linux/tools/testing/selftests/net/forwarding/router_vid_1.sh
Petr Machata 5ade50e2df selftests: router_vid_1: Add a diagram, fix coding style
It is customary for selftests to have a comment with a topology diagram,
which serves to illustrate the situation in which the test is done. This
selftest lacks it. Add it.

While at it, fix the list of tests so that the test names are enumerated
one at a line.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-04 11:21:32 +01:00

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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# +--------------------+ +----------------------+
# | H1 | | H2 |
# | | | |
# | $h1.1 + | | + $h2.1 |
# | 192.0.2.2/24 | | | | 198.51.100.2/24 |
# | 2001:db8:1::2/64 | | | | 2001:db8:2::2/64 |
# | | | | | |
# | $h1 + | | + $h2 |
# | | | | | |
# +------------------|-+ +-|--------------------+
# | |
# +------------------|-------------------------|--------------------+
# | SW | | |
# | | | |
# | $rp1 + + $rp2 |
# | | | |
# | $rp1.1 + + $rp2.1 |
# | 192.0.2.1/24 198.51.100.1/24 |
# | 2001:db8:1::1/64 2001:db8:2::1/64 |
# | |
# +-----------------------------------------------------------------+
ALL_TESTS="
ping_ipv4
ping_ipv6
"
NUM_NETIFS=4
source lib.sh
h1_create()
{
vrf_create "vrf-h1"
ip link set dev vrf-h1 up
ip link set dev $h1 up
vlan_create $h1 1 vrf-h1 192.0.2.2/24 2001:db8:1::2/64
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
vlan_destroy $h1 1
ip link set dev $h1 down
ip link set dev vrf-h1 down
vrf_destroy "vrf-h1"
}
h2_create()
{
vrf_create "vrf-h2"
ip link set dev vrf-h2 up
ip link set dev $h2 up
vlan_create $h2 1 vrf-h2 198.51.100.2/24 2001:db8:2::2/64
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
vlan_destroy $h2 1
ip link set dev $h2 down
ip link set dev vrf-h2 down
vrf_destroy "vrf-h2"
}
router_create()
{
ip link set dev $rp1 up
ip link add link $rp1 name $rp1.1 up type vlan id 1
ip address add 192.0.2.1/24 dev $rp1.1
ip address add 2001:db8:1::1/64 dev $rp1.1
ip link set dev $rp2 up
ip link add link $rp2 name $rp2.1 up type vlan id 1
ip address add 198.51.100.1/24 dev $rp2.1
ip address add 2001:db8:2::1/64 dev $rp2.1
}
router_destroy()
{
ip address del 2001:db8:2::1/64 dev $rp2.1
ip address del 198.51.100.1/24 dev $rp2.1
ip link del dev $rp2.1
ip link set dev $rp2 down
ip address del 2001:db8:1::1/64 dev $rp1.1
ip address del 192.0.2.1/24 dev $rp1.1
ip link del dev $rp1.1
ip link set dev $rp1 down
}
setup_prepare()
{
h1=${NETIFS[p1]}
rp1=${NETIFS[p2]}
rp2=${NETIFS[p3]}
h2=${NETIFS[p4]}
vrf_prepare
h1_create
h2_create
router_create
forwarding_enable
}
cleanup()
{
pre_cleanup
forwarding_restore
router_destroy
h2_destroy
h1_destroy
vrf_cleanup
}
ping_ipv4()
{
ping_test $h1.1 198.51.100.2
}
ping_ipv6()
{
ping6_test $h1.1 2001:db8:2::2
}
trap cleanup EXIT
setup_prepare
setup_wait
tests_run
exit $EXIT_STATUS