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blockchain: for v3, require miner tx to have well behaved outs

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This was meant to go in v2, but the miner tx slipped through
the cracks as it doesn't go through the main tx verification
since it doesn't get added to the pool.
This commit is contained in:
moneromooo-monero 2016-03-23 17:56:08 +00:00
parent 97638b1fb7
commit b8527668ff
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GPG Key ID: 686F07454D6CEFC3
2 changed files with 13 additions and 3 deletions
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13
src/cryptonote_core/blockchain.cpp
View File

@ -948,7 +948,7 @@ bool Blockchain::prevalidate_miner_transaction(const block& b, uint64_t height)
} }
//------------------------------------------------------------------ //------------------------------------------------------------------
// This function validates the miner transaction reward // This function validates the miner transaction reward
bool Blockchain::validate_miner_transaction(const block& b, size_t cumulative_block_size, uint64_t fee, uint64_t& base_reward, uint64_t already_generated_coins, bool &partial_block_reward) bool Blockchain::validate_miner_transaction(const block& b, size_t cumulative_block_size, uint64_t fee, uint64_t& base_reward, uint64_t already_generated_coins, bool &partial_block_reward, uint8_t version)
{ {
LOG_PRINT_L3("Blockchain::" << __func__); LOG_PRINT_L3("Blockchain::" << __func__);
//validate reward //validate reward
@ -957,6 +957,15 @@ bool Blockchain::validate_miner_transaction(const block& b, size_t cumulative_bl
money_in_use += o.amount; money_in_use += o.amount;
partial_block_reward = false; partial_block_reward = false;
if (version >= 3) {
for (auto &o: b.miner_tx.vout) {
if (!is_valid_decomposed_amount(o.amount)) {
LOG_PRINT_L1("miner tx output " << print_money(o.amount) << " is not a valid decomposed amount");
return false;
}
}
}
std::vector<size_t> last_blocks_sizes; std::vector<size_t> last_blocks_sizes;
get_last_n_blocks_sizes(last_blocks_sizes, CRYPTONOTE_REWARD_BLOCKS_WINDOW); get_last_n_blocks_sizes(last_blocks_sizes, CRYPTONOTE_REWARD_BLOCKS_WINDOW);
if (!get_block_reward(epee::misc_utils::median(last_blocks_sizes), cumulative_block_size, already_generated_coins, base_reward, get_current_hard_fork_version())) if (!get_block_reward(epee::misc_utils::median(last_blocks_sizes), cumulative_block_size, already_generated_coins, base_reward, get_current_hard_fork_version()))
@ -2698,7 +2707,7 @@ leave:
TIME_MEASURE_START(vmt); TIME_MEASURE_START(vmt);
uint64_t base_reward = 0; uint64_t base_reward = 0;
uint64_t already_generated_coins = m_db->height() ? m_db->get_block_already_generated_coins(m_db->height() - 1) : 0; uint64_t already_generated_coins = m_db->height() ? m_db->get_block_already_generated_coins(m_db->height() - 1) : 0;
if(!validate_miner_transaction(bl, cumulative_block_size, fee_summary, base_reward, already_generated_coins, bvc.m_partial_block_reward)) if(!validate_miner_transaction(bl, cumulative_block_size, fee_summary, base_reward, already_generated_coins, bvc.m_partial_block_reward, m_hardfork->get_current_version()))
{ {
LOG_PRINT_L1("Block with id: " << id << " has incorrect miner transaction"); LOG_PRINT_L1("Block with id: " << id << " has incorrect miner transaction");
bvc.m_verifivation_failed = true; bvc.m_verifivation_failed = true;

3
src/cryptonote_core/blockchain.h
View File

@ -980,10 +980,11 @@ namespace cryptonote
* @param base_reward return-by-reference the new block's generated coins * @param base_reward return-by-reference the new block's generated coins
* @param already_generated_coins the amount of currency generated prior to this block * @param already_generated_coins the amount of currency generated prior to this block
* @param partial_block_reward return-by-reference true if miner accepted only partial reward * @param partial_block_reward return-by-reference true if miner accepted only partial reward
* @param version hard fork version for that transaction
* *
* @return false if anything is found wrong with the miner transaction, otherwise true * @return false if anything is found wrong with the miner transaction, otherwise true
*/ */
bool validate_miner_transaction(const block& b, size_t cumulative_block_size, uint64_t fee, uint64_t& base_reward, uint64_t already_generated_coins, bool &partial_block_reward); bool validate_miner_transaction(const block& b, size_t cumulative_block_size, uint64_t fee, uint64_t& base_reward, uint64_t already_generated_coins, bool &partial_block_reward, uint8_t version);
/** /**
* @brief reverts the blockchain to its previous state following a failed switch * @brief reverts the blockchain to its previous state following a failed switch