[lwip-devel] [bug #27315] zero window probe and FIN

[Oleg Tyshev]

URL:
  <http://savannah.nongnu.org/bugs/?27315>

                 Summary: zero window probe and FIN
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: olegreen
            Submitted on: Tue 25 Aug 2009 11:48:03 AM GMT
                Category: TCP
                Severity: 3 - Normal
              Item Group: Faulty Behaviour
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: 
            lwIP version: CVS Head

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Details:

In function tcp_zero_window_probe()will be always taken one segment from
unacked or unsent queue.
>From this segment we take one byte to create zero-window probe.

Suppouse this segment has no data, only FIN flag.

In this case, instead of FIN packet would be sent  on byte of undefined data.




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