From 45dbfe7c3e30ea5af226213b7b1ebfd5f34af0cd Mon Sep 17 00:00:00 2001
From: "Koichi, Sugimoto" <koichi.x.sugimoto@sonymobile.com>
Date: Wed, 27 Jan 2016 18:48:58 +0900
Subject: [PATCH] Disable always-on VPN in factoryReset

When network setting reset is started while always-on VPN is enabled,
application crash occurs with IllegalStateException in prepareVpn().

Therefore, it's necessary to also disable always-on VPN in factoryReset
before prepareVpn() when turning off VPN.

Bug: 29030858
Change-Id: I08c5406717dd7937d197c2e934a56d037477aafc
---
 .../java/com/android/server/ConnectivityService.java | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index b383633b06..bdcce221fc 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -5206,6 +5206,18 @@ public class ConnectivityService extends IConnectivityManager.Stub
                 }
             }
 
+            // Turn Always-on VPN off
+            if (mLockdownEnabled && userId == UserHandle.USER_SYSTEM) {
+                final long ident = Binder.clearCallingIdentity();
+                try {
+                    mKeyStore.delete(Credentials.LOCKDOWN_VPN);
+                    mLockdownEnabled = false;
+                    setLockdownTracker(null);
+                } finally {
+                    Binder.restoreCallingIdentity(ident);
+                }
+            }
+
             // Turn VPN off
             VpnConfig vpnConfig = getVpnConfig(userId);
             if (vpnConfig != null) {