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// Copyright (c) 2014-2015, The Monero Project
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//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
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# pragma once
# include <boost/serialization/serialization.hpp>
# include <boost/serialization/version.hpp>
# include <boost/serialization/list.hpp>
# include <boost/multi_index_container.hpp>
# include <boost/multi_index/global_fun.hpp>
# include <boost/multi_index/hashed_index.hpp>
# include <boost/multi_index/member.hpp>
# include <boost/foreach.hpp>
# include <atomic>
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# include "syncobj.h"
# include "string_tools.h"
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# include "tx_pool.h"
# include "cryptonote_basic.h"
# include "common/util.h"
# include "cryptonote_protocol/cryptonote_protocol_defs.h"
# include "rpc/core_rpc_server_commands_defs.h"
# include "difficulty.h"
# include "cryptonote_core/cryptonote_format_utils.h"
# include "verification_context.h"
# include "crypto/hash.h"
# include "checkpoints.h"
namespace cryptonote
{
/************************************************************************/
/* */
/************************************************************************/
class blockchain_storage
{
public :
struct transaction_chain_entry
{
transaction tx ;
uint64_t m_keeper_block_height ;
size_t m_blob_size ;
std : : vector < uint64_t > m_global_output_indexes ;
} ;
struct block_extended_info
{
block bl ;
uint64_t height ;
size_t block_cumulative_size ;
difficulty_type cumulative_difficulty ;
uint64_t already_generated_coins ;
} ;
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blockchain_storage ( tx_memory_pool & tx_pool ) : m_tx_pool ( tx_pool ) , m_current_block_cumul_sz_limit ( 0 ) , m_is_in_checkpoint_zone ( false ) , m_is_blockchain_storing ( false ) , m_enforce_dns_checkpoints ( false )
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{ } ;
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bool init ( ) { return init ( tools : : get_default_data_dir ( ) , true ) ; }
bool init ( const std : : string & config_folder , bool testnet = false ) ;
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bool deinit ( ) ;
void set_checkpoints ( checkpoints & & chk_pts ) { m_checkpoints = chk_pts ; }
//bool push_new_block();
bool get_blocks ( uint64_t start_offset , size_t count , std : : list < block > & blocks , std : : list < transaction > & txs ) ;
bool get_blocks ( uint64_t start_offset , size_t count , std : : list < block > & blocks ) ;
bool get_alternative_blocks ( std : : list < block > & blocks ) ;
size_t get_alternative_blocks_count ( ) ;
crypto : : hash get_block_id_by_height ( uint64_t height ) ;
bool get_block_by_hash ( const crypto : : hash & h , block & blk ) ;
void get_all_known_block_ids ( std : : list < crypto : : hash > & main , std : : list < crypto : : hash > & alt , std : : list < crypto : : hash > & invalid ) ;
template < class archive_t >
void serialize ( archive_t & ar , const unsigned int version ) ;
bool have_tx ( const crypto : : hash & id ) ;
bool have_tx_keyimges_as_spent ( const transaction & tx ) ;
bool have_tx_keyimg_as_spent ( const crypto : : key_image & key_im ) ;
transaction * get_tx ( const crypto : : hash & id ) ;
template < class visitor_t >
bool scan_outputkeys_for_indexes ( const txin_to_key & tx_in_to_key , visitor_t & vis , uint64_t * pmax_related_block_height = NULL ) ;
uint64_t get_current_blockchain_height ( ) ;
crypto : : hash get_tail_id ( ) ;
crypto : : hash get_tail_id ( uint64_t & height ) ;
difficulty_type get_difficulty_for_next_block ( ) ;
bool add_new_block ( const block & bl_ , block_verification_context & bvc ) ;
bool reset_and_set_genesis_block ( const block & b ) ;
bool create_block_template ( block & b , const account_public_address & miner_address , difficulty_type & di , uint64_t & height , const blobdata & ex_nonce ) ;
bool have_block ( const crypto : : hash & id ) ;
size_t get_total_transactions ( ) ;
bool get_outs ( uint64_t amount , std : : list < crypto : : public_key > & pkeys ) ;
bool get_short_chain_history ( std : : list < crypto : : hash > & ids ) ;
bool find_blockchain_supplement ( const std : : list < crypto : : hash > & qblock_ids , NOTIFY_RESPONSE_CHAIN_ENTRY : : request & resp ) ;
bool find_blockchain_supplement ( const std : : list < crypto : : hash > & qblock_ids , uint64_t & starter_offset ) ;
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bool find_blockchain_supplement ( const uint64_t req_start_block , const std : : list < crypto : : hash > & qblock_ids , std : : list < std : : pair < block , std : : list < transaction > > > & blocks , uint64_t & total_height , uint64_t & start_height , size_t max_count ) ;
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bool handle_get_objects ( NOTIFY_REQUEST_GET_OBJECTS : : request & arg , NOTIFY_RESPONSE_GET_OBJECTS : : request & rsp ) ;
bool handle_get_objects ( const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS : : request & req , COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS : : response & res ) ;
bool get_random_outs_for_amounts ( const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS : : request & req , COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS : : response & res ) ;
bool get_backward_blocks_sizes ( size_t from_height , std : : vector < size_t > & sz , size_t count ) ;
bool get_tx_outputs_gindexs ( const crypto : : hash & tx_id , std : : vector < uint64_t > & indexs ) ;
bool store_blockchain ( ) ;
bool check_tx_input ( const txin_to_key & txin , const crypto : : hash & tx_prefix_hash , const std : : vector < crypto : : signature > & sig , uint64_t * pmax_related_block_height = NULL ) ;
bool check_tx_inputs ( const transaction & tx , const crypto : : hash & tx_prefix_hash , uint64_t * pmax_used_block_height = NULL ) ;
bool check_tx_inputs ( const transaction & tx , uint64_t * pmax_used_block_height = NULL ) ;
bool check_tx_inputs ( const transaction & tx , uint64_t & pmax_used_block_height , crypto : : hash & max_used_block_id ) ;
uint64_t get_current_comulative_blocksize_limit ( ) ;
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bool is_storing_blockchain ( ) { return m_is_blockchain_storing ; }
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uint64_t block_difficulty ( size_t i ) ;
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template < class t_ids_container , class t_blocks_container , class t_missed_container >
bool get_blocks ( const t_ids_container & block_ids , t_blocks_container & blocks , t_missed_container & missed_bs )
{
CRITICAL_REGION_LOCAL ( m_blockchain_lock ) ;
BOOST_FOREACH ( const auto & bl_id , block_ids )
{
auto it = m_blocks_index . find ( bl_id ) ;
if ( it = = m_blocks_index . end ( ) )
missed_bs . push_back ( bl_id ) ;
else
{
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CHECK_AND_ASSERT_MES ( it - > second < m_blocks . size ( ) , false , " Internal error: bl_id= " < < epee : : string_tools : : pod_to_hex ( bl_id )
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< < " have index record with offset= " < < it - > second < < " , bigger then m_blocks.size()= " < < m_blocks . size ( ) ) ;
blocks . push_back ( m_blocks [ it - > second ] . bl ) ;
}
}
return true ;
}
template < class t_ids_container , class t_tx_container , class t_missed_container >
bool get_transactions ( const t_ids_container & txs_ids , t_tx_container & txs , t_missed_container & missed_txs )
{
CRITICAL_REGION_LOCAL ( m_blockchain_lock ) ;
BOOST_FOREACH ( const auto & tx_id , txs_ids )
{
auto it = m_transactions . find ( tx_id ) ;
if ( it = = m_transactions . end ( ) )
{
transaction tx ;
if ( ! m_tx_pool . get_transaction ( tx_id , tx ) )
missed_txs . push_back ( tx_id ) ;
else
txs . push_back ( tx ) ;
}
else
txs . push_back ( it - > second . tx ) ;
}
return true ;
}
//debug functions
void print_blockchain ( uint64_t start_index , uint64_t end_index ) ;
void print_blockchain_index ( ) ;
void print_blockchain_outs ( const std : : string & file ) ;
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void check_against_checkpoints ( checkpoints & points , bool enforce ) ;
bool update_checkpoints ( const std : : string & file_path , bool check_dns ) ;
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void set_enforce_dns_checkpoints ( bool enforce_checkpoints ) ;
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private :
typedef std : : unordered_map < crypto : : hash , size_t > blocks_by_id_index ;
typedef std : : unordered_map < crypto : : hash , transaction_chain_entry > transactions_container ;
typedef std : : unordered_set < crypto : : key_image > key_images_container ;
typedef std : : vector < block_extended_info > blocks_container ;
typedef std : : unordered_map < crypto : : hash , block_extended_info > blocks_ext_by_hash ;
typedef std : : unordered_map < crypto : : hash , block > blocks_by_hash ;
typedef std : : map < uint64_t , std : : vector < std : : pair < crypto : : hash , size_t > > > outputs_container ; //crypto::hash - tx hash, size_t - index of out in transaction
tx_memory_pool & m_tx_pool ;
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epee : : critical_section m_blockchain_lock ; // TODO: add here reader/writer lock
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// main chain
blocks_container m_blocks ; // height -> block_extended_info
blocks_by_id_index m_blocks_index ; // crypto::hash -> height
transactions_container m_transactions ;
key_images_container m_spent_keys ;
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size_t m_current_block_cumul_sz_limit ;
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// all alternative chains
blocks_ext_by_hash m_alternative_chains ; // crypto::hash -> block_extended_info
// some invalid blocks
blocks_ext_by_hash m_invalid_blocks ; // crypto::hash -> block_extended_info
outputs_container m_outputs ;
std : : string m_config_folder ;
checkpoints m_checkpoints ;
std : : atomic < bool > m_is_in_checkpoint_zone ;
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std : : atomic < bool > m_is_blockchain_storing ;
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bool m_enforce_dns_checkpoints ;
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bool switch_to_alternative_blockchain ( std : : list < blocks_ext_by_hash : : iterator > & alt_chain , bool discard_disconnected_chain ) ;
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bool pop_block_from_blockchain ( ) ;
bool purge_block_data_from_blockchain ( const block & b , size_t processed_tx_count ) ;
bool purge_transaction_from_blockchain ( const crypto : : hash & tx_id ) ;
bool purge_transaction_keyimages_from_blockchain ( const transaction & tx , bool strict_check ) ;
bool handle_block_to_main_chain ( const block & bl , block_verification_context & bvc ) ;
bool handle_block_to_main_chain ( const block & bl , const crypto : : hash & id , block_verification_context & bvc ) ;
bool handle_alternative_block ( const block & b , const crypto : : hash & id , block_verification_context & bvc ) ;
difficulty_type get_next_difficulty_for_alternative_chain ( const std : : list < blocks_ext_by_hash : : iterator > & alt_chain , block_extended_info & bei ) ;
bool prevalidate_miner_transaction ( const block & b , uint64_t height ) ;
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 validate_transaction ( const block & b , uint64_t height , const transaction & tx ) ;
bool rollback_blockchain_switching ( std : : list < block > & original_chain , size_t rollback_height ) ;
bool add_transaction_from_block ( const transaction & tx , const crypto : : hash & tx_id , const crypto : : hash & bl_id , uint64_t bl_height ) ;
bool push_transaction_to_global_outs_index ( const transaction & tx , const crypto : : hash & tx_id , std : : vector < uint64_t > & global_indexes ) ;
bool pop_transaction_from_global_index ( const transaction & tx , const crypto : : hash & tx_id ) ;
bool get_last_n_blocks_sizes ( std : : vector < size_t > & sz , size_t count ) ;
bool add_out_to_get_random_outs ( std : : vector < std : : pair < crypto : : hash , size_t > > & amount_outs , COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS : : outs_for_amount & result_outs , uint64_t amount , size_t i ) ;
bool is_tx_spendtime_unlocked ( uint64_t unlock_time ) ;
bool add_block_as_invalid ( const block & bl , const crypto : : hash & h ) ;
bool add_block_as_invalid ( const block_extended_info & bei , const crypto : : hash & h ) ;
size_t find_end_of_allowed_index ( const std : : vector < std : : pair < crypto : : hash , size_t > > & amount_outs ) ;
bool check_block_timestamp_main ( const block & b ) ;
bool check_block_timestamp ( std : : vector < uint64_t > timestamps , const block & b ) ;
uint64_t get_adjusted_time ( ) ;
bool complete_timestamps_vector ( uint64_t start_height , std : : vector < uint64_t > & timestamps ) ;
bool update_next_comulative_size_limit ( ) ;
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bool store_genesis_block ( bool testnet ) ;
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} ;
/************************************************************************/
/* */
/************************************************************************/
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# define CURRENT_BLOCKCHAIN_STORAGE_ARCHIVE_VER 12
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template < class archive_t >
void blockchain_storage : : serialize ( archive_t & ar , const unsigned int version )
{
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if ( version < 11 )
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return ;
CRITICAL_REGION_LOCAL ( m_blockchain_lock ) ;
ar & m_blocks ;
ar & m_blocks_index ;
ar & m_transactions ;
ar & m_spent_keys ;
ar & m_alternative_chains ;
ar & m_outputs ;
ar & m_invalid_blocks ;
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ar & m_current_block_cumul_sz_limit ;
/*serialization bug workaround*/
if ( version > 11 )
{
uint64_t total_check_count = m_blocks . size ( ) + m_blocks_index . size ( ) + m_transactions . size ( ) + m_spent_keys . size ( ) + m_alternative_chains . size ( ) + m_outputs . size ( ) + m_invalid_blocks . size ( ) + m_current_block_cumul_sz_limit ;
if ( archive_t : : is_saving : : value )
{
ar & total_check_count ;
} else
{
uint64_t total_check_count_loaded = 0 ;
ar & total_check_count_loaded ;
if ( total_check_count ! = total_check_count_loaded )
{
LOG_ERROR ( " Blockchain storage data corruption detected. total_count loaded from file = " < < total_check_count_loaded < < " , expected = " < < total_check_count ) ;
LOG_PRINT_L0 ( " Blockchain storage: " < < ENDL < <
" m_blocks: " < < m_blocks . size ( ) < < ENDL < <
" m_blocks_index: " < < m_blocks_index . size ( ) < < ENDL < <
" m_transactions: " < < m_transactions . size ( ) < < ENDL < <
" m_spent_keys: " < < m_spent_keys . size ( ) < < ENDL < <
" m_alternative_chains: " < < m_alternative_chains . size ( ) < < ENDL < <
" m_outputs: " < < m_outputs . size ( ) < < ENDL < <
" m_invalid_blocks: " < < m_invalid_blocks . size ( ) < < ENDL < <
" m_current_block_cumul_sz_limit: " < < m_current_block_cumul_sz_limit ) ;
throw std : : runtime_error ( " Blockchain data corruption " ) ;
}
}
}
LOG_PRINT_L2 ( " Blockchain storage: " < < ENDL < <
" m_blocks: " < < m_blocks . size ( ) < < ENDL < <
" m_blocks_index: " < < m_blocks_index . size ( ) < < ENDL < <
" m_transactions: " < < m_transactions . size ( ) < < ENDL < <
" m_spent_keys: " < < m_spent_keys . size ( ) < < ENDL < <
" m_alternative_chains: " < < m_alternative_chains . size ( ) < < ENDL < <
" m_outputs: " < < m_outputs . size ( ) < < ENDL < <
" m_invalid_blocks: " < < m_invalid_blocks . size ( ) < < ENDL < <
" m_current_block_cumul_sz_limit: " < < m_current_block_cumul_sz_limit ) ;
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}
//------------------------------------------------------------------
template < class visitor_t >
bool blockchain_storage : : scan_outputkeys_for_indexes ( const txin_to_key & tx_in_to_key , visitor_t & vis , uint64_t * pmax_related_block_height )
{
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CRITICAL_REGION_LOCAL ( m_blockchain_lock ) ;
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auto it = m_outputs . find ( tx_in_to_key . amount ) ;
if ( it = = m_outputs . end ( ) | | ! tx_in_to_key . key_offsets . size ( ) )
return false ;
std : : vector < uint64_t > absolute_offsets = relative_output_offsets_to_absolute ( tx_in_to_key . key_offsets ) ;
std : : vector < std : : pair < crypto : : hash , size_t > > & amount_outs_vec = it - > second ;
size_t count = 0 ;
BOOST_FOREACH ( uint64_t i , absolute_offsets )
{
if ( i > = amount_outs_vec . size ( ) )
{
LOG_PRINT_L0 ( " Wrong index in transaction inputs: " < < i < < " , expected maximum " < < amount_outs_vec . size ( ) - 1 ) ;
return false ;
}
transactions_container : : iterator tx_it = m_transactions . find ( amount_outs_vec [ i ] . first ) ;
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CHECK_AND_ASSERT_MES ( tx_it ! = m_transactions . end ( ) , false , " Wrong transaction id in output indexes: " < < epee : : string_tools : : pod_to_hex ( amount_outs_vec [ i ] . first ) ) ;
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CHECK_AND_ASSERT_MES ( amount_outs_vec [ i ] . second < tx_it - > second . tx . vout . size ( ) , false ,
" Wrong index in transaction outputs: " < < amount_outs_vec [ i ] . second < < " , expected less then " < < tx_it - > second . tx . vout . size ( ) ) ;
if ( ! vis . handle_output ( tx_it - > second . tx , tx_it - > second . tx . vout [ amount_outs_vec [ i ] . second ] ) )
{
LOG_PRINT_L0 ( " Failed to handle_output for output no = " < < count < < " , with absolute offset " < < i ) ;
return false ;
}
if ( count + + = = absolute_offsets . size ( ) - 1 & & pmax_related_block_height )
{
if ( * pmax_related_block_height < tx_it - > second . m_keeper_block_height )
* pmax_related_block_height = tx_it - > second . m_keeper_block_height ;
}
}
return true ;
}
}
BOOST_CLASS_VERSION ( cryptonote : : blockchain_storage , CURRENT_BLOCKCHAIN_STORAGE_ARCHIVE_VER )
