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 "abilitymgrabilitymanagerstub_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #include "ability_manager_service.h"
23 #undef private
24
25 #include "securec.h"
26 #include "ability_record.h"
27
28 using namespace OHOS::AAFwk;
29 using namespace OHOS::AppExecFwk;
30
31 namespace OHOS {
32 namespace {
33 constexpr int INPUT_ZERO = 0;
34 constexpr int INPUT_ONE = 1;
35 constexpr int INPUT_TWO = 2;
36 constexpr int INPUT_THREE = 3;
37 constexpr size_t FOO_MAX_LEN = 1024;
38 constexpr size_t U32_AT_SIZE = 4;
39 constexpr size_t OFFSET_ZERO = 24;
40 constexpr size_t OFFSET_ONE = 16;
41 constexpr size_t OFFSET_TWO = 8;
42 constexpr uint8_t ENABLE = 2;
43 }
44 const std::u16string ABILITYMGR_INTERFACE_TOKEN = u"ohos.aafwk.AbilityManager";
GetU32Data(const char * ptr)45 uint32_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
GetFuzzAbilityToken()52 sptr<Token> GetFuzzAbilityToken()
53 {
54 sptr<Token> token = nullptr;
55 AbilityRequest abilityRequest;
56 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
57 abilityRequest.abilityInfo.name = "MainAbility";
58 abilityRequest.abilityInfo.type = AbilityType::DATA;
59 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
60 if (abilityRecord) {
61 token = abilityRecord->GetToken();
62 }
63 return token;
64 }
65
DoSomethingInterestingWithMyAPI(const char * data,size_t size)66 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
67 {
68 uint32_t codeOne = static_cast<uint32_t>(AbilityManagerInterfaceCode::GET_PENDING_WANT_TYPE);
69 MessageParcel parcel;
70 parcel.WriteInterfaceToken(ABILITYMGR_INTERFACE_TOKEN);
71 parcel.WriteBuffer(data, size);
72 parcel.RewindRead(0);
73 MessageParcel reply;
74 MessageOption option;
75 std::shared_ptr<AbilityManagerService> abmsOne = std::make_shared<AbilityManagerService>();
76 abmsOne->OnRemoteRequest(codeOne, parcel, reply, option);
77
78 uint32_t codeTwo = static_cast<uint32_t>(AbilityManagerInterfaceCode::START_UI_EXTENSION_ABILITY);
79 MessageParcel parcels;
80 parcels.WriteInterfaceToken(ABILITYMGR_INTERFACE_TOKEN);
81 parcels.WriteBuffer(data, size);
82 parcels.RewindRead(0);
83 std::shared_ptr<AbilityManagerService> abmsTwo = std::make_shared<AbilityManagerService>();
84 abmsTwo->OnRemoteRequest(codeTwo, parcels, reply, option);
85 return true;
86 }
87 }
88
89 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)90 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
91 {
92 /* Run your code on data */
93 if (data == nullptr) {
94 std::cout << "invalid data" << std::endl;
95 return 0;
96 }
97
98 /* Validate the length of size */
99 if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
100 return 0;
101 }
102
103 char* ch = static_cast<char*>(malloc(size + 1));
104 if (ch == nullptr) {
105 std::cout << "malloc failed." << std::endl;
106 return 0;
107 }
108
109 (void)memset_s(ch, size + 1, 0x00, size + 1);
110 if (memcpy_s(ch, size + 1, data, size) != EOK) {
111 std::cout << "copy failed." << std::endl;
112 free(ch);
113 ch = nullptr;
114 return 0;
115 }
116
117 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
118 free(ch);
119 ch = nullptr;
120 return 0;
121 }
122
123