| /* |
| * Copyright (c) 2015, 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.phone; |
| |
| import static android.service.carrier.CarrierService.ICarrierServiceWrapper.KEY_CONFIG_BUNDLE; |
| import static android.service.carrier.CarrierService.ICarrierServiceWrapper.RESULT_ERROR; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.app.AppOpsManager; |
| import android.content.BroadcastReceiver; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.ServiceConnection; |
| import android.content.SharedPreferences; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageManager; |
| import android.os.Binder; |
| import android.os.Build; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.Message; |
| import android.os.PersistableBundle; |
| import android.os.Process; |
| import android.os.RemoteException; |
| import android.os.ResultReceiver; |
| import android.os.UserHandle; |
| import android.preference.PreferenceManager; |
| import android.service.carrier.CarrierIdentifier; |
| import android.service.carrier.CarrierService; |
| import android.service.carrier.ICarrierService; |
| import android.telephony.CarrierConfigManager; |
| import android.telephony.SubscriptionManager; |
| import android.telephony.TelephonyFrameworkInitializer; |
| import android.telephony.TelephonyManager; |
| import android.text.TextUtils; |
| import android.util.ArraySet; |
| import android.util.LocalLog; |
| import android.util.Log; |
| |
| import com.android.internal.telephony.ICarrierConfigLoader; |
| import com.android.internal.telephony.IccCardConstants; |
| import com.android.internal.telephony.Phone; |
| import com.android.internal.telephony.PhoneFactory; |
| import com.android.internal.telephony.SubscriptionInfoUpdater; |
| import com.android.internal.telephony.TelephonyPermissions; |
| import com.android.internal.telephony.util.ArrayUtils; |
| import com.android.internal.util.IndentingPrintWriter; |
| |
| import java.io.File; |
| import java.io.FileDescriptor; |
| import java.io.FileInputStream; |
| import java.io.FileNotFoundException; |
| import java.io.FileOutputStream; |
| import java.io.FilenameFilter; |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Set; |
| |
| /** |
| * CarrierConfigLoader binds to privileged carrier apps to fetch carrier config overlays. |
| */ |
| public class CarrierConfigLoader extends ICarrierConfigLoader.Stub { |
| private static final String LOG_TAG = "CarrierConfigLoader"; |
| |
| // Package name for platform carrier config app, bundled with system image. |
| private final String mPlatformCarrierConfigPackage; |
| |
| /** The singleton instance. */ |
| private static CarrierConfigLoader sInstance; |
| // The context for phone app, passed from PhoneGlobals. |
| private Context mContext; |
| // Carrier configs from default app, indexed by phoneID. |
| private PersistableBundle[] mConfigFromDefaultApp; |
| // Carrier configs from privileged carrier config app, indexed by phoneID. |
| private PersistableBundle[] mConfigFromCarrierApp; |
| // Persistent Carrier configs that are provided via the override test API, indexed by phone ID. |
| private PersistableBundle[] mPersistentOverrideConfigs; |
| // Carrier configs that are provided via the override test API, indexed by phone ID. |
| private PersistableBundle[] mOverrideConfigs; |
| // Service connection for binding to config app. |
| private CarrierServiceConnection[] mServiceConnection; |
| // Whether we are bound to a service for each phone |
| private boolean[] mServiceBound; |
| // Whether we have sent config change broadcast for each phone id. |
| private boolean[] mHasSentConfigChange; |
| // Whether the broadcast was sent from EVENT_SYSTEM_UNLOCKED, to track rebroadcasts |
| private boolean[] mFromSystemUnlocked; |
| // SubscriptionInfoUpdater |
| private final SubscriptionInfoUpdater mSubscriptionInfoUpdater; |
| |
| // Broadcast receiver for Boot intents, register intent filter in construtor. |
| private final BroadcastReceiver mBootReceiver = new ConfigLoaderBroadcastReceiver(); |
| // Broadcast receiver for SIM and pkg intents, register intent filter in constructor. |
| private final BroadcastReceiver mPackageReceiver = new ConfigLoaderBroadcastReceiver(); |
| private final LocalLog mCarrierConfigLoadingLog = new LocalLog(100); |
| |
| |
| // Message codes; see mHandler below. |
| // Request from SubscriptionInfoUpdater when SIM becomes absent or error. |
| private static final int EVENT_CLEAR_CONFIG = 0; |
| // Has connected to default app. |
| private static final int EVENT_CONNECTED_TO_DEFAULT = 3; |
| // Has connected to carrier app. |
| private static final int EVENT_CONNECTED_TO_CARRIER = 4; |
| // Config has been loaded from default app (or cache). |
| private static final int EVENT_FETCH_DEFAULT_DONE = 5; |
| // Config has been loaded from carrier app (or cache). |
| private static final int EVENT_FETCH_CARRIER_DONE = 6; |
| // Attempt to fetch from default app or read from XML. |
| private static final int EVENT_DO_FETCH_DEFAULT = 7; |
| // Attempt to fetch from carrier app or read from XML. |
| private static final int EVENT_DO_FETCH_CARRIER = 8; |
| // A package has been installed, uninstalled, or updated. |
| private static final int EVENT_PACKAGE_CHANGED = 9; |
| // Bind timed out for the default app. |
| private static final int EVENT_BIND_DEFAULT_TIMEOUT = 10; |
| // Bind timed out for a carrier app. |
| private static final int EVENT_BIND_CARRIER_TIMEOUT = 11; |
| // Check if the system fingerprint has changed. |
| private static final int EVENT_CHECK_SYSTEM_UPDATE = 12; |
| // Rerun carrier config binding after system is unlocked. |
| private static final int EVENT_SYSTEM_UNLOCKED = 13; |
| // Fetching config timed out from the default app. |
| private static final int EVENT_FETCH_DEFAULT_TIMEOUT = 14; |
| // Fetching config timed out from a carrier app. |
| private static final int EVENT_FETCH_CARRIER_TIMEOUT = 15; |
| // SubscriptionInfoUpdater has finished updating the sub for the carrier config. |
| private static final int EVENT_SUBSCRIPTION_INFO_UPDATED = 16; |
| // Multi-SIM config changed. |
| private static final int EVENT_MULTI_SIM_CONFIG_CHANGED = 17; |
| |
| private static final int BIND_TIMEOUT_MILLIS = 30000; |
| |
| // Keys used for saving and restoring config bundle from file. |
| private static final String KEY_VERSION = "__carrier_config_package_version__"; |
| |
| private static final String OVERRIDE_PACKAGE_ADDITION = "-override"; |
| |
| // SharedPreferences key for last known build fingerprint. |
| private static final String KEY_FINGERPRINT = "build_fingerprint"; |
| |
| // Argument for #dump that indicates we should also call the default and specified carrier |
| // service's #dump method. In multi-SIM devices, it's possible that carrier A is on SIM 1 and |
| // carrier B is on SIM 2, in which case we should not dump carrier B's service when carrier A |
| // requested the dump. |
| private static final String DUMP_ARG_REQUESTING_PACKAGE = "--requesting-package"; |
| |
| // Handler to process various events. |
| // |
| // For each phoneId, the event sequence should be: |
| // fetch default, connected to default, fetch default (async), fetch default done, |
| // fetch carrier, connected to carrier, fetch carrier (async), fetch carrier done. |
| // |
| // If there is a saved config file for either the default app or the carrier app, we skip |
| // binding to the app and go straight from fetch to loaded. |
| // |
| // At any time, at most one connection is active. If events are not in this order, previous |
| // connection will be unbound, so only latest event takes effect. |
| // |
| // We broadcast ACTION_CARRIER_CONFIG_CHANGED after: |
| // 1. loading from carrier app (even if read from a file) |
| // 2. loading from default app if there is no carrier app (even if read from a file) |
| // 3. clearing config (e.g. due to sim removal) |
| // 4. encountering bind or IPC error |
| private class ConfigHandler extends Handler { |
| @Override |
| public void handleMessage(Message msg) { |
| final int phoneId = msg.arg1; |
| logdWithLocalLog("mHandler: " + msg.what + " phoneId: " + phoneId); |
| if (!SubscriptionManager.isValidPhoneId(phoneId) |
| && msg.what != EVENT_MULTI_SIM_CONFIG_CHANGED) { |
| return; |
| } |
| switch (msg.what) { |
| case EVENT_CLEAR_CONFIG: { |
| clearConfigForPhone(phoneId, true); |
| break; |
| } |
| |
| case EVENT_SYSTEM_UNLOCKED: { |
| for (int i = 0; i < TelephonyManager.from(mContext).getActiveModemCount(); |
| ++i) { |
| // When the user unlocks the device, send the broadcast again (with a |
| // rebroadcast extra) if we have sent it before unlock. This will avoid |
| // trying to load the carrier config when the SIM is still loading when the |
| // unlock happens. |
| if (mHasSentConfigChange[i]) { |
| logdWithLocalLog("System unlocked"); |
| mFromSystemUnlocked[i] = true; |
| updateConfigForPhoneId(i); |
| } |
| } |
| break; |
| } |
| |
| case EVENT_PACKAGE_CHANGED: { |
| final String carrierPackageName = (String) msg.obj; |
| // Only update if there are cached config removed to avoid updating config for |
| // unrelated packages. |
| if (clearCachedConfigForPackage(carrierPackageName)) { |
| int numPhones = TelephonyManager.from(mContext).getActiveModemCount(); |
| for (int i = 0; i < numPhones; ++i) { |
| logdWithLocalLog("Package changed: " + carrierPackageName |
| + ", phone=" + i); |
| updateConfigForPhoneId(i); |
| } |
| } |
| break; |
| } |
| |
| case EVENT_DO_FETCH_DEFAULT: { |
| // Restore persistent override values. |
| PersistableBundle config = restoreConfigFromXml( |
| mPlatformCarrierConfigPackage, OVERRIDE_PACKAGE_ADDITION, phoneId); |
| if (config != null) { |
| logd("Loaded persistent override config from XML. package=" |
| + mPlatformCarrierConfigPackage |
| + " phoneId=" + phoneId); |
| mPersistentOverrideConfigs[phoneId] = config; |
| } |
| |
| config = restoreConfigFromXml(mPlatformCarrierConfigPackage, "", phoneId); |
| if (config != null) { |
| logd( |
| "Loaded config from XML. package=" |
| + mPlatformCarrierConfigPackage |
| + " phoneId=" |
| + phoneId); |
| mConfigFromDefaultApp[phoneId] = config; |
| Message newMsg = obtainMessage(EVENT_FETCH_DEFAULT_DONE, phoneId, -1); |
| newMsg.getData().putBoolean("loaded_from_xml", true); |
| mHandler.sendMessage(newMsg); |
| } else { |
| // No cached config, so fetch it from the default app. |
| if (bindToConfigPackage( |
| mPlatformCarrierConfigPackage, |
| phoneId, |
| EVENT_CONNECTED_TO_DEFAULT)) { |
| sendMessageDelayed( |
| obtainMessage(EVENT_BIND_DEFAULT_TIMEOUT, phoneId, -1), |
| BIND_TIMEOUT_MILLIS); |
| } else { |
| // Send broadcast if bind fails. |
| notifySubscriptionInfoUpdater(phoneId); |
| // TODO: We *must* call unbindService even if bindService returns false. |
| // (And possibly if SecurityException was thrown.) |
| loge("binding to default app: " |
| + mPlatformCarrierConfigPackage + " fails"); |
| } |
| } |
| break; |
| } |
| |
| case EVENT_CONNECTED_TO_DEFAULT: { |
| removeMessages(EVENT_BIND_DEFAULT_TIMEOUT); |
| final CarrierServiceConnection conn = (CarrierServiceConnection) msg.obj; |
| // If new service connection has been created, unbind. |
| if (mServiceConnection[phoneId] != conn || conn.service == null) { |
| unbindIfBound(mContext, conn, phoneId); |
| break; |
| } |
| final CarrierIdentifier carrierId = getCarrierIdentifierForPhoneId(phoneId); |
| // ResultReceiver callback will execute in this Handler's thread. |
| final ResultReceiver resultReceiver = |
| new ResultReceiver(this) { |
| @Override |
| public void onReceiveResult(int resultCode, Bundle resultData) { |
| unbindIfBound(mContext, conn, phoneId); |
| // If new service connection has been created, this is stale. |
| if (mServiceConnection[phoneId] != conn) { |
| loge("Received response for stale request."); |
| return; |
| } |
| removeMessages(EVENT_FETCH_DEFAULT_TIMEOUT); |
| if (resultCode == RESULT_ERROR || resultData == null) { |
| // On error, abort config fetching. |
| loge("Failed to get carrier config"); |
| notifySubscriptionInfoUpdater(phoneId); |
| return; |
| } |
| PersistableBundle config = |
| resultData.getParcelable(KEY_CONFIG_BUNDLE); |
| saveConfigToXml(mPlatformCarrierConfigPackage, "", phoneId, |
| carrierId, config); |
| mConfigFromDefaultApp[phoneId] = config; |
| sendMessage( |
| obtainMessage( |
| EVENT_FETCH_DEFAULT_DONE, phoneId, -1)); |
| } |
| }; |
| // Now fetch the config asynchronously from the ICarrierService. |
| try { |
| ICarrierService carrierService = |
| ICarrierService.Stub.asInterface(conn.service); |
| carrierService.getCarrierConfig(carrierId, resultReceiver); |
| logdWithLocalLog("Fetch config for default app: " |
| + mPlatformCarrierConfigPackage |
| + " carrierid: " + carrierId.toString()); |
| } catch (RemoteException e) { |
| loge("Failed to get carrier config from default app: " + |
| mPlatformCarrierConfigPackage + " err: " + e.toString()); |
| unbindIfBound(mContext, conn, phoneId); |
| break; // So we don't set a timeout. |
| } |
| sendMessageDelayed( |
| obtainMessage(EVENT_FETCH_DEFAULT_TIMEOUT, phoneId, -1), |
| BIND_TIMEOUT_MILLIS); |
| break; |
| } |
| |
| case EVENT_BIND_DEFAULT_TIMEOUT: |
| case EVENT_FETCH_DEFAULT_TIMEOUT: { |
| loge("Bind/fetch time out from " + mPlatformCarrierConfigPackage); |
| removeMessages(EVENT_FETCH_DEFAULT_TIMEOUT); |
| // If we attempted to bind to the app, but the service connection is null due to |
| // the race condition that clear config event happens before bind/fetch complete |
| // then config was cleared while we were waiting and we should not continue. |
| if (mServiceConnection[phoneId] != null) { |
| // If a ResponseReceiver callback is in the queue when this happens, we will |
| // unbind twice and throw an exception. |
| unbindIfBound(mContext, mServiceConnection[phoneId], phoneId); |
| broadcastConfigChangedIntent(phoneId); |
| } |
| notifySubscriptionInfoUpdater(phoneId); |
| break; |
| } |
| |
| case EVENT_FETCH_DEFAULT_DONE: { |
| // If we attempted to bind to the app, but the service connection is null, then |
| // config was cleared while we were waiting and we should not continue. |
| if (!msg.getData().getBoolean("loaded_from_xml", false) |
| && mServiceConnection[phoneId] == null) { |
| break; |
| } |
| final String carrierPackageName = getCarrierPackageForPhoneId(phoneId); |
| if (carrierPackageName != null) { |
| logd("Found carrier config app: " + carrierPackageName); |
| sendMessage(obtainMessage(EVENT_DO_FETCH_CARRIER, phoneId, -1)); |
| } else { |
| notifySubscriptionInfoUpdater(phoneId); |
| } |
| break; |
| } |
| |
| case EVENT_DO_FETCH_CARRIER: { |
| final String carrierPackageName = getCarrierPackageForPhoneId(phoneId); |
| final PersistableBundle config = |
| restoreConfigFromXml(carrierPackageName, "", phoneId); |
| if (config != null) { |
| logd( |
| "Loaded config from XML. package=" |
| + carrierPackageName |
| + " phoneId=" |
| + phoneId); |
| mConfigFromCarrierApp[phoneId] = config; |
| Message newMsg = obtainMessage(EVENT_FETCH_CARRIER_DONE, phoneId, -1); |
| newMsg.getData().putBoolean("loaded_from_xml", true); |
| sendMessage(newMsg); |
| } else { |
| // No cached config, so fetch it from a carrier app. |
| if (carrierPackageName != null && bindToConfigPackage(carrierPackageName, |
| phoneId, EVENT_CONNECTED_TO_CARRIER)) { |
| sendMessageDelayed( |
| obtainMessage(EVENT_BIND_CARRIER_TIMEOUT, phoneId, -1), |
| BIND_TIMEOUT_MILLIS); |
| } else { |
| // Send broadcast if bind fails. |
| broadcastConfigChangedIntent(phoneId); |
| loge("Bind to carrier app: " + carrierPackageName + " fails"); |
| notifySubscriptionInfoUpdater(phoneId); |
| } |
| } |
| break; |
| } |
| |
| case EVENT_CONNECTED_TO_CARRIER: { |
| removeMessages(EVENT_BIND_CARRIER_TIMEOUT); |
| final CarrierServiceConnection conn = (CarrierServiceConnection) msg.obj; |
| // If new service connection has been created, unbind. |
| if (mServiceConnection[phoneId] != conn || conn.service == null) { |
| unbindIfBound(mContext, conn, phoneId); |
| break; |
| } |
| final CarrierIdentifier carrierId = getCarrierIdentifierForPhoneId(phoneId); |
| // ResultReceiver callback will execute in this Handler's thread. |
| final ResultReceiver resultReceiver = |
| new ResultReceiver(this) { |
| @Override |
| public void onReceiveResult(int resultCode, Bundle resultData) { |
| unbindIfBound(mContext, conn, phoneId); |
| // If new service connection has been created, this is stale. |
| if (mServiceConnection[phoneId] != conn) { |
| loge("Received response for stale request."); |
| return; |
| } |
| removeMessages(EVENT_FETCH_CARRIER_TIMEOUT); |
| if (resultCode == RESULT_ERROR || resultData == null) { |
| // On error, abort config fetching. |
| loge("Failed to get carrier config from carrier app: " |
| + getCarrierPackageForPhoneId(phoneId)); |
| broadcastConfigChangedIntent(phoneId); |
| notifySubscriptionInfoUpdater(phoneId); |
| return; |
| } |
| PersistableBundle config = |
| resultData.getParcelable(KEY_CONFIG_BUNDLE); |
| saveConfigToXml(getCarrierPackageForPhoneId(phoneId), "", |
| phoneId, carrierId, config); |
| mConfigFromCarrierApp[phoneId] = config; |
| sendMessage( |
| obtainMessage( |
| EVENT_FETCH_CARRIER_DONE, phoneId, -1)); |
| } |
| }; |
| // Now fetch the config asynchronously from the ICarrierService. |
| try { |
| ICarrierService carrierService = |
| ICarrierService.Stub.asInterface(conn.service); |
| carrierService.getCarrierConfig(carrierId, resultReceiver); |
| logdWithLocalLog("Fetch config for carrier app: " |
| + getCarrierPackageForPhoneId(phoneId) |
| + " carrierid: " + carrierId.toString()); |
| } catch (RemoteException e) { |
| loge("Failed to get carrier config: " + e.toString()); |
| unbindIfBound(mContext, conn, phoneId); |
| break; // So we don't set a timeout. |
| } |
| sendMessageDelayed( |
| obtainMessage(EVENT_FETCH_CARRIER_TIMEOUT, phoneId, -1), |
| BIND_TIMEOUT_MILLIS); |
| break; |
| } |
| |
| case EVENT_BIND_CARRIER_TIMEOUT: |
| case EVENT_FETCH_CARRIER_TIMEOUT: { |
| loge("Bind/fetch from carrier app timeout"); |
| removeMessages(EVENT_FETCH_CARRIER_TIMEOUT); |
| // If we attempted to bind to the app, but the service connection is null due to |
| // the race condition that clear config event happens before bind/fetch complete |
| // then config was cleared while we were waiting and we should not continue. |
| if (mServiceConnection[phoneId] != null) { |
| // If a ResponseReceiver callback is in the queue when this happens, we will |
| // unbind twice and throw an exception. |
| unbindIfBound(mContext, mServiceConnection[phoneId], phoneId); |
| broadcastConfigChangedIntent(phoneId); |
| } |
| notifySubscriptionInfoUpdater(phoneId); |
| break; |
| } |
| case EVENT_FETCH_CARRIER_DONE: { |
| // If we attempted to bind to the app, but the service connection is null, then |
| // config was cleared while we were waiting and we should not continue. |
| if (!msg.getData().getBoolean("loaded_from_xml", false) |
| && mServiceConnection[phoneId] == null) { |
| break; |
| } |
| notifySubscriptionInfoUpdater(phoneId); |
| break; |
| } |
| |
| case EVENT_CHECK_SYSTEM_UPDATE: { |
| SharedPreferences sharedPrefs = |
| PreferenceManager.getDefaultSharedPreferences(mContext); |
| final String lastFingerprint = sharedPrefs.getString(KEY_FINGERPRINT, null); |
| if (!Build.FINGERPRINT.equals(lastFingerprint)) { |
| logd( |
| "Build fingerprint changed. old: " |
| + lastFingerprint |
| + " new: " |
| + Build.FINGERPRINT); |
| clearCachedConfigForPackage(null); |
| sharedPrefs |
| .edit() |
| .putString(KEY_FINGERPRINT, Build.FINGERPRINT) |
| .apply(); |
| } |
| break; |
| } |
| |
| case EVENT_SUBSCRIPTION_INFO_UPDATED: |
| broadcastConfigChangedIntent(phoneId); |
| break; |
| case EVENT_MULTI_SIM_CONFIG_CHANGED: |
| onMultiSimConfigChanged(); |
| break; |
| } |
| } |
| } |
| |
| private final Handler mHandler; |
| |
| /** |
| * Constructs a CarrierConfigLoader, registers it as a service, and registers a broadcast |
| * receiver for relevant events. |
| */ |
| private CarrierConfigLoader(Context context) { |
| mContext = context; |
| mPlatformCarrierConfigPackage = |
| mContext.getString(R.string.platform_carrier_config_package); |
| mHandler = new ConfigHandler(); |
| |
| IntentFilter bootFilter = new IntentFilter(); |
| bootFilter.addAction(Intent.ACTION_BOOT_COMPLETED); |
| context.registerReceiver(mBootReceiver, bootFilter); |
| |
| // Register for package updates. Update app or uninstall app update will have all 3 intents, |
| // in the order or removed, added, replaced, all with extra_replace set to true. |
| IntentFilter pkgFilter = new IntentFilter(); |
| pkgFilter.addAction(Intent.ACTION_PACKAGE_ADDED); |
| pkgFilter.addAction(Intent.ACTION_PACKAGE_REMOVED); |
| pkgFilter.addAction(Intent.ACTION_PACKAGE_REPLACED); |
| pkgFilter.addDataScheme("package"); |
| context.registerReceiver(mPackageReceiver, pkgFilter); |
| |
| int numPhones = TelephonyManager.from(context).getSupportedModemCount(); |
| mConfigFromDefaultApp = new PersistableBundle[numPhones]; |
| mConfigFromCarrierApp = new PersistableBundle[numPhones]; |
| mPersistentOverrideConfigs = new PersistableBundle[numPhones]; |
| mOverrideConfigs = new PersistableBundle[numPhones]; |
| mServiceConnection = new CarrierServiceConnection[numPhones]; |
| mServiceBound = new boolean[numPhones]; |
| mHasSentConfigChange = new boolean[numPhones]; |
| mFromSystemUnlocked = new boolean[numPhones]; |
| // Make this service available through ServiceManager. |
| TelephonyFrameworkInitializer |
| .getTelephonyServiceManager().getCarrierConfigServiceRegisterer().register(this); |
| logd("CarrierConfigLoader has started"); |
| mSubscriptionInfoUpdater = PhoneFactory.getSubscriptionInfoUpdater(); |
| mHandler.sendEmptyMessage(EVENT_CHECK_SYSTEM_UPDATE); |
| } |
| |
| /** |
| * Initialize the singleton CarrierConfigLoader instance. |
| * |
| * This is only done once, at startup, from {@link com.android.phone.PhoneApp#onCreate}. |
| */ |
| /* package */ |
| static CarrierConfigLoader init(Context context) { |
| synchronized (CarrierConfigLoader.class) { |
| if (sInstance == null) { |
| sInstance = new CarrierConfigLoader(context); |
| } else { |
| Log.wtf(LOG_TAG, "init() called multiple times! sInstance = " + sInstance); |
| } |
| return sInstance; |
| } |
| } |
| |
| private void clearConfigForPhone(int phoneId, boolean sendBroadcast) { |
| /* Ignore clear configuration request if device is being shutdown. */ |
| Phone phone = PhoneFactory.getPhone(phoneId); |
| if (phone != null) { |
| if (phone.isShuttingDown()) { |
| return; |
| } |
| } |
| |
| mConfigFromDefaultApp[phoneId] = null; |
| mConfigFromCarrierApp[phoneId] = null; |
| mServiceConnection[phoneId] = null; |
| mHasSentConfigChange[phoneId] = false; |
| |
| if (sendBroadcast) broadcastConfigChangedIntent(phoneId, false); |
| } |
| |
| private void notifySubscriptionInfoUpdater(int phoneId) { |
| String configPackagename; |
| PersistableBundle configToSend; |
| int carrierId = getSpecificCarrierIdForPhoneId(phoneId); |
| // Prefer the carrier privileged carrier app, but if there is not one, use the platform |
| // default carrier app. |
| if (mConfigFromCarrierApp[phoneId] != null) { |
| configPackagename = getCarrierPackageForPhoneId(phoneId); |
| configToSend = mConfigFromCarrierApp[phoneId]; |
| } else { |
| configPackagename = mPlatformCarrierConfigPackage; |
| configToSend = mConfigFromDefaultApp[phoneId]; |
| } |
| |
| if (configToSend == null) { |
| configToSend = new PersistableBundle(); |
| } |
| |
| // mOverrideConfigs is for testing. And it will override current configs. |
| PersistableBundle config = mOverrideConfigs[phoneId]; |
| if (config != null) { |
| configToSend = new PersistableBundle(configToSend); |
| configToSend.putAll(config); |
| } |
| |
| mSubscriptionInfoUpdater.updateSubscriptionByCarrierConfigAndNotifyComplete( |
| phoneId, configPackagename, configToSend, |
| mHandler.obtainMessage(EVENT_SUBSCRIPTION_INFO_UPDATED, phoneId, -1)); |
| } |
| |
| private void broadcastConfigChangedIntent(int phoneId) { |
| broadcastConfigChangedIntent(phoneId, true); |
| } |
| |
| private void broadcastConfigChangedIntent(int phoneId, boolean addSubIdExtra) { |
| Intent intent = new Intent(CarrierConfigManager.ACTION_CARRIER_CONFIG_CHANGED); |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT | |
| Intent.FLAG_RECEIVER_FOREGROUND); |
| if (addSubIdExtra) { |
| int simApplicationState = TelephonyManager.SIM_STATE_UNKNOWN; |
| int[] subIds = SubscriptionManager.getSubId(phoneId); |
| if (!ArrayUtils.isEmpty(subIds)) { |
| TelephonyManager telMgr = TelephonyManager.from(mContext) |
| .createForSubscriptionId(subIds[0]); |
| simApplicationState = telMgr.getSimApplicationState(); |
| } |
| logd("Broadcast CARRIER_CONFIG_CHANGED for phone " + phoneId |
| + " simApplicationState " + simApplicationState); |
| // Include subId/carrier id extra only if SIM records are loaded |
| if (simApplicationState != TelephonyManager.SIM_STATE_UNKNOWN |
| && simApplicationState != TelephonyManager.SIM_STATE_NOT_READY) { |
| SubscriptionManager.putPhoneIdAndSubIdExtra(intent, phoneId); |
| intent.putExtra(TelephonyManager.EXTRA_SPECIFIC_CARRIER_ID, |
| getSpecificCarrierIdForPhoneId(phoneId)); |
| intent.putExtra(TelephonyManager.EXTRA_CARRIER_ID, getCarrierIdForPhoneId(phoneId)); |
| } |
| } |
| intent.putExtra(CarrierConfigManager.EXTRA_SLOT_INDEX, phoneId); |
| intent.putExtra(CarrierConfigManager.EXTRA_REBROADCAST_ON_UNLOCK, |
| mFromSystemUnlocked[phoneId]); |
| mContext.sendBroadcastAsUser(intent, UserHandle.ALL); |
| int[] subIds = SubscriptionManager.getSubId(phoneId); |
| if (subIds != null && subIds.length > 0) { |
| logd("Broadcast CARRIER_CONFIG_CHANGED for phone " + phoneId + ", subId=" + subIds[0]); |
| } else { |
| logd("Broadcast CARRIER_CONFIG_CHANGED for phone " + phoneId); |
| } |
| mHasSentConfigChange[phoneId] = true; |
| mFromSystemUnlocked[phoneId] = false; |
| } |
| |
| /** Binds to the default or carrier config app. */ |
| private boolean bindToConfigPackage(String pkgName, int phoneId, int eventId) { |
| logdWithLocalLog("Binding to " + pkgName + " for phone " + phoneId); |
| Intent carrierService = new Intent(CarrierService.CARRIER_SERVICE_INTERFACE); |
| carrierService.setPackage(pkgName); |
| mServiceConnection[phoneId] = new CarrierServiceConnection(phoneId, pkgName, eventId); |
| try { |
| if (mContext.bindService(carrierService, mServiceConnection[phoneId], |
| Context.BIND_AUTO_CREATE)) { |
| mServiceBound[phoneId] = true; |
| return true; |
| } else { |
| return false; |
| } |
| } catch (SecurityException ex) { |
| return false; |
| } |
| } |
| |
| private CarrierIdentifier getCarrierIdentifierForPhoneId(int phoneId) { |
| String mcc = ""; |
| String mnc = ""; |
| String imsi = ""; |
| String gid1 = ""; |
| String gid2 = ""; |
| String spn = TelephonyManager.from(mContext).getSimOperatorNameForPhone(phoneId); |
| String simOperator = TelephonyManager.from(mContext).getSimOperatorNumericForPhone(phoneId); |
| int carrierId = TelephonyManager.UNKNOWN_CARRIER_ID; |
| int specificCarrierId = TelephonyManager.UNKNOWN_CARRIER_ID; |
| // A valid simOperator should be 5 or 6 digits, depending on the length of the MNC. |
| if (simOperator != null && simOperator.length() >= 3) { |
| mcc = simOperator.substring(0, 3); |
| mnc = simOperator.substring(3); |
| } |
| Phone phone = PhoneFactory.getPhone(phoneId); |
| if (phone != null) { |
| imsi = phone.getSubscriberId(); |
| gid1 = phone.getGroupIdLevel1(); |
| gid2 = phone.getGroupIdLevel2(); |
| carrierId = phone.getCarrierId(); |
| specificCarrierId = phone.getSpecificCarrierId(); |
| } |
| return new CarrierIdentifier(mcc, mnc, spn, imsi, gid1, gid2, carrierId, specificCarrierId); |
| } |
| |
| /** Returns the package name of a priveleged carrier app, or null if there is none. */ |
| private String getCarrierPackageForPhoneId(int phoneId) { |
| List<String> carrierPackageNames = TelephonyManager.from(mContext) |
| .getCarrierPackageNamesForIntentAndPhone( |
| new Intent(CarrierService.CARRIER_SERVICE_INTERFACE), phoneId); |
| if (carrierPackageNames != null && carrierPackageNames.size() > 0) { |
| return carrierPackageNames.get(0); |
| } else { |
| return null; |
| } |
| } |
| |
| private String getIccIdForPhoneId(int phoneId) { |
| if (!SubscriptionManager.isValidPhoneId(phoneId)) { |
| return null; |
| } |
| Phone phone = PhoneFactory.getPhone(phoneId); |
| if (phone == null) { |
| return null; |
| } |
| return phone.getIccSerialNumber(); |
| } |
| |
| /** |
| * Get the sim specific carrier id {@link TelephonyManager#getSimSpecificCarrierId()} |
| */ |
| private int getSpecificCarrierIdForPhoneId(int phoneId) { |
| if (!SubscriptionManager.isValidPhoneId(phoneId)) { |
| return TelephonyManager.UNKNOWN_CARRIER_ID; |
| } |
| Phone phone = PhoneFactory.getPhone(phoneId); |
| if (phone == null) { |
| return TelephonyManager.UNKNOWN_CARRIER_ID; |
| } |
| return phone.getSpecificCarrierId(); |
| } |
| |
| /** |
| * Get the sim carrier id {@link TelephonyManager#getSimCarrierId() } |
| */ |
| private int getCarrierIdForPhoneId(int phoneId) { |
| if (!SubscriptionManager.isValidPhoneId(phoneId)) { |
| return TelephonyManager.UNKNOWN_CARRIER_ID; |
| } |
| Phone phone = PhoneFactory.getPhone(phoneId); |
| if (phone == null) { |
| return TelephonyManager.UNKNOWN_CARRIER_ID; |
| } |
| return phone.getCarrierId(); |
| } |
| |
| /** |
| * Writes a bundle to an XML file. |
| * |
| * The bundle will be written to a file named after the package name, ICCID and |
| * specific carrier id {@link TelephonyManager#getSimSpecificCarrierId()}. the same carrier |
| * should have a single copy of XML file named after carrier id. However, it's still possible |
| * that platform doesn't recognize the current sim carrier, we will use iccid + carrierid as |
| * the canonical file name. carrierid can also handle the cases SIM OTA resolves to different |
| * carrier while iccid remains the same. |
| * |
| * The file can be restored later with {@link @restoreConfigFromXml}. The XML output will |
| * include the bundle and the current version of the specified package. |
| * |
| * In case of errors or invalid input, no file will be written. |
| * |
| * @param packageName the name of the package from which we fetched this bundle. |
| * @param extraString An extra string to be used in the XML file name. |
| * @param phoneId the phone ID. |
| * @param carrierId contains all carrier-identifying information. |
| * @param config the bundle to be written. Null will be treated as an empty bundle. |
| */ |
| private void saveConfigToXml(String packageName, @NonNull String extraString, int phoneId, |
| CarrierIdentifier carrierId, PersistableBundle config) { |
| if (SubscriptionManager.getSimStateForSlotIndex(phoneId) |
| != TelephonyManager.SIM_STATE_LOADED) { |
| loge("Skip save config because SIM records are not loaded."); |
| return; |
| } |
| |
| final String iccid = getIccIdForPhoneId(phoneId); |
| final int cid = carrierId.getSpecificCarrierId(); |
| if (packageName == null || iccid == null) { |
| loge("Cannot save config with null packageName or iccid."); |
| return; |
| } |
| // b/32668103 Only save to file if config isn't empty. |
| // In case of failure, not caching an empty bundle will |
| // try loading config again on next power on or sim loaded. |
| // Downside is for genuinely empty bundle, will bind and load |
| // on every power on. |
| if (config == null || config.isEmpty()) { |
| return; |
| } |
| |
| final String version = getPackageVersion(packageName); |
| if (version == null) { |
| loge("Failed to get package version for: " + packageName); |
| return; |
| } |
| |
| logdWithLocalLog( |
| "Save config to xml, packagename: " + packageName + " phoneId: " + phoneId); |
| |
| FileOutputStream outFile = null; |
| try { |
| outFile = new FileOutputStream( |
| new File(mContext.getFilesDir(), |
| getFilenameForConfig(packageName, extraString, iccid, cid))); |
| config.putString(KEY_VERSION, version); |
| config.writeToStream(outFile); |
| outFile.flush(); |
| outFile.close(); |
| } catch (IOException e) { |
| loge(e.toString()); |
| } |
| } |
| |
| /** |
| * Reads a bundle from an XML file. |
| * |
| * This restores a bundle that was written with {@link #saveConfigToXml}. This returns the saved |
| * config bundle for the given package and phone ID. |
| * |
| * In case of errors, or if the saved config is from a different package version than the |
| * current version, then null will be returned. |
| * |
| * @param packageName the name of the package from which we fetched this bundle. |
| * @param extraString An extra string to be used in the XML file name. |
| * @param phoneId the phone ID. |
| * @return the bundle from the XML file. Returns null if there is no saved config, the saved |
| * version does not match, or reading config fails. |
| */ |
| private PersistableBundle restoreConfigFromXml(String packageName, @NonNull String extraString, |
| int phoneId) { |
| final String version = getPackageVersion(packageName); |
| if (version == null) { |
| loge("Failed to get package version for: " + packageName); |
| return null; |
| } |
| if (SubscriptionManager.getSimStateForSlotIndex(phoneId) |
| != TelephonyManager.SIM_STATE_LOADED) { |
| loge("Skip restoring config because SIM records are not yet loaded."); |
| return null; |
| } |
| |
| final String iccid = getIccIdForPhoneId(phoneId); |
| final int cid = getSpecificCarrierIdForPhoneId(phoneId); |
| if (packageName == null || iccid == null) { |
| loge("Cannot restore config with null packageName or iccid."); |
| return null; |
| } |
| |
| PersistableBundle restoredBundle = null; |
| File file = null; |
| FileInputStream inFile = null; |
| try { |
| file = new File(mContext.getFilesDir(), |
| getFilenameForConfig(packageName, extraString, iccid, cid)); |
| inFile = new FileInputStream(file); |
| |
| restoredBundle = PersistableBundle.readFromStream(inFile); |
| String savedVersion = restoredBundle.getString(KEY_VERSION); |
| restoredBundle.remove(KEY_VERSION); |
| |
| if (!version.equals(savedVersion)) { |
| loge("Saved version mismatch: " + version + " vs " + savedVersion); |
| restoredBundle = null; |
| } |
| |
| inFile.close(); |
| } catch (FileNotFoundException e) { |
| // Missing file is normal occurrence that might occur with a new sim or when restoring |
| // an override file during boot and should not be treated as an error. |
| if (file != null) logd("File not found: " + file.getPath()); |
| } catch (IOException e) { |
| loge(e.toString()); |
| } |
| |
| return restoredBundle; |
| } |
| |
| /** |
| * Clears cached carrier config. |
| * This deletes all saved XML files associated with the given package name. If packageName is |
| * null, then it deletes all saved XML files. |
| * |
| * @param packageName the name of a carrier package, or null if all cached config should be |
| * cleared. |
| * @return true iff one or more files were deleted. |
| */ |
| private boolean clearCachedConfigForPackage(final String packageName) { |
| File dir = mContext.getFilesDir(); |
| File[] packageFiles = dir.listFiles(new FilenameFilter() { |
| public boolean accept(File dir, String filename) { |
| if (packageName != null) { |
| return filename.startsWith("carrierconfig-" + packageName + "-"); |
| } else { |
| return filename.startsWith("carrierconfig-"); |
| } |
| } |
| }); |
| if (packageFiles == null || packageFiles.length < 1) return false; |
| for (File f : packageFiles) { |
| logd("Deleting " + f.getName()); |
| f.delete(); |
| } |
| return true; |
| } |
| |
| /** Builds a canonical file name for a config file. */ |
| private String getFilenameForConfig(@NonNull String packageName, @NonNull String extraString, |
| @NonNull String iccid, int cid) { |
| // the same carrier should have a single copy of XML file named after carrier id. |
| // However, it's still possible that platform doesn't recognize the current sim carrier, |
| // we will use iccid + carrierid as the canonical file name. carrierid can also handle the |
| // cases SIM OTA resolves to different carrier while iccid remains the same. |
| return "carrierconfig-" + packageName + extraString + "-" + iccid + "-" + cid + ".xml"; |
| } |
| |
| /** Return the current version code of a package, or null if the name is not found. */ |
| private String getPackageVersion(String packageName) { |
| try { |
| PackageInfo info = mContext.getPackageManager().getPackageInfo(packageName, 0); |
| return Long.toString(info.getLongVersionCode()); |
| } catch (PackageManager.NameNotFoundException e) { |
| return null; |
| } |
| } |
| |
| /** |
| * Read up to date config. |
| * |
| * This reads config bundles for the given phoneId. That means getting the latest bundle from |
| * the default app and a privileged carrier app, if present. This will not bind to an app if we |
| * have a saved config file to use instead. |
| */ |
| private void updateConfigForPhoneId(int phoneId) { |
| // Clear in-memory cache for carrier app config, so when carrier app gets uninstalled, no |
| // stale config is left. |
| if (mConfigFromCarrierApp[phoneId] != null && |
| getCarrierPackageForPhoneId(phoneId) == null) { |
| mConfigFromCarrierApp[phoneId] = null; |
| } |
| mHandler.sendMessage(mHandler.obtainMessage(EVENT_DO_FETCH_DEFAULT, phoneId, -1)); |
| } |
| |
| private void onMultiSimConfigChanged() { |
| for (int i = TelephonyManager.from(mContext).getActiveModemCount(); |
| i < mConfigFromDefaultApp.length; i++) { |
| clearConfigForPhone(i, false); |
| } |
| } |
| |
| @Override |
| @NonNull |
| public PersistableBundle getConfigForSubId(int subId, String callingPackage) { |
| return getConfigForSubIdWithFeature(subId, callingPackage, null); |
| } |
| |
| @Override |
| @NonNull |
| public PersistableBundle getConfigForSubIdWithFeature(int subId, String callingPackage, |
| String callingFeatureId) { |
| if (!TelephonyPermissions.checkCallingOrSelfReadPhoneState(mContext, subId, callingPackage, |
| callingFeatureId, "getCarrierConfig")) { |
| return new PersistableBundle(); |
| } |
| |
| int phoneId = SubscriptionManager.getPhoneId(subId); |
| PersistableBundle retConfig = CarrierConfigManager.getDefaultConfig(); |
| if (SubscriptionManager.isValidPhoneId(phoneId)) { |
| PersistableBundle config = mConfigFromDefaultApp[phoneId]; |
| if (config != null) { |
| retConfig.putAll(config); |
| if (getCarrierPackageForPhoneId(phoneId) == null) { |
| retConfig.putBoolean( |
| CarrierConfigManager.KEY_CARRIER_CONFIG_APPLIED_BOOL, true); |
| } |
| } |
| config = mConfigFromCarrierApp[phoneId]; |
| if (config != null) { |
| retConfig.putAll(config); |
| retConfig.putBoolean(CarrierConfigManager.KEY_CARRIER_CONFIG_APPLIED_BOOL, true); |
| } |
| config = mPersistentOverrideConfigs[phoneId]; |
| if (config != null) { |
| retConfig.putAll(config); |
| retConfig.putBoolean(CarrierConfigManager.KEY_CARRIER_CONFIG_APPLIED_BOOL, true); |
| } |
| config = mOverrideConfigs[phoneId]; |
| if (config != null) { |
| retConfig.putAll(config); |
| } |
| } |
| return retConfig; |
| } |
| |
| @Override |
| public void overrideConfig(int subscriptionId, @Nullable PersistableBundle overrides, |
| boolean persistent) { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.MODIFY_PHONE_STATE, null); |
| //TODO: Also check for SHELL UID to restrict this method to testing only (b/131326259) |
| int phoneId = SubscriptionManager.getPhoneId(subscriptionId); |
| if (!SubscriptionManager.isValidPhoneId(phoneId)) { |
| logd("Ignore invalid phoneId: " + phoneId + " for subId: " + subscriptionId); |
| return; |
| } |
| overrideConfig(mOverrideConfigs, phoneId, overrides); |
| |
| if (persistent) { |
| overrideConfig(mPersistentOverrideConfigs, phoneId, overrides); |
| |
| if (overrides != null) { |
| final CarrierIdentifier carrierId = getCarrierIdentifierForPhoneId(phoneId); |
| saveConfigToXml(mPlatformCarrierConfigPackage, OVERRIDE_PACKAGE_ADDITION, phoneId, |
| carrierId, mPersistentOverrideConfigs[phoneId]); |
| } else { |
| final String iccid = getIccIdForPhoneId(phoneId); |
| final int cid = getSpecificCarrierIdForPhoneId(phoneId); |
| String fileName = getFilenameForConfig(mPlatformCarrierConfigPackage, |
| OVERRIDE_PACKAGE_ADDITION, iccid, cid); |
| File fileToDelete = new File(mContext.getFilesDir(), fileName); |
| fileToDelete.delete(); |
| } |
| } |
| notifySubscriptionInfoUpdater(phoneId); |
| } |
| |
| private void overrideConfig(@NonNull PersistableBundle[] currentOverrides, int phoneId, |
| @Nullable PersistableBundle overrides) { |
| if (overrides == null) { |
| currentOverrides[phoneId] = new PersistableBundle(); |
| } else if (currentOverrides[phoneId] == null) { |
| currentOverrides[phoneId] = overrides; |
| } else { |
| currentOverrides[phoneId].putAll(overrides); |
| } |
| } |
| |
| @Override |
| public void notifyConfigChangedForSubId(int subId) { |
| int phoneId = SubscriptionManager.getPhoneId(subId); |
| if (!SubscriptionManager.isValidPhoneId(phoneId)) { |
| logd("Ignore invalid phoneId: " + phoneId + " for subId: " + subId); |
| return; |
| } |
| |
| // Requires the calling app to be either a carrier privileged app for this subId or |
| // system privileged app with MODIFY_PHONE_STATE permission. |
| TelephonyPermissions.enforceCallingOrSelfModifyPermissionOrCarrierPrivilege(mContext, subId, |
| "Require carrier privileges or MODIFY_PHONE_STATE permission."); |
| |
| // This method should block until deleting has completed, so that an error which prevents us |
| // from clearing the cache is passed back to the carrier app. With the files successfully |
| // deleted, this can return and we will eventually bind to the carrier app. |
| String callingPackageName = mContext.getPackageManager().getNameForUid( |
| Binder.getCallingUid()); |
| clearCachedConfigForPackage(callingPackageName); |
| updateConfigForPhoneId(phoneId); |
| } |
| |
| @Override |
| public void updateConfigForPhoneId(int phoneId, String simState) { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.MODIFY_PHONE_STATE, null); |
| logdWithLocalLog("Update config for phoneId: " + phoneId + " simState: " + simState); |
| if (!SubscriptionManager.isValidPhoneId(phoneId)) { |
| return; |
| } |
| // requires Java 7 for switch on string. |
| switch (simState) { |
| case IccCardConstants.INTENT_VALUE_ICC_ABSENT: |
| case IccCardConstants.INTENT_VALUE_ICC_CARD_IO_ERROR: |
| case IccCardConstants.INTENT_VALUE_ICC_CARD_RESTRICTED: |
| case IccCardConstants.INTENT_VALUE_ICC_UNKNOWN: |
| case IccCardConstants.INTENT_VALUE_ICC_NOT_READY: |
| mHandler.sendMessage(mHandler.obtainMessage(EVENT_CLEAR_CONFIG, phoneId, -1)); |
| break; |
| case IccCardConstants.INTENT_VALUE_ICC_LOADED: |
| case IccCardConstants.INTENT_VALUE_ICC_LOCKED: |
| updateConfigForPhoneId(phoneId); |
| break; |
| } |
| } |
| |
| @Override |
| public String getDefaultCarrierServicePackageName() { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE, |
| "getDefaultCarrierServicePackageName"); |
| return mPlatformCarrierConfigPackage; |
| } |
| |
| private void unbindIfBound(Context context, CarrierServiceConnection conn, |
| int phoneId) { |
| if (mServiceBound[phoneId]) { |
| mServiceBound[phoneId] = false; |
| context.unbindService(conn); |
| } |
| } |
| |
| /** |
| * If {@code args} contains {@link #DUMP_ARG_REQUESTING_PACKAGE} and a following package name, |
| * we'll also call {@link IBinder#dump} on the default carrier service (if bound) and the |
| * specified carrier service (if bound). Typically, this is done for connectivity bug reports |
| * where we don't call {@code dumpsys activity service all-non-platform} because that contains |
| * too much info, but we still want to let carrier apps include their diagnostics. |
| */ |
| @Override |
| public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| IndentingPrintWriter indentPW = new IndentingPrintWriter(pw, " "); |
| if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) |
| != PackageManager.PERMISSION_GRANTED) { |
| indentPW.println("Permission Denial: can't dump carrierconfig from from pid=" |
| + Binder.getCallingPid() + ", uid=" + Binder.getCallingUid()); |
| return; |
| } |
| String requestingPackage = null; |
| int requestingPackageIndex = ArrayUtils.indexOf(args, DUMP_ARG_REQUESTING_PACKAGE); |
| if (requestingPackageIndex >= 0 && requestingPackageIndex < args.length - 1 |
| && !TextUtils.isEmpty(args[requestingPackageIndex + 1])) { |
| requestingPackage = args[requestingPackageIndex + 1]; |
| // Throws a SecurityException if the caller is impersonating another app in an effort to |
| // dump extra info (which may contain PII the caller doesn't have a right to). |
| enforceCallerIsSystemOrRequestingPackage(requestingPackage); |
| } |
| |
| indentPW.println("CarrierConfigLoader: " + this); |
| for (int i = 0; i < TelephonyManager.from(mContext).getActiveModemCount(); i++) { |
| indentPW.println("Phone Id = " + i); |
| // display default values in CarrierConfigManager |
| printConfig(CarrierConfigManager.getDefaultConfig(), indentPW, |
| "Default Values from CarrierConfigManager"); |
| // display ConfigFromDefaultApp |
| printConfig(mConfigFromDefaultApp[i], indentPW, "mConfigFromDefaultApp"); |
| // display ConfigFromCarrierApp |
| printConfig(mConfigFromCarrierApp[i], indentPW, "mConfigFromCarrierApp"); |
| printConfig(mPersistentOverrideConfigs[i], indentPW, "mPersistentOverrideConfigs"); |
| printConfig(mOverrideConfigs[i], indentPW, "mOverrideConfigs"); |
| } |
| |
| indentPW.println("CarrierConfigLoadingLog="); |
| mCarrierConfigLoadingLog.dump(fd, indentPW, args); |
| |
| if (requestingPackage != null) { |
| logd("Including default and requesting package " + requestingPackage |
| + " carrier services in dump"); |
| indentPW.println(""); |
| indentPW.println("Connected services"); |
| dumpCarrierServiceIfBound(fd, indentPW, "Default config package", |
| mPlatformCarrierConfigPackage, false /* considerCarrierPrivileges */); |
| dumpCarrierServiceIfBound(fd, indentPW, "Requesting package", requestingPackage, |
| true /* considerCarrierPrivileges */); |
| } |
| } |
| |
| private void printConfig(PersistableBundle configApp, IndentingPrintWriter indentPW, |
| String name) { |
| indentPW.increaseIndent(); |
| if (configApp == null) { |
| indentPW.println(name + " : null "); |
| indentPW.decreaseIndent(); |
| indentPW.println(""); |
| return; |
| } |
| indentPW.println(name + " : "); |
| List<String> sortedKeys = new ArrayList<String>(configApp.keySet()); |
| Collections.sort(sortedKeys); |
| indentPW.increaseIndent(); |
| indentPW.increaseIndent(); |
| for (String key : sortedKeys) { |
| if (configApp.get(key) != null && configApp.get(key) instanceof Object[]) { |
| indentPW.println(key + " = " + |
| Arrays.toString((Object[]) configApp.get(key))); |
| } else if (configApp.get(key) != null && configApp.get(key) instanceof int[]) { |
| indentPW.println(key + " = " + Arrays.toString((int[]) configApp.get(key))); |
| } else { |
| indentPW.println(key + " = " + configApp.get(key)); |
| } |
| } |
| indentPW.decreaseIndent(); |
| indentPW.decreaseIndent(); |
| indentPW.decreaseIndent(); |
| indentPW.println(""); |
| } |
| |
| /** |
| * Passes without problem when one of these conditions is true: |
| * - The caller is a privileged UID (e.g. for dumpstate.cpp generating a bug report, where the |
| * system knows the true caller plumbed in through the {@link android.os.BugreportManager} API). |
| * - The caller's UID matches the supplied package. |
| * |
| * @throws SecurityException if none of the above conditions are met. |
| */ |
| private void enforceCallerIsSystemOrRequestingPackage(String requestingPackage) |
| throws SecurityException { |
| final int callingUid = Binder.getCallingUid(); |
| if (callingUid == Process.ROOT_UID || callingUid == Process.SYSTEM_UID |
| || callingUid == Process.SHELL_UID || callingUid == Process.PHONE_UID) { |
| // Bug reports (dumpstate.cpp) run as SHELL, and let some other privileged UIDs through |
| // as well. |
| return; |
| } |
| // An app is trying to dump extra detail, block it if they aren't who they claim to be. |
| AppOpsManager appOps = mContext.getSystemService(AppOpsManager.class); |
| if (appOps == null) { |
| throw new SecurityException("No AppOps"); |
| } |
| // Will throw a SecurityException if the UID and package don't match. |
| appOps.checkPackage(callingUid, requestingPackage); |
| } |
| |
| /** |
| * Searches for one or more appropriate {@link CarrierService} instances to dump based on the |
| * current connections. |
| * |
| * @param targetPkgName the target package name to dump carrier services for |
| * @param considerCarrierPrivileges if true, allow a carrier service to be dumped if it shares |
| * carrier privileges with {@code targetPkgName}; |
| * otherwise, only dump a carrier service if it is {@code |
| * targetPkgName} |
| */ |
| private void dumpCarrierServiceIfBound(FileDescriptor fd, IndentingPrintWriter indentPW, |
| String prefix, String targetPkgName, boolean considerCarrierPrivileges) { |
| // Null package is possible if it's early in the boot process, there was a recent crash, we |
| // loaded the config from XML most recently, or a SIM slot is empty. Carrier apps with |
| // long-lived bindings should typically get dumped here regardless. Even if an app is being |
| // used for multiple phoneIds, we assume that it's smart enough to handle that on its own, |
| // and that in most cases we'd just be dumping duplicate information and bloating a report. |
| indentPW.increaseIndent(); |
| indentPW.println(prefix + " : " + targetPkgName); |
| Set<String> dumpedPkgNames = new ArraySet<>(mServiceConnection.length); |
| for (CarrierServiceConnection connection : mServiceConnection) { |
| if (connection == null || !SubscriptionManager.isValidPhoneId(connection.phoneId) |
| || TextUtils.isEmpty(connection.pkgName)) { |
| continue; |
| } |
| final String servicePkgName = connection.pkgName; |
| // Note: we intentionally ignore system components here because we should NOT match the |
| // shell caller that's typically used for bug reports via non-BugreportManager triggers. |
| final boolean exactPackageMatch = TextUtils.equals(targetPkgName, servicePkgName); |
| final boolean carrierPrivilegesMatch = |
| considerCarrierPrivileges && hasCarrierPrivileges(targetPkgName, |
| connection.phoneId); |
| if (!exactPackageMatch && !carrierPrivilegesMatch) continue; |
| // Make sure this service is actually alive before trying to dump it. We don't pay |
| // attention to mServiceBound[connection.phoneId] because typically carrier apps will |
| // request long-lived bindings, and even if we unbind the app, it may still be alive due |
| // to CarrierServiceBindHelper. Pull it out as a reference so even if it gets set to |
| // null within the ServiceConnection during unbinding we can avoid an NPE. |
| final IBinder service = connection.service; |
| if (service == null || !service.isBinderAlive() || !service.pingBinder()) continue; |
| // We've got a live service. Last check is just to make sure we don't dump a package |
| // multiple times. |
| if (!dumpedPkgNames.add(servicePkgName)) continue; |
| if (!exactPackageMatch) { |
| logd(targetPkgName + " has carrier privileges on phoneId " + connection.phoneId |
| + ", service provided by " + servicePkgName); |
| indentPW.increaseIndent(); |
| indentPW.println("Proxy : " + servicePkgName); |
| indentPW.decreaseIndent(); |
| } |
| // Flush before we let the app output anything to ensure correct ordering of output. |
| // Internally, Binder#dump calls flush on its printer after finishing so we don't |
| // need to do anything after. |
| indentPW.flush(); |
| try { |
| logd("Dumping " + servicePkgName); |
| // We don't need to give the carrier service any args. |
| connection.service.dump(fd, null /* args */); |
| logd("Done with " + servicePkgName); |
| } catch (RemoteException e) { |
| logd("RemoteException from " + servicePkgName, e); |
| indentPW.increaseIndent(); |
| indentPW.println("RemoteException"); |
| indentPW.increaseIndent(); |
| e.printStackTrace(indentPW); |
| indentPW.decreaseIndent(); |
| indentPW.decreaseIndent(); |
| // We won't retry this package again because now it's in dumpedPkgNames. |
| } |
| indentPW.println(""); |
| } |
| if (dumpedPkgNames.isEmpty()) { |
| indentPW.increaseIndent(); |
| indentPW.println("Not bound"); |
| indentPW.decreaseIndent(); |
| indentPW.println(""); |
| } |
| indentPW.decreaseIndent(); |
| } |
| |
| private boolean hasCarrierPrivileges(String pkgName, int phoneId) { |
| int[] subIds = SubscriptionManager.getSubId(phoneId); |
| if (ArrayUtils.isEmpty(subIds)) { |
| return false; |
| } |
| return TelephonyManager.from(mContext).createForSubscriptionId( |
| subIds[0]).checkCarrierPrivilegesForPackage(pkgName) |
| == TelephonyManager.CARRIER_PRIVILEGE_STATUS_HAS_ACCESS; |
| } |
| |
| private class CarrierServiceConnection implements ServiceConnection { |
| final int phoneId; |
| final String pkgName; |
| final int eventId; |
| IBinder service; |
| |
| CarrierServiceConnection(int phoneId, String pkgName, int eventId) { |
| this.phoneId = phoneId; |
| this.pkgName = pkgName; |
| this.eventId = eventId; |
| } |
| |
| @Override |
| public void onServiceConnected(ComponentName name, IBinder service) { |
| logd("Connected to config app: " + name.flattenToShortString()); |
| this.service = service; |
| mHandler.sendMessage(mHandler.obtainMessage(eventId, phoneId, -1, this)); |
| } |
| |
| @Override |
| public void onServiceDisconnected(ComponentName name) { |
| logd("Disconnected from config app: " + name.flattenToShortString()); |
| this.service = null; |
| } |
| |
| @Override |
| public void onBindingDied(ComponentName name) { |
| logd("Binding died from config app: " + name.flattenToShortString()); |
| this.service = null; |
| } |
| |
| @Override |
| public void onNullBinding(ComponentName name) { |
| logd("Null binding from config app: " + name.flattenToShortString()); |
| this.service = null; |
| } |
| } |
| |
| private class ConfigLoaderBroadcastReceiver extends BroadcastReceiver { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| String action = intent.getAction(); |
| boolean replace = intent.getBooleanExtra(Intent.EXTRA_REPLACING, false); |
| // If replace is true, only care ACTION_PACKAGE_REPLACED. |
| if (replace && !Intent.ACTION_PACKAGE_REPLACED.equals(action)) { |
| return; |
| } |
| |
| switch (action) { |
| case Intent.ACTION_BOOT_COMPLETED: |
| mHandler.sendMessage(mHandler.obtainMessage(EVENT_SYSTEM_UNLOCKED, null)); |
| break; |
| |
| case Intent.ACTION_PACKAGE_ADDED: |
| case Intent.ACTION_PACKAGE_REMOVED: |
| case Intent.ACTION_PACKAGE_REPLACED: |
| int uid = intent.getIntExtra(Intent.EXTRA_UID, -1); |
| String packageName = mContext.getPackageManager().getNameForUid(uid); |
| if (packageName != null) { |
| // We don't have a phoneId for arg1. |
| mHandler.sendMessage( |
| mHandler.obtainMessage(EVENT_PACKAGE_CHANGED, packageName)); |
| } |
| break; |
| } |
| } |
| } |
| |
| private void logd(String msg) { |
| Log.d(LOG_TAG, msg); |
| } |
| |
| private void logd(String msg, Throwable tr) { |
| Log.d(LOG_TAG, msg, tr); |
| } |
| |
| private void logdWithLocalLog(String msg) { |
| Log.d(LOG_TAG, msg); |
| mCarrierConfigLoadingLog.log(msg); |
| } |
| |
| private void loge(String msg) { |
| Log.e(LOG_TAG, msg); |
| mCarrierConfigLoadingLog.log(msg); |
| } |
| } |
