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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: /tcpdump/master/tcpdump/llc.h,v 1.14 2002-04-07 09:50:30 guy 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_int8_t dsap;
u_int8_t ssap;
union {
u_int8_t u_ctl;
u_int16_t is_ctl;
struct {
u_int8_t snap_ui;
u_int8_t snap_pi[5];
} snap;
struct {
u_int8_t snap_ui;
u_int8_t snap_orgcode[3];
u_int8_t snap_ethertype[2];
} snap_ether;
} ctl;
};
#define llcui ctl.snap.snap_ui
#define llcpi ctl.snap.snap_pi
#define llc_orgcode ctl.snap_ether.snap_orgcode
#define llc_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 0x0100
#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) >> 1) & 0x03)
#define LLC_RR 0x0001
#define LLC_RNR 0x0005
#define LLC_REJ 0x0009
#define LLC_IS_NR(is) (((is) >> 9) & 0x7f)
#define LLC_I_NS(is) (((is) >> 1) & 0x7f)
#ifndef LLCSAP_NULL
#define LLCSAP_NULL 0x00
#endif
#ifndef LLCSAP_GLOBAL
#define LLCSAP_GLOBAL 0xff
#endif
#ifndef LLCSAP_8021B_I
#define LLCSAP_8021B_I 0x02
#endif
#ifndef LLCSAP_8021B_G
#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_IPX
#define LLCSAP_IPX 0xe0
#endif
#ifndef LLCSAP_NETBEUI
#define LLCSAP_NETBEUI 0xf0
#endif
#ifndef LLCSAP_ISONS
#define LLCSAP_ISONS 0xfe
#endif
#define OUI_ENCAP_ETHER 0x000000 /* encapsulated Ethernet */
#define OUI_CISCO 0x00000c /* Cisco protocols */
#define OUI_CISCO_90 0x0000f8 /* Cisco bridging */
#define OUI_RFC2684 0x0080c2 /* RFC 2684 bridged Ethernet */
#define OUI_APPLETALK 0x080007 /* Appletalk */
/*
* PIDs for use with OUI_CISCO.
*/
#define PID_CISCO_CDP 0x2000 /* Cisco Discovery Protocol */
/*
* PIDs for use with OUI_RFC2684.
*/
#define PID_RFC2684_ETH_FCS 0x0001 /* Ethernet, with FCS */
#define PID_RFC2684_ETH_NOFCS 0x0007 /* Ethernet, without FCS */
#define PID_RFC2684_802_4_FCS 0x0002 /* 802.4, with FCS */
#define PID_RFC2684_802_4_NOFCS 0x0008 /* 802.4, without FCS */
#define PID_RFC2684_802_5_FCS 0x0003 /* 802.5, with FCS */
#define PID_RFC2684_802_5_NOFCS 0x0009 /* 802.5, without FCS */
#define PID_RFC2684_FDDI_FCS 0x0004 /* FDDI, with FCS */
#define PID_RFC2684_FDDI_NOFCS 0x000a /* FDDI, without FCS */
#define PID_RFC2684_802_6_FCS 0x0005 /* 802.6, with FCS */
#define PID_RFC2684_802_6_NOFCS 0x000b /* 802.6, without FCS */
#define PID_RFC2684_BPDU 0x000e /* BPDUs */
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