src/connectionParam.h

   1 /*
   2  *  anytun
   3  *
   4  *  The secure anycast tunneling protocol (satp) defines a protocol used
   5  *  for communication between any combination of unicast and anycast
   6  *  tunnel endpoints.  It has less protocol overhead than IPSec in Tunnel
   7  *  mode and allows tunneling of every ETHER TYPE protocol (e.g.
   8  *  ethernet, ip, arp ...). satp directly includes cryptography and
   9  *  message authentication based on the methodes used by SRTP.  It is
  10  *  intended to deliver a generic, scaleable and secure solution for
  11  *  tunneling and relaying of packets of any protocol.
  12  *
  13  *
  14  *  Copyright (C) 2007-2008 Othmar Gsenger, Erwin Nindl,
  15  *                          Christian Pointner <satp@wirdorange.org>
  16  *
  17  *  This file is part of Anytun.
  18  *
  19  *  Anytun is free software: you can redistribute it and/or modify
  20  *  it under the terms of the GNU General Public License version 3 as
  21  *  published by the Free Software Foundation.
  22  *
  23  *  Anytun is distributed in the hope that it will be useful,
  24  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  25  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  26  *  GNU General Public License for more details.
  27  *
  28  *  You should have received a copy of the GNU General Public License
  29  *  along with anytun.  If not, see <http://www.gnu.org/licenses/>.
  30  */
  31
  32 #ifndef _CONNECTIONPARAM_H_
  33 #define _CONNECTIONPARAM_H_
  34
  35 #include "keyDerivation.h"
  36 #include "seqWindow.h"
  37 #include "threadUtils.hpp"
  38 #include "packetSource.h"
  39 #include "log.h"
  40
  41 #include <boost/archive/text_oarchive.hpp>
  42 #include <boost/archive/text_iarchive.hpp>
  43
  44 class ConnectionParam
  45 {
  46 public:
  47         ConnectionParam(const ConnectionParam & src);
  48         ConnectionParam( KeyDerivation& kd, SeqWindow& seq_window, seq_nr_t seq_nr_, PacketSourceEndpoint remote_end);
  49
  50   KeyDerivation& kd_;
  51   SeqWindow& seq_window_;
  52         seq_nr_t seq_nr_;
  53         PacketSourceEndpoint remote_end_;
  54
  55 private:
  56   //TODO: check if this is ok
  57         Mutex mutex_;
  58   friend class boost::serialization::access;
  59   template<class Archive>
  60   void serialize(Archive & ar, const unsigned int version)
  61         {
  62                 Lock lock(mutex_);
  63                 std::string remote_host(remote_end_.address().to_string());
  64                 u_int16_t remote_port = remote_end_.port();
  65                 ar & kd_;
  66     ar & seq_window_;
  67     ar & seq_nr_;
  68     ar & remote_host;
  69     ar & remote_port;
  70                 PacketSourceEndpoint emptyEndpoint;
  71                 UDPPacketSource::proto::endpoint endpoint(boost::asio::ip::address::from_string(remote_host), remote_port);
  72                 //This is a workarround, against race condition in sync process
  73                 //TODO: find a better solution
  74                 if (endpoint != emptyEndpoint)
  75                         remote_end_ = endpoint;
  76         }
  77 };
  78
  79 #endif