dynamic loading of network stack no longer needed1.0.0

1 files changed, 103 insertions, 0 deletions

diff --git a/zto/node/OutboundMulticast.cpp b/zto/node/OutboundMulticast.cpp
new file mode 100644
index 0000000..285bfa5
--- /dev/null
+++ b/zto/node/OutboundMulticast.cpp
@@ -0,0 +1,103 @@
+/*
+ * ZeroTier One - Network Virtualization Everywhere
+ * Copyright (C) 2011-2016  ZeroTier, Inc.  https://www.zerotier.com/
+ *
+ * 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/>.
+ */
+
+#include "Constants.hpp"
+#include "RuntimeEnvironment.hpp"
+#include "OutboundMulticast.hpp"
+#include "Switch.hpp"
+#include "Network.hpp"
+#include "Node.hpp"
+#include "Peer.hpp"
+#include "Topology.hpp"
+
+namespace ZeroTier {
+
+void OutboundMulticast::init(
+	const RuntimeEnvironment *RR,
+	uint64_t timestamp,
+	uint64_t nwid,
+	bool disableCompression,
+	unsigned int limit,
+	unsigned int gatherLimit,
+	const MAC &src,
+	const MulticastGroup &dest,
+	unsigned int etherType,
+	const void *payload,
+	unsigned int len)
+{
+	uint8_t flags = 0;
+
+	_timestamp = timestamp;
+	_nwid = nwid;
+	if (src) {
+		_macSrc = src;
+		flags |= 0x04;
+	} else {
+		_macSrc.fromAddress(RR->identity.address(),nwid);
+	}
+	_macDest = dest.mac();
+	_limit = limit;
+	_frameLen = (len < ZT_MAX_MTU) ? len : ZT_MAX_MTU;
+	_etherType = etherType;
+
+	if (gatherLimit) flags |= 0x02;
+
+	/*
+	TRACE(">>MC %.16llx INIT %.16llx/%s limit %u gatherLimit %u from %s to %s length %u",
+		(unsigned long long)this,
+		nwid,
+		dest.toString().c_str(),
+		limit,
+		gatherLimit,
+		(src) ? src.toString().c_str() : MAC(RR->identity.address(),nwid).toString().c_str(),
+		dest.toString().c_str(),
+		len);
+	*/
+
+	_packet.setSource(RR->identity.address());
+	_packet.setVerb(Packet::VERB_MULTICAST_FRAME);
+	_packet.append((uint64_t)nwid);
+	_packet.append(flags);
+	if (gatherLimit) _packet.append((uint32_t)gatherLimit);
+	if (src) src.appendTo(_packet);
+	dest.mac().appendTo(_packet);
+	_packet.append((uint32_t)dest.adi());
+	_packet.append((uint16_t)etherType);
+	_packet.append(payload,_frameLen);
+	if (!disableCompression)
+		_packet.compress();
+
+	memcpy(_frameData,payload,_frameLen);
+}
+
+void OutboundMulticast::sendOnly(const RuntimeEnvironment *RR,void *tPtr,const Address &toAddr)
+{
+	const SharedPtr<Network> nw(RR->node->network(_nwid));
+	const Address toAddr2(toAddr);
+	if ((nw)&&(nw->filterOutgoingPacket(tPtr,true,RR->identity.address(),toAddr2,_macSrc,_macDest,_frameData,_frameLen,_etherType,0))) {
+		//TRACE(">>MC %.16llx -> %s",(unsigned long long)this,toAddr.toString().c_str());
+		_packet.newInitializationVector();
+		_packet.setDestination(toAddr2);
+		RR->node->expectReplyTo(_packet.packetId());
+
+		Packet tmp(_packet); // make a copy of packet so as not to garble the original -- GitHub issue #461
+		RR->sw->send(tPtr,tmp,true);
+	}
+}
+
+} // namespace ZeroTier