1 files changed, 58 insertions, 0 deletions

diff --git a/usr.sbin/ppp/hdlc.h b/usr.sbin/ppp/hdlc.h
new file mode 100644
index 0000000..3c03655
--- /dev/null
+++ b/usr.sbin/ppp/hdlc.h
@@ -0,0 +1,58 @@
+/*
+ *	    Written by Toshiharu OHNO (tony-o@iij.ad.jp)
+ *
+ *   Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that the above copyright notice and this paragraph are
+ * duplicated in all such forms and that any documentation,
+ * advertising materials, and other materials related to such
+ * distribution and use acknowledge that the software was developed
+ * by the Internet Initiative Japan.  The name of the
+ * IIJ may not be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * $Id:$
+ *
+ *	TODO:
+ */
+
+#ifndef _HDLC_H_
+#define _HDLC_H_
+
+/*
+ *  Definition for Async HDLC
+ */
+#define HDLC_SYN 0x7e	/* SYNC character */
+#define HDLC_ESC 0x7d	/* Escape character */
+#define HDLC_XOR 0x20	/* Modifier value */
+
+#define	HDLC_ADDR 0xff
+#define	HDLC_UI	  0x03
+/*
+ *  Definition for HDLC Frame Check Sequence
+ */
+#define INITFCS 0xffff	/* Initial value for FCS computation */
+#define GOODFCS 0xf0b8	/* Good FCS value */
+
+#define	DEF_MRU		1500
+#define	MAX_MRU		2000
+#define	MIN_MRU		296
+
+/*
+ *  Output priority
+ */
+#define	PRI_NORMAL	0	/* Normal priority */
+#define	PRI_FAST	1	/* Fast (interructive) */
+#define	PRI_URGENT	2	/* Urgent (LQR packets) */
+
+unsigned char EscMap[33];
+
+void HdlcInput(struct mbuf *bp);
+void HdlcOutput(int pri, u_short proto, struct mbuf *bp);
+void AsyncOutput(int pri, struct mbuf *bp, int proto);
+
+#endif