FS_INFORMATION_CLASS - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
#ifndef _NTIOAPI_H

typedef enum _FSINFOCLASS
{
    FileFsVolumeInformation = 1,            // q: FILE_FS_VOLUME_INFORMATION
    FileFsLabelInformation,                 // s: FILE_FS_LABEL_INFORMATION // SeManageVolumePrivilege
    FileFsSizeInformation,                  // q: FILE_FS_SIZE_INFORMATION
    FileFsDeviceInformation,                // q: FILE_FS_DEVICE_INFORMATION
    FileFsAttributeInformation,             // q: FILE_FS_ATTRIBUTE_INFORMATION
    FileFsControlInformation,               // qs: FILE_FS_CONTROL_INFORMATION // SeManageVolumePrivilege
    FileFsFullSizeInformation,              // q: FILE_FS_FULL_SIZE_INFORMATION
    FileFsObjectIdInformation,              // qs: FILE_FS_OBJECTID_INFORMATION // SeRestorePrivilege
    FileFsDriverPathInformation,            // q: FILE_FS_DRIVER_PATH_INFORMATION
    FileFsVolumeFlagsInformation,           // qs: FILE_FS_VOLUME_FLAGS_INFORMATION // SeManageVolumePrivilege // 10
    FileFsSectorSizeInformation,            // q: FILE_FS_SECTOR_SIZE_INFORMATION // since WIN8
    FileFsDataCopyInformation,              // q: FILE_FS_DATA_COPY_INFORMATION
    FileFsMetadataSizeInformation,          // q: FILE_FS_METADATA_SIZE_INFORMATION // since THRESHOLD
    FileFsFullSizeInformationEx,            // q: FILE_FS_FULL_SIZE_INFORMATION_EX // since REDSTONE5
    FileFsGuidInformation,                  // q: FILE_FS_GUID_INFORMATION // since 23H2
    FileFsMaximumInformation
} FSINFOCLASS, *PFSINFOCLASS;

#endif

View code on GitHub
// wdm.h

typedef enum _FSINFOCLASS {
  FileFsVolumeInformation,
  FileFsLabelInformation,
  FileFsSizeInformation,
  FileFsDeviceInformation,
  FileFsAttributeInformation,
  FileFsControlInformation,
  FileFsFullSizeInformation,
  FileFsObjectIdInformation,
  FileFsDriverPathInformation,
  FileFsVolumeFlagsInformation,
  FileFsSectorSizeInformation,
  FileFsDataCopyInformation,
  FileFsMetadataSizeInformation,
  FileFsFullSizeInformationEx,
  FileFsGuidInformation,
  FileFsMaximumInformation
} FS_INFORMATION_CLASS, *PFS_INFORMATION_CLASS;
View the official Windows Driver Kit DDI reference

NtDoc

No description available.

Edit description on GitHub

Windows Driver Kit DDI reference (ne-wdm-_fsinfoclass)

_FSINFOCLASS enumeration

Description

The FS_INFORMATION_CLASS enumeration contains the information class constants that specify what type of information structure is present for a set or a query operation.

Constants

FileFsVolumeInformation

Return a FILE_FS_VOLUME_INFORMATION structure that contains information about the volume such as the volume label, serial number, and creation time.

FileFsLabelInformation

Use a FILE_FS_LABEL_INFORMATION structure to set information a volume label.

FileFsSizeInformation

Return a FILE_FS_SIZE_INFORMATION structure containing information about the amount of space on the volume that is available to the user that is associated with the calling thread.

FileFsDeviceInformation

Return a FILE_FS_DEVICE_INFORMATION structure that contains device information for the volume.

FileFsAttributeInformation

Return a FILE_FS_ATTRIBUTE_INFORMATION structure that contains attribute information about the file system responsible for the volume.

FileFsControlInformation

Return a FILE_FS_CONTROL_INFORMATION structure that contains file system control information about the volume.

FileFsFullSizeInformation

Return a FILE_FS_FULL_SIZE_INFORMATION structure that contains information about the total amount of space available on the volume.

FileFsObjectIdInformation

Return a FILE_FS_OBJECTID_INFORMATION structure that contains file-system-specific object ID information for the volume. Note that this is not the same as the (GUID-based) unique volume name that is assigned by the operating system.

FileFsDriverPathInformation

Return a FILE_FS_DRIVER_PATH_INFORMATION structure that contains information about whether a specified driver is in the I/O path for the volume. The originator of the IRP_MJ_QUERY_VOLUME_INFORMATION request must store the name of the driver into the FILE_FS_DRIVER_PATH_INFORMATION structure before sending the IRP to the file system volume device stack.

FileFsVolumeFlagsInformation

Use a FILE_FS_VOLUME_FLAGS_INFORMATION structure to set the flags for a volume.

FileFsSectorSizeInformation

Return a FILE_FS_SECTOR_SIZE_INFORMATION structure that contains information about the physical and logical sector sizes of a volume.

FileFsDataCopyInformation

Returns a FILE_FS_DATA_COPY_INFORMATION structure that contains the number of data copies.

FileFsMetadataSizeInformation

Returns a FILE_FS_METADATA_SIZE_INFORMATION structure that contains the metadata size information.

FileFsFullSizeInformationEx

Returns a FILE_FS_FULL_SIZE_INFORMATION_EX structure that contains information about the total amount of space available on the volume.

FileFsGuidInformation

Returns a FILE_FS_GUID_INFORMATION structure that contains the GUID information.

FileFsMaximumInformation

End of this enumeration.

View the official Windows Driver Kit DDI reference

Edit description on GitHub

NTinternals.net (undocumented.ntinternals.net)

This enumeration is documented in Windows Driver Kit.

FS_INFORMATION_CLASS enumeration type is used in a call to NtQueryVolumeInformationFile and NtSetVolumeInformationFile.

FileFsVolumeInformation

FileFsLabelInformation

FileFsSizeInformation

FileFsDeviceInformation

FileFsAttributeInformation

FileFsControlInformation

FileFsFullSizeInformation

FileFsObjectIdInformation

Documented by

See also

Edit description on GitHub