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# ifndef _NET_IP6_ROUTE_H
# define _NET_IP6_ROUTE_H
# define IP6_RT_PRIO_FW 16
# define IP6_RT_PRIO_USER 1024
# define IP6_RT_PRIO_ADDRCONF 256
# define IP6_RT_PRIO_KERN 512
# define IP6_RT_FLOW_MASK 0x00ff
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struct route_info {
__u8 type ;
__u8 length ;
__u8 prefix_len ;
# if defined(__BIG_ENDIAN_BITFIELD)
__u8 reserved_h : 3 ,
route_pref : 2 ,
reserved_l : 3 ;
# elif defined(__LITTLE_ENDIAN_BITFIELD)
__u8 reserved_l : 3 ,
route_pref : 2 ,
reserved_h : 3 ;
# endif
__u32 lifetime ;
__u8 prefix [ 0 ] ; /* 0,8 or 16 */
} ;
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# ifdef __KERNEL__
# include <net/flow.h>
# include <net/ip6_fib.h>
# include <net/sock.h>
# include <linux/ip.h>
# include <linux/ipv6.h>
struct pol_chain {
int type ;
int priority ;
struct fib6_node * rules ;
struct pol_chain * next ;
} ;
extern struct rt6_info ip6_null_entry ;
extern int ip6_rt_gc_interval ;
extern void ip6_route_input ( struct sk_buff * skb ) ;
extern struct dst_entry * ip6_route_output ( struct sock * sk ,
struct flowi * fl ) ;
extern int ip6_route_me_harder ( struct sk_buff * skb ) ;
extern void ip6_route_init ( void ) ;
extern void ip6_route_cleanup ( void ) ;
extern int ipv6_route_ioctl ( unsigned int cmd , void __user * arg ) ;
extern int ip6_route_add ( struct in6_rtmsg * rtmsg ,
struct nlmsghdr * ,
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void * rtattr ,
struct netlink_skb_parms * req ) ;
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extern int ip6_ins_rt ( struct rt6_info * ,
struct nlmsghdr * ,
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void * rtattr ,
struct netlink_skb_parms * req ) ;
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extern int ip6_del_rt ( struct rt6_info * ,
struct nlmsghdr * ,
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void * rtattr ,
struct netlink_skb_parms * req ) ;
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extern int ip6_rt_addr_add ( struct in6_addr * addr ,
struct net_device * dev ,
int anycast ) ;
extern int ip6_rt_addr_del ( struct in6_addr * addr ,
struct net_device * dev ) ;
extern void rt6_sndmsg ( int type , struct in6_addr * dst ,
struct in6_addr * src ,
struct in6_addr * gw ,
struct net_device * dev ,
int dstlen , int srclen ,
int metric , __u32 flags ) ;
extern struct rt6_info * rt6_lookup ( struct in6_addr * daddr ,
struct in6_addr * saddr ,
int oif , int flags ) ;
extern struct dst_entry * ndisc_dst_alloc ( struct net_device * dev ,
struct neighbour * neigh ,
struct in6_addr * addr ,
int ( * output ) ( struct sk_buff * ) ) ;
extern int ndisc_dst_gc ( int * more ) ;
extern void fib6_force_start_gc ( void ) ;
extern struct rt6_info * addrconf_dst_alloc ( struct inet6_dev * idev ,
const struct in6_addr * addr ,
int anycast ) ;
/*
* support functions for ND
*
*/
extern struct rt6_info * rt6_get_dflt_router ( struct in6_addr * addr ,
struct net_device * dev ) ;
extern struct rt6_info * rt6_add_dflt_router ( struct in6_addr * gwaddr ,
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struct net_device * dev ,
unsigned int pref ) ;
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extern void rt6_purge_dflt_routers ( void ) ;
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extern int rt6_route_rcv ( struct net_device * dev ,
u8 * opt , int len ,
struct in6_addr * gwaddr ) ;
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extern void rt6_redirect ( struct in6_addr * dest ,
struct in6_addr * saddr ,
struct neighbour * neigh ,
u8 * lladdr ,
int on_link ) ;
extern void rt6_pmtu_discovery ( struct in6_addr * daddr ,
struct in6_addr * saddr ,
struct net_device * dev ,
u32 pmtu ) ;
struct nlmsghdr ;
struct netlink_callback ;
extern int inet6_dump_fib ( struct sk_buff * skb , struct netlink_callback * cb ) ;
extern int inet6_rtm_newroute ( struct sk_buff * skb , struct nlmsghdr * nlh , void * arg ) ;
extern int inet6_rtm_delroute ( struct sk_buff * skb , struct nlmsghdr * nlh , void * arg ) ;
extern int inet6_rtm_getroute ( struct sk_buff * skb , struct nlmsghdr * nlh , void * arg ) ;
extern void rt6_ifdown ( struct net_device * dev ) ;
extern void rt6_mtu_change ( struct net_device * dev , unsigned mtu ) ;
extern rwlock_t rt6_lock ;
/*
* Store a destination cache entry in a socket
*/
static inline void ip6_dst_store ( struct sock * sk , struct dst_entry * dst ,
struct in6_addr * daddr )
{
struct ipv6_pinfo * np = inet6_sk ( sk ) ;
struct rt6_info * rt = ( struct rt6_info * ) dst ;
write_lock ( & sk - > sk_dst_lock ) ;
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sk_setup_caps ( sk , dst ) ;
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np - > daddr_cache = daddr ;
np - > dst_cookie = rt - > rt6i_node ? rt - > rt6i_node - > fn_sernum : 0 ;
write_unlock ( & sk - > sk_dst_lock ) ;
}
static inline int ipv6_unicast_destination ( struct sk_buff * skb )
{
struct rt6_info * rt = ( struct rt6_info * ) skb - > dst ;
return rt - > rt6i_flags & RTF_LOCAL ;
}
# endif
# endif