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SubjectRe: [PATCH 08/28] SECURITY: Allow kernel services to override LSM settings for task actions [try #2]
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On Mon, 2008-01-14 at 14:06 +0000, David Howells wrote:
> David Howells <dhowells@redhat.com> wrote:
> > Okay... It looks like I want four security operations/hooks for cachefiles:
>
> FYI, I added the following vectors:
>
> # kernel services that need to override task security
> class kernel_service
> {
> use_as_override
> create_files_as
> }
>
> The first allows:
>
> avc_has_perm(daemon_tsec->sid, nominated_sid,
> SECCLASS_KERNEL_SERVICE,
> KERNEL_SERVICE__USE_AS_OVERRIDE,
> NULL);
>
> And the second something like:
>
> avc_has_perm(tsec->sid, inode->sid,
> SECCLASS_KERNEL_SERVICE,
> KERNEL_SERVICE__CREATE_FILES_AS,
> NULL);
>
> Rather than specifically dedicating them to the cache, I made them general.

Make sure that you or Dan submits a policy patch to register these
classes and permissions in the policy when the kernel patch is queued
for merge.

--
Stephen Smalley
National Security Agency



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