MDEV-14101 Provide an option to select TLS protocol version

Server and command line tools now support option --tls_version to specify the
TLS version between client and server. Valid values are TLSv1.0, TLSv1.1, TLSv1.2, TLSv1.3
or a combination of them. E.g.

--tls_version=TLSv1.3
--tls_version=TLSv1.2,TLSv1.3

In case there is a gap between versions, the lowest version will be used:
--tls_version=TLSv1.1,TLSv1.3 -> Only TLSv1.1 will be available.

If the used TLS library doesn't support the specified TLS version, it will use
the default configuration.

Limitations:

SSLv3 is not supported. The default configuration doesn't support TLSv1.0 anymore.
TLSv1.3 protocol currently is only supported by OpenSSL 1.1.0 (client and server) and
GnuTLS 3.6.5 (client only).

Overview of TLS implementations and protocols

Server:

+-----------+-----------------------------------------+
| Library   | Supported TLS versions                  |
+-----------+-----------------------------------------+
| WolfSSL   | TLSv1.1, TLSv1,2                        |
+-----------+-----------------------------------------+
| OpenSSL   | (TLSv1.0), TLSv1.1, TLSv1,2, TLSv1.3    |
+-----------+-----------------------------------------+
| LibreSSL  | (TLSv1.0), TLSv1.1, TLSv1,2, TLSv1.3    |
+-----------+-----------------------------------------+

Client (MariaDB Connector/C)
+-----------+-----------------------------------------+
| Library   | Supported TLS versions                  |
+-----------+-----------------------------------------+
| GnuTLS    | (TLSv1.0), TLSv1.1, TLSv1.2, TLSv1.3    |
+-----------+-----------------------------------------+
| Schannel  | (TLSv1.0), TLSv1.1, TLSv1.2             |
+-----------+-----------------------------------------+
| OpenSSL   | (TLSv1.0), TLSv1.1, TLSv1,2, TLSv1.3    |
+-----------+-----------------------------------------+
| LibreSSL  | (TLSv1.0), TLSv1.1, TLSv1,2, TLSv1.3    |
+-----------+-----------------------------------------+

1 files changed, 12 insertions, 12 deletions

diff --git a/mysql-test/main/openssl_6975.test b/mysql-test/main/openssl_6975.test
index 6a82d013fb6..bfcb0d56681 100644
--- a/mysql-test/main/openssl_6975.test
+++ b/mysql-test/main/openssl_6975.test
@@ -18,25 +18,25 @@ let $mysql=$MYSQL --ssl-key=$MYSQL_TEST_DIR/std_data/client-key.pem --ssl-cert=$
 
 disable_abort_on_error;
 echo TLS1.2 ciphers: user is ok with any cipher;
-exec $mysql                  --ssl-cipher=AES128-SHA256;
+exec $mysql --tls-version=TLSv1.2 --ssl-cipher=AES128-SHA256;
 --replace_result DHE-RSA-CHACHA20-POLY1305 DHE-RSA-AES256-GCM-SHA384 ECDHE-RSA-AES256-GCM-SHA384 DHE-RSA-AES256-GCM-SHA384
-exec $mysql                  --ssl-cipher=TLSv1.2;
+exec $mysql --tls-version=TLSv1.2 --ssl-cipher=TLSv1.2;
 echo TLS1.2 ciphers: user requires SSLv3 cipher AES128-SHA;
-exec $mysql --user ssl_sslv3 --ssl-cipher=AES128-SHA256;
-exec $mysql --user ssl_sslv3 --ssl-cipher=TLSv1.2;
+exec $mysql --user ssl_sslv3 --tls-version=TLSv1.2 --ssl-cipher=AES128-SHA256;
+exec $mysql --user ssl_sslv3 --tls-version=TLSv1.2 --ssl-cipher=TLSv1.2;
 echo TLS1.2 ciphers: user requires TLSv1.2 cipher AES128-SHA256;
-exec $mysql --user ssl_tls12 --ssl-cipher=AES128-SHA256;
-exec $mysql --user ssl_tls12 --ssl-cipher=TLSv1.2;
+exec $mysql --user ssl_tls12 --tls-version=TLSv1.2 --ssl-cipher=AES128-SHA256;
+exec $mysql --user ssl_tls12 --tls-version=TLSv1.2 --ssl-cipher=TLSv1.2;
 
 echo SSLv3 ciphers: user is ok with any cipher;
-exec $mysql                  --ssl-cipher=AES256-SHA;
-exec $mysql                  --ssl-cipher=SSLv3;
+exec $mysql --tls-version=TLSv1.0,TLSv1.1,TLSv1.2 --ssl-cipher=AES256-SHA;
+exec $mysql --tls-version=TLSv1.0,TLSv1.1,TLSv1.2 --ssl-cipher=SSLv3;
 echo SSLv3 ciphers: user requires SSLv3 cipher AES128-SHA;
-exec $mysql --user ssl_sslv3 --ssl-cipher=AES128-SHA;
-exec $mysql --user ssl_sslv3 --ssl-cipher=SSLv3;
+exec $mysql --user ssl_sslv3 --tls-version=TLSv1.0,TLSv1.1,TLSv1.2 --ssl-cipher=AES128-SHA;
+exec $mysql --user ssl_sslv3 --tls-version=TLSv1.0,TLSv1.1,TLSv1.2 --ssl-cipher=SSLv3;
 echo SSLv3 ciphers: user requires TLSv1.2 cipher AES128-SHA256;
-exec $mysql --user ssl_tls12 --ssl-cipher=AES128-SHA;
-exec $mysql --user ssl_tls12 --ssl-cipher=SSLv3;
+exec $mysql --user ssl_tls12 --tls-version=TLSv1.0,TLSv1.1,TLSv1.2 --ssl-cipher=AES128-SHA;
+exec $mysql --user ssl_tls12 --tls-version=TLSv1.0,TLSv1.1,TLSv1.2 --ssl-cipher=SSLv3;
 
 drop user ssl_sslv3@localhost;
 drop user ssl_tls12@localhost;