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 "deferred_video_controller_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 static constexpr int32_t MAX_CODE_LEN = 512;
26 static constexpr int32_t MIN_SIZE_NUM = 4;
27 static const uint8_t* RAW_DATA = nullptr;
28 const size_t THRESHOLD = 10;
29 static size_t g_dataSize = 0;
30 static size_t g_pos;
31
32 std::shared_ptr<DeferredVideoController> DeferredVideoControllerFuzzer::fuzz_{nullptr};
33 std::shared_ptr<VideoStrategyCenter> DeferredVideoControllerFuzzer::center_{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
DeferredVideoControllerFuzzTest()65 void DeferredVideoControllerFuzzer::DeferredVideoControllerFuzzTest()
66 {
67 int32_t userId = GetData<int32_t>();
68 std::shared_ptr<VideoJobRepository> repository;
69 uint8_t randomNum = GetData<uint8_t>();
70 std::vector<std::string> testStrings = {"test1", "test2"};
71 std::string videoId(testStrings[randomNum % testStrings.size()]);
72 repository = std::make_shared<VideoJobRepository>(userId);
73 CHECK_ERROR_RETURN_LOG(!repository, "Create repository Error");
74 repository->SetJobPending(videoId);
75 repository->SetJobRunning(videoId);
76 repository->SetJobCompleted(videoId);
77 repository->SetJobFailed(videoId);
78 repository->SetJobPause(videoId);
79 repository->SetJobError(videoId);
80 center_ = std::make_shared<DeferredProcessing::VideoStrategyCenter>(userId, repository);
81 CHECK_ERROR_RETURN_LOG(!center_, "Create center_ Error");
82 const std::shared_ptr<VideoPostProcessor> postProcessor =
83 std::make_shared<VideoPostProcessor>(userId);
84 const std::shared_ptr<IVideoProcessCallbacksFuzz> callback =
85 std::make_shared<IVideoProcessCallbacksFuzz>();
86 std::shared_ptr<DeferredVideoProcessor> processor =
87 std::make_shared<DeferredVideoProcessor>(repository, postProcessor, callback);
88 fuzz_ = std::make_shared<DeferredVideoController>(userId, repository, processor);
89 CHECK_ERROR_RETURN_LOG(!fuzz_, "Create fuzz_ Error");
90 sptr<IPCFileDescriptor> srcFd = sptr<IPCFileDescriptor>::MakeSptr(GetData<int>());
91 sptr<IPCFileDescriptor> dstFd = sptr<IPCFileDescriptor>::MakeSptr(GetData<int>());
92 std::shared_ptr<DeferredVideoJob> jobPtr =
93 std::make_shared<DeferredVideoJob>(videoId, srcFd, dstFd);
94 fuzz_->Initialize();
95 fuzz_->OnVideoJobChanged(jobPtr);
96 constexpr int32_t executionModeCount1 = static_cast<int32_t>(ExecutionMode::DUMMY) + 1;
97 ExecutionMode selectedExecutionMode = static_cast<ExecutionMode>(GetData<uint8_t>() % executionModeCount1);
98 constexpr int32_t executionModeCount2 = static_cast<int32_t>(DpsError::DPS_ERROR_VIDEO_PROC_INTERRUPTED) + 1;
99 DpsError selectedDpsError = static_cast<DpsError>(GetData<uint8_t>() % executionModeCount2);
100 std::shared_ptr<DeferredVideoWork> work =
101 std::make_shared<DeferredVideoWork>(jobPtr, selectedExecutionMode, dstFd);
102 fuzz_->HandleSuccess(work);
103 fuzz_->HandleError(work, selectedDpsError);
104 fuzz_->HandleServiceDied();
105 fuzz_->TryDoSchedule();
106 fuzz_->PostProcess(work);
107 fuzz_->SetDefaultExecutionMode();
108 fuzz_->StartSuspendLock();
109 fuzz_->StopSuspendLock();
110 fuzz_->HandleNormalSchedule(work);
111 fuzz_->OnTimerOut();
112 }
113
Test()114 void Test()
115 {
116 if ((RAW_DATA == nullptr) || (g_dataSize > MAX_CODE_LEN) || (g_dataSize < MIN_SIZE_NUM)) {
117 return;
118 }
119 auto deferredVideoController = std::make_unique<DeferredVideoControllerFuzzer>();
120 if (deferredVideoController == nullptr) {
121 MEDIA_INFO_LOG("deferredVideoController is null");
122 return;
123 }
124 deferredVideoController->DeferredVideoControllerFuzzTest();
125 }
126
127 typedef void (*TestFuncs[1])();
128
129 TestFuncs g_testFuncs = {
130 Test,
131 };
132
FuzzTest(const uint8_t * rawData,size_t size)133 bool FuzzTest(const uint8_t* rawData, size_t size)
134 {
135 // initialize data
136 RAW_DATA = rawData;
137 g_dataSize = size;
138 g_pos = 0;
139
140 uint32_t code = GetData<uint32_t>();
141 uint32_t len = GetArrLength(g_testFuncs);
142 if (len > 0) {
143 g_testFuncs[code % len]();
144 } else {
145 MEDIA_INFO_LOG("%{public}s: The len length is equal to 0", __func__);
146 }
147
148 return true;
149 }
150 } // namespace CameraStandard
151 } // namespace OHOS
152
153 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(uint8_t * data,size_t size)154 extern "C" int LLVMFuzzerTestOneInput(uint8_t* data, size_t size)
155 {
156 if (size < OHOS::CameraStandard::THRESHOLD) {
157 return 0;
158 }
159
160 OHOS::CameraStandard::FuzzTest(data, size);
161 return 0;
162 }