Commit | Line | Data |
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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 | |
1da177e4 LT |
41 | extern void ip6_route_input(struct sk_buff *skb); |
42 | ||
4591db4f DL |
43 | extern struct dst_entry * ip6_route_output(struct net *net, |
44 | struct sock *sk, | |
1da177e4 LT |
45 | struct flowi *fl); |
46 | ||
433d49c3 | 47 | extern int ip6_route_init(void); |
1da177e4 LT |
48 | extern void ip6_route_cleanup(void); |
49 | ||
5578689a DL |
50 | extern int ipv6_route_ioctl(struct net *net, |
51 | unsigned int cmd, | |
52 | void __user *arg); | |
1da177e4 | 53 | |
86872cb5 | 54 | extern int ip6_route_add(struct fib6_config *cfg); |
40e22e8f | 55 | extern int ip6_ins_rt(struct rt6_info *); |
e0a1ad73 | 56 | extern int ip6_del_rt(struct rt6_info *); |
1da177e4 | 57 | |
606a2b48 | 58 | extern struct rt6_info *rt6_lookup(struct net *net, |
9acd9f3a YH |
59 | const struct in6_addr *daddr, |
60 | const struct in6_addr *saddr, | |
1da177e4 LT |
61 | int oif, int flags); |
62 | ||
3b00944c | 63 | extern struct dst_entry *icmp6_dst_alloc(struct net_device *dev, |
1da177e4 | 64 | struct neighbour *neigh, |
9acd9f3a | 65 | const struct in6_addr *addr); |
3d0f24a7 | 66 | extern int icmp6_dst_gc(void); |
3b00944c | 67 | |
63152fc0 | 68 | extern void fib6_force_start_gc(struct net *net); |
1da177e4 LT |
69 | |
70 | extern struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev, | |
71 | const struct in6_addr *addr, | |
72 | int anycast); | |
73 | ||
6b75d090 YH |
74 | extern int ip6_dst_hoplimit(struct dst_entry *dst); |
75 | ||
1da177e4 LT |
76 | /* |
77 | * support functions for ND | |
78 | * | |
79 | */ | |
80 | extern struct rt6_info * rt6_get_dflt_router(struct in6_addr *addr, | |
81 | struct net_device *dev); | |
82 | extern struct rt6_info * rt6_add_dflt_router(struct in6_addr *gwaddr, | |
ebacaaa0 YH |
83 | struct net_device *dev, |
84 | unsigned int pref); | |
1da177e4 | 85 | |
7b4da532 | 86 | extern void rt6_purge_dflt_routers(struct net *net); |
1da177e4 | 87 | |
70ceb4f5 YH |
88 | extern int rt6_route_rcv(struct net_device *dev, |
89 | u8 *opt, int len, | |
90 | struct in6_addr *gwaddr); | |
91 | ||
1da177e4 | 92 | extern void rt6_redirect(struct in6_addr *dest, |
5e032e32 | 93 | struct in6_addr *src, |
1da177e4 LT |
94 | struct in6_addr *saddr, |
95 | struct neighbour *neigh, | |
96 | u8 *lladdr, | |
97 | int on_link); | |
98 | ||
99 | extern void rt6_pmtu_discovery(struct in6_addr *daddr, | |
100 | struct in6_addr *saddr, | |
101 | struct net_device *dev, | |
102 | u32 pmtu); | |
103 | ||
1da177e4 | 104 | struct netlink_callback; |
1da177e4 | 105 | |
fd2c3ef7 | 106 | struct rt6_rtnl_dump_arg { |
1b43af54 PM |
107 | struct sk_buff *skb; |
108 | struct netlink_callback *cb; | |
191cd582 | 109 | struct net *net; |
1b43af54 PM |
110 | }; |
111 | ||
112 | extern int rt6_dump_route(struct rt6_info *rt, void *p_arg); | |
f3db4851 | 113 | extern void rt6_ifdown(struct net *net, struct net_device *dev); |
1da177e4 LT |
114 | extern void rt6_mtu_change(struct net_device *dev, unsigned mtu); |
115 | ||
1da177e4 LT |
116 | |
117 | /* | |
118 | * Store a destination cache entry in a socket | |
119 | */ | |
497c615a | 120 | static inline void __ip6_dst_store(struct sock *sk, struct dst_entry *dst, |
8e1ef0a9 | 121 | struct in6_addr *daddr, struct in6_addr *saddr) |
1da177e4 LT |
122 | { |
123 | struct ipv6_pinfo *np = inet6_sk(sk); | |
124 | struct rt6_info *rt = (struct rt6_info *) dst; | |
125 | ||
f83ef8c0 | 126 | sk_setup_caps(sk, dst); |
1da177e4 | 127 | np->daddr_cache = daddr; |
8e1ef0a9 YH |
128 | #ifdef CONFIG_IPV6_SUBTREES |
129 | np->saddr_cache = saddr; | |
130 | #endif | |
1da177e4 | 131 | np->dst_cookie = rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0; |
497c615a HX |
132 | } |
133 | ||
134 | static inline void ip6_dst_store(struct sock *sk, struct dst_entry *dst, | |
8e1ef0a9 | 135 | struct in6_addr *daddr, struct in6_addr *saddr) |
497c615a HX |
136 | { |
137 | write_lock(&sk->sk_dst_lock); | |
8e1ef0a9 | 138 | __ip6_dst_store(sk, dst, daddr, saddr); |
1da177e4 LT |
139 | write_unlock(&sk->sk_dst_lock); |
140 | } | |
141 | ||
142 | static inline int ipv6_unicast_destination(struct sk_buff *skb) | |
143 | { | |
adf30907 | 144 | struct rt6_info *rt = (struct rt6_info *) skb_dst(skb); |
1da177e4 LT |
145 | |
146 | return rt->rt6i_flags & RTF_LOCAL; | |
147 | } | |
148 | ||
149 | #endif | |
150 | #endif |