diff --git a/model/cs/ndn-content-store.cc b/model/cs/ndn-content-store.cc
new file mode 100644
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--- /dev/null
+++ b/model/cs/ndn-content-store.cc
@@ -0,0 +1,100 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2011,2012 University of California, Los Angeles
+ *
+ * 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: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ *         Ilya Moiseenko <iliamo@cs.ucla.edu>
+ *         
+ */
+
+#include "ndn-content-store.h"
+#include "ns3/log.h"
+#include "ns3/packet.h"
+#include "ns3/ndn-name-components.h"
+#include "ns3/ndn-interest-header.h"
+#include "ns3/ndn-content-object-header.h"
+
+NS_LOG_COMPONENT_DEFINE ("ndn.cs.ContentStore");
+
+namespace ns3 {
+namespace ndn {
+
+NS_OBJECT_ENSURE_REGISTERED (ContentStore);
+
+TypeId 
+ContentStore::GetTypeId (void)
+{
+  static TypeId tid = TypeId ("ns3::ndn::ContentStore")
+    .SetGroupName ("Ndn")
+    .SetParent<Object> ()
+
+    .AddTraceSource ("CacheHits", "Trace called every time there is a cache hit",
+                     MakeTraceSourceAccessor (&ContentStore::m_cacheHitsTrace))
+
+    .AddTraceSource ("CacheMisses", "Trace called every time there is a cache miss",
+                     MakeTraceSourceAccessor (&ContentStore::m_cacheMissesTrace))
+    ;
+
+  return tid;
+}
+
+
+ContentStore::~ContentStore () 
+{
+}
+
+namespace cs {
+
+//////////////////////////////////////////////////////////////////////
+
+Entry::Entry (Ptr<const ContentObjectHeader> header, Ptr<const Packet> packet)
+  : m_header (header)
+  , m_packet (packet->Copy ())
+{
+}
+
+Ptr<Packet>
+Entry::GetFullyFormedNdnPacket () const
+{
+  static ContentObjectTail tail; ///< \internal for optimization purposes
+
+  Ptr<Packet> packet = m_packet->Copy ();
+  packet->AddHeader (*m_header);
+  packet->AddTrailer (tail);
+  return packet;
+}
+
+const NameComponents&
+Entry::GetName () const
+{
+  return m_header->GetName ();
+}
+
+Ptr<const ContentObjectHeader>
+Entry::GetHeader () const
+{
+  return m_header;
+}
+
+Ptr<const Packet>
+Entry::GetPacket () const
+{
+  return m_packet;
+}
+
+} // namespace cs
+} // namespace ndn
+} // namespace ns3