Support multiple Vpn ManageDialogs

Move away from storing the configs in the Intent to prevent issues with
PendingIntents and multiple configs.

The Dialog now queries ConnectivityService for the configuration to
display in the management dialog.

Change-Id: I0e0ef52db840152914d117a24f776d8106e836ff
diff --git a/services/java/com/android/server/ConnectivityService.java b/services/java/com/android/server/ConnectivityService.java
index 476a6fd..3a4b7e3 100644
--- a/services/java/com/android/server/ConnectivityService.java
+++ b/services/java/com/android/server/ConnectivityService.java
@@ -3426,6 +3426,20 @@
     }
 
     /**
+     * Returns the information of the ongoing VPN. This method is used by VpnDialogs and
+     * not available in ConnectivityManager.
+     * Permissions are checked in Vpn class.
+     * @hide
+     */
+    @Override
+    public VpnConfig getVpnConfig() {
+        int user = UserHandle.getUserId(Binder.getCallingUid());
+        synchronized(mVpns) {
+            return mVpns.get(user).getVpnConfig();
+        }
+    }
+
+    /**
      * Callback for VPN subsystem. Currently VPN is not adapted to the service
      * through NetworkStateTracker since it works differently. For example, it
      * needs to override DNS servers but never takes the default routes. It
diff --git a/services/java/com/android/server/connectivity/Vpn.java b/services/java/com/android/server/connectivity/Vpn.java
index 3a2391f..8cc5b4f 100644
--- a/services/java/com/android/server/connectivity/Vpn.java
+++ b/services/java/com/android/server/connectivity/Vpn.java
@@ -519,6 +519,14 @@
         }
     }
 
+    /**
+     * Return the configuration of the currently running VPN.
+     */
+    public VpnConfig getVpnConfig() {
+        enforceControlPermission();
+        return mConfig;
+    }
+
     @Deprecated
     public synchronized void interfaceStatusChanged(String iface, boolean up) {
         try {
@@ -610,7 +618,7 @@
 
     private void showNotification(String label, Bitmap icon, int user) {
         if (!mEnableNotif) return;
-        mStatusIntent = VpnConfig.getIntentForStatusPanel(mContext, mConfig);
+        mStatusIntent = VpnConfig.getIntentForStatusPanel(mContext);
 
         NotificationManager nm = (NotificationManager)
                 mContext.getSystemService(Context.NOTIFICATION_SERVICE);