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-rw-r--r--lib/ssl/src/ssl.erl195
-rw-r--r--lib/ssl/src/ssl_connection.erl224
-rw-r--r--lib/ssl/src/ssl_handshake.erl213
-rw-r--r--lib/ssl/src/ssl_handshake.hrl20
-rw-r--r--lib/ssl/src/ssl_internal.hrl4
5 files changed, 471 insertions, 185 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 c1086a09ef..407ec14b0a 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..fa1784714f 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, []).
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,