KernelLand/Modules/Filesystems/NTFS/main.c

   1 /*
   2  * Acess2 - NTFS Driver
   3  * By John Hodge (thePowersGang)
   4  *
   5  * main.c
   6  * - Driver core
   7  *
   8  * Reference: ntfsdoc.pdf
   9  */
  10 #define DEBUG   0
  11 #define VERBOSE 0
  12 #include <acess.h>
  13 #include <vfs.h>
  14 #include "common.h"
  15 #include <modules.h>
  16 #include <utf16.h>
  17
  18 // === PROTOTYPES ===
  19  int    NTFS_Install(char **Arguments);
  20  int    NTFS_Detect(int FD);
  21 tVFS_Node       *NTFS_InitDevice(const char *Devices, const char **Options);
  22 void    NTFS_Unmount(tVFS_Node *Node);
  23 // - MFT Related Functions
  24 tNTFS_FILE_Header       *NTFS_GetMFT(tNTFS_Disk *Disk, Uint32 MFTEntry);
  25 void    NTFS_ReleaseMFT(tNTFS_Disk *Disk, Uint32 MFTEntry, tNTFS_FILE_Header *Entry);
  26 tNTFS_Attrib    *NTFS_GetAttrib(tNTFS_Disk *Disk, Uint32 MFTEntry, int Type, const char *Name, int DesIdx);
  27 size_t  NTFS_ReadAttribData(tNTFS_Attrib *Attrib, Uint64 Offset, size_t Length, void *Buffer);
  28 void    NTFS_DumpEntry(tNTFS_Disk *Disk, Uint32 Entry);
  29
  30 // === GLOBALS ===
  31 MODULE_DEFINE(0, 0x0A /*v0.1*/, FS_NTFS, NTFS_Install, NULL);
  32 tVFS_Driver     gNTFS_FSInfo = {
  33         .Name = "ntfs",
  34         .Detect = NTFS_Detect,
  35         .InitDevice = NTFS_InitDevice,
  36         .Unmount = NTFS_Unmount,
  37         .GetNodeFromINode = NULL
  38 };
  39 tVFS_NodeType   gNTFS_DirType = {
  40         .TypeName = "NTFS-Dir",
  41         .ReadDir = NTFS_ReadDir,
  42         .FindDir = NTFS_FindDir,
  43         .Close = NTFS_Close
  44         };
  45 tVFS_NodeType   gNTFS_FileType = {
  46         .TypeName = "NTFS-File",
  47         .Read = NTFS_ReadFile,
  48         .Close = NTFS_Close
  49         };
  50
  51 tNTFS_Disk      gNTFS_Disks;
  52
  53 // === CODE ===
  54 /**
  55  * \brief Installs the NTFS driver
  56  */
  57 int NTFS_Install(char **Arguments)
  58 {
  59         VFS_AddDriver( &gNTFS_FSInfo );
  60         return 0;
  61 }
  62
  63 /**
  64  * \brief Detect if a volume is NTFS
  65  */
  66 int NTFS_Detect(int FD)
  67 {
  68         tNTFS_BootSector        bs;
  69         VFS_ReadAt(FD, 0, 512, &bs);
  70
  71         if( bs.BytesPerSector == 0 || (bs.BytesPerSector & 511) )
  72                 return 0;
  73
  74         Uint64  ncluster = bs.TotalSectorCount / bs.SectorsPerCluster;
  75         if( bs.MFTStart >= ncluster || bs.MFTMirrorStart >= ncluster )
  76                 return 0;
  77
  78         if( memcmp(bs.SystemID, "NTFS    ", 8) != 0 )
  79                 return 0;
  80
  81         return 1;
  82 }
  83
  84 /**
  85  * \brief Mount a NTFS volume
  86  */
  87 tVFS_Node *NTFS_InitDevice(const char *Device, const char **Options)
  88 {
  89         tNTFS_Disk      *disk;
  90         tNTFS_BootSector        bs;
  91
  92         disk = calloc( sizeof(tNTFS_Disk), 1 );
  93
  94         disk->FD = VFS_Open(Device, VFS_OPENFLAG_READ);
  95         if(!disk->FD) {
  96                 free(disk);
  97                 return NULL;
  98         }
  99
 100         VFS_ReadAt(disk->FD, 0, 512, &bs);
 101
 102 #if 0
 103         Log_Debug("FS_NTFS", "Jump = %02x%02x%02x",
 104                 bs.Jump[0],
 105                 bs.Jump[1],
 106                 bs.Jump[2]);
 107         Log_Debug("FS_NTFS", "SystemID = %02x%02x%02x%02x%02x%02x%02x%02x (%8C)",
 108                 bs.SystemID[0], bs.SystemID[1], bs.SystemID[2], bs.SystemID[3],
 109                 bs.SystemID[4], bs.SystemID[5], bs.SystemID[6], bs.SystemID[7],
 110                 bs.SystemID
 111                 );
 112         Log_Debug("FS_NTFS", "BytesPerSector = %i", bs.BytesPerSector);
 113         Log_Debug("FS_NTFS", "SectorsPerCluster = %i", bs.SectorsPerCluster);
 114         Log_Debug("FS_NTFS", "MediaDescriptor = 0x%x", bs.MediaDescriptor);
 115         Log_Debug("FS_NTFS", "SectorsPerTrack = %i", bs.SectorsPerTrack);
 116         Log_Debug("FS_NTFS", "Heads = %i", bs.Heads);
 117         Log_Debug("FS_NTFS", "TotalSectorCount = 0x%llx", bs.TotalSectorCount);
 118         Log_Debug("FS_NTFS", "MFTStart = 0x%llx", bs.MFTStart);
 119         Log_Debug("FS_NTFS", "MFTMirrorStart = 0x%llx", bs.MFTMirrorStart);
 120         Log_Debug("FS_NTFS", "ClustersPerMFTRecord = %i", bs.ClustersPerMFTRecord);
 121         Log_Debug("FS_NTFS", "ClustersPerIndexRecord = %i", bs.ClustersPerIndexRecord);
 122         Log_Debug("FS_NTFS", "SerialNumber = 0x%llx", bs.SerialNumber);
 123 #endif
 124
 125         disk->ClusterSize = bs.BytesPerSector * bs.SectorsPerCluster;
 126         disk->MFTBase = bs.MFTStart;
 127         Log_Debug("NTFS", "Cluster Size = %i KiB", disk->ClusterSize/1024);
 128         Log_Debug("NTFS", "MFT Base = %i", disk->MFTBase);
 129         Log_Debug("NTFS", "TotalSectorCount = 0x%x", bs.TotalSectorCount);
 130
 131         if( bs.ClustersPerMFTRecord < 0 ) {
 132                 disk->MFTRecSize = 1 << (-bs.ClustersPerMFTRecord);
 133         }
 134         else {
 135                 disk->MFTRecSize = bs.ClustersPerMFTRecord * disk->ClusterSize;
 136         }
 137         //NTFS_DumpEntry(disk, 0);      // $MFT
 138         //NTFS_DumpEntry(disk, 3);      // $VOLUME
 139
 140         disk->InodeCache = Inode_GetHandle();
 141
 142         disk->MFTDataAttr = NULL;
 143         disk->MFTDataAttr = NTFS_GetAttrib(disk, 0, NTFS_FileAttrib_Data, "", 0);
 144         //NTFS_DumpEntry(disk, 5);      // .
 145
 146         disk->RootDir.I30Root = NTFS_GetAttrib(disk, 5, NTFS_FileAttrib_IndexRoot, "$I30", 0);
 147         disk->RootDir.I30Allocation = NTFS_GetAttrib(disk, 5, NTFS_FileAttrib_IndexAllocation, "$I30", 0);
 148         disk->RootDir.Node.Inode = 5;   // MFT Ent #5 is filesystem root
 149         disk->RootDir.Node.ImplPtr = disk;
 150         disk->RootDir.Node.Type = &gNTFS_DirType;
 151         disk->RootDir.Node.Flags = VFS_FFLAG_DIRECTORY;
 152
 153         disk->RootDir.Node.UID = 0;
 154         disk->RootDir.Node.GID = 0;
 155
 156         disk->RootDir.Node.NumACLs = 1;
 157         disk->RootDir.Node.ACLs = &gVFS_ACL_EveryoneRX;
 158
 159         #if 0
 160         {
 161                 // Read from allocation
 162                 char buf[disk->ClusterSize];
 163                 size_t len = NTFS_ReadAttribData(disk->RootDir.I30Allocation, 0, sizeof(buf), buf);
 164                 Debug_HexDump("RootDir allocation", buf, len);
 165         }
 166         #endif
 167
 168         return &disk->RootDir.Node;
 169 }
 170
 171 /**
 172  * \brief Unmount an NTFS Disk
 173  */
 174 void NTFS_Unmount(tVFS_Node *Node)
 175 {
 176         tNTFS_Disk      *Disk = Node->ImplPtr;
 177         VFS_Close(Disk->FD);
 178         free(Disk);
 179 }
 180
 181 void NTFS_Close(tVFS_Node *Node)
 182 {
 183         tNTFS_Disk      *Disk = Node->ImplPtr;
 184         Inode_UncacheNode(Disk->InodeCache, Node->Inode);
 185 }
 186
 187 void NTFS_FreeNode(tVFS_Node *Node)
 188 {
 189         if( Node->Type == &gNTFS_DirType ) {
 190                 tNTFS_Directory *Dir = (void*)Node;
 191                 NTFS_FreeAttrib(Dir->I30Root);
 192                 NTFS_FreeAttrib(Dir->I30Allocation);
 193         }
 194         else {
 195                 tNTFS_File      *File = (void*)Node;
 196                 NTFS_FreeAttrib(File->Data);
 197         }
 198 }
 199
 200 int NTFS_int_ApplyUpdateSequence(void *Buffer, size_t BufLen, const Uint16 *Sequence, size_t NumEntries)
 201 {
 202         Uint16  cksum = Sequence[0];
 203         LOG("cksum = %04x", cksum);
 204         Sequence ++;
 205         Uint16  *buf16 = Buffer;
 206         for( int i = 0; i < NumEntries-1; i ++ )
 207         {
 208                 size_t  ofs = (i+1)*512 - 2;
 209                 if( ofs + 2 > BufLen ) {
 210                         // Oops?
 211                         Log_Warning("NTFS", "%x > %x", ofs+2, BufLen);
 212                 }
 213                 Uint16  *cksum_word = &buf16[ofs/2];
 214                 LOG("[%i]: %04x => %04x", i, Sequence[i], *cksum_word);
 215                 if( *cksum_word != cksum ) {
 216                         Log_Warning("NTFS", "Disk corruption detected");
 217                         return 1;
 218                 }
 219                 *cksum_word = Sequence[i];
 220         }
 221         return 0;
 222 }
 223
 224 tNTFS_FILE_Header *NTFS_GetMFT(tNTFS_Disk *Disk, Uint32 MFTEntry)
 225 {
 226         tNTFS_FILE_Header       *ret = malloc( Disk->MFTRecSize );
 227         if(!ret) {
 228                 Log_Warning("FS_NTFS", "malloc() fail!");
 229                 return NULL;
 230         }
 231
 232         // NOTE: The MFT is a file, and can get fragmented
 233         if( !Disk->MFTDataAttr ) {
 234                 VFS_ReadAt( Disk->FD,
 235                         Disk->MFTBase * Disk->ClusterSize + MFTEntry * Disk->MFTRecSize,
 236                         Disk->MFTRecSize,
 237                         ret);
 238         }
 239         else {
 240                 NTFS_ReadAttribData(Disk->MFTDataAttr, MFTEntry * Disk->MFTRecSize, Disk->MFTRecSize, ret);
 241         }
 242
 243         NTFS_int_ApplyUpdateSequence(ret, Disk->MFTRecSize,
 244                 (void*)((char*)ret + ret->UpdateSequenceOfs), ret->UpdateSequenceSize
 245                 );
 246
 247         return ret;
 248 }
 249
 250 void NTFS_ReleaseMFT(tNTFS_Disk *Disk, Uint32 MFTEntry, tNTFS_FILE_Header *Entry)
 251 {
 252         free(Entry);
 253 }
 254
 255 static inline Uint64 _getVariableLengthInt(const void *Ptr, int Length, int bExtend)
 256 {
 257         const Uint8     *data = Ptr;
 258         Uint64  bits = 0;
 259         for( int i = 0; i < Length; i ++ )
 260                 bits |= (Uint64)data[i] << (i*8);
 261         if( bExtend && Length && data[Length-1] & 0x80 ) {
 262                 for( int i = Length; i < 8; i ++ )
 263                         bits |= 0xFF << (i*8);
 264         }
 265         return bits;    //
 266 }
 267
 268 const void *_GetDataRun(const void *ptr, const void *limit, Uint64 LastLCN, Uint64 *Count, Uint64 *LCN)
 269 {
 270         // Clean exit?
 271         if( ptr == limit ) {
 272                 LOG("Clean end of list");
 273                 return NULL;
 274         }
 275
 276         const Uint8     *data = ptr;
 277
 278         // Offset size
 279         Uint8   ofsSize = data[0] >> 4;
 280         Uint8   lenSize = data[0] & 0xF;
 281         LOG("ofsSize = %i, lenSize = %i", ofsSize, lenSize);
 282         if( ofsSize > 8 )
 283                 return NULL;
 284         if( lenSize > 8 || lenSize < 1 )
 285                 return NULL;
 286         if( data + 1 + ofsSize + lenSize > (const Uint8*)limit )
 287                 return NULL;
 288
 289         if( Count ) {
 290                 *Count = _getVariableLengthInt(data + 1, lenSize, 0);
 291         }
 292         if( LCN ) {
 293                 *LCN = LastLCN + (Sint64)_getVariableLengthInt(data + 1 + lenSize, ofsSize, 1);
 294         }
 295
 296         return data + 1 + ofsSize + lenSize;
 297 }
 298
 299 tNTFS_Attrib *NTFS_GetAttrib(tNTFS_Disk *Disk, Uint32 MFTEntry, int Type, const char *Name, int DesIdx)
 300 {
 301         ENTER("pDisk xMFTEntry xType sName iDesIdx",
 302                 Disk, MFTEntry, Type, Name, DesIdx);
 303          int    curIdx = 0;
 304         // TODO: Scan cache of attributes
 305
 306         // Load MFT entry
 307         tNTFS_FILE_Header *hdr = NTFS_GetMFT(Disk, MFTEntry);
 308         LOG("hdr = %p", hdr);
 309
 310         tNTFS_FILE_Attrib       *attr;
 311         for( size_t ofs = hdr->FirstAttribOfs; ofs < hdr->RecordSize; ofs += attr->Size )
 312         {
 313                 attr = (void*)( (tVAddr)hdr + ofs );
 314                 // Sanity #1: Type
 315                 if( ofs + 4 > hdr->RecordSize )
 316                         break ;
 317                 // End-of-list?
 318                 if( attr->Type == 0xFFFFFFFF )
 319                         break;
 320                 // Sanity #2: Type,Size
 321                 if( ofs + 8 > hdr->RecordSize )
 322                         break;
 323                 // Sanity #3: Reported size
 324                 if( attr->Size < sizeof(attr->Resident) )
 325                         break;
 326                 // Sanity #4: Reported size fits
 327                 if( ofs + attr->Size > hdr->RecordSize )
 328                         break;
 329
 330                 // - Chceck if this attribute is the one requested
 331                 LOG("Type check %x == %x", attr->Type, Type);
 332                 if( attr->Type != Type )
 333                         continue;
 334                 if( Name ) {
 335                         LOG("Name check = '%s'", Name);
 336                         const void      *name16 = (char*)attr + attr->NameOffset;
 337                         if( UTF16_CompareWithUTF8(attr->NameLength, name16, Name) != 0 )
 338                                 continue ;
 339                 }
 340                 LOG("Idx check %i", curIdx);
 341                 if( curIdx++ != DesIdx )
 342                         continue ;
 343
 344                 // - Construct (and cache) attribute description
 345                 ASSERT(attr->NameOffset % 1 == 0);
 346                 Uint16  *name16 = (Uint16*)attr + attr->NameOffset/2;
 347                 size_t  namelen = UTF16_ConvertToUTF8(0, NULL, attr->NameLength, name16);
 348                 size_t  edatalen = (attr->NonresidentFlag ? 0 : attr->Resident.AttribLen*4);
 349                 tNTFS_Attrib *ret = malloc( sizeof(tNTFS_Attrib) + namelen + 1 + edatalen );
 350                 if(!ret) {
 351                         LEAVE('n');
 352                         return NULL;
 353                 }
 354                 if( attr->NonresidentFlag )
 355                         ret->Name = (void*)(ret + 1);
 356                 else {
 357                         ret->ResidentData = ret + 1;
 358                         ret->Name = (char*)ret->ResidentData + edatalen;
 359                 }
 360
 361                 ret->Disk = Disk;
 362                 ret->Type = attr->Type;
 363                 UTF16_ConvertToUTF8(namelen+1, ret->Name, attr->NameLength, name16);
 364                 ret->IsResident = !(attr->NonresidentFlag);
 365
 366                 LOG("Creating with %x '%s'", ret->Type, ret->Name);
 367
 368                 if( attr->NonresidentFlag )
 369                 {
 370                         ret->DataSize = attr->NonResident.RealSize;
 371                         ret->NonResident.CompressionUnitL2Size = attr->NonResident.CompressionUnitSize;
 372                         ret->NonResident.FirstPopulatedCluster = attr->NonResident.StartingVCN;
 373                         // Count data runs
 374                         const char *limit = (char*)attr + attr->Size;
 375                          int    nruns = 0;
 376                         const char *datarun = (char*)attr + attr->NonResident.DataRunOfs;
 377                         while( (datarun = _GetDataRun(datarun, limit, 0, NULL, NULL)) )
 378                                 nruns ++;
 379                         LOG("nruns = %i", nruns);
 380                         // Allocate data runs
 381                         ret->NonResident.nRuns = nruns;
 382                         ret->NonResident.Runs = malloc( sizeof(tNTFS_AttribDataRun) * nruns );
 383                          int    i = 0;
 384                         datarun = (char*)attr + attr->NonResident.DataRunOfs;
 385                         Uint64  lastLCN = 0;
 386                         while( datarun && i < nruns )
 387                         {
 388                                 tNTFS_AttribDataRun     *run = &ret->NonResident.Runs[i];
 389                                 datarun = _GetDataRun(datarun,limit, lastLCN, &run->Count, &run->LCN);
 390                                 LOG("Run %i: %llx+%llx", i, run->LCN, run->Count);
 391                                 lastLCN = run->LCN;
 392                                 i ++;
 393                         }
 394                 }
 395                 else
 396                 {
 397                         ret->DataSize = edatalen;
 398                         memcpy(ret->ResidentData, (char*)attr + attr->Resident.AttribOfs, edatalen);
 399                 }
 400
 401                 LEAVE('p', ret);
 402                 return ret;
 403         }
 404
 405         NTFS_ReleaseMFT(Disk, MFTEntry, hdr);
 406         LEAVE('n');
 407         return NULL;
 408 }
 409
 410 void NTFS_FreeAttrib(tNTFS_Attrib *Attrib)
 411 {
 412         if( Attrib )
 413                 free(Attrib);
 414 }
 415
 416 size_t NTFS_ReadAttribData(tNTFS_Attrib *Attrib, Uint64 Offset, size_t Length, void *Buffer)
 417 {
 418         if( !Attrib )
 419                 return 0;
 420         if( Offset >= Attrib->DataSize )
 421                 return 0;
 422         if( Length > Attrib->DataSize )
 423                 Length = Attrib->DataSize;
 424         if( Offset + Length > Attrib->DataSize )
 425                 Length = Attrib->DataSize - Offset;
 426
 427         if( Attrib->IsResident )
 428         {
 429                 memcpy(Buffer, Attrib->ResidentData, Length);
 430                 return Length;
 431         }
 432         else
 433         {
 434                 size_t  ret = 0;
 435                 tNTFS_Disk      *Disk = Attrib->Disk;
 436                 Uint64  first_cluster = Offset / Disk->ClusterSize;
 437                 size_t  cluster_ofs = Offset % Disk->ClusterSize;
 438                 if( first_cluster < Attrib->NonResident.FirstPopulatedCluster ) {
 439                         Log_Warning("NTFS", "TODO: Ofs < FirstVCN");
 440                 }
 441                 first_cluster -= Attrib->NonResident.FirstPopulatedCluster;
 442                 if( Attrib->NonResident.CompressionUnitL2Size )
 443                 {
 444                         // TODO: Compression
 445                         Log_Warning("NTFS", "Compression unsupported");
 446                         // NOTE: Compressed blocks show up in pairs of runs
 447                         // - The first contains the compressed data
 448                         // - The second is a placeholder 'sparse' (LCN=0) to align to the compression unit
 449                 }
 450                 else
 451                 {
 452                         // Iterate through data runs until the desired run is located
 453                         for( int i = 0; i < Attrib->NonResident.nRuns && Length; i ++ )
 454                         {
 455                                 tNTFS_AttribDataRun     *run = &Attrib->NonResident.Runs[i];
 456                                 if( first_cluster > run->Count ) {
 457                                         first_cluster -= run->Count;
 458                                         continue ;
 459                                 }
 460                                 size_t  avail_bytes = (run->Count-first_cluster)*Disk->ClusterSize - cluster_ofs;
 461                                 if( avail_bytes > Length )
 462                                         avail_bytes = Length;
 463                                 // Read from this extent
 464                                 if( run->LCN == 0 ) {
 465                                         memset(Buffer, 0, avail_bytes);
 466                                 }
 467                                 else {
 468                                         VFS_ReadAt(Disk->FD,
 469                                                 (run->LCN + first_cluster)*Disk->ClusterSize + cluster_ofs,
 470                                                 avail_bytes,
 471                                                 Buffer
 472                                                 );
 473                                 }
 474                                 Length -= avail_bytes;
 475                                 Buffer += avail_bytes;
 476                                 ret += avail_bytes;
 477                                 first_cluster = 0;
 478                                 cluster_ofs = 0;
 479                                 continue ;
 480                         }
 481                 }
 482                 return ret;
 483         }
 484 }
 485
 486 /**
 487  * \brief Dumps a MFT Entry
 488  */
 489 void NTFS_DumpEntry(tNTFS_Disk *Disk, Uint32 Entry)
 490 {
 491         tNTFS_FILE_Attrib       *attr;
 492          int    i;
 493
 494
 495         tNTFS_FILE_Header       *hdr = NTFS_GetMFT(Disk, Entry);
 496         if(!hdr) {
 497                 Log_Warning("FS_NTFS", "malloc() fail!");
 498                 return ;
 499         }
 500
 501         Log_Debug("FS_NTFS", "MFT Entry #%i", Entry);
 502         Log_Debug("FS_NTFS", "- Magic = 0x%08x (%4C)", hdr->Magic, &hdr->Magic);
 503         Log_Debug("FS_NTFS", "- UpdateSequenceOfs = 0x%x", hdr->UpdateSequenceOfs);
 504         Log_Debug("FS_NTFS", "- UpdateSequenceSize = 0x%x", hdr->UpdateSequenceSize);
 505         Log_Debug("FS_NTFS", "- LSN = 0x%x", hdr->LSN);
 506         Log_Debug("FS_NTFS", "- SequenceNumber = %i", hdr->SequenceNumber);
 507         Log_Debug("FS_NTFS", "- HardLinkCount = %i", hdr->HardLinkCount);
 508         Log_Debug("FS_NTFS", "- FirstAttribOfs = 0x%x", hdr->FirstAttribOfs);
 509         Log_Debug("FS_NTFS", "- Flags = 0x%x", hdr->Flags);
 510         Log_Debug("FS_NTFS", "- RecordSize = 0x%x", hdr->RecordSize);
 511         Log_Debug("FS_NTFS", "- RecordSpace = 0x%x", hdr->RecordSpace);
 512         Log_Debug("FS_NTFS", "- Reference = 0x%llx", hdr->Reference);
 513         Log_Debug("FS_NTFS", "- NextAttribID = 0x%04x", hdr->NextAttribID);
 514
 515         attr = (void*)( (char*)hdr + hdr->FirstAttribOfs );
 516         i = 0;
 517         while( (tVAddr)attr < (tVAddr)hdr + hdr->RecordSize )
 518         {
 519                 if(attr->Type == 0xFFFFFFFF)    break;
 520                 Log_Debug("FS_NTFS", "- Attribute %i", i ++);
 521                 Log_Debug("FS_NTFS", " > Type = 0x%x", attr->Type);
 522                 Log_Debug("FS_NTFS", " > Size = 0x%x", attr->Size);
 523                 Log_Debug("FS_NTFS", " > ResidentFlag = 0x%x", attr->NonresidentFlag);
 524                 Log_Debug("FS_NTFS", " > NameLength = %i", attr->NameLength);
 525                 Log_Debug("FS_NTFS", " > NameOffset = 0x%x", attr->NameOffset);
 526                 Log_Debug("FS_NTFS", " > Flags = 0x%x", attr->Flags);
 527                 Log_Debug("FS_NTFS", " > AttributeID = 0x%x", attr->AttributeID);
 528                 {
 529                         Uint16  *name16 = (void*)((char*)attr + attr->NameOffset);
 530                         size_t  len = UTF16_ConvertToUTF8(0, NULL, attr->NameLength, name16);
 531                         char    name[len+1];
 532                         UTF16_ConvertToUTF8(len+1, name, attr->NameLength, name16);
 533                         Log_Debug("FS_NTFS", " > Name = '%s'", name);
 534                 }
 535                 if( !attr->NonresidentFlag ) {
 536                         Log_Debug("FS_NTFS", " > AttribLen = 0x%x", attr->Resident.AttribLen);
 537                         Log_Debug("FS_NTFS", " > AttribOfs = 0x%x", attr->Resident.AttribOfs);
 538                         Log_Debug("FS_NTFS", " > IndexedFlag = 0x%x", attr->Resident.IndexedFlag);
 539                         Debug_HexDump("FS_NTFS",
 540                                 (void*)( (tVAddr)attr + attr->Resident.AttribOfs ),
 541                                 attr->Resident.AttribLen
 542                                 );
 543                 }
 544                 else {
 545                         Log_Debug("FS_NTFS", " > StartingVCN = 0x%llx", attr->NonResident.StartingVCN);
 546                         Log_Debug("FS_NTFS", " > LastVCN = 0x%llx", attr->NonResident.LastVCN);
 547                         Log_Debug("FS_NTFS", " > DataRunOfs = 0x%x", attr->NonResident.DataRunOfs);
 548                         Log_Debug("FS_NTFS", " > CompressionUnitSize = 0x%x", attr->NonResident.CompressionUnitSize);
 549                         Log_Debug("FS_NTFS", " > AllocatedSize = 0x%llx", attr->NonResident.AllocatedSize);
 550                         Log_Debug("FS_NTFS", " > RealSize = 0x%llx", attr->NonResident.RealSize);
 551                         Log_Debug("FS_NTFS", " > InitiatedSize = 0x%llx", attr->NonResident.InitiatedSize);
 552                         Debug_HexDump("FS_NTFS",
 553                                 (char*)attr + attr->NonResident.DataRunOfs,
 554                                 attr->Size - attr->NonResident.DataRunOfs
 555                                 );
 556                 }
 557
 558                 attr = (void*)( (tVAddr)attr + attr->Size );
 559         }
 560
 561         NTFS_ReleaseMFT(Disk, Entry, hdr);
 562 }