void
Peer::recvPeers(StellarMessage const& msg)
{
for (auto peer : msg.peers())
{
stringstream ip;
ip << (int)peer.ip[0] << "." << (int)peer.ip[1] << "."
<< (int)peer.ip[2] << "." << (int)peer.ip[3];
if (peer.port == 0 || peer.port > UINT16_MAX)
{
CLOG(DEBUG, "Overlay") << "ignoring peer with bad port";
continue;
}
PeerRecord pr{ip.str(), static_cast<unsigned short>(peer.port),
mApp.getClock().now(), peer.numFailures, 1};
if (pr.isPrivateAddress())
{
CLOG(DEBUG, "Overlay") << "ignoring flooded private address";
}
else
{
pr.insertIfNew(mApp.getDatabase());
}
}
}
void
Peer::sendPeers()
{
// send top 50 peers we know about
vector<PeerRecord> peerList;
PeerRecord::loadPeerRecords(mApp.getDatabase(), 50, mApp.getClock().now(),
peerList);
StellarMessage newMsg;
newMsg.type(PEERS);
newMsg.peers().resize(xdr::size32(peerList.size()));
for (size_t n = 0; n < peerList.size(); n++)
{
if (!peerList[n].isPrivateAddress())
{
peerList[n].toXdr(newMsg.peers()[n]);
}
}
sendMessage(newMsg);
}
void
Peer::recvPeers(StellarMessage const& msg)
{
const uint32 NEW_PEER_WINDOW_SECONDS = 10;
for (auto const& peer : msg.peers())
{
if (peer.port == 0 || peer.port > UINT16_MAX)
{
CLOG(WARNING, "Overlay") << "ignoring received peer with bad port "
<< peer.port;
continue;
}
if (peer.ip.type() == IPv6)
{
CLOG(WARNING, "Overlay") << "ignoring received IPv6 address"
<< " (not yet supported)";
continue;
}
// randomize when we'll try to connect to this peer next if we don't
// know it
auto defaultNextAttempt =
mApp.getClock().now() +
std::chrono::seconds(std::rand() % NEW_PEER_WINDOW_SECONDS);
stringstream ip;
ip << (int)peer.ip.ipv4()[0] << "." << (int)peer.ip.ipv4()[1] << "."
<< (int)peer.ip.ipv4()[2] << "." << (int)peer.ip.ipv4()[3];
// don't use peer.numFailures here as we may have better luck
// (and we don't want to poison our failure count)
PeerRecord pr{ip.str(), static_cast<unsigned short>(peer.port),
defaultNextAttempt, 0};
if (pr.isPrivateAddress())
{
CLOG(WARNING, "Overlay") << "ignoring received private address "
<< pr.toString();
}
else if (pr.isSelfAddressAndPort(getIP(), mApp.getConfig().PEER_PORT))
{
CLOG(WARNING, "Overlay") << "ignoring received self-address "
<< pr.toString();
}
else if (pr.isLocalhost() &&
!mApp.getConfig().ALLOW_LOCALHOST_FOR_TESTING)
{
CLOG(WARNING, "Overlay") << "ignoring received localhost";
}
else
{
pr.insertIfNew(mApp.getDatabase());
}
}
}
void
Peer::sendPeers()
{
// send top 50 peers we know about
vector<PeerRecord> peerList;
PeerRecord::loadPeerRecords(mApp.getDatabase(), 50, mApp.getClock().now(),
peerList);
StellarMessage newMsg;
newMsg.type(PEERS);
newMsg.peers().reserve(peerList.size());
for (auto const& pr : peerList)
{
if (pr.isPrivateAddress() ||
pr.isSelfAddressAndPort(getIP(), mRemoteListeningPort))
{
continue;
}
PeerAddress pa;
pr.toXdr(pa);
newMsg.peers().push_back(pa);
}
sendMessage(newMsg);
}
void
Peer::recvPeers(StellarMessage const& msg)
{
for (auto const& peer : msg.peers())
{
if (peer.port == 0 || peer.port > UINT16_MAX)
{
CLOG(WARNING, "Overlay") << "ignoring received peer with bad port "
<< peer.port;
continue;
}
if (peer.ip.type() == IPv6)
{
CLOG(WARNING, "Overlay") << "ignoring received IPv6 address"
<< " (not yet supported)";
continue;
}
stringstream ip;
ip << (int)peer.ip.ipv4()[0] << "." << (int)peer.ip.ipv4()[1] << "."
<< (int)peer.ip.ipv4()[2] << "." << (int)peer.ip.ipv4()[3];
PeerRecord pr{ip.str(), static_cast<unsigned short>(peer.port),
mApp.getClock().now(), peer.numFailures};
if (pr.isPrivateAddress())
{
CLOG(WARNING, "Overlay") << "ignoring received private address "
<< pr.toString();
}
else if (pr.isSelfAddressAndPort(getIP(), mApp.getConfig().PEER_PORT))
{
CLOG(WARNING, "Overlay") << "ignoring received self-address "
<< pr.toString();
}
else
{
pr.insertIfNew(mApp.getDatabase());
}
}
}
