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[MOVEONLY] Move processing of orphan queue to ProcessOrphanTx
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@sipa
sipa committed Mar 23, 2019
1 parent 9453018 commit 6e051f3
Showing 1 changed file with 59 additions and 52 deletions.
111 changes: 59 additions & 52 deletions src/net_processing.cpp
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Expand Up @@ -1713,6 +1713,64 @@ bool static ProcessHeadersMessage(CNode *pfrom, CConnman *connman, const std::ve
return true;
}

void static ProcessOrphanTx(CConnman* connman, std::set<uint256>& orphan_work_set, std::list<CTransactionRef>& removed_txn) EXCLUSIVE_LOCKS_REQUIRED(cs_main, g_cs_orphans)
{
AssertLockHeld(cs_main);
AssertLockHeld(g_cs_orphans);
std::set<NodeId> setMisbehaving;
while (!orphan_work_set.empty()) {
const uint256 orphanHash = *orphan_work_set.begin();
orphan_work_set.erase(orphan_work_set.begin());

auto orphan_it = mapOrphanTransactions.find(orphanHash);
if (orphan_it == mapOrphanTransactions.end()) continue;

const CTransactionRef porphanTx = orphan_it->second.tx;
const CTransaction& orphanTx = *porphanTx;
NodeId fromPeer = orphan_it->second.fromPeer;
bool fMissingInputs2 = false;
// Use a dummy CValidationState so someone can't setup nodes to counter-DoS based on orphan
// resolution (that is, feeding people an invalid transaction based on LegitTxX in order to get
// anyone relaying LegitTxX banned)
CValidationState stateDummy;

if (setMisbehaving.count(fromPeer)) continue;
if (AcceptToMemoryPool(mempool, stateDummy, porphanTx, &fMissingInputs2, &removed_txn, false /* bypass_limits */, 0 /* nAbsurdFee */)) {
LogPrint(BCLog::MEMPOOL, " accepted orphan tx %s\n", orphanHash.ToString());
RelayTransaction(orphanTx, connman);
for (unsigned int i = 0; i < orphanTx.vout.size(); i++) {
auto it_by_prev = mapOrphanTransactionsByPrev.find(COutPoint(orphanHash, i));
if (it_by_prev != mapOrphanTransactionsByPrev.end()) {
for (const auto& elem : it_by_prev->second) {
orphan_work_set.insert(elem->first);
}
}
}
EraseOrphanTx(orphanHash);
} else if (!fMissingInputs2) {
int nDos = 0;
if (stateDummy.IsInvalid(nDos) && nDos > 0) {
// Punish peer that gave us an invalid orphan tx
Misbehaving(fromPeer, nDos);
setMisbehaving.insert(fromPeer);
LogPrint(BCLog::MEMPOOL, " invalid orphan tx %s\n", orphanHash.ToString());
}
// Has inputs but not accepted to mempool
// Probably non-standard or insufficient fee
LogPrint(BCLog::MEMPOOL, " removed orphan tx %s\n", orphanHash.ToString());
if (!orphanTx.HasWitness() && !stateDummy.CorruptionPossible()) {
// Do not use rejection cache for witness transactions or
// witness-stripped transactions, as they can have been malleated.
// See https://github.com/bitcoin/bitcoin/issues/8279 for details.
assert(recentRejects);
recentRejects->insert(orphanHash);
}
EraseOrphanTx(orphanHash);
}
mempool.check(pcoinsTip.get());
}
}

bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStream& vRecv, int64_t nTimeReceived, const CChainParams& chainparams, CConnman* connman, const std::atomic<bool>& interruptMsgProc, bool enable_bip61)
{
LogPrint(BCLog::NET, "received: %s (%u bytes) peer=%d\n", SanitizeString(strCommand), vRecv.size(), pfrom->GetId());
Expand Down Expand Up @@ -2384,58 +2442,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
mempool.size(), mempool.DynamicMemoryUsage() / 1000);

// Recursively process any orphan transactions that depended on this one
std::set<NodeId> setMisbehaving;
while (!orphan_work_set.empty()) {
const uint256 orphanHash = *orphan_work_set.begin();
orphan_work_set.erase(orphan_work_set.begin());

auto orphan_it = mapOrphanTransactions.find(orphanHash);
if (orphan_it == mapOrphanTransactions.end()) continue;

const CTransactionRef porphanTx = orphan_it->second.tx;
const CTransaction& orphanTx = *porphanTx;
NodeId fromPeer = orphan_it->second.fromPeer;
bool fMissingInputs2 = false;
// Use a dummy CValidationState so someone can't setup nodes to counter-DoS based on orphan
// resolution (that is, feeding people an invalid transaction based on LegitTxX in order to get
// anyone relaying LegitTxX banned)
CValidationState stateDummy;

if (setMisbehaving.count(fromPeer)) continue;
if (AcceptToMemoryPool(mempool, stateDummy, porphanTx, &fMissingInputs2, &lRemovedTxn, false /* bypass_limits */, 0 /* nAbsurdFee */)) {
LogPrint(BCLog::MEMPOOL, " accepted orphan tx %s\n", orphanHash.ToString());
RelayTransaction(orphanTx, connman);
for (unsigned int i = 0; i < orphanTx.vout.size(); i++) {
auto it_by_prev = mapOrphanTransactionsByPrev.find(COutPoint(orphanHash, i));
if (it_by_prev != mapOrphanTransactionsByPrev.end()) {
for (const auto& elem : it_by_prev->second) {
orphan_work_set.insert(elem->first);
}
}
}
EraseOrphanTx(orphanHash);
} else if (!fMissingInputs2) {
int nDos = 0;
if (stateDummy.IsInvalid(nDos) && nDos > 0) {
// Punish peer that gave us an invalid orphan tx
Misbehaving(fromPeer, nDos);
setMisbehaving.insert(fromPeer);
LogPrint(BCLog::MEMPOOL, " invalid orphan tx %s\n", orphanHash.ToString());
}
// Has inputs but not accepted to mempool
// Probably non-standard or insufficient fee
LogPrint(BCLog::MEMPOOL, " removed orphan tx %s\n", orphanHash.ToString());
if (!orphanTx.HasWitness() && !stateDummy.CorruptionPossible()) {
// Do not use rejection cache for witness transactions or
// witness-stripped transactions, as they can have been malleated.
// See https://github.com/bitcoin/bitcoin/issues/8279 for details.
assert(recentRejects);
recentRejects->insert(orphanHash);
}
EraseOrphanTx(orphanHash);
}
mempool.check(pcoinsTip.get());
}
ProcessOrphanTx(connman, orphan_work_set, lRemovedTxn);
}
else if (fMissingInputs)
{
Expand Down

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