selftests/bpf: Add AF_INET packet generation to xdp_metadata

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The easiest way to simulate stripped VLAN tag in veth is to send a packet
from VLAN interface, attached to veth. Unfortunately, this approach is
incompatible with AF_XDP on TX side, because VLAN interfaces do not have
such feature.

Check both packets sent via AF_XDP TX and regular socket.

AF_INET packet will also have a filled-in hash type (XDP_RSS_TYPE_L4),
unlike AF_XDP packet, so more values can be checked.

Signed-off-by: Larysa Zaremba <larysa.zaremba@intel.com>
Acked-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/r/20231205210847.28460-18-larysa.zaremba@intel.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Larysa Zaremba 2023-12-05 22:08:46 +01:00 • committed by Alexei Starovoitov

parent 8e68a4beba

commit a3850af4ea

1 changed files with 97 additions and 19 deletions

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tools/testing/selftests/bpf/prog_tests/xdp_metadata.c

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