diff --git a/service/src/com/android/server/ConnectivityService.java b/service/src/com/android/server/ConnectivityService.java
index a12f3cd..8abe564 100755
--- a/service/src/com/android/server/ConnectivityService.java
+++ b/service/src/com/android/server/ConnectivityService.java
@@ -7487,6 +7487,11 @@
         Objects.requireNonNull(score);
         Objects.requireNonNull(caps);
         Objects.requireNonNull(callback);
+        if (caps.hasTransport(TRANSPORT_TEST)) {
+            enforceAnyPermissionOf(mContext, Manifest.permission.MANAGE_TEST_NETWORKS);
+        } else {
+            enforceNetworkFactoryPermission();
+        }
         final boolean yieldToBadWiFi = caps.hasTransport(TRANSPORT_CELLULAR) && !avoidBadWifi();
         final NetworkOffer offer = new NetworkOffer(
                 FullScore.makeProspectiveScore(score, caps, yieldToBadWiFi),