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Implements verification on all currently supported disk

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images.
	Implements DC42 CRC calculation.
	Calculates TeleDisk CRC for disk sectors.
	Resolves #2 and bumps version to 2.1.
This commit is contained in:
Natalia Portillo
2014-08-25 05:00:25 +01:00
parent fd60149c37
commit 3a03e3121e
13 changed files with 721 additions and 107 deletions
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126
DiscImageChef/ImagePlugins/CDRWin.cs
View File

@@ -1251,70 +1251,68 @@ namespace DiscImageChef.ImagePlugins
_imageInfo.diskBarcode = discimage.barcode;
_imageInfo.diskType = discimage.disktype;
foreach(CDRWinTrack track in discimage.tracks)
foreach (CDRWinTrack track in discimage.tracks)
{
switch(track.tracktype)
switch (track.tracktype)
{
case CDRWinTrackTypeAudio:
{
if(!_imageInfo.readableSectorTags.Contains(SectorTagType.CDTrackISRC))
if (!_imageInfo.readableSectorTags.Contains(SectorTagType.CDTrackISRC))
_imageInfo.readableSectorTags.Add(SectorTagType.CDTrackISRC);
if(!_imageInfo.readableSectorTags.Contains(SectorTagType.CDTrackFlags))
if (!_imageInfo.readableSectorTags.Contains(SectorTagType.CDTrackFlags))
_imageInfo.readableSectorTags.Add(SectorTagType.CDTrackFlags);
break;
}
case CDRWinTrackTypeCDG:
{
if(!_imageInfo.readableSectorTags.Contains(SectorTagType.CDTrackISRC))
if (!_imageInfo.readableSectorTags.Contains(SectorTagType.CDTrackISRC))
_imageInfo.readableSectorTags.Add(SectorTagType.CDTrackISRC);
if(!_imageInfo.readableSectorTags.Contains(SectorTagType.CDTrackFlags))
if (!_imageInfo.readableSectorTags.Contains(SectorTagType.CDTrackFlags))
_imageInfo.readableSectorTags.Add(SectorTagType.CDTrackFlags);
if(!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorSubchannel))
if (!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorSubchannel))
_imageInfo.readableSectorTags.Add(SectorTagType.CDSectorSubchannel);
break;
}
case CDRWinTrackTypeMode2Formless:
case CDRWinTrackTypeCDI:
{
if(!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorSubHeader))
if (!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorSubHeader))
_imageInfo.readableSectorTags.Add(SectorTagType.CDSectorSubHeader);
if(!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorEDC))
if (!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorEDC))
_imageInfo.readableSectorTags.Add(SectorTagType.CDSectorEDC);
break;
}
case CDRWinTrackTypeMode2Raw:
case CDRWinTrackTypeCDIRaw:
{
if(!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorSync))
if (!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorSync))
_imageInfo.readableSectorTags.Add(SectorTagType.CDSectorSync);
if(!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorHeader))
if (!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorHeader))
_imageInfo.readableSectorTags.Add(SectorTagType.CDSectorHeader);
if(!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorSubHeader))
if (!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorSubHeader))
_imageInfo.readableSectorTags.Add(SectorTagType.CDSectorSubHeader);
if(!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorEDC))
if (!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorEDC))
_imageInfo.readableSectorTags.Add(SectorTagType.CDSectorEDC);
break;
}
case CDRWinTrackTypeMode1Raw:
{
if(!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorSync))
if (!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorSync))
_imageInfo.readableSectorTags.Add(SectorTagType.CDSectorSync);
if(!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorHeader))
if (!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorHeader))
_imageInfo.readableSectorTags.Add(SectorTagType.CDSectorHeader);
if(!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorSubHeader))
if (!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorSubHeader))
_imageInfo.readableSectorTags.Add(SectorTagType.CDSectorSubHeader);
if(!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorECC))
if (!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorECC))
_imageInfo.readableSectorTags.Add(SectorTagType.CDSectorECC);
if(!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorECC_P))
if (!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorECC_P))
_imageInfo.readableSectorTags.Add(SectorTagType.CDSectorECC_P);
if(!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorECC_Q))
if (!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorECC_Q))
_imageInfo.readableSectorTags.Add(SectorTagType.CDSectorECC_Q);
if(!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorEDC))
if (!_imageInfo.readableSectorTags.Contains(SectorTagType.CDSectorEDC))
_imageInfo.readableSectorTags.Add(SectorTagType.CDSectorEDC);
break;
}
default:
break;
}
}
@@ -1928,6 +1926,8 @@ namespace DiscImageChef.ImagePlugins
{
List<Track> tracks = new List<Track>();
UInt64 previousStartSector = 0;
foreach (CDRWinTrack cdr_track in discimage.tracks)
{
Track _track = new Track();
@@ -1936,6 +1936,7 @@ namespace DiscImageChef.ImagePlugins
_track.TrackDescription = cdr_track.title;
if (!cdr_track.indexes.TryGetValue(0, out _track.TrackStartSector))
cdr_track.indexes.TryGetValue(1, out _track.TrackStartSector);
_track.TrackStartSector += previousStartSector;
_track.TrackEndSector = _track.TrackStartSector + cdr_track.sectors - 1;
_track.TrackPregap = cdr_track.pregap;
_track.TrackSession = cdr_track.session;
@@ -1943,6 +1944,7 @@ namespace DiscImageChef.ImagePlugins
_track.TrackType = CDRWinTrackTypeToTrackType(cdr_track.tracktype);
tracks.Add(_track);
previousStartSector = _track.TrackEndSector + 1;
}
return tracks;
@@ -1989,6 +1991,85 @@ namespace DiscImageChef.ImagePlugins
return discimage.sessions;
}
public override bool? VerifySector(UInt64 sectorAddress)
{
byte[] buffer = ReadSectorLong(sectorAddress);
return Checksums.CDChecksums.CheckCDSector(buffer);
}
public override bool? VerifySector(UInt64 sectorAddress, UInt32 track)
{
byte[] buffer = ReadSectorLong(sectorAddress, track);
return Checksums.CDChecksums.CheckCDSector(buffer);
}
public override bool? VerifySectors(UInt64 sectorAddress, UInt32 length, out List<UInt64> FailingLBAs, out List<UInt64> UnknownLBAs)
{
byte[] buffer = ReadSectorsLong(sectorAddress, length);
int bps = (int)(buffer.Length / length);
byte[] sector = new byte[bps];
FailingLBAs = new List<UInt64>();
UnknownLBAs = new List<UInt64>();
for (int i = 0; i < length; i++)
{
Array.Copy(buffer, i * bps, sector, 0, bps);
bool? sectorStatus = Checksums.CDChecksums.CheckCDSector(sector);
switch (sectorStatus)
{
case null:
UnknownLBAs.Add((ulong)i + sectorAddress);
break;
case false:
FailingLBAs.Add((ulong)i + sectorAddress);
break;
}
}
if (UnknownLBAs.Count > 0)
return null;
if (FailingLBAs.Count > 0)
return false;
return true;
}
public override bool? VerifySectors(UInt64 sectorAddress, UInt32 length, UInt32 track, out List<UInt64> FailingLBAs, out List<UInt64> UnknownLBAs)
{
byte[] buffer = ReadSectorsLong(sectorAddress, length, track);
int bps = (int)(buffer.Length / length);
byte[] sector = new byte[bps];
FailingLBAs = new List<UInt64>();
UnknownLBAs = new List<UInt64>();
for (int i = 0; i < length; i++)
{
Array.Copy(buffer, i * bps, sector, 0, bps);
bool? sectorStatus = Checksums.CDChecksums.CheckCDSector(sector);
switch (sectorStatus)
{
case null:
UnknownLBAs.Add((ulong)i + sectorAddress);
break;
case false:
FailingLBAs.Add((ulong)i + sectorAddress);
break;
}
}
if (UnknownLBAs.Count > 0)
return null;
if (FailingLBAs.Count > 0)
return false;
return true;
}
public override bool? VerifyDiskImage()
{
return null;
}
#endregion
#region Private methods
@@ -2168,6 +2249,7 @@ namespace DiscImageChef.ImagePlugins
{
return _imageInfo.imageCreator;
}
#endregion
}
}

96
DiscImageChef/ImagePlugins/DiskCopy42.cs
View File

@@ -373,6 +373,83 @@ namespace DiscImageChef.ImagePlugins
return true;
}
public override bool? VerifySector(UInt64 sectorAddress)
{
return null;
}
public override bool? VerifySector(UInt64 sectorAddress, UInt32 track)
{
return null;
}
public override bool? VerifySectors(UInt64 sectorAddress, UInt32 length, out List<UInt64> FailingLBAs, out List<UInt64> UnknownLBAs)
{
FailingLBAs = new List<UInt64>();
UnknownLBAs = new List<UInt64>();
for (UInt64 i = sectorAddress; i < sectorAddress + length; i++)
UnknownLBAs.Add(i);
return null;
}
public override bool? VerifySectors(UInt64 sectorAddress, UInt32 length, UInt32 track, out List<UInt64> FailingLBAs, out List<UInt64> UnknownLBAs)
{
FailingLBAs = new List<UInt64>();
UnknownLBAs = new List<UInt64>();
for (UInt64 i = sectorAddress; i < sectorAddress + length; i++)
UnknownLBAs.Add(i);
return null;
}
public override bool? VerifyDiskImage()
{
byte[] data = new byte[header.dataSize];
byte[] tags = new byte[header.tagSize];
UInt32 dataChk;
UInt32 tagsChk = 0;
if (MainClass.isDebug)
Console.WriteLine("DEBUG (DC42 plugin): Reading data");
FileStream datastream = new FileStream(dc42ImagePath, FileMode.Open, FileAccess.Read);
datastream.Seek((long)(dataOffset), SeekOrigin.Begin);
datastream.Read(data, 0, (int)header.dataSize);
datastream.Close();
if (MainClass.isDebug)
Console.WriteLine("DEBUG (DC42 plugin): Calculating data checksum");
dataChk = DC42CheckSum(data);
if (MainClass.isDebug)
{
Console.WriteLine("DEBUG (DC42 plugin): Calculated data checksum = 0x{0:X8}", dataChk);
Console.WriteLine("DEBUG (DC42 plugin): Stored data checksum = 0x{0:X8}", header.dataChecksum);
}
if (header.tagSize > 0)
{
if (MainClass.isDebug)
Console.WriteLine("DEBUG (DC42 plugin): Reading tags");
FileStream tagstream = new FileStream(dc42ImagePath, FileMode.Open, FileAccess.Read);
tagstream.Seek((long)(tagOffset), SeekOrigin.Begin);
tagstream.Read(tags, 0, (int)header.tagSize);
tagstream.Close();
if (MainClass.isDebug)
Console.WriteLine("DEBUG (DC42 plugin): Calculating data checksum");
tagsChk = DC42CheckSum(data);
if (MainClass.isDebug)
{
Console.WriteLine("DEBUG (DC42 plugin): Calculated data checksum = 0x{0:X8}", tagsChk);
Console.WriteLine("DEBUG (DC42 plugin): Stored data checksum = 0x{0:X8}", header.tagChecksum);
}
}
return dataChk == header.dataChecksum && tagsChk == header.tagChecksum;
}
public override bool ImageHasPartitions()
{
return _imageInfo.imageHasPartitions;
@@ -640,6 +717,25 @@ namespace DiscImageChef.ImagePlugins
}
#endregion Unsupported features
#region Private methods
private static UInt32 DC42CheckSum(byte[] buffer)
{
UInt32 dc42chk = 0;
if ((buffer.Length & 0x01) == 0x01)
return 0xFFFFFFFF;
for (UInt32 i = 0; i < buffer.Length; i += 2)
{
dc42chk += (uint)(buffer[i] << 8);
dc42chk += buffer[i + 1];
dc42chk = (dc42chk >> 1) | (dc42chk << 31);
}
return dc42chk;
}
#endregion
}
}

66
DiscImageChef/ImagePlugins/ImagePlugin.cs
View File

@@ -108,7 +108,6 @@ namespace DiscImageChef.ImagePlugins
/// <param name="tag">Tag type to read.</param>
public abstract byte[] ReadDiskTag(DiskTagType tag);
// Gets a disk tag
/// <summary>
/// Reads a sector's user data.
/// </summary>
@@ -370,7 +369,50 @@ namespace DiscImageChef.ImagePlugins
/// </summary>
/// <returns>The sessions.</returns>
public abstract List<Session> GetSessions();
// Returns disc sessions
/// <summary>
/// Verifies a sector.
/// </summary>
/// <returns>True if correct, false if incorrect, null if uncheckable.</returns>
/// <param name="sectorAddress">Sector address (LBA).</param>
public abstract bool? VerifySector(UInt64 sectorAddress);
/// <summary>
/// Verifies a sector, relative to track.
/// </summary>
/// <returns>True if correct, false if incorrect, null if uncheckable.</returns>
/// <param name="sectorAddress">Sector address (relative LBA).</param>
/// <param name="track">Track.</param>
public abstract bool? VerifySector(UInt64 sectorAddress, UInt32 track);
/// <summary>
/// Verifies several sectors.
/// </summary>
/// <returns>True if all are correct, false if any is incorrect, null if any is uncheckable.</returns>
/// <param name="sectorAddress">Starting sector address (LBA).</param>
/// <param name="length">How many sectors to read.</param>
/// <param name="FailingLBAs">List of incorrect sectors</param>
/// <param name="UnknownLBAs">List of uncheckable sectors</param>
public abstract bool? VerifySectors(UInt64 sectorAddress, UInt32 length, out List<UInt64> FailingLBAs, out List<UInt64> UnknownLBAs);
/// <summary>
/// Verifies several sectors, relative to track.
/// </summary>
/// <returns>True if all are correct, false if any is incorrect, null if any is uncheckable.</returns>
/// <param name="sectorAddress">Starting sector address (relative LBA).</param>
/// <param name="length">How many sectors to read.</param>
/// <param name="track">Track.</param>
/// <param name="FailingLBAs">List of incorrect sectors</param>
/// <param name="UnknownLBAs">List of uncheckable sectors</param>
public abstract bool? VerifySectors(UInt64 sectorAddress, UInt32 length, UInt32 track, out List<UInt64> FailingLBAs, out List<UInt64> UnknownLBAs);
/// <summary>
/// Verifies disk image internal checksum.
/// </summary>
/// <returns>True if correct, false if incorrect, null if there is no internal checksum available</returns>
public abstract bool? VerifyDiskImage();
// CD flags bitmask
@@ -719,8 +761,9 @@ namespace DiscImageChef.ImagePlugins
FDFORMAT_35_HD,
// Generic hard disks
GENERIC_HDD
};
GENERIC_HDD}
;
/// <summary>
/// Track (as partitioning element) types.
@@ -738,8 +781,9 @@ namespace DiscImageChef.ImagePlugins
/// <summary>Data track, compact disc mode 2, form 1</summary>
CDMode2Form1,
/// <summary>Data track, compact disc mode 2, form 2</summary>
CDMode2Form2
};
CDMode2Form2}
;
/// <summary>
/// Track defining structure.
@@ -811,8 +855,9 @@ namespace DiscImageChef.ImagePlugins
/// <summary>CD track flags, 1 byte</summary>
CDTrackFlags,
/// <summary>DVD sector copyright information</summary>
DVD_CMI
};
DVD_CMI}
;
/// <summary>
/// Metadata present for each disk.
@@ -834,8 +879,9 @@ namespace DiscImageChef.ImagePlugins
/// <summary>DVD Copyright Management Information</summary>
DVD_CMI,
/// <summary>DVD Disc Manufacturer Information</summary>
DVD_DMI
};
DVD_DMI}
;
/// <summary>
/// Feature is supported by image but not implemented yet.

81
DiscImageChef/ImagePlugins/Nero.cs
View File

@@ -2010,7 +2010,7 @@ namespace DiscImageChef.ImagePlugins
}
break;
}
// TODO
// TODO
case DAOMode.DataM2RawSub:
throw new FeatureSupportedButNotImplementedImageException("Feature not yet implemented");
case DAOMode.DataRawSub:
@@ -2291,6 +2291,85 @@ namespace DiscImageChef.ImagePlugins
return imageSessions;
}
public override bool? VerifySector(UInt64 sectorAddress)
{
byte[] buffer = ReadSectorLong(sectorAddress);
return Checksums.CDChecksums.CheckCDSector(buffer);
}
public override bool? VerifySector(UInt64 sectorAddress, UInt32 track)
{
byte[] buffer = ReadSectorLong(sectorAddress, track);
return Checksums.CDChecksums.CheckCDSector(buffer);
}
public override bool? VerifySectors(UInt64 sectorAddress, UInt32 length, out List<UInt64> FailingLBAs, out List<UInt64> UnknownLBAs)
{
byte[] buffer = ReadSectorsLong(sectorAddress, length);
int bps = (int)(buffer.Length / length);
byte[] sector = new byte[bps];
FailingLBAs = new List<UInt64>();
UnknownLBAs = new List<UInt64>();
for (int i = 0; i < length; i++)
{
Array.Copy(buffer, i * bps, sector, 0, bps);
bool? sectorStatus = Checksums.CDChecksums.CheckCDSector(sector);
switch (sectorStatus)
{
case null:
UnknownLBAs.Add((ulong)i + sectorAddress);
break;
case false:
FailingLBAs.Add((ulong)i + sectorAddress);
break;
}
}
if (UnknownLBAs.Count > 0)
return null;
if (FailingLBAs.Count > 0)
return false;
return true;
}
public override bool? VerifySectors(UInt64 sectorAddress, UInt32 length, UInt32 track, out List<UInt64> FailingLBAs, out List<UInt64> UnknownLBAs)
{
byte[] buffer = ReadSectorsLong(sectorAddress, length, track);
int bps = (int)(buffer.Length / length);
byte[] sector = new byte[bps];
FailingLBAs = new List<UInt64>();
UnknownLBAs = new List<UInt64>();
for (int i = 0; i < length; i++)
{
Array.Copy(buffer, i * bps, sector, 0, bps);
bool? sectorStatus = Checksums.CDChecksums.CheckCDSector(sector);
switch (sectorStatus)
{
case null:
UnknownLBAs.Add((ulong)i + sectorAddress);
break;
case false:
FailingLBAs.Add((ulong)i + sectorAddress);
break;
}
}
if (UnknownLBAs.Count > 0)
return null;
if (FailingLBAs.Count > 0)
return false;
return true;
}
public override bool? VerifyDiskImage()
{
return null;
}
#endregion
#region Private methods

193
DiscImageChef/ImagePlugins/TeleDisk.cs
View File

@@ -47,6 +47,7 @@ namespace DiscImageChef.ImagePlugins
class TeleDisk : ImagePlugin
{
#region Internal Structures
struct TD0Header
{
// "TD" or "td" depending on compression
@@ -122,7 +123,7 @@ namespace DiscImageChef.ImagePlugins
}
#endregion
#region Internal Constants
// "TD" as little endian uint.
@@ -186,13 +187,18 @@ namespace DiscImageChef.ImagePlugins
const byte dataBlockRLE = 0x02;
#endregion
#region Internal variables
TD0Header header;
TDCommentBlockHeader commentHeader;
byte[] commentBlock;
Dictionary<UInt32, byte[]> sectorsData; // LBA, data
Dictionary<UInt32, byte[]> sectorsData;
// LBA, data
UInt32 totalDiskSize;
bool ADiskCRCHasFailed;
List<UInt64> SectorsWhereCRCHasFailed;
#endregion
#region Accesible variables
@@ -231,6 +237,8 @@ namespace DiscImageChef.ImagePlugins
_imageInfo.driveManufacturer = null;
_imageInfo.driveModel = null;
_imageInfo.driveSerialNumber = null;
ADiskCRCHasFailed = false;
SectorsWhereCRCHasFailed = new List<UInt64>();
}
public override bool IdentifyImage(string imagePath)
@@ -295,7 +303,7 @@ namespace DiscImageChef.ImagePlugins
return true;
}
public override bool OpenImage(string imagePath)
{
header = new TD0Header();
@@ -346,8 +354,12 @@ namespace DiscImageChef.ImagePlugins
// This may deny legal images
// That would be much of a coincidence
if (header.crc != calculatedHeaderCRC && MainClass.isDebug)
Console.WriteLine("DEBUG (TeleDisk plugin): Calculated CRC does not coincide with stored one.");
if (header.crc != calculatedHeaderCRC)
{
ADiskCRCHasFailed = true;
if (MainClass.isDebug)
Console.WriteLine("DEBUG (TeleDisk plugin): Calculated CRC does not coincide with stored one.");
}
if (header.sequence != 0x00)
return false;
@@ -390,7 +402,7 @@ namespace DiscImageChef.ImagePlugins
UInt16 cmtcrc = TeleDiskCRC(0, commentBlockForCRC);
if(MainClass.isDebug)
if (MainClass.isDebug)
{
Console.WriteLine("DEBUG (TeleDisk plugin): Comment header");
Console.WriteLine("DEBUG (TeleDisk plugin): \tcommentheader.crc = 0x{0:X4}", commentHeader.crc);
@@ -404,23 +416,25 @@ namespace DiscImageChef.ImagePlugins
Console.WriteLine("DEBUG (TeleDisk plugin): \tcommentheader.second = {0}", commentHeader.second);
}
for(int i=0;i<commentBlock.Length;i++)
ADiskCRCHasFailed |= cmtcrc != commentHeader.crc;
for (int i = 0; i < commentBlock.Length; i++)
{
// Replace NULLs, used by TeleDisk as newline markers, with UNIX newline marker
if(commentBlock[i]==0x00)
commentBlock[i]=0x0A;
if (commentBlock[i] == 0x00)
commentBlock[i] = 0x0A;
}
_imageInfo.imageComments = System.Text.Encoding.ASCII.GetString(commentBlock);
if(MainClass.isDebug)
if (MainClass.isDebug)
{
Console.WriteLine("DEBUG (TeleDisk plugin): Comment");
Console.WriteLine("DEBUG (TeleDisk plugin): {0}", _imageInfo.imageComments);
}
_imageInfo.imageCreationTime = new DateTime(commentHeader.year+1900, commentHeader.month+1, commentHeader.day,
commentHeader.hour, commentHeader.minute, commentHeader.second, DateTimeKind.Unspecified);
_imageInfo.imageCreationTime = new DateTime(commentHeader.year + 1900, commentHeader.month + 1, commentHeader.day,
commentHeader.hour, commentHeader.minute, commentHeader.second, DateTimeKind.Unspecified);
}
FileInfo fi = new FileInfo(imagePath);
@@ -468,6 +482,8 @@ namespace DiscImageChef.ImagePlugins
Console.WriteLine("DEBUG (TeleDisk plugin): \tTrack header CRC: 0x{0:X2} (calculated 0x{1:X2})\t", TDTrack.crc, TDTrackCalculatedCRC);
}
ADiskCRCHasFailed |= TDTrackCalculatedCRC != TDTrack.crc;
if (TDTrack.sectors == 0xFF) // End of disk image
{
if (MainClass.isDebug)
@@ -529,6 +545,17 @@ namespace DiscImageChef.ImagePlugins
}
decodedData = DecodeTeleDiskData(TDSector.sectorSize, TDData.dataEncoding, data);
byte TDSectorCalculatedCRC = (byte)(TeleDiskCRC(0, decodedData) & 0xFF);
if (TDSectorCalculatedCRC != TDSector.crc)
{
if (MainClass.isDebug)
Console.WriteLine("DEBUG (TeleDisk plugin): Sector LBA {0} calculated CRC 0x{1:X2} differs from stored CRC 0x{2:X2}", LBA, TDSectorCalculatedCRC, TDSector.crc);
if ((TDSector.flags & FlagsSectorNoID) != FlagsSectorNoID)
if (!sectorsData.ContainsKey(LBA) && (TDSector.flags & FlagsSectorDuplicate) != FlagsSectorDuplicate)
SectorsWhereCRCHasFailed.Add((UInt64)LBA);
}
}
else
{
@@ -598,32 +625,32 @@ namespace DiscImageChef.ImagePlugins
stream.Close();
return true;
}
public override bool ImageHasPartitions()
{
return _imageInfo.imageHasPartitions;
}
public override UInt64 GetImageSize()
{
return _imageInfo.imageSize;
}
public override UInt64 GetSectors()
{
return _imageInfo.sectors;
}
public override UInt32 GetSectorSize()
{
return _imageInfo.sectorSize;
}
public override byte[] ReadSector(UInt64 sectorAddress)
{
return ReadSectors(sectorAddress, 1);
}
public override byte[] ReadSectors(UInt64 sectorAddress, UInt32 length)
{
if (sectorAddress > (ulong)sectorsData.Count - 1)
@@ -643,7 +670,7 @@ namespace DiscImageChef.ImagePlugins
byte[] sector;
if(!sectorsData.TryGetValue((uint)i, out sector))
if (!sectorsData.TryGetValue((uint)i, out sector))
throw new ImageNotSupportedException(String.Format("Error reading sector {0}", i));
if (first)
@@ -662,58 +689,97 @@ namespace DiscImageChef.ImagePlugins
return data;
}
public override byte[] ReadSectorLong(UInt64 sectorAddress)
{
return ReadSectors(sectorAddress, 1);
}
public override byte[] ReadSectorsLong(UInt64 sectorAddress, UInt32 length)
{
return ReadSectors(sectorAddress, length);
}
public override string GetImageFormat()
{
return "Sydex TeleDisk";
}
public override string GetImageVersion()
{
return _imageInfo.imageVersion;
}
public override string GetImageApplication()
{
return _imageInfo.imageApplication;
}
public override string GetImageApplicationVersion()
{
return _imageInfo.imageApplicationVersion;
}
public override DateTime GetImageCreationTime()
{
return _imageInfo.imageCreationTime;
}
public override DateTime GetImageLastModificationTime()
{
return _imageInfo.imageLastModificationTime;
}
public override string GetImageName()
{
return _imageInfo.imageName;
}
public override DiskType GetDiskType()
{
return _imageInfo.diskType;
}
public override bool? VerifySector(UInt64 sectorAddress)
{
return !SectorsWhereCRCHasFailed.Contains(sectorAddress);
}
public override bool? VerifySector(UInt64 sectorAddress, UInt32 track)
{
return null;
}
public override bool? VerifySectors(UInt64 sectorAddress, UInt32 length, out List<UInt64> FailingLBAs, out List<UInt64> UnknownLBAs)
{
FailingLBAs = new List<UInt64>();
UnknownLBAs = new List<UInt64>();
for (UInt64 i = sectorAddress; i < sectorAddress + length; i++)
if (SectorsWhereCRCHasFailed.Contains(sectorAddress))
FailingLBAs.Add(sectorAddress);
return FailingLBAs.Count <= 0;
}
public override bool? VerifySectors(UInt64 sectorAddress, UInt32 length, UInt32 track, out List<UInt64> FailingLBAs, out List<UInt64> UnknownLBAs)
{
FailingLBAs = new List<UInt64>();
UnknownLBAs = new List<UInt64>();
for (UInt64 i = sectorAddress; i < sectorAddress + length; i++)
UnknownLBAs.Add(i);
return null;
}
public override bool? VerifyDiskImage()
{
return ADiskCRCHasFailed;
}
#region Private methods
static UInt16 TeleDiskCRC(UInt16 crc, byte[] buffer)
{
int counter = 0;
@@ -782,7 +848,7 @@ namespace DiscImageChef.ImagePlugins
repeatNumber = BitConverter.ToUInt16(encodedData, ins);
Array.Copy(encodedData, ins + 2, repeatValue, 0, 2);
byte[] decodedPiece = new byte[repeatNumber*2];
byte[] decodedPiece = new byte[repeatNumber * 2];
ArrayHelpers.ArrayFill(decodedPiece, repeatValue);
Array.Copy(decodedPiece, 0, decodedData, outs, decodedPiece.Length);
ins += 4;
@@ -845,7 +911,7 @@ namespace DiscImageChef.ImagePlugins
return decodedData;
}
private DiskType DecodeTeleDiskDiskType()
DiskType DecodeTeleDiskDiskType()
{
switch (header.driveType)
{
@@ -858,7 +924,7 @@ namespace DiscImageChef.ImagePlugins
case 163840:
{
// Acorn disk uses 256 bytes/sector
if(_imageInfo.sectorSize == 256)
if (_imageInfo.sectorSize == 256)
return DiskType.ACORN_525_SS_DD_40;
else // DOS disks use 512 bytes/sector
return DiskType.DOS_525_SS_DD_8;
@@ -866,7 +932,7 @@ namespace DiscImageChef.ImagePlugins
case 184320:
{
// Atari disk uses 256 bytes/sector
if(_imageInfo.sectorSize == 256)
if (_imageInfo.sectorSize == 256)
return DiskType.ATARI_525_DD;
else // DOS disks use 512 bytes/sector
return DiskType.DOS_525_SS_DD_9;
@@ -874,7 +940,7 @@ namespace DiscImageChef.ImagePlugins
case 327680:
{
// Acorn disk uses 256 bytes/sector
if(_imageInfo.sectorSize == 256)
if (_imageInfo.sectorSize == 256)
return DiskType.ACORN_525_SS_DD_80;
else // DOS disks use 512 bytes/sector
return DiskType.DOS_525_DS_DD_8;
@@ -994,7 +1060,7 @@ namespace DiscImageChef.ImagePlugins
case 512512:
{
// DEC disk uses 256 bytes/sector
if(_imageInfo.sectorSize == 256)
if (_imageInfo.sectorSize == 256)
return DiskType.RX02;
else // ECMA disks use 128 bytes/sector
return DiskType.ECMA_59;
@@ -1024,140 +1090,141 @@ namespace DiscImageChef.ImagePlugins
}
}
#endregion
#region Unsupported features
public override byte[] ReadSectorTag(UInt64 sectorAddress, SectorTagType tag)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override byte[] ReadSectorsTag(UInt64 sectorAddress, UInt32 length, SectorTagType tag)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override byte[] ReadDiskTag(DiskTagType tag)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override string GetImageCreator()
{
return _imageInfo.imageCreator;
}
public override string GetImageComments()
{
return _imageInfo.imageComments;
}
public override string GetDiskManufacturer()
{
return _imageInfo.diskManufacturer;
}
public override string GetDiskModel()
{
return _imageInfo.diskModel;
}
public override string GetDiskSerialNumber()
{
return _imageInfo.diskSerialNumber;
}
public override string GetDiskBarcode()
{
return _imageInfo.diskBarcode;
}
public override string GetDiskPartNumber()
{
return _imageInfo.diskPartNumber;
}
public override int GetDiskSequence()
{
return _imageInfo.diskSequence;
}
public override int GetLastDiskSequence()
{
return _imageInfo.lastDiskSequence;
}
public override string GetDriveManufacturer()
{
return _imageInfo.driveManufacturer;
}
public override string GetDriveModel()
{
return _imageInfo.driveModel;
}
public override string GetDriveSerialNumber()
{
return _imageInfo.driveSerialNumber;
}
public override List<PartPlugins.Partition> GetPartitions()
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override List<Track> GetTracks()
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override List<Track> GetSessionTracks(Session session)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override List<Track> GetSessionTracks(UInt16 session)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override List<Session> GetSessions()
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override byte[] ReadSector(UInt64 sectorAddress, UInt32 track)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override byte[] ReadSectorTag(UInt64 sectorAddress, UInt32 track, SectorTagType tag)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override byte[] ReadSectors(UInt64 sectorAddress, UInt32 length, UInt32 track)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override byte[] ReadSectorsTag(UInt64 sectorAddress, UInt32 length, UInt32 track, SectorTagType tag)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override byte[] ReadSectorLong(UInt64 sectorAddress, UInt32 track)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
public override byte[] ReadSectorsLong(UInt64 sectorAddress, UInt32 length, UInt32 track)
{
throw new FeatureUnsupportedImageException("Feature not supported by image format");
}
#endregion Unsupported features
}
}

41
DiscImageChef/ImagePlugins/ZZZRawImage.cs
View File

@@ -46,8 +46,10 @@ namespace DiscImageChef.ImagePlugins
class ZZZRawImage : ImagePlugin
{
#region Internal variables
string rawImagePath;
bool differentTrackZeroSize;
#endregion
#region Accesible variables
@@ -356,7 +358,45 @@ namespace DiscImageChef.ImagePlugins
return _imageInfo.diskType;
}
public override bool? VerifySector(UInt64 sectorAddress)
{
return null;
}
public override bool? VerifySector(UInt64 sectorAddress, UInt32 track)
{
return null;
}
public override bool? VerifySectors(UInt64 sectorAddress, UInt32 length, out List<UInt64> FailingLBAs, out List<UInt64> UnknownLBAs)
{
FailingLBAs = new List<UInt64>();
UnknownLBAs = new List<UInt64>();
for (UInt64 i = sectorAddress; i < sectorAddress + length; i++)
UnknownLBAs.Add(i);
return null;
}
public override bool? VerifySectors(UInt64 sectorAddress, UInt32 length, UInt32 track, out List<UInt64> FailingLBAs, out List<UInt64> UnknownLBAs)
{
FailingLBAs = new List<UInt64>();
UnknownLBAs = new List<UInt64>();
for (UInt64 i = sectorAddress; i < sectorAddress + length; i++)
UnknownLBAs.Add(i);
return null;
}
public override bool? VerifyDiskImage()
{
return null;
}
#region Private methods
private DiskType CalculateDiskType()
{
if (_imageInfo.sectorSize == 2048)
@@ -492,6 +532,7 @@ namespace DiscImageChef.ImagePlugins
}
}
}
#endregion
#region Unsupported features