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
|
/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2004-2006 Marcel Holtmann <marcel@holtmann.org>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <syslog.h>
#include <sys/socket.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/l2cap.h>
#include <bluetooth/sdp.h>
#include <netinet/in.h>
#include "glib-ectomy.h"
#include "sdp.h"
struct session {
uint16_t omtu;
uint16_t imtu;
};
static void session_destory(gpointer data)
{
struct session *session_data = data;
syslog(LOG_DEBUG, "Cleanup of SDP session");
if (session_data)
free(session_data);
}
static gboolean session_event(GIOChannel *chan, GIOCondition cond, gpointer data)
{
unsigned char buf[672], *ptr = buf;
sdp_pdu_hdr_t *hdr;
gsize len;
GIOError err;
int sk;
if (cond & (G_IO_HUP | G_IO_ERR))
return FALSE;
syslog(LOG_DEBUG, "Incoming SDP transaction");
err = g_io_channel_read(chan, (gchar *) buf, sizeof(buf), &len);
if (err == G_IO_ERROR_AGAIN)
return TRUE;
hdr = (sdp_pdu_hdr_t *) ptr;
hdr->pdu_id = SDP_ERROR_RSP;
hdr->plen = htons(2);
memset(ptr + 5, 0, 2);
sk = g_io_channel_unix_get_fd(chan);
write(sk, ptr, 7);
return TRUE;
}
static gboolean connect_event(GIOChannel *chan, GIOCondition cond, gpointer data)
{
GIOChannel *io;
struct session *session_data;
struct sockaddr_l2 addr;
struct l2cap_options opts;
socklen_t optlen;
int sk, nsk;
syslog(LOG_DEBUG, "Incoming SDP connection");
sk = g_io_channel_unix_get_fd(chan);
memset(&addr, 0, sizeof(addr));
optlen = sizeof(addr);
nsk = accept(sk, (struct sockaddr *) &addr, &optlen);
if (nsk < 0) {
syslog(LOG_ERR, "Can't accept L2CAP connection: %s (%d)",
strerror(errno), errno);
return TRUE;
}
memset(&opts, 0, sizeof(opts));
optlen = sizeof(opts);
if (getsockopt(sk, SOL_L2CAP, L2CAP_OPTIONS, &opts, &optlen) < 0) {
syslog(LOG_ERR, "Can't get L2CAP options: %s (%d)",
strerror(errno), errno);
close(nsk);
return TRUE;
}
session_data = malloc(sizeof(*session_data));
if (!session_data) {
close(nsk);
return TRUE;
}
memset(session_data, 0, sizeof(*session_data));
session_data->omtu = opts.omtu;
session_data->imtu = opts.imtu;
io = g_io_channel_unix_new(nsk);
g_io_add_watch_full(io, 0, G_IO_IN, session_event,
session_data, session_destory);
return TRUE;
}
int start_sdp_server(void)
{
GIOChannel *io;
struct sockaddr_l2 addr;
int sk;
syslog(LOG_INFO, "Starting SDP server");
sk = socket(PF_BLUETOOTH, SOCK_SEQPACKET, BTPROTO_L2CAP);
if (sk < 0) {
syslog(LOG_ERR, "Can't open L2CAP socket: %s (%d)",
strerror(errno), errno);
return -errno;
}
memset(&addr, 0, sizeof(addr));
addr.l2_family = AF_BLUETOOTH;
bacpy(&addr.l2_bdaddr, BDADDR_ANY);
addr.l2_psm = htobs(1);
if (bind(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
syslog(LOG_ERR, "Can't bind L2CAP socket: %s (%d)",
strerror(errno), errno);
return -errno;
}
listen(sk, 5);
io = g_io_channel_unix_new(sk);
g_io_add_watch(io, G_IO_IN, connect_event, NULL);
return 0;
}
void stop_sdp_server(void)
{
syslog(LOG_INFO, "Stopping SDP server");
}
|
