send discovery mode msg

discovery/discoverer.go

@@ -193,6 +193,12 @@ func (d *ofDiscoverer) discover(req types.DiscoveryRequest, s session.DiscoveryS
 		return
 	}
 
+	if s.Privileged() {
+		d.SendMessage(req, types.DiscoveryMessageTypeMode, "Privileged")
+	} else {
+		d.SendMessage(req, types.DiscoveryMessageTypeMode, "Unprivileged")
+	}
+
 	d.complexDiscover(s)
 	d.hierarchyDiscover(s)
 }

discovery/session/discovery-session.go

@@ -54,6 +54,7 @@ type DiscoverySession interface {
 	DiscoveredService(port *omd.Port, name string) *omd.Service
 	DiscoveredServices(port *omd.Port) map[string]*omd.Service
 	DiscoveredAllServices() map[*omd.Port]map[string]*omd.Service
+	Privileged() bool
 
 	Shutdown()
 	StopChan() <-chan struct{}
@@ -84,6 +85,7 @@ type ofDiscoverySession struct {
 	includeMachosts map[string]*omd.Host
 	ports           map[*omd.Host]map[json.Number]map[string]*omd.Port
 	services        map[*omd.Port]map[string]*omd.Service
+	privileged      bool
 
 	stopChan chan struct{}
 }
@@ -191,9 +193,11 @@ func (ds *ofDiscoverySession) InitWithRequest(request types.DiscoveryRequest) er
 	_pCapScanner := pcap.NewPCapScanner(ds.zone)
 	if err := _pCapScanner.Start(); nil == err {
 		ds.pCapScanner = _pCapScanner
+		ds.privileged = true
 		log.Print("Privileged mode")
 	} else {
 		log.Print(err)
+		ds.privileged = false
 		log.Print("Unprivileged mode")
 	}
 
@@ -204,6 +208,10 @@ func (ds *ofDiscoverySession) PCapScanner() pcap.PCapScanner {
 	return ds.pCapScanner
 }
 
+func (ds *ofDiscoverySession) Privileged() bool {
+	return ds.privileged
+}
+
 func (ds *ofDiscoverySession) SetDiscoveryDelegator(discoveryDelegator chan<- interface{}) {
 	ds.discoveryDelegator = discoveryDelegator
 }

discovery/types/types.go

@@ -7,6 +7,7 @@ const (
 	DiscoveryMessageTypeQueueing
 	DiscoveryMessageTypeQueueingFailed
 	DiscoveryMessageTypeQueueingTimeout
+	DiscoveryMessageTypeMode
 	DiscoveryMessageTypeStart
 	DiscoveryMessageTypeStop
 	DiscoveryMessageTypeError

service/DiscoveryService.go

@@ -72,7 +72,16 @@ func (s *DiscoveryService) InitService() {
 						),
 						"/scanner",
 					)
-					// log.Print("Queueing ", data)
+				case types.DiscoveryMessageTypeMode:
+					s.PubSub.Pub(
+						rpc.MakeRPCMessage(
+							[]string{request.RequesterID()},
+							"DiscoveryService.DiscoveryMode",
+							datas,
+						),
+						"/scanner",
+					)
+				// log.Print("Queueing ", data)
 				case types.DiscoveryMessageTypeQueueingFailed:
 					s.PubSub.Pub(
 						rpc.MakeRPCMessage(