[client] Add --disable-networks flag to block network selection

client/cmd/root.go

@@ -75,6 +75,7 @@ var (
 	mtu                     uint16
 	profilesDisabled        bool
 	updateSettingsDisabled  bool
+	networksDisabled        bool
 
 	rootCmd = &cobra.Command{
 		Use:          "netbird",

client/cmd/service.go

@@ -44,6 +44,7 @@ func init() {
 	serviceCmd.AddCommand(runCmd, startCmd, stopCmd, restartCmd, svcStatusCmd, installCmd, uninstallCmd, reconfigureCmd, resetParamsCmd)
 	serviceCmd.PersistentFlags().BoolVar(&profilesDisabled, "disable-profiles", false, "Disables profiles feature. If enabled, the client will not be able to change or edit any profile. To persist this setting, use: netbird service install --disable-profiles")
 	serviceCmd.PersistentFlags().BoolVar(&updateSettingsDisabled, "disable-update-settings", false, "Disables update settings feature. If enabled, the client will not be able to change or edit any settings. To persist this setting, use: netbird service install --disable-update-settings")
+	serviceCmd.PersistentFlags().BoolVar(&networksDisabled, "disable-networks", false, "Disables network selection. If enabled, the client will not allow listing, selecting, or deselecting networks. To persist, use: netbird service install --disable-networks")
 
 	rootCmd.PersistentFlags().StringVarP(&serviceName, "service", "s", defaultServiceName, "Netbird system service name")
 	serviceEnvDesc := `Sets extra environment variables for the service. ` +

client/cmd/service_controller.go

@@ -61,7 +61,7 @@ func (p *program) Start(svc service.Service) error {
 			}
 		}
 
-		serverInstance := server.New(p.ctx, util.FindFirstLogPath(logFiles), configPath, profilesDisabled, updateSettingsDisabled)
+		serverInstance := server.New(p.ctx, util.FindFirstLogPath(logFiles), configPath, profilesDisabled, updateSettingsDisabled, networksDisabled)
 		if err := serverInstance.Start(); err != nil {
 			log.Fatalf("failed to start daemon: %v", err)
 		}

client/cmd/service_installer.go

@@ -59,6 +59,10 @@ func buildServiceArguments() []string {
 		args = append(args, "--disable-update-settings")
 	}
 
+	if networksDisabled {
+		args = append(args, "--disable-networks")
+	}
+
 	return args
 }
 

client/cmd/service_params.go

@@ -28,6 +28,7 @@ type serviceParams struct {
 	LogFiles              []string          `json:"log_files,omitempty"`
 	DisableProfiles       bool              `json:"disable_profiles,omitempty"`
 	DisableUpdateSettings bool              `json:"disable_update_settings,omitempty"`
+	DisableNetworks       bool              `json:"disable_networks,omitempty"`
 	ServiceEnvVars        map[string]string `json:"service_env_vars,omitempty"`
 }
 
@@ -78,6 +79,7 @@ func currentServiceParams() *serviceParams {
 		LogFiles:              logFiles,
 		DisableProfiles:       profilesDisabled,
 		DisableUpdateSettings: updateSettingsDisabled,
+		DisableNetworks:       networksDisabled,
 	}
 
 	if len(serviceEnvVars) > 0 {
@@ -142,6 +144,10 @@ func applyServiceParams(cmd *cobra.Command, params *serviceParams) {
 		updateSettingsDisabled = params.DisableUpdateSettings
 	}
 
+	if !serviceCmd.PersistentFlags().Changed("disable-networks") {
+		networksDisabled = params.DisableNetworks
+	}
+
 	applyServiceEnvParams(cmd, params)
 }
 

client/cmd/service_params_test.go

@@ -535,6 +535,7 @@ func fieldToGlobalVar(field string) string {
 		"LogFiles":              "logFiles",
 		"DisableProfiles":       "profilesDisabled",
 		"DisableUpdateSettings": "updateSettingsDisabled",
+		"DisableNetworks":       "networksDisabled",
 		"ServiceEnvVars":        "serviceEnvVars",
 	}
 	if v, ok := m[field]; ok {

client/cmd/testutil_test.go

@@ -152,7 +152,7 @@ func startClientDaemon(
 	s := grpc.NewServer()
 
 	server := client.New(ctx,
-		"", "", false, false)
+		"", "", false, false, false)
 	if err := server.Start(); err != nil {
 		t.Fatal(err)
 	}

client/proto/daemon.proto

@@ -727,6 +727,7 @@ message GetFeaturesRequest{}
 message GetFeaturesResponse{
   bool disable_profiles = 1;
   bool disable_update_settings = 2;
+  bool disable_networks = 3;
 }
 
 message TriggerUpdateRequest {}

client/server/network.go

@@ -9,6 +9,8 @@ import (
 	"strings"
 
 	"golang.org/x/exp/maps"
+	"google.golang.org/grpc/codes"
+	gstatus "google.golang.org/grpc/status"
 
 	"github.com/netbirdio/netbird/client/proto"
 	"github.com/netbirdio/netbird/route"
@@ -27,6 +29,10 @@ func (s *Server) ListNetworks(context.Context, *proto.ListNetworksRequest) (*pro
 	s.mutex.Lock()
 	defer s.mutex.Unlock()
 
+	if s.networksDisabled {
+		return nil, gstatus.Errorf(codes.Unavailable, errNetworksDisabled)
+	}
+
 	if s.connectClient == nil {
 		return nil, fmt.Errorf("not connected")
 	}
@@ -118,6 +124,10 @@ func (s *Server) SelectNetworks(_ context.Context, req *proto.SelectNetworksRequ
 	s.mutex.Lock()
 	defer s.mutex.Unlock()
 
+	if s.networksDisabled {
+		return nil, gstatus.Errorf(codes.Unavailable, errNetworksDisabled)
+	}
+
 	if s.connectClient == nil {
 		return nil, fmt.Errorf("not connected")
 	}
@@ -164,6 +174,10 @@ func (s *Server) DeselectNetworks(_ context.Context, req *proto.SelectNetworksRe
 	s.mutex.Lock()
 	defer s.mutex.Unlock()
 
+	if s.networksDisabled {
+		return nil, gstatus.Errorf(codes.Unavailable, errNetworksDisabled)
+	}
+
 	if s.connectClient == nil {
 		return nil, fmt.Errorf("not connected")
 	}

client/server/server.go

@@ -53,6 +53,7 @@ const (
 	errRestoreResidualState   = "failed to restore residual state: %v"
 	errProfilesDisabled       = "profiles are disabled, you cannot use this feature without profiles enabled"
 	errUpdateSettingsDisabled = "update settings are disabled, you cannot use this feature without update settings enabled"
+	errNetworksDisabled       = "network selection is disabled by the administrator"
 )
 
 var ErrServiceNotUp = errors.New("service is not up")
@@ -88,6 +89,7 @@ type Server struct {
 	profileManager         *profilemanager.ServiceManager
 	profilesDisabled       bool
 	updateSettingsDisabled bool
+	networksDisabled       bool
 
 	sleepHandler *sleephandler.SleepHandler
 
@@ -104,7 +106,7 @@ type oauthAuthFlow struct {
 }
 
 // New server instance constructor.
-func New(ctx context.Context, logFile string, configFile string, profilesDisabled bool, updateSettingsDisabled bool) *Server {
+func New(ctx context.Context, logFile string, configFile string, profilesDisabled bool, updateSettingsDisabled bool, networksDisabled bool) *Server {
 	s := &Server{
 		rootCtx:                ctx,
 		logFile:                logFile,
@@ -113,6 +115,7 @@ func New(ctx context.Context, logFile string, configFile string, profilesDisable
 		profileManager:         profilemanager.NewServiceManager(configFile),
 		profilesDisabled:       profilesDisabled,
 		updateSettingsDisabled: updateSettingsDisabled,
+		networksDisabled:       networksDisabled,
 		jwtCache:               newJWTCache(),
 	}
 	agent := &serverAgent{s}
@@ -1628,6 +1631,7 @@ func (s *Server) GetFeatures(ctx context.Context, msg *proto.GetFeaturesRequest)
 	features := &proto.GetFeaturesResponse{
 		DisableProfiles:       s.checkProfilesDisabled(),
 		DisableUpdateSettings: s.checkUpdateSettingsDisabled(),
+		DisableNetworks:       s.networksDisabled,
 	}
 
 	return features, nil

client/server/server_test.go

@@ -103,7 +103,7 @@ func TestConnectWithRetryRuns(t *testing.T) {
 		t.Fatalf("failed to set active profile state: %v", err)
 	}
 
-	s := New(ctx, "debug", "", false, false)
+	s := New(ctx, "debug", "", false, false, false)
 
 	s.config = config
 
@@ -164,7 +164,7 @@ func TestServer_Up(t *testing.T) {
 		t.Fatalf("failed to set active profile state: %v", err)
 	}
 
-	s := New(ctx, "console", "", false, false)
+	s := New(ctx, "console", "", false, false, false)
 	err = s.Start()
 	require.NoError(t, err)
 
@@ -234,7 +234,7 @@ func TestServer_SubcribeEvents(t *testing.T) {
 		t.Fatalf("failed to set active profile state: %v", err)
 	}
 
-	s := New(ctx, "console", "", false, false)
+	s := New(ctx, "console", "", false, false, false)
 
 	err = s.Start()
 	require.NoError(t, err)

client/server/setconfig_test.go

@@ -53,7 +53,7 @@ func TestSetConfig_AllFieldsSaved(t *testing.T) {
 	require.NoError(t, err)
 
 	ctx := context.Background()
-	s := New(ctx, "console", "", false, false)
+	s := New(ctx, "console", "", false, false, false)
 
 	rosenpassEnabled := true
 	rosenpassPermissive := true

client/ui/client_ui.go

@@ -314,6 +314,7 @@ type serviceClient struct {
 	lastNotifiedVersion  string
 	settingsEnabled      bool
 	profilesEnabled      bool
+	networksEnabled      bool
 	showNetworks         bool
 	wNetworks            fyne.Window
 	wProfiles            fyne.Window
@@ -368,6 +369,7 @@ func newServiceClient(args *newServiceClientArgs) *serviceClient {
 
 		showAdvancedSettings: args.showSettings,
 		showNetworks:         args.showNetworks,
+		networksEnabled:      true,
 	}
 
 	s.eventHandler = newEventHandler(s)
@@ -920,8 +922,10 @@ func (s *serviceClient) updateStatus() error {
 			s.mStatus.SetIcon(s.icConnectedDot)
 			s.mUp.Disable()
 			s.mDown.Enable()
-			s.mNetworks.Enable()
-			s.mExitNode.Enable()
+			if s.networksEnabled {
+				s.mNetworks.Enable()
+				s.mExitNode.Enable()
+			}
 			s.startExitNodeRefresh()
 			systrayIconState = true
 		case status.Status == string(internal.StatusConnecting):
@@ -1093,14 +1097,14 @@ func (s *serviceClient) onTrayReady() {
 		s.getSrvConfig()
 		time.Sleep(100 * time.Millisecond) // To prevent race condition caused by systray not being fully initialized and ignoring setIcon
 		for {
+			// Check features before status so menus respect disable flags before being enabled
+			s.checkAndUpdateFeatures()
+
 			err := s.updateStatus()
 			if err != nil {
 				log.Errorf("error while updating status: %v", err)
 			}
 
-			// Check features periodically to handle daemon restarts
-			s.checkAndUpdateFeatures()
-
 			time.Sleep(2 * time.Second)
 		}
 	}()
@@ -1299,6 +1303,16 @@ func (s *serviceClient) checkAndUpdateFeatures() {
 			s.mProfile.setEnabled(profilesEnabled)
 		}
 	}
+
+	// Update networks and exit node menus based on current features
+	s.networksEnabled = features == nil || !features.DisableNetworks
+	if s.networksEnabled && s.connected {
+		s.mNetworks.Enable()
+		s.mExitNode.Enable()
+	} else {
+		s.mNetworks.Disable()
+		s.mExitNode.Disable()
+	}
 }
 
 // getFeatures from the daemon to determine which features are enabled/disabled.