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 "connectionobserverclient_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #define protected public
23 #include "connection_observer_client.h"
24 #include "service_proxy_adapter.h"
25 #undef protected
26 #undef private
27
28 #include "ability_record.h"
29 #include "continuous_task_callback_info.h"
30
31 using namespace OHOS::AAFwk;
32 using namespace OHOS::AppExecFwk;
33 using namespace OHOS::AbilityRuntime;
34
35 namespace OHOS {
36 namespace {
37 constexpr size_t FOO_MAX_LEN = 1024;
38 constexpr size_t U32_AT_SIZE = 4;
39
40 class MyConnectionObserver : public ConnectionObserver {
41 public:
42 MyConnectionObserver() = default;
43 virtual ~MyConnectionObserver() = default;
OnExtensionConnected(const ConnectionData & data)44 void OnExtensionConnected(const ConnectionData& data) override
45 {}
OnExtensionDisconnected(const ConnectionData & data)46 void OnExtensionDisconnected(const ConnectionData& data) override
47 {}
OnDlpAbilityOpened(const DlpStateData & data)48 void OnDlpAbilityOpened(const DlpStateData& data) override
49 {}
OnDlpAbilityClosed(const DlpStateData & data)50 void OnDlpAbilityClosed(const DlpStateData& data) override
51 {}
OnServiceDied()52 void OnServiceDied() override
53 {}
54 };
55
56 class MyAbilityConnectionObserver : public IConnectionObserver {
57 public:
58 MyAbilityConnectionObserver() = default;
59 virtual ~MyAbilityConnectionObserver() = default;
OnExtensionConnected(const ConnectionData & data)60 void OnExtensionConnected(const ConnectionData& data) override
61 {}
OnExtensionDisconnected(const ConnectionData & data)62 void OnExtensionDisconnected(const ConnectionData& data) override
63 {}
64 #ifdef WITH_DLP
OnDlpAbilityOpened(const DlpStateData & data)65 void OnDlpAbilityOpened(const DlpStateData& data) override
66 {}
OnDlpAbilityClosed(const DlpStateData & data)67 void OnDlpAbilityClosed(const DlpStateData& data) override
68 {}
69 #endif // WITH_DLP
AsObject()70 sptr<IRemoteObject> AsObject() override
71 {
72 return {};
73 }
74 };
75 }
76
GetU32Data(const char * ptr)77 uint32_t GetU32Data(const char* ptr)
78 {
79 // convert fuzz input data to an integer
80 return (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | ptr[3];
81 }
82
DoSomethingInterestingWithMyAPI(const char * data,size_t size)83 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
84 {
85 std::shared_ptr<ConnectionObserver> observer = std::make_shared<MyConnectionObserver>();
86 // fuzz for connectionObserverClient
87 auto connectionObserverClient = std::make_shared<ConnectionObserverClient>();
88 connectionObserverClient->UnregisterObserver(observer);
89 sptr<IRemoteObject> remoteObj;
90 auto serviceProxyAdapter = std::make_shared<ServiceProxyAdapter>(remoteObj);
91 sptr<AbilityRuntime::IConnectionObserver> cobserver = new MyAbilityConnectionObserver();
92 serviceProxyAdapter->UnregisterObserver(cobserver);
93 serviceProxyAdapter->GetProxyObject();
94 return true;
95 }
96 }
97
98 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)99 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
100 {
101 /* Run your code on data */
102 if (data == nullptr) {
103 return 0;
104 }
105
106 /* Validate the length of size */
107 if (size < OHOS::U32_AT_SIZE || size > OHOS::FOO_MAX_LEN) {
108 return 0;
109 }
110
111 char* ch = static_cast<char*>(malloc(size + 1));
112 if (ch == nullptr) {
113 std::cout << "malloc failed." << std::endl;
114 return 0;
115 }
116
117 (void)memset_s(ch, size + 1, 0x00, size + 1);
118 if (memcpy_s(ch, size, data, size) != EOK) {
119 std::cout << "copy failed." << std::endl;
120 free(ch);
121 ch = nullptr;
122 return 0;
123 }
124
125 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
126 free(ch);
127 ch = nullptr;
128 return 0;
129 }
130
131