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 struct netlink_skb_parms *req); 46 extern int ip6_ins_rt(struct rt6_info *, 47 struct nlmsghdr *, 48 void *rtattr, 49 struct netlink_skb_parms *req); 50 extern int ip6_del_rt(struct rt6_info *, 51 struct nlmsghdr *, 52 void *rtattr, 53 struct netlink_skb_parms *req); 54 55 extern int ip6_rt_addr_add(struct in6_addr *addr, 56 struct net_device *dev, 57 int anycast); 58 59 extern int ip6_rt_addr_del(struct in6_addr *addr, 60 struct net_device *dev); 61 62 extern void rt6_sndmsg(int type, struct in6_addr *dst, 63 struct in6_addr *src, 64 struct in6_addr *gw, 65 struct net_device *dev, 66 int dstlen, int srclen, 67 int metric, __u32 flags); 68 69 extern struct rt6_info *rt6_lookup(struct in6_addr *daddr, 70 struct in6_addr *saddr, 71 int oif, int flags); 72 73 extern struct dst_entry *ndisc_dst_alloc(struct net_device *dev, 74 struct neighbour *neigh, 75 struct in6_addr *addr, 76 int (*output)(struct sk_buff *)); 77 extern int ndisc_dst_gc(int *more); 78 extern void fib6_force_start_gc(void); 79 80 extern struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev, 81 const struct in6_addr *addr, 82 int anycast); 83 84 /* 85 * support functions for ND 86 * 87 */ 88 extern struct rt6_info * rt6_get_dflt_router(struct in6_addr *addr, 89 struct net_device *dev); 90 extern struct rt6_info * rt6_add_dflt_router(struct in6_addr *gwaddr, 91 struct net_device *dev); 92 93 extern void rt6_purge_dflt_routers(void); 94 95 extern void rt6_reset_dflt_pointer(struct rt6_info *rt); 96 97 extern void rt6_redirect(struct in6_addr *dest, 98 struct in6_addr *saddr, 99 struct neighbour *neigh, 100 u8 *lladdr, 101 int on_link); 102 103 extern void rt6_pmtu_discovery(struct in6_addr *daddr, 104 struct in6_addr *saddr, 105 struct net_device *dev, 106 u32 pmtu); 107 108 struct nlmsghdr; 109 struct netlink_callback; 110 extern int inet6_dump_fib(struct sk_buff *skb, struct netlink_callback *cb); 111 extern int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg); 112 extern int inet6_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg); 113 extern int inet6_rtm_getroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg); 114 115 extern void rt6_ifdown(struct net_device *dev); 116 extern void rt6_mtu_change(struct net_device *dev, unsigned mtu); 117 118 extern rwlock_t rt6_lock; 119 120 /* 121 * Store a destination cache entry in a socket 122 */ 123 static inline void ip6_dst_store(struct sock *sk, struct dst_entry *dst, 124 struct in6_addr *daddr) 125 { 126 struct ipv6_pinfo *np = inet6_sk(sk); 127 struct rt6_info *rt = (struct rt6_info *) dst; 128 129 write_lock(&sk->sk_dst_lock); 130 __sk_dst_set(sk, dst); 131 np->daddr_cache = daddr; 132 np->dst_cookie = rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0; 133 write_unlock(&sk->sk_dst_lock); 134 } 135 136 static inline int ipv6_unicast_destination(struct sk_buff *skb) 137 { 138 struct rt6_info *rt = (struct rt6_info *) skb->dst; 139 140 return rt->rt6i_flags & RTF_LOCAL; 141 } 142 143 #endif 144 #endif 145