mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-22 14:22:23 +00:00
123 lines
3.8 KiB
C++
123 lines
3.8 KiB
C++
/*
|
|
* ZeroTier One - Network Virtualization Everywhere
|
|
* Copyright (C) 2011-2015 ZeroTier, Inc.
|
|
*
|
|
* 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 "Constants.hpp"
|
|
#include "RuntimeEnvironment.hpp"
|
|
#include "OutboundMulticast.hpp"
|
|
#include "Switch.hpp"
|
|
#include "Network.hpp"
|
|
#include "CertificateOfMembership.hpp"
|
|
#include "Node.hpp"
|
|
|
|
namespace ZeroTier {
|
|
|
|
void OutboundMulticast::init(
|
|
const RuntimeEnvironment *RR,
|
|
uint64_t timestamp,
|
|
uint64_t nwid,
|
|
const CertificateOfMembership *com,
|
|
unsigned int limit,
|
|
unsigned int gatherLimit,
|
|
const MAC &src,
|
|
const MulticastGroup &dest,
|
|
unsigned int etherType,
|
|
const void *payload,
|
|
unsigned int len)
|
|
{
|
|
_timestamp = timestamp;
|
|
_nwid = nwid;
|
|
_limit = limit;
|
|
|
|
uint8_t flags = 0;
|
|
if (gatherLimit) flags |= 0x02;
|
|
if (src) flags |= 0x04;
|
|
|
|
/*
|
|
TRACE(">>MC %.16llx INIT %.16llx/%s limit %u gatherLimit %u from %s to %s length %u com==%d",
|
|
(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,
|
|
(com) ? 1 : 0);
|
|
*/
|
|
|
|
_packetNoCom.setSource(RR->identity.address());
|
|
_packetNoCom.setVerb(Packet::VERB_MULTICAST_FRAME);
|
|
_packetNoCom.append((uint64_t)nwid);
|
|
_packetNoCom.append(flags);
|
|
if (gatherLimit) _packetNoCom.append((uint32_t)gatherLimit);
|
|
if (src) src.appendTo(_packetNoCom);
|
|
dest.mac().appendTo(_packetNoCom);
|
|
_packetNoCom.append((uint32_t)dest.adi());
|
|
_packetNoCom.append((uint16_t)etherType);
|
|
_packetNoCom.append(payload,len);
|
|
_packetNoCom.compress();
|
|
|
|
if (com) {
|
|
_haveCom = true;
|
|
flags |= 0x01;
|
|
|
|
_packetWithCom.setSource(RR->identity.address());
|
|
_packetWithCom.setVerb(Packet::VERB_MULTICAST_FRAME);
|
|
_packetWithCom.append((uint64_t)nwid);
|
|
_packetWithCom.append(flags);
|
|
com->serialize(_packetWithCom);
|
|
if (gatherLimit) _packetWithCom.append((uint32_t)gatherLimit);
|
|
if (src) src.appendTo(_packetWithCom);
|
|
dest.mac().appendTo(_packetWithCom);
|
|
_packetWithCom.append((uint32_t)dest.adi());
|
|
_packetWithCom.append((uint16_t)etherType);
|
|
_packetWithCom.append(payload,len);
|
|
_packetWithCom.compress();
|
|
} else _haveCom = false;
|
|
}
|
|
|
|
void OutboundMulticast::sendOnly(const RuntimeEnvironment *RR,const Address &toAddr)
|
|
{
|
|
if (_haveCom) {
|
|
SharedPtr<Network> network(RR->node->network(_nwid));
|
|
if ((network)&&(network->peerNeedsOurMembershipCertificate(toAddr,RR->node->now()))) {
|
|
_packetWithCom.newInitializationVector();
|
|
_packetWithCom.setDestination(toAddr);
|
|
//TRACE(">>MC %.16llx -> %s (with COM)",(unsigned long long)this,toAddr.toString().c_str());
|
|
RR->sw->send(_packetWithCom,true,_nwid);
|
|
return;
|
|
}
|
|
}
|
|
|
|
//TRACE(">>MC %.16llx -> %s (without COM)",(unsigned long long)this,toAddr.toString().c_str());
|
|
_packetNoCom.newInitializationVector();
|
|
_packetNoCom.setDestination(toAddr);
|
|
RR->sw->send(_packetNoCom,true,_nwid);
|
|
}
|
|
|
|
} // namespace ZeroTier
|