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#ifndef _NET_IP6_ROUTE_H
#define _NET_IP6_ROUTE_H
#define IP6_RT_PRIO_USER 1024
#define IP6_RT_PRIO_ADDRCONF 256
#define IP6_RT_PRIO_KERN 512
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
__be32 lifetime;
__u8 prefix[0]; /* 0,8 or 16 */
};
#ifdef __KERNEL__
#include <net/flow.h>
#include <net/ip6_fib.h>
#include <net/sock.h>
#include <linux/ip.h>
#include <linux/ipv6.h>
#define RT6_LOOKUP_F_IFACE 0x1
#define RT6_LOOKUP_F_REACHABLE 0x2
#define RT6_LOOKUP_F_HAS_SADDR 0x4
extern struct rt6_info *ip6_null_entry;
#ifdef CONFIG_IPV6_MULTIPLE_TABLES
extern struct rt6_info *ip6_prohibit_entry;
extern struct rt6_info *ip6_blk_hole_entry;
#endif
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_init(void);
extern void ip6_route_cleanup(void);
extern int ipv6_route_ioctl(struct net *net,
unsigned int cmd,
void __user *arg);
extern int ip6_route_add(struct fib6_config *cfg);
extern int ip6_ins_rt(struct rt6_info *);
extern int ip6_del_rt(struct rt6_info *);
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 net *net,
struct in6_addr *daddr,
struct in6_addr *saddr,
int oif, int flags);
extern struct dst_entry *icmp6_dst_alloc(struct net_device *dev,
struct neighbour *neigh,
struct in6_addr *addr);
extern int icmp6_dst_gc(int *more);
extern void fib6_force_start_gc(struct net *net);
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,
struct net_device *dev,
unsigned int pref);
extern void rt6_purge_dflt_routers(struct net *net);
extern int rt6_route_rcv(struct net_device *dev,
u8 *opt, int len,
struct in6_addr *gwaddr);
extern void rt6_redirect(struct in6_addr *dest,
struct in6_addr *src,
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 netlink_callback;
struct rt6_rtnl_dump_arg
{
struct sk_buff *skb;
struct netlink_callback *cb;
};
extern int rt6_dump_route(struct rt6_info *rt, void *p_arg);
extern void rt6_ifdown(struct net *net, 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 in6_addr *saddr)
{
struct ipv6_pinfo *np = inet6_sk(sk);
struct rt6_info *rt = (struct rt6_info *) dst;
sk_setup_caps(sk, dst);
np->daddr_cache = daddr;
#ifdef CONFIG_IPV6_SUBTREES
np->saddr_cache = saddr;
#endif
np->dst_cookie = rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0;
}
static inline void ip6_dst_store(struct sock *sk, struct dst_entry *dst,
struct in6_addr *daddr, struct in6_addr *saddr)
{
write_lock(&sk->sk_dst_lock);
__ip6_dst_store(sk, dst, daddr, saddr);
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
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