freebsd-dev/usr.sbin/pppd/ppp.h

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1994-09-25 02:11:26 +00:00
/*
* ppp.h - PPP global declarations.
*
* Copyright (c) 1989 Carnegie Mellon University.
* All rights reserved.
*
* 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 Carnegie Mellon University. The name of the
* University 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: ppp.h,v 1.1 1993/11/11 03:54:25 paulus Exp $
*/
#ifndef __PPP_H__
#define __PPP_H__
#define NPPP 1 /* One PPP interface supported (per process) */
/*
* Data Link Layer header = Address, Control, Protocol.
*/
#define ALLSTATIONS 0xff /* All-Stations Address */
#define UI 0x03 /* Unnumbered Information */
#define LCP 0xc021 /* Link Control Protocol */
#define IPCP 0x8021 /* IP Control Protocol */
#define UPAP 0xc023 /* User/Password Authentication Protocol */
#define CHAP 0xc223 /* Crytpographic Handshake Protocol */
#define LQR 0xc025 /* Link Quality Report protocol */
#define IP_VJ_COMP 0x002d /* VJ TCP compressed IP packet */
#define DLLHEADERLEN (sizeof (u_char) + sizeof (u_char) + sizeof (u_short))
#define MTU 1500 /* Default MTU */
#endif /* __PPP_H__ */