Expose *ConnectionPadding

guardianproject · Nov 3, 2017 · 6e4b700 · 6e4b700
1 parent 71e3464
commit 6e4b700
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Showing 4 changed files with 32 additions and 0 deletions.
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
@@ -384,4 +384,8 @@
   <string name="pref_isolate_dest_summary">Use a different circuit for each destination address</string>
   <string name="no_transproxy_warning_short">WARNING: Transproxying no longer supported</string>
   <string name="no_transproxy_warning">WARNING: Transparent proxying not supported. Use Orbot Apps VPN instead.</string>
+  <string name="pref_connection_padding">Connection padding</string>
+  <string name="pref_connection_padding_summary">Always enables connection padding to defend against some forms of traffic analysis. Default: auto</string>
+  <string name="pref_reduced_connection_padding">Reduced connection padding</string>
+  <string name="pref_reduced_connection_padding_summary">Closes relay connections sooner and sends less padding packets to reduce data and battery usage</string>
 </resources>
diff --git a/app/src/main/res/xml/preferences.xml b/app/src/main/res/xml/preferences.xml
@@ -166,6 +166,22 @@ android:summary="@string/pref_isolate_dest_summary"
 android:enabled="true"></CheckBoxPreference>
 </PreferenceCategory>
 
+<PreferenceCategory android:title="ConnectionPadding">
+<CheckBoxPreference
+android:key="pref_connection_padding"
+android:defaultValue="false"
+android:title="@string/pref_connection_padding"
+android:summary="@string/pref_connection_padding_summary"
+android:enabled="true"></CheckBoxPreference>
+<CheckBoxPreference
+android:key="pref_reduced_connection_padding"
+android:defaultValue="true"
+android:title="@string/pref_reduced_connection_padding"
+android:summary="@string/pref_reduced_connection_padding_summary"
+android:enabled="true"></CheckBoxPreference>
+</PreferenceCategory>
+
+
 <PreferenceCategory android:title="@string/pref_proxy_title">
 <EditTextPreference android:key="pref_proxy_type"
 android:title="@string/pref_proxy_type_title"

diff --git a/orbotservice/src/main/java/org/torproject/android/service/OrbotConstants.java b/orbotservice/src/main/java/org/torproject/android/service/OrbotConstants.java
@@ -36,4 +36,7 @@ public interface OrbotConstants {
 
 	public final static String PREF_ISOLATE_DEST = "pref_isolate_dest";
 
+	public final static String PREF_CONNECTION_PADDING = "pref_connection_padding";
+	public final static String PREF_REDUCED_CONNECTION_PADDING = "pref_reduced_connection_padding";
+
 }
diff --git a/orbotservice/src/main/java/org/torproject/android/service/TorService.java b/orbotservice/src/main/java/org/torproject/android/service/TorService.java
@@ -672,6 +672,15 @@ private boolean updateTorConfigFile () throws FileNotFoundException, IOException
         extraLines.append("TestSocks 0").append('\n');
         extraLines.append("WarnUnsafeSocks 1").append('\n');
 
+	if(prefs.getBoolean(OrbotConstants.PREF_CONNECTION_PADDING, false))
+	{
+		extraLines.append("ConnectionPadding 1").append('\n');
+	}
+	if(prefs.getBoolean(OrbotConstants.PREF_REDUCED_CONNECTION_PADDING, true))
+	{
+		extraLines.append("ReducedConnectionPadding 1").append('\n');
+	}
+
         String transPort = prefs.getString("pref_transport", TorServiceConstants.TOR_TRANSPROXY_PORT_DEFAULT+"");
         String dnsPort = prefs.getString("pref_dnsport", TorServiceConstants.TOR_DNS_PORT_DEFAULT+"");