reactos/lib/fslib/vfatxlib/vfatxlib.c
Timo Kreuzer 9ea495ba33 Create a branch for header work.
svn path=/branches/header-work/; revision=45691
2010-02-26 22:57:55 +00:00

178 lines
4.7 KiB
C

/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS VFATx filesystem library
* FILE: vfatxlib.c
* PURPOSE: Main API
* PROGRAMMERS:
* REVISIONS:
* CSH 05/04-2003 Created
*/
#include "vfatxlib.h"
#define NDEBUG
#include <debug.h>
NTSTATUS NTAPI
VfatxFormat (PUNICODE_STRING DriveRoot,
FMIFS_MEDIA_FLAG MediaFlag,
PUNICODE_STRING Label,
BOOLEAN QuickFormat,
ULONG ClusterSize,
PFMIFSCALLBACK Callback)
{
OBJECT_ATTRIBUTES ObjectAttributes;
DISK_GEOMETRY DiskGeometry;
IO_STATUS_BLOCK Iosb;
HANDLE FileHandle;
PARTITION_INFORMATION PartitionInfo;
FORMAT_CONTEXT Context;
NTSTATUS Status;
DPRINT("VfatxFormat(DriveRoot '%wZ')\n", DriveRoot);
Context.TotalSectorCount = 0;
Context.CurrentSectorCount = 0;
Context.Callback = Callback;
Context.Success = FALSE;
Context.Percent = 0;
InitializeObjectAttributes(&ObjectAttributes,
DriveRoot,
0,
NULL,
NULL);
Status = NtOpenFile(&FileHandle,
FILE_GENERIC_READ | FILE_GENERIC_WRITE,
&ObjectAttributes,
&Iosb,
FILE_SHARE_READ,
FILE_SYNCHRONOUS_IO_ALERT);
if (!NT_SUCCESS(Status))
{
DPRINT("NtOpenFile() failed with status 0x%.08x\n", Status);
return Status;
}
Status = NtDeviceIoControlFile(FileHandle,
NULL,
NULL,
NULL,
&Iosb,
IOCTL_DISK_GET_DRIVE_GEOMETRY,
NULL,
0,
&DiskGeometry,
sizeof(DISK_GEOMETRY));
if (!NT_SUCCESS(Status))
{
DPRINT("IOCTL_DISK_GET_DRIVE_GEOMETRY failed with status 0x%.08x\n", Status);
NtClose(FileHandle);
return Status;
}
if (DiskGeometry.MediaType == FixedMedia)
{
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 *
(ULONGLONG)DiskGeometry.BytesPerSector);
Status = NtDeviceIoControlFile(FileHandle,
NULL,
NULL,
NULL,
&Iosb,
IOCTL_DISK_GET_PARTITION_INFO,
NULL,
0,
&PartitionInfo,
sizeof(PARTITION_INFORMATION));
if (!NT_SUCCESS(Status))
{
DPRINT("IOCTL_DISK_GET_PARTITION_INFO failed with status 0x%.08x\n", Status);
NtClose(FileHandle);
return Status;
}
/*
* FIXME: This is a hack!
* Partitioning software MUST set the correct number of hidden sectors!
*/
PartitionInfo.HiddenSectors = DiskGeometry.SectorsPerTrack;
}
else
{
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 (Callback != NULL)
{
Context.Percent = 0;
Callback (PROGRESS, 0, (PVOID)&Context.Percent);
}
Status = FatxFormat (FileHandle,
&PartitionInfo,
&DiskGeometry,
QuickFormat,
&Context);
NtClose(FileHandle);
if (Callback != NULL)
{
Context.Success = (BOOLEAN)(NT_SUCCESS(Status));
Callback (DONE, 0, (PVOID)&Context.Success);
}
DPRINT("VfatxFormat() done. Status 0x%.08x\n", Status);
return Status;
}
VOID
VfatxUpdateProgress (PFORMAT_CONTEXT Context,
ULONG Increment)
{
ULONG NewPercent;
Context->CurrentSectorCount += (ULONGLONG)Increment;
NewPercent = (Context->CurrentSectorCount * 100ULL) / Context->TotalSectorCount;
if (NewPercent > Context->Percent)
{
Context->Percent = NewPercent;
Context->Callback (PROGRESS, 0, &Context->Percent);
}
}
/* EOF */