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 "updatedisplayinfo_fuzzer.h"
17
18 #include <string>
19
20 #include "securec.h"
21
22 #include "define_multimodal.h"
23 #include "input_manager.h"
24 #include "mmi_log.h"
25
26 namespace OHOS {
27 namespace MMI {
28 namespace {
29 constexpr OHOS::HiviewDFX::HiLogLabel LABEL = { LOG_CORE, MMI_LOG_DOMAIN, "UpdateDisplayInfoFuzzTest" };
30 } // namespace
31 template<class T>
GetObject(const uint8_t * data,size_t size,T & object)32 size_t GetObject(const uint8_t *data, size_t size, T &object)
33 {
34 size_t objSize = sizeof(object);
35 if (objSize > size) {
36 return 0;
37 }
38 errno_t ret = memcpy_s(&object, objSize, data, objSize);
39 if (ret != EOK) {
40 return 0;
41 }
42 return objSize;
43 }
44
GetString(const uint8_t * data,size_t size,char * object,size_t itemSize)45 size_t GetString(const uint8_t *data, size_t size, char *object, size_t itemSize)
46 {
47 if (itemSize > size) {
48 return 0;
49 }
50 errno_t ret = memcpy_s(&object, itemSize, data, itemSize);
51 if (ret != EOK) {
52 return 0;
53 }
54 return itemSize;
55 }
56
UpdateHotAreas(const uint8_t * data,size_t size,WindowInfo & windowInfo)57 void UpdateHotAreas(const uint8_t* data, size_t size, WindowInfo &windowInfo)
58 {
59 size_t startPos = 0;
60 std::vector<Rect> defaultHotAreasInfo;
61 std::vector<Rect> pointerHotAreasInfo;
62 for (size_t j = 0; j < WindowInfo::MAX_HOTAREA_COUNT; ++j) {
63 Rect defaultRect;
64 startPos += GetObject<int32_t>(data + startPos, size - startPos, defaultRect.y);
65 startPos += GetObject<int32_t>(data + startPos, size - startPos, defaultRect.width);
66 startPos += GetObject<int32_t>(data + startPos, size - startPos, defaultRect.x);
67 startPos += GetObject<int32_t>(data + startPos, size - startPos, defaultRect.height);
68 defaultHotAreasInfo.push_back(defaultRect);
69 Rect pointerRect;
70 startPos += GetObject<int32_t>(data + startPos, size - startPos, pointerRect.y);
71 startPos += GetObject<int32_t>(data + startPos, size - startPos, pointerRect.width);
72 startPos += GetObject<int32_t>(data + startPos, size - startPos, pointerRect.x);
73 startPos += GetObject<int32_t>(data + startPos, size - startPos, pointerRect.height);
74 pointerHotAreasInfo.push_back(pointerRect);
75 }
76 windowInfo.pointerHotAreas = pointerHotAreasInfo;
77 windowInfo.defaultHotAreas = defaultHotAreasInfo;
78 }
79
UpdateDisplayInfoFuzzTest(const uint8_t * data,size_t size)80 void UpdateDisplayInfoFuzzTest(const uint8_t* data, size_t size)
81 {
82 DisplayGroupInfo displayGroupInfo;
83 size_t startPos = 0;
84 size_t stringSize = 4;
85 startPos += GetObject<int32_t>(data + startPos, size - startPos, displayGroupInfo.width);
86 startPos += GetObject<int32_t>(data + startPos, size - startPos, displayGroupInfo.height);
87 startPos += GetObject<int32_t>(data + startPos, size - startPos, displayGroupInfo.focusWindowId);
88 std::vector<WindowInfo> windowsInfo;
89 std::vector<DisplayInfo> displaysInfo;
90 for (size_t i = 0; i < WindowInfo::MAX_HOTAREA_COUNT + 1; ++i) {
91 WindowInfo windowInfo;
92 startPos += GetObject<int32_t>(data + startPos, size - startPos, windowInfo.area.x);
93 startPos += GetObject<int32_t>(data + startPos, size - startPos, windowInfo.area.y);
94 startPos += GetObject<int32_t>(data + startPos, size - startPos, windowInfo.pid);
95 startPos += GetObject<int32_t>(data + startPos, size - startPos, windowInfo.uid);
96 startPos += GetObject<int32_t>(data + startPos, size - startPos, windowInfo.area.width);
97 startPos += GetObject<int32_t>(data + startPos, size - startPos, windowInfo.area.height);
98 startPos += GetObject<int32_t>(data + startPos, size - startPos, windowInfo.id);
99 UpdateHotAreas(data, size, windowInfo);
100 windowsInfo.push_back(windowInfo);
101
102 DisplayInfo displayInfo;
103 startPos += GetObject<int32_t>(data + startPos, size - startPos, displayInfo.dpi);
104 startPos += GetObject<int32_t>(data + startPos, size - startPos, displayInfo.x);
105 startPos += GetObject<int32_t>(data + startPos, size - startPos, displayInfo.y);
106 startPos += GetObject<int32_t>(data + startPos, size - startPos, displayInfo.width);
107 startPos += GetObject<int32_t>(data + startPos, size - startPos, displayInfo.height);
108 startPos += GetObject<int32_t>(data + startPos, size - startPos, displayInfo.id);
109 char name[] = "name";
110 startPos += GetString(data + startPos, size - startPos, name, stringSize);
111 displayInfo.name = name;
112 char uniq[] = "uniq";
113 startPos += GetString(data + startPos, size - startPos, uniq, stringSize);
114 displayInfo.uniq = uniq;
115 displaysInfo.push_back(displayInfo);
116 }
117 displayGroupInfo.windowsInfo = windowsInfo;
118 displayGroupInfo.displaysInfo = displaysInfo;
119 InputManager::GetInstance()->UpdateDisplayInfo(displayGroupInfo);
120 MMI_HILOGD("Update display info success");
121 }
122 } // namespace MMI
123 } // namespace OHOS
124
125 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)126 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
127 {
128 /* Run your code on data */
129 OHOS::MMI::UpdateDisplayInfoFuzzTest(data, size);
130 return 0;
131 }
132