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 "abilitymgrappexitreasonhelper_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #include "app_exit_reason_helper.h"
23 #include "ability_manager_service.h"
24 #undef private
25
26 #include "securec.h"
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 FOO_MAX_LEN = 1024;
39 constexpr size_t U32_AT_SIZE = 4;
40 constexpr size_t OFFSET_ZERO = 24;
41 constexpr size_t OFFSET_ONE = 16;
42 constexpr size_t OFFSET_TWO = 8;
43 constexpr uint8_t ENABLE = 2;
44 }
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 std::shared_ptr<SubManagersHelper> subManagersHelper;
69 std::shared_ptr<AppExitReasonHelper> infos = std::make_shared<AppExitReasonHelper>(subManagersHelper);
70 std::string jsonStr(data, size);
71 Reason reasonmin = Reason::REASON_MIN;
72 Reason reasonmax = Reason::REASON_MAX;
73 for (int i = reasonmin; i <= reasonmax; ++i) {
74 Reason reason = static_cast<Reason>(i);
75 ExitReason exitReason(reason, jsonStr);
76 infos->RecordAppExitReason(exitReason);
77 int32_t uid = static_cast<int32_t>(GetU32Data(data));
78 int32_t appIndex = static_cast<int32_t>(GetU32Data(data));
79 infos->RecordAppExitReason(jsonStr, uid, appIndex, exitReason);
80 int32_t pid = static_cast<int32_t>(GetU32Data(data));
81 infos->RecordProcessExtensionExitReason(pid, jsonStr, exitReason);
82 infos->RecordProcessExitReason(pid, exitReason);
83 uint32_t accessTokenId = static_cast<uint32_t>(GetU32Data(data));
84 infos->RecordProcessExitReason(pid, jsonStr, uid, accessTokenId, exitReason);
85 std::vector<std::string> abilityLists;
86 infos->GetActiveAbilityList(uid, abilityLists, pid);
87 infos->GetActiveAbilityListFromUIAbilityManager(uid, abilityLists, pid);
88 infos->IsExitReasonValid(exitReason);
89 }
90 return true;
91 }
92 }
93
94 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)95 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
96 {
97 /* Run your code on data */
98 if (data == nullptr) {
99 std::cout << "invalid data" << std::endl;
100 return 0;
101 }
102
103 /* Validate the length of size */
104 if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
105 return 0;
106 }
107
108 char* ch = static_cast<char*>(malloc(size + 1));
109 if (ch == nullptr) {
110 std::cout << "malloc failed." << std::endl;
111 return 0;
112 }
113
114 (void)memset_s(ch, size + 1, 0x00, size + 1);
115 if (memcpy_s(ch, size + 1, data, size) != EOK) {
116 std::cout << "copy failed." << std::endl;
117 free(ch);
118 ch = nullptr;
119 return 0;
120 }
121
122 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
123 free(ch);
124 ch = nullptr;
125 return 0;
126 }
127
128