Move factoryReset to service and protect.

bug:16161518
Change-Id: I02d1bbae1887c62ee426e6f03e8bc1f18c6666bf

core/java/android/net/ConnectivityManager.java

@@ -40,7 +40,6 @@ import android.telephony.SubscriptionManager;
 import android.util.ArrayMap;
 import android.util.Log;
 
-import com.android.internal.net.VpnConfig;
 import com.android.internal.telephony.ITelephony;
 import com.android.internal.telephony.PhoneConstants;
 import com.android.internal.util.Protocol;
@@ -2515,30 +2514,9 @@ public class ConnectivityManager {
      * @hide
      */
     public void factoryReset() {
-        // Turn airplane mode off
-        setAirplaneMode(false);
-
-        // Untether
-        for (String tether : getTetheredIfaces()) {
-            untether(tether);
-        }
-
-        // Turn VPN off
         try {
-            VpnConfig vpnConfig = mService.getVpnConfig();
+            mService.factoryReset();
-            if (vpnConfig != null) {
-                if (vpnConfig.legacy) {
-                    mService.prepareVpn(VpnConfig.LEGACY_VPN, VpnConfig.LEGACY_VPN);
-                } else {
-                    // Prevent this app from initiating VPN connections in the future without
-                    // user intervention.
-                    mService.setVpnPackageAuthorization(false);
-
-                    mService.prepareVpn(vpnConfig.user, VpnConfig.LEGACY_VPN);
-                }
-            }
         } catch (RemoteException e) {
-            // Well, we tried
         }
     }
 

core/java/android/net/IConnectivityManager.aidl

@@ -164,4 +164,6 @@ interface IConnectivityManager
     boolean addVpnAddress(String address, int prefixLength);
     boolean removeVpnAddress(String address, int prefixLength);
     boolean setUnderlyingNetworksForVpn(in Network[] networks);
+
+    void factoryReset();
 }

services/core/java/com/android/server/ConnectivityService.java

@@ -4444,4 +4444,30 @@ public class ConnectivityService extends IConnectivityManager.Stub
         }
         return success;
     }
+
+    @Override
+    public void factoryReset() {
+        enforceConnectivityInternalPermission();
+        // Turn airplane mode off
+        setAirplaneMode(false);
+
+        // Untether
+        for (String tether : getTetheredIfaces()) {
+            untether(tether);
+        }
+
+        // Turn VPN off
+        VpnConfig vpnConfig = getVpnConfig();
+        if (vpnConfig != null) {
+            if (vpnConfig.legacy) {
+                prepareVpn(VpnConfig.LEGACY_VPN, VpnConfig.LEGACY_VPN);
+            } else {
+                // Prevent this app from initiating VPN connections in the future without
+                // user intervention.
+                setVpnPackageAuthorization(false);
+
+                prepareVpn(vpnConfig.user, VpnConfig.LEGACY_VPN);
+            }
+        }
+    }
 }