030f5e18df
Make the tethering module aware of UMS. bug:2469818 Change-Id: I29995812db41bf01a17c303f31fd1707a8d55328
1501 lines
61 KiB
Java
1501 lines
61 KiB
Java
/*
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* Copyright (C) 2010 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.connectivity;
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import android.app.Notification;
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import android.app.NotificationManager;
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import android.app.PendingIntent;
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import android.content.BroadcastReceiver;
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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.IntentFilter;
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import android.content.pm.PackageManager;
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import android.content.res.Resources;
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import android.net.ConnectivityManager;
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import android.net.InterfaceConfiguration;
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import android.net.IConnectivityManager;
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import android.net.INetworkManagementEventObserver;
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import android.net.NetworkInfo;
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import android.os.BatteryManager;
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import android.os.Binder;
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import android.os.Environment;
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import android.os.IBinder;
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import android.os.INetworkManagementService;
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import android.os.Message;
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import android.os.RemoteException;
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import android.os.ServiceManager;
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import android.provider.Settings;
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import android.util.Log;
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import com.android.internal.telephony.Phone;
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import com.android.internal.util.HierarchicalState;
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import com.android.internal.util.HierarchicalStateMachine;
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import java.io.FileDescriptor;
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import java.io.PrintWriter;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.Set;
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/**
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* @hide
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*
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* Timeout
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*
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* TODO - look for parent classes and code sharing
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*/
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public class Tethering extends INetworkManagementEventObserver.Stub {
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private Context mContext;
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private final String TAG = "Tethering";
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private boolean mBooted = false;
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//used to remember if we got connected before boot finished
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private boolean mDeferedUsbConnection = false;
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// TODO - remove both of these - should be part of interface inspection/selection stuff
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private String[] mTetherableUsbRegexs;
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private String[] mTetherableWifiRegexs;
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private String[] mUpstreamIfaceRegexs;
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private HashMap<String, TetherInterfaceSM> mIfaces; // all tethered/tetherable ifaces
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private BroadcastReceiver mStateReceiver;
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private static final String USB_NEAR_IFACE_ADDR = "169.254.2.1";
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private String[] mDhcpRange;
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private static final String DHCP_DEFAULT_RANGE_START = "169.254.2.10";
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private static final String DHCP_DEFAULT_RANGE_STOP = "169.254.2.64";
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private String[] mDnsServers;
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private static final String DNS_DEFAULT_SERVER1 = "8.8.8.8";
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private static final String DNS_DEFAULT_SERVER2 = "4.2.2.2";
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private boolean mDunRequired; // configuration info - must use DUN apn on 3g
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private boolean mUseHiPri;
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private String mUpstreamIfaceName;
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private HierarchicalStateMachine mTetherMasterSM;
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private Notification mTetheredNotification;
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// whether we can tether is the && of these two - they come in as separate
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// broadcasts so track them so we can decide what to do when either changes
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private boolean mUsbMassStorageOff; // track the status of USB Mass Storage
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private boolean mUsbConnected; // track the status of USB connection
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public Tethering(Context context) {
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Log.d(TAG, "Tethering starting");
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mContext = context;
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// register for notifications from NetworkManagement Service
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IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE);
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INetworkManagementService service = INetworkManagementService.Stub.asInterface(b);
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try {
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service.registerObserver(this);
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} catch (RemoteException e) {
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Log.e(TAG, "Error registering observer :" + e);
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}
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mIfaces = new HashMap<String, TetherInterfaceSM>();
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mTetherMasterSM = new TetherMasterSM("TetherMaster");
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mTetherMasterSM.start();
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// TODO - remove this hack after real USB connections are detected.
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IntentFilter filter = new IntentFilter();
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filter.addAction(Intent.ACTION_BATTERY_CHANGED);
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filter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
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filter.addAction(Intent.ACTION_BOOT_COMPLETED);
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filter.addAction(Intent.ACTION_MEDIA_SHARED);
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filter.addAction(Intent.ACTION_MEDIA_UNSHARED);
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mUsbMassStorageOff = !Environment.MEDIA_SHARED.equals(
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Environment.getExternalStorageState());
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mStateReceiver = new StateReceiver();
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mContext.registerReceiver(mStateReceiver, filter);
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mDhcpRange = context.getResources().getStringArray(
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com.android.internal.R.array.config_tether_dhcp_range);
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if (mDhcpRange.length == 0) {
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mDhcpRange = new String[2];
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mDhcpRange[0] = DHCP_DEFAULT_RANGE_START;
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mDhcpRange[1] = DHCP_DEFAULT_RANGE_STOP;
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} else if(mDhcpRange.length == 1) {
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String[] tmp = new String[2];
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tmp[0] = mDhcpRange[0];
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tmp[1] = new String("");
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mDhcpRange = tmp;
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}
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mDunRequired = context.getResources().getBoolean(
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com.android.internal.R.bool.config_tether_dun_required);
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mTetherableUsbRegexs = context.getResources().getStringArray(
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com.android.internal.R.array.config_tether_usb_regexs);
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mTetherableWifiRegexs = context.getResources().getStringArray(
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com.android.internal.R.array.config_tether_wifi_regexs);
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mUpstreamIfaceRegexs = context.getResources().getStringArray(
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com.android.internal.R.array.config_tether_upstream_regexs);
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// TODO - remove and rely on real notifications of the current iface
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mDnsServers = new String[2];
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mDnsServers[0] = DNS_DEFAULT_SERVER1;
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mDnsServers[1] = DNS_DEFAULT_SERVER2;
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}
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public void interfaceLinkStatusChanged(String iface, boolean link) {
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Log.d(TAG, "interfaceLinkStatusChanged " + iface + ", " + link);
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boolean found = false;
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boolean usb = false;
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if (isWifi(iface)) {
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found = true;
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} else if (isUsb(iface)) {
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found = true;
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usb = true;
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}
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if (found == false) return;
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synchronized (mIfaces) {
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TetherInterfaceSM sm = mIfaces.get(iface);
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if (link) {
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if (sm == null) {
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sm = new TetherInterfaceSM(iface, usb);
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mIfaces.put(iface, sm);
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sm.start();
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}
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} else {
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if (sm != null) {
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sm.sendMessage(sm.obtainMessage(TetherInterfaceSM.CMD_INTERFACE_DOWN));
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mIfaces.remove(iface);
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}
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}
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}
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}
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private boolean isUsb(String iface) {
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for (String regex : mTetherableUsbRegexs) {
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if (iface.matches(regex)) return true;
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}
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return false;
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}
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public boolean isWifi(String iface) {
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for (String regex : mTetherableWifiRegexs) {
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if (iface.matches(regex)) return true;
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}
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return false;
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}
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public void interfaceAdded(String iface) {
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IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE);
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INetworkManagementService service = INetworkManagementService.Stub.asInterface(b);
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boolean found = false;
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boolean usb = false;
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if (isWifi(iface)) {
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found = true;
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}
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if (isUsb(iface)) {
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found = true;
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usb = true;
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}
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if (found == false) {
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Log.d(TAG, iface + " is not a tetherable iface, ignoring");
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return;
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}
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synchronized (mIfaces) {
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TetherInterfaceSM sm = mIfaces.get(iface);
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if (sm != null) {
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Log.e(TAG, "active iface (" + iface + ") reported as added, ignoring");
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return;
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}
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sm = new TetherInterfaceSM(iface, usb);
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mIfaces.put(iface, sm);
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sm.start();
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}
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Log.d(TAG, "interfaceAdded :" + iface);
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}
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public void interfaceRemoved(String iface) {
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synchronized (mIfaces) {
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TetherInterfaceSM sm = mIfaces.get(iface);
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if (sm == null) {
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Log.e(TAG, "attempting to remove unknown iface (" + iface + "), ignoring");
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return;
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}
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sm.sendMessage(sm.obtainMessage(TetherInterfaceSM.CMD_INTERFACE_DOWN));
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mIfaces.remove(iface);
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}
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}
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public int tether(String iface) {
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Log.d(TAG, "Tethering " + iface);
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TetherInterfaceSM sm = null;
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synchronized (mIfaces) {
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sm = mIfaces.get(iface);
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}
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if (sm == null) {
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Log.e(TAG, "Tried to Tether an unknown iface :" + iface + ", ignoring");
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return ConnectivityManager.TETHER_ERROR_UNKNOWN_IFACE;
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}
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if (!sm.isAvailable() && !sm.isErrored()) {
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Log.e(TAG, "Tried to Tether an unavailable iface :" + iface + ", ignoring");
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return ConnectivityManager.TETHER_ERROR_UNAVAIL_IFACE;
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}
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sm.sendMessage(sm.obtainMessage(TetherInterfaceSM.CMD_TETHER_REQUESTED));
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return ConnectivityManager.TETHER_ERROR_NO_ERROR;
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}
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public int untether(String iface) {
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Log.d(TAG, "Untethering " + iface);
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TetherInterfaceSM sm = null;
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synchronized (mIfaces) {
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sm = mIfaces.get(iface);
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}
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if (sm == null) {
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Log.e(TAG, "Tried to Untether an unknown iface :" + iface + ", ignoring");
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return ConnectivityManager.TETHER_ERROR_UNKNOWN_IFACE;
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}
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if (sm.isErrored()) {
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Log.e(TAG, "Tried to Untethered an errored iface :" + iface + ", ignoring");
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return ConnectivityManager.TETHER_ERROR_UNAVAIL_IFACE;
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}
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sm.sendMessage(sm.obtainMessage(TetherInterfaceSM.CMD_TETHER_UNREQUESTED));
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return ConnectivityManager.TETHER_ERROR_NO_ERROR;
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}
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public int getLastTetherError(String iface) {
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TetherInterfaceSM sm = null;
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synchronized (mIfaces) {
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sm = mIfaces.get(iface);
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}
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if (sm == null) {
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Log.e(TAG, "Tried to getLastTetherError on an unknown iface :" + iface + ", ignoring");
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return ConnectivityManager.TETHER_ERROR_UNKNOWN_IFACE;
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}
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return sm.getLastError();
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}
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private void sendTetherStateChangedBroadcast() {
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IBinder b = ServiceManager.getService(Context.CONNECTIVITY_SERVICE);
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IConnectivityManager service = IConnectivityManager.Stub.asInterface(b);
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try {
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if (!service.isTetheringSupported()) return;
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} catch (RemoteException e) {
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return;
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}
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ArrayList<String> availableList = new ArrayList<String>();
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ArrayList<String> activeList = new ArrayList<String>();
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ArrayList<String> erroredList = new ArrayList<String>();
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boolean wifiTethered = false;
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boolean usbTethered = false;
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synchronized (mIfaces) {
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Set ifaces = mIfaces.keySet();
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for (Object iface : ifaces) {
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TetherInterfaceSM sm = mIfaces.get(iface);
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if (sm != null) {
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if(sm.isErrored()) {
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erroredList.add((String)iface);
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} else if (sm.isAvailable()) {
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availableList.add((String)iface);
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} else if (sm.isTethered()) {
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if (isUsb((String)iface)) {
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usbTethered = true;
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} else if (isWifi((String)iface)) {
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wifiTethered = true;
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}
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activeList.add((String)iface);
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}
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}
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}
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}
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Intent broadcast = new Intent(ConnectivityManager.ACTION_TETHER_STATE_CHANGED);
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broadcast.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING);
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broadcast.putStringArrayListExtra(ConnectivityManager.EXTRA_AVAILABLE_TETHER,
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availableList);
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broadcast.putStringArrayListExtra(ConnectivityManager.EXTRA_ACTIVE_TETHER, activeList);
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broadcast.putStringArrayListExtra(ConnectivityManager.EXTRA_ERRORED_TETHER,
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erroredList);
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mContext.sendStickyBroadcast(broadcast);
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Log.d(TAG, "sendTetherStateChangedBroadcast " + availableList.size() + ", " +
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activeList.size() + ", " + erroredList.size());
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if (usbTethered) {
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if (wifiTethered) {
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showTetheredNotification(com.android.internal.R.drawable.stat_sys_tether_general);
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} else {
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showTetheredNotification(com.android.internal.R.drawable.stat_sys_tether_usb);
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}
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} else if (wifiTethered) {
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showTetheredNotification(com.android.internal.R.drawable.stat_sys_tether_wifi);
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} else {
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clearTetheredNotification();
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}
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}
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private void showTetheredNotification(int icon) {
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NotificationManager notificationManager =
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(NotificationManager)mContext.getSystemService(Context.NOTIFICATION_SERVICE);
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if (notificationManager == null) {
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return;
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}
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Intent intent = new Intent();
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intent.setClassName("com.android.settings", "com.android.settings.TetherSettings");
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intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
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PendingIntent pi = PendingIntent.getActivity(mContext, 0, intent, 0);
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Resources r = Resources.getSystem();
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CharSequence title = r.getText(com.android.internal.R.string.tethered_notification_title);
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CharSequence message = r.getText(com.android.internal.R.string.
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tethered_notification_message);
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if(mTetheredNotification == null) {
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mTetheredNotification = new Notification();
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mTetheredNotification.when = 0;
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}
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mTetheredNotification.icon = icon;
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mTetheredNotification.defaults &= ~Notification.DEFAULT_SOUND;
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mTetheredNotification.flags = Notification.FLAG_ONGOING_EVENT;
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mTetheredNotification.tickerText = title;
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mTetheredNotification.setLatestEventInfo(mContext, title, message, pi);
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notificationManager.notify(mTetheredNotification.icon, mTetheredNotification);
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}
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private void clearTetheredNotification() {
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NotificationManager notificationManager =
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(NotificationManager)mContext.getSystemService(Context.NOTIFICATION_SERVICE);
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if (notificationManager != null && mTetheredNotification != null) {
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notificationManager.cancel(mTetheredNotification.icon);
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mTetheredNotification = null;
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}
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}
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private void updateUsbStatus() {
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boolean enable = mUsbConnected && mUsbMassStorageOff;
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if (mBooted) {
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enableUsbIfaces(enable);
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}
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}
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private class StateReceiver extends BroadcastReceiver {
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public void onReceive(Context content, Intent intent) {
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String action = intent.getAction();
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if (action.equals(Intent.ACTION_BATTERY_CHANGED)) {
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mUsbConnected = (intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1)
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== BatteryManager.BATTERY_PLUGGED_USB);
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Tethering.this.updateUsbStatus();
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} else if (action.equals(Intent.ACTION_MEDIA_SHARED)) {
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mUsbMassStorageOff = false;
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updateUsbStatus();
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}
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else if (action.equals(Intent.ACTION_MEDIA_UNSHARED)) {
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mUsbMassStorageOff = true;
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updateUsbStatus();
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} else if (action.equals(ConnectivityManager.CONNECTIVITY_ACTION)) {
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IBinder b = ServiceManager.getService(Context.CONNECTIVITY_SERVICE);
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IConnectivityManager service = IConnectivityManager.Stub.asInterface(b);
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try {
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int netType = (mUseHiPri ? ConnectivityManager.TYPE_MOBILE_HIPRI:
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ConnectivityManager.TYPE_MOBILE_DUN);
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NetworkInfo info = service.getNetworkInfo(netType);
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int msg;
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if (info != null && info.isConnected() == true) {
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msg = TetherMasterSM.CMD_CELL_DUN_ENABLED;
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} else {
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msg = TetherMasterSM.CMD_CELL_DUN_DISABLED;
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}
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mTetherMasterSM.sendMessage(mTetherMasterSM.obtainMessage(msg));
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} catch (RemoteException e) {}
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} else if (action.equals(Intent.ACTION_BOOT_COMPLETED)) {
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mBooted = true;
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updateUsbStatus();
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}
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}
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}
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// used on cable insert/remove
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private void enableUsbIfaces(boolean enable) {
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IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE);
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INetworkManagementService service = INetworkManagementService.Stub.asInterface(b);
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String[] ifaces = new String[0];
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try {
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ifaces = service.listInterfaces();
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} catch (Exception e) {
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Log.e(TAG, "Error listing Interfaces :" + e);
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return;
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}
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for (String iface : ifaces) {
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if (isUsb(iface)) {
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if (enable) {
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interfaceAdded(iface);
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} else {
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interfaceRemoved(iface);
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}
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}
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}
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}
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// toggled when we enter/leave the fully teathered state
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private boolean enableUsbRndis(boolean enabled) {
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Log.d(TAG, "enableUsbRndis(" + enabled + ")");
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IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE);
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INetworkManagementService service = INetworkManagementService.Stub.asInterface(b);
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try {
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if (enabled) {
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synchronized (this) {
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if (!service.isUsbRNDISStarted()) {
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service.startUsbRNDIS();
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}
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}
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} else {
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if (service.isUsbRNDISStarted()) {
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service.stopUsbRNDIS();
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}
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}
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} catch (Exception e) {
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Log.e(TAG, "Error toggling usb RNDIS :" + e);
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|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// configured when we start tethering and unconfig'd on error or conclusion
|
|
private boolean configureUsbIface(boolean enabled) {
|
|
Log.d(TAG, "configureUsbIface(" + enabled + ")");
|
|
|
|
IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE);
|
|
INetworkManagementService service = INetworkManagementService.Stub.asInterface(b);
|
|
|
|
// bring toggle the interfaces
|
|
String[] ifaces = new String[0];
|
|
try {
|
|
ifaces = service.listInterfaces();
|
|
} catch (Exception e) {
|
|
Log.e(TAG, "Error listing Interfaces :" + e);
|
|
return false;
|
|
}
|
|
for (String iface : ifaces) {
|
|
if (isUsb(iface)) {
|
|
InterfaceConfiguration ifcg = null;
|
|
try {
|
|
ifcg = service.getInterfaceConfig(iface);
|
|
if (ifcg != null) {
|
|
ifcg.ipAddr = (169 << 24) + (254 << 16) + (2 << 8) + 1;
|
|
ifcg.netmask = (255 << 24) + (255 << 16) + (255 << 8) + 0;
|
|
if (enabled) {
|
|
ifcg.interfaceFlags = ifcg.interfaceFlags.replace("down", "up");
|
|
} else {
|
|
ifcg.interfaceFlags = ifcg.interfaceFlags.replace("up", "down");
|
|
}
|
|
ifcg.interfaceFlags = ifcg.interfaceFlags.replace("running", "");
|
|
ifcg.interfaceFlags = ifcg.interfaceFlags.replace(" "," ");
|
|
service.setInterfaceConfig(iface, ifcg);
|
|
}
|
|
} catch (Exception e) {
|
|
Log.e(TAG, "Error configuring interface " + iface + ", :" + e);
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
public String[] getTetherableUsbRegexs() {
|
|
return mTetherableUsbRegexs;
|
|
}
|
|
|
|
public String[] getTetherableWifiRegexs() {
|
|
return mTetherableWifiRegexs;
|
|
}
|
|
|
|
public String[] getUpstreamIfaceRegexs() {
|
|
return mUpstreamIfaceRegexs;
|
|
}
|
|
|
|
public boolean isDunRequired() {
|
|
return mDunRequired;
|
|
}
|
|
|
|
public String[] getTetheredIfaces() {
|
|
ArrayList<String> list = new ArrayList<String>();
|
|
synchronized (mIfaces) {
|
|
Set keys = mIfaces.keySet();
|
|
for (Object key : keys) {
|
|
TetherInterfaceSM sm = mIfaces.get(key);
|
|
if (sm.isTethered()) {
|
|
list.add((String)key);
|
|
}
|
|
}
|
|
}
|
|
String[] retVal = new String[list.size()];
|
|
for (int i=0; i < list.size(); i++) {
|
|
retVal[i] = list.get(i);
|
|
}
|
|
return retVal;
|
|
}
|
|
|
|
public String[] getTetherableIfaces() {
|
|
ArrayList<String> list = new ArrayList<String>();
|
|
synchronized (mIfaces) {
|
|
Set keys = mIfaces.keySet();
|
|
for (Object key : keys) {
|
|
TetherInterfaceSM sm = mIfaces.get(key);
|
|
if (sm.isAvailable()) {
|
|
list.add((String)key);
|
|
}
|
|
}
|
|
}
|
|
String[] retVal = new String[list.size()];
|
|
for (int i=0; i < list.size(); i++) {
|
|
retVal[i] = list.get(i);
|
|
}
|
|
return retVal;
|
|
}
|
|
|
|
public String[] getErroredIfaces() {
|
|
ArrayList<String> list = new ArrayList<String>();
|
|
synchronized (mIfaces) {
|
|
Set keys = mIfaces.keySet();
|
|
for (Object key : keys) {
|
|
TetherInterfaceSM sm = mIfaces.get(key);
|
|
if (sm.isErrored()) {
|
|
list.add((String)key);
|
|
}
|
|
}
|
|
}
|
|
String[] retVal = new String[list.size()];
|
|
for (int i= 0; i< list.size(); i++) {
|
|
retVal[i] = list.get(i);
|
|
}
|
|
return retVal;
|
|
}
|
|
|
|
|
|
class TetherInterfaceSM extends HierarchicalStateMachine {
|
|
// notification from the master SM that it's in tether mode
|
|
static final int CMD_TETHER_MODE_ALIVE = 1;
|
|
// notification from the master SM that it's not in tether mode
|
|
static final int CMD_TETHER_MODE_DEAD = 2;
|
|
// request from the user that it wants to tether
|
|
static final int CMD_TETHER_REQUESTED = 3;
|
|
// request from the user that it wants to untether
|
|
static final int CMD_TETHER_UNREQUESTED = 4;
|
|
// notification that this interface is down
|
|
static final int CMD_INTERFACE_DOWN = 5;
|
|
// notification that this interface is up
|
|
static final int CMD_INTERFACE_UP = 6;
|
|
// notification from the master SM that it had an error turning on cellular dun
|
|
static final int CMD_CELL_DUN_ERROR = 10;
|
|
// notification from the master SM that it had trouble enabling IP Forwarding
|
|
static final int CMD_IP_FORWARDING_ENABLE_ERROR = 11;
|
|
// notification from the master SM that it had trouble disabling IP Forwarding
|
|
static final int CMD_IP_FORWARDING_DISABLE_ERROR = 12;
|
|
// notification from the master SM that it had trouble staring tethering
|
|
static final int CMD_START_TETHERING_ERROR = 13;
|
|
// notification from the master SM that it had trouble stopping tethering
|
|
static final int CMD_STOP_TETHERING_ERROR = 14;
|
|
// notification from the master SM that it had trouble setting the DNS forwarders
|
|
static final int CMD_SET_DNS_FORWARDERS_ERROR = 15;
|
|
// a mechanism to transition self to another state from an enter function
|
|
static final int CMD_TRANSITION_TO_STATE = 16;
|
|
|
|
private HierarchicalState mDefaultState;
|
|
|
|
private HierarchicalState mInitialState;
|
|
private HierarchicalState mStartingState;
|
|
private HierarchicalState mTetheredState;
|
|
|
|
private HierarchicalState mUnavailableState;
|
|
|
|
private boolean mAvailable;
|
|
private boolean mTethered;
|
|
int mLastError;
|
|
|
|
String mIfaceName;
|
|
boolean mUsb;
|
|
|
|
TetherInterfaceSM(String name, boolean usb) {
|
|
super(name);
|
|
mIfaceName = name;
|
|
mUsb = usb;
|
|
setLastError(ConnectivityManager.TETHER_ERROR_NO_ERROR);
|
|
|
|
mInitialState = new InitialState();
|
|
addState(mInitialState);
|
|
mStartingState = new StartingState();
|
|
addState(mStartingState);
|
|
mTetheredState = new TetheredState();
|
|
addState(mTetheredState);
|
|
mUnavailableState = new UnavailableState();
|
|
addState(mUnavailableState);
|
|
|
|
setInitialState(mInitialState);
|
|
}
|
|
|
|
public String toString() {
|
|
String res = new String();
|
|
res += mIfaceName + " - ";
|
|
HierarchicalState current = getCurrentState();
|
|
if (current == mInitialState) res += "InitialState";
|
|
if (current == mStartingState) res += "StartingState";
|
|
if (current == mTetheredState) res += "TetheredState";
|
|
if (current == mUnavailableState) res += "UnavailableState";
|
|
if (mAvailable) res += " - Available";
|
|
if (mTethered) res += " - Tethered";
|
|
res += " - lastError =" + mLastError;
|
|
return res;
|
|
}
|
|
|
|
public synchronized int getLastError() {
|
|
return mLastError;
|
|
}
|
|
|
|
private synchronized void setLastError(int error) {
|
|
mLastError = error;
|
|
|
|
if (isErrored()) {
|
|
if (mUsb) {
|
|
// note everything's been unwound by this point so nothing to do on
|
|
// further error..
|
|
Tethering.this.configureUsbIface(false);
|
|
}
|
|
}
|
|
}
|
|
|
|
// synchronized between this getter and the following setter
|
|
public synchronized boolean isAvailable() {
|
|
return mAvailable;
|
|
}
|
|
|
|
private synchronized void setAvailable(boolean available) {
|
|
mAvailable = available;
|
|
}
|
|
|
|
// synchronized between this getter and the following setter
|
|
public synchronized boolean isTethered() {
|
|
return mTethered;
|
|
}
|
|
|
|
private synchronized void setTethered(boolean tethered) {
|
|
mTethered = tethered;
|
|
}
|
|
|
|
// synchronized between this getter and the following setter
|
|
public synchronized boolean isErrored() {
|
|
return (mLastError != ConnectivityManager.TETHER_ERROR_NO_ERROR);
|
|
}
|
|
|
|
class InitialState extends HierarchicalState {
|
|
@Override
|
|
public void enter() {
|
|
setAvailable(true);
|
|
setTethered(false);
|
|
sendTetherStateChangedBroadcast();
|
|
}
|
|
|
|
@Override
|
|
public boolean processMessage(Message message) {
|
|
Log.d(TAG, "InitialState.processMessage what=" + message.what);
|
|
boolean retValue = true;
|
|
switch (message.what) {
|
|
case CMD_TETHER_REQUESTED:
|
|
setLastError(ConnectivityManager.TETHER_ERROR_NO_ERROR);
|
|
Message m = mTetherMasterSM.obtainMessage(
|
|
TetherMasterSM.CMD_TETHER_MODE_REQUESTED);
|
|
m.obj = TetherInterfaceSM.this;
|
|
mTetherMasterSM.sendMessage(m);
|
|
transitionTo(mStartingState);
|
|
break;
|
|
case CMD_INTERFACE_DOWN:
|
|
transitionTo(mUnavailableState);
|
|
break;
|
|
default:
|
|
retValue = false;
|
|
break;
|
|
}
|
|
return retValue;
|
|
}
|
|
}
|
|
|
|
class StartingState extends HierarchicalState {
|
|
@Override
|
|
public void enter() {
|
|
setAvailable(false);
|
|
if (mUsb) {
|
|
if (!Tethering.this.configureUsbIface(true)) {
|
|
Message m = mTetherMasterSM.obtainMessage(
|
|
TetherMasterSM.CMD_TETHER_MODE_UNREQUESTED);
|
|
m.obj = TetherInterfaceSM.this;
|
|
mTetherMasterSM.sendMessage(m);
|
|
|
|
setLastError(ConnectivityManager.TETHER_ERROR_IFACE_CFG_ERROR);
|
|
|
|
m = obtainMessage(CMD_TRANSITION_TO_STATE);
|
|
m.obj = mInitialState;
|
|
sendMessageAtFrontOfQueue(m);
|
|
return;
|
|
}
|
|
}
|
|
sendTetherStateChangedBroadcast();
|
|
}
|
|
@Override
|
|
public boolean processMessage(Message message) {
|
|
Log.d(TAG, "StartingState.processMessage what=" + message.what);
|
|
boolean retValue = true;
|
|
switch (message.what) {
|
|
// maybe a parent class?
|
|
case CMD_TETHER_UNREQUESTED:
|
|
Message m = mTetherMasterSM.obtainMessage(
|
|
TetherMasterSM.CMD_TETHER_MODE_UNREQUESTED);
|
|
m.obj = TetherInterfaceSM.this;
|
|
mTetherMasterSM.sendMessage(m);
|
|
if (mUsb) {
|
|
if (!Tethering.this.configureUsbIface(false)) {
|
|
setLastErrorAndTransitionToInitialState(
|
|
ConnectivityManager.TETHER_ERROR_IFACE_CFG_ERROR);
|
|
break;
|
|
}
|
|
}
|
|
transitionTo(mInitialState);
|
|
break;
|
|
case CMD_TETHER_MODE_ALIVE:
|
|
transitionTo(mTetheredState);
|
|
break;
|
|
case CMD_CELL_DUN_ERROR:
|
|
case CMD_IP_FORWARDING_ENABLE_ERROR:
|
|
case CMD_IP_FORWARDING_DISABLE_ERROR:
|
|
case CMD_START_TETHERING_ERROR:
|
|
case CMD_STOP_TETHERING_ERROR:
|
|
case CMD_SET_DNS_FORWARDERS_ERROR:
|
|
setLastErrorAndTransitionToInitialState(
|
|
ConnectivityManager.TETHER_ERROR_MASTER_ERROR);
|
|
break;
|
|
case CMD_INTERFACE_DOWN:
|
|
m = mTetherMasterSM.obtainMessage(
|
|
TetherMasterSM.CMD_TETHER_MODE_UNREQUESTED);
|
|
m.obj = TetherInterfaceSM.this;
|
|
mTetherMasterSM.sendMessage(m);
|
|
transitionTo(mUnavailableState);
|
|
break;
|
|
case CMD_TRANSITION_TO_STATE:
|
|
HierarchicalState s = (HierarchicalState)(message.obj);
|
|
transitionTo(s);
|
|
break;
|
|
default:
|
|
retValue = false;
|
|
}
|
|
return retValue;
|
|
}
|
|
}
|
|
|
|
class TetheredState extends HierarchicalState {
|
|
@Override
|
|
public void enter() {
|
|
IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE);
|
|
INetworkManagementService service =
|
|
INetworkManagementService.Stub.asInterface(b);
|
|
try {
|
|
service.tetherInterface(mIfaceName);
|
|
} catch (Exception e) {
|
|
setLastError(ConnectivityManager.TETHER_ERROR_TETHER_IFACE_ERROR);
|
|
|
|
Message m = obtainMessage(CMD_TRANSITION_TO_STATE);
|
|
m.obj = mInitialState;
|
|
sendMessageAtFrontOfQueue(m);
|
|
return;
|
|
}
|
|
try {
|
|
service.enableNat(mIfaceName, mUpstreamIfaceName);
|
|
} catch (Exception e) {
|
|
try {
|
|
service.untetherInterface(mIfaceName);
|
|
} catch (Exception ee) {}
|
|
|
|
setLastError(ConnectivityManager.TETHER_ERROR_ENABLE_NAT_ERROR);
|
|
|
|
Message m = obtainMessage(CMD_TRANSITION_TO_STATE);
|
|
m.obj = mInitialState;
|
|
sendMessageAtFrontOfQueue(m);
|
|
return;
|
|
}
|
|
if (mUsb) Tethering.this.enableUsbRndis(true);
|
|
Log.d(TAG, "Tethered " + mIfaceName);
|
|
setAvailable(false);
|
|
setTethered(true);
|
|
sendTetherStateChangedBroadcast();
|
|
}
|
|
@Override
|
|
public void exit() {
|
|
if (mUsb) Tethering.this.enableUsbRndis(false);
|
|
}
|
|
@Override
|
|
public boolean processMessage(Message message) {
|
|
Log.d(TAG, "TetheredState.processMessage what=" + message.what);
|
|
boolean retValue = true;
|
|
boolean error = false;
|
|
switch (message.what) {
|
|
case CMD_TETHER_UNREQUESTED:
|
|
case CMD_INTERFACE_DOWN:
|
|
IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE);
|
|
INetworkManagementService service =
|
|
INetworkManagementService.Stub.asInterface(b);
|
|
try {
|
|
service.disableNat(mIfaceName, mUpstreamIfaceName);
|
|
} catch (Exception e) {
|
|
try {
|
|
service.untetherInterface(mIfaceName);
|
|
} catch (Exception ee) {}
|
|
|
|
setLastErrorAndTransitionToInitialState(
|
|
ConnectivityManager.TETHER_ERROR_DISABLE_NAT_ERROR);
|
|
break;
|
|
}
|
|
try {
|
|
service.untetherInterface(mIfaceName);
|
|
} catch (Exception e) {
|
|
setLastErrorAndTransitionToInitialState(
|
|
ConnectivityManager.TETHER_ERROR_UNTETHER_IFACE_ERROR);
|
|
break;
|
|
}
|
|
Message m = mTetherMasterSM.obtainMessage(
|
|
TetherMasterSM.CMD_TETHER_MODE_UNREQUESTED);
|
|
m.obj = TetherInterfaceSM.this;
|
|
mTetherMasterSM.sendMessage(m);
|
|
if (message.what == CMD_TETHER_UNREQUESTED) {
|
|
if (mUsb) {
|
|
if (!Tethering.this.configureUsbIface(false)) {
|
|
setLastError(
|
|
ConnectivityManager.TETHER_ERROR_IFACE_CFG_ERROR);
|
|
}
|
|
}
|
|
transitionTo(mInitialState);
|
|
} else if (message.what == CMD_INTERFACE_DOWN) {
|
|
transitionTo(mUnavailableState);
|
|
}
|
|
Log.d(TAG, "Untethered " + mIfaceName);
|
|
break;
|
|
case CMD_CELL_DUN_ERROR:
|
|
case CMD_IP_FORWARDING_ENABLE_ERROR:
|
|
case CMD_IP_FORWARDING_DISABLE_ERROR:
|
|
case CMD_START_TETHERING_ERROR:
|
|
case CMD_STOP_TETHERING_ERROR:
|
|
case CMD_SET_DNS_FORWARDERS_ERROR:
|
|
error = true;
|
|
// fall through
|
|
case CMD_TETHER_MODE_DEAD:
|
|
b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE);
|
|
service = INetworkManagementService.Stub.asInterface(b);
|
|
try {
|
|
service.disableNat(mIfaceName, mUpstreamIfaceName);
|
|
} catch (Exception e) {
|
|
try {
|
|
service.untetherInterface(mIfaceName);
|
|
} catch (Exception ee) {}
|
|
|
|
setLastErrorAndTransitionToInitialState(
|
|
ConnectivityManager.TETHER_ERROR_DISABLE_NAT_ERROR);
|
|
break;
|
|
}
|
|
try {
|
|
service.untetherInterface(mIfaceName);
|
|
} catch (Exception e) {
|
|
setLastErrorAndTransitionToInitialState(
|
|
ConnectivityManager.TETHER_ERROR_UNTETHER_IFACE_ERROR);
|
|
break;
|
|
}
|
|
if (error) {
|
|
setLastErrorAndTransitionToInitialState(
|
|
ConnectivityManager.TETHER_ERROR_MASTER_ERROR);
|
|
break;
|
|
}
|
|
Log.d(TAG, "Tether lost upstream connection " + mIfaceName);
|
|
sendTetherStateChangedBroadcast();
|
|
if (mUsb) {
|
|
if (!Tethering.this.configureUsbIface(false)) {
|
|
setLastError(ConnectivityManager.TETHER_ERROR_IFACE_CFG_ERROR);
|
|
}
|
|
}
|
|
transitionTo(mInitialState);
|
|
break;
|
|
case CMD_TRANSITION_TO_STATE:
|
|
HierarchicalState s = (HierarchicalState)(message.obj);
|
|
transitionTo(s);
|
|
break;
|
|
default:
|
|
retValue = false;
|
|
break;
|
|
}
|
|
return retValue;
|
|
}
|
|
}
|
|
|
|
class UnavailableState extends HierarchicalState {
|
|
@Override
|
|
public void enter() {
|
|
setAvailable(false);
|
|
setLastError(ConnectivityManager.TETHER_ERROR_NO_ERROR);
|
|
setTethered(false);
|
|
sendTetherStateChangedBroadcast();
|
|
}
|
|
@Override
|
|
public boolean processMessage(Message message) {
|
|
boolean retValue = true;
|
|
switch (message.what) {
|
|
case CMD_INTERFACE_UP:
|
|
transitionTo(mInitialState);
|
|
break;
|
|
default:
|
|
retValue = false;
|
|
break;
|
|
}
|
|
return retValue;
|
|
}
|
|
}
|
|
|
|
void setLastErrorAndTransitionToInitialState(int error) {
|
|
setLastError(error);
|
|
transitionTo(mInitialState);
|
|
}
|
|
|
|
}
|
|
|
|
class TetherMasterSM extends HierarchicalStateMachine {
|
|
// an interface SM has requested Tethering
|
|
static final int CMD_TETHER_MODE_REQUESTED = 1;
|
|
// an interface SM has unrequested Tethering
|
|
static final int CMD_TETHER_MODE_UNREQUESTED = 2;
|
|
// we received notice that the cellular DUN connection is up
|
|
static final int CMD_CELL_DUN_ENABLED = 3;
|
|
// we received notice that the cellular DUN connection is down
|
|
static final int CMD_CELL_DUN_DISABLED = 4;
|
|
// we timed out on a cellular DUN toggle
|
|
static final int CMD_CELL_DUN_TIMEOUT = 5;
|
|
// it's time to renew our cellular DUN reservation
|
|
static final int CMD_CELL_DUN_RENEW = 6;
|
|
|
|
// This indicates what a timeout event relates to. A state that
|
|
// sends itself a delayed timeout event and handles incoming timeout events
|
|
// should inc this when it is entered and whenever it sends a new timeout event.
|
|
// We do not flush the old ones.
|
|
private int mSequenceNumber;
|
|
|
|
private HierarchicalState mInitialState;
|
|
private HierarchicalState mCellDunRequestedState;
|
|
private HierarchicalState mCellDunAliveState;
|
|
private HierarchicalState mTetherModeAliveState;
|
|
|
|
private HierarchicalState mCellDunErrorState;
|
|
private HierarchicalState mSetIpForwardingEnabledErrorState;
|
|
private HierarchicalState mSetIpForwardingDisabledErrorState;
|
|
private HierarchicalState mStartTetheringErrorState;
|
|
private HierarchicalState mStopTetheringErrorState;
|
|
private HierarchicalState mSetDnsForwardersErrorState;
|
|
|
|
private ArrayList mNotifyList;
|
|
|
|
|
|
private static final int CELL_DUN_TIMEOUT_MS = 45000;
|
|
private static final int CELL_DISABLE_DUN_TIMEOUT_MS = 3000;
|
|
private static final int CELL_DUN_RENEW_MS = 40000;
|
|
|
|
TetherMasterSM(String name) {
|
|
super(name);
|
|
|
|
//Add states
|
|
mInitialState = new InitialState();
|
|
addState(mInitialState);
|
|
mCellDunRequestedState = new CellDunRequestedState();
|
|
addState(mCellDunRequestedState);
|
|
mCellDunAliveState = new CellDunAliveState();
|
|
addState(mCellDunAliveState);
|
|
mTetherModeAliveState = new TetherModeAliveState();
|
|
addState(mTetherModeAliveState);
|
|
|
|
mCellDunErrorState = new CellDunErrorState();
|
|
addState(mCellDunErrorState);
|
|
mSetIpForwardingEnabledErrorState = new SetIpForwardingEnabledErrorState();
|
|
addState(mSetIpForwardingEnabledErrorState);
|
|
mSetIpForwardingDisabledErrorState = new SetIpForwardingDisabledErrorState();
|
|
addState(mSetIpForwardingDisabledErrorState);
|
|
mStartTetheringErrorState = new StartTetheringErrorState();
|
|
addState(mStartTetheringErrorState);
|
|
mStopTetheringErrorState = new StopTetheringErrorState();
|
|
addState(mStopTetheringErrorState);
|
|
mSetDnsForwardersErrorState = new SetDnsForwardersErrorState();
|
|
addState(mSetDnsForwardersErrorState);
|
|
|
|
mNotifyList = new ArrayList();
|
|
|
|
setInitialState(mInitialState);
|
|
}
|
|
|
|
class TetherMasterUtilState extends HierarchicalState {
|
|
@Override
|
|
public boolean processMessage(Message m) {
|
|
return false;
|
|
}
|
|
public int turnOnMobileDun() {
|
|
IBinder b = ServiceManager.getService(Context.CONNECTIVITY_SERVICE);
|
|
IConnectivityManager service = IConnectivityManager.Stub.asInterface(b);
|
|
int retValue = Phone.APN_REQUEST_FAILED;
|
|
try {
|
|
retValue = service.startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE,
|
|
(mUseHiPri ? Phone.FEATURE_ENABLE_HIPRI : Phone.FEATURE_ENABLE_DUN),
|
|
new Binder());
|
|
} catch (Exception e) {
|
|
}
|
|
return retValue;
|
|
}
|
|
public boolean turnOffMobileDun() {
|
|
IBinder b = ServiceManager.getService(Context.CONNECTIVITY_SERVICE);
|
|
IConnectivityManager service =
|
|
IConnectivityManager.Stub.asInterface(b);
|
|
try {
|
|
service.stopUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE,
|
|
(mUseHiPri ? Phone.FEATURE_ENABLE_HIPRI : Phone.FEATURE_ENABLE_DUN));
|
|
} catch (Exception e) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
public boolean turnOnMasterTetherSettings() {
|
|
IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE);
|
|
INetworkManagementService service =
|
|
INetworkManagementService.Stub.asInterface(b);
|
|
try {
|
|
service.setIpForwardingEnabled(true);
|
|
} catch (Exception e) {
|
|
transitionTo(mSetIpForwardingEnabledErrorState);
|
|
return false;
|
|
}
|
|
try {
|
|
service.startTethering(mDhcpRange[0], mDhcpRange[1]);
|
|
} catch (Exception e) {
|
|
transitionTo(mStartTetheringErrorState);
|
|
return false;
|
|
}
|
|
try {
|
|
service.setDnsForwarders(mDnsServers);
|
|
} catch (Exception e) {
|
|
transitionTo(mSetDnsForwardersErrorState);
|
|
return false;
|
|
}
|
|
transitionTo(mTetherModeAliveState);
|
|
return true;
|
|
}
|
|
public boolean turnOffMasterTetherSettings() {
|
|
IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE);
|
|
INetworkManagementService service =
|
|
INetworkManagementService.Stub.asInterface(b);
|
|
try {
|
|
service.stopTethering();
|
|
} catch (Exception e) {
|
|
transitionTo(mStopTetheringErrorState);
|
|
return false;
|
|
}
|
|
try {
|
|
service.setIpForwardingEnabled(false);
|
|
} catch (Exception e) {
|
|
transitionTo(mSetIpForwardingDisabledErrorState);
|
|
return false;
|
|
}
|
|
transitionTo(mInitialState);
|
|
return true;
|
|
}
|
|
public String findActiveUpstreamIface() {
|
|
// check for what iface we can use - if none found switch to error.
|
|
IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE);
|
|
INetworkManagementService service = INetworkManagementService.Stub.asInterface(b);
|
|
|
|
String[] ifaces = new String[0];
|
|
try {
|
|
ifaces = service.listInterfaces();
|
|
} catch (Exception e) {
|
|
Log.e(TAG, "Error listing Interfaces :" + e);
|
|
return null;
|
|
}
|
|
for (String iface : ifaces) {
|
|
for (String regex : mUpstreamIfaceRegexs) {
|
|
if (iface.matches(regex)) {
|
|
// verify it is up!
|
|
InterfaceConfiguration ifcg = null;
|
|
try {
|
|
ifcg = service.getInterfaceConfig(iface);
|
|
} catch (Exception e) {
|
|
Log.e(TAG, "Error getting iface config :" + e);
|
|
// ignore - try next
|
|
continue;
|
|
}
|
|
if (ifcg.interfaceFlags.contains("up")) {
|
|
return iface;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
}
|
|
|
|
class InitialState extends TetherMasterUtilState {
|
|
@Override
|
|
public void enter() {
|
|
mUseHiPri = false;
|
|
}
|
|
@Override
|
|
public boolean processMessage(Message message) {
|
|
Log.d(TAG, "MasterInitialState.processMessage what=" + message.what);
|
|
boolean retValue = true;
|
|
switch (message.what) {
|
|
case CMD_TETHER_MODE_REQUESTED:
|
|
TetherInterfaceSM who = (TetherInterfaceSM)message.obj;
|
|
Log.d(TAG, "Tether Mode requested by " + who.toString());
|
|
mNotifyList.add(who);
|
|
transitionTo(mCellDunRequestedState);
|
|
break;
|
|
case CMD_TETHER_MODE_UNREQUESTED:
|
|
who = (TetherInterfaceSM)message.obj;
|
|
Log.d(TAG, "Tether Mode unrequested by " + who.toString());
|
|
int index = mNotifyList.indexOf(who);
|
|
if (index != -1) {
|
|
mNotifyList.remove(who);
|
|
}
|
|
break;
|
|
case CMD_CELL_DUN_ENABLED:
|
|
transitionTo(mCellDunAliveState);
|
|
break;
|
|
default:
|
|
retValue = false;
|
|
break;
|
|
}
|
|
return retValue;
|
|
}
|
|
}
|
|
class CellDunRequestedState extends TetherMasterUtilState {
|
|
@Override
|
|
public void enter() {
|
|
mUseHiPri = (findActiveUpstreamIface() == null && !mDunRequired);
|
|
if (mDunRequired || mUseHiPri) {
|
|
++mSequenceNumber;
|
|
int result = turnOnMobileDun();
|
|
switch (result) {
|
|
case Phone.APN_ALREADY_ACTIVE:
|
|
Log.d(TAG, "Dun already active");
|
|
sendMessage(obtainMessage(CMD_CELL_DUN_ENABLED));
|
|
break;
|
|
case Phone.APN_REQUEST_FAILED:
|
|
case Phone.APN_TYPE_NOT_AVAILABLE:
|
|
Log.d(TAG, "Error bringing up Dun connection");
|
|
Message m = obtainMessage(CMD_CELL_DUN_TIMEOUT);
|
|
m.arg1 = mSequenceNumber;
|
|
sendMessage(m);
|
|
break;
|
|
case Phone.APN_REQUEST_STARTED:
|
|
Log.d(TAG, "Started bringing up Dun connection");
|
|
m = obtainMessage(CMD_CELL_DUN_TIMEOUT);
|
|
m.arg1 = mSequenceNumber;
|
|
sendMessageDelayed(m, CELL_DUN_TIMEOUT_MS);
|
|
break;
|
|
default:
|
|
Log.e(TAG, "Unknown return value from startUsingNetworkFeature " +
|
|
result);
|
|
}
|
|
} else {
|
|
Log.d(TAG, "no Dun Required. Skipping to Active");
|
|
sendMessage(obtainMessage(CMD_CELL_DUN_ENABLED));
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public boolean processMessage(Message message) {
|
|
Log.d(TAG, "CellDunRequestedState.processMessage what=" + message.what);
|
|
boolean retValue = true;
|
|
switch (message.what) {
|
|
case CMD_TETHER_MODE_REQUESTED:
|
|
TetherInterfaceSM who = (TetherInterfaceSM)message.obj;
|
|
mNotifyList.add(who);
|
|
break;
|
|
case CMD_TETHER_MODE_UNREQUESTED:
|
|
who = (TetherInterfaceSM)message.obj;
|
|
int index = mNotifyList.indexOf(who);
|
|
if (index != -1) {
|
|
mNotifyList.remove(index);
|
|
if (mNotifyList.isEmpty()) {
|
|
if (mDunRequired || mUseHiPri) {
|
|
turnOffMobileDun();
|
|
}
|
|
transitionTo(mInitialState);
|
|
}
|
|
}
|
|
break;
|
|
case CMD_CELL_DUN_ENABLED:
|
|
turnOnMasterTetherSettings();
|
|
break;
|
|
case CMD_CELL_DUN_DISABLED:
|
|
break;
|
|
case CMD_CELL_DUN_TIMEOUT:
|
|
if (message.arg1 == mSequenceNumber) {
|
|
transitionTo(mCellDunErrorState);
|
|
}
|
|
break;
|
|
default:
|
|
retValue = false;
|
|
break;
|
|
}
|
|
return retValue;
|
|
}
|
|
}
|
|
|
|
class CellDunAliveState extends TetherMasterUtilState {
|
|
@Override
|
|
public void enter() {
|
|
Log.d(TAG, "renewing Dun in " + CELL_DUN_RENEW_MS + "ms");
|
|
sendMessageDelayed(obtainMessage(CMD_CELL_DUN_RENEW), CELL_DUN_RENEW_MS);
|
|
}
|
|
|
|
@Override
|
|
public boolean processMessage(Message message) {
|
|
Log.d(TAG, "CellDunAliveState.processMessage what=" + message.what);
|
|
boolean retValue = true;
|
|
switch (message.what) {
|
|
case CMD_TETHER_MODE_REQUESTED:
|
|
TetherInterfaceSM who = (TetherInterfaceSM)message.obj;
|
|
mNotifyList.add(who);
|
|
turnOnMasterTetherSettings();
|
|
break;
|
|
case CMD_TETHER_MODE_UNREQUESTED:
|
|
who = (TetherInterfaceSM)message.obj;
|
|
int index = mNotifyList.indexOf(who);
|
|
if (index != -1) {
|
|
mNotifyList.remove(index);
|
|
if (mNotifyList.isEmpty()) {
|
|
if (mDunRequired || mUseHiPri) {
|
|
turnOffMobileDun();
|
|
}
|
|
transitionTo(mInitialState);
|
|
}
|
|
}
|
|
break;
|
|
case CMD_CELL_DUN_DISABLED:
|
|
transitionTo(mInitialState);
|
|
break;
|
|
case CMD_CELL_DUN_RENEW:
|
|
Log.d(TAG, "renewing dun connection - requeuing for another " +
|
|
CELL_DUN_RENEW_MS + "ms");
|
|
turnOnMobileDun();
|
|
sendMessageDelayed(obtainMessage(CMD_CELL_DUN_RENEW), CELL_DUN_RENEW_MS);
|
|
break;
|
|
default:
|
|
retValue = false;
|
|
break;
|
|
}
|
|
return retValue;
|
|
}
|
|
}
|
|
|
|
class TetherModeAliveState extends TetherMasterUtilState {
|
|
@Override
|
|
public void enter() {
|
|
if (mDunRequired || mUseHiPri) {
|
|
Log.d(TAG, "renewing Dun in " + CELL_DUN_RENEW_MS + "ms");
|
|
sendMessageDelayed(obtainMessage(CMD_CELL_DUN_RENEW), CELL_DUN_RENEW_MS);
|
|
}
|
|
mUpstreamIfaceName = findActiveUpstreamIface();
|
|
if (mUpstreamIfaceName == null) {
|
|
Log.d(TAG, "Erroring our of tether - no upstream ifaces available");
|
|
sendMessage(obtainMessage(CMD_CELL_DUN_DISABLED));
|
|
} else {
|
|
for (Object o : mNotifyList) {
|
|
TetherInterfaceSM sm = (TetherInterfaceSM)o;
|
|
sm.sendMessage(sm.obtainMessage(TetherInterfaceSM.CMD_TETHER_MODE_ALIVE));
|
|
}
|
|
}
|
|
}
|
|
@Override
|
|
public boolean processMessage(Message message) {
|
|
Log.d(TAG, "TetherModeAliveState.processMessage what=" + message.what);
|
|
boolean retValue = true;
|
|
switch (message.what) {
|
|
case CMD_TETHER_MODE_REQUESTED:
|
|
TetherInterfaceSM who = (TetherInterfaceSM)message.obj;
|
|
mNotifyList.add(who);
|
|
who.sendMessage(who.obtainMessage(TetherInterfaceSM.CMD_TETHER_MODE_ALIVE));
|
|
break;
|
|
case CMD_TETHER_MODE_UNREQUESTED:
|
|
who = (TetherInterfaceSM)message.obj;
|
|
int index = mNotifyList.indexOf(who);
|
|
if (index != -1) {
|
|
mNotifyList.remove(index);
|
|
if (mNotifyList.isEmpty()) {
|
|
if (mDunRequired || mUseHiPri) {
|
|
turnOffMobileDun();
|
|
}
|
|
turnOffMasterTetherSettings(); // transitions appropriately
|
|
mUpstreamIfaceName = null;
|
|
}
|
|
}
|
|
break;
|
|
case CMD_CELL_DUN_DISABLED:
|
|
int size = mNotifyList.size();
|
|
for (int i = 0; i < size; i++) {
|
|
TetherInterfaceSM sm = (TetherInterfaceSM)mNotifyList.get(i);
|
|
mNotifyList.remove(i);
|
|
sm.sendMessage(sm.obtainMessage(
|
|
TetherInterfaceSM.CMD_TETHER_MODE_DEAD));
|
|
}
|
|
turnOffMasterTetherSettings(); // transitions appropriately
|
|
mUpstreamIfaceName = null;
|
|
break;
|
|
case CMD_CELL_DUN_RENEW:
|
|
Log.d(TAG, "renewing dun connection - requeuing for another " +
|
|
CELL_DUN_RENEW_MS + "ms");
|
|
turnOnMobileDun();
|
|
sendMessageDelayed(obtainMessage(CMD_CELL_DUN_RENEW), CELL_DUN_RENEW_MS);
|
|
break;
|
|
default:
|
|
retValue = false;
|
|
break;
|
|
}
|
|
return retValue;
|
|
}
|
|
}
|
|
|
|
class ErrorState extends HierarchicalState {
|
|
int mErrorNotification;
|
|
@Override
|
|
public boolean processMessage(Message message) {
|
|
boolean retValue = true;
|
|
switch (message.what) {
|
|
case CMD_TETHER_MODE_REQUESTED:
|
|
TetherInterfaceSM who = (TetherInterfaceSM)message.obj;
|
|
who.sendMessage(who.obtainMessage(mErrorNotification));
|
|
break;
|
|
default:
|
|
retValue = false;
|
|
}
|
|
return retValue;
|
|
}
|
|
void notify(int msgType) {
|
|
mErrorNotification = msgType;
|
|
for (Object o : mNotifyList) {
|
|
TetherInterfaceSM sm = (TetherInterfaceSM)o;
|
|
sm.sendMessage(sm.obtainMessage(msgType));
|
|
}
|
|
}
|
|
|
|
}
|
|
class CellDunErrorState extends ErrorState {
|
|
@Override
|
|
public void enter() {
|
|
Log.e(TAG, "Error trying to enable Cell DUN");
|
|
notify(TetherInterfaceSM.CMD_CELL_DUN_ERROR);
|
|
}
|
|
}
|
|
|
|
class SetIpForwardingEnabledErrorState extends ErrorState {
|
|
@Override
|
|
public void enter() {
|
|
Log.e(TAG, "Error in setIpForwardingEnabled");
|
|
notify(TetherInterfaceSM.CMD_IP_FORWARDING_ENABLE_ERROR);
|
|
}
|
|
}
|
|
|
|
class SetIpForwardingDisabledErrorState extends ErrorState {
|
|
@Override
|
|
public void enter() {
|
|
Log.e(TAG, "Error in setIpForwardingDisabled");
|
|
notify(TetherInterfaceSM.CMD_IP_FORWARDING_DISABLE_ERROR);
|
|
}
|
|
}
|
|
|
|
class StartTetheringErrorState extends ErrorState {
|
|
@Override
|
|
public void enter() {
|
|
Log.e(TAG, "Error in startTethering");
|
|
notify(TetherInterfaceSM.CMD_START_TETHERING_ERROR);
|
|
IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE);
|
|
INetworkManagementService service =
|
|
INetworkManagementService.Stub.asInterface(b);
|
|
try {
|
|
service.setIpForwardingEnabled(false);
|
|
} catch (Exception e) {}
|
|
}
|
|
}
|
|
|
|
class StopTetheringErrorState extends ErrorState {
|
|
@Override
|
|
public void enter() {
|
|
Log.e(TAG, "Error in stopTethering");
|
|
notify(TetherInterfaceSM.CMD_STOP_TETHERING_ERROR);
|
|
IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE);
|
|
INetworkManagementService service =
|
|
INetworkManagementService.Stub.asInterface(b);
|
|
try {
|
|
service.setIpForwardingEnabled(false);
|
|
} catch (Exception e) {}
|
|
}
|
|
}
|
|
|
|
class SetDnsForwardersErrorState extends ErrorState {
|
|
@Override
|
|
public void enter() {
|
|
Log.e(TAG, "Error in setDnsForwarders");
|
|
notify(TetherInterfaceSM.CMD_SET_DNS_FORWARDERS_ERROR);
|
|
IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE);
|
|
INetworkManagementService service =
|
|
INetworkManagementService.Stub.asInterface(b);
|
|
try {
|
|
service.stopTethering();
|
|
} catch (Exception e) {}
|
|
try {
|
|
service.setIpForwardingEnabled(false);
|
|
} catch (Exception e) {}
|
|
}
|
|
}
|
|
}
|
|
|
|
public 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.Tether " +
|
|
"from from pid=" + Binder.getCallingPid() + ", uid=" +
|
|
Binder.getCallingUid());
|
|
return;
|
|
}
|
|
|
|
pw.println();
|
|
pw.println("Tether state:");
|
|
synchronized (mIfaces) {
|
|
for (Object o : mIfaces.values()) {
|
|
pw.println(" "+o.toString());
|
|
}
|
|
}
|
|
pw.println();
|
|
return;
|
|
}
|
|
}
|