Win32 Windows Volume Program and Code Example 25

 

 

 

 

 

Next, add a ntfs.h header file to the project.

 

Another Day, Another MFT Program Example: List, Recover and Delete the Deleted Files from Master File Table - adding a new ntfs.h header file

 

Then, add the source code.

 

// ntfs.h

// Just a portion of the NTFS types

// A more complete can be found in reactos.org

// source code repsitory or other Linux/Unix source code

// repo or at http://www.ntfs-3g.org/

typedef struct {

    ULONG Type;

    USHORT UsaOffset;

    USHORT UsaCount;

    USN Usn;

} NTFS_RECORD_HEADER, *PNTFS_RECORD_HEADER;

 

typedef struct {

    NTFS_RECORD_HEADER Ntfs;

    USHORT SequenceNumber;

    USHORT LinkCount;

    USHORT AttributesOffset;

      // 0x0001 = InUse, 0x0002 = Directory

    USHORT Flags;

    ULONG BytesInUse;

    ULONG BytesAllocated;

    ULONGLONG BaseFileRecord;

    USHORT NextAttributeNumber;

} FILE_RECORD_HEADER, *PFILE_RECORD_HEADER;

 

typedef enum {

    AttributeStandardInformation = 0x10,

    AttributeAttributeList = 0x20,

    AttributeFileName = 0x30,

    AttributeObjectId = 0x40,

    AttributeSecurityDescriptor = 0x50,

    AttributeVolumeName = 0x60,

    AttributeVolumeInformation = 0x70,

    AttributeData = 0x80,

    AttributeIndexRoot = 0x90,

    AttributeIndexAllocation = 0xA0,

    AttributeBitmap = 0xB0,

    AttributeReparsePoint = 0xC0,

    AttributeEAInformation = 0xD0,

    AttributeEA = 0xE0,

    AttributePropertySet = 0xF0,

    AttributeLoggedUtilityStream = 0x100

} ATTRIBUTE_TYPE, *PATTRIBUTE_TYPE;

 

typedef struct {

    ATTRIBUTE_TYPE AttributeType;

    ULONG Length;

    BOOLEAN Nonresident;

    UCHAR NameLength;

    USHORT NameOffset;

      // 0x0001 = Compressed

    USHORT Flags;

    USHORT AttributeNumber;

} ATTRIBUTE, *PATTRIBUTE;

 

typedef struct {

    ATTRIBUTE Attribute;

    ULONG ValueLength;

    USHORT ValueOffset;

      // 0x0001 = Indexed

    USHORT Flags;

} RESIDENT_ATTRIBUTE, *PRESIDENT_ATTRIBUTE;

 

typedef struct {

    ATTRIBUTE Attribute;

    ULONGLONG LowVcn;

    ULONGLONG HighVcn;

    USHORT RunArrayOffset;

    UCHAR CompressionUnit;

    UCHAR AlignmentOrReserved[5];

    ULONGLONG AllocatedSize;

    ULONGLONG DataSize;

    ULONGLONG InitializedSize;

      // Only when compressed

    ULONGLONG CompressedSize;

} NONRESIDENT_ATTRIBUTE, *PNONRESIDENT_ATTRIBUTE;

 

typedef struct {

    ULONGLONG CreationTime; 

    ULONGLONG ChangeTime;

    ULONGLONG LastWriteTime; 

    ULONGLONG LastAccessTime; 

    ULONG FileAttributes; 

    ULONG AlignmentOrReservedOrUnknown[3];

    ULONG QuotaId;                  // NTFS 3.0 only

    ULONG SecurityId;         // NTFS 3.0 only

    ULONGLONG QuotaCharge;    // NTFS 3.0 only

    USN Usn;                        // NTFS 3.0 only

} STANDARD_INFORMATION, *PSTANDARD_INFORMATION;

 

typedef struct {

    ATTRIBUTE_TYPE AttributeType;

    USHORT Length;

    UCHAR NameLength;

    UCHAR NameOffset;

    ULONGLONG LowVcn;

    ULONGLONG FileReferenceNumber;

    USHORT AttributeNumber;

    USHORT AlignmentOrReserved[3];

} ATTRIBUTE_LIST, *PATTRIBUTE_LIST;

 

typedef struct {

    ULONGLONG DirectoryFileReferenceNumber;

    ULONGLONG CreationTime;   // Saved when filename last changed

    ULONGLONG ChangeTime;     // ditto

    ULONGLONG LastWriteTime;  // ditto

    ULONGLONG LastAccessTime; // ditto

    ULONGLONG AllocatedSize;  // ditto

    ULONGLONG DataSize;       // ditto

    ULONG FileAttributes;     // ditto

    ULONG AlignmentOrReserved;

    UCHAR NameLength;

    UCHAR NameType;           // 0x01 = Long, 0x02 = Short

    WCHAR Name[1];

} FILENAME_ATTRIBUTE, *PFILENAME_ATTRIBUTE;

 

typedef struct {

    GUID ObjectId;

    union {

        struct {

            GUID BirthVolumeId;

            GUID BirthObjectId;

            GUID DomainId;

        } ;

        UCHAR ExtendedInfo[48];

    };

} OBJECTID_ATTRIBUTE, *POBJECTID_ATTRIBUTE;

 

typedef struct {

    ULONG Unknown[2];

    UCHAR MajorVersion;

    UCHAR MinorVersion;

    USHORT Flags;

} VOLUME_INFORMATION, *PVOLUME_INFORMATION;

 

typedef struct {

    ULONG EntriesOffset;

    ULONG IndexBlockLength;

    ULONG AllocatedSize;

    ULONG Flags;         // 0x00 = Small directory, 0x01 = Large directory

} DIRECTORY_INDEX, *PDIRECTORY_INDEX;

 

typedef struct {

    ULONGLONG FileReferenceNumber;

    USHORT Length;

    USHORT AttributeLength;

    ULONG Flags;           // 0x01 = Has trailing VCN, 0x02 = Last entry

    // FILENAME_ATTRIBUTE Name;

    // ULONGLONG Vcn;      // VCN in IndexAllocation of earlier entries

} DIRECTORY_ENTRY, *PDIRECTORY_ENTRY;

 

typedef struct {

    ATTRIBUTE_TYPE Type;

    ULONG CollationRule;

    ULONG BytesPerIndexBlock;

    ULONG ClustersPerIndexBlock;

    DIRECTORY_INDEX DirectoryIndex;

} INDEX_ROOT, *PINDEX_ROOT;

 

typedef struct {

    NTFS_RECORD_HEADER Ntfs;

    ULONGLONG IndexBlockVcn;

    DIRECTORY_INDEX DirectoryIndex;

} INDEX_BLOCK_HEADER, *PINDEX_BLOCK_HEADER;

 

typedef struct {

    ULONG ReparseTag;

    USHORT ReparseDataLength;

    USHORT Reserved;

    UCHAR ReparseData[1];

} REPARSE_POINT, *PREPARSE_POINT;

 

typedef struct {

    ULONG EaLength;

    ULONG EaQueryLength;

} EA_INFORMATION, *PEA_INFORMATION;

 

typedef struct {

    ULONG NextEntryOffset;

    UCHAR Flags;

    UCHAR EaNameLength;

    USHORT EaValueLength;

    CHAR EaName[1];

    // UCHAR EaData[];

} EA_ATTRIBUTE, *PEA_ATTRIBUTE;

 

typedef struct {

    WCHAR AttributeName[64];

    ULONG AttributeNumber;

    ULONG Unknown[2];

    ULONG Flags;

    ULONGLONG MinimumSize;

    ULONGLONG MaximumSize;

} ATTRIBUTE_DEFINITION, *PATTRIBUTE_DEFINITION;

 

#pragma pack(push, 1)

 

typedef struct {

    UCHAR Jump[3];

    UCHAR Format[8];

    USHORT BytesPerSector;

    UCHAR SectorsPerCluster;

    USHORT BootSectors;

    UCHAR Mbz1;

    USHORT Mbz2;

    USHORT Reserved1;

    UCHAR MediaType;

    USHORT Mbz3;

    USHORT SectorsPerTrack;

    USHORT NumberOfHeads;

    ULONG PartitionOffset;

    ULONG Reserved2[2];

    ULONGLONG TotalSectors;

    ULONGLONG MftStartLcn;

    ULONGLONG Mft2StartLcn;

    ULONG ClustersPerFileRecord;

    ULONG ClustersPerIndexBlock;

    ULONGLONG VolumeSerialNumber;

    UCHAR Code[0x1AE];

    USHORT BootSignature;

} BOOT_BLOCK, *PBOOT_BLOCK;

 

#pragma pack(pop)

 

Build and run the project. The following screenshot is an output sample.

 

Another Day, Another MFT Program Example: List, Recover and Delete the Deleted Files from Master File Table - sample output without any argument supplied

 

When pressing any key, the deleted files (index, file size and file name) are stored in the DeletedFile.txt.

 

Another Day, Another MFT Program Example: List, Recover and Delete the Deleted Files from Master File Table - reading the MFT and recovering the deleted files looks successful

 

 

 

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