From: Jakub Sitnicki <jakub@cloudflare.com>
To: John Fastabend <john.fastabend@gmail.com>
Cc: yhs@fb.com, andrii.nakryiko@gmail.com, ast@kernel.org,
daniel@iogearbox.net, netdev@vger.kernel.org,
bpf@vger.kernel.org, lmb@cloudflare.com
Subject: Re: [bpf-next PATCH v4 4/5] bpf: selftests, add sk_msg helpers load and attach test
Date: Fri, 22 May 2020 11:20:28 +0200 [thread overview]
Message-ID: <20200522112028.42f56c1f@toad> (raw)
In-Reply-To: <159012150674.14791.15054968668193084791.stgit@john-Precision-5820-Tower>
On Thu, 21 May 2020 21:25:06 -0700
John Fastabend <john.fastabend@gmail.com> wrote:
> The test itself is not particularly useful but it encodes a common
> pattern we have.
>
> Namely do a sk storage lookup then depending on data here decide if
> we need to do more work or alternatively allow packet to PASS. Then
> if we need to do more work consult task_struct for more information
> about the running task. Finally based on this additional information
> drop or pass the data. In this case the suspicious check is not so
> realisitic but it encodes the general pattern and uses the helpers
> so we test the workflow.
>
> This is a load test to ensure verifier correctly handles this case.
>
> Signed-off-by: John Fastabend <john.fastabend@gmail.com>
> ---
Oh, that kind of "load test" :-)
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
next prev parent reply other threads:[~2020-05-22 9:20 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-22 4:23 [bpf-next PATCH v4 0/5] bpf: Add sk_msg and networking helpers John Fastabend
2020-05-22 4:24 ` [bpf-next PATCH v4 1/5] bpf: sk_msg add some generic helpers that may be useful from sk_msg John Fastabend
2020-05-22 4:24 ` [bpf-next PATCH v4 2/5] bpf: extend bpf_base_func_proto helpers with probe_* and *current_task* John Fastabend
2020-05-22 23:03 ` Daniel Borkmann
2020-05-23 16:29 ` John Fastabend
2020-05-22 4:24 ` [bpf-next PATCH v4 3/5] bpf: sk_msg add get socket storage helpers John Fastabend
2020-05-22 4:25 ` [bpf-next PATCH v4 4/5] bpf: selftests, add sk_msg helpers load and attach test John Fastabend
2020-05-22 9:20 ` Jakub Sitnicki [this message]
2020-05-22 4:25 ` [bpf-next PATCH v4 5/5] bpf: selftests, test probe_* helpers from SCHED_CLS John Fastabend
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