New git repository for release - version 0.2.0 tagged

node/Network.cpp

@@ -0,0 +1,80 @@
+/*
+ * 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 "Network.hpp"
+#include "Switch.hpp"
+
+namespace ZeroTier {
+
+Network::Network(const RuntimeEnvironment *renv,uint64_t id)
+	throw(std::runtime_error) :
+	Thread(),
+	_r(renv),
+	_id(id),
+	_tap(renv,renv->identity.address().toMAC(),ZT_IF_MTU),
+	_members(),
+	_open(false),
+	_lock()
+{
+	TRACE("new network %llu created, TAP device: %s",id,_tap.deviceName().c_str());
+	start();
+}
+
+Network::~Network()
+{
+	_tap.close();
+	join();
+	TRACE("network %llu (%s) closed",_id,_tap.deviceName().c_str());
+}
+
+void Network::main()
+	throw()
+{
+	Buffer<4096> buf;
+	MAC from,to;
+	unsigned int etherType = 0;
+
+	while (_tap.open()) {
+		unsigned int len = _tap.get(from,to,etherType,buf.data());
+		if (len) {
+			buf.setSize(len);
+			try {
+				if (!*__refCount)
+					break; // sanity check
+				_r->sw->onLocalEthernet(SharedPtr<Network>(this),from,to,etherType,buf);
+			} catch (std::exception &exc) {
+				TRACE("unexpected exception handling local packet: %s",exc.what());
+			} catch ( ... ) {
+				TRACE("unexpected exception handling local packet");
+			}
+		} else break;
+	}
+
+	TRACE("network %llu thread terminating",_id);
+}
+
+} // namespace ZeroTier