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/ip.h> 16 #include <linux/ipv6.h> 17 18 struct pol_chain { 19 int type; 20 int priority; 21 struct fib6_node *rules; 22 struct pol_chain *next; 23 }; 24 25 extern struct rt6_info ip6_null_entry; 26 27 extern int ip6_rt_gc_interval; 28 29 extern void ip6_route_input(struct sk_buff *skb); 30 31 extern struct dst_entry * ip6_route_output(struct sock *sk, 32 struct flowi *fl); 33 34 extern int ip6_route_me_harder(struct sk_buff *skb); 35 36 extern void ip6_route_init(void); 37 extern void ip6_route_cleanup(void); 38 39 extern int ipv6_route_ioctl(unsigned int cmd, void __user *arg); 40 41 extern int ip6_route_add(struct in6_rtmsg *rtmsg, 42 struct nlmsghdr *, 43 void *rtattr, 44 struct netlink_skb_parms *req); 45 extern int ip6_ins_rt(struct rt6_info *, 46 struct nlmsghdr *, 47 void *rtattr, 48 struct netlink_skb_parms *req); 49 extern int ip6_del_rt(struct rt6_info *, 50 struct nlmsghdr *, 51 void *rtattr, 52 struct netlink_skb_parms *req); 53 54 extern int ip6_rt_addr_add(struct in6_addr *addr, 55 struct net_device *dev, 56 int anycast); 57 58 extern int ip6_rt_addr_del(struct in6_addr *addr, 59 struct net_device *dev); 60 61 extern void rt6_sndmsg(int type, struct in6_addr *dst, 62 struct in6_addr *src, 63 struct in6_addr *gw, 64 struct net_device *dev, 65 int dstlen, int srclen, 66 int metric, __u32 flags); 67 68 extern struct rt6_info *rt6_lookup(struct in6_addr *daddr, 69 struct in6_addr *saddr, 70 int oif, int flags); 71 72 extern struct dst_entry *ndisc_dst_alloc(struct net_device *dev, 73 struct neighbour *neigh, 74 struct in6_addr *addr, 75 int (*output)(struct sk_buff *)); 76 extern int ndisc_dst_gc(int *more); 77 extern void fib6_force_start_gc(void); 78 79 extern struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev, 80 const struct in6_addr *addr, 81 int anycast); 82 83 /* 84 * support functions for ND 85 * 86 */ 87 extern struct rt6_info * rt6_get_dflt_router(struct in6_addr *addr, 88 struct net_device *dev); 89 extern struct rt6_info * rt6_add_dflt_router(struct in6_addr *gwaddr, 90 struct net_device *dev); 91 92 extern void rt6_purge_dflt_routers(void); 93 94 extern void rt6_reset_dflt_pointer(struct rt6_info *rt); 95 96 extern void rt6_redirect(struct in6_addr *dest, 97 struct in6_addr *saddr, 98 struct neighbour *neigh, 99 u8 *lladdr, 100 int on_link); 101 102 extern void rt6_pmtu_discovery(struct in6_addr *daddr, 103 struct in6_addr *saddr, 104 struct net_device *dev, 105 u32 pmtu); 106 107 struct nlmsghdr; 108 struct netlink_callback; 109 extern int inet6_dump_fib(struct sk_buff *skb, struct netlink_callback *cb); 110 extern int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg); 111 extern int inet6_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg); 112 extern int inet6_rtm_getroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg); 113 114 extern void rt6_ifdown(struct net_device *dev); 115 extern void rt6_mtu_change(struct net_device *dev, unsigned mtu); 116 117 extern rwlock_t rt6_lock; 118 119 /* 120 * Store a destination cache entry in a socket 121 */ 122 static inline void ip6_dst_store(struct sock *sk, struct dst_entry *dst, 123 struct in6_addr *daddr) 124 { 125 struct ipv6_pinfo *np = inet6_sk(sk); 126 struct rt6_info *rt = (struct rt6_info *) dst; 127 128 write_lock(&sk->sk_dst_lock); 129 __sk_dst_set(sk, dst); 130 np->daddr_cache = daddr; 131 np->dst_cookie = rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0; 132 write_unlock(&sk->sk_dst_lock); 133 } 134 135 static inline int ipv6_unicast_destination(struct sk_buff *skb) 136 { 137 struct rt6_info *rt = (struct rt6_info *) skb->dst; 138 139 return rt->rt6i_flags & RTF_LOCAL; 140 } 141 142 #endif 143 #endif 144