daemon/face/null-face.cpp

/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
 * Copyright (c) 2014-2015,  Regents of the University of California,
 *                           Arizona Board of Regents,
 *                           Colorado State University,
 *                           University Pierre & Marie Curie, Sorbonne University,
 *                           Washington University in St. Louis,
 *                           Beijing Institute of Technology,
 *                           The University of Memphis.
 *
 * This file is part of NFD (Named Data Networking Forwarding Daemon).
 * See AUTHORS.md for complete list of NFD authors and contributors.
 *
 * NFD is free software: you can redistribute it and/or modify it under the terms
 * of the GNU General Public License as published by the Free Software Foundation,
 * either version 3 of the License, or (at your option) any later version.
 *
 * NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 * PURPOSE.  See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "null-face.hpp"
#include "lp-face-wrapper.hpp"
#include "generic-link-service.hpp"
#include "internal-transport.hpp"

namespace nfd {
namespace face {

// FIB could restrict creating a nexthop record toward non-local face in /localhost namespace.
// NullFace has scope=local to enable creating a "blackhole" FIB entry under /localhost.

shared_ptr<Face>
makeNullFace(const FaceUri& uri)
{
  auto face = make_unique<LpFace>(make_unique<GenericLinkService>(),
                                  make_unique<InternalForwarderTransport>(uri, uri, ndn::nfd::FACE_SCOPE_LOCAL));
  auto faceW = make_shared<LpFaceWrapper>(std::move(face));
  // TODO#3172 eliminate wrapper

  return faceW;
}

} // namespace face
} // namespace nfd