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.
14 * Copyright (C) 2007-2008 Othmar Gsenger, Erwin Nindl,
15 * Christian Pointner <satp@wirdorange.org>
17 * This file is part of Anytun.
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.
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.
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/>.
32 #ifndef _PACKET_SOURCE_H_
33 #define _PACKET_SOURCE_H_
35 #include <boost/asio.hpp>
37 #include "datatypes.h"
38 #include "threadUtils.hpp"
40 // TODO: fix this when other packetSource types are introduced
41 typedef boost::asio::ip::udp::endpoint PacketSourceEndpoint;
46 virtual ~PacketSource() {}
48 virtual u_int32_t recv(u_int8_t* buf, u_int32_t len, PacketSourceEndpoint& remote) = 0;
49 virtual void send(u_int8_t* buf, u_int32_t len, PacketSourceEndpoint remote) = 0;
51 void waitUntilReady();
57 class UDPPacketSource : public PacketSource
60 typedef boost::asio::ip::udp proto;
62 UDPPacketSource(std::string localaddr, std::string port);
64 u_int32_t recv(u_int8_t* buf, u_int32_t len, PacketSourceEndpoint& remote);
65 void send(u_int8_t* buf, u_int32_t len, PacketSourceEndpoint remote);
67 void onResolve(const boost::asio::ip::udp::endpoint& e);
68 void onError(const std::runtime_error& e);
72 boost::asio::io_service io_service_;