]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
selftests: forwarding: bridge_mdb_max: Fix failing test with old libnet
authorIdo Schimmel <idosch@nvidia.com>
Tue, 8 Aug 2023 14:15:02 +0000 (17:15 +0300)
committerJakub Kicinski <kuba@kernel.org>
Wed, 9 Aug 2023 21:53:36 +0000 (14:53 -0700)
commitcb034948ac292da82cc0e6bc1340f81be36e117d
tree1f5f4e8ec994431d4bc133ddaab453fb14cc7be6
parente98e195d90cc93b1bf2ad762c7c274a40dab7173
selftests: forwarding: bridge_mdb_max: Fix failing test with old libnet

As explained in commit 8bcfb4ae4d97 ("selftests: forwarding: Fix failing
tests with old libnet"), old versions of libnet (used by mausezahn) do
not use the "SO_BINDTODEVICE" socket option. For IP unicast packets,
this can be solved by prefixing mausezahn invocations with "ip vrf
exec". However, IP multicast packets do not perform routing and simply
egress the bound device, which does not exist in this case.

Fix by specifying the source and destination MAC of the packet which
will cause mausezahn to use a packet socket instead of an IP socket.

Fixes: 3446dcd7df05 ("selftests: forwarding: bridge_mdb_max: Add a new selftest")
Reported-by: Mirsad Todorovac <mirsad.todorovac@alu.unizg.hr>
Closes: https://lore.kernel.org/netdev/adc5e40d-d040-a65e-eb26-edf47dac5b02@alu.unizg.hr/
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Mirsad Todorovac <mirsad.todorovac@alu.unizg.hr>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://lore.kernel.org/r/20230808141503.4060661-17-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
tools/testing/selftests/net/forwarding/bridge_mdb_max.sh