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
ip_mroute_opt(int opt)14 static inline int ip_mroute_opt(int opt)
15 {
16 return opt >= MRT_BASE && opt <= MRT_MAX;
17 }
18
19 int ip_mroute_setsockopt(struct sock *, int, sockptr_t, unsigned int);
20 int ip_mroute_getsockopt(struct sock *, int, char __user *, int __user *);
21 int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg);
22 int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
23 int ip_mr_init(void);
24 bool ipmr_rule_default(const struct fib_rule *rule);
25 #else
ip_mroute_setsockopt(struct sock * sock,int optname,sockptr_t optval,unsigned int optlen)26 static inline int ip_mroute_setsockopt(struct sock *sock, int optname,
27 sockptr_t optval, unsigned int optlen)
28 {
29 return -ENOPROTOOPT;
30 }
31
ip_mroute_getsockopt(struct sock * sock,int optname,char __user * optval,int __user * optlen)32 static inline int ip_mroute_getsockopt(struct sock *sock, int optname,
33 char __user *optval, int __user *optlen)
34 {
35 return -ENOPROTOOPT;
36 }
37
ipmr_ioctl(struct sock * sk,int cmd,void __user * arg)38 static inline int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg)
39 {
40 return -ENOIOCTLCMD;
41 }
42
ip_mr_init(void)43 static inline int ip_mr_init(void)
44 {
45 return 0;
46 }
47
ip_mroute_opt(int opt)48 static inline int ip_mroute_opt(int opt)
49 {
50 return 0;
51 }
52
ipmr_rule_default(const struct fib_rule * rule)53 static inline bool ipmr_rule_default(const struct fib_rule *rule)
54 {
55 return true;
56 }
57 #endif
58
59 #define VIFF_STATIC 0x8000
60
61 struct mfc_cache_cmp_arg {
62 __be32 mfc_mcastgrp;
63 __be32 mfc_origin;
64 };
65
66 /**
67 * struct mfc_cache - multicast routing entries
68 * @_c: Common multicast routing information; has to be first [for casting]
69 * @mfc_mcastgrp: destination multicast group address
70 * @mfc_origin: source address
71 * @cmparg: used for rhashtable comparisons
72 */
73 struct mfc_cache {
74 struct mr_mfc _c;
75 union {
76 struct {
77 __be32 mfc_mcastgrp;
78 __be32 mfc_origin;
79 };
80 struct mfc_cache_cmp_arg cmparg;
81 };
82 };
83
84 struct rtmsg;
85 int ipmr_get_route(struct net *net, struct sk_buff *skb,
86 __be32 saddr, __be32 daddr,
87 struct rtmsg *rtm, u32 portid);
88 #endif
89