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[DISK]

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Implemented support for IOCTL_DISK_GET_LENGTH_INFO

svn path=/trunk/; revision=49369
This commit is contained in:
Pierre Schweitzer 2010-10-31 08:13:33 +00:00
parent 0fefcc022b
commit 3b08424abb
1 changed files with 47 additions and 0 deletions
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47
reactos/drivers/storage/class/disk/disk.c
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@ -2808,6 +2808,53 @@ Return Value:
// Fall through and let the class driver process the request.
//
case IOCTL_DISK_GET_LENGTH_INFO:
//
// Validate buffer length.
//
if (irpStack->Parameters.DeviceIoControl.OutputBufferLength <
sizeof(GET_LENGTH_INFORMATION)) {
status = STATUS_BUFFER_TOO_SMALL;
} else {
PGET_LENGTH_INFORMATION lengthInformation = Irp->AssociatedIrp.SystemBuffer;
//
// Update the geometry in case it has changed.
//
status = UpdateRemovableGeometry (DeviceObject, Irp);
if (!NT_SUCCESS(status)) {
//
// Note the drive is not ready.
//
diskData->DriveNotReady = TRUE;
break;
}
//
// Note the drive is now ready.
//
diskData->DriveNotReady = FALSE;
//
// Output data, and return
//
lengthInformation->Length.QuadPart = deviceExtension->PartitionLength.QuadPart;
status = STATUS_SUCCESS;
Irp->IoStatus.Information = sizeof(GET_LENGTH_INFORMATION);
}
break;
default:
//