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+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2009.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.fourwalledcubicle.com
+*/
+
+/*
+ Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ Permission to use, copy, modify, and distribute this software
+ and its documentation for any purpose and without fee is hereby
+ granted, 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 <LUFA/Scheduler/Scheduler.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