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-rw-r--r--lib/ssl/src/Makefile3
-rw-r--r--lib/ssl/src/ssl.app.src1
-rw-r--r--lib/ssl/src/ssl.erl114
-rw-r--r--lib/ssl/src/ssl_alert.erl29
-rw-r--r--lib/ssl/src/ssl_alert.hrl2
-rw-r--r--lib/ssl/src/ssl_connection.erl2
-rw-r--r--lib/ssl/src/ssl_dist_sup.erl16
-rw-r--r--lib/ssl/src/ssl_internal.hrl17
-rw-r--r--lib/ssl/src/ssl_listen_tracker_sup.erl71
-rw-r--r--lib/ssl/src/ssl_socket.erl196
-rw-r--r--lib/ssl/src/ssl_sup.erl19
-rw-r--r--lib/ssl/src/tls_connection.erl22
-rw-r--r--lib/ssl/src/tls_connection_sup.erl4
-rw-r--r--lib/ssl/test/ssl_basic_SUITE.erl129
-rw-r--r--lib/ssl/test/ssl_test_lib.erl33
15 files changed, 561 insertions, 97 deletions
diff --git a/lib/ssl/src/Makefile b/lib/ssl/src/Makefile
index 131b615277..7c4c8ec2cc 100644
--- a/lib/ssl/src/Makefile
+++ b/lib/ssl/src/Makefile
@@ -1,7 +1,7 @@
#
# %CopyrightBegin%
#
-# Copyright Ericsson AB 1999-2013. All Rights Reserved.
+# Copyright Ericsson AB 1999-2014. All Rights Reserved.
#
# The contents of this file are subject to the Erlang Public License,
# Version 1.1, (the "License"); you may not use this file except in
@@ -66,6 +66,7 @@ MODULES= \
ssl_session \
ssl_session_cache \
ssl_socket \
+ ssl_listen_tracker_sup \
tls_record \
dtls_record \
ssl_record \
diff --git a/lib/ssl/src/ssl.app.src b/lib/ssl/src/ssl.app.src
index 99839f6149..36681e2897 100644
--- a/lib/ssl/src/ssl.app.src
+++ b/lib/ssl/src/ssl.app.src
@@ -28,6 +28,7 @@
ssl_srp_primes,
ssl_alert,
ssl_socket,
+ ssl_listen_tracker_sup,
%% Erlang Distribution over SSL/TLS
inet_tls_dist,
ssl_tls_dist_proxy,
diff --git a/lib/ssl/src/ssl.erl b/lib/ssl/src/ssl.erl
index 866312f332..234db21443 100644
--- a/lib/ssl/src/ssl.erl
+++ b/lib/ssl/src/ssl.erl
@@ -97,17 +97,17 @@ connect(Socket, SslOptions) when is_port(Socket) ->
connect(Socket, SslOptions0, Timeout) when is_port(Socket) ->
{Transport,_,_,_} = proplists:get_value(cb_info, SslOptions0,
{gen_tcp, tcp, tcp_closed, tcp_error}),
- EmulatedOptions = emulated_options(),
+ EmulatedOptions = ssl_socket:emulated_options(),
{ok, SocketValues} = ssl_socket:getopts(Transport, Socket, EmulatedOptions),
try handle_options(SslOptions0 ++ SocketValues, client) of
{ok, #config{transport_info = CbInfo, ssl = SslOptions, emulated = EmOpts,
connection_cb = ConnectionCb}} ->
- ok = ssl_socket:setopts(Transport, Socket, internal_inet_values()),
+ ok = ssl_socket:setopts(Transport, Socket, ssl_socket:internal_inet_values()),
case ssl_socket:peername(Transport, Socket) of
{ok, {Address, Port}} ->
ssl_connection:connect(ConnectionCb, Address, Port, Socket,
- {SslOptions, EmOpts},
+ {SslOptions, emulated_socket_options(EmOpts, #socket_options{})},
self(), CbInfo, Timeout);
{error, Error} ->
{error, Error}
@@ -141,10 +141,13 @@ listen(Port, Options0) ->
try
{ok, Config} = handle_options(Options0, server),
ConnectionCb = connection_cb(Options0),
- #config{transport_info = {Transport, _, _, _}, inet_user = Options, connection_cb = ConnectionCb} = Config,
+ #config{transport_info = {Transport, _, _, _}, inet_user = Options, connection_cb = ConnectionCb,
+ ssl = SslOpts, emulated = EmOpts} = Config,
case Transport:listen(Port, Options) of
{ok, ListenSocket} ->
- {ok, #sslsocket{pid = {ListenSocket, Config}}};
+ ok = ssl_socket:setopts(Transport, ListenSocket, ssl_socket:internal_inet_values()),
+ {ok, Tracker} = ssl_socket:inherit_tracker(ListenSocket, EmOpts, SslOpts),
+ {ok, #sslsocket{pid = {ListenSocket, Config#config{emulated = Tracker}}}};
Err = {error, _} ->
Err
end
@@ -164,21 +167,16 @@ transport_accept(ListenSocket) ->
transport_accept(ListenSocket, infinity).
transport_accept(#sslsocket{pid = {ListenSocket,
- #config{transport_info = CbInfo,
+ #config{transport_info = {Transport,_,_, _} =CbInfo,
connection_cb = ConnectionCb,
- ssl = SslOpts}}}, Timeout) ->
- %% The setopt could have been invoked on the listen socket
- %% and options should be inherited.
- EmOptions = emulated_options(),
- {Transport,_,_, _} = CbInfo,
- {ok, SocketValues} = ssl_socket:getopts(Transport, ListenSocket, EmOptions),
- ok = ssl_socket:setopts(Transport, ListenSocket, internal_inet_values()),
+ ssl = SslOpts,
+ emulated = Tracker}}}, Timeout) ->
case Transport:accept(ListenSocket, Timeout) of
{ok, Socket} ->
- ok = ssl_socket:setopts(Transport, ListenSocket, SocketValues),
+ {ok, EmOpts} = ssl_socket:get_emulated_opts(Tracker),
{ok, Port} = ssl_socket:port(Transport, Socket),
ConnArgs = [server, "localhost", Port, Socket,
- {SslOpts, socket_options(SocketValues)}, self(), CbInfo],
+ {SslOpts, emulated_socket_options(EmOpts, #socket_options{})}, self(), CbInfo],
ConnectionSup = connection_sup(ConnectionCb),
case ConnectionSup:start_child(ConnArgs) of
{ok, Pid} ->
@@ -223,16 +221,16 @@ ssl_accept(#sslsocket{} = Socket, SslOptions, Timeout) ->
ssl_accept(Socket, SslOptions, Timeout) when is_port(Socket) ->
{Transport,_,_,_} =
proplists:get_value(cb_info, SslOptions, {gen_tcp, tcp, tcp_closed, tcp_error}),
- EmulatedOptions = emulated_options(),
+ EmulatedOptions = ssl_socket:emulated_options(),
{ok, SocketValues} = ssl_socket:getopts(Transport, Socket, EmulatedOptions),
ConnetionCb = connection_cb(SslOptions),
try handle_options(SslOptions ++ SocketValues, server) of
{ok, #config{transport_info = CbInfo, ssl = SslOpts, emulated = EmOpts}} ->
- ok = ssl_socket:setopts(Transport, Socket, internal_inet_values()),
+ ok = ssl_socket:setopts(Transport, Socket, ssl_socket:internal_inet_values()),
{ok, Port} = ssl_socket:port(Transport, Socket),
ssl_connection:ssl_accept(ConnetionCb, Port, Socket,
- {SslOpts, EmOpts},
- self(), CbInfo, Timeout)
+ {SslOpts, emulated_socket_options(EmOpts, #socket_options{})},
+ self(), CbInfo, Timeout)
catch
Error = {error, _Reason} -> Error
end.
@@ -367,7 +365,7 @@ cipher_suites(all) ->
%%--------------------------------------------------------------------
getopts(#sslsocket{pid = Pid}, OptionTags) when is_pid(Pid), is_list(OptionTags) ->
ssl_connection:get_opts(Pid, OptionTags);
-getopts(#sslsocket{pid = {ListenSocket, #config{transport_info = {Transport,_,_,_}}}},
+getopts(#sslsocket{pid = {_, #config{transport_info = {Transport,_,_,_}}}} = ListenSocket,
OptionTags) when is_list(OptionTags) ->
try ssl_socket:getopts(Transport, ListenSocket, OptionTags) of
{ok, _} = Result ->
@@ -375,8 +373,8 @@ getopts(#sslsocket{pid = {ListenSocket, #config{transport_info = {Transport,_,_
{error, InetError} ->
{error, {options, {socket_options, OptionTags, InetError}}}
catch
- _:_ ->
- {error, {options, {socket_options, OptionTags}}}
+ _:Error ->
+ {error, {options, {socket_options, OptionTags, Error}}}
end;
getopts(#sslsocket{}, OptionTags) ->
{error, {options, {socket_options, OptionTags}}}.
@@ -396,7 +394,7 @@ setopts(#sslsocket{pid = Pid}, Options0) when is_pid(Pid), is_list(Options0) ->
{error, {options, {not_a_proplist, Options0}}}
end;
-setopts(#sslsocket{pid = {ListenSocket, #config{transport_info = {Transport,_,_,_}}}}, Options) when is_list(Options) ->
+setopts(#sslsocket{pid = {_, #config{transport_info = {Transport,_,_,_}}}} = ListenSocket, Options) when is_list(Options) ->
try ssl_socket:setopts(Transport, ListenSocket, Options) of
ok ->
ok;
@@ -547,7 +545,8 @@ do_connect(Address, Port,
{Transport, _, _, _} = CbInfo,
try Transport:connect(Address, Port, SocketOpts, Timeout) of
{ok, Socket} ->
- ssl_connection:connect(ConnetionCb, Address, Port, Socket, {SslOpts,EmOpts},
+ ssl_connection:connect(ConnetionCb, Address, Port, Socket,
+ {SslOpts, emulated_socket_options(EmOpts, #socket_options{})},
self(), CbInfo, Timeout);
{error, Reason} ->
{error, Reason}
@@ -637,7 +636,8 @@ handle_options(Opts0, _Role) ->
user_lookup_fun = handle_option(user_lookup_fun, Opts, undefined),
psk_identity = handle_option(psk_identity, Opts, undefined),
srp_identity = handle_option(srp_identity, Opts, undefined),
- ciphers = handle_cipher_option(proplists:get_value(ciphers, Opts, []), hd(Versions)),
+ ciphers = handle_cipher_option(proplists:get_value(ciphers, Opts, []),
+ RecordCb:highest_protocol_version(Versions)),
%% Server side option
reuse_session = handle_option(reuse_session, Opts, ReuseSessionFun),
reuse_sessions = handle_option(reuse_sessions, Opts, true),
@@ -900,40 +900,24 @@ ca_cert_default(verify_peer, {Fun,_}, _) when is_function(Fun) ->
%% some trusted certs.
ca_cert_default(verify_peer, undefined, _) ->
"".
-
-emulated_options() ->
- [mode, packet, active, header, packet_size].
-
-internal_inet_values() ->
- [{packet_size,0},{packet, 0},{header, 0},{active, false},{mode,binary}].
-
-socket_options(InetValues) ->
- #socket_options{
- mode = proplists:get_value(mode, InetValues, lists),
- header = proplists:get_value(header, InetValues, 0),
- active = proplists:get_value(active, InetValues, active),
- packet = proplists:get_value(packet, InetValues, 0),
- packet_size = proplists:get_value(packet_size, InetValues)
- }.
-
emulated_options(Opts) ->
- emulated_options(Opts, internal_inet_values(), #socket_options{}).
-
-emulated_options([{mode,Opt}|Opts], Inet, Emulated) ->
- validate_inet_option(mode,Opt),
- emulated_options(Opts, Inet, Emulated#socket_options{mode=Opt});
-emulated_options([{header,Opt}|Opts], Inet, Emulated) ->
- validate_inet_option(header,Opt),
- emulated_options(Opts, Inet, Emulated#socket_options{header=Opt});
-emulated_options([{active,Opt}|Opts], Inet, Emulated) ->
- validate_inet_option(active,Opt),
- emulated_options(Opts, Inet, Emulated#socket_options{active=Opt});
-emulated_options([{packet,Opt}|Opts], Inet, Emulated) ->
- validate_inet_option(packet,Opt),
- emulated_options(Opts, Inet, Emulated#socket_options{packet=Opt});
-emulated_options([{packet_size,Opt}|Opts], Inet, Emulated) ->
- validate_inet_option(packet_size,Opt),
- emulated_options(Opts, Inet, Emulated#socket_options{packet_size=Opt});
+ emulated_options(Opts, ssl_socket:internal_inet_values(), ssl_socket:default_inet_values()).
+
+emulated_options([{mode, Value} = Opt |Opts], Inet, Emulated) ->
+ validate_inet_option(mode, Value),
+ emulated_options(Opts, Inet, [Opt | proplists:delete(mode, Emulated)]);
+emulated_options([{header, Value} = Opt | Opts], Inet, Emulated) ->
+ validate_inet_option(header, Value),
+ emulated_options(Opts, Inet, [Opt | proplists:delete(header, Emulated)]);
+emulated_options([{active, Value} = Opt |Opts], Inet, Emulated) ->
+ validate_inet_option(active, Value),
+ emulated_options(Opts, Inet, [Opt | proplists:delete(active, Emulated)]);
+emulated_options([{packet, Value} = Opt |Opts], Inet, Emulated) ->
+ validate_inet_option(packet, Value),
+ emulated_options(Opts, Inet, [Opt | proplists:delete(packet, Emulated)]);
+emulated_options([{packet_size, Value} = Opt | Opts], Inet, Emulated) ->
+ validate_inet_option(packet_size, Value),
+ emulated_options(Opts, Inet, [Opt | proplists:delete(packet_size, Emulated)]);
emulated_options([Opt|Opts], Inet, Emulated) ->
emulated_options(Opts, [Opt|Inet], Emulated);
emulated_options([], Inet,Emulated) ->
@@ -1072,3 +1056,17 @@ assert_proplist([inet6 | Rest]) ->
assert_proplist(Rest);
assert_proplist([Value | _]) ->
throw({option_not_a_key_value_tuple, Value}).
+
+emulated_socket_options(InetValues, #socket_options{
+ mode = Mode,
+ header = Header,
+ active = Active,
+ packet = Packet,
+ packet_size = Size}) ->
+ #socket_options{
+ mode = proplists:get_value(mode, InetValues, Mode),
+ header = proplists:get_value(header, InetValues, Header),
+ active = proplists:get_value(active, InetValues, Active),
+ packet = proplists:get_value(packet, InetValues, Packet),
+ packet_size = proplists:get_value(packet_size, InetValues, Size)
+ }.
diff --git a/lib/ssl/src/ssl_alert.erl b/lib/ssl/src/ssl_alert.erl
index db1535b5ec..78dc98bc25 100644
--- a/lib/ssl/src/ssl_alert.erl
+++ b/lib/ssl/src/ssl_alert.erl
@@ -31,7 +31,7 @@
-include("ssl_record.hrl").
-include("ssl_internal.hrl").
--export([encode/3, alert_txt/1, reason_code/2]).
+-export([encode/3, decode/1, alert_txt/1, reason_code/2]).
%%====================================================================
%% Internal application API
@@ -41,12 +41,21 @@
-spec encode(#alert{}, ssl_record:ssl_version(), #connection_states{}) ->
{iolist(), #connection_states{}}.
%%
-%% Description:
+%% Description: Encodes an alert
%%--------------------------------------------------------------------
encode(#alert{} = Alert, Version, ConnectionStates) ->
ssl_record:encode_alert_record(Alert, Version, ConnectionStates).
%%--------------------------------------------------------------------
+-spec decode(binary()) -> [#alert{}] | #alert{}.
+%%
+%% Description: Decode alert(s), will return a singel own alert if peer
+%% sends garbage or too many warning alerts.
+%%--------------------------------------------------------------------
+decode(Bin) ->
+ decode(Bin, [], 0).
+
+%%--------------------------------------------------------------------
-spec reason_code(#alert{}, client | server) -> closed | {essl, string()}.
%%
%% Description: Returns the error reason that will be returned to the
@@ -71,6 +80,22 @@ alert_txt(#alert{level = Level, description = Description, where = {Mod,Line}})
%%--------------------------------------------------------------------
%%% Internal functions
%%--------------------------------------------------------------------
+
+%% It is very unlikely that an correct implementation will send more than one alert at the time
+%% So it there is more than 10 warning alerts we consider it an error
+decode(<<?BYTE(Level), ?BYTE(_), _/binary>>, _, N) when Level == ?WARNING, N > ?MAX_ALERTS ->
+ ?ALERT_REC(?FATAL, ?DECODE_ERROR);
+decode(<<?BYTE(Level), ?BYTE(Description), Rest/binary>>, Acc, N) when Level == ?WARNING ->
+ Alert = ?ALERT_REC(Level, Description),
+ decode(Rest, [Alert | Acc], N + 1);
+decode(<<?BYTE(Level), ?BYTE(Description), _Rest/binary>>, Acc, _) when Level == ?FATAL->
+ Alert = ?ALERT_REC(Level, Description),
+ lists:reverse([Alert | Acc]); %% No need to decode rest fatal alert will end the connection
+decode(<<?BYTE(_Level), _/binary>>, _, _) ->
+ ?ALERT_REC(?FATAL, ?ILLEGAL_PARAMETER);
+decode(<<>>, Acc, _) ->
+ lists:reverse(Acc, []).
+
level_txt(?WARNING) ->
"Warning:";
level_txt(?FATAL) ->
diff --git a/lib/ssl/src/ssl_alert.hrl b/lib/ssl/src/ssl_alert.hrl
index 2d1f323085..f4f1d74264 100644
--- a/lib/ssl/src/ssl_alert.hrl
+++ b/lib/ssl/src/ssl_alert.hrl
@@ -104,6 +104,8 @@
-define(ALERT_REC(Level,Desc), #alert{level=Level,description=Desc,where={?FILE, ?LINE}}).
+-define(MAX_ALERTS, 10).
+
%% Alert
-record(alert, {
level,
diff --git a/lib/ssl/src/ssl_connection.erl b/lib/ssl/src/ssl_connection.erl
index 1eda926bcb..f681204de6 100644
--- a/lib/ssl/src/ssl_connection.erl
+++ b/lib/ssl/src/ssl_connection.erl
@@ -602,7 +602,7 @@ cipher(#finished{verify_data = Data} = Finished,
cipher(#next_protocol{selected_protocol = SelectedProtocol},
#state{role = server, expecting_next_protocol_negotiation = true} = State0, Connection) ->
{Record, State} = Connection:next_record(State0#state{next_protocol = SelectedProtocol}),
- Connection:next_state(cipher, cipher, Record, State);
+ Connection:next_state(cipher, cipher, Record, State#state{expecting_next_protocol_negotiation = false});
cipher(timeout, State, _) ->
{next_state, cipher, State, hibernate};
diff --git a/lib/ssl/src/ssl_dist_sup.erl b/lib/ssl/src/ssl_dist_sup.erl
index 22614a2d34..58efeaf892 100644
--- a/lib/ssl/src/ssl_dist_sup.erl
+++ b/lib/ssl/src/ssl_dist_sup.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2011-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2011-2014. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -45,9 +45,11 @@ start_link() ->
init([]) ->
SessionCertManager = session_and_cert_manager_child_spec(),
ConnetionManager = connection_manager_child_spec(),
+ ListenOptionsTracker = listen_options_tracker_child_spec(),
ProxyServer = proxy_server_child_spec(),
- {ok, {{one_for_all, 10, 3600}, [SessionCertManager, ConnetionManager,
+ {ok, {{one_for_all, 10, 3600}, [SessionCertManager, ConnetionManager,
+ ListenOptionsTracker,
ProxyServer]}}.
%%--------------------------------------------------------------------
@@ -68,7 +70,7 @@ connection_manager_child_spec() ->
StartFunc = {tls_connection_sup, start_link_dist, []},
Restart = permanent,
Shutdown = 4000,
- Modules = [ssl_connection],
+ Modules = [tls_connection_sup],
Type = supervisor,
{Name, StartFunc, Restart, Shutdown, Type, Modules}.
@@ -81,3 +83,11 @@ proxy_server_child_spec() ->
Type = worker,
{Name, StartFunc, Restart, Shutdown, Type, Modules}.
+listen_options_tracker_child_spec() ->
+ Name = ssl_socket_dist,
+ StartFunc = {ssl_listen_tracker_sup, start_link_dist, []},
+ Restart = permanent,
+ Shutdown = 4000,
+ Modules = [ssl_socket],
+ Type = supervisor,
+ {Name, StartFunc, Restart, Shutdown, Type, Modules}.
diff --git a/lib/ssl/src/ssl_internal.hrl b/lib/ssl/src/ssl_internal.hrl
index 8bf5b30a83..fd0d87bd5f 100644
--- a/lib/ssl/src/ssl_internal.hrl
+++ b/lib/ssl/src/ssl_internal.hrl
@@ -116,14 +116,6 @@
honor_cipher_order = false
}).
--record(config, {ssl, %% SSL parameters
- inet_user, %% User set inet options
- emulated, %% #socket_option{} emulated
- inet_ssl, %% inet options for internal ssl socket
- transport_info, %% Callback info
- connection_cb
- }).
-
-record(socket_options,
{
mode = list,
@@ -133,6 +125,15 @@
active = true
}).
+-record(config, {ssl, %% SSL parameters
+ inet_user, %% User set inet options
+ emulated, %% Emulated option list or "inherit_tracker" pid
+ inet_ssl, %% inet options for internal ssl socket
+ transport_info, %% Callback info
+ connection_cb
+ }).
+
+
-type state_name() :: hello | abbreviated | certify | cipher | connection.
-type gen_fsm_state_return() :: {next_state, state_name(), term()} |
{next_state, state_name(), term(), timeout()} |
diff --git a/lib/ssl/src/ssl_listen_tracker_sup.erl b/lib/ssl/src/ssl_listen_tracker_sup.erl
new file mode 100644
index 0000000000..29f40e846d
--- /dev/null
+++ b/lib/ssl/src/ssl_listen_tracker_sup.erl
@@ -0,0 +1,71 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2014-2014. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+%%
+%%----------------------------------------------------------------------
+%% Purpose: Supervisor for a listen options tracker
+%%----------------------------------------------------------------------
+-module(ssl_listen_tracker_sup).
+
+-behaviour(supervisor).
+
+%% API
+-export([start_link/0, start_link_dist/0]).
+-export([start_child/1, start_child_dist/1]).
+
+%% Supervisor callback
+-export([init/1]).
+
+%%%=========================================================================
+%%% API
+%%%=========================================================================
+start_link() ->
+ supervisor:start_link({local, tracker_name(normal)}, ?MODULE, []).
+
+start_link_dist() ->
+ supervisor:start_link({local, tracker_name(dist)}, ?MODULE, []).
+
+start_child(Args) ->
+ supervisor:start_child(tracker_name(normal), Args).
+
+start_child_dist(Args) ->
+ supervisor:start_child(tracker_name(dist), Args).
+
+%%%=========================================================================
+%%% Supervisor callback
+%%%=========================================================================
+init(_O) ->
+ RestartStrategy = simple_one_for_one,
+ MaxR = 0,
+ MaxT = 3600,
+
+ Name = undefined, % As simple_one_for_one is used.
+ StartFunc = {ssl_socket, start_link, []},
+ Restart = temporary, % E.g. should not be restarted
+ Shutdown = 4000,
+ Modules = [ssl_socket],
+ Type = worker,
+
+ ChildSpec = {Name, StartFunc, Restart, Shutdown, Type, Modules},
+ {ok, {{RestartStrategy, MaxR, MaxT}, [ChildSpec]}}.
+
+tracker_name(normal) ->
+ ?MODULE;
+tracker_name(dist) ->
+ list_to_atom(atom_to_list(?MODULE) ++ "dist").
diff --git a/lib/ssl/src/ssl_socket.erl b/lib/ssl/src/ssl_socket.erl
index 1b6e637cd3..8532788ffd 100644
--- a/lib/ssl/src/ssl_socket.erl
+++ b/lib/ssl/src/ssl_socket.erl
@@ -1,20 +1,72 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 1998-2014. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
-module(ssl_socket).
+-behaviour(gen_server).
+
-include("ssl_internal.hrl").
-include("ssl_api.hrl").
-export([socket/4, setopts/3, getopts/3, peername/2, sockname/2, port/2]).
+-export([emulated_options/0, internal_inet_values/0, default_inet_values/0,
+ init/1, start_link/2, terminate/2, inherit_tracker/3, get_emulated_opts/1,
+ set_emulated_opts/2, handle_call/3, handle_cast/2,
+ handle_info/2, code_change/3]).
+
+-record(state, {
+ emulated_opts,
+ port
+ }).
+%%--------------------------------------------------------------------
+%%% Internal API
+%%--------------------------------------------------------------------
socket(Pid, Transport, Socket, ConnectionCb) ->
#sslsocket{pid = Pid,
%% "The name "fd" is keept for backwards compatibility
fd = {Transport, Socket, ConnectionCb}}.
-
+setopts(gen_tcp, #sslsocket{pid = {ListenSocket, #config{emulated = Tracker}}}, Options) ->
+ {SockOpts, EmulatedOpts} = split_options(Options),
+ ok = set_emulated_opts(Tracker, EmulatedOpts),
+ inet:setopts(ListenSocket, SockOpts);
+setopts(_, #sslsocket{pid = {ListenSocket, #config{transport_info = {Transport,_,_,_},
+ emulated = Tracker}}}, Options) ->
+ {SockOpts, EmulatedOpts} = split_options(Options),
+ ok = set_emulated_opts(Tracker, EmulatedOpts),
+ Transport:setopts(ListenSocket, SockOpts);
+%%% Following clauses will not be called for emulated options, they are handled in the connection process
setopts(gen_tcp, Socket, Options) ->
inet:setopts(Socket, Options);
setopts(Transport, Socket, Options) ->
Transport:setopts(Socket, Options).
+getopts(gen_tcp, #sslsocket{pid = {ListenSocket, #config{emulated = Tracker}}}, Options) ->
+ {SockOptNames, EmulatedOptNames} = split_options(Options),
+ EmulatedOpts = get_emulated_opts(Tracker, EmulatedOptNames),
+ SocketOpts = get_socket_opts(ListenSocket, SockOptNames, inet),
+ {ok, EmulatedOpts ++ SocketOpts};
+getopts(Transport, #sslsocket{pid = {ListenSocket, #config{emulated = Tracker}}}, Options) ->
+ {SockOptNames, EmulatedOptNames} = split_options(Options),
+ EmulatedOpts = get_emulated_opts(Tracker, EmulatedOptNames),
+ SocketOpts = get_socket_opts(ListenSocket, SockOptNames, Transport),
+ {ok, EmulatedOpts ++ SocketOpts};
+%%% Following clauses will not be called for emulated options, they are handled in the connection process
getopts(gen_tcp, Socket, Options) ->
inet:getopts(Socket, Options);
getopts(Transport, Socket, Options) ->
@@ -34,3 +86,145 @@ port(gen_tcp, Socket) ->
inet:port(Socket);
port(Transport, Socket) ->
Transport:port(Socket).
+
+emulated_options() ->
+ [mode, packet, active, header, packet_size].
+
+internal_inet_values() ->
+ [{packet_size,0}, {packet, 0}, {header, 0}, {active, false}, {mode,binary}].
+
+default_inet_values() ->
+ [{packet_size, 0}, {packet,0}, {header, 0}, {active, true}, {mode, list}].
+
+inherit_tracker(ListenSocket, EmOpts, #ssl_options{erl_dist = false}) ->
+ ssl_listen_tracker_sup:start_child([ListenSocket, EmOpts]);
+inherit_tracker(ListenSocket, EmOpts, #ssl_options{erl_dist = true}) ->
+ ssl_listen_tracker_sup:start_child_dist([ListenSocket, EmOpts]).
+
+get_emulated_opts(TrackerPid, EmOptNames) ->
+ {ok, EmOpts} = get_emulated_opts(TrackerPid),
+ lists:map(fun(Name) -> {value, Value} = lists:keysearch(Name, 1, EmOpts),
+ Value end,
+ EmOptNames).
+
+get_emulated_opts(TrackerPid) ->
+ call(TrackerPid, get_emulated_opts).
+set_emulated_opts(TrackerPid, InetValues) ->
+ call(TrackerPid, {set_emulated_opts, InetValues}).
+
+%%====================================================================
+%% ssl_listen_tracker_sup API
+%%====================================================================
+
+start_link(Port, SockOpts) ->
+ gen_server:start_link(?MODULE, [Port, SockOpts], []).
+
+%%--------------------------------------------------------------------
+-spec init(list()) -> {ok, #state{}}.
+%% Possible return values not used now.
+%% | {ok, #state{}, timeout()} | ignore | {stop, term()}.
+%%
+%% Description: Initiates the server
+%%--------------------------------------------------------------------
+init([Port, Opts]) ->
+ process_flag(trap_exit, true),
+ true = link(Port),
+ {ok, #state{emulated_opts = Opts, port = Port}}.
+
+%%--------------------------------------------------------------------
+-spec handle_call(msg(), from(), #state{}) -> {reply, reply(), #state{}}.
+%% Possible return values not used now.
+%% {reply, reply(), #state{}, timeout()} |
+%% {noreply, #state{}} |
+%% {noreply, #state{}, timeout()} |
+%% {stop, reason(), reply(), #state{}} |
+%% {stop, reason(), #state{}}.
+%%
+%% Description: Handling call messages
+%%--------------------------------------------------------------------
+handle_call({set_emulated_opts, Opts0}, _From,
+ #state{emulated_opts = Opts1} = State) ->
+ Opts = do_set_emulated_opts(Opts0, Opts1),
+ {reply, ok, State#state{emulated_opts = Opts}};
+handle_call(get_emulated_opts, _From,
+ #state{emulated_opts = Opts} = State) ->
+ {reply, {ok, Opts}, State}.
+
+%%--------------------------------------------------------------------
+-spec handle_cast(msg(), #state{}) -> {noreply, #state{}}.
+%% Possible return values not used now.
+%% | {noreply, #state{}, timeout()} |
+%% {stop, reason(), #state{}}.
+%%
+%% Description: Handling cast messages
+%%--------------------------------------------------------------------
+handle_cast(_, State)->
+ {noreply, State}.
+
+%%--------------------------------------------------------------------
+-spec handle_info(msg(), #state{}) -> {stop, reason(), #state{}}.
+%% Possible return values not used now.
+%% {noreply, #state{}}.
+%% |{noreply, #state{}, timeout()} |
+%%
+%%
+%% Description: Handling all non call/cast messages
+%%-------------------------------------------------------------------
+handle_info({'EXIT', Port, _}, #state{port = Port} = State) ->
+ {stop, normal, State}.
+
+
+%%--------------------------------------------------------------------
+-spec terminate(reason(), #state{}) -> ok.
+%%
+%% Description: This function is called by a gen_server when it is about to
+%% terminate. It should be the opposite of Module:init/1 and do any necessary
+%% cleaning up. When it returns, the gen_server terminates with Reason.
+%% The return value is ignored.
+%%--------------------------------------------------------------------
+terminate(_Reason, _State) ->
+ ok.
+
+%%--------------------------------------------------------------------
+-spec code_change(term(), #state{}, list()) -> {ok, #state{}}.
+%%
+%% Description: Convert process state when code is changed
+%%--------------------------------------------------------------------
+code_change(_OldVsn, State, _Extra) ->
+ {ok, State}.
+
+%%--------------------------------------------------------------------
+%%% Internal functions
+%%--------------------------------------------------------------------
+call(Pid, Msg) ->
+ gen_server:call(Pid, Msg, infinity).
+
+split_options(Opts) ->
+ split_options(Opts, emulated_options(), [], []).
+split_options([], _, SocketOpts, EmuOpts) ->
+ {SocketOpts, EmuOpts};
+split_options([{Name, _} = Opt | Opts], Emu, SocketOpts, EmuOpts) ->
+ case lists:member(Name, Emu) of
+ true ->
+ split_options(Opts, Emu, SocketOpts, [Opt | EmuOpts]);
+ false ->
+ split_options(Opts, Emu, [Opt | SocketOpts], EmuOpts)
+ end;
+split_options([Name | Opts], Emu, SocketOptNames, EmuOptNames) ->
+ case lists:member(Name, Emu) of
+ true ->
+ split_options(Opts, Emu, SocketOptNames, [Name | EmuOptNames]);
+ false ->
+ split_options(Opts, Emu, [Name | SocketOptNames], EmuOptNames)
+ end.
+
+do_set_emulated_opts([], Opts) ->
+ Opts;
+do_set_emulated_opts([{Name,_} = Opt | Rest], Opts) ->
+ do_set_emulated_opts(Rest, [Opt | proplists:delete(Name, Opts)]).
+
+get_socket_opts(_, [], _) ->
+ [];
+get_socket_opts(ListenSocket, SockOptNames, Cb) ->
+ {ok, Opts} = Cb:getopts(ListenSocket, SockOptNames),
+ Opts.
diff --git a/lib/ssl/src/ssl_sup.erl b/lib/ssl/src/ssl_sup.erl
index e1aeb11ca4..7cccf8d5a5 100644
--- a/lib/ssl/src/ssl_sup.erl
+++ b/lib/ssl/src/ssl_sup.erl
@@ -47,8 +47,10 @@ init([]) ->
TLSConnetionManager = tls_connection_manager_child_spec(),
%% Not supported yet
%%DTLSConnetionManager = tls_connection_manager_child_spec(),
-
- {ok, {{one_for_all, 10, 3600}, [SessionCertManager, TLSConnetionManager]}}.
+ %% Handles emulated options so that they inherited by the accept socket, even when setopts is performed on
+ %% the listen socket
+ ListenOptionsTracker = listen_options_tracker_child_spec(),
+ {ok, {{one_for_all, 10, 3600}, [SessionCertManager, TLSConnetionManager, ListenOptionsTracker]}}.
manager_opts() ->
@@ -85,7 +87,7 @@ tls_connection_manager_child_spec() ->
StartFunc = {tls_connection_sup, start_link, []},
Restart = permanent,
Shutdown = 4000,
- Modules = [tls_connection, ssl_connection],
+ Modules = [tls_connection_sup],
Type = supervisor,
{Name, StartFunc, Restart, Shutdown, Type, Modules}.
@@ -98,6 +100,17 @@ tls_connection_manager_child_spec() ->
%% Type = supervisor,
%% {Name, StartFunc, Restart, Shutdown, Type, Modules}.
+
+listen_options_tracker_child_spec() ->
+ Name = ssl_socket,
+ StartFunc = {ssl_listen_tracker_sup, start_link, []},
+ Restart = permanent,
+ Shutdown = 4000,
+ Modules = [ssl_socket],
+ Type = supervisor,
+ {Name, StartFunc, Restart, Shutdown, Type, Modules}.
+
+
session_cb_init_args() ->
case application:get_env(ssl, session_cb_init_args) of
{ok, Args} when is_list(Args) ->
diff --git a/lib/ssl/src/tls_connection.erl b/lib/ssl/src/tls_connection.erl
index 930706cde6..32086ff6ce 100644
--- a/lib/ssl/src/tls_connection.erl
+++ b/lib/ssl/src/tls_connection.erl
@@ -362,20 +362,11 @@ encode_handshake(Handshake, Version, ConnectionStates0, Hist0) ->
ssl_record:encode_handshake(Frag, Version, ConnectionStates0),
{Encoded, ConnectionStates, Hist}.
-
encode_change_cipher(#change_cipher_spec{}, Version, ConnectionStates) ->
ssl_record:encode_change_cipher_spec(Version, ConnectionStates).
-
-
decode_alerts(Bin) ->
- decode_alerts(Bin, []).
-
-decode_alerts(<<?BYTE(Level), ?BYTE(Description), Rest/binary>>, Acc) ->
- A = ?ALERT_REC(Level, Description),
- decode_alerts(Rest, [A | Acc]);
-decode_alerts(<<>>, Acc) ->
- lists:reverse(Acc, []).
+ ssl_alert:decode(Bin).
initial_state(Role, Host, Port, Socket, {SSLOptions, SocketOptions}, User,
{CbModule, DataTag, CloseTag, ErrorTag}) ->
@@ -420,10 +411,13 @@ next_state(Current,_, #alert{} = Alert, #state{negotiated_version = Version} = S
next_state(_,Next, no_record, State) ->
{next_state, Next, State, get_timeout(State)};
-next_state(_,Next, #ssl_tls{type = ?ALERT, fragment = EncAlerts}, State) ->
- Alerts = decode_alerts(EncAlerts),
- handle_alerts(Alerts, {next_state, Next, State, get_timeout(State)});
-
+next_state(Current, Next, #ssl_tls{type = ?ALERT, fragment = EncAlerts}, #state{negotiated_version = Version} = State) ->
+ case decode_alerts(EncAlerts) of
+ Alerts = [_|_] ->
+ handle_alerts(Alerts, {next_state, Next, State, get_timeout(State)});
+ #alert{} = Alert ->
+ handle_own_alert(Alert, Version, Current, State)
+ end;
next_state(Current, Next, #ssl_tls{type = ?HANDSHAKE, fragment = Data},
State0 = #state{protocol_buffers =
#protocol_buffers{tls_handshake_buffer = Buf0} = Buffers,
diff --git a/lib/ssl/src/tls_connection_sup.erl b/lib/ssl/src/tls_connection_sup.erl
index 6f0d8a7262..7a637c212a 100644
--- a/lib/ssl/src/tls_connection_sup.erl
+++ b/lib/ssl/src/tls_connection_sup.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2007-2013. All Rights Reserved.
+%% Copyright Ericsson AB 2007-2014. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -59,7 +59,7 @@ init(_O) ->
StartFunc = {tls_connection, start_link, []},
Restart = temporary, % E.g. should not be restarted
Shutdown = 4000,
- Modules = [tls_connection],
+ Modules = [tls_connection, ssl_connection],
Type = worker,
ChildSpec = {Name, StartFunc, Restart, Shutdown, Type, Modules},
diff --git a/lib/ssl/test/ssl_basic_SUITE.erl b/lib/ssl/test/ssl_basic_SUITE.erl
index 406be65c3b..a1b766e05f 100644
--- a/lib/ssl/test/ssl_basic_SUITE.erl
+++ b/lib/ssl/test/ssl_basic_SUITE.erl
@@ -116,7 +116,9 @@ options_tests() ->
tcp_reuseaddr,
honor_server_cipher_order,
honor_client_cipher_order,
- ciphersuite_vs_version
+ ciphersuite_vs_version,
+ unordered_protocol_versions_server,
+ unordered_protocol_versions_client
].
api_tests() ->
@@ -139,7 +141,8 @@ api_tests() ->
ssl_accept_timeout,
ssl_recv_timeout,
versions_option,
- server_name_indication_option
+ server_name_indication_option,
+ accept_pool
].
session_tests() ->
@@ -244,6 +247,14 @@ end_per_group(_GroupName, Config) ->
Config.
%%--------------------------------------------------------------------
+init_per_testcase(Case, Config) when Case == unordered_protocol_versions_client;
+ Case == unordered_protocol_versions_server->
+ case proplists:get_value(supported, ssl:versions()) of
+ ['tlsv1.2' | _] ->
+ Config;
+ _ ->
+ {skip, "TLS 1.2 need but not supported on this platform"}
+ end;
init_per_testcase(no_authority_key_identifier, Config) ->
%% Clear cach so that root cert will not
%% be found.
@@ -400,6 +411,7 @@ protocol_versions() ->
protocol_versions(Config) when is_list(Config) ->
basic_test(Config).
+
%%--------------------------------------------------------------------
empty_protocol_versions() ->
[{doc,"Test to set an empty list of protocol versions in app environment."}].
@@ -3087,6 +3099,57 @@ versions_option(Config) when is_list(Config) ->
%%--------------------------------------------------------------------
+unordered_protocol_versions_server() ->
+ [{doc,"Test that the highest protocol is selected even"
+ " when it is not first in the versions list."}].
+
+unordered_protocol_versions_server(Config) when is_list(Config) ->
+ ClientOpts = ?config(client_opts, Config),
+ ServerOpts = ?config(server_opts, Config),
+
+ {ClientNode, ServerNode, Hostname} = ssl_test_lib:run_where(Config),
+ Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0},
+ {from, self()},
+ {mfa, {?MODULE, connection_info_result, []}},
+ {options, [{versions, ['tlsv1.1', 'tlsv1.2']} | ServerOpts]}]),
+ Port = ssl_test_lib:inet_port(Server),
+
+ Client = ssl_test_lib:start_client([{node, ClientNode}, {port, Port},
+ {host, Hostname},
+ {from, self()},
+ {mfa, {?MODULE, connection_info_result, []}},
+ {options, ClientOpts}]),
+ CipherSuite = first_rsa_suite(ssl:cipher_suites()),
+ ServerMsg = ClientMsg = {ok, {'tlsv1.2', CipherSuite}},
+ ssl_test_lib:check_result(Server, ServerMsg, Client, ClientMsg).
+
+%%--------------------------------------------------------------------
+unordered_protocol_versions_client() ->
+ [{doc,"Test that the highest protocol is selected even"
+ " when it is not first in the versions list."}].
+
+unordered_protocol_versions_client(Config) when is_list(Config) ->
+ ClientOpts = ?config(client_opts, Config),
+ ServerOpts = ?config(server_opts, Config),
+
+ {ClientNode, ServerNode, Hostname} = ssl_test_lib:run_where(Config),
+ Server = ssl_test_lib:start_server([{node, ServerNode}, {port, 0},
+ {from, self()},
+ {mfa, {?MODULE, connection_info_result, []}},
+ {options, ServerOpts }]),
+ Port = ssl_test_lib:inet_port(Server),
+
+ Client = ssl_test_lib:start_client([{node, ClientNode}, {port, Port},
+ {host, Hostname},
+ {from, self()},
+ {mfa, {?MODULE, connection_info_result, []}},
+ {options, [{versions, ['tlsv1.1', 'tlsv1.2']} | ClientOpts]}]),
+
+ CipherSuite = first_rsa_suite(ssl:cipher_suites()),
+ ServerMsg = ClientMsg = {ok, {'tlsv1.2', CipherSuite}},
+ ssl_test_lib:check_result(Server, ServerMsg, Client, ClientMsg).
+
+%%--------------------------------------------------------------------
server_name_indication_option() ->
[{doc,"Test API server_name_indication option to connect."}].
@@ -3124,6 +3187,53 @@ server_name_indication_option(Config) when is_list(Config) ->
ssl_test_lib:close(Server),
ssl_test_lib:close(Client0),
ssl_test_lib:close(Client1).
+%%--------------------------------------------------------------------
+
+accept_pool() ->
+ [{doc,"Test having an accept pool."}].
+accept_pool(Config) when is_list(Config) ->
+ ClientOpts = ?config(client_opts, Config),
+ ServerOpts = ?config(server_opts, Config),
+
+ {ClientNode, ServerNode, Hostname} = ssl_test_lib:run_where(Config),
+ Server0 = ssl_test_lib:start_server([{node, ServerNode}, {port, 0},
+ {from, self()},
+ {accepters, 3},
+ {mfa, {ssl_test_lib, send_recv_result_active, []}},
+ {options, ServerOpts}]),
+ Port = ssl_test_lib:inet_port(Server0),
+ [Server1, Server2] = ssl_test_lib:accepters(2),
+
+ Client0 = ssl_test_lib:start_client([{node, ClientNode}, {port, Port},
+ {host, Hostname},
+ {from, self()},
+ {mfa, {ssl_test_lib, send_recv_result_active, []}},
+ {options, ClientOpts}
+ ]),
+
+ Client1 = ssl_test_lib:start_client([{node, ClientNode}, {port, Port},
+ {host, Hostname},
+ {from, self()},
+ {mfa, {ssl_test_lib, send_recv_result_active, []}},
+ {options, ClientOpts}
+ ]),
+
+ Client2 = ssl_test_lib:start_client([{node, ClientNode}, {port, Port},
+ {host, Hostname},
+ {from, self()},
+ {mfa, {ssl_test_lib, send_recv_result_active, []}},
+ {options, ClientOpts}
+ ]),
+
+ ssl_test_lib:check_ok([Server0, Server1, Server2, Client0, Client1, Client2]),
+
+ ssl_test_lib:close(Server0),
+ ssl_test_lib:close(Server1),
+ ssl_test_lib:close(Server2),
+ ssl_test_lib:close(Client0),
+ ssl_test_lib:close(Client1),
+ ssl_test_lib:close(Client2).
+
%%--------------------------------------------------------------------
%% Internal functions ------------------------------------------------
@@ -3635,6 +3745,10 @@ cipher(CipherSuite, Version, Config, ClientOpts, ServerOpts) ->
connection_info_result(Socket) ->
ssl:connection_info(Socket).
+version_info_result(Socket) ->
+ {ok, {Version, _}} = ssl:connection_info(Socket),
+ {ok, Version}.
+
connect_dist_s(S) ->
Msg = term_to_binary({erlang,term}),
ok = ssl:send(S, Msg).
@@ -3720,3 +3834,14 @@ try_recv_active(Socket) ->
try_recv_active_once(Socket) ->
{error, einval} = ssl:recv(Socket, 11),
ok.
+
+first_rsa_suite([{ecdhe_rsa, _, _} = Suite | _]) ->
+ Suite;
+first_rsa_suite([{dhe_rsa, _, _} = Suite| _]) ->
+ Suite;
+first_rsa_suite([{rsa, _, _} = Suite| _]) ->
+ Suite;
+first_rsa_suite([_ | Rest]) ->
+ first_rsa_suite(Rest).
+
+
diff --git a/lib/ssl/test/ssl_test_lib.erl b/lib/ssl/test/ssl_test_lib.erl
index 59f10d53a6..69b222fc43 100644
--- a/lib/ssl/test/ssl_test_lib.erl
+++ b/lib/ssl/test/ssl_test_lib.erl
@@ -67,7 +67,16 @@ run_server(Opts) ->
run_server(ListenSocket, Opts).
run_server(ListenSocket, Opts) ->
- do_run_server(ListenSocket, connect(ListenSocket, Opts), Opts).
+ Accepters = proplists:get_value(accepters, Opts, 1),
+ run_server(ListenSocket, Opts, Accepters).
+
+run_server(ListenSocket, Opts, 1) ->
+ do_run_server(ListenSocket, connect(ListenSocket, Opts), Opts);
+run_server(ListenSocket, Opts, N) ->
+ Pid = proplists:get_value(from, Opts),
+ Server = spawn(?MODULE, run_server, [ListenSocket, Opts, 1]),
+ Pid ! {accepter, N, Server},
+ run_server(ListenSocket, Opts, N-1).
do_run_server(_, {error, timeout} = Result, Opts) ->
Pid = proplists:get_value(from, Opts),
@@ -290,7 +299,16 @@ wait_for_result(Server, ServerMsg, Client, ClientMsg) ->
%% Unexpected
end.
-
+check_ok([]) ->
+ ok;
+check_ok(Pids) ->
+ receive
+ {Pid, ok} ->
+ check_ok(lists:delete(Pid, Pids));
+ Other ->
+ ct:fail({expected, {"pid()", ok}, got, Other})
+ end.
+
wait_for_result(Pid, Msg) ->
receive
{Pid, Msg} ->
@@ -679,6 +697,17 @@ run_client_error(Opts) ->
Error = rpc:call(Node, Transport, connect, [Host, Port, Options]),
Pid ! {self(), Error}.
+accepters(N) ->
+ accepters([], N).
+
+accepters(Acc, 0) ->
+ Acc;
+accepters(Acc, N) ->
+ receive
+ {accepter, _, Server} ->
+ accepters([Server| Acc], N-1)
+ end.
+
inet_port(Pid) when is_pid(Pid)->
receive
{Pid, {port, Port}} ->
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-04 23:23:58 +0000