projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef _NET_IP6_ROUTE_H |
| 2 | #define _NET_IP6_ROUTE_H | |
| 3 | ||
| 1da177e4 LT |
4 | #define IP6_RT_PRIO_USER 1024 |
| 5 | #define IP6_RT_PRIO_ADDRCONF 256 | |
| 6 | #define IP6_RT_PRIO_KERN 512 | |
| 1da177e4 | 7 | |
| 70ceb4f5 YH |
8 | struct route_info { |
| 9 | __u8 type; | |
| 10 | __u8 length; | |
| 11 | __u8 prefix_len; | |
| 12 | #if defined(__BIG_ENDIAN_BITFIELD) | |
| 13 | __u8 reserved_h:3, | |
| 14 | route_pref:2, | |
| 15 | reserved_l:3; | |
| 16 | #elif defined(__LITTLE_ENDIAN_BITFIELD) | |
| 17 | __u8 reserved_l:3, | |
| 18 | route_pref:2, | |
| 19 | reserved_h:3; | |
| 20 | #endif | |
| e69a4adc | 21 | __be32 lifetime; |
| 70ceb4f5 YH |
22 | __u8 prefix[0]; /* 0,8 or 16 */ |
| 23 | }; | |
| 24 | ||
| 1da177e4 LT |
25 | #ifdef __KERNEL__ |
| 26 | ||
| 27 | #include <net/flow.h> | |
| 28 | #include <net/ip6_fib.h> | |
| 29 | #include <net/sock.h> | |
| 1da177e4 LT |
30 | #include <linux/ip.h> |
| 31 | #include <linux/ipv6.h> | |
| 32 | ||
| 7cbca67c YH |
33 | #define RT6_LOOKUP_F_IFACE 0x00000001 |
| 34 | #define RT6_LOOKUP_F_REACHABLE 0x00000002 | |
| 35 | #define RT6_LOOKUP_F_HAS_SADDR 0x00000004 | |
| 36 | #define RT6_LOOKUP_F_SRCPREF_TMP 0x00000008 | |
| 37 | #define RT6_LOOKUP_F_SRCPREF_PUBLIC 0x00000010 | |
| 38 | #define RT6_LOOKUP_F_SRCPREF_COA 0x00000020 | |
| 77d16f45 | 39 | |
| 1da177e4 | 40 | |
| 101367c2 | 41 | #ifdef CONFIG_IPV6_MULTIPLE_TABLES |
| bdb3289f DL |
42 | extern struct rt6_info *ip6_prohibit_entry; |
| 43 | extern struct rt6_info *ip6_blk_hole_entry; | |
| 101367c2 TG |
44 | #endif |
| 45 | ||
| 1da177e4 LT |
46 | extern void ip6_route_input(struct sk_buff *skb); |
| 47 | ||
| 4591db4f DL |
48 | extern struct dst_entry * ip6_route_output(struct net *net, |
| 49 | struct sock *sk, | |
| 1da177e4 LT |
50 | struct flowi *fl); |
| 51 | ||
| 433d49c3 | 52 | extern int ip6_route_init(void); |
| 1da177e4 LT |
53 | extern void ip6_route_cleanup(void); |
| 54 | ||
| 5578689a DL |
55 | extern int ipv6_route_ioctl(struct net *net, |
| 56 | unsigned int cmd, | |
| 57 | void __user *arg); | |
| 1da177e4 | 58 | |
| 86872cb5 | 59 | extern int ip6_route_add(struct fib6_config *cfg); |
| 40e22e8f | 60 | extern int ip6_ins_rt(struct rt6_info *); |
| e0a1ad73 | 61 | extern int ip6_del_rt(struct rt6_info *); |
| 1da177e4 | 62 | |
| 606a2b48 DL |
63 | extern struct rt6_info *rt6_lookup(struct net *net, |
| 64 | struct in6_addr *daddr, | |
| 1da177e4 LT |
65 | struct in6_addr *saddr, |
| 66 | int oif, int flags); | |
| 67 | ||
| 3b00944c | 68 | extern struct dst_entry *icmp6_dst_alloc(struct net_device *dev, |
| 1da177e4 | 69 | struct neighbour *neigh, |
| 3b00944c YH |
70 | struct in6_addr *addr); |
| 71 | extern int icmp6_dst_gc(int *more); | |
| 72 | ||
| 63152fc0 | 73 | extern void fib6_force_start_gc(struct net *net); |
| 1da177e4 LT |
74 | |
| 75 | extern struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev, | |
| 76 | const struct in6_addr *addr, | |
| 77 | int anycast); | |
| 78 | ||
| 6b75d090 YH |
79 | extern int ip6_dst_hoplimit(struct dst_entry *dst); |
| 80 | ||
| 1da177e4 LT |
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, | |
| ebacaaa0 YH |
88 | struct net_device *dev, |
| 89 | unsigned int pref); | |
| 1da177e4 | 90 | |
| 7b4da532 | 91 | extern void rt6_purge_dflt_routers(struct net *net); |
| 1da177e4 | 92 | |
| 70ceb4f5 YH |
93 | extern int rt6_route_rcv(struct net_device *dev, |
| 94 | u8 *opt, int len, | |
| 95 | struct in6_addr *gwaddr); | |
| 96 | ||
| 1da177e4 | 97 | extern void rt6_redirect(struct in6_addr *dest, |
| 5e032e32 | 98 | struct in6_addr *src, |
| 1da177e4 LT |
99 | struct in6_addr *saddr, |
| 100 | struct neighbour *neigh, | |
| 101 | u8 *lladdr, | |
| 102 | int on_link); | |
| 103 | ||
| 104 | extern void rt6_pmtu_discovery(struct in6_addr *daddr, | |
| 105 | struct in6_addr *saddr, | |
| 106 | struct net_device *dev, | |
| 107 | u32 pmtu); | |
| 108 | ||
| 1da177e4 | 109 | struct netlink_callback; |
| 1da177e4 | 110 | |
| 1b43af54 PM |
111 | struct rt6_rtnl_dump_arg |
| 112 | { | |
| 113 | struct sk_buff *skb; | |
| 114 | struct netlink_callback *cb; | |
| 115 | }; | |
| 116 | ||
| 117 | extern int rt6_dump_route(struct rt6_info *rt, void *p_arg); | |
| f3db4851 | 118 | extern void rt6_ifdown(struct net *net, struct net_device *dev); |
| 1da177e4 LT |
119 | extern void rt6_mtu_change(struct net_device *dev, unsigned mtu); |
| 120 | ||
| 121 | extern rwlock_t rt6_lock; | |
| 122 | ||
| 123 | /* | |
| 124 | * Store a destination cache entry in a socket | |
| 125 | */ | |
| 497c615a | 126 | static inline void __ip6_dst_store(struct sock *sk, struct dst_entry *dst, |
| 8e1ef0a9 | 127 | struct in6_addr *daddr, struct in6_addr *saddr) |
| 1da177e4 LT |
128 | { |
| 129 | struct ipv6_pinfo *np = inet6_sk(sk); | |
| 130 | struct rt6_info *rt = (struct rt6_info *) dst; | |
| 131 | ||
| f83ef8c0 | 132 | sk_setup_caps(sk, dst); |
| 1da177e4 | 133 | np->daddr_cache = daddr; |
| 8e1ef0a9 YH |
134 | #ifdef CONFIG_IPV6_SUBTREES |
| 135 | np->saddr_cache = saddr; | |
| 136 | #endif | |
| 1da177e4 | 137 | np->dst_cookie = rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0; |
| 497c615a HX |
138 | } |
| 139 | ||
| 140 | static inline void ip6_dst_store(struct sock *sk, struct dst_entry *dst, | |
| 8e1ef0a9 | 141 | struct in6_addr *daddr, struct in6_addr *saddr) |
| 497c615a HX |
142 | { |
| 143 | write_lock(&sk->sk_dst_lock); | |
| 8e1ef0a9 | 144 | __ip6_dst_store(sk, dst, daddr, saddr); |
| 1da177e4 LT |
145 | write_unlock(&sk->sk_dst_lock); |
| 146 | } | |
| 147 | ||
| 148 | static inline int ipv6_unicast_destination(struct sk_buff *skb) | |
| 149 | { | |
| 150 | struct rt6_info *rt = (struct rt6_info *) skb->dst; | |
| 151 | ||
| 152 | return rt->rt6i_flags & RTF_LOCAL; | |
| 153 | } | |
| 154 | ||
| 155 | #endif | |
| 156 | #endif |