netdev - Re: [PATCH net-next 3/3] net/tcp-fastopen: Add new API support

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Date:   Wed, 25 Jan 2017 11:30:06 -0800
From:   Wei Wang <tracywwnj@...il.com>
To:     David Miller <davem@...emloft.net>
Cc:     Willy Tarreau <w@....eu>, Eric Dumazet <eric.dumazet@...il.com>,
        Linux Kernel Network Developers <netdev@...r.kernel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Yuchung Cheng <ycheng@...gle.com>, Wei Wang <weiwan@...gle.com>
Subject: Re: [PATCH net-next 3/3] net/tcp-fastopen: Add new API support

> Note that I am not sure we correctly test that a second connect() can be
> done, and I am not sure kernel would check that the remote IP and
> destination port is the same.

> Ie what should happen for

> setsockopt(fd, SOL_TCP, TCP_FASTOPEN_CONNECT, &on, 4)
> connect(fd,  "1.2.3.4:80")
> connect(fd, "55.66.77.88:4000")

I wrote a simple code to test this scenario and the second connect()
returns EISCONN as well even though the destination IP is different.

On Wed, Jan 25, 2017 at 11:03 AM, David Miller <davem@...emloft.net> wrote:
> From: Wei Wang <tracywwnj@...il.com>
> Date: Wed, 25 Jan 2017 10:54:50 -0800
>
>>> Yes sorry David, for me it's OK. If Wei runs his whole series of tests
>>> on it again, it should be perfect.
>>
>> I just ran all the TFO related tests with Willy's patch on top of this
>> patch series.
>> And everything passes.
>
> Great, I'll apply everything, thanks.