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 "video_job_queue_fuzzer.h"
17 #include "camera_log.h"
18 #include "message_parcel.h"
19 #include "ipc_file_descriptor.h"
20 #include "securec.h"
21
22 namespace OHOS {
23 namespace CameraStandard {
24 using namespace DeferredProcessing;
25 using DeferredVideoJobPtr = std::shared_ptr<DeferredVideoJob>;
26 static constexpr int32_t MAX_CODE_LEN = 512;
27 static constexpr int32_t MIN_SIZE_NUM = 4;
28 static const uint8_t* RAW_DATA = nullptr;
29 const size_t THRESHOLD = 10;
30 static size_t g_dataSize = 0;
31 static size_t g_pos;
32 std::shared_ptr<VideoJobQueue> VideoJobQueueFuzzer::fuzz_{nullptr};
33 std::shared_ptr<DeferredVideoWork> DeferredVideoWorkFuzzer::fuzz_{nullptr};
34
35 /*
36 * describe: get data from outside untrusted data(g_data) which size is according to sizeof(T)
37 * tips: only support basic type
38 */
39 template<class T>
GetData()40 T GetData()
41 {
42 T object {};
43 size_t objectSize = sizeof(object);
44 if (RAW_DATA == nullptr || objectSize > g_dataSize - g_pos) {
45 return object;
46 }
47 errno_t ret = memcpy_s(&object, objectSize, RAW_DATA + g_pos, objectSize);
48 if (ret != EOK) {
49 return {};
50 }
51 g_pos += objectSize;
52 return object;
53 }
54
55 template<class T>
GetArrLength(T & arr)56 uint32_t GetArrLength(T& arr)
57 {
58 if (arr == nullptr) {
59 MEDIA_INFO_LOG("%{public}s: The array length is equal to 0", __func__);
60 return 0;
61 }
62 return sizeof(arr) / sizeof(arr[0]);
63 }
64
Initialization()65 void DeferredVideoWorkFuzzer::Initialization()
66 {
67 if ((RAW_DATA == nullptr) || (g_dataSize > MAX_CODE_LEN) || (g_dataSize < MIN_SIZE_NUM)) {
68 return;
69 }
70 uint8_t randomNum = GetData<uint8_t>();
71 std::vector<std::string> testStrings = {"test1", "test2"};
72 std::string videoId_(testStrings[randomNum % testStrings.size()]);
73
74 sptr<IPCFileDescriptor> srcFd = sptr<IPCFileDescriptor>::MakeSptr(GetData<int>());
75 sptr<IPCFileDescriptor> dstFd = sptr<IPCFileDescriptor>::MakeSptr(GetData<int>());
76
77 DeferredVideoJobPtr jobPtr = std::make_shared<DeferredVideoJob>(videoId_, srcFd, dstFd);
78 auto isAutoSuspend = GetData<bool>();
79 fuzz_ = std::make_shared<DeferredProcessing::
80 DeferredVideoWork>(jobPtr, ExecutionMode::HIGH_PERFORMANCE, isAutoSuspend);
81 CHECK_RETURN_ELOG(!fuzz_, "Create fuzz_ Error");
82 }
83
VideoJobQueueFuzzTest()84 void VideoJobQueueFuzzer::VideoJobQueueFuzzTest()
85 {
86 if ((RAW_DATA == nullptr) || (g_dataSize > MAX_CODE_LEN) || (g_dataSize < MIN_SIZE_NUM)) {
87 return;
88 }
89
90 uint8_t randomNum = GetData<uint8_t>();
91 std::vector<std::string> testStrings = {"test1", "test2"};
92 std::string videoId(testStrings[randomNum % testStrings.size()]);
93
94 sptr<IPCFileDescriptor> srcFd = sptr<IPCFileDescriptor>::MakeSptr(GetData<int>());
95 sptr<IPCFileDescriptor> dstFd = sptr<IPCFileDescriptor>::MakeSptr(GetData<int>());
96
97 DeferredVideoJobPtr jobPtr = std::make_shared<DeferredVideoJob>(videoId, srcFd, dstFd);
98 if (fuzz_ == nullptr) {
99 DeferredProcessing::VideoJobQueue::Comparator comp =
100 [](DeferredVideoJobPtr a, DeferredVideoJobPtr b) {
101 return a->GetVideoId() < b->GetVideoId();
102 };
103 fuzz_ = std::make_shared<DeferredProcessing::VideoJobQueue>(comp);
104 }
105 fuzz_->Contains(jobPtr);
106 fuzz_->Peek();
107 fuzz_->Push(jobPtr);
108 fuzz_->GetAllElements();
109 fuzz_->Pop();
110 fuzz_->Remove(jobPtr);
111 auto x = (GetData<uint32_t>());
112 auto y = (GetData<uint32_t>());
113 fuzz_->Swap(x, y);
114 }
115
Test()116 void Test()
117 {
118 auto deferredVideoWork = std::make_unique<DeferredVideoWorkFuzzer>();
119 if (deferredVideoWork == nullptr) {
120 MEDIA_INFO_LOG("deferredVideoWork is null");
121 return;
122 }
123 deferredVideoWork->Initialization();
124 auto videoJobQueue = std::make_unique<VideoJobQueueFuzzer>();
125 if (videoJobQueue == nullptr) {
126 MEDIA_INFO_LOG("videoJobQueue is null");
127 return;
128 }
129 videoJobQueue->VideoJobQueueFuzzTest();
130 }
131
132 typedef void (*TestFuncs[1])();
133
134 TestFuncs g_testFuncs = {
135 Test,
136 };
137
FuzzTest(const uint8_t * rawData,size_t size)138 bool FuzzTest(const uint8_t* rawData, size_t size)
139 {
140 // initialize data
141 RAW_DATA = rawData;
142 g_dataSize = size;
143 g_pos = 0;
144
145 uint32_t code = GetData<uint32_t>();
146 uint32_t len = GetArrLength(g_testFuncs);
147 if (len > 0) {
148 g_testFuncs[code % len]();
149 } else {
150 MEDIA_INFO_LOG("%{public}s: The len length is equal to 0", __func__);
151 }
152
153 return true;
154 }
155 } // namespace CameraStandard
156 } // namespace OHOS
157
158 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(uint8_t * data,size_t size)159 extern "C" int LLVMFuzzerTestOneInput(uint8_t* data, size_t size)
160 {
161 if (size < OHOS::CameraStandard::THRESHOLD) {
162 return 0;
163 }
164
165 OHOS::CameraStandard::FuzzTest(data, size);
166 return 0;
167 }