1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef NET_COMPAT_H 3 #define NET_COMPAT_H 4 5 6 struct sock; 7 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 22 struct compat_mmsghdr { 23 struct compat_msghdr msg_hdr; 24 compat_uint_t msg_len; 25 }; 26 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 int compat_sock_get_timestamp(struct sock *, struct timeval __user *); 34 int compat_sock_get_timestampns(struct sock *, struct timespec __user *); 35 36 #else /* defined(CONFIG_COMPAT) */ 37 /* 38 * To avoid compiler warnings: 39 */ 40 #define compat_msghdr msghdr 41 #define compat_mmsghdr mmsghdr 42 #endif /* defined(CONFIG_COMPAT) */ 43 44 int get_compat_msghdr(struct msghdr *, struct compat_msghdr __user *, 45 struct sockaddr __user **, struct iovec **); 46 struct sock_fprog __user *get_compat_bpf_fprog(char __user *optval); 47 asmlinkage long compat_sys_sendmsg(int, struct compat_msghdr __user *, 48 unsigned int); 49 asmlinkage long compat_sys_sendmmsg(int, struct compat_mmsghdr __user *, 50 unsigned int, unsigned int); 51 asmlinkage long compat_sys_recvmsg(int, struct compat_msghdr __user *, 52 unsigned int); 53 asmlinkage long compat_sys_recvmmsg(int, struct compat_mmsghdr __user *, 54 unsigned int, unsigned int, 55 struct compat_timespec __user *); 56 asmlinkage long compat_sys_getsockopt(int, int, int, char __user *, 57 int __user *); 58 int put_cmsg_compat(struct msghdr*, int, int, int, void *); 59 60 int cmsghdr_from_user_compat_to_kern(struct msghdr *, struct sock *, 61 unsigned char *, int); 62 63 int compat_mc_setsockopt(struct sock *, int, int, char __user *, unsigned int, 64 int (*)(struct sock *, int, int, char __user *, 65 unsigned int)); 66 int compat_mc_getsockopt(struct sock *, int, int, char __user *, int __user *, 67 int (*)(struct sock *, int, int, char __user *, 68 int __user *)); 69 70 #endif /* NET_COMPAT_H */ 71