ovs

#!/bin/sh

ovs_dir_conf="/usr/local/etc/openvswitch"
                                                                                                                                    
ovs_file_conf_db="${ovs_dir_conf}/conf.db"
ovs_file_schema="vswitchd/vswitch.ovsschema"
#ovs_file_schema="${ovs_dir_conf}/vswitch.ovsschema"
ovs_file_var="/usr/local/var/run/openvswitch"

start()
{
	#
	# Load openvswitch.ko
	#
	[ "`/sbin/lsmod | grep openvswitch`" = "" ] && /sbin/modprobe openvswitch

	# create db
	[ -d $ovs_dir_conf ] || mkdir -p $ovs_dir_conf
	[ -f $ovs_file_conf_db ] || ovsdb-tool create $ovs_file_conf_db $ovs_file_schema

	# start ovsdb server daemon
	[ -d $ovs_file_var ] || mkdir -p $ovs_file_var
	ovsdb-server --remote=punix:${ovs_file_var}/db.sock \
		--remote=db:Open_vSwitch,Open_vSwitch,manager_options \
		--private-key=db:Open_vSwitch,SSL,private_key \
		--certificate=db:Open_vSwitch,SSL,certificate \
		--bootstrap-ca-cert=db:Open_vSwitch,SSL,ca_cert --pidfile --detach --log-file

	# start ovs vswitch
	ovs-vsctl --no-wait init

	ovs-vswitchd --pidfile --detach --log-file
	
	echo "start finished"
	# add a bridge of ovs, type=internal
#	ovs-vsctl --may-exist add-br br0

	# add port for bridge, type=system
#	ovs-vsctl --may-exist add-port br0 swp1 -- set Interface swp1 ofport_request=1
#	ovs-vsctl --may-exist add-port br0 swp2 -- set Interface swp2 ofport_request=2
#	ovs-vsctl --may-exist add-port br0 swp3 -- set Interface swp3 ofport_request=3
#	ovs-vsctl --may-exist add-port br0 swp4 -- set Interface swp4 ofport_request=4
}

ended()
{
	killall ovs-vswitchd ovsdb-server > /dev/null 2>&1
	rm -f $ovs_dir_conf/.conf.db.~lock~

	#
	# un-load openvswitch.ko
	#
	/sbin/rmmod openvswitch > /dev/null 2>&1
	echo "ended finished"
}

case $1 in
	s)
		start
		;;
	e)
		ended
		;;
	*)
		echo "usage sudo ./ovs [s|e]"
		;;
esac