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
21 using namespace OHOS::HDI::Usb::V1_0;
22 namespace OHOS {
23 const uint32_t OFFSET = 4;
24 constexpr size_t THRESHOLD = 10;
25 namespace USB {
UsbMgrControlTransferFuzzTest(const uint8_t * data,size_t)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 */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)64 extern "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