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 "moving_photo_surface_wrapper_fuzzer.h"
17 #include "camera_input.h"
18 #include "camera_log.h"
19 #include "camera_photo_proxy.h"
20 #include "capture_input.h"
21 #include "capture_output.h"
22 #include "capture_scene_const.h"
23 #include "input/camera_manager.h"
24 #include "message_parcel.h"
25 #include "refbase.h"
26 #include <cstddef>
27 #include <cstdint>
28 #include <memory>
29 #include "token_setproc.h"
30 #include "nativetoken_kit.h"
31 #include "accesstoken_kit.h"
32 #include "securec.h"
33 #include <mutex>
34
35 namespace OHOS {
36 namespace CameraStandard {
37 static constexpr int32_t MAX_CODE_LEN = 512;
38 static constexpr int32_t MIN_SIZE_NUM = 4;
39 static const uint8_t* RAW_DATA = nullptr;
40 const size_t THRESHOLD = 10;
41 static size_t g_dataSize = 0;
42 static size_t g_pos;
43
44 std::shared_ptr<MovingPhotoSurfaceWrapper> MovingPhotoSurfaceWrapperFuzzer::fuzz_{nullptr};
45 std::shared_ptr<MovingPhotoSurfaceWrapper::BufferConsumerListener>
46 MovingPhotoSurfaceWrapperFuzzer::listener_{nullptr};
47
48 /*
49 * describe: get data from outside untrusted data(g_data) which size is according to sizeof(T)
50 * tips: only support basic type
51 */
52 template<class T>
GetData()53 T GetData()
54 {
55 T object {};
56 size_t objectSize = sizeof(object);
57 if (RAW_DATA == nullptr || objectSize > g_dataSize - g_pos) {
58 return object;
59 }
60 errno_t ret = memcpy_s(&object, objectSize, RAW_DATA + g_pos, objectSize);
61 if (ret != EOK) {
62 return {};
63 }
64 g_pos += objectSize;
65 return object;
66 }
67
68 template<class T>
GetArrLength(T & arr)69 uint32_t GetArrLength(T& arr)
70 {
71 if (arr == nullptr) {
72 MEDIA_INFO_LOG("%{public}s: The array length is equal to 0", __func__);
73 return 0;
74 }
75 return sizeof(arr) / sizeof(arr[0]);
76 }
77
MovingPhotoSurfaceWrapperFuzzTest()78 void MovingPhotoSurfaceWrapperFuzzer::MovingPhotoSurfaceWrapperFuzzTest()
79 {
80 if ((RAW_DATA == nullptr) || (g_dataSize > MAX_CODE_LEN) || (g_dataSize < MIN_SIZE_NUM)) {
81 return;
82 }
83 fuzz_ = std::make_shared<MovingPhotoSurfaceWrapper>();
84 CHECK_ERROR_RETURN_LOG(!fuzz_, "Create fuzz_ Error");
85 fuzz_->GetProducer();
86 int32_t width = GetData<int32_t>();
87 int32_t height = GetData<int32_t>();
88 fuzz_->CreateMovingPhotoSurfaceWrapper(width, height);
89 fuzz_->OnBufferArrival();
90 if (listener_ == nullptr) {
91 sptr<MovingPhotoSurfaceWrapper> surfaceWrapper = nullptr;
92 listener_ = std::make_shared<MovingPhotoSurfaceWrapper::BufferConsumerListener>(surfaceWrapper);
93 }
94 listener_->OnBufferAvailable();
95 }
96
Test()97 void Test()
98 {
99 auto movingPhotoSurfaceWrapper = std::make_unique<MovingPhotoSurfaceWrapperFuzzer>();
100 if (movingPhotoSurfaceWrapper == nullptr) {
101 MEDIA_INFO_LOG("movingPhotoSurfaceWrapper is null");
102 return;
103 }
104 movingPhotoSurfaceWrapper->MovingPhotoSurfaceWrapperFuzzTest();
105 }
106
107 typedef void (*TestFuncs[1])();
108
109 TestFuncs g_testFuncs = {
110 Test,
111 };
112
FuzzTest(const uint8_t * rawData,size_t size)113 bool FuzzTest(const uint8_t* rawData, size_t size)
114 {
115 // initialize data
116 RAW_DATA = rawData;
117 g_dataSize = size;
118 g_pos = 0;
119
120 uint32_t code = GetData<uint32_t>();
121 uint32_t len = GetArrLength(g_testFuncs);
122 if (len > 0) {
123 g_testFuncs[code % len]();
124 } else {
125 MEDIA_INFO_LOG("%{public}s: The len length is equal to 0", __func__);
126 }
127
128 return true;
129 }
130 } // namespace CameraStandard
131 } // namespace OHOS
132
133 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(uint8_t * data,size_t size)134 extern "C" int LLVMFuzzerTestOneInput(uint8_t* data, size_t size)
135 {
136 if (size < OHOS::CameraStandard::THRESHOLD) {
137 return 0;
138 }
139
140 OHOS::CameraStandard::FuzzTest(data, size);
141 return 0;
142 }