1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
/*
* 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 1.16 2002/12/11 07:13:54 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 */
|
