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 <cstdint>
17 #include <iostream>
18
19 #include "accesstoken_kit.h"
20 #include "nativetoken_kit.h"
21 #include "token_setproc.h"
22 #include "wallpaper_manager_common_info.h"
23 #include "wallpaper_manager_kits.h"
24 #include "pixel_map.h"
25
26 using namespace OHOS::Security::AccessToken;
27 using namespace OHOS::Media;
28
29 namespace OHOS {
30 constexpr size_t THRESHOLD = 10;
31 constexpr int32_t OFFSET = 4;
32
GrantNativePermission()33 void GrantNativePermission()
34 {
35 const char **perms = new const char *[2];
36 perms[0] = "ohos.permission.GET_WALLPAPER";
37 perms[1] = "ohos.permission.SET_WALLPAPER";
38 TokenInfoParams infoInstance = {
39 .dcapsNum = 0,
40 .permsNum = 2,
41 .aclsNum = 0,
42 .dcaps = nullptr,
43 .perms = perms,
44 .acls = nullptr,
45 .processName = "wallpaper_service",
46 .aplStr = "system_core",
47 };
48 uint64_t tokenId = GetAccessTokenId(&infoInstance);
49 SetSelfTokenID(tokenId);
50 AccessTokenKit::ReloadNativeTokenInfo();
51 delete[] perms;
52 }
53
54 class WallpaperColorChangeListenerFuzzTestImpl : public OHOS::WallpaperMgrService::WallpaperColorChangeListener {
55 public:
56 std::vector<uint64_t> color_;
57 int wallpaperType_;
58 WallpaperColorChangeListenerFuzzTestImpl();
~WallpaperColorChangeListenerFuzzTestImpl()59 ~WallpaperColorChangeListenerFuzzTestImpl()
60 {
61 }
62
63 WallpaperColorChangeListenerFuzzTestImpl(const WallpaperColorChangeListenerFuzzTestImpl &) = delete;
64 WallpaperColorChangeListenerFuzzTestImpl &operator=(const WallpaperColorChangeListenerFuzzTestImpl &) = delete;
65 WallpaperColorChangeListenerFuzzTestImpl(WallpaperColorChangeListenerFuzzTestImpl &&) = delete;
66 WallpaperColorChangeListenerFuzzTestImpl &operator=(WallpaperColorChangeListenerFuzzTestImpl &&) = delete;
67
68 // callback function will be called when the db data is changed.
69 void OnColorsChange(const std::vector<uint64_t> &color, int wallpaperType);
70
71 private:
72 unsigned long callCount_;
73 };
74
OnColorsChange(const std::vector<uint64_t> & color,int wallpaperType)75 void WallpaperColorChangeListenerFuzzTestImpl::OnColorsChange(const std::vector<uint64_t> &color, int wallpaperType)
76 {
77 callCount_++;
78 std::copy(color.begin(), color.end(), std::back_inserter(color_));
79 wallpaperType_ = wallpaperType;
80 }
81
WallpaperColorChangeListenerFuzzTestImpl()82 WallpaperColorChangeListenerFuzzTestImpl::WallpaperColorChangeListenerFuzzTestImpl()
83 : wallpaperType_(-1), callCount_(0)
84 {
85 }
86
ConvertToUint32(const uint8_t * ptr)87 uint32_t ConvertToUint32(const uint8_t *ptr)
88 {
89 if (ptr == nullptr) {
90 return 0;
91 }
92 uint32_t bigVar = (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | (ptr[3]);
93 return bigVar;
94 }
95
GetColorsFuzzTest(const uint8_t * data,size_t size)96 void GetColorsFuzzTest(const uint8_t *data, size_t size)
97 {
98 uint32_t wallpaperType = ConvertToUint32(data);
99 GrantNativePermission();
100 WallpaperMgrService::WallpaperManagerkits::GetInstance().GetColors(wallpaperType);
101 }
102
GetWallpaperIdFuzzTest(const uint8_t * data,size_t size)103 void GetWallpaperIdFuzzTest(const uint8_t *data, size_t size)
104 {
105 uint32_t wallpaperType = ConvertToUint32(data);
106 GrantNativePermission();
107 WallpaperMgrService::WallpaperManagerkits::GetInstance().GetWallpaperId(wallpaperType);
108 }
109
ResetWallpaperFuzzTest(const uint8_t * data,size_t size)110 void ResetWallpaperFuzzTest(const uint8_t *data, size_t size)
111 {
112 uint32_t wallpaperType = ConvertToUint32(data);
113 GrantNativePermission();
114 WallpaperMgrService::WallpaperManagerkits::GetInstance().ResetWallpaper(wallpaperType);
115 }
116
SetWallpaperByUrlFuzzTest(const uint8_t * data,size_t size)117 void SetWallpaperByUrlFuzzTest(const uint8_t *data, size_t size)
118 {
119 uint32_t wallpaperType = ConvertToUint32(data);
120 data = data + OFFSET;
121 size = size - OFFSET;
122 GrantNativePermission();
123 std::string url(reinterpret_cast<const char *>(data), size);
124 auto listener = std::make_shared<WallpaperColorChangeListenerFuzzTestImpl>();
125 WallpaperMgrService::WallpaperManagerkits::GetInstance().On("colorChange", listener);
126 WallpaperMgrService::WallpaperManagerkits::GetInstance().SetWallpaper(url, wallpaperType);
127 WallpaperMgrService::WallpaperManagerkits::GetInstance().Off("colorChange", listener);
128 }
129
SetWallpaperByMapFuzzTest(const uint8_t * data,size_t size)130 void SetWallpaperByMapFuzzTest(const uint8_t *data, size_t size)
131 {
132 uint32_t wallpaperType = ConvertToUint32(data);
133 GrantNativePermission();
134 uint32_t color[100] = { 3, 7, 9, 9, 7, 6 };
135 InitializationOptions opts = { { 5, 7 }, OHOS::Media::PixelFormat::ARGB_8888 };
136 std::unique_ptr<PixelMap> uniquePixelMap = PixelMap::Create(color, sizeof(color) / sizeof(color[0]), opts);
137 std::shared_ptr<PixelMap> pixelMap = std::move(uniquePixelMap);
138 auto listener = std::make_shared<WallpaperColorChangeListenerFuzzTestImpl>();
139 WallpaperMgrService::WallpaperManagerkits::GetInstance().On("colorChange", listener);
140 WallpaperMgrService::WallpaperManagerkits::GetInstance().SetWallpaper(pixelMap, wallpaperType);
141 WallpaperMgrService::WallpaperManagerkits::GetInstance().Off("colorChange", listener);
142 }
143
GetFileFuzzTest(const uint8_t * data,size_t size)144 void GetFileFuzzTest(const uint8_t *data, size_t size)
145 {
146 uint32_t wallpaperType = ConvertToUint32(data);
147 GrantNativePermission();
148 int32_t wallpaperFd = 0;
149 WallpaperMgrService::WallpaperManagerkits::GetInstance().GetFile(wallpaperType, wallpaperFd);
150 }
151
GetPixelMapFuzzTest(const uint8_t * data,size_t size)152 void GetPixelMapFuzzTest(const uint8_t *data, size_t size)
153 {
154 uint32_t wallpaperType = ConvertToUint32(data);
155 GrantNativePermission();
156 std::shared_ptr<OHOS::Media::PixelMap> pixelMap;
157 WallpaperMgrService::WallpaperManagerkits::GetInstance().GetPixelMap(wallpaperType, pixelMap);
158 }
159 } // namespace OHOS
160
161 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)162 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
163 {
164 if (data == nullptr || size < OHOS::THRESHOLD) {
165 return 0;
166 }
167 /* Run your code on data */
168 OHOS::GetColorsFuzzTest(data, size);
169 OHOS::GetWallpaperIdFuzzTest(data, size);
170 OHOS::ResetWallpaperFuzzTest(data, size);
171 OHOS::SetWallpaperByUrlFuzzTest(data, size);
172 OHOS::SetWallpaperByMapFuzzTest(data, size);
173 OHOS::GetFileFuzzTest(data, size);
174 OHOS::GetPixelMapFuzzTest(data, size);
175 return 0;
176 }