diff options
| -rw-r--r-- | src/cryptonote_protocol/cryptonote_protocol_handler.inl | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/cryptonote_protocol/cryptonote_protocol_handler.inl b/src/cryptonote_protocol/cryptonote_protocol_handler.inl index d72bdbae2..ef437bdf6 100644 --- a/src/cryptonote_protocol/cryptonote_protocol_handler.inl +++ b/src/cryptonote_protocol/cryptonote_protocol_handler.inl @@ -979,8 +979,18 @@ namespace cryptonote int t_cryptonote_protocol_handler<t_core>::handle_notify_new_transactions(int command, NOTIFY_NEW_TRANSACTIONS::request& arg, cryptonote_connection_context& context) { MLOG_P2P_MESSAGE("Received NOTIFY_NEW_TRANSACTIONS (" << arg.txs.size() << " txes)"); + std::unordered_set<blobdata> seen; for (const auto &blob: arg.txs) + { MLOGIF_P2P_MESSAGE(cryptonote::transaction tx; crypto::hash hash; bool ret = cryptonote::parse_and_validate_tx_from_blob(blob, tx, hash);, ret, "Including transaction " << hash); + if (seen.find(blob) != seen.end()) + { + LOG_PRINT_CCONTEXT_L1("Duplicate transaction in notification, dropping connection"); + drop_connection(context, false, false); + return 1; + } + seen.insert(blob); + } if(context.m_state != cryptonote_connection_context::state_normal) return 1; |