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 "audio_deferred_process_fuzzer.h"
17
18 #include "camera_log.h"
19 #include "camera_util.h"
20
21 namespace OHOS {
22 namespace CameraStandard {
23
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
31 /*
32 * describe: get data from outside untrusted data(g_data) which size is according to sizeof(T)
33 * tips: only support basic type
34 */
35 template<class T>
GetData()36 T GetData()
37 {
38 T object {};
39 size_t objectSize = sizeof(object);
40 if (RAW_DATA == nullptr || objectSize > g_dataSize - g_pos) {
41 return object;
42 }
43 errno_t ret = memcpy_s(&object, objectSize, RAW_DATA + g_pos, objectSize);
44 if (ret != EOK) {
45 return {};
46 }
47 g_pos += objectSize;
48 return object;
49 }
50
51 template<class T>
GetArrLength(T & arr)52 uint32_t GetArrLength(T& arr)
53 {
54 if (arr == nullptr) {
55 MEDIA_INFO_LOG("%{public}s: The array length is equal to 0", __func__);
56 return 0;
57 }
58 return sizeof(arr) / sizeof(arr[0]);
59 }
60
AudioDeferredProcessFuzzerTest()61 void AudioDeferredProcessFuzzer::AudioDeferredProcessFuzzerTest()
62 {
63 if ((RAW_DATA == nullptr) || (g_dataSize > MAX_CODE_LEN) || (g_dataSize < MIN_SIZE_NUM)) {
64 return;
65 }
66 audioDeferredProcess_ = std::make_shared<AudioDeferredProcess>();
67 CHECK_ERROR_RETURN_LOG(!audioDeferredProcess_, "Create audioDeferredProcess_ Error");
68
69 AudioStreamInfo inputOptions;
70 AudioStreamInfo outputOptions;
71 audioDeferredProcess_->GetOfflineEffectChain();
72 audioDeferredProcess_->StoreOptions(inputOptions, outputOptions);
73 audioDeferredProcess_->GetOneUnprocessedSize();
74 vector<sptr<AudioRecord>> audioRecords{};
75 vector<sptr<AudioRecord>> processedRecords{};
76 audioDeferredProcess_->Process(audioRecords, processedRecords);
77 audioDeferredProcess_->Release();
78 }
79
Test()80 void Test()
81 {
82 auto audioDeferredProcessFuzzer = std::make_shared<AudioDeferredProcessFuzzer>();
83 if (audioDeferredProcessFuzzer == nullptr) {
84 MEDIA_INFO_LOG("audioCapturerSessionFuzzer is null");
85 return;
86 }
87 audioDeferredProcessFuzzer->AudioDeferredProcessFuzzerTest();
88 }
89
90 typedef void (*TestFuncs[1])();
91
92 TestFuncs g_testFuncs = {
93 Test,
94 };
95
FuzzTest(const uint8_t * rawData,size_t size)96 bool FuzzTest(const uint8_t* rawData, size_t size)
97 {
98 // initialize data
99 RAW_DATA = rawData;
100 g_dataSize = size;
101 g_pos = 0;
102
103 uint32_t code = GetData<uint32_t>();
104 uint32_t len = GetArrLength(g_testFuncs);
105 if (len > 0) {
106 g_testFuncs[code % len]();
107 } else {
108 MEDIA_INFO_LOG("%{public}s: The len length is equal to 0", __func__);
109 }
110
111 return true;
112 }
113 } // namespace CameraStandard
114 } // namespace OHOS
115
116 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(uint8_t * data,size_t size)117 extern "C" int LLVMFuzzerTestOneInput(uint8_t* data, size_t size)
118 {
119 if (size < OHOS::CameraStandard::THRESHOLD) {
120 return 0;
121 }
122
123 OHOS::CameraStandard::FuzzTest(data, size);
124 return 0;
125 }