Re: [PATCH ghak25 v4 1/3] audit: tidy and extend netfilter_cfg x_tables and ebtables logging

From: Paul Moore
Date: Tue Apr 28 2020 - 18:15:37 EST


On Wed, Apr 22, 2020 at 5:40 PM Richard Guy Briggs <rgb@xxxxxxxxxx> 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@xxxxxxxxxx>
> ---
> 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