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Exempt carrier priviledged apps in background app restrictions.

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Bug: 200326767
Bug: 203105544
Test: atest FrameworksMockingServicesTests:BackgroundRestrictionTest
Change-Id: I9470a7e9483721e0faf19c95b2e7c6129fd1edc7
This commit is contained in:
Jing Ji
2022-02-01 01:21:52 -08:00
parent f7e29a4006
commit a47c4a9853
3 changed files with 85 additions and 0 deletions
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8
apex/jobscheduler/framework/java/android/os/PowerExemptionManager.java
View File

@@ -364,6 +364,11 @@ public class PowerExemptionManager {
* @hide
*/
public static final int REASON_SYSTEM_MODULE = 320;
/**
* Carrier privileged app.
* @hide
*/
public static final int REASON_CARRIER_PRIVILEGED_APP = 321;
/** @hide The app requests out-out. */
public static final int REASON_OPT_OUT_REQUESTED = 1000;
@@ -440,6 +445,7 @@ public class PowerExemptionManager {
REASON_ROLE_DIALER,
REASON_ROLE_EMERGENCY,
REASON_SYSTEM_MODULE,
REASON_CARRIER_PRIVILEGED_APP,
REASON_OPT_OUT_REQUESTED,
})
@Retention(RetentionPolicy.SOURCE)
@@ -749,6 +755,8 @@ public class PowerExemptionManager {
return "ROLE_EMERGENCY";
case REASON_SYSTEM_MODULE:
return "SYSTEM_MODULE";
case REASON_CARRIER_PRIVILEGED_APP:
return "CARRIER_PRIVILEGED_APP";
case REASON_OPT_OUT_REQUESTED:
return "REASON_OPT_OUT_REQUESTED";
default:

70
services/core/java/com/android/server/am/AppRestrictionController.java
View File

@@ -54,6 +54,7 @@ import static android.content.pm.PackageManager.MATCH_DIRECT_BOOT_AWARE;
import static android.content.pm.PackageManager.MATCH_DIRECT_BOOT_UNAWARE;
import static android.content.pm.PackageManager.MATCH_DISABLED_UNTIL_USED_COMPONENTS;
import static android.os.PowerExemptionManager.REASON_ALLOWLISTED_PACKAGE;
import static android.os.PowerExemptionManager.REASON_CARRIER_PRIVILEGED_APP;
import static android.os.PowerExemptionManager.REASON_COMPANION_DEVICE_MANAGER;
import static android.os.PowerExemptionManager.REASON_DENIED;
import static android.os.PowerExemptionManager.REASON_DEVICE_DEMO_MODE;
@@ -125,6 +126,7 @@ import android.provider.DeviceConfig.OnPropertiesChangedListener;
import android.provider.DeviceConfig.Properties;
import android.provider.Settings;
import android.provider.Settings.Global;
import android.telephony.TelephonyManager;
import android.util.ArraySet;
import android.util.Slog;
import android.util.SparseArray;
@@ -229,6 +231,19 @@ public final class AppRestrictionController {
@GuardedBy("mLock")
private final HashMap<String, Boolean> mSystemModulesCache = new HashMap<>();
/**
* Lock specifically for bookkeeping around the carrier-privileged app set.
* Do not acquire any other locks while holding this one. Methods that
* require this lock to be held are named with a "CPL" suffix.
*/
private final Object mCarrierPrivilegedLock = new Object();
/**
* List of carrier-privileged apps that should be excluded from standby.
*/
@GuardedBy("mCarrierPrivilegedLock")
private List<String> mCarrierPrivilegedApps;
final ActivityManagerService mActivityManagerService;
/**
@@ -1604,6 +1619,8 @@ public final class AppRestrictionController {
return REASON_OP_ACTIVATE_PLATFORM_VPN;
} else if (isSystemModule(pkg)) {
return REASON_SYSTEM_MODULE;
} else if (isCarrierApp(pkg)) {
return REASON_CARRIER_PRIVILEGED_APP;
}
}
}
@@ -1616,6 +1633,37 @@ public final class AppRestrictionController {
return REASON_DENIED;
}
private boolean isCarrierApp(String packageName) {
synchronized (mCarrierPrivilegedLock) {
if (mCarrierPrivilegedApps == null) {
fetchCarrierPrivilegedAppsCPL();
}
if (mCarrierPrivilegedApps != null) {
return mCarrierPrivilegedApps.contains(packageName);
}
return false;
}
}
private void clearCarrierPrivilegedApps() {
if (DEBUG_BG_RESTRICTION_CONTROLLER) {
Slog.i(TAG, "Clearing carrier privileged apps list");
}
synchronized (mCarrierPrivilegedLock) {
mCarrierPrivilegedApps = null; // Need to be refetched.
}
}
@GuardedBy("mCarrierPrivilegedLock")
private void fetchCarrierPrivilegedAppsCPL() {
final TelephonyManager telephonyManager = mInjector.getTelephonyManager();
mCarrierPrivilegedApps =
telephonyManager.getCarrierPrivilegedPackagesForAllActiveSubscriptions();
if (DEBUG_BG_RESTRICTION_CONTROLLER) {
Slog.d(TAG, "apps with carrier privilege " + mCarrierPrivilegedApps);
}
}
private boolean isRoleHeldByUid(@NonNull String roleName, int uid) {
synchronized (mLock) {
final ArrayList<String> roles = mUidRolesMapping.get(uid);
@@ -1791,6 +1839,7 @@ public final class AppRestrictionController {
private AppBatteryExemptionTracker mAppBatteryExemptionTracker;
private AppFGSTracker mAppFGSTracker;
private AppMediaSessionTracker mAppMediaSessionTracker;
private TelephonyManager mTelephonyManager;
Injector(Context context) {
mContext = context;
@@ -1890,6 +1939,13 @@ public final class AppRestrictionController {
return mRoleManager;
}
TelephonyManager getTelephonyManager() {
if (mTelephonyManager == null) {
mTelephonyManager = getContext().getSystemService(TelephonyManager.class);
}
return mTelephonyManager;
}
AppFGSTracker getAppFGSTracker() {
return mAppFGSTracker;
}
@@ -1939,6 +1995,19 @@ public final class AppRestrictionController {
onUidAdded(uid);
}
}
}
// fall through.
case Intent.ACTION_PACKAGE_CHANGED: {
final String pkgName = intent.getData().getSchemeSpecificPart();
final String[] cmpList = intent.getStringArrayExtra(
Intent.EXTRA_CHANGED_COMPONENT_NAME_LIST);
// If this is PACKAGE_ADDED (cmpList == null), or if it's a whole-package
// enable/disable event (cmpList is just the package name itself), drop
// our carrier privileged app & system-app caches and let them refresh
if (cmpList == null
|| (cmpList.length == 1 && pkgName.equals(cmpList[0]))) {
clearCarrierPrivilegedApps();
}
} break;
case Intent.ACTION_PACKAGE_FULLY_REMOVED: {
final int uid = intent.getIntExtra(Intent.EXTRA_UID, -1);
@@ -1986,6 +2055,7 @@ public final class AppRestrictionController {
};
final IntentFilter packageFilter = new IntentFilter();
packageFilter.addAction(Intent.ACTION_PACKAGE_ADDED);
packageFilter.addAction(Intent.ACTION_PACKAGE_CHANGED);
packageFilter.addAction(Intent.ACTION_PACKAGE_FULLY_REMOVED);
packageFilter.addDataScheme("package");
mContext.registerReceiverForAllUsers(broadcastReceiver, packageFilter, null, mBgHandler);

7
services/tests/mockingservicestests/src/com/android/server/am/BackgroundRestrictionTest.java
View File

@@ -101,6 +101,7 @@ import android.os.SystemClock;
import android.os.UidBatteryConsumer;
import android.os.UserHandle;
import android.provider.DeviceConfig;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.util.Pair;
@@ -211,6 +212,7 @@ public final class BackgroundRestrictionTest {
@Mock private PermissionManagerServiceInternal mPermissionManagerServiceInternal;
@Mock private MediaSessionManager mMediaSessionManager;
@Mock private RoleManager mRoleManager;
@Mock private TelephonyManager mTelephonyManager;
private long mCurrentTimeMillis;
@@ -2308,6 +2310,11 @@ public final class BackgroundRestrictionTest {
return mRoleManager;
}
@Override
TelephonyManager getTelephonyManager() {
return mTelephonyManager;
}
@Override
AppFGSTracker getAppFGSTracker() {
return mAppFGSTracker;