/*
LUFA Library
Copyright ( C ) Dean Camera , 2012.
dean [ at ] fourwalledcubicle [ dot ] com
www . lufa - lib . org
*/
/*
Copyright 2012 Dean Camera ( dean [ at ] fourwalledcubicle [ dot ] com )
Permission to use , copy , modify , distribute , and sell this
software and its documentation for any purpose is hereby granted
without fee , provided that the above copyright notice appear in
all copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation , and that the name of the author not be used in
advertising or publicity pertaining to distribution of the
software without specific , written prior permission .
The author disclaim all warranties with regard to this
software , including all implied warranties of merchantability
and fitness . In no event shall the author be liable for any
special , indirect or consequential damages or any damages
whatsoever resulting from loss of use , data or profits , whether
in an action of contract , negligence or other tortious action ,
arising out of or in connection with the use or performance of
this software .
*/
/** \file
*
* Header file for ARP . c .
*/
# ifndef _ARP_H_
# define _ARP_H_
/* Includes: */
# include <avr/io.h>
# include <string.h>
# include "EthernetProtocols.h"
# include "Ethernet.h"
# include "ProtocolDecoders.h"
/* Macros: */
/** ARP header operation constant, indicating a request from a host for an address translation. */
# define ARP_OPERATION_REQUEST 1
/** ARP header operation constant, indicating a reply from a host giving an address translation. */
# define ARP_OPERATION_REPLY 2
/* Type Defines: */
/** Type define for an ARP packet inside an Ethernet frame. */
typedef struct
{
uint16_t HardwareType ; /**< Hardware type constant, indicating the hardware used */
uint16_t ProtocolType ; /**< Protocol being resolved, usually ETHERTYPE_IPV4 */
uint8_t HLEN ; /**< Length in bytes of the source/destination hardware addresses */
uint8_t PLEN ; /**< Length in bytes of the source/destination protocol addresses */
uint16_t Operation ; /**< Type of operation, either ARP_OPERATION_REQUEST or ARP_OPERATION_REPLY */
MAC_Address_t SHA ; /**< Sender's hardware address */
IP_Address_t SPA ; /**< Sender's protocol address */
MAC_Address_t THA ; /**< Target's hardware address */
IP_Address_t TPA ; /**< Target's protocol address */
} ARP_Header_t ;
/* Function Prototypes: */
int16_t ARP_ProcessARPPacket ( void * InDataStart ,
void * OutDataStart ) ;
# endif
