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#!/bin/bash
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#!/bin/bash
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# $Id: alcasar-bypass.sh 2454 2017-12-09 18:59:31Z tom.houdayer $
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# $Id: alcasar-bypass.sh 2688 2019-01-18 23:15:49Z lucas.echard $
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# alcasar-bypass.sh
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# alcasar-bypass.sh
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# by 3abtux and Rexy
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# by 3abtux and Rexy
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# This script is distributed under the Gnu General Public License (GPL)
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# This script is distributed under the Gnu General Public License (GPL)
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# activation / désactivation du contournement de l'authentification et du filtrage WEB
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# activation / désactivation du contournement de l'authentification et du filtrage WEB
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# enable / disable the bypass of authentication process and WEB filtering
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# enable / disable the bypass of authentication process and WEB filtering
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usage="Usage: alcasar-bypass.sh {--on or -on } | {--off or -off}"
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usage="Usage: alcasar-bypass.sh {--on or -on } | {--off or -off}"
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SED="/bin/sed -i"
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CONF_FILE="/usr/local/etc/alcasar.conf"
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CONF_FILE="/usr/local/etc/alcasar.conf"
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INTIF=`grep ^INTIF= $CONF_FILE|cut -d"=" -f2`				# INTernal InterFace
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INTIF=`grep ^INTIF= $CONF_FILE|cut -d"=" -f2`				# INTernal InterFace
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nb_args=$#
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nb_args=$#
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args=$1
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args=$1
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case $args in
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case $args in
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	-\? | -h* | --h*)
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	-\? | -h* | --h*)
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		echo "$usage"
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		echo "$usage"
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		exit 0
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		exit 0
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		;;
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		;;
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	--on | -on)
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	--on | -on)
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		/usr/local/bin/alcasar-logout.sh all
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		/usr/local/bin/alcasar-logout.sh all
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		/usr/bin/systemctl stop chilli
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		/usr/bin/systemctl stop chilli
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		cp -f /etc/sysconfig/network-scripts/bypass-ifcfg-$INTIF /etc/sysconfig/network-scripts/ifcfg-$INTIF
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		cp -f /etc/sysconfig/network-scripts/bypass-ifcfg-$INTIF /etc/sysconfig/network-scripts/ifcfg-$INTIF
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		ifup $INTIF
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		ifup $INTIF
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		sh /usr/local/bin/alcasar-iptables-bypass.sh
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		sh /usr/local/bin/alcasar-iptables-bypass.sh
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		DHCP=`grep ^DHCP= $CONF_FILE|cut -d"=" -f2`
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		DHCP=`grep ^DHCP= $CONF_FILE|cut -d"=" -f2`
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		if [ $DHCP != off ]
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		if [ $DHCP != off ]
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		then
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		then
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			$SED "/^#dhcp-range=/s/^#//" /etc/dnsmasq.conf # dnsmasq become the DHCP server
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			$SED "/^#dhcp-option=/s/^#//" /etc/dnsmasq.conf
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			$SED "/^#domain=/s/^#//" /etc/dnsmasq.conf
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			$SED "s?^no-dhcp-interface.*?#&?g" /etc/dnsmasq.conf
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			/usr/bin/systemctl restart dnsmasq
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			/usr/bin/systemctl start dhcpd
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		fi
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		fi
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		rm -f /etc/cron.d/alcasar-daemon-watchdog # don't restart daemons (specially coova)
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		rm -f /etc/cron.d/alcasar-daemon-watchdog # don't restart daemons (specially coova)
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		echo "ALCASAR est en mode 'bypass'"
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		echo "ALCASAR est en mode 'bypass'"
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		echo "ALCASAR is in 'bypass' mode"
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		echo "ALCASAR is in 'bypass' mode"
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		;;
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		;;
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	--off | -off)
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	--off | -off)
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		cp -f /etc/sysconfig/network-scripts/default-ifcfg-$INTIF /etc/sysconfig/network-scripts/ifcfg-$INTIF
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		cp -f /etc/sysconfig/network-scripts/default-ifcfg-$INTIF /etc/sysconfig/network-scripts/ifcfg-$INTIF
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		ifup $INTIF
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		ifup $INTIF
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		$SED "s?^dhcp-range=.*?#&?g" /etc/dnsmasq.conf # dnsmasq is no more the DHCP server (it's coova)
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		$SED "s?^dhcp-option=.*?#&?g" /etc/dnsmasq.conf
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		$SED "s?^domain=.*?#&?g" /etc/dnsmasq.conf
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		$SED "/^#no-dhcp-interface/s/^#//" /etc/dnsmasq.conf
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		/usr/bin/systemctl restart dnsmasq
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		/usr/bin/systemctl stop dhcpd
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		/usr/bin/systemctl start chilli
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		/usr/bin/systemctl start chilli
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		sh /usr/local/bin/alcasar-iptables.sh
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		sh /usr/local/bin/alcasar-iptables.sh
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		# activation of the "daemon-watchdog" every 18'
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		# activation of the "daemon-watchdog" every 18'
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		cat << EOF > /etc/cron.d/alcasar-daemon-watchdog
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		cat << EOF > /etc/cron.d/alcasar-daemon-watchdog
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# activation du "chien de garde" (daemon-watchdog) toutes les 18'
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# activation du "chien de garde" (daemon-watchdog) toutes les 18'