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wireless: various definitions for mesh networking
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1/*
2 * This file define a set of standard wireless extensions
3 *
c2805fbb 4 * Version : 22 16.3.07
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5 *
6 * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com>
c2805fbb 7 * Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved.
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8 */
9
10#ifndef _LINUX_WIRELESS_H
11#define _LINUX_WIRELESS_H
12
13/************************** DOCUMENTATION **************************/
14/*
15 * Initial APIs (1996 -> onward) :
16 * -----------------------------
17 * Basically, the wireless extensions are for now a set of standard ioctl
18 * call + /proc/net/wireless
19 *
20 * The entry /proc/net/wireless give statistics and information on the
21 * driver.
22 * This is better than having each driver having its entry because
23 * its centralised and we may remove the driver module safely.
24 *
25 * Ioctl are used to configure the driver and issue commands. This is
26 * better than command line options of insmod because we may want to
27 * change dynamically (while the driver is running) some parameters.
28 *
29 * The ioctl mechanimsm are copied from standard devices ioctl.
30 * We have the list of command plus a structure descibing the
31 * data exchanged...
32 * Note that to add these ioctl, I was obliged to modify :
33 * # net/core/dev.c (two place + add include)
34 * # net/ipv4/af_inet.c (one place + add include)
35 *
36 * /proc/net/wireless is a copy of /proc/net/dev.
37 * We have a structure for data passed from the driver to /proc/net/wireless
38 * Too add this, I've modified :
39 * # net/core/dev.c (two other places)
40 * # include/linux/netdevice.h (one place)
41 * # include/linux/proc_fs.h (one place)
42 *
43 * New driver API (2002 -> onward) :
44 * -------------------------------
45 * This file is only concerned with the user space API and common definitions.
46 * The new driver API is defined and documented in :
47 * # include/net/iw_handler.h
48 *
49 * Note as well that /proc/net/wireless implementation has now moved in :
50 * # net/core/wireless.c
51 *
52 * Wireless Events (2002 -> onward) :
53 * --------------------------------
54 * Events are defined at the end of this file, and implemented in :
55 * # net/core/wireless.c
56 *
57 * Other comments :
58 * --------------
59 * Do not add here things that are redundant with other mechanisms
60 * (drivers init, ifconfig, /proc/net/dev, ...) and with are not
61 * wireless specific.
62 *
63 * These wireless extensions are not magic : each driver has to provide
64 * support for them...
65 *
66 * IMPORTANT NOTE : As everything in the kernel, this is very much a
67 * work in progress. Contact me if you have ideas of improvements...
68 */
69
70/***************************** INCLUDES *****************************/
71
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72/* This header is used in user-space, therefore need to be sanitised
73 * for that purpose. Those includes are usually not compatible with glibc.
74 * To know which includes to use in user-space, check iwlib.h. */
75#ifdef __KERNEL__
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76#include <linux/types.h> /* for "caddr_t" et al */
77#include <linux/socket.h> /* for "struct sockaddr" et al */
78#include <linux/if.h> /* for IFNAMSIZ and co... */
baef1865 79#endif /* __KERNEL__ */
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80
81/***************************** VERSION *****************************/
82/*
83 * This constant is used to know the availability of the wireless
84 * extensions and to know which version of wireless extensions it is
85 * (there is some stuff that will be added in the future...)
86 * I just plan to increment with each new version.
87 */
c2805fbb 88#define WIRELESS_EXT 22
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89
90/*
91 * Changes :
92 *
93 * V2 to V3
94 * --------
95 * Alan Cox start some incompatibles changes. I've integrated a bit more.
96 * - Encryption renamed to Encode to avoid US regulation problems
97 * - Frequency changed from float to struct to avoid problems on old 386
98 *
99 * V3 to V4
100 * --------
101 * - Add sensitivity
102 *
103 * V4 to V5
104 * --------
105 * - Missing encoding definitions in range
106 * - Access points stuff
107 *
108 * V5 to V6
109 * --------
110 * - 802.11 support (ESSID ioctls)
111 *
112 * V6 to V7
113 * --------
114 * - define IW_ESSID_MAX_SIZE and IW_MAX_AP
115 *
116 * V7 to V8
117 * --------
118 * - Changed my e-mail address
119 * - More 802.11 support (nickname, rate, rts, frag)
120 * - List index in frequencies
121 *
122 * V8 to V9
123 * --------
124 * - Support for 'mode of operation' (ad-hoc, managed...)
125 * - Support for unicast and multicast power saving
126 * - Change encoding to support larger tokens (>64 bits)
127 * - Updated iw_params (disable, flags) and use it for NWID
128 * - Extracted iw_point from iwreq for clarity
129 *
130 * V9 to V10
131 * ---------
132 * - Add PM capability to range structure
133 * - Add PM modifier : MAX/MIN/RELATIVE
134 * - Add encoding option : IW_ENCODE_NOKEY
135 * - Add TxPower ioctls (work like TxRate)
136 *
137 * V10 to V11
138 * ----------
139 * - Add WE version in range (help backward/forward compatibility)
140 * - Add retry ioctls (work like PM)
141 *
142 * V11 to V12
143 * ----------
144 * - Add SIOCSIWSTATS to get /proc/net/wireless programatically
145 * - Add DEV PRIVATE IOCTL to avoid collisions in SIOCDEVPRIVATE space
146 * - Add new statistics (frag, retry, beacon)
147 * - Add average quality (for user space calibration)
148 *
149 * V12 to V13
150 * ----------
151 * - Document creation of new driver API.
152 * - Extract union iwreq_data from struct iwreq (for new driver API).
153 * - Rename SIOCSIWNAME as SIOCSIWCOMMIT
154 *
155 * V13 to V14
156 * ----------
157 * - Wireless Events support : define struct iw_event
158 * - Define additional specific event numbers
159 * - Add "addr" and "param" fields in union iwreq_data
160 * - AP scanning stuff (SIOCSIWSCAN and friends)
161 *
162 * V14 to V15
163 * ----------
164 * - Add IW_PRIV_TYPE_ADDR for struct sockaddr private arg
165 * - Make struct iw_freq signed (both m & e), add explicit padding
166 * - Add IWEVCUSTOM for driver specific event/scanning token
167 * - Add IW_MAX_GET_SPY for driver returning a lot of addresses
168 * - Add IW_TXPOW_RANGE for range of Tx Powers
169 * - Add IWEVREGISTERED & IWEVEXPIRED events for Access Points
170 * - Add IW_MODE_MONITOR for passive monitor
171 *
172 * V15 to V16
173 * ----------
174 * - Increase the number of bitrates in iw_range to 32 (for 802.11g)
175 * - Increase the number of frequencies in iw_range to 32 (for 802.11b+a)
176 * - Reshuffle struct iw_range for increases, add filler
177 * - Increase IW_MAX_AP to 64 for driver returning a lot of addresses
178 * - Remove IW_MAX_GET_SPY because conflict with enhanced spy support
179 * - Add SIOCSIWTHRSPY/SIOCGIWTHRSPY and "struct iw_thrspy"
180 * - Add IW_ENCODE_TEMP and iw_range->encoding_login_index
181 *
182 * V16 to V17
183 * ----------
184 * - Add flags to frequency -> auto/fixed
185 * - Document (struct iw_quality *)->updated, add new flags (INVALID)
186 * - Wireless Event capability in struct iw_range
187 * - Add support for relative TxPower (yick !)
fff9cfd9 188 *
85d32e7b 189 * V17 to V18 (From Jouni Malinen <j@w1.fi>)
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190 * ----------
191 * - Add support for WPA/WPA2
192 * - Add extended encoding configuration (SIOCSIWENCODEEXT and
193 * SIOCGIWENCODEEXT)
194 * - Add SIOCSIWGENIE/SIOCGIWGENIE
195 * - Add SIOCSIWMLME
196 * - Add SIOCSIWPMKSA
197 * - Add struct iw_range bit field for supported encoding capabilities
198 * - Add optional scan request parameters for SIOCSIWSCAN
199 * - Add SIOCSIWAUTH/SIOCGIWAUTH for setting authentication and WPA
200 * related parameters (extensible up to 4096 parameter values)
201 * - Add wireless events: IWEVGENIE, IWEVMICHAELMICFAILURE,
202 * IWEVASSOCREQIE, IWEVASSOCRESPIE, IWEVPMKIDCAND
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203 *
204 * V18 to V19
205 * ----------
206 * - Remove (struct iw_point *)->pointer from events and streams
207 * - Remove header includes to help user space
208 * - Increase IW_ENCODING_TOKEN_MAX from 32 to 64
209 * - Add IW_QUAL_ALL_UPDATED and IW_QUAL_ALL_INVALID macros
210 * - Add explicit flag to tell stats are in dBm : IW_QUAL_DBM
211 * - Add IW_IOCTL_IDX() and IW_EVENT_IDX() macros
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212 *
213 * V19 to V20
214 * ----------
215 * - RtNetlink requests support (SET/GET)
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216 *
217 * V20 to V21
218 * ----------
219 * - Remove (struct net_device *)->get_wireless_stats()
220 * - Change length in ESSID and NICK to strlen() instead of strlen()+1
221 * - Add IW_RETRY_SHORT/IW_RETRY_LONG retry modifiers
222 * - Power/Retry relative values no longer * 100000
223 * - Add explicit flag to tell stats are in 802.11k RCPI : IW_QUAL_RCPI
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224 *
225 * V21 to V22
226 * ----------
227 * - Prevent leaking of kernel space in stream on 64 bits.
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228 */
229
230/**************************** CONSTANTS ****************************/
231
232/* -------------------------- IOCTL LIST -------------------------- */
233
234/* Wireless Identification */
235#define SIOCSIWCOMMIT 0x8B00 /* Commit pending changes to driver */
236#define SIOCGIWNAME 0x8B01 /* get name == wireless protocol */
237/* SIOCGIWNAME is used to verify the presence of Wireless Extensions.
238 * Common values : "IEEE 802.11-DS", "IEEE 802.11-FH", "IEEE 802.11b"...
239 * Don't put the name of your driver there, it's useless. */
240
241/* Basic operations */
242#define SIOCSIWNWID 0x8B02 /* set network id (pre-802.11) */
243#define SIOCGIWNWID 0x8B03 /* get network id (the cell) */
244#define SIOCSIWFREQ 0x8B04 /* set channel/frequency (Hz) */
245#define SIOCGIWFREQ 0x8B05 /* get channel/frequency (Hz) */
246#define SIOCSIWMODE 0x8B06 /* set operation mode */
247#define SIOCGIWMODE 0x8B07 /* get operation mode */
248#define SIOCSIWSENS 0x8B08 /* set sensitivity (dBm) */
249#define SIOCGIWSENS 0x8B09 /* get sensitivity (dBm) */
250
251/* Informative stuff */
252#define SIOCSIWRANGE 0x8B0A /* Unused */
253#define SIOCGIWRANGE 0x8B0B /* Get range of parameters */
254#define SIOCSIWPRIV 0x8B0C /* Unused */
255#define SIOCGIWPRIV 0x8B0D /* get private ioctl interface info */
256#define SIOCSIWSTATS 0x8B0E /* Unused */
257#define SIOCGIWSTATS 0x8B0F /* Get /proc/net/wireless stats */
258/* SIOCGIWSTATS is strictly used between user space and the kernel, and
259 * is never passed to the driver (i.e. the driver will never see it). */
260
261/* Spy support (statistics per MAC address - used for Mobile IP support) */
262#define SIOCSIWSPY 0x8B10 /* set spy addresses */
263#define SIOCGIWSPY 0x8B11 /* get spy info (quality of link) */
264#define SIOCSIWTHRSPY 0x8B12 /* set spy threshold (spy event) */
265#define SIOCGIWTHRSPY 0x8B13 /* get spy threshold */
266
267/* Access Point manipulation */
268#define SIOCSIWAP 0x8B14 /* set access point MAC addresses */
269#define SIOCGIWAP 0x8B15 /* get access point MAC addresses */
270#define SIOCGIWAPLIST 0x8B17 /* Deprecated in favor of scanning */
271#define SIOCSIWSCAN 0x8B18 /* trigger scanning (list cells) */
272#define SIOCGIWSCAN 0x8B19 /* get scanning results */
273
274/* 802.11 specific support */
275#define SIOCSIWESSID 0x8B1A /* set ESSID (network name) */
276#define SIOCGIWESSID 0x8B1B /* get ESSID */
277#define SIOCSIWNICKN 0x8B1C /* set node name/nickname */
278#define SIOCGIWNICKN 0x8B1D /* get node name/nickname */
279/* As the ESSID and NICKN are strings up to 32 bytes long, it doesn't fit
280 * within the 'iwreq' structure, so we need to use the 'data' member to
281 * point to a string in user space, like it is done for RANGE... */
282
283/* Other parameters useful in 802.11 and some other devices */
284#define SIOCSIWRATE 0x8B20 /* set default bit rate (bps) */
285#define SIOCGIWRATE 0x8B21 /* get default bit rate (bps) */
286#define SIOCSIWRTS 0x8B22 /* set RTS/CTS threshold (bytes) */
287#define SIOCGIWRTS 0x8B23 /* get RTS/CTS threshold (bytes) */
288#define SIOCSIWFRAG 0x8B24 /* set fragmentation thr (bytes) */
289#define SIOCGIWFRAG 0x8B25 /* get fragmentation thr (bytes) */
290#define SIOCSIWTXPOW 0x8B26 /* set transmit power (dBm) */
291#define SIOCGIWTXPOW 0x8B27 /* get transmit power (dBm) */
292#define SIOCSIWRETRY 0x8B28 /* set retry limits and lifetime */
293#define SIOCGIWRETRY 0x8B29 /* get retry limits and lifetime */
294
295/* Encoding stuff (scrambling, hardware security, WEP...) */
296#define SIOCSIWENCODE 0x8B2A /* set encoding token & mode */
297#define SIOCGIWENCODE 0x8B2B /* get encoding token & mode */
298/* Power saving stuff (power management, unicast and multicast) */
299#define SIOCSIWPOWER 0x8B2C /* set Power Management settings */
300#define SIOCGIWPOWER 0x8B2D /* get Power Management settings */
301
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302/* WPA : Generic IEEE 802.11 informatiom element (e.g., for WPA/RSN/WMM).
303 * This ioctl uses struct iw_point and data buffer that includes IE id and len
304 * fields. More than one IE may be included in the request. Setting the generic
305 * IE to empty buffer (len=0) removes the generic IE from the driver. Drivers
306 * are allowed to generate their own WPA/RSN IEs, but in these cases, drivers
307 * are required to report the used IE as a wireless event, e.g., when
308 * associating with an AP. */
309#define SIOCSIWGENIE 0x8B30 /* set generic IE */
310#define SIOCGIWGENIE 0x8B31 /* get generic IE */
311
312/* WPA : IEEE 802.11 MLME requests */
313#define SIOCSIWMLME 0x8B16 /* request MLME operation; uses
314 * struct iw_mlme */
315/* WPA : Authentication mode parameters */
316#define SIOCSIWAUTH 0x8B32 /* set authentication mode params */
317#define SIOCGIWAUTH 0x8B33 /* get authentication mode params */
318
319/* WPA : Extended version of encoding configuration */
320#define SIOCSIWENCODEEXT 0x8B34 /* set encoding token & mode */
321#define SIOCGIWENCODEEXT 0x8B35 /* get encoding token & mode */
322
323/* WPA2 : PMKSA cache management */
324#define SIOCSIWPMKSA 0x8B36 /* PMKSA cache operation */
325
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326/* -------------------- DEV PRIVATE IOCTL LIST -------------------- */
327
328/* These 32 ioctl are wireless device private, for 16 commands.
329 * Each driver is free to use them for whatever purpose it chooses,
330 * however the driver *must* export the description of those ioctls
331 * with SIOCGIWPRIV and *must* use arguments as defined below.
332 * If you don't follow those rules, DaveM is going to hate you (reason :
333 * it make mixed 32/64bit operation impossible).
334 */
335#define SIOCIWFIRSTPRIV 0x8BE0
336#define SIOCIWLASTPRIV 0x8BFF
337/* Previously, we were using SIOCDEVPRIVATE, but we now have our
338 * separate range because of collisions with other tools such as
339 * 'mii-tool'.
340 * We now have 32 commands, so a bit more space ;-).
beddef27 341 * Also, all 'even' commands are only usable by root and don't return the
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342 * content of ifr/iwr to user (but you are not obliged to use the set/get
343 * convention, just use every other two command). More details in iwpriv.c.
344 * And I repeat : you are not forced to use them with iwpriv, but you
345 * must be compliant with it.
346 */
347
348/* ------------------------- IOCTL STUFF ------------------------- */
349
350/* The first and the last (range) */
351#define SIOCIWFIRST 0x8B00
352#define SIOCIWLAST SIOCIWLASTPRIV /* 0x8BFF */
6582c164 353#define IW_IOCTL_IDX(cmd) ((cmd) - SIOCIWFIRST)
1da177e4 354
beddef27 355/* Odd : get (world access), even : set (root access) */
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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) */
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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) */
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396
397#define IWEVFIRST 0x8C00
6582c164 398#define IW_EVENT_IDX(cmd) ((cmd) - IWEVFIRST)
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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
459/* Statistics flags (bitmask in updated) */
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460#define IW_QUAL_QUAL_UPDATED 0x01 /* Value was updated since last read */
461#define IW_QUAL_LEVEL_UPDATED 0x02
462#define IW_QUAL_NOISE_UPDATED 0x04
463#define IW_QUAL_ALL_UPDATED 0x07
464#define IW_QUAL_DBM 0x08 /* Level + Noise are dBm */
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465#define IW_QUAL_QUAL_INVALID 0x10 /* Driver doesn't provide value */
466#define IW_QUAL_LEVEL_INVALID 0x20
467#define IW_QUAL_NOISE_INVALID 0x40
baef1865 468#define IW_QUAL_RCPI 0x80 /* Level + Noise are 802.11k RCPI */
6582c164 469#define IW_QUAL_ALL_INVALID 0x70
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470
471/* Frequency flags */
472#define IW_FREQ_AUTO 0x00 /* Let the driver decides */
473#define IW_FREQ_FIXED 0x01 /* Force a specific value */
474
475/* Maximum number of size of encoding token available
476 * they are listed in the range structure */
477#define IW_MAX_ENCODING_SIZES 8
478
479/* Maximum size of the encoding token in bytes */
6582c164 480#define IW_ENCODING_TOKEN_MAX 64 /* 512 bits (for now) */
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481
482/* Flags for encoding (along with the token) */
483#define IW_ENCODE_INDEX 0x00FF /* Token index (if needed) */
484#define IW_ENCODE_FLAGS 0xFF00 /* Flags defined below */
485#define IW_ENCODE_MODE 0xF000 /* Modes defined below */
486#define IW_ENCODE_DISABLED 0x8000 /* Encoding disabled */
487#define IW_ENCODE_ENABLED 0x0000 /* Encoding enabled */
488#define IW_ENCODE_RESTRICTED 0x4000 /* Refuse non-encoded packets */
489#define IW_ENCODE_OPEN 0x2000 /* Accept non-encoded packets */
490#define IW_ENCODE_NOKEY 0x0800 /* Key is write only, so not present */
491#define IW_ENCODE_TEMP 0x0400 /* Temporary key */
492
493/* Power management flags available (along with the value, if any) */
494#define IW_POWER_ON 0x0000 /* No details... */
495#define IW_POWER_TYPE 0xF000 /* Type of parameter */
496#define IW_POWER_PERIOD 0x1000 /* Value is a period/duration of */
497#define IW_POWER_TIMEOUT 0x2000 /* Value is a timeout (to go asleep) */
498#define IW_POWER_MODE 0x0F00 /* Power Management mode */
499#define IW_POWER_UNICAST_R 0x0100 /* Receive only unicast messages */
500#define IW_POWER_MULTICAST_R 0x0200 /* Receive only multicast messages */
501#define IW_POWER_ALL_R 0x0300 /* Receive all messages though PM */
502#define IW_POWER_FORCE_S 0x0400 /* Force PM procedure for sending unicast */
503#define IW_POWER_REPEATER 0x0800 /* Repeat broadcast messages in PM period */
504#define IW_POWER_MODIFIER 0x000F /* Modify a parameter */
505#define IW_POWER_MIN 0x0001 /* Value is a minimum */
506#define IW_POWER_MAX 0x0002 /* Value is a maximum */
507#define IW_POWER_RELATIVE 0x0004 /* Value is not in seconds/ms/us */
508
509/* Transmit Power flags available */
510#define IW_TXPOW_TYPE 0x00FF /* Type of value */
511#define IW_TXPOW_DBM 0x0000 /* Value is in dBm */
512#define IW_TXPOW_MWATT 0x0001 /* Value is in mW */
513#define IW_TXPOW_RELATIVE 0x0002 /* Value is in arbitrary units */
514#define IW_TXPOW_RANGE 0x1000 /* Range of value between min/max */
515
516/* Retry limits and lifetime flags available */
517#define IW_RETRY_ON 0x0000 /* No details... */
518#define IW_RETRY_TYPE 0xF000 /* Type of parameter */
519#define IW_RETRY_LIMIT 0x1000 /* Maximum number of retries*/
520#define IW_RETRY_LIFETIME 0x2000 /* Maximum duration of retries in us */
baef1865 521#define IW_RETRY_MODIFIER 0x00FF /* Modify a parameter */
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LT
522#define IW_RETRY_MIN 0x0001 /* Value is a minimum */
523#define IW_RETRY_MAX 0x0002 /* Value is a maximum */
524#define IW_RETRY_RELATIVE 0x0004 /* Value is not in seconds/ms/us */
baef1865
JL
525#define IW_RETRY_SHORT 0x0010 /* Value is for short packets */
526#define IW_RETRY_LONG 0x0020 /* Value is for long packets */
1da177e4
LT
527
528/* Scanning request flags */
529#define IW_SCAN_DEFAULT 0x0000 /* Default scan of the driver */
530#define IW_SCAN_ALL_ESSID 0x0001 /* Scan all ESSIDs */
531#define IW_SCAN_THIS_ESSID 0x0002 /* Scan only this ESSID */
532#define IW_SCAN_ALL_FREQ 0x0004 /* Scan all Frequencies */
533#define IW_SCAN_THIS_FREQ 0x0008 /* Scan only this Frequency */
534#define IW_SCAN_ALL_MODE 0x0010 /* Scan all Modes */
535#define IW_SCAN_THIS_MODE 0x0020 /* Scan only this Mode */
536#define IW_SCAN_ALL_RATE 0x0040 /* Scan all Bit-Rates */
537#define IW_SCAN_THIS_RATE 0x0080 /* Scan only this Bit-Rate */
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JT
538/* struct iw_scan_req scan_type */
539#define IW_SCAN_TYPE_ACTIVE 0
540#define IW_SCAN_TYPE_PASSIVE 1
1da177e4
LT
541/* Maximum size of returned data */
542#define IW_SCAN_MAX_DATA 4096 /* In bytes */
543
374fdfbc
DW
544/* Scan capability flags - in (struct iw_range *)->scan_capa */
545#define IW_SCAN_CAPA_NONE 0x00
546#define IW_SCAN_CAPA_ESSID 0x01
547#define IW_SCAN_CAPA_BSSID 0x02
548#define IW_SCAN_CAPA_CHANNEL 0x04
549#define IW_SCAN_CAPA_MODE 0x08
550#define IW_SCAN_CAPA_RATE 0x10
551#define IW_SCAN_CAPA_TYPE 0x20
552#define IW_SCAN_CAPA_TIME 0x40
553
1da177e4
LT
554/* Max number of char in custom event - use multiple of them if needed */
555#define IW_CUSTOM_MAX 256 /* In bytes */
556
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JT
557/* Generic information element */
558#define IW_GENERIC_IE_MAX 1024
559
560/* MLME requests (SIOCSIWMLME / struct iw_mlme) */
561#define IW_MLME_DEAUTH 0
562#define IW_MLME_DISASSOC 1
fe75f747
CL
563#define IW_MLME_AUTH 2
564#define IW_MLME_ASSOC 3
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JT
565
566/* SIOCSIWAUTH/SIOCGIWAUTH struct iw_param flags */
567#define IW_AUTH_INDEX 0x0FFF
568#define IW_AUTH_FLAGS 0xF000
569/* SIOCSIWAUTH/SIOCGIWAUTH parameters (0 .. 4095)
570 * (IW_AUTH_INDEX mask in struct iw_param flags; this is the index of the
571 * parameter that is being set/get to; value will be read/written to
572 * struct iw_param value field) */
573#define IW_AUTH_WPA_VERSION 0
574#define IW_AUTH_CIPHER_PAIRWISE 1
575#define IW_AUTH_CIPHER_GROUP 2
576#define IW_AUTH_KEY_MGMT 3
577#define IW_AUTH_TKIP_COUNTERMEASURES 4
578#define IW_AUTH_DROP_UNENCRYPTED 5
579#define IW_AUTH_80211_AUTH_ALG 6
580#define IW_AUTH_WPA_ENABLED 7
581#define IW_AUTH_RX_UNENCRYPTED_EAPOL 8
582#define IW_AUTH_ROAMING_CONTROL 9
583#define IW_AUTH_PRIVACY_INVOKED 10
584
585/* IW_AUTH_WPA_VERSION values (bit field) */
586#define IW_AUTH_WPA_VERSION_DISABLED 0x00000001
587#define IW_AUTH_WPA_VERSION_WPA 0x00000002
588#define IW_AUTH_WPA_VERSION_WPA2 0x00000004
589
590/* IW_AUTH_PAIRWISE_CIPHER and IW_AUTH_GROUP_CIPHER values (bit field) */
591#define IW_AUTH_CIPHER_NONE 0x00000001
592#define IW_AUTH_CIPHER_WEP40 0x00000002
593#define IW_AUTH_CIPHER_TKIP 0x00000004
594#define IW_AUTH_CIPHER_CCMP 0x00000008
595#define IW_AUTH_CIPHER_WEP104 0x00000010
596
597/* IW_AUTH_KEY_MGMT values (bit field) */
598#define IW_AUTH_KEY_MGMT_802_1X 1
599#define IW_AUTH_KEY_MGMT_PSK 2
600
601/* IW_AUTH_80211_AUTH_ALG values (bit field) */
602#define IW_AUTH_ALG_OPEN_SYSTEM 0x00000001
603#define IW_AUTH_ALG_SHARED_KEY 0x00000002
604#define IW_AUTH_ALG_LEAP 0x00000004
605
606/* IW_AUTH_ROAMING_CONTROL values */
607#define IW_AUTH_ROAMING_ENABLE 0 /* driver/firmware based roaming */
608#define IW_AUTH_ROAMING_DISABLE 1 /* user space program used for roaming
609 * control */
610
611/* SIOCSIWENCODEEXT definitions */
612#define IW_ENCODE_SEQ_MAX_SIZE 8
613/* struct iw_encode_ext ->alg */
614#define IW_ENCODE_ALG_NONE 0
615#define IW_ENCODE_ALG_WEP 1
616#define IW_ENCODE_ALG_TKIP 2
617#define IW_ENCODE_ALG_CCMP 3
618/* struct iw_encode_ext ->ext_flags */
619#define IW_ENCODE_EXT_TX_SEQ_VALID 0x00000001
620#define IW_ENCODE_EXT_RX_SEQ_VALID 0x00000002
621#define IW_ENCODE_EXT_GROUP_KEY 0x00000004
622#define IW_ENCODE_EXT_SET_TX_KEY 0x00000008
623
624/* IWEVMICHAELMICFAILURE : struct iw_michaelmicfailure ->flags */
625#define IW_MICFAILURE_KEY_ID 0x00000003 /* Key ID 0..3 */
626#define IW_MICFAILURE_GROUP 0x00000004
627#define IW_MICFAILURE_PAIRWISE 0x00000008
628#define IW_MICFAILURE_STAKEY 0x00000010
629#define IW_MICFAILURE_COUNT 0x00000060 /* 1 or 2 (0 = count not supported)
630 */
631
632/* Bit field values for enc_capa in struct iw_range */
633#define IW_ENC_CAPA_WPA 0x00000001
634#define IW_ENC_CAPA_WPA2 0x00000002
635#define IW_ENC_CAPA_CIPHER_TKIP 0x00000004
636#define IW_ENC_CAPA_CIPHER_CCMP 0x00000008
637
1da177e4
LT
638/* Event capability macros - in (struct iw_range *)->event_capa
639 * Because we have more than 32 possible events, we use an array of
640 * 32 bit bitmasks. Note : 32 bits = 0x20 = 2^5. */
641#define IW_EVENT_CAPA_BASE(cmd) ((cmd >= SIOCIWFIRSTPRIV) ? \
642 (cmd - SIOCIWFIRSTPRIV + 0x60) : \
643 (cmd - SIOCSIWCOMMIT))
644#define IW_EVENT_CAPA_INDEX(cmd) (IW_EVENT_CAPA_BASE(cmd) >> 5)
645#define IW_EVENT_CAPA_MASK(cmd) (1 << (IW_EVENT_CAPA_BASE(cmd) & 0x1F))
646/* Event capability constants - event autogenerated by the kernel
647 * This list is valid for most 802.11 devices, customise as needed... */
648#define IW_EVENT_CAPA_K_0 (IW_EVENT_CAPA_MASK(0x8B04) | \
649 IW_EVENT_CAPA_MASK(0x8B06) | \
650 IW_EVENT_CAPA_MASK(0x8B1A))
651#define IW_EVENT_CAPA_K_1 (IW_EVENT_CAPA_MASK(0x8B2A))
652/* "Easy" macro to set events in iw_range (less efficient) */
653#define IW_EVENT_CAPA_SET(event_capa, cmd) (event_capa[IW_EVENT_CAPA_INDEX(cmd)] |= IW_EVENT_CAPA_MASK(cmd))
654#define IW_EVENT_CAPA_SET_KERNEL(event_capa) {event_capa[0] |= IW_EVENT_CAPA_K_0; event_capa[1] |= IW_EVENT_CAPA_K_1; }
655
656
657/****************************** TYPES ******************************/
658
659/* --------------------------- SUBTYPES --------------------------- */
660/*
661 * Generic format for most parameters that fit in an int
662 */
663struct iw_param
664{
665 __s32 value; /* The value of the parameter itself */
666 __u8 fixed; /* Hardware should not use auto select */
667 __u8 disabled; /* Disable the feature */
668 __u16 flags; /* Various specifc flags (if any) */
669};
670
671/*
672 * For all data larger than 16 octets, we need to use a
673 * pointer to memory allocated in user space.
674 */
675struct iw_point
676{
677 void __user *pointer; /* Pointer to the data (in user space) */
678 __u16 length; /* number of fields or size in bytes */
679 __u16 flags; /* Optional params */
680};
681
682/*
683 * A frequency
684 * For numbers lower than 10^9, we encode the number in 'm' and
685 * set 'e' to 0
686 * For number greater than 10^9, we divide it by the lowest power
687 * of 10 to get 'm' lower than 10^9, with 'm'= f / (10^'e')...
688 * The power of 10 is in 'e', the result of the division is in 'm'.
689 */
690struct iw_freq
691{
692 __s32 m; /* Mantissa */
693 __s16 e; /* Exponent */
694 __u8 i; /* List index (when in range struct) */
695 __u8 flags; /* Flags (fixed/auto) */
696};
697
698/*
699 * Quality of the link
700 */
701struct iw_quality
702{
703 __u8 qual; /* link quality (%retries, SNR,
704 %missed beacons or better...) */
705 __u8 level; /* signal level (dBm) */
706 __u8 noise; /* noise level (dBm) */
707 __u8 updated; /* Flags to know if updated */
708};
709
710/*
711 * Packet discarded in the wireless adapter due to
712 * "wireless" specific problems...
713 * Note : the list of counter and statistics in net_device_stats
714 * is already pretty exhaustive, and you should use that first.
715 * This is only additional stats...
716 */
717struct iw_discarded
718{
719 __u32 nwid; /* Rx : Wrong nwid/essid */
720 __u32 code; /* Rx : Unable to code/decode (WEP) */
721 __u32 fragment; /* Rx : Can't perform MAC reassembly */
722 __u32 retries; /* Tx : Max MAC retries num reached */
723 __u32 misc; /* Others cases */
724};
725
726/*
727 * Packet/Time period missed in the wireless adapter due to
728 * "wireless" specific problems...
729 */
730struct iw_missed
731{
732 __u32 beacon; /* Missed beacons/superframe */
733};
734
735/*
736 * Quality range (for spy threshold)
737 */
738struct iw_thrspy
739{
740 struct sockaddr addr; /* Source address (hw/mac) */
741 struct iw_quality qual; /* Quality of the link */
742 struct iw_quality low; /* Low threshold */
743 struct iw_quality high; /* High threshold */
744};
745
fff9cfd9
JT
746/*
747 * Optional data for scan request
748 *
749 * Note: these optional parameters are controlling parameters for the
750 * scanning behavior, these do not apply to getting scan results
751 * (SIOCGIWSCAN). Drivers are expected to keep a local BSS table and
752 * provide a merged results with all BSSes even if the previous scan
753 * request limited scanning to a subset, e.g., by specifying an SSID.
754 * Especially, scan results are required to include an entry for the
755 * current BSS if the driver is in Managed mode and associated with an AP.
756 */
757struct iw_scan_req
758{
759 __u8 scan_type; /* IW_SCAN_TYPE_{ACTIVE,PASSIVE} */
760 __u8 essid_len;
761 __u8 num_channels; /* num entries in channel_list;
762 * 0 = scan all allowed channels */
763 __u8 flags; /* reserved as padding; use zero, this may
764 * be used in the future for adding flags
765 * to request different scan behavior */
766 struct sockaddr bssid; /* ff:ff:ff:ff:ff:ff for broadcast BSSID or
767 * individual address of a specific BSS */
768
769 /*
770 * Use this ESSID if IW_SCAN_THIS_ESSID flag is used instead of using
771 * the current ESSID. This allows scan requests for specific ESSID
772 * without having to change the current ESSID and potentially breaking
773 * the current association.
774 */
775 __u8 essid[IW_ESSID_MAX_SIZE];
776
777 /*
778 * Optional parameters for changing the default scanning behavior.
779 * These are based on the MLME-SCAN.request from IEEE Std 802.11.
780 * TU is 1.024 ms. If these are set to 0, driver is expected to use
781 * reasonable default values. min_channel_time defines the time that
782 * will be used to wait for the first reply on each channel. If no
783 * replies are received, next channel will be scanned after this. If
784 * replies are received, total time waited on the channel is defined by
785 * max_channel_time.
786 */
787 __u32 min_channel_time; /* in TU */
788 __u32 max_channel_time; /* in TU */
789
790 struct iw_freq channel_list[IW_MAX_FREQUENCIES];
791};
792
793/* ------------------------- WPA SUPPORT ------------------------- */
794
795/*
796 * Extended data structure for get/set encoding (this is used with
797 * SIOCSIWENCODEEXT/SIOCGIWENCODEEXT. struct iw_point and IW_ENCODE_*
798 * flags are used in the same way as with SIOCSIWENCODE/SIOCGIWENCODE and
799 * only the data contents changes (key data -> this structure, including
800 * key data).
801 *
802 * If the new key is the first group key, it will be set as the default
803 * TX key. Otherwise, default TX key index is only changed if
804 * IW_ENCODE_EXT_SET_TX_KEY flag is set.
805 *
806 * Key will be changed with SIOCSIWENCODEEXT in all cases except for
807 * special "change TX key index" operation which is indicated by setting
808 * key_len = 0 and ext_flags |= IW_ENCODE_EXT_SET_TX_KEY.
809 *
810 * tx_seq/rx_seq are only used when respective
811 * IW_ENCODE_EXT_{TX,RX}_SEQ_VALID flag is set in ext_flags. Normal
812 * TKIP/CCMP operation is to set RX seq with SIOCSIWENCODEEXT and start
813 * TX seq from zero whenever key is changed. SIOCGIWENCODEEXT is normally
814 * used only by an Authenticator (AP or an IBSS station) to get the
815 * current TX sequence number. Using TX_SEQ_VALID for SIOCSIWENCODEEXT and
816 * RX_SEQ_VALID for SIOCGIWENCODEEXT are optional, but can be useful for
817 * debugging/testing.
818 */
819struct iw_encode_ext
820{
821 __u32 ext_flags; /* IW_ENCODE_EXT_* */
822 __u8 tx_seq[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */
823 __u8 rx_seq[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */
824 struct sockaddr addr; /* ff:ff:ff:ff:ff:ff for broadcast/multicast
825 * (group) keys or unicast address for
826 * individual keys */
827 __u16 alg; /* IW_ENCODE_ALG_* */
828 __u16 key_len;
829 __u8 key[0];
830};
831
832/* SIOCSIWMLME data */
833struct iw_mlme
834{
835 __u16 cmd; /* IW_MLME_* */
836 __u16 reason_code;
837 struct sockaddr addr;
838};
839
840/* SIOCSIWPMKSA data */
841#define IW_PMKSA_ADD 1
842#define IW_PMKSA_REMOVE 2
843#define IW_PMKSA_FLUSH 3
844
845#define IW_PMKID_LEN 16
846
847struct iw_pmksa
848{
849 __u32 cmd; /* IW_PMKSA_* */
850 struct sockaddr bssid;
851 __u8 pmkid[IW_PMKID_LEN];
852};
853
854/* IWEVMICHAELMICFAILURE data */
855struct iw_michaelmicfailure
856{
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{
866 __u32 flags; /* IW_PMKID_CAND_* */
867 __u32 index; /* the smaller the index, the higher the
868 * priority */
869 struct sockaddr bssid;
870};
871
1da177e4
LT
872/* ------------------------ WIRELESS STATS ------------------------ */
873/*
874 * Wireless statistics (used for /proc/net/wireless)
875 */
876struct iw_statistics
877{
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{
900 /* Config - generic */
901 char name[IFNAMSIZ];
902 /* Name : used to verify the presence of wireless extensions.
903 * Name of the protocol/provider... */
904
905 struct iw_point essid; /* Extended network name */
906 struct iw_param nwid; /* network id (or domain - the cell) */
907 struct iw_freq freq; /* frequency or channel :
908 * 0-1000 = channel
909 * > 1000 = frequency in Hz */
910
911 struct iw_param sens; /* signal level threshold */
912 struct iw_param bitrate; /* default bit rate */
913 struct iw_param txpower; /* default transmit power */
914 struct iw_param rts; /* RTS threshold threshold */
915 struct iw_param frag; /* Fragmentation threshold */
916 __u32 mode; /* Operation mode */
917 struct iw_param retry; /* Retry limits & lifetime */
918
919 struct iw_point encoding; /* Encoding stuff : tokens */
920 struct iw_param power; /* PM duration/timeout */
921 struct iw_quality qual; /* Quality part of statistics */
922
923 struct sockaddr ap_addr; /* Access point address */
924 struct sockaddr addr; /* Destination address (hw/mac) */
925
926 struct iw_param param; /* Other small parameters */
927 struct iw_point data; /* Other large parameters */
928};
929
930/*
931 * The structure to exchange data for ioctl.
932 * This structure is the same as 'struct ifreq', but (re)defined for
933 * convenience...
934 * Do I need to remind you about structure size (32 octets) ?
935 */
936struct iwreq
937{
938 union
939 {
940 char ifrn_name[IFNAMSIZ]; /* if name, e.g. "eth0" */
941 } ifr_ifrn;
942
943 /* Data part (defined just above) */
944 union iwreq_data u;
945};
946
947/* -------------------------- IOCTL DATA -------------------------- */
948/*
949 * For those ioctl which want to exchange mode data that what could
950 * fit in the above structure...
951 */
952
953/*
954 * Range of parameters
955 */
956
957struct iw_range
958{
959 /* Informative stuff (to choose between different interface) */
960 __u32 throughput; /* To give an idea... */
961 /* In theory this value should be the maximum benchmarked
962 * TCP/IP throughput, because with most of these devices the
963 * bit rate is meaningless (overhead an co) to estimate how
964 * fast the connection will go and pick the fastest one.
965 * I suggest people to play with Netperf or any benchmark...
966 */
967
968 /* NWID (or domain id) */
969 __u32 min_nwid; /* Minimal NWID we are able to set */
970 __u32 max_nwid; /* Maximal NWID we are able to set */
971
972 /* Old Frequency (backward compat - moved lower ) */
973 __u16 old_num_channels;
974 __u8 old_num_frequency;
975
374fdfbc
DW
976 /* Scan capabilities */
977 __u8 scan_capa; /* IW_SCAN_CAPA_* bit field */
978
1da177e4
LT
979 /* Wireless event capability bitmasks */
980 __u32 event_capa[6];
981
982 /* signal level threshold range */
983 __s32 sensitivity;
984
985 /* Quality of link & SNR stuff */
986 /* Quality range (link, level, noise)
987 * If the quality is absolute, it will be in the range [0 ; max_qual],
988 * if the quality is dBm, it will be in the range [max_qual ; 0].
989 * Don't forget that we use 8 bit arithmetics... */
990 struct iw_quality max_qual; /* Quality of the link */
991 /* This should contain the average/typical values of the quality
992 * indicator. This should be the threshold between a "good" and
993 * a "bad" link (example : monitor going from green to orange).
994 * Currently, user space apps like quality monitors don't have any
995 * way to calibrate the measurement. With this, they can split
996 * the range between 0 and max_qual in different quality level
997 * (using a geometric subdivision centered on the average).
998 * I expect that people doing the user space apps will feedback
999 * us on which value we need to put in each driver... */
1000 struct iw_quality avg_qual; /* Quality of the link */
1001
1002 /* Rates */
1003 __u8 num_bitrates; /* Number of entries in the list */
1004 __s32 bitrate[IW_MAX_BITRATES]; /* list, in bps */
1005
1006 /* RTS threshold */
1007 __s32 min_rts; /* Minimal RTS threshold */
1008 __s32 max_rts; /* Maximal RTS threshold */
1009
1010 /* Frag threshold */
1011 __s32 min_frag; /* Minimal frag threshold */
1012 __s32 max_frag; /* Maximal frag threshold */
1013
1014 /* Power Management duration & timeout */
1015 __s32 min_pmp; /* Minimal PM period */
1016 __s32 max_pmp; /* Maximal PM period */
1017 __s32 min_pmt; /* Minimal PM timeout */
1018 __s32 max_pmt; /* Maximal PM timeout */
1019 __u16 pmp_flags; /* How to decode max/min PM period */
1020 __u16 pmt_flags; /* How to decode max/min PM timeout */
1021 __u16 pm_capa; /* What PM options are supported */
1022
1023 /* Encoder stuff */
1024 __u16 encoding_size[IW_MAX_ENCODING_SIZES]; /* Different token sizes */
1025 __u8 num_encoding_sizes; /* Number of entry in the list */
1026 __u8 max_encoding_tokens; /* Max number of tokens */
1027 /* For drivers that need a "login/passwd" form */
1028 __u8 encoding_login_index; /* token index for login token */
1029
1030 /* Transmit power */
1031 __u16 txpower_capa; /* What options are supported */
1032 __u8 num_txpower; /* Number of entries in the list */
1033 __s32 txpower[IW_MAX_TXPOWER]; /* list, in bps */
1034
1035 /* Wireless Extension version info */
1036 __u8 we_version_compiled; /* Must be WIRELESS_EXT */
1037 __u8 we_version_source; /* Last update of source */
1038
1039 /* Retry limits and lifetime */
1040 __u16 retry_capa; /* What retry options are supported */
1041 __u16 retry_flags; /* How to decode max/min retry limit */
1042 __u16 r_time_flags; /* How to decode max/min retry life */
1043 __s32 min_retry; /* Minimal number of retries */
1044 __s32 max_retry; /* Maximal number of retries */
1045 __s32 min_r_time; /* Minimal retry lifetime */
1046 __s32 max_r_time; /* Maximal retry lifetime */
1047
1048 /* Frequency */
1049 __u16 num_channels; /* Number of channels [0; num - 1] */
1050 __u8 num_frequency; /* Number of entry in the list */
1051 struct iw_freq freq[IW_MAX_FREQUENCIES]; /* list */
1052 /* Note : this frequency list doesn't need to fit channel numbers,
1053 * because each entry contain its channel index */
fff9cfd9 1054
baef1865 1055 __u32 enc_capa; /* IW_ENC_CAPA_* bit field */
1da177e4
LT
1056};
1057
1058/*
1059 * Private ioctl interface information
1060 */
1061
1062struct iw_priv_args
1063{
1064 __u32 cmd; /* Number of the ioctl to issue */
1065 __u16 set_args; /* Type and number of args */
1066 __u16 get_args; /* Type and number of args */
1067 char name[IFNAMSIZ]; /* Name of the extension */
1068};
1069
1070/* ----------------------- WIRELESS EVENTS ----------------------- */
1071/*
1072 * Wireless events are carried through the rtnetlink socket to user
1073 * space. They are encapsulated in the IFLA_WIRELESS field of
1074 * a RTM_NEWLINK message.
1075 */
1076
1077/*
1078 * A Wireless Event. Contains basically the same data as the ioctl...
1079 */
1080struct iw_event
1081{
efad798b 1082 __u16 len; /* Real length of this stuff */
1da177e4
LT
1083 __u16 cmd; /* Wireless IOCTL */
1084 union iwreq_data u; /* IOCTL fixed payload */
1085};
1086
1087/* Size of the Event prefix (including padding and alignement junk) */
1088#define IW_EV_LCP_LEN (sizeof(struct iw_event) - sizeof(union iwreq_data))
1089/* Size of the various events */
1090#define IW_EV_CHAR_LEN (IW_EV_LCP_LEN + IFNAMSIZ)
1091#define IW_EV_UINT_LEN (IW_EV_LCP_LEN + sizeof(__u32))
1092#define IW_EV_FREQ_LEN (IW_EV_LCP_LEN + sizeof(struct iw_freq))
1da177e4
LT
1093#define IW_EV_PARAM_LEN (IW_EV_LCP_LEN + sizeof(struct iw_param))
1094#define IW_EV_ADDR_LEN (IW_EV_LCP_LEN + sizeof(struct sockaddr))
1095#define IW_EV_QUAL_LEN (IW_EV_LCP_LEN + sizeof(struct iw_quality))
1096
6582c164
JT
1097/* iw_point events are special. First, the payload (extra data) come at
1098 * the end of the event, so they are bigger than IW_EV_POINT_LEN. Second,
1099 * we omit the pointer, so start at an offset. */
1100#define IW_EV_POINT_OFF (((char *) &(((struct iw_point *) NULL)->length)) - \
1101 (char *) NULL)
1102#define IW_EV_POINT_LEN (IW_EV_LCP_LEN + sizeof(struct iw_point) - \
1103 IW_EV_POINT_OFF)
1da177e4 1104
c2805fbb
JT
1105/* Size of the Event prefix when packed in stream */
1106#define IW_EV_LCP_PK_LEN (4)
1107/* Size of the various events when packed in stream */
1108#define IW_EV_CHAR_PK_LEN (IW_EV_LCP_PK_LEN + IFNAMSIZ)
1109#define IW_EV_UINT_PK_LEN (IW_EV_LCP_PK_LEN + sizeof(__u32))
1110#define IW_EV_FREQ_PK_LEN (IW_EV_LCP_PK_LEN + sizeof(struct iw_freq))
1111#define IW_EV_PARAM_PK_LEN (IW_EV_LCP_PK_LEN + sizeof(struct iw_param))
1112#define IW_EV_ADDR_PK_LEN (IW_EV_LCP_PK_LEN + sizeof(struct sockaddr))
1113#define IW_EV_QUAL_PK_LEN (IW_EV_LCP_PK_LEN + sizeof(struct iw_quality))
1114#define IW_EV_POINT_PK_LEN (IW_EV_LCP_LEN + 4)
1115
1da177e4 1116#endif /* _LINUX_WIRELESS_H */