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/*
* anytun
*
* The secure anycast tunneling protocol (satp) defines a protocol used
* for communication between any combination of unicast and anycast
* tunnel endpoints. It has less protocol overhead than IPSec in Tunnel
* mode and allows tunneling of every ETHER TYPE protocol (e.g.
* ethernet, ip, arp ...). satp directly includes cryptography and
* message authentication based on the methodes used by SRTP. It is
* intended to deliver a generic, scaleable and secure solution for
* tunneling and relaying of packets of any protocol.
*
*
* Copyright (C) 2007-2008 Othmar Gsenger, Erwin Nindl,
* Christian Pointner <satp@wirdorange.org>
*
* This file is part of Anytun.
*
* Anytun is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* Anytun is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with anytun. If not, see <http://www.gnu.org/licenses/>.
*/
#include <boost/asio.hpp>
#include <sstream>
#include "datatypes.h"
#include "packetSource.h"
#include "buffer.h"
UDPPacketSource::UDPPacketSource(u_int16_t port) : sock_(io_service_)
{
std::stringstream ps;
ps << port;
boost::asio::ip::udp::resolver resolver(io_service_);
boost::asio::ip::udp::resolver::query query(ps.str());
boost::asio::ip::udp::endpoint e = *resolver.resolve(query);
sock_.open(e.protocol());
sock_.bind(e);
}
UDPPacketSource::UDPPacketSource(std::string localaddr, u_int16_t port) : sock_(io_service_)
{
std::stringstream ps;
ps << port;
boost::asio::ip::udp::resolver resolver(io_service_);
boost::asio::ip::udp::resolver::query query(localaddr, ps.str());
boost::asio::ip::udp::endpoint e = *resolver.resolve(query);
sock_.open(e.protocol());
sock_.bind(e);
}
u_int32_t UDPPacketSource::recv(u_int8_t* buf, u_int32_t len, std::string& addr, u_int16_t &port)
{
boost::asio::ip::udp::endpoint e;
u_int32_t rtn = sock_.receive_from(boost::asio::buffer(buf, len), e);
addr = e.address().to_string();
port = e.port();
return rtn;
}
void UDPPacketSource::send(u_int8_t* buf, u_int32_t len, std::string addr, u_int16_t port)
{
std::stringstream ps;
ps << port;
boost::asio::ip::udp::resolver resolver(io_service_);
boost::asio::ip::udp::resolver::query query(addr, ps.str());
boost::asio::ip::udp::endpoint e = *resolver.resolve(query);
sock_.send_to(boost::asio::buffer(buf, len), e);
}
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