Re: strange Mac OSX RST behavior

From	Jason Baron <jbaron@akamai.com>
Newsgroups	linux.kernel
Subject	Re: strange Mac OSX RST behavior
Date	2016-07-01 20:40 +0200
Message-ID	<rQbw5-1BY-33@gated-at.bofh.it> (permalink)
References	<rQ8yd-8iZ-3@gated-at.bofh.it> <rQagG-WO-43@gated-at.bofh.it> <rQagG-WO-41@gated-at.bofh.it> <rQbcK-1vP-5@gated-at.bofh.it>
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On 07/01/2016 02:16 PM, One Thousand Gnomes wrote:
>> yes, we do in fact see a POLLRDHUP from the FIN in this case and
>> read of zero, but we still have more data to write to the socket, and
>> b/c the RST is dropped here, the socket stays in TIME_WAIT until
>> things eventually time out...
> 
> After the FIN when you send/retransmit your next segment do you then get
> a valid RST back from the Mac end?
> 
> Alan
> 

No, we only get the single RST after the FIN from the Mac side which
is dropped. I would have expected the RST from the Mac after the
retransmits, but we don't see any further transmits from the Mac.
And the linux socket stays in CLOSE-WAIT (i mistakingly said
TIME_WAIT above).

For reference, I put the packet exchange in my initial mail.

Thanks,

-Jason

Thread

strange Mac OSX RST behavior Jason Baron <jbaron@akamai.com> - 2016-07-01 17:30 +0200
  Re: strange Mac OSX RST behavior One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-07-01 18:10 +0200
  Re: strange Mac OSX RST behavior Jason Baron <jbaron@akamai.com> - 2016-07-01 19:20 +0200
    Re: strange Mac OSX RST behavior One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-07-01 20:20 +0200
      Re: strange Mac OSX RST behavior Jason Baron <jbaron@akamai.com> - 2016-07-01 20:40 +0200
  Re: strange Mac OSX RST behavior Rick Jones <rick.jones2@hpe.com> - 2016-07-01 19:20 +0200

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