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selftests: Add test cases for vlan_filter modification during runtime

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

Signed-off-by: Dong Chenchen <dongchenchen2@huawei.com>
Link: https://patch.msgid.link/20250716034504.2285203-3-dongchenchen2@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Dong Chenchen 2025-07-16 11:45:04 +08:00 committed by Jakub Kicinski
parent 579d4f9ca9
commit e0f3b3e5c7
1 changed files with 86 additions and 12 deletions
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98
tools/testing/selftests/net/vlan_hw_filter.sh
View File

@ -3,27 +3,101 @@
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
fail() {
echo "ERROR: ${1:-unexpected return code} (ret: $_)" >&2
ret=1
echo "ERROR: ${1:-unexpected return code} (ret: $_)" >&2
ret=1
}
ip netns add ${NETNS}
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
ip netns exec ${NETNS} ethtool -K bond0 rx-vlan-filter off
ip netns exec ${NETNS} ip link add link bond_slave_1 name bond_slave_1.0 type vlan id 0
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"
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
ip netns exec ${NETNS} ethtool -K bond0 rx-vlan-filter off
ip netns exec ${NETNS} ip link add link bond_slave_1 name bond_slave_1.0 type vlan id 0
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