From patchwork Mon Oct 4 13:06:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Justin Iurman X-Patchwork-Id: 12533869 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7861FC433EF for ; Mon, 4 Oct 2021 13:09:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 651A261AF0 for ; Mon, 4 Oct 2021 13:09:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235684AbhJDNKt (ORCPT ); Mon, 4 Oct 2021 09:10:49 -0400 Received: from serv108.segi.ulg.ac.be ([139.165.32.111]:45343 "EHLO serv108.segi.ulg.ac.be" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234881AbhJDNJG (ORCPT ); Mon, 4 Oct 2021 09:09:06 -0400 Received: from ubuntu.home (148.24-240-81.adsl-dyn.isp.belgacom.be [81.240.24.148]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by serv108.segi.ulg.ac.be (Postfix) with ESMTPSA id 1AA23200E2A5; Mon, 4 Oct 2021 15:07:15 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 serv108.segi.ulg.ac.be 1AA23200E2A5 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=uliege.be; s=ulg20190529; t=1633352835; bh=HifNznjauFK0fX6GIX8XbylBiof8SR/BfGojRjxpX0U=; h=From:To:Cc:Subject:Date:From; b=GW0UX4sFJSnE3AMLGkAs8B/+lRPo5ZFevgneMPLP3V3L5NFBF7z1n+ynhjkHXkoME ZWR2HzpYB9/zFDBFp90iVIpebznV9vn83pQvhr1V+i+IJ/4DOtEDMb6s14CKPBUTgo kGH40ton+d8O/vk+IhohlN+oUGU73+nKn1dl8DHssee0qtG7kTaN6JeM4fobRZoovs il+V610pxaek/Wgyq6/GzU/ggUtKx9mN7if8Q7gvWeCZEolq5Z4Hk20j94yv3BAldX hGK1Qf2IvhgI/7LHd+wUGvlX+FVCDyjI3bSYxRIOkb04mPS7l9BycZClwqcNvIk2z/ YXtaU4oORIshg== From: Justin Iurman To: netdev@vger.kernel.org Cc: davem@davemloft.net, dsahern@kernel.org, stephen@networkplumber.org, justin.iurman@uliege.be Subject: [PATCH iproute2-next 0/2] Support for IOAM encap modes Date: Mon, 4 Oct 2021 15:06:49 +0200 Message-Id: <20211004130651.13571-1-justin.iurman@uliege.be> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: dsahern@gmail.com Following the series applied to net-next (see [1]), here are the corresponding changes to iproute2. In the current implementation, IOAM can only be inserted directly (i.e., only inside packets generated locally) by default, to be compliant with RFC8200. This patch adds support for in-transit packets and provides the ip6ip6 encapsulation of IOAM (RFC8200 compliant). Therefore, three ioam6 encap modes are defined: - inline: directly inserts IOAM inside packets (by default). - encap: ip6ip6 encapsulation of IOAM inside packets. - auto: either inline mode for packets generated locally or encap mode for in-transit packets. With current iproute2 implementation, it is configured this way: $ ip -6 r [...] encap ioam6 trace prealloc [...] The old syntax does not change (for backwards compatibility) and implicitly uses the inline mode. With the new syntax, an encap mode can be specified: (inline mode) $ ip -6 r [...] encap ioam6 mode inline trace prealloc [...] (encap mode) $ ip -6 r [...] encap ioam6 mode encap tundst fc00::2 trace prealloc [...] (auto mode) $ ip -6 r [...] encap ioam6 mode auto tundst fc00::2 trace prealloc [...] A tunnel destination address must be configured when using the encap mode or the auto mode. [1] https://lore.kernel.org/netdev/163335001045.30570.12527451523558030753.git-patchwork-notify@kernel.org/T/#m3b428d4142ee3a414ec803466c211dfdec6e0c09 Justin Iurman (2): Add support for IOAM encap modes Update documentation include/uapi/linux/ioam6_iptunnel.h | 29 ++++++ ip/iproute_lwtunnel.c | 142 ++++++++++++++++++++-------- man/man8/ip-route.8.in | 39 ++++++-- 3 files changed, 161 insertions(+), 49 deletions(-)