?? llc.h
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/* * 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
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