linux-kernel - Re: [PATCH ghak103 V1] audit: add support for fcaps v3

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Date:   Fri, 25 Jan 2019 16:04:59 -0500
From:   Paul Moore <paul@...l-moore.com>
To:     Richard Guy Briggs <rgb@...hat.com>
Cc:     Linux Security Module list 
        <linux-security-module@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux-Audit Mailing List <linux-audit@...hat.com>,
        Steve Grubb <sgrubb@...hat.com>,
        Eric Paris <eparis@...hat.com>, Serge Hallyn <serge@...lyn.com>
Subject: Re: [PATCH ghak103 V1] audit: add support for fcaps v3

On Wed, Jan 23, 2019 at 9:37 PM Richard Guy Briggs <rgb@...hat.com> wrote:
>
> V3 namespaced file capabilities were introduced in
> commit 8db6c34f1dbc ("Introduce v3 namespaced file capabilities")
>
> Add support for these by adding the "frootid" field to the existing
> fcaps fields in the NAME and BPRM_FCAPS records.
>
> Please see github issue
> https://github.com/linux-audit/audit-kernel/issues/103
>
> Signed-off-by: Richard Guy Briggs <rgb@...hat.com>
> ---
> Passes audit-testsuite.
>
>  include/linux/capability.h | 5 +++--
>  kernel/audit.c             | 6 ++++--
>  kernel/audit.h             | 1 +
>  kernel/auditsc.c           | 4 ++++
>  security/commoncap.c       | 2 ++
>  5 files changed, 14 insertions(+), 4 deletions(-)
>
> diff --git a/include/linux/capability.h b/include/linux/capability.h
> index f640dcbc880c..f6bb691547fd 100644
> --- a/include/linux/capability.h
> +++ b/include/linux/capability.h
> @@ -14,7 +14,7 @@
>  #define _LINUX_CAPABILITY_H
>
>  #include <uapi/linux/capability.h>
> -
> +#include <linux/uidgid.h>
>
>  #define _KERNEL_CAPABILITY_VERSION _LINUX_CAPABILITY_VERSION_3
>  #define _KERNEL_CAPABILITY_U32S    _LINUX_CAPABILITY_U32S_3
> @@ -25,11 +25,12 @@
>         __u32 cap[_KERNEL_CAPABILITY_U32S];
>  } kernel_cap_t;
>
> -/* exact same as vfs_cap_data but in cpu endian and always filled completely */
> +/* exact same as vfs_ns_cap_data but in cpu endian and always filled completely */

Removed "exact" from the comment above so it fits an 80 char line
width.  Please watch for this in your patches, I care a lot about line
widths.

Otherwise as long as Serge is happy with the capabilities bits, I'm
happy with the audit bits; merged.

--
paul moore
www.paul-moore.com