VOID
FmDeviceCleanup(
WDFDEVICE Device
)
/*++
Routine Description:
This event is called when the device object is destroyed.
Cleanup any associated data.
Arguments:
Return Value:
VOID
--*/
{
PFM_DEVICE_DATA fmData;
PAGED_CODE();
fmData = FmDeviceDataGet(Device);
if (fmData->Flags & REG_VALUE_CREATED_FLAG) {
RtlDeleteRegistryValue(
RTL_REGISTRY_DEVICEMAP,
L"SERIALCOMM",
fmData->PdoName.Buffer
);
}
}
BOOLEAN HidePort(IN PC0C_FDOPORT_EXTENSION pDevExt)
{
BOOLEAN res;
NTSTATUS status;
if (!pDevExt->shown)
return TRUE;
res = TRUE;
if ((pDevExt->shown & C0C_SHOW_WMIREG) != 0) {
status = IoWMIRegistrationControl(pDevExt->pDevObj, WMIREG_ACTION_DEREGISTER);
pDevExt->shown &= ~C0C_SHOW_WMIREG;
if (NT_SUCCESS(status)) {
Trace0((PC0C_COMMON_EXTENSION)pDevExt, L"Hidden WMIREG");
} else {
res = FALSE;
Trace0((PC0C_COMMON_EXTENSION)pDevExt, L"HidePort IoWMIRegistrationControl FAIL");
}
}
if (pDevExt->symbolicLinkName.Buffer && (pDevExt->shown & C0C_SHOW_INTERFACE) != 0) {
status = IoSetDeviceInterfaceState(&pDevExt->symbolicLinkName, FALSE);
pDevExt->shown &= ~C0C_SHOW_INTERFACE;
if (NT_SUCCESS(status)) {
Trace0((PC0C_COMMON_EXTENSION)pDevExt, L"Hidden INTERFACE");
} else {
res = FALSE;
Trace0((PC0C_COMMON_EXTENSION)pDevExt, L"HidePort IoSetDeviceInterfaceState FAIL");
}
}
if (pDevExt->ntDeviceName.Buffer && (pDevExt->shown & C0C_SHOW_DEVICEMAP) != 0) {
status = RtlDeleteRegistryValue(RTL_REGISTRY_DEVICEMAP, C0C_SERIAL_DEVICEMAP,
pDevExt->ntDeviceName.Buffer);
pDevExt->shown &= ~C0C_SHOW_DEVICEMAP;
if (NT_SUCCESS(status)) {
Trace0((PC0C_COMMON_EXTENSION)pDevExt, L"Hidden DEVICEMAP");
} else {
res = FALSE;
Trace0((PC0C_COMMON_EXTENSION)pDevExt, L"HidePort RtlDeleteRegistryValue " C0C_SERIAL_DEVICEMAP L" FAIL");
}
}
if (pDevExt->win32DeviceName.Buffer && (pDevExt->shown & C0C_SHOW_SYMLINK) != 0) {
status = IoDeleteSymbolicLink(&pDevExt->win32DeviceName);
pDevExt->shown &= ~C0C_SHOW_SYMLINK;
if (NT_SUCCESS(status)) {
Trace0((PC0C_COMMON_EXTENSION)pDevExt, L"Hidden SYMLINK");
} else {
res = FALSE;
Trace0((PC0C_COMMON_EXTENSION)pDevExt, L"HidePort IoDeleteSymbolicLink FAIL");
}
}
if ((pDevExt->shown & C0C_SHOW_PORTNAME) != 0)
res = (HidePortName(pDevExt) && res);
pDevExt->shown &= ~C0C_SHOW_SHOWN;
Trace00((PC0C_COMMON_EXTENSION)pDevExt, L"HidePort - ", res ? L"OK" : L"FAIL");
return res;
}