Merge "Verify staged APKs pre-reboot." into qt-dev (f1d9180e) · Commits · e / os / android_frameworks_base

core/java/android/content/pm/PackageManager.java

+9 −0

Original line number	Diff line number	Diff line
		@@ -727,6 +727,7 @@ public abstract class PackageManager {
		INSTALL_ENABLE_ROLLBACK,
		INSTALL_ALLOW_DOWNGRADE,
		INSTALL_STAGED,
		INSTALL_DRY_RUN,
		})
		@Retention(RetentionPolicy.SOURCE)
		public @interface InstallFlags {}
		@@ -904,6 +905,14 @@ public abstract class PackageManager {
		*/
		public static final int INSTALL_STAGED = 0x00200000;

		/**
		* Flag parameter for {@link #installPackage} to indicate that package should only be verified
		* but not installed.
		*
		* @hide
		*/
		public static final int INSTALL_DRY_RUN = 0x00800000;

		/** @hide */
		@IntDef(flag = true, prefix = { "DONT_KILL_APP" }, value = {
		DONT_KILL_APP

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

+16 −0

Original line number	Diff line number	Diff line
		@@ -15566,6 +15566,22 @@ public class PackageManagerService extends IPackageManager.Stub
		@Override
		void handleReturnCode() {
		if (mVerificationCompleted && mEnableRollbackCompleted) {
		if ((installFlags & PackageManager.INSTALL_DRY_RUN) != 0) {
		String packageName = "";
		try {
		PackageLite packageInfo =
		new PackageParser().parsePackageLite(origin.file, 0);
		packageName = packageInfo.packageName;
		} catch (PackageParserException e) {
		Slog.e(TAG, "Can't parse package at " + origin.file.getAbsolutePath(), e);
		}
		try {
		observer.onPackageInstalled(packageName, mRet, "Dry run", new Bundle());
		} catch (RemoteException e) {
		Slog.i(TAG, "Observer no longer exists.");
		}
		return;
		}
		if (mRet == PackageManager.INSTALL_SUCCEEDED) {
		mRet = mArgs.copyApk();
		}

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

+55 −27

Original line number	Diff line number	Diff line
		@@ -57,6 +57,7 @@ import java.util.Arrays;
		import java.util.List;
		import java.util.concurrent.LinkedBlockingQueue;
		import java.util.concurrent.TimeUnit;
		import java.util.function.Predicate;
		import java.util.stream.Collectors;

		/**
		@@ -201,10 +202,6 @@ public class StagingManager {
		private void preRebootVerification(@NonNull PackageInstallerSession session) {
		boolean success = true;

		// STOPSHIP: TODO(b/123753157): Verify APKs through Package Verifier.
		// TODO: Decide whether we want to fail fast by detecting signature mismatches for APKs,
		// right away.

		final ApexInfoList apexInfoList = new ApexInfoList();
		// APEX checks. For single-package sessions, check if they contain an APEX. For
		// multi-package sessions, find all the child sessions that contain an APEX.
		@@ -230,6 +227,16 @@ public class StagingManager {
		return;
		}

		if (sessionContainsApk(session)) {
		if (!installApksInSession(session, /* preReboot */ true)) {
		session.setStagedSessionFailed(SessionInfo.STAGED_SESSION_VERIFICATION_FAILED,
		"APK verification failed. Check logcat messages for "
		+ "more information.");
		// TODO(b/118865310): abort the session on apexd.
		return;
		}
		}

		if (apexInfoList.apexInfos != null && apexInfoList.apexInfos.length > 0) {
		// For APEXes, we validate the signature here before we mark the session as ready,
		// so we fail the session early if there is a signature mismatch. For APKs, the
		@@ -275,21 +282,31 @@ public class StagingManager {
		}
		}

		private boolean sessionContainsApex(@NonNull PackageInstallerSession session) {

		private boolean sessionContains(@NonNull PackageInstallerSession session,
		Predicate<PackageInstallerSession> filter) {
		if (!session.isMultiPackage()) {
		return isApexSession(session);
		return filter.test(session);
		}
		synchronized (mStagedSessions) {
		return !(Arrays.stream(session.getChildSessionIds())
		// Retrieve cached sessions matching ids.
		.mapToObj(i -> mStagedSessions.get(i))
		// Filter only the ones containing APEX.
		.filter(childSession -> isApexSession(childSession))
		.filter(childSession -> filter.test(childSession))
		.collect(Collectors.toList())
		.isEmpty());
		}
		}

		private boolean sessionContainsApex(@NonNull PackageInstallerSession session) {
		return sessionContains(session, (s) -> isApexSession(s));
		}

		private boolean sessionContainsApk(@NonNull PackageInstallerSession session) {
		return sessionContains(session, (s) -> !isApexSession(s));
		}

		private void resumeSession(@NonNull PackageInstallerSession session) {
		boolean hasApex = sessionContainsApex(session);
		if (hasApex) {
		@@ -326,7 +343,7 @@ public class StagingManager {
		}
		}
		// The APEX part of the session is activated, proceed with the installation of APKs.
		if (!installApksInSession(session)) {
		if (!installApksInSession(session, /* preReboot */ false)) {
		session.setStagedSessionFailed(SessionInfo.STAGED_SESSION_ACTIVATION_FAILED,
		"Staged installation of APKs failed. Check logcat messages for"
		+ "more information.");
		@@ -343,7 +360,6 @@ public class StagingManager {
		+ "to the previous state of APEXd.");
		mPowerManager.reboot(null);
		}

		return;
		}

		@@ -366,7 +382,7 @@ public class StagingManager {
		}

		private PackageInstallerSession createAndWriteApkSession(
		@NonNull PackageInstallerSession originalSession) {
		@NonNull PackageInstallerSession originalSession, boolean preReboot) {
		if (originalSession.stageDir == null) {
		Slog.wtf(TAG, "Attempting to install a staged APK session with no staging dir");
		return null;
		@@ -379,9 +395,14 @@ public class StagingManager {

		PackageInstaller.SessionParams params = originalSession.params.copy();
		params.isStaged = false;
		params.installFlags \|= PackageManager.INSTALL_DISABLE_VERIFICATION;
		params.installFlags \|= PackageManager.INSTALL_STAGED;
		// TODO(b/129744602): use the userid from the original session.
		if (preReboot) {
		params.installFlags &= ~PackageManager.INSTALL_ENABLE_ROLLBACK;
		params.installFlags \|= PackageManager.INSTALL_DRY_RUN;
		} else {
		params.installFlags \|= PackageManager.INSTALL_DISABLE_VERIFICATION;
		}
		int apkSessionId = mPi.createSession(
		params, originalSession.getInstallerPackageName(),
		0 /* UserHandle.SYSTEM */);
		@@ -408,8 +429,9 @@ public class StagingManager {
		}

		private boolean commitApkSession(@NonNull PackageInstallerSession apkSession,
		int originalSessionId) {
		int originalSessionId, boolean preReboot) {

		if (!preReboot) {
		if ((apkSession.params.installFlags & PackageManager.INSTALL_ENABLE_ROLLBACK) != 0) {
		// If rollback is available for this session, notify the rollback
		// manager of the apk session so it can properly enable rollback.
		@@ -421,6 +443,7 @@ public class StagingManager {
		// Cannot happen, the rollback manager is in the same process.
		}
		}
		}

		final LocalIntentReceiver receiver = new LocalIntentReceiver();
		apkSession.commit(receiver.getIntentSender(), false);
		@@ -435,14 +458,15 @@ public class StagingManager {
		return false;
		}

		private boolean installApksInSession(@NonNull PackageInstallerSession session) {
		private boolean installApksInSession(@NonNull PackageInstallerSession session,
		boolean preReboot) {
		if (!session.isMultiPackage() && !isApexSession(session)) {
		// APK single-packaged staged session. Do a regular install.
		PackageInstallerSession apkSession = createAndWriteApkSession(session);
		PackageInstallerSession apkSession = createAndWriteApkSession(session, preReboot);
		if (apkSession == null) {
		return false;
		}
		return commitApkSession(apkSession, session.sessionId);
		return commitApkSession(apkSession, session.sessionId, preReboot);
		} else if (session.isMultiPackage()) {
		// For multi-package staged sessions containing APKs, we identify which child sessions
		// contain an APK, and with those then create a new multi-package group of sessions,
		@@ -464,6 +488,9 @@ public class StagingManager {
		}
		PackageInstaller.SessionParams params = session.params.copy();
		params.isStaged = false;
		if (preReboot) {
		params.installFlags &= ~PackageManager.INSTALL_ENABLE_ROLLBACK;
		}
		// TODO(b/129744602): use the userid from the original session.
		int apkParentSessionId = mPi.createSession(
		params, session.getInstallerPackageName(),
		@@ -478,7 +505,8 @@ public class StagingManager {
		}

		for (PackageInstallerSession sessionToClone : childSessions) {
		PackageInstallerSession apkChildSession = createAndWriteApkSession(sessionToClone);
		PackageInstallerSession apkChildSession =
		createAndWriteApkSession(sessionToClone, preReboot);
		if (apkChildSession == null) {
		return false;
		}
		@@ -489,7 +517,7 @@ public class StagingManager {
		return false;
		}
		}
		return commitApkSession(apkParentSession, session.sessionId);
		return commitApkSession(apkParentSession, session.sessionId, preReboot);
		}
		// APEX single-package staged session, nothing to do.
		return true;