diff --git a/core/java/android/net/ConnectivityManager.java b/core/java/android/net/ConnectivityManager.java
index 70c8750..4eecfa9 100644
--- a/core/java/android/net/ConnectivityManager.java
+++ b/core/java/android/net/ConnectivityManager.java
@@ -361,11 +361,17 @@
      */
     public static final int TYPE_MOBILE_IA = 14;
 
-    /** {@hide} */
-    public static final int MAX_RADIO_TYPE   = TYPE_MOBILE_IA;
+    /**
+     * The network that uses proxy to achieve connectivity.
+     * {@hide}
+     */
+    public static final int TYPE_PROXY = 16;
 
     /** {@hide} */
-    public static final int MAX_NETWORK_TYPE = TYPE_MOBILE_IA;
+    public static final int MAX_RADIO_TYPE   = TYPE_PROXY;
+
+    /** {@hide} */
+    public static final int MAX_NETWORK_TYPE = TYPE_PROXY;
 
     /**
      * If you want to set the default network preference,you can directly
@@ -446,6 +452,8 @@
                 return "WIFI_P2P";
             case TYPE_MOBILE_IA:
                 return "MOBILE_IA";
+            case TYPE_PROXY:
+                return "PROXY";
             default:
                 return Integer.toString(type);
         }
diff --git a/services/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
similarity index 99%
rename from services/java/com/android/server/ConnectivityService.java
rename to services/core/java/com/android/server/ConnectivityService.java
index b7a1a55..57ee031 100644
--- a/services/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -26,6 +26,7 @@
 import static android.net.ConnectivityManager.TYPE_MOBILE;
 import static android.net.ConnectivityManager.TYPE_WIFI;
 import static android.net.ConnectivityManager.TYPE_WIMAX;
+import static android.net.ConnectivityManager.TYPE_PROXY;
 import static android.net.ConnectivityManager.getNetworkTypeName;
 import static android.net.ConnectivityManager.isNetworkTypeValid;
 import static android.net.NetworkPolicyManager.RULE_ALLOW_ALL;
@@ -72,6 +73,7 @@
 import android.net.NetworkStateTracker;
 import android.net.NetworkUtils;
 import android.net.Proxy;
+import android.net.ProxyDataTracker;
 import android.net.ProxyProperties;
 import android.net.RouteInfo;
 import android.net.SamplingDataTracker;
@@ -736,6 +738,8 @@
                     return makeWimaxStateTracker(mContext, mTrackerHandler);
                 case TYPE_ETHERNET:
                     return EthernetDataTracker.getInstance();
+                case TYPE_PROXY:
+                    return new ProxyDataTracker();
                 default:
                     throw new IllegalArgumentException(
                             "Trying to create a NetworkStateTracker for an unknown radio type: "
diff --git a/services/java/com/android/server/connectivity/Nat464Xlat.java b/services/core/java/com/android/server/connectivity/Nat464Xlat.java
similarity index 100%
rename from services/java/com/android/server/connectivity/Nat464Xlat.java
rename to services/core/java/com/android/server/connectivity/Nat464Xlat.java
diff --git a/tests/CoreTests/android/core/NsdServiceInfoTest.java b/tests/CoreTests/android/core/NsdServiceInfoTest.java
new file mode 100644
index 0000000..5bf0167
--- /dev/null
+++ b/tests/CoreTests/android/core/NsdServiceInfoTest.java
@@ -0,0 +1,163 @@
+package android.core;
+
+import android.test.AndroidTestCase;
+
+import android.os.Bundle;
+import android.os.Parcel;
+import android.os.StrictMode;
+import android.net.nsd.NsdServiceInfo;
+import android.util.Log;
+
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+
+
+public class NsdServiceInfoTest extends AndroidTestCase {
+
+    public final static InetAddress LOCALHOST;
+    static {
+        // Because test.
+        StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
+        StrictMode.setThreadPolicy(policy);
+
+        InetAddress _host = null;
+        try {
+            _host = InetAddress.getLocalHost();
+        } catch (UnknownHostException e) { }
+        LOCALHOST = _host;
+    }
+
+    public void testLimits() throws Exception {
+        NsdServiceInfo info = new NsdServiceInfo();
+
+        // Non-ASCII keys.
+        boolean exceptionThrown = false;
+        try {
+            info.setAttribute("猫", "meow");
+        } catch (IllegalArgumentException e) {
+            exceptionThrown = true;
+        }
+        assertTrue(exceptionThrown);
+        assertEmptyServiceInfo(info);
+
+        // ASCII keys with '=' character.
+        exceptionThrown = false;
+        try {
+            info.setAttribute("kitten=", "meow");
+        } catch (IllegalArgumentException e) {
+            exceptionThrown = true;
+        }
+        assertTrue(exceptionThrown);
+        assertEmptyServiceInfo(info);
+
+        // Single key + value length too long.
+        exceptionThrown = false;
+        try {
+            String longValue = "loooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo" +
+                    "oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo" +
+                    "oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo" +
+                    "ooooooooooooooooooooooooooooong";  // 248 characters.
+            info.setAttribute("longcat", longValue);  // Key + value == 255 characters.
+        } catch (IllegalArgumentException e) {
+            exceptionThrown = true;
+        }
+        assertTrue(exceptionThrown);
+        assertEmptyServiceInfo(info);
+
+        // Total TXT record length too long.
+        exceptionThrown = false;
+        int recordsAdded = 0;
+        try {
+            for (int i = 100; i < 300; ++i) {
+                // 6 char key + 5 char value + 2 bytes overhead = 13 byte record length.
+                String key = String.format("key%d", i);
+                info.setAttribute(key, "12345");
+                recordsAdded++;
+            }
+        } catch (IllegalArgumentException e) {
+            exceptionThrown = true;
+        }
+        assertTrue(exceptionThrown);
+        assertTrue(100 == recordsAdded);
+        assertTrue(info.getTxtRecord().length == 1300);
+    }
+
+    public void testParcel() throws Exception {
+        NsdServiceInfo emptyInfo = new NsdServiceInfo();
+        checkParcelable(emptyInfo);
+
+        NsdServiceInfo fullInfo = new NsdServiceInfo();
+        fullInfo.setServiceName("kitten");
+        fullInfo.setServiceType("_kitten._tcp");
+        fullInfo.setPort(4242);
+        fullInfo.setHost(LOCALHOST);
+        checkParcelable(fullInfo);
+
+        NsdServiceInfo noHostInfo = new NsdServiceInfo();
+        noHostInfo.setServiceName("kitten");
+        noHostInfo.setServiceType("_kitten._tcp");
+        noHostInfo.setPort(4242);
+        checkParcelable(noHostInfo);
+
+        NsdServiceInfo attributedInfo = new NsdServiceInfo();
+        attributedInfo.setServiceName("kitten");
+        attributedInfo.setServiceType("_kitten._tcp");
+        attributedInfo.setPort(4242);
+        attributedInfo.setHost(LOCALHOST);
+        attributedInfo.setAttribute("color", "pink");
+        attributedInfo.setAttribute("sound", (new String("にゃあ")).getBytes("UTF-8"));
+        attributedInfo.setAttribute("adorable", (String) null);
+        attributedInfo.setAttribute("sticky", "yes");
+        attributedInfo.setAttribute("siblings", new byte[] {});
+        attributedInfo.setAttribute("edge cases", new byte[] {0, -1, 127, -128});
+        attributedInfo.removeAttribute("sticky");
+        checkParcelable(attributedInfo);
+
+        // Sanity check that we actually wrote attributes to attributedInfo.
+        assertTrue(attributedInfo.getAttributes().keySet().contains("adorable"));
+        String sound = new String(attributedInfo.getAttributes().get("sound"), "UTF-8");
+        assertTrue(sound.equals("にゃあ"));
+        byte[] edgeCases = attributedInfo.getAttributes().get("edge cases");
+        assertTrue(Arrays.equals(edgeCases, new byte[] {0, -1, 127, -128}));
+        assertFalse(attributedInfo.getAttributes().keySet().contains("sticky"));
+    }
+
+    public void checkParcelable(NsdServiceInfo original) {
+        // Write to parcel.
+        Parcel p = Parcel.obtain();
+        Bundle writer = new Bundle();
+        writer.putParcelable("test_info", original);
+        writer.writeToParcel(p, 0);
+
+        // Extract from parcel.
+        p.setDataPosition(0);
+        Bundle reader = p.readBundle();
+        reader.setClassLoader(NsdServiceInfo.class.getClassLoader());
+        NsdServiceInfo result = reader.getParcelable("test_info");
+
+        // Assert equality of base fields.
+        assertEquality(original.getServiceName(), result.getServiceName());
+        assertEquality(original.getServiceType(), result.getServiceType());
+        assertEquality(original.getHost(), result.getHost());
+        assertTrue(original.getPort() == result.getPort());
+
+        // Assert equality of attribute map.
+        Map<String, byte[]> originalMap = original.getAttributes();
+        Map<String, byte[]> resultMap = result.getAttributes();
+        assertEquality(originalMap.keySet(), resultMap.keySet());
+        for (String key : originalMap.keySet()) {
+            assertTrue(Arrays.equals(originalMap.get(key), resultMap.get(key)));
+        }
+    }
+
+    public void assertEquality(Object expected, Object result) {
+        assertTrue(expected == result || expected.equals(result));
+    }
+
+    public void assertEmptyServiceInfo(NsdServiceInfo shouldBeEmpty) {
+        assertTrue(null == shouldBeEmpty.getTxtRecord());
+    }
+}