// Handle switch connected event
func (self *OFSwitch) switchConnected() {
self.app.SwitchConnected(self)
// Send new feature request
self.Send(openflow13.NewFeaturesRequest())
// FIXME: This is too fragile. Create a periodic timer
// Start the periodic echo request loop
self.Send(openflow13.NewEchoRequest())
}
// Handle openflow messages from the switch
func (self *OFSwitch) handleMessages(dpid net.HardwareAddr, msg util.Message) {
log.Debugf("Received message: %+v, on switch: %s", msg, dpid.String())
switch t := msg.(type) {
case *common.Header:
switch t.Header().Type {
case openflow13.Type_Hello:
// Send Hello response
h, err := common.NewHello(4)
if err != nil {
log.Errorf("Error creating hello message")
}
self.Send(h)
case openflow13.Type_EchoRequest:
// Send echo reply
res := openflow13.NewEchoReply()
self.Send(res)
case openflow13.Type_EchoReply:
// FIXME: This is too fragile. Create a periodic timer
// Wait three seconds then send an echo_request message.
go func() {
<-time.After(time.Second * 3)
// Send echo request
res := openflow13.NewEchoRequest()
self.Send(res)
}()
case openflow13.Type_FeaturesRequest:
case openflow13.Type_GetConfigRequest:
case openflow13.Type_BarrierRequest:
case openflow13.Type_BarrierReply:
}
case *openflow13.ErrorMsg:
log.Errorf("Received ofp1.3 error msg: %+v", *t)
self.stream.Shutdown <- true
case *openflow13.VendorHeader:
case *openflow13.SwitchFeatures:
case *openflow13.SwitchConfig:
switch t.Header.Type {
case openflow13.Type_GetConfigReply:
case openflow13.Type_SetConfig:
}
case *openflow13.PacketIn:
log.Infof("Received packet(ofctrl): %+v", t)
// send packet rcvd callback
self.app.PacketRcvd(self, (*PacketIn)(t))
case *openflow13.FlowRemoved:
case *openflow13.PortStatus:
// FIXME: This needs to propagated to the app.
case *openflow13.PacketOut:
case *openflow13.FlowMod:
case *openflow13.PortMod:
case *openflow13.MultipartRequest:
case *openflow13.MultipartReply:
// FIXME: find a way to get multipart resp to app
}
}