Merge "Disconnect VPN when the underlying network is lost" am: f55958fcfd am: a03e3f9a75 am: b883281ecc am: ceecf64cde

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2222603

Change-Id: I77809922772b3ec858d6b602d75a82a3c582c6a5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

services/core/java/com/android/server/connectivity/Vpn.java

@@ -3210,10 +3210,7 @@ public class Vpn {
                 return;
             }
 
-            if (mSession != null && mMobikeEnabled) {
+            Log.d(TAG, "Schedule a delay handleSessionLost for losing network "
-                Log.d(
-                        TAG,
-                        "IKE Session has mobility. Delay handleSessionLost for losing network "
                             + network
                             + " on session with token "
                             + mCurrentToken);
@@ -3226,7 +3223,16 @@ public class Vpn {
                     mExecutor.schedule(
                             () -> {
                                 if (isActiveToken(token)) {
-                                        handleSessionLost(null /* exception */, network);
+                                    handleSessionLost(new IkeNetworkLostException(network),
+                                            network);
+
+                                    synchronized (Vpn.this) {
+                                        // Ignore stale runner.
+                                        if (mVpnRunner != this) return;
+
+                                        updateState(DetailedState.DISCONNECTED,
+                                                "Network lost");
+                                    }
                                 } else {
                                     Log.d(
                                             TAG,
@@ -3241,10 +3247,7 @@ public class Vpn {
                             },
                             NETWORK_LOST_TIMEOUT_MS,
                             TimeUnit.MILLISECONDS);
-            } else {
+
-                Log.d(TAG, "Call handleSessionLost for losing network " + network);
-                handleSessionLost(null /* exception */, network);
-            }
         }
 
         private void cancelHandleNetworkLostTimeout() {