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/*
* ZeroTier One - Global Peer to Peer Ethernet
* Copyright (C) 2011-2015 ZeroTier Networks
*
* This program 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
* (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
* --
*
* ZeroTier may be used and distributed under the terms of the GPLv3, which
* are available at: http://www.gnu.org/licenses/gpl-3.0.html
*
* If you would like to embed ZeroTier into a commercial application or
* redistribute it in a modified binary form, please contact ZeroTier Networks
* LLC. Start here: http://www.zerotier.com/
*/
#ifndef ZT_NODECONFIG_HPP
#define ZT_NODECONFIG_HPP
#include <stdint.h>
#include <map>
#include <set>
#include <string>
#include <vector>
#include <stdexcept>
#include "SharedPtr.hpp"
#include "Network.hpp"
#include "Utils.hpp"
#include "Buffer.hpp"
#include "Dictionary.hpp"
namespace ZeroTier {
class RuntimeEnvironment;
/**
* Node configuration endpoint
*/
class NodeConfig
{
public:
/**
* @param renv Runtime environment
* @throws std::runtime_error Unable to initialize or listen for IPC connections
*/
NodeConfig(const RuntimeEnvironment *renv);
~NodeConfig();
/**
* Store something in local configuration cache
*
* By convention, keys starting with _ will not be shown in the command bus
* local config functions.
*
* @param key Configuration key
* @param value Configuration value
*/
void putLocalConfig(const std::string &key,const char *value);
void putLocalConfig(const std::string &key,const std::string &value);
/**
* @param key Configuration key
* @return Value or empty string if not found
*/
std::string getLocalConfig(const std::string &key) const;
/**
* @param nwid Network ID
* @return Network or NULL if no network for that ID
*/
inline SharedPtr<Network> network(uint64_t nwid) const
{
Mutex::Lock _l(_networks_m);
std::map< uint64_t,SharedPtr<Network> >::const_iterator n(_networks.find(nwid));
return ((n == _networks.end()) ? SharedPtr<Network>() : n->second);
}
/**
* @return Vector containing all networks
*/
inline std::vector< SharedPtr<Network> > networks() const
{
std::vector< SharedPtr<Network> > nwlist;
Mutex::Lock _l(_networks_m);
for(std::map< uint64_t,SharedPtr<Network> >::const_iterator n(_networks.begin());n!=_networks.end();++n)
nwlist.push_back(n->second);
return nwlist;
}
/**
* Join a network or return existing network if already joined
*
* @param nwid Network ID to join
* @return New network instance
*/
inline SharedPtr<Network> join(uint64_t nwid)
{
Mutex::Lock _l(_networks_m);
SharedPtr<Network> &nw = _networks[nwid];
if (nw)
return nw;
else return (nw = Network::newInstance(RR,this,nwid));
}
/**
* Leave a network
*
* @param nwid Network ID
* @return True if network was left, false if we were not a member of this network
*/
inline bool leave(uint64_t nwid)
{
Mutex::Lock _l(_networks_m);
std::map< uint64_t,SharedPtr<Network> >::iterator n(_networks.find(nwid));
if (n != _networks.end()) {
n->second->destroy();
_networks.erase(n);
return true;
} else return false;
}
/**
* Perform cleanup and possibly persist saved state
*/
void clean();
/**
* @param nwid Network ID
* @return True if this network exists
*/
inline bool hasNetwork(uint64_t nwid)
{
Mutex::Lock _l(_networks_m);
return (_networks.find(nwid) != _networks.end());
}
/**
* @return Sorted vector of network tap device names from our virtual networks (not other taps on system)
*/
inline std::vector<std::string> networkTapDeviceNames() const
{
std::vector<std::string> tapDevs;
Mutex::Lock _l(_networks_m);
for(std::map< uint64_t,SharedPtr<Network> >::const_iterator n(_networks.begin());n!=_networks.end();++n) {
std::string dn(n->second->tapDeviceName());
if (dn.length())
tapDevs.push_back(dn);
}
return tapDevs;
}
private:
void _readLocalConfig();
void _writeLocalConfig();
const RuntimeEnvironment *RR;
Dictionary _localConfig; // persisted as local.conf
Mutex _localConfig_m;
std::map< uint64_t,SharedPtr<Network> > _networks; // persisted in networks.d/
Mutex _networks_m;
};
} // namespace ZeroTier
#endif
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