Migrate framework-connectivity internal resources
Use ServiceConnectivityResources instead.
Start by creating resources in the ServiceConnectivityResources package
to match the internal configuration, and common overlays.
Bug: 182125649
Test: device boots, has connectivity
Change-Id: I77a3efca2cd644f9828db1ed5d3cae8070fb8363
Merged-In: I77a3efca2cd644f9828db1ed5d3cae8070fb8363
diff --git a/framework/src/android/net/ConnectivityResources.java b/framework/src/android/net/ConnectivityResources.java
new file mode 100644
index 0000000..18f0de0
--- /dev/null
+++ b/framework/src/android/net/ConnectivityResources.java
@@ -0,0 +1,108 @@
+/*
+ * 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.
+ */
+
+package android.net;
+
+import static android.content.pm.PackageManager.MATCH_SYSTEM_ONLY;
+
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.content.res.Resources;
+import android.util.Log;
+
+import com.android.internal.annotations.VisibleForTesting;
+
+import java.util.List;
+
+/**
+ * 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 =
+ "com.android.server.connectivity.intent.action.SERVICE_CONNECTIVITY_RESOURCES_APK";
+ private static final String RES_PKG_DIR = "/apex/com.android.tethering/";
+
+ @NonNull
+ private final Context mContext;
+
+ @Nullable
+ private Context mResourcesContext = null;
+
+ @Nullable
+ private static Context sTestResourcesContext = null;
+
+ public ConnectivityResources(Context context) {
+ mContext = context;
+ }
+
+ /**
+ * Convenience method to mock all resources for the duration of a test.
+ *
+ * Call with a null context to reset after the test.
+ */
+ @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()
+ .queryIntentActivities(new Intent(RESOURCES_APK_INTENT), MATCH_SYSTEM_ONLY);
+ pkgs.removeIf(pkg -> !pkg.activityInfo.applicationInfo.sourceDir.startsWith(RES_PKG_DIR));
+ if (pkgs.size() > 1) {
+ Log.wtf(ConnectivityResources.class.getSimpleName(),
+ "More than one package found: " + pkgs);
+ }
+ if (pkgs.isEmpty()) {
+ throw new IllegalStateException("No connectivity resource package found");
+ }
+
+ final Context pkgContext;
+ try {
+ pkgContext = mContext.createPackageContext(
+ pkgs.get(0).activityInfo.applicationInfo.packageName, 0 /* flags */);
+ } catch (PackageManager.NameNotFoundException e) {
+ throw new IllegalStateException("Resolved package not found", e);
+ }
+
+ 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/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() {