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#!/bin/bash
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#!/bin/bash
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# $Id: alcasar-watchdog.sh 784 2011-12-18 14:33:56Z richard $
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# $Id: alcasar-watchdog.sh 786 2012-01-02 22:50:31Z richard $
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# alcasar-watchdog.sh
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# alcasar-watchdog.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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# - PCs are quiet
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# - PCs are quiet
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# - MAC address are in used by other systems (usurped)
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# - MAC address are in used by other systems (usurped)
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EXTIF="eth0"
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EXTIF="eth0"
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INTIF="eth1"
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INTIF="eth1"
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macallowed_file="/usr/local/etc/alcasar-macallowed"
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conf_file="/usr/local/etc/alcasar.conf"
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private_ip_mask=`grep PRIVATE_IP= $conf_file|cut -d"=" -f2`
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PRIVATE_IP="192.168.182.1"
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private_ip_mask=${private_ip_mask:=192.168.182.1/24}
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PRIVATE_IP=`echo $private_ip_mask | cut -d"/" -f1`			# ALCASAR LAN IP address
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tmp_file="/tmp/watchdog.txt"
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tmp_file="/tmp/watchdog.txt"
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DIR_WEB="/var/www/html"
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DIR_WEB="/var/www/html"
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Index_Page="$DIR_WEB/index.php"
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Index_Page="$DIR_WEB/index.php"
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OLDIFS=$IFS
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OLDIFS=$IFS
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IFS=$'\n'
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IFS=$'\n'
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				noresponse_ip=`echo $noresponse | cut -d" " -f1`
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				noresponse_ip=`echo $noresponse | cut -d" " -f1`
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				noresponse_mac=`echo $noresponse | cut -d" " -f2`
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				noresponse_mac=`echo $noresponse | cut -d" " -f2`
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				arp_reply=`/usr/sbin/arping -b -I$INTIF -s$PRIVATE_IP -c1 -w4 $noresponse_ip|grep response|cut -d" " -f2`
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				arp_reply=`/usr/sbin/arping -b -I$INTIF -s$PRIVATE_IP -c1 -w4 $noresponse_ip|grep response|cut -d" " -f2`
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				if [[ $(expr $arp_reply) -eq 0 ]]
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				if [[ $(expr $arp_reply) -eq 0 ]]
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	       				then
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	       				then
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					mac_allowed=`cat $macallowed_file |grep $noresponse_mac | wc -l`
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					if [ $mac_allowed -eq 0 ]
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						then
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					logger "alcasar-watchdog $noresponse_ip ($noresponse_mac) can't be contact. Alcasar disconnects the user."
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						logger "alcasar-watchdog $noresponse_ip ($noresponse_mac) can't be contact. Alcasar disconnects the user."
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					/usr/sbin/chilli_query logout $noresponse_mac
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						/usr/sbin/chilli_query logout $noresponse_mac
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					else
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						logger "alcasar-watchdog $noresponse_ip ($noresponse_mac - macallowed) can't be contact. Alcasar release the IP address"
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						/usr/sbin/chilli_query dhcp-release $noresponse_mac
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					fi
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				fi
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				fi
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			done
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			done
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			rm $tmp_file
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			rm $tmp_file
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		fi
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		fi
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# on traite chaque équipements connus de chilli
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# on traite chaque équipements connus de chilli