kern/45017: npf ignores packets if no interface is specified in the config

[zoltan%netbsd.org@localhost]

>Number:         45017
>Category:       kern
>Synopsis:       npf ignores packets if no interface is specified in the config
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Jun 03 17:05:00 +0000 2011
>Originator:     Zoltan Arnold NAGY
>Release:        -current
>Organization:
>Environment:
root@:~# uname -a
NetBSD testbox 5.99.52 NetBSD 5.99.52 (MONOLITHIC) #29: Fri Jun  3 18:54:31 
CEST 2011  root@testbox:/usr/build/object/sys/arch/i386/compile/MONOLITHIC i386

>Description:
the following config works as expected:
group (default) {
        block in on wm0 from 88.151.101.98/32 to any
}

the following does not:
group (default) {
        block in from 88.151.101.98/32 to any
}

>How-To-Repeat:
install -current, use the configs presented
>Fix: