9d7d62801d
This reverts commit eca208fae6d1b6ae9c8c0e42eee092e86dbddbb7 and is the first of the LTE commits in master being back ported to the LTE branch. Change-Id: I17d4a1b779ed74bc7dfb409d2c1a30f60fdb27c7
2192 lines
85 KiB
Java
2192 lines
85 KiB
Java
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.server;
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import android.bluetooth.BluetoothTetheringDataTracker;
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import android.content.ContentResolver;
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import android.content.Context;
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import android.content.Intent;
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import android.content.pm.PackageManager;
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import android.database.ContentObserver;
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import android.net.ConnectivityManager;
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import android.net.DummyDataStateTracker;
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import android.net.EthernetDataTracker;
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import android.net.IConnectivityManager;
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import android.net.LinkProperties;
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import android.net.MobileDataStateTracker;
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import android.net.NetworkInfo;
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import android.net.NetworkStateTracker;
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import android.net.NetworkUtils;
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import android.net.Proxy;
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import android.net.ProxyProperties;
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import android.net.vpn.VpnManager;
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import android.net.wifi.WifiStateTracker;
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import android.os.Binder;
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import android.os.Handler;
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import android.os.HandlerThread;
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import android.os.IBinder;
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import android.os.Looper;
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import android.os.Message;
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import android.os.PowerManager;
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import android.os.RemoteException;
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import android.os.ServiceManager;
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import android.os.SystemProperties;
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import android.provider.Settings;
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import android.text.TextUtils;
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import android.util.EventLog;
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import android.util.Slog;
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import com.android.internal.telephony.Phone;
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import com.android.server.connectivity.Tethering;
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import java.io.FileDescriptor;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.io.PrintWriter;
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import java.net.InetAddress;
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import java.net.UnknownHostException;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.GregorianCalendar;
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import java.util.List;
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/**
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* @hide
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*/
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public class ConnectivityService extends IConnectivityManager.Stub {
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private static final boolean DBG = true;
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private static final String TAG = "ConnectivityService";
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// how long to wait before switching back to a radio's default network
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private static final int RESTORE_DEFAULT_NETWORK_DELAY = 1 * 60 * 1000;
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// system property that can override the above value
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private static final String NETWORK_RESTORE_DELAY_PROP_NAME =
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"android.telephony.apn-restore";
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private Tethering mTethering;
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private boolean mTetheringConfigValid = false;
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/**
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* Sometimes we want to refer to the individual network state
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* trackers separately, and sometimes we just want to treat them
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* abstractly.
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*/
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private NetworkStateTracker mNetTrackers[];
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/**
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* A per Net list of the PID's that requested access to the net
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* used both as a refcount and for per-PID DNS selection
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*/
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private List mNetRequestersPids[];
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private WifiWatchdogService mWifiWatchdogService;
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// priority order of the nettrackers
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// (excluding dynamically set mNetworkPreference)
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// TODO - move mNetworkTypePreference into this
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private int[] mPriorityList;
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private Context mContext;
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private int mNetworkPreference;
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private int mActiveDefaultNetwork = -1;
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// 0 is full bad, 100 is full good
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private int mDefaultInetCondition = 0;
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private int mDefaultInetConditionPublished = 0;
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private boolean mInetConditionChangeInFlight = false;
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private int mDefaultConnectionSequence = 0;
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private int mNumDnsEntries;
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private boolean mTestMode;
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private static ConnectivityService sServiceInstance;
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private AtomicBoolean mBackgroundDataEnabled = new AtomicBoolean(true);
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private static final int ENABLED = 1;
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private static final int DISABLED = 0;
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// Share the event space with NetworkStateTracker (which can't see this
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// internal class but sends us events). If you change these, change
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// NetworkStateTracker.java too.
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private static final int MIN_NETWORK_STATE_TRACKER_EVENT = 1;
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private static final int MAX_NETWORK_STATE_TRACKER_EVENT = 100;
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/**
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* used internally as a delayed event to make us switch back to the
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* default network
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*/
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private static final int EVENT_RESTORE_DEFAULT_NETWORK =
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MAX_NETWORK_STATE_TRACKER_EVENT + 1;
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/**
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* used internally to change our mobile data enabled flag
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*/
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private static final int EVENT_CHANGE_MOBILE_DATA_ENABLED =
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MAX_NETWORK_STATE_TRACKER_EVENT + 2;
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/**
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* used internally to change our network preference setting
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* arg1 = networkType to prefer
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*/
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private static final int EVENT_SET_NETWORK_PREFERENCE =
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MAX_NETWORK_STATE_TRACKER_EVENT + 3;
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/**
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* used internally to synchronize inet condition reports
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* arg1 = networkType
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* arg2 = condition (0 bad, 100 good)
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*/
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private static final int EVENT_INET_CONDITION_CHANGE =
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MAX_NETWORK_STATE_TRACKER_EVENT + 4;
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/**
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* used internally to mark the end of inet condition hold periods
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* arg1 = networkType
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*/
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private static final int EVENT_INET_CONDITION_HOLD_END =
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MAX_NETWORK_STATE_TRACKER_EVENT + 5;
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/**
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* used internally to set the background data preference
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* arg1 = TRUE for enabled, FALSE for disabled
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*/
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private static final int EVENT_SET_BACKGROUND_DATA =
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MAX_NETWORK_STATE_TRACKER_EVENT + 6;
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/**
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* used internally to set enable/disable cellular data
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* arg1 = ENBALED or DISABLED
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*/
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private static final int EVENT_SET_MOBILE_DATA =
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MAX_NETWORK_STATE_TRACKER_EVENT + 7;
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/**
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* used internally to clear a wakelock when transitioning
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* from one net to another
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*/
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private static final int EVENT_CLEAR_NET_TRANSITION_WAKELOCK =
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MAX_NETWORK_STATE_TRACKER_EVENT + 8;
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/**
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* used internally to reload global proxy settings
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*/
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private static final int EVENT_APPLY_GLOBAL_HTTP_PROXY =
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MAX_NETWORK_STATE_TRACKER_EVENT + 9;
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private Handler mHandler;
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// list of DeathRecipients used to make sure features are turned off when
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// a process dies
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private List mFeatureUsers;
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private boolean mSystemReady;
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private Intent mInitialBroadcast;
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private PowerManager.WakeLock mNetTransitionWakeLock;
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private String mNetTransitionWakeLockCausedBy = "";
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private int mNetTransitionWakeLockSerialNumber;
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private int mNetTransitionWakeLockTimeout;
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private InetAddress mDefaultDns;
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// used in DBG mode to track inet condition reports
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private static final int INET_CONDITION_LOG_MAX_SIZE = 15;
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private ArrayList mInetLog;
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// track the current default http proxy - tell the world if we get a new one (real change)
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private ProxyProperties mDefaultProxy = null;
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// track the global proxy.
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private ProxyProperties mGlobalProxy = null;
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private final Object mGlobalProxyLock = new Object();
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private SettingsObserver mSettingsObserver;
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private static class NetworkAttributes {
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/**
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* Class for holding settings read from resources.
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*/
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public String mName;
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public int mType;
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public int mRadio;
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public int mPriority;
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public NetworkInfo.State mLastState;
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public NetworkAttributes(String init) {
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String fragments[] = init.split(",");
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mName = fragments[0].toLowerCase();
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mType = Integer.parseInt(fragments[1]);
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mRadio = Integer.parseInt(fragments[2]);
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mPriority = Integer.parseInt(fragments[3]);
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mLastState = NetworkInfo.State.UNKNOWN;
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}
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public boolean isDefault() {
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return (mType == mRadio);
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}
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}
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NetworkAttributes[] mNetAttributes;
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int mNetworksDefined;
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private static class RadioAttributes {
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public int mSimultaneity;
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public int mType;
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public RadioAttributes(String init) {
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String fragments[] = init.split(",");
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mType = Integer.parseInt(fragments[0]);
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mSimultaneity = Integer.parseInt(fragments[1]);
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}
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}
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RadioAttributes[] mRadioAttributes;
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public static synchronized ConnectivityService getInstance(Context context) {
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if (sServiceInstance == null) {
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sServiceInstance = new ConnectivityService(context);
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}
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return sServiceInstance;
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}
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private ConnectivityService(Context context) {
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if (DBG) log("ConnectivityService starting up");
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HandlerThread handlerThread = new HandlerThread("ConnectivityServiceThread");
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handlerThread.start();
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mHandler = new MyHandler(handlerThread.getLooper());
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mBackgroundDataEnabled.set(Settings.Secure.getInt(context.getContentResolver(),
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Settings.Secure.BACKGROUND_DATA, 1) == 1);
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// setup our unique device name
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if (TextUtils.isEmpty(SystemProperties.get("net.hostname"))) {
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String id = Settings.Secure.getString(context.getContentResolver(),
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Settings.Secure.ANDROID_ID);
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if (id != null && id.length() > 0) {
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String name = new String("android_").concat(id);
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SystemProperties.set("net.hostname", name);
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}
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}
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// read our default dns server ip
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String dns = Settings.Secure.getString(context.getContentResolver(),
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Settings.Secure.DEFAULT_DNS_SERVER);
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if (dns == null || dns.length() == 0) {
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dns = context.getResources().getString(
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com.android.internal.R.string.config_default_dns_server);
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}
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try {
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mDefaultDns = NetworkUtils.numericToInetAddress(dns);
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} catch (IllegalArgumentException e) {
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loge("Error setting defaultDns using " + dns);
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}
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mContext = context;
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PowerManager powerManager = (PowerManager)mContext.getSystemService(Context.POWER_SERVICE);
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mNetTransitionWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG);
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mNetTransitionWakeLockTimeout = mContext.getResources().getInteger(
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com.android.internal.R.integer.config_networkTransitionTimeout);
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mNetTrackers = new NetworkStateTracker[
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ConnectivityManager.MAX_NETWORK_TYPE+1];
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mNetworkPreference = getPersistedNetworkPreference();
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mRadioAttributes = new RadioAttributes[ConnectivityManager.MAX_RADIO_TYPE+1];
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mNetAttributes = new NetworkAttributes[ConnectivityManager.MAX_NETWORK_TYPE+1];
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// Load device network attributes from resources
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String[] raStrings = context.getResources().getStringArray(
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com.android.internal.R.array.radioAttributes);
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for (String raString : raStrings) {
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RadioAttributes r = new RadioAttributes(raString);
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if (r.mType > ConnectivityManager.MAX_RADIO_TYPE) {
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loge("Error in radioAttributes - ignoring attempt to define type " + r.mType);
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continue;
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}
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if (mRadioAttributes[r.mType] != null) {
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loge("Error in radioAttributes - ignoring attempt to redefine type " +
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r.mType);
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continue;
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}
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mRadioAttributes[r.mType] = r;
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}
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String[] naStrings = context.getResources().getStringArray(
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com.android.internal.R.array.networkAttributes);
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for (String naString : naStrings) {
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try {
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NetworkAttributes n = new NetworkAttributes(naString);
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if (n.mType > ConnectivityManager.MAX_NETWORK_TYPE) {
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loge("Error in networkAttributes - ignoring attempt to define type " +
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n.mType);
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continue;
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}
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if (mNetAttributes[n.mType] != null) {
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loge("Error in networkAttributes - ignoring attempt to redefine type " +
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n.mType);
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continue;
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}
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if (mRadioAttributes[n.mRadio] == null) {
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loge("Error in networkAttributes - ignoring attempt to use undefined " +
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"radio " + n.mRadio + " in network type " + n.mType);
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continue;
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}
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mNetAttributes[n.mType] = n;
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mNetworksDefined++;
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} catch(Exception e) {
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// ignore it - leave the entry null
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}
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}
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// high priority first
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mPriorityList = new int[mNetworksDefined];
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{
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int insertionPoint = mNetworksDefined-1;
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int currentLowest = 0;
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int nextLowest = 0;
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while (insertionPoint > -1) {
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for (NetworkAttributes na : mNetAttributes) {
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if (na == null) continue;
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if (na.mPriority < currentLowest) continue;
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if (na.mPriority > currentLowest) {
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if (na.mPriority < nextLowest || nextLowest == 0) {
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nextLowest = na.mPriority;
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}
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continue;
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}
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mPriorityList[insertionPoint--] = na.mType;
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}
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currentLowest = nextLowest;
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nextLowest = 0;
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}
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}
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mNetRequestersPids = new ArrayList[ConnectivityManager.MAX_NETWORK_TYPE+1];
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for (int i : mPriorityList) {
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mNetRequestersPids[i] = new ArrayList();
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}
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mFeatureUsers = new ArrayList();
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mNumDnsEntries = 0;
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mTestMode = SystemProperties.get("cm.test.mode").equals("true")
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&& SystemProperties.get("ro.build.type").equals("eng");
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/*
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* Create the network state trackers for Wi-Fi and mobile
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* data. Maybe this could be done with a factory class,
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* but it's not clear that it's worth it, given that
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* the number of different network types is not going
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* to change very often.
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*/
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for (int netType : mPriorityList) {
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switch (mNetAttributes[netType].mRadio) {
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case ConnectivityManager.TYPE_WIFI:
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if (DBG) log("Starting Wifi Service.");
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WifiStateTracker wst = new WifiStateTracker();
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WifiService wifiService = new WifiService(context);
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ServiceManager.addService(Context.WIFI_SERVICE, wifiService);
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wifiService.checkAndStartWifi();
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mNetTrackers[ConnectivityManager.TYPE_WIFI] = wst;
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wst.startMonitoring(context, mHandler);
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//TODO: as part of WWS refactor, create only when needed
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mWifiWatchdogService = new WifiWatchdogService(context);
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break;
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case ConnectivityManager.TYPE_MOBILE:
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mNetTrackers[netType] = new MobileDataStateTracker(netType,
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mNetAttributes[netType].mName);
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mNetTrackers[netType].startMonitoring(context, mHandler);
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break;
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case ConnectivityManager.TYPE_DUMMY:
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mNetTrackers[netType] = new DummyDataStateTracker(netType,
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mNetAttributes[netType].mName);
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mNetTrackers[netType].startMonitoring(context, mHandler);
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break;
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case ConnectivityManager.TYPE_BLUETOOTH:
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mNetTrackers[netType] = BluetoothTetheringDataTracker.getInstance();
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mNetTrackers[netType].startMonitoring(context, mHandler);
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break;
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case ConnectivityManager.TYPE_ETHERNET:
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mNetTrackers[netType] = EthernetDataTracker.getInstance();
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mNetTrackers[netType].startMonitoring(context, mHandler);
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break;
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default:
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loge("Trying to create a DataStateTracker for an unknown radio type " +
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mNetAttributes[netType].mRadio);
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continue;
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}
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}
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mTethering = new Tethering(mContext, mHandler.getLooper());
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mTetheringConfigValid = (((mNetTrackers[ConnectivityManager.TYPE_MOBILE_DUN] != null) ||
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!mTethering.isDunRequired()) &&
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(mTethering.getTetherableUsbRegexs().length != 0 ||
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mTethering.getTetherableWifiRegexs().length != 0 ||
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mTethering.getTetherableBluetoothRegexs().length != 0) &&
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mTethering.getUpstreamIfaceRegexs().length != 0);
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if (DBG) {
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mInetLog = new ArrayList();
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}
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mSettingsObserver = new SettingsObserver(mHandler, EVENT_APPLY_GLOBAL_HTTP_PROXY);
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mSettingsObserver.observe(mContext);
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loadGlobalProxy();
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VpnManager.startVpnService(context);
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}
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/**
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* Sets the preferred network.
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* @param preference the new preference
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*/
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public void setNetworkPreference(int preference) {
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enforceChangePermission();
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mHandler.sendMessage(mHandler.obtainMessage(EVENT_SET_NETWORK_PREFERENCE, preference, 0));
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}
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public int getNetworkPreference() {
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enforceAccessPermission();
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int preference;
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synchronized(this) {
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preference = mNetworkPreference;
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}
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return preference;
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}
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private void handleSetNetworkPreference(int preference) {
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if (ConnectivityManager.isNetworkTypeValid(preference) &&
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mNetAttributes[preference] != null &&
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mNetAttributes[preference].isDefault()) {
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if (mNetworkPreference != preference) {
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final ContentResolver cr = mContext.getContentResolver();
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Settings.Secure.putInt(cr, Settings.Secure.NETWORK_PREFERENCE, preference);
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synchronized(this) {
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mNetworkPreference = preference;
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}
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enforcePreference();
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}
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}
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}
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private int getPersistedNetworkPreference() {
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final ContentResolver cr = mContext.getContentResolver();
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final int networkPrefSetting = Settings.Secure
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.getInt(cr, Settings.Secure.NETWORK_PREFERENCE, -1);
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if (networkPrefSetting != -1) {
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return networkPrefSetting;
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}
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return ConnectivityManager.DEFAULT_NETWORK_PREFERENCE;
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}
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/**
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* Make the state of network connectivity conform to the preference settings
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* In this method, we only tear down a non-preferred network. Establishing
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* a connection to the preferred network is taken care of when we handle
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* the disconnect event from the non-preferred network
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* (see {@link #handleDisconnect(NetworkInfo)}).
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*/
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private void enforcePreference() {
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if (mNetTrackers[mNetworkPreference].getNetworkInfo().isConnected())
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return;
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|
|
if (!mNetTrackers[mNetworkPreference].isAvailable())
|
|
return;
|
|
|
|
for (int t=0; t <= ConnectivityManager.MAX_RADIO_TYPE; t++) {
|
|
if (t != mNetworkPreference && mNetTrackers[t] != null &&
|
|
mNetTrackers[t].getNetworkInfo().isConnected()) {
|
|
if (DBG) {
|
|
log("tearing down " + mNetTrackers[t].getNetworkInfo() +
|
|
" in enforcePreference");
|
|
}
|
|
teardown(mNetTrackers[t]);
|
|
}
|
|
}
|
|
}
|
|
|
|
private boolean teardown(NetworkStateTracker netTracker) {
|
|
if (netTracker.teardown()) {
|
|
netTracker.setTeardownRequested(true);
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return NetworkInfo for the active (i.e., connected) network interface.
|
|
* It is assumed that at most one network is active at a time. If more
|
|
* than one is active, it is indeterminate which will be returned.
|
|
* @return the info for the active network, or {@code null} if none is
|
|
* active
|
|
*/
|
|
public NetworkInfo getActiveNetworkInfo() {
|
|
enforceAccessPermission();
|
|
for (int type=0; type <= ConnectivityManager.MAX_NETWORK_TYPE; type++) {
|
|
if (mNetAttributes[type] == null || !mNetAttributes[type].isDefault()) {
|
|
continue;
|
|
}
|
|
NetworkStateTracker t = mNetTrackers[type];
|
|
NetworkInfo info = t.getNetworkInfo();
|
|
if (info.isConnected()) {
|
|
if (DBG && type != mActiveDefaultNetwork) {
|
|
loge("connected default network is not mActiveDefaultNetwork!");
|
|
}
|
|
return info;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
public NetworkInfo getNetworkInfo(int networkType) {
|
|
enforceAccessPermission();
|
|
if (ConnectivityManager.isNetworkTypeValid(networkType)) {
|
|
NetworkStateTracker t = mNetTrackers[networkType];
|
|
if (t != null)
|
|
return t.getNetworkInfo();
|
|
}
|
|
return null;
|
|
}
|
|
|
|
public NetworkInfo[] getAllNetworkInfo() {
|
|
enforceAccessPermission();
|
|
NetworkInfo[] result = new NetworkInfo[mNetworksDefined];
|
|
int i = 0;
|
|
for (NetworkStateTracker t : mNetTrackers) {
|
|
if(t != null) result[i++] = t.getNetworkInfo();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Return LinkProperties for the active (i.e., connected) default
|
|
* network interface. It is assumed that at most one default network
|
|
* is active at a time. If more than one is active, it is indeterminate
|
|
* which will be returned.
|
|
* @return the ip properties for the active network, or {@code null} if
|
|
* none is active
|
|
*/
|
|
public LinkProperties getActiveLinkProperties() {
|
|
enforceAccessPermission();
|
|
for (int type=0; type <= ConnectivityManager.MAX_NETWORK_TYPE; type++) {
|
|
if (mNetAttributes[type] == null || !mNetAttributes[type].isDefault()) {
|
|
continue;
|
|
}
|
|
NetworkStateTracker t = mNetTrackers[type];
|
|
NetworkInfo info = t.getNetworkInfo();
|
|
if (info.isConnected()) {
|
|
return t.getLinkProperties();
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
public LinkProperties getLinkProperties(int networkType) {
|
|
enforceAccessPermission();
|
|
if (ConnectivityManager.isNetworkTypeValid(networkType)) {
|
|
NetworkStateTracker t = mNetTrackers[networkType];
|
|
if (t != null) return t.getLinkProperties();
|
|
}
|
|
return null;
|
|
}
|
|
|
|
public boolean setRadios(boolean turnOn) {
|
|
boolean result = true;
|
|
enforceChangePermission();
|
|
for (NetworkStateTracker t : mNetTrackers) {
|
|
if (t != null) result = t.setRadio(turnOn) && result;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
public boolean setRadio(int netType, boolean turnOn) {
|
|
enforceChangePermission();
|
|
if (!ConnectivityManager.isNetworkTypeValid(netType)) {
|
|
return false;
|
|
}
|
|
NetworkStateTracker tracker = mNetTrackers[netType];
|
|
return tracker != null && tracker.setRadio(turnOn);
|
|
}
|
|
|
|
/**
|
|
* Used to notice when the calling process dies so we can self-expire
|
|
*
|
|
* Also used to know if the process has cleaned up after itself when
|
|
* our auto-expire timer goes off. The timer has a link to an object.
|
|
*
|
|
*/
|
|
private class FeatureUser implements IBinder.DeathRecipient {
|
|
int mNetworkType;
|
|
String mFeature;
|
|
IBinder mBinder;
|
|
int mPid;
|
|
int mUid;
|
|
long mCreateTime;
|
|
|
|
FeatureUser(int type, String feature, IBinder binder) {
|
|
super();
|
|
mNetworkType = type;
|
|
mFeature = feature;
|
|
mBinder = binder;
|
|
mPid = getCallingPid();
|
|
mUid = getCallingUid();
|
|
mCreateTime = System.currentTimeMillis();
|
|
|
|
try {
|
|
mBinder.linkToDeath(this, 0);
|
|
} catch (RemoteException e) {
|
|
binderDied();
|
|
}
|
|
}
|
|
|
|
void unlinkDeathRecipient() {
|
|
mBinder.unlinkToDeath(this, 0);
|
|
}
|
|
|
|
public void binderDied() {
|
|
log("ConnectivityService FeatureUser binderDied(" +
|
|
mNetworkType + ", " + mFeature + ", " + mBinder + "), created " +
|
|
(System.currentTimeMillis() - mCreateTime) + " mSec ago");
|
|
stopUsingNetworkFeature(this, false);
|
|
}
|
|
|
|
public void expire() {
|
|
log("ConnectivityService FeatureUser expire(" +
|
|
mNetworkType + ", " + mFeature + ", " + mBinder +"), created " +
|
|
(System.currentTimeMillis() - mCreateTime) + " mSec ago");
|
|
stopUsingNetworkFeature(this, false);
|
|
}
|
|
|
|
public String toString() {
|
|
return "FeatureUser("+mNetworkType+","+mFeature+","+mPid+","+mUid+"), created " +
|
|
(System.currentTimeMillis() - mCreateTime) + " mSec ago";
|
|
}
|
|
}
|
|
|
|
// javadoc from interface
|
|
public int startUsingNetworkFeature(int networkType, String feature,
|
|
IBinder binder) {
|
|
if (DBG) {
|
|
log("startUsingNetworkFeature for net " + networkType + ": " + feature);
|
|
}
|
|
enforceChangePermission();
|
|
if (!ConnectivityManager.isNetworkTypeValid(networkType) ||
|
|
mNetAttributes[networkType] == null) {
|
|
return Phone.APN_REQUEST_FAILED;
|
|
}
|
|
|
|
FeatureUser f = new FeatureUser(networkType, feature, binder);
|
|
|
|
// TODO - move this into the MobileDataStateTracker
|
|
int usedNetworkType = networkType;
|
|
if(networkType == ConnectivityManager.TYPE_MOBILE) {
|
|
usedNetworkType = convertFeatureToNetworkType(feature);
|
|
if (usedNetworkType < 0) {
|
|
Slog.e(TAG, "Can't match any netTracker!");
|
|
usedNetworkType = networkType;
|
|
}
|
|
}
|
|
NetworkStateTracker network = mNetTrackers[usedNetworkType];
|
|
if (network != null) {
|
|
Integer currentPid = new Integer(getCallingPid());
|
|
if (usedNetworkType != networkType) {
|
|
NetworkStateTracker radio = mNetTrackers[networkType];
|
|
NetworkInfo ni = network.getNetworkInfo();
|
|
|
|
if (ni.isAvailable() == false) {
|
|
if (DBG) log("special network not available");
|
|
if (!TextUtils.equals(feature,Phone.FEATURE_ENABLE_DUN_ALWAYS)) {
|
|
return Phone.APN_TYPE_NOT_AVAILABLE;
|
|
} else {
|
|
// else make the attempt anyway - probably giving REQUEST_STARTED below
|
|
}
|
|
}
|
|
|
|
synchronized(this) {
|
|
mFeatureUsers.add(f);
|
|
if (!mNetRequestersPids[usedNetworkType].contains(currentPid)) {
|
|
// this gets used for per-pid dns when connected
|
|
mNetRequestersPids[usedNetworkType].add(currentPid);
|
|
}
|
|
}
|
|
mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_RESTORE_DEFAULT_NETWORK,
|
|
f), getRestoreDefaultNetworkDelay());
|
|
|
|
|
|
if ((ni.isConnectedOrConnecting() == true) &&
|
|
!network.isTeardownRequested()) {
|
|
if (ni.isConnected() == true) {
|
|
// add the pid-specific dns
|
|
handleDnsConfigurationChange(networkType);
|
|
if (DBG) log("special network already active");
|
|
return Phone.APN_ALREADY_ACTIVE;
|
|
}
|
|
if (DBG) log("special network already connecting");
|
|
return Phone.APN_REQUEST_STARTED;
|
|
}
|
|
|
|
// check if the radio in play can make another contact
|
|
// assume if cannot for now
|
|
|
|
if (DBG) log("reconnecting to special network");
|
|
network.reconnect();
|
|
return Phone.APN_REQUEST_STARTED;
|
|
} else {
|
|
// need to remember this unsupported request so we respond appropriately on stop
|
|
synchronized(this) {
|
|
mFeatureUsers.add(f);
|
|
if (!mNetRequestersPids[usedNetworkType].contains(currentPid)) {
|
|
// this gets used for per-pid dns when connected
|
|
mNetRequestersPids[usedNetworkType].add(currentPid);
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
}
|
|
return Phone.APN_TYPE_NOT_AVAILABLE;
|
|
}
|
|
|
|
// javadoc from interface
|
|
public int stopUsingNetworkFeature(int networkType, String feature) {
|
|
enforceChangePermission();
|
|
|
|
int pid = getCallingPid();
|
|
int uid = getCallingUid();
|
|
|
|
FeatureUser u = null;
|
|
boolean found = false;
|
|
|
|
synchronized(this) {
|
|
for (int i = 0; i < mFeatureUsers.size() ; i++) {
|
|
u = (FeatureUser)mFeatureUsers.get(i);
|
|
if (uid == u.mUid && pid == u.mPid &&
|
|
networkType == u.mNetworkType &&
|
|
TextUtils.equals(feature, u.mFeature)) {
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (found && u != null) {
|
|
// stop regardless of how many other time this proc had called start
|
|
return stopUsingNetworkFeature(u, true);
|
|
} else {
|
|
// none found!
|
|
if (DBG) log("ignoring stopUsingNetworkFeature - not a live request");
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
private int stopUsingNetworkFeature(FeatureUser u, boolean ignoreDups) {
|
|
int networkType = u.mNetworkType;
|
|
String feature = u.mFeature;
|
|
int pid = u.mPid;
|
|
int uid = u.mUid;
|
|
|
|
NetworkStateTracker tracker = null;
|
|
boolean callTeardown = false; // used to carry our decision outside of sync block
|
|
|
|
if (DBG) {
|
|
log("stopUsingNetworkFeature for net " + networkType +
|
|
": " + feature);
|
|
}
|
|
|
|
if (!ConnectivityManager.isNetworkTypeValid(networkType)) {
|
|
return -1;
|
|
}
|
|
|
|
// need to link the mFeatureUsers list with the mNetRequestersPids state in this
|
|
// sync block
|
|
synchronized(this) {
|
|
// check if this process still has an outstanding start request
|
|
if (!mFeatureUsers.contains(u)) {
|
|
if (DBG) log("ignoring - this process has no outstanding requests");
|
|
return 1;
|
|
}
|
|
u.unlinkDeathRecipient();
|
|
mFeatureUsers.remove(mFeatureUsers.indexOf(u));
|
|
// If we care about duplicate requests, check for that here.
|
|
//
|
|
// This is done to support the extension of a request - the app
|
|
// can request we start the network feature again and renew the
|
|
// auto-shutoff delay. Normal "stop" calls from the app though
|
|
// do not pay attention to duplicate requests - in effect the
|
|
// API does not refcount and a single stop will counter multiple starts.
|
|
if (ignoreDups == false) {
|
|
for (int i = 0; i < mFeatureUsers.size() ; i++) {
|
|
FeatureUser x = (FeatureUser)mFeatureUsers.get(i);
|
|
if (x.mUid == u.mUid && x.mPid == u.mPid &&
|
|
x.mNetworkType == u.mNetworkType &&
|
|
TextUtils.equals(x.mFeature, u.mFeature)) {
|
|
if (DBG) log("ignoring stopUsingNetworkFeature as dup is found");
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
// TODO - move to MobileDataStateTracker
|
|
int usedNetworkType = networkType;
|
|
if (networkType == ConnectivityManager.TYPE_MOBILE) {
|
|
usedNetworkType = convertFeatureToNetworkType(feature);
|
|
if (usedNetworkType < 0) {
|
|
usedNetworkType = networkType;
|
|
}
|
|
}
|
|
tracker = mNetTrackers[usedNetworkType];
|
|
if (tracker == null) {
|
|
if (DBG) log("ignoring - no known tracker for net type " + usedNetworkType);
|
|
return -1;
|
|
}
|
|
if (usedNetworkType != networkType) {
|
|
Integer currentPid = new Integer(pid);
|
|
mNetRequestersPids[usedNetworkType].remove(currentPid);
|
|
reassessPidDns(pid, true);
|
|
if (mNetRequestersPids[usedNetworkType].size() != 0) {
|
|
if (DBG) log("not tearing down special network - " +
|
|
"others still using it");
|
|
return 1;
|
|
}
|
|
callTeardown = true;
|
|
} else {
|
|
if (DBG) log("not a known feature - dropping");
|
|
}
|
|
}
|
|
if (DBG) log("Doing network teardown");
|
|
if (callTeardown) {
|
|
tracker.teardown();
|
|
return 1;
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @deprecated use requestRouteToHostAddress instead
|
|
*
|
|
* Ensure that a network route exists to deliver traffic to the specified
|
|
* host via the specified network interface.
|
|
* @param networkType the type of the network over which traffic to the
|
|
* specified host is to be routed
|
|
* @param hostAddress the IP address of the host to which the route is
|
|
* desired
|
|
* @return {@code true} on success, {@code false} on failure
|
|
*/
|
|
public boolean requestRouteToHost(int networkType, int hostAddress) {
|
|
InetAddress inetAddress = NetworkUtils.intToInetAddress(hostAddress);
|
|
|
|
if (inetAddress == null) {
|
|
return false;
|
|
}
|
|
|
|
return requestRouteToHostAddress(networkType, inetAddress.getAddress());
|
|
}
|
|
|
|
/**
|
|
* Ensure that a network route exists to deliver traffic to the specified
|
|
* host via the specified network interface.
|
|
* @param networkType the type of the network over which traffic to the
|
|
* specified host is to be routed
|
|
* @param hostAddress the IP address of the host to which the route is
|
|
* desired
|
|
* @return {@code true} on success, {@code false} on failure
|
|
*/
|
|
public boolean requestRouteToHostAddress(int networkType, byte[] hostAddress) {
|
|
enforceChangePermission();
|
|
if (!ConnectivityManager.isNetworkTypeValid(networkType)) {
|
|
return false;
|
|
}
|
|
NetworkStateTracker tracker = mNetTrackers[networkType];
|
|
|
|
if (tracker == null || !tracker.getNetworkInfo().isConnected() ||
|
|
tracker.isTeardownRequested()) {
|
|
if (DBG) {
|
|
log("requestRouteToHostAddress on down network " +
|
|
"(" + networkType + ") - dropped");
|
|
}
|
|
return false;
|
|
}
|
|
try {
|
|
InetAddress addr = InetAddress.getByAddress(hostAddress);
|
|
return addHostRoute(tracker, addr);
|
|
} catch (UnknownHostException e) {}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Ensure that a network route exists to deliver traffic to the specified
|
|
* host via the mobile data network.
|
|
* @param hostAddress the IP address of the host to which the route is desired,
|
|
* in network byte order.
|
|
* TODO - deprecate
|
|
* @return {@code true} on success, {@code false} on failure
|
|
*/
|
|
private boolean addHostRoute(NetworkStateTracker nt, InetAddress hostAddress) {
|
|
if (nt.getNetworkInfo().getType() == ConnectivityManager.TYPE_WIFI) {
|
|
return false;
|
|
}
|
|
|
|
LinkProperties p = nt.getLinkProperties();
|
|
if (p == null) return false;
|
|
String interfaceName = p.getInterfaceName();
|
|
|
|
if (DBG) {
|
|
log("Requested host route to " + hostAddress + "(" + interfaceName + ")");
|
|
}
|
|
if (interfaceName != null) {
|
|
return NetworkUtils.addHostRoute(interfaceName, hostAddress, null);
|
|
} else {
|
|
if (DBG) loge("addHostRoute failed due to null interface name");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @see ConnectivityManager#getBackgroundDataSetting()
|
|
*/
|
|
public boolean getBackgroundDataSetting() {
|
|
return mBackgroundDataEnabled.get();
|
|
}
|
|
|
|
/**
|
|
* @see ConnectivityManager#setBackgroundDataSetting(boolean)
|
|
*/
|
|
public void setBackgroundDataSetting(boolean allowBackgroundDataUsage) {
|
|
mContext.enforceCallingOrSelfPermission(
|
|
android.Manifest.permission.CHANGE_BACKGROUND_DATA_SETTING,
|
|
"ConnectivityService");
|
|
|
|
mBackgroundDataEnabled.set(allowBackgroundDataUsage);
|
|
|
|
mHandler.sendMessage(mHandler.obtainMessage(EVENT_SET_BACKGROUND_DATA,
|
|
(allowBackgroundDataUsage ? ENABLED : DISABLED), 0));
|
|
}
|
|
|
|
private void handleSetBackgroundData(boolean enabled) {
|
|
Settings.Secure.putInt(mContext.getContentResolver(),
|
|
Settings.Secure.BACKGROUND_DATA, enabled ? 1 : 0);
|
|
Intent broadcast = new Intent(
|
|
ConnectivityManager.ACTION_BACKGROUND_DATA_SETTING_CHANGED);
|
|
mContext.sendBroadcast(broadcast);
|
|
}
|
|
|
|
/**
|
|
* @see ConnectivityManager#getMobileDataEnabled()
|
|
*/
|
|
public boolean getMobileDataEnabled() {
|
|
// TODO: This detail should probably be in DataConnectionTracker's
|
|
// which is where we store the value and maybe make this
|
|
// asynchronous.
|
|
enforceAccessPermission();
|
|
boolean retVal = Settings.Secure.getInt(mContext.getContentResolver(),
|
|
Settings.Secure.MOBILE_DATA, 1) == 1;
|
|
if (DBG) log("getMobileDataEnabled returning " + retVal);
|
|
return retVal;
|
|
}
|
|
|
|
/**
|
|
* @see ConnectivityManager#setMobileDataEnabled(boolean)
|
|
*/
|
|
public void setMobileDataEnabled(boolean enabled) {
|
|
enforceChangePermission();
|
|
if (DBG) log("setMobileDataEnabled(" + enabled + ")");
|
|
|
|
mHandler.sendMessage(mHandler.obtainMessage(EVENT_SET_MOBILE_DATA,
|
|
(enabled ? ENABLED : DISABLED), 0));
|
|
}
|
|
|
|
private void handleSetMobileData(boolean enabled) {
|
|
if (mNetTrackers[ConnectivityManager.TYPE_MOBILE] != null) {
|
|
if (DBG) {
|
|
Slog.d(TAG, mNetTrackers[ConnectivityManager.TYPE_MOBILE].toString() + enabled);
|
|
}
|
|
mNetTrackers[ConnectivityManager.TYPE_MOBILE].setDataEnable(enabled);
|
|
}
|
|
}
|
|
|
|
private void enforceAccessPermission() {
|
|
mContext.enforceCallingOrSelfPermission(
|
|
android.Manifest.permission.ACCESS_NETWORK_STATE,
|
|
"ConnectivityService");
|
|
}
|
|
|
|
private void enforceChangePermission() {
|
|
mContext.enforceCallingOrSelfPermission(
|
|
android.Manifest.permission.CHANGE_NETWORK_STATE,
|
|
"ConnectivityService");
|
|
}
|
|
|
|
// TODO Make this a special check when it goes public
|
|
private void enforceTetherChangePermission() {
|
|
mContext.enforceCallingOrSelfPermission(
|
|
android.Manifest.permission.CHANGE_NETWORK_STATE,
|
|
"ConnectivityService");
|
|
}
|
|
|
|
private void enforceTetherAccessPermission() {
|
|
mContext.enforceCallingOrSelfPermission(
|
|
android.Manifest.permission.ACCESS_NETWORK_STATE,
|
|
"ConnectivityService");
|
|
}
|
|
|
|
private void enforceConnectivityInternalPermission() {
|
|
mContext.enforceCallingOrSelfPermission(
|
|
android.Manifest.permission.CONNECTIVITY_INTERNAL,
|
|
"ConnectivityService");
|
|
}
|
|
|
|
/**
|
|
* Handle a {@code DISCONNECTED} event. If this pertains to the non-active
|
|
* network, we ignore it. If it is for the active network, we send out a
|
|
* broadcast. But first, we check whether it might be possible to connect
|
|
* to a different network.
|
|
* @param info the {@code NetworkInfo} for the network
|
|
*/
|
|
private void handleDisconnect(NetworkInfo info) {
|
|
|
|
int prevNetType = info.getType();
|
|
|
|
mNetTrackers[prevNetType].setTeardownRequested(false);
|
|
/*
|
|
* If the disconnected network is not the active one, then don't report
|
|
* this as a loss of connectivity. What probably happened is that we're
|
|
* getting the disconnect for a network that we explicitly disabled
|
|
* in accordance with network preference policies.
|
|
*/
|
|
if (!mNetAttributes[prevNetType].isDefault()) {
|
|
List pids = mNetRequestersPids[prevNetType];
|
|
for (int i = 0; i<pids.size(); i++) {
|
|
Integer pid = (Integer)pids.get(i);
|
|
// will remove them because the net's no longer connected
|
|
// need to do this now as only now do we know the pids and
|
|
// can properly null things that are no longer referenced.
|
|
reassessPidDns(pid.intValue(), false);
|
|
}
|
|
}
|
|
|
|
Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION);
|
|
intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info);
|
|
if (info.isFailover()) {
|
|
intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true);
|
|
info.setFailover(false);
|
|
}
|
|
if (info.getReason() != null) {
|
|
intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason());
|
|
}
|
|
if (info.getExtraInfo() != null) {
|
|
intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO,
|
|
info.getExtraInfo());
|
|
}
|
|
|
|
if (mNetAttributes[prevNetType].isDefault()) {
|
|
tryFailover(prevNetType);
|
|
if (mActiveDefaultNetwork != -1) {
|
|
NetworkInfo switchTo = mNetTrackers[mActiveDefaultNetwork].getNetworkInfo();
|
|
intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, switchTo);
|
|
} else {
|
|
mDefaultInetConditionPublished = 0; // we're not connected anymore
|
|
intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true);
|
|
}
|
|
}
|
|
intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished);
|
|
// do this before we broadcast the change
|
|
handleConnectivityChange(prevNetType);
|
|
|
|
sendStickyBroadcast(intent);
|
|
/*
|
|
* If the failover network is already connected, then immediately send
|
|
* out a followup broadcast indicating successful failover
|
|
*/
|
|
if (mActiveDefaultNetwork != -1) {
|
|
sendConnectedBroadcast(mNetTrackers[mActiveDefaultNetwork].getNetworkInfo());
|
|
}
|
|
}
|
|
|
|
private void tryFailover(int prevNetType) {
|
|
/*
|
|
* If this is a default network, check if other defaults are available.
|
|
* Try to reconnect on all available and let them hash it out when
|
|
* more than one connects.
|
|
*/
|
|
if (mNetAttributes[prevNetType].isDefault()) {
|
|
if (mActiveDefaultNetwork == prevNetType) {
|
|
mActiveDefaultNetwork = -1;
|
|
}
|
|
|
|
// don't signal a reconnect for anything lower or equal priority than our
|
|
// current connected default
|
|
// TODO - don't filter by priority now - nice optimization but risky
|
|
// int currentPriority = -1;
|
|
// if (mActiveDefaultNetwork != -1) {
|
|
// currentPriority = mNetAttributes[mActiveDefaultNetwork].mPriority;
|
|
// }
|
|
for (int checkType=0; checkType <= ConnectivityManager.MAX_NETWORK_TYPE; checkType++) {
|
|
if (checkType == prevNetType) continue;
|
|
if (mNetAttributes[checkType] == null) continue;
|
|
if (!mNetAttributes[checkType].isDefault()) continue;
|
|
|
|
// Enabling the isAvailable() optimization caused mobile to not get
|
|
// selected if it was in the middle of error handling. Specifically
|
|
// a moble connection that took 30 seconds to complete the DEACTIVATE_DATA_CALL
|
|
// would not be available and we wouldn't get connected to anything.
|
|
// So removing the isAvailable() optimization below for now. TODO: This
|
|
// optimization should work and we need to investigate why it doesn't work.
|
|
// This could be related to how DEACTIVATE_DATA_CALL is reporting its
|
|
// complete before it is really complete.
|
|
// if (!mNetTrackers[checkType].isAvailable()) continue;
|
|
|
|
// if (currentPriority >= mNetAttributes[checkType].mPriority) continue;
|
|
|
|
NetworkStateTracker checkTracker = mNetTrackers[checkType];
|
|
NetworkInfo checkInfo = checkTracker.getNetworkInfo();
|
|
if (!checkInfo.isConnectedOrConnecting() || checkTracker.isTeardownRequested()) {
|
|
checkInfo.setFailover(true);
|
|
checkTracker.reconnect();
|
|
}
|
|
if (DBG) log("Attempting to switch to " + checkInfo.getTypeName());
|
|
}
|
|
}
|
|
}
|
|
|
|
private void sendConnectedBroadcast(NetworkInfo info) {
|
|
sendGeneralBroadcast(info, ConnectivityManager.CONNECTIVITY_ACTION);
|
|
}
|
|
|
|
private void sendInetConditionBroadcast(NetworkInfo info) {
|
|
sendGeneralBroadcast(info, ConnectivityManager.INET_CONDITION_ACTION);
|
|
}
|
|
|
|
private void sendGeneralBroadcast(NetworkInfo info, String bcastType) {
|
|
Intent intent = new Intent(bcastType);
|
|
intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info);
|
|
if (info.isFailover()) {
|
|
intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true);
|
|
info.setFailover(false);
|
|
}
|
|
if (info.getReason() != null) {
|
|
intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason());
|
|
}
|
|
if (info.getExtraInfo() != null) {
|
|
intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO,
|
|
info.getExtraInfo());
|
|
}
|
|
intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished);
|
|
sendStickyBroadcast(intent);
|
|
}
|
|
|
|
/**
|
|
* Called when an attempt to fail over to another network has failed.
|
|
* @param info the {@link NetworkInfo} for the failed network
|
|
*/
|
|
private void handleConnectionFailure(NetworkInfo info) {
|
|
mNetTrackers[info.getType()].setTeardownRequested(false);
|
|
|
|
String reason = info.getReason();
|
|
String extraInfo = info.getExtraInfo();
|
|
|
|
String reasonText;
|
|
if (reason == null) {
|
|
reasonText = ".";
|
|
} else {
|
|
reasonText = " (" + reason + ").";
|
|
}
|
|
loge("Attempt to connect to " + info.getTypeName() + " failed" + reasonText);
|
|
|
|
Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION);
|
|
intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info);
|
|
if (getActiveNetworkInfo() == null) {
|
|
intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true);
|
|
}
|
|
if (reason != null) {
|
|
intent.putExtra(ConnectivityManager.EXTRA_REASON, reason);
|
|
}
|
|
if (extraInfo != null) {
|
|
intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, extraInfo);
|
|
}
|
|
if (info.isFailover()) {
|
|
intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true);
|
|
info.setFailover(false);
|
|
}
|
|
|
|
if (mNetAttributes[info.getType()].isDefault()) {
|
|
tryFailover(info.getType());
|
|
if (mActiveDefaultNetwork != -1) {
|
|
NetworkInfo switchTo = mNetTrackers[mActiveDefaultNetwork].getNetworkInfo();
|
|
intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, switchTo);
|
|
} else {
|
|
mDefaultInetConditionPublished = 0;
|
|
intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true);
|
|
}
|
|
}
|
|
|
|
intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished);
|
|
sendStickyBroadcast(intent);
|
|
/*
|
|
* If the failover network is already connected, then immediately send
|
|
* out a followup broadcast indicating successful failover
|
|
*/
|
|
if (mActiveDefaultNetwork != -1) {
|
|
sendConnectedBroadcast(mNetTrackers[mActiveDefaultNetwork].getNetworkInfo());
|
|
}
|
|
}
|
|
|
|
private void sendStickyBroadcast(Intent intent) {
|
|
synchronized(this) {
|
|
if (!mSystemReady) {
|
|
mInitialBroadcast = new Intent(intent);
|
|
}
|
|
intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
|
|
mContext.sendStickyBroadcast(intent);
|
|
}
|
|
}
|
|
|
|
void systemReady() {
|
|
synchronized(this) {
|
|
mSystemReady = true;
|
|
if (mInitialBroadcast != null) {
|
|
mContext.sendStickyBroadcast(mInitialBroadcast);
|
|
mInitialBroadcast = null;
|
|
}
|
|
}
|
|
// load the global proxy at startup
|
|
mHandler.sendMessage(mHandler.obtainMessage(EVENT_APPLY_GLOBAL_HTTP_PROXY));
|
|
}
|
|
|
|
private void handleConnect(NetworkInfo info) {
|
|
int type = info.getType();
|
|
|
|
// snapshot isFailover, because sendConnectedBroadcast() resets it
|
|
boolean isFailover = info.isFailover();
|
|
NetworkStateTracker thisNet = mNetTrackers[type];
|
|
|
|
// if this is a default net and other default is running
|
|
// kill the one not preferred
|
|
if (mNetAttributes[type].isDefault()) {
|
|
if (mActiveDefaultNetwork != -1 && mActiveDefaultNetwork != type) {
|
|
if ((type != mNetworkPreference &&
|
|
mNetAttributes[mActiveDefaultNetwork].mPriority >
|
|
mNetAttributes[type].mPriority) ||
|
|
mNetworkPreference == mActiveDefaultNetwork) {
|
|
// don't accept this one
|
|
if (DBG) {
|
|
log("Not broadcasting CONNECT_ACTION " +
|
|
"to torn down network " + info.getTypeName());
|
|
}
|
|
teardown(thisNet);
|
|
return;
|
|
} else {
|
|
// tear down the other
|
|
NetworkStateTracker otherNet =
|
|
mNetTrackers[mActiveDefaultNetwork];
|
|
if (DBG) {
|
|
log("Policy requires " + otherNet.getNetworkInfo().getTypeName() +
|
|
" teardown");
|
|
}
|
|
if (!teardown(otherNet)) {
|
|
loge("Network declined teardown request");
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
synchronized (ConnectivityService.this) {
|
|
// have a new default network, release the transition wakelock in a second
|
|
// if it's held. The second pause is to allow apps to reconnect over the
|
|
// new network
|
|
if (mNetTransitionWakeLock.isHeld()) {
|
|
mHandler.sendMessageDelayed(mHandler.obtainMessage(
|
|
EVENT_CLEAR_NET_TRANSITION_WAKELOCK,
|
|
mNetTransitionWakeLockSerialNumber, 0),
|
|
1000);
|
|
}
|
|
}
|
|
mActiveDefaultNetwork = type;
|
|
// this will cause us to come up initially as unconnected and switching
|
|
// to connected after our normal pause unless somebody reports us as reall
|
|
// disconnected
|
|
mDefaultInetConditionPublished = 0;
|
|
mDefaultConnectionSequence++;
|
|
mInetConditionChangeInFlight = false;
|
|
// Don't do this - if we never sign in stay, grey
|
|
//reportNetworkCondition(mActiveDefaultNetwork, 100);
|
|
}
|
|
thisNet.setTeardownRequested(false);
|
|
updateNetworkSettings(thisNet);
|
|
handleConnectivityChange(type);
|
|
sendConnectedBroadcast(info);
|
|
}
|
|
|
|
/**
|
|
* After a change in the connectivity state of a network. We're mainly
|
|
* concerned with making sure that the list of DNS servers is set up
|
|
* according to which networks are connected, and ensuring that the
|
|
* right routing table entries exist.
|
|
*/
|
|
private void handleConnectivityChange(int netType) {
|
|
/*
|
|
* If a non-default network is enabled, add the host routes that
|
|
* will allow it's DNS servers to be accessed.
|
|
*/
|
|
handleDnsConfigurationChange(netType);
|
|
|
|
if (mNetTrackers[netType].getNetworkInfo().isConnected()) {
|
|
if (mNetAttributes[netType].isDefault()) {
|
|
handleApplyDefaultProxy(netType);
|
|
addDefaultRoute(mNetTrackers[netType]);
|
|
} else {
|
|
addPrivateDnsRoutes(mNetTrackers[netType]);
|
|
}
|
|
} else {
|
|
if (mNetAttributes[netType].isDefault()) {
|
|
removeDefaultRoute(mNetTrackers[netType]);
|
|
} else {
|
|
removePrivateDnsRoutes(mNetTrackers[netType]);
|
|
}
|
|
}
|
|
}
|
|
|
|
private void addPrivateDnsRoutes(NetworkStateTracker nt) {
|
|
boolean privateDnsRouteSet = nt.isPrivateDnsRouteSet();
|
|
LinkProperties p = nt.getLinkProperties();
|
|
if (p == null) return;
|
|
String interfaceName = p.getInterfaceName();
|
|
|
|
if (DBG) {
|
|
log("addPrivateDnsRoutes for " + nt +
|
|
"(" + interfaceName + ") - mPrivateDnsRouteSet = " + privateDnsRouteSet);
|
|
}
|
|
if (interfaceName != null && !privateDnsRouteSet) {
|
|
Collection<InetAddress> dnsList = p.getDnses();
|
|
for (InetAddress dns : dnsList) {
|
|
if (DBG) log(" adding " + dns);
|
|
NetworkUtils.addHostRoute(interfaceName, dns, null);
|
|
}
|
|
nt.privateDnsRouteSet(true);
|
|
}
|
|
}
|
|
|
|
private void removePrivateDnsRoutes(NetworkStateTracker nt) {
|
|
// TODO - we should do this explicitly but the NetUtils api doesnt
|
|
// support this yet - must remove all. No worse than before
|
|
LinkProperties p = nt.getLinkProperties();
|
|
if (p == null) return;
|
|
String interfaceName = p.getInterfaceName();
|
|
boolean privateDnsRouteSet = nt.isPrivateDnsRouteSet();
|
|
if (interfaceName != null && privateDnsRouteSet) {
|
|
if (DBG) {
|
|
log("removePrivateDnsRoutes for " + nt.getNetworkInfo().getTypeName() +
|
|
" (" + interfaceName + ")");
|
|
}
|
|
NetworkUtils.removeHostRoutes(interfaceName);
|
|
nt.privateDnsRouteSet(false);
|
|
}
|
|
}
|
|
|
|
|
|
private void addDefaultRoute(NetworkStateTracker nt) {
|
|
LinkProperties p = nt.getLinkProperties();
|
|
if (p == null) return;
|
|
String interfaceName = p.getInterfaceName();
|
|
if (TextUtils.isEmpty(interfaceName)) return;
|
|
for (InetAddress gateway : p.getGateways()) {
|
|
|
|
if (!NetworkUtils.addDefaultRoute(interfaceName, gateway) && DBG) {
|
|
NetworkInfo networkInfo = nt.getNetworkInfo();
|
|
log("addDefaultRoute for " + networkInfo.getTypeName() +
|
|
" (" + interfaceName + "), GatewayAddr=" + gateway.getHostAddress());
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
public void removeDefaultRoute(NetworkStateTracker nt) {
|
|
LinkProperties p = nt.getLinkProperties();
|
|
if (p == null) return;
|
|
String interfaceName = p.getInterfaceName();
|
|
|
|
if (interfaceName != null) {
|
|
if ((NetworkUtils.removeDefaultRoute(interfaceName) >= 0) && DBG) {
|
|
NetworkInfo networkInfo = nt.getNetworkInfo();
|
|
log("removeDefaultRoute for " + networkInfo.getTypeName() + " (" +
|
|
interfaceName + ")");
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Reads the network specific TCP buffer sizes from SystemProperties
|
|
* net.tcp.buffersize.[default|wifi|umts|edge|gprs] and set them for system
|
|
* wide use
|
|
*/
|
|
public void updateNetworkSettings(NetworkStateTracker nt) {
|
|
String key = nt.getTcpBufferSizesPropName();
|
|
String bufferSizes = SystemProperties.get(key);
|
|
|
|
if (bufferSizes.length() == 0) {
|
|
loge(key + " not found in system properties. Using defaults");
|
|
|
|
// Setting to default values so we won't be stuck to previous values
|
|
key = "net.tcp.buffersize.default";
|
|
bufferSizes = SystemProperties.get(key);
|
|
}
|
|
|
|
// Set values in kernel
|
|
if (bufferSizes.length() != 0) {
|
|
if (DBG) {
|
|
log("Setting TCP values: [" + bufferSizes
|
|
+ "] which comes from [" + key + "]");
|
|
}
|
|
setBufferSize(bufferSizes);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Writes TCP buffer sizes to /sys/kernel/ipv4/tcp_[r/w]mem_[min/def/max]
|
|
* which maps to /proc/sys/net/ipv4/tcp_rmem and tcpwmem
|
|
*
|
|
* @param bufferSizes in the format of "readMin, readInitial, readMax,
|
|
* writeMin, writeInitial, writeMax"
|
|
*/
|
|
private void setBufferSize(String bufferSizes) {
|
|
try {
|
|
String[] values = bufferSizes.split(",");
|
|
|
|
if (values.length == 6) {
|
|
final String prefix = "/sys/kernel/ipv4/tcp_";
|
|
stringToFile(prefix + "rmem_min", values[0]);
|
|
stringToFile(prefix + "rmem_def", values[1]);
|
|
stringToFile(prefix + "rmem_max", values[2]);
|
|
stringToFile(prefix + "wmem_min", values[3]);
|
|
stringToFile(prefix + "wmem_def", values[4]);
|
|
stringToFile(prefix + "wmem_max", values[5]);
|
|
} else {
|
|
loge("Invalid buffersize string: " + bufferSizes);
|
|
}
|
|
} catch (IOException e) {
|
|
loge("Can't set tcp buffer sizes:" + e);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Writes string to file. Basically same as "echo -n $string > $filename"
|
|
*
|
|
* @param filename
|
|
* @param string
|
|
* @throws IOException
|
|
*/
|
|
private void stringToFile(String filename, String string) throws IOException {
|
|
FileWriter out = new FileWriter(filename);
|
|
try {
|
|
out.write(string);
|
|
} finally {
|
|
out.close();
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Adjust the per-process dns entries (net.dns<x>.<pid>) based
|
|
* on the highest priority active net which this process requested.
|
|
* If there aren't any, clear it out
|
|
*/
|
|
private void reassessPidDns(int myPid, boolean doBump)
|
|
{
|
|
if (DBG) log("reassessPidDns for pid " + myPid);
|
|
for(int i : mPriorityList) {
|
|
if (mNetAttributes[i].isDefault()) {
|
|
continue;
|
|
}
|
|
NetworkStateTracker nt = mNetTrackers[i];
|
|
if (nt.getNetworkInfo().isConnected() &&
|
|
!nt.isTeardownRequested()) {
|
|
LinkProperties p = nt.getLinkProperties();
|
|
if (p == null) continue;
|
|
List pids = mNetRequestersPids[i];
|
|
for (int j=0; j<pids.size(); j++) {
|
|
Integer pid = (Integer)pids.get(j);
|
|
if (pid.intValue() == myPid) {
|
|
Collection<InetAddress> dnses = p.getDnses();
|
|
writePidDns(dnses, myPid);
|
|
if (doBump) {
|
|
bumpDns();
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// nothing found - delete
|
|
for (int i = 1; ; i++) {
|
|
String prop = "net.dns" + i + "." + myPid;
|
|
if (SystemProperties.get(prop).length() == 0) {
|
|
if (doBump) {
|
|
bumpDns();
|
|
}
|
|
return;
|
|
}
|
|
SystemProperties.set(prop, "");
|
|
}
|
|
}
|
|
|
|
// return true if results in a change
|
|
private boolean writePidDns(Collection <InetAddress> dnses, int pid) {
|
|
int j = 1;
|
|
boolean changed = false;
|
|
for (InetAddress dns : dnses) {
|
|
String dnsString = dns.getHostAddress();
|
|
if (changed || !dnsString.equals(SystemProperties.get("net.dns" + j + "." + pid))) {
|
|
changed = true;
|
|
SystemProperties.set("net.dns" + j++ + "." + pid, dns.getHostAddress());
|
|
}
|
|
}
|
|
return changed;
|
|
}
|
|
|
|
private void bumpDns() {
|
|
/*
|
|
* Bump the property that tells the name resolver library to reread
|
|
* the DNS server list from the properties.
|
|
*/
|
|
String propVal = SystemProperties.get("net.dnschange");
|
|
int n = 0;
|
|
if (propVal.length() != 0) {
|
|
try {
|
|
n = Integer.parseInt(propVal);
|
|
} catch (NumberFormatException e) {}
|
|
}
|
|
SystemProperties.set("net.dnschange", "" + (n+1));
|
|
/*
|
|
* Tell the VMs to toss their DNS caches
|
|
*/
|
|
Intent intent = new Intent(Intent.ACTION_CLEAR_DNS_CACHE);
|
|
intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING);
|
|
/*
|
|
* Connectivity events can happen before boot has completed ...
|
|
*/
|
|
intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
|
|
mContext.sendBroadcast(intent);
|
|
}
|
|
|
|
private void handleDnsConfigurationChange(int netType) {
|
|
// add default net's dns entries
|
|
NetworkStateTracker nt = mNetTrackers[netType];
|
|
if (nt != null && nt.getNetworkInfo().isConnected() && !nt.isTeardownRequested()) {
|
|
LinkProperties p = nt.getLinkProperties();
|
|
if (p == null) return;
|
|
Collection<InetAddress> dnses = p.getDnses();
|
|
boolean changed = false;
|
|
if (mNetAttributes[netType].isDefault()) {
|
|
int j = 1;
|
|
if (dnses.size() == 0 && mDefaultDns != null) {
|
|
String dnsString = mDefaultDns.getHostAddress();
|
|
if (!dnsString.equals(SystemProperties.get("net.dns1"))) {
|
|
if (DBG) {
|
|
log("no dns provided - using " + dnsString);
|
|
}
|
|
changed = true;
|
|
SystemProperties.set("net.dns1", dnsString);
|
|
}
|
|
j++;
|
|
} else {
|
|
for (InetAddress dns : dnses) {
|
|
String dnsString = dns.getHostAddress();
|
|
if (!changed && dnsString.equals(SystemProperties.get("net.dns" + j))) {
|
|
j++;
|
|
continue;
|
|
}
|
|
if (DBG) {
|
|
log("adding dns " + dns + " for " +
|
|
nt.getNetworkInfo().getTypeName());
|
|
}
|
|
changed = true;
|
|
SystemProperties.set("net.dns" + j++, dnsString);
|
|
}
|
|
}
|
|
for (int k=j ; k<mNumDnsEntries; k++) {
|
|
if (changed || !TextUtils.isEmpty(SystemProperties.get("net.dns" + k))) {
|
|
if (DBG) log("erasing net.dns" + k);
|
|
changed = true;
|
|
SystemProperties.set("net.dns" + k, "");
|
|
}
|
|
}
|
|
mNumDnsEntries = j;
|
|
} else {
|
|
// set per-pid dns for attached secondary nets
|
|
List pids = mNetRequestersPids[netType];
|
|
for (int y=0; y< pids.size(); y++) {
|
|
Integer pid = (Integer)pids.get(y);
|
|
changed = writePidDns(dnses, pid.intValue());
|
|
}
|
|
}
|
|
if (changed) bumpDns();
|
|
}
|
|
}
|
|
|
|
private int getRestoreDefaultNetworkDelay() {
|
|
String restoreDefaultNetworkDelayStr = SystemProperties.get(
|
|
NETWORK_RESTORE_DELAY_PROP_NAME);
|
|
if(restoreDefaultNetworkDelayStr != null &&
|
|
restoreDefaultNetworkDelayStr.length() != 0) {
|
|
try {
|
|
return Integer.valueOf(restoreDefaultNetworkDelayStr);
|
|
} catch (NumberFormatException e) {
|
|
}
|
|
}
|
|
return RESTORE_DEFAULT_NETWORK_DELAY;
|
|
}
|
|
|
|
@Override
|
|
protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
|
|
if (mContext.checkCallingOrSelfPermission(
|
|
android.Manifest.permission.DUMP)
|
|
!= PackageManager.PERMISSION_GRANTED) {
|
|
pw.println("Permission Denial: can't dump ConnectivityService " +
|
|
"from from pid=" + Binder.getCallingPid() + ", uid=" +
|
|
Binder.getCallingUid());
|
|
return;
|
|
}
|
|
pw.println();
|
|
for (NetworkStateTracker nst : mNetTrackers) {
|
|
if (nst != null) {
|
|
if (nst.getNetworkInfo().isConnected()) {
|
|
pw.println("Active network: " + nst.getNetworkInfo().
|
|
getTypeName());
|
|
}
|
|
pw.println(nst.getNetworkInfo());
|
|
pw.println(nst);
|
|
pw.println();
|
|
}
|
|
}
|
|
|
|
pw.println("Network Requester Pids:");
|
|
for (int net : mPriorityList) {
|
|
String pidString = net + ": ";
|
|
for (Object pid : mNetRequestersPids[net]) {
|
|
pidString = pidString + pid.toString() + ", ";
|
|
}
|
|
pw.println(pidString);
|
|
}
|
|
pw.println();
|
|
|
|
pw.println("FeatureUsers:");
|
|
for (Object requester : mFeatureUsers) {
|
|
pw.println(requester.toString());
|
|
}
|
|
pw.println();
|
|
|
|
synchronized (this) {
|
|
pw.println("NetworkTranstionWakeLock is currently " +
|
|
(mNetTransitionWakeLock.isHeld() ? "" : "not ") + "held.");
|
|
pw.println("It was last requested for "+mNetTransitionWakeLockCausedBy);
|
|
}
|
|
pw.println();
|
|
|
|
mTethering.dump(fd, pw, args);
|
|
|
|
if (mInetLog != null) {
|
|
pw.println();
|
|
pw.println("Inet condition reports:");
|
|
for(int i = 0; i < mInetLog.size(); i++) {
|
|
pw.println(mInetLog.get(i));
|
|
}
|
|
}
|
|
}
|
|
|
|
// must be stateless - things change under us.
|
|
private class MyHandler extends Handler {
|
|
public MyHandler(Looper looper) {
|
|
super(looper);
|
|
}
|
|
|
|
@Override
|
|
public void handleMessage(Message msg) {
|
|
NetworkInfo info;
|
|
switch (msg.what) {
|
|
case NetworkStateTracker.EVENT_STATE_CHANGED:
|
|
info = (NetworkInfo) msg.obj;
|
|
int type = info.getType();
|
|
NetworkInfo.State state = info.getState();
|
|
// only do this optimization for wifi. It going into scan mode for location
|
|
// services generates alot of noise. Meanwhile the mms apn won't send out
|
|
// subsequent notifications when on default cellular because it never
|
|
// disconnects.. so only do this to wifi notifications. Fixed better when the
|
|
// APN notifications are standardized.
|
|
if (mNetAttributes[type].mLastState == state &&
|
|
mNetAttributes[type].mRadio == ConnectivityManager.TYPE_WIFI) {
|
|
if (DBG) {
|
|
// TODO - remove this after we validate the dropping doesn't break
|
|
// anything
|
|
log("Dropping ConnectivityChange for " +
|
|
info.getTypeName() + ": " +
|
|
state + "/" + info.getDetailedState());
|
|
}
|
|
return;
|
|
}
|
|
mNetAttributes[type].mLastState = state;
|
|
|
|
if (DBG) log("ConnectivityChange for " +
|
|
info.getTypeName() + ": " +
|
|
state + "/" + info.getDetailedState());
|
|
|
|
// Connectivity state changed:
|
|
// [31-13] Reserved for future use
|
|
// [12-9] Network subtype (for mobile network, as defined
|
|
// by TelephonyManager)
|
|
// [8-3] Detailed state ordinal (as defined by
|
|
// NetworkInfo.DetailedState)
|
|
// [2-0] Network type (as defined by ConnectivityManager)
|
|
int eventLogParam = (info.getType() & 0x7) |
|
|
((info.getDetailedState().ordinal() & 0x3f) << 3) |
|
|
(info.getSubtype() << 9);
|
|
EventLog.writeEvent(EventLogTags.CONNECTIVITY_STATE_CHANGED,
|
|
eventLogParam);
|
|
|
|
if (info.getDetailedState() ==
|
|
NetworkInfo.DetailedState.FAILED) {
|
|
handleConnectionFailure(info);
|
|
} else if (state == NetworkInfo.State.DISCONNECTED) {
|
|
handleDisconnect(info);
|
|
} else if (state == NetworkInfo.State.SUSPENDED) {
|
|
// TODO: need to think this over.
|
|
// the logic here is, handle SUSPENDED the same as
|
|
// DISCONNECTED. The only difference being we are
|
|
// broadcasting an intent with NetworkInfo that's
|
|
// suspended. This allows the applications an
|
|
// opportunity to handle DISCONNECTED and SUSPENDED
|
|
// differently, or not.
|
|
handleDisconnect(info);
|
|
} else if (state == NetworkInfo.State.CONNECTED) {
|
|
handleConnect(info);
|
|
}
|
|
break;
|
|
case NetworkStateTracker.EVENT_CONFIGURATION_CHANGED:
|
|
info = (NetworkInfo) msg.obj;
|
|
type = info.getType();
|
|
handleConnectivityChange(type);
|
|
break;
|
|
case EVENT_CLEAR_NET_TRANSITION_WAKELOCK:
|
|
String causedBy = null;
|
|
synchronized (ConnectivityService.this) {
|
|
if (msg.arg1 == mNetTransitionWakeLockSerialNumber &&
|
|
mNetTransitionWakeLock.isHeld()) {
|
|
mNetTransitionWakeLock.release();
|
|
causedBy = mNetTransitionWakeLockCausedBy;
|
|
}
|
|
}
|
|
if (causedBy != null) {
|
|
log("NetTransition Wakelock for " + causedBy + " released by timeout");
|
|
}
|
|
break;
|
|
case EVENT_RESTORE_DEFAULT_NETWORK:
|
|
FeatureUser u = (FeatureUser)msg.obj;
|
|
u.expire();
|
|
break;
|
|
case EVENT_INET_CONDITION_CHANGE:
|
|
{
|
|
int netType = msg.arg1;
|
|
int condition = msg.arg2;
|
|
handleInetConditionChange(netType, condition);
|
|
break;
|
|
}
|
|
case EVENT_INET_CONDITION_HOLD_END:
|
|
{
|
|
int netType = msg.arg1;
|
|
int sequence = msg.arg2;
|
|
handleInetConditionHoldEnd(netType, sequence);
|
|
break;
|
|
}
|
|
case EVENT_SET_NETWORK_PREFERENCE:
|
|
{
|
|
int preference = msg.arg1;
|
|
handleSetNetworkPreference(preference);
|
|
break;
|
|
}
|
|
case EVENT_SET_BACKGROUND_DATA:
|
|
{
|
|
boolean enabled = (msg.arg1 == ENABLED);
|
|
handleSetBackgroundData(enabled);
|
|
break;
|
|
}
|
|
case EVENT_SET_MOBILE_DATA:
|
|
{
|
|
boolean enabled = (msg.arg1 == ENABLED);
|
|
handleSetMobileData(enabled);
|
|
break;
|
|
}
|
|
case EVENT_APPLY_GLOBAL_HTTP_PROXY:
|
|
{
|
|
handleDeprecatedGlobalHttpProxy();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// javadoc from interface
|
|
public int tether(String iface) {
|
|
enforceTetherChangePermission();
|
|
|
|
if (isTetheringSupported()) {
|
|
return mTethering.tether(iface);
|
|
} else {
|
|
return ConnectivityManager.TETHER_ERROR_UNSUPPORTED;
|
|
}
|
|
}
|
|
|
|
// javadoc from interface
|
|
public int untether(String iface) {
|
|
enforceTetherChangePermission();
|
|
|
|
if (isTetheringSupported()) {
|
|
return mTethering.untether(iface);
|
|
} else {
|
|
return ConnectivityManager.TETHER_ERROR_UNSUPPORTED;
|
|
}
|
|
}
|
|
|
|
// javadoc from interface
|
|
public int getLastTetherError(String iface) {
|
|
enforceTetherAccessPermission();
|
|
|
|
if (isTetheringSupported()) {
|
|
return mTethering.getLastTetherError(iface);
|
|
} else {
|
|
return ConnectivityManager.TETHER_ERROR_UNSUPPORTED;
|
|
}
|
|
}
|
|
|
|
// TODO - proper iface API for selection by property, inspection, etc
|
|
public String[] getTetherableUsbRegexs() {
|
|
enforceTetherAccessPermission();
|
|
if (isTetheringSupported()) {
|
|
return mTethering.getTetherableUsbRegexs();
|
|
} else {
|
|
return new String[0];
|
|
}
|
|
}
|
|
|
|
public String[] getTetherableWifiRegexs() {
|
|
enforceTetherAccessPermission();
|
|
if (isTetheringSupported()) {
|
|
return mTethering.getTetherableWifiRegexs();
|
|
} else {
|
|
return new String[0];
|
|
}
|
|
}
|
|
|
|
public String[] getTetherableBluetoothRegexs() {
|
|
enforceTetherAccessPermission();
|
|
if (isTetheringSupported()) {
|
|
return mTethering.getTetherableBluetoothRegexs();
|
|
} else {
|
|
return new String[0];
|
|
}
|
|
}
|
|
|
|
// TODO - move iface listing, queries, etc to new module
|
|
// javadoc from interface
|
|
public String[] getTetherableIfaces() {
|
|
enforceTetherAccessPermission();
|
|
return mTethering.getTetherableIfaces();
|
|
}
|
|
|
|
public String[] getTetheredIfaces() {
|
|
enforceTetherAccessPermission();
|
|
return mTethering.getTetheredIfaces();
|
|
}
|
|
|
|
public String[] getTetheringErroredIfaces() {
|
|
enforceTetherAccessPermission();
|
|
return mTethering.getErroredIfaces();
|
|
}
|
|
|
|
// if ro.tether.denied = true we default to no tethering
|
|
// gservices could set the secure setting to 1 though to enable it on a build where it
|
|
// had previously been turned off.
|
|
public boolean isTetheringSupported() {
|
|
enforceTetherAccessPermission();
|
|
int defaultVal = (SystemProperties.get("ro.tether.denied").equals("true") ? 0 : 1);
|
|
boolean tetherEnabledInSettings = (Settings.Secure.getInt(mContext.getContentResolver(),
|
|
Settings.Secure.TETHER_SUPPORTED, defaultVal) != 0);
|
|
return tetherEnabledInSettings && mTetheringConfigValid;
|
|
}
|
|
|
|
// An API NetworkStateTrackers can call when they lose their network.
|
|
// This will automatically be cleared after X seconds or a network becomes CONNECTED,
|
|
// whichever happens first. The timer is started by the first caller and not
|
|
// restarted by subsequent callers.
|
|
public void requestNetworkTransitionWakelock(String forWhom) {
|
|
enforceConnectivityInternalPermission();
|
|
synchronized (this) {
|
|
if (mNetTransitionWakeLock.isHeld()) return;
|
|
mNetTransitionWakeLockSerialNumber++;
|
|
mNetTransitionWakeLock.acquire();
|
|
mNetTransitionWakeLockCausedBy = forWhom;
|
|
}
|
|
mHandler.sendMessageDelayed(mHandler.obtainMessage(
|
|
EVENT_CLEAR_NET_TRANSITION_WAKELOCK,
|
|
mNetTransitionWakeLockSerialNumber, 0),
|
|
mNetTransitionWakeLockTimeout);
|
|
return;
|
|
}
|
|
|
|
// 100 percent is full good, 0 is full bad.
|
|
public void reportInetCondition(int networkType, int percentage) {
|
|
if (DBG) log("reportNetworkCondition(" + networkType + ", " + percentage + ")");
|
|
mContext.enforceCallingOrSelfPermission(
|
|
android.Manifest.permission.STATUS_BAR,
|
|
"ConnectivityService");
|
|
|
|
if (DBG) {
|
|
int pid = getCallingPid();
|
|
int uid = getCallingUid();
|
|
String s = pid + "(" + uid + ") reports inet is " +
|
|
(percentage > 50 ? "connected" : "disconnected") + " (" + percentage + ") on " +
|
|
"network Type " + networkType + " at " + GregorianCalendar.getInstance().getTime();
|
|
mInetLog.add(s);
|
|
while(mInetLog.size() > INET_CONDITION_LOG_MAX_SIZE) {
|
|
mInetLog.remove(0);
|
|
}
|
|
}
|
|
mHandler.sendMessage(mHandler.obtainMessage(
|
|
EVENT_INET_CONDITION_CHANGE, networkType, percentage));
|
|
}
|
|
|
|
private void handleInetConditionChange(int netType, int condition) {
|
|
if (DBG) {
|
|
log("Inet connectivity change, net=" +
|
|
netType + ", condition=" + condition +
|
|
",mActiveDefaultNetwork=" + mActiveDefaultNetwork);
|
|
}
|
|
if (mActiveDefaultNetwork == -1) {
|
|
if (DBG) log("no active default network - aborting");
|
|
return;
|
|
}
|
|
if (mActiveDefaultNetwork != netType) {
|
|
if (DBG) log("given net not default - aborting");
|
|
return;
|
|
}
|
|
mDefaultInetCondition = condition;
|
|
int delay;
|
|
if (mInetConditionChangeInFlight == false) {
|
|
if (DBG) log("starting a change hold");
|
|
// setup a new hold to debounce this
|
|
if (mDefaultInetCondition > 50) {
|
|
delay = Settings.Secure.getInt(mContext.getContentResolver(),
|
|
Settings.Secure.INET_CONDITION_DEBOUNCE_UP_DELAY, 500);
|
|
} else {
|
|
delay = Settings.Secure.getInt(mContext.getContentResolver(),
|
|
Settings.Secure.INET_CONDITION_DEBOUNCE_DOWN_DELAY, 3000);
|
|
}
|
|
mInetConditionChangeInFlight = true;
|
|
mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_INET_CONDITION_HOLD_END,
|
|
mActiveDefaultNetwork, mDefaultConnectionSequence), delay);
|
|
} else {
|
|
// we've set the new condition, when this hold ends that will get
|
|
// picked up
|
|
if (DBG) log("currently in hold - not setting new end evt");
|
|
}
|
|
}
|
|
|
|
private void handleInetConditionHoldEnd(int netType, int sequence) {
|
|
if (DBG) {
|
|
log("Inet hold end, net=" + netType +
|
|
", condition =" + mDefaultInetCondition +
|
|
", published condition =" + mDefaultInetConditionPublished);
|
|
}
|
|
mInetConditionChangeInFlight = false;
|
|
|
|
if (mActiveDefaultNetwork == -1) {
|
|
if (DBG) log("no active default network - aborting");
|
|
return;
|
|
}
|
|
if (mDefaultConnectionSequence != sequence) {
|
|
if (DBG) log("event hold for obsolete network - aborting");
|
|
return;
|
|
}
|
|
if (mDefaultInetConditionPublished == mDefaultInetCondition) {
|
|
if (DBG) log("no change in condition - aborting");
|
|
return;
|
|
}
|
|
NetworkInfo networkInfo = mNetTrackers[mActiveDefaultNetwork].getNetworkInfo();
|
|
if (networkInfo.isConnected() == false) {
|
|
if (DBG) log("default network not connected - aborting");
|
|
return;
|
|
}
|
|
mDefaultInetConditionPublished = mDefaultInetCondition;
|
|
sendInetConditionBroadcast(networkInfo);
|
|
return;
|
|
}
|
|
|
|
public synchronized ProxyProperties getProxy() {
|
|
if (mGlobalProxy != null) return mGlobalProxy;
|
|
if (mDefaultProxy != null) return mDefaultProxy;
|
|
return null;
|
|
}
|
|
|
|
public void setGlobalProxy(ProxyProperties proxyProperties) {
|
|
enforceChangePermission();
|
|
synchronized (mGlobalProxyLock) {
|
|
if (proxyProperties == mGlobalProxy) return;
|
|
if (proxyProperties != null && proxyProperties.equals(mGlobalProxy)) return;
|
|
if (mGlobalProxy != null && mGlobalProxy.equals(proxyProperties)) return;
|
|
|
|
String host = "";
|
|
int port = 0;
|
|
String exclList = "";
|
|
if (proxyProperties != null && !TextUtils.isEmpty(proxyProperties.getHost())) {
|
|
mGlobalProxy = new ProxyProperties(proxyProperties);
|
|
host = mGlobalProxy.getHost();
|
|
port = mGlobalProxy.getPort();
|
|
exclList = mGlobalProxy.getExclusionList();
|
|
} else {
|
|
mGlobalProxy = null;
|
|
}
|
|
ContentResolver res = mContext.getContentResolver();
|
|
Settings.Secure.putString(res, Settings.Secure.GLOBAL_HTTP_PROXY_HOST, host);
|
|
Settings.Secure.putInt(res, Settings.Secure.GLOBAL_HTTP_PROXY_PORT, port);
|
|
Settings.Secure.putString(res, Settings.Secure.GLOBAL_HTTP_PROXY_EXCLUSION_LIST,
|
|
exclList);
|
|
}
|
|
|
|
if (mGlobalProxy == null) {
|
|
proxyProperties = mDefaultProxy;
|
|
}
|
|
sendProxyBroadcast(proxyProperties);
|
|
}
|
|
|
|
private void loadGlobalProxy() {
|
|
ContentResolver res = mContext.getContentResolver();
|
|
String host = Settings.Secure.getString(res, Settings.Secure.GLOBAL_HTTP_PROXY_HOST);
|
|
int port = Settings.Secure.getInt(res, Settings.Secure.GLOBAL_HTTP_PROXY_PORT, 0);
|
|
String exclList = Settings.Secure.getString(res,
|
|
Settings.Secure.GLOBAL_HTTP_PROXY_EXCLUSION_LIST);
|
|
if (!TextUtils.isEmpty(host)) {
|
|
ProxyProperties proxyProperties = new ProxyProperties(host, port, exclList);
|
|
synchronized (mGlobalProxyLock) {
|
|
mGlobalProxy = proxyProperties;
|
|
}
|
|
}
|
|
}
|
|
|
|
public ProxyProperties getGlobalProxy() {
|
|
synchronized (mGlobalProxyLock) {
|
|
return mGlobalProxy;
|
|
}
|
|
}
|
|
|
|
private void handleApplyDefaultProxy(int type) {
|
|
// check if new default - push it out to all VM if so
|
|
ProxyProperties proxy = mNetTrackers[type].getLinkProperties().getHttpProxy();
|
|
synchronized (this) {
|
|
if (mDefaultProxy != null && mDefaultProxy.equals(proxy)) return;
|
|
if (mDefaultProxy == proxy) return;
|
|
if (!TextUtils.isEmpty(proxy.getHost())) {
|
|
mDefaultProxy = proxy;
|
|
} else {
|
|
mDefaultProxy = null;
|
|
}
|
|
}
|
|
if (DBG) log("changing default proxy to " + proxy);
|
|
if ((proxy == null && mGlobalProxy == null) || proxy.equals(mGlobalProxy)) return;
|
|
if (mGlobalProxy != null) return;
|
|
sendProxyBroadcast(proxy);
|
|
}
|
|
|
|
private void handleDeprecatedGlobalHttpProxy() {
|
|
String proxy = Settings.Secure.getString(mContext.getContentResolver(),
|
|
Settings.Secure.HTTP_PROXY);
|
|
if (!TextUtils.isEmpty(proxy)) {
|
|
String data[] = proxy.split(":");
|
|
String proxyHost = data[0];
|
|
int proxyPort = 8080;
|
|
if (data.length > 1) {
|
|
try {
|
|
proxyPort = Integer.parseInt(data[1]);
|
|
} catch (NumberFormatException e) {
|
|
return;
|
|
}
|
|
}
|
|
ProxyProperties p = new ProxyProperties(data[0], proxyPort, "");
|
|
setGlobalProxy(p);
|
|
}
|
|
}
|
|
|
|
private void sendProxyBroadcast(ProxyProperties proxy) {
|
|
if (proxy == null) proxy = new ProxyProperties("", 0, "");
|
|
log("sending Proxy Broadcast for " + proxy);
|
|
Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION);
|
|
intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING |
|
|
Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
|
|
intent.putExtra(Proxy.EXTRA_PROXY_INFO, proxy);
|
|
mContext.sendStickyBroadcast(intent);
|
|
}
|
|
|
|
private static class SettingsObserver extends ContentObserver {
|
|
private int mWhat;
|
|
private Handler mHandler;
|
|
SettingsObserver(Handler handler, int what) {
|
|
super(handler);
|
|
mHandler = handler;
|
|
mWhat = what;
|
|
}
|
|
|
|
void observe(Context context) {
|
|
ContentResolver resolver = context.getContentResolver();
|
|
resolver.registerContentObserver(Settings.Secure.getUriFor(
|
|
Settings.Secure.HTTP_PROXY), false, this);
|
|
}
|
|
|
|
@Override
|
|
public void onChange(boolean selfChange) {
|
|
mHandler.obtainMessage(mWhat).sendToTarget();
|
|
}
|
|
}
|
|
|
|
private void log(String s) {
|
|
Slog.d(TAG, s);
|
|
}
|
|
|
|
private void loge(String s) {
|
|
Slog.e(TAG, s);
|
|
}
|
|
int convertFeatureToNetworkType(String feature){
|
|
int networkType = -1;
|
|
if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_MMS)) {
|
|
networkType = ConnectivityManager.TYPE_MOBILE_MMS;
|
|
} else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_SUPL)) {
|
|
networkType = ConnectivityManager.TYPE_MOBILE_SUPL;
|
|
} else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN) ||
|
|
TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN_ALWAYS)) {
|
|
networkType = ConnectivityManager.TYPE_MOBILE_DUN;
|
|
} else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_HIPRI)) {
|
|
networkType = ConnectivityManager.TYPE_MOBILE_HIPRI;
|
|
} else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_FOTA)) {
|
|
networkType = ConnectivityManager.TYPE_MOBILE_FOTA;
|
|
} else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_IMS)) {
|
|
networkType = ConnectivityManager.TYPE_MOBILE_IMS;
|
|
} else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_CBS)) {
|
|
networkType = ConnectivityManager.TYPE_MOBILE_CBS;
|
|
}
|
|
return networkType;
|
|
}
|
|
}
|