1#ifndef __LINUX_MROUTE6_H
2#define __LINUX_MROUTE6_H
3
4
5#include <linux/pim.h>
6#include <linux/skbuff.h>	/* for struct sk_buff_head */
7#include <net/net_namespace.h>
8#include <uapi/linux/mroute6.h>
9
10#ifdef CONFIG_IPV6_MROUTE
11static inline int ip6_mroute_opt(int opt)
12{
13	return (opt >= MRT6_BASE) && (opt <= MRT6_MAX);
14}
15#else
16static inline int ip6_mroute_opt(int opt)
17{
18	return 0;
19}
20#endif
21
22struct sock;
23
24#ifdef CONFIG_IPV6_MROUTE
25extern int ip6_mroute_setsockopt(struct sock *, int, char __user *, unsigned int);
26extern int ip6_mroute_getsockopt(struct sock *, int, char __user *, int __user *);
27extern int ip6_mr_input(struct sk_buff *skb);
28extern int ip6mr_ioctl(struct sock *sk, int cmd, void __user *arg);
29extern int ip6mr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg);
30extern int ip6_mr_init(void);
31extern void ip6_mr_cleanup(void);
32#else
33static inline
34int ip6_mroute_setsockopt(struct sock *sock,
35			  int optname, char __user *optval, unsigned int optlen)
36{
37	return -ENOPROTOOPT;
38}
39
40static inline
41int ip6_mroute_getsockopt(struct sock *sock,
42			  int optname, char __user *optval, int __user *optlen)
43{
44	return -ENOPROTOOPT;
45}
46
47static inline
48int ip6mr_ioctl(struct sock *sk, int cmd, void __user *arg)
49{
50	return -ENOIOCTLCMD;
51}
52
53static inline int ip6_mr_init(void)
54{
55	return 0;
56}
57
58static inline void ip6_mr_cleanup(void)
59{
60	return;
61}
62#endif
63
64struct mif_device {
65	struct net_device 	*dev;			/* Device we are using */
66	unsigned long	bytes_in,bytes_out;
67	unsigned long	pkt_in,pkt_out;		/* Statistics 			*/
68	unsigned long	rate_limit;		/* Traffic shaping (NI) 	*/
69	unsigned char	threshold;		/* TTL threshold 		*/
70	unsigned short	flags;			/* Control flags 		*/
71	int		link;			/* Physical interface index	*/
72};
73
74#define VIFF_STATIC 0x8000
75
76struct mfc6_cache {
77	struct list_head list;
78	struct in6_addr mf6c_mcastgrp;			/* Group the entry belongs to 	*/
79	struct in6_addr mf6c_origin;			/* Source of packet 		*/
80	mifi_t mf6c_parent;			/* Source interface		*/
81	int mfc_flags;				/* Flags on line		*/
82
83	union {
84		struct {
85			unsigned long expires;
86			struct sk_buff_head unresolved;	/* Unresolved buffers		*/
87		} unres;
88		struct {
89			unsigned long last_assert;
90			int minvif;
91			int maxvif;
92			unsigned long bytes;
93			unsigned long pkt;
94			unsigned long wrong_if;
95			unsigned char ttls[MAXMIFS];	/* TTL thresholds		*/
96		} res;
97	} mfc_un;
98};
99
100#define MFC_STATIC		1
101#define MFC_NOTIFY		2
102
103#define MFC6_LINES		64
104
105#define MFC6_HASH(a, g) (((__force u32)(a)->s6_addr32[0] ^ \
106			  (__force u32)(a)->s6_addr32[1] ^ \
107			  (__force u32)(a)->s6_addr32[2] ^ \
108			  (__force u32)(a)->s6_addr32[3] ^ \
109			  (__force u32)(g)->s6_addr32[0] ^ \
110			  (__force u32)(g)->s6_addr32[1] ^ \
111			  (__force u32)(g)->s6_addr32[2] ^ \
112			  (__force u32)(g)->s6_addr32[3]) % MFC6_LINES)
113
114#define MFC_ASSERT_THRESH (3*HZ)		/* Maximal freq. of asserts */
115
116struct rtmsg;
117extern int ip6mr_get_route(struct net *net, struct sk_buff *skb,
118			   struct rtmsg *rtm, int nowait);
119
120#ifdef CONFIG_IPV6_MROUTE
121extern struct sock *mroute6_socket(struct net *net, struct sk_buff *skb);
122extern int ip6mr_sk_done(struct sock *sk);
123#else
124static inline struct sock *mroute6_socket(struct net *net, struct sk_buff *skb)
125{
126	return NULL;
127}
128static inline int ip6mr_sk_done(struct sock *sk)
129{
130	return 0;
131}
132#endif
133#endif
134