120 lines
3.1 KiB
C++
120 lines
3.1 KiB
C++
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/*
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* ProtectedDataImageF150221.hpp
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*
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* Created on:
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* Author: titov
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*/
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#ifndef UMLIBRARY_DRIVER_PROTECTEDDATAIMAGEF150221_HPP_
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#define UMLIBRARY_DRIVER_PROTECTEDDATAIMAGEF150221_HPP_
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#include "DataImageF150221.hh"
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#include "../common/Crc.hpp"
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namespace driver { namespace bf {
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template<class Crc16Type = common::crc::Crc16_CCITT, class Crc32Type = common::crc::Crc32_C>
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struct ProtectedDataImageF150221 : public DataImageF150221 {
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typedef Crc16Type DataCrc;
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typedef Crc32Type InfoCrc;
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void update_info_crc();
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void update_data_crc( Id id );
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void update_crc();
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bool check_info_crc() const;
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bool check_data_crc( Id id ) const;
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bool check_crc() const;
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};
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}
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}
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template< class Crc16Type,
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class Crc32Type>
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inline void driver::bf::ProtectedDataImageF150221<Crc16Type, Crc32Type>::update_info_crc() {
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typename InfoCrc::crc_t crc;
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for( std::size_t i = 0; i < head->setting_count; ++i ) {
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crc = common::crc::crcCalc<InfoCrc>( reinterpret_cast<const char *>( &info[i] ), sizeof(info[i].id) + sizeof(info[i].size), crc );
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}
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head->info_crc = crc.value();
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}
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template< class Crc16Type,
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class Crc32Type>
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inline void driver::bf::ProtectedDataImageF150221<Crc16Type, Crc32Type>::update_data_crc(
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Id id ) {
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Setting setting = extract_setting(id);
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if( setting.buffer ) {
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setting.info->crc = common::crc::crcCalc<DataCrc>( setting.buffer, setting.info->size ).value();
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}
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}
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template< class Crc16Type,
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class Crc32Type>
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inline void driver::bf::ProtectedDataImageF150221<Crc16Type, Crc32Type>::update_crc() {
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update_info_crc();
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for( std::size_t i = 0; i < head->setting_count; ++i )
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update_data_crc( info[i].id );
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}
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template< class Crc16Type,
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class Crc32Type>
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inline bool driver::bf::ProtectedDataImageF150221<Crc16Type, Crc32Type>::check_info_crc() const {
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typename InfoCrc::crc_t crc;
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for( std::size_t i = 0; i < head->setting_count; ++i ) {
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crc = common::crc::crcCalc<InfoCrc>( reinterpret_cast<const char *>(&info[i] ), sizeof(info[i].id) + sizeof(info[i].size), crc );
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}
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return head->info_crc == crc.value();
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}
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template< class Crc16Type,
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class Crc32Type>
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inline bool driver::bf::ProtectedDataImageF150221<Crc16Type, Crc32Type>::check_data_crc(
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Id id ) const {
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Setting setting = extract_setting(id);
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if( setting.buffer )
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return setting.info->crc == common::crc::crcCalc<DataCrc>( setting.buffer, setting.info->size ).value();
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return false;
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}
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template< class Crc16Type,
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class Crc32Type>
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inline bool driver::bf::ProtectedDataImageF150221<Crc16Type, Crc32Type>::check_crc() const {
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if( not check_info_crc() )
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return false;
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for( std::size_t i = 0; i < head->setting_count; ++i ) {
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Setting setting = extract_setting(info[i].id);
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if( not setting.buffer
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or setting.info->crc != common::crc::crcCalc<DataCrc>( setting.buffer, setting.info->size ).value() )
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return false;
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}
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return true;
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}
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#endif /* UMLIBRARY_DRIVER_PROTECTEDDATAIMAGEF150221_HPP_ */
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