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[lwip-devel] [bug #28225] 2nd tcp_connect error after close of pcb


From: Oleg Tyshev
Subject: [lwip-devel] [bug #28225] 2nd tcp_connect error after close of pcb
Date: Tue, 08 Dec 2009 10:51:33 +0000
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5 GTB5

URL:
  <http://savannah.nongnu.org/bugs/?28225>

                 Summary: 2nd tcp_connect error after close of pcb
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: olegreen
            Submitted on: Tue 08 Dec 2009 10:51:32 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

    _______________________________________________________

Details:

This error appeared after

bug #27904: TCP sends too many ACKs: delay resetting tcp_input_pcb until
after calling the pcb's callbacks

tcp_input_pcb is not always NULL on the exit of tcp_input().
As result, if connection closed, tcp_input_pcb is not NULL,
tcp_connect() allocates the same pcb and can't send SYN.

Applied patch fixes this problem.



    _______________________________________________________

File Attachments:


-------------------------------------------------------
Date: Tue 08 Dec 2009 10:51:32 AM GMT  Name: tcp_input.patch  Size: 680B  
By: olegreen

<http://savannah.nongnu.org/bugs/download.php?file_id=19220>

    _______________________________________________________

Reply to this item at:

  <http://savannah.nongnu.org/bugs/?28225>

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