Subversion Repositories ALCASAR

#!/bin/bash

# alcasar-iot_capture.sh

# by Guillaume Gellusseau, Dorian Lemoine & REXY

# This script is distributed under the Gnu General Public License (GPL)

# Ce script lance une capture de flux réseau en fonction d'une adresse IP source ($1) 

# This script performs a network flow capture based on source ip address ($1) 

CONF_FILE="/usr/local/etc/alcasar.conf"

INTIF=`grep ^INTIF= $CONF_FILE|cut -d"=" -f2`

PRIVATE_IP=$(grep ^PRIVATE_IP= $CONF_FILE | cut -d'=' -f2 | cut -d'/' -f1)

function info

{

	_PID=$(ps -ef | grep tcpdump | grep $1 | awk {'print $2'})

	if [[ -n $_PID ]]

	then

		echo "CaptureON"

	else

		echo "CaptureOFF"

	fi 

}

function kill

{

	_PID=$(ps -ef | grep tcpdump | grep $1 | awk {'print $2'})

	sudo kill -2 $_PID

}

function launch

{

# capture only one @MAC, on $INTIF, max filesize=10M, without flows to PRIVATE_IP except DNS

	tcpdump "ether host $1 && (host $PRIVATE_IP && port 53) || host not $PRIVATE_IP" -i $INTIF -n -C 10 -W 1 -w /var/Save/iot_captures/$1.pcap

}

function flush

{

	sudo rm /var/Save/iot_captures/$1.pcap -f

}

while getopts "l k i f" option; do

	case "${option}" in

		l)

			launch $2

			;;

		k)

			kill $2

			;;

		i)

			info $2

			;;

		f)

			flush $2

			;;

	esac

done

#End