diff options
Diffstat (limited to 'src/cryptonote_core/blockchain.h')
| -rw-r--r-- | src/cryptonote_core/blockchain.h | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/src/cryptonote_core/blockchain.h b/src/cryptonote_core/blockchain.h new file mode 100644 index 000000000..bc13901d2 --- /dev/null +++ b/src/cryptonote_core/blockchain.h @@ -0,0 +1,229 @@ +// Copyright (c) 2014, The Monero Project +// +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without modification, are +// permitted provided that the following conditions are met: +// +// 1. Redistributions of source code must retain the above copyright notice, this list of +// conditions and the following disclaimer. +// +// 2. Redistributions in binary form must reproduce the above copyright notice, this list +// of conditions and the following disclaimer in the documentation and/or other +// materials provided with the distribution. +// +// 3. Neither the name of the copyright holder nor the names of its contributors may be +// used to endorse or promote products derived from this software without specific +// prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY +// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL +// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF +// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// +// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers + +#pragma once +#include <boost/serialization/serialization.hpp> +#include <boost/serialization/version.hpp> +#include <boost/serialization/list.hpp> +#include <boost/multi_index_container.hpp> +#include <boost/multi_index/global_fun.hpp> +#include <boost/multi_index/hashed_index.hpp> +#include <boost/multi_index/member.hpp> +#include <boost/foreach.hpp> +#include <atomic> + +#include "syncobj.h" +#include "string_tools.h" +#include "cryptonote_basic.h" +#include "common/util.h" +#include "cryptonote_protocol/cryptonote_protocol_defs.h" +#include "rpc/core_rpc_server_commands_defs.h" +#include "difficulty.h" +#include "cryptonote_core/cryptonote_format_utils.h" +#include "verification_context.h" +#include "crypto/hash.h" +#include "checkpoints.h" +#include "blockchain_db/blockchain_db.h" + +namespace cryptonote +{ + class tx_memory_pool; + + /************************************************************************/ + /* */ + /************************************************************************/ + class Blockchain + { + public: + struct transaction_chain_entry + { + transaction tx; + uint64_t m_keeper_block_height; + size_t m_blob_size; + std::vector<uint64_t> m_global_output_indexes; + }; + + struct block_extended_info + { + block bl; + uint64_t height; + size_t block_cumulative_size; + difficulty_type cumulative_difficulty; + uint64_t already_generated_coins; + }; + + Blockchain(tx_memory_pool& tx_pool); + + bool init(BlockchainDB* db, const bool testnet = false); + bool deinit(); + + void set_checkpoints(checkpoints&& chk_pts) { m_checkpoints = chk_pts; } + + //bool push_new_block(); + bool get_blocks(uint64_t start_offset, size_t count, std::list<block>& blocks, std::list<transaction>& txs) const; + bool get_blocks(uint64_t start_offset, size_t count, std::list<block>& blocks) const; + bool get_alternative_blocks(std::list<block>& blocks) const; + size_t get_alternative_blocks_count() const; + crypto::hash get_block_id_by_height(uint64_t height) const; + bool get_block_by_hash(const crypto::hash &h, block &blk) const; + void get_all_known_block_ids(std::list<crypto::hash> &main, std::list<crypto::hash> &alt, std::list<crypto::hash> &invalid) const; + + template<class archive_t> + void serialize(archive_t & ar, const unsigned int version); + + bool have_tx(const crypto::hash &id) const; + bool have_tx_keyimges_as_spent(const transaction &tx) const; + bool have_tx_keyimg_as_spent(const crypto::key_image &key_im) const; + + template<class visitor_t> + bool scan_outputkeys_for_indexes(const txin_to_key& tx_in_to_key, visitor_t& vis, uint64_t* pmax_related_block_height = NULL) const; + + uint64_t get_current_blockchain_height() const; + crypto::hash get_tail_id() const; + crypto::hash get_tail_id(uint64_t& height) const; + difficulty_type get_difficulty_for_next_block() const; + bool add_new_block(const block& bl_, block_verification_context& bvc); + bool reset_and_set_genesis_block(const block& b); + bool create_block_template(block& b, const account_public_address& miner_address, difficulty_type& di, uint64_t& height, const blobdata& ex_nonce) const; + bool have_block(const crypto::hash& id) const; + size_t get_total_transactions() const; + bool get_short_chain_history(std::list<crypto::hash>& ids) const; + bool find_blockchain_supplement(const std::list<crypto::hash>& qblock_ids, NOTIFY_RESPONSE_CHAIN_ENTRY::request& resp) const; + bool find_blockchain_supplement(const std::list<crypto::hash>& qblock_ids, uint64_t& starter_offset) const; + 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; + bool handle_get_objects(NOTIFY_REQUEST_GET_OBJECTS::request& arg, NOTIFY_RESPONSE_GET_OBJECTS::request& rsp); + bool handle_get_objects(const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request& req, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response& res); + bool get_random_outs_for_amounts(const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request& req, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response& res) const; + bool get_tx_outputs_gindexs(const crypto::hash& tx_id, std::vector<uint64_t>& indexs) const; + bool store_blockchain(); + bool check_tx_input(const txin_to_key& txin, const crypto::hash& tx_prefix_hash, const std::vector<crypto::signature>& sig, uint64_t* pmax_related_block_height = NULL) const; + bool check_tx_inputs(const transaction& tx, uint64_t* pmax_used_block_height = NULL) const; + bool check_tx_inputs(const transaction& tx, uint64_t& pmax_used_block_height, crypto::hash& max_used_block_id) const; + uint64_t get_current_cumulative_blocksize_limit() const; + bool is_storing_blockchain()const{return m_is_blockchain_storing;} + uint64_t block_difficulty(uint64_t i) const; + + template<class t_ids_container, class t_blocks_container, class t_missed_container> + bool get_blocks(const t_ids_container& block_ids, t_blocks_container& blocks, t_missed_container& missed_bs) const; + + template<class t_ids_container, class t_tx_container, class t_missed_container> + bool get_transactions(const t_ids_container& txs_ids, t_tx_container& txs, t_missed_container& missed_txs) const; + + //debug functions + void print_blockchain(uint64_t start_index, uint64_t end_index); + void print_blockchain_index(); + void print_blockchain_outs(const std::string& file); + + void check_against_checkpoints(const checkpoints& points, bool enforce); + void set_enforce_dns_checkpoints(bool enforce); + bool update_checkpoints(const std::string& file_path, bool check_dns); + + BlockchainDB& get_db() + { + return *m_db; + } + + private: + typedef std::unordered_map<crypto::hash, size_t> blocks_by_id_index; + typedef std::unordered_map<crypto::hash, transaction_chain_entry> transactions_container; + typedef std::unordered_set<crypto::key_image> key_images_container; + typedef std::vector<block_extended_info> blocks_container; + typedef std::unordered_map<crypto::hash, block_extended_info> blocks_ext_by_hash; + typedef std::unordered_map<crypto::hash, block> blocks_by_hash; + typedef std::map<uint64_t, std::vector<std::pair<crypto::hash, size_t>>> outputs_container; //crypto::hash - tx hash, size_t - index of out in transaction + + BlockchainDB* m_db; + + tx_memory_pool& m_tx_pool; + mutable epee::critical_section m_blockchain_lock; // TODO: add here reader/writer lock + + // main chain + blocks_container m_blocks; // height -> block_extended_info + blocks_by_id_index m_blocks_index; // crypto::hash -> height + transactions_container m_transactions; + key_images_container m_spent_keys; + size_t m_current_block_cumul_sz_limit; + + + // all alternative chains + blocks_ext_by_hash m_alternative_chains; // crypto::hash -> block_extended_info + + // some invalid blocks + blocks_ext_by_hash m_invalid_blocks; // crypto::hash -> block_extended_info + outputs_container m_outputs; + + + checkpoints m_checkpoints; + std::atomic<bool> m_is_in_checkpoint_zone; + std::atomic<bool> m_is_blockchain_storing; + bool m_enforce_dns_checkpoints; + + bool switch_to_alternative_blockchain(std::list<blocks_ext_by_hash::iterator>& alt_chain, bool discard_disconnected_chain); + block pop_block_from_blockchain(); + bool purge_transaction_from_blockchain(const crypto::hash& tx_id); + bool purge_transaction_keyimages_from_blockchain(const transaction& tx, bool strict_check); + + bool handle_block_to_main_chain(const block& bl, block_verification_context& bvc); + bool handle_block_to_main_chain(const block& bl, const crypto::hash& id, block_verification_context& bvc); + bool handle_alternative_block(const block& b, const crypto::hash& id, block_verification_context& bvc); + difficulty_type get_next_difficulty_for_alternative_chain(const std::list<blocks_ext_by_hash::iterator>& alt_chain, block_extended_info& bei) const; + bool prevalidate_miner_transaction(const block& b, uint64_t height); + bool validate_miner_transaction(const block& b, size_t cumulative_block_size, uint64_t fee, uint64_t& base_reward, uint64_t already_generated_coins); + bool validate_transaction(const block& b, uint64_t height, const transaction& tx); + bool rollback_blockchain_switching(std::list<block>& original_chain, uint64_t rollback_height); + bool add_transaction_from_block(const transaction& tx, const crypto::hash& tx_id, const crypto::hash& bl_id, uint64_t bl_height); + bool push_transaction_to_global_outs_index(const transaction& tx, const crypto::hash& tx_id, std::vector<uint64_t>& global_indexes); + bool pop_transaction_from_global_index(const transaction& tx, const crypto::hash& tx_id); + void get_last_n_blocks_sizes(std::vector<size_t>& sz, size_t count) const; + 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; + bool is_tx_spendtime_unlocked(uint64_t unlock_time) const; + bool add_block_as_invalid(const block& bl, const crypto::hash& h); + bool add_block_as_invalid(const block_extended_info& bei, const crypto::hash& h); + bool check_block_timestamp(const block& b) const; + bool check_block_timestamp(std::vector<uint64_t>& timestamps, const block& b) const; + uint64_t get_adjusted_time() const; + bool complete_timestamps_vector(uint64_t start_height, std::vector<uint64_t>& timestamps); + bool update_next_cumulative_size_limit(); + + bool check_for_double_spend(const transaction& tx, key_images_container& keys_this_block) const; + }; + + + /************************************************************************/ + /* */ + /************************************************************************/ + + #define CURRENT_BLOCKCHAIN_STORAGE_ARCHIVE_VER 12 + + //------------------------------------------------------------------ + +} // namespace cryptonote + +BOOST_CLASS_VERSION(cryptonote::Blockchain, CURRENT_BLOCKCHAIN_STORAGE_ARCHIVE_VER) |