1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __LINUX_MROUTE_H
3#define __LINUX_MROUTE_H
4
5#include <linux/in.h>
6#include <linux/pim.h>
7#include <net/fib_rules.h>
8#include <net/fib_notifier.h>
9#include <uapi/linux/mroute.h>
10#include <linux/mroute_base.h>
11#include <linux/sockptr.h>
12
13#ifdef CONFIG_IP_MROUTE
14static inline int ip_mroute_opt(int opt)
15{
16 return opt >= MRT_BASE && opt <= MRT_MAX;
17}
18
19int ip_mroute_setsockopt(struct sock *, int, sockptr_t, unsigned int);
20int ip_mroute_getsockopt(struct sock *, int, sockptr_t, sockptr_t);
21int ipmr_ioctl(struct sock *sk, int cmd, void *arg);
22int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
23int ip_mr_init(void);
24bool ipmr_rule_default(const struct fib_rule *rule);
25int ipmr_sk_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
26#else
27static inline int ip_mroute_setsockopt(struct sock *sock, int optname,
28 sockptr_t optval, unsigned int optlen)
29{
30 return -ENOPROTOOPT;
31}
32
33static inline int ip_mroute_getsockopt(struct sock *sk, int optname,
34 sockptr_t optval, sockptr_t optlen)
35{
36 return -ENOPROTOOPT;
37}
38
39static inline int ipmr_ioctl(struct sock *sk, int cmd, void *arg)
40{
41 return -ENOIOCTLCMD;
42}
43
44static inline int ip_mr_init(void)
45{
46 return 0;
47}
48
49static inline int ip_mroute_opt(int opt)
50{
51 return 0;
52}
53
54static inline bool ipmr_rule_default(const struct fib_rule *rule)
55{
56 return true;
57}
58
59static inline int ipmr_sk_ioctl(struct sock *sk, unsigned int cmd,
60 void __user *arg)
61{
62 return 1;
63}
64#endif
65
66#define VIFF_STATIC 0x8000
67
68struct mfc_cache_cmp_arg {
69 __be32 mfc_mcastgrp;
70 __be32 mfc_origin;
71};
72
73/**
74 * struct mfc_cache - multicast routing entries
75 * @_c: Common multicast routing information; has to be first [for casting]
76 * @mfc_mcastgrp: destination multicast group address
77 * @mfc_origin: source address
78 * @cmparg: used for rhashtable comparisons
79 */
80struct mfc_cache {
81 struct mr_mfc _c;
82 union {
83 struct {
84 __be32 mfc_mcastgrp;
85 __be32 mfc_origin;
86 };
87 struct mfc_cache_cmp_arg cmparg;
88 };
89};
90
91struct rtmsg;
92int ipmr_get_route(struct net *net, struct sk_buff *skb,
93 __be32 saddr, __be32 daddr,
94 struct rtmsg *rtm, u32 portid);
95#endif
96