1# SPDX-License-Identifier: GPL-2.0
2
3mirror_install()
4{
5	local from_dev=$1; shift
6	local direction=$1; shift
7	local to_dev=$1; shift
8	local filter=$1; shift
9
10	tc filter add dev $from_dev $direction \
11	   pref 1000 $filter \
12	   action mirred egress mirror dev $to_dev
13}
14
15mirror_uninstall()
16{
17	local from_dev=$1; shift
18	local direction=$1; shift
19
20	tc filter del dev $swp1 $direction pref 1000
21}
22
23mirror_test()
24{
25	local vrf_name=$1; shift
26	local sip=$1; shift
27	local dip=$1; shift
28	local dev=$1; shift
29	local pref=$1; shift
30	local expect=$1; shift
31
32	local t0=$(tc_rule_stats_get $dev $pref)
33	ip vrf exec $vrf_name \
34	   ${PING} ${sip:+-I $sip} $dip -c 10 -i 0.1 -w 2 &> /dev/null
35	local t1=$(tc_rule_stats_get $dev $pref)
36	local delta=$((t1 - t0))
37	# Tolerate a couple stray extra packets.
38	((expect <= delta && delta <= expect + 2))
39	check_err $? "Expected to capture $expect packets, got $delta."
40}
41