kern/123972: net.inet.ip.process_options unimplemented

[Kris Kennaway]

The following reply was made to PR kern/123972; it has been noted by GNATS.

From: Kris Kennaway <kris at FreeBSD.org>
To: Ighighi <ighighi at gmail.com>
Cc: freebsd-gnats-submit at FreeBSD.org
Subject: Re: kern/123972: net.inet.ip.process_options unimplemented
Date: Sun, 25 May 2008 11:49:35 +0200

 Ighighi wrote:
 
 > The net.inet.ip.process_options sysctl, described by "sysctl -d" as:
 > Enable IP options processing ([LS]SRR, RR, TS)
 > isn't implemented in FreeBSD.
 > 
 > The inet(4) manpages describes it as:
 > ip.process_options    Integer: control IP options processing.  By setting
 >                       this variable to 0, all IP options in the incoming
 >                       packets will be ignored, and the packets will be
 >                       passed unmodified.  By setting to 1, IP options in
 >                       the incoming packets will be processed accordingly.
 >                       By setting to 2, an ICMP ``prohibited by filter''
 >                       message will be sent back in respose to incoming
 >                       packets with IP options.  Default is 1.  This
 >                       sysctl(8) variable affects packets destined for a
 >                       local host as well as packets forwarded to some
 >                       other host.
 > 
 >> How-To-Repeat:
 > Either search for "process_options" in the FreeBSD Kernel Cross Reference:
 > http://fxr.watson.org/fxr/search?string=process_options
 
 What do you mean?  It's implemented right underneath the sysctl 
 declaration that this link shows you.
 
 Kris