linux-kernel - Re: [PATCH] vfs: new FROM

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1253640526.2747.7.camel@dhcp231-106.rdu.redhat.com>
Date:	Tue, 22 Sep 2009 13:28:46 -0400
From:	Eric Paris <eparis@...hat.com>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	viro@...iv.linux.org.uk
Subject: Re: [PATCH] vfs: new FROM_ACCESS flag

On Tue, 2009-09-22 at 09:56 -0400, Christoph Hellwig wrote:
> On Sun, Sep 20, 2009 at 09:30:48PM -0400, Eric Paris wrote:
> > This new acc_mode flag is just to tell the security system this inode
> > permission check is from the access system call.  The security system can
> > use this information as it finds appropriete.  In particular SELinux plans to
> > use this flag to alter what we choose to audit and what we do not choose to
> > audit.
> 
> I think you're better off splitting the existing MAY_ACCESS flag and
> only using MAY_ACCESS for calles from access() insteaf of introducing
> a FROM_ACCESS flag and causing lots of naming confusion.

What would you think of a new, MUST_REVALIDATE_PERMS which will do what
MAY_ACCESS does today.  MAY_ACCESS would be just for access(2) and would
be the flag that I use for SELinux?

-Eric

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/