1 /*
2 * Copyright (c) 2022 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 "abilitymanagerserviced_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #define protected public
23 #include "ability_manager_service.h"
24 #undef protected
25 #undef private
26
27 #include "ability_record.h"
28
29 using namespace OHOS::AAFwk;
30 using namespace OHOS::AppExecFwk;
31
32 namespace OHOS {
33 namespace {
34 constexpr int INPUT_ZERO = 0;
35 constexpr int INPUT_ONE = 1;
36 constexpr int INPUT_TWO = 2;
37 constexpr int INPUT_THREE = 3;
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 }
43
GetU32Data(const char * ptr)44 uint32_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[INPUT_TWO] << OFFSET_TWO) |
48 ptr[INPUT_THREE];
49 }
50
GetFuzzAbilityRecord()51 std::shared_ptr<AbilityRecord> GetFuzzAbilityRecord()
52 {
53 AbilityRequest abilityRequest;
54 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
55 abilityRequest.abilityInfo.name = "MainAbility";
56 abilityRequest.abilityInfo.type = AbilityType::DATA;
57 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
58 return abilityRecord;
59 }
60
DoSomethingInterestingWithMyAPI(const char * data,size_t size)61 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
62 {
63 std::string stringParam(data, size);
64 Parcel wantParcel;
65 Want* want = nullptr;
66 if (wantParcel.WriteBuffer(data, size)) {
67 want = Want::Unmarshalling(wantParcel);
68 if (!want) {
69 return false;
70 }
71 }
72
73 // fuzz for AbilityManagerService
74 auto abilityms = std::make_shared<AbilityManagerService>();
75 abilityms->IsNeedTimeoutForTest(stringParam, stringParam);
76 abilityms->GetValidDataAbilityUri(stringParam, stringParam);
77 if (want) {
78 delete want;
79 want = nullptr;
80 }
81 return true;
82 }
83 }
84
85 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)86 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
87 {
88 /* Run your code on data */
89 if (data == nullptr) {
90 return 0;
91 }
92
93 /* Validate the length of size */
94 if (size < OHOS::U32_AT_SIZE) {
95 return 0;
96 }
97
98 char* ch = static_cast<char*>(malloc(size + 1));
99 if (ch == nullptr) {
100 std::cout << "malloc failed." << std::endl;
101 return 0;
102 }
103
104 (void)memset_s(ch, size + 1, 0x00, size + 1);
105 if (memcpy_s(ch, size, data, size) != EOK) {
106 std::cout << "copy failed." << std::endl;
107 free(ch);
108 ch = nullptr;
109 return 0;
110 }
111
112 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
113 free(ch);
114 ch = nullptr;
115 return 0;
116 }
117
118