1 #ifndef _NET_IP6_ROUTE_H
2 #define _NET_IP6_ROUTE_H
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
14 #if defined(__BIG_ENDIAN_BITFIELD)
18 #elif defined(__LITTLE_ENDIAN_BITFIELD)
24 __u8 prefix
[0]; /* 0,8 or 16 */
30 #include <net/ip6_fib.h>
33 #include <linux/ipv6.h>
35 #define RT6_LOOKUP_F_IFACE 0x1
36 #define RT6_LOOKUP_F_REACHABLE 0x2
37 #define RT6_LOOKUP_F_HAS_SADDR 0x4
42 struct fib6_node
*rules
;
43 struct pol_chain
*next
;
46 extern struct rt6_info ip6_null_entry
;
48 #ifdef CONFIG_IPV6_MULTIPLE_TABLES
49 extern struct rt6_info ip6_prohibit_entry
;
50 extern struct rt6_info ip6_blk_hole_entry
;
53 extern int ip6_rt_gc_interval
;
55 extern void ip6_route_input(struct sk_buff
*skb
);
57 extern struct dst_entry
* ip6_route_output(struct sock
*sk
,
60 extern int ip6_route_me_harder(struct sk_buff
*skb
);
62 extern void ip6_route_init(void);
63 extern void ip6_route_cleanup(void);
65 extern int ipv6_route_ioctl(unsigned int cmd
, void __user
*arg
);
67 extern int ip6_route_add(struct fib6_config
*cfg
);
68 extern int ip6_ins_rt(struct rt6_info
*);
69 extern int ip6_del_rt(struct rt6_info
*);
71 extern int ip6_rt_addr_add(struct in6_addr
*addr
,
72 struct net_device
*dev
,
75 extern int ip6_rt_addr_del(struct in6_addr
*addr
,
76 struct net_device
*dev
);
78 extern void rt6_sndmsg(int type
, struct in6_addr
*dst
,
81 struct net_device
*dev
,
82 int dstlen
, int srclen
,
83 int metric
, __u32 flags
);
85 extern struct rt6_info
*rt6_lookup(struct in6_addr
*daddr
,
86 struct in6_addr
*saddr
,
89 extern struct dst_entry
*ndisc_dst_alloc(struct net_device
*dev
,
90 struct neighbour
*neigh
,
91 struct in6_addr
*addr
,
92 int (*output
)(struct sk_buff
*));
93 extern int ndisc_dst_gc(int *more
);
94 extern void fib6_force_start_gc(void);
96 extern struct rt6_info
*addrconf_dst_alloc(struct inet6_dev
*idev
,
97 const struct in6_addr
*addr
,
101 * support functions for ND
104 extern struct rt6_info
* rt6_get_dflt_router(struct in6_addr
*addr
,
105 struct net_device
*dev
);
106 extern struct rt6_info
* rt6_add_dflt_router(struct in6_addr
*gwaddr
,
107 struct net_device
*dev
,
110 extern void rt6_purge_dflt_routers(void);
112 extern int rt6_route_rcv(struct net_device
*dev
,
114 struct in6_addr
*gwaddr
);
116 extern void rt6_redirect(struct in6_addr
*dest
,
117 struct in6_addr
*src
,
118 struct in6_addr
*saddr
,
119 struct neighbour
*neigh
,
123 extern void rt6_pmtu_discovery(struct in6_addr
*daddr
,
124 struct in6_addr
*saddr
,
125 struct net_device
*dev
,
129 struct netlink_callback
;
130 extern int inet6_dump_fib(struct sk_buff
*skb
, struct netlink_callback
*cb
);
131 extern int inet6_rtm_newroute(struct sk_buff
*skb
, struct nlmsghdr
* nlh
, void *arg
);
132 extern int inet6_rtm_delroute(struct sk_buff
*skb
, struct nlmsghdr
* nlh
, void *arg
);
133 extern int inet6_rtm_getroute(struct sk_buff
*skb
, struct nlmsghdr
* nlh
, void *arg
);
135 struct rt6_rtnl_dump_arg
138 struct netlink_callback
*cb
;
141 extern int rt6_dump_route(struct rt6_info
*rt
, void *p_arg
);
142 extern void rt6_ifdown(struct net_device
*dev
);
143 extern void rt6_mtu_change(struct net_device
*dev
, unsigned mtu
);
145 extern rwlock_t rt6_lock
;
148 * Store a destination cache entry in a socket
150 static inline void __ip6_dst_store(struct sock
*sk
, struct dst_entry
*dst
,
151 struct in6_addr
*daddr
, struct in6_addr
*saddr
)
153 struct ipv6_pinfo
*np
= inet6_sk(sk
);
154 struct rt6_info
*rt
= (struct rt6_info
*) dst
;
156 sk_setup_caps(sk
, dst
);
157 np
->daddr_cache
= daddr
;
158 #ifdef CONFIG_IPV6_SUBTREES
159 np
->saddr_cache
= saddr
;
161 np
->dst_cookie
= rt
->rt6i_node
? rt
->rt6i_node
->fn_sernum
: 0;
164 static inline void ip6_dst_store(struct sock
*sk
, struct dst_entry
*dst
,
165 struct in6_addr
*daddr
, struct in6_addr
*saddr
)
167 write_lock(&sk
->sk_dst_lock
);
168 __ip6_dst_store(sk
, dst
, daddr
, saddr
);
169 write_unlock(&sk
->sk_dst_lock
);
172 static inline int ipv6_unicast_destination(struct sk_buff
*skb
)
174 struct rt6_info
*rt
= (struct rt6_info
*) skb
->dst
;
176 return rt
->rt6i_flags
& RTF_LOCAL
;