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https://codeberg.org/anoncontributorxmr/monero.git
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07470fd400
Source: cryptonotefoundation
1761 lines
73 KiB
C++
1761 lines
73 KiB
C++
// Copyright (c) 2014, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
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#include <algorithm>
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#include <cstdio>
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#include <boost/archive/binary_oarchive.hpp>
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#include <boost/archive/binary_iarchive.hpp>
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#include "include_base_utils.h"
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#include "cryptonote_basic_impl.h"
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#include "blockchain_storage.h"
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#include "cryptonote_format_utils.h"
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#include "cryptonote_boost_serialization.h"
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#include "blockchain_storage_boost_serialization.h"
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#include "cryptonote_config.h"
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#include "miner.h"
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#include "misc_language.h"
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#include "profile_tools.h"
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#include "file_io_utils.h"
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#include "common/boost_serialization_helper.h"
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#include "warnings.h"
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#include "crypto/hash.h"
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//#include "serialization/json_archive.h"
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using namespace cryptonote;
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DISABLE_VS_WARNINGS(4267)
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//------------------------------------------------------------------
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bool blockchain_storage::have_tx(const crypto::hash &id)
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{
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CRITICAL_REGION_LOCAL(m_blockchain_lock);
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return m_transactions.find(id) != m_transactions.end();
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}
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//------------------------------------------------------------------
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bool blockchain_storage::have_tx_keyimg_as_spent(const crypto::key_image &key_im)
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{
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CRITICAL_REGION_LOCAL(m_blockchain_lock);
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return m_spent_keys.find(key_im) != m_spent_keys.end();
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}
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//------------------------------------------------------------------
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transaction *blockchain_storage::get_tx(const crypto::hash &id)
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{
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CRITICAL_REGION_LOCAL(m_blockchain_lock);
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auto it = m_transactions.find(id);
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if (it == m_transactions.end())
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return NULL;
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return &it->second.tx;
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}
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//------------------------------------------------------------------
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uint64_t blockchain_storage::get_current_blockchain_height()
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{
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CRITICAL_REGION_LOCAL(m_blockchain_lock);
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return m_blocks.size();
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}
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//------------------------------------------------------------------
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bool blockchain_storage::init(const std::string& config_folder, bool testnet)
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{
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CRITICAL_REGION_LOCAL(m_blockchain_lock);
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m_config_folder = config_folder;
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LOG_PRINT_L0("Loading blockchain...");
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const std::string filename = m_config_folder + "/" CRYPTONOTE_BLOCKCHAINDATA_FILENAME;
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if(tools::unserialize_obj_from_file(*this, filename))
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{
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// checkpoints
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// mainchain
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for (size_t height=0; height < m_blocks.size(); ++height)
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{
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CHECK_AND_ASSERT_MES((!m_checkpoints.is_in_checkpoint_zone(height)) || m_checkpoints.check_block(height,get_block_hash(m_blocks[height].bl)),false,"checkpoint fail, blockchain.bin invalid");
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}
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// check alt chains
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#if 0
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// doesn't work when a checkpoint is added and there are already alt chains. However, the rest of the blockchain code suffers from the same issue, so ignore for now
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// see issue #118
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BOOST_FOREACH(blocks_ext_by_hash::value_type& alt_block, m_alternative_chains)
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{
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CHECK_AND_ASSERT_MES(m_checkpoints.is_alternative_block_allowed(m_blocks.size()-1,alt_block.second.height),false,"stored alternative block not allowed, blockchain.bin invalid");
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}
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#endif
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}
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else
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{
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LOG_PRINT_L0("Can't load blockchain storage from file, generating genesis block.");
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block bl = boost::value_initialized<block>();
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block_verification_context bvc = boost::value_initialized<block_verification_context>();
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generate_genesis_block(bl);
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add_new_block(bl, bvc);
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CHECK_AND_ASSERT_MES(!bvc.m_verifivation_failed && bvc.m_added_to_main_chain, false, "Failed to add genesis block to blockchain");
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}
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if(!m_blocks.size())
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{
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LOG_PRINT_L0("Blockchain not loaded, generating genesis block.");
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if (!store_genesis_block(testnet)) {
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return false;
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}
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} else {
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cryptonote::block b;
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if (testnet) {
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generate_testnet_genesis_block(b);
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} else {
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generate_genesis_block(b);
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}
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crypto::hash genesis_hash = get_block_hash(m_blocks[0].bl);
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crypto::hash testnet_genesis_hash = get_block_hash(b);
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if (genesis_hash != testnet_genesis_hash) {
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LOG_ERROR("Failed to init: genesis block mismatch. Probably you set --testnet flag with data dir with non-test blockchain or another network.");
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return false;
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}
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}
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uint64_t timestamp_diff = time(NULL) - m_blocks.back().bl.timestamp;
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if(!m_blocks.back().bl.timestamp)
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timestamp_diff = time(NULL) - 1341378000;
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LOG_PRINT_GREEN("Blockchain initialized. last block: " << m_blocks.size() - 1 << ", " << epee::misc_utils::get_time_interval_string(timestamp_diff) << " time ago, current difficulty: " << get_difficulty_for_next_block(), LOG_LEVEL_0);
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return true;
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}
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//------------------------------------------------------------------
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bool blockchain_storage::store_genesis_block(bool testnet) {
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block bl = ::boost::value_initialized<block>();
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block_verification_context bvc = boost::value_initialized<block_verification_context>();
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if (testnet) {
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generate_testnet_genesis_block(bl);
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} else {
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generate_genesis_block(bl);
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}
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add_new_block(bl, bvc);
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CHECK_AND_ASSERT_MES(!bvc.m_verifivation_failed, false, "Failed to add genesis block to blockchain");
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return true;
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}
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//------------------------------------------------------------------
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bool blockchain_storage::store_blockchain()
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{
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m_is_blockchain_storing = true;
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epee::misc_utils::auto_scope_leave_caller scope_exit_handler = epee::misc_utils::create_scope_leave_handler([&](){m_is_blockchain_storing=false;});
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LOG_PRINT_L0("Storing blockchain...");
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if (!tools::create_directories_if_necessary(m_config_folder))
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{
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LOG_PRINT_L0("Failed to create data directory: " << m_config_folder);
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return false;
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}
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const std::string temp_filename = m_config_folder + "/" CRYPTONOTE_BLOCKCHAINDATA_TEMP_FILENAME;
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// There is a chance that temp_filename and filename are hardlinks to the same file
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std::remove(temp_filename.c_str());
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if(!tools::serialize_obj_to_file(*this, temp_filename))
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{
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//achtung!
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LOG_ERROR("Failed to save blockchain data to file: " << temp_filename);
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return false;
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}
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const std::string filename = m_config_folder + "/" CRYPTONOTE_BLOCKCHAINDATA_FILENAME;
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std::error_code ec = tools::replace_file(temp_filename, filename);
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if (ec)
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{
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LOG_ERROR("Failed to rename blockchain data file " << temp_filename << " to " << filename << ": " << ec.message() << ':' << ec.value());
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return false;
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}
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LOG_PRINT_L0("Blockchain stored OK.");
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return true;
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}
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//------------------------------------------------------------------
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bool blockchain_storage::deinit()
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{
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return store_blockchain();
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}
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//------------------------------------------------------------------
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bool blockchain_storage::pop_block_from_blockchain()
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{
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CRITICAL_REGION_LOCAL(m_blockchain_lock);
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CHECK_AND_ASSERT_MES(m_blocks.size() > 1, false, "pop_block_from_blockchain: can't pop from blockchain with size = " << m_blocks.size());
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size_t h = m_blocks.size()-1;
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block_extended_info& bei = m_blocks[h];
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//crypto::hash id = get_block_hash(bei.bl);
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bool r = purge_block_data_from_blockchain(bei.bl, bei.bl.tx_hashes.size());
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CHECK_AND_ASSERT_MES(r, false, "Failed to purge_block_data_from_blockchain for block " << get_block_hash(bei.bl) << " on height " << h);
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//remove from index
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auto bl_ind = m_blocks_index.find(get_block_hash(bei.bl));
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CHECK_AND_ASSERT_MES(bl_ind != m_blocks_index.end(), false, "pop_block_from_blockchain: blockchain id not found in index");
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m_blocks_index.erase(bl_ind);
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//pop block from core
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m_blocks.pop_back();
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m_tx_pool.on_blockchain_dec(m_blocks.size()-1, get_tail_id());
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return true;
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}
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//------------------------------------------------------------------
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bool blockchain_storage::reset_and_set_genesis_block(const block& b)
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{
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CRITICAL_REGION_LOCAL(m_blockchain_lock);
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m_transactions.clear();
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m_spent_keys.clear();
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m_blocks.clear();
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m_blocks_index.clear();
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m_alternative_chains.clear();
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m_outputs.clear();
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block_verification_context bvc = boost::value_initialized<block_verification_context>();
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add_new_block(b, bvc);
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return bvc.m_added_to_main_chain && !bvc.m_verifivation_failed;
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}
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//------------------------------------------------------------------
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bool blockchain_storage::purge_transaction_keyimages_from_blockchain(const transaction& tx, bool strict_check)
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{
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CRITICAL_REGION_LOCAL(m_blockchain_lock);
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struct purge_transaction_visitor: public boost::static_visitor<bool>
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{
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key_images_container& m_spent_keys;
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bool m_strict_check;
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purge_transaction_visitor(key_images_container& spent_keys, bool strict_check):m_spent_keys(spent_keys), m_strict_check(strict_check){}
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bool operator()(const txin_to_key& inp) const
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{
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//const crypto::key_image& ki = inp.k_image;
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auto r = m_spent_keys.find(inp.k_image);
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if(r != m_spent_keys.end())
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{
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m_spent_keys.erase(r);
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}else
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{
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CHECK_AND_ASSERT_MES(!m_strict_check, false, "purge_block_data_from_blockchain: key image in transaction not found");
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}
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return true;
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}
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bool operator()(const txin_gen& inp) const
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{
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return true;
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}
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bool operator()(const txin_to_script& tx) const
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{
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return false;
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}
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bool operator()(const txin_to_scripthash& tx) const
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{
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return false;
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}
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};
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BOOST_FOREACH(const txin_v& in, tx.vin)
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{
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bool r = boost::apply_visitor(purge_transaction_visitor(m_spent_keys, strict_check), in);
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CHECK_AND_ASSERT_MES(!strict_check || r, false, "failed to process purge_transaction_visitor");
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}
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return true;
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}
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//------------------------------------------------------------------
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bool blockchain_storage::purge_transaction_from_blockchain(const crypto::hash& tx_id)
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{
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CRITICAL_REGION_LOCAL(m_blockchain_lock);
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auto tx_index_it = m_transactions.find(tx_id);
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CHECK_AND_ASSERT_MES(tx_index_it != m_transactions.end(), false, "purge_block_data_from_blockchain: transaction not found in blockchain index!!");
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transaction& tx = tx_index_it->second.tx;
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purge_transaction_keyimages_from_blockchain(tx, true);
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if(!is_coinbase(tx))
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{
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cryptonote::tx_verification_context tvc = AUTO_VAL_INIT(tvc);
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bool r = m_tx_pool.add_tx(tx, tvc, true);
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CHECK_AND_ASSERT_MES(r, false, "purge_block_data_from_blockchain: failed to add transaction to transaction pool");
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}
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bool res = pop_transaction_from_global_index(tx, tx_id);
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m_transactions.erase(tx_index_it);
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LOG_PRINT_L1("Removed transaction from blockchain history:" << tx_id << ENDL);
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return res;
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}
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//------------------------------------------------------------------
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bool blockchain_storage::purge_block_data_from_blockchain(const block& bl, size_t processed_tx_count)
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{
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CRITICAL_REGION_LOCAL(m_blockchain_lock);
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bool res = true;
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CHECK_AND_ASSERT_MES(processed_tx_count <= bl.tx_hashes.size(), false, "wrong processed_tx_count in purge_block_data_from_blockchain");
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for(size_t count = 0; count != processed_tx_count; count++)
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{
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res = purge_transaction_from_blockchain(bl.tx_hashes[(processed_tx_count -1)- count]) && res;
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}
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res = purge_transaction_from_blockchain(get_transaction_hash(bl.miner_tx)) && res;
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return res;
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}
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//------------------------------------------------------------------
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crypto::hash blockchain_storage::get_tail_id(uint64_t& height)
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{
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CRITICAL_REGION_LOCAL(m_blockchain_lock);
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height = get_current_blockchain_height()-1;
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return get_tail_id();
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}
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//------------------------------------------------------------------
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crypto::hash blockchain_storage::get_tail_id()
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{
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CRITICAL_REGION_LOCAL(m_blockchain_lock);
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crypto::hash id = null_hash;
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if(m_blocks.size())
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{
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get_block_hash(m_blocks.back().bl, id);
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}
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return id;
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}
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//------------------------------------------------------------------
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bool blockchain_storage::get_short_chain_history(std::list<crypto::hash>& ids)
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{
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CRITICAL_REGION_LOCAL(m_blockchain_lock);
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size_t i = 0;
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size_t current_multiplier = 1;
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size_t sz = m_blocks.size();
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if(!sz)
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return true;
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size_t current_back_offset = 1;
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bool genesis_included = false;
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while(current_back_offset < sz)
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{
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ids.push_back(get_block_hash(m_blocks[sz-current_back_offset].bl));
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if(sz-current_back_offset == 0)
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genesis_included = true;
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if(i < 10)
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{
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++current_back_offset;
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}else
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{
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current_back_offset += current_multiplier *= 2;
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}
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++i;
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}
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if(!genesis_included)
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ids.push_back(get_block_hash(m_blocks[0].bl));
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return true;
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}
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//------------------------------------------------------------------
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crypto::hash blockchain_storage::get_block_id_by_height(uint64_t height)
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{
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CRITICAL_REGION_LOCAL(m_blockchain_lock);
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if(height >= m_blocks.size())
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return null_hash;
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return get_block_hash(m_blocks[height].bl);
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}
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//------------------------------------------------------------------
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bool blockchain_storage::get_block_by_hash(const crypto::hash &h, block &blk) {
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CRITICAL_REGION_LOCAL(m_blockchain_lock);
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// try to find block in main chain
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blocks_by_id_index::const_iterator it = m_blocks_index.find(h);
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if (m_blocks_index.end() != it) {
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blk = m_blocks[it->second].bl;
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return true;
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}
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// try to find block in alternative chain
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blocks_ext_by_hash::const_iterator it_alt = m_alternative_chains.find(h);
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if (m_alternative_chains.end() != it_alt) {
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blk = it_alt->second.bl;
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return true;
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}
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return false;
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}
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//------------------------------------------------------------------
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void blockchain_storage::get_all_known_block_ids(std::list<crypto::hash> &main, std::list<crypto::hash> &alt, std::list<crypto::hash> &invalid) {
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CRITICAL_REGION_LOCAL(m_blockchain_lock);
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BOOST_FOREACH(blocks_by_id_index::value_type &v, m_blocks_index)
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main.push_back(v.first);
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BOOST_FOREACH(blocks_ext_by_hash::value_type &v, m_alternative_chains)
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alt.push_back(v.first);
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BOOST_FOREACH(blocks_ext_by_hash::value_type &v, m_invalid_blocks)
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invalid.push_back(v.first);
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}
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//------------------------------------------------------------------
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difficulty_type blockchain_storage::get_difficulty_for_next_block()
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{
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CRITICAL_REGION_LOCAL(m_blockchain_lock);
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std::vector<uint64_t> timestamps;
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std::vector<difficulty_type> commulative_difficulties;
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size_t offset = m_blocks.size() - std::min(m_blocks.size(), static_cast<size_t>(DIFFICULTY_BLOCKS_COUNT));
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if(!offset)
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++offset;//skip genesis block
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for(; offset < m_blocks.size(); offset++)
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{
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timestamps.push_back(m_blocks[offset].bl.timestamp);
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commulative_difficulties.push_back(m_blocks[offset].cumulative_difficulty);
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}
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return next_difficulty(timestamps, commulative_difficulties);
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}
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//------------------------------------------------------------------
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bool blockchain_storage::rollback_blockchain_switching(std::list<block>& original_chain, size_t rollback_height)
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{
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CRITICAL_REGION_LOCAL(m_blockchain_lock);
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//remove failed subchain
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for(size_t i = m_blocks.size()-1; i >=rollback_height; i--)
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{
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bool r = pop_block_from_blockchain();
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CHECK_AND_ASSERT_MES(r, false, "PANIC! failed to remove block while chain switching during the rollback!");
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}
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//return back original chain
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BOOST_FOREACH(auto& bl, original_chain)
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{
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block_verification_context bvc = boost::value_initialized<block_verification_context>();
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bool r = handle_block_to_main_chain(bl, bvc);
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CHECK_AND_ASSERT_MES(r && bvc.m_added_to_main_chain, false, "PANIC! failed to add (again) block while chain switching during the rollback!");
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}
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LOG_PRINT_L1("Rollback success.");
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return true;
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}
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//------------------------------------------------------------------
|
|
bool blockchain_storage::switch_to_alternative_blockchain(std::list<blocks_ext_by_hash::iterator>& alt_chain, bool discard_disconnected_chain)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
CHECK_AND_ASSERT_MES(alt_chain.size(), false, "switch_to_alternative_blockchain: empty chain passed");
|
|
|
|
size_t split_height = alt_chain.front()->second.height;
|
|
CHECK_AND_ASSERT_MES(m_blocks.size() > split_height, false, "switch_to_alternative_blockchain: blockchain size is lower than split height");
|
|
|
|
//disconnecting old chain
|
|
std::list<block> disconnected_chain;
|
|
for(size_t i = m_blocks.size()-1; i >=split_height; i--)
|
|
{
|
|
block b = m_blocks[i].bl;
|
|
bool r = pop_block_from_blockchain();
|
|
CHECK_AND_ASSERT_MES(r, false, "failed to remove block on chain switching");
|
|
disconnected_chain.push_front(b);
|
|
}
|
|
|
|
//connecting new alternative chain
|
|
for(auto alt_ch_iter = alt_chain.begin(); alt_ch_iter != alt_chain.end(); alt_ch_iter++)
|
|
{
|
|
auto ch_ent = *alt_ch_iter;
|
|
block_verification_context bvc = boost::value_initialized<block_verification_context>();
|
|
bool r = handle_block_to_main_chain(ch_ent->second.bl, bvc);
|
|
if(!r || !bvc.m_added_to_main_chain)
|
|
{
|
|
LOG_PRINT_L1("Failed to switch to alternative blockchain");
|
|
rollback_blockchain_switching(disconnected_chain, split_height);
|
|
add_block_as_invalid(ch_ent->second, get_block_hash(ch_ent->second.bl));
|
|
LOG_PRINT_L1("The block was inserted as invalid while connecting new alternative chain, block_id: " << get_block_hash(ch_ent->second.bl));
|
|
m_alternative_chains.erase(ch_ent);
|
|
|
|
for(auto alt_ch_to_orph_iter = ++alt_ch_iter; alt_ch_to_orph_iter != alt_chain.end(); alt_ch_to_orph_iter++)
|
|
{
|
|
//block_verification_context bvc = boost::value_initialized<block_verification_context>();
|
|
add_block_as_invalid((*alt_ch_iter)->second, (*alt_ch_iter)->first);
|
|
m_alternative_chains.erase(*alt_ch_to_orph_iter);
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if(!discard_disconnected_chain)
|
|
{
|
|
//pushing old chain as alternative chain
|
|
BOOST_FOREACH(auto& old_ch_ent, disconnected_chain)
|
|
{
|
|
block_verification_context bvc = boost::value_initialized<block_verification_context>();
|
|
bool r = handle_alternative_block(old_ch_ent, get_block_hash(old_ch_ent), bvc);
|
|
if(!r)
|
|
{
|
|
LOG_PRINT_L1("Failed to push ex-main chain blocks to alternative chain ");
|
|
rollback_blockchain_switching(disconnected_chain, split_height);
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
//removing all_chain entries from alternative chain
|
|
BOOST_FOREACH(auto ch_ent, alt_chain)
|
|
{
|
|
m_alternative_chains.erase(ch_ent);
|
|
}
|
|
|
|
LOG_PRINT_GREEN("REORGANIZE SUCCESS! on height: " << split_height << ", new blockchain size: " << m_blocks.size(), LOG_LEVEL_0);
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
difficulty_type blockchain_storage::get_next_difficulty_for_alternative_chain(const std::list<blocks_ext_by_hash::iterator>& alt_chain, block_extended_info& bei)
|
|
{
|
|
std::vector<uint64_t> timestamps;
|
|
std::vector<difficulty_type> commulative_difficulties;
|
|
if(alt_chain.size()< DIFFICULTY_BLOCKS_COUNT)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
size_t main_chain_stop_offset = alt_chain.size() ? alt_chain.front()->second.height : bei.height;
|
|
size_t main_chain_count = DIFFICULTY_BLOCKS_COUNT - std::min(static_cast<size_t>(DIFFICULTY_BLOCKS_COUNT), alt_chain.size());
|
|
main_chain_count = std::min(main_chain_count, main_chain_stop_offset);
|
|
size_t main_chain_start_offset = main_chain_stop_offset - main_chain_count;
|
|
|
|
if(!main_chain_start_offset)
|
|
++main_chain_start_offset; //skip genesis block
|
|
for(; main_chain_start_offset < main_chain_stop_offset; ++main_chain_start_offset)
|
|
{
|
|
timestamps.push_back(m_blocks[main_chain_start_offset].bl.timestamp);
|
|
commulative_difficulties.push_back(m_blocks[main_chain_start_offset].cumulative_difficulty);
|
|
}
|
|
|
|
CHECK_AND_ASSERT_MES((alt_chain.size() + timestamps.size()) <= DIFFICULTY_BLOCKS_COUNT, false, "Internal error, alt_chain.size()["<< alt_chain.size()
|
|
<< "] + vtimestampsec.size()[" << timestamps.size() << "] NOT <= DIFFICULTY_WINDOW[]" << DIFFICULTY_BLOCKS_COUNT );
|
|
BOOST_FOREACH(auto it, alt_chain)
|
|
{
|
|
timestamps.push_back(it->second.bl.timestamp);
|
|
commulative_difficulties.push_back(it->second.cumulative_difficulty);
|
|
}
|
|
}else
|
|
{
|
|
timestamps.resize(std::min(alt_chain.size(), static_cast<size_t>(DIFFICULTY_BLOCKS_COUNT)));
|
|
commulative_difficulties.resize(std::min(alt_chain.size(), static_cast<size_t>(DIFFICULTY_BLOCKS_COUNT)));
|
|
size_t count = 0;
|
|
size_t max_i = timestamps.size()-1;
|
|
BOOST_REVERSE_FOREACH(auto it, alt_chain)
|
|
{
|
|
timestamps[max_i - count] = it->second.bl.timestamp;
|
|
commulative_difficulties[max_i - count] = it->second.cumulative_difficulty;
|
|
count++;
|
|
if(count >= DIFFICULTY_BLOCKS_COUNT)
|
|
break;
|
|
}
|
|
}
|
|
return next_difficulty(timestamps, commulative_difficulties);
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::prevalidate_miner_transaction(const block& b, uint64_t height)
|
|
{
|
|
CHECK_AND_ASSERT_MES(b.miner_tx.vin.size() == 1, false, "coinbase transaction in the block has no inputs");
|
|
CHECK_AND_ASSERT_MES(b.miner_tx.vin[0].type() == typeid(txin_gen), false, "coinbase transaction in the block has the wrong type");
|
|
if(boost::get<txin_gen>(b.miner_tx.vin[0]).height != height)
|
|
{
|
|
LOG_PRINT_RED_L1("The miner transaction in block has invalid height: " << boost::get<txin_gen>(b.miner_tx.vin[0]).height << ", expected: " << height);
|
|
return false;
|
|
}
|
|
CHECK_AND_ASSERT_MES(b.miner_tx.unlock_time == height + CRYPTONOTE_MINED_MONEY_UNLOCK_WINDOW,
|
|
false,
|
|
"coinbase transaction transaction has the wrong unlock time=" << b.miner_tx.unlock_time << ", expected " << height + CRYPTONOTE_MINED_MONEY_UNLOCK_WINDOW);
|
|
|
|
//check outs overflow
|
|
if(!check_outs_overflow(b.miner_tx))
|
|
{
|
|
LOG_PRINT_RED_L1("miner transaction has money overflow in block " << get_block_hash(b));
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::validate_miner_transaction(const block& b, size_t cumulative_block_size, uint64_t fee, uint64_t& base_reward, uint64_t already_generated_coins)
|
|
{
|
|
//validate reward
|
|
uint64_t money_in_use = 0;
|
|
BOOST_FOREACH(auto& o, b.miner_tx.vout)
|
|
money_in_use += o.amount;
|
|
|
|
std::vector<size_t> last_blocks_sizes;
|
|
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)) {
|
|
LOG_PRINT_L1("block size " << cumulative_block_size << " is bigger than allowed for this blockchain");
|
|
return false;
|
|
}
|
|
if(base_reward + fee < money_in_use)
|
|
{
|
|
LOG_PRINT_L1("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) << ")");
|
|
return false;
|
|
}
|
|
if(base_reward + fee != money_in_use)
|
|
{
|
|
LOG_PRINT_L1("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) << ")");
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::get_backward_blocks_sizes(size_t from_height, std::vector<size_t>& sz, size_t count)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
CHECK_AND_ASSERT_MES(from_height < m_blocks.size(), false, "Internal error: get_backward_blocks_sizes called with from_height=" << from_height << ", blockchain height = " << m_blocks.size());
|
|
|
|
size_t start_offset = (from_height+1) - std::min((from_height+1), count);
|
|
for(size_t i = start_offset; i != from_height+1; i++)
|
|
sz.push_back(m_blocks[i].block_cumulative_size);
|
|
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::get_last_n_blocks_sizes(std::vector<size_t>& sz, size_t count)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
if(!m_blocks.size())
|
|
return true;
|
|
return get_backward_blocks_sizes(m_blocks.size() -1, sz, count);
|
|
}
|
|
//------------------------------------------------------------------
|
|
uint64_t blockchain_storage::get_current_comulative_blocksize_limit()
|
|
{
|
|
return m_current_block_cumul_sz_limit;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::create_block_template(block& b, const account_public_address& miner_address, difficulty_type& diffic, uint64_t& height, const blobdata& ex_nonce)
|
|
{
|
|
size_t median_size;
|
|
uint64_t already_generated_coins;
|
|
|
|
CRITICAL_REGION_BEGIN(m_blockchain_lock);
|
|
b.major_version = CURRENT_BLOCK_MAJOR_VERSION;
|
|
b.minor_version = CURRENT_BLOCK_MINOR_VERSION;
|
|
b.prev_id = get_tail_id();
|
|
b.timestamp = time(NULL);
|
|
height = m_blocks.size();
|
|
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_blocks.back().already_generated_coins;
|
|
|
|
CRITICAL_REGION_END();
|
|
|
|
size_t txs_size;
|
|
uint64_t fee;
|
|
if (!m_tx_pool.fill_block_template(b, median_size, already_generated_coins, txs_size, fee)) {
|
|
return false;
|
|
}
|
|
#if defined(DEBUG_CREATE_BLOCK_TEMPLATE)
|
|
size_t real_txs_size = 0;
|
|
uint64_t real_fee = 0;
|
|
CRITICAL_REGION_BEGIN(m_tx_pool.m_transactions_lock);
|
|
BOOST_FOREACH(crypto::hash &cur_hash, b.tx_hashes) {
|
|
auto cur_res = m_tx_pool.m_transactions.find(cur_hash);
|
|
if (cur_res == m_tx_pool.m_transactions.end()) {
|
|
LOG_ERROR("Creating block template: error: transaction not found");
|
|
continue;
|
|
}
|
|
tx_memory_pool::tx_details &cur_tx = cur_res->second;
|
|
real_txs_size += cur_tx.blob_size;
|
|
real_fee += cur_tx.fee;
|
|
if (cur_tx.blob_size != get_object_blobsize(cur_tx.tx)) {
|
|
LOG_ERROR("Creating block template: error: invalid transaction size");
|
|
}
|
|
uint64_t inputs_amount;
|
|
if (!get_inputs_money_amount(cur_tx.tx, inputs_amount)) {
|
|
LOG_ERROR("Creating block template: error: cannot get inputs amount");
|
|
} else if (cur_tx.fee != inputs_amount - get_outs_money_amount(cur_tx.tx)) {
|
|
LOG_ERROR("Creating block template: error: invalid fee");
|
|
}
|
|
}
|
|
if (txs_size != real_txs_size) {
|
|
LOG_ERROR("Creating block template: error: wrongly calculated transaction size");
|
|
}
|
|
if (fee != real_fee) {
|
|
LOG_ERROR("Creating block template: error: wrongly calculated fee");
|
|
}
|
|
CRITICAL_REGION_END();
|
|
LOG_PRINT_L1("Creating block template: height " << height <<
|
|
", median size " << median_size <<
|
|
", already generated coins " << already_generated_coins <<
|
|
", transaction size " << txs_size <<
|
|
", fee " << fee);
|
|
#endif
|
|
|
|
/*
|
|
two-phase miner transaction generation: we don't know exact block size until we prepare block, but we don't know reward until we know
|
|
block size, so first miner transaction generated with fake amount of money, and with phase we know think we know expected block size
|
|
*/
|
|
//make blocks coin-base tx looks close to real coinbase tx to get truthful blob size
|
|
bool r = construct_miner_tx(height, median_size, already_generated_coins, txs_size, fee, miner_address, b.miner_tx, ex_nonce, 11);
|
|
CHECK_AND_ASSERT_MES(r, false, "Failed to construc miner tx, first chance");
|
|
size_t cumulative_size = txs_size + get_object_blobsize(b.miner_tx);
|
|
#if defined(DEBUG_CREATE_BLOCK_TEMPLATE)
|
|
LOG_PRINT_L1("Creating block template: miner tx size " << get_object_blobsize(b.miner_tx) <<
|
|
", cumulative size " << cumulative_size);
|
|
#endif
|
|
for (size_t try_count = 0; try_count != 10; ++try_count) {
|
|
r = construct_miner_tx(height, median_size, already_generated_coins, cumulative_size, fee, miner_address, b.miner_tx, ex_nonce, 11);
|
|
|
|
CHECK_AND_ASSERT_MES(r, false, "Failed to construc miner tx, second chance");
|
|
size_t coinbase_blob_size = get_object_blobsize(b.miner_tx);
|
|
if (coinbase_blob_size > cumulative_size - txs_size) {
|
|
cumulative_size = txs_size + coinbase_blob_size;
|
|
#if defined(DEBUG_CREATE_BLOCK_TEMPLATE)
|
|
LOG_PRINT_L1("Creating block template: miner tx size " << coinbase_blob_size <<
|
|
", cumulative size " << cumulative_size << " is greater then before");
|
|
#endif
|
|
continue;
|
|
}
|
|
|
|
if (coinbase_blob_size < cumulative_size - txs_size) {
|
|
size_t delta = cumulative_size - txs_size - coinbase_blob_size;
|
|
#if defined(DEBUG_CREATE_BLOCK_TEMPLATE)
|
|
LOG_PRINT_L1("Creating block template: miner tx size " << coinbase_blob_size <<
|
|
", cumulative size " << txs_size + coinbase_blob_size <<
|
|
" is less then before, adding " << delta << " zero bytes");
|
|
#endif
|
|
b.miner_tx.extra.insert(b.miner_tx.extra.end(), delta, 0);
|
|
//here could be 1 byte difference, because of extra field counter is varint, and it can become from 1-byte len to 2-bytes len.
|
|
if (cumulative_size != txs_size + get_object_blobsize(b.miner_tx)) {
|
|
CHECK_AND_ASSERT_MES(cumulative_size + 1 == txs_size + get_object_blobsize(b.miner_tx), false, "unexpected case: cumulative_size=" << cumulative_size << " + 1 is not equal txs_cumulative_size=" << txs_size << " + get_object_blobsize(b.miner_tx)=" << get_object_blobsize(b.miner_tx));
|
|
b.miner_tx.extra.resize(b.miner_tx.extra.size() - 1);
|
|
if (cumulative_size != txs_size + get_object_blobsize(b.miner_tx)) {
|
|
//fuck, not lucky, -1 makes varint-counter size smaller, in that case we continue to grow with cumulative_size
|
|
LOG_PRINT_RED("Miner tx creation has no luck with delta_extra size = " << delta << " and " << delta - 1 , LOG_LEVEL_2);
|
|
cumulative_size += delta - 1;
|
|
continue;
|
|
}
|
|
LOG_PRINT_GREEN("Setting extra for block: " << b.miner_tx.extra.size() << ", try_count=" << try_count, LOG_LEVEL_1);
|
|
}
|
|
}
|
|
CHECK_AND_ASSERT_MES(cumulative_size == txs_size + get_object_blobsize(b.miner_tx), false, "unexpected case: cumulative_size=" << cumulative_size << " is not equal txs_cumulative_size=" << txs_size << " + get_object_blobsize(b.miner_tx)=" << get_object_blobsize(b.miner_tx));
|
|
#if defined(DEBUG_CREATE_BLOCK_TEMPLATE)
|
|
LOG_PRINT_L1("Creating block template: miner tx size " << coinbase_blob_size <<
|
|
", cumulative size " << cumulative_size << " is now good");
|
|
#endif
|
|
return true;
|
|
}
|
|
LOG_ERROR("Failed to create_block_template with " << 10 << " tries");
|
|
return false;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::complete_timestamps_vector(uint64_t start_top_height, std::vector<uint64_t>& timestamps)
|
|
{
|
|
|
|
if(timestamps.size() >= BLOCKCHAIN_TIMESTAMP_CHECK_WINDOW)
|
|
return true;
|
|
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
size_t need_elements = BLOCKCHAIN_TIMESTAMP_CHECK_WINDOW - timestamps.size();
|
|
CHECK_AND_ASSERT_MES(start_top_height < m_blocks.size(), false, "internal error: passed start_height = " << start_top_height << " not less then m_blocks.size()=" << m_blocks.size());
|
|
size_t stop_offset = start_top_height > need_elements ? start_top_height - need_elements:0;
|
|
do
|
|
{
|
|
timestamps.push_back(m_blocks[start_top_height].bl.timestamp);
|
|
if(start_top_height == 0)
|
|
break;
|
|
--start_top_height;
|
|
}while(start_top_height != stop_offset);
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::handle_alternative_block(const block& b, const crypto::hash& id, block_verification_context& bvc)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
|
|
uint64_t block_height = get_block_height(b);
|
|
if(0 == block_height)
|
|
{
|
|
LOG_PRINT_L1("Block with id: " << epee::string_tools::pod_to_hex(id) << " (as alternative) has wrong miner transaction");
|
|
bvc.m_verifivation_failed = true;
|
|
return false;
|
|
}
|
|
if (!m_checkpoints.is_alternative_block_allowed(get_current_blockchain_height(), block_height))
|
|
{
|
|
LOG_PRINT_RED_L1("Block with id: " << id
|
|
<< ENDL << " can't be accepted for alternative chain, block height: " << block_height
|
|
<< ENDL << " blockchain height: " << get_current_blockchain_height());
|
|
bvc.m_verifivation_failed = true;
|
|
return false;
|
|
}
|
|
|
|
//Block is not related with head of main chain
|
|
//first of all - look in alternative chains container
|
|
auto it_main_prev = m_blocks_index.find(b.prev_id);
|
|
auto it_prev = m_alternative_chains.find(b.prev_id);
|
|
if(it_prev != m_alternative_chains.end() || it_main_prev != m_blocks_index.end())
|
|
{
|
|
//we have new block in alternative chain
|
|
|
|
//build alternative subchain, front -> mainchain, back -> alternative head
|
|
blocks_ext_by_hash::iterator alt_it = it_prev; //m_alternative_chains.find()
|
|
std::list<blocks_ext_by_hash::iterator> alt_chain;
|
|
std::vector<uint64_t> timestamps;
|
|
while(alt_it != m_alternative_chains.end())
|
|
{
|
|
alt_chain.push_front(alt_it);
|
|
timestamps.push_back(alt_it->second.bl.timestamp);
|
|
alt_it = m_alternative_chains.find(alt_it->second.bl.prev_id);
|
|
}
|
|
|
|
if(alt_chain.size())
|
|
{
|
|
//make sure that it has right connection to main chain
|
|
CHECK_AND_ASSERT_MES(m_blocks.size() > alt_chain.front()->second.height, false, "main blockchain wrong height");
|
|
crypto::hash h = null_hash;
|
|
get_block_hash(m_blocks[alt_chain.front()->second.height - 1].bl, h);
|
|
CHECK_AND_ASSERT_MES(h == alt_chain.front()->second.bl.prev_id, false, "alternative chain has wrong connection to main chain");
|
|
complete_timestamps_vector(alt_chain.front()->second.height - 1, timestamps);
|
|
}else
|
|
{
|
|
CHECK_AND_ASSERT_MES(it_main_prev != m_blocks_index.end(), false, "internal error: broken imperative condition it_main_prev != m_blocks_index.end()");
|
|
complete_timestamps_vector(it_main_prev->second, timestamps);
|
|
}
|
|
//check timestamp correct
|
|
if(!check_block_timestamp(timestamps, b))
|
|
{
|
|
LOG_PRINT_RED_L1("Block with id: " << id
|
|
<< ENDL << " for alternative chain, has invalid timestamp: " << b.timestamp);
|
|
//add_block_as_invalid(b, id);//do not add blocks to invalid storage before proof of work check was passed
|
|
bvc.m_verifivation_failed = true;
|
|
return false;
|
|
}
|
|
|
|
block_extended_info bei = boost::value_initialized<block_extended_info>();
|
|
bei.bl = b;
|
|
bei.height = alt_chain.size() ? it_prev->second.height + 1 : it_main_prev->second + 1;
|
|
|
|
bool is_a_checkpoint;
|
|
if(!m_checkpoints.check_block(bei.height, id, is_a_checkpoint))
|
|
{
|
|
LOG_ERROR("CHECKPOINT VALIDATION FAILED");
|
|
bvc.m_verifivation_failed = true;
|
|
return false;
|
|
}
|
|
|
|
// Always check PoW for alternative blocks
|
|
m_is_in_checkpoint_zone = false;
|
|
difficulty_type current_diff = get_next_difficulty_for_alternative_chain(alt_chain, bei);
|
|
CHECK_AND_ASSERT_MES(current_diff, false, "!!!!!!! DIFFICULTY OVERHEAD !!!!!!!");
|
|
crypto::hash proof_of_work = null_hash;
|
|
get_block_longhash(bei.bl, proof_of_work, bei.height);
|
|
if(!check_hash(proof_of_work, current_diff))
|
|
{
|
|
LOG_PRINT_RED_L1("Block with id: " << id
|
|
<< ENDL << " for alternative chain, does not have enough proof of work: " << proof_of_work
|
|
<< ENDL << " expected difficulty: " << current_diff);
|
|
bvc.m_verifivation_failed = true;
|
|
return false;
|
|
}
|
|
|
|
if(!prevalidate_miner_transaction(b, bei.height))
|
|
{
|
|
LOG_PRINT_RED_L1("Block with id: " << epee::string_tools::pod_to_hex(id)
|
|
<< " (as alternative) has incorrect miner transaction.");
|
|
bvc.m_verifivation_failed = true;
|
|
return false;
|
|
|
|
}
|
|
|
|
bei.cumulative_difficulty = alt_chain.size() ? it_prev->second.cumulative_difficulty: m_blocks[it_main_prev->second].cumulative_difficulty;
|
|
bei.cumulative_difficulty += current_diff;
|
|
|
|
#ifdef _DEBUG
|
|
auto i_dres = m_alternative_chains.find(id);
|
|
CHECK_AND_ASSERT_MES(i_dres == m_alternative_chains.end(), false, "insertion of new alternative block returned as it already exist");
|
|
#endif
|
|
auto i_res = m_alternative_chains.insert(blocks_ext_by_hash::value_type(id, bei));
|
|
CHECK_AND_ASSERT_MES(i_res.second, false, "insertion of new alternative block returned as it already exist");
|
|
alt_chain.push_back(i_res.first);
|
|
|
|
if(is_a_checkpoint)
|
|
{
|
|
//do reorganize!
|
|
LOG_PRINT_GREEN("###### REORGANIZE on height: " << alt_chain.front()->second.height << " of " << m_blocks.size() - 1 <<
|
|
", checkpoint is found in alternative chain on height " << bei.height, LOG_LEVEL_0);
|
|
bool r = switch_to_alternative_blockchain(alt_chain, true);
|
|
if(r) bvc.m_added_to_main_chain = true;
|
|
else bvc.m_verifivation_failed = true;
|
|
return r;
|
|
}else if(m_blocks.back().cumulative_difficulty < bei.cumulative_difficulty) //check if difficulty bigger then in main chain
|
|
{
|
|
//do reorganize!
|
|
LOG_PRINT_GREEN("###### REORGANIZE on height: " << alt_chain.front()->second.height << " of " << m_blocks.size() - 1 << " with cum_difficulty " << m_blocks.back().cumulative_difficulty
|
|
<< ENDL << " alternative blockchain size: " << alt_chain.size() << " with cum_difficulty " << bei.cumulative_difficulty, LOG_LEVEL_0);
|
|
bool r = switch_to_alternative_blockchain(alt_chain, false);
|
|
if(r) bvc.m_added_to_main_chain = true;
|
|
else bvc.m_verifivation_failed = true;
|
|
return r;
|
|
}else
|
|
{
|
|
LOG_PRINT_BLUE("----- BLOCK ADDED AS ALTERNATIVE ON HEIGHT " << bei.height
|
|
<< ENDL << "id:\t" << id
|
|
<< ENDL << "PoW:\t" << proof_of_work
|
|
<< ENDL << "difficulty:\t" << current_diff, LOG_LEVEL_0);
|
|
return true;
|
|
}
|
|
}else
|
|
{
|
|
//block orphaned
|
|
bvc.m_marked_as_orphaned = true;
|
|
LOG_PRINT_RED_L1("Block recognized as orphaned and rejected, id = " << id);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::get_blocks(uint64_t start_offset, size_t count, std::list<block>& blocks, std::list<transaction>& txs)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
if(start_offset >= m_blocks.size())
|
|
return false;
|
|
for(size_t i = start_offset; i < start_offset + count && i < m_blocks.size();i++)
|
|
{
|
|
blocks.push_back(m_blocks[i].bl);
|
|
std::list<crypto::hash> missed_ids;
|
|
get_transactions(m_blocks[i].bl.tx_hashes, txs, missed_ids);
|
|
CHECK_AND_ASSERT_MES(!missed_ids.size(), false, "has missed transactions in own block in main blockchain");
|
|
}
|
|
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::get_blocks(uint64_t start_offset, size_t count, std::list<block>& blocks)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
if(start_offset >= m_blocks.size())
|
|
return false;
|
|
|
|
for(size_t i = start_offset; i < start_offset + count && i < m_blocks.size();i++)
|
|
blocks.push_back(m_blocks[i].bl);
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::handle_get_objects(NOTIFY_REQUEST_GET_OBJECTS::request& arg, NOTIFY_RESPONSE_GET_OBJECTS::request& rsp)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
rsp.current_blockchain_height = get_current_blockchain_height();
|
|
std::list<block> blocks;
|
|
get_blocks(arg.blocks, blocks, rsp.missed_ids);
|
|
|
|
BOOST_FOREACH(const auto& bl, blocks)
|
|
{
|
|
std::list<crypto::hash> missed_tx_id;
|
|
std::list<transaction> txs;
|
|
get_transactions(bl.tx_hashes, txs, rsp.missed_ids);
|
|
CHECK_AND_ASSERT_MES(!missed_tx_id.size(), false, "Internal error: has missed missed_tx_id.size()=" << missed_tx_id.size()
|
|
<< ENDL << "for block id = " << get_block_hash(bl));
|
|
rsp.blocks.push_back(block_complete_entry());
|
|
block_complete_entry& e = rsp.blocks.back();
|
|
//pack block
|
|
e.block = t_serializable_object_to_blob(bl);
|
|
//pack transactions
|
|
BOOST_FOREACH(transaction& tx, txs)
|
|
e.txs.push_back(t_serializable_object_to_blob(tx));
|
|
|
|
}
|
|
//get another transactions, if need
|
|
std::list<transaction> txs;
|
|
get_transactions(arg.txs, txs, rsp.missed_ids);
|
|
//pack aside transactions
|
|
BOOST_FOREACH(const auto& tx, txs)
|
|
rsp.txs.push_back(t_serializable_object_to_blob(tx));
|
|
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::get_alternative_blocks(std::list<block>& blocks)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
|
|
BOOST_FOREACH(const auto& alt_bl, m_alternative_chains)
|
|
{
|
|
blocks.push_back(alt_bl.second.bl);
|
|
}
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
size_t blockchain_storage::get_alternative_blocks_count()
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
return m_alternative_chains.size();
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::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)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
transactions_container::iterator tx_it = m_transactions.find(amount_outs[i].first);
|
|
CHECK_AND_ASSERT_MES(tx_it != m_transactions.end(), false, "internal error: transaction with id " << amount_outs[i].first << ENDL <<
|
|
", used in mounts global index for amount=" << amount << ": i=" << i << "not found in transactions index");
|
|
CHECK_AND_ASSERT_MES(tx_it->second.tx.vout.size() > amount_outs[i].second, false, "internal error: in global outs index, transaction out index="
|
|
<< amount_outs[i].second << " more than transaction outputs = " << tx_it->second.tx.vout.size() << ", for tx id = " << amount_outs[i].first);
|
|
transaction& tx = tx_it->second.tx;
|
|
CHECK_AND_ASSERT_MES(tx.vout[amount_outs[i].second].target.type() == typeid(txout_to_key), false, "unknown tx out type");
|
|
|
|
//check if transaction is unlocked
|
|
if(!is_tx_spendtime_unlocked(tx.unlock_time))
|
|
return false;
|
|
|
|
COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::out_entry& oen = *result_outs.outs.insert(result_outs.outs.end(), COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::out_entry());
|
|
oen.global_amount_index = i;
|
|
oen.out_key = boost::get<txout_to_key>(tx.vout[amount_outs[i].second].target).key;
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
size_t blockchain_storage::find_end_of_allowed_index(const std::vector<std::pair<crypto::hash, size_t> >& amount_outs)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
if(!amount_outs.size())
|
|
return 0;
|
|
size_t i = amount_outs.size();
|
|
do
|
|
{
|
|
--i;
|
|
transactions_container::iterator it = m_transactions.find(amount_outs[i].first);
|
|
CHECK_AND_ASSERT_MES(it != m_transactions.end(), 0, "internal error: failed to find transaction from outputs index with tx_id=" << amount_outs[i].first);
|
|
if(it->second.m_keeper_block_height + CRYPTONOTE_MINED_MONEY_UNLOCK_WINDOW <= get_current_blockchain_height() )
|
|
return i+1;
|
|
} while (i != 0);
|
|
return 0;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::get_random_outs_for_amounts(const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request& req, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response& res)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
BOOST_FOREACH(uint64_t amount, req.amounts)
|
|
{
|
|
COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::outs_for_amount& result_outs = *res.outs.insert(res.outs.end(), COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::outs_for_amount());
|
|
result_outs.amount = amount;
|
|
auto it = m_outputs.find(amount);
|
|
if(it == m_outputs.end())
|
|
{
|
|
LOG_PRINT_L1("COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS: not outs for amount " << amount << ", wallet should use some real outs when it lookup for some mix, so, at least one out for this amount should exist");
|
|
continue;//actually this is strange situation, wallet should use some real outs when it lookup for some mix, so, at least one out for this amount should exist
|
|
}
|
|
std::vector<std::pair<crypto::hash, size_t> >& amount_outs = it->second;
|
|
//it is not good idea to use top fresh outs, because it increases possibility of transaction canceling on split
|
|
//lets find upper bound of not fresh outs
|
|
size_t up_index_limit = find_end_of_allowed_index(amount_outs);
|
|
CHECK_AND_ASSERT_MES(up_index_limit <= amount_outs.size(), false, "internal error: find_end_of_allowed_index returned wrong index=" << up_index_limit << ", with amount_outs.size = " << amount_outs.size());
|
|
if(amount_outs.size() > req.outs_count)
|
|
{
|
|
std::set<size_t> used;
|
|
size_t try_count = 0;
|
|
for(uint64_t j = 0; j != req.outs_count && try_count < up_index_limit;)
|
|
{
|
|
size_t i = crypto::rand<size_t>()%up_index_limit;
|
|
if(used.count(i))
|
|
continue;
|
|
bool added = add_out_to_get_random_outs(amount_outs, result_outs, amount, i);
|
|
used.insert(i);
|
|
if(added)
|
|
++j;
|
|
++try_count;
|
|
}
|
|
}else
|
|
{
|
|
for(size_t i = 0; i != up_index_limit; i++)
|
|
add_out_to_get_random_outs(amount_outs, result_outs, amount, i);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::find_blockchain_supplement(const std::list<crypto::hash>& qblock_ids, uint64_t& starter_offset)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
|
|
if(!qblock_ids.size() /*|| !req.m_total_height*/)
|
|
{
|
|
LOG_PRINT_L1("Client sent wrong NOTIFY_REQUEST_CHAIN: m_block_ids.size()=" << qblock_ids.size() << /*", m_height=" << req.m_total_height <<*/ ", dropping connection");
|
|
return false;
|
|
}
|
|
//check genesis match
|
|
if(qblock_ids.back() != get_block_hash(m_blocks[0].bl))
|
|
{
|
|
LOG_PRINT_L1("Client sent wrong NOTIFY_REQUEST_CHAIN: genesis block missmatch: " << ENDL << "id: "
|
|
<< qblock_ids.back() << ", " << ENDL << "expected: " << get_block_hash(m_blocks[0].bl)
|
|
<< "," << ENDL << " dropping connection");
|
|
return false;
|
|
}
|
|
|
|
/* Figure out what blocks we should request to get state_normal */
|
|
size_t i = 0;
|
|
auto bl_it = qblock_ids.begin();
|
|
auto block_index_it = m_blocks_index.find(*bl_it);
|
|
for(; bl_it != qblock_ids.end(); bl_it++, i++)
|
|
{
|
|
block_index_it = m_blocks_index.find(*bl_it);
|
|
if(block_index_it != m_blocks_index.end())
|
|
break;
|
|
}
|
|
|
|
if(bl_it == qblock_ids.end())
|
|
{
|
|
LOG_PRINT_L1("Internal error handling connection, can't find split point");
|
|
return false;
|
|
}
|
|
|
|
if(block_index_it == m_blocks_index.end())
|
|
{
|
|
//this should NEVER happen, but, dose of paranoia in such cases is not too bad
|
|
LOG_PRINT_L1("Internal error handling connection, can't find split point");
|
|
return false;
|
|
}
|
|
|
|
//we start to put block ids INCLUDING last known id, just to make other side be sure
|
|
starter_offset = block_index_it->second;
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
uint64_t blockchain_storage::block_difficulty(size_t i)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
CHECK_AND_ASSERT_MES(i < m_blocks.size(), false, "wrong block index i = " << i << " at blockchain_storage::block_difficulty()");
|
|
if(i == 0)
|
|
return m_blocks[i].cumulative_difficulty;
|
|
|
|
return m_blocks[i].cumulative_difficulty - m_blocks[i-1].cumulative_difficulty;
|
|
}
|
|
//------------------------------------------------------------------
|
|
void blockchain_storage::print_blockchain(uint64_t start_index, uint64_t end_index)
|
|
{
|
|
std::stringstream ss;
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
if(start_index >=m_blocks.size())
|
|
{
|
|
LOG_PRINT_L1("Wrong starter index set: " << start_index << ", expected max index " << m_blocks.size()-1);
|
|
return;
|
|
}
|
|
|
|
for(size_t i = start_index; i != m_blocks.size() && i != end_index; i++)
|
|
{
|
|
ss << "height " << i << ", timestamp " << m_blocks[i].bl.timestamp << ", cumul_dif " << m_blocks[i].cumulative_difficulty << ", cumul_size " << m_blocks[i].block_cumulative_size
|
|
<< "\nid\t\t" << get_block_hash(m_blocks[i].bl)
|
|
<< "\ndifficulty\t\t" << block_difficulty(i) << ", nonce " << m_blocks[i].bl.nonce << ", tx_count " << m_blocks[i].bl.tx_hashes.size() << ENDL;
|
|
}
|
|
LOG_PRINT_L1("Current blockchain:" << ENDL << ss.str());
|
|
LOG_PRINT_L0("Blockchain printed with log level 1");
|
|
}
|
|
//------------------------------------------------------------------
|
|
void blockchain_storage::print_blockchain_index()
|
|
{
|
|
std::stringstream ss;
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
BOOST_FOREACH(const blocks_by_id_index::value_type& v, m_blocks_index)
|
|
ss << "id\t\t" << v.first << " height" << v.second << ENDL << "";
|
|
|
|
LOG_PRINT_L0("Current blockchain index:" << ENDL << ss.str());
|
|
}
|
|
//------------------------------------------------------------------
|
|
void blockchain_storage::print_blockchain_outs(const std::string& file)
|
|
{
|
|
std::stringstream ss;
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
BOOST_FOREACH(const outputs_container::value_type& v, m_outputs)
|
|
{
|
|
const std::vector<std::pair<crypto::hash, size_t> >& vals = v.second;
|
|
if(vals.size())
|
|
{
|
|
ss << "amount: " << v.first << ENDL;
|
|
for(size_t i = 0; i != vals.size(); i++)
|
|
ss << "\t" << vals[i].first << ": " << vals[i].second << ENDL;
|
|
}
|
|
}
|
|
if(epee::file_io_utils::save_string_to_file(file, ss.str()))
|
|
{
|
|
LOG_PRINT_L0("Current outputs index writen to file: " << file);
|
|
}else
|
|
{
|
|
LOG_PRINT_L0("Failed to write current outputs index to file: " << file);
|
|
}
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::find_blockchain_supplement(const std::list<crypto::hash>& qblock_ids, NOTIFY_RESPONSE_CHAIN_ENTRY::request& resp)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
if(!find_blockchain_supplement(qblock_ids, resp.start_height))
|
|
return false;
|
|
|
|
resp.total_height = get_current_blockchain_height();
|
|
size_t count = 0;
|
|
for(size_t i = resp.start_height; i != m_blocks.size() && count < BLOCKS_IDS_SYNCHRONIZING_DEFAULT_COUNT; i++, count++)
|
|
resp.m_block_ids.push_back(get_block_hash(m_blocks[i].bl));
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::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)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
if(req_start_block > 0) {
|
|
start_height = req_start_block;
|
|
} else {
|
|
if(!find_blockchain_supplement(qblock_ids, start_height))
|
|
return false;
|
|
}
|
|
|
|
total_height = get_current_blockchain_height();
|
|
size_t count = 0;
|
|
for(size_t i = start_height; i != m_blocks.size() && count < max_count; i++, count++)
|
|
{
|
|
blocks.resize(blocks.size()+1);
|
|
blocks.back().first = m_blocks[i].bl;
|
|
std::list<crypto::hash> mis;
|
|
get_transactions(m_blocks[i].bl.tx_hashes, blocks.back().second, mis);
|
|
CHECK_AND_ASSERT_MES(!mis.size(), false, "internal error, transaction from block not found");
|
|
}
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::add_block_as_invalid(const block& bl, const crypto::hash& h)
|
|
{
|
|
block_extended_info bei = AUTO_VAL_INIT(bei);
|
|
bei.bl = bl;
|
|
return add_block_as_invalid(bei, h);
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::add_block_as_invalid(const block_extended_info& bei, const crypto::hash& h)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
auto i_res = m_invalid_blocks.insert(std::map<crypto::hash, block_extended_info>::value_type(h, bei));
|
|
CHECK_AND_ASSERT_MES(i_res.second, false, "at insertion invalid by tx returned status existed");
|
|
LOG_PRINT_L1("BLOCK ADDED AS INVALID: " << h << ENDL << ", prev_id=" << bei.bl.prev_id << ", m_invalid_blocks count=" << m_invalid_blocks.size());
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::have_block(const crypto::hash& id)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
if(m_blocks_index.count(id))
|
|
return true;
|
|
if(m_alternative_chains.count(id))
|
|
return true;
|
|
/*if(m_orphaned_blocks.get<by_id>().count(id))
|
|
return true;*/
|
|
|
|
/*if(m_orphaned_by_tx.count(id))
|
|
return true;*/
|
|
if(m_invalid_blocks.count(id))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::handle_block_to_main_chain(const block& bl, block_verification_context& bvc)
|
|
{
|
|
crypto::hash id = get_block_hash(bl);
|
|
return handle_block_to_main_chain(bl, id, bvc);
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::push_transaction_to_global_outs_index(const transaction& tx, const crypto::hash& tx_id, std::vector<uint64_t>& global_indexes)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
size_t i = 0;
|
|
BOOST_FOREACH(const auto& ot, tx.vout)
|
|
{
|
|
outputs_container::mapped_type& amount_index = m_outputs[ot.amount];
|
|
amount_index.push_back(std::pair<crypto::hash, size_t>(tx_id, i));
|
|
global_indexes.push_back(amount_index.size()-1);
|
|
++i;
|
|
}
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
size_t blockchain_storage::get_total_transactions()
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
return m_transactions.size();
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::get_outs(uint64_t amount, std::list<crypto::public_key>& pkeys)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
auto it = m_outputs.find(amount);
|
|
if(it == m_outputs.end())
|
|
return true;
|
|
|
|
BOOST_FOREACH(const auto& out_entry, it->second)
|
|
{
|
|
auto tx_it = m_transactions.find(out_entry.first);
|
|
CHECK_AND_ASSERT_MES(tx_it != m_transactions.end(), false, "transactions outs global index consistency broken: wrong tx id in index");
|
|
CHECK_AND_ASSERT_MES(tx_it->second.tx.vout.size() > out_entry.second, false, "transactions outs global index consistency broken: index in tx_outx more then size");
|
|
CHECK_AND_ASSERT_MES(tx_it->second.tx.vout[out_entry.second].target.type() == typeid(txout_to_key), false, "transactions outs global index consistency broken: index in tx_outx more then size");
|
|
pkeys.push_back(boost::get<txout_to_key>(tx_it->second.tx.vout[out_entry.second].target).key);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::pop_transaction_from_global_index(const transaction& tx, const crypto::hash& tx_id)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
size_t i = tx.vout.size()-1;
|
|
BOOST_REVERSE_FOREACH(const auto& ot, tx.vout)
|
|
{
|
|
auto it = m_outputs.find(ot.amount);
|
|
CHECK_AND_ASSERT_MES(it != m_outputs.end(), false, "transactions outs global index consistency broken");
|
|
CHECK_AND_ASSERT_MES(it->second.size(), false, "transactions outs global index: empty index for amount: " << ot.amount);
|
|
CHECK_AND_ASSERT_MES(it->second.back().first == tx_id , false, "transactions outs global index consistency broken: tx id missmatch");
|
|
CHECK_AND_ASSERT_MES(it->second.back().second == i, false, "transactions outs global index consistency broken: in transaction index missmatch");
|
|
it->second.pop_back();
|
|
--i;
|
|
}
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::add_transaction_from_block(const transaction& tx, const crypto::hash& tx_id, const crypto::hash& bl_id, uint64_t bl_height)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
struct add_transaction_input_visitor: public boost::static_visitor<bool>
|
|
{
|
|
key_images_container& m_spent_keys;
|
|
const crypto::hash& m_tx_id;
|
|
const crypto::hash& m_bl_id;
|
|
add_transaction_input_visitor(key_images_container& spent_keys, const crypto::hash& tx_id, const crypto::hash& bl_id):m_spent_keys(spent_keys), m_tx_id(tx_id), m_bl_id(bl_id)
|
|
{}
|
|
bool operator()(const txin_to_key& in) const
|
|
{
|
|
const crypto::key_image& ki = in.k_image;
|
|
auto r = m_spent_keys.insert(ki);
|
|
if(!r.second)
|
|
{
|
|
//double spend detected
|
|
LOG_PRINT_L1("tx with id: " << m_tx_id << " in block id: " << m_bl_id << " has input marked as spent with key image: " << ki << ", block declined");
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool operator()(const txin_gen& tx) const{return true;}
|
|
bool operator()(const txin_to_script& tx) const{return false;}
|
|
bool operator()(const txin_to_scripthash& tx) const{return false;}
|
|
};
|
|
|
|
BOOST_FOREACH(const txin_v& in, tx.vin)
|
|
{
|
|
if(!boost::apply_visitor(add_transaction_input_visitor(m_spent_keys, tx_id, bl_id), in))
|
|
{
|
|
LOG_PRINT_L1("critical internal error: add_transaction_input_visitor failed. but here key_images should be checked");
|
|
purge_transaction_keyimages_from_blockchain(tx, false);
|
|
return false;
|
|
}
|
|
}
|
|
transaction_chain_entry ch_e;
|
|
ch_e.m_keeper_block_height = bl_height;
|
|
ch_e.tx = tx;
|
|
auto i_r = m_transactions.insert(std::pair<crypto::hash, transaction_chain_entry>(tx_id, ch_e));
|
|
if(!i_r.second)
|
|
{
|
|
LOG_PRINT_L1("tx with id: " << tx_id << " in block id: " << bl_id << " already in blockchain");
|
|
return false;
|
|
}
|
|
bool r = push_transaction_to_global_outs_index(tx, tx_id, i_r.first->second.m_global_output_indexes);
|
|
CHECK_AND_ASSERT_MES(r, false, "failed to return push_transaction_to_global_outs_index tx id " << tx_id);
|
|
LOG_PRINT_L2("Added transaction to blockchain history:" << ENDL
|
|
<< "tx_id: " << tx_id << ENDL
|
|
<< "inputs: " << tx.vin.size() << ", outs: " << tx.vout.size() << ", spend money: " << print_money(get_outs_money_amount(tx)) << "(fee: " << (is_coinbase(tx) ? "0[coinbase]" : print_money(get_tx_fee(tx))) << ")");
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::get_tx_outputs_gindexs(const crypto::hash& tx_id, std::vector<uint64_t>& indexs)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
auto it = m_transactions.find(tx_id);
|
|
if(it == m_transactions.end())
|
|
{
|
|
LOG_PRINT_RED_L1("warning: get_tx_outputs_gindexs failed to find transaction with id = " << tx_id);
|
|
return false;
|
|
}
|
|
|
|
CHECK_AND_ASSERT_MES(it->second.m_global_output_indexes.size(), false, "internal error: global indexes for transaction " << tx_id << " is empty");
|
|
indexs = it->second.m_global_output_indexes;
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::check_tx_inputs(const transaction& tx, uint64_t& max_used_block_height, crypto::hash& max_used_block_id)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
bool res = check_tx_inputs(tx, &max_used_block_height);
|
|
if(!res) return false;
|
|
CHECK_AND_ASSERT_MES(max_used_block_height < m_blocks.size(), false, "internal error: max used block index=" << max_used_block_height << " is not less then blockchain size = " << m_blocks.size());
|
|
get_block_hash(m_blocks[max_used_block_height].bl, max_used_block_id);
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::have_tx_keyimges_as_spent(const transaction &tx)
|
|
{
|
|
BOOST_FOREACH(const txin_v& in, tx.vin)
|
|
{
|
|
CHECKED_GET_SPECIFIC_VARIANT(in, const txin_to_key, in_to_key, true);
|
|
if(have_tx_keyimg_as_spent(in_to_key.k_image))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::check_tx_inputs(const transaction& tx, uint64_t* pmax_used_block_height)
|
|
{
|
|
crypto::hash tx_prefix_hash = get_transaction_prefix_hash(tx);
|
|
return check_tx_inputs(tx, tx_prefix_hash, pmax_used_block_height);
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::check_tx_inputs(const transaction& tx, const crypto::hash& tx_prefix_hash, uint64_t* pmax_used_block_height)
|
|
{
|
|
size_t sig_index = 0;
|
|
if(pmax_used_block_height)
|
|
*pmax_used_block_height = 0;
|
|
|
|
BOOST_FOREACH(const auto& txin, tx.vin)
|
|
{
|
|
CHECK_AND_ASSERT_MES(txin.type() == typeid(txin_to_key), false, "wrong type id in tx input at blockchain_storage::check_tx_inputs");
|
|
const txin_to_key& in_to_key = boost::get<txin_to_key>(txin);
|
|
|
|
CHECK_AND_ASSERT_MES(in_to_key.key_offsets.size(), false, "empty in_to_key.key_offsets in transaction with id " << get_transaction_hash(tx));
|
|
|
|
if(have_tx_keyimg_as_spent(in_to_key.k_image))
|
|
{
|
|
LOG_PRINT_L1("Key image already spent in blockchain: " << epee::string_tools::pod_to_hex(in_to_key.k_image));
|
|
return false;
|
|
}
|
|
|
|
CHECK_AND_ASSERT_MES(sig_index < tx.signatures.size(), false, "wrong transaction: not signature entry for input with index= " << sig_index);
|
|
if(!check_tx_input(in_to_key, tx_prefix_hash, tx.signatures[sig_index], pmax_used_block_height))
|
|
{
|
|
LOG_PRINT_L1("Failed to check ring signature for tx " << get_transaction_hash(tx));
|
|
return false;
|
|
}
|
|
|
|
sig_index++;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::is_tx_spendtime_unlocked(uint64_t unlock_time)
|
|
{
|
|
if(unlock_time < CRYPTONOTE_MAX_BLOCK_NUMBER)
|
|
{
|
|
//interpret as block index
|
|
if(get_current_blockchain_height()-1 + CRYPTONOTE_LOCKED_TX_ALLOWED_DELTA_BLOCKS >= unlock_time)
|
|
return true;
|
|
else
|
|
return false;
|
|
}else
|
|
{
|
|
//interpret as time
|
|
uint64_t current_time = static_cast<uint64_t>(time(NULL));
|
|
if(current_time + CRYPTONOTE_LOCKED_TX_ALLOWED_DELTA_SECONDS >= unlock_time)
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
return false;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::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)
|
|
{
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
|
|
struct outputs_visitor
|
|
{
|
|
std::vector<const crypto::public_key *>& m_results_collector;
|
|
blockchain_storage& m_bch;
|
|
outputs_visitor(std::vector<const crypto::public_key *>& results_collector, blockchain_storage& bch):m_results_collector(results_collector), m_bch(bch)
|
|
{}
|
|
bool handle_output(const transaction& tx, const tx_out& out)
|
|
{
|
|
//check tx unlock time
|
|
if(!m_bch.is_tx_spendtime_unlocked(tx.unlock_time))
|
|
{
|
|
LOG_PRINT_L1("One of outputs for one of inputs has wrong tx.unlock_time = " << tx.unlock_time);
|
|
return false;
|
|
}
|
|
|
|
if(out.target.type() != typeid(txout_to_key))
|
|
{
|
|
LOG_PRINT_L1("Output has wrong type id, which=" << out.target.which());
|
|
return false;
|
|
}
|
|
|
|
m_results_collector.push_back(&boost::get<txout_to_key>(out.target).key);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
//check ring signature
|
|
std::vector<const crypto::public_key *> output_keys;
|
|
outputs_visitor vi(output_keys, *this);
|
|
if(!scan_outputkeys_for_indexes(txin, vi, pmax_related_block_height))
|
|
{
|
|
LOG_PRINT_L1("Failed to get output keys for tx with amount = " << print_money(txin.amount) << " and count indexes " << txin.key_offsets.size());
|
|
return false;
|
|
}
|
|
|
|
if(txin.key_offsets.size() != output_keys.size())
|
|
{
|
|
LOG_PRINT_L1("Output keys for tx with amount = " << txin.amount << " and count indexes " << txin.key_offsets.size() << " returned wrong keys count " << output_keys.size());
|
|
return false;
|
|
}
|
|
CHECK_AND_ASSERT_MES(sig.size() == output_keys.size(), false, "internal error: tx signatures count=" << sig.size() << " mismatch with outputs keys count for inputs=" << output_keys.size());
|
|
if(m_is_in_checkpoint_zone)
|
|
return true;
|
|
return crypto::check_ring_signature(tx_prefix_hash, txin.k_image, output_keys, sig.data());
|
|
}
|
|
//------------------------------------------------------------------
|
|
uint64_t blockchain_storage::get_adjusted_time()
|
|
{
|
|
//TODO: add collecting median time
|
|
return time(NULL);
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::check_block_timestamp_main(const block& b)
|
|
{
|
|
if(b.timestamp > get_adjusted_time() + CRYPTONOTE_BLOCK_FUTURE_TIME_LIMIT)
|
|
{
|
|
LOG_PRINT_L1("Timestamp of block with id: " << get_block_hash(b) << ", " << b.timestamp << ", bigger than adjusted time + 2 hours");
|
|
return false;
|
|
}
|
|
|
|
std::vector<uint64_t> timestamps;
|
|
size_t offset = m_blocks.size() <= BLOCKCHAIN_TIMESTAMP_CHECK_WINDOW ? 0: m_blocks.size()- BLOCKCHAIN_TIMESTAMP_CHECK_WINDOW;
|
|
for(;offset!= m_blocks.size(); ++offset)
|
|
timestamps.push_back(m_blocks[offset].bl.timestamp);
|
|
|
|
return check_block_timestamp(std::move(timestamps), b);
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::check_block_timestamp(std::vector<uint64_t> timestamps, const block& b)
|
|
{
|
|
if(timestamps.size() < BLOCKCHAIN_TIMESTAMP_CHECK_WINDOW)
|
|
return true;
|
|
|
|
uint64_t median_ts = epee::misc_utils::median(timestamps);
|
|
|
|
if(b.timestamp < median_ts)
|
|
{
|
|
LOG_PRINT_L1("Timestamp of block with id: " << get_block_hash(b) << ", " << b.timestamp << ", less than median of last " << BLOCKCHAIN_TIMESTAMP_CHECK_WINDOW << " blocks, " << median_ts);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::handle_block_to_main_chain(const block& bl, const crypto::hash& id, block_verification_context& bvc)
|
|
{
|
|
TIME_MEASURE_START(block_processing_time);
|
|
CRITICAL_REGION_LOCAL(m_blockchain_lock);
|
|
if(bl.prev_id != get_tail_id())
|
|
{
|
|
LOG_PRINT_L1("Block with id: " << id << ENDL
|
|
<< "has wrong prev_id: " << bl.prev_id << ENDL
|
|
<< "expected: " << get_tail_id());
|
|
return false;
|
|
}
|
|
|
|
if(!check_block_timestamp_main(bl))
|
|
{
|
|
LOG_PRINT_L1("Block with id: " << id << ENDL
|
|
<< "has invalid timestamp: " << bl.timestamp);
|
|
//add_block_as_invalid(bl, id);//do not add blocks to invalid storage befor proof of work check was passed
|
|
bvc.m_verifivation_failed = true;
|
|
return false;
|
|
}
|
|
|
|
//check proof of work
|
|
TIME_MEASURE_START(target_calculating_time);
|
|
difficulty_type current_diffic = get_difficulty_for_next_block();
|
|
CHECK_AND_ASSERT_MES(current_diffic, false, "!!!!!!!!! difficulty overhead !!!!!!!!!");
|
|
TIME_MEASURE_FINISH(target_calculating_time);
|
|
TIME_MEASURE_START(longhash_calculating_time);
|
|
crypto::hash proof_of_work = null_hash;
|
|
|
|
// 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_L1("Block with id: " << id << ENDL
|
|
<< "does not have enough proof of work: " << proof_of_work << ENDL
|
|
<< "unexpected 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))
|
|
{
|
|
LOG_ERROR("CHECKPOINT VALIDATION FAILED");
|
|
bvc.m_verifivation_failed = true;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
TIME_MEASURE_FINISH(longhash_calculating_time);
|
|
|
|
if(!prevalidate_miner_transaction(bl, m_blocks.size()))
|
|
{
|
|
LOG_PRINT_L1("Block with id: " << id
|
|
<< " failed to pass prevalidation");
|
|
bvc.m_verifivation_failed = true;
|
|
return false;
|
|
}
|
|
size_t coinbase_blob_size = get_object_blobsize(bl.miner_tx);
|
|
size_t cumulative_block_size = coinbase_blob_size;
|
|
//process transactions
|
|
if(!add_transaction_from_block(bl.miner_tx, get_transaction_hash(bl.miner_tx), id, get_current_blockchain_height()))
|
|
{
|
|
LOG_PRINT_L1("Block with id: " << id << " failed to add transaction to blockchain storage");
|
|
bvc.m_verifivation_failed = true;
|
|
return false;
|
|
}
|
|
size_t tx_processed_count = 0;
|
|
uint64_t fee_summary = 0;
|
|
BOOST_FOREACH(const crypto::hash& tx_id, bl.tx_hashes)
|
|
{
|
|
transaction tx;
|
|
size_t blob_size = 0;
|
|
uint64_t fee = 0;
|
|
if(!m_tx_pool.take_tx(tx_id, tx, blob_size, fee))
|
|
{
|
|
LOG_PRINT_L1("Block with id: " << id << "has at least one unknown transaction with id: " << tx_id);
|
|
purge_block_data_from_blockchain(bl, tx_processed_count);
|
|
//add_block_as_invalid(bl, id);
|
|
bvc.m_verifivation_failed = true;
|
|
return false;
|
|
}
|
|
if(!check_tx_inputs(tx))
|
|
{
|
|
LOG_PRINT_L1("Block with id: " << id << "has at least one transaction (id: " << tx_id << ") with wrong inputs.");
|
|
cryptonote::tx_verification_context tvc = AUTO_VAL_INIT(tvc);
|
|
bool add_res = m_tx_pool.add_tx(tx, tvc, true);
|
|
CHECK_AND_ASSERT_MES2(add_res, "handle_block_to_main_chain: failed to add transaction back to transaction pool");
|
|
purge_block_data_from_blockchain(bl, tx_processed_count);
|
|
add_block_as_invalid(bl, id);
|
|
LOG_PRINT_L1("Block with id " << id << " added as invalid becouse of wrong inputs in transactions");
|
|
bvc.m_verifivation_failed = true;
|
|
return false;
|
|
}
|
|
|
|
if(!add_transaction_from_block(tx, tx_id, id, get_current_blockchain_height()))
|
|
{
|
|
LOG_PRINT_L1("Block with id: " << id << " failed to add transaction to blockchain storage");
|
|
cryptonote::tx_verification_context tvc = AUTO_VAL_INIT(tvc);
|
|
bool add_res = m_tx_pool.add_tx(tx, tvc, true);
|
|
CHECK_AND_ASSERT_MES2(add_res, "handle_block_to_main_chain: failed to add transaction back to transaction pool");
|
|
purge_block_data_from_blockchain(bl, tx_processed_count);
|
|
bvc.m_verifivation_failed = true;
|
|
return false;
|
|
}
|
|
fee_summary += fee;
|
|
cumulative_block_size += blob_size;
|
|
++tx_processed_count;
|
|
}
|
|
uint64_t base_reward = 0;
|
|
uint64_t already_generated_coins = m_blocks.size() ? m_blocks.back().already_generated_coins:0;
|
|
if(!validate_miner_transaction(bl, cumulative_block_size, fee_summary, base_reward, already_generated_coins))
|
|
{
|
|
LOG_PRINT_L1("Block with id: " << id
|
|
<< " has incorrect miner transaction");
|
|
purge_block_data_from_blockchain(bl, tx_processed_count);
|
|
bvc.m_verifivation_failed = true;
|
|
return false;
|
|
}
|
|
|
|
|
|
block_extended_info bei = boost::value_initialized<block_extended_info>();
|
|
bei.bl = bl;
|
|
bei.block_cumulative_size = cumulative_block_size;
|
|
bei.cumulative_difficulty = current_diffic;
|
|
bei.already_generated_coins = already_generated_coins + base_reward;
|
|
if(m_blocks.size())
|
|
bei.cumulative_difficulty += m_blocks.back().cumulative_difficulty;
|
|
|
|
bei.height = m_blocks.size();
|
|
|
|
auto ind_res = m_blocks_index.insert(std::pair<crypto::hash, size_t>(id, bei.height));
|
|
if(!ind_res.second)
|
|
{
|
|
LOG_PRINT_L1("block with id: " << id << " already in block indexes");
|
|
purge_block_data_from_blockchain(bl, tx_processed_count);
|
|
bvc.m_verifivation_failed = true;
|
|
return false;
|
|
}
|
|
|
|
m_blocks.push_back(bei);
|
|
update_next_comulative_size_limit();
|
|
TIME_MEASURE_FINISH(block_processing_time);
|
|
LOG_PRINT_L1("+++++ BLOCK SUCCESSFULLY ADDED" << ENDL << "id:\t" << id
|
|
<< ENDL << "PoW:\t" << proof_of_work
|
|
<< ENDL << "HEIGHT " << bei.height << ", difficulty:\t" << current_diffic
|
|
<< ENDL << "block reward: " << print_money(fee_summary + base_reward) << "(" << print_money(base_reward) << " + " << print_money(fee_summary)
|
|
<< "), coinbase_blob_size: " << coinbase_blob_size << ", cumulative size: " << cumulative_block_size
|
|
<< ", " << block_processing_time << "("<< target_calculating_time << "/" << longhash_calculating_time << ")ms");
|
|
|
|
bvc.m_added_to_main_chain = true;
|
|
/*if(!m_orphanes_reorganize_in_work)
|
|
review_orphaned_blocks_with_new_block_id(id, true);*/
|
|
|
|
m_tx_pool.on_blockchain_inc(bei.height, id);
|
|
//LOG_PRINT_L0("BLOCK: " << ENDL << "" << dump_obj_as_json(bei.bl));
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::update_next_comulative_size_limit()
|
|
{
|
|
std::vector<size_t> sz;
|
|
get_last_n_blocks_sizes(sz, CRYPTONOTE_REWARD_BLOCKS_WINDOW);
|
|
|
|
uint64_t median = epee::misc_utils::median(sz);
|
|
if(median <= CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE)
|
|
median = CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE;
|
|
|
|
m_current_block_cumul_sz_limit = median*2;
|
|
return true;
|
|
}
|
|
//------------------------------------------------------------------
|
|
bool blockchain_storage::add_new_block(const block& bl_, block_verification_context& bvc)
|
|
{
|
|
//copy block here to let modify block.target
|
|
block bl = bl_;
|
|
crypto::hash id = get_block_hash(bl);
|
|
CRITICAL_REGION_LOCAL(m_tx_pool);//to avoid deadlock lets lock tx_pool for whole add/reorganize process
|
|
CRITICAL_REGION_LOCAL1(m_blockchain_lock);
|
|
if(have_block(id))
|
|
{
|
|
LOG_PRINT_L3("block with id = " << id << " already exists");
|
|
bvc.m_already_exists = true;
|
|
return false;
|
|
}
|
|
|
|
//check that block refers to chain tail
|
|
if(!(bl.prev_id == get_tail_id()))
|
|
{
|
|
//chain switching or wrong block
|
|
bvc.m_added_to_main_chain = false;
|
|
return handle_alternative_block(bl, id, bvc);
|
|
//never relay alternative blocks
|
|
}
|
|
|
|
return handle_block_to_main_chain(bl, id, bvc);
|
|
}
|