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 anytun.org <satp@wirdorange.org>
  15  *
  16  *  This program is free software; you can redistribute it and/or modify
  17  *  it under the terms of the GNU General Public License version 2
  18  *  as published by the Free Software Foundation.
  19  *
  20  *  This program is distributed in the hope that it will be useful,
  21  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  *  GNU General Public License for more details.
  24  *
  25  *  You should have received a copy of the GNU General Public License
  26  *  along with this program (see the file COPYING included with this
  27  *  distribution); if not, write to the Free Software Foundation, Inc.,
  28  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  29  */
  30
  31 #include "datatypes.h"
  32 #include "buffer.h"
  33 #include "PracticalSocket.h"
  34
  35 class PacketSource
  36 {
  37 public:
  38   virtual ~PacketSource() {}
  39
  40   virtual u_int32_t recv(u_int8_t* buf, u_int32_t len, std::string& addr, u_int16_t &port) = 0;
  41   virtual void send(u_int8_t* buf, u_int32_t len, std::string addr, u_int16_t port) = 0;
  42 };
  43
  44 class UDPPacketSource : public PacketSource, public UDPSocket
  45 {
  46 public:
  47   UDPPacketSource();
  48   UDPPacketSource(u_int16_t port);
  49   UDPPacketSource(std::string localaddr, u_int16_t port);
  50
  51   u_int32_t recv(u_int8_t* buf, u_int32_t len, std::string& addr, u_int16_t &port);
  52   void send(u_int8_t* buf, u_int32_t len, std::string addr, u_int16_t port);
  53 };
  54