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https://github.com/monero-project/monero.git
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cryptonote_protocol_handler: add race condition demo
This commit is contained in:
anon
parent
5b8d714a4b
commit
ded2f3aa85
@ -310,5 +310,597 @@ TEST(node_server, bind_same_p2p_port)
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EXPECT_TRUE(init(new_node(), port_another));
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}
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TEST(cryptonote_protocol_handler, race_condition)
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{
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struct contexts {
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using basic = epee::net_utils::connection_context_base;
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using cryptonote = cryptonote::cryptonote_connection_context;
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using p2p = nodetool::p2p_connection_context_t<cryptonote>;
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};
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using context_t = contexts::p2p;
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using handler_t = epee::levin::async_protocol_handler<context_t>;
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using connection_t = epee::net_utils::connection<handler_t>;
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using connection_ptr = boost::shared_ptr<connection_t>;
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using connections_t = std::vector<connection_ptr>;
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using shared_state_t = typename connection_t::shared_state;
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using shared_state_ptr = std::shared_ptr<shared_state_t>;
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using io_context_t = boost::asio::io_service;
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using event_t = epee::simple_event;
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using ec_t = boost::system::error_code;
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auto create_conn_pair = [](connection_ptr in, connection_ptr out) {
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using endpoint_t = boost::asio::ip::tcp::endpoint;
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using acceptor_t = boost::asio::ip::tcp::acceptor;
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io_context_t io_context;
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endpoint_t endpoint(boost::asio::ip::address::from_string("127.0.0.1"), 5262);
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acceptor_t acceptor(io_context);
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ec_t ec;
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acceptor.open(endpoint.protocol(), ec);
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EXPECT_EQ(ec.value(), 0);
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acceptor.set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));
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acceptor.bind(endpoint, ec);
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EXPECT_EQ(ec.value(), 0);
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acceptor.listen(boost::asio::socket_base::max_listen_connections, ec);
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EXPECT_EQ(ec.value(), 0);
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out->socket().open(endpoint.protocol(), ec);
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EXPECT_EQ(ec.value(), 0);
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acceptor.async_accept(in->socket(), [](const ec_t &ec){});
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out->socket().async_connect(endpoint, [](const ec_t &ec){});
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io_context.run();
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acceptor.close(ec);
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EXPECT_EQ(ec.value(), 0);
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EXPECT_TRUE(in->start(true, true));
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EXPECT_TRUE(out->start(false, true));
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return std::make_pair<>(std::move(in), std::move(out));
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};
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auto get_conn_tag = [](connection_t &conn){
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context_t context;
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conn.get_context(context);
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return context.m_connection_id;
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};
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using work_t = boost::asio::io_service::work;
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using work_ptr = std::shared_ptr<work_t>;
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using workers_t = std::vector<std::thread>;
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using commands_handler_t = epee::levin::levin_commands_handler<context_t>;
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using p2p_endpoint_t = nodetool::i_p2p_endpoint<contexts::cryptonote>;
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using core_t = cryptonote::core;
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using core_ptr = std::unique_ptr<core_t>;
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using core_protocol_t = cryptonote::t_cryptonote_protocol_handler<core_t>;
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using core_protocol_ptr = std::shared_ptr<core_protocol_t>;
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using block_t = cryptonote::block;
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using diff_t = cryptonote::difficulty_type;
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using reward_t = uint64_t;
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using height_t = uint64_t;
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struct span {
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using blocks = epee::span<const block_t>;
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};
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auto get_block_template = [](
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core_t &core,
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block_t &block,
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diff_t &diff,
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reward_t &reward
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){
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auto &storage = core.get_blockchain_storage();
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const auto height = storage.get_current_blockchain_height();
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const auto hardfork = storage.get_current_hard_fork_version();
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block.major_version = hardfork;
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block.minor_version = storage.get_ideal_hard_fork_version();
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block.prev_id = storage.get_tail_id();
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auto &db = storage.get_db();
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block.timestamp = db.get_top_block_timestamp();
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block.nonce = 0xACAB;
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block.miner_tx.vin.clear();
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block.miner_tx.vout.clear();
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block.miner_tx.extra.clear();
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block.miner_tx.version = hardfork >= 4 ? 2 : 1;
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block.miner_tx.unlock_time = height + CRYPTONOTE_MINED_MONEY_UNLOCK_WINDOW;
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block.miner_tx.vin.push_back(cryptonote::txin_gen{height});
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cryptonote::add_tx_pub_key_to_extra(block.miner_tx, {});
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cryptonote::get_block_reward(
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db.get_block_weight(height - 1),
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{},
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db.get_block_already_generated_coins(height - 1),
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reward,
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hardfork
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);
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block.miner_tx.vout.push_back(cryptonote::tx_out{reward, cryptonote::txout_to_key{}});
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diff = storage.get_difficulty_for_next_block();
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};
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struct stat {
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struct chain {
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diff_t diff;
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reward_t reward;
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};
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};
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auto add_block = [](
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core_t &core,
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const block_t &block,
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const stat::chain &stat
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){
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core.get_blockchain_storage().get_db().batch_start({}, {});
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core.get_blockchain_storage().get_db().add_block(
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{block, cryptonote::block_to_blob(block)},
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cryptonote::get_transaction_weight(block.miner_tx),
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core.get_blockchain_storage().get_next_long_term_block_weight(
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cryptonote::get_transaction_weight(block.miner_tx)
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),
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stat.diff,
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stat.reward,
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{}
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);
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core.get_blockchain_storage().get_db().batch_stop();
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};
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struct messages {
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struct core {
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using sync = cryptonote::CORE_SYNC_DATA;
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};
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using handshake = nodetool::COMMAND_HANDSHAKE_T<core::sync>;
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};
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struct net_node_t: commands_handler_t, p2p_endpoint_t {
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using span_t = epee::span<const uint8_t>;
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using string_t = std::string;
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using zone_t = epee::net_utils::zone;
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using uuid_t = boost::uuids::uuid;
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using relay_t = cryptonote::relay_method;
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using blobs_t = std::vector<cryptonote::blobdata>;
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using id_t = nodetool::peerid_type;
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using callback_t = std::function<bool(contexts::cryptonote &, id_t, uint32_t)>;
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using address_t = epee::net_utils::network_address;
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using connections_t = std::vector<std::pair<zone_t, uuid_t>>;
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struct bans {
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using subnets = std::map<epee::net_utils::ipv4_network_subnet, time_t>;
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using hosts = std::map<std::string, time_t>;
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};
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struct slice {
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using bytes = epee::byte_slice;
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};
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shared_state_ptr shared_state;
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core_protocol_ptr core_protocol;
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virtual int invoke(int command, const span_t in, slice::bytes &out, context_t &context) override {
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if (core_protocol) {
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if (command == messages::handshake::ID) {
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return epee::net_utils::buff_to_t_adapter<void, typename messages::handshake::request, typename messages::handshake::response>(
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command,
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in,
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out,
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[this](int command, typename messages::handshake::request &in, typename messages::handshake::response &out, context_t &context){
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core_protocol->process_payload_sync_data(in.payload_data, context, true);
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core_protocol->get_payload_sync_data(out.payload_data);
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return 1;
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},
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context
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);
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}
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bool handled;
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return core_protocol->handle_invoke_map(false, command, in, out, context, handled);
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}
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else
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return {};
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}
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virtual int notify(int command, const span_t in, context_t &context) override {
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if (core_protocol) {
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bool handled;
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slice::bytes out;
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return core_protocol->handle_invoke_map(true, command, in, out, context, handled);
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}
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else
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return {};
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}
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virtual void callback(context_t &context) override {
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if (core_protocol)
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core_protocol->on_callback(context);
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}
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virtual void on_connection_new(context_t&) override {}
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virtual void on_connection_close(context_t &context) override {
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if (core_protocol)
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core_protocol->on_connection_close(context);
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}
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virtual ~net_node_t() override {}
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virtual bool add_host_fail(const address_t&, unsigned int = {}) override {
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return {};
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}
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virtual bool block_host(address_t address, time_t = {}, bool = {}) override {
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return {};
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}
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virtual bool drop_connection(const contexts::basic& context) override {
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if (shared_state)
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return shared_state->close(context.m_connection_id);
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else
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return {};
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}
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virtual bool for_connection(const uuid_t& uuid, callback_t f) override {
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if (shared_state)
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return shared_state->for_connection(uuid,[&f](context_t &context){
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return f(context, context.peer_id, context.support_flags);
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});
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else
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return {};
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}
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virtual bool invoke_command_to_peer(int command, const span_t in, string_t& out, const contexts::basic& context) override {
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if (shared_state)
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return shared_state->invoke(command, in, out, context.m_connection_id);
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else
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return {};
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}
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virtual bool invoke_notify_to_peer(int command, const span_t in, const contexts::basic& context) override {
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if (shared_state)
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return shared_state->notify(command, in, context.m_connection_id);
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else
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return {};
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}
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virtual bool relay_notify_to_list(int command, const span_t in, connections_t connections) override {
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if (shared_state) {
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for (auto &e: connections)
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shared_state->notify(command, in, e.second);
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}
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return {};
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}
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virtual bool unblock_host(const address_t&) override {
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return {};
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}
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virtual zone_t send_txs(blobs_t, const zone_t, const uuid_t&, relay_t) override {
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return {};
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}
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virtual bans::subnets get_blocked_subnets() override {
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return {};
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}
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virtual bans::hosts get_blocked_hosts() override {
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return {};
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}
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virtual uint64_t get_public_connections_count() override {
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if (shared_state)
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return shared_state->get_connections_count();
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else
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return {};
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}
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virtual void add_used_stripe_peer(const contexts::cryptonote&) override {}
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virtual void clear_used_stripe_peers() override {}
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virtual void remove_used_stripe_peer(const contexts::cryptonote&) override {}
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virtual void for_each_connection(callback_t f) override {
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if (shared_state)
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shared_state->foreach_connection([&f](context_t &context){
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return f(context, context.peer_id, context.support_flags);
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});
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}
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virtual void request_callback(const contexts::basic &context) override {
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if (shared_state)
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shared_state->request_callback(context.m_connection_id);
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}
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};
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auto conduct_handshake = [get_conn_tag](net_node_t &net_node, connection_ptr conn){
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event_t handshaked;
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net_node.shared_state->for_connection(
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get_conn_tag(*conn),
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[&handshaked, &net_node](context_t &context){
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typename messages::handshake::request msg;
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net_node.core_protocol->get_payload_sync_data(msg.payload_data);
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epee::net_utils::async_invoke_remote_command2<typename messages::handshake::response>(
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context,
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messages::handshake::ID,
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msg,
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*net_node.shared_state,
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[&handshaked, &net_node](int code, const typename messages::handshake::response &msg, context_t &context){
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EXPECT_TRUE(code >= 0);
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net_node.core_protocol->process_payload_sync_data(msg.payload_data, context, true);
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handshaked.raise();
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},
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P2P_DEFAULT_HANDSHAKE_INVOKE_TIMEOUT
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);
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return true;
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}
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);
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handshaked.wait();
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};
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using path_t = boost::filesystem::path;
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auto create_dir = []{
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ec_t ec;
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path_t path = boost::filesystem::temp_directory_path() / boost::filesystem::unique_path("daemon-%%%%%%%%%%%%%%%%", ec);
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if (ec)
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return path_t{};
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auto success = boost::filesystem::create_directory(path, ec);
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if (not ec && success)
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return path;
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return path_t{};
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};
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auto remove_tree = [](const path_t &path){
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ec_t ec;
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boost::filesystem::remove_all(path, ec);
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};
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using options_t = boost::program_options::variables_map;
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struct daemon_t {
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options_t options;
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core_ptr core;
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core_protocol_ptr core_protocol;
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net_node_t net_node;
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shared_state_ptr shared_state;
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connections_t conn;
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};
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struct daemons_t {
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daemon_t main;
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daemon_t alt;
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};
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using options_description_t = boost::program_options::options_description;
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const auto dir = create_dir();
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ASSERT_TRUE(not dir.empty());
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daemons_t daemon{
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{
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[&dir]{
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options_t options;
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boost::program_options::store(
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boost::program_options::command_line_parser({
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"--data-dir",
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(dir / "main").string(),
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"--disable-dns-checkpoints",
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"--check-updates=disabled",
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"--fixed-difficulty=1",
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"--block-sync-size=1",
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"--db-sync-mode=fastest:async:50000",
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}).options([]{
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options_description_t options_description{};
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cryptonote::core::init_options(options_description);
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return options_description;
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}()).run(),
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options
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);
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return options;
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}(),
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{},
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{},
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{},
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{},
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{},
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},
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{
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[&dir]{
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options_t options;
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boost::program_options::store(
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boost::program_options::command_line_parser({
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"--data-dir",
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(dir / "alt").string(),
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"--disable-dns-checkpoints",
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"--check-updates=disabled",
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"--fixed-difficulty=1",
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"--block-sync-size=1",
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"--db-sync-mode=fastest:async:50000",
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}).options([]{
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options_description_t options_description{};
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cryptonote::core::init_options(options_description);
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return options_description;
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}()).run(),
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options
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);
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return options;
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}(),
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{},
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{},
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{},
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{},
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{},
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},
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};
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io_context_t io_context;
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work_ptr work = std::make_shared<work_t>(io_context);
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workers_t workers;
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while (workers.size() < 4) {
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workers.emplace_back([&io_context]{
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io_context.run();
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});
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}
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connection_t::set_rate_up_limit(std::numeric_limits<int64_t>::max());
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connection_t::set_rate_down_limit(std::numeric_limits<int64_t>::max());
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{
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daemon.main.core = core_ptr(new core_t(nullptr));
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daemon.main.core->init(daemon.main.options, nullptr, nullptr);
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daemon.main.net_node.core_protocol = daemon.main.core_protocol = core_protocol_ptr(new core_protocol_t(
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*daemon.main.core, &daemon.main.net_node, {}
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));
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daemon.main.core->set_cryptonote_protocol(daemon.main.core_protocol.get());
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daemon.main.core_protocol->init(daemon.main.options);
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daemon.main.net_node.shared_state = daemon.main.shared_state = std::make_shared<shared_state_t>();
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daemon.main.shared_state->set_handler(&daemon.main.net_node);
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daemon.alt.shared_state = std::make_shared<shared_state_t>();
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daemon.alt.shared_state->set_handler(&daemon.alt.net_node);
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struct {
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event_t prepare;
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event_t check;
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event_t finish;
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} events;
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auto connections = create_conn_pair(
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connection_ptr(new connection_t(io_context, daemon.main.shared_state, {}, {})),
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connection_ptr(new connection_t(io_context, daemon.alt.shared_state, {}, {}))
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);
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{
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auto conn = connections.first;
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auto shared_state = daemon.main.shared_state;
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const auto tag = get_conn_tag(*conn);
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conn->strand_.post([tag, conn, shared_state, &events]{
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shared_state->for_connection(tag, [](context_t &context){
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context.m_expect_height = -1;
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context.m_expect_response = -1;
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context.m_last_request_time = boost::date_time::min_date_time;
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context.m_score = 0;
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context.m_state = contexts::cryptonote::state_synchronizing;
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return true;
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});
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events.prepare.raise();
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events.check.wait();
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shared_state->for_connection(tag, [](context_t &context){
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EXPECT_TRUE(context.m_expect_height == -1);
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EXPECT_TRUE(context.m_expect_response == -1);
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EXPECT_TRUE(context.m_last_request_time == boost::date_time::min_date_time);
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EXPECT_TRUE(context.m_score == 0);
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EXPECT_TRUE(context.m_state == contexts::cryptonote::state_synchronizing);
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return true;
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});
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events.finish.raise();
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});
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}
|
||||
events.prepare.wait();
|
||||
daemon.main.core_protocol->on_idle();
|
||||
events.check.raise();
|
||||
events.finish.wait();
|
||||
|
||||
connections.first->strand_.post([connections]{
|
||||
connections.first->cancel();
|
||||
});
|
||||
connections.second->strand_.post([connections]{
|
||||
connections.second->cancel();
|
||||
});
|
||||
connections.first.reset();
|
||||
connections.second.reset();
|
||||
while (daemon.main.shared_state->sock_count);
|
||||
while (daemon.alt.shared_state->sock_count);
|
||||
daemon.main.core_protocol->deinit();
|
||||
daemon.main.core->stop();
|
||||
daemon.main.core->deinit();
|
||||
daemon.main.net_node.shared_state.reset();
|
||||
daemon.main.shared_state.reset();
|
||||
daemon.main.core_protocol.reset();
|
||||
daemon.main.core.reset();
|
||||
daemon.alt.shared_state.reset();
|
||||
}
|
||||
|
||||
{
|
||||
daemon.main.core = core_ptr(new core_t(nullptr));
|
||||
daemon.main.core->init(daemon.main.options, nullptr, nullptr);
|
||||
daemon.main.net_node.core_protocol = daemon.main.core_protocol = core_protocol_ptr(new core_protocol_t(
|
||||
*daemon.main.core, &daemon.main.net_node, {}
|
||||
));
|
||||
daemon.main.core->set_cryptonote_protocol(daemon.main.core_protocol.get());
|
||||
daemon.main.core->set_checkpoints({});
|
||||
daemon.main.core_protocol->init(daemon.main.options);
|
||||
daemon.main.net_node.shared_state = daemon.main.shared_state = std::make_shared<shared_state_t>();
|
||||
daemon.main.shared_state->set_handler(&daemon.main.net_node);
|
||||
daemon.alt.core = core_ptr(new core_t(nullptr));
|
||||
daemon.alt.core->init(daemon.alt.options, nullptr, nullptr);
|
||||
daemon.alt.net_node.core_protocol = daemon.alt.core_protocol = core_protocol_ptr(new core_protocol_t(
|
||||
*daemon.alt.core, &daemon.alt.net_node, {}
|
||||
));
|
||||
daemon.alt.core->set_cryptonote_protocol(daemon.alt.core_protocol.get());
|
||||
daemon.alt.core->set_checkpoints({});
|
||||
daemon.alt.core_protocol->init(daemon.alt.options);
|
||||
daemon.alt.net_node.shared_state = daemon.alt.shared_state = std::make_shared<shared_state_t>();
|
||||
daemon.alt.shared_state->set_handler(&daemon.alt.net_node);
|
||||
|
||||
struct {
|
||||
io_context_t io_context;
|
||||
work_ptr work;
|
||||
workers_t workers;
|
||||
} check;
|
||||
check.work = std::make_shared<work_t>(check.io_context);
|
||||
check.workers.emplace_back([&check]{
|
||||
check.io_context.run();
|
||||
});
|
||||
while (daemon.main.conn.size() < 1) {
|
||||
daemon.main.conn.emplace_back(new connection_t(check.io_context, daemon.main.shared_state, {}, {}));
|
||||
daemon.alt.conn.emplace_back(new connection_t(io_context, daemon.alt.shared_state, {}, {}));
|
||||
create_conn_pair(daemon.main.conn.back(), daemon.alt.conn.back());
|
||||
conduct_handshake(daemon.alt.net_node, daemon.alt.conn.back());
|
||||
}
|
||||
struct {
|
||||
event_t prepare;
|
||||
event_t sync;
|
||||
event_t finish;
|
||||
} events;
|
||||
{
|
||||
auto conn = daemon.main.conn.back();
|
||||
auto shared_state = daemon.main.shared_state;
|
||||
const auto tag = get_conn_tag(*conn);
|
||||
conn->strand_.post([tag, conn, shared_state, &events]{
|
||||
shared_state->for_connection(tag, [](context_t &context){
|
||||
EXPECT_TRUE(context.m_state == contexts::cryptonote::state_normal);
|
||||
return true;
|
||||
});
|
||||
events.prepare.raise();
|
||||
events.sync.wait();
|
||||
shared_state->for_connection(tag, [](context_t &context){
|
||||
EXPECT_TRUE(context.m_state == contexts::cryptonote::state_normal);
|
||||
return true;
|
||||
});
|
||||
events.finish.raise();
|
||||
});
|
||||
}
|
||||
events.prepare.wait();
|
||||
daemon.main.core->get_blockchain_storage().add_block_notify(
|
||||
[&events](height_t height, span::blocks blocks){
|
||||
if (height >= CRYPTONOTE_PRUNING_STRIPE_SIZE)
|
||||
events.sync.raise();
|
||||
}
|
||||
);
|
||||
{
|
||||
stat::chain stat{
|
||||
daemon.alt.core->get_blockchain_storage().get_db().get_block_cumulative_difficulty(
|
||||
daemon.alt.core->get_current_blockchain_height() - 1
|
||||
),
|
||||
daemon.alt.core->get_blockchain_storage().get_db().get_block_already_generated_coins(
|
||||
daemon.alt.core->get_current_blockchain_height() - 1
|
||||
),
|
||||
};
|
||||
while (daemon.alt.core->get_current_blockchain_height() < CRYPTONOTE_PRUNING_STRIPE_SIZE + CRYPTONOTE_PRUNING_TIP_BLOCKS) {
|
||||
block_t block;
|
||||
diff_t diff;
|
||||
reward_t reward;
|
||||
get_block_template(*daemon.alt.core, block, diff, reward);
|
||||
stat.diff += diff;
|
||||
stat.reward = stat.reward < (MONEY_SUPPLY - stat.reward) ? stat.reward + reward : MONEY_SUPPLY;
|
||||
add_block(*daemon.alt.core, block, stat);
|
||||
if (daemon.main.core->get_current_blockchain_height() + 1 < CRYPTONOTE_PRUNING_STRIPE_SIZE)
|
||||
add_block(*daemon.main.core, block, stat);
|
||||
}
|
||||
}
|
||||
while (daemon.main.conn.size() < 2) {
|
||||
daemon.main.conn.emplace_back(new connection_t(io_context, daemon.main.shared_state, {}, {}));
|
||||
daemon.alt.conn.emplace_back(new connection_t(io_context, daemon.alt.shared_state, {}, {}));
|
||||
create_conn_pair(daemon.main.conn.back(), daemon.alt.conn.back());
|
||||
conduct_handshake(daemon.alt.net_node, daemon.alt.conn.back());
|
||||
}
|
||||
events.finish.wait();
|
||||
|
||||
for (;daemon.main.conn.size(); daemon.main.conn.pop_back()) {
|
||||
auto conn = daemon.main.conn.back();
|
||||
conn->strand_.post([conn]{
|
||||
conn->cancel();
|
||||
});
|
||||
}
|
||||
for (;daemon.alt.conn.size(); daemon.alt.conn.pop_back()) {
|
||||
auto conn = daemon.alt.conn.back();
|
||||
conn->strand_.post([conn]{
|
||||
conn->cancel();
|
||||
});
|
||||
}
|
||||
while (daemon.main.shared_state->sock_count);
|
||||
while (daemon.alt.shared_state->sock_count);
|
||||
daemon.main.core_protocol->deinit();
|
||||
daemon.main.core->stop();
|
||||
daemon.main.core->deinit();
|
||||
daemon.main.net_node.shared_state.reset();
|
||||
daemon.main.shared_state.reset();
|
||||
daemon.main.core_protocol.reset();
|
||||
daemon.main.core.reset();
|
||||
daemon.alt.core_protocol->deinit();
|
||||
daemon.alt.core->stop();
|
||||
daemon.alt.core->deinit();
|
||||
daemon.alt.net_node.shared_state.reset();
|
||||
daemon.alt.shared_state.reset();
|
||||
daemon.alt.core_protocol.reset();
|
||||
daemon.alt.core.reset();
|
||||
check.work.reset();
|
||||
for (auto& w: check.workers) {
|
||||
w.join();
|
||||
}
|
||||
}
|
||||
|
||||
work.reset();
|
||||
for (auto& w: workers) {
|
||||
w.join();
|
||||
}
|
||||
remove_tree(dir);
|
||||
}
|
||||
|
||||
namespace nodetool { template class node_server<cryptonote::t_cryptonote_protocol_handler<test_core>>; }
|
||||
namespace cryptonote { template class t_cryptonote_protocol_handler<test_core>; }
|
||||
|
||||
Loading…
Reference in New Issue
Block a user