#!/bin/bash
# $Header:$

# IFACE         = Logical interface name
# MODE          = start | stop
# METHOD        = manual, otherwise exit!
# IF_DEVICE	= device to be used
# IF_PROXY_ARP  = 0/1 - should this interface be configured for proxy-arp

. /etc/network/ifupdown-scripts-zg2.d/common-functions

# set_bool_value key{0/1} value, where key is a path in
# /proc/sys/net/ipv4/conf/$IF_DEVICE
set_bool_value()
{
  KEY="$1"
  VAL="$2"

  [ -z "$VAL" ] && exit 0

  IFACEDIR="/proc/sys/net/ipv4/conf/$IF_DEVICE"

  if ! echo $VAL | grep -s -q '\(0\|1\)'; then
    abort "no valid value $VAL for key $KEY"
  fi
  
  if [ -e "$IFACEDIR/$KEY" ]; then
    echo $VAL > $IFACEDIR/$KEY
  else
    abort "No such key $KEY in $IFACEDIR for $IF_DEVICE"
  fi
}

case "$MODE" in
  start)
    set_bool_value "proxy_arp" "$IF_PROXY_ARP"
    ;;
  *)
    ;;
esac

# end of file