Commit e0f3b3e5 authored by Dong Chenchen's avatar Dong Chenchen Committed by Jakub Kicinski
Browse files

selftests: Add test cases for vlan_filter modification during runtime 



Add test cases for vlan_filter modification during runtime, which
may triger null-ptr-ref or memory leak of vlan0.

Signed-off-by: default avatarDong Chenchen <dongchenchen2@huawei.com>
Link: https://patch.msgid.link/20250716034504.2285203-3-dongchenchen2@huawei.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 579d4f9c

tools/testing/selftests/net/vlan_hw_filter.sh

+86 −12
Original line number Diff line number Diff line
@@ -3,10 +3,22 @@ 


readonly NETNS="ns-$(mktemp -u XXXXXX)"



ALL_TESTS="

	test_vlan_filter_check

	test_vlan0_del_crash_01

	test_vlan0_del_crash_02

	test_vlan0_del_crash_03

	test_vid0_memleak

"



ret=0



setup() {

	ip netns add ${NETNS}

}



cleanup() {

	ip netns del $NETNS

	ip netns del $NETNS 2>/dev/null

}



trap cleanup EXIT
@@ -16,7 +28,16 @@ fail() { 
	ret=1

}



ip netns add ${NETNS}

tests_run()

{

	local current_test

	for current_test in ${TESTS:-$ALL_TESTS}; do

		$current_test

	done

}



test_vlan_filter_check() {

	setup

	ip netns exec ${NETNS} ip link add bond0 type bond mode 0

	ip netns exec ${NETNS} ip link add bond_slave_1 type veth peer veth2

	ip netns exec ${NETNS} ip link set bond_slave_1 master bond0
@@ -25,5 +46,58 @@ ip netns exec ${NETNS} ip link add link bond_slave_1 name bond_slave_1.0 type vl 
	ip netns exec ${NETNS} ip link add link bond0 name bond0.0 type vlan id 0

	ip netns exec ${NETNS} ip link set bond_slave_1 nomaster

	ip netns exec ${NETNS} ip link del veth2 || fail "Please check vlan HW filter function"

	cleanup

}



#enable vlan_filter feature of real_dev with vlan0 during running time

test_vlan0_del_crash_01() {

	setup

	ip netns exec ${NETNS} ip link add bond0 type bond mode 0

	ip netns exec ${NETNS} ip link add link bond0 name vlan0 type vlan id 0 protocol 802.1q

	ip netns exec ${NETNS} ethtool -K bond0 rx-vlan-filter off

	ip netns exec ${NETNS} ifconfig bond0 up

	ip netns exec ${NETNS} ethtool -K bond0 rx-vlan-filter on

	ip netns exec ${NETNS} ifconfig bond0 down

	ip netns exec ${NETNS} ifconfig bond0 up

	ip netns exec ${NETNS} ip link del vlan0 || fail "Please check vlan HW filter function"

	cleanup

}



#enable vlan_filter feature and add vlan0 for real_dev during running time

test_vlan0_del_crash_02() {

	setup

	ip netns exec ${NETNS} ip link add bond0 type bond mode 0

	ip netns exec ${NETNS} ethtool -K bond0 rx-vlan-filter off

	ip netns exec ${NETNS} ifconfig bond0 up

	ip netns exec ${NETNS} ethtool -K bond0 rx-vlan-filter on

	ip netns exec ${NETNS} ip link add link bond0 name vlan0 type vlan id 0 protocol 802.1q

	ip netns exec ${NETNS} ifconfig bond0 down

	ip netns exec ${NETNS} ifconfig bond0 up

	ip netns exec ${NETNS} ip link del vlan0 || fail "Please check vlan HW filter function"

	cleanup

}



#enable vlan_filter feature of real_dev during running time

#test kernel_bug of vlan unregister

test_vlan0_del_crash_03() {

	setup

	ip netns exec ${NETNS} ip link add bond0 type bond mode 0

	ip netns exec ${NETNS} ip link add link bond0 name vlan0 type vlan id 0 protocol 802.1q

	ip netns exec ${NETNS} ethtool -K bond0 rx-vlan-filter off

	ip netns exec ${NETNS} ifconfig bond0 up

	ip netns exec ${NETNS} ethtool -K bond0 rx-vlan-filter on

	ip netns exec ${NETNS} ifconfig bond0 down

	ip netns exec ${NETNS} ip link del vlan0 || fail "Please check vlan HW filter function"

	cleanup

}



test_vid0_memleak() {

	setup

	ip netns exec ${NETNS} ip link add bond0 up type bond mode 0

	ip netns exec ${NETNS} ethtool -K bond0 rx-vlan-filter off

	ip netns exec ${NETNS} ip link del dev bond0 || fail "Please check vlan HW filter function"

	cleanup

}



tests_run

exit $ret