1 /*
2 * Copyright (c) 2022 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 "inputclientstub_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #include "fuzzer/FuzzedDataProvider.h"
22 #include "global.h"
23 #include "input_client_service_impl.h"
24 #include "input_method_agent_service_impl.h"
25 #include "message_parcel.h"
26
27 using namespace OHOS::MiscServices;
28 namespace OHOS {
29 constexpr size_t THRESHOLD = 10;
30 constexpr int32_t OFFSET = 4;
31 const std::u16string INPUTCLIENTSTUB_INTERFACE_TOKEN = u"OHOS.MiscServices.IInputClient";
32
ConvertToUint32(const uint8_t * ptr)33 uint32_t ConvertToUint32(const uint8_t *ptr)
34 {
35 if (ptr == nullptr) {
36 return 0;
37 }
38 uint32_t bigVar = (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | (ptr[3]);
39 return bigVar;
40 }
41
FuzzInputClientStub(const uint8_t * rawData,size_t size)42 void FuzzInputClientStub(const uint8_t *rawData, size_t size)
43 {
44 uint32_t code = ConvertToUint32(rawData);
45 rawData = rawData + OFFSET;
46 size = size - OFFSET;
47
48 MessageParcel data;
49 data.WriteInterfaceToken(INPUTCLIENTSTUB_INTERFACE_TOKEN);
50 data.WriteBuffer(rawData, size);
51 data.RewindRead(0);
52 MessageParcel reply;
53 MessageOption option;
54
55 sptr<InputClientStub> mClient = new InputClientServiceImpl();
56 mClient->OnRemoteRequest(code, data, reply, option);
57 }
58
TextOnInputReady()59 void TextOnInputReady()
60 {
61 sptr<InputClientStub> mClient = new InputClientServiceImpl();
62 sptr<InputMethodAgentStub> mInputMethodAgentStub = new InputMethodAgentServiceImpl();
63 MessageParcel data;
64 data.WriteRemoteObject(mInputMethodAgentStub->AsObject());
65 auto remoteObject = data.ReadRemoteObject();
66 BindImeInfo imeInfo;
67 imeInfo.pid = 0;
68 imeInfo.bundleName = "bundleName";
69 mClient->OnInputReady(remoteObject, imeInfo);
70 }
71
TestOnSwitchInput()72 void TestOnSwitchInput()
73 {
74 sptr<InputClientStub> mClient = new InputClientServiceImpl();
75 Property property = {};
76 SubProperty subProperty = {};
77
78 mClient->OnSwitchInput(property, subProperty);
79 }
80
TestOnImeMirrorStop()81 void TestOnImeMirrorStop()
82 {
83 sptr<InputClientStub> mClient = new InputClientServiceImpl();
84 Property property = {};
85 SubProperty subProperty = {};
86 sptr<InputMethodAgentStub> mInputMethodAgentStub = new InputMethodAgentServiceImpl();
87 MessageParcel data;
88 data.WriteRemoteObject(mInputMethodAgentStub->AsObject());
89 auto remoteObject = data.ReadRemoteObject();
90 mClient->OnImeMirrorStop(remoteObject);
91 }
92 } // namespace OHOS
93
94 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)95 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
96 {
97 if (size < OHOS::THRESHOLD) {
98 return 0;
99 }
100 /* Run your code on data */
101 FuzzedDataProvider provider(data, size);
102 OHOS::FuzzInputClientStub(data, size);
103 OHOS::TextOnInputReady();
104 OHOS::TestOnSwitchInput();
105 OHOS::TestOnImeMirrorStop();
106 return 0;
107 }