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diff --git a/boost/interprocess/permissions.hpp b/boost/interprocess/permissions.hpp
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+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2005-2011. Distributed under the Boost
+// Software License, Version 1.0. (See accompanying file
+// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// See http://www.boost.org/libs/interprocess for documentation.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#ifndef BOOST_INTERPROCESS_PERMISSIONS_HPP
+#define BOOST_INTERPROCESS_PERMISSIONS_HPP
+
+/// @cond
+
+#if defined (_MSC_VER) && (_MSC_VER >= 1200)
+#  pragma once
+#endif
+
+#include <boost/interprocess/detail/config_begin.hpp>
+#include <boost/interprocess/detail/workaround.hpp>
+#include <boost/interprocess/interprocess_fwd.hpp>
+
+#if defined(BOOST_INTERPROCESS_WINDOWS)
+
+#include <boost/interprocess/detail/win32_api.hpp>
+
+#endif
+
+/// @endcond
+
+//!\file
+//!Describes permissions class
+
+namespace boost {
+namespace interprocess {
+
+/// @cond
+
+#if defined(BOOST_INTERPROCESS_WINDOWS)
+
+namespace ipcdetail {
+
+template <int Dummy>
+struct unrestricted_permissions_holder
+{
+   static winapi::interprocess_all_access_security unrestricted;
+};
+
+template<int Dummy>
+winapi::interprocess_all_access_security unrestricted_permissions_holder<Dummy>::unrestricted;
+
+}  //namespace ipcdetail {
+
+#endif   //defined BOOST_INTERPROCESS_WINDOWS
+
+/// @endcond
+
+//!The permissions class represents permissions to be set to shared memory or
+//!files, that can be constructed form usual permission representations:
+//!a SECURITY_ATTRIBUTES pointer in windows or ORed rwx chmod integer in UNIX.
+class permissions
+{
+   /// @cond
+
+   #if defined(BOOST_INTERPROCESS_WINDOWS)
+   typedef void*  os_permissions_type;
+   #else
+   typedef int    os_permissions_type;
+   #endif
+   os_permissions_type  m_perm;
+
+   /// @endcond
+
+   public:
+   //!Constructs a permissions object from a user provided os-dependent
+   //!permissions.
+   permissions(os_permissions_type type)
+      : m_perm(type)
+   {}
+
+   //!Constructs a default permissions object:
+   //!A null security attributes pointer for windows or 0644
+   //!for UNIX.
+   permissions()
+   {  set_default(); }
+
+   //!Sets permissions to default values:
+   //!A null security attributes pointer for windows or 0644
+   //!for UNIX.
+   void set_default()
+   {
+      /// @cond
+      #if defined (BOOST_INTERPROCESS_WINDOWS)
+      m_perm = 0;
+      #else
+      m_perm = 0644;
+      #endif
+      /// @endcond
+   }
+
+   //!Sets permissions to unrestricted access:
+   //!A null DACL for windows or 0666 for UNIX.
+   void set_unrestricted()
+   {
+      /// @cond
+      #if defined (BOOST_INTERPROCESS_WINDOWS)
+      m_perm = &ipcdetail::unrestricted_permissions_holder<0>::unrestricted;
+      #else
+      m_perm = 0666;
+      #endif
+      /// @endcond
+   }
+
+   //!Sets permissions from a user provided os-dependent
+   //!permissions.
+   void set_permissions(os_permissions_type perm)
+   {  m_perm = perm; }
+
+   //!Returns stored os-dependent
+   //!permissions
+   os_permissions_type get_permissions() const
+   {  return m_perm; }
+};
+
+}  //namespace interprocess {
+}  //namespace boost {
+
+#include <boost/interprocess/detail/config_end.hpp>
+
+#endif   //BOOST_INTERPROCESS_PERMISSIONS_HPP
+