bypass dns queries for popular sites in china

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

@@ -118,7 +118,7 @@ class ShadowsocksNatService extends Service with BaseService {
         Path.BASE + "ss-local.pid")
         .format(config.proxy, config.remotePort, 8153, config.sitekey, config.encMethod)
     } else {
-      val conf = ConfigUtils.PDNSD.format("127.0.0.1")
+      val conf = ConfigUtils.PDNSD.format("127.0.0.1", getString(R.string.exclude));
       ConfigUtils.printToFile(new File(Path.BASE + "pdnsd.conf"))(p => {
          p.println(conf)
       })
@@ -302,10 +302,17 @@ class ShadowsocksNatService extends Service with BaseService {
     val http_sb = new ArrayBuffer[String]
     init_sb.append(Utils.getIptables + " -t nat -F OUTPUT")
     val cmd_bypass = Utils.getIptables + CMD_IPTABLES_RETURN
+
+    // Bypass proxy servers
     if (!InetAddressUtils.isIPv6Address(config.proxy.toUpperCase)) {
-      init_sb.append(cmd_bypass.replace("-d 0.0.0.0", "-d " + config.proxy))
+      init_sb.append(cmd_bypass.replace("0.0.0.0", config.proxy))
     }
+
+    // Bypass DNS servers
     init_sb.append(cmd_bypass.replace("0.0.0.0", "127.0.0.1"))
+    init_sb.append(cmd_bypass.replace("0.0.0.0", "114.114.114.114"))
+    init_sb.append(cmd_bypass.replace("0.0.0.0", "114.114.115.115"))
+
     if (hasRedirectSupport) {
       init_sb
         .append(Utils.getIptables + " -t nat -A OUTPUT -p udp --dport 53 -j REDIRECT --to "

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

@@ -91,7 +91,7 @@ class ShadowsocksVpnService extends VpnService with BaseService {
         Path.BASE + "ss-tunnel.pid")
         .format(config.proxy, config.remotePort, 8153, config.sitekey, config.encMethod)
     } else {
-      val conf = ConfigUtils.PDNSD.format("0.0.0.0")
+      val conf = ConfigUtils.PDNSD.format("0.0.0.0", getString(R.string.exclude))
       ConfigUtils.printToFile(new File(Path.BASE + "pdnsd.conf"))(p => {
         p.println(conf)
       })
@@ -113,9 +113,12 @@ class ShadowsocksVpnService extends VpnService with BaseService {
     version
   }
 
-  def startVpn() {
+  def isByass(info: SubnetUtils.SubnetInfo): Boolean = {
+     info.isInRange(config.proxy) || info.isInRange("114.114.114.114")
+       || info.isInRange("114.114.115.115")
+  }
 
-    val proxy_address = config.proxy
+  def startVpn() {
 
     val builder = new Builder()
     builder
@@ -136,7 +139,7 @@ class ShadowsocksVpnService extends VpnService with BaseService {
       }
       gfwList.foreach(cidr => {
         val net = new SubnetUtils(cidr).getInfo
-        if (!net.isInRange(proxy_address)) {
+        if (!isByass(net)) {
           val addr = cidr.split('/')
           builder.addRoute(addr(0), addr(1).toInt)
         }
@@ -148,7 +151,7 @@ class ShadowsocksVpnService extends VpnService with BaseService {
           val cidr = addr + "/8"
           val net = new SubnetUtils(cidr).getInfo
 
-          if (!net.isInRange(proxy_address)) {
+          if (!isByass(net)) {
             if (!InetAddress.getByName(addr).isSiteLocalAddress) {
               builder.addRoute(addr, 8)
             }
@@ -157,7 +160,7 @@ class ShadowsocksVpnService extends VpnService with BaseService {
               val subAddr = i.toString + "." + j.toString + ".0.0"
               val subCidr = subAddr + "/16"
               val subNet = new SubnetUtils(subCidr).getInfo
-              if (!subNet.isInRange(proxy_address)) {
+              if (!isByass(subNet)) {
                 if (!InetAddress.getByName(subAddr).isSiteLocalAddress) {
                   builder.addRoute(subAddr, 16)
                 }

src/main/scala/com/github/shadowsocks/utils/ConfigUtils.scala

@@ -78,8 +78,15 @@ object ConfigUtils {
       |}
       |
       |server {
-      | label = "root-servers";
-      | ip = 8.8.8.8, 8.8.4.4, 208.67.222.222, 208.67.220.220;
+      | label = "google-servers";
+      | ip = 8.8.8.8, 8.8.4.4;
+	  | exclude = %s;
+      | timeout = 5;
+      |}
+	  |
+      |server {
+      | label = "china-servers";
+      | ip = 114.114.114.114, 114.114.115.115;
       | timeout = 5;
       |}
       |
@@ -156,4 +163,4 @@ object ConfigUtils {
     new Config(isGlobalProxy, isGFWList, isBypassApps, isTrafficStat, isUdpDns, profileName, proxy,
       sitekey, encMethod, proxiedAppString, remotePort, localPort)
   }
-}
+}