public static QueryFSInformation FromFileSystemInformation(FileSystemInformation fsInfo)
{
if (fsInfo is FileFsVolumeInformation)
{
FileFsVolumeInformation volumeInfo = (FileFsVolumeInformation)fsInfo;
QueryFSVolumeInfo result = new QueryFSVolumeInfo();
result.VolumeCreationTime = volumeInfo.VolumeCreationTime;
result.SerialNumber = volumeInfo.VolumeSerialNumber;
result.VolumeLabel = volumeInfo.VolumeLabel;
return(result);
}
else if (fsInfo is FileFsSizeInformation)
{
FileFsSizeInformation fsSizeInfo = (FileFsSizeInformation)fsInfo;
QueryFSSizeInfo result = new QueryFSSizeInfo();
result.TotalAllocationUnits = fsSizeInfo.TotalAllocationUnits;
result.TotalFreeAllocationUnits = fsSizeInfo.AvailableAllocationUnits;
result.BytesPerSector = fsSizeInfo.BytesPerSector;
result.SectorsPerAllocationUnit = fsSizeInfo.SectorsPerAllocationUnit;
return(result);
}
else if (fsInfo is FileFsDeviceInformation)
{
FileFsDeviceInformation fsDeviceInfo = (FileFsDeviceInformation)fsInfo;
QueryFSDeviceInfo result = new QueryFSDeviceInfo();
result.DeviceType = fsDeviceInfo.DeviceType;
result.DeviceCharacteristics = fsDeviceInfo.Characteristics;
return(result);
}
else if (fsInfo is FileFsAttributeInformation)
{
FileFsAttributeInformation fsAttributeInfo = (FileFsAttributeInformation)fsInfo;
QueryFSAttibuteInfo result = new QueryFSAttibuteInfo();
result.FileSystemAttributes = fsAttributeInfo.FileSystemAttributes;
result.MaxFileNameLengthInBytes = fsAttributeInfo.MaximumComponentNameLength;
result.FileSystemName = fsAttributeInfo.FileSystemName;
return(result);
}
else
{
throw new NotImplementedException();
}
}
public static NTStatus GetFileSystemInformation(out QueryFSInformation result, INTFileStore fileStore, QueryFSInformationLevel informationLevel)
{
result = null;
FileSystemInformation fsInfo;
switch (informationLevel)
{
case QueryFSInformationLevel.SMB_QUERY_FS_VOLUME_INFO:
{
NTStatus status = fileStore.GetFileSystemInformation(out fsInfo, FileSystemInformationClass.FileFsVolumeInformation);
if (status != NTStatus.STATUS_SUCCESS)
{
return(status);
}
FileFsVolumeInformation volumeInfo = (FileFsVolumeInformation)fsInfo;
QueryFSVolumeInfo information = new QueryFSVolumeInfo();
information.VolumeCreationTime = volumeInfo.VolumeCreationTime;
information.SerialNumber = volumeInfo.VolumeSerialNumber;
information.VolumeLabel = volumeInfo.VolumeLabel;
result = information;
return(NTStatus.STATUS_SUCCESS);
}
case QueryFSInformationLevel.SMB_QUERY_FS_SIZE_INFO:
{
NTStatus status = fileStore.GetFileSystemInformation(out fsInfo, FileSystemInformationClass.FileFsSizeInformation);
if (status != NTStatus.STATUS_SUCCESS)
{
return(status);
}
FileFsSizeInformation fsSizeInfo = (FileFsSizeInformation)fsInfo;
QueryFSSizeInfo information = new QueryFSSizeInfo();
information.TotalAllocationUnits = fsSizeInfo.TotalAllocationUnits;
information.TotalFreeAllocationUnits = fsSizeInfo.AvailableAllocationUnits;
information.BytesPerSector = fsSizeInfo.BytesPerSector;
information.SectorsPerAllocationUnit = fsSizeInfo.SectorsPerAllocationUnit;
result = information;
return(NTStatus.STATUS_SUCCESS);
}
case QueryFSInformationLevel.SMB_QUERY_FS_DEVICE_INFO:
{
NTStatus status = fileStore.GetFileSystemInformation(out fsInfo, FileSystemInformationClass.FileFsDeviceInformation);
if (status != NTStatus.STATUS_SUCCESS)
{
return(status);
}
FileFsDeviceInformation fsDeviceInfo = (FileFsDeviceInformation)fsInfo;
QueryFSDeviceInfo information = new QueryFSDeviceInfo();
information.DeviceType = fsDeviceInfo.DeviceType;
information.DeviceCharacteristics = fsDeviceInfo.Characteristics;
result = information;
return(NTStatus.STATUS_SUCCESS);
}
case QueryFSInformationLevel.SMB_QUERY_FS_ATTRIBUTE_INFO:
{
NTStatus status = fileStore.GetFileSystemInformation(out fsInfo, FileSystemInformationClass.FileFsAttributeInformation);
if (status != NTStatus.STATUS_SUCCESS)
{
return(status);
}
FileFsAttributeInformation fsAttributeInfo = (FileFsAttributeInformation)fsInfo;
QueryFSAttibuteInfo information = new QueryFSAttibuteInfo();
information.FileSystemAttributes = fsAttributeInfo.FileSystemAttributes;
information.MaxFileNameLengthInBytes = fsAttributeInfo.MaximumComponentNameLength;
information.FileSystemName = fsAttributeInfo.FileSystemName;
result = information;
return(NTStatus.STATUS_SUCCESS);
}
default:
{
return(NTStatus.STATUS_OS2_INVALID_LEVEL);
}
}
}
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.CasePreservedNamed | 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);
}
}
}