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#!/bin/bash
#
#AutoRestartNM
#
# Copyright (c) 2013 gee
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU Library General Public License as published
# by the Free Software Foundation; either version 2, 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, see <http://www.gnu.org/licenses/>.
usage ()
{
echo "AutoRestartNM 0.2 (C) 2013-2015 gee"
echo "Usage: restartNM [ADDRESS] (SLEEPTIME) (RETRIES)"
echo ""
echo "Mandatory argument:"
echo "ADDRESS The address you wish to ping to know if the your network is working as expected"
echo ""
echo "Optional arguments:"
echo "SLEEPTIME The time the script will sleep after failing the ping before retrying to see if it was just a glitch (default: 30s)"
echo "RETRIES The number of times you wish to retry pinging before restarting Network Manager (default: 1)"
}
ADDR=$1
SLEEPTIME=$2
RETRIES=$3
if [ -z "$ADDR" ]
then
usage
exit 1
fi
if [ -z "$SLEEPTIME" ]
then
SLEEPTIME=30s
fi
if [ -z "$RETRIES" ]
then
RETRIES=1
fi
LOOPTIMES=0
SYSNAME="autorestartNM"
while [ true ]
do
echo $FIRST
ping -c 4 $ADDR -q
PING=$?
echo $PING
if [ $PING -eq 0 ]
then
exit 0
elif [ $LOOPTIMES -ne $RETRIES ]
then
systemd-cat -t "$SYSNAME" echo "First ping failed, going to sleep for $SLEEPTIME."
sleep $SLEEPTIME
let LOOPTIMES++
else
systemd-cat -t "$SYSNAME" echo "Second ping failed, restarting the NM service."
systemctl restart NetworkManager.service
sleep $SLEEPTIME
exit 0
fi
done
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