1 /*
2 * Copyright (c) 2021 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 "ipc_camera_device_remote_fuzzer.h"
17 #include "fuzz_base.h"
18
19 #include <cstddef>
20 #include <cstdint>
21
22 class IPCCameraDeviceRemoteFuzzer : public CameraDeviceStub {
23 public:
GetStreamOperator(const OHOS::sptr<IStreamOperatorCallback> & callback,OHOS::sptr<IStreamOperator> & streamOperator)24 CamRetCode GetStreamOperator(const OHOS::sptr<IStreamOperatorCallback> &callback,
25 OHOS::sptr<IStreamOperator> &streamOperator) override
26 {
27 return OHOS::Camera::NO_ERROR;
28 }
UpdateSettings(const std::shared_ptr<CameraSetting> & settings)29 CamRetCode UpdateSettings(const std::shared_ptr<CameraSetting> &settings) override
30 {
31 return OHOS::Camera::NO_ERROR;
32 }
SetResultMode(const ResultCallbackMode & mode)33 CamRetCode SetResultMode(const ResultCallbackMode &mode) override
34 {
35 return OHOS::Camera::NO_ERROR;
36 }
GetEnabledResults(std::vector<MetaType> & results)37 CamRetCode GetEnabledResults(std::vector<MetaType> &results) override
38 {
39 return OHOS::Camera::NO_ERROR;
40 }
EnableResult(const std::vector<MetaType> & results)41 CamRetCode EnableResult(const std::vector<MetaType> &results) override
42 {
43 return OHOS::Camera::NO_ERROR;
44 }
DisableResult(const std::vector<MetaType> & results)45 CamRetCode DisableResult(const std::vector<MetaType> &results) override
46 {
47 return OHOS::Camera::NO_ERROR;
48 }
Close()49 void Close() override {}
50 };
51
U32_AT(const uint8_t * ptr)52 static uint32_t U32_AT(const uint8_t *ptr)
53 {
54 return (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | ptr[3];
55 }
56
onRemoteRequest(uint32_t code,MessageParcel & data)57 static int32_t onRemoteRequest(uint32_t code, MessageParcel &data)
58 {
59 MessageParcel reply;
60 MessageOption option;
61 IPCCameraDeviceRemoteFuzzer IPCDevice;
62
63 auto ret = IPCDevice.OnRemoteRequest(code, data, reply, option);
64 return ret;
65 }
66
IpcFuzzService(const uint8_t * data,size_t size)67 static void IpcFuzzService(const uint8_t *data, size_t size)
68 {
69 MessageParcel reply;
70 MessageOption option;
71 MessageParcel dataMessageParcel;
72 if (size > sizeof(uint32_t)) {
73 uint32_t code = U32_AT(data);
74 if (code == 1) { // 1:code size
75 return;
76 }
77 uint8_t *number = data;
78 number = number + sizeof(uint32_t);
79 size_t length = size;
80 length = length - sizeof(uint32_t);
81 dataMessageParcel.WriteInterfaceToken(CameraDeviceStub::GetDescriptor());
82 dataMessageParcel.WriteBuffer(number, length);
83 dataMessageParcel.RewindRead(0);
84 onRemoteRequest(code, dataMessageParcel);
85 }
86 }
87
OnRemoteRequestFunc(const uint8_t * data,size_t size)88 static void OnRemoteRequestFunc(const uint8_t *data, size_t size)
89 {
90 IpcFuzzService(data, size);
91 }
92
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)93 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
94 {
95 OnRemoteRequestFunc(data, size);
96 return 0;
97 }