If all versions of a proto are disabled, disabled the proto as well
For example, 'no-dtls1 no-dtls1_2' will imply 'no-dtls'
@@ -472,6 +472,8 @@ my @disable_cascades = (
"dgram" => [ "dtls", "sctp" ],
"sock" => [ "dgram" ],
"dtls" => [ @dtls ],
+ sub { 0 == scalar grep { !$disabled{$_} } @dtls }
+ => [ "dtls" ],
# SSL 3.0, (D)TLS 1.0 and TLS 1.1 require MD5 and SHA
"md5" => [ "ssl", "tls1", "tls1_1", "dtls1" ],
@@ -492,6 +494,8 @@ my @disable_cascades = (
"dtls1", "dtls1_2" ],
"tls" => [ @tls ],
+ sub { 0 == scalar grep { !$disabled{$_} } @tls }
+ => [ "tls" ],
# SRP and HEARTBEATS require TLSEXT
"tlsext" => [ "srp", "heartbeats" ],
