public Fat16Partition(PartitionInfo info)
{
_info = base.info = info;
diskFileName = String.Format("\\\\.\\{0}:", info.Letter);
rootDirectoryName = String.Format("{0}:\\", info.Letter);
bytesPerSector = GetBytesPerSector();
diskFile = new UnmanagedFile(diskFileName);
byte[] fatInfo = diskFile.ReadFile((uint)bytesPerSector);
fatCopiesNumber = fatInfo.AsWord(16);
fatSize = fatInfo.AsWord(22);
reservedAreaSize = fatInfo.AsWord(14);
sectorsPerCluster = fatInfo.AsByte(13);
fatAddress = reservedAreaSize;
rootDirectoryEntities = fatInfo.AsWord(17);
rootDirectorySector = reservedAreaSize + (fatCopiesNumber * fatSize);
bitsPerSector = GetBitsNumber(bytesPerSector);
bytesPerCluster = bytesPerSector * sectorsPerCluster;
fatContentSize = (uint)(fatSize * bytesPerSector);
fatContent = LoadFatContent();
info.FreeSpace = GetFreeDiskSpace();
currentDirectory = new FatDirectoryObject
{
Name = String.Empty,
Type = DirectoryObjectType.Directory,
Cluster = 0
};
directoryStack.Push(currentDirectory);
LoadCurrentDirectoryObjects();
}
public NtfsPartition(PartitionInfo info)
{
_info = info;
_drive = new DriveInfo(info.Letter.ToString());
info.FreeSpace = (int)(_drive.AvailableFreeSpace / 1024.0 / 1024.0);
_currentDirectory = _drive.RootDirectory;
}
public NtfsPartition(PartitionInfo info)
{
_info = info;
_drive = new DriveInfo(info.Letter.ToString());
info.FreeSpace = (int)(_drive.AvailableFreeSpace / 1024.0 / 1024.0);
_currentDirectory = _drive.RootDirectory;
}
/// <summary>
/// Initializes a new instance of the <see cref="PartitionFactory"/> class.
/// </summary>
/// <param name="info">
/// The partition info.
/// </param>
public PartitionFactory(PartitionInfo info)
{
if (info.Letter == '?')
{
_partition = new Fat16Partition(info);
}
else
{
switch (info.FileSystem)
{
case FileSystemType.Fat16:
_partition = new Fat16Partition(info);
break;
case FileSystemType.Fat32:
_partition = new Fat32Partition(info);
break;
case FileSystemType.Ntfs:
_partition = new NtfsPartition(info);
break;
case FileSystemType.Unknown:
_partition = new Fat16Partition(info);
break;
default:
_partition = new Fat16Partition(info);
break;
}
}
}
public Fat32Partition(PartitionInfo info)
{
_info = base.info = info;
diskFileName = String.Format("\\\\.\\{0}:", info.Letter);
rootDirectoryName = String.Format("{0}:\\", info.Letter);
bytesPerSector = GetBytesPerSector();
diskFile = new UnmanagedFile(diskFileName);
byte[] fatInfo = diskFile.ReadFile(bytesPerSector);
fatCopiesNumber = fatInfo.AsWord(16);
fatSize = fatInfo.AsWord(36);
reservedAreaSize = fatInfo.AsWord(14);
sectorsPerCluster = fatInfo.AsByte(13);
fatAddress = reservedAreaSize;
rootDirectoryCluster = fatInfo.AsInt32(44);
bitsPerSector = GetBitsNumber(bytesPerSector);
bytesPerCluster = bytesPerSector * sectorsPerCluster;
fatContentSize = (uint)(fatSize * bytesPerSector);
fatContent = LoadFatContent();
info.FreeSpace = GetFreeDiskSpace();
currentDirectory = new FatDirectoryObject
{
Name = String.Empty,
Type = DirectoryObjectType.Directory,
Cluster = rootDirectoryCluster
};
directoryStack.Push(currentDirectory);
LoadCurrentDirectoryObjects();
}
/// <summary>
/// Initializes a new instance of the <see cref="PartitionFactory"/> class.
/// </summary>
/// <param name="info">
/// The partition info.
/// </param>
public PartitionFactory(PartitionInfo info)
{
if (info.Letter == '?')
{
_partition = new Fat16Partition(info);
}
else
{
switch (info.FileSystem)
{
case FileSystemType.Fat16:
_partition = new Fat16Partition(info);
break;
case FileSystemType.Fat32:
_partition = new Fat32Partition(info);
break;
case FileSystemType.Ntfs:
_partition = new NtfsPartition(info);
break;
case FileSystemType.Unknown:
_partition = new Fat16Partition(info);
break;
default:
_partition = new Fat16Partition(info);
break;
}
}
}
private IEnumerable <IPartition> GetHddPartitions(byte[] mbr, int additionalOffset = 0)
{
int partitonOffset = 0x1be;
_extendedAreaAddress = 0;
for (int i = 0; i < 4; i++, partitonOffset += 0x10)
{
var info = new PartitionInfo();
info.HddNumber = _number;
info.Extended = additionalOffset != 0;
int id = mbr.AsByte(partitonOffset + 4);
if (id == 0)
{
break;
}
info.Active = mbr.AsByte(partitonOffset + 0) != 0;
int startAddress = mbr.AsInt32(partitonOffset + 8);
if ((id == 5) || (id == 15))
{
_extendedAreaAddress = startAddress;
continue;
}
int sizeInSectors = mbr.AsInt32(partitonOffset + 12);
info.Size = sizeInSectors / 2048 * _sectorSize / 512;
info.FreeSpace = -1;
int absoluteAddress = startAddress + additionalOffset;
info.SerialNumber = GetDiskSn(absoluteAddress, id);
info.Letter = GetDiskLetter(info.SerialNumber);
info.Address = absoluteAddress;
if (info.Letter == '?')
{
// disks.Add(new UnknownDisk(info));
info.FileSystem = FileSystemType.Unknown;
}
switch (id)
{
case 0x01:
case 0x04:
case 0x06:
case 0x0E:
{
// disks.Add(new Fat16Disk(info));
info.FileSystem = FileSystemType.Fat16;
break;
}
case 0x07:
case 0x17:
{
// disks.Add(new NtfsDisk(info));
info.FileSystem = FileSystemType.Ntfs;
break;
}
case 0x0B:
case 0x0C:
case 0x1B:
case 0x1C:
case 0x8B:
case 0x8C:
{
// disks.Add(new Fat32Disk(info));
info.FileSystem = FileSystemType.Fat32;
break;
}
default:
{
// disks.Add(new UnknownDisk(info));
info.FileSystem = FileSystemType.Unknown;
break;
}
}
var partitionFactory = new PartitionFactory(info);
yield return(partitionFactory.Partition);
}
yield break;
}
public UnknownPartition(PartitionInfo info)
{
_info = info;
}
public UnknownPartition(PartitionInfo info)
{
_info = info;
}
private IEnumerable<IPartition> GetHddPartitions(byte[] mbr, int additionalOffset = 0)
{
int partitonOffset = 0x1be;
_extendedAreaAddress = 0;
for (int i = 0; i < 4; i++, partitonOffset += 0x10)
{
var info = new PartitionInfo();
info.HddNumber = _number;
info.Extended = additionalOffset != 0;
int id = mbr.AsByte(partitonOffset + 4);
if (id == 0)
{
break;
}
info.Active = mbr.AsByte(partitonOffset + 0) != 0;
int startAddress = mbr.AsInt32(partitonOffset + 8);
if ((id == 5) || (id == 15))
{
_extendedAreaAddress = startAddress;
continue;
}
int sizeInSectors = mbr.AsInt32(partitonOffset + 12);
info.Size = sizeInSectors / 2048 * _sectorSize / 512;
info.FreeSpace = -1;
int absoluteAddress = startAddress + additionalOffset;
info.SerialNumber = GetDiskSn(absoluteAddress, id);
info.Letter = GetDiskLetter(info.SerialNumber);
info.Address = absoluteAddress;
if (info.Letter == '?')
{
// disks.Add(new UnknownDisk(info));
info.FileSystem = FileSystemType.Unknown;
}
switch (id)
{
case 0x01:
case 0x04:
case 0x06:
case 0x0E:
{
// disks.Add(new Fat16Disk(info));
info.FileSystem = FileSystemType.Fat16;
break;
}
case 0x07:
case 0x17:
{
// disks.Add(new NtfsDisk(info));
info.FileSystem = FileSystemType.Ntfs;
break;
}
case 0x0B:
case 0x0C:
case 0x1B:
case 0x1C:
case 0x8B:
case 0x8C:
{
// disks.Add(new Fat32Disk(info));
info.FileSystem = FileSystemType.Fat32;
break;
}
default:
{
// disks.Add(new UnknownDisk(info));
info.FileSystem = FileSystemType.Unknown;
break;
}
}
var partitionFactory = new PartitionFactory(info);
yield return partitionFactory.Partition;
}
yield break;
}
