model: Change NetDeviceFace into NetDeviceLinkService to match NFD 0.4+ Face model
ndnSIM (for now) intentionally uses LinkService instead of Transport for
optimization purposes and in order to preserve ns3::Packet Tags. This
may be fixed in the future when there is a different mechanism to
propagate ns3 Tags or Tags are no longer necessary.
Change-Id: I2aeef8f37d587374a1c9fe04386e33b6fde83fe0
Refs: #3560
diff --git a/model/ndn-net-device-link-service.cpp b/model/ndn-net-device-link-service.cpp
new file mode 100644
index 0000000..ecb262a
--- /dev/null
+++ b/model/ndn-net-device-link-service.cpp
@@ -0,0 +1,154 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2011-2015 Regents of the University of California.
+ *
+ * This file is part of ndnSIM. See AUTHORS for complete list of ndnSIM authors and
+ * contributors.
+ *
+ * ndnSIM 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.
+ *
+ * ndnSIM 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
+ * ndnSIM, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+#include "ndn-net-device-link-service.hpp"
+#include "ndn-l3-protocol.hpp"
+
+#include "ndn-ns3.hpp"
+
+#include "ns3/net-device.h"
+#include "ns3/log.h"
+#include "ns3/packet.h"
+#include "ns3/node.h"
+#include "ns3/pointer.h"
+
+// #include "ns3/address.h"
+#include "ns3/point-to-point-net-device.h"
+#include "ns3/channel.h"
+
+#include "../utils/ndn-fw-hop-count-tag.hpp"
+
+NS_LOG_COMPONENT_DEFINE("ndn.NetDeviceLinkService");
+
+namespace ns3 {
+namespace ndn {
+
+// TODO: remove as soon as L3Protocol is back
+const uint16_t L3Protocol::ETHERNET_FRAME_TYPE = 0x7777;
+const uint16_t L3Protocol::IP_STACK_PORT = 9695;
+
+NetDeviceLinkService::NetDeviceLinkService(Ptr<Node> node, const Ptr<NetDevice>& netDevice)
+ : m_node(node)
+ , m_netDevice(netDevice)
+{
+ NS_LOG_FUNCTION(this << netDevice);
+
+ NS_ASSERT_MSG(m_netDevice != 0, "NetDeviceFace needs to be assigned a valid NetDevice");
+
+ m_node->RegisterProtocolHandler(MakeCallback(&NetDeviceLinkService::receiveFromNetDevice, this),
+ L3Protocol::ETHERNET_FRAME_TYPE, m_netDevice,
+ true /*promiscuous mode*/);
+}
+
+NetDeviceLinkService::~NetDeviceLinkService()
+{
+ NS_LOG_FUNCTION_NOARGS();
+}
+
+Ptr<Node>
+NetDeviceLinkService::GetNode() const
+{
+ return m_node;
+}
+
+Ptr<NetDevice>
+NetDeviceLinkService::GetNetDevice() const
+{
+ return m_netDevice;
+}
+
+void
+NetDeviceLinkService::doSendInterest(const Interest& interest)
+{
+ NS_LOG_FUNCTION(this << &interest);
+
+ Ptr<Packet> packet = Convert::ToPacket(interest);
+ send(packet);
+}
+
+void
+NetDeviceLinkService::doSendData(const Data& data)
+{
+ NS_LOG_FUNCTION(this << &data);
+
+ Ptr<Packet> packet = Convert::ToPacket(data);
+ send(packet);
+}
+
+void
+NetDeviceLinkService::doSendNack(const lp::Nack& nack)
+{
+ NS_LOG_FUNCTION(this << &nack);
+
+ // TODO
+ // Ptr<Packet> packet = Convert::ToPacket(nack);
+ // send(packet);
+}
+
+// callback
+void
+NetDeviceLinkService::receiveFromNetDevice(Ptr<NetDevice> device, Ptr<const Packet> p, uint16_t protocol,
+ const Address& from, const Address& to,
+ NetDevice::PacketType packetType)
+{
+ NS_LOG_FUNCTION(device << p << protocol << from << to << packetType);
+
+ Ptr<Packet> packet = p->Copy();
+ try {
+ switch (Convert::getPacketType(p)) {
+ case ::ndn::tlv::Interest: {
+ shared_ptr<const Interest> i = Convert::FromPacket<Interest>(packet);
+ this->receiveInterest(*i);
+ break;
+ }
+ case ::ndn::tlv::Data: {
+ shared_ptr<const Data> d = Convert::FromPacket<Data>(packet);
+ this->receiveData(*d);
+ break;
+ }
+ // case ::ndn::tlv::Nack: {
+ // shared_ptr<const Nack> n = Convert::FromPacket<Nack>(packet);
+ // this->onReceiveNack(*n);
+ // }
+ default:
+ NS_LOG_ERROR("Unsupported TLV packet");
+ }
+ }
+ catch (const ::ndn::tlv::Error& e) {
+ NS_LOG_ERROR("Unrecognized TLV packet " << e.what());
+ }
+}
+
+void
+NetDeviceLinkService::send(Ptr<Packet> packet)
+{
+ NS_ASSERT_MSG(packet->GetSize() <= m_netDevice->GetMtu(),
+ "Packet size " << packet->GetSize() << " exceeds device MTU "
+ << m_netDevice->GetMtu());
+
+ FwHopCountTag tag;
+ packet->RemovePacketTag(tag);
+ tag.Increment();
+ packet->AddPacketTag(tag);
+
+ m_netDevice->Send(packet, m_netDevice->GetBroadcast(), L3Protocol::ETHERNET_FRAME_TYPE);
+}
+
+} // namespace face
+} // namespace nfd