1#ifndef _NET_IP6_ROUTE_H
2#define _NET_IP6_ROUTE_H
3
4#define IP6_RT_PRIO_FW		16
5#define IP6_RT_PRIO_USER	1024
6#define IP6_RT_PRIO_ADDRCONF	256
7#define IP6_RT_PRIO_KERN	512
8#define IP6_RT_FLOW_MASK	0x00ff
9
10#ifdef __KERNEL__
11
12#include <net/flow.h>
13#include <net/ip6_fib.h>
14
15struct pol_chain {
16	int			type;
17	int			priority;
18	struct fib6_node	*rules;
19	struct pol_chain	*next;
20};
21
22extern struct rt6_info	ip6_null_entry;
23
24extern int ip6_rt_max_size;
25extern int ip6_rt_gc_min;
26extern int ip6_rt_gc_timeout;
27extern int ip6_rt_gc_interval;
28
29extern void			ip6_route_input(struct sk_buff *skb);
30
31extern struct dst_entry *	ip6_route_output(struct sock *sk,
32						 struct flowi *fl);
33
34extern void			ip6_route_init(void);
35extern void			ip6_route_cleanup(void);
36
37extern int			ipv6_route_ioctl(unsigned int cmd, void *arg);
38
39extern int			ip6_route_add(struct in6_rtmsg *rtmsg);
40extern int			ip6_del_rt(struct rt6_info *);
41
42extern int			ip6_rt_addr_add(struct in6_addr *addr,
43						struct net_device *dev);
44
45extern int			ip6_rt_addr_del(struct in6_addr *addr,
46						struct net_device *dev);
47
48extern void			rt6_sndmsg(int type, struct in6_addr *dst,
49					   struct in6_addr *src,
50					   struct in6_addr *gw,
51					   struct net_device *dev,
52					   int dstlen, int srclen,
53					   int metric, __u32 flags);
54
55extern struct rt6_info		*rt6_lookup(struct in6_addr *daddr,
56					    struct in6_addr *saddr,
57					    int oif, int flags);
58
59/*
60 *	support functions for ND
61 *
62 */
63extern struct rt6_info *	rt6_get_dflt_router(struct in6_addr *addr,
64						    struct net_device *dev);
65extern struct rt6_info *	rt6_add_dflt_router(struct in6_addr *gwaddr,
66						    struct net_device *dev);
67
68extern void			rt6_purge_dflt_routers(int lst_resort);
69
70extern void			rt6_redirect(struct in6_addr *dest,
71					     struct in6_addr *saddr,
72					     struct neighbour *neigh,
73					     int on_link);
74
75extern void			rt6_pmtu_discovery(struct in6_addr *daddr,
76						   struct in6_addr *saddr,
77						   struct net_device *dev,
78						   u32 pmtu);
79
80struct nlmsghdr;
81struct netlink_callback;
82extern int inet6_dump_fib(struct sk_buff *skb, struct netlink_callback *cb);
83extern int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
84extern int inet6_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
85extern int inet6_rtm_getroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
86
87extern void rt6_ifdown(struct net_device *dev);
88extern void rt6_mtu_change(struct net_device *dev, unsigned mtu);
89
90extern rwlock_t rt6_lock;
91
92/*
93 *	Store a destination cache entry in a socket
94 *	For UDP/RAW sockets this is done on udp_connect.
95 */
96
97static inline void ip6_dst_store(struct sock *sk, struct dst_entry *dst,
98				     struct in6_addr *daddr)
99{
100	struct ipv6_pinfo *np = &sk->net_pinfo.af_inet6;
101	struct rt6_info *rt = (struct rt6_info *) dst;
102
103	write_lock(&sk->dst_lock);
104	__sk_dst_set(sk, dst);
105	np->daddr_cache = daddr;
106	np->dst_cookie = rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0;
107	write_unlock(&sk->dst_lock);
108}
109
110#endif
111#endif
112