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 #include <net/sock.h> 15 #include <linux/tcp.h> 16 #include <linux/ip.h> 17 #include <linux/ipv6.h> 18 19 struct pol_chain { 20 int type; 21 int priority; 22 struct fib6_node *rules; 23 struct pol_chain *next; 24 }; 25 26 extern struct rt6_info ip6_null_entry; 27 28 extern int ip6_rt_gc_interval; 29 30 extern void ip6_route_input(struct sk_buff *skb); 31 32 extern struct dst_entry * ip6_route_output(struct sock *sk, 33 struct flowi *fl); 34 35 extern int ip6_route_me_harder(struct sk_buff *skb); 36 37 extern void ip6_route_init(void); 38 extern void ip6_route_cleanup(void); 39 40 extern int ipv6_route_ioctl(unsigned int cmd, void __user *arg); 41 42 extern int ip6_route_add(struct in6_rtmsg *rtmsg, 43 struct nlmsghdr *, 44 void *rtattr); 45 extern int ip6_ins_rt(struct rt6_info *, 46 struct nlmsghdr *, 47 void *rtattr); 48 extern int ip6_del_rt(struct rt6_info *, 49 struct nlmsghdr *, 50 void *rtattr); 51 52 extern int ip6_rt_addr_add(struct in6_addr *addr, 53 struct net_device *dev, 54 int anycast); 55 56 extern int ip6_rt_addr_del(struct in6_addr *addr, 57 struct net_device *dev); 58 59 extern void rt6_sndmsg(int type, struct in6_addr *dst, 60 struct in6_addr *src, 61 struct in6_addr *gw, 62 struct net_device *dev, 63 int dstlen, int srclen, 64 int metric, __u32 flags); 65 66 extern struct rt6_info *rt6_lookup(struct in6_addr *daddr, 67 struct in6_addr *saddr, 68 int oif, int flags); 69 70 extern struct dst_entry *ndisc_dst_alloc(struct net_device *dev, 71 struct neighbour *neigh, 72 struct in6_addr *addr, 73 int (*output)(struct sk_buff *)); 74 extern int ndisc_dst_gc(int *more); 75 extern void fib6_force_start_gc(void); 76 77 extern struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev, 78 const struct in6_addr *addr, 79 int anycast); 80 81 /* 82 * support functions for ND 83 * 84 */ 85 extern struct rt6_info * rt6_get_dflt_router(struct in6_addr *addr, 86 struct net_device *dev); 87 extern struct rt6_info * rt6_add_dflt_router(struct in6_addr *gwaddr, 88 struct net_device *dev); 89 90 extern void rt6_purge_dflt_routers(void); 91 92 extern void rt6_reset_dflt_pointer(struct rt6_info *rt); 93 94 extern void rt6_redirect(struct in6_addr *dest, 95 struct in6_addr *saddr, 96 struct neighbour *neigh, 97 u8 *lladdr, 98 int on_link); 99 100 extern void rt6_pmtu_discovery(struct in6_addr *daddr, 101 struct in6_addr *saddr, 102 struct net_device *dev, 103 u32 pmtu); 104 105 struct nlmsghdr; 106 struct netlink_callback; 107 extern int inet6_dump_fib(struct sk_buff *skb, struct netlink_callback *cb); 108 extern int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg); 109 extern int inet6_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg); 110 extern int inet6_rtm_getroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg); 111 112 extern void rt6_ifdown(struct net_device *dev); 113 extern void rt6_mtu_change(struct net_device *dev, unsigned mtu); 114 115 extern rwlock_t rt6_lock; 116 117 /* 118 * Store a destination cache entry in a socket 119 */ 120 static inline void ip6_dst_store(struct sock *sk, struct dst_entry *dst, 121 struct in6_addr *daddr) 122 { 123 struct ipv6_pinfo *np = inet6_sk(sk); 124 struct rt6_info *rt = (struct rt6_info *) dst; 125 126 write_lock(&sk->sk_dst_lock); 127 __sk_dst_set(sk, dst); 128 np->daddr_cache = daddr; 129 np->dst_cookie = rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0; 130 write_unlock(&sk->sk_dst_lock); 131 } 132 133 static inline int ipv6_unicast_destination(struct sk_buff *skb) 134 { 135 struct rt6_info *rt = (struct rt6_info *) skb->dst; 136 137 return rt->rt6i_flags & RTF_LOCAL; 138 } 139 140 #endif 141 #endif 142