public bool Identify(IFilter imageFilter)
{
Stream stream = imageFilter.GetDataForkStream();
stream.Seek(0, SeekOrigin.Begin);
if (stream.Length < 512)
{
return(false);
}
byte[] pHdrB = new byte[Marshal.SizeOf(cVolumeHeader)];
stream.Read(pHdrB, 0, Marshal.SizeOf(cVolumeHeader));
cVolumeHeader = new PartimageHeader();
IntPtr headerPtr = Marshal.AllocHGlobal(Marshal.SizeOf(cVolumeHeader));
Marshal.Copy(pHdrB, 0, headerPtr, Marshal.SizeOf(cVolumeHeader));
cVolumeHeader = (PartimageHeader)Marshal.PtrToStructure(headerPtr, typeof(PartimageHeader));
Marshal.FreeHGlobal(headerPtr);
return(partimageMagic.SequenceEqual(cVolumeHeader.magic));
}
public bool Open(IFilter imageFilter)
{
Stream stream = imageFilter.GetDataForkStream();
stream.Seek(0, SeekOrigin.Begin);
if (stream.Length < 512)
{
return(false);
}
byte[] hdrB = new byte[Marshal.SizeOf(cVolumeHeader)];
stream.Read(hdrB, 0, Marshal.SizeOf(cVolumeHeader));
cVolumeHeader = new PartimageHeader();
IntPtr headerPtr = Marshal.AllocHGlobal(Marshal.SizeOf(cVolumeHeader));
Marshal.Copy(hdrB, 0, headerPtr, Marshal.SizeOf(cVolumeHeader));
cVolumeHeader = (PartimageHeader)Marshal.PtrToStructure(headerPtr, typeof(PartimageHeader));
Marshal.FreeHGlobal(headerPtr);
DicConsole.DebugWriteLine("Partimage plugin", "CVolumeHeader.magic = {0}",
StringHandlers.CToString(cVolumeHeader.magic));
DicConsole.DebugWriteLine("Partimage plugin", "CVolumeHeader.version = {0}",
StringHandlers.CToString(cVolumeHeader.version));
DicConsole.DebugWriteLine("Partimage plugin", "CVolumeHeader.volumeNumber = {0}",
cVolumeHeader.volumeNumber);
DicConsole.DebugWriteLine("Partimage plugin", "CVolumeHeader.identificator = {0:X16}",
cVolumeHeader.identificator);
// TODO: Support multifile volumes
if (cVolumeHeader.volumeNumber > 0)
{
throw new FeatureSupportedButNotImplementedImageException("Support for multiple volumes not supported");
}
hdrB = new byte[Marshal.SizeOf(cMainHeader)];
stream.Read(hdrB, 0, Marshal.SizeOf(cMainHeader));
cMainHeader = new PartimageMainHeader();
headerPtr = Marshal.AllocHGlobal(Marshal.SizeOf(cMainHeader));
Marshal.Copy(hdrB, 0, headerPtr, Marshal.SizeOf(cMainHeader));
cMainHeader = (PartimageMainHeader)Marshal.PtrToStructure(headerPtr, typeof(PartimageMainHeader));
Marshal.FreeHGlobal(headerPtr);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.szFileSystem = {0}",
StringHandlers.CToString(cMainHeader.szFileSystem));
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.szPartDescription = {0}",
StringHandlers.CToString(cMainHeader.szPartDescription));
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.szOriginalDevice = {0}",
StringHandlers.CToString(cMainHeader.szOriginalDevice));
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.szFirstImageFilepath = {0}",
StringHandlers.CToString(cMainHeader.szFirstImageFilepath));
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.szUnameSysname = {0}",
StringHandlers.CToString(cMainHeader.szUnameSysname));
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.szUnameNodename = {0}",
StringHandlers.CToString(cMainHeader.szUnameNodename));
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.szUnameRelease = {0}",
StringHandlers.CToString(cMainHeader.szUnameRelease));
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.szUnameVersion = {0}",
StringHandlers.CToString(cMainHeader.szUnameVersion));
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.szUnameMachine = {0}",
StringHandlers.CToString(cMainHeader.szUnameMachine));
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dwCompression = {0} ({1})",
cMainHeader.dwCompression, (uint)cMainHeader.dwCompression);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dwMainFlags = {0}", cMainHeader.dwMainFlags);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dateCreate.tm_sec = {0}",
cMainHeader.dateCreate.Second);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dateCreate.tm_min = {0}",
cMainHeader.dateCreate.Minute);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dateCreate.tm_hour = {0}",
cMainHeader.dateCreate.Hour);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dateCreate.tm_mday = {0}",
cMainHeader.dateCreate.DayOfMonth);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dateCreate.tm_mon = {0}",
cMainHeader.dateCreate.Month);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dateCreate.tm_year = {0}",
cMainHeader.dateCreate.Year);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dateCreate.tm_wday = {0}",
cMainHeader.dateCreate.DayOfWeek);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dateCreate.tm_yday = {0}",
cMainHeader.dateCreate.DayOfYear);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dateCreate.tm_isdst = {0}",
cMainHeader.dateCreate.IsDst);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dateCreate.tm_gmtoffsec = {0}",
cMainHeader.dateCreate.GmtOff);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dateCreate.tm_zone = {0}",
cMainHeader.dateCreate.Timezone);
DateTime dateCreate = new DateTime(1900 + (int)cMainHeader.dateCreate.Year,
(int)cMainHeader.dateCreate.Month + 1,
(int)cMainHeader.dateCreate.DayOfMonth, (int)cMainHeader.dateCreate.Hour,
(int)cMainHeader.dateCreate.Minute, (int)cMainHeader.dateCreate.Second);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dateCreate = {0}", dateCreate);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.qwPartSize = {0}", cMainHeader.qwPartSize);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.szHostname = {0}",
StringHandlers.CToString(cMainHeader.szHostname));
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.szVersion = {0}",
StringHandlers.CToString(cMainHeader.szVersion));
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dwMbrCount = {0}", cMainHeader.dwMbrCount);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dwMbrSize = {0}", cMainHeader.dwMbrSize);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dwEncryptAlgo = {0} ({1})",
cMainHeader.dwEncryptAlgo, (uint)cMainHeader.dwEncryptAlgo);
DicConsole.DebugWriteLine("Partimage plugin", "ArrayIsNullOrEmpty(CMainHeader.cHashTestKey) = {0}",
ArrayHelpers.ArrayIsNullOrEmpty(cMainHeader.cHashTestKey));
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dwReservedFuture000 = {0}",
cMainHeader.dwReservedFuture000);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dwReservedFuture001 = {0}",
cMainHeader.dwReservedFuture001);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dwReservedFuture002 = {0}",
cMainHeader.dwReservedFuture002);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dwReservedFuture003 = {0}",
cMainHeader.dwReservedFuture003);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dwReservedFuture004 = {0}",
cMainHeader.dwReservedFuture004);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dwReservedFuture005 = {0}",
cMainHeader.dwReservedFuture005);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dwReservedFuture006 = {0}",
cMainHeader.dwReservedFuture006);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dwReservedFuture007 = {0}",
cMainHeader.dwReservedFuture007);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dwReservedFuture008 = {0}",
cMainHeader.dwReservedFuture008);
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.dwReservedFuture009 = {0}",
cMainHeader.dwReservedFuture009);
DicConsole.DebugWriteLine("Partimage plugin", "ArrayIsNullOrEmpty(CMainHeader.cReserved) = {0}",
ArrayHelpers.ArrayIsNullOrEmpty(cMainHeader.cReserved));
DicConsole.DebugWriteLine("Partimage plugin", "CMainHeader.crc = 0x{0:X8}", cMainHeader.crc);
// partimage 0.6.1 does not support them either
if (cMainHeader.dwEncryptAlgo != PEncryption.None)
{
throw new ImageNotSupportedException("Encrypted images are currently not supported.");
}
string magic;
// Skip MBRs
if (cMainHeader.dwMbrCount > 0)
{
hdrB = new byte[MAGIC_BEGIN_MBRBACKUP.Length];
stream.Read(hdrB, 0, MAGIC_BEGIN_MBRBACKUP.Length);
magic = StringHandlers.CToString(hdrB);
if (!magic.Equals(MAGIC_BEGIN_MBRBACKUP))
{
throw new ImageNotSupportedException("Cannot find MBRs");
}
stream.Seek(cMainHeader.dwMbrSize * cMainHeader.dwMbrCount, SeekOrigin.Current);
}
// Skip extended headers and their CRC fields
stream.Seek((MAGIC_BEGIN_EXT000.Length + 4) * 10, SeekOrigin.Current);
hdrB = new byte[MAGIC_BEGIN_LOCALHEADER.Length];
stream.Read(hdrB, 0, MAGIC_BEGIN_LOCALHEADER.Length);
magic = StringHandlers.CToString(hdrB);
if (!magic.Equals(MAGIC_BEGIN_LOCALHEADER))
{
throw new ImageNotSupportedException("Cannot find local header");
}
hdrB = new byte[Marshal.SizeOf(typeof(CLocalHeader))];
stream.Read(hdrB, 0, Marshal.SizeOf(typeof(CLocalHeader)));
headerPtr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(CLocalHeader)));
Marshal.Copy(hdrB, 0, headerPtr, Marshal.SizeOf(typeof(CLocalHeader)));
CLocalHeader localHeader = (CLocalHeader)Marshal.PtrToStructure(headerPtr, typeof(CLocalHeader));
Marshal.FreeHGlobal(headerPtr);
DicConsole.DebugWriteLine("Partimage plugin", "CLocalHeader.qwBlockSize = {0}", localHeader.qwBlockSize);
DicConsole.DebugWriteLine("Partimage plugin", "CLocalHeader.qwUsedBlocks = {0}", localHeader.qwUsedBlocks);
DicConsole.DebugWriteLine("Partimage plugin", "CLocalHeader.qwBlocksCount = {0}",
localHeader.qwBlocksCount);
DicConsole.DebugWriteLine("Partimage plugin", "CLocalHeader.qwBitmapSize = {0}", localHeader.qwBitmapSize);
DicConsole.DebugWriteLine("Partimage plugin", "CLocalHeader.qwBadBlocksCount = {0}",
localHeader.qwBadBlocksCount);
DicConsole.DebugWriteLine("Partimage plugin", "CLocalHeader.szLabel = {0}",
StringHandlers.CToString(localHeader.szLabel));
DicConsole.DebugWriteLine("Partimage plugin", "ArrayIsNullOrEmpty(CLocalHeader.cReserved) = {0}",
ArrayHelpers.ArrayIsNullOrEmpty(localHeader.cReserved));
DicConsole.DebugWriteLine("Partimage plugin", "CLocalHeader.crc = 0x{0:X8}", localHeader.crc);
hdrB = new byte[MAGIC_BEGIN_BITMAP.Length];
stream.Read(hdrB, 0, MAGIC_BEGIN_BITMAP.Length);
magic = StringHandlers.CToString(hdrB);
if (!magic.Equals(MAGIC_BEGIN_BITMAP))
{
throw new ImageNotSupportedException("Cannot find bitmap");
}
bitmap = new byte[localHeader.qwBitmapSize];
stream.Read(bitmap, 0, (int)localHeader.qwBitmapSize);
hdrB = new byte[MAGIC_BEGIN_INFO.Length];
stream.Read(hdrB, 0, MAGIC_BEGIN_INFO.Length);
magic = StringHandlers.CToString(hdrB);
if (!magic.Equals(MAGIC_BEGIN_INFO))
{
throw new ImageNotSupportedException("Cannot find info block");
}
// Skip info block and its checksum
stream.Seek(16384 + 4, SeekOrigin.Current);
hdrB = new byte[MAGIC_BEGIN_DATABLOCKS.Length];
stream.Read(hdrB, 0, MAGIC_BEGIN_DATABLOCKS.Length);
magic = StringHandlers.CToString(hdrB);
if (!magic.Equals(MAGIC_BEGIN_DATABLOCKS))
{
throw new ImageNotSupportedException("Cannot find data blocks");
}
dataOff = stream.Position;
DicConsole.DebugWriteLine("Partimage plugin", "dataOff = {0}", dataOff);
// Seek to tail
stream.Seek(-(Marshal.SizeOf(typeof(CMainTail)) + MAGIC_BEGIN_TAIL.Length), SeekOrigin.End);
hdrB = new byte[MAGIC_BEGIN_TAIL.Length];
stream.Read(hdrB, 0, MAGIC_BEGIN_TAIL.Length);
magic = StringHandlers.CToString(hdrB);
if (!magic.Equals(MAGIC_BEGIN_TAIL))
{
throw new
ImageNotSupportedException("Cannot find tail. Multiple volumes are not supported or image is corrupt.");
}
DicConsole.DebugWriteLine("Partimage plugin", "Filling extents");
DateTime start = DateTime.Now;
extents = new ExtentsULong();
extentsOff = new Dictionary <ulong, ulong>();
bool current = (bitmap[0] & (1 << (0 % 8))) != 0;
ulong blockOff = 0;
ulong extentStart = 0;
for (ulong i = 1; i <= localHeader.qwBlocksCount; i++)
{
bool next = (bitmap[i / 8] & (1 << (int)(i % 8))) != 0;
// Flux
if (next != current)
{
if (next)
{
extentStart = i;
extentsOff.Add(i, ++blockOff);
}
else
{
extents.Add(extentStart, i);
extentsOff.TryGetValue(extentStart, out ulong _);
}
}
if (next && current)
{
blockOff++;
}
current = next;
}
DateTime end = DateTime.Now;
DicConsole.DebugWriteLine("Partimage plugin", "Took {0} seconds to fill extents",
(end - start).TotalSeconds);
sectorCache = new Dictionary <ulong, byte[]>();
imageInfo.CreationTime = dateCreate;
imageInfo.LastModificationTime = imageFilter.GetLastWriteTime();
imageInfo.MediaTitle = Path.GetFileNameWithoutExtension(imageFilter.GetFilename());
imageInfo.Sectors = localHeader.qwBlocksCount + 1;
imageInfo.SectorSize = (uint)localHeader.qwBlockSize;
imageInfo.XmlMediaType = XmlMediaType.BlockMedia;
imageInfo.MediaType = MediaType.GENERIC_HDD;
imageInfo.Version = StringHandlers.CToString(cMainHeader.szVersion);
imageInfo.Comments = StringHandlers.CToString(cMainHeader.szPartDescription);
imageInfo.ImageSize =
(ulong)(stream.Length - (dataOff + Marshal.SizeOf(typeof(CMainTail)) + MAGIC_BEGIN_TAIL.Length));
imageStream = stream;
return(true);
}
