1/*
2 * Copyright (c) 2022 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 "abilitymanagerservicetenth_fuzzer.h"
17
18#include <cstddef>
19#include <cstdint>
20
21#define private public
22#define protected public
23#include "ability_manager_service.h"
24#undef protected
25#undef private
26
27#include "ability_record.h"
28
29using namespace OHOS::AAFwk;
30using namespace OHOS::AppExecFwk;
31
32namespace OHOS {
33namespace {
34constexpr int INPUT_ZERO = 0;
35constexpr int INPUT_ONE = 1;
36constexpr int INPUT_THREE = 3;
37constexpr size_t FOO_MAX_LEN = 1024;
38constexpr size_t U32_AT_SIZE = 4;
39constexpr uint8_t ENABLE = 2;
40constexpr size_t OFFSET_ZERO = 24;
41constexpr size_t OFFSET_ONE = 16;
42constexpr size_t OFFSET_TWO = 8;
43}
44
45uint32_t GetU32Data(const char* ptr)
46{
47    // convert fuzz input data to an integer
48    return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[ENABLE] << OFFSET_TWO) |
49        ptr[INPUT_THREE];
50}
51
52sptr<Token> GetFuzzAbilityToken()
53{
54    sptr<Token> token = nullptr;
55    AbilityRequest abilityRequest;
56    abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
57    abilityRequest.abilityInfo.name = "MainAbility";
58    abilityRequest.abilityInfo.type = AbilityType::DATA;
59    std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
60    if (abilityRecord) {
61        token = abilityRecord->GetToken();
62    }
63    return token;
64}
65
66bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
67{
68    bool boolParam = *data % ENABLE;
69    int32_t int32Param = static_cast<int32_t>(GetU32Data(data));
70    std::string stringParam(data, size);
71    sptr<IRemoteObject> token = GetFuzzAbilityToken();
72
73    // fuzz for AbilityManagerService
74    auto abilityms = std::make_shared<AbilityManagerService>();
75    abilityms->ClearUserData(int32Param);
76    sptr<ISnapshotHandler> snapshotHandler;
77    abilityms->RegisterSnapshotHandler(snapshotHandler);
78    MissionSnapshot missionSnapshot;
79    abilityms->GetMissionSnapshot(stringParam, int32Param, missionSnapshot, boolParam);
80    abilityms->EnableRecoverAbility(token);
81
82    return true;
83}
84}
85
86/* Fuzzer entry point */
87extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
88{
89    /* Run your code on data */
90    if (data == nullptr) {
91        return 0;
92    }
93
94    /* Validate the length of size */
95    if (size < OHOS::U32_AT_SIZE || size > OHOS::FOO_MAX_LEN) {
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, 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