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/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.networkstack.tethering;
import android.app.usage.NetworkStatsManager;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothPan;
import android.content.Context;
import android.net.INetd;
import android.net.ip.IpServer;
import android.net.util.SharedLog;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.os.SystemProperties;
import android.text.TextUtils;
import androidx.annotation.NonNull;
import com.android.internal.util.StateMachine;
import com.android.networkstack.apishim.BluetoothPanShimImpl;
import com.android.networkstack.apishim.common.BluetoothPanShim;
import java.util.ArrayList;
/**
* Capture tethering dependencies, for injection.
*
* @hide
*/
public abstract class TetheringDependencies {
/**
* Get a reference to the BpfCoordinator to be used by tethering.
*/
public @NonNull BpfCoordinator getBpfCoordinator(
@NonNull BpfCoordinator.Dependencies deps) {
return new BpfCoordinator(deps);
}
/**
* Get a reference to the offload hardware interface to be used by tethering.
*/
public OffloadHardwareInterface getOffloadHardwareInterface(Handler h, SharedLog log) {
return new OffloadHardwareInterface(h, log);
}
/**
* Get a reference to the offload controller to be used by tethering.
*/
@NonNull
public OffloadController getOffloadController(@NonNull Handler h,
@NonNull SharedLog log, @NonNull OffloadController.Dependencies deps) {
final NetworkStatsManager statsManager =
(NetworkStatsManager) getContext().getSystemService(Context.NETWORK_STATS_SERVICE);
return new OffloadController(h, getOffloadHardwareInterface(h, log),
getContext().getContentResolver(), statsManager, log, deps);
}
/**
* Get a reference to the UpstreamNetworkMonitor to be used by tethering.
*/
public UpstreamNetworkMonitor getUpstreamNetworkMonitor(Context ctx, StateMachine target,
SharedLog log, int what) {
return new UpstreamNetworkMonitor(ctx, target, log, what);
}
/**
* Get a reference to the IPv6TetheringCoordinator to be used by tethering.
*/
public IPv6TetheringCoordinator getIPv6TetheringCoordinator(
ArrayList<IpServer> notifyList, SharedLog log) {
return new IPv6TetheringCoordinator(notifyList, log);
}
/**
* Get dependencies to be used by IpServer.
*/
public abstract IpServer.Dependencies getIpServerDependencies();
/**
* Get a reference to the EntitlementManager to be used by tethering.
*/
public EntitlementManager getEntitlementManager(Context ctx, Handler h, SharedLog log,
Runnable callback) {
return new EntitlementManager(ctx, h, log, callback);
}
/**
* Generate a new TetheringConfiguration according to input sub Id.
*/
public TetheringConfiguration generateTetheringConfiguration(Context ctx, SharedLog log,
int subId) {
return new TetheringConfiguration(ctx, log, subId);
}
/**
* Get a reference to INetd to be used by tethering.
*/
public INetd getINetd(Context context) {
return INetd.Stub.asInterface(
(IBinder) context.getSystemService(Context.NETD_SERVICE));
}
/**
* Get a reference to the TetheringNotificationUpdater to be used by tethering.
*/
public TetheringNotificationUpdater getNotificationUpdater(@NonNull final Context ctx,
@NonNull final Looper looper) {
return new TetheringNotificationUpdater(ctx, looper);
}
/**
* Get tethering thread looper.
*/
public abstract Looper getTetheringLooper();
/**
* Get Context of TetheringSerice.
*/
public abstract Context getContext();
/**
* Get a reference to BluetoothAdapter to be used by tethering.
*/
public abstract BluetoothAdapter getBluetoothAdapter();
/**
* Get SystemProperties which indicate whether tethering is denied.
*/
public boolean isTetheringDenied() {
return TextUtils.equals(SystemProperties.get("ro.tether.denied"), "true");
}
/**
* Get a reference to PrivateAddressCoordinator to be used by Tethering.
*/
public PrivateAddressCoordinator getPrivateAddressCoordinator(Context ctx,
TetheringConfiguration cfg) {
return new PrivateAddressCoordinator(ctx, cfg);
}
/**
* Get BluetoothPanShim object to enable/disable bluetooth tethering.
*
* TODO: use BluetoothPan directly when mainline module is built with API 32.
*/
public BluetoothPanShim getBluetoothPanShim(BluetoothPan pan) {
return BluetoothPanShimImpl.newInstance(pan);
}
}
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