Re: Sybase Connection - trouble without protocol fallback

2017-07-04 16:28 GMT+01:00 Fredy Paquet <[email protected]>:
> Hello Igor
>
> The FreeTDS user guide defines default encryption level is OFF:
> (see http://www.freetds.org/userguide/freetdsconf.htm)
>
> The config file parser initializes encryption_level to
> TDS_ENCRYPTION_DEFAULT. If you do not set encryption in any section of
> your freetds.conf, the encryption_level in the login struct remains at
> TDS_ENCRYPTION_DEFAULT.
>
> Today, the TDS 7.1 driver changes this value to TDS_ENCRYPTION_REQUEST,
> which doesn't implement the documented behaviour.
>

The website documentation reflect the last stable release where the
default was OFF.

> I do not know wether MSSQL can accept unencrypted requests (no test
> system available).
>

Recent ones do not allow unencrypted logins.

> If MSSQL cannot accept unencrypted connections, it may be ok to fallback
> to TDS_ENCRYPTION_REQUEST for TDS 7.1. But this clearly must not affect
> further trials on the lower protocol levels.
>
> Agree, it would be good programming practise to introduce a #define for
> the default encryption level.
>

What do you mean? Is an enum not enough?

> fp
>

Frediano