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Make sure only sockopt programs can be attached to the setsockopt
and getsockopt hooks.
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20240426231621.2716876-4-sdf@google.com

Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>