Commit | Line | Data |
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1da177e4 LT |
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 | ||
70ceb4f5 YH |
10 | struct route_info { |
11 | __u8 type; | |
12 | __u8 length; | |
13 | __u8 prefix_len; | |
14 | #if defined(__BIG_ENDIAN_BITFIELD) | |
15 | __u8 reserved_h:3, | |
16 | route_pref:2, | |
17 | reserved_l:3; | |
18 | #elif defined(__LITTLE_ENDIAN_BITFIELD) | |
19 | __u8 reserved_l:3, | |
20 | route_pref:2, | |
21 | reserved_h:3; | |
22 | #endif | |
e69a4adc | 23 | __be32 lifetime; |
70ceb4f5 YH |
24 | __u8 prefix[0]; /* 0,8 or 16 */ |
25 | }; | |
26 | ||
1da177e4 LT |
27 | #ifdef __KERNEL__ |
28 | ||
29 | #include <net/flow.h> | |
30 | #include <net/ip6_fib.h> | |
31 | #include <net/sock.h> | |
1da177e4 LT |
32 | #include <linux/ip.h> |
33 | #include <linux/ipv6.h> | |
34 | ||
77d16f45 YH |
35 | #define RT6_LOOKUP_F_IFACE 0x1 |
36 | #define RT6_LOOKUP_F_REACHABLE 0x2 | |
37 | #define RT6_LOOKUP_F_HAS_SADDR 0x4 | |
38 | ||
1da177e4 LT |
39 | extern struct rt6_info ip6_null_entry; |
40 | ||
101367c2 TG |
41 | #ifdef CONFIG_IPV6_MULTIPLE_TABLES |
42 | extern struct rt6_info ip6_prohibit_entry; | |
43 | extern struct rt6_info ip6_blk_hole_entry; | |
44 | #endif | |
45 | ||
1da177e4 LT |
46 | extern int ip6_rt_gc_interval; |
47 | ||
48 | extern void ip6_route_input(struct sk_buff *skb); | |
49 | ||
50 | extern struct dst_entry * ip6_route_output(struct sock *sk, | |
51 | struct flowi *fl); | |
52 | ||
1da177e4 LT |
53 | extern void ip6_route_init(void); |
54 | extern void ip6_route_cleanup(void); | |
55 | ||
56 | extern int ipv6_route_ioctl(unsigned int cmd, void __user *arg); | |
57 | ||
86872cb5 | 58 | extern int ip6_route_add(struct fib6_config *cfg); |
40e22e8f | 59 | extern int ip6_ins_rt(struct rt6_info *); |
e0a1ad73 | 60 | extern int ip6_del_rt(struct rt6_info *); |
1da177e4 LT |
61 | |
62 | extern int ip6_rt_addr_add(struct in6_addr *addr, | |
63 | struct net_device *dev, | |
64 | int anycast); | |
65 | ||
66 | extern int ip6_rt_addr_del(struct in6_addr *addr, | |
67 | struct net_device *dev); | |
68 | ||
69 | extern void rt6_sndmsg(int type, struct in6_addr *dst, | |
70 | struct in6_addr *src, | |
71 | struct in6_addr *gw, | |
72 | struct net_device *dev, | |
73 | int dstlen, int srclen, | |
74 | int metric, __u32 flags); | |
75 | ||
76 | extern struct rt6_info *rt6_lookup(struct in6_addr *daddr, | |
77 | struct in6_addr *saddr, | |
78 | int oif, int flags); | |
79 | ||
80 | extern struct dst_entry *ndisc_dst_alloc(struct net_device *dev, | |
81 | struct neighbour *neigh, | |
82 | struct in6_addr *addr, | |
83 | int (*output)(struct sk_buff *)); | |
84 | extern int ndisc_dst_gc(int *more); | |
85 | extern void fib6_force_start_gc(void); | |
86 | ||
87 | extern struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev, | |
88 | const struct in6_addr *addr, | |
89 | int anycast); | |
90 | ||
91 | /* | |
92 | * support functions for ND | |
93 | * | |
94 | */ | |
95 | extern struct rt6_info * rt6_get_dflt_router(struct in6_addr *addr, | |
96 | struct net_device *dev); | |
97 | extern struct rt6_info * rt6_add_dflt_router(struct in6_addr *gwaddr, | |
ebacaaa0 YH |
98 | struct net_device *dev, |
99 | unsigned int pref); | |
1da177e4 LT |
100 | |
101 | extern void rt6_purge_dflt_routers(void); | |
102 | ||
70ceb4f5 YH |
103 | extern int rt6_route_rcv(struct net_device *dev, |
104 | u8 *opt, int len, | |
105 | struct in6_addr *gwaddr); | |
106 | ||
1da177e4 | 107 | extern void rt6_redirect(struct in6_addr *dest, |
5e032e32 | 108 | struct in6_addr *src, |
1da177e4 LT |
109 | struct in6_addr *saddr, |
110 | struct neighbour *neigh, | |
111 | u8 *lladdr, | |
112 | int on_link); | |
113 | ||
114 | extern void rt6_pmtu_discovery(struct in6_addr *daddr, | |
115 | struct in6_addr *saddr, | |
116 | struct net_device *dev, | |
117 | u32 pmtu); | |
118 | ||
1da177e4 | 119 | struct netlink_callback; |
1da177e4 | 120 | |
1b43af54 PM |
121 | struct rt6_rtnl_dump_arg |
122 | { | |
123 | struct sk_buff *skb; | |
124 | struct netlink_callback *cb; | |
125 | }; | |
126 | ||
127 | extern int rt6_dump_route(struct rt6_info *rt, void *p_arg); | |
1da177e4 LT |
128 | extern void rt6_ifdown(struct net_device *dev); |
129 | extern void rt6_mtu_change(struct net_device *dev, unsigned mtu); | |
130 | ||
131 | extern rwlock_t rt6_lock; | |
132 | ||
133 | /* | |
134 | * Store a destination cache entry in a socket | |
135 | */ | |
497c615a | 136 | static inline void __ip6_dst_store(struct sock *sk, struct dst_entry *dst, |
8e1ef0a9 | 137 | struct in6_addr *daddr, struct in6_addr *saddr) |
1da177e4 LT |
138 | { |
139 | struct ipv6_pinfo *np = inet6_sk(sk); | |
140 | struct rt6_info *rt = (struct rt6_info *) dst; | |
141 | ||
f83ef8c0 | 142 | sk_setup_caps(sk, dst); |
1da177e4 | 143 | np->daddr_cache = daddr; |
8e1ef0a9 YH |
144 | #ifdef CONFIG_IPV6_SUBTREES |
145 | np->saddr_cache = saddr; | |
146 | #endif | |
1da177e4 | 147 | np->dst_cookie = rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0; |
497c615a HX |
148 | } |
149 | ||
150 | static inline void ip6_dst_store(struct sock *sk, struct dst_entry *dst, | |
8e1ef0a9 | 151 | struct in6_addr *daddr, struct in6_addr *saddr) |
497c615a HX |
152 | { |
153 | write_lock(&sk->sk_dst_lock); | |
8e1ef0a9 | 154 | __ip6_dst_store(sk, dst, daddr, saddr); |
1da177e4 LT |
155 | write_unlock(&sk->sk_dst_lock); |
156 | } | |
157 | ||
158 | static inline int ipv6_unicast_destination(struct sk_buff *skb) | |
159 | { | |
160 | struct rt6_info *rt = (struct rt6_info *) skb->dst; | |
161 | ||
162 | return rt->rt6i_flags & RTF_LOCAL; | |
163 | } | |
164 | ||
165 | #endif | |
166 | #endif |