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authorIngela Anderton Andin <[email protected]>2018-06-15 22:32:59 +0200
committerIngela Anderton Andin <[email protected]>2018-08-27 15:20:58 +0200
commitd87ac1c55188f5ba5cdf72384125d94d42118c18 (patch)
tree91e4e59a5b9948d7d9f7cdeb490d701551ba2246 /lib/ssl/src
parente24da191701ebd6aa619f9867c9713f696dc95c8 (diff)
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ssl: Add new sender process for TLS state machine
Separate sending and receiving when using TCP as transport as prim_inet:send may block which in turn may result in a deadlock between two Erlang processes communicating over TLS, this is especially likely to happen when running Erlang distribution over TLS.
Diffstat (limited to 'lib/ssl/src')
-rw-r--r--lib/ssl/src/Makefile1
-rw-r--r--lib/ssl/src/dtls_connection.erl67
-rw-r--r--lib/ssl/src/dtls_socket.erl10
-rw-r--r--lib/ssl/src/ssl.app.src1
-rw-r--r--lib/ssl/src/ssl.erl52
-rw-r--r--lib/ssl/src/ssl_connection.erl277
-rw-r--r--lib/ssl/src/ssl_connection.hrl1
-rw-r--r--lib/ssl/src/tls_connection.erl159
-rw-r--r--lib/ssl/src/tls_sender.erl281
-rw-r--r--lib/ssl/src/tls_socket.erl9
10 files changed, 603 insertions, 255 deletions
diff --git a/lib/ssl/src/Makefile b/lib/ssl/src/Makefile
index c0c55c6eb7..8d1341f594 100644
--- a/lib/ssl/src/Makefile
+++ b/lib/ssl/src/Makefile
@@ -66,6 +66,7 @@ MODULES= \
ssl_srp_primes \
tls_connection \
dtls_connection \
+ tls_sender\
ssl_config \
ssl_connection \
tls_handshake \
diff --git a/lib/ssl/src/dtls_connection.erl b/lib/ssl/src/dtls_connection.erl
index bf3ff3a9a7..2a0b2b317d 100644
--- a/lib/ssl/src/dtls_connection.erl
+++ b/lib/ssl/src/dtls_connection.erl
@@ -36,7 +36,7 @@
%% Internal application API
%% Setup
--export([start_fsm/8, start_link/7, init/1]).
+-export([start_fsm/8, start_link/7, init/1, pids/1]).
%% State transition handling
-export([next_record/1, next_event/3, next_event/4, handle_common_event/4]).
@@ -44,10 +44,10 @@
%% Handshake handling
-export([renegotiate/2, send_handshake/2,
queue_handshake/2, queue_change_cipher/2,
- reinit_handshake_data/1, select_sni_extension/1, empty_connection_state/2]).
+ reinit/1, reinit_handshake_data/1, select_sni_extension/1, empty_connection_state/2]).
%% Alert and close handling
--export([encode_alert/3,send_alert/2, close/5, protocol_name/0]).
+-export([encode_alert/3, send_alert/2, send_alert_in_connection/2, close/5, protocol_name/0]).
%% Data handling
-export([encode_data/3, passive_receive/2, next_record_if_active/1,
@@ -72,7 +72,7 @@ start_fsm(Role, Host, Port, Socket, {#ssl_options{erl_dist = false},_, Tracker}
try
{ok, Pid} = dtls_connection_sup:start_child([Role, Host, Port, Socket,
Opts, User, CbInfo]),
- {ok, SslSocket} = ssl_connection:socket_control(?MODULE, Socket, Pid, CbModule, Tracker),
+ {ok, SslSocket} = ssl_connection:socket_control(?MODULE, Socket, [Pid], CbModule, Tracker),
ssl_connection:handshake(SslSocket, Timeout)
catch
error:{badmatch, {error, _} = Error} ->
@@ -100,6 +100,10 @@ init([Role, Host, Port, Socket, Options, User, CbInfo]) ->
EState = State0#state{protocol_specific = Map#{error => Error}},
gen_statem:enter_loop(?MODULE, [], error, EState)
end.
+
+pids(_) ->
+ [self()].
+
%%====================================================================
%% State transition handling
%%====================================================================
@@ -328,10 +332,14 @@ queue_change_cipher(ChangeCipher, #state{flight_buffer = Flight,
dtls_record:next_epoch(ConnectionStates0, write),
State#state{flight_buffer = Flight#{change_cipher_spec => ChangeCipher},
connection_states = ConnectionStates}.
+
+reinit(State) ->
+ %% To be API compatible with TLS NOOP here
+ reinit_handshake_data(State).
reinit_handshake_data(#state{protocol_buffers = Buffers} = State) ->
State#state{premaster_secret = undefined,
public_key_info = undefined,
- tls_handshake_history = ssl_handshake:init_handshake_history(),
+ tls_handshake_history = ssl_handshake:init_handshake_history(),
flight_state = {retransmit, ?INITIAL_RETRANSMIT_TIMEOUT},
flight_buffer = new_flight(),
protocol_buffers =
@@ -365,6 +373,10 @@ send_alert(Alert, #state{negotiated_version = Version,
send(Transport, Socket, BinMsg),
State0#state{connection_states = ConnectionStates}.
+send_alert_in_connection(Alert, State) ->
+ _ = send_alert(Alert, State),
+ ok.
+
close(downgrade, _,_,_,_) ->
ok;
%% Other
@@ -710,6 +722,12 @@ connection(internal, #client_hello{}, #state{role = server, allow_renegotiate =
State1 = send_alert(Alert, State0),
{Record, State} = ssl_connection:prepare_connection(State1, ?MODULE),
next_event(?FUNCTION_NAME, Record, State);
+connection({call, From}, {application_data, Data}, State) ->
+ try
+ send_application_data(Data, From, ?FUNCTION_NAME, State)
+ catch throw:Error ->
+ ssl_connection:hibernate_after(?FUNCTION_NAME, State, [{reply, From, Error}])
+ end;
connection(Type, Event, State) ->
ssl_connection:?FUNCTION_NAME(Type, Event, State, ?MODULE).
@@ -1131,3 +1149,42 @@ log_ignore_alert(true, StateName, Alert, Role) ->
[Role, StateName, Txt]);
log_ignore_alert(false, _, _,_) ->
ok.
+
+send_application_data(Data, From, _StateName,
+ #state{socket = Socket,
+ negotiated_version = Version,
+ protocol_cb = Connection,
+ transport_cb = Transport,
+ connection_states = ConnectionStates0,
+ ssl_options = #ssl_options{renegotiate_at = RenegotiateAt}} = State0) ->
+
+ case time_to_renegotiate(Data, ConnectionStates0, RenegotiateAt) of
+ true ->
+ renegotiate(State0#state{renegotiation = {true, internal}},
+ [{next_event, {call, From}, {application_data, Data}}]);
+ false ->
+ {Msgs, ConnectionStates} =
+ Connection:encode_data(Data, Version, ConnectionStates0),
+ State = State0#state{connection_states = ConnectionStates},
+ case Connection:send(Transport, Socket, Msgs) of
+ ok ->
+ ssl_connection:hibernate_after(connection, State, [{reply, From, ok}]);
+ Result ->
+ ssl_connection:hibernate_after(connection, State, [{reply, From, Result}])
+ end
+ end.
+
+time_to_renegotiate(_Data,
+ #{current_write := #{sequence_number := Num}},
+ RenegotiateAt) ->
+
+ %% We could do test:
+ %% is_time_to_renegotiate((erlang:byte_size(_Data) div
+ %% ?MAX_PLAIN_TEXT_LENGTH) + 1, RenegotiateAt), but we chose to
+ %% have a some what lower renegotiateAt and a much cheaper test
+ is_time_to_renegotiate(Num, RenegotiateAt).
+
+is_time_to_renegotiate(N, M) when N < M->
+ false;
+is_time_to_renegotiate(_,_) ->
+ true.
diff --git a/lib/ssl/src/dtls_socket.erl b/lib/ssl/src/dtls_socket.erl
index b26d3ae41a..2001afd02f 100644
--- a/lib/ssl/src/dtls_socket.erl
+++ b/lib/ssl/src/dtls_socket.erl
@@ -48,7 +48,7 @@ accept(dtls, #config{transport_info = {Transport,_,_,_},
dtls_handler = {Listner, _}}, _Timeout) ->
case dtls_packet_demux:accept(Listner, self()) of
{ok, Pid, Socket} ->
- {ok, socket(Pid, Transport, {Listner, Socket}, ConnectionCb)};
+ {ok, socket([Pid], Transport, {Listner, Socket}, ConnectionCb)};
{error, Reason} ->
{error, Reason}
end.
@@ -73,12 +73,12 @@ close(gen_udp, {_Client, _Socket}) ->
close(Transport, {_Client, Socket}) ->
Transport:close(Socket).
-socket(Pid, gen_udp = Transport, {{_, _}, Socket}, ConnectionCb) ->
- #sslsocket{pid = Pid,
+socket(Pids, gen_udp = Transport, {{_, _}, Socket}, ConnectionCb) ->
+ #sslsocket{pid = Pids,
%% "The name "fd" is keept for backwards compatibility
fd = {Transport, Socket, ConnectionCb}};
-socket(Pid, Transport, Socket, ConnectionCb) ->
- #sslsocket{pid = Pid,
+socket(Pids, Transport, Socket, ConnectionCb) ->
+ #sslsocket{pid = Pids,
%% "The name "fd" is keept for backwards compatibility
fd = {Transport, Socket, ConnectionCb}}.
setopts(_, #sslsocket{pid = {dtls, #config{dtls_handler = {ListenPid, _}}}}, Options) ->
diff --git a/lib/ssl/src/ssl.app.src b/lib/ssl/src/ssl.app.src
index 41871260fa..936df12e70 100644
--- a/lib/ssl/src/ssl.app.src
+++ b/lib/ssl/src/ssl.app.src
@@ -10,6 +10,7 @@
tls_v1,
ssl_v3,
tls_connection_sup,
+ tls_sender,
%% DTLS
dtls_connection,
dtls_handshake,
diff --git a/lib/ssl/src/ssl.erl b/lib/ssl/src/ssl.erl
index 71d1a28f98..4cf56035ba 100644
--- a/lib/ssl/src/ssl.erl
+++ b/lib/ssl/src/ssl.erl
@@ -231,7 +231,7 @@ handshake(#sslsocket{fd = {_, _, _, Tracker}} = Socket, SslOpts, Timeout) when
catch
Error = {error, _Reason} -> Error
end;
-handshake(#sslsocket{pid = Pid, fd = {_, _, _}} = Socket, SslOpts, Timeout) when
+handshake(#sslsocket{pid = [Pid|_], fd = {_, _, _}} = Socket, SslOpts, Timeout) when
(is_integer(Timeout) andalso Timeout >= 0) or (Timeout == infinity)->
try
{ok, EmOpts, _} = dtls_packet_demux:get_all_opts(Pid),
@@ -291,7 +291,7 @@ handshake_cancel(Socket) ->
%%
%% Description: Close an ssl connection
%%--------------------------------------------------------------------
-close(#sslsocket{pid = Pid}) when is_pid(Pid) ->
+close(#sslsocket{pid = [Pid|_]}) when is_pid(Pid) ->
ssl_connection:close(Pid, {close, ?DEFAULT_TIMEOUT});
close(#sslsocket{pid = {dtls, #config{dtls_handler = {Pid, _}}}}) ->
dtls_packet_demux:close(Pid);
@@ -303,12 +303,12 @@ close(#sslsocket{pid = {ListenSocket, #config{transport_info={Transport,_, _, _}
%%
%% Description: Close an ssl connection
%%--------------------------------------------------------------------
-close(#sslsocket{pid = TLSPid},
+close(#sslsocket{pid = [TLSPid|_]},
{Pid, Timeout} = DownGrade) when is_pid(TLSPid),
is_pid(Pid),
(is_integer(Timeout) andalso Timeout >= 0) or (Timeout == infinity) ->
ssl_connection:close(TLSPid, {close, DownGrade});
-close(#sslsocket{pid = TLSPid}, Timeout) when is_pid(TLSPid),
+close(#sslsocket{pid = [TLSPid|_]}, Timeout) when is_pid(TLSPid),
(is_integer(Timeout) andalso Timeout >= 0) or (Timeout == infinity) ->
ssl_connection:close(TLSPid, {close, Timeout});
close(#sslsocket{pid = {ListenSocket, #config{transport_info={Transport,_, _, _}}}}, _) ->
@@ -319,8 +319,10 @@ close(#sslsocket{pid = {ListenSocket, #config{transport_info={Transport,_, _, _}
%%
%% Description: Sends data over the ssl connection
%%--------------------------------------------------------------------
-send(#sslsocket{pid = Pid}, Data) when is_pid(Pid) ->
+send(#sslsocket{pid = [Pid]}, Data) when is_pid(Pid) ->
ssl_connection:send(Pid, Data);
+send(#sslsocket{pid = [_, Pid]}, Data) when is_pid(Pid) ->
+ tls_sender:send_data(Pid, erlang:iolist_to_binary(Data));
send(#sslsocket{pid = {_, #config{transport_info={_, udp, _, _}}}}, _) ->
{error,enotconn}; %% Emulate connection behaviour
send(#sslsocket{pid = {dtls,_}}, _) ->
@@ -336,7 +338,7 @@ send(#sslsocket{pid = {ListenSocket, #config{transport_info={Transport, _, _, _}
%%--------------------------------------------------------------------
recv(Socket, Length) ->
recv(Socket, Length, infinity).
-recv(#sslsocket{pid = Pid}, Length, Timeout) when is_pid(Pid),
+recv(#sslsocket{pid = [Pid|_]}, Length, Timeout) when is_pid(Pid),
(is_integer(Timeout) andalso Timeout >= 0) or (Timeout == infinity)->
ssl_connection:recv(Pid, Length, Timeout);
recv(#sslsocket{pid = {dtls,_}}, _, _) ->
@@ -351,7 +353,7 @@ recv(#sslsocket{pid = {Listen,
%% Description: Changes process that receives the messages when active = true
%% or once.
%%--------------------------------------------------------------------
-controlling_process(#sslsocket{pid = Pid}, NewOwner) when is_pid(Pid), is_pid(NewOwner) ->
+controlling_process(#sslsocket{pid = [Pid|_]}, NewOwner) when is_pid(Pid), is_pid(NewOwner) ->
ssl_connection:new_user(Pid, NewOwner);
controlling_process(#sslsocket{pid = {dtls, _}},
NewOwner) when is_pid(NewOwner) ->
@@ -369,7 +371,7 @@ controlling_process(#sslsocket{pid = {Listen,
%%
%% Description: Return SSL information for the connection
%%--------------------------------------------------------------------
-connection_information(#sslsocket{pid = Pid}) when is_pid(Pid) ->
+connection_information(#sslsocket{pid = [Pid|_]}) when is_pid(Pid) ->
case ssl_connection:connection_information(Pid, false) of
{ok, Info} ->
{ok, [Item || Item = {_Key, Value} <- Info, Value =/= undefined]};
@@ -386,7 +388,7 @@ connection_information(#sslsocket{pid = {dtls,_}}) ->
%%
%% Description: Return SSL information for the connection
%%--------------------------------------------------------------------
-connection_information(#sslsocket{pid = Pid}, Items) when is_pid(Pid) ->
+connection_information(#sslsocket{pid = [Pid|_]}, Items) when is_pid(Pid) ->
case ssl_connection:connection_information(Pid, include_security_info(Items)) of
{ok, Info} ->
{ok, [Item || Item = {Key, Value} <- Info, lists:member(Key, Items),
@@ -400,9 +402,9 @@ connection_information(#sslsocket{pid = Pid}, Items) when is_pid(Pid) ->
%%
%% Description: same as inet:peername/1.
%%--------------------------------------------------------------------
-peername(#sslsocket{pid = Pid, fd = {Transport, Socket, _}}) when is_pid(Pid)->
+peername(#sslsocket{pid = [Pid|_], fd = {Transport, Socket, _}}) when is_pid(Pid)->
dtls_socket:peername(Transport, Socket);
-peername(#sslsocket{pid = Pid, fd = {Transport, Socket, _, _}}) when is_pid(Pid)->
+peername(#sslsocket{pid = [Pid|_], fd = {Transport, Socket, _, _}}) when is_pid(Pid)->
tls_socket:peername(Transport, Socket);
peername(#sslsocket{pid = {dtls, #config{dtls_handler = {_Pid, _}}}}) ->
dtls_socket:peername(dtls, undefined);
@@ -416,7 +418,7 @@ peername(#sslsocket{pid = {dtls,_}}) ->
%%
%% Description: Returns the peercert.
%%--------------------------------------------------------------------
-peercert(#sslsocket{pid = Pid}) when is_pid(Pid) ->
+peercert(#sslsocket{pid = [Pid|_]}) when is_pid(Pid) ->
case ssl_connection:peer_certificate(Pid) of
{ok, undefined} ->
{error, no_peercert};
@@ -434,7 +436,7 @@ peercert(#sslsocket{pid = {Listen, _}}) when is_port(Listen) ->
%% Description: Returns the protocol that has been negotiated. If no
%% protocol has been negotiated will return {error, protocol_not_negotiated}
%%--------------------------------------------------------------------
-negotiated_protocol(#sslsocket{pid = Pid}) ->
+negotiated_protocol(#sslsocket{pid = [Pid|_]}) when is_pid(Pid) ->
ssl_connection:negotiated_protocol(Pid).
%%--------------------------------------------------------------------
@@ -571,7 +573,7 @@ eccs_filter_supported(Curves) ->
%%
%% Description: Gets options
%%--------------------------------------------------------------------
-getopts(#sslsocket{pid = Pid}, OptionTags) when is_pid(Pid), is_list(OptionTags) ->
+getopts(#sslsocket{pid = [Pid|_]}, OptionTags) when is_pid(Pid), is_list(OptionTags) ->
ssl_connection:get_opts(Pid, OptionTags);
getopts(#sslsocket{pid = {dtls, #config{transport_info = {Transport,_,_,_}}}} = ListenSocket, OptionTags) when is_list(OptionTags) ->
try dtls_socket:getopts(Transport, ListenSocket, OptionTags) of
@@ -602,7 +604,7 @@ getopts(#sslsocket{}, OptionTags) ->
%%
%% Description: Sets options
%%--------------------------------------------------------------------
-setopts(#sslsocket{pid = Pid}, Options0) when is_pid(Pid), is_list(Options0) ->
+setopts(#sslsocket{pid = [Pid|_]}, Options0) when is_pid(Pid), is_list(Options0) ->
try proplists:expand([{binary, [{mode, binary}]},
{list, [{mode, list}]}], Options0) of
Options ->
@@ -657,7 +659,7 @@ getstat(Socket) ->
getstat(#sslsocket{pid = {Listen, #config{transport_info = {Transport, _, _, _}}}}, Options) when is_port(Listen), is_list(Options) ->
tls_socket:getstat(Transport, Listen, Options);
-getstat(#sslsocket{pid = Pid, fd = {Transport, Socket, _, _}}, Options) when is_pid(Pid), is_list(Options) ->
+getstat(#sslsocket{pid = [Pid|_], fd = {Transport, Socket, _, _}}, Options) when is_pid(Pid), is_list(Options) ->
tls_socket:getstat(Transport, Socket, Options).
%%---------------------------------------------------------------
@@ -670,7 +672,7 @@ shutdown(#sslsocket{pid = {Listen, #config{transport_info = {Transport,_, _, _}}
Transport:shutdown(Listen, How);
shutdown(#sslsocket{pid = {dtls,_}},_) ->
{error, enotconn};
-shutdown(#sslsocket{pid = Pid}, How) ->
+shutdown(#sslsocket{pid = [Pid|_]}, How) when is_pid(Pid) ->
ssl_connection:shutdown(Pid, How).
%%--------------------------------------------------------------------
@@ -682,9 +684,9 @@ sockname(#sslsocket{pid = {Listen, #config{transport_info = {Transport, _, _, _
tls_socket:sockname(Transport, Listen);
sockname(#sslsocket{pid = {dtls, #config{dtls_handler = {Pid, _}}}}) ->
dtls_packet_demux:sockname(Pid);
-sockname(#sslsocket{pid = Pid, fd = {Transport, Socket, _}}) when is_pid(Pid) ->
+sockname(#sslsocket{pid = [Pid|_], fd = {Transport, Socket, _}}) when is_pid(Pid) ->
dtls_socket:sockname(Transport, Socket);
-sockname(#sslsocket{pid = Pid, fd = {Transport, Socket, _, _}}) when is_pid(Pid) ->
+sockname(#sslsocket{pid = [Pid| _], fd = {Transport, Socket, _, _}}) when is_pid(Pid) ->
tls_socket:sockname(Transport, Socket).
%%---------------------------------------------------------------
@@ -713,7 +715,15 @@ versions() ->
%%
%% Description: Initiates a renegotiation.
%%--------------------------------------------------------------------
-renegotiate(#sslsocket{pid = Pid}) when is_pid(Pid) ->
+renegotiate(#sslsocket{pid = [Pid, Sender |_]}) when is_pid(Pid),
+ is_pid(Sender) ->
+ case tls_sender:renegotiate(Sender) of
+ {ok, Write} ->
+ tls_connection:renegotiation(Pid, Write);
+ Error ->
+ Error
+ end;
+renegotiate(#sslsocket{pid = [Pid |_]}) when is_pid(Pid) ->
ssl_connection:renegotiation(Pid);
renegotiate(#sslsocket{pid = {dtls,_}}) ->
{error, enotconn};
@@ -727,7 +737,7 @@ renegotiate(#sslsocket{pid = {Listen,_}}) when is_port(Listen) ->
%%
%% Description: use a ssl sessions TLS PRF to generate key material
%%--------------------------------------------------------------------
-prf(#sslsocket{pid = Pid},
+prf(#sslsocket{pid = [Pid|_]},
Secret, Label, Seed, WantedLength) when is_pid(Pid) ->
ssl_connection:prf(Pid, Secret, Label, Seed, WantedLength);
prf(#sslsocket{pid = {dtls,_}}, _,_,_,_) ->
diff --git a/lib/ssl/src/ssl_connection.erl b/lib/ssl/src/ssl_connection.erl
index 7649ed2899..d83cc7225f 100644
--- a/lib/ssl/src/ssl_connection.erl
+++ b/lib/ssl/src/ssl_connection.erl
@@ -55,7 +55,7 @@
]).
%% Data handling
--export([write_application_data/3, read_application_data/2]).
+-export([read_application_data/2, internal_renegotiation/2]).
%% Help functions for tls|dtls_connection.erl
-export([handle_session/7, ssl_config/3,
@@ -118,7 +118,7 @@ handshake(Connection, Port, Socket, Opts, User, CbInfo, Timeout) ->
%%
%% Description: Starts ssl handshake.
%%--------------------------------------------------------------------
-handshake(#sslsocket{pid = Pid} = Socket, Timeout) ->
+handshake(#sslsocket{pid = [Pid|_]} = Socket, Timeout) ->
case call(Pid, {start, Timeout}) of
connected ->
{ok, Socket};
@@ -134,7 +134,7 @@ handshake(#sslsocket{pid = Pid} = Socket, Timeout) ->
%%
%% Description: Starts ssl handshake with some new options
%%--------------------------------------------------------------------
-handshake(#sslsocket{pid = Pid} = Socket, SslOptions, Timeout) ->
+handshake(#sslsocket{pid = [Pid|_]} = Socket, SslOptions, Timeout) ->
case call(Pid, {start, SslOptions, Timeout}) of
connected ->
{ok, Socket};
@@ -148,7 +148,7 @@ handshake(#sslsocket{pid = Pid} = Socket, SslOptions, Timeout) ->
%%
%% Description: Continues handshake with new options
%%--------------------------------------------------------------------
-handshake_continue(#sslsocket{pid = Pid} = Socket, SslOptions, Timeout) ->
+handshake_continue(#sslsocket{pid = [Pid|_]} = Socket, SslOptions, Timeout) ->
case call(Pid, {handshake_continue, SslOptions, Timeout}) of
connected ->
{ok, Socket};
@@ -160,7 +160,7 @@ handshake_continue(#sslsocket{pid = Pid} = Socket, SslOptions, Timeout) ->
%%
%% Description: Cancels connection
%%--------------------------------------------------------------------
-handshake_cancel(#sslsocket{pid = Pid}) ->
+handshake_cancel(#sslsocket{pid = [Pid|_]}) ->
case call(Pid, cancel) of
closed ->
ok;
@@ -168,7 +168,7 @@ handshake_cancel(#sslsocket{pid = Pid}) ->
Error
end.
%--------------------------------------------------------------------
--spec socket_control(tls_connection | dtls_connection, port(), pid(), atom()) ->
+-spec socket_control(tls_connection | dtls_connection, port(), [pid()], atom()) ->
{ok, #sslsocket{}} | {error, reason()}.
%%
%% Description: Set the ssl process to own the accept socket
@@ -177,24 +177,24 @@ socket_control(Connection, Socket, Pid, Transport) ->
socket_control(Connection, Socket, Pid, Transport, undefined).
%--------------------------------------------------------------------
--spec socket_control(tls_connection | dtls_connection, port(), pid(), atom(), pid()| undefined) ->
+-spec socket_control(tls_connection | dtls_connection, port(), [pid()], atom(), pid()| atom()) ->
{ok, #sslsocket{}} | {error, reason()}.
%%--------------------------------------------------------------------
-socket_control(Connection, Socket, Pid, Transport, udp_listener) ->
+socket_control(Connection, Socket, Pids, Transport, udp_listener) ->
%% dtls listener process must have the socket control
- {ok, Connection:socket(Pid, Transport, Socket, Connection, undefined)};
+ {ok, Connection:socket(Pids, Transport, Socket, Connection, undefined)};
-socket_control(tls_connection = Connection, Socket, Pid, Transport, ListenTracker) ->
+socket_control(tls_connection = Connection, Socket, [Pid|_] = Pids, Transport, ListenTracker) ->
case Transport:controlling_process(Socket, Pid) of
ok ->
- {ok, Connection:socket(Pid, Transport, Socket, Connection, ListenTracker)};
+ {ok, Connection:socket(Pids, Transport, Socket, Connection, ListenTracker)};
{error, Reason} ->
{error, Reason}
end;
-socket_control(dtls_connection = Connection, {_, Socket}, Pid, Transport, ListenTracker) ->
+socket_control(dtls_connection = Connection, {_, Socket}, [Pid|_] = Pids, Transport, ListenTracker) ->
case Transport:controlling_process(Socket, Pid) of
ok ->
- {ok, Connection:socket(Pid, Transport, Socket, Connection, ListenTracker)};
+ {ok, Connection:socket(Pids, Transport, Socket, Connection, ListenTracker)};
{error, Reason} ->
{error, Reason}
end.
@@ -306,6 +306,14 @@ peer_certificate(ConnectionPid) ->
renegotiation(ConnectionPid) ->
call(ConnectionPid, renegotiate).
+%%--------------------------------------------------------------------
+-spec internal_renegotiation(pid(), ssl_record:connection_states()) ->
+ ok.
+%%
+%% Description: Starts a renegotiation of the ssl session.
+%%--------------------------------------------------------------------
+internal_renegotiation(ConnectionPid, #{current_write := WriteState}) ->
+ gen_statem:cast(ConnectionPid, {internal_renegotiate, WriteState}).
get_sslsocket(ConnectionPid) ->
call(ConnectionPid, get_sslsocket).
@@ -335,7 +343,7 @@ handle_own_alert(Alert, Version, StateName,
ssl_options = SslOpts} = State) ->
try %% Try to tell the other side
{BinMsg, _} =
- Connection:encode_alert(Alert, Version, ConnectionStates),
+ Connection:encode_alert(Alert, Version, ConnectionStates),
Connection:send(Transport, Socket, BinMsg)
catch _:_ -> %% Can crash if we are in a uninitialized state
ignore
@@ -353,8 +361,9 @@ handle_normal_shutdown(Alert, _, #state{socket = Socket,
protocol_cb = Connection,
start_or_recv_from = StartFrom,
tracker = Tracker,
- role = Role, renegotiation = {false, first}}) ->
- alert_user(Transport, Tracker,Socket, StartFrom, Alert, Role, Connection);
+ role = Role, renegotiation = {false, first}} = State) ->
+ Pids = Connection:pids(State),
+ alert_user(Pids, Transport, Tracker,Socket, StartFrom, Alert, Role, Connection);
handle_normal_shutdown(Alert, StateName, #state{socket = Socket,
socket_options = Opts,
@@ -362,8 +371,9 @@ handle_normal_shutdown(Alert, StateName, #state{socket = Socket,
protocol_cb = Connection,
user_application = {_Mon, Pid},
tracker = Tracker,
- start_or_recv_from = RecvFrom, role = Role}) ->
- alert_user(Transport, Tracker, Socket, StateName, Opts, Pid, RecvFrom, Alert, Role, Connection).
+ start_or_recv_from = RecvFrom, role = Role} = State) ->
+ Pids = Connection:pids(State),
+ alert_user(Pids, Transport, Tracker, Socket, StateName, Opts, Pid, RecvFrom, Alert, Role, Connection).
handle_alert(#alert{level = ?FATAL} = Alert, StateName,
#state{socket = Socket, transport_cb = Transport,
@@ -374,7 +384,8 @@ handle_alert(#alert{level = ?FATAL} = Alert, StateName,
invalidate_session(Role, Host, Port, Session),
log_alert(SslOpts#ssl_options.log_alert, Role, Connection:protocol_name(),
StateName, Alert#alert{role = opposite_role(Role)}),
- alert_user(Transport, Tracker, Socket, StateName, Opts, Pid, From, Alert, Role, Connection),
+ Pids = Connection:pids(State),
+ alert_user(Pids, Transport, Tracker, Socket, StateName, Opts, Pid, From, Alert, Role, Connection),
stop(normal, State);
handle_alert(#alert{level = ?WARNING, description = ?CLOSE_NOTIFY} = Alert,
@@ -383,12 +394,24 @@ handle_alert(#alert{level = ?WARNING, description = ?CLOSE_NOTIFY} = Alert,
stop({shutdown, peer_close}, State);
handle_alert(#alert{level = ?WARNING, description = ?NO_RENEGOTIATION} = Alert, StateName,
- #state{role = Role, ssl_options = SslOpts, protocol_cb = Connection, renegotiation = {true, internal}} = State) ->
+ #state{role = Role, ssl_options = SslOpts, protocol_cb = Connection,
+ renegotiation = {true, internal}} = State) ->
log_alert(SslOpts#ssl_options.log_alert, Role,
Connection:protocol_name(), StateName, Alert#alert{role = opposite_role(Role)}),
handle_normal_shutdown(Alert, StateName, State),
stop({shutdown, peer_close}, State);
+handle_alert(#alert{level = ?WARNING, description = ?NO_RENEGOTIATION} = Alert, connection = StateName,
+ #state{role = Role,
+ ssl_options = SslOpts, renegotiation = {true, From},
+ protocol_cb = Connection} = State0) ->
+ log_alert(SslOpts#ssl_options.log_alert, Role,
+ Connection:protocol_name(), StateName, Alert#alert{role = opposite_role(Role)}),
+ gen_statem:reply(From, {error, renegotiation_rejected}),
+ State1 = Connection:reinit_handshake_data(State0),
+ {Record, State} = Connection:next_record(State1#state{renegotiation = undefined}),
+ Connection:next_event(connection, Record, State);
+
handle_alert(#alert{level = ?WARNING, description = ?NO_RENEGOTIATION} = Alert, StateName,
#state{role = Role,
ssl_options = SslOpts, renegotiation = {true, From},
@@ -398,7 +421,7 @@ handle_alert(#alert{level = ?WARNING, description = ?NO_RENEGOTIATION} = Alert,
gen_statem:reply(From, {error, renegotiation_rejected}),
{Record, State1} = Connection:next_record(State0),
%% Go back to connection!
- State = Connection:reinit_handshake_data(State1#state{renegotiation = undefined}),
+ State = Connection:reinit(State1#state{renegotiation = undefined}),
Connection:next_event(connection, Record, State);
%% Gracefully log and ignore all other warning alerts
@@ -412,36 +435,6 @@ handle_alert(#alert{level = ?WARNING} = Alert, StateName,
%%====================================================================
%% Data handling
%%====================================================================
-write_application_data(Data0, {FromPid, _} = From,
- #state{socket = Socket,
- negotiated_version = Version,
- protocol_cb = Connection,
- transport_cb = Transport,
- connection_states = ConnectionStates0,
- socket_options = SockOpts,
- ssl_options = #ssl_options{renegotiate_at = RenegotiateAt}} = State) ->
- Data = encode_packet(Data0, SockOpts),
-
- case time_to_renegotiate(Data, ConnectionStates0, RenegotiateAt) of
- true ->
- Connection:renegotiate(State#state{renegotiation = {true, internal}},
- [{next_event, {call, From}, {application_data, Data0}}]);
- false ->
- {Msgs, ConnectionStates} =
- Connection:encode_data(Data, Version, ConnectionStates0),
- NewState = State#state{connection_states = ConnectionStates},
- case Connection:send(Transport, Socket, Msgs) of
- ok when FromPid =:= self() ->
- hibernate_after(connection, NewState, []);
- Error when FromPid =:= self() ->
- stop({shutdown, Error}, NewState);
- ok ->
- hibernate_after(connection, NewState, [{reply, From, ok}]);
- Result ->
- hibernate_after(connection, NewState, [{reply, From, Result}])
- end
- end.
-
read_application_data(Data, #state{user_application = {_Mon, Pid},
socket = Socket,
protocol_cb = Connection,
@@ -481,9 +474,9 @@ read_application_data(Data, #state{user_application = {_Mon, Pid},
end;
_ ->
SocketOpt =
- deliver_app_data(
- Transport, Socket, SOpts,
- ClientData, Pid, RecvFrom, Tracker, Connection),
+ deliver_app_data(Connection:pids(State0),
+ Transport, Socket, SOpts,
+ ClientData, Pid, RecvFrom, Tracker, Connection),
cancel_timer(Timer),
State =
State0#state{
@@ -508,7 +501,8 @@ read_application_data(Data, #state{user_application = {_Mon, Pid},
{passive, Buffer} ->
Connection:next_record_if_active(State0#state{user_data_buffer = Buffer});
{error,_Reason} -> %% Invalid packet in packet mode
- deliver_packet_error(Transport, Socket, SOpts, Buffer1, Pid, RecvFrom, Tracker, Connection),
+ deliver_packet_error(Connection:pids(State0),
+ Transport, Socket, SOpts, Buffer1, Pid, RecvFrom, Tracker, Connection),
stop(normal, State0)
end.
%%====================================================================
@@ -728,8 +722,8 @@ abbreviated(internal, #next_protocol{selected_protocol = SelectedProtocol},
Connection:next_event(?FUNCTION_NAME, Record,
State#state{expecting_next_protocol_negotiation = false});
abbreviated(internal,
- #change_cipher_spec{type = <<1>>}, #state{connection_states = ConnectionStates0} =
- State0, Connection) ->
+ #change_cipher_spec{type = <<1>>},
+ #state{connection_states = ConnectionStates0} = State0, Connection) ->
ConnectionStates1 =
ssl_record:activate_pending_connection_state(ConnectionStates0, read, Connection),
{Record, State} = Connection:next_record(State0#state{connection_states =
@@ -1025,22 +1019,6 @@ cipher(Type, Msg, State, Connection) ->
#state{}, tls_connection | dtls_connection) ->
gen_statem:state_function_result().
%%--------------------------------------------------------------------
-connection({call, {FromPid, _} = From}, {application_data, Data},
- #state{protocol_cb = Connection} = State, Connection) ->
- %% We should look into having a worker process to do this to
- %% parallize send and receive decoding and not block the receiver
- %% if sending is overloading the socket.
- try
- write_application_data(Data, From, State)
- catch throw:Error ->
- case self() of
- FromPid ->
- stop({shutdown, Error}, State);
- _ ->
- hibernate_after(
- ?FUNCTION_NAME, State, [{reply, From, Error}])
- end
- end;
connection({call, RecvFrom}, {recv, N, Timeout},
#state{protocol_cb = Connection, socket_options =
#socket_options{active = false}} = State0, Connection) ->
@@ -1067,13 +1045,10 @@ connection({call, From}, negotiated_protocol,
#state{negotiated_protocol = SelectedProtocol} = State, _) ->
hibernate_after(?FUNCTION_NAME, State,
[{reply, From, {ok, SelectedProtocol}}]);
-connection(
- {call, From}, {handshake_complete, _Node, DHandle},
- #state{
- ssl_options = #ssl_options{erl_dist = true},
- socket_options = SockOpts,
- protocol_specific = ProtocolSpecific} = State,
- Connection) ->
+connection({call, From}, {handshake_complete, _Node, DHandle},
+ #state{ssl_options = #ssl_options{erl_dist = true},
+ socket_options = SockOpts,
+ protocol_specific = ProtocolSpecific} = State, Connection) ->
%% From now on we execute on normal priority
process_flag(priority, normal),
try erlang:dist_ctrl_get_data_notification(DHandle) of
@@ -1091,23 +1066,20 @@ connection(
end;
connection({call, From}, Msg, State, Connection) ->
handle_call(Msg, From, ?FUNCTION_NAME, State, Connection);
-connection(
- info, dist_data = Msg,
- #state{
- ssl_options = #ssl_options{erl_dist = true},
- protocol_specific = #{d_handle := DHandle}} = State,
- _) ->
+connection(cast, {internal_renegotiate, WriteState}, #state{protocol_cb = Connection,
+ connection_states = ConnectionStates}
+ = State, Connection) ->
+ Connection:renegotiate(State#state{renegotiation = {true, internal},
+ connection_states = ConnectionStates#{current_write => WriteState}}, []);
+connection(info, dist_data = Msg, #state{ssl_options = #ssl_options{erl_dist = true},
+ protocol_specific = #{d_handle := DHandle}} = State, _) ->
eat_msgs(Msg),
try send_dist_data(?FUNCTION_NAME, State, DHandle, [])
catch error:_ ->
death_row(State, disconnect)
end;
-connection(
- info, {send, From, Ref, Data},
- #state{
- ssl_options = #ssl_options{erl_dist = true},
- protocol_specific = #{d_handle := _}},
- _) ->
+connection(info, {send, From, Ref, Data}, #state{ssl_options = #ssl_options{erl_dist = true},
+ protocol_specific = #{d_handle := _}}, _) ->
%% This is for testing only!
%%
%% Needed by some OTP distribution
@@ -1116,12 +1088,8 @@ connection(
{keep_state_and_data,
[{next_event, {call, {self(), undefined}},
{application_data, iolist_to_binary(Data)}}]};
-connection(
- info, tick = Msg,
- #state{
- ssl_options = #ssl_options{erl_dist = true},
- protocol_specific = #{d_handle := _}},
- _) ->
+connection(info, tick = Msg, #state{ssl_options = #ssl_options{erl_dist = true},
+ protocol_specific = #{d_handle := _}},_) ->
eat_msgs(Msg),
{keep_state_and_data,
[{next_event, {call, {self(), undefined}}, {application_data, <<>>}}]};
@@ -1336,7 +1304,8 @@ handle_info({ErrorTag, Socket, econnaborted}, StateName,
start_or_recv_from = StartFrom, role = Role,
error_tag = ErrorTag,
tracker = Tracker} = State) when StateName =/= connection ->
- alert_user(Transport, Tracker,Socket,
+ Pids = Connection:pids(State),
+ alert_user(Pids, Transport, Tracker,Socket,
StartFrom, ?ALERT_REC(?FATAL, ?CLOSE_NOTIFY), Role, Connection),
stop(normal, State);
@@ -1422,15 +1391,14 @@ terminate({shutdown, own_alert}, _StateName, #state{%%send_queue = SendQueue,
_ ->
Connection:close({timeout, ?DEFAULT_TIMEOUT}, Socket, Transport, undefined, undefined)
end;
-terminate(Reason, connection, #state{negotiated_version = Version,
- protocol_cb = Connection,
- connection_states = ConnectionStates0,
+terminate(Reason, connection, #state{protocol_cb = Connection,
+ connection_states = ConnectionStates,
ssl_options = #ssl_options{padding_check = Check},
transport_cb = Transport, socket = Socket
} = State) ->
handle_trusted_certs_db(State),
- {BinAlert, ConnectionStates} = terminate_alert(Reason, Version, ConnectionStates0, Connection),
- Connection:send(Transport, Socket, BinAlert),
+ Alert = terminate_alert(Reason),
+ ok = Connection:send_alert_in_connection(Alert, State),
Connection:close(Reason, Socket, Transport, ConnectionStates, Check);
terminate(Reason, _StateName, #state{transport_cb = Transport, protocol_cb = Connection,
socket = Socket
@@ -2377,18 +2345,13 @@ map_extensions(#hello_extensions{renegotiation_info = RenegotiationInfo,
elliptic_curves => ssl_handshake:extension_value(ECCCurves),
sni => ssl_handshake:extension_value(SNI)}.
-terminate_alert(normal, Version, ConnectionStates, Connection) ->
- Connection:encode_alert(?ALERT_REC(?WARNING, ?CLOSE_NOTIFY),
- Version, ConnectionStates);
-terminate_alert({Reason, _}, Version, ConnectionStates, Connection) when Reason == close;
- Reason == shutdown ->
- Connection:encode_alert(?ALERT_REC(?WARNING, ?CLOSE_NOTIFY),
- Version, ConnectionStates);
-
-terminate_alert(_, Version, ConnectionStates, Connection) ->
- {BinAlert, _} = Connection:encode_alert(?ALERT_REC(?FATAL, ?INTERNAL_ERROR),
- Version, ConnectionStates),
- BinAlert.
+terminate_alert(normal) ->
+ ?ALERT_REC(?WARNING, ?CLOSE_NOTIFY);
+terminate_alert({Reason, _}) when Reason == close;
+ Reason == shutdown ->
+ ?ALERT_REC(?WARNING, ?CLOSE_NOTIFY);
+terminate_alert(_) ->
+ ?ALERT_REC(?FATAL, ?INTERNAL_ERROR).
handle_trusted_certs_db(#state{ssl_options =
#ssl_options{cacertfile = <<>>, cacerts = []}}) ->
@@ -2418,16 +2381,15 @@ prepare_connection(#state{renegotiation = Renegotiate,
start_or_recv_from = RecvFrom} = State0, Connection)
when Renegotiate =/= {false, first},
RecvFrom =/= undefined ->
- State1 = Connection:reinit_handshake_data(State0),
+ State1 = Connection:reinit(State0),
{Record, State} = Connection:next_record(State1),
{Record, ack_connection(State)};
prepare_connection(State0, Connection) ->
- State = Connection:reinit_handshake_data(State0),
+ State = Connection:reinit(State0),
{no_record, ack_connection(State)}.
-ack_connection(#state{renegotiation = {true, Initiater}} = State)
- when Initiater == internal;
- Initiater == peer ->
+ack_connection(#state{renegotiation = {true, Initiater}} = State) when Initiater == peer;
+ Initiater == internal ->
State#state{renegotiation = undefined};
ack_connection(#state{renegotiation = {true, From}} = State) ->
gen_statem:reply(From, ok),
@@ -2576,35 +2538,6 @@ handle_active_option(_, StateName0, To, Reply, #state{protocol_cb = Connection}
end
end.
-encode_packet(Data, #socket_options{packet=Packet}) ->
- case Packet of
- 1 -> encode_size_packet(Data, 8, (1 bsl 8) - 1);
- 2 -> encode_size_packet(Data, 16, (1 bsl 16) - 1);
- 4 -> encode_size_packet(Data, 32, (1 bsl 32) - 1);
- _ -> Data
- end.
-
-encode_size_packet(Bin, Size, Max) ->
- Len = erlang:byte_size(Bin),
- case Len > Max of
- true -> throw({error, {badarg, {packet_to_large, Len, Max}}});
- false -> <<Len:Size, Bin/binary>>
- end.
-
-time_to_renegotiate(_Data,
- #{current_write := #{sequence_number := Num}},
- RenegotiateAt) ->
-
- %% We could do test:
- %% is_time_to_renegotiate((erlang:byte_size(_Data) div ?MAX_PLAIN_TEXT_LENGTH) + 1, RenegotiateAt),
- %% but we chose to have a some what lower renegotiateAt and a much cheaper test
- is_time_to_renegotiate(Num, RenegotiateAt).
-
-is_time_to_renegotiate(N, M) when N < M->
- false;
-is_time_to_renegotiate(_,_) ->
- true.
-
%% Picks ClientData
get_data(_, _, <<>>) ->
@@ -2651,9 +2584,10 @@ 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(Transport, Socket, SOpts = #socket_options{active=Active, packet=Type},
+deliver_app_data(CPids, Transport, Socket, SOpts = #socket_options{active=Active, packet=Type},
Data, Pid, From, Tracker, Connection) ->
- send_or_reply(Active, Pid, From, format_reply(Transport, Socket, SOpts, Data, Tracker, Connection)),
+ send_or_reply(Active, Pid, From,
+ format_reply(CPids, Transport, Socket, SOpts, Data, Tracker, Connection)),
SO = case Data of
{P, _, _, _} when ((P =:= http_request) or (P =:= http_response)),
((Type =:= http) or (Type =:= http_bin)) ->
@@ -2672,21 +2606,24 @@ deliver_app_data(Transport, Socket, SOpts = #socket_options{active=Active, packe
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, do_format_reply(Mode, Packet, Header, Data)};
-format_reply(Transport, Socket, #socket_options{active = _, mode = Mode, packet = Packet,
+format_reply(CPids, Transport, Socket, #socket_options{active = _, mode = Mode, packet = Packet,
header = Header}, Data, Tracker, Connection) ->
- {ssl, Connection:socket(self(), Transport, Socket, Connection, Tracker),
+ {ssl, Connection:socket(CPids, Transport, Socket, Connection, Tracker),
do_format_reply(Mode, Packet, Header, Data)}.
-deliver_packet_error(Transport, Socket, SO= #socket_options{active = Active}, Data, Pid, From, Tracker, Connection) ->
- send_or_reply(Active, Pid, From, format_packet_error(Transport, Socket, SO, Data, Tracker, Connection)).
+deliver_packet_error(CPids, Transport, Socket,
+ SO= #socket_options{active = Active}, Data, Pid, From, Tracker, Connection) ->
+ send_or_reply(Active, Pid, From, format_packet_error(CPids,
+ Transport, Socket, SO, Data, Tracker, Connection)).
-format_packet_error(_, _,#socket_options{active = false, mode = Mode}, Data, _, _) ->
+format_packet_error(_, _, _,#socket_options{active = false, mode = Mode}, Data, _, _) ->
{error, {invalid_packet, do_format_reply(Mode, raw, 0, Data)}};
-format_packet_error(Transport, Socket, #socket_options{active = _, mode = Mode}, Data, Tracker, Connection) ->
- {ssl_error, Connection:socket(self(), Transport, Socket, Connection, Tracker),
+format_packet_error(CPids, Transport, Socket, #socket_options{active = _, mode = Mode},
+ Data, Tracker, Connection) ->
+ {ssl_error, Connection:socket(CPids, Transport, Socket, Connection, Tracker),
{invalid_packet, do_format_reply(Mode, raw, 0, Data)}}.
do_format_reply(binary, _, N, Data) when N > 0 -> % Header mode
@@ -2724,29 +2661,29 @@ send_user(Pid, Msg) ->
Pid ! Msg,
ok.
-alert_user(Transport, Tracker, Socket, connection, Opts, Pid, From, Alert, Role, Connection) ->
- alert_user(Transport, Tracker, Socket, Opts#socket_options.active, Pid, From, Alert, Role, Connection);
-alert_user(Transport, Tracker, Socket,_, _, _, From, Alert, Role, Connection) ->
- alert_user(Transport, Tracker, Socket, From, Alert, Role, Connection).
+alert_user(Pids, Transport, Tracker, Socket, connection, Opts, Pid, From, Alert, Role, Connection) ->
+ alert_user(Pids, Transport, Tracker, Socket, Opts#socket_options.active, Pid, From, Alert, Role, Connection);
+alert_user(Pids, Transport, Tracker, Socket,_, _, _, From, Alert, Role, Connection) ->
+ alert_user(Pids, Transport, Tracker, Socket, From, Alert, Role, Connection).
-alert_user(Transport, Tracker, Socket, From, Alert, Role, Connection) ->
- alert_user(Transport, Tracker, Socket, false, no_pid, From, Alert, Role, Connection).
+alert_user(Pids, Transport, Tracker, Socket, From, Alert, Role, Connection) ->
+ alert_user(Pids, Transport, Tracker, Socket, false, no_pid, From, Alert, Role, Connection).
-alert_user(_, _, _, false = Active, Pid, From, Alert, Role, _) when From =/= undefined ->
+alert_user(_, _, _, _, false = Active, Pid, From, Alert, Role, _) when From =/= undefined ->
%% 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(Transport, Tracker, Socket, Active, Pid, From, Alert, Role, Connection) ->
+alert_user(Pids, Transport, Tracker, Socket, Active, Pid, From, Alert, Role, Connection) ->
case ssl_alert:reason_code(Alert, Role) of
closed ->
send_or_reply(Active, Pid, From,
- {ssl_closed, Connection:socket(self(),
+ {ssl_closed, Connection:socket(Pids,
Transport, Socket, Connection, Tracker)});
ReasonCode ->
send_or_reply(Active, Pid, From,
- {ssl_error, Connection:socket(self(),
+ {ssl_error, Connection:socket(Pids,
Transport, Socket, Connection, Tracker), ReasonCode})
end.
diff --git a/lib/ssl/src/ssl_connection.hrl b/lib/ssl/src/ssl_connection.hrl
index 9cef0c9605..504a141a4a 100644
--- a/lib/ssl/src/ssl_connection.hrl
+++ b/lib/ssl/src/ssl_connection.hrl
@@ -44,6 +44,7 @@
host :: string() | inet:ip_address(),
port :: integer(),
socket :: port() | tuple(), %% TODO: dtls socket
+ sender :: pid() | undefined,
ssl_options :: #ssl_options{},
socket_options :: #socket_options{},
connection_states :: ssl_record:connection_states() | secret_printout(),
diff --git a/lib/ssl/src/tls_connection.erl b/lib/ssl/src/tls_connection.erl
index 4d1122f804..ef52421523 100644
--- a/lib/ssl/src/tls_connection.erl
+++ b/lib/ssl/src/tls_connection.erl
@@ -43,22 +43,24 @@
%% Internal application API
%% Setup
--export([start_fsm/8, start_link/7, init/1]).
+-export([start_fsm/8, start_link/8, init/1, pids/1]).
%% State transition handling
--export([next_record/1, next_event/3, next_event/4, handle_common_event/4]).
+-export([next_record/1, next_event/3, next_event/4,
+ handle_common_event/4]).
%% Handshake handling
--export([renegotiate/2, send_handshake/2,
+-export([renegotiation/2, renegotiate/2, send_handshake/2,
queue_handshake/2, queue_change_cipher/2,
- reinit_handshake_data/1, select_sni_extension/1, empty_connection_state/2]).
+ reinit/1, reinit_handshake_data/1, select_sni_extension/1,
+ empty_connection_state/2]).
%% Alert and close handling
--export([encode_alert/3, send_alert/2, close/5, protocol_name/0]).
+-export([send_alert/2, send_alert_in_connection/2, encode_alert/3, close/5, protocol_name/0]).
%% Data handling
--export([encode_data/3, passive_receive/2, next_record_if_active/1, send/3,
- socket/5, setopts/3, getopts/3]).
+-export([encode_data/3, passive_receive/2, next_record_if_active/1,
+ send/3, socket/5, setopts/3, getopts/3]).
%% gen_statem state functions
-export([init/3, error/3, downgrade/3, %% Initiation and take down states
@@ -77,9 +79,10 @@ start_fsm(Role, Host, Port, Socket, {#ssl_options{erl_dist = false},_, Tracker}
User, {CbModule, _,_, _} = CbInfo,
Timeout) ->
try
- {ok, Pid} = tls_connection_sup:start_child([Role, Host, Port, Socket,
+ {ok, Sender} = tls_sender:start(),
+ {ok, Pid} = tls_connection_sup:start_child([Role, Sender, Host, Port, Socket,
Opts, User, CbInfo]),
- {ok, SslSocket} = ssl_connection:socket_control(?MODULE, Socket, Pid, CbModule, Tracker),
+ {ok, SslSocket} = ssl_connection:socket_control(?MODULE, Socket, [Pid, Sender], CbModule, Tracker),
ssl_connection:handshake(SslSocket, Timeout)
catch
error:{badmatch, {error, _} = Error} ->
@@ -90,9 +93,10 @@ start_fsm(Role, Host, Port, Socket, {#ssl_options{erl_dist = true},_, Tracker} =
User, {CbModule, _,_, _} = CbInfo,
Timeout) ->
try
- {ok, Pid} = tls_connection_sup:start_child_dist([Role, Host, Port, Socket,
+ {ok, Sender} = tls_sender:start(),
+ {ok, Pid} = tls_connection_sup:start_child_dist([Role, Sender, Host, Port, Socket,
Opts, User, CbInfo]),
- {ok, SslSocket} = ssl_connection:socket_control(?MODULE, Socket, Pid, CbModule, Tracker),
+ {ok, SslSocket} = ssl_connection:socket_control(?MODULE, Socket, [Pid, Sender], CbModule, Tracker),
ssl_connection:handshake(SslSocket, Timeout)
catch
error:{badmatch, {error, _} = Error} ->
@@ -100,25 +104,31 @@ start_fsm(Role, Host, Port, Socket, {#ssl_options{erl_dist = true},_, Tracker} =
end.
%%--------------------------------------------------------------------
--spec start_link(atom(), host(), inet:port_number(), port(), list(), pid(), tuple()) ->
+-spec start_link(atom(), pid(), host(), inet:port_number(), port(), list(), pid(), tuple()) ->
{ok, pid()} | ignore | {error, reason()}.
%%
%% Description: Creates a gen_statem process which calls Module:init/1 to
%% initialize.
%%--------------------------------------------------------------------
-start_link(Role, Host, Port, Socket, Options, User, CbInfo) ->
- {ok, proc_lib:spawn_link(?MODULE, init, [[Role, Host, Port, Socket, Options, User, CbInfo]])}.
+start_link(Role, Sender, Host, Port, Socket, Options, User, CbInfo) ->
+ {ok, proc_lib:spawn_link(?MODULE, init, [[Role, Sender, Host, Port, Socket, Options, User, CbInfo]])}.
-init([Role, Host, Port, Socket, Options, User, CbInfo]) ->
+init([Role, Sender, Host, Port, Socket, Options, User, CbInfo]) ->
process_flag(trap_exit, true),
- State0 = #state{protocol_specific = Map} = initial_state(Role, Host, Port, Socket, Options, User, CbInfo),
+ State0 = #state{protocol_specific = Map} = initial_state(Role, Sender,
+ Host, Port, Socket, Options, User, CbInfo),
try
State = ssl_connection:ssl_config(State0#state.ssl_options, Role, State0),
- gen_statem:enter_loop(?MODULE, [], init, State)
+ initialize_tls_sender(State),
+ gen_statem:enter_loop(?MODULE, [], init, State)
catch throw:Error ->
EState = State0#state{protocol_specific = Map#{error => Error}},
gen_statem:enter_loop(?MODULE, [], error, EState)
end.
+
+pids(#state{protocol_specific = #{sender := {_, Sender}}}) ->
+ [self(), Sender].
+
%%====================================================================
%% State transition handling
%%====================================================================
@@ -235,13 +245,15 @@ handle_common_event(internal, #ssl_tls{type = _Unknown}, StateName, State) ->
%%====================================================================
%% Handshake handling
%%====================================================================
+renegotiation(Pid, WriteState) ->
+ gen_statem:call(Pid, {user_renegotiate, WriteState}).
+
renegotiate(#state{role = client} = State, Actions) ->
%% Handle same way as if server requested
%% the renegotiation
Hs0 = ssl_handshake:init_handshake_history(),
{next_state, connection, State#state{tls_handshake_history = Hs0},
[{next_event, internal, #hello_request{}} | Actions]};
-
renegotiate(#state{role = server,
socket = Socket,
transport_cb = Transport,
@@ -286,6 +298,12 @@ queue_change_cipher(Msg, #state{negotiated_version = Version,
State0#state{connection_states = ConnectionStates,
flight_buffer = Flight0 ++ [BinChangeCipher]}.
+reinit(#state{protocol_specific = #{sender := {_,Sender}},
+ negotiated_version = Version,
+ connection_states = #{current_write := Write}} = State) ->
+ tls_sender:update_connection_state(Sender, Write, Version),
+ reinit_handshake_data(State).
+
reinit_handshake_data(State) ->
%% premaster_secret, public_key_info and tls_handshake_info
%% are only needed during the handshake phase.
@@ -307,15 +325,6 @@ empty_connection_state(ConnectionEnd, BeastMitigation) ->
%%====================================================================
%% Alert and close handling
%%====================================================================
-send_alert(Alert, #state{negotiated_version = Version,
- socket = Socket,
- transport_cb = Transport,
- connection_states = ConnectionStates0} = State0) ->
- {BinMsg, ConnectionStates} =
- encode_alert(Alert, Version, ConnectionStates0),
- send(Transport, Socket, BinMsg),
- State0#state{connection_states = ConnectionStates}.
-
%%--------------------------------------------------------------------
-spec encode_alert(#alert{}, ssl_record:ssl_version(), ssl_record:connection_states()) ->
{iolist(), ssl_record:connection_states()}.
@@ -324,6 +333,20 @@ send_alert(Alert, #state{negotiated_version = Version,
%%--------------------------------------------------------------------
encode_alert(#alert{} = Alert, Version, ConnectionStates) ->
tls_record:encode_alert_record(Alert, Version, ConnectionStates).
+
+send_alert(Alert, #state{negotiated_version = Version,
+ socket = Socket,
+ protocol_cb = Connection,
+ transport_cb = Transport,
+ connection_states = ConnectionStates0} = StateData0) ->
+ {BinMsg, ConnectionStates} =
+ Connection:encode_alert(Alert, Version, ConnectionStates0),
+ Connection:send(Transport, Socket, BinMsg),
+ StateData0#state{connection_states = ConnectionStates}.
+
+send_alert_in_connection(Alert, #state{protocol_specific = #{sender := {_, Sender}}}) ->
+ tls_sender:send_alert(Sender, Alert).
+
%% User closes or recursive call!
close({close, Timeout}, Socket, Transport = gen_tcp, _,_) ->
tls_socket:setopts(Transport, Socket, [{active, false}]),
@@ -378,8 +401,8 @@ next_record_if_active(State) ->
send(Transport, Socket, Data) ->
tls_socket:send(Transport, Socket, Data).
-socket(Pid, Transport, Socket, Connection, Tracker) ->
- tls_socket:socket(Pid, Transport, Socket, Connection, Tracker).
+socket(Pids, Transport, Socket, Connection, Tracker) ->
+ tls_socket:socket(Pids, Transport, Socket, Connection, Tracker).
setopts(Transport, Socket, Other) ->
tls_socket:setopts(Transport, Socket, Other).
@@ -448,15 +471,17 @@ error(_, _, _) ->
#state{}) ->
gen_statem:state_function_result().
%%--------------------------------------------------------------------
-hello(internal, #client_hello{extensions = Extensions} = Hello, #state{ssl_options = #ssl_options{handshake = hello},
- start_or_recv_from = From} = State) ->
- {next_state, user_hello, State#state{start_or_recv_from = undefined,
+hello(internal, #client_hello{extensions = Extensions} = Hello,
+ #state{ssl_options = #ssl_options{handshake = hello},
+ start_or_recv_from = From} = State) ->
+ {next_state, user_hello, State#state{start_or_recv_from = undefined,
hello = Hello},
[{reply, From, {ok, ssl_connection:map_extensions(Extensions)}}]};
-hello(internal, #server_hello{extensions = Extensions} = Hello, #state{ssl_options = #ssl_options{handshake = hello},
- start_or_recv_from = From} = State) ->
+hello(internal, #server_hello{extensions = Extensions} = Hello,
+ #state{ssl_options = #ssl_options{handshake = hello},
+ start_or_recv_from = From} = State) ->
{next_state, user_hello, State#state{start_or_recv_from = undefined,
- hello = Hello},
+ hello = Hello},
[{reply, From, {ok, ssl_connection:map_extensions(Extensions)}}]};
hello(internal, #client_hello{client_version = ClientVersion} = Hello,
#state{connection_states = ConnectionStates0,
@@ -540,14 +565,19 @@ cipher(Type, Event, State) ->
%%--------------------------------------------------------------------
connection(info, Event, State) ->
gen_info(Event, ?FUNCTION_NAME, State);
+connection({call, From}, {user_renegotiate, WriteState},
+ #state{connection_states = ConnectionStates} = State) ->
+ {next_state, ?FUNCTION_NAME, State#state{connection_states = ConnectionStates#{current_write => WriteState}},
+ [{next_event,{call, From}, renegotiate}]};
connection(internal, #hello_request{},
- #state{role = client, host = Host, port = Port,
+ #state{role = client,
+ renegotiation = {Renegotiation, _},
+ host = Host, port = Port,
session = #session{own_certificate = Cert} = Session0,
session_cache = Cache, session_cache_cb = CacheCb,
- ssl_options = SslOpts,
- connection_states = ConnectionStates0,
- renegotiation = {Renegotiation, _}} = State0) ->
- Hello = tls_handshake:client_hello(Host, Port, ConnectionStates0, SslOpts,
+ ssl_options = SslOpts,
+ connection_states = ConnectionStates} = State0) ->
+ Hello = tls_handshake:client_hello(Host, Port, ConnectionStates, SslOpts,
Cache, CacheCb, Renegotiation, Cert),
{State1, Actions} = send_handshake(Hello, State0),
{Record, State} =
@@ -556,7 +586,10 @@ connection(internal, #hello_request{},
= Hello#client_hello.session_id}}),
next_event(hello, Record, State, Actions);
connection(internal, #client_hello{} = Hello,
- #state{role = server, allow_renegotiate = true} = State0) ->
+ #state{role = server, allow_renegotiate = true, connection_states = CS,
+ %%protocol_cb = Connection,
+ protocol_specific = #{sender := {_, Sender}}
+ } = State0) ->
%% Mitigate Computational DoS attack
%% http://www.educatedguesswork.org/2011/10/ssltls_and_computational_dos.html
%% http://www.thc.org/thc-ssl-dos/ Rather than disabling client
@@ -565,12 +598,16 @@ connection(internal, #client_hello{} = Hello,
erlang:send_after(?WAIT_TO_ALLOW_RENEGOTIATION, self(), allow_renegotiate),
{Record, State} = next_record(State0#state{allow_renegotiate = false,
renegotiation = {true, peer}}),
- next_event(hello, Record, State, [{next_event, internal, Hello}]);
+ {ok, Write} = tls_sender:renegotiate(Sender),
+ next_event(hello, Record, State#state{connection_states = CS#{current_write => Write}},
+ [{next_event, internal, Hello}]);
connection(internal, #client_hello{},
- #state{role = server, allow_renegotiate = false} = State0) ->
+ #state{role = server, allow_renegotiate = false,
+ protocol_cb = Connection} = State0) ->
Alert = ?ALERT_REC(?WARNING, ?NO_RENEGOTIATION),
- State1 = send_alert(Alert, State0),
- {Record, State} = ssl_connection:prepare_connection(State1, ?MODULE),
+ send_alert_in_connection(Alert, State0),
+ State1 = Connection:reinit_handshake_data(State0),
+ {Record, State} = next_record(State1),
next_event(?FUNCTION_NAME, Record, State);
connection(Type, Event, State) ->
ssl_connection:?FUNCTION_NAME(Type, Event, State, ?MODULE).
@@ -607,7 +644,7 @@ code_change(_OldVsn, StateName, State, _) ->
%%--------------------------------------------------------------------
%%% Internal functions
%%--------------------------------------------------------------------
-initial_state(Role, Host, Port, Socket, {SSLOptions, SocketOptions, Tracker}, User,
+initial_state(Role, Sender, Host, Port, Socket, {SSLOptions, SocketOptions, Tracker}, User,
{CbModule, DataTag, CloseTag, ErrorTag}) ->
#ssl_options{beast_mitigation = BeastMitigation} = SSLOptions,
ConnectionStates = tls_record:init_connection_states(Role, BeastMitigation),
@@ -619,7 +656,8 @@ initial_state(Role, Host, Port, Socket, {SSLOptions, SocketOptions, Tracker}, Us
ssl_session_cache
end,
- Monitor = erlang:monitor(process, User),
+ UserMonitor = erlang:monitor(process, User),
+ SendMonitor = erlang:monitor(process, Sender),
#state{socket_options = SocketOptions,
ssl_options = SSLOptions,
@@ -634,7 +672,7 @@ initial_state(Role, Host, Port, Socket, {SSLOptions, SocketOptions, Tracker}, Us
socket = Socket,
connection_states = ConnectionStates,
protocol_buffers = #protocol_buffers{},
- user_application = {Monitor, User},
+ user_application = {UserMonitor, User},
user_data_buffer = <<>>,
session_cache_cb = SessionCacheCb,
renegotiation = {false, first},
@@ -642,9 +680,27 @@ initial_state(Role, Host, Port, Socket, {SSLOptions, SocketOptions, Tracker}, Us
start_or_recv_from = undefined,
protocol_cb = ?MODULE,
tracker = Tracker,
- flight_buffer = []
+ flight_buffer = [],
+ protocol_specific = #{sender => {SendMonitor, Sender}}
}.
+initialize_tls_sender(#state{socket = Socket,
+ socket_options = SockOpts,
+ protocol_cb = Connection,
+ transport_cb = Transport,
+ negotiated_version = Version,
+ ssl_options = #ssl_options{renegotiate_at = RenegotiateAt},
+ connection_states = #{current_write := ConnectionWriteState},
+ protocol_specific = #{sender := {_, Sender}}}) ->
+ Init = #{current_write => ConnectionWriteState,
+ socket => Socket,
+ socket_options => SockOpts,
+ protocol_cb => Connection,
+ transport_cb => Transport,
+ negotiated_version => Version,
+ renegotiate_at => RenegotiateAt},
+ tls_sender:initialize(Sender, Init).
+
next_tls_record(Data, StateName, #state{protocol_buffers =
#protocol_buffers{tls_record_buffer = Buf0,
tls_cipher_texts = CT0} = Buffers}
@@ -716,6 +772,8 @@ handle_info({CloseTag, Socket}, StateName,
%% and then receive the final message.
next_event(StateName, no_record, State)
end;
+handle_info({'DOWN', Mon, _, _, Reason}, _, #state{protocol_specific = #{sender:= {Mon, _}}} = State) ->
+ {stop, {shudown, sender_died, Reason}, State};
handle_info(Msg, StateName, State) ->
ssl_connection:StateName(info, Msg, State, ?MODULE).
@@ -784,7 +842,8 @@ unprocessed_events(Events) ->
erlang:length(Events)-1.
-assert_buffer_sanity(<<?BYTE(_Type), ?UINT24(Length), Rest/binary>>, #ssl_options{max_handshake_size = Max}) when
+assert_buffer_sanity(<<?BYTE(_Type), ?UINT24(Length), Rest/binary>>,
+ #ssl_options{max_handshake_size = Max}) when
Length =< Max ->
case size(Rest) of
N when N < Length ->
diff --git a/lib/ssl/src/tls_sender.erl b/lib/ssl/src/tls_sender.erl
new file mode 100644
index 0000000000..4aeb13284f
--- /dev/null
+++ b/lib/ssl/src/tls_sender.erl
@@ -0,0 +1,281 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2018-2018. All Rights Reserved.
+%%
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%% http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+-module(tls_sender).
+
+-behaviour(gen_statem).
+
+-include("ssl_internal.hrl").
+-include("ssl_alert.hrl").
+-include("ssl_handshake.hrl").
+
+%% API
+-export([start/0, initialize/2, send_data/2, send_alert/2, renegotiate/1,
+ update_connection_state/3]).
+
+%% gen_statem callbacks
+-export([callback_mode/0, init/1, terminate/3, code_change/4]).
+-export([init/3, connection/3, handshake/3]).
+
+-define(SERVER, ?MODULE).
+
+-record(data, {connection_pid,
+ connection_states = #{},
+ socket,
+ socket_options,
+ protocol_cb,
+ transport_cb,
+ negotiated_version,
+ renegotiate_at,
+ connection_monitor
+ }).
+
+%%%===================================================================
+%%% API
+%%%===================================================================
+-spec start() -> {ok, Pid :: pid()} |
+ ignore |
+ {error, Error :: term()}.
+start() ->
+ gen_statem:start(?MODULE, [], []).
+
+initialize(Pid, InitMsg) ->
+ gen_statem:call(Pid, {self(), InitMsg}).
+
+send_data(Pid, AppData) ->
+ %% Needs error handling for external API
+ call(Pid, {application_data, AppData}).
+
+send_alert(Pid, Alert) ->
+ gen_statem:cast(Pid, Alert).
+
+%%--------------------------------------------------------------------
+-spec renegotiate(pid()) -> {ok, WriteState::map()} | {error, closed}.
+%% Description: So TLS connection process can synchronize the
+%% encryption state to be used when handshaking.
+%%--------------------------------------------------------------------
+renegotiate(Pid) ->
+ %% Needs error handling for external API
+ call(Pid, renegotiate).
+%%--------------------------------------------------------------------
+-spec update_connection_state(pid(), WriteState::map(), tls_record:tls_version()) -> ok.
+%% Description: So TLS connection process can synchronize the
+%% encryption state to be used when sending application data.
+%%--------------------------------------------------------------------
+update_connection_state(Pid, NewState, Version) ->
+ gen_statem:cast(Pid, {new_write, NewState, Version}).
+
+%%%===================================================================
+%%% gen_statem callbacks
+%%%===================================================================
+%%--------------------------------------------------------------------
+-spec callback_mode() -> gen_statem:callback_mode_result().
+%%--------------------------------------------------------------------
+callback_mode() ->
+ state_functions.
+
+%%--------------------------------------------------------------------
+-spec init(Args :: term()) ->
+ gen_statem:init_result(atom()).
+%%--------------------------------------------------------------------
+init(_) ->
+ {ok, init, #data{}}.
+
+%%--------------------------------------------------------------------
+-spec init(gen_statem:event_type(),
+ Msg :: term(),
+ StateData :: term()) ->
+ gen_statem:event_handler_result(atom()).
+%%--------------------------------------------------------------------
+init({call, From}, {Pid, #{current_write := WriteState,
+ socket := Socket,
+ socket_options := SockOpts,
+ protocol_cb := Connection,
+ transport_cb := Transport,
+ negotiated_version := Version,
+ renegotiate_at := RenegotiateAt}},
+ #data{connection_states = ConnectionStates} = StateData0) ->
+ Monitor = erlang:monitor(process, Pid),
+ StateData =
+ StateData0#data{connection_pid = Pid,
+ connection_monitor = Monitor,
+ connection_states =
+ ConnectionStates#{current_write => WriteState},
+ socket = Socket,
+ socket_options = SockOpts,
+ protocol_cb = Connection,
+ transport_cb = Transport,
+ negotiated_version = Version,
+ renegotiate_at = RenegotiateAt},
+ {next_state, handshake, StateData, [{reply, From, ok}]};
+init(info, Msg, StateData) ->
+ handle_info(Msg, ?FUNCTION_NAME, StateData).
+%%--------------------------------------------------------------------
+-spec connection(gen_statem:event_type(),
+ Msg :: term(),
+ StateData :: term()) ->
+ gen_statem:event_handler_result(atom()).
+%%--------------------------------------------------------------------
+connection({call, From}, renegotiate,
+ #data{connection_states = #{current_write := Write}} = StateData) ->
+ {next_state, handshake, StateData, [{reply, From, {ok, Write}}]};
+connection({call, From}, {application_data, AppData},
+ #data{socket_options = SockOpts} = StateData) ->
+ case encode_packet(AppData, SockOpts) of
+ {error, _} = Error ->
+ {next_state, ?FUNCTION_NAME, StateData, [{reply, From, Error}]};
+ Data ->
+ send_application_data(Data, From, ?FUNCTION_NAME, StateData)
+ end;
+connection(cast, #alert{} = Alert, StateData0) ->
+ StateData = send_tls_alert(Alert, StateData0),
+ {next_state, ?FUNCTION_NAME, StateData};
+connection(cast, {new_write, WritesState, Version},
+ #data{connection_states = ConnectionStates0} = StateData) ->
+ {next_state, connection,
+ StateData#data{connection_states =
+ ConnectionStates0#{current_write => WritesState},
+ negotiated_version = Version}};
+connection(info, Msg, StateData) ->
+ handle_info(Msg, ?FUNCTION_NAME, StateData).
+%%--------------------------------------------------------------------
+-spec handshake(gen_statem:event_type(),
+ Msg :: term(),
+ StateData :: term()) ->
+ gen_statem:event_handler_result(atom()).
+%%--------------------------------------------------------------------
+handshake({call, _}, _, _) ->
+ {keep_state_and_data, [postpone]};
+handshake(cast, {new_write, WritesState, Version},
+ #data{connection_states = ConnectionStates0} = StateData) ->
+ {next_state, connection,
+ StateData#data{connection_states =
+ ConnectionStates0#{current_write => WritesState},
+ negotiated_version = Version}};
+handshake(info, Msg, StateData) ->
+ handle_info(Msg, ?FUNCTION_NAME, StateData).
+
+%%--------------------------------------------------------------------
+-spec terminate(Reason :: term(), State :: term(), Data :: term()) ->
+ any().
+%%--------------------------------------------------------------------
+terminate(_Reason, _State, _Data) ->
+ void.
+
+%%--------------------------------------------------------------------
+-spec code_change(
+ OldVsn :: term() | {down,term()},
+ State :: term(), Data :: term(), Extra :: term()) ->
+ {ok, NewState :: term(), NewData :: term()} |
+ (Reason :: term()).
+%% Convert process state when code is changed
+%%--------------------------------------------------------------------
+code_change(_OldVsn, State, Data, _Extra) ->
+ {ok, State, Data}.
+
+%%%===================================================================
+%%% Internal functions
+%%%===================================================================
+handle_info({'DOWN', Monitor, _, _, Reason}, _,
+ #data{connection_monitor = Monitor} = StateData) ->
+ {stop, {shutdown, Reason}, StateData};
+handle_info(_,_,_) ->
+ {keep_state_and_data}.
+
+send_tls_alert(Alert, #data{negotiated_version = Version,
+ socket = Socket,
+ protocol_cb = Connection,
+ transport_cb = Transport,
+ connection_states = ConnectionStates0} = StateData0) ->
+ {BinMsg, ConnectionStates} =
+ Connection:encode_alert(Alert, Version, ConnectionStates0),
+ Connection:send(Transport, Socket, BinMsg),
+ StateData0#data{connection_states = ConnectionStates}.
+
+send_application_data(Data, {FromPid, _} = From, StateName,
+ #data{connection_pid = Pid,
+ socket = Socket,
+ negotiated_version = Version,
+ protocol_cb = Connection,
+ transport_cb = Transport,
+ connection_states = ConnectionStates0,
+ renegotiate_at = RenegotiateAt} = StateData0) ->
+ case time_to_renegotiate(Data, ConnectionStates0, RenegotiateAt) of
+ true ->
+ ssl_connection:internal_renegotiation(Pid, ConnectionStates0),
+ {next_state, handshake, StateData0,
+ [{next_event, {call, From}, {application_data, Data}}]};
+ false ->
+ {Msgs, ConnectionStates} =
+ Connection:encode_data(Data, Version, ConnectionStates0),
+ StateData = StateData0#data{connection_states = ConnectionStates},
+ case Connection:send(Transport, Socket, Msgs) of
+ ok when FromPid =:= Pid ->
+ {next_state, StateName, StateData, []};
+ Error when FromPid =:= Pid ->
+ ssl_connection:stop({shutdown, Error}, StateData);
+ ok ->
+ {next_state, StateName, StateData, [{reply, From, ok}]};
+ Result ->
+ {next_state, StateName, StateData, [{reply, From, Result}]}
+ end
+ end.
+
+encode_packet(Data, #socket_options{packet=Packet}) ->
+ case Packet of
+ 1 -> encode_size_packet(Data, 8, (1 bsl 8) - 1);
+ 2 -> encode_size_packet(Data, 16, (1 bsl 16) - 1);
+ 4 -> encode_size_packet(Data, 32, (1 bsl 32) - 1);
+ _ -> Data
+ end.
+
+encode_size_packet(Bin, Size, Max) ->
+ Len = erlang:byte_size(Bin),
+ case Len > Max of
+ true ->
+ {error, {badarg, {packet_to_large, Len, Max}}};
+ false ->
+ <<Len:Size, Bin/binary>>
+ end.
+time_to_renegotiate(_Data,
+ #{current_write := #{sequence_number := Num}},
+ RenegotiateAt) ->
+
+ %% We could do test:
+ %% is_time_to_renegotiate((erlang:byte_size(_Data) div
+ %% ?MAX_PLAIN_TEXT_LENGTH) + 1, RenegotiateAt), but we chose to
+ %% have a some what lower renegotiateAt and a much cheaper test
+ is_time_to_renegotiate(Num, RenegotiateAt).
+
+is_time_to_renegotiate(N, M) when N < M->
+ false;
+is_time_to_renegotiate(_,_) ->
+ true.
+
+call(FsmPid, Event) ->
+ try gen_statem:call(FsmPid, Event)
+ catch
+ exit:{noproc, _} ->
+ {error, closed};
+ exit:{normal, _} ->
+ {error, closed};
+ exit:{{shutdown, _},_} ->
+ {error, closed}
+ end.
diff --git a/lib/ssl/src/tls_socket.erl b/lib/ssl/src/tls_socket.erl
index 154281f1c2..a391bc53de 100644
--- a/lib/ssl/src/tls_socket.erl
+++ b/lib/ssl/src/tls_socket.erl
@@ -64,11 +64,12 @@ accept(ListenSocket, #config{transport_info = {Transport,_,_,_} = CbInfo,
{ok, Socket} ->
{ok, EmOpts} = get_emulated_opts(Tracker),
{ok, Port} = tls_socket:port(Transport, Socket),
- ConnArgs = [server, "localhost", Port, Socket,
+ {ok, Sender} = tls_sender:start(),
+ ConnArgs = [server, Sender, "localhost", Port, Socket,
{SslOpts, emulated_socket_options(EmOpts, #socket_options{}), Tracker}, self(), CbInfo],
case tls_connection_sup:start_child(ConnArgs) of
{ok, Pid} ->
- ssl_connection:socket_control(ConnectionCb, Socket, Pid, Transport, Tracker);
+ ssl_connection:socket_control(ConnectionCb, Socket, [Pid, Sender], Transport, Tracker);
{error, Reason} ->
{error, Reason}
end;
@@ -112,8 +113,8 @@ connect(Address, Port,
{error, {options, {socket_options, UserOpts}}}
end.
-socket(Pid, Transport, Socket, ConnectionCb, Tracker) ->
- #sslsocket{pid = Pid,
+socket(Pids, Transport, Socket, ConnectionCb, Tracker) ->
+ #sslsocket{pid = Pids,
%% "The name "fd" is keept for backwards compatibility
fd = {Transport, Socket, ConnectionCb, Tracker}}.
setopts(gen_tcp, #sslsocket{pid = {ListenSocket, #config{emulated = Tracker}}}, Options) ->