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Commit 937eeb34 authored by Ido Schimmel's avatar Ido Schimmel Committed by David S. Miller
Browse files

selftests: forwarding: Create test topology for multipath routing 



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: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 7b7bc875

tools/testing/selftests/net/forwarding/router_multipath.sh

0 → 100755
+209 −0
Original line number Diff line number Diff line 
#!/bin/bash

# SPDX-License-Identifier: GPL-2.0



NUM_NETIFS=8

source lib.sh



h1_create()

{

	vrf_create "vrf-h1"

	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"

}



h2_create()

{

	vrf_create "vrf-h2"

	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"

}



router1_create()

{

	vrf_create "vrf-r1"

	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"

}



router2_create()

{

	vrf_create "vrf-r2"

	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"

}



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]}



	vrf_prepare



	h1_create

	h2_create



	router1_create

	router2_create



	forwarding_enable

}



cleanup()

{

	pre_cleanup



	forwarding_restore



	router2_destroy

	router1_destroy



	h2_destroy

	h1_destroy



	vrf_cleanup

}



trap cleanup EXIT



setup_prepare

setup_wait



ping_test $h1 198.51.100.2

ping6_test $h1 2001:db8:2::2



exit $EXIT_STATUS