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Merge pull request #5841 

cae488d p2p: reject incoming connections to self (moneromooo-monero)
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luigi1111 2019-09-08 19:48:09 -05:00
parent 21290005d7 cae488dc9b
commit 86938725ae
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1 changed files with 10 additions and 1 deletions
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11
src/p2p/net_node.inl
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@ -2318,6 +2318,15 @@ namespace nodetool
network_zone& zone = m_network_zones.at(context.m_remote_address.get_zone());
// test only the remote end's zone, otherwise an attacker could connect to you on clearnet
// and pass in a tor connection's peer id, and deduce the two are the same if you reject it
if(arg.node_data.peer_id == zone.m_config.m_peer_id)
{
LOG_DEBUG_CC(context, "Connection to self detected, dropping connection");
drop_connection(context);
return 1;
}
if (zone.m_current_number_of_in_peers >= zone.m_config.m_net_config.max_in_connection_count) // in peers limit
{
LOG_WARNING_CC(context, "COMMAND_HANDSHAKE came, but already have max incoming connections, so dropping this one.");
@ -2344,7 +2353,7 @@ namespace nodetool
context.m_in_timedsync = false;
context.m_rpc_port = arg.node_data.rpc_port;
if(arg.node_data.peer_id != zone.m_config.m_peer_id && arg.node_data.my_port && zone.m_can_pingback)
if(arg.node_data.my_port && zone.m_can_pingback)
{
peerid_type peer_id_l = arg.node_data.peer_id;
uint32_t port_l = arg.node_data.my_port;