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 "abilitymanagerservicefourth_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 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[INPUT_TWO] << OFFSET_TWO) |
49        ptr[INPUT_THREE];
50}
51
52bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
53{
54    int intParam = static_cast<int>(GetU32Data(data));
55    std::string stringParam(data, size);
56    Parcel wantParcel;
57    Want* want = nullptr;
58    if (wantParcel.WriteBuffer(data, size)) {
59        want = Want::Unmarshalling(wantParcel);
60        if (!want) {
61            return false;
62        }
63    }
64
65    // fuzz for AbilityManagerService
66    auto abilityms = std::make_shared<AbilityManagerService>();
67    AppExecFwk::AbilityInfo abilityInfo;
68    abilityms->JudgeAbilityVisibleControl(abilityInfo);
69    sptr<IUserCallback> callback;
70    abilityms->StartUser(intParam, callback);
71    abilityms->StopUser(intParam, callback);
72    abilityms->OnAcceptWantResponse(*want, stringParam);
73    abilityms->OnStartSpecifiedAbilityTimeoutResponse(*want);
74    if (want) {
75        delete want;
76        want = nullptr;
77    }
78    return true;
79}
80}
81
82/* Fuzzer entry point */
83extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
84{
85    /* Run your code on data */
86    if (data == nullptr) {
87        return 0;
88    }
89
90    /* Validate the length of size */
91    if (size < OHOS::U32_AT_SIZE || size > OHOS::FOO_MAX_LEN) {
92        return 0;
93    }
94
95    char* ch = (char*)malloc(size + 1);
96    if (ch == nullptr) {
97        std::cout << "malloc failed." << std::endl;
98        return 0;
99    }
100
101    (void)memset_s(ch, size + 1, 0x00, size + 1);
102    if (memcpy_s(ch, size, data, size) != EOK) {
103        std::cout << "copy failed." << std::endl;
104        free(ch);
105        ch = nullptr;
106        return 0;
107    }
108
109    OHOS::DoSomethingInterestingWithMyAPI(ch, size);
110    free(ch);
111    ch = nullptr;
112    return 0;
113}
114
115