Re: [v9.2] Fix Leaky View Problem

From: Thom Brown <thom(at)linux(dot)com>
To: Kohei KaiGai <kaigai(at)kaigai(dot)gr(dot)jp>
Cc: Kohei Kaigai <Kohei(dot)Kaigai(at)emea(dot)nec(dot)com>, Noah Misch <noah(at)2ndquadrant(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [v9.2] Fix Leaky View Problem
Date: 2011-09-07 13:39:11
Message-ID: CAA-aLv7+-VoZCDMSsRgwCw5hEHT4ekcL=zokJQ_C7pEjYd9+aQ@mail.gmail.com
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On 7 September 2011 14:34, Kohei KaiGai <kaigai(at)kaigai(dot)gr(dot)jp> wrote:

> 2011/9/7 Thom Brown <thom(at)linux(dot)com>:
> > On 24 August 2011 13:38, Kohei Kaigai <Kohei(dot)Kaigai(at)emea(dot)nec(dot)com> wrote:
> >>
> >> The (2) is new stuff from the revision in commit-fest 1st. It enables to
> >> supply "NOLEAKY" option on CREATE FUNCTION statement, then the function
> is
> >> allowed to distribute across security barrier. Only superuser can set
> this
> >> option.
> >
> > "NOLEAKY" doesn't really sound appropriate as it sounds like pidgin
> English.
> > Also, it could be read as "Don't allow leaks in this function". Could
> we
> > instead use something like TRUSTED or something akin to it being allowed
> to
> > do more than safer functions? It then describes its level of behaviour
> > rather than what it promises not to do.
> >
> Thanks for your comment. I'm not a native English specker, so it is
> helpful.
>
> "TRUSTED" sounds meaningful for me, however, it is confusable with a
> concept
> of "trusted procedure" in label-based MAC. It is not only SELinux,
> Oracle's label
> based security also uses this term to mean a procedure that switches user's
> credential during its execution.
>
> http://download.oracle.com/docs/cd/B28359_01/network.111/b28529/storproc.htm
>
> So, how about "CREDIBLE", instead of "TRUSTED"?
>

I can't say I'm keen on that alternative, but I'm probably not the one to
participate in bike-shedding here, so I'll leave comment to you hackers. :)

--
Thom Brown
Twitter: @darkixion
IRC (freenode): dark_ixion
Registered Linux user: #516935

EnterpriseDB UK: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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