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 #define private public
16 #define protected public
17 #include "fuzzer/FuzzedDataProvider.h"
18 #include "scanusbmanager_fuzzer.h"
19 #include "scan_usb_manager.h"
20 #include "scan_service_ability.h"
21
22
23 namespace OHOS {
24 namespace Scan {
25 constexpr uint8_t MAX_STRING_LENGTH = 255;
26 constexpr size_t FOO_MAX_LEN = 1024;
27 constexpr size_t U32_AT_SIZE = 4;
28
TestRefreshUsbDevice(const uint8_t * data,size_t size,FuzzedDataProvider * dataProvider)29 void TestRefreshUsbDevice(const uint8_t* data, size_t size, FuzzedDataProvider* dataProvider)
30 {
31 DelayedSingleton<ScanUsbManager>::GetInstance()->RefreshUsbDevice();
32 }
33
TestInit(const uint8_t * data,size_t size,FuzzedDataProvider * dataProvider)34 void TestInit(const uint8_t* data, size_t size, FuzzedDataProvider* dataProvider)
35 {
36 DelayedSingleton<ScanUsbManager>::GetInstance()->Init();
37 }
38
39
TestDealUsbDevStatusChange(const uint8_t * data,size_t size,FuzzedDataProvider * dataProvider)40 void TestDealUsbDevStatusChange(const uint8_t* data, size_t size, FuzzedDataProvider* dataProvider)
41 {
42 std::string devStr = dataProvider->ConsumeRandomLengthString(MAX_STRING_LENGTH);
43 bool isAttach = dataProvider->ConsumeBool();
44 std::string devStrOne = "2-3";
45 DelayedSingleton<ScanUsbManager>::GetInstance()->DealUsbDevStatusChange(devStr, isAttach);
46 DelayedSingleton<ScanUsbManager>::GetInstance()->DealUsbDevStatusChange(devStrOne, true);
47 ScanServiceAbility::usbSnMap[devStrOne] = dataProvider->ConsumeRandomLengthString(MAX_STRING_LENGTH);
48 DelayedSingleton<ScanUsbManager>::GetInstance()->DealUsbDevStatusChange(devStrOne, false);
49 }
50
TestGetDeviceSerialNumber(const uint8_t * data,size_t size,FuzzedDataProvider * dataProvider)51 void TestGetDeviceSerialNumber(const uint8_t* data, size_t size, FuzzedDataProvider* dataProvider)
52 {
53 USB::USBDevicePipe usbDevicePipe;
54 DelayedSingleton<ScanUsbManager>::GetInstance()->GetDeviceSerialNumber(usbDevicePipe);
55 }
56
TestUsbUpdateUsbScannerId(const uint8_t * data,size_t size,FuzzedDataProvider * dataProvider)57 void TestUsbUpdateUsbScannerId(const uint8_t* data, size_t size, FuzzedDataProvider* dataProvider)
58 {
59 std::string usbDeviceName = "2-4";
60 std::string serialNumber = "QWERTY";
61 ScanServiceAbility::usbSnMap[usbDeviceName] = serialNumber;
62 ScanDeviceInfo scanDeviceInfo;
63 scanDeviceInfo.deviceId = "pantu:libusb:002:004";
64 scanDeviceInfo.serialNumber = serialNumber;
65 ScanServiceAbility::saneGetUsbDeviceInfoMap[serialNumber] = scanDeviceInfo;
66 ScanUsbManager::GetInstance()->UpdateUsbScannerId(serialNumber, usbDeviceName);
67
68 std::string fuzzUsbDeviceName = dataProvider->ConsumeRandomLengthString(MAX_STRING_LENGTH);
69 std::string fuzzSerialNumber = dataProvider->ConsumeRandomLengthString(MAX_STRING_LENGTH);
70 ScanServiceAbility::usbSnMap[fuzzUsbDeviceName] = fuzzSerialNumber;
71 ScanDeviceInfo fuzzScanDeviceInfo;
72 scanDeviceInfo.deviceId = dataProvider->ConsumeRandomLengthString(MAX_STRING_LENGTH);
73 scanDeviceInfo.serialNumber = fuzzSerialNumber;
74 ScanServiceAbility::saneGetUsbDeviceInfoMap[fuzzSerialNumber] = fuzzScanDeviceInfo;
75 ScanUsbManager::GetInstance()->UpdateUsbScannerId(fuzzSerialNumber, fuzzUsbDeviceName);
76 }
77
TestUsbDisConnectUsbScanner(const uint8_t * data,size_t size,FuzzedDataProvider * dataProvider)78 void TestUsbDisConnectUsbScanner(const uint8_t* data, size_t size, FuzzedDataProvider* dataProvider)
79 {
80 std::string usbDeviceName = "2-3";
81 std::string serialNumber = "ASDFGH";
82 ScanServiceAbility::usbSnMap[usbDeviceName] = serialNumber;
83 ScanDeviceInfo scanDeviceInfo;
84 scanDeviceInfo.deviceId = dataProvider->ConsumeRandomLengthString(MAX_STRING_LENGTH);
85 scanDeviceInfo.serialNumber = serialNumber;
86 ScanServiceAbility::saneGetUsbDeviceInfoMap[serialNumber] = scanDeviceInfo;
87 ScanUsbManager::GetInstance()->DisConnectUsbScanner(usbDeviceName);
88
89 std::string fuzzUsbDeviceName = dataProvider->ConsumeRandomLengthString(MAX_STRING_LENGTH);
90 std::string fuzzSerialNumber = dataProvider->ConsumeRandomLengthString(MAX_STRING_LENGTH);
91 ScanServiceAbility::usbSnMap[fuzzUsbDeviceName] = fuzzSerialNumber;
92 ScanDeviceInfo fuzzScanDeviceInfo;
93 scanDeviceInfo.deviceId = dataProvider->ConsumeRandomLengthString(MAX_STRING_LENGTH);
94 scanDeviceInfo.serialNumber = fuzzSerialNumber;
95 ScanServiceAbility::saneGetUsbDeviceInfoMap[fuzzSerialNumber] = fuzzScanDeviceInfo;
96 ScanUsbManager::GetInstance()->DisConnectUsbScanner(fuzzUsbDeviceName);
97 }
98 }
99 }
100
101 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)102 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
103 {
104 if (data == nullptr) {
105 return 0;
106 }
107
108 if (size < OHOS::Scan::U32_AT_SIZE || size > OHOS::Scan::FOO_MAX_LEN) {
109 return 0;
110 }
111 FuzzedDataProvider dataProvider(data, size);
112 OHOS::Scan::TestRefreshUsbDevice(data, size, &dataProvider);
113 OHOS::Scan::TestInit(data, size, &dataProvider);
114 OHOS::Scan::TestDealUsbDevStatusChange(data, size, &dataProvider);
115 OHOS::Scan::TestGetDeviceSerialNumber(data, size, &dataProvider);
116 OHOS::Scan::TestUsbUpdateUsbScannerId(data, size, &dataProvider);
117 OHOS::Scan::TestUsbDisConnectUsbScanner(data, size, &dataProvider);
118
119 return 0;
120 }
121
122