--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/internet/model/tcp-option-winscale.cc	Wed Aug 27 14:39:08 2014 -0500
@@ -0,0 +1,107 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2011 Adrian Sai-wah Tam
+ *
+ * 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: Adrian Sai-wah Tam <adrian.sw.tam@gmail.com>
+ * Documentation, test cases: Natale Patriciello <natale.patriciello@gmail.com>
+ */
+
+#include "tcp-option-winscale.h"
+
+namespace ns3 {
+
+NS_OBJECT_ENSURE_REGISTERED (TcpOptionWinScale);
+
+TcpOptionWinScale::TcpOptionWinScale ()
+  : TcpOption (),
+    m_scale (0)
+{
+}
+
+TcpOptionWinScale::~TcpOptionWinScale ()
+{
+}
+
+TypeId
+TcpOptionWinScale::GetTypeId (void)
+{
+  static TypeId tid = TypeId ("ns3::TcpOptionWinScale")
+    .SetParent<TcpOption> ()
+    .AddConstructor<TcpOptionWinScale> ()
+  ;
+  return tid;
+}
+
+TypeId
+TcpOptionWinScale::GetInstanceTypeId (void) const
+{
+  return GetTypeId ();
+}
+
+void
+TcpOptionWinScale::Print (std::ostream &os) const
+{
+  os << m_scale;
+}
+
+uint32_t
+TcpOptionWinScale::GetSerializedSize (void) const
+{
+  return 3;
+}
+
+void
+TcpOptionWinScale::Serialize (Buffer::Iterator start) const
+{
+  Buffer::Iterator i = start;
+  i.WriteU8 (GetKind ()); // Kind
+  i.WriteU8 (3); // Length
+  i.WriteU8 (m_scale); // Max segment size
+}
+
+uint32_t
+TcpOptionWinScale::Deserialize (Buffer::Iterator start)
+{
+  Buffer::Iterator i = start;
+  uint8_t size = i.ReadU8 ();
+  NS_ASSERT (size == 3);
+  m_scale = i.ReadU8 ();
+  return 3;
+}
+
+uint8_t
+TcpOptionWinScale::GetKind (void) const
+{
+  return TcpOption::WINSCALE;
+}
+
+uint8_t
+TcpOptionWinScale::GetScale (void) const
+{
+  NS_ASSERT (m_scale <= 14);
+
+  return m_scale;
+}
+
+void
+TcpOptionWinScale::SetScale (uint8_t scale)
+{
+  NS_ASSERT (scale <= 14);
+
+  m_scale = scale;
+}
+
+} // namespace ns3