From: "Serge E. Hallyn" <serge@hallyn.com>
To: Casey Schaufler <casey@schaufler-ca.com>
Cc: "Serge E. Hallyn" <serge@hallyn.com>,
James Morris <jmorris@namei.org>,
linux-security-module@vger.kernel.org,
Chris Wright <chrisw@sous-sol.org>,
Andrew Morgan <agm@google.com>, Andrew Morton <akpm@google.com>,
Stephen Smalley <sds@tycho.nsa.gov>,
lkml <linux-kernel@vger.kernel.org>,
Arjan van de Ven <arjan@infradead.org>, Greg KH <greg@kroah.com>,
Eric Paris <eparis@redhat.com>
Subject: Re: [PATCH][RFC] security: Convert LSM into a static interface
Date: Mon, 25 Jun 2007 09:32:22 -0500 [thread overview]
Message-ID: <20070625143222.GA11997@vino.hallyn.com> (raw)
In-Reply-To: <350610.33706.qm@web36610.mail.mud.yahoo.com>
Quoting Casey Schaufler (casey@schaufler-ca.com):
>
> --- "Serge E. Hallyn" <serge@hallyn.com> wrote:
>
> > Quoting James Morris (jmorris@namei.org):
> > > Convert LSM into a static interface, as the ability to unload a security
> > > module is not required by in-tree users and potentially complicates the
> > > overall security architecture.
> > >
> > > Needlessly exported LSM symbols have been unexported, to help reduce API
> > > abuse.
> > >
> > > Module parameters for the capability and root_plug modules have been
> > > converted to kernel parameters.
> > >
> > > The SECURITY_FRAMEWORK_VERSION macro has also been removed.
> >
> > Sigh, as much as I would *like* to stay out of this (I don't
> > use modules at all on any system where I can avoid it), won't
> > it make development - and especially testing - of new lsms
> > much more painful and therefore less likely?
>
> While there's lots of pain involved in developing an LSM
> modern development environments (e.g. virtual machines)
> have reduced the value of loadable modules for debug purposes.
>
> > I realize there has been a dearth of new LSMs to date,
>
> but so much excitment over those proposed!
>
> > but if
> > for instance a new solaris 10 based capability module were written,
> > well, people would want to be able to
> >
> > rmmod capability
> > modprobe cap_prm
>
> I think the value is overrated. You would never want to do that
> in a production environment, and in a debug environment you could
> just as easily reboot and get some start-up testing out of the way.
And in a development environment you can just as easily select
CONFIG_XYZ=y, no?
So we have two options, one which provides greater choice and
flexibility.
-serge
next prev parent reply other threads:[~2007-06-25 14:32 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20070611123714.GA2063@sergelap.austin.ibm.com>
[not found] ` <878322.98602.qm@web36606.mail.mud.yahoo.com>
[not found] ` <afff21250706110926l244ddc28i44289cb08a6721e2@mail.gmail.com>
[not found] ` <20070617135239.GA17689@sergelap>
[not found] ` <4676007F.7060503@kernel.org>
[not found] ` <20070618044017.GW3723@sequoia.sous-sol.org>
[not found] ` <20070620171037.GA28670@sergelap.ibm.com>
[not found] ` <20070620174613.GF3723@sequoia.sous-sol.org>
2007-06-21 16:00 ` implement-file-posix-capabilities.patch Serge E. Hallyn
2007-06-23 8:13 ` implement-file-posix-capabilities.patch Andrew Morgan
2007-06-24 15:51 ` implement-file-posix-capabilities.patch Serge E. Hallyn
2007-06-24 16:18 ` implement-file-posix-capabilities.patch James Morris
2007-06-24 20:58 ` [PATCH][RFC] security: Convert LSM into a static interface James Morris
2007-06-24 22:09 ` Chris Wright
2007-06-24 22:37 ` James Morris
2007-06-25 1:38 ` Chris Wright
2007-06-24 23:40 ` Casey Schaufler
2007-06-25 1:39 ` Chris Wright
2007-06-25 3:37 ` Casey Schaufler
2007-06-25 3:57 ` Chris Wright
2007-06-25 13:02 ` Casey Schaufler
2007-06-25 14:24 ` Roberto De Ioris
2007-06-25 4:33 ` [PATCH try #2] " James Morris
2007-06-25 4:48 ` Petr Vandrovec
2007-06-25 4:58 ` James Morris
2007-06-25 16:59 ` Stephen Smalley
2007-06-25 23:56 ` [PATCH try #3] " James Morris
2007-06-25 20:37 ` [PATCH try #2] " Andreas Gruenbacher
2007-06-25 21:14 ` James Morris
2007-06-26 3:57 ` Serge E. Hallyn
2007-06-26 13:15 ` Adrian Bunk
2007-06-26 14:06 ` Serge E. Hallyn
2007-06-26 14:59 ` Adrian Bunk
2007-06-26 15:53 ` Serge E. Hallyn
2007-06-26 18:52 ` Adrian Bunk
2007-06-26 18:18 ` Greg KH
2007-06-26 18:40 ` Serge E. Hallyn
2007-06-26 4:09 ` Kyle Moffett
2007-06-26 4:25 ` Kyle Moffett
2007-06-26 13:47 ` Serge E. Hallyn
2007-06-27 0:07 ` Kyle Moffett
2007-06-27 0:57 ` Crispin Cowan
2007-06-27 1:22 ` Kyle Moffett
2007-06-27 4:24 ` Chris Wright
2007-06-27 13:41 ` Serge E. Hallyn
2007-06-27 14:36 ` James Morris
2007-06-27 17:21 ` Serge E. Hallyn
2007-06-27 18:51 ` Serge E. Hallyn
2007-06-27 19:28 ` James Morris
2007-06-28 2:48 ` Serge E. Hallyn
2007-06-25 3:57 ` [PATCH][RFC] " Serge E. Hallyn
2007-06-25 4:10 ` Chris Wright
2007-06-25 4:54 ` Serge E. Hallyn
2007-06-25 13:50 ` Casey Schaufler
2007-06-25 13:54 ` James Morris
2007-06-25 14:32 ` Serge E. Hallyn [this message]
2007-06-25 15:08 ` Casey Schaufler
2007-06-27 5:00 ` implement-file-posix-capabilities.patch Andrew Morgan
2007-06-27 13:16 ` implement-file-posix-capabilities.patch Serge E. Hallyn
2007-06-28 6:19 ` implement-file-posix-capabilities.patch Andrew Morgan
2007-06-28 13:36 ` implement-file-posix-capabilities.patch Serge E. Hallyn
2007-06-28 15:14 ` implement-file-posix-capabilities.patch Casey Schaufler
2007-06-28 15:38 ` implement-file-posix-capabilities.patch Serge E. Hallyn
2007-06-28 15:56 ` implement-file-posix-capabilities.patch Casey Schaufler
2007-06-29 5:30 ` implement-file-posix-capabilities.patch Andrew Morgan
2007-06-29 13:24 ` implement-file-posix-capabilities.patch Serge E. Hallyn
2007-06-29 14:46 ` implement-file-posix-capabilities.patch Casey Schaufler
2007-06-28 15:50 ` implement-file-posix-capabilities.patch Andrew Morgan
2007-07-02 14:38 ` implement-file-posix-capabilities.patch Serge E. Hallyn
2007-07-04 21:29 ` implement-file-posix-capabilities.patch Andrew Morgan
2007-07-04 23:00 ` implement-file-posix-capabilities.patch Casey Schaufler
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