public NTStatus SetFileSystemInformation(FileSystemInformation information)
{
return(NTStatus.STATUS_NOT_SUPPORTED);
}
public NTStatus GetFileSystemInformation(out FileSystemInformation result, FileSystemInformationClass informationClass)
{
switch (informationClass)
{
case FileSystemInformationClass.FileFsVolumeInformation:
{
FileFsVolumeInformation information = new FileFsVolumeInformation();
information.SupportsObjects = false;
result = information;
return(NTStatus.STATUS_SUCCESS);
}
case FileSystemInformationClass.FileFsSizeInformation:
{
FileFsSizeInformation information = new FileFsSizeInformation();
information.TotalAllocationUnits = m_fileSystem.Size / ClusterSize;
information.AvailableAllocationUnits = m_fileSystem.FreeSpace / ClusterSize;
information.SectorsPerAllocationUnit = ClusterSize / BytesPerSector;
information.BytesPerSector = BytesPerSector;
result = information;
return(NTStatus.STATUS_SUCCESS);
}
case FileSystemInformationClass.FileFsDeviceInformation:
{
FileFsDeviceInformation information = new FileFsDeviceInformation();
information.DeviceType = DeviceType.Disk;
information.Characteristics = DeviceCharacteristics.IsMounted;
result = information;
return(NTStatus.STATUS_SUCCESS);
}
case FileSystemInformationClass.FileFsAttributeInformation:
{
FileFsAttributeInformation information = new FileFsAttributeInformation();
information.FileSystemAttributes = FileSystemAttributes.UnicodeOnDisk;
information.MaximumComponentNameLength = 255;
information.FileSystemName = m_fileSystem.Name;
result = information;
return(NTStatus.STATUS_SUCCESS);
}
case FileSystemInformationClass.FileFsControlInformation:
{
FileFsControlInformation information = new FileFsControlInformation();
information.FileSystemControlFlags = FileSystemControlFlags.ContentIndexingDisabled;
information.DefaultQuotaThreshold = UInt64.MaxValue;
information.DefaultQuotaLimit = UInt64.MaxValue;
result = information;
return(NTStatus.STATUS_SUCCESS);
}
case FileSystemInformationClass.FileFsFullSizeInformation:
{
FileFsFullSizeInformation information = new FileFsFullSizeInformation();
information.TotalAllocationUnits = m_fileSystem.Size / ClusterSize;
information.CallerAvailableAllocationUnits = m_fileSystem.FreeSpace / ClusterSize;
information.ActualAvailableAllocationUnits = m_fileSystem.FreeSpace / ClusterSize;
information.SectorsPerAllocationUnit = ClusterSize / BytesPerSector;
information.BytesPerSector = BytesPerSector;
result = information;
return(NTStatus.STATUS_SUCCESS);
}
case FileSystemInformationClass.FileFsObjectIdInformation:
{
result = null;
// STATUS_INVALID_PARAMETER is returned when the file system does not implement object IDs
// See: https://msdn.microsoft.com/en-us/library/cc232106.aspx
return(NTStatus.STATUS_INVALID_PARAMETER);
}
case FileSystemInformationClass.FileFsSectorSizeInformation:
{
FileFsSectorSizeInformation information = new FileFsSectorSizeInformation();
information.LogicalBytesPerSector = BytesPerSector;
information.PhysicalBytesPerSectorForAtomicity = BytesPerSector;
information.PhysicalBytesPerSectorForPerformance = BytesPerSector;
information.FileSystemEffectivePhysicalBytesPerSectorForAtomicity = BytesPerSector;
information.ByteOffsetForSectorAlignment = 0;
information.ByteOffsetForPartitionAlignment = 0;
result = information;
return(NTStatus.STATUS_SUCCESS);
}
default:
{
result = null;
return(NTStatus.STATUS_INVALID_INFO_CLASS);
}
}
}
public NTStatus GetFileSystemInformation(out FileSystemInformation result, FileSystemInformationClass informationClass)
{
result = null;
return(NTStatus.STATUS_NOT_SUPPORTED);
}
