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			84 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			84 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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             LUFA Library
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     Copyright (C) Dean Camera, 2011.
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  dean [at] fourwalledcubicle [dot] com
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           www.lufa-lib.org
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*/
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/*
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  Copyright 2011  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 ICMP.c.
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 */
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#ifndef _ICMP_H_
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#define _ICMP_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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		/** ICMP message type constant, indicating an ICMP ECHO Reply message. */
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		#define ICMP_TYPE_ECHOREPLY              0
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		/** ICMP message type constant, indicating a packet destination is unreachable. */
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		#define ICMP_TYPE_DESTINATIONUNREACHABLE 3
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		/** ICMP message type constant, indicating an ICMP Source Quench message. */
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		#define ICMP_TYPE_SOURCEQUENCH           4
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		/** ICMP message type constant, indicating an ICMP Redirect message. */
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		#define ICMP_TYPE_REDIRECTMESSAGE        5
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		/** ICMP message type constant, indicating an ICMP ECHO Request message. */
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		#define ICMP_TYPE_ECHOREQUEST            8
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		/** ICMP message type constant, indicating an ICMP Time Exceeded message. */
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		#define ICMP_TYPE_TIMEEXCEEDED           11
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	/* Type Defines: */
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		/** Type define for an ICMP message header. */
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		typedef struct
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		{
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			uint8_t       Type; /**< ICMP message type, a ICMP_TYPE_* constant */
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			uint8_t       Code; /**< ICMP message code, indicating the message value */
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			uint16_t      Checksum; /**< Ethernet checksum of the ICMP message */
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			uint16_t      Id; /**< Id of the ICMP message */
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			uint16_t      Sequence; /**< Sequence number of the ICMP message, to link together message responses */
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		} ICMP_Header_t;
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	/* Function Prototypes: */
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		int16_t ICMP_ProcessICMPPacket(Ethernet_Frame_Info_t* const FrameIN,
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		                               void* InDataStart,
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		                               void* OutDataStart);
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#endif
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