1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __LINUX_MROUTE6_H
3 #define __LINUX_MROUTE6_H
4
5
6 #include <linux/pim.h>
7 #include <linux/skbuff.h> /* for struct sk_buff_head */
8 #include <net/net_namespace.h>
9 #include <uapi/linux/mroute6.h>
10 #include <linux/mroute_base.h>
11 #include <linux/sockptr.h>
12 #include <net/fib_rules.h>
13
14 #ifdef CONFIG_IPV6_MROUTE
ip6_mroute_opt(int opt)15 static inline int ip6_mroute_opt(int opt)
16 {
17 return (opt >= MRT6_BASE) && (opt <= MRT6_MAX);
18 }
19 #else
ip6_mroute_opt(int opt)20 static inline int ip6_mroute_opt(int opt)
21 {
22 return 0;
23 }
24 #endif
25
26 struct sock;
27
28 #ifdef CONFIG_IPV6_MROUTE
29 extern int ip6_mroute_setsockopt(struct sock *, int, sockptr_t, unsigned int);
30 extern int ip6_mroute_getsockopt(struct sock *, int, char __user *, int __user *);
31 extern int ip6_mr_input(struct sk_buff *skb);
32 extern int ip6mr_ioctl(struct sock *sk, int cmd, void __user *arg);
33 extern int ip6mr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
34 extern int ip6_mr_init(void);
35 extern void ip6_mr_cleanup(void);
36 #else
ip6_mroute_setsockopt(struct sock * sock,int optname,sockptr_t optval,unsigned int optlen)37 static inline int ip6_mroute_setsockopt(struct sock *sock, int optname,
38 sockptr_t optval, unsigned int optlen)
39 {
40 return -ENOPROTOOPT;
41 }
42
43 static inline
ip6_mroute_getsockopt(struct sock * sock,int optname,char __user * optval,int __user * optlen)44 int ip6_mroute_getsockopt(struct sock *sock,
45 int optname, char __user *optval, int __user *optlen)
46 {
47 return -ENOPROTOOPT;
48 }
49
50 static inline
ip6mr_ioctl(struct sock * sk,int cmd,void __user * arg)51 int ip6mr_ioctl(struct sock *sk, int cmd, void __user *arg)
52 {
53 return -ENOIOCTLCMD;
54 }
55
ip6_mr_init(void)56 static inline int ip6_mr_init(void)
57 {
58 return 0;
59 }
60
ip6_mr_cleanup(void)61 static inline void ip6_mr_cleanup(void)
62 {
63 return;
64 }
65 #endif
66
67 #ifdef CONFIG_IPV6_MROUTE_MULTIPLE_TABLES
68 bool ip6mr_rule_default(const struct fib_rule *rule);
69 #else
ip6mr_rule_default(const struct fib_rule * rule)70 static inline bool ip6mr_rule_default(const struct fib_rule *rule)
71 {
72 return true;
73 }
74 #endif
75
76 #define VIFF_STATIC 0x8000
77
78 struct mfc6_cache_cmp_arg {
79 struct in6_addr mf6c_mcastgrp;
80 struct in6_addr mf6c_origin;
81 };
82
83 struct mfc6_cache {
84 struct mr_mfc _c;
85 union {
86 struct {
87 struct in6_addr mf6c_mcastgrp;
88 struct in6_addr mf6c_origin;
89 };
90 struct mfc6_cache_cmp_arg cmparg;
91 };
92 };
93
94 #define MFC_ASSERT_THRESH (3*HZ) /* Maximal freq. of asserts */
95
96 struct rtmsg;
97 extern int ip6mr_get_route(struct net *net, struct sk_buff *skb,
98 struct rtmsg *rtm, u32 portid);
99
100 #ifdef CONFIG_IPV6_MROUTE
101 bool mroute6_is_socket(struct net *net, struct sk_buff *skb);
102 extern int ip6mr_sk_done(struct sock *sk);
103 #else
mroute6_is_socket(struct net * net,struct sk_buff * skb)104 static inline bool mroute6_is_socket(struct net *net, struct sk_buff *skb)
105 {
106 return false;
107 }
ip6mr_sk_done(struct sock * sk)108 static inline int ip6mr_sk_done(struct sock *sk)
109 {
110 return 0;
111 }
112 #endif
113 #endif
114
