[PATCH net-next 2/2] selftests: bridge_fdb_local_vlan_0: Test FDB vs. NET_ADDR_SET behavior
From: Petr Machata <petrm@nvidia.com>
Date: 2025-09-22 14:16:44
Also in:
bridge
Subsystem:
kernel selftest framework, networking [general], networking [ipv4/ipv6], the rest · Maintainers:
Shuah Khan, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, David Ahern, Ido Schimmel, Linus Torvalds
The previous patch fixed an issue whereby no FDB entry would be created for the bridge itself on VLAN 0 under some circumstances. This could break forwarding. Add a test for the fix. Signed-off-by: Petr Machata <petrm@nvidia.com> --- .../net/forwarding/bridge_fdb_local_vlan_0.sh | 28 ++++++++++++++++--- 1 file changed, 24 insertions(+), 4 deletions(-)
diff --git a/tools/testing/selftests/net/forwarding/bridge_fdb_local_vlan_0.sh b/tools/testing/selftests/net/forwarding/bridge_fdb_local_vlan_0.sh
index 5a0b43aff5aa..65f74c46c2f3 100755
--- a/tools/testing/selftests/net/forwarding/bridge_fdb_local_vlan_0.sh
+++ b/tools/testing/selftests/net/forwarding/bridge_fdb_local_vlan_0.sh@@ -27,6 +27,7 @@ ALL_TESTS=" test_d_sharing test_q_no_sharing test_q_sharing + test_addr_set " NUM_NETIFS=6
@@ -110,13 +111,10 @@ setup_prepare() switch_create } -adf_bridge_create() +adf_bridge_configure() { local dev - local mac - ip_link_add br up type bridge vlan_default_pvid 0 "$@" - mac=$(mac_get br) ip_addr_add br 192.0.2.3/28 ip_addr_add br 2001:db8:1::3/64
@@ -130,7 +128,15 @@ adf_bridge_create() bridge_vlan_add dev "$dev" vid 2 bridge_vlan_add dev "$dev" vid 3 done +} +adf_bridge_create() +{ + local mac + + ip_link_add br up type bridge vlan_default_pvid 0 "$@" + mac=$(mac_get br) + adf_bridge_configure ip_link_set_addr br "$mac" }
@@ -367,6 +373,20 @@ test_q_sharing() do_test_sharing 1 } +adf_addr_set_bridge_create() +{ + ip_link_add br up type bridge vlan_filtering 0 + ip_link_set_addr br "$(mac_get br)" + adf_bridge_configure +} + +test_addr_set() +{ + adf_addr_set_bridge_create + setup_wait + + do_end_to_end_test "$(mac_get br)" "NET_ADDR_SET: end to end, br MAC" +} trap cleanup EXIT
--
2.49.0