/// @file /// @author rfree (current maintainer/user in monero.cc project - most of code is from CryptoNote) /// @brief This is the original cryptonote protocol network-events handler, modified by us // Copyright (c) 2014-2020, 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 #include #include "byte_slice.h" #include "math_helper.h" #include "storages/levin_abstract_invoke2.h" #include "warnings.h" #include "cryptonote_protocol_defs.h" #include "cryptonote_protocol_handler_common.h" #include "block_queue.h" #include "common/perf_timer.h" #include "cryptonote_basic/connection_context.h" #include "net/levin_base.h" #include "p2p/net_node_common.h" #include PUSH_WARNINGS DISABLE_VS_WARNINGS(4355) #define LOCALHOST_INT 2130706433 #define CURRENCY_PROTOCOL_MAX_OBJECT_REQUEST_COUNT 100 static_assert(CURRENCY_PROTOCOL_MAX_OBJECT_REQUEST_COUNT >= BLOCKS_SYNCHRONIZING_DEFAULT_COUNT_PRE_V4, "Invalid CURRENCY_PROTOCOL_MAX_OBJECT_REQUEST_COUNT"); namespace cryptonote { class cryptonote_protocol_handler_base_pimpl; class cryptonote_protocol_handler_base { private: std::unique_ptr mI; public: cryptonote_protocol_handler_base(); virtual ~cryptonote_protocol_handler_base(); void handler_request_blocks_history(std::list& ids); // before asking for list of objects, we can change the list still void handler_response_blocks_now(size_t packet_size); virtual double get_avg_block_size() = 0; virtual double estimate_one_block_size() noexcept; // for estimating size of blocks to download }; template class t_cryptonote_protocol_handler: public i_cryptonote_protocol, cryptonote_protocol_handler_base { public: typedef cryptonote_connection_context connection_context; typedef t_cryptonote_protocol_handler cryptonote_protocol_handler; typedef CORE_SYNC_DATA payload_type; t_cryptonote_protocol_handler(t_core& rcore, nodetool::i_p2p_endpoint* p_net_layout, bool offline = false); BEGIN_INVOKE_MAP2(cryptonote_protocol_handler) HANDLE_NOTIFY_T2(NOTIFY_NEW_BLOCK, &cryptonote_protocol_handler::handle_notify_new_block) HANDLE_NOTIFY_T2(NOTIFY_NEW_TRANSACTIONS, &cryptonote_protocol_handler::handle_notify_new_transactions) HANDLE_NOTIFY_T2(NOTIFY_REQUEST_GET_OBJECTS, &cryptonote_protocol_handler::handle_request_get_objects) HANDLE_NOTIFY_T2(NOTIFY_RESPONSE_GET_OBJECTS, &cryptonote_protocol_handler::handle_response_get_objects) HANDLE_NOTIFY_T2(NOTIFY_REQUEST_CHAIN, &cryptonote_protocol_handler::handle_request_chain) HANDLE_NOTIFY_T2(NOTIFY_RESPONSE_CHAIN_ENTRY, &cryptonote_protocol_handler::handle_response_chain_entry) HANDLE_NOTIFY_T2(NOTIFY_NEW_FLUFFY_BLOCK, &cryptonote_protocol_handler::handle_notify_new_fluffy_block) HANDLE_NOTIFY_T2(NOTIFY_REQUEST_FLUFFY_MISSING_TX, &cryptonote_protocol_handler::handle_request_fluffy_missing_tx) HANDLE_NOTIFY_T2(NOTIFY_GET_TXPOOL_COMPLEMENT, &cryptonote_protocol_handler::handle_notify_get_txpool_complement) END_INVOKE_MAP2() bool on_idle(); bool init(const boost::program_options::variables_map& vm); bool deinit(); void set_p2p_endpoint(nodetool::i_p2p_endpoint* p2p); //bool process_handshake_data(const blobdata& data, cryptonote_connection_context& context); bool process_payload_sync_data(const CORE_SYNC_DATA& hshd, cryptonote_connection_context& context, bool is_inital); bool get_payload_sync_data(epee::byte_slice& data); bool get_payload_sync_data(CORE_SYNC_DATA& hshd); bool on_callback(cryptonote_connection_context& context); t_core& get_core(){return m_core;} virtual bool is_synchronized() const final { return !no_sync() && m_synchronized; } void log_connections(); std::list get_connections(); const block_queue &get_block_queue() const { return m_block_queue; } void stop(); void on_connection_close(cryptonote_connection_context &context); void set_max_out_peers(unsigned int max) { m_max_out_peers = max; } bool no_sync() const { return m_no_sync; } void set_no_sync(bool value) { m_no_sync = value; } std::string get_peers_overview() const; std::pair get_next_needed_pruning_stripe() const; bool needs_new_sync_connections() const; bool is_busy_syncing(); private: //----------------- commands handlers ---------------------------------------------- int handle_notify_new_block(int command, NOTIFY_NEW_BLOCK::request& arg, cryptonote_connection_context& context); int handle_notify_new_transactions(int command, NOTIFY_NEW_TRANSACTIONS::request& arg, cryptonote_connection_context& context); int handle_request_get_objects(int command, NOTIFY_REQUEST_GET_OBJECTS::request& arg, cryptonote_connection_context& context); int handle_response_get_objects(int command, NOTIFY_RESPONSE_GET_OBJECTS::request& arg, cryptonote_connection_context& context); int handle_request_chain(int command, NOTIFY_REQUEST_CHAIN::request& arg, cryptonote_connection_context& context); int handle_response_chain_entry(int command, NOTIFY_RESPONSE_CHAIN_ENTRY::request& arg, cryptonote_connection_context& context); int handle_notify_new_fluffy_block(int command, NOTIFY_NEW_FLUFFY_BLOCK::request& arg, cryptonote_connection_context& context); int handle_request_fluffy_missing_tx(int command, NOTIFY_REQUEST_FLUFFY_MISSING_TX::request& arg, cryptonote_connection_context& context); int handle_notify_get_txpool_complement(int command, NOTIFY_GET_TXPOOL_COMPLEMENT::request& arg, cryptonote_connection_context& context); //----------------- i_bc_protocol_layout --------------------------------------- virtual bool relay_block(NOTIFY_NEW_BLOCK::request& arg, cryptonote_connection_context& exclude_context); virtual bool relay_transactions(NOTIFY_NEW_TRANSACTIONS::request& arg, const boost::uuids::uuid& source, epee::net_utils::zone zone, relay_method tx_relay); //---------------------------------------------------------------------------------- //bool get_payload_sync_data(HANDSHAKE_DATA::request& hshd, cryptonote_connection_context& context); bool should_drop_connection(cryptonote_connection_context& context, uint32_t next_stripe); bool request_missing_objects(cryptonote_connection_context& context, bool check_having_blocks, bool force_next_span = false); size_t get_synchronizing_connections_count(); bool on_connection_synchronized(); bool should_download_next_span(cryptonote_connection_context& context, bool standby); bool should_ask_for_pruned_data(cryptonote_connection_context& context, uint64_t first_block_height, uint64_t nblocks, bool check_block_weights) const; void drop_connection(cryptonote_connection_context &context, bool add_fail, bool flush_all_spans); void drop_connection_with_score(cryptonote_connection_context &context, unsigned int score, bool flush_all_spans); void drop_connections(const epee::net_utils::network_address address); bool kick_idle_peers(); bool check_standby_peers(); bool update_sync_search(); int try_add_next_blocks(cryptonote_connection_context &context); void notify_new_stripe(cryptonote_connection_context &context, uint32_t stripe); size_t skip_unneeded_hashes(cryptonote_connection_context& context, bool check_block_queue) const; bool request_txpool_complement(cryptonote_connection_context &context); void hit_score(cryptonote_connection_context &context, int32_t score); t_core& m_core; nodetool::p2p_endpoint_stub m_p2p_stub; nodetool::i_p2p_endpoint* m_p2p; std::atomic m_syncronized_connections_count; std::atomic m_synchronized; std::atomic m_stopping; std::atomic m_no_sync; std::atomic m_ask_for_txpool_complement; boost::mutex m_sync_lock; block_queue m_block_queue; epee::math_helper::once_a_time_seconds<8> m_idle_peer_kicker; epee::math_helper::once_a_time_milliseconds<100> m_standby_checker; epee::math_helper::once_a_time_seconds<101> m_sync_search_checker; epee::math_helper::once_a_time_seconds<43> m_bad_peer_checker; std::atomic m_max_out_peers; tools::PerformanceTimer m_sync_timer, m_add_timer; uint64_t m_last_add_end_time; uint64_t m_sync_spans_downloaded, m_sync_old_spans_downloaded, m_sync_bad_spans_downloaded; uint64_t m_sync_download_chain_size, m_sync_download_objects_size; size_t m_block_download_max_size; bool m_sync_pruned_blocks; // Values for sync time estimates boost::posix_time::ptime m_sync_start_time; boost::posix_time::ptime m_period_start_time; uint64_t m_sync_start_height; uint64_t m_period_start_height; uint64_t get_estimated_remaining_sync_seconds(uint64_t current_blockchain_height, uint64_t target_blockchain_height); std::string get_periodic_sync_estimate(uint64_t current_blockchain_height, uint64_t target_blockchain_height); boost::mutex m_buffer_mutex; double get_avg_block_size(); boost::circular_buffer m_avg_buffer = boost::circular_buffer(10); boost::mutex m_bad_peer_check_lock; template bool post_notify(typename t_parameter::request& arg, cryptonote_connection_context& context) { LOG_PRINT_L2("[" << epee::net_utils::print_connection_context_short(context) << "] post " << typeid(t_parameter).name() << " -->"); epee::levin::message_writer out{256 * 1024}; // optimize for block responses epee::serialization::store_t_to_binary(arg, out.buffer); //handler_response_blocks_now(blob.size()); // XXX return m_p2p->invoke_notify_to_peer(t_parameter::ID, std::move(out), context); } }; } // namespace POP_WARNINGS