| /* |
| * 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.HandlerExecutor; |
| import android.os.IBinder; |
| import android.os.Looper; |
| 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.telephony.TelephonyRegistryManager; |
| import android.text.TextUtils; |
| import android.util.ArraySet; |
| import android.util.LocalLog; |
| import android.util.Log; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| 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 com.android.telephony.Rlog; |
| |
| 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.Objects; |
| 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. |
| @NonNull private final String mPlatformCarrierConfigPackage; |
| |
| /** The singleton instance. */ |
| @Nullable private static CarrierConfigLoader sInstance; |
| // The context for phone app, passed from PhoneGlobals. |
| @NonNull private Context mContext; |
| |
| // All the states below (array indexed by phoneId) are non-null. But the member of the array |
| // is nullable, when e.g. the config for the phone is not loaded yet |
| // Carrier configs from default app, indexed by phoneID. |
| @NonNull private PersistableBundle[] mConfigFromDefaultApp; |
| // Carrier configs from privileged carrier config app, indexed by phoneID. |
| @NonNull private PersistableBundle[] mConfigFromCarrierApp; |
| // Persistent Carrier configs that are provided via the override test API, indexed by phone ID. |
| @NonNull private PersistableBundle[] mPersistentOverrideConfigs; |
| // Carrier configs that are provided via the override test API, indexed by phone ID. |
| @NonNull private PersistableBundle[] mOverrideConfigs; |
| // Carrier configs to override code default when there is no SIM inserted |
| @NonNull private PersistableBundle mNoSimConfig; |
| // Service connection for binding to config app. |
| @NonNull private CarrierServiceConnection[] mServiceConnection; |
| // Service connection for binding to carrier config app for no SIM config. |
| @NonNull private CarrierServiceConnection[] mServiceConnectionForNoSimConfig; |
| // Whether we are bound to a service for each phone |
| @NonNull private boolean[] mServiceBound; |
| // Whether we are bound to a service for no SIM config |
| @NonNull private boolean[] mServiceBoundForNoSimConfig; |
| // Whether we have sent config change broadcast for each phone id. |
| @NonNull private boolean[] mHasSentConfigChange; |
| // Whether the broadcast was sent from EVENT_SYSTEM_UNLOCKED, to track rebroadcasts |
| @NonNull private boolean[] mFromSystemUnlocked; |
| // CarrierService change monitoring |
| @NonNull private CarrierServiceChangeCallback[] mCarrierServiceChangeCallbacks; |
| |
| // SubscriptionInfoUpdater |
| @NonNull private final SubscriptionInfoUpdater mSubscriptionInfoUpdater; |
| // Broadcast receiver for system events (BootCompleted, MultiSimConfigChanged etc.) |
| @NonNull |
| private final BroadcastReceiver mSystemBroadcastReceiver = new ConfigLoaderBroadcastReceiver(); |
| @NonNull private final LocalLog mCarrierConfigLoadingLog = new LocalLog(100); |
| // Number of phone instances (active modem count) |
| private int mNumPhones; |
| |
| |
| // 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; |
| // Attempt to fetch from default app or read from XML for no SIM case. |
| private static final int EVENT_DO_FETCH_DEFAULT_FOR_NO_SIM_CONFIG = 18; |
| // No SIM config has been loaded from default app (or cache). |
| private static final int EVENT_FETCH_DEFAULT_FOR_NO_SIM_CONFIG_DONE = 19; |
| // Has connected to default app for no SIM config. |
| private static final int EVENT_CONNECTED_TO_DEFAULT_FOR_NO_SIM_CONFIG = 20; |
| // Bind timed out for the default app when trying to fetch no SIM config. |
| private static final int EVENT_BIND_DEFAULT_FOR_NO_SIM_CONFIG_TIMEOUT = 21; |
| // Fetching config timed out from the default app for no SIM config. |
| private static final int EVENT_FETCH_DEFAULT_FOR_NO_SIM_CONFIG_TIMEOUT = 22; |
| // NOTE: any new EVENT_* values must be added to method eventToString(). |
| |
| 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"; |
| |
| // Configs that should always be included when clients calls getConfig[ForSubId] with specified |
| // keys (even configs are not explicitly specified). Those configs have special purpose for the |
| // carrier config APIs to work correctly. |
| private static final String[] CONFIG_SUBSET_METADATA_KEYS = new String[] { |
| CarrierConfigManager.KEY_CARRIER_CONFIG_VERSION_STRING, |
| CarrierConfigManager.KEY_CARRIER_CONFIG_APPLIED_BOOL |
| }; |
| |
| // 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 { |
| ConfigHandler(@NonNull Looper looper) { |
| super(looper); |
| } |
| |
| @Override |
| public void handleMessage(@NonNull Message msg) { |
| final int phoneId = msg.arg1; |
| logdWithLocalLog("mHandler: " + eventToString(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 < mNumPhones; ++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; |
| // Always clear up the cache and re-load config from scratch since the carrier |
| // service change is reliable and specific to the phoneId now. |
| clearCachedConfigForPackage(carrierPackageName); |
| logdWithLocalLog("Package changed: " + carrierPackageName |
| + ", phone=" + phoneId); |
| updateConfigForPhoneId(phoneId); |
| break; |
| } |
| |
| case EVENT_DO_FETCH_DEFAULT: { |
| // 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; |
| } |
| // 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 /*arg2*/, |
| getMessageToken(phoneId)), |
| BIND_TIMEOUT_MILLIS); |
| } else { |
| // Put a stub bundle in place so that the rest of the logic continues |
| // smoothly. |
| mConfigFromDefaultApp[phoneId] = new PersistableBundle(); |
| // 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, getMessageToken(phoneId)); |
| 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); |
| removeMessages(EVENT_FETCH_DEFAULT_TIMEOUT, |
| getMessageToken(phoneId)); |
| // If new service connection has been created, this is stale. |
| if (mServiceConnection[phoneId] != conn) { |
| loge("Received response for stale request."); |
| return; |
| } |
| 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(phoneId, 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 /*arg2*/, |
| getMessageToken(phoneId)), |
| 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, getMessageToken(phoneId)); |
| // 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); |
| } |
| // Put a stub bundle in place so that the rest of the logic continues smoothly. |
| mConfigFromDefaultApp[phoneId] = new PersistableBundle(); |
| 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 /*arg2*/, |
| getMessageToken(phoneId)), |
| BIND_TIMEOUT_MILLIS); |
| } else { |
| // Put a stub bundle in place so that the rest of the logic continues |
| // smoothly. |
| mConfigFromCarrierApp[phoneId] = new PersistableBundle(); |
| // 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, getMessageToken(phoneId)); |
| 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); |
| removeMessages(EVENT_FETCH_CARRIER_TIMEOUT, |
| getMessageToken(phoneId)); |
| // If new service connection has been created, this is stale. |
| if (mServiceConnection[phoneId] != conn) { |
| loge("Received response for stale request."); |
| return; |
| } |
| 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); |
| if (config != null) { |
| mConfigFromCarrierApp[phoneId] = config; |
| } else { |
| logdWithLocalLog("Config from carrier app is null " |
| + "for phoneId " + phoneId); |
| // Put a stub bundle in place so that the rest of the logic |
| // continues smoothly. |
| mConfigFromCarrierApp[phoneId] = new PersistableBundle(); |
| } |
| 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(phoneId, 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 /*arg2*/, |
| getMessageToken(phoneId)), |
| BIND_TIMEOUT_MILLIS); |
| break; |
| } |
| |
| case EVENT_BIND_CARRIER_TIMEOUT: |
| case EVENT_FETCH_CARRIER_TIMEOUT: { |
| loge("Bind/fetch from carrier app timeout, package=" |
| + getCarrierPackageForPhoneId(phoneId)); |
| removeMessages(EVENT_FETCH_CARRIER_TIMEOUT, getMessageToken(phoneId)); |
| // 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); |
| } |
| // Put a stub bundle in place so that the rest of the logic continues smoothly. |
| mConfigFromCarrierApp[phoneId] = new PersistableBundle(); |
| 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; |
| |
| case EVENT_DO_FETCH_DEFAULT_FOR_NO_SIM_CONFIG: { |
| PersistableBundle config = |
| restoreNoSimConfigFromXml(mPlatformCarrierConfigPackage); |
| |
| if (config != null) { |
| logd("Loaded no SIM config from XML. package=" |
| + mPlatformCarrierConfigPackage); |
| mNoSimConfig = config; |
| sendMessage( |
| obtainMessage( |
| EVENT_FETCH_DEFAULT_FOR_NO_SIM_CONFIG_DONE, |
| phoneId, -1)); |
| } else { |
| // No cached config, so fetch it from the default app. |
| if (bindToConfigPackage( |
| mPlatformCarrierConfigPackage, |
| phoneId, |
| EVENT_CONNECTED_TO_DEFAULT_FOR_NO_SIM_CONFIG)) { |
| sendMessageDelayed( |
| obtainMessage( |
| EVENT_BIND_DEFAULT_FOR_NO_SIM_CONFIG_TIMEOUT, |
| phoneId, -1), BIND_TIMEOUT_MILLIS); |
| } else { |
| broadcastConfigChangedIntent(phoneId, false); |
| // TODO: We *must* call unbindService even if bindService returns false. |
| // (And possibly if SecurityException was thrown.) |
| loge("binding to default app to fetch no SIM config: " |
| + mPlatformCarrierConfigPackage + " fails"); |
| } |
| } |
| break; |
| } |
| |
| case EVENT_FETCH_DEFAULT_FOR_NO_SIM_CONFIG_DONE: { |
| broadcastConfigChangedIntent(phoneId, false); |
| break; |
| } |
| |
| case EVENT_BIND_DEFAULT_FOR_NO_SIM_CONFIG_TIMEOUT: |
| case EVENT_FETCH_DEFAULT_FOR_NO_SIM_CONFIG_TIMEOUT: { |
| loge("Bind/fetch time out for no SIM config from " |
| + mPlatformCarrierConfigPackage); |
| removeMessages(EVENT_FETCH_DEFAULT_FOR_NO_SIM_CONFIG_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 (mServiceConnectionForNoSimConfig[phoneId] != null) { |
| // If a ResponseReceiver callback is in the queue when this happens, we will |
| // unbind twice and throw an exception. |
| unbindIfBoundForNoSimConfig(mContext, |
| mServiceConnectionForNoSimConfig[phoneId], phoneId); |
| } |
| broadcastConfigChangedIntent(phoneId, false); |
| break; |
| } |
| |
| case EVENT_CONNECTED_TO_DEFAULT_FOR_NO_SIM_CONFIG: { |
| removeMessages(EVENT_BIND_DEFAULT_FOR_NO_SIM_CONFIG_TIMEOUT); |
| final CarrierServiceConnection conn = (CarrierServiceConnection) msg.obj; |
| // If new service connection has been created, unbind. |
| if (mServiceConnectionForNoSimConfig[phoneId] != conn || conn.service == null) { |
| unbindIfBoundForNoSimConfig(mContext, conn, phoneId); |
| break; |
| } |
| |
| // ResultReceiver callback will execute in this Handler's thread. |
| final ResultReceiver resultReceiver = |
| new ResultReceiver(this) { |
| @Override |
| public void onReceiveResult(int resultCode, Bundle resultData) { |
| unbindIfBoundForNoSimConfig(mContext, conn, phoneId); |
| // If new service connection has been created, this is stale. |
| if (mServiceConnectionForNoSimConfig[phoneId] != conn) { |
| loge("Received response for stale request."); |
| return; |
| } |
| removeMessages(EVENT_FETCH_DEFAULT_FOR_NO_SIM_CONFIG_TIMEOUT); |
| if (resultCode == RESULT_ERROR || resultData == null) { |
| // On error, abort config fetching. |
| loge("Failed to get no SIM carrier config"); |
| return; |
| } |
| PersistableBundle config = |
| resultData.getParcelable(KEY_CONFIG_BUNDLE); |
| saveNoSimConfigToXml(mPlatformCarrierConfigPackage, config); |
| mNoSimConfig = config; |
| sendMessage( |
| obtainMessage( |
| EVENT_FETCH_DEFAULT_FOR_NO_SIM_CONFIG_DONE, |
| phoneId, -1)); |
| } |
| }; |
| // Now fetch the config asynchronously from the ICarrierService. |
| try { |
| ICarrierService carrierService = |
| ICarrierService.Stub.asInterface(conn.service); |
| carrierService.getCarrierConfig(phoneId, null, resultReceiver); |
| logdWithLocalLog("Fetch no sim config from default app: " |
| + mPlatformCarrierConfigPackage); |
| } catch (RemoteException e) { |
| loge("Failed to get no sim carrier config from default app: " + |
| mPlatformCarrierConfigPackage + " err: " + e.toString()); |
| unbindIfBoundForNoSimConfig(mContext, conn, phoneId); |
| break; // So we don't set a timeout. |
| } |
| sendMessageDelayed( |
| obtainMessage( |
| EVENT_FETCH_DEFAULT_FOR_NO_SIM_CONFIG_TIMEOUT, |
| phoneId, -1), BIND_TIMEOUT_MILLIS); |
| break; |
| } |
| } |
| } |
| } |
| |
| @NonNull private final Handler mHandler; |
| |
| /** |
| * Constructs a CarrierConfigLoader, registers it as a service, and registers a broadcast |
| * receiver for relevant events. |
| */ |
| @VisibleForTesting |
| /* package */ CarrierConfigLoader(@NonNull Context context, |
| @NonNull SubscriptionInfoUpdater subscriptionInfoUpdater, @NonNull Looper looper) { |
| mContext = context; |
| mPlatformCarrierConfigPackage = |
| mContext.getString(R.string.platform_carrier_config_package); |
| mHandler = new ConfigHandler(looper); |
| |
| IntentFilter systemEventsFilter = new IntentFilter(); |
| systemEventsFilter.addAction(Intent.ACTION_BOOT_COMPLETED); |
| systemEventsFilter.addAction(TelephonyManager.ACTION_MULTI_SIM_CONFIG_CHANGED); |
| context.registerReceiver(mSystemBroadcastReceiver, systemEventsFilter); |
| |
| mNumPhones = TelephonyManager.from(context).getActiveModemCount(); |
| mConfigFromDefaultApp = new PersistableBundle[mNumPhones]; |
| mConfigFromCarrierApp = new PersistableBundle[mNumPhones]; |
| mPersistentOverrideConfigs = new PersistableBundle[mNumPhones]; |
| mOverrideConfigs = new PersistableBundle[mNumPhones]; |
| mNoSimConfig = new PersistableBundle(); |
| mServiceConnection = new CarrierServiceConnection[mNumPhones]; |
| mServiceBound = new boolean[mNumPhones]; |
| mHasSentConfigChange = new boolean[mNumPhones]; |
| mFromSystemUnlocked = new boolean[mNumPhones]; |
| mServiceConnectionForNoSimConfig = new CarrierServiceConnection[mNumPhones]; |
| mServiceBoundForNoSimConfig = new boolean[mNumPhones]; |
| mCarrierServiceChangeCallbacks = new CarrierServiceChangeCallback[mNumPhones]; |
| for (int phoneId = 0; phoneId < mNumPhones; phoneId++) { |
| mCarrierServiceChangeCallbacks[phoneId] = new CarrierServiceChangeCallback(phoneId); |
| TelephonyManager.from(context).registerCarrierPrivilegesCallback(phoneId, |
| new HandlerExecutor(mHandler), mCarrierServiceChangeCallbacks[phoneId]); |
| } |
| logd("CarrierConfigLoader has started"); |
| mSubscriptionInfoUpdater = subscriptionInfoUpdater; |
| 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}. |
| */ |
| @NonNull |
| /* package */ static CarrierConfigLoader init(@NonNull Context context) { |
| synchronized (CarrierConfigLoader.class) { |
| if (sInstance == null) { |
| sInstance = new CarrierConfigLoader(context, |
| PhoneFactory.getSubscriptionInfoUpdater(), Looper.myLooper()); |
| // Make this service available through ServiceManager. |
| TelephonyFrameworkInitializer.getTelephonyServiceManager() |
| .getCarrierConfigServiceRegisterer().register(sInstance); |
| } else { |
| Log.wtf(LOG_TAG, "init() called multiple times! sInstance = " + sInstance); |
| } |
| return sInstance; |
| } |
| } |
| |
| @VisibleForTesting |
| /* package */ void clearConfigForPhone(int phoneId, boolean fetchNoSimConfig) { |
| /* 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 (fetchNoSimConfig) { |
| // To fetch no SIM config |
| mHandler.sendMessage( |
| mHandler.obtainMessage( |
| EVENT_DO_FETCH_DEFAULT_FOR_NO_SIM_CONFIG, phoneId, -1)); |
| } |
| } |
| |
| 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) { |
| int subId = SubscriptionManager.INVALID_SUBSCRIPTION_ID; |
| int carrierId = TelephonyManager.UNKNOWN_CARRIER_ID; |
| int specificCarrierId = TelephonyManager.UNKNOWN_CARRIER_ID; |
| |
| 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 = getSimApplicationStateForPhone(phoneId); |
| // Include subId/carrier id extra only if SIM records are loaded |
| if (simApplicationState != TelephonyManager.SIM_STATE_UNKNOWN |
| && simApplicationState != TelephonyManager.SIM_STATE_NOT_READY) { |
| subId = SubscriptionManager.getSubscriptionId(phoneId); |
| carrierId = getCarrierIdForPhoneId(phoneId); |
| specificCarrierId = getSpecificCarrierIdForPhoneId(phoneId); |
| intent.putExtra(TelephonyManager.EXTRA_SPECIFIC_CARRIER_ID, specificCarrierId); |
| SubscriptionManager.putPhoneIdAndSubIdExtra(intent, phoneId); |
| intent.putExtra(TelephonyManager.EXTRA_CARRIER_ID, carrierId); |
| } |
| } |
| intent.putExtra(CarrierConfigManager.EXTRA_SLOT_INDEX, phoneId); |
| intent.putExtra(CarrierConfigManager.EXTRA_REBROADCAST_ON_UNLOCK, |
| mFromSystemUnlocked[phoneId]); |
| |
| TelephonyRegistryManager trm = mContext.getSystemService(TelephonyRegistryManager.class); |
| // Unlike broadcast, we wouldn't notify registrants on carrier config change when device is |
| // unlocked. Only real carrier config change will send the notification to registrants. |
| if (trm != null && !mFromSystemUnlocked[phoneId]) { |
| trm.notifyCarrierConfigChanged(phoneId, subId, carrierId, specificCarrierId); |
| } |
| |
| mContext.sendBroadcastAsUser(intent, UserHandle.ALL); |
| |
| if (SubscriptionManager.isValidSubscriptionId(subId)) { |
| logd("Broadcast CARRIER_CONFIG_CHANGED for phone " + phoneId + ", subId=" + subId); |
| } else { |
| logd("Broadcast CARRIER_CONFIG_CHANGED for phone " + phoneId); |
| } |
| mHasSentConfigChange[phoneId] = true; |
| mFromSystemUnlocked[phoneId] = false; |
| } |
| |
| private int getSimApplicationStateForPhone(int phoneId) { |
| int simApplicationState = TelephonyManager.SIM_STATE_UNKNOWN; |
| int subId = SubscriptionManager.getSubscriptionId(phoneId); |
| if (SubscriptionManager.isValidSubscriptionId(subId)) { |
| TelephonyManager telMgr = TelephonyManager.from(mContext) |
| .createForSubscriptionId(subId); |
| simApplicationState = telMgr.getSimApplicationState(); |
| } |
| return simApplicationState; |
| } |
| |
| /** Binds to the default or carrier config app. */ |
| private boolean bindToConfigPackage(@NonNull String pkgName, int phoneId, int eventId) { |
| logdWithLocalLog("Binding to " + pkgName + " for phone " + phoneId); |
| Intent carrierService = new Intent(CarrierService.CARRIER_SERVICE_INTERFACE); |
| carrierService.setPackage(pkgName); |
| CarrierServiceConnection serviceConnection = new CarrierServiceConnection( |
| phoneId, pkgName, eventId); |
| if (eventId == EVENT_CONNECTED_TO_DEFAULT_FOR_NO_SIM_CONFIG) { |
| mServiceConnectionForNoSimConfig[phoneId] = serviceConnection; |
| } else { |
| mServiceConnection[phoneId] = serviceConnection; |
| } |
| try { |
| if (mContext.bindService(carrierService, serviceConnection, |
| Context.BIND_AUTO_CREATE)) { |
| if (eventId == EVENT_CONNECTED_TO_DEFAULT_FOR_NO_SIM_CONFIG) { |
| mServiceBoundForNoSimConfig[phoneId] = true; |
| } else { |
| mServiceBound[phoneId] = true; |
| } |
| return true; |
| } else { |
| return false; |
| } |
| } catch (SecurityException ex) { |
| return false; |
| } |
| } |
| |
| @VisibleForTesting |
| @NonNull |
| /* package */ 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 privileged carrier app, or null if there is none. */ |
| @Nullable |
| private String getCarrierPackageForPhoneId(int phoneId) { |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| return TelephonyManager.from(mContext) |
| .getCarrierServicePackageNameForLogicalSlot(phoneId); |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| @Nullable |
| 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. |
| * @param isNoSimConfig whether this is invoked for noSimConfig or not. |
| */ |
| private void saveConfigToXml(@Nullable String packageName, @NonNull String extraString, |
| int phoneId, @Nullable CarrierIdentifier carrierId, @NonNull PersistableBundle config, |
| boolean isNoSimConfig) { |
| if (packageName == null) { |
| loge("Cannot save config with null packageName"); |
| return; |
| } |
| |
| String fileName; |
| if (isNoSimConfig) { |
| fileName = getFilenameForNoSimConfig(packageName); |
| } else { |
| if (TelephonyManager.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 != null ? carrierId.getSpecificCarrierId() |
| : TelephonyManager.UNKNOWN_CARRIER_ID; |
| if (iccid == null) { |
| loge("Cannot save config with null iccid."); |
| return; |
| } |
| fileName = getFilenameForConfig(packageName, extraString, iccid, cid); |
| } |
| |
| // 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(), fileName)); |
| config.putString(KEY_VERSION, version); |
| config.writeToStream(outFile); |
| outFile.flush(); |
| outFile.close(); |
| } catch (IOException e) { |
| loge(e.toString()); |
| } |
| } |
| |
| @VisibleForTesting |
| /* package */ void saveConfigToXml(@Nullable String packageName, @NonNull String extraString, |
| int phoneId, @NonNull CarrierIdentifier carrierId, @NonNull PersistableBundle config) { |
| saveConfigToXml(packageName, extraString, phoneId, carrierId, config, false); |
| } |
| |
| @VisibleForTesting |
| /* package */ void saveNoSimConfigToXml(@Nullable String packageName, |
| @NonNull PersistableBundle config) { |
| saveConfigToXml(packageName, "", -1, null, config, true); |
| } |
| |
| /** |
| * 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. |
| * @param isNoSimConfig whether this is invoked for noSimConfig or not. |
| * @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. |
| */ |
| @Nullable |
| private PersistableBundle restoreConfigFromXml(@Nullable String packageName, |
| @NonNull String extraString, int phoneId, boolean isNoSimConfig) { |
| if (packageName == null) { |
| loge("Cannot restore config with null packageName"); |
| } |
| final String version = getPackageVersion(packageName); |
| if (version == null) { |
| loge("Failed to get package version for: " + packageName); |
| return null; |
| } |
| |
| String fileName; |
| String iccid = null; |
| if (isNoSimConfig) { |
| fileName = getFilenameForNoSimConfig(packageName); |
| } else { |
| if (TelephonyManager.getSimStateForSlotIndex(phoneId) |
| != TelephonyManager.SIM_STATE_LOADED) { |
| loge("Skip restore config because SIM records are not loaded."); |
| return null; |
| } |
| |
| iccid = getIccIdForPhoneId(phoneId); |
| final int cid = getSpecificCarrierIdForPhoneId(phoneId); |
| if (iccid == null) { |
| loge("Cannot restore config with null iccid."); |
| return null; |
| } |
| fileName = getFilenameForConfig(packageName, extraString, iccid, cid); |
| } |
| |
| PersistableBundle restoredBundle = null; |
| File file = null; |
| FileInputStream inFile = null; |
| try { |
| file = new File(mContext.getFilesDir(),fileName); |
| 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) { |
| if (isNoSimConfig) { |
| logd("File not found: " + file.getPath()); |
| } else { |
| String filePath = file.getPath(); |
| filePath = getFilePathForLogging(filePath, iccid); |
| logd("File not found : " + filePath); |
| } |
| } |
| } catch (IOException e) { |
| loge(e.toString()); |
| } |
| |
| return restoredBundle; |
| } |
| |
| /** |
| * This method will mask most part of iccid in the filepath for logging on userbuild |
| */ |
| @NonNull |
| private String getFilePathForLogging(@Nullable String filePath, @Nullable String iccid) { |
| // If loggable then return with actual file path |
| if (Rlog.isLoggable(LOG_TAG, Log.VERBOSE)) { |
| return filePath; |
| } |
| String path = filePath; |
| int length = (iccid != null) ? iccid.length() : 0; |
| if (length > 5 && filePath != null) { |
| path = filePath.replace(iccid.substring(5), "***************"); |
| } |
| return path; |
| } |
| |
| @Nullable |
| private PersistableBundle restoreConfigFromXml(@Nullable String packageName, |
| @NonNull String extraString, int phoneId) { |
| return restoreConfigFromXml(packageName, extraString, phoneId, false); |
| } |
| |
| @Nullable |
| private PersistableBundle restoreNoSimConfigFromXml(@Nullable String packageName) { |
| return restoreConfigFromXml(packageName, "", -1, true); |
| } |
| |
| /** |
| * 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(@Nullable 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. */ |
| @NonNull |
| private static 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"; |
| } |
| |
| /** Builds a canonical file name for no SIM config file. */ |
| @NonNull |
| private String getFilenameForNoSimConfig(@NonNull String packageName) { |
| return "carrierconfig-" + packageName + "-" + "nosim" + ".xml"; |
| } |
| |
| /** Return the current version code of a package, or null if the name is not found. */ |
| @Nullable |
| private String getPackageVersion(@NonNull 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) { |
| mHandler.sendMessage(mHandler.obtainMessage(EVENT_DO_FETCH_DEFAULT, phoneId, -1)); |
| } |
| |
| private void onMultiSimConfigChanged() { |
| int oldNumPhones = mNumPhones; |
| mNumPhones = TelephonyManager.from(mContext).getActiveModemCount(); |
| if (mNumPhones == oldNumPhones) { |
| return; |
| } |
| logdWithLocalLog("mNumPhones change from " + oldNumPhones + " to " + mNumPhones); |
| |
| // If DS -> SS switch, release the resources BEFORE truncating the arrays to avoid leaking |
| for (int phoneId = mNumPhones; phoneId < oldNumPhones; phoneId++) { |
| if (mServiceConnection[phoneId] != null) { |
| unbindIfBound(mContext, mServiceConnection[phoneId], phoneId); |
| } |
| if (mServiceConnectionForNoSimConfig[phoneId] != null) { |
| unbindIfBoundForNoSimConfig(mContext, mServiceConnectionForNoSimConfig[phoneId], |
| phoneId); |
| } |
| } |
| |
| // The phone to slot mapping may change, unregister here and re-register callbacks later |
| for (int phoneId = 0; phoneId < oldNumPhones; phoneId++) { |
| if (mCarrierServiceChangeCallbacks[phoneId] != null) { |
| TelephonyManager.from(mContext).unregisterCarrierPrivilegesCallback( |
| mCarrierServiceChangeCallbacks[phoneId]); |
| } |
| } |
| |
| // Copy the original arrays, truncate or padding with zeros (if necessary) to new length |
| mConfigFromDefaultApp = Arrays.copyOf(mConfigFromDefaultApp, mNumPhones); |
| mConfigFromCarrierApp = Arrays.copyOf(mConfigFromCarrierApp, mNumPhones); |
| mPersistentOverrideConfigs = Arrays.copyOf(mPersistentOverrideConfigs, mNumPhones); |
| mOverrideConfigs = Arrays.copyOf(mOverrideConfigs, mNumPhones); |
| mServiceConnection = Arrays.copyOf(mServiceConnection, mNumPhones); |
| mServiceConnectionForNoSimConfig = |
| Arrays.copyOf(mServiceConnectionForNoSimConfig, mNumPhones); |
| mServiceBound = Arrays.copyOf(mServiceBound, mNumPhones); |
| mServiceBoundForNoSimConfig = Arrays.copyOf(mServiceBoundForNoSimConfig, mNumPhones); |
| mHasSentConfigChange = Arrays.copyOf(mHasSentConfigChange, mNumPhones); |
| mFromSystemUnlocked = Arrays.copyOf(mFromSystemUnlocked, mNumPhones); |
| mCarrierServiceChangeCallbacks = Arrays.copyOf(mCarrierServiceChangeCallbacks, mNumPhones); |
| |
| // Load the config for all the phones and re-register callback AFTER padding the arrays. |
| for (int phoneId = 0; phoneId < mNumPhones; phoneId++) { |
| updateConfigForPhoneId(phoneId); |
| mCarrierServiceChangeCallbacks[phoneId] = new CarrierServiceChangeCallback(phoneId); |
| TelephonyManager.from(mContext).registerCarrierPrivilegesCallback(phoneId, |
| new HandlerExecutor(mHandler), mCarrierServiceChangeCallbacks[phoneId]); |
| } |
| } |
| |
| @Override |
| @NonNull |
| public PersistableBundle getConfigForSubId(int subscriptionId, @NonNull String callingPackage) { |
| return getConfigForSubIdWithFeature(subscriptionId, callingPackage, null); |
| } |
| |
| @Override |
| @NonNull |
| public PersistableBundle getConfigForSubIdWithFeature(int subscriptionId, |
| @NonNull String callingPackage, @Nullable String callingFeatureId) { |
| if (!TelephonyPermissions.checkCallingOrSelfReadPhoneState(mContext, subscriptionId, |
| callingPackage, callingFeatureId, "getCarrierConfig")) { |
| return new PersistableBundle(); |
| } |
| |
| int phoneId = SubscriptionManager.getPhoneId(subscriptionId); |
| PersistableBundle retConfig = CarrierConfigManager.getDefaultConfig(); |
| if (SubscriptionManager.isValidPhoneId(phoneId)) { |
| PersistableBundle config = mConfigFromDefaultApp[phoneId]; |
| if (config != null) { |
| retConfig.putAll(config); |
| } |
| config = mConfigFromCarrierApp[phoneId]; |
| if (config != null) { |
| retConfig.putAll(config); |
| } |
| config = mPersistentOverrideConfigs[phoneId]; |
| if (config != null) { |
| retConfig.putAll(config); |
| } |
| config = mOverrideConfigs[phoneId]; |
| if (config != null) { |
| retConfig.putAll(config); |
| } |
| // Ignore the theoretical case of the default app not being present since that won't |
| // work in CarrierConfigLoader today. |
| final boolean allConfigsApplied = |
| (mConfigFromCarrierApp[phoneId] != null |
| || getCarrierPackageForPhoneId(phoneId) == null) |
| && mConfigFromDefaultApp[phoneId] != null; |
| retConfig.putBoolean( |
| CarrierConfigManager.KEY_CARRIER_CONFIG_APPLIED_BOOL, allConfigsApplied); |
| } else { |
| if (mNoSimConfig != null) { |
| retConfig.putAll(mNoSimConfig); |
| } |
| } |
| return retConfig; |
| } |
| |
| @Override |
| @NonNull |
| public PersistableBundle getConfigSubsetForSubIdWithFeature(int subscriptionId, |
| @NonNull String callingPackage, @Nullable String callingFeatureId, |
| @NonNull String[] keys) { |
| Objects.requireNonNull(callingPackage, "Calling package must be non-null"); |
| Objects.requireNonNull(keys, "Config keys must be non-null"); |
| enforceCallerIsSystemOrRequestingPackage(callingPackage); |
| |
| // Permission check is performed inside and an empty bundle will return on failure. |
| // No SecurityException thrown here since most clients expect to retrieve the overridden |
| // value if present or use default one if not |
| PersistableBundle allConfigs = getConfigForSubIdWithFeature(subscriptionId, callingPackage, |
| callingFeatureId); |
| if (allConfigs.isEmpty()) { |
| return allConfigs; |
| } |
| for (String key : keys) { |
| Objects.requireNonNull(key, "Config key must be non-null"); |
| } |
| |
| PersistableBundle configSubset = new PersistableBundle( |
| keys.length + CONFIG_SUBSET_METADATA_KEYS.length); |
| for (String carrierConfigKey : keys) { |
| Object value = allConfigs.get(carrierConfigKey); |
| if (value == null) { |
| // Filter out keys without values. |
| // In history, many AOSP or OEMs/carriers private configs didn't provide default |
| // values. We have to continue supporting them for now. See b/261776046 for details. |
| continue; |
| } |
| // Config value itself could be PersistableBundle which requires different API to put |
| if (value instanceof PersistableBundle) { |
| configSubset.putPersistableBundle(carrierConfigKey, (PersistableBundle) value); |
| } else { |
| configSubset.putObject(carrierConfigKey, value); |
| } |
| } |
| |
| // Configs in CONFIG_SUBSET_ALWAYS_INCLUDED_KEYS should always be included |
| for (String generalKey : CONFIG_SUBSET_METADATA_KEYS) { |
| configSubset.putObject(generalKey, allConfigs.get(generalKey)); |
| } |
| |
| return configSubset; |
| } |
| |
| @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); |
| throw new IllegalArgumentException( |
| "Invalid phoneId " + phoneId + " for subId " + subscriptionId); |
| } |
| // Post to run on handler thread on which all states should be confined. |
| mHandler.post(() -> { |
| 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 subscriptionId) { |
| // 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, |
| subscriptionId, "Require carrier privileges or MODIFY_PHONE_STATE permission."); |
| |
| int phoneId = SubscriptionManager.getPhoneId(subscriptionId); |
| if (!SubscriptionManager.isValidPhoneId(phoneId)) { |
| logd("Ignore invalid phoneId: " + phoneId + " for subId: " + subscriptionId); |
| throw new IllegalArgumentException( |
| "Invalid phoneId " + phoneId + " for subId " + subscriptionId); |
| } |
| |
| // 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, @NonNull String simState) { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.MODIFY_PHONE_STATE, null); |
| logdWithLocalLog("Update config for phoneId: " + phoneId + " simState: " + simState); |
| if (!SubscriptionManager.isValidPhoneId(phoneId)) { |
| throw new IllegalArgumentException("Invalid phoneId: " + phoneId); |
| } |
| // 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 |
| @NonNull |
| public String getDefaultCarrierServicePackageName() { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE, |
| "getDefaultCarrierServicePackageName"); |
| return mPlatformCarrierConfigPackage; |
| } |
| |
| @VisibleForTesting |
| @NonNull |
| /* package */ Handler getHandler() { |
| return mHandler; |
| } |
| |
| @VisibleForTesting |
| @Nullable |
| /* package */ PersistableBundle getConfigFromDefaultApp(int phoneId) { |
| return mConfigFromDefaultApp[phoneId]; |
| } |
| |
| @VisibleForTesting |
| @Nullable |
| /* package */ PersistableBundle getConfigFromCarrierApp(int phoneId) { |
| return mConfigFromCarrierApp[phoneId]; |
| } |
| |
| @VisibleForTesting |
| @NonNull |
| /* package */ PersistableBundle getNoSimConfig() { |
| return mNoSimConfig; |
| } |
| |
| @VisibleForTesting |
| @Nullable |
| /* package */ PersistableBundle getOverrideConfig(int phoneId) { |
| return mOverrideConfigs[phoneId]; |
| } |
| |
| // TODO(b/185129900): always call unbindService after bind, no matter if it succeeded |
| private void unbindIfBound(@NonNull Context context, @NonNull CarrierServiceConnection conn, |
| int phoneId) { |
| if (mServiceBound[phoneId]) { |
| mServiceBound[phoneId] = false; |
| context.unbindService(conn); |
| } |
| } |
| |
| private void unbindIfBoundForNoSimConfig(@NonNull Context context, |
| @NonNull CarrierServiceConnection conn, int phoneId) { |
| if (mServiceBoundForNoSimConfig[phoneId]) { |
| mServiceBoundForNoSimConfig[phoneId] = false; |
| context.unbindService(conn); |
| } |
| } |
| |
| /** |
| * Returns a boxed Integer object for phoneId, services as message token to distinguish messages |
| * with same code when calling {@link Handler#removeMessages(int, Object)}. |
| */ |
| @NonNull |
| private Integer getMessageToken(int phoneId) { |
| if (phoneId < -128 || phoneId > 127) { |
| throw new IllegalArgumentException("phoneId should be in range [-128, 127], inclusive"); |
| } |
| // Integer#valueOf guarantees the integers within [-128, 127] are cached and thus memory |
| // comparison (==) returns true for the same integer. |
| return Integer.valueOf(phoneId); |
| } |
| |
| /** |
| * 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(@NonNull FileDescriptor fd, @NonNull PrintWriter pw, @NonNull 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 < mNumPhones; 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"); |
| } |
| |
| printConfig(mNoSimConfig, indentPW, "mNoSimConfig"); |
| 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(@NonNull PersistableBundle configApp, |
| @NonNull IndentingPrintWriter indentPW, @NonNull 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(@NonNull 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(@NonNull FileDescriptor fd, |
| @NonNull IndentingPrintWriter indentPW, @NonNull String prefix, |
| @NonNull 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(@NonNull String pkgName, int phoneId) { |
| int subId = SubscriptionManager.getSubscriptionId(phoneId); |
| if (!SubscriptionManager.isValidSubscriptionId(subId)) { |
| return false; |
| } |
| return TelephonyManager.from(mContext).createForSubscriptionId(subId) |
| .checkCarrierPrivilegesForPackage(pkgName) |
| == TelephonyManager.CARRIER_PRIVILEGE_STATUS_HAS_ACCESS; |
| } |
| |
| private class CarrierServiceConnection implements ServiceConnection { |
| final int phoneId; |
| @NonNull final String pkgName; |
| final int eventId; |
| IBinder service; |
| |
| CarrierServiceConnection(int phoneId, @NonNull String pkgName, int eventId) { |
| this.phoneId = phoneId; |
| this.pkgName = pkgName; |
| this.eventId = eventId; |
| } |
| |
| @Override |
| public void onServiceConnected(@NonNull ComponentName name, @NonNull IBinder service) { |
| logd("Connected to config app: " + name.flattenToShortString()); |
| this.service = service; |
| mHandler.sendMessage(mHandler.obtainMessage(eventId, phoneId, -1, this)); |
| } |
| |
| @Override |
| public void onServiceDisconnected(@NonNull ComponentName name) { |
| logd("Disconnected from config app: " + name.flattenToShortString()); |
| this.service = null; |
| } |
| |
| @Override |
| public void onBindingDied(@NonNull ComponentName name) { |
| logd("Binding died from config app: " + name.flattenToShortString()); |
| this.service = null; |
| } |
| |
| @Override |
| public void onNullBinding(@NonNull ComponentName name) { |
| logd("Null binding from config app: " + name.flattenToShortString()); |
| this.service = null; |
| } |
| } |
| |
| private class ConfigLoaderBroadcastReceiver extends BroadcastReceiver { |
| @Override |
| public void onReceive(@NonNull Context context, @NonNull Intent intent) { |
| switch (intent.getAction()) { |
| case Intent.ACTION_BOOT_COMPLETED: |
| mHandler.sendMessage(mHandler.obtainMessage(EVENT_SYSTEM_UNLOCKED, null)); |
| break; |
| |
| case TelephonyManager.ACTION_MULTI_SIM_CONFIG_CHANGED: |
| mHandler.sendEmptyMessage(EVENT_MULTI_SIM_CONFIG_CHANGED); |
| break; |
| } |
| } |
| } |
| |
| private class CarrierServiceChangeCallback implements |
| TelephonyManager.CarrierPrivilegesCallback { |
| final int mPhoneId; |
| // CarrierPrivilegesCallback will be triggered upon registration. Filter the first callback |
| // here since we really care of the *change* of carrier service instead of the content |
| private boolean mHasSentServiceChangeCallback; |
| |
| CarrierServiceChangeCallback(int phoneId) { |
| this.mPhoneId = phoneId; |
| this.mHasSentServiceChangeCallback = false; |
| } |
| |
| @Override |
| public void onCarrierPrivilegesChanged( |
| @androidx.annotation.NonNull Set<String> privilegedPackageNames, |
| @androidx.annotation.NonNull Set<Integer> privilegedUids) { |
| // Ignored, not interested here |
| } |
| |
| @Override |
| public void onCarrierServiceChanged( |
| @androidx.annotation.Nullable String carrierServicePackageName, |
| int carrierServiceUid) { |
| // Ignore the first callback which is triggered upon registration |
| if (!mHasSentServiceChangeCallback) { |
| mHasSentServiceChangeCallback = true; |
| return; |
| } |
| mHandler.sendMessage( |
| mHandler.obtainMessage(EVENT_PACKAGE_CHANGED, mPhoneId, -1, |
| carrierServicePackageName)); |
| } |
| } |
| |
| // Get readable string for the message code supported in this class. |
| @NonNull |
| private static String eventToString(int code) { |
| switch (code) { |
| case EVENT_CLEAR_CONFIG: |
| return "EVENT_CLEAR_CONFIG"; |
| case EVENT_CONNECTED_TO_DEFAULT: |
| return "EVENT_CONNECTED_TO_DEFAULT"; |
| case EVENT_CONNECTED_TO_CARRIER: |
| return "EVENT_CONNECTED_TO_CARRIER"; |
| case EVENT_FETCH_DEFAULT_DONE: |
| return "EVENT_FETCH_DEFAULT_DONE"; |
| case EVENT_FETCH_CARRIER_DONE: |
| return "EVENT_FETCH_CARRIER_DONE"; |
| case EVENT_DO_FETCH_DEFAULT: |
| return "EVENT_DO_FETCH_DEFAULT"; |
| case EVENT_DO_FETCH_CARRIER: |
| return "EVENT_DO_FETCH_CARRIER"; |
| case EVENT_PACKAGE_CHANGED: |
| return "EVENT_PACKAGE_CHANGED"; |
| case EVENT_BIND_DEFAULT_TIMEOUT: |
| return "EVENT_BIND_DEFAULT_TIMEOUT"; |
| case EVENT_BIND_CARRIER_TIMEOUT: |
| return "EVENT_BIND_CARRIER_TIMEOUT"; |
| case EVENT_CHECK_SYSTEM_UPDATE: |
| return "EVENT_CHECK_SYSTEM_UPDATE"; |
| case EVENT_SYSTEM_UNLOCKED: |
| return "EVENT_SYSTEM_UNLOCKED"; |
| case EVENT_FETCH_DEFAULT_TIMEOUT: |
| return "EVENT_FETCH_DEFAULT_TIMEOUT"; |
| case EVENT_FETCH_CARRIER_TIMEOUT: |
| return "EVENT_FETCH_CARRIER_TIMEOUT"; |
| case EVENT_SUBSCRIPTION_INFO_UPDATED: |
| return "EVENT_SUBSCRIPTION_INFO_UPDATED"; |
| case EVENT_MULTI_SIM_CONFIG_CHANGED: |
| return "EVENT_MULTI_SIM_CONFIG_CHANGED"; |
| case EVENT_DO_FETCH_DEFAULT_FOR_NO_SIM_CONFIG: |
| return "EVENT_DO_FETCH_DEFAULT_FOR_NO_SIM_CONFIG"; |
| case EVENT_FETCH_DEFAULT_FOR_NO_SIM_CONFIG_DONE: |
| return "EVENT_FETCH_DEFAULT_FOR_NO_SIM_CONFIG_DONE"; |
| case EVENT_CONNECTED_TO_DEFAULT_FOR_NO_SIM_CONFIG: |
| return "EVENT_CONNECTED_TO_DEFAULT_FOR_NO_SIM_CONFIG"; |
| case EVENT_BIND_DEFAULT_FOR_NO_SIM_CONFIG_TIMEOUT: |
| return "EVENT_BIND_DEFAULT_FOR_NO_SIM_CONFIG_TIMEOUT"; |
| case EVENT_FETCH_DEFAULT_FOR_NO_SIM_CONFIG_TIMEOUT: |
| return "EVENT_FETCH_DEFAULT_FOR_NO_SIM_CONFIG_TIMEOUT"; |
| default: |
| return "UNKNOWN(" + code + ")"; |
| } |
| } |
| |
| private void logd(@NonNull String msg) { |
| Log.d(LOG_TAG, msg); |
| } |
| |
| private void logd(@NonNull String msg, Throwable tr) { |
| Log.d(LOG_TAG, msg, tr); |
| } |
| |
| private void logdWithLocalLog(@NonNull String msg) { |
| Log.d(LOG_TAG, msg); |
| mCarrierConfigLoadingLog.log(msg); |
| } |
| |
| private void loge(@NonNull String msg) { |
| Log.e(LOG_TAG, msg); |
| mCarrierConfigLoadingLog.log(msg); |
| } |
| } |
