Fix UDP forward

src/main/AndroidManifest.xml

@@ -1,7 +1,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
           xmlns:tools="http://schemas.android.com/tools" package="com.github.shadowsocks"
-          android:versionCode="143"
-          android:versionName="3.0.1">
+          android:versionCode="144"
+          android:versionName="3.0.2">
 
     <uses-permission android:name="android.permission.INTERNET"/>
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

src/main/scala/com/github/shadowsocks/ShadowsocksVpnService.scala

@@ -182,25 +182,25 @@ class ShadowsocksVpnService extends VpnService with BaseService {
   /** Called when the activity is first created. */
   def handleConnection: Boolean = {
     
+    val fd = startVpn()
+    if (!sendFd(fd)) return false
+
+    if (profile.kcp) {
+      startKcptunDaemon()
+    }
+
+    startShadowsocksDaemon()
+
+    if (profile.udpdns && profile.kcp) {
+      startShadowsocksUDPDaemon()
+    }
+
     if (!profile.udpdns) {
       startDnsDaemon()
       startDnsTunnel()
     }
 
-    startShadowsocksDaemon()
-
-    if (profile.udpdns) {
-      startShadowsocksUDPDaemon()
-    }
-
-    val fd = startVpn()
-    val ret = sendFd(fd)
-
-    if (ret && profile.kcp) {
-      startKcptunDaemon()
-    }
-
-    ret
+    true
   }
 
   def startKcptunDaemon() {
@@ -274,6 +274,8 @@ class ShadowsocksVpnService extends VpnService with BaseService {
 
     if (profile.auth) cmd += "-A"
 
+    if (profile.udpdns && !profile.kcp) cmd += "-u"
+
     if (profile.route != Route.ALL) {
       cmd += "--acl"
       cmd += (getApplicationInfo.dataDir + "/acl.list")