include/net/compat.h

   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 */