/// <summary>
/// Mounts a volume using the TestCrypt driver.
/// </summary>
/// <param name="password">The password of the TrueCrypt volume.</param>
/// <param name="useBackupHeader">True if the embedded backup header should be used to mount the volume, otherwise false.</param>
/// <param name="deviceNo">The device which contains the TrueCrypt volume.</param>
/// <param name="diskOffset">The start offset in bytes of the TrueCrypt volume on the devie.</param>
/// <param name="diskLength">The length of the TrueCrypt volume in bytes.</param>
/// <returns>The drive letter (as number starting from 0 for "A:") which has been used to mount the volume.</returns>
public static int Mount(Password password, bool useBackupHeader, uint deviceNo, long diskOffset, long diskLength)
{
IntPtr mountPtr = IntPtr.Zero;
int dosDriveNo;
try
{
// try to get a available drive letter for the volume
dosDriveNo = GetFirstAvailableDrive();
if (-1 != dosDriveNo)
{
// open/load the TestCrypt driver first
SafeFileHandle hDriver = OpenDriver();
MOUNT_STRUCT mount = new MOUNT_STRUCT();
mount.VolumePassword = password;
mount.ProtectedHidVolPassword.Length = 0;
mount.wszVolume = string.Format("\\Device\\Harddisk{0}\\Partition0", deviceNo);
mount.DiskOffset = diskOffset;
mount.DiskLength = diskLength;
mount.nDosDriveNo = dosDriveNo;
mount.UseBackupHeader = useBackupHeader;
// without enabling the mount manager, the mounted volume won't be visible
mount.bMountManager = true;
// due to security reasons, volumes will be mounted read-only
mount.bMountReadOnly = true;
uint result = 0;
mountPtr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(MOUNT_STRUCT)));
Marshal.StructureToPtr(mount, mountPtr, true);
if (DeviceApi.DeviceIoControl(hDriver, TC_IOCTL_MOUNT_VOLUME, mountPtr, (uint)Marshal.SizeOf(typeof(MOUNT_STRUCT)),
mountPtr, (uint)Marshal.SizeOf(typeof(MOUNT_STRUCT)), ref result, IntPtr.Zero))
{
mount = (MOUNT_STRUCT)Marshal.PtrToStructure(mountPtr, typeof(MOUNT_STRUCT));
if (mount.nReturnCode != 0)
{
throw new TrueCryptException(TrueCryptException.ExceptionCause.DriverIoControlFailed, mount.nReturnCode, "TC_IOCTL_MOUNT_VOLUME", null);
}
else
{
// inform the operating system about new device arrival
BroadcastDeviceChange(DBT_DEVICEARRIVAL, dosDriveNo, 0);
}
}
else
{
Win32Exception ex = new Win32Exception();
throw new TrueCryptException(TrueCryptException.ExceptionCause.DriverIoControlFailed, ex.ErrorCode, "TC_IOCTL_MOUNT_VOLUME", ex.Message);
}
hDriver.Close();
}
else
{
throw new TrueCryptException(TrueCryptException.ExceptionCause.NoDriveLetterAvailable);
}
}
finally
{
if (mountPtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(mountPtr);
}
}
return(dosDriveNo);
}
/// <summary>
/// Mounts a volume using the TestCrypt driver.
/// </summary>
/// <param name="password">The password of the TrueCrypt volume.</param>
/// <param name="useBackupHeader">True if the embedded backup header should be used to mount the volume, otherwise false.</param>
/// <param name="deviceNo">The device which contains the TrueCrypt volume.</param>
/// <param name="diskOffset">The start offset in bytes of the TrueCrypt volume on the devie.</param>
/// <param name="diskLength">The length of the TrueCrypt volume in bytes.</param>
/// <returns>The drive letter (as number starting from 0 for "A:") which has been used to mount the volume.</returns>
public static int Mount(Password password, bool useBackupHeader, uint deviceNo, long diskOffset, long diskLength)
{
IntPtr mountPtr = IntPtr.Zero;
int dosDriveNo;
try
{
// try to get a available drive letter for the volume
dosDriveNo = GetFirstAvailableDrive();
if (-1 != dosDriveNo)
{
// open/load the TestCrypt driver first
SafeFileHandle hDriver = OpenDriver();
MOUNT_STRUCT mount = new MOUNT_STRUCT();
mount.VolumePassword = password;
mount.ProtectedHidVolPassword.Length = 0;
mount.wszVolume = string.Format("\\Device\\Harddisk{0}\\Partition0", deviceNo);
mount.DiskOffset = diskOffset;
mount.DiskLength = diskLength;
mount.nDosDriveNo = dosDriveNo;
mount.UseBackupHeader = useBackupHeader;
// without enabling the mount manager, the mounted volume won't be visible
mount.bMountManager = true;
// due to security reasons, volumes will be mounted read-only
mount.bMountReadOnly = true;
uint result = 0;
mountPtr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(MOUNT_STRUCT)));
Marshal.StructureToPtr(mount, mountPtr, true);
if (DeviceApi.DeviceIoControl(hDriver, TC_IOCTL_MOUNT_VOLUME, mountPtr, (uint)Marshal.SizeOf(typeof(MOUNT_STRUCT)),
mountPtr, (uint)Marshal.SizeOf(typeof(MOUNT_STRUCT)), ref result, IntPtr.Zero))
{
mount = (MOUNT_STRUCT)Marshal.PtrToStructure(mountPtr, typeof(MOUNT_STRUCT));
if (mount.nReturnCode != 0)
{
throw new TrueCryptException(TrueCryptException.ExceptionCause.DriverIoControlFailed, mount.nReturnCode, "TC_IOCTL_MOUNT_VOLUME", null);
}
else
{
// inform the operating system about new device arrival
BroadcastDeviceChange(DBT_DEVICEARRIVAL, dosDriveNo, 0);
}
}
else
{
Win32Exception ex = new Win32Exception();
throw new TrueCryptException(TrueCryptException.ExceptionCause.DriverIoControlFailed, ex.ErrorCode, "TC_IOCTL_MOUNT_VOLUME", ex.Message);
}
hDriver.Close();
}
else
{
throw new TrueCryptException(TrueCryptException.ExceptionCause.NoDriveLetterAvailable);
}
}
finally
{
if (mountPtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(mountPtr);
}
}
return dosDriveNo;
}