summaryrefslogtreecommitdiff
path: root/src/bluez-manager/nm-bluez-manager.c
blob: 59849d3bd5dd2be6a2358ceb08ab45e78053fe0a (plain)
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
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* NetworkManager -- Network link manager
 *
 * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Copyright (C) 2007 - 2008 Novell, Inc.
 * Copyright (C) 2007 - 2010 Red Hat, Inc.
 */

#include <signal.h>
#include <string.h>
#include <stdlib.h>
#include <dbus/dbus-glib.h>

#include "nm-logging.h"
#include "nm-dbus-glib-types.h"
#include "nm-marshal.h"
#include "nm-bluez-manager.h"
#include "nm-bluez-adapter.h"
#include "nm-dbus-manager.h"
#include "nm-bluez-common.h"


typedef struct {
	NMDBusManager *dbus_mgr;
	gulong name_owner_changed_id;

	DBusGProxy *proxy;

	NMBluezAdapter *adapter;
} NMBluezManagerPrivate;

#define NM_BLUEZ_MANAGER_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_BLUEZ_MANAGER, NMBluezManagerPrivate))

G_DEFINE_TYPE (NMBluezManager, nm_bluez_manager, G_TYPE_OBJECT)

enum {
	BDADDR_ADDED,
	BDADDR_REMOVED,

	LAST_SIGNAL
};

static guint signals[LAST_SIGNAL] = { 0 };

static void

emit_bdaddr_added (NMBluezManager *self, NMBluezDevice *device)
{
	g_signal_emit (self, signals[BDADDR_ADDED], 0,
	               nm_bluez_device_get_address (device),
	               nm_bluez_device_get_name (device),
	               nm_bluez_device_get_path (device),
	               nm_bluez_device_get_capabilities (device));
}

void
nm_bluez_manager_query_devices (NMBluezManager *self)
{
	NMBluezManagerPrivate *priv = NM_BLUEZ_MANAGER_GET_PRIVATE (self);
	GSList *devices, *iter;

	if (!priv->adapter)
		return;

	devices = nm_bluez_adapter_get_devices (priv->adapter);
	for (iter = devices; iter; iter = g_slist_next (iter))
		emit_bdaddr_added (self, NM_BLUEZ_DEVICE (iter->data));
	g_slist_free (devices);
}

static void
device_added (NMBluezAdapter *adapter, NMBluezDevice *device, gpointer user_data)
{
	emit_bdaddr_added (NM_BLUEZ_MANAGER (user_data), device);
}

static void
device_removed (NMBluezAdapter *adapter, NMBluezDevice *device, gpointer user_data)
{
	NMBluezManager *self = NM_BLUEZ_MANAGER (user_data);

	g_signal_emit (self, signals[BDADDR_REMOVED], 0,
	               nm_bluez_device_get_address (device),
	               nm_bluez_device_get_path (device));
}

static void
adapter_initialized (NMBluezAdapter *adapter, gboolean success, gpointer user_data)
{
	NMBluezManager *self = NM_BLUEZ_MANAGER (user_data);
	NMBluezManagerPrivate *priv = NM_BLUEZ_MANAGER_GET_PRIVATE (self);

	if (success) {
		GSList *devices, *iter;

		devices = nm_bluez_adapter_get_devices (adapter);
		for (iter = devices; iter; iter = g_slist_next (iter))
			emit_bdaddr_added (self, NM_BLUEZ_DEVICE (iter->data));
		g_slist_free (devices);

		g_signal_connect (adapter, "device-added", G_CALLBACK (device_added), self);
		g_signal_connect (adapter, "device-removed", G_CALLBACK (device_removed), self);
	} else {
		g_object_unref (priv->adapter);
		priv->adapter = NULL;
	}
}

static void
adapter_removed (DBusGProxy *proxy, const char *path, NMBluezManager *self)
{
	NMBluezManagerPrivate *priv = NM_BLUEZ_MANAGER_GET_PRIVATE (self);

	if (priv->adapter && !strcmp (path, nm_bluez_adapter_get_path (priv->adapter))) {
		if (nm_bluez_adapter_get_initialized (priv->adapter)) {
			GSList *devices, *iter;

			devices = nm_bluez_adapter_get_devices (priv->adapter);
			for (iter = devices; iter; iter = g_slist_next (iter)) {
				NMBluezDevice *device = NM_BLUEZ_DEVICE (iter->data);

				g_signal_emit (self, signals[BDADDR_REMOVED], 0,
				               nm_bluez_device_get_address (device),
				               nm_bluez_device_get_path (device));
			}
			g_slist_free (devices);
		}

		g_object_unref (priv->adapter);
		priv->adapter = NULL;
	}
}

static void
default_adapter_changed (DBusGProxy *proxy, const char *path, NMBluezManager *self)
{
	NMBluezManagerPrivate *priv = NM_BLUEZ_MANAGER_GET_PRIVATE (self);
	const char *cur_path = NULL;

	if (priv->adapter)
		cur_path = nm_bluez_adapter_get_path (priv->adapter);

	if (cur_path) {
		if (!path || strcmp (path, cur_path)) {
			/* Default adapter changed */
			adapter_removed (priv->proxy, cur_path, self);
		} else {
			/* This adapter is already the default */
			return;
		}
	}

	/* Add the new default adapter */
	if (path) {
		priv->adapter = nm_bluez_adapter_new (path);
		g_signal_connect (priv->adapter, "initialized", G_CALLBACK (adapter_initialized), self);
	}
}

static void
default_adapter_cb (DBusGProxy *proxy, DBusGProxyCall *call, gpointer user_data)
{
	NMBluezManager *self = NM_BLUEZ_MANAGER (user_data);
	NMBluezManagerPrivate *priv = NM_BLUEZ_MANAGER_GET_PRIVATE (self);
	const char *default_adapter = NULL;
	GError *err = NULL;

	if (!dbus_g_proxy_end_call (proxy, call, &err,
	                            DBUS_TYPE_G_OBJECT_PATH, &default_adapter,
	                            G_TYPE_INVALID)) {
		nm_log_warn (LOGD_BT, "bluez error getting default adapter: %s",
		             err && err->message ? err->message : "(unknown)");
		g_error_free (err);
		return;
	}

	default_adapter_changed (priv->proxy, default_adapter, self);
}

static void
query_default_adapter (NMBluezManager *self)
{
	NMBluezManagerPrivate *priv = NM_BLUEZ_MANAGER_GET_PRIVATE (self);
	DBusGProxyCall *call;

	call = dbus_g_proxy_begin_call (priv->proxy, "DefaultAdapter",
	                                default_adapter_cb,
	                                self,
	                                NULL, G_TYPE_INVALID);
	if (!call)
		nm_log_warn (LOGD_BT, "failed to request default Bluetooth adapter.");
}

static void
bluez_connect (NMBluezManager *self)
{
	NMBluezManagerPrivate *priv = NM_BLUEZ_MANAGER_GET_PRIVATE (self);
	DBusGConnection *connection;

	g_return_if_fail (priv->proxy == NULL);

	connection = nm_dbus_manager_get_connection (priv->dbus_mgr);
	if (!connection)
		return;

	priv->proxy = dbus_g_proxy_new_for_name (connection,
	                                         BLUEZ_SERVICE,
	                                         BLUEZ_MANAGER_PATH,
	                                         BLUEZ_MANAGER_INTERFACE);

	dbus_g_proxy_add_signal (priv->proxy, "AdapterRemoved",
	                         DBUS_TYPE_G_OBJECT_PATH, G_TYPE_INVALID);
	dbus_g_proxy_connect_signal (priv->proxy, "AdapterRemoved",
	                             G_CALLBACK (adapter_removed), self, NULL);

	dbus_g_proxy_add_signal (priv->proxy, "DefaultAdapterChanged",
	                         DBUS_TYPE_G_OBJECT_PATH, G_TYPE_INVALID);
	dbus_g_proxy_connect_signal (priv->proxy, "DefaultAdapterChanged",
	                             G_CALLBACK (default_adapter_changed), self, NULL);

	query_default_adapter (self);
}

static void
remove_all_devices (NMBluezManager *self, gboolean do_signal)
{
	/* FIXME: do something */
}

static void
name_owner_changed_cb (NMDBusManager *dbus_mgr,
                       const char *name,
                       const char *old_owner,
                       const char *new_owner,
                       gpointer user_data)
{
	NMBluezManager *self = NM_BLUEZ_MANAGER (user_data);
	gboolean old_owner_good = (old_owner && strlen (old_owner));
	gboolean new_owner_good = (new_owner && strlen (new_owner));

	/* Can't handle the signal if its not from the Bluez */
	if (strcmp (BLUEZ_SERVICE, name))
		return;

	if (!old_owner_good && new_owner_good)
		query_default_adapter (self);
	else if (old_owner_good && !new_owner_good)
		remove_all_devices (self, TRUE);
}

static void
bluez_cleanup (NMBluezManager *self, gboolean do_signal)
{
	NMBluezManagerPrivate *priv = NM_BLUEZ_MANAGER_GET_PRIVATE (self);

	if (priv->proxy) {
		g_object_unref (priv->proxy);
		priv->proxy = NULL;
	}

	remove_all_devices (self, do_signal);
}

static void
dbus_connection_changed_cb (NMDBusManager *dbus_mgr,
                            DBusGConnection *connection,
                            gpointer user_data)
{
	NMBluezManager *self = NM_BLUEZ_MANAGER (user_data);

	if (!connection)
		bluez_cleanup (self, TRUE);
	else
		bluez_connect (self);
}


NMBluezManager *
nm_bluez_manager_new (void)
{
	return NM_BLUEZ_MANAGER (g_object_new (NM_TYPE_BLUEZ_MANAGER, NULL));
}

NMBluezManager *
nm_bluez_manager_get (void)
{
	static NMBluezManager *singleton = NULL;

	if (!singleton)
		singleton = nm_bluez_manager_new ();
	else
		g_object_ref (singleton);

	g_assert (singleton);
	return singleton;
}

static void
nm_bluez_manager_init (NMBluezManager *self)
{
	NMBluezManagerPrivate *priv = NM_BLUEZ_MANAGER_GET_PRIVATE (self);

	priv->dbus_mgr = nm_dbus_manager_get ();
	g_assert (priv->dbus_mgr);

	g_signal_connect (priv->dbus_mgr,
	                  "name-owner-changed",
	                  G_CALLBACK (name_owner_changed_cb),
	                  self);

	g_signal_connect (priv->dbus_mgr,
	                  "dbus-connection-changed",
	                  G_CALLBACK (dbus_connection_changed_cb),
	                  self);

	bluez_connect (self);
}

static void
finalize (GObject *object)
{
	NMBluezManager *self = NM_BLUEZ_MANAGER (object);

	bluez_cleanup (self, FALSE);

	G_OBJECT_CLASS (nm_bluez_manager_parent_class)->finalize (object);
}

static void
nm_bluez_manager_class_init (NMBluezManagerClass *klass)
{
	GObjectClass *object_class = G_OBJECT_CLASS (klass);

	g_type_class_add_private (klass, sizeof (NMBluezManagerPrivate));

	/* virtual methods */
	object_class->finalize = finalize;

	/* Signals */
	signals[BDADDR_ADDED] =
		g_signal_new ("bdaddr-added",
		              G_OBJECT_CLASS_TYPE (object_class),
		              G_SIGNAL_RUN_FIRST,
		              G_STRUCT_OFFSET (NMBluezManagerClass, bdaddr_added),
		              NULL, NULL,
		              _nm_marshal_VOID__STRING_STRING_STRING_UINT,
		              G_TYPE_NONE, 4, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_UINT);

	signals[BDADDR_REMOVED] =
		g_signal_new ("bdaddr-removed",
		              G_OBJECT_CLASS_TYPE (object_class),
		              G_SIGNAL_RUN_FIRST,
		              G_STRUCT_OFFSET (NMBluezManagerClass, bdaddr_removed),
		              NULL, NULL,
		              _nm_marshal_VOID__STRING_STRING,
		              G_TYPE_NONE, 2, G_TYPE_STRING, G_TYPE_STRING);
}