1 /*
2 * Copyright (c) 2025 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 "usbmgrserialwrite_fuzzer.h"
17
18 #include "usb_srv_client.h"
19 #include "v1_0/serial_types.h"
20
21 namespace {
22 constexpr int32_t OK = 0;
23 }
24 using OHOS::USB::UsbSrvClient;
25 namespace OHOS {
26 namespace SERIAL {
UsbMgrSerialWriteFuzzTest(const uint8_t * data,size_t size)27 bool UsbMgrSerialWriteFuzzTest(const uint8_t* data, size_t size)
28 {
29 if (data == nullptr || size < sizeof(int32_t) + sizeof(uint32_t)) {
30 return false;
31 }
32 auto &usbSrvClient = UsbSrvClient::GetInstance();
33 const int32_t portId = *reinterpret_cast<const int32_t *>(data);
34 const uint32_t timeout = *reinterpret_cast<const uint32_t *>(data + sizeof(int32_t));
35 std::vector<uint8_t> buffer(data, data + size);
36 uint32_t actualLen = 0;
37 if (usbSrvClient.SerialWrite(portId, buffer, size, actualLen, timeout) != OK) {
38 return false;
39 }
40
41 return true;
42 }
43 } // SERIAL
44 } // OHOS
45
46 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)47 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
48 {
49 /* Run your code on data */
50 OHOS::SERIAL::UsbMgrSerialWriteFuzzTest(data, size);
51 return 0;
52 }
53
54