Merge "Reland: Change input injection security model" into tm-dev am: d0f6ad2f30 (71931a53) · Commits · e / os / android_frameworks_base

core/java/android/app/ActivityManagerInternal.java

+5 −4

Original line number	Diff line number	Diff line
		@@ -568,14 +568,15 @@ public abstract class ActivityManagerInternal {
		public abstract void unregisterProcessObserver(IProcessObserver processObserver);

		/**
		* Checks if there is an unfinished instrumentation that targets the given uid.
		* Gets the uid of the instrumentation source if there is an unfinished instrumentation that
		* targets the given uid.
		*
		* @param uid The uid to be checked for
		*
		* @return True, if there is an instrumentation whose target application uid matches the given
		* uid, false otherwise
		* @return the uid of the instrumentation source, if there is an instrumentation whose target
		* application uid matches the given uid, and {@link android.os.Process#INVALID_UID} otherwise.
		*/
		public abstract boolean isUidCurrentlyInstrumented(int uid);
		public abstract int getInstrumentationSourceUid(int uid);

		/** Is this a device owner app? */
		public abstract boolean isDeviceOwner(int uid);

core/java/android/app/Instrumentation.java

+50 −37

Original line number	Diff line number	Diff line
		@@ -1058,10 +1058,11 @@ public class Instrumentation {
		}

		/**
		* Sends the key events corresponding to the text to the app being
		* instrumented.
		* Sends the key events that result in the given text being typed into the currently focused
		* window, and waits for it to be processed.
		*
		* @param text The text to be sent.
		* @see #sendKeySync(KeyEvent)
		*/
		public void sendStringSync(String text) {
		if (text == null) {
		@@ -1084,11 +1085,12 @@ public class Instrumentation {
		}

		/**
		* Send a key event to the currently focused window/view and wait for it to
		* be processed. Finished at some point after the recipient has returned
		* from its event processing, though it may <em>not</em> have completely
		* finished reacting from the event -- for example, if it needs to update
		* its display as a result, it may still be in the process of doing that.
		* Sends a key event to the currently focused window, and waits for it to be processed.
		* <p>
		* This method blocks until the recipient has finished handling the event. Note that the
		* recipient may <em>not</em> have completely finished reacting from the event when this method
		* returns. For example, it may still be in the process of updating its display or UI contents
		* upon reacting to the injected event.
		*
		* @param event The event to send to the current focus.
		*/
		@@ -1116,34 +1118,42 @@ public class Instrumentation {
		}

		/**
		* Sends an up and down key event sync to the currently focused window.
		* Sends up and down key events with the given key code to the currently focused window, and
		* waits for it to be processed.
		*
		* @param key The integer keycode for the event.
		* @param keyCode The key code for the events to send.
		* @see #sendKeySync(KeyEvent)
		*/
		public void sendKeyDownUpSync(int key) {
		sendKeySync(new KeyEvent(KeyEvent.ACTION_DOWN, key));
		sendKeySync(new KeyEvent(KeyEvent.ACTION_UP, key));
		public void sendKeyDownUpSync(int keyCode) {
		sendKeySync(new KeyEvent(KeyEvent.ACTION_DOWN, keyCode));
		sendKeySync(new KeyEvent(KeyEvent.ACTION_UP, keyCode));
		}

		/**
		* Higher-level method for sending both the down and up key events for a
		* particular character key code. Equivalent to creating both KeyEvent
		* objects by hand and calling {@link #sendKeySync}. The event appears
		* as if it came from keyboard 0, the built in one.
		* Sends up and down key events with the given key code to the currently focused window, and
		* waits for it to be processed.
		* <p>
		* Equivalent to {@link #sendKeyDownUpSync(int)}.
		*
		* @param keyCode The key code of the character to send.
		* @see #sendKeySync(KeyEvent)
		*/
		public void sendCharacterSync(int keyCode) {
		sendKeySync(new KeyEvent(KeyEvent.ACTION_DOWN, keyCode));
		sendKeySync(new KeyEvent(KeyEvent.ACTION_UP, keyCode));
		sendKeyDownUpSync(keyCode);
		}

		/**
		* Dispatch a pointer event. Finished at some point after the recipient has
		* returned from its event processing, though it may <em>not</em> have
		* completely finished reacting from the event -- for example, if it needs
		* to update its display as a result, it may still be in the process of
		* doing that.
		* Dispatches a pointer event into a window owned by the instrumented application, and waits for
		* it to be processed.
		* <p>
		* If the motion event being injected is targeted at a window that is not owned by the
		* instrumented application, the input injection will fail. See {@link #getUiAutomation()} for
		* injecting events into all windows.
		* <p>
		* This method blocks until the recipient has finished handling the event. Note that the
		* recipient may <em>not</em> have completely finished reacting from the event when this method
		* returns. For example, it may still be in the process of updating its display or UI contents
		* upon reacting to the injected event.
		*
		* @param event A motion event describing the pointer action. (As noted in
		* {@link MotionEvent#obtain(long, long, int, float, float, int)}, be sure to use
		@@ -1155,10 +1165,10 @@ public class Instrumentation {
		event.setSource(InputDevice.SOURCE_TOUCHSCREEN);
		}

		syncInputTransactionsAndInjectEvent(event);
		syncInputTransactionsAndInjectEventIntoSelf(event);
		}

		private void syncInputTransactionsAndInjectEvent(MotionEvent event) {
		private void syncInputTransactionsAndInjectEventIntoSelf(MotionEvent event) {
		final boolean syncBefore = event.getAction() == MotionEvent.ACTION_DOWN
		\|\| event.isFromSource(InputDevice.SOURCE_MOUSE);
		final boolean syncAfter = event.getAction() == MotionEvent.ACTION_UP;
		@@ -1169,8 +1179,9 @@ public class Instrumentation {
		.syncInputTransactions(true /waitForAnimations/);
		}

		// Direct the injected event into windows owned by the instrumentation target.
		InputManager.getInstance().injectInputEvent(
		event, InputManager.INJECT_INPUT_EVENT_MODE_WAIT_FOR_FINISH);
		event, InputManager.INJECT_INPUT_EVENT_MODE_WAIT_FOR_FINISH, Process.myUid());

		if (syncAfter) {
		WindowManagerGlobal.getWindowManagerService()
		@@ -1182,11 +1193,13 @@ public class Instrumentation {
		}

		/**
		* Dispatch a trackball event. Finished at some point after the recipient has
		* returned from its event processing, though it may <em>not</em> have
		* completely finished reacting from the event -- for example, if it needs
		* to update its display as a result, it may still be in the process of
		* doing that.
		* Dispatches a trackball event into the currently focused window, and waits for it to be
		* processed.
		* <p>
		* This method blocks until the recipient has finished handling the event. Note that the
		* recipient may <em>not</em> have completely finished reacting from the event when this method
		* returns. For example, it may still be in the process of updating its display or UI contents
		* upon reacting to the injected event.
		*
		* @param event A motion event describing the trackball action. (As noted in
		* {@link MotionEvent#obtain(long, long, int, float, float, int)}, be sure to use
		@@ -1194,7 +1207,7 @@ public class Instrumentation {
		*/
		public void sendTrackballEventSync(MotionEvent event) {
		validateNotAppThread();
		if ((event.getSource() & InputDevice.SOURCE_CLASS_TRACKBALL) == 0) {
		if (!event.isFromSource(InputDevice.SOURCE_CLASS_TRACKBALL)) {
		event.setSource(InputDevice.SOURCE_TRACKBALL);
		}
		InputManager.getInstance().injectInputEvent(event,

core/java/android/hardware/input/IInputManager.aidl

+7 −2

Original line number	Diff line number	Diff line
		@@ -57,11 +57,16 @@ interface IInputManager {
		// Temporarily changes the pointer speed.
		void tryPointerSpeed(int speed);

		// Injects an input event into the system. To inject into windows owned by other
		// applications, the caller must have the INJECT_EVENTS permission.
		// Injects an input event into the system. The caller must have the INJECT_EVENTS permssion.
		// This method exists only for compatibility purposes and may be removed in a future release.
		@UnsupportedAppUsage
		boolean injectInputEvent(in InputEvent ev, int mode);

		// Injects an input event into the system. The caller must have the INJECT_EVENTS permission.
		// The caller can target windows owned by a certain UID by providing a valid UID, or by
		// providing {@link android.os.Process#INVALID_UID} to target all windows.
		boolean injectInputEventToTarget(in InputEvent ev, int mode, int targetUid);

		VerifiedInputEvent verifyInputEvent(in InputEvent ev);

		// Calibrate input device position

core/java/android/hardware/input/InputManager.java

+40 −7

Original line number	Diff line number	Diff line
		@@ -45,6 +45,7 @@ import android.os.IVibratorStateListener;
		import android.os.InputEventInjectionSync;
		import android.os.Looper;
		import android.os.Message;
		import android.os.Process;
		import android.os.RemoteException;
		import android.os.ServiceManager;
		import android.os.ServiceManager.ServiceNotFoundException;
		@@ -1107,14 +1108,18 @@ public final class InputManager {
		}
		}


		/**
		* Injects an input event into the event system on behalf of an application.
		* Injects an input event into the event system, targeting windows owned by the provided uid.
		*
		* If a valid targetUid is provided, the system will only consider injecting the input event
		* into windows owned by the provided uid. If the input event is targeted at a window that is
		* not owned by the provided uid, input injection will fail and a RemoteException will be
		* thrown.
		*
		* The synchronization mode determines whether the method blocks while waiting for
		* input injection to proceed.
		* <p>
		* Requires {@link android.Manifest.permission.INJECT_EVENTS} to inject into
		* windows that are owned by other applications.
		* Requires the {@link android.Manifest.permission.INJECT_EVENTS} permission.
		* </p><p>
		* Make sure you correctly set the event time and input source of the event
		* before calling this method.
		@@ -1125,12 +1130,14 @@ public final class InputManager {
		* {@link android.os.InputEventInjectionSync.NONE},
		* {@link android.os.InputEventInjectionSync.WAIT_FOR_RESULT}, or
		* {@link android.os.InputEventInjectionSync.WAIT_FOR_FINISHED}.
		* @param targetUid The uid to target, or {@link android.os.Process#INVALID_UID} to target all
		* windows.
		* @return True if input event injection succeeded.
		*
		* @hide
		*/
		@UnsupportedAppUsage
		public boolean injectInputEvent(InputEvent event, int mode) {
		@RequiresPermission(Manifest.permission.INJECT_EVENTS)
		public boolean injectInputEvent(InputEvent event, int mode, int targetUid) {
		if (event == null) {
		throw new IllegalArgumentException("event must not be null");
		}
		@@ -1141,12 +1148,38 @@ public final class InputManager {
		}

		try {
		return mIm.injectInputEvent(event, mode);
		return mIm.injectInputEventToTarget(event, mode, targetUid);
		} catch (RemoteException ex) {
		throw ex.rethrowFromSystemServer();
		}
		}

		/**
		* Injects an input event into the event system on behalf of an application.
		* The synchronization mode determines whether the method blocks while waiting for
		* input injection to proceed.
		* <p>
		* Requires the {@link android.Manifest.permission.INJECT_EVENTS} permission.
		* </p><p>
		* Make sure you correctly set the event time and input source of the event
		* before calling this method.
		* </p>
		*
		* @param event The event to inject.
		* @param mode The synchronization mode. One of:
		* {@link android.os.InputEventInjectionSync.NONE},
		* {@link android.os.InputEventInjectionSync.WAIT_FOR_RESULT}, or
		* {@link android.os.InputEventInjectionSync.WAIT_FOR_FINISHED}.
		* @return True if input event injection succeeded.
		*
		* @hide
		*/
		@RequiresPermission(Manifest.permission.INJECT_EVENTS)
		@UnsupportedAppUsage
		public boolean injectInputEvent(InputEvent event, int mode) {
		return injectInputEvent(event, mode, Process.INVALID_UID);
		}

		/**
		* Verify the details of an {@link android.view.InputEvent} that came from the system.
		* If the event did not come from the system, or its details could not be verified, then this

services/core/java/com/android/server/am/ActivityManagerService.java

+3 −3

Original line number	Diff line number	Diff line
		@@ -17195,17 +17195,17 @@ public class ActivityManagerService extends IActivityManager.Stub
		}

		@Override
		public boolean isUidCurrentlyInstrumented(int uid) {
		public int getInstrumentationSourceUid(int uid) {
		synchronized (mProcLock) {
		for (int i = mActiveInstrumentation.size() - 1; i >= 0; i--) {
		ActiveInstrumentation activeInst = mActiveInstrumentation.get(i);
		if (!activeInst.mFinished && activeInst.mTargetInfo != null
		&& activeInst.mTargetInfo.uid == uid) {
		return true;
		return activeInst.mSourceUid;
		}
		}
		}
		return false;
		return INVALID_UID;
		}

		@Override