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_host_callback_fuzzer.h"
17 #include "fuzz_base.h"
18
19 #include <cstddef>
20 #include <cstdint>
21
22 class IPCCameraHostCallbackFuzzer : public CameraHostCallbackStub {
23 public:
OnCameraStatus(const std::string & cameraId,CameraStatus status)24 void OnCameraStatus(const std::string &cameraId, CameraStatus status) override {}
OnFlashlightStatus(const std::string & cameraId,FlashlightStatus status)25 void OnFlashlightStatus(const std::string &cameraId, FlashlightStatus status) 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 std::shared_ptr<IPCCameraHostCallbackFuzzer> IPCHostCall = std::make_shared<IPCCameraHostCallbackFuzzer>();
38 auto ret = IPCHostCall->OnRemoteRequest(code, data, reply, option);
39 return ret;
40 }
41
IpcFuzzService(const uint8_t * data,size_t size)42 static void IpcFuzzService(const uint8_t *data, size_t size)
43 {
44 MessageParcel reply;
45 MessageOption option;
46 MessageParcel dataMessageParcel;
47 if (size > sizeof(uint32_t)) {
48 uint32_t code = U32_AT(data);
49 uint8_t *number = data;
50 number = number + sizeof(uint32_t);
51 size_t length = size;
52 length = length - sizeof(uint32_t);
53 dataMessageParcel.WriteInterfaceToken(CameraHostCallbackStub::GetDescriptor());
54 dataMessageParcel.WriteBuffer(number, length);
55 dataMessageParcel.RewindRead(0);
56 onRemoteRequest(code, dataMessageParcel);
57 }
58 }
59
OnRemoteRequestFunc(const uint8_t * data,size_t size)60 static void OnRemoteRequestFunc(const uint8_t *data, size_t size)
61 {
62 IpcFuzzService(data, size);
63 }
64
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)65 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
66 {
67 OnRemoteRequestFunc(data, size);
68 return 0;
69 }