[client] Add skipNetworkMapUpdate field to SyncResponse for conditional updates

client/internal/engine.go

@@ -453,8 +453,6 @@ func (e *Engine) Start(netbirdConfig *mgmProto.NetbirdConfig, mgmtURL *url.URL)
 		return fmt.Errorf("up wg interface: %w", err)
 	}
 
-
-
 	// if inbound conns are blocked there is no need to create the ACL manager
 	if e.firewall != nil && !e.config.BlockInbound {
 		e.acl = acl.NewDefaultManager(e.firewall)
@@ -760,7 +758,7 @@ func (e *Engine) handleSync(update *mgmProto.SyncResponse) error {
 	}
 
 	nm := update.GetNetworkMap()
-	if nm == nil {
+	if nm == nil || update.SkipNetworkMapUpdate {
 		return nil
 	}
 

shared/management/proto/management.proto

@@ -87,6 +87,9 @@ message SyncResponse {
 
   // Posture checks to be evaluated by client
   repeated Checks Checks = 6;
+
+  // Indicates whether the client should skip updating the network map
+  bool skipNetworkMapUpdate = 7;
 }
 
 message  SyncMetaRequest {