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 size_t FOO_MAX_LEN = 1024;
35 constexpr size_t U32_AT_SIZE = 4;
36 }
37
GetU32Data(const char * ptr)38 uint32_t GetU32Data(const char* ptr)
39 {
40 // convert fuzz input data to an integer
41 return (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | ptr[3];
42 }
43
GetFuzzAbilityRecord()44 std::shared_ptr<AbilityRecord> GetFuzzAbilityRecord()
45 {
46 AbilityRequest abilityRequest;
47 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
48 abilityRequest.abilityInfo.name = "MainAbility";
49 abilityRequest.abilityInfo.type = AbilityType::DATA;
50 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
51 return abilityRecord;
52 }
53
DoSomethingInterestingWithMyAPI(const char * data,size_t size)54 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
55 {
56 std::string stringParam(data, size);
57 Parcel wantParcel;
58 Want* want = nullptr;
59 if (wantParcel.WriteBuffer(data, size)) {
60 want = Want::Unmarshalling(wantParcel);
61 if (!want) {
62 return false;
63 }
64 }
65
66 // fuzz for AbilityManagerService
67 auto abilityms = std::make_shared<AbilityManagerService>();
68 abilityms->IsNeedTimeoutForTest(stringParam, stringParam);
69 abilityms->GetValidDataAbilityUri(stringParam, stringParam);
70
71 return true;
72 }
73 }
74
75 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)76 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
77 {
78 /* Run your code on data */
79 if (data == nullptr) {
80 return 0;
81 }
82
83 /* Validate the length of size */
84 if (size < OHOS::U32_AT_SIZE || size > OHOS::FOO_MAX_LEN) {
85 return 0;
86 }
87
88 char* ch = (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