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- /*
- * This file define a set of standard wireless extensions
- *
- * Version : 9 16.10.99
- *
- * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com>
- */
- #ifndef _LINUX_WIRELESS_H
- #define _LINUX_WIRELESS_H
- /************************** DOCUMENTATION **************************/
- /*
- * 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)
- *
- * 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 "caddr_t" et al */
- #include <linux/socket.h> /* for "struct sockaddr" et al */
- #include <linux/if.h> /* for IFNAMSIZ and co... */
- /**************************** CONSTANTS ****************************/
- /* --------------------------- 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 10
- /*
- * 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)
- */
- /* -------------------------- IOCTL LIST -------------------------- */
- /* Basic operations */
- #define SIOCSIWNAME 0x8B00 /* Unused */
- #define SIOCGIWNAME 0x8B01 /* get name == wireless protocol */
- #define SIOCSIWNWID 0x8B02 /* set network id (the cell) */
- #define SIOCGIWNWID 0x8B03 /* get network id */
- #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 */
- /* Mobile IP support */
- #define SIOCSIWSPY 0x8B10 /* set spy addresses */
- #define SIOCGIWSPY 0x8B11 /* get spy info (quality of link) */
- /* Access Point manipulation */
- #define SIOCSIWAP 0x8B14 /* set access point MAC addresses */
- #define SIOCGIWAP 0x8B15 /* get access point MAC addresses */
- #define SIOCGIWAPLIST 0x8B17 /* get list of access point in range */
- /* 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...
- * The "flags" member indicate if the ESSID is active or not (promiscuous).
- */
- /* Other parameters usefull 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) */
- /* 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 */
- /* ------------------------- IOCTL STUFF ------------------------- */
- /* The first and the last (range) */
- #define SIOCIWFIRST 0x8B00
- #define SIOCIWLAST 0x8B30
- /* Even : get (world access), odd : set (root access) */
- #define IW_IS_SET(cmd) (!((cmd) & 0x1))
- #define IW_IS_GET(cmd) ((cmd) & 0x1)
- /* ------------------------- 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 SIOCDEVPRIVATE -> SIOCDEVPRIVATE + 0xF
- */
- #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
- #define IW_PRIV_SIZE_FIXED 0x0800 /* Variable or fixed nuber 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 16
- /* 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 8
- /* Maximum tx powers in the range struct */
- #define IW_MAX_TXPOWER 8
- /* 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 8
- /* 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) */
- /* 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 32 /* 256 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 */
- /* 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_DBM 0x0000 /* Value is in dBm */
- #define IW_TXPOW_MWATT 0x0001 /* Value is in mW */
- /****************************** 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 alocated in user space.
- */
- struct iw_point
- {
- caddr_t 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
- {
- __u32 m; /* Mantissa */
- __u16 e; /* Exponent */
- __u8 i; /* List index (when in range struct) */
- };
- /*
- * Quality of the link
- */
- struct iw_quality
- {
- __u8 qual; /* link quality (%retries, SNR or better...) */
- __u8 level; /* signal level */
- __u8 noise; /* noise level */
- __u8 updated; /* Flags to know if updated */
- };
- /*
- * Packet discarded in the wireless adapter due to
- * "wireless" specific problems...
- */
- struct iw_discarded
- {
- __u32 nwid; /* Wrong nwid */
- __u32 code; /* Unable to code/decode */
- __u32 misc; /* Others cases */
- };
- /* ------------------------ 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 */
- };
- /* ------------------------ IOCTL REQUEST ------------------------ */
- /*
- * The structure to exchange data for ioctl.
- * This structure is the same as 'struct ifreq', but (re)defined for
- * convenience...
- *
- * Note that it should fit on the same memory footprint !
- * You should check this when increasing the above structures (16 octets)
- * 16 octets = 128 bits. Warning, pointers might be 64 bits wide...
- */
- struct iwreq
- {
- union
- {
- char ifrn_name[IFNAMSIZ]; /* if name, e.g. "eth0" */
- } ifr_ifrn;
- /* Data part */
- union
- {
- /* 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_point encoding; /* Encoding stuff : tokens */
- struct iw_param power; /* PM duration/timeout */
- struct sockaddr ap_addr; /* Access point address */
- struct iw_point data; /* Other large parameters */
- } 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 */
- /* 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 */
- /* signal level threshold range */
- __s32 sensitivity;
- /* Quality of link & SNR stuff */
- struct iw_quality max_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 */
- /* 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 */
- };
- /*
- * 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 */
- };
- #endif /* _LINUX_WIRELESS_H */
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