Re: [PATCH 1/1] Add CONFIG_SECURITY_SELINUX_PERMISSIVE_DONTAUDIT

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On Wed, Sep 21, 2022 at 12:11 PM Paul Moore <paul@xxxxxxxxxxxxxx> wrote:
>
> On Wed, Sep 21, 2022 at 2:54 PM <jeffxu@xxxxxxxxxxxx> wrote:
> >
> > From: Jeff Xu <jeffxu@xxxxxxxxxxxx>
> >
> > When SECURITY_SELINUX_DEVELOP=y and the system is running in permissive
> > mode, it is useful to disable logging from permissive domain, so audit
> > log does not get spamed.
> >
> > Signed-off-by: Jeff Xu <jeffxu@xxxxxxxxxxxx>
> > Signed-off-by: Luis Hector Chavez <lhchavez@xxxxxxxxxx>
> > Tested-by: Luis Hector Chavez <lhchavez@xxxxxxxxxxxx>
> > Tested-by: Jeff Xu<jeffxu@xxxxxxxxxxxx>
> > ---
> >  security/selinux/Kconfig | 10 ++++++++++
> >  security/selinux/avc.c   |  9 +++++++++
> >  2 files changed, 19 insertions(+)
>
> I'm sorry, but I can't accept this into the upstream kernel.
> Permissive mode, both per-domain and system-wide, is not intended to
> be a long term solution.  Permissive mode should really only be used
> as a development tool or emergency "hotfix" with the proper solution
> being either an adjustment of the existing policy (SELinux policy
> booleans, labeling changes, etc.) or the development of a new policy
> module which better fits your use case.
>

Thanks for the response.
For a system that wants to control a few daemons, is there a
recommended pattern from selinux ?
I read this blog about unconfined domain (unconfined_t), maybe this is one way ?
https://wiki.gentoo.org/wiki/SELinux/Tutorials/What_is_this_unconfined_thingie_and_tell_me_about_attributes

I have two questions on unconfined domain:
1> Is unconfined_t domain supported in SECURITY_SELINUX_DEVELOP=n mode ?
2> will unconfined_t domain log also as permissive domain ?

Thanks
Jeff

> --
> paul-moore.com



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