selftests: forwarding: tests of locked port feature

These tests check that the basic locked port feature works, so that
no 'host' can communicate (ping) through a locked port unless the
MAC address of the 'host' interface is in the forwarding database of
the bridge.

Signed-off-by: Hans Schultz <schultz.hans+netdev@gmail.com>
Acked-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hans Schultz 2022-02-23 11:16:50 +01:00 committed by David S. Miller
parent 34ea415f92
commit b2b681a412
3 changed files with 189 additions and 0 deletions

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@ -1,6 +1,7 @@
# SPDX-License-Identifier: GPL-2.0+ OR MIT
TEST_PROGS = bridge_igmp.sh \
bridge_locked_port.sh \
bridge_port_isolation.sh \
bridge_sticky_fdb.sh \
bridge_vlan_aware.sh \

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@ -0,0 +1,180 @@
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
ALL_TESTS="locked_port_ipv4 locked_port_ipv6 locked_port_vlan"
NUM_NETIFS=4
CHECK_TC="no"
source lib.sh
h1_create()
{
simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
vrf_create "vrf-vlan-h1"
ip link set dev vrf-vlan-h1 up
vlan_create $h1 100 vrf-vlan-h1 198.51.100.1/24
}
h1_destroy()
{
vlan_destroy $h1 100
simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
}
h2_create()
{
simple_if_init $h2 192.0.2.2/24 2001:db8:1::2/64
vrf_create "vrf-vlan-h2"
ip link set dev vrf-vlan-h2 up
vlan_create $h2 100 vrf-vlan-h2 198.51.100.2/24
}
h2_destroy()
{
vlan_destroy $h2 100
simple_if_fini $h2 192.0.2.2/24 2001:db8:1::2/64
}
switch_create()
{
ip link add dev br0 type bridge vlan_filtering 1
ip link set dev $swp1 master br0
ip link set dev $swp2 master br0
ip link set dev br0 up
ip link set dev $swp1 up
ip link set dev $swp2 up
bridge link set dev $swp1 learning off
}
switch_destroy()
{
ip link set dev $swp2 down
ip link set dev $swp1 down
ip link del dev br0
}
setup_prepare()
{
h1=${NETIFS[p1]}
swp1=${NETIFS[p2]}
swp2=${NETIFS[p3]}
h2=${NETIFS[p4]}
vrf_prepare
h1_create
h2_create
switch_create
}
cleanup()
{
pre_cleanup
switch_destroy
h2_destroy
h1_destroy
vrf_cleanup
}
locked_port_ipv4()
{
RET=0
check_locked_port_support || return 0
ping_do $h1 192.0.2.2
check_err $? "Ping did not work before locking port"
bridge link set dev $swp1 locked on
ping_do $h1 192.0.2.2
check_fail $? "Ping worked after locking port, but before adding FDB entry"
bridge fdb add `mac_get $h1` dev $swp1 master static
ping_do $h1 192.0.2.2
check_err $? "Ping did not work after locking port and adding FDB entry"
bridge link set dev $swp1 locked off
bridge fdb del `mac_get $h1` dev $swp1 master static
ping_do $h1 192.0.2.2
check_err $? "Ping did not work after unlocking port and removing FDB entry."
log_test "Locked port ipv4"
}
locked_port_vlan()
{
RET=0
check_locked_port_support || return 0
bridge vlan add vid 100 dev $swp1
bridge vlan add vid 100 dev $swp2
ping_do $h1.100 198.51.100.2
check_err $? "Ping through vlan did not work before locking port"
bridge link set dev $swp1 locked on
ping_do $h1.100 198.51.100.2
check_fail $? "Ping through vlan worked after locking port, but before adding FDB entry"
bridge fdb add `mac_get $h1` dev $swp1 vlan 100 master static
ping_do $h1.100 198.51.100.2
check_err $? "Ping through vlan did not work after locking port and adding FDB entry"
bridge link set dev $swp1 locked off
bridge fdb del `mac_get $h1` dev $swp1 vlan 100 master static
ping_do $h1.100 198.51.100.2
check_err $? "Ping through vlan did not work after unlocking port and removing FDB entry"
bridge vlan del vid 100 dev $swp1
bridge vlan del vid 100 dev $swp2
log_test "Locked port vlan"
}
locked_port_ipv6()
{
RET=0
check_locked_port_support || return 0
ping6_do $h1 2001:db8:1::2
check_err $? "Ping6 did not work before locking port"
bridge link set dev $swp1 locked on
ping6_do $h1 2001:db8:1::2
check_fail $? "Ping6 worked after locking port, but before adding FDB entry"
bridge fdb add `mac_get $h1` dev $swp1 master static
ping6_do $h1 2001:db8:1::2
check_err $? "Ping6 did not work after locking port and adding FDB entry"
bridge link set dev $swp1 locked off
bridge fdb del `mac_get $h1` dev $swp1 master static
ping6_do $h1 2001:db8:1::2
check_err $? "Ping6 did not work after unlocking port and removing FDB entry"
log_test "Locked port ipv6"
}
trap cleanup EXIT
setup_prepare
setup_wait
tests_run
exit $EXIT_STATUS

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@ -126,6 +126,14 @@ check_ethtool_lanes_support()
fi
}
check_locked_port_support()
{
if ! bridge -d link show | grep -q " locked"; then
echo "SKIP: iproute2 too old; Locked port feature not supported."
return $ksft_skip
fi
}
if [[ "$(id -u)" -ne 0 ]]; then
echo "SKIP: need root privileges"
exit $ksft_skip