From 88021d58ff1c5b92689b100d1288ef7d3185233f Mon Sep 17 00:00:00 2001 From: Ingela Anderton Andin Date: Mon, 1 Feb 2016 21:15:45 +0100 Subject: ssl: Include options form connect/listen/accept in connection_information/[1,2] Make sure that options only relevant for one role (client|server) is set to undefined when the other role is invoked. As there are many options to ssl, and many are optional, we choose to filter out all undefined options to avoid overwhelming the user with not relevant information. This way there is no need for any special handling of the role specific options which is also nice. --- lib/ssl/src/ssl.erl | 104 +++++++++++++++++++++++++++++++--------------------- 1 file changed, 63 insertions(+), 41 deletions(-) (limited to 'lib/ssl/src/ssl.erl') diff --git a/lib/ssl/src/ssl.erl b/lib/ssl/src/ssl.erl index 6551308935..c1bc90559e 100644 --- a/lib/ssl/src/ssl.erl +++ b/lib/ssl/src/ssl.erl @@ -37,7 +37,7 @@ close/1, close/2, shutdown/2, recv/2, recv/3, send/2, getopts/2, setopts/2 ]). %% SSL/TLS protocol handling --export([cipher_suites/0, cipher_suites/1, suite_definition/1, +-export([cipher_suites/0, cipher_suites/1, connection_info/1, versions/0, session_info/1, format_error/1, renegotiate/1, prf/5, negotiated_protocol/1, negotiated_next_protocol/1, connection_information/1, connection_information/2]). @@ -105,7 +105,7 @@ connect(Socket, SslOptions0, Timeout) when is_port(Socket), {gen_tcp, tcp, tcp_closed, tcp_error}), EmulatedOptions = ssl_socket:emulated_options(), {ok, SocketValues} = ssl_socket:getopts(Transport, Socket, EmulatedOptions), - try handle_options(SslOptions0 ++ SocketValues) of + try handle_options(SslOptions0 ++ SocketValues, client) of {ok, #config{transport_info = CbInfo, ssl = SslOptions, emulated = EmOpts, connection_cb = ConnectionCb}} -> @@ -127,7 +127,7 @@ connect(Host, Port, Options) -> connect(Host, Port, Options, infinity). connect(Host, Port, Options, Timeout) when (is_integer(Timeout) andalso Timeout > 0) or (Timeout == infinity) -> - try handle_options(Options) of + try handle_options(Options, client) of {ok, Config} -> do_connect(Host,Port,Config,Timeout) catch @@ -145,7 +145,7 @@ listen(_Port, []) -> {error, nooptions}; listen(Port, Options0) -> try - {ok, Config} = handle_options(Options0), + {ok, Config} = handle_options(Options0, server), ConnectionCb = connection_cb(Options0), #config{transport_info = {Transport, _, _, _}, inet_user = Options, connection_cb = ConnectionCb, ssl = SslOpts, emulated = EmOpts} = Config, @@ -233,7 +233,7 @@ ssl_accept(Socket, SslOptions, Timeout) when is_port(Socket), EmulatedOptions = ssl_socket:emulated_options(), {ok, SocketValues} = ssl_socket:getopts(Transport, Socket, EmulatedOptions), ConnetionCb = connection_cb(SslOptions), - try handle_options(SslOptions ++ SocketValues) of + try handle_options(SslOptions ++ SocketValues, server) of {ok, #config{transport_info = CbInfo, ssl = SslOpts, emulated = EmOpts}} -> ok = ssl_socket:setopts(Transport, Socket, ssl_socket:internal_inet_values()), {ok, Port} = ssl_socket:port(Transport, Socket), @@ -315,24 +315,32 @@ controlling_process(#sslsocket{pid = {Listen, %% %% Description: Return SSL information for the connection %%-------------------------------------------------------------------- -connection_information(#sslsocket{pid = Pid}) when is_pid(Pid) -> ssl_connection:connection_information(Pid); -connection_information(#sslsocket{pid = {Listen, _}}) when is_port(Listen) -> {error, enotconn}. - +connection_information(#sslsocket{pid = Pid}) when is_pid(Pid) -> + case ssl_connection:connection_information(Pid) of + {ok, Info} -> + {ok, [Item || Item = {_Key, Value} <- Info, Value =/= undefined]}; + Error -> + Error + end; +connection_information(#sslsocket{pid = {Listen, _}}) when is_port(Listen) -> + {error, enotconn}. %%-------------------------------------------------------------------- --spec connection_information(#sslsocket{}, [atom]) -> {ok, list()} | {error, reason()}. +-spec connection_information(#sslsocket{}, [atom()]) -> {ok, list()} | {error, reason()}. %% %% Description: Return SSL information for the connection %%-------------------------------------------------------------------- connection_information(#sslsocket{} = SSLSocket, Items) -> case connection_information(SSLSocket) of - {ok, I} -> - {ok, lists:filter(fun({K, _}) -> lists:foldl(fun(K1, Acc) when K1 =:= K -> Acc + 1; (_, Acc) -> Acc end, 0, Items) > 0 end, I)}; - E -> - E + {ok, Info} -> + {ok, [Item || Item = {Key, Value} <- Info, lists:member(Key, Items), + Value =/= undefined]}; + Error -> + Error end. %%-------------------------------------------------------------------- +%% Deprecated -spec connection_info(#sslsocket{}) -> {ok, {tls_record:tls_atom_version(), ssl_cipher:erl_cipher_suite()}} | {error, reason()}. %% @@ -371,15 +379,6 @@ peercert(#sslsocket{pid = Pid}) when is_pid(Pid) -> peercert(#sslsocket{pid = {Listen, _}}) when is_port(Listen) -> {error, enotconn}. -%%-------------------------------------------------------------------- --spec suite_definition(ssl_cipher:cipher_suite()) -> ssl_cipher:erl_cipher_suite(). -%% -%% Description: Return erlang cipher suite definition. -%%-------------------------------------------------------------------- -suite_definition(S) -> - {KeyExchange, Cipher, Hash, _} = ssl_cipher:suite_definition(S), - {KeyExchange, Cipher, Hash}. - %%-------------------------------------------------------------------- -spec negotiated_protocol(#sslsocket{}) -> {ok, binary()} | {error, reason()}. %% @@ -410,7 +409,7 @@ negotiated_next_protocol(Socket) -> %%-------------------------------------------------------------------- cipher_suites(erlang) -> Version = tls_record:highest_protocol_version([]), - ssl_cipher:filter_suites([suite_definition(S) + ssl_cipher:filter_suites([ssl_cipher:erl_suite_definition(S) || S <- ssl_cipher:suites(Version)]); cipher_suites(openssl) -> Version = tls_record:highest_protocol_version([]), @@ -418,7 +417,7 @@ cipher_suites(openssl) -> || S <- ssl_cipher:filter_suites(ssl_cipher:suites(Version))]; cipher_suites(all) -> Version = tls_record:highest_protocol_version([]), - ssl_cipher:filter_suites([suite_definition(S) + ssl_cipher:filter_suites([ssl_cipher:erl_suite_definition(S) || S <-ssl_cipher:all_suites(Version)]). cipher_suites() -> cipher_suites(erlang). @@ -630,7 +629,8 @@ handle_options(Opts0, #ssl_options{protocol = Protocol, cacerts = CaCerts0, cacertfile = CaCertFile0} = InheritedSslOpts) -> RecordCB = record_cb(Protocol), CaCerts = handle_option(cacerts, Opts0, CaCerts0), - {Verify, FailIfNoPeerCert, CaCertDefault, VerifyFun, PartialChainHanlder} = handle_verify_options(Opts0, CaCerts), + {Verify, FailIfNoPeerCert, CaCertDefault, VerifyFun, PartialChainHanlder, + VerifyClientOnce} = handle_verify_options(Opts0, CaCerts), CaCertFile = case proplists:get_value(cacertfile, Opts0, CaCertFile0) of undefined -> CaCertDefault; @@ -643,11 +643,12 @@ handle_options(Opts0, #ssl_options{protocol = Protocol, cacerts = CaCerts0, verify = Verify, verify_fun = VerifyFun, partial_chain = PartialChainHanlder, - fail_if_no_peer_cert = FailIfNoPeerCert}, + fail_if_no_peer_cert = FailIfNoPeerCert, + verify_client_once = VerifyClientOnce}, SslOpts1 = lists:foldl(fun(Key, PropList) -> proplists:delete(Key, PropList) end, Opts0, [cacerts, cacertfile, verify, verify_fun, partial_chain, - fail_if_no_peer_cert]), + fail_if_no_peer_cert, verify_client_once]), case handle_option(versions, SslOpts1, []) of [] -> new_ssl_options(SslOpts1, NewVerifyOpts, RecordCB); @@ -655,10 +656,10 @@ handle_options(Opts0, #ssl_options{protocol = Protocol, cacerts = CaCerts0, Versions = [RecordCB:protocol_version(Vsn) || Vsn <- Value], new_ssl_options(proplists:delete(versions, SslOpts1), NewVerifyOpts#ssl_options{versions = Versions}, record_cb(Protocol)) - end. + end; %% Handle all options in listen and connect -handle_options(Opts0) -> +handle_options(Opts0, Role) -> Opts = proplists:expand([{binary, [{mode, binary}]}, {list, [{mode, list}]}], Opts0), assert_proplist(Opts), @@ -667,7 +668,7 @@ handle_options(Opts0) -> ReuseSessionFun = fun(_, _, _, _) -> true end, CaCerts = handle_option(cacerts, Opts, undefined), - {Verify, FailIfNoPeerCert, CaCertDefault, VerifyFun, PartialChainHanlder} = + {Verify, FailIfNoPeerCert, CaCertDefault, VerifyFun, PartialChainHanlder, VerifyClientOnce} = handle_verify_options(Opts, CaCerts), CertFile = handle_option(certfile, Opts, <<>>), @@ -686,7 +687,7 @@ handle_options(Opts0) -> verify_fun = VerifyFun, partial_chain = PartialChainHanlder, fail_if_no_peer_cert = FailIfNoPeerCert, - verify_client_once = handle_option(verify_client_once, Opts, false), + verify_client_once = VerifyClientOnce, depth = handle_option(depth, Opts, 1), cert = handle_option(cert, Opts, undefined), certfile = CertFile, @@ -706,7 +707,9 @@ handle_options(Opts0) -> reuse_session = handle_option(reuse_session, Opts, ReuseSessionFun), reuse_sessions = handle_option(reuse_sessions, Opts, true), secure_renegotiate = handle_option(secure_renegotiate, Opts, false), - client_renegotiation = handle_option(client_renegotiation, Opts, true), + client_renegotiation = handle_option(client_renegotiation, Opts, + default_option_role(server, true, Role), + server, Role), renegotiate_at = handle_option(renegotiate_at, Opts, ?DEFAULT_RENEGOTIATE_AT), hibernate_after = handle_option(hibernate_after, Opts, undefined), erl_dist = handle_option(erl_dist, Opts, false), @@ -723,10 +726,16 @@ handle_options(Opts0) -> server_name_indication = handle_option(server_name_indication, Opts, undefined), sni_hosts = handle_option(sni_hosts, Opts, []), sni_fun = handle_option(sni_fun, Opts, undefined), - honor_cipher_order = handle_option(honor_cipher_order, Opts, false), + honor_cipher_order = handle_option(honor_cipher_order, Opts, + default_option_role(server, false, Role), + server, Role), protocol = proplists:get_value(protocol, Opts, tls), padding_check = proplists:get_value(padding_check, Opts, true), - fallback = proplists:get_value(fallback, Opts, false), + fallback = handle_option(fallback, Opts, + proplists:get_value(fallback, Opts, + default_option_role(client, + false, Role)), + client, Role), crl_check = handle_option(crl_check, Opts, false), crl_cache = handle_option(crl_cache, Opts, {ssl_crl_cache, {internal, []}}) }, @@ -756,6 +765,13 @@ handle_options(Opts0) -> inet_user = SockOpts, transport_info = CbInfo, connection_cb = ConnetionCb }}. + + +handle_option(OptionName, Opts, Default, Role, Role) -> + handle_option(OptionName, Opts, Default); +handle_option(_, _, undefined = Value, _, _) -> + Value. + handle_option(sni_fun, Opts, Default) -> OptFun = validate_option(sni_fun, proplists:get_value(sni_fun, Opts, Default)), @@ -772,7 +788,6 @@ handle_option(OptionName, Opts, Default) -> validate_option(OptionName, proplists:get_value(OptionName, Opts, Default)). - validate_option(versions, Versions) -> validate_versions(Versions, Versions); validate_option(verify, Value) @@ -1216,7 +1231,8 @@ emulated_socket_options(InetValues, #socket_options{ new_ssl_options([], #ssl_options{} = Opts, _) -> Opts; new_ssl_options([{verify_client_once, Value} | Rest], #ssl_options{} = Opts, RecordCB) -> - new_ssl_options(Rest, Opts#ssl_options{verify_client_once = validate_option(verify_client_once, Value)}, RecordCB); + new_ssl_options(Rest, Opts#ssl_options{verify_client_once = + validate_option(verify_client_once, Value)}, RecordCB); new_ssl_options([{depth, Value} | Rest], #ssl_options{} = Opts, RecordCB) -> new_ssl_options(Rest, Opts#ssl_options{depth = validate_option(depth, Value)}, RecordCB); new_ssl_options([{cert, Value} | Rest], #ssl_options{} = Opts, RecordCB) -> @@ -1295,29 +1311,35 @@ handle_verify_options(Opts, CaCerts) -> PartialChainHanlder = handle_option(partial_chain, Opts, fun(_) -> unknown_ca end), + VerifyClientOnce = handle_option(verify_client_once, Opts, false), + %% Handle 0, 1, 2 for backwards compatibility case proplists:get_value(verify, Opts, verify_none) of 0 -> {verify_none, false, ca_cert_default(verify_none, VerifyNoneFun, CaCerts), - VerifyNoneFun, PartialChainHanlder}; + VerifyNoneFun, PartialChainHanlder, VerifyClientOnce}; 1 -> {verify_peer, false, ca_cert_default(verify_peer, UserVerifyFun, CaCerts), - UserVerifyFun, PartialChainHanlder}; + UserVerifyFun, PartialChainHanlder, VerifyClientOnce}; 2 -> {verify_peer, true, ca_cert_default(verify_peer, UserVerifyFun, CaCerts), - UserVerifyFun, PartialChainHanlder}; + UserVerifyFun, PartialChainHanlder, VerifyClientOnce}; verify_none -> {verify_none, false, ca_cert_default(verify_none, VerifyNoneFun, CaCerts), - VerifyNoneFun, PartialChainHanlder}; + VerifyNoneFun, PartialChainHanlder, VerifyClientOnce}; verify_peer -> {verify_peer, UserFailIfNoPeerCert, ca_cert_default(verify_peer, UserVerifyFun, CaCerts), - UserVerifyFun, PartialChainHanlder}; + UserVerifyFun, PartialChainHanlder, VerifyClientOnce}; Value -> throw({error, {options, {verify, Value}}}) end. +default_option_role(Role, Value, Role) -> + Value; +default_option_role(_,_,_) -> + undefined. -- cgit v1.2.3