WPA : Extended version of encoding configuration */
318#define SIOCSIWENCODEEXT 0x8B34 /* set encoding token & mode */
319#define SIOCGIWENCODEEXT 0x8B35 /* get encoding token & mode */
320
321/* WPA2 : PMKSA cache management */
322#define SIOCSIWPMKSA 0x8B36 /* PMKSA cache operation */
323
324/* -------------------- DEV PRIVATE IOCTL LIST -------------------- */
325
326/* These 32 ioctl are wireless device private, for 16 commands.
327 * Each driver is free to use them for whatever purpose it chooses,
328 * however the driver *must* export the description of those ioctls
329 * with SIOCGIWPRIV and *must* use arguments as defined below.
330 * If you don't follow those rules, DaveM is going to hate you (reason :
331 * it make mixed 32/64bit operation impossible).
332 */
333#define SIOCIWFIRSTPRIV 0x8BE0
334#define SIOCIWLASTPRIV 0x8BFF
335/* Previously, we were using SIOCDEVPRIVATE, but we now have our
336 * separate range because of collisions with other tools such as
337 * 'mii-tool'.
338 * We now have 32 commands, so a bit more space ;-).
339 * Also, all 'even' commands are only usable by root and don't return the
340 * content of ifr/iwr to user (but you are not obliged to use the set/get
341 * convention, just use every other two command). More details in iwpriv.c.
342 * And I repeat : you are not forced to use them with iwpriv, but you
343 * must be compliant with it.
344 */
345
346/* ------------------------- IOCTL STUFF ------------------------- */
347
348/* The first and the last (range) */
349#define SIOCIWFIRST 0x8B00
350#define SIOCIWLAST SIOCIWLASTPRIV /* 0x8BFF */
351#define IW_IOCTL_IDX(cmd) ((cmd) - SIOCIWFIRST)
352#define IW_HANDLER(id, func) \
353 [IW_IOCTL_IDX(id)] = func
354
355/* Odd : get (world access), even : set (root access) */
356#define IW_IS_SET(cmd) (!((cmd) & 0x1))
357#define IW_IS_GET(cmd) ((cmd) & 0x1)
358
359/* ----------------------- WIRELESS EVENTS ----------------------- */
360/* Those are *NOT* ioctls, do not issue request on them !!! */
361/* Most events use the same identifier as ioctl requests */
362
363#define IWEVTXDROP 0x8C00 /* Packet dropped to excessive retry */
364#define IWEVQUAL 0x8C01 /* Quality part of statistics (scan) */
365#define IWEVCUSTOM 0x8C02 /* Driver specific ascii string */
366#define IWEVREGISTERED 0x8C03 /* Discovered a new node (AP mode) */
367#define IWEVEXPIRED 0x8C04 /* Expired a node (AP mode) */
368#define IWEVGENIE 0x8C05 /* Generic IE (WPA, RSN, WMM, ..)
369 * (scan results); This includes id and
370 * length fields. One IWEVGENIE may
371 * contain more than one IE. Scan
372 * results may contain one or more
373 * IWEVGENIE events. */
374#define IWEVMICHAELMICFAILURE 0x8C06 /* Michael MIC failure
375 * (struct iw_michaelmicfailure)
376 */
377#define IWEVASSOCREQIE 0x8C07 /* IEs used in (Re)Association Request.
378 * The data includes id and length
379 * fields and may contain more than one
380 * IE. This event is required in
381 * Managed mode if the driver
382 * generates its own WPA/RSN IE. This
383 * should be sent just before
384 * IWEVREGISTERED event for the
385 * association. */
386#define IWEVASSOCRESPIE 0x8C08 /* IEs used in (Re)Association
387 * Response. The data includes id and
388 * length fields and may contain more
389 * than one IE. This may be sent
390 * between IWEVASSOCREQIE and
391 * IWEVREGISTERED events for the
392 * association. */
393#define IWEVPMKIDCAND 0x8C09 /* PMKID candidate for RSN
394 * pre-authentication
395 * (struct iw_pmkid_cand) */
396
397#define IWEVFIRST 0x8C00
398#define IW_EVENT_IDX(cmd) ((cmd) - IWEVFIRST)
399
400/* ------------------------- PRIVATE INFO ------------------------- */
401/*
402 * The following is used with SIOCGIWPRIV. It allow a driver to define
403 * the interface (name, type of data) for its private ioctl.
404 * Privates ioctl are SIOCIWFIRSTPRIV -> SIOCIWLASTPRIV
405 */
406
407#define IW_PRIV_TYPE_MASK 0x7000 /* Type of arguments */
408#define IW_PRIV_TYPE_NONE 0x0000
409#define IW_PRIV_TYPE_BYTE 0x1000 /* Char as number */
410#define IW_PRIV_TYPE_CHAR 0x2000 /* Char as character */
411#define IW_PRIV_TYPE_INT 0x4000 /* 32 bits int */
412#define IW_PRIV_TYPE_FLOAT 0x5000 /* struct iw_freq */
413#define IW_PRIV_TYPE_ADDR 0x6000 /* struct sockaddr */
414
415#define IW_PRIV_SIZE_FIXED 0x0800 /* Variable or fixed number of args */
416
417#define IW_PRIV_SIZE_MASK 0x07FF /* Max number of those args */
418
419/*
420 * Note : if the number of args is fixed and the size < 16 octets,
421 * instead of passing a pointer we will put args in the iwreq struct...
422 */
423
424/* ----------------------- OTHER CONSTANTS ----------------------- */
425
426/* Maximum frequencies in the range struct */
427#define IW_MAX_FREQUENCIES 32
428/* Note : if you have something like 80 frequencies,
429 * don't increase this constant and don't fill the frequency list.
430 * The user will be able to set by channel anyway... */
431
432/* Maximum bit rates in the range struct */
433#define IW_MAX_BITRATES 32
434
435/* Maximum tx powers in the range struct */
436#define IW_MAX_TXPOWER 8
437/* Note : if you more than 8 TXPowers, just set the max and min or
438 * a few of them in the struct iw_range. */
439
440/* Maximum of address that you may set with SPY */
441#define IW_MAX_SPY 8
442
443/* Maximum of address that you may get in the
444 list of access points in range */
445#define IW_MAX_AP 64
446
447/* Maximum size of the ESSID and NICKN strings */
448#define IW_ESSID_MAX_SIZE 32
449
450/* Modes of operation */
451#define IW_MODE_AUTO 0 /* Let the driver decides */
452#define IW_MODE_ADHOC 1 /* Single cell network */
453#define IW_MODE_INFRA 2 /* Multi cell network, roaming, ... */
454#define IW_MODE_MASTER 3 /* Synchronisation master or Access Point */
455#define IW_MODE_REPEAT 4 /* Wireless Repeater (forwarder) */
456#define IW_MODE_SECOND 5 /* Secondary master/repeater (backup) */
457#define IW_MODE_MONITOR 6 /* Passive monitor (listen only) */
458#define IW_MODE_MESH 7 /* Mesh (IEEE 802.11s) network */
459
460/* Statistics flags (bitmask in updated) */
461#define IW_QUAL_QUAL_UPDATED 0x01 /* Value was updated since last read */
462#define IW_QUAL_LEVEL_UPDATED 0x02
463#define IW_QUAL_NOISE_UPDATED 0x04
464#define IW_QUAL_ALL_UPDATED 0x07
465#define IW_QUAL_DBM 0x08 /* Level + Noise are dBm */
466#define IW_QUAL_QUAL_INVALID 0x10 /* Driver doesn't provide value */
467#define IW_QUAL_LEVEL_INVALID 0x20
468#define IW_QUAL_NOISE_INVALID 0x40
469#define IW_QUAL_RCPI 0x80 /* Level + Noise are 802.11k RCPI */
470#define IW_QUAL_ALL_INVALID 0x70
471
472/* Frequency flags */
473#define IW_FREQ_AUTO 0x00 /* Let the driver decides */
474#define IW_FREQ_FIXED 0x01 /* Force a specific value */
475
476/* Maximum number of size of encoding token available
477 * they are listed in the range structure */
478#define IW_MAX_ENCODING_SIZES 8
479
480/* Maximum size of the encoding token in bytes */
481#define IW_ENCODING_TOKEN_MAX 64 /* 512 bits (for now) */
482
483/* Flags for encoding (along with the token) */
484#define IW_ENCODE_INDEX 0x00FF /* Token index (if needed) */
485#define IW_ENCODE_FLAGS 0xFF00 /* Flags defined below */
486#define IW_ENCODE_MODE 0xF000 /* Modes defined below */
487#define IW_ENCODE_DISABLED 0x8000 /* Encoding disabled */
488#define IW_ENCODE_ENABLED 0x0000 /* Encoding enabled */
489#define IW_ENCODE_RESTRICTED 0x4000 /* Refuse non-encoded packets */
490#define IW_ENCODE_OPEN 0x2000 /* Accept non-encoded packets */
491#define IW_ENCODE_NOKEY 0x0800 /* Key is write only, so not present */
492#define IW_ENCODE_TEMP 0x0400 /* Temporary key */
493
494/* Power management flags available (along with the value, if any) */
495#define IW_POWER_ON 0x0000 /* No details... */
496#define IW_POWER_TYPE 0xF000 /* Type of parameter */
497#define IW_POWER_PERIOD 0x1000 /* Value is a period/duration of */
498#define IW_POWER_TIMEOUT 0x2000 /* Value is a timeout (to go asleep) */
499#define IW_POWER_MODE 0x0F00 /* Power Management mode */
500#define IW_POWER_UNICAST_R 0x0100 /* Receive only unicast messages */
501#define IW_POWER_MULTICAST_R 0x0200 /* Receive only multicast messages */
502#define IW_POWER_ALL_R 0x0300 /* Receive all messages though PM */
503#define IW_POWER_FORCE_S 0x0400 /* Force PM procedure for sending unicast */
504#define IW_POWER_REPEATER 0x0800 /* Repeat broadcast messages in PM period */
505#define IW_POWER_MODIFIER 0x000F /* Modify a parameter */
506#define IW_POWER_MIN 0x0001 /* Value is a minimum */
507#define IW_POWER_MAX 0x0002 /* Value is a maximum */
508#define IW_POWER_RELATIVE 0x0004 /* Value is not in seconds/ms/us */
509
510/* Transmit Power flags available */
511#define IW_TXPOW_TYPE 0x00FF /* Type of value */
512#define IW_TXPOW_DBM 0x0000 /* Value is in dBm */
513#define IW_TXPOW_MWATT 0x0001 /* Value is in mW */
514#define IW_TXPOW_RELATIVE 0x0002 /* Value is in arbitrary units */
515#define IW_TXPOW_RANGE 0x1000 /* Range of value between min/max */
516
517/* Retry limits and lifetime flags available */
518#define IW_RETRY_ON 0x0000 /* No details... */
519#define IW_RETRY_TYPE 0xF000 /* Type of parameter */
520#define IW_RETRY_LIMIT 0x1000 /* Maximum number of retries*/
521#define IW_RETRY_LIFETIME 0x2000 /* Maximum duration of retries in us */
522#define IW_RETRY_MODIFIER 0x00FF /* Modify a parameter */
523#define IW_RETRY_MIN 0x0001 /* Value is a minimum */
524#define IW_RETRY_MAX 0x0002 /* Value is a maximum */
525#define IW_RETRY_RELATIVE 0x0004 /* Value is not in seconds/ms/us */
526#define IW_RETRY_SHORT 0x0010 /* Value is for short packets */
527#define IW_RETRY_LONG 0x0020 /* Value is for long packets */
528
529/* Scanning request flags */
530#define IW_SCAN_DEFAULT 0x0000 /* Default scan of the driver */
531#define IW_SCAN_ALL_ESSID 0x0001 /* Scan all ESSIDs */
532#define IW_SCAN_THIS_ESSID 0x0002 /* Scan only this ESSID */
533#define IW_SCAN_ALL_FREQ 0x0004 /* Scan all Frequencies */
534#define IW_SCAN_THIS_FREQ 0x0008 /* Scan only this Frequency */
535#define IW_SCAN_ALL_MODE 0x0010 /* Scan all Modes */
536#define IW_SCAN_THIS_MODE 0x0020 /* Scan only this Mode */
537#define IW_SCAN_ALL_RATE 0x0040 /* Scan all Bit-Rates */
538#define IW_SCAN_THIS_RATE 0x0080 /* Scan only this Bit-Rate */
539/* struct iw_scan_req scan_type */
540#define IW_SCAN_TYPE_ACTIVE 0
541#define IW_SCAN_TYPE_PASSIVE 1
542/* Maximum size of returned data */
543#define IW_SCAN_MAX_DATA 4096 /* In bytes */
544
545/* Scan capability flags - in (struct iw_range *)->scan_capa */
546#define IW_SCAN_CAPA_NONE 0x00
547#define IW_SCAN_CAPA_ESSID 0x01
548#define IW_SCAN_CAPA_BSSID 0x02
549#define IW_SCAN_CAPA_CHANNEL 0x04
550#define IW_SCAN_CAPA_MODE 0x08
551#define IW_SCAN_CAPA_RATE 0x10
552#define IW_SCAN_CAPA_TYPE 0x20
553#define IW_SCAN_CAPA_TIME 0x40
554
555/* Max number of char in custom event - use multiple of them if needed */
556#define IW_CUSTOM_MAX 256 /* In bytes */
557
558/* Generic information element */
559#define IW_GENERIC_IE_MAX 1024
560
561/* MLME requests (SIOCSIWMLME / struct iw_mlme) */
562#define IW_MLME_DEAUTH 0
563#define IW_MLME_DISASSOC 1
564#define IW_MLME_AUTH 2
565#define IW_MLME_ASSOC 3
566
567/* SIOCSIWAUTH/SIOCGIWAUTH struct iw_param flags */
568#define IW_AUTH_INDEX 0x0FFF
569#define IW_AUTH_FLAGS 0xF000
570/* SIOCSIWAUTH/SIOCGIWAUTH parameters (0 .. 4095)
571 * (IW_AUTH_INDEX mask in struct iw_param flags; this is the index of the
572 * parameter that is being set/get to; value will be read/written to
573 * struct iw_param value field) */
574#define IW_AUTH_WPA_VERSION 0
575#define IW_AUTH_CIPHER_PAIRWISE 1
576#define IW_AUTH_CIPHER_GROUP 2
577#define IW_AUTH_KEY_MGMT 3
578#define IW_AUTH_TKIP_COUNTERMEASURES 4
579#define IW_AUTH_DROP_UNENCRYPTED 5
580#define IW_AUTH_80211_AUTH_ALG 6
581#define IW_AUTH_WPA_ENABLED 7
582#define IW_AUTH_RX_UNENCRYPTED_EAPOL 8
583#define IW_AUTH_ROAMING_CONTROL 9
584#define IW_AUTH_PRIVACY_INVOKED 10
585#define IW_AUTH_CIPHER_GROUP_MGMT 11
586#define IW_AUTH_MFP 12
587
588/* IW_AUTH_WPA_VERSION values (bit field) */
589#define IW_AUTH_WPA_VERSION_DISABLED 0x00000001
590#define IW_AUTH_WPA_VERSION_WPA 0x00000002
591#define IW_AUTH_WPA_VERSION_WPA2 0x00000004
592
593/* IW_AUTH_PAIRWISE_CIPHER, IW_AUTH_GROUP_CIPHER, and IW_AUTH_CIPHER_GROUP_MGMT
594 * values (bit field) */
595#define IW_AUTH_CIPHER_NONE 0x00000001
596#define IW_AUTH_CIPHER_WEP40 0x00000002
597#define IW_AUTH_CIPHER_TKIP 0x00000004
598#define IW_AUTH_CIPHER_CCMP 0x00000008
599#define IW_AUTH_CIPHER_WEP104 0x00000010
600#define IW_AUTH_CIPHER_AES_CMAC 0x00000020
601
602/* IW_AUTH_KEY_MGMT values (bit field) */
603#define IW_AUTH_KEY_MGMT_802_1X 1
604#define IW_AUTH_KEY_MGMT_PSK 2
605
606/* IW_AUTH_80211_AUTH_ALG values (bit field) */
607#define IW_AUTH_ALG_OPEN_SYSTEM 0x00000001
608#define IW_AUTH_ALG_SHARED_KEY 0x00000002
609#define IW_AUTH_ALG_LEAP 0x00000004
610
611/* IW_AUTH_ROAMING_CONTROL values */
612#define IW_AUTH_ROAMING_ENABLE 0 /* driver/firmware based roaming */
613#define IW_AUTH_ROAMING_DISABLE 1 /* user space program used for roaming
614 * control */
615
616/* IW_AUTH_MFP (management frame protection) values */
617#define IW_AUTH_MFP_DISABLED 0 /* MFP disabled */
618#define IW_AUTH_MFP_OPTIONAL 1 /* MFP optional */
619#define IW_AUTH_MFP_REQUIRED 2 /* MFP required */
620
621/* SIOCSIWENCODEEXT definitions */
622#define IW_ENCODE_SEQ_MAX_SIZE 8
623/* struct iw_encode_ext ->alg */
624#define IW_ENCODE_ALG_NONE 0
625#define IW_ENCODE_ALG_WEP 1
626#define IW_ENCODE_ALG_TKIP 2
627#define IW_ENCODE_ALG_CCMP 3
628#define IW_ENCODE_ALG_PMK 4
629#define IW_ENCODE_ALG_AES_CMAC 5
630/* struct iw_encode_ext ->ext_flags */
631#define IW_ENCODE_EXT_TX_SEQ_VALID 0x00000001
632#define IW_ENCODE_EXT_RX_SEQ_VALID 0x00000002
633#define IW_ENCODE_EXT_GROUP_KEY 0x00000004
634#define IW_ENCODE_EXT_SET_TX_KEY 0x00000008
635
636/* IWEVMICHAELMICFAILURE : struct iw_michaelmicfailure ->flags */
637#define IW_MICFAILURE_KEY_ID 0x00000003 /* Key ID 0..3 */
638#define IW_MICFAILURE_GROUP 0x00000004
639#define IW_MICFAILURE_PAIRWISE 0x00000008
640#define IW_MICFAILURE_STAKEY 0x00000010
641#define IW_MICFAILURE_COUNT 0x00000060 /* 1 or 2 (0 = count not supported)
642 */
643
644/* Bit field values for enc_capa in struct iw_range */
645#define IW_ENC_CAPA_WPA 0x00000001
646#define IW_ENC_CAPA_WPA2 0x00000002
647#define IW_ENC_CAPA_CIPHER_TKIP 0x00000004
648#define IW_ENC_CAPA_CIPHER_CCMP 0x00000008
649#define IW_ENC_CAPA_4WAY_HANDSHAKE 0x00000010
650
651/* Event capability macros - in (struct iw_range *)->event_capa
652 * Because we have more than 32 possible events, we use an array of
653 * 32 bit bitmasks. Note : 32 bits = 0x20 = 2^5. */
654#define IW_EVENT_CAPA_BASE(cmd) ((cmd >= SIOCIWFIRSTPRIV) ? \
655 (cmd - SIOCIWFIRSTPRIV + 0x60) : \
656 (cmd - SIOCIWFIRST))
657#define IW_EVENT_CAPA_INDEX(cmd) (IW_EVENT_CAPA_BASE(cmd) >> 5)
658#define IW_EVENT_CAPA_MASK(cmd) (1 << (IW_EVENT_CAPA_BASE(cmd) & 0x1F))
659/* Event capability constants - event autogenerated by the kernel
660 * This list is valid for most 802.11 devices, customise as needed... */
661#define IW_EVENT_CAPA_K_0 (IW_EVENT_CAPA_MASK(0x8B04) | \
662 IW_EVENT_CAPA_MASK(0x8B06) | \
663 IW_EVENT_CAPA_MASK(0x8B1A))
664#define IW_EVENT_CAPA_K_1 (IW_EVENT_CAPA_MASK(0x8B2A))
665/* "Easy" macro to set events in iw_range (less efficient) */
666#define IW_EVENT_CAPA_SET(event_capa, cmd) (event_capa[IW_EVENT_CAPA_INDEX(cmd)] |= IW_EVENT_CAPA_MASK(cmd))
667#define IW_EVENT_CAPA_SET_KERNEL(event_capa) {event_capa[0] |= IW_EVENT_CAPA_K_0; event_capa[1] |= IW_EVENT_CAPA_K_1; }
668
669
670/****************************** TYPES ******************************/
671
672/* --------------------------- SUBTYPES --------------------------- */
673/*
674 * Generic format for most parameters that fit in an int
675 */
676struct iw_param {
677 __s32 value; /* The value of the parameter itself */
678 __u8 fixed; /* Hardware should not use auto select */
679 __u8 disabled; /* Disable the feature */
680 __u16 flags; /* Various specifc flags (if any) */
681};
682
683/*
684 * For all data larger than 16 octets, we need to use a
685 * pointer to memory allocated in user space.
686 */
687struct iw_point {
688 void *pointer; /* Pointer to the data (in user space) */
689 __u16 length; /* number of fields or size in bytes */
690 __u16 flags; /* Optional params */
691};
692
693
694/*
695 * A frequency
696 * For numbers lower than 10^9, we encode the number in 'm' and
697 * set 'e' to 0
698 * For number greater than 10^9, we divide it by the lowest power
699 * of 10 to get 'm' lower than 10^9, with 'm'= f / (10^'e')...
700 * The power of 10 is in 'e', the result of the division is in 'm'.
701 */
702struct iw_freq {
703 __s32 m; /* Mantissa */
704 __s16 e; /* Exponent */
705 __u8 i; /* List index (when in range struct) */
706 __u8 flags; /* Flags (fixed/auto) */
707};
708
709/*
710 * Quality of the link
711 */
712struct iw_quality {
713 __u8 qual; /* link quality (%retries, SNR,
714 %missed beacons or better...) */
715 __u8 level; /* signal level (dBm) */
716 __u8 noise; /* noise level (dBm) */
717 __u8 updated; /* Flags to know if updated */
718};
719
720/*
721 * Packet discarded in the wireless adapter due to
722 * "wireless" specific problems...
723 * Note : the list of counter and statistics in net_device_stats
724 * is already pretty exhaustive, and you should use that first.
725 * This is only additional stats...
726 */
727struct iw_discarded {
728 __u32 nwid; /* Rx : Wrong nwid/essid */
729 __u32 code; /* Rx : Unable to code/decode (WEP) */
730 __u32 fragment; /* Rx : Can't perform MAC reassembly */
731 __u32 retries; /* Tx : Max MAC retries num reached */
732 __u32 misc; /* Others cases */
733};
734
735/*
736 * Packet/Time period missed in the wireless adapter due to
737 * "wireless" specific problems...
738 */
739struct iw_missed {
740 __u32 beacon; /* Missed beacons/superframe */
741};
742
743/*
744 * Quality range (for spy threshold)
745 */
746struct iw_thrspy {
747 struct sockaddr addr; /* Source address (hw/mac) */
748 struct iw_quality qual; /* Quality of the link */
749 struct iw_quality low; /* Low threshold */
750 struct iw_quality high; /* High threshold */
751};
752
753/*
754 * Optional data for scan request
755 *
756 * Note: these optional parameters are controlling parameters for the
757 * scanning behavior, these do not apply to getting scan results
758 * (SIOCGIWSCAN). Drivers are expected to keep a local BSS table and
759 * provide a merged results with all BSSes even if the previous scan
760 * request limited scanning to a subset, e.g., by specifying an SSID.
761 * Especially, scan results are required to include an entry for the
762 * current BSS if the driver is in Managed mode and associated with an AP.
763 */
764struct iw_scan_req {
765 __u8 scan_type; /* IW_SCAN_TYPE_{ACTIVE,PASSIVE} */
766 __u8 essid_len;
767 __u8 num_channels; /* num entries in channel_list;
768 * 0 = scan all allowed channels */
769 __u8 flags; /* reserved as padding; use zero, this may
770 * be used in the future for adding flags
771 * to request different scan behavior */
772 struct sockaddr bssid; /* ff:ff:ff:ff:ff:ff for broadcast BSSID or
773 * individual address of a specific BSS */
774
775 /*
776 * Use this ESSID if IW_SCAN_THIS_ESSID flag is used instead of using
777 * the current ESSID. This allows scan requests for specific ESSID
778 * without having to change the current ESSID and potentially breaking
779 * the current association.
780 */
781 __u8 essid[IW_ESSID_MAX_SIZE];
782
783 /*
784 * Optional parameters for changing the default scanning behavior.
785 * These are based on the MLME-SCAN.request from IEEE Std 802.11.
786 * TU is 1.024 ms. If these are set to 0, driver is expected to use
787 * reasonable default values. min_channel_time defines the time that
788 * will be used to wait for the first reply on each channel. If no
789 * replies are received, next channel will be scanned after this. If
790 * replies are received, total time waited on the channel is defined by
791 * max_channel_time.
792 */
793 __u32 min_channel_time; /* in TU */
794 __u32 max_channel_time; /* in TU */
795
796 struct iw_freq channel_list[IW_MAX_FREQUENCIES];
797};
798
799/* ------------------------- WPA SUPPORT ------------------------- */
800
801/*
802 * Extended data structure for get/set encoding (this is used with
803 * SIOCSIWENCODEEXT/SIOCGIWENCODEEXT. struct iw_point and IW_ENCODE_*
804 * flags are used in the same way as with SIOCSIWENCODE/SIOCGIWENCODE and
805 * only the data contents changes (key data -> this structure, including
806 * key data).
807 *
808 * If the new key is the first group key, it will be set as the default
809 * TX key. Otherwise, default TX key index is only changed if
810 * IW_ENCODE_EXT_SET_TX_KEY flag is set.
811 *
812 * Key will be changed with SIOCSIWENCODEEXT in all cases except for
813 * special "change TX key index" operation which is indicated by setting
814 * key_len = 0 and ext_flags |= IW_ENCODE_EXT_SET_TX_KEY.
815 *
816 * tx_seq/rx_seq are only used when respective
817 * IW_ENCODE_EXT_{TX,RX}_SEQ_VALID flag is set in ext_flags. Normal
818 * TKIP/CCMP operation is to set RX seq with SIOCSIWENCODEEXT and start
819 * TX seq from zero whenever key is changed. SIOCGIWENCODEEXT is normally
820 * used only by an Authenticator (AP or an IBSS station) to get the
821 * current TX sequence number. Using TX_SEQ_VALID for SIOCSIWENCODEEXT and
822 * RX_SEQ_VALID for SIOCGIWENCODEEXT are optional, but can be useful for
823 * debugging/testing.
824 */
825struct iw_encode_ext {
826 __u32 ext_flags; /* IW_ENCODE_EXT_* */
827 __u8 tx_seq[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */
828 __u8 rx_seq[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */
829 struct sockaddr addr; /* ff:ff:ff:ff:ff:ff for broadcast/multicast
830 * (group) keys or unicast address for
831 * individual keys */
832 __u16 alg; /* IW_ENCODE_ALG_* */
833 __u16 key_len;
834 __u8 key[0];
835};
836
837/* SIOCSIWMLME data */
838struct iw_mlme {
839 __u16 cmd; /* IW_MLME_* */
840 __u16 reason_code;
841 struct sockaddr addr;
842};
843
844/* SIOCSIWPMKSA data */
845#define IW_PMKSA_ADD 1
846#define IW_PMKSA_REMOVE 2
847#define IW_PMKSA_FLUSH 3
848
849#define IW_PMKID_LEN 16
850
851struct iw_pmksa {
852 __u32 cmd; /* IW_PMKSA_* */
853 struct sockaddr bssid;
854 __u8 pmkid[IW_PMKID_LEN];
855};
856
857/* IWEVMICHAELMICFAILURE data */
858struct iw_michaelmicfailure {
859 __u32 flags;
860 struct sockaddr src_addr;
861 __u8 tsc[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */
862};
863
864/* IWEVPMKIDCAND data */
865#define IW_PMKID_CAND_PREAUTH 0x00000001 /* RNS pre-authentication enabled */
866struct iw_pmkid_cand {
867 __u32 flags; /* IW_PMKID_CAND_* */
868 __u32 index; /* the smaller the index, the higher the
869 * priority */
870 struct sockaddr bssid;
871};
872
873/* ------------------------ WIRELESS STATS ------------------------ */
874/*
875 * Wireless statistics (used for /proc/net/wireless)
876 */
877struct iw_statistics {
878 __u16 status; /* Status
879 * - device dependent for now */
880
881 struct iw_quality qual; /* Quality of the link
882 * (instant/mean/max) */
883 struct iw_discarded discard; /* Packet discarded counts */
884 struct iw_missed miss; /* Packet missed counts */
885};
886
887/* ------------------------ IOCTL REQUEST ------------------------ */
888/*
889 * This structure defines the payload of an ioctl, and is used
890 * below.
891 *
892 * Note that this structure should fit on the memory footprint
893 * of iwreq (which is the same as ifreq), which mean a max size of
894 * 16 octets = 128 bits. Warning, pointers might be 64 bits wide...
895 * You should check this when increasing the structures defined
896 * above in this file...
897 */
898union iwreq_data {
899 /* Config - generic */
900 char name[IFNAMSIZ];
901 /* Name : used to verify the presence of wireless extensions.
902 * Name of the protocol/provider... */
903
904 struct iw_point essid; /* Extended network name */
905 struct iw_param nwid; /* network id (or domain - the cell) */
906 struct iw_freq freq; /* frequency or channel :
907 * 0-1000 = channel
908 * > 1000 = frequency in Hz */
909
910 struct iw_param sens; /* signal level threshold */
911 struct iw_param bitrate; /* default bit rate */
912 struct iw_param txpower; /* default transmit power */
913 struct iw_param rts; /* RTS threshold */
914 struct iw_param frag; /* Fragmentation threshold */
915 __u32 mode; /* Operation mode */
916 struct iw_param retry; /* Retry limits & lifetime */
917
918 struct iw_point encoding; /* Encoding stuff : tokens */
919 struct iw_param power; /* PM duration/timeout */
920 struct iw_quality qual; /* Quality part of statistics */
921
922 struct sockaddr ap_addr; /* Access point address */
923 struct sockaddr addr; /* Destination address (hw/mac) */
924
925 struct iw_param param; /* Other small parameters */
926 struct iw_point data; /* Other large parameters */
927};
928
929/*
930 * The structure to exchange data for ioctl.
931 * This structure is the same as 'struct ifreq', but (re)defined for
932 * convenience...
933 * Do I need to remind you about structure size (32 octets) ?
934 */
935struct iwreq {
936 union
937 {
938 char ifrn_name[IFNAMSIZ]; /* if name, e.g. "eth0" */
939 } ifr_ifrn;
940
941 /* Data part (defined just above) */
942 union iwreq_data u;
943};
944
945/* -------------------------- IOCTL DATA -------------------------- */
946/*
947 * For those ioctl which want to exchange mode data that what could
948 * fit in the above structure...
949 */
950
951/*
952 * Range of parameters
953 */
954
955struct iw_range {
956 /* Informative stuff (to choose between different interface) */
957 __u32 throughput; /* To give an idea... */
958 /* In theory this value should be the maximum benchmarked
959 * TCP/IP throughput, because with most of these devices the
960 * bit rate is meaningless (overhead an co) to estimate how
961 * fast the connection will go and pick the fastest one.
962 * I suggest people to play with Netperf or any benchmark...
963 */
964
965 /* NWID (or domain id) */
966 __u32 min_nwid; /* Minimal NWID we are able to set */
967 __u32 max_nwid; /* Maximal NWID we are able to set */
968
969 /* Old Frequency (backward compat - moved lower ) */
970 __u16 old_num_channels;
971 __u8 old_num_frequency;
972
973 /* Scan capabilities */
974 __u8 scan_capa; /* IW_SCAN_CAPA_* bit field */
975
976 /* Wireless event capability bitmasks */
977 __u32 event_capa[6];
978
979 /* signal level threshold range */
980 __s32 sensitivity;
981
982 /* Quality of link & SNR stuff */
983 /* Quality range (link, level, noise)
984 * If the quality is absolute, it will be in the range [0 ; max_qual],
985 * if the quality is dBm, it will be in the range [max_qual ; 0].
986 * Don't forget that we use 8 bit arithmetics... */
987 struct iw_quality max_qual; /* Quality of the link */
988 /* This should contain the average/typical values of the quality
989 * indicator. This should be the threshold between a "good" and
990 * a "bad" link (example : monitor going from green to orange).
991 * Currently, user space apps like quality monitors don't have any
992 * way to calibrate the measurement. With this, they can split
993 * the range between 0 and max_qual in different quality level
994 * (using a geometric subdivision centered on the average).
995 * I expect that people doing the user space apps will feedback
996 * us on which value we need to put in each driver... */
997 struct iw_quality avg_qual; /* Quality of the link */
998
999 /* Rates */
1000 __u8 num_bitrates; /* Number of entries in the list */
1001 __s32 bitrate[IW_MAX_BITRATES]; /* list, in bps */
1002
1003 /* RTS threshold */
1004 __s32 min_rts; /* Minimal RTS threshold */
1005 __s32 max_rts; /* Maximal RTS threshold */
1006
1007 /* Frag threshold */
1008 __s32 min_frag; /* Minimal frag threshold */
1009 __s32 max_frag; /* Maximal frag threshold */
1010
1011 /* Power Management duration & timeout */
1012 __s32 min_pmp; /* Minimal PM period */
1013 __s32 max_pmp; /* Maximal PM period */
1014 __s32 min_pmt; /* Minimal PM timeout */
1015 __s32 max_pmt; /* Maximal PM timeout */
1016 __u16 pmp_flags; /* How to decode max/min PM period */
1017 __u16 pmt_flags; /* How to decode max/min PM timeout */
1018 __u16 pm_capa; /* What PM options are supported */
1019
1020 /* Encoder stuff */
1021 __u16 encoding_size[IW_MAX_ENCODING_SIZES]; /* Different token sizes */
1022 __u8 num_encoding_sizes; /* Number of entry in the list */
1023 __u8 max_encoding_tokens; /* Max number of tokens */
1024 /* For drivers that need a "login/passwd" form */
1025 __u8 encoding_login_index; /* token index for login token */
1026
1027 /* Transmit power */
1028 __u16 txpower_capa; /* What options are supported */
1029 __u8 num_txpower; /* Number of entries in the list */
1030 __s32 txpower[IW_MAX_TXPOWER]; /* list, in bps */
1031
1032 /* Wireless Extension version info */
1033 __u8 we_version_compiled; /* Must be WIRELESS_EXT */
1034 __u8 we_version_source; /* Last update of source */
1035
1036 /* Retry limits and lifetime */
1037 __u16 retry_capa; /* What retry options are supported */
1038 __u16 retry_flags; /* How to decode max/min retry limit */
1039 __u16 r_time_flags; /* How to decode max/min retry life */
1040 __s32 min_retry; /* Minimal number of retries */
1041 __s32 max_retry; /* Maximal number of retries */
1042 __s32 min_r_time; /* Minimal retry lifetime */
1043 __s32 max_r_time; /* Maximal retry lifetime */
1044
1045 /* Frequency */
1046 __u16 num_channels; /* Number of channels [0; num - 1] */
1047 __u8 num_frequency; /* Number of entry in the list */
1048 struct iw_freq freq[IW_MAX_FREQUENCIES]; /* list */
1049 /* Note : this frequency list doesn't need to fit channel numbers,
1050 * because each entry contain its channel index */
1051
1052 __u32 enc_capa; /* IW_ENC_CAPA_* bit field */
1053};
1054
1055/*
1056 * Private ioctl interface information
1057 */
1058
1059struct iw_priv_args {
1060 __u32 cmd; /* Number of the ioctl to issue */
1061 __u16 set_args; /* Type and number of args */
1062 __u16 get_args; /* Type and number of args */
1063 char name[IFNAMSIZ]; /* Name of the extension */
1064};
1065
1066/* ----------------------- WIRELESS EVENTS ----------------------- */
1067/*
1068 * Wireless events are carried through the rtnetlink socket to user
1069 * space. They are encapsulated in the IFLA_WIRELESS field of
1070 * a RTM_NEWLINK message.
1071 */
1072
1073/*
1074 * A Wireless Event. Contains basically the same data as the ioctl...
1075 */
1076struct iw_event {
1077 __u16 len; /* Real length of this stuff */
1078 __u16 cmd; /* Wireless IOCTL */
1079 union iwreq_data u; /* IOCTL fixed payload */
1080};
1081
1082/* Size of the Event prefix (including padding and alignement junk) */
1083#define IW_EV_LCP_LEN (sizeof(struct iw_event) - sizeof(union iwreq_data))
1084/* Size of the various events */
1085#define IW_EV_CHAR_LEN (IW_EV_LCP_LEN + IFNAMSIZ)
1086#define IW_EV_UINT_LEN (IW_EV_LCP_LEN + sizeof(__u32))
1087#define IW_EV_FREQ_LEN (IW_EV_LCP_LEN + sizeof(struct iw_freq))
1088#define IW_EV_PARAM_LEN (IW_EV_LCP_LEN + sizeof(struct iw_param))
1089#define IW_EV_ADDR_LEN (IW_EV_LCP_LEN + sizeof(struct sockaddr))
1090#define IW_EV_QUAL_LEN (IW_EV_LCP_LEN + sizeof(struct iw_quality))
1091
1092/* iw_point events are special. First, the payload (extra data) come at
1093 * the end of the event, so they are bigger than IW_EV_POINT_LEN. Second,
1094 * we omit the pointer, so start at an offset. */
1095#define IW_EV_POINT_OFF offsetof(struct iw_point, length)
1096#define IW_EV_POINT_LEN (IW_EV_LCP_LEN + sizeof(struct iw_point) - \
1097 IW_EV_POINT_OFF)
1098
1099
1100/* Size of the Event prefix when packed in stream */
1101#define IW_EV_LCP_PK_LEN (4)
1102/* Size of the various events when packed in stream */
1103#define IW_EV_CHAR_PK_LEN (IW_EV_LCP_PK_LEN + IFNAMSIZ)
1104#define IW_EV_UINT_PK_LEN (IW_EV_LCP_PK_LEN + sizeof(__u32))
1105#define IW_EV_FREQ_PK_LEN (IW_EV_LCP_PK_LEN + sizeof(struct iw_freq))
1106#define IW_EV_PARAM_PK_LEN (IW_EV_LCP_PK_LEN + sizeof(struct iw_param))
1107#define IW_EV_ADDR_PK_LEN (IW_EV_LCP_PK_LEN + sizeof(struct sockaddr))
1108#define IW_EV_QUAL_PK_LEN (IW_EV_LCP_PK_LEN + sizeof(struct iw_quality))
1109#define IW_EV_POINT_PK_LEN (IW_EV_LCP_PK_LEN + 4)
1110
1111#endif /* _LINUX_WIRELESS_H */
1112

source code of include/linux/wireless.h