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
14 #if defined(__BIG_ENDIAN_BITFIELD)
18 #elif defined(__LITTLE_ENDIAN_BITFIELD)
24 __u8 prefix[0]; /* 0,8 or 16 */
30 #include <net/ip6_fib.h>
33 #include <linux/ipv6.h>
38 struct fib6_node *rules;
39 struct pol_chain *next;
42 extern struct rt6_info ip6_null_entry;
44 extern int ip6_rt_gc_interval;
46 extern void ip6_route_input(struct sk_buff *skb);
48 extern struct dst_entry * ip6_route_output(struct sock *sk,
51 extern int ip6_route_me_harder(struct sk_buff *skb);
53 extern void ip6_route_init(void);
54 extern void ip6_route_cleanup(void);
56 extern int ipv6_route_ioctl(unsigned int cmd, void __user *arg);
58 extern int ip6_route_add(struct in6_rtmsg *rtmsg,
61 struct netlink_skb_parms *req,
63 extern int ip6_ins_rt(struct rt6_info *,
66 struct netlink_skb_parms *req);
67 extern int ip6_del_rt(struct rt6_info *,
70 struct netlink_skb_parms *req);
72 extern int ip6_rt_addr_add(struct in6_addr *addr,
73 struct net_device *dev,
76 extern int ip6_rt_addr_del(struct in6_addr *addr,
77 struct net_device *dev);
79 extern void rt6_sndmsg(int type, struct in6_addr *dst,
82 struct net_device *dev,
83 int dstlen, int srclen,
84 int metric, __u32 flags);
86 extern struct rt6_info *rt6_lookup(struct in6_addr *daddr,
87 struct in6_addr *saddr,
90 extern struct dst_entry *ndisc_dst_alloc(struct net_device *dev,
91 struct neighbour *neigh,
92 struct in6_addr *addr,
93 int (*output)(struct sk_buff *));
94 extern int ndisc_dst_gc(int *more);
95 extern void fib6_force_start_gc(void);
97 extern struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
98 const struct in6_addr *addr,
102 * support functions for ND
105 extern struct rt6_info * rt6_get_dflt_router(struct in6_addr *addr,
106 struct net_device *dev);
107 extern struct rt6_info * rt6_add_dflt_router(struct in6_addr *gwaddr,
108 struct net_device *dev,
111 extern void rt6_purge_dflt_routers(void);
113 extern int rt6_route_rcv(struct net_device *dev,
115 struct in6_addr *gwaddr);
117 extern void rt6_redirect(struct in6_addr *dest,
118 struct in6_addr *saddr,
119 struct neighbour *neigh,
123 extern void rt6_pmtu_discovery(struct in6_addr *daddr,
124 struct in6_addr *saddr,
125 struct net_device *dev,
129 struct netlink_callback;
130 extern int inet6_dump_fib(struct sk_buff *skb, struct netlink_callback *cb);
131 extern int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
132 extern int inet6_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
133 extern int inet6_rtm_getroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg);
135 extern void rt6_ifdown(struct net_device *dev);
136 extern void rt6_mtu_change(struct net_device *dev, unsigned mtu);
138 extern rwlock_t rt6_lock;
141 * Store a destination cache entry in a socket
143 static inline void __ip6_dst_store(struct sock *sk, struct dst_entry *dst,
144 struct in6_addr *daddr)
146 struct ipv6_pinfo *np = inet6_sk(sk);
147 struct rt6_info *rt = (struct rt6_info *) dst;
149 sk_setup_caps(sk, dst);
150 np->daddr_cache = daddr;
151 np->dst_cookie = rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0;
154 static inline void ip6_dst_store(struct sock *sk, struct dst_entry *dst,
155 struct in6_addr *daddr)
157 write_lock(&sk->sk_dst_lock);
158 __ip6_dst_store(sk, dst, daddr);
159 write_unlock(&sk->sk_dst_lock);
162 static inline int ipv6_unicast_destination(struct sk_buff *skb)
164 struct rt6_info *rt = (struct rt6_info *) skb->dst;
166 return rt->rt6i_flags & RTF_LOCAL;