static extern int CreateVirtualDisk(
[In] ref VirtualStorageType VirtualStorageType,
string Path,
VirtualDiskAccessMask VirtualDiskAccessMask,
[In] byte[] SecurityDescriptor,
CreateVirtualDiskFlag Flags,
uint ProviderSpecificFlags,
[In] ref CreateVirtualDiskParameters Parameters,
IntPtr Overlapped,
out IntPtr Handle
);
/// <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 Open(VirtualDiskAccessMask fileAccess)
{
this.Open(fileAccess, VirtualDiskType.AutoDetect);
}
public static extern Int32 OpenVirtualDisk(ref VirtualStorageType virtualStorageType, string path, VirtualDiskAccessMask virtualDiskAccessMask, OpenVirtualDiskFlag flags, ref OpenVirtualDiskParameters parameters, ref IntPtr handle);
static extern int CreateVirtualDisk(
[In] ref VirtualStorageType VirtualStorageType,
string Path,
VirtualDiskAccessMask VirtualDiskAccessMask,
[In] byte[] SecurityDescriptor,
CreateVirtualDiskFlag Flags,
uint ProviderSpecificFlags,
[In] ref CreateVirtualDiskParameters Parameters,
IntPtr Overlapped,
out IntPtr Handle
);
