Adam Ierymenko
13 years ago
4 changed files with 225 additions and 23 deletions
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/*
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* ZeroTier One - Global Peer to Peer Ethernet |
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* Copyright (C) 2012-2013 ZeroTier Networks LLC |
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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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#include "NetworkConfig.hpp" |
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namespace ZeroTier { |
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std::set<unsigned int> NetworkConfig::allowedEtherTypes() |
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{ |
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std::set<unsigned int> ets; |
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for(unsigned int i=0;i<sizeof(_etWhitelist);++i) { |
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if (_etWhitelist[i]) { |
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unsigned char b = _etWhitelist[i]; |
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unsigned int et = i * 8; |
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while (b) { |
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if ((b & 1)) |
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ets.insert(et); |
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b >>= 1; |
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++et; |
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} |
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} |
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} |
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return ets; |
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} |
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} // namespace ZeroTier
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@ -0,0 +1,140 @@
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/*
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* ZeroTier One - Global Peer to Peer Ethernet |
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* Copyright (C) 2012-2013 ZeroTier Networks LLC |
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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_NETWORKCONFIG_HPP |
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#define _ZT_NETWORKCONFIG_HPP |
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#include <set> |
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#include <string> |
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#include <stdexcept> |
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#include "Dictionary.hpp" |
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#include "InetAddress.hpp" |
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#include "AtomicCounter.hpp" |
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#include "SharedPtr.hpp" |
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namespace ZeroTier { |
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// These are short to fit in packets with plenty of room to spare
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#define ZT_NETWORKCONFIG_DICT_KEY_ALLOWED_ETHERNET_TYPES "et" |
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#define ZT_NETWORKCONFIG_DICT_KEY_NETWORK_ID "nwid" |
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#define ZT_NETWORKCONFIG_DICT_KEY_TIMESTAMP "ts" |
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#define ZT_NETWORKCONFIG_DICT_KEY_ISSUED_TO "id" |
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#define ZT_NETWORKCONFIG_DICT_KEY_MULTICAST_PREFIX_BITS "mpb" |
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#define ZT_NETWORKCONFIG_DICT_KEY_MULTICAST_DEPTH "md" |
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#define ZT_NETWORKCONFIG_DICT_KEY_ARP_CACHE_TTL "cARP" |
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#define ZT_NETWORKCONFIG_DICT_KEY_NDP_CACHE_TTL "cNDP" |
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#define ZT_NETWORKCONFIG_DICT_KEY_EMULATE_ARP "eARP" |
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#define ZT_NETWORKCONFIG_DICT_KEY_EMULATE_NDP "eNDP" |
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#define ZT_NETWORKCONFIG_DICT_KEY_IS_OPEN "o" |
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#define ZT_NETWORKCONFIG_DICT_KEY_NAME "name" |
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#define ZT_NETWORKCONFIG_DICT_KEY_DESC "desc" |
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#define ZT_NETWORKCONFIG_DICT_KEY_IPV4_STATIC "v4s" |
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#define ZT_NETWORKCONFIG_DICT_KEY_IPV6_STATIC "v6s" |
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#define ZT_NETWORKCONFIG_DICT_KEY_MULTICAST_RATES "mr" |
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/**
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* Network configuration received from netconf master nodes |
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* |
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* This is designed to work as an immutable value object held in a shared |
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* pointer so that it can be both updated and used without too much mutex |
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* boogie. |
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*/ |
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class NetworkConfig |
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{ |
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public: |
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friend class SharedPtr<NetworkConfig>; |
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/**
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* @param d Dictionary containing configuration |
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* @throws std::invalid_argument Invalid configuration |
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*/ |
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NetworkConfig(const Dictionary &d) |
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throw(std::invalid_argument) |
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{ |
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_fromDictionary(d); |
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} |
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/**
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* @param etherType Ethernet frame type to check |
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* @return True if allowed on this network |
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*/ |
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inline bool allowsEtherType(unsigned int etherType) |
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throw() |
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{ |
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if ((!etherType)||(etherType > 0xffff)) // sanity checks
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return false; |
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else if ((_etWhitelist[0] & 1)) // prsence of 0 in set inverts sense: whitelist becomes blacklist
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return (!(_etWhitelist[etherType >> 3] & (1 << (etherType & 7)))); |
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else return ((_etWhitelist[etherType >> 3] & (1 << (etherType & 7)))); |
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} |
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std::set<unsigned int> allowedEtherTypes() const; |
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inline uint64_t networkId() const throw() { return _nwid; } |
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inline uint64_t timestamp() const throw() { return _timestamp; } |
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inline const Address &issuedTo() const throw() { return _issuedTo; } |
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inline unsigned int multicastPrefixBits() const throw() { return _multicastPrefixBits; } |
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inline unsigned int multicastDepth() const throw() { return _multicastDepth; } |
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inline unsigned int arpCacheTtl() const throw() { return _arpCacheTtl; } |
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inline unsigned int ndpCacheTtl() const throw() { return _ndpCacheTtl; } |
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inline bool emulateArp() const throw() { return _emulateArp; } |
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inline bool emulateNdp() const throw() { return _emulateNdp; } |
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inline bool isOpen() const throw() { return _isOpen; } |
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inline const std::string &name() const throw() { return _name; } |
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inline const std::string &description() const throw() { return _description; } |
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inline const std::set<InetAddress> &staticIps() const throw() { return _staticIps; } |
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inline const MulticastRateTable &multicastRates() const throw() { return _multicastRates; } |
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private: |
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NetworkConfig() {} |
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~NetworkConfig() {} |
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void _fromDictionary(const Dictionary &d) |
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throw(std::invalid_argument); |
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unsigned char _etWhitelist[65536 / 8]; |
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uint64_t _nwid; |
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uint64_t _timestamp; |
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Address _issuedTo; |
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unsigned int _multicastPrefixBits; |
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unsigned int _multicastDepth; |
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unsigned int _arpCacheTtl; |
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unsigned int _ndpCacheTtl; |
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bool _emulateArp; |
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bool _emulateNdp; |
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bool _isOpen; |
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std::string _name; |
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std::string _description; |
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std::set<InetAddress> _staticIps; |
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MulticastRateTable _multicastRates; |
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AtomicCounter __refCount; |
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}; |
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} // namespace ZeroTier
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#endif |
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