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From: loverso@encore.UUCP (John LoVerso)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: IP options
Message-ID: <1954@encore.UUCP>
Date: Thu, 17-Sep-87 11:33:42 EDT
Article-I.D.: encore.1954
Posted: Thu Sep 17 11:33:42 1987
Date-Received: Sat, 19-Sep-87 15:00:08 EDT
References: <423@root44.co.uk> <8709092006.AA09597@okeeffe.Berkeley.EDU> <6211@sgi.SGI.COM>
Reply-To: loverso@encore.UUCP (John LoVerso)
Organization: Encore Computer Corp, Marlboro, MA
Lines: 69
Summary: RTF_MODIFIED

In article <6211@sgi.SGI.COM> vjs@rhyolite.SGI.COM (Vernon Schryver) writes:
> I have been faithfully following the 4.3 fixes posted here and in the
> 'official' news group.  However, RTF_MODIFIED does not seem to be
> defined in my source.

To my knowledge, they've never been released outside of Berkeley other
than in the Tahoe-Beta release of 4.3BSD.  In there, RTF_MODIFIED is
defined to mean the route came in via a redirect.  Here are the
diffs to net/route.[ch].  With all the various versions of the 4.3 TCP/IP
code I've seen, this is just about all that I've ever seen changed in net/.
BTW, I'm only posting this since I haven't seen a reply from Mike Karels yet,
and without this, his ip_input.c changes aren't much good.

John

*** /source/BSD4.3/sys/net/route.h	Thu Jun  5 02:43:05 1986
--- route.h	Thu Jan 15 18:09:44 1987
***************
*** 4,8 ****
   * specifies the terms and conditions for redistribution.
   *
!  *	@(#)route.h	7.1 (Berkeley) 6/4/86
   */
  
--- 4,8 ----
   * specifies the terms and conditions for redistribution.
   *
!  *	@(#)route.h	7.2 (Berkeley) 1/15/87
   */
  
***************
*** 46,49 ****
--- 46,50 ----
  #define	RTF_HOST	0x4		/* host entry (net otherwise) */
  #define	RTF_DYNAMIC	0x10		/* created dynamically (by redirect) */
+ #define	RTF_MODIFIED	0x20		/* modified dynamically (by redirect) */
  
  /*
*** /source/BSD4.3/sys/net/route.c	Thu Jun  5 02:42:47 1986
--- route.c	Thu Jan 15 18:09:44 1987
***************
*** 4,8 ****
   * specifies the terms and conditions for redistribution.
   *
!  *	@(#)route.c	7.1 (Berkeley) 6/4/86
   */
  
--- 4,8 ----
   * specifies the terms and conditions for redistribution.
   *
!  *	@(#)route.c	7.2 (Berkeley) 1/15/87
   */
  
***************
*** 176,181 ****
  			 */
  			rt->rt_gateway = *gateway;
  		}
- 		rtstat.rts_newgateway++;
  	} else
  		rtstat.rts_badredirect++;
--- 176,182 ----
  			 */
  			rt->rt_gateway = *gateway;
+ 			rt->rt_flags |= RTF_MODIFIED;
+ 			rtstat.rts_newgateway++;
  		}
  	} else
  		rtstat.rts_badredirect++;