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 <cstddef>
17 #include <cstdint>
18 #include <parcel.h>
19 #include <securec.h>
20
21 #include <iremote_stub.h>
22 #include "message_option.h"
23 #include "message_parcel.h"
24 #include "marshalling_helper.h"
25 #include "display_manager_interface.h"
26 #include "screen_session_manager_stub.h"
27 #include "screensessionmgrstubstate_fuzzer.h"
28
29 using namespace OHOS::Rosen;
30
31 namespace OHOS {
32 namespace {
33 constexpr size_t DATA_MIN_SIZE = 2;
34 }
35
DoSomethingInterestingWithMyAPI(const uint8_t * data,size_t size)36 bool DoSomethingInterestingWithMyAPI(const uint8_t* data, size_t size)
37 {
38 if (data == nullptr || size < DATA_MIN_SIZE) {
39 return false;
40 }
41
42 MessageParcel parcel;
43 MessageParcel reply;
44 MessageOption option;
45
46 parcel.WriteInterfaceToken(ScreenSessionManagerStub::GetDescriptor());
47 parcel.WriteBuffer(data, size);
48 parcel.RewindRead(0);
49
50 std::shared_ptr<ScreenSessionManagerStub> screenStub = std::make_shared<ScreenSessionManagerStub>();
51 screenStub->OnRemoteRequest(
52 static_cast<uint32_t>(DisplayManagerMessage::TRANS_ID_SET_DISPLAY_STATE),
53 parcel, reply, option);
54 return true;
55 }
56 } // namespace.OHOS
57
58 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)59 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
60 {
61 /* Run your code on data */
62 OHOS::DoSomethingInterestingWithMyAPI(data, size);
63 return 0;
64 }