diff options
Diffstat (limited to 'src/net_processing.cpp')
| -rw-r--r-- | src/net_processing.cpp | 30 |
1 files changed, 23 insertions, 7 deletions
diff --git a/src/net_processing.cpp b/src/net_processing.cpp index b48a3bd22..f4ab3aa15 100644 --- a/src/net_processing.cpp +++ b/src/net_processing.cpp @@ -25,9 +25,9 @@ #include <tinyformat.h> #include <txmempool.h> #include <ui_interface.h> -#include <util.h> -#include <utilmoneystr.h> -#include <utilstrencodings.h> +#include <util/system.h> +#include <util/moneystr.h> +#include <util/strencodings.h> #include <memory> @@ -2357,6 +2357,23 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr for (const CTransactionRef& removedTx : lRemovedTxn) AddToCompactExtraTransactions(removedTx); + // If a tx has been detected by recentRejects, we will have reached + // this point and the tx will have been ignored. Because we haven't run + // the tx through AcceptToMemoryPool, we won't have computed a DoS + // score for it or determined exactly why we consider it invalid. + // + // This means we won't penalize any peer subsequently relaying a DoSy + // tx (even if we penalized the first peer who gave it to us) because + // we have to account for recentRejects showing false positives. In + // other words, we shouldn't penalize a peer if we aren't *sure* they + // submitted a DoSy tx. + // + // Note that recentRejects doesn't just record DoSy or invalid + // transactions, but any tx not accepted by the mempool, which may be + // due to node policy (vs. consensus). So we can't blanket penalize a + // peer simply for relaying a tx that our recentRejects has caught, + // regardless of false positives. + int nDoS = 0; if (state.IsInvalid(nDoS)) { @@ -3144,8 +3161,6 @@ void PeerLogicValidation::EvictExtraOutboundPeers(int64_t time_in_seconds) NodeId worst_peer = -1; int64_t oldest_block_announcement = std::numeric_limits<int64_t>::max(); - LOCK(cs_main); - connman->ForEachNode([&](CNode* pnode) { AssertLockHeld(cs_main); @@ -3193,6 +3208,8 @@ void PeerLogicValidation::EvictExtraOutboundPeers(int64_t time_in_seconds) void PeerLogicValidation::CheckForStaleTipAndEvictPeers(const Consensus::Params &consensusParams) { + LOCK(cs_main); + if (connman == nullptr) return; int64_t time_in_seconds = GetTime(); @@ -3200,10 +3217,9 @@ void PeerLogicValidation::CheckForStaleTipAndEvictPeers(const Consensus::Params EvictExtraOutboundPeers(time_in_seconds); if (time_in_seconds > m_stale_tip_check_time) { - LOCK(cs_main); // Check whether our tip is stale, and if so, allow using an extra // outbound peer - if (TipMayBeStale(consensusParams)) { + if (!fImporting && !fReindex && connman->GetNetworkActive() && connman->GetUseAddrmanOutgoing() && TipMayBeStale(consensusParams)) { LogPrintf("Potential stale tip detected, will try using extra outbound peer (last tip update: %d seconds ago)\n", time_in_seconds - g_last_tip_update); connman->SetTryNewOutboundPeer(true); } else if (connman->GetTryNewOutboundPeer()) { |