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 "usbmgrserialread_fuzzer.h"
17
18 #include <memory>
19 #include "usb_srv_client.h"
20 #include "v1_0/serial_types.h"
21
22 namespace {
23 constexpr int32_t OK = 0;
24 constexpr int32_t MAX_MEMORY = 8192;
25 }
26 using OHOS::USB::UsbSrvClient;
27 namespace OHOS {
28 namespace SERIAL {
29
UsbMgrSerialReadFuzzTest(const uint8_t * data,size_t size)30 bool UsbMgrSerialReadFuzzTest(const uint8_t* data, size_t size)
31 {
32 if (data == nullptr || size < sizeof(int32_t) + sizeof(uint32_t) + sizeof(size_t)) {
33 return false;
34 }
35 auto &usbSrvClient = UsbSrvClient::GetInstance();
36 const int32_t portId = *reinterpret_cast<const int32_t *>(data);
37 const uint32_t timeout = *reinterpret_cast<const uint32_t *>(data + sizeof(int32_t));
38 const uint32_t readSize = *reinterpret_cast<const size_t *>(data + sizeof(int32_t) + sizeof(uint32_t));
39 std::vector<uint8_t> bufferData;
40 uint32_t actualLen = 0;
41 if (usbSrvClient.SerialRead(portId, bufferData, readSize, actualLen, timeout) != OK) {
42 return false;
43 }
44 return true;
45 }
46 } // SERIAL
47 } // OHOS
48
49 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)50 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
51 {
52 /* Run your code on data */
53 OHOS::SERIAL::UsbMgrSerialReadFuzzTest(data, size);
54 return 0;
55 }
56
57