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 "accessibleabilityclientstub_fuzzer.h"
17 #include "accessible_ability_client_stub.h"
18 #include "securec.h"
19
20 namespace OHOS {
21 namespace Accessibility {
22 namespace {
23 constexpr size_t DATA_MIN_SIZE = 200;
24 constexpr char END_CHAR = '\0';
25 constexpr size_t LEN = 10;
26 }
27
28 class AccessibleAbilityClientTmplFuzzTest : public AccessibleAbilityClientStub {
29 public:
30 AccessibleAbilityClientTmplFuzzTest() = default;
31 ~AccessibleAbilityClientTmplFuzzTest() = default;
Init(const sptr<IAccessibleAbilityChannel> & channel,const int32_t channelId)32 void Init(const sptr<IAccessibleAbilityChannel> &channel, const int32_t channelId) override {};
Disconnect(const int32_t channelId)33 void Disconnect(const int32_t channelId) override {};
OnAccessibilityEvent(const AccessibilityEventInfo & eventInfo)34 void OnAccessibilityEvent(const AccessibilityEventInfo &eventInfo) override {};
OnKeyPressEvent(const MMI::KeyEvent & keyEvent,const int32_t sequence)35 void OnKeyPressEvent(const MMI::KeyEvent &keyEvent, const int32_t sequence) override {};
36 };
37
38 template<class T>
GetObject(T & object,const uint8_t * data,size_t size)39 size_t GetObject(T &object, const uint8_t *data, size_t size)
40 {
41 size_t objectSize = sizeof(object);
42 if (objectSize > size) {
43 return 0;
44 }
45 return memcpy_s(&object, objectSize, data, objectSize) == EOK ? objectSize : 0;
46 }
47
OnRemoteRequestFuzzTest(const uint8_t * data,size_t size)48 bool OnRemoteRequestFuzzTest(const uint8_t* data, size_t size)
49 {
50 if (data == nullptr || size < DATA_MIN_SIZE) {
51 return false;
52 }
53
54 size_t position = 0;
55 uint32_t cilentCode = 0;
56 MessageParcel clientData;
57 MessageParcel clientReply;
58 MessageOption option(MessageOption::TF_SYNC);
59
60 GetObject<uint32_t>(cilentCode, &data[position], size - position);
61 AccessibleAbilityClientTmplFuzzTest callBackImp;
62 clientData.WriteInterfaceToken(AccessibleAbilityClientTmplFuzzTest::GetDescriptor());
63 callBackImp.OnRemoteRequest(cilentCode, clientData, clientReply, option);
64 return true;
65 }
66 } // namespace Accessibility
67 } // namespace OHOS
68
69 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)70 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
71 {
72 /* Run your code on data */
73 OHOS::Accessibility::OnRemoteRequestFuzzTest(data, size);
74 return 0;
75 }