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Retrying missing title keys enabled

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This commit is contained in:
Rebecca Wallander
2021-01-15 12:36:00 +01:00
parent f30bc69c13
commit 76b8f3d751
2 changed files with 106 additions and 0 deletions
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99
Aaru.Core/Devices/Dumping/Sbc/Error.cs
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@@ -25,12 +25,17 @@
// ****************************************************************************/
using System.Linq;
using Aaru.CommonTypes.Enums;
using Aaru.CommonTypes.Extents;
using Aaru.CommonTypes.Structs.Devices.SCSI;
using Aaru.Console;
using Aaru.Decoders.DVD;
using Aaru.Decoders.SCSI;
using Aaru.Decryption;
using Aaru.Decryption.DVD;
using Aaru.Devices;
using Schemas;
using DVDDecryption = Aaru.Decryption.DVD.Dump;
// ReSharper disable JoinDeclarationAndInitializer
// ReSharper disable InlineOutVariableDeclaration
@@ -310,5 +315,99 @@ namespace Aaru.Core.Devices.Dumping
EndProgress?.Invoke();
}
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((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();
}
}
}