1 /*
2 * Copyright (c) 2022-2024 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 "distributed_input_transport_base_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20 #include <functional>
21 #include <iostream>
22 #include <thread>
23 #include <unistd.h>
24
25 #include <refbase.h>
26
27 #include "constants_dinput.h"
28 #include "distributed_input_transport_base.h"
29
30 namespace OHOS {
31 namespace DistributedHardware {
StartSessionFuzzTest(const uint8_t * data,size_t size)32 void StartSessionFuzzTest(const uint8_t *data, size_t size)
33 {
34 if ((data == nullptr) || (size == 0)) {
35 return;
36 }
37
38 std::string remoteDevId(reinterpret_cast<const char*>(data), size);
39
40 const uint32_t sleepTimeUs = 100 * 1000;
41 usleep(sleepTimeUs);
42 DistributedInput::DistributedInputTransportBase::GetInstance().StartSession(remoteDevId);
43 DistributedInput::DistributedInputTransportBase::GetInstance().StopSession(remoteDevId);
44 }
45
OnBytesReceivedFuzzTest(const uint8_t * data,size_t size)46 void OnBytesReceivedFuzzTest(const uint8_t *data, size_t size)
47 {
48 if ((data == nullptr) || (size < sizeof(int32_t))) {
49 return;
50 }
51
52 int32_t sessionId = *(reinterpret_cast<const int32_t*>(data));
53 const char *msg = reinterpret_cast<const char *>(data);
54 uint32_t dataLen = static_cast<const uint32_t>(size);
55 DistributedInput::DistributedInputTransportBase::GetInstance().OnBytesReceived(sessionId, msg, dataLen);
56 }
57 } // namespace DistributedHardware
58 } // namespace OHOS
59
60 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)61 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
62 {
63 /* Run your code on data */
64 OHOS::DistributedHardware::StartSessionFuzzTest(data, size);
65 OHOS::DistributedHardware::OnBytesReceivedFuzzTest(data, size);
66 return 0;
67 }