First approximation of CCNx protocol stack
diff --git a/model/ccnx-interface.cc b/model/ccnx-interface.cc
new file mode 100644
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--- /dev/null
+++ b/model/ccnx-interface.cc
@@ -0,0 +1,165 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2005,2006,2007 INRIA
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Author:
+ *
+ */
+
+#include "ccnx-interface.h"
+
+#include "ns3/ccnx-address.h"
+#include "ns3/ccnx-l3-protocol.h"
+#include "ns3/net-device.h"
+#include "ns3/log.h"
+#include "ns3/packet.h"
+#include "ns3/node.h"
+#include "ns3/pointer.h"
+
+NS_LOG_COMPONENT_DEFINE ("CcnxInterface");
+
+namespace ns3 {
+
+NS_OBJECT_ENSURE_REGISTERED (CcnxInterface);
+
+TypeId
+CcnxInterface::GetTypeId (void)
+{
+ static TypeId tid = TypeId ("ns3::CcnxInterface")
+ .SetParent<Object> ()
+ ;
+ return tid;
+}
+
+/**
+ * By default, Ccnx interface are created in the "down" state
+ * with no IP addresses. Before becoming useable, the user must
+ * invoke SetUp on them once an Ccnx address and mask have been set.
+ */
+CcnxInterface::CcnxInterface ()
+ : m_ifup (false),
+ m_metric (1),
+ m_node (0),
+ m_device (0),
+{
+ NS_LOG_FUNCTION (this);
+}
+
+CcnxInterface::~CcnxInterface ()
+{
+ NS_LOG_FUNCTION_NOARGS ();
+}
+
+void
+CcnxInterface::DoDispose (void)
+{
+ NS_LOG_FUNCTION_NOARGS ();
+ m_node = 0;
+ m_device = 0;
+ Object::DoDispose ();
+}
+
+void
+CcnxInterface::SetNode (Ptr<Node> node)
+{
+ m_node = node;
+}
+
+void
+CcnxInterface::SetDevice (Ptr<NetDevice> device)
+{
+ m_device = device;
+}
+
+Ptr<NetDevice>
+CcnxInterface::GetDevice (void) const
+{
+ return m_device;
+}
+
+void
+CcnxInterface::SetMetric (uint16_t metric)
+{
+ NS_LOG_FUNCTION (metric);
+ m_metric = metric;
+}
+
+uint16_t
+CcnxInterface::GetMetric (void) const
+{
+ NS_LOG_FUNCTION_NOARGS ();
+ return m_metric;
+}
+
+/**
+ * These are interface states and may be distinct from
+ * NetDevice states, such as found in real implementations
+ * (where the device may be down but interface state is still up).
+ */
+bool
+CcnxInterface::IsUp (void) const
+{
+ NS_LOG_FUNCTION_NOARGS ();
+ return m_ifup;
+}
+
+bool
+CcnxInterface::IsDown (void) const
+{
+ NS_LOG_FUNCTION_NOARGS ();
+ return !m_ifup;
+}
+
+void
+CcnxInterface::SetUp (void)
+{
+ NS_LOG_FUNCTION_NOARGS ();
+ m_ifup = true;
+}
+
+void
+CcnxInterface::SetDown (void)
+{
+ NS_LOG_FUNCTION_NOARGS ();
+ m_ifup = false;
+}
+
+void
+CcnxInterface::Send (Ptr<Packet> p)
+{
+ NS_LOG_FUNCTION (*p);
+ if (!IsUp ())
+ {
+ return;
+ }
+
+ // Check if Local Delivery
+ // if (DynamicCast<LoopbackNetDevice> (m_device))
+ // {
+ // // XXX additional checks needed here (such as whether multicast
+ // // goes to loopback)?
+ // m_device->Send (p, m_device->GetBroadcast (),
+ // CcnxL3Protocol::PROT_NUMBER);
+ // return;
+ // }
+
+ NS_LOG_LOGIC ("Doesn't need ARP");
+ m_device->Send (p, m_device->GetBroadcast (),
+ CcnxL3Protocol::PROT_NUMBER);
+}
+
+}; // namespace ns3
+