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 "usbmgrcontroltransfer_fuzzer.h"
17
18#include "usb_srv_client.h"
19#include "usb_errors.h"
20
21using namespace OHOS::HDI::Usb::V1_0;
22namespace OHOS {
23const uint32_t OFFSET = 4;
24constexpr size_t THRESHOLD = 10;
25namespace USB {
26    bool UsbMgrControlTransferFuzzTest(const uint8_t* data, size_t /* size */)
27    {
28        std::vector<UsbDevice> devList;
29        auto &usbSrvClient = UsbSrvClient::GetInstance();
30        auto ret = usbSrvClient.GetDevices(devList);
31        if (ret != UEC_OK || devList.empty()) {
32            USB_HILOGE(MODULE_USB_SERVICE, "get devices failed ret=%{public}d", ret);
33            return false;
34        }
35
36        USBDevicePipe pipe;
37        UsbDevice device = devList.front();
38        usbSrvClient.RequestRight(device.GetName());
39        ret = usbSrvClient.OpenDevice(device, pipe);
40        if (ret != UEC_OK) {
41            USB_HILOGE(MODULE_USB_SERVICE, "open device failed ret=%{public}d", ret);
42            return false;
43        }
44
45        UsbInterface interface = devList.front().GetConfigs().front().GetInterfaces().front();
46        ret = usbSrvClient.ClaimInterface(pipe, interface, true);
47        if (ret != UEC_OK) {
48            USB_HILOGE(MODULE_USB_SERVICE, "ClaimInterface failed ret=%{public}d", ret);
49            return false;
50        }
51
52        std::vector<uint8_t> buf;
53        ret = usbSrvClient.ControlTransfer(reinterpret_cast<USBDevicePipe &>(data),
54            reinterpret_cast<const UsbCtrlTransfer &>(std::move(data + OFFSET)), buf);
55        if (ret == UEC_OK) {
56            return false;
57        }
58        return true;
59    }
60} // USB
61} // OHOS
62
63/* Fuzzer entry point */
64extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
65{
66    if (size < OHOS::THRESHOLD) {
67        return 0;
68    }
69    /* Run your code on data */
70    OHOS::USB::UsbMgrControlTransferFuzzTest(data, size);
71    return 0;
72}
73
74