diff options
Diffstat (limited to 'lib/ssl/src/ssl_connection.erl')
| -rw-r--r-- | lib/ssl/src/ssl_connection.erl | 194 |
1 files changed, 115 insertions, 79 deletions
diff --git a/lib/ssl/src/ssl_connection.erl b/lib/ssl/src/ssl_connection.erl index 5b754c16bc..0f0072ba34 100644 --- a/lib/ssl/src/ssl_connection.erl +++ b/lib/ssl/src/ssl_connection.erl @@ -41,7 +41,7 @@ socket_control/4, socket_control/5]). %% User Events --export([send/2, recv/3, close/1, shutdown/2, +-export([send/2, recv/3, close/2, shutdown/2, new_user/2, get_opts/2, set_opts/2, session_info/1, peer_certificate/1, renegotiation/1, negotiated_protocol/1, prf/5, connection_information/1 @@ -171,18 +171,19 @@ connection_information(Pid) when is_pid(Pid) -> sync_send_all_state_event(Pid, connection_information). %%-------------------------------------------------------------------- --spec close(pid()) -> ok | {error, reason()}. +-spec close(pid(), {close, Timeout::integer() | + {NewController::pid(), Timeout::integer()}}) -> + ok | {ok, port()} | {error, reason()}. %% %% Description: Close an ssl connection %%-------------------------------------------------------------------- -close(ConnectionPid) -> - case sync_send_all_state_event(ConnectionPid, close) of +close(ConnectionPid, How) -> + case sync_send_all_state_event(ConnectionPid, How) of {error, closed} -> ok; Other -> Other end. - %%-------------------------------------------------------------------- -spec shutdown(pid(), atom()) -> ok | {error, reason()}. %% @@ -303,13 +304,9 @@ hello(#hello_request{}, #state{role = client} = State0, Connection) -> {Record, State} = Connection:next_record(State0), Connection:next_state(hello, hello, Record, State); -hello({common_client_hello, Type, ServerHelloExt, NegotiatedHashSign}, +hello({common_client_hello, Type, ServerHelloExt}, State, Connection) -> - do_server_hello(Type, ServerHelloExt, - %% Note NegotiatedHashSign is only negotiated for real if - %% if TLS version is at least TLS-1.2 - State#state{hashsign_algorithm = NegotiatedHashSign}, Connection); - + do_server_hello(Type, ServerHelloExt, State, Connection); hello(timeout, State, _) -> {next_state, hello, State, hibernate}; @@ -441,7 +438,8 @@ certify(#server_key_exchange{exchange_keys = Keys}, Alg == srp_dss; Alg == srp_rsa; Alg == srp_anon -> Params = ssl_handshake:decode_server_key(Keys, Alg, Version), - HashSign = negotiated_hashsign(Params#server_key_params.hashsign, Alg, Version), + %% Use negotiated value if TLS-1.2 otherwhise return default + HashSign = negotiated_hashsign(Params#server_key_params.hashsign, Alg, PubKeyInfo, Version), case is_anonymous(Alg) of true -> calculate_secret(Params#server_key_params.params, @@ -463,11 +461,18 @@ certify(#server_key_exchange{} = Msg, certify(#certificate_request{hashsign_algorithms = HashSigns}, #state{session = #session{own_certificate = Cert}, - negotiated_version = Version} = State0, Connection) -> - HashSign = ssl_handshake:select_hashsign(HashSigns, Cert, Version), - {Record, State} = Connection:next_record(State0#state{client_certificate_requested = true}), - Connection:next_state(certify, certify, Record, - State#state{cert_hashsign_algorithm = HashSign}); + key_algorithm = KeyExAlg, + ssl_options = #ssl_options{signature_algs = SupportedHashSigns}, + negotiated_version = Version} = State0, Connection) -> + + case ssl_handshake:select_hashsign(HashSigns, Cert, KeyExAlg, SupportedHashSigns, Version) of + #alert {} = Alert -> + Connection:handle_own_alert(Alert, Version, certify, State0); + NegotiatedHashSign -> + {Record, State} = Connection:next_record(State0#state{client_certificate_requested = true}), + Connection:next_state(certify, certify, Record, + State#state{cert_hashsign_algorithm = NegotiatedHashSign}) + end; %% PSK and RSA_PSK might bypass the Server-Key-Exchange certify(#server_hello_done{}, @@ -575,13 +580,15 @@ cipher(#hello_request{}, State0, Connection) -> cipher(#certificate_verify{signature = Signature, hashsign_algorithm = CertHashSign}, #state{role = server, - public_key_info = {Algo, _, _} =PublicKeyInfo, + key_algorithm = KexAlg, + public_key_info = PublicKeyInfo, negotiated_version = Version, session = #session{master_secret = MasterSecret}, tls_handshake_history = Handshake } = State0, Connection) -> - - HashSign = ssl_handshake:select_hashsign_algs(CertHashSign, Algo, Version), + + %% Use negotiated value if TLS-1.2 otherwhise return default + HashSign = negotiated_hashsign(CertHashSign, KexAlg, PublicKeyInfo, Version), case ssl_handshake:certificate_verify(Signature, PublicKeyInfo, Version, HashSign, MasterSecret, Handshake) of valid -> @@ -706,12 +713,12 @@ handle_sync_event({start, Timeout}, StartFrom, StateName, #state{role = Role, s {stop, normal, {error, Error}, State0} end; -handle_sync_event(close, _, StateName, #state{protocol_cb = Connection} = State) -> - %% Run terminate before returning - %% so that the reuseaddr inet-option will work - %% as intended. - (catch Connection:terminate(user_close, StateName, State)), - {stop, normal, ok, State#state{terminated = true}}; +handle_sync_event({close, _} = Close, _, StateName, #state{protocol_cb = Connection} = State) -> + %% Run terminate before returning so that the reuseaddr + %% inet-option and possible downgrade will work as intended. + Result = Connection:terminate(Close, StateName, State), + {stop, normal, Result, State#state{terminated = true}}; + handle_sync_event({shutdown, How0}, _, StateName, #state{transport_cb = Transport, negotiated_version = Version, @@ -814,7 +821,8 @@ handle_sync_event({prf, Secret, Label, Seed, WantedLength}, _, StateName, SecParams = ConnectionState#connection_state.security_parameters, #security_parameters{master_secret = MasterSecret, client_random = ClientRandom, - server_random = ServerRandom} = SecParams, + server_random = ServerRandom, + prf_algorithm = PRFAlgorithm} = SecParams, Reply = try SecretToUse = case Secret of _ when is_binary(Secret) -> Secret; @@ -825,7 +833,7 @@ handle_sync_event({prf, Secret, Label, Seed, WantedLength}, _, StateName, (client_random, Acc) -> [ClientRandom|Acc]; (server_random, Acc) -> [ServerRandom|Acc] end, [], Seed)), - ssl_handshake:prf(Version, SecretToUse, Label, SeedToUse, WantedLength) + ssl_handshake:prf(Version, PRFAlgorithm, SecretToUse, Label, SeedToUse, WantedLength) catch exit:_ -> {error, badarg}; error:Reason -> {error, Reason} @@ -835,15 +843,22 @@ handle_sync_event(session_info, _, StateName, #state{session = #session{session_id = Id, cipher_suite = Suite}} = State) -> {reply, [{session_id, Id}, - {cipher_suite, ssl:suite_definition(Suite)}], + {cipher_suite, ssl_cipher:erl_suite_definition(Suite)}], StateName, State, get_timeout(State)}; handle_sync_event(peer_certificate, _, StateName, #state{session = #session{peer_certificate = Cert}} = State) -> {reply, {ok, Cert}, StateName, State, get_timeout(State)}; -handle_sync_event(connection_information, _, StateName, #state{sni_hostname = SNIHostname, session = #session{cipher_suite = CipherSuite}, negotiated_version = Version} = State) -> - {reply, {ok, [{protocol, tls_record:protocol_version(Version)}, {cipher_suite, ssl:suite_definition(CipherSuite)}, {sni_hostname, SNIHostname}]}, StateName, State, get_timeout(State)}. +handle_sync_event(connection_information, _, StateName, State) -> + Info = connection_info(State), + {reply, {ok, Info}, StateName, State, get_timeout(State)}. +connection_info(#state{sni_hostname = SNIHostname, + session = #session{cipher_suite = CipherSuite}, + negotiated_version = Version, ssl_options = Opts}) -> + [{protocol, tls_record:protocol_version(Version)}, + {cipher_suite, ssl_cipher:erl_suite_definition(CipherSuite)}, + {sni_hostname, SNIHostname}] ++ ssl_options_list(Opts). handle_info({ErrorTag, Socket, econnaborted}, StateName, #state{socket = Socket, transport_cb = Transport, @@ -901,41 +916,46 @@ terminate(_, _, #state{terminated = true}) -> %% we want to guarantee that Transport:close has been called %% when ssl:close/1 returns. ok; -terminate({shutdown, transport_closed}, StateName, #state{send_queue = SendQueue, - renegotiation = Renegotiate} = State) -> - handle_unrecv_data(StateName, State), +terminate({shutdown, transport_closed} = Reason, + _StateName, #state{send_queue = SendQueue, protocol_cb = Connection, + socket = Socket, transport_cb = Transport, + renegotiation = Renegotiate} = State) -> handle_trusted_certs_db(State), notify_senders(SendQueue), - notify_renegotiater(Renegotiate); - -terminate({shutdown, own_alert}, _StateName, #state{send_queue = SendQueue, - renegotiation = Renegotiate} = State) -> + notify_renegotiater(Renegotiate), + Connection:close(Reason, Socket, Transport, undefined, undefined); +terminate({shutdown, own_alert}, _StateName, #state{send_queue = SendQueue, protocol_cb = Connection, + socket = Socket, transport_cb = Transport, + renegotiation = Renegotiate} = State) -> handle_trusted_certs_db(State), notify_senders(SendQueue), - notify_renegotiater(Renegotiate); + notify_renegotiater(Renegotiate), + case application:get_env(ssl, alert_timeout) of + {ok, Timeout} when is_integer(Timeout) -> + Connection:close({timeout, Timeout}, Socket, Transport, undefined, undefined); + _ -> + Connection:close({timeout, ?DEFAULT_TIMEOUT}, Socket, Transport, undefined, undefined) + end; terminate(Reason, connection, #state{negotiated_version = Version, protocol_cb = Connection, - connection_states = ConnectionStates, + connection_states = ConnectionStates0, + ssl_options = #ssl_options{padding_check = Check}, transport_cb = Transport, socket = Socket, send_queue = SendQueue, renegotiation = Renegotiate} = State) -> handle_trusted_certs_db(State), notify_senders(SendQueue), notify_renegotiater(Renegotiate), - BinAlert = terminate_alert(Reason, Version, ConnectionStates), + {BinAlert, ConnectionStates} = terminate_alert(Reason, Version, ConnectionStates0), Transport:send(Socket, BinAlert), - case Connection of - tls_connection -> - tls_connection:workaround_transport_delivery_problems(Socket, Transport); - _ -> - ok - end; -terminate(_Reason, _StateName, #state{transport_cb = Transport, + Connection:close(Reason, Socket, Transport, ConnectionStates, Check); + +terminate(Reason, _StateName, #state{transport_cb = Transport, protocol_cb = Connection, socket = Socket, send_queue = SendQueue, renegotiation = Renegotiate} = State) -> handle_trusted_certs_db(State), notify_senders(SendQueue), notify_renegotiater(Renegotiate), - Transport:close(Socket). + Connection:close(Reason, Socket, Transport, undefined, undefined). format_status(normal, [_, State]) -> [{data, [{"StateData", State}]}]; @@ -968,7 +988,7 @@ ssl_config(Opts, Role, State) -> {ok, Ref, CertDbHandle, FileRefHandle, CacheHandle, CRLDbInfo, OwnCert, Key, DHParams} = ssl_config:init(Opts, Role), Handshake = ssl_handshake:init_handshake_history(), - TimeStamp = calendar:datetime_to_gregorian_seconds({date(), time()}), + TimeStamp = erlang:monotonic_time(), Session = State#state.session, State#state{tls_handshake_history = Handshake, session = Session#session{own_certificate = OwnCert, @@ -1435,7 +1455,8 @@ rsa_psk_key_exchange(Version, PskIdentity, PremasterSecret, PublicKeyInfo = {Alg rsa_psk_key_exchange(_, _, _, _) -> throw (?ALERT_REC(?FATAL,?HANDSHAKE_FAILURE)). -request_client_cert(#state{ssl_options = #ssl_options{verify = verify_peer}, +request_client_cert(#state{ssl_options = #ssl_options{verify = verify_peer, + signature_algs = SupportedHashSigns}, connection_states = ConnectionStates0, cert_db = CertDbHandle, cert_db_ref = CertDbRef, @@ -1443,7 +1464,9 @@ request_client_cert(#state{ssl_options = #ssl_options{verify = verify_peer}, #connection_state{security_parameters = #security_parameters{cipher_suite = CipherSuite}} = ssl_record:pending_connection_state(ConnectionStates0, read), - Msg = ssl_handshake:certificate_request(CipherSuite, CertDbHandle, CertDbRef, Version), + HashSigns = ssl_handshake:available_signature_algs(SupportedHashSigns, Version, [Version]), + Msg = ssl_handshake:certificate_request(CipherSuite, CertDbHandle, CertDbRef, + HashSigns, Version), State = Connection:send_handshake(Msg, State0), State#state{client_certificate_requested = true}; @@ -1758,37 +1781,24 @@ get_timeout(#state{ssl_options=#ssl_options{hibernate_after = undefined}}) -> get_timeout(#state{ssl_options=#ssl_options{hibernate_after = HibernateAfter}}) -> HibernateAfter. -terminate_alert(Reason, Version, ConnectionStates) when Reason == normal; - Reason == user_close -> - {BinAlert, _} = ssl_alert:encode(?ALERT_REC(?WARNING, ?CLOSE_NOTIFY), - Version, ConnectionStates), - BinAlert; -terminate_alert({shutdown, _}, Version, ConnectionStates) -> - {BinAlert, _} = ssl_alert:encode(?ALERT_REC(?WARNING, ?CLOSE_NOTIFY), - Version, ConnectionStates), - BinAlert; +terminate_alert(normal, Version, ConnectionStates) -> + ssl_alert:encode(?ALERT_REC(?WARNING, ?CLOSE_NOTIFY), + Version, ConnectionStates); +terminate_alert({Reason, _}, Version, ConnectionStates) when Reason == close; + Reason == shutdown -> + ssl_alert:encode(?ALERT_REC(?WARNING, ?CLOSE_NOTIFY), + Version, ConnectionStates); terminate_alert(_, Version, ConnectionStates) -> - {BinAlert, _} = ssl_alert:encode(?ALERT_REC(?FATAL, ?INTERNAL_ERROR), - Version, ConnectionStates), - BinAlert. - -handle_unrecv_data(StateName, #state{socket = Socket, transport_cb = Transport, - protocol_cb = Connection} = State) -> - ssl_socket:setopts(Transport, Socket, [{active, false}]), - case Transport:recv(Socket, 0, 0) of - {error, closed} -> - ok; - {ok, Data} -> - Connection:handle_close_alert(Data, StateName, State) - end. + ssl_alert:encode(?ALERT_REC(?FATAL, ?INTERNAL_ERROR), + Version, ConnectionStates). handle_trusted_certs_db(#state{ssl_options = #ssl_options{cacertfile = <<>>, cacerts = []}}) -> %% No trusted certs specified ok; handle_trusted_certs_db(#state{cert_db_ref = Ref, cert_db = CertDb, - ssl_options = #ssl_options{cacertfile = <<>>}}) -> + ssl_options = #ssl_options{cacertfile = <<>>}}) when CertDb =/= undefined -> %% Certs provided as DER directly can not be shared %% with other connections and it is safe to delete them when the connection ends. ssl_pkix_db:remove_trusted_certs(Ref, CertDb); @@ -1881,14 +1891,40 @@ make_premaster_secret({MajVer, MinVer}, rsa) -> make_premaster_secret(_, _) -> undefined. -negotiated_hashsign(undefined, Alg, Version) -> +negotiated_hashsign(undefined, KexAlg, PubKeyInfo, Version) -> %% Not negotiated choose default - case is_anonymous(Alg) of + case is_anonymous(KexAlg) of true -> {null, anon}; false -> - ssl_handshake:select_hashsign_algs(Alg, Version) + {PubAlg, _, _} = PubKeyInfo, + ssl_handshake:select_hashsign_algs(undefined, PubAlg, Version) end; -negotiated_hashsign(HashSign = {_, _}, _, _) -> +negotiated_hashsign(HashSign = {_, _}, _, _, _) -> HashSign. +ssl_options_list(SslOptions) -> + Fileds = record_info(fields, ssl_options), + Values = tl(tuple_to_list(SslOptions)), + ssl_options_list(Fileds, Values, []). + +ssl_options_list([],[], Acc) -> + lists:reverse(Acc); +%% Skip internal options, only return user options +ssl_options_list([protocol | Keys], [_ | Values], Acc) -> + ssl_options_list(Keys, Values, Acc); +ssl_options_list([erl_dist | Keys], [_ | Values], Acc) -> + ssl_options_list(Keys, Values, Acc); +ssl_options_list([renegotiate_at | Keys], [_ | Values], Acc) -> + ssl_options_list(Keys, Values, Acc); +ssl_options_list([ciphers = Key | Keys], [Value | Values], Acc) -> + ssl_options_list(Keys, Values, + [{Key, lists:map( + fun(Suite) -> + ssl_cipher:erl_suite_definition(Suite) + end, Value)} + | Acc]); +ssl_options_list([Key | Keys], [Value | Values], Acc) -> + ssl_options_list(Keys, Values, [{Key, Value} | Acc]). + + |