NTSTATUS CUsbDkFilterDevice::Create(PWDFDEVICE_INIT DevInit)
{
CUsbDkFilterDeviceInit DeviceInit(DevInit);
TraceEvents(TRACE_LEVEL_INFORMATION, TRACE_FILTERDEVICE, "%!FUNC! Entry");
auto status = DeviceInit.Configure(GetInstanceNumber());
if (!NT_SUCCESS(status))
{
TraceEvents(TRACE_LEVEL_INFORMATION, TRACE_FILTERDEVICE, "%!FUNC! Failed to create device init");
return status;
}
WDF_OBJECT_ATTRIBUTES attr;
WDF_OBJECT_ATTRIBUTES_INIT_CONTEXT_TYPE(&attr, USBDK_FILTER_DEVICE_EXTENSION);
attr.EvtCleanupCallback = CUsbDkFilterDevice::ContextCleanup;
status = CWdfDevice::Create(DeviceInit, attr);
if (!NT_SUCCESS(status))
{
TraceEvents(TRACE_LEVEL_INFORMATION, TRACE_FILTERDEVICE, "%!FUNC! Failed to create device");
return status;
}
auto deviceContext = UsbDkFilterGetContext(m_Device);
deviceContext->UsbDkFilter = this;
return STATUS_SUCCESS;
}
void CUsbDkFilterDevice::ContextCleanup(_In_ WDFOBJECT DeviceObject)
{
PAGED_CODE();
TraceEvents(TRACE_LEVEL_INFORMATION, TRACE_FILTERDEVICE, "%!FUNC! Entry");
auto deviceContext = UsbDkFilterGetContext(DeviceObject);
deviceContext->UsbDkFilter->Release();
}
static CUsbDkFilterDevice::CStrategist &Strategy(WDFDEVICE Device)
{ return UsbDkFilterGetContext(Device)->UsbDkFilter->m_Strategy; }
void CUsbDkRedirectorQueueConfig::SetCallbacks(WDF_IO_QUEUE_CONFIG &QueueConfig)
{
QueueConfig.EvtIoDeviceControl = [](WDFQUEUE Q, WDFREQUEST R, size_t OL, size_t IL, ULONG CTL)
{ UsbDkFilterGetContext(WdfIoQueueGetDevice(Q))->UsbDkFilter->m_Strategy->IoDeviceControlConfig(R, OL, IL, CTL); };
}
