/* * 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: /tcpdump/master/tcpdump/llc.h,v 1.6.1.1 1999/10/07 23:47:10 mcr 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