Extract cached package info from ApexManager (dc9cecee) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/pm/ApexManager.java

+103 −406

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services/core/java/com/android/server/pm/ApexPackageInfo.java

0 → 100644

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		/*
		* 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.pm;

		import static com.android.server.pm.ApexManager.MATCH_ACTIVE_PACKAGE;
		import static com.android.server.pm.ApexManager.MATCH_FACTORY_PACKAGE;

		import android.annotation.NonNull;
		import android.annotation.Nullable;
		import android.apex.ApexInfo;
		import android.content.pm.ApplicationInfo;
		import android.content.pm.PackageInfo;
		import android.content.pm.PackageManager;
		import android.util.ArrayMap;
		import android.util.PrintWriterPrinter;
		import android.util.Slog;

		import com.android.internal.annotations.GuardedBy;
		import com.android.internal.util.IndentingPrintWriter;
		import com.android.internal.util.Preconditions;
		import com.android.server.pm.parsing.PackageParser2;
		import com.android.server.pm.pkg.parsing.PackageInfoWithoutStateUtils;
		import com.android.server.pm.pkg.parsing.ParsingPackageUtils;

		import java.io.File;
		import java.io.PrintWriter;
		import java.util.ArrayList;
		import java.util.Collections;
		import java.util.HashSet;
		import java.util.List;
		import java.util.concurrent.ExecutorService;

		/**
		* A temporary holder to store PackageInfo for scanned apex packages. We will unify the scan/install
		* flows of APK and APEX and PMS will be the only source of truth for all package information
		* including both APK and APEX. This class will no longer be needed when the migration is done.
		*/
		class ApexPackageInfo {
		private static final String TAG = "ApexManager";
		private static final String VNDK_APEX_MODULE_NAME_PREFIX = "com.android.vndk.";

		private final Object mLock = new Object();

		@GuardedBy("mLock")
		private List<PackageInfo> mAllPackagesCache;

		/**
		* Whether an APEX package is active or not.
		*
		* @param packageInfo the package to check
		* @return {@code true} if this package is active, {@code false} otherwise.
		*/
		private static boolean isActive(PackageInfo packageInfo) {
		return packageInfo.isActiveApex;
		}

		/**
		* Called by package manager service to scan apex package files when device boots up.
		*
		* @param allPackages All apex packages to scan.
		* @param packageParser The package parser to support apex package parsing and caching parsed
		* results.
		* @param executorService An executor to support parallel package parsing.
		*/
		List<ApexManager.ScanResult> scanApexPackages(ApexInfo[] allPackages,
		@NonNull PackageParser2 packageParser, @NonNull ExecutorService executorService) {
		synchronized (mLock) {
		return scanApexPackagesInternalLocked(allPackages, packageParser, executorService);
		}
		}

		/**
		* Retrieves information about an APEX package.
		*
		* @param packageName the package name to look for. Note that this is the package name reported
		* in the APK container manifest (i.e. AndroidManifest.xml), which might
		* differ from the one reported in the APEX manifest (i.e.
		* apex_manifest.json).
		* @param flags the type of package to return. This may match to active packages
		* and factory (pre-installed) packages.
		* @return a PackageInfo object with the information about the package, or null if the package
		* is not found.
		*/
		@Nullable
		PackageInfo getPackageInfo(String packageName, @ApexManager.PackageInfoFlags int flags) {
		synchronized (mLock) {
		Preconditions.checkState(mAllPackagesCache != null,
		"APEX packages have not been scanned");
		boolean matchActive = (flags & MATCH_ACTIVE_PACKAGE) != 0;
		boolean matchFactory = (flags & MATCH_FACTORY_PACKAGE) != 0;
		for (int i = 0, size = mAllPackagesCache.size(); i < size; i++) {
		final PackageInfo packageInfo = mAllPackagesCache.get(i);
		if (!packageInfo.packageName.equals(packageName)) {
		continue;
		}
		if ((matchActive && isActive(packageInfo))
		\|\| (matchFactory && isFactory(packageInfo))) {
		return packageInfo;
		}
		}
		return null;
		}
		}

		/**
		* Retrieves information about all active APEX packages.
		*
		* @return a List of PackageInfo object, each one containing information about a different
		* active package.
		*/
		List<PackageInfo> getActivePackages() {
		synchronized (mLock) {
		Preconditions.checkState(mAllPackagesCache != null,
		"APEX packages have not been scanned");
		final List<PackageInfo> activePackages = new ArrayList<>();
		for (int i = 0; i < mAllPackagesCache.size(); i++) {
		final PackageInfo packageInfo = mAllPackagesCache.get(i);
		if (isActive(packageInfo)) {
		activePackages.add(packageInfo);
		}
		}
		return activePackages;
		}
		}

		/**
		* Retrieves information about all active pre-installed APEX packages.
		*
		* @return a List of PackageInfo object, each one containing information about a different
		* active pre-installed package.
		*/
		List<PackageInfo> getFactoryPackages() {
		synchronized (mLock) {
		Preconditions.checkState(mAllPackagesCache != null,
		"APEX packages have not been scanned");
		final List<PackageInfo> factoryPackages = new ArrayList<>();
		for (int i = 0; i < mAllPackagesCache.size(); i++) {
		final PackageInfo packageInfo = mAllPackagesCache.get(i);
		if (isFactory(packageInfo)) {
		factoryPackages.add(packageInfo);
		}
		}
		return factoryPackages;
		}
		}

		/**
		* Retrieves information about all inactive APEX packages.
		*
		* @return a List of PackageInfo object, each one containing information about a different
		* inactive package.
		*/
		List<PackageInfo> getInactivePackages() {
		synchronized (mLock) {
		Preconditions.checkState(mAllPackagesCache != null,
		"APEX packages have not been scanned");
		final List<PackageInfo> inactivePackages = new ArrayList<>();
		for (int i = 0; i < mAllPackagesCache.size(); i++) {
		final PackageInfo packageInfo = mAllPackagesCache.get(i);
		if (!isActive(packageInfo)) {
		inactivePackages.add(packageInfo);
		}
		}
		return inactivePackages;
		}
		}

		/**
		* Checks if {@code packageName} is an apex package.
		*
		* @param packageName package to check.
		* @return {@code true} if {@code packageName} is an apex package.
		*/
		boolean isApexPackage(String packageName) {
		synchronized (mLock) {
		Preconditions.checkState(mAllPackagesCache != null,
		"APEX packages have not been scanned");
		for (int i = 0, size = mAllPackagesCache.size(); i < size; i++) {
		final PackageInfo packageInfo = mAllPackagesCache.get(i);
		if (packageInfo.packageName.equals(packageName)) {
		return true;
		}
		}
		}
		return false;
		}

		/**
		* Called by ApexManager to update cached PackageInfo when installing rebootless APEX.
		*/
		void notifyPackageInstalled(PackageInfo oldApexPkg, PackageInfo newApexPkg) {
		synchronized (mLock) {
		for (int i = 0, size = mAllPackagesCache.size(); i < size; i++) {
		if (mAllPackagesCache.get(i).equals(oldApexPkg)) {
		if (isFactory(oldApexPkg)) {
		oldApexPkg.isActiveApex = false;
		mAllPackagesCache.add(newApexPkg);
		} else {
		mAllPackagesCache.set(i, newApexPkg);
		}
		break;
		}
		}
		}
		}

		/**
		* Whether the APEX package is pre-installed or not.
		*
		* @param packageInfo the package to check
		* @return {@code true} if this package is pre-installed, {@code false} otherwise.
		*/
		private static boolean isFactory(@NonNull PackageInfo packageInfo) {
		return (packageInfo.applicationInfo.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) == 0;
		}

		/**
		* Dumps various state information to the provided {@link PrintWriter} object.
		*
		* @param pw the {@link PrintWriter} object to send information to.
		* @param packageName a {@link String} containing a package name, or {@code null}. If set, only
		* information about that specific package will be dumped.
		*/
		void dump(PrintWriter pw, @Nullable String packageName) {
		final IndentingPrintWriter ipw = new IndentingPrintWriter(pw, " ", 120);
		synchronized (mLock) {
		if (mAllPackagesCache == null) {
		ipw.println("APEX packages have not been scanned");
		return;
		}
		}
		ipw.println("Active APEX packages:");
		dumpFromPackagesCache(getActivePackages(), packageName, ipw);
		ipw.println("Inactive APEX packages:");
		dumpFromPackagesCache(getInactivePackages(), packageName, ipw);
		ipw.println("Factory APEX packages:");
		dumpFromPackagesCache(getFactoryPackages(), packageName, ipw);
		}

		@GuardedBy("mLock")
		private void notifyScanResultLocked(List<ApexManager.ScanResult> scanResults) {
		mAllPackagesCache = new ArrayList<>();
		final int flags = PackageManager.GET_META_DATA
		\| PackageManager.GET_SIGNING_CERTIFICATES
		\| PackageManager.GET_SIGNATURES;

		HashSet<String> activePackagesSet = new HashSet<>();
		HashSet<String> factoryPackagesSet = new HashSet<>();
		for (ApexManager.ScanResult result : scanResults) {
		ApexInfo ai = result.apexInfo;

		final PackageInfo packageInfo = PackageInfoWithoutStateUtils.generate(
		result.parsedPackage, ai, flags);
		if (packageInfo == null) {
		throw new IllegalStateException("Unable to generate package info: "
		+ ai.modulePath);
		}
		if (!packageInfo.packageName.equals(result.packageName)) {
		throw new IllegalStateException("Unmatched package name: "
		+ result.packageName + " != " + packageInfo.packageName
		+ ", path=" + ai.modulePath);
		}
		mAllPackagesCache.add(packageInfo);
		if (ai.isActive) {
		if (!activePackagesSet.add(packageInfo.packageName)) {
		throw new IllegalStateException(
		"Two active packages have the same name: "
		+ packageInfo.packageName);
		}
		}
		if (ai.isFactory) {
		// Don't throw when the duplicating APEX is VNDK APEX
		if (!factoryPackagesSet.add(packageInfo.packageName)
		&& !ai.moduleName.startsWith(VNDK_APEX_MODULE_NAME_PREFIX)) {
		throw new IllegalStateException(
		"Two factory packages have the same name: "
		+ packageInfo.packageName);
		}
		}
		}
		}

		@GuardedBy("mLock")
		private List<ApexManager.ScanResult> scanApexPackagesInternalLocked(final ApexInfo[] allPkgs,
		PackageParser2 packageParser, ExecutorService executorService) {
		if (allPkgs == null \|\| allPkgs.length == 0) {
		notifyScanResultLocked(Collections.EMPTY_LIST);
		return Collections.EMPTY_LIST;
		}

		ArrayMap<File, ApexInfo> parsingApexInfo = new ArrayMap<>();
		ParallelPackageParser parallelPackageParser =
		new ParallelPackageParser(packageParser, executorService);
		for (ApexInfo ai : allPkgs) {
		File apexFile = new File(ai.modulePath);
		parallelPackageParser.submit(apexFile,
		ParsingPackageUtils.PARSE_COLLECT_CERTIFICATES);
		parsingApexInfo.put(apexFile, ai);
		}

		List<ApexManager.ScanResult> results = new ArrayList<>(parsingApexInfo.size());
		// Process results one by one
		for (int i = 0; i < parsingApexInfo.size(); i++) {
		ParallelPackageParser.ParseResult parseResult = parallelPackageParser.take();
		Throwable throwable = parseResult.throwable;
		ApexInfo ai = parsingApexInfo.get(parseResult.scanFile);

		if (throwable == null) {
		// Calling hideAsFinal to assign derived fields for the app info flags.
		parseResult.parsedPackage.hideAsFinal();
		results.add(new ApexManager.ScanResult(
		ai, parseResult.parsedPackage, parseResult.parsedPackage.getPackageName()));
		} else if (throwable instanceof PackageManagerException) {
		final PackageManagerException e = (PackageManagerException) throwable;
		// Skip parsing non-coreApp apex file if system is in minimal boot state.
		if (e.error == PackageManager.INSTALL_PARSE_FAILED_ONLY_COREAPP_ALLOWED) {
		Slog.w(TAG, "Scan apex failed, not a coreApp:" + ai.modulePath);
		continue;
		}
		throw new IllegalStateException("Unable to parse: " + ai.modulePath, throwable);
		} else {
		throw new IllegalStateException("Unexpected exception occurred while parsing "
		+ ai.modulePath, throwable);
		}
		}

		notifyScanResultLocked(results);
		return results;
		}

		/**
		* Dump information about the packages contained in a particular cache
		* @param packagesCache the cache to print information about.
		* @param packageName a {@link String} containing a package name, or {@code null}. If set,
		* only information about that specific package will be dumped.
		* @param ipw the {@link IndentingPrintWriter} object to send information to.
		*/
		private static void dumpFromPackagesCache(List<PackageInfo> packagesCache,
		@Nullable String packageName, IndentingPrintWriter ipw) {
		ipw.println();
		ipw.increaseIndent();
		for (int i = 0, size = packagesCache.size(); i < size; i++) {
		final PackageInfo pi = packagesCache.get(i);
		if (packageName != null && !packageName.equals(pi.packageName)) {
		continue;
		}
		ipw.println(pi.packageName);
		ipw.increaseIndent();
		ipw.println("Version: " + pi.versionCode);
		ipw.println("Path: " + pi.applicationInfo.sourceDir);
		ipw.println("IsActive: " + isActive(pi));
		ipw.println("IsFactory: " + isFactory(pi));
		ipw.println("ApplicationInfo: ");
		ipw.increaseIndent();
		pi.applicationInfo.dump(new PrintWriterPrinter(ipw), "");
		ipw.decreaseIndent();
		ipw.decreaseIndent();
		}
		ipw.decreaseIndent();
		ipw.println();
		}
		}

services/core/java/com/android/server/pm/ComputerEngine.java

+8 −6

Original line number	Diff line number	Diff line
		@@ -397,6 +397,7 @@ public class ComputerEngine implements Computer {
		private final UserManagerService mUserManager;
		private final PermissionManagerServiceInternal mPermissionManager;
		private final ApexManager mApexManager;
		private final ApexPackageInfo mApexPackageInfo;
		private final PackageManagerServiceInjector mInjector;
		private final ComponentResolverApi mComponentResolver;
		private final InstantAppResolverConnection mInstantAppResolverConnection;
		@@ -450,6 +451,7 @@ public class ComputerEngine implements Computer {
		mContext = args.service.mContext;
		mInjector = args.service.mInjector;
		mApexManager = args.service.mApexManager;
		mApexPackageInfo = args.service.mApexPackageInfo;
		mInstantAppResolverConnection = args.service.mInstantAppResolverConnection;
		mDefaultAppProvider = args.service.getDefaultAppProvider();
		mDomainVerificationManager = args.service.mDomainVerificationManager;
		@@ -999,7 +1001,7 @@ public class ComputerEngine implements Computer {
		if ((flags & PackageManager.MATCH_SYSTEM_ONLY) != 0) {
		apexFlags = ApexManager.MATCH_FACTORY_PACKAGE;
		}
		final PackageInfo pi = mApexManager.getPackageInfo(packageName, apexFlags);
		final PackageInfo pi = mApexPackageInfo.getPackageInfo(packageName, apexFlags);
		if (pi == null) {
		return null;
		}
		@@ -1696,7 +1698,7 @@ public class ComputerEngine implements Computer {
		if (matchFactoryOnly) {
		// Instant app filtering for APEX modules is ignored
		if ((flags & MATCH_APEX) != 0) {
		return mApexManager.getPackageInfo(packageName,
		return mApexPackageInfo.getPackageInfo(packageName,
		ApexManager.MATCH_FACTORY_PACKAGE);
		}
		final PackageStateInternal ps = mSettings.getDisabledSystemPkg(packageName);
		@@ -1741,7 +1743,7 @@ public class ComputerEngine implements Computer {
		return generatePackageInfo(ps, flags, userId);
		}
		if ((flags & MATCH_APEX) != 0) {
		return mApexManager.getPackageInfo(packageName, ApexManager.MATCH_ACTIVE_PACKAGE);
		return mApexPackageInfo.getPackageInfo(packageName, ApexManager.MATCH_ACTIVE_PACKAGE);
		}
		return null;
		}
		@@ -1837,9 +1839,9 @@ public class ComputerEngine implements Computer {
		}
		if (listApex) {
		if (listFactory) {
		list.addAll(mApexManager.getFactoryPackages());
		list.addAll(mApexPackageInfo.getFactoryPackages());
		} else {
		list.addAll(mApexManager.getActivePackages());
		list.addAll(mApexPackageInfo.getActivePackages());
		}
		}
		return new ParceledListSlice<>(list);
		@@ -5062,7 +5064,7 @@ public class ComputerEngine implements Computer {
		final PackageStateInternal ps = mSettings.getPackage(packageName);

		// Installer info for Apex is not stored in PackageManager
		if (ps == null && mApexManager.isApexPackage(packageName)) {
		if (ps == null && mApexPackageInfo.isApexPackage(packageName)) {
		return InstallSource.EMPTY;
		}

services/core/java/com/android/server/pm/DumpHelper.java

+6 −2

Original line number	Diff line number	Diff line
		@@ -52,6 +52,7 @@ import java.io.PrintWriter;
		final class DumpHelper {
		private final PermissionManagerServiceInternal mPermissionManager;
		private final ApexManager mApexManager;
		private final ApexPackageInfo mApexPackageInfo;
		private final StorageEventHelper mStorageEventHelper;
		private final DomainVerificationManagerInternal mDomainVerificationManager;
		private final PackageInstallerService mInstallerService;
		@@ -64,6 +65,7 @@ final class DumpHelper {

		DumpHelper(
		PermissionManagerServiceInternal permissionManager, ApexManager apexManager,
		ApexPackageInfo apexPackageInfo,
		StorageEventHelper storageEventHelper,
		DomainVerificationManagerInternal domainVerificationManager,
		PackageInstallerService installerService, String requiredVerifierPackage,
		@@ -74,6 +76,7 @@ final class DumpHelper {
		PerUidReadTimeouts[] perUidReadTimeouts) {
		mPermissionManager = permissionManager;
		mApexManager = apexManager;
		mApexPackageInfo = apexPackageInfo;
		mStorageEventHelper = storageEventHelper;
		mDomainVerificationManager = domainVerificationManager;
		mInstallerService = installerService;
		@@ -271,7 +274,7 @@ final class DumpHelper {
		// Return if the package doesn't exist.
		if (packageName != null
		&& snapshot.getPackageStateInternal(packageName) == null
		&& !mApexManager.isApexPackage(packageName)) {
		&& !mApexPackageInfo.isApexPackage(packageName)) {
		pw.println("Unable to find package: " + packageName);
		return;
		}
		@@ -555,8 +558,9 @@ final class DumpHelper {

		if (!checkin
		&& dumpState.isDumping(DumpState.DUMP_APEX)
		&& (packageName == null \|\| mApexManager.isApexPackage(packageName))) {
		&& (packageName == null \|\| mApexPackageInfo.isApexPackage(packageName))) {
		mApexManager.dump(pw, packageName);
		mApexPackageInfo.dump(pw, packageName);
		}

		if (!checkin

services/core/java/com/android/server/pm/InitAppsHelper.java

+17 −2

Original line number	Diff line number	Diff line
		@@ -72,6 +72,7 @@ final class InitAppsHelper {
		private final int mSystemScanFlags;
		private final InstallPackageHelper mInstallPackageHelper;
		private final ApexManager mApexManager;
		private final ApexPackageInfo mApexPackageInfo;
		private final ExecutorService mExecutorService;
		/* Tracks how long system scan took */
		private long mSystemScanTime;
		@@ -96,11 +97,13 @@ final class InitAppsHelper {
		private final List<String> mStubSystemApps = new ArrayList<>();

		// TODO(b/198166813): remove PMS dependency
		InitAppsHelper(PackageManagerService pm, ApexManager apexManager,
		InitAppsHelper(PackageManagerService pm,
		ApexManager apexManager, ApexPackageInfo apexPackageInfo,
		InstallPackageHelper installPackageHelper,
		List<ScanPartition> systemPartitions) {
		mPm = pm;
		mApexManager = apexManager;
		mApexPackageInfo = apexPackageInfo;
		mInstallPackageHelper = installPackageHelper;
		mSystemPartitions = systemPartitions;
		mDirsToScanAsSystem = getSystemScanPartitions();
		@@ -179,6 +182,17 @@ final class InitAppsHelper {
		return null;
		}

		@GuardedBy({"mPm.mInstallLock", "mPm.mLock"})
		private List<ApexManager.ScanResult> scanApexPackagesTraced(PackageParser2 packageParser) {
		Trace.traceBegin(TRACE_TAG_PACKAGE_MANAGER, "scanApexPackages");
		try {
		return mApexPackageInfo.scanApexPackages(
		mApexManager.getAllApexInfos(), packageParser, mExecutorService);
		} finally {
		Trace.traceEnd(TRACE_TAG_PACKAGE_MANAGER);
		}
		}

		/**
		* Install apps from system dirs.
		*/
		@@ -188,7 +202,8 @@ final class InitAppsHelper {
		int[] userIds, long startTime) {
		// Prepare apex package info before scanning APKs, this information is needed when
		// scanning apk in apex.
		mApexManager.scanApexPackagesTraced(packageParser, mExecutorService);
		final List<ApexManager.ScanResult> apexScanResults = scanApexPackagesTraced(packageParser);
		mApexManager.notifyScanResult(apexScanResults);

		scanSystemDirs(packageParser, mExecutorService);
		// Parse overlay configuration files to set default enable state, mutability, and