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Merge "Extract SimChangeListener to its own file"

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am: 0ef8df6d52

Change-Id: Ib83aa0acc1cf19c04ed94a198bb8333c7e3a60b8
This commit is contained in:
Erik Kline
2017-04-13 08:33:12 +00:00
committed by android-build-merger
parent 1303b8b9ca 0ef8df6d52
commit 85f5725fb5
3 changed files with 311 additions and 124 deletions
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177
services/core/java/com/android/server/connectivity/Tethering.java
View File

@@ -77,6 +77,7 @@ import com.android.server.connectivity.tethering.IControlsTethering;
import com.android.server.connectivity.tethering.IPv6TetheringCoordinator;
import com.android.server.connectivity.tethering.IPv6TetheringInterfaceServices;
import com.android.server.connectivity.tethering.OffloadController;
import com.android.server.connectivity.tethering.SimChangeListener;
import com.android.server.connectivity.tethering.TetherInterfaceStateMachine;
import com.android.server.connectivity.tethering.TetheringConfiguration;
import com.android.server.connectivity.tethering.UpstreamNetworkMonitor;
@@ -157,6 +158,7 @@ public class Tethering extends BaseNetworkObserver implements IControlsTethering
private final OffloadController mOffloadController;
private final UpstreamNetworkMonitor mUpstreamNetworkMonitor;
private final HashSet<TetherInterfaceStateMachine> mForwardedDownstreams;
private final SimChangeListener mSimChange;
private volatile TetheringConfiguration mConfig;
private String mCurrentUpstreamIface;
@@ -190,6 +192,8 @@ public class Tethering extends BaseNetworkObserver implements IControlsTethering
mUpstreamNetworkMonitor = new UpstreamNetworkMonitor(
mContext, mTetherMasterSM, TetherMasterSM.EVENT_UPSTREAM_CALLBACK);
mForwardedDownstreams = new HashSet<>();
mSimChange = new SimChangeListener(
mContext, mTetherMasterSM.getHandler(), () -> reevaluateSimCardProvisioning());
mStateReceiver = new StateReceiver();
IntentFilter filter = new IntentFilter();
@@ -352,6 +356,20 @@ public class Tethering extends BaseNetworkObserver implements IControlsTethering
return (provisionApp.length == 2);
}
// Used by the SIM card change observation code.
// TODO: De-duplicate above code.
private boolean hasMobileHotspotProvisionApp() {
try {
if (!mContext.getResources().getString(com.android.internal.R.string.
config_mobile_hotspot_provision_app_no_ui).isEmpty()) {
Log.d(TAG, "re-evaluate provisioning");
return true;
}
} catch (Resources.NotFoundException e) {}
Log.d(TAG, "no prov-check needed for new SIM");
return false;
}
/**
* Enables or disables tethering for the given type. This should only be called once
* provisioning has succeeded or is not necessary. It will also schedule provisioning rechecks
@@ -526,6 +544,16 @@ public class Tethering extends BaseNetworkObserver implements IControlsTethering
}
}
// Used by the SIM card change observation code.
// TODO: De-duplicate with above code, where possible.
private void startProvisionIntent(int tetherType) {
final Intent startProvIntent = new Intent();
startProvIntent.putExtra(ConnectivityManager.EXTRA_ADD_TETHER_TYPE, tetherType);
startProvIntent.putExtra(ConnectivityManager.EXTRA_RUN_PROVISION, true);
startProvIntent.setComponent(TETHER_SERVICE);
mContext.startServiceAsUser(startProvIntent, UserHandle.CURRENT);
}
public int tether(String iface) {
return tether(iface, IControlsTethering.STATE_TETHERED);
}
@@ -995,6 +1023,29 @@ public class Tethering extends BaseNetworkObserver implements IControlsTethering
return false;
}
private void reevaluateSimCardProvisioning() {
if (!hasMobileHotspotProvisionApp()) return;
ArrayList<Integer> tethered = new ArrayList<>();
synchronized (mPublicSync) {
for (int i = 0; i < mTetherStates.size(); i++) {
TetherState tetherState = mTetherStates.valueAt(i);
if (tetherState.lastState != IControlsTethering.STATE_TETHERED) {
continue; // Skip interfaces that aren't tethered.
}
String iface = mTetherStates.keyAt(i);
int interfaceType = ifaceNameToType(iface);
if (interfaceType != ConnectivityManager.TETHERING_INVALID) {
tethered.add(interfaceType);
}
}
}
for (int tetherType : tethered) {
startProvisionIntent(tetherType);
}
}
class TetherMasterSM extends StateMachine {
private static final int BASE_MASTER = Protocol.BASE_TETHERING;
// an interface SM has requested Tethering/Local Hotspot
@@ -1268,127 +1319,6 @@ public class Tethering extends BaseNetworkObserver implements IControlsTethering
}
}
private class SimChangeListener {
private final Context mContext;
private final AtomicInteger mSimBcastGenerationNumber;
private BroadcastReceiver mBroadcastReceiver;
SimChangeListener(Context ctx) {
mContext = ctx;
mSimBcastGenerationNumber = new AtomicInteger(0);
}
public int generationNumber() {
return mSimBcastGenerationNumber.get();
}
public void startListening() {
if (DBG) Log.d(TAG, "startListening for SIM changes");
if (mBroadcastReceiver != null) return;
mBroadcastReceiver = new SimChangeBroadcastReceiver(
mSimBcastGenerationNumber.incrementAndGet());
final IntentFilter filter = new IntentFilter();
filter.addAction(TelephonyIntents.ACTION_SIM_STATE_CHANGED);
mContext.registerReceiver(mBroadcastReceiver, filter, null,
mTetherMasterSM.getHandler());
}
public void stopListening() {
if (DBG) Log.d(TAG, "stopListening for SIM changes");
if (mBroadcastReceiver == null) return;
mSimBcastGenerationNumber.incrementAndGet();
mContext.unregisterReceiver(mBroadcastReceiver);
mBroadcastReceiver = null;
}
public boolean hasMobileHotspotProvisionApp() {
try {
if (!mContext.getResources().getString(com.android.internal.R.string.
config_mobile_hotspot_provision_app_no_ui).isEmpty()) {
Log.d(TAG, "re-evaluate provisioning");
return true;
}
} catch (Resources.NotFoundException e) {}
Log.d(TAG, "no prov-check needed for new SIM");
return false;
}
private boolean isSimCardLoaded(String state) {
return IccCardConstants.INTENT_VALUE_ICC_LOADED.equals(state);
}
private void startProvisionIntent(int tetherType) {
final Intent startProvIntent = new Intent();
startProvIntent.putExtra(ConnectivityManager.EXTRA_ADD_TETHER_TYPE, tetherType);
startProvIntent.putExtra(ConnectivityManager.EXTRA_RUN_PROVISION, true);
startProvIntent.setComponent(TETHER_SERVICE);
mContext.startServiceAsUser(startProvIntent, UserHandle.CURRENT);
}
private class SimChangeBroadcastReceiver extends BroadcastReceiver {
// used to verify this receiver is still current
final private int mGenerationNumber;
// used to check the sim state transition from non-loaded to loaded
private boolean mSimNotLoadedSeen = false;
public SimChangeBroadcastReceiver(int generationNumber) {
mGenerationNumber = generationNumber;
}
@Override
public void onReceive(Context context, Intent intent) {
final int currentGenerationNumber = mSimBcastGenerationNumber.get();
if (DBG) {
Log.d(TAG, "simchange mGenerationNumber=" + mGenerationNumber +
", current generationNumber=" + currentGenerationNumber);
}
if (mGenerationNumber != currentGenerationNumber) return;
final String state = intent.getStringExtra(
IccCardConstants.INTENT_KEY_ICC_STATE);
Log.d(TAG, "got Sim changed to state " + state + ", mSimNotLoadedSeen=" +
mSimNotLoadedSeen);
if (!isSimCardLoaded(state)) {
if (!mSimNotLoadedSeen) mSimNotLoadedSeen = true;
return;
}
if (isSimCardLoaded(state) && mSimNotLoadedSeen) {
mSimNotLoadedSeen = false;
if (!hasMobileHotspotProvisionApp()) return;
ArrayList<Integer> tethered = new ArrayList<Integer>();
synchronized (mPublicSync) {
for (int i = 0; i < mTetherStates.size(); i++) {
TetherState tetherState = mTetherStates.valueAt(i);
if (tetherState.lastState != IControlsTethering.STATE_TETHERED) {
continue; // Skip interfaces that aren't tethered.
}
String iface = mTetherStates.keyAt(i);
int interfaceType = ifaceNameToType(iface);
if (interfaceType != ConnectivityManager.TETHERING_INVALID) {
tethered.add(new Integer(interfaceType));
}
}
}
for (int tetherType : tethered) {
startProvisionIntent(tetherType);
}
}
}
}
}
private void handleInterfaceServingStateActive(int mode, TetherInterfaceStateMachine who) {
if (mNotifyList.indexOf(who) < 0) {
mNotifyList.add(who);
@@ -1434,7 +1364,6 @@ public class Tethering extends BaseNetworkObserver implements IControlsTethering
}
class TetherModeAliveState extends TetherMasterUtilState {
final SimChangeListener simChange = new SimChangeListener(mContext);
boolean mUpstreamWanted = false;
boolean mTryCell = true;
@@ -1442,7 +1371,7 @@ public class Tethering extends BaseNetworkObserver implements IControlsTethering
public void enter() {
// TODO: examine if we should check the return value.
turnOnMasterTetherSettings(); // may transition us out
simChange.startListening();
mSimChange.startListening();
mUpstreamNetworkMonitor.start();
mOffloadController.start();
@@ -1458,7 +1387,7 @@ public class Tethering extends BaseNetworkObserver implements IControlsTethering
mOffloadController.stop();
unrequestUpstreamMobileConnection();
mUpstreamNetworkMonitor.stop();
simChange.stopListening();
mSimChange.stopListening();
notifyTetheredOfNewUpstreamIface(null);
handleNewUpstreamNetworkState(null);
}

124
services/core/java/com/android/server/connectivity/tethering/SimChangeListener.java Normal file
View File

@@ -0,0 +1,124 @@
/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.server.connectivity.tethering;
import static com.android.internal.telephony.IccCardConstants.INTENT_VALUE_ICC_LOADED;
import static com.android.internal.telephony.IccCardConstants.INTENT_KEY_ICC_STATE;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Handler;
import android.util.Log;
import com.android.internal.telephony.TelephonyIntents;
import java.util.concurrent.atomic.AtomicInteger;
/**
* A utility class that runs the provided callback on the provided handler when
* observing a new SIM card having been loaded.
*
* @hide
*/
public class SimChangeListener {
private static final String TAG = SimChangeListener.class.getSimpleName();
private static final boolean DBG = false;
private final Context mContext;
private final Handler mTarget;
private final AtomicInteger mSimBcastGenerationNumber;
private final Runnable mCallback;
private BroadcastReceiver mBroadcastReceiver;
public SimChangeListener(Context ctx, Handler handler, Runnable onSimCardLoadedCallback) {
mContext = ctx;
mTarget = handler;
mCallback = onSimCardLoadedCallback;
mSimBcastGenerationNumber = new AtomicInteger(0);
}
public int generationNumber() {
return mSimBcastGenerationNumber.get();
}
public void startListening() {
if (DBG) Log.d(TAG, "startListening for SIM changes");
if (mBroadcastReceiver != null) return;
mBroadcastReceiver = new SimChangeBroadcastReceiver(
mSimBcastGenerationNumber.incrementAndGet());
final IntentFilter filter = new IntentFilter();
filter.addAction(TelephonyIntents.ACTION_SIM_STATE_CHANGED);
mContext.registerReceiver(mBroadcastReceiver, filter, null, mTarget);
}
public void stopListening() {
if (DBG) Log.d(TAG, "stopListening for SIM changes");
if (mBroadcastReceiver == null) return;
mSimBcastGenerationNumber.incrementAndGet();
mContext.unregisterReceiver(mBroadcastReceiver);
mBroadcastReceiver = null;
}
private boolean isSimCardLoaded(String state) {
return INTENT_VALUE_ICC_LOADED.equals(state);
}
private class SimChangeBroadcastReceiver extends BroadcastReceiver {
// used to verify this receiver is still current
final private int mGenerationNumber;
// used to check the sim state transition from non-loaded to loaded
private boolean mSimNotLoadedSeen = false;
public SimChangeBroadcastReceiver(int generationNumber) {
mGenerationNumber = generationNumber;
}
@Override
public void onReceive(Context context, Intent intent) {
final int currentGenerationNumber = mSimBcastGenerationNumber.get();
if (DBG) {
Log.d(TAG, "simchange mGenerationNumber=" + mGenerationNumber +
", current generationNumber=" + currentGenerationNumber);
}
if (mGenerationNumber != currentGenerationNumber) return;
final String state = intent.getStringExtra(INTENT_KEY_ICC_STATE);
Log.d(TAG, "got Sim changed to state " + state + ", mSimNotLoadedSeen=" +
mSimNotLoadedSeen);
if (!isSimCardLoaded(state)) {
mSimNotLoadedSeen = true;
return;
}
if (mSimNotLoadedSeen) {
mSimNotLoadedSeen = false;
mCallback.run();
}
}
}
}

134
tests/net/java/com/android/server/connectivity/tethering/SimChangeListenerTest.java Normal file
View File

@@ -0,0 +1,134 @@
/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.server.connectivity.tethering;
import static com.android.internal.telephony.IccCardConstants.INTENT_VALUE_ICC_ABSENT;
import static com.android.internal.telephony.IccCardConstants.INTENT_VALUE_ICC_LOADED;
import static com.android.internal.telephony.IccCardConstants.INTENT_KEY_ICC_STATE;
import static com.android.internal.telephony.TelephonyIntents.ACTION_SIM_STATE_CHANGED;
import static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.reset;
import android.content.Context;
import android.content.Intent;
import android.os.Handler;
import android.os.Looper;
import android.os.UserHandle;
import android.support.test.filters.SmallTest;
import android.support.test.runner.AndroidJUnit4;
import com.android.internal.util.test.BroadcastInterceptingContext;
import org.junit.After;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.runner.RunWith;
import org.junit.Test;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.MockitoAnnotations;
@RunWith(AndroidJUnit4.class)
@SmallTest
public class SimChangeListenerTest {
private static final int EVENT_UNM_UPDATE = 1;
@Mock private Context mContext;
private BroadcastInterceptingContext mServiceContext;
private Handler mHandler;
private SimChangeListener mSCL;
private int mCallbackCount;
private void doCallback() { mCallbackCount++; }
private class MockContext extends BroadcastInterceptingContext {
MockContext(Context base) {
super(base);
}
}
@BeforeClass
public static void setUpBeforeClass() throws Exception {
if (Looper.myLooper() == null) {
Looper.prepare();
}
}
@Before public void setUp() throws Exception {
MockitoAnnotations.initMocks(this);
reset(mContext);
mServiceContext = new MockContext(mContext);
mHandler = new Handler(Looper.myLooper());
mCallbackCount = 0;
mSCL = new SimChangeListener(mServiceContext, mHandler, () -> doCallback());
}
@After public void tearDown() throws Exception {
if (mSCL != null) {
mSCL.stopListening();
mSCL = null;
}
}
private void sendSimStateChangeIntent(String state) {
final Intent intent = new Intent(ACTION_SIM_STATE_CHANGED);
intent.putExtra(INTENT_KEY_ICC_STATE, state);
mServiceContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL);
}
@Test
public void testNotSeenFollowedBySeenCallsCallback() {
mSCL.startListening();
sendSimStateChangeIntent(INTENT_VALUE_ICC_ABSENT);
sendSimStateChangeIntent(INTENT_VALUE_ICC_LOADED);
assertEquals(1, mCallbackCount);
sendSimStateChangeIntent(INTENT_VALUE_ICC_ABSENT);
sendSimStateChangeIntent(INTENT_VALUE_ICC_LOADED);
assertEquals(2, mCallbackCount);
mSCL.stopListening();
}
@Test
public void testNotListeningDoesNotCallback() {
sendSimStateChangeIntent(INTENT_VALUE_ICC_ABSENT);
sendSimStateChangeIntent(INTENT_VALUE_ICC_LOADED);
assertEquals(0, mCallbackCount);
sendSimStateChangeIntent(INTENT_VALUE_ICC_ABSENT);
sendSimStateChangeIntent(INTENT_VALUE_ICC_LOADED);
assertEquals(0, mCallbackCount);
}
@Test
public void testSeenOnlyDoesNotCallback() {
mSCL.startListening();
sendSimStateChangeIntent(INTENT_VALUE_ICC_LOADED);
assertEquals(0, mCallbackCount);
sendSimStateChangeIntent(INTENT_VALUE_ICC_LOADED);
assertEquals(0, mCallbackCount);
mSCL.stopListening();
}
}