From: Sabrina Dubroca <sd@queasysnail.net>
To: Antonio Quartulli <antonio@openvpn.net>
Cc: Michael Bommarito <michael.bommarito@gmail.com>,
Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH net] net: ovpn: refuse TCP socket layering with an active ULP
Date: Wed, 20 May 2026 11:16:58 +0200 [thread overview]
Message-ID: <ag18CrUI1OIm78o0@krikkit> (raw)
In-Reply-To: <2932f619-81a0-4c26-8adf-7a7d0256a137@openvpn.net>
2026-05-20, 09:22:01 +0200, Antonio Quartulli wrote:
> Hi Sabrina,
>
> On 19/05/2026 16:32, Sabrina Dubroca wrote:
> > mptcp calls tcp_set_ulp() from the setup, maybe ovpn can also do
> > that. detach() may be an issue.
>
> What is your exact concern with detach()? if we prevent other protocols from
> stacking, what is there to deal with in detach()?
IIRC, ULP doesn't have a concept of "detach" (without close). So if
you want to detach and then reattach the same socket, I think the ULP
infra will need some work.
--
Sabrina
prev parent reply other threads:[~2026-05-20 9:17 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-17 15:56 [PATCH net] net: ovpn: refuse TCP socket layering with an active ULP Michael Bommarito
2026-05-19 14:32 ` Sabrina Dubroca
2026-05-19 14:37 ` Antonio Quartulli
2026-05-19 15:02 ` Michael Bommarito
2026-05-20 7:22 ` Antonio Quartulli
2026-05-20 9:16 ` Sabrina Dubroca [this message]
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