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
|
/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2004-2007 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 <errno.h>
#include <unistd.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <net/if.h>
#include <linux/sockios.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/l2cap.h>
#include <bluetooth/bnep.h>
#include "bridge.h"
#include "common.h"
static int bridge_socket = -1;
static const char *gn_bridge;
static const char *nap_bridge;
int bridge_init(const char *gn_iface, const char *nap_iface)
{
#if 0
struct stat st;
if (stat("/sys/module/bridge", &st) < 0)
return -EOPNOTSUPP;
#endif
bridge_socket = socket(AF_INET, SOCK_STREAM, 0);
if (bridge_socket < 0)
return -errno;
gn_bridge = gn_iface;
nap_bridge = nap_iface;
return 0;
}
void bridge_cleanup(void)
{
close(bridge_socket);
bridge_socket = -1;
}
int bridge_create(int id)
{
int err;
const char *name = bridge_get_name(id);
err = ioctl(bridge_socket, SIOCBRADDBR, name);
if (err < 0)
return -errno;
return 0;
}
int bridge_remove(int id)
{
int err;
const char *name = bridge_get_name(id);
err = bnep_if_down(name);
if (err < 0)
return err;
err = ioctl(bridge_socket, SIOCBRDELBR, name);
if (err < 0)
return -errno;
return 0;
}
int bridge_add_interface(int id, const char *dev)
{
struct ifreq ifr;
int err;
int ifindex = if_nametoindex(dev);
const char *name = bridge_get_name(id);
if (!name)
return -EINVAL;
if (ifindex == 0)
return -ENODEV;
strncpy(ifr.ifr_name, name, IFNAMSIZ);
ifr.ifr_ifindex = ifindex;
err = ioctl(bridge_socket, SIOCBRADDIF, &ifr);
if (err < 0)
return err;
err = bnep_if_up(name, id);
if (err < 0)
return err;
return 0;
}
const char *bridge_get_name(int id)
{
if (id == BNEP_SVC_GN)
return gn_bridge;
if (id == BNEP_SVC_NAP)
return nap_bridge;
return NULL;
}
|
