Add a function to disconnect any current VPN connection

diff --git a/src/frontends/android/src/org/strongswan/android/logic/VpnStateService.java b/src/frontends/android/src/org/strongswan/android/logic/VpnStateService.java
index 2e2bce5..1c14cb6 100644 (file)
--- a/src/frontends/android/src/org/strongswan/android/logic/VpnStateService.java
+++ b/src/frontends/android/src/org/strongswan/android/logic/VpnStateService.java
@@ -22,6 +22,7 @@ import java.util.concurrent.Callable;
 import org.strongswan.android.data.VpnProfile;
 
 import android.app.Service;
+import android.content.Context;
 import android.content.Intent;
 import android.os.Binder;
 import android.os.Handler;
@@ -146,6 +147,24 @@ public class VpnStateService extends Service
        }
 
        /**
+        * Disconnect any existing connection and shutdown the daemon, the
+        * VpnService is not stopped but it is reset so new connections can be
+        * started.
+        */
+       public void disconnect()
+       {
+               /* as soon as the TUN device is created by calling establish() on the
+                * VpnService.Builder object the system binds to the service and keeps
+                * bound until the file descriptor of the TUN device is closed.  thus
+                * calling stopService() here would not stop (destroy) the service yet,
+                * instead we call startService() with an empty Intent which shuts down
+                * the daemon (and closes the TUN device, if any) */
+               Context context = getApplicationContext();
+               Intent intent = new Intent(context, CharonVpnService.class);
+               context.startService(intent);
+       }
+
+       /**
         * Update state and notify all listeners about the change. By using a Handler
         * this is done from the main UI thread and not the initial reporter thread.
         * Also, in doing the actual state change from the main thread, listeners