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authorAndreas Schultz <[email protected]>2016-05-04 10:00:51 +0200
committerIngela Anderton Andin <[email protected]>2016-06-13 22:24:13 +0200
commit549a92ed4980f1e87756edea55354de4c9b10856 (patch)
tree9f7bfa4901936a93333da64deb53f4ac28a7dd70 /lib/ssl/src
parent29a54ed880d0481ecf77069442b55994e8d2fe48 (diff)
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dtls: sync init and initial_state with tls_connection
Sync initial_state overall functionality with TLS and add a few DTLS specific initalizers. Conflicts: lib/ssl/src/dtls_connection.erl
Diffstat (limited to 'lib/ssl/src')
-rw-r--r--lib/ssl/src/dtls_connection.erl138
1 files changed, 73 insertions, 65 deletions
diff --git a/lib/ssl/src/dtls_connection.erl b/lib/ssl/src/dtls_connection.erl
index 67490f9f29..cb5db3f4c3 100644
--- a/lib/ssl/src/dtls_connection.erl
+++ b/lib/ssl/src/dtls_connection.erl
@@ -365,6 +365,55 @@ encode_handshake(Handshake, Version, ConnectionStates0, Hist0) ->
Version, ConnectionStates0),
{Encoded, ConnectionStates, Hist}.
+encode_change_cipher(#change_cipher_spec{}, Version, ConnectionStates) ->
+ dtls_record:encode_change_cipher_spec(Version, ConnectionStates).
+
+decode_alerts(Bin) ->
+ ssl_alert:decode(Bin).
+
+initial_state(Role, Host, Port, Socket, {SSLOptions, SocketOptions}, User,
+ {CbModule, DataTag, CloseTag, ErrorTag}) ->
+ #ssl_options{beast_mitigation = BeastMitigation} = SSLOptions,
+ ConnectionStates = ssl_record:init_connection_states(Role, BeastMitigation),
+
+ SessionCacheCb = case application:get_env(ssl, session_cb) of
+ {ok, Cb} when is_atom(Cb) ->
+ Cb;
+ _ ->
+ ssl_session_cache
+ end,
+
+ Monitor = erlang:monitor(process, User),
+
+ #state{socket_options = SocketOptions,
+ %% We do not want to save the password in the state so that
+ %% could be written in the clear into error logs.
+ ssl_options = SSLOptions#ssl_options{password = undefined},
+ session = #session{is_resumable = new},
+ transport_cb = CbModule,
+ data_tag = DataTag,
+ close_tag = CloseTag,
+ error_tag = ErrorTag,
+ role = Role,
+ host = Host,
+ port = Port,
+ socket = Socket,
+ connection_states = ConnectionStates,
+ protocol_buffers = #protocol_buffers{},
+ user_application = {Monitor, User},
+ user_data_buffer = <<>>,
+ session_cache_cb = SessionCacheCb,
+ renegotiation = {false, first},
+ allow_renegotiate = SSLOptions#ssl_options.client_renegotiation,
+ start_or_recv_from = undefined,
+ protocol_cb = ?MODULE
+ }.
+
+next_tls_record(<<>>, _State) ->
+ #alert{}; %% Place holder
+next_tls_record(_, State) ->
+ {#ssl_tls{fragment = <<"place holder">>}, State}.
+
next_record(#state{%%flight = #flight{state = finished},
protocol_buffers =
#protocol_buffers{dtls_packets = [], dtls_cipher_texts = [CT | Rest]}
@@ -382,11 +431,30 @@ next_record(#state{socket = Socket,
transport_cb = Transport} = State) -> %% when FlightState =/= finished
ssl_socket:setopts(Transport, Socket, [{active,once}]),
{no_record, State};
-
-
next_record(State) ->
{no_record, State}.
+next_record_if_active(State =
+ #state{socket_options =
+ #socket_options{active = false}}) ->
+ {no_record ,State};
+
+next_record_if_active(State) ->
+ next_record(State).
+
+passive_receive(State0 = #state{user_data_buffer = Buffer}, StateName) ->
+ case Buffer of
+ <<>> ->
+ {Record, State} = next_record(State0),
+ next_event(StateName, Record, State);
+ _ ->
+ case read_application_data(<<>>, State0) of
+ Stop = {stop, _} ->
+ Stop;
+ {Record, State} ->
+ next_event(StateName, Record, State)
+ end
+ end.
next_event(StateName, Record, State) ->
next_event(StateName, Record, State, []).
@@ -410,13 +478,8 @@ next_event(StateName, Record, State, Actions) ->
{next_state, StateName, State, [{next_event, internal, Alert} | Actions]}
end.
-send_flight(Fragments, #state{transport_cb = Transport, socket = Socket,
- protocol_buffers = _PBuffers} = State) ->
- Transport:send(Socket, Fragments),
- %% Start retransmission
- %% State#state{protocol_buffers =
- %% (PBuffers#protocol_buffers){ #flight{state = waiting}}}}.
- State.
+read_application_data(_,State) ->
+ {#ssl_tls{fragment = <<"place holder">>}, State}.
handle_own_alert(_,_,_, State) -> %% Place holder
{stop, {shutdown, own_alert}, State}.
@@ -424,61 +487,6 @@ handle_own_alert(_,_,_, State) -> %% Place holder
handle_normal_shutdown(_, _, _State) -> %% Place holder
ok.
-encode_change_cipher(#change_cipher_spec{}, Version, ConnectionStates) ->
- dtls_record:encode_change_cipher_spec(Version, ConnectionStates).
-
-initial_state(Role, Host, Port, Socket, {SSLOptions, SocketOptions}, User,
- {CbModule, DataTag, CloseTag, ErrorTag}) ->
- #ssl_options{beast_mitigation = BeastMitigation} = SSLOptions,
- ConnectionStates = ssl_record:init_connection_states(Role, BeastMitigation),
-
- SessionCacheCb = case application:get_env(ssl, session_cb) of
- {ok, Cb} when is_atom(Cb) ->
- Cb;
- _ ->
- ssl_session_cache
- end,
-
- Monitor = erlang:monitor(process, User),
-
- #state{socket_options = SocketOptions,
- %% We do not want to save the password in the state so that
- %% could be written in the clear into error logs.
- ssl_options = SSLOptions#ssl_options{password = undefined},
- session = #session{is_resumable = new},
- transport_cb = CbModule,
- data_tag = DataTag,
- close_tag = CloseTag,
- error_tag = ErrorTag,
- role = Role,
- host = Host,
- port = Port,
- socket = Socket,
- connection_states = ConnectionStates,
- protocol_buffers = #protocol_buffers{},
- user_application = {Monitor, User},
- user_data_buffer = <<>>,
- session_cache_cb = SessionCacheCb,
- renegotiation = {false, first},
- allow_renegotiate = SSLOptions#ssl_options.client_renegotiation,
- start_or_recv_from = undefined,
- protocol_cb = ?MODULE
- }.
-read_application_data(_,State) ->
- {#ssl_tls{fragment = <<"place holder">>}, State}.
-
-next_tls_record(<<>>, _State) ->
- #alert{}; %% Place holder
-next_tls_record(_, State) ->
- {#ssl_tls{fragment = <<"place holder">>}, State}.
-
-sequence(_) ->
+sequence(_) ->
%%TODO real imp
1.
-next_record_if_active(State =
- #state{socket_options =
- #socket_options{active = false}}) ->
- {no_record ,State};
-
-next_record_if_active(State) ->
- next_record(State).