On Nov 13, 2006, at 5:13 AM, David Young wrote:

>
> Module Name:	src
> Committed By:	dyoung
> Date:		Mon Nov 13 05:13:42 UTC 2006
>
> Modified Files:
> 	src/distrib/sets/lists/comp: mi
> 	src/sbin/ifconfig: af_inet.c ifconfig.c
> 	src/share/man/man9: Makefile
> 	src/sys/net: if.c if.h route.c route.h rtsock.c
> 	src/sys/netinet: Makefile files.netinet if_arp.c in.c in.h in_pcb.c
> 	    in_proto.c ip_output.c
> 	src/sys/netinet6: in6.c nd6.c
> 	src/sys/sys: sockio.h
> Added Files:
> 	src/share/man/man9: in_getifa.9
> 	src/sys/netinet: in_ifattach.h in_selsrc.c in_selsrc.h
>
> Log Message:
> Add a source-address selection policy mechanism to the kernel.
>
> Also, add ioctls SIOCGIFADDRPREF/SIOCSIFADDRPREF to get/set preference
> numbers for addresses.  Make ifconfig(8) set/display preference
> numbers.
>
> To activate source-address selection policies in your kernel, add
> 'options IPSELSRC' to your kernel configuration.
>
> Miscellaneous changes in support of source-address selection:
>
>         1 Factor out some common code, producing rt_replace_ifa().
>
>         2 Abbreviate a for-loop with TAILQ_FOREACH().
>
>         3 Add the predicates on IPv4 addresses IN_LINKLOCAL() and
>           IN_PRIVATE(), that are true for link-local unicast
>           (169.254/16) and RFC1918 private addresses, respectively.
>           Add the predicate IN_ANY_LOCAL() that is true for link-local
>           unicast and multicast.
>
>         4 Add IPv4-specific interface attach/detach routines,
>           in_domifattach and in_domifdetach, which build #ifdef
>           IPSELSRC.
>
> See in_getifa(9) for a more thorough description of source-address
> selection policy.
>

Yay! Thanks!

--
Rui Paulo