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 "abilityappmgrrenderstateobservermanager_fuzzer.h"
17 #include "ability_record.h"
18
19 #include <cstddef>
20 #include <cstdint>
21
22 #define private public
23 #include "render_state_observer_manager.h"
24 #include "hilog_tag_wrapper.h"
25 #include "iremote_object.h"
26 #undef private
27 #include "render_state_observer_proxy.h"
28 #include "render_state_observer_stub.h"
29
30 #include "securec.h"
31
32
33 using namespace OHOS::AAFwk;
34 using namespace OHOS::AppExecFwk;
35
36 namespace OHOS {
37 namespace {
38 constexpr int INPUT_ZERO = 0;
39 constexpr int INPUT_ONE = 1;
40 constexpr int INPUT_TWO = 2;
41 constexpr int INPUT_THREE = 3;
42 constexpr size_t FOO_MAX_LEN = 1024;
43 constexpr size_t U32_AT_SIZE = 4;
44 constexpr size_t OFFSET_ZERO = 24;
45 constexpr size_t OFFSET_ONE = 16;
46 constexpr size_t OFFSET_TWO = 8;
47 constexpr uint8_t ENABLE = 2;
48 }
GetU32Data(const char * ptr)49 uint32_t GetU32Data(const char* ptr)
50 {
51 // convert fuzz input data to an integer
52 return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[INPUT_TWO] << OFFSET_TWO) |
53 ptr[INPUT_THREE];
54 }
55
GetFuzzAbilityToken()56 sptr<Token> GetFuzzAbilityToken()
57 {
58 sptr<Token> token = nullptr;
59 AbilityRequest abilityRequest;
60 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
61 abilityRequest.abilityInfo.name = "MainAbility";
62 abilityRequest.abilityInfo.type = AbilityType::DATA;
63 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
64 if (abilityRecord) {
65 token = abilityRecord->GetToken();
66 }
67 return token;
68 }
69
DoSomethingInterestingWithMyAPI(const char * data,size_t size)70 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
71 {
72 std::shared_ptr<RenderStateObserverManager> manager = std::make_shared<RenderStateObserverManager>();
73 manager->Init();
74 sptr<IRenderStateObserver> observer;
75 manager->RegisterRenderStateObserver(observer);
76 manager->Init();
77 sptr<IRenderStateObserver> observers;
78 manager->UnregisterRenderStateObserver(observers);
79 manager->Init();
80 std::shared_ptr<RenderRecord> renderRecord;
81 int32_t state = static_cast<int32_t>(GetU32Data(data));
82 manager->OnRenderStateChanged(renderRecord, state);
83 return true;
84 }
85 }
86
87 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)88 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
89 {
90 /* Run your code on data */
91 if (data == nullptr) {
92 std::cout << "invalid data" << std::endl;
93 return 0;
94 }
95
96 /* Validate the length of size */
97 if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
98 return 0;
99 }
100
101 char* ch = static_cast<char*>(malloc(size + 1));
102 if (ch == nullptr) {
103 std::cout << "malloc failed." << std::endl;
104 return 0;
105 }
106
107 (void)memset_s(ch, size + 1, 0x00, size + 1);
108 if (memcpy_s(ch, size + 1, data, size) != EOK) {
109 std::cout << "copy failed." << std::endl;
110 free(ch);
111 ch = nullptr;
112 return 0;
113 }
114
115 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
116 free(ch);
117 ch = nullptr;
118 return 0;
119 }
120
121