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Bugfix: Pass correct virtual size to CheckPackageLimits

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This commit is contained in:
Luke Dashjr 2023-08-26 00:09:16 +00:00 • committed by Greg Sanders
parent 533660c58a
commit bc013fe8e3
3 changed files with 8 additions and 5 deletions
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5
src/txmempool.cpp
View file

@ -197,12 +197,11 @@ util::Result<CTxMemPool::setEntries> CTxMemPool::CalculateAncestorsAndCheckLimit
}
bool CTxMemPool::CheckPackageLimits(const Package& package,
const int64_t total_vsize,
std::string &errString) const
{
CTxMemPoolEntry::Parents staged_ancestors;
int64_t total_size = 0;
for (const auto& tx : package) {
total_size += GetVirtualTransactionSize(*tx);
for (const auto& input : tx->vin) {
std::optional<txiter> piter = GetIter(input.prevout.hash);
if (piter) {
@ -217,7 +216,7 @@ bool CTxMemPool::CheckPackageLimits(const Package& package,
// When multiple transactions are passed in, the ancestors and descendants of all transactions
// considered together must be within limits even if they are not interdependent. This may be
// stricter than the limits for each individual transaction.
const auto ancestors{CalculateAncestorsAndCheckLimits(total_size, package.size(),
const auto ancestors{CalculateAncestorsAndCheckLimits(total_vsize, package.size(),
staged_ancestors, m_limits)};
// It's possible to overestimate the ancestor/descendant totals.
if (!ancestors.has_value()) errString = "possibly " + util::ErrorString(ancestors).original;

2
src/txmempool.h
View file

@ -606,9 +606,11 @@ public:
* @param[in] package Transaction package being evaluated for acceptance
* to mempool. The transactions need not be direct
* ancestors/descendants of each other.
* @param[in] total_vsize Sum of virtual sizes for all transactions in package.
* @param[out] errString Populated with error reason if a limit is hit.
*/
bool CheckPackageLimits(const Package& package,
int64_t total_vsize,
std::string &errString) const EXCLUSIVE_LOCKS_REQUIRED(cs);
/** Populate setDescendants with all in-mempool descendants of hash.

6
src/validation.cpp
View file

@ -634,6 +634,7 @@ private:
// Enforce package mempool ancestor/descendant limits (distinct from individual
// ancestor/descendant limits done in PreChecks).
bool PackageMempoolChecks(const std::vector<CTransactionRef>& txns,
int64_t total_vsize,
PackageValidationState& package_state) EXCLUSIVE_LOCKS_REQUIRED(cs_main, m_pool.cs);
// Run the script checks using our policy flags. As this can be slow, we should
@ -1003,6 +1004,7 @@ bool MemPoolAccept::ReplacementChecks(Workspace& ws)
}
bool MemPoolAccept::PackageMempoolChecks(const std::vector<CTransactionRef>& txns,
const int64_t total_vsize,
PackageValidationState& package_state)
{
AssertLockHeld(cs_main);
@ -1013,7 +1015,7 @@ bool MemPoolAccept::PackageMempoolChecks(const std::vector<CTransactionRef>& txn
{ return !m_pool.exists(GenTxid::Txid(tx->GetHash()));}));
std::string err_string;
if (!m_pool.CheckPackageLimits(txns, err_string)) {
if (!m_pool.CheckPackageLimits(txns, total_vsize, err_string)) {
// This is a package-wide error, separate from an individual transaction error.
return package_state.Invalid(PackageValidationResult::PCKG_POLICY, "package-mempool-limits", err_string);
}
@ -1298,7 +1300,7 @@ PackageMempoolAcceptResult MemPoolAccept::AcceptMultipleTransactions(const std::
// because it's unnecessary. Also, CPFP carve out can increase the limit for individual
// transactions, but this exemption is not extended to packages in CheckPackageLimits().
std::string err_string;
if (txns.size() > 1 && !PackageMempoolChecks(txns, package_state)) {
if (txns.size() > 1 && !PackageMempoolChecks(txns, m_total_vsize, package_state)) {
return PackageMempoolAcceptResult(package_state, std::move(results));
}