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 "systemcmdchannelstub_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #include "fuzzer/FuzzedDataProvider.h"
22 #include "message_parcel.h"
23 #include "system_cmd_channel_service_impl.h"
24
25 using namespace OHOS::MiscServices;
26 namespace OHOS {
27 constexpr size_t THRESHOLD = 10;
28 constexpr int32_t OFFSET = 4;
29 const std::u16string AGENTSTUB_INTERFACE_TOKEN = u"OHOS.MiscServices.ISystemCmdChannel";
ConvertToUint32(const uint8_t * ptr)30 uint32_t ConvertToUint32(const uint8_t *ptr)
31 {
32 if (ptr == nullptr) {
33 return 0;
34 }
35 uint32_t bigVar = (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | (ptr[3]);
36 return bigVar;
37 }
FuzzSystemCmdChannelStub(const uint8_t * rawData,size_t size)38 bool FuzzSystemCmdChannelStub(const uint8_t *rawData, size_t size)
39 {
40 FuzzedDataProvider provider(rawData, size);
41 InputType inputType = static_cast<InputType>(provider.ConsumeIntegral<int32_t>());
42 auto fuzzedUint32 = provider.ConsumeIntegral<uint32_t>();
43
44 uint32_t code = ConvertToUint32(rawData);
45 rawData = rawData + OFFSET;
46 size = size - OFFSET;
47
48 SysPanelStatus sysPanelStatus = {inputType, 0, fuzzedUint32, fuzzedUint32};
49 MessageParcel data;
50 data.WriteInterfaceToken(AGENTSTUB_INTERFACE_TOKEN);
51 data.WriteBuffer(rawData, size);
52 data.RewindRead(0);
53 MessageParcel reply;
54 MessageOption option;
55
56 sptr <SystemCmdChannelStub> stub = new SystemCmdChannelServiceImpl();
57 stub->NotifyPanelStatus(sysPanelStatus);
58 stub->OnRemoteRequest(code, data, reply, option);
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::FuzzSystemCmdChannelStub(data, size);
70 return 0;
71 }