25254db31a
Issue to be addressed: In radioRestart() method in CdmaDataConnectionTracker, if the radio is restarted right after cleaning up connection, it is possible that the connection setup request triggered by radio-on may happen before the connection cleanup has been completed so that the connection may not be set up correctly after the radio is restarted. The end result could be that the phone lost the data capability. The patch includes the following changes: 1) Add EVENT_RESTART_RADIO in DataConnectionTracker. 2) In CdmaDataConnectionTracker, method restartRadio(), send a message delayed by 20s, the purpose of which is to wait for connection cleanup to be completed, then to restart radio. 3) In CdmaDataConnectionTracker, method trySetupData(), don't try to setup data if there is pending message to restart radio. Addtional notes: A system property is not used to config the delayed timer because we think this fix is to address the unusual error case and waiting for long time should not impact user experience much. 12s is the longest time to complete the data cleanup as we have seen so far, so we are using a 20s timer.
507 lines
18 KiB
Java
507 lines
18 KiB
Java
/*
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* Copyright (C) 2006 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.internal.telephony;
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import android.app.PendingIntent;
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import android.os.AsyncResult;
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import android.os.Handler;
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import android.os.INetStatService;
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import android.os.Message;
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import android.os.RemoteException;
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import android.provider.Settings;
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import android.provider.Settings.SettingNotFoundException;
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import android.text.TextUtils;
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import android.util.Log;
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import java.util.ArrayList;
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/**
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* {@hide}
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*
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*/
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public abstract class DataConnectionTracker extends Handler {
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protected static final boolean DBG = true;
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protected final String LOG_TAG = "DataConnectionTracker";
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/**
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* IDLE: ready to start data connection setup, default state
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* INITING: state of issued setupDefaultPDP() but not finish yet
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* CONNECTING: state of issued startPppd() but not finish yet
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* SCANNING: data connection fails with one apn but other apns are available
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* ready to start data connection on other apns (before INITING)
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* CONNECTED: IP connection is setup
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* DISCONNECTING: Connection.disconnect() has been called, but PDP
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* context is not yet deactivated
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* FAILED: data connection fail for all apns settings
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*
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* getDataConnectionState() maps State to DataState
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* FAILED or IDLE : DISCONNECTED
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* INITING or CONNECTING or SCANNING: CONNECTING
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* CONNECTED : CONNECTED or DISCONNECTING
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*/
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public enum State {
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IDLE,
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INITING,
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CONNECTING,
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SCANNING,
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CONNECTED,
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DISCONNECTING,
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FAILED
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}
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public enum Activity {
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NONE,
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DATAIN,
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DATAOUT,
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DATAINANDOUT,
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DORMANT
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}
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//***** Event Codes
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protected static final int EVENT_DATA_SETUP_COMPLETE = 1;
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protected static final int EVENT_RADIO_AVAILABLE = 3;
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protected static final int EVENT_RECORDS_LOADED = 4;
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protected static final int EVENT_TRY_SETUP_DATA = 5;
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protected static final int EVENT_DATA_STATE_CHANGED = 6;
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protected static final int EVENT_POLL_PDP = 7;
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protected static final int EVENT_GET_PDP_LIST_COMPLETE = 11;
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protected static final int EVENT_RADIO_OFF_OR_NOT_AVAILABLE = 12;
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protected static final int EVENT_VOICE_CALL_STARTED = 14;
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protected static final int EVENT_VOICE_CALL_ENDED = 15;
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protected static final int EVENT_GPRS_DETACHED = 19;
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protected static final int EVENT_LINK_STATE_CHANGED = 20;
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protected static final int EVENT_ROAMING_ON = 21;
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protected static final int EVENT_ROAMING_OFF = 22;
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protected static final int EVENT_ENABLE_NEW_APN = 23;
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protected static final int EVENT_RESTORE_DEFAULT_APN = 24;
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protected static final int EVENT_DISCONNECT_DONE = 25;
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protected static final int EVENT_GPRS_ATTACHED = 26;
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protected static final int EVENT_START_NETSTAT_POLL = 27;
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protected static final int EVENT_START_RECOVERY = 28;
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protected static final int EVENT_APN_CHANGED = 29;
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protected static final int EVENT_CDMA_DATA_DETACHED = 30;
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protected static final int EVENT_NV_READY = 31;
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protected static final int EVENT_PS_RESTRICT_ENABLED = 32;
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protected static final int EVENT_PS_RESTRICT_DISABLED = 33;
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public static final int EVENT_CLEAN_UP_CONNECTION = 34;
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protected static final int EVENT_CDMA_OTA_PROVISION = 35;
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protected static final int EVENT_RESTART_RADIO = 36;
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//***** Constants
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protected static final int APN_INVALID_ID = -1;
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protected static final int APN_DEFAULT_ID = 0;
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protected static final int APN_MMS_ID = 1;
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protected static final int APN_SUPL_ID = 2;
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protected static final int APN_DUN_ID = 3;
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protected static final int APN_HIPRI_ID = 4;
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protected static final int APN_NUM_TYPES = 5;
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protected boolean[] dataEnabled = new boolean[APN_NUM_TYPES];
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protected int enabledCount = 0;
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/* Currently requested APN type */
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protected String mRequestedApnType = Phone.APN_TYPE_DEFAULT;
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/** Retry configuration: A doubling of retry times from 5secs to 30minutes */
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protected static final String DEFAULT_DATA_RETRY_CONFIG = "default_randomization=2000,"
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+ "5000,10000,20000,40000,80000:5000,160000:5000,"
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+ "320000:5000,640000:5000,1280000:5000,1800000:5000";
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/** Slow poll when attempting connection recovery. */
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protected static final int POLL_NETSTAT_SLOW_MILLIS = 5000;
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/** Default ping deadline, in seconds. */
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protected static final int DEFAULT_PING_DEADLINE = 5;
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/** Default max failure count before attempting to network re-registration. */
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protected static final int DEFAULT_MAX_PDP_RESET_FAIL = 3;
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/**
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* After detecting a potential connection problem, this is the max number
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* of subsequent polls before attempting a radio reset. At this point,
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* poll interval is 5 seconds (POLL_NETSTAT_SLOW_MILLIS), so set this to
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* poll for about 2 more minutes.
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*/
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protected static final int NO_RECV_POLL_LIMIT = 24;
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// 1 sec. default polling interval when screen is on.
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protected static final int POLL_NETSTAT_MILLIS = 1000;
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// 10 min. default polling interval when screen is off.
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protected static final int POLL_NETSTAT_SCREEN_OFF_MILLIS = 1000*60*10;
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// 2 min for round trip time
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protected static final int POLL_LONGEST_RTT = 120 * 1000;
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// 10 for packets without ack
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protected static final int NUMBER_SENT_PACKETS_OF_HANG = 10;
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// how long to wait before switching back to default APN
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protected static final int RESTORE_DEFAULT_APN_DELAY = 1 * 60 * 1000;
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// system property that can override the above value
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protected static final String APN_RESTORE_DELAY_PROP_NAME = "android.telephony.apn-restore";
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// represents an invalid IP address
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protected static final String NULL_IP = "0.0.0.0";
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// member variables
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protected PhoneBase phone;
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protected Activity activity = Activity.NONE;
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protected State state = State.IDLE;
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protected Handler mDataConnectionTracker = null;
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protected INetStatService netstat;
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protected long txPkts, rxPkts, sentSinceLastRecv;
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protected int netStatPollPeriod;
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protected int mNoRecvPollCount = 0;
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protected boolean netStatPollEnabled = false;
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/** Manage the behavior of data retry after failure */
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protected final RetryManager mRetryMgr = new RetryManager();
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// wifi connection status will be updated by sticky intent
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protected boolean mIsWifiConnected = false;
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/** Intent sent when the reconnect alarm fires. */
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protected PendingIntent mReconnectIntent = null;
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/** CID of active data connection */
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protected int cidActive;
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/**
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* Default constructor
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*/
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protected DataConnectionTracker(PhoneBase phone) {
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super();
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this.phone = phone;
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}
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public abstract void dispose();
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public Activity getActivity() {
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return activity;
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}
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public State getState() {
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return state;
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}
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public String getStateInString() {
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switch (state) {
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case IDLE: return "IDLE";
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case INITING: return "INIT";
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case CONNECTING: return "CING";
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case SCANNING: return "SCAN";
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case CONNECTED: return "CNTD";
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case DISCONNECTING: return "DING";
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case FAILED: return "FAIL";
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default: return "ERRO";
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}
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}
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/**
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* The data connection is expected to be setup while device
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* 1. has Icc card
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* 2. registered for data service
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* 3. user doesn't explicitly disable data service
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* 4. wifi is not on
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*
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* @return false while no data connection if all above requirements are met.
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*/
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public abstract boolean isDataConnectionAsDesired();
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//The data roaming setting is now located in the shared preferences.
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// See if the requested preference value is the same as that stored in
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// the shared values. If it is not, then update it.
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public void setDataOnRoamingEnabled(boolean enabled) {
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if (getDataOnRoamingEnabled() != enabled) {
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Settings.Secure.putInt(phone.getContext().getContentResolver(),
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Settings.Secure.DATA_ROAMING, enabled ? 1 : 0);
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if (phone.getServiceState().getRoaming()) {
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if (enabled) {
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mRetryMgr.resetRetryCount();
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}
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sendMessage(obtainMessage(EVENT_ROAMING_ON));
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}
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}
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}
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//Retrieve the data roaming setting from the shared preferences.
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public boolean getDataOnRoamingEnabled() {
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try {
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return Settings.Secure.getInt(phone.getContext().getContentResolver(),
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Settings.Secure.DATA_ROAMING) > 0;
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} catch (SettingNotFoundException snfe) {
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return false;
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}
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}
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// abstract handler methods
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protected abstract void onTrySetupData(String reason);
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protected abstract void onRoamingOff();
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protected abstract void onRoamingOn();
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protected abstract void onRadioAvailable();
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protected abstract void onRadioOffOrNotAvailable();
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protected abstract void onDataSetupComplete(AsyncResult ar);
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protected abstract void onDisconnectDone(AsyncResult ar);
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protected abstract void onVoiceCallStarted();
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protected abstract void onVoiceCallEnded();
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protected abstract void onCleanUpConnection(boolean tearDown, String reason);
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//***** Overridden from Handler
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public void handleMessage (Message msg) {
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switch (msg.what) {
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case EVENT_TRY_SETUP_DATA:
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String reason = null;
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if (msg.obj instanceof String) {
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reason = (String)msg.obj;
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}
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onTrySetupData(reason);
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break;
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case EVENT_ROAMING_OFF:
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if (getDataOnRoamingEnabled() == false) {
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mRetryMgr.resetRetryCount();
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}
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onRoamingOff();
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break;
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case EVENT_ROAMING_ON:
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onRoamingOn();
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break;
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case EVENT_RADIO_AVAILABLE:
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onRadioAvailable();
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break;
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case EVENT_RADIO_OFF_OR_NOT_AVAILABLE:
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onRadioOffOrNotAvailable();
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break;
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case EVENT_DATA_SETUP_COMPLETE:
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cidActive = msg.arg1;
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onDataSetupComplete((AsyncResult) msg.obj);
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break;
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case EVENT_DISCONNECT_DONE:
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onDisconnectDone((AsyncResult) msg.obj);
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break;
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case EVENT_VOICE_CALL_STARTED:
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onVoiceCallStarted();
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break;
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case EVENT_VOICE_CALL_ENDED:
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onVoiceCallEnded();
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break;
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case EVENT_CLEAN_UP_CONNECTION:
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boolean tearDown = (msg.arg1 == 0) ? false : true;
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onCleanUpConnection(tearDown, (String)msg.obj);
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break;
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default:
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Log.e("DATA", "Unidentified event = " + msg.what);
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break;
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}
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}
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/**
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* Report the current state of data connectivity (enabled or disabled)
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* @return {@code false} if data connectivity has been explicitly disabled,
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* {@code true} otherwise.
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*/
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public boolean getDataEnabled() {
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return dataEnabled[APN_DEFAULT_ID];
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}
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/**
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* Report on whether data connectivity is enabled
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* @return {@code false} if data connectivity has been explicitly disabled,
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* {@code true} otherwise.
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*/
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public boolean getAnyDataEnabled() {
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return (enabledCount != 0);
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}
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protected abstract void startNetStatPoll();
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protected abstract void stopNetStatPoll();
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protected abstract void restartRadio();
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protected abstract void log(String s);
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protected int apnTypeToId(String type) {
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if (TextUtils.equals(type, Phone.APN_TYPE_DEFAULT)) {
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return APN_DEFAULT_ID;
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} else if (TextUtils.equals(type, Phone.APN_TYPE_MMS)) {
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return APN_MMS_ID;
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} else if (TextUtils.equals(type, Phone.APN_TYPE_SUPL)) {
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return APN_SUPL_ID;
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} else if (TextUtils.equals(type, Phone.APN_TYPE_DUN)) {
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return APN_DUN_ID;
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} else if (TextUtils.equals(type, Phone.APN_TYPE_HIPRI)) {
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return APN_HIPRI_ID;
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} else {
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return APN_INVALID_ID;
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}
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}
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protected abstract boolean isApnTypeActive(String type);
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protected abstract boolean isApnTypeAvailable(String type);
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protected abstract String[] getActiveApnTypes();
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protected abstract String getActiveApnString();
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public abstract ArrayList<DataConnection> getAllDataConnections();
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protected abstract String getInterfaceName(String apnType);
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protected abstract String getIpAddress(String apnType);
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protected abstract String getGateway(String apnType);
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protected abstract String[] getDnsServers(String apnType);
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protected abstract void setState(State s);
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protected boolean isEnabled(int id) {
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if (id != APN_INVALID_ID) {
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return dataEnabled[id];
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}
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return false;
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}
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/**
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* Ensure that we are connected to an APN of the specified type.
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* @param type the APN type (currently the only valid values
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* are {@link Phone#APN_TYPE_MMS} and {@link Phone#APN_TYPE_SUPL})
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* @return the result of the operation. Success is indicated by
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* a return value of either {@code Phone.APN_ALREADY_ACTIVE} or
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* {@code Phone.APN_REQUEST_STARTED}. In the latter case, a broadcast
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* will be sent by the ConnectivityManager when a connection to
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* the APN has been established.
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*/
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public int enableApnType(String type) {
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int id = apnTypeToId(type);
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if (id == APN_INVALID_ID) {
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return Phone.APN_REQUEST_FAILED;
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}
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// If already active, return
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if(DBG) Log.d(LOG_TAG, "enableApnType("+type+"), isApnTypeActive = "
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+ isApnTypeActive(type) + " and state = " + state);
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if (isApnTypeActive(type)) {
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if (state == State.INITING) return Phone.APN_REQUEST_STARTED;
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else if (state == State.CONNECTED) return Phone.APN_ALREADY_ACTIVE;
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}
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if (!isApnTypeAvailable(type)) {
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return Phone.APN_TYPE_NOT_AVAILABLE;
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}
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setEnabled(id, true);
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mRequestedApnType = type;
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sendMessage(obtainMessage(EVENT_ENABLE_NEW_APN));
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return Phone.APN_REQUEST_STARTED;
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}
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/**
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* The APN of the specified type is no longer needed. Ensure that if
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* use of the default APN has not been explicitly disabled, we are connected
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* to the default APN.
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* @param type the APN type. The only valid values are currently
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* {@link Phone#APN_TYPE_MMS} and {@link Phone#APN_TYPE_SUPL}.
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* @return
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*/
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public int disableApnType(String type) {
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if (DBG) Log.d(LOG_TAG, "disableApnType("+type+")");
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int id = apnTypeToId(type);
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if (id == APN_INVALID_ID) {
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return Phone.APN_REQUEST_FAILED;
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}
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if (isEnabled(id)) {
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setEnabled(id, false);
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if (isApnTypeActive(Phone.APN_TYPE_DEFAULT)) {
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mRequestedApnType = Phone.APN_TYPE_DEFAULT;
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if (dataEnabled[APN_DEFAULT_ID]) {
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return Phone.APN_ALREADY_ACTIVE;
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} else {
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return Phone.APN_REQUEST_STARTED;
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}
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} else {
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return Phone.APN_REQUEST_STARTED;
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}
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} else {
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return Phone.APN_REQUEST_FAILED;
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}
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}
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protected synchronized void setEnabled(int id, boolean enable) {
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if (DBG) Log.d(LOG_TAG, "setEnabled(" + id + ", " + enable + ')');
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if (dataEnabled[id] != enable) {
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dataEnabled[id] = enable;
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// count the total number of enabled APN's
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// if we just enabled the first APN, start our Data connection,
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// if we disabled the last, stop our data connection
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if (enable) {
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enabledCount++;
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if (enabledCount == 1) {
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setPrivateDataEnabled(true);
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}
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} else {
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enabledCount--;
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if (enabledCount == 0) {
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setPrivateDataEnabled(false);
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}
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}
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}
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}
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/**
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* Prevent mobile data connections from being established,
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* or once again allow mobile data connections. If the state
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* toggles, then either tear down or set up data, as
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* appropriate to match the new state.
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* <p>This operation only affects the default APN, and if the same APN is
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* currently being used for MMS traffic, the teardown will not happen
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* even when {@code enable} is {@code false}.</p>
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* @param enable indicates whether to enable ({@code true}) or disable ({@code false}) data
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* @return {@code true} if the operation succeeded
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*/
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public boolean setDataEnabled(boolean enable) {
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if (DBG) Log.d(LOG_TAG, "setDataEnabled("+enable+")");
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setEnabled(APN_DEFAULT_ID, enable);
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return true;
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}
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private void setPrivateDataEnabled(boolean enable) {
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if (DBG) Log.d(LOG_TAG, "setPrivateDataEnabled("+enable+")");
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if (enable) {
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sendMessage(obtainMessage(EVENT_TRY_SETUP_DATA));
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} else {
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Message msg = obtainMessage(EVENT_CLEAN_UP_CONNECTION);
|
|
msg.arg1 = 1; // tearDown is true
|
|
msg.obj = Phone.REASON_DATA_DISABLED;
|
|
sendMessage(msg);
|
|
}
|
|
}
|
|
|
|
}
|