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 "abilitydebugresponseproxy_fuzzer.h"
17
18#include <cstddef>
19#include <cstdint>
20
21#define private public
22#define protected public
23#include "ability_debug_response_proxy.h"
24#undef protected
25#undef private
26
27#include "ability_record.h"
28
29using namespace OHOS::AAFwk;
30using namespace OHOS::AppExecFwk;
31using namespace OHOS::AbilityRuntime;
32
33namespace OHOS {
34namespace {
35constexpr int INPUT_ZERO = 0;
36constexpr int INPUT_ONE = 1;
37constexpr int INPUT_THREE = 3;
38constexpr size_t FOO_MAX_LEN = 1024;
39constexpr size_t U32_AT_SIZE = 4;
40constexpr uint8_t ENABLE = 2;
41constexpr size_t OFFSET_ZERO = 24;
42constexpr size_t OFFSET_ONE = 16;
43constexpr size_t OFFSET_TWO = 8;
44}
45
46uint32_t GetU32Data(const char* ptr)
47{
48    // convert fuzz input data to an integer
49    return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[ENABLE] << OFFSET_TWO) |
50        ptr[INPUT_THREE];
51}
52
53sptr<Token> GetFuzzAbilityToken()
54{
55    sptr<Token> token = nullptr;
56    AbilityRequest abilityRequest;
57    abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
58    abilityRequest.abilityInfo.name = "MainAbility";
59    abilityRequest.abilityInfo.type = AbilityType::DATA;
60    std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
61    if (abilityRecord) {
62        token = abilityRecord->GetToken();
63    }
64    return token;
65}
66
67void AbilityDebugResponseProxyFuzztest1(bool boolParam, std::string &stringParam, int32_t int32Param)
68{
69    std::shared_ptr<AbilityDebugResponseProxy> proxy =
70        std::make_shared<AbilityDebugResponseProxy>(nullptr); // branch constructor
71    MessageParcel data;
72    proxy->WriteInterfaceToken(data); // branch
73    std::vector<sptr<IRemoteObject>> tokens;
74    proxy->OnAbilitysDebugStarted(tokens); // branch
75    proxy->OnAbilitysDebugStoped(tokens); // branch
76    proxy->OnAbilitysAssertDebugChange(tokens, boolParam); // branch
77    sptr<Token> token = GetFuzzAbilityToken();
78    tokens.emplace_back(token);
79    proxy->SendRequest(static_cast<IAbilityDebugResponse::Message>(int32Param), tokens); // branch tokens no empty.
80    tokens.clear();
81    proxy->SendRequest(static_cast<IAbilityDebugResponse::Message>(int32Param), tokens); // branch tokens empty.
82}
83
84bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
85{
86    bool boolParam = *data % ENABLE;
87    std::string stringParam(data, size);
88    int32_t int32Param = static_cast<int32_t>(GetU32Data(data));
89    AbilityDebugResponseProxyFuzztest1(boolParam, stringParam, int32Param);
90    return true;
91}
92}
93
94/* Fuzzer entry point */
95extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
96{
97    /* Run your code on data */
98    if (data == nullptr) {
99        return 0;
100    }
101
102    /* Validate the length of size */
103    if (size < OHOS::U32_AT_SIZE || size > OHOS::FOO_MAX_LEN) {
104        return 0;
105    }
106
107    char* ch = (char*)malloc(size + 1);
108    if (ch == nullptr) {
109        std::cout << "malloc failed." << std::endl;
110        return 0;
111    }
112
113    (void)memset_s(ch, size + 1, 0x00, size + 1);
114    if (memcpy_s(ch, size, data, size) != EOK) {
115        std::cout << "copy failed." << std::endl;
116        free(ch);
117        ch = nullptr;
118        return 0;
119    }
120
121    OHOS::DoSomethingInterestingWithMyAPI(ch, size);
122    free(ch);
123    ch = nullptr;
124    return 0;
125}
126
127