BOOL OpenAndMergeVHD(PCWSTR pszVhdPath)
{
BOOL bRet = FALSE;
DWORD ret;
HANDLE hVhd;
MERGE_VIRTUAL_DISK_PARAMETERS mparms;
OPEN_VIRTUAL_DISK_PARAMETERS oparms;
MERGE_VIRTUAL_DISK_FLAG flags = MERGE_VIRTUAL_DISK_FLAG_NONE;
VIRTUAL_STORAGE_TYPE vst =
{
VIRTUAL_STORAGE_TYPE_DEVICE_VHD,
VIRTUAL_STORAGE_TYPE_VENDOR_MICROSOFT
};
wprintf(L"OpenAndMergeVHD %s\n", pszVhdPath);
oparms.Version = OPEN_VIRTUAL_DISK_VERSION_1;
oparms.Version1.RWDepth = 2;
ret = OpenVirtualDisk(&vst, pszVhdPath,
VIRTUAL_DISK_ACCESS_METAOPS | VIRTUAL_DISK_ACCESS_GET_INFO,
OPEN_VIRTUAL_DISK_FLAG_NONE, &oparms, &hVhd);
if (ERROR_SUCCESS == ret)
{
printf("success opening vdisk...\n");
mparms.Version = MERGE_VIRTUAL_DISK_VERSION_1;
mparms.Version1.MergeDepth = oparms.Version1.RWDepth - 1; //MERGE_VIRTUAL_DISK_DEFAULT_MERGE_DEPTH;
ret = MergeVirtualDisk(hVhd, flags, &mparms, NULL);
if (ERROR_SUCCESS == ret)
{
printf("success merging vdisk...\n");
bRet = TRUE;
}
else
{
printf("failed to expand vdisk... %d\n", ret);
PrintErrorMessage(GetLastError());
bRet = FALSE;
}
}
else
{
printf("failed to open vdisk...err %d\n", ret);
PrintErrorMessage(GetLastError());
bRet = FALSE;
}
if (INVALID_HANDLE_VALUE != hVhd)
{
CloseHandle(hVhd);
}
return bRet;
}
BOOL OpenAndGetPhysVHD(PCWSTR pszVhdPath, PWSTR pszPhysicalDiskPath)
{
BOOL bRet = FALSE;
HANDLE hVhd = INVALID_HANDLE_VALUE;
DWORD ret;
OPEN_VIRTUAL_DISK_PARAMETERS oparams;
ATTACH_VIRTUAL_DISK_PARAMETERS iparams;
VIRTUAL_STORAGE_TYPE vst =
{
VIRTUAL_STORAGE_TYPE_DEVICE_VHD,
VIRTUAL_STORAGE_TYPE_VENDOR_MICROSOFT
};
wprintf(L"OpenAndGetPhysVHD %s\n", pszVhdPath);
oparams.Version = OPEN_VIRTUAL_DISK_VERSION_1;
oparams.Version1.RWDepth = OPEN_VIRTUAL_DISK_RW_DEPTH_DEFAULT;
iparams.Version = ATTACH_VIRTUAL_DISK_VERSION_1;
ret = OpenVirtualDisk(&vst, pszVhdPath,
VIRTUAL_DISK_ACCESS_ATTACH_RW | VIRTUAL_DISK_ACCESS_GET_INFO | VIRTUAL_DISK_ACCESS_DETACH,
OPEN_VIRTUAL_DISK_FLAG_NONE, &oparams, &hVhd);
if (ERROR_SUCCESS == ret)
{
ULONG sizePhysicalDisk;
printf("success opening vdisk...\n");
memset(pszPhysicalDiskPath, 0, sizeof (wchar_t) * PHYS_PATH_LEN);
sizePhysicalDisk = (PHYS_PATH_LEN * sizeof(wchar_t)) * 256;
ret = GetVirtualDiskPhysicalPath(hVhd, &sizePhysicalDisk, pszPhysicalDiskPath);
if (ERROR_SUCCESS == ret)
{
wprintf(L"success getting physical path %s vhdname\n", pszPhysicalDiskPath);
bRet = TRUE;
}
else
{
printf("failed to get vhd physical info %d\n", ret);
PrintErrorMessage(GetLastError());
}
}
else
{
printf("failed to open vdisk...err 0x%x\n", ret);
PrintErrorMessage(GetLastError());
}
if (INVALID_HANDLE_VALUE != hVhd)
{
CloseHandle(hVhd);
}
return bRet;
}
BOOL OpenAndAttachVHD(PCWSTR pszVhdPath)
{
BOOL bRet = FALSE;
HANDLE hVhd = INVALID_HANDLE_VALUE;
DWORD ret;
OPEN_VIRTUAL_DISK_PARAMETERS oparams;
ATTACH_VIRTUAL_DISK_PARAMETERS iparams;
VIRTUAL_STORAGE_TYPE vst =
{
VIRTUAL_STORAGE_TYPE_DEVICE_VHD,
VIRTUAL_STORAGE_TYPE_VENDOR_MICROSOFT
};
wprintf(L"OpenAndAttachVHD %s\n", pszVhdPath);
oparams.Version = OPEN_VIRTUAL_DISK_VERSION_1;
oparams.Version1.RWDepth = OPEN_VIRTUAL_DISK_RW_DEPTH_DEFAULT;
iparams.Version = ATTACH_VIRTUAL_DISK_VERSION_1;
ret = OpenVirtualDisk(&vst, pszVhdPath,
VIRTUAL_DISK_ACCESS_ATTACH_RW | VIRTUAL_DISK_ACCESS_GET_INFO | VIRTUAL_DISK_ACCESS_DETACH,
OPEN_VIRTUAL_DISK_FLAG_NONE, &oparams, &hVhd);
if (ERROR_SUCCESS == ret)
{
printf("success opening vdisk...\n");
ret = AttachVirtualDisk(hVhd, NULL,
ATTACH_VIRTUAL_DISK_FLAG_PERMANENT_LIFETIME, 0, &iparams, NULL);
if (ERROR_SUCCESS == ret)
{
printf("success attaching vdisk...\n");
}
else
{
printf("failed to attach vdisk...err 0x%x\n", ret);
PrintErrorMessage(GetLastError());
bRet = FALSE;
}
}
else
{
printf("failed to open vdisk...err 0x%x\n", ret);
PrintErrorMessage(GetLastError());
bRet = FALSE;
}
if (INVALID_HANDLE_VALUE != hVhd)
{
CloseHandle(hVhd);
}
return bRet;
}
BOOL OpenAndDetachVHD(PCWSTR pszVhdPath)
{
BOOL bRet = FALSE;
DWORD ret;
DETACH_VIRTUAL_DISK_FLAG Flags;
HANDLE hVhd = INVALID_HANDLE_VALUE;
OPEN_VIRTUAL_DISK_PARAMETERS oparams;
VIRTUAL_STORAGE_TYPE vst =
{
VIRTUAL_STORAGE_TYPE_DEVICE_VHD,
VIRTUAL_STORAGE_TYPE_VENDOR_MICROSOFT
};
wprintf(L"OpenAndDetachVHD %s\n", pszVhdPath);
oparams.Version = OPEN_VIRTUAL_DISK_VERSION_1;
oparams.Version1.RWDepth = OPEN_VIRTUAL_DISK_RW_DEPTH_DEFAULT;
ret = OpenVirtualDisk(&vst, pszVhdPath,
VIRTUAL_DISK_ACCESS_DETACH,
OPEN_VIRTUAL_DISK_FLAG_NONE, NULL /*&oparams*/, &hVhd);
if (ERROR_SUCCESS == ret)
{
printf("success opening vdisk...\n");
Flags = DETACH_VIRTUAL_DISK_FLAG_NONE;
ret = DetachVirtualDisk(hVhd, Flags, 0);
if (ERROR_SUCCESS == ret)
{
printf("success detaching vdisk...\n");
}
else
{
printf("failed to detach vdisk... %d\n", ret);
PrintErrorMessage(GetLastError());
bRet = FALSE;
}
}
else
{
printf("failed to open vdisk...err %d\n", ret);
PrintErrorMessage(GetLastError());
bRet = FALSE;
}
if (INVALID_HANDLE_VALUE != hVhd)
{
CloseHandle(hVhd);
}
return bRet;
}
int OpenAndSetVHDInfo(PCWSTR pszVhdPath, PCWSTR pszGuid, GUID *Guid)
{
BOOL bRet = FALSE;
DWORD ret;
HANDLE hVhd;
ULONG InfoSize;
SET_VIRTUAL_DISK_INFO SetInfo;
VIRTUAL_STORAGE_TYPE vst =
{
VIRTUAL_STORAGE_TYPE_DEVICE_VHD,
VIRTUAL_STORAGE_TYPE_VENDOR_MICROSOFT
};
wprintf(L"OpenAndSetVHDInfo %s GUID %s\n", pszVhdPath, pszGuid);
ret = OpenVirtualDisk(&vst, pszVhdPath,
VIRTUAL_DISK_ACCESS_ALL, OPEN_VIRTUAL_DISK_FLAG_NONE,
NULL, &hVhd);
if (ERROR_SUCCESS == ret)
{
printf("success opening vdisk...\n");
SetInfo.Version = SET_VIRTUAL_DISK_INFO_IDENTIFIER;
InfoSize = sizeof(SetInfo);
SetInfo.UniqueIdentifier = zGuid; //*Guid;
ret = SetVirtualDiskInformation(hVhd, &SetInfo);
if (ret == ERROR_SUCCESS)
{
printf("success setting vhd info\n");
}
else
{
printf("failed to set vhd info %d\n", ret);
PrintErrorMessage(GetLastError());
}
}
else
{
printf("failed to open vdisk...err %d\n", ret);
PrintErrorMessage(GetLastError());
}
if (INVALID_HANDLE_VALUE != hVhd)
{
CloseHandle(hVhd);
}
return bRet;
}
// Expanding a virtual disk requires that the virtual disk be detached during
// the operation.
BOOL OpenAndExpandVHD(PCWSTR pszVhdPath, ULONG newSizeMB)
{
BOOL bRet = FALSE;
DWORD ret;
HANDLE hVhd = INVALID_HANDLE_VALUE;
EXPAND_VIRTUAL_DISK_PARAMETERS xparams;
VIRTUAL_STORAGE_TYPE vst =
{
VIRTUAL_STORAGE_TYPE_DEVICE_VHD,
VIRTUAL_STORAGE_TYPE_VENDOR_MICROSOFT
};
wprintf(L"OpenAndExpandVHD %s, new size (MB) %d\n", pszVhdPath, newSizeMB);
ret = OpenVirtualDisk(&vst, pszVhdPath,
VIRTUAL_DISK_ACCESS_METAOPS,
OPEN_VIRTUAL_DISK_FLAG_NONE, NULL, &hVhd);
if (ERROR_SUCCESS == ret)
{
printf("success opening vdisk...\n");
xparams.Version = EXPAND_VIRTUAL_DISK_VERSION_1;
xparams.Version1.NewSize = newSizeMB * 1024 * 1024;
ret = ExpandVirtualDisk(hVhd, EXPAND_VIRTUAL_DISK_FLAG_NONE, &xparams, 0);
if (ERROR_SUCCESS == ret)
{
printf("success expanding vdisk...\n");
}
else
{
printf("failed to expand vdisk... %d\n", ret);
PrintErrorMessage(GetLastError());
bRet = FALSE;
}
}
else
{
printf("failed to open vdisk...err %d\n", ret);
PrintErrorMessage(GetLastError());
bRet = FALSE;
}
if (INVALID_HANDLE_VALUE != hVhd)
{
CloseHandle(hVhd);
}
return bRet;
}
DWORD
SampleResizeVirtualDisk(
_In_ LPCWSTR VirtualDiskPath,
_In_ ULONGLONG FileSize)
{
OPEN_VIRTUAL_DISK_PARAMETERS openParameters;
RESIZE_VIRTUAL_DISK_PARAMETERS resizeParameters;
VIRTUAL_STORAGE_TYPE storageType;
HANDLE vhdHandle;
DWORD opStatus;
vhdHandle = INVALID_HANDLE_VALUE;
//
// Specify UNKNOWN for both device and vendor so the system will use the
// file extension to determine the correct VHD format.
//
storageType.DeviceId = VIRTUAL_STORAGE_TYPE_DEVICE_UNKNOWN;
storageType.VendorId = VIRTUAL_STORAGE_TYPE_VENDOR_UNKNOWN;
//
// Open the VHD/VHDX.
//
// Only V2 handles can be used to resize a VHD/VHDX.
//
// VIRTUAL_DISK_ACCESS_NONE is the only acceptable access mask for V2 handle opens.
// OPEN_VIRTUAL_DISK_FLAG_NONE bypasses any special handling of the open.
//
memset(&openParameters, 0, sizeof(openParameters));
openParameters.Version = OPEN_VIRTUAL_DISK_VERSION_2;
opStatus = OpenVirtualDisk(
&storageType,
VirtualDiskPath,
VIRTUAL_DISK_ACCESS_NONE,
OPEN_VIRTUAL_DISK_FLAG_NONE,
&openParameters,
&vhdHandle);
if (opStatus != ERROR_SUCCESS)
{
goto Cleanup;
}
//
// Perform the resize (shrink or expand).
//
// RESIZE_VIRTUAL_DISK_VERSION_1 is the only version of the parameters currently supported.
// RESIZE_VIRTUAL_DISK_FLAG_NONE prevents unsafe shrink where the new virtual disk size cannot
// be less than the "SmallestSafeVirtualSize" reported through the GetVirtualDiskInformation API
// with a "VirtualDiskInfo" of GET_VIRTUAL_DISK_INFO_SMALLEST_SAFE_VIRTUAL_SIZE.
//
memset(&resizeParameters, 0, sizeof(resizeParameters));
resizeParameters.Version = RESIZE_VIRTUAL_DISK_VERSION_1;
resizeParameters.Version1.NewSize = FileSize;
opStatus = ResizeVirtualDisk(
vhdHandle,
RESIZE_VIRTUAL_DISK_FLAG_NONE,
&resizeParameters,
NULL);
if (opStatus != ERROR_SUCCESS)
{
goto Cleanup;
}
Cleanup:
if (opStatus == ERROR_SUCCESS)
{
wprintf(L"success\n");
}
else
{
wprintf(L"error = %u\n", opStatus);
}
if (vhdHandle != INVALID_HANDLE_VALUE)
{
CloseHandle(vhdHandle);
}
return opStatus;
}
int OpenAndGetVHDInfo(PCWSTR pszVhdPath, PCWSTR pszGuid)
{
BOOL bRet = FALSE;
DWORD ret;
HANDLE hVhd;
GET_VIRTUAL_DISK_INFO Info;
ULONG InfoSize;
ULONG SizeUsed;
VIRTUAL_STORAGE_TYPE vst =
{
VIRTUAL_STORAGE_TYPE_DEVICE_VHD,
VIRTUAL_STORAGE_TYPE_VENDOR_MICROSOFT
};
wprintf(L"OpenAndGetVHDInfo %s\n", pszVhdPath);
ret = OpenVirtualDisk(&vst, pszVhdPath,
VIRTUAL_DISK_ACCESS_ALL, OPEN_VIRTUAL_DISK_FLAG_NONE,
NULL, &hVhd);
if (ERROR_SUCCESS == ret)
{
printf("success opening vdisk...\n");
InfoSize = (ULONG)sizeof(GET_VIRTUAL_DISK_INFO);
Info.Version = GET_VIRTUAL_DISK_INFO_SIZE;
ret = GetVirtualDiskInformation(hVhd,
&InfoSize,
&Info,
&SizeUsed);
if (ret == ERROR_SUCCESS)
{
printf("success getting virtual disk size info\n");
printf("Info.Size.VirtualSize (bytes) = %I64d (dec)\n", Info.Size.VirtualSize);
printf("Info.Size.PhysicalSize (bytes) = %I64d (dec)\n", Info.Size.PhysicalSize);
printf("Info.Size.BlockSize (bytes) = %d (dec)\n", Info.Size.BlockSize);
printf("Info.Size.SectorSize (bytes) = %d (dec)\n", Info.Size.SectorSize);
bRet = TRUE;
}
else
{
printf("failed to get virtual disk size info %d\n", ret);
PrintErrorMessage(GetLastError());
}
InfoSize = (ULONG)sizeof(GET_VIRTUAL_DISK_INFO);
Info.Version = GET_VIRTUAL_DISK_INFO_IDENTIFIER;
ret = GetVirtualDiskInformation(hVhd,
&InfoSize,
&Info,
&SizeUsed);
if (ret == ERROR_SUCCESS)
{
StringFromCLSID(Info.Identifier, (LPOLESTR *) &pszGuid);
printf("success getting virtual disk ID info\n");
wprintf(L"Info.Identifier (GUID) = %s\n", pszGuid);
bRet = TRUE;
}
else
{
printf("failed to get virtual disk ID info %d\n", ret);
PrintErrorMessage(GetLastError());
}
}
else
{
printf("failed to open vdisk...err %d\n", ret);
PrintErrorMessage(GetLastError());
}
if (INVALID_HANDLE_VALUE != hVhd)
{
CloseHandle(hVhd);
}
return bRet;
}
BOOL OpenAndCompactVHD(PCWSTR pszVhdPath)
{
BOOL bRet = FALSE;
DWORD ret;
HANDLE hVhd = INVALID_HANDLE_VALUE;
OPEN_VIRTUAL_DISK_PARAMETERS oparams;
COMPACT_VIRTUAL_DISK_PARAMETERS parameters;
COMPACT_VIRTUAL_DISK_FLAG flags = COMPACT_VIRTUAL_DISK_FLAG_NONE;
VIRTUAL_STORAGE_TYPE vst =
{
VIRTUAL_STORAGE_TYPE_DEVICE_VHD,
VIRTUAL_STORAGE_TYPE_VENDOR_MICROSOFT
};
wprintf(L"OpenAndCompactVHD %s\n", pszVhdPath);
oparams.Version = OPEN_VIRTUAL_DISK_VERSION_1;
oparams.Version1.RWDepth = OPEN_VIRTUAL_DISK_RW_DEPTH_DEFAULT;
ret = OpenVirtualDisk(&vst, pszVhdPath,
VIRTUAL_DISK_ACCESS_METAOPS,
OPEN_VIRTUAL_DISK_FLAG_NONE, &oparams, &hVhd);
if (ERROR_SUCCESS == ret)
{
printf("success opening vdisk...\n");
parameters.Version = COMPACT_VIRTUAL_DISK_VERSION_1;
parameters.Version1.Reserved = 0;
ret = CompactVirtualDisk(hVhd,
COMPACT_VIRTUAL_DISK_FLAG_NONE,
¶meters,
0);
if (ERROR_SUCCESS == ret)
{
printf("success expanding vdisk...\n");
}
else
{
printf("failed to expand vdisk... %d\n", ret);
PrintErrorMessage(GetLastError());
bRet = FALSE;
}
}
else
{
printf("failed to open vdisk...err %d\n", ret);
PrintErrorMessage(GetLastError());
bRet = FALSE;
}
if (INVALID_HANDLE_VALUE != hVhd)
{
CloseHandle(hVhd);
}
return bRet;
}
DWORD
SampleDeleteUserMetaData(
_In_ LPCWSTR VHDPath)
{
OPEN_VIRTUAL_DISK_PARAMETERS openParameters;
VIRTUAL_STORAGE_TYPE storageType;
HANDLE vhdHandle;
GUID uniqueId;
DWORD status;
vhdHandle = NULL;
status = ERROR_SUCCESS;
if (VHDPath == NULL)
{
status = ERROR_INVALID_PARAMETER;
goto Cleanup;
}
//
// Specify UNKNOWN for both device and vendor so the system will use the
// file extension to determine the correct VHD format.
//
storageType.DeviceId = VIRTUAL_STORAGE_TYPE_DEVICE_UNKNOWN;
storageType.VendorId = VIRTUAL_STORAGE_TYPE_VENDOR_UNKNOWN;
//
// Only V2 handles can be used to query/set/delete user metadata.
//
memset(&openParameters, 0, sizeof(openParameters));
openParameters.Version = OPEN_VIRTUAL_DISK_VERSION_2;
//
// Open the VHD/VHDX
//
// VIRTUAL_DISK_ACCESS_NONE is the only acceptable access mask for V2 handle opens.
// OPEN_VIRTUAL_DISK_FLAG_NO_PARENTS indicates the parent chain should not be opened.
//
status = OpenVirtualDisk(
&storageType,
VHDPath,
VIRTUAL_DISK_ACCESS_NONE,
OPEN_VIRTUAL_DISK_FLAG_NO_PARENTS,
&openParameters,
&vhdHandle);
if (status != ERROR_SUCCESS)
{
goto Cleanup;
}
//
// Use the same GUID specified in SampleSetUserMetaData. This GUID is arbitray and any
// GUID can be utilized.
//
uniqueId.Data1 = 0x34a631f3;
uniqueId.Data2 = 0xa39d;
uniqueId.Data3 = 0x4e45;
uniqueId.Data4[0] = 0xbb;
uniqueId.Data4[1] = 0x2e;
uniqueId.Data4[2] = 0x98;
uniqueId.Data4[3] = 0xcf;
uniqueId.Data4[4] = 0x2d;
uniqueId.Data4[5] = 0xfe;
uniqueId.Data4[6] = 0x4f;
uniqueId.Data4[7] = 0x3d;
status = DeleteVirtualDiskMetadata(vhdHandle, &uniqueId);
Cleanup:
if (status == ERROR_SUCCESS)
{
wprintf(L"success\n");
}
else
{
wprintf(L"error = %u\n", status);
}
if (vhdHandle != INVALID_HANDLE_VALUE)
{
CloseHandle(vhdHandle);
}
return status;
}
