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 "accessibilityelementoperatorcallbackstub_fuzzer.h"
17 #include "accessibility_element_operator_callback_stub.h"
18 #include "securec.h"
19
20 namespace OHOS {
21 namespace Accessibility {
22 namespace {
23 constexpr size_t DATA_MIN_SIZE = 100;
24 constexpr char END_CHAR = '\0';
25 constexpr size_t LEN = 10;
26 }
27
28 class ElementOperatorCallbackImplFuzzTest : public AccessibilityElementOperatorCallbackStub {
29 public:
30 ElementOperatorCallbackImplFuzzTest() = default;
31 ~ElementOperatorCallbackImplFuzzTest() = default;
32
SetSearchElementInfoByAccessibilityIdResult(const std::vector<AccessibilityElementInfo> & infos,const int32_t requestId)33 void SetSearchElementInfoByAccessibilityIdResult(const std::vector<AccessibilityElementInfo> &infos,
34 const int32_t requestId) override {}
SetSearchElementInfoByTextResult(const std::vector<AccessibilityElementInfo> & infos,const int32_t requestId)35 void SetSearchElementInfoByTextResult(const std::vector<AccessibilityElementInfo> &infos,
36 const int32_t requestId) override {}
SetFindFocusedElementInfoResult(const AccessibilityElementInfo & info,const int32_t requestId)37 void SetFindFocusedElementInfoResult(const AccessibilityElementInfo &info,
38 const int32_t requestId) override {}
SetFocusMoveSearchResult(const AccessibilityElementInfo & info,const int32_t requestId)39 void SetFocusMoveSearchResult(const AccessibilityElementInfo &info, const int32_t requestId) override {}
SetExecuteActionResult(const bool succeeded,const int32_t requestId)40 void SetExecuteActionResult(const bool succeeded, const int32_t requestId) override {}
SetCursorPositionResult(const int32_t cursorPosition,const int32_t requestId)41 void SetCursorPositionResult(const int32_t cursorPosition, const int32_t requestId) override {}
42 };
43
44 template<class T>
GetObject(T & object,const uint8_t * data,size_t size)45 size_t GetObject(T &object, const uint8_t *data, size_t size)
46 {
47 size_t objectSize = sizeof(object);
48 if (objectSize > size) {
49 return 0;
50 }
51 return memcpy_s(&object, objectSize, data, objectSize) == EOK ? objectSize : 0;
52 }
53
OnRemoteRequestFuzzTest(const uint8_t * data,size_t size)54 bool OnRemoteRequestFuzzTest(const uint8_t* data, size_t size)
55 {
56 if (data == nullptr || size < DATA_MIN_SIZE) {
57 return false;
58 }
59
60 size_t position = 0;
61 uint32_t code = 0;
62 MessageParcel mdata;
63 MessageParcel reply;
64 MessageOption option(MessageOption::TF_SYNC);
65
66 position += GetObject<uint32_t>(code, &data[position], size - position);
67 ElementOperatorCallbackImplFuzzTest callBackImp;
68 mdata.WriteInterfaceToken(ElementOperatorCallbackImplFuzzTest::GetDescriptor());
69 callBackImp.OnRemoteRequest(code, mdata, reply, option);
70 return true;
71 }
72 } // namespace Accessibility
73 } // namespace OHOS
74
75 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)76 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
77 {
78 /* Run your code on data */
79 OHOS::Accessibility::OnRemoteRequestFuzzTest(data, size);
80 return 0;
81 }