On 01.08.2013 20:18, Rui Paulo wrote:
On 1 Aug 2013, at 07:23, Gleb Smirnoff <gleb...@freebsd.org> wrote:
On Wed, Jul 31, 2013 at 04:24:50PM +0000, Hiroki Sato wrote:
H> Author: hrs
H> Date: Wed Jul 31 16:24:49 2013
H> New Revision: 253841
H> URL: http://svnweb.freebsd.org/changeset/base/253841
H>
H> Log:
H> Allocate in6_ifextra (ifp->if_afdata[AF_INET6]) only for IPv6-capable
H> interfaces. This eliminates unnecessary IPv6 processing for non-IPv6
H> interfaces.
H>
H> MFC after: 3 days
H>
H> Modified:
H> head/sys/netinet6/in6.c
H> head/sys/netinet6/in6_ifattach.c
H> head/sys/netinet6/nd6.c
H>
H> Modified: head/sys/netinet6/in6.c
H>
==============================================================================
H> --- head/sys/netinet6/in6.c Wed Jul 31 15:55:01 2013 (r253840)
H> +++ head/sys/netinet6/in6.c Wed Jul 31 16:24:49 2013 (r253841)
H> @@ -2746,6 +2746,13 @@ in6_domifattach(struct ifnet *ifp)
H> {
H> struct in6_ifextra *ext;
H>
H> + /* There are not IPv6-capable interfaces. */
H> + switch (ifp->if_type) {
H> + case IFT_PFLOG:
H> + case IFT_PFSYNC:
H> + case IFT_USB:
H> + return (NULL);
H> + }
All three should just disappear as interfaces :)
What? Why?
Because thay aren't really interfaces. All they need is BPF.
There is a cleaner approach described here:
http://lists.freebsd.org/pipermail/freebsd-net/2012-December/034031.html
--
Rui Paulo
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