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Date: Tue, 4 Jun 2002 23:05:50 +0200 (CEST)
From: =?ISO-8859-2?Q?Tomasz_K=B3oczko?= <kloczek@rudy.mif.pg.gda.pl>
To: Jeff Garzik <jgarzik@mandrakesoft.com>
cc: Austin Gonyou <austin@coremetrics.com>,
        Linux Kernel List <linux-kernel@vger.kernel.org>
Subject: Re: Max groups at 32?
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Message-ID: <Pine.LNX.4.44L.0206042251240.14400-100000@rudy.mif.pg.gda.pl>
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On Mon, 3 Jun 2002, Jeff Garzik wrote:

> Austin Gonyou wrote:
> 
> >I'm not sure if this is a Linux capabilities problem, a PAM problem, or
> >what, but I've noticed that If I add a user to > 32 groups...that user
> >cannot access anything in a directory owned by a group > the 32nd group.
> >  
> >
> 
> 
> Yes.  It's a hardcoded limit that requires a recompile of both the 
> kernel and glibc to change.

Few months ago was release by me shadow package with some neccessary
for this changes. From http://shadow.pld.org.pl/ChangeLog:

2001-09-01  Tomasz K?oczko  <kloczek@pld.org.pl>

        * src/groups.c, src/id.c, src/newgrp.c, src/useradd.c, src/usermod.c, libmisc/addgrps.c, NEWS:
        remove limit 32 to groups per user (the same user can belong to
        more than 32 groups) by use sysconf(_SC_NGROUPS_MAX) instead constant
        NGROUPS_MAX (patch by Radu Constantin Rendec <radu.rendec@ines.ro>)
        NOTE: it probably need testing on other system for add some conditionals
        for using sysconf(_SC_NGROUPS_MAX) or NGROUPS_MAX constant.

Some other fixes for correct displaing/handling 32bit uid/gid was after
above prepared by Thorsten Kukuk <kukuk@suse.de> and me and all was
integrated in shadow source tree. All is avalable in latest shadow 4.0.3.

kloczek
-- 
-----------------------------------------------------------
*Ludzie nie maj? problem?w, tylko sobie sami je stwarzaj?*
-----------------------------------------------------------
Tomasz K?oczko, sys adm @zie.pg.gda.pl|*e-mail: kloczek@rudy.mif.pg.gda.pl*

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