Ensure single 'raw' option is handled correctly

Add a test to ensure that a single 'raw' option can be passed to
ssl:listen correctly.

Note: multiple raw options are (incorrectly) handled by
inet:listen_options. See
http://erlang.org/pipermail/erlang-questions/2014-March/078371.html

1 files changed, 26 insertions, 0 deletions

diff --git a/lib/ssl/test/ssl_basic_SUITE.erl b/lib/ssl/test/ssl_basic_SUITE.erl
index ecedb89c23..0712764274 100644
--- a/lib/ssl/test/ssl_basic_SUITE.erl
+++ b/lib/ssl/test/ssl_basic_SUITE.erl
@@ -96,6 +96,7 @@ options_tests() ->
     [der_input,
      misc_ssl_options,
      ssl_options_not_proplist,
+     raw_ssl_option,
      socket_options,
      invalid_inet_get_option,
      invalid_inet_get_option_not_list,
@@ -311,6 +312,14 @@ init_per_testcase(clear_pem_cache, Config) ->
     ct:log("TLS/SSL version ~p~n ", [tls_record:supported_protocol_versions()]),
     ct:timetrap({seconds, 20}),
     Config;
+init_per_testcase(raw_ssl_option, Config) ->
+    ct:timetrap({seconds, 5}),
+    case os:type() of
+        {unix,linux} ->
+            Config;
+        _ ->
+            {skip, "Raw options are platform-specific"}
+    end;
 
 init_per_testcase(_TestCase, Config) ->
     ct:log("TLS/SSL version ~p~n ", [tls_record:supported_protocol_versions()]),
@@ -1136,6 +1145,23 @@ ssl_options_not_proplist(Config) when is_list(Config) ->
 					 BadOption]).
 
 %%--------------------------------------------------------------------
+raw_ssl_option() ->
+    [{doc,"Ensure that a single 'raw' option is passed to ssl:listen correctly."}].
+
+raw_ssl_option(Config) when is_list(Config) ->
+    % 'raw' option values are platform-specific; these are the Linux values:
+    IpProtoTcp = 6,
+    % Use TCP_KEEPIDLE, because (e.g.) TCP_MAXSEG can't be read back reliably.
+    TcpKeepIdle = 4,
+    KeepAliveTimeSecs = 55,
+    LOptions = [{raw, IpProtoTcp, TcpKeepIdle, <<KeepAliveTimeSecs:32/native>>}],
+    {ok, LSocket} = ssl:listen(0, LOptions),
+    % Per http://www.erlang.org/doc/man/inet.html#getopts-2, we have to specify
+    % exactly which raw option we want, and the size of the buffer.
+    {ok, [{raw, IpProtoTcp, TcpKeepIdle, <<KeepAliveTimeSecs:32/native>>}]} = ssl:getopts(LSocket, [{raw, IpProtoTcp, TcpKeepIdle, 4}]).
+
+
+%%--------------------------------------------------------------------
 versions() ->
     [{doc,"Test API function versions/0"}].