netdev - [PATCH net-next iproute2 v2 0/3] net/sched: Introduce tc connection tracking

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Date:   Thu, 11 Jul 2019 11:14:24 +0300
From:   Paul Blakey <paulb@...lanox.com>
To:     Jiri Pirko <jiri@...lanox.com>, Paul Blakey <paulb@...lanox.com>,
        Roi Dayan <roid@...lanox.com>,
        Yossi Kuperman <yossiku@...lanox.com>,
        Oz Shlomo <ozsh@...lanox.com>,
        Marcelo Ricardo Leitner <marcelo.leitner@...il.com>,
        netdev@...r.kernel.org, David Miller <davem@...emloft.net>,
        Aaron Conole <aconole@...hat.com>,
        Zhike Wang <wangzhike@...com>
Cc:     Rony Efraim <ronye@...lanox.com>, nst-kernel@...hat.com,
        John Hurley <john.hurley@...ronome.com>,
        Simon Horman <simon.horman@...ronome.com>,
        Justin Pettit <jpettit@....org>
Subject: [PATCH net-next iproute2 v2 0/3] net/sched: Introduce tc connection tracking

Hi,

This patch series add connection tracking capabilities in tc.
It does so via a new tc action, called act_ct, and new tc flower classifier matching.
Act ct and relevant flower matches, are still under review in net-next mailing list.

Usage is as follows:
$ tc qdisc add dev ens1f0_0 ingress
$ tc qdisc add dev ens1f0_1 ingress

$ tc filter add dev ens1f0_0 ingress \
  prio 1 chain 0 proto ip \
  flower ip_proto tcp ct_state -trk \
  action ct zone 2 pipe \
  action goto chain 2
$ tc filter add dev ens1f0_0 ingress \
  prio 1 chain 2 proto ip \
  flower ct_state +trk+new \
  action ct zone 2 commit mark 0xbb nat src addr 5.5.5.7 pipe \
  action mirred egress redirect dev ens1f0_1
$ tc filter add dev ens1f0_0 ingress \
  prio 1 chain 2 proto ip \
  flower ct_zone 2 ct_mark 0xbb ct_state +trk+est \
  action ct nat pipe \
  action mirred egress redirect dev ens1f0_1

$ tc filter add dev ens1f0_1 ingress \
  prio 1 chain 0 proto ip \
  flower ip_proto tcp ct_state -trk \
  action ct zone 2 pipe \
  action goto chain 1
$ tc filter add dev ens1f0_1 ingress \
  prio 1 chain 1 proto ip \
  flower ct_zone 2 ct_mark 0xbb ct_state +trk+est \
  action ct nat pipe \
  action mirred egress redirect dev ens1f0_0

Changelog:
V1->V2:
	Removed pkt_cls changes (as it was merged already)

Paul Blakey (3):
  tc: add NLA_F_NESTED flag to all actions options nested block
  tc: Introduce tc ct action
  tc: flower: Add matching on conntrack info

 include/uapi/linux/tc_act/tc_ct.h |  41 ++++
 man/man8/tc-flower.8              |  35 +++
 tc/Makefile                       |   1 +
 tc/f_flower.c                     | 276 ++++++++++++++++++++-
 tc/m_action.c                     |   3 +-
 tc/m_ct.c                         | 497 ++++++++++++++++++++++++++++++++++++++
 tc/tc_util.c                      |  44 ++++
 tc/tc_util.h                      |   4 +
 8 files changed, 899 insertions(+), 2 deletions(-)
 create mode 100644 include/uapi/linux/tc_act/tc_ct.h
 create mode 100644 tc/m_ct.c

-- 
1.8.3.1