wireless.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * This file define a set of standard wireless extensions
 4 *
 5 * Version :	22	16.3.07
 6 *
 7 * Authors :	Jean Tourrilhes - HPL - <jt@hpl.hp.com>
 8 * Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved.
 9 */
10#ifndef _LINUX_WIRELESS_H
11#define _LINUX_WIRELESS_H
12
13#include <uapi/linux/wireless.h>
14
15#ifdef CONFIG_COMPAT
16
17#include <linux/compat.h>
18
19struct compat_iw_point {
20	compat_caddr_t pointer;
21	__u16 length;
22	__u16 flags;
23};
24
25struct __compat_iw_event {
26	__u16		len;			/* Real length of this stuff */
27	__u16		cmd;			/* Wireless IOCTL */
28
29	union {
30		compat_caddr_t	pointer;
31
32		/* we need ptr_bytes to make memcpy() run-time destination
33		 * buffer bounds checking happy, nothing special
34		 */
35		DECLARE_FLEX_ARRAY(__u8, ptr_bytes);
36	};
37};
38#define IW_EV_COMPAT_LCP_LEN offsetof(struct __compat_iw_event, pointer)
39#define IW_EV_COMPAT_POINT_OFF offsetof(struct compat_iw_point, length)
40
41/* Size of the various events for compat */
42#define IW_EV_COMPAT_CHAR_LEN	(IW_EV_COMPAT_LCP_LEN + IFNAMSIZ)
43#define IW_EV_COMPAT_UINT_LEN	(IW_EV_COMPAT_LCP_LEN + sizeof(__u32))
44#define IW_EV_COMPAT_FREQ_LEN	(IW_EV_COMPAT_LCP_LEN + sizeof(struct iw_freq))
45#define IW_EV_COMPAT_PARAM_LEN	(IW_EV_COMPAT_LCP_LEN + sizeof(struct iw_param))
46#define IW_EV_COMPAT_ADDR_LEN	(IW_EV_COMPAT_LCP_LEN + sizeof(struct sockaddr))
47#define IW_EV_COMPAT_QUAL_LEN	(IW_EV_COMPAT_LCP_LEN + sizeof(struct iw_quality))
48#define IW_EV_COMPAT_POINT_LEN	\
49	(IW_EV_COMPAT_LCP_LEN + sizeof(struct compat_iw_point) - \
50	 IW_EV_COMPAT_POINT_OFF)
51#endif /* CONFIG_COMPAT */
52#endif	/* _LINUX_WIRELESS_H */