static private ChecksumResult updateChecksum(string filename, T7FileHeader t7InfoHeader, int calculatedFWChecksum, uint calculatedF2Checksum, int calculatedFBChecksum, int sramOffset)
{
setFWChecksum(filename, calculatedFWChecksum, sramOffset);
t7InfoHeader.setChecksumF2((int)calculatedF2Checksum);
t7InfoHeader.setChecksumFB(calculatedFBChecksum);
t7InfoHeader.save(filename);
logger.Debug("Checksums updated");
return(ChecksumResult.Ok);
}
static public void UpdateChecksum(string filename, bool autoFixFooter)
{
csumArea = new csum_area_t[16];
for (int i = 0; i < csumArea.Length; i++)
{
csumArea[i] = new csum_area_t();
}
T7FileHeader t7InfoHeader = new T7FileHeader();
t7InfoHeader.init(filename, autoFixFooter);
int sramOffset = t7InfoHeader.getSramOffset();
int fwLength = t7InfoHeader.getFWLength();
int calculatedFWChecksum = calculateFWChecksum(filename, sramOffset);
uint calculatedF2Checksum = calculateF2Checksum(filename, 0, fwLength);
int calculatedFBChecksum = calculateFBChecksum(filename, 0, fwLength);
logger.Debug("calculatedF2Checksum = " + calculatedF2Checksum.ToString("X8"));
logger.Debug("calculatedFBChecksum = " + calculatedFBChecksum.ToString("X8"));
logger.Debug("calculatedFWChecksum = " + calculatedFWChecksum.ToString("X8"));
updateChecksum(filename, t7InfoHeader, calculatedFWChecksum, calculatedF2Checksum, calculatedFBChecksum, sramOffset);
}
static public ChecksumResult VerifyChecksum(string filename, bool autocorrect, bool autofixFooter, ChecksumDelegate.ChecksumUpdate delegateShouldUpdate)
{
csumArea = new csum_area_t[16];
for (int i = 0; i < csumArea.Length; i++)
{
csumArea[i] = new csum_area_t();
}
ChecksumResult result = ChecksumResult.Ok;
T7FileHeader t7InfoHeader = new T7FileHeader();
t7InfoHeader.init(filename, autofixFooter);
int sramOffset = t7InfoHeader.getSramOffset();
int fwLength = t7InfoHeader.getFWLength();
int calculatedFWChecksum = calculateFWChecksum(filename, sramOffset);
uint calculatedF2Checksum = calculateF2Checksum(filename, 0, fwLength);
int calculatedFBChecksum = calculateFBChecksum(filename, 0, fwLength);
int readF2checksum = t7InfoHeader.getChecksumF2();
int readFBchecksum = t7InfoHeader.getChecksumFB();
if (readF2checksum != 0)
{
if (t7InfoHeader.getChecksumF2() != (int)calculatedF2Checksum)
{
result = ChecksumResult.ChecksumF2Failed;
}
}
if (t7InfoHeader.getChecksumFB() != calculatedFBChecksum)
{
result = ChecksumResult.ChecksumFBFailed;
}
if (getFWChecksum(filename, sramOffset) != calculatedFWChecksum)
{
result = ChecksumResult.ChecksumFWFailed;
}
if (result != ChecksumResult.Ok)
{
logger.Debug("Checksum was invalid, should be updated!");
logger.Debug("calculatedF2Checksum = " + calculatedF2Checksum.ToString("X8") + " readF2checksum = " + readF2checksum.ToString("X8"));
logger.Debug("calculatedFBChecksum = " + calculatedFBChecksum.ToString("X8") + " readFBchecksum = " + readFBchecksum.ToString("X8"));
logger.Debug("calculatedFWChecksum = " + calculatedFWChecksum.ToString("X8") + " getFWChecksum = " + getFWChecksum(filename, sramOffset).ToString("X8"));
if (autocorrect)
{
result = updateChecksum(filename, t7InfoHeader, calculatedFWChecksum, calculatedF2Checksum, calculatedFBChecksum, sramOffset);
}
else
{
if (delegateShouldUpdate(null, null, null))
{
result = updateChecksum(filename, t7InfoHeader, calculatedFWChecksum, calculatedF2Checksum, calculatedFBChecksum, sramOffset);
}
}
}
return(result);
}
