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Commit 0056042f authored by Petr Machata's avatar Petr Machata Committed by David S. Miller
Browse files

selftests: forwarding: Test mirror-to-gre w/ UL VLAN+802.1q



Test for "tc action mirred egress mirror" that mirrors to GRE when the
underlay route points at a vlan device on top of a bridge device with
vlan filtering (802.1q).

Signed-off-by: default avatarPetr Machata <petrm@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 35388a6a
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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 "tc action mirred egress mirror" when the underlay route points at a
# vlan device on top of a bridge device with vlan filtering (802.1q).

ALL_TESTS="
	test_gretap
	test_ip6gretap
	test_gretap_forbidden
	test_ip6gretap_forbidden
"

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

	vlan_create br1 555 "" 192.0.2.129/32 2001:db8:2::1/128
	bridge vlan add dev br1 vid 555 self
	ip route rep 192.0.2.130/32 dev br1.555
	ip -6 route rep 2001:db8:2::2/128 dev br1.555

	vlan_create $h3 555 v$h3 192.0.2.130/28 2001:db8:2::2/64

	ip link set dev $swp3 master br1
	bridge vlan add dev $swp3 vid 555
}

cleanup()
{
	pre_cleanup

	ip link set dev $swp3 nomaster
	vlan_destroy $h3 555
	vlan_destroy br1 555

	mirror_gre_topo_destroy
	vrf_cleanup
}

test_vlan_match()
{
	local tundev=$1; shift
	local vlan_match=$1; shift
	local what=$1; shift

	full_test_span_gre_dir_vlan $tundev ingress "$vlan_match" 8 0 "$what"
	full_test_span_gre_dir_vlan $tundev egress "$vlan_match" 0 8 "$what"
}

test_gretap()
{
	test_vlan_match gt4 'vlan_id 555 vlan_ethtype ip' "mirror to gretap"
}

test_ip6gretap()
{
	test_vlan_match gt6 'vlan_id 555 vlan_ethtype ipv6' "mirror to ip6gretap"
}

test_span_gre_forbidden()
{
	local tundev=$1; shift
	local what=$1; shift

	RET=0

	# Run the pass-test first, to prime neighbor table.
	mirror_install $swp1 ingress $tundev "matchall $tcflags"
	quick_test_span_gre_dir $tundev ingress

	# Now forbid the VLAN at the bridge and see it fail.
	bridge vlan del dev br1 vid 555 self
	sleep 1

	fail_test_span_gre_dir $tundev ingress
	mirror_uninstall $swp1 ingress

	bridge vlan add dev br1 vid 555 self
	sleep 1

	log_test "$what: vlan forbidden at a bridge ($tcflags)"
}

test_gretap_forbidden()
{
	test_span_gre_forbidden gt4 "mirror to gretap"
}

test_ip6gretap_forbidden()
{
	test_span_gre_forbidden gt4 "mirror to ip6gretap"
}

test_all()
{
	slow_path_trap_install $swp1 ingress
	slow_path_trap_install $swp1 egress

	tests_run

	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