[net-next,iproute2,v2,0/3] net/sched: Introduce tc connection tracking
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Message ID 1562832867-32347-1-git-send-email-paulb@mellanox.com
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  • net/sched: Introduce tc connection tracking
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Paul Blakey July 11, 2019, 8:14 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

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

Comments

Paul Blakey July 18, 2019, 3 p.m. UTC | #1
Hey guys,

any more comments?

thanks,

Paul.
'Marcelo Ricardo Leitner' July 18, 2019, 4:52 p.m. UTC | #2
On Thu, Jul 18, 2019 at 03:00:34PM +0000, Paul Blakey wrote:
> Hey guys,
> 
> any more comments?

From my side, just the man page on tc-ct(8) that is missing.
Everything else seems to be in place.

Thanks,
Marcelo
David Ahern July 18, 2019, 4:58 p.m. UTC | #3
On 7/18/19 10:52 AM, Marcelo Ricardo Leitner wrote:
> On Thu, Jul 18, 2019 at 03:00:34PM +0000, Paul Blakey wrote:
>> Hey guys,
>>
>> any more comments?
> 
> From my side, just the man page on tc-ct(8) that is missing.
> Everything else seems to be in place.
> 
> Thanks,
> Marcelo
> 

Paul: If there are no other comments, I'll push these to iproute2-next
later today. In that case, send the man page as a follow on patch.
David Ahern July 18, 2019, 10:42 p.m. UTC | #4
On 7/11/19 2:14 AM, Paul Blakey wrote:
> 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.
> 

...

> 
> 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
> 

applied to iproute2-next. Thanks