wireless.10.h

This package contains the Wireless tools, used to manipulate the Wireless Extensions. The Wireless

/* 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 */