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 "abilitymanagerserviceh_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_TWO = 2;
37constexpr int INPUT_THREE = 3;
38constexpr size_t FOO_MAX_LEN = 1024;
39constexpr size_t U32_AT_SIZE = 4;
40constexpr int OFFSET_ZERO = 24;
41constexpr int OFFSET_ONE = 16;
42constexpr int 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[INPUT_TWO] << OFFSET_TWO) |
49        ptr[INPUT_THREE];
50}
51
52std::shared_ptr<AbilityRecord> GetFuzzAbilityRecord()
53{
54    AbilityRequest abilityRequest;
55    abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
56    abilityRequest.abilityInfo.name = "MainAbility";
57    abilityRequest.abilityInfo.type = AbilityType::DATA;
58    std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
59    return abilityRecord;
60}
61
62bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
63{
64    int32_t int32Param = static_cast<int32_t>(GetU32Data(data));
65    std::string stringParam(data, size);
66
67    // fuzz for AbilityManagerService
68    auto abilityms = std::make_shared<AbilityManagerService>();
69    std::vector<AppExecFwk::AbilityInfo> abilityInfos;
70    abilityms->GetDataAbilityUri(abilityInfos, stringParam, stringParam);
71    std::vector<AbilityRunningInfo> abilityRunningInfo;
72    std::shared_ptr<AbilityRecord> abilityRecord = GetFuzzAbilityRecord();
73    abilityms->GetAbilityRunningInfo(abilityRunningInfo, abilityRecord);
74    abilityms->VerifyAccountPermission(int32Param);
75
76    return true;
77}
78}
79
80/* Fuzzer entry point */
81extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
82{
83    /* Run your code on data */
84    if (data == nullptr) {
85        return 0;
86    }
87
88    /* Validate the length of size */
89    if (size < OHOS::U32_AT_SIZE || size > OHOS::FOO_MAX_LEN) {
90        return 0;
91    }
92
93    char* ch = (char*)malloc(size + 1);
94    if (ch == nullptr) {
95        std::cout << "malloc failed." << std::endl;
96        return 0;
97    }
98
99    (void)memset_s(ch, size + 1, 0x00, size + 1);
100    if (memcpy_s(ch, size, data, size) != EOK) {
101        std::cout << "copy failed." << std::endl;
102        free(ch);
103        ch = nullptr;
104        return 0;
105    }
106
107    OHOS::DoSomethingInterestingWithMyAPI(ch, size);
108    free(ch);
109    ch = nullptr;
110    return 0;
111}
112
113