private void QueryPartition(XmlElement pathNode, IOSVolumeDeviceInfo vinfo, SafeHandle hDevice)
{
PartitionInformation partInfo = QueryApi(pathNode, "PartitionInformation", vinfo, () => {
return(vinfo.GetPartitionInfo(hDevice));
}, out XmlElement partNode);
if (partInfo == null)
{
return;
}
WriteApiResult(partNode, "Style", (int)partInfo.Style);
WriteApiResult(partNode, "Number", partInfo.Number);
WriteApiResult(partNode, "Offset", partInfo.Offset);
WriteApiResult(partNode, "Length", partInfo.Length);
switch (partInfo.Style)
{
case PartitionStyle.MasterBootRecord:
MbrPartition mbrInfo = (MbrPartition)partInfo;
WriteApiResult(partNode, "MbrType", mbrInfo.Type);
WriteApiResult(partNode, "MbrBootable", mbrInfo.Bootable);
WriteApiResult(partNode, "MbrOffset", mbrInfo.HiddenSectors);
break;
case PartitionStyle.GuidPartitionTable:
GptPartition gptInfo = (GptPartition)partInfo;
WriteApiResult(partNode, "GptAttributes", (long)gptInfo.Attributes);
WriteApiResult(partNode, "GptId", gptInfo.Id.ToString());
WriteApiResult(partNode, "GptType", gptInfo.Type.ToString());
WriteApiResult(partNode, "GptName", gptInfo.Name);
break;
}
}
private void GetDeviceInformation()
{
if (m_VolumeData.VolumeDevicePath == null && IsDriveLetter(m_VolumeData.VolumeDrive))
{
string drive = string.Format("{0}{1}",
m_VolumeData.VolumeDrive.TrimEnd(new[] { System.IO.Path.DirectorySeparatorChar, System.IO.Path.AltDirectorySeparatorChar }),
System.IO.Path.DirectorySeparatorChar);
m_VolumeData.DriveType = m_OS.GetDriveType(drive);
return;
}
m_VolumeData.DriveType = m_OS.GetDriveType(m_VolumeData.VolumeDevicePathSlash);
m_VolumeData.VolumeQuery = m_OS.GetVolumeInformation(m_VolumeData.VolumeDevicePathSlash);
m_VolumeData.FreeSpace = m_OS.GetDiskFreeSpace(m_VolumeData.VolumeDevicePathSlash);
// For floppy drives, m_OS.GetMediaPresent is false, even if media is present. Looking into the sources from
// .NET, the DriveInfo class checks if the file attribute directory bit is set instead. So use that first,
// and only if it fails, then use the IOCTL later.
System.IO.FileAttributes attr = m_OS.GetFileAttributes(m_VolumeData.VolumeDevicePathSlash);
if ((int)attr != -1)
{
m_VolumeData.MediaPresent = (attr & System.IO.FileAttributes.Directory) != 0;
}
SafeHandle hDevice = m_OS.CreateFileFromDevice(m_VolumeData.VolumeDevicePath);
try {
m_OS.RefreshVolume(hDevice);
m_VolumeData.Extents = m_OS.GetDiskExtents(hDevice);
m_VolumeData.DeviceQuery = m_OS.GetStorageDeviceProperty(hDevice);
if ((int)attr == -1)
{
m_VolumeData.MediaPresent = m_OS.GetMediaPresent(hDevice);
}
m_VolumeData.HasSeekPenalty = m_OS.IncursSeekPenalty(hDevice);
m_VolumeData.DeviceNumber = m_OS.GetDeviceNumberEx(hDevice);
if (m_VolumeData.DeviceNumber == null)
{
m_VolumeData.DeviceNumber = m_OS.GetDeviceNumber(hDevice);
}
m_VolumeData.PartitionInfo = m_OS.GetPartitionInfo(hDevice);
m_VolumeData.DiskGeometry = m_OS.GetDiskGeometry(hDevice);
m_VolumeData.Alignment = m_OS.GetAlignment(hDevice);
m_VolumeData.DiskReadOnly = m_OS.IsReadOnly(hDevice);
} finally {
hDevice.Close();
}
}
