connection: add segfault and deadlocks demo
This commit is contained in:
anon
j-berman
parent
b54d5ae383
commit
724ff21447
@ -31,6 +31,8 @@
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#include <boost/chrono/chrono.hpp>
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#include <boost/thread/condition_variable.hpp>
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#include <boost/thread/mutex.hpp>
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#include <condition_variable>
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#include <mutex>
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#include "gtest/gtest.h"
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@ -276,6 +278,11 @@ TEST(test_epee_connection, test_lifetime)
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ASSERT_TRUE(shared_state->get_connections_count() == 0);
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constexpr auto DELAY = 30;
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constexpr auto TIMEOUT = 1;
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while (server.get_connections_count()) {
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server.get_config_shared()->del_in_connections(
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server.get_config_shared()->get_in_connections_count()
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);
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}
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server.get_config_shared()->set_handler(new command_handler_t(DELAY), &command_handler_t::destroy);
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for (auto i = 0; i < N; ++i) {
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tag = create_connection();
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@ -332,7 +339,7 @@ TEST(test_epee_connection, test_lifetime)
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),
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&command_handler_t::destroy
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);
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for (auto i = 0; i < N; ++i) {
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for (auto i = 0; i < N * N * N; ++i) {
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{
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connection_ptr conn(new connection_t(io_context, shared_state, {}, {}));
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conn->socket().connect(endpoint);
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@ -342,6 +349,7 @@ TEST(test_epee_connection, test_lifetime)
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}
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ASSERT_TRUE(shared_state->get_connections_count() == 1);
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shared_state->del_out_connections(1);
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while (shared_state->sock_count);
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ASSERT_TRUE(shared_state->get_connections_count() == 0);
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}
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@ -452,7 +460,11 @@ TEST(test_epee_connection, test_lifetime)
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}
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for (;workers.size(); workers.pop_back())
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workers.back().join();
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while (server.get_connections_count()) {
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server.get_config_shared()->del_in_connections(
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server.get_config_shared()->get_in_connections_count()
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);
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}
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});
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for (auto& w: workers) {
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@ -462,3 +474,241 @@ TEST(test_epee_connection, test_lifetime)
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server.timed_wait_server_stop(5 * 1000);
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server.deinit_server();
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}
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TEST(test_epee_connection, ssl_shutdown)
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{
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struct context_t: epee::net_utils::connection_context_base {
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static constexpr size_t get_max_bytes(int) noexcept { return -1; }
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static constexpr int handshake_command() noexcept { return 1001; }
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static constexpr bool handshake_complete() noexcept { return true; }
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};
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struct command_handler_t: epee::levin::levin_commands_handler<context_t> {
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virtual int invoke(int, const epee::span<const uint8_t>, epee::byte_stream&, context_t&) override { return {}; }
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virtual int notify(int, const epee::span<const uint8_t>, context_t&) override { return {}; }
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virtual void callback(context_t&) override {}
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virtual void on_connection_new(context_t&) override {}
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virtual void on_connection_close(context_t&) override { }
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virtual ~command_handler_t() override {}
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static void destroy(epee::levin::levin_commands_handler<context_t>* ptr) { delete ptr; }
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};
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using handler_t = epee::levin::async_protocol_handler<context_t>;
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using io_context_t = boost::asio::io_service;
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using endpoint_t = boost::asio::ip::tcp::endpoint;
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using server_t = epee::net_utils::boosted_tcp_server<handler_t>;
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using socket_t = boost::asio::ip::tcp::socket;
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using ssl_socket_t = boost::asio::ssl::stream<socket_t>;
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using ssl_context_t = boost::asio::ssl::context;
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using ec_t = boost::system::error_code;
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endpoint_t endpoint(boost::asio::ip::address::from_string("127.0.0.1"), 5263);
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server_t server(epee::net_utils::e_connection_type_P2P);
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server.init_server(endpoint.port(),
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endpoint.address().to_string(),
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0,
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"",
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false,
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true,
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epee::net_utils::ssl_support_t::e_ssl_support_enabled
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);
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server.get_config_shared()->set_handler(new command_handler_t, &command_handler_t::destroy);
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server.run_server(2, false);
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ssl_context_t ssl_context{boost::asio::ssl::context::sslv23};
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io_context_t io_context;
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ssl_socket_t socket(io_context, ssl_context);
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ec_t ec;
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socket.next_layer().connect(endpoint, ec);
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EXPECT_EQ(ec.value(), 0);
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socket.handshake(boost::asio::ssl::stream_base::client, ec);
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EXPECT_EQ(ec.value(), 0);
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std::this_thread::sleep_for(std::chrono::milliseconds(100));
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while (server.get_config_shared()->get_connections_count() < 1);
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server.get_config_shared()->del_in_connections(1);
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while (server.get_config_shared()->get_connections_count() > 0);
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server.send_stop_signal();
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EXPECT_TRUE(server.timed_wait_server_stop(5 * 1000));
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server.deinit_server();
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socket.next_layer().shutdown(boost::asio::ip::tcp::socket::shutdown_both, ec);
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socket.next_layer().close(ec);
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socket.shutdown(ec);
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}
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TEST(test_epee_connection, ssl_handshake)
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{
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using io_context_t = boost::asio::io_service;
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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 socket_t = boost::asio::ip::tcp::socket;
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using ssl_socket_t = boost::asio::ssl::stream<socket_t>;
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using ssl_socket_ptr = std::unique_ptr<ssl_socket_t>;
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using ssl_options_t = epee::net_utils::ssl_options_t;
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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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auto constexpr N = 2;
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while (workers.size() < N) {
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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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ssl_options_t ssl_options{{}};
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auto ssl_context = ssl_options.create_context();
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for (size_t i = 0; i < N * N * N; ++i) {
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ssl_socket_ptr ssl_socket(new ssl_socket_t(io_context, ssl_context));
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ssl_socket->next_layer().open(boost::asio::ip::tcp::v4());
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for (size_t i = 0; i < N; ++i) {
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io_context.post([]{
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std::this_thread::sleep_for(std::chrono::milliseconds(50));
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});
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}
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EXPECT_EQ(
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ssl_options.handshake(
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*ssl_socket,
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ssl_socket_t::server,
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{},
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{},
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std::chrono::milliseconds(0)
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),
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false
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);
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ssl_socket->next_layer().close();
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ssl_socket.reset();
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}
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work.reset();
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for (;workers.size(); workers.pop_back())
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workers.back().join();
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}
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TEST(boosted_tcp_server, strand_deadlock)
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{
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using context_t = epee::net_utils::connection_context_base;
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using lock_t = std::mutex;
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using unique_lock_t = std::unique_lock<lock_t>;
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struct config_t {
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using condition_t = std::condition_variable_any;
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using lock_guard_t = std::lock_guard<lock_t>;
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void notify_success()
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{
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lock_guard_t guard(lock);
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success = true;
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condition.notify_all();
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}
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lock_t lock;
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condition_t condition;
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bool success;
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};
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struct handler_t {
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using config_type = config_t;
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using connection_context = context_t;
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using byte_slice_t = epee::byte_slice;
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using socket_t = epee::net_utils::i_service_endpoint;
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handler_t(socket_t *socket, config_t &config, context_t &context):
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socket(socket),
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config(config),
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context(context)
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{}
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void after_init_connection()
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{
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unique_lock_t guard(lock);
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if (not context.m_is_income) {
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guard.unlock();
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socket->do_send(byte_slice_t{"."});
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}
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}
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void handle_qued_callback()
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{
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}
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bool handle_recv(const char *data, size_t bytes_transferred)
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{
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unique_lock_t guard(lock);
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if (not context.m_is_income) {
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if (context.m_recv_cnt == 1024) {
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guard.unlock();
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socket->do_send(byte_slice_t{"."});
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}
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}
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else {
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if (context.m_recv_cnt == 1) {
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for(size_t i = 0; i < 1024; ++i) {
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guard.unlock();
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socket->do_send(byte_slice_t{"."});
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guard.lock();
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}
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}
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else if(context.m_recv_cnt == 2) {
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guard.unlock();
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socket->close();
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}
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}
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return true;
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}
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void release_protocol()
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{
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unique_lock_t guard(lock);
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if(not context.m_is_income
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and context.m_recv_cnt == 1024
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and context.m_send_cnt == 2
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) {
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guard.unlock();
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config.notify_success();
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}
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}
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lock_t lock;
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socket_t *socket;
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config_t &config;
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context_t &context;
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};
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using server_t = epee::net_utils::boosted_tcp_server<handler_t>;
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using endpoint_t = boost::asio::ip::tcp::endpoint;
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endpoint_t endpoint(boost::asio::ip::address::from_string("127.0.0.1"), 5262);
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server_t server(epee::net_utils::e_connection_type_P2P);
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server.init_server(
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endpoint.port(),
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endpoint.address().to_string(),
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{},
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{},
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{},
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true,
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epee::net_utils::ssl_support_t::e_ssl_support_disabled
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);
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server.run_server(2, {});
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server.async_call(
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[&]{
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context_t context;
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ASSERT_TRUE(
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server.connect(
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endpoint.address().to_string(),
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std::to_string(endpoint.port()),
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5,
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context,
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"0.0.0.0",
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epee::net_utils::ssl_support_t::e_ssl_support_disabled
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)
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);
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}
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);
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{
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unique_lock_t guard(server.get_config_object().lock);
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EXPECT_TRUE(
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server.get_config_object().condition.wait_for(
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guard,
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std::chrono::seconds(5),
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[&] { return server.get_config_object().success; }
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)
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);
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}
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server.send_stop_signal();
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server.timed_wait_server_stop(5 * 1000);
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server.deinit_server();
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}
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