Re: 8.4 release planning

From: Joshua Brindle <method(at)manicmethod(dot)com>
To: Stephen Frost <sfrost(at)snowman(dot)net>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Josh Berkus <josh(at)agliodbs(dot)com>, Gregory Stark <stark(at)enterprisedb(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Simon Riggs <simon(at)2ndQuadrant(dot)com>, Ron Mayer <rm_pg(at)cheapcomplexdevices(dot)com>, "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>, Merlin Moncure <mmoncure(at)gmail(dot)com>, "Jonah H(dot) Harris" <jonah(dot)harris(at)gmail(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, Bernd Helmle <mailings(at)oopsware(dot)de>, Peter Eisentraut <peter_e(at)gmx(dot)net>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: 8.4 release planning
Date: 2009-01-27 20:00:39
Message-ID: 497F67E7.908@manicmethod.com
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Stephen Frost wrote:
> * Joshua Brindle (method(at)manicmethod(dot)com) wrote:
>> They are separate. If you look at the patches you'll see a pgace part,
>> this is where the core interfaces to the security backends, and you'll
>> see a rowacl backend and an sepgsql backend.
>
> Right, guess it wasn't clear to me that the PGACE bits for row-level
> access control could be used independently of SELinux (and maybe even on
> systems that don't have SELinux..?).
>

Sure, if you look at pgaceHooks.c you'll see:

bool
pgaceExecScan(Scan *scan, Relation rel, TupleTableSlot *slot)
{
/* Hardwired DAC checks */
if (!rowaclExecScan(scan, rel, slot))
return false;

switch (pgace_feature)
{
#ifdef HAVE_SELINUX
case PGACE_FEATURE_SELINUX:
if (sepgsqlIsEnabled())
return sepgsqlExecScan(scan, rel, slot);
break;
#endif
default:
break;
}
return true;
}

Notice the rowacl call outside of the HAVE_SELINUX ifdefs

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