auto import from //depot/cupcake/@135843
This commit is contained in:
The Android Open Source Project
@@ -1,741 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2008 The Android Open Source Project
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
package com.android.server;
|
||||
|
||||
import android.app.Notification;
|
||||
import android.app.NotificationManager;
|
||||
import android.content.ContentResolver;
|
||||
import android.content.Context;
|
||||
import android.content.Intent;
|
||||
import android.content.pm.PackageManager;
|
||||
import android.net.ConnectivityManager;
|
||||
import android.net.IConnectivityManager;
|
||||
import android.net.MobileDataStateTracker;
|
||||
import android.net.NetworkInfo;
|
||||
import android.net.NetworkStateTracker;
|
||||
import android.net.wifi.WifiStateTracker;
|
||||
import android.os.Binder;
|
||||
import android.os.Handler;
|
||||
import android.os.Looper;
|
||||
import android.os.Message;
|
||||
import android.os.ServiceManager;
|
||||
import android.os.SystemProperties;
|
||||
import android.provider.Settings;
|
||||
import android.provider.Sync;
|
||||
import android.util.EventLog;
|
||||
import android.util.Log;
|
||||
|
||||
import java.io.FileDescriptor;
|
||||
import java.io.PrintWriter;
|
||||
|
||||
/**
|
||||
* @hide
|
||||
*/
|
||||
public class ConnectivityService extends IConnectivityManager.Stub {
|
||||
|
||||
private static final boolean DBG = false;
|
||||
private static final String TAG = "ConnectivityService";
|
||||
|
||||
// Event log tags (must be in sync with event-log-tags)
|
||||
private static final int EVENTLOG_CONNECTIVITY_STATE_CHANGED = 50020;
|
||||
|
||||
/**
|
||||
* Sometimes we want to refer to the individual network state
|
||||
* trackers separately, and sometimes we just want to treat them
|
||||
* abstractly.
|
||||
*/
|
||||
private NetworkStateTracker mNetTrackers[];
|
||||
private WifiStateTracker mWifiStateTracker;
|
||||
private MobileDataStateTracker mMobileDataStateTracker;
|
||||
private WifiWatchdogService mWifiWatchdogService;
|
||||
|
||||
private Context mContext;
|
||||
private int mNetworkPreference;
|
||||
private NetworkStateTracker mActiveNetwork;
|
||||
|
||||
private int mNumDnsEntries;
|
||||
private static int sDnsChangeCounter;
|
||||
|
||||
private boolean mTestMode;
|
||||
private static ConnectivityService sServiceInstance;
|
||||
|
||||
private static class ConnectivityThread extends Thread {
|
||||
private Context mContext;
|
||||
|
||||
private ConnectivityThread(Context context) {
|
||||
super("ConnectivityThread");
|
||||
mContext = context;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void run() {
|
||||
Looper.prepare();
|
||||
synchronized (this) {
|
||||
sServiceInstance = new ConnectivityService(mContext);
|
||||
notifyAll();
|
||||
}
|
||||
Looper.loop();
|
||||
}
|
||||
|
||||
public static ConnectivityService getServiceInstance(Context context) {
|
||||
ConnectivityThread thread = new ConnectivityThread(context);
|
||||
thread.start();
|
||||
|
||||
synchronized (thread) {
|
||||
while (sServiceInstance == null) {
|
||||
try {
|
||||
// Wait until sServiceInstance has been initialized.
|
||||
thread.wait();
|
||||
} catch (InterruptedException ignore) {
|
||||
Log.e(TAG,
|
||||
"Unexpected InterruptedException while waiting for ConnectivityService thread");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return sServiceInstance;
|
||||
}
|
||||
}
|
||||
|
||||
public static ConnectivityService getInstance(Context context) {
|
||||
return ConnectivityThread.getServiceInstance(context);
|
||||
}
|
||||
|
||||
private ConnectivityService(Context context) {
|
||||
if (DBG) Log.v(TAG, "ConnectivityService starting up");
|
||||
mContext = context;
|
||||
mNetTrackers = new NetworkStateTracker[2];
|
||||
Handler handler = new MyHandler();
|
||||
|
||||
mNetworkPreference = getPersistedNetworkPreference();
|
||||
|
||||
/*
|
||||
* Create the network state trackers for Wi-Fi and mobile
|
||||
* data. Maybe this could be done with a factory class,
|
||||
* but it's not clear that it's worth it, given that
|
||||
* the number of different network types is not going
|
||||
* to change very often.
|
||||
*/
|
||||
if (DBG) Log.v(TAG, "Starting Wifi Service.");
|
||||
mWifiStateTracker = new WifiStateTracker(context, handler);
|
||||
WifiService wifiService = new WifiService(context, mWifiStateTracker);
|
||||
ServiceManager.addService(Context.WIFI_SERVICE, wifiService);
|
||||
mNetTrackers[ConnectivityManager.TYPE_WIFI] = mWifiStateTracker;
|
||||
|
||||
mMobileDataStateTracker = new MobileDataStateTracker(context, handler);
|
||||
mNetTrackers[ConnectivityManager.TYPE_MOBILE] = mMobileDataStateTracker;
|
||||
|
||||
mActiveNetwork = null;
|
||||
mNumDnsEntries = 0;
|
||||
|
||||
mTestMode = SystemProperties.get("cm.test.mode").equals("true")
|
||||
&& SystemProperties.get("ro.build.type").equals("eng");
|
||||
|
||||
for (NetworkStateTracker t : mNetTrackers)
|
||||
t.startMonitoring();
|
||||
|
||||
// Constructing this starts it too
|
||||
mWifiWatchdogService = new WifiWatchdogService(context, mWifiStateTracker);
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the preferred network.
|
||||
* @param preference the new preference
|
||||
*/
|
||||
public synchronized void setNetworkPreference(int preference) {
|
||||
enforceChangePermission();
|
||||
if (ConnectivityManager.isNetworkTypeValid(preference)) {
|
||||
if (mNetworkPreference != preference) {
|
||||
persistNetworkPreference(preference);
|
||||
mNetworkPreference = preference;
|
||||
enforcePreference();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public int getNetworkPreference() {
|
||||
enforceAccessPermission();
|
||||
return mNetworkPreference;
|
||||
}
|
||||
|
||||
private void persistNetworkPreference(int networkPreference) {
|
||||
final ContentResolver cr = mContext.getContentResolver();
|
||||
Settings.Secure.putInt(cr, Settings.Secure.NETWORK_PREFERENCE, networkPreference);
|
||||
}
|
||||
|
||||
private int getPersistedNetworkPreference() {
|
||||
final ContentResolver cr = mContext.getContentResolver();
|
||||
|
||||
final int networkPrefSetting = Settings.Secure
|
||||
.getInt(cr, Settings.Secure.NETWORK_PREFERENCE, -1);
|
||||
if (networkPrefSetting != -1) {
|
||||
return networkPrefSetting;
|
||||
}
|
||||
|
||||
return ConnectivityManager.DEFAULT_NETWORK_PREFERENCE;
|
||||
}
|
||||
|
||||
/**
|
||||
* Make the state of network connectivity conform to the preference settings.
|
||||
* In this method, we only tear down a non-preferred network. Establishing
|
||||
* a connection to the preferred network is taken care of when we handle
|
||||
* the disconnect event from the non-preferred network
|
||||
* (see {@link #handleDisconnect(NetworkInfo)}).
|
||||
*/
|
||||
private void enforcePreference() {
|
||||
if (mActiveNetwork == null)
|
||||
return;
|
||||
|
||||
for (NetworkStateTracker t : mNetTrackers) {
|
||||
if (t == mActiveNetwork) {
|
||||
int netType = t.getNetworkInfo().getType();
|
||||
int otherNetType = ((netType == ConnectivityManager.TYPE_WIFI) ?
|
||||
ConnectivityManager.TYPE_MOBILE :
|
||||
ConnectivityManager.TYPE_WIFI);
|
||||
|
||||
if (t.getNetworkInfo().getType() != mNetworkPreference) {
|
||||
NetworkStateTracker otherTracker = mNetTrackers[otherNetType];
|
||||
if (otherTracker.isAvailable()) {
|
||||
teardown(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 (NetworkStateTracker t : mNetTrackers) {
|
||||
NetworkInfo info = t.getNetworkInfo();
|
||||
if (info.isConnected()) {
|
||||
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[mNetTrackers.length];
|
||||
int i = 0;
|
||||
for (NetworkStateTracker t : mNetTrackers) {
|
||||
result[i++] = t.getNetworkInfo();
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
public boolean setRadios(boolean turnOn) {
|
||||
boolean result = true;
|
||||
enforceChangePermission();
|
||||
for (NetworkStateTracker t : mNetTrackers) {
|
||||
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);
|
||||
}
|
||||
|
||||
public int startUsingNetworkFeature(int networkType, String feature) {
|
||||
enforceChangePermission();
|
||||
if (!ConnectivityManager.isNetworkTypeValid(networkType)) {
|
||||
return -1;
|
||||
}
|
||||
NetworkStateTracker tracker = mNetTrackers[networkType];
|
||||
if (tracker != null) {
|
||||
return tracker.startUsingNetworkFeature(feature, getCallingPid(), getCallingUid());
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
|
||||
public int stopUsingNetworkFeature(int networkType, String feature) {
|
||||
enforceChangePermission();
|
||||
if (!ConnectivityManager.isNetworkTypeValid(networkType)) {
|
||||
return -1;
|
||||
}
|
||||
NetworkStateTracker tracker = mNetTrackers[networkType];
|
||||
if (tracker != null) {
|
||||
return tracker.stopUsingNetworkFeature(feature, getCallingPid(), getCallingUid());
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
|
||||
/**
|
||||
* 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) {
|
||||
enforceChangePermission();
|
||||
if (!ConnectivityManager.isNetworkTypeValid(networkType)) {
|
||||
return false;
|
||||
}
|
||||
NetworkStateTracker tracker = mNetTrackers[networkType];
|
||||
/*
|
||||
* If there's only one connected network, and it's the one requested,
|
||||
* then we don't have to do anything - the requested route already
|
||||
* exists. If it's not the requested network, then it's not possible
|
||||
* to establish the requested route. Finally, if there is more than
|
||||
* one connected network, then we must insert an entry in the routing
|
||||
* table.
|
||||
*/
|
||||
if (getNumConnectedNetworks() > 1) {
|
||||
return tracker.requestRouteToHost(hostAddress);
|
||||
} else {
|
||||
return tracker.getNetworkInfo().getType() == networkType;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @see ConnectivityManager#getBackgroundDataSetting()
|
||||
*/
|
||||
public boolean getBackgroundDataSetting() {
|
||||
return Settings.Secure.getInt(mContext.getContentResolver(),
|
||||
Settings.Secure.BACKGROUND_DATA, 1) == 1;
|
||||
}
|
||||
|
||||
/**
|
||||
* @see ConnectivityManager#setBackgroundDataSetting(boolean)
|
||||
*/
|
||||
public void setBackgroundDataSetting(boolean allowBackgroundDataUsage) {
|
||||
mContext.enforceCallingOrSelfPermission(
|
||||
android.Manifest.permission.CHANGE_BACKGROUND_DATA_SETTING,
|
||||
"ConnectivityService");
|
||||
|
||||
if (getBackgroundDataSetting() == allowBackgroundDataUsage) return;
|
||||
|
||||
Settings.Secure.putInt(mContext.getContentResolver(),
|
||||
Settings.Secure.BACKGROUND_DATA, allowBackgroundDataUsage ? 1 : 0);
|
||||
|
||||
Intent broadcast = new Intent(
|
||||
ConnectivityManager.ACTION_BACKGROUND_DATA_SETTING_CHANGED);
|
||||
mContext.sendBroadcast(broadcast);
|
||||
}
|
||||
|
||||
private int getNumConnectedNetworks() {
|
||||
int numConnectedNets = 0;
|
||||
|
||||
for (NetworkStateTracker nt : mNetTrackers) {
|
||||
if (nt.getNetworkInfo().isConnected() && !nt.isTeardownRequested()) {
|
||||
++numConnectedNets;
|
||||
}
|
||||
}
|
||||
return numConnectedNets;
|
||||
}
|
||||
|
||||
private void enforceAccessPermission() {
|
||||
mContext.enforceCallingOrSelfPermission(android.Manifest.permission.ACCESS_NETWORK_STATE,
|
||||
"ConnectivityService");
|
||||
}
|
||||
|
||||
private void enforceChangePermission() {
|
||||
mContext.enforceCallingOrSelfPermission(android.Manifest.permission.CHANGE_NETWORK_STATE,
|
||||
"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) {
|
||||
|
||||
if (DBG) Log.v(TAG, "Handle DISCONNECT for " + info.getTypeName());
|
||||
|
||||
mNetTrackers[info.getType()].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 (mActiveNetwork == null || info.getType() != mActiveNetwork.getNetworkInfo().getType())
|
||||
return;
|
||||
|
||||
NetworkStateTracker newNet;
|
||||
if (info.getType() == ConnectivityManager.TYPE_MOBILE) {
|
||||
newNet = mWifiStateTracker;
|
||||
} else /* info().getType() == TYPE_WIFI */ {
|
||||
newNet = mMobileDataStateTracker;
|
||||
}
|
||||
|
||||
/**
|
||||
* See if the other network is available to fail over to.
|
||||
* If is not available, we enable it anyway, so that it
|
||||
* will be able to connect when it does become available,
|
||||
* but we report a total loss of connectivity rather than
|
||||
* report that we are attempting to fail over.
|
||||
*/
|
||||
NetworkInfo switchTo = null;
|
||||
if (newNet.isAvailable()) {
|
||||
mActiveNetwork = newNet;
|
||||
switchTo = newNet.getNetworkInfo();
|
||||
switchTo.setFailover(true);
|
||||
if (!switchTo.isConnectedOrConnecting()) {
|
||||
newNet.reconnect();
|
||||
}
|
||||
} else {
|
||||
newNet.reconnect();
|
||||
}
|
||||
|
||||
boolean otherNetworkConnected = 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 (switchTo != null) {
|
||||
otherNetworkConnected = switchTo.isConnected();
|
||||
if (DBG) {
|
||||
if (otherNetworkConnected) {
|
||||
Log.v(TAG, "Switching to already connected " + switchTo.getTypeName());
|
||||
} else {
|
||||
Log.v(TAG, "Attempting to switch to " + switchTo.getTypeName());
|
||||
}
|
||||
}
|
||||
intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, switchTo);
|
||||
} else {
|
||||
intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true);
|
||||
}
|
||||
if (DBG) Log.v(TAG, "Sending DISCONNECT bcast for " + info.getTypeName() +
|
||||
(switchTo == null ? "" : " other=" + switchTo.getTypeName()));
|
||||
|
||||
mContext.sendStickyBroadcast(intent);
|
||||
/*
|
||||
* If the failover network is already connected, then immediately send out
|
||||
* a followup broadcast indicating successful failover
|
||||
*/
|
||||
if (switchTo != null && otherNetworkConnected)
|
||||
sendConnectedBroadcast(switchTo);
|
||||
}
|
||||
|
||||
private void sendConnectedBroadcast(NetworkInfo info) {
|
||||
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());
|
||||
}
|
||||
mContext.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);
|
||||
if (getActiveNetworkInfo() == null) {
|
||||
String reason = info.getReason();
|
||||
String extraInfo = info.getExtraInfo();
|
||||
|
||||
if (DBG) {
|
||||
String reasonText;
|
||||
if (reason == null) {
|
||||
reasonText = ".";
|
||||
} else {
|
||||
reasonText = " (" + reason + ").";
|
||||
}
|
||||
Log.v(TAG, "Attempt to connect to " + info.getTypeName() + " failed" + reasonText);
|
||||
}
|
||||
|
||||
Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION);
|
||||
intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info);
|
||||
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);
|
||||
}
|
||||
mContext.sendStickyBroadcast(intent);
|
||||
}
|
||||
}
|
||||
|
||||
private void handleConnect(NetworkInfo info) {
|
||||
if (DBG) Log.v(TAG, "Handle CONNECT for " + info.getTypeName());
|
||||
|
||||
// snapshot isFailover, because sendConnectedBroadcast() resets it
|
||||
boolean isFailover = info.isFailover();
|
||||
NetworkStateTracker thisNet = mNetTrackers[info.getType()];
|
||||
NetworkStateTracker deadnet = null;
|
||||
NetworkStateTracker otherNet;
|
||||
if (info.getType() == ConnectivityManager.TYPE_MOBILE) {
|
||||
otherNet = mWifiStateTracker;
|
||||
} else /* info().getType() == TYPE_WIFI */ {
|
||||
otherNet = mMobileDataStateTracker;
|
||||
}
|
||||
/*
|
||||
* Check policy to see whether we are connected to a non-preferred
|
||||
* network that now needs to be torn down.
|
||||
*/
|
||||
NetworkInfo wifiInfo = mWifiStateTracker.getNetworkInfo();
|
||||
NetworkInfo mobileInfo = mMobileDataStateTracker.getNetworkInfo();
|
||||
if (wifiInfo.isConnected() && mobileInfo.isConnected()) {
|
||||
if (mNetworkPreference == ConnectivityManager.TYPE_WIFI)
|
||||
deadnet = mMobileDataStateTracker;
|
||||
else
|
||||
deadnet = mWifiStateTracker;
|
||||
}
|
||||
|
||||
boolean toredown = false;
|
||||
thisNet.setTeardownRequested(false);
|
||||
if (!mTestMode && deadnet != null) {
|
||||
if (DBG) Log.v(TAG, "Policy requires " +
|
||||
deadnet.getNetworkInfo().getTypeName() + " teardown");
|
||||
toredown = teardown(deadnet);
|
||||
if (DBG && !toredown) {
|
||||
Log.d(TAG, "Network declined teardown request");
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Note that if toredown is true, deadnet cannot be null, so there is
|
||||
* no danger of a null pointer exception here..
|
||||
*/
|
||||
if (!toredown || deadnet.getNetworkInfo().getType() != info.getType()) {
|
||||
mActiveNetwork = thisNet;
|
||||
if (DBG) Log.v(TAG, "Sending CONNECT bcast for " + info.getTypeName());
|
||||
thisNet.updateNetworkSettings();
|
||||
sendConnectedBroadcast(info);
|
||||
if (isFailover) {
|
||||
otherNet.releaseWakeLock();
|
||||
}
|
||||
} else {
|
||||
if (DBG) Log.v(TAG, "Not broadcasting CONNECT_ACTION to torn down network " +
|
||||
info.getTypeName());
|
||||
}
|
||||
}
|
||||
|
||||
private void handleScanResultsAvailable(NetworkInfo info) {
|
||||
int networkType = info.getType();
|
||||
if (networkType != ConnectivityManager.TYPE_WIFI) {
|
||||
if (DBG) Log.v(TAG, "Got ScanResultsAvailable for " + info.getTypeName() + " network."
|
||||
+ " Don't know how to handle.");
|
||||
}
|
||||
|
||||
mNetTrackers[networkType].interpretScanResultsAvailable();
|
||||
}
|
||||
|
||||
private void handleNotificationChange(boolean visible, int id, Notification notification) {
|
||||
NotificationManager notificationManager = (NotificationManager) mContext
|
||||
.getSystemService(Context.NOTIFICATION_SERVICE);
|
||||
|
||||
if (visible) {
|
||||
notificationManager.notify(id, notification);
|
||||
} else {
|
||||
notificationManager.cancel(id);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* After any kind of change in the connectivity state of any network,
|
||||
* make sure that anything that depends on the connectivity state of
|
||||
* more than one network is set up correctly. 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() {
|
||||
/*
|
||||
* If both mobile and wifi are enabled, add the host routes that
|
||||
* will allow MMS traffic to pass on the mobile network. But
|
||||
* remove the default route for the mobile network, so that there
|
||||
* will be only one default route, to ensure that all traffic
|
||||
* except MMS will travel via Wi-Fi.
|
||||
*/
|
||||
int numConnectedNets = handleConfigurationChange();
|
||||
if (numConnectedNets > 1) {
|
||||
mMobileDataStateTracker.addPrivateRoutes();
|
||||
mMobileDataStateTracker.removeDefaultRoute();
|
||||
} else if (mMobileDataStateTracker.getNetworkInfo().isConnected()) {
|
||||
mMobileDataStateTracker.removePrivateRoutes();
|
||||
mMobileDataStateTracker.restoreDefaultRoute();
|
||||
}
|
||||
}
|
||||
|
||||
private int handleConfigurationChange() {
|
||||
/*
|
||||
* Set DNS properties. Always put Wi-Fi entries at the front of
|
||||
* the list if it is active.
|
||||
*/
|
||||
int index = 1;
|
||||
String lastDns = "";
|
||||
int numConnectedNets = 0;
|
||||
int incrValue = ConnectivityManager.TYPE_MOBILE - ConnectivityManager.TYPE_WIFI;
|
||||
int stopValue = ConnectivityManager.TYPE_MOBILE + incrValue;
|
||||
|
||||
for (int netType = ConnectivityManager.TYPE_WIFI; netType != stopValue; netType += incrValue) {
|
||||
NetworkStateTracker nt = mNetTrackers[netType];
|
||||
if (nt.getNetworkInfo().isConnected() && !nt.isTeardownRequested()) {
|
||||
++numConnectedNets;
|
||||
String[] dnsList = nt.getNameServers();
|
||||
for (int i = 0; i < dnsList.length && dnsList[i] != null; i++) {
|
||||
// skip duplicate entries
|
||||
if (!dnsList[i].equals(lastDns)) {
|
||||
SystemProperties.set("net.dns" + index++, dnsList[i]);
|
||||
lastDns = dnsList[i];
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
// Null out any DNS properties that are no longer used
|
||||
for (int i = index; i <= mNumDnsEntries; i++) {
|
||||
SystemProperties.set("net.dns" + i, "");
|
||||
}
|
||||
mNumDnsEntries = index - 1;
|
||||
// Notify the name resolver library of the change
|
||||
SystemProperties.set("net.dnschange", String.valueOf(sDnsChangeCounter++));
|
||||
return numConnectedNets;
|
||||
}
|
||||
|
||||
@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;
|
||||
}
|
||||
if (mActiveNetwork == null) {
|
||||
pw.println("No active network");
|
||||
} else {
|
||||
pw.println("Active network: " + mActiveNetwork.getNetworkInfo().getTypeName());
|
||||
}
|
||||
pw.println();
|
||||
for (NetworkStateTracker nst : mNetTrackers) {
|
||||
pw.println(nst.getNetworkInfo());
|
||||
pw.println(nst);
|
||||
pw.println();
|
||||
}
|
||||
}
|
||||
|
||||
private class MyHandler extends Handler {
|
||||
@Override
|
||||
public void handleMessage(Message msg) {
|
||||
NetworkInfo info;
|
||||
switch (msg.what) {
|
||||
case NetworkStateTracker.EVENT_STATE_CHANGED:
|
||||
info = (NetworkInfo) msg.obj;
|
||||
if (DBG) Log.v(TAG, "ConnectivityChange for " + info.getTypeName() + ": " +
|
||||
info.getState() + "/" + 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(EVENTLOG_CONNECTIVITY_STATE_CHANGED, eventLogParam);
|
||||
|
||||
if (info.getDetailedState() == NetworkInfo.DetailedState.FAILED) {
|
||||
handleConnectionFailure(info);
|
||||
} else if (info.getState() == NetworkInfo.State.DISCONNECTED) {
|
||||
handleDisconnect(info);
|
||||
} else if (info.getState() == 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 (info.getState() == NetworkInfo.State.CONNECTED) {
|
||||
handleConnect(info);
|
||||
}
|
||||
handleConnectivityChange();
|
||||
break;
|
||||
|
||||
case NetworkStateTracker.EVENT_SCAN_RESULTS_AVAILABLE:
|
||||
info = (NetworkInfo) msg.obj;
|
||||
handleScanResultsAvailable(info);
|
||||
break;
|
||||
|
||||
case NetworkStateTracker.EVENT_NOTIFICATION_CHANGED:
|
||||
handleNotificationChange(msg.arg1 == 1, msg.arg2, (Notification) msg.obj);
|
||||
|
||||
case NetworkStateTracker.EVENT_CONFIGURATION_CHANGED:
|
||||
handleConfigurationChange();
|
||||
break;
|
||||
|
||||
case NetworkStateTracker.EVENT_ROAMING_CHANGED:
|
||||
// fill me in
|
||||
break;
|
||||
|
||||
case NetworkStateTracker.EVENT_NETWORK_SUBTYPE_CHANGED:
|
||||
// fill me in
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user