xref: /freebsd/contrib/libpcap/llc.h (revision cc68614da8232d8baaca0ae0d0dd8f890f06623e)
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 
22 /*
23  * Definitions for information in the LLC header.
24  */
25 
26 #define	LLC_U_FMT	3
27 #define	LLC_GSAP	1
28 #define	LLC_IG	        1 /* Individual / Group */
29 #define LLC_S_FMT	1
30 
31 #define	LLC_U_POLL	0x10
32 #define	LLC_IS_POLL	0x0100
33 #define	LLC_XID_FI	0x81
34 
35 #define LLC_U_CMD_MASK	0xef
36 #define	LLC_UI		0x03
37 #define	LLC_UA		0x63
38 #define	LLC_DISC	0x43
39 #define	LLC_DM		0x0f
40 #define	LLC_SABME	0x6f
41 #define	LLC_TEST	0xe3
42 #define	LLC_XID		0xaf
43 #define	LLC_FRMR	0x87
44 
45 #define LLC_S_CMD_MASK	0x0f
46 #define	LLC_RR		0x0001
47 #define	LLC_RNR		0x0005
48 #define	LLC_REJ		0x0009
49 
50 #define LLC_IS_NR(is)	(((is) >> 9) & 0x7f)
51 #define LLC_I_NS(is)	(((is) >> 1) & 0x7f)
52 
53 /*
54  * 802.2 LLC SAP values.
55  */
56 
57 #ifndef LLCSAP_NULL
58 #define	LLCSAP_NULL		0x00
59 #endif
60 #ifndef LLCSAP_GLOBAL
61 #define	LLCSAP_GLOBAL		0xff
62 #endif
63 #ifndef LLCSAP_8021B_I
64 #define	LLCSAP_8021B_I		0x02
65 #endif
66 #ifndef LLCSAP_8021B_G
67 #define	LLCSAP_8021B_G		0x03
68 #endif
69 #ifndef LLCSAP_IP
70 #define	LLCSAP_IP		0x06
71 #endif
72 #ifndef LLCSAP_PROWAYNM
73 #define	LLCSAP_PROWAYNM		0x0e
74 #endif
75 #ifndef LLCSAP_8021D
76 #define	LLCSAP_8021D		0x42
77 #endif
78 #ifndef LLCSAP_RS511
79 #define	LLCSAP_RS511		0x4e
80 #endif
81 #ifndef LLCSAP_ISO8208
82 #define	LLCSAP_ISO8208		0x7e
83 #endif
84 #ifndef LLCSAP_PROWAY
85 #define	LLCSAP_PROWAY		0x8e
86 #endif
87 #ifndef LLCSAP_SNAP
88 #define	LLCSAP_SNAP		0xaa
89 #endif
90 #ifndef LLCSAP_IPX
91 #define LLCSAP_IPX		0xe0
92 #endif
93 #ifndef LLCSAP_NETBEUI
94 #define LLCSAP_NETBEUI		0xf0
95 #endif
96 #ifndef LLCSAP_ISONS
97 #define	LLCSAP_ISONS		0xfe
98 #endif
99