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/***************************************************************************
* Copyright (C) 2007 Nicolas Hadacek <hadacek@kde.org> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
***************************************************************************/
#include "checksum_check.h"
#include "devices/base/device_group.h"
//----------------------------------------------------------------------------
bool ChecksumCheck::skip(const Device::Data &data) const
{
return ( data.group().name()!="pic" );
}
bool ChecksumCheck::init(const Device::Data &data)
{
_memory = static_cast<Pic::Memory *>(data.group().createMemory(data));
return true;
}
void ChecksumCheck::cleanup(const Device::Data &)
{
delete _memory;
_memory = 0;
}
void ChecksumCheck::setProtection(const Pic::Data &data, const Pic::Checksum::Data &cdata,
const QString &maskName, const QString &valueName)
{
const Pic::Protection &protection = data.config().protection();
if ( !maskName.isEmpty() && !valueName.isEmpty() ) _memory->setConfigValue(maskName, valueName);
if ( !valueName.isEmpty() ) _memory->setUserIdToUnprotectedChecksum();
for (uint i=0; i<cdata.protectedMaskNames.count(); i++) {
QString pmName = cdata.protectedMaskNames[i];
const Pic::Config::Mask *mask = data.config().findMask(pmName, 0);
for (int k=mask->values.count()-1; k>=0; k--) {
if ( mask->values[k].name.isEmpty() ) continue;
if ( protection.isNoneProtectedValueName(mask->values[k].name) ) continue;
_memory->setConfigValue(pmName, mask->values[k].name);
break;
}
}
if ( !cdata.bbsize.isEmpty() ) _memory->setConfigValue(protection.bootSizeMaskName(), cdata.bbsize);
}
bool ChecksumCheck::checkChecksum(BitValue checksum, const QString &label)
{
BitValue c = _memory->checksum();
if ( c!=checksum ) TEST_FAILED_RETURN(QString("%1 %2/%3").arg(label).arg(toHexLabel(c, 4)).arg(toHexLabel(checksum, 4)))
return true;
}
void ChecksumCheck::checkChecksum(const Pic::Data &pdata, const QString &maskName, const QString &valueName, bool &ok)
{
if ( !pdata.checksums().contains(valueName) ) {
const Pic::Config::Mask *mask = pdata.config().findMask(maskName);
QString label = valueName + (mask ? "/" + mask->name : QString::null);
printf("Missing checksum for \"%s\"", label.latin1());
return;
}
const Pic::Checksum::Data &cdata = pdata.checksums()[valueName];
_memory->clear();
setProtection(pdata, cdata, maskName, valueName);
if ( !checkChecksum(cdata.blankChecksum, maskName + ":" + valueName + "/" + "blank") ) ok = false;
_memory->checksumCheckFill();
setProtection(pdata, cdata, maskName, valueName);
if ( !checkChecksum(cdata.checkChecksum, maskName + ":" + valueName + "/" + "check") ) ok = false;
}
bool ChecksumCheck::execute(const Device::Data &data)
{
const Pic::Data &pdata = static_cast<const Pic::Data &>(data);
if ( data.name()=="18C601" || data.name()=="18C801" ) TEST_PASSED;
if ( pdata.checksums().isEmpty() ) TEST_FAILED_RETURN("No checksum data");
bool ok = true;
const Pic::Protection &protection = pdata.config().protection();
switch ( protection.family() ) {
case Pic::Protection::NoProtection:
checkChecksum(pdata, QString::null, QString::null, ok);
break;
case Pic::Protection::BasicProtection: {
QString maskName = protection.maskName(Pic::Protection::ProgramProtected, Pic::MemoryRangeType::Code);
const Pic::Config::Mask *mask = pdata.config().findMask(maskName);
Q_ASSERT(mask);
for (uint i=0; i<mask->values.count(); i++) {
QString valueName = mask->values[i].name;
if ( valueName.isEmpty() ) continue; // invalid value
checkChecksum(pdata, maskName, valueName, ok);
}
break;
}
case Pic::Protection::CodeGuard:
checkChecksum(pdata, "GSSEC", "Off", ok);
checkChecksum(pdata, "GSSEC", "High Security", ok);
break;
case Pic::Protection::BlockProtection: {
const QMap<QString, Pic::Checksum::Data> &cmap = pdata.checksums();
QMap<QString, Pic::Checksum::Data>::const_iterator it;
for (it=cmap.begin(); it!=cmap.end(); ++it)
checkChecksum(pdata, QString::null, it.key(), ok);
break;
}
case Pic::Protection::Nb_Families: Q_ASSERT(false); break;
}
if ( !ok ) return false;
TEST_PASSED
return true;
}
//----------------------------------------------------------------------------
TEST_MAIN(ChecksumCheck)
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