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 #else /* defined(CONFIG_COMPAT) */ 34 /* 35 * To avoid compiler warnings: 36 */ 37 #define compat_msghdr msghdr 38 #define compat_mmsghdr mmsghdr 39 #endif /* defined(CONFIG_COMPAT) */ 40 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); 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 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 *)); 58 59 #endif /* NET_COMPAT_H */ 60