2 * This file define a set of standard wireless extensions
6 * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com>
7 * Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved.
10 #ifndef _LINUX_WIRELESS_H
11 #define _LINUX_WIRELESS_H
13 /************************** DOCUMENTATION **************************/
15 * Initial APIs (1996 -> onward) :
16 * -----------------------------
17 * Basically, the wireless extensions are for now a set of standard ioctl
18 * call + /proc/net/wireless
20 * The entry /proc/net/wireless give statistics and information on the
22 * This is better than having each driver having its entry because
23 * its centralised and we may remove the driver module safely.
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.
29 * The ioctl mechanimsm are copied from standard devices ioctl.
30 * We have the list of command plus a structure descibing the
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)
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)
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
49 * Note as well that /proc/net/wireless implementation has now moved in :
50 * # net/core/wireless.c
52 * Wireless Events (2002 -> onward) :
53 * --------------------------------
54 * Events are defined at the end of this file, and implemented in :
55 * # net/core/wireless.c
59 * Do not add here things that are redundant with other mechanisms
60 * (drivers init, ifconfig, /proc/net/dev, ...) and with are not
63 * These wireless extensions are not magic : each driver has to provide
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...
70 /***************************** INCLUDES *****************************/
72 /* This header is used in user-space, therefore need to be sanitised
73 * for that purpose. Those includes are usually not compatible with glibc.
74 * To know which includes to use in user-space, check iwlib.h. */
76 #include <linux/types.h> /* for "caddr_t" et al */
77 #include <linux/socket.h> /* for "struct sockaddr" et al */
78 #include <linux/if.h> /* for IFNAMSIZ and co... */
79 #endif /* __KERNEL__ */
81 /***************************** VERSION *****************************/
83 * This constant is used to know the availability of the wireless
84 * extensions and to know which version of wireless extensions it is
85 * (there is some stuff that will be added in the future...)
86 * I just plan to increment with each new version.
88 #define WIRELESS_EXT 22
95 * Alan Cox start some incompatibles changes. I've integrated a bit more.
96 * - Encryption renamed to Encode to avoid US regulation problems
97 * - Frequency changed from float to struct to avoid problems on old 386
105 * - Missing encoding definitions in range
106 * - Access points stuff
110 * - 802.11 support (ESSID ioctls)
114 * - define IW_ESSID_MAX_SIZE and IW_MAX_AP
118 * - Changed my e-mail address
119 * - More 802.11 support (nickname, rate, rts, frag)
120 * - List index in frequencies
124 * - Support for 'mode of operation' (ad-hoc, managed...)
125 * - Support for unicast and multicast power saving
126 * - Change encoding to support larger tokens (>64 bits)
127 * - Updated iw_params (disable, flags) and use it for NWID
128 * - Extracted iw_point from iwreq for clarity
132 * - Add PM capability to range structure
133 * - Add PM modifier : MAX/MIN/RELATIVE
134 * - Add encoding option : IW_ENCODE_NOKEY
135 * - Add TxPower ioctls (work like TxRate)
139 * - Add WE version in range (help backward/forward compatibility)
140 * - Add retry ioctls (work like PM)
144 * - Add SIOCSIWSTATS to get /proc/net/wireless programatically
145 * - Add DEV PRIVATE IOCTL to avoid collisions in SIOCDEVPRIVATE space
146 * - Add new statistics (frag, retry, beacon)
147 * - Add average quality (for user space calibration)
151 * - Document creation of new driver API.
152 * - Extract union iwreq_data from struct iwreq (for new driver API).
153 * - Rename SIOCSIWNAME as SIOCSIWCOMMIT
157 * - Wireless Events support : define struct iw_event
158 * - Define additional specific event numbers
159 * - Add "addr" and "param" fields in union iwreq_data
160 * - AP scanning stuff (SIOCSIWSCAN and friends)
164 * - Add IW_PRIV_TYPE_ADDR for struct sockaddr private arg
165 * - Make struct iw_freq signed (both m & e), add explicit padding
166 * - Add IWEVCUSTOM for driver specific event/scanning token
167 * - Add IW_MAX_GET_SPY for driver returning a lot of addresses
168 * - Add IW_TXPOW_RANGE for range of Tx Powers
169 * - Add IWEVREGISTERED & IWEVEXPIRED events for Access Points
170 * - Add IW_MODE_MONITOR for passive monitor
174 * - Increase the number of bitrates in iw_range to 32 (for 802.11g)
175 * - Increase the number of frequencies in iw_range to 32 (for 802.11b+a)
176 * - Reshuffle struct iw_range for increases, add filler
177 * - Increase IW_MAX_AP to 64 for driver returning a lot of addresses
178 * - Remove IW_MAX_GET_SPY because conflict with enhanced spy support
179 * - Add SIOCSIWTHRSPY/SIOCGIWTHRSPY and "struct iw_thrspy"
180 * - Add IW_ENCODE_TEMP and iw_range->encoding_login_index
184 * - Add flags to frequency -> auto/fixed
185 * - Document (struct iw_quality *)->updated, add new flags (INVALID)
186 * - Wireless Event capability in struct iw_range
187 * - Add support for relative TxPower (yick !)
189 * V17 to V18 (From Jouni Malinen <jkmaline@cc.hut.fi>)
191 * - Add support for WPA/WPA2
192 * - Add extended encoding configuration (SIOCSIWENCODEEXT and
194 * - Add SIOCSIWGENIE/SIOCGIWGENIE
197 * - Add struct iw_range bit field for supported encoding capabilities
198 * - Add optional scan request parameters for SIOCSIWSCAN
199 * - Add SIOCSIWAUTH/SIOCGIWAUTH for setting authentication and WPA
200 * related parameters (extensible up to 4096 parameter values)
201 * - Add wireless events: IWEVGENIE, IWEVMICHAELMICFAILURE,
202 * IWEVASSOCREQIE, IWEVASSOCRESPIE, IWEVPMKIDCAND
206 * - Remove (struct iw_point *)->pointer from events and streams
207 * - Remove header includes to help user space
208 * - Increase IW_ENCODING_TOKEN_MAX from 32 to 64
209 * - Add IW_QUAL_ALL_UPDATED and IW_QUAL_ALL_INVALID macros
210 * - Add explicit flag to tell stats are in dBm : IW_QUAL_DBM
211 * - Add IW_IOCTL_IDX() and IW_EVENT_IDX() macros
215 * - RtNetlink requests support (SET/GET)
219 * - Remove (struct net_device *)->get_wireless_stats()
220 * - Change length in ESSID and NICK to strlen() instead of strlen()+1
221 * - Add IW_RETRY_SHORT/IW_RETRY_LONG retry modifiers
222 * - Power/Retry relative values no longer * 100000
223 * - Add explicit flag to tell stats are in 802.11k RCPI : IW_QUAL_RCPI
227 * - Prevent leaking of kernel space in stream on 64 bits.
230 /**************************** CONSTANTS ****************************/
232 /* -------------------------- IOCTL LIST -------------------------- */
234 /* Wireless Identification */
235 #define SIOCSIWCOMMIT 0x8B00 /* Commit pending changes to driver */
236 #define SIOCGIWNAME 0x8B01 /* get name == wireless protocol */
237 /* SIOCGIWNAME is used to verify the presence of Wireless Extensions.
238 * Common values : "IEEE 802.11-DS", "IEEE 802.11-FH", "IEEE 802.11b"...
239 * Don't put the name of your driver there, it's useless. */
241 /* Basic operations */
242 #define SIOCSIWNWID 0x8B02 /* set network id (pre-802.11) */
243 #define SIOCGIWNWID 0x8B03 /* get network id (the cell) */
244 #define SIOCSIWFREQ 0x8B04 /* set channel/frequency (Hz) */
245 #define SIOCGIWFREQ 0x8B05 /* get channel/frequency (Hz) */
246 #define SIOCSIWMODE 0x8B06 /* set operation mode */
247 #define SIOCGIWMODE 0x8B07 /* get operation mode */
248 #define SIOCSIWSENS 0x8B08 /* set sensitivity (dBm) */
249 #define SIOCGIWSENS 0x8B09 /* get sensitivity (dBm) */
251 /* Informative stuff */
252 #define SIOCSIWRANGE 0x8B0A /* Unused */
253 #define SIOCGIWRANGE 0x8B0B /* Get range of parameters */
254 #define SIOCSIWPRIV 0x8B0C /* Unused */
255 #define SIOCGIWPRIV 0x8B0D /* get private ioctl interface info */
256 #define SIOCSIWSTATS 0x8B0E /* Unused */
257 #define SIOCGIWSTATS 0x8B0F /* Get /proc/net/wireless stats */
258 /* SIOCGIWSTATS is strictly used between user space and the kernel, and
259 * is never passed to the driver (i.e. the driver will never see it). */
261 /* Spy support (statistics per MAC address - used for Mobile IP support) */
262 #define SIOCSIWSPY 0x8B10 /* set spy addresses */
263 #define SIOCGIWSPY 0x8B11 /* get spy info (quality of link) */
264 #define SIOCSIWTHRSPY 0x8B12 /* set spy threshold (spy event) */
265 #define SIOCGIWTHRSPY 0x8B13 /* get spy threshold */
267 /* Access Point manipulation */
268 #define SIOCSIWAP 0x8B14 /* set access point MAC addresses */
269 #define SIOCGIWAP 0x8B15 /* get access point MAC addresses */
270 #define SIOCGIWAPLIST 0x8B17 /* Deprecated in favor of scanning */
271 #define SIOCSIWSCAN 0x8B18 /* trigger scanning (list cells) */
272 #define SIOCGIWSCAN 0x8B19 /* get scanning results */
274 /* 802.11 specific support */
275 #define SIOCSIWESSID 0x8B1A /* set ESSID (network name) */
276 #define SIOCGIWESSID 0x8B1B /* get ESSID */
277 #define SIOCSIWNICKN 0x8B1C /* set node name/nickname */
278 #define SIOCGIWNICKN 0x8B1D /* get node name/nickname */
279 /* As the ESSID and NICKN are strings up to 32 bytes long, it doesn't fit
280 * within the 'iwreq' structure, so we need to use the 'data' member to
281 * point to a string in user space, like it is done for RANGE... */
283 /* Other parameters useful in 802.11 and some other devices */
284 #define SIOCSIWRATE 0x8B20 /* set default bit rate (bps) */
285 #define SIOCGIWRATE 0x8B21 /* get default bit rate (bps) */
286 #define SIOCSIWRTS 0x8B22 /* set RTS/CTS threshold (bytes) */
287 #define SIOCGIWRTS 0x8B23 /* get RTS/CTS threshold (bytes) */
288 #define SIOCSIWFRAG 0x8B24 /* set fragmentation thr (bytes) */
289 #define SIOCGIWFRAG 0x8B25 /* get fragmentation thr (bytes) */
290 #define SIOCSIWTXPOW 0x8B26 /* set transmit power (dBm) */
291 #define SIOCGIWTXPOW 0x8B27 /* get transmit power (dBm) */
292 #define SIOCSIWRETRY 0x8B28 /* set retry limits and lifetime */
293 #define SIOCGIWRETRY 0x8B29 /* get retry limits and lifetime */
295 /* Encoding stuff (scrambling, hardware security, WEP...) */
296 #define SIOCSIWENCODE 0x8B2A /* set encoding token & mode */
297 #define SIOCGIWENCODE 0x8B2B /* get encoding token & mode */
298 /* Power saving stuff (power management, unicast and multicast) */
299 #define SIOCSIWPOWER 0x8B2C /* set Power Management settings */
300 #define SIOCGIWPOWER 0x8B2D /* get Power Management settings */
301 /* Modulation bitmask */
302 #define SIOCSIWMODUL 0x8B2E /* set Modulations settings */
303 #define SIOCGIWMODUL 0x8B2F /* get Modulations settings */
305 /* WPA : Generic IEEE 802.11 informatiom element (e.g., for WPA/RSN/WMM).
306 * This ioctl uses struct iw_point and data buffer that includes IE id and len
307 * fields. More than one IE may be included in the request. Setting the generic
308 * IE to empty buffer (len=0) removes the generic IE from the driver. Drivers
309 * are allowed to generate their own WPA/RSN IEs, but in these cases, drivers
310 * are required to report the used IE as a wireless event, e.g., when
311 * associating with an AP. */
312 #define SIOCSIWGENIE 0x8B30 /* set generic IE */
313 #define SIOCGIWGENIE 0x8B31 /* get generic IE */
315 /* WPA : IEEE 802.11 MLME requests */
316 #define SIOCSIWMLME 0x8B16 /* request MLME operation; uses
318 /* WPA : Authentication mode parameters */
319 #define SIOCSIWAUTH 0x8B32 /* set authentication mode params */
320 #define SIOCGIWAUTH 0x8B33 /* get authentication mode params */
322 /* WPA : Extended version of encoding configuration */
323 #define SIOCSIWENCODEEXT 0x8B34 /* set encoding token & mode */
324 #define SIOCGIWENCODEEXT 0x8B35 /* get encoding token & mode */
326 /* WPA2 : PMKSA cache management */
327 #define SIOCSIWPMKSA 0x8B36 /* PMKSA cache operation */
329 /* -------------------- DEV PRIVATE IOCTL LIST -------------------- */
331 /* These 32 ioctl are wireless device private, for 16 commands.
332 * Each driver is free to use them for whatever purpose it chooses,
333 * however the driver *must* export the description of those ioctls
334 * with SIOCGIWPRIV and *must* use arguments as defined below.
335 * If you don't follow those rules, DaveM is going to hate you (reason :
336 * it make mixed 32/64bit operation impossible).
338 #define SIOCIWFIRSTPRIV 0x8BE0
339 #define SIOCIWLASTPRIV 0x8BFF
340 /* Previously, we were using SIOCDEVPRIVATE, but we now have our
341 * separate range because of collisions with other tools such as
343 * We now have 32 commands, so a bit more space ;-).
344 * Also, all 'even' commands are only usable by root and don't return the
345 * content of ifr/iwr to user (but you are not obliged to use the set/get
346 * convention, just use every other two command). More details in iwpriv.c.
347 * And I repeat : you are not forced to use them with iwpriv, but you
348 * must be compliant with it.
351 /* ------------------------- IOCTL STUFF ------------------------- */
353 /* The first and the last (range) */
354 #define SIOCIWFIRST 0x8B00
355 #define SIOCIWLAST SIOCIWLASTPRIV /* 0x8BFF */
356 #define IW_IOCTL_IDX(cmd) ((cmd) - SIOCIWFIRST)
358 /* Odd : get (world access), even : set (root access) */
359 #define IW_IS_SET(cmd) (!((cmd) & 0x1))
360 #define IW_IS_GET(cmd) ((cmd) & 0x1)
362 /* ----------------------- WIRELESS EVENTS ----------------------- */
363 /* Those are *NOT* ioctls, do not issue request on them !!! */
364 /* Most events use the same identifier as ioctl requests */
366 #define IWEVTXDROP 0x8C00 /* Packet dropped to excessive retry */
367 #define IWEVQUAL 0x8C01 /* Quality part of statistics (scan) */
368 #define IWEVCUSTOM 0x8C02 /* Driver specific ascii string */
369 #define IWEVREGISTERED 0x8C03 /* Discovered a new node (AP mode) */
370 #define IWEVEXPIRED 0x8C04 /* Expired a node (AP mode) */
371 #define IWEVGENIE 0x8C05 /* Generic IE (WPA, RSN, WMM, ..)
372 * (scan results); This includes id and
373 * length fields. One IWEVGENIE may
374 * contain more than one IE. Scan
375 * results may contain one or more
376 * IWEVGENIE events. */
377 #define IWEVMICHAELMICFAILURE 0x8C06 /* Michael MIC failure
378 * (struct iw_michaelmicfailure)
380 #define IWEVASSOCREQIE 0x8C07 /* IEs used in (Re)Association Request.
381 * The data includes id and length
382 * fields and may contain more than one
383 * IE. This event is required in
384 * Managed mode if the driver
385 * generates its own WPA/RSN IE. This
386 * should be sent just before
387 * IWEVREGISTERED event for the
389 #define IWEVASSOCRESPIE 0x8C08 /* IEs used in (Re)Association
390 * Response. The data includes id and
391 * length fields and may contain more
392 * than one IE. This may be sent
393 * between IWEVASSOCREQIE and
394 * IWEVREGISTERED events for the
396 #define IWEVPMKIDCAND 0x8C09 /* PMKID candidate for RSN
398 * (struct iw_pmkid_cand) */
400 #define IWEVFIRST 0x8C00
401 #define IW_EVENT_IDX(cmd) ((cmd) - IWEVFIRST)
403 /* ------------------------- PRIVATE INFO ------------------------- */
405 * The following is used with SIOCGIWPRIV. It allow a driver to define
406 * the interface (name, type of data) for its private ioctl.
407 * Privates ioctl are SIOCIWFIRSTPRIV -> SIOCIWLASTPRIV
410 #define IW_PRIV_TYPE_MASK 0x7000 /* Type of arguments */
411 #define IW_PRIV_TYPE_NONE 0x0000
412 #define IW_PRIV_TYPE_BYTE 0x1000 /* Char as number */
413 #define IW_PRIV_TYPE_CHAR 0x2000 /* Char as character */
414 #define IW_PRIV_TYPE_INT 0x4000 /* 32 bits int */
415 #define IW_PRIV_TYPE_FLOAT 0x5000 /* struct iw_freq */
416 #define IW_PRIV_TYPE_ADDR 0x6000 /* struct sockaddr */
418 #define IW_PRIV_SIZE_FIXED 0x0800 /* Variable or fixed number of args */
420 #define IW_PRIV_SIZE_MASK 0x07FF /* Max number of those args */
423 * Note : if the number of args is fixed and the size < 16 octets,
424 * instead of passing a pointer we will put args in the iwreq struct...
427 /* ----------------------- OTHER CONSTANTS ----------------------- */
429 /* Maximum frequencies in the range struct */
430 #define IW_MAX_FREQUENCIES 32
431 /* Note : if you have something like 80 frequencies,
432 * don't increase this constant and don't fill the frequency list.
433 * The user will be able to set by channel anyway... */
435 /* Maximum bit rates in the range struct */
436 #define IW_MAX_BITRATES 32
438 /* Maximum tx powers in the range struct */
439 #define IW_MAX_TXPOWER 8
440 /* Note : if you more than 8 TXPowers, just set the max and min or
441 * a few of them in the struct iw_range. */
443 /* Maximum of address that you may set with SPY */
446 /* Maximum of address that you may get in the
447 list of access points in range */
450 /* Maximum size of the ESSID and NICKN strings */
451 #define IW_ESSID_MAX_SIZE 32
453 /* Modes of operation */
454 #define IW_MODE_AUTO 0 /* Let the driver decides */
455 #define IW_MODE_ADHOC 1 /* Single cell network */
456 #define IW_MODE_INFRA 2 /* Multi cell network, roaming, ... */
457 #define IW_MODE_MASTER 3 /* Synchronisation master or Access Point */
458 #define IW_MODE_REPEAT 4 /* Wireless Repeater (forwarder) */
459 #define IW_MODE_SECOND 5 /* Secondary master/repeater (backup) */
460 #define IW_MODE_MONITOR 6 /* Passive monitor (listen only) */
462 /* Statistics flags (bitmask in updated) */
463 #define IW_QUAL_QUAL_UPDATED 0x01 /* Value was updated since last read */
464 #define IW_QUAL_LEVEL_UPDATED 0x02
465 #define IW_QUAL_NOISE_UPDATED 0x04
466 #define IW_QUAL_ALL_UPDATED 0x07
467 #define IW_QUAL_DBM 0x08 /* Level + Noise are dBm */
468 #define IW_QUAL_QUAL_INVALID 0x10 /* Driver doesn't provide value */
469 #define IW_QUAL_LEVEL_INVALID 0x20
470 #define IW_QUAL_NOISE_INVALID 0x40
471 #define IW_QUAL_RCPI 0x80 /* Level + Noise are 802.11k RCPI */
472 #define IW_QUAL_ALL_INVALID 0x70
474 /* Frequency flags */
475 #define IW_FREQ_AUTO 0x00 /* Let the driver decides */
476 #define IW_FREQ_FIXED 0x01 /* Force a specific value */
478 /* Maximum number of size of encoding token available
479 * they are listed in the range structure */
480 #define IW_MAX_ENCODING_SIZES 8
482 /* Maximum size of the encoding token in bytes */
483 #define IW_ENCODING_TOKEN_MAX 64 /* 512 bits (for now) */
485 /* Flags for encoding (along with the token) */
486 #define IW_ENCODE_INDEX 0x00FF /* Token index (if needed) */
487 #define IW_ENCODE_FLAGS 0xFF00 /* Flags defined below */
488 #define IW_ENCODE_MODE 0xF000 /* Modes defined below */
489 #define IW_ENCODE_DISABLED 0x8000 /* Encoding disabled */
490 #define IW_ENCODE_ENABLED 0x0000 /* Encoding enabled */
491 #define IW_ENCODE_RESTRICTED 0x4000 /* Refuse non-encoded packets */
492 #define IW_ENCODE_OPEN 0x2000 /* Accept non-encoded packets */
493 #define IW_ENCODE_NOKEY 0x0800 /* Key is write only, so not present */
494 #define IW_ENCODE_TEMP 0x0400 /* Temporary key */
496 /* Power management flags available (along with the value, if any) */
497 #define IW_POWER_ON 0x0000 /* No details... */
498 #define IW_POWER_TYPE 0xF000 /* Type of parameter */
499 #define IW_POWER_PERIOD 0x1000 /* Value is a period/duration of */
500 #define IW_POWER_TIMEOUT 0x2000 /* Value is a timeout (to go asleep) */
501 #define IW_POWER_SAVING 0x4000 /* Value is relative (how aggressive)*/
502 #define IW_POWER_MODE 0x0F00 /* Power Management mode */
503 #define IW_POWER_UNICAST_R 0x0100 /* Receive only unicast messages */
504 #define IW_POWER_MULTICAST_R 0x0200 /* Receive only multicast messages */
505 #define IW_POWER_ALL_R 0x0300 /* Receive all messages though PM */
506 #define IW_POWER_FORCE_S 0x0400 /* Force PM procedure for sending unicast */
507 #define IW_POWER_REPEATER 0x0800 /* Repeat broadcast messages in PM period */
508 #define IW_POWER_MODIFIER 0x000F /* Modify a parameter */
509 #define IW_POWER_MIN 0x0001 /* Value is a minimum */
510 #define IW_POWER_MAX 0x0002 /* Value is a maximum */
511 #define IW_POWER_RELATIVE 0x0004 /* Value is not in seconds/ms/us */
513 /* Transmit Power flags available */
514 #define IW_TXPOW_TYPE 0x00FF /* Type of value */
515 #define IW_TXPOW_DBM 0x0000 /* Value is in dBm */
516 #define IW_TXPOW_MWATT 0x0001 /* Value is in mW */
517 #define IW_TXPOW_RELATIVE 0x0002 /* Value is in arbitrary units */
518 #define IW_TXPOW_RANGE 0x1000 /* Range of value between min/max */
520 /* Retry limits and lifetime flags available */
521 #define IW_RETRY_ON 0x0000 /* No details... */
522 #define IW_RETRY_TYPE 0xF000 /* Type of parameter */
523 #define IW_RETRY_LIMIT 0x1000 /* Maximum number of retries*/
524 #define IW_RETRY_LIFETIME 0x2000 /* Maximum duration of retries in us */
525 #define IW_RETRY_MODIFIER 0x00FF /* Modify a parameter */
526 #define IW_RETRY_MIN 0x0001 /* Value is a minimum */
527 #define IW_RETRY_MAX 0x0002 /* Value is a maximum */
528 #define IW_RETRY_RELATIVE 0x0004 /* Value is not in seconds/ms/us */
529 #define IW_RETRY_SHORT 0x0010 /* Value is for short packets */
530 #define IW_RETRY_LONG 0x0020 /* Value is for long packets */
532 /* Scanning request flags */
533 #define IW_SCAN_DEFAULT 0x0000 /* Default scan of the driver */
534 #define IW_SCAN_ALL_ESSID 0x0001 /* Scan all ESSIDs */
535 #define IW_SCAN_THIS_ESSID 0x0002 /* Scan only this ESSID */
536 #define IW_SCAN_ALL_FREQ 0x0004 /* Scan all Frequencies */
537 #define IW_SCAN_THIS_FREQ 0x0008 /* Scan only this Frequency */
538 #define IW_SCAN_ALL_MODE 0x0010 /* Scan all Modes */
539 #define IW_SCAN_THIS_MODE 0x0020 /* Scan only this Mode */
540 #define IW_SCAN_ALL_RATE 0x0040 /* Scan all Bit-Rates */
541 #define IW_SCAN_THIS_RATE 0x0080 /* Scan only this Bit-Rate */
542 /* struct iw_scan_req scan_type */
543 #define IW_SCAN_TYPE_ACTIVE 0
544 #define IW_SCAN_TYPE_PASSIVE 1
545 /* Maximum size of returned data */
546 #define IW_SCAN_MAX_DATA 4096 /* In bytes */
548 /* Max number of char in custom event - use multiple of them if needed */
549 #define IW_CUSTOM_MAX 256 /* In bytes */
551 /* Generic information element */
552 #define IW_GENERIC_IE_MAX 1024
554 /* MLME requests (SIOCSIWMLME / struct iw_mlme) */
555 #define IW_MLME_DEAUTH 0
556 #define IW_MLME_DISASSOC 1
557 #define IW_MLME_AUTH 2
558 #define IW_MLME_ASSOC 3
560 /* SIOCSIWAUTH/SIOCGIWAUTH struct iw_param flags */
561 #define IW_AUTH_INDEX 0x0FFF
562 #define IW_AUTH_FLAGS 0xF000
563 /* SIOCSIWAUTH/SIOCGIWAUTH parameters (0 .. 4095)
564 * (IW_AUTH_INDEX mask in struct iw_param flags; this is the index of the
565 * parameter that is being set/get to; value will be read/written to
566 * struct iw_param value field) */
567 #define IW_AUTH_WPA_VERSION 0
568 #define IW_AUTH_CIPHER_PAIRWISE 1
569 #define IW_AUTH_CIPHER_GROUP 2
570 #define IW_AUTH_KEY_MGMT 3
571 #define IW_AUTH_TKIP_COUNTERMEASURES 4
572 #define IW_AUTH_DROP_UNENCRYPTED 5
573 #define IW_AUTH_80211_AUTH_ALG 6
574 #define IW_AUTH_WPA_ENABLED 7
575 #define IW_AUTH_RX_UNENCRYPTED_EAPOL 8
576 #define IW_AUTH_ROAMING_CONTROL 9
577 #define IW_AUTH_PRIVACY_INVOKED 10
579 /* IW_AUTH_WPA_VERSION values (bit field) */
580 #define IW_AUTH_WPA_VERSION_DISABLED 0x00000001
581 #define IW_AUTH_WPA_VERSION_WPA 0x00000002
582 #define IW_AUTH_WPA_VERSION_WPA2 0x00000004
584 /* IW_AUTH_PAIRWISE_CIPHER and IW_AUTH_GROUP_CIPHER values (bit field) */
585 #define IW_AUTH_CIPHER_NONE 0x00000001
586 #define IW_AUTH_CIPHER_WEP40 0x00000002
587 #define IW_AUTH_CIPHER_TKIP 0x00000004
588 #define IW_AUTH_CIPHER_CCMP 0x00000008
589 #define IW_AUTH_CIPHER_WEP104 0x00000010
591 /* IW_AUTH_KEY_MGMT values (bit field) */
592 #define IW_AUTH_KEY_MGMT_802_1X 1
593 #define IW_AUTH_KEY_MGMT_PSK 2
595 /* IW_AUTH_80211_AUTH_ALG values (bit field) */
596 #define IW_AUTH_ALG_OPEN_SYSTEM 0x00000001
597 #define IW_AUTH_ALG_SHARED_KEY 0x00000002
598 #define IW_AUTH_ALG_LEAP 0x00000004
600 /* IW_AUTH_ROAMING_CONTROL values */
601 #define IW_AUTH_ROAMING_ENABLE 0 /* driver/firmware based roaming */
602 #define IW_AUTH_ROAMING_DISABLE 1 /* user space program used for roaming
605 /* SIOCSIWENCODEEXT definitions */
606 #define IW_ENCODE_SEQ_MAX_SIZE 8
607 /* struct iw_encode_ext ->alg */
608 #define IW_ENCODE_ALG_NONE 0
609 #define IW_ENCODE_ALG_WEP 1
610 #define IW_ENCODE_ALG_TKIP 2
611 #define IW_ENCODE_ALG_CCMP 3
612 /* struct iw_encode_ext ->ext_flags */
613 #define IW_ENCODE_EXT_TX_SEQ_VALID 0x00000001
614 #define IW_ENCODE_EXT_RX_SEQ_VALID 0x00000002
615 #define IW_ENCODE_EXT_GROUP_KEY 0x00000004
616 #define IW_ENCODE_EXT_SET_TX_KEY 0x00000008
618 /* IWEVMICHAELMICFAILURE : struct iw_michaelmicfailure ->flags */
619 #define IW_MICFAILURE_KEY_ID 0x00000003 /* Key ID 0..3 */
620 #define IW_MICFAILURE_GROUP 0x00000004
621 #define IW_MICFAILURE_PAIRWISE 0x00000008
622 #define IW_MICFAILURE_STAKEY 0x00000010
623 #define IW_MICFAILURE_COUNT 0x00000060 /* 1 or 2 (0 = count not supported)
626 /* Bit field values for enc_capa in struct iw_range */
627 #define IW_ENC_CAPA_WPA 0x00000001
628 #define IW_ENC_CAPA_WPA2 0x00000002
629 #define IW_ENC_CAPA_CIPHER_TKIP 0x00000004
630 #define IW_ENC_CAPA_CIPHER_CCMP 0x00000008
632 /* Event capability macros - in (struct iw_range *)->event_capa
633 * Because we have more than 32 possible events, we use an array of
634 * 32 bit bitmasks. Note : 32 bits = 0x20 = 2^5. */
635 #define IW_EVENT_CAPA_BASE(cmd) ((cmd >= SIOCIWFIRSTPRIV) ? \
636 (cmd - SIOCIWFIRSTPRIV + 0x60) : \
637 (cmd - SIOCSIWCOMMIT))
638 #define IW_EVENT_CAPA_INDEX(cmd) (IW_EVENT_CAPA_BASE(cmd) >> 5)
639 #define IW_EVENT_CAPA_MASK(cmd) (1 << (IW_EVENT_CAPA_BASE(cmd) & 0x1F))
640 /* Event capability constants - event autogenerated by the kernel
641 * This list is valid for most 802.11 devices, customise as needed... */
642 #define IW_EVENT_CAPA_K_0 (IW_EVENT_CAPA_MASK(0x8B04) | \
643 IW_EVENT_CAPA_MASK(0x8B06) | \
644 IW_EVENT_CAPA_MASK(0x8B1A))
645 #define IW_EVENT_CAPA_K_1 (IW_EVENT_CAPA_MASK(0x8B2A))
646 /* "Easy" macro to set events in iw_range (less efficient) */
647 #define IW_EVENT_CAPA_SET(event_capa, cmd) (event_capa[IW_EVENT_CAPA_INDEX(cmd)] |= IW_EVENT_CAPA_MASK(cmd))
648 #define IW_EVENT_CAPA_SET_KERNEL(event_capa) {event_capa[0] |= IW_EVENT_CAPA_K_0; event_capa[1] |= IW_EVENT_CAPA_K_1; }
650 /* Modulations bitmasks */
651 #define IW_MODUL_ALL 0x00000000 /* Everything supported */
652 #define IW_MODUL_FH 0x00000001 /* Frequency Hopping */
653 #define IW_MODUL_DS 0x00000002 /* Original Direct Sequence */
654 #define IW_MODUL_CCK 0x00000004 /* 802.11b : 5.5 + 11 Mb/s */
655 #define IW_MODUL_11B (IW_MODUL_DS | IW_MODUL_CCK)
656 #define IW_MODUL_PBCC 0x00000008 /* TI : 5.5 + 11 + 22 Mb/s */
657 #define IW_MODUL_OFDM_A 0x00000010 /* 802.11a : 54 Mb/s */
658 #define IW_MODUL_11A (IW_MODUL_OFDM_A)
659 #define IW_MODUL_11AB (IW_MODUL_11B | IW_MODUL_11A)
660 #define IW_MODUL_OFDM_G 0x00000020 /* 802.11g : 54 Mb/s */
661 #define IW_MODUL_11G (IW_MODUL_11B | IW_MODUL_OFDM_G)
662 #define IW_MODUL_11AG (IW_MODUL_11G | IW_MODUL_11A)
663 #define IW_MODUL_TURBO 0x00000040 /* ATH : bonding, 108 Mb/s */
664 /* In here we should define MIMO stuff. Later... */
665 #define IW_MODUL_CUSTOM 0x40000000 /* Driver specific */
667 /* Bitrate flags available */
668 #define IW_BITRATE_TYPE 0x00FF /* Type of value */
669 #define IW_BITRATE_UNICAST 0x0001 /* Maximum/Fixed unicast bitrate */
670 #define IW_BITRATE_BROADCAST 0x0002 /* Fixed broadcast bitrate */
672 /****************************** TYPES ******************************/
674 /* --------------------------- SUBTYPES --------------------------- */
676 * Generic format for most parameters that fit in an int
680 int32_t value
; /* The value of the parameter itself */
681 uint8_t fixed
; /* Hardware should not use auto select */
682 uint8_t disabled
; /* Disable the feature */
683 uint16_t flags
; /* Various specifc flags (if any) */
687 * For all data larger than 16 octets, we need to use a
688 * pointer to memory allocated in user space.
692 void *pointer
; /* Pointer to the data (in user space) */
693 uint16_t length
; /* number of fields or size in bytes */
694 uint16_t flags
; /* Optional params */
699 * For numbers lower than 10^9, we encode the number in 'm' and
701 * For number greater than 10^9, we divide it by the lowest power
702 * of 10 to get 'm' lower than 10^9, with 'm'= f / (10^'e')...
703 * The power of 10 is in 'e', the result of the division is in 'm'.
707 int32_t m
; /* Mantissa */
708 int16_t e
; /* Exponent */
709 uint8_t i
; /* List index (when in range struct) */
710 uint8_t flags
; /* Flags (fixed/auto) */
714 * Quality of the link
718 uint8_t qual
; /* link quality (%retries, SNR,
719 %missed beacons or better...) */
720 uint8_t level
; /* signal level (dBm) */
721 uint8_t noise
; /* noise level (dBm) */
722 uint8_t updated
; /* Flags to know if updated */
726 * Packet discarded in the wireless adapter due to
727 * "wireless" specific problems...
728 * Note : the list of counter and statistics in net_device_stats
729 * is already pretty exhaustive, and you should use that first.
730 * This is only additional stats...
734 uint32_t nwid
; /* Rx : Wrong nwid/essid */
735 uint32_t code
; /* Rx : Unable to code/decode (WEP) */
736 uint32_t fragment
; /* Rx : Can't perform MAC reassembly */
737 uint32_t retries
; /* Tx : Max MAC retries num reached */
738 uint32_t misc
; /* Others cases */
742 * Packet/Time period missed in the wireless adapter due to
743 * "wireless" specific problems...
747 uint32_t beacon
; /* Missed beacons/superframe */
751 * Quality range (for spy threshold)
755 struct sockaddr addr
; /* Source address (hw/mac) */
756 struct iw_quality qual
; /* Quality of the link */
757 struct iw_quality low
; /* Low threshold */
758 struct iw_quality high
; /* High threshold */
762 * Optional data for scan request
764 * Note: these optional parameters are controlling parameters for the
765 * scanning behavior, these do not apply to getting scan results
766 * (SIOCGIWSCAN). Drivers are expected to keep a local BSS table and
767 * provide a merged results with all BSSes even if the previous scan
768 * request limited scanning to a subset, e.g., by specifying an SSID.
769 * Especially, scan results are required to include an entry for the
770 * current BSS if the driver is in Managed mode and associated with an AP.
774 uint8_t scan_type
; /* IW_SCAN_TYPE_{ACTIVE,PASSIVE} */
776 uint8_t num_channels
; /* num entries in channel_list;
777 * 0 = scan all allowed channels */
778 uint8_t flags
; /* reserved as padding; use zero, this may
779 * be used in the future for adding flags
780 * to request different scan behavior */
781 struct sockaddr bssid
; /* ff:ff:ff:ff:ff:ff for broadcast BSSID or
782 * individual address of a specific BSS */
785 * Use this ESSID if IW_SCAN_THIS_ESSID flag is used instead of using
786 * the current ESSID. This allows scan requests for specific ESSID
787 * without having to change the current ESSID and potentially breaking
788 * the current association.
790 uint8_t essid
[IW_ESSID_MAX_SIZE
];
793 * Optional parameters for changing the default scanning behavior.
794 * These are based on the MLME-SCAN.request from IEEE Std 802.11.
795 * TU is 1.024 ms. If these are set to 0, driver is expected to use
796 * reasonable default values. min_channel_time defines the time that
797 * will be used to wait for the first reply on each channel. If no
798 * replies are received, next channel will be scanned after this. If
799 * replies are received, total time waited on the channel is defined by
802 uint32_t min_channel_time
; /* in TU */
803 uint32_t max_channel_time
; /* in TU */
805 struct iw_freq channel_list
[IW_MAX_FREQUENCIES
];
808 /* ------------------------- WPA SUPPORT ------------------------- */
811 * Extended data structure for get/set encoding (this is used with
812 * SIOCSIWENCODEEXT/SIOCGIWENCODEEXT. struct iw_point and IW_ENCODE_*
813 * flags are used in the same way as with SIOCSIWENCODE/SIOCGIWENCODE and
814 * only the data contents changes (key data -> this structure, including
817 * If the new key is the first group key, it will be set as the default
818 * TX key. Otherwise, default TX key index is only changed if
819 * IW_ENCODE_EXT_SET_TX_KEY flag is set.
821 * Key will be changed with SIOCSIWENCODEEXT in all cases except for
822 * special "change TX key index" operation which is indicated by setting
823 * key_len = 0 and ext_flags |= IW_ENCODE_EXT_SET_TX_KEY.
825 * tx_seq/rx_seq are only used when respective
826 * IW_ENCODE_EXT_{TX,RX}_SEQ_VALID flag is set in ext_flags. Normal
827 * TKIP/CCMP operation is to set RX seq with SIOCSIWENCODEEXT and start
828 * TX seq from zero whenever key is changed. SIOCGIWENCODEEXT is normally
829 * used only by an Authenticator (AP or an IBSS station) to get the
830 * current TX sequence number. Using TX_SEQ_VALID for SIOCSIWENCODEEXT and
831 * RX_SEQ_VALID for SIOCGIWENCODEEXT are optional, but can be useful for
836 uint32_t ext_flags
; /* IW_ENCODE_EXT_* */
837 uint8_t tx_seq
[IW_ENCODE_SEQ_MAX_SIZE
]; /* LSB first */
838 uint8_t rx_seq
[IW_ENCODE_SEQ_MAX_SIZE
]; /* LSB first */
839 struct sockaddr addr
; /* ff:ff:ff:ff:ff:ff for broadcast/multicast
840 * (group) keys or unicast address for
842 uint16_t alg
; /* IW_ENCODE_ALG_* */
847 /* SIOCSIWMLME data */
850 uint16_t cmd
; /* IW_MLME_* */
851 uint16_t reason_code
;
852 struct sockaddr addr
;
855 /* SIOCSIWPMKSA data */
856 #define IW_PMKSA_ADD 1
857 #define IW_PMKSA_REMOVE 2
858 #define IW_PMKSA_FLUSH 3
860 #define IW_PMKID_LEN 16
864 uint32_t cmd
; /* IW_PMKSA_* */
865 struct sockaddr bssid
;
866 uint8_t pmkid
[IW_PMKID_LEN
];
869 /* IWEVMICHAELMICFAILURE data */
870 struct iw_michaelmicfailure
873 struct sockaddr src_addr
;
874 uint8_t tsc
[IW_ENCODE_SEQ_MAX_SIZE
]; /* LSB first */
877 /* IWEVPMKIDCAND data */
878 #define IW_PMKID_CAND_PREAUTH 0x00000001 /* RNS pre-authentication enabled */
881 uint32_t flags
; /* IW_PMKID_CAND_* */
882 uint32_t index
; /* the smaller the index, the higher the
884 struct sockaddr bssid
;
887 /* ------------------------ WIRELESS STATS ------------------------ */
889 * Wireless statistics (used for /proc/net/wireless)
893 uint16_t status
; /* Status
894 * - device dependent for now */
896 struct iw_quality qual
; /* Quality of the link
897 * (instant/mean/max) */
898 struct iw_discarded discard
; /* Packet discarded counts */
899 struct iw_missed miss
; /* Packet missed counts */
902 /* ------------------------ IOCTL REQUEST ------------------------ */
904 * This structure defines the payload of an ioctl, and is used
907 * Note that this structure should fit on the memory footprint
908 * of iwreq (which is the same as ifreq), which mean a max size of
909 * 16 octets = 128 bits. Warning, pointers might be 64 bits wide...
910 * You should check this when increasing the structures defined
911 * above in this file...
915 /* Config - generic */
917 /* Name : used to verify the presence of wireless extensions.
918 * Name of the protocol/provider... */
920 struct iw_point essid
; /* Extended network name */
921 struct iw_param nwid
; /* network id (or domain - the cell) */
922 struct iw_freq freq
; /* frequency or channel :
924 * > 1000 = frequency in Hz */
926 struct iw_param sens
; /* signal level threshold */
927 struct iw_param bitrate
; /* default bit rate */
928 struct iw_param txpower
; /* default transmit power */
929 struct iw_param rts
; /* RTS threshold threshold */
930 struct iw_param frag
; /* Fragmentation threshold */
931 uint32_t mode
; /* Operation mode */
932 struct iw_param retry
; /* Retry limits & lifetime */
934 struct iw_point encoding
; /* Encoding stuff : tokens */
935 struct iw_param power
; /* PM duration/timeout */
936 struct iw_quality qual
; /* Quality part of statistics */
938 struct sockaddr ap_addr
; /* Access point address */
939 struct sockaddr addr
; /* Destination address (hw/mac) */
941 struct iw_param param
; /* Other small parameters */
942 struct iw_point data
; /* Other large parameters */
946 * The structure to exchange data for ioctl.
947 * This structure is the same as 'struct ifreq', but (re)defined for
949 * Do I need to remind you about structure size (32 octets) ?
955 char ifrn_name
[16]; /* if name, e.g. "eth0" */
958 /* Data part (defined just above) */
962 /* -------------------------- IOCTL DATA -------------------------- */
964 * For those ioctl which want to exchange mode data that what could
965 * fit in the above structure...
969 * Range of parameters
974 /* Informative stuff (to choose between different interface) */
975 uint32_t throughput
; /* To give an idea... */
976 /* In theory this value should be the maximum benchmarked
977 * TCP/IP throughput, because with most of these devices the
978 * bit rate is meaningless (overhead an co) to estimate how
979 * fast the connection will go and pick the fastest one.
980 * I suggest people to play with Netperf or any benchmark...
983 /* NWID (or domain id) */
984 uint32_t min_nwid
; /* Minimal NWID we are able to set */
985 uint32_t max_nwid
; /* Maximal NWID we are able to set */
987 /* Old Frequency (backward compat - moved lower ) */
988 uint16_t old_num_channels
;
989 uint8_t old_num_frequency
;
991 /* Wireless event capability bitmasks */
992 uint32_t event_capa
[6];
994 /* signal level threshold range */
997 /* Quality of link & SNR stuff */
998 /* Quality range (link, level, noise)
999 * If the quality is absolute, it will be in the range [0 ; max_qual],
1000 * if the quality is dBm, it will be in the range [max_qual ; 0].
1001 * Don't forget that we use 8 bit arithmetics... */
1002 struct iw_quality max_qual
; /* Quality of the link */
1003 /* This should contain the average/typical values of the quality
1004 * indicator. This should be the threshold between a "good" and
1005 * a "bad" link (example : monitor going from green to orange).
1006 * Currently, user space apps like quality monitors don't have any
1007 * way to calibrate the measurement. With this, they can split
1008 * the range between 0 and max_qual in different quality level
1009 * (using a geometric subdivision centered on the average).
1010 * I expect that people doing the user space apps will feedback
1011 * us on which value we need to put in each driver... */
1012 struct iw_quality avg_qual
; /* Quality of the link */
1015 uint8_t num_bitrates
; /* Number of entries in the list */
1016 int32_t bitrate
[IW_MAX_BITRATES
]; /* list, in bps */
1019 int32_t min_rts
; /* Minimal RTS threshold */
1020 int32_t max_rts
; /* Maximal RTS threshold */
1022 /* Frag threshold */
1023 int32_t min_frag
; /* Minimal frag threshold */
1024 int32_t max_frag
; /* Maximal frag threshold */
1026 /* Power Management duration & timeout */
1027 int32_t min_pmp
; /* Minimal PM period */
1028 int32_t max_pmp
; /* Maximal PM period */
1029 int32_t min_pmt
; /* Minimal PM timeout */
1030 int32_t max_pmt
; /* Maximal PM timeout */
1031 uint16_t pmp_flags
; /* How to decode max/min PM period */
1032 uint16_t pmt_flags
; /* How to decode max/min PM timeout */
1033 uint16_t pm_capa
; /* What PM options are supported */
1036 uint16_t encoding_size
[IW_MAX_ENCODING_SIZES
]; /* Different token sizes */
1037 uint8_t num_encoding_sizes
; /* Number of entry in the list */
1038 uint8_t max_encoding_tokens
; /* Max number of tokens */
1039 /* For drivers that need a "login/passwd" form */
1040 uint8_t encoding_login_index
; /* token index for login token */
1042 /* Transmit power */
1043 uint16_t txpower_capa
; /* What options are supported */
1044 uint8_t num_txpower
; /* Number of entries in the list */
1045 int32_t txpower
[IW_MAX_TXPOWER
]; /* list, in bps */
1047 /* Wireless Extension version info */
1048 uint8_t we_version_compiled
; /* Must be WIRELESS_EXT */
1049 uint8_t we_version_source
; /* Last update of source */
1051 /* Retry limits and lifetime */
1052 uint16_t retry_capa
; /* What retry options are supported */
1053 uint16_t retry_flags
; /* How to decode max/min retry limit */
1054 uint16_t r_time_flags
; /* How to decode max/min retry life */
1055 int32_t min_retry
; /* Minimal number of retries */
1056 int32_t max_retry
; /* Maximal number of retries */
1057 int32_t min_r_time
; /* Minimal retry lifetime */
1058 int32_t max_r_time
; /* Maximal retry lifetime */
1061 uint16_t num_channels
; /* Number of channels [0; num - 1] */
1062 uint8_t num_frequency
; /* Number of entry in the list */
1063 struct iw_freq freq
[IW_MAX_FREQUENCIES
]; /* list */
1064 /* Note : this frequency list doesn't need to fit channel numbers,
1065 * because each entry contain its channel index */
1067 uint32_t enc_capa
; /* IW_ENC_CAPA_* bit field */
1069 /* More power management stuff */
1070 int32_t min_pms
; /* Minimal PM saving */
1071 int32_t max_pms
; /* Maximal PM saving */
1072 uint16_t pms_flags
; /* How to decode max/min PM saving */
1074 /* All available modulations for driver (hw may support less) */
1075 int32_t modul_capa
; /* IW_MODUL_* bit field */
1077 /* More bitrate stuff */
1078 uint32_t bitrate_capa
; /* Types of bitrates supported */
1082 * Private ioctl interface information
1087 uint32_t cmd
; /* Number of the ioctl to issue */
1088 uint16_t set_args
; /* Type and number of args */
1089 uint16_t get_args
; /* Type and number of args */
1090 char name
[16]; /* Name of the extension */
1093 /* ----------------------- WIRELESS EVENTS ----------------------- */
1095 * Wireless events are carried through the rtnetlink socket to user
1096 * space. They are encapsulated in the IFLA_WIRELESS field of
1097 * a RTM_NEWLINK message.
1101 * A Wireless Event. Contains basically the same data as the ioctl...
1105 uint16_t len
; /* Real lenght of this stuff */
1106 uint16_t cmd
; /* Wireless IOCTL */
1107 union iwreq_data u
; /* IOCTL fixed payload */
1110 /* Size of the Event prefix (including padding and alignement junk) */
1111 #define IW_EV_LCP_LEN (sizeof(struct iw_event) - sizeof(union iwreq_data))
1112 /* Size of the various events */
1113 #define IW_EV_CHAR_LEN (IW_EV_LCP_LEN + IFNAMSIZ)
1114 #define IW_EV_UINT_LEN (IW_EV_LCP_LEN + sizeof(uint32_t))
1115 #define IW_EV_FREQ_LEN (IW_EV_LCP_LEN + sizeof(struct iw_freq))
1116 #define IW_EV_PARAM_LEN (IW_EV_LCP_LEN + sizeof(struct iw_param))
1117 #define IW_EV_ADDR_LEN (IW_EV_LCP_LEN + sizeof(struct sockaddr))
1118 #define IW_EV_QUAL_LEN (IW_EV_LCP_LEN + sizeof(struct iw_quality))
1120 /* iw_point events are special. First, the payload (extra data) come at
1121 * the end of the event, so they are bigger than IW_EV_POINT_LEN. Second,
1122 * we omit the pointer, so start at an offset. */
1123 #define IW_EV_POINT_OFF (((char *) &(((struct iw_point *) NULL)->length)) - \
1125 #define IW_EV_POINT_LEN (IW_EV_LCP_LEN + sizeof(struct iw_point) - \
1128 /* Size of the Event prefix when packed in stream */
1129 #define IW_EV_LCP_PK_LEN (4)
1130 /* Size of the various events when packed in stream */
1131 #define IW_EV_CHAR_PK_LEN (IW_EV_LCP_PK_LEN + IFNAMSIZ)
1132 #define IW_EV_UINT_PK_LEN (IW_EV_LCP_PK_LEN + sizeof(uint32_t))
1133 #define IW_EV_FREQ_PK_LEN (IW_EV_LCP_PK_LEN + sizeof(struct iw_freq))
1134 #define IW_EV_PARAM_PK_LEN (IW_EV_LCP_PK_LEN + sizeof(struct iw_param))
1135 #define IW_EV_ADDR_PK_LEN (IW_EV_LCP_PK_LEN + sizeof(struct sockaddr))
1136 #define IW_EV_QUAL_PK_LEN (IW_EV_LCP_PK_LEN + sizeof(struct iw_quality))
1137 #define IW_EV_POINT_PK_LEN (IW_EV_LCP_LEN + 4)
1139 #endif /* _LINUX_WIRELESS_H */
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