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121 lines
3.1 KiB
C
121 lines
3.1 KiB
C
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/*
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* Copyright (c) 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that: (1) source code distributions
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* retain the above copyright notice and this paragraph in its entirety, (2)
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* distributions including binary code include the above copyright notice and
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* this paragraph in its entirety in the documentation or other materials
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* provided with the distribution, and (3) all advertising materials mentioning
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* features or use of this software display the following acknowledgement:
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* ``This product includes software developed by the University of California,
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* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
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* the University nor the names of its contributors may be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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* @(#) $Header: llc.h,v 1.4 94/06/14 20:11:46 leres Exp $ (LBL)
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*/
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/*
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* This stuff should come from a system header file, but there's no
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* obviously portable way to do that and it's not really going
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* to change from system to system.
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*/
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/*
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* A somewhat abstracted view of the LLC header
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*/
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struct llc {
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u_char dsap;
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u_char ssap;
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union {
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u_char u_ctl;
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u_short is_ctl;
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struct {
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u_char snap_ui;
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u_char snap_pi[5];
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} snap;
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struct {
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u_char snap_ui;
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u_char snap_orgcode[3];
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u_char snap_ethertype[2];
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} snap_ether;
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} ctl;
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};
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#define llcui ctl.snap.snap_ui
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#define llcpi ctl.snap.snap_pi
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#define orgcode ctl.snap_ether.snap_orgcode
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#define ethertype ctl.snap_ether.snap_ethertype
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#define llcis ctl.is_ctl
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#define llcu ctl.u_ctl
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#define LLC_U_FMT 3
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#define LLC_GSAP 1
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#define LLC_S_FMT 1
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#define LLC_U_POLL 0x10
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#define LLC_IS_POLL 0x0001
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#define LLC_XID_FI 0x81
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#define LLC_U_CMD(u) ((u) & 0xef)
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#define LLC_UI 0x03
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#define LLC_UA 0x63
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#define LLC_DISC 0x43
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#define LLC_DM 0x0f
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#define LLC_SABME 0x6f
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#define LLC_TEST 0xe3
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#define LLC_XID 0xaf
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#define LLC_FRMR 0x87
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#define LLC_S_CMD(is) (((is) >> 10) & 0x03)
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#define LLC_RR 0x0100
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#define LLC_RNR 0x0500
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#define LLC_REJ 0x0900
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#define LLC_IS_NR(is) (((is) >> 9) & 0x7f)
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#define LLC_I_NS(is) (((is) >> 1) & 0x7f)
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#ifndef LLCSAP_NULL
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#define LLCSAP_NULL 0x00
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#endif
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#ifndef LLCSAP_GLOBAL
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#define LLCSAP_GLOBAL 0xff
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#endif
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#ifndef LLCSAP_8021B
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#define LLCSAP_8021B_I 0x02
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#endif
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#ifndef LLCSAP_8021B
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#define LLCSAP_8021B_G 0x03
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#endif
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#ifndef LLCSAP_IP
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#define LLCSAP_IP 0x06
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#endif
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#ifndef LLCSAP_PROWAYNM
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#define LLCSAP_PROWAYNM 0x0e
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#endif
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#ifndef LLCSAP_8021D
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#define LLCSAP_8021D 0x42
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#endif
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#ifndef LLCSAP_RS511
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#define LLCSAP_RS511 0x4e
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#endif
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#ifndef LLCSAP_ISO8208
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#define LLCSAP_ISO8208 0x7e
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#endif
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#ifndef LLCSAP_PROWAY
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#define LLCSAP_PROWAY 0x8e
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#endif
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#ifndef LLCSAP_SNAP
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#define LLCSAP_SNAP 0xaa
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#endif
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#ifndef LLCSAP_ISONS
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#define LLCSAP_ISONS 0xfe
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#endif
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