Merge "apk-in-apex-cache 1/n: Fix isCacheUpToDate for apk-in-apex" into tm-dev... (a2c8ed75) · Commits · e / os / android_frameworks_base

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

+46 −6

Original line number	Diff line number	Diff line
		@@ -67,6 +67,7 @@ import java.io.File;
		import java.io.PrintWriter;
		import java.lang.annotation.Retention;
		import java.lang.annotation.RetentionPolicy;
		import java.nio.file.Path;
		import java.util.ArrayList;
		import java.util.Collections;
		import java.util.HashSet;
		@@ -119,16 +120,18 @@ public abstract class ApexManager {
		@Nullable public final String apexModuleName;
		public final File apexDirectory;
		public final File preInstalledApexPath;
		public final File apexFile;

		private ActiveApexInfo(File apexDirectory, File preInstalledApexPath) {
		this(null, apexDirectory, preInstalledApexPath);
		private ActiveApexInfo(File apexDirectory, File preInstalledApexPath, File apexFile) {
		this(null, apexDirectory, preInstalledApexPath, apexFile);
		}

		private ActiveApexInfo(@Nullable String apexModuleName, File apexDirectory,
		File preInstalledApexPath) {
		File preInstalledApexPath, File apexFile) {
		this.apexModuleName = apexModuleName;
		this.apexDirectory = apexDirectory;
		this.preInstalledApexPath = preInstalledApexPath;
		this.apexFile = apexFile;
		}

		private ActiveApexInfo(ApexInfo apexInfo) {
		@@ -136,7 +139,8 @@ public abstract class ApexManager {
		apexInfo.moduleName,
		new File(Environment.getApexDirectory() + File.separator
		+ apexInfo.moduleName),
		new File(apexInfo.preinstalledModulePath));
		new File(apexInfo.preinstalledModulePath),
		new File(apexInfo.modulePath));
		}
		}

		@@ -427,6 +431,15 @@ public abstract class ApexManager {
		*/
		public abstract List<ApexSystemServiceInfo> getApexSystemServices();

		/**
		* Returns an APEX file backing the mount point {@code file} is located on, or {@code null} if
		* {@code file} doesn't belong to a {@code /apex} mount point.
		*
		* <p>Also returns {@code null} if device doesn't support updatable APEX packages.
		*/
		@Nullable
		public abstract File getBackingApexFile(@NonNull File file);

		/**
		* Dumps various state information to the provided {@link PrintWriter} object.
		*
		@@ -451,6 +464,7 @@ public abstract class ApexManager {
		protected static class ApexManagerImpl extends ApexManager {
		private final Object mLock = new Object();

		// TODO(ioffe): this should be either List or ArrayMap.
		@GuardedBy("mLock")
		private Set<ActiveApexInfo> mActiveApexInfosCache;

		@@ -1184,6 +1198,25 @@ public abstract class ApexManager {
		}
		}

		@Override
		public File getBackingApexFile(File file) {
		Path path = file.toPath();
		if (!path.startsWith(Environment.getApexDirectory().toPath())) {
		return null;
		}
		if (path.getNameCount() < 2) {
		return null;
		}
		String moduleName = file.toPath().getName(1).toString();
		final List<ActiveApexInfo> apexes = getActiveApexInfos();
		for (int i = 0; i < apexes.size(); i++) {
		if (apexes.get(i).apexModuleName.equals(moduleName)) {
		return apexes.get(i).apexFile;
		}
		}
		return null;
		}

		/**
		* Dump information about the packages contained in a particular cache
		* @param packagesCache the cache to print information about.
		@@ -1274,7 +1307,8 @@ public abstract class ApexManager {
		* An implementation of {@link ApexManager} that should be used in case device does not support
		* updating APEX packages.
		*/
		private static final class ApexManagerFlattenedApex extends ApexManager {
		@VisibleForTesting
		static final class ApexManagerFlattenedApex extends ApexManager {
		@Override
		public List<ActiveApexInfo> getActiveApexInfos() {
		// There is no apexd running in case of flattened apex
		@@ -1293,7 +1327,8 @@ public abstract class ApexManager {
		// In flattened configuration, init special-cases the art directory
		// and bind-mounts com.android.art.debug to com.android.art.
		&& !file.getName().equals("com.android.art.debug")) {
		result.add(new ActiveApexInfo(file, Environment.getRootDirectory()));
		result.add(
		new ActiveApexInfo(file, Environment.getRootDirectory(), file));
		}
		}
		}
		@@ -1478,6 +1513,11 @@ public abstract class ApexManager {
		return Collections.emptyList();
		}

		@Override
		public File getBackingApexFile(File file) {
		return null;
		}

		@Override
		void dump(PrintWriter pw, String packageName) {
		// No-op

services/core/java/com/android/server/pm/parsing/PackageCacher.java

+13 −0

Original line number	Diff line number	Diff line
		@@ -18,6 +18,7 @@ package com.android.server.pm.parsing;

		import android.annotation.NonNull;
		import android.content.pm.PackageParserCacheHelper;
		import android.os.Environment;
		import android.os.FileUtils;
		import android.os.Parcel;
		import android.system.ErrnoException;
		@@ -27,6 +28,7 @@ import android.system.StructStat;
		import android.util.Slog;

		import com.android.internal.annotations.VisibleForTesting;
		import com.android.server.pm.ApexManager;
		import com.android.server.pm.parsing.pkg.PackageImpl;
		import com.android.server.pm.parsing.pkg.ParsedPackage;

		@@ -118,6 +120,17 @@ public class PackageCacher {
		*/
		private static boolean isCacheUpToDate(File packageFile, File cacheFile) {
		try {
		// In case packageFile is located on one of /apex mount points it's mtime will always be
		// 0. Instead, we can use mtime of the APEX file backing the corresponding mount point.
		if (packageFile.toPath().startsWith(Environment.getApexDirectory().toPath())) {
		File backingApexFile = ApexManager.getInstance().getBackingApexFile(packageFile);
		if (backingApexFile == null) {
		Slog.w(TAG,
		"Failed to find APEX file backing " + packageFile.getAbsolutePath());
		} else {
		packageFile = backingApexFile;
		}
		}
		// NOTE: We don't use the File.lastModified API because it has the very
		// non-ideal failure mode of returning 0 with no excepions thrown.
		// The nio2 Files API is a little better but is considerably more expensive.

services/tests/servicestests/src/com/android/server/pm/ApexManagerTest.java

+43 −0

Original line number	Diff line number	Diff line
		@@ -39,6 +39,7 @@ import android.apex.IApexService;
		import android.content.Context;
		import android.content.pm.ApplicationInfo;
		import android.content.pm.PackageInfo;
		import android.os.Environment;
		import android.os.RemoteException;
		import android.os.ServiceSpecificException;
		import android.platform.test.annotations.Presubmit;
		@@ -503,6 +504,48 @@ public class ApexManagerTest {
		.isEqualTo(TEST_APEX_PKG);
		}

		@Test
		public void testGetBackingApexFiles() throws Exception {
		final ApexInfo apex = createApexInfoForTestPkg(true, true, 37);
		when(mApexService.getActivePackages()).thenReturn(new ApexInfo[]{apex});

		final File backingApexFile = mApexManager.getBackingApexFile(
		new File("/apex/" + TEST_APEX_PKG + "/apk/App/App.apk"));
		assertThat(backingApexFile.getAbsolutePath()).isEqualTo(apex.modulePath);
		}

		@Test
		public void testGetBackingApexFile_fileNotOnApexMountPoint_returnsNull() throws Exception {
		File result = mApexManager.getBackingApexFile(
		new File("/data/local/tmp/whatever/does-not-matter"));
		assertThat(result).isNull();
		}

		@Test
		public void testGetBackingApexFiles_unknownApex_returnsNull() throws Exception {
		final ApexInfo apex = createApexInfoForTestPkg(true, true, 37);
		when(mApexService.getActivePackages()).thenReturn(new ApexInfo[]{apex});

		final File backingApexFile = mApexManager.getBackingApexFile(
		new File("/apex/com.wrong.apex/apk/App"));
		assertThat(backingApexFile).isNull();
		}

		@Test
		public void testGetBackingApexFiles_topLevelApexDir_returnsNull() throws Exception {
		assertThat(mApexManager.getBackingApexFile(Environment.getApexDirectory())).isNull();
		assertThat(mApexManager.getBackingApexFile(new File("/apex/"))).isNull();
		assertThat(mApexManager.getBackingApexFile(new File("/apex//"))).isNull();
		}

		@Test
		public void testGetBackingApexFiles_flattenedApex() throws Exception {
		ApexManager flattenedApexManager = new ApexManager.ApexManagerFlattenedApex();
		final File backingApexFile = flattenedApexManager.getBackingApexFile(
		new File("/apex/com.android.apex.cts.shim/app/CtsShim/CtsShim.apk"));
		assertThat(backingApexFile).isNull();
		}

		private ApexInfo createApexInfoForTestPkg(boolean isActive, boolean isFactory, int version) {
		File apexFile = extractResource(TEST_APEX_PKG, TEST_APEX_FILE_NAME);
		ApexInfo apexInfo = new ApexInfo();