1 /*
2 * Copyright (c) 2024 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 #include "light_scan_session_fuzzer.h"
16 #include "camera_log.h"
17 #include "message_parcel.h"
18 #include "securec.h"
19 #include <memory>
20 #include "timer.h"
21 #include "input/camera_manager.h"
22 #include "system_ability_definition.h"
23 #include "iservice_registry.h"
24
25 namespace OHOS {
26 namespace CameraStandard {
27 static constexpr int32_t MAX_CODE_LEN = 512;
28 static constexpr int32_t MIN_SIZE_NUM = 4;
29 static const uint8_t* RAW_DATA = nullptr;
30 const size_t THRESHOLD = 10;
31 static size_t g_dataSize = 0;
32 static size_t g_pos;
33 sptr<LightPaintingSession> LightScanSessionFuzzer::fuzzLight_{nullptr};
34 sptr<ScanSession> LightScanSessionFuzzer::fuzzScan_{nullptr};
35
36 /*
37 * describe: get data from outside untrusted data(g_data) which size is according to sizeof(T)
38 * tips: only support basic type
39 */
40 template<class T>
GetData()41 T GetData()
42 {
43 T object {};
44 size_t objectSize = sizeof(object);
45 if (RAW_DATA == nullptr || objectSize > g_dataSize - g_pos) {
46 return object;
47 }
48 errno_t ret = memcpy_s(&object, objectSize, RAW_DATA + g_pos, objectSize);
49 if (ret != EOK) {
50 return {};
51 }
52 g_pos += objectSize;
53 return object;
54 }
55
56 template<class T>
GetArrLength(T & arr)57 uint32_t GetArrLength(T& arr)
58 {
59 if (arr == nullptr) {
60 MEDIA_INFO_LOG("%{public}s: The array length is equal to 0", __func__);
61 return 0;
62 }
63 return sizeof(arr) / sizeof(arr[0]);
64 }
65
66 sptr<CameraManager> cameraManager = CameraManager::GetInstance();
LightPaintingSessionFuzzTest()67 void LightScanSessionFuzzer::LightPaintingSessionFuzzTest()
68 {
69 if ((RAW_DATA == nullptr) || (g_dataSize > MAX_CODE_LEN) || (g_dataSize < MIN_SIZE_NUM)) {
70 return;
71 }
72 sptr<CameraManager> cameraManager = CameraManager::GetInstance();
73 sptr<CaptureSession> captureSession = cameraManager->CreateCaptureSession(SceneMode::SLOW_MOTION);
74 auto lightPaintingSession = static_cast<LightPaintingSession*>(captureSession.GetRefPtr());
75 fuzzLight_ = lightPaintingSession;
76 CHECK_ERROR_RETURN_LOG(!fuzzLight_, "Create fuzzLight_ Error");
77
78 std::vector<LightPaintingType> supportedType;
79 fuzzLight_->GetSupportedLightPaintings(supportedType);
80 LightPaintingType setType = LightPaintingType::LIGHT;
81 fuzzLight_->GetLightPainting(setType);
82 fuzzLight_->SetLightPainting(setType);
83 fuzzLight_->TriggerLighting();
84 }
ScanSessionFuzzTest()85 void LightScanSessionFuzzer::ScanSessionFuzzTest()
86 {
87 if ((RAW_DATA == nullptr) || (g_dataSize > MAX_CODE_LEN) || (g_dataSize < MIN_SIZE_NUM)) {
88 return;
89 }
90 sptr<CameraManager> cameraManager = CameraManager::GetInstance();
91 sptr<CaptureSession> captureSession = cameraManager->CreateCaptureSession(SceneMode::SLOW_MOTION);
92 sptr<ScanSession> scanSession = static_cast<ScanSession*>(captureSession.GetRefPtr());
93 fuzzScan_ = scanSession;
94 CHECK_ERROR_RETURN_LOG(!fuzzScan_, "Create fuzzScan_ Error");
95 fuzzScan_->BeginConfig();
96 sptr<CaptureOutput> preview = nullptr;
97 fuzzScan_->AddOutput(preview);
98 fuzzScan_->IsBrightnessStatusSupported();
99 fuzzScan_->UnRegisterBrightnessStatusCallback();
100 }
101
Test()102 void Test()
103 {
104 auto lightscansession = std::make_unique<LightScanSessionFuzzer>();
105 if (lightscansession == nullptr) {
106 MEDIA_INFO_LOG("lightscansession is null");
107 return;
108 }
109 MEDIA_INFO_LOG("yuanwp_fuzz 001");
110 lightscansession->LightPaintingSessionFuzzTest();
111 lightscansession->ScanSessionFuzzTest();
112 }
113
114 typedef void (*TestFuncs[1])();
115
116 TestFuncs g_testFuncs = {
117 Test,
118 };
119
FuzzTest(const uint8_t * rawData,size_t size)120 bool FuzzTest(const uint8_t* rawData, size_t size)
121 {
122 // initialize data
123 RAW_DATA = rawData;
124 g_dataSize = size;
125 g_pos = 0;
126
127 uint32_t code = GetData<uint32_t>();
128 uint32_t len = GetArrLength(g_testFuncs);
129 if (len > 0) {
130 g_testFuncs[code % len]();
131 } else {
132 MEDIA_INFO_LOG("%{public}s: The len length is equal to 0", __func__);
133 }
134
135 return true;
136 }
137 } // namespace CameraStandard
138 } // namespace OHOS
139
140 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(uint8_t * data,size_t size)141 extern "C" int LLVMFuzzerTestOneInput(uint8_t* data, size_t size)
142 {
143 if (size < OHOS::CameraStandard::THRESHOLD) {
144 return 0;
145 }
146 OHOS::CameraStandard::FuzzTest(data, size);
147 return 0;
148 }