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 "abilityframeworksnativejsworker_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #include "js_worker.h"
23 #undef private
24
25 #include "ability_record.h"
26 #include "securec.h"
27
28 using namespace OHOS::AAFwk;
29 using namespace OHOS::AppExecFwk;
30
31 namespace OHOS {
32 namespace {
33 constexpr int INPUT_ZERO = 0;
34 constexpr int INPUT_ONE = 1;
35 constexpr int INPUT_TWO = 2;
36 constexpr int INPUT_THREE = 3;
37 constexpr size_t U32_AT_SIZE = 4;
38 constexpr size_t OFFSET_ZERO = 24;
39 constexpr size_t OFFSET_ONE = 16;
40 constexpr size_t OFFSET_TWO = 8;
41 constexpr uint8_t ENABLE = 2;
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
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<JsEnv::WorkerInfo> workerInfo = std::make_shared<JsEnv::WorkerInfo>();
68 workerInfo->codePath = panda::panda_file::StringPacProtect("/data/test/codePath");
69 workerInfo->packagePathStr = "/data/test/packagePath";
70 workerInfo->hapPath = panda::panda_file::StringPacProtect("/data/test/hapPath");
71 workerInfo->moduleName = "moduleName";
72 AbilityRuntime::AssetHelper helper = AbilityRuntime::AssetHelper(workerInfo);
73 std::string jsonStr(data, size);
74 uint8_t *buff = nullptr;
75 size_t buffSize;
76 helper.GetSafeData(jsonStr, &buff, &buffSize);
77 helper.NormalizedFileName(jsonStr);
78 bool useSecureMem = *data % ENABLE;
79 bool isRestricted = *data % ENABLE;
80 std::vector<uint8_t> content;
81 helper.ReadAmiData(jsonStr, &buff, &buffSize, content, useSecureMem, isRestricted);
82 helper.ReadFilePathData(jsonStr, &buff, &buffSize, content, useSecureMem, isRestricted);
83 helper.GetAmi(jsonStr, jsonStr);
84 AbilityRuntime::GetContainerId();
85 bool isDebugApp = *data % ENABLE;
86 bool isNativeStart = *data % ENABLE;
87 AbilityRuntime::StartDebuggerInWorkerModule(isDebugApp, isNativeStart);
88 NativeEngine *nativeEngine = nullptr;
89 AbilityRuntime::InitWorkerFunc(nativeEngine);
90 AbilityRuntime::OffWorkerFunc(nativeEngine);
91 int32_t id = static_cast<int32_t>(GetU32Data(data));
92 AbilityRuntime::UpdateContainerScope(id);
93 AbilityRuntime::RestoreContainerScope(id);
94 AbilityRuntime::SetJsFramework();
95 return true;
96 }
97 }
98
99 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)100 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
101 {
102 /* Run your code on data */
103 if (data == nullptr) {
104 return 0;
105 }
106
107 /* Validate the length of size */
108 if (size < OHOS::U32_AT_SIZE) {
109 return 0;
110 }
111
112 char* ch = static_cast<char*>(malloc(size + 1));
113 if (ch == nullptr) {
114 std::cout << "malloc failed." << std::endl;
115 return 0;
116 }
117
118 (void)memset_s(ch, size + 1, 0x00, size + 1);
119 if (memcpy_s(ch, size + 1, data, size) != EOK) {
120 std::cout << "copy failed." << std::endl;
121 free(ch);
122 ch = nullptr;
123 return 0;
124 }
125
126 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
127 free(ch);
128 ch = nullptr;
129 return 0;
130 }
131
132