package/dhcp/S80dhcp-relay

   1 #!/bin/sh
   2 #
   3 # $Id: dhcp3-relay,v 1.1 2004/04/16 15:41:08 ml Exp $
   4 #
   5
   6 # What servers should the DHCP relay forward requests to?
   7 # e.g: SERVERS="192.168.0.1"
   8 SERVERS=""
   9
  10 # On what interfaces should the DHCP relay (dhrelay) serve DHCP requests?
  11 INTERFACES=""
  12
  13 # Additional options that are passed to the DHCP relay daemon?
  14 OPTIONS=""
  15
  16 # Read configuration variable file if it is present
  17 CFG_FILE="/etc/default/dhcrelay"
  18 [ -r "${CFG_FILE}" ] && . "${CFG_FILE}"
  19
  20 # Sanity checks
  21 test -f /usr/sbin/dhcrelay || exit 0
  22 test -n "$INTERFACES" || exit 0
  23 test -n "$SERVERS" || exit 0
  24
  25 # Build command line for interfaces (will be passed to dhrelay below.)
  26 IFCMD=""
  27 for I in $INTERFACES; do
  28         IFCMD=${IFCMD}"-i "${I}" "
  29 done
  30
  31 DHCRELAYPID=/var/run/dhcrelay.pid
  32
  33 case "$1" in
  34         start)
  35                 printf "Starting DHCP relay: "
  36                 start-stop-daemon -S -q -x /usr/sbin/dhcrelay -- -q $OPTIONS $IFCMD $SERVERS
  37                 [ $? = 0 ] && echo "OK" || echo "FAIL"
  38                 ;;
  39         stop)
  40                 printf "Stopping DHCP relay: "
  41                 start-stop-daemon -K -q -x /usr/sbin/dhcrelay
  42                 [ $? = 0 ] && echo "OK" || echo "FAIL"
  43                 ;;
  44         restart | force-reload)
  45                 $0 stop
  46                 $0 start
  47                 ;;
  48         *)
  49                 echo "Usage: $0 {start|stop|restart|force-reload}"
  50                 exit 1
  51 esac
  52
  53 exit 0