diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cryptonote_core/tx_pool.cpp | 22 | ||||
| -rw-r--r-- | src/cryptonote_core/tx_pool.h | 6 |
2 files changed, 16 insertions, 12 deletions
diff --git a/src/cryptonote_core/tx_pool.cpp b/src/cryptonote_core/tx_pool.cpp index c49a3dabc..a7b2e4422 100644 --- a/src/cryptonote_core/tx_pool.cpp +++ b/src/cryptonote_core/tx_pool.cpp @@ -210,7 +210,7 @@ namespace cryptonote // TODO: Investigate why not? if(!kept_by_block) { - if(have_tx_keyimges_as_spent(tx)) + if(have_tx_keyimges_as_spent(tx, id)) { mark_double_spend(tx); LOG_PRINT_L1("Transaction with id= "<< id << " used already spent key images"); @@ -253,7 +253,7 @@ namespace cryptonote meta.last_relayed_time = time(NULL); meta.relayed = relayed; meta.set_relay_method(tx_relay); - meta.double_spend_seen = have_tx_keyimges_as_spent(tx); + meta.double_spend_seen = have_tx_keyimges_as_spent(tx, id); meta.pruned = tx.pruned; meta.bf_padding = 0; memset(meta.padding, 0, sizeof(meta.padding)); @@ -1098,30 +1098,32 @@ namespace cryptonote return m_blockchain.get_db().txpool_has_tx(id, tx_category); } //--------------------------------------------------------------------------------- - bool tx_memory_pool::have_tx_keyimges_as_spent(const transaction& tx) const + bool tx_memory_pool::have_tx_keyimges_as_spent(const transaction& tx, const crypto::hash& txid) const { CRITICAL_REGION_LOCAL(m_transactions_lock); CRITICAL_REGION_LOCAL1(m_blockchain); for(const auto& in: tx.vin) { CHECKED_GET_SPECIFIC_VARIANT(in, const txin_to_key, tokey_in, true);//should never fail - if(have_tx_keyimg_as_spent(tokey_in.k_image)) + if(have_tx_keyimg_as_spent(tokey_in.k_image, txid)) return true; } return false; } //--------------------------------------------------------------------------------- - bool tx_memory_pool::have_tx_keyimg_as_spent(const crypto::key_image& key_im) const + bool tx_memory_pool::have_tx_keyimg_as_spent(const crypto::key_image& key_im, const crypto::hash& txid) const { CRITICAL_REGION_LOCAL(m_transactions_lock); - bool spent = false; const auto found = m_spent_key_images.find(key_im); - if (found != m_spent_key_images.end()) + if (found != m_spent_key_images.end() && !found->second.empty()) { - for (const crypto::hash& tx_hash : found->second) - spent |= m_blockchain.txpool_tx_matches_category(tx_hash, relay_category::broadcasted); + // If another tx is using the key image, always return as spent. + // See `insert_key_images`. + if (1 < found->second.size() || *(found->second.cbegin()) != txid) + return true; + return m_blockchain.txpool_tx_matches_category(txid, relay_category::broadcasted); } - return spent; + return false; } //--------------------------------------------------------------------------------- void tx_memory_pool::lock() const diff --git a/src/cryptonote_core/tx_pool.h b/src/cryptonote_core/tx_pool.h index ca0e50415..292d427e2 100644 --- a/src/cryptonote_core/tx_pool.h +++ b/src/cryptonote_core/tx_pool.h @@ -470,10 +470,11 @@ namespace cryptonote * @brief check if a transaction in the pool has a given spent key image * * @param key_im the spent key image to look for + * @param txid hash of the new transaction where `key_im` was seen. * * @return true if the spent key image is present, otherwise false */ - bool have_tx_keyimg_as_spent(const crypto::key_image& key_im) const; + bool have_tx_keyimg_as_spent(const crypto::key_image& key_im, const crypto::hash& txid) const; /** * @brief check if any spent key image in a transaction is in the pool @@ -484,10 +485,11 @@ namespace cryptonote * @note see tx_pool::have_tx_keyimg_as_spent * * @param tx the transaction to check spent key images of + * @param txid hash of `tx`. * * @return true if any spent key images are present in the pool, otherwise false */ - bool have_tx_keyimges_as_spent(const transaction& tx) const; + bool have_tx_keyimges_as_spent(const transaction& tx, const crypto::hash& txid) const; /** * @brief forget a transaction's spent key images |