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
16 #include "usbmgrusbcontroltransfer_fuzzer.h"
17
18 #include "usb_srv_client.h"
19 #include "usb_errors.h"
20
21 using namespace OHOS::HDI::Usb::V1_0;
22 using namespace OHOS::HDI::Usb::V1_2;
23 namespace OHOS {
24 const uint32_t OFFSET = 4;
25 constexpr size_t THRESHOLD = 10;
26 namespace USB {
UsbMgrUsbControlTransferFuzzTest(const uint8_t * data,size_t size)27 bool UsbMgrUsbControlTransferFuzzTest(const uint8_t* data, size_t size)
28 {
29 if (data == nullptr || size < sizeof(USBDevicePipe) || size < OFFSET + sizeof(UsbCtrlTransferParams)) {
30 USB_HILOGE(MODULE_USB_SERVICE, "data size is insufficient!");
31 return false;
32 }
33 std::vector<UsbDevice> devList;
34 auto &usbSrvClient = UsbSrvClient::GetInstance();
35 auto ret = usbSrvClient.GetDevices(devList);
36 if (ret != UEC_OK || devList.empty()) {
37 USB_HILOGE(MODULE_USB_SERVICE, "get devices failed ret=%{public}d", ret);
38 return false;
39 }
40
41 USBDevicePipe pipe;
42 UsbDevice device = devList.front();
43 usbSrvClient.RequestRight(device.GetName());
44 ret = usbSrvClient.OpenDevice(device, pipe);
45 if (ret != UEC_OK) {
46 USB_HILOGE(MODULE_USB_SERVICE, "open device failed ret=%{public}d", ret);
47 return false;
48 }
49
50 UsbInterface interface = devList.front().GetConfigs().front().GetInterfaces().front();
51 ret = usbSrvClient.ClaimInterface(pipe, interface, true);
52 if (ret != UEC_OK) {
53 USB_HILOGE(MODULE_USB_SERVICE, "ClaimInterface failed ret=%{public}d", ret);
54 return false;
55 }
56
57 std::vector<uint8_t> buf;
58 ret = usbSrvClient.UsbControlTransfer(reinterpret_cast<USBDevicePipe &>(data),
59 reinterpret_cast<const UsbCtrlTransferParams &>(std::move(data + OFFSET)), buf);
60 if (ret == UEC_OK) {
61 return false;
62 }
63 return true;
64 }
65 } // USB
66 } // OHOS
67
68 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)69 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
70 {
71 if (size < OHOS::THRESHOLD) {
72 return 0;
73 }
74 /* Run your code on data */
75 OHOS::USB::UsbMgrUsbControlTransferFuzzTest(data, size);
76 return 0;
77 }
78
79