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#/bin/bash
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#/bin/bash
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# $Id: alcasar-conf.sh 860 2012-04-20 17:51:24Z richard $
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# $Id: alcasar-conf.sh 861 2012-04-21 20:18:48Z richard $
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# alcasar-conf.sh
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# alcasar-conf.sh
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# by Richard REY
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# by Richard REY
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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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	classe=$((PRIVATE_PREFIX/8)); classe_sup=`expr $classe + 1`; classe_sup_sup=`expr $classe + 2`		# classes de réseau (ex.: 2=classe B, 3=classe C)
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	classe=$((PRIVATE_PREFIX/8)); classe_sup=`expr $classe + 1`; classe_sup_sup=`expr $classe + 2`		# classes de réseau (ex.: 2=classe B, 3=classe C)
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	PRIVATE_NETWORK_SHORT=`echo $PRIVATE_NETWORK | cut -d"." -f1-$classe`.			# @ compatible hosts.allow et hosts.deny (ex.: 192.168.182.)
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	PRIVATE_NETWORK_SHORT=`echo $PRIVATE_NETWORK | cut -d"." -f1-$classe`.			# @ compatible hosts.allow et hosts.deny (ex.: 192.168.182.)
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	PRIVATE_BROADCAST=`/bin/ipcalc -b $PRIVATE_NETWORK_MASK | cut -d"=" -f2`		# @ broadcast réseau de consultation (ex.: 192.168.182.255)
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	PRIVATE_BROADCAST=`/bin/ipcalc -b $PRIVATE_NETWORK_MASK | cut -d"=" -f2`		# @ broadcast réseau de consultation (ex.: 192.168.182.255)
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	private_network_ending=`echo $PRIVATE_NETWORK | cut -d"." -f$classe_sup`		# dernier octet de l'@ de réseau
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	private_network_ending=`echo $PRIVATE_NETWORK | cut -d"." -f$classe_sup`		# dernier octet de l'@ de réseau
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	private_broadcast_ending=`echo $PRIVATE_BROADCAST | cut -d"." -f$classe_sup`		# dernier octet de l'@ de broadcast
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	private_broadcast_ending=`echo $PRIVATE_BROADCAST | cut -d"." -f$classe_sup`		# dernier octet de l'@ de broadcast
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	PRIVATE_FIRST_IP=`echo $PRIVATE_NETWORK | cut -d"." -f1-3`"."`expr $private_network_ending + 1`	# 1ère adresse de la plage dynamique (ex.: 192.168.182.129)
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	PRIVATE_FIRST_IP=`echo $PRIVATE_NETWORK | cut -d"." -f1-3`"."`expr $private_network_ending + 1`		# 1ère adresse de la plage de consultation (ex.: 192.168.182.1)
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	PRIVATE_LAST_IP=`echo $PRIVATE_BROADCAST | cut -d"." -f1-3`"."`expr $private_broadcast_ending - 1`	# dernière adresse de la plage de consultation (ex.: 192.168.182.254)
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	tmp_mask=`echo $PRIVATE_NETWORK_MASK|cut -d"/" -f2`; half_mask=`expr $tmp_mask + 1`	# masque du 1/2 réseau de consultation (ex.: 25)
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	PRIVATE_STAT_IP=$PRIVATE_NETWORK/$half_mask						# plage des adresses statiques (ex.: 192.168.182.0/25)
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	private_plage=`expr $private_broadcast_ending - $private_network_ending + 1`
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	private_half_plage=`expr $private_plage / 2`
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	private_dyn=`expr $private_half_plage + $private_network_ending`
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	private_dyn_ip_network=`echo $PRIVATE_NETWORK | cut -d"." -f1-$classe`"."$private_dyn"."`echo $PRIVATE_NETWORK | cut -d"." -f$classe_sup_sup-5`
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	PRIVATE_DYN_IP=`echo $private_dyn_ip_network | cut -d"." -f1-4`/$half_mask					# @ réseau (CIDR) de la plage des adresses dynamiques (ex.: 192.168.182.128/25)
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	private_dyn_ip_ending=`echo $private_dyn_ip_network | cut -d"." -f4`
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	PRIVATE_DYN_FIRST_IP=`echo $private_dyn_ip_network | cut -d"." -f1-3`"."`expr $private_dyn_ip_ending + 1`	# 1ère adresse de la plage dynamique (ex.: 192.168.182.129)
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	PRIVATE_LAST_IP=`echo $PRIVATE_BROADCAST | cut -d"." -f1-3`"."`expr $private_broadcast_ending - 1`		# dernière adresse de la plage dynamique (ex.: 192.168.182.254)
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	PRIVATE_DYN_LAST_IP=`echo $PRIVATE_BROADCAST | cut -d"." -f1-3`"."`expr $private_broadcast_ending - 1`		# dernière adresse de la plage dynamique (ex.: 192.168.182.254)
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}
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}
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usage="Usage: alcasar-conf.sh --create | --load | --apply"
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usage="Usage: alcasar-conf.sh --create | --load | --apply"
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nb_args=$#
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nb_args=$#
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args=$1
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args=$1
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			echo "GW=$PUBLIC_GATEWAY" >> $CONF_FILE
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			echo "GW=$PUBLIC_GATEWAY" >> $CONF_FILE
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			echo "DNS1=$DNS1" >> $CONF_FILE
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			echo "DNS1=$DNS1" >> $CONF_FILE
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			echo "DNS2=$DNS2" >> $CONF_FILE
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			echo "DNS2=$DNS2" >> $CONF_FILE
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			echo "PRIVATE_IP=$PRIVATE_IP/$PRIVATE_PREFIX" >> $CONF_FILE
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			echo "PRIVATE_IP=$PRIVATE_IP/$PRIVATE_PREFIX" >> $CONF_FILE
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			echo "DHCP=on" >> $CONF_FILE
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			echo "DHCP=on" >> $CONF_FILE
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			if [ -r /var/run/sshd.pid ]; then
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			if [ -r /var/run/sshd.pid ]; then
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				echo "SSH=on" >> $CONF_FILE
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				echo "SSH=on" >> $CONF_FILE
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			else
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			else
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				echo "SSH=off" >> $CONF_FILE
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				echo "SSH=off" >> $CONF_FILE
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			fi
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			fi
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		do
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		do
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			$SED "/^server=/d" $i
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			$SED "/^server=/d" $i
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			echo "server=$DNS1" >> $i
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			echo "server=$DNS1" >> $i
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			echo "server=$DNS2" >> $i
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			echo "server=$DNS2" >> $i
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		done
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		done
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		$SED "s?^dhcp-range=.*?dhcp-range=$PRIVATE_FIRST_IP,$PRIVATE_LAST_IP,$PRIVATE_NETMASK,12h?g" /etc/dnsmasq.conf
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		$SED "s?^dhcp-range=.*?dhcp-range=$PRIVATE_DYN_FIRST_IP,$PRIVATE_DYN_LAST_IP,$PRIVATE_NETMASK,12h?g" /etc/dnsmasq.conf
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		$SED "s?^dhcp-option=option:router.*?dhcp-option=option:router,$PRIVATE_IP?g" /etc/dnsmasq.conf
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		$SED "s?^dhcp-option=option:router.*?dhcp-option=option:router,$PRIVATE_IP?g" /etc/dnsmasq.conf
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# DG + BL
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# DG + BL
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		$SED "s?^filterip.*?filterip = $PRIVATE_IP?g" /etc/dansguardian/dansguardian.conf
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		$SED "s?^filterip.*?filterip = $PRIVATE_IP?g" /etc/dansguardian/dansguardian.conf
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# Watchdog
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# Watchdog
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		$SED "s?^PRIVATE_IP=.*?PRIVATE_IP=\"$PRIVATE_IP\"?g" $DIR_BIN/alcasar-watchdog.sh
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		$SED "s?^PRIVATE_IP=.*?PRIVATE_IP=\"$PRIVATE_IP\"?g" $DIR_BIN/alcasar-watchdog.sh