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 FOO_MAX_LEN = 1024;
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 }
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<JsEnv::WorkerInfo> workerInfo = std::make_shared<JsEnv::WorkerInfo>();
69 workerInfo->codePath = panda::panda_file::StringPacProtect("/data/test/codePath");
70 workerInfo->packagePathStr = "/data/test/packagePath";
71 workerInfo->hapPath = panda::panda_file::StringPacProtect("/data/test/hapPath");
72 workerInfo->moduleName = "moduleName";
73 AbilityRuntime::AssetHelper helper = AbilityRuntime::AssetHelper(workerInfo);
74 std::string jsonStr(data, size);
75 uint8_t *buff = nullptr;
76 size_t buffSize;
77 helper.GetSafeData(jsonStr, &buff, &buffSize);
78 helper.NormalizedFileName(jsonStr);
79 bool useSecureMem = *data % ENABLE;
80 bool isRestricted = *data % ENABLE;
81 std::vector<uint8_t> content;
82 helper.ReadAmiData(jsonStr, &buff, &buffSize, content, useSecureMem, isRestricted);
83 helper.ReadFilePathData(jsonStr, &buff, &buffSize, content, useSecureMem, isRestricted);
84 helper.GetAmi(jsonStr, jsonStr);
85 AbilityRuntime::GetContainerId();
86 bool isDebugApp = *data % ENABLE;
87 bool isNativeStart = *data % ENABLE;
88 AbilityRuntime::StartDebuggerInWorkerModule(isDebugApp, isNativeStart);
89 NativeEngine *nativeEngine = nullptr;
90 AbilityRuntime::InitWorkerFunc(nativeEngine);
91 AbilityRuntime::OffWorkerFunc(nativeEngine);
92 int32_t id = static_cast<int32_t>(GetU32Data(data));
93 AbilityRuntime::UpdateContainerScope(id);
94 AbilityRuntime::RestoreContainerScope(id);
95 AbilityRuntime::SetJsFramework();
96 return true;
97 }
98 }
99
100 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)101 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
102 {
103 /* Run your code on data */
104 if (data == nullptr) {
105 return 0;
106 }
107
108 /* Validate the length of size */
109 if (size < OHOS::U32_AT_SIZE || size > OHOS::FOO_MAX_LEN) {
110 return 0;
111 }
112
113 char* ch = static_cast<char*>(malloc(size + 1));
114 if (ch == nullptr) {
115 std::cout << "malloc failed." << std::endl;
116 return 0;
117 }
118
119 (void)memset_s(ch, size + 1, 0x00, size + 1);
120 if (memcpy_s(ch, size + 1, data, size) != EOK) {
121 std::cout << "copy failed." << std::endl;
122 free(ch);
123 ch = nullptr;
124 return 0;
125 }
126
127 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
128 free(ch);
129 ch = nullptr;
130 return 0;
131 }
132
133