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 "abilityinterfacesappmgrchildschedulerproxy_fuzzer.h"
17
18#include <cstddef>
19#include <cstdint>
20
21#define private public
22#include "child_scheduler_proxy.h"
23#include "child_scheduler_interface.h"
24#undef private
25
26#include "securec.h"
27#include "parcel.h"
28#include "ability_record.h"
29
30using namespace OHOS::AAFwk;
31using namespace OHOS::AppExecFwk;
32
33namespace OHOS {
34namespace {
35constexpr int INPUT_ZERO = 0;
36constexpr int INPUT_ONE = 1;
37constexpr int INPUT_TWO = 2;
38constexpr int INPUT_THREE = 3;
39constexpr size_t FOO_MAX_LEN = 1024;
40constexpr size_t U32_AT_SIZE = 4;
41constexpr size_t OFFSET_ZERO = 24;
42constexpr size_t OFFSET_ONE = 16;
43constexpr size_t OFFSET_TWO = 8;
44constexpr uint8_t ENABLE = 2;
45}
46const std::u16string AMSMGR_INTERFACE_TOKEN = u"ohos.appexecfwk.IAmsMgr";
47uint32_t GetU32Data(const char* ptr)
48{
49    // convert fuzz input data to an integer
50    return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[INPUT_TWO] << OFFSET_TWO) |
51        ptr[INPUT_THREE];
52}
53
54sptr<Token> GetFuzzAbilityToken()
55{
56    sptr<Token> token = nullptr;
57    AbilityRequest abilityRequest;
58    abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
59    abilityRequest.abilityInfo.name = "MainAbility";
60    abilityRequest.abilityInfo.type = AbilityType::DATA;
61    std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
62    if (abilityRecord) {
63        token = abilityRecord->GetToken();
64    }
65    return token;
66}
67
68bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
69{
70    sptr<IRemoteObject> impl;
71    std::shared_ptr<ChildSchedulerProxy> infosProxy = std::make_shared<ChildSchedulerProxy>(impl);
72    infosProxy->ScheduleLoadChild();
73    infosProxy->ScheduleExitProcessSafely();
74    sptr<IRemoteObject> mainProcessCb;
75    infosProxy->ScheduleRunNativeProc(mainProcessCb);
76    MessageParcel parcels;
77    parcels.WriteInterfaceToken(AMSMGR_INTERFACE_TOKEN);
78    parcels.WriteBuffer(data, size);
79    parcels.RewindRead(0);
80    infosProxy->WriteInterfaceToken(parcels);
81    return true;
82}
83}
84
85/* Fuzzer entry point */
86extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
87{
88    /* Run your code on data */
89    if (data == nullptr) {
90        std::cout << "invalid data" << std::endl;
91        return 0;
92    }
93
94    /* Validate the length of size */
95    if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
96        return 0;
97    }
98
99    char* ch = (char*)malloc(size + 1);
100    if (ch == nullptr) {
101        std::cout << "malloc failed." << std::endl;
102        return 0;
103    }
104
105    (void)memset_s(ch, size + 1, 0x00, size + 1);
106    if (memcpy_s(ch, size + 1, data, size) != EOK) {
107        std::cout << "copy failed." << std::endl;
108        free(ch);
109        ch = nullptr;
110        return 0;
111    }
112
113    OHOS::DoSomethingInterestingWithMyAPI(ch, size);
114    free(ch);
115    ch = nullptr;
116    return 0;
117}
118
119