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 "photo_job_repository_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 std::shared_ptr<PhotoJobRepository> PhotoJobRepositoryFuzzer::fuzz_{nullptr};
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
33 /*
34 * describe: get data from outside untrusted data(g_data) which size is according to sizeof(T)
35 * tips: only support basic type
36 */
37 template<class T>
GetData()38 T GetData()
39 {
40 T object {};
41 size_t objectSize = sizeof(object);
42 if (RAW_DATA == nullptr || objectSize > g_dataSize - g_pos) {
43 return object;
44 }
45 errno_t ret = memcpy_s(&object, objectSize, RAW_DATA + g_pos, objectSize);
46 if (ret != EOK) {
47 return {};
48 }
49 g_pos += objectSize;
50 return object;
51 }
52
53 template<class T>
GetArrLength(T & arr)54 uint32_t GetArrLength(T& arr)
55 {
56 if (arr == nullptr) {
57 MEDIA_INFO_LOG("%{public}s: The array length is equal to 0", __func__);
58 return 0;
59 }
60 return sizeof(arr) / sizeof(arr[0]);
61 }
62
PhotoJobRepositoryFuzzTest()63 void PhotoJobRepositoryFuzzer::PhotoJobRepositoryFuzzTest()
64 {
65 if ((RAW_DATA == nullptr) || (g_dataSize > MAX_CODE_LEN) || (g_dataSize < MIN_SIZE_NUM)) {
66 return;
67 }
68
69 int32_t userId = GetData<int32_t>();
70 fuzz_ = std::make_shared<PhotoJobRepository>(userId);
71 CHECK_RETURN_ELOG(!fuzz_, "Create fuzz_ Error");
72 uint8_t randomNum = GetData<uint8_t>();
73 std::vector<std::string> testStrings = {"test1", "test2"};
74 std::string imageId(testStrings[randomNum % testStrings.size()]);
75 std::string key(testStrings[randomNum % testStrings.size()]);
76 DpsMetadata metadata;
77 int32_t value = GetData<int32_t>();
78 metadata.Set(key, value);
79 metadata.Get(key, value);
80 bool discardable = GetData<bool>();
81 fuzz_->AddDeferredJob(imageId, discardable, metadata);
82 fuzz_->RemoveDeferredJob(imageId, discardable);
83 fuzz_->RequestJob(imageId);
84 fuzz_->CancelJob(imageId);
85 fuzz_->RestoreJob(imageId);
86 fuzz_->GetJobState(imageId);
87 fuzz_->GetJob();
88 fuzz_->GetJobPriority(imageId);
89 fuzz_->GetJobRunningPriority(imageId);
90 }
91
Test()92 void Test()
93 {
94 auto photoJobRepository = std::make_unique<PhotoJobRepositoryFuzzer>();
95 if (photoJobRepository == nullptr) {
96 MEDIA_INFO_LOG("photoJobRepository is null");
97 return;
98 }
99 photoJobRepository->PhotoJobRepositoryFuzzTest();
100 }
101
102 typedef void (*TestFuncs[1])();
103
104 TestFuncs g_testFuncs = {
105 Test,
106 };
107
FuzzTest(const uint8_t * rawData,size_t size)108 bool FuzzTest(const uint8_t* rawData, size_t size)
109 {
110 // initialize data
111 RAW_DATA = rawData;
112 g_dataSize = size;
113 g_pos = 0;
114
115 uint32_t code = GetData<uint32_t>();
116 uint32_t len = GetArrLength(g_testFuncs);
117 if (len > 0) {
118 g_testFuncs[code % len]();
119 } else {
120 MEDIA_INFO_LOG("%{public}s: The len length is equal to 0", __func__);
121 }
122
123 return true;
124 }
125 } // namespace CameraStandard
126 } // namespace OHOS
127
128 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(uint8_t * data,size_t size)129 extern "C" int LLVMFuzzerTestOneInput(uint8_t* data, size_t size)
130 {
131 if (size < OHOS::CameraStandard::THRESHOLD) {
132 return 0;
133 }
134
135 OHOS::CameraStandard::FuzzTest(data, size);
136 return 0;
137 }