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278 lines
14 KiB
C++
278 lines
14 KiB
C++
// Copyright (c) 2014-2015, 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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#pragma once
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#include <boost/serialization/serialization.hpp>
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#include <boost/serialization/version.hpp>
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#include <boost/serialization/list.hpp>
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#include <boost/multi_index_container.hpp>
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#include <boost/multi_index/global_fun.hpp>
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#include <boost/multi_index/hashed_index.hpp>
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#include <boost/multi_index/member.hpp>
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#include <boost/foreach.hpp>
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#include <atomic>
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#include <unordered_map>
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#include <unordered_set>
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#include "syncobj.h"
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#include "string_tools.h"
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#include "cryptonote_basic.h"
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#include "common/util.h"
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#include "cryptonote_protocol/cryptonote_protocol_defs.h"
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#include "rpc/core_rpc_server_commands_defs.h"
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#include "difficulty.h"
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#include "cryptonote_core/cryptonote_format_utils.h"
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#include "verification_context.h"
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#include "crypto/hash.h"
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#include "checkpoints.h"
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#include "blockchain_db/blockchain_db.h"
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namespace cryptonote
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{
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class tx_memory_pool;
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enum blockchain_db_sync_mode
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{
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db_sync,
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db_async,
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db_nosync
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};
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/************************************************************************/
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/* */
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/************************************************************************/
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class Blockchain
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{
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public:
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struct transaction_chain_entry
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{
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transaction tx;
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uint64_t m_keeper_block_height;
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size_t m_blob_size;
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std::vector<uint64_t> m_global_output_indexes;
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};
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struct block_extended_info
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{
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block bl;
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uint64_t height;
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size_t block_cumulative_size;
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difficulty_type cumulative_difficulty;
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uint64_t already_generated_coins;
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};
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Blockchain(tx_memory_pool& tx_pool);
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bool init(BlockchainDB* db, const bool testnet = false);
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bool deinit();
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void set_checkpoints(checkpoints&& chk_pts) { m_checkpoints = chk_pts; }
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//bool push_new_block();
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bool get_blocks(uint64_t start_offset, size_t count, std::list<block>& blocks, std::list<transaction>& txs) const;
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bool get_blocks(uint64_t start_offset, size_t count, std::list<block>& blocks) const;
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bool get_alternative_blocks(std::list<block>& blocks) const;
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size_t get_alternative_blocks_count() const;
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crypto::hash get_block_id_by_height(uint64_t height) const;
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bool get_block_by_hash(const crypto::hash &h, block &blk) const;
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void get_all_known_block_ids(std::list<crypto::hash> &main, std::list<crypto::hash> &alt, std::list<crypto::hash> &invalid) const;
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bool prepare_handle_incoming_blocks(const std::list<block_complete_entry> &blocks);
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bool cleanup_handle_incoming_blocks(bool force_sync = false);
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template<class archive_t>
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void serialize(archive_t & ar, const unsigned int version);
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bool have_tx(const crypto::hash &id) const;
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bool have_tx_keyimges_as_spent(const transaction &tx) const;
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bool have_tx_keyimg_as_spent(const crypto::key_image &key_im) const;
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uint64_t get_current_blockchain_height() const;
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crypto::hash get_tail_id() const;
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crypto::hash get_tail_id(uint64_t& height) const;
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difficulty_type get_difficulty_for_next_block();
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bool add_new_block(const block& bl_, block_verification_context& bvc);
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bool reset_and_set_genesis_block(const block& b);
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bool create_block_template(block& b, const account_public_address& miner_address, difficulty_type& di, uint64_t& height, const blobdata& ex_nonce);
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bool have_block(const crypto::hash& id) const;
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size_t get_total_transactions() const;
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bool get_short_chain_history(std::list<crypto::hash>& ids) const;
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bool find_blockchain_supplement(const std::list<crypto::hash>& qblock_ids, NOTIFY_RESPONSE_CHAIN_ENTRY::request& resp) const;
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bool find_blockchain_supplement(const std::list<crypto::hash>& qblock_ids, uint64_t& starter_offset) const;
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bool find_blockchain_supplement(const uint64_t req_start_block, const std::list<crypto::hash>& qblock_ids, std::list<std::pair<block, std::list<transaction> > >& blocks, uint64_t& total_height, uint64_t& start_height, size_t max_count) const;
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bool handle_get_objects(NOTIFY_REQUEST_GET_OBJECTS::request& arg, NOTIFY_RESPONSE_GET_OBJECTS::request& rsp);
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bool handle_get_objects(const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request& req, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response& res);
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bool get_random_outs_for_amounts(const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request& req, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response& res) const;
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bool get_tx_outputs_gindexs(const crypto::hash& tx_id, std::vector<uint64_t>& indexs) const;
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bool store_blockchain();
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bool check_tx_inputs(const transaction& tx, uint64_t& pmax_used_block_height, crypto::hash& max_used_block_id, bool kept_by_block = false);
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uint64_t get_current_cumulative_blocksize_limit() const;
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bool is_storing_blockchain()const{return m_is_blockchain_storing;}
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uint64_t block_difficulty(uint64_t i) const;
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template<class t_ids_container, class t_blocks_container, class t_missed_container>
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bool get_blocks(const t_ids_container& block_ids, t_blocks_container& blocks, t_missed_container& missed_bs) const;
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template<class t_ids_container, class t_tx_container, class t_missed_container>
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bool get_transactions(const t_ids_container& txs_ids, t_tx_container& txs, t_missed_container& missed_txs) const;
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//debug functions
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void print_blockchain(uint64_t start_index, uint64_t end_index);
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void print_blockchain_index();
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void print_blockchain_outs(const std::string& file);
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void check_against_checkpoints(const checkpoints& points, bool enforce);
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void set_enforce_dns_checkpoints(bool enforce);
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bool update_checkpoints(const std::string& file_path, bool check_dns);
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// user options, must be called before calling init()
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void set_user_options(uint64_t block_threads, uint64_t blocks_per_sync,
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blockchain_db_sync_mode sync_mode, bool fast_sync);
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void set_show_time_stats(bool stats) { m_show_time_stats = stats; }
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BlockchainDB& get_db()
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{
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return *m_db;
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}
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void output_scan_worker(const uint64_t amount,const std::vector<uint64_t> &offsets,
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std::vector<output_data_t> &outputs, std::unordered_map<crypto::hash,
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cryptonote::transaction> &txs) const;
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void block_longhash_worker(const uint64_t height, const std::vector<block> &blocks,
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std::unordered_map<crypto::hash, crypto::hash> &map) const;
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private:
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typedef std::unordered_map<crypto::hash, size_t> blocks_by_id_index;
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typedef std::unordered_map<crypto::hash, transaction_chain_entry> transactions_container;
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typedef std::unordered_set<crypto::key_image> key_images_container;
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typedef std::vector<block_extended_info> blocks_container;
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typedef std::unordered_map<crypto::hash, block_extended_info> blocks_ext_by_hash;
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typedef std::unordered_map<crypto::hash, block> blocks_by_hash;
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typedef std::map<uint64_t, std::vector<std::pair<crypto::hash, size_t>>> outputs_container; //crypto::hash - tx hash, size_t - index of out in transaction
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BlockchainDB* m_db;
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tx_memory_pool& m_tx_pool;
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mutable epee::critical_section m_blockchain_lock; // TODO: add here reader/writer lock
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// main chain
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blocks_container m_blocks; // height -> block_extended_info
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blocks_by_id_index m_blocks_index; // crypto::hash -> height
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transactions_container m_transactions;
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size_t m_current_block_cumul_sz_limit;
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std::unordered_map<crypto::hash, std::unordered_map<crypto::key_image, std::vector<output_data_t>>> m_scan_table;
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std::unordered_map<crypto::hash, std::pair<bool, uint64_t>> m_check_tx_inputs_table;
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std::unordered_map<crypto::hash, crypto::hash> m_blocks_longhash_table;
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std::unordered_map<crypto::hash, std::unordered_map<crypto::key_image, bool>> m_check_txin_table;
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// SHA-3 hashes for each block and for fast pow checking
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std::vector<crypto::hash> m_blocks_hash_check;
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std::vector<crypto::hash> m_blocks_txs_check;
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blockchain_db_sync_mode m_db_sync_mode;
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bool m_fast_sync;
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bool m_show_time_stats;
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uint64_t m_db_blocks_per_sync;
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uint64_t m_max_prepare_blocks_threads;
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uint64_t m_fake_pow_calc_time;
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uint64_t m_fake_scan_time;
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uint64_t m_sync_counter;
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std::vector<uint64_t> m_timestamps;
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std::vector<difficulty_type> m_difficulties;
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uint64_t m_timestamps_and_difficulties_height;
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boost::asio::io_service m_async_service;
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boost::thread_group m_async_pool;
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std::unique_ptr<boost::asio::io_service::work> m_async_work_idle;
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// all alternative chains
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blocks_ext_by_hash m_alternative_chains; // crypto::hash -> block_extended_info
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// some invalid blocks
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blocks_ext_by_hash m_invalid_blocks; // crypto::hash -> block_extended_info
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outputs_container m_outputs;
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checkpoints m_checkpoints;
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std::atomic<bool> m_is_in_checkpoint_zone;
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std::atomic<bool> m_is_blockchain_storing;
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bool m_enforce_dns_checkpoints;
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template<class visitor_t>
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inline bool scan_outputkeys_for_indexes(const txin_to_key& tx_in_to_key, visitor_t &vis, const crypto::hash &tx_prefix_hash, uint64_t* pmax_related_block_height = NULL) const;
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bool check_tx_input(const txin_to_key& txin, const crypto::hash& tx_prefix_hash, const std::vector<crypto::signature>& sig, std::vector<crypto::public_key> &output_keys, uint64_t* pmax_related_block_height);
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bool check_tx_inputs(const transaction& tx, uint64_t* pmax_used_block_height = NULL);
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bool switch_to_alternative_blockchain(std::list<blocks_ext_by_hash::iterator>& alt_chain, bool discard_disconnected_chain);
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block pop_block_from_blockchain();
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bool handle_block_to_main_chain(const block& bl, block_verification_context& bvc);
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bool handle_block_to_main_chain(const block& bl, const crypto::hash& id, block_verification_context& bvc);
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bool handle_alternative_block(const block& b, const crypto::hash& id, block_verification_context& bvc);
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difficulty_type get_next_difficulty_for_alternative_chain(const std::list<blocks_ext_by_hash::iterator>& alt_chain, block_extended_info& bei) const;
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bool prevalidate_miner_transaction(const block& b, uint64_t height);
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bool validate_miner_transaction(const block& b, size_t cumulative_block_size, uint64_t fee, uint64_t& base_reward, uint64_t already_generated_coins);
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bool validate_transaction(const block& b, uint64_t height, const transaction& tx);
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bool rollback_blockchain_switching(std::list<block>& original_chain, uint64_t rollback_height);
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bool add_transaction_from_block(const transaction& tx, const crypto::hash& tx_id, const crypto::hash& bl_id, uint64_t bl_height);
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bool push_transaction_to_global_outs_index(const transaction& tx, const crypto::hash& tx_id, std::vector<uint64_t>& global_indexes);
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bool pop_transaction_from_global_index(const transaction& tx, const crypto::hash& tx_id);
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void get_last_n_blocks_sizes(std::vector<size_t>& sz, size_t count) const;
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void add_out_to_get_random_outs(COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::outs_for_amount& result_outs, uint64_t amount, size_t i) const;
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bool is_tx_spendtime_unlocked(uint64_t unlock_time) const;
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bool add_block_as_invalid(const block& bl, const crypto::hash& h);
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bool add_block_as_invalid(const block_extended_info& bei, const crypto::hash& h);
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bool check_block_timestamp(const block& b) const;
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bool check_block_timestamp(std::vector<uint64_t>& timestamps, const block& b) const;
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uint64_t get_adjusted_time() const;
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bool complete_timestamps_vector(uint64_t start_height, std::vector<uint64_t>& timestamps);
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bool update_next_cumulative_size_limit();
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bool check_for_double_spend(const transaction& tx, key_images_container& keys_this_block) const;
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void get_timestamp_and_difficulty(uint64_t ×tamp, difficulty_type &difficulty, const int offset) const;
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void check_ring_signature(const crypto::hash &tx_prefix_hash, const crypto::key_image &key_image,
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const std::vector<crypto::public_key> &pubkeys, const std::vector<crypto::signature> &sig, uint64_t &result);
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};
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/************************************************************************/
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/* */
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/************************************************************************/
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#define CURRENT_BLOCKCHAIN_STORAGE_ARCHIVE_VER 12
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//------------------------------------------------------------------
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} // namespace cryptonote
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BOOST_CLASS_VERSION(cryptonote::Blockchain, CURRENT_BLOCKCHAIN_STORAGE_ARCHIVE_VER)
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