1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __LINUX_MROUTE_H
3 #define __LINUX_MROUTE_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>
12 #ifdef CONFIG_IP_MROUTE
13 static inline int ip_mroute_opt(int opt)
15 return opt >= MRT_BASE && opt <= MRT_MAX;
18 int ip_mroute_setsockopt(struct sock *, int, char __user *, unsigned int);
19 int ip_mroute_getsockopt(struct sock *, int, char __user *, int __user *);
20 int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg);
21 int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
23 bool ipmr_rule_default(const struct fib_rule *rule);
25 static inline int ip_mroute_setsockopt(struct sock *sock, int optname,
26 char __user *optval, unsigned int optlen)
31 static inline int ip_mroute_getsockopt(struct sock *sock, int optname,
32 char __user *optval, int __user *optlen)
37 static inline int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg)
42 static inline int ip_mr_init(void)
47 static inline int ip_mroute_opt(int opt)
52 static inline bool ipmr_rule_default(const struct fib_rule *rule)
58 struct vif_entry_notifier_info {
59 struct fib_notifier_info info;
60 struct net_device *dev;
62 unsigned short vif_flags;
66 #define VIFF_STATIC 0x8000
68 struct mfc_cache_cmp_arg {
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
87 struct mfc_cache_cmp_arg cmparg;
91 struct mfc_entry_notifier_info {
92 struct fib_notifier_info info;
93 struct mfc_cache *mfc;
98 int ipmr_get_route(struct net *net, struct sk_buff *skb,
99 __be32 saddr, __be32 daddr,
100 struct rtmsg *rtm, u32 portid);
102 #ifdef CONFIG_IP_MROUTE
103 void ipmr_cache_free(struct mfc_cache *mfc_cache);
105 static inline void ipmr_cache_free(struct mfc_cache *mfc_cache)
110 static inline void ipmr_cache_put(struct mfc_cache *c)
112 if (refcount_dec_and_test(&c->_c.mfc_un.res.refcount))
115 static inline void ipmr_cache_hold(struct mfc_cache *c)
117 refcount_inc(&c->_c.mfc_un.res.refcount);