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Commit e2335a65 authored by Android Build Coastguard Worker's avatar Android Build Coastguard Worker
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Merge cherrypicks of ['googleplex-android-review.googlesource.com/36447329']...

Merge cherrypicks of ['googleplex-android-review.googlesource.com/36447329'] into security-aosp-udc-release.

Change-Id: I6949d056310689a91ae0651a3235975b19db169e
parents e64667ef 58a95019
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+2 −6
Original line number Diff line number Diff line
@@ -239,9 +239,7 @@ public class BackgroundActivityStartController {

        // don't abort if the callingUid has a visible window or is a persistent system process
        final int callingUidProcState = mService.mActiveUids.getUidState(callingUid);
        final boolean callingUidHasAnyVisibleWindow =
                mService.mVisibleActivityProcessTracker.hasVisibleNotPinnedActivity(callingUid)
                        || mService.mActiveUids.hasNonAppVisibleWindow(callingUid);
        final boolean callingUidHasAnyVisibleWindow = mService.hasActiveVisibleWindow(callingUid);
        final boolean isCallingUidPersistentSystemProcess =
                callingUidProcState <= ActivityManager.PROCESS_STATE_PERSISTENT_UI;

@@ -269,9 +267,7 @@ public class BackgroundActivityStartController {
        final boolean realCallingUidHasAnyVisibleWindow =
                (callingUid == realCallingUid)
                        ? callingUidHasAnyVisibleWindow
                        : (mService.mVisibleActivityProcessTracker.hasVisibleNotPinnedActivity(
                                realCallingUid) || mService.mActiveUids.hasNonAppVisibleWindow(
                                realCallingUid));
                        : mService.hasActiveVisibleWindow(realCallingUid);
        final int realCallingAppId = UserHandle.getAppId(realCallingUid);
        final boolean isRealCallingUidPersistentSystemProcess =
                (callingUid == realCallingUid)
+5 −7
Original line number Diff line number Diff line
@@ -22,7 +22,7 @@ import static com.android.server.wm.ActivityTaskManagerDebugConfig.TAG_ATM;
import static com.android.server.wm.ActivityTaskManagerDebugConfig.TAG_WITH_CLASS_NAME;
import static com.android.server.wm.ActivityTaskManagerService.ACTIVITY_BG_START_GRACE_PERIOD_MS;
import static com.android.server.wm.ActivityTaskManagerService.APP_SWITCH_ALLOW;
import static com.android.server.wm.ActivityTaskManagerService.APP_SWITCH_DISALLOW;
import static com.android.server.wm.ActivityTaskManagerService.APP_SWITCH_FG_ONLY;
import static com.android.server.wm.BackgroundActivityStartController.BAL_ALLOW_FOREGROUND;
import static com.android.server.wm.BackgroundActivityStartController.BAL_ALLOW_GRACE_PERIOD;
import static com.android.server.wm.BackgroundActivityStartController.BAL_ALLOW_PERMISSION;
@@ -99,8 +99,7 @@ class BackgroundLaunchProcessController {
    @BackgroundActivityStartController.BalCode
    int areBackgroundActivityStartsAllowed(int pid, int uid, String packageName,
            int appSwitchState, boolean isCheckingForFgsStart,
            boolean hasActivityInVisibleTask, boolean inPinnedWindow,
            boolean hasBackgroundActivityStartPrivileges,
            boolean hasActivityInVisibleTask, boolean hasBackgroundActivityStartPrivileges,
            long lastStopAppSwitchesTime, long lastActivityLaunchTime,
            long lastActivityFinishTime) {
        // Allow if the proc is instrumenting with background activity starts privs.
@@ -122,10 +121,9 @@ class BackgroundLaunchProcessController {
                    BAL_ALLOW_VISIBLE_WINDOW, /*background*/ false, uid, uid, /*intent*/ null,
                    pid, "Activity start allowed: process bound by foreground uid");
        }
        // Allow if the caller has an activity in any foreground task, unless it's a pinned window
        // and not a foreground service start.
        if ((isCheckingForFgsStart || !inPinnedWindow)
                && hasActivityInVisibleTask && appSwitchState != APP_SWITCH_DISALLOW) {
        // Allow if the caller has an activity in any foreground task.
        if (hasActivityInVisibleTask
                && (appSwitchState == APP_SWITCH_ALLOW || appSwitchState == APP_SWITCH_FG_ONLY)) {
            return BackgroundActivityStartController.logStartAllowedAndReturnCode(
                    BAL_ALLOW_FOREGROUND, /*background*/ false, uid, uid, /*intent*/ null,
                    pid, "Activity start allowed: process has activity in foreground task");
+2 −11
Original line number Diff line number Diff line
@@ -30,7 +30,6 @@ import java.util.function.Predicate;
 * host process with foreground (resumed) activity.
 */
class VisibleActivityProcessTracker {
    private static final Predicate<WindowProcessController> ALWAYS_TRUE = wpc -> true;
    @GuardedBy("mProcMap")
    private final ArrayMap<WindowProcessController, CpuTimeRecord> mProcMap = new ArrayMap<>();
    final Executor mBgExecutor = BackgroundThread.getExecutor();
@@ -81,22 +80,14 @@ class VisibleActivityProcessTracker {
     * {@link ActivityRecord#mVisibleRequested} or {@link ActivityRecord#isVisible()} is true.
     */
    boolean hasVisibleActivity(int uid) {
        return match(uid, ALWAYS_TRUE);
    }

    /**
     * Returns {@code true} if the uid has a process that contains an activity with
     * {@link ActivityRecord#mVisibleRequested} or {@link ActivityRecord#isVisible()} is true.
     */
    boolean hasVisibleNotPinnedActivity(int uid) {
        return match(uid, wpc -> !wpc.inPinnedWindowingMode());
        return match(uid, null /* predicate */);
    }

    private boolean match(int uid, Predicate<WindowProcessController> predicate) {
        synchronized (mProcMap) {
            for (int i = mProcMap.size() - 1; i >= 0; i--) {
                final WindowProcessController wpc = mProcMap.keyAt(i);
                if (wpc.mUid == uid && predicate.test(wpc)) {
                if (wpc.mUid == uid && (predicate == null || predicate.test(wpc))) {
                    return true;
                }
            }
+0 −1
Original line number Diff line number Diff line
@@ -624,7 +624,6 @@ public class WindowProcessController extends ConfigurationContainer<Configuratio
            boolean isCheckingForFgsStart) {
        return mBgLaunchController.areBackgroundActivityStartsAllowed(mPid, mUid, mInfo.packageName,
                appSwitchState, isCheckingForFgsStart, hasActivityInVisibleTask(),
                inPinnedWindowingMode(),
                mInstrumentingWithBackgroundActivityStartPrivileges,
                mAtm.getLastStopAppSwitchesTime(),
                mLastActivityLaunchTime, mLastActivityFinishTime);
+0 −95
Original line number Diff line number Diff line
/*
 * Copyright (C) 2022 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.server.wm;

import static com.google.common.truth.Truth.assertThat;

import static org.mockito.Mockito.mock;

import android.app.IApplicationThread;
import android.app.WindowConfiguration;
import android.content.pm.ApplicationInfo;
import android.platform.test.annotations.Presubmit;

import androidx.test.filters.SmallTest;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;


/**
 * Tests for the {@link com.android.server.wm.VisibleActivityProcessTracker} class.
 *
 * Build/Install/Run:
 * atest WmTests:VisibleActivityProcessTrackerTests
 */
@SmallTest
@Presubmit
@RunWith(WindowTestRunner.class)
public class VisibleActivityProcessTrackerTests extends WindowTestsBase {

    private VisibleActivityProcessTracker mTracker;

    @Before
    public void setup() {
        mTracker = mAtm.mVisibleActivityProcessTracker;
    }

    @Test
    public void testVisibleActivity() {
        WindowProcessController wpc = createWindowProcessController();
        assertThat(mTracker.hasVisibleActivity(wpc.mUid)).isFalse();
        mTracker.onAnyActivityVisible(wpc);
        assertThat(mTracker.hasVisibleActivity(wpc.mUid)).isTrue();
        mTracker.onAllActivitiesInvisible(wpc);
        assertThat(mTracker.hasVisibleActivity(wpc.mUid)).isFalse();
    }

    @Test
    public void testVisibleNotPinnedActivity() {
        WindowProcessController wpc = createWindowProcessController();
        assertThat(mTracker.hasVisibleNotPinnedActivity(wpc.mUid)).isFalse();
        mTracker.onAnyActivityVisible(wpc);
        assertThat(mTracker.hasVisibleNotPinnedActivity(wpc.mUid)).isTrue();
        mTracker.onAllActivitiesInvisible(wpc);
        assertThat(mTracker.hasVisibleNotPinnedActivity(wpc.mUid)).isFalse();
    }

    @Test
    public void testVisiblePinnedActivity() {
        WindowProcessController wpc = createWindowProcessController();
        wpc.getConfiguration().windowConfiguration.setWindowingMode(
                WindowConfiguration.WINDOWING_MODE_PINNED);
        assertThat(mTracker.hasVisibleNotPinnedActivity(wpc.mUid)).isFalse();
        mTracker.onAnyActivityVisible(wpc);
        assertThat(mTracker.hasVisibleActivity(wpc.mUid)).isTrue();
        assertThat(mTracker.hasVisibleNotPinnedActivity(wpc.mUid)).isFalse();
        mTracker.onAllActivitiesInvisible(wpc);
        assertThat(mTracker.hasVisibleNotPinnedActivity(wpc.mUid)).isFalse();
    }

    WindowProcessController createWindowProcessController() {
        WindowProcessListener mMockListener = mock(WindowProcessListener.class);
        ApplicationInfo info = mock(ApplicationInfo.class);
        info.packageName = "test.package.name";
        WindowProcessController mWpc = new WindowProcessController(
                mAtm, info, null, 0, -1, null, mMockListener);
        mWpc.setThread(mock(IApplicationThread.class));
        return mWpc;
    }
}