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