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 "abilitydebugdeal_fuzzer.h"
17
18#include <cstddef>
19#include <cstdint>
20
21#define private public
22#include "ability_debug_deal.h"
23#undef private
24#include "ability_record.h"
25#include "ability_debug_response_stub.h"
26#include "securec.h"
27
28using namespace OHOS::AAFwk;
29using namespace OHOS::AppExecFwk;
30
31namespace OHOS {
32namespace {
33constexpr int INPUT_ZERO = 0;
34constexpr int INPUT_ONE = 1;
35constexpr int INPUT_THREE = 3;
36constexpr size_t FOO_MAX_LEN = 1024;
37constexpr uint8_t ENABLE = 2;
38constexpr size_t U32_AT_SIZE = 4;
39constexpr size_t OFFSET_ZERO = 24;
40constexpr size_t OFFSET_ONE = 16;
41constexpr size_t OFFSET_TWO = 8;
42}
43
44uint32_t GetU32Data(const char* ptr)
45{
46    // convert fuzz input data to an integer
47    return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[ENABLE] << OFFSET_TWO) |
48        ptr[INPUT_THREE];
49}
50
51std::shared_ptr<AbilityRecord> GetFuzzAbilityRecord()
52{
53    sptr<Token> token = nullptr;
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    if (!abilityRecord) {
60        return nullptr;
61    }
62    return abilityRecord;
63}
64
65sptr<Token> GetFuzzAbilityToken()
66{
67    sptr<Token> token = nullptr;
68    std::shared_ptr<AbilityRecord> abilityRecord = GetFuzzAbilityRecord();
69    if (abilityRecord) {
70        token = abilityRecord->GetToken();
71    }
72    return token;
73}
74
75bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
76{
77    bool boolParam = *data % ENABLE;
78    sptr<IRemoteObject> token = GetFuzzAbilityToken();
79    std::vector<sptr<IRemoteObject>> tokens;
80    std::weak_ptr<AbilityDebugDeal> deal;
81    auto abilityDebugDeal = std::make_shared<AbilityDebugDeal>();
82    abilityDebugDeal->OnAbilitysDebugStarted(tokens);
83    abilityDebugDeal->OnAbilitysDebugStoped(tokens);
84    abilityDebugDeal->OnAbilitysAssertDebugChange(tokens, boolParam);
85    abilityDebugDeal->RegisterAbilityDebugResponse();
86
87    auto abilityDebugResponse = std::make_shared<AbilityDebugResponse>(deal);
88    abilityDebugResponse->OnAbilitysDebugStarted(tokens);
89    abilityDebugResponse->OnAbilitysDebugStoped(tokens);
90    abilityDebugResponse->OnAbilitysAssertDebugChange(tokens, boolParam);
91
92    return true;
93}
94}
95
96/* Fuzzer entry point */
97extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
98{
99    /* Run your code on data */
100    if (data == nullptr) {
101        std::cout << "invalid data" << std::endl;
102        return 0;
103    }
104
105    /* Validate the length of size */
106    if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
107        return 0;
108    }
109
110    char* ch = (char*)malloc(size + 1);
111    if (ch == nullptr) {
112        std::cout << "malloc failed." << std::endl;
113        return 0;
114    }
115
116    (void)memset_s(ch, size + 1, 0x00, size + 1);
117    if (memcpy_s(ch, size + 1, data, size) != EOK) {
118        std::cout << "copy failed." << std::endl;
119        free(ch);
120        ch = nullptr;
121        return 0;
122    }
123
124    OHOS::DoSomethingInterestingWithMyAPI(ch, size);
125    free(ch);
126    ch = nullptr;
127    return 0;
128}
129
130