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#include <linux/compat.h>
   9
  10struct compat_msghdr {
  11        compat_uptr_t   msg_name;       /* void * */
  12        compat_int_t    msg_namelen;
  13        compat_uptr_t   msg_iov;        /* struct compat_iovec * */
  14        compat_size_t   msg_iovlen;
  15        compat_uptr_t   msg_control;    /* void * */
  16        compat_size_t   msg_controllen;
  17        compat_uint_t   msg_flags;
  18};
  19
  20struct compat_mmsghdr {
  21        struct compat_msghdr msg_hdr;
  22        compat_uint_t        msg_len;
  23};
  24
  25struct compat_cmsghdr {
  26        compat_size_t   cmsg_len;
  27        compat_int_t    cmsg_level;
  28        compat_int_t    cmsg_type;
  29};
  30
  31struct compat_rtentry {
  32        u32             rt_pad1;
  33        struct sockaddr rt_dst;         /* target address               */
  34        struct sockaddr rt_gateway;     /* gateway addr (RTF_GATEWAY)   */
  35        struct sockaddr rt_genmask;     /* target network mask (IP)     */
  36        unsigned short  rt_flags;
  37        short           rt_pad2;
  38        u32             rt_pad3;
  39        unsigned char   rt_tos;
  40        unsigned char   rt_class;
  41        short           rt_pad4;
  42        short           rt_metric;      /* +1 for binary compatibility! */
  43        compat_uptr_t   rt_dev;         /* forcing the device at add    */
  44        u32             rt_mtu;         /* per route MTU/Window         */
  45        u32             rt_window;      /* Window clamping              */
  46        unsigned short  rt_irtt;        /* Initial RTT                  */
  47};
  48
  49int __get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr __user *umsg,
  50                        struct sockaddr __user **save_addr, compat_uptr_t *ptr,
  51                        compat_size_t *len);
  52int get_compat_msghdr(struct msghdr *, struct compat_msghdr __user *,
  53                      struct sockaddr __user **, struct iovec **);
  54int put_cmsg_compat(struct msghdr*, int, int, int, void *);
  55
  56int cmsghdr_from_user_compat_to_kern(struct msghdr *, struct sock *,
  57                                     unsigned char *, int);
  58
  59struct compat_group_req {
  60        __u32                            gr_interface;
  61        struct __kernel_sockaddr_storage gr_group
  62                __aligned(4);
  63} __packed;
  64
  65struct compat_group_source_req {
  66        __u32                            gsr_interface;
  67        struct __kernel_sockaddr_storage gsr_group
  68                __aligned(4);
  69        struct __kernel_sockaddr_storage gsr_source
  70                __aligned(4);
  71} __packed;
  72
  73struct compat_group_filter {
  74        union {
  75                struct {
  76                        __u32                            gf_interface_aux;
  77                        struct __kernel_sockaddr_storage gf_group_aux
  78                                __aligned(4);
  79                        __u32                            gf_fmode_aux;
  80                        __u32                            gf_numsrc_aux;
  81                        struct __kernel_sockaddr_storage gf_slist[1]
  82                                __aligned(4);
  83                } __packed;
  84                struct {
  85                        __u32                            gf_interface;
  86                        struct __kernel_sockaddr_storage gf_group
  87                                __aligned(4);
  88                        __u32                            gf_fmode;
  89                        __u32                            gf_numsrc;
  90                        struct __kernel_sockaddr_storage gf_slist_flex[]
  91                                __aligned(4);
  92                } __packed;
  93        };
  94} __packed;
  95
  96#endif /* NET_COMPAT_H */
  97