netdev - Re: [PATCH net-next v4 2/2] selftests/net: Test tcp port reuse after unbinding a socket

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Message-ID: <CAAVpQUBLvvhPjbmGSnUk_Up10AowDEeY_bR=ecZFoSN5ef1Sfw@mail.gmail.com>
Date: Mon, 15 Sep 2025 22:50:38 -0700
From: Kuniyuki Iwashima <kuniyu@...gle.com>
To: Jakub Sitnicki <jakub@...udflare.com>
Cc: netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>, 
	Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, 
	Neal Cardwell <ncardwell@...gle.com>, Paolo Abeni <pabeni@...hat.com>, kernel-team@...udflare.com, 
	Lee Valentine <lvalentine@...udflare.com>
Subject: Re: [PATCH net-next v4 2/2] selftests/net: Test tcp port reuse after
 unbinding a socket

On Sat, Sep 13, 2025 at 3:09 AM Jakub Sitnicki <jakub@...udflare.com> wrote:
>
> Exercise the scenario described in detail in the cover letter:
>
>   1) socket A: connect() from ephemeral port X
>   2) socket B: explicitly bind() to port X
>   3) check that port X is now excluded from ephemeral ports
>   4) close socket B to release the port bind
>   5) socket C: connect() from ephemeral port X
>
> As well as a corner case to test that the connect-bind flag is cleared:
>
>   1) connect() from ephemeral port X
>   2) disconnect the socket with connect(AF_UNSPEC)
>   3) bind() it explicitly to port X
>   4) check that port X is now excluded from ephemeral ports
>
> Signed-off-by: Jakub Sitnicki <jakub@...udflare.com>

Reviewed-by: Kuniyuki Iwashima <kuniyu@...gle.com>

Thanks!