netdev - Re: [PATCH bpf-next] selftests/bpf: Test sys

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Date:   Wed, 27 Jun 2018 11:28:32 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Andrey Ignatov <rdna@...com>, netdev@...r.kernel.org
Cc:     ast@...nel.org, kernel-team@...com
Subject: Re: [PATCH bpf-next] selftests/bpf: Test sys_connect BPF hooks with
 TFO

On 06/26/2018 11:22 PM, Andrey Ignatov wrote:
> TCP Fast Open is triggered by sys_sendmsg with MSG_FASTOPEN flag for
> SOCK_STREAM socket.
> 
> Even though it's sys_sendmsg, it eventually calls __inet_stream_connect
> the same way sys_connect does for TCP.  __inet_stream_connect, in turn,
> already has BPF hooks for sys_connect.
> 
> That means TFO is already covered by BPF_CGROUP_INET{4,6}_CONNECT and
> the only missing piece is selftest. The patch adds selftest for TFO.
> 
> Signed-off-by: Andrey Ignatov <rdna@...com>

Applied to bpf-next, thanks Andrey!