linux-zen-server/tools/testing/selftests/drivers/net/bonding/bond-break-lacpdu-tx.sh

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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# Regression Test:
# Verify LACPDUs get transmitted after setting the MAC address of
# the bond.
#
# https://bugzilla.redhat.com/show_bug.cgi?id=2020773
#
# +---------+
# | fab-br0 |
# +---------+
# |
# +---------+
# | fbond |
# +---------+
# | |
# +------+ +------+
# |veth1 | |veth2 |
# +------+ +------+
#
# We use veths instead of physical interfaces
set -e
tmp=$(mktemp -q dump.XXXXXX)
cleanup() {
ip link del fab-br0 >/dev/null 2>&1 || :
ip link del fbond >/dev/null 2>&1 || :
ip link del veth1-bond >/dev/null 2>&1 || :
ip link del veth2-bond >/dev/null 2>&1 || :
modprobe -r bonding >/dev/null 2>&1 || :
rm -f -- ${tmp}
}
trap cleanup 0 1 2
cleanup
sleep 1
# create the bridge
ip link add fab-br0 address 52:54:00:3B:7C:A6 mtu 1500 type bridge \
forward_delay 15
# create the bond
ip link add fbond type bond mode 4 miimon 200 xmit_hash_policy 1 \
ad_actor_sys_prio 65535 lacp_rate fast
# set bond address
ip link set fbond address 52:54:00:3B:7C:A6
ip link set fbond up
# set again bond sysfs parameters
ip link set fbond type bond ad_actor_sys_prio 65535
# create veths
ip link add name veth1-bond type veth peer name veth1-end
ip link add name veth2-bond type veth peer name veth2-end
# add ports
ip link set fbond master fab-br0
ip link set veth1-bond down master fbond
ip link set veth2-bond down master fbond
# bring up
ip link set veth1-end up
ip link set veth2-end up
ip link set fab-br0 up
ip link set fbond up
ip addr add dev fab-br0 10.0.0.3
tcpdump -n -i veth1-end -e ether proto 0x8809 >${tmp} 2>&1 &
sleep 15
pkill tcpdump >/dev/null 2>&1
rc=0
num=$(grep "packets captured" ${tmp} | awk '{print $1}')
if test "$num" -gt 0; then
echo "PASS, captured ${num}"
else
echo "FAIL"
rc=1
fi
exit $rc