mbox series

[net-next,iproute2,0/3] net/sched: Introduce tc connection tracking

Message ID 1562489628-5925-1-git-send-email-paulb@mellanox.com
Headers show
Series net/sched: Introduce tc connection tracking | expand

Message

Paul Blakey July 7, 2019, 8:53 a.m. UTC 
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

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/pkt_cls.h      |  17 ++
 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 +
 9 files changed, 916 insertions(+), 2 deletions(-)
 create mode 100644 include/uapi/linux/tc_act/tc_ct.h
 create mode 100644 tc/m_ct.c