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selftests: forwarding: Test gretap mirror with next-hop remote

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Test mirror to a gretap and an ip6gretap netdevice such that the remote
address of the tunnel is reachable through a next-hop route.

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 01:19:15 +02:00 committed by David S. Miller
parent ba8d39871a
commit 304f009cc3
1 changed files with 117 additions and 0 deletions
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117
tools/testing/selftests/net/forwarding/mirror_gre_nh.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 that gretap and ip6gretap mirroring works when the other tunnel endpoint
# is reachable through a next-hop route (as opposed to directly-attached route).
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 192.0.2.161/28
ip address add dev $h3 192.0.2.162/28
ip address add dev gt4 192.0.2.129/32
ip address add dev h3-gt4 192.0.2.130/32
# IPv6 route can't be added after address. Such routes are rejected due
# to the gateway address having been configured on the local system. It
# works the other way around though.
ip address add dev $swp3 2001:db8:4::1/64
ip -6 route add 2001:db8:2::2/128 via 2001:db8:4::2
ip address add dev $h3 2001:db8:4::2/64
ip address add dev gt6 2001:db8:2::1
ip address add dev h3-gt6 2001:db8:2::2
}
cleanup()
{
pre_cleanup
ip -6 route del 2001:db8:2::2/128 via 2001:db8:4::2
ip address del dev $h3 2001:db8:4::2/64
ip address del dev $swp3 2001:db8:4::1/64
ip address del dev $h3 192.0.2.162/28
ip address del dev $swp3 192.0.2.161/28
mirror_gre_topo_destroy
vrf_cleanup
}
test_gretap()
{
RET=0
mirror_install $swp1 ingress gt4 "matchall $tcflags"
# For IPv4, test that there's no mirroring without the route directing
# the traffic to tunnel remote address. Then add it and test that
# mirroring starts. For IPv6 we can't test this due to the limitation
# that routes for locally-specified IPv6 addresses can't be added.
fail_test_span_gre_dir gt4 ingress
ip route add 192.0.2.130/32 via 192.0.2.162
quick_test_span_gre_dir gt4 ingress
ip route del 192.0.2.130/32 via 192.0.2.162
mirror_uninstall $swp1 ingress
log_test "mirror to gre with next-hop remote ($tcflags)"
}
test_ip6gretap()
{
RET=0
mirror_install $swp1 ingress gt6 "matchall $tcflags"
quick_test_span_gre_dir gt6 ingress
mirror_uninstall $swp1 ingress
log_test "mirror to ip6gre with next-hop remote ($tcflags)"
}
test_all()
{
slow_path_trap_install $swp1 ingress
slow_path_trap_install $swp1 egress
test_gretap
test_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