From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ido Schimmel Subject: [RFC PATCH net-next 05/12] selftests: forwarding: Create test topology for multipath routing Date: Mon, 15 Jan 2018 21:18:46 +0200 Message-ID: <20180115191853.26129-6-idosch@mellanox.com> References: <20180115191853.26129-1-idosch@mellanox.com> Mime-Version: 1.0 Content-Type: text/plain Cc: davem@davemloft.net, shuah@kernel.org, dsahern@gmail.com, nikolay@cumulusnetworks.com, roopa@cumulusnetworks.com, andy@greyhouse.net, jiri@mellanox.com, mlxsw@mellanox.com, saeedm@mellanox.com, tariqt@mellanox.com, jhs@mojatatu.com, lucasb@mojatatu.com, f.fainelli@gmail.com, vivien.didelot@savoirfairelinux.com, andrew@lunn.ch, jakub.kicinski@netronome.com, simon.horman@netronome.com, Ido Schimmel To: netdev@vger.kernel.org, linux-kselftest@vger.kernel.org Return-path: Received: from mail-db5eur01on0070.outbound.protection.outlook.com ([104.47.2.70]:36831 "EHLO EUR01-DB5-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751229AbeAOTUa (ORCPT ); Mon, 15 Jan 2018 14:20:30 -0500 In-Reply-To: <20180115191853.26129-1-idosch@mellanox.com> Sender: netdev-owner@vger.kernel.org List-ID: Create a topology with two hosts, each directly connected to a different router. Both routers are connected using two links, enabling multipath routing. Test IPv4 and IPv6 ping using default MTU and large MTU. Signed-off-by: Ido Schimmel --- tools/testing/selftests/forwarding/Makefile | 2 +- .../selftests/forwarding/router_multipath.sh | 215 +++++++++++++++++++++ 2 files changed, 216 insertions(+), 1 deletion(-) create mode 100755 tools/testing/selftests/forwarding/router_multipath.sh diff --git a/tools/testing/selftests/forwarding/Makefile b/tools/testing/selftests/forwarding/Makefile index 4efb0c96af94..48e5de22db05 100644 --- a/tools/testing/selftests/forwarding/Makefile +++ b/tools/testing/selftests/forwarding/Makefile @@ -1,6 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 # Makefile for forwarding selftests -TEST_PROGS := bridge.sh router.sh +TEST_PROGS := bridge.sh router.sh router_multipath.sh include ../lib.mk diff --git a/tools/testing/selftests/forwarding/router_multipath.sh b/tools/testing/selftests/forwarding/router_multipath.sh new file mode 100755 index 000000000000..70f9f2c3794e --- /dev/null +++ b/tools/testing/selftests/forwarding/router_multipath.sh @@ -0,0 +1,215 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +NUM_NETIFS=8 +source lib.sh + +h1_create() +{ + vrf_create "vrf-h1" 1 + ip link set dev $h1 master vrf-h1 + + ip link set dev vrf-h1 up + ip link set dev $h1 up + + ip address add 192.0.2.2/24 dev $h1 + ip address add 2001:db8:1::2/64 dev $h1 + + ip route add 198.51.100.0/24 vrf vrf-h1 nexthop via 192.0.2.1 + ip route add 2001:db8:2::/64 vrf vrf-h1 nexthop via 2001:db8:1::1 +} + +h1_destroy() +{ + ip route del 2001:db8:2::/64 vrf vrf-h1 + ip route del 198.51.100.0/24 vrf vrf-h1 + + ip address del 2001:db8:1::2/64 dev $h1 + ip address del 192.0.2.2/24 dev $h1 + + ip link set dev $h1 down + vrf_destroy "vrf-h1" 1 +} + +h2_create() +{ + vrf_create "vrf-h2" 2 + ip link set dev $h2 master vrf-h2 + + ip link set dev vrf-h2 up + ip link set dev $h2 up + + ip address add 198.51.100.2/24 dev $h2 + ip address add 2001:db8:2::2/64 dev $h2 + + ip route add 192.0.2.0/24 vrf vrf-h2 nexthop via 198.51.100.1 + ip route add 2001:db8:1::/64 vrf vrf-h2 nexthop via 2001:db8:2::1 +} + +h2_destroy() +{ + ip route del 2001:db8:1::/64 vrf vrf-h2 + ip route del 192.0.2.0/24 vrf vrf-h2 + + ip address del 2001:db8:2::2/64 dev $h2 + ip address del 198.51.100.2/24 dev $h2 + + ip link set dev $h2 down + vrf_destroy "vrf-h2" 2 +} + +router1_create() +{ + vrf_create "vrf-r1" 3 + ip link set dev $rp11 master vrf-r1 + ip link set dev $rp12 master vrf-r1 + ip link set dev $rp13 master vrf-r1 + + ip link set dev vrf-r1 up + ip link set dev $rp11 up + ip link set dev $rp12 up + ip link set dev $rp13 up + + ip address add 192.0.2.1/24 dev $rp11 + ip address add 2001:db8:1::1/64 dev $rp11 + + ip address add 169.254.2.12/24 dev $rp12 + ip address add fe80:2::12/64 dev $rp12 + + ip address add 169.254.3.13/24 dev $rp13 + ip address add fe80:3::13/64 dev $rp13 + + ip route add 198.51.100.0/24 vrf vrf-r1 \ + nexthop via 169.254.2.22 dev $rp12 \ + nexthop via 169.254.3.23 dev $rp13 + ip route add 2001:db8:2::/64 vrf vrf-r1 \ + nexthop via fe80:2::22 dev $rp12 \ + nexthop via fe80:3::23 dev $rp13 +} + +router1_destroy() +{ + ip route del 2001:db8:2::/64 vrf vrf-r1 + ip route del 198.51.100.0/24 vrf vrf-r1 + + ip address del fe80:3::13/64 dev $rp13 + ip address del 169.254.3.13/24 dev $rp13 + + ip address del fe80:2::12/64 dev $rp12 + ip address del 169.254.2.12/24 dev $rp12 + + ip address del 2001:db8:1::1/64 dev $rp11 + ip address del 192.0.2.1/24 dev $rp11 + + ip link set dev $rp13 down + ip link set dev $rp12 down + ip link set dev $rp11 down + + vrf_destroy "vrf-r1" 3 +} + +router2_create() +{ + vrf_create "vrf-r2" 4 + ip link set dev $rp21 master vrf-r2 + ip link set dev $rp22 master vrf-r2 + ip link set dev $rp23 master vrf-r2 + + ip link set dev vrf-r2 up + ip link set dev $rp21 up + ip link set dev $rp22 up + ip link set dev $rp23 up + + ip address add 198.51.100.1/24 dev $rp21 + ip address add 2001:db8:2::1/64 dev $rp21 + + ip address add 169.254.2.22/24 dev $rp22 + ip address add fe80:2::22/64 dev $rp22 + + ip address add 169.254.3.23/24 dev $rp23 + ip address add fe80:3::23/64 dev $rp23 + + ip route add 192.0.2.0/24 vrf vrf-r2 \ + nexthop via 169.254.2.12 dev $rp22 \ + nexthop via 169.254.3.13 dev $rp23 + ip route add 2001:db8:1::/64 vrf vrf-r2 \ + nexthop via fe80:2::12 dev $rp22 \ + nexthop via fe80:3::13 dev $rp23 +} + +router2_destroy() +{ + ip route del 2001:db8:1::/64 vrf vrf-r2 + ip route del 192.0.2.0/24 vrf vrf-r2 + + ip address del fe80:3::23/64 dev $rp23 + ip address del 169.254.3.23/24 dev $rp23 + + ip address del fe80:2::22/64 dev $rp22 + ip address del 169.254.2.22/24 dev $rp22 + + ip address del 2001:db8:2::1/64 dev $rp21 + ip address del 198.51.100.1/24 dev $rp21 + + ip link set dev $rp23 down + ip link set dev $rp22 down + ip link set dev $rp21 down + + vrf_destroy "vrf-r2" 4 +} + +setup_prepare() +{ + h1=${NETIFS[p1]} + rp11=${NETIFS[p2]} + + rp12=${NETIFS[p3]} + rp22=${NETIFS[p4]} + + rp13=${NETIFS[p5]} + rp23=${NETIFS[p6]} + + rp21=${NETIFS[p7]} + h2=${NETIFS[p8]} + + netifs_arr=($h1 $rp11 $rp12 $rp22 $rp13 $rp23 $rp21 $h2) + + vrf_prepare + + h1_create + h2_create + + router1_create + router2_create + + forwarding_enable +} + +cleanup() +{ + forwarding_restore + + router2_destroy + router1_destroy + + h2_destroy + h1_destroy + + vrf_cleanup +} + +trap cleanup EXIT + +setup_prepare +setup_wait + +ping_test "vrf-h1" 198.51.100.2 +ping_test "vrf-h1" 2001:db8:2::2 + +old_mtu=$(mtu_get $h1) +mtu_change 9000 "${netifs_arr[@]}" +ping_test "vrf-h1" 198.51.100.2 +ping_test "vrf-h1" 2001:db8:2::2 +mtu_change $old_mtu "${netifs_arr[@]}" + +exit $EXIT_STATUS -- 2.14.3