/* * Copyright (c) 1993, 1994, 1997 *	The Regents of the University of California.  All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that: (1) source code distributions * retain the above copyright notice and this paragraph in its entirety, (2) * distributions including binary code include the above copyright notice and * this paragraph in its entirety in the documentation or other materials * provided with the distribution, and (3) all advertising materials mentioning * features or use of this software display the following acknowledgement: * ``This product includes software developed by the University of California, * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of * the University nor the names of its contributors may 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 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * * @(#) $Header: llc.h,v 1.6 97/06/13 02:06:07 leres Exp $ (LBL) *//* * This stuff should come from a system header file, but there's no * obviously portable way to do that and it's not really going * to change from system to system. *//* * A somewhat abstracted view of the LLC header */struct llc {	u_char dsap;	u_char ssap;	union {		u_char u_ctl;		u_short is_ctl;		struct {			u_char snap_ui;			u_char snap_pi[5];		} snap;		struct {			u_char snap_ui;			u_char snap_orgcode[3];			u_char snap_ethertype[2];		} snap_ether;	} ctl;};#define	llcui		ctl.snap.snap_ui#define	llcpi		ctl.snap.snap_pi#define	orgcode		ctl.snap_ether.snap_orgcode#define	ethertype	ctl.snap_ether.snap_ethertype#define	llcis		ctl.is_ctl#define	llcu		ctl.u_ctl#define	LLC_U_FMT	3#define	LLC_GSAP	1#define LLC_S_FMT	1#define	LLC_U_POLL	0x10#define	LLC_IS_POLL	0x0001#define	LLC_XID_FI	0x81#define	LLC_U_CMD(u)	((u) & 0xef)#define	LLC_UI		0x03#define	LLC_UA		0x63#define	LLC_DISC	0x43#define	LLC_DM		0x0f#define	LLC_SABME	0x6f#define	LLC_TEST	0xe3#define	LLC_XID		0xaf#define	LLC_FRMR	0x87#define	LLC_S_CMD(is)	(((is) >> 10) & 0x03)#define	LLC_RR		0x0100#define	LLC_RNR		0x0500#define	LLC_REJ		0x0900#define LLC_IS_NR(is)	(((is) >> 1) & 0x7f)#define LLC_I_NS(is)	(((is) >> 9) & 0x7f)#ifndef LLCSAP_NULL#define	LLCSAP_NULL		0x00#endif#ifndef LLCSAP_GLOBAL#define	LLCSAP_GLOBAL		0xff#endif#ifndef LLCSAP_8021B#define	LLCSAP_8021B_I		0x02#endif#ifndef LLCSAP_8021B#define	LLCSAP_8021B_G		0x03#endif#ifndef LLCSAP_IP#define	LLCSAP_IP		0x06#endif#ifndef LLCSAP_PROWAYNM#define	LLCSAP_PROWAYNM		0x0e#endif#ifndef LLCSAP_8021D#define	LLCSAP_8021D		0x42#endif#ifndef LLCSAP_RS511#define	LLCSAP_RS511		0x4e#endif#ifndef LLCSAP_ISO8208#define	LLCSAP_ISO8208		0x7e#endif#ifndef LLCSAP_PROWAY#define	LLCSAP_PROWAY		0x8e#endif#ifndef LLCSAP_SNAP#define	LLCSAP_SNAP		0xaa#endif#ifndef LLCSAP_ISONS#define	LLCSAP_ISONS		0xfe#endif