Re: [PATCH bpf-next v3 06/12] bpf, sockmap: Don't set up sockmap progs for listening sockets

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On Wed, Jan 22, 2020 at 02:05:43PM +0100, Jakub Sitnicki wrote:
> Now that sockmap can hold listening sockets, when setting up the psock we
> will (i) grab references to verdict/parser progs, and (2) override socket
> upcalls sk_data_ready and sk_write_space.
> 
> We cannot redirect to listening sockets so we don't need to link the socket
> to the BPF progs, but more importantly we don't want the listening socket
> to have overridden upcalls because they would get inherited by child
> sockets cloned from it.
> 
> Introduce a separate initialization path for listening sockets that does
> not change the upcalls and ignores the BPF progs.
The change makes sense to me.

Acked-by: Martin KaFai Lau <kafai@xxxxxx>




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