diff options
Diffstat (limited to 'lib/ssl/src/ssl_connection.erl')
| -rw-r--r-- | lib/ssl/src/ssl_connection.erl | 110 |
1 files changed, 91 insertions, 19 deletions
diff --git a/lib/ssl/src/ssl_connection.erl b/lib/ssl/src/ssl_connection.erl index 6b3a403f0e..f816979b9f 100644 --- a/lib/ssl/src/ssl_connection.erl +++ b/lib/ssl/src/ssl_connection.erl @@ -38,7 +38,7 @@ %% Setup --export([connect/8, handshake/7, handshake/2, handshake/3, hello/3, +-export([connect/8, handshake/7, handshake/2, handshake/3, handshake_continue/3, handshake_cancel/1, socket_control/4, socket_control/5, start_or_recv_cancel_timer/2]). @@ -59,11 +59,11 @@ %% Help functions for tls|dtls_connection.erl -export([handle_session/7, ssl_config/3, - prepare_connection/2, hibernate_after/3]). + prepare_connection/2, hibernate_after/3, map_extensions/1]). %% General gen_statem state functions with extra callback argument %% to determine if it is an SSL/TLS or DTLS gen_statem machine --export([init/4, error/4, hello/4, abbreviated/4, certify/4, cipher/4, +-export([init/4, error/4, hello/4, user_hello/4, abbreviated/4, certify/4, cipher/4, connection/4, death_row/4, downgrade/4]). %% gen_statem callbacks @@ -113,7 +113,8 @@ handshake(Connection, Port, Socket, Opts, User, CbInfo, Timeout) -> end. %%-------------------------------------------------------------------- --spec handshake(#sslsocket{}, timeout()) -> {ok, #sslsocket{}} | {error, reason()}. +-spec handshake(#sslsocket{}, timeout()) -> {ok, #sslsocket{}} | + {ok, #sslsocket{}, map()}| {error, reason()}. %% %% Description: Starts ssl handshake. %%-------------------------------------------------------------------- @@ -121,6 +122,8 @@ handshake(#sslsocket{pid = Pid} = Socket, Timeout) -> case call(Pid, {start, Timeout}) of connected -> {ok, Socket}; + {ok, Ext} -> + {ok, Socket, Ext}; Error -> Error end. @@ -139,6 +142,31 @@ handshake(#sslsocket{pid = Pid} = Socket, SslOptions, Timeout) -> Error end. +%%-------------------------------------------------------------------- +-spec handshake_continue(#sslsocket{}, [ssl_option()], + timeout()) -> {ok, #sslsocket{}}| {error, reason()}. +%% +%% Description: Continues handshake with new options +%%-------------------------------------------------------------------- +handshake_continue(#sslsocket{pid = Pid} = Socket, SslOptions, Timeout) -> + case call(Pid, {handshake_continue, SslOptions, Timeout}) of + connected -> + {ok, Socket}; + Error -> + Error + end. +%%-------------------------------------------------------------------- +-spec handshake_cancel(#sslsocket{}) -> ok | {error, reason()}. +%% +%% Description: Cancels connection +%%-------------------------------------------------------------------- +handshake_cancel(#sslsocket{pid = Pid}) -> + case call(Pid, cancel) of + closed -> + ok; + Error -> + Error + end. %-------------------------------------------------------------------- -spec socket_control(tls_connection | dtls_connection, port(), pid(), atom()) -> {ok, #sslsocket{}} | {error, reason()}. @@ -529,6 +557,9 @@ handle_session(#server_hello{cipher_suite = CipherSuite, -spec ssl_config(#ssl_options{}, client | server, #state{}) -> #state{}. %%-------------------------------------------------------------------- ssl_config(Opts, Role, State) -> + ssl_config(Opts, Role, State, new). + +ssl_config(Opts, Role, State0, Type) -> {ok, #{cert_db_ref := Ref, cert_db_handle := CertDbHandle, fileref_db_handle := FileRefHandle, @@ -538,20 +569,26 @@ ssl_config(Opts, Role, State) -> dh_params := DHParams, own_certificate := OwnCert}} = ssl_config:init(Opts, Role), - Handshake = ssl_handshake:init_handshake_history(), TimeStamp = erlang:monotonic_time(), - Session = State#state.session, - State#state{tls_handshake_history = Handshake, - session = Session#session{own_certificate = OwnCert, - time_stamp = TimeStamp}, - file_ref_db = FileRefHandle, - cert_db_ref = Ref, - cert_db = CertDbHandle, - crl_db = CRLDbHandle, - session_cache = CacheHandle, - private_key = Key, - diffie_hellman_params = DHParams, - ssl_options = Opts}. + Session = State0#state.session, + State = State0#state{session = Session#session{own_certificate = OwnCert, + time_stamp = TimeStamp}, + file_ref_db = FileRefHandle, + cert_db_ref = Ref, + cert_db = CertDbHandle, + crl_db = CRLDbHandle, + session_cache = CacheHandle, + private_key = Key, + diffie_hellman_params = DHParams, + ssl_options = Opts}, + case Type of + new -> + Handshake = ssl_handshake:init_handshake_history(), + State#state{tls_handshake_history = Handshake}; + continue -> + State + end. + %%==================================================================== %% gen_statem general state functions with connection cb argument @@ -581,7 +618,8 @@ init({call, From}, {start, {Opts, EmOpts}, Timeout}, end, State = ssl_config(SslOpts, Role, State0), init({call, From}, {start, Timeout}, - State#state{ssl_options = SslOpts, socket_options = new_emulated(EmOpts, SockOpts)}, Connection) + State#state{ssl_options = SslOpts, + socket_options = new_emulated(EmOpts, SockOpts)}, Connection) catch throw:Error -> stop_and_reply(normal, {reply, From, {error, Error}}, State0) end; @@ -614,6 +652,23 @@ hello(info, Msg, State, _) -> hello(Type, Msg, State, Connection) -> handle_common_event(Type, Msg, ?FUNCTION_NAME, State, Connection). +user_hello({call, From}, cancel, #state{negotiated_version = Version} = State, _) -> + gen_statem:reply(From, ok), + handle_own_alert(?ALERT_REC(?FATAL, ?USER_CANCELED, user_canceled), + Version, ?FUNCTION_NAME, State); +user_hello({call, From}, {handshake_continue, NewOptions, Timeout}, #state{hello = Hello, + role = Role, + start_or_recv_from = RecvFrom, + ssl_options = Options0} = State0, _Connection) -> + Timer = start_or_recv_cancel_timer(Timeout, RecvFrom), + Options = ssl:handle_options(NewOptions, Options0#ssl_options{handshake = full}), + State = ssl_config(Options, Role, State0, continue), + {next_state, hello, State#state{start_or_recv_from = From, + timer = Timer}, + [{next_event, internal, Hello}]}; +user_hello(_, _, _, _) -> + {keep_state_and_data, [postpone]}. + %%-------------------------------------------------------------------- -spec abbreviated(gen_statem:event_type(), #hello_request{} | #finished{} | term(), @@ -2287,7 +2342,24 @@ hibernate_after(connection = StateName, {next_state, StateName, State, [{timeout, HibernateAfter, hibernate} | Actions]}; hibernate_after(StateName, State, Actions) -> {next_state, StateName, State, Actions}. - + +map_extensions(#hello_extensions{renegotiation_info = RenegotiationInfo, + signature_algs = SigAlg, + alpn = Alpn, + next_protocol_negotiation = Next, + srp = SRP, + ec_point_formats = ECPointFmt, + elliptic_curves = ECCCurves, + sni = SNI}) -> + #{renegotiation_info => ssl_handshake:extension_value(RenegotiationInfo), + signature_algs => ssl_handshake:extension_value(SigAlg), + alpn => ssl_handshake:extension_value(Alpn), + srp => ssl_handshake:extension_value(SRP), + next_protocol => ssl_handshake:extension_value(Next), + ec_point_formats => ssl_handshake:extension_value(ECPointFmt), + 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); 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