#ifndef _NET_IP6_ROUTE_H #define _NET_IP6_ROUTE_H #define IP6_RT_PRIO_FW 16 #define IP6_RT_PRIO_USER 1024 #define IP6_RT_PRIO_ADDRCONF 256 #define IP6_RT_PRIO_KERN 512 #define IP6_RT_FLOW_MASK 0x00ff struct route_info { __u8 type; __u8 length; __u8 prefix_len; #if defined(__BIG_ENDIAN_BITFIELD) __u8 reserved_h:3, route_pref:2, reserved_l:3; #elif defined(__LITTLE_ENDIAN_BITFIELD) __u8 reserved_l:3, route_pref:2, reserved_h:3; #endif __be32 lifetime; __u8 prefix[0]; /* 0,8 or 16 */ }; #ifdef __KERNEL__ #include <net/flow.h> #include <net/ip6_fib.h> #include <net/sock.h> #include <linux/ip.h> #include <linux/ipv6.h> #define RT6_LOOKUP_F_IFACE 0x1 #define RT6_LOOKUP_F_REACHABLE 0x2 #define RT6_LOOKUP_F_HAS_SADDR 0x4 extern struct rt6_info ip6_null_entry; #ifdef CONFIG_IPV6_MULTIPLE_TABLES extern struct rt6_info ip6_prohibit_entry; extern struct rt6_info ip6_blk_hole_entry; #endif extern int ip6_rt_gc_interval; extern void ip6_route_input(struct sk_buff *skb); extern struct dst_entry * ip6_route_output(struct sock *sk, struct flowi *fl); extern void ip6_route_init(void); extern void ip6_route_cleanup(void); extern int ipv6_route_ioctl(unsigned int cmd, void __user *arg); extern int ip6_route_add(struct fib6_config *cfg); extern int ip6_ins_rt(struct rt6_info *); extern int ip6_del_rt(struct rt6_info *); extern int ip6_rt_addr_add(struct in6_addr *addr, struct net_device *dev, int anycast); extern int ip6_rt_addr_del(struct in6_addr *addr, struct net_device *dev); 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); extern struct rt6_info *rt6_lookup(struct in6_addr *daddr, struct in6_addr *saddr, int oif, int flags); 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); extern struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev, const struct in6_addr *addr, int anycast); /* * 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, struct net_device *dev, unsigned int pref); extern void rt6_purge_dflt_routers(void); extern int rt6_route_rcv(struct net_device *dev, u8 *opt, int len, struct in6_addr *gwaddr); extern void rt6_redirect(struct in6_addr *dest, struct in6_addr *src, struct in6_addr *saddr, struct neighbour *neigh, u8 *lladdr, int on_link); extern void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr, struct net_device *dev, u32 pmtu); struct netlink_callback; struct rt6_rtnl_dump_arg { struct sk_buff *skb; struct netlink_callback *cb; }; extern int rt6_dump_route(struct rt6_info *rt, void *p_arg); extern void rt6_ifdown(struct net_device *dev); extern void rt6_mtu_change(struct net_device *dev, unsigned mtu); extern rwlock_t rt6_lock; /* * 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 in6_addr *saddr) { struct ipv6_pinfo *np = inet6_sk(sk); struct rt6_info *rt = (struct rt6_info *) dst; sk_setup_caps(sk, dst); np->daddr_cache = daddr; #ifdef CONFIG_IPV6_SUBTREES np->saddr_cache = saddr; #endif np->dst_cookie = rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0; } static inline void ip6_dst_store(struct sock *sk, struct dst_entry *dst, struct in6_addr *daddr, struct in6_addr *saddr) { write_lock(&sk->sk_dst_lock); __ip6_dst_store(sk, dst, daddr, saddr); write_unlock(&sk->sk_dst_lock); } static inline int ipv6_unicast_destination(struct sk_buff *skb) { struct rt6_info *rt = (struct rt6_info *) skb->dst; return rt->rt6i_flags & RTF_LOCAL; } #endif #endif