source: npl/phone/custom_scripts/asterisk_guardian.sh @ 76ea60c

#!/bin/bash
#(C) 2009 DatuX HR Meertens
#This script monitores system values and generates snmptraps

source /etc/asterisk_guardian.conf

function retrieveActiveCalls {
        return `asterisk -r -x "show channels" | grep "active call" | cut -d ' ' -f 1`
}
function sendSnmpTrap {
        #`snmptrap -e $EngineID -v 3 -u $Username -a MD5 -A $Password -l authNoPriv $Hostname "" snmpTrap .1.3.6.1.4.1.22736.1.2.5 i $1`
        `snmptrap -v 2c -c public $Hostname "" snmpTrap .1.3.6.1.4.1.22736.1.2.5 i $1`
}


#initial check
retrieveActiveCalls
PreviousActiveCalls=$?
timer=0

while(true);
do

        retrieveActiveCalls
        activeCalls=$?
        if [ $activeCalls -ge `echo "$PreviousActiveCalls+$CallDeviateValue" | bc` ]; then
                sendSnmpTrap $activeCalls
        fi
        if [ $activeCalls -le `echo "$PreviousActiveCalls-$CallDeviateValue" | bc ` ]; then
                sendSnmpTrap $activeCalls
        fi
        if [ $timer -ge $SendActiveCallsStatusInterval ]; then
                #Retrieve active calls
                retrieveActiveCalls
                activeCalls=$?
                sendSnmpTrap $activeCalls
                #reset timer
                timer=0
        fi
        PreviousActiveCalls=$activeCalls
        sleep $CallDeviateCheckInterval
        timer=`echo "$CallDeviateCheckInterval+$timer" |bc`
done