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
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
/* packet-aruba-iap.c
* Routines for Aruba IAP header disassembly
* Copyright 2014, Alexis La Goutte <alexis.lagoutte at gmail dot com>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
/*
* Aruba Instant AP broadcast on L2 Layer with ethertype 0x8ffd
* All frame start with 0xbeef (Magic number)
* Octet 1 : Header (version)
* Octet 2 : Type (only see type 3, 4, 5, 7 with IP Address...)
* Octet 3 : Length
* Octet 4 : Id
*
* Only for Type 3, 4, 5 and 7
* Octet 5 : Status (Master / Slave..)
* Octet 6-9 : timestamp
* Octet 10-13 : The address IP(v4) of VC (Virtual Controller)
* Octet 14 : Unknown
* Octet 15-16 : Vlan ID (of Uplink)
* Octet 17-20 : Unknown...
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/addr_resolv.h>
#define ETHERTYPE_IAP 0x8ffd
#define MAGIC_IAP 0xbeef
void proto_register_aruba_iap(void);
void proto_reg_handoff_aruba_iap(void);
static int proto_aruba_iap = -1;
static gint ett_aruba_iap = -1;
static int hf_iap_magic = -1;
static int hf_iap_version = -1;
static int hf_iap_type = -1;
static int hf_iap_length = -1;
static int hf_iap_id = -1;
static int hf_iap_status = -1;
static int hf_iap_uptime = -1;
static int hf_iap_vc_ip = -1;
static int hf_iap_pvid = -1;
static int hf_iap_unknown_uint = -1;
static int hf_iap_unknown_bytes = -1;
static int
dissect_aruba_iap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
proto_tree *ti;
proto_tree *aruba_iap_tree;
guint16 magic;
guint8 type;
int offset = 0;
magic = tvb_get_ntohs(tvb, offset);
if(magic != MAGIC_IAP)
{
return 0;
}
col_set_str(pinfo->cinfo, COL_PROTOCOL, "IAP");
col_clear(pinfo->cinfo, COL_INFO);
ti = proto_tree_add_item(tree, proto_aruba_iap, tvb, 0, -1, ENC_NA);
aruba_iap_tree = proto_item_add_subtree(ti, ett_aruba_iap);
proto_tree_add_item(aruba_iap_tree, hf_iap_magic, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(aruba_iap_tree, hf_iap_version, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
col_add_fstr(pinfo->cinfo, COL_INFO, "Aruba Instant AP");
proto_tree_add_item(aruba_iap_tree, hf_iap_type, tvb, offset, 1, ENC_BIG_ENDIAN);
type = tvb_get_guint8(tvb, offset);
offset += 1;
proto_tree_add_item(aruba_iap_tree, hf_iap_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(aruba_iap_tree, hf_iap_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
if(type == 3 || type == 4 || type == 5 || type == 7){
proto_tree_add_item(aruba_iap_tree, hf_iap_status, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(aruba_iap_tree, hf_iap_uptime, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(aruba_iap_tree, hf_iap_vc_ip, tvb, offset, 4, ENC_BIG_ENDIAN);
col_append_fstr(pinfo->cinfo, COL_INFO, " VC IP: %s", tvb_ip_to_str(tvb, offset));
offset += 4;
proto_tree_add_item(aruba_iap_tree, hf_iap_unknown_uint, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(aruba_iap_tree, hf_iap_pvid, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(aruba_iap_tree, hf_iap_unknown_uint, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(aruba_iap_tree, hf_iap_unknown_bytes, tvb, offset, -1, ENC_NA);
} else {
proto_tree_add_item(aruba_iap_tree, hf_iap_unknown_bytes, tvb, offset, -1, ENC_NA);
}
return tvb_reported_length(tvb);
}
void
proto_register_aruba_iap(void)
{
static hf_register_info hf[] = {
{ &hf_iap_magic,
{ "Magic", "aruba_iap.magic", FT_UINT16, BASE_HEX, NULL,0x0,
"Magic Number of IAP trafic (Always 0x8ffd)", HFILL}},
{ &hf_iap_version,
{ "Version", "aruba_iap.version", FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}},
{ &hf_iap_type,
{ "Type", "aruba_iap.type", FT_UINT8, BASE_DEC, NULL, 0x0,
"Type of message", HFILL}},
{ &hf_iap_length,
{ "Length", "aruba_iap.length", FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}},
{ &hf_iap_id,
{ "Id", "aruba_iap.id", FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}},
{ &hf_iap_status,
{ "Status", "aruba_iap.status", FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL}},
{ &hf_iap_uptime,
{ "Uptime", "aruba_iap.uptime", FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL}},
{ &hf_iap_vc_ip,
{ "VC IP", "aruba_iap.vc_ip", FT_IPv4, BASE_NONE, NULL, 0x0,
"Address IP of Virtual Controller", HFILL}},
{ &hf_iap_pvid,
{ "PVID (Port Vlan ID)", "aruba_iap.pvid", FT_UINT16, BASE_DEC, NULL, 0x0,
"Vlan ID (of Uplink)", HFILL}},
{ &hf_iap_unknown_bytes,
{ "Unknown", "aruba_iap.unknown.bytes", FT_BYTES, BASE_NONE, NULL, 0x0,
"Unknown Data...", HFILL}},
{ &hf_iap_unknown_uint,
{ "Unknown", "aruba_iap.unknown.uint", FT_UINT32, BASE_DEC_HEX, NULL, 0x0,
"Unknown (UINT) Data...", HFILL}},
};
static gint *ett[] = {
&ett_aruba_iap,
};
proto_aruba_iap = proto_register_protocol("Aruba Instant AP Protocol",
"aruba_iap", "aruba_iap");
proto_register_field_array(proto_aruba_iap, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
void
proto_reg_handoff_aruba_iap(void)
{
dissector_handle_t iap_handle;
iap_handle = create_dissector_handle(dissect_aruba_iap, proto_aruba_iap);
dissector_add_uint("ethertype", ETHERTYPE_IAP, iap_handle);
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
|
