cvs commit: src/sys/netinet tcp_syncache.c

[Ruslan Ermilov]

ru          2007-12-19 16:56:28 UTC

  FreeBSD src repository

  Modified files:
    sys/netinet          tcp_syncache.c 
  Log:
  Fix bugs in the TCP syncache timeout code. including:
  
  When system ticks are positive, for entries in the cache
  bucket, syncache_timer() ran on every tick (doing nothing
  useful) instead of the supposed 3, 6, 12, and 24 seconds
  later (when it's time to retransmit SYN,ACK).
  
  When ticks are negative, syncache_timer() was scheduled
  for the too far future (up to ~25 days on systems with
  HZ=1000), no SYN,ACK retransmits were attempted at all,
  and syncache entries added in that period that correspond
  to non-established connections stay there forever.
  
  Only HEAD and RELENG_7 are affected.
  
  Reviewed by:    silby, kmacy (earlier version)
  Submitted by:   Maxim Dounin, ru
  
  Revision  Changes    Path
  1.141     +18 -8     src/sys/netinet/tcp_syncache.c