1 #ifndef _NET_IP6_ROUTE_H
2 #define _NET_IP6_ROUTE_H
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
13 #include <net/ip6_fib.h>
14 #include <linux/tcp.h>
20 struct fib6_node *rules;
21 struct pol_chain *next;
24 extern struct rt6_info ip6_null_entry;
26 extern int ip6_rt_gc_interval;
28 extern void ip6_route_input(struct sk_buff *skb);
30 extern struct dst_entry * ip6_route_output(struct sock *sk,
33 extern int ip6_route_me_harder(struct sk_buff *skb);
35 extern void ip6_route_init(void);
36 extern void ip6_route_cleanup(void);
38 extern int ipv6_route_ioctl(unsigned int cmd, void __user *arg);
40 extern int ip6_route_add(struct in6_rtmsg *rtmsg,
43 extern int ip6_del_rt(struct rt6_info *,
47 extern int ip6_rt_addr_add(struct in6_addr *addr,
48 struct net_device *dev,
51 extern int ip6_rt_addr_del(struct in6_addr *addr,
52 struct net_device *dev);
54 extern void rt6_sndmsg(int type, struct in6_addr *dst,
57 struct net_device *dev,
58 int dstlen, int srclen,
59 int metric, __u32 flags);
61 extern struct rt6_info *rt6_lookup(struct in6_addr *daddr,
62 struct in6_addr *saddr,
65 extern struct dst_entry *ndisc_dst_alloc(struct net_device *dev,
66 struct neighbour *neigh,
67 struct in6_addr *addr,
68 int (*output)(struct sk_buff **));
69 extern int ndisc_dst_gc(int *more);
70 extern void fib6_force_start_gc(void);
73 * support functions for ND
76 extern struct rt6_info * rt6_get_dflt_router(struct in6_addr *addr,
77 struct net_device *dev);
78 extern struct rt6_info * rt6_add_dflt_router(struct in6_addr *gwaddr,
79 struct net_device *dev);
81 extern void rt6_purge_dflt_routers(int lst_resort);
83 extern void rt6_redirect(struct in6_addr *dest,
84 struct in6_addr *saddr,
85 struct neighbour *neigh,
88 extern void rt6_pmtu_discovery(struct in6_addr *daddr,
89 struct in6_addr *saddr,
90 struct net_device *dev,
94 struct netlink_callback;
95 extern int inet6_dump_fib(struct sk_buff *skb, struct netlink_callback *cb);
96 extern int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
97 extern int inet6_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
98 extern int inet6_rtm_getroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
100 extern void rt6_ifdown(struct net_device *dev);
101 extern void rt6_mtu_change(struct net_device *dev, unsigned mtu);
103 extern rwlock_t rt6_lock;
106 * Store a destination cache entry in a socket
108 static inline void ip6_dst_store(struct sock *sk, struct dst_entry *dst,
109 struct in6_addr *daddr)
111 struct ipv6_pinfo *np = inet6_sk(sk);
112 struct rt6_info *rt = (struct rt6_info *) dst;
114 write_lock(&sk->sk_dst_lock);
115 __sk_dst_set(sk, dst);
116 np->daddr_cache = daddr;
117 np->dst_cookie = rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0;
118 write_unlock(&sk->sk_dst_lock);
121 static inline int ipv6_unicast_destination(struct sk_buff *skb)
123 struct rt6_info *rt = (struct rt6_info *) skb->dst;
125 return rt->rt6i_flags & RTF_LOCAL;