netdev - [PATCH iproute2-next v3 0/3] Provide support for IOAM

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Date:   Sun,  1 Aug 2021 14:45:49 +0200
From:   Justin Iurman <justin.iurman@...ege.be>
To:     netdev@...r.kernel.org
Cc:     stephen@...workplumber.org, dsahern@...il.com,
        justin.iurman@...ege.be
Subject: [PATCH iproute2-next v3 0/3] Provide support for IOAM

v3:
 - Use strcmp instead of matches
 - Use genl_init_handle instead of rtnl_open_byproto/genl_resolve_family
 - Refine the output of schemas data
 - distinguish trace options by adding another keyword, in this case "prealloc":
   "encap ioam6 trace **prealloc** type ...." (anticipate future implems)

v2:
 - Use print_{hex,0xhex} instead of print_string when possible (patch #1)


The IOAM patchset was merged recently (see net-next commits [1,2,3,4,5,6]).
Therefore, this patchset provides support for IOAM inside iproute2, as well as
manpage documentation. Here is a summary of added features inside iproute2.

(1) configure IOAM namespaces and schemas:

$ ip ioam
Usage:	ip ioam { COMMAND | help }
	ip ioam namespace show
	ip ioam namespace add ID [ data DATA32 ] [ wide DATA64 ]
	ip ioam namespace del ID
	ip ioam schema show
	ip ioam schema add ID DATA
	ip ioam schema del ID
	ip ioam namespace set ID schema { ID | none }
	
(2) provide a new encap type to insert the IOAM pre-allocated trace:

$ ip -6 ro ad fc00::1/128 encap ioam6 trace prealloc type 0x800000 ns 1 size 12 dev eth0

  [1] db67f219fc9365a0c456666ed7c134d43ab0be8a
  [2] 9ee11f0fff205b4b3df9750bff5e94f97c71b6a0
  [3] 8c6f6fa6772696be0c047a711858084b38763728
  [4] 3edede08ff37c6a9370510508d5eeb54890baf47
  [5] de8e80a54c96d2b75377e0e5319a64d32c88c690
  [6] 968691c777af78d2daa2ee87cfaeeae825255a58

Justin Iurman (3):
  Add, show, link, remove IOAM namespaces and schemas
  New IOAM6 encap type for routes
  IOAM man8

 include/uapi/linux/ioam6.h          | 133 +++++++++++
 include/uapi/linux/ioam6_genl.h     |  52 +++++
 include/uapi/linux/ioam6_iptunnel.h |  20 ++
 include/uapi/linux/lwtunnel.h       |   1 +
 ip/Makefile                         |   2 +-
 ip/ip.c                             |   3 +-
 ip/ip_common.h                      |   1 +
 ip/ipioam6.c                        | 340 ++++++++++++++++++++++++++++
 ip/iproute.c                        |   5 +-
 ip/iproute_lwtunnel.c               | 127 +++++++++++
 man/man8/ip-ioam.8                  |  72 ++++++
 man/man8/ip-route.8.in              |  36 ++-
 man/man8/ip.8                       |   7 +-
 13 files changed, 793 insertions(+), 6 deletions(-)
 create mode 100644 include/uapi/linux/ioam6.h
 create mode 100644 include/uapi/linux/ioam6_genl.h
 create mode 100644 include/uapi/linux/ioam6_iptunnel.h
 create mode 100644 ip/ipioam6.c
 create mode 100644 man/man8/ip-ioam.8

-- 
2.25.1