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 "usbmgrclearhalt_fuzzer.h"
17
18 #include "usb_errors.h"
19 #include "usb_srv_client.h"
20
21 namespace OHOS {
22 const uint32_t OFFSET = 4;
23 constexpr size_t THRESHOLD = 10;
24 namespace USB {
UsbMgrClearHaltFuzzTest(const uint8_t * data,size_t)25 bool UsbMgrClearHaltFuzzTest(const uint8_t* data, size_t /* size */)
26 {
27 std::vector<UsbDevice> devList;
28 auto &usbSrvClient = UsbSrvClient::GetInstance();
29 auto ret = usbSrvClient.GetDevices(devList);
30 if (ret != UEC_OK || devList.empty()) {
31 USB_HILOGE(MODULE_USB_SERVICE, "get devices failed ret=%{public}d", ret);
32 return false;
33 }
34
35 USBDevicePipe pipe;
36 UsbDevice device = devList.front();
37 usbSrvClient.RequestRight(device.GetName());
38 ret = usbSrvClient.OpenDevice(device, pipe);
39 if (ret != UEC_OK) {
40 USB_HILOGE(MODULE_USB_SERVICE, "open device failed ret=%{public}d", ret);
41 return false;
42 }
43
44 UsbInterface interface = devList.front().GetConfigs().front().GetInterfaces().front();
45 ret = usbSrvClient.ClaimInterface(pipe, interface, true);
46 if (ret != UEC_OK) {
47 USB_HILOGE(MODULE_USB_SERVICE, "ClaimInterface failed ret=%{public}d", ret);
48 return false;
49 }
50
51 if (!interface.GetEndpoints().empty()) {
52 USBEndpoint ep = interface.GetEndpoints().front();
53 ret = usbSrvClient.ClearHalt(pipe, ep);
54 } else {
55 USB_HILOGW(MODULE_USB_SERVICE, "ClearHalt001 %{public}d no endpoints", __LINE__);
56 }
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::UsbMgrClearHaltFuzzTest(data, size);
71 return 0;
72 }
73