starting engine by passing file descriptor on engine start

client/internal/connect.go

@@ -42,6 +42,19 @@ func RunClientMobile(ctx context.Context, config *Config, statusRecorder *peer.S
 	return runClient(ctx, config, statusRecorder, mobileDependency)
 }
 
+func RunClientiOS(ctx context.Context, config *Config, statusRecorder *peer.Status, fileDescriptor int32, iFaceDiscover stdnet.ExternalIFaceDiscover, routeListener routemanager.RouteListener, dnsAddresses []string, dnsReadyListener dns.ReadyListener) error {
+	// func RunClientiOS(ctx context.Context, config *Config, statusRecorder *peer.Status, iFaceDiscover stdnet.ExternalIFaceDiscover, routeListener routemanager.RouteListener, dnsAddresses []string, dnsReadyListener dns.ReadyListener) error {
+	mobileDependency := MobileDependency{
+		TunAdapter:       nil,
+		FileDescriptor:   fileDescriptor,
+		IFaceDiscover:    iFaceDiscover,
+		RouteListener:    routeListener,
+		HostDNSAddresses: dnsAddresses,
+		DnsReadyListener: dnsReadyListener,
+	}
+	return runClient(ctx, config, statusRecorder, mobileDependency)
+}
+
 func runClient(ctx context.Context, config *Config, statusRecorder *peer.Status, mobileDependency MobileDependency) error {
 	backOff := &backoff.ExponentialBackOff{
 		InitialInterval:     time.Second,

client/internal/engine.go

@@ -217,13 +217,16 @@ func (e *Engine) Start() error {
 	e.routeManager = routemanager.NewManager(e.ctx, e.config.WgPrivateKey.PublicKey().String(), e.wgInterface, e.statusRecorder, routes)
 	e.routeManager.SetRouteChangeListener(e.mobileDep.RouteListener)
 
-	if runtime.GOOS != "android" {
-		err = e.wgInterface.Create()
-	} else {
-		err = e.wgInterface.CreateOnMobile(iface.MobileIFaceArguments{
+	switch runtime.GOOS {
+	case "android":
+		err = e.wgInterface.CreateOnAndroid(iface.MobileIFaceArguments{
 			Routes: e.routeManager.InitialRouteRange(),
 			Dns:    e.dnsServer.DnsIP(),
 		})
+	case "ios":
+		err = e.wgInterface.CreateOniOS(e.mobileDep.FileDescriptor)
+	default:
+		err = e.wgInterface.Create()
 	}
 	if err != nil {
 		log.Errorf("failed creating tunnel interface %s: [%s]", wgIFaceName, err.Error())
@@ -466,7 +469,7 @@ func (e *Engine) updateSSH(sshConf *mgmProto.SSHConfig) error {
 		}
 		// start SSH server if it wasn't running
 		if isNil(e.sshServer) {
-			//nil sshServer means it has not yet been started
+			// nil sshServer means it has not yet been started
 			var err error
 			e.sshServer, err = e.sshServerFunc(e.config.SSHKey,
 				fmt.Sprintf("%s:%d", e.wgInterface.Address().IP.String(), nbssh.DefaultSSHPort))

client/internal/mobile_dependency.go

@@ -14,4 +14,5 @@ type MobileDependency struct {
 	RouteListener    routemanager.RouteListener
 	HostDNSAddresses []string
 	DnsReadyListener dns.ReadyListener
+	FileDescriptor   int32
 }