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