xref: /linux-6.15/include/uapi/linux/wireless.h (revision 82d00a93)
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 - <[email protected]>
8  * Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved.
9  */
10 
11 #ifndef _UAPI_LINUX_WIRELESS_H
12 #define _UAPI_LINUX_WIRELESS_H
13 
14 /************************** DOCUMENTATION **************************/
15 /*
16  * Initial APIs (1996 -> onward) :
17  * -----------------------------
18  * Basically, the wireless extensions are for now a set of standard ioctl
19  * call + /proc/net/wireless
20  *
21  * The entry /proc/net/wireless give statistics and information on the
22  * driver.
23  * This is better than having each driver having its entry because
24  * its centralised and we may remove the driver module safely.
25  *
26  * Ioctl are used to configure the driver and issue commands.  This is
27  * better than command line options of insmod because we may want to
28  * change dynamically (while the driver is running) some parameters.
29  *
30  * The ioctl mechanimsm are copied from standard devices ioctl.
31  * We have the list of command plus a structure descibing the
32  * data exchanged...
33  * Note that to add these ioctl, I was obliged to modify :
34  *	# net/core/dev.c (two place + add include)
35  *	# net/ipv4/af_inet.c (one place + add include)
36  *
37  * /proc/net/wireless is a copy of /proc/net/dev.
38  * We have a structure for data passed from the driver to /proc/net/wireless
39  * Too add this, I've modified :
40  *	# net/core/dev.c (two other places)
41  *	# include/linux/netdevice.h (one place)
42  *	# include/linux/proc_fs.h (one place)
43  *
44  * New driver API (2002 -> onward) :
45  * -------------------------------
46  * This file is only concerned with the user space API and common definitions.
47  * The new driver API is defined and documented in :
48  *	# include/net/iw_handler.h
49  *
50  * Note as well that /proc/net/wireless implementation has now moved in :
51  *	# net/core/wireless.c
52  *
53  * Wireless Events (2002 -> onward) :
54  * --------------------------------
55  * Events are defined at the end of this file, and implemented in :
56  *	# net/core/wireless.c
57  *
58  * Other comments :
59  * --------------
60  * Do not add here things that are redundant with other mechanisms
61  * (drivers init, ifconfig, /proc/net/dev, ...) and with are not
62  * wireless specific.
63  *
64  * These wireless extensions are not magic : each driver has to provide
65  * support for them...
66  *
67  * IMPORTANT NOTE : As everything in the kernel, this is very much a
68  * work in progress. Contact me if you have ideas of improvements...
69  */
70 
71 /***************************** INCLUDES *****************************/
72 
73 #include <linux/types.h>		/* for __u* and __s* typedefs */
74 #include <linux/socket.h>		/* for "struct sockaddr" et al	*/
75 #include <linux/if.h>			/* for IFNAMSIZ and co... */
76 
77 #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 <[email protected]>)
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  */
676 struct 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  */
687 struct iw_point {
688   void __user	*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  */
702 struct 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  */
712 struct 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  */
727 struct 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  */
739 struct iw_missed {
740 	__u32		beacon;		/* Missed beacons/superframe */
741 };
742 
743 /*
744  *	Quality range (for spy threshold)
745  */
746 struct 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  */
764 struct 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  */
825 struct 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 */
838 struct 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 
851 struct iw_pmksa {
852 	__u32		cmd; /* IW_PMKSA_* */
853 	struct sockaddr	bssid;
854 	__u8		pmkid[IW_PMKID_LEN];
855 };
856 
857 /* IWEVMICHAELMICFAILURE data */
858 struct 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 */
866 struct 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  */
877 struct 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  */
898 union 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 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  */
935 struct 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 
955 struct 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 
1059 struct 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  */
1076 struct 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 /* _UAPI_LINUX_WIRELESS_H */
1112