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

Deferred decode for HELLO to prevent HELLOcalypse under high load of new peers.

Browse source
This commit is contained in:
Adam Ierymenko 2015-11-05 12:22:58 -08:00
parent a95ff21aaf
commit 8ef4edebbf
12 changed files with 463 additions and 73 deletions
Download patch file Download diff file Expand all files Collapse all files

8
node/Switch.cpp
View file

@ -475,7 +475,7 @@ void Switch::doAnythingWaitingForPeer(const SharedPtr<Peer> &peer)
{ // finish processing any packets waiting on peer's public key / identity
Mutex::Lock _l(_rxQueue_m);
for(std::list< SharedPtr<IncomingPacket> >::iterator rxi(_rxQueue.begin());rxi!=_rxQueue.end();) {
if ((*rxi)->tryDecode(RR))
if ((*rxi)->tryDecode(RR,false))
_rxQueue.erase(rxi++);
else ++rxi;
}
@ -672,7 +672,7 @@ void Switch::_handleRemotePacketFragment(const InetAddress &localAddr,const Inet
packet->append(dq.frags[f - 1].payload(),dq.frags[f - 1].payloadLength());
_defragQueue.erase(pid); // dq no longer valid after this
if (!packet->tryDecode(RR)) {
if (!packet->tryDecode(RR,false)) {
Mutex::Lock _l(_rxQueue_m);
_rxQueue.push_back(packet);
}
@ -746,7 +746,7 @@ void Switch::_handleRemotePacketHead(const InetAddress &localAddr,const InetAddr
packet->append(dq.frags[f - 1].payload(),dq.frags[f - 1].payloadLength());
_defragQueue.erase(pid); // dq no longer valid after this
if (!packet->tryDecode(RR)) {
if (!packet->tryDecode(RR,false)) {
Mutex::Lock _l(_rxQueue_m);
_rxQueue.push_back(packet);
}
@ -757,7 +757,7 @@ void Switch::_handleRemotePacketHead(const InetAddress &localAddr,const InetAddr
} // else this is a duplicate head, ignore
} else {
// Packet is unfragmented, so just process it
if (!packet->tryDecode(RR)) {
if (!packet->tryDecode(RR,false)) {
Mutex::Lock _l(_rxQueue_m);
_rxQueue.push_back(packet);
}