diff options
Diffstat (limited to 'src/main.cpp')
| -rw-r--r-- | src/main.cpp | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/src/main.cpp b/src/main.cpp index 82f9e147ee..c9869d04f9 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -1506,9 +1506,9 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C // SCRIPT_VERIFY_CLEANSTACK requires SCRIPT_VERIFY_WITNESS, so we // need to turn both off, and compare against just turning off CLEANSTACK // to see if the failure is specifically due to witness validation. - if (CheckInputs(tx, state, view, true, scriptVerifyFlags & ~(SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_CLEANSTACK), true, txdata) && + if (tx.wit.IsNull() && CheckInputs(tx, state, view, true, scriptVerifyFlags & ~(SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_CLEANSTACK), true, txdata) && !CheckInputs(tx, state, view, true, scriptVerifyFlags & ~SCRIPT_VERIFY_CLEANSTACK, true, txdata)) { - // Only the witness is wrong, so the transaction itself may be fine. + // Only the witness is missing, so the transaction itself may be fine. state.SetCorruptionPossible(); } return false; @@ -2399,6 +2399,7 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin // Start enforcing WITNESS rules using versionbits logic. if (IsWitnessEnabled(pindex->pprev, chainparams.GetConsensus())) { flags |= SCRIPT_VERIFY_WITNESS; + flags |= SCRIPT_VERIFY_NULLDUMMY; } int64_t nTime2 = GetTimeMicros(); nTimeForks += nTime2 - nTime1; @@ -5505,7 +5506,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, else if (!fMissingInputs2) { int nDos = 0; - if (stateDummy.IsInvalid(nDos) && nDos > 0 && (!state.CorruptionPossible() || State(fromPeer)->fHaveWitness)) + if (stateDummy.IsInvalid(nDos) && nDos > 0) { // Punish peer that gave us an invalid orphan tx Misbehaving(fromPeer, nDos); @@ -5516,7 +5517,10 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, // Probably non-standard or insufficient fee/priority LogPrint("mempool", " removed orphan tx %s\n", orphanHash.ToString()); vEraseQueue.push_back(orphanHash); - if (!stateDummy.CorruptionPossible()) { + if (orphanTx.wit.IsNull() && !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); } @@ -5554,7 +5558,10 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, LogPrint("mempool", "not keeping orphan with rejected parents %s\n",tx.GetHash().ToString()); } } else { - if (!state.CorruptionPossible()) { + if (tx.wit.IsNull() && !state.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(tx.GetHash()); } @@ -5586,9 +5593,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, if (state.GetRejectCode() < REJECT_INTERNAL) // Never send AcceptToMemoryPool's internal codes over P2P pfrom->PushMessage(NetMsgType::REJECT, strCommand, (unsigned char)state.GetRejectCode(), state.GetRejectReason().substr(0, MAX_REJECT_MESSAGE_LENGTH), inv.hash); - if (nDoS > 0 && (!state.CorruptionPossible() || State(pfrom->id)->fHaveWitness)) { - // When a non-witness-supporting peer gives us a transaction that would - // be accepted if witness validation was off, we can't blame them for it. + if (nDoS > 0) { Misbehaving(pfrom->GetId(), nDoS); } } |