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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 "networkPrefix.h"
#include "threadUtils.hpp"
#include "datatypes.h"
#include "routingTable.h"
RoutingTable* RoutingTable::inst = NULL;
Mutex RoutingTable::instMutex;
RoutingTable& gRoutingTable = RoutingTable::instance();
RoutingTable& RoutingTable::instance()
{
Lock lock(instMutex);
static instanceCleaner c;
if(!inst)
inst = new RoutingTable();
return *inst;
}
RoutingTable::RoutingTable()
{
}
RoutingTable::~RoutingTable()
{
}
void RoutingTable::addRoute(const NetworkPrefix & pref,u_int16_t mux )
{
if ( pref.getNetworkAddressType()!=ipv4 && pref.getNetworkAddressType() != ipv6)
return; //TODO add ETHERNET support
Lock lock(mutex_);
std::pair<RoutingMap::iterator, bool> ret = routes_[pref.getNetworkAddressType()].insert(RoutingMap::value_type(pref,mux));
if(!ret.second)
{
routes_[pref.getNetworkAddressType()].erase(ret.first);
routes_[pref.getNetworkAddressType()].insert(RoutingMap::value_type(pref,mux));
}
}
void RoutingTable::delRoute(const NetworkPrefix & pref )
{
Lock lock(mutex_);
routes_[pref.getNetworkAddressType()].erase(routes_[pref.getNetworkAddressType()].find(pref));
}
u_int16_t RoutingTable::getRoute(const NetworkAddress & addr)
{
Lock lock(mutex_);
if (routes_[addr.getNetworkAddressType()].empty())
return 0;
//TODO Routing algorithem isnt working!!!
NetworkPrefix prefix(addr,128);
RoutingMap::iterator it = routes_[addr.getNetworkAddressType()].lower_bound(prefix);
// it--;
if (it!=routes_[addr.getNetworkAddressType()].end())
return it->second;
it=routes_[addr.getNetworkAddressType()].begin();
return it->second;
}
u_int16_t* RoutingTable::getOrNewRoutingTEUnlocked(const NetworkPrefix & addr)
{
RoutingMap::iterator it = routes_[addr.getNetworkAddressType()].find(addr);
if(it!=routes_[addr.getNetworkAddressType()].end())
return &(it->second);
routes_[addr.getNetworkAddressType()].insert(RoutingMap::value_type(addr, 1));
it = routes_[addr.getNetworkAddressType()].find(addr);
return &(it->second);
}
u_int16_t RoutingTable::getCountUnlocked(network_address_type_t type)
{
RoutingMap::iterator it = routes_[type].begin();
u_int16_t routes=0;
for (;it!=routes_[type].end();++it)
routes++;
return routes;
}
RoutingMap::iterator RoutingTable::getBeginUnlocked(network_address_type_t type)
{
return routes_[type].begin();
}
RoutingMap::iterator RoutingTable::getEndUnlocked(network_address_type_t type)
{
return routes_[type].end();
}
void RoutingTable::clear(network_address_type_t type)
{
Lock lock(mutex_);
routes_[type].clear();
}
bool RoutingTable::empty(network_address_type_t type)
{
Lock lock(mutex_);
return routes_[type].empty();
}
Mutex& RoutingTable::getMutex()
{
return mutex_;
}
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