path: root/contrib/libs/linux-headers/linux/wireless.h

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 
/* 
 * This file define a set of standard wireless extensions 
 * 
 * Version :	22	16.3.07 
 * 
 * Authors :	Jean Tourrilhes - HPL - <jt@hpl.hp.com> 
 * Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved. 
 */ 
 
#ifndef _LINUX_WIRELESS_H 
#define _LINUX_WIRELESS_H 
 
/************************** DOCUMENTATION **************************/ 
/* 
 * Initial APIs (1996 -> onward) : 
 * ----------------------------- 
 * Basically, the wireless extensions are for now a set of standard ioctl 
 * call + /proc/net/wireless 
 * 
 * The entry /proc/net/wireless give statistics and information on the 
 * driver. 
 * This is better than having each driver having its entry because 
 * its centralised and we may remove the driver module safely. 
 * 
 * Ioctl are used to configure the driver and issue commands.  This is 
 * better than command line options of insmod because we may want to 
 * change dynamically (while the driver is running) some parameters. 
 * 
 * The ioctl mechanimsm are copied from standard devices ioctl. 
 * We have the list of command plus a structure descibing the 
 * data exchanged... 
 * Note that to add these ioctl, I was obliged to modify : 
 *	# net/core/dev.c (two place + add include) 
 *	# net/ipv4/af_inet.c (one place + add include) 
 * 
 * /proc/net/wireless is a copy of /proc/net/dev. 
 * We have a structure for data passed from the driver to /proc/net/wireless 
 * Too add this, I've modified : 
 *	# net/core/dev.c (two other places) 
 *	# include/linux/netdevice.h (one place) 
 *	# include/linux/proc_fs.h (one place) 
 * 
 * New driver API (2002 -> onward) : 
 * ------------------------------- 
 * This file is only concerned with the user space API and common definitions. 
 * The new driver API is defined and documented in : 
 *	# include/net/iw_handler.h 
 * 
 * Note as well that /proc/net/wireless implementation has now moved in : 
 *	# net/core/wireless.c 
 * 
 * Wireless Events (2002 -> onward) : 
 * -------------------------------- 
 * Events are defined at the end of this file, and implemented in : 
 *	# net/core/wireless.c 
 * 
 * Other comments : 
 * -------------- 
 * Do not add here things that are redundant with other mechanisms 
 * (drivers init, ifconfig, /proc/net/dev, ...) and with are not 
 * wireless specific. 
 * 
 * These wireless extensions are not magic : each driver has to provide 
 * support for them... 
 * 
 * IMPORTANT NOTE : As everything in the kernel, this is very much a 
 * work in progress. Contact me if you have ideas of improvements... 
 */ 
 
/***************************** INCLUDES *****************************/ 
 
#include <linux/types.h>		/* for __u* and __s* typedefs */ 
#include <linux/socket.h>		/* for "struct sockaddr" et al	*/ 
#include <linux/if.h>			/* for IFNAMSIZ and co... */ 
 
#include <stddef.h>                     /* for offsetof */ 
 
/***************************** VERSION *****************************/ 
/* 
 * This constant is used to know the availability of the wireless 
 * extensions and to know which version of wireless extensions it is 
 * (there is some stuff that will be added in the future...) 
 * I just plan to increment with each new version. 
 */ 
#define WIRELESS_EXT	22 
 
/* 
 * Changes : 
 * 
 * V2 to V3 
 * -------- 
 *	Alan Cox start some incompatibles changes. I've integrated a bit more. 
 *	- Encryption renamed to Encode to avoid US regulation problems 
 *	- Frequency changed from float to struct to avoid problems on old 386 
 * 
 * V3 to V4 
 * -------- 
 *	- Add sensitivity 
 * 
 * V4 to V5 
 * -------- 
 *	- Missing encoding definitions in range 
 *	- Access points stuff 
 * 
 * V5 to V6 
 * -------- 
 *	- 802.11 support (ESSID ioctls) 
 * 
 * V6 to V7 
 * -------- 
 *	- define IW_ESSID_MAX_SIZE and IW_MAX_AP 
 * 
 * V7 to V8 
 * -------- 
 *	- Changed my e-mail address 
 *	- More 802.11 support (nickname, rate, rts, frag) 
 *	- List index in frequencies 
 * 
 * V8 to V9 
 * -------- 
 *	- Support for 'mode of operation' (ad-hoc, managed...) 
 *	- Support for unicast and multicast power saving 
 *	- Change encoding to support larger tokens (>64 bits) 
 *	- Updated iw_params (disable, flags) and use it for NWID 
 *	- Extracted iw_point from iwreq for clarity 
 * 
 * V9 to V10 
 * --------- 
 *	- Add PM capability to range structure 
 *	- Add PM modifier : MAX/MIN/RELATIVE 
 *	- Add encoding option : IW_ENCODE_NOKEY 
 *	- Add TxPower ioctls (work like TxRate) 
 * 
 * V10 to V11 
 * ---------- 
 *	- Add WE version in range (help backward/forward compatibility) 
 *	- Add retry ioctls (work like PM) 
 * 
 * V11 to V12 
 * ---------- 
 *	- Add SIOCSIWSTATS to get /proc/net/wireless programatically 
 *	- Add DEV PRIVATE IOCTL to avoid collisions in SIOCDEVPRIVATE space 
 *	- Add new statistics (frag, retry, beacon) 
 *	- Add average quality (for user space calibration) 
 * 
 * V12 to V13 
 * ---------- 
 *	- Document creation of new driver API. 
 *	- Extract union iwreq_data from struct iwreq (for new driver API). 
 *	- Rename SIOCSIWNAME as SIOCSIWCOMMIT 
 * 
 * V13 to V14 
 * ---------- 
 *	- Wireless Events support : define struct iw_event 
 *	- Define additional specific event numbers 
 *	- Add "addr" and "param" fields in union iwreq_data 
 *	- AP scanning stuff (SIOCSIWSCAN and friends) 
 * 
 * V14 to V15 
 * ---------- 
 *	- Add IW_PRIV_TYPE_ADDR for struct sockaddr private arg 
 *	- Make struct iw_freq signed (both m & e), add explicit padding 
 *	- Add IWEVCUSTOM for driver specific event/scanning token 
 *	- Add IW_MAX_GET_SPY for driver returning a lot of addresses 
 *	- Add IW_TXPOW_RANGE for range of Tx Powers 
 *	- Add IWEVREGISTERED & IWEVEXPIRED events for Access Points 
 *	- Add IW_MODE_MONITOR for passive monitor 
 * 
 * V15 to V16 
 * ---------- 
 *	- Increase the number of bitrates in iw_range to 32 (for 802.11g) 
 *	- Increase the number of frequencies in iw_range to 32 (for 802.11b+a) 
 *	- Reshuffle struct iw_range for increases, add filler 
 *	- Increase IW_MAX_AP to 64 for driver returning a lot of addresses 
 *	- Remove IW_MAX_GET_SPY because conflict with enhanced spy support 
 *	- Add SIOCSIWTHRSPY/SIOCGIWTHRSPY and "struct iw_thrspy" 
 *	- Add IW_ENCODE_TEMP and iw_range->encoding_login_index 
 * 
 * V16 to V17 
 * ---------- 
 *	- Add flags to frequency -> auto/fixed 
 *	- Document (struct iw_quality *)->updated, add new flags (INVALID) 
 *	- Wireless Event capability in struct iw_range 
 *	- Add support for relative TxPower (yick !) 
 * 
 * V17 to V18 (From Jouni Malinen <j@w1.fi>) 
 * ---------- 
 *	- Add support for WPA/WPA2 
 *	- Add extended encoding configuration (SIOCSIWENCODEEXT and 
 *	  SIOCGIWENCODEEXT) 
 *	- Add SIOCSIWGENIE/SIOCGIWGENIE 
 *	- Add SIOCSIWMLME 
 *	- Add SIOCSIWPMKSA 
 *	- Add struct iw_range bit field for supported encoding capabilities 
 *	- Add optional scan request parameters for SIOCSIWSCAN 
 *	- Add SIOCSIWAUTH/SIOCGIWAUTH for setting authentication and WPA 
 *	  related parameters (extensible up to 4096 parameter values) 
 *	- Add wireless events: IWEVGENIE, IWEVMICHAELMICFAILURE, 
 *	  IWEVASSOCREQIE, IWEVASSOCRESPIE, IWEVPMKIDCAND 
 * 
 * V18 to V19 
 * ---------- 
 *	- Remove (struct iw_point *)->pointer from events and streams 
 *	- Remove header includes to help user space 
 *	- Increase IW_ENCODING_TOKEN_MAX from 32 to 64 
 *	- Add IW_QUAL_ALL_UPDATED and IW_QUAL_ALL_INVALID macros 
 *	- Add explicit flag to tell stats are in dBm : IW_QUAL_DBM 
 *	- Add IW_IOCTL_IDX() and IW_EVENT_IDX() macros 
 * 
 * V19 to V20 
 * ---------- 
 *	- RtNetlink requests support (SET/GET) 
 * 
 * V20 to V21 
 * ---------- 
 *	- Remove (struct net_device *)->get_wireless_stats() 
 *	- Change length in ESSID and NICK to strlen() instead of strlen()+1 
 *	- Add IW_RETRY_SHORT/IW_RETRY_LONG retry modifiers 
 *	- Power/Retry relative values no longer * 100000 
 *	- Add explicit flag to tell stats are in 802.11k RCPI : IW_QUAL_RCPI 
 * 
 * V21 to V22 
 * ---------- 
 *	- Prevent leaking of kernel space in stream on 64 bits. 
 */ 
 
/**************************** CONSTANTS ****************************/ 
 
/* -------------------------- IOCTL LIST -------------------------- */ 
 
/* Wireless Identification */ 
#define SIOCSIWCOMMIT	0x8B00		/* Commit pending changes to driver */ 
#define SIOCGIWNAME	0x8B01		/* get name == wireless protocol */ 
/* SIOCGIWNAME is used to verify the presence of Wireless Extensions. 
 * Common values : "IEEE 802.11-DS", "IEEE 802.11-FH", "IEEE 802.11b"... 
 * Don't put the name of your driver there, it's useless. */ 
 
/* Basic operations */ 
#define SIOCSIWNWID	0x8B02		/* set network id (pre-802.11) */ 
#define SIOCGIWNWID	0x8B03		/* get network id (the cell) */ 
#define SIOCSIWFREQ	0x8B04		/* set channel/frequency (Hz) */ 
#define SIOCGIWFREQ	0x8B05		/* get channel/frequency (Hz) */ 
#define SIOCSIWMODE	0x8B06		/* set operation mode */ 
#define SIOCGIWMODE	0x8B07		/* get operation mode */ 
#define SIOCSIWSENS	0x8B08		/* set sensitivity (dBm) */ 
#define SIOCGIWSENS	0x8B09		/* get sensitivity (dBm) */ 
 
/* Informative stuff */ 
#define SIOCSIWRANGE	0x8B0A		/* Unused */ 
#define SIOCGIWRANGE	0x8B0B		/* Get range of parameters */ 
#define SIOCSIWPRIV	0x8B0C		/* Unused */ 
#define SIOCGIWPRIV	0x8B0D		/* get private ioctl interface info */ 
#define SIOCSIWSTATS	0x8B0E		/* Unused */ 
#define SIOCGIWSTATS	0x8B0F		/* Get /proc/net/wireless stats */ 
/* SIOCGIWSTATS is strictly used between user space and the kernel, and 
 * is never passed to the driver (i.e. the driver will never see it). */ 
 
/* Spy support (statistics per MAC address - used for Mobile IP support) */ 
#define SIOCSIWSPY	0x8B10		/* set spy addresses */ 
#define SIOCGIWSPY	0x8B11		/* get spy info (quality of link) */ 
#define SIOCSIWTHRSPY	0x8B12		/* set spy threshold (spy event) */ 
#define SIOCGIWTHRSPY	0x8B13		/* get spy threshold */ 
 
/* Access Point manipulation */ 
#define SIOCSIWAP	0x8B14		/* set access point MAC addresses */ 
#define SIOCGIWAP	0x8B15		/* get access point MAC addresses */ 
#define SIOCGIWAPLIST	0x8B17		/* Deprecated in favor of scanning */ 
#define SIOCSIWSCAN	0x8B18		/* trigger scanning (list cells) */ 
#define SIOCGIWSCAN	0x8B19		/* get scanning results */ 
 
/* 802.11 specific support */ 
#define SIOCSIWESSID	0x8B1A		/* set ESSID (network name) */ 
#define SIOCGIWESSID	0x8B1B		/* get ESSID */ 
#define SIOCSIWNICKN	0x8B1C		/* set node name/nickname */ 
#define SIOCGIWNICKN	0x8B1D		/* get node name/nickname */ 
/* As the ESSID and NICKN are strings up to 32 bytes long, it doesn't fit 
 * within the 'iwreq' structure, so we need to use the 'data' member to 
 * point to a string in user space, like it is done for RANGE... */ 
 
/* Other parameters useful in 802.11 and some other devices */ 
#define SIOCSIWRATE	0x8B20		/* set default bit rate (bps) */ 
#define SIOCGIWRATE	0x8B21		/* get default bit rate (bps) */ 
#define SIOCSIWRTS	0x8B22		/* set RTS/CTS threshold (bytes) */ 
#define SIOCGIWRTS	0x8B23		/* get RTS/CTS threshold (bytes) */ 
#define SIOCSIWFRAG	0x8B24		/* set fragmentation thr (bytes) */ 
#define SIOCGIWFRAG	0x8B25		/* get fragmentation thr (bytes) */ 
#define SIOCSIWTXPOW	0x8B26		/* set transmit power (dBm) */ 
#define SIOCGIWTXPOW	0x8B27		/* get transmit power (dBm) */ 
#define SIOCSIWRETRY	0x8B28		/* set retry limits and lifetime */ 
#define SIOCGIWRETRY	0x8B29		/* get retry limits and lifetime */ 
 
/* Encoding stuff (scrambling, hardware security, WEP...) */ 
#define SIOCSIWENCODE	0x8B2A		/* set encoding token & mode */ 
#define SIOCGIWENCODE	0x8B2B		/* get encoding token & mode */ 
/* Power saving stuff (power management, unicast and multicast) */ 
#define SIOCSIWPOWER	0x8B2C		/* set Power Management settings */ 
#define SIOCGIWPOWER	0x8B2D		/* get Power Management settings */ 
 
/* WPA : Generic IEEE 802.11 informatiom element (e.g., for WPA/RSN/WMM). 
 * This ioctl uses struct iw_point and data buffer that includes IE id and len 
 * fields. More than one IE may be included in the request. Setting the generic 
 * IE to empty buffer (len=0) removes the generic IE from the driver. Drivers 
 * are allowed to generate their own WPA/RSN IEs, but in these cases, drivers 
 * are required to report the used IE as a wireless event, e.g., when 
 * associating with an AP. */ 
#define SIOCSIWGENIE	0x8B30		/* set generic IE */ 
#define SIOCGIWGENIE	0x8B31		/* get generic IE */ 
 
/* WPA : IEEE 802.11 MLME requests */ 
#define SIOCSIWMLME	0x8B16		/* request MLME operation; uses 
					 * struct iw_mlme */ 
/* WPA : Authentication mode parameters */ 
#define SIOCSIWAUTH	0x8B32		/* set authentication mode params */ 
#define SIOCGIWAUTH	0x8B33		/* get authentication mode params */ 
 
/* WPA : Extended version of encoding configuration */ 
#define SIOCSIWENCODEEXT 0x8B34		/* set encoding token & mode */ 
#define SIOCGIWENCODEEXT 0x8B35		/* get encoding token & mode */ 
 
/* WPA2 : PMKSA cache management */ 
#define SIOCSIWPMKSA	0x8B36		/* PMKSA cache operation */ 
 
/* -------------------- DEV PRIVATE IOCTL LIST -------------------- */ 
 
/* These 32 ioctl are wireless device private, for 16 commands. 
 * Each driver is free to use them for whatever purpose it chooses, 
 * however the driver *must* export the description of those ioctls 
 * with SIOCGIWPRIV and *must* use arguments as defined below. 
 * If you don't follow those rules, DaveM is going to hate you (reason : 
 * it make mixed 32/64bit operation impossible). 
 */ 
#define SIOCIWFIRSTPRIV	0x8BE0 
#define SIOCIWLASTPRIV	0x8BFF 
/* Previously, we were using SIOCDEVPRIVATE, but we now have our 
 * separate range because of collisions with other tools such as 
 * 'mii-tool'. 
 * We now have 32 commands, so a bit more space ;-). 
 * Also, all 'even' commands are only usable by root and don't return the 
 * content of ifr/iwr to user (but you are not obliged to use the set/get 
 * convention, just use every other two command). More details in iwpriv.c. 
 * And I repeat : you are not forced to use them with iwpriv, but you 
 * must be compliant with it. 
 */ 
 
/* ------------------------- IOCTL STUFF ------------------------- */ 
 
/* The first and the last (range) */ 
#define SIOCIWFIRST	0x8B00 
#define SIOCIWLAST	SIOCIWLASTPRIV		/* 0x8BFF */ 
#define IW_IOCTL_IDX(cmd)	((cmd) - SIOCIWFIRST) 
#define IW_HANDLER(id, func)			\ 
	[IW_IOCTL_IDX(id)] = func 
 
/* Odd : get (world access), even : set (root access) */ 
#define IW_IS_SET(cmd)	(!((cmd) & 0x1)) 
#define IW_IS_GET(cmd)	((cmd) & 0x1) 
 
/* ----------------------- WIRELESS EVENTS ----------------------- */ 
/* Those are *NOT* ioctls, do not issue request on them !!! */ 
/* Most events use the same identifier as ioctl requests */ 
 
#define IWEVTXDROP	0x8C00		/* Packet dropped to excessive retry */ 
#define IWEVQUAL	0x8C01		/* Quality part of statistics (scan) */ 
#define IWEVCUSTOM	0x8C02		/* Driver specific ascii string */ 
#define IWEVREGISTERED	0x8C03		/* Discovered a new node (AP mode) */ 
#define IWEVEXPIRED	0x8C04		/* Expired a node (AP mode) */ 
#define IWEVGENIE	0x8C05		/* Generic IE (WPA, RSN, WMM, ..) 
					 * (scan results); This includes id and 
					 * length fields. One IWEVGENIE may 
					 * contain more than one IE. Scan 
					 * results may contain one or more 
					 * IWEVGENIE events. */ 
#define IWEVMICHAELMICFAILURE 0x8C06	/* Michael MIC failure 
					 * (struct iw_michaelmicfailure) 
					 */ 
#define IWEVASSOCREQIE	0x8C07		/* IEs used in (Re)Association Request. 
					 * The data includes id and length 
					 * fields and may contain more than one 
					 * IE. This event is required in 
					 * Managed mode if the driver 
					 * generates its own WPA/RSN IE. This 
					 * should be sent just before 
					 * IWEVREGISTERED event for the 
					 * association. */ 
#define IWEVASSOCRESPIE	0x8C08		/* IEs used in (Re)Association 
					 * Response. The data includes id and 
					 * length fields and may contain more 
					 * than one IE. This may be sent 
					 * between IWEVASSOCREQIE and 
					 * IWEVREGISTERED events for the 
					 * association. */ 
#define IWEVPMKIDCAND	0x8C09		/* PMKID candidate for RSN 
					 * pre-authentication 
					 * (struct iw_pmkid_cand) */ 
 
#define IWEVFIRST	0x8C00 
#define IW_EVENT_IDX(cmd)	((cmd) - IWEVFIRST) 
 
/* ------------------------- PRIVATE INFO ------------------------- */ 
/* 
 * The following is used with SIOCGIWPRIV. It allow a driver to define 
 * the interface (name, type of data) for its private ioctl. 
 * Privates ioctl are SIOCIWFIRSTPRIV -> SIOCIWLASTPRIV 
 */ 
 
#define IW_PRIV_TYPE_MASK	0x7000	/* Type of arguments */ 
#define IW_PRIV_TYPE_NONE	0x0000 
#define IW_PRIV_TYPE_BYTE	0x1000	/* Char as number */ 
#define IW_PRIV_TYPE_CHAR	0x2000	/* Char as character */ 
#define IW_PRIV_TYPE_INT	0x4000	/* 32 bits int */ 
#define IW_PRIV_TYPE_FLOAT	0x5000	/* struct iw_freq */ 
#define IW_PRIV_TYPE_ADDR	0x6000	/* struct sockaddr */ 
 
#define IW_PRIV_SIZE_FIXED	0x0800	/* Variable or fixed number of args */ 
 
#define IW_PRIV_SIZE_MASK	0x07FF	/* Max number of those args */ 
 
/* 
 * Note : if the number of args is fixed and the size < 16 octets, 
 * instead of passing a pointer we will put args in the iwreq struct... 
 */ 
 
/* ----------------------- OTHER CONSTANTS ----------------------- */ 
 
/* Maximum frequencies in the range struct */ 
#define IW_MAX_FREQUENCIES	32 
/* Note : if you have something like 80 frequencies, 
 * don't increase this constant and don't fill the frequency list. 
 * The user will be able to set by channel anyway... */ 
 
/* Maximum bit rates in the range struct */ 
#define IW_MAX_BITRATES		32 
 
/* Maximum tx powers in the range struct */ 
#define IW_MAX_TXPOWER		8 
/* Note : if you more than 8 TXPowers, just set the max and min or 
 * a few of them in the struct iw_range. */ 
 
/* Maximum of address that you may set with SPY */ 
#define IW_MAX_SPY		8 
 
/* Maximum of address that you may get in the 
   list of access points in range */ 
#define IW_MAX_AP		64 
 
/* Maximum size of the ESSID and NICKN strings */ 
#define IW_ESSID_MAX_SIZE	32 
 
/* Modes of operation */ 
#define IW_MODE_AUTO	0	/* Let the driver decides */ 
#define IW_MODE_ADHOC	1	/* Single cell network */ 
#define IW_MODE_INFRA	2	/* Multi cell network, roaming, ... */ 
#define IW_MODE_MASTER	3	/* Synchronisation master or Access Point */ 
#define IW_MODE_REPEAT	4	/* Wireless Repeater (forwarder) */ 
#define IW_MODE_SECOND	5	/* Secondary master/repeater (backup) */ 
#define IW_MODE_MONITOR	6	/* Passive monitor (listen only) */ 
#define IW_MODE_MESH	7	/* Mesh (IEEE 802.11s) network */ 
 
/* Statistics flags (bitmask in updated) */ 
#define IW_QUAL_QUAL_UPDATED	0x01	/* Value was updated since last read */ 
#define IW_QUAL_LEVEL_UPDATED	0x02 
#define IW_QUAL_NOISE_UPDATED	0x04 
#define IW_QUAL_ALL_UPDATED	0x07 
#define IW_QUAL_DBM		0x08	/* Level + Noise are dBm */ 
#define IW_QUAL_QUAL_INVALID	0x10	/* Driver doesn't provide value */ 
#define IW_QUAL_LEVEL_INVALID	0x20 
#define IW_QUAL_NOISE_INVALID	0x40 
#define IW_QUAL_RCPI		0x80	/* Level + Noise are 802.11k RCPI */ 
#define IW_QUAL_ALL_INVALID	0x70 
 
/* Frequency flags */ 
#define IW_FREQ_AUTO		0x00	/* Let the driver decides */ 
#define IW_FREQ_FIXED		0x01	/* Force a specific value */ 
 
/* Maximum number of size of encoding token available 
 * they are listed in the range structure */ 
#define IW_MAX_ENCODING_SIZES	8 
 
/* Maximum size of the encoding token in bytes */ 
#define IW_ENCODING_TOKEN_MAX	64	/* 512 bits (for now) */ 
 
/* Flags for encoding (along with the token) */ 
#define IW_ENCODE_INDEX		0x00FF	/* Token index (if needed) */ 
#define IW_ENCODE_FLAGS		0xFF00	/* Flags defined below */ 
#define IW_ENCODE_MODE		0xF000	/* Modes defined below */ 
#define IW_ENCODE_DISABLED	0x8000	/* Encoding disabled */ 
#define IW_ENCODE_ENABLED	0x0000	/* Encoding enabled */ 
#define IW_ENCODE_RESTRICTED	0x4000	/* Refuse non-encoded packets */ 
#define IW_ENCODE_OPEN		0x2000	/* Accept non-encoded packets */ 
#define IW_ENCODE_NOKEY		0x0800  /* Key is write only, so not present */ 
#define IW_ENCODE_TEMP		0x0400  /* Temporary key */ 
 
/* Power management flags available (along with the value, if any) */ 
#define IW_POWER_ON		0x0000	/* No details... */ 
#define IW_POWER_TYPE		0xF000	/* Type of parameter */ 
#define IW_POWER_PERIOD		0x1000	/* Value is a period/duration of  */ 
#define IW_POWER_TIMEOUT	0x2000	/* Value is a timeout (to go asleep) */ 
#define IW_POWER_MODE		0x0F00	/* Power Management mode */ 
#define IW_POWER_UNICAST_R	0x0100	/* Receive only unicast messages */ 
#define IW_POWER_MULTICAST_R	0x0200	/* Receive only multicast messages */ 
#define IW_POWER_ALL_R		0x0300	/* Receive all messages though PM */ 
#define IW_POWER_FORCE_S	0x0400	/* Force PM procedure for sending unicast */ 
#define IW_POWER_REPEATER	0x0800	/* Repeat broadcast messages in PM period */ 
#define IW_POWER_MODIFIER	0x000F	/* Modify a parameter */ 
#define IW_POWER_MIN		0x0001	/* Value is a minimum  */ 
#define IW_POWER_MAX		0x0002	/* Value is a maximum */ 
#define IW_POWER_RELATIVE	0x0004	/* Value is not in seconds/ms/us */ 
 
/* Transmit Power flags available */ 
#define IW_TXPOW_TYPE		0x00FF	/* Type of value */ 
#define IW_TXPOW_DBM		0x0000	/* Value is in dBm */ 
#define IW_TXPOW_MWATT		0x0001	/* Value is in mW */ 
#define IW_TXPOW_RELATIVE	0x0002	/* Value is in arbitrary units */ 
#define IW_TXPOW_RANGE		0x1000	/* Range of value between min/max */ 
 
/* Retry limits and lifetime flags available */ 
#define IW_RETRY_ON		0x0000	/* No details... */ 
#define IW_RETRY_TYPE		0xF000	/* Type of parameter */ 
#define IW_RETRY_LIMIT		0x1000	/* Maximum number of retries*/ 
#define IW_RETRY_LIFETIME	0x2000	/* Maximum duration of retries in us */ 
#define IW_RETRY_MODIFIER	0x00FF	/* Modify a parameter */ 
#define IW_RETRY_MIN		0x0001	/* Value is a minimum  */ 
#define IW_RETRY_MAX		0x0002	/* Value is a maximum */ 
#define IW_RETRY_RELATIVE	0x0004	/* Value is not in seconds/ms/us */ 
#define IW_RETRY_SHORT		0x0010	/* Value is for short packets  */ 
#define IW_RETRY_LONG		0x0020	/* Value is for long packets */ 
 
/* Scanning request flags */ 
#define IW_SCAN_DEFAULT		0x0000	/* Default scan of the driver */ 
#define IW_SCAN_ALL_ESSID	0x0001	/* Scan all ESSIDs */ 
#define IW_SCAN_THIS_ESSID	0x0002	/* Scan only this ESSID */ 
#define IW_SCAN_ALL_FREQ	0x0004	/* Scan all Frequencies */ 
#define IW_SCAN_THIS_FREQ	0x0008	/* Scan only this Frequency */ 
#define IW_SCAN_ALL_MODE	0x0010	/* Scan all Modes */ 
#define IW_SCAN_THIS_MODE	0x0020	/* Scan only this Mode */ 
#define IW_SCAN_ALL_RATE	0x0040	/* Scan all Bit-Rates */ 
#define IW_SCAN_THIS_RATE	0x0080	/* Scan only this Bit-Rate */ 
/* struct iw_scan_req scan_type */ 
#define IW_SCAN_TYPE_ACTIVE 0 
#define IW_SCAN_TYPE_PASSIVE 1 
/* Maximum size of returned data */ 
#define IW_SCAN_MAX_DATA	4096	/* In bytes */ 
 
/* Scan capability flags - in (struct iw_range *)->scan_capa */ 
#define IW_SCAN_CAPA_NONE		0x00 
#define IW_SCAN_CAPA_ESSID		0x01 
#define IW_SCAN_CAPA_BSSID		0x02 
#define IW_SCAN_CAPA_CHANNEL	0x04 
#define IW_SCAN_CAPA_MODE		0x08 
#define IW_SCAN_CAPA_RATE		0x10 
#define IW_SCAN_CAPA_TYPE		0x20 
#define IW_SCAN_CAPA_TIME		0x40 
 
/* Max number of char in custom event - use multiple of them if needed */ 
#define IW_CUSTOM_MAX		256	/* In bytes */ 
 
/* Generic information element */ 
#define IW_GENERIC_IE_MAX	1024 
 
/* MLME requests (SIOCSIWMLME / struct iw_mlme) */ 
#define IW_MLME_DEAUTH		0 
#define IW_MLME_DISASSOC	1 
#define IW_MLME_AUTH		2 
#define IW_MLME_ASSOC		3 
 
/* SIOCSIWAUTH/SIOCGIWAUTH struct iw_param flags */ 
#define IW_AUTH_INDEX		0x0FFF 
#define IW_AUTH_FLAGS		0xF000 
/* SIOCSIWAUTH/SIOCGIWAUTH parameters (0 .. 4095) 
 * (IW_AUTH_INDEX mask in struct iw_param flags; this is the index of the 
 * parameter that is being set/get to; value will be read/written to 
 * struct iw_param value field) */ 
#define IW_AUTH_WPA_VERSION		0 
#define IW_AUTH_CIPHER_PAIRWISE		1 
#define IW_AUTH_CIPHER_GROUP		2 
#define IW_AUTH_KEY_MGMT		3 
#define IW_AUTH_TKIP_COUNTERMEASURES	4 
#define IW_AUTH_DROP_UNENCRYPTED	5 
#define IW_AUTH_80211_AUTH_ALG		6 
#define IW_AUTH_WPA_ENABLED		7 
#define IW_AUTH_RX_UNENCRYPTED_EAPOL	8 
#define IW_AUTH_ROAMING_CONTROL		9 
#define IW_AUTH_PRIVACY_INVOKED		10 
#define IW_AUTH_CIPHER_GROUP_MGMT	11 
#define IW_AUTH_MFP			12 
 
/* IW_AUTH_WPA_VERSION values (bit field) */ 
#define IW_AUTH_WPA_VERSION_DISABLED	0x00000001 
#define IW_AUTH_WPA_VERSION_WPA		0x00000002 
#define IW_AUTH_WPA_VERSION_WPA2	0x00000004 
 
/* IW_AUTH_PAIRWISE_CIPHER, IW_AUTH_GROUP_CIPHER, and IW_AUTH_CIPHER_GROUP_MGMT 
 * values (bit field) */ 
#define IW_AUTH_CIPHER_NONE	0x00000001 
#define IW_AUTH_CIPHER_WEP40	0x00000002 
#define IW_AUTH_CIPHER_TKIP	0x00000004 
#define IW_AUTH_CIPHER_CCMP	0x00000008 
#define IW_AUTH_CIPHER_WEP104	0x00000010 
#define IW_AUTH_CIPHER_AES_CMAC	0x00000020 
 
/* IW_AUTH_KEY_MGMT values (bit field) */ 
#define IW_AUTH_KEY_MGMT_802_1X	1 
#define IW_AUTH_KEY_MGMT_PSK	2 
 
/* IW_AUTH_80211_AUTH_ALG values (bit field) */ 
#define IW_AUTH_ALG_OPEN_SYSTEM	0x00000001 
#define IW_AUTH_ALG_SHARED_KEY	0x00000002 
#define IW_AUTH_ALG_LEAP	0x00000004 
 
/* IW_AUTH_ROAMING_CONTROL values */ 
#define IW_AUTH_ROAMING_ENABLE	0	/* driver/firmware based roaming */ 
#define IW_AUTH_ROAMING_DISABLE	1	/* user space program used for roaming 
					 * control */ 
 
/* IW_AUTH_MFP (management frame protection) values */ 
#define IW_AUTH_MFP_DISABLED	0	/* MFP disabled */ 
#define IW_AUTH_MFP_OPTIONAL	1	/* MFP optional */ 
#define IW_AUTH_MFP_REQUIRED	2	/* MFP required */ 
 
/* SIOCSIWENCODEEXT definitions */ 
#define IW_ENCODE_SEQ_MAX_SIZE	8 
/* struct iw_encode_ext ->alg */ 
#define IW_ENCODE_ALG_NONE	0 
#define IW_ENCODE_ALG_WEP	1 
#define IW_ENCODE_ALG_TKIP	2 
#define IW_ENCODE_ALG_CCMP	3 
#define IW_ENCODE_ALG_PMK	4 
#define IW_ENCODE_ALG_AES_CMAC	5 
/* struct iw_encode_ext ->ext_flags */ 
#define IW_ENCODE_EXT_TX_SEQ_VALID	0x00000001 
#define IW_ENCODE_EXT_RX_SEQ_VALID	0x00000002 
#define IW_ENCODE_EXT_GROUP_KEY		0x00000004 
#define IW_ENCODE_EXT_SET_TX_KEY	0x00000008 
 
/* IWEVMICHAELMICFAILURE : struct iw_michaelmicfailure ->flags */ 
#define IW_MICFAILURE_KEY_ID	0x00000003 /* Key ID 0..3 */ 
#define IW_MICFAILURE_GROUP	0x00000004 
#define IW_MICFAILURE_PAIRWISE	0x00000008 
#define IW_MICFAILURE_STAKEY	0x00000010 
#define IW_MICFAILURE_COUNT	0x00000060 /* 1 or 2 (0 = count not supported) 
					    */ 
 
/* Bit field values for enc_capa in struct iw_range */ 
#define IW_ENC_CAPA_WPA		0x00000001 
#define IW_ENC_CAPA_WPA2	0x00000002 
#define IW_ENC_CAPA_CIPHER_TKIP	0x00000004 
#define IW_ENC_CAPA_CIPHER_CCMP	0x00000008 
#define IW_ENC_CAPA_4WAY_HANDSHAKE	0x00000010 
 
/* Event capability macros - in (struct iw_range *)->event_capa 
 * Because we have more than 32 possible events, we use an array of 
 * 32 bit bitmasks. Note : 32 bits = 0x20 = 2^5. */ 
#define IW_EVENT_CAPA_BASE(cmd)		((cmd >= SIOCIWFIRSTPRIV) ? \ 
					 (cmd - SIOCIWFIRSTPRIV + 0x60) : \ 
					 (cmd - SIOCIWFIRST)) 
#define IW_EVENT_CAPA_INDEX(cmd)	(IW_EVENT_CAPA_BASE(cmd) >> 5) 
#define IW_EVENT_CAPA_MASK(cmd)		(1 << (IW_EVENT_CAPA_BASE(cmd) & 0x1F)) 
/* Event capability constants - event autogenerated by the kernel 
 * This list is valid for most 802.11 devices, customise as needed... */ 
#define IW_EVENT_CAPA_K_0	(IW_EVENT_CAPA_MASK(0x8B04) | \ 
				 IW_EVENT_CAPA_MASK(0x8B06) | \ 
				 IW_EVENT_CAPA_MASK(0x8B1A)) 
#define IW_EVENT_CAPA_K_1	(IW_EVENT_CAPA_MASK(0x8B2A)) 
/* "Easy" macro to set events in iw_range (less efficient) */ 
#define IW_EVENT_CAPA_SET(event_capa, cmd) (event_capa[IW_EVENT_CAPA_INDEX(cmd)] |= IW_EVENT_CAPA_MASK(cmd)) 
#define IW_EVENT_CAPA_SET_KERNEL(event_capa) {event_capa[0] |= IW_EVENT_CAPA_K_0; event_capa[1] |= IW_EVENT_CAPA_K_1; } 
 
 
/****************************** TYPES ******************************/ 
 
/* --------------------------- SUBTYPES --------------------------- */ 
/* 
 *	Generic format for most parameters that fit in an int 
 */ 
struct iw_param { 
  __s32		value;		/* The value of the parameter itself */ 
  __u8		fixed;		/* Hardware should not use auto select */ 
  __u8		disabled;	/* Disable the feature */ 
  __u16		flags;		/* Various specifc flags (if any) */ 
}; 
 
/* 
 *	For all data larger than 16 octets, we need to use a 
 *	pointer to memory allocated in user space. 
 */ 
struct iw_point { 
  void *pointer;	/* Pointer to the data  (in user space) */ 
  __u16		length;		/* number of fields or size in bytes */ 
  __u16		flags;		/* Optional params */ 
}; 
 
 
/* 
 *	A frequency 
 *	For numbers lower than 10^9, we encode the number in 'm' and 
 *	set 'e' to 0 
 *	For number greater than 10^9, we divide it by the lowest power 
 *	of 10 to get 'm' lower than 10^9, with 'm'= f / (10^'e')... 
 *	The power of 10 is in 'e', the result of the division is in 'm'. 
 */ 
struct iw_freq { 
	__s32		m;		/* Mantissa */ 
	__s16		e;		/* Exponent */ 
	__u8		i;		/* List index (when in range struct) */ 
	__u8		flags;		/* Flags (fixed/auto) */ 
}; 
 
/* 
 *	Quality of the link 
 */ 
struct iw_quality { 
	__u8		qual;		/* link quality (%retries, SNR, 
					   %missed beacons or better...) */ 
	__u8		level;		/* signal level (dBm) */ 
	__u8		noise;		/* noise level (dBm) */ 
	__u8		updated;	/* Flags to know if updated */ 
}; 
 
/* 
 *	Packet discarded in the wireless adapter due to 
 *	"wireless" specific problems... 
 *	Note : the list of counter and statistics in net_device_stats 
 *	is already pretty exhaustive, and you should use that first. 
 *	This is only additional stats... 
 */ 
struct iw_discarded { 
	__u32		nwid;		/* Rx : Wrong nwid/essid */ 
	__u32		code;		/* Rx : Unable to code/decode (WEP) */ 
	__u32		fragment;	/* Rx : Can't perform MAC reassembly */ 
	__u32		retries;	/* Tx : Max MAC retries num reached */ 
	__u32		misc;		/* Others cases */ 
}; 
 
/* 
 *	Packet/Time period missed in the wireless adapter due to 
 *	"wireless" specific problems... 
 */ 
struct iw_missed { 
	__u32		beacon;		/* Missed beacons/superframe */ 
}; 
 
/* 
 *	Quality range (for spy threshold) 
 */ 
struct iw_thrspy { 
	struct sockaddr		addr;		/* Source address (hw/mac) */ 
	struct iw_quality	qual;		/* Quality of the link */ 
	struct iw_quality	low;		/* Low threshold */ 
	struct iw_quality	high;		/* High threshold */ 
}; 
 
/* 
 *	Optional data for scan request 
 * 
 *	Note: these optional parameters are controlling parameters for the 
 *	scanning behavior, these do not apply to getting scan results 
 *	(SIOCGIWSCAN). Drivers are expected to keep a local BSS table and 
 *	provide a merged results with all BSSes even if the previous scan 
 *	request limited scanning to a subset, e.g., by specifying an SSID. 
 *	Especially, scan results are required to include an entry for the 
 *	current BSS if the driver is in Managed mode and associated with an AP. 
 */ 
struct iw_scan_req { 
	__u8		scan_type; /* IW_SCAN_TYPE_{ACTIVE,PASSIVE} */ 
	__u8		essid_len; 
	__u8		num_channels; /* num entries in channel_list; 
				       * 0 = scan all allowed channels */ 
	__u8		flags; /* reserved as padding; use zero, this may 
				* be used in the future for adding flags 
				* to request different scan behavior */ 
	struct sockaddr	bssid; /* ff:ff:ff:ff:ff:ff for broadcast BSSID or 
				* individual address of a specific BSS */ 
 
	/* 
	 * Use this ESSID if IW_SCAN_THIS_ESSID flag is used instead of using 
	 * the current ESSID. This allows scan requests for specific ESSID 
	 * without having to change the current ESSID and potentially breaking 
	 * the current association. 
	 */ 
	__u8		essid[IW_ESSID_MAX_SIZE]; 
 
	/* 
	 * Optional parameters for changing the default scanning behavior. 
	 * These are based on the MLME-SCAN.request from IEEE Std 802.11. 
	 * TU is 1.024 ms. If these are set to 0, driver is expected to use 
	 * reasonable default values. min_channel_time defines the time that 
	 * will be used to wait for the first reply on each channel. If no 
	 * replies are received, next channel will be scanned after this. If 
	 * replies are received, total time waited on the channel is defined by 
	 * max_channel_time. 
	 */ 
	__u32		min_channel_time; /* in TU */ 
	__u32		max_channel_time; /* in TU */ 
 
	struct iw_freq	channel_list[IW_MAX_FREQUENCIES]; 
}; 
 
/* ------------------------- WPA SUPPORT ------------------------- */ 
 
/* 
 *	Extended data structure for get/set encoding (this is used with 
 *	SIOCSIWENCODEEXT/SIOCGIWENCODEEXT. struct iw_point and IW_ENCODE_* 
 *	flags are used in the same way as with SIOCSIWENCODE/SIOCGIWENCODE and 
 *	only the data contents changes (key data -> this structure, including 
 *	key data). 
 * 
 *	If the new key is the first group key, it will be set as the default 
 *	TX key. Otherwise, default TX key index is only changed if 
 *	IW_ENCODE_EXT_SET_TX_KEY flag is set. 
 * 
 *	Key will be changed with SIOCSIWENCODEEXT in all cases except for 
 *	special "change TX key index" operation which is indicated by setting 
 *	key_len = 0 and ext_flags |= IW_ENCODE_EXT_SET_TX_KEY. 
 * 
 *	tx_seq/rx_seq are only used when respective 
 *	IW_ENCODE_EXT_{TX,RX}_SEQ_VALID flag is set in ext_flags. Normal 
 *	TKIP/CCMP operation is to set RX seq with SIOCSIWENCODEEXT and start 
 *	TX seq from zero whenever key is changed. SIOCGIWENCODEEXT is normally 
 *	used only by an Authenticator (AP or an IBSS station) to get the 
 *	current TX sequence number. Using TX_SEQ_VALID for SIOCSIWENCODEEXT and 
 *	RX_SEQ_VALID for SIOCGIWENCODEEXT are optional, but can be useful for 
 *	debugging/testing. 
 */ 
struct iw_encode_ext { 
	__u32		ext_flags; /* IW_ENCODE_EXT_* */ 
	__u8		tx_seq[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */ 
	__u8		rx_seq[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */ 
	struct sockaddr	addr; /* ff:ff:ff:ff:ff:ff for broadcast/multicast 
			       * (group) keys or unicast address for 
			       * individual keys */ 
	__u16		alg; /* IW_ENCODE_ALG_* */ 
	__u16		key_len; 
	__u8		key[0]; 
}; 
 
/* SIOCSIWMLME data */ 
struct iw_mlme { 
	__u16		cmd; /* IW_MLME_* */ 
	__u16		reason_code; 
	struct sockaddr	addr; 
}; 
 
/* SIOCSIWPMKSA data */ 
#define IW_PMKSA_ADD		1 
#define IW_PMKSA_REMOVE		2 
#define IW_PMKSA_FLUSH		3 
 
#define IW_PMKID_LEN	16 
 
struct iw_pmksa { 
	__u32		cmd; /* IW_PMKSA_* */ 
	struct sockaddr	bssid; 
	__u8		pmkid[IW_PMKID_LEN]; 
}; 
 
/* IWEVMICHAELMICFAILURE data */ 
struct iw_michaelmicfailure { 
	__u32		flags; 
	struct sockaddr	src_addr; 
	__u8		tsc[IW_ENCODE_SEQ_MAX_SIZE]; /* LSB first */ 
}; 
 
/* IWEVPMKIDCAND data */ 
#define IW_PMKID_CAND_PREAUTH	0x00000001 /* RNS pre-authentication enabled */ 
struct iw_pmkid_cand { 
	__u32		flags; /* IW_PMKID_CAND_* */ 
	__u32		index; /* the smaller the index, the higher the 
				* priority */ 
	struct sockaddr	bssid; 
}; 
 
/* ------------------------ WIRELESS STATS ------------------------ */ 
/* 
 * Wireless statistics (used for /proc/net/wireless) 
 */ 
struct iw_statistics { 
	__u16		status;		/* Status 
					 * - device dependent for now */ 
 
	struct iw_quality	qual;		/* Quality of the link 
						 * (instant/mean/max) */ 
	struct iw_discarded	discard;	/* Packet discarded counts */ 
	struct iw_missed	miss;		/* Packet missed counts */ 
}; 
 
/* ------------------------ IOCTL REQUEST ------------------------ */ 
/* 
 * This structure defines the payload of an ioctl, and is used 
 * below. 
 * 
 * Note that this structure should fit on the memory footprint 
 * of iwreq (which is the same as ifreq), which mean a max size of 
 * 16 octets = 128 bits. Warning, pointers might be 64 bits wide... 
 * You should check this when increasing the structures defined 
 * above in this file... 
 */ 
union iwreq_data { 
	/* Config - generic */ 
	char		name[IFNAMSIZ]; 
	/* Name : used to verify the presence of  wireless extensions. 
	 * Name of the protocol/provider... */ 
 
	struct iw_point	essid;		/* Extended network name */ 
	struct iw_param	nwid;		/* network id (or domain - the cell) */ 
	struct iw_freq	freq;		/* frequency or channel : 
					 * 0-1000 = channel 
					 * > 1000 = frequency in Hz */ 
 
	struct iw_param	sens;		/* signal level threshold */ 
	struct iw_param	bitrate;	/* default bit rate */ 
	struct iw_param	txpower;	/* default transmit power */ 
	struct iw_param	rts;		/* RTS threshold threshold */ 
	struct iw_param	frag;		/* Fragmentation threshold */ 
	__u32		mode;		/* Operation mode */ 
	struct iw_param	retry;		/* Retry limits & lifetime */ 
 
	struct iw_point	encoding;	/* Encoding stuff : tokens */ 
	struct iw_param	power;		/* PM duration/timeout */ 
	struct iw_quality qual;		/* Quality part of statistics */ 
 
	struct sockaddr	ap_addr;	/* Access point address */ 
	struct sockaddr	addr;		/* Destination address (hw/mac) */ 
 
	struct iw_param	param;		/* Other small parameters */ 
	struct iw_point	data;		/* Other large parameters */ 
}; 
 
/* 
 * The structure to exchange data for ioctl. 
 * This structure is the same as 'struct ifreq', but (re)defined for 
 * convenience... 
 * Do I need to remind you about structure size (32 octets) ? 
 */ 
struct iwreq { 
	union 
	{ 
		char	ifrn_name[IFNAMSIZ];	/* if name, e.g. "eth0" */ 
	} ifr_ifrn; 
 
	/* Data part (defined just above) */ 
	union iwreq_data	u; 
}; 
 
/* -------------------------- IOCTL DATA -------------------------- */ 
/* 
 *	For those ioctl which want to exchange mode data that what could 
 *	fit in the above structure... 
 */ 
 
/* 
 *	Range of parameters 
 */ 
 
struct iw_range { 
	/* Informative stuff (to choose between different interface) */ 
	__u32		throughput;	/* To give an idea... */ 
	/* In theory this value should be the maximum benchmarked 
	 * TCP/IP throughput, because with most of these devices the 
	 * bit rate is meaningless (overhead an co) to estimate how 
	 * fast the connection will go and pick the fastest one. 
	 * I suggest people to play with Netperf or any benchmark... 
	 */ 
 
	/* NWID (or domain id) */ 
	__u32		min_nwid;	/* Minimal NWID we are able to set */ 
	__u32		max_nwid;	/* Maximal NWID we are able to set */ 
 
	/* Old Frequency (backward compat - moved lower ) */ 
	__u16		old_num_channels; 
	__u8		old_num_frequency; 
 
	/* Scan capabilities */ 
	__u8		scan_capa; 	/* IW_SCAN_CAPA_* bit field */ 
 
	/* Wireless event capability bitmasks */ 
	__u32		event_capa[6]; 
 
	/* signal level threshold range */ 
	__s32		sensitivity; 
 
	/* Quality of link & SNR stuff */ 
	/* Quality range (link, level, noise) 
	 * If the quality is absolute, it will be in the range [0 ; max_qual], 
	 * if the quality is dBm, it will be in the range [max_qual ; 0]. 
	 * Don't forget that we use 8 bit arithmetics... */ 
	struct iw_quality	max_qual;	/* Quality of the link */ 
	/* This should contain the average/typical values of the quality 
	 * indicator. This should be the threshold between a "good" and 
	 * a "bad" link (example : monitor going from green to orange). 
	 * Currently, user space apps like quality monitors don't have any 
	 * way to calibrate the measurement. With this, they can split 
	 * the range between 0 and max_qual in different quality level 
	 * (using a geometric subdivision centered on the average). 
	 * I expect that people doing the user space apps will feedback 
	 * us on which value we need to put in each driver... */ 
	struct iw_quality	avg_qual;	/* Quality of the link */ 
 
	/* Rates */ 
	__u8		num_bitrates;	/* Number of entries in the list */ 
	__s32		bitrate[IW_MAX_BITRATES];	/* list, in bps */ 
 
	/* RTS threshold */ 
	__s32		min_rts;	/* Minimal RTS threshold */ 
	__s32		max_rts;	/* Maximal RTS threshold */ 
 
	/* Frag threshold */ 
	__s32		min_frag;	/* Minimal frag threshold */ 
	__s32		max_frag;	/* Maximal frag threshold */ 
 
	/* Power Management duration & timeout */ 
	__s32		min_pmp;	/* Minimal PM period */ 
	__s32		max_pmp;	/* Maximal PM period */ 
	__s32		min_pmt;	/* Minimal PM timeout */ 
	__s32		max_pmt;	/* Maximal PM timeout */ 
	__u16		pmp_flags;	/* How to decode max/min PM period */ 
	__u16		pmt_flags;	/* How to decode max/min PM timeout */ 
	__u16		pm_capa;	/* What PM options are supported */ 
 
	/* Encoder stuff */ 
	__u16	encoding_size[IW_MAX_ENCODING_SIZES];	/* Different token sizes */ 
	__u8	num_encoding_sizes;	/* Number of entry in the list */ 
	__u8	max_encoding_tokens;	/* Max number of tokens */ 
	/* For drivers that need a "login/passwd" form */ 
	__u8	encoding_login_index;	/* token index for login token */ 
 
	/* Transmit power */ 
	__u16		txpower_capa;	/* What options are supported */ 
	__u8		num_txpower;	/* Number of entries in the list */ 
	__s32		txpower[IW_MAX_TXPOWER];	/* list, in bps */ 
 
	/* Wireless Extension version info */ 
	__u8		we_version_compiled;	/* Must be WIRELESS_EXT */ 
	__u8		we_version_source;	/* Last update of source */ 
 
	/* Retry limits and lifetime */ 
	__u16		retry_capa;	/* What retry options are supported */ 
	__u16		retry_flags;	/* How to decode max/min retry limit */ 
	__u16		r_time_flags;	/* How to decode max/min retry life */ 
	__s32		min_retry;	/* Minimal number of retries */ 
	__s32		max_retry;	/* Maximal number of retries */ 
	__s32		min_r_time;	/* Minimal retry lifetime */ 
	__s32		max_r_time;	/* Maximal retry lifetime */ 
 
	/* Frequency */ 
	__u16		num_channels;	/* Number of channels [0; num - 1] */ 
	__u8		num_frequency;	/* Number of entry in the list */ 
	struct iw_freq	freq[IW_MAX_FREQUENCIES];	/* list */ 
	/* Note : this frequency list doesn't need to fit channel numbers, 
	 * because each entry contain its channel index */ 
 
	__u32		enc_capa;	/* IW_ENC_CAPA_* bit field */ 
}; 
 
/* 
 * Private ioctl interface information 
 */ 
 
struct iw_priv_args { 
	__u32		cmd;		/* Number of the ioctl to issue */ 
	__u16		set_args;	/* Type and number of args */ 
	__u16		get_args;	/* Type and number of args */ 
	char		name[IFNAMSIZ];	/* Name of the extension */ 
}; 
 
/* ----------------------- WIRELESS EVENTS ----------------------- */ 
/* 
 * Wireless events are carried through the rtnetlink socket to user 
 * space. They are encapsulated in the IFLA_WIRELESS field of 
 * a RTM_NEWLINK message. 
 */ 
 
/* 
 * A Wireless Event. Contains basically the same data as the ioctl... 
 */ 
struct iw_event { 
	__u16		len;			/* Real length of this stuff */ 
	__u16		cmd;			/* Wireless IOCTL */ 
	union iwreq_data	u;		/* IOCTL fixed payload */ 
}; 
 
/* Size of the Event prefix (including padding and alignement junk) */ 
#define IW_EV_LCP_LEN	(sizeof(struct iw_event) - sizeof(union iwreq_data)) 
/* Size of the various events */ 
#define IW_EV_CHAR_LEN	(IW_EV_LCP_LEN + IFNAMSIZ) 
#define IW_EV_UINT_LEN	(IW_EV_LCP_LEN + sizeof(__u32)) 
#define IW_EV_FREQ_LEN	(IW_EV_LCP_LEN + sizeof(struct iw_freq)) 
#define IW_EV_PARAM_LEN	(IW_EV_LCP_LEN + sizeof(struct iw_param)) 
#define IW_EV_ADDR_LEN	(IW_EV_LCP_LEN + sizeof(struct sockaddr)) 
#define IW_EV_QUAL_LEN	(IW_EV_LCP_LEN + sizeof(struct iw_quality)) 
 
/* iw_point events are special. First, the payload (extra data) come at 
 * the end of the event, so they are bigger than IW_EV_POINT_LEN. Second, 
 * we omit the pointer, so start at an offset. */ 
#define IW_EV_POINT_OFF offsetof(struct iw_point, length) 
#define IW_EV_POINT_LEN	(IW_EV_LCP_LEN + sizeof(struct iw_point) - \ 
			 IW_EV_POINT_OFF) 
 
 
/* Size of the Event prefix when packed in stream */ 
#define IW_EV_LCP_PK_LEN	(4) 
/* Size of the various events when packed in stream */ 
#define IW_EV_CHAR_PK_LEN	(IW_EV_LCP_PK_LEN + IFNAMSIZ) 
#define IW_EV_UINT_PK_LEN	(IW_EV_LCP_PK_LEN + sizeof(__u32)) 
#define IW_EV_FREQ_PK_LEN	(IW_EV_LCP_PK_LEN + sizeof(struct iw_freq)) 
#define IW_EV_PARAM_PK_LEN	(IW_EV_LCP_PK_LEN + sizeof(struct iw_param)) 
#define IW_EV_ADDR_PK_LEN	(IW_EV_LCP_PK_LEN + sizeof(struct sockaddr)) 
#define IW_EV_QUAL_PK_LEN	(IW_EV_LCP_PK_LEN + sizeof(struct iw_quality)) 
#define IW_EV_POINT_PK_LEN	(IW_EV_LCP_PK_LEN + 4) 
 
#endif /* _LINUX_WIRELESS_H */