From: Tom Lane <tgl@sss.pgh.pa.us>
To: Robbie Harwood <rharwood@redhat.com>
cc: Michael Paquier <michael.paquier@gmail.com>,
        PostgreSQL mailing lists <pgsql-hackers@postgresql.org>,
        Stephen Frost <sfrost@snowman.net>
Subject: Re: [PATCH v12] GSSAPI encryption support
In-reply-to: <jlg7fc8fmq7.fsf@thriss.redhat.com>
References: <jlg1tgq1ktm.fsf@thriss.redhat.com>
 <jlgy48ssyvl.fsf@thriss.redhat.com>
 <20160406112105.GG10850@tamriel.snowman.net>
 <jlg1t6isftk.fsf@thriss.redhat.com> <1530.1459977031@sss.pgh.pa.us>
 <jlgy48qqt86.fsf@thriss.redhat.com> <5486.1459984857@sss.pgh.pa.us>
 <CAB7nPqRPK1f4oAStwsy_Ty_Cjjo8U50HF0bRZi86my7va4nVdg@mail.gmail.com>
 <jlgk2hq3uvr.fsf@thriss.redhat.com> <jlg7fc91lko.fsf@thriss.redhat.com>
 <CAB7nPqSmq1tuVGoVQXVb86y9SoaM-wcMDxHD1of9dGc54QYNSQ@mail.gmail.com>
 <jlg7fc8fmq7.fsf@thriss.redhat.com>
Comments: In-reply-to Robbie Harwood <rharwood@redhat.com>
	message dated "Tue, 26 Jul 2016 11:22:24 -0400"
Date: Tue, 26 Jul 2016 11:29:08 -0400
Message-ID: <18337.1469546948@sss.pgh.pa.us>
Precedence: bulk
Sender: pgsql-hackers-owner@postgresql.org

Robbie Harwood <rharwood@redhat.com> writes:
> So there's a connection setting `sslmode` that we'll want something
> similar to here (`gssapimode` or so).  `sslmode` has six settings, but I
> think we only need three for GSSAPI: "disable", "allow", and "prefer"
> (which presumably would be the default).

FWIW, there is quite a bit of unhappiness around sslmode=prefer, see
for example this thread:
https://www.postgresql.org/message-id/flat/2A5EFBDC-41C6-42A8-8B6D-E69DA60E9962%40eggerapps.at

I do not know if we can come up with a better answer, but I'd caution
you against thinking that that's a problem-free model to emulate.

			regards, tom lane


-- 
Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-hackers