%% Copyright (c) 2011-2018, Loïc Hoguin %% %% Permission to use, copy, modify, and/or distribute this software for any %% purpose with or without fee is hereby granted, provided that the above %% copyright notice and this permission notice appear in all copies. %% %% THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES %% WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF %% MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR %% ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES %% WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN %% ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF %% OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. -module(acceptor_SUITE). -compile(export_all). -compile(nowarn_export_all). -dialyzer({nowarn_function, misc_wait_for_connections/1}). -import(ct_helper, [doc/1]). -import(ct_helper, [name/0]). %% ct. all() -> [{group, tcp}, {group, ssl}, {group, misc}, {group, supervisor}]. groups() -> [{tcp, [ tcp_active_echo, tcp_echo, tcp_graceful, tcp_inherit_options, tcp_max_connections, tcp_max_connections_and_beyond, tcp_max_connections_infinity, tcp_remove_connections, tcp_set_max_connections, tcp_set_max_connections_clean, tcp_getopts_capability, tcp_getstat_capability, tcp_upgrade, tcp_10_acceptors_10_listen_sockets, tcp_many_listen_sockets_no_reuseport, tcp_error_eaddrinuse, tcp_error_eacces ]}, {ssl, [ ssl_accept_error, ssl_active_echo, ssl_echo, ssl_graceful, ssl_sni_echo, ssl_sni_fail, ssl_upgrade_from_tcp, ssl_getopts_capability, ssl_getstat_capability, ssl_10_acceptors_10_listen_sockets, ssl_many_listen_sockets_no_reuseport, ssl_error_eaddrinuse, ssl_error_no_cert, ssl_error_eacces ]}, {misc, [ misc_bad_transport, misc_bad_transport_options, misc_repeated_remove, misc_info, misc_info_embedded, misc_opts_logger, misc_wait_for_connections ]}, {supervisor, [ connection_type_supervisor, connection_type_supervisor_separate_from_connection, supervisor_10_acceptors_1_conns_sup, supervisor_9_acceptors_4_conns_sups, supervisor_10_acceptors_10_conns_sups, supervisor_1_acceptor_10_conns_sups, supervisor_changed_options_restart, supervisor_clean_child_restart, supervisor_clean_restart, supervisor_conns_alive, supervisor_protocol_start_link_crash, supervisor_server_recover_state, supervisor_unexpected_message ]}]. %% misc. misc_bad_transport(_) -> doc("Reject invalid transport modules."), {error, badarg} = ranch:start_listener(misc_bad_transport, bad_transport, #{}, echo_protocol, []), ok. misc_bad_transport_options(_) -> doc("Ignore invalid transport options."), {ok, _} = ranch:start_listener(misc_bad_transport_options, ranch_tcp, [binary, {packet, 4}, <<"garbage">>, raw, backlog], echo_protocol, []), ok. misc_info(_) -> doc("Information about listeners."), %% Open a listener with a few connections. {ok, Pid1} = ranch:start_listener({misc_info, tcp}, ranch_tcp, #{num_acceptors => 1}, remove_conn_and_wait_protocol, [{remove, true, 2500}]), Port1 = ranch:get_port({misc_info, tcp}), %% Open a few more listeners with different arguments. {ok, Pid2} = ranch:start_listener({misc_info, act}, ranch_tcp, #{num_acceptors => 2}, active_echo_protocol, {}), Port2 = ranch:get_port({misc_info, act}), ranch:set_max_connections({misc_info, act}, infinity), Opts = ct_helper:get_certs_from_ets(), {ok, Pid3} = ranch:start_listener({misc_info, ssl}, ranch_ssl, #{num_acceptors => 3, socket_opts => Opts}, echo_protocol, [{}]), Port3 = ranch:get_port({misc_info, ssl}), %% Open 5 connections, 3 removed from the count. {ok, _} = gen_tcp:connect("localhost", Port1, [binary, {active, false}, {packet, raw}]), {ok, _} = gen_tcp:connect("localhost", Port1, [binary, {active, false}, {packet, raw}]), {ok, _} = gen_tcp:connect("localhost", Port1, [binary, {active, false}, {packet, raw}]), receive after 250 -> ok end, ranch:set_protocol_options({misc_info, tcp}, [{remove, false, 2500}]), receive after 250 -> ok end, {ok, _} = gen_tcp:connect("localhost", Port1, [binary, {active, false}, {packet, raw}]), {ok, _} = gen_tcp:connect("localhost", Port1, [binary, {active, false}, {packet, raw}]), receive after 250 -> ok end, %% Confirm the info returned by Ranch is correct. [ {{misc_info, act}, [ {pid, Pid2}, {status, _}, {ip, _}, {port, Port2}, {max_connections, infinity}, %% Option was modified. {active_connections, 0}, {all_connections, 0}, {transport, ranch_tcp}, {transport_options, #{num_acceptors := 2}}, {protocol, active_echo_protocol}, {protocol_options, {}} ]}, {{misc_info, ssl}, [ {pid, Pid3}, {status, _}, {ip, _}, {port, Port3}, {max_connections, 1024}, {active_connections, 0}, {all_connections, 0}, {transport, ranch_ssl}, {transport_options, #{num_acceptors := 3, socket_opts := Opts}}, {protocol, echo_protocol}, {protocol_options, [{}]} ]}, {{misc_info, tcp}, [ {pid, Pid1}, {status, _}, {ip, _}, {port, Port1}, {max_connections, 1024}, {active_connections, 2}, {all_connections, 5}, {transport, ranch_tcp}, {transport_options, #{num_acceptors := 1}}, {protocol, remove_conn_and_wait_protocol}, {protocol_options, [{remove, false, 2500}]} %% Option was modified. ]} ] = do_get_listener_info(misc_info), %% Get acceptors. [_] = ranch:procs({misc_info, tcp}, acceptors), [_, _] = ranch:procs({misc_info, act}, acceptors), [_, _, _] = ranch:procs({misc_info, ssl}, acceptors), %% Get connections. [_, _, _, _, _] = ranch:procs({misc_info, tcp}, connections), [] = ranch:procs({misc_info, act}, connections), [] = ranch:procs({misc_info, ssl}, connections), ok. misc_info_embedded(_) -> doc("Information about listeners in embedded mode."), {ok, SupPid} = embedded_sup:start_link(), %% Open a listener with a few connections. {ok, Pid1} = embedded_sup:start_listener(SupPid, {misc_info_embedded, tcp}, ranch_tcp, #{num_acceptors => 1}, remove_conn_and_wait_protocol, [{remove, true, 2500}]), Port1 = ranch:get_port({misc_info_embedded, tcp}), %% Open a few more listeners with different arguments. {ok, Pid2} = embedded_sup:start_listener(SupPid, {misc_info_embedded, act}, ranch_tcp, #{num_acceptors => 2}, active_echo_protocol, {}), Port2 = ranch:get_port({misc_info_embedded, act}), ranch:set_max_connections({misc_info_embedded, act}, infinity), Opts = ct_helper:get_certs_from_ets(), {ok, Pid3} = embedded_sup:start_listener(SupPid, {misc_info_embedded, ssl}, ranch_ssl, #{num_acceptors => 3, socket_opts => Opts}, echo_protocol, [{}]), Port3 = ranch:get_port({misc_info_embedded, ssl}), %% Open 5 connections, 3 removed from the count. {ok, _} = gen_tcp:connect("localhost", Port1, [binary, {active, false}, {packet, raw}]), {ok, _} = gen_tcp:connect("localhost", Port1, [binary, {active, false}, {packet, raw}]), {ok, _} = gen_tcp:connect("localhost", Port1, [binary, {active, false}, {packet, raw}]), receive after 250 -> ok end, ranch:set_protocol_options({misc_info_embedded, tcp}, [{remove, false, 2500}]), receive after 250 -> ok end, {ok, _} = gen_tcp:connect("localhost", Port1, [binary, {active, false}, {packet, raw}]), {ok, _} = gen_tcp:connect("localhost", Port1, [binary, {active, false}, {packet, raw}]), receive after 250 -> ok end, %% Confirm the info returned by Ranch is correct. [ {{misc_info_embedded, act}, [ {pid, Pid2}, {status, _}, {ip, _}, {port, Port2}, {max_connections, infinity}, %% Option was modified. {active_connections, 0}, {all_connections, 0}, {transport, ranch_tcp}, {transport_options, #{num_acceptors := 2}}, {protocol, active_echo_protocol}, {protocol_options, {}} ]}, {{misc_info_embedded, ssl}, [ {pid, Pid3}, {status, _}, {ip, _}, {port, Port3}, {max_connections, 1024}, {active_connections, 0}, {all_connections, 0}, {transport, ranch_ssl}, {transport_options, #{num_acceptors := 3, socket_opts := Opts}}, {protocol, echo_protocol}, {protocol_options, [{}]} ]}, {{misc_info_embedded, tcp}, [ {pid, Pid1}, {status, _}, {ip, _}, {port, Port1}, {max_connections, 1024}, {active_connections, 2}, {all_connections, 5}, {transport, ranch_tcp}, {transport_options, #{num_acceptors := 1}}, {protocol, remove_conn_and_wait_protocol}, {protocol_options, [{remove, false, 2500}]} %% Option was modified. ]} ] = do_get_listener_info(misc_info_embedded), %% Get acceptors. [_] = ranch:procs({misc_info_embedded, tcp}, acceptors), [_, _] = ranch:procs({misc_info_embedded, act}, acceptors), [_, _, _] = ranch:procs({misc_info_embedded, ssl}, acceptors), %% Get connections. [_, _, _, _, _] = ranch:procs({misc_info_embedded, tcp}, connections), [] = ranch:procs({misc_info_embedded, act}, connections), [] = ranch:procs({misc_info_embedded, ssl}, connections), %% Stop embedded tcp listener and ensure it is gone. ok = embedded_sup:stop_listener(SupPid, {misc_info_embedded, tcp}), timer:sleep(500), [{{misc_info_embedded, act}, _}, {{misc_info_embedded, ssl}, _}] = do_get_listener_info(misc_info_embedded), %% Stop embedded act listener and ensure it is gone. ok = embedded_sup:stop_listener(SupPid, {misc_info_embedded, act}), timer:sleep(500), [{{misc_info_embedded, ssl}, _}] = do_get_listener_info(misc_info_embedded), %% Stop embedded ssl listener and ensure it is gone. ok = embedded_sup:stop_listener(SupPid, {misc_info_embedded, ssl}), timer:sleep(500), [] = do_get_listener_info(misc_info_embedded), %% Stop embedded supervisor. embedded_sup:stop(SupPid), ok. do_get_listener_info(ListenerGroup) -> lists:sort([L || L={{G, _}, _} <- ranch:info(), G=:=ListenerGroup]). misc_opts_logger(_) -> doc("Confirm that messages are sent via the configured logger module."), register(misc_opts_logger, self()), {ok, _} = ranch:start_listener(name(), ranch_tcp, #{logger => ?MODULE, socket_opts => [<<"garbage">>]}, echo_protocol, []), receive {warning, "Transport option " ++ _, [<<"garbage">>]} -> ok after 1000 -> error(timeout) end. warning(Format, Args) -> misc_opts_logger ! {warning, Format, Args}. misc_repeated_remove(_) -> doc("Ensure repeated removal of connection does not crash the connection supervisor."), Name = name(), {ok, _} = ranch:start_listener(Name, ranch_tcp, #{}, remove_conn_and_wait_protocol, [{remove, 5, 0}]), Port = ranch:get_port(Name), ConnsSups = lists:sort(ranch_server:get_connections_sups(Name)), {ok, _} = gen_tcp:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), timer:sleep(1000), ConnsSups = lists:sort(ranch_server:get_connections_sups(Name)), true = lists:all(fun ({_, ConnsSup}) -> erlang:is_process_alive(ConnsSup) end, ConnsSups), ok = ranch:stop_listener(Name). misc_wait_for_connections(_) -> doc("Ensure wait for connections works."), Name = name(), Self = self(), %% Ensure invalid arguments are rejected. {'EXIT', {badarg, _}} = begin catch ranch:wait_for_connections(Name, 'foo', 0) end, {'EXIT', {badarg, _}} = begin catch ranch:wait_for_connections(Name, '==', -1) end, {'EXIT', {badarg, _}} = begin catch ranch:wait_for_connections(Name, '==', 0, -1) end, {'EXIT', {badarg, _}} = begin catch ranch:wait_for_connections(Name, '<', 0) end, %% Create waiters for increasing number of connections. Pid1GT = do_create_waiter(Self, Name, '>', 0), Pid1GE = do_create_waiter(Self, Name, '>=', 1), Pid1EQ = do_create_waiter(Self, Name, '==', 1), Pid2GT = do_create_waiter(Self, Name, '>', 1), Pid2GE = do_create_waiter(Self, Name, '>=', 2), Pid2EQ = do_create_waiter(Self, Name, '==', 2), {ok, _} = ranch:start_listener(Name, ranch_tcp, #{num_acceptors => 1}, echo_protocol, []), Port = ranch:get_port(Name), %% Create some connections, ensure that waiters respond. {ok, Sock1} = gen_tcp:connect("localhost", Port, []), ok = do_expect_waiter(Pid1GT), ok = do_expect_waiter(Pid1GE), ok = do_expect_waiter(Pid1EQ), ok = do_expect_waiter(undefined), {ok, Sock2} = gen_tcp:connect("localhost", Port, []), ok = do_expect_waiter(Pid2GT), ok = do_expect_waiter(Pid2GE), ok = do_expect_waiter(Pid2EQ), ok = do_expect_waiter(undefined), %% Create waiters for decreasing number of connections. Pid3LT = do_create_waiter(Self, Name, '<', 2), Pid3LE = do_create_waiter(Self, Name, '=<', 1), Pid3EQ = do_create_waiter(Self, Name, '==', 1), Pid4LT = do_create_waiter(Self, Name, '<', 1), Pid4LE = do_create_waiter(Self, Name, '=<', 0), Pid4EQ = do_create_waiter(Self, Name, '==', 0), %% Close connections, ensure that waiters respond. ok = gen_tcp:close(Sock1), ok = do_expect_waiter(Pid3LT), ok = do_expect_waiter(Pid3LE), ok = do_expect_waiter(Pid3EQ), ok = do_expect_waiter(undefined), ok = gen_tcp:close(Sock2), ok = do_expect_waiter(Pid4LT), ok = do_expect_waiter(Pid4LE), ok = do_expect_waiter(Pid4EQ), ok = do_expect_waiter(undefined), ok = ranch:stop_listener(Name), %% Make sure the listener stopped. {'EXIT', _} = begin catch ranch:get_port(Name) end, ok. do_create_waiter(ReplyTo, Ref, Op, NumConns) -> spawn(fun () -> ok = ranch:wait_for_connections(Ref, Op, NumConns, 100), ReplyTo ! {wait_connections, self()} end). do_expect_waiter(WaiterPid) -> receive {wait_connections, _} when WaiterPid=:=undefined -> error; {wait_connections, Pid} when Pid=:=WaiterPid -> ok after 1000 -> case WaiterPid of undefined -> ok; _ -> timeout end end. %% ssl. ssl_accept_error(_) -> doc("Acceptor must not crash if client disconnects in the middle of SSL handshake."), Name = name(), Opts = ct_helper:get_certs_from_ets(), {ok, ListenerSup} = ranch:start_listener(Name, ranch_ssl, #{num_acceptors => 1, socket_opts => Opts}, echo_protocol, []), Port = ranch:get_port(Name), ListenerSupChildren = supervisor:which_children(ListenerSup), {_, AcceptorsSup, _, _} = lists:keyfind(ranch_acceptors_sup, 1, ListenerSupChildren), [{{acceptor, _, _}, AcceptorPid, _, _}] = supervisor:which_children(AcceptorsSup), true = is_process_alive(AcceptorPid), {ok, Socket} = gen_tcp:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), ok = gen_tcp:close(Socket), receive after 500 -> ok end, true = is_process_alive(AcceptorPid), ok = ranch:stop_listener(Name). ssl_10_acceptors_10_listen_sockets(_) -> case do_os_supports_reuseport() of true -> ok = do_ssl_10_acceptors_10_listen_sockets(); false -> {skip, "No SO_REUSEPORT support."} end. do_ssl_10_acceptors_10_listen_sockets() -> doc("Ensure that we can use 10 listen sockets across 10 acceptors with SSL."), Name = name(), Opts = ct_helper:get_certs_from_ets(), {ok, ListenerSupPid} = ranch:start_listener(Name, ranch_ssl, #{ num_acceptors => 10, num_listen_sockets => 10, socket_opts => [{raw, 1, 15, <<1:32/native>>}|Opts]}, echo_protocol, []), 10 = length(do_get_listener_sockets(ListenerSupPid)), ok = ranch:stop_listener(Name), {'EXIT', _} = begin catch ranch:get_port(Name) end, ok. ssl_many_listen_sockets_no_reuseport(_) -> case do_os_supports_reuseport() of true -> ok = do_ssl_many_listen_sockets_no_reuseport(); false -> {skip, "No SO_REUSEPORT support."} end. do_ssl_many_listen_sockets_no_reuseport() -> doc("Confirm that ranch:start_listener/5 fails when SO_REUSEPORT is not available with SSL."), Name = name(), Opts = ct_helper:get_certs_from_ets(), {error, eaddrinuse} = ranch:start_listener(Name, ranch_ssl, #{ num_acceptors => 10, num_listen_sockets => 10, socket_opts => [{raw, 1, 15, <<0:32/native>>}|Opts]}, echo_protocol, []), {'EXIT', _} = begin catch ranch:get_port(Name) end, ok. ssl_active_echo(_) -> doc("Ensure that active mode works with SSL transport."), Name = name(), Opts = ct_helper:get_certs_from_ets(), {ok, _} = ranch:start_listener(Name, ranch_ssl, Opts, active_echo_protocol, []), Port = ranch:get_port(Name), {ok, Socket} = ssl:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), ok = ssl:send(Socket, <<"SSL Ranch is working!">>), {ok, <<"SSL Ranch is working!">>} = ssl:recv(Socket, 21, 1000), ok = ranch:stop_listener(Name), {error, closed} = ssl:recv(Socket, 0, 1000), %% Make sure the listener stopped. {'EXIT', _} = begin catch ranch:get_port(Name) end, ok. ssl_echo(_) -> doc("Ensure that passive mode works with SSL transport."), Name = name(), Opts = ct_helper:get_certs_from_ets(), {ok, _} = ranch:start_listener(Name, ranch_ssl, Opts, echo_protocol, []), Port = ranch:get_port(Name), {ok, Socket} = ssl:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), ok = ssl:send(Socket, <<"SSL Ranch is working!">>), {ok, <<"SSL Ranch is working!">>} = ssl:recv(Socket, 21, 1000), ok = ranch:stop_listener(Name), {error, closed} = ssl:recv(Socket, 0, 1000), %% Make sure the listener stopped. {'EXIT', _} = begin catch ranch:get_port(Name) end, ok. ssl_sni_echo(_) -> case application:get_key(ssl, vsn) of {ok, Vsn} when Vsn >= "7.0" -> do_ssl_sni_echo(); _ -> {skip, "No SNI support."} end. do_ssl_sni_echo() -> doc("Ensure that SNI works with SSL transport."), Name = name(), Opts = ct_helper:get_certs_from_ets(), {ok, _} = ranch:start_listener(Name, ranch_ssl, [{sni_hosts, [{"localhost", Opts}]}], echo_protocol, []), Port = ranch:get_port(Name), {ok, Socket} = ssl:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), ok = ssl:send(Socket, <<"SSL Ranch is working!">>), {ok, <<"SSL Ranch is working!">>} = ssl:recv(Socket, 21, 1000), ok = ranch:stop_listener(Name), {error, closed} = ssl:recv(Socket, 0, 1000), %% Make sure the listener stopped. {'EXIT', _} = begin catch ranch:get_port(Name) end, ok. ssl_sni_fail(_) -> case application:get_key(ssl, vsn) of {ok, Vsn} when Vsn >= "7.0" -> do_ssl_sni_fail(); _ -> {skip, "No SNI support."} end. do_ssl_sni_fail() -> doc("Ensure that connection fails when host is not in SNI list."), Name = name(), Opts = ct_helper:get_certs_from_ets(), {ok, _} = ranch:start_listener(Name, ranch_ssl, [{sni_hosts, [{"pouet", Opts}]}], echo_protocol, []), Port = ranch:get_port(Name), {error, _} = ssl:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), ok = ranch:stop_listener(Name), %% Make sure the listener stopped. {'EXIT', _} = begin catch ranch:get_port(Name) end, ok. ssl_upgrade_from_tcp(_) -> doc("Ensure a TCP socket can be upgraded to SSL"), Name = name(), {ok, _} = ranch:start_listener(Name, ranch_tcp, #{}, ssl_upgrade_protocol, []), Port = ranch:get_port(Name), {ok, Socket} = gen_tcp:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), ok = gen_tcp:send(Socket, <<"ECHO Before upgrading to SSL">>), {ok, <<"Before upgrading to SSL">>} = gen_tcp:recv(Socket, 23, 1000), ok = gen_tcp:send(Socket, <<"UPGRADE">>), {ok, <<"READY">>} = gen_tcp:recv(Socket, 5, 1000), {ok, SslSocket} = ssl:connect(Socket, [{verify, verify_none}], 5000), ok = ssl:send(SslSocket, <<"ECHO After upgrading to SSL">>), {ok, <<"After upgrading to SSL">>} = ssl:recv(SslSocket, 22, 1000), ok = ranch:stop_listener(Name), {error, closed} = ssl:recv(SslSocket, 0, 1000), {'EXIT', _} = begin catch ranch:get_port(Name) end, ok. ssl_graceful(_) -> doc("Ensure suspending and resuming of listeners does not kill active connections."), Name = name(), Opts = ct_helper:get_certs_from_ets(), {ok, _} = ranch:start_listener(Name, ranch_ssl, Opts, echo_protocol, []), Port = ranch:get_port(Name), %% Make sure connections with a fresh listener work. running = ranch:get_status(Name), {ok, Socket1} = ssl:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), ok = ssl:send(Socket1, <<"SSL with fresh listener">>), {ok, <<"SSL with fresh listener">>} = ssl:recv(Socket1, 23, 1000), %% Make sure transport options cannot be changed on a running listener. {error, running} = ranch:set_transport_options(Name, #{socket_opts => [{port, Port}|Opts]}), %% Suspend listener, make sure established connections keep running. ok = ranch:suspend_listener(Name), suspended = ranch:get_status(Name), ok = ssl:send(Socket1, <<"SSL with suspended listener">>), {ok, <<"SSL with suspended listener">>} = ssl:recv(Socket1, 27, 1000), %% Make sure new connections are refused on the suspended listener. {error, econnrefused} = ssl:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), %% Make sure transport options can be changed when listener is suspended. ok = ranch:set_transport_options(Name, #{socket_opts => [{port, Port}|Opts]}), %% Resume listener, make sure connections can be established again. ok = ranch:resume_listener(Name), running = ranch:get_status(Name), {ok, Socket2} = ssl:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), ok = ssl:send(Socket2, <<"SSL with resumed listener">>), {ok, <<"SSL with resumed listener">>} = ssl:recv(Socket2, 25, 1000), %% Make sure transport options cannot be changed on resumed listener. {error, running} = ranch:set_transport_options(Name, #{socket_opts => [{port, Port}|Opts]}), ok = ranch:stop_listener(Name), {error, closed} = ssl:recv(Socket1, 0, 1000), {error, closed} = ssl:recv(Socket2, 0, 1000), {'EXIT', _} = begin catch ranch:get_port(Name) end, ok. ssl_getopts_capability(_) -> doc("Ensure getopts/2 capability."), Name=name(), Opts=ct_helper:get_certs_from_ets(), {ok, _} = ranch:start_listener(Name, ranch_ssl, Opts, transport_capabilities_protocol, []), Port=ranch:get_port(Name), {ok, Socket}=ssl:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), ok=ssl:send(Socket, <<"getopts/2">>), {ok, <<"OK">>}=ssl:recv(Socket, 0, 1000), ok=ranch:stop_listener(Name), {error, closed}=ssl:recv(Socket, 0, 1000), {'EXIT', _}=begin catch ranch:get_port(Name) end, ok. ssl_getstat_capability(_) -> case application:get_key(ssl, vsn) of {ok, Vsn} when Vsn>="8.0" -> do_ssl_getstat_capability(); _ -> {skip, "No getstat/1,2 support."} end. do_ssl_getstat_capability() -> doc("Ensure getstat/1,2 capability."), Name=name(), Opts=ct_helper:get_certs_from_ets(), {ok, _} = ranch:start_listener(Name, ranch_ssl, Opts, transport_capabilities_protocol, []), Port=ranch:get_port(Name), {ok, Socket}=ssl:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), ok=ssl:send(Socket, <<"getstat/1">>), {ok, <<"OK">>}=ssl:recv(Socket, 0, 1000), ok=ssl:send(Socket, <<"getstat/2">>), {ok, <<"OK">>}=ssl:recv(Socket, 0, 1000), ok=ranch:stop_listener(Name), {error, closed}=ssl:recv(Socket, 0, 1000), {'EXIT', _}=begin catch ranch:get_port(Name) end, ok. ssl_error_eaddrinuse(_) -> doc("Ensure that failure due to an eaddrinuse returns a compact readable error."), Name = name(), Opts = ct_helper:get_certs_from_ets(), {ok, _} = ranch:start_listener(Name, ranch_ssl, Opts, active_echo_protocol, []), Port = ranch:get_port(Name), {error, eaddrinuse} = ranch:start_listener({Name, fails}, ranch_ssl, [{port, Port}|Opts], active_echo_protocol, []), ok = ranch:stop_listener(Name), %% Make sure the listener stopped. {'EXIT', _} = begin catch ranch:get_port(Name) end, ok. ssl_error_no_cert(_) -> doc("Ensure that failure due to missing certificate returns a compact readable error."), {error, no_cert} = ranch:start_listener(name(), ranch_ssl, #{}, active_echo_protocol, []), ok. ssl_error_eacces(_) -> case os:type() of {win32, nt} -> doc("There are no privileged ports on Windows."); _ -> doc("Ensure that failure due to an eacces returns a compact readable error."), Name = name(), Opts = ct_helper:get_certs_from_ets(), {error, eacces} = ranch:start_listener(Name, ranch_ssl, [{port, 283}|Opts], active_echo_protocol, []), ok end. %% tcp. tcp_10_acceptors_10_listen_sockets(_) -> case do_os_supports_reuseport() of true -> ok = do_tcp_10_acceptors_10_listen_sockets(); false -> {skip, "No SO_REUSEPORT support."} end. do_tcp_10_acceptors_10_listen_sockets() -> doc("Ensure that we can use 10 listen sockets across 10 acceptors with TCP."), Name = name(), {ok, ListenerSupPid} = ranch:start_listener(Name, ranch_tcp, #{ num_acceptors => 10, num_listen_sockets => 10, socket_opts => [{raw, 1, 15, <<1:32/native>>}]}, echo_protocol, []), 10 = length(do_get_listener_sockets(ListenerSupPid)), ok = ranch:stop_listener(Name), {'EXIT', _} = begin catch ranch:get_port(Name) end, ok. tcp_many_listen_sockets_no_reuseport(_) -> case do_os_supports_reuseport() of true -> ok = do_tcp_many_listen_sockets_no_reuseport(); false -> {skip, "No SO_REUSEPORT support."} end. do_tcp_many_listen_sockets_no_reuseport() -> doc("Confirm that ranch:start_listener/5 fails when SO_REUSEPORT is not available with TCP."), Name = name(), {error, eaddrinuse} = ranch:start_listener(Name, ranch_tcp, #{ num_acceptors => 10, num_listen_sockets => 10, socket_opts => [{raw, 1, 15, <<0:32/native>>}]}, echo_protocol, []), {'EXIT', _} = begin catch ranch:get_port(Name) end, ok. tcp_active_echo(_) -> doc("Ensure that active mode works with TCP transport."), Name = name(), {ok, _} = ranch:start_listener(Name, ranch_tcp, #{}, active_echo_protocol, []), Port = ranch:get_port(Name), {ok, Socket} = gen_tcp:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), ok = gen_tcp:send(Socket, <<"TCP Ranch is working!">>), {ok, <<"TCP Ranch is working!">>} = gen_tcp:recv(Socket, 21, 1000), ok = ranch:stop_listener(Name), {error, closed} = gen_tcp:recv(Socket, 0, 1000), %% Make sure the listener stopped. {'EXIT', _} = begin catch ranch:get_port(Name) end, ok. tcp_echo(_) -> doc("Ensure that passive mode works with TCP transport."), Name = name(), {ok, _} = ranch:start_listener(Name, ranch_tcp, #{}, echo_protocol, []), Port = ranch:get_port(Name), {ok, Socket} = gen_tcp:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), ok = gen_tcp:send(Socket, <<"TCP Ranch is working!">>), {ok, <<"TCP Ranch is working!">>} = gen_tcp:recv(Socket, 21, 1000), ok = ranch:stop_listener(Name), {error, closed} = gen_tcp:recv(Socket, 0, 1000), %% Make sure the listener stopped. {'EXIT', _} = begin catch ranch:get_port(Name) end, ok. tcp_graceful(_) -> doc("Ensure suspending and resuming of listeners does not kill active connections."), Name = name(), {ok, _} = ranch:start_listener(Name, ranch_tcp, #{}, echo_protocol, []), Port = ranch:get_port(Name), %% Make sure connections with a fresh listener work. running = ranch:get_status(Name), {ok, Socket1} = gen_tcp:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), ok = gen_tcp:send(Socket1, <<"TCP with fresh listener">>), {ok, <<"TCP with fresh listener">>} = gen_tcp:recv(Socket1, 23, 1000), %% Make sure transport options cannot be changed on a running listener. {error, running} = ranch:set_transport_options(Name, [{port, Port}]), %% Suspend listener, make sure established connections keep running. ok = ranch:suspend_listener(Name), suspended = ranch:get_status(Name), ok = gen_tcp:send(Socket1, <<"TCP with suspended listener">>), {ok, <<"TCP with suspended listener">>} = gen_tcp:recv(Socket1, 27, 1000), %% Make sure new connections are refused on the suspended listener. {error, econnrefused} = gen_tcp:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), %% Make sure transport options can be changed when listener is suspended. ok = ranch:set_transport_options(Name, [{port, Port}]), %% Resume listener, make sure connections can be established again. ok = ranch:resume_listener(Name), running = ranch:get_status(Name), {ok, Socket2} = gen_tcp:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), ok = gen_tcp:send(Socket2, <<"TCP with resumed listener">>), {ok, <<"TCP with resumed listener">>} = gen_tcp:recv(Socket2, 25, 1000), %% Make sure transport options cannot be changed on resumed listener. {error, running} = ranch:set_transport_options(Name, [{port, Port}]), ok = ranch:stop_listener(Name), {error, closed} = gen_tcp:recv(Socket1, 0, 1000), {error, closed} = gen_tcp:recv(Socket2, 0, 1000), {'EXIT', _} = begin catch ranch:get_port(Name) end, ok. tcp_inherit_options(_) -> doc("Ensure TCP options are inherited in the protocol."), Name = name(), Opts = [{nodelay, false}, {send_timeout_close, false}], {ok, _} = ranch:start_listener(Name, ranch_tcp, Opts, check_tcp_options, [{pid, self()} | Opts]), Port = ranch:get_port(Name), {ok, Socket} = gen_tcp:connect("localhost", Port, [binary, {active, true}, {packet, raw}]), receive checked -> ok after 1000 -> error(timeout) end, ok = gen_tcp:close(Socket), ok = ranch:stop_listener(Name). tcp_max_connections(_) -> doc("Ensure the max_connections option actually limits connections."), Name = name(), {ok, _} = ranch:start_listener(Name, ranch_tcp, #{max_connections => 10, num_acceptors => 1}, notify_and_wait_protocol, [{msg, connected}, {pid, self()}]), Port = ranch:get_port(Name), ok = connect_loop(Port, 11, 150), 10 = ranch_server:count_connections(Name), 10 = receive_loop(connected, 400), 1 = receive_loop(connected, 1000), ok = ranch:stop_listener(Name). tcp_max_connections_and_beyond(_) -> doc("Ensure the max_connections option works when connections are removed from the count."), Name = name(), {ok, _} = ranch:start_listener(Name, ranch_tcp, #{max_connections => 10, num_acceptors => 1}, remove_conn_and_wait_protocol, [{remove, true, 2500}]), Port = ranch:get_port(Name), ok = connect_loop(Port, 10, 0), receive after 250 -> ok end, 0 = ranch_server:count_connections(Name), 10 = length(do_conns_which_children(Name)), Counts = do_conns_count_children(Name), {_, 1} = lists:keyfind(specs, 1, Counts), {_, 0} = lists:keyfind(supervisors, 1, Counts), {_, 10} = lists:keyfind(active, 1, Counts), {_, 10} = lists:keyfind(workers, 1, Counts), ranch:set_protocol_options(Name, [{remove, false, 2500}]), receive after 250 -> ok end, ok = connect_loop(Port, 10, 0), receive after 250 -> ok end, 10 = ranch_server:count_connections(Name), 20 = length(do_conns_which_children(Name)), Counts2 = do_conns_count_children(Name), {_, 20} = lists:keyfind(active, 1, Counts2), {_, 20} = lists:keyfind(workers, 1, Counts2), ok = ranch:stop_listener(Name). tcp_max_connections_infinity(_) -> doc("Set the max_connections option from 10 to infinity and back to 10."), Name = name(), {ok, _} = ranch:start_listener(Name, ranch_tcp, #{max_connections => 10, num_acceptors => 1}, notify_and_wait_protocol, [{msg, connected}, {pid, self()}]), Port = ranch:get_port(Name), ok = connect_loop(Port, 20, 0), 10 = ranch_server:count_connections(Name), 10 = receive_loop(connected, 1000), 10 = ranch_server:count_connections(Name), 10 = ranch:get_max_connections(Name), ranch:set_max_connections(Name, infinity), receive after 250 -> ok end, 20 = ranch_server:count_connections(Name), infinity = ranch:get_max_connections(Name), ranch:set_max_connections(Name, 10), 20 = ranch_server:count_connections(Name), 10 = receive_loop(connected, 1000), ok = ranch:stop_listener(Name). tcp_remove_connections(_) -> doc("Ensure that removed connections are only removed once."), Name = name(), {ok, _} = ranch:start_listener(Name, ranch_tcp, #{}, remove_conn_and_wait_protocol, [{remove, true, 0}]), Port = ranch:get_port(Name), ok = connect_loop(Port, 10, 0), receive after 250 -> ok end, 0 = ranch_server:count_connections(Name), ok = ranch:stop_listener(Name). tcp_set_max_connections(_) -> doc("Ensure that changing the max_connections option to a larger value allows for more connections."), Name = name(), {ok, _} = ranch:start_listener(Name, ranch_tcp, #{max_connections => 10, num_acceptors => 1}, notify_and_wait_protocol, [{msg, connected}, {pid, self()}]), Port = ranch:get_port(Name), ok = connect_loop(Port, 20, 0), 10 = ranch_server:count_connections(Name), 10 = receive_loop(connected, 1000), 10 = ranch:get_max_connections(Name), ranch:set_max_connections(Name, 20), 10 = receive_loop(connected, 1000), 20 = ranch:get_max_connections(Name), ok = ranch:stop_listener(Name). tcp_set_max_connections_clean(Config) -> case code:is_module_native(?MODULE) of true -> doc("This test uses tracing and is not compatible with native code."); false -> do_tcp_set_max_connections_clean(Config) end. do_tcp_set_max_connections_clean(_) -> doc("Ensure that setting max_connections does not crash any process."), Name = name(), {ok, ListSupPid} = ranch:start_listener(Name, ranch_tcp, #{max_connections => 4}, notify_and_wait_protocol, [{msg, connected}, {pid, self()}]), Children = supervisor:which_children(ListSupPid), {_, AccSupPid, _, _} = lists:keyfind(ranch_acceptors_sup, 1, Children), 1 = erlang:trace(ListSupPid, true, [procs]), 1 = erlang:trace(AccSupPid, true, [procs]), Port = ranch:get_port(Name), N = 20, ok = connect_loop(Port, N*5, 0), %% Randomly set max_connections. [spawn(ranch, set_max_connections, [Name, Max]) || Max <- lists:flatten(lists:duplicate(N, [6, 4, 8, infinity]))], receive {trace, _, spawn, _, _} -> error(dirty_set_max_connections) after 2000 -> ok end, _ = erlang:trace(all, false, [all]), ok = clean_traces(), ok = ranch:stop_listener(Name). tcp_getopts_capability(_) -> doc("Ensure getopts/2 capability."), Name=name(), {ok, _}=ranch:start_listener(Name, ranch_tcp, #{}, transport_capabilities_protocol, []), Port=ranch:get_port(Name), {ok, Socket}=gen_tcp:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), ok=gen_tcp:send(Socket, <<"getopts/2">>), {ok, <<"OK">>}=gen_tcp:recv(Socket, 0, 1000), ok=ranch:stop_listener(Name), {error, closed}=gen_tcp:recv(Socket, 0, 1000), {'EXIT', _}=begin catch ranch:get_port(Name) end, ok. tcp_getstat_capability(_) -> doc("Ensure getstat/1,2 capability."), Name=name(), {ok, _}=ranch:start_listener(Name, ranch_tcp, #{}, transport_capabilities_protocol, []), Port=ranch:get_port(Name), {ok, Socket}=gen_tcp:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), ok=gen_tcp:send(Socket, <<"getstat/1">>), {ok, <<"OK">>}=gen_tcp:recv(Socket, 0, 1000), ok=gen_tcp:send(Socket, <<"getstat/2">>), {ok, <<"OK">>}=gen_tcp:recv(Socket, 0, 1000), ok=ranch:stop_listener(Name), {error, closed}=gen_tcp:recv(Socket, 0, 1000), {'EXIT', _}=begin catch ranch:get_port(Name) end, ok. tcp_upgrade(_) -> doc("Ensure that protocol options can be updated."), Name = name(), {ok, _} = ranch:start_listener(Name, ranch_tcp, #{}, notify_and_wait_protocol, [{msg, connected}, {pid, self()}]), Port = ranch:get_port(Name), ok = connect_loop(Port, 1, 0), receive connected -> ok after 1000 -> error(timeout) end, ranch:set_protocol_options(Name, [{msg, upgraded}, {pid, self()}]), ok = connect_loop(Port, 1, 0), receive upgraded -> ok after 1000 -> error(timeout) end, ok = ranch:stop_listener(Name). tcp_error_eaddrinuse(_) -> doc("Ensure that failure due to an eaddrinuse returns a compact readable error."), Name = name(), {ok, _} = ranch:start_listener(Name, ranch_tcp, #{}, active_echo_protocol, []), Port = ranch:get_port(Name), {error, eaddrinuse} = ranch:start_listener({Name, fails}, ranch_tcp, [{port, Port}], active_echo_protocol, []), ok = ranch:stop_listener(Name), %% Make sure the listener stopped. {'EXIT', _} = begin catch ranch:get_port(Name) end, ok. tcp_error_eacces(_) -> case os:type() of {win32, nt} -> doc("There are no privileged ports on Windows."); _ -> doc("Ensure that failure due to an eacces returns a compact readable error."), Name = name(), {error, eacces} = ranch:start_listener(Name, ranch_tcp, [{port, 283}], active_echo_protocol, []), ok end. %% Supervisor tests connection_type_supervisor(_) -> doc("The supervisor connection type must be reflected in the specifications."), Name = name(), {ok, _} = ranch:start_listener(Name, ranch_tcp, #{connection_type => supervisor}, echo_protocol, []), Port = ranch:get_port(Name), {ok, Socket} = gen_tcp:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), ok = gen_tcp:send(Socket, <<"TCP Ranch is working!">>), {ok, <<"TCP Ranch is working!">>} = gen_tcp:recv(Socket, 21, 1000), [{echo_protocol, _, supervisor, [echo_protocol]}] = do_conns_which_children(Name), ok = ranch:stop_listener(Name), {error, closed} = gen_tcp:recv(Socket, 0, 1000), %% Make sure the listener stopped. {'EXIT', _} = begin catch ranch:get_port(Name) end, ok. connection_type_supervisor_separate_from_connection(_) -> doc("The supervisor connection type allows separate supervised and connection processes."), Name = name(), {ok, _} = ranch:start_listener(Name, ranch_tcp, #{connection_type => supervisor}, supervisor_separate, []), Port = ranch:get_port(Name), {ok, Socket} = gen_tcp:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), ok = gen_tcp:send(Socket, <<"TCP Ranch is working!">>), {ok, <<"TCP Ranch is working!">>} = gen_tcp:recv(Socket, 21, 1000), [{supervisor_separate, _, supervisor, [supervisor_separate]}] = do_conns_which_children(Name), ok = ranch:stop_listener(Name), {error, closed} = gen_tcp:recv(Socket, 0, 1000), %% Make sure the listener stopped. {'EXIT', _} = begin catch ranch:get_port(Name) end, ok. supervisor_10_acceptors_1_conns_sup(_) -> doc("Ensure that using 10 acceptors and 1 connection supervisor works."), ok = do_supervisor_n_acceptors_m_conns_sups(10, 1). supervisor_9_acceptors_4_conns_sups(_) -> doc("Ensure that using 9 acceptors and 4 connection supervisors works."), ok = do_supervisor_n_acceptors_m_conns_sups(9, 4). supervisor_10_acceptors_10_conns_sups(_) -> doc("Ensure that using 10 acceptors and 10 connection supervisors works."), ok = do_supervisor_n_acceptors_m_conns_sups(10, 10). supervisor_1_acceptor_10_conns_sups(_) -> doc("Ensure that using 1 acceptor and 10 connection supervisors works."), ok = do_supervisor_n_acceptors_m_conns_sups(1, 10). do_supervisor_n_acceptors_m_conns_sups(NumAcceptors, NumConnsSups) -> Name = name(), {ok, Pid} = ranch:start_listener(Name, ranch_tcp, #{num_conns_sups => NumConnsSups, num_acceptors => NumAcceptors}, notify_and_wait_protocol, [{msg, connected}, {pid, self()}]), Port = ranch:get_port(Name), ConnsSups = [ConnsSup || {_, ConnsSup} <- ranch_server:get_connections_sups(Name)], NumConnsSups = length(ConnsSups), {ranch_acceptors_sup, AcceptorsSup, supervisor, _} = lists:keyfind(ranch_acceptors_sup, 1, supervisor:which_children(Pid)), AcceptorIds = [AcceptorId || {{acceptor, _, AcceptorId}, _, worker, _} <- supervisor:which_children(AcceptorsSup)], NumAcceptors = length(AcceptorIds), AcceptorConnsSups0 = [ranch_server:get_connections_sup(Name, AcceptorId) || AcceptorId <- AcceptorIds], AcceptorConnsSups1 = lists:usort(AcceptorConnsSups0), if NumAcceptors > NumConnsSups -> NumConnsSups = length(AcceptorConnsSups1), [] = ConnsSups -- AcceptorConnsSups1; NumAcceptors < NumConnsSups -> NumAcceptors = length(AcceptorConnsSups1), [] = AcceptorConnsSups1 -- ConnsSups; NumAcceptors =:= NumConnsSups -> NumConnsSups = length(AcceptorConnsSups1), NumAcceptors = length(AcceptorConnsSups1), [] = ConnsSups -- AcceptorConnsSups1, [] = AcceptorConnsSups1 -- ConnsSups end, ok = connect_loop(Port, 100, 0), 100 = receive_loop(connected, 100), 100 = ranch_server:count_connections(Name), ok = ranch:stop_listener(Name), {'EXIT', _} = begin catch ranch:get_port(Name) end, ok. supervisor_changed_options_restart(_) -> doc("Ensure that a listener is restarted with changed transport options."), Name = name(), %% Start a listener using send_timeout as option change marker. {ok, ListenerSupPid1} = ranch:start_listener(Name, ranch_tcp, [{send_timeout, 300000}], echo_protocol, []), %% Ensure send_timeout is really set to initial value. {ok, [{send_timeout, 300000}]} = inet:getopts(do_get_listener_socket(ListenerSupPid1), [send_timeout]), %% Change send_timeout option. ok = ranch:suspend_listener(Name), ok = ranch:set_transport_options(Name, [{send_timeout, 300001}]), ok = ranch:resume_listener(Name), %% Ensure send_timeout is really set to the changed value. {ok, [{send_timeout, 300001}]} = inet:getopts(do_get_listener_socket(ListenerSupPid1), [send_timeout]), %% Crash the listener_sup process, allow a short time for restart to succeed. exit(ListenerSupPid1, kill), timer:sleep(1000), %% Obtain pid of restarted listener_sup process. [ListenerSupPid2] = [Pid || {{ranch_listener_sup, Ref}, Pid, supervisor, _} <- supervisor:which_children(ranch_sup), Ref =:= Name], %% Ensure send_timeout is still set to the changed value. {ok, [{send_timeout, 300001}]} = inet:getopts(do_get_listener_socket(ListenerSupPid2), [send_timeout]), ok = ranch:stop_listener(Name), {'EXIT', _} = begin catch ranch:get_port(Name) end, ok. supervisor_clean_child_restart(Config) -> case code:is_module_native(?MODULE) of true -> doc("This test uses tracing and is not compatible with native code."); false -> do_supervisor_clean_child_restart(Config) end. do_supervisor_clean_child_restart(_) -> doc("Verify that only the relevant parts of the supervision tree restarted " "when the listening socket is closed."), Name = name(), %% Trace socket allocations. {module, ranch_tcp} = code:ensure_loaded(ranch_tcp), _ = erlang:trace(new, true, [call]), 1 = erlang:trace_pattern({ranch_tcp, listen, 1}, [{'_', [], [{return_trace}]}], [global]), {ok, Pid} = ranch:start_listener(Name, ranch_tcp, #{num_acceptors => 1}, echo_protocol, []), %% Trace supervisor spawns. 1 = erlang:trace(Pid, true, [procs, set_on_spawn]), ConnsSups = ranch_server:get_connections_sups(Name), %% Manually shut the listening socket down. LSocket = receive {trace, _, return_from, {ranch_tcp, listen, 1}, {ok, Socket}} -> Socket after 0 -> error(lsocket_unknown) end, ok = gen_tcp:close(LSocket), receive after 1000 -> ok end, %% Verify that supervisor and its first two children are alive. true = is_process_alive(Pid), true = lists:all(fun erlang:is_process_alive/1, [ConnsSup || {_, ConnsSup} <- ConnsSups]), %% Check that acceptors_sup is restarted properly. AccSupPid = receive {trace, Pid, spawn, Pid1, _} -> Pid1 end, receive {trace, AccSupPid, spawn, _, _} -> ok end, %% No more traces then. receive {trace, _, spawn, _, _} -> error(invalid_restart) after 1000 -> ok end, %% Verify that children still registered right. ConnsSups = ranch_server:get_connections_sups(Name), _ = erlang:trace_pattern({ranch_tcp, listen, 1}, false, []), _ = erlang:trace(all, false, [all]), ok = clean_traces(), ok = ranch:stop_listener(Name). supervisor_clean_restart(Config) -> case code:is_module_native(?MODULE) of true -> doc("This test uses tracing and is not compatible with native code."); false -> do_supervisor_clean_restart(Config) end. do_supervisor_clean_restart(_) -> doc("Verify that killing ranch_conns_sup does not crash everything " "and that it restarts properly."), Name = name(), NumAcc = 4, {ok, Pid} = ranch:start_listener(Name, ranch_tcp, #{num_acceptors => NumAcc}, echo_protocol, []), %% Trace supervisor spawns. 1 = erlang:trace(Pid, true, [procs, set_on_spawn]), {_, ConnsSupSup0, _, _} = lists:keyfind(ranch_conns_sup_sup, 1, supervisor:which_children(Pid)), exit(ConnsSupSup0, kill), receive after 1000 -> ok end, %% Verify that supervisor is alive true = is_process_alive(Pid), %% ...but children are dead. false = is_process_alive(ConnsSupSup0), %% Receive traces from newly started children ConnsSupSup = receive {trace, Pid, spawn, Pid2, _} -> Pid2 end, [receive {trace, ConnsSupSup, spawn, _Pid, _} -> ok end || _ <- lists:seq(1, NumAcc)], AccSupPid = receive {trace, Pid, spawn, Pid3, _} -> Pid3 end, %% ...and its acceptors. [receive {trace, AccSupPid, spawn, _Pid, _} -> ok end || _ <- lists:seq(1, NumAcc)], %% No more traces then. receive {trace, EPid, spawn, _, _} when EPid == Pid; EPid == AccSupPid -> error(invalid_restart) after 1000 -> ok end, %% Verify that new children registered themselves properly. _ = erlang:trace(all, false, [all]), ok = clean_traces(), ok = ranch:stop_listener(Name). supervisor_conns_alive(Config) -> case code:is_module_native(?MODULE) of true -> doc("This test uses tracing and is not compatible with native code."); false -> do_supervisor_conns_alive(Config) end. do_supervisor_conns_alive(_) -> doc("Ensure that active connections stay open when the listening socket gets closed."), Name = name(), {module, ranch_tcp} = code:ensure_loaded(ranch_tcp), _ = erlang:trace(new, true, [call]), 1 = erlang:trace_pattern({ranch_tcp, listen, 1}, [{'_', [], [{return_trace}]}], [global]), {ok, _} = ranch:start_listener(Name, ranch_tcp, #{}, remove_conn_and_wait_protocol, [{remove, false, 2500}]), %% Get the listener socket LSocket = receive {trace, _, return_from, {ranch_tcp, listen, 1}, {ok, S}} -> S after 500 -> error(lsocket_unknown) end, TcpPort = ranch:get_port(Name), {ok, Socket} = gen_tcp:connect("localhost", TcpPort, [binary, {active, true}, {packet, raw}]), receive after 500 -> ok end, %% Shut the socket down ok = gen_tcp:close(LSocket), %% Assert that client is still viable. receive {tcp_closed, _} -> error(closed) after 1500 -> ok end, ok = gen_tcp:send(Socket, <<"poke">>), receive {tcp_closed, _} -> ok end, _ = erlang:trace(all, false, [all]), ok = clean_traces(), ok = ranch:stop_listener(Name). supervisor_protocol_start_link_crash(_) -> doc("Ensure a protocol start crash does not kill all connections."), Name = name(), {ok, _} = ranch:start_listener(Name, ranch_tcp, #{}, crash_protocol, []), ConnsSups = ranch_server:get_connections_sups(Name), Port = ranch:get_port(Name), {ok, _} = gen_tcp:connect("localhost", Port, [binary, {active, true}, {packet, raw}]), receive after 500 -> ok end, ConnsSups = ranch_server:get_connections_sups(Name), ok = ranch:stop_listener(Name). supervisor_server_recover_state(Config) -> case code:is_module_native(?MODULE) of true -> doc("This test uses tracing and is not compatible with native code."); false -> do_supervisor_server_recover_state(Config) end. do_supervisor_server_recover_state(_) -> doc("Ensure that when ranch_server crashes and restarts, it recovers " "its state and continues monitoring the same processes."), Name = name(), _ = erlang:trace(new, true, [call]), 1 = erlang:trace_pattern({ranch_server, init, 1}, [{'_', [], [{return_trace}]}], [global]), {ok, _} = ranch:start_listener(Name, ranch_tcp, #{}, echo_protocol, []), ConnsSups = ranch_server:get_connections_sups(Name), ServerPid = erlang:whereis(ranch_server), {monitors, Monitors} = erlang:process_info(ServerPid, monitors), erlang:exit(ServerPid, kill), receive {trace, ServerPid2, return_from, {ranch_server, init, 1}, _Result} -> {monitors, Monitors2} = erlang:process_info(ServerPid2, monitors), %% Check that ranch_server is monitoring the same processes. true = (lists:usort(Monitors) == lists:usort(Monitors2)) after 1000 -> error(timeout) end, ConnsSups = ranch_server:get_connections_sups(Name), ok = ranch:stop_listener(Name), %% Check ranch_server has removed the ranch_conns_sup. [] = (catch ranch_server:get_connections_sups(Name)), _ = erlang:trace(all, false, [all]), ok = clean_traces(). supervisor_unexpected_message(_) -> doc("Ensure the connections supervisor stays alive when it receives " "an unexpected message."), Name = name(), {ok, _} = ranch:start_listener(Name, ranch_tcp, #{}, echo_protocol, []), Port = ranch:get_port(Name), {ok, Socket} = gen_tcp:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), ok = gen_tcp:send(Socket, <<"TCP Ranch is working!">>), {ok, <<"TCP Ranch is working!">>} = gen_tcp:recv(Socket, 21, 1000), %% Send the unexpected message to all ranch_conns_sups. _ = [ConnSup ! hello || {_, ConnSup} <- ranch_server:get_connections_sups(Name)], %% Connection is still up. ok = gen_tcp:send(Socket, <<"TCP Ranch is working!">>), {ok, <<"TCP Ranch is working!">>} = gen_tcp:recv(Socket, 21, 1000), ok = ranch:stop_listener(Name), {error, closed} = gen_tcp:recv(Socket, 0, 1000), %% Make sure the listener stopped. {'EXIT', _} = begin catch ranch:get_port(Name) end, ok. %% Utility functions. connect_loop(_, 0, _) -> ok; connect_loop(Port, N, Sleep) -> {ok, _} = gen_tcp:connect("localhost", Port, [binary, {active, false}, {packet, raw}]), receive after Sleep -> ok end, connect_loop(Port, N - 1, Sleep). receive_loop(Message, Timeout) -> receive_loop(Message, Timeout, 0). receive_loop(Message, Timeout, N) -> receive Message -> receive_loop(Message, Timeout, N + 1) after Timeout -> N end. clean_traces() -> receive {trace, _, _, _} -> clean_traces(); {trace, _, _, _, _} -> clean_traces() after 0 -> ok end. do_get_listener_socket(ListenerSupPid) -> [LSocket] = do_get_listener_sockets(ListenerSupPid), LSocket. do_get_listener_sockets(ListenerSupPid) -> [AcceptorsSupPid] = [Pid || {ranch_acceptors_sup, Pid, supervisor, _} <- supervisor:which_children(ListenerSupPid)], {links, Links} = erlang:process_info(AcceptorsSupPid, links), [P || P <- Links, is_port(P)]. do_conns_which_children(Name) -> Conns = [supervisor:which_children(ConnsSup) || {_, ConnsSup} <- ranch_server:get_connections_sups(Name)], lists:flatten(Conns). do_conns_count_children(Name) -> lists:foldl( fun (Stats, undefined) -> Stats; (Stats, Acc) -> lists:zipwith( fun ({K, V1}, {K, V2}) -> {K, V1+V2} end, Acc, Stats ) end, undefined, [supervisor:count_children(ConnsSup) || {_, ConnsSup} <- ranch_server:get_connections_sups(Name)] ). do_os_supports_reuseport() -> case {os:type(), os:version()} of {{unix, linux}, {Major, _, _}} when Major > 3 -> true; {{unix, linux}, {3, Minor, _}} when Minor >= 9 -> true; _ -> false end.