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/*
* ZeroTier One - Network Virtualization Everywhere
* Copyright (C) 2011-2016 ZeroTier, Inc. https://www.zerotier.com/
*
* 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/>.
*/
#ifndef ZT_CLUSTERDEFINITION_HPP
#define ZT_CLUSTERDEFINITION_HPP
#ifdef ZT_ENABLE_CLUSTER
#include <vector>
#include <algorithm>
#include "../node/Constants.hpp"
#include "../node/Utils.hpp"
#include "../node/NonCopyable.hpp"
#include "../osdep/OSUtils.hpp"
#include "ClusterGeoIpService.hpp"
namespace ZeroTier {
/**
* Parser for cluster definition file
*/
class ClusterDefinition : NonCopyable
{
public:
struct MemberDefinition
{
MemberDefinition() : id(0),x(0),y(0),z(0) { name[0] = (char)0; }
unsigned int id;
int x,y,z;
char name[256];
InetAddress clusterEndpoint;
std::vector<InetAddress> zeroTierEndpoints;
};
/**
* Load and initialize cluster definition and GeoIP data if any
*
* @param myAddress My ZeroTier address
* @param pathToClusterFile Path to cluster definition file
* @throws std::runtime_error Invalid cluster definition or unable to load data
*/
ClusterDefinition(uint64_t myAddress,const char *pathToClusterFile)
{
std::string cf;
if (!OSUtils::readFile(pathToClusterFile,cf))
return;
char myAddressStr[64];
Utils::snprintf(myAddressStr,sizeof(myAddressStr),"%.10llx",myAddress);
std::vector<std::string> lines(Utils::split(cf.c_str(),"\r\n","",""));
for(std::vector<std::string>::iterator l(lines.begin());l!=lines.end();++l) {
std::vector<std::string> fields(Utils::split(l->c_str()," \t","",""));
if ((fields.size() < 5)||(fields[0][0] == '#')||(fields[0] != myAddressStr))
continue;
// <address> geo <CSV path> <ip start column> <ip end column> <latitutde column> <longitude column>
if (fields[1] == "geo") {
if ((fields.size() >= 7)&&(OSUtils::fileExists(fields[2].c_str()))) {
int ipStartColumn = Utils::strToInt(fields[3].c_str());
int ipEndColumn = Utils::strToInt(fields[4].c_str());
int latitudeColumn = Utils::strToInt(fields[5].c_str());
int longitudeColumn = Utils::strToInt(fields[6].c_str());
if (_geo.load(fields[2].c_str(),ipStartColumn,ipEndColumn,latitudeColumn,longitudeColumn) <= 0)
throw std::runtime_error(std::string("failed to load geo-ip data from ")+fields[2]);
}
continue;
}
// <address> <ID> <name> <backplane IP/port(s)> <ZT frontplane IP/port(s)> <x,y,z>
int id = Utils::strToUInt(fields[1].c_str());
if ((id < 0)||(id > ZT_CLUSTER_MAX_MEMBERS))
throw std::runtime_error(std::string("invalid cluster member ID: ")+fields[1]);
MemberDefinition &md = _md[id];
md.id = (unsigned int)id;
if (fields.size() >= 6) {
std::vector<std::string> xyz(Utils::split(fields[5].c_str(),",","",""));
md.x = (xyz.size() > 0) ? Utils::strToInt(xyz[0].c_str()) : 0;
md.y = (xyz.size() > 1) ? Utils::strToInt(xyz[1].c_str()) : 0;
md.z = (xyz.size() > 2) ? Utils::strToInt(xyz[2].c_str()) : 0;
}
Utils::scopy(md.name,sizeof(md.name),fields[2].c_str());
md.clusterEndpoint.fromString(fields[3]);
if (!md.clusterEndpoint)
continue;
std::vector<std::string> zips(Utils::split(fields[4].c_str(),",","",""));
for(std::vector<std::string>::iterator zip(zips.begin());zip!=zips.end();++zip) {
InetAddress i;
i.fromString(*zip);
if (i)
md.zeroTierEndpoints.push_back(i);
}
_ids.push_back((unsigned int)id);
}
std::sort(_ids.begin(),_ids.end());
}
/**
* @return All member definitions in this cluster by ID (ID is array index)
*/
inline const MemberDefinition &operator[](unsigned int id) const throw() { return _md[id]; }
/**
* @return Number of members in this cluster
*/
inline unsigned int size() const throw() { return (unsigned int)_ids.size(); }
/**
* @return IDs of members in this cluster sorted by ID
*/
inline const std::vector<unsigned int> &ids() const throw() { return _ids; }
/**
* @return GeoIP service for this cluster
*/
inline ClusterGeoIpService &geo() throw() { return _geo; }
/**
* @return A vector (new copy) containing all cluster members
*/
inline std::vector<MemberDefinition> members() const
{
std::vector<MemberDefinition> m;
for(std::vector<unsigned int>::const_iterator i(_ids.begin());i!=_ids.end();++i)
m.push_back(_md[*i]);
return m;
}
private:
MemberDefinition _md[ZT_CLUSTER_MAX_MEMBERS];
std::vector<unsigned int> _ids;
ClusterGeoIpService _geo;
};
} // namespace ZeroTier
#endif // ZT_ENABLE_CLUSTER
#endif
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