diff --git a/framework/Android.bp b/framework/Android.bp
index 86433e1..017ff51 100644
--- a/framework/Android.bp
+++ b/framework/Android.bp
@@ -23,6 +23,25 @@
     default_applicable_licenses: ["frameworks_base_license"],
 }
 
+java_library {
+    name: "framework-connectivity-protos",
+    proto: {
+        type: "nano",
+    },
+    srcs: [
+        // TODO: consider moving relevant .proto files directly to the module directory
+        ":framework-javastream-protos",
+    ],
+    apex_available: [
+        "//apex_available:platform",
+        "com.android.tethering",
+    ],
+    jarjar_rules: "jarjar-rules-proto.txt",
+    visibility: [
+        "//visibility:private",
+    ],
+}
+
 filegroup {
     name: "framework-connectivity-internal-sources",
     srcs: [
@@ -111,6 +130,7 @@
         "ServiceConnectivityResources",
     ],
     static_libs: [
+        "framework-connectivity-protos",
         "net-utils-device-common",
     ],
     jarjar_rules: "jarjar-rules.txt",
diff --git a/framework/jarjar-rules-proto.txt b/framework/jarjar-rules-proto.txt
new file mode 100644
index 0000000..37b4dec
--- /dev/null
+++ b/framework/jarjar-rules-proto.txt
@@ -0,0 +1,3 @@
+keep android.net.NetworkCapabilitiesProto
+keep android.net.NetworkProto
+keep android.net.NetworkRequestProto
diff --git a/framework/jarjar-rules.txt b/framework/jarjar-rules.txt
index 381a4ac..0959840 100644
--- a/framework/jarjar-rules.txt
+++ b/framework/jarjar-rules.txt
@@ -5,3 +5,6 @@
 zap com.android.net.module.annotation.**
 zap com.android.internal.annotations.**
 
+rule android.net.NetworkCapabilitiesProto* android.net.connectivity.proto.NetworkCapabilitiesProto@1
+rule android.net.NetworkProto* android.net.connectivity.proto.NetworkProto@1
+rule android.net.NetworkRequestProto* android.net.connectivity.proto.NetworkRequestProto@1
diff --git a/framework/src/android/net/ConnectivityManager.java b/framework/src/android/net/ConnectivityManager.java
index 786ed24..eac896c 100644
--- a/framework/src/android/net/ConnectivityManager.java
+++ b/framework/src/android/net/ConnectivityManager.java
@@ -62,7 +62,6 @@
 import android.os.Process;
 import android.os.RemoteException;
 import android.os.ResultReceiver;
-import android.os.ServiceManager;
 import android.os.ServiceSpecificException;
 import android.os.UserHandle;
 import android.provider.Settings;
@@ -842,7 +841,6 @@
 
     private final Context mContext;
 
-    private INetworkPolicyManager mNPManager;
     private final TetheringManager mTetheringManager;
 
     /**
@@ -2319,7 +2317,7 @@
             @NonNull String callingPackage, @Nullable String callingAttributionTag,
             boolean throwException) {
         return Settings.checkAndNoteWriteSettingsOperation(context, uid, callingPackage,
-                throwException);
+                callingAttributionTag, throwException);
     }
 
     /**
@@ -4786,17 +4784,6 @@
     public @interface RestrictBackgroundStatus {
     }
 
-    private INetworkPolicyManager getNetworkPolicyManager() {
-        synchronized (this) {
-            if (mNPManager != null) {
-                return mNPManager;
-            }
-            mNPManager = INetworkPolicyManager.Stub.asInterface(ServiceManager
-                    .getService(Context.NETWORK_POLICY_SERVICE));
-            return mNPManager;
-        }
-    }
-
     /**
      * Determines if the calling application is subject to metered network restrictions while
      * running on background.
@@ -4807,7 +4794,7 @@
      */
     public @RestrictBackgroundStatus int getRestrictBackgroundStatus() {
         try {
-            return getNetworkPolicyManager().getRestrictBackgroundByCaller();
+            return mService.getRestrictBackgroundStatusByCaller();
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
diff --git a/services/core/java/com/android/server/connectivity/ConnectivityResources.java b/framework/src/android/net/ConnectivityResources.java
similarity index 69%
rename from services/core/java/com/android/server/connectivity/ConnectivityResources.java
rename to framework/src/android/net/ConnectivityResources.java
index 45cf21e..18f0de0 100644
--- a/services/core/java/com/android/server/connectivity/ConnectivityResources.java
+++ b/framework/src/android/net/ConnectivityResources.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.android.server.connectivity;
+package android.net;
 
 import static android.content.pm.PackageManager.MATCH_SYSTEM_ONLY;
 
@@ -27,13 +27,14 @@
 import android.content.res.Resources;
 import android.util.Log;
 
-import com.android.server.ConnectivityService;
+import com.android.internal.annotations.VisibleForTesting;
 
 import java.util.List;
 
 /**
- * Utility to obtain the {@link ConnectivityService} {@link Resources}, in the
+ * Utility to obtain the {@link com.android.server.ConnectivityService} {@link Resources}, in the
  * ServiceConnectivityResources APK.
+ * @hide
  */
 public class ConnectivityResources {
     private static final String RESOURCES_APK_INTENT =
@@ -44,18 +45,35 @@
     private final Context mContext;
 
     @Nullable
-    private Resources mResources = null;
+    private Context mResourcesContext = null;
+
+    @Nullable
+    private static Context sTestResourcesContext = null;
 
     public ConnectivityResources(Context context) {
         mContext = context;
     }
 
     /**
-     * Get the {@link Resources} of the ServiceConnectivityResources APK.
+     * Convenience method to mock all resources for the duration of a test.
+     *
+     * Call with a null context to reset after the test.
      */
-    public synchronized Resources get() {
-        if (mResources != null) {
-            return mResources;
+    @VisibleForTesting
+    public static void setResourcesContextForTest(@Nullable Context testContext) {
+        sTestResourcesContext = testContext;
+    }
+
+    /**
+     * Get the {@link Context} of the resources package.
+     */
+    public synchronized Context getResourcesContext() {
+        if (sTestResourcesContext != null) {
+            return sTestResourcesContext;
+        }
+
+        if (mResourcesContext != null) {
+            return mResourcesContext;
         }
 
         final List<ResolveInfo> pkgs = mContext.getPackageManager()
@@ -77,7 +95,14 @@
             throw new IllegalStateException("Resolved package not found", e);
         }
 
-        mResources = pkgContext.getResources();
-        return mResources;
+        mResourcesContext = pkgContext;
+        return pkgContext;
+    }
+
+    /**
+     * Get the {@link Resources} of the ServiceConnectivityResources APK.
+     */
+    public Resources get() {
+        return getResourcesContext().getResources();
     }
 }
diff --git a/framework/src/android/net/IConnectivityManager.aidl b/framework/src/android/net/IConnectivityManager.aidl
index d83cc16..98f3d40 100644
--- a/framework/src/android/net/IConnectivityManager.aidl
+++ b/framework/src/android/net/IConnectivityManager.aidl
@@ -220,4 +220,6 @@
 
     void setProfileNetworkPreference(in UserHandle profile, int preference,
             in IOnCompleteListener listener);
+
+    int getRestrictBackgroundStatusByCaller();
 }
diff --git a/framework/src/android/net/apf/ApfCapabilities.java b/framework/src/android/net/apf/ApfCapabilities.java
index bf5b26e..85b2471 100644
--- a/framework/src/android/net/apf/ApfCapabilities.java
+++ b/framework/src/android/net/apf/ApfCapabilities.java
@@ -19,12 +19,12 @@
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.SystemApi;
+import android.content.Context;
 import android.content.res.Resources;
+import android.net.ConnectivityResources;
 import android.os.Parcel;
 import android.os.Parcelable;
 
-import com.android.internal.R;
-
 /**
  * APF program support capabilities. APF stands for Android Packet Filtering and it is a flexible
  * way to drop unwanted network packets to save power.
@@ -36,6 +36,8 @@
  */
 @SystemApi
 public final class ApfCapabilities implements Parcelable {
+    private static ConnectivityResources sResources;
+
     /**
      * Version of APF instruction set supported for packet filtering. 0 indicates no support for
      * packet filtering using APF programs.
@@ -65,6 +67,14 @@
         apfPacketFormat = in.readInt();
     }
 
+    @NonNull
+    private static synchronized ConnectivityResources getResources(@NonNull Context ctx) {
+        if (sResources == null)  {
+            sResources = new ConnectivityResources(ctx);
+        }
+        return sResources;
+    }
+
 
     @Override
     public int describeContents() {
@@ -121,13 +131,43 @@
      * @return Whether the APF Filter in the device should filter out IEEE 802.3 Frames.
      */
     public static boolean getApfDrop8023Frames() {
-        return Resources.getSystem().getBoolean(R.bool.config_apfDrop802_3Frames);
+        // TODO(b/183076074): remove reading resources from system resources
+        final Resources systemRes = Resources.getSystem();
+        final int id = systemRes.getIdentifier("config_apfDrop802_3Frames", "bool", "android");
+        return systemRes.getBoolean(id);
+    }
+
+    /**
+     * @return Whether the APF Filter in the device should filter out IEEE 802.3 Frames.
+     * @hide
+     */
+    public static boolean getApfDrop8023Frames(@NonNull Context context) {
+        final ConnectivityResources res = getResources(context);
+        // TODO(b/183076074): use R.bool.config_apfDrop802_3Frames directly
+        final int id = res.get().getIdentifier("config_apfDrop802_3Frames", "bool",
+                res.getResourcesContext().getPackageName());
+        return res.get().getBoolean(id);
     }
 
     /**
      * @return An array of denylisted EtherType, packets with EtherTypes within it will be dropped.
      */
     public static @NonNull int[] getApfEtherTypeBlackList() {
-        return Resources.getSystem().getIntArray(R.array.config_apfEthTypeBlackList);
+        // TODO(b/183076074): remove reading resources from system resources
+        final Resources systemRes = Resources.getSystem();
+        final int id = systemRes.getIdentifier("config_apfEthTypeBlackList", "array", "android");
+        return systemRes.getIntArray(id);
+    }
+
+    /**
+     * @return An array of denylisted EtherType, packets with EtherTypes within it will be dropped.
+     * @hide
+     */
+    public static @NonNull int[] getApfEtherTypeDenyList(@NonNull Context context) {
+        final ConnectivityResources res = getResources(context);
+        // TODO(b/183076074): use R.array.config_apfEthTypeDenyList directly
+        final int id = res.get().getIdentifier("config_apfEthTypeDenyList", "array",
+                res.getResourcesContext().getPackageName());
+        return res.get().getIntArray(id);
     }
 }
diff --git a/framework/src/android/net/util/KeepaliveUtils.java b/framework/src/android/net/util/KeepaliveUtils.java
index bfc4563..8d7a0b3 100644
--- a/framework/src/android/net/util/KeepaliveUtils.java
+++ b/framework/src/android/net/util/KeepaliveUtils.java
@@ -19,12 +19,11 @@
 import android.annotation.NonNull;
 import android.content.Context;
 import android.content.res.Resources;
+import android.net.ConnectivityResources;
 import android.net.NetworkCapabilities;
 import android.text.TextUtils;
 import android.util.AndroidRuntimeException;
 
-import com.android.internal.R;
-
 /**
  * Collection of utilities for socket keepalive offload.
  *
@@ -52,8 +51,11 @@
     public static int[] getSupportedKeepalives(@NonNull Context context) {
         String[] res = null;
         try {
-            res = context.getResources().getStringArray(
-                    R.array.config_networkSupportedKeepaliveCount);
+            final ConnectivityResources connRes = new ConnectivityResources(context);
+            // TODO: use R.id.config_networkSupportedKeepaliveCount directly
+            final int id = connRes.get().getIdentifier("config_networkSupportedKeepaliveCount",
+                    "array", connRes.getResourcesContext().getPackageName());
+            res = new ConnectivityResources(context).get().getStringArray(id);
         } catch (Resources.NotFoundException unused) {
         }
         if (res == null) throw new KeepaliveDeviceConfigurationException("invalid resource");
diff --git a/framework/src/android/net/util/MultinetworkPolicyTracker.java b/framework/src/android/net/util/MultinetworkPolicyTracker.java
index 6a49aa2..0b42a00 100644
--- a/framework/src/android/net/util/MultinetworkPolicyTracker.java
+++ b/framework/src/android/net/util/MultinetworkPolicyTracker.java
@@ -27,6 +27,7 @@
 import android.content.IntentFilter;
 import android.content.res.Resources;
 import android.database.ContentObserver;
+import android.net.ConnectivityResources;
 import android.net.Uri;
 import android.os.Handler;
 import android.provider.Settings;
@@ -35,7 +36,6 @@
 import android.telephony.TelephonyManager;
 import android.util.Log;
 
-import com.android.internal.R;
 import com.android.internal.annotations.VisibleForTesting;
 
 import java.util.Arrays;
@@ -64,6 +64,7 @@
     private static String TAG = MultinetworkPolicyTracker.class.getSimpleName();
 
     private final Context mContext;
+    private final ConnectivityResources mResources;
     private final Handler mHandler;
     private final Runnable mAvoidBadWifiCallback;
     private final List<Uri> mSettingsUris;
@@ -107,6 +108,7 @@
 
     public MultinetworkPolicyTracker(Context ctx, Handler handler, Runnable avoidBadWifiCallback) {
         mContext = ctx;
+        mResources = new ConnectivityResources(ctx);
         mHandler = handler;
         mAvoidBadWifiCallback = avoidBadWifiCallback;
         mSettingsUris = Arrays.asList(
@@ -160,12 +162,16 @@
      * Whether the device or carrier configuration disables avoiding bad wifi by default.
      */
     public boolean configRestrictsAvoidBadWifi() {
-        return (getResourcesForActiveSubId().getInteger(R.integer.config_networkAvoidBadWifi) == 0);
+        // TODO: use R.integer.config_networkAvoidBadWifi directly
+        final int id = mResources.get().getIdentifier("config_networkAvoidBadWifi",
+                "integer", mResources.getResourcesContext().getPackageName());
+        return (getResourcesForActiveSubId().getInteger(id) == 0);
     }
 
     @NonNull
     private Resources getResourcesForActiveSubId() {
-        return SubscriptionManager.getResourcesForSubId(mContext, mActiveSubId);
+        return SubscriptionManager.getResourcesForSubId(
+                mResources.getResourcesContext(), mActiveSubId);
     }
 
     /**
@@ -205,8 +211,10 @@
      * The default (device and carrier-dependent) value for metered multipath preference.
      */
     public int configMeteredMultipathPreference() {
-        return mContext.getResources().getInteger(
-                R.integer.config_networkMeteredMultipathPreference);
+        // TODO: use R.integer.config_networkMeteredMultipathPreference directly
+        final int id = mResources.get().getIdentifier("config_networkMeteredMultipathPreference",
+                "integer", mResources.getResourcesContext().getPackageName());
+        return mResources.get().getInteger(id);
     }
 
     public void updateMeteredMultipathPreference() {
diff --git a/service/ServiceConnectivityResources/Android.bp b/service/ServiceConnectivityResources/Android.bp
index f2446b7..fa4501a 100644
--- a/service/ServiceConnectivityResources/Android.bp
+++ b/service/ServiceConnectivityResources/Android.bp
@@ -21,7 +21,7 @@
 
 android_app {
     name: "ServiceConnectivityResources",
-    sdk_version: "system_current",
+    sdk_version: "module_current",
     resource_dirs: [
         "res",
     ],
diff --git a/service/ServiceConnectivityResources/res/values-mcc204-mnc04/config.xml b/service/ServiceConnectivityResources/res/values-mcc204-mnc04/config.xml
new file mode 100644
index 0000000..7e7025f
--- /dev/null
+++ b/service/ServiceConnectivityResources/res/values-mcc204-mnc04/config.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2021 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<!-- Configuration values for ConnectivityService
+     DO NOT EDIT THIS FILE for specific device configuration; instead, use a Runtime Resources
+     Overlay package following the overlayable.xml configuration in the same directory:
+     https://source.android.com/devices/architecture/rros -->
+<resources>
+    <!-- Whether the device should automatically switch away from Wi-Fi networks that lose
+         Internet access. Actual device behaviour is controlled by
+         Settings.Global.NETWORK_AVOID_BAD_WIFI. This is the default value of that setting. -->
+    <integer translatable="false" name="config_networkAvoidBadWifi">0</integer>
+</resources>
\ No newline at end of file
diff --git a/service/ServiceConnectivityResources/res/values-mcc310-mnc004/config.xml b/service/ServiceConnectivityResources/res/values-mcc310-mnc004/config.xml
new file mode 100644
index 0000000..7e7025f
--- /dev/null
+++ b/service/ServiceConnectivityResources/res/values-mcc310-mnc004/config.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2021 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<!-- Configuration values for ConnectivityService
+     DO NOT EDIT THIS FILE for specific device configuration; instead, use a Runtime Resources
+     Overlay package following the overlayable.xml configuration in the same directory:
+     https://source.android.com/devices/architecture/rros -->
+<resources>
+    <!-- Whether the device should automatically switch away from Wi-Fi networks that lose
+         Internet access. Actual device behaviour is controlled by
+         Settings.Global.NETWORK_AVOID_BAD_WIFI. This is the default value of that setting. -->
+    <integer translatable="false" name="config_networkAvoidBadWifi">0</integer>
+</resources>
\ No newline at end of file
diff --git a/service/ServiceConnectivityResources/res/values-mcc311-mnc480/config.xml b/service/ServiceConnectivityResources/res/values-mcc311-mnc480/config.xml
new file mode 100644
index 0000000..7e7025f
--- /dev/null
+++ b/service/ServiceConnectivityResources/res/values-mcc311-mnc480/config.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2021 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<!-- Configuration values for ConnectivityService
+     DO NOT EDIT THIS FILE for specific device configuration; instead, use a Runtime Resources
+     Overlay package following the overlayable.xml configuration in the same directory:
+     https://source.android.com/devices/architecture/rros -->
+<resources>
+    <!-- Whether the device should automatically switch away from Wi-Fi networks that lose
+         Internet access. Actual device behaviour is controlled by
+         Settings.Global.NETWORK_AVOID_BAD_WIFI. This is the default value of that setting. -->
+    <integer translatable="false" name="config_networkAvoidBadWifi">0</integer>
+</resources>
\ No newline at end of file
diff --git a/service/ServiceConnectivityResources/res/values/config.xml b/service/ServiceConnectivityResources/res/values/config.xml
index 06c8192..71674e4 100644
--- a/service/ServiceConnectivityResources/res/values/config.xml
+++ b/service/ServiceConnectivityResources/res/values/config.xml
@@ -52,4 +52,41 @@
         <item>12,60000</item><!-- mobile_cbs -->
     </string-array>
 
-</resources>
\ No newline at end of file
+    <!-- Whether the APF Filter in the device should filter out IEEE 802.3 Frames
+         Those frames are identified by the field Eth-type having values
+         less than 0x600 -->
+    <bool translatable="false" name="config_apfDrop802_3Frames">true</bool>
+
+    <!-- An array of Denylisted EtherType, packets with EtherTypes within this array
+         will be dropped
+         TODO: need to put proper values, these are for testing purposes only -->
+    <integer-array translatable="false" name="config_apfEthTypeDenyList">
+        <item>0x88A2</item>
+        <item>0x88A4</item>
+        <item>0x88B8</item>
+        <item>0x88CD</item>
+        <item>0x88E3</item>
+    </integer-array>
+
+    <!-- Default supported concurrent socket keepalive slots per transport type, used by
+         ConnectivityManager.createSocketKeepalive() for calculating the number of keepalive
+         offload slots that should be reserved for privileged access. This string array should be
+         overridden by the device to present the capability of creating socket keepalives. -->
+    <!-- An Array of "[NetworkCapabilities.TRANSPORT_*],[supported keepalives] -->
+    <string-array translatable="false" name="config_networkSupportedKeepaliveCount">
+        <item>0,1</item>
+        <item>1,3</item>
+    </string-array>
+
+
+    <!-- Default value for ConnectivityManager.getMultipathPreference() on metered networks. Actual
+         device behaviour is controlled by the metered multipath preference in
+         ConnectivitySettingsManager. This is the default value of that setting. -->
+    <integer translatable="false" name="config_networkMeteredMultipathPreference">0</integer>
+
+    <!-- Whether the device should automatically switch away from Wi-Fi networks that lose
+         Internet access. Actual device behaviour is controlled by
+         Settings.Global.NETWORK_AVOID_BAD_WIFI. This is the default value of that setting. -->
+    <integer translatable="false" name="config_networkAvoidBadWifi">1</integer>
+
+</resources>
diff --git a/service/ServiceConnectivityResources/res/values/overlayable.xml b/service/ServiceConnectivityResources/res/values/overlayable.xml
index da8aee5..25e19ce 100644
--- a/service/ServiceConnectivityResources/res/values/overlayable.xml
+++ b/service/ServiceConnectivityResources/res/values/overlayable.xml
@@ -21,6 +21,11 @@
             <item type="string" name="config_networkCaptivePortalServerUrl"/>
             <item type="integer" name="config_networkTransitionTimeout"/>
             <item type="array" name="config_wakeonlan_supported_interfaces"/>
+            <item type="bool" name="config_apfDrop802_3Frames"/>
+            <item type="array" name="config_apfEthTypeDenyList"/>
+            <item type="integer" name="config_networkMeteredMultipathPreference"/>
+            <item type="array" name="config_networkSupportedKeepaliveCount"/>
+            <item type="integer" name="config_networkAvoidBadWifi"/>
 
         </policy>
     </overlayable>
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index a64e684..512cc72 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -106,6 +106,7 @@
 import android.net.ConnectivityDiagnosticsManager.DataStallReport;
 import android.net.ConnectivityManager;
 import android.net.ConnectivityManager.NetworkCallback;
+import android.net.ConnectivityManager.RestrictBackgroundStatus;
 import android.net.ConnectivitySettingsManager;
 import android.net.DataStallReportParcelable;
 import android.net.DnsResolverServiceManager;
@@ -164,6 +165,7 @@
 import android.net.Uri;
 import android.net.VpnManager;
 import android.net.VpnTransportInfo;
+import android.net.ConnectivityResources;
 import android.net.metrics.IpConnectivityLog;
 import android.net.metrics.NetworkEvent;
 import android.net.netlink.InetDiagMessage;
@@ -222,7 +224,6 @@
 import com.android.net.module.util.NetworkCapabilitiesUtils;
 import com.android.net.module.util.PermissionUtils;
 import com.android.server.connectivity.AutodestructReference;
-import com.android.server.connectivity.ConnectivityResources;
 import com.android.server.connectivity.DnsManager;
 import com.android.server.connectivity.DnsManager.PrivateDnsValidationUpdate;
 import com.android.server.connectivity.KeepaliveTracker;
@@ -1997,6 +1998,18 @@
         }
     }
 
+    @Override
+    public @RestrictBackgroundStatus int getRestrictBackgroundStatusByCaller() {
+        enforceAccessPermission();
+        final int callerUid = Binder.getCallingUid();
+        final long token = Binder.clearCallingIdentity();
+        try {
+            return mPolicyManager.getRestrictBackgroundStatus(callerUid);
+        } finally {
+            Binder.restoreCallingIdentity(token);
+        }
+    }
+
     // TODO: Consider delete this function or turn it into a no-op method.
     @Override
     public NetworkState[] getAllNetworkState() {
@@ -4403,7 +4416,13 @@
         final NetworkPolicyManager netPolicyManager =
                  mContext.getSystemService(NetworkPolicyManager.class);
 
-        final int networkPreference = netPolicyManager.getMultipathPreference(network);
+        final long token = Binder.clearCallingIdentity();
+        final int networkPreference;
+        try {
+            networkPreference = netPolicyManager.getMultipathPreference(network);
+        } finally {
+            Binder.restoreCallingIdentity(token);
+        }
         if (networkPreference != 0) {
             return networkPreference;
         }
diff --git a/services/core/java/com/android/server/connectivity/NetworkDiagnostics.java b/services/core/java/com/android/server/connectivity/NetworkDiagnostics.java
index 5e6b9f3..2e51be3 100644
--- a/services/core/java/com/android/server/connectivity/NetworkDiagnostics.java
+++ b/services/core/java/com/android/server/connectivity/NetworkDiagnostics.java
@@ -36,7 +36,7 @@
 import android.util.Pair;
 
 import com.android.internal.util.IndentingPrintWriter;
-import com.android.internal.util.TrafficStatsConstants;
+import com.android.net.module.util.NetworkStackConstants;
 
 import libcore.io.IoUtils;
 
@@ -446,7 +446,7 @@
                 int sockType, int protocol, long writeTimeout, long readTimeout, int dstPort)
                 throws ErrnoException, IOException {
             final int oldTag = TrafficStats.getAndSetThreadStatsTag(
-                    TrafficStatsConstants.TAG_SYSTEM_PROBE);
+                    NetworkStackConstants.TAG_SYSTEM_PROBE);
             try {
                 mFileDescriptor = Os.socket(mAddressFamily, sockType, protocol);
             } finally {
@@ -745,7 +745,7 @@
             if (ensureMeasurementNecessary()) return;
 
             // No need to restore the tag, since this thread is only used for this measurement.
-            TrafficStats.getAndSetThreadStatsTag(TrafficStatsConstants.TAG_SYSTEM_PROBE);
+            TrafficStats.getAndSetThreadStatsTag(NetworkStackConstants.TAG_SYSTEM_PROBE);
 
             try (SSLSocket sslSocket = setupSSLSocket()) {
                 sendDoTProbe(sslSocket);
diff --git a/tests/net/java/android/net/util/KeepaliveUtilsTest.kt b/tests/net/java/android/net/util/KeepaliveUtilsTest.kt
index 8ea226d..b62bdbc 100644
--- a/tests/net/java/android/net/util/KeepaliveUtilsTest.kt
+++ b/tests/net/java/android/net/util/KeepaliveUtilsTest.kt
@@ -18,6 +18,7 @@
 
 import android.content.Context
 import android.content.res.Resources
+import android.net.ConnectivityResources
 import android.net.NetworkCapabilities
 import android.net.NetworkCapabilities.MAX_TRANSPORT
 import android.net.NetworkCapabilities.TRANSPORT_CELLULAR
@@ -26,13 +27,15 @@
 import android.net.NetworkCapabilities.TRANSPORT_WIFI
 import androidx.test.filters.SmallTest
 import com.android.internal.R
+import org.junit.After
 import org.junit.Assert.assertArrayEquals
 import org.junit.Assert.assertEquals
 import org.junit.Assert.fail
 import org.junit.Test
 import org.junit.runner.RunWith
 import org.junit.runners.JUnit4
-import org.mockito.ArgumentMatchers
+import org.mockito.ArgumentMatchers.eq
+import org.mockito.Mockito.any
 import org.mockito.Mockito.doReturn
 import org.mockito.Mockito.mock
 
@@ -47,21 +50,33 @@
 class KeepaliveUtilsTest {
 
     // Prepare mocked context with given resource strings.
-    private fun getMockedContextWithStringArrayRes(id: Int, res: Array<out String?>?): Context {
+    private fun getMockedContextWithStringArrayRes(
+        id: Int,
+        name: String,
+        res: Array<out String?>?
+    ): Context {
         val mockRes = mock(Resources::class.java)
-        doReturn(res).`when`(mockRes).getStringArray(ArgumentMatchers.eq(id))
+        doReturn(res).`when`(mockRes).getStringArray(eq(id))
+        doReturn(id).`when`(mockRes).getIdentifier(eq(name), any(), any())
 
         return mock(Context::class.java).apply {
             doReturn(mockRes).`when`(this).getResources()
+            ConnectivityResources.setResourcesContextForTest(this)
         }
     }
 
+    @After
+    fun tearDown() {
+        ConnectivityResources.setResourcesContextForTest(null)
+    }
+
     @Test
     fun testGetSupportedKeepalives() {
         fun assertRunWithException(res: Array<out String?>?) {
             try {
                 val mockContext = getMockedContextWithStringArrayRes(
-                        R.array.config_networkSupportedKeepaliveCount, res)
+                        R.array.config_networkSupportedKeepaliveCount,
+                        "config_networkSupportedKeepaliveCount", res)
                 KeepaliveUtils.getSupportedKeepalives(mockContext)
                 fail("Expected KeepaliveDeviceConfigurationException")
             } catch (expected: KeepaliveUtils.KeepaliveDeviceConfigurationException) {
@@ -89,7 +104,8 @@
         val expectedValidRes = intArrayOf(3, 0, 0, 0, 4, 0, 0, 0)
 
         val mockContext = getMockedContextWithStringArrayRes(
-                R.array.config_networkSupportedKeepaliveCount, validRes)
+                R.array.config_networkSupportedKeepaliveCount,
+                "config_networkSupportedKeepaliveCount", validRes)
         val actual = KeepaliveUtils.getSupportedKeepalives(mockContext)
         assertArrayEquals(expectedValidRes, actual)
     }
diff --git a/tests/net/java/android/net/util/MultinetworkPolicyTrackerTest.kt b/tests/net/java/android/net/util/MultinetworkPolicyTrackerTest.kt
index 1945ce7..25aa626 100644
--- a/tests/net/java/android/net/util/MultinetworkPolicyTrackerTest.kt
+++ b/tests/net/java/android/net/util/MultinetworkPolicyTrackerTest.kt
@@ -21,6 +21,7 @@
 import android.net.ConnectivityManager.MULTIPATH_PREFERENCE_HANDOVER
 import android.net.ConnectivityManager.MULTIPATH_PREFERENCE_PERFORMANCE
 import android.net.ConnectivityManager.MULTIPATH_PREFERENCE_RELIABILITY
+import android.net.ConnectivityResources
 import android.net.ConnectivitySettingsManager.NETWORK_AVOID_BAD_WIFI
 import android.net.ConnectivitySettingsManager.NETWORK_METERED_MULTIPATH_PREFERENCE
 import android.net.util.MultinetworkPolicyTracker.ActiveDataSubscriptionIdListener
@@ -31,8 +32,9 @@
 import android.test.mock.MockContentResolver
 import androidx.test.filters.SmallTest
 import androidx.test.runner.AndroidJUnit4
-import com.android.internal.R
+import com.android.connectivity.resources.R
 import com.android.internal.util.test.FakeSettingsProvider
+import org.junit.After
 import org.junit.Assert.assertEquals
 import org.junit.Assert.assertFalse
 import org.junit.Assert.assertTrue
@@ -41,6 +43,7 @@
 import org.mockito.ArgumentCaptor
 import org.mockito.ArgumentMatchers.anyInt
 import org.mockito.ArgumentMatchers.argThat
+import org.mockito.ArgumentMatchers.eq
 import org.mockito.Mockito.any
 import org.mockito.Mockito.doReturn
 import org.mockito.Mockito.mock
@@ -57,6 +60,8 @@
 @SmallTest
 class MultinetworkPolicyTrackerTest {
     private val resources = mock(Resources::class.java).also {
+        doReturn(R.integer.config_networkAvoidBadWifi).`when`(it).getIdentifier(
+                eq("config_networkAvoidBadWifi"), eq("integer"), any())
         doReturn(0).`when`(it).getInteger(R.integer.config_networkAvoidBadWifi)
     }
     private val telephonyManager = mock(TelephonyManager::class.java)
@@ -75,6 +80,7 @@
         doReturn(resources).`when`(it).resources
         doReturn(it).`when`(it).createConfigurationContext(any())
         Settings.Global.putString(resolver, NETWORK_AVOID_BAD_WIFI, "1")
+        ConnectivityResources.setResourcesContextForTest(it)
     }
     private val tracker = MultinetworkPolicyTracker(context, null /* handler */)
 
@@ -85,6 +91,11 @@
         assertEquals(preference, tracker.meteredMultipathPreference)
     }
 
+    @After
+    fun tearDown() {
+        ConnectivityResources.setResourcesContextForTest(null)
+    }
+
     @Test
     fun testUpdateMeteredMultipathPreference() {
         assertMultipathPreference(MULTIPATH_PREFERENCE_HANDOVER)
diff --git a/tests/net/java/com/android/server/ConnectivityServiceTest.java b/tests/net/java/com/android/server/ConnectivityServiceTest.java
index bf39a4c..d70572d 100644
--- a/tests/net/java/com/android/server/ConnectivityServiceTest.java
+++ b/tests/net/java/com/android/server/ConnectivityServiceTest.java
@@ -179,6 +179,7 @@
 import android.net.ConnectivityManager.PacketKeepalive;
 import android.net.ConnectivityManager.PacketKeepaliveCallback;
 import android.net.ConnectivityManager.TooManyRequestsException;
+import android.net.ConnectivityResources;
 import android.net.ConnectivitySettingsManager;
 import android.net.ConnectivityThread;
 import android.net.DataStallReportParcelable;
@@ -282,7 +283,6 @@
 import com.android.net.module.util.ArrayTrackRecord;
 import com.android.server.ConnectivityService.ConnectivityDiagnosticsCallbackInfo;
 import com.android.server.connectivity.ConnectivityConstants;
-import com.android.server.connectivity.ConnectivityResources;
 import com.android.server.connectivity.MockableSystemProperties;
 import com.android.server.connectivity.Nat464Xlat;
 import com.android.server.connectivity.NetworkAgentInfo;
@@ -1570,11 +1570,19 @@
                 com.android.connectivity.resources.R.string.config_networkCaptivePortalServerUrl);
         doReturn(new String[]{ WIFI_WOL_IFNAME }).when(mResources).getStringArray(
                 com.android.connectivity.resources.R.array.config_wakeonlan_supported_interfaces);
-        final com.android.server.connectivity.ConnectivityResources connRes = mock(
-                ConnectivityResources.class);
+        doReturn(new String[] { "0,1", "1,3" }).when(mResources).getStringArray(
+                com.android.connectivity.resources.R.array.config_networkSupportedKeepaliveCount);
+        doReturn(com.android.connectivity.resources.R.array.config_networkSupportedKeepaliveCount)
+                .when(mResources).getIdentifier(eq("config_networkSupportedKeepaliveCount"),
+                eq("array"), any());
+        final ConnectivityResources connRes = mock(ConnectivityResources.class);
         doReturn(mResources).when(connRes).get();
         doReturn(connRes).when(deps).getResources(any());
 
+        final Context mockResContext = mock(Context.class);
+        doReturn(mResources).when(mockResContext).getResources();
+        ConnectivityResources.setResourcesContextForTest(mockResContext);
+
         return deps;
     }
 
@@ -1630,6 +1638,7 @@
         waitForIdle();
 
         FakeSettingsProvider.clearSettingsProvider();
+        ConnectivityResources.setResourcesContextForTest(null);
 
         mCsHandlerThread.quitSafely();
         mAlarmManagerThread.quitSafely();
@@ -3779,7 +3788,7 @@
      * @return the context's attribution tag
      */
     private String getAttributionTag() {
-        return null;
+        return mContext.getAttributionTag();
     }
 
     @Test
diff --git a/tests/net/java/com/android/server/connectivity/NetworkNotificationManagerTest.java b/tests/net/java/com/android/server/connectivity/NetworkNotificationManagerTest.java
index ff8c632..d01dc03 100644
--- a/tests/net/java/com/android/server/connectivity/NetworkNotificationManagerTest.java
+++ b/tests/net/java/com/android/server/connectivity/NetworkNotificationManagerTest.java
@@ -20,6 +20,7 @@
 
 import static org.mockito.Mockito.any;
 import static org.mockito.Mockito.anyInt;
+import static org.mockito.Mockito.clearInvocations;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.eq;
 import static org.mockito.Mockito.mock;
@@ -39,6 +40,7 @@
 import android.net.NetworkInfo;
 import android.os.UserHandle;
 import android.telephony.TelephonyManager;
+import android.util.DisplayMetrics;
 
 import androidx.test.filters.SmallTest;
 import androidx.test.runner.AndroidJUnit4;
@@ -88,6 +90,7 @@
 
     @Mock Context mCtx;
     @Mock Resources mResources;
+    @Mock DisplayMetrics mDisplayMetrics;
     @Mock PackageManager mPm;
     @Mock TelephonyManager mTelephonyManager;
     @Mock NotificationManager mNotificationManager;
@@ -99,6 +102,17 @@
 
     NetworkNotificationManager mManager;
 
+
+    @BeforeClass
+    public static void setUpClass() {
+        Notification.DevFlags.sForceDefaults = true;
+    }
+
+    @AfterClass
+    public static void tearDownClass() {
+        Notification.DevFlags.sForceDefaults = false;
+    }
+
     @Before
     public void setUp() {
         MockitoAnnotations.initMocks(this);
@@ -109,6 +123,7 @@
         mCellNai.networkInfo = mNetworkInfo;
         mVpnNai.networkCapabilities = VPN_CAPABILITIES;
         mVpnNai.networkInfo = mNetworkInfo;
+        mDisplayMetrics.density = 2.275f;
         doReturn(true).when(mVpnNai).isVPN();
         when(mCtx.getResources()).thenReturn(mResources);
         when(mCtx.getPackageManager()).thenReturn(mPm);
@@ -120,6 +135,7 @@
                 .thenReturn(mNotificationManager);
         when(mNetworkInfo.getExtraInfo()).thenReturn(TEST_EXTRA_INFO);
         when(mResources.getColor(anyInt(), any())).thenReturn(0xFF607D8B);
+        when(mResources.getDisplayMetrics()).thenReturn(mDisplayMetrics);
 
         mManager = new NetworkNotificationManager(mCtx, mTelephonyManager);
     }
@@ -142,15 +158,15 @@
     public void testTitleOfPrivateDnsBroken() {
         // Test the title of mobile data.
         verifyTitleByNetwork(100, mCellNai, R.string.mobile_no_internet);
-        reset(mResources);
+        clearInvocations(mResources);
 
         // Test the title of wifi.
         verifyTitleByNetwork(101, mWifiNai, R.string.wifi_no_internet);
-        reset(mResources);
+        clearInvocations(mResources);
 
         // Test the title of other networks.
         verifyTitleByNetwork(102, mVpnNai, R.string.other_networks_no_internet);
-        reset(mResources);
+        clearInvocations(mResources);
     }
 
     @Test