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142 lines
3.2 KiB
142 lines
3.2 KiB
/* |
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* ZeroTier One - Network Virtualization Everywhere |
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* Copyright (C) 2011-2015 ZeroTier, Inc. |
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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_REMOTEPATH_HPP |
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#define ZT_REMOTEPATH_HPP |
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#include <stdint.h> |
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#include <string.h> |
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#include <stdexcept> |
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#include <algorithm> |
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#include "Path.hpp" |
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#include "Node.hpp" |
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#include "AntiRecursion.hpp" |
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#include "RuntimeEnvironment.hpp" |
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namespace ZeroTier { |
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/** |
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* Path to a remote peer |
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* |
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* This extends Path to include status information about path activity. |
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*/ |
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class RemotePath : public Path |
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{ |
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public: |
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RemotePath() : |
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Path(), |
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_lastSend(0), |
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_lastReceived(0), |
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_fixed(false) {} |
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RemotePath(const InetAddress &addr,bool fixed) : |
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Path(addr,0,TRUST_NORMAL), |
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_lastSend(0), |
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_lastReceived(0), |
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_fixed(fixed) {} |
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inline uint64_t lastSend() const throw() { return _lastSend; } |
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inline uint64_t lastReceived() const throw() { return _lastReceived; } |
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/** |
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* @return Is this a fixed path? |
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*/ |
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inline bool fixed() const throw() { return _fixed; } |
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/** |
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* @param f New value of fixed flag |
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*/ |
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inline void setFixed(const bool f) |
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throw() |
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{ |
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_fixed = f; |
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} |
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/** |
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* Called when a packet is sent to this remote path |
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* |
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* This is called automatically by RemotePath::send(). |
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* |
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* @param t Time of send |
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*/ |
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inline void sent(uint64_t t) |
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throw() |
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{ |
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_lastSend = t; |
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} |
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/** |
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* Called when a packet is received from this remote path |
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* |
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* @param t Time of receive |
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*/ |
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inline void received(uint64_t t) |
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throw() |
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{ |
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_lastReceived = t; |
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} |
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/** |
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* @param now Current time |
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* @return True if this path is fixed or has received data in last ACTIVITY_TIMEOUT ms |
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*/ |
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inline bool active(uint64_t now) const |
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throw() |
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{ |
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return ( (_fixed) || ((now - _lastReceived) < ZT_PEER_ACTIVITY_TIMEOUT) ); |
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} |
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/** |
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* Send a packet via this path |
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* |
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* @param RR Runtime environment |
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* @param data Packet data |
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* @param len Packet length |
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* @param now Current time |
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* @return True if transport reported success |
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*/ |
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inline bool send(const RuntimeEnvironment *RR,const void *data,unsigned int len,uint64_t now) |
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{ |
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if (RR->node->putPacket(address(),data,len)) { |
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sent(now); |
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RR->antiRec->logOutgoingZT(data,len); |
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return true; |
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} |
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return false; |
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} |
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private: |
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uint64_t _lastSend; |
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uint64_t _lastReceived; |
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bool _fixed; |
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}; |
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} // namespace ZeroTier |
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#endif
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