Re: [PATCH net-next v4 1/3] Add a helper function to get socket cookie in eBPF

On Sun, Mar 19, 2017 at 05:08:42PM -0700, Chenbo Feng wrote:

From: Chenbo Feng <redacted>

Retrieve the socket cookie generated by sock_gen_cookie() from a sk_buff
with a known socket. Generates a new cookie if one was not yet set.If
the socket pointer inside sk_buff is NULL, 0 is returned. The helper
function coud be useful in monitoring per socket networking traffic
statistics and provide a unique socket identifier per namespace.

Signed-off-by: Chenbo Feng <redacted>

Acked-by: Alexei Starovoitov <ast@kernel.org>