src/packetSource.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 _PACKET_SOURCE_H_
  33 #define _PACKET_SOURCE_H_
  34
  35 #include <boost/asio.hpp>
  36
  37 #include "datatypes.h"
  38
  39 // TODO: fix this
  40 typedef boost::asio::ip::udp::endpoint PacketSourceEndpoint;
  41
  42 class PacketSource
  43 {
  44 public:
  45   virtual ~PacketSource() {}
  46
  47   virtual u_int32_t recv(u_int8_t* buf, u_int32_t len, PacketSourceEndpoint& remote) = 0;
  48   virtual void send(u_int8_t* buf, u_int32_t len, PacketSourceEndpoint remote) = 0;
  49 };
  50
  51 class UDPPacketSource : public PacketSource
  52 {
  53 public:
  54   typedef boost::asio::ip::udp proto;
  55
  56   UDPPacketSource(std::string port);
  57   UDPPacketSource(std::string localaddr, std::string port);
  58
  59   u_int32_t recv(u_int8_t* buf, u_int32_t len, PacketSourceEndpoint& remote);
  60   void send(u_int8_t* buf, u_int32_t len, PacketSourceEndpoint remote);
  61
  62 private:
  63
  64   boost::asio::io_service io_service_;
  65   proto::socket sock_;
  66 };
  67
  68 #endif