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 "scheduleconnectabilitydone_fuzzer.h"
17
18#include <cstddef>
19#include <cstdint>
20
21#include "ability_manager_client.h"
22#include "ability_record.h"
23#include "ability_connect_manager.h"
24
25using namespace OHOS::AAFwk;
26using namespace OHOS::AppExecFwk;
27
28namespace OHOS {
29namespace {
30constexpr size_t FOO_MAX_LEN = 1024;
31constexpr size_t U32_AT_SIZE = 4;
32constexpr int32_t UID_TEST = 100;
33constexpr int OFFSET_ZERO = 24;
34}
35sptr<Token> GetFuzzAbilityToken(AbilityType type)
36{
37    sptr<Token> token = nullptr;
38
39    AbilityRequest abilityRequest;
40    abilityRequest.uid = UID_TEST;
41    abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
42    abilityRequest.abilityInfo.name = "MainAbility";
43    abilityRequest.abilityInfo.type = type;
44    std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
45    if (abilityRecord) {
46        token = abilityRecord->GetToken();
47    }
48
49    return token;
50}
51uint32_t GetU32Data(const char* ptr)
52{
53    // convert fuzz input data to an integer
54    return (ptr[0] << OFFSET_ZERO) | (ptr[1] << 16) | (ptr[2] << 8) | ptr[3];
55}
56bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
57{
58    auto abilitymgr = AbilityManagerClient::GetInstance();
59    int userId = static_cast<int>(GetU32Data(data));
60    std::shared_ptr<AbilityConnectManager> connectManager = std::make_shared<AbilityConnectManager>(userId);
61    if (!connectManager) {
62        return false;
63    }
64    sptr<IRemoteObject> remoteObject;
65    if (!abilitymgr) {
66        return false;
67    }
68
69    // get token
70    sptr<IRemoteObject> token = GetFuzzAbilityToken(AbilityType::PAGE);
71    if (!token) {
72        std::cout << "Get ability token failed." << std::endl;
73        return false;
74    }
75
76    // get serviceToken
77    sptr<IRemoteObject> serviceToken = GetFuzzAbilityToken(AbilityType::SERVICE);
78    if (!serviceToken) {
79        std::cout << "Get service ability token failed." << std::endl;
80        return false;
81    }
82
83    if (connectManager) {
84        connectManager->ScheduleConnectAbilityDoneLocked(serviceToken, remoteObject);
85    }
86
87    if (abilitymgr->ScheduleConnectAbilityDone(token, remoteObject) != 0) {
88        return false;
89    }
90
91    return true;
92}
93}
94
95/* Fuzzer entry point */
96extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
97{
98    /* Run your code on data */
99    if (data == nullptr) {
100        std::cout << "invalid data" << std::endl;
101        return 0;
102    }
103
104    /* Validate the length of size */
105    if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
106        return 0;
107    }
108
109    char* ch = (char*)malloc(size + 1);
110    if (ch == nullptr) {
111        std::cout << "malloc failed." << std::endl;
112        return 0;
113    }
114
115    (void)memset_s(ch, size + 1, 0x00, size + 1);
116    if (memcpy_s(ch, size, data, size) != EOK) {
117        std::cout << "copy failed." << std::endl;
118        free(ch);
119        ch = nullptr;
120        return 0;
121    }
122
123    OHOS::DoSomethingInterestingWithMyAPI(ch, size);
124    free(ch);
125    ch = nullptr;
126    return 0;
127}
128
129