1 /*
2 * Copyright (c) 2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "shiftapppointerevent_fuzzer.h"
17
18 #include "input_manager.h"
19 #include "define_multimodal.h"
20 #include "mmi_service.h"
21 #include "mmi_log.h"
22
23
24 namespace OHOS {
25 namespace MMI {
26 template<class T>
GetObject(T & object,const uint8_t * data,size_t size)27 size_t GetObject(T& object, const uint8_t* data, size_t size)
28 {
29 size_t objectSize = sizeof(object);
30 if (objectSize > size) {
31 return 0;
32 }
33 errno_t ret = memcpy_s(&object, objectSize, data, objectSize);
34 if (ret != EOK) {
35 return 0;
36 }
37 return objectSize;
38 }
39
ShiftAppPointerEvent(const uint8_t * data,const size_t size,size_t & startPos)40 bool ShiftAppPointerEvent(const uint8_t* data, const size_t size, size_t& startPos)
41 {
42 bool autoGenDown;
43 ShiftWindowParam param;
44 startPos += GetObject<ShiftWindowParam>(param, data + startPos, size - startPos);
45 startPos += GetObject<bool>(autoGenDown, data + startPos, size - startPos);
46 InputManager::GetInstance()->ShiftAppPointerEvent(param, autoGenDown);
47 return true;
48 }
49
ShiftAppPointerEventNoHapTokenVerify(const uint8_t * data,const size_t size,size_t & startPos)50 bool ShiftAppPointerEventNoHapTokenVerify(const uint8_t* data, const size_t size, size_t& startPos)
51 {
52 ShiftWindowParam param;
53 bool autoGenDown;
54 startPos += GetObject<ShiftWindowParam>(param, data + startPos, size - startPos);
55 startPos += GetObject<bool>(autoGenDown, data + startPos, size - startPos);
56 WIN_MGR->ShiftAppPointerEvent(param, autoGenDown);
57 return true;
58 }
59
ShiftAppPointerEventFuzzTest(const uint8_t * data,const size_t size)60 bool ShiftAppPointerEventFuzzTest(const uint8_t* data, const size_t size)
61 {
62 size_t startPos = 0;
63 if (ShiftAppPointerEvent(data, size, startPos) && ShiftAppPointerEventNoHapTokenVerify(data, size, startPos)) {
64 return true;
65 }
66 return false;
67 }
68 } // MMI
69 } // OHOS
70
71 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)72 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
73 {
74 /* Run your code on data */
75 OHOS::MMI::ShiftAppPointerEventFuzzTest(data, size);
76 return 0;
77 }