LXR linux/include/net/compat.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef NET_COMPAT_H
   3#define NET_COMPAT_H
   4
   5
   6struct sock;
   7
   8#if defined(CONFIG_COMPAT)
   9
  10#include <linux/compat.h>
  11
  12struct 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
  22struct compat_mmsghdr {
  23        struct compat_msghdr msg_hdr;
  24        compat_uint_t        msg_len;
  25};
  26
  27struct 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
  41int get_compat_msghdr(struct msghdr *, struct compat_msghdr __user *,
  42                      struct sockaddr __user **, struct iovec **);
  43struct sock_fprog __user *get_compat_bpf_fprog(char __user *optval);
  44int put_cmsg_compat(struct msghdr*, int, int, int, void *);
  45
  46int cmsghdr_from_user_compat_to_kern(struct msghdr *, struct sock *,
  47                                     unsigned char *, int);
  48
  49int compat_mc_setsockopt(struct sock *, int, int, char __user *, unsigned int,
  50                         int (*)(struct sock *, int, int, char __user *,
  51                                 unsigned int));
  52int compat_mc_getsockopt(struct sock *, int, int, char __user *, int __user *,
  53                         int (*)(struct sock *, int, int, char __user *,
  54                                 int __user *));
  55
  56#endif /* NET_COMPAT_H */
  57