selftests: forwarding: test for bridge sticky flag

This test adds an fdb entry with the sticky flag and sends traffic from
a different port with the same mac as a source address expecting the entry
to not change ports if the flag is operating correctly.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/tools/testing/selftests/net/forwarding/bridge_sticky_fdb.sh b/tools/testing/selftests/net/forwarding/bridge_sticky_fdb.sh
new file mode 100755 (executable)
index 0000000..1f8ef0e
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_sticky_fdb.sh
@@ -0,0 +1,69 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="sticky"
+NUM_NETIFS=4
+TEST_MAC=de:ad:be:ef:13:37
+source lib.sh
+
+switch_create()
+{
+       ip link add dev br0 type bridge
+
+       ip link set dev $swp1 master br0
+       ip link set dev $swp2 master br0
+
+       ip link set dev br0 up
+       ip link set dev $h1 up
+       ip link set dev $swp1 up
+       ip link set dev $h2 up
+       ip link set dev $swp2 up
+}
+
+switch_destroy()
+{
+       ip link set dev $swp2 down
+       ip link set dev $h2 down
+       ip link set dev $swp1 down
+       ip link set dev $h1 down
+
+       ip link del dev br0
+}
+
+setup_prepare()
+{
+       h1=${NETIFS[p1]}
+       swp1=${NETIFS[p2]}
+       h2=${NETIFS[p3]}
+       swp2=${NETIFS[p4]}
+
+       switch_create
+}
+
+cleanup()
+{
+       pre_cleanup
+       switch_destroy
+}
+
+sticky()
+{
+       bridge fdb add $TEST_MAC dev $swp1 master static sticky
+       check_err $? "Could not add fdb entry"
+       bridge fdb del $TEST_MAC dev $swp1 vlan 1 master static sticky
+       $MZ $h2 -c 1 -a $TEST_MAC -t arp "request" -q
+       bridge -j fdb show br br0 brport $swp1\
+               | jq -e ".[] | select(.mac == \"$TEST_MAC\")" &> /dev/null
+       check_err $? "Did not find FDB record when should"
+
+       log_test "Sticky fdb entry"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS