1 /*
2 * Copyright (c) 2023 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 "camera_input_fuzzer.h"
17 #include "camera_input.h"
18 #include "camera_log.h"
19 #include "input/camera_device.h"
20 #include "input/camera_manager.h"
21 #include "message_parcel.h"
22 #include <cstddef>
23 #include <cstdint>
24 #include <memory>
25 #include "token_setproc.h"
26 #include "nativetoken_kit.h"
27 #include "accesstoken_kit.h"
28
29 namespace OHOS {
30 namespace CameraStandard {
31 namespace CameraInputFuzzer {
32 const int32_t LIMITSIZE = 4;
33 const int32_t CAM_NUM = 2;
34 bool g_isCameraDevicePermission = false;
35 static pid_t g_pid = 0;
36
GetPermission()37 void GetPermission()
38 {
39 uint64_t tokenId;
40 const char* perms[2];
41 perms[0] = "ohos.permission.DISTRIBUTED_DATASYNC";
42 perms[1] = "ohos.permission.CAMERA";
43 NativeTokenInfoParams infoInstance = {
44 .dcapsNum = 0,
45 .permsNum = 2,
46 .aclsNum = 0,
47 .dcaps = NULL,
48 .perms = perms,
49 .acls = NULL,
50 .processName = "native_camera_tdd",
51 .aplStr = "system_basic",
52 };
53 tokenId = GetAccessTokenId(&infoInstance);
54 SetSelfTokenID(tokenId);
55 OHOS::Security::AccessToken::AccessTokenKit::ReloadNativeTokenInfo();
56 }
57
Test(uint8_t * rawData,size_t size)58 void Test(uint8_t *rawData, size_t size)
59 {
60 CHECK_ERROR_RETURN(rawData == nullptr || size < LIMITSIZE);
61 GetPermission();
62 auto manager = CameraManager::GetInstance();
63 CHECK_ERROR_RETURN_LOG(!manager, "CameraInputFuzzer: Get CameraManager instance Error");
64 auto cameras = manager->GetSupportedCameras();
65 CHECK_ERROR_RETURN_LOG(cameras.size() < CAM_NUM, "CameraInputFuzzer: GetSupportedCameras Error");
66 MessageParcel data;
67 data.WriteRawData(rawData, size);
68 auto camera = cameras[data.ReadUint32() % cameras.size()];
69 CHECK_ERROR_RETURN_LOG(!camera, "CameraInputFuzzer: Camera is null Error");
70 auto input = manager->CreateCameraInput(camera);
71 CHECK_ERROR_RETURN_LOG(!input, "CameraInputFuzzer: CreateCameraInput Error");
72 std::shared_ptr<CameraOcclusionDetectCallback> cameraOcclusionDetectCallback
73 = std::make_shared<CameraOcclusionDetectCallbackTest>();
74 input->SetOcclusionDetectCallback(cameraOcclusionDetectCallback);
75 std::shared_ptr<CameraDeviceServiceCallback> cameraDeviceServiceCallback =
76 std::make_shared<CameraDeviceServiceCallback>(input);
77 uint64_t timestamp = 10;
78 std::shared_ptr<OHOS::Camera::CameraMetadata> metadata = nullptr;
79 const int32_t defaultItems = 10;
80 const int32_t defaultDataLength = 100;
81 int32_t count = 1;
82 int32_t isOcclusionDetected = 1;
83 int32_t isLensDirtyDetected = 1;
84 metadata = std::make_shared<OHOS::Camera::CameraMetadata>(defaultItems, defaultDataLength);
85 metadata->addEntry(OHOS_STATUS_CAMERA_OCCLUSION_DETECTION, &isOcclusionDetected, count);
86 cameraDeviceServiceCallback->OnResult(timestamp, metadata);
87 metadata = std::make_shared<OHOS::Camera::CameraMetadata>(defaultItems, defaultDataLength);
88 metadata->addEntry(OHOS_STATUS_CAMERA_LENS_DIRTY_DETECTION, &isLensDirtyDetected, count);
89 cameraDeviceServiceCallback->OnResult(timestamp, metadata);
90 metadata = std::make_shared<OHOS::Camera::CameraMetadata>(defaultItems, defaultDataLength);
91 metadata->addEntry(OHOS_STATUS_CAMERA_OCCLUSION_DETECTION, &isOcclusionDetected, count);
92 metadata->addEntry(OHOS_STATUS_CAMERA_LENS_DIRTY_DETECTION, &isLensDirtyDetected, count);
93 cameraDeviceServiceCallback->OnResult(timestamp, metadata);
94 TestInput(input, rawData, size);
95 }
96
TestInput(sptr<CameraInput> input,uint8_t * rawData,size_t size)97 void TestInput(sptr<CameraInput> input, uint8_t *rawData, size_t size)
98 {
99 MEDIA_INFO_LOG("CameraInputFuzzer: ENTER");
100 MessageParcel data;
101 data.WriteRawData(rawData, size);
102 input->Open();
103 input->SetErrorCallback(make_shared<ErrorCallbackMock>());
104 input->SetResultCallback(make_shared<ResultCallbackMock>());
105 input->GetCameraId();
106 input->GetCameraDevice();
107 input->GetErrorCallback();
108 input->GetResultCallback();
109 shared_ptr<OHOS::Camera::CameraMetadata> result;
110 data.RewindRead(0);
111 input->ProcessCallbackUpdates(data.ReadUint64(), result);
112 input->GetCameraSettings();
113 data.RewindRead(0);
114 input->SetCameraSettings(data.ReadString());
115 data.RewindRead(0);
116 input->GetMetaSetting(data.ReadUint32());
117 std::vector<vendorTag_t> infos;
118 input->GetCameraAllVendorTags(infos);
119 input->Release();
120 input->Close();
121 uint64_t secureSeqId;
122 data.RewindRead(0);
123 input->Open(data.ReadBool(), &secureSeqId);
124 input->Release();
125 CameraDeviceServiceCallback callback;
126 auto meta = make_shared<OHOS::Camera::CameraMetadata>(10, 100);
127 callback.OnError(data.ReadInt32(), data.ReadInt32());
128 callback.OnResult(data.ReadUint64(), meta);
129 input->SetInputUsedAsPosition(CAMERA_POSITION_UNSPECIFIED);
130 class CameraOcclusionDetectCallbackMock : public CameraOcclusionDetectCallback {
131 public:
132 void OnCameraOcclusionDetected(const uint8_t isCameraOcclusion,
133 const uint8_t isCameraLensDirty) const override {}
134 };
135 input->SetOcclusionDetectCallback(make_shared<CameraOcclusionDetectCallbackMock>());
136 input->GetOcclusionDetectCallback();
137 input->UpdateSetting(meta);
138 input->MergeMetadata(meta, meta);
139 input->closeDelayed(data.ReadInt32());
140 input->CameraServerDied(g_pid);
141 }
142
143 } // namespace StreamRepeatStubFuzzer
144 } // namespace CameraStandard
145 } // namespace OHOS
146
147 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(uint8_t * data,size_t size)148 extern "C" int LLVMFuzzerTestOneInput(uint8_t *data, size_t size)
149 {
150 /* Run your code on data */
151 OHOS::CameraStandard::CameraInputFuzzer::Test(data, size);
152 return 0;
153 }