/* linux/net/inet/arp.h */#ifndef _ARP_H#define _ARP_H #include <linux/if_arp.h>#include <net/neighbour.h>  extern struct neigh_table arp_tbl; extern void	arp_init(void);extern int	arp_find(unsigned char *haddr, struct sk_buff *skb);extern int	arp_ioctl(struct net *net, unsigned int cmd, void __user *arg);extern void     arp_send(int type, int ptype, __be32 dest_ip,			 struct net_device *dev, __be32 src_ip,			 const unsigned char *dest_hw,			 const unsigned char *src_hw, const unsigned char *th);extern int	arp_bind_neighbour(struct dst_entry *dst);extern int	arp_mc_map(__be32 addr, u8 *haddr, struct net_device *dev, int dir);extern void	arp_ifdown(struct net_device *dev); extern struct sk_buff *arp_create(int type, int ptype, __be32 dest_ip,				  struct net_device *dev, __be32 src_ip,				  const unsigned char *dest_hw,				  const unsigned char *src_hw,				  const unsigned char *target_hw);extern void arp_xmit(struct sk_buff *skb);int arp_invalidate(struct net_device *dev, __be32 ip); #endif	/* _ARP_H */