Generic WDM driver source

#include <ntddk.h>

CONST WCHAR g_wzDeviceName[] = L"\\Device\\DriverDeviceName";
CONST WCHAR g_wzDosDeviceName[] = L"\\DosDevices\\DriverDosDeviceName";
UNICODE_STRING g_usDeviceName = { 0 };
UNICODE_STRING g_usDeviceLink = { 0 };
PDEVICE_OBJECT g_pDevObj = NULL;

VOID DriverUnload(
	IN PDRIVER_OBJECT DriverObject
);

NTSTATUS DispatchNotImplemented(
	IN PDEVICE_OBJECT	DeviceObject,
	IN PIRP				Irp
);

NTSTATUS DeviceControl(
	IN PDEVICE_OBJECT	DeviceObject,
	IN PIRP				Irp
);

NTSTATUS DriverENtry(
	IN PDRIVER_OBJECT	DriverObject,
	IN PUNICODE_STRING	RegistryPath
) 
{
	UNREFERENCED_PARAMETER(RegistryPath);
	ULONG i = 0;
	NTSTATUS status = STATUS_INTERNAL_ERROR;

	KdPrint(("HypervisorExplorer DriverEntry called\n"));
	RtlInitUnicodeString(&g_usDeviceName, g_wzDeviceName);

	status = IoCreateDevice(
		DriverObject,
		0,
		&g_usDeviceName,
		FILE_DEVICE_UNKNOWN,
		0,
		FALSE,
		&g_pDevObj
	);

	if (!NT_SUCCESS(status))
	{
		KdPrint(("Failed to create device object (0x%08X)\n", status));

		// Check if the device object was actually created
		if (g_pDevObj != NULL)
		{
			IoDeleteDevice(g_pDevObj);
		}

		return status;
	}

	RtlInitUnicodeString(&g_usDeviceLink, g_wzDosDeviceName);
	status = IoCreateSymbolicLink(&g_usDeviceLink, &g_usDeviceName);

	if (!NT_SUCCESS(status))
	{
		KdPrint(("Failed to create symbolic link (0x%08X)\n", status));
		IoDeleteDevice(g_pDevObj);
		return status;
	}

	for (i = 0; i <= IRP_MJ_MAXIMUM_FUNCTION; i++)
	{
		DriverObject->MajorFunction[i] = DispatchNotImplemented;
	}

}

NTSTATUS DispatchNotImplemented(
	IN PDEVICE_OBJECT	DeviceObject,
	IN PIRP				Irp
)
{
	UNREFERENCED_PARAMETER(DeviceObject);

	Irp->IoStatus.Information = 0;
	Irp->IoStatus.Status = STATUS_SUCCESS;
	IoCompleteRequest(Irp, IO_NO_INCREMENT);
	return STATUS_SUCCESS;
}

VOID DriverUnload(
	IN PDRIVER_OBJECT DriverObject
)
{
	UNICODE_STRING usDeviceLink = { 0 };
	RtlInitUnicodeString(&usDeviceLink, g_wzDosDeviceName);

	// delete symbolic link
	IoDeleteSymbolicLink(&usDeviceLink);

	// delete device object
	IoDeleteDevice(DriverObject->DeviceObject);
}

NTSTATUS DeviceControl(
	IN PDEVICE_OBJECT	DeviceObject,
	IN PIRP				Irp
)
{
	UNREFERENCED_PARAMETER(DeviceObject);

	PIO_STACK_LOCATION pStack = IoGetCurrentIrpStackLocation(Irp);
	NTSTATUS status = STATUS_INTERNAL_ERROR;
	ULONG ioctl = pStack->Parameters.DeviceIoControl.IoControlCode;

	switch (ioctl)
	{
		case 
	}

}