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From: John Baldwin <jhb@FreeBSD.org>
Date: Wed, 30 Mar 2011 12:35:39 +0000 (UTC)
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Subject: cvs commit: src/sys/netinet tcp_input.c
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jhb         2011-03-30 12:35:39 UTC

  FreeBSD src repository

  Modified files:
    sys/netinet          tcp_input.c 
  Log:
  SVN rev 220156 on 2011-03-30 12:35:39Z by jhb
  
  Clamp the initial advertised receive window when responding to a SYN/ACK
  to the maximum allowed window.  Growing the window too large would cause
  an underflow in the calculations in tcp_output() to decide if a window
  update should be sent which would prevent the persist timer from being
  started if data was pending and the other end of the connection advertised
  an initial window size of 0.
  
  PR:             kern/154006
  Submitted by:   Stefan `Sec` Zehl  sec 42 org
  Reviewed by:    bz
  MFC after:      1 week
  
  Revision  Changes    Path
  1.425     +2 -1      src/sys/netinet/tcp_input.c