/* 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 #include #include #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