$NetBSD: patch-df,v 1.1.1.1 1999/10/08 04:34:43 dbj Exp $

--- /dev/null	Sat Sep 18 11:13:03 1999
+++ netbsd-1.4/lkm_ppp.c	Sat Sep 18 11:16:47 1999
@@ -0,0 +1,94 @@
+/*	NetBSD	*/
+/*
+ * Copyright (c) 1999 Darrin B. Jewell
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Darrin B. Jewell
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/conf.h>
+#include <sys/exec.h>
+#include <sys/lkm.h>
+
+#include <sys/tty.h>
+#include <sys/ttycom.h>
+
+void pppattach __P((void));
+int	pppopen __P((dev_t dev, struct tty *tp));
+int	pppclose __P((struct tty *tp, int flags));
+int	ppptioctl __P((struct tty *tp, u_long cmd, caddr_t data,
+			int flag, struct proc *p));
+int	pppinput __P((int c, struct tty *tp));
+int	pppstart __P((struct tty *tp));
+int	pppread __P((struct tty *tp, struct uio *uio, int flag));
+int	pppwrite __P((struct tty *tp, struct uio *uio, int flag));
+
+MOD_MISC("ppp");
+
+int	if_ppp_lkm_lkmentry __P((struct lkm_table *, int, int));
+int	if_ppp_lkm_load __P((struct lkm_table *, int));
+
+struct linesw ppp_linesw = {
+	pppopen,
+	pppclose,
+	pppread,
+	pppwrite,
+	ppptioctl,
+	pppinput,
+	pppstart,
+	ttymodem
+};
+
+int
+if_ppp_lkm_load(lkmtp, cmd)
+		struct lkm_table *lkmtp;
+		int cmd;
+{
+	if (lkmexists(lkmtp)) return EEXIST;
+
+	linesw[PPPDISC] = ppp_linesw;
+	pppattach();
+
+	/* XXX, in order for this lkm to work, we would need to
+	 * arrange to have pppintr() called at splsoftnet()
+	 * I might at some point use a kernel thread to invoke
+	 * this when needed instead, but for now, I just plan
+	 * to use ppp compiled into the kernel. --darrin
+	 */
+#error "Not Yet Implemented, if_ppp_lkm_load"
+
+	return 0;
+}
+
+int
+if_ppp_lkm_lkmentry(lkmtp, cmd, ver)
+	struct lkm_table *lkmtp;
+	int cmd, ver;
+{
+	DISPATCH(lkmtp, cmd, ver, if_ppp_lkm_load,lkm_nofunc,lkm_nofunc);
+}