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
|
/* packet-bt3ds.c
* Routines for Bluetooth 3DS dissection
*
* Copyright 2013, Michal Labedzki for Tieto Corporation
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/prefs.h>
#include <epan/expert.h>
#include "packet-btl2cap.h"
#include "packet-btsdp.h"
static int proto_bt3ds = -1;
static int hf_message_opcode = -1;
static int hf_association_notification = -1;
static int hf_user_request_for_battery_level_display = -1;
static int hf_reserved = -1;
static int hf_battery_level = -1;
static expert_field ei_message_opcode_reserved = EI_INIT;
static expert_field ei_reserved = EI_INIT;
static expert_field ei_battery_level_reserved = EI_INIT;
static expert_field ei_unexpected_data = EI_INIT;
static gint ett_bt3ds = -1;
static dissector_handle_t b3ds_handle;
static const value_string message_opcode_vals[] = {
{ 0x00, "3DG Connection Announcement" },
{ 0, NULL }
};
void proto_register_bt3ds(void);
void proto_reg_handoff_bt3ds(void);
static gint
dissect_bt3ds(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
proto_item *main_item;
proto_tree *main_tree;
proto_item *sub_item;
gint offset = 0;
guint8 value;
main_item = proto_tree_add_item(tree, proto_bt3ds, tvb, offset, -1, ENC_NA);
main_tree = proto_item_add_subtree(main_item, ett_bt3ds);
col_set_str(pinfo->cinfo, COL_PROTOCOL, "3DS");
switch (pinfo->p2p_dir) {
case P2P_DIR_SENT:
col_set_str(pinfo->cinfo, COL_INFO, "Sent ");
break;
case P2P_DIR_RECV:
col_set_str(pinfo->cinfo, COL_INFO, "Rcvd ");
break;
default:
col_set_str(pinfo->cinfo, COL_INFO, "UnknownDirection ");
break;
}
sub_item = proto_tree_add_item(main_tree, hf_message_opcode, tvb, offset, 1, ENC_BIG_ENDIAN);
value = tvb_get_guint8(tvb, offset);
if (value > 0)
expert_add_info(pinfo, sub_item, &ei_message_opcode_reserved);
offset += 1;
col_add_fstr(pinfo->cinfo, COL_INFO, "%s", val_to_str_const(value, message_opcode_vals, "Unknown"));
sub_item = proto_tree_add_item(main_tree, hf_reserved, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(main_tree, hf_user_request_for_battery_level_display, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(main_tree, hf_association_notification, tvb, offset, 1, ENC_BIG_ENDIAN);
value = tvb_get_guint8(tvb, offset) >> 2;
if (value != 0)
expert_add_info(pinfo, sub_item, &ei_reserved);
offset += 1;
sub_item = proto_tree_add_item(main_tree, hf_battery_level, tvb, offset, 1, ENC_BIG_ENDIAN);
value = tvb_get_guint8(tvb, offset);
if (value >= 101 && value <= 254)
expert_add_info(pinfo, sub_item, &ei_battery_level_reserved);
else if (value == 255)
proto_item_append_text(sub_item, "Battery Level Reporting Not Supported");
offset += 1;
if (tvb_reported_length_remaining(tvb, offset) > 0) {
proto_tree_add_expert(main_tree, pinfo, &ei_unexpected_data, tvb, offset, -1);
offset += tvb_reported_length_remaining(tvb, offset);
}
return offset;
}
void
proto_register_bt3ds(void)
{
module_t *module;
expert_module_t *expert_bt3ds;
static ei_register_info ei[] = {
{ &ei_message_opcode_reserved, { "bt3ds.expert.message_opcode.reserved", PI_PROTOCOL, PI_NOTE, "Value is reserved", EXPFILL }},
{ &ei_reserved, { "bt3ds.expert.reserved", PI_PROTOCOL, PI_NOTE, "Value is reserved", EXPFILL }},
{ &ei_battery_level_reserved, { "bt3ds.expert.battery_level.reserved", PI_PROTOCOL, PI_NOTE, "Value is reserved", EXPFILL }},
{ &ei_unexpected_data, { "bt3ds.expert.unexpected_data", PI_PROTOCOL, PI_WARN, "Unexpected data", EXPFILL }}
};
static hf_register_info hf[] = {
{ &hf_message_opcode,
{ "Message Opcode", "bt3ds.message_opcode",
FT_UINT8, BASE_HEX, VALS(message_opcode_vals), 0x00,
NULL, HFILL }
},
{ &hf_association_notification,
{ "Association Notification", "bt3ds.association_notification",
FT_BOOLEAN, 8, NULL, 0x01,
NULL, HFILL }
},
{ &hf_user_request_for_battery_level_display,
{ "User Request for Battery Level Display", "bt3ds.user_request_for_battery_level_display",
FT_BOOLEAN, 8, NULL, 0x02,
NULL, HFILL }
},
{ &hf_reserved,
{ "Reserved", "bt3ds.reserved",
FT_UINT8, BASE_HEX, NULL, 0xFC,
NULL, HFILL }
},
{ &hf_battery_level,
{ "Battery Level", "bt3ds.battery_level",
FT_UINT8, BASE_DEC, NULL, 0x00,
"0-100% of current charge level of battery", HFILL }
}
};
static gint *ett[] = {
&ett_bt3ds
};
proto_bt3ds = proto_register_protocol("Bluetooth 3DS Profile", "BT 3DS", "bt3ds");
b3ds_handle = register_dissector("bt3ds", dissect_bt3ds, proto_bt3ds);
proto_register_field_array(proto_bt3ds, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
expert_bt3ds = expert_register_protocol(proto_bt3ds);
expert_register_field_array(expert_bt3ds, ei, array_length(ei));
module = prefs_register_protocol_subtree("Bluetooth", proto_bt3ds, NULL);
prefs_register_static_text_preference(module, "3ds.version",
"Bluetooth Profile 3DS version: 1.0",
"Version of profile supported by this dissector.");
}
void
proto_reg_handoff_bt3ds(void)
{
dissector_add_string("bluetooth.uuid", "1137", b3ds_handle);
dissector_add_string("bluetooth.uuid", "1138", b3ds_handle);
dissector_add_string("bluetooth.uuid", "1139", b3ds_handle);
dissector_add_uint("btl2cap.psm", BTL2CAP_PSM_3DS, b3ds_handle);
dissector_add_for_decode_as("btl2cap.cid", b3ds_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:
*/
|
