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
|
/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2005-2006 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 <signal.h>
#include "dbus.h"
#include "logging.h"
#include <dbus/dbus.h>
#define INPUT_PATH "/org/bluez/input"
static int started = 0;
static DBusConnection *connection = NULL;
static DBusHandlerResult start_message(DBusConnection *conn,
DBusMessage *msg, void *data)
{
DBusMessage *reply;
info("Starting input service");
reply = dbus_message_new_method_return(msg);
if (!reply) {
error("Can't create reply message");
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
dbus_connection_send(conn, reply, NULL);
dbus_message_unref(reply);
started = 1;
return DBUS_HANDLER_RESULT_HANDLED;
}
static DBusHandlerResult stop_message(DBusConnection *conn,
DBusMessage *msg, void *data)
{
DBusMessage *reply;
info("Stopping input service");
reply = dbus_message_new_method_return(msg);
if (!reply) {
error("Can't create reply message");
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
dbus_connection_send(conn, reply, NULL);
dbus_message_unref(reply);
started = 0;
return DBUS_HANDLER_RESULT_HANDLED;
}
static DBusHandlerResult release_message(DBusConnection *conn,
DBusMessage *msg, void *data)
{
DBusMessage *reply;
reply = dbus_message_new_method_return(msg);
if (!reply) {
error("Can't create reply message");
return DBUS_HANDLER_RESULT_NEED_MEMORY;
}
dbus_connection_send(conn, reply, NULL);
dbus_message_unref(reply);
info("Got Release method. Exiting.");
raise(SIGTERM);
return DBUS_HANDLER_RESULT_HANDLED;
}
static DBusHandlerResult input_message(DBusConnection *conn,
DBusMessage *msg, void *data)
{
if (dbus_message_is_method_call(msg, "org.bluez.ServiceAgent", "Start"))
return start_message(conn, msg, data);
if (dbus_message_is_method_call(msg, "org.bluez.ServiceAgent", "Stop"))
return stop_message(conn, msg, data);
if (dbus_message_is_method_call(msg, "org.bluez.ServiceAgent", "Release"))
return release_message(conn, msg, data);
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
static const DBusObjectPathVTable input_table = {
.message_function = input_message,
};
int input_dbus_init(void)
{
DBusError err;
DBusMessage *msg, *reply;
const char *name = "Input service";
const char *description = "A service for input devices";
const char *input_path = INPUT_PATH;
connection = init_dbus(NULL, NULL, NULL);
if (!connection)
return -1;
dbus_error_init(&err);
if (!dbus_connection_register_object_path(connection, input_path,
&input_table, NULL)) {
error("D-Bus failed to register %s path", INPUT_PATH);
return -1;
}
msg = dbus_message_new_method_call("org.bluez", "/org/bluez",
"org.bluez.Manager", "RegisterService");
if (!msg) {
error("Can't allocate new method call");
return -1;
}
dbus_message_append_args(msg, DBUS_TYPE_STRING, &input_path,
DBUS_TYPE_STRING, &name,
DBUS_TYPE_STRING, &description,
DBUS_TYPE_INVALID);
dbus_error_init(&err);
reply = dbus_connection_send_with_reply_and_block(connection, msg, -1,
&err);
dbus_message_unref(msg);
if (!reply) {
error("Can't register service agent");
if (dbus_error_is_set(&err)) {
error("%s", err.message);
dbus_error_free(&err);
}
return -1;
}
dbus_message_unref(reply);
return 0;
}
|
