linux-kernel - Re: [PATCH ghak25 v4 1/3] audit: tidy and extend netfilter_cfg x

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Date:   Tue, 28 Apr 2020 18:15:22 -0400
From:   Paul Moore <paul@...l-moore.com>
To:     Richard Guy Briggs <rgb@...hat.com>
Cc:     Linux-Audit Mailing List <linux-audit@...hat.com>,
        LKML <linux-kernel@...r.kernel.org>,
        netfilter-devel@...r.kernel.org, sgrubb@...hat.com,
        omosnace@...hat.com, fw@...len.de, twoerner@...hat.com,
        Eric Paris <eparis@...isplace.org>, ebiederm@...ssion.com,
        tgraf@...radead.org
Subject: Re: [PATCH ghak25 v4 1/3] audit: tidy and extend netfilter_cfg
 x_tables and ebtables logging

On Wed, Apr 22, 2020 at 5:40 PM Richard Guy Briggs <rgb@...hat.com> wrote:
>
> NETFILTER_CFG record generation was inconsistent for x_tables and
> ebtables configuration changes.  The call was needlessly messy and there
> were supporting records missing at times while they were produced when
> not requested.  Simplify the logging call into a new audit_log_nfcfg
> call.  Honour the audit_enabled setting while more consistently
> recording information including supporting records by tidying up dummy
> checks.
>
> Add an op= field that indicates the operation being performed (register
> or replace).
>
> Here is the enhanced sample record:
>   type=NETFILTER_CFG msg=audit(1580905834.919:82970): table=filter family=2 entries=83 op=replace
>
> Generate audit NETFILTER_CFG records on ebtables table registration.
> Previously this was being done for x_tables registration and replacement
> operations and ebtables table replacement only.
>
> See: https://github.com/linux-audit/audit-kernel/issues/25
> See: https://github.com/linux-audit/audit-kernel/issues/35
> See: https://github.com/linux-audit/audit-kernel/issues/43
>
> Signed-off-by: Richard Guy Briggs <rgb@...hat.com>
> ---
>  include/linux/audit.h           | 21 +++++++++++++++++++++
>  kernel/auditsc.c                | 24 ++++++++++++++++++++++++
>  net/bridge/netfilter/ebtables.c | 12 ++++--------
>  net/netfilter/x_tables.c        | 12 +++---------
>  4 files changed, 52 insertions(+), 17 deletions(-)

Merged into audit/next, thanks.

-- 
paul moore
www.paul-moore.com