From patchwork Thu Mar 26 14:01:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ido Schimmel X-Patchwork-Id: 221792 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.7 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4EAA6C2D0E8 for ; Thu, 26 Mar 2020 14:02:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1621720748 for ; Thu, 26 Mar 2020 14:02:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b="AzUdg2MG" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727932AbgCZOCC (ORCPT ); Thu, 26 Mar 2020 10:02:02 -0400 Received: from out2-smtp.messagingengine.com ([66.111.4.26]:39565 "EHLO out2-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727910AbgCZOCA (ORCPT ); Thu, 26 Mar 2020 10:02:00 -0400 Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.nyi.internal (Postfix) with ESMTP id 8E66B5C01E2; Thu, 26 Mar 2020 10:01:58 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute4.internal (MEProxy); Thu, 26 Mar 2020 10:01:58 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm2; bh=Iz7x1SfsZIbrVFT4VVhpuwZgskO1FEbgJoqYdjnCaq0=; b=AzUdg2MG IP42Gv2bWWPxWeMg+UZ4MhjEcGM1blvOpcxKGldS/m2rZekn7RBcymySsKeFSZtP ghcBSOPLIQH7eULNEXqhD3c0ZzOE+Kyz3qmFDPF/R94SzBvU2iSm0DTfTZI0C27p wf9lcxUYkXivzSUCmV56isPa7ni3rz3DdPUwuOSiLzXJLU5w9a8ti+CbnRgI2AWf PGbNpyrpcerlQODhcCdi/TQ4xoTpG6bO16ixQSwkpxFwCpeuqST+t4I/QFWpCp7j oRQcLmCIJyzvJBXSVXnqz1oLu2WHKGLuAycClyNuIypfU1u9BL6vTERYbCag280D +QptFZCP8f27Ng== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedugedrudehiedgheelucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucenucfjughrpefhvffufffkofgjfhgggfestdekre dtredttdenucfhrhhomhepkfguohcuufgthhhimhhmvghluceoihguohhstghhsehiugho shgthhdrohhrgheqnecukfhppeejledrudekuddrudefvddrudeludenucevlhhushhtvg hrufhiiigvpeegnecurfgrrhgrmhepmhgrihhlfhhrohhmpehiughoshgthhesihguohhs tghhrdhorhhg X-ME-Proxy: Received: from splinter.mtl.com (bzq-79-181-132-191.red.bezeqint.net [79.181.132.191]) by mail.messagingengine.com (Postfix) with ESMTPA id 02C4530696D4; Thu, 26 Mar 2020 10:01:56 -0400 (EDT) From: Ido Schimmel To: netdev@vger.kernel.org Cc: davem@davemloft.net, kuba@kernel.org, jiri@mellanox.com, petrm@mellanox.com, mlxsw@mellanox.com, Ido Schimmel Subject: [PATCH net-next 5/6] selftests: forwarding: Add a forwarding test for pedit munge dsfield Date: Thu, 26 Mar 2020 16:01:13 +0200 Message-Id: <20200326140114.1393972-6-idosch@idosch.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200326140114.1393972-1-idosch@idosch.org> References: <20200326140114.1393972-1-idosch@idosch.org> MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Petr Machata Add a test that runs packets with dsfield set, and test that pedit adjusts the DSCP or ECN parts or the whole field. Signed-off-by: Petr Machata Signed-off-by: Ido Schimmel --- .../selftests/net/forwarding/pedit_dsfield.sh | 238 ++++++++++++++++++ 1 file changed, 238 insertions(+) create mode 100755 tools/testing/selftests/net/forwarding/pedit_dsfield.sh diff --git a/tools/testing/selftests/net/forwarding/pedit_dsfield.sh b/tools/testing/selftests/net/forwarding/pedit_dsfield.sh new file mode 100755 index 000000000000..b50081855913 --- /dev/null +++ b/tools/testing/selftests/net/forwarding/pedit_dsfield.sh @@ -0,0 +1,238 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +# This test sends traffic from H1 to H2. Either on ingress of $swp1, or on +# egress of $swp2, the traffic is acted upon by a pedit action. An ingress +# filter installed on $h2 verifies that the packet looks like expected. +# +# +----------------------+ +----------------------+ +# | H1 | | H2 | +# | + $h1 | | $h2 + | +# | | 192.0.2.1/28 | | 192.0.2.2/28 | | +# +----|-----------------+ +----------------|-----+ +# | | +# +----|----------------------------------------------------------------|-----+ +# | SW | | | +# | +-|----------------------------------------------------------------|-+ | +# | | + $swp1 BR $swp2 + | | +# | +--------------------------------------------------------------------+ | +# +---------------------------------------------------------------------------+ + +ALL_TESTS=" + ping_ipv4 + test_ip_dsfield + test_ip_dscp + test_ip_ecn + test_ip_dscp_ecn +" + +NUM_NETIFS=4 +source lib.sh +source tc_common.sh + +: ${HIT_TIMEOUT:=2000} # ms + +h1_create() +{ + simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64 +} + +h1_destroy() +{ + simple_if_fini $h1 192.0.2.1/28 2001:db8:1::1/64 +} + +h2_create() +{ + simple_if_init $h2 192.0.2.2/28 2001:db8:1::2/64 + tc qdisc add dev $h2 clsact +} + +h2_destroy() +{ + tc qdisc del dev $h2 clsact + simple_if_fini $h2 192.0.2.2/28 2001:db8:1::2/64 +} + +switch_create() +{ + ip link add name br1 up type bridge vlan_filtering 1 + ip link set dev $swp1 master br1 + ip link set dev $swp1 up + ip link set dev $swp2 master br1 + ip link set dev $swp2 up + + tc qdisc add dev $swp1 clsact + tc qdisc add dev $swp2 clsact +} + +switch_destroy() +{ + tc qdisc del dev $swp2 clsact + tc qdisc del dev $swp1 clsact + + ip link set dev $swp2 nomaster + ip link set dev $swp1 nomaster + ip link del dev br1 +} + +setup_prepare() +{ + h1=${NETIFS[p1]} + swp1=${NETIFS[p2]} + + swp2=${NETIFS[p3]} + h2=${NETIFS[p4]} + + h2mac=$(mac_get $h2) + + vrf_prepare + h1_create + h2_create + switch_create +} + +cleanup() +{ + pre_cleanup + + switch_destroy + h2_destroy + h1_destroy + vrf_cleanup +} + +ping_ipv4() +{ + ping_test $h1 192.0.2.2 +} + +do_test_pedit_dsfield_common() +{ + local pedit_locus=$1; shift + local pedit_action=$1; shift + local mz_flags=$1; shift + + RET=0 + + # TOS 125: DSCP 31, ECN 1. Used for testing that the relevant part is + # overwritten when zero is selected. + $MZ $mz_flags $h1 -c 10 -d 20msec -p 100 \ + -a own -b $h2mac -q -t tcp tos=0x7d,sp=54321,dp=12345 + + local pkts + pkts=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= 10" \ + tc_rule_handle_stats_get "dev $h2 ingress" 101) + check_err $? "Expected to get 10 packets, but got $pkts." + log_test "$pedit_locus pedit $pedit_action" +} + +do_test_pedit_dsfield() +{ + local pedit_locus=$1; shift + local pedit_action=$1; shift + local match_prot=$1; shift + local match_flower=$1; shift + local mz_flags=$1; shift + local saddr=$1; shift + local daddr=$1; shift + + tc filter add $pedit_locus handle 101 pref 1 \ + flower action pedit ex munge $pedit_action + tc filter add dev $h2 ingress handle 101 pref 1 prot $match_prot \ + flower skip_hw $match_flower action pass + + do_test_pedit_dsfield_common "$pedit_locus" "$pedit_action" "$mz_flags" + + tc filter del dev $h2 ingress pref 1 + tc filter del $pedit_locus pref 1 +} + +do_test_ip_dsfield() +{ + local locus=$1; shift + local dsfield + + for dsfield in 0 1 2 3 128 252 253 254 255; do + do_test_pedit_dsfield "$locus" \ + "ip dsfield set $dsfield" \ + ip "ip_tos $dsfield" \ + "-A 192.0.2.1 -B 192.0.2.2" + done +} + +test_ip_dsfield() +{ + do_test_ip_dsfield "dev $swp1 ingress" + do_test_ip_dsfield "dev $swp2 egress" +} + +do_test_ip_dscp() +{ + local locus=$1; shift + local dscp + + for dscp in 0 1 2 3 32 61 62 63; do + do_test_pedit_dsfield "$locus" \ + "ip dsfield set $((dscp << 2)) retain 0xfc" \ + ip "ip_tos $(((dscp << 2) | 1))" \ + "-A 192.0.2.1 -B 192.0.2.2" + done +} + +test_ip_dscp() +{ + do_test_ip_dscp "dev $swp1 ingress" + do_test_ip_dscp "dev $swp2 egress" +} + +do_test_ip_ecn() +{ + local locus=$1; shift + local ecn + + for ecn in 0 1 2 3; do + do_test_pedit_dsfield "$locus" \ + "ip dsfield set $ecn retain 0x03" \ + ip "ip_tos $((124 | $ecn))" \ + "-A 192.0.2.1 -B 192.0.2.2" + done +} + +test_ip_ecn() +{ + do_test_ip_ecn "dev $swp1 ingress" + do_test_ip_ecn "dev $swp2 egress" +} + +do_test_ip_dscp_ecn() +{ + local locus=$1; shift + + tc filter add $locus handle 101 pref 1 \ + flower action pedit ex munge ip dsfield set 124 retain 0xfc \ + action pedit ex munge ip dsfield set 1 retain 0x03 + tc filter add dev $h2 ingress handle 101 pref 1 prot ip \ + flower skip_hw ip_tos 125 action pass + + do_test_pedit_dsfield_common "$locus" "set DSCP + set ECN" \ + "-A 192.0.2.1 -B 192.0.2.2" + + tc filter del dev $h2 ingress pref 1 + tc filter del $locus pref 1 +} + +test_ip_dscp_ecn() +{ + do_test_ip_dscp_ecn "dev $swp1 ingress" + do_test_ip_dscp_ecn "dev $swp2 egress" +} + +trap cleanup EXIT + +setup_prepare +setup_wait + +tests_run + +exit $EXIT_STATUS