Xu Liu 6cf1770d63 bpf: Allow bpf_get_netns_cookie in BPF_PROG_TYPE_SOCK_OPS
We'd like to be able to identify netns from sockops hooks to
accelerate local process communication form different netns.

Signed-off-by: Xu Liu <liuxu623@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20210818105820.91894-2-liuxu623@gmail.com
2021-08-19 00:30:01 +02:00
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