Merge bitcoin/bitcoin#27559: doc: clarify processing of mempool-msgs when NODE_BLOOM

4581a682d2 clarify processing of mempool-msgs when NODE_BLOOM (0xb10c)

Pull request description:

  Under which circumstances we process received 'mempool' P2P messages caused confusion in #27426. Rather than bike-shedding the formulation of the IF-statement, this adds a comment clarifying when we process the message. Also, correcting the `m_send_mempool` description.

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glozow 2023-05-03 07:56:21 -04:00
commit 8f5da89625
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@ -292,7 +292,8 @@ struct Peer {
* this does not have to be sorted. */
std::set<uint256> m_tx_inventory_to_send GUARDED_BY(m_tx_inventory_mutex);
/** Whether the peer has requested us to send our complete mempool. Only
* permitted if the peer has NetPermissionFlags::Mempool. See BIP35. */
* permitted if the peer has NetPermissionFlags::Mempool or we advertise
* NODE_BLOOM. See BIP35. */
bool m_send_mempool GUARDED_BY(m_tx_inventory_mutex){false};
/** The last time a BIP35 `mempool` request was serviced. */
std::atomic<std::chrono::seconds> m_last_mempool_req{0s};
@ -4600,6 +4601,8 @@ void PeerManagerImpl::ProcessMessage(CNode& pfrom, const std::string& msg_type,
}
if (msg_type == NetMsgType::MEMPOOL) {
// Only process received mempool messages if we advertise NODE_BLOOM
// or if the peer has mempool permissions.
if (!(peer->m_our_services & NODE_BLOOM) && !pfrom.HasPermission(NetPermissionFlags::Mempool))
{
if (!pfrom.HasPermission(NetPermissionFlags::NoBan))