1 /*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "../InputDispatcher.h"
18
19 #include <gtest/gtest.h>
20 #include <linux/input.h>
21
22 namespace android {
23
24 // An arbitrary time value.
25 static const nsecs_t ARBITRARY_TIME = 1234;
26
27 // An arbitrary device id.
28 static const int32_t DEVICE_ID = 1;
29
30 // An arbitrary injector pid / uid pair that has permission to inject events.
31 static const int32_t INJECTOR_PID = 999;
32 static const int32_t INJECTOR_UID = 1001;
33
34
35 // --- FakeInputDispatcherPolicy ---
36
37 class FakeInputDispatcherPolicy : public InputDispatcherPolicyInterface {
38 InputDispatcherConfiguration mConfig;
39
40 protected:
~FakeInputDispatcherPolicy()41 virtual ~FakeInputDispatcherPolicy() {
42 }
43
44 public:
FakeInputDispatcherPolicy()45 FakeInputDispatcherPolicy() {
46 }
47
48 private:
notifyConfigurationChanged(nsecs_t when)49 virtual void notifyConfigurationChanged(nsecs_t when) {
50 }
51
notifyANR(const sp<InputApplicationHandle> & inputApplicationHandle,const sp<InputWindowHandle> & inputWindowHandle)52 virtual nsecs_t notifyANR(const sp<InputApplicationHandle>& inputApplicationHandle,
53 const sp<InputWindowHandle>& inputWindowHandle) {
54 return 0;
55 }
56
notifyInputChannelBroken(const sp<InputWindowHandle> & inputWindowHandle)57 virtual void notifyInputChannelBroken(const sp<InputWindowHandle>& inputWindowHandle) {
58 }
59
getDispatcherConfiguration(InputDispatcherConfiguration * outConfig)60 virtual void getDispatcherConfiguration(InputDispatcherConfiguration* outConfig) {
61 *outConfig = mConfig;
62 }
63
isKeyRepeatEnabled()64 virtual bool isKeyRepeatEnabled() {
65 return true;
66 }
67
filterInputEvent(const InputEvent * inputEvent,uint32_t policyFlags)68 virtual bool filterInputEvent(const InputEvent* inputEvent, uint32_t policyFlags) {
69 return true;
70 }
71
interceptKeyBeforeQueueing(const KeyEvent * keyEvent,uint32_t & policyFlags)72 virtual void interceptKeyBeforeQueueing(const KeyEvent* keyEvent, uint32_t& policyFlags) {
73 }
74
interceptMotionBeforeQueueing(nsecs_t when,uint32_t & policyFlags)75 virtual void interceptMotionBeforeQueueing(nsecs_t when, uint32_t& policyFlags) {
76 }
77
interceptKeyBeforeDispatching(const sp<InputWindowHandle> & inputWindowHandle,const KeyEvent * keyEvent,uint32_t policyFlags)78 virtual nsecs_t interceptKeyBeforeDispatching(const sp<InputWindowHandle>& inputWindowHandle,
79 const KeyEvent* keyEvent, uint32_t policyFlags) {
80 return 0;
81 }
82
dispatchUnhandledKey(const sp<InputWindowHandle> & inputWindowHandle,const KeyEvent * keyEvent,uint32_t policyFlags,KeyEvent * outFallbackKeyEvent)83 virtual bool dispatchUnhandledKey(const sp<InputWindowHandle>& inputWindowHandle,
84 const KeyEvent* keyEvent, uint32_t policyFlags, KeyEvent* outFallbackKeyEvent) {
85 return false;
86 }
87
notifySwitch(nsecs_t when,int32_t switchCode,int32_t switchValue,uint32_t policyFlags)88 virtual void notifySwitch(nsecs_t when,
89 int32_t switchCode, int32_t switchValue, uint32_t policyFlags) {
90 }
91
pokeUserActivity(nsecs_t eventTime,int32_t eventType)92 virtual void pokeUserActivity(nsecs_t eventTime, int32_t eventType) {
93 }
94
checkInjectEventsPermissionNonReentrant(int32_t injectorPid,int32_t injectorUid)95 virtual bool checkInjectEventsPermissionNonReentrant(
96 int32_t injectorPid, int32_t injectorUid) {
97 return false;
98 }
99 };
100
101
102 // --- InputDispatcherTest ---
103
104 class InputDispatcherTest : public testing::Test {
105 protected:
106 sp<FakeInputDispatcherPolicy> mFakePolicy;
107 sp<InputDispatcher> mDispatcher;
108
SetUp()109 virtual void SetUp() {
110 mFakePolicy = new FakeInputDispatcherPolicy();
111 mDispatcher = new InputDispatcher(mFakePolicy);
112 }
113
TearDown()114 virtual void TearDown() {
115 mFakePolicy.clear();
116 mDispatcher.clear();
117 }
118 };
119
120
TEST_F(InputDispatcherTest,InjectInputEvent_ValidatesKeyEvents)121 TEST_F(InputDispatcherTest, InjectInputEvent_ValidatesKeyEvents) {
122 KeyEvent event;
123
124 // Rejects undefined key actions.
125 event.initialize(DEVICE_ID, AINPUT_SOURCE_KEYBOARD,
126 /*action*/ -1, 0,
127 AKEYCODE_A, KEY_A, AMETA_NONE, 0, ARBITRARY_TIME, ARBITRARY_TIME);
128 ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(&event,
129 INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
130 << "Should reject key events with undefined action.";
131
132 // Rejects ACTION_MULTIPLE since it is not supported despite being defined in the API.
133 event.initialize(DEVICE_ID, AINPUT_SOURCE_KEYBOARD,
134 AKEY_EVENT_ACTION_MULTIPLE, 0,
135 AKEYCODE_A, KEY_A, AMETA_NONE, 0, ARBITRARY_TIME, ARBITRARY_TIME);
136 ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(&event,
137 INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
138 << "Should reject key events with ACTION_MULTIPLE.";
139 }
140
TEST_F(InputDispatcherTest,InjectInputEvent_ValidatesMotionEvents)141 TEST_F(InputDispatcherTest, InjectInputEvent_ValidatesMotionEvents) {
142 MotionEvent event;
143 PointerProperties pointerProperties[MAX_POINTERS + 1];
144 PointerCoords pointerCoords[MAX_POINTERS + 1];
145 for (int i = 0; i <= MAX_POINTERS; i++) {
146 pointerProperties[i].clear();
147 pointerProperties[i].id = i;
148 pointerCoords[i].clear();
149 }
150
151 // Rejects undefined motion actions.
152 event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
153 /*action*/ -1, 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
154 ARBITRARY_TIME, ARBITRARY_TIME,
155 /*pointerCount*/ 1, pointerProperties, pointerCoords);
156 ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(&event,
157 INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
158 << "Should reject motion events with undefined action.";
159
160 // Rejects pointer down with invalid index.
161 event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
162 AMOTION_EVENT_ACTION_POINTER_DOWN | (1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
163 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
164 ARBITRARY_TIME, ARBITRARY_TIME,
165 /*pointerCount*/ 1, pointerProperties, pointerCoords);
166 ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(&event,
167 INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
168 << "Should reject motion events with pointer down index too large.";
169
170 event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
171 AMOTION_EVENT_ACTION_POINTER_DOWN | (-1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
172 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
173 ARBITRARY_TIME, ARBITRARY_TIME,
174 /*pointerCount*/ 1, pointerProperties, pointerCoords);
175 ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(&event,
176 INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
177 << "Should reject motion events with pointer down index too small.";
178
179 // Rejects pointer up with invalid index.
180 event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
181 AMOTION_EVENT_ACTION_POINTER_UP | (1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
182 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
183 ARBITRARY_TIME, ARBITRARY_TIME,
184 /*pointerCount*/ 1, pointerProperties, pointerCoords);
185 ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(&event,
186 INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
187 << "Should reject motion events with pointer up index too large.";
188
189 event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
190 AMOTION_EVENT_ACTION_POINTER_UP | (-1 << AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT),
191 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
192 ARBITRARY_TIME, ARBITRARY_TIME,
193 /*pointerCount*/ 1, pointerProperties, pointerCoords);
194 ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(&event,
195 INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
196 << "Should reject motion events with pointer up index too small.";
197
198 // Rejects motion events with invalid number of pointers.
199 event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
200 AMOTION_EVENT_ACTION_DOWN, 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
201 ARBITRARY_TIME, ARBITRARY_TIME,
202 /*pointerCount*/ 0, pointerProperties, pointerCoords);
203 ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(&event,
204 INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
205 << "Should reject motion events with 0 pointers.";
206
207 event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
208 AMOTION_EVENT_ACTION_DOWN, 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
209 ARBITRARY_TIME, ARBITRARY_TIME,
210 /*pointerCount*/ MAX_POINTERS + 1, pointerProperties, pointerCoords);
211 ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(&event,
212 INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
213 << "Should reject motion events with more than MAX_POINTERS pointers.";
214
215 // Rejects motion events with invalid pointer ids.
216 pointerProperties[0].id = -1;
217 event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
218 AMOTION_EVENT_ACTION_DOWN, 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
219 ARBITRARY_TIME, ARBITRARY_TIME,
220 /*pointerCount*/ 1, pointerProperties, pointerCoords);
221 ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(&event,
222 INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
223 << "Should reject motion events with pointer ids less than 0.";
224
225 pointerProperties[0].id = MAX_POINTER_ID + 1;
226 event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
227 AMOTION_EVENT_ACTION_DOWN, 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
228 ARBITRARY_TIME, ARBITRARY_TIME,
229 /*pointerCount*/ 1, pointerProperties, pointerCoords);
230 ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(&event,
231 INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
232 << "Should reject motion events with pointer ids greater than MAX_POINTER_ID.";
233
234 // Rejects motion events with duplicate pointer ids.
235 pointerProperties[0].id = 1;
236 pointerProperties[1].id = 1;
237 event.initialize(DEVICE_ID, AINPUT_SOURCE_TOUCHSCREEN,
238 AMOTION_EVENT_ACTION_DOWN, 0, 0, AMETA_NONE, 0, 0, 0, 0, 0,
239 ARBITRARY_TIME, ARBITRARY_TIME,
240 /*pointerCount*/ 2, pointerProperties, pointerCoords);
241 ASSERT_EQ(INPUT_EVENT_INJECTION_FAILED, mDispatcher->injectInputEvent(&event,
242 INJECTOR_PID, INJECTOR_UID, INPUT_EVENT_INJECTION_SYNC_NONE, 0, 0))
243 << "Should reject motion events with duplicate pointer ids.";
244 }
245
246 } // namespace android
247