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Date: Thu, 3 Mar 2022 17:28:54 +0100
From: Florian Westphal <fw@strlen.de>
To: Mat Martineau <mathew.j.martineau@linux.intel.com>
Cc: Florian Westphal <fw@strlen.de>, mptcp@lists.linux.dev
Subject: Re: [PATCH mptcp 5/4] mptcp: handle join requests early
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Mat Martineau <mathew.j.martineau@linux.intel.com> wrote:
> > This means subflow to TCP-only listener will fail to establish, but that
> > could be resolved by having a 'reserve the port' approach (mptcpd?) in
> > the tooling that adds the required netlink commands.
> > 
> 
> I'm not sure what this would look like? Seems like a bit of kernel work in
> itself. Not sure if you want to explain here on this list or cover it in the
> meeting.

I meant something really crude^W simple, i.e. socket+bind before telling kernel
that we can receive subflows on x:y.