diff --git a/core/java/android/net/LinkProperties.java b/core/java/android/net/LinkProperties.java
index 1bb0fbb..f527f77 100644
--- a/core/java/android/net/LinkProperties.java
+++ b/core/java/android/net/LinkProperties.java
@@ -18,14 +18,13 @@
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
-import android.net.ProxyInfo;
-import android.os.Parcelable;
 import android.os.Parcel;
+import android.os.Parcelable;
 import android.text.TextUtils;
 
-import java.net.InetAddress;
 import java.net.Inet4Address;
 import java.net.Inet6Address;
+import java.net.InetAddress;
 import java.net.UnknownHostException;
 import java.util.ArrayList;
 import java.util.Collection;
@@ -504,11 +503,22 @@
     }
 
     /**
+     * Make sure this LinkProperties instance contains routes that cover the local subnet
+     * of its link addresses. Add any route that is missing.
+     * @hide
+     */
+    public void ensureDirectlyConnectedRoutes() {
+        for (LinkAddress addr: mLinkAddresses) {
+            addRoute(new RouteInfo(addr, null, mIfaceName));
+        }
+    }
+
+    /**
      * Returns all the routes on this link and all the links stacked above it.
      * @hide
      */
     public List<RouteInfo> getAllRoutes() {
-        List<RouteInfo> routes = new ArrayList();
+        List<RouteInfo> routes = new ArrayList<>();
         routes.addAll(mRoutes);
         for (LinkProperties stacked: mStackedLinks.values()) {
             routes.addAll(stacked.getAllRoutes());
diff --git a/core/tests/coretests/src/android/net/LinkPropertiesTest.java b/core/tests/coretests/src/android/net/LinkPropertiesTest.java
index d5f6321..9686dd9 100644
--- a/core/tests/coretests/src/android/net/LinkPropertiesTest.java
+++ b/core/tests/coretests/src/android/net/LinkPropertiesTest.java
@@ -24,10 +24,15 @@
 import android.system.OsConstants;
 import android.test.suitebuilder.annotation.SmallTest;
 import android.test.suitebuilder.annotation.Suppress;
+import android.util.ArraySet;
+
 import junit.framework.TestCase;
 
 import java.net.InetAddress;
-import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Set;
 
 
 public class LinkPropertiesTest extends TestCase {
@@ -678,4 +683,76 @@
         stacked.addRoute(new RouteInfo((IpPrefix) null, stackedAddress));
         assertTrue(v6lp.isReachable(DNS1));
     }
+
+    @SmallTest
+    public void testLinkPropertiesEnsureDirectlyConnectedRoutes() {
+        // IPv4 case: no route added initially
+        LinkProperties rmnet0 = new LinkProperties();
+        rmnet0.setInterfaceName("rmnet0");
+        rmnet0.addLinkAddress(new LinkAddress("10.0.0.2/8"));
+        RouteInfo directRoute0 = new RouteInfo(new IpPrefix("10.0.0.0/8"), null,
+                rmnet0.getInterfaceName());
+
+        // Since no routes is added explicitly, getAllRoutes() should return empty.
+        assertTrue(rmnet0.getAllRoutes().isEmpty());
+        rmnet0.ensureDirectlyConnectedRoutes();
+        // ensureDirectlyConnectedRoutes() should have added the missing local route.
+        assertEqualRoutes(Collections.singletonList(directRoute0), rmnet0.getAllRoutes());
+
+        // IPv4 case: both direct and default routes added initially
+        LinkProperties rmnet1 = new LinkProperties();
+        rmnet1.setInterfaceName("rmnet1");
+        rmnet1.addLinkAddress(new LinkAddress("10.0.0.3/8"));
+        RouteInfo defaultRoute1 = new RouteInfo((IpPrefix) null,
+                NetworkUtils.numericToInetAddress("10.0.0.1"), rmnet1.getInterfaceName());
+        RouteInfo directRoute1 = new RouteInfo(new IpPrefix("10.0.0.0/8"), null,
+                rmnet1.getInterfaceName());
+        rmnet1.addRoute(defaultRoute1);
+        rmnet1.addRoute(directRoute1);
+
+        // Check added routes
+        assertEqualRoutes(Arrays.asList(defaultRoute1, directRoute1), rmnet1.getAllRoutes());
+        // ensureDirectlyConnectedRoutes() shouldn't change the routes since direct connected
+        // route is already part of the configuration.
+        rmnet1.ensureDirectlyConnectedRoutes();
+        assertEqualRoutes(Arrays.asList(defaultRoute1, directRoute1), rmnet1.getAllRoutes());
+
+        // IPv6 case: only default routes added initially
+        LinkProperties rmnet2 = new LinkProperties();
+        rmnet2.setInterfaceName("rmnet2");
+        rmnet2.addLinkAddress(new LinkAddress("fe80::cafe/64"));
+        rmnet2.addLinkAddress(new LinkAddress("2001:db8::2/64"));
+        RouteInfo defaultRoute2 = new RouteInfo((IpPrefix) null,
+                NetworkUtils.numericToInetAddress("2001:db8::1"), rmnet2.getInterfaceName());
+        RouteInfo directRoute2 = new RouteInfo(new IpPrefix("2001:db8::/64"), null,
+                rmnet2.getInterfaceName());
+        RouteInfo linkLocalRoute2 = new RouteInfo(new IpPrefix("fe80::/64"), null,
+                rmnet2.getInterfaceName());
+        rmnet2.addRoute(defaultRoute2);
+
+        assertEqualRoutes(Arrays.asList(defaultRoute2), rmnet2.getAllRoutes());
+        rmnet2.ensureDirectlyConnectedRoutes();
+        assertEqualRoutes(Arrays.asList(defaultRoute2, directRoute2, linkLocalRoute2),
+                rmnet2.getAllRoutes());
+
+        // Corner case: no interface name
+        LinkProperties rmnet3 = new LinkProperties();
+        rmnet3.addLinkAddress(new LinkAddress("192.168.0.2/24"));
+        RouteInfo directRoute3 = new RouteInfo(new IpPrefix("192.168.0.0/24"), null,
+                rmnet3.getInterfaceName());
+
+        assertTrue(rmnet3.getAllRoutes().isEmpty());
+        rmnet3.ensureDirectlyConnectedRoutes();
+        assertEqualRoutes(Collections.singletonList(directRoute3), rmnet3.getAllRoutes());
+
+    }
+
+    private void assertEqualRoutes(Collection<RouteInfo> expected, Collection<RouteInfo> actual) {
+        Set<RouteInfo> expectedSet = new ArraySet<>(expected);
+        Set<RouteInfo> actualSet = new ArraySet<>(actual);
+        // Duplicated entries in actual routes are considered failures
+        assertEquals(actual.size(), actualSet.size());
+
+        assertEquals(expectedSet, actualSet);
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationInfo.java b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationInfo.java
index 1ffb3b5..3b23a0c 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationInfo.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationInfo.java
@@ -126,7 +126,7 @@
                             | PackageManager.MATCH_DIRECT_BOOT_UNAWARE
                             | PackageManager.MATCH_DIRECT_BOOT_AWARE);
             if (info != null) {
-                mAppUid = info.uid;
+                mAppUid = sbn.getUid();
                 mAppName = String.valueOf(pm.getApplicationLabel(info));
                 pkgicon = pm.getApplicationIcon(info);
             }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NearestTouchFrame.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NearestTouchFrame.java
index 004a604..1452e0c 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NearestTouchFrame.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NearestTouchFrame.java
@@ -87,7 +87,8 @@
             if (mTouchingChild != null) {
                 event.offsetLocation(mTouchingChild.getWidth() / 2 - event.getX(),
                         mTouchingChild.getHeight() / 2 - event.getY());
-                return mTouchingChild.dispatchTouchEvent(event);
+                return mTouchingChild.getVisibility() == VISIBLE
+                        && mTouchingChild.dispatchTouchEvent(event);
             }
         }
         return super.onTouchEvent(event);
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/NotificationInfoTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/NotificationInfoTest.java
index b6827ea..88fa659 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/NotificationInfoTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/NotificationInfoTest.java
@@ -121,7 +121,7 @@
         mDefaultNotificationChannel = new NotificationChannel(
                 NotificationChannel.DEFAULT_CHANNEL_ID, TEST_CHANNEL_NAME,
                 NotificationManager.IMPORTANCE_LOW);
-        mSbn = new StatusBarNotification(TEST_PACKAGE_NAME, TEST_PACKAGE_NAME, 0, null, 0, 0,
+        mSbn = new StatusBarNotification(TEST_PACKAGE_NAME, TEST_PACKAGE_NAME, 0, null, TEST_UID, 0,
                 new Notification(), UserHandle.CURRENT, null, 0);
     }
 
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/NearestTouchFrameTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/NearestTouchFrameTest.java
index ed1491d3..500d620 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/NearestTouchFrameTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/NearestTouchFrameTest.java
@@ -71,6 +71,24 @@
     }
 
     @Test
+    public void testInvisibleViews() {
+        View left = mockViewAt(0, 0, 10, 10);
+        View right = mockViewAt(20, 0, 10, 10);
+        when(left.getVisibility()).thenReturn(View.INVISIBLE);
+
+        mNearestTouchFrame.addView(left);
+        mNearestTouchFrame.addView(right);
+        mNearestTouchFrame.onMeasure(0, 0);
+
+        MotionEvent ev = MotionEvent.obtain(0, 0, 0,
+                12 /* x */, 5 /* y */, 0);
+        mNearestTouchFrame.onTouchEvent(ev);
+        verify(left, never()).onTouchEvent(eq(ev));
+        verify(right, never()).onTouchEvent(eq(ev));
+        ev.recycle();
+    }
+
+    @Test
     public void testHorizontalSelection_Left() {
         View left = mockViewAt(0, 0, 10, 10);
         View right = mockViewAt(20, 0, 10, 10);
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/IconLoggerImplTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/IconLoggerImplTest.java
index 66a8561..ec994a1 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/IconLoggerImplTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/IconLoggerImplTest.java
@@ -32,6 +32,7 @@
 import static java.lang.Thread.sleep;
 
 import android.metrics.LogMaker;
+import android.support.test.filters.SmallTest;
 import android.testing.AndroidTestingRunner;
 import android.testing.TestableLooper;
 import android.testing.TestableLooper.MessageHandler;
@@ -48,6 +49,7 @@
 
 @RunWith(AndroidTestingRunner.class)
 @RunWithLooper
+@SmallTest
 public class IconLoggerImplTest extends SysuiTestCase {
 
     private MetricsLogger mMetricsLogger;
@@ -172,4 +174,4 @@
             return true;
         }));
     }
-}
\ No newline at end of file
+}
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index 04b2112..f1ea853 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -4343,11 +4343,13 @@
             int currentScore, NetworkMisc networkMisc) {
         enforceConnectivityInternalPermission();
 
+        LinkProperties lp = new LinkProperties(linkProperties);
+        lp.ensureDirectlyConnectedRoutes();
         // TODO: Instead of passing mDefaultRequest, provide an API to determine whether a Network
         // satisfies mDefaultRequest.
         final NetworkAgentInfo nai = new NetworkAgentInfo(messenger, new AsyncChannel(),
-                new Network(reserveNetId()), new NetworkInfo(networkInfo), new LinkProperties(
-                linkProperties), new NetworkCapabilities(networkCapabilities), currentScore,
+                new Network(reserveNetId()), new NetworkInfo(networkInfo), lp,
+                new NetworkCapabilities(networkCapabilities), currentScore,
                 mContext, mTrackerHandler, new NetworkMisc(networkMisc), mDefaultRequest, this);
         synchronized (this) {
             nai.networkMonitor.systemReady = mSystemReady;
@@ -4657,6 +4659,8 @@
         synchronized (nai) {
             nai.linkProperties = newLp;
         }
+        // msg.obj is already a defensive copy.
+        nai.linkProperties.ensureDirectlyConnectedRoutes();
         if (nai.everConnected) {
             updateLinkProperties(nai, oldLp);
         }
diff --git a/services/core/java/com/android/server/connectivity/tethering/OffloadController.java b/services/core/java/com/android/server/connectivity/tethering/OffloadController.java
index 788867f..5eafe5f 100644
--- a/services/core/java/com/android/server/connectivity/tethering/OffloadController.java
+++ b/services/core/java/com/android/server/connectivity/tethering/OffloadController.java
@@ -30,6 +30,10 @@
 import android.net.LinkProperties;
 import android.net.NetworkStats;
 import android.net.RouteInfo;
+import android.net.netlink.ConntrackMessage;
+import android.net.netlink.NetlinkConstants;
+import android.net.netlink.NetlinkSocket;
+import android.net.util.IpUtils;
 import android.net.util.SharedLog;
 import android.os.Handler;
 import android.os.Looper;
@@ -37,10 +41,12 @@
 import android.os.RemoteException;
 import android.os.SystemClock;
 import android.provider.Settings;
+import android.system.ErrnoException;
+import android.system.OsConstants;
 import android.text.TextUtils;
-import com.android.server.connectivity.tethering.OffloadHardwareInterface.ForwardedStats;
 
 import com.android.internal.util.IndentingPrintWriter;
+import com.android.server.connectivity.tethering.OffloadHardwareInterface.ForwardedStats;
 
 import java.net.Inet4Address;
 import java.net.Inet6Address;
@@ -63,6 +69,7 @@
  */
 public class OffloadController {
     private static final String TAG = OffloadController.class.getSimpleName();
+    private static final boolean DBG = false;
     private static final String ANYIP = "0.0.0.0";
     private static final ForwardedStats EMPTY_STATS = new ForwardedStats();
 
@@ -96,6 +103,9 @@
     // includes upstream interfaces that have a quota set.
     private HashMap<String, Long> mInterfaceQuotas = new HashMap<>();
 
+    private int mNatUpdateCallbacksReceived;
+    private int mNatUpdateNetlinkErrors;
+
     public OffloadController(Handler h, OffloadHardwareInterface hwi,
             ContentResolver contentResolver, INetworkManagementService nms, SharedLog log) {
         mHandler = h;
@@ -115,12 +125,12 @@
         }
     }
 
-    public void start() {
-        if (started()) return;
+    public boolean start() {
+        if (started()) return true;
 
         if (isOffloadDisabled()) {
             mLog.i("tethering offload disabled");
-            return;
+            return false;
         }
 
         if (!mConfigInitialized) {
@@ -128,11 +138,14 @@
             if (!mConfigInitialized) {
                 mLog.i("tethering offload config not supported");
                 stop();
-                return;
+                return false;
             }
         }
 
         mControlInitialized = mHwInterface.initOffloadControl(
+                // OffloadHardwareInterface guarantees that these callback
+                // methods are called on the handler passed to it, which is the
+                // same as mHandler, as coordinated by the setup in Tethering.
                 new OffloadHardwareInterface.ControlCallback() {
                     @Override
                     public void onStarted() {
@@ -203,15 +216,20 @@
                                                    String srcAddr, int srcPort,
                                                    String dstAddr, int dstPort) {
                         if (!started()) return;
-                        mLog.log(String.format("NAT timeout update: %s (%s,%s) -> (%s,%s)",
-                                proto, srcAddr, srcPort, dstAddr, dstPort));
+                        updateNatTimeout(proto, srcAddr, srcPort, dstAddr, dstPort);
                     }
                 });
-        if (!mControlInitialized) {
+
+        final boolean isStarted = started();
+        if (!isStarted) {
             mLog.i("tethering offload control not supported");
             stop();
+        } else {
+            mLog.log("tethering offload started");
+            mNatUpdateCallbacksReceived = 0;
+            mNatUpdateNetlinkErrors = 0;
         }
-        mLog.log("tethering offload started");
+        return isStarted;
     }
 
     public void stop() {
@@ -227,6 +245,10 @@
         if (wasStarted) mLog.log("tethering offload stopped");
     }
 
+    private boolean started() {
+        return mConfigInitialized && mControlInitialized;
+    }
+
     private class OffloadTetheringStatsProvider extends ITetheringStatsProvider.Stub {
         @Override
         public NetworkStats getTetherStats(int how) {
@@ -402,10 +424,6 @@
                 mContentResolver, TETHER_OFFLOAD_DISABLED, defaultDisposition) != 0);
     }
 
-    private boolean started() {
-        return mConfigInitialized && mControlInitialized;
-    }
-
     private boolean pushUpstreamParameters(String prevUpstream) {
         final String iface = currentUpstreamInterface();
 
@@ -516,10 +534,113 @@
             pw.println("Offload disabled");
             return;
         }
-        pw.println("Offload HALs " + (started() ? "started" : "not started"));
+        final boolean isStarted = started();
+        pw.println("Offload HALs " + (isStarted ? "started" : "not started"));
         LinkProperties lp = mUpstreamLinkProperties;
         String upstream = (lp != null) ? lp.getInterfaceName() : null;
         pw.println("Current upstream: " + upstream);
         pw.println("Exempt prefixes: " + mLastLocalPrefixStrs);
+        pw.println("NAT timeout update callbacks received during the "
+                + (isStarted ? "current" : "last")
+                + " offload session: "
+                + mNatUpdateCallbacksReceived);
+        pw.println("NAT timeout update netlink errors during the "
+                + (isStarted ? "current" : "last")
+                + " offload session: "
+                + mNatUpdateNetlinkErrors);
+    }
+
+    private void updateNatTimeout(
+            int proto, String srcAddr, int srcPort, String dstAddr, int dstPort) {
+        final String protoName = protoNameFor(proto);
+        if (protoName == null) {
+            mLog.e("Unknown NAT update callback protocol: " + proto);
+            return;
+        }
+
+        final Inet4Address src = parseIPv4Address(srcAddr);
+        if (src == null) {
+            mLog.e("Failed to parse IPv4 address: " + srcAddr);
+            return;
+        }
+
+        if (!IpUtils.isValidUdpOrTcpPort(srcPort)) {
+            mLog.e("Invalid src port: " + srcPort);
+            return;
+        }
+
+        final Inet4Address dst = parseIPv4Address(dstAddr);
+        if (dst == null) {
+            mLog.e("Failed to parse IPv4 address: " + dstAddr);
+            return;
+        }
+
+        if (!IpUtils.isValidUdpOrTcpPort(dstPort)) {
+            mLog.e("Invalid dst port: " + dstPort);
+            return;
+        }
+
+        mNatUpdateCallbacksReceived++;
+        if (DBG) {
+            mLog.log(String.format("NAT timeout update: %s (%s, %s) -> (%s, %s)",
+                     protoName, srcAddr, srcPort, dstAddr, dstPort));
+        }
+
+        final int timeoutSec = connectionTimeoutUpdateSecondsFor(proto);
+        final byte[] msg = ConntrackMessage.newIPv4TimeoutUpdateRequest(
+                proto, src, srcPort, dst, dstPort, timeoutSec);
+
+        try {
+            NetlinkSocket.sendOneShotKernelMessage(OsConstants.NETLINK_NETFILTER, msg);
+        } catch (ErrnoException e) {
+            mNatUpdateNetlinkErrors++;
+            mLog.e("Error updating NAT conntrack entry: " + e
+                    + ", msg: " + NetlinkConstants.hexify(msg));
+            mLog.log("NAT timeout update callbacks received: " + mNatUpdateCallbacksReceived);
+            mLog.log("NAT timeout update netlink errors: " + mNatUpdateNetlinkErrors);
+        }
+    }
+
+    private static Inet4Address parseIPv4Address(String addrString) {
+        try {
+            final InetAddress ip = InetAddress.parseNumericAddress(addrString);
+            // TODO: Consider other sanitization steps here, including perhaps:
+            //           not eql to 0.0.0.0
+            //           not within 169.254.0.0/16
+            //           not within ::ffff:0.0.0.0/96
+            //           not within ::/96
+            // et cetera.
+            if (ip instanceof Inet4Address) {
+                return (Inet4Address) ip;
+            }
+        } catch (IllegalArgumentException iae) {}
+        return null;
+    }
+
+    private static String protoNameFor(int proto) {
+        // OsConstants values are not constant expressions; no switch statement.
+        if (proto == OsConstants.IPPROTO_UDP) {
+            return "UDP";
+        } else if (proto == OsConstants.IPPROTO_TCP) {
+            return "TCP";
+        }
+        return null;
+    }
+
+    private static int connectionTimeoutUpdateSecondsFor(int proto) {
+        // TODO: Replace this with more thoughtful work, perhaps reading from
+        // and maybe writing to any required
+        //
+        //     /proc/sys/net/netfilter/nf_conntrack_tcp_timeout_*
+        //     /proc/sys/net/netfilter/nf_conntrack_udp_timeout{,_stream}
+        //
+        // entries.  TBD.
+        if (proto == OsConstants.IPPROTO_TCP) {
+            // Cf. /proc/sys/net/netfilter/nf_conntrack_tcp_timeout_established
+            return 432000;
+        } else {
+            // Cf. /proc/sys/net/netfilter/nf_conntrack_udp_timeout_stream
+            return 180;
+        }
     }
 }
diff --git a/services/core/java/com/android/server/connectivity/tethering/OffloadHardwareInterface.java b/services/core/java/com/android/server/connectivity/tethering/OffloadHardwareInterface.java
index 865a989..553fd8c 100644
--- a/services/core/java/com/android/server/connectivity/tethering/OffloadHardwareInterface.java
+++ b/services/core/java/com/android/server/connectivity/tethering/OffloadHardwareInterface.java
@@ -21,10 +21,12 @@
 import android.hardware.tetheroffload.control.V1_0.IOffloadControl;
 import android.hardware.tetheroffload.control.V1_0.ITetheringOffloadCallback;
 import android.hardware.tetheroffload.control.V1_0.NatTimeoutUpdate;
+import android.hardware.tetheroffload.control.V1_0.NetworkProtocol;
 import android.hardware.tetheroffload.control.V1_0.OffloadCallbackEvent;
 import android.os.Handler;
 import android.os.RemoteException;
 import android.net.util.SharedLog;
+import android.system.OsConstants;
 
 import java.util.ArrayList;
 
@@ -327,13 +329,24 @@
         public void updateTimeout(NatTimeoutUpdate params) {
             handler.post(() -> {
                     controlCb.onNatTimeoutUpdate(
-                        params.proto,
+                        networkProtocolToOsConstant(params.proto),
                         params.src.addr, uint16(params.src.port),
                         params.dst.addr, uint16(params.dst.port));
             });
         }
     }
 
+    private static int networkProtocolToOsConstant(int proto) {
+        switch (proto) {
+            case NetworkProtocol.TCP: return OsConstants.IPPROTO_TCP;
+            case NetworkProtocol.UDP: return OsConstants.IPPROTO_UDP;
+            default:
+                // The caller checks this value and will log an error. Just make
+                // sure it won't collide with valid OsContants.IPPROTO_* values.
+                return -Math.abs(proto);
+        }
+    }
+
     private static class CbResults {
         boolean success;
         String errMsg;
diff --git a/services/core/java/com/android/server/notification/NotificationManagerService.java b/services/core/java/com/android/server/notification/NotificationManagerService.java
index 44e571a..e578485 100644
--- a/services/core/java/com/android/server/notification/NotificationManagerService.java
+++ b/services/core/java/com/android/server/notification/NotificationManagerService.java
@@ -1461,8 +1461,18 @@
         if (channel.getImportance() == NotificationManager.IMPORTANCE_NONE) {
             // cancel
             cancelAllNotificationsInt(MY_UID, MY_PID, pkg, channel.getId(), 0, 0, true,
-                    UserHandle.getUserId(Binder.getCallingUid()), REASON_CHANNEL_BANNED,
+                    UserHandle.getUserId(uid), REASON_CHANNEL_BANNED,
                     null);
+            if (isUidSystemOrPhone(uid)) {
+                int[] profileIds = mUserProfiles.getCurrentProfileIds();
+                int N = profileIds.length;
+                for (int i = 0; i < N; i++) {
+                    int profileId = profileIds[i];
+                    cancelAllNotificationsInt(MY_UID, MY_PID, pkg, channel.getId(), 0, 0, true,
+                            profileId, REASON_CHANNEL_BANNED,
+                            null);
+                }
+            }
         }
         mRankingHelper.updateNotificationChannel(pkg, uid, channel);
 
diff --git a/services/core/java/com/android/server/notification/ZenModeHelper.java b/services/core/java/com/android/server/notification/ZenModeHelper.java
index 1a0b878..3194c52 100644
--- a/services/core/java/com/android/server/notification/ZenModeHelper.java
+++ b/services/core/java/com/android/server/notification/ZenModeHelper.java
@@ -465,6 +465,8 @@
                             + "from " + currRule.getName() + " to " + defaultRule.name);
                     // update default rule (if locale changed, name of rule will change)
                     AutomaticZenRule defaultAutoRule = createAutomaticZenRule(defaultRule);
+                    // ensure enabled state is carried over from current rule
+                    defaultAutoRule.setEnabled(currRule.isEnabled());
                     updateAutomaticZenRule(ruleId, defaultAutoRule,
                             "locale changed");
                 }
diff --git a/services/core/java/com/android/server/pm/UserManagerService.java b/services/core/java/com/android/server/pm/UserManagerService.java
index e6c6622..48d6cdc 100644
--- a/services/core/java/com/android/server/pm/UserManagerService.java
+++ b/services/core/java/com/android/server/pm/UserManagerService.java
@@ -128,6 +128,7 @@
  *
  * Method naming convention:
  * <ul>
+ * <li> Methods suffixed with "LAr" should be called within the {@link #mAppRestrictionsLock} lock.
  * <li> Methods suffixed with "LP" should be called within the {@link #mPackagesLock} lock.
  * <li> Methods suffixed with "LR" should be called within the {@link #mRestrictionsLock} lock.
  * <li> Methods suffixed with "LU" should be called within the {@link #mUsersLock} lock.
@@ -232,6 +233,8 @@
     // Short-term lock for internal state, when interaction/sync with PM is not required
     private final Object mUsersLock = LockGuard.installNewLock(LockGuard.INDEX_USER);
     private final Object mRestrictionsLock = new Object();
+    // Used for serializing access to app restriction files
+    private final Object mAppRestrictionsLock = new Object();
 
     private final Handler mHandler;
 
@@ -2328,13 +2331,11 @@
     /**
      * Removes the app restrictions file for a specific package and user id, if it exists.
      */
-    private void cleanAppRestrictionsForPackage(String pkg, int userId) {
-        synchronized (mPackagesLock) {
-            File dir = Environment.getUserSystemDirectory(userId);
-            File resFile = new File(dir, packageToRestrictionsFileName(pkg));
-            if (resFile.exists()) {
-                resFile.delete();
-            }
+    private static void cleanAppRestrictionsForPackageLAr(String pkg, int userId) {
+        File dir = Environment.getUserSystemDirectory(userId);
+        File resFile = new File(dir, packageToRestrictionsFileName(pkg));
+        if (resFile.exists()) {
+            resFile.delete();
         }
     }
 
@@ -2853,9 +2854,9 @@
                 || !UserHandle.isSameApp(Binder.getCallingUid(), getUidForPackage(packageName))) {
             checkSystemOrRoot("get application restrictions for other user/app " + packageName);
         }
-        synchronized (mPackagesLock) {
+        synchronized (mAppRestrictionsLock) {
             // Read the restrictions from XML
-            return readApplicationRestrictionsLP(packageName, userId);
+            return readApplicationRestrictionsLAr(packageName, userId);
         }
     }
 
@@ -2866,12 +2867,12 @@
         if (restrictions != null) {
             restrictions.setDefusable(true);
         }
-        synchronized (mPackagesLock) {
+        synchronized (mAppRestrictionsLock) {
             if (restrictions == null || restrictions.isEmpty()) {
-                cleanAppRestrictionsForPackage(packageName, userId);
+                cleanAppRestrictionsForPackageLAr(packageName, userId);
             } else {
                 // Write the restrictions to XML
-                writeApplicationRestrictionsLP(packageName, restrictions, userId);
+                writeApplicationRestrictionsLAr(packageName, restrictions, userId);
             }
         }
 
@@ -2894,15 +2895,17 @@
         }
     }
 
-    private Bundle readApplicationRestrictionsLP(String packageName, int userId) {
+    @GuardedBy("mAppRestrictionsLock")
+    private static Bundle readApplicationRestrictionsLAr(String packageName, int userId) {
         AtomicFile restrictionsFile =
                 new AtomicFile(new File(Environment.getUserSystemDirectory(userId),
                         packageToRestrictionsFileName(packageName)));
-        return readApplicationRestrictionsLP(restrictionsFile);
+        return readApplicationRestrictionsLAr(restrictionsFile);
     }
 
     @VisibleForTesting
-    static Bundle readApplicationRestrictionsLP(AtomicFile restrictionsFile) {
+    @GuardedBy("mAppRestrictionsLock")
+    static Bundle readApplicationRestrictionsLAr(AtomicFile restrictionsFile) {
         final Bundle restrictions = new Bundle();
         final ArrayList<String> values = new ArrayList<>();
         if (!restrictionsFile.getBaseFile().exists()) {
@@ -2985,16 +2988,18 @@
         return childBundle;
     }
 
-    private void writeApplicationRestrictionsLP(String packageName,
+    @GuardedBy("mAppRestrictionsLock")
+    private static void writeApplicationRestrictionsLAr(String packageName,
             Bundle restrictions, int userId) {
         AtomicFile restrictionsFile = new AtomicFile(
                 new File(Environment.getUserSystemDirectory(userId),
                         packageToRestrictionsFileName(packageName)));
-        writeApplicationRestrictionsLP(restrictions, restrictionsFile);
+        writeApplicationRestrictionsLAr(restrictions, restrictionsFile);
     }
 
     @VisibleForTesting
-    static void writeApplicationRestrictionsLP(Bundle restrictions, AtomicFile restrictionsFile) {
+    @GuardedBy("mAppRestrictionsLock")
+    static void writeApplicationRestrictionsLAr(Bundle restrictions, AtomicFile restrictionsFile) {
         FileOutputStream fos = null;
         try {
             fos = restrictionsFile.startWrite();
@@ -3238,7 +3243,7 @@
         return -1;
     }
 
-    private String packageToRestrictionsFileName(String packageName) {
+    private static String packageToRestrictionsFileName(String packageName) {
         return RESTRICTIONS_FILE_PREFIX + packageName + XML_SUFFIX;
     }
 
diff --git a/services/net/java/android/net/ip/IpReachabilityMonitor.java b/services/net/java/android/net/ip/IpReachabilityMonitor.java
index 97c9d82..88bd78c 100644
--- a/services/net/java/android/net/ip/IpReachabilityMonitor.java
+++ b/services/net/java/android/net/ip/IpReachabilityMonitor.java
@@ -183,44 +183,14 @@
         final byte[] msg = RtNetlinkNeighborMessage.newNewNeighborMessage(
                 1, ip, StructNdMsg.NUD_PROBE, ifIndex, null);
 
-        int errno = -OsConstants.EPROTO;
-        try (NetlinkSocket nlSocket = new NetlinkSocket(OsConstants.NETLINK_ROUTE)) {
-            final long IO_TIMEOUT = 300L;
-            nlSocket.connectToKernel();
-            nlSocket.sendMessage(msg, 0, msg.length, IO_TIMEOUT);
-            final ByteBuffer bytes = nlSocket.recvMessage(IO_TIMEOUT);
-            // recvMessage() guaranteed to not return null if it did not throw.
-            final NetlinkMessage response = NetlinkMessage.parse(bytes);
-            if (response != null && response instanceof NetlinkErrorMessage &&
-                    (((NetlinkErrorMessage) response).getNlMsgError() != null)) {
-                errno = ((NetlinkErrorMessage) response).getNlMsgError().error;
-                if (errno != 0) {
-                    // TODO: consider ignoring EINVAL (-22), which appears to be
-                    // normal when probing a neighbor for which the kernel does
-                    // not already have / no longer has a link layer address.
-                    Log.e(TAG, "Error " + msgSnippet + ", errmsg=" + response.toString());
-                }
-            } else {
-                String errmsg;
-                if (response == null) {
-                    bytes.position(0);
-                    errmsg = "raw bytes: " + NetlinkConstants.hexify(bytes);
-                } else {
-                    errmsg = response.toString();
-                }
-                Log.e(TAG, "Error " + msgSnippet + ", errmsg=" + errmsg);
-            }
+        try {
+            NetlinkSocket.sendOneShotKernelMessage(OsConstants.NETLINK_ROUTE, msg);
         } catch (ErrnoException e) {
-            Log.e(TAG, "Error " + msgSnippet, e);
-            errno = -e.errno;
-        } catch (InterruptedIOException e) {
-            Log.e(TAG, "Error " + msgSnippet, e);
-            errno = -OsConstants.ETIMEDOUT;
-        } catch (SocketException e) {
-            Log.e(TAG, "Error " + msgSnippet, e);
-            errno = -OsConstants.EIO;
+            Log.e(TAG, "Error " + msgSnippet + ": " + e);
+            return -e.errno;
         }
-        return errno;
+
+        return 0;
     }
 
     public IpReachabilityMonitor(Context context, String ifName, SharedLog log, Callback callback) {
diff --git a/services/net/java/android/net/netlink/ConntrackMessage.java b/services/net/java/android/net/netlink/ConntrackMessage.java
new file mode 100644
index 0000000..605c46b
--- /dev/null
+++ b/services/net/java/android/net/netlink/ConntrackMessage.java
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.net.netlink;
+
+import static android.net.netlink.NetlinkConstants.alignedLengthOf;
+import static android.net.netlink.StructNlAttr.makeNestedType;
+import static android.net.netlink.StructNlAttr.NLA_HEADERLEN;
+import static android.net.netlink.StructNlMsgHdr.NLM_F_ACK;
+import static android.net.netlink.StructNlMsgHdr.NLM_F_DUMP;
+import static android.net.netlink.StructNlMsgHdr.NLM_F_REPLACE;
+import static android.net.netlink.StructNlMsgHdr.NLM_F_REQUEST;
+import static android.net.util.NetworkConstants.IPV4_ADDR_LEN;
+import static java.nio.ByteOrder.BIG_ENDIAN;
+
+import android.system.OsConstants;
+import android.util.Log;
+import libcore.io.SizeOf;
+
+import java.net.Inet4Address;
+import java.net.Inet6Address;
+import java.net.InetAddress;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+
+
+/**
+ * A NetlinkMessage subclass for netlink conntrack messages.
+ *
+ * see also: &lt;linux_src&gt;/include/uapi/linux/netfilter/nfnetlink_conntrack.h
+ *
+ * @hide
+ */
+public class ConntrackMessage extends NetlinkMessage {
+    public static final int STRUCT_SIZE = StructNlMsgHdr.STRUCT_SIZE + StructNfGenMsg.STRUCT_SIZE;
+
+    public static final short NFNL_SUBSYS_CTNETLINK = 1;
+    public static final short IPCTNL_MSG_CT_NEW = 0;
+
+    // enum ctattr_type
+    public static final short CTA_TUPLE_ORIG  = 1;
+    public static final short CTA_TUPLE_REPLY = 2;
+    public static final short CTA_TIMEOUT     = 7;
+
+    // enum ctattr_tuple
+    public static final short CTA_TUPLE_IP    = 1;
+    public static final short CTA_TUPLE_PROTO = 2;
+
+    // enum ctattr_ip
+    public static final short CTA_IP_V4_SRC = 1;
+    public static final short CTA_IP_V4_DST = 2;
+
+    // enum ctattr_l4proto
+    public static final short CTA_PROTO_NUM      = 1;
+    public static final short CTA_PROTO_SRC_PORT = 2;
+    public static final short CTA_PROTO_DST_PORT = 3;
+
+    public static byte[] newIPv4TimeoutUpdateRequest(
+            int proto, Inet4Address src, int sport, Inet4Address dst, int dport, int timeoutSec) {
+        // *** STYLE WARNING ***
+        //
+        // Code below this point uses extra block indentation to highlight the
+        // packing of nested tuple netlink attribute types.
+        final StructNlAttr ctaTupleOrig = new StructNlAttr(CTA_TUPLE_ORIG,
+                new StructNlAttr(CTA_TUPLE_IP,
+                        new StructNlAttr(CTA_IP_V4_SRC, src),
+                        new StructNlAttr(CTA_IP_V4_DST, dst)),
+                new StructNlAttr(CTA_TUPLE_PROTO,
+                        new StructNlAttr(CTA_PROTO_NUM, (byte) proto),
+                        new StructNlAttr(CTA_PROTO_SRC_PORT, (short) sport, BIG_ENDIAN),
+                        new StructNlAttr(CTA_PROTO_DST_PORT, (short) dport, BIG_ENDIAN)));
+
+        final StructNlAttr ctaTimeout = new StructNlAttr(CTA_TIMEOUT, timeoutSec, BIG_ENDIAN);
+
+        final int payloadLength = ctaTupleOrig.getAlignedLength() + ctaTimeout.getAlignedLength();
+        final byte[] bytes = new byte[STRUCT_SIZE + payloadLength];
+        final ByteBuffer byteBuffer = ByteBuffer.wrap(bytes);
+        byteBuffer.order(ByteOrder.nativeOrder());
+
+        final ConntrackMessage ctmsg = new ConntrackMessage();
+        ctmsg.mHeader.nlmsg_len = bytes.length;
+        ctmsg.mHeader.nlmsg_type = (NFNL_SUBSYS_CTNETLINK << 8) | IPCTNL_MSG_CT_NEW;
+        ctmsg.mHeader.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | NLM_F_REPLACE;
+        ctmsg.mHeader.nlmsg_seq = 1;
+        ctmsg.pack(byteBuffer);
+
+        ctaTupleOrig.pack(byteBuffer);
+        ctaTimeout.pack(byteBuffer);
+
+        return bytes;
+    }
+
+    protected StructNfGenMsg mNfGenMsg;
+
+    private ConntrackMessage() {
+        super(new StructNlMsgHdr());
+        mNfGenMsg = new StructNfGenMsg((byte) OsConstants.AF_INET);
+    }
+
+    public void pack(ByteBuffer byteBuffer) {
+        mHeader.pack(byteBuffer);
+        mNfGenMsg.pack(byteBuffer);
+    }
+}
diff --git a/services/net/java/android/net/netlink/NetlinkSocket.java b/services/net/java/android/net/netlink/NetlinkSocket.java
index 657d48c..a9e0cd9 100644
--- a/services/net/java/android/net/netlink/NetlinkSocket.java
+++ b/services/net/java/android/net/netlink/NetlinkSocket.java
@@ -51,6 +51,47 @@
     private long mLastRecvTimeoutMs;
     private long mLastSendTimeoutMs;
 
+    public static void sendOneShotKernelMessage(int nlProto, byte[] msg) throws ErrnoException {
+        final String errPrefix = "Error in NetlinkSocket.sendOneShotKernelMessage";
+
+        try (NetlinkSocket nlSocket = new NetlinkSocket(nlProto)) {
+            final long IO_TIMEOUT = 300L;
+            nlSocket.connectToKernel();
+            nlSocket.sendMessage(msg, 0, msg.length, IO_TIMEOUT);
+            final ByteBuffer bytes = nlSocket.recvMessage(IO_TIMEOUT);
+            // recvMessage() guaranteed to not return null if it did not throw.
+            final NetlinkMessage response = NetlinkMessage.parse(bytes);
+            if (response != null && response instanceof NetlinkErrorMessage &&
+                    (((NetlinkErrorMessage) response).getNlMsgError() != null)) {
+                final int errno = ((NetlinkErrorMessage) response).getNlMsgError().error;
+                if (errno != 0) {
+                    // TODO: consider ignoring EINVAL (-22), which appears to be
+                    // normal when probing a neighbor for which the kernel does
+                    // not already have / no longer has a link layer address.
+                    Log.e(TAG, errPrefix + ", errmsg=" + response.toString());
+                    // Note: convert kernel errnos (negative) into userspace errnos (positive).
+                    throw new ErrnoException(response.toString(), Math.abs(errno));
+                }
+            } else {
+                final String errmsg;
+                if (response == null) {
+                    bytes.position(0);
+                    errmsg = "raw bytes: " + NetlinkConstants.hexify(bytes);
+                } else {
+                    errmsg = response.toString();
+                }
+                Log.e(TAG, errPrefix + ", errmsg=" + errmsg);
+                throw new ErrnoException(errmsg, OsConstants.EPROTO);
+            }
+        } catch (InterruptedIOException e) {
+            Log.e(TAG, errPrefix, e);
+            throw new ErrnoException(errPrefix, OsConstants.ETIMEDOUT, e);
+        } catch (SocketException e) {
+            Log.e(TAG, errPrefix, e);
+            throw new ErrnoException(errPrefix, OsConstants.EIO, e);
+        }
+    }
+
     public NetlinkSocket(int nlProto) throws ErrnoException {
         mDescriptor = Os.socket(
                 OsConstants.AF_NETLINK, OsConstants.SOCK_DGRAM, nlProto);
diff --git a/services/net/java/android/net/netlink/RtNetlinkNeighborMessage.java b/services/net/java/android/net/netlink/RtNetlinkNeighborMessage.java
index 02df131..e784fbb 100644
--- a/services/net/java/android/net/netlink/RtNetlinkNeighborMessage.java
+++ b/services/net/java/android/net/netlink/RtNetlinkNeighborMessage.java
@@ -36,7 +36,7 @@
 
 
 /**
- * A NetlinkMessage subclass for netlink error messages.
+ * A NetlinkMessage subclass for rtnetlink neighbor messages.
  *
  * see also: &lt;linux_src&gt;/include/uapi/linux/neighbour.h
  *
diff --git a/services/net/java/android/net/netlink/StructNfGenMsg.java b/services/net/java/android/net/netlink/StructNfGenMsg.java
new file mode 100644
index 0000000..99695e2
--- /dev/null
+++ b/services/net/java/android/net/netlink/StructNfGenMsg.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.net.netlink;
+
+import libcore.io.SizeOf;
+
+import java.nio.ByteBuffer;
+
+
+/**
+ * struct nfgenmsg
+ *
+ * see &lt;linux_src&gt;/include/uapi/linux/netfilter/nfnetlink.h
+ *
+ * @hide
+ */
+public class StructNfGenMsg {
+    public static final int STRUCT_SIZE = 2 + SizeOf.SHORT;
+
+    public static final int NFNETLINK_V0 = 0;
+
+    final public byte nfgen_family;
+    final public byte version;
+    final public short res_id;  // N.B.: this is big endian in the kernel
+
+    public StructNfGenMsg(byte family) {
+        nfgen_family = family;
+        version = (byte) NFNETLINK_V0;
+        res_id = (short) 0;
+    }
+
+    public void pack(ByteBuffer byteBuffer) {
+        byteBuffer.put(nfgen_family);
+        byteBuffer.put(version);
+        byteBuffer.putShort(res_id);
+    }
+}
diff --git a/services/net/java/android/net/netlink/StructNlAttr.java b/services/net/java/android/net/netlink/StructNlAttr.java
index 597a6aa..811bdbb 100644
--- a/services/net/java/android/net/netlink/StructNlAttr.java
+++ b/services/net/java/android/net/netlink/StructNlAttr.java
@@ -34,7 +34,12 @@
  */
 public class StructNlAttr {
     // Already aligned.
-    public static final int NLA_HEADERLEN         = 4;
+    public static final int NLA_HEADERLEN  = 4;
+    public static final int NLA_F_NESTED   = (1 << 15);
+
+    public static short makeNestedType(short type) {
+        return (short) (type | NLA_F_NESTED);
+    }
 
     // Return a (length, type) object only, without consuming any bytes in
     // |byteBuffer| and without copying or interpreting any value bytes.
@@ -46,10 +51,17 @@
         }
         final int baseOffset = byteBuffer.position();
 
-        final StructNlAttr struct = new StructNlAttr();
-        struct.nla_len = byteBuffer.getShort();
-        struct.nla_type = byteBuffer.getShort();
-        struct.mByteOrder = byteBuffer.order();
+        // Assume the byte order of the buffer is the expected byte order of the value.
+        final StructNlAttr struct = new StructNlAttr(byteBuffer.order());
+        // The byte order of nla_len and nla_type is always native.
+        final ByteOrder originalOrder = byteBuffer.order();
+        byteBuffer.order(ByteOrder.nativeOrder());
+        try {
+            struct.nla_len = byteBuffer.getShort();
+            struct.nla_type = byteBuffer.getShort();
+        } finally {
+            byteBuffer.order(originalOrder);
+        }
 
         byteBuffer.position(baseOffset);
         if (struct.nla_len < NLA_HEADERLEN) {
@@ -78,13 +90,65 @@
         return struct;
     }
 
-    public short nla_len;
+    public short nla_len = (short) NLA_HEADERLEN;
     public short nla_type;
     public byte[] nla_value;
-    public ByteOrder mByteOrder;
 
-    public StructNlAttr() {
-        mByteOrder = ByteOrder.nativeOrder();
+    // The byte order used to read/write the value member. Netlink length and
+    // type members are always read/written in native order.
+    private ByteOrder mByteOrder = ByteOrder.nativeOrder();
+
+    public StructNlAttr() {}
+
+    public StructNlAttr(ByteOrder byteOrder) {
+        mByteOrder = byteOrder;
+    }
+
+    public StructNlAttr(short type, byte value) {
+        nla_type = type;
+        setValue(new byte[1]);
+        nla_value[0] = value;
+    }
+
+    public StructNlAttr(short type, short value) {
+        this(type, value, ByteOrder.nativeOrder());
+    }
+
+    public StructNlAttr(short type, short value, ByteOrder order) {
+        this(order);
+        nla_type = type;
+        setValue(new byte[SizeOf.SHORT]);
+        getValueAsByteBuffer().putShort(value);
+    }
+
+    public StructNlAttr(short type, int value) {
+        this(type, value, ByteOrder.nativeOrder());
+    }
+
+    public StructNlAttr(short type, int value, ByteOrder order) {
+        this(order);
+        nla_type = type;
+        setValue(new byte[SizeOf.INT]);
+        getValueAsByteBuffer().putInt(value);
+    }
+
+    public StructNlAttr(short type, InetAddress ip) {
+        nla_type = type;
+        setValue(ip.getAddress());
+    }
+
+    public StructNlAttr(short type, StructNlAttr... nested) {
+        this();
+        nla_type = makeNestedType(type);
+
+        int payloadLength = 0;
+        for (StructNlAttr nla : nested) payloadLength += nla.getAlignedLength();
+        setValue(new byte[payloadLength]);
+
+        final ByteBuffer buf = getValueAsByteBuffer();
+        for (StructNlAttr nla : nested) {
+            nla.pack(buf);
+        }
     }
 
     public int getAlignedLength() {
@@ -117,13 +181,25 @@
     }
 
     public void pack(ByteBuffer byteBuffer) {
+        final ByteOrder originalOrder = byteBuffer.order();
         final int originalPosition = byteBuffer.position();
-        byteBuffer.putShort(nla_len);
-        byteBuffer.putShort(nla_type);
-        byteBuffer.put(nla_value);
+
+        byteBuffer.order(ByteOrder.nativeOrder());
+        try {
+            byteBuffer.putShort(nla_len);
+            byteBuffer.putShort(nla_type);
+            if (nla_value != null) byteBuffer.put(nla_value);
+        } finally {
+            byteBuffer.order(originalOrder);
+        }
         byteBuffer.position(originalPosition + getAlignedLength());
     }
 
+    private void setValue(byte[] value) {
+        nla_value = value;
+        nla_len = (short) (NLA_HEADERLEN + ((nla_value != null) ? nla_value.length : 0));
+    }
+
     @Override
     public String toString() {
         return "StructNlAttr{ "
diff --git a/services/tests/servicestests/src/com/android/server/pm/UserManagerServiceTest.java b/services/tests/servicestests/src/com/android/server/pm/UserManagerServiceTest.java
index 9f77297..d136614 100644
--- a/services/tests/servicestests/src/com/android/server/pm/UserManagerServiceTest.java
+++ b/services/tests/servicestests/src/com/android/server/pm/UserManagerServiceTest.java
@@ -55,11 +55,11 @@
     public void testWriteReadApplicationRestrictions() throws IOException {
         AtomicFile atomicFile = new AtomicFile(restrictionsFile);
         Bundle bundle = createBundle();
-        UserManagerService.writeApplicationRestrictionsLP(bundle, atomicFile);
+        UserManagerService.writeApplicationRestrictionsLAr(bundle, atomicFile);
         assertTrue(atomicFile.getBaseFile().exists());
         String s = FileUtils.readTextFile(restrictionsFile, 10000, "");
         System.out.println("restrictionsFile: " + s);
-        bundle = UserManagerService.readApplicationRestrictionsLP(atomicFile);
+        bundle = UserManagerService.readApplicationRestrictionsLAr(atomicFile);
         System.out.println("readApplicationRestrictionsLocked bundle: " + bundle);
         assertBundle(bundle);
     }
diff --git a/telephony/java/android/telephony/PhoneNumberUtils.java b/telephony/java/android/telephony/PhoneNumberUtils.java
index 8705446..d5ff1ad 100644
--- a/telephony/java/android/telephony/PhoneNumberUtils.java
+++ b/telephony/java/android/telephony/PhoneNumberUtils.java
@@ -2540,11 +2540,11 @@
     }
 
     // Split a phone number like "+20(123)-456#" using spaces, ignoring anything that is not
-    // a digit, to produce a result like "20 123 456".
+    // a digit or the characters * and #, to produce a result like "20 123 456#".
     private static String splitAtNonNumerics(CharSequence number) {
         StringBuilder sb = new StringBuilder(number.length());
         for (int i = 0; i < number.length(); i++) {
-            sb.append(PhoneNumberUtils.isISODigit(number.charAt(i))
+            sb.append(PhoneNumberUtils.is12Key(number.charAt(i))
                     ? number.charAt(i)
                     : " ");
         }
diff --git a/tests/net/java/android/net/netlink/ConntrackMessageTest.java b/tests/net/java/android/net/netlink/ConntrackMessageTest.java
new file mode 100644
index 0000000..3aab942
--- /dev/null
+++ b/tests/net/java/android/net/netlink/ConntrackMessageTest.java
@@ -0,0 +1,131 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.net.netlink;
+
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assume.assumeTrue;
+
+import android.system.OsConstants;
+import libcore.util.HexEncoding;
+
+import android.support.test.filters.SmallTest;
+import android.support.test.runner.AndroidJUnit4;
+import org.junit.runner.RunWith;
+import org.junit.Test;
+
+import java.net.Inet4Address;
+import java.net.InetAddress;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.util.Arrays;
+
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class ConntrackMessageTest {
+    private static final boolean USING_LE = (ByteOrder.nativeOrder() == ByteOrder.LITTLE_ENDIAN);
+
+    // Example 1: TCP (192.168.43.209, 44333) -> (23.211.13.26, 443)
+    public static final String CT_V4UPDATE_TCP_HEX =
+            // struct nlmsghdr
+            "50000000" +      // length = 80
+            "0001" +          // type = (1 << 8) | 0
+            "0501" +          // flags
+            "01000000" +      // seqno = 1
+            "00000000" +      // pid = 0
+            // struct nfgenmsg
+            "02" +            // nfgen_family  = AF_INET
+            "00" +            // version = NFNETLINK_V0
+            "0000" +          // res_id
+            // struct nlattr
+            "3400" +          // nla_len = 52
+            "0180" +          // nla_type = nested CTA_TUPLE_ORIG
+                // struct nlattr
+                "1400" +      // nla_len = 20
+                "0180" +      // nla_type = nested CTA_TUPLE_IP
+                    "0800 0100 C0A82BD1" +  // nla_type=CTA_IP_V4_SRC, ip=192.168.43.209
+                    "0800 0200 17D30D1A" +  // nla_type=CTA_IP_V4_DST, ip=23.211.13.26
+                // struct nlattr
+                "1C00" +      // nla_len = 28
+                "0280" +      // nla_type = nested CTA_TUPLE_PROTO
+                    "0500 0100 06 000000" +  // nla_type=CTA_PROTO_NUM, proto=6
+                    "0600 0200 AD2D 0000" +  // nla_type=CTA_PROTO_SRC_PORT, port=44333 (big endian)
+                    "0600 0300 01BB 0000" +  // nla_type=CTA_PROTO_DST_PORT, port=443 (big endian)
+            // struct nlattr
+            "0800" +          // nla_len = 8
+            "0700" +          // nla_type = CTA_TIMEOUT
+            "00069780";       // nla_value = 432000 (big endian)
+    public static final byte[] CT_V4UPDATE_TCP_BYTES =
+            HexEncoding.decode(CT_V4UPDATE_TCP_HEX.replaceAll(" ", "").toCharArray(), false);
+
+    // Example 2: UDP (100.96.167.146, 37069) -> (216.58.197.10, 443)
+    public static final String CT_V4UPDATE_UDP_HEX =
+            // struct nlmsghdr
+            "50000000" +      // length = 80
+            "0001" +          // type = (1 << 8) | 0
+            "0501" +          // flags
+            "01000000" +      // seqno = 1
+            "00000000" +      // pid = 0
+            // struct nfgenmsg
+            "02" +            // nfgen_family  = AF_INET
+            "00" +            // version = NFNETLINK_V0
+            "0000" +          // res_id
+            // struct nlattr
+            "3400" +          // nla_len = 52
+            "0180" +          // nla_type = nested CTA_TUPLE_ORIG
+                // struct nlattr
+                "1400" +      // nla_len = 20
+                "0180" +      // nla_type = nested CTA_TUPLE_IP
+                    "0800 0100 6460A792" +  // nla_type=CTA_IP_V4_SRC, ip=100.96.167.146
+                    "0800 0200 D83AC50A" +  // nla_type=CTA_IP_V4_DST, ip=216.58.197.10
+                // struct nlattr
+                "1C00" +      // nla_len = 28
+                "0280" +      // nla_type = nested CTA_TUPLE_PROTO
+                    "0500 0100 11 000000" +  // nla_type=CTA_PROTO_NUM, proto=17
+                    "0600 0200 90CD 0000" +  // nla_type=CTA_PROTO_SRC_PORT, port=37069 (big endian)
+                    "0600 0300 01BB 0000" +  // nla_type=CTA_PROTO_DST_PORT, port=443 (big endian)
+            // struct nlattr
+            "0800" +          // nla_len = 8
+            "0700" +          // nla_type = CTA_TIMEOUT
+            "000000B4";       // nla_value = 180 (big endian)
+    public static final byte[] CT_V4UPDATE_UDP_BYTES =
+            HexEncoding.decode(CT_V4UPDATE_UDP_HEX.replaceAll(" ", "").toCharArray(), false);
+
+    @Test
+    public void testConntrackIPv4TcpTimeoutUpdate() throws Exception {
+        assumeTrue(USING_LE);
+
+        final byte[] tcp = ConntrackMessage.newIPv4TimeoutUpdateRequest(
+                OsConstants.IPPROTO_TCP,
+                (Inet4Address) InetAddress.getByName("192.168.43.209"), 44333,
+                (Inet4Address) InetAddress.getByName("23.211.13.26"), 443,
+                432000);
+        assertArrayEquals(CT_V4UPDATE_TCP_BYTES, tcp);
+    }
+
+    @Test
+    public void testConntrackIPv4UdpTimeoutUpdate() throws Exception {
+        assumeTrue(USING_LE);
+
+        final byte[] udp = ConntrackMessage.newIPv4TimeoutUpdateRequest(
+                OsConstants.IPPROTO_UDP,
+                (Inet4Address) InetAddress.getByName("100.96.167.146"), 37069,
+                (Inet4Address) InetAddress.getByName("216.58.197.10"), 443,
+                180);
+        assertArrayEquals(CT_V4UPDATE_UDP_BYTES, udp);
+    }
+}
diff --git a/tests/net/java/com/android/server/ConnectivityServiceTest.java b/tests/net/java/com/android/server/ConnectivityServiceTest.java
index f6481cf..8816d43 100644
--- a/tests/net/java/com/android/server/ConnectivityServiceTest.java
+++ b/tests/net/java/com/android/server/ConnectivityServiceTest.java
@@ -64,6 +64,7 @@
 import android.net.NetworkMisc;
 import android.net.NetworkRequest;
 import android.net.NetworkSpecifier;
+import android.net.NetworkUtils;
 import android.net.RouteInfo;
 import android.net.StringNetworkSpecifier;
 import android.net.metrics.IpConnectivityLog;
@@ -88,6 +89,7 @@
 import android.test.mock.MockContentResolver;
 import android.test.suitebuilder.annotation.SmallTest;
 import android.text.TextUtils;
+import android.util.ArraySet;
 import android.util.Log;
 import android.util.LogPrinter;
 
@@ -109,7 +111,10 @@
 import java.net.InetAddress;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Collection;
+import java.util.List;
 import java.util.Objects;
+import java.util.Set;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.LinkedBlockingQueue;
 import java.util.concurrent.TimeUnit;
@@ -304,6 +309,10 @@
         private String mRedirectUrl;
 
         MockNetworkAgent(int transport) {
+            this(transport, new LinkProperties());
+        }
+
+        MockNetworkAgent(int transport, LinkProperties linkProperties) {
             final int type = transportToLegacyType(transport);
             final String typeName = ConnectivityManager.getNetworkTypeName(type);
             mNetworkInfo = new NetworkInfo(type, 0, typeName, "Mock");
@@ -329,7 +338,7 @@
             mHandlerThread.start();
             mNetworkAgent = new NetworkAgent(mHandlerThread.getLooper(), mServiceContext,
                     "Mock-" + typeName, mNetworkInfo, mNetworkCapabilities,
-                    new LinkProperties(), mScore, new NetworkMisc()) {
+                    linkProperties, mScore, new NetworkMisc()) {
                 @Override
                 public void unwanted() { mDisconnected.open(); }
 
@@ -3338,6 +3347,68 @@
         assertException(() -> { mCm.requestRouteToHostAddress(TYPE_NONE, null); }, unsupported);
     }
 
+    @SmallTest
+    public void testLinkPropertiesEnsuresDirectlyConnectedRoutes() {
+        final NetworkRequest networkRequest = new NetworkRequest.Builder()
+                .addTransportType(TRANSPORT_WIFI).build();
+        final TestNetworkCallback networkCallback = new TestNetworkCallback();
+        mCm.registerNetworkCallback(networkRequest, networkCallback);
+
+        LinkProperties lp = new LinkProperties();
+        lp.setInterfaceName("wlan0");
+        LinkAddress myIpv4Address = new LinkAddress("192.168.12.3/24");
+        RouteInfo myIpv4DefaultRoute = new RouteInfo((IpPrefix) null,
+                NetworkUtils.numericToInetAddress("192.168.12.1"), lp.getInterfaceName());
+        lp.addLinkAddress(myIpv4Address);
+        lp.addRoute(myIpv4DefaultRoute);
+
+        // Verify direct routes are added when network agent is first registered in
+        // ConnectivityService.
+        MockNetworkAgent networkAgent = new MockNetworkAgent(TRANSPORT_WIFI, lp);
+        networkAgent.connect(true);
+        networkCallback.expectCallback(CallbackState.AVAILABLE, networkAgent);
+        networkCallback.expectCallback(CallbackState.NETWORK_CAPABILITIES, networkAgent);
+        CallbackInfo cbi = networkCallback.expectCallback(CallbackState.LINK_PROPERTIES,
+                networkAgent);
+        networkCallback.expectCapabilitiesWith(NET_CAPABILITY_VALIDATED, networkAgent);
+        networkCallback.assertNoCallback();
+        checkDirectlyConnectedRoutes(cbi.arg, Arrays.asList(myIpv4Address),
+                Arrays.asList(myIpv4DefaultRoute));
+        checkDirectlyConnectedRoutes(mCm.getLinkProperties(networkAgent.getNetwork()),
+                Arrays.asList(myIpv4Address), Arrays.asList(myIpv4DefaultRoute));
+
+        // Verify direct routes are added during subsequent link properties updates.
+        LinkProperties newLp = new LinkProperties(lp);
+        LinkAddress myIpv6Address1 = new LinkAddress("fe80::cafe/64");
+        LinkAddress myIpv6Address2 = new LinkAddress("2001:db8::2/64");
+        newLp.addLinkAddress(myIpv6Address1);
+        newLp.addLinkAddress(myIpv6Address2);
+        networkAgent.sendLinkProperties(newLp);
+        cbi = networkCallback.expectCallback(CallbackState.LINK_PROPERTIES, networkAgent);
+        networkCallback.assertNoCallback();
+        checkDirectlyConnectedRoutes(cbi.arg,
+                Arrays.asList(myIpv4Address, myIpv6Address1, myIpv6Address2),
+                Arrays.asList(myIpv4DefaultRoute));
+        mCm.unregisterNetworkCallback(networkCallback);
+    }
+
+    private void checkDirectlyConnectedRoutes(Object callbackObj,
+            Collection<LinkAddress> linkAddresses, Collection<RouteInfo> otherRoutes) {
+        assertTrue(callbackObj instanceof LinkProperties);
+        LinkProperties lp = (LinkProperties) callbackObj;
+
+        Set<RouteInfo> expectedRoutes = new ArraySet<>();
+        expectedRoutes.addAll(otherRoutes);
+        for (LinkAddress address : linkAddresses) {
+            RouteInfo localRoute = new RouteInfo(address, null, lp.getInterfaceName());
+            // Duplicates in linkAddresses are considered failures
+            assertTrue(expectedRoutes.add(localRoute));
+        }
+        List<RouteInfo> observedRoutes = lp.getRoutes();
+        assertEquals(expectedRoutes.size(), observedRoutes.size());
+        assertTrue(observedRoutes.containsAll(expectedRoutes));
+    }
+
     private static <T> void assertEmpty(T[] ts) {
         int length = ts.length;
         assertEquals("expected empty array, but length was " + length, 0, length);