include/linux/wireless.h

/******************************************************************************
 *
 * Copyright(c) 2007 - 2017 Realtek Corporation.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 *****************************************************************************/

#ifndef _LINUX_WIRELESS_H
#define _LINUX_WIRELESS_H

/***************************** INCLUDES *****************************/

#if 0
	#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... */
#else
	#define __user
	/* typedef uint16_t	__u16; */
	#include <sys/socket.h>			/* for "struct sockaddr" et al	*/
	#include <net/if.h>			/* for IFNAMSIZ and co... */
#endif

/****************************** TYPES ******************************/
#ifdef CONFIG_COMPAT
struct compat_iw_point {
	compat_caddr_t pointer;
	__u16 length;
	__u16 flags;
};
#endif
/* --------------------------- SUBTYPES --------------------------- */
/*
 *	For all data larger than 16 octets, we need to use a
 *	pointer to memory allocated in user space.
 */
struct	iw_point {
	void __user	*pointer;	/* Pointer to the data  (in user space) */
	__u16		length;		/* number of fields or size in bytes */
	__u16		flags;		/* Optional params */
};


/* ------------------------ 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	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;
};

#endif	/* _LINUX_WIRELESS_H */