[pschweitzer] 31483: Reorganized NTFS driver header : - Renamed Magic (bad !) to jump, and OemName to OEMID - Created structures for BPB and EBPB and used them in BOOT_SECTOR one - Added a field to BOOY_SECTOR structure This is based on Technet doc and Alex Ionescu doc

Author: pschweitzer
Date: Sat Dec 29 00:56:19 2007
New Revision: 31483

URL: http://svn.reactos.org/svn/reactos?rev=31483&view=rev
Log:
Reorganized NTFS driver header :
- Renamed Magic (bad !) to jump, and OemName to OEMID
- Created structures for BPB and EBPB and used them in BOOT_SECTOR one
- Added a field to BOOY_SECTOR structure
This is based on Technet doc and Alex Ionescu doc

Modified:
    trunk/reactos/drivers/filesystems/ntfs/fsctl.c
    trunk/reactos/drivers/filesystems/ntfs/ntfs.h

Modified: trunk/reactos/drivers/filesystems/ntfs/fsctl.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/ntfs/f…
==============================================================================
--- trunk/reactos/drivers/filesystems/ntfs/fsctl.c (original)
+++ trunk/reactos/drivers/filesystems/ntfs/fsctl.c Sat Dec 29 00:56:19 2007
@@ -20,7 +20,7 @@
  *
  * COPYRIGHT:        See COPYING in the top level directory
  * PROJECT:          ReactOS kernel
- * FILE:             services/fs/ntfs/fsctl.c
+ * FILE:             drivers/filesystems/ntfs/fsctl.c
  * PURPOSE:          NTFS filesystem driver
  * PROGRAMMER:       Eric Kohl
  * Updated by Valentin Verkhovsky  2003/09/12
@@ -106,8 +106,8 @@
 			    TRUE);
   if (NT_SUCCESS(Status))
     {
-      DPRINT1("NTFS-identifier: [%.8s]\n", BootSector->OemName);
-      if (RtlCompareMemory(BootSector->OemName, "NTFS    ", 8) != 8)
+      DPRINT1("NTFS-identifier: [%.8s]\n", BootSector->OEMID);
+      if (RtlCompareMemory(BootSector->OEMID, "NTFS    ", 8) != 8)
 	{
 	  Status = STATUS_UNRECOGNIZED_VOLUME;
 	}
@@ -170,33 +170,33 @@
     }
 
   /* Read data from the bootsector */
-  NtfsInfo->BytesPerSector = BootSector->BytesPerSector;
-  NtfsInfo->SectorsPerCluster = BootSector->SectorsPerCluster;
-  NtfsInfo->BytesPerCluster = BootSector->BytesPerSector *
BootSector->SectorsPerCluster;
-  NtfsInfo->SectorCount = BootSector->SectorCount;
-
-  NtfsInfo->MftStart.QuadPart = BootSector->MftLocation;
-  NtfsInfo->MftMirrStart.QuadPart = BootSector->MftMirrLocation;
-  NtfsInfo->SerialNumber = BootSector->SerialNumber;
-  if (BootSector->ClustersPerMftRecord > 0)
-    NtfsInfo->BytesPerFileRecord = BootSector->ClustersPerMftRecord *
NtfsInfo->BytesPerCluster;
+  NtfsInfo->BytesPerSector = BootSector->BPB.BytesPerSector;
+  NtfsInfo->SectorsPerCluster = BootSector->BPB.SectorsPerCluster;
+  NtfsInfo->BytesPerCluster = BootSector->BPB.BytesPerSector *
BootSector->BPB.SectorsPerCluster;
+  NtfsInfo->SectorCount = BootSector->EBPB.SectorCount;
+
+  NtfsInfo->MftStart.QuadPart = BootSector->EBPB.MftLocation;
+  NtfsInfo->MftMirrStart.QuadPart = BootSector->EBPB.MftMirrLocation;
+  NtfsInfo->SerialNumber = BootSector->EBPB.SerialNumber;
+  if (BootSector->EBPB.ClustersPerMftRecord > 0)
+    NtfsInfo->BytesPerFileRecord = BootSector->EBPB.ClustersPerMftRecord *
NtfsInfo->BytesPerCluster;
   else
-    NtfsInfo->BytesPerFileRecord = 1 << (-BootSector->ClustersPerMftRecord);
+    NtfsInfo->BytesPerFileRecord = 1 <<
(-BootSector->EBPB.ClustersPerMftRecord);
 
 //#ifndef NDEBUG
   DbgPrint("Boot sector information:\n");
-  DbgPrint("  BytesPerSector:         %hu\n", BootSector->BytesPerSector);
-  DbgPrint("  SectorsPerCluster:      %hu\n",
BootSector->SectorsPerCluster);
-
-  DbgPrint("  SectorCount:            %I64u\n", BootSector->SectorCount);
-
-  DbgPrint("  MftStart:               %I64u\n", BootSector->MftLocation);
-  DbgPrint("  MftMirrStart:           %I64u\n",
BootSector->MftMirrLocation);
-
-  DbgPrint("  ClustersPerMftRecord:   %lx\n",
BootSector->ClustersPerMftRecord);
-  DbgPrint("  ClustersPerIndexRecord: %lx\n",
BootSector->ClustersPerIndexRecord);
-
-  DbgPrint("  SerialNumber:           %I64x\n", BootSector->SerialNumber);
+  DbgPrint("  BytesPerSector:         %hu\n",
BootSector->BPB.BytesPerSector);
+  DbgPrint("  SectorsPerCluster:      %hu\n",
BootSector->BPB.SectorsPerCluster);
+
+  DbgPrint("  SectorCount:            %I64u\n",
BootSector->EBPB.SectorCount);
+
+  DbgPrint("  MftStart:               %I64u\n",
BootSector->EBPB.MftLocation);
+  DbgPrint("  MftMirrStart:           %I64u\n",
BootSector->EBPB.MftMirrLocation);
+
+  DbgPrint("  ClustersPerMftRecord:   %lx\n",
BootSector->EBPB.ClustersPerMftRecord);
+  DbgPrint("  ClustersPerIndexRecord: %lx\n",
BootSector->EBPB.ClustersPerIndexRecord);
+
+  DbgPrint("  SerialNumber:           %I64x\n",
BootSector->EBPB.SerialNumber);
 //#endif
 
   ExFreePool(BootSector);

Modified: trunk/reactos/drivers/filesystems/ntfs/ntfs.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/ntfs/n…
==============================================================================
--- trunk/reactos/drivers/filesystems/ntfs/ntfs.h (original)
+++ trunk/reactos/drivers/filesystems/ntfs/ntfs.h Sat Dec 29 00:56:19 2007
@@ -20,28 +20,40 @@
 #define ROUND_UP(N, S) ((((N) + (S) - 1) / (S)) * (S))
 
 #include <pshpack1.h>
-typedef struct _BOOT_SECTOR
-{
-  UCHAR     Magic[3];				// 0x00
-  UCHAR     OemName[8];				// 0x03
+typedef struct _BIOS_PARAMETERS_BLOCK
+{
   USHORT    BytesPerSector;			// 0x0B
-  UCHAR     SectorsPerCluster;			// 0x0D
+  UCHAR     SectorsPerCluster;		// 0x0D
   UCHAR     Unused0[7];				// 0x0E
   UCHAR     MediaId;				// 0x15
   UCHAR     Unused1[2];				// 0x16
-  USHORT    SectorsPerTrack;
-  USHORT    Heads;
-  UCHAR     Unused2[8];
-  UCHAR     Unknown0[4]; /* always 80 00 80 00 */
-  ULONGLONG SectorCount;
-  ULONGLONG MftLocation;
-  ULONGLONG MftMirrLocation;
-  CHAR      ClustersPerMftRecord;
-  UCHAR      Unused3[3];
-  CHAR      ClustersPerIndexRecord;
-  UCHAR      Unused4[3];
+  USHORT    SectorsPerTrack;		// 0x18
+  USHORT    Heads;					// 0x1A
+  UCHAR     Unused2[8];				// 0x1C
+} BIOS_PARAMETERS_BLOCK, *PBIOS_PARAMETERS_BLOCK;
+
+typedef struct _EXTENDED_BIOS_PARAMETERS_BLOCK
+{
+  UCHAR     Unknown[4];				// 0x24, always 80 00 80 00
+  ULONGLONG SectorCount;			// 0x28
+  ULONGLONG MftLocation;			// 0x30
+  ULONGLONG MftMirrLocation;		// 0x38
+  CHAR      ClustersPerMftRecord;	// 0x40
+  UCHAR     Unused3[3];				// 0x41
+  CHAR      ClustersPerIndexRecord; // 0x44
+  UCHAR     Unused4[3];				// 0x45
   ULONGLONG SerialNumber;			// 0x48
-  UCHAR     BootCode[432];			// 0x50
+  UCHAR     Checksum[4];			// 0x50
+} EXTENDED_BIOS_PARAMETERS_BLOCK, *PEXTENDED_BIOS_PARAMETERS_BLOCK;
+
+typedef struct _BOOT_SECTOR
+{
+  UCHAR     Jump[3];				// 0x00
+  UCHAR     OEMID[8];				// 0x03
+  BIOS_PARAMETERS_BLOCK BPB;
+  EXTENDED_BIOS_PARAMETERS_BLOCK EBPB;
+  UCHAR     BootStrap[426];			// 0x54
+  USHORT    EndSector;				// 0x1FE
 } BOOT_SECTOR, *PBOOT_SECTOR;
 #include <poppack.h>