Apply DISALLOW_CONFIG_VPN restriction to VPN.

Bug: 16008760
Change-Id: I299d5f32d9b09c3abcc32f3e889a0187880621df
diff --git a/services/core/java/com/android/server/connectivity/Vpn.java b/services/core/java/com/android/server/connectivity/Vpn.java
index cb1dfe4..ad7c0aa 100644
--- a/services/core/java/com/android/server/connectivity/Vpn.java
+++ b/services/core/java/com/android/server/connectivity/Vpn.java
@@ -329,7 +329,7 @@
         try {
             // Restricted users are not allowed to create VPNs, they are tied to Owner
             UserInfo user = mgr.getUserInfo(mUserId);
-            if (user.isRestricted()) {
+            if (user.isRestricted() || mgr.hasUserRestriction(UserManager.DISALLOW_CONFIG_VPN)) {
                 throw new SecurityException("Restricted users cannot establish VPNs");
             }
 
@@ -722,6 +722,11 @@
         if (!keyStore.isUnlocked()) {
             throw new IllegalStateException("KeyStore isn't unlocked");
         }
+        UserManager mgr = UserManager.get(mContext);
+        UserInfo user = mgr.getUserInfo(mUserId);
+        if (user.isRestricted() || mgr.hasUserRestriction(UserManager.DISALLOW_CONFIG_VPN)) {
+            throw new SecurityException("Restricted users cannot establish VPNs");
+        }
 
         final RouteInfo ipv4DefaultRoute = findIPv4DefaultRoute(egress);
         final String gateway = ipv4DefaultRoute.getGateway().getHostAddress();