52 lines
1.9 KiB
C++
52 lines
1.9 KiB
C++
// Copyright 2020 Google LLC
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
#include <fuzzer/FuzzedDataProvider.h>
|
|
|
|
#include <algorithm>
|
|
#include <cstddef>
|
|
#include <cstdint>
|
|
|
|
#include "libusb/libusb.h"
|
|
#include "libusb/libusbi.h"
|
|
|
|
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
|
|
struct libusb_transfer *transfer = NULL;
|
|
FuzzedDataProvider stream(data, size);
|
|
uint8_t bmRequestType = stream.ConsumeIntegral<uint8_t>();
|
|
uint8_t bRequest = stream.ConsumeIntegral<uint8_t>();
|
|
uint16_t wValue = stream.ConsumeIntegral<uint16_t>();
|
|
uint16_t wIndex = stream.ConsumeIntegral<uint16_t>();
|
|
uint16_t wLength = stream.ConsumeIntegral<uint16_t>();
|
|
std::string input = stream.ConsumeRandomLengthString();
|
|
const char *d = input.c_str();
|
|
|
|
transfer = libusb_alloc_transfer(0);
|
|
if (!transfer) {
|
|
return LIBUSB_ERROR_NO_MEM;
|
|
}
|
|
|
|
libusb_fill_control_setup((unsigned char *)d, bmRequestType, bRequest, wValue, wIndex, wLength);
|
|
|
|
// Cleanup.
|
|
// We cannot call libusb_free_transfer as no callbacks has occurred. Calling
|
|
// libusb_free_transfer without this will trigger false positive errors.
|
|
struct usbi_transfer *itransfer = LIBUSB_TRANSFER_TO_USBI_TRANSFER(transfer);
|
|
usbi_mutex_destroy(&itransfer->lock);
|
|
size_t priv_size = PTR_ALIGN(usbi_backend.transfer_priv_size);
|
|
unsigned char *ptr = (unsigned char *)itransfer - priv_size;
|
|
free(ptr);
|
|
|
|
return 0;
|
|
}
|