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Commit ba8d3987 authored by Petr Machata's avatar Petr Machata Committed by David S. Miller
Browse files

selftests: forwarding: Add test for mirror to gretap 



Add a test for basic mirroring to gretap and ip6gretap netdevices.

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 7d4cbae0

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

0 → 100755
+139 −0
Original line number Diff line number Diff line 
#!/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 device to mirror to is a

# gretap or ip6gretap netdevice. Expect that the packets come out encapsulated,

# and another gretap / ip6gretap netdevice is then capable of decapsulating the

# traffic. Test that the payload is what is expected (ICMP ping request or

# reply, depending on test).



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_mac()

{

	local tundev=$1; shift

	local direction=$1; shift

	local prot=$1; shift

	local what=$1; shift



	local swp3mac=$(mac_get $swp3)

	local h3mac=$(mac_get $h3)



	RET=0



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

	tc qdisc add dev $h3 clsact

	tc filter add dev $h3 ingress pref 77 prot $prot \

		flower ip_proto 0x2f src_mac $swp3mac dst_mac $h3mac \

		action pass



	mirror_test v$h1 192.0.2.1 192.0.2.2 $h3 77 10



	tc filter del dev $h3 ingress pref 77

	tc qdisc del dev $h3 clsact

	mirror_uninstall $swp1 $direction



	log_test "$direction $what: envelope MAC ($tcflags)"

}



test_two_spans()

{

	RET=0



	mirror_install $swp1 ingress gt4 "matchall $tcflags"

	mirror_install $swp1 egress gt6 "matchall $tcflags"

	quick_test_span_gre_dir gt4 ingress

	quick_test_span_gre_dir gt6 egress



	mirror_uninstall $swp1 ingress

	fail_test_span_gre_dir gt4 ingress

	quick_test_span_gre_dir gt6 egress



	mirror_install $swp1 ingress gt4 "matchall $tcflags"

	mirror_uninstall $swp1 egress

	quick_test_span_gre_dir gt4 ingress

	fail_test_span_gre_dir gt6 egress



	mirror_uninstall $swp1 ingress

	log_test "two simultaneously configured mirrors ($tcflags)"

}



test_all()

{

	slow_path_trap_install $swp1 ingress

	slow_path_trap_install $swp1 egress



	full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap"

	full_test_span_gre_dir gt6 ingress 8 0 "mirror to ip6gretap"

	full_test_span_gre_dir gt4 egress 0 8 "mirror to gretap"

	full_test_span_gre_dir gt6 egress 0 8 "mirror to ip6gretap"



	test_span_gre_mac gt4 ingress ip "mirror to gretap"

	test_span_gre_mac gt6 ingress ipv6 "mirror to ip6gretap"

	test_span_gre_mac gt4 egress ip "mirror to gretap"

	test_span_gre_mac gt6 egress ipv6 "mirror to ip6gretap"



	test_two_spans



	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