mirror of
https://github.com/aaru-dps/Aaru.git
synced 2025-12-16 19:24:25 +00:00
277 lines
12 KiB
C#
277 lines
12 KiB
C#
// /***************************************************************************
|
|
// Aaru Data Preservation Suite
|
|
// ----------------------------------------------------------------------------
|
|
//
|
|
// Filename : Data.cs
|
|
// Author(s) : Natalia Portillo <claunia@claunia.com>
|
|
//
|
|
// --[ License ] --------------------------------------------------------------
|
|
//
|
|
// 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 3 of the
|
|
// License, or (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
//
|
|
// ----------------------------------------------------------------------------
|
|
// Copyright © 2011-2023 Natalia Portillo
|
|
// Copyright © 2020-2023 Rebecca Wallander
|
|
// ****************************************************************************/
|
|
|
|
using System;
|
|
using System.Linq;
|
|
using Aaru.CommonTypes.AaruMetadata;
|
|
using Aaru.CommonTypes.Enums;
|
|
using Aaru.CommonTypes.Extents;
|
|
using Aaru.CommonTypes.Interfaces;
|
|
using Aaru.Core.Logging;
|
|
using Aaru.Decoders.DVD;
|
|
using Aaru.Decryption;
|
|
using Aaru.Decryption.DVD;
|
|
using DVDDecryption = Aaru.Decryption.DVD.Dump;
|
|
|
|
// ReSharper disable JoinDeclarationAndInitializer
|
|
// ReSharper disable InlineOutVariableDeclaration
|
|
// ReSharper disable TooWideLocalVariableScope
|
|
|
|
namespace Aaru.Core.Devices.Dumping;
|
|
|
|
partial class Dump
|
|
{
|
|
/// <summary>Dumps data when dumping from a SCSI Block Commands compliant device</summary>
|
|
/// <param name="blocks">Media blocks</param>
|
|
/// <param name="maxBlocksToRead">Maximum number of blocks to read in a single command</param>
|
|
/// <param name="blockSize">Block size in bytes</param>
|
|
/// <param name="currentTry">Resume information</param>
|
|
/// <param name="extents">Correctly dump extents</param>
|
|
/// <param name="currentSpeed">Current speed</param>
|
|
/// <param name="minSpeed">Minimum speed</param>
|
|
/// <param name="maxSpeed">Maximum speed</param>
|
|
/// <param name="totalDuration">Total time spent in commands</param>
|
|
/// <param name="scsiReader">SCSI reader</param>
|
|
/// <param name="mhddLog">MHDD log</param>
|
|
/// <param name="ibgLog">ImgBurn log</param>
|
|
/// <param name="imageWriteDuration">Total time spent writing to image</param>
|
|
/// <param name="newTrim">Set if we need to start a trim</param>
|
|
/// <param name="dvdDecrypt">DVD CSS decryption module</param>
|
|
/// <param name="discKey">The DVD disc key</param>
|
|
void ReadSbcData(in ulong blocks, in uint maxBlocksToRead, in uint blockSize, DumpHardware currentTry,
|
|
ExtentsULong extents, ref double currentSpeed, ref double minSpeed, ref double maxSpeed,
|
|
ref double totalDuration, Reader scsiReader, MhddLog mhddLog, IbgLog ibgLog,
|
|
ref double imageWriteDuration, ref bool newTrim, ref DVDDecryption dvdDecrypt, byte[] discKey)
|
|
{
|
|
ulong sectorSpeedStart = 0;
|
|
bool sense;
|
|
DateTime timeSpeedStart = DateTime.UtcNow;
|
|
byte[] buffer;
|
|
uint blocksToRead = maxBlocksToRead;
|
|
var outputFormat = _outputPlugin as IWritableImage;
|
|
|
|
InitProgress?.Invoke();
|
|
|
|
for(ulong i = _resume.NextBlock; i < blocks; i += blocksToRead)
|
|
{
|
|
if(_aborted)
|
|
{
|
|
currentTry.Extents = ExtentsConverter.ToMetadata(extents);
|
|
UpdateStatus?.Invoke(Localization.Core.Aborted);
|
|
_dumpLog.WriteLine(Localization.Core.Aborted);
|
|
|
|
break;
|
|
}
|
|
|
|
if(blocks - i < blocksToRead)
|
|
blocksToRead = (uint)(blocks - i);
|
|
|
|
if(currentSpeed > maxSpeed &&
|
|
currentSpeed > 0)
|
|
maxSpeed = currentSpeed;
|
|
|
|
if(currentSpeed < minSpeed &&
|
|
currentSpeed > 0)
|
|
minSpeed = currentSpeed;
|
|
|
|
UpdateProgress?.
|
|
Invoke(string.Format(Localization.Core.Reading_sector_0_of_1_2_MiB_sec, i, blocks, currentSpeed),
|
|
(long)i, (long)blocks);
|
|
|
|
sense = scsiReader.ReadBlocks(out buffer, i, blocksToRead, out double cmdDuration, out _, out _);
|
|
totalDuration += cmdDuration;
|
|
|
|
if(!sense &&
|
|
!_dev.Error)
|
|
{
|
|
if(Settings.Settings.Current.EnableDecryption &&
|
|
discKey != null &&
|
|
_titleKeys)
|
|
{
|
|
for(ulong j = 0; j < blocksToRead; j++)
|
|
{
|
|
if(_aborted)
|
|
break;
|
|
|
|
if(!_resume.MissingTitleKeys.Contains(i + j))
|
|
|
|
// Key is already dumped.
|
|
continue;
|
|
|
|
byte[] tmpBuf;
|
|
|
|
bool tmpSense = dvdDecrypt.ReadTitleKey(out tmpBuf, out _, DvdCssKeyClass.DvdCssCppmOrCprm,
|
|
i + j, _dev.Timeout, out _);
|
|
|
|
if(tmpSense)
|
|
continue;
|
|
|
|
CSS_CPRM.TitleKey? titleKey = CSS.DecodeTitleKey(tmpBuf, dvdDecrypt.BusKey);
|
|
|
|
if(titleKey.HasValue)
|
|
outputFormat.WriteSectorTag(new[]
|
|
{
|
|
titleKey.Value.CMI
|
|
}, i + j, SectorTagType.DvdCmi);
|
|
else
|
|
continue;
|
|
|
|
// If the CMI bit is 1, the sector is using copy protection, else it is not
|
|
if((titleKey.Value.CMI & 0x80) >> 7 == 0)
|
|
{
|
|
// The CMI indicates this sector is not encrypted.
|
|
outputFormat.WriteSectorTag(new byte[]
|
|
{
|
|
0, 0, 0, 0, 0
|
|
}, i + j, SectorTagType.DvdTitleKey);
|
|
|
|
outputFormat.WriteSectorTag(new byte[]
|
|
{
|
|
0, 0, 0, 0, 0
|
|
}, i + j, SectorTagType.DvdTitleKeyDecrypted);
|
|
|
|
_resume.MissingTitleKeys.Remove(i + j);
|
|
|
|
continue;
|
|
}
|
|
|
|
// According to libdvdcss, if the key is all zeroes, the sector is actually
|
|
// not encrypted even if the CMI says it is.
|
|
if(titleKey.Value.Key.All(k => k == 0))
|
|
{
|
|
outputFormat.WriteSectorTag(new byte[]
|
|
{
|
|
0, 0, 0, 0, 0
|
|
}, i + j, SectorTagType.DvdTitleKey);
|
|
|
|
outputFormat.WriteSectorTag(new byte[]
|
|
{
|
|
0, 0, 0, 0, 0
|
|
}, i + j, SectorTagType.DvdTitleKeyDecrypted);
|
|
|
|
_resume.MissingTitleKeys.Remove(i + j);
|
|
|
|
continue;
|
|
}
|
|
|
|
outputFormat.WriteSectorTag(titleKey.Value.Key, i + j, SectorTagType.DvdTitleKey);
|
|
_resume.MissingTitleKeys.Remove(i + j);
|
|
|
|
CSS.DecryptTitleKey(discKey, titleKey.Value.Key, out tmpBuf);
|
|
outputFormat.WriteSectorTag(tmpBuf, i + j, SectorTagType.DvdTitleKeyDecrypted);
|
|
}
|
|
|
|
if(!_storeEncrypted)
|
|
|
|
// Todo: Flag in the outputFormat that a sector has been decrypted
|
|
{
|
|
ErrorNumber errno =
|
|
outputFormat.ReadSectorsTag(i, blocksToRead, SectorTagType.DvdCmi, out byte[] cmi);
|
|
|
|
if(errno != ErrorNumber.NoError)
|
|
ErrorMessage?.Invoke(string.Format(Localization.Core.Error_retrieving_CMI_for_sector_0, i));
|
|
else
|
|
{
|
|
errno = outputFormat.ReadSectorsTag(i, blocksToRead, SectorTagType.DvdTitleKeyDecrypted,
|
|
out byte[] titleKey);
|
|
|
|
if(errno != ErrorNumber.NoError)
|
|
ErrorMessage?.
|
|
Invoke(string.Format(Localization.Core.Error_retrieving_title_key_for_sector_0, i));
|
|
else
|
|
buffer = CSS.DecryptSector(buffer, titleKey, cmi, blocksToRead, blockSize);
|
|
}
|
|
}
|
|
}
|
|
|
|
mhddLog.Write(i, cmdDuration, blocksToRead);
|
|
ibgLog.Write(i, currentSpeed * 1024);
|
|
DateTime writeStart = DateTime.Now;
|
|
outputFormat.WriteSectors(buffer, i, blocksToRead);
|
|
imageWriteDuration += (DateTime.Now - writeStart).TotalSeconds;
|
|
extents.Add(i, blocksToRead, true);
|
|
_mediaGraph?.PaintSectorsGood(i, blocksToRead);
|
|
}
|
|
else
|
|
{
|
|
if(_dev.Manufacturer.ToLowerInvariant() == "insite")
|
|
{
|
|
_resume.BadBlocks.Add(i);
|
|
_resume.BadBlocks = _resume.BadBlocks.Distinct().ToList();
|
|
_resume.NextBlock++;
|
|
_aborted = true;
|
|
|
|
_dumpLog?.WriteLine(Localization.Core.
|
|
INSITE_floptical_drives_get_crazy_on_the_SCSI_bus_when_an_error_is_found);
|
|
|
|
UpdateStatus?.Invoke(Localization.Core.
|
|
INSITE_floptical_drives_get_crazy_on_the_SCSI_bus_when_an_error_is_found);
|
|
|
|
continue;
|
|
}
|
|
|
|
// TODO: Reset device after X errors
|
|
if(_stopOnError)
|
|
return; // TODO: Return more cleanly
|
|
|
|
if(i + _skip > blocks)
|
|
_skip = (uint)(blocks - i);
|
|
|
|
// Write empty data
|
|
DateTime writeStart = DateTime.Now;
|
|
outputFormat.WriteSectors(new byte[blockSize * _skip], i, _skip);
|
|
imageWriteDuration += (DateTime.Now - writeStart).TotalSeconds;
|
|
|
|
for(ulong b = i; b < i + _skip; b++)
|
|
_resume.BadBlocks.Add(b);
|
|
|
|
mhddLog.Write(i, cmdDuration < 500 ? 65535 : cmdDuration, _skip);
|
|
|
|
ibgLog.Write(i, 0);
|
|
_dumpLog.WriteLine(Localization.Core.Skipping_0_blocks_from_errored_block_1, _skip, i);
|
|
i += _skip - blocksToRead;
|
|
newTrim = true;
|
|
}
|
|
|
|
sectorSpeedStart += blocksToRead;
|
|
_resume.NextBlock = i + blocksToRead;
|
|
|
|
double elapsed = (DateTime.UtcNow - timeSpeedStart).TotalSeconds;
|
|
|
|
if(elapsed <= 0)
|
|
continue;
|
|
|
|
currentSpeed = sectorSpeedStart * blockSize / (1048576 * elapsed);
|
|
sectorSpeedStart = 0;
|
|
timeSpeedStart = DateTime.UtcNow;
|
|
}
|
|
|
|
_resume.BadBlocks = _resume.BadBlocks.Distinct().ToList();
|
|
|
|
EndProgress?.Invoke();
|
|
}
|
|
} |