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 #undef MMI_LOG_TAG
27 #define MMI_LOG_TAG "UpdateDisplayInfoFuzzTest"
28
29 namespace OHOS {
30 namespace MMI {
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 std::vector<int32_t> pointerChangeAreasInfos;
79 for (size_t j = 0; j < WindowInfo::POINTER_CHANGEAREA_COUNT; ++j) {
80 int32_t temp = 0;
81 startPos += GetObject<int32_t>(data + startPos, size - startPos, temp);
82 pointerChangeAreasInfos.push_back(temp);
83 }
84 windowInfo.pointerChangeAreas = pointerChangeAreasInfos;
85 std::vector<float> transformInfos;
86 for (size_t j = 0; j < WindowInfo::WINDOW_TRANSFORM_SIZE; ++j) {
87 float temp = 0;
88 startPos += GetObject<float>(data + startPos, size - startPos, temp);
89 transformInfos.push_back(temp);
90 }
91 windowInfo.transform = transformInfos;
92 }
93
UpdateDisplayInfoFuzzTest(const uint8_t * data,size_t size)94 void UpdateDisplayInfoFuzzTest(const uint8_t* data, size_t size)
95 {
96 DisplayGroupInfo displayGroupInfo;
97 size_t startPos = 0;
98 size_t stringSize = 4;
99 int32_t displayWidth = 0;
100 int32_t displayHeight = 0;
101 startPos += GetObject<int32_t>(data + startPos, size - startPos, displayWidth);
102 startPos += GetObject<int32_t>(data + startPos, size - startPos, displayHeight);
103 startPos += GetObject<int32_t>(data + startPos, size - startPos, displayGroupInfo.focusWindowId);
104 std::vector<WindowInfo> windowsInfo;
105 std::vector<DisplayInfo> displaysInfo;
106 std::vector<ScreenInfo> screenInfos;
107 for (size_t i = 0; i < WindowInfo::MAX_HOTAREA_COUNT + 1; ++i) {
108 WindowInfo windowInfo;
109 startPos += GetObject<int32_t>(data + startPos, size - startPos, windowInfo.area.x);
110 startPos += GetObject<int32_t>(data + startPos, size - startPos, windowInfo.area.y);
111 startPos += GetObject<int32_t>(data + startPos, size - startPos, windowInfo.pid);
112 startPos += GetObject<int32_t>(data + startPos, size - startPos, windowInfo.uid);
113 startPos += GetObject<int32_t>(data + startPos, size - startPos, windowInfo.area.width);
114 startPos += GetObject<int32_t>(data + startPos, size - startPos, windowInfo.area.height);
115 startPos += GetObject<int32_t>(data + startPos, size - startPos, windowInfo.id);
116 UpdateHotAreas(data, size, windowInfo);
117 windowsInfo.push_back(windowInfo);
118
119 DisplayInfo displayInfo;
120 startPos += GetObject<int32_t>(data + startPos, size - startPos, displayInfo.dpi);
121 startPos += GetObject<int32_t>(data + startPos, size - startPos, displayInfo.x);
122 startPos += GetObject<int32_t>(data + startPos, size - startPos, displayInfo.y);
123 startPos += GetObject<int32_t>(data + startPos, size - startPos, displayInfo.width);
124 startPos += GetObject<int32_t>(data + startPos, size - startPos, displayInfo.height);
125 startPos += GetObject<int32_t>(data + startPos, size - startPos, displayInfo.id);
126 char name[] = "name";
127 startPos += GetString(data + startPos, size - startPos, name, stringSize);
128 displayInfo.name = name;
129 char uniq[] = "uniq";
130 startPos += GetString(data + startPos, size - startPos, uniq, stringSize);
131 displaysInfo.push_back(displayInfo);
132
133 ScreenInfo screenInfo;
134 screenInfo.screenType =(ScreenType)windowInfo.windowType;
135 screenInfo.dpi = displayInfo.dpi;
136 screenInfo.height = windowInfo.area.height;
137 screenInfo.width = windowInfo.area.width;
138 screenInfo.physicalWidth = displayWidth;
139 screenInfo.physicalHeight = displayHeight;
140 screenInfo.id = displayInfo.id;
141 screenInfo.rotation = Rotation::ROTATION_0;
142 screenInfo.tpDirection = Direction::DIRECTION0;
143 screenInfo.uniqueId = uniq;
144 screenInfos.push_back(screenInfo);
145 }
146 displayGroupInfo.windowsInfo = windowsInfo;
147 displayGroupInfo.displaysInfo = displaysInfo;
148
149 UserScreenInfo userScreenInfo;
150 userScreenInfo.displayGroups.push_back(displayGroupInfo);
151 userScreenInfo.screens = screenInfos;
152 InputManager::GetInstance()->UpdateDisplayInfo(userScreenInfo);
153 MMI_HILOGD("Update display info success");
154 }
155 } // namespace MMI
156 } // namespace OHOS
157
158 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)159 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
160 {
161 /* Run your code on data */
162 OHOS::MMI::UpdateDisplayInfoFuzzTest(data, size);
163 return 0;
164 }
165