Re: Removing EXPORT_SYMBOL(security_ops) (was Re: Time to remove LSM)

Stephen Smalley
2006-04-20T15:15:49Z

On Thu, 2006-04-20 at 08:00 -0700, Greg KH wrote:
> I agree. In looking over the code some more, I'm trying to figure out
> why we are exporting that variable at all. Is it because of people
> wanting to stack security modules?
>
> I see selinux code using it, but you are always built into the kernel,
> right? So unexporting it would not be an issue to you.

Various in-tree modules (e.g. ext3) call security hooks via the static
inlines and end up referencing security_ops directly. We'd have to wrap
all such hooks in the same manner as capable and permission.

Although I was actually talking about eliminating security_ops, not just
un-exporting it ;)

> Tony, would AppArmor have problems if we don't export that variable
> anymore?

--
Stephen Smalley
National Security Agency