1 files changed, 13 insertions, 0 deletions
diff --git a/src/de/blinkt/openvpn/GeneralSettings.java b/src/de/blinkt/openvpn/GeneralSettings.java
index 24bf2616..b9c412c0 100644
--- a/src/de/blinkt/openvpn/GeneralSettings.java
+++ b/src/de/blinkt/openvpn/GeneralSettings.java
@@ -1,5 +1,8 @@
 package de.blinkt.openvpn;
+import java.io.File;
+
 import android.os.Bundle;
+import android.preference.Preference;
 import android.preference.PreferenceFragment;
 
 public class GeneralSettings extends PreferenceFragment {
@@ -11,6 +14,16 @@ public class GeneralSettings extends PreferenceFragment {
 
 			// Load the preferences from an XML resource
 			addPreferencesFromResource(R.xml.general_settings);
+			Preference loadtun = findPreference("loadTunModule");
+			if(!isTunModuleAvailable())
+				loadtun.setEnabled(false);
+		}
+
+		private boolean isTunModuleAvailable() {
+			// Check if the tun module exists on the file system
+			if(new File("/system/lib/modules/tun.ko").length() > 10)
+				return true;
+			return false;
 		}