decoders/decode_arp.h

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#ifndef _HLBR_DECODE_ARP_H_
#define _HLBR_DECODE_ARP_H_

#include "../config.h"
#include "../engine/hlbr.h"
#include "decode.h"

#define ARP_TYPE_ETHERNET       0x0001
#define ARP_TYPE_IP                     0x0800

#define ARP_OP_REQUEST          0x0001
#define ARP_OP_REPLY            0x0002

typedef struct arp_header{
        unsigned short          HardwareType;
        unsigned short          ProtocolType;
        unsigned char           HardwareLen;
        unsigned char           ProtocolLen;
        unsigned short          Operation;
} ARPHdr;

typedef struct arp_ether_ip{
        unsigned char           SenderMac[6];
        unsigned char           SenderIP[4];  /*leave as char so they're packed propertly*/
        unsigned char           TargetMac[6];
        unsigned char           TargetIP[4];
} ARPEtherIP;

typedef struct arp_data{
        ARPHdr*         Header;
        ARPEtherIP*     EthernetARPHeader;
} ARPData;


int InitDecoderARP();

#endif

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