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Commit ff68e6fb authored by Petr Machata's avatar Petr Machata Committed by David S. Miller
Browse files

selftests: forwarding: Test neighbor updates when mirroring to gretap 



Test that when a mirror to gretap or ip6gretap netdevice is configured,
changes to neighbors are reflected.

Signed-off-by: default avatarPetr Machata <petrm@mellanox.com>
Reviewed-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 16608bfe

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

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#!/bin/bash

# SPDX-License-Identifier: GPL-2.0



# This test uses standard topology for testing gretap. See

# mirror_gre_topo_lib.sh for more details.

#

# Test for mirroring to gretap and ip6gretap, such that the neighbor entry for

# the tunnel remote address has invalid address at the time that the mirroring

# is set up. Later on, the neighbor is deleted and it is expected to be

# reinitialized using the usual ARP process, and the mirroring offload updated.



NUM_NETIFS=6

source lib.sh

source mirror_lib.sh

source mirror_gre_lib.sh

source mirror_gre_topo_lib.sh



setup_prepare()

{

	h1=${NETIFS[p1]}

	swp1=${NETIFS[p2]}



	swp2=${NETIFS[p3]}

	h2=${NETIFS[p4]}



	swp3=${NETIFS[p5]}

	h3=${NETIFS[p6]}



	vrf_prepare

	mirror_gre_topo_create



	ip address add dev $swp3 192.0.2.129/28

	ip address add dev $h3 192.0.2.130/28



	ip address add dev $swp3 2001:db8:2::1/64

	ip address add dev $h3 2001:db8:2::2/64

}



cleanup()

{

	pre_cleanup



	ip address del dev $h3 2001:db8:2::2/64

	ip address del dev $swp3 2001:db8:2::1/64



	ip address del dev $h3 192.0.2.130/28

	ip address del dev $swp3 192.0.2.129/28



	mirror_gre_topo_destroy

	vrf_cleanup

}



test_span_gre_neigh()

{

	local addr=$1; shift

	local tundev=$1; shift

	local direction=$1; shift

	local what=$1; shift



	RET=0



	ip neigh replace dev $swp3 $addr lladdr 00:11:22:33:44:55

	mirror_install $swp1 $direction $tundev "matchall $tcflags"

	fail_test_span_gre_dir $tundev ingress

	ip neigh del dev $swp3 $addr

	quick_test_span_gre_dir $tundev ingress

	mirror_uninstall $swp1 $direction



	log_test "$direction $what: neighbor change ($tcflags)"

}



test_all()

{

	slow_path_trap_install $swp1 ingress

	slow_path_trap_install $swp1 egress



	test_span_gre_neigh 192.0.2.130 gt4 ingress "mirror to gretap"

	test_span_gre_neigh 192.0.2.130 gt4 egress "mirror to gretap"

	test_span_gre_neigh 2001:db8:2::2 gt6 ingress "mirror to ip6gretap"

	test_span_gre_neigh 2001:db8:2::2 gt6 egress "mirror to ip6gretap"



	slow_path_trap_uninstall $swp1 egress

	slow_path_trap_uninstall $swp1 ingress

}



trap cleanup EXIT



setup_prepare

setup_wait



tcflags="skip_hw"

test_all



if ! tc_offload_check; then

	echo "WARN: Could not test offloaded functionality"

else

	tcflags="skip_sw"

	test_all

fi



exit $EXIT_STATUS