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Send a VERB_P5_MULTICAST_FRAME to the supernode for each multicast -- for now. This will allow supernodes to echo these down to pre-1.0.0 peers.

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This commit is contained in:
Adam Ierymenko 2014-10-04 13:46:29 -07:00
parent 2c8321be1f
commit 10c196df50
1 changed files with 44 additions and 0 deletions
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44
node/Multicaster.cpp
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@ -35,6 +35,7 @@
#include "Packet.hpp" #include "Packet.hpp"
#include "Peer.hpp" #include "Peer.hpp"
#include "CMWC4096.hpp" #include "CMWC4096.hpp"
#include "C25519.hpp"
#include "CertificateOfMembership.hpp" #include "CertificateOfMembership.hpp"
#include "RuntimeEnvironment.hpp" #include "RuntimeEnvironment.hpp"
@ -207,6 +208,49 @@ void Multicaster::send(
out.sendAndLog(*(RR->sw),m->address); out.sendAndLog(*(RR->sw),m->address);
} }
} }
// DEPRECATED / LEGACY / TODO:
// Currently we also always send a legacy P5_MULTICAST_FRAME packet to our
// supernode. Our supernode then takes care of relaying it down to all <1.0.0
// nodes. This code can go away (along with support for P5_MULTICAST_FRAME)
// once there are no more such nodes on the network.
{
SharedPtr<Peer> sn(RR->topology->getBestSupernode());
if (sn) {
uint32_t rn = RR->prng->next32();
Packet outp(sn->address(),RR->identity.address(),Packet::VERB_P5_MULTICAST_FRAME);
outp.append((uint16_t)0xffff); // do not forward
outp.append((unsigned char)0,320 + 1024); // empty queue and bloom filter
unsigned int signedPortionStart = outp.size();
outp.append((unsigned char)0);
outp.append((uint64_t)nwid);
outp.append((uint16_t)0);
outp.append((unsigned char)0);
outp.append((unsigned char)0);
RR->identity.address().appendTo(outp);
outp.append((const void *)&rn,3); // random multicast ID
src.appendTo(outp);
mg.mac().appendTo(outp);
outp.append((uint32_t)mg.adi());
outp.append((uint16_t)etherType);
outp.append((uint16_t)len);
outp.append(data,len);
unsigned int signedPortionLen = outp.size() - signedPortionStart;
C25519::Signature sig(RR->identity.sign(outp.field(signedPortionStart,signedPortionLen),signedPortionLen));
outp.append((uint16_t)sig.size());
outp.append(sig.data,sig.size());
if (com) com->serialize(outp);
outp.compress();
outp.armor(sn->key(),true);
sn->send(RR,outp.data(),outp.size(),now);
}
}
} }
void Multicaster::clean(uint64_t now) void Multicaster::clean(uint64_t now)