#!/bin/sh

export PATH=/sbin:/bin:/usr/sbin:/usr/bin:/mod/sbin:/mod/bin:/mod/usr/sbin:/mod/usr/bin
export LD_LIBRARY_PATH=/mod/lib:/mod/usr/lib

DAEMON=snmpd
SNMPDOPTS='-Lf /dev/null -p /var/run/snmpd.pid'
CFGFILE="/tmp/flash/snmpd.conf"
[ -e /etc/snmp/snmpd.conf ] && CFGFILE="/etc/snmp/snmpd.conf"

case "$1" in
	""|load|start|restart)
		if [ ! -r "/mod/etc/conf/netsnmp.cfg" ]; then
			echo "Error[netsnmp]: not configured" 1>&2
			exit 1
		fi

		. /mod/etc/conf/netsnmp.cfg;

		if [ ! -e "$CFGFILE" ] ; then
			echo "Creating $CFGFILE"
			{
			echo "com2sec readonly  192.168.0.0/16  public"
			echo "com2sec readonly  169.254.0.0/16  public"
			cat <<"EOF"
com2sec readonly  127.0.0.0/8     public
com2sec paranoid  default         public

group MyROSystem v1  paranoid
group MyROSystem v2c paranoid
group MyROSystem usm paranoid
group MyROGroup  v1  readonly
group MyROGroup  v2c readonly
group MyROGroup  usm readonly

view all    included .1 80
view system included .1.3.6.1.2.1.1

access MyROSystem "" any noauth exact system none none
access MyROGroup  "" any noauth exact all    none none
EOF
			} > $CFGFILE
		/usr/bin/modsave flash
		fi
		;;
esac

start() {
	echo -n 'Starting snmpd...'
	
	mkdir -p /var/lib/snmp
	$DAEMON -c $CFGFILE $SNMPDOPTS
	exitval=$?
	if [ "$exitval" -eq 0 ]; then
		echo 'done.'
	else
		echo 'failed.'
		exit $exitval
	fi
}

stop() {
	echo -n 'Stopping snmpd...'
	killall $DAEMON > /dev/null 2>&1
	exitval=$?
	
	if [ "$exitval" -eq 0 ]; then
		echo 'done.'
	else
		echo 'failed.'
		exit $exitval
	fi
}


case "$1" in
	""|load)
		modreg cgi 'netsnmp' 'Net-SNMP'
		deffile='/mod/etc/default.netsnmp/snmpd_conf.def'
		[ -r "/tmp/flash/snmpd_conf.def" ] && deffile="/tmp/flash/snmpd_conf.def"
		[ "$CFGFILE" != "/etc/snmp/snmpd.conf" ] && modreg file 'snmpd_conf' 'Net-SNMP: snmpd.conf' 0 "$deffile"
		if [ "$NETSNMP_ENABLED" != "yes" ]; then
			echo "$DAEMON is disabled" 1>&2
			exit 1
		fi

		start
		;;
	unload)
		stop

		[ "$CFGFILE" != "/etc/snmpd/snmpd.conf" ] && modunreg file 'snmpd_conf'
		;;
	start)
		start
		;;
	stop)
		stop
		;;
	restart)
		stop
		sleep 1
		start
		;;
	status)
		if [ -z "$(pidof "$DAEMON")" ]; then
			echo 'stopped'
		else
			echo 'running'
		fi
		;;
	*)
		echo "Usage: $0 [load|unload|start|stop|restart|status]" 1>&2
		exit 1
		;;

esac

exit 0