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TOMOYO Linux Cross Reference
Linux/include/uapi/linux/wireless.h

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

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