#include "vfatlib.h"
-static ULONG
-GetShiftCount(ULONG Value)
-{
- ULONG i = 1;
- while (Value > 0)
- {
- i++;
- Value /= 2;
- }
- return i - 2;
-}
-
-
NTSTATUS
-VfatInitialize()
+VfatInitialize(VOID)
{
DPRINT("VfatInitialize()\n");
return STATUS_SUCCESS;
}
-static NTSTATUS
-VfatWriteBootSector(IN HANDLE FileHandle,
- IN PFAT32_BOOT_SECTOR BootSector)
-{
- OBJECT_ATTRIBUTES ObjectAttributes;
- IO_STATUS_BLOCK IoStatusBlock;
- UNICODE_STRING Name;
- NTSTATUS Status;
- PUCHAR NewBootSector;
- LARGE_INTEGER FileOffset;
-
- /* Allocate buffer for new bootsector */
- NewBootSector = (PUCHAR)RtlAllocateHeap(RtlGetProcessHeap(),
- 0,
- SECTORSIZE);
- if (NewBootSector == NULL)
- return(STATUS_INSUFFICIENT_RESOURCES);
-
- /* Zero the new bootsector */
- memset(NewBootSector, 0, SECTORSIZE);
-
- /* Copy FAT32 BPB to new bootsector */
- memcpy((NewBootSector + 3),
- &BootSector->OEMName[0],
- 87); /* FAT32 BPB length (up to (not including) Res2) */
-
- /* Write sector 0 */
- FileOffset.QuadPart = 0ULL;
- Status = NtWriteFile(FileHandle,
- NULL,
- NULL,
- NULL,
- &IoStatusBlock,
- NewBootSector,
- SECTORSIZE,
- &FileOffset,
- NULL);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("NtWriteFile() failed (Status %lx)\n", Status);
- RtlFreeHeap(RtlGetProcessHeap(), 0, NewBootSector);
- return(Status);
- }
-
- /* Write backup boot sector */
- if (BootSector->BootBackup != 0x0000)
- {
- FileOffset.QuadPart = (ULONGLONG)((ULONG) BootSector->BootBackup * SECTORSIZE);
- Status = NtWriteFile(FileHandle,
- NULL,
- NULL,
- NULL,
- &IoStatusBlock,
- NewBootSector,
- SECTORSIZE,
- &FileOffset,
- NULL);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("NtWriteFile() failed (Status %lx)\n", Status);
- RtlFreeHeap(RtlGetProcessHeap(), 0, NewBootSector);
- return(Status);
- }
- }
-
- /* Free the new boot sector */
- RtlFreeHeap(RtlGetProcessHeap(), 0, NewBootSector);
-
- return(Status);
-}
-
-
-static NTSTATUS
-VfatWriteFsInfo(IN HANDLE FileHandle,
- IN PFAT32_BOOT_SECTOR BootSector)
-{
- OBJECT_ATTRIBUTES ObjectAttributes;
- IO_STATUS_BLOCK IoStatusBlock;
- UNICODE_STRING Name;
- NTSTATUS Status;
- PFAT32_FSINFO FsInfo;
- LARGE_INTEGER FileOffset;
-
- /* Allocate buffer for new sector */
- FsInfo = (PFAT32_FSINFO)RtlAllocateHeap(RtlGetProcessHeap(),
- 0,
- BootSector->BytesPerSector);
- if (FsInfo == NULL)
- return(STATUS_INSUFFICIENT_RESOURCES);
-
- /* Zero the new sector */
- memset(FsInfo, 0, BootSector->BytesPerSector);
-
- FsInfo->LeadSig = 0x41615252;
- FsInfo->StrucSig = 0x61417272;
- FsInfo->FreeCount = 0xffffffff;
- FsInfo->NextFree = 0xffffffff;
-
- /* Write sector */
- FileOffset.QuadPart = BootSector->FSInfoSector * BootSector->BytesPerSector;
- Status = NtWriteFile(FileHandle,
- NULL,
- NULL,
- NULL,
- &IoStatusBlock,
- FsInfo,
- BootSector->BytesPerSector,
- &FileOffset,
- NULL);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("NtWriteFile() failed (Status %lx)\n", Status);
- RtlFreeHeap(RtlGetProcessHeap(), 0, FsInfo);
- return(Status);
- }
-
- /* Free the new sector buffer */
- RtlFreeHeap(RtlGetProcessHeap(), 0, FsInfo);
-
- return(Status);
-}
-
-
-static NTSTATUS
-VfatWriteFAT(IN HANDLE FileHandle,
- ULONG SectorOffset,
- IN PFAT32_BOOT_SECTOR BootSector)
-{
- OBJECT_ATTRIBUTES ObjectAttributes;
- IO_STATUS_BLOCK IoStatusBlock;
- UNICODE_STRING Name;
- NTSTATUS Status;
- PUCHAR Buffer;
- LARGE_INTEGER FileOffset;
- ULONG i;
-
- /* Allocate buffer */
- Buffer = (PUCHAR)RtlAllocateHeap(RtlGetProcessHeap(),
- 0,
- BootSector->BytesPerSector);
- if (Buffer == NULL)
- return(STATUS_INSUFFICIENT_RESOURCES);
-
- /* Zero the buffer */
- memset(Buffer, 0, BootSector->BytesPerSector);
-
- /* FAT cluster 0 */
- Buffer[0] = 0xf8; /* Media type */
- Buffer[1] = 0xff;
- Buffer[2] = 0xff;
- Buffer[3] = 0xff;
- /* FAT cluster 1 */
- Buffer[4] = 0xcf; /* Clean shutdown, no disk read/write errors, end-of-cluster (EOC) mark */
- Buffer[5] = 0xff;
- Buffer[6] = 0xff;
- Buffer[7] = 0xf7;
- /* FAT cluster 2 */
- Buffer[8] = 0xff; /* End of root directory */
- Buffer[9] = 0xff;
- Buffer[10] = 0xff;
- Buffer[11] = 0x0f;
-
- /* Write first sector of the FAT */
- FileOffset.QuadPart = (SectorOffset + BootSector->ReservedSectors) * BootSector->BytesPerSector;
- Status = NtWriteFile(FileHandle,
- NULL,
- NULL,
- NULL,
- &IoStatusBlock,
- Buffer,
- BootSector->BytesPerSector,
- &FileOffset,
- NULL);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("NtWriteFile() failed (Status %lx)\n", Status);
- RtlFreeHeap(RtlGetProcessHeap(), 0, Buffer);
- return(Status);
- }
-
- /* Zero the buffer */
- memset(Buffer, 0, BootSector->BytesPerSector);
-
- /* Zero the rest of the FAT */
- for (i = 1; i < BootSector->FATSectors32 - 1; i++)
- {
- /* Zero one sector of the FAT */
- FileOffset.QuadPart = (SectorOffset + BootSector->ReservedSectors + i) * BootSector->BytesPerSector;
- Status = NtWriteFile(FileHandle,
- NULL,
- NULL,
- NULL,
- &IoStatusBlock,
- Buffer,
- BootSector->BytesPerSector,
- &FileOffset,
- NULL);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("NtWriteFile() failed (Status %lx)\n", Status);
- RtlFreeHeap(RtlGetProcessHeap(), 0, Buffer);
- return(Status);
- }
- }
-
- /* Free the buffer */
- RtlFreeHeap(RtlGetProcessHeap(), 0, Buffer);
-
- return(Status);
-}
-
-
-static NTSTATUS
-VfatWriteRootDirectory(IN HANDLE FileHandle,
- IN PFAT32_BOOT_SECTOR BootSector)
-{
- OBJECT_ATTRIBUTES ObjectAttributes;
- IO_STATUS_BLOCK IoStatusBlock;
- NTSTATUS Status;
- PUCHAR Buffer;
- LARGE_INTEGER FileOffset;
- ULONGLONG FirstDataSector;
- ULONGLONG FirstRootDirSector;
-
- /* Allocate buffer for the cluster */
- Buffer = (PUCHAR)RtlAllocateHeap(RtlGetProcessHeap(),
- 0,
- BootSector->SectorsPerCluster * BootSector->BytesPerSector);
- if (Buffer == NULL)
- return(STATUS_INSUFFICIENT_RESOURCES);
-
- /* Zero the buffer */
- memset(Buffer, 0, BootSector->SectorsPerCluster * BootSector->BytesPerSector);
-
- DPRINT("BootSector->ReservedSectors = %lu\n", BootSector->ReservedSectors);
- DPRINT("BootSector->FATSectors32 = %lu\n", BootSector->FATSectors32);
- DPRINT("BootSector->RootCluster = %lu\n", BootSector->RootCluster);
- DPRINT("BootSector->SectorsPerCluster = %lu\n", BootSector->SectorsPerCluster);
-
- /* Write cluster */
- FirstDataSector = BootSector->ReservedSectors +
- (BootSector->FATCount * BootSector->FATSectors32) + 0 /* RootDirSectors */;
-
- DPRINT("FirstDataSector = %lu\n", FirstDataSector);
-
- FirstRootDirSector = ((BootSector->RootCluster - 2) * BootSector->SectorsPerCluster) + FirstDataSector;
- FileOffset.QuadPart = FirstRootDirSector * BootSector->BytesPerSector;
-
- DPRINT("FirstRootDirSector = %lu\n", FirstRootDirSector);
- DPRINT("FileOffset = %lu\n", FileOffset.QuadPart);
-
- Status = NtWriteFile(FileHandle,
- NULL,
- NULL,
- NULL,
- &IoStatusBlock,
- Buffer,
- BootSector->SectorsPerCluster * BootSector->BytesPerSector,
- &FileOffset,
- NULL);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("NtWriteFile() failed (Status %lx)\n", Status);
- RtlFreeHeap(RtlGetProcessHeap(), 0, Buffer);
- return(Status);
- }
-
- /* Free the buffer */
- RtlFreeHeap(RtlGetProcessHeap(), 0, Buffer);
-
- return(Status);
-}
-
NTSTATUS
VfatFormat(
DISK_GEOMETRY DiskGeometry;
IO_STATUS_BLOCK Iosb;
HANDLE FileHandle;
- SCSI_ADDRESS ScsiAddress;
PARTITION_INFORMATION PartitionInfo;
- FAT32_BOOT_SECTOR BootSector;
- ANSI_STRING VolumeLabel;
NTSTATUS Status;
- ULONG RootDirSectors;
- ULONG TmpVal1;
- ULONG TmpVal2;
- DPRINT("VfatFormat(DriveRoot '%S')\n", DriveRoot->Buffer);
+ DPRINT("VfatFormat(DriveRoot '%wZ')\n", DriveRoot);
InitializeObjectAttributes(&ObjectAttributes,
DriveRoot,
if (DiskGeometry.MediaType == FixedMedia)
{
- DPRINT("Cylinders %d\n", DiskGeometry.Cylinders.QuadPart);
- DPRINT("TracksPerCylinder %d\n", DiskGeometry.TracksPerCylinder);
- DPRINT("SectorsPerTrack %d\n", DiskGeometry.SectorsPerTrack);
- DPRINT("BytesPerSector %d\n", DiskGeometry.BytesPerSector);
- DPRINT("DiskSize %d\n",
+ DPRINT("Cylinders %I64d\n", DiskGeometry.Cylinders.QuadPart);
+ DPRINT("TracksPerCylinder %ld\n", DiskGeometry.TracksPerCylinder);
+ DPRINT("SectorsPerTrack %ld\n", DiskGeometry.SectorsPerTrack);
+ DPRINT("BytesPerSector %ld\n", DiskGeometry.BytesPerSector);
+ DPRINT("DiskSize %I64d\n",
DiskGeometry.Cylinders.QuadPart *
(ULONGLONG)DiskGeometry.TracksPerCylinder *
(ULONGLONG)DiskGeometry.SectorsPerTrack *
return Status;
}
- DPRINT("PartitionType 0x%x\n", PartitionInfo.PartitionType);
- DPRINT("StartingOffset %d\n", PartitionInfo.StartingOffset);
- DPRINT("PartitionLength %d\n", PartitionInfo.PartitionLength);
- DPRINT("HiddenSectors %d\n", PartitionInfo.HiddenSectors);
- DPRINT("PartitionNumber %d\n", PartitionInfo.PartitionNumber);
- DPRINT("BootIndicator 0x%x\n", PartitionInfo.BootIndicator);
- DPRINT("RewritePartition %d\n", PartitionInfo.RewritePartition);
- DPRINT("RecognizedPartition %d\n", PartitionInfo.RecognizedPartition);
+ /*
+ * FIXME: This is a hack!
+ * Partitioning software MUST set the correct number of hidden sectors!
+ */
+ PartitionInfo.HiddenSectors = DiskGeometry.SectorsPerTrack;
}
else
{
- DPRINT1("FIXME: Removable media is not supported\n");
- NtClose(FileHandle);
- return Status;
- }
-
- memset(&BootSector, 0, sizeof(FAT32_BOOT_SECTOR));
- memcpy(&BootSector.OEMName[0], "MSWIN4.1", 8);
- BootSector.BytesPerSector = DiskGeometry.BytesPerSector;
- BootSector.SectorsPerCluster = 4096 / BootSector.BytesPerSector; // 4KB clusters /* FIXME: */
- BootSector.ReservedSectors = 32;
- BootSector.FATCount = 2;
- BootSector.RootEntries = 0;
- BootSector.Sectors = 0;
- BootSector.Media = 0xf8;
- BootSector.FATSectors = 0;
- BootSector.SectorsPerTrack = DiskGeometry.SectorsPerTrack;
- BootSector.Heads = DiskGeometry.TracksPerCylinder;
- BootSector.HiddenSectors = 63; /* FIXME: */
- BootSector.SectorsHuge = PartitionInfo.PartitionLength.QuadPart >>
- GetShiftCount(BootSector.BytesPerSector); /* Use shifting to avoid 64-bit division */
- BootSector.FATSectors32 = 0; /* Set later */
- BootSector.ExtFlag = 0; /* Mirror all FATs */
- BootSector.FSVersion = 0x0000; /* 0:0 */
- BootSector.RootCluster = 2;
- BootSector.FSInfoSector = 1;
- BootSector.BootBackup = 6;
- BootSector.Drive = 0xff; /* No BIOS boot drive available */ //0x80; /* FIXME: */
- BootSector.ExtBootSignature = 0x29;
- BootSector.VolumeID = 0x45768798; /* FIXME: */
- if ((Label == NULL) || (Label->Buffer == NULL))
- {
- memcpy(&BootSector.VolumeLabel[0], "NO NAME ", 11);
+ PartitionInfo.PartitionType = 0;
+ PartitionInfo.StartingOffset.QuadPart = 0ULL;
+ PartitionInfo.PartitionLength.QuadPart =
+ DiskGeometry.Cylinders.QuadPart *
+ (ULONGLONG)DiskGeometry.TracksPerCylinder *
+ (ULONGLONG)DiskGeometry.SectorsPerTrack *
+ (ULONGLONG)DiskGeometry.BytesPerSector;
+ PartitionInfo.HiddenSectors = 0;
+ PartitionInfo.PartitionNumber = 0;
+ PartitionInfo.BootIndicator = FALSE;
+ PartitionInfo.RewritePartition = FALSE;
+ PartitionInfo.RecognizedPartition = FALSE;
+ }
+
+ DPRINT("PartitionType 0x%x\n", PartitionInfo.PartitionType);
+ DPRINT("StartingOffset %I64d\n", PartitionInfo.StartingOffset.QuadPart);
+ DPRINT("PartitionLength %I64d\n", PartitionInfo.PartitionLength.QuadPart);
+ DPRINT("HiddenSectors %lu\n", PartitionInfo.HiddenSectors);
+ DPRINT("PartitionNumber %d\n", PartitionInfo.PartitionNumber);
+ DPRINT("BootIndicator 0x%x\n", PartitionInfo.BootIndicator);
+ DPRINT("RewritePartition %d\n", PartitionInfo.RewritePartition);
+ DPRINT("RecognizedPartition %d\n", PartitionInfo.RecognizedPartition);
+
+ if (PartitionInfo.PartitionLength.QuadPart < (4200ULL * 1024ULL))
+ {
+ /* FAT12 (volume is smaller than 4.1MB) */
+ Status = Fat12Format (FileHandle,
+ &PartitionInfo,
+ &DiskGeometry,
+ Label,
+ QuickFormat,
+ ClusterSize,
+ Callback);
+ }
+ else if (PartitionInfo.PartitionLength.QuadPart < (512ULL * 1024ULL * 1024ULL))
+ {
+ /* FAT16 (volume is smaller than 512MB) */
+ Status = Fat16Format (FileHandle,
+ &PartitionInfo,
+ &DiskGeometry,
+ Label,
+ QuickFormat,
+ ClusterSize,
+ Callback);
}
else
{
- RtlUnicodeStringToAnsiString(&VolumeLabel, Label, TRUE);
- memset(&BootSector.VolumeLabel[0], ' ', 11);
- memcpy(&BootSector.VolumeLabel[0], VolumeLabel.Buffer,
- VolumeLabel.Length < 11 ? VolumeLabel.Length : 11);
- RtlFreeAnsiString(&VolumeLabel);
- }
- memcpy(&BootSector.SysType[0], "FAT32 ", 8);
-
- RootDirSectors = ((BootSector.RootEntries * 32) +
- (BootSector.BytesPerSector - 1)) / BootSector.BytesPerSector;
- TmpVal1 = BootSector.SectorsHuge - (BootSector.ReservedSectors + RootDirSectors);
- TmpVal2 = (256 * BootSector.SectorsPerCluster) + BootSector.FATCount;
- if (TRUE /* FAT32 */)
- {
- TmpVal2 /= 2;
- BootSector.FATSectors = 0;
- BootSector.FATSectors32 = (TmpVal1 + (TmpVal2 - 1)) / TmpVal2;
- }
-
- Status = VfatWriteBootSector(FileHandle,
- &BootSector);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("VfatWriteBootSector() failed with status 0x%.08x\n", Status);
- NtClose(FileHandle);
- return Status;
- }
-
- Status = VfatWriteFsInfo(FileHandle,
- &BootSector);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("VfatWriteFsInfo() failed with status 0x%.08x\n", Status);
- NtClose(FileHandle);
- return Status;
- }
-
- /* Write first FAT copy */
- Status = VfatWriteFAT(FileHandle,
- 0,
- &BootSector);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("VfatWriteFAT() failed with status 0x%.08x\n", Status);
- NtClose(FileHandle);
- return Status;
- }
-
- /* Write second FAT copy */
- Status = VfatWriteFAT(FileHandle,
- BootSector.FATSectors32,
- &BootSector);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("VfatWriteFAT() failed with status 0x%.08x.\n", Status);
- NtClose(FileHandle);
- return Status;
- }
-
- Status = VfatWriteRootDirectory(FileHandle,
- &BootSector);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("VfatWriteRootDirectory() failed with status 0x%.08x\n", Status);
- NtClose(FileHandle);
- return Status;
+ /* FAT32 (volume is 512MB or larger) */
+ Status = Fat32Format (FileHandle,
+ &PartitionInfo,
+ &DiskGeometry,
+ Label,
+ QuickFormat,
+ ClusterSize,
+ Callback);
}
NtClose(FileHandle);
NTSTATUS
-VfatCleanup()
+VfatCleanup(VOID)
{
DPRINT("VfatCleanup()\n");
git://git.jankratochvil.net / reactos.git / blobdiff