1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.net; 18 19 import android.annotation.SystemService; 20 import android.content.Context; 21 import android.os.RemoteException; 22 import android.os.ServiceManager; 23 import android.util.Log; 24 25 import com.android.internal.net.INetworkWatchlistManager; 26 import com.android.internal.util.Preconditions; 27 28 /** 29 * Class that manage network watchlist in system. 30 * @hide 31 */ 32 @SystemService(Context.NETWORK_WATCHLIST_SERVICE) 33 public class NetworkWatchlistManager { 34 35 private static final String TAG = "NetworkWatchlistManager"; 36 private static final String SHARED_MEMORY_TAG = "NETWORK_WATCHLIST_SHARED_MEMORY"; 37 38 private final Context mContext; 39 private final INetworkWatchlistManager mNetworkWatchlistManager; 40 41 /** 42 * @hide 43 */ NetworkWatchlistManager(Context context, INetworkWatchlistManager manager)44 public NetworkWatchlistManager(Context context, INetworkWatchlistManager manager) { 45 mContext = context; 46 mNetworkWatchlistManager = manager; 47 } 48 49 /** 50 * @hide 51 */ NetworkWatchlistManager(Context context)52 public NetworkWatchlistManager(Context context) { 53 mContext = Preconditions.checkNotNull(context, "missing context"); 54 mNetworkWatchlistManager = (INetworkWatchlistManager) 55 INetworkWatchlistManager.Stub.asInterface( 56 ServiceManager.getService(Context.NETWORK_WATCHLIST_SERVICE)); 57 } 58 59 /** 60 * Report network watchlist records if necessary. 61 * 62 * Watchlist report process will summarize records into a single report, then the 63 * report will be processed by differential privacy framework and stored on disk. 64 * 65 * @hide 66 */ reportWatchlistIfNecessary()67 public void reportWatchlistIfNecessary() { 68 try { 69 mNetworkWatchlistManager.reportWatchlistIfNecessary(); 70 } catch (RemoteException e) { 71 Log.e(TAG, "Cannot report records", e); 72 e.rethrowFromSystemServer(); 73 } 74 } 75 76 /** 77 * Reload network watchlist. 78 * 79 * @hide 80 */ reloadWatchlist()81 public void reloadWatchlist() { 82 try { 83 mNetworkWatchlistManager.reloadWatchlist(); 84 } catch (RemoteException e) { 85 Log.e(TAG, "Unable to reload watchlist"); 86 e.rethrowFromSystemServer(); 87 } 88 } 89 90 /** 91 * Get Network Watchlist config file hash. 92 */ getWatchlistConfigHash()93 public byte[] getWatchlistConfigHash() { 94 try { 95 return mNetworkWatchlistManager.getWatchlistConfigHash(); 96 } catch (RemoteException e) { 97 Log.e(TAG, "Unable to get watchlist config hash"); 98 throw e.rethrowFromSystemServer(); 99 } 100 } 101 } 102