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										 |  |  | #ifndef _NET_IP6_ROUTE_H
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							|  |  |  | #define _NET_IP6_ROUTE_H
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							|  |  |  | #define IP6_RT_PRIO_FW		16
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							|  |  |  | #define IP6_RT_PRIO_USER	1024
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							|  |  |  | #define IP6_RT_PRIO_ADDRCONF	256
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							|  |  |  | #define IP6_RT_PRIO_KERN	512
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							|  |  |  | #define IP6_RT_FLOW_MASK	0x00ff
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										 |  |  | struct route_info { | 
					
						
							|  |  |  | 	__u8			type; | 
					
						
							|  |  |  | 	__u8			length; | 
					
						
							|  |  |  | 	__u8			prefix_len; | 
					
						
							|  |  |  | #if defined(__BIG_ENDIAN_BITFIELD)
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							|  |  |  | 	__u8			reserved_h:3, | 
					
						
							|  |  |  | 				route_pref:2, | 
					
						
							|  |  |  | 				reserved_l:3; | 
					
						
							|  |  |  | #elif defined(__LITTLE_ENDIAN_BITFIELD)
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							|  |  |  | 	__u8			reserved_l:3, | 
					
						
							|  |  |  | 				route_pref:2, | 
					
						
							|  |  |  | 				reserved_h:3; | 
					
						
							|  |  |  | #endif
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							|  |  |  | 	__u32			lifetime; | 
					
						
							|  |  |  | 	__u8			prefix[0];	/* 0,8 or 16 */ | 
					
						
							|  |  |  | }; | 
					
						
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										 |  |  | #ifdef __KERNEL__
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							|  |  |  | #include <net/flow.h>
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							|  |  |  | #include <net/ip6_fib.h>
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							|  |  |  | #include <net/sock.h>
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							|  |  |  | #include <linux/ip.h>
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							|  |  |  | #include <linux/ipv6.h>
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							|  |  |  | struct pol_chain { | 
					
						
							|  |  |  | 	int			type; | 
					
						
							|  |  |  | 	int			priority; | 
					
						
							|  |  |  | 	struct fib6_node	*rules; | 
					
						
							|  |  |  | 	struct pol_chain	*next; | 
					
						
							|  |  |  | }; | 
					
						
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							|  |  |  | extern struct rt6_info	ip6_null_entry; | 
					
						
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							|  |  |  | extern int ip6_rt_gc_interval; | 
					
						
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							|  |  |  | extern void			ip6_route_input(struct sk_buff *skb); | 
					
						
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							|  |  |  | extern struct dst_entry *	ip6_route_output(struct sock *sk, | 
					
						
							|  |  |  | 						 struct flowi *fl); | 
					
						
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							|  |  |  | extern int			ip6_route_me_harder(struct sk_buff *skb); | 
					
						
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							|  |  |  | extern void			ip6_route_init(void); | 
					
						
							|  |  |  | extern void			ip6_route_cleanup(void); | 
					
						
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							|  |  |  | extern int			ipv6_route_ioctl(unsigned int cmd, void __user *arg); | 
					
						
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							|  |  |  | extern int			ip6_route_add(struct in6_rtmsg *rtmsg, | 
					
						
							|  |  |  | 					      struct nlmsghdr *, | 
					
						
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										 |  |  | 					      void *rtattr, | 
					
						
							|  |  |  | 					      struct netlink_skb_parms *req); | 
					
						
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										 |  |  | extern int			ip6_ins_rt(struct rt6_info *, | 
					
						
							|  |  |  | 					   struct nlmsghdr *, | 
					
						
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										 |  |  | 					   void *rtattr, | 
					
						
							|  |  |  | 					   struct netlink_skb_parms *req); | 
					
						
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										 |  |  | extern int			ip6_del_rt(struct rt6_info *, | 
					
						
							|  |  |  | 					   struct nlmsghdr *, | 
					
						
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										 |  |  | 					   void *rtattr, | 
					
						
							|  |  |  | 					   struct netlink_skb_parms *req); | 
					
						
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							|  |  |  | extern int			ip6_rt_addr_add(struct in6_addr *addr, | 
					
						
							|  |  |  | 						struct net_device *dev, | 
					
						
							|  |  |  | 						int anycast); | 
					
						
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							|  |  |  | extern int			ip6_rt_addr_del(struct in6_addr *addr, | 
					
						
							|  |  |  | 						struct net_device *dev); | 
					
						
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							|  |  |  | extern void			rt6_sndmsg(int type, struct in6_addr *dst, | 
					
						
							|  |  |  | 					   struct in6_addr *src, | 
					
						
							|  |  |  | 					   struct in6_addr *gw, | 
					
						
							|  |  |  | 					   struct net_device *dev,  | 
					
						
							|  |  |  | 					   int dstlen, int srclen, | 
					
						
							|  |  |  | 					   int metric, __u32 flags); | 
					
						
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							|  |  |  | extern struct rt6_info		*rt6_lookup(struct in6_addr *daddr, | 
					
						
							|  |  |  | 					    struct in6_addr *saddr, | 
					
						
							|  |  |  | 					    int oif, int flags); | 
					
						
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							|  |  |  | extern struct dst_entry *ndisc_dst_alloc(struct net_device *dev, | 
					
						
							|  |  |  | 					 struct neighbour *neigh, | 
					
						
							|  |  |  | 					 struct in6_addr *addr, | 
					
						
							|  |  |  | 					 int (*output)(struct sk_buff *)); | 
					
						
							|  |  |  | extern int ndisc_dst_gc(int *more); | 
					
						
							|  |  |  | extern void fib6_force_start_gc(void); | 
					
						
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							|  |  |  | extern struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev, | 
					
						
							|  |  |  | 					   const struct in6_addr *addr, | 
					
						
							|  |  |  | 					   int anycast); | 
					
						
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							|  |  |  | /*
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							|  |  |  |  *	support functions for ND | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  */ | 
					
						
							|  |  |  | extern struct rt6_info *	rt6_get_dflt_router(struct in6_addr *addr, | 
					
						
							|  |  |  | 						    struct net_device *dev); | 
					
						
							|  |  |  | extern struct rt6_info *	rt6_add_dflt_router(struct in6_addr *gwaddr, | 
					
						
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										 |  |  | 						    struct net_device *dev, | 
					
						
							|  |  |  | 						    unsigned int pref); | 
					
						
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							|  |  |  | extern void			rt6_purge_dflt_routers(void); | 
					
						
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										 |  |  | extern int			rt6_route_rcv(struct net_device *dev, | 
					
						
							|  |  |  | 					      u8 *opt, int len, | 
					
						
							|  |  |  | 					      struct in6_addr *gwaddr); | 
					
						
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										 |  |  | extern void			rt6_redirect(struct in6_addr *dest, | 
					
						
							|  |  |  | 					     struct in6_addr *saddr, | 
					
						
							|  |  |  | 					     struct neighbour *neigh, | 
					
						
							|  |  |  | 					     u8 *lladdr, | 
					
						
							|  |  |  | 					     int on_link); | 
					
						
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							|  |  |  | extern void			rt6_pmtu_discovery(struct in6_addr *daddr, | 
					
						
							|  |  |  | 						   struct in6_addr *saddr, | 
					
						
							|  |  |  | 						   struct net_device *dev, | 
					
						
							|  |  |  | 						   u32 pmtu); | 
					
						
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							|  |  |  | struct nlmsghdr; | 
					
						
							|  |  |  | struct netlink_callback; | 
					
						
							|  |  |  | extern int inet6_dump_fib(struct sk_buff *skb, struct netlink_callback *cb); | 
					
						
							|  |  |  | extern int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg); | 
					
						
							|  |  |  | extern int inet6_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg); | 
					
						
							|  |  |  | extern int inet6_rtm_getroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg); | 
					
						
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							|  |  |  | extern void rt6_ifdown(struct net_device *dev); | 
					
						
							|  |  |  | extern void rt6_mtu_change(struct net_device *dev, unsigned mtu); | 
					
						
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							|  |  |  | extern rwlock_t rt6_lock; | 
					
						
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							|  |  |  | /*
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							|  |  |  |  *	Store a destination cache entry in a socket | 
					
						
							|  |  |  |  */ | 
					
						
							|  |  |  | static inline void ip6_dst_store(struct sock *sk, struct dst_entry *dst, | 
					
						
							|  |  |  | 				     struct in6_addr *daddr) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  | 	struct ipv6_pinfo *np = inet6_sk(sk); | 
					
						
							|  |  |  | 	struct rt6_info *rt = (struct rt6_info *) dst; | 
					
						
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							|  |  |  | 	write_lock(&sk->sk_dst_lock); | 
					
						
							|  |  |  | 	__sk_dst_set(sk, dst); | 
					
						
							|  |  |  | 	np->daddr_cache = daddr; | 
					
						
							|  |  |  | 	np->dst_cookie = rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0; | 
					
						
							|  |  |  | 	write_unlock(&sk->sk_dst_lock); | 
					
						
							|  |  |  | } | 
					
						
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							|  |  |  | static inline int ipv6_unicast_destination(struct sk_buff *skb) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  | 	struct rt6_info *rt = (struct rt6_info *) skb->dst; | 
					
						
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							|  |  |  | 	return rt->rt6i_flags & RTF_LOCAL; | 
					
						
							|  |  |  | } | 
					
						
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							|  |  |  | #endif
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							|  |  |  | #endif
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