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Implemented IOCTL_DISK_IS_WRITABLE.

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Reread disk geometry only if disk is removable.

svn path=/trunk/; revision=5229
This commit is contained in:
Eric Kohl 2003-07-23 18:45:08 +00:00
parent 0af61c4ff3
commit b3503c4a97
1 changed files with 66 additions and 20 deletions
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86
reactos/drivers/storage/disk/disk.c
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@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: disk.c,v 1.31 2003/06/24 12:38:00 ekohl Exp $
/* $Id: disk.c,v 1.32 2003/07/23 18:45:08 ekohl Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -37,7 +37,8 @@
#define VERSION "0.0.1"
#define SCSI_DISK_TIMEOUT 10 /* Default timeout: 10 seconds */
#define SCSI_DISK_TIMEOUT 10 /* Default timeout: 10 seconds */
#define MODE_DATA_SIZE 192
typedef struct _DISK_DATA
@ -842,30 +843,37 @@ DiskClassDeviceControl(IN PDEVICE_OBJECT DeviceObject,
if (IrpStack->Parameters.DeviceIoControl.OutputBufferLength < sizeof(DISK_GEOMETRY))
{
Status = STATUS_INVALID_PARAMETER;
break;
}
else
{
PDISK_GEOMETRY Geometry;
if (DeviceExtension->DiskGeometry == NULL)
{
DPRINT("No disk geometry available!\n");
DeviceExtension->DiskGeometry = ExAllocatePool(NonPagedPool,
sizeof(DISK_GEOMETRY));
}
if (DeviceExtension->DiskGeometry == NULL)
{
DPRINT("No disk geometry available!\n");
DeviceExtension->DiskGeometry = ExAllocatePool(NonPagedPool,
sizeof(DISK_GEOMETRY));
}
if (DeviceObject->Characteristics & FILE_REMOVABLE_MEDIA)
{
Status = ScsiClassReadDriveCapacity(DeviceObject);
DPRINT("ScsiClassReadDriveCapacity() returned (Status %lx)\n", Status);
if (NT_SUCCESS(Status))
if (!NT_SUCCESS(Status))
{
Geometry = (PDISK_GEOMETRY)Irp->AssociatedIrp.SystemBuffer;
RtlMoveMemory(Geometry,
DeviceExtension->DiskGeometry,
sizeof(DISK_GEOMETRY));
Status = STATUS_SUCCESS;
Information = sizeof(DISK_GEOMETRY);
/* Drive is not ready */
DiskData->DriveNotReady = FALSE;
break;
}
/* Drive is ready */
DiskData->DriveNotReady = FALSE;
}
RtlMoveMemory(Irp->AssociatedIrp.SystemBuffer,
DeviceExtension->DiskGeometry,
sizeof(DISK_GEOMETRY));
Status = STATUS_SUCCESS;
Information = sizeof(DISK_GEOMETRY);
break;
case IOCTL_DISK_GET_PARTITION_INFO:
@ -1009,10 +1017,48 @@ DiskClassDeviceControl(IN PDEVICE_OBJECT DeviceObject,
}
break;
case IOCTL_DISK_IS_WRITABLE:
{
PMODE_PARAMETER_HEADER ModeData;
ULONG Length;
ModeData = ExAllocatePool (NonPagedPool,
MODE_DATA_SIZE);
if (ModeData == NULL)
{
Status = STATUS_INSUFFICIENT_RESOURCES;
break;
}
RtlZeroMemory (ModeData,
MODE_DATA_SIZE);
Length = ScsiClassModeSense (DeviceObject,
(PVOID)ModeData,
MODE_DATA_SIZE,
MODE_SENSE_RETURN_ALL);
if (Length < sizeof(MODE_PARAMETER_HEADER))
{
/* FIXME: Retry */
Status = STATUS_IO_DEVICE_ERROR;
ExFreePool (ModeData);
break;
}
if (ModeData->DeviceSpecificParameter & MODE_DSP_WRITE_PROTECT)
{
Status = STATUS_MEDIA_WRITE_PROTECTED;
}
else
{
Status = STATUS_SUCCESS;
}
ExFreePool (ModeData);
}
break;
case IOCTL_DISK_VERIFY:
case IOCTL_DISK_FORMAT_TRACKS:
case IOCTL_DISK_PERFORMANCE:
case IOCTL_DISK_IS_WRITABLE:
case IOCTL_DISK_LOGGING:
case IOCTL_DISK_FORMAT_TRACKS_EX:
case IOCTL_DISK_HISTOGRAM_STRUCTURE: