vfatxlib.c

Go to the documentation of this file.

/*
 * 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"

#include <ndk/obfuncs.h>

#define NDEBUG
#include <debug.h>

BOOLEAN
NTAPI
VfatxFormat(
    IN PUNICODE_STRING DriveRoot,
    IN PFMIFSCALLBACK Callback,
    IN BOOLEAN QuickFormat,
    IN BOOLEAN BackwardCompatible,
    IN MEDIA_TYPE MediaType,
    IN PUNICODE_STRING Label,
    IN ULONG ClusterSize)
{
    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);

    // FIXME:
    UNREFERENCED_PARAMETER(MediaType);

    if (BackwardCompatible)
    {
        DPRINT1("BackwardCompatible == TRUE is unsupported!\n");
        return FALSE;
    }

    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 FALSE;
    }

    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 FALSE;
    }

    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 FALSE;
        }
    }
    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);

    DPRINT("VfatxFormat() done. Status 0x%08x\n", Status);
    return NT_SUCCESS(Status);
}

BOOLEAN
NTAPI
VfatxChkdsk(
    IN PUNICODE_STRING DriveRoot,
    IN PFMIFSCALLBACK Callback,
    IN BOOLEAN FixErrors,
    IN BOOLEAN Verbose,
    IN BOOLEAN CheckOnlyIfDirty,
    IN BOOLEAN ScanDrive,
    IN PVOID pUnknown1,
    IN PVOID pUnknown2,
    IN PVOID pUnknown3,
    IN PVOID pUnknown4,
    IN PULONG ExitStatus)
{
    UNIMPLEMENTED;
    *ExitStatus = (ULONG)STATUS_SUCCESS;
    return TRUE;
}

VOID
VfatxUpdateProgress(IN PFORMAT_CONTEXT Context,
                    IN ULONG Increment)
{
    ULONG NewPercent;

    Context->CurrentSectorCount += (ULONGLONG)Increment;

    NewPercent = (Context->CurrentSectorCount * 100ULL) / Context->TotalSectorCount;

    if (NewPercent > Context->Percent)
    {
        Context->Percent = NewPercent;
        if (Context->Callback != NULL)
        {
            Context->Callback(PROGRESS, 0, &Context->Percent);
        }
    }
}

/* EOF */