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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) 2007-2009 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 as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* 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 <boost/bind.hpp>
#include "datatypes.h"
#include "packetSource.h"
#include "log.h"
#include "resolver.h"
#include "options.h"
#include "signalController.h"
void PacketSource::waitUntilReady()
{
ready_sem_.down();
}
UDPPacketSource::UDPPacketSource(std::string localaddr, std::string port) : sock_(io_service_)
{
gResolver.resolveUdp(localaddr, port, boost::bind(&UDPPacketSource::onResolve, this, _1), boost::bind(&UDPPacketSource::onError, this, _1), gOpt.getResolvAddrType());
}
void UDPPacketSource::onResolve(const boost::asio::ip::udp::endpoint& e)
{
cLog.msg(Log::PRIO_NOTICE) << "opening socket: " << e;
sock_.open(e.protocol());
sock_.bind(e);
ready_sem_.up();
}
void UDPPacketSource::onError(const std::runtime_error& e)
{
gSignalController.inject(SIGERROR, e.what());
}
u_int32_t UDPPacketSource::recv(u_int8_t* buf, u_int32_t len, PacketSourceEndpoint& remote)
{
return static_cast<u_int32_t>(sock_.receive_from(boost::asio::buffer(buf, len), remote));
}
void UDPPacketSource::send(u_int8_t* buf, u_int32_t len, PacketSourceEndpoint remote)
{
sock_.send_to(boost::asio::buffer(buf, len), remote);
}
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