cvs commit: src/sys/netinet in_pcb.c tcp_subr.c tcp_var.h

[Mike Silbersack]

silby       2003/10/31 23:30:08 PST

  FreeBSD src repository

  Modified files:
    sys/netinet          in_pcb.c tcp_subr.c tcp_var.h 
  Log:
  - Add a new function tcp_twrecycleable, which tells us if the ISN which
  we will generate for a given ip/port tuple has advanced far enough
  for the time_wait socket in question to be safely recycled.
  
  - Have in_pcblookup_local use tcp_twrecycleable to determine if
  time_Wait sockets which are hogging local ports can be safely
  freed.
  
  This change preserves proper TIME_WAIT behavior under normal
  circumstances while allowing for safe and fast recycling whenever
  ephemeral port space is scarce.
  
  Revision  Changes    Path
  1.125     +12 -0     src/sys/netinet/in_pcb.c
  1.165     +19 -0     src/sys/netinet/tcp_subr.c
  1.91      +2 -0      src/sys/netinet/tcp_var.h