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/*
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LUFA Library
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Copyright (C) Dean Camera, 2010.
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dean [at] fourwalledcubicle [dot] com
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www.fourwalledcubicle.com
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*/
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/*
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Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaim all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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/** \file
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*
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* Header file for ARP.c.
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*/
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#ifndef _ARP_H_
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#define _ARP_H_
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/* Includes: */
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#include <avr/io.h>
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#include <string.h>
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#include "EthernetProtocols.h"
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#include "Ethernet.h"
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#include "ProtocolDecoders.h"
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/* Macros: */
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/** ARP header operation constant, indicating a request from a host for an address translation. */
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#define ARP_OPERATION_REQUEST 1
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/** ARP header operation constant, indicating a reply from a host giving an address translation. */
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#define ARP_OPERATION_REPLY 2
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/* Type Defines: */
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/** Type define for an ARP packet inside an Ethernet frame. */
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typedef struct
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{
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uint16_t HardwareType; /**< Hardware type constant, indicating the hardware used */
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uint16_t ProtocolType; /**< Protocol being resolved, usually ETHERTYPE_IPV4 */
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uint8_t HLEN; /**< Length in bytes of the source/destination hardware addresses */
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uint8_t PLEN; /**< Length in bytes of the source/destination protocol addresses */
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uint16_t Operation; /**< Type of operation, either ARP_OPERATION_REQUEST or ARP_OPERATION_REPLY */
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MAC_Address_t SHA; /**< Sender's hardware address */
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IP_Address_t SPA; /**< Sender's protocol address */
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MAC_Address_t THA; /**< Target's hardware address */
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IP_Address_t TPA; /**< Target's protocol address */
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} ARP_Header_t;
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/* Function Prototypes: */
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int16_t ARP_ProcessARPPacket(void* InDataStart,
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void* OutDataStart);
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#endif
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