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-rw-r--r--lib/ssl/src/dtls_connection.erl87
-rw-r--r--lib/ssl/src/ssl_connection.erl4
-rw-r--r--lib/ssl/src/tls_connection.erl4
3 files changed, 72 insertions, 23 deletions
diff --git a/lib/ssl/src/dtls_connection.erl b/lib/ssl/src/dtls_connection.erl
index 74be0039f4..22abb5da02 100644
--- a/lib/ssl/src/dtls_connection.erl
+++ b/lib/ssl/src/dtls_connection.erl
@@ -47,17 +47,12 @@
send_handshake/2, queue_handshake/2, queue_change_cipher/2]).
%% Alert and close handling
--export([%%send_alert/2, handle_own_alert/4, handle_close_alert/3,
- handle_normal_shutdown/3 %%, close/5
- %%alert_user/6, alert_user/9
- ]).
+%%-export([%%send_alert/2, close/5]).
%% Data handling
--export([%%write_application_data/3,
- read_application_data/2,
- passive_receive/2, next_record_if_active/1%,
- %%handle_common_event/4,
+-export([passive_receive/2, next_record_if_active/1, handle_common_event/4
+ ]).
%% gen_statem state functions
-export([init/3, error/3, downgrade/3, %% Initiation and take down states
@@ -370,6 +365,51 @@ handle_info(Msg, StateName, State) ->
handle_call(Event, From, StateName, State) ->
ssl_connection:handle_call(Event, From, StateName, State, ?MODULE).
+handle_common_event(internal, #alert{} = Alert, StateName,
+ #state{negotiated_version = Version} = State) ->
+ ssl_connection:handle_own_alert(Alert, Version, StateName, State);
+
+%%% DTLS record protocol level handshake messages
+handle_common_event(internal, #ssl_tls{type = ?HANDSHAKE} = Record,
+ StateName,
+ #state{protocol_buffers =
+ #protocol_buffers{dtls_packets = Packets0,
+ dtls_fragment_state = HsState0} = Buffers,
+ negotiated_version = Version} = State0) ->
+ try
+ {Packets1, HsState} = dtls_handshake:get_dtls_handshake(Record, HsState0),
+ State =
+ State0#state{protocol_buffers =
+ Buffers#protocol_buffers{dtls_fragment_state = HsState}},
+ Events = dtls_handshake_events(Packets0 ++ Packets1),
+ case StateName of
+ connection ->
+ ssl_connection:hibernate_after(StateName, State, Events);
+ _ ->
+ {next_state, StateName, State, Events}
+ end
+ catch throw:#alert{} = Alert ->
+ ssl_connection:handle_own_alert(Alert, Version, StateName, State0)
+ end;
+%%% DTLS record protocol level application data messages
+handle_common_event(internal, #ssl_tls{type = ?APPLICATION_DATA, fragment = Data}, StateName, State) ->
+ {next_state, StateName, State, [{next_event, internal, {application_data, Data}}]};
+%%% DTLS record protocol level change cipher messages
+handle_common_event(internal, #ssl_tls{type = ?CHANGE_CIPHER_SPEC, fragment = Data}, StateName, State) ->
+ {next_state, StateName, State, [{next_event, internal, #change_cipher_spec{type = Data}}]};
+%%% DTLS record protocol level Alert messages
+handle_common_event(internal, #ssl_tls{type = ?ALERT, fragment = EncAlerts}, StateName,
+ #state{negotiated_version = Version} = State) ->
+ case decode_alerts(EncAlerts) of
+ Alerts = [_|_] ->
+ handle_alerts(Alerts, {next_state, StateName, State});
+ #alert{} = Alert ->
+ ssl_connection:handle_own_alert(Alert, Version, StateName, State)
+ end;
+%% Ignore unknown TLS record level protocol messages
+handle_common_event(internal, #ssl_tls{type = _Unknown}, StateName, State) ->
+ {next_state, StateName, State}.
+
%%--------------------------------------------------------------------
%% Description:This function is called by a gen_fsm when it is about
%% to terminate. It should be the opposite of Module:init/1 and do any
@@ -392,6 +432,15 @@ format_status(Type, Data) ->
%%--------------------------------------------------------------------
%%% Internal functions
%%--------------------------------------------------------------------
+
+dtls_handshake_events([]) ->
+ throw(?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, malformed_handshake));
+dtls_handshake_events(Packets) ->
+ lists:map(fun(Packet) ->
+ {next_event, internal, {handshake, Packet}}
+ end, Packets).
+
+
encode_handshake(Handshake, Version, ConnectionStates0, Hist0) ->
{Seq, ConnectionStates} = sequence(ConnectionStates0),
{EncHandshake, Frag} = dtls_handshake:encode_handshake(Handshake, Version, Seq),
@@ -570,7 +619,7 @@ next_event(connection = StateName, no_record, State0, Actions) ->
{no_record, State} ->
ssl_connection:hibernate_after(StateName, State, Actions);
{#ssl_tls{} = Record, State} ->
- {next_state, StateName, State, [{next_event, internal, {dtls_record, Record}} | Actions]};
+ {next_state, StateName, State, [{next_event, internal, {protocol_record, Record}} | Actions]};
{#alert{} = Alert, State} ->
{next_state, StateName, State, [{next_event, internal, Alert} | Actions]}
end;
@@ -579,20 +628,11 @@ next_event(StateName, Record, State, Actions) ->
no_record ->
{next_state, StateName, State, Actions};
#ssl_tls{} = Record ->
- {next_state, StateName, State, [{next_event, internal, {dtls_record, Record}} | Actions]};
+ {next_state, StateName, State, [{next_event, internal, {protocol_record, Record}} | Actions]};
#alert{} = Alert ->
{next_state, StateName, State, [{next_event, internal, Alert} | Actions]}
end.
-read_application_data(_,State) ->
- {#ssl_tls{fragment = <<"place holder">>}, State}.
-
-handle_own_alert(_,_,_, State) -> %% Place holder
- {stop, {shutdown, own_alert}, State}.
-
-handle_normal_shutdown(_, _, _State) -> %% Place holder
- ok.
-
%% TODO This generates dialyzer warnings, has to be handled differently.
%% handle_packet(Address, Port, Packet) ->
%% try dtls_record:get_dtls_records(Packet, <<>>) of
@@ -643,3 +683,12 @@ handle_normal_shutdown(_, _, _State) -> %% Place holder
sequence(#connection_states{dtls_write_msg_seq = Seq} = CS) ->
{Seq, CS#connection_states{dtls_write_msg_seq = Seq + 1}}.
+
+handle_alerts([], Result) ->
+ Result;
+handle_alerts(_, {stop,_} = Stop) ->
+ Stop;
+handle_alerts([Alert | Alerts], {next_state, StateName, State}) ->
+ handle_alerts(Alerts, ssl_connection:handle_alert(Alert, StateName, State));
+handle_alerts([Alert | Alerts], {next_state, StateName, State, _Actions}) ->
+ handle_alerts(Alerts, ssl_connection:handle_alert(Alert, StateName, State)).
diff --git a/lib/ssl/src/ssl_connection.erl b/lib/ssl/src/ssl_connection.erl
index 8ac9fd8270..3fe64ea6b0 100644
--- a/lib/ssl/src/ssl_connection.erl
+++ b/lib/ssl/src/ssl_connection.erl
@@ -820,8 +820,8 @@ handle_common_event(internal, {handshake, {Handshake, Raw}}, StateName,
HsHist = ssl_handshake:update_handshake_history(Hs0, Raw, V2HComp),
{next_state, StateName, State#state{tls_handshake_history = HsHist},
[{next_event, internal, Handshake}]};
-handle_common_event(internal, {tls_record, TLSRecord}, StateName, State, Connection) ->
- Connection:handle_common_event(internal, TLSRecord, StateName, State);
+handle_common_event(internal, {protocol_record, TLSorDTLSRecord}, StateName, State, Connection) ->
+ Connection:handle_common_event(internal, TLSorDTLSRecord, StateName, State);
handle_common_event(timeout, hibernate, _, _, _) ->
{keep_state_and_data, [hibernate]};
handle_common_event(internal, {application_data, Data}, StateName, State0, Connection) ->
diff --git a/lib/ssl/src/tls_connection.erl b/lib/ssl/src/tls_connection.erl
index 70563096b7..7e02021dae 100644
--- a/lib/ssl/src/tls_connection.erl
+++ b/lib/ssl/src/tls_connection.erl
@@ -597,7 +597,7 @@ next_event(connection = StateName, no_record, State0, Actions) ->
{no_record, State} ->
ssl_connection:hibernate_after(StateName, State, Actions);
{#ssl_tls{} = Record, State} ->
- {next_state, StateName, State, [{next_event, internal, {tls_record, Record}} | Actions]};
+ {next_state, StateName, State, [{next_event, internal, {protocol_record, Record}} | Actions]};
{#alert{} = Alert, State} ->
{next_state, StateName, State, [{next_event, internal, Alert} | Actions]}
end;
@@ -606,7 +606,7 @@ next_event(StateName, Record, State, Actions) ->
no_record ->
{next_state, StateName, State, Actions};
#ssl_tls{} = Record ->
- {next_state, StateName, State, [{next_event, internal, {tls_record, Record}} | Actions]};
+ {next_state, StateName, State, [{next_event, internal, {protocol_record, Record}} | Actions]};
#alert{} = Alert ->
{next_state, StateName, State, [{next_event, internal, Alert} | Actions]}
end.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-08 09:28:23 +0000