void RetryTitleKeys(DVDDecryption dvdDecrypt, byte[] discKey, ref double totalDuration)
{
int pass = 1;
bool forward = true;
bool sense;
byte[] buffer;
InitProgress?.Invoke();
repeatRetry:
ulong[] tmpArray = _resume.MissingTitleKeys.ToArray();
foreach (ulong missingKey in tmpArray)
{
if (_aborted)
{
UpdateStatus?.Invoke("Aborted!");
_dumpLog.WriteLine("Aborted!");
break;
}
PulseProgress?.Invoke(string.Format("Retrying title key {0}, pass {1}, {2}", missingKey, pass,
forward ? "forward" : "reverse"));
sense = dvdDecrypt.ReadTitleKey(out buffer, out _, DvdCssKeyClass.DvdCssCppmOrCprm, missingKey,
_dev.Timeout, out double cmdDuration);
totalDuration += cmdDuration;
if (!sense &&
!_dev.Error)
{
CSS_CPRM.TitleKey?titleKey = CSS.DecodeTitleKey(buffer, dvdDecrypt.BusKey);
if (titleKey.HasValue)
{
_outputPlugin.WriteSectorTag(new[]
{
titleKey.Value.CMI
}, missingKey, SectorTagType.DvdCmi);
// If the CMI bit is 1, the sector is using copy protection, else it is not
// If the decoded title key is zeroed, there should be no copy protection
if ((titleKey.Value.CMI & 0x80) >> 7 == 0 ||
titleKey.Value.Key.All(k => k == 0))
{
_outputPlugin.WriteSectorTag(new byte[]
{
0, 0, 0, 0, 0
}, missingKey, SectorTagType.DvdTitleKey);
_outputPlugin.WriteSectorTag(new byte[]
{
0, 0, 0, 0, 0
}, missingKey, SectorTagType.DvdTitleKeyDecrypted);
_resume.MissingTitleKeys.Remove(missingKey);
UpdateStatus?.Invoke($"Correctly retried title key {missingKey} in pass {pass}.");
_dumpLog.WriteLine("Correctly retried title key {0} in pass {1}.", missingKey, pass);
}
else
{
_outputPlugin.WriteSectorTag(titleKey.Value.Key, missingKey, SectorTagType.DvdTitleKey);
_resume.MissingTitleKeys.Remove(missingKey);
if (discKey != null)
{
CSS.DecryptTitleKey(0, discKey, titleKey.Value.Key, out buffer);
_outputPlugin.WriteSectorTag(buffer, missingKey, SectorTagType.DvdTitleKeyDecrypted);
}
UpdateStatus?.Invoke($"Correctly retried title key {missingKey} in pass {pass}.");
_dumpLog.WriteLine("Correctly retried title key {0} in pass {1}.", missingKey, pass);
}
}
}
}
if (pass < _retryPasses &&
!_aborted &&
_resume.MissingTitleKeys.Count > 0)
{
pass++;
forward = !forward;
_resume.MissingTitleKeys.Sort();
if (!forward)
{
_resume.MissingTitleKeys.Reverse();
}
goto repeatRetry;
}
EndProgress?.Invoke();
}