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 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 }
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
GetFuzzAbilityToken()51 sptr<Token> GetFuzzAbilityToken()
52 {
53 sptr<Token> token = nullptr;
54 AbilityRequest abilityRequest;
55 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
56 abilityRequest.abilityInfo.name = "MainAbility";
57 abilityRequest.abilityInfo.type = AbilityType::DATA;
58 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
59 if (abilityRecord) {
60 token = abilityRecord->GetToken();
61 }
62 return token;
63 }
64
DoSomethingInterestingWithMyAPI(const char * data,size_t size)65 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
66 {
67 std::shared_ptr<SubManagersHelper> subManagersHelper;
68 std::shared_ptr<AppExitReasonHelper> infos = std::make_shared<AppExitReasonHelper>(subManagersHelper);
69 std::string jsonStr(data, size);
70 Reason reasonmin = Reason::REASON_MIN;
71 Reason reasonmax = Reason::REASON_MAX;
72 for (int i = reasonmin; i <= reasonmax; ++i) {
73 Reason reason = static_cast<Reason>(i);
74 ExitReason exitReason(reason, jsonStr);
75 infos->RecordAppExitReason(exitReason);
76 int32_t uid = static_cast<int32_t>(GetU32Data(data));
77 int32_t appIndex = static_cast<int32_t>(GetU32Data(data));
78 infos->RecordAppExitReason(jsonStr, uid, appIndex, exitReason);
79 int32_t pid = static_cast<int32_t>(GetU32Data(data));
80 infos->RecordProcessExtensionExitReason(pid, jsonStr, exitReason, {}, false);
81 infos->RecordProcessExitReason(pid, exitReason, false);
82 uint32_t accessTokenId = static_cast<uint32_t>(GetU32Data(data));
83 infos->RecordProcessExitReason(pid, jsonStr, uid, accessTokenId, exitReason, {}, false, false);
84 std::vector<std::string> abilityLists;
85 infos->GetActiveAbilityList(uid, abilityLists, pid);
86 infos->GetActiveAbilityListFromUIAbilityManager(uid, abilityLists, pid);
87 infos->IsExitReasonValid(exitReason);
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 std::cout << "invalid data" << std::endl;
99 return 0;
100 }
101
102 /* Validate the length of size */
103 if (size < OHOS::U32_AT_SIZE) {
104 return 0;
105 }
106
107 char* ch = static_cast<char*>(malloc(size + 1));
108 if (ch == nullptr) {
109 std::cout << "malloc failed." << std::endl;
110 return 0;
111 }
112
113 (void)memset_s(ch, size + 1, 0x00, size + 1);
114 if (memcpy_s(ch, size + 1, data, size) != EOK) {
115 std::cout << "copy failed." << std::endl;
116 free(ch);
117 ch = nullptr;
118 return 0;
119 }
120
121 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
122 free(ch);
123 ch = nullptr;
124 return 0;
125 }
126
127