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-rw-r--r--lib/ssl/src/ssl_connection.erl224
1 files changed, 131 insertions, 93 deletions
diff --git a/lib/ssl/src/ssl_connection.erl b/lib/ssl/src/ssl_connection.erl
index eb71bc61e9..87cf49d07d 100644
--- a/lib/ssl/src/ssl_connection.erl
+++ b/lib/ssl/src/ssl_connection.erl
@@ -40,8 +40,7 @@
-export([send/2, recv/3, connect/7, ssl_accept/6, handshake/2,
socket_control/3, close/1, shutdown/2,
new_user/2, get_opts/2, set_opts/2, info/1, session_info/1,
- peer_certificate/1, sockname/1, peername/1, renegotiation/1,
- prf/5]).
+ peer_certificate/1, renegotiation/1, negotiated_next_protocol/1, prf/5]).
%% Called by ssl_connection_sup
-export([start_link/7]).
@@ -92,7 +91,9 @@
start_or_recv_from, % "gen_fsm From"
send_queue, % queue()
terminated = false, %
- allow_renegotiate = true
+ allow_renegotiate = true,
+ expecting_next_protocol_negotiation = false :: boolean(),
+ next_protocol = undefined :: undefined | binary()
}).
-define(DEFAULT_DIFFIE_HELLMAN_PARAMS,
@@ -179,7 +180,7 @@ handshake(#sslsocket{pid = Pid}, Timeout) ->
socket_control(Socket, Pid, CbModule) ->
case CbModule:controlling_process(Socket, Pid) of
ok ->
- {ok, sslsocket(Pid)};
+ {ok, sslsocket(Pid, Socket)};
{error, Reason} ->
{error, Reason}
end.
@@ -213,20 +214,15 @@ shutdown(ConnectionPid, How) ->
%%--------------------------------------------------------------------
new_user(ConnectionPid, User) ->
sync_send_all_state_event(ConnectionPid, {new_user, User}).
+
%%--------------------------------------------------------------------
--spec sockname(pid()) -> {ok, {inet:ip_address(), inet:port_number()}} | {error, reason()}.
-%%
-%% Description: Same as inet:sockname/1
-%%--------------------------------------------------------------------
-sockname(ConnectionPid) ->
- sync_send_all_state_event(ConnectionPid, sockname).
-%%--------------------------------------------------------------------
--spec peername(pid()) -> {ok, {inet:ip_address(), inet:port_number()}} | {error, reason()}.
+-spec negotiated_next_protocol(pid()) -> {ok, binary()} | {error, reason()}.
%%
-%% Description: Same as inet:peername/1
+%% Description: Returns the negotiated protocol
%%--------------------------------------------------------------------
-peername(ConnectionPid) ->
- sync_send_all_state_event(ConnectionPid, peername).
+negotiated_next_protocol(ConnectionPid) ->
+ sync_send_all_state_event(ConnectionPid, negotiated_next_protocol).
+
%%--------------------------------------------------------------------
-spec get_opts(pid(), list()) -> {ok, list()} | {error, reason()}.
%%
@@ -374,16 +370,29 @@ hello(#server_hello{cipher_suite = CipherSuite,
renegotiation = {Renegotiation, _},
ssl_options = SslOptions} = State0) ->
case ssl_handshake:hello(Hello, SslOptions, ConnectionStates0, Renegotiation) of
- {Version, NewId, ConnectionStates} ->
+ #alert{} = Alert ->
+ handle_own_alert(Alert, ReqVersion, hello, State0),
+ {stop, {shutdown, own_alert}, State0};
+ {Version, NewId, ConnectionStates, NextProtocol} ->
{KeyAlgorithm, _, _, _} =
ssl_cipher:suite_definition(CipherSuite),
-
+
PremasterSecret = make_premaster_secret(ReqVersion, KeyAlgorithm),
+
+ NewNextProtocol = case NextProtocol of
+ undefined ->
+ State0#state.next_protocol;
+ _ ->
+ NextProtocol
+ end,
+
State = State0#state{key_algorithm = KeyAlgorithm,
hashsign_algorithm = default_hashsign(Version, KeyAlgorithm),
negotiated_version = Version,
connection_states = ConnectionStates,
- premaster_secret = PremasterSecret},
+ premaster_secret = PremasterSecret,
+ expecting_next_protocol_negotiation = NextProtocol =/= undefined,
+ next_protocol = NewNextProtocol},
case ssl_session:is_new(OldId, NewId) of
true ->
@@ -391,13 +400,10 @@ hello(#server_hello{cipher_suite = CipherSuite,
State#state{connection_states = ConnectionStates});
false ->
handle_resumed_session(NewId, State#state{connection_states = ConnectionStates})
- end;
- #alert{} = Alert ->
- handle_own_alert(Alert, ReqVersion, hello, State0),
- {stop, {shutdown, own_alert}, State0}
+ end
end;
-hello(Hello = #client_hello{client_version = ClientVersion},
+hello(Hello = #client_hello{client_version = ClientVersion},
State = #state{connection_states = ConnectionStates0,
port = Port, session = #session{own_certificate = Cert} = Session0,
renegotiation = {Renegotiation, _},
@@ -406,8 +412,8 @@ hello(Hello = #client_hello{client_version = ClientVersion},
ssl_options = SslOpts}) ->
case ssl_handshake:hello(Hello, SslOpts, {Port, Session0, Cache, CacheCb,
ConnectionStates0, Cert}, Renegotiation) of
- {Version, {Type, Session}, ConnectionStates} ->
- do_server_hello(Type, State#state{connection_states =
+ {Version, {Type, Session}, ConnectionStates, ProtocolsToAdvertise} ->
+ do_server_hello(Type, ProtocolsToAdvertise, State#state{connection_states =
ConnectionStates,
negotiated_version = Version,
session = Session});
@@ -583,6 +589,7 @@ certify(#client_key_exchange{exchange_keys = Keys},
handle_own_alert(Alert, Version, certify, State)
end;
+
certify(timeout, State) ->
{ next_state, certify, State, hibernate };
@@ -649,6 +656,12 @@ cipher(#certificate_verify{signature = Signature, hashsign_algorithm = CertHashS
handle_own_alert(Alert, Version, cipher, State0)
end;
+% client must send a next protocol message if we are expecting it
+cipher(#finished{}, #state{role = server, expecting_next_protocol_negotiation = true,
+ next_protocol = undefined, negotiated_version = Version} = State0) ->
+ handle_own_alert(?ALERT_REC(?FATAL,?UNEXPECTED_MESSAGE), Version, cipher, State0),
+ {stop, normal, State0};
+
cipher(#finished{verify_data = Data} = Finished,
#state{negotiated_version = Version,
host = Host,
@@ -669,6 +682,13 @@ cipher(#finished{verify_data = Data} = Finished,
handle_own_alert(Alert, Version, cipher, State)
end;
+% only allowed to send next_protocol message after change cipher spec
+% & before finished message and it is not allowed during renegotiation
+cipher(#next_protocol{selected_protocol = SelectedProtocol},
+ #state{role = server, expecting_next_protocol_negotiation = true} = State0) ->
+ {Record, State} = next_record(State0#state{next_protocol = SelectedProtocol}),
+ next_state(cipher, cipher, Record, State);
+
cipher(timeout, State) ->
{ next_state, cipher, State, hibernate };
@@ -828,15 +848,10 @@ handle_sync_event({get_opts, OptTags}, _From, StateName,
OptsReply = get_socket_opts(Socket, OptTags, SockOpts, []),
{reply, OptsReply, StateName, State, get_timeout(State)};
-handle_sync_event(sockname, _From, StateName,
- #state{socket = Socket} = State) ->
- SockNameReply = inet:sockname(Socket),
- {reply, SockNameReply, StateName, State, get_timeout(State)};
-
-handle_sync_event(peername, _From, StateName,
- #state{socket = Socket} = State) ->
- PeerNameReply = inet:peername(Socket),
- {reply, PeerNameReply, StateName, State, get_timeout(State)};
+handle_sync_event(negotiated_next_protocol, _From, StateName, #state{next_protocol = undefined} = State) ->
+ {reply, {error, next_protocol_not_negotiated}, StateName, State, get_timeout(State)};
+handle_sync_event(negotiated_next_protocol, _From, StateName, #state{next_protocol = NextProtocol} = State) ->
+ {reply, {ok, NextProtocol}, StateName, State, get_timeout(State)};
handle_sync_event({set_opts, Opts0}, _From, StateName,
#state{socket_options = Opts1,
@@ -965,7 +980,7 @@ handle_info({CloseTag, Socket}, StateName,
handle_info({ErrorTag, Socket, econnaborted}, StateName,
#state{socket = Socket, start_or_recv_from = StartFrom, role = Role,
error_tag = ErrorTag} = State) when StateName =/= connection ->
- alert_user(StartFrom, ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE), Role),
+ alert_user(Socket, StartFrom, ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE), Role),
{stop, normal, State};
handle_info({ErrorTag, Socket, Reason}, StateName, #state{socket = Socket,
@@ -1279,17 +1294,18 @@ verify_client_cert(#state{client_certificate_requested = true, role = client,
verify_client_cert(#state{client_certificate_requested = false} = State) ->
State.
-do_server_hello(Type, #state{negotiated_version = Version,
- session = #session{session_id = SessId},
- connection_states = ConnectionStates0,
- renegotiation = {Renegotiation, _}}
- = State0) when is_atom(Type) ->
+do_server_hello(Type, NextProtocolsToSend, #state{negotiated_version = Version,
+ session = #session{session_id = SessId},
+ connection_states = ConnectionStates0,
+ renegotiation = {Renegotiation, _}}
+ = State0) when is_atom(Type) ->
ServerHello =
ssl_handshake:server_hello(SessId, Version,
- ConnectionStates0, Renegotiation),
- State = server_hello(ServerHello, State0),
-
+ ConnectionStates0, Renegotiation, NextProtocolsToSend),
+ State = server_hello(ServerHello,
+ State0#state{expecting_next_protocol_negotiation =
+ NextProtocolsToSend =/= undefined}),
case Type of
new ->
new_server_hello(ServerHello, State);
@@ -1539,12 +1555,33 @@ request_client_cert(#state{ssl_options = #ssl_options{verify = verify_none}} =
State.
finalize_handshake(State, StateName) ->
- ConnectionStates0 = cipher_protocol(State),
+ ConnectionStates0 = cipher_protocol(State),
+
ConnectionStates =
ssl_record:activate_pending_connection_state(ConnectionStates0,
write),
- finished(State#state{connection_states = ConnectionStates}, StateName).
-
+
+ State1 = State#state{connection_states = ConnectionStates},
+ State2 = next_protocol(State1),
+ finished(State2, StateName).
+
+next_protocol(#state{role = server} = State) ->
+ State;
+next_protocol(#state{next_protocol = undefined} = State) ->
+ State;
+next_protocol(#state{expecting_next_protocol_negotiation = false} = State) ->
+ State;
+next_protocol(#state{transport_cb = Transport, socket = Socket,
+ negotiated_version = Version,
+ next_protocol = NextProtocol,
+ connection_states = ConnectionStates0,
+ tls_handshake_history = Handshake0} = State) ->
+ NextProtocolMessage = ssl_handshake:next_protocol(NextProtocol),
+ {BinMsg, ConnectionStates, Handshake} = encode_handshake(NextProtocolMessage, Version, ConnectionStates0, Handshake0),
+ Transport:send(Socket, BinMsg),
+ State#state{connection_states = ConnectionStates,
+ tls_handshake_history = Handshake}.
+
cipher_protocol(#state{connection_states = ConnectionStates0,
socket = Socket,
negotiated_version = Version,
@@ -1729,10 +1766,11 @@ passive_receive(State0 = #state{user_data_buffer = Buffer}, StateName) ->
end.
read_application_data(Data, #state{user_application = {_Mon, Pid},
- socket_options = SOpts,
- bytes_to_read = BytesToRead,
- start_or_recv_from = RecvFrom,
- user_data_buffer = Buffer0} = State0) ->
+ socket = Socket,
+ socket_options = SOpts,
+ bytes_to_read = BytesToRead,
+ start_or_recv_from = RecvFrom,
+ user_data_buffer = Buffer0} = State0) ->
Buffer1 = if
Buffer0 =:= <<>> -> Data;
Data =:= <<>> -> Buffer0;
@@ -1740,7 +1778,7 @@ read_application_data(Data, #state{user_application = {_Mon, Pid},
end,
case get_data(SOpts, BytesToRead, Buffer1) of
{ok, ClientData, Buffer} -> % Send data
- SocketOpt = deliver_app_data(SOpts, ClientData, Pid, RecvFrom),
+ SocketOpt = deliver_app_data(Socket, SOpts, ClientData, Pid, RecvFrom),
State = State0#state{user_data_buffer = Buffer,
start_or_recv_from = undefined,
bytes_to_read = 0,
@@ -1757,7 +1795,7 @@ read_application_data(Data, #state{user_application = {_Mon, Pid},
{more, Buffer} -> % no reply, we need more data
next_record(State0#state{user_data_buffer = Buffer});
{error,_Reason} -> %% Invalid packet in packet mode
- deliver_packet_error(SOpts, Buffer1, Pid, RecvFrom),
+ deliver_packet_error(Socket, SOpts, Buffer1, Pid, RecvFrom),
{stop, normal, State0}
end.
@@ -1836,9 +1874,9 @@ decode_packet(Type, Buffer, PacketOpts) ->
%% Note that if the user has explicitly configured the socket to expect
%% HTTP headers using the {packet, httph} option, we don't do any automatic
%% switching of states.
-deliver_app_data(SOpts = #socket_options{active=Active, packet=Type},
- Data, Pid, From) ->
- send_or_reply(Active, Pid, From, format_reply(SOpts, Data)),
+deliver_app_data(Socket, SOpts = #socket_options{active=Active, packet=Type},
+ Data, Pid, From) ->
+ send_or_reply(Active, Pid, From, format_reply(Socket, SOpts, Data)),
SO = case Data of
{P, _, _, _} when ((P =:= http_request) or (P =:= http_response)),
((Type =:= http) or (Type =:= http_bin)) ->
@@ -1857,31 +1895,31 @@ deliver_app_data(SOpts = #socket_options{active=Active, packet=Type},
SO
end.
-format_reply(#socket_options{active = false, mode = Mode, packet = Packet,
+format_reply(_,#socket_options{active = false, mode = Mode, packet = Packet,
header = Header}, Data) ->
- {ok, format_reply(Mode, Packet, Header, Data)};
-format_reply(#socket_options{active = _, mode = Mode, packet = Packet,
+ {ok, do_format_reply(Mode, Packet, Header, Data)};
+format_reply(Socket, #socket_options{active = _, mode = Mode, packet = Packet,
header = Header}, Data) ->
- {ssl, sslsocket(), format_reply(Mode, Packet, Header, Data)}.
+ {ssl, sslsocket(self(), Socket), do_format_reply(Mode, Packet, Header, Data)}.
-deliver_packet_error(SO= #socket_options{active = Active}, Data, Pid, From) ->
- send_or_reply(Active, Pid, From, format_packet_error(SO, Data)).
+deliver_packet_error(Socket, SO= #socket_options{active = Active}, Data, Pid, From) ->
+ send_or_reply(Active, Pid, From, format_packet_error(Socket, SO, Data)).
-format_packet_error(#socket_options{active = false, mode = Mode}, Data) ->
- {error, {invalid_packet, format_reply(Mode, raw, 0, Data)}};
-format_packet_error(#socket_options{active = _, mode = Mode}, Data) ->
- {ssl_error, sslsocket(), {invalid_packet, format_reply(Mode, raw, 0, Data)}}.
+format_packet_error(_,#socket_options{active = false, mode = Mode}, Data) ->
+ {error, {invalid_packet, do_format_reply(Mode, raw, 0, Data)}};
+format_packet_error(Socket, #socket_options{active = _, mode = Mode}, Data) ->
+ {ssl_error, sslsocket(self(), Socket), {invalid_packet, do_format_reply(Mode, raw, 0, Data)}}.
-format_reply(binary, _, N, Data) when N > 0 -> % Header mode
+do_format_reply(binary, _, N, Data) when N > 0 -> % Header mode
header(N, Data);
-format_reply(binary, _, _, Data) ->
+do_format_reply(binary, _, _, Data) ->
Data;
-format_reply(list, Packet, _, Data)
+do_format_reply(list, Packet, _, Data)
when Packet == http; Packet == {http, headers};
Packet == http_bin; Packet == {http_bin, headers};
Packet == httph; Packet == httph_bin ->
Data;
-format_reply(list, _,_, Data) ->
+do_format_reply(list, _,_, Data) ->
binary_to_list(Data).
header(0, <<>>) ->
@@ -2052,8 +2090,8 @@ next_state_is_connection(_, State =
next_state_is_connection(StateName, State0) ->
{Record, State} = next_record_if_active(State0),
next_state(StateName, connection, Record, State#state{premaster_secret = undefined,
- public_key_info = undefined,
- tls_handshake_history = ssl_handshake:init_handshake_history()}).
+ public_key_info = undefined,
+ tls_handshake_history = ssl_handshake:init_handshake_history()}).
register_session(client, Host, Port, #session{is_resumable = new} = Session0) ->
Session = Session0#session{is_resumable = true},
@@ -2111,11 +2149,8 @@ initial_state(Role, Host, Port, Socket, {SSLOptions, SocketOptions}, User,
send_queue = queue:new()
}.
-sslsocket(Pid) ->
- #sslsocket{pid = Pid, fd = new_ssl}.
-
-sslsocket() ->
- sslsocket(self()).
+sslsocket(Pid, Socket) ->
+ #sslsocket{pid = Pid, fd = Socket}.
get_socket_opts(_,[], _, Acc) ->
{ok, Acc};
@@ -2211,12 +2246,12 @@ handle_alerts([Alert | Alerts], {next_state, StateName, State, _Timeout}) ->
handle_alerts(Alerts, handle_alert(Alert, StateName, State)).
handle_alert(#alert{level = ?FATAL} = Alert, StateName,
- #state{start_or_recv_from = From, host = Host, port = Port, session = Session,
- user_application = {_Mon, Pid},
+ #state{socket = Socket, start_or_recv_from = From, host = Host,
+ port = Port, session = Session, user_application = {_Mon, Pid},
log_alert = Log, role = Role, socket_options = Opts} = State) ->
invalidate_session(Role, Host, Port, Session),
log_alert(Log, StateName, Alert),
- alert_user(StateName, Opts, Pid, From, Alert, Role),
+ alert_user(Socket, StateName, Opts, Pid, From, Alert, Role),
{stop, normal, State};
handle_alert(#alert{level = ?WARNING, description = ?CLOSE_NOTIFY} = Alert,
@@ -2243,28 +2278,28 @@ handle_alert(#alert{level = ?WARNING, description = ?USER_CANCELED} = Alert, Sta
{Record, State} = next_record(State0),
next_state(StateName, StateName, Record, State).
-alert_user(connection, Opts, Pid, From, Alert, Role) ->
- alert_user(Opts#socket_options.active, Pid, From, Alert, Role);
-alert_user(_, _, _, From, Alert, Role) ->
- alert_user(From, Alert, Role).
+alert_user(Socket, connection, Opts, Pid, From, Alert, Role) ->
+ alert_user(Socket, Opts#socket_options.active, Pid, From, Alert, Role);
+alert_user(Socket,_, _, _, From, Alert, Role) ->
+ alert_user(Socket, From, Alert, Role).
-alert_user(From, Alert, Role) ->
- alert_user(false, no_pid, From, Alert, Role).
+alert_user(Socket, From, Alert, Role) ->
+ alert_user(Socket, false, no_pid, From, Alert, Role).
-alert_user(false = Active, Pid, From, Alert, Role) ->
+alert_user(_Socket, false = Active, Pid, From, Alert, Role) ->
%% If there is an outstanding ssl_accept | recv
%% From will be defined and send_or_reply will
%% send the appropriate error message.
ReasonCode = ssl_alert:reason_code(Alert, Role),
send_or_reply(Active, Pid, From, {error, ReasonCode});
-alert_user(Active, Pid, From, Alert, Role) ->
+alert_user(Socket, Active, Pid, From, Alert, Role) ->
case ssl_alert:reason_code(Alert, Role) of
closed ->
send_or_reply(Active, Pid, From,
- {ssl_closed, sslsocket()});
+ {ssl_closed, sslsocket(self(), Socket)});
ReasonCode ->
send_or_reply(Active, Pid, From,
- {ssl_error, sslsocket(), ReasonCode})
+ {ssl_error, sslsocket(self(), Socket), ReasonCode})
end.
log_alert(true, Info, Alert) ->
@@ -2294,13 +2329,16 @@ handle_own_alert(Alert, Version, StateName,
end,
{stop, {shutdown, own_alert}, State}.
-handle_normal_shutdown(Alert, _, #state{start_or_recv_from = StartFrom, role = Role, renegotiation = {false, first}}) ->
- alert_user(StartFrom, Alert, Role);
+handle_normal_shutdown(Alert, _, #state{socket = Socket,
+ start_or_recv_from = StartFrom,
+ role = Role, renegotiation = {false, first}}) ->
+ alert_user(Socket, StartFrom, Alert, Role);
-handle_normal_shutdown(Alert, StateName, #state{socket_options = Opts,
+handle_normal_shutdown(Alert, StateName, #state{socket = Socket,
+ socket_options = Opts,
user_application = {_Mon, Pid},
start_or_recv_from = RecvFrom, role = Role}) ->
- alert_user(StateName, Opts, Pid, RecvFrom, Alert, Role).
+ alert_user(Socket, StateName, Opts, Pid, RecvFrom, Alert, Role).
handle_unexpected_message(Msg, Info, #state{negotiated_version = Version} = State) ->
Alert = ?ALERT_REC(?FATAL,?UNEXPECTED_MESSAGE),