#!/bin/bash
#
# Startup script handle the initialisation of PXE daemon
#
# chkconfig: 345 80 54
#
# description: A Preboot Execution Environment (PXE) Server.  This 
# server will allow you to network boot other PXE based machines.
#
# Script Authors: Erwan Velu <erwan@mandrakesoft.com>
#		  Antoine Ginies <aginies@mandrakesoft.com>
#
# Based on init script for pxe of Intel
#
#
# config: /etc/pxe.conf
#
### BEGIN INIT INFO
# Provides: pxe
# Required-Start: dhcpd
# Required-Stop: dhcpd
# Default-Start: 3 4 5
# Short-Description: PXE daemon
# Description: A Preboot Execution Environment (PXE) Server. This server
#              will allow you to network boot other PXE based machines.
### END INIT INFO

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

PXE_CONF=/etc/pxe.conf
PXE_BIN=/usr/sbin/pxe
PXE_PID=/tmp/pxe.pid
LOCKFILE=/var/lock/subsys/pxe

RETVAL=0
#
#	See how we were called.
#
case "$1" in
  start)
	if [ "$(pidof dhcpd)" = "" ]; then
                gprintf "Dhcp server is not running on this machine !\n"
		gprintf "Be sure that a valid PXE Dhcp server is running on your network\n"
        fi

  	if [ ! -f ${PXE_CONF} ]; then
	        gprintf "${PXE_CONF} is not present !\n"
	        exit -1
	fi

	if [ ! -x ${PXE_BIN} ]; then
	        gprintf "${PXE_BIN} is not executable !\n"
	        exit -1
	fi

	# Looking for interface used for pxe service
	INTERFACE=$(grep "interface=" ${PXE_CONF} | cut -d "=" -f 2);

	# Check if pxe is already running
	if [ "$(pidof pxe)" = "" ]; then
		rm -rf $LOCKFILE
		rm -rf $PXE_PID
	    	route add -host 255.255.255.255 $INTERFACE 1>/dev/null 2>/dev/null
	    	route add -net 224.0.0.0 netmask 224.0.0.0 $INTERFACE 1>/dev/null 2>/dev/null
	    	echo -n 'Starting PXE server'
	    	daemon ${PXE_BIN} -c ${PXE_CONF}
	    	RETVAL=$?
	    	[ $RETVAL -eq 0 ] && touch /var/lock/subsys/pxe
	    	echo
	else	   
	    	echo -n 'PXE server already started !'
	    	echo 
	fi
	;;
  stop)
	#action "Stopping pxe daemon: " 
	route del 255.255.255.255 2>/dev/null
	route del -net 224.0.0.0/3 2>/dev/null
	echo -n 'Stopping PXE server'
	killproc ${PXE_BIN}
	rm -f ${PXE_PID}
	RETVAL=$?
	[ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/pxe
	echo
	;;
  reload|restart)
	$0 stop
	$0 start
	RETVAL=$?
	;;
  status)
	status ${PXE_BIN}
	RETVAL=$?
	;;
  *)
	gprintf "Usage: /etc/rc.d/init.d/pxe {start|stop|restart|reload|status}\n"
	exit 1
esac

exit $RETVAL