#!/bin/sh

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

echo_success() {
  printf "[ \033[32;1mOK\033[0;37m ]\n"
  return 0
}

echo_failure() {
  printf "[ \033[31;1mFAILED\033[0;37m ]\n"
  return 1
}


# set to correct product (USB or PCI)
UNICORN="unicorn_pci"
#UNICORN="unicorn_usb"
VPI=8
VCI=35

# Module parameters

# ANSI=1,G.lite=2,MULTI=3,G.dmt=4,
MODE=1

MODPROBE="/sbin/modprobe"

PPPD="/usr/sbin/pppd"
PLUGIN="/usr/lib/pppd/2.4.1/pppoatm.so"

USER=airmex@net1.dual.nerim

cleanup() {
     echo ""
     echo "initialization of ADSL PPPoATM failed!"
     echo ""
     $MODPROBE -r $UNICORN >/dev/null 2>&1
     break
}


EXITCODE=1
case "$1" in
  reload)
	echo -n "Killing pppd "
	kill `ps -fu root | grep $USER | grep -v 'grep' | awk '{ print $2 }'`
	if test $? -eq 0; then
	    echo_success
	else
	    echo_failure
	fi

	echo "Starting ppd" 	
	$PPPD user $USER plugin $PLUGIN $VPI.$VCI  > /dev/null 2>&1
	if test $? -eq 0; then
	    echo_success
	else
	    echo_failure
	fi
	;;

  check)
 	echo -n "Testing ADSL link "
    ps -fu root | grep $USER | grep -v 'grep' | wc -l | grep 0  > /dev/null 2>&1
	if test $? -eq 0; then
	    echo_failure
		exit 1
	else
	    echo_success
	fi
    ;;

  check-start)
	$0 check
	if test $? -eq 1; then
		echo Restarting ADSL Link... 
		$0 start
	fi
    ;;

  restart)
    $0 stop
    $0 start
    ;;
    
  stop)
	echo "killing pppd"
	kill `ps -fu root | grep $USER | grep -v 'grep' | awk '{ print $2 }'`

 	echo -n "removing $UNICORN"
	$MODPROBE -r $UNICORN >/dev/null  2>&1
	if test $? -eq 0; then
	    echo_success
	else
	    echo_failure
	fi
	echo
    ;;
  start)
    echo -n "loading $UNICORN, mode=$MODE "
	$MODPROBE pppoatm > /dev/null 2>&1
	$MODPROBE $UNICORN ActivationMode=$MODE > /dev/null 2>&1
	if test $? -eq 0; then
	    echo_success
	else
	    echo_failure
	    cleanup
	fi
	echo

	echo -n "Attente synchro du modem "
	retry=60
	while [ -z "`/bin/cat /proc/net/atm/UNICORN\:0 | fgrep "SHOWTIME L0"`" -a "$retry" -gt 0 ]
	    do
	    sleep 1
	    echo -n "."
	    retry=$[$retry-1]
	    done
	if test "$retry" -gt 0 ; then
	    echo_success
	else
	    echo_failure
	    cleanup
	fi

	echo -n "ADSL synchro found, starting pppd "
	$PPPD user $USER plugin $PLUGIN $VPI.$VCI > /dev/null 2>&1
	if test $? -eq 0; then
	    echo_success
	else
	    echo_failure
	    cleanup
	fi
	echo

    ;;	
   *)
   echo "Usage: $0 start|stop|restart|reload|check|check-start" 
   exit 2
   ;;
     
esac
EXITCODE=0

exit $EXITCODE