Moves appID registration outside of scan commit (649a8574) · Commits · e / os / android_frameworks_base

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

+53 −19

Original line number	Diff line number	Diff line
		@@ -5407,7 +5407,7 @@ public class PackageManagerService extends IPackageManager.Stub
		synchronized (mPackages) {
		Signature[] s1;
		Signature[] s2;
		Object obj = mSettings.getUserIdLPr(uid1);
		Object obj = mSettings.getSettingLPr(uid1);
		if (obj != null) {
		if (obj instanceof SharedUserSetting) {
		if (isCallerInstantApp) {
		@@ -5426,7 +5426,7 @@ public class PackageManagerService extends IPackageManager.Stub
		} else {
		return PackageManager.SIGNATURE_UNKNOWN_PACKAGE;
		}
		obj = mSettings.getUserIdLPr(uid2);
		obj = mSettings.getSettingLPr(uid2);
		if (obj != null) {
		if (obj instanceof SharedUserSetting) {
		if (isCallerInstantApp) {
		@@ -5485,7 +5485,7 @@ public class PackageManagerService extends IPackageManager.Stub
		// reader
		synchronized (mPackages) {
		final PackageParser.SigningDetails signingDetails;
		final Object obj = mSettings.getUserIdLPr(uid);
		final Object obj = mSettings.getSettingLPr(uid);
		if (obj != null) {
		if (obj instanceof SharedUserSetting) {
		final boolean isCallerInstantApp = getInstantAppPackageName(callingUid) != null;
		@@ -5598,7 +5598,7 @@ public class PackageManagerService extends IPackageManager.Stub
		uid = UserHandle.getAppId(uid);
		// reader
		synchronized (mPackages) {
		Object obj = mSettings.getUserIdLPr(uid);
		Object obj = mSettings.getSettingLPr(uid);
		if (obj instanceof SharedUserSetting) {
		if (isCallerInstantApp) {
		return null;
		@@ -5634,7 +5634,7 @@ public class PackageManagerService extends IPackageManager.Stub
		return null;
		}
		synchronized (mPackages) {
		Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
		Object obj = mSettings.getSettingLPr(UserHandle.getAppId(uid));
		if (obj instanceof SharedUserSetting) {
		final SharedUserSetting sus = (SharedUserSetting) obj;
		return sus.name + ":" + sus.userId;
		@@ -5662,7 +5662,7 @@ public class PackageManagerService extends IPackageManager.Stub
		synchronized (mPackages) {
		for (int i = uids.length - 1; i >= 0; i--) {
		final int uid = uids[i];
		Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
		Object obj = mSettings.getSettingLPr(UserHandle.getAppId(uid));
		if (obj instanceof SharedUserSetting) {
		final SharedUserSetting sus = (SharedUserSetting) obj;
		names[i] = "shared:" + sus.name;
		@@ -5711,7 +5711,7 @@ public class PackageManagerService extends IPackageManager.Stub
		return 0;
		}
		synchronized (mPackages) {
		Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
		Object obj = mSettings.getSettingLPr(UserHandle.getAppId(uid));
		if (obj instanceof SharedUserSetting) {
		final SharedUserSetting sus = (SharedUserSetting) obj;
		return sus.pkgFlags;
		@@ -5733,7 +5733,7 @@ public class PackageManagerService extends IPackageManager.Stub
		return 0;
		}
		synchronized (mPackages) {
		Object obj = mSettings.getUserIdLPr(UserHandle.getAppId(uid));
		Object obj = mSettings.getSettingLPr(UserHandle.getAppId(uid));
		if (obj instanceof SharedUserSetting) {
		final SharedUserSetting sus = (SharedUserSetting) obj;
		return sus.pkgPrivateFlags;
		@@ -5756,7 +5756,7 @@ public class PackageManagerService extends IPackageManager.Stub
		uid = UserHandle.getAppId(uid);
		// reader
		synchronized (mPackages) {
		Object obj = mSettings.getUserIdLPr(uid);
		Object obj = mSettings.getSettingLPr(uid);
		if (obj instanceof SharedUserSetting) {
		final SharedUserSetting sus = (SharedUserSetting) obj;
		final Iterator<PackageSetting> it = sus.packages.iterator();
		@@ -6396,7 +6396,7 @@ public class PackageManagerService extends IPackageManager.Stub
		callingUid = mIsolatedOwners.get(callingUid);
		}
		final int appId = UserHandle.getAppId(callingUid);
		final Object obj = mSettings.getUserIdLPr(appId);
		final Object obj = mSettings.getSettingLPr(appId);
		if (obj instanceof PackageSetting) {
		final PackageSetting ps = (PackageSetting) obj;
		final boolean isInstantApp = ps.getInstantApp(UserHandle.getUserId(callingUid));
		@@ -8726,7 +8726,13 @@ public class PackageManagerService extends IPackageManager.Stub
		\| SCAN_UPDATE_SIGNATURE, currentTime, user);
		if (scanResult.success) {
		synchronized (mPackages) {
		try {
		prepareScanResultLocked(scanResult);
		commitScanResultLocked(scanResult);
		} catch (PackageManagerException e) {
		unprepareScanResultLocked(scanResult);
		throw e;
		}
		}
		}

		@@ -10125,7 +10131,37 @@ public class PackageManagerService extends IPackageManager.Stub
		}
		}
		for (ScanResult result : results) {
		try {
		prepareScanResultLocked(result);
		commitScanResultLocked(result);
		} catch (PackageManagerException e) {
		unprepareScanResultLocked(result);
		throw e;
		}
		}
		}
		}

		/** Prepares the system to commit a {@link ScanResult} in a way that will not fail. */
		private void prepareScanResultLocked(@NonNull ScanResult result)
		throws PackageManagerException {
		if (!result.existingSettingCopied) {
		// THROWS: when we can't allocate a user id. add call to check if there's
		// enough space to ensure we won't throw; otherwise, don't modify state
		mSettings.registerAppIdLPw(result.pkgSetting);
		}
		}

		/**
		* Reverts any changes to the system that were made by
		* {@link #prepareScanResultLocked(ScanResult)}
		*/
		private void unprepareScanResultLocked(@NonNull ScanResult result) {
		if (!result.existingSettingCopied) {
		// iff we've acquired an app ID for a new package setting, remove it so that it can be
		// acquired by another request.
		if (result.pkgSetting.appId > 0) {
		mSettings.removeAppIdLPw(result.pkgSetting.appId);
		}
		}
		}
		@@ -10164,10 +10200,6 @@ public class PackageManagerService extends IPackageManager.Stub
		if (originalPkgSetting != null) {
		mSettings.addRenamedPackageLPw(pkg.packageName, originalPkgSetting.name);
		}
		// THROWS: when we can't allocate a user id. add call to check if there's
		// enough space to ensure we won't throw; otherwise, don't modify state
		mSettings.addUserToSettingLPw(pkgSetting);

		if (originalPkgSetting != null && (scanFlags & SCAN_CHECK_ONLY) == 0) {
		mTransferedPackages.add(originalPkgSetting.name);
		}
		@@ -13496,7 +13528,7 @@ public class PackageManagerService extends IPackageManager.Stub
		}

		Signature[] callerSignature;
		Object obj = mSettings.getUserIdLPr(callingUid);
		Object obj = mSettings.getSettingLPr(callingUid);
		if (obj != null) {
		if (obj instanceof SharedUserSetting) {
		callerSignature =
		@@ -15414,8 +15446,10 @@ public class PackageManagerService extends IPackageManager.Stub


		try {
		prepareScanResultLocked(scanResult);
		commitScanResultLocked(scanResult);
		} catch (PackageManagerException e) {
		unprepareScanResultLocked(scanResult);
		res.setReturnCode(INSTALL_FAILED_INTERNAL_ERROR);
		res.setError("Package couldn't be installed in " + pkg.codePath, e);
		return false;
		@@ -18477,7 +18511,7 @@ public class PackageManagerService extends IPackageManager.Stub

		@GuardedBy("mPackages")
		private int getUidTargetSdkVersionLockedLPr(int uid) {
		Object obj = mSettings.getUserIdLPr(uid);
		Object obj = mSettings.getSettingLPr(uid);
		if (obj instanceof SharedUserSetting) {
		final SharedUserSetting sus = (SharedUserSetting) obj;
		int vers = Build.VERSION_CODES.CUR_DEVELOPMENT;
		@@ -22588,7 +22622,7 @@ public class PackageManagerService extends IPackageManager.Stub
		private SigningDetails getSigningDetails(int uid) {
		synchronized (mPackages) {
		final int appId = UserHandle.getAppId(uid);
		final Object obj = mSettings.getUserIdLPr(appId);
		final Object obj = mSettings.getSettingLPr(appId);
		if (obj != null) {
		if (obj instanceof SharedUserSetting) {
		return ((SharedUserSetting) obj).signatures.mSigningDetails;

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

+62 −60

Original line number	Diff line number	Diff line
		@@ -381,11 +381,9 @@ public final class Settings {
		final SparseArray<CrossProfileIntentResolver> mCrossProfileIntentResolvers =
		new SparseArray<CrossProfileIntentResolver>();

		final ArrayMap<String, SharedUserSetting> mSharedUsers =
		new ArrayMap<String, SharedUserSetting>();
		private final ArrayList<Object> mUserIds = new ArrayList<Object>();
		private final SparseArray<Object> mOtherUserIds =
		new SparseArray<Object>();
		final ArrayMap<String, SharedUserSetting> mSharedUsers = new ArrayMap<>();
		private final ArrayList<SettingBase> mAppIds = new ArrayList<>();
		private final SparseArray<SettingBase> mOtherAppIds = new SparseArray<>();

		// For reading/writing settings file.
		private final ArrayList<Signature> mPastSignatures =
		@@ -519,7 +517,7 @@ public final class Settings {
		SharedUserSetting s = mSharedUsers.get(name);
		if (s == null && create) {
		s = new SharedUserSetting(name, pkgFlags, pkgPrivateFlags);
		s.userId = newUserIdLPw(s);
		s.userId = acquireAndRegisterNewAppIdLPw(s);
		if (s.userId < 0) {
		// < 0 means we couldn't assign a userid; throw exception
		throw new PackageManagerException(INSTALL_FAILED_INSUFFICIENT_STORAGE,
		@@ -612,7 +610,7 @@ public final class Settings {
		cpuAbiOverrideString, vc, pkgFlags, pkgPrivateFlags, parentPackageName,
		childPackageNames, 0 /userId/, usesStaticLibraries, usesStaticLibraryNames);
		p.appId = uid;
		if (addUserIdLPw(uid, p, name)) {
		if (registerExistingAppIdLPw(uid, p, name)) {
		mPackages.put(name, p);
		return p;
		}
		@@ -635,7 +633,7 @@ public final class Settings {
		}
		s = new SharedUserSetting(name, pkgFlags, pkgPrivateFlags);
		s.userId = uid;
		if (addUserIdLPw(uid, s, name)) {
		if (registerExistingAppIdLPw(uid, s, name)) {
		mSharedUsers.put(name, s);
		return s;
		}
		@@ -885,13 +883,13 @@ public final class Settings {
		* Registers a user ID with the system. Potentially allocates a new user ID.
		* @throws PackageManagerException If a user ID could not be allocated.
		*/
		void addUserToSettingLPw(PackageSetting p) throws PackageManagerException {
		void registerAppIdLPw(PackageSetting p) throws PackageManagerException {
		if (p.appId == 0) {
		// Assign new user ID
		p.appId = newUserIdLPw(p);
		p.appId = acquireAndRegisterNewAppIdLPw(p);
		} else {
		// Add new setting to list of user IDs
		addUserIdLPw(p.appId, p, p.name);
		registerExistingAppIdLPw(p.appId, p, p.name);
		}
		if (p.appId < 0) {
		PackageManagerService.reportSettingsProblem(Log.WARN,
		@@ -972,14 +970,14 @@ public final class Settings {

		// If the we know about this user id, we have to update it as it
		// has to point to the same PackageSetting instance as the package.
		Object userIdPs = getUserIdLPr(p.appId);
		Object userIdPs = getSettingLPr(p.appId);
		if (sharedUser == null) {
		if (userIdPs != null && userIdPs != p) {
		replaceUserIdLPw(p.appId, p);
		replaceAppIdLPw(p.appId, p);
		}
		} else {
		if (userIdPs != null && userIdPs != sharedUser) {
		replaceUserIdLPw(p.appId, sharedUser);
		replaceAppIdLPw(p.appId, sharedUser);
		}
		}

		@@ -1083,11 +1081,11 @@ public final class Settings {
		p.sharedUser.removePackage(p);
		if (p.sharedUser.packages.size() == 0) {
		mSharedUsers.remove(p.sharedUser.name);
		removeUserIdLPw(p.sharedUser.userId);
		removeAppIdLPw(p.sharedUser.userId);
		return p.sharedUser.userId;
		}
		} else {
		removeUserIdLPw(p.appId);
		removeAppIdLPw(p.appId);
		return p.appId;
		}
		}
		@@ -1115,65 +1113,69 @@ public final class Settings {
		mInstallerPackages.remove(packageName);
		}

		private boolean addUserIdLPw(int uid, Object obj, Object name) {
		if (uid > Process.LAST_APPLICATION_UID) {
		/** Returns true if the requested AppID was valid and not already registered. */
		private boolean registerExistingAppIdLPw(int appId, SettingBase obj, Object name) {
		if (appId > Process.LAST_APPLICATION_UID) {
		return false;
		}

		if (uid >= Process.FIRST_APPLICATION_UID) {
		int N = mUserIds.size();
		final int index = uid - Process.FIRST_APPLICATION_UID;
		while (index >= N) {
		mUserIds.add(null);
		N++;
		if (appId >= Process.FIRST_APPLICATION_UID) {
		int size = mAppIds.size();
		final int index = appId - Process.FIRST_APPLICATION_UID;
		// fill the array until our index becomes valid
		while (index >= size) {
		mAppIds.add(null);
		size++;
		}
		if (mUserIds.get(index) != null) {
		if (mAppIds.get(index) != null) {
		PackageManagerService.reportSettingsProblem(Log.ERROR,
		"Adding duplicate user id: " + uid
		"Adding duplicate app id: " + appId
		+ " name=" + name);
		return false;
		}
		mUserIds.set(index, obj);
		mAppIds.set(index, obj);
		} else {
		if (mOtherUserIds.get(uid) != null) {
		if (mOtherAppIds.get(appId) != null) {
		PackageManagerService.reportSettingsProblem(Log.ERROR,
		"Adding duplicate shared id: " + uid
		"Adding duplicate shared id: " + appId
		+ " name=" + name);
		return false;
		}
		mOtherUserIds.put(uid, obj);
		mOtherAppIds.put(appId, obj);
		}
		return true;
		}

		public Object getUserIdLPr(int uid) {
		if (uid >= Process.FIRST_APPLICATION_UID) {
		final int N = mUserIds.size();
		final int index = uid - Process.FIRST_APPLICATION_UID;
		return index < N ? mUserIds.get(index) : null;
		/** Gets the setting associated with the provided App ID */
		public SettingBase getSettingLPr(int appId) {
		if (appId >= Process.FIRST_APPLICATION_UID) {
		final int size = mAppIds.size();
		final int index = appId - Process.FIRST_APPLICATION_UID;
		return index < size ? mAppIds.get(index) : null;
		} else {
		return mOtherUserIds.get(uid);
		return mOtherAppIds.get(appId);
		}
		}

		private void removeUserIdLPw(int uid) {
		if (uid >= Process.FIRST_APPLICATION_UID) {
		final int N = mUserIds.size();
		final int index = uid - Process.FIRST_APPLICATION_UID;
		if (index < N) mUserIds.set(index, null);
		/** Unregisters the provided app ID. */
		void removeAppIdLPw(int appId) {
		if (appId >= Process.FIRST_APPLICATION_UID) {
		final int size = mAppIds.size();
		final int index = appId - Process.FIRST_APPLICATION_UID;
		if (index < size) mAppIds.set(index, null);
		} else {
		mOtherUserIds.remove(uid);
		mOtherAppIds.remove(appId);
		}
		setFirstAvailableUid(uid+1);
		setFirstAvailableUid(appId + 1);
		}

		private void replaceUserIdLPw(int uid, Object obj) {
		if (uid >= Process.FIRST_APPLICATION_UID) {
		final int N = mUserIds.size();
		final int index = uid - Process.FIRST_APPLICATION_UID;
		if (index < N) mUserIds.set(index, obj);
		private void replaceAppIdLPw(int appId, SettingBase obj) {
		if (appId >= Process.FIRST_APPLICATION_UID) {
		final int size = mAppIds.size();
		final int index = appId - Process.FIRST_APPLICATION_UID;
		if (index < size) mAppIds.set(index, obj);
		} else {
		mOtherUserIds.put(uid, obj);
		mOtherAppIds.put(appId, obj);
		}
		}

		@@ -3157,7 +3159,7 @@ public final class Settings {
		for (int i = 0; i < N; i++) {
		final PackageSetting p = mPendingPackages.get(i);
		final int sharedUserId = p.getSharedUserId();
		final Object idObj = getUserIdLPr(sharedUserId);
		final Object idObj = getSettingLPr(sharedUserId);
		if (idObj instanceof SharedUserSetting) {
		final SharedUserSetting sharedUser = (SharedUserSetting) idObj;
		p.sharedUser = sharedUser;
		@@ -3202,7 +3204,7 @@ public final class Settings {
		final Iterator<PackageSetting> disabledIt = mDisabledSysPackages.values().iterator();
		while (disabledIt.hasNext()) {
		final PackageSetting disabledPs = disabledIt.next();
		final Object id = getUserIdLPr(disabledPs.appId);
		final Object id = getSettingLPr(disabledPs.appId);
		if (id != null && id instanceof SharedUserSetting) {
		disabledPs.sharedUser = (SharedUserSetting) id;
		}
		@@ -4206,24 +4208,24 @@ public final class Settings {
		}
		}

		// Returns -1 if we could not find an available UserId to assign
		private int newUserIdLPw(Object obj) {
		/** Returns a new AppID or -1 if we could not find an available AppID to assign */
		private int acquireAndRegisterNewAppIdLPw(SettingBase obj) {
		// Let's be stupidly inefficient for now...
		final int N = mUserIds.size();
		for (int i = mFirstAvailableUid; i < N; i++) {
		if (mUserIds.get(i) == null) {
		mUserIds.set(i, obj);
		final int size = mAppIds.size();
		for (int i = mFirstAvailableUid; i < size; i++) {
		if (mAppIds.get(i) == null) {
		mAppIds.set(i, obj);
		return Process.FIRST_APPLICATION_UID + i;
		}
		}

		// None left?
		if (N > (Process.LAST_APPLICATION_UID-Process.FIRST_APPLICATION_UID)) {
		if (size > (Process.LAST_APPLICATION_UID - Process.FIRST_APPLICATION_UID)) {
		return -1;
		}

		mUserIds.add(obj);
		return Process.FIRST_APPLICATION_UID + N;
		mAppIds.add(obj);
		return Process.FIRST_APPLICATION_UID + size;
		}

		public VerifierDeviceIdentity getVerifierDeviceIdentityLPw() {