1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef NET_COMPAT_H
3 #define NET_COMPAT_H
4
5
6 struct sock;
7
8 #include <linux/compat.h>
9
10 struct 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
20 struct compat_mmsghdr {
21 struct compat_msghdr msg_hdr;
22 compat_uint_t msg_len;
23 };
24
25 struct compat_cmsghdr {
26 compat_size_t cmsg_len;
27 compat_int_t cmsg_level;
28 compat_int_t cmsg_type;
29 };
30
31 struct 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
49 int __get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr *msg,
50 struct sockaddr __user **save_addr);
51 int get_compat_msghdr(struct msghdr *, struct compat_msghdr __user *,
52 struct sockaddr __user **, struct iovec **);
53 int put_cmsg_compat(struct msghdr*, int, int, int, void *);
54
55 int cmsghdr_from_user_compat_to_kern(struct msghdr *, struct sock *,
56 unsigned char *, int);
57
58 struct compat_group_req {
59 __u32 gr_interface;
60 struct __kernel_sockaddr_storage gr_group
61 __aligned(4);
62 } __packed;
63
64 struct 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
72 struct 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
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