#!/bin/sh
#
#      clip.init
#
#               Bring up/down Classical IP over ATM using PVCs.

# Notes:
# You must be superuser to execute this script
# The signalling demon and ilmi demon are not turned on.

# Edit for your configuration
IPADDR_ATM="192.168.1.2"
IPADDR_CHAT="192.168.1.1"
NET_IPADDR="192.168.1.0"
PVC="0.0.32"
MTU=2000
#LOGPATH="/var/log/atm"
LOGPATH="/h10/var/log/atm"

if [ "$#" -lt 1 ]
then
  echo "Usage: clip.init <start | stop> [-d]"
  exit 1
fi

if [ "$#" -eq 2 ]
then
  if [ "$2" = "-d" -o "$2" = "d" ]
  then
    debug="true"
  else
    echo "Unrecognized option: $2"
    echo "Usage: clip.init <start | stop> [-d]"
    echo "Use -d option to turn on debugging log"
    exit 2
  fi
else
  debug="false"
fi

case "$1" in

start)

  echo "starting atmarp daemon"
  if [ $debug = "true" ]
  then
    if [ -f $LOGPATH/logarp ]
    then
      /bin/mv $LOGPATH/logarp $LOGPATH/logarp.old
    fi
    /usr/local/sbin/atmarpd -b -d -l $LOGPATH/logarp
  else
   /usr/local/sbin/atmarpd -b
  fi

  sleep 2

  echo "creating interface"
  /usr/local/sbin/atmarp -c atm0 

  if [ "`hostname -s`" = "atm" ]
  then

    echo "configuring interface"
    /sbin/ifconfig atm0 $IPADDR_ATM up mtu $MTU

    echo "adding route to routing table"
    /sbin/route add -net $NET_IPADDR netmask 255.255.255.0 dev atm0

    echo "setting up the pvc"
    if [ $debug = "true" ]
    then
      if [ -f $LOGPATH/logclip ]
      then
        /bin/mv $LOGPATH/logclip $LOGPATH/logclip.old
      fi
      /usr/local/sbin/atmarp -s $IPADDR_CHAT $PVC > $LOGPATH/logclip 2>&1
    else
      /usr/local/sbin/atmarp -s $IPADDR_CHAT $PVC
    fi

  else   # host is chattooga

    echo "configuring interface"
    /sbin/ifconfig atm0 $IPADDR_CHAT up mtu $MTU

    echo "adding route to routing table"
    /sbin/route add -net $NET_IPADDR netmask 255.255.255.0 dev atm0

    echo "setting up the pvc"
    if [ $debug = "true" ]
    then
      if [ -f $LOGPATH/logclip ]
      then
        /bin/mv $LOGPATH/logclip $LOGPATH/logclip.old
      fi
      /usr/local/sbin/atmarp -s $IPADDR_ATM $PVC >> startip.log 2>&1
    else
      /usr/local/sbin/atmarp -s $IPADDR_ATM $PVC
    fi
  fi
  ;;

stop)

  # Shutting down interface

  echo "Shutting down interface"
  /sbin/ifconfig "atm0" down

  # Stopping atmarp daemon

  pid=`ps -ax | grep /usr/local/sbin/atmarpd | grep -v grep | awk '{print $1}'`
  echo "Checking for atmarpd..."
  if [ "$pid" ]
  then
    echo "Stopping atmarpd"
    kill -9 $pid
    echo "done"
  fi
  ;;

*) 
  echo "Usage: clip.init <start | stop> [-d]"
  ;;
esac