dark/zerotiertspu
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Tune NAT-t keepalives so that timing is better obeyed, clean up a build warning, and fix a potential source of network recursion (though harmless).

Browse source
This commit is contained in:
Adam Ierymenko 2015-10-07 11:57:59 -07:00
parent 13f14c2f4c
commit 7d62dbe9f7
3 changed files with 6 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

7
node/Peer.cpp
View file

@ -173,6 +173,7 @@ void Peer::attemptToContactAt(const RuntimeEnvironment *RR,const InetAddress &lo
RR->identity.serialize(outp,false);
atAddress.serialize(outp);
outp.armor(_key,false); // HELLO is sent in the clear
RR->antiRec->logOutgoingZT(outp.data(),outp.size());
RR->node->putPacket(localAddr,atAddress,outp.data(),outp.size());
}
@ -182,12 +183,12 @@ void Peer::doPingAndKeepalive(const RuntimeEnvironment *RR,uint64_t now)
RemotePath *const bestPath = _getBestPath(now);
if (bestPath) {
if ((now - bestPath->lastReceived()) >= ZT_PEER_DIRECT_PING_DELAY) {
TRACE("PING %s(%s)",_id.address().toString().c_str(),bestPath->address().toString().c_str());
TRACE("PING %s(%s) after %llums/%llums send/receive inactivity",_id.address().toString().c_str(),bestPath->address().toString().c_str(),now - bestPath->lastSend(),now - bestPath->lastReceived());
attemptToContactAt(RR,bestPath->localAddress(),bestPath->address(),now);
bestPath->sent(now);
} else if (((now - bestPath->lastSend()) >= ZT_NAT_KEEPALIVE_DELAY)&&(!bestPath->reliable())) {
TRACE("NAT keepalive %s(%s) after %llums/%llums send/receive inactivity",_id.address().toString().c_str(),bestPath->address().toString().c_str(),now - bestPath->lastSend(),now - bestPath->lastReceived());
_natKeepaliveBuf += (uint32_t)((now * 0x9e3779b1) >> 1); // tumble this around to send constantly varying (meaningless) payloads
TRACE("NAT keepalive %s(%s)",_id.address().toString().c_str(),bestPath->address().toString().c_str());
RR->node->putPacket(bestPath->localAddress(),bestPath->address(),&_natKeepaliveBuf,sizeof(_natKeepaliveBuf));
bestPath->sent(now);
}
@ -202,6 +203,8 @@ void Peer::pushDirectPaths(const RuntimeEnvironment *RR,RemotePath *path,uint64_
_lastDirectPathPush = now;
std::vector<Path> dps(RR->node->directPaths());
if (dps.empty())
return;
#ifdef ZT_TRACE
{