#!/bin/bash
#
# adsl           This shell script takes care of starting and stopping
#                 adsl.
#                It is useable for the mxStream variant.
#                Phons Bloemen (phons.bloemen@planet.nl) 
#
# chkconfig: - 38 18
# description: adsl 
# probe: true

# Source function library.
. /etc/rc.d/init.d/functions

# Source networking configuration.
. /etc/sysconfig/network

# Check that networking is up.
[ ${NETWORKING} = "no" ] && exit 0

[ -x /usr/sbin/pptp ] || exit 0

[ -x /etc/adsl/adsllogin.pl ] || exit 0

RETVAL=0

# See how we were called.
case "$1" in
  start)
        # Start daemons.
        echo -n "Starting adsl: "
	
        /usr/sbin/pptp 192.168.0.100 file /etc/ppp/options.adsl
	RETVAL=$?
 	[ $RETVAL -eq 0 ] && touch /var/lock/subsys/pptp
        cp -fp /etc/resolv.conf.correct /etc/resolv.conf
        echo `date ` "adsl startup command given" >>/var/log/adsl.log
        sync
	echo pptp
# adsllogin.pl is run from /etc/ppp/addroute-adsl 
#        /usr/bin/perl /etc/adsl/adsllogin.pl
        ;;
  stop)
        # Stop daemons.
        echo -n "Shutting down adsl: "
        if [ -f /var/run/ppp-adsl.pid ]; then 
               echo -n pppd
            kill -HUP ` head -1 /var/run/ppp-adsl.pid `
            killall pptp
            killall pppd
            killall pptp
           	    RETVAL=$?
	    [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/pppd-adsl
            echo -n adsl
            sleep 5
        fi
        killproc pptp
        echo `date ` "adsl stop command given" >>/var/log/adsl.log
        [ -f /var/run/pptp/192.168.0.100 ] echo `date ` "pipe not closed" >>/var/log/adsl.log
        rm -rf /var/run/pptp/192.168.0.100
        echo
        ;;
  restart)
	$0 stop 
	$0 start
	;;
  status)
        RETVAL=0;
        if test -f /var/run/adsloff 
        then 
           echo `date ` "previous adsl status is hanging" >> /var/log/adsl.log
           rm -rf /var/run/adsloff
           RETVAL=1;
        else
           pid=`pidofproc /usr/sbin/pptp`
           [ "$pid" = "" ] && echo 'no pptp' >> /var/run/adsloff
           pid=`pidofproc /usr/sbin/pppd`
           [ "$pid" = "" ] && echo 'no pppd' >> /var/run/adsloff
# Test is no good: it MAY run on ppp1....
#        ifconfig ppp0 
#          [ $? -eq 0 ] && echo 'no ppp0' >> /var/run/adsloff
# Test with ping no good: it sometimes hangs (-w does not work)      
#        ping -n -c 3 -w 10 195.121.6.194 >> /dev/null
# Use the mtr tool (if it pings, it is ok)
           ISOK=`/usr/local/sbin/mtr -r -n -c 3 195.121.6.194 | wc -l `
           [ $ISOK -le "4" -o $ISOK -ge "7" ] && echo 'no ping (' $ISOK ')' >> /var/run/adsloff
           if test -f /var/run/adsloff
           then
              echo `date ` ` cat /var/run/adsloff ` >> /var/log/adsl.log
              RETVAL=1;
           fi
        fi           
	;;
    check)
        sh $0 status
        if test -f /var/run/adsloff
        then
            logger -p local1.info $0 "Adsl waker forced restart"
            echo `date ` "adsl waker forced restart" >>/var/log/adsl.log
            rm -rf /var/run/adsloff
            sh  $0 stop
            sleep 3
            sh $0 start
        fi	
	;;
  probe)
	exit 0
	;;
  *)
        echo "Usage: named {start|stop|status|check|restart}"
        exit 1
esac

exit $RETVAL

L