arpinternal.h

/*NB_REVISION*/
 
/*NB_COPYRIGHT*/
 
#ifndef _ARP_INTERNAL_H
#define _ARP_INTERNAL_H
 
#include <basictypes.h>
#include <buffers.h>
#include <nettypes.h>
 
/*-----------------------------------------------------------------------------**
 ** The following structure defines the                                         **
 ** data records in the arp cache.                                              **
 ** The fields are:                                                             **
 **                                                                             **
 ** mac -> The hardware MAC address associated with this record.                 **
 **              This value is NULL when the entry has not yet been             **
 **              processed.                                                     **
 **                                                                             **
 ** ip  -> The IP address associated with this record.                           **
 **                                                                             **
 ** life_limit ->The seconds count when this entry should be deleted.           **
 **                                                                             **
 ** pPendingSend ->The buffer pool pointer, this buffer should be sent when the **
 **                         mac address is finally resolved.                    **
 **-----------------------------------------------------------------------------*/
#define ARP_STATIC_LIFETIME (0xFFFFFFFF)
typedef struct
{
    MACADR mac;
    IPADDR4 ip;
    uint32_t life_limit;
    PoolPtr pPendingSend;
    uint16_t pvtData;
    uint16_t interface;
    OS_SEM *pPendingSem;
    inline uint32_t SetLife(uint32_t newLife)
    {
        if (life_limit != ARP_STATIC_LIFETIME) { life_limit = newLife; }
        return life_limit;
    }
} ArpRecord;
 
BOOL IsNull(ArpRecord *ar);
ArpRecord *FindArp(IPADDR4 ip);
ArpRecord *FindAddArp(IPADDR4 ip);
BOOL MacEqual(MACADR a1, MACADR a2);
void RawSendArp(ArpRecord *pa, IPADDR4 fromaddr, int ifout);
 
#endif /* ----- #ifndef _ARP_INTERNAL_H_INC  ----- */