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git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blob - include/net/ip6_route.h
1 #ifndef _NET_IP6_ROUTE_H
2 #define _NET_IP6_ROUTE_H
4 #define IP6_RT_PRIO_USER 1024
5 #define IP6_RT_PRIO_ADDRCONF 256
6 #define IP6_RT_PRIO_KERN 512
12 #if defined(__BIG_ENDIAN_BITFIELD)
16 #elif defined(__LITTLE_ENDIAN_BITFIELD)
22 __u8 prefix
[0]; /* 0,8 or 16 */
28 #include <net/ip6_fib.h>
31 #include <linux/ipv6.h>
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
41 extern void ip6_route_input(struct sk_buff
*skb
);
43 extern struct dst_entry
* ip6_route_output(struct net
*net
,
47 extern int ip6_route_init(void);
48 extern void ip6_route_cleanup(void);
50 extern int ipv6_route_ioctl(struct net
*net
,
54 extern int ip6_route_add(struct fib6_config
*cfg
);
55 extern int ip6_ins_rt(struct rt6_info
*);
56 extern int ip6_del_rt(struct rt6_info
*);
58 extern struct rt6_info
*rt6_lookup(struct net
*net
,
59 const struct in6_addr
*daddr
,
60 const struct in6_addr
*saddr
,
63 extern struct dst_entry
*icmp6_dst_alloc(struct net_device
*dev
,
64 struct neighbour
*neigh
,
65 const struct in6_addr
*addr
);
66 extern int icmp6_dst_gc(void);
68 extern void fib6_force_start_gc(struct net
*net
);
70 extern struct rt6_info
*addrconf_dst_alloc(struct inet6_dev
*idev
,
71 const struct in6_addr
*addr
,
74 extern int ip6_dst_hoplimit(struct dst_entry
*dst
);
77 * support functions for ND
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
,
83 struct net_device
*dev
,
86 extern void rt6_purge_dflt_routers(struct net
*net
);
88 extern int rt6_route_rcv(struct net_device
*dev
,
90 struct in6_addr
*gwaddr
);
92 extern void rt6_redirect(struct in6_addr
*dest
,
94 struct in6_addr
*saddr
,
95 struct neighbour
*neigh
,
99 extern void rt6_pmtu_discovery(struct in6_addr
*daddr
,
100 struct in6_addr
*saddr
,
101 struct net_device
*dev
,
104 struct netlink_callback
;
106 struct rt6_rtnl_dump_arg
109 struct netlink_callback
*cb
;
113 extern int rt6_dump_route(struct rt6_info
*rt
, void *p_arg
);
114 extern void rt6_ifdown(struct net
*net
, struct net_device
*dev
);
115 extern void rt6_mtu_change(struct net_device
*dev
, unsigned mtu
);
119 * Store a destination cache entry in a socket
121 static inline void __ip6_dst_store(struct sock
*sk
, struct dst_entry
*dst
,
122 struct in6_addr
*daddr
, struct in6_addr
*saddr
)
124 struct ipv6_pinfo
*np
= inet6_sk(sk
);
125 struct rt6_info
*rt
= (struct rt6_info
*) dst
;
127 sk_setup_caps(sk
, dst
);
128 np
->daddr_cache
= daddr
;
129 #ifdef CONFIG_IPV6_SUBTREES
130 np
->saddr_cache
= saddr
;
132 np
->dst_cookie
= rt
->rt6i_node
? rt
->rt6i_node
->fn_sernum
: 0;
135 static inline void ip6_dst_store(struct sock
*sk
, struct dst_entry
*dst
,
136 struct in6_addr
*daddr
, struct in6_addr
*saddr
)
138 write_lock(&sk
->sk_dst_lock
);
139 __ip6_dst_store(sk
, dst
, daddr
, saddr
);
140 write_unlock(&sk
->sk_dst_lock
);
143 static inline int ipv6_unicast_destination(struct sk_buff
*skb
)
145 struct rt6_info
*rt
= (struct rt6_info
*) skb_dst(skb
);
147 return rt
->rt6i_flags
& RTF_LOCAL
;