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 "system_cmd_channel_stub.h"
22#include "message_parcel.h"
23
24using namespace OHOS::MiscServices;
25namespace OHOS {
26constexpr size_t THRESHOLD = 10;
27constexpr int32_t OFFSET = 4;
28constexpr int32_t PRIVATEDATAVALUE = 100;
29const std::u16string AGENTSTUB_INTERFACE_TOKEN = u"ohos.miscservices.inputmethod.ISystemCmdChannel";
30uint32_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}
38bool FuzzSystemCmdChannelStub(const uint8_t *rawData, size_t size)
39{
40    InputType fuzzedBool = static_cast<InputType>(rawData[0] % 2);
41    auto fuzzedUint32 = static_cast<uint32_t>(size);
42
43    uint32_t code = ConvertToUint32(rawData);
44    rawData = rawData + OFFSET;
45    size = size - OFFSET;
46
47    SysPanelStatus sysPanelStatus = {fuzzedBool, 0, fuzzedUint32, fuzzedUint32};
48
49    std::unordered_map <std::string, PrivateDataValue> privateCommand;
50    PrivateDataValue privateDataValue1 = std::string("stringValue");
51    PrivateDataValue privateDataValue2 = static_cast<int32_t>(fuzzedBool);
52    PrivateDataValue privateDataValue3 = PRIVATEDATAVALUE;
53    privateCommand.emplace("value1", privateDataValue1);
54    privateCommand.emplace("value2", privateDataValue2);
55    privateCommand.emplace("value3", privateDataValue3);
56
57    MessageParcel data;
58    data.WriteInterfaceToken(AGENTSTUB_INTERFACE_TOKEN);
59    data.WriteBuffer(rawData, size);
60    data.RewindRead(0);
61    MessageParcel reply;
62    MessageOption option;
63
64    sptr <SystemCmdChannelStub> stub = new SystemCmdChannelStub();
65    stub->SendPrivateCommand(privateCommand);
66    stub->NotifyPanelStatus(sysPanelStatus);
67    stub->OnRemoteRequest(code, data, reply, option);
68    return true;
69}
70} // namespace OHOS
71/* Fuzzer entry point */
72extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
73{
74    if (size < OHOS::THRESHOLD) {
75        return 0;
76    }
77    /* Run your code on data */
78    OHOS::FuzzSystemCmdChannelStub(data, size);
79    return 0;
80}