wintun/api/api.h

/* SPDX-License-Identifier: GPL-2.0
 *
 * Copyright (C) 2018-2020 WireGuard LLC. All Rights Reserved.
 */

#pragma once

#include <Windows.h>

#ifndef __L
#    define __L(x) L##x
#endif
#ifndef _L
#    define _L(x) __L(x)
#endif

typedef _Return_type_success_(return == ERROR_SUCCESS) DWORD WINTUN_STATUS;

extern HINSTANCE ResourceModule;
extern SECURITY_ATTRIBUTES *SecurityAttributes;

/**
 * Returns the version of the Wintun driver and NDIS system currently loaded.
 *
 * @param DriverVersionMaj  Pointer to a DWORD to receive the Wintun driver major version number.
 *
 * @param DriverVersionMin  Pointer to a DWORD to receive the Wintun driver minor version number.
 *
 * @param NdisVersionMaj  Pointer to a DWORD to receive the NDIS major version number.
 *
 * @param NdisVersionMin  Pointer to a DWORD to receive the NDIS minor version number.
 *
 * @return ERROR_SUCCESS on success; Win32 error code otherwise.
 */
WINTUN_STATUS WINAPI
WintunGetVersion(
    _Out_ DWORD *DriverVersionMaj,
    _Out_ DWORD *DriverVersionMin,
    _Out_ DWORD *NdisVersionMaj,
    _Out_ DWORD *NdisVersionMin);