--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/contrib/flow-id-tag.cc	Wed Jun 11 11:12:15 2008 -0700
@@ -0,0 +1,88 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2008 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: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
+ */
+#include "flow-id-tag.h"
+
+namespace ns3 {
+
+TypeId 
+FlowIdTag::GetTypeId (void)
+{
+  static TypeId tid = TypeId ("ns3::FlowIdTag")
+    .SetParent<Tag> ()
+    .AddConstructor<FlowIdTag> ()
+    ;
+  return tid;
+}
+TypeId 
+FlowIdTag::GetInstanceTypeId (void) const
+{
+  return GetTypeId ();
+}
+uint32_t 
+FlowIdTag::GetSerializedSize (void) const
+{
+  return 4;
+}
+void 
+FlowIdTag::Serialize (TagBuffer buf) const
+{
+  buf.WriteU32 (m_flowId);
+}
+void 
+FlowIdTag::Deserialize (TagBuffer buf)
+{
+  m_flowId = buf.ReadU32 ();
+}
+void 
+FlowIdTag::Print (std::ostream &os) const
+{
+  os << "FlowId=" << m_flowId;
+}
+FlowIdTag::FlowIdTag ()
+  : Tag () 
+{}
+
+FlowIdTag::FlowIdTag (uint32_t id)
+  : Tag (),
+    m_flowId (id)
+{}
+
+void
+FlowIdTag::SetFlowId (uint32_t id)
+{
+  m_flowId = id;
+}
+uint32_t
+FlowIdTag::GetFlowId (void) const
+{
+  return m_flowId;
+}
+
+uint32_t 
+FlowIdTag::AllocateFlowId (void)
+{
+  static uint32_t nextFlowId = 1;
+  uint32_t flowId = nextFlowId;
+  nextFlowId++;
+  return flowId;
+}
+
+} // namespace ns3
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/contrib/flow-id-tag.h	Wed Jun 11 11:12:15 2008 -0700
@@ -0,0 +1,47 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2008 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: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
+ */
+#ifndef FLOW_ID_TAG_H
+#define FLOW_ID_TAG_H
+
+#include "ns3/tag.h"
+
+namespace ns3 {
+
+class FlowIdTag : public Tag
+{
+public:
+  static TypeId GetTypeId (void);
+  virtual TypeId GetInstanceTypeId (void) const;
+  virtual uint32_t GetSerializedSize (void) const;
+  virtual void Serialize (TagBuffer buf) const;
+  virtual void Deserialize (TagBuffer buf);
+  virtual void Print (std::ostream &os) const;
+  FlowIdTag ();
+  FlowIdTag (uint32_t flowId);
+  void SetFlowId (uint32_t flowId);
+  uint32_t GetFlowId (void) const;
+  static uint32_t AllocateFlowId (void);
+private:
+  uint32_t m_flowId;
+};
+
+} // namespace ns3
+
+#endif /* FLOW_ID_TAG_H */