[linux-block.git] / include / net / compat.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef NET_COMPAT_H
#define NET_COMPAT_H


struct sock;

#if defined(CONFIG_COMPAT)

#include <linux/compat.h>

struct compat_msghdr {
	compat_uptr_t	msg_name;	/* void * */
	compat_int_t	msg_namelen;
	compat_uptr_t	msg_iov;	/* struct compat_iovec * */
	compat_size_t	msg_iovlen;
	compat_uptr_t	msg_control;	/* void * */
	compat_size_t	msg_controllen;
	compat_uint_t	msg_flags;
};

struct compat_mmsghdr {
	struct compat_msghdr msg_hdr;
	compat_uint_t        msg_len;
};

struct compat_cmsghdr {
	compat_size_t	cmsg_len;
	compat_int_t	cmsg_level;
	compat_int_t	cmsg_type;
};

#else /* defined(CONFIG_COMPAT) */
/*
 * To avoid compiler warnings:
 */
#define compat_msghdr	msghdr
#define compat_mmsghdr	mmsghdr
#endif /* defined(CONFIG_COMPAT) */

int __get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr __user *umsg,
			struct sockaddr __user **save_addr, compat_uptr_t *ptr,
			compat_size_t *len);
int get_compat_msghdr(struct msghdr *, struct compat_msghdr __user *,
		      struct sockaddr __user **, struct iovec **);
struct sock_fprog __user *get_compat_bpf_fprog(char __user *optval);
int put_cmsg_compat(struct msghdr*, int, int, int, void *);

int cmsghdr_from_user_compat_to_kern(struct msghdr *, struct sock *,
				     unsigned char *, int);

int compat_mc_setsockopt(struct sock *, int, int, char __user *, unsigned int,
			 int (*)(struct sock *, int, int, char __user *,
				 unsigned int));
int compat_mc_getsockopt(struct sock *, int, int, char __user *, int __user *,
			 int (*)(struct sock *, int, int, char __user *,
				 int __user *));

#endif /* NET_COMPAT_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
1da177e4 LT	2	#ifndef NET_COMPAT_H
	3	#define NET_COMPAT_H
	4
1da177e4	5
29f767a2 AM	6	struct sock;
29f767a2 AM	7
1da177e4 LT	8	#if defined(CONFIG_COMPAT)
	9
	10	#include <linux/compat.h>
	11
	12	struct compat_msghdr {
	13	compat_uptr_t msg_name; /* void * */
	14	compat_int_t msg_namelen;
	15	compat_uptr_t msg_iov; /* struct compat_iovec * */
	16	compat_size_t msg_iovlen;
	17	compat_uptr_t msg_control; /* void * */
	18	compat_size_t msg_controllen;
	19	compat_uint_t msg_flags;
	20	};
	21
a2e27255 ACM	22	struct compat_mmsghdr {
	23	struct compat_msghdr msg_hdr;
	24	compat_uint_t msg_len;
	25	};
	26
1da177e4 LT	27	struct compat_cmsghdr {
	28	compat_size_t cmsg_len;
	29	compat_int_t cmsg_level;
	30	compat_int_t cmsg_type;
	31	};
	32
	33	#else /* defined(CONFIG_COMPAT) */
74887977 ACM	34	/*
	35	* To avoid compiler warnings:
	36	*/
	37	#define compat_msghdr msghdr
	38	#define compat_mmsghdr mmsghdr
1da177e4 LT	39	#endif /* defined(CONFIG_COMPAT) */
1da177e4 LT	40
0a384abf JA	41	int __get_compat_msghdr(struct msghdr kmsg, struct compat_msghdr __user umsg,
	42	struct sockaddr __user *save_addr, compat_uptr_t ptr,
	43	compat_size_t *len);
da184284	44	int get_compat_msghdr(struct msghdr , struct compat_msghdr __user ,
08adb7da	45	struct sockaddr __user , struct iovec );
719c44d3	46	struct sock_fprog __user get_compat_bpf_fprog(char __user optval);
e8d895a4 JP	47	int put_cmsg_compat(struct msghdr, int, int, int, void );
	48
	49	int cmsghdr_from_user_compat_to_kern(struct msghdr , struct sock ,
	50	unsigned char *, int);
	51
	52	int compat_mc_setsockopt(struct sock , int, int, char __user , unsigned int,
	53	int ()(struct sock , int, int, char __user *,
	54	unsigned int));
	55	int compat_mc_getsockopt(struct sock , int, int, char __user , int __user *,
	56	int ()(struct sock , int, int, char __user *,
	57	int __user *));
dae50295	58
1da177e4	59	#endif /* NET_COMPAT_H */