ovsdriver/src/ovs.coffee

Openvswitch utility commands wrapper

util = require 'util'
exec = require('child_process').exec

class OVS

	execute : (command, callback) ->
		callback false unless command?
		util.log "executing #{command}..."        
		exec command, (error, stdout, stderr) =>
			#util.log "ovsdriver: execute - Error : " + error
			#util.log "ovsdriver: execute - stdout : " + stdout
			#util.log "ovsdriver: execute - stderr : " + stderr
			if error
				callback false
			else
				callback true    

	createBridge : (bridgname, callback) ->
		command = "ovs-vsctl add-br #{bridgname}"
		@execute command,(result) =>
			callback result

	addInterface : (bridgname,ifname,callback) ->
		command = "ovs-vsctl add-port #{bridgname} #{ifname}"
		@execute command,(result) =>
			callback result

	enableBridge : (bridgname, callback) ->
		command = "ifconfig #{bridgname} up"
		@execute command,(result) =>
			callback result


	disableBridge : (bridgname , callback) ->
		command = "ifconfig #{bridgname} down"
		@execute command,(result) =>
			callback result

	setController : (bridgename , controllerip, callback)->
		command = "ovs-vsctl set-controller #{bridgename} #{controllerip}"
		@execute command,(result) =>
			callback result

	deleteBridge : (bridgename, callback) ->
		@disableBridge bridgename, (result)=>
			command = "ovs-vsctl del-br #{bridgename}"
			@execute command,(result) =>
				callback result

	getStatus: (bridgename, callback) ->
		command = "ovs-vsctl show #{bridgename}"
		exec command, (error, stdout, stderr) =>
			#util.log "ovsdriver: execute - Error : " + error
			#util.log "ovsdriver: execute - stdout : " + stdout
			#util.log "ovsdriver: execute - stderr : " + stderr
			if stdout? or error            
				callback "notrunning"
			else
				callback "running" 		
	setOFVersion: (bridgename, versionno, callback)->
		switch versionno
			when 1.0 then version = "OpenFlow10" 
			when 1.1 then version = "OpenFlow11"
			when 1.2 then version = "OpenFlow12"
			when 1.3 then version = "OpenFlow13"
			else version = "OpenFlow10"
		command = "ovs-vsctl set bridge #{bridgename} protocols=#{version}"
		@execute command,(result) =>
			callback result

	setDPid : (bridgename,dpid, callback)->
		command = "ovs-vsctl set bridge #{bridgename} other_config:datapath-id=#{dpid}"
		@execute command,(result) =>
			callback result

module.exports = new OVS