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
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
*
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#define _GNU_SOURCE
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>
#include <errno.h>
#include <arpa/inet.h>
#include "lib/bluetooth.h"
#include "lib/sdp.h"
#include "lib/sdp_lib.h"
#include "uuid-helper.h"
char *bt_modalias(uint16_t source, uint16_t vendor,
uint16_t product, uint16_t version)
{
char *str;
int err;
switch (source) {
case 0x0001:
err = asprintf(&str, "%s:v%04Xp%04Xd%04X",
"bluetooth", vendor, product, version);
break;
case 0x0002:
err = asprintf(&str, "%s:v%04Xp%04Xd%04X",
"usb", vendor, product, version);
break;
default:
return NULL;
}
if (err < 0)
return NULL;
return str;
}
char *bt_uuid2string(uuid_t *uuid)
{
char *str;
uuid_t uuid128;
unsigned int data0;
unsigned short data1;
unsigned short data2;
unsigned short data3;
unsigned int data4;
unsigned short data5;
int err;
if (!uuid)
return NULL;
switch (uuid->type) {
case SDP_UUID16:
sdp_uuid16_to_uuid128(&uuid128, uuid);
break;
case SDP_UUID32:
sdp_uuid32_to_uuid128(&uuid128, uuid);
break;
case SDP_UUID128:
memcpy(&uuid128, uuid, sizeof(uuid_t));
break;
default:
/* Type of UUID unknown */
return NULL;
}
memcpy(&data0, &uuid128.value.uuid128.data[0], 4);
memcpy(&data1, &uuid128.value.uuid128.data[4], 2);
memcpy(&data2, &uuid128.value.uuid128.data[6], 2);
memcpy(&data3, &uuid128.value.uuid128.data[8], 2);
memcpy(&data4, &uuid128.value.uuid128.data[10], 4);
memcpy(&data5, &uuid128.value.uuid128.data[14], 2);
err = asprintf(&str, "%.8x-%.4x-%.4x-%.4x-%.8x%.4x",
ntohl(data0), ntohs(data1),
ntohs(data2), ntohs(data3),
ntohl(data4), ntohs(data5));
if (err < 0)
return NULL;
return str;
}
static struct {
const char *name;
uint16_t class;
} bt_services[] = {
{ "pbap", PBAP_SVCLASS_ID },
{ "sap", SAP_SVCLASS_ID },
{ "ftp", OBEX_FILETRANS_SVCLASS_ID },
{ "bpp", BASIC_PRINTING_SVCLASS_ID },
{ "bip", IMAGING_SVCLASS_ID },
{ "synch", IRMC_SYNC_SVCLASS_ID },
{ "dun", DIALUP_NET_SVCLASS_ID },
{ "opp", OBEX_OBJPUSH_SVCLASS_ID },
{ "fax", FAX_SVCLASS_ID },
{ "spp", SERIAL_PORT_SVCLASS_ID },
{ "hsp", HEADSET_SVCLASS_ID },
{ "hsp-hs", HEADSET_SVCLASS_ID },
{ "hsp-ag", HEADSET_AGW_SVCLASS_ID },
{ "hfp", HANDSFREE_SVCLASS_ID },
{ "hfp-hf", HANDSFREE_SVCLASS_ID },
{ "hfp-ag", HANDSFREE_AGW_SVCLASS_ID },
{ "pbap-pce", PBAP_PCE_SVCLASS_ID },
{ "pbap-pse", PBAP_PSE_SVCLASS_ID },
{ "map-mse", MAP_MSE_SVCLASS_ID },
{ "map-mas", MAP_MSE_SVCLASS_ID },
{ "map-mce", MAP_MCE_SVCLASS_ID },
{ "map-mns", MAP_MCE_SVCLASS_ID },
{ "gnss", GNSS_SERVER_SVCLASS_ID },
{ }
};
static uint16_t name2class(const char *pattern)
{
int i;
for (i = 0; bt_services[i].name; i++) {
if (strcasecmp(bt_services[i].name, pattern) == 0)
return bt_services[i].class;
}
return 0;
}
static inline bool is_uuid128(const char *string)
{
return (strlen(string) == 36 &&
string[8] == '-' &&
string[13] == '-' &&
string[18] == '-' &&
string[23] == '-');
}
static int string2uuid16(uuid_t *uuid, const char *string)
{
int length = strlen(string);
char *endptr = NULL;
uint16_t u16;
if (length != 4 && length != 6)
return -EINVAL;
u16 = strtol(string, &endptr, 16);
if (endptr && *endptr == '\0') {
sdp_uuid16_create(uuid, u16);
return 0;
}
return -EINVAL;
}
char *bt_name2string(const char *pattern)
{
uuid_t uuid;
uint16_t uuid16;
int i;
/* UUID 128 string format */
if (is_uuid128(pattern))
return strdup(pattern);
/* Friendly service name format */
uuid16 = name2class(pattern);
if (uuid16)
goto proceed;
/* HEX format */
uuid16 = strtol(pattern, NULL, 16);
for (i = 0; bt_services[i].class; i++) {
if (bt_services[i].class == uuid16)
goto proceed;
}
return NULL;
proceed:
sdp_uuid16_create(&uuid, uuid16);
return bt_uuid2string(&uuid);
}
int bt_string2uuid(uuid_t *uuid, const char *string)
{
uint32_t data0, data4;
uint16_t data1, data2, data3, data5;
if (is_uuid128(string) &&
sscanf(string, "%08x-%04hx-%04hx-%04hx-%08x%04hx",
&data0, &data1, &data2, &data3, &data4, &data5) == 6) {
uint8_t val[16];
data0 = htonl(data0);
data1 = htons(data1);
data2 = htons(data2);
data3 = htons(data3);
data4 = htonl(data4);
data5 = htons(data5);
memcpy(&val[0], &data0, 4);
memcpy(&val[4], &data1, 2);
memcpy(&val[6], &data2, 2);
memcpy(&val[8], &data3, 2);
memcpy(&val[10], &data4, 4);
memcpy(&val[14], &data5, 2);
sdp_uuid128_create(uuid, val);
return 0;
} else {
uint16_t class = name2class(string);
if (class) {
sdp_uuid16_create(uuid, class);
return 0;
}
return string2uuid16(uuid, string);
}
}
|
