Add profile owner transfer functionality. (08841efc) · Commits · e / os / android_frameworks_base

core/java/android/app/admin/DevicePolicyManager.java

+40 −0

Original line number	Diff line number	Diff line
		@@ -8753,4 +8753,44 @@ public class DevicePolicyManager {
		throw re.rethrowFromSystemServer();
		}
		}

		//TODO STOPSHIP Add link to onTransferComplete callback when implemented.
		/**
		* Transfers the current administrator. All policies from the current administrator are
		* migrated to the new administrator. The whole operation is atomic - the transfer is either
		* complete or not done at all.
		*
		* Depending on the current administrator (device owner, profile owner, corporate owned
		* profile owner), you have the following expected behaviour:
		* <ul>
		* <li>A device owner can only be transferred to a new device owner</li>
		* <li>A profile owner can only be transferred to a new profile owner</li>
		* <li>A corporate owned managed profile can have two cases:
		* <ul>
		* <li>If the device owner and profile owner are the same package,
		* both will be transferred.</li>
		* <li>If the device owner and profile owner are different packages,
		* and if this method is called from the profile owner, only the profile owner
		* is transferred. Similarly, if it is called from the device owner, only
		* the device owner is transferred.</li>
		* </ul>
		* </li>
		* </ul>
		*
		* @param admin Which {@link DeviceAdminReceiver} this request is associated with.
		* @param target Which {@link DeviceAdminReceiver} we want the new administrator to be.
		* @param bundle Parameters - This bundle allows the current administrator to pass data to the
		* new administrator. The parameters will be received in the
		* onTransferComplete callback.
		* @hide
		*/
		public void transferOwner(@NonNull ComponentName admin, @NonNull ComponentName target,
		PersistableBundle bundle) {
		throwIfParentInstance("transferOwner");
		try {
		mService.transferOwner(admin, target, bundle);
		} catch (RemoteException re) {
		throw re.rethrowFromSystemServer();
		}
		}
		}

core/java/android/app/admin/IDevicePolicyManager.aidl

+1 −0

Original line number	Diff line number	Diff line
		@@ -378,4 +378,5 @@ interface IDevicePolicyManager {
		boolean isLogoutEnabled();

		List<String> getDisallowedSystemApps(in ComponentName admin, int userId, String provisioningAction);
		void transferOwner(in ComponentName admin, in ComponentName target, in PersistableBundle bundle);
		}

services/devicepolicy/java/com/android/server/devicepolicy/BaseIDevicePolicyManager.java

+3 −0

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@ package com.android.server.devicepolicy;

		import android.app.admin.IDevicePolicyManager;
		import android.content.ComponentName;
		import android.os.PersistableBundle;

		import com.android.internal.R;
		import com.android.server.SystemService;
		@@ -57,4 +58,6 @@ abstract class BaseIDevicePolicyManager extends IDevicePolicyManager.Stub {
		abstract void handleStopUser(int userId);

		public void setSystemSetting(ComponentName who, String setting, String value){}

		public void transferOwner(ComponentName admin, ComponentName target, PersistableBundle bundle) {}
		}

services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java

+109 −20

Original line number	Diff line number	Diff line
		@@ -751,7 +751,7 @@ public class DevicePolicyManagerService extends BaseIDevicePolicyManager {
		private static final String ATTR_NUM_NETWORK_LOGGING_NOTIFICATIONS = "num-notifications";
		private static final String TAG_IS_LOGOUT_ENABLED = "is_logout_enabled";

		final DeviceAdminInfo info;
		DeviceAdminInfo info;


		static final int DEF_PASSWORD_HISTORY_LENGTH = 0;
		@@ -1402,6 +1402,13 @@ public class DevicePolicyManagerService extends BaseIDevicePolicyManager {
		return userRestrictions;
		}

		public void transfer(DeviceAdminInfo deviceAdminInfo) {
		if (hasParentActiveAdmin()) {
		parentAdmin.info = deviceAdminInfo;
		}
		info = deviceAdminInfo;
		}

		void dump(String prefix, PrintWriter pw) {
		pw.print(prefix); pw.print("uid="); pw.println(getUid());
		pw.print(prefix); pw.print("testOnlyAdmin=");
		@@ -2541,7 +2548,7 @@ public class DevicePolicyManagerService extends BaseIDevicePolicyManager {


		public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle,
		boolean throwForMissiongPermission) {
		boolean throwForMissingPermission) {
		if (!mHasFeature) {
		return null;
		}
		@@ -2564,7 +2571,7 @@ public class DevicePolicyManagerService extends BaseIDevicePolicyManager {
		final String message = "DeviceAdminReceiver " + adminName + " must be protected with "
		+ permission.BIND_DEVICE_ADMIN;
		Slog.w(LOG_TAG, message);
		if (throwForMissiongPermission &&
		if (throwForMissingPermission &&
		ai.applicationInfo.targetSdkVersion > Build.VERSION_CODES.M) {
		throw new IllegalArgumentException(message);
		}
		@@ -2889,7 +2896,7 @@ public class DevicePolicyManagerService extends BaseIDevicePolicyManager {
		try {
		DeviceAdminInfo dai = findAdmin(
		ComponentName.unflattenFromString(name), userHandle,
		/* throwForMissionPermission= */ false);
		/* throwForMissingPermission= */ false);
		if (VERBOSE_LOG
		&& (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid)
		!= userHandle)) {
		@@ -3293,19 +3300,9 @@ public class DevicePolicyManagerService extends BaseIDevicePolicyManager {

		DevicePolicyData policy = getUserData(userHandle);
		DeviceAdminInfo info = findAdmin(adminReceiver, userHandle,
		/* throwForMissionPermission= */ true);
		if (info == null) {
		throw new IllegalArgumentException("Bad admin: " + adminReceiver);
		}
		if (!info.getActivityInfo().applicationInfo.isInternal()) {
		throw new IllegalArgumentException("Only apps in internal storage can be active admin: "
		+ adminReceiver);
		}
		if (info.getActivityInfo().applicationInfo.isInstantApp()) {
		throw new IllegalArgumentException("Instant apps cannot be device admins: "
		+ adminReceiver);
		}
		/* throwForMissingPermission= */ true);
		synchronized (this) {
		checkActiveAdminPrecondition(adminReceiver, info, policy);
		long ident = mInjector.binderClearCallingIdentity();
		try {
		final ActiveAdmin existingAdmin
		@@ -3313,10 +3310,6 @@ public class DevicePolicyManagerService extends BaseIDevicePolicyManager {
		if (!refreshing && existingAdmin != null) {
		throw new IllegalArgumentException("Admin is already added");
		}
		if (policy.mRemovingAdmins.contains(adminReceiver)) {
		throw new IllegalArgumentException(
		"Trying to set an admin which is being removed");
		}
		ActiveAdmin newAdmin = new ActiveAdmin(info, /* parent */ false);
		newAdmin.testOnlyAdmin =
		(existingAdmin != null) ? existingAdmin.testOnlyAdmin
		@@ -3346,6 +3339,46 @@ public class DevicePolicyManagerService extends BaseIDevicePolicyManager {
		}
		}

		private void transferActiveAdminUncheckedLocked(ComponentName incomingReceiver,
		ComponentName outgoingReceiver, int userHandle) {
		final DevicePolicyData policy = getUserData(userHandle);
		final DeviceAdminInfo incomingDeviceInfo = findAdmin(incomingReceiver, userHandle,
		/* throwForMissingPermission= */ true);
		final ActiveAdmin adminToTransfer = policy.mAdminMap.get(outgoingReceiver);
		final int oldAdminUid = adminToTransfer.getUid();

		adminToTransfer.transfer(incomingDeviceInfo);
		policy.mAdminMap.remove(outgoingReceiver);
		policy.mAdminMap.put(incomingReceiver, adminToTransfer);
		if (policy.mPasswordOwner == oldAdminUid) {
		policy.mPasswordOwner = adminToTransfer.getUid();
		}

		saveSettingsLocked(userHandle);
		//TODO: Make sure we revert back when we detect a failure.
		sendAdminCommandLocked(adminToTransfer, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED,
		null, null);
		}

		private void checkActiveAdminPrecondition(ComponentName adminReceiver, DeviceAdminInfo info,
		DevicePolicyData policy) {
		if (info == null) {
		throw new IllegalArgumentException("Bad admin: " + adminReceiver);
		}
		if (!info.getActivityInfo().applicationInfo.isInternal()) {
		throw new IllegalArgumentException("Only apps in internal storage can be active admin: "
		+ adminReceiver);
		}
		if (info.getActivityInfo().applicationInfo.isInstantApp()) {
		throw new IllegalArgumentException("Instant apps cannot be device admins: "
		+ adminReceiver);
		}
		if (policy.mRemovingAdmins.contains(adminReceiver)) {
		throw new IllegalArgumentException(
		"Trying to set an admin which is being removed");
		}
		}

		@Override
		public boolean isAdminActive(ComponentName adminReceiver, int userHandle) {
		if (!mHasFeature) {
		@@ -11538,4 +11571,60 @@ public class DevicePolicyManagerService extends BaseIDevicePolicyManager {
		return new ArrayList<>(
		mOverlayPackagesProvider.getNonRequiredApps(admin, userId, provisioningAction));
		}

		//TODO: Add callback information to the javadoc once it is completed.
		//TODO: Make transferOwner atomic.
		@Override
		public void transferOwner(ComponentName admin, ComponentName target, PersistableBundle bundle) {
		if (!mHasFeature) {
		return;
		}

		Preconditions.checkNotNull(admin, "Admin cannot be null.");
		Preconditions.checkNotNull(target, "Target cannot be null.");

		enforceProfileOrDeviceOwner(admin);

		if (admin.equals(target)) {
		throw new IllegalArgumentException("Provided administrator and target are "
		+ "the same object.");
		}

		if (admin.getPackageName().equals(target.getPackageName())) {
		throw new IllegalArgumentException("Provided administrator and target have "
		+ "the same package name.");
		}

		final int callingUserId = mInjector.userHandleGetCallingUserId();
		final DevicePolicyData policy = getUserData(callingUserId);
		final DeviceAdminInfo incomingDeviceInfo = findAdmin(target, callingUserId,
		/* throwForMissingPermission= */ true);
		checkActiveAdminPrecondition(target, incomingDeviceInfo, policy);

		final long id = mInjector.binderClearCallingIdentity();
		try {
		//STOPSHIP add support for COMP, DO, edge cases when device is rebooted/work mode off,
		//transfer callbacks and broadcast
		if (isProfileOwner(admin, callingUserId)) {
		transferProfileOwner(admin, target, callingUserId);
		}
		} finally {
		mInjector.binderRestoreCallingIdentity(id);
		}
		}

		/**
		* Transfers the profile owner for user with id profileOwnerUserId from admin to target.
		*/
		private void transferProfileOwner(ComponentName admin, ComponentName target,
		int profileOwnerUserId) {
		synchronized (this) {
		transferActiveAdminUncheckedLocked(target, admin, profileOwnerUserId);
		mOwners.transferProfileOwner(target, profileOwnerUserId);
		Slog.i(LOG_TAG, "Profile owner set: " + target + " on user " + profileOwnerUserId);
		mOwners.writeProfileOwner(profileOwnerUserId);
		mDeviceAdminServiceController.startServiceForOwner(
		target.getPackageName(), profileOwnerUserId, "transfer-profile-owner");
		}
		}
		}

services/devicepolicy/java/com/android/server/devicepolicy/Owners.java

+11 −0

Original line number	Diff line number	Diff line
		@@ -277,6 +277,17 @@ class Owners {
		}
		}

		void transferProfileOwner(ComponentName target, int userId) {
		synchronized (mLock) {
		final OwnerInfo ownerInfo = mProfileOwners.get(userId);
		final OwnerInfo newOwnerInfo = new OwnerInfo(target.getPackageName(), target,
		ownerInfo.userRestrictionsMigrated, ownerInfo.remoteBugreportUri,
		ownerInfo.remoteBugreportHash);
		mProfileOwners.put(userId, newOwnerInfo);
		pushToPackageManagerLocked();
		}
		}

		ComponentName getProfileOwnerComponent(int userId) {
		synchronized (mLock) {
		OwnerInfo profileOwner = mProfileOwners.get(userId);