v29.4-roots.4 · Commit 3: [PATCH 03/37] policy: restore conservative relay and network controls
src/policy/policy.cpp
Before: src/policy/policy.cpp · After: src/policy/policy.cpp
File metadata
index 5942747d60999d761aa8ab14c7e8505499b3ac23..cc9c5432d52230bcf2657d81d4bb316c83c233d9 100644
Download original patch · Release notes
Diff rows 401–470 of 470. Line numbers refer to the original before/after files.
+ Added− RemovedUnmarked lines are context.
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src/policy/policy.cpp
CHANGED
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@@ -394,3 +529,97 @@ int64_t GetVirtualTransactionInputSize(const CTxIn& txin, int64_t nSigOpCost, un (continued)
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| 556 |
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| 557 |
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Span stack{txin.scriptWitness.stack};
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| 558 |
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| 559 |
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if (witnessversion == 0 && witnessprogram.size() == WITNESS_V0_SCRIPTHASH_SIZE) {
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| 560 |
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if (stack.empty()) return std::make_pair(CScript(), 0); // invalid
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| 561 |
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auto& script_data = stack.back();
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| 562 |
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prevScript = CScript(script_data.begin(), script_data.end());
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| 563 |
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return std::make_pair(prevScript, 1);
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| 564 |
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}
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| 565 |
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| 566 |
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if (witnessversion == 1 && witnessprogram.size() == WITNESS_V1_TAPROOT_SIZE && !p2sh) {
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| 567 |
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if (stack.size() >= 2 && !stack.back().empty() && stack.back()[0] == ANNEX_TAG) {
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| 568 |
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SpanPopBack(stack);
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| 569 |
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}
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| 570 |
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if (stack.size() >= 2) {
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| 571 |
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SpanPopBack(stack); // Ignore control block
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| 572 |
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prevScript = CScript(stack.back().begin(), stack.back().end());
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| 573 |
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return std::make_pair(prevScript, 1);
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| 574 |
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}
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| 575 |
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}
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| 576 |
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| 577 |
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return std::make_pair(CScript(), 0);
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| 578 |
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}
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| 579 |
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| 580 |
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std::pair<size_t, size_t> DatacarrierBytes(const CTransaction& tx, const CCoinsViewCache& view)
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| 581 |
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{
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| 582 |
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std::pair<size_t, size_t> ret{0, 0};
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| 583 |
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| 584 |
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for (const CTxIn& txin : tx.vin) {
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| 585 |
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const CTxOut &utxo = view.AccessCoin(txin.prevout).out;
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| 586 |
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auto[script, consensus_weight_per_byte] = GetScriptForTransactionInput(utxo.scriptPubKey, txin);
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| 587 |
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const auto dcb = script.DatacarrierBytes(0, &txin.scriptWitness);
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| 588 |
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ret.first += dcb.first;
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ret.second += dcb.second;
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}
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| 591 |
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for (size_t i{tx.vout.size()}; i; ) {
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const CTxOut& txout = tx.vout[--i];
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const auto dcb = txout.scriptPubKey.DatacarrierBytes(tx.vout.size() - i);
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| 594 |
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ret.first += dcb.first;
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ret.second += dcb.second;
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}
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return ret;
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| 599 |
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}
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int32_t CalculateExtraTxWeight(const CTransaction& tx, const CCoinsViewCache& view, const unsigned int weight_per_data_byte)
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| 602 |
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{
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| 603 |
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int64_t mod_weight{0};
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| 604 |
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// Add in any extra weight for data bytes
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| 606 |
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if (weight_per_data_byte > 1) {
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| 607 |
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for (const CTxIn& txin : tx.vin) {
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| 608 |
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const CTxOut &utxo = view.AccessCoin(txin.prevout).out;
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| 609 |
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auto[script, consensus_weight_per_byte] = GetScriptForTransactionInput(utxo.scriptPubKey, txin);
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| 610 |
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if (weight_per_data_byte > consensus_weight_per_byte) {
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| 611 |
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const auto dcb = script.DatacarrierBytes(0, &txin.scriptWitness);
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mod_weight += int64_t(dcb.first + dcb.second) * (weight_per_data_byte - consensus_weight_per_byte);
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}
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}
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if (weight_per_data_byte > WITNESS_SCALE_FACTOR) {
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for (size_t i{tx.vout.size()}; i; ) {
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const CTxOut& txout = tx.vout[--i];
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const auto dcb = txout.scriptPubKey.DatacarrierBytes(tx.vout.size() - i);
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mod_weight += int64_t(dcb.first + dcb.second) * (weight_per_data_byte - WITNESS_SCALE_FACTOR);
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}
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}
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| 622 |
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}
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| 623 |
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return int32_t(std::min(mod_weight, int64_t{std::numeric_limits<int32_t>::max()}));
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| 625 |
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}
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