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
23namespace OHOS {
24namespace 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
29    void TestDealUsbDevStatusChange(const uint8_t* data, size_t size, FuzzedDataProvider* dataProvider)
30    {
31        DelayedSingleton<ScanUsbManager>::GetInstance()->Init();
32        DelayedSingleton<ScanUsbManager>::GetInstance()->RefreshUsbDevice();
33        std::string devStr = dataProvider->ConsumeRandomLengthString(MAX_STRING_LENGTH);
34        bool isAttach = dataProvider->ConsumeBool();
35        std::string devStrOne = "2-3";
36        DelayedSingleton<ScanUsbManager>::GetInstance()->DealUsbDevStatusChange(devStr, isAttach);
37        DelayedSingleton<ScanUsbManager>::GetInstance()->DealUsbDevStatusChange(devStrOne, true);
38        ScanServiceAbility::usbSnMap[devStrOne] = dataProvider->ConsumeRandomLengthString(MAX_STRING_LENGTH);
39        DelayedSingleton<ScanUsbManager>::GetInstance()->DealUsbDevStatusChange(devStrOne, false);
40        USB::USBDevicePipe usbDevicePipe;
41        DelayedSingleton<ScanUsbManager>::GetInstance()->GetDeviceSerialNumber(usbDevicePipe);
42    }
43
44    void TestUsbUpdateUsbScannerId(const uint8_t* data, size_t size, FuzzedDataProvider* dataProvider)
45    {
46        std::string usbDeviceName = "2-4";
47        std::string serialNumber = "QWERTY";
48        ScanServiceAbility::usbSnMap[usbDeviceName] = serialNumber;
49        ScanDeviceInfo scanDeviceInfo;
50        scanDeviceInfo.deviceId = "pantu:libusb:002:004";
51        scanDeviceInfo.serialNumber = serialNumber;
52        ScanServiceAbility::saneGetUsbDeviceInfoMap[serialNumber] = scanDeviceInfo;
53        ScanUsbManager::GetInstance()->UpdateUsbScannerId(serialNumber, usbDeviceName);
54
55        std::string fuzzUsbDeviceName = dataProvider->ConsumeRandomLengthString(MAX_STRING_LENGTH);
56        std::string fuzzSerialNumber = dataProvider->ConsumeRandomLengthString(MAX_STRING_LENGTH);
57        ScanServiceAbility::usbSnMap[fuzzUsbDeviceName] = fuzzSerialNumber;
58        ScanDeviceInfo fuzzScanDeviceInfo;
59        scanDeviceInfo.deviceId = dataProvider->ConsumeRandomLengthString(MAX_STRING_LENGTH);
60        scanDeviceInfo.serialNumber = fuzzSerialNumber;
61        ScanServiceAbility::saneGetUsbDeviceInfoMap[fuzzSerialNumber] = fuzzScanDeviceInfo;
62        ScanUsbManager::GetInstance()->UpdateUsbScannerId(fuzzSerialNumber, fuzzUsbDeviceName);
63    }
64
65    void TestUsbDisConnectUsbScanner(const uint8_t* data, size_t size, FuzzedDataProvider* dataProvider)
66    {
67        std::string usbDeviceName = "2-3";
68        std::string serialNumber = "ASDFGH";
69        ScanServiceAbility::usbSnMap[usbDeviceName] = serialNumber;
70        ScanDeviceInfo scanDeviceInfo;
71        scanDeviceInfo.deviceId = dataProvider->ConsumeRandomLengthString(MAX_STRING_LENGTH);
72        scanDeviceInfo.serialNumber = serialNumber;
73        ScanServiceAbility::saneGetUsbDeviceInfoMap[serialNumber] = scanDeviceInfo;
74        ScanUsbManager::GetInstance()->DisConnectUsbScanner(usbDeviceName);
75
76        std::string fuzzUsbDeviceName = dataProvider->ConsumeRandomLengthString(MAX_STRING_LENGTH);
77        std::string fuzzSerialNumber = dataProvider->ConsumeRandomLengthString(MAX_STRING_LENGTH);
78        ScanServiceAbility::usbSnMap[fuzzUsbDeviceName] = fuzzSerialNumber;
79        ScanDeviceInfo fuzzScanDeviceInfo;
80        scanDeviceInfo.deviceId = dataProvider->ConsumeRandomLengthString(MAX_STRING_LENGTH);
81        scanDeviceInfo.serialNumber = fuzzSerialNumber;
82        ScanServiceAbility::saneGetUsbDeviceInfoMap[fuzzSerialNumber] = fuzzScanDeviceInfo;
83        ScanUsbManager::GetInstance()->DisConnectUsbScanner(fuzzUsbDeviceName);
84    }
85}
86}
87
88/* Fuzzer entry point */
89extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
90{
91    if (data == nullptr) {
92        return 0;
93    }
94
95    if (size < OHOS::Scan::U32_AT_SIZE || size > OHOS::Scan::FOO_MAX_LEN) {
96        return 0;
97    }
98    FuzzedDataProvider dataProvider(data, size);
99    OHOS::Scan::TestDealUsbDevStatusChange(data, size, &dataProvider);
100    OHOS::Scan::TestUsbUpdateUsbScannerId(data, size, &dataProvider);
101    OHOS::Scan::TestUsbDisConnectUsbScanner(data, size, &dataProvider);
102
103    return 0;
104}
105
106