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#!/bin/bash
# $Id: alcasar-daemon.sh 2864 2020-10-18 09:06:17Z rexy $

# alcasar-daemon.sh
# by Franck BOUIJOUX & Rexy
# This script is distributed under the Gnu General Public License (GPL)
# Watchdog of Services
# See /etc/cron.d/alcasar-daemon-watchdog for config the time

conf_file="/usr/local/etc/alcasar.conf"
SSH=`grep ^SSH= $conf_file|cut -d"=" -f2`                               # sshd active (on/off)
SSH=${SSH:=off}
SMS=`grep ^SMS= $conf_file|cut -d"=" -f2`                               # SMS active (on/off)
SMS=${SMS:=off}
LDAP=`grep ^LDAP= $conf_file|cut -d"=" -f2`                             # ldap active (on/off)
LDAP=${LDAP:=off}
INTIF=`grep ^INTIF= $conf_file|cut -d"=" -f2`                           # INTIF name
EXTIF=`grep ^EXTIF= $conf_file|cut -d"=" -f2`                           # EXTIF name
SERVICES="mysqld lighttpd php-fpm ntpd unbound unbound-blacklist unbound-whitelist dnsmasq-whitelist unbound-blackhole radiusd nfcapd e2guardian clamav-daemon clamav-freshclam ulogd-ssh ulogd-traceability ulogd-ext-access chilli fail2ban sshd vnstat gammu-smsd"
nb_available_srv=`echo $SERVICES|wc -w`

function ServiceTest () {
        service=$1
        if [ $(/usr/bin/systemctl is-active $service) != "active" ]; then
                logger -t alcasar-daemon -i "$service is inactive. Activation attempt"
                echo "the $service service is disabled! trying to start it..."
                /usr/bin/systemctl start $service.service
        else
                nb_srv=$((nb_srv+1))
        fi
}

for NIC in $EXTIF $INTIF
do
        if [ `/usr/sbin/ip a show $NIC|grep DOWN|wc -l` -eq "1" ]
        then
                echo "The network interface card '$NIC' is down! Try to enable it"
                /usr/sbin/ifup $NIC
        fi
done

nb_srv=0
for service in $SERVICES; do
        if [ $service == 'sshd' ]; then
                if [ $SSH != "ON" ] && [ $SSH != "on" ] && [ $SSH != "On" ]; then
                        nb_available_srv=$((nb_available_srv-1))
                        continue
                fi
        elif [ $service == 'gammu-smsd' ]; then
                if [ $SMS != "ON" ] && [ $SMS != "on" ] && [ $SMS != "On" ]; then
                        nb_available_srv=$((nb_available_srv-1))
                        continue
                fi
        fi
        ServiceTest $service
done

if [ $nb_available_srv -ne $nb_srv ]
then
        echo "Restart this script to know if all is ok"
else
        echo "$nb_srv services needed by ALCASAR are started."
fi

if [ `cat /proc/modules|grep -c ^ipt_NETFLOW` == 0 ]
then
        logger -t alcasar-daemon -i "ipt_netflow is inactive."
        echo "The Log system is disabled! try to know why (modprobe ipt_NETFLOW)"
else
        echo "The Log system is active"
fi
if [ ! -e /etc/raddb/mods-enabled/ldap ]
then
        if [ $LDAP == "ON" ] || [ $LDAP == "on" ] || [ $LDAP == "On" ]
        then
        echo "Enable LDAP..."
        /usr/local/bin/alcasar-ldap.sh -on
        fi
fi