#!/bin/sh # # Copyright (C) 2018-2020 VyOS maintainers and contributors # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License version 2 or later as # published by the Free Software Foundation. # # 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, see <http://www.gnu.org/licenses/>. if [ ! -d /sys/class/ieee80211 ]; then echo No IEEE 802.11 physical interfaces detected exit 1 fi if [ ! -e /sys/class/ieee80211/$1 ]; then echo Device interface "$1" does not exist exit 1 fi