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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/>.
*/
#ifndef _DEVICE_CONFIG_HPP_
#define _DEVICE_CONFIG_HPP_
#include "networkAddress.h"
#include <boost/asio.hpp>
class TunDevice;
enum device_type_t { TYPE_UNDEF, TYPE_TUN, TYPE_TAP };
class DeviceConfig
{
public:
DeviceConfig(std::string dev_name ,std::string dev_type, std::string ifcfg_addr, u_int16_t ifcfg_prefix, u_int16_t mtu)
{
mtu_ = mtu;
type_ = TYPE_UNDEF;
#ifndef _MSC_VER
if(dev_type != "") {
if(!dev_type.compare(0,3,"tun"))
type_ = TYPE_TUN;
else if (!dev_type.compare(0,3,"tap"))
type_ = TYPE_TAP;
}
else if(dev_name != "") {
if(!dev_name.compare(0,3,"tun"))
type_ = TYPE_TUN;
else if(!dev_name.compare(0,3,"tap"))
type_ = TYPE_TAP;
}
#else
if(dev_type == "")
throw std::runtime_error("Device type must be specified on Windows");
if(dev_type == "tun")
type_ = TYPE_TUN;
else if(dev_type == "tap")
type_ = TYPE_TAP;
if(type_ == TYPE_TUN && ifcfg_addr == "")
throw std::runtime_error("Device type tun requires ifconfig parameter (--ifconfig)");
#endif
if(ifcfg_addr != "")
addr_.setNetworkAddress(ipv4, ifcfg_addr.c_str());
prefix_ = ifcfg_prefix;
u_int32_t mask = 0;
for(u_int16_t i = 0; i < prefix_; ++i) {
mask = mask >> 1;
mask |= 0x80000000L;
}
netmask_.setNetworkAddress(boost::asio::ip::address_v4(mask));
}
private:
device_type_t type_;
NetworkAddress addr_;
NetworkAddress netmask_;
u_int16_t prefix_;
u_int16_t mtu_;
friend class TunDevice;
};
#endif
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