selftests: net: Add test_vxlan_fdb_changelink.sh

TEST_PROGS := run_netsocktests run_afpackettests test_bpf.sh netdevice.sh rtnetlink.sh

TEST_PROGS += fib_tests.sh fib-onlink-tests.sh pmtu.sh udpgso.sh ip_defrag.sh

TEST_PROGS += udpgso_bench.sh fib_rule_tests.sh msg_zerocopy.sh psock_snd.sh

TEST_PROGS += test_vxlan_fdb_changelink.sh

TEST_PROGS_EXTENDED := in_netns.sh

TEST_GEN_FILES =  socket

TEST_GEN_FILES += psock_fanout psock_tpacket msg_zerocopy

#!/bin/bash

# SPDX-License-Identifier: GPL-2.0

# Check FDB default-remote handling across "ip link set".

check_remotes()

{

	local what=$1; shift

	local N=$(bridge fdb sh dev vx | grep 00:00:00:00:00:00 | wc -l)

	echo -ne "expected two remotes after $what\t"

	if [[ $N != 2 ]]; then

		echo "[FAIL]"

		EXIT_STATUS=1

	else

		echo "[ OK ]"

	fi

}

ip link add name vx up type vxlan id 2000 dstport 4789

bridge fdb ap dev vx 00:00:00:00:00:00 dst 192.0.2.20 self permanent

bridge fdb ap dev vx 00:00:00:00:00:00 dst 192.0.2.30 self permanent

check_remotes "fdb append"

ip link set dev vx type vxlan remote 192.0.2.30

check_remotes "link set"

ip link del dev vx

exit $EXIT_STATUS