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[net processing] Ensure transaction announcements are only queued for fully connected peers

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Github-Pull: #26569
Rebased-From: 845e3a34c4
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dergoegge 2022-11-28 16:34:50 +00:00 • committed by fanquake
parent 95fded1069
commit e15b306017
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1 changed files with 8 additions and 1 deletions
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9
src/net_processing.cpp
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@ -2007,8 +2007,15 @@ void PeerManagerImpl::RelayTransaction(const uint256& txid, const uint256& wtxid
auto tx_relay = peer.GetTxRelay(); auto tx_relay = peer.GetTxRelay();
if (!tx_relay) continue; if (!tx_relay) continue;
const uint256& hash{peer.m_wtxid_relay ? wtxid : txid};
LOCK(tx_relay->m_tx_inventory_mutex); LOCK(tx_relay->m_tx_inventory_mutex);
// Only queue transactions for announcement once the version handshake
// is completed. The time of arrival for these transactions is
// otherwise at risk of leaking to a spy, if the spy is able to
// distinguish transactions received during the handshake from the rest
// in the announcement.
if (tx_relay->m_next_inv_send_time == 0s) continue;
const uint256& hash{peer.m_wtxid_relay ? wtxid : txid};
if (!tx_relay->m_tx_inventory_known_filter.contains(hash)) { if (!tx_relay->m_tx_inventory_known_filter.contains(hash)) {
tx_relay->m_tx_inventory_to_send.insert(hash); tx_relay->m_tx_inventory_to_send.insert(hash);
} }