#ifndef _ADDRCONF_H#define _ADDRCONF_H #define RETRANS_TIMER	HZ #define MAX_RTR_SOLICITATIONS		3#define RTR_SOLICITATION_INTERVAL	(4*HZ) #define MIN_VALID_LIFETIME		(2*3600)	/* 2 hours */ #define TEMP_VALID_LIFETIME		(7*86400)#define TEMP_PREFERRED_LIFETIME		(86400)#define REGEN_MAX_RETRY			(5)#define MAX_DESYNC_FACTOR		(600) #define ADDR_CHECK_FREQUENCY		(120*HZ) #define IPV6_MAX_ADDRESSES		16 #include <linux/in6.h> struct prefix_info {	__u8			type;	__u8			length;	__u8			prefix_len; #if defined(__BIG_ENDIAN_BITFIELD)	__u8			onlink : 1,			 	autoconf : 1,				reserved : 6;#elif defined(__LITTLE_ENDIAN_BITFIELD)	__u8			reserved : 6,				autoconf : 1,				onlink : 1;#else#error "Please fix <asm/byteorder.h>"#endif	__be32			valid;	__be32			prefered;	__be32			reserved2; 	struct in6_addr		prefix;};  #ifdef __KERNEL__ #include <linux/netdevice.h>#include <net/if_inet6.h>#include <net/ipv6.h> #define IN6_ADDR_HSIZE		16 extern int			addrconf_init(void);extern void			addrconf_cleanup(void); extern int			addrconf_add_ifaddr(void __user *arg);extern int			addrconf_del_ifaddr(void __user *arg);extern int			addrconf_set_dstaddr(void __user *arg); extern int			ipv6_chk_addr(struct in6_addr *addr,					      struct net_device *dev,					      int strict);#ifdef CONFIG_IPV6_MIP6extern int			ipv6_chk_home_addr(struct in6_addr *addr);#endifextern struct inet6_ifaddr *	ipv6_get_ifaddr(struct in6_addr *addr,						struct net_device *dev,						int strict);extern int			ipv6_get_saddr(struct dst_entry *dst, 					       struct in6_addr *daddr,					       struct in6_addr *saddr);extern int			ipv6_dev_get_saddr(struct net_device *dev, 					       struct in6_addr *daddr,					       struct in6_addr *saddr);extern int			ipv6_get_lladdr(struct net_device *dev, struct in6_addr *);extern int			ipv6_rcv_saddr_equal(const struct sock *sk, 						      const struct sock *sk2);extern void			addrconf_join_solict(struct net_device *dev,					struct in6_addr *addr);extern void			addrconf_leave_solict(struct inet6_dev *idev,					struct in6_addr *addr); /* *	multicast prototypes (mcast.c) */extern int ipv6_sock_mc_join(struct sock *sk, int ifindex, 		  struct in6_addr *addr);extern int ipv6_sock_mc_drop(struct sock *sk, int ifindex, 		  struct in6_addr *addr);extern void ipv6_sock_mc_close(struct sock *sk);extern int inet6_mc_check(struct sock *sk, struct in6_addr *mc_addr,		struct in6_addr *src_addr); extern int ipv6_dev_mc_inc(struct net_device *dev, struct in6_addr *addr);extern int __ipv6_dev_mc_dec(struct inet6_dev *idev, struct in6_addr *addr);extern int ipv6_dev_mc_dec(struct net_device *dev, struct in6_addr *addr);extern void ipv6_mc_up(struct inet6_dev *idev);extern void ipv6_mc_down(struct inet6_dev *idev);extern void ipv6_mc_init_dev(struct inet6_dev *idev);extern void ipv6_mc_destroy_dev(struct inet6_dev *idev);extern void addrconf_dad_failure(struct inet6_ifaddr *ifp); extern int ipv6_chk_mcast_addr(struct net_device *dev, struct in6_addr *group,		struct in6_addr *src_addr);extern int ipv6_is_mld(struct sk_buff *skb, int nexthdr); extern void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len); extern int ipv6_get_hoplimit(struct net_device *dev); /* *	anycast prototypes (anycast.c) */extern int ipv6_sock_ac_join(struct sock *sk,int ifindex,struct in6_addr *addr);extern int ipv6_sock_ac_drop(struct sock *sk,int ifindex,struct in6_addr *addr);extern void ipv6_sock_ac_close(struct sock *sk);extern int inet6_ac_check(struct sock *sk, struct in6_addr *addr, int ifindex); extern int ipv6_dev_ac_inc(struct net_device *dev, struct in6_addr *addr);extern int __ipv6_dev_ac_dec(struct inet6_dev *idev, struct in6_addr *addr);extern int ipv6_chk_acast_addr(struct net_device *dev, struct in6_addr *addr);  /* Device notifier */extern int register_inet6addr_notifier(struct notifier_block *nb);extern int unregister_inet6addr_notifier(struct notifier_block *nb); static inline struct inet6_dev *__in6_dev_get(struct net_device *dev){	return rcu_dereference(dev->ip6_ptr);} static inline struct inet6_dev *in6_dev_get(struct net_device *dev){	struct inet6_dev *idev = NULL;	rcu_read_lock();	idev = __in6_dev_get(dev);	if (idev)		atomic_inc(&idev->refcnt);	rcu_read_unlock();	return idev;} extern void in6_dev_finish_destroy(struct inet6_dev *idev); static inline voidin6_dev_put(struct inet6_dev *idev){	if (atomic_dec_and_test(&idev->refcnt))		in6_dev_finish_destroy(idev);} #define __in6_dev_put(idev)  atomic_dec(&(idev)->refcnt)#define in6_dev_hold(idev)   atomic_inc(&(idev)->refcnt)  extern void inet6_ifa_finish_destroy(struct inet6_ifaddr *ifp); static inline void in6_ifa_put(struct inet6_ifaddr *ifp){	if (atomic_dec_and_test(&ifp->refcnt))		inet6_ifa_finish_destroy(ifp);} #define __in6_ifa_put(ifp)	atomic_dec(&(ifp)->refcnt)#define in6_ifa_hold(ifp)	atomic_inc(&(ifp)->refcnt)  extern void			addrconf_forwarding_on(void);/* *	Hash function taken from net_alias.c */ static __inline__ u8 ipv6_addr_hash(const struct in6_addr *addr){		__u32 word; 	/* 	 * We perform the hash function over the last 64 bits of the address	 * This will include the IEEE address token on links that support it.	 */ 	word = (__force u32)(addr->s6_addr32[2] ^ addr->s6_addr32[3]);	word ^= (word >> 16);	word ^= (word >> 8); 	return ((word ^ (word >> 4)) & 0x0f);} /* *	compute link-local solicited-node multicast address */ static inline void addrconf_addr_solict_mult(const struct in6_addr *addr,					     struct in6_addr *solicited){	ipv6_addr_set(solicited,		      __constant_htonl(0xFF020000), 0,		      __constant_htonl(0x1),		      __constant_htonl(0xFF000000) | addr->s6_addr32[3]);}  static inline void ipv6_addr_all_nodes(struct in6_addr *addr){	ipv6_addr_set(addr,		      __constant_htonl(0xFF020000), 0, 0,		      __constant_htonl(0x1));} static inline void ipv6_addr_all_routers(struct in6_addr *addr){	ipv6_addr_set(addr,		      __constant_htonl(0xFF020000), 0, 0,		      __constant_htonl(0x2));} static inline int ipv6_addr_is_multicast(const struct in6_addr *addr){	return (addr->s6_addr32[0] & __constant_htonl(0xFF000000)) == __constant_htonl(0xFF000000);} static inline int ipv6_addr_is_ll_all_nodes(const struct in6_addr *addr){	return (addr->s6_addr32[0] == htonl(0xff020000) &&		addr->s6_addr32[1] == 0 &&		addr->s6_addr32[2] == 0 &&		addr->s6_addr32[3] == htonl(0x00000001));} static inline int ipv6_addr_is_ll_all_routers(const struct in6_addr *addr){	return (addr->s6_addr32[0] == htonl(0xff020000) &&		addr->s6_addr32[1] == 0 &&		addr->s6_addr32[2] == 0 &&		addr->s6_addr32[3] == htonl(0x00000002));} #ifdef CONFIG_PROC_FSextern int if6_proc_init(void);extern void if6_proc_exit(void);#endif #endif#endif