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some bug fixes, but still needs work 

There are quite a few debug prints in this commit that will need removed
later, but for posterity (in case someone wants to debug this while I'm
away), I left them in.

Currently errors when syncing on the first block that has a "real"
transaction.  Seems to not be able to validate the ring signature, but I
can't for the life of me figure out what's going wrong.
This commit is contained in:
Thomas Winget 2014-10-28 22:25:03 -04:00 committed by warptangent
parent 006afe2172
commit 1a546e3222
3 changed files with 74 additions and 36 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
src/cryptonote_core/BlockchainDB_impl/db_lmdb.cpp
View File

@ -34,6 +34,8 @@
#include "cryptonote_core/cryptonote_format_utils.h"
#include "crypto/crypto.h"
using epee::string_tools::pod_to_hex;
namespace
{
@ -69,6 +71,14 @@ struct lmdb_cur
bool done;
};
auto compare_uint64 = [](const MDB_val *a, const MDB_val *b) {
uint64_t va = *(uint64_t*)a->mv_data;
uint64_t vb = *(uint64_t*)b->mv_data;
if (va < vb) return -1;
else if (va == vb) return 0;
else return 1;
};
const char* LMDB_BLOCKS = "blocks";
const char* LMDB_BLOCK_TIMESTAMPS = "block_timestamps";
const char* LMDB_BLOCK_HEIGHTS = "block_heights";
@ -418,6 +428,9 @@ void BlockchainLMDB::add_output(const crypto::hash& tx_hash, const tx_out& tx_ou
throw DB_ERROR("Failed to add output global index to db transaction");
}
LOG_PRINT_L0(__func__ << ": amount == " << amount << ", tx_index == " << local_index << "amount_index == " << get_num_outputs(amount) << ", tx_hash == " << pod_to_hex(tx_hash));
m_num_outputs++;
}
void BlockchainLMDB::remove_output(const tx_out& tx_output)
@ -661,6 +674,9 @@ void BlockchainLMDB::open(const std::string& filename)
lmdb_db_open(txn, LMDB_SPENT_KEYS, MDB_CREATE, m_spent_keys, "Failed to open db handle for m_outputs");
mdb_set_dupsort(txn, m_output_amounts, compare_uint64);
mdb_set_dupsort(txn, m_tx_outputs, compare_uint64);
// get and keep current height
MDB_stat db_stats;
if (mdb_stat(txn, m_blocks, &db_stats))
@ -1508,8 +1524,8 @@ tx_out_index BlockchainLMDB::get_output_tx_and_index(const uint64_t& amount, con
auto result = mdb_cursor_get(cur, &k, &v, MDB_SET);
if (result == MDB_NOTFOUND)
{
LOG_PRINT_L1("Attempting to get an output index by amount and amount index, but output not found");
throw OUTPUT_DNE("Attempting to get an output index by amount and amount index, but output not found");
LOG_PRINT_L1("Attempting to get an output index by amount and amount index, but amount not found");
throw OUTPUT_DNE("Attempting to get an output index by amount and amount index, but amount not found");
}
else if (result)
{
@ -1519,6 +1535,7 @@ tx_out_index BlockchainLMDB::get_output_tx_and_index(const uint64_t& amount, con
size_t num_elems = 0;
mdb_cursor_count(cur, &num_elems);
LOG_PRINT_L0(__func__ << ": amount == " << amount << ", index == " << index << ", num_elem for amount == " << num_elems);
if (num_elems <= index)
{
LOG_PRINT_L1("Attempting to get an output index by amount and amount index, but output not found");
@ -1571,6 +1588,8 @@ tx_out_index BlockchainLMDB::get_output_tx_and_index(const uint64_t& amount, con
txn.commit();
LOG_PRINT_L0(__func__ << ": tx_hash == " << pod_to_hex(tx_hash) << " tx_index == " << *(uint64_t*)v.mv_data);
return tx_out_index(tx_hash, *(uint64_t *)v.mv_data);
}

54
src/cryptonote_core/blockchain.cpp
View File

@ -180,6 +180,8 @@ bool Blockchain::scan_outputkeys_for_indexes(const txin_to_key& tx_in_to_key, vi
return false;
}
LOG_PRINT_L0(__func__ << ": amount == " << tx.vout[output_index.second].amount);
// call to the passed boost visitor to grab the public key for the output
if(!vis.handle_output(tx, tx.vout[output_index.second]))
{
@ -496,15 +498,15 @@ bool Blockchain::get_short_chain_history(std::list<crypto::hash>& ids)
CRITICAL_REGION_LOCAL(m_blockchain_lock);
uint64_t i = 0;
uint64_t current_multiplier = 1;
uint64_t sz = m_db->height() - 1;
uint64_t sz = m_db->height();
if(!sz)
return true;
uint64_t current_back_offset = 0;
while(current_back_offset <= sz)
while(current_back_offset < sz)
{
ids.push_back(m_db->get_block_hash_from_height(sz-current_back_offset));
ids.push_back(m_db->get_block_hash_from_height(sz - current_back_offset - 1));
if(i < 10)
{
++current_back_offset;
@ -585,7 +587,7 @@ void Blockchain::get_all_known_block_ids(std::list<crypto::hash> &main, std::lis
LOG_PRINT_L2("Blockchain::" << __func__);
CRITICAL_REGION_LOCAL(m_blockchain_lock);
for (auto& a : m_db->get_hashes_range(0, m_db->height()))
for (auto& a : m_db->get_hashes_range(0, m_db->height() - 1))
{
main.push_back(a);
}
@ -861,13 +863,13 @@ bool Blockchain::validate_miner_transaction(const block& b, size_t cumulative_bl
}
if(base_reward + fee < money_in_use)
{
LOG_ERROR("coinbase transaction spend too much money (" << print_money(money_in_use) << "). Block reward is " << print_money(base_reward + fee) << "(" << print_money(base_reward) << "+" << print_money(fee) << ")");
LOG_ERROR("coinbase transaction spend too much money (" << money_in_use << "). Block reward is " << base_reward + fee << "(" << base_reward << "+" << fee << ")");
return false;
}
if(base_reward + fee != money_in_use)
{
LOG_ERROR("coinbase transaction doesn't use full amount of block reward: spent: "
<< print_money(money_in_use) << ", block reward " << print_money(base_reward + fee) << "(" << print_money(base_reward) << "+" << print_money(fee) << ")");
<< money_in_use << ", block reward " << base_reward + fee << "(" << base_reward << "+" << fee << ")");
return false;
}
return true;
@ -886,8 +888,8 @@ void Blockchain::get_last_n_blocks_sizes(std::vector<size_t>& sz, size_t count)
return;
// add size of last <count> blocks to vector <sz> (or less, if blockchain size < count)
size_t start_offset = (h+1) - std::min((h+1), count);
for(size_t i = start_offset; i <= h; i++)
size_t start_offset = h - std::min(h, count);
for(size_t i = start_offset; i < h; i++)
{
sz.push_back(m_db->get_block_size(i));
}
@ -922,13 +924,12 @@ bool Blockchain::create_block_template(block& b, const account_public_address& m
b.prev_id = get_tail_id();
b.timestamp = time(NULL);
auto old_height = m_db->height();
height = old_height + 1;
height = m_db->height();
diffic = get_difficulty_for_next_block();
CHECK_AND_ASSERT_MES(diffic, false, "difficulty owverhead.");
median_size = m_current_block_cumul_sz_limit / 2;
already_generated_coins = m_db->get_block_already_generated_coins(old_height);
already_generated_coins = m_db->get_block_already_generated_coins(height - 1);
CRITICAL_REGION_END();
@ -1043,7 +1044,7 @@ bool Blockchain::complete_timestamps_vector(uint64_t start_top_height, std::vect
CRITICAL_REGION_LOCAL(m_blockchain_lock);
size_t need_elements = BLOCKCHAIN_TIMESTAMP_CHECK_WINDOW - timestamps.size();
CHECK_AND_ASSERT_MES(start_top_height <= m_db->height(), false, "internal error: passed start_height > " << " m_db->height() -- " << start_top_height << " > " << m_db->height());
CHECK_AND_ASSERT_MES(start_top_height < m_db->height(), false, "internal error: passed start_height not < " << " m_db->height() -- " << start_top_height << " >= " << m_db->height());
size_t stop_offset = start_top_height > need_elements ? start_top_height - need_elements : 0;
while (start_top_height != stop_offset);
{
@ -1107,7 +1108,7 @@ bool Blockchain::handle_alternative_block(const block& b, const crypto::hash& id
if(alt_chain.size())
{
// make sure alt chain doesn't somehow start past the end of the main chain
CHECK_AND_ASSERT_MES(m_db->height() > alt_chain.front()->second.height, false, "main blockchain wrong height");
CHECK_AND_ASSERT_MES(m_db->height() - 1 > alt_chain.front()->second.height, false, "main blockchain wrong height");
// make sure that the blockchain contains the block that should connect
// this alternate chain with it.
@ -1979,8 +1980,8 @@ bool Blockchain::check_block_timestamp(const block& b)
// need most recent 60 blocks, get index of first of those
// using +1 because BlockchainDB::height() returns the index of the top block,
// not the size of the blockchain (0-indexed)
size_t offset = h - BLOCKCHAIN_TIMESTAMP_CHECK_WINDOW + 1;
for(;offset <= h; ++offset)
size_t offset = h - BLOCKCHAIN_TIMESTAMP_CHECK_WINDOW - 1;
for(;offset < h; ++offset)
{
timestamps.push_back(m_db->get_block_timestamp(offset));
}
@ -2143,7 +2144,7 @@ bool Blockchain::handle_block_to_main_chain(const block& bl, const crypto::hash&
}
uint64_t base_reward = 0;
uint64_t already_generated_coins = m_db->height() ? m_db->get_block_already_generated_coins(m_db->height()) : 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))
{
LOG_PRINT_L0("Block with id: " << id
@ -2161,7 +2162,7 @@ bool Blockchain::handle_block_to_main_chain(const block& bl, const crypto::hash&
cumulative_difficulty = current_diffic;
already_generated_coins = already_generated_coins + base_reward;
if(m_db->height())
cumulative_difficulty += m_db->get_block_cumulative_difficulty(m_db->height());
cumulative_difficulty += m_db->get_block_cumulative_difficulty(m_db->height() - 1);
update_next_cumulative_size_limit();
@ -2169,15 +2170,18 @@ bool Blockchain::handle_block_to_main_chain(const block& bl, const crypto::hash&
uint64_t new_height = 0;
bool add_success = true;
try
if (!bvc.m_verifivation_failed)
{
new_height = m_db->add_block(bl, block_size, cumulative_difficulty, already_generated_coins, txs);
}
catch (const std::exception& e)
{
//TODO: figure out the best way to deal with this failure
LOG_ERROR("Error adding block with hash: " << id << " to blockchain, what = " << e.what());
add_success = false;
try
{
new_height = m_db->add_block(bl, block_size, cumulative_difficulty, already_generated_coins, txs);
}
catch (const std::exception& e)
{
//TODO: figure out the best way to deal with this failure
LOG_ERROR("Error adding block with hash: " << id << " to blockchain, what = " << e.what());
add_success = false;
}
}
// if we failed for any reason to verify the block, return taken

33
src/cryptonote_core/blockchain_db.cpp
View File

@ -29,6 +29,8 @@
#include "cryptonote_core/blockchain_db.h"
#include "cryptonote_format_utils.h"
using epee::string_tools::pod_to_hex;
namespace cryptonote
{
@ -43,20 +45,31 @@ void BlockchainDB::add_transaction(const crypto::hash& blk_hash, const transacti
{
crypto::hash tx_hash = get_transaction_hash(tx);
LOG_PRINT_L0("Adding tx with hash " << pod_to_hex(tx_hash) << " to BlockchainDB instance");
LOG_PRINT_L0("Included in block with hash " << pod_to_hex(blk_hash));
LOG_PRINT_L0("Unlock time == " << tx.unlock_time);
add_transaction_data(blk_hash, tx);
// iterate tx.vout using indices instead of C++11 foreach syntax because
// we need the index
for (uint64_t i = 0; i < tx.vout.size(); ++i)
if (tx.vout.size() != 0) // it may be technically possible for a tx to have no outputs
{
add_output(tx_hash, tx.vout[i], i);
}
for (const txin_v& tx_input : tx.vin)
{
if (tx_input.type() == typeid(txin_to_key))
for (uint64_t i = 0; i < tx.vout.size(); ++i)
{
add_spent_key(boost::get<txin_to_key>(tx_input).k_image);
add_output(tx_hash, tx.vout[i], i);
}
for (const txin_v& tx_input : tx.vin)
{
if (tx_input.type() == typeid(txin_to_key))
{
add_spent_key(boost::get<txin_to_key>(tx_input).k_image);
}
else
{
LOG_PRINT_L0("Is miner tx");
}
}
}
}
@ -68,10 +81,12 @@ uint64_t BlockchainDB::add_block( const block& blk
, const std::vector<transaction>& txs
)
{
crypto::hash blk_hash = get_block_hash(blk);
LOG_PRINT_L0("Adding block with hash " << pod_to_hex(blk_hash) << " to BlockchainDB instance.");
// call out to subclass implementation to add the block & metadata
add_block(blk, block_size, cumulative_difficulty, coins_generated);
crypto::hash blk_hash = get_block_hash(blk);
// call out to add the transactions
add_transaction(blk_hash, blk.miner_tx);