Import version 1.5 of ppp.

<sales>
This is a user-level ppp implementation that uses the
tun driver.  It was originally created by a Japanese
ISP.  It's now piled with features.  Check the man pages
for details.
</sales>

The sources are identical to the ones in FreeBSD, except
for the Makefile.

IP aliasing (NAT) is disabled, and can be enabled by simply
doing a ``make install'' of libalias, then rebuilding
ppp.  I'll create libalias as a port soon.

1 files changed, 20 insertions, 0 deletions

diff --git a/usr.sbin/ppp/tun.h b/usr.sbin/ppp/tun.h
new file mode 100644
index 00000000000..ca31c8f66d6
--- /dev/null
+++ b/usr.sbin/ppp/tun.h
@@ -0,0 +1,20 @@
+/*
+ * $Id: tun.h,v 1.1 1997/11/23 20:27:36 brian Exp $
+ */
+
+struct tun_data {
+#ifdef __OpenBSD__
+  struct tunnel_header head;
+#endif
+  u_char data[MAX_MRU];
+};
+
+#ifdef __OpenBSD__
+#define tun_fill_header(f,proto) do { (f).head.tun_af = (proto); } while (0)
+#define tun_check_header(f,proto) ((f).head.tun_af == (proto))
+#else
+#define tun_fill_header(f,proto) do { } while (0)
+#define tun_check_header(f,proto) (1)
+#endif
+
+extern void tun_configure(int, int);