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Ban peers with stuck or lagging monerod

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SChernykh 2022-04-23 11:29:17 +02:00
parent 2a77695832
commit b2f86a5f6b
2 changed files with 17 additions and 1 deletions
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17
src/p2p_server.cpp
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@ -1030,6 +1030,7 @@ P2PServer::P2PClient::P2PClient()
, m_peerListPendingRequests(0) , m_peerListPendingRequests(0)
, m_pingTime(0) , m_pingTime(0)
, m_blockPendingRequests(0) , m_blockPendingRequests(0)
, m_chainTipBlockRequest(false)
, m_lastAlive(0) , m_lastAlive(0)
, m_lastBroadcastTimestamp(0) , m_lastBroadcastTimestamp(0)
, m_lastBlockrequestTimestamp(0) , m_lastBlockrequestTimestamp(0)
@ -1059,6 +1060,7 @@ void P2PServer::P2PClient::reset()
m_peerListPendingRequests = 0; m_peerListPendingRequests = 0;
m_pingTime = 0; m_pingTime = 0;
m_blockPendingRequests = 0; m_blockPendingRequests = 0;
m_chainTipBlockRequest = false;
m_lastAlive = 0; m_lastAlive = 0;
m_lastBroadcastTimestamp = 0; m_lastBroadcastTimestamp = 0;
m_lastBlockrequestTimestamp = 0; m_lastBlockrequestTimestamp = 0;
@ -1642,6 +1644,7 @@ void P2PServer::P2PClient::on_after_handshake(uint8_t* &p)
p += HASH_SIZE; p += HASH_SIZE;
++m_blockPendingRequests; ++m_blockPendingRequests;
m_chainTipBlockRequest = true;
m_lastBroadcastTimestamp = seconds_since_epoch(); m_lastBroadcastTimestamp = seconds_since_epoch();
} }
@ -1714,6 +1717,18 @@ bool P2PServer::P2PClient::on_block_response(const uint8_t* buf, uint32_t size)
return false; return false;
} }
if (m_chainTipBlockRequest) {
m_chainTipBlockRequest = false;
const uint64_t peer_height = server->m_block->m_txinGenHeight;
const uint64_t our_height = server->m_pool->miner_data().height;
if (peer_height + 2 < our_height) {
LOGWARN(4, "peer " << static_cast<char*>(m_addrString) << " is mining on top of a stale block (mainchain height " << peer_height << ", expected >= " << our_height << ')');
return false;
}
}
return handle_incoming_block_async(server->m_block); return handle_incoming_block_async(server->m_block);
} }
@ -1756,7 +1771,7 @@ bool P2PServer::P2PClient::on_block_broadcast(const uint8_t* buf, uint32_t size)
} }
} }
else { else {
LOGWARN(5, "peer " << static_cast<char*>(m_addrString) << " broadcasted an unreasonably stale block (mainchain height " << peer_height << ", expected >= " << our_height << ')'); LOGWARN(4, "peer " << static_cast<char*>(m_addrString) << " broadcasted an unreasonably stale block (mainchain height " << peer_height << ", expected >= " << our_height << ')');
return false; return false;
} }
} }

1
src/p2p_server.h
View file

@ -117,6 +117,7 @@ public:
int64_t m_pingTime; int64_t m_pingTime;
int m_blockPendingRequests; int m_blockPendingRequests;
bool m_chainTipBlockRequest;
uint64_t m_lastAlive; uint64_t m_lastAlive;
uint64_t m_lastBroadcastTimestamp; uint64_t m_lastBroadcastTimestamp;