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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
ALL_TESTS="loopback_test"
NUM_NETIFS=2
source tc_common.sh
source lib.sh
h1_create()
{
simple_if_init $h1 192.0.2.1/24
tc qdisc add dev $h1 clsact
}
h1_destroy()
{
tc qdisc del dev $h1 clsact
simple_if_fini $h1 192.0.2.1/24
}
h2_create()
{
simple_if_init $h2
}
h2_destroy()
{
simple_if_fini $h2
}
loopback_test()
{
RET=0
tc filter add dev $h1 ingress protocol arp pref 1 handle 101 flower \
skip_hw arp_op reply arp_tip 192.0.2.1 action drop
$MZ $h1 -c 1 -t arp -q
tc_check_packets "dev $h1 ingress" 101 1
check_fail $? "Matched on a filter without loopback setup"
ethtool -K $h1 loopback on
check_err $? "Failed to enable loopback"
setup_wait_dev $h1
$MZ $h1 -c 1 -t arp -q
tc_check_packets "dev $h1 ingress" 101 1
check_err $? "Did not match on filter with loopback"
ethtool -K $h1 loopback off
check_err $? "Failed to disable loopback"
$MZ $h1 -c 1 -t arp -q
tc_check_packets "dev $h1 ingress" 101 2
check_fail $? "Matched on a filter after loopback was removed"
tc filter del dev $h1 ingress protocol arp pref 1 handle 101 flower
log_test "loopback"
}
setup_prepare()
{
h1=${NETIFS[p1]}
h2=${NETIFS[p2]}
vrf_prepare
h1_create
h2_create
}
cleanup()
{
pre_cleanup
h2_destroy
h1_destroy
vrf_cleanup
}
trap cleanup EXIT
setup_prepare
setup_wait
tests_run
exit $EXIT_STATUS
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