xref: /openbmc/linux/include/uapi/linux/wireless.h (revision a77e393c)
1 /*
2  * This file define a set of standard wireless extensions
3  *
4  * Version :	22	16.3.07
5  *
6  * Authors :	Jean Tourrilhes - HPL - <jt@hpl.hp.com>
7  * Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved.
8  */
9 
10 #ifndef _UAPI_LINUX_WIRELESS_H
11 #define _UAPI_LINUX_WIRELESS_H
12 
13 /************************** DOCUMENTATION **************************/
14 /*
15  * Initial APIs (1996 -> onward) :
16  * -----------------------------
17  * Basically, the wireless extensions are for now a set of standard ioctl
18  * call + /proc/net/wireless
19  *
20  * The entry /proc/net/wireless give statistics and information on the
21  * driver.
22  * This is better than having each driver having its entry because
23  * its centralised and we may remove the driver module safely.
24  *
25  * Ioctl are used to configure the driver and issue commands.  This is
26  * better than command line options of insmod because we may want to
27  * change dynamically (while the driver is running) some parameters.
28  *
29  * The ioctl mechanimsm are copied from standard devices ioctl.
30  * We have the list of command plus a structure descibing the
31  * data exchanged...
32  * Note that to add these ioctl, I was obliged to modify :
33  *	# net/core/dev.c (two place + add include)
34  *	# net/ipv4/af_inet.c (one place + add include)
35  *
36  * /proc/net/wireless is a copy of /proc/net/dev.
37  * We have a structure for data passed from the driver to /proc/net/wireless
38  * Too add this, I've modified :
39  *	# net/core/dev.c (two other places)
40  *	# include/linux/netdevice.h (one place)
41  *	# include/linux/proc_fs.h (one place)
42  *
43  * New driver API (2002 -> onward) :
44  * -------------------------------
45  * This file is only concerned with the user space API and common definitions.
46  * The new driver API is defined and documented in :
47  *	# include/net/iw_handler.h
48  *
49  * Note as well that /proc/net/wireless implementation has now moved in :
50  *	# net/core/wireless.c
51  *
52  * Wireless Events (2002 -> onward) :
53  * --------------------------------
54  * Events are defined at the end of this file, and implemented in :
55  *	# net/core/wireless.c
56  *
57  * Other comments :
58  * --------------
59  * Do not add here things that are redundant with other mechanisms
60  * (drivers init, ifconfig, /proc/net/dev, ...) and with are not
61  * wireless specific.
62  *
63  * These wireless extensions are not magic : each driver has to provide
64  * support for them...
65  *
66  * IMPORTANT NOTE : As everything in the kernel, this is very much a
67  * work in progress. Contact me if you have ideas of improvements...
68  */
69 
70 /***************************** INCLUDES *****************************/
71 
72 #include <linux/types.h>		/* for __u* and __s* typedefs */
73 #include <linux/socket.h>		/* for "struct sockaddr" et al	*/
74 #include <linux/if.h>			/* for IFNAMSIZ and co... */
75 
76 /***************************** VERSION *****************************/
77 /*
78  * This constant is used to know the availability of the wireless
79  * extensions and to know which version of wireless extensions it is
80  * (there is some stuff that will be added in the future...)
81  * I just plan to increment with each new version.
82  */
83 #define WIRELESS_EXT	22
84 
85 /*
86  * Changes :
87  *
88  * V2 to V3
89  * --------
90  *	Alan Cox start some incompatibles changes. I've integrated a bit more.
91  *	- Encryption renamed to Encode to avoid US regulation problems
92  *	- Frequency changed from float to struct to avoid problems on old 386
93  *
94  * V3 to V4
95  * --------
96  *	- Add sensitivity
97  *
98  * V4 to V5
99  * --------
100  *	- Missing encoding definitions in range
101  *	- Access points stuff
102  *
103  * V5 to V6
104  * --------
105  *	- 802.11 support (ESSID ioctls)
106  *
107  * V6 to V7
108  * --------
109  *	- define IW_ESSID_MAX_SIZE and IW_MAX_AP
110  *
111  * V7 to V8
112  * --------
113  *	- Changed my e-mail address
114  *	- More 802.11 support (nickname, rate, rts, frag)
115  *	- List index in frequencies
116  *
117  * V8 to V9
118  * --------
119  *	- Support for 'mode of operation' (ad-hoc, managed...)
120  *	- Support for unicast and multicast power saving
121  *	- Change encoding to support larger tokens (>64 bits)
122  *	- Updated iw_params (disable, flags) and use it for NWID
123  *	- Extracted iw_point from iwreq for clarity
124  *
125  * V9 to V10
126  * ---------
127  *	- Add PM capability to range structure
128  *	- Add PM modifier : MAX/MIN/RELATIVE
129  *	- Add encoding option : IW_ENCODE_NOKEY
130  *	- Add TxPower ioctls (work like TxRate)
131  *
132  * V10 to V11
133  * ----------
134  *	- Add WE version in range (help backward/forward compatibility)
135  *	- Add retry ioctls (work like PM)
136  *
137  * V11 to V12
138  * ----------
139  *	- Add SIOCSIWSTATS to get /proc/net/wireless programatically
140  *	- Add DEV PRIVATE IOCTL to avoid collisions in SIOCDEVPRIVATE space
141  *	- Add new statistics (frag, retry, beacon)
142  *	- Add average quality (for user space calibration)
143  *
144  * V12 to V13
145  * ----------
146  *	- Document creation of new driver API.
147  *	- Extract union iwreq_data from struct iwreq (for new driver API).
148  *	- Rename SIOCSIWNAME as SIOCSIWCOMMIT
149  *
150  * V13 to V14
151  * ----------
152  *	- Wireless Events support : define struct iw_event
153  *	- Define additional specific event numbers
154  *	- Add "addr" and "param" fields in union iwreq_data
155  *	- AP scanning stuff (SIOCSIWSCAN and friends)
156  *
157  * V14 to V15
158  * ----------
159  *	- Add IW_PRIV_TYPE_ADDR for struct sockaddr private arg
160  *	- Make struct iw_freq signed (both m & e), add explicit padding
161  *	- Add IWEVCUSTOM for driver specific event/scanning token
162  *	- Add IW_MAX_GET_SPY for driver returning a lot of addresses
163  *	- Add IW_TXPOW_RANGE for range of Tx Powers
164  *	- Add IWEVREGISTERED & IWEVEXPIRED events for Access Points
165  *	- Add IW_MODE_MONITOR for passive monitor
166  *
167  * V15 to V16
168  * ----------
169  *	- Increase the number of bitrates in iw_range to 32 (for 802.11g)
170  *	- Increase the number of frequencies in iw_range to 32 (for 802.11b+a)
171  *	- Reshuffle struct iw_range for increases, add filler
172  *	- Increase IW_MAX_AP to 64 for driver returning a lot of addresses
173  *	- Remove IW_MAX_GET_SPY because conflict with enhanced spy support
174  *	- Add SIOCSIWTHRSPY/SIOCGIWTHRSPY and "struct iw_thrspy"
175  *	- Add IW_ENCODE_TEMP and iw_range->encoding_login_index
176  *
177  * V16 to V17
178  * ----------
179  *	- Add flags to frequency -> auto/fixed
180  *	- Document (struct iw_quality *)->updated, add new flags (INVALID)
181  *	- Wireless Event capability in struct iw_range
182  *	- Add support for relative TxPower (yick !)
183  *
184  * V17 to V18 (From Jouni Malinen <j@w1.fi>)
185  * ----------
186  *	- Add support for WPA/WPA2
187  *	- Add extended encoding configuration (SIOCSIWENCODEEXT and
188  *	  SIOCGIWENCODEEXT)
189  *	- Add SIOCSIWGENIE/SIOCGIWGENIE
190  *	- Add SIOCSIWMLME
191  *	- Add SIOCSIWPMKSA
192  *	- Add struct iw_range bit field for supported encoding capabilities
193  *	- Add optional scan request parameters for SIOCSIWSCAN
194  *	- Add SIOCSIWAUTH/SIOCGIWAUTH for setting authentication and WPA
195  *	  related parameters (extensible up to 4096 parameter values)
196  *	- Add wireless events: IWEVGENIE, IWEVMICHAELMICFAILURE,
197  *	  IWEVASSOCREQIE, IWEVASSOCRESPIE, IWEVPMKIDCAND
198  *
199  * V18 to V19
200  * ----------
201  *	- Remove (struct iw_point *)->pointer from events and streams
202  *	- Remove header includes to help user space
203  *	- Increase IW_ENCODING_TOKEN_MAX from 32 to 64
204  *	- Add IW_QUAL_ALL_UPDATED and IW_QUAL_ALL_INVALID macros
205  *	- Add explicit flag to tell stats are in dBm : IW_QUAL_DBM
206  *	- Add IW_IOCTL_IDX() and IW_EVENT_IDX() macros
207  *
208  * V19 to V20
209  * ----------
210  *	- RtNetlink requests support (SET/GET)
211  *
212  * V20 to V21
213  * ----------
214  *	- Remove (struct net_device *)->get_wireless_stats()
215  *	- Change length in ESSID and NICK to strlen() instead of strlen()+1
216  *	- Add IW_RETRY_SHORT/IW_RETRY_LONG retry modifiers
217  *	- Power/Retry relative values no longer * 100000
218  *	- Add explicit flag to tell stats are in 802.11k RCPI : IW_QUAL_RCPI
219  *
220  * V21 to V22
221  * ----------
222  *	- Prevent leaking of kernel space in stream on 64 bits.
223  */
224 
225 /**************************** CONSTANTS ****************************/
226 
227 /* -------------------------- IOCTL LIST -------------------------- */
228 
229 /* Wireless Identification */
230 #define SIOCSIWCOMMIT	0x8B00		/* Commit pending changes to driver */
231 #define SIOCGIWNAME	0x8B01		/* get name == wireless protocol */
232 /* SIOCGIWNAME is used to verify the presence of Wireless Extensions.
233  * Common values : "IEEE 802.11-DS", "IEEE 802.11-FH", "IEEE 802.11b"...
234  * Don't put the name of your driver there, it's useless. */
235 
236 /* Basic operations */
237 #define SIOCSIWNWID	0x8B02		/* set network id (pre-802.11) */
238 #define SIOCGIWNWID	0x8B03		/* get network id (the cell) */
239 #define SIOCSIWFREQ	0x8B04		/* set channel/frequency (Hz) */
240 #define SIOCGIWFREQ	0x8B05		/* get channel/frequency (Hz) */
241 #define SIOCSIWMODE	0x8B06		/* set operation mode */
242 #define SIOCGIWMODE	0x8B07		/* get operation mode */
243 #define SIOCSIWSENS	0x8B08		/* set sensitivity (dBm) */
244 #define SIOCGIWSENS	0x8B09		/* get sensitivity (dBm) */
245 
246 /* Informative stuff */
247 #define SIOCSIWRANGE	0x8B0A		/* Unused */
248 #define SIOCGIWRANGE	0x8B0B		/* Get range of parameters */
249 #define SIOCSIWPRIV	0x8B0C		/* Unused */
250 #define SIOCGIWPRIV	0x8B0D		/* get private ioctl interface info */
251 #define SIOCSIWSTATS	0x8B0E		/* Unused */
252 #define SIOCGIWSTATS	0x8B0F		/* Get /proc/net/wireless stats */
253 /* SIOCGIWSTATS is strictly used between user space and the kernel, and
254  * is never passed to the driver (i.e. the driver will never see it). */
255 
256 /* Spy support (statistics per MAC address - used for Mobile IP support) */
257 #define SIOCSIWSPY	0x8B10		/* set spy addresses */
258 #define SIOCGIWSPY	0x8B11		/* get spy info (quality of link) */
259 #define SIOCSIWTHRSPY	0x8B12		/* set spy threshold (spy event) */
260 #define SIOCGIWTHRSPY	0x8B13		/* get spy threshold */
261 
262 /* Access Point manipulation */
263 #define SIOCSIWAP	0x8B14		/* set access point MAC addresses */
264 #define SIOCGIWAP	0x8B15		/* get access point MAC addresses */
265 #define SIOCGIWAPLIST	0x8B17		/* Deprecated in favor of scanning */
266 #define SIOCSIWSCAN	0x8B18		/* trigger scanning (list cells) */
267 #define SIOCGIWSCAN	0x8B19		/* get scanning results */
268 
269 /* 802.11 specific support */
270 #define SIOCSIWESSID	0x8B1A		/* set ESSID (network name) */
271 #define SIOCGIWESSID	0x8B1B		/* get ESSID */
272 #define SIOCSIWNICKN	0x8B1C		/* set node name/nickname */
273 #define SIOCGIWNICKN	0x8B1D		/* get node name/nickname */
274 /* As the ESSID and NICKN are strings up to 32 bytes long, it doesn't fit
275  * within the 'iwreq' structure, so we need to use the 'data' member to
276  * point to a string in user space, like it is done for RANGE... */
277 
278 /* Other parameters useful in 802.11 and some other devices */
279 #define SIOCSIWRATE	0x8B20		/* set default bit rate (bps) */
280 #define SIOCGIWRATE	0x8B21		/* get default bit rate (bps) */
281 #define SIOCSIWRTS	0x8B22		/* set RTS/CTS threshold (bytes) */
282 #define SIOCGIWRTS	0x8B23		/* get RTS/CTS threshold (bytes) */
283 #define SIOCSIWFRAG	0x8B24		/* set fragmentation thr (bytes) */
284 #define SIOCGIWFRAG	0x8B25		/* get fragmentation thr (bytes) */
285 #define SIOCSIWTXPOW	0x8B26		/* set transmit power (dBm) */
286 #define SIOCGIWTXPOW	0x8B27		/* get transmit power (dBm) */
287 #define SIOCSIWRETRY	0x8B28		/* set retry limits and lifetime */
288 #define SIOCGIWRETRY	0x8B29		/* get retry limits and lifetime */
289 
290 /* Encoding stuff (scrambling, hardware security, WEP...) */
291 #define SIOCSIWENCODE	0x8B2A		/* set encoding token & mode */
292 #define SIOCGIWENCODE	0x8B2B		/* get encoding token & mode */
293 /* Power saving stuff (power management, unicast and multicast) */
294 #define SIOCSIWPOWER	0x8B2C		/* set Power Management settings */
295 #define SIOCGIWPOWER	0x8B2D		/* get Power Management settings */
296 
297 /* WPA : Generic IEEE 802.11 informatiom element (e.g., for WPA/RSN/WMM).
298  * This ioctl uses struct iw_point and data buffer that includes IE id and len
299  * fields. More than one IE may be included in the request. Setting the generic
300  * IE to empty buffer (len=0) removes the generic IE from the driver. Drivers
301  * are allowed to generate their own WPA/RSN IEs, but in these cases, drivers
302  * are required to report the used IE as a wireless event, e.g., when
303  * associating with an AP. */
304 #define SIOCSIWGENIE	0x8B30		/* set generic IE */
305 #define SIOCGIWGENIE	0x8B31		/* get generic IE */
306 
307 /* WPA : IEEE 802.11 MLME requests */
308 #define SIOCSIWMLME	0x8B16		/* request MLME operation; uses
309 					 * struct iw_mlme */
310 /* WPA : Authentication mode parameters */
311 #define SIOCSIWAUTH	0x8B32		/* set authentication mode params */
312 #define SIOCGIWAUTH	0x8B33		/* get authentication mode params */
313 
314 /* WPA : Extended version of encoding configuration */
315 #define SIOCSIWENCODEEXT 0x8B34		/* set encoding token & mode */
316 #define SIOCGIWENCODEEXT 0x8B35		/* get encoding token & mode */
317 
318 /* WPA2 : PMKSA cache management */
319 #define SIOCSIWPMKSA	0x8B36		/* PMKSA cache operation */
320 
321 /* -------------------- DEV PRIVATE IOCTL LIST -------------------- */
322 
323 /* These 32 ioctl are wireless device private, for 16 commands.
324  * Each driver is free to use them for whatever purpose it chooses,
325  * however the driver *must* export the description of those ioctls
326  * with SIOCGIWPRIV and *must* use arguments as defined below.
327  * If you don't follow those rules, DaveM is going to hate you (reason :
328  * it make mixed 32/64bit operation impossible).
329  */
330 #define SIOCIWFIRSTPRIV	0x8BE0
331 #define SIOCIWLASTPRIV	0x8BFF
332 /* Previously, we were using SIOCDEVPRIVATE, but we now have our
333  * separate range because of collisions with other tools such as
334  * 'mii-tool'.
335  * We now have 32 commands, so a bit more space ;-).
336  * Also, all 'even' commands are only usable by root and don't return the
337  * content of ifr/iwr to user (but you are not obliged to use the set/get
338  * convention, just use every other two command). More details in iwpriv.c.
339  * And I repeat : you are not forced to use them with iwpriv, but you
340  * must be compliant with it.
341  */
342 
343 /* ------------------------- IOCTL STUFF ------------------------- */
344 
345 /* The first and the last (range) */
346 #define SIOCIWFIRST	0x8B00
347 #define SIOCIWLAST	SIOCIWLASTPRIV		/* 0x8BFF */
348 #define IW_IOCTL_IDX(cmd)	((cmd) - SIOCIWFIRST)
349 #define IW_HANDLER(id, func)			\
350 	[IW_IOCTL_IDX(id)] = func
351 
352 /* Odd : get (world access), even : set (root access) */
353 #define IW_IS_SET(cmd)	(!((cmd) & 0x1))
354 #define IW_IS_GET(cmd)	((cmd) & 0x1)
355 
356 /* ----------------------- WIRELESS EVENTS ----------------------- */
357 /* Those are *NOT* ioctls, do not issue request on them !!! */
358 /* Most events use the same identifier as ioctl requests */
359 
360 #define IWEVTXDROP	0x8C00		/* Packet dropped to excessive retry */
361 #define IWEVQUAL	0x8C01		/* Quality part of statistics (scan) */
362 #define IWEVCUSTOM	0x8C02		/* Driver specific ascii string */
363 #define IWEVREGISTERED	0x8C03		/* Discovered a new node (AP mode) */
364 #define IWEVEXPIRED	0x8C04		/* Expired a node (AP mode) */
365 #define IWEVGENIE	0x8C05		/* Generic IE (WPA, RSN, WMM, ..)
366 					 * (scan results); This includes id and
367 					 * length fields. One IWEVGENIE may
368 					 * contain more than one IE. Scan
369 					 * results may contain one or more
370 					 * IWEVGENIE events. */
371 #define IWEVMICHAELMICFAILURE 0x8C06	/* Michael MIC failure
372 					 * (struct iw_michaelmicfailure)
373 					 */
374 #define IWEVASSOCREQIE	0x8C07		/* IEs used in (Re)Association Request.
375 					 * The data includes id and length
376 					 * fields and may contain more than one
377 					 * IE. This event is required in
378 					 * Managed mode if the driver
379 					 * generates its own WPA/RSN IE. This
380 					 * should be sent just before
381 					 * IWEVREGISTERED event for the
382 					 * association. */
383 #define IWEVASSOCRESPIE	0x8C08		/* IEs used in (Re)Association
384 					 * Response. The data includes id and
385 					 * length fields and may contain more
386 					 * than one IE. This may be sent
387 					 * between IWEVASSOCREQIE and
388 					 * IWEVREGISTERED events for the
389 					 * association. */
390 #define IWEVPMKIDCAND	0x8C09		/* PMKID candidate for RSN
391 					 * pre-authentication
392 					 * (struct iw_pmkid_cand) */
393 
394 #define IWEVFIRST	0x8C00
395 #define IW_EVENT_IDX(cmd)	((cmd) - IWEVFIRST)
396 
397 /* ------------------------- PRIVATE INFO ------------------------- */
398 /*
399  * The following is used with SIOCGIWPRIV. It allow a driver to define
400  * the interface (name, type of data) for its private ioctl.
401  * Privates ioctl are SIOCIWFIRSTPRIV -> SIOCIWLASTPRIV
402  */
403 
404 #define IW_PRIV_TYPE_MASK	0x7000	/* Type of arguments */
405 #define IW_PRIV_TYPE_NONE	0x0000
406 #define IW_PRIV_TYPE_BYTE	0x1000	/* Char as number */
407 #define IW_PRIV_TYPE_CHAR	0x2000	/* Char as character */
408 #define IW_PRIV_TYPE_INT	0x4000	/* 32 bits int */
409 #define IW_PRIV_TYPE_FLOAT	0x5000	/* struct iw_freq */
410 #define IW_PRIV_TYPE_ADDR	0x6000	/* struct sockaddr */
411 
412 #define IW_PRIV_SIZE_FIXED	0x0800	/* Variable or fixed number of args */
413 
414 #define IW_PRIV_SIZE_MASK	0x07FF	/* Max number of those args */
415 
416 /*
417  * Note : if the number of args is fixed and the size < 16 octets,
418  * instead of passing a pointer we will put args in the iwreq struct...
419  */
420 
421 /* ----------------------- OTHER CONSTANTS ----------------------- */
422 
423 /* Maximum frequencies in the range struct */
424 #define IW_MAX_FREQUENCIES	32
425 /* Note : if you have something like 80 frequencies,
426  * don't increase this constant and don't fill the frequency list.
427  * The user will be able to set by channel anyway... */
428 
429 /* Maximum bit rates in the range struct */
430 #define IW_MAX_BITRATES		32
431 
432 /* Maximum tx powers in the range struct */
433 #define IW_MAX_TXPOWER		8
434 /* Note : if you more than 8 TXPowers, just set the max and min or
435  * a few of them in the struct iw_range. */
436 
437 /* Maximum of address that you may set with SPY */
438 #define IW_MAX_SPY		8
439 
440 /* Maximum of address that you may get in the
441    list of access points in range */
442 #define IW_MAX_AP		64
443 
444 /* Maximum size of the ESSID and NICKN strings */
445 #define IW_ESSID_MAX_SIZE	32
446 
447 /* Modes of operation */
448 #define IW_MODE_AUTO	0	/* Let the driver decides */
449 #define IW_MODE_ADHOC	1	/* Single cell network */
450 #define IW_MODE_INFRA	2	/* Multi cell network, roaming, ... */
451 #define IW_MODE_MASTER	3	/* Synchronisation master or Access Point */
452 #define IW_MODE_REPEAT	4	/* Wireless Repeater (forwarder) */
453 #define IW_MODE_SECOND	5	/* Secondary master/repeater (backup) */
454 #define IW_MODE_MONITOR	6	/* Passive monitor (listen only) */
455 #define IW_MODE_MESH	7	/* Mesh (IEEE 802.11s) network */
456 
457 /* Statistics flags (bitmask in updated) */
458 #define IW_QUAL_QUAL_UPDATED	0x01	/* Value was updated since last read */
459 #define IW_QUAL_LEVEL_UPDATED	0x02
460 #define IW_QUAL_NOISE_UPDATED	0x04
461 #define IW_QUAL_ALL_UPDATED	0x07
462 #define IW_QUAL_DBM		0x08	/* Level + Noise are dBm */
463 #define IW_QUAL_QUAL_INVALID	0x10	/* Driver doesn't provide value */
464 #define IW_QUAL_LEVEL_INVALID	0x20
465 #define IW_QUAL_NOISE_INVALID	0x40
466 #define IW_QUAL_RCPI		0x80	/* Level + Noise are 802.11k RCPI */
467 #define IW_QUAL_ALL_INVALID	0x70
468 
469 /* Frequency flags */
470 #define IW_FREQ_AUTO		0x00	/* Let the driver decides */
471 #define IW_FREQ_FIXED		0x01	/* Force a specific value */
472 
473 /* Maximum number of size of encoding token available
474  * they are listed in the range structure */
475 #define IW_MAX_ENCODING_SIZES	8
476 
477 /* Maximum size of the encoding token in bytes */
478 #define IW_ENCODING_TOKEN_MAX	64	/* 512 bits (for now) */
479 
480 /* Flags for encoding (along with the token) */
481 #define IW_ENCODE_INDEX		0x00FF	/* Token index (if needed) */
482 #define IW_ENCODE_FLAGS		0xFF00	/* Flags defined below */
483 #define IW_ENCODE_MODE		0xF000	/* Modes defined below */
484 #define IW_ENCODE_DISABLED	0x8000	/* Encoding disabled */
485 #define IW_ENCODE_ENABLED	0x0000	/* Encoding enabled */
486 #define IW_ENCODE_RESTRICTED	0x4000	/* Refuse non-encoded packets */
487 #define IW_ENCODE_OPEN		0x2000	/* Accept non-encoded packets */
488 #define IW_ENCODE_NOKEY		0x0800  /* Key is write only, so not present */
489 #define IW_ENCODE_TEMP		0x0400  /* Temporary key */
490 
491 /* Power management flags available (along with the value, if any) */
492 #define IW_POWER_ON		0x0000	/* No details... */
493 #define IW_POWER_TYPE		0xF000	/* Type of parameter */
494 #define IW_POWER_PERIOD		0x1000	/* Value is a period/duration of  */
495 #define IW_POWER_TIMEOUT	0x2000	/* Value is a timeout (to go asleep) */
496 #define IW_POWER_MODE		0x0F00	/* Power Management mode */
497 #define IW_POWER_UNICAST_R	0x0100	/* Receive only unicast messages */
498 #define IW_POWER_MULTICAST_R	0x0200	/* Receive only multicast messages */
499 #define IW_POWER_ALL_R		0x0300	/* Receive all messages though PM */
500 #define IW_POWER_FORCE_S	0x0400	/* Force PM procedure for sending unicast */
501 #define IW_POWER_REPEATER	0x0800	/* Repeat broadcast messages in PM period */
502 #define IW_POWER_MODIFIER	0x000F	/* Modify a parameter */
503 #define IW_POWER_MIN		0x0001	/* Value is a minimum  */
504 #define IW_POWER_MAX		0x0002	/* Value is a maximum */
505 #define IW_POWER_RELATIVE	0x0004	/* Value is not in seconds/ms/us */
506 
507 /* Transmit Power flags available */
508 #define IW_TXPOW_TYPE		0x00FF	/* Type of value */
509 #define IW_TXPOW_DBM		0x0000	/* Value is in dBm */
510 #define IW_TXPOW_MWATT		0x0001	/* Value is in mW */
511 #define IW_TXPOW_RELATIVE	0x0002	/* Value is in arbitrary units */
512 #define IW_TXPOW_RANGE		0x1000	/* Range of value between min/max */
513 
514 /* Retry limits and lifetime flags available */
515 #define IW_RETRY_ON		0x0000	/* No details... */
516 #define IW_RETRY_TYPE		0xF000	/* Type of parameter */
517 #define IW_RETRY_LIMIT		0x1000	/* Maximum number of retries*/
518 #define IW_RETRY_LIFETIME	0x2000	/* Maximum duration of retries in us */
519 #define IW_RETRY_MODIFIER	0x00FF	/* Modify a parameter */
520 #define IW_RETRY_MIN		0x0001	/* Value is a minimum  */
521 #define IW_RETRY_MAX		0x0002	/* Value is a maximum */
522 #define IW_RETRY_RELATIVE	0x0004	/* Value is not in seconds/ms/us */
523 #define IW_RETRY_SHORT		0x0010	/* Value is for short packets  */
524 #define IW_RETRY_LONG		0x0020	/* Value is for long packets */
525 
526 /* Scanning request flags */
527 #define IW_SCAN_DEFAULT		0x0000	/* Default scan of the driver */
528 #define IW_SCAN_ALL_ESSID	0x0001	/* Scan all ESSIDs */
529 #define IW_SCAN_THIS_ESSID	0x0002	/* Scan only this ESSID */
530 #define IW_SCAN_ALL_FREQ	0x0004	/* Scan all Frequencies */
531 #define IW_SCAN_THIS_FREQ	0x0008	/* Scan only this Frequency */
532 #define IW_SCAN_ALL_MODE	0x0010	/* Scan all Modes */
533 #define IW_SCAN_THIS_MODE	0x0020	/* Scan only this Mode */
534 #define IW_SCAN_ALL_RATE	0x0040	/* Scan all Bit-Rates */
535 #define IW_SCAN_THIS_RATE	0x0080	/* Scan only this Bit-Rate */
536 /* struct iw_scan_req scan_type */
537 #define IW_SCAN_TYPE_ACTIVE 0
538 #define IW_SCAN_TYPE_PASSIVE 1
539 /* Maximum size of returned data */
540 #define IW_SCAN_MAX_DATA	4096	/* In bytes */
541 
542 /* Scan capability flags - in (struct iw_range *)->scan_capa */
543 #define IW_SCAN_CAPA_NONE		0x00
544 #define IW_SCAN_CAPA_ESSID		0x01
545 #define IW_SCAN_CAPA_BSSID		0x02
546 #define IW_SCAN_CAPA_CHANNEL	0x04
547 #define IW_SCAN_CAPA_MODE		0x08
548 #define IW_SCAN_CAPA_RATE		0x10
549 #define IW_SCAN_CAPA_TYPE		0x20
550 #define IW_SCAN_CAPA_TIME		0x40
551 
552 /* Max number of char in custom event - use multiple of them if needed */
553 #define IW_CUSTOM_MAX		256	/* In bytes */
554 
555 /* Generic information element */
556 #define IW_GENERIC_IE_MAX	1024
557 
558 /* MLME requests (SIOCSIWMLME / struct iw_mlme) */
559 #define IW_MLME_DEAUTH		0
560 #define IW_MLME_DISASSOC	1
561 #define IW_MLME_AUTH		2
562 #define IW_MLME_ASSOC		3
563 
564 /* SIOCSIWAUTH/SIOCGIWAUTH struct iw_param flags */
565 #define IW_AUTH_INDEX		0x0FFF
566 #define IW_AUTH_FLAGS		0xF000
567 /* SIOCSIWAUTH/SIOCGIWAUTH parameters (0 .. 4095)
568  * (IW_AUTH_INDEX mask in struct iw_param flags; this is the index of the
569  * parameter that is being set/get to; value will be read/written to
570  * struct iw_param value field) */
571 #define IW_AUTH_WPA_VERSION		0
572 #define IW_AUTH_CIPHER_PAIRWISE		1
573 #define IW_AUTH_CIPHER_GROUP		2
574 #define IW_AUTH_KEY_MGMT		3
575 #define IW_AUTH_TKIP_COUNTERMEASURES	4
576 #define IW_AUTH_DROP_UNENCRYPTED	5
577 #define IW_AUTH_80211_AUTH_ALG		6
578 #define IW_AUTH_WPA_ENABLED		7
579 #define IW_AUTH_RX_UNENCRYPTED_EAPOL	8
580 #define IW_AUTH_ROAMING_CONTROL		9
581 #define IW_AUTH_PRIVACY_INVOKED		10
582 #define IW_AUTH_CIPHER_GROUP_MGMT	11
583 #define IW_AUTH_MFP			12
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, IW_AUTH_GROUP_CIPHER, and IW_AUTH_CIPHER_GROUP_MGMT
591  * values (bit field) */
592 #define IW_AUTH_CIPHER_NONE	0x00000001
593 #define IW_AUTH_CIPHER_WEP40	0x00000002
594 #define IW_AUTH_CIPHER_TKIP	0x00000004
595 #define IW_AUTH_CIPHER_CCMP	0x00000008
596 #define IW_AUTH_CIPHER_WEP104	0x00000010
597 #define IW_AUTH_CIPHER_AES_CMAC	0x00000020
598 
599 /* IW_AUTH_KEY_MGMT values (bit field) */
600 #define IW_AUTH_KEY_MGMT_802_1X	1
601 #define IW_AUTH_KEY_MGMT_PSK	2
602 
603 /* IW_AUTH_80211_AUTH_ALG values (bit field) */
604 #define IW_AUTH_ALG_OPEN_SYSTEM	0x00000001
605 #define IW_AUTH_ALG_SHARED_KEY	0x00000002
606 #define IW_AUTH_ALG_LEAP	0x00000004
607 
608 /* IW_AUTH_ROAMING_CONTROL values */
609 #define IW_AUTH_ROAMING_ENABLE	0	/* driver/firmware based roaming */
610 #define IW_AUTH_ROAMING_DISABLE	1	/* user space program used for roaming
611 					 * control */
612 
613 /* IW_AUTH_MFP (management frame protection) values */
614 #define IW_AUTH_MFP_DISABLED	0	/* MFP disabled */
615 #define IW_AUTH_MFP_OPTIONAL	1	/* MFP optional */
616 #define IW_AUTH_MFP_REQUIRED	2	/* MFP required */
617 
618 /* SIOCSIWENCODEEXT definitions */
619 #define IW_ENCODE_SEQ_MAX_SIZE	8
620 /* struct iw_encode_ext ->alg */
621 #define IW_ENCODE_ALG_NONE	0
622 #define IW_ENCODE_ALG_WEP	1
623 #define IW_ENCODE_ALG_TKIP	2
624 #define IW_ENCODE_ALG_CCMP	3
625 #define IW_ENCODE_ALG_PMK	4
626 #define IW_ENCODE_ALG_AES_CMAC	5
627 /* struct iw_encode_ext ->ext_flags */
628 #define IW_ENCODE_EXT_TX_SEQ_VALID	0x00000001
629 #define IW_ENCODE_EXT_RX_SEQ_VALID	0x00000002
630 #define IW_ENCODE_EXT_GROUP_KEY		0x00000004
631 #define IW_ENCODE_EXT_SET_TX_KEY	0x00000008
632 
633 /* IWEVMICHAELMICFAILURE : struct iw_michaelmicfailure ->flags */
634 #define IW_MICFAILURE_KEY_ID	0x00000003 /* Key ID 0..3 */
635 #define IW_MICFAILURE_GROUP	0x00000004
636 #define IW_MICFAILURE_PAIRWISE	0x00000008
637 #define IW_MICFAILURE_STAKEY	0x00000010
638 #define IW_MICFAILURE_COUNT	0x00000060 /* 1 or 2 (0 = count not supported)
639 					    */
640 
641 /* Bit field values for enc_capa in struct iw_range */
642 #define IW_ENC_CAPA_WPA		0x00000001
643 #define IW_ENC_CAPA_WPA2	0x00000002
644 #define IW_ENC_CAPA_CIPHER_TKIP	0x00000004
645 #define IW_ENC_CAPA_CIPHER_CCMP	0x00000008
646 #define IW_ENC_CAPA_4WAY_HANDSHAKE	0x00000010
647 
648 /* Event capability macros - in (struct iw_range *)->event_capa
649  * Because we have more than 32 possible events, we use an array of
650  * 32 bit bitmasks. Note : 32 bits = 0x20 = 2^5. */
651 #define IW_EVENT_CAPA_BASE(cmd)		((cmd >= SIOCIWFIRSTPRIV) ? \
652 					 (cmd - SIOCIWFIRSTPRIV + 0x60) : \
653 					 (cmd - SIOCIWFIRST))
654 #define IW_EVENT_CAPA_INDEX(cmd)	(IW_EVENT_CAPA_BASE(cmd) >> 5)
655 #define IW_EVENT_CAPA_MASK(cmd)		(1 << (IW_EVENT_CAPA_BASE(cmd) & 0x1F))
656 /* Event capability constants - event autogenerated by the kernel
657  * This list is valid for most 802.11 devices, customise as needed... */
658 #define IW_EVENT_CAPA_K_0	(IW_EVENT_CAPA_MASK(0x8B04) | \
659 				 IW_EVENT_CAPA_MASK(0x8B06) | \
660 				 IW_EVENT_CAPA_MASK(0x8B1A))
661 #define IW_EVENT_CAPA_K_1	(IW_EVENT_CAPA_MASK(0x8B2A))
662 /* "Easy" macro to set events in iw_range (less efficient) */
663 #define IW_EVENT_CAPA_SET(event_capa, cmd) (event_capa[IW_EVENT_CAPA_INDEX(cmd)] |= IW_EVENT_CAPA_MASK(cmd))
664 #define IW_EVENT_CAPA_SET_KERNEL(event_capa) {event_capa[0] |= IW_EVENT_CAPA_K_0; event_capa[1] |= IW_EVENT_CAPA_K_1; }
665 
666 
667 /****************************** TYPES ******************************/
668 
669 /* --------------------------- SUBTYPES --------------------------- */
670 /*
671  *	Generic format for most parameters that fit in an int
672  */
673 struct iw_param {
674   __s32		value;		/* The value of the parameter itself */
675   __u8		fixed;		/* Hardware should not use auto select */
676   __u8		disabled;	/* Disable the feature */
677   __u16		flags;		/* Various specifc flags (if any) */
678 };
679 
680 /*
681  *	For all data larger than 16 octets, we need to use a
682  *	pointer to memory allocated in user space.
683  */
684 struct iw_point {
685   void __user	*pointer;	/* Pointer to the data  (in user space) */
686   __u16		length;		/* number of fields or size in bytes */
687   __u16		flags;		/* Optional params */
688 };
689 
690 
691 /*
692  *	A frequency
693  *	For numbers lower than 10^9, we encode the number in 'm' and
694  *	set 'e' to 0
695  *	For number greater than 10^9, we divide it by the lowest power
696  *	of 10 to get 'm' lower than 10^9, with 'm'= f / (10^'e')...
697  *	The power of 10 is in 'e', the result of the division is in 'm'.
698  */
699 struct iw_freq {
700 	__s32		m;		/* Mantissa */
701 	__s16		e;		/* Exponent */
702 	__u8		i;		/* List index (when in range struct) */
703 	__u8		flags;		/* Flags (fixed/auto) */
704 };
705 
706 /*
707  *	Quality of the link
708  */
709 struct iw_quality {
710 	__u8		qual;		/* link quality (%retries, SNR,
711 					   %missed beacons or better...) */
712 	__u8		level;		/* signal level (dBm) */
713 	__u8		noise;		/* noise level (dBm) */
714 	__u8		updated;	/* Flags to know if updated */
715 };
716 
717 /*
718  *	Packet discarded in the wireless adapter due to
719  *	"wireless" specific problems...
720  *	Note : the list of counter and statistics in net_device_stats
721  *	is already pretty exhaustive, and you should use that first.
722  *	This is only additional stats...
723  */
724 struct iw_discarded {
725 	__u32		nwid;		/* Rx : Wrong nwid/essid */
726 	__u32		code;		/* Rx : Unable to code/decode (WEP) */
727 	__u32		fragment;	/* Rx : Can't perform MAC reassembly */
728 	__u32		retries;	/* Tx : Max MAC retries num reached */
729 	__u32		misc;		/* Others cases */
730 };
731 
732 /*
733  *	Packet/Time period missed in the wireless adapter due to
734  *	"wireless" specific problems...
735  */
736 struct iw_missed {
737 	__u32		beacon;		/* Missed beacons/superframe */
738 };
739 
740 /*
741  *	Quality range (for spy threshold)
742  */
743 struct iw_thrspy {
744 	struct sockaddr		addr;		/* Source address (hw/mac) */
745 	struct iw_quality	qual;		/* Quality of the link */
746 	struct iw_quality	low;		/* Low threshold */
747 	struct iw_quality	high;		/* High threshold */
748 };
749 
750 /*
751  *	Optional data for scan request
752  *
753  *	Note: these optional parameters are controlling parameters for the
754  *	scanning behavior, these do not apply to getting scan results
755  *	(SIOCGIWSCAN). Drivers are expected to keep a local BSS table and
756  *	provide a merged results with all BSSes even if the previous scan
757  *	request limited scanning to a subset, e.g., by specifying an SSID.
758  *	Especially, scan results are required to include an entry for the
759  *	current BSS if the driver is in Managed mode and associated with an AP.
760  */
761 struct iw_scan_req {
762 	__u8		scan_type; /* IW_SCAN_TYPE_{ACTIVE,PASSIVE} */
763 	__u8		essid_len;
764 	__u8		num_channels; /* num entries in channel_list;
765 				       * 0 = scan all allowed channels */
766 	__u8		flags; /* reserved as padding; use zero, this may
767 				* be used in the future for adding flags
768 				* to request different scan behavior */
769 	struct sockaddr	bssid; /* ff:ff:ff:ff:ff:ff for broadcast BSSID or
770 				* individual address of a specific BSS */
771 
772 	/*
773 	 * Use this ESSID if IW_SCAN_THIS_ESSID flag is used instead of using
774 	 * the current ESSID. This allows scan requests for specific ESSID
775 	 * without having to change the current ESSID and potentially breaking
776 	 * the current association.
777 	 */
778 	__u8		essid[IW_ESSID_MAX_SIZE];
779 
780 	/*
781 	 * Optional parameters for changing the default scanning behavior.
782 	 * These are based on the MLME-SCAN.request from IEEE Std 802.11.
783 	 * TU is 1.024 ms. If these are set to 0, driver is expected to use
784 	 * reasonable default values. min_channel_time defines the time that
785 	 * will be used to wait for the first reply on each channel. If no
786 	 * replies are received, next channel will be scanned after this. If
787 	 * replies are received, total time waited on the channel is defined by
788 	 * max_channel_time.
789 	 */
790 	__u32		min_channel_time; /* in TU */
791 	__u32		max_channel_time; /* in TU */
792 
793 	struct iw_freq	channel_list[IW_MAX_FREQUENCIES];
794 };
795 
796 /* ------------------------- WPA SUPPORT ------------------------- */
797 
798 /*
799  *	Extended data structure for get/set encoding (this is used with
800  *	SIOCSIWENCODEEXT/SIOCGIWENCODEEXT. struct iw_point and IW_ENCODE_*
801  *	flags are used in the same way as with SIOCSIWENCODE/SIOCGIWENCODE and
802  *	only the data contents changes (key data -> this structure, including
803  *	key data).
804  *
805  *	If the new key is the first group key, it will be set as the default
806  *	TX key. Otherwise, default TX key index is only changed if
807  *	IW_ENCODE_EXT_SET_TX_KEY flag is set.
808  *
809  *	Key will be changed with SIOCSIWENCODEEXT in all cases except for
810  *	special "change TX key index" operation which is indicated by setting
811  *	key_len = 0 and ext_flags |= IW_ENCODE_EXT_SET_TX_KEY.
812  *
813  *	tx_seq/rx_seq are only used when respective
814  *	IW_ENCODE_EXT_{TX,RX}_SEQ_VALID flag is set in ext_flags. Normal
815  *	TKIP/CCMP operation is to set RX seq with SIOCSIWENCODEEXT and start
816  *	TX seq from zero whenever key is changed. SIOCGIWENCODEEXT is normally
817  *	used only by an Authenticator (AP or an IBSS station) to get the
818  *	current TX sequence number. Using TX_SEQ_VALID for SIOCSIWENCODEEXT and
819  *	RX_SEQ_VALID for SIOCGIWENCODEEXT are optional, but can be useful for
820  *	debugging/testing.
821  */
822 struct iw_encode_ext {
823 	__u32		ext_flags; /* IW_ENCODE_EXT_* */
824 	__u8		tx_seq[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */
825 	__u8		rx_seq[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */
826 	struct sockaddr	addr; /* ff:ff:ff:ff:ff:ff for broadcast/multicast
827 			       * (group) keys or unicast address for
828 			       * individual keys */
829 	__u16		alg; /* IW_ENCODE_ALG_* */
830 	__u16		key_len;
831 	__u8		key[0];
832 };
833 
834 /* SIOCSIWMLME data */
835 struct iw_mlme {
836 	__u16		cmd; /* IW_MLME_* */
837 	__u16		reason_code;
838 	struct sockaddr	addr;
839 };
840 
841 /* SIOCSIWPMKSA data */
842 #define IW_PMKSA_ADD		1
843 #define IW_PMKSA_REMOVE		2
844 #define IW_PMKSA_FLUSH		3
845 
846 #define IW_PMKID_LEN	16
847 
848 struct iw_pmksa {
849 	__u32		cmd; /* IW_PMKSA_* */
850 	struct sockaddr	bssid;
851 	__u8		pmkid[IW_PMKID_LEN];
852 };
853 
854 /* IWEVMICHAELMICFAILURE data */
855 struct iw_michaelmicfailure {
856 	__u32		flags;
857 	struct sockaddr	src_addr;
858 	__u8		tsc[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */
859 };
860 
861 /* IWEVPMKIDCAND data */
862 #define IW_PMKID_CAND_PREAUTH	0x00000001 /* RNS pre-authentication enabled */
863 struct iw_pmkid_cand {
864 	__u32		flags; /* IW_PMKID_CAND_* */
865 	__u32		index; /* the smaller the index, the higher the
866 				* priority */
867 	struct sockaddr	bssid;
868 };
869 
870 /* ------------------------ WIRELESS STATS ------------------------ */
871 /*
872  * Wireless statistics (used for /proc/net/wireless)
873  */
874 struct iw_statistics {
875 	__u16		status;		/* Status
876 					 * - device dependent for now */
877 
878 	struct iw_quality	qual;		/* Quality of the link
879 						 * (instant/mean/max) */
880 	struct iw_discarded	discard;	/* Packet discarded counts */
881 	struct iw_missed	miss;		/* Packet missed counts */
882 };
883 
884 /* ------------------------ IOCTL REQUEST ------------------------ */
885 /*
886  * This structure defines the payload of an ioctl, and is used
887  * below.
888  *
889  * Note that this structure should fit on the memory footprint
890  * of iwreq (which is the same as ifreq), which mean a max size of
891  * 16 octets = 128 bits. Warning, pointers might be 64 bits wide...
892  * You should check this when increasing the structures defined
893  * above in this file...
894  */
895 union iwreq_data {
896 	/* Config - generic */
897 	char		name[IFNAMSIZ];
898 	/* Name : used to verify the presence of  wireless extensions.
899 	 * Name of the protocol/provider... */
900 
901 	struct iw_point	essid;		/* Extended network name */
902 	struct iw_param	nwid;		/* network id (or domain - the cell) */
903 	struct iw_freq	freq;		/* frequency or channel :
904 					 * 0-1000 = channel
905 					 * > 1000 = frequency in Hz */
906 
907 	struct iw_param	sens;		/* signal level threshold */
908 	struct iw_param	bitrate;	/* default bit rate */
909 	struct iw_param	txpower;	/* default transmit power */
910 	struct iw_param	rts;		/* RTS threshold threshold */
911 	struct iw_param	frag;		/* Fragmentation threshold */
912 	__u32		mode;		/* Operation mode */
913 	struct iw_param	retry;		/* Retry limits & lifetime */
914 
915 	struct iw_point	encoding;	/* Encoding stuff : tokens */
916 	struct iw_param	power;		/* PM duration/timeout */
917 	struct iw_quality qual;		/* Quality part of statistics */
918 
919 	struct sockaddr	ap_addr;	/* Access point address */
920 	struct sockaddr	addr;		/* Destination address (hw/mac) */
921 
922 	struct iw_param	param;		/* Other small parameters */
923 	struct iw_point	data;		/* Other large parameters */
924 };
925 
926 /*
927  * The structure to exchange data for ioctl.
928  * This structure is the same as 'struct ifreq', but (re)defined for
929  * convenience...
930  * Do I need to remind you about structure size (32 octets) ?
931  */
932 struct iwreq {
933 	union
934 	{
935 		char	ifrn_name[IFNAMSIZ];	/* if name, e.g. "eth0" */
936 	} ifr_ifrn;
937 
938 	/* Data part (defined just above) */
939 	union iwreq_data	u;
940 };
941 
942 /* -------------------------- IOCTL DATA -------------------------- */
943 /*
944  *	For those ioctl which want to exchange mode data that what could
945  *	fit in the above structure...
946  */
947 
948 /*
949  *	Range of parameters
950  */
951 
952 struct iw_range {
953 	/* Informative stuff (to choose between different interface) */
954 	__u32		throughput;	/* To give an idea... */
955 	/* In theory this value should be the maximum benchmarked
956 	 * TCP/IP throughput, because with most of these devices the
957 	 * bit rate is meaningless (overhead an co) to estimate how
958 	 * fast the connection will go and pick the fastest one.
959 	 * I suggest people to play with Netperf or any benchmark...
960 	 */
961 
962 	/* NWID (or domain id) */
963 	__u32		min_nwid;	/* Minimal NWID we are able to set */
964 	__u32		max_nwid;	/* Maximal NWID we are able to set */
965 
966 	/* Old Frequency (backward compat - moved lower ) */
967 	__u16		old_num_channels;
968 	__u8		old_num_frequency;
969 
970 	/* Scan capabilities */
971 	__u8		scan_capa; 	/* IW_SCAN_CAPA_* bit field */
972 
973 	/* Wireless event capability bitmasks */
974 	__u32		event_capa[6];
975 
976 	/* signal level threshold range */
977 	__s32		sensitivity;
978 
979 	/* Quality of link & SNR stuff */
980 	/* Quality range (link, level, noise)
981 	 * If the quality is absolute, it will be in the range [0 ; max_qual],
982 	 * if the quality is dBm, it will be in the range [max_qual ; 0].
983 	 * Don't forget that we use 8 bit arithmetics... */
984 	struct iw_quality	max_qual;	/* Quality of the link */
985 	/* This should contain the average/typical values of the quality
986 	 * indicator. This should be the threshold between a "good" and
987 	 * a "bad" link (example : monitor going from green to orange).
988 	 * Currently, user space apps like quality monitors don't have any
989 	 * way to calibrate the measurement. With this, they can split
990 	 * the range between 0 and max_qual in different quality level
991 	 * (using a geometric subdivision centered on the average).
992 	 * I expect that people doing the user space apps will feedback
993 	 * us on which value we need to put in each driver... */
994 	struct iw_quality	avg_qual;	/* Quality of the link */
995 
996 	/* Rates */
997 	__u8		num_bitrates;	/* Number of entries in the list */
998 	__s32		bitrate[IW_MAX_BITRATES];	/* list, in bps */
999 
1000 	/* RTS threshold */
1001 	__s32		min_rts;	/* Minimal RTS threshold */
1002 	__s32		max_rts;	/* Maximal RTS threshold */
1003 
1004 	/* Frag threshold */
1005 	__s32		min_frag;	/* Minimal frag threshold */
1006 	__s32		max_frag;	/* Maximal frag threshold */
1007 
1008 	/* Power Management duration & timeout */
1009 	__s32		min_pmp;	/* Minimal PM period */
1010 	__s32		max_pmp;	/* Maximal PM period */
1011 	__s32		min_pmt;	/* Minimal PM timeout */
1012 	__s32		max_pmt;	/* Maximal PM timeout */
1013 	__u16		pmp_flags;	/* How to decode max/min PM period */
1014 	__u16		pmt_flags;	/* How to decode max/min PM timeout */
1015 	__u16		pm_capa;	/* What PM options are supported */
1016 
1017 	/* Encoder stuff */
1018 	__u16	encoding_size[IW_MAX_ENCODING_SIZES];	/* Different token sizes */
1019 	__u8	num_encoding_sizes;	/* Number of entry in the list */
1020 	__u8	max_encoding_tokens;	/* Max number of tokens */
1021 	/* For drivers that need a "login/passwd" form */
1022 	__u8	encoding_login_index;	/* token index for login token */
1023 
1024 	/* Transmit power */
1025 	__u16		txpower_capa;	/* What options are supported */
1026 	__u8		num_txpower;	/* Number of entries in the list */
1027 	__s32		txpower[IW_MAX_TXPOWER];	/* list, in bps */
1028 
1029 	/* Wireless Extension version info */
1030 	__u8		we_version_compiled;	/* Must be WIRELESS_EXT */
1031 	__u8		we_version_source;	/* Last update of source */
1032 
1033 	/* Retry limits and lifetime */
1034 	__u16		retry_capa;	/* What retry options are supported */
1035 	__u16		retry_flags;	/* How to decode max/min retry limit */
1036 	__u16		r_time_flags;	/* How to decode max/min retry life */
1037 	__s32		min_retry;	/* Minimal number of retries */
1038 	__s32		max_retry;	/* Maximal number of retries */
1039 	__s32		min_r_time;	/* Minimal retry lifetime */
1040 	__s32		max_r_time;	/* Maximal retry lifetime */
1041 
1042 	/* Frequency */
1043 	__u16		num_channels;	/* Number of channels [0; num - 1] */
1044 	__u8		num_frequency;	/* Number of entry in the list */
1045 	struct iw_freq	freq[IW_MAX_FREQUENCIES];	/* list */
1046 	/* Note : this frequency list doesn't need to fit channel numbers,
1047 	 * because each entry contain its channel index */
1048 
1049 	__u32		enc_capa;	/* IW_ENC_CAPA_* bit field */
1050 };
1051 
1052 /*
1053  * Private ioctl interface information
1054  */
1055 
1056 struct iw_priv_args {
1057 	__u32		cmd;		/* Number of the ioctl to issue */
1058 	__u16		set_args;	/* Type and number of args */
1059 	__u16		get_args;	/* Type and number of args */
1060 	char		name[IFNAMSIZ];	/* Name of the extension */
1061 };
1062 
1063 /* ----------------------- WIRELESS EVENTS ----------------------- */
1064 /*
1065  * Wireless events are carried through the rtnetlink socket to user
1066  * space. They are encapsulated in the IFLA_WIRELESS field of
1067  * a RTM_NEWLINK message.
1068  */
1069 
1070 /*
1071  * A Wireless Event. Contains basically the same data as the ioctl...
1072  */
1073 struct iw_event {
1074 	__u16		len;			/* Real length of this stuff */
1075 	__u16		cmd;			/* Wireless IOCTL */
1076 	union iwreq_data	u;		/* IOCTL fixed payload */
1077 };
1078 
1079 /* Size of the Event prefix (including padding and alignement junk) */
1080 #define IW_EV_LCP_LEN	(sizeof(struct iw_event) - sizeof(union iwreq_data))
1081 /* Size of the various events */
1082 #define IW_EV_CHAR_LEN	(IW_EV_LCP_LEN + IFNAMSIZ)
1083 #define IW_EV_UINT_LEN	(IW_EV_LCP_LEN + sizeof(__u32))
1084 #define IW_EV_FREQ_LEN	(IW_EV_LCP_LEN + sizeof(struct iw_freq))
1085 #define IW_EV_PARAM_LEN	(IW_EV_LCP_LEN + sizeof(struct iw_param))
1086 #define IW_EV_ADDR_LEN	(IW_EV_LCP_LEN + sizeof(struct sockaddr))
1087 #define IW_EV_QUAL_LEN	(IW_EV_LCP_LEN + sizeof(struct iw_quality))
1088 
1089 /* iw_point events are special. First, the payload (extra data) come at
1090  * the end of the event, so they are bigger than IW_EV_POINT_LEN. Second,
1091  * we omit the pointer, so start at an offset. */
1092 #define IW_EV_POINT_OFF (((char *) &(((struct iw_point *) NULL)->length)) - \
1093 			  (char *) NULL)
1094 #define IW_EV_POINT_LEN	(IW_EV_LCP_LEN + sizeof(struct iw_point) - \
1095 			 IW_EV_POINT_OFF)
1096 
1097 
1098 /* Size of the Event prefix when packed in stream */
1099 #define IW_EV_LCP_PK_LEN	(4)
1100 /* Size of the various events when packed in stream */
1101 #define IW_EV_CHAR_PK_LEN	(IW_EV_LCP_PK_LEN + IFNAMSIZ)
1102 #define IW_EV_UINT_PK_LEN	(IW_EV_LCP_PK_LEN + sizeof(__u32))
1103 #define IW_EV_FREQ_PK_LEN	(IW_EV_LCP_PK_LEN + sizeof(struct iw_freq))
1104 #define IW_EV_PARAM_PK_LEN	(IW_EV_LCP_PK_LEN + sizeof(struct iw_param))
1105 #define IW_EV_ADDR_PK_LEN	(IW_EV_LCP_PK_LEN + sizeof(struct sockaddr))
1106 #define IW_EV_QUAL_PK_LEN	(IW_EV_LCP_PK_LEN + sizeof(struct iw_quality))
1107 #define IW_EV_POINT_PK_LEN	(IW_EV_LCP_PK_LEN + 4)
1108 
1109 #endif /* _UAPI_LINUX_WIRELESS_H */
1110