selftests: forwarding: Test mirror-to-vlan

#!/bin/bash

# SPDX-License-Identifier: GPL-2.0

# This test uses standard topology for testing mirroring. See mirror_topo_lib.sh

# for more details.

#

# Test for "tc action mirred egress mirror" that mirrors to a vlan device.

ALL_TESTS="

	test_vlan

	test_tagged_vlan

"

NUM_NETIFS=6

source lib.sh

source mirror_lib.sh

source mirror_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_topo_create

	vlan_create $swp3 555

	vlan_create $h3 555 v$h3

	matchall_sink_create $h3.555

	vlan_create $h1 111 v$h1 192.0.2.17/28

	bridge vlan add dev $swp1 vid 111

	vlan_create $h2 111 v$h2 192.0.2.18/28

	bridge vlan add dev $swp2 vid 111

}

cleanup()

{

	pre_cleanup

	vlan_destroy $h2 111

	vlan_destroy $h1 111

	vlan_destroy $h3 555

	vlan_destroy $swp3 555

	mirror_topo_destroy

	vrf_cleanup

}

test_vlan_dir()

{

	local direction=$1; shift

	local forward_type=$1; shift

	local backward_type=$1; shift

	RET=0

	mirror_install $swp1 $direction $swp3.555 "matchall $tcflags"

	test_span_dir "$h3.555" "$direction" "$forward_type" "$backward_type"

	mirror_uninstall $swp1 $direction

	log_test "$direction mirror to vlan ($tcflags)"

}

test_vlan()

{

	test_vlan_dir ingress 8 0

	test_vlan_dir egress 0 8

}

vlan_capture_add_del()

{

	local add_del=$1; shift

	local pref=$1; shift

	local dev=$1; shift

	local filter=$1; shift

	tc filter $add_del dev "$dev" ingress \

	   proto 802.1q pref $pref \

	   flower $filter \

	   action pass

}

vlan_capture_install()

{

	vlan_capture_add_del add 100 "$@"

}

vlan_capture_uninstall()

{

	vlan_capture_add_del del 100 "$@"

}

do_test_span_vlan_dir_ips()

{

	local expect=$1; shift

	local dev=$1; shift

	local vid=$1; shift

	local direction=$1; shift

	local ip1=$1; shift

	local ip2=$1; shift

	vlan_capture_install $dev "vlan_id $vid"

	mirror_test v$h1 $ip1 $ip2 $dev 100 $expect

	mirror_test v$h2 $ip2 $ip1 $dev 100 $expect

	vlan_capture_uninstall $dev

}

test_tagged_vlan_dir()

{

	local direction=$1; shift

	local forward_type=$1; shift

	local backward_type=$1; shift

	RET=0

	mirror_install $swp1 $direction $swp3.555 "matchall $tcflags"

	do_test_span_vlan_dir_ips 10 "$h3.555" 111 "$direction" \

				  192.0.2.17 192.0.2.18

	do_test_span_vlan_dir_ips  0 "$h3.555" 555 "$direction" \

				  192.0.2.17 192.0.2.18

	mirror_uninstall $swp1 $direction

	log_test "$direction mirror to vlan ($tcflags)"

}

test_tagged_vlan()

{

	test_tagged_vlan_dir ingress 8 0

	test_tagged_vlan_dir egress 0 8

}

test_all()

{

	slow_path_trap_install $swp1 ingress

	slow_path_trap_install $swp1 egress

	trap_install $h3 ingress

	tests_run

	trap_install $h3 ingress

	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