blob: f8d83a87b926250a312935d78593e3f09f88fecf [file] [log] [blame]
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
* Copyright (c) 2014 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
*
* 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 "client-control-strategy.hpp"
#include "core/logger.hpp"
namespace nfd {
namespace fw {
NFD_LOG_INIT("ClientControlStrategy");
const Name ClientControlStrategy::STRATEGY_NAME("ndn:/localhost/nfd/strategy/client-control");
ClientControlStrategy::ClientControlStrategy(Forwarder& forwarder, const Name& name)
: BestRouteStrategy(forwarder, name)
{
}
ClientControlStrategy::~ClientControlStrategy()
{
}
void
ClientControlStrategy::afterReceiveInterest(const Face& inFace,
const Interest& interest,
shared_ptr<fib::Entry> fibEntry,
shared_ptr<pit::Entry> pitEntry)
{
// Strategy needn't check whether LocalControlHeader-NextHopFaceId is enabled.
// LocalFace does this check.
if (!interest.getLocalControlHeader().hasNextHopFaceId()) {
this->BestRouteStrategy::afterReceiveInterest(inFace, interest, fibEntry, pitEntry);
return;
}
FaceId outFaceId = static_cast<FaceId>(interest.getNextHopFaceId());
shared_ptr<Face> outFace = this->getFace(outFaceId);
if (!static_cast<bool>(outFace)) {
// If outFace doesn't exist, it's better to reject the Interest
// than to use BestRouteStrategy.
NFD_LOG_WARN("Interest " << interest.getName() <<
" NextHopFaceId=" << outFaceId << " non-existent face");
this->rejectPendingInterest(pitEntry);
return;
}
this->sendInterest(pitEntry, outFace);
}
} // namespace fw
} // namespace nfd