From owner-cvs-all  Fri Feb 23 12:51:53 2001
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From: Jonathan Lemon <jlemon@FreeBSD.org>
Date: Fri, 23 Feb 2001 12:51:47 -0800 (PST)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/netinet ip_icmp.c ip_input.c tcp_subr.c
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jlemon      2001/02/23 12:51:47 PST

  Modified files:
    sys/netinet          ip_icmp.c ip_input.c tcp_subr.c 
  Log:
  Allow ICMP unreachables which map into PRC_UNREACH_ADMIN_PROHIB to
  reset TCP connections which are in the SYN_SENT state, if the sequence
  number in the echoed ICMP reply is correct.  This behavior can be
  controlled by the sysctl net.inet.tcp.icmp_may_rst.
  
  Currently, only subtypes 2,3,10,11,12 are treated as such
  (port, protocol and administrative unreachables).
  
  Assocaiate an error code with these resets which is reported to the
  user application: ENETRESET.
  
  Disallow resetting TCP sessions which are not in a SYN_SENT state.
  
  Reviewed by: jesper, -net
  
  Revision  Changes    Path
  1.53      +16 -48    src/sys/netinet/ip_icmp.c
  1.155     +2 -2      src/sys/netinet/ip_input.c
  1.92      +12 -68    src/sys/netinet/tcp_subr.c


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