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 --- .../testing/selftests/net/forwarding/Makefile | 1 + .../net/forwarding/bridge_locked_port.sh | 174 ++++++++++++++++++ tools/testing/selftests/net/forwarding/lib.sh | 16 ++ 3 files changed, 191 insertions(+) create mode 100755 tools/testing/selftests/net/forwarding/bridge_locked_port.sh
diff --git a/tools/testing/selftests/net/forwarding/Makefile b/tools/testing/selftests/net/forwarding/Makefile index 72ee644d47bf..8fa97ae9af9e 100644 --- a/tools/testing/selftests/net/forwarding/Makefile +++ b/tools/testing/selftests/net/forwarding/Makefile @@ -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 \ diff --git a/tools/testing/selftests/net/forwarding/bridge_locked_port.sh b/tools/testing/selftests/net/forwarding/bridge_locked_port.sh new file mode 100755 index 000000000000..d2805441b325 --- /dev/null +++ b/tools/testing/selftests/net/forwarding/bridge_locked_port.sh @@ -0,0 +1,174 @@ +#!/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 192.0.3.1/24 2001:db8:3::1/64 +} + +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 192.0.3.2/24 2001:db8:3::2/64 +} + +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 +} + +ifaddr() +{ + ip -br link show dev "$1" | awk '{ print($3); }' +} + +locked_port_ipv4() +{ + RET=0 + + check_locked_port_support || return 0 + + ping_do $h1 192.0.2.2 + check_err $? "Ping didn't work when it should have" + + bridge link set dev $swp1 locked on + + ping_do $h1 192.0.2.2 + check_fail $? "Ping worked when it should not have" + + bridge fdb add `ifaddr $h1` dev $swp1 master static + + ping_do $h1 192.0.2.2 + check_err $? "Ping didn't work when it should have" + + bridge link set dev $swp1 locked off + bridge fdb del `ifaddr $h1` dev $swp1 master static + log_test "Locked port ipv4" +} + +locked_port_vlan() +{ + RET=0 + + check_locked_port_support || return 0 + check_vlan_filtering_support || return 0 + + bridge vlan add vid 100 dev $swp1 tagged + bridge vlan add vid 100 dev $swp2 tagged + + ping_do $h1.100 192.0.3.2 + check_err $? "Ping didn't work when it should have" + + bridge link set dev $swp1 locked on + ping_do $h1.100 192.0.3.2 + check_fail $? "Ping worked when it should not have" + + bridge fdb add `ifaddr $h1` dev $swp1 vlan 100 master static + + ping_do $h1.100 192.0.3.2 + check_err $? "Ping didn't work when it should have" + + bridge link set dev $swp1 locked off + bridge vlan del vid 100 dev $swp1 + bridge vlan del vid 100 dev $swp2 + bridge fdb del `ifaddr $h1` dev $swp1 vlan 100 master static + 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 didn't work when it should have" + + bridge link set dev $swp1 locked on + + ping6_do $h1 2001:db8:1::2 + check_fail $? "Ping worked when it should not have" + + bridge fdb add `ifaddr $h1` dev $swp1 master static + ping6_do $h1 2001:db8:1::2 + check_err $? "Ping didn't work when it should have" + + bridge link set dev $swp1 locked off + bridge fdb del `ifaddr $h1` dev $swp1 master static + log_test "Locked port ipv6" +} + +trap cleanup EXIT + +setup_prepare +setup_wait + +tests_run + +exit $EXIT_STATUS diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh index 7da783d6f453..9ded90f17ead 100644 --- a/tools/testing/selftests/net/forwarding/lib.sh +++ b/tools/testing/selftests/net/forwarding/lib.sh @@ -125,6 +125,22 @@ 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 +} + +check_vlan_filtering_support() +{ + if ! bridge -d vlan show | grep -q "state forwarding"; then + echo "SKIP: vlan filtering not supported." + return $ksft_skip + fi +} + if [[ "$(id -u)" -ne 0 ]]; then echo "SKIP: need root privileges" exit $ksft_skip