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126 lines
3.8 KiB
126 lines
3.8 KiB
/* |
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* ZeroTier One - Network Virtualization Everywhere |
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* Copyright (C) 2011-2015 ZeroTier, Inc. |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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* -- |
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* |
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* ZeroTier may be used and distributed under the terms of the GPLv3, which |
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* are available at: http://www.gnu.org/licenses/gpl-3.0.html |
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* |
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* If you would like to embed ZeroTier into a commercial application or |
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* redistribute it in a modified binary form, please contact ZeroTier Networks |
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* LLC. Start here: http://www.zerotier.com/ |
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*/ |
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#include "Constants.hpp" |
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#include "RuntimeEnvironment.hpp" |
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#include "OutboundMulticast.hpp" |
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#include "Switch.hpp" |
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#include "Network.hpp" |
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#include "CertificateOfMembership.hpp" |
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#include "Node.hpp" |
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namespace ZeroTier { |
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void OutboundMulticast::init( |
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const RuntimeEnvironment *RR, |
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uint64_t timestamp, |
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uint64_t nwid, |
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const CertificateOfMembership *com, |
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unsigned int limit, |
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unsigned int gatherLimit, |
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const MAC &src, |
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const MulticastGroup &dest, |
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unsigned int etherType, |
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const void *payload, |
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unsigned int len) |
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{ |
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_timestamp = timestamp; |
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_nwid = nwid; |
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_limit = limit; |
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uint8_t flags = 0; |
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if (gatherLimit) flags |= 0x02; |
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if (src) flags |= 0x04; |
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/* |
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TRACE(">>MC %.16llx INIT %.16llx/%s limit %u gatherLimit %u from %s to %s length %u com==%d", |
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(unsigned long long)this, |
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nwid, |
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dest.toString().c_str(), |
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limit, |
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gatherLimit, |
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(src) ? src.toString().c_str() : MAC(RR->identity.address(),nwid).toString().c_str(), |
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dest.toString().c_str(), |
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len, |
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(com) ? 1 : 0); |
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*/ |
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_packetNoCom.setSource(RR->identity.address()); |
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_packetNoCom.setVerb(Packet::VERB_MULTICAST_FRAME); |
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_packetNoCom.append((uint64_t)nwid); |
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_packetNoCom.append(flags); |
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if (gatherLimit) _packetNoCom.append((uint32_t)gatherLimit); |
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if (src) src.appendTo(_packetNoCom); |
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dest.mac().appendTo(_packetNoCom); |
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_packetNoCom.append((uint32_t)dest.adi()); |
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_packetNoCom.append((uint16_t)etherType); |
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_packetNoCom.append(payload,len); |
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_packetNoCom.compress(); |
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if (com) { |
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_haveCom = true; |
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flags |= 0x01; |
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_packetWithCom.setSource(RR->identity.address()); |
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_packetWithCom.setVerb(Packet::VERB_MULTICAST_FRAME); |
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_packetWithCom.append((uint64_t)nwid); |
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_packetWithCom.append(flags); |
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com->serialize(_packetWithCom); |
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if (gatherLimit) _packetWithCom.append((uint32_t)gatherLimit); |
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if (src) src.appendTo(_packetWithCom); |
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dest.mac().appendTo(_packetWithCom); |
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_packetWithCom.append((uint32_t)dest.adi()); |
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_packetWithCom.append((uint16_t)etherType); |
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_packetWithCom.append(payload,len); |
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_packetWithCom.compress(); |
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} else _haveCom = false; |
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} |
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void OutboundMulticast::sendOnly(const RuntimeEnvironment *RR,const Address &toAddr) |
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{ |
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SharedPtr<Network> network(RR->node->network(_nwid)); |
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if (!network) |
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return; |
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if (_haveCom) { |
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if (network->peerNeedsOurMembershipCertificate(toAddr,RR->node->now())) { |
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_packetWithCom.newInitializationVector(); |
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_packetWithCom.setDestination(toAddr); |
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//TRACE(">>MC %.16llx -> %s (with COM)",(unsigned long long)this,toAddr.toString().c_str()); |
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RR->sw->send(_packetWithCom,true,_nwid); |
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return; |
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} |
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} |
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//TRACE(">>MC %.16llx -> %s (without COM)",(unsigned long long)this,toAddr.toString().c_str()); |
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_packetNoCom.newInitializationVector(); |
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_packetNoCom.setDestination(toAddr); |
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RR->sw->send(_packetNoCom,true,_nwid); |
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} |
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} // namespace ZeroTier
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