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/* linux/net/inet/arp.h */
#ifndef _ARP_H
#define _ARP_H
#include <linux/if_arp.h>
#include <net/neighbour.h>
/*
* This structure defines the ARP mapping cache.
*/
struct arp_table
{
union {
struct neighbour neigh;
struct arp_table *next;
} u;
u32 ip;
unsigned long last_updated; /* For expiry */
unsigned int flags; /* Control status */
u32 mask; /* netmask - used for generalised proxy arps (tridge) */
int hatype;
/*
* The following entries are only used for unresolved hw addresses.
*/
struct timer_list timer; /* expire timer */
int retries; /* remaining retries */
};
extern void arp_init(void);
extern int arp_rcv(struct sk_buff *skb, struct device *dev,
struct packet_type *pt);
extern int arp_find(unsigned char *haddr, struct sk_buff *skb);
extern int arp_find_1(unsigned char *haddr, struct dst_entry* dst,
struct neighbour *neigh);
extern int arp_ioctl(unsigned int cmd, void *arg);
extern void arp_send(int type, int ptype, u32 dest_ip,
struct device *dev, u32 src_ip,
unsigned char *dest_hw, unsigned char *src_hw, unsigned char *th);
extern int arp_req_set(struct arpreq *r, struct device *dev);
extern int arp_req_delete(struct arpreq *r, struct device *dev);
extern int arp_bind_cache(struct hh_cache ** hhp, struct device *dev, unsigned short type, __u32 daddr);
extern int arp_update_cache(struct hh_cache * hh);
extern struct neighbour *arp_find_neighbour(struct dst_entry *dst, int);
#endif /* _ARP_H */
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