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

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This commit is contained in:
dergoegge 2022-11-28 16:34:50 +00:00
parent 38d06e1561
commit 845e3a34c4
1 changed files with 9 additions and 2 deletions
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11
src/net_processing.cpp
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@ -295,7 +295,7 @@ struct Peer {
std::atomic<std::chrono::seconds> m_last_mempool_req{0s};
/** The next time after which we will send an `inv` message containing
* transaction announcements to this peer. */
std::chrono::microseconds m_next_inv_send_time GUARDED_BY(NetEventsInterface::g_msgproc_mutex){0};
std::chrono::microseconds m_next_inv_send_time GUARDED_BY(m_tx_inventory_mutex){0};
/** Minimum fee rate with which to filter transaction announcements to this node. See BIP133. */
std::atomic<CAmount> m_fee_filter_received{0};
@ -2011,8 +2011,15 @@ void PeerManagerImpl::RelayTransaction(const uint256& txid, const uint256& wtxid
auto tx_relay = peer.GetTxRelay();
if (!tx_relay) continue;
const uint256& hash{peer.m_wtxid_relay ? wtxid : txid};
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)) {
tx_relay->m_tx_inventory_to_send.insert(hash);
}