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_callback_fuzzer.h"
17 #include "fuzz_base.h"
18
19 #include <cstddef>
20 #include <cstdint>
21
22 class IPCCameraDeviceCallbackFuzzer : public CameraDeviceCallbackStub {
23 public:
OnError(ErrorType type,int32_t errorCode)24 void OnError(ErrorType type, int32_t errorCode) override {}
OnResult(uint64_t timestamp,const std::shared_ptr<CameraMetadata> & result)25 void OnResult(uint64_t timestamp, const std::shared_ptr<CameraMetadata> &result) override {}
26 };
27
U32_AT(const uint8_t * ptr)28 static uint32_t U32_AT(const uint8_t *ptr)
29 {
30 return (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | ptr[3];
31 }
32
onRemoteRequest(uint32_t code,MessageParcel & data)33 static int32_t onRemoteRequest(uint32_t code, MessageParcel &data)
34 {
35 MessageParcel reply;
36 MessageOption option;
37 IPCCameraDeviceCallbackFuzzer IPCDeviceCallback;
38
39 auto ret = IPCDeviceCallback.OnRemoteRequest(code, data, reply, option);
40 return ret;
41 }
42
IpcFuzzService(const uint8_t * data,size_t size)43 static void IpcFuzzService(const uint8_t *data, size_t size)
44 {
45 MessageParcel reply;
46 MessageOption option;
47 MessageParcel dataMessageParcel;
48 if (size > sizeof(uint32_t)) {
49 uint32_t code = U32_AT(data);
50 if (code == 1) { // 1:code size
51 return;
52 }
53 uint8_t *number = data;
54 number = number + sizeof(uint32_t);
55 size_t length = size;
56 length = length - sizeof(uint32_t);
57 dataMessageParcel.WriteInterfaceToken(CameraDeviceCallbackStub::GetDescriptor());
58 dataMessageParcel.WriteBuffer(number, length);
59 dataMessageParcel.RewindRead(0);
60 onRemoteRequest(code, dataMessageParcel);
61 }
62 }
63
OnRemoteRequestFunc(const uint8_t * data,size_t size)64 static void OnRemoteRequestFunc(const uint8_t *data, size_t size)
65 {
66 IpcFuzzService(data, size);
67 }
68
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)69 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
70 {
71 OnRemoteRequestFunc(data, size);
72 return 0;
73 }