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Add transaction size limit

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Transactions larger than the limit will not enter the pool
This commit is contained in:
Zachary Michaels 2014-07-17 11:02:05 -04:00
parent 4d25350a82
commit a3f5764869
1 changed files with 24 additions and 0 deletions
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24
src/cryptonote_core/tx_pool.cpp
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@ -22,6 +22,11 @@ DISABLE_VS_WARNINGS(4244 4345 4503) //'boost::foreach_detail_::or_' : decorated
namespace cryptonote namespace cryptonote
{ {
namespace
{
size_t const TRANSACTION_SIZE_LIMIT = (((CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE * 125) / 100) - CRYPTONOTE_COINBASE_BLOB_RESERVED_SIZE);
}
//--------------------------------------------------------------------------------- //---------------------------------------------------------------------------------
tx_memory_pool::tx_memory_pool(blockchain_storage& bchs): m_blockchain(bchs) tx_memory_pool::tx_memory_pool(blockchain_storage& bchs): m_blockchain(bchs)
{ {
@ -54,6 +59,13 @@ namespace cryptonote
return false; return false;
} }
if (!kept_by_block && blob_size >= TRANSACTION_SIZE_LIMIT)
{
LOG_ERROR("transaction is too big: " << blob_size << " bytes, maximum size: " << TRANSACTION_SIZE_LIMIT);
tvc.m_verifivation_failed = true;
return false;
}
//check key images for transaction if it is not kept by block //check key images for transaction if it is not kept by block
if(!kept_by_block) if(!kept_by_block)
{ {
@ -446,6 +458,8 @@ namespace cryptonote
//--------------------------------------------------------------------------------- //---------------------------------------------------------------------------------
bool tx_memory_pool::init(const std::string& config_folder) bool tx_memory_pool::init(const std::string& config_folder)
{ {
CRITICAL_REGION_LOCAL(m_transactions_lock);
m_config_folder = config_folder; m_config_folder = config_folder;
std::string state_file_path = config_folder + "/" + CRYPTONOTE_POOLDATA_FILENAME; std::string state_file_path = config_folder + "/" + CRYPTONOTE_POOLDATA_FILENAME;
boost::system::error_code ec; boost::system::error_code ec;
@ -456,6 +470,16 @@ namespace cryptonote
{ {
LOG_PRINT_L0("Failed to load memory pool from file " << state_file_path); LOG_PRINT_L0("Failed to load memory pool from file " << state_file_path);
} }
for (auto it = m_transactions.begin(); it != m_transactions.end(); ) {
auto it2 = it++;
if (it2->second.blob_size >= TRANSACTION_SIZE_LIMIT) {
LOG_PRINT_L0("Transaction " << get_transaction_hash(it2->second.tx) << " is too big (" << it2->second.blob_size << " bytes), removing it from pool");
remove_transaction_keyimages(it2->second.tx);
m_transactions.erase(it2);
}
}
return res; return res;
} }