Remote Access Control

createrxhex.cpp File Reference

---

Detailed Description

Source file for a EEPROM image generator for RKE receiver AVR.

• File: createrxhex.cpp
• Compiler: Any PC C++ Compiler
• AppNote: AVR411 - Secure Rolling Code Algorithm for Wireless Link

Author:

Atmel Corporation: http://www.atmel.com
Support email: avr@atmel.com

$Name$

Revision

792

Date

2006-10-09 10:36:07 +0200 (ma, 09 okt 2006)

Copyright (c) 2006, Atmel Corporation All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

3. The name of ATMEL may not be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY ATMEL ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Definition in file createrxhex.cpp.

#include "hexfile.h"
#include <sstream>
#include <iomanip>
#include <string>
#include <stdexcept>
#include <vector>
#include <fstream>

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Data Structures
class	ParameterParser
	Class to parse and store command line parameters for this application. More...
Functions
void	CreateHEXFile (const ParameterParser &parser)
int	main (size_t argc, const char **argv)

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Function Documentation

void CreateHEXFile

(

const ParameterParser &

parser

)

This function creates a HEX file from parameters stored in a parameter parser object.

Definition at line 211 of file createrxhex.cpp.

References ParameterParser::GetCounterSize(), ParameterParser::GetFilename(), ParameterParser::GetKeySize(), ParameterParser::GetMaxTransmitters(), ParameterParser::GetSerialNoSize(), and ParameterParser::GetSharedKey().

Referenced by main().

{
        HEXFile hexData;
        std::ofstream outFile( parser.GetFilename().c_str() );

        // Prepare shared key bytes.
        HEXRecord sharedKey;
        sharedKey << parser.GetSharedKey();

        // Prepare transmitter count byte.
        HEXRecord transmitterCount;
        transmitterCount << ((byte) 0x00);

        // Prepare empty transmitter table entry.
        HEXRecord transmitterTableEntry;
        const size_t entrySize =
                (parser.GetKeySize() / 8) +
                parser.GetSerialNoSize() +
                parser.GetCounterSize();
        for( size_t idx = 0; idx < entrySize; ++idx ) {
                transmitterTableEntry << ((byte) 0xff); // Erased EEPROM cells.
        }

        // Add records to HEX file.
        hexData << sharedKey << transmitterCount;
        for( size_t idx = 0; idx < parser.GetMaxTransmitters(); ++idx ) {
                hexData << transmitterTableEntry;
        }

        // Write to disk.
        outFile << hexData;
}

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int main	(	size_t	argc,
		const char **	argv
	)

Definition at line 246 of file createrxhex.cpp.

References CreateHEXFile(), ParameterParser::GetCounterSize(), ParameterParser::GetFilename(), ParameterParser::GetKeySize(), ParameterParser::GetMaxTransmitters(), ParameterParser::GetSerialNoSize(), and ParameterParser::GetSharedKeyString().

{
        try {
                ParameterParser parser( argc, argv );
                std::cout << "Filename        : " << parser.GetFilename() << std::endl
                        << "Key size        : " << parser.GetKeySize() << std::endl
                        << "Serial no size  : " << parser.GetSerialNoSize() << std::endl
                        << "Counter size    : " << parser.GetCounterSize() << std::endl
                        << "Shared key      : " << parser.GetSharedKeyString() << std::endl
                        << "Max transmitters: " << parser.GetMaxTransmitters() << std::endl;

                CreateHEXFile( parser );
                std::cout << std::endl << parser.GetFilename() << " created!" << std::endl;

        } catch( const std::exception & e ) {
                std::cout << "Error: " << e.what() << std::endl;
        } catch(...) {
                std::cout << "Unknown error" << std::endl;
        }
}

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