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authorIngela Anderton Andin <[email protected]>2019-03-06 12:54:03 +0100
committerIngela Anderton Andin <[email protected]>2019-03-11 11:25:47 +0100
commit5a7cfb2d571d95829848cfa6e20066d19c9a4800 (patch)
tree6f0021c63c71478815a6278e14699ff61b2aca2f
parent6842a1c9af46297021b4c9c37eb8dd2a62eec59c (diff)
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ssl: Fix transport transparancy
-rw-r--r--lib/ssl/doc/src/ssl.xml25
-rw-r--r--lib/ssl/src/ssl.erl77
-rw-r--r--lib/ssl/src/ssl_connection.hrl1
-rw-r--r--lib/ssl/src/tls_connection.erl12
-rw-r--r--lib/ssl/src/tls_socket.erl10
-rw-r--r--lib/ssl/test/ssl_basic_SUITE.erl2
6 files changed, 82 insertions, 45 deletions
diff --git a/lib/ssl/doc/src/ssl.xml b/lib/ssl/doc/src/ssl.xml
index 90a9181ede..24d063e1bd 100644
--- a/lib/ssl/doc/src/ssl.xml
+++ b/lib/ssl/doc/src/ssl.xml
@@ -101,16 +101,21 @@
<datatype>
<name name="transport_option"/>
<desc>
- <p>Defaults to <c>{gen_tcp, tcp, tcp_closed, tcp_error}</c>
- for TLS and <c>{gen_udp, udp, udp_closed, udp_error}</c> for
- DTLS. Can be used to customize the transport layer. The tag
- values should be the values used by the underlying transport
- in its active mode messages. For TLS the callback module must implement a
- reliable transport protocol, behave as <c>gen_tcp</c>, and have functions
- corresponding to <c>inet:setopts/2</c>, <c>inet:getopts/2</c>,
- <c>inet:peername/1</c>, <c>inet:sockname/1</c>, and <c>inet:port/1</c>.
- The callback <c>gen_tcp</c> is treated specially and calls <c>inet</c>
- directly. For DTLS this feature must be considered exprimental.
+ <p>Defaults to <c>{gen_tcp, tcp, tcp_closed, tcp_error,
+ tcp_passive}</c> for TLS (for backward compatibility a four
+ tuple will be converted to a five tuple with the last element
+ "second_element"_passive) and <c>{gen_udp, udp, udp_closed,
+ udp_error}</c> for DTLS (might also be changed to five tuple in
+ the future). Can be used to customize the transport layer. The
+ tag values should be the values used by the underlying
+ transport in its active mode messages. For TLS the callback
+ module must implement a reliable transport protocol, behave as
+ <c>gen_tcp</c>, and have functions corresponding to
+ <c>inet:setopts/2</c>, <c>inet:getopts/2</c>,
+ <c>inet:peername/1</c>, <c>inet:sockname/1</c>, and
+ <c>inet:port/1</c>. The callback <c>gen_tcp</c> is treated
+ specially and calls <c>inet</c> directly. For DTLS this
+ feature must be considered exprimental.
</p>
</desc>
</datatype>
diff --git a/lib/ssl/src/ssl.erl b/lib/ssl/src/ssl.erl
index fb6b7ba8e8..7f8f1ec71c 100644
--- a/lib/ssl/src/ssl.erl
+++ b/lib/ssl/src/ssl.erl
@@ -94,7 +94,9 @@
-type active_msgs() :: {ssl, sslsocket(), Data::binary() | list()} | {ssl_closed, sslsocket()} |
{ssl_error, sslsocket(), Reason::term()} | {ssl_passive, sslsocket()}.
-type transport_option() :: {cb_info, {CallbackModule::atom(), DataTag::atom(),
- ClosedTag::atom(), ErrTag::atom()}}.
+ ClosedTag::atom(), ErrTag::atom()}} |
+ {cb_info, {CallbackModule::atom(), DataTag::atom(),
+ ClosedTag::atom(), ErrTag::atom(), PassiveTag::atom()}}.
-type host() :: hostname() | ip_address().
-type hostname() :: string().
-type ip_address() :: inet:ip_address().
@@ -400,9 +402,9 @@ connect(Socket, SslOptions) when is_port(Socket) ->
timeout() | list()) ->
{ok, #sslsocket{}} | {error, reason()}.
connect(Socket, SslOptions0, Timeout) when is_port(Socket),
- (is_integer(Timeout) andalso Timeout >= 0) or (Timeout == infinity) ->
- {Transport,_,_,_} = proplists:get_value(cb_info, SslOptions0,
- {gen_tcp, tcp, tcp_closed, tcp_error}),
+ (is_integer(Timeout) andalso Timeout >= 0) or (Timeout == infinity) ->
+ CbInfo = handle_option(cb_info, SslOptions0, default_cb_info(tls)),
+ Transport = element(1, CbInfo),
EmulatedOptions = tls_socket:emulated_options(),
{ok, SocketValues} = tls_socket:getopts(Transport, Socket, EmulatedOptions),
try handle_options(SslOptions0 ++ SocketValues, client) of
@@ -542,8 +544,8 @@ handshake(#sslsocket{pid = [Pid|_], fd = {_, _, _}} = Socket, SslOpts, Timeout)
end;
handshake(Socket, SslOptions, Timeout) when is_port(Socket),
(is_integer(Timeout) andalso Timeout >= 0) or (Timeout == infinity) ->
- {Transport,_,_,_} =
- proplists:get_value(cb_info, SslOptions, {gen_tcp, tcp, tcp_closed, tcp_error}),
+ CbInfo = handle_option(cb_info, SslOptions, default_cb_info(tls)),
+ Transport = element(1, CbInfo),
EmulatedOptions = tls_socket:emulated_options(),
{ok, SocketValues} = tls_socket:getopts(Transport, Socket, EmulatedOptions),
ConnetionCb = connection_cb(SslOptions),
@@ -595,7 +597,7 @@ close(#sslsocket{pid = [Pid|_]}) when is_pid(Pid) ->
ssl_connection:close(Pid, {close, ?DEFAULT_TIMEOUT});
close(#sslsocket{pid = {dtls, #config{dtls_handler = {Pid, _}}}}) ->
dtls_packet_demux:close(Pid);
-close(#sslsocket{pid = {ListenSocket, #config{transport_info={Transport,_, _, _}}}}) ->
+close(#sslsocket{pid = {ListenSocket, #config{transport_info={Transport,_,_,_,_}}}}) ->
Transport:close(ListenSocket).
%%--------------------------------------------------------------------
@@ -611,7 +613,7 @@ close(#sslsocket{pid = [TLSPid|_]},
close(#sslsocket{pid = [TLSPid|_]}, Timeout) when is_pid(TLSPid),
(is_integer(Timeout) andalso Timeout >= 0) or (Timeout == infinity) ->
ssl_connection:close(TLSPid, {close, Timeout});
-close(#sslsocket{pid = {ListenSocket, #config{transport_info={Transport,_, _, _}}}}, _) ->
+close(#sslsocket{pid = {ListenSocket, #config{transport_info={Transport,_,_,_,_}}}}, _) ->
Transport:close(ListenSocket).
%%--------------------------------------------------------------------
@@ -627,7 +629,8 @@ send(#sslsocket{pid = {_, #config{transport_info={_, udp, _, _}}}}, _) ->
{error,enotconn}; %% Emulate connection behaviour
send(#sslsocket{pid = {dtls,_}}, _) ->
{error,enotconn}; %% Emulate connection behaviour
-send(#sslsocket{pid = {ListenSocket, #config{transport_info={Transport, _, _, _}}}}, Data) ->
+send(#sslsocket{pid = {ListenSocket, #config{transport_info = Info}}}, Data) ->
+ Transport = element(1, Info),
Transport:send(ListenSocket, Data). %% {error,enotconn}
%%--------------------------------------------------------------------
@@ -645,7 +648,8 @@ recv(#sslsocket{pid = [Pid|_]}, Length, Timeout) when is_pid(Pid),
recv(#sslsocket{pid = {dtls,_}}, _, _) ->
{error,enotconn};
recv(#sslsocket{pid = {Listen,
- #config{transport_info = {Transport, _, _, _}}}}, _,_) when is_port(Listen)->
+ #config{transport_info = Info}}},_,_) when is_port(Listen)->
+ Transport = element(1, Info),
Transport:recv(Listen, 0). %% {error,enotconn}
%%--------------------------------------------------------------------
@@ -660,7 +664,7 @@ controlling_process(#sslsocket{pid = {dtls, _}},
NewOwner) when is_pid(NewOwner) ->
ok; %% Meaningless but let it be allowed to conform with TLS
controlling_process(#sslsocket{pid = {Listen,
- #config{transport_info = {Transport, _, _, _}}}},
+ #config{transport_info = {Transport,_,_,_,_}}}},
NewOwner) when is_port(Listen),
is_pid(NewOwner) ->
%% Meaningless but let it be allowed to conform with normal sockets
@@ -703,13 +707,13 @@ connection_information(#sslsocket{pid = [Pid|_]}, Items) when is_pid(Pid) ->
%%
%% Description: same as inet:peername/1.
%%--------------------------------------------------------------------
-peername(#sslsocket{pid = [Pid|_], fd = {Transport, Socket, _}}) when is_pid(Pid)->
+peername(#sslsocket{pid = [Pid|_], fd = {Transport, Socket,_}}) when is_pid(Pid)->
dtls_socket:peername(Transport, Socket);
-peername(#sslsocket{pid = [Pid|_], fd = {Transport, Socket, _, _}}) when is_pid(Pid)->
+peername(#sslsocket{pid = [Pid|_], fd = {Transport, Socket,_,_}}) when is_pid(Pid)->
tls_socket:peername(Transport, Socket);
-peername(#sslsocket{pid = {dtls, #config{dtls_handler = {_Pid, _}}}}) ->
+peername(#sslsocket{pid = {dtls, #config{dtls_handler = {_Pid,_}}}}) ->
dtls_socket:peername(dtls, undefined);
-peername(#sslsocket{pid = {ListenSocket, #config{transport_info = {Transport,_,_,_}}}}) ->
+peername(#sslsocket{pid = {ListenSocket, #config{transport_info = {Transport,_,_,_,_}}}}) ->
tls_socket:peername(Transport, ListenSocket); %% Will return {error, enotconn}
peername(#sslsocket{pid = {dtls,_}}) ->
{error,enotconn}.
@@ -886,7 +890,7 @@ getopts(#sslsocket{pid = {dtls, #config{transport_info = {Transport,_,_,_}}}} =
_:Error ->
{error, {options, {socket_options, OptionTags, Error}}}
end;
-getopts(#sslsocket{pid = {_, #config{transport_info = {Transport,_,_,_}}}} = ListenSocket,
+getopts(#sslsocket{pid = {_, #config{transport_info = {Transport,_,_,_,_}}}} = ListenSocket,
OptionTags) when is_list(OptionTags) ->
try tls_socket:getopts(Transport, ListenSocket, OptionTags) of
{ok, _} = Result ->
@@ -943,7 +947,7 @@ setopts(#sslsocket{pid = {dtls, #config{transport_info = {Transport,_,_,_}}}} =
_:Error ->
{error, {options, {socket_options, Options, Error}}}
end;
-setopts(#sslsocket{pid = {_, #config{transport_info = {Transport,_,_,_}}}} = ListenSocket, Options) when is_list(Options) ->
+setopts(#sslsocket{pid = {_, #config{transport_info = {Transport,_,_,_,_}}}} = ListenSocket, Options) when is_list(Options) ->
try tls_socket:setopts(Transport, ListenSocket, Options) of
ok ->
ok;
@@ -987,8 +991,9 @@ getstat(#sslsocket{pid = [Pid|_], fd = {Transport, Socket, _, _}}, Options) when
%%
%% Description: Same as gen_tcp:shutdown/2
%%--------------------------------------------------------------------
-shutdown(#sslsocket{pid = {Listen, #config{transport_info = {Transport,_, _, _}}}},
+shutdown(#sslsocket{pid = {Listen, #config{transport_info = Info}}},
How) when is_port(Listen) ->
+ Transport = element(1, Info),
Transport:shutdown(Listen, How);
shutdown(#sslsocket{pid = {dtls,_}},_) ->
{error, enotconn};
@@ -1000,13 +1005,13 @@ shutdown(#sslsocket{pid = [Pid|_]}, How) when is_pid(Pid) ->
%%
%% Description: Same as inet:sockname/1
%%--------------------------------------------------------------------
-sockname(#sslsocket{pid = {Listen, #config{transport_info = {Transport, _, _, _}}}}) when is_port(Listen) ->
+sockname(#sslsocket{pid = {Listen, #config{transport_info = {Transport,_,_,_,_}}}}) when is_port(Listen) ->
tls_socket:sockname(Transport, Listen);
sockname(#sslsocket{pid = {dtls, #config{dtls_handler = {Pid, _}}}}) ->
dtls_packet_demux:sockname(Pid);
-sockname(#sslsocket{pid = [Pid|_], fd = {Transport, Socket, _}}) when is_pid(Pid) ->
+sockname(#sslsocket{pid = [Pid|_], fd = {Transport, Socket,_}}) when is_pid(Pid) ->
dtls_socket:sockname(Transport, Socket);
-sockname(#sslsocket{pid = [Pid| _], fd = {Transport, Socket, _, _}}) when is_pid(Pid) ->
+sockname(#sslsocket{pid = [Pid| _], fd = {Transport, Socket,_,_}}) when is_pid(Pid) ->
tls_socket:sockname(Transport, Socket).
%%---------------------------------------------------------------
@@ -1140,7 +1145,7 @@ supported_suites(all, Version) ->
supported_suites(anonymous, Version) ->
ssl_cipher:anonymous_suites(Version).
-do_listen(Port, #config{transport_info = {Transport, _, _, _}} = Config, tls_connection) ->
+do_listen(Port, #config{transport_info = {Transport, _, _, _,_}} = Config, tls_connection) ->
tls_socket:listen(Transport, Port, Config);
do_listen(Port, Config, dtls_connection) ->
@@ -1288,7 +1293,7 @@ handle_options(Opts0, Role, Host) ->
customize_hostname_check = handle_option(customize_hostname_check, Opts, [])
},
- CbInfo = proplists:get_value(cb_info, Opts, default_cb_info(Protocol)),
+ CbInfo = handle_option(cb_info, Opts, default_cb_info(Protocol)),
SslOptions = [protocol, versions, verify, verify_fun, partial_chain,
fail_if_no_peer_cert, verify_client_once,
depth, cert, certfile, key, keyfile,
@@ -1330,6 +1335,10 @@ handle_option(sni_fun, Opts, Default) ->
_ ->
throw({error, {conflict_options, [sni_fun, sni_hosts]}})
end;
+handle_option(cb_info, Opts, Default) ->
+ CbInfo = proplists:get_value(cb_info, Opts, Default),
+ true = validate_option(cb_info, CbInfo),
+ handle_cb_info(CbInfo, Default);
handle_option(OptionName, Opts, Default) ->
validate_option(OptionName,
proplists:get_value(OptionName, Opts, Default)).
@@ -1551,9 +1560,29 @@ validate_option(handshake, full = Value) ->
Value;
validate_option(customize_hostname_check, Value) when is_list(Value) ->
Value;
+validate_option(cb_info, {V1, V2, V3, V4}) when is_atom(V1),
+ is_atom(V2),
+ is_atom(V3),
+ is_atom(V4)
+ ->
+ true;
+validate_option(cb_info, {V1, V2, V3, V4, V5}) when is_atom(V1),
+ is_atom(V2),
+ is_atom(V3),
+ is_atom(V4),
+ is_atom(V5)
+ ->
+ true;
+validate_option(cb_info, _) ->
+ false;
validate_option(Opt, Value) ->
throw({error, {options, {Opt, Value}}}).
+handle_cb_info({V1, V2, V3, V4}, {_,_,_,_,_}) ->
+ {V1,V2,V3,V4, list_to_atom(atom_to_list(V2) ++ "passive")};
+handle_cb_info(CbInfo, _) ->
+ CbInfo.
+
handle_hashsigns_option(Value, Version) when is_list(Value)
andalso Version >= {3, 3} ->
case tls_v1:signature_algs(Version, Value) of
@@ -1964,7 +1993,7 @@ default_option_role(_,_,_) ->
undefined.
default_cb_info(tls) ->
- {gen_tcp, tcp, tcp_closed, tcp_error};
+ {gen_tcp, tcp, tcp_closed, tcp_error, tcp_passive};
default_cb_info(dtls) ->
{gen_udp, udp, udp_closed, udp_error}.
diff --git a/lib/ssl/src/ssl_connection.hrl b/lib/ssl/src/ssl_connection.hrl
index 9efd65b2d2..c90fe926b7 100644
--- a/lib/ssl/src/ssl_connection.hrl
+++ b/lib/ssl/src/ssl_connection.hrl
@@ -40,6 +40,7 @@
data_tag :: atom(), % ex tcp.
close_tag :: atom(), % ex tcp_closed
error_tag :: atom(), % ex tcp_error
+ passive_tag :: atom(), % ex tcp_passive
host :: string() | inet:ip_address(),
port :: integer(),
socket :: port() | tuple(), %% TODO: dtls socket
diff --git a/lib/ssl/src/tls_connection.erl b/lib/ssl/src/tls_connection.erl
index 3229004c9d..31173703d2 100644
--- a/lib/ssl/src/tls_connection.erl
+++ b/lib/ssl/src/tls_connection.erl
@@ -79,7 +79,7 @@
%% Setup
%%====================================================================
start_fsm(Role, Host, Port, Socket, {#ssl_options{erl_dist = false},_, Tracker} = Opts,
- User, {CbModule, _,_, _} = CbInfo,
+ User, {CbModule, _,_, _, _} = CbInfo,
Timeout) ->
try
{ok, Sender} = tls_sender:start(),
@@ -93,7 +93,7 @@ start_fsm(Role, Host, Port, Socket, {#ssl_options{erl_dist = false},_, Tracker}
end;
start_fsm(Role, Host, Port, Socket, {#ssl_options{erl_dist = true},_, Tracker} = Opts,
- User, {CbModule, _,_, _} = CbInfo,
+ User, {CbModule, _,_, _, _} = CbInfo,
Timeout) ->
try
{ok, Sender} = tls_sender:start([{spawn_opt, ?DIST_CNTRL_SPAWN_OPTS}]),
@@ -765,7 +765,7 @@ code_change(_OldVsn, StateName, State, _) ->
%%% Internal functions
%%--------------------------------------------------------------------
initial_state(Role, Sender, Host, Port, Socket, {SSLOptions, SocketOptions, Tracker}, User,
- {CbModule, DataTag, CloseTag, ErrorTag}) ->
+ {CbModule, DataTag, CloseTag, ErrorTag, PassiveTag}) ->
#ssl_options{beast_mitigation = BeastMitigation,
erl_dist = IsErlDist} = SSLOptions,
ConnectionStates = tls_record:init_connection_states(Role, BeastMitigation),
@@ -790,6 +790,7 @@ initial_state(Role, Sender, Host, Port, Socket, {SSLOptions, SocketOptions, Trac
data_tag = DataTag,
close_tag = CloseTag,
error_tag = ErrorTag,
+ passive_tag = PassiveTag,
host = Host,
port = Port,
socket = Socket,
@@ -879,8 +880,9 @@ handle_info({Protocol, _, Data}, StateName,
ssl_connection:handle_normal_shutdown(Alert, StateName, State0),
{stop, {shutdown, own_alert}, State0}
end;
-handle_info({tcp_passive, Socket}, StateName,
- #state{static_env = #static_env{socket = Socket},
+handle_info({PassiveTag, Socket}, StateName,
+ #state{static_env = #static_env{socket = Socket,
+ passive_tag = PassiveTag},
protocol_specific = PS
} = State) ->
next_event(StateName, no_record,
diff --git a/lib/ssl/src/tls_socket.erl b/lib/ssl/src/tls_socket.erl
index c3c41d3e12..6c32e6fa04 100644
--- a/lib/ssl/src/tls_socket.erl
+++ b/lib/ssl/src/tls_socket.erl
@@ -46,7 +46,7 @@
send(Transport, Socket, Data) ->
Transport:send(Socket, Data).
-listen(Transport, Port, #config{transport_info = {Transport, _, _, _},
+listen(Transport, Port, #config{transport_info = {Transport, _, _, _, _},
inet_user = Options,
ssl = SslOpts, emulated = EmOpts} = Config) ->
case Transport:listen(Port, Options ++ internal_inet_values()) of
@@ -59,7 +59,7 @@ listen(Transport, Port, #config{transport_info = {Transport, _, _, _},
Err
end.
-accept(ListenSocket, #config{transport_info = {Transport,_,_,_} = CbInfo,
+accept(ListenSocket, #config{transport_info = {Transport,_,_,_,_} = CbInfo,
connection_cb = ConnectionCb,
ssl = SslOpts,
emulated = Tracker}, Timeout) ->
@@ -80,7 +80,7 @@ accept(ListenSocket, #config{transport_info = {Transport,_,_,_} = CbInfo,
{error, Reason}
end.
-upgrade(Socket, #config{transport_info = {Transport,_,_,_}= CbInfo,
+upgrade(Socket, #config{transport_info = {Transport,_,_,_,_}= CbInfo,
ssl = SslOptions,
emulated = EmOpts, connection_cb = ConnectionCb}, Timeout) ->
ok = setopts(Transport, Socket, tls_socket:internal_inet_values()),
@@ -98,7 +98,7 @@ connect(Address, Port,
#config{transport_info = CbInfo, inet_user = UserOpts, ssl = SslOpts,
emulated = EmOpts, inet_ssl = SocketOpts, connection_cb = ConnetionCb},
Timeout) ->
- {Transport, _, _, _} = CbInfo,
+ {Transport, _, _, _, _} = CbInfo,
try Transport:connect(Address, Port, SocketOpts, Timeout) of
{ok, Socket} ->
ssl_connection:connect(ConnetionCb, Address, Port, Socket,
@@ -125,7 +125,7 @@ setopts(gen_tcp, Socket = #sslsocket{pid = {ListenSocket, #config{emulated = Tra
ok = set_emulated_opts(Tracker, EmulatedOpts),
check_active_n(EmulatedOpts, Socket),
inet:setopts(ListenSocket, SockOpts);
-setopts(_, Socket = #sslsocket{pid = {ListenSocket, #config{transport_info = {Transport,_,_,_},
+setopts(_, Socket = #sslsocket{pid = {ListenSocket, #config{transport_info = {Transport,_,_,_,_},
emulated = Tracker}}}, Options) ->
{SockOpts, EmulatedOpts} = split_options(Options),
ok = set_emulated_opts(Tracker, EmulatedOpts),
diff --git a/lib/ssl/test/ssl_basic_SUITE.erl b/lib/ssl/test/ssl_basic_SUITE.erl
index e86d2eaf9e..f55d1c8ea7 100644
--- a/lib/ssl/test/ssl_basic_SUITE.erl
+++ b/lib/ssl/test/ssl_basic_SUITE.erl
@@ -4063,7 +4063,7 @@ tls_tcp_error_propagation_in_active_mode(Config) when is_list(Config) ->
[_, _,_, _, Prop] = StatusInfo,
State = ssl_test_lib:state(Prop),
StaticEnv = element(2, State),
- Socket = element(10, StaticEnv),
+ Socket = element(11, StaticEnv),
%% Fake tcp error
Pid ! {tcp_error, Socket, etimedout},