From 96fa3f75508430e735b3d7ab8280011d40f2d74a Mon Sep 17 00:00:00 2001
From: Adam Ierymenko <adam.ierymenko@gmail.com>
Date: Thu, 2 Oct 2014 16:33:08 -0700
Subject: Work on in-place testnet support.

---
 testnet/TestEthernetTap.cpp | 135 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 135 insertions(+)
 create mode 100644 testnet/TestEthernetTap.cpp

(limited to 'testnet/TestEthernetTap.cpp')

diff --git a/testnet/TestEthernetTap.cpp b/testnet/TestEthernetTap.cpp
new file mode 100644
index 00000000..421d6650
--- /dev/null
+++ b/testnet/TestEthernetTap.cpp
@@ -0,0 +1,135 @@
+/*
+ * ZeroTier One - Global Peer to Peer Ethernet
+ * Copyright (C) 2011-2014  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 "TestEthernetTap.hpp"
+#include "TestEthernetTapFactory.hpp"
+#include "../node/Utils.hpp"
+
+namespace ZeroTier {
+
+TestEthernetTap::TestEthernetTap(
+	TestEthernetTapFactory *parent,
+	const MAC &mac,
+	unsigned int mtu,
+	unsigned int metric,
+	uint64_t nwid,
+	const char *desiredDevice,
+	const char *friendlyName,
+	void (*handler)(void *,const MAC &,const MAC &,unsigned int,const Buffer<4096> &),
+	void *arg) :
+	EthernetTap("TestEthernetTap",mac,mtu,metric),
+	_parent(parent),
+	_handler(handler),
+	_arg(arg),
+	_enabled(true)
+{
+	char tmp[64];
+	Utils::snprintf(tmp,sizeof(tmp),"%.16llx",(unsigned long long)nwid);
+	_dev = tmp;
+	_thread = Thread::start(this);
+}
+
+TestEthernetTap::~TestEthernetTap()
+{
+	{
+		Mutex::Lock _l(_pq_m);
+		_pq.push(TestFrame()); // 0-length frame = exit
+	}
+	_pq_c.signal();
+	Thread::join(_thread);
+}
+
+void TestEthernetTap::setEnabled(bool en)
+{
+	_enabled = en;
+}
+
+bool TestEthernetTap::enabled() const
+{
+	return _enabled;
+}
+
+bool TestEthernetTap::addIP(const InetAddress &ip)
+{
+	return true;
+}
+
+bool TestEthernetTap::removeIP(const InetAddress &ip)
+{
+	return true;
+}
+
+std::set<InetAddress> TestEthernetTap::ips() const
+{
+	return std::set<InetAddress>();
+}
+
+void TestEthernetTap::put(const MAC &from,const MAC &to,unsigned int etherType,const void *data,unsigned int len)
+{
+	static Mutex printLock;
+	Mutex::Lock _l(printLock);
+	fprintf(stderr,"%s << %s %.4x %s"ZT_EOL_S,to.toString().c_str(),from.toString().c_str(),etherType,std::string((const char *)data,len).c_str());
+}
+
+std::string TestEthernetTap::deviceName() const
+{
+	return _dev;
+}
+
+void TestEthernetTap::setFriendlyName(const char *friendlyName)
+{
+}
+
+bool TestEthernetTap::updateMulticastGroups(std::set<MulticastGroup> &groups)
+{
+	return false;
+}
+
+void TestEthernetTap::threadMain()
+	throw()
+{
+	TestFrame tf;
+	for(;;) {
+		tf.len = 0;
+		{
+			Mutex::Lock _l(_pq_m);
+			if (!_pq.empty()) {
+				if (_pq.front().len == 0)
+					break;
+				memcpy(&tf,&(_pq.front()),sizeof(tf));
+				_pq.pop();
+			}
+		}
+
+		if ((tf.len > 0)&&(_enabled))
+			_handler(_arg,tf.from,tf.to,ZT_TEST_ETHERNET_ETHERTYPE,Buffer<4096>(tf.data,tf.len));
+
+		_pq_c.wait();
+	}
+}
+
+} // namespace ZeroTier
-- 
cgit v1.2.3