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);
}
}
}
internal static QueryFSInformation GetFSInformation(QueryFSInformationLevel informationLevel, IFileSystem fileSystem)
{
switch (informationLevel)
{
case QueryFSInformationLevel.SMB_INFO_ALLOCATION:
{
QueryFSInfoAllocation result = new QueryFSInfoAllocation();
result.FileSystemID = 0;
result.SectorUnit = ClusterSize / BytesPerSector;
result.UnitsTotal = (uint)Math.Min(fileSystem.Size / ClusterSize, UInt32.MaxValue);
result.UnitsAvailable = (uint)Math.Min(fileSystem.FreeSpace / ClusterSize, UInt32.MaxValue);
result.Sector = BytesPerSector;
return(result);
}
case QueryFSInformationLevel.SMB_INFO_VOLUME:
{
QueryFSInfoVolume result = new QueryFSInfoVolume();
result.VolumeLabel = String.Empty;
result.VolumeSerialNumber = 0;
return(result);
}
case QueryFSInformationLevel.SMB_QUERY_FS_VOLUME_INFO:
{
QueryFSVolumeInfo result = new QueryFSVolumeInfo();
result.VolumeCreationTime = DateTime.Now;
return(result);
}
case QueryFSInformationLevel.SMB_QUERY_FS_SIZE_INFO:
{
QueryFSSizeInfo result = new QueryFSSizeInfo();
result.TotalAllocationUnits = (ulong)(fileSystem.Size / ClusterSize);
result.TotalFreeAllocationUnits = (ulong)(fileSystem.FreeSpace / ClusterSize);
result.BytesPerSector = BytesPerSector;
result.SectorsPerAllocationUnit = ClusterSize / BytesPerSector;
return(result);
}
case QueryFSInformationLevel.SMB_QUERY_FS_DEVICE_INFO:
{
QueryFSDeviceInfo result = new QueryFSDeviceInfo();
result.DeviceCharacteristics = DeviceCharacteristics.FILE_DEVICE_IS_MOUNTED;
result.DeviceType = DeviceType.FILE_DEVICE_DISK;
return(result);
}
case QueryFSInformationLevel.SMB_QUERY_FS_ATTRIBUTE_INFO:
{
QueryFSAttibuteInfo result = new QueryFSAttibuteInfo();
result.FileSystemAttributes = FileSystemAttributes.FILE_UNICODE_ON_DISK;
result.MaxFileNameLengthInBytes = 255;
result.FileSystemName = fileSystem.Name;
return(result);
}
default:
{
throw new UnsupportedInformationLevelException();
}
}
}
