diff --git a/ndn-cpp/face.cc b/ndn-cpp/face.cc
new file mode 100644
index 0000000..455f283
--- /dev/null
+++ b/ndn-cpp/face.cc
@@ -0,0 +1,118 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2013, Regents of the University of California
+ *                     Alexander Afanasyev
+ *
+ * BSD license, See the LICENSE file for more information
+ *
+ * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#include "face.h"
+
+namespace ndn {
+
+Face::sent_interest
+Face::sendInterest (Ptr<const Interest> interest, const SatisfiedInterestCallback &dataCallback)
+{
+  // magic to be done in child class
+
+  sent_interest item = m_sentInterests.find_exact (interest->getName ());
+  if (item == m_sentInterests.end ())
+    {
+      std::pair<sent_interest, bool> insertRes =
+        m_sentInterests.insert (interest->getName (), Ptr<sent_interest_container::payload_traits::payload_type>::Create ());
+
+      item = insertRes.first;
+    }
+  item->payload ()->push_back (dataCallback);
+
+  return item;
+}
+
+void
+Face::clearInterest (Face::sent_interest interest)
+{
+  m_sentInterests.erase (interest);
+}
+  
+Face::registered_prefix
+Face::setInterestFilter (Ptr<const Name> prefix, const ExpectedInterestCallback &interestCallback)
+{
+  // magic to be done in child class
+  
+  registered_prefix item = m_registeredPrefixes.find_exact (*prefix);
+  if (item == m_registeredPrefixes.end ())
+    {
+      std::pair<registered_prefix, bool> insertRes =
+        m_registeredPrefixes.insert (*prefix, Ptr<registered_prefix_container::payload_traits::payload_type>::Create ());
+
+      item = insertRes.first;
+    }
+  item->payload ()->push_back (interestCallback);
+
+  return item;
+}
+
+void
+Face::clearInterestFilter (const Name &prefix)
+{
+  registered_prefix item = m_registeredPrefixes.find_exact (prefix);
+  if (item == m_registeredPrefixes.end ())
+    return;
+
+  clearInterestFilter (item);
+}
+
+void
+Face::clearInterestFilter (Face::registered_prefix filter)
+{
+  m_registeredPrefixes.erase (filter);
+}
+
+} // ndn
+
+// void
+// CcnxWrapper::OnInterest (const Ptr<const ndn::Interest> &interest, Ptr<Packet> packet)
+// {
+//   ndn::App::OnInterest (interest, packet);
+
+//   // the app cannot set several filters for the same prefix
+//   CcnxFilterEntryContainer<InterestCallback>::iterator entry = m_interestCallbacks.longest_prefix_match (interest->GetName ());
+//   if (entry == m_interestCallbacks.end ())
+//     {
+//       _LOG_DEBUG ("No Interest callback set");
+//       return;
+//     }
+  
+//   entry->payload ()->m_callback (lexical_cast<string> (interest->GetName ()));  
+// }
+
+// void
+// CcnxWrapper::OnContentObject (const Ptr<const ndn::ContentObject> &contentObject,
+//                               Ptr<Packet> payload)
+// {
+//   ndn::App::OnContentObject (contentObject, payload);
+//   NS_LOG_DEBUG ("<< D " << contentObject->GetName ());
+
+//   CcnxFilterEntryContainer<RawDataCallback>::iterator entry = m_dataCallbacks.longest_prefix_match (contentObject->GetName ());
+//   if (entry == m_dataCallbacks.end ())
+//     {
+//       _LOG_DEBUG ("No Data callback set");
+//       return;
+//     }
+
+//   while (entry != m_dataCallbacks.end ())
+//     {
+//       ostringstream content;
+//       payload->CopyData (&content, payload->GetSize ());
+  
+//       entry->payload ()->m_callback (lexical_cast<string> (contentObject->GetName ()), content.str ().c_str (), content.str ().size ());
+  
+//       m_dataCallbacks.erase (entry);
+
+//       entry = m_dataCallbacks.longest_prefix_match (contentObject->GetName ());
+//     }
+// }
+
+// }