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SubjectRe: [PATCH 1/6] SELinux: change Kconfig to use select instead of depends
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On Tue, 2007-10-09 at 16:28 -0700, Randy Dunlap wrote:
> On Wed, 10 Oct 2007 09:19:55 +1000 (EST) James Morris wrote:
>
> > From: Eric Paris <eparis@redhat.com>
> >
> > Changes the security/selinux/Kconfig to use select instead of depends
> > for most of the SELinux requirements. This allows the SELinux option to
> > show up when people do a make config without already knowing they had to
> > enable audit and other non-obvious choices. Added a depends on SECURITY
> > (which previously existed through SECURITY_NETWORK) so that SELinux
> > would not always show up, but would be easy and intuitive to find.
> >
> > Signed-off-by: Eric Paris <eparis@redhat.com>
> > Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
> > Signed-off-by: James Morris <jmorris@e.namei>
> > ---
> > security/selinux/Kconfig | 7 ++++++-
> > 1 files changed, 6 insertions(+), 1 deletions(-)
> >
> > diff --git a/security/selinux/Kconfig b/security/selinux/Kconfig
> > index b32a459..40b97e6 100644
> > --- a/security/selinux/Kconfig
> > +++ b/security/selinux/Kconfig
> > @@ -1,6 +1,10 @@
> > config SECURITY_SELINUX
> > bool "NSA SELinux Support"
> > - depends on SECURITY_NETWORK && AUDIT && NET && INET
> > + depends on SECURITY
> > + select SECURITY_NETWORK
> > + select AUDIT
> > + select NET
> > + select INET
> > select NETWORK_SECMARK
> > default n
> > help
>
> I doth protest. Enabling the entire NET subsystem thru a hidden
> select is awful. Select should be used (sparingly) to enable
> library code only. If someone wants NET enabled, they should
> enable it overtly, not covertly.

Does that apply to all the options, or only to NET (e.g. is it ok to
select AUDIT)? I thought that this patch came out of earlier
discussions about proper use of select vs. depends. It may have gone
too far, but I'm not sure it should be discarded entirely.

>
>
> > @@ -9,6 +13,7 @@ config SECURITY_SELINUX
> > You can obtain the policy compiler (checkpolicy), the utility for
> > labeling filesystems (setfiles), and an example policy configuration
> > from <http://www.nsa.gov/selinux/>.
> > +
> > If you are unsure how to answer this question, answer N.
> >
> > config SECURITY_SELINUX_BOOTPARAM
>
>
>
> ---
> ~Randy
--
Stephen Smalley
National Security Agency

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