diff options
Diffstat (limited to 'lib/ssl/src')
| -rw-r--r-- | lib/ssl/src/ssl.erl | 195 | ||||
| -rw-r--r-- | lib/ssl/src/ssl_connection.erl | 224 | ||||
| -rw-r--r-- | lib/ssl/src/ssl_handshake.erl | 212 | ||||
| -rw-r--r-- | lib/ssl/src/ssl_handshake.hrl | 20 | ||||
| -rw-r--r-- | lib/ssl/src/ssl_internal.hrl | 4 |
5 files changed, 471 insertions, 184 deletions
diff --git a/lib/ssl/src/ssl.erl b/lib/ssl/src/ssl.erl index 69e8d868fa..771bfa5739 100644 --- a/lib/ssl/src/ssl.erl +++ b/lib/ssl/src/ssl.erl @@ -31,13 +31,15 @@ controlling_process/2, listen/2, pid/1, peername/1, peercert/1, recv/2, recv/3, send/2, getopts/2, setopts/2, sockname/1, versions/0, session_info/1, format_error/1, - renegotiate/1, prf/5, clear_pem_cache/0, random_bytes/1]). + renegotiate/1, prf/5, clear_pem_cache/0, random_bytes/1, negotiated_next_protocol/1]). + -deprecated({pid, 1, next_major_release}). -include("ssl_internal.hrl"). -include("ssl_record.hrl"). -include("ssl_cipher.hrl"). +-include("ssl_handshake.hrl"). -include_lib("public_key/include/public_key.hrl"). @@ -65,7 +67,9 @@ {keyfile, path()} | {password, string()} | {cacerts, [Der::binary()]} | {cacertfile, path()} | {dh, Der::binary()} | {dhfile, path()} | {ciphers, ciphers()} | {ssl_imp, ssl_imp()} | {reuse_sessions, boolean()} | - {reuse_session, fun()} | {hibernate_after, integer()|undefined}. + {reuse_session, fun()} | {hibernate_after, integer()|undefined} | + {next_protocols_advertised, list(binary())} | + {client_preferred_next_protocols, binary(), client | server, list(binary())}. -type verify_type() :: verify_none | verify_peer. -type path() :: string(). @@ -161,7 +165,7 @@ listen(Port, Options0) -> #config{cb={CbModule, _, _, _},inet_user=Options} = Config, case CbModule:listen(Port, Options) of {ok, ListenSocket} -> - {ok, #sslsocket{pid = {ListenSocket, Config}, fd = new_ssl}}; + {ok, #sslsocket{pid = {ListenSocket, Config}}}; Err = {error, _} -> Err end @@ -241,18 +245,20 @@ ssl_accept(Socket, SslOptions, Timeout) when is_port(Socket) -> %% %% Description: Close an ssl connection %%-------------------------------------------------------------------- +close(#sslsocket{pid = Pid}) when is_pid(Pid) -> + ssl_connection:close(Pid); close(#sslsocket{pid = {ListenSocket, #config{cb={CbMod,_, _, _}}}}) -> - CbMod:close(ListenSocket); -close(#sslsocket{pid = Pid}) -> - ssl_connection:close(Pid). + CbMod:close(ListenSocket). %%-------------------------------------------------------------------- -spec send(#sslsocket{}, iodata()) -> ok | {error, reason()}. %% %% Description: Sends data over the ssl connection %%-------------------------------------------------------------------- -send(#sslsocket{pid = Pid}, Data) -> - ssl_connection:send(Pid, Data). +send(#sslsocket{pid = Pid}, Data) when is_pid(Pid) -> + ssl_connection:send(Pid, Data); +send(#sslsocket{pid = {ListenSocket, #config{cb={CbModule, _, _, _}}}}, Data) -> + CbModule:send(ListenSocket, Data). %% {error,enotconn} %%-------------------------------------------------------------------- -spec recv(#sslsocket{}, integer()) -> {ok, binary()| list()} | {error, reason()}. @@ -262,8 +268,10 @@ send(#sslsocket{pid = Pid}, Data) -> %%-------------------------------------------------------------------- recv(Socket, Length) -> recv(Socket, Length, infinity). -recv(#sslsocket{pid = Pid, fd = new_ssl}, Length, Timeout) -> - ssl_connection:recv(Pid, Length, Timeout). +recv(#sslsocket{pid = Pid}, Length, Timeout) when is_pid(Pid) -> + ssl_connection:recv(Pid, Length, Timeout); +recv(#sslsocket{pid = {Listen, #config{cb={CbModule, _, _, _}}}}, _,_) when is_port(Listen)-> + CbModule:recv(Listen, 0). %% {error,enotconn} %%-------------------------------------------------------------------- -spec controlling_process(#sslsocket{}, pid()) -> ok | {error, reason()}. @@ -271,8 +279,12 @@ recv(#sslsocket{pid = Pid, fd = new_ssl}, Length, Timeout) -> %% Description: Changes process that receives the messages when active = true %% or once. %%-------------------------------------------------------------------- -controlling_process(#sslsocket{pid = Pid}, NewOwner) when is_pid(Pid) -> - ssl_connection:new_user(Pid, NewOwner). +controlling_process(#sslsocket{pid = Pid}, NewOwner) when is_pid(Pid), is_pid(NewOwner) -> + ssl_connection:new_user(Pid, NewOwner); +controlling_process(#sslsocket{pid = {Listen, + #config{cb={CbModule, _, _, _}}}}, NewOwner) when is_port(Listen), + is_pid(NewOwner) -> + CbModule:controlling_process(Listen, NewOwner). %%-------------------------------------------------------------------- -spec connection_info(#sslsocket{}) -> {ok, {tls_atom_version(), erl_cipher_suite()}} | @@ -280,29 +292,35 @@ controlling_process(#sslsocket{pid = Pid}, NewOwner) when is_pid(Pid) -> %% %% Description: Returns ssl protocol and cipher used for the connection %%-------------------------------------------------------------------- -connection_info(#sslsocket{pid = Pid}) -> - ssl_connection:info(Pid). +connection_info(#sslsocket{pid = Pid}) when is_pid(Pid) -> + ssl_connection:info(Pid); +connection_info(#sslsocket{pid = {Listen, _}}) when is_port(Listen) -> + {error, enotconn}. %%-------------------------------------------------------------------- -spec peername(#sslsocket{}) -> {ok, {inet:ip_address(), inet:port_number()}} | {error, reason()}. %% %% Description: same as inet:peername/1. %%-------------------------------------------------------------------- -peername(#sslsocket{pid = Pid}) -> - ssl_connection:peername(Pid). +peername(#sslsocket{pid = Pid, fd = Socket}) when is_pid(Pid)-> + inet:peername(Socket); +peername(#sslsocket{pid = {ListenSocket, _}}) -> + inet:peername(ListenSocket). %% Will return {error, enotconn} %%-------------------------------------------------------------------- -spec peercert(#sslsocket{}) ->{ok, DerCert::binary()} | {error, reason()}. %% %% Description: Returns the peercert. %%-------------------------------------------------------------------- -peercert(#sslsocket{pid = Pid}) -> +peercert(#sslsocket{pid = Pid}) when is_pid(Pid) -> case ssl_connection:peer_certificate(Pid) of {ok, undefined} -> {error, no_peercert}; Result -> Result - end. + end; +peercert(#sslsocket{pid = {Listen, _}}) when is_port(Listen) -> + {error, enotconn}. %%-------------------------------------------------------------------- -spec suite_definition(cipher_suite()) -> erl_cipher_suite(). @@ -314,6 +332,14 @@ suite_definition(S) -> {KeyExchange, Cipher, Hash}. %%-------------------------------------------------------------------- +-spec negotiated_next_protocol(#sslsocket{}) -> {ok, binary()} | {error, reason()}. +%% +%% Description: Returns the next protocol that has been negotiated. If no +%% protocol has been negotiated will return {error, next_protocol_not_negotiated} +%%-------------------------------------------------------------------- +negotiated_next_protocol(#sslsocket{pid = Pid}) -> + ssl_connection:negotiated_next_protocol(Pid). + -spec cipher_suites() -> [erl_cipher_suite()]. -spec cipher_suites(erlang | openssl) -> [erl_cipher_suite()] | [string()]. @@ -384,8 +410,9 @@ setopts(#sslsocket{}, Options) -> %% %% Description: Same as gen_tcp:shutdown/2 %%-------------------------------------------------------------------- -shutdown(#sslsocket{pid = {ListenSocket, #config{cb={CbMod,_, _, _}}}}, How) -> - CbMod:shutdown(ListenSocket, How); +shutdown(#sslsocket{pid = {Listen, #config{cb={CbMod,_, _, _}}}}, + How) when is_port(Listen) -> + CbMod:shutdown(Listen, How); shutdown(#sslsocket{pid = Pid}, How) -> ssl_connection:shutdown(Pid, How). @@ -394,11 +421,11 @@ shutdown(#sslsocket{pid = Pid}, How) -> %% %% Description: Same as inet:sockname/1 %%-------------------------------------------------------------------- -sockname(#sslsocket{pid = {ListenSocket, _}}) -> - inet:sockname(ListenSocket); +sockname(#sslsocket{pid = {Listen, _}}) when is_port(Listen) -> + inet:sockname(Listen); -sockname(#sslsocket{pid = Pid}) -> - ssl_connection:sockname(Pid). +sockname(#sslsocket{pid = Pid, fd = Socket}) when is_pid(Pid) -> + inet:sockname(Socket). %%--------------------------------------------------------------- -spec session_info(#sslsocket{}) -> {ok, list()} | {error, reason()}. @@ -406,12 +433,14 @@ sockname(#sslsocket{pid = Pid}) -> %% Description: Returns list of session info currently [{session_id, session_id(), %% {cipher_suite, cipher_suite()}] %%-------------------------------------------------------------------- -session_info(#sslsocket{pid = Pid, fd = new_ssl}) -> - ssl_connection:session_info(Pid). +session_info(#sslsocket{pid = Pid}) when is_pid(Pid) -> + ssl_connection:session_info(Pid); +session_info(#sslsocket{pid = {Listen,_}}) when is_port(Listen) -> + {error, enotconn}. %%--------------------------------------------------------------- -spec versions() -> [{ssl_app, string()} | {supported, [tls_atom_version()]} | - {available, [tls_atom_version()]}]. + {available, [tls_atom_version()]}]. %% %% Description: Returns a list of relevant versions. %%-------------------------------------------------------------------- @@ -427,8 +456,10 @@ versions() -> %% %% Description: Initiates a renegotiation. %%-------------------------------------------------------------------- -renegotiate(#sslsocket{pid = Pid, fd = new_ssl}) -> - ssl_connection:renegotiation(Pid). +renegotiate(#sslsocket{pid = Pid}) when is_pid(Pid) -> + ssl_connection:renegotiation(Pid); +renegotiate(#sslsocket{pid = {Listen,_}}) when is_port(Listen) -> + {error, enotconn}. %%-------------------------------------------------------------------- -spec prf(#sslsocket{}, binary() | 'master_secret', binary(), @@ -437,10 +468,11 @@ renegotiate(#sslsocket{pid = Pid, fd = new_ssl}) -> %% %% Description: use a ssl sessions TLS PRF to generate key material %%-------------------------------------------------------------------- -prf(#sslsocket{pid = Pid, fd = new_ssl}, - Secret, Label, Seed, WantedLength) -> - ssl_connection:prf(Pid, Secret, Label, Seed, WantedLength). - +prf(#sslsocket{pid = Pid}, + Secret, Label, Seed, WantedLength) when is_pid(Pid) -> + ssl_connection:prf(Pid, Secret, Label, Seed, WantedLength); +prf(#sslsocket{pid = {Listen,_}}, _,_,_,_) when is_port(Listen) -> + {error, enotconn}. %%-------------------------------------------------------------------- -spec clear_pem_cache() -> ok. @@ -594,7 +626,9 @@ handle_options(Opts0, _Role) -> renegotiate_at = handle_option(renegotiate_at, Opts, ?DEFAULT_RENEGOTIATE_AT), debug = handle_option(debug, Opts, []), hibernate_after = handle_option(hibernate_after, Opts, undefined), - erl_dist = handle_option(erl_dist, Opts, false) + erl_dist = handle_option(erl_dist, Opts, false), + next_protocols_advertised = handle_option(next_protocols_advertised, Opts, undefined), + next_protocol_selector = make_next_protocol_selector(handle_option(client_preferred_next_protocols, Opts, undefined)) }, CbInfo = proplists:get_value(cb_info, Opts, {gen_tcp, tcp, tcp_closed, tcp_error}), @@ -603,7 +637,8 @@ handle_options(Opts0, _Role) -> depth, cert, certfile, key, keyfile, password, cacerts, cacertfile, dh, dhfile, ciphers, debug, reuse_session, reuse_sessions, ssl_imp, - cb_info, renegotiate_at, secure_renegotiate, hibernate_after, erl_dist], + cb_info, renegotiate_at, secure_renegotiate, hibernate_after, erl_dist, next_protocols_advertised, + client_preferred_next_protocols], SockOpts = lists:foldl(fun(Key, PropList) -> proplists:delete(Key, PropList) @@ -728,12 +763,64 @@ validate_option(hibernate_after, undefined) -> undefined; validate_option(hibernate_after, Value) when is_integer(Value), Value >= 0 -> Value; -validate_option(erl_dist,Value) when Value == true; +validate_option(erl_dist,Value) when Value == true; Value == false -> Value; +validate_option(client_preferred_next_protocols = Opt, {Precedence, PreferredProtocols} = Value) + when is_list(PreferredProtocols) -> + case ssl_record:highest_protocol_version([]) of + {3,0} -> + throw({error, {eoptions, {not_supported_in_sslv3, {Opt, Value}}}}); + _ -> + validate_binary_list(client_preferred_next_protocols, PreferredProtocols), + validate_npn_ordering(Precedence), + {Precedence, PreferredProtocols, ?NO_PROTOCOL} + end; +validate_option(client_preferred_next_protocols = Opt, {Precedence, PreferredProtocols, Default} = Value) + when is_list(PreferredProtocols), is_binary(Default), + byte_size(Default) > 0, byte_size(Default) < 256 -> + case ssl_record:highest_protocol_version([]) of + {3,0} -> + throw({error, {eoptions, {not_supported_in_sslv3, {Opt, Value}}}}); + _ -> + validate_binary_list(client_preferred_next_protocols, PreferredProtocols), + validate_npn_ordering(Precedence), + Value + end; + +validate_option(client_preferred_next_protocols, undefined) -> + undefined; +validate_option(next_protocols_advertised = Opt, Value) when is_list(Value) -> + case ssl_record:highest_protocol_version([]) of + {3,0} -> + throw({error, {eoptions, {not_supported_in_sslv3, {Opt, Value}}}}); + _ -> + validate_binary_list(next_protocols_advertised, Value), + Value + end; + +validate_option(next_protocols_advertised, undefined) -> + undefined; validate_option(Opt, Value) -> throw({error, {eoptions, {Opt, Value}}}). - + +validate_npn_ordering(client) -> + ok; +validate_npn_ordering(server) -> + ok; +validate_npn_ordering(Value) -> + throw({error, {eoptions, {client_preferred_next_protocols, {invalid_precedence, Value}}}}). + +validate_binary_list(Opt, List) -> + lists:foreach( + fun(Bin) when is_binary(Bin), + byte_size(Bin) > 0, + byte_size(Bin) < 256 -> + ok; + (Bin) -> + throw({error, {eoptions, {Opt, {invalid_protocol, Bin}}}}) + end, List). + validate_versions([], Versions) -> Versions; validate_versions([Version | Rest], Versions) when Version == 'tlsv1.2'; @@ -839,6 +926,34 @@ cipher_suites(Version, Ciphers0) -> no_format(Error) -> lists:flatten(io_lib:format("No format string for error: \"~p\" available.", [Error])). + +detect(_Pred, []) -> + undefined; +detect(Pred, [H|T]) -> + case Pred(H) of + true -> + H; + _ -> + detect(Pred, T) + end. + +make_next_protocol_selector(undefined) -> + undefined; +make_next_protocol_selector({client, AllProtocols, DefaultProtocol}) -> + fun(AdvertisedProtocols) -> + case detect(fun(PreferredProtocol) -> lists:member(PreferredProtocol, AdvertisedProtocols) end, AllProtocols) of + undefined -> DefaultProtocol; + PreferredProtocol -> PreferredProtocol + end + end; + +make_next_protocol_selector({server, AllProtocols, DefaultProtocol}) -> + fun(AdvertisedProtocols) -> + case detect(fun(PreferredProtocol) -> lists:member(PreferredProtocol, AllProtocols) end, AdvertisedProtocols) of + undefined -> DefaultProtocol; + PreferredProtocol -> PreferredProtocol + end + end. %% Only used to remove exit messages from old ssl %% First is a nonsense clause to provide some @@ -846,7 +961,5 @@ no_format(Error) -> %% function in a none recommended way, but will %% work correctly if a valid pid is returned. %% Deprcated to be removed in r16 -pid(#sslsocket{fd = new_ssl}) -> - whereis(ssl_connection_sup); -pid(#sslsocket{pid = Pid}) -> - Pid. +pid(#sslsocket{})-> + whereis(ssl_connection_sup). diff --git a/lib/ssl/src/ssl_connection.erl b/lib/ssl/src/ssl_connection.erl index eb71bc61e9..87cf49d07d 100644 --- a/lib/ssl/src/ssl_connection.erl +++ b/lib/ssl/src/ssl_connection.erl @@ -40,8 +40,7 @@ -export([send/2, recv/3, connect/7, ssl_accept/6, handshake/2, socket_control/3, close/1, shutdown/2, new_user/2, get_opts/2, set_opts/2, info/1, session_info/1, - peer_certificate/1, sockname/1, peername/1, renegotiation/1, - prf/5]). + peer_certificate/1, renegotiation/1, negotiated_next_protocol/1, prf/5]). %% Called by ssl_connection_sup -export([start_link/7]). @@ -92,7 +91,9 @@ start_or_recv_from, % "gen_fsm From" send_queue, % queue() terminated = false, % - allow_renegotiate = true + allow_renegotiate = true, + expecting_next_protocol_negotiation = false :: boolean(), + next_protocol = undefined :: undefined | binary() }). -define(DEFAULT_DIFFIE_HELLMAN_PARAMS, @@ -179,7 +180,7 @@ handshake(#sslsocket{pid = Pid}, Timeout) -> socket_control(Socket, Pid, CbModule) -> case CbModule:controlling_process(Socket, Pid) of ok -> - {ok, sslsocket(Pid)}; + {ok, sslsocket(Pid, Socket)}; {error, Reason} -> {error, Reason} end. @@ -213,20 +214,15 @@ shutdown(ConnectionPid, How) -> %%-------------------------------------------------------------------- new_user(ConnectionPid, User) -> sync_send_all_state_event(ConnectionPid, {new_user, User}). + %%-------------------------------------------------------------------- --spec sockname(pid()) -> {ok, {inet:ip_address(), inet:port_number()}} | {error, reason()}. -%% -%% Description: Same as inet:sockname/1 -%%-------------------------------------------------------------------- -sockname(ConnectionPid) -> - sync_send_all_state_event(ConnectionPid, sockname). -%%-------------------------------------------------------------------- --spec peername(pid()) -> {ok, {inet:ip_address(), inet:port_number()}} | {error, reason()}. +-spec negotiated_next_protocol(pid()) -> {ok, binary()} | {error, reason()}. %% -%% Description: Same as inet:peername/1 +%% Description: Returns the negotiated protocol %%-------------------------------------------------------------------- -peername(ConnectionPid) -> - sync_send_all_state_event(ConnectionPid, peername). +negotiated_next_protocol(ConnectionPid) -> + sync_send_all_state_event(ConnectionPid, negotiated_next_protocol). + %%-------------------------------------------------------------------- -spec get_opts(pid(), list()) -> {ok, list()} | {error, reason()}. %% @@ -374,16 +370,29 @@ hello(#server_hello{cipher_suite = CipherSuite, renegotiation = {Renegotiation, _}, ssl_options = SslOptions} = State0) -> case ssl_handshake:hello(Hello, SslOptions, ConnectionStates0, Renegotiation) of - {Version, NewId, ConnectionStates} -> + #alert{} = Alert -> + handle_own_alert(Alert, ReqVersion, hello, State0), + {stop, {shutdown, own_alert}, State0}; + {Version, NewId, ConnectionStates, NextProtocol} -> {KeyAlgorithm, _, _, _} = ssl_cipher:suite_definition(CipherSuite), - + PremasterSecret = make_premaster_secret(ReqVersion, KeyAlgorithm), + + NewNextProtocol = case NextProtocol of + undefined -> + State0#state.next_protocol; + _ -> + NextProtocol + end, + State = State0#state{key_algorithm = KeyAlgorithm, hashsign_algorithm = default_hashsign(Version, KeyAlgorithm), negotiated_version = Version, connection_states = ConnectionStates, - premaster_secret = PremasterSecret}, + premaster_secret = PremasterSecret, + expecting_next_protocol_negotiation = NextProtocol =/= undefined, + next_protocol = NewNextProtocol}, case ssl_session:is_new(OldId, NewId) of true -> @@ -391,13 +400,10 @@ hello(#server_hello{cipher_suite = CipherSuite, State#state{connection_states = ConnectionStates}); false -> handle_resumed_session(NewId, State#state{connection_states = ConnectionStates}) - end; - #alert{} = Alert -> - handle_own_alert(Alert, ReqVersion, hello, State0), - {stop, {shutdown, own_alert}, State0} + end end; -hello(Hello = #client_hello{client_version = ClientVersion}, +hello(Hello = #client_hello{client_version = ClientVersion}, State = #state{connection_states = ConnectionStates0, port = Port, session = #session{own_certificate = Cert} = Session0, renegotiation = {Renegotiation, _}, @@ -406,8 +412,8 @@ hello(Hello = #client_hello{client_version = ClientVersion}, ssl_options = SslOpts}) -> case ssl_handshake:hello(Hello, SslOpts, {Port, Session0, Cache, CacheCb, ConnectionStates0, Cert}, Renegotiation) of - {Version, {Type, Session}, ConnectionStates} -> - do_server_hello(Type, State#state{connection_states = + {Version, {Type, Session}, ConnectionStates, ProtocolsToAdvertise} -> + do_server_hello(Type, ProtocolsToAdvertise, State#state{connection_states = ConnectionStates, negotiated_version = Version, session = Session}); @@ -583,6 +589,7 @@ certify(#client_key_exchange{exchange_keys = Keys}, handle_own_alert(Alert, Version, certify, State) end; + certify(timeout, State) -> { next_state, certify, State, hibernate }; @@ -649,6 +656,12 @@ cipher(#certificate_verify{signature = Signature, hashsign_algorithm = CertHashS handle_own_alert(Alert, Version, cipher, State0) end; +% client must send a next protocol message if we are expecting it +cipher(#finished{}, #state{role = server, expecting_next_protocol_negotiation = true, + next_protocol = undefined, negotiated_version = Version} = State0) -> + handle_own_alert(?ALERT_REC(?FATAL,?UNEXPECTED_MESSAGE), Version, cipher, State0), + {stop, normal, State0}; + cipher(#finished{verify_data = Data} = Finished, #state{negotiated_version = Version, host = Host, @@ -669,6 +682,13 @@ cipher(#finished{verify_data = Data} = Finished, handle_own_alert(Alert, Version, cipher, State) end; +% only allowed to send next_protocol message after change cipher spec +% & before finished message and it is not allowed during renegotiation +cipher(#next_protocol{selected_protocol = SelectedProtocol}, + #state{role = server, expecting_next_protocol_negotiation = true} = State0) -> + {Record, State} = next_record(State0#state{next_protocol = SelectedProtocol}), + next_state(cipher, cipher, Record, State); + cipher(timeout, State) -> { next_state, cipher, State, hibernate }; @@ -828,15 +848,10 @@ handle_sync_event({get_opts, OptTags}, _From, StateName, OptsReply = get_socket_opts(Socket, OptTags, SockOpts, []), {reply, OptsReply, StateName, State, get_timeout(State)}; -handle_sync_event(sockname, _From, StateName, - #state{socket = Socket} = State) -> - SockNameReply = inet:sockname(Socket), - {reply, SockNameReply, StateName, State, get_timeout(State)}; - -handle_sync_event(peername, _From, StateName, - #state{socket = Socket} = State) -> - PeerNameReply = inet:peername(Socket), - {reply, PeerNameReply, StateName, State, get_timeout(State)}; +handle_sync_event(negotiated_next_protocol, _From, StateName, #state{next_protocol = undefined} = State) -> + {reply, {error, next_protocol_not_negotiated}, StateName, State, get_timeout(State)}; +handle_sync_event(negotiated_next_protocol, _From, StateName, #state{next_protocol = NextProtocol} = State) -> + {reply, {ok, NextProtocol}, StateName, State, get_timeout(State)}; handle_sync_event({set_opts, Opts0}, _From, StateName, #state{socket_options = Opts1, @@ -965,7 +980,7 @@ handle_info({CloseTag, Socket}, StateName, handle_info({ErrorTag, Socket, econnaborted}, StateName, #state{socket = Socket, start_or_recv_from = StartFrom, role = Role, error_tag = ErrorTag} = State) when StateName =/= connection -> - alert_user(StartFrom, ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE), Role), + alert_user(Socket, StartFrom, ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE), Role), {stop, normal, State}; handle_info({ErrorTag, Socket, Reason}, StateName, #state{socket = Socket, @@ -1279,17 +1294,18 @@ verify_client_cert(#state{client_certificate_requested = true, role = client, verify_client_cert(#state{client_certificate_requested = false} = State) -> State. -do_server_hello(Type, #state{negotiated_version = Version, - session = #session{session_id = SessId}, - connection_states = ConnectionStates0, - renegotiation = {Renegotiation, _}} - = State0) when is_atom(Type) -> +do_server_hello(Type, NextProtocolsToSend, #state{negotiated_version = Version, + session = #session{session_id = SessId}, + connection_states = ConnectionStates0, + renegotiation = {Renegotiation, _}} + = State0) when is_atom(Type) -> ServerHello = ssl_handshake:server_hello(SessId, Version, - ConnectionStates0, Renegotiation), - State = server_hello(ServerHello, State0), - + ConnectionStates0, Renegotiation, NextProtocolsToSend), + State = server_hello(ServerHello, + State0#state{expecting_next_protocol_negotiation = + NextProtocolsToSend =/= undefined}), case Type of new -> new_server_hello(ServerHello, State); @@ -1539,12 +1555,33 @@ request_client_cert(#state{ssl_options = #ssl_options{verify = verify_none}} = State. finalize_handshake(State, StateName) -> - ConnectionStates0 = cipher_protocol(State), + ConnectionStates0 = cipher_protocol(State), + ConnectionStates = ssl_record:activate_pending_connection_state(ConnectionStates0, write), - finished(State#state{connection_states = ConnectionStates}, StateName). - + + State1 = State#state{connection_states = ConnectionStates}, + State2 = next_protocol(State1), + finished(State2, StateName). + +next_protocol(#state{role = server} = State) -> + State; +next_protocol(#state{next_protocol = undefined} = State) -> + State; +next_protocol(#state{expecting_next_protocol_negotiation = false} = State) -> + State; +next_protocol(#state{transport_cb = Transport, socket = Socket, + negotiated_version = Version, + next_protocol = NextProtocol, + connection_states = ConnectionStates0, + tls_handshake_history = Handshake0} = State) -> + NextProtocolMessage = ssl_handshake:next_protocol(NextProtocol), + {BinMsg, ConnectionStates, Handshake} = encode_handshake(NextProtocolMessage, Version, ConnectionStates0, Handshake0), + Transport:send(Socket, BinMsg), + State#state{connection_states = ConnectionStates, + tls_handshake_history = Handshake}. + cipher_protocol(#state{connection_states = ConnectionStates0, socket = Socket, negotiated_version = Version, @@ -1729,10 +1766,11 @@ passive_receive(State0 = #state{user_data_buffer = Buffer}, StateName) -> end. read_application_data(Data, #state{user_application = {_Mon, Pid}, - socket_options = SOpts, - bytes_to_read = BytesToRead, - start_or_recv_from = RecvFrom, - user_data_buffer = Buffer0} = State0) -> + socket = Socket, + socket_options = SOpts, + bytes_to_read = BytesToRead, + start_or_recv_from = RecvFrom, + user_data_buffer = Buffer0} = State0) -> Buffer1 = if Buffer0 =:= <<>> -> Data; Data =:= <<>> -> Buffer0; @@ -1740,7 +1778,7 @@ read_application_data(Data, #state{user_application = {_Mon, Pid}, end, case get_data(SOpts, BytesToRead, Buffer1) of {ok, ClientData, Buffer} -> % Send data - SocketOpt = deliver_app_data(SOpts, ClientData, Pid, RecvFrom), + SocketOpt = deliver_app_data(Socket, SOpts, ClientData, Pid, RecvFrom), State = State0#state{user_data_buffer = Buffer, start_or_recv_from = undefined, bytes_to_read = 0, @@ -1757,7 +1795,7 @@ read_application_data(Data, #state{user_application = {_Mon, Pid}, {more, Buffer} -> % no reply, we need more data next_record(State0#state{user_data_buffer = Buffer}); {error,_Reason} -> %% Invalid packet in packet mode - deliver_packet_error(SOpts, Buffer1, Pid, RecvFrom), + deliver_packet_error(Socket, SOpts, Buffer1, Pid, RecvFrom), {stop, normal, State0} end. @@ -1836,9 +1874,9 @@ decode_packet(Type, Buffer, PacketOpts) -> %% Note that if the user has explicitly configured the socket to expect %% HTTP headers using the {packet, httph} option, we don't do any automatic %% switching of states. -deliver_app_data(SOpts = #socket_options{active=Active, packet=Type}, - Data, Pid, From) -> - send_or_reply(Active, Pid, From, format_reply(SOpts, Data)), +deliver_app_data(Socket, SOpts = #socket_options{active=Active, packet=Type}, + Data, Pid, From) -> + send_or_reply(Active, Pid, From, format_reply(Socket, SOpts, Data)), SO = case Data of {P, _, _, _} when ((P =:= http_request) or (P =:= http_response)), ((Type =:= http) or (Type =:= http_bin)) -> @@ -1857,31 +1895,31 @@ deliver_app_data(SOpts = #socket_options{active=Active, packet=Type}, SO end. -format_reply(#socket_options{active = false, mode = Mode, packet = Packet, +format_reply(_,#socket_options{active = false, mode = Mode, packet = Packet, header = Header}, Data) -> - {ok, format_reply(Mode, Packet, Header, Data)}; -format_reply(#socket_options{active = _, mode = Mode, packet = Packet, + {ok, do_format_reply(Mode, Packet, Header, Data)}; +format_reply(Socket, #socket_options{active = _, mode = Mode, packet = Packet, header = Header}, Data) -> - {ssl, sslsocket(), format_reply(Mode, Packet, Header, Data)}. + {ssl, sslsocket(self(), Socket), do_format_reply(Mode, Packet, Header, Data)}. -deliver_packet_error(SO= #socket_options{active = Active}, Data, Pid, From) -> - send_or_reply(Active, Pid, From, format_packet_error(SO, Data)). +deliver_packet_error(Socket, SO= #socket_options{active = Active}, Data, Pid, From) -> + send_or_reply(Active, Pid, From, format_packet_error(Socket, SO, Data)). -format_packet_error(#socket_options{active = false, mode = Mode}, Data) -> - {error, {invalid_packet, format_reply(Mode, raw, 0, Data)}}; -format_packet_error(#socket_options{active = _, mode = Mode}, Data) -> - {ssl_error, sslsocket(), {invalid_packet, format_reply(Mode, raw, 0, Data)}}. +format_packet_error(_,#socket_options{active = false, mode = Mode}, Data) -> + {error, {invalid_packet, do_format_reply(Mode, raw, 0, Data)}}; +format_packet_error(Socket, #socket_options{active = _, mode = Mode}, Data) -> + {ssl_error, sslsocket(self(), Socket), {invalid_packet, do_format_reply(Mode, raw, 0, Data)}}. -format_reply(binary, _, N, Data) when N > 0 -> % Header mode +do_format_reply(binary, _, N, Data) when N > 0 -> % Header mode header(N, Data); -format_reply(binary, _, _, Data) -> +do_format_reply(binary, _, _, Data) -> Data; -format_reply(list, Packet, _, Data) +do_format_reply(list, Packet, _, Data) when Packet == http; Packet == {http, headers}; Packet == http_bin; Packet == {http_bin, headers}; Packet == httph; Packet == httph_bin -> Data; -format_reply(list, _,_, Data) -> +do_format_reply(list, _,_, Data) -> binary_to_list(Data). header(0, <<>>) -> @@ -2052,8 +2090,8 @@ next_state_is_connection(_, State = next_state_is_connection(StateName, State0) -> {Record, State} = next_record_if_active(State0), next_state(StateName, connection, Record, State#state{premaster_secret = undefined, - public_key_info = undefined, - tls_handshake_history = ssl_handshake:init_handshake_history()}). + public_key_info = undefined, + tls_handshake_history = ssl_handshake:init_handshake_history()}). register_session(client, Host, Port, #session{is_resumable = new} = Session0) -> Session = Session0#session{is_resumable = true}, @@ -2111,11 +2149,8 @@ initial_state(Role, Host, Port, Socket, {SSLOptions, SocketOptions}, User, send_queue = queue:new() }. -sslsocket(Pid) -> - #sslsocket{pid = Pid, fd = new_ssl}. - -sslsocket() -> - sslsocket(self()). +sslsocket(Pid, Socket) -> + #sslsocket{pid = Pid, fd = Socket}. get_socket_opts(_,[], _, Acc) -> {ok, Acc}; @@ -2211,12 +2246,12 @@ handle_alerts([Alert | Alerts], {next_state, StateName, State, _Timeout}) -> handle_alerts(Alerts, handle_alert(Alert, StateName, State)). handle_alert(#alert{level = ?FATAL} = Alert, StateName, - #state{start_or_recv_from = From, host = Host, port = Port, session = Session, - user_application = {_Mon, Pid}, + #state{socket = Socket, start_or_recv_from = From, host = Host, + port = Port, session = Session, user_application = {_Mon, Pid}, log_alert = Log, role = Role, socket_options = Opts} = State) -> invalidate_session(Role, Host, Port, Session), log_alert(Log, StateName, Alert), - alert_user(StateName, Opts, Pid, From, Alert, Role), + alert_user(Socket, StateName, Opts, Pid, From, Alert, Role), {stop, normal, State}; handle_alert(#alert{level = ?WARNING, description = ?CLOSE_NOTIFY} = Alert, @@ -2243,28 +2278,28 @@ handle_alert(#alert{level = ?WARNING, description = ?USER_CANCELED} = Alert, Sta {Record, State} = next_record(State0), next_state(StateName, StateName, Record, State). -alert_user(connection, Opts, Pid, From, Alert, Role) -> - alert_user(Opts#socket_options.active, Pid, From, Alert, Role); -alert_user(_, _, _, From, Alert, Role) -> - alert_user(From, Alert, Role). +alert_user(Socket, connection, Opts, Pid, From, Alert, Role) -> + alert_user(Socket, Opts#socket_options.active, Pid, From, Alert, Role); +alert_user(Socket,_, _, _, From, Alert, Role) -> + alert_user(Socket, From, Alert, Role). -alert_user(From, Alert, Role) -> - alert_user(false, no_pid, From, Alert, Role). +alert_user(Socket, From, Alert, Role) -> + alert_user(Socket, false, no_pid, From, Alert, Role). -alert_user(false = Active, Pid, From, Alert, Role) -> +alert_user(_Socket, false = Active, Pid, From, Alert, Role) -> %% If there is an outstanding ssl_accept | recv %% From will be defined and send_or_reply will %% send the appropriate error message. ReasonCode = ssl_alert:reason_code(Alert, Role), send_or_reply(Active, Pid, From, {error, ReasonCode}); -alert_user(Active, Pid, From, Alert, Role) -> +alert_user(Socket, Active, Pid, From, Alert, Role) -> case ssl_alert:reason_code(Alert, Role) of closed -> send_or_reply(Active, Pid, From, - {ssl_closed, sslsocket()}); + {ssl_closed, sslsocket(self(), Socket)}); ReasonCode -> send_or_reply(Active, Pid, From, - {ssl_error, sslsocket(), ReasonCode}) + {ssl_error, sslsocket(self(), Socket), ReasonCode}) end. log_alert(true, Info, Alert) -> @@ -2294,13 +2329,16 @@ handle_own_alert(Alert, Version, StateName, end, {stop, {shutdown, own_alert}, State}. -handle_normal_shutdown(Alert, _, #state{start_or_recv_from = StartFrom, role = Role, renegotiation = {false, first}}) -> - alert_user(StartFrom, Alert, Role); +handle_normal_shutdown(Alert, _, #state{socket = Socket, + start_or_recv_from = StartFrom, + role = Role, renegotiation = {false, first}}) -> + alert_user(Socket, StartFrom, Alert, Role); -handle_normal_shutdown(Alert, StateName, #state{socket_options = Opts, +handle_normal_shutdown(Alert, StateName, #state{socket = Socket, + socket_options = Opts, user_application = {_Mon, Pid}, start_or_recv_from = RecvFrom, role = Role}) -> - alert_user(StateName, Opts, Pid, RecvFrom, Alert, Role). + alert_user(Socket, StateName, Opts, Pid, RecvFrom, Alert, Role). handle_unexpected_message(Msg, Info, #state{negotiated_version = Version} = State) -> Alert = ?ALERT_REC(?FATAL,?UNEXPECTED_MESSAGE), diff --git a/lib/ssl/src/ssl_handshake.erl b/lib/ssl/src/ssl_handshake.erl index bb26302fff..db21dac942 100644 --- a/lib/ssl/src/ssl_handshake.erl +++ b/lib/ssl/src/ssl_handshake.erl @@ -30,21 +30,21 @@ -include("ssl_internal.hrl"). -include_lib("public_key/include/public_key.hrl"). --export([master_secret/4, client_hello/8, server_hello/4, hello/4, +-export([master_secret/4, client_hello/8, server_hello/5, hello/4, hello_request/0, certify/7, certificate/4, client_certificate_verify/6, certificate_verify/6, certificate_request/3, key_exchange/3, server_key_exchange_hash/2, finished/5, verify_connection/6, get_tls_handshake/3, decode_client_key/3, server_hello_done/0, encode_handshake/2, init_handshake_history/0, update_handshake_history/2, - decrypt_premaster_secret/2, prf/5]). + decrypt_premaster_secret/2, prf/5, next_protocol/1]). -export([dec_hello_extensions/2]). -type tls_handshake() :: #client_hello{} | #server_hello{} | #server_hello_done{} | #certificate{} | #certificate_request{} | #client_key_exchange{} | #finished{} | #certificate_verify{} | - #hello_request{}. + #hello_request{} | #next_protocol{}. %%==================================================================== %% Internal application API @@ -77,18 +77,31 @@ client_hello(Host, Port, ConnectionStates, cipher_suites = cipher_suites(Ciphers, Renegotiation), compression_methods = ssl_record:compressions(), random = SecParams#security_parameters.client_random, + renegotiation_info = renegotiation_info(client, ConnectionStates, Renegotiation), - hash_signs = default_hash_signs() + hash_signs = default_hash_signs(), + next_protocol_negotiation = + encode_client_protocol_negotiation(SslOpts#ssl_options.next_protocol_selector, Renegotiation) }. +encode_protocol(Protocol, Acc) -> + Len = byte_size(Protocol), + <<Acc/binary, ?BYTE(Len), Protocol/binary>>. + +encode_protocols_advertised_on_server(undefined) -> + undefined; + +encode_protocols_advertised_on_server(Protocols) -> + #next_protocol_negotiation{extension_data = lists:foldl(fun encode_protocol/2, <<>>, Protocols)}. + %%-------------------------------------------------------------------- -spec server_hello(session_id(), tls_version(), #connection_states{}, - boolean()) -> #server_hello{}. + boolean(), [binary()] | undefined) -> #server_hello{}. %% %% Description: Creates a server hello message. %%-------------------------------------------------------------------- -server_hello(SessionId, Version, ConnectionStates, Renegotiation) -> +server_hello(SessionId, Version, ConnectionStates, Renegotiation, ProtocolsAdvertisedOnServer) -> Pending = ssl_record:pending_connection_state(ConnectionStates, read), SecParams = Pending#connection_state.security_parameters, #server_hello{server_version = Version, @@ -98,7 +111,8 @@ server_hello(SessionId, Version, ConnectionStates, Renegotiation) -> random = SecParams#security_parameters.server_random, session_id = SessionId, renegotiation_info = - renegotiation_info(server, ConnectionStates, Renegotiation) + renegotiation_info(server, ConnectionStates, Renegotiation), + next_protocol_negotiation = encode_protocols_advertised_on_server(ProtocolsAdvertisedOnServer) }. %%-------------------------------------------------------------------- @@ -113,20 +127,21 @@ hello_request() -> %%-------------------------------------------------------------------- -spec hello(#server_hello{} | #client_hello{}, #ssl_options{}, #connection_states{} | {inet:port_number(), #session{}, db_handle(), - atom(), #connection_states{}, binary()}, - boolean()) -> {tls_version(), session_id(), #connection_states{}}| - {tls_version(), {resumed | new, #session{}}, - #connection_states{}} | #alert{}. + atom(), #connection_states{}, binary()}, + boolean()) -> + {tls_version(), session_id(), #connection_states{}, binary() | undefined}| + {tls_version(), {resumed | new, #session{}}, #connection_states{}, list(binary()) | undefined} | + #alert{}. %% %% Description: Handles a recieved hello message %%-------------------------------------------------------------------- hello(#server_hello{cipher_suite = CipherSuite, server_version = Version, compression_method = Compression, random = Random, session_id = SessionId, renegotiation_info = Info, - hash_signs = _HashSigns}, - #ssl_options{secure_renegotiate = SecureRenegotation}, + hash_signs = _HashSigns} = Hello, + #ssl_options{secure_renegotiate = SecureRenegotation, next_protocol_selector = NextProtocolSelector}, ConnectionStates0, Renegotiation) -> -%%TODO: select hash and signature algorigthm + %%TODO: select hash and signature algorigthm case ssl_record:is_acceptable_version(Version) of true -> case handle_renegotiation_info(client, Info, ConnectionStates0, @@ -135,7 +150,12 @@ hello(#server_hello{cipher_suite = CipherSuite, server_version = Version, ConnectionStates = hello_pending_connection_states(client, Version, CipherSuite, Random, Compression, ConnectionStates1), - {Version, SessionId, ConnectionStates}; + case handle_next_protocol(Hello, NextProtocolSelector, Renegotiation) of + #alert{} = Alert -> + Alert; + Protocol -> + {Version, SessionId, ConnectionStates, Protocol} + end; #alert{} = Alert -> Alert end; @@ -145,9 +165,8 @@ hello(#server_hello{cipher_suite = CipherSuite, server_version = Version, hello(#client_hello{client_version = ClientVersion, random = Random, cipher_suites = CipherSuites, - renegotiation_info = Info, - hash_signs = _HashSigns} = Hello, - #ssl_options{versions = Versions, + renegotiation_info = Info} = Hello, + #ssl_options{versions = Versions, secure_renegotiate = SecureRenegotation} = SslOpts, {Port, Session0, Cache, CacheCb, ConnectionStates0, Cert}, Renegotiation) -> %% TODO: select hash and signature algorithm @@ -173,7 +192,12 @@ hello(#client_hello{client_version = ClientVersion, random = Random, Random, Compression, ConnectionStates1), - {Version, {Type, Session}, ConnectionStates}; + case handle_next_protocol_on_server(Hello, Renegotiation, SslOpts) of + #alert{} = Alert -> + Alert; + ProtocolsToAdvertise -> + {Version, {Type, Session}, ConnectionStates, ProtocolsToAdvertise} + end; #alert{} = Alert -> Alert end @@ -427,6 +451,11 @@ master_secret(Version, PremasterSecret, ConnectionStates, Role) -> ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE) end. +-spec next_protocol(binary()) -> #next_protocol{}. + +next_protocol(SelectedProtocol) -> + #next_protocol{selected_protocol = SelectedProtocol}. + %%-------------------------------------------------------------------- -spec finished(tls_version(), client | server, integer(), binary(), tls_handshake_history()) -> #finished{}. @@ -660,6 +689,57 @@ renegotiation_info(server, ConnectionStates, true) -> #renegotiation_info{renegotiated_connection = undefined} end. +decode_next_protocols({next_protocol_negotiation, Protocols}) -> + decode_next_protocols(Protocols, []). +decode_next_protocols(<<>>, Acc) -> + lists:reverse(Acc); +decode_next_protocols(<<?BYTE(Len), Protocol:Len/binary, Rest/binary>>, Acc) -> + case Len of + 0 -> + {error, invalid_next_protocols}; + _ -> + decode_next_protocols(Rest, [Protocol|Acc]) + end; +decode_next_protocols(_Bytes, _Acc) -> + {error, invalid_next_protocols}. + +next_protocol_extension_allowed(NextProtocolSelector, Renegotiating) -> + NextProtocolSelector =/= undefined andalso not Renegotiating. + +handle_next_protocol_on_server(#client_hello{next_protocol_negotiation = undefined}, _Renegotiation, _SslOpts) -> + undefined; + +handle_next_protocol_on_server(#client_hello{next_protocol_negotiation = {next_protocol_negotiation, <<>>}}, + false, #ssl_options{next_protocols_advertised = Protocols}) -> + Protocols; + +handle_next_protocol_on_server(_Hello, _Renegotiation, _SSLOpts) -> + ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE). % unexpected next protocol extension + +handle_next_protocol(#server_hello{next_protocol_negotiation = undefined}, + _NextProtocolSelector, _Renegotiating) -> + undefined; + +handle_next_protocol(#server_hello{next_protocol_negotiation = Protocols}, + NextProtocolSelector, Renegotiating) -> + + case next_protocol_extension_allowed(NextProtocolSelector, Renegotiating) of + true -> + select_next_protocol(decode_next_protocols(Protocols), NextProtocolSelector); + false -> + ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE) % unexpected next protocol extension + end. + +select_next_protocol({error, _Reason}, _NextProtocolSelector) -> + ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE); +select_next_protocol(Protocols, NextProtocolSelector) -> + case NextProtocolSelector(Protocols) of + ?NO_PROTOCOL -> + ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE); + Protocol when is_binary(Protocol) -> + Protocol + end. + handle_renegotiation_info(_, #renegotiation_info{renegotiated_connection = ?byte(0)}, ConnectionStates, false, _, _) -> {ok, ssl_record:set_renegotiation_flag(true, ConnectionStates)}; @@ -816,17 +896,21 @@ master_secret(Version, MasterSecret, #security_parameters{ ServerCipherState, Role)}. -dec_hs(_Version, ?HELLO_REQUEST, <<>>) -> +dec_hs(_, ?NEXT_PROTOCOL, <<?BYTE(SelectedProtocolLength), SelectedProtocol:SelectedProtocolLength/binary, + ?BYTE(PaddingLength), _Padding:PaddingLength/binary>>) -> + #next_protocol{selected_protocol = SelectedProtocol}; + +dec_hs(_, ?HELLO_REQUEST, <<>>) -> #hello_request{}; %% Client hello v2. %% The server must be able to receive such messages, from clients that %% are willing to use ssl v3 or higher, but have ssl v2 compatibility. dec_hs(_Version, ?CLIENT_HELLO, <<?BYTE(Major), ?BYTE(Minor), - ?UINT16(CSLength), ?UINT16(0), - ?UINT16(CDLength), - CipherSuites:CSLength/binary, - ChallengeData:CDLength/binary>>) -> + ?UINT16(CSLength), ?UINT16(0), + ?UINT16(CDLength), + CipherSuites:CSLength/binary, + ChallengeData:CDLength/binary>>) -> #client_hello{client_version = {Major, Minor}, random = ssl_ssl2:client_random(ChallengeData, CDLength), session_id = 0, @@ -839,20 +923,22 @@ dec_hs(_Version, ?CLIENT_HELLO, <<?BYTE(Major), ?BYTE(Minor), Random:32/binary, ?UINT16(Cs_length), CipherSuites:Cs_length/binary, ?BYTE(Cm_length), Comp_methods:Cm_length/binary, Extensions/binary>>) -> - HelloExtensions = dec_hello_extensions(Extensions), - RenegotiationInfo = proplists:get_value(renegotiation_info, HelloExtensions, - undefined), - HashSigns = proplists:get_value(hash_signs, HelloExtensions, - undefined), + + DecodedExtensions = dec_hello_extensions(Extensions), + RenegotiationInfo = proplists:get_value(renegotiation_info, DecodedExtensions, undefined), + HashSigns = proplists:get_value(hash_signs, DecodedExtensions, undefined), + NextProtocolNegotiation = proplists:get_value(next_protocol_negotiation, DecodedExtensions, undefined), + #client_hello{ - client_version = {Major,Minor}, - random = Random, - session_id = Session_ID, - cipher_suites = from_2bytes(CipherSuites), - compression_methods = Comp_methods, - renegotiation_info = RenegotiationInfo, - hash_signs = HashSigns - }; + client_version = {Major,Minor}, + random = Random, + session_id = Session_ID, + cipher_suites = from_2bytes(CipherSuites), + compression_methods = Comp_methods, + renegotiation_info = RenegotiationInfo, + hash_signs = HashSigns, + next_protocol_negotiation = NextProtocolNegotiation + }; dec_hs(_Version, ?SERVER_HELLO, <<?BYTE(Major), ?BYTE(Minor), Random:32/binary, ?BYTE(SID_length), Session_ID:SID_length/binary, @@ -868,7 +954,7 @@ dec_hs(_Version, ?SERVER_HELLO, <<?BYTE(Major), ?BYTE(Minor), Random:32/binary, dec_hs(_Version, ?SERVER_HELLO, <<?BYTE(Major), ?BYTE(Minor), Random:32/binary, ?BYTE(SID_length), Session_ID:SID_length/binary, - Cipher_suite:2/binary, ?BYTE(Comp_method), + Cipher_suite:2/binary, ?BYTE(Comp_method), ?UINT16(ExtLen), Extensions:ExtLen/binary>>) -> HelloExtensions = dec_hello_extensions(Extensions, []), @@ -876,6 +962,8 @@ dec_hs(_Version, ?SERVER_HELLO, <<?BYTE(Major), ?BYTE(Minor), Random:32/binary, undefined), HashSigns = proplists:get_value(hash_signs, HelloExtensions, undefined), + NextProtocolNegotiation = proplists:get_value(next_protocol_negotiation, HelloExtensions, undefined), + #server_hello{ server_version = {Major,Minor}, random = Random, @@ -883,7 +971,8 @@ dec_hs(_Version, ?SERVER_HELLO, <<?BYTE(Major), ?BYTE(Minor), Random:32/binary, cipher_suite = Cipher_suite, compression_method = Comp_method, renegotiation_info = RenegotiationInfo, - hash_signs = HashSigns}; + hash_signs = HashSigns, + next_protocol_negotiation = NextProtocolNegotiation}; dec_hs(_Version, ?CERTIFICATE, <<?UINT24(ACLen), ASN1Certs:ACLen/binary>>) -> #certificate{asn1_certificates = certs_to_list(ASN1Certs)}; @@ -959,6 +1048,9 @@ dec_hello_extensions(_) -> dec_hello_extensions(<<>>, Acc) -> Acc; +dec_hello_extensions(<<?UINT16(?NEXTPROTONEG_EXT), ?UINT16(Len), ExtensionData:Len/binary, Rest/binary>>, Acc) -> + Prop = {next_protocol_negotiation, #next_protocol_negotiation{extension_data = ExtensionData}}, + dec_hello_extensions(Rest, [Prop | Acc]); dec_hello_extensions(<<?UINT16(?RENEGOTIATION_EXT), ?UINT16(Len), Info:Len/binary, Rest/binary>>, Acc) -> RenegotiateInfo = case Len of 1 -> % Initial handshake @@ -982,6 +1074,7 @@ dec_hello_extensions(<<?UINT16(?SIGNATURE_ALGORITHMS_EXT), ?UINT16(Len), %% Ignore data following the ClientHello (i.e., %% extensions) if not understood. + dec_hello_extensions(<<?UINT16(_), ?UINT16(Len), _Unknown:Len/binary, Rest/binary>>, Acc) -> dec_hello_extensions(Rest, Acc); %% This theoretically should not happen if the protocol is followed, but if it does it is ignored. @@ -1014,6 +1107,11 @@ certs_from_list(ACList) -> <<?UINT24(CertLen), Cert/binary>> end || Cert <- ACList]). +enc_hs(#next_protocol{selected_protocol = SelectedProtocol}, _Version) -> + PaddingLength = 32 - ((byte_size(SelectedProtocol) + 2) rem 32), + + {?NEXT_PROTOCOL, <<?BYTE((byte_size(SelectedProtocol))), SelectedProtocol/binary, + ?BYTE(PaddingLength), 0:(PaddingLength * 8)>>}; enc_hs(#hello_request{}, _Version) -> {?HELLO_REQUEST, <<>>}; enc_hs(#client_hello{client_version = {Major, Minor}, @@ -1022,19 +1120,21 @@ enc_hs(#client_hello{client_version = {Major, Minor}, cipher_suites = CipherSuites, compression_methods = CompMethods, renegotiation_info = RenegotiationInfo, - hash_signs = HashSigns}, _Version) -> + hash_signs = HashSigns, + next_protocol_negotiation = NextProtocolNegotiation}, _Version) -> SIDLength = byte_size(SessionID), BinCompMethods = list_to_binary(CompMethods), CmLength = byte_size(BinCompMethods), BinCipherSuites = list_to_binary(CipherSuites), CsLength = byte_size(BinCipherSuites), - Extensions0 = hello_extensions(RenegotiationInfo), + Extensions0 = hello_extensions(RenegotiationInfo, NextProtocolNegotiation), Extensions1 = if Major == 3, Minor >=3 -> Extensions0 ++ hello_extensions(HashSigns); true -> Extensions0 end, ExtensionsBin = enc_hello_extensions(Extensions1), - {?CLIENT_HELLO, <<?BYTE(Major), ?BYTE(Minor), Random:32/binary, + + {?CLIENT_HELLO, <<?BYTE(Major), ?BYTE(Minor), Random:32/binary, ?BYTE(SIDLength), SessionID/binary, ?UINT16(CsLength), BinCipherSuites/binary, ?BYTE(CmLength), BinCompMethods/binary, ExtensionsBin/binary>>}; @@ -1044,9 +1144,10 @@ enc_hs(#server_hello{server_version = {Major, Minor}, session_id = Session_ID, cipher_suite = Cipher_suite, compression_method = Comp_method, - renegotiation_info = RenegotiationInfo}, _Version) -> + renegotiation_info = RenegotiationInfo, + next_protocol_negotiation = NextProtocolNegotiation}, _Version) -> SID_length = byte_size(Session_ID), - Extensions = hello_extensions(RenegotiationInfo), + Extensions = hello_extensions(RenegotiationInfo, NextProtocolNegotiation), ExtensionsBin = enc_hello_extensions(Extensions), {?SERVER_HELLO, <<?BYTE(Major), ?BYTE(Minor), Random:32/binary, ?BYTE(SID_length), Session_ID/binary, @@ -1119,8 +1220,9 @@ enc_sign(_HashSign, Sign, _Version) -> SignLen = byte_size(Sign), <<?UINT16(SignLen), Sign/binary>>. -hello_extensions(undefined) -> - []; +hello_extensions(RenegotiationInfo, NextProtocolNegotiation) -> + hello_extensions(RenegotiationInfo) ++ next_protocol_extension(NextProtocolNegotiation). + %% Renegotiation info hello_extensions(#renegotiation_info{renegotiated_connection = undefined}) -> []; @@ -1129,6 +1231,11 @@ hello_extensions(#renegotiation_info{} = Info) -> hello_extensions(#hash_sign_algos{} = Info) -> [Info]. +next_protocol_extension(undefined) -> + []; +next_protocol_extension(#next_protocol_negotiation{} = Info) -> + [Info]. + enc_hello_extensions(Extensions) -> enc_hello_extensions(Extensions, <<>>). enc_hello_extensions([], <<>>) -> @@ -1137,6 +1244,9 @@ enc_hello_extensions([], Acc) -> Size = byte_size(Acc), <<?UINT16(Size), Acc/binary>>; +enc_hello_extensions([#next_protocol_negotiation{extension_data = ExtensionData} | Rest], Acc) -> + Len = byte_size(ExtensionData), + enc_hello_extensions(Rest, <<?UINT16(?NEXTPROTONEG_EXT), ?UINT16(Len), ExtensionData/binary, Acc/binary>>); enc_hello_extensions([#renegotiation_info{renegotiated_connection = ?byte(0) = Info} | Rest], Acc) -> Len = byte_size(Info), enc_hello_extensions(Rest, <<?UINT16(?RENEGOTIATION_EXT), ?UINT16(Len), Info/binary, Acc/binary>>); @@ -1151,8 +1261,15 @@ enc_hello_extensions([#hash_sign_algos{hash_sign_algos = HashSignAlgos} | Rest], {Hash, Sign} <- HashSignAlgos >>, ListLen = byte_size(SignAlgoList), Len = ListLen + 2, - enc_hello_extensions(Rest, <<?UINT16(?SIGNATURE_ALGORITHMS_EXT), ?UINT16(Len), ?UINT16(ListLen), SignAlgoList/binary, Acc/binary>>). + enc_hello_extensions(Rest, <<?UINT16(?SIGNATURE_ALGORITHMS_EXT), + ?UINT16(Len), ?UINT16(ListLen), SignAlgoList/binary, Acc/binary>>). +encode_client_protocol_negotiation(undefined, _) -> + undefined; +encode_client_protocol_negotiation(_, false) -> + #next_protocol_negotiation{extension_data = <<>>}; +encode_client_protocol_negotiation(_, _) -> + undefined. from_3bytes(Bin3) -> from_3bytes(Bin3, []). @@ -1284,6 +1401,7 @@ default_hash_signs() -> [?TLSEXT_SIGALG(sha512), ?TLSEXT_SIGALG(sha384), ?TLSEXT_SIGALG(sha256), + ?TLSEXT_SIGALG(sha224), ?TLSEXT_SIGALG(sha), ?TLSEXT_SIGALG_DSA(sha), ?TLSEXT_SIGALG_RSA(md5)]}. diff --git a/lib/ssl/src/ssl_handshake.hrl b/lib/ssl/src/ssl_handshake.hrl index cc17dc2975..9af6511d68 100644 --- a/lib/ssl/src/ssl_handshake.hrl +++ b/lib/ssl/src/ssl_handshake.hrl @@ -33,6 +33,8 @@ -type public_key_info() :: {algo_oid(), #'RSAPublicKey'{} | integer() , public_key_params()}. -type tls_handshake_history() :: {[binary()], [binary()]}. +-define(NO_PROTOCOL, <<>>). + %% Signature algorithms -define(ANON, 0). -define(RSA, 1). @@ -97,7 +99,8 @@ cipher_suites, % cipher_suites<2..2^16-1> compression_methods, % compression_methods<1..2^8-1>, renegotiation_info, - hash_signs % supported combinations of hashes/signature algos + hash_signs, % supported combinations of hashes/signature algos + next_protocol_negotiation = undefined % [binary()] }). -record(server_hello, { @@ -107,7 +110,8 @@ cipher_suite, % cipher_suites compression_method, % compression_method renegotiation_info, - hash_signs % supported combinations of hashes/signature algos + hash_signs, % supported combinations of hashes/signature algos + next_protocol_negotiation = undefined % [binary()] }). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @@ -234,6 +238,18 @@ hash_sign_algos }). +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +%% Next Protocol Negotiation +%% (http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-02) +%% (http://technotes.googlecode.com/git/nextprotoneg.html) +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +-define(NEXTPROTONEG_EXT, 13172). +-define(NEXT_PROTOCOL, 67). +-record(next_protocol_negotiation, {extension_data}). + +-record(next_protocol, {selected_protocol}). + -endif. % -ifdef(ssl_handshake). diff --git a/lib/ssl/src/ssl_internal.hrl b/lib/ssl/src/ssl_internal.hrl index b8f2ae3b51..a5db2dcee7 100644 --- a/lib/ssl/src/ssl_internal.hrl +++ b/lib/ssl/src/ssl_internal.hrl @@ -106,7 +106,9 @@ % after which ssl_connection will % go into hibernation %% This option should only be set to true by inet_tls_dist - erl_dist = false + erl_dist = false, + next_protocols_advertised = undefined, %% [binary()], + next_protocol_selector = undefined %% fun([binary()]) -> binary()) }). -record(socket_options, |