1 #ifndef NET_COMPAT_H
2 #define NET_COMPAT_H
3 
4 
5 struct sock;
6 
7 #if defined(CONFIG_COMPAT)
8 
9 #include <linux/compat.h>
10 
11 struct compat_msghdr {
12 	compat_uptr_t	msg_name;	/* void * */
13 	compat_int_t	msg_namelen;
14 	compat_uptr_t	msg_iov;	/* struct compat_iovec * */
15 	compat_size_t	msg_iovlen;
16 	compat_uptr_t	msg_control;	/* void * */
17 	compat_size_t	msg_controllen;
18 	compat_uint_t	msg_flags;
19 };
20 
21 struct compat_mmsghdr {
22 	struct compat_msghdr msg_hdr;
23 	compat_uint_t        msg_len;
24 };
25 
26 struct compat_cmsghdr {
27 	compat_size_t	cmsg_len;
28 	compat_int_t	cmsg_level;
29 	compat_int_t	cmsg_type;
30 };
31 
32 extern int compat_sock_get_timestamp(struct sock *, struct timeval __user *);
33 extern int compat_sock_get_timestampns(struct sock *, struct timespec __user *);
34 
35 #else /* defined(CONFIG_COMPAT) */
36 /*
37  * To avoid compiler warnings:
38  */
39 #define compat_msghdr	msghdr
40 #define compat_mmsghdr	mmsghdr
41 #endif /* defined(CONFIG_COMPAT) */
42 
43 extern int get_compat_msghdr(struct msghdr *, struct compat_msghdr __user *);
44 extern int verify_compat_iovec(struct msghdr *, struct iovec *, struct sockaddr_storage *, int);
45 extern asmlinkage long compat_sys_sendmsg(int,struct compat_msghdr __user *,unsigned);
46 extern asmlinkage long compat_sys_sendmmsg(int, struct compat_mmsghdr __user *,
47 					   unsigned, unsigned);
48 extern asmlinkage long compat_sys_recvmsg(int,struct compat_msghdr __user *,unsigned);
49 extern asmlinkage long compat_sys_recvmmsg(int, struct compat_mmsghdr __user *,
50 					   unsigned, unsigned,
51 					   struct compat_timespec __user *);
52 extern asmlinkage long compat_sys_getsockopt(int, int, int, char __user *, int __user *);
53 extern int put_cmsg_compat(struct msghdr*, int, int, int, void *);
54 
55 extern int cmsghdr_from_user_compat_to_kern(struct msghdr *, struct sock *, unsigned char *, int);
56 
57 extern int compat_mc_setsockopt(struct sock *, int, int, char __user *, unsigned int,
58 	int (*)(struct sock *, int, int, char __user *, unsigned int));
59 extern int compat_mc_getsockopt(struct sock *, int, int, char __user *,
60 	int __user *, int (*)(struct sock *, int, int, char __user *,
61 				int __user *));
62 
63 #endif /* NET_COMPAT_H */
64