Re: SE-PostgreSQL/Lite Review

Joshua Brindle <method@manicmethod.com>

From: Joshua Brindle <method@manicmethod.com>
To: Stephen Frost <sfrost@snowman.net>
Cc: KaiGai Kohei <kaigai@kaigai.gr.jp>, KaiGai Kohei <kaigai@ak.jp.nec.com>, Greg Smith <greg@2ndquadrant.com>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2009-12-11T18:28:17Z
Lists: pgsql-hackers
Stephen Frost wrote:
> KaiGai,
>
<snip>
> I do think that, technically, there's no reason we couldn't allow for
> multiple "only-more-restrictive" models to be enabled and built in a
> single binary for systems which support it.  As such, I would make those
> just "#if defined()" rather than "#elif".  Let it be decided at runtime
> which are actually used, otherwise it becomes a much bigger problem for
> packagers too.
>

It isn't just a case of using #if and it magically working. You'd need a 
system to manage multiple labels on each object that can be addressed by 
different systems. So instead of having an object mapped only to 
"system_u:object_r:mydb_t:s15" you'd also have to have it mapped to, 
eg., "^" for Smack.