diff --git a/core/java/android/net/CaptivePortal.java b/core/java/android/net/CaptivePortal.java
index c2586fa..269bbf2 100644
--- a/core/java/android/net/CaptivePortal.java
+++ b/core/java/android/net/CaptivePortal.java
@@ -15,7 +15,6 @@
  */
 package android.net;
 
-import android.annotation.IntDef;
 import android.annotation.NonNull;
 import android.annotation.RequiresPermission;
 import android.annotation.SystemApi;
@@ -24,8 +23,6 @@
 import android.os.Parcelable;
 import android.os.RemoteException;
 
-import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
-
 /**
  * A class allowing apps handling the {@link ConnectivityManager#ACTION_CAPTIVE_PORTAL_SIGN_IN}
  * activity to indicate to the system different outcomes of captive portal sign in.  This class is
@@ -75,17 +72,6 @@
     private final IBinder mBinder;
 
     /** @hide */
-    @IntDef(value = {
-        MetricsEvent.ACTION_CAPTIVE_PORTAL_LOGIN_ACTIVITY,
-        MetricsEvent.ACTION_CAPTIVE_PORTAL_LOGIN_RESULT_DISMISSED,
-        MetricsEvent.ACTION_CAPTIVE_PORTAL_LOGIN_RESULT_UNWANTED,
-        MetricsEvent.ACTION_CAPTIVE_PORTAL_LOGIN_RESULT_WANTED_AS_IS,
-        MetricsEvent.CAPTIVE_PORTAL_LOGIN_ACTIVITY_SSL_ERROR,
-    })
-    public @interface EventId {
-    }
-
-    /** @hide */
     public CaptivePortal(@NonNull IBinder binder) {
         mBinder = binder;
     }
@@ -176,7 +162,7 @@
      * @hide
      */
     @SystemApi
-    public void logEvent(@EventId int eventId, @NonNull String packageName) {
+    public void logEvent(int eventId, @NonNull String packageName) {
         try {
             ICaptivePortal.Stub.asInterface(mBinder).logEvent(eventId, packageName);
         } catch (RemoteException e) {
diff --git a/core/java/android/net/ConnectivityManager.java b/core/java/android/net/ConnectivityManager.java
index c28a901..cf5d4e5 100644
--- a/core/java/android/net/ConnectivityManager.java
+++ b/core/java/android/net/ConnectivityManager.java
@@ -684,7 +684,7 @@
      * {@hide}
      */
     @Deprecated
-    @UnsupportedAppUsage
+    @SystemApi
     public static final int TYPE_PROXY = 16;
 
     /**
diff --git a/core/java/android/net/LinkProperties.java b/core/java/android/net/LinkProperties.java
index 06046f7..0941e7d 100644
--- a/core/java/android/net/LinkProperties.java
+++ b/core/java/android/net/LinkProperties.java
@@ -81,8 +81,7 @@
 
     private static final int MIN_MTU    = 68;
 
-    /** @hide */
-    public static final int MIN_MTU_V6 = 1280;
+    private static final int MIN_MTU_V6 = 1280;
 
     private static final int MAX_MTU    = 10000;
 
diff --git a/core/java/android/net/NetworkAgent.java b/core/java/android/net/NetworkAgent.java
index 0676ad4..6780167 100644
--- a/core/java/android/net/NetworkAgent.java
+++ b/core/java/android/net/NetworkAgent.java
@@ -51,7 +51,7 @@
  * An agent manages the life cycle of a network. A network starts its
  * life cycle when {@link register} is called on NetworkAgent. The network
  * is then connecting. When full L3 connectivity has been established,
- * the agent shoud call {@link markConnected} to inform the system that
+ * the agent should call {@link markConnected} to inform the system that
  * this network is ready to use. When the network disconnects its life
  * ends and the agent should call {@link unregister}, at which point the
  * system will clean up and free resources.
@@ -94,12 +94,6 @@
     @Nullable
     private volatile Network mNetwork;
 
-    // Whether this NetworkAgent is using the legacy (never unhidden) API. The difference is
-    // that the legacy API uses NetworkInfo to convey the state, while the current API is
-    // exposing methods to manage it and generate it internally instead.
-    // TODO : remove this as soon as all agents have been converted.
-    private final boolean mIsLegacy;
-
     private final Handler mHandler;
     private volatile AsyncChannel mAsyncChannel;
     private final String LOG_TAG;
@@ -110,8 +104,6 @@
     private static final long BW_REFRESH_MIN_WIN_MS = 500;
     private boolean mBandwidthUpdateScheduled = false;
     private AtomicBoolean mBandwidthUpdatePending = new AtomicBoolean(false);
-    // Not used by legacy agents. Non-legacy agents use this to convert the NetworkAgent system API
-    // into the internal API of ConnectivityService.
     @NonNull
     private NetworkInfo mNetworkInfo;
     @NonNull
@@ -337,35 +329,6 @@
      */
     public static final int CMD_REMOVE_KEEPALIVE_PACKET_FILTER = BASE + 17;
 
-    /** @hide TODO: remove and replace usage with the public constructor. */
-    public NetworkAgent(Looper looper, Context context, String logTag, NetworkInfo ni,
-            NetworkCapabilities nc, LinkProperties lp, int score) {
-        this(looper, context, logTag, ni, nc, lp, score, null, NetworkProvider.ID_NONE);
-        // Register done by the constructor called in the previous line
-    }
-
-    /** @hide TODO: remove and replace usage with the public constructor. */
-    public NetworkAgent(Looper looper, Context context, String logTag, NetworkInfo ni,
-            NetworkCapabilities nc, LinkProperties lp, int score, NetworkAgentConfig config) {
-        this(looper, context, logTag, ni, nc, lp, score, config, NetworkProvider.ID_NONE);
-        // Register done by the constructor called in the previous line
-    }
-
-    /** @hide TODO: remove and replace usage with the public constructor. */
-    public NetworkAgent(Looper looper, Context context, String logTag, NetworkInfo ni,
-            NetworkCapabilities nc, LinkProperties lp, int score, int providerId) {
-        this(looper, context, logTag, ni, nc, lp, score, null, providerId);
-        // Register done by the constructor called in the previous line
-    }
-
-    /** @hide TODO: remove and replace usage with the public constructor. */
-    public NetworkAgent(Looper looper, Context context, String logTag, NetworkInfo ni,
-            NetworkCapabilities nc, LinkProperties lp, int score, NetworkAgentConfig config,
-            int providerId) {
-        this(looper, context, logTag, nc, lp, score, config, providerId, ni, true /* legacy */);
-        register();
-    }
-
     private static NetworkInfo getLegacyNetworkInfo(final NetworkAgentConfig config) {
         // The subtype can be changed with (TODO) setLegacySubtype, but it starts
         // with 0 (TelephonyManager.NETWORK_TYPE_UNKNOWN) and an empty description.
@@ -393,7 +356,7 @@
             @NonNull NetworkAgentConfig config, @Nullable NetworkProvider provider) {
         this(looper, context, logTag, nc, lp, score, config,
                 provider == null ? NetworkProvider.ID_NONE : provider.getProviderId(),
-                getLegacyNetworkInfo(config), false /* legacy */);
+                getLegacyNetworkInfo(config));
     }
 
     private static class InitialConfiguration {
@@ -418,11 +381,9 @@
 
     private NetworkAgent(@NonNull Looper looper, @NonNull Context context, @NonNull String logTag,
             @NonNull NetworkCapabilities nc, @NonNull LinkProperties lp, int score,
-            @NonNull NetworkAgentConfig config, int providerId, @NonNull NetworkInfo ni,
-            boolean legacy) {
+            @NonNull NetworkAgentConfig config, int providerId, @NonNull NetworkInfo ni) {
         mHandler = new NetworkAgentHandler(looper);
         LOG_TAG = logTag;
-        mIsLegacy = legacy;
         mNetworkInfo = new NetworkInfo(ni);
         this.providerId = providerId;
         if (ni == null || nc == null || lp == null) {
@@ -696,11 +657,6 @@
      * Call {@link #unregister} to disconnect.
      */
     public void markConnected() {
-        if (mIsLegacy) {
-            throw new UnsupportedOperationException(
-                    "Legacy agents can't call markConnected.");
-        }
-        // |reason| cannot be used by the non-legacy agents
         mNetworkInfo.setDetailedState(NetworkInfo.DetailedState.CONNECTED, null /* reason */,
                 mNetworkInfo.getExtraInfo());
         queueOrSendMessage(EVENT_NETWORK_INFO_CHANGED, mNetworkInfo);
@@ -713,9 +669,6 @@
      * the network is torn down and this agent can no longer be used.
      */
     public void unregister() {
-        if (mIsLegacy) {
-            throw new UnsupportedOperationException("Legacy agents can't call unregister.");
-        }
         // When unregistering an agent nobody should use the extrainfo (or reason) any more.
         mNetworkInfo.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, null /* reason */,
                 null /* extraInfo */);
@@ -735,9 +688,6 @@
      */
     @Deprecated
     public void setLegacySubtype(final int legacySubtype, @NonNull final String legacySubtypeName) {
-        if (mIsLegacy) {
-            throw new UnsupportedOperationException("Legacy agents can't call setLegacySubtype.");
-        }
         mNetworkInfo.setSubtype(legacySubtype, legacySubtypeName);
         queueOrSendMessage(EVENT_NETWORK_INFO_CHANGED, mNetworkInfo);
     }
@@ -760,9 +710,6 @@
      */
     @Deprecated
     public void setLegacyExtraInfo(@Nullable final String extraInfo) {
-        if (mIsLegacy) {
-            throw new UnsupportedOperationException("Legacy agents can't call setLegacyExtraInfo.");
-        }
         mNetworkInfo.setExtraInfo(extraInfo);
         queueOrSendMessage(EVENT_NETWORK_INFO_CHANGED, mNetworkInfo);
     }
@@ -773,9 +720,6 @@
      */
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
     public final void sendNetworkInfo(NetworkInfo networkInfo) {
-        if (!mIsLegacy) {
-            throw new UnsupportedOperationException("Only legacy agents can call sendNetworkInfo.");
-        }
         queueOrSendMessage(EVENT_NETWORK_INFO_CHANGED, new NetworkInfo(networkInfo));
     }
 
diff --git a/core/java/android/net/NetworkCapabilities.java b/core/java/android/net/NetworkCapabilities.java
index 8dad11f..1a37fb9 100644
--- a/core/java/android/net/NetworkCapabilities.java
+++ b/core/java/android/net/NetworkCapabilities.java
@@ -975,6 +975,10 @@
         return mOwnerUid;
     }
 
+    private boolean equalsOwnerUid(@NonNull final NetworkCapabilities nc) {
+        return mOwnerUid == nc.mOwnerUid;
+    }
+
     /**
      * UIDs of packages that are administrators of this network, or empty if none.
      *
@@ -1684,6 +1688,7 @@
                 && equalsTransportInfo(that)
                 && equalsUids(that)
                 && equalsSSID(that)
+                && equalsOwnerUid(that)
                 && equalsPrivateDnsBroken(that)
                 && equalsRequestor(that)
                 && equalsAdministratorUids(that);
@@ -1697,17 +1702,18 @@
                 + ((int) (mUnwantedNetworkCapabilities >> 32) * 7)
                 + ((int) (mTransportTypes & 0xFFFFFFFF) * 11)
                 + ((int) (mTransportTypes >> 32) * 13)
-                + (mLinkUpBandwidthKbps * 17)
-                + (mLinkDownBandwidthKbps * 19)
+                + mLinkUpBandwidthKbps * 17
+                + mLinkDownBandwidthKbps * 19
                 + Objects.hashCode(mNetworkSpecifier) * 23
-                + (mSignalStrength * 29)
-                + Objects.hashCode(mUids) * 31
-                + Objects.hashCode(mSSID) * 37
-                + Objects.hashCode(mTransportInfo) * 41
-                + Objects.hashCode(mPrivateDnsBroken) * 43
-                + Objects.hashCode(mRequestorUid) * 47
-                + Objects.hashCode(mRequestorPackageName) * 53
-                + Arrays.hashCode(mAdministratorUids) * 59;
+                + mSignalStrength * 29
+                + mOwnerUid * 31
+                + Objects.hashCode(mUids) * 37
+                + Objects.hashCode(mSSID) * 41
+                + Objects.hashCode(mTransportInfo) * 43
+                + Objects.hashCode(mPrivateDnsBroken) * 47
+                + Objects.hashCode(mRequestorUid) * 53
+                + Objects.hashCode(mRequestorPackageName) * 59
+                + Arrays.hashCode(mAdministratorUids) * 61;
     }
 
     @Override
diff --git a/core/java/android/net/NetworkProvider.java b/core/java/android/net/NetworkProvider.java
index a17a498..14cb51c 100644
--- a/core/java/android/net/NetworkProvider.java
+++ b/core/java/android/net/NetworkProvider.java
@@ -63,7 +63,7 @@
 
     private final Messenger mMessenger;
     private final String mName;
-    private final ConnectivityManager mCm;
+    private final Context mContext;
 
     private int mProviderId = ID_NONE;
 
@@ -78,8 +78,6 @@
      */
     @SystemApi
     public NetworkProvider(@NonNull Context context, @NonNull Looper looper, @NonNull String name) {
-        mCm = ConnectivityManager.from(context);
-
         Handler handler = new Handler(looper) {
             @Override
             public void handleMessage(Message m) {
@@ -95,6 +93,7 @@
                 }
             }
         };
+        mContext = context;
         mMessenger = new Messenger(handler);
         mName = name;
     }
@@ -158,6 +157,6 @@
     @SystemApi
     @RequiresPermission(android.Manifest.permission.NETWORK_FACTORY)
     public void declareNetworkRequestUnfulfillable(@NonNull NetworkRequest request) {
-        mCm.declareNetworkRequestUnfulfillable(request);
+        ConnectivityManager.from(mContext).declareNetworkRequestUnfulfillable(request);
     }
 }
diff --git a/core/java/android/net/NetworkUtils.java b/core/java/android/net/NetworkUtils.java
index a0faafa..d84ee2a 100644
--- a/core/java/android/net/NetworkUtils.java
+++ b/core/java/android/net/NetworkUtils.java
@@ -35,7 +35,6 @@
 import java.net.InetAddress;
 import java.net.SocketException;
 import java.net.UnknownHostException;
-import java.util.Collection;
 import java.util.Locale;
 import java.util.TreeSet;
 
@@ -342,20 +341,6 @@
     }
 
     /**
-     * Create a string array of host addresses from a collection of InetAddresses
-     * @param addrs a Collection of InetAddresses
-     * @return an array of Strings containing their host addresses
-     */
-    public static String[] makeStrings(Collection<InetAddress> addrs) {
-        String[] result = new String[addrs.size()];
-        int i = 0;
-        for (InetAddress addr : addrs) {
-            result[i++] = addr.getHostAddress();
-        }
-        return result;
-    }
-
-    /**
      * Trim leading zeros from IPv4 address strings
      * Our base libraries will interpret that as octel..
      * Must leave non v4 addresses and host names alone.
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index f056117..a42c864 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -41,6 +41,7 @@
 import static android.net.NetworkCapabilities.NET_CAPABILITY_CAPTIVE_PORTAL;
 import static android.net.NetworkCapabilities.NET_CAPABILITY_FOREGROUND;
 import static android.net.NetworkCapabilities.NET_CAPABILITY_INTERNET;
+import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_CONGESTED;
 import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_METERED;
 import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED;
 import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_ROAMING;
@@ -170,7 +171,6 @@
 import android.util.LocalLog;
 import android.util.Log;
 import android.util.Pair;
-import android.util.Slog;
 import android.util.SparseArray;
 import android.util.SparseIntArray;
 import android.util.Xml;
@@ -186,7 +186,6 @@
 import com.android.internal.net.VpnProfile;
 import com.android.internal.util.ArrayUtils;
 import com.android.internal.util.AsyncChannel;
-import com.android.internal.util.DumpUtils;
 import com.android.internal.util.IndentingPrintWriter;
 import com.android.internal.util.LocationPermissionChecker;
 import com.android.internal.util.MessageUtils;
@@ -1287,7 +1286,7 @@
         if (network == null) {
             return null;
         }
-        return getNetworkAgentInfoForNetId(network.netId);
+        return getNetworkAgentInfoForNetId(network.getNetId());
     }
 
     private NetworkAgentInfo getNetworkAgentInfoForNetId(int netId) {
@@ -1378,7 +1377,7 @@
         }
         final String action = blocked ? "BLOCKED" : "UNBLOCKED";
         mNetworkInfoBlockingLogs.log(String.format(
-                "%s %d(%d) on netId %d", action, nri.mUid, nri.request.requestId, net.netId));
+                "%s %d(%d) on netId %d", action, nri.mUid, nri.request.requestId, net.getNetId()));
     }
 
     /**
@@ -1890,7 +1889,7 @@
             int netId;
             synchronized (nai) {
                 lp = nai.linkProperties;
-                netId = nai.network.netId;
+                netId = nai.network.getNetId();
             }
             boolean ok = addLegacyRouteToHost(lp, addr, netId, uid);
             if (DBG) log("requestRouteToHostAddress ok=" + ok);
@@ -1972,7 +1971,7 @@
     private void registerNetdEventCallback() {
         final IIpConnectivityMetrics ipConnectivityMetrics = mDeps.getIpConnectivityMetrics();
         if (ipConnectivityMetrics == null) {
-            Slog.wtf(TAG, "Missing IIpConnectivityMetrics");
+            Log.wtf(TAG, "Missing IIpConnectivityMetrics");
             return;
         }
 
@@ -2438,7 +2437,7 @@
             if (VDBG || DDBG) log("Setting MTU size: " + iface + ", " + mtu);
             mNetd.interfaceSetMtu(iface, mtu);
         } catch (RemoteException | ServiceSpecificException e) {
-            Slog.e(TAG, "exception in interfaceSetMtu()" + e);
+            loge("exception in interfaceSetMtu()" + e);
         }
     }
 
@@ -2460,7 +2459,7 @@
         if (tcpBufferSizes.equals(mCurrentTcpBufferSizes)) return;
 
         try {
-            if (VDBG || DDBG) Slog.d(TAG, "Setting tx/rx TCP buffers to " + tcpBufferSizes);
+            if (VDBG || DDBG) log("Setting tx/rx TCP buffers to " + tcpBufferSizes);
 
             String rmemValues = String.join(" ", values[0], values[1], values[2]);
             String wmemValues = String.join(" ", values[3], values[4], values[5]);
@@ -2525,9 +2524,21 @@
         PriorityDump.dump(mPriorityDumper, fd, writer, args);
     }
 
+    private boolean checkDumpPermission(Context context, String tag, PrintWriter pw) {
+        if (context.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
+                != PackageManager.PERMISSION_GRANTED) {
+            pw.println("Permission Denial: can't dump " + tag + " from from pid="
+                    + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()
+                    + " due to missing android.permission.DUMP permission");
+            return false;
+        } else {
+            return true;
+        }
+    }
+
     private void doDump(FileDescriptor fd, PrintWriter writer, String[] args, boolean asProto) {
         final IndentingPrintWriter pw = new IndentingPrintWriter(writer, "  ");
-        if (!DumpUtils.checkDumpPermission(mContext, TAG, pw)) return;
+        if (!checkDumpPermission(mContext, TAG, pw)) return;
         if (asProto) return;
 
         if (ArrayUtils.contains(args, DIAG_ARG)) {
@@ -2553,7 +2564,7 @@
         if (defaultNai == null) {
             pw.println("none");
         } else {
-            pw.println(defaultNai.network.netId);
+            pw.println(defaultNai.network.getNetId());
         }
         pw.println();
 
@@ -2690,7 +2701,7 @@
     private NetworkAgentInfo[] networksSortedById() {
         NetworkAgentInfo[] networks = new NetworkAgentInfo[0];
         networks = mNetworkAgentInfos.values().toArray(networks);
-        Arrays.sort(networks, Comparator.comparingInt(nai -> nai.network.netId));
+        Arrays.sort(networks, Comparator.comparingInt(nai -> nai.network.getNetId()));
         return networks;
     }
 
@@ -2761,7 +2772,7 @@
                 case NetworkAgent.EVENT_NETWORK_CAPABILITIES_CHANGED: {
                     NetworkCapabilities networkCapabilities = (NetworkCapabilities) msg.obj;
                     if (networkCapabilities.hasConnectivityManagedCapability()) {
-                        Slog.wtf(TAG, "BUG: " + nai + " has CS-managed capability.");
+                        Log.wtf(TAG, "BUG: " + nai + " has CS-managed capability.");
                     }
                     if (networkCapabilities.hasTransport(TRANSPORT_TEST)) {
                         // Make sure the original object is not mutated. NetworkAgent normally
@@ -2831,7 +2842,7 @@
                             log(nai.toShortString() + " changed underlying networks to "
                                     + Arrays.toString(nai.declaredUnderlyingNetworks));
                         }
-                        updateCapabilities(nai.getCurrentScore(), nai, nai.networkCapabilities);
+                        updateCapabilitiesForNetwork(nai);
                         notifyIfacesChangedForNetworkStats();
                     }
                 }
@@ -2855,8 +2866,7 @@
                     if (probePrivateDnsCompleted) {
                         if (nai.networkCapabilities.isPrivateDnsBroken() != privateDnsBroken) {
                             nai.networkCapabilities.setPrivateDnsBroken(privateDnsBroken);
-                            final int oldScore = nai.getCurrentScore();
-                            updateCapabilities(oldScore, nai, nai.networkCapabilities);
+                            updateCapabilitiesForNetwork(nai);
                         }
                         // Only show the notification when the private DNS is broken and the
                         // PRIVATE_DNS_BROKEN notification hasn't shown since last valid.
@@ -2871,8 +2881,7 @@
                         // done yet. In either case, the networkCapabilities should be updated to
                         // reflect the new status.
                         nai.networkCapabilities.setPrivateDnsBroken(false);
-                        final int oldScore = nai.getCurrentScore();
-                        updateCapabilities(oldScore, nai, nai.networkCapabilities);
+                        updateCapabilitiesForNetwork(nai);
                         nai.networkAgentConfig.hasShownBroken = false;
                     }
                     break;
@@ -2893,7 +2902,6 @@
                     final NetworkAgentInfo nai = getNetworkAgentInfoForNetId(netId);
                     // If captive portal status has changed, update capabilities or disconnect.
                     if (nai != null && (visible != nai.lastCaptivePortalDetected)) {
-                        final int oldScore = nai.getCurrentScore();
                         nai.lastCaptivePortalDetected = visible;
                         nai.everCaptivePortalDetected |= visible;
                         if (nai.lastCaptivePortalDetected &&
@@ -2904,7 +2912,7 @@
                             teardownUnneededNetwork(nai);
                             break;
                         }
-                        updateCapabilities(oldScore, nai, nai.networkCapabilities);
+                        updateCapabilitiesForNetwork(nai);
                     }
                     if (!visible) {
                         // Only clear SIGN_IN and NETWORK_SWITCH notifications here, or else other
@@ -2974,13 +2982,13 @@
                     handleFreshlyValidatedNetwork(nai);
                     // Clear NO_INTERNET, PRIVATE_DNS_BROKEN, PARTIAL_CONNECTIVITY and
                     // LOST_INTERNET notifications if network becomes valid.
-                    mNotifier.clearNotification(nai.network.netId,
+                    mNotifier.clearNotification(nai.network.getNetId(),
                             NotificationType.NO_INTERNET);
-                    mNotifier.clearNotification(nai.network.netId,
+                    mNotifier.clearNotification(nai.network.getNetId(),
                             NotificationType.LOST_INTERNET);
-                    mNotifier.clearNotification(nai.network.netId,
+                    mNotifier.clearNotification(nai.network.getNetId(),
                             NotificationType.PARTIAL_CONNECTIVITY);
-                    mNotifier.clearNotification(nai.network.netId,
+                    mNotifier.clearNotification(nai.network.getNetId(),
                             NotificationType.PRIVATE_DNS_BROKEN);
                     // If network becomes valid, the hasShownBroken should be reset for
                     // that network so that the notification will be fired when the private
@@ -2988,7 +2996,7 @@
                     nai.networkAgentConfig.hasShownBroken = false;
                 }
             } else if (partialConnectivityChanged) {
-                updateCapabilities(nai.getCurrentScore(), nai, nai.networkCapabilities);
+                updateCapabilitiesForNetwork(nai);
             }
             updateInetCondition(nai);
             // Let the NetworkAgent know the state of its network
@@ -3051,7 +3059,7 @@
         private final AutodestructReference<NetworkAgentInfo> mNai;
 
         private NetworkMonitorCallbacks(NetworkAgentInfo nai) {
-            mNetId = nai.network.netId;
+            mNetId = nai.network.getNetId();
             mNai = new AutodestructReference<>(nai);
         }
 
@@ -3066,7 +3074,7 @@
             // Legacy version of notifyNetworkTestedWithExtras.
             // Would only be called if the system has a NetworkStack module older than the
             // framework, which does not happen in practice.
-            Slog.wtf(TAG, "Deprecated notifyNetworkTested called: no action taken");
+            Log.wtf(TAG, "Deprecated notifyNetworkTested called: no action taken");
         }
 
         @Override
@@ -3201,7 +3209,7 @@
         // in order to restart a validation pass from within netd.
         final PrivateDnsConfig cfg = mDnsManager.getPrivateDnsConfig();
         if (cfg.useTls && TextUtils.isEmpty(cfg.hostname)) {
-            updateDnses(nai.linkProperties, null, nai.network.netId);
+            updateDnses(nai.linkProperties, null, nai.network.getNetId());
         }
     }
 
@@ -3234,7 +3242,7 @@
 
     private void updatePrivateDns(NetworkAgentInfo nai, PrivateDnsConfig newCfg) {
         mDnsManager.updatePrivateDns(nai.network, newCfg);
-        updateDnses(nai.linkProperties, null, nai.network.netId);
+        updateDnses(nai.linkProperties, null, nai.network.getNetId());
     }
 
     private void handlePrivateDnsValidationUpdate(PrivateDnsValidationUpdate update) {
@@ -3330,9 +3338,9 @@
                 if (nai != null) {
                     final boolean wasDefault = isDefaultNetwork(nai);
                     synchronized (mNetworkForNetId) {
-                        mNetworkForNetId.remove(nai.network.netId);
+                        mNetworkForNetId.remove(nai.network.getNetId());
                     }
-                    mNetIdManager.releaseNetId(nai.network.netId);
+                    mNetIdManager.releaseNetId(nai.network.getNetId());
                     // Just in case.
                     mLegacyTypeTracker.remove(nai, wasDefault);
                 }
@@ -3362,7 +3370,7 @@
             log(nai.toShortString() + " disconnected, was satisfying " + nai.numNetworkRequests());
         }
         // Clear all notifications of this network.
-        mNotifier.clearNotification(nai.network.netId);
+        mNotifier.clearNotification(nai.network.getNetId());
         // A network agent has disconnected.
         // TODO - if we move the logic to the network agent (have them disconnect
         // because they lost all their requests or because their score isn't good)
@@ -3399,14 +3407,15 @@
         synchronized (mNetworkForNetId) {
             // Remove the NetworkAgent, but don't mark the netId as
             // available until we've told netd to delete it below.
-            mNetworkForNetId.remove(nai.network.netId);
+            mNetworkForNetId.remove(nai.network.getNetId());
         }
         // Remove all previously satisfied requests.
         for (int i = 0; i < nai.numNetworkRequests(); i++) {
             NetworkRequest request = nai.requestAt(i);
             final NetworkRequestInfo nri = mNetworkRequests.get(request);
             final NetworkAgentInfo currentNetwork = nri.mSatisfier;
-            if (currentNetwork != null && currentNetwork.network.netId == nai.network.netId) {
+            if (currentNetwork != null
+                    && currentNetwork.network.getNetId() == nai.network.getNetId()) {
                 nri.mSatisfier = null;
                 sendUpdatedScoreToFactories(request, null);
             }
@@ -3436,26 +3445,26 @@
             destroyNativeNetwork(nai);
             mDnsManager.removeNetwork(nai.network);
         }
-        mNetIdManager.releaseNetId(nai.network.netId);
+        mNetIdManager.releaseNetId(nai.network.getNetId());
     }
 
     private boolean createNativeNetwork(@NonNull NetworkAgentInfo networkAgent) {
         try {
             // This should never fail.  Specifying an already in use NetID will cause failure.
             if (networkAgent.isVPN()) {
-                mNetd.networkCreateVpn(networkAgent.network.netId,
+                mNetd.networkCreateVpn(networkAgent.network.getNetId(),
                         (networkAgent.networkAgentConfig == null
                                 || !networkAgent.networkAgentConfig.allowBypass));
             } else {
-                mNetd.networkCreatePhysical(networkAgent.network.netId,
+                mNetd.networkCreatePhysical(networkAgent.network.getNetId(),
                         getNetworkPermission(networkAgent.networkCapabilities));
             }
-            mDnsResolver.createNetworkCache(networkAgent.network.netId);
-            mDnsManager.updateTransportsForNetwork(networkAgent.network.netId,
+            mDnsResolver.createNetworkCache(networkAgent.network.getNetId());
+            mDnsManager.updateTransportsForNetwork(networkAgent.network.getNetId(),
                     networkAgent.networkCapabilities.getTransportTypes());
             return true;
         } catch (RemoteException | ServiceSpecificException e) {
-            loge("Error creating network " + networkAgent.network.netId + ": "
+            loge("Error creating network " + networkAgent.network.getNetId() + ": "
                     + e.getMessage());
             return false;
         }
@@ -3463,8 +3472,8 @@
 
     private void destroyNativeNetwork(@NonNull NetworkAgentInfo networkAgent) {
         try {
-            mNetd.networkDestroy(networkAgent.network.netId);
-            mDnsResolver.destroyNetworkCache(networkAgent.network.netId);
+            mNetd.networkDestroy(networkAgent.network.getNetId());
+            mDnsResolver.destroyNetworkCache(networkAgent.network.getNetId());
         } catch (RemoteException | ServiceSpecificException e) {
             loge("Exception destroying network: " + e);
         }
@@ -3543,7 +3552,7 @@
                 numRequests = nai.numForegroundNetworkRequests();
                 break;
             default:
-                Slog.wtf(TAG, "Invalid reason. Cannot happen.");
+                Log.wtf(TAG, "Invalid reason. Cannot happen.");
                 return true;
         }
 
@@ -3656,7 +3665,7 @@
                 nri.mSatisfier = null;
                 if (!wasBackgroundNetwork && nai.isBackgroundNetwork()) {
                     // Went from foreground to background.
-                    updateCapabilities(nai.getCurrentScore(), nai, nai.networkCapabilities);
+                    updateCapabilitiesForNetwork(nai);
                 }
             }
 
@@ -3705,7 +3714,7 @@
         synchronized (mUidToNetworkRequestCount) {
             final int requests = mUidToNetworkRequestCount.get(nri.mUid, 0);
             if (requests < 1) {
-                Slog.wtf(TAG, "BUG: too small request count " + requests + " for UID " + nri.mUid);
+                Log.wtf(TAG, "BUG: too small request count " + requests + " for UID " + nri.mUid);
             } else if (requests == 1) {
                 mUidToNetworkRequestCount.removeAt(mUidToNetworkRequestCount.indexOfKey(nri.mUid));
             } else {
@@ -3750,7 +3759,7 @@
         }
 
         if (!nai.networkAgentConfig.explicitlySelected) {
-            Slog.wtf(TAG, "BUG: setAcceptUnvalidated non non-explicitly selected network");
+            Log.wtf(TAG, "BUG: setAcceptUnvalidated non non-explicitly selected network");
         }
 
         if (accept != nai.networkAgentConfig.acceptUnvalidated) {
@@ -4020,13 +4029,13 @@
                 highPriority = nai.networkAgentConfig.explicitlySelected;
                 break;
             default:
-                Slog.wtf(TAG, "Unknown notification type " + type);
+                Log.wtf(TAG, "Unknown notification type " + type);
                 return;
         }
 
         Intent intent = new Intent(action);
         if (type != NotificationType.PRIVATE_DNS_BROKEN) {
-            intent.setData(Uri.fromParts("netId", Integer.toString(nai.network.netId), null));
+            intent.setData(Uri.fromParts("netId", Integer.toString(nai.network.getNetId()), null));
             intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
             // Some OEMs have their own Settings package. Thus, need to get the current using
             // Settings package name instead of just use default name "com.android.settings".
@@ -4041,7 +4050,8 @@
                 intent,
                 PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_IMMUTABLE);
 
-        mNotifier.showNotification(nai.network.netId, type, nai, null, pendingIntent, highPriority);
+        mNotifier.showNotification(
+                nai.network.getNetId(), type, nai, null, pendingIntent, highPriority);
     }
 
     private boolean shouldPromptUnvalidated(NetworkAgentInfo nai) {
@@ -4342,7 +4352,7 @@
         synchronized (this) {
             if (!mNetTransitionWakeLock.isHeld()) {
                 mWakelockLogs.log(String.format("RELEASE: already released (%s)", event));
-                Slog.w(TAG, "expected Net Transition WakeLock to be held");
+                Log.w(TAG, "expected Net Transition WakeLock to be held");
                 return;
             }
             mNetTransitionWakeLock.release();
@@ -4407,7 +4417,7 @@
             return;
         }
         if (DBG) {
-            int netid = nai.network.netId;
+            int netid = nai.network.getNetId();
             log("reportNetworkConnectivity(" + netid + ", " + hasConnectivity + ") by " + uid);
         }
         // Validating a network that has not yet connected could result in a call to
@@ -4442,7 +4452,7 @@
                 return null;
             }
             return getLinkPropertiesProxyInfo(activeNetwork);
-        } else if (mDeps.queryUserAccess(Binder.getCallingUid(), network.netId)) {
+        } else if (mDeps.queryUserAccess(Binder.getCallingUid(), network.getNetId())) {
             // Don't call getLinkProperties() as it requires ACCESS_NETWORK_STATE permission, which
             // caller may not have.
             return getLinkPropertiesProxyInfo(network);
@@ -4514,7 +4524,7 @@
 
         @Override
         public void onChange(boolean selfChange) {
-            Slog.wtf(TAG, "Should never be reached.");
+            Log.wtf(TAG, "Should never be reached.");
         }
 
         @Override
@@ -4529,15 +4539,19 @@
     }
 
     private static void log(String s) {
-        Slog.d(TAG, s);
+        Log.d(TAG, s);
+    }
+
+    private static void logw(String s) {
+        Log.w(TAG, s);
     }
 
     private static void loge(String s) {
-        Slog.e(TAG, s);
+        Log.e(TAG, s);
     }
 
     private static void loge(String s, Throwable t) {
-        Slog.e(TAG, s, t);
+        Log.e(TAG, s, t);
     }
 
     /**
@@ -4816,7 +4830,7 @@
         ensureRunningOnConnectivityServiceThread();
         for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) {
             if (nai.supportsUnderlyingNetworks()) {
-                updateCapabilities(nai.getCurrentScore(), nai, nai.networkCapabilities);
+                updateCapabilitiesForNetwork(nai);
             }
         }
     }
@@ -4824,7 +4838,7 @@
     @Override
     public boolean updateLockdownVpn() {
         if (Binder.getCallingUid() != Process.SYSTEM_UID) {
-            Slog.w(TAG, "Lockdown VPN only available to AID_SYSTEM");
+            logw("Lockdown VPN only available to AID_SYSTEM");
             return false;
         }
 
@@ -4834,21 +4848,21 @@
             if (mLockdownEnabled) {
                 byte[] profileTag = mKeyStore.get(Credentials.LOCKDOWN_VPN);
                 if (profileTag == null) {
-                    Slog.e(TAG, "Lockdown VPN configured but cannot be read from keystore");
+                    loge("Lockdown VPN configured but cannot be read from keystore");
                     return false;
                 }
                 String profileName = new String(profileTag);
                 final VpnProfile profile = VpnProfile.decode(
                         profileName, mKeyStore.get(Credentials.VPN + profileName));
                 if (profile == null) {
-                    Slog.e(TAG, "Lockdown VPN configured invalid profile " + profileName);
+                    loge("Lockdown VPN configured invalid profile " + profileName);
                     setLockdownTracker(null);
                     return true;
                 }
                 int user = UserHandle.getUserId(Binder.getCallingUid());
                 Vpn vpn = mVpns.get(user);
                 if (vpn == null) {
-                    Slog.w(TAG, "VPN for user " + user + " not ready yet. Skipping lockdown");
+                    logw("VPN for user " + user + " not ready yet. Skipping lockdown");
                     return false;
                 }
                 setLockdownTracker(new LockdownVpnTracker(mContext, this, mHandler, vpn, profile));
@@ -4908,7 +4922,7 @@
             if (vpn == null) {
                 // Shouldn't happen as all code paths that point here should have checked the Vpn
                 // exists already.
-                Slog.wtf(TAG, "User " + userId + " has no Vpn configuration");
+                Log.wtf(TAG, "User " + userId + " has no Vpn configuration");
                 return false;
             }
 
@@ -4924,7 +4938,7 @@
         synchronized (mVpns) {
             Vpn vpn = mVpns.get(userId);
             if (vpn == null) {
-                Slog.w(TAG, "User " + userId + " has no Vpn configuration");
+                logw("User " + userId + " has no Vpn configuration");
                 return false;
             }
             return vpn.isAlwaysOnPackageSupported(packageName, mKeyStore);
@@ -4945,7 +4959,7 @@
 
             Vpn vpn = mVpns.get(userId);
             if (vpn == null) {
-                Slog.w(TAG, "User " + userId + " has no Vpn configuration");
+                logw("User " + userId + " has no Vpn configuration");
                 return false;
             }
             if (!vpn.setAlwaysOnPackage(packageName, lockdown, lockdownWhitelist, mKeyStore)) {
@@ -4967,7 +4981,7 @@
         synchronized (mVpns) {
             Vpn vpn = mVpns.get(userId);
             if (vpn == null) {
-                Slog.w(TAG, "User " + userId + " has no Vpn configuration");
+                logw("User " + userId + " has no Vpn configuration");
                 return null;
             }
             return vpn.getAlwaysOnPackage();
@@ -4982,7 +4996,7 @@
         synchronized (mVpns) {
             Vpn vpn = mVpns.get(userId);
             if (vpn == null) {
-                Slog.w(TAG, "User " + userId + " has no Vpn configuration");
+                logw("User " + userId + " has no Vpn configuration");
                 return false;
             }
             return vpn.getLockdown();
@@ -4997,7 +5011,7 @@
         synchronized (mVpns) {
             Vpn vpn = mVpns.get(userId);
             if (vpn == null) {
-                Slog.w(TAG, "User " + userId + " has no Vpn configuration");
+                logw("User " + userId + " has no Vpn configuration");
                 return null;
             }
             return vpn.getLockdownAllowlist();
@@ -5182,7 +5196,7 @@
 
     private void onPackageReplaced(String packageName, int uid) {
         if (TextUtils.isEmpty(packageName) || uid < 0) {
-            Slog.wtf(TAG, "Invalid package in onPackageReplaced: " + packageName + " | " + uid);
+            Log.wtf(TAG, "Invalid package in onPackageReplaced: " + packageName + " | " + uid);
             return;
         }
         final int userId = UserHandle.getUserId(uid);
@@ -5193,7 +5207,7 @@
             }
             // Legacy always-on VPN won't be affected since the package name is not set.
             if (TextUtils.equals(vpn.getAlwaysOnPackage(), packageName)) {
-                Slog.d(TAG, "Restarting always-on VPN package " + packageName + " for user "
+                log("Restarting always-on VPN package " + packageName + " for user "
                         + userId);
                 vpn.startAlwaysOnVpn(mKeyStore);
             }
@@ -5202,7 +5216,7 @@
 
     private void onPackageRemoved(String packageName, int uid, boolean isReplacing) {
         if (TextUtils.isEmpty(packageName) || uid < 0) {
-            Slog.wtf(TAG, "Invalid package in onPackageRemoved: " + packageName + " | " + uid);
+            Log.wtf(TAG, "Invalid package in onPackageRemoved: " + packageName + " | " + uid);
             return;
         }
 
@@ -5214,7 +5228,7 @@
             }
             // Legacy always-on VPN won't be affected since the package name is not set.
             if (TextUtils.equals(vpn.getAlwaysOnPackage(), packageName) && !isReplacing) {
-                Slog.d(TAG, "Removing always-on VPN package " + packageName + " for user "
+                log("Removing always-on VPN package " + packageName + " for user "
                         + userId);
                 vpn.setAlwaysOnPackage(null, false, null, mKeyStore);
             }
@@ -5649,7 +5663,7 @@
             return false;
         }
         synchronized (mNetworkForNetId) {
-            nai = mNetworkForNetId.get(network.netId);
+            nai = mNetworkForNetId.get(network.getNetId());
         }
         if (nai != null) {
             nai.asyncChannel.sendMessage(android.net.NetworkAgent.CMD_REQUEST_BANDWIDTH_UPDATE);
@@ -5830,7 +5844,7 @@
             // Avoid creating duplicates. even if an app makes a direct AIDL call.
             // This will never happen if an app calls ConnectivityManager#registerNetworkProvider,
             // as that will throw if a duplicate provider is registered.
-            Slog.e(TAG, "Attempt to register existing NetworkProviderInfo "
+            loge("Attempt to register existing NetworkProviderInfo "
                     + mNetworkProviderInfos.get(npi.messenger).name);
             return;
         }
@@ -6029,7 +6043,7 @@
         if (VDBG) log("Got NetworkAgent Messenger");
         mNetworkAgentInfos.put(nai.messenger, nai);
         synchronized (mNetworkForNetId) {
-            mNetworkForNetId.put(nai.network.netId, nai);
+            mNetworkForNetId.put(nai.network.getNetId(), nai);
         }
 
         try {
@@ -6048,6 +6062,7 @@
      * Stores into |nai| any data coming from the agent that might also be written to the network's
      * LinkProperties by ConnectivityService itself. This ensures that the data provided by the
      * agent is not lost when updateLinkProperties is called.
+     * This method should never alter the agent's LinkProperties, only store data in |nai|.
      */
     private void processLinkPropertiesFromAgent(NetworkAgentInfo nai, LinkProperties lp) {
         lp.ensureDirectlyConnectedRoutes();
@@ -6056,7 +6071,7 @@
 
     private void updateLinkProperties(NetworkAgentInfo networkAgent, LinkProperties newLp,
             @NonNull LinkProperties oldLp) {
-        int netId = networkAgent.network.netId;
+        int netId = networkAgent.network.getNetId();
 
         // The NetworkAgent does not know whether clatd is running on its network or not, or whether
         // a NAT64 prefix was discovered by the DNS resolver. Before we do anything else, make sure
@@ -6337,7 +6352,7 @@
         final int newPermission = getNetworkPermission(newNc);
         if (oldPermission != newPermission && nai.created && !nai.isVPN()) {
             try {
-                mNetd.networkSetPermissionForNetwork(nai.network.netId, newPermission);
+                mNetd.networkSetPermissionForNetwork(nai.network.getNetId(), newPermission);
             } catch (RemoteException | ServiceSpecificException e) {
                 loge("Exception in networkSetPermissionForNetwork: " + e);
             }
@@ -6349,23 +6364,82 @@
      * Stores into |nai| any data coming from the agent that might also be written to the network's
      * NetworkCapabilities by ConnectivityService itself. This ensures that the data provided by the
      * agent is not lost when updateCapabilities is called.
+     * This method should never alter the agent's NetworkCapabilities, only store data in |nai|.
      */
     private void processCapabilitiesFromAgent(NetworkAgentInfo nai, NetworkCapabilities nc) {
         nai.declaredMetered = !nc.hasCapability(NET_CAPABILITY_NOT_METERED);
+        if (nai.networkCapabilities.getOwnerUid() != nc.getOwnerUid()) {
+            Log.e(TAG, nai.toShortString() + ": ignoring attempt to change owner from "
+                    + nai.networkCapabilities.getOwnerUid() + " to " + nc.getOwnerUid());
+            nc.setOwnerUid(nai.networkCapabilities.getOwnerUid());
+        }
     }
 
-    /** Propagates to |nc| the capabilities declared by the underlying networks of |nai|. */
-    private void mixInUnderlyingCapabilities(NetworkAgentInfo nai, NetworkCapabilities nc) {
-        Network[] underlyingNetworks = nai.declaredUnderlyingNetworks;
-        Network defaultNetwork = getNetwork(getDefaultNetwork());
+    /** Modifies |caps| based on the capabilities of the specified underlying networks. */
+    @VisibleForTesting
+    void applyUnderlyingCapabilities(@Nullable Network[] underlyingNetworks,
+            @NonNull NetworkCapabilities caps,  boolean declaredMetered) {
+        final Network defaultNetwork = getNetwork(getDefaultNetwork());
         if (underlyingNetworks == null && defaultNetwork != null) {
             // null underlying networks means to track the default.
             underlyingNetworks = new Network[] { defaultNetwork };
         }
+        int[] transportTypes = new int[] { NetworkCapabilities.TRANSPORT_VPN };
+        int downKbps = NetworkCapabilities.LINK_BANDWIDTH_UNSPECIFIED;
+        int upKbps = NetworkCapabilities.LINK_BANDWIDTH_UNSPECIFIED;
+        boolean metered = declaredMetered; // metered if any underlying is metered, or agentMetered
+        boolean roaming = false; // roaming if any underlying is roaming
+        boolean congested = false; // congested if any underlying is congested
+        boolean suspended = true; // suspended if all underlying are suspended
 
-        // TODO(b/124469351): Get capabilities directly from ConnectivityService instead.
-        final ConnectivityManager cm = mContext.getSystemService(ConnectivityManager.class);
-        Vpn.applyUnderlyingCapabilities(cm, underlyingNetworks, nc, nai.declaredMetered);
+        boolean hadUnderlyingNetworks = false;
+        if (null != underlyingNetworks) {
+            for (Network underlyingNetwork : underlyingNetworks) {
+                final NetworkAgentInfo underlying =
+                        getNetworkAgentInfoForNetwork(underlyingNetwork);
+                if (underlying == null) continue;
+
+                final NetworkCapabilities underlyingCaps = underlying.networkCapabilities;
+                hadUnderlyingNetworks = true;
+                for (int underlyingType : underlyingCaps.getTransportTypes()) {
+                    transportTypes = ArrayUtils.appendInt(transportTypes, underlyingType);
+                }
+
+                // Merge capabilities of this underlying network. For bandwidth, assume the
+                // worst case.
+                downKbps = NetworkCapabilities.minBandwidth(downKbps,
+                        underlyingCaps.getLinkDownstreamBandwidthKbps());
+                upKbps = NetworkCapabilities.minBandwidth(upKbps,
+                        underlyingCaps.getLinkUpstreamBandwidthKbps());
+                // If this underlying network is metered, the VPN is metered (it may cost money
+                // to send packets on this network).
+                metered |= !underlyingCaps.hasCapability(NET_CAPABILITY_NOT_METERED);
+                // If this underlying network is roaming, the VPN is roaming (the billing structure
+                // is different than the usual, local one).
+                roaming |= !underlyingCaps.hasCapability(NET_CAPABILITY_NOT_ROAMING);
+                // If this underlying network is congested, the VPN is congested (the current
+                // condition of the network affects the performance of this network).
+                congested |= !underlyingCaps.hasCapability(NET_CAPABILITY_NOT_CONGESTED);
+                // If this network is not suspended, the VPN is not suspended (the VPN
+                // is able to transfer some data).
+                suspended &= !underlyingCaps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED);
+            }
+        }
+        if (!hadUnderlyingNetworks) {
+            // No idea what the underlying networks are; assume reasonable defaults
+            metered = true;
+            roaming = false;
+            congested = false;
+            suspended = false;
+        }
+
+        caps.setTransportTypes(transportTypes);
+        caps.setLinkDownstreamBandwidthKbps(downKbps);
+        caps.setLinkUpstreamBandwidthKbps(upKbps);
+        caps.setCapability(NET_CAPABILITY_NOT_METERED, !metered);
+        caps.setCapability(NET_CAPABILITY_NOT_ROAMING, !roaming);
+        caps.setCapability(NET_CAPABILITY_NOT_CONGESTED, !congested);
+        caps.setCapability(NET_CAPABILITY_NOT_SUSPENDED, !suspended);
     }
 
     /**
@@ -6387,7 +6461,7 @@
             // stop being matched by the updated agent.
             String diff = nai.networkCapabilities.describeImmutableDifferences(nc);
             if (!TextUtils.isEmpty(diff)) {
-                Slog.wtf(TAG, "BUG: " + nai + " lost immutable capabilities:" + diff);
+                Log.wtf(TAG, "BUG: " + nai + " lost immutable capabilities:" + diff);
             }
         }
 
@@ -6422,7 +6496,7 @@
         }
 
         if (nai.supportsUnderlyingNetworks()) {
-            mixInUnderlyingCapabilities(nai, newNc);
+            applyUnderlyingCapabilities(nai.declaredUnderlyingNetworks, newNc, nai.declaredMetered);
         }
 
         return newNc;
@@ -6508,10 +6582,16 @@
         }
 
         if (!newNc.equalsTransportTypes(prevNc)) {
-            mDnsManager.updateTransportsForNetwork(nai.network.netId, newNc.getTransportTypes());
+            mDnsManager.updateTransportsForNetwork(
+                    nai.network.getNetId(), newNc.getTransportTypes());
         }
     }
 
+    /** Convenience method to update the capabilities for a given network. */
+    private void updateCapabilitiesForNetwork(NetworkAgentInfo nai) {
+        updateCapabilities(nai.getCurrentScore(), nai, nai.networkCapabilities);
+    }
+
     /**
      * Returns whether VPN isolation (ingress interface filtering) should be applied on the given
      * network.
@@ -6562,12 +6642,12 @@
             if (!newRanges.isEmpty()) {
                 final UidRange[] addedRangesArray = new UidRange[newRanges.size()];
                 newRanges.toArray(addedRangesArray);
-                mNMS.addVpnUidRanges(nai.network.netId, addedRangesArray);
+                mNMS.addVpnUidRanges(nai.network.getNetId(), addedRangesArray);
             }
             if (!prevRanges.isEmpty()) {
                 final UidRange[] removedRangesArray = new UidRange[prevRanges.size()];
                 prevRanges.toArray(removedRangesArray);
-                mNMS.removeVpnUidRanges(nai.network.netId, removedRangesArray);
+                mNMS.removeVpnUidRanges(nai.network.getNetId(), removedRangesArray);
             }
             final boolean wasFiltering = requiresVpnIsolation(nai, prevNc, nai.linkProperties);
             final boolean shouldFilter = requiresVpnIsolation(nai, newNc, nai.linkProperties);
@@ -6598,7 +6678,7 @@
     public void handleUpdateLinkProperties(NetworkAgentInfo nai, LinkProperties newLp) {
         ensureRunningOnConnectivityServiceThread();
 
-        if (getNetworkAgentInfoForNetId(nai.network.netId) != nai) {
+        if (getNetworkAgentInfoForNetId(nai.network.getNetId()) != nai) {
             // Ignore updates for disconnected networks
             return;
         }
@@ -6797,8 +6877,7 @@
             teardownUnneededNetwork(oldNetwork);
         } else {
             // Put the network in the background.
-            updateCapabilities(oldNetwork.getCurrentScore(), oldNetwork,
-                    oldNetwork.networkCapabilities);
+            updateCapabilitiesForNetwork(oldNetwork);
         }
     }
 
@@ -6809,7 +6888,7 @@
 
         try {
             if (null != newNetwork) {
-                mNetd.networkSetDefault(newNetwork.network.netId);
+                mNetd.networkSetDefault(newNetwork.network.getNetId());
             } else {
                 mNetd.networkClearDefault();
             }
@@ -6872,8 +6951,8 @@
 
             public String toString() {
                 return mRequest.mRequests.get(0).requestId + " : "
-                        + (null != mOldNetwork ? mOldNetwork.network.netId : "null")
-                        + " → " + (null != mNewNetwork ? mNewNetwork.network.netId : "null");
+                        + (null != mOldNetwork ? mOldNetwork.network.getNetId() : "null")
+                        + " → " + (null != mNewNetwork ? mNewNetwork.network.getNetId() : "null");
             }
         }
 
@@ -6947,7 +7026,7 @@
             }
             newSatisfier.unlingerRequest(nri.request);
             if (!newSatisfier.addRequest(nri.request)) {
-                Slog.wtf(TAG, "BUG: " + newSatisfier.toShortString() + " already has "
+                Log.wtf(TAG, "BUG: " + newSatisfier.toShortString() + " already has "
                         + nri.request);
             }
         } else {
@@ -7295,7 +7374,7 @@
             networkAgent.everConnected = true;
 
             if (networkAgent.linkProperties == null) {
-                Slog.wtf(TAG, networkAgent.toShortString() + " connected with null LinkProperties");
+                Log.wtf(TAG, networkAgent.toShortString() + " connected with null LinkProperties");
             }
 
             // NetworkCapabilities need to be set before sending the private DNS config to
@@ -7737,7 +7816,7 @@
 
     private void logNetworkEvent(NetworkAgentInfo nai, int evtype) {
         int[] transports = nai.networkCapabilities.getTransportTypes();
-        mMetricsLog.log(nai.network.netId, transports, new NetworkEvent(evtype));
+        mMetricsLog.log(nai.network.getNetId(), transports, new NetworkEvent(evtype));
     }
 
     private static boolean toBool(int encodedBoolean) {
@@ -8143,8 +8222,10 @@
 
         final NetworkRequestInfo nri = cbInfo.mRequestInfo;
 
-        if (uid != nri.mUid) {
-            if (VDBG) loge("Different uid than registrant attempting to unregister cb");
+        // Caller's UID must either be the registrants (if they are unregistering) or the System's
+        // (if the Binder died)
+        if (uid != nri.mUid && uid != Process.SYSTEM_UID) {
+            if (DBG) loge("Uid(" + uid + ") not registrant's (" + nri.mUid + ") or System's");
             return;
         }
 
@@ -8357,6 +8438,6 @@
                     KEY_TCP_METRICS_COLLECTION_PERIOD_MILLIS);
         }
 
-        notifyDataStallSuspected(p, network.netId);
+        notifyDataStallSuspected(p, network.getNetId());
     }
 }
diff --git a/services/core/java/com/android/server/TestNetworkService.java b/services/core/java/com/android/server/TestNetworkService.java
index d6bd5a1..655d8ab 100644
--- a/services/core/java/com/android/server/TestNetworkService.java
+++ b/services/core/java/com/android/server/TestNetworkService.java
@@ -29,9 +29,9 @@
 import android.net.LinkAddress;
 import android.net.LinkProperties;
 import android.net.NetworkAgent;
+import android.net.NetworkAgentConfig;
 import android.net.NetworkCapabilities;
-import android.net.NetworkInfo;
-import android.net.NetworkInfo.DetailedState;
+import android.net.NetworkProvider;
 import android.net.RouteInfo;
 import android.net.StringNetworkSpecifier;
 import android.net.TestNetworkInterface;
@@ -61,8 +61,8 @@
 
 /** @hide */
 class TestNetworkService extends ITestNetworkManager.Stub {
-    @NonNull private static final String TAG = TestNetworkService.class.getSimpleName();
-    @NonNull private static final String TEST_NETWORK_TYPE = "TEST_NETWORK";
+    @NonNull private static final String TEST_NETWORK_LOGTAG = "TestNetworkAgent";
+    @NonNull private static final String TEST_NETWORK_PROVIDER_NAME = "TestNetworkProvider";
     @NonNull private static final AtomicInteger sTestTunIndex = new AtomicInteger();
 
     @NonNull private final Context mContext;
@@ -72,6 +72,9 @@
     @NonNull private final HandlerThread mHandlerThread;
     @NonNull private final Handler mHandler;
 
+    @NonNull private final ConnectivityManager mCm;
+    @NonNull private final NetworkProvider mNetworkProvider;
+
     // Native method stubs
     private static native int jniCreateTunTap(boolean isTun, @NonNull String iface);
 
@@ -85,6 +88,10 @@
         mContext = Objects.requireNonNull(context, "missing Context");
         mNMS = Objects.requireNonNull(netManager, "missing INetworkManagementService");
         mNetd = Objects.requireNonNull(NetdService.getInstance(), "could not get netd instance");
+        mCm = mContext.getSystemService(ConnectivityManager.class);
+        mNetworkProvider = new NetworkProvider(mContext, mHandler.getLooper(),
+                TEST_NETWORK_PROVIDER_NAME);
+        mCm.registerNetworkProvider(mNetworkProvider);
     }
 
     /**
@@ -150,9 +157,6 @@
         private static final int NETWORK_SCORE = 1; // Use a low, non-zero score.
 
         private final int mUid;
-        @NonNull private final NetworkInfo mNi;
-        @NonNull private final NetworkCapabilities mNc;
-        @NonNull private final LinkProperties mLp;
 
         @GuardedBy("mBinderLock")
         @NonNull
@@ -161,21 +165,17 @@
         @NonNull private final Object mBinderLock = new Object();
 
         private TestNetworkAgent(
-                @NonNull Looper looper,
                 @NonNull Context context,
-                @NonNull NetworkInfo ni,
+                @NonNull Looper looper,
                 @NonNull NetworkCapabilities nc,
                 @NonNull LinkProperties lp,
+                @NonNull NetworkAgentConfig config,
                 int uid,
-                @NonNull IBinder binder)
+                @NonNull IBinder binder,
+                @NonNull NetworkProvider np)
                 throws RemoteException {
-            super(looper, context, TEST_NETWORK_TYPE, ni, nc, lp, NETWORK_SCORE);
-
+            super(context, looper, TEST_NETWORK_LOGTAG, nc, lp, NETWORK_SCORE, config, np);
             mUid = uid;
-            mNi = ni;
-            mNc = nc;
-            mLp = lp;
-
             synchronized (mBinderLock) {
                 mBinder = binder; // Binder null-checks in create()
 
@@ -203,9 +203,7 @@
         }
 
         private void teardown() {
-            mNi.setDetailedState(DetailedState.DISCONNECTED, null, null);
-            mNi.setIsAvailable(false);
-            sendNetworkInfo(mNi);
+            unregister();
 
             // Synchronize on mBinderLock to ensure that unlinkToDeath is never called more than
             // once (otherwise it could throw an exception)
@@ -219,7 +217,7 @@
             // Has to be in TestNetworkAgent to ensure all teardown codepaths properly clean up
             // resources, even for binder death or unwanted calls.
             synchronized (mTestNetworkTracker) {
-                mTestNetworkTracker.remove(getNetwork().netId);
+                mTestNetworkTracker.remove(getNetwork().getNetId());
             }
         }
     }
@@ -238,11 +236,6 @@
         Objects.requireNonNull(context, "missing Context");
         // iface and binder validity checked by caller
 
-        // Build network info with special testing type
-        NetworkInfo ni = new NetworkInfo(ConnectivityManager.TYPE_TEST, 0, TEST_NETWORK_TYPE, "");
-        ni.setDetailedState(DetailedState.CONNECTED, null, null);
-        ni.setIsAvailable(true);
-
         // Build narrow set of NetworkCapabilities, useful only for testing
         NetworkCapabilities nc = new NetworkCapabilities();
         nc.clearAll(); // Remove default capabilities.
@@ -290,7 +283,12 @@
             lp.addRoute(new RouteInfo(new IpPrefix(Inet6Address.ANY, 0), null, iface));
         }
 
-        return new TestNetworkAgent(looper, context, ni, nc, lp, callingUid, binder);
+        final TestNetworkAgent agent = new TestNetworkAgent(context, looper, nc, lp,
+                new NetworkAgentConfig.Builder().build(), callingUid, binder,
+                mNetworkProvider);
+        agent.register();
+        agent.markConnected();
+        return agent;
     }
 
     /**
@@ -338,7 +336,7 @@
                                 administratorUids,
                                 binder);
 
-                mTestNetworkTracker.put(agent.getNetwork().netId, agent);
+                mTestNetworkTracker.put(agent.getNetwork().getNetId(), agent);
             }
         } catch (SocketException e) {
             throw new UncheckedIOException(e);
diff --git a/services/core/java/com/android/server/connectivity/DnsManager.java b/services/core/java/com/android/server/connectivity/DnsManager.java
index c789186..c70bb08 100644
--- a/services/core/java/com/android/server/connectivity/DnsManager.java
+++ b/services/core/java/com/android/server/connectivity/DnsManager.java
@@ -34,7 +34,6 @@
 import android.net.IDnsResolver;
 import android.net.LinkProperties;
 import android.net.Network;
-import android.net.NetworkUtils;
 import android.net.ResolverOptionsParcel;
 import android.net.ResolverParamsParcel;
 import android.net.Uri;
@@ -45,11 +44,12 @@
 import android.os.UserHandle;
 import android.provider.Settings;
 import android.text.TextUtils;
+import android.util.Log;
 import android.util.Pair;
-import android.util.Slog;
 
 import java.net.InetAddress;
 import java.util.Arrays;
+import java.util.Collection;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
@@ -59,7 +59,6 @@
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.stream.Collectors;
 
-
 /**
  * Encapsulate the management of DNS settings for networks.
  *
@@ -266,23 +265,23 @@
     }
 
     public void removeNetwork(Network network) {
-        mPrivateDnsMap.remove(network.netId);
-        mPrivateDnsValidationMap.remove(network.netId);
-        mTransportsMap.remove(network.netId);
-        mLinkPropertiesMap.remove(network.netId);
+        mPrivateDnsMap.remove(network.getNetId());
+        mPrivateDnsValidationMap.remove(network.getNetId());
+        mTransportsMap.remove(network.getNetId());
+        mLinkPropertiesMap.remove(network.getNetId());
     }
 
     // This is exclusively called by ConnectivityService#dumpNetworkDiagnostics() which
     // is not on the ConnectivityService handler thread.
     public PrivateDnsConfig getPrivateDnsConfig(@NonNull Network network) {
-        return mPrivateDnsMap.getOrDefault(network.netId, PRIVATE_DNS_OFF);
+        return mPrivateDnsMap.getOrDefault(network.getNetId(), PRIVATE_DNS_OFF);
     }
 
     public PrivateDnsConfig updatePrivateDns(Network network, PrivateDnsConfig cfg) {
-        Slog.w(TAG, "updatePrivateDns(" + network + ", " + cfg + ")");
+        Log.w(TAG, "updatePrivateDns(" + network + ", " + cfg + ")");
         return (cfg != null)
-                ? mPrivateDnsMap.put(network.netId, cfg)
-                : mPrivateDnsMap.remove(network.netId);
+                ? mPrivateDnsMap.put(network.getNetId(), cfg)
+                : mPrivateDnsMap.remove(network.getNetId());
     }
 
     public void updatePrivateDnsStatus(int netId, LinkProperties lp) {
@@ -309,8 +308,7 @@
     }
 
     public void updatePrivateDnsValidation(PrivateDnsValidationUpdate update) {
-        final PrivateDnsValidationStatuses statuses =
-                mPrivateDnsValidationMap.get(update.netId);
+        final PrivateDnsValidationStatuses statuses = mPrivateDnsValidationMap.get(update.netId);
         if (statuses == null) return;
         statuses.updateStatus(update);
     }
@@ -364,12 +362,11 @@
         paramsParcel.successThreshold = mSuccessThreshold;
         paramsParcel.minSamples = mMinSamples;
         paramsParcel.maxSamples = mMaxSamples;
-        paramsParcel.servers =
-                NetworkUtils.makeStrings(lp.getDnsServers());
+        paramsParcel.servers = makeStrings(lp.getDnsServers());
         paramsParcel.domains = getDomainStrings(lp.getDomains());
         paramsParcel.tlsName = strictMode ? privateDnsCfg.hostname : "";
         paramsParcel.tlsServers =
-                strictMode ? NetworkUtils.makeStrings(
+                strictMode ? makeStrings(
                         Arrays.stream(privateDnsCfg.ips)
                               .filter((ip) -> lp.isReachable(ip))
                               .collect(Collectors.toList()))
@@ -389,7 +386,7 @@
             mPrivateDnsValidationMap.remove(netId);
         }
 
-        Slog.d(TAG, String.format("sendDnsConfigurationForNetwork(%d, %s, %s, %d, %d, %d, %d, "
+        Log.d(TAG, String.format("sendDnsConfigurationForNetwork(%d, %s, %s, %d, %d, %d, %d, "
                 + "%d, %d, %s, %s)", paramsParcel.netId, Arrays.toString(paramsParcel.servers),
                 Arrays.toString(paramsParcel.domains), paramsParcel.sampleValiditySeconds,
                 paramsParcel.successThreshold, paramsParcel.minSamples,
@@ -400,7 +397,7 @@
         try {
             mDnsResolver.setResolverConfiguration(paramsParcel);
         } catch (RemoteException | ServiceSpecificException e) {
-            Slog.e(TAG, "Error setting DNS configuration: " + e);
+            Log.e(TAG, "Error setting DNS configuration: " + e);
             return;
         }
     }
@@ -431,8 +428,8 @@
                 DNS_RESOLVER_SAMPLE_VALIDITY_SECONDS,
                 DNS_RESOLVER_DEFAULT_SAMPLE_VALIDITY_SECONDS);
         if (mSampleValidity < 0 || mSampleValidity > 65535) {
-            Slog.w(TAG, "Invalid sampleValidity=" + mSampleValidity + ", using default=" +
-                    DNS_RESOLVER_DEFAULT_SAMPLE_VALIDITY_SECONDS);
+            Log.w(TAG, "Invalid sampleValidity=" + mSampleValidity + ", using default="
+                    + DNS_RESOLVER_DEFAULT_SAMPLE_VALIDITY_SECONDS);
             mSampleValidity = DNS_RESOLVER_DEFAULT_SAMPLE_VALIDITY_SECONDS;
         }
 
@@ -440,17 +437,17 @@
                 DNS_RESOLVER_SUCCESS_THRESHOLD_PERCENT,
                 DNS_RESOLVER_DEFAULT_SUCCESS_THRESHOLD_PERCENT);
         if (mSuccessThreshold < 0 || mSuccessThreshold > 100) {
-            Slog.w(TAG, "Invalid successThreshold=" + mSuccessThreshold + ", using default=" +
-                    DNS_RESOLVER_DEFAULT_SUCCESS_THRESHOLD_PERCENT);
+            Log.w(TAG, "Invalid successThreshold=" + mSuccessThreshold + ", using default="
+                    + DNS_RESOLVER_DEFAULT_SUCCESS_THRESHOLD_PERCENT);
             mSuccessThreshold = DNS_RESOLVER_DEFAULT_SUCCESS_THRESHOLD_PERCENT;
         }
 
         mMinSamples = getIntSetting(DNS_RESOLVER_MIN_SAMPLES, DNS_RESOLVER_DEFAULT_MIN_SAMPLES);
         mMaxSamples = getIntSetting(DNS_RESOLVER_MAX_SAMPLES, DNS_RESOLVER_DEFAULT_MAX_SAMPLES);
         if (mMinSamples < 0 || mMinSamples > mMaxSamples || mMaxSamples > 64) {
-            Slog.w(TAG, "Invalid sample count (min, max)=(" + mMinSamples + ", " + mMaxSamples +
-                    "), using default=(" + DNS_RESOLVER_DEFAULT_MIN_SAMPLES + ", " +
-                    DNS_RESOLVER_DEFAULT_MAX_SAMPLES + ")");
+            Log.w(TAG, "Invalid sample count (min, max)=(" + mMinSamples + ", " + mMaxSamples
+                    + "), using default=(" + DNS_RESOLVER_DEFAULT_MIN_SAMPLES + ", "
+                    + DNS_RESOLVER_DEFAULT_MAX_SAMPLES + ")");
             mMinSamples = DNS_RESOLVER_DEFAULT_MIN_SAMPLES;
             mMaxSamples = DNS_RESOLVER_DEFAULT_MAX_SAMPLES;
         }
@@ -460,6 +457,21 @@
         return Settings.Global.getInt(mContentResolver, which, dflt);
     }
 
+    /**
+     * Create a string array of host addresses from a collection of InetAddresses
+     *
+     * @param addrs a Collection of InetAddresses
+     * @return an array of Strings containing their host addresses
+     */
+    private String[] makeStrings(Collection<InetAddress> addrs) {
+        String[] result = new String[addrs.size()];
+        int i = 0;
+        for (InetAddress addr : addrs) {
+            result[i++] = addr.getHostAddress();
+        }
+        return result;
+    }
+
     private static String getPrivateDnsMode(ContentResolver cr) {
         String mode = getStringSetting(cr, PRIVATE_DNS_MODE);
         if (TextUtils.isEmpty(mode)) mode = getStringSetting(cr, PRIVATE_DNS_DEFAULT_MODE);
diff --git a/services/core/java/com/android/server/connectivity/KeepaliveTracker.java b/services/core/java/com/android/server/connectivity/KeepaliveTracker.java
index 8625a6f..96cbfde 100644
--- a/services/core/java/com/android/server/connectivity/KeepaliveTracker.java
+++ b/services/core/java/com/android/server/connectivity/KeepaliveTracker.java
@@ -40,11 +40,11 @@
 import android.annotation.Nullable;
 import android.content.Context;
 import android.net.ISocketKeepaliveCallback;
+import android.net.InetAddresses;
 import android.net.InvalidPacketException;
 import android.net.KeepalivePacketData;
 import android.net.NattKeepalivePacketData;
 import android.net.NetworkAgent;
-import android.net.NetworkUtils;
 import android.net.SocketKeepalive.InvalidSocketException;
 import android.net.TcpKeepalivePacketData;
 import android.net.util.KeepaliveUtils;
@@ -625,8 +625,8 @@
 
         InetAddress srcAddress, dstAddress;
         try {
-            srcAddress = NetworkUtils.numericToInetAddress(srcAddrString);
-            dstAddress = NetworkUtils.numericToInetAddress(dstAddrString);
+            srcAddress = InetAddresses.parseNumericAddress(srcAddrString);
+            dstAddress = InetAddresses.parseNumericAddress(dstAddrString);
         } catch (IllegalArgumentException e) {
             notifyErrorCallback(cb, ERROR_INVALID_IP_ADDRESS);
             return;
diff --git a/services/core/java/com/android/server/connectivity/LingerMonitor.java b/services/core/java/com/android/server/connectivity/LingerMonitor.java
index f99f4c6..adec7ad 100644
--- a/services/core/java/com/android/server/connectivity/LingerMonitor.java
+++ b/services/core/java/com/android/server/connectivity/LingerMonitor.java
@@ -114,7 +114,7 @@
 
     private int getNotificationSource(NetworkAgentInfo toNai) {
         for (int i = 0; i < mNotifications.size(); i++) {
-            if (mNotifications.valueAt(i) == toNai.network.netId) {
+            if (mNotifications.valueAt(i) == toNai.network.getNetId()) {
                 return mNotifications.keyAt(i);
             }
         }
@@ -122,7 +122,7 @@
     }
 
     private boolean everNotified(NetworkAgentInfo nai) {
-        return mEverNotified.get(nai.network.netId, false);
+        return mEverNotified.get(nai.network.getNetId(), false);
     }
 
     @VisibleForTesting
@@ -153,7 +153,7 @@
     }
 
     private void showNotification(NetworkAgentInfo fromNai, NetworkAgentInfo toNai) {
-        mNotifier.showNotification(fromNai.network.netId, NotificationType.NETWORK_SWITCH,
+        mNotifier.showNotification(fromNai.network.getNetId(), NotificationType.NETWORK_SWITCH,
                 fromNai, toNai, createNotificationIntent(), true);
     }
 
@@ -208,8 +208,8 @@
                     + " type=" + sNotifyTypeNames.get(notifyType, "unknown(" + notifyType + ")"));
         }
 
-        mNotifications.put(fromNai.network.netId, toNai.network.netId);
-        mEverNotified.put(fromNai.network.netId, true);
+        mNotifications.put(fromNai.network.getNetId(), toNai.network.getNetId());
+        mEverNotified.put(fromNai.network.getNetId(), true);
     }
 
     /**
@@ -295,8 +295,8 @@
     }
 
     public void noteDisconnect(NetworkAgentInfo nai) {
-        mNotifications.delete(nai.network.netId);
-        mEverNotified.delete(nai.network.netId);
+        mNotifications.delete(nai.network.getNetId());
+        mEverNotified.delete(nai.network.getNetId());
         maybeStopNotifying(nai);
         // No need to cancel notifications on nai: NetworkMonitor does that on disconnect.
     }
diff --git a/services/core/java/com/android/server/connectivity/Nat464Xlat.java b/services/core/java/com/android/server/connectivity/Nat464Xlat.java
index 163788f..c1b1b6a 100644
--- a/services/core/java/com/android/server/connectivity/Nat464Xlat.java
+++ b/services/core/java/com/android/server/connectivity/Nat464Xlat.java
@@ -30,7 +30,7 @@
 import android.os.INetworkManagementService;
 import android.os.RemoteException;
 import android.os.ServiceSpecificException;
-import android.util.Slog;
+import android.util.Log;
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.util.ArrayUtils;
@@ -176,7 +176,7 @@
         try {
             mNMService.registerObserver(this);
         } catch (RemoteException e) {
-            Slog.e(TAG, "Can't register iface observer for clat on " + mNetwork.toShortString());
+            Log.e(TAG, "Can't register iface observer for clat on " + mNetwork.toShortString());
             return;
         }
 
@@ -185,7 +185,7 @@
         try {
             addrStr = mNetd.clatdStart(baseIface, mNat64PrefixInUse.toString());
         } catch (RemoteException | ServiceSpecificException e) {
-            Slog.e(TAG, "Error starting clatd on " + baseIface + ": " + e);
+            Log.e(TAG, "Error starting clatd on " + baseIface + ": " + e);
         }
         mIface = CLAT_PREFIX + baseIface;
         mBaseIface = baseIface;
@@ -193,7 +193,7 @@
         try {
             mIPv6Address = (Inet6Address) InetAddresses.parseNumericAddress(addrStr);
         } catch (ClassCastException | IllegalArgumentException | NullPointerException e) {
-            Slog.e(TAG, "Invalid IPv6 address " + addrStr);
+            Log.e(TAG, "Invalid IPv6 address " + addrStr);
         }
         if (mPrefixDiscoveryRunning && !isPrefixDiscoveryNeeded()) {
             stopPrefixDiscovery();
@@ -218,7 +218,7 @@
         try {
             mNMService.unregisterObserver(this);
         } catch (RemoteException | IllegalStateException e) {
-            Slog.e(TAG, "Error unregistering clatd observer on " + mBaseIface + ": " + e);
+            Log.e(TAG, "Error unregistering clatd observer on " + mBaseIface + ": " + e);
         }
         mNat64PrefixInUse = null;
         mIface = null;
@@ -242,37 +242,37 @@
     @VisibleForTesting
     protected void start() {
         if (isStarted()) {
-            Slog.e(TAG, "startClat: already started");
+            Log.e(TAG, "startClat: already started");
             return;
         }
 
         if (mNetwork.linkProperties == null) {
-            Slog.e(TAG, "startClat: Can't start clat with null LinkProperties");
+            Log.e(TAG, "startClat: Can't start clat with null LinkProperties");
             return;
         }
 
         String baseIface = mNetwork.linkProperties.getInterfaceName();
         if (baseIface == null) {
-            Slog.e(TAG, "startClat: Can't start clat on null interface");
+            Log.e(TAG, "startClat: Can't start clat on null interface");
             return;
         }
         // TODO: should we only do this if mNetd.clatdStart() succeeds?
-        Slog.i(TAG, "Starting clatd on " + baseIface);
+        Log.i(TAG, "Starting clatd on " + baseIface);
         enterStartingState(baseIface);
     }
 
     @VisibleForTesting
     protected void stop() {
         if (!isStarted()) {
-            Slog.e(TAG, "stopClat: already stopped");
+            Log.e(TAG, "stopClat: already stopped");
             return;
         }
 
-        Slog.i(TAG, "Stopping clatd on " + mBaseIface);
+        Log.i(TAG, "Stopping clatd on " + mBaseIface);
         try {
             mNetd.clatdStop(mBaseIface);
         } catch (RemoteException | ServiceSpecificException e) {
-            Slog.e(TAG, "Error stopping clatd on " + mBaseIface + ": " + e);
+            Log.e(TAG, "Error stopping clatd on " + mBaseIface + ": " + e);
         }
 
         String iface = mIface;
@@ -294,7 +294,7 @@
         try {
             mDnsResolver.startPrefix64Discovery(getNetId());
         } catch (RemoteException | ServiceSpecificException e) {
-            Slog.e(TAG, "Error starting prefix discovery on netId " + getNetId() + ": " + e);
+            Log.e(TAG, "Error starting prefix discovery on netId " + getNetId() + ": " + e);
         }
         mPrefixDiscoveryRunning = true;
     }
@@ -303,7 +303,7 @@
         try {
             mDnsResolver.stopPrefix64Discovery(getNetId());
         } catch (RemoteException | ServiceSpecificException e) {
-            Slog.e(TAG, "Error stopping prefix discovery on netId " + getNetId() + ": " + e);
+            Log.e(TAG, "Error stopping prefix discovery on netId " + getNetId() + ": " + e);
         }
         mPrefixDiscoveryRunning = false;
     }
@@ -320,7 +320,7 @@
         try {
             mDnsResolver.setPrefix64(getNetId(), prefixString);
         } catch (RemoteException | ServiceSpecificException e) {
-            Slog.e(TAG, "Error setting NAT64 prefix on netId " + getNetId() + " to "
+            Log.e(TAG, "Error setting NAT64 prefix on netId " + getNetId() + " to "
                     + prefix + ": " + e);
         }
     }
@@ -328,7 +328,7 @@
     private void maybeHandleNat64PrefixChange() {
         final IpPrefix newPrefix = selectNat64Prefix();
         if (!Objects.equals(mNat64PrefixInUse, newPrefix)) {
-            Slog.d(TAG, "NAT64 prefix changed from " + mNat64PrefixInUse + " to "
+            Log.d(TAG, "NAT64 prefix changed from " + mNat64PrefixInUse + " to "
                     + newPrefix);
             stop();
             // It's safe to call update here, even though this method is called from update, because
@@ -418,7 +418,7 @@
             return;
         }
 
-        Slog.d(TAG, "clatd running, updating NAI for " + mIface);
+        Log.d(TAG, "clatd running, updating NAI for " + mIface);
         for (LinkProperties stacked: oldLp.getStackedLinks()) {
             if (Objects.equals(mIface, stacked.getInterfaceName())) {
                 lp.addStackedLink(stacked);
@@ -451,7 +451,7 @@
             return new LinkAddress(
                     InetAddresses.parseNumericAddress(config.ipv4Addr), config.prefixLength);
         } catch (IllegalArgumentException | RemoteException | ServiceSpecificException e) {
-            Slog.e(TAG, "Error getting link properties: " + e);
+            Log.e(TAG, "Error getting link properties: " + e);
             return null;
         }
     }
@@ -480,11 +480,11 @@
 
         LinkAddress clatAddress = getLinkAddress(iface);
         if (clatAddress == null) {
-            Slog.e(TAG, "clatAddress was null for stacked iface " + iface);
+            Log.e(TAG, "clatAddress was null for stacked iface " + iface);
             return;
         }
 
-        Slog.i(TAG, String.format("interface %s is up, adding stacked link %s on top of %s",
+        Log.i(TAG, String.format("interface %s is up, adding stacked link %s on top of %s",
                 mIface, mIface, mBaseIface));
         enterRunningState();
         LinkProperties lp = new LinkProperties(mNetwork.linkProperties);
@@ -503,7 +503,7 @@
             return;
         }
 
-        Slog.i(TAG, "interface " + iface + " removed");
+        Log.i(TAG, "interface " + iface + " removed");
         // If we're running, and the interface was removed, then we didn't call stop(), and it's
         // likely that clatd crashed. Ensure we call stop() so we can start clatd again. Calling
         // stop() will also update LinkProperties, and if clatd crashed, the LinkProperties update
@@ -528,6 +528,6 @@
 
     @VisibleForTesting
     protected int getNetId() {
-        return mNetwork.network.netId;
+        return mNetwork.network.getNetId();
     }
 }
diff --git a/services/core/java/com/android/server/connectivity/NetworkAgentInfo.java b/services/core/java/com/android/server/connectivity/NetworkAgentInfo.java
index 3270dd5..ccd1f3b 100644
--- a/services/core/java/com/android/server/connectivity/NetworkAgentInfo.java
+++ b/services/core/java/com/android/server/connectivity/NetworkAgentInfo.java
@@ -610,7 +610,7 @@
         if (newExpiry > 0) {
             mLingerMessage = new WakeupMessage(
                     mContext, mHandler,
-                    "NETWORK_LINGER_COMPLETE." + network.netId /* cmdName */,
+                    "NETWORK_LINGER_COMPLETE." + network.getNetId() /* cmdName */,
                     EVENT_NETWORK_LINGER_COMPLETE /* cmd */,
                     0 /* arg1 (unused) */, 0 /* arg2 (unused) */,
                     this /* obj (NetworkAgentInfo) */);
@@ -701,7 +701,7 @@
      * This represents the network with something like "[100 WIFI|VPN]" or "[108 MOBILE]".
      */
     public String toShortString() {
-        return "[" + network.netId + " "
+        return "[" + network.getNetId() + " "
                 + transportNamesOf(networkCapabilities.getTransportTypes()) + "]";
     }
 
diff --git a/services/core/java/com/android/server/connectivity/NetworkDiagnostics.java b/services/core/java/com/android/server/connectivity/NetworkDiagnostics.java
index 49c16ad..a7be657 100644
--- a/services/core/java/com/android/server/connectivity/NetworkDiagnostics.java
+++ b/services/core/java/com/android/server/connectivity/NetworkDiagnostics.java
@@ -20,10 +20,10 @@
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.net.InetAddresses;
 import android.net.LinkAddress;
 import android.net.LinkProperties;
 import android.net.Network;
-import android.net.NetworkUtils;
 import android.net.RouteInfo;
 import android.net.TrafficStats;
 import android.net.shared.PrivateDnsConfig;
@@ -97,8 +97,8 @@
 public class NetworkDiagnostics {
     private static final String TAG = "NetworkDiagnostics";
 
-    private static final InetAddress TEST_DNS4 = NetworkUtils.numericToInetAddress("8.8.8.8");
-    private static final InetAddress TEST_DNS6 = NetworkUtils.numericToInetAddress(
+    private static final InetAddress TEST_DNS4 = InetAddresses.parseNumericAddress("8.8.8.8");
+    private static final InetAddress TEST_DNS6 = InetAddresses.parseNumericAddress(
             "2001:4860:4860::8888");
 
     // For brevity elsewhere.
diff --git a/services/core/java/com/android/server/connectivity/NetworkNotificationManager.java b/services/core/java/com/android/server/connectivity/NetworkNotificationManager.java
index 7f4fb40..7795ed3 100644
--- a/services/core/java/com/android/server/connectivity/NetworkNotificationManager.java
+++ b/services/core/java/com/android/server/connectivity/NetworkNotificationManager.java
@@ -35,7 +35,7 @@
 import android.telephony.SubscriptionManager;
 import android.telephony.TelephonyManager;
 import android.text.TextUtils;
-import android.util.Slog;
+import android.util.Log;
 import android.util.SparseArray;
 import android.util.SparseIntArray;
 import android.widget.Toast;
@@ -175,7 +175,7 @@
         final int previousEventId = mNotificationTypeMap.get(id);
         final NotificationType previousNotifyType = NotificationType.getFromId(previousEventId);
         if (priority(previousNotifyType) > priority(notifyType)) {
-            Slog.d(TAG, String.format(
+            Log.d(TAG, String.format(
                     "ignoring notification %s for network %s with existing notification %s",
                     notifyType, id, previousNotifyType));
             return;
@@ -183,7 +183,7 @@
         clearNotification(id);
 
         if (DBG) {
-            Slog.d(TAG, String.format(
+            Log.d(TAG, String.format(
                     "showNotification tag=%s event=%s transport=%s name=%s highPriority=%s",
                     tag, nameOf(eventId), getTransportName(transportType), name, highPriority));
         }
@@ -253,7 +253,7 @@
             // are sent, but they are not implemented yet.
             return;
         } else {
-            Slog.wtf(TAG, "Unknown notification type " + notifyType + " on network transport "
+            Log.wtf(TAG, "Unknown notification type " + notifyType + " on network transport "
                     + getTransportName(transportType));
             return;
         }
@@ -294,7 +294,7 @@
         try {
             mNotificationManager.notify(tag, eventId, notification);
         } catch (NullPointerException npe) {
-            Slog.d(TAG, "setNotificationVisible: visible notificationManager error", npe);
+            Log.d(TAG, "setNotificationVisible: visible notificationManager error", npe);
         }
     }
 
@@ -317,13 +317,13 @@
         final String tag = tagFor(id);
         final int eventId = mNotificationTypeMap.get(id);
         if (DBG) {
-            Slog.d(TAG, String.format("clearing notification tag=%s event=%s", tag,
+            Log.d(TAG, String.format("clearing notification tag=%s event=%s", tag,
                    nameOf(eventId)));
         }
         try {
             mNotificationManager.cancel(tag, eventId);
         } catch (NullPointerException npe) {
-            Slog.d(TAG, String.format(
+            Log.d(TAG, String.format(
                     "failed to clear notification tag=%s event=%s", tag, nameOf(eventId)), npe);
         }
         mNotificationTypeMap.delete(id);
diff --git a/services/core/java/com/android/server/connectivity/PermissionMonitor.java b/services/core/java/com/android/server/connectivity/PermissionMonitor.java
index a75a80a..d507b5f 100644
--- a/services/core/java/com/android/server/connectivity/PermissionMonitor.java
+++ b/services/core/java/com/android/server/connectivity/PermissionMonitor.java
@@ -35,7 +35,6 @@
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.pm.PackageManagerInternal;
-import android.content.pm.UserInfo;
 import android.net.INetd;
 import android.net.UidRange;
 import android.os.Build;
@@ -174,11 +173,9 @@
             netdPermsUids.put(uid, netdPermsUids.get(uid) | otherNetdPerms);
         }
 
-        List<UserInfo> users = mUserManager.getUsers(true);  // exclude dying users
-        if (users != null) {
-            for (UserInfo user : users) {
-                mUsers.add(user.id);
-            }
+        final List<UserHandle> users = mUserManager.getUserHandles(true /* excludeDying */);
+        for (UserHandle user : users) {
+            mUsers.add(user.getIdentifier());
         }
 
         final SparseArray<ArraySet<String>> systemPermission =
diff --git a/services/core/java/com/android/server/connectivity/ProxyTracker.java b/services/core/java/com/android/server/connectivity/ProxyTracker.java
index 26cc3ee..5cb3d94 100644
--- a/services/core/java/com/android/server/connectivity/ProxyTracker.java
+++ b/services/core/java/com/android/server/connectivity/ProxyTracker.java
@@ -35,7 +35,7 @@
 import android.os.UserHandle;
 import android.provider.Settings;
 import android.text.TextUtils;
-import android.util.Slog;
+import android.util.Log;
 
 import com.android.internal.annotations.GuardedBy;
 
@@ -168,7 +168,7 @@
                 proxyProperties = new ProxyInfo(host, port, exclList);
             }
             if (!proxyProperties.isValid()) {
-                if (DBG) Slog.d(TAG, "Invalid proxy properties, ignoring: " + proxyProperties);
+                if (DBG) Log.d(TAG, "Invalid proxy properties, ignoring: " + proxyProperties);
                 return;
             }
 
@@ -223,7 +223,7 @@
         if (mPacManager.setCurrentProxyScriptUrl(proxyInfo) == PacManager.DONT_SEND_BROADCAST) {
             return;
         }
-        if (DBG) Slog.d(TAG, "sending Proxy Broadcast for " + proxyInfo);
+        if (DBG) Log.d(TAG, "sending Proxy Broadcast for " + proxyInfo);
         Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION);
         intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING |
                 Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
@@ -255,7 +255,7 @@
             if (proxyInfo != null && (!TextUtils.isEmpty(proxyInfo.getHost()) ||
                     !Uri.EMPTY.equals(proxyInfo.getPacFileUrl()))) {
                 if (!proxyInfo.isValid()) {
-                    if (DBG) Slog.d(TAG, "Invalid proxy properties, ignoring: " + proxyInfo);
+                    if (DBG) Log.d(TAG, "Invalid proxy properties, ignoring: " + proxyInfo);
                     return;
                 }
                 mGlobalProxy = new ProxyInfo(proxyInfo);
@@ -296,7 +296,7 @@
         synchronized (mProxyLock) {
             if (Objects.equals(mDefaultProxy, proxyInfo)) return;
             if (proxyInfo != null &&  !proxyInfo.isValid()) {
-                if (DBG) Slog.d(TAG, "Invalid proxy properties, ignoring: " + proxyInfo);
+                if (DBG) Log.d(TAG, "Invalid proxy properties, ignoring: " + proxyInfo);
                 return;
             }
 
diff --git a/tests/net/common/java/android/net/LinkAddressTest.java b/tests/net/common/java/android/net/LinkAddressTest.java
index 60308e3..1eaf30c 100644
--- a/tests/net/common/java/android/net/LinkAddressTest.java
+++ b/tests/net/common/java/android/net/LinkAddressTest.java
@@ -68,8 +68,8 @@
 
     private static final String V4 = "192.0.2.1";
     private static final String V6 = "2001:db8::1";
-    private static final InetAddress V4_ADDRESS = NetworkUtils.numericToInetAddress(V4);
-    private static final InetAddress V6_ADDRESS = NetworkUtils.numericToInetAddress(V6);
+    private static final InetAddress V4_ADDRESS = InetAddresses.parseNumericAddress(V4);
+    private static final InetAddress V6_ADDRESS = InetAddresses.parseNumericAddress(V6);
 
     @Test
     public void testConstants() {
@@ -131,10 +131,10 @@
             ipv6Loopback = new LinkAddress(addrs.get(0));
         }
 
-        assertEquals(NetworkUtils.numericToInetAddress("127.0.0.1"), ipv4Loopback.getAddress());
+        assertEquals(InetAddresses.parseNumericAddress("127.0.0.1"), ipv4Loopback.getAddress());
         assertEquals(8, ipv4Loopback.getPrefixLength());
 
-        assertEquals(NetworkUtils.numericToInetAddress("::1"), ipv6Loopback.getAddress());
+        assertEquals(InetAddresses.parseNumericAddress("::1"), ipv6Loopback.getAddress());
         assertEquals(128, ipv6Loopback.getPrefixLength());
 
         // Null addresses are rejected.
diff --git a/tests/net/common/java/android/net/NetworkProviderTest.kt b/tests/net/common/java/android/net/NetworkProviderTest.kt
index dd3f5be..77e9f12 100644
--- a/tests/net/common/java/android/net/NetworkProviderTest.kt
+++ b/tests/net/common/java/android/net/NetworkProviderTest.kt
@@ -33,6 +33,9 @@
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
+import org.mockito.Mockito.doReturn
+import org.mockito.Mockito.mock
+import org.mockito.Mockito.verifyNoMoreInteractions
 import java.util.UUID
 import kotlin.test.assertEquals
 import kotlin.test.assertNotEquals
@@ -87,8 +90,8 @@
         ) = seenEvents.poll(DEFAULT_TIMEOUT_MS) { it is T && predicate(it) }
     }
 
-    private fun createNetworkProvider(): TestNetworkProvider {
-        return TestNetworkProvider(context, mHandlerThread.looper)
+    private fun createNetworkProvider(ctx: Context = context): TestNetworkProvider {
+        return TestNetworkProvider(ctx, mHandlerThread.looper)
     }
 
     @Test
@@ -169,7 +172,12 @@
 
     @Test
     fun testDeclareNetworkRequestUnfulfillable() {
-        val provider = createNetworkProvider()
+        val mockContext = mock(Context::class.java)
+        val provider = createNetworkProvider(mockContext)
+        // ConnectivityManager not required at creation time
+        verifyNoMoreInteractions(mockContext)
+        doReturn(mCm).`when`(mockContext).getSystemService(Context.CONNECTIVITY_SERVICE)
+
         mCm.registerNetworkProvider(provider)
 
         val specifier = StringNetworkSpecifier(UUID.randomUUID().toString())
diff --git a/tests/net/integration/util/com/android/server/NetworkAgentWrapper.java b/tests/net/integration/util/com/android/server/NetworkAgentWrapper.java
index 2a24d1a..3d4dc4d 100644
--- a/tests/net/integration/util/com/android/server/NetworkAgentWrapper.java
+++ b/tests/net/integration/util/com/android/server/NetworkAgentWrapper.java
@@ -29,7 +29,7 @@
 import static junit.framework.Assert.assertTrue;
 
 import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.fail;
 
 import android.content.Context;
 import android.net.ConnectivityManager;
@@ -38,7 +38,6 @@
 import android.net.NetworkAgent;
 import android.net.NetworkAgentConfig;
 import android.net.NetworkCapabilities;
-import android.net.NetworkInfo;
 import android.net.NetworkProvider;
 import android.net.NetworkSpecifier;
 import android.net.SocketKeepalive;
@@ -53,9 +52,9 @@
 import com.android.testutils.TestableNetworkCallback;
 
 import java.util.Set;
+import java.util.concurrent.atomic.AtomicBoolean;
 
 public class NetworkAgentWrapper implements TestableNetworkCallback.HasNetwork {
-    private final NetworkInfo mNetworkInfo;
     private final NetworkCapabilities mNetworkCapabilities;
     private final HandlerThread mHandlerThread;
     private final Context mContext;
@@ -63,6 +62,7 @@
 
     private final ConditionVariable mDisconnected = new ConditionVariable();
     private final ConditionVariable mPreventReconnectReceived = new ConditionVariable();
+    private final AtomicBoolean mConnected = new AtomicBoolean(false);
     private int mScore;
     private NetworkAgent mNetworkAgent;
     private int mStartKeepaliveError = SocketKeepalive.ERROR_UNSUPPORTED;
@@ -76,7 +76,6 @@
             NetworkCapabilities ncTemplate, Context context) throws Exception {
         final int type = transportToLegacyType(transport);
         final String typeName = ConnectivityManager.getNetworkTypeName(type);
-        mNetworkInfo = new NetworkInfo(type, 0, typeName, "Mock");
         mNetworkCapabilities = (ncTemplate != null) ? ncTemplate : new NetworkCapabilities();
         mNetworkCapabilities.addCapability(NET_CAPABILITY_NOT_SUSPENDED);
         mNetworkCapabilities.addTransportType(transport);
@@ -108,22 +107,29 @@
         mHandlerThread = new HandlerThread(mLogTag);
         mHandlerThread.start();
 
-        mNetworkAgent = makeNetworkAgent(linkProperties);
+        mNetworkAgent = makeNetworkAgent(linkProperties, type, typeName);
     }
 
-    protected InstrumentedNetworkAgent makeNetworkAgent(LinkProperties linkProperties)
+    protected InstrumentedNetworkAgent makeNetworkAgent(LinkProperties linkProperties,
+            final int type, final String typeName)
             throws Exception {
-        return new InstrumentedNetworkAgent(this, linkProperties);
+        return new InstrumentedNetworkAgent(this, linkProperties, type, typeName);
     }
 
     public static class InstrumentedNetworkAgent extends NetworkAgent {
         private final NetworkAgentWrapper mWrapper;
+        private static final String PROVIDER_NAME = "InstrumentedNetworkAgentProvider";
 
-        public InstrumentedNetworkAgent(NetworkAgentWrapper wrapper, LinkProperties lp) {
-            super(wrapper.mHandlerThread.getLooper(), wrapper.mContext, wrapper.mLogTag,
-                    wrapper.mNetworkInfo, wrapper.mNetworkCapabilities, lp, wrapper.mScore,
-                    new NetworkAgentConfig(), NetworkProvider.ID_NONE);
+        public InstrumentedNetworkAgent(NetworkAgentWrapper wrapper, LinkProperties lp,
+                final int type, final String typeName) {
+            super(wrapper.mContext, wrapper.mHandlerThread.getLooper(), wrapper.mLogTag,
+                    wrapper.mNetworkCapabilities, lp, wrapper.mScore,
+                    new NetworkAgentConfig.Builder()
+                            .setLegacyType(type).setLegacyTypeName(typeName).build(),
+                    new NetworkProvider(wrapper.mContext, wrapper.mHandlerThread.getLooper(),
+                            PROVIDER_NAME));
             mWrapper = wrapper;
+            register();
         }
 
         @Override
@@ -212,10 +218,12 @@
     }
 
     public void connect() {
-        assertNotEquals("MockNetworkAgents can only be connected once",
-                mNetworkInfo.getDetailedState(), NetworkInfo.DetailedState.CONNECTED);
-        mNetworkInfo.setDetailedState(NetworkInfo.DetailedState.CONNECTED, null, null);
-        mNetworkAgent.sendNetworkInfo(mNetworkInfo);
+        if (!mConnected.compareAndSet(false /* expect */, true /* update */)) {
+            // compareAndSet returns false when the value couldn't be updated because it did not
+            // match the expected value.
+            fail("Test NetworkAgents can only be connected once");
+        }
+        mNetworkAgent.markConnected();
     }
 
     public void suspend() {
@@ -227,8 +235,7 @@
     }
 
     public void disconnect() {
-        mNetworkInfo.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, null, null);
-        mNetworkAgent.sendNetworkInfo(mNetworkInfo);
+        mNetworkAgent.unregister();
     }
 
     @Override
diff --git a/tests/net/java/android/net/TcpKeepalivePacketDataTest.java b/tests/net/java/android/net/TcpKeepalivePacketDataTest.java
index 835a83e..c5b25bd 100644
--- a/tests/net/java/android/net/TcpKeepalivePacketDataTest.java
+++ b/tests/net/java/android/net/TcpKeepalivePacketDataTest.java
@@ -147,5 +147,11 @@
         assertEquals(resultData.rcvWndScale, wndScale);
         assertEquals(resultData.tos, tos);
         assertEquals(resultData.ttl, ttl);
+
+        final String expected = ""
+                + "android.net.TcpKeepalivePacketDataParcelable{srcAddress: [10, 0, 0, 1],"
+                + " srcPort: 1234, dstAddress: [10, 0, 0, 5], dstPort: 4321, seq: 286331153,"
+                + " ack: 572662306, rcvWnd: 48000, rcvWndScale: 2, tos: 4, ttl: 64}";
+        assertEquals(expected, resultData.toString());
     }
 }
diff --git a/tests/net/java/com/android/server/ConnectivityServiceTest.java b/tests/net/java/com/android/server/ConnectivityServiceTest.java
index c917e66..9d308c5 100644
--- a/tests/net/java/com/android/server/ConnectivityServiceTest.java
+++ b/tests/net/java/com/android/server/ConnectivityServiceTest.java
@@ -18,6 +18,7 @@
 
 import static android.Manifest.permission.CHANGE_NETWORK_STATE;
 import static android.Manifest.permission.CONNECTIVITY_USE_RESTRICTED_NETWORKS;
+import static android.app.PendingIntent.FLAG_IMMUTABLE;
 import static android.content.Intent.ACTION_USER_ADDED;
 import static android.content.Intent.ACTION_USER_REMOVED;
 import static android.content.pm.PackageInfo.REQUESTED_PERMISSION_GRANTED;
@@ -56,8 +57,10 @@
 import static android.net.NetworkCapabilities.NET_CAPABILITY_IMS;
 import static android.net.NetworkCapabilities.NET_CAPABILITY_INTERNET;
 import static android.net.NetworkCapabilities.NET_CAPABILITY_MMS;
+import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_CONGESTED;
 import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_METERED;
 import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED;
+import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_ROAMING;
 import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_SUSPENDED;
 import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_VPN;
 import static android.net.NetworkCapabilities.NET_CAPABILITY_PARTIAL_CONNECTIVITY;
@@ -179,7 +182,6 @@
 import android.net.NetworkStackClient;
 import android.net.NetworkState;
 import android.net.NetworkTestResultParcelable;
-import android.net.NetworkUtils;
 import android.net.ProxyInfo;
 import android.net.ResolverParamsParcel;
 import android.net.RouteInfo;
@@ -644,8 +646,8 @@
         }
 
         @Override
-        protected InstrumentedNetworkAgent makeNetworkAgent(LinkProperties linkProperties)
-                throws Exception {
+        protected InstrumentedNetworkAgent makeNetworkAgent(LinkProperties linkProperties,
+                final int type, final String typeName) throws Exception {
             mNetworkMonitor = mock(INetworkMonitor.class);
 
             final Answer validateAnswer = inv -> {
@@ -664,7 +666,8 @@
                     any() /* name */,
                     nmCbCaptor.capture());
 
-            final InstrumentedNetworkAgent na = new InstrumentedNetworkAgent(this, linkProperties) {
+            final InstrumentedNetworkAgent na = new InstrumentedNetworkAgent(this, linkProperties,
+                    type, typeName) {
                 @Override
                 public void networkStatus(int status, String redirectUrl) {
                     mRedirectUrl = redirectUrl;
@@ -1233,7 +1236,7 @@
         MockitoAnnotations.initMocks(this);
         when(mMetricsService.defaultNetworkMetrics()).thenReturn(mDefaultNetworkMetrics);
 
-        when(mUserManager.getUsers(eq(true))).thenReturn(
+        when(mUserManager.getAliveUsers()).thenReturn(
                 Arrays.asList(new UserInfo[] {
                         new UserInfo(VPN_USER, "", 0),
                 }));
@@ -1956,6 +1959,37 @@
     }
 
     @Test
+    public void testOwnerUidCannotChange() throws Exception {
+        // Owner UIDs are not visible without location permission.
+        setupLocationPermissions(Build.VERSION_CODES.Q, true, AppOpsManager.OPSTR_FINE_LOCATION,
+                Manifest.permission.ACCESS_FINE_LOCATION);
+
+        final NetworkCapabilities ncTemplate = new NetworkCapabilities();
+        final int originalOwnerUid = Process.myUid();
+        ncTemplate.setOwnerUid(originalOwnerUid);
+
+        mWiFiNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI, new LinkProperties(),
+                ncTemplate);
+        mWiFiNetworkAgent.connect(false);
+        waitForIdle();
+
+        // Send ConnectivityService an update to the mWiFiNetworkAgent's capabilities that changes
+        // the owner UID and an unrelated capability.
+        NetworkCapabilities agentCapabilities = mWiFiNetworkAgent.getNetworkCapabilities();
+        assertEquals(originalOwnerUid, agentCapabilities.getOwnerUid());
+        agentCapabilities.setOwnerUid(42);
+        assertFalse(agentCapabilities.hasCapability(NET_CAPABILITY_NOT_CONGESTED));
+        agentCapabilities.addCapability(NET_CAPABILITY_NOT_CONGESTED);
+        mWiFiNetworkAgent.setNetworkCapabilities(agentCapabilities, true);
+        waitForIdle();
+
+        // Check that the capability change has been applied but the owner UID is not modified.
+        NetworkCapabilities nc = mCm.getNetworkCapabilities(mWiFiNetworkAgent.getNetwork());
+        assertEquals(originalOwnerUid, nc.getOwnerUid());
+        assertTrue(nc.hasCapability(NET_CAPABILITY_NOT_CONGESTED));
+    }
+
+    @Test
     public void testMultipleLingering() throws Exception {
         // This test would be flaky with the default 120ms timer: that is short enough that
         // lingered networks are torn down before assertions can be run. We don't want to mock the
@@ -2515,7 +2549,8 @@
 
     @Test
     public void testNoMutableNetworkRequests() throws Exception {
-        PendingIntent pendingIntent = PendingIntent.getBroadcast(mContext, 0, new Intent("a"), 0);
+        final PendingIntent pendingIntent = PendingIntent.getBroadcast(
+                mContext, 0 /* requestCode */, new Intent("a"), FLAG_IMMUTABLE);
         NetworkRequest request1 = new NetworkRequest.Builder()
                 .addCapability(NET_CAPABILITY_VALIDATED)
                 .build();
@@ -3177,7 +3212,7 @@
 
         assertThrows(SecurityException.class, () ->
                 mCm.registerNetworkCallback(r, PendingIntent.getService(
-                        mServiceContext, 0, new Intent(), 0)));
+                        mServiceContext, 0 /* requestCode */, new Intent(), FLAG_IMMUTABLE)));
 
         // Requesting a Network with signal strength should get IllegalArgumentException.
         assertThrows(IllegalArgumentException.class, () ->
@@ -3185,7 +3220,7 @@
 
         assertThrows(IllegalArgumentException.class, () ->
                 mCm.requestNetwork(r, PendingIntent.getService(
-                        mServiceContext, 0, new Intent(), 0)));
+                        mServiceContext, 0 /* requestCode */, new Intent(), FLAG_IMMUTABLE)));
     }
 
     @Test
@@ -4649,12 +4684,14 @@
         }
         j = 0;
         while (j++ < INTENTS / 2) {
-            PendingIntent pi = PendingIntent.getBroadcast(mContext, 0, new Intent("a" + j), 0);
+            final PendingIntent pi = PendingIntent.getBroadcast(mContext, 0 /* requestCode */,
+                    new Intent("a" + j), FLAG_IMMUTABLE);
             mCm.requestNetwork(networkRequest, pi);
             registered.add(pi);
         }
         while (j++ < INTENTS) {
-            PendingIntent pi = PendingIntent.getBroadcast(mContext, 0, new Intent("b" + j), 0);
+            final PendingIntent pi = PendingIntent.getBroadcast(mContext, 0 /* requestCode */,
+                    new Intent("b" + j), FLAG_IMMUTABLE);
             mCm.registerNetworkCallback(networkRequest, pi);
             registered.add(pi);
         }
@@ -4668,11 +4705,13 @@
         );
         assertThrows(TooManyRequestsException.class, () ->
                 mCm.requestNetwork(networkRequest,
-                        PendingIntent.getBroadcast(mContext, 0, new Intent("c"), 0))
+                        PendingIntent.getBroadcast(mContext, 0 /* requestCode */,
+                                new Intent("c"), FLAG_IMMUTABLE))
         );
         assertThrows(TooManyRequestsException.class, () ->
                 mCm.registerNetworkCallback(networkRequest,
-                        PendingIntent.getBroadcast(mContext, 0, new Intent("d"), 0))
+                        PendingIntent.getBroadcast(mContext, 0 /* requestCode */,
+                                new Intent("d"), FLAG_IMMUTABLE))
         );
 
         for (Object o : registered) {
@@ -4701,16 +4740,16 @@
         waitForIdle();
 
         for (int i = 0; i < MAX_REQUESTS; i++) {
-            PendingIntent pendingIntent =
-                    PendingIntent.getBroadcast(mContext, 0, new Intent("e" + i), 0);
+            final PendingIntent pendingIntent = PendingIntent.getBroadcast(
+                    mContext, 0 /* requestCode */, new Intent("e" + i), FLAG_IMMUTABLE);
             mCm.requestNetwork(networkRequest, pendingIntent);
             mCm.unregisterNetworkCallback(pendingIntent);
         }
         waitForIdle();
 
         for (int i = 0; i < MAX_REQUESTS; i++) {
-            PendingIntent pendingIntent =
-                    PendingIntent.getBroadcast(mContext, 0, new Intent("f" + i), 0);
+            final PendingIntent pendingIntent = PendingIntent.getBroadcast(
+                    mContext, 0 /* requestCode */, new Intent("f" + i), FLAG_IMMUTABLE);
             mCm.registerNetworkCallback(networkRequest, pendingIntent);
             mCm.unregisterNetworkCallback(pendingIntent);
         }
@@ -4788,7 +4827,7 @@
         lp.setInterfaceName(WIFI_IFNAME);
         LinkAddress myIpv4Address = new LinkAddress("192.168.12.3/24");
         RouteInfo myIpv4DefaultRoute = new RouteInfo((IpPrefix) null,
-                NetworkUtils.numericToInetAddress("192.168.12.1"), lp.getInterfaceName());
+                InetAddresses.parseNumericAddress("192.168.12.1"), lp.getInterfaceName());
         lp.addLinkAddress(myIpv4Address);
         lp.addRoute(myIpv4DefaultRoute);
 
@@ -5398,6 +5437,106 @@
     }
 
     @Test
+    public void testApplyUnderlyingCapabilities() throws Exception {
+        mCellNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_CELLULAR);
+        mWiFiNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI);
+        mCellNetworkAgent.connect(false /* validated */);
+        mWiFiNetworkAgent.connect(false /* validated */);
+
+        final NetworkCapabilities cellNc = new NetworkCapabilities()
+                .addTransportType(TRANSPORT_CELLULAR)
+                .addCapability(NET_CAPABILITY_INTERNET)
+                .addCapability(NET_CAPABILITY_NOT_CONGESTED)
+                .setLinkDownstreamBandwidthKbps(10);
+        final NetworkCapabilities wifiNc = new NetworkCapabilities()
+                .addTransportType(TRANSPORT_WIFI)
+                .addCapability(NET_CAPABILITY_INTERNET)
+                .addCapability(NET_CAPABILITY_NOT_METERED)
+                .addCapability(NET_CAPABILITY_NOT_ROAMING)
+                .addCapability(NET_CAPABILITY_NOT_CONGESTED)
+                .addCapability(NET_CAPABILITY_NOT_SUSPENDED)
+                .setLinkUpstreamBandwidthKbps(20);
+        mCellNetworkAgent.setNetworkCapabilities(cellNc, true /* sendToConnectivityService */);
+        mWiFiNetworkAgent.setNetworkCapabilities(wifiNc, true /* sendToConnectivityService */);
+        waitForIdle();
+
+        final Network mobile = mCellNetworkAgent.getNetwork();
+        final Network wifi = mWiFiNetworkAgent.getNetwork();
+
+        final NetworkCapabilities initialCaps = new NetworkCapabilities();
+        initialCaps.addCapability(NET_CAPABILITY_INTERNET);
+        initialCaps.removeCapability(NET_CAPABILITY_NOT_VPN);
+
+        final NetworkCapabilities withNoUnderlying = new NetworkCapabilities();
+        withNoUnderlying.addCapability(NET_CAPABILITY_INTERNET);
+        withNoUnderlying.addCapability(NET_CAPABILITY_NOT_CONGESTED);
+        withNoUnderlying.addCapability(NET_CAPABILITY_NOT_ROAMING);
+        withNoUnderlying.addCapability(NET_CAPABILITY_NOT_SUSPENDED);
+        withNoUnderlying.addTransportType(TRANSPORT_VPN);
+        withNoUnderlying.removeCapability(NET_CAPABILITY_NOT_VPN);
+
+        final NetworkCapabilities withMobileUnderlying = new NetworkCapabilities(withNoUnderlying);
+        withMobileUnderlying.addTransportType(TRANSPORT_CELLULAR);
+        withMobileUnderlying.removeCapability(NET_CAPABILITY_NOT_ROAMING);
+        withMobileUnderlying.removeCapability(NET_CAPABILITY_NOT_SUSPENDED);
+        withMobileUnderlying.setLinkDownstreamBandwidthKbps(10);
+
+        final NetworkCapabilities withWifiUnderlying = new NetworkCapabilities(withNoUnderlying);
+        withWifiUnderlying.addTransportType(TRANSPORT_WIFI);
+        withWifiUnderlying.addCapability(NET_CAPABILITY_NOT_METERED);
+        withWifiUnderlying.setLinkUpstreamBandwidthKbps(20);
+
+        final NetworkCapabilities withWifiAndMobileUnderlying =
+                new NetworkCapabilities(withNoUnderlying);
+        withWifiAndMobileUnderlying.addTransportType(TRANSPORT_CELLULAR);
+        withWifiAndMobileUnderlying.addTransportType(TRANSPORT_WIFI);
+        withWifiAndMobileUnderlying.removeCapability(NET_CAPABILITY_NOT_METERED);
+        withWifiAndMobileUnderlying.removeCapability(NET_CAPABILITY_NOT_ROAMING);
+        withWifiAndMobileUnderlying.setLinkDownstreamBandwidthKbps(10);
+        withWifiAndMobileUnderlying.setLinkUpstreamBandwidthKbps(20);
+
+        NetworkCapabilities caps = new NetworkCapabilities(initialCaps);
+        final boolean notDeclaredMetered = false;
+        mService.applyUnderlyingCapabilities(new Network[]{}, caps, notDeclaredMetered);
+        assertEquals(withNoUnderlying, caps);
+
+        caps = new NetworkCapabilities(initialCaps);
+        mService.applyUnderlyingCapabilities(new Network[]{null}, caps, notDeclaredMetered);
+        assertEquals(withNoUnderlying, caps);
+
+        caps = new NetworkCapabilities(initialCaps);
+        mService.applyUnderlyingCapabilities(new Network[]{mobile}, caps, notDeclaredMetered);
+        assertEquals(withMobileUnderlying, caps);
+
+        mService.applyUnderlyingCapabilities(new Network[]{wifi}, caps, notDeclaredMetered);
+        assertEquals(withWifiUnderlying, caps);
+
+        final boolean isDeclaredMetered = true;
+        withWifiUnderlying.removeCapability(NET_CAPABILITY_NOT_METERED);
+        caps = new NetworkCapabilities(initialCaps);
+        mService.applyUnderlyingCapabilities(new Network[]{wifi}, caps, isDeclaredMetered);
+        assertEquals(withWifiUnderlying, caps);
+
+        caps = new NetworkCapabilities(initialCaps);
+        mService.applyUnderlyingCapabilities(new Network[]{mobile, wifi}, caps, isDeclaredMetered);
+        assertEquals(withWifiAndMobileUnderlying, caps);
+
+        withWifiUnderlying.addCapability(NET_CAPABILITY_NOT_METERED);
+        caps = new NetworkCapabilities(initialCaps);
+        mService.applyUnderlyingCapabilities(new Network[]{null, mobile, null, wifi},
+                caps, notDeclaredMetered);
+        assertEquals(withWifiAndMobileUnderlying, caps);
+
+        caps = new NetworkCapabilities(initialCaps);
+        mService.applyUnderlyingCapabilities(new Network[]{null, mobile, null, wifi},
+                caps, notDeclaredMetered);
+        assertEquals(withWifiAndMobileUnderlying, caps);
+
+        mService.applyUnderlyingCapabilities(null, caps, notDeclaredMetered);
+        assertEquals(withWifiUnderlying, caps);
+    }
+
+    @Test
     public void testVpnConnectDisconnectUnderlyingNetwork() throws Exception {
         final TestNetworkCallback callback = new TestNetworkCallback();
         final NetworkRequest request = new NetworkRequest.Builder()
@@ -5947,17 +6086,28 @@
                 && caps.hasTransport(TRANSPORT_VPN)
                 && caps.hasTransport(TRANSPORT_WIFI));
 
+        // Change the VPN's capabilities somehow (specifically, disconnect wifi).
+        mWiFiNetworkAgent.disconnect();
+        callback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
+        callback.expectCapabilitiesThat(mMockVpn, (caps)
+                -> caps.getUids().size() == 2
+                && caps.getUids().contains(new UidRange(uid, uid))
+                && caps.getUids().contains(UidRange.createForUser(restrictedUserId))
+                && caps.hasTransport(TRANSPORT_VPN)
+                && !caps.hasTransport(TRANSPORT_WIFI));
+
         // Send a USER_REMOVED broadcast and expect to lose the UID range for the restricted user.
         final Intent removedIntent = new Intent(ACTION_USER_REMOVED);
         removedIntent.putExtra(Intent.EXTRA_USER_HANDLE, restrictedUserId);
         handler.post(() -> mServiceContext.sendBroadcast(removedIntent));
 
-        // Expect that the VPN gains the UID range for the restricted user.
+        // Expect that the VPN gains the UID range for the restricted user, and that the capability
+        // change made just before that (i.e., loss of TRANSPORT_WIFI) is preserved.
         callback.expectCapabilitiesThat(mMockVpn, (caps)
                 -> caps.getUids().size() == 1
                 && caps.getUids().contains(new UidRange(uid, uid))
                 && caps.hasTransport(TRANSPORT_VPN)
-                && caps.hasTransport(TRANSPORT_WIFI));
+                && !caps.hasTransport(TRANSPORT_WIFI));
     }
 
     @Test
diff --git a/tests/net/java/com/android/server/IpSecServiceParameterizedTest.java b/tests/net/java/com/android/server/IpSecServiceParameterizedTest.java
index 529d03c..799bcc8 100644
--- a/tests/net/java/com/android/server/IpSecServiceParameterizedTest.java
+++ b/tests/net/java/com/android/server/IpSecServiceParameterizedTest.java
@@ -34,6 +34,7 @@
 import android.content.Context;
 import android.content.pm.PackageManager;
 import android.net.INetd;
+import android.net.InetAddresses;
 import android.net.IpSecAlgorithm;
 import android.net.IpSecConfig;
 import android.net.IpSecManager;
@@ -44,7 +45,6 @@
 import android.net.IpSecUdpEncapResponse;
 import android.net.LinkAddress;
 import android.net.Network;
-import android.net.NetworkUtils;
 import android.os.Binder;
 import android.os.INetworkManagementService;
 import android.os.ParcelFileDescriptor;
@@ -272,7 +272,7 @@
 
         IpSecSpiResponse spi =
                 mIpSecService.allocateSecurityParameterIndex(
-                        NetworkUtils.numericToInetAddress(remoteAddress).getHostAddress(),
+                        InetAddresses.parseNumericAddress(remoteAddress).getHostAddress(),
                         IpSecManager.INVALID_SECURITY_PARAMETER_INDEX,
                         new Binder());
         return spi.resourceId;
diff --git a/tests/net/java/com/android/server/NetworkManagementServiceTest.java b/tests/net/java/com/android/server/NetworkManagementServiceTest.java
index 968b307..ea763d2 100644
--- a/tests/net/java/com/android/server/NetworkManagementServiceTest.java
+++ b/tests/net/java/com/android/server/NetworkManagementServiceTest.java
@@ -16,6 +16,12 @@
 
 package com.android.server;
 
+import static android.util.DebugUtils.valueToString;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.ArgumentMatchers.anyBoolean;
 import static org.mockito.Mockito.doNothing;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
@@ -29,15 +35,19 @@
 import android.net.INetd;
 import android.net.INetdUnsolicitedEventListener;
 import android.net.LinkAddress;
+import android.net.NetworkPolicyManager;
 import android.os.BatteryStats;
 import android.os.Binder;
 import android.os.IBinder;
+import android.os.Process;
+import android.os.RemoteException;
 import android.test.suitebuilder.annotation.SmallTest;
+import android.util.ArrayMap;
 
 import androidx.test.runner.AndroidJUnit4;
 
 import com.android.internal.app.IBatteryStats;
-import com.android.server.NetworkManagementService.SystemServices;
+import com.android.server.NetworkManagementService.Dependencies;
 import com.android.server.net.BaseNetworkObserver;
 
 import org.junit.After;
@@ -49,13 +59,14 @@
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 
+import java.util.function.BiFunction;
+
 /**
  * Tests for {@link NetworkManagementService}.
  */
 @RunWith(AndroidJUnit4.class)
 @SmallTest
 public class NetworkManagementServiceTest {
-
     private NetworkManagementService mNMService;
 
     @Mock private Context mContext;
@@ -66,7 +77,9 @@
     @Captor
     private ArgumentCaptor<INetdUnsolicitedEventListener> mUnsolListenerCaptor;
 
-    private final SystemServices mServices = new SystemServices() {
+    private final MockDependencies mDeps = new MockDependencies();
+
+    private final class MockDependencies extends Dependencies {
         @Override
         public IBinder getService(String name) {
             switch (name) {
@@ -76,14 +89,21 @@
                     throw new UnsupportedOperationException("Unknown service " + name);
             }
         }
+
         @Override
         public void registerLocalService(NetworkManagementInternal nmi) {
         }
+
         @Override
         public INetd getNetd() {
             return mNetdService;
         }
-    };
+
+        @Override
+        public int getCallingUid() {
+            return Process.SYSTEM_UID;
+        }
+    }
 
     @Before
     public void setUp() throws Exception {
@@ -91,7 +111,7 @@
         doNothing().when(mNetdService)
                 .registerUnsolicitedEventListener(mUnsolListenerCaptor.capture());
         // Start the service and wait until it connects to our socket.
-        mNMService = NetworkManagementService.create(mContext, mServices);
+        mNMService = NetworkManagementService.create(mContext, mDeps);
     }
 
     @After
@@ -192,4 +212,105 @@
         // Make sure nothing else was called.
         verifyNoMoreInteractions(observer);
     }
+
+    @Test
+    public void testFirewallEnabled() {
+        mNMService.setFirewallEnabled(true);
+        assertTrue(mNMService.isFirewallEnabled());
+
+        mNMService.setFirewallEnabled(false);
+        assertFalse(mNMService.isFirewallEnabled());
+    }
+
+    private static final int TEST_UID = 111;
+
+    @Test
+    public void testNetworkRestrictedDefault() {
+        assertFalse(mNMService.isNetworkRestricted(TEST_UID));
+    }
+
+    @Test
+    public void testMeteredNetworkRestrictions() throws RemoteException {
+        // Make sure the mocked netd method returns true.
+        doReturn(true).when(mNetdService).bandwidthEnableDataSaver(anyBoolean());
+
+        // Restrict usage of mobile data in background
+        mNMService.setUidMeteredNetworkDenylist(TEST_UID, true);
+        assertTrue("Should be true since mobile data usage is restricted",
+                mNMService.isNetworkRestricted(TEST_UID));
+
+        mNMService.setDataSaverModeEnabled(true);
+        verify(mNetdService).bandwidthEnableDataSaver(true);
+
+        mNMService.setUidMeteredNetworkDenylist(TEST_UID, false);
+        assertTrue("Should be true since data saver is on and the uid is not allowlisted",
+                mNMService.isNetworkRestricted(TEST_UID));
+
+        mNMService.setUidMeteredNetworkAllowlist(TEST_UID, true);
+        assertFalse("Should be false since data saver is on and the uid is allowlisted",
+                mNMService.isNetworkRestricted(TEST_UID));
+
+        // remove uid from allowlist and turn datasaver off again
+        mNMService.setUidMeteredNetworkAllowlist(TEST_UID, false);
+        mNMService.setDataSaverModeEnabled(false);
+        verify(mNetdService).bandwidthEnableDataSaver(false);
+        assertFalse("Network should not be restricted when data saver is off",
+                mNMService.isNetworkRestricted(TEST_UID));
+    }
+
+    @Test
+    public void testFirewallChains() {
+        final ArrayMap<Integer, ArrayMap<Integer, Boolean>> expected = new ArrayMap<>();
+        // Dozable chain
+        final ArrayMap<Integer, Boolean> isRestrictedForDozable = new ArrayMap<>();
+        isRestrictedForDozable.put(NetworkPolicyManager.FIREWALL_RULE_DEFAULT, true);
+        isRestrictedForDozable.put(INetd.FIREWALL_RULE_ALLOW, false);
+        isRestrictedForDozable.put(INetd.FIREWALL_RULE_DENY, true);
+        expected.put(INetd.FIREWALL_CHAIN_DOZABLE, isRestrictedForDozable);
+        // Powersaver chain
+        final ArrayMap<Integer, Boolean> isRestrictedForPowerSave = new ArrayMap<>();
+        isRestrictedForPowerSave.put(NetworkPolicyManager.FIREWALL_RULE_DEFAULT, true);
+        isRestrictedForPowerSave.put(INetd.FIREWALL_RULE_ALLOW, false);
+        isRestrictedForPowerSave.put(INetd.FIREWALL_RULE_DENY, true);
+        expected.put(INetd.FIREWALL_CHAIN_POWERSAVE, isRestrictedForPowerSave);
+        // Standby chain
+        final ArrayMap<Integer, Boolean> isRestrictedForStandby = new ArrayMap<>();
+        isRestrictedForStandby.put(NetworkPolicyManager.FIREWALL_RULE_DEFAULT, false);
+        isRestrictedForStandby.put(INetd.FIREWALL_RULE_ALLOW, false);
+        isRestrictedForStandby.put(INetd.FIREWALL_RULE_DENY, true);
+        expected.put(INetd.FIREWALL_CHAIN_STANDBY, isRestrictedForStandby);
+        // Restricted mode chain
+        final ArrayMap<Integer, Boolean> isRestrictedForRestrictedMode = new ArrayMap<>();
+        isRestrictedForRestrictedMode.put(NetworkPolicyManager.FIREWALL_RULE_DEFAULT, true);
+        isRestrictedForRestrictedMode.put(INetd.FIREWALL_RULE_ALLOW, false);
+        isRestrictedForRestrictedMode.put(INetd.FIREWALL_RULE_DENY, true);
+        expected.put(INetd.FIREWALL_CHAIN_RESTRICTED, isRestrictedForRestrictedMode);
+
+        final int[] chains = {
+                INetd.FIREWALL_CHAIN_STANDBY,
+                INetd.FIREWALL_CHAIN_POWERSAVE,
+                INetd.FIREWALL_CHAIN_DOZABLE,
+                INetd.FIREWALL_CHAIN_RESTRICTED
+        };
+        final int[] states = {
+                INetd.FIREWALL_RULE_ALLOW,
+                INetd.FIREWALL_RULE_DENY,
+                NetworkPolicyManager.FIREWALL_RULE_DEFAULT
+        };
+        BiFunction<Integer, Integer, String> errorMsg = (chain, state) -> {
+            return String.format("Unexpected value for chain: %s and state: %s",
+                    valueToString(INetd.class, "FIREWALL_CHAIN_", chain),
+                    valueToString(INetd.class, "FIREWALL_RULE_", state));
+        };
+        for (int chain : chains) {
+            final ArrayMap<Integer, Boolean> expectedValues = expected.get(chain);
+            mNMService.setFirewallChainEnabled(chain, true);
+            for (int state : states) {
+                mNMService.setFirewallUidRule(chain, TEST_UID, state);
+                assertEquals(errorMsg.apply(chain, state),
+                        expectedValues.get(state), mNMService.isNetworkRestricted(TEST_UID));
+            }
+            mNMService.setFirewallChainEnabled(chain, false);
+        }
+    }
 }
diff --git a/tests/net/java/com/android/server/connectivity/MultipathPolicyTrackerTest.java b/tests/net/java/com/android/server/connectivity/MultipathPolicyTrackerTest.java
index c53462c..950d716 100644
--- a/tests/net/java/com/android/server/connectivity/MultipathPolicyTrackerTest.java
+++ b/tests/net/java/com/android/server/connectivity/MultipathPolicyTrackerTest.java
@@ -130,6 +130,7 @@
 
         when(mContext.getResources()).thenReturn(mResources);
         when(mContext.getApplicationInfo()).thenReturn(new ApplicationInfo());
+        // Mock user id to all users that Context#registerReceiver will register with all users too.
         doReturn(UserHandle.ALL.getIdentifier()).when(mUserAllContext).getUserId();
         when(mContext.createContextAsUser(eq(UserHandle.ALL), anyInt()))
                 .thenReturn(mUserAllContext);
diff --git a/tests/net/java/com/android/server/connectivity/PermissionMonitorTest.java b/tests/net/java/com/android/server/connectivity/PermissionMonitorTest.java
index 5a29c2c..3556c72 100644
--- a/tests/net/java/com/android/server/connectivity/PermissionMonitorTest.java
+++ b/tests/net/java/com/android/server/connectivity/PermissionMonitorTest.java
@@ -58,7 +58,6 @@
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManagerInternal;
-import android.content.pm.UserInfo;
 import android.net.INetd;
 import android.net.UidRange;
 import android.os.Build;
@@ -123,10 +122,10 @@
         MockitoAnnotations.initMocks(this);
         when(mContext.getPackageManager()).thenReturn(mPackageManager);
         when(mContext.getSystemService(eq(Context.USER_SERVICE))).thenReturn(mUserManager);
-        when(mUserManager.getUsers(eq(true))).thenReturn(
-                Arrays.asList(new UserInfo[] {
-                        new UserInfo(MOCK_USER1, "", 0),
-                        new UserInfo(MOCK_USER2, "", 0),
+        when(mUserManager.getUserHandles(eq(true))).thenReturn(
+                Arrays.asList(new UserHandle[] {
+                        new UserHandle(MOCK_USER1),
+                        new UserHandle(MOCK_USER2),
                 }));
 
         mPermissionMonitor = spy(new PermissionMonitor(mContext, mNetdService, mDeps));
diff --git a/tests/net/java/com/android/server/connectivity/VpnTest.java b/tests/net/java/com/android/server/connectivity/VpnTest.java
index e1e0efa..337507a 100644
--- a/tests/net/java/com/android/server/connectivity/VpnTest.java
+++ b/tests/net/java/com/android/server/connectivity/VpnTest.java
@@ -21,15 +21,6 @@
 import static android.content.pm.UserInfo.FLAG_PRIMARY;
 import static android.content.pm.UserInfo.FLAG_RESTRICTED;
 import static android.net.ConnectivityManager.NetworkCallback;
-import static android.net.NetworkCapabilities.LINK_BANDWIDTH_UNSPECIFIED;
-import static android.net.NetworkCapabilities.NET_CAPABILITY_INTERNET;
-import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_CONGESTED;
-import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_METERED;
-import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_ROAMING;
-import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_SUSPENDED;
-import static android.net.NetworkCapabilities.TRANSPORT_CELLULAR;
-import static android.net.NetworkCapabilities.TRANSPORT_VPN;
-import static android.net.NetworkCapabilities.TRANSPORT_WIFI;
 
 import static org.junit.Assert.assertArrayEquals;
 import static org.junit.Assert.assertEquals;
@@ -621,102 +612,6 @@
         order.verify(mNotificationManager).cancel(anyString(), anyInt());
     }
 
-    @Test
-    public void testCapabilities() {
-        setMockedUsers(primaryUser);
-
-        final Network mobile = new Network(1);
-        final Network wifi = new Network(2);
-
-        final Map<Network, NetworkCapabilities> networks = new HashMap<>();
-        networks.put(
-                mobile,
-                new NetworkCapabilities()
-                        .addTransportType(TRANSPORT_CELLULAR)
-                        .addCapability(NET_CAPABILITY_INTERNET)
-                        .addCapability(NET_CAPABILITY_NOT_CONGESTED)
-                        .setLinkDownstreamBandwidthKbps(10));
-        networks.put(
-                wifi,
-                new NetworkCapabilities()
-                        .addTransportType(TRANSPORT_WIFI)
-                        .addCapability(NET_CAPABILITY_INTERNET)
-                        .addCapability(NET_CAPABILITY_NOT_METERED)
-                        .addCapability(NET_CAPABILITY_NOT_ROAMING)
-                        .addCapability(NET_CAPABILITY_NOT_CONGESTED)
-                        .addCapability(NET_CAPABILITY_NOT_SUSPENDED)
-                        .setLinkUpstreamBandwidthKbps(20));
-        setMockedNetworks(networks);
-
-        final NetworkCapabilities caps = new NetworkCapabilities();
-
-        Vpn.applyUnderlyingCapabilities(
-                mConnectivityManager, new Network[] {}, caps, false /* isAlwaysMetered */);
-        assertTrue(caps.hasTransport(TRANSPORT_VPN));
-        assertFalse(caps.hasTransport(TRANSPORT_CELLULAR));
-        assertFalse(caps.hasTransport(TRANSPORT_WIFI));
-        assertEquals(LINK_BANDWIDTH_UNSPECIFIED, caps.getLinkDownstreamBandwidthKbps());
-        assertEquals(LINK_BANDWIDTH_UNSPECIFIED, caps.getLinkUpstreamBandwidthKbps());
-        assertFalse(caps.hasCapability(NET_CAPABILITY_NOT_METERED));
-        assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_ROAMING));
-        assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_CONGESTED));
-        assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
-
-        Vpn.applyUnderlyingCapabilities(
-                mConnectivityManager,
-                new Network[] {mobile},
-                caps,
-                false /* isAlwaysMetered */);
-        assertTrue(caps.hasTransport(TRANSPORT_VPN));
-        assertTrue(caps.hasTransport(TRANSPORT_CELLULAR));
-        assertFalse(caps.hasTransport(TRANSPORT_WIFI));
-        assertEquals(10, caps.getLinkDownstreamBandwidthKbps());
-        assertEquals(LINK_BANDWIDTH_UNSPECIFIED, caps.getLinkUpstreamBandwidthKbps());
-        assertFalse(caps.hasCapability(NET_CAPABILITY_NOT_METERED));
-        assertFalse(caps.hasCapability(NET_CAPABILITY_NOT_ROAMING));
-        assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_CONGESTED));
-        assertFalse(caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
-
-        Vpn.applyUnderlyingCapabilities(
-                mConnectivityManager, new Network[] {wifi}, caps, false /* isAlwaysMetered */);
-        assertTrue(caps.hasTransport(TRANSPORT_VPN));
-        assertFalse(caps.hasTransport(TRANSPORT_CELLULAR));
-        assertTrue(caps.hasTransport(TRANSPORT_WIFI));
-        assertEquals(LINK_BANDWIDTH_UNSPECIFIED, caps.getLinkDownstreamBandwidthKbps());
-        assertEquals(20, caps.getLinkUpstreamBandwidthKbps());
-        assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_METERED));
-        assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_ROAMING));
-        assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_CONGESTED));
-        assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
-
-        Vpn.applyUnderlyingCapabilities(
-                mConnectivityManager, new Network[] {wifi}, caps, true /* isAlwaysMetered */);
-        assertTrue(caps.hasTransport(TRANSPORT_VPN));
-        assertFalse(caps.hasTransport(TRANSPORT_CELLULAR));
-        assertTrue(caps.hasTransport(TRANSPORT_WIFI));
-        assertEquals(LINK_BANDWIDTH_UNSPECIFIED, caps.getLinkDownstreamBandwidthKbps());
-        assertEquals(20, caps.getLinkUpstreamBandwidthKbps());
-        assertFalse(caps.hasCapability(NET_CAPABILITY_NOT_METERED));
-        assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_ROAMING));
-        assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_CONGESTED));
-        assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
-
-        Vpn.applyUnderlyingCapabilities(
-                mConnectivityManager,
-                new Network[] {mobile, wifi},
-                caps,
-                false /* isAlwaysMetered */);
-        assertTrue(caps.hasTransport(TRANSPORT_VPN));
-        assertTrue(caps.hasTransport(TRANSPORT_CELLULAR));
-        assertTrue(caps.hasTransport(TRANSPORT_WIFI));
-        assertEquals(10, caps.getLinkDownstreamBandwidthKbps());
-        assertEquals(20, caps.getLinkUpstreamBandwidthKbps());
-        assertFalse(caps.hasCapability(NET_CAPABILITY_NOT_METERED));
-        assertFalse(caps.hasCapability(NET_CAPABILITY_NOT_ROAMING));
-        assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_CONGESTED));
-        assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
-    }
-
     /**
      * The profile name should NOT change between releases for backwards compatibility
      *
@@ -1325,15 +1220,14 @@
          * @see UserManagerService#getUsers(boolean)
          */
         doAnswer(invocation -> {
-            final boolean excludeDying = (boolean) invocation.getArguments()[0];
             final ArrayList<UserInfo> result = new ArrayList<>(users.length);
             for (UserInfo ui : users) {
-                if (!excludeDying || (ui.isEnabled() && !ui.partial)) {
+                if (ui.isEnabled() && !ui.partial) {
                     result.add(ui);
                 }
             }
             return result;
-        }).when(mUserManager).getUsers(anyBoolean());
+        }).when(mUserManager).getAliveUsers();
 
         doAnswer(invocation -> {
             final int id = (int) invocation.getArguments()[0];