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Commit 7e1046fd authored by Petr Machata's avatar Petr Machata Committed by David S. Miller
Browse files

selftests: mlxsw: Test veto of unsupported VXLAN FDBs 



mlxsw doesn't implement offloading of all types of FDB entries that the
VXLAN driver supports. Test that such FDB entries are rejected. That
makes sure that the decision made by the existing validation code in
mlxsw propagates up the stack. It also exercises rollback functionality
in VXLAN, and tests that extack is returned.

Signed-off-by: default avatarPetr Machata <petrm@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a40313d9

tools/testing/selftests/drivers/net/mlxsw/vxlan_fdb_veto.sh

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#!/bin/bash

# SPDX-License-Identifier: GPL-2.0

#

# Test vetoing of FDB entries that mlxsw can not offload. This exercises several

# different veto vectors to test various rollback scenarios in the vxlan driver.



lib_dir=$(dirname $0)/../../../net/forwarding



ALL_TESTS="

	fdb_create_veto_test

	fdb_replace_veto_test

	fdb_append_veto_test

	fdb_changelink_veto_test

"

NUM_NETIFS=2

source $lib_dir/lib.sh



setup_prepare()

{

	swp1=${NETIFS[p1]}

	swp2=${NETIFS[p2]}



	ip link add dev br0 type bridge mcast_snooping 0



	ip link set dev $swp1 up

	ip link set dev $swp1 master br0

	ip link set dev $swp2 up



	ip link add name vxlan0 up type vxlan id 10 nolearning noudpcsum \

		ttl 20 tos inherit local 198.51.100.1 dstport 4789

	ip link set dev vxlan0 master br0

}



cleanup()

{

	pre_cleanup



	ip link set dev vxlan0 nomaster

	ip link del dev vxlan0



	ip link set dev $swp2 down

	ip link set dev $swp1 nomaster

	ip link set dev $swp1 down



	ip link del dev br0

}



fdb_create_veto_test()

{

	RET=0



	bridge fdb add 01:02:03:04:05:06 dev vxlan0 self static \

	       dst 198.51.100.2 2>/dev/null

	check_fail $? "multicast MAC not rejected"



	bridge fdb add 01:02:03:04:05:06 dev vxlan0 self static \

	       dst 198.51.100.2 2>&1 >/dev/null | grep -q mlxsw_spectrum

	check_err $? "multicast MAC rejected without extack"



	log_test "vxlan FDB veto - create"

}



fdb_replace_veto_test()

{

	RET=0



	bridge fdb add 00:01:02:03:04:05 dev vxlan0 self static \

	       dst 198.51.100.2

	check_err $? "valid FDB rejected"



	bridge fdb replace 00:01:02:03:04:05 dev vxlan0 self static \

	       dst 198.51.100.2 port 1234 2>/dev/null

	check_fail $? "FDB with an explicit port not rejected"



	bridge fdb replace 00:01:02:03:04:05 dev vxlan0 self static \

	       dst 198.51.100.2 port 1234 2>&1 >/dev/null \

	    | grep -q mlxsw_spectrum

	check_err $? "FDB with an explicit port rejected without extack"



	log_test "vxlan FDB veto - replace"

}



fdb_append_veto_test()

{

	RET=0



	bridge fdb add 00:00:00:00:00:00 dev vxlan0 self static \

	       dst 198.51.100.2

	check_err $? "valid FDB rejected"



	bridge fdb append 00:00:00:00:00:00 dev vxlan0 self static \

	       dst 198.51.100.3 port 1234 2>/dev/null

	check_fail $? "FDB with an explicit port not rejected"



	bridge fdb append 00:00:00:00:00:00 dev vxlan0 self static \

	       dst 198.51.100.3 port 1234 2>&1 >/dev/null \

	    | grep -q mlxsw_spectrum

	check_err $? "FDB with an explicit port rejected without extack"



	log_test "vxlan FDB veto - append"

}



fdb_changelink_veto_test()

{

	RET=0



	ip link set dev vxlan0 type vxlan \

	   group 224.0.0.1 dev lo 2>/dev/null

	check_fail $? "FDB with a multicast IP not rejected"



	ip link set dev vxlan0 type vxlan \

	   group 224.0.0.1 dev lo 2>&1 >/dev/null \

	    | grep -q mlxsw_spectrum

	check_err $? "FDB with a multicast IP rejected without extack"



	log_test "vxlan FDB veto - changelink"

}



trap cleanup EXIT



setup_prepare

setup_wait



tests_run



exit $EXIT_STATUS