1 /*
2 * Copyright (c) 2022-2023 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 "pasteboardservice_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20 #include <map>
21
22 #include "copy_uri_handler.h"
23 #include "i_pasteboard_service.h"
24 #include "message_parcel.h"
25 #include "paste_data.h"
26 #include "pasteboard_service.h"
27 #include "pasteboard_serv_ipc_interface_code.h"
28
29 using namespace OHOS::Security::PasteboardServ;
30 using namespace OHOS::MiscServices;
31
32 namespace OHOS {
33 constexpr size_t THRESHOLD = 10;
34 constexpr int32_t OFFSET = 4;
35 const std::u16string PASTEBOARDSERVICE_INTERFACE_TOKEN = u"ohos.miscservices.pasteboard.IPasteboardService";
36
ConvertToUint32(const uint8_t * ptr)37 uint32_t ConvertToUint32(const uint8_t *ptr)
38 {
39 if (ptr == nullptr) {
40 return 0;
41 }
42 uint32_t bigVar = (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | (ptr[3]);
43 return bigVar;
44 }
45
FuzzPasteboardService(const uint8_t * rawData,size_t size)46 bool FuzzPasteboardService(const uint8_t *rawData, size_t size)
47 {
48 uint32_t code = ConvertToUint32(rawData);
49 rawData = rawData + OFFSET;
50 size = size - OFFSET;
51
52 MessageParcel data;
53 data.WriteInterfaceToken(PASTEBOARDSERVICE_INTERFACE_TOKEN);
54 data.WriteInt32(size);
55 data.WriteBuffer(rawData, size);
56 data.RewindRead(0);
57 MessageParcel reply;
58 MessageOption option;
59
60 std::make_shared<PasteboardService>()->OnRemoteRequest(code, data, reply, option);
61
62 return true;
63 }
64
FuzzPasteboardServiceOnSetPasteData(const uint8_t * rawData,size_t size)65 bool FuzzPasteboardServiceOnSetPasteData(const uint8_t *rawData, size_t size)
66 {
67 rawData = rawData + OFFSET;
68 size = size - OFFSET;
69
70 MessageParcel data;
71 data.WriteInterfaceToken(PASTEBOARDSERVICE_INTERFACE_TOKEN);
72 data.WriteInt32(size);
73 data.WriteBuffer(rawData, size);
74 data.RewindRead(0);
75 MessageParcel reply;
76 MessageOption option;
77
78 std::make_shared<PasteboardService>()->OnRemoteRequest(
79 static_cast<uint32_t>(PasteboardServiceInterfaceCode::SET_PASTE_DATA), data, reply, option);
80
81 MessageParcel source;
82 std::make_shared<PasteboardService>()->OnRemoteRequest(
83 static_cast<uint32_t>(PasteboardServiceInterfaceCode::HAS_PASTE_DATA), source, reply, option);
84
85 std::make_shared<PasteboardService>()->OnRemoteRequest(
86 static_cast<uint32_t>(PasteboardServiceInterfaceCode::GET_PASTE_DATA), source, reply, option);
87
88 std::make_shared<PasteboardService>()->OnRemoteRequest(
89 static_cast<uint32_t>(PasteboardServiceInterfaceCode::CLEAR_ALL), source, reply, option);
90 return true;
91 }
92
FuzzPasteOnIsRemoteData(const uint8_t * rawData,size_t size)93 bool FuzzPasteOnIsRemoteData(const uint8_t *rawData, size_t size)
94 {
95 rawData = rawData + OFFSET;
96 size = size - OFFSET;
97
98 MessageParcel data;
99 data.WriteInterfaceToken(PASTEBOARDSERVICE_INTERFACE_TOKEN);
100 data.WriteInt32(size);
101 data.WriteBuffer(rawData, size);
102 data.RewindRead(0);
103 MessageParcel reply;
104 MessageOption option;
105
106 std::make_shared<PasteboardService>()->OnRemoteRequest(
107 static_cast<uint32_t>(PasteboardServiceInterfaceCode::IS_REMOTE_DATA), data, reply, option);
108
109 std::make_shared<PasteboardService>()->OnRemoteRequest(
110 static_cast<uint32_t>(PasteboardServiceInterfaceCode::GET_DATA_SOURCE), data, reply, option);
111
112 std::make_shared<PasteboardService>()->OnRemoteRequest(
113 static_cast<uint32_t>(PasteboardServiceInterfaceCode::HAS_DATA_TYPE), data, reply, option);
114
115 return true;
116 }
117
FuzzPasteOnAddChangedObserver(const uint8_t * rawData,size_t size)118 bool FuzzPasteOnAddChangedObserver(const uint8_t *rawData, size_t size)
119 {
120 rawData = rawData + OFFSET;
121 size = size - OFFSET;
122
123 MessageParcel data;
124 data.WriteInterfaceToken(PASTEBOARDSERVICE_INTERFACE_TOKEN);
125 data.WriteInt32(size);
126 data.WriteBuffer(rawData, size);
127 data.RewindRead(0);
128 MessageParcel reply;
129 MessageOption option;
130
131 std::make_shared<PasteboardService>()->OnRemoteRequest(
132 static_cast<uint32_t>(PasteboardServiceInterfaceCode::ADD_CHANGED_OBSERVER), data, reply, option);
133
134 std::make_shared<PasteboardService>()->OnRemoteRequest(
135 static_cast<uint32_t>(PasteboardServiceInterfaceCode::DELETE_CHANGED_OBSERVER), data, reply, option);
136
137 std::make_shared<PasteboardService>()->OnRemoteRequest(
138 static_cast<uint32_t>(PasteboardServiceInterfaceCode::DELETE_ALL_CHANGED_OBSERVER), data, reply, option);
139
140 return true;
141 }
142
FuzzPasteOnAddEventObserver(const uint8_t * rawData,size_t size)143 bool FuzzPasteOnAddEventObserver(const uint8_t *rawData, size_t size)
144 {
145 rawData = rawData + OFFSET;
146 size = size - OFFSET;
147
148 MessageParcel data;
149 data.WriteInterfaceToken(PASTEBOARDSERVICE_INTERFACE_TOKEN);
150 data.WriteInt32(size);
151 data.WriteBuffer(rawData, size);
152 data.RewindRead(0);
153 MessageParcel reply;
154 MessageOption option;
155
156 std::make_shared<PasteboardService>()->OnRemoteRequest(
157 static_cast<uint32_t>(PasteboardServiceInterfaceCode::ADD_EVENT_OBSERVER), data, reply, option);
158
159 std::make_shared<PasteboardService>()->OnRemoteRequest(
160 static_cast<uint32_t>(PasteboardServiceInterfaceCode::DELETE_EVENT_OBSERVER), data, reply, option);
161
162 std::make_shared<PasteboardService>()->OnRemoteRequest(
163 static_cast<uint32_t>(PasteboardServiceInterfaceCode::DELETE_ALL_EVENT_OBSERVER), data, reply, option);
164
165 return true;
166 }
167 } // namespace OHOS
168 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)169 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
170 {
171 if (size < OHOS::THRESHOLD) {
172 return 0;
173 }
174 /* Run your code on data */
175 OHOS::FuzzPasteboardService(data, size);
176 OHOS::FuzzPasteboardServiceOnSetPasteData(data, size);
177 OHOS::FuzzPasteOnIsRemoteData(data, size);
178 OHOS::FuzzPasteOnAddChangedObserver(data, size);
179 OHOS::FuzzPasteOnAddEventObserver(data, size);
180 return 0;
181 }
182