private void Create(VirtualDiskType type, long size, VirtualDiskCreateOptions options, int blockSize, int sectorSize, bool createAsync)
{
var parameters = new NativeMethods.CREATE_VIRTUAL_DISK_PARAMETERS();
parameters.Version = NativeMethods.CREATE_VIRTUAL_DISK_VERSION.CREATE_VIRTUAL_DISK_VERSION_1;
if (blockSize == 0) {
//parameters.Version1.BlockSizeInBytes = NativeMethods.CREATE_VIRTUAL_DISK_PARAMETERS_DEFAULT_BLOCK_SIZE; //blocks if you set it
parameters.Version1.BlockSizeInBytes = 0;
} else {
parameters.Version1.BlockSizeInBytes = blockSize;
}
parameters.Version1.MaximumSize = size;
parameters.Version1.ParentPath = IntPtr.Zero;
if (sectorSize == 0) {
parameters.Version1.SectorSizeInBytes = NativeMethods.CREATE_VIRTUAL_DISK_PARAMETERS_DEFAULT_SECTOR_SIZE;
} else {
parameters.Version1.SectorSizeInBytes = sectorSize;
}
parameters.Version1.SourcePath = IntPtr.Zero;
parameters.Version1.UniqueId = Guid.Empty;
var storageType = new NativeMethods.VIRTUAL_STORAGE_TYPE();
switch (type) {
case VirtualDiskType.AutoDetect:
if (this.FileName.EndsWith(".iso", StringComparison.OrdinalIgnoreCase)) {
throw new InvalidOperationException("Cannot create iso file.");
} else if (this.FileName.EndsWith(".vhdx", StringComparison.OrdinalIgnoreCase)) {
storageType.DeviceId = NativeMethods.VIRTUAL_STORAGE_TYPE_DEVICE_VHDX;
} else {
storageType.DeviceId = NativeMethods.VIRTUAL_STORAGE_TYPE_DEVICE_VHD;
}
break;
case VirtualDiskType.Vhd:
storageType.DeviceId = NativeMethods.VIRTUAL_STORAGE_TYPE_DEVICE_VHD;
break;
case VirtualDiskType.Vhdx:
storageType.DeviceId = NativeMethods.VIRTUAL_STORAGE_TYPE_DEVICE_VHDX;
break;
case VirtualDiskType.Iso: throw new InvalidOperationException("Cannot create iso file.");
}
storageType.VendorId = NativeMethods.VIRTUAL_STORAGE_TYPE_VENDOR_MICROSOFT;
int res;
if (createAsync) {
this._createOverlapEvent = new ManualResetEvent(false);
this._createOverlap = new NativeOverlapped();
this._createOverlap.OffsetLow = 0;
this._createOverlap.OffsetHigh = 0;
#pragma warning disable 0618
this._createOverlap.EventHandle = this._createOverlapEvent.Handle;
#pragma warning restore 0618
res = NativeMethods.CreateVirtualDisk(ref storageType, this.FileName, NativeMethods.VIRTUAL_DISK_ACCESS_MASK.VIRTUAL_DISK_ACCESS_ALL, IntPtr.Zero, (NativeMethods.CREATE_VIRTUAL_DISK_FLAG)options, 0, ref parameters, ref _createOverlap, ref _handle);
} else {
res = NativeMethods.CreateVirtualDisk(ref storageType, this.FileName, NativeMethods.VIRTUAL_DISK_ACCESS_MASK.VIRTUAL_DISK_ACCESS_ALL, IntPtr.Zero, (NativeMethods.CREATE_VIRTUAL_DISK_FLAG)options, 0, ref parameters, IntPtr.Zero, ref _handle);
}
if (res == NativeMethods.ERROR_SUCCESS) {
} else if (res == NativeMethods.ERROR_IO_PENDING) {
} else {
_handle.SetHandleAsInvalid();
if ((res == NativeMethods.ERROR_FILE_NOT_FOUND) || (res == NativeMethods.ERROR_PATH_NOT_FOUND)) {
throw new FileNotFoundException("File not found.");
} else if (res == NativeMethods.ERROR_FILE_CORRUPT) {
throw new InvalidDataException("File type not recognized.");
} else if (res == NativeMethods.ERROR_FILE_EXISTS) {
throw new IOException("File already exists.");
} else if (res == NativeMethods.ERROR_FILE_SYSTEM_LIMITATION) {
throw new IOException("Virtual disk creation could not be completed due to a file system limitation.");
} else if (res == NativeMethods.ERROR_INVALID_PARAMETER) {
throw new ArgumentException("Invalid parameter.", "size");
} else {
throw new Win32Exception(res);
}
}
}
/// <summary>
/// Opens connection to file.
/// </summary>
/// <param name="fileAccess">Defines required access.</param>
/// <param name="type">Disk type.</param>
/// <exception cref="System.ComponentModel.Win32Exception">Native error.</exception>
/// <exception cref="System.IO.FileNotFoundException">File not found.</exception>
/// <exception cref="System.IO.InvalidDataException">File type not recognized.</exception>
private void Open(VirtualDiskAccessMask fileAccess, VirtualDiskType type)
{
var parameters = new NativeMethods.OPEN_VIRTUAL_DISK_PARAMETERS();
parameters.Version = NativeMethods.OPEN_VIRTUAL_DISK_VERSION.OPEN_VIRTUAL_DISK_VERSION_1;
parameters.Version1.RWDepth = NativeMethods.OPEN_VIRTUAL_DISK_RW_DEPTH_DEFAULT;
var storageType = new NativeMethods.VIRTUAL_STORAGE_TYPE();
switch (type) {
case VirtualDiskType.AutoDetect:
if (this.FileName.EndsWith(".iso", StringComparison.OrdinalIgnoreCase)) {
storageType.DeviceId = NativeMethods.VIRTUAL_STORAGE_TYPE_DEVICE_ISO;
fileAccess = ((fileAccess & VirtualDiskAccessMask.GetInfo) == VirtualDiskAccessMask.GetInfo) ? VirtualDiskAccessMask.GetInfo : 0;
fileAccess |= VirtualDiskAccessMask.AttachReadOnly;
this.DiskType = VirtualDiskType.Iso;
} else if (this.FileName.EndsWith(".vhdx", StringComparison.OrdinalIgnoreCase)) {
storageType.DeviceId = NativeMethods.VIRTUAL_STORAGE_TYPE_DEVICE_VHDX;
this.DiskType = VirtualDiskType.Vhdx;
} else {
storageType.DeviceId = NativeMethods.VIRTUAL_STORAGE_TYPE_DEVICE_VHD;
this.DiskType = VirtualDiskType.Vhd;
}
break;
case VirtualDiskType.Iso: storageType.DeviceId = NativeMethods.VIRTUAL_STORAGE_TYPE_DEVICE_ISO;
fileAccess = ((fileAccess & VirtualDiskAccessMask.GetInfo) == VirtualDiskAccessMask.GetInfo) ? VirtualDiskAccessMask.GetInfo : 0;
fileAccess |= VirtualDiskAccessMask.AttachReadOnly;
this.DiskType = VirtualDiskType.Iso;
break;
case VirtualDiskType.Vhd:
storageType.DeviceId = NativeMethods.VIRTUAL_STORAGE_TYPE_DEVICE_VHD;
this.DiskType = VirtualDiskType.Vhd;
break;
case VirtualDiskType.Vhdx:
storageType.DeviceId = NativeMethods.VIRTUAL_STORAGE_TYPE_DEVICE_VHDX;
this.DiskType = VirtualDiskType.Vhdx;
break;
}
storageType.VendorId = NativeMethods.VIRTUAL_STORAGE_TYPE_VENDOR_MICROSOFT;
int res = NativeMethods.OpenVirtualDisk(ref storageType, this.FileName, (NativeMethods.VIRTUAL_DISK_ACCESS_MASK)fileAccess, NativeMethods.OPEN_VIRTUAL_DISK_FLAG.OPEN_VIRTUAL_DISK_FLAG_NONE, ref parameters, ref _handle);
if (res == NativeMethods.ERROR_SUCCESS) {
} else {
_handle.SetHandleAsInvalid();
if ((res == NativeMethods.ERROR_FILE_NOT_FOUND) || (res == NativeMethods.ERROR_PATH_NOT_FOUND)) {
throw new FileNotFoundException("File not found.");
} else if (res == NativeMethods.ERROR_ACCESS_DENIED) {
throw new IOException("Access is denied.");
} else if (res == NativeMethods.ERROR_FILE_CORRUPT) {
throw new InvalidDataException("File type not recognized.");
} else {
throw new Win32Exception(res);
}
}
}
public void CreateAsync(long size, VirtualDiskCreateOptions options, int blockSize, int sectorSize, VirtualDiskType type)
{
this.Create(type, size, options, blockSize, sectorSize, true);
}
