mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-19 21:17:52 +00:00
136 lines
4.1 KiB
C++
136 lines
4.1 KiB
C++
/*
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* ZeroTier One - Global Peer to Peer Ethernet
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* Copyright (C) 2011-2015 ZeroTier Networks
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* --
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*
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* ZeroTier may be used and distributed under the terms of the GPLv3, which
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* are available at: http://www.gnu.org/licenses/gpl-3.0.html
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*
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* If you would like to embed ZeroTier into a commercial application or
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* redistribute it in a modified binary form, please contact ZeroTier Networks
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* LLC. Start here: http://www.zerotier.com/
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*/
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#ifndef ZT_NETWORKCONFIGMASTER_HPP
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#define ZT_NETWORKCONFIGMASTER_HPP
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#include "Constants.hpp"
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#define ZT_LOCAL_CONFIG_NETCONF_REDIS_HOST "netconf.redisHost"
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#define ZT_LOCAL_CONFIG_NETCONF_REDIS_PORT "netconf.redisPort"
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#define ZT_LOCAL_CONFIG_NETCONF_REDIS_PORT_DEFAULT 6379
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#define ZT_LOCAL_CONFIG_NETCONF_REDIS_AUTH "netconf.redisAuth"
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#define ZT_LOCAL_CONFIG_NETCONF_REDIS_DBNUM "netconf.redisDatabaseNumber"
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#define ZT_LOCAL_CONFIG_NETCONF_REDIS_DBNUM_DEFAULT 0
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#ifdef ZT_ENABLE_NETCONF_MASTER
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#include <stdint.h>
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#include <string>
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#include <map>
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#include <vector>
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#include "Address.hpp"
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#include "Dictionary.hpp"
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#include "Mutex.hpp"
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#include "InetAddress.hpp"
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#include <hiredis/hiredis.h>
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namespace ZeroTier {
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class RuntimeEnvironment;
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/**
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* Network configuration master -- responds to NETCONF requests
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*
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* This requires the 'hiredis' C library to build.
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*/
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class NetworkConfigMaster
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{
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public:
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/**
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* Create netconf master
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*
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* This doesn't connect to Redis until the first request is received.
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*
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* @param renv Runtime environment
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* @param redisHost Hostname or IP of Redis server
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* @param redisPort Redis IP port number
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* @param redisPassword Redis AUTH password or NULL if none
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* @param redisDatabaseNumber Redis database number (usually 0)
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*/
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NetworkConfigMaster(
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const RuntimeEnvironment *renv,
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const char *redisHost,
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unsigned int redisPort,
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const char *redisPassword,
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unsigned int redisDatabaseNumber);
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~NetworkConfigMaster();
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/**
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* Handle a network config request, sending replies if necessary
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*
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* This is a blocking call, so rate is limited by Redis. It will fail
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* and log its failure if the Redis server is not available or times out.
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*
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* @param fromAddr Originating IP address
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* @param packetId 64-bit packet ID
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* @param member Originating peer ZeroTier address
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* @param nwid 64-bit network ID
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* @param metaData Meta-data bundled with request (empty if none)
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* @param haveTimestamp Timestamp requesting peer has or 0 if none or not included
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*/
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void doNetworkConfigRequest(
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const InetAddress &fromAddr,
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uint64_t packetId,
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const Address &member,
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uint64_t nwid,
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const Dictionary &metaData,
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uint64_t haveTimestamp);
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private:
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// These assume _lock is locked
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bool _reconnect();
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bool _hgetall(const char *key,Dictionary &hdata);
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bool _hmset(const char *key,const Dictionary &hdata);
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bool _hget(const char *key,const char *hashKey,std::string &value);
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bool _hset(const char *key,const char *hashKey,const char *value);
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bool _get(const char *key,std::string &value);
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bool _smembers(const char *key,std::vector<std::string> &sdata);
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bool _initNewMember(uint64_t nwid,const Address &member,const Dictionary &metaData,Dictionary &memberRecord);
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bool _generateNetconf(uint64_t nwid,const Address &member,const Dictionary &metaData,std::string &netconf,uint64_t &ts);
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Mutex _lock;
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std::string _redisHost;
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std::string _redisPassword;
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unsigned int _redisPort;
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unsigned int _redisDatabaseNumber;
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const RuntimeEnvironment *RR;
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redisContext *_rc;
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};
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} // namespace ZeroTier
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#endif // ZT_ENABLE_NETCONF_MASTER
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#endif
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