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 "abilitymanagerservicef_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
GetFuzzAbilityToken()44 sptr<Token> GetFuzzAbilityToken()
45 {
46 sptr<Token> token = nullptr;
47 AbilityRequest abilityRequest;
48 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
49 abilityRequest.abilityInfo.name = "MainAbility";
50 abilityRequest.abilityInfo.type = AbilityType::DATA;
51 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
52 if (abilityRecord) {
53 token = abilityRecord->GetToken();
54 }
55 return token;
56 }
57
DoSomethingInterestingWithMyAPI(const char * data,size_t size)58 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
59 {
60 int32_t int32Param = static_cast<int32_t>(GetU32Data(data));
61 std::string stringParam(data, size);
62 Parcel wantParcel;
63 Want *want = nullptr;
64 if (wantParcel.WriteBuffer(data, size)) {
65 want = Want::Unmarshalling(wantParcel);
66 if (!want) {
67 return false;
68 }
69 }
70 sptr<IRemoteObject> token = GetFuzzAbilityToken();
71
72 // fuzz for AbilityManagerService
73 auto abilityms = std::make_shared<AbilityManagerService>();
74 MissionSnapshot missionSnapshot;
75 abilityms->GetRemoteMissionSnapshotInfo(stringParam, int32Param, missionSnapshot);
76 abilityms->GetWMSHandler();
77 abilityms->CompleteFirstFrameDrawing(token);
78 abilityms->ShowPickerDialog(*want, int32Param, token);
79 std::vector<AppExecFwk::SupportWindowMode> windowModes;
80 abilityms->CheckWindowMode(int32Param, windowModes);
81 AbilityRequest abilityRequest;
82 abilityms->CheckCallServicePermission(abilityRequest);
83 abilityms->CheckCallDataAbilityPermission(abilityRequest);
84 abilityms->CreateVerificationInfo(abilityRequest);
85 abilityms->CheckCallServiceExtensionPermission(abilityRequest);
86 abilityms->CheckCallOtherExtensionPermission(abilityRequest);
87 abilityms->CheckCallServiceAbilityPermission(abilityRequest);
88
89 return true;
90 }
91 }
92
93 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)94 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
95 {
96 /* Run your code on data */
97 if (data == nullptr) {
98 return 0;
99 }
100
101 /* Validate the length of size */
102 if (size < OHOS::U32_AT_SIZE || size > OHOS::FOO_MAX_LEN) {
103 return 0;
104 }
105
106 char* ch = (char *)malloc(size + 1);
107 if (ch == nullptr) {
108 std::cout << "malloc failed." << std::endl;
109 return 0;
110 }
111
112 (void)memset_s(ch, size + 1, 0x00, size + 1);
113 if (memcpy_s(ch, size, data, size) != EOK) {
114 std::cout << "copy failed." << std::endl;
115 free(ch);
116 ch = nullptr;
117 return 0;
118 }
119
120 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
121 free(ch);
122 ch = nullptr;
123 return 0;
124 }
125
126