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 *msg,
50 struct sockaddr __user **save_addr);
51int get_compat_msghdr(struct msghdr *, struct compat_msghdr __user *,
52 struct sockaddr __user **, struct iovec **);
53int put_cmsg_compat(struct msghdr*, int, int, int, void *);
54
55int cmsghdr_from_user_compat_to_kern(struct msghdr *, struct sock *,
56 unsigned char *, int);
57
58struct compat_group_req {
59 __u32 gr_interface;
60 struct __kernel_sockaddr_storage gr_group
61 __aligned(4);
62} __packed;
63
64struct compat_group_source_req {
65 __u32 gsr_interface;
66 struct __kernel_sockaddr_storage gsr_group
67 __aligned(4);
68 struct __kernel_sockaddr_storage gsr_source
69 __aligned(4);
70} __packed;
71
72struct compat_group_filter {
73 union {
74 struct {
75 __u32 gf_interface_aux;
76 struct __kernel_sockaddr_storage gf_group_aux
77 __aligned(4);
78 __u32 gf_fmode_aux;
79 __u32 gf_numsrc_aux;
80 struct __kernel_sockaddr_storage gf_slist[1]
81 __aligned(4);
82 } __packed;
83 struct {
84 __u32 gf_interface;
85 struct __kernel_sockaddr_storage gf_group
86 __aligned(4);
87 __u32 gf_fmode;
88 __u32 gf_numsrc;
89 struct __kernel_sockaddr_storage gf_slist_flex[]
90 __aligned(4);
91 } __packed;
92 };
93} __packed;
94
95#endif /* NET_COMPAT_H */
96