In gmane.os.openbsd.misc, Mattieu Baptiste wrote:
> Hi,
>
> I'm testing npppd with pppx(4).
>
> As i'm understanding npppd, a new pppx(4) interface is created for every
> new session. Thus, new /dev/pppxN nodes must be created for the sessions
> that we intend to have.
>
> But at this point, filtering with PF needs special handling for every
> pppx(4) interface. How about adding these interfaces to a "pppx" interface
> group, by adding the if_addgroup() call ?
>
> What do you think ?
This makes sense to me, and the diff below seems to work:
Index: if_pppx.c
===================================================================
RCS file: /cvs/src/sys/net/if_pppx.c,v
retrieving revision 1.15
diff -u -p -r1.15 if_pppx.c
--- if_pppx.c 19 Sep 2012 17:50:17 -0000 1.15
+++ if_pppx.c 1 Feb 2013 21:15:47 -0000
@@ -874,6 +874,7 @@ pppx_add_session(struct pppx_dev *pxd, s
pipex_timer_start();
if_attach(ifp);
+ if_addgroup(ifp, "pppx");
if_alloc_sadl(ifp);
#if NBPFILTER > 0
