private string GetDiskId(int ordinal)
{
VirtualDisk disk = _disks[ordinal];
if (disk.IsPartitioned)
{
Guid guid = disk.Partitions.DiskGuid;
if (guid != Guid.Empty)
{
return("DG" + guid.ToString("B"));
}
}
int sig = disk.Signature;
if (sig != 0)
{
return("DS" + sig.ToString("X8", CultureInfo.InvariantCulture));
}
return("DO" + ordinal);
}
/// <summary>
/// Initializes a new instance of the VolumeManager class.
/// </summary>
/// <param name="initialDisk">The initial disk to add.</param>
public VolumeManager(VirtualDisk initialDisk)
: this()
{
AddDisk(initialDisk);
}
/// <summary>
/// Gets the physical volumes held on a disk.
/// </summary>
/// <param name="disk">The disk to inspect.</param>
/// <returns>An array of volumes.</returns>
/// <remarks>If the disk isn't partitioned, this method returns the entire disk contents
/// as a single volume.</remarks>
public static PhysicalVolumeInfo[] GetPhysicalVolumes(VirtualDisk disk)
{
return(new VolumeManager(disk).GetPhysicalVolumes());
}
/// <summary>
/// Opens an existing virtual disk.
/// </summary>
/// <param name="path">The path of the virtual disk to open, can be a URI.</param>
/// <param name="forceType">Force the detected disk type (<c>null</c> to detect).</param>
/// <param name="access">The desired access to the disk.</param>
/// <param name="user">The user name to use for authentication (if necessary).</param>
/// <param name="password">The password to use for authentication (if necessary).</param>
/// <returns>The Virtual Disk, or <c>null</c> if an unknown disk format.</returns>
/// <remarks>
/// The detected disk type can be forced by specifying a known disk type:
/// RAW, VHD, VMDK, etc.
/// </remarks>
public static VirtualDisk OpenDisk(string path, string forceType, FileAccess access, string user, string password)
{
Uri uri = PathToUri(path);
VirtualDisk result = null;
Type transportType;
if (!DiskTransports.TryGetValue(uri.Scheme.ToUpperInvariant(), out transportType))
{
throw new FileNotFoundException(string.Format(CultureInfo.InvariantCulture, "Unable to parse path '{0}'", path), path);
}
VirtualDiskTransport transport = (VirtualDiskTransport)Activator.CreateInstance(transportType);
try
{
transport.Connect(uri, user, password);
if (transport.IsRawDisk)
{
result = transport.OpenDisk(access);
}
else
{
bool foundFactory;
VirtualDiskFactory factory;
if (!string.IsNullOrEmpty(forceType))
{
foundFactory = TypeMap.TryGetValue(forceType, out factory);
}
else
{
string extension = Path.GetExtension(uri.AbsolutePath).ToUpperInvariant();
if (extension.StartsWith(".", StringComparison.Ordinal))
{
extension = extension.Substring(1);
}
foundFactory = ExtensionMap.TryGetValue(extension, out factory);
}
if (foundFactory)
{
result = factory.OpenDisk(transport.GetFileLocator(), transport.GetFileName(), access);
}
}
if (result != null)
{
result._transport = transport;
transport = null;
}
return(result);
}
finally
{
if (transport != null)
{
transport.Dispose();
}
}
}