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aeonix
2014-06-06 23:54:02 -07:00
parent 380b9a52d1
commit eb3c4e29f5
28 changed files with 2968 additions and 71 deletions
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src/cryptonote_core/blockchain_storage.cpp
+21 -12
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@@ -1506,19 +1506,27 @@ bool blockchain_storage::handle_block_to_main_chain(const block& bl, const crypt
TIME_MEASURE_FINISH(target_calculating_time);
TIME_MEASURE_START(longhash_calculating_time);
crypto::hash proof_of_work = null_hash;
if(!m_checkpoints.is_in_checkpoint_zone(get_current_blockchain_height()))
{
proof_of_work = get_block_longhash(bl, m_blocks.size());
if(!check_hash(proof_of_work, current_diffic))
{
LOG_PRINT_L0("Block with id: " << id << ENDL
<< "have not enough proof of work: " << proof_of_work << ENDL
<< "nexpected difficulty: " << current_diffic );
bvc.m_verifivation_failed = true;
return false;
}
}else
// Formerly the code below contained an if loop with the following condition
// !m_checkpoints.is_in_checkpoint_zone(get_current_blockchain_height())
// however, this caused the daemon to not bother checking PoW for blocks
// before checkpoints, which is very dangerous behaviour. We moved the PoW
// validation out of the next chunk of code to make sure that we correctly
// check PoW now.
proof_of_work = get_block_longhash(bl, m_blocks.size());
if(!check_hash(proof_of_work, current_diffic))
{
LOG_PRINT_L0("Block with id: " << id << ENDL
<< "have not enough proof of work: " << proof_of_work << ENDL
<< "nexpected difficulty: " << current_diffic );
bvc.m_verifivation_failed = true;
return false;
}
// If we're at a checkpoint, ensure that our hardcoded checkpoint hash
// is correct.
if(m_checkpoints.is_in_checkpoint_zone(get_current_blockchain_height()))
{
if(!m_checkpoints.check_block(get_current_blockchain_height(), id))
{
@@ -1527,6 +1535,7 @@ bool blockchain_storage::handle_block_to_main_chain(const block& bl, const crypt
return false;
}
}
TIME_MEASURE_FINISH(longhash_calculating_time);
if(!prevalidate_miner_transaction(bl, m_blocks.size()))