#!/bin/sh
# ctdb event script for TGTD based iSCSI

PATH=/bin:/usr/bin:$PATH

. $CTDB_BASE/functions
loadconfig ctdb
loadconfig iscsi

cmd="$1"
shift

[ "$CTDB_MANAGES_ISCSI" = "yes" ] || exit 0

[ -z "$CTDB_START_ISCSI_SCRIPTS" ] && {
	echo "No iscsi start script directory found"
	exit 0
}

case $cmd in 
     startup)
	;;

     takeip)
	;;

     releaseip)
	;;

     recovered)
	# block the iscsi port
	iptables -I INPUT 1 -p tcp --dport 3260 -j DROP
	
	# shut down the iscsi service
	killall -9 tgtd >/dev/null 2>/dev/null

	THIS_NODE=`ctdb status | grep "THIS NODE" | sed -e "s/pnn://" -e "s/ .*//"`
	[ -z $THIS_NODE ] && {
		echo "70.iscsi: Failed to get node pnn"
		exit 0
	}

	# start the iscsi daemon
	tgtd >/dev/null 2>/dev/null

	for NODE in `ctdb ip | grep -v "Public" | egrep " ${THIS_NODE}$" | sed -e "s/ .*//"`; do
		[ -f $CTDB_START_ISCSI_SCRIPTS/${NODE}.sh ] && {
			echo Starting iscsi service for public address $NODE
			$CTDB_START_ISCSI_SCRIPTS/${NODE}.sh
		}
	done

	# remove all iptables rules
	while `iptables -D INPUT -p tcp --dport 3260 -j DROP 2>/dev/null >/dev/null` ;  do
		true;
	done

	;;

     shutdown)
	# shutdown iscsi when ctdb goes down
	killall -9 tgtd >/dev/null 2>/dev/null
	;;

     monitor)
	[ -f $CTDB_BASE/state/iscsi/iscsi_active ] && {
		ctdb_check_tcp_ports "iscsi" 3260
	}
	;;
esac

# ignore unknown commands
exit 0