public/lib/netemul/network/ethertap_client.h

// Copyright 2018 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef LIB_NETEMUL_NETWORK_ETHERTAP_CLIENT_H_
#define LIB_NETEMUL_NETWORK_ETHERTAP_CLIENT_H_

#include <lib/fit/function.h>
#include <lib/zx/socket.h>
#include <stdlib.h>
#include <zircon/types.h>
#include <memory>
#include <string>
#include <vector>
#include "ethertap_types.h"

namespace netemul {

class EthertapConfig {
 public:
  std::string name = "etap";
  uint32_t options = 0;
  uint32_t features = 0;
  uint32_t mtu = 1500;
  Mac mac;

  EthertapConfig() {
    // default mac to a random local unicast
    mac.RandomLocalUnicast();
  }
};

class EthertapClient {
 public:
  using PacketCallback = fit::function<void(const void* buf, size_t len)>;
  using PeerClosedCallback = fit::function<void()>;
  virtual ~EthertapClient() = default;

  virtual void SetLinkUp(bool linkUp) = 0;
  virtual zx_status_t Send(const void* data, size_t len, size_t* sent) = 0;
  virtual void SetPacketCallback(PacketCallback cb) = 0;
  virtual void SetPeerClosedCallback(PeerClosedCallback cb) = 0;
  // closes connection locally with ethertap (no peer closed cb)
  virtual void Close() = 0;

  virtual zx_status_t Send(const void* data, size_t len) {
    return Send(data, len, nullptr);
  }

  virtual const zx::socket& socket() = 0;

  static std::unique_ptr<EthertapClient> Create(const EthertapConfig& config);
};

}  // namespace netemul

#endif  // LIB_NETEMUL_NETWORK_ETHERTAP_CLIENT_H_