Re: Question about security system call in LSM ?

From: Casey Schaufler (casey@schaufler-ca.com)
Date: Mon Apr 18 2005 - 08:15:30 PDT


--- Stephen Smalley <sds@private> wrote:


> IMHO, the more important reason was that it opened
> up a gateway for
> arbitrary interfaces into the kernel without peer
> review, much like
> ioctl.

I believe that Stephen has the nut of it.
The goal of LSM is a framework for the
addition of supplemental policy enforcement
mechanisms, and there's at least one school
that holds the opinion that those mechanisms
shouldn't require additional system calls.

It has also been pointed out that there are
already enough mechanisms available for
the kinds of things syscalls do that no one
really needs a new syscall these days.


Casey Schaufler
casey@schaufler-ca.com

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