diff options
Diffstat (limited to 'Demos/Device/ClassDriver/RNDISEthernet/Lib/IP.h')
| -rw-r--r-- | Demos/Device/ClassDriver/RNDISEthernet/Lib/IP.h | 93 | 
1 files changed, 93 insertions, 0 deletions
| diff --git a/Demos/Device/ClassDriver/RNDISEthernet/Lib/IP.h b/Demos/Device/ClassDriver/RNDISEthernet/Lib/IP.h new file mode 100644 index 0000000000..0dd6db8a41 --- /dev/null +++ b/Demos/Device/ClassDriver/RNDISEthernet/Lib/IP.h @@ -0,0 +1,93 @@ +/* +             LUFA Library +     Copyright (C) Dean Camera, 2017. + +  dean [at] fourwalledcubicle [dot] com +           www.lufa-lib.org +*/ + +/* +  Copyright 2017  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 disclaims 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 IP.c. + */ + +#ifndef _IP_H_ +#define _IP_H_ + +	/* Includes: */ +		#include <avr/io.h> +		#include <string.h> + +		#include "EthernetProtocols.h" +		#include "Ethernet.h" +		#include "ProtocolDecoders.h" +		#include "Config/AppConfig.h" + +	/* Macros: */ +		/** Protocol IP address of the broadcast address. */ +		#define BROADCAST_IP_ADDRESS             {0xFF, 0xFF, 0xFF, 0xFF} + +		/** Default Time To Live (TTL) value for sent packets, indicating the maximum allowable hops until their destination +		 *  is reached. +		 */ +		#define DEFAULT_TTL                      128 + +		/** Performs a comparison between two IP addresses, indicating if they are identical. +		 * +		 *  \param[in] IP1  First IP address +		 *  \param[in] IP2  Second IP address +		 * +		 *  \return True if the addresses match, \c false otherwise +		 */ +		#define IP_COMPARE(IP1, IP2)             (memcmp(IP1, IP2, sizeof(IP_Address_t)) == 0) + +	/* Type Defines: */ +		/** Type define of an IP packet header. */ +		typedef struct +		{ +			unsigned     HeaderLength   : 4; /**< Total length of the packet header, in 4-byte blocks */ +			unsigned     Version        : 4; /**< IP protocol version */ +			uint8_t      TypeOfService; /**< Special service type identifier, indicating delay/throughput/reliability levels */ +			uint16_t     TotalLength; /**< Total length of the IP packet, in bytes */ + +			uint16_t     Identification; /**< Identification value for identifying fragmented packets */ +			unsigned     FragmentOffset : 13; /**< Offset of this IP fragment */ +			unsigned     Flags          : 3; /**< Fragment flags, to indicate if a packet is fragmented */ + +			uint8_t      TTL; /**< Maximum allowable number of hops to reach the packet destination */ +			uint8_t      Protocol; /**< Encapsulated protocol type */ +			uint16_t     HeaderChecksum; /**< Ethernet checksum of the IP header */ + +			IP_Address_t SourceAddress; /**< Source protocol IP address of the packet */ +			IP_Address_t DestinationAddress; /**< Destination protocol IP address of the packet */ +		} IP_Header_t; + +	/* Function Prototypes: */ +		int16_t IP_ProcessIPPacket(Ethernet_Frame_Info_t* const FrameIN, +		                           void* InDataStart, +		                           void* OutDataStart); + +#endif + | 
