*
* common.h - Common Types and Definitions
*/
-#ifndef _COMMON_H_
-#define _COMMON_H_
+#ifndef _NTFS__COMMON_H_
+#define _NTFS__COMMON_H_
#include <acess.h>
#include <vfs.h>
+#include "ntfs.h"
-typedef Uint16 WCHAR;
+typedef struct sNTFS_File tNTFS_File;
+typedef struct sNTFS_Directory tNTFS_Directory;
+typedef struct sNTFS_Disk tNTFS_Disk;
+typedef struct sNTFS_Attrib tNTFS_Attrib;
+typedef struct sNTFS_AttribDataRun tNTFS_AttribDataRun;
// === STRUCTURES ===
+
+struct sNTFS_File
+{
+ tVFS_Node Node;
+ tNTFS_Attrib *Data;
+};
+
+struct sNTFS_Directory
+{
+ tVFS_Node Node;
+ tNTFS_Attrib *I30Root;
+ tNTFS_Attrib *I30Allocation;
+};
+
/**
* In-memory representation of an NTFS Disk
*/
-typedef struct sNTFS_Disk
+struct sNTFS_Disk
{
int FD;
int CacheHandle;
int ClusterSize;
+
Uint64 MFTBase;
Uint32 MFTRecSize;
- tVFS_Node RootNode;
-} tNTFS_Disk;
-
-typedef struct sNTFS_BootSector
-{
- // 0
- Uint8 Jump[3];
- Uint8 SystemID[8]; // = "NTFS "
- Uint16 BytesPerSector;
- Uint8 SectorsPerCluster;
-
- // 0xE
- Uint8 Unused[7];
- Uint8 MediaDescriptor;
- Uint16 Unused2;
- Uint16 SectorsPerTrack;
- Uint16 Heads;
-
- // 0x1C
- Uint64 Unused3;
- Uint32 Unkown; // Usually 0x00800080 (according to Linux docs)
-
- // 0x28
- Uint64 TotalSectorCount; // Size of volume in sectors
- Uint64 MFTStart; // Logical Cluster Number of Cluster 0 of MFT
- Uint64 MFTMirrorStart; // Logical Cluster Number of Cluster 0 of MFT Backup
-
- // 0x40
- // If either of these are -ve, the size can be obtained via
- // SizeInBytes = 2^(-1 * Value)
- Sint8 ClustersPerMFTRecord;
- Uint8 Unused4[3];
- Sint8 ClustersPerIndexRecord;
- Uint8 Unused5[3];
+ tNTFS_Attrib *MFTDataAttr;
+ tNTFS_Attrib *MFTBitmapAttr;
- Uint64 SerialNumber;
-
- Uint8 Padding[512-0x50];
-
-} PACKED tNTFS_BootSector;
+ tNTFS_Directory RootDir;
+};
-/**
- * FILE header, an entry in the MFT
- */
-typedef struct sNTFS_FILE_Header
+struct sNTFS_AttribDataRun
{
- Uint32 Magic; // 'FILE'
- Uint16 UpdateSequenceOfs;
- Uint16 UpdateSequenceSize; // Size in words of the UpdateSequenceArray
-
- Uint64 LSN; // $LogFile Sequence Number
-
- Uint16 SequenceNumber;
- Uint16 HardLinkCount;
- Uint16 FirstAttribOfs; // Size of header?
- Uint16 Flags; // 0: In Use, 1: Directory
-
- Uint32 RecordSize; // Real Size of FILE Record
- Uint32 RecordSpace; // Allocated Size for FILE Record
-
- /**
- * Base address of the MFT containing this record
- */
- Uint64 Reference; // "File reference to the base FILE record" ???
-
- Uint16 NextAttribID;
- union
- {
- // Only in XP
- struct {
- Uint16 AlignTo4Byte;
- Uint16 RecordNumber; // Number of this MFT Record
- Uint16 UpdateSequenceNumber;
- Uint16 UpdateSequenceArray[];
- } XP;
- struct {
- Uint16 UpdateSequenceNumber;
- Uint16 UpdateSequenceArray[];
- } All;
- } OSDep;
-
-} PACKED tNTFS_FILE_Header;
+ Uint64 Count;
+ Uint64 LCN;
+};
-/**
- * File Attribute, follows the FILE header
- */
-typedef struct sNTFS_FILE_Attrib
+struct sNTFS_Attrib
{
- Uint32 Type; // See eNTFS_FILE_Attribs
- Uint32 Size; // Includes header
-
- Uint8 ResidentFlag; // (What does this mean?)
- Uint8 NameLength;
- Uint16 NameOffset;
- Uint16 Flags; // 0: Compressed, 14: Encrypted, 15: Sparse
- Uint16 AttributeID;
-
- union
- {
- struct {
- Uint32 AttribLen; // In words
- Uint16 AttribOfs;
- Uint8 IndexedFlag;
- Uint8 Padding;
-
- Uint16 Name[]; // UTF-16
- // Attribute Data
- } Resident;
+ tNTFS_Disk *Disk;
+ Uint32 Type;
+
+ char *Name;
+
+ Uint64 DataSize;
+
+ int IsResident;
+ union {
+ void *ResidentData;
struct {
- Uint64 StartingVCN;
- Uint64 LastVCN;
- Uint16 DataRunOfs;
- Uint16 CompressionUnitSize;
- Uint32 Padding;
- Uint64 AllocatedSize;
- Uint64 RealSize;
- Uint64 InitiatedSize; // One assumes, ammount of actual data stored
- Uint16 Name[]; // UTF-16
- // Data Runs
- } NonResident;
+ int nRuns;
+ int CompressionUnitL2Size; // 0 = uncompressed
+ Uint64 FirstPopulatedCluster;
+ tNTFS_AttribDataRun *Runs;
+ } NonResident;
};
-} PACKED tNTFS_FILE_Attrib;
+};
+// -- MFT Access / Manipulation
+extern tNTFS_Attrib *NTFS_GetAttrib(tNTFS_Disk *Disk, Uint32 MFTEntry, int Type, const char *Name, int DesIdx);
+extern size_t NTFS_ReadAttribData(tNTFS_Attrib *Attrib, Uint64 Offset, size_t Length, void *Buffer);
// -- dir.c
extern int NTFS_ReadDir(tVFS_Node *Node, int Pos, char Dest[FILENAME_MAX]);
extern tVFS_Node *NTFS_FindDir(tVFS_Node *Node, const char *Name, Uint Flags);
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