** Copyright (C) 2001-2025 Zabbix SIA
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
"golang.org/x/sys/windows"
hIphlp = mustLoadLibrary("iphlpapi.dll")
getIfTable2 = hIphlp.mustGetProcAddress("GetIfTable2")
freeMibTable = hIphlp.mustGetProcAddress("FreeMibTable")
getIpAddrTable = hIphlp.mustGetProcAddress("GetIpAddrTable")
getTcpTable = hIphlp.mustGetProcAddress("GetTcpTable")
func GetIfTable2() (table *MIB_IF_TABLE2, err error) {
ret, _, syserr := syscall.Syscall(getIfTable2, 1, uintptr(unsafe.Pointer(&table)), 0, 0)
if ret != windows.NO_ERROR {
func FreeMibTable(table *MIB_IF_TABLE2) {
_, _, _ = syscall.Syscall(freeMibTable, 1, uintptr(unsafe.Pointer(table)), 0, 0)
// GetIpAddrTable calls win32 GetIpAddrTable function. Check if the returned size was less or equal to input size
// to determine if the buffer was large enough for the address table.