[lwip-devel] [bug #22020] tcp_bind() for listen connection fails when connection on this port is active

[Simon Goldschmidt]

URL:
  <http://savannah.nongnu.org/bugs/?22020>

                 Summary: tcp_bind() for listen connection fails when
connection on this port is active
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: goldsimon
            Submitted on: Montag 14.01.2008 um 14:58
                Category: TCP
                Severity: 3 - Normal
              Item Group: Faulty Behaviour
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: 

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Details:

This was discussed on lwip-users:
http://lists.nongnu.org/archive/html/lwip-users/2008-01/msg00034.html

To summarize the report of lwip_users:
- create listen pcb
- accept connection
- close listen pcb
- process connection
- close connection
- create new listen pcb
  -> fails since tcp_bind() fails: the port is still used since the previous
connection is still in a wait state

Question: is this behaviour correct or should a listen pcb be allowed when a
connection is active (or in a wait state) on this port? Having a quick look
over the tcp rfc, I didn't find an answer to this question...




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