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SubjectRe: [RFC PATCH 1/6] security/fbfam: Add a Kconfig to enable the fbfam feature
Hi,

On Thu, Sep 10, 2020 at 04:18:08PM -0700, Kees Cook wrote:
> On Thu, Sep 10, 2020 at 01:21:02PM -0700, Kees Cook wrote:
> > From: John Wood <john.wood@gmx.com>
> >
> > Add a menu entry under "Security options" to enable the "Fork brute
> > force attack mitigation" feature.
> >
> > Signed-off-by: John Wood <john.wood@gmx.com>
> > ---
> > security/Kconfig | 1 +
> > security/fbfam/Kconfig | 10 ++++++++++
> > 2 files changed, 11 insertions(+)
> > create mode 100644 security/fbfam/Kconfig
> >
> > diff --git a/security/Kconfig b/security/Kconfig
> > index 7561f6f99f1d..00a90e25b8d5 100644
> > --- a/security/Kconfig
> > +++ b/security/Kconfig
> > @@ -290,6 +290,7 @@ config LSM
> > If unsure, leave this as the default.
> >
> > source "security/Kconfig.hardening"
> > +source "security/fbfam/Kconfig"
>
> Given the layout you've chosen and the interface you've got, I think
> this should just be treated like a regular LSM.

Yes, throughout the review it seems the most appropiate is treat
this feature as a regular LSM. Thanks.

> >
> > endmenu
> >
> > diff --git a/security/fbfam/Kconfig b/security/fbfam/Kconfig
> > new file mode 100644
> > index 000000000000..bbe7f6aad369
> > --- /dev/null
> > +++ b/security/fbfam/Kconfig
> > @@ -0,0 +1,10 @@
> > +# SPDX-License-Identifier: GPL-2.0
> > +config FBFAM
>
> To jump on the bikeshed: how about just calling this
> FORK_BRUTE_FORCE_DETECTION or FORK_BRUTE, and the directory could be
> "brute", etc. "fbfam" doesn't tell anyone anything.

Understood. But how about use the fbfam abbreviation in the code? Like as
function name prefix, struct name prefix, ... It would be better to use a
more descriptive name in this scenario? It is not clear to me.

> --
> Kees Cook

Thanks,
John Wood

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