1/*
2 * Copyright (c) 1993, 1994, 1997
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that: (1) source code distributions
7 * retain the above copyright notice and this paragraph in its entirety, (2)
8 * distributions including binary code include the above copyright notice and
9 * this paragraph in its entirety in the documentation or other materials
10 * provided with the distribution, and (3) all advertising materials mentioning
11 * features or use of this software display the following acknowledgement:
12 * ``This product includes software developed by the University of California,
13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
14 * the University nor the names of its contributors may be used to endorse
15 * or promote products derived from this software without specific prior
16 * written permission.
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
20 *
21 * @(#) Header: /tcpdump/master/tcpdump/llc.h,v 1.23 2007-04-13 09:43:11 hannes Exp (LBL)
22 */
23
24/*
25 * Definitions for information in the LLC header.
26 */
27
28#define	LLC_U_FMT	3
29#define	LLC_GSAP	1
30#define	LLC_IG	        1 /* Individual / Group */
31#define LLC_S_FMT	1
32
33#define	LLC_U_POLL	0x10
34#define	LLC_IS_POLL	0x0100
35#define	LLC_XID_FI	0x81
36
37#define	LLC_U_CMD(u)	((u) & 0xef)
38#define	LLC_UI		0x03
39#define	LLC_UA		0x63
40#define	LLC_DISC	0x43
41#define	LLC_DM		0x0f
42#define	LLC_SABME	0x6f
43#define	LLC_TEST	0xe3
44#define	LLC_XID		0xaf
45#define	LLC_FRMR	0x87
46
47#define	LLC_S_CMD(is)	(((is) >> 2) & 0x03)
48#define	LLC_RR		0x0001
49#define	LLC_RNR		0x0005
50#define	LLC_REJ		0x0009
51
52#define LLC_IS_NR(is)	(((is) >> 9) & 0x7f)
53#define LLC_I_NS(is)	(((is) >> 1) & 0x7f)
54
55#ifndef LLCSAP_NULL
56#define	LLCSAP_NULL		0x00
57#endif
58#ifndef LLCSAP_GLOBAL
59#define	LLCSAP_GLOBAL		0xff
60#endif
61#ifndef LLCSAP_8021B_I
62#define	LLCSAP_8021B_I		0x02
63#endif
64#ifndef LLCSAP_8021B_G
65#define	LLCSAP_8021B_G		0x03
66#endif
67#ifndef LLCSAP_SNA
68#define	LLCSAP_SNA		0x04
69#endif
70#ifndef LLCSAP_IP
71#define	LLCSAP_IP		0x06
72#endif
73#ifndef LLCSAP_PROWAYNM
74#define	LLCSAP_PROWAYNM		0x0e
75#endif
76#ifndef LLCSAP_8021D
77#define	LLCSAP_8021D		0x42
78#endif
79#ifndef LLCSAP_RS511
80#define	LLCSAP_RS511		0x4e
81#endif
82#ifndef LLCSAP_ISO8208
83#define	LLCSAP_ISO8208		0x7e
84#endif
85#ifndef LLCSAP_PROWAY
86#define	LLCSAP_PROWAY		0x8e
87#endif
88#ifndef LLCSAP_SNAP
89#define	LLCSAP_SNAP		0xaa
90#endif
91#ifndef LLCSAP_IPX
92#define LLCSAP_IPX		0xe0
93#endif
94#ifndef LLCSAP_NETBEUI
95#define LLCSAP_NETBEUI		0xf0
96#endif
97#ifndef LLCSAP_ISONS
98#define	LLCSAP_ISONS		0xfe
99#endif
100
101/*
102 * PIDs for use with OUI_CISCO.
103 */
104#define	PID_CISCO_CDP		0x2000	/* Cisco Discovery Protocol */
105#define	PID_CISCO_VTP		0x2003	/* Cisco VLAN Trunk Protocol */
106#define	PID_CISCO_DTP		0x2004	/* Cisco Dynamic Trunk Protocol */
107#define	PID_CISCO_UDLD		0x0111	/* Unidirectional Link Detection */
108#define	PID_CISCO_PVST		0x010b	/* Per VLAN Spanning Tree+ and RPVST+ */
109
110/*
111 * PIDs for use with OUI_RFC2684.
112 */
113#define PID_RFC2684_ETH_FCS	0x0001	/* Ethernet, with FCS */
114#define PID_RFC2684_ETH_NOFCS	0x0007	/* Ethernet, without FCS */
115#define PID_RFC2684_802_4_FCS	0x0002	/* 802.4, with FCS */
116#define PID_RFC2684_802_4_NOFCS	0x0008	/* 802.4, without FCS */
117#define PID_RFC2684_802_5_FCS	0x0003	/* 802.5, with FCS */
118#define PID_RFC2684_802_5_NOFCS	0x0009	/* 802.5, without FCS */
119#define PID_RFC2684_FDDI_FCS	0x0004	/* FDDI, with FCS */
120#define PID_RFC2684_FDDI_NOFCS	0x000a	/* FDDI, without FCS */
121#define PID_RFC2684_802_6_FCS	0x0005	/* 802.6, with FCS */
122#define PID_RFC2684_802_6_NOFCS	0x000b	/* 802.6, without FCS */
123#define PID_RFC2684_BPDU	0x000e	/* BPDUs */
124