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selftests: forwarding: Test neighbor updates when mirroring to gretap

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

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Petr Machata 2018-04-27 01:21:23 +02:00 committed by David S. Miller
parent 16608bfe39
commit ff68e6fb04
1 changed files with 101 additions and 0 deletions
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101
tools/testing/selftests/net/forwarding/mirror_gre_neigh.sh Executable file
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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