wireless.h 42 KB

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