/*

 * The MIT License (MIT)

 *

 * Copyright (c) 2022 Nathaniel Brough

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 * THE SOFTWARE.

 *

 */

#include "tusb_config.h"

#if defined(CFG_TUD_ECM_RNDIS) || defined(CFG_TUD_NCM)

#include "class/net/net_device.h"

#include "fuzz_private.h"

#include <cassert>

#include <cstdint>

#include <vector>

#include "lwip/sys.h"

extern "C" {

bool tud_network_recv_cb(const uint8_t *src, uint16_t size) {

  assert(_fuzz_data_provider.has_value());

  (void)src;

  (void)size;

  return _fuzz_data_provider->ConsumeBool();

}

// client must provide this: copy from network stack packet pointer to dst

uint16_t tud_network_xmit_cb(uint8_t *dst, void *ref, uint16_t arg) {

  (void)ref;

  (void)arg;

  assert(_fuzz_data_provider.has_value());

  uint16_t size = _fuzz_data_provider->ConsumeIntegral<uint16_t>();

  std::vector<uint8_t> temp = _fuzz_data_provider->ConsumeBytes<uint8_t>(size);

  memcpy(dst, temp.data(), temp.size());

  return size;

}

/* lwip has provision for using a mutex, when applicable */

sys_prot_t sys_arch_protect(void) { return 0; }

void sys_arch_unprotect(sys_prot_t pval) { (void)pval; }

//------------- ECM/RNDIS -------------//

// client must provide this: initialize any network state back to the beginning

void tud_network_init_cb(void) {

  // NoOp.

}

// client must provide this: 48-bit MAC address

// TODO removed later since it is not part of tinyusb stack

uint8_t tud_network_mac_address[6] = {0};

}   // extern "C"

#endif