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authorAdam Ierymenko <adam.ierymenko@gmail.com>2013-07-04 16:56:19 -0400
committerAdam Ierymenko <adam.ierymenko@gmail.com>2013-07-04 16:56:19 -0400
commit150850b80012f852521c9935145cf966946334d5 (patch)
treec082369f2fef2515cfa2e4acf1b83250a3963158 /node/Peer.cpp
downloadinfinitytier-150850b80012f852521c9935145cf966946334d5.tar.gz
infinitytier-150850b80012f852521c9935145cf966946334d5.zip
New git repository for release - version 0.2.0 tagged
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+/*
+ * ZeroTier One - Global Peer to Peer Ethernet
+ * Copyright (C) 2012-2013 ZeroTier Networks LLC
+ *
+ * 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/
+ */
+
+#include "Peer.hpp"
+
+namespace ZeroTier {
+
+Peer::Peer() :
+ _dirty(false)
+{
+}
+
+Peer::Peer(const Identity &myIdentity,const Identity &peerIdentity)
+ throw(std::runtime_error) :
+ _id(peerIdentity),
+ _dirty(true)
+{
+ if (!myIdentity.agree(peerIdentity,_keys,sizeof(_keys)))
+ throw std::runtime_error("new peer identity key agreement failed");
+}
+
+void Peer::onReceive(const RuntimeEnvironment *_r,Demarc::Port localPort,const InetAddress &fromAddr,unsigned int latency,unsigned int hops,Packet::Verb verb,uint64_t now)
+{
+ if (!hops) { // direct packet
+ WanPath *wp = (fromAddr.isV4() ? &_ipv4p : &_ipv6p);
+
+ wp->lastReceive = now;
+ if (verb == Packet::VERB_FRAME)
+ wp->lastUnicastFrame = now;
+ if (latency)
+ wp->latency = latency;
+ wp->localPort = localPort;
+ if (!wp->fixed)
+ wp->addr = fromAddr;
+
+ _dirty = true;
+ }
+}
+
+bool Peer::send(const RuntimeEnvironment *_r,const void *data,unsigned int len,bool relay,Packet::Verb verb,uint64_t now)
+{
+ if ((_ipv6p.isActive(now))||((!(_ipv4p.addr))&&(_ipv6p.addr))) {
+ if (_r->demarc->send(_ipv6p.localPort,_ipv6p.addr,data,len,-1)) {
+ _ipv6p.lastSend = now;
+ if (verb == Packet::VERB_FRAME)
+ _ipv6p.lastUnicastFrame = now;
+ _dirty = true;
+ return true;
+ }
+ }
+
+ if (_ipv4p.addr) {
+ if (_r->demarc->send(_ipv4p.localPort,_ipv4p.addr,data,len,-1)) {
+ _ipv4p.lastSend = now;
+ if (verb == Packet::VERB_FRAME)
+ _ipv4p.lastUnicastFrame = now;
+ _dirty = true;
+ return true;
+ }
+ }
+
+ return false;
+}
+
+bool Peer::sendFirewallOpener(const RuntimeEnvironment *_r,uint64_t now)
+{
+ bool sent = false;
+ if (_ipv4p.addr) {
+ if (_r->demarc->send(_ipv4p.localPort,_ipv4p.addr,"\0",1,ZT_FIREWALL_OPENER_HOPS)) {
+ _ipv4p.lastFirewallOpener = now;
+ _dirty = true;
+ sent = true;
+ }
+ }
+ if (_ipv6p.addr) {
+ if (_r->demarc->send(_ipv6p.localPort,_ipv6p.addr,"\0",1,ZT_FIREWALL_OPENER_HOPS)) {
+ _ipv6p.lastFirewallOpener = now;
+ _dirty = true;
+ sent = true;
+ }
+ }
+ return sent;
+}
+
+void Peer::setPathAddress(const InetAddress &addr,bool fixed)
+{
+ if (addr.isV4()) {
+ _ipv4p.addr = addr;
+ _ipv4p.fixed = fixed;
+ _dirty = true;
+ } else if (addr.isV6()) {
+ _ipv6p.addr = addr;
+ _ipv6p.fixed = fixed;
+ _dirty = true;
+ }
+}
+
+void Peer::clearFixedFlag(InetAddress::AddressType t)
+{
+ switch(t) {
+ case InetAddress::TYPE_NULL:
+ _ipv4p.fixed = false;
+ _ipv6p.fixed = false;
+ _dirty = true;
+ break;
+ case InetAddress::TYPE_IPV4:
+ _ipv4p.fixed = false;
+ _dirty = true;
+ break;
+ case InetAddress::TYPE_IPV6:
+ _ipv6p.fixed = false;
+ _dirty = true;
+ break;
+ }
+}
+
+} // namespace ZeroTier