Subject: kern/27260: Interface events in kernel shouldn't be implemented in pfil(9)
To: None <gnats-bugs@gnats.NetBSD.org>
From: Peter Postma <email@example.com>
Date: 10/14/2004 15:02:54
>Synopsis: Interface events in kernel shouldn't be implemented in pfil(9)
>Arrival-Date: Thu Oct 14 13:34:01 UTC 2004
>Originator: Peter Postma
>Release: NetBSD 2.99.9
System: NetBSD mercury.pointless.nl 2.99.9 NetBSD 2.99.9 (mercury) #57: Sun Oct 10 21:06:54 CEST 2004 firstname.lastname@example.org:/usr/obj/sys/arch/sparc64/compile/mercury sparc64
Problem described here:
I'm filing this PR because I don't have time to work on this now.
In short, I've two objections with interface events implemented in pfil(9):
1) pfil(9) is for packet filtering, attachment/detachment of interfaces
and address changes have nothing to do with it.
2) The pfil(9) API is now very ugly (e.g. extra conditionals in
It works for now, but IMHO in the long term the hacks in pfil(9) should
be removed and a cleaner solution should be implemented, maybe something
like FreeBSD's EVENTHANDLER or the extending the hook_* code in kern_subr.c.