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net: limit BIP37 filter lifespan (active between 'filterload' and 'filterclear')

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Previously, a default match-everything bloom filter was set for every peer,
i.e. even before receiving a 'filterload' message and after receiving a
'filterclear' message code branches checking for the existence of the filter
by testing the pointer "pfilter" were _always_ executed.
This commit is contained in:
Sebastian Falbesoner 2020-04-06 17:34:07 +02:00
parent 661bd5dea3
commit 5eae034996
2 changed files with 2 additions and 3 deletions
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2
src/net_processing.cpp
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@ -3198,7 +3198,7 @@ bool ProcessMessage(CNode* pfrom, const std::string& msg_type, CDataStream& vRec
}
LOCK(pfrom->m_tx_relay->cs_filter);
if (pfrom->GetLocalServices() & NODE_BLOOM) {
pfrom->m_tx_relay->pfilter.reset(new CBloomFilter());
pfrom->m_tx_relay->pfilter = nullptr;
}
pfrom->m_tx_relay->fRelayTxes = true;
return true;