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>

diff --git a/tools/testing/selftests/net/forwarding/Makefile b/tools/testing/selftests/net/forwarding/Makefile
index 72ee644..8fa97ae 100644 (file)
--- 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 (executable)
index 0000000..6e98efa
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_locked_port.sh
@@ -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

diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh
index e7e434a..159afc7 100644 (file)
--- a/tools/testing/selftests/net/forwarding/lib.sh
+++ b/tools/testing/selftests/net/forwarding/lib.sh
@@ -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