selftests/bpf: Optionally select broadcasting flags

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Broadcasting flags are hardcoded for each kind for protocol.

Create a redirect_flags map that allows to select the broadcasting flags
to use in the bpf_redirect_map(). The protocol ID is used as a key.
Set the old hardcoded values as default if the map isn't filled by the
BPF caller.

Signed-off-by: Bastien Curutchet (eBPF Foundation) <bastien.curutchet@bootlin.com>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250212-redirect-multi-v5-3-fd0d39fca6e6@bootlin.com

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Bastien Curutchet (eBPF Foundation) 2025-02-12 12:11:11 +01:00 • committed by Martin KaFai Lau

parent 19a9484c1b

commit 09c8bb1fae

1 changed files with 29 additions and 12 deletions

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tools/testing/selftests/bpf/progs/xdp_redirect_multi_kern.c

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