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Add a device config to support config for bg restriction exemption

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So the exempted packages could be configured via device config update.

Bug: 203105544
Test: Manual - Update the device config and check the dumpsys.
Test: atest FrameworksMockingServicesTests:BackgroundRestrictionTest
Change-Id: I147e899e52f44da0bb98162970879b4ff9345020
This commit is contained in:
Jing Ji
2022-02-09 00:32:57 -08:00
parent 4838c7cac9
commit 40133ebc95
1 changed files with 44 additions and 0 deletions
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44
services/core/java/com/android/server/am/AppRestrictionController.java
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@@ -69,6 +69,7 @@ import static android.os.PowerExemptionManager.REASON_ROLE_EMERGENCY;
import static android.os.PowerExemptionManager.REASON_SYSTEM_ALLOW_LISTED;
import static android.os.PowerExemptionManager.REASON_SYSTEM_MODULE;
import static android.os.PowerExemptionManager.REASON_SYSTEM_UID;
import static android.os.PowerExemptionManager.reasonCodeToString;
import static android.os.Process.SYSTEM_UID;
import static com.android.internal.notification.SystemNotificationChannels.ABUSIVE_BACKGROUND_APPS;
@@ -157,6 +158,7 @@ import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArraySet;
import java.util.function.Consumer;
@@ -329,6 +331,8 @@ public final class AppRestrictionController {
}
}
}
pw.print(" effectiveExemption=");
pw.print(reasonCodeToString(getBackgroundRestrictionExemptionReason(mUid)));
}
String getPackageName() {
@@ -555,6 +559,12 @@ public final class AppRestrictionController {
static final String KEY_BG_PROMPT_FGS_WITH_NOTIFICATION_TO_BG_RESTRICTED =
DEVICE_CONFIG_SUBNAMESPACE_PREFIX + "prompt_fgs_with_noti_to_bg_restricted";
/**
* The list of packages to be exempted from all these background restrictions.
*/
static final String KEY_BG_RESTRICTION_EXEMPTED_PACKAGES =
DEVICE_CONFIG_SUBNAMESPACE_PREFIX + "restriction_exempted_packages";
static final boolean DEFAULT_BG_AUTO_RESTRICTED_BUCKET_ON_BG_RESTRICTION = false;
static final long DEFAULT_BG_ABUSIVE_NOTIFICATION_MINIMAL_INTERVAL_MS = 24 * 60 * 60 * 1000;
@@ -569,6 +579,13 @@ public final class AppRestrictionController {
volatile long mBgNotificationMinIntervalMs;
/**
* @see #KEY_BG_RESTRICTION_EXEMPTED_PACKAGES.
*
*<p> Mutations on them would result in copy-on-write.</p>
*/
volatile Set<String> mBgRestrictionExemptedPackages = Collections.emptySet();
/**
* @see #KEY_BG_PROMPT_FGS_WITH_NOTIFICATION_TO_BG_RESTRICTED.
*/
@@ -596,6 +613,9 @@ public final class AppRestrictionController {
case KEY_BG_PROMPT_FGS_WITH_NOTIFICATION_TO_BG_RESTRICTED:
updateBgPromptFgsWithNotiToBgRestricted();
break;
case KEY_BG_RESTRICTION_EXEMPTED_PACKAGES:
updateBgRestrictionExemptedPackages();
break;
}
AppRestrictionController.this.onPropertiesChanged(name);
}
@@ -628,6 +648,7 @@ public final class AppRestrictionController {
updateBgAutoRestrictedBucketChanged();
updateBgAbusiveNotificationMinimalInterval();
updateBgPromptFgsWithNotiToBgRestricted();
updateBgRestrictionExemptedPackages();
}
private void updateBgAutoRestrictedBucketChanged() {
@@ -655,6 +676,23 @@ public final class AppRestrictionController {
mDefaultBgPromptFgsWithNotiToBgRestricted);
}
private void updateBgRestrictionExemptedPackages() {
final String settings = DeviceConfig.getString(
DeviceConfig.NAMESPACE_ACTIVITY_MANAGER,
KEY_BG_RESTRICTION_EXEMPTED_PACKAGES,
null);
if (settings == null) {
mBgRestrictionExemptedPackages = Collections.emptySet();
return;
}
final String[] settingsList = settings.split(",");
final ArraySet<String> packages = new ArraySet<>();
for (String pkg : settingsList) {
packages.add(pkg);
}
mBgRestrictionExemptedPackages = Collections.unmodifiableSet(packages);
}
void dump(PrintWriter pw, String prefix) {
pw.print(prefix);
pw.println("BACKGROUND RESTRICTION POLICY SETTINGS:");
@@ -672,6 +710,10 @@ public final class AppRestrictionController {
pw.print(KEY_BG_PROMPT_FGS_WITH_NOTIFICATION_TO_BG_RESTRICTED);
pw.print('=');
pw.println(mBgPromptFgsWithNotiToBgRestricted);
pw.print(prefix);
pw.print(KEY_BG_RESTRICTION_EXEMPTED_PACKAGES);
pw.print('=');
pw.println(mBgRestrictionExemptedPackages.toString());
}
}
@@ -1727,6 +1769,8 @@ public final class AppRestrictionController {
return REASON_CARRIER_PRIVILEGED_APP;
} else if (isExemptedFromSysConfig(pkg)) {
return REASON_SYSTEM_ALLOW_LISTED;
} else if (mConstantsObserver.mBgRestrictionExemptedPackages.contains(pkg)) {
return REASON_ALLOWLISTED_PACKAGE;
}
}
}