patch-2.0.30 linux/include/linux/wireless.h

• Lines: 303
• Date: Thu Mar 6 10:03:51 1997
• Orig file: v2.0.29/linux/include/linux/wireless.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.0.29/linux/include/linux/wireless.h linux/include/linux/wireless.h
@@ -0,0 +1,302 @@
+/*
+ * This file define a set of standard wireless extensions
+ *
+ * Version :	4	12.2.97
+ *
+ * Authors :	Jean Tourrilhes - HPLB - <jt@hplb.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	4
+
+/*
+ * Changes :
+ *
+ * V2 to V3
+ * --------
+ *	Alan Cox start some imcompatibles 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
+ */
+
+/* -------------------------- IOCTL LIST -------------------------- */
+
+/* Basic operations */
+#define SIOCSIWNAME	0x8B00		/* Unused ??? */
+#define SIOCGIWNAME	0x8B01		/* get name */
+#define SIOCSIWNWID	0x8B02		/* set network id */
+#define SIOCGIWNWID	0x8B03		/* get network id */
+#define SIOCSIWFREQ	0x8B04		/* set channel/frequency */
+#define SIOCGIWFREQ	0x8B05		/* get channel/frequency */
+#define SIOCSIWENCODE	0x8B06		/* set encoding info */
+#define SIOCGIWENCODE	0x8B07		/* get encoding info */
+#define SIOCSIWSENS	0x8B08		/* set sensitivity */
+#define SIOCGIWSENS	0x8B09		/* get sensitivity */
+
+/* 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) */
+
+/* ------------------------- IOCTL STUFF ------------------------- */
+
+/* The first and the last (range) */
+#define SIOCIWFIRST	0x8B00
+#define SIOCIWLAST	0x8B13
+
+/* 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 of address that you may set with SPY */
+#define IW_MAX_SPY		8
+
+/****************************** TYPES ******************************/
+
+/* --------------------------- SUBTYPES --------------------------- */
+/*
+ *	A frequency
+ *	For numbers lower than 10^9, we encode the number in 'mant' and
+ *	set 'exp' to 0
+ *	For number greater than 10^9, we divide it by a power of 10.
+ *	The power of 10 is in 'exp', the result is in 'mant'.
+ */
+struct	iw_freq
+{
+	__u32		m;		/* Mantissa */
+	__u16		e;		/* Exponent */
+};
+
+/*
+ *	Quality of the link
+ */
+struct	iw_quality
+{
+	__u8		qual;		/* link quality (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
+{
+	__u8		status;		/* Status
+					 * - device dependant 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. "en0" */
+	} 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		/* network id (or domain) : used to to */
+		{		/* create logical channels on the air */
+			__u32	nwid;		/* value */
+			__u8	on;		/* active/unactive nwid */
+		}	nwid;
+
+		struct iw_freq	freq;	/* frequency or channel :
+					 * 0-1000 = channel
+					 * > 1000 = frequency in Hz */
+
+		struct		/* Encoding stuff */
+		{
+			__u8	method;		/* Algorithm number / off */
+			__u64	code;		/* Data used for algorithm */
+		}	encoding;
+
+		__u32	sensitivity;	/* signal level threshold */
+
+		struct		/* For all data bigger than 16 octets */
+		{
+			caddr_t	pointer;	/* Pointer to the data
+						 * (in user space) */
+			__u16	length;		/* fields or byte size */
+			__u16	flags;		/* Unused */
+		}	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... */
+
+	/* 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 */
+
+	/* Encoder stuff */
+
+	/* signal level threshold range */
+	__u32	sensitivity;
+
+	/* Quality of link & SNR stuff */
+	struct iw_quality	max_qual;	/* Quality of the link */
+};
+
+/*
+ * 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 */