Date: Sat, 26 Oct 2002 05:56:37 +1000 (EST) From: Bruce Evans <bde@zeta.org.au> To: Bakul Shah <bakul@bitblocks.com> Cc: Brooks Davis <brooks@one-eyed-alien.net>, Dave Evans <devans@hclb.demon.co.uk>, <freebsd-current@FreeBSD.ORG> Subject: Re: pppd not working on latest current 2002-10-20 Message-ID: <20021026054152.N5135-100000@gamplex.bde.org> In-Reply-To: <200210251841.OAA09782@valiant.cnchost.com>
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On Fri, 25 Oct 2002, Bakul Shah wrote:
> > On Fri, Oct 25, 2002 at 06:15:55PM +0000, Dave Evans wrote:
> > > Is anyone using pppd on CURRENT. somewhere between may and October it
> > > seems to have broken. My KERNEL is GENERIC, my sources are dated cvs
> > > -D2002-10-20, but I now get a message about needing facilities in the
> > > kernel. However, the kernel has many ppp entry points, I haven't
> > > modified GENERIC which loads the ppp device, I've tried loading modules
> > > with ppp in their name all to no avail.
> >
> > You need to create an interface first. Run "ifconfig ppp create".
>
> Until pppd is taught to create the interface if one doesn't
> exist, this information needs to be in /usr/src/UPDATING.
The kernel side of ppp was changed to create 0 ppp interfaces by default.
This is incompatible with the user side of ppp, which determines if ppp
is in the kernel by checking if there is a ppp interface. I use the
following low-quality work around:
%%%
Index: sys-bsd.c
===================================================================
RCS file: /home/ncvs/src/usr.sbin/pppd/sys-bsd.c,v
retrieving revision 1.18
diff -u -2 -r1.18 sys-bsd.c
--- sys-bsd.c 17 Sep 2002 15:52:35 -0000 1.18
+++ sys-bsd.c 17 Sep 2002 19:16:58 -0000
@@ -183,4 +183,19 @@
return 1; /* can't tell */
+ /*
+ * XXX interface doesn't exist until you look at it right.
+ * devfs me harder.
+ */
+ {
+ int fd, newdisc, olddisc;
+
+ fd = open("/dev/cuaa1", O_RDWR); /* XXX my tty hard-coded. */
+ ioctl(fd, TIOCGETD, &olddisc); /* XXX no error handling. */
+ newdisc = PPPDISC;
+ ioctl(fd, TIOCSETD, &newdisc); /* XXX no error handling. */
+ ioctl(fd, TIOCSETD, &olddisc); /* XXX no error handling. */
+ close(fd);
+ }
+
strncpy(ifr.ifr_name, "ppp0", sizeof (ifr.ifr_name));
ok = ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) >= 0;
%%%
devfs is not really involved here. The bug just belongs to the same
class of complications given by devfs.
Bruce
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