diff options
Diffstat (limited to 'lib/ssl/src/tls_connection.erl')
| -rw-r--r-- | lib/ssl/src/tls_connection.erl | 226 |
1 files changed, 205 insertions, 21 deletions
diff --git a/lib/ssl/src/tls_connection.erl b/lib/ssl/src/tls_connection.erl index 4dfb50967d..29988edf76 100644 --- a/lib/ssl/src/tls_connection.erl +++ b/lib/ssl/src/tls_connection.erl @@ -38,7 +38,8 @@ -include("ssl_api.hrl"). -include("ssl_internal.hrl"). -include("ssl_srp.hrl"). --include_lib("public_key/include/public_key.hrl"). +-include_lib("public_key/include/public_key.hrl"). +-include_lib("kernel/include/logger.hrl"). %% Internal application API @@ -68,6 +69,22 @@ -export([init/3, error/3, downgrade/3, %% Initiation and take down states hello/3, user_hello/3, certify/3, cipher/3, abbreviated/3, %% Handshake states connection/3]). +%% TLS 1.3 state functions (server) +-export([start/3, %% common state with client + negotiated/3, + recvd_ch/3, + wait_cert/3, %% common state with client + wait_cv/3, %% common state with client + wait_eoed/3, + wait_finished/3, %% common state with client + wait_flight2/3, + connected/3 %% common state with client + ]). +%% TLS 1.3 state functions (client) +-export([wait_cert_cr/3, + wait_ee/3, + wait_sh/3 + ]). %% gen_statem callbacks -export([callback_mode/0, terminate/3, code_change/4, format_status/2]). @@ -151,8 +168,10 @@ next_record(#state{protocol_buffers = #protocol_buffers{tls_packets = [], tls_cipher_texts = [CT | Rest]} = Buffers, connection_states = ConnStates0, + negotiated_version = Version, ssl_options = #ssl_options{padding_check = Check}} = State) -> - case tls_record:decode_cipher_text(CT, ConnStates0, Check) of + + case tls_record:decode_cipher_text(Version, CT, ConnStates0, Check) of {Plain, ConnStates} -> {Plain, State#state{protocol_buffers = Buffers#protocol_buffers{tls_cipher_texts = Rest}, @@ -289,9 +308,19 @@ send_handshake(Handshake, State) -> queue_handshake(Handshake, #state{negotiated_version = Version, tls_handshake_history = Hist0, flight_buffer = Flight0, - connection_states = ConnectionStates0} = State0) -> + connection_states = ConnectionStates0, + ssl_options = SslOpts} = State0) -> {BinHandshake, ConnectionStates, Hist} = encode_handshake(Handshake, Version, ConnectionStates0, Hist0), + Report = #{direction => outbound, + protocol => 'tls_record', + message => BinHandshake}, + HandshakeMsg = #{direction => outbound, + protocol => 'handshake', + message => Handshake}, + ssl_logger:debug(SslOpts#ssl_options.log_level, HandshakeMsg, #{domain => [otp,ssl,handshake]}), + ssl_logger:debug(SslOpts#ssl_options.log_level, Report, #{domain => [otp,ssl,tls_record]}), + State0#state{connection_states = ConnectionStates, tls_handshake_history = Hist, flight_buffer = Flight0 ++ [BinHandshake]}. @@ -303,10 +332,15 @@ send_handshake_flight(#state{socket = Socket, {State0#state{flight_buffer = []}, []}. queue_change_cipher(Msg, #state{negotiated_version = Version, - flight_buffer = Flight0, - connection_states = ConnectionStates0} = State0) -> + flight_buffer = Flight0, + connection_states = ConnectionStates0, + ssl_options = SslOpts} = State0) -> {BinChangeCipher, ConnectionStates} = encode_change_cipher(Msg, Version, ConnectionStates0), + Report = #{direction => outbound, + protocol => 'tls_record', + message => BinChangeCipher}, + ssl_logger:debug(SslOpts#ssl_options.log_level, Report, #{domain => [otp,ssl,tls_record]}), State0#state{connection_states = ConnectionStates, flight_buffer = Flight0 ++ [BinChangeCipher]}. @@ -326,8 +360,8 @@ reinit_handshake_data(State) -> tls_handshake_history = ssl_handshake:init_handshake_history() }. -select_sni_extension(#client_hello{extensions = HelloExtensions}) -> - HelloExtensions#hello_extensions.sni; +select_sni_extension(#client_hello{extensions = #{sni := SNI}}) -> + SNI; select_sni_extension(_) -> undefined. @@ -337,6 +371,7 @@ empty_connection_state(ConnectionEnd, BeastMitigation) -> %%==================================================================== %% Alert and close handling %%==================================================================== + %%-------------------------------------------------------------------- -spec encode_alert(#alert{}, ssl_record:ssl_version(), ssl_record:connection_states()) -> {iolist(), ssl_record:connection_states()}. @@ -349,10 +384,14 @@ encode_alert(#alert{} = Alert, Version, ConnectionStates) -> send_alert(Alert, #state{negotiated_version = Version, socket = Socket, transport_cb = Transport, - connection_states = ConnectionStates0} = StateData0) -> - {BinMsg, ConnectionStates} = - encode_alert(Alert, Version, ConnectionStates0), + connection_states = ConnectionStates0, + ssl_options = SslOpts} = StateData0) -> + {BinMsg, ConnectionStates} = encode_alert(Alert, Version, ConnectionStates0), send(Transport, Socket, BinMsg), + Report = #{direction => outbound, + protocol => 'tls_record', + message => BinMsg}, + ssl_logger:debug(SslOpts#ssl_options.log_level, Report, #{domain => [otp,ssl,tls_record]}), StateData0#state{connection_states = ConnectionStates}. %% If an ALERT sent in the connection state, should cause the TLS @@ -469,6 +508,14 @@ init({call, From}, {start, Timeout}, {BinMsg, ConnectionStates, Handshake} = encode_handshake(Hello, HelloVersion, ConnectionStates0, Handshake0), send(Transport, Socket, BinMsg), + Report = #{direction => outbound, + protocol => 'tls_record', + message => BinMsg}, + HelloMsg = #{direction => outbound, + protocol => 'handshake', + message => Hello}, + ssl_logger:debug(SslOpts#ssl_options.log_level, HelloMsg, #{domain => [otp,ssl,handshake]}), + ssl_logger:debug(SslOpts#ssl_options.log_level, Report, #{domain => [otp,ssl,tls_record]}), State1 = State0#state{connection_states = ConnectionStates, negotiated_version = Version, %% Requested version session = @@ -506,13 +553,13 @@ hello(internal, #client_hello{extensions = Extensions} = 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)}}]}; + [{reply, From, {ok, Extensions}}]}; 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}, - [{reply, From, {ok, ssl_connection:map_extensions(Extensions)}}]}; + [{reply, From, {ok, Extensions}}]}; hello(internal, #client_hello{client_version = ClientVersion} = Hello, #state{connection_states = ConnectionStates0, port = Port, session = #session{own_certificate = Cert} = Session0, @@ -529,7 +576,7 @@ hello(internal, #client_hello{client_version = ClientVersion} = Hello, State#state{negotiated_version = ClientVersion}); {Version, {Type, Session}, - ConnectionStates, Protocol0, ServerHelloExt, HashSign} -> + ConnectionStates, Protocol0, ServerHelloExt, HashSign} when Version < {3,4} -> Protocol = case Protocol0 of undefined -> CurrentProtocol; _ -> Protocol0 @@ -540,7 +587,23 @@ hello(internal, #client_hello{client_version = ClientVersion} = Hello, hashsign_algorithm = HashSign, client_hello_version = ClientVersion, session = Session, - negotiated_protocol = Protocol}) + negotiated_protocol = Protocol}); + %% TLS 1.3 + {Version, {Type, Session}, + ConnectionStates, Protocol0, ServerHelloExt, HashSign} -> + Protocol = case Protocol0 of + undefined -> CurrentProtocol; + _ -> Protocol0 + end, + tls_connection_1_3:gen_handshake(?FUNCTION_NAME, + internal, + {common_client_hello, Type, ServerHelloExt}, + State#state{connection_states = ConnectionStates, + negotiated_version = Version, + hashsign_algorithm = HashSign, + client_hello_version = ClientVersion, + session = Session, + negotiated_protocol = Protocol}) end; hello(internal, #server_hello{} = Hello, #state{connection_states = ConnectionStates0, @@ -652,6 +715,117 @@ connection(Type, Event, State) -> downgrade(Type, Event, State) -> ssl_connection:?FUNCTION_NAME(Type, Event, State, ?MODULE). +%%-------------------------------------------------------------------- +%% TLS 1.3 state functions +%%-------------------------------------------------------------------- +%%-------------------------------------------------------------------- +-spec start(gen_statem:event_type(), term(), #state{}) -> + gen_statem:state_function_result(). +%%-------------------------------------------------------------------- +start(info, Event, State) -> + gen_info(Event, ?FUNCTION_NAME, State); +start(Type, Event, State) -> + gen_handshake(?FUNCTION_NAME, Type, Event, State). + +%%-------------------------------------------------------------------- +-spec negotiated(gen_statem:event_type(), term(), #state{}) -> + gen_statem:state_function_result(). +%%-------------------------------------------------------------------- +negotiated(info, Event, State) -> + gen_info(Event, ?FUNCTION_NAME, State); +negotiated(Type, Event, State) -> + gen_handshake(?FUNCTION_NAME, Type, Event, State). + +%%-------------------------------------------------------------------- +-spec recvd_ch(gen_statem:event_type(), term(), #state{}) -> + gen_statem:state_function_result(). +%%-------------------------------------------------------------------- +recvd_ch(info, Event, State) -> + gen_info(Event, ?FUNCTION_NAME, State); +recvd_ch(Type, Event, State) -> + gen_handshake(?FUNCTION_NAME, Type, Event, State). + +%%-------------------------------------------------------------------- +-spec wait_cert(gen_statem:event_type(), term(), #state{}) -> + gen_statem:state_function_result(). +%%-------------------------------------------------------------------- +wait_cert(info, Event, State) -> + gen_info(Event, ?FUNCTION_NAME, State); +wait_cert(Type, Event, State) -> + gen_handshake(?FUNCTION_NAME, Type, Event, State). + +%%-------------------------------------------------------------------- +-spec wait_cv(gen_statem:event_type(), term(), #state{}) -> + gen_statem:state_function_result(). +%%-------------------------------------------------------------------- +wait_cv(info, Event, State) -> + gen_info(Event, ?FUNCTION_NAME, State); +wait_cv(Type, Event, State) -> + gen_handshake(?FUNCTION_NAME, Type, Event, State). + +%%-------------------------------------------------------------------- +-spec wait_eoed(gen_statem:event_type(), term(), #state{}) -> + gen_statem:state_function_result(). +%%-------------------------------------------------------------------- +wait_eoed(info, Event, State) -> + gen_info(Event, ?FUNCTION_NAME, State); +wait_eoed(Type, Event, State) -> + gen_handshake(?FUNCTION_NAME, Type, Event, State). + +%%-------------------------------------------------------------------- +-spec wait_finished(gen_statem:event_type(), term(), #state{}) -> + gen_statem:state_function_result(). +%%-------------------------------------------------------------------- +wait_finished(info, Event, State) -> + gen_info(Event, ?FUNCTION_NAME, State); +wait_finished(Type, Event, State) -> + gen_handshake(?FUNCTION_NAME, Type, Event, State). + +%%-------------------------------------------------------------------- +-spec wait_flight2(gen_statem:event_type(), term(), #state{}) -> + gen_statem:state_function_result(). +%%-------------------------------------------------------------------- +wait_flight2(info, Event, State) -> + gen_info(Event, ?FUNCTION_NAME, State); +wait_flight2(Type, Event, State) -> + gen_handshake(?FUNCTION_NAME, Type, Event, State). + +%%-------------------------------------------------------------------- +-spec connected(gen_statem:event_type(), term(), #state{}) -> + gen_statem:state_function_result(). +%%-------------------------------------------------------------------- +connected(info, Event, State) -> + gen_info(Event, ?FUNCTION_NAME, State); +connected(Type, Event, State) -> + gen_handshake(?FUNCTION_NAME, Type, Event, State). + +%%-------------------------------------------------------------------- +-spec wait_cert_cr(gen_statem:event_type(), term(), #state{}) -> + gen_statem:state_function_result(). +%%-------------------------------------------------------------------- +wait_cert_cr(info, Event, State) -> + gen_info(Event, ?FUNCTION_NAME, State); +wait_cert_cr(Type, Event, State) -> + gen_handshake(?FUNCTION_NAME, Type, Event, State). + +%%-------------------------------------------------------------------- +-spec wait_ee(gen_statem:event_type(), term(), #state{}) -> + gen_statem:state_function_result(). +%%-------------------------------------------------------------------- +wait_ee(info, Event, State) -> + gen_info(Event, ?FUNCTION_NAME, State); +wait_ee(Type, Event, State) -> + gen_handshake(?FUNCTION_NAME, Type, Event, State). + +%%-------------------------------------------------------------------- +-spec wait_sh(gen_statem:event_type(), term(), #state{}) -> + gen_statem:state_function_result(). +%%-------------------------------------------------------------------- +wait_sh(info, Event, State) -> + gen_info(Event, ?FUNCTION_NAME, State); +wait_sh(Type, Event, State) -> + gen_handshake(?FUNCTION_NAME, Type, Event, State). + %-------------------------------------------------------------------- %% gen_statem callbacks %%-------------------------------------------------------------------- @@ -726,7 +900,8 @@ initialize_tls_sender(#state{role = Role, protocol_cb = Connection, transport_cb = Transport, negotiated_version = Version, - ssl_options = #ssl_options{renegotiate_at = RenegotiateAt}, + ssl_options = #ssl_options{renegotiate_at = RenegotiateAt, + log_level = LogLevel}, connection_states = #{current_write := ConnectionWriteState}, protocol_specific = #{sender := Sender}}) -> Init = #{current_write => ConnectionWriteState, @@ -737,16 +912,17 @@ initialize_tls_sender(#state{role = Role, protocol_cb => Connection, transport_cb => Transport, negotiated_version => Version, - renegotiate_at => RenegotiateAt}, + renegotiate_at => RenegotiateAt, + log_level => LogLevel}, tls_sender:initialize(Sender, Init). next_tls_record(Data, StateName, #state{protocol_buffers = #protocol_buffers{tls_record_buffer = Buf0, - tls_cipher_texts = CT0} = Buffers} - = State0) -> - case tls_record:get_tls_records(Data, + tls_cipher_texts = CT0} = Buffers, + ssl_options = SslOpts} = State0) -> + case tls_record:get_tls_records(Data, acceptable_record_versions(StateName, State0), - Buf0) of + Buf0, SslOpts) of {Records, Buf1} -> CT1 = CT0 ++ Records, next_record(State0#state{protocol_buffers = @@ -757,10 +933,18 @@ next_tls_record(Data, StateName, #state{protocol_buffers = end. +%% TLS 1.3 Client/Server +%% - Ignore TLSPlaintext.legacy_record_version +%% - Verify that TLSCiphertext.legacy_record_version is set to 0x0303 for all records +%% other than an initial ClientHello, where it MAY also be 0x0301. acceptable_record_versions(hello, _) -> - [tls_record:protocol_version(Vsn) || Vsn <- ?ALL_AVAILABLE_VERSIONS]; + [tls_record:protocol_version(Vsn) || Vsn <- ?ALL_TLS_RECORD_VERSIONS]; +acceptable_record_versions(_, #state{negotiated_version = {Major, Minor}}) + when Major > 3; Major =:= 3, Minor >= 4 -> + [{3, 3}]; acceptable_record_versions(_, #state{negotiated_version = Version}) -> [Version]. + handle_record_alert(Alert, _) -> Alert. |