1 /*
2 * Copyright (c) 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 "keyeventconsumer_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #include "keyevent_consumer_service_impl.h"
22 #include "message_parcel.h"
23
24 using namespace OHOS::MiscServices;
25 namespace OHOS {
26 constexpr size_t THRESHOLD = 10;
27 constexpr int32_t OFFSET = 4;
28 const std::u16string AGENTSTUB_INTERFACE_TOKEN = u"OHOS.MiscServices.IKeyEventConsumer";
ConvertToUint32(const uint8_t * ptr)29 uint32_t ConvertToUint32(const uint8_t *ptr)
30 {
31 if (ptr == nullptr) {
32 return 0;
33 }
34 uint32_t bigVar = (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | (ptr[3]);
35 return bigVar;
36 }
37
FuzzKeyEventConsumerStub(const uint8_t * rawData,size_t size)38 bool FuzzKeyEventConsumerStub(const uint8_t *rawData, size_t size)
39 {
40 bool isConsumed = static_cast<bool>(rawData[0] % 2);
41 uint32_t code = ConvertToUint32(rawData);
42 rawData = rawData + OFFSET;
43 size = size - OFFSET;
44
45 MessageParcel data;
46 data.WriteInterfaceToken(AGENTSTUB_INTERFACE_TOKEN);
47 data.WriteBuffer(rawData, size);
48 data.RewindRead(0);
49 MessageParcel reply;
50 MessageOption option;
51
52 std::shared_ptr<MMI::KeyEvent> keyEvent = MMI::KeyEvent::Create();
53
54 sptr <KeyEventConsumerStub> stub = new KeyEventConsumerServiceImpl(
55 [](std::shared_ptr <MMI::KeyEvent> &keyEvent, bool isConsumed) {}, keyEvent);
56 stub->OnKeyEventResult(isConsumed);
57 stub->OnRemoteRequest(code, data, reply, option);
58
59 return true;
60 }
61 } // namespace OHOS
62 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)63 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
64 {
65 if (size < OHOS::THRESHOLD) {
66 return 0;
67 }
68 /* Run your code on data */
69 OHOS::FuzzKeyEventConsumerStub(data, size);
70 return 0;
71 }