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Reverted parts of the last changes. Vfat must always check the partition type if it is available.

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svn path=/trunk/; revision=13032
This commit is contained in:
Hartmut Birr 2005-01-13 20:57:30 +00:00
parent 3360f1a1ae
commit 1edc02642e
1 changed files with 37 additions and 2 deletions
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39
reactos/drivers/fs/vfat/fsctl.c
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@ -86,6 +86,35 @@ VfatHasFileSystem(PDEVICE_OBJECT DeviceToMount,
return Status;
}
PartitionInfoIsValid = TRUE;
DPRINT("Partition Information:\n");
DPRINT("StartingOffset %u\n", PartitionInfo.StartingOffset.QuadPart / 512);
DPRINT("PartitionLength %u\n", PartitionInfo.PartitionLength.QuadPart / 512);
DPRINT("HiddenSectors %u\n", PartitionInfo.HiddenSectors);
DPRINT("PartitionNumber %u\n", PartitionInfo.PartitionNumber);
DPRINT("PartitionType %u\n", PartitionInfo.PartitionType);
DPRINT("BootIndicator %u\n", PartitionInfo.BootIndicator);
DPRINT("RecognizedPartition %u\n", PartitionInfo.RecognizedPartition);
DPRINT("RewritePartition %u\n", PartitionInfo.RewritePartition);
if (PartitionInfo.PartitionType)
{
if (PartitionInfo.PartitionType == PARTITION_FAT_12 ||
PartitionInfo.PartitionType == PARTITION_FAT_16 ||
PartitionInfo.PartitionType == PARTITION_HUGE ||
PartitionInfo.PartitionType == PARTITION_FAT32 ||
PartitionInfo.PartitionType == PARTITION_FAT32_XINT13 ||
PartitionInfo.PartitionType == PARTITION_XINT13)
{
*RecognizedFS = TRUE;
}
}
else if (DiskGeometry.MediaType == RemovableMedia &&
PartitionInfo.PartitionNumber > 0 &&
PartitionInfo.StartingOffset.QuadPart == 0LL &&
PartitionInfo.PartitionLength.QuadPart > 0LL)
{
/* This is possible a removable media formated as super floppy */
*RecognizedFS = TRUE;
}
}
else if (DiskGeometry.MediaType == Unknown)
{
@ -97,6 +126,14 @@ VfatHasFileSystem(PDEVICE_OBJECT DeviceToMount,
*RecognizedFS = TRUE;
DiskGeometry.BytesPerSector = 512;
}
else
{
*RecognizedFS = TRUE;
}
if (*RecognizedFS == FALSE)
{
return STATUS_SUCCESS;
}
Boot = ExAllocatePool(NonPagedPool, DiskGeometry.BytesPerSector);
if (Boot == NULL)
@ -110,8 +147,6 @@ VfatHasFileSystem(PDEVICE_OBJECT DeviceToMount,
Status = VfatReadDisk(DeviceToMount, &Offset, DiskGeometry.BytesPerSector, (PUCHAR) Boot, FALSE);
if (NT_SUCCESS(Status))
{
*RecognizedFS = TRUE;
if (Boot->Signatur1 != 0xaa55)
{
*RecognizedFS = FALSE;