Close turn connection

Without it the WG can not exit from the read loop

client/firewall/nftables/manager_linux.go

@@ -143,7 +143,7 @@ func (m *Manager) AllowNetbird() error {
 	}
 
 	if rule := m.detectAllowNetbirdRule(rules); rule != nil {
-		log.Debugf("allow netbird rule already exists: %v", rule)
+		log.Debugf("allow netbird rule already exists: %#v", rule)
 		return nil
 	}
 

client/internal/engine.go

@@ -200,6 +200,7 @@ func NewEngineWithProbes(
 		networkSerial:  0,
 		sshServerFunc:  nbssh.DefaultSSHServer,
 		statusRecorder: statusRecorder,
+		wgProxyFactory: &wgproxy.Factory{},
 		mgmProbe:       mgmProbe,
 		signalProbe:    signalProbe,
 		relayProbe:     relayProbe,
@@ -1157,6 +1158,8 @@ func (e *Engine) close() {
 		log.Errorf("failed closing ebpf proxy: %s", err)
 	}
 
+	e.turnRelay.Close()
+
 	// stop/restore DNS first so dbus and friends don't complain because of a missing interface
 	if e.dnsServer != nil {
 		e.dnsServer.Stop()

client/internal/relay/turn.go

@@ -87,6 +87,20 @@ func (r *PermanentTurn) RelayConn() net.PacketConn {
 	return r.relayConn
 }
 
+func (r *PermanentTurn) Close() {
+	r.turnClient.Close()
+
+	err := r.relayConn.Close()
+	if err != nil {
+		log.Errorf("failed to close relayConn: %s", err.Error())
+	}
+
+	err = r.stunConn.Close()
+	if err != nil {
+		log.Errorf("failed to close stunConn: %s", err.Error())
+	}
+}
+
 func (r *PermanentTurn) discoverPublicIP() (*net.UDPAddr, error) {
 	addr, err := r.turnClient.SendBindingRequest()
 	if err != nil {

iface/bind/bind.go

@@ -76,7 +76,6 @@ func (s *ICEBind) createIPv4ReceiverFn(ipv4MsgsPool *sync.Pool, pc *ipv4.PacketC
 				msg := &(*msgs)[0]
 				msg.N, msg.Addr, err = netConn.ReadFrom(msg.Buffers[0])
 				if err != nil {
-					log.Debugf("read err from turn server: %v", err)
 					return 0, err
 				}
 				log.Debugf("----msg address is: %s, size: %d", msg.Addr.String(), msg.N)

iface/tun_usp_linux.go

@@ -54,7 +54,7 @@ func (t *tunUSPDevice) Create() (wgConfigurer, error) {
 	t.device = device.NewDevice(
 		t.wrapper,
 		t.iceBind,
-		device.NewLogger(device.LogLevelVerbose, "[netbird] "),
+		device.NewLogger(device.LogLevelError, "[netbird] "),
 	)
 
 	err = t.assignAddr()