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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: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Feb 28, 2018
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tools/testing/selftests/net/forwarding/router_multipath.sh
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| @@ -0,0 +1,209 @@ | ||
| #!/bin/bash | ||
| # SPDX-License-Identifier: GPL-2.0 | ||
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| NUM_NETIFS=8 | ||
| source lib.sh | ||
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| h1_create() | ||
| { | ||
| vrf_create "vrf-h1" | ||
| ip link set dev $h1 master vrf-h1 | ||
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| ip link set dev vrf-h1 up | ||
| ip link set dev $h1 up | ||
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| ip address add 192.0.2.2/24 dev $h1 | ||
| ip address add 2001:db8:1::2/64 dev $h1 | ||
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| 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 | ||
| } | ||
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| h1_destroy() | ||
| { | ||
| ip route del 2001:db8:2::/64 vrf vrf-h1 | ||
| ip route del 198.51.100.0/24 vrf vrf-h1 | ||
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| ip address del 2001:db8:1::2/64 dev $h1 | ||
| ip address del 192.0.2.2/24 dev $h1 | ||
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| ip link set dev $h1 down | ||
| vrf_destroy "vrf-h1" | ||
| } | ||
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| h2_create() | ||
| { | ||
| vrf_create "vrf-h2" | ||
| ip link set dev $h2 master vrf-h2 | ||
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| ip link set dev vrf-h2 up | ||
| ip link set dev $h2 up | ||
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| ip address add 198.51.100.2/24 dev $h2 | ||
| ip address add 2001:db8:2::2/64 dev $h2 | ||
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| 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 | ||
| } | ||
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| h2_destroy() | ||
| { | ||
| ip route del 2001:db8:1::/64 vrf vrf-h2 | ||
| ip route del 192.0.2.0/24 vrf vrf-h2 | ||
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| ip address del 2001:db8:2::2/64 dev $h2 | ||
| ip address del 198.51.100.2/24 dev $h2 | ||
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| ip link set dev $h2 down | ||
| vrf_destroy "vrf-h2" | ||
| } | ||
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| 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 | ||
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| 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 | ||
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| ip address add 192.0.2.1/24 dev $rp11 | ||
| ip address add 2001:db8:1::1/64 dev $rp11 | ||
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| ip address add 169.254.2.12/24 dev $rp12 | ||
| ip address add fe80:2::12/64 dev $rp12 | ||
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| ip address add 169.254.3.13/24 dev $rp13 | ||
| ip address add fe80:3::13/64 dev $rp13 | ||
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| 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 | ||
| } | ||
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| router1_destroy() | ||
| { | ||
| ip route del 2001:db8:2::/64 vrf vrf-r1 | ||
| ip route del 198.51.100.0/24 vrf vrf-r1 | ||
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| ip address del fe80:3::13/64 dev $rp13 | ||
| ip address del 169.254.3.13/24 dev $rp13 | ||
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| ip address del fe80:2::12/64 dev $rp12 | ||
| ip address del 169.254.2.12/24 dev $rp12 | ||
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| ip address del 2001:db8:1::1/64 dev $rp11 | ||
| ip address del 192.0.2.1/24 dev $rp11 | ||
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| ip link set dev $rp13 down | ||
| ip link set dev $rp12 down | ||
| ip link set dev $rp11 down | ||
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| vrf_destroy "vrf-r1" | ||
| } | ||
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| 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 | ||
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| 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 | ||
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| ip address add 198.51.100.1/24 dev $rp21 | ||
| ip address add 2001:db8:2::1/64 dev $rp21 | ||
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| ip address add 169.254.2.22/24 dev $rp22 | ||
| ip address add fe80:2::22/64 dev $rp22 | ||
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| ip address add 169.254.3.23/24 dev $rp23 | ||
| ip address add fe80:3::23/64 dev $rp23 | ||
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| 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 | ||
| } | ||
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| router2_destroy() | ||
| { | ||
| ip route del 2001:db8:1::/64 vrf vrf-r2 | ||
| ip route del 192.0.2.0/24 vrf vrf-r2 | ||
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| ip address del fe80:3::23/64 dev $rp23 | ||
| ip address del 169.254.3.23/24 dev $rp23 | ||
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| ip address del fe80:2::22/64 dev $rp22 | ||
| ip address del 169.254.2.22/24 dev $rp22 | ||
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| ip address del 2001:db8:2::1/64 dev $rp21 | ||
| ip address del 198.51.100.1/24 dev $rp21 | ||
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| ip link set dev $rp23 down | ||
| ip link set dev $rp22 down | ||
| ip link set dev $rp21 down | ||
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| vrf_destroy "vrf-r2" | ||
| } | ||
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| setup_prepare() | ||
| { | ||
| h1=${NETIFS[p1]} | ||
| rp11=${NETIFS[p2]} | ||
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| rp12=${NETIFS[p3]} | ||
| rp22=${NETIFS[p4]} | ||
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| rp13=${NETIFS[p5]} | ||
| rp23=${NETIFS[p6]} | ||
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| rp21=${NETIFS[p7]} | ||
| h2=${NETIFS[p8]} | ||
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| vrf_prepare | ||
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| h1_create | ||
| h2_create | ||
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| router1_create | ||
| router2_create | ||
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| forwarding_enable | ||
| } | ||
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| cleanup() | ||
| { | ||
| pre_cleanup | ||
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| forwarding_restore | ||
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| router2_destroy | ||
| router1_destroy | ||
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| h2_destroy | ||
| h1_destroy | ||
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| vrf_cleanup | ||
| } | ||
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| trap cleanup EXIT | ||
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| setup_prepare | ||
| setup_wait | ||
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| ping_test $h1 198.51.100.2 | ||
| ping6_test $h1 2001:db8:2::2 | ||
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| exit $EXIT_STATUS |