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
16 #include "avcodev_task_manager_fuzzer.h"
17 #include "message_parcel.h"
18 #include "securec.h"
19 #include "camera_log.h"
20
21 namespace OHOS {
22 namespace CameraStandard {
23 using namespace DeferredProcessing;
24 static constexpr int32_t MAX_CODE_LEN = 512;
25 static constexpr int32_t MIN_SIZE_NUM = 4;
26 static const uint8_t* RAW_DATA = nullptr;
27 const size_t THRESHOLD = 10;
28 static size_t g_dataSize = 0;
29 static size_t g_pos;
30 std::shared_ptr<AvcodecTaskManager> AvcodecTaskManagerFuzzer::fuzz_{nullptr};
31
32 /*
33 * describe: get data from outside untrusted data(g_data) which size is according to sizeof(T)
34 * tips: only support basic type
35 */
36 template<class T>
GetData()37 T GetData()
38 {
39 T object {};
40 size_t objectSize = sizeof(object);
41 if (RAW_DATA == nullptr || objectSize > g_dataSize - g_pos) {
42 return object;
43 }
44 errno_t ret = memcpy_s(&object, objectSize, RAW_DATA + g_pos, objectSize);
45 if (ret != EOK) {
46 return {};
47 }
48 g_pos += objectSize;
49 return object;
50 }
51
52 template<class T>
GetArrLength(T & arr)53 uint32_t GetArrLength(T& arr)
54 {
55 if (arr == nullptr) {
56 MEDIA_INFO_LOG("%{public}s: The array length is equal to 0", __func__);
57 return 0;
58 }
59 return sizeof(arr) / sizeof(arr[0]);
60 }
61
AvcodecTaskManagerFuzzTest()62 void AvcodecTaskManagerFuzzer::AvcodecTaskManagerFuzzTest()
63 {
64 if ((RAW_DATA == nullptr) || (g_dataSize > MAX_CODE_LEN) || (g_dataSize < MIN_SIZE_NUM)) {
65 return;
66 }
67 sptr<AudioCapturerSession> session = new AudioCapturerSession();
68 VideoCodecType type = VideoCodecType::VIDEO_ENCODE_TYPE_AVC;
69 ColorSpace colorSpace = ColorSpace::DISPLAY_P3;
70 fuzz_ = std::make_shared<AvcodecTaskManager>(session, type, colorSpace);
71 CHECK_ERROR_RETURN_LOG(!fuzz_, "Create fuzz_ Error");
72 fuzz_->GetTaskManager();
73 fuzz_->GetEncoderManager();
74 int64_t timestamp = GetData<int64_t>();
75 GraphicTransformType type_ = GRAPHIC_ROTATE_90;
76 sptr<SurfaceBuffer> videoBuffer = SurfaceBuffer::Create();
77 sptr<FrameRecord> frameRecord =
78 new(std::nothrow) FrameRecord(videoBuffer, timestamp, type_);
79 function<void()> task = []() {};
80 fuzz_->SubmitTask(task);
81 std::shared_ptr<PhotoAssetIntf> photoAssetProxy = nullptr;
82 int32_t captureId = GetData<int32_t>();
83 int32_t captureRotation = GetData<int32_t>();
84 uint64_t taskName = GetData<uint64_t>();
85 fuzz_->SetVideoFd(timestamp, photoAssetProxy, captureId);
86 vector<sptr<FrameRecord>> frameRecords;
87 fuzz_->DoMuxerVideo(frameRecords, taskName, captureRotation, captureId);
88 vector<sptr<FrameRecord>> choosedBuffer;
89 int64_t shutterTime = GetData<int64_t>();
90 fuzz_->ChooseVideoBuffer(frameRecords, choosedBuffer, shutterTime, captureId);
91 vector<sptr<AudioRecord>> audioRecordVec;
92 sptr<AudioVideoMuxer> muxer;
93 fuzz_->CollectAudioBuffer(audioRecordVec, muxer);
94 fuzz_->videoEncoder_ = nullptr;
95 fuzz_->audioEncoder_ = make_unique<AudioEncoder>();
96 fuzz_->Stop();
97 }
98
Test()99 void Test()
100 {
101 auto avcodecTaskManager = std::make_unique<AvcodecTaskManagerFuzzer>();
102 if (avcodecTaskManager == nullptr) {
103 MEDIA_INFO_LOG("avcodecTaskManager is null");
104 return;
105 }
106 avcodecTaskManager->AvcodecTaskManagerFuzzTest();
107 }
108
109 typedef void (*TestFuncs[1])();
110
111 TestFuncs g_testFuncs = {
112 Test,
113 };
114
FuzzTest(const uint8_t * rawData,size_t size)115 bool FuzzTest(const uint8_t* rawData, size_t size)
116 {
117 // initialize data
118 RAW_DATA = rawData;
119 g_dataSize = size;
120 g_pos = 0;
121
122 uint32_t code = GetData<uint32_t>();
123 uint32_t len = GetArrLength(g_testFuncs);
124 if (len > 0) {
125 g_testFuncs[code % len]();
126 } else {
127 MEDIA_INFO_LOG("%{public}s: The len length is equal to 0", __func__);
128 }
129
130 return true;
131 }
132 } // namespace CameraStandard
133 } // namespace OHOS
134
135 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(uint8_t * data,size_t size)136 extern "C" int LLVMFuzzerTestOneInput(uint8_t* data, size_t size)
137 {
138 if (size < OHOS::CameraStandard::THRESHOLD) {
139 return 0;
140 }
141
142 OHOS::CameraStandard::FuzzTest(data, size);
143 return 0;
144 }