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 "usbisotransferread_fuzzer.h"
17#include "UsbSubscriberTest.h"
18#include "hdf_log.h"
19#include "securec.h"
20#include "usbcommonfunction_fuzzer.h"
21#include "v1_0/iusb_interface.h"
22
23using namespace OHOS::HDI::Usb::V1_0;
24
25namespace OHOS {
26constexpr size_t THRESHOLD = 10;
27constexpr int32_t OFFSET = 4;
28constexpr int32_t OFFSET_BYTE = 8;
29namespace USB {
30bool UsbIsoTransferReadFuzzTest(const uint8_t *data, size_t size)
31{
32    (void)size;
33    UsbDev dev;
34    sptr<IUsbInterface> usbInterface = IUsbInterface::Get();
35    int32_t ret = UsbFuzzTestHostModeInit(dev, usbInterface);
36    if (ret != HDF_SUCCESS) {
37        HDF_LOGE("%{public}s: UsbFuzzTestHostModeInit failed", __func__);
38        return false;
39    }
40
41    UsbPipe pipe;
42    if (memcpy_s((void *)&pipe, sizeof(pipe), data, sizeof(pipe)) != EOK) {
43        HDF_LOGE("%{public}s: memcpy_s failed", __func__);
44        return false;
45    }
46
47    int32_t timeout = *(reinterpret_cast<int32_t *>(*(data + OFFSET)));
48    ret = usbInterface->IsoTransferRead(
49        dev, pipe, timeout, reinterpret_cast<std::vector<uint8_t> &>(std::move(data + OFFSET_BYTE)));
50    if (ret == HDF_SUCCESS) {
51        HDF_LOGI("%{public}s: iso transfer read succeed", __func__);
52    }
53
54    ret = usbInterface->CloseDevice(dev);
55    if (ret != HDF_SUCCESS) {
56        HDF_LOGE("%{public}s: close device failed", __func__);
57        return false;
58    }
59    return true;
60}
61} // namespace USB
62} // namespace OHOS
63
64extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
65{
66    if (size < OHOS::THRESHOLD) {
67        return 0;
68    }
69    OHOS::USB::UsbIsoTransferReadFuzzTest(data, size);
70    return 0;
71}