src/packetSource.cpp

   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 #include <boost/asio.hpp>
  33
  34 #include "datatypes.h"
  35 #include "packetSource.h"
  36
  37 UDPPacketSource::UDPPacketSource(std::string port) : sock_(io_service_)
  38 {
  39   proto::resolver resolver(io_service_);
  40   proto::resolver::query query(port);
  41   proto::endpoint e = *resolver.resolve(query);
  42   sock_.open(e.protocol());
  43   sock_.bind(e);
  44 }
  45
  46 UDPPacketSource::UDPPacketSource(std::string localaddr, std::string port) : sock_(io_service_)
  47 {
  48   proto::resolver resolver(io_service_);
  49   proto::resolver::query query(localaddr, port);
  50   proto::endpoint e = *resolver.resolve(query);
  51   sock_.open(e.protocol());
  52   sock_.bind(e);
  53 }
  54
  55 u_int32_t UDPPacketSource::recv(u_int8_t* buf, u_int32_t len, PacketSourceEndpoint& remote)
  56 {
  57   return sock_.receive_from(boost::asio::buffer(buf, len), remote);
  58 }
  59
  60 void UDPPacketSource::send(u_int8_t* buf, u_int32_t len, PacketSourceEndpoint remote)
  61 {
  62   sock_.send_to(boost::asio::buffer(buf, len), remote);
  63 }
  64