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[pulseaudio] / src / modules / bluetooth / bluez5-util.c
1 /***
2 This file is part of PulseAudio.
3
4 Copyright 2008-2013 João Paulo Rechi Vita
5
6 PulseAudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as
8 published by the Free Software Foundation; either version 2.1 of the
9 License, or (at your option) any later version.
10
11 PulseAudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with PulseAudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19 USA.
20 ***/
21
22 #ifdef HAVE_CONFIG_H
23 #include <config.h>
24 #endif
25
26 #include <pulse/xmalloc.h>
27
28 #include <pulsecore/core.h>
29 #include <pulsecore/core-util.h>
30 #include <pulsecore/dbus-shared.h>
31 #include <pulsecore/log.h>
32 #include <pulsecore/macro.h>
33 #include <pulsecore/refcnt.h>
34 #include <pulsecore/shared.h>
35
36 #include "a2dp-codecs.h"
37
38 #include "bluez5-util.h"
39
40 #define BLUEZ_SERVICE "org.bluez"
41 #define BLUEZ_ADAPTER_INTERFACE BLUEZ_SERVICE ".Adapter1"
42 #define BLUEZ_DEVICE_INTERFACE BLUEZ_SERVICE ".Device1"
43 #define BLUEZ_MEDIA_INTERFACE BLUEZ_SERVICE ".Media1"
44 #define BLUEZ_MEDIA_ENDPOINT_INTERFACE BLUEZ_SERVICE ".MediaEndpoint1"
45 #define BLUEZ_MEDIA_TRANSPORT_INTERFACE BLUEZ_SERVICE ".MediaTransport1"
46
47 #define BLUEZ_ERROR_NOT_SUPPORTED "org.bluez.Error.NotSupported"
48
49 #define A2DP_SOURCE_ENDPOINT "/MediaEndpoint/A2DPSource"
50 #define A2DP_SINK_ENDPOINT "/MediaEndpoint/A2DPSink"
51
52 #define ENDPOINT_INTROSPECT_XML \
53 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
54 "<node>" \
55 " <interface name=\"" BLUEZ_MEDIA_ENDPOINT_INTERFACE "\">" \
56 " <method name=\"SetConfiguration\">" \
57 " <arg name=\"transport\" direction=\"in\" type=\"o\"/>" \
58 " <arg name=\"properties\" direction=\"in\" type=\"ay\"/>" \
59 " </method>" \
60 " <method name=\"SelectConfiguration\">" \
61 " <arg name=\"capabilities\" direction=\"in\" type=\"ay\"/>" \
62 " <arg name=\"configuration\" direction=\"out\" type=\"ay\"/>" \
63 " </method>" \
64 " <method name=\"ClearConfiguration\">" \
65 " <arg name=\"transport\" direction=\"in\" type=\"o\"/>" \
66 " </method>" \
67 " <method name=\"Release\">" \
68 " </method>" \
69 " </interface>" \
70 " <interface name=\"org.freedesktop.DBus.Introspectable\">" \
71 " <method name=\"Introspect\">" \
72 " <arg name=\"data\" type=\"s\" direction=\"out\"/>" \
73 " </method>" \
74 " </interface>" \
75 "</node>"
76
77 struct pa_bluetooth_discovery {
78 PA_REFCNT_DECLARE;
79
80 pa_core *core;
81 pa_dbus_connection *connection;
82 bool filter_added;
83 bool matches_added;
84 bool objects_listed;
85 pa_hook hooks[PA_BLUETOOTH_HOOK_MAX];
86 pa_hashmap *adapters;
87 pa_hashmap *devices;
88 pa_hashmap *transports;
89
90 PA_LLIST_HEAD(pa_dbus_pending, pending);
91 };
92
93 static pa_dbus_pending* send_and_add_to_pending(pa_bluetooth_discovery *y, DBusMessage *m,
94 DBusPendingCallNotifyFunction func, void *call_data) {
95 pa_dbus_pending *p;
96 DBusPendingCall *call;
97
98 pa_assert(y);
99 pa_assert(m);
100
101 pa_assert_se(dbus_connection_send_with_reply(pa_dbus_connection_get(y->connection), m, &call, -1));
102
103 p = pa_dbus_pending_new(pa_dbus_connection_get(y->connection), m, call, y, call_data);
104 PA_LLIST_PREPEND(pa_dbus_pending, y->pending, p);
105 dbus_pending_call_set_notify(call, func, p, NULL);
106
107 return p;
108 }
109
110 static const char *check_variant_property(DBusMessageIter *i) {
111 const char *key;
112
113 pa_assert(i);
114
115 if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_STRING) {
116 pa_log_error("Property name not a string.");
117 return NULL;
118 }
119
120 dbus_message_iter_get_basic(i, &key);
121
122 if (!dbus_message_iter_next(i)) {
123 pa_log_error("Property value missing");
124 return NULL;
125 }
126
127 if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_VARIANT) {
128 pa_log_error("Property value not a variant.");
129 return NULL;
130 }
131
132 return key;
133 }
134
135 pa_bluetooth_transport *pa_bluetooth_transport_new(pa_bluetooth_device *d, const char *owner, const char *path,
136 pa_bluetooth_profile_t p, const uint8_t *config, size_t size) {
137 pa_bluetooth_transport *t;
138
139 t = pa_xnew0(pa_bluetooth_transport, 1);
140 t->device = d;
141 t->owner = pa_xstrdup(owner);
142 t->path = pa_xstrdup(path);
143 t->profile = p;
144 t->config_size = size;
145
146 if (size > 0) {
147 t->config = pa_xnew(uint8_t, size);
148 memcpy(t->config, config, size);
149 }
150
151 pa_assert_se(pa_hashmap_put(d->discovery->transports, t->path, t) >= 0);
152
153 return t;
154 }
155
156 static const char *transport_state_to_string(pa_bluetooth_transport_state_t state) {
157 switch(state) {
158 case PA_BLUETOOTH_TRANSPORT_STATE_DISCONNECTED:
159 return "disconnected";
160 case PA_BLUETOOTH_TRANSPORT_STATE_IDLE:
161 return "idle";
162 case PA_BLUETOOTH_TRANSPORT_STATE_PLAYING:
163 return "playing";
164 }
165
166 return "invalid";
167 }
168
169 static void transport_state_changed(pa_bluetooth_transport *t, pa_bluetooth_transport_state_t state) {
170 bool old_any_connected;
171
172 pa_assert(t);
173
174 if (t->state == state)
175 return;
176
177 old_any_connected = pa_bluetooth_device_any_transport_connected(t->device);
178
179 pa_log_debug("Transport %s state changed from %s to %s",
180 t->path, transport_state_to_string(t->state), transport_state_to_string(state));
181
182 t->state = state;
183 if (state == PA_BLUETOOTH_TRANSPORT_STATE_DISCONNECTED)
184 t->device->transports[t->profile] = NULL;
185
186 pa_hook_fire(&t->device->discovery->hooks[PA_BLUETOOTH_HOOK_TRANSPORT_STATE_CHANGED], t);
187
188 if (old_any_connected != pa_bluetooth_device_any_transport_connected(t->device))
189 pa_hook_fire(&t->device->discovery->hooks[PA_BLUETOOTH_HOOK_DEVICE_CONNECTION_CHANGED], t->device);
190 }
191
192 void pa_bluetooth_transport_put(pa_bluetooth_transport *t) {
193 transport_state_changed(t, PA_BLUETOOTH_TRANSPORT_STATE_IDLE);
194 }
195
196 void pa_bluetooth_transport_free(pa_bluetooth_transport *t) {
197 pa_assert(t);
198
199 pa_hashmap_remove(t->device->discovery->transports, t->path);
200 pa_xfree(t->owner);
201 pa_xfree(t->path);
202 pa_xfree(t->config);
203 pa_xfree(t);
204 }
205
206 static int bluez5_transport_acquire_cb(pa_bluetooth_transport *t, bool optional, size_t *imtu, size_t *omtu) {
207 DBusMessage *m, *r;
208 DBusError err;
209 int ret;
210 uint16_t i, o;
211 const char *method = optional ? "TryAcquire" : "Acquire";
212
213 pa_assert(t);
214 pa_assert(t->device);
215 pa_assert(t->device->discovery);
216
217 pa_assert_se(m = dbus_message_new_method_call(t->owner, t->path, BLUEZ_MEDIA_TRANSPORT_INTERFACE, method));
218
219 dbus_error_init(&err);
220
221 r = dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(t->device->discovery->connection), m, -1, &err);
222 if (!r) {
223 if (optional && pa_streq(err.name, "org.bluez.Error.NotAvailable"))
224 pa_log_info("Failed optional acquire of unavailable transport %s", t->path);
225 else
226 pa_log_error("Transport %s() failed for transport %s (%s)", method, t->path, err.message);
227
228 dbus_error_free(&err);
229 return -1;
230 }
231
232 if (!dbus_message_get_args(r, &err, DBUS_TYPE_UNIX_FD, &ret, DBUS_TYPE_UINT16, &i, DBUS_TYPE_UINT16, &o,
233 DBUS_TYPE_INVALID)) {
234 pa_log_error("Failed to parse %s() reply: %s", method, err.message);
235 dbus_error_free(&err);
236 ret = -1;
237 goto finish;
238 }
239
240 if (imtu)
241 *imtu = i;
242
243 if (omtu)
244 *omtu = o;
245
246 finish:
247 dbus_message_unref(r);
248 return ret;
249 }
250
251 static void bluez5_transport_release_cb(pa_bluetooth_transport *t) {
252 DBusMessage *m;
253 DBusError err;
254
255 pa_assert(t);
256 pa_assert(t->device);
257 pa_assert(t->device->discovery);
258
259 dbus_error_init(&err);
260
261 if (t->state <= PA_BLUETOOTH_TRANSPORT_STATE_IDLE) {
262 pa_log_info("Transport %s auto-released by BlueZ or already released", t->path);
263 return;
264 }
265
266 pa_assert_se(m = dbus_message_new_method_call(t->owner, t->path, BLUEZ_MEDIA_TRANSPORT_INTERFACE, "Release"));
267 dbus_connection_send_with_reply_and_block(pa_dbus_connection_get(t->device->discovery->connection), m, -1, &err);
268
269 if (dbus_error_is_set(&err)) {
270 pa_log_error("Failed to release transport %s: %s", t->path, err.message);
271 dbus_error_free(&err);
272 } else
273 pa_log_info("Transport %s released", t->path);
274 }
275
276 bool pa_bluetooth_device_any_transport_connected(const pa_bluetooth_device *d) {
277 unsigned i;
278
279 pa_assert(d);
280
281 if (d->device_info_valid != 1)
282 return false;
283
284 for (i = 0; i < PA_BLUETOOTH_PROFILE_COUNT; i++)
285 if (d->transports[i] && d->transports[i]->state != PA_BLUETOOTH_TRANSPORT_STATE_DISCONNECTED)
286 return true;
287
288 return false;
289 }
290
291 static int transport_state_from_string(const char* value, pa_bluetooth_transport_state_t *state) {
292 pa_assert(value);
293 pa_assert(state);
294
295 if (pa_streq(value, "idle"))
296 *state = PA_BLUETOOTH_TRANSPORT_STATE_IDLE;
297 else if (pa_streq(value, "pending") || pa_streq(value, "active"))
298 *state = PA_BLUETOOTH_TRANSPORT_STATE_PLAYING;
299 else
300 return -1;
301
302 return 0;
303 }
304
305 static void parse_transport_property(pa_bluetooth_transport *t, DBusMessageIter *i) {
306 const char *key;
307 DBusMessageIter variant_i;
308
309 key = check_variant_property(i);
310 if (key == NULL)
311 return;
312
313 dbus_message_iter_recurse(i, &variant_i);
314
315 switch (dbus_message_iter_get_arg_type(&variant_i)) {
316
317 case DBUS_TYPE_STRING: {
318
319 const char *value;
320 dbus_message_iter_get_basic(&variant_i, &value);
321
322 if (pa_streq(key, "State")) {
323 pa_bluetooth_transport_state_t state;
324
325 if (transport_state_from_string(value, &state) < 0) {
326 pa_log_error("Invalid state received: %s", value);
327 return;
328 }
329
330 transport_state_changed(t, state);
331 }
332
333 break;
334 }
335 }
336
337 return;
338 }
339
340 static int parse_transport_properties(pa_bluetooth_transport *t, DBusMessageIter *i) {
341 DBusMessageIter element_i;
342
343 dbus_message_iter_recurse(i, &element_i);
344
345 while (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
346 DBusMessageIter dict_i;
347
348 dbus_message_iter_recurse(&element_i, &dict_i);
349
350 parse_transport_property(t, &dict_i);
351
352 dbus_message_iter_next(&element_i);
353 }
354
355 return 0;
356 }
357
358 static pa_bluetooth_device* device_create(pa_bluetooth_discovery *y, const char *path) {
359 pa_bluetooth_device *d;
360
361 pa_assert(y);
362 pa_assert(path);
363
364 d = pa_xnew0(pa_bluetooth_device, 1);
365 d->discovery = y;
366 d->path = pa_xstrdup(path);
367 d->uuids = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL, pa_xfree);
368
369 pa_hashmap_put(y->devices, d->path, d);
370
371 return d;
372 }
373
374 pa_bluetooth_device* pa_bluetooth_discovery_get_device_by_path(pa_bluetooth_discovery *y, const char *path) {
375 pa_bluetooth_device *d;
376
377 pa_assert(y);
378 pa_assert(PA_REFCNT_VALUE(y) > 0);
379 pa_assert(path);
380
381 if ((d = pa_hashmap_get(y->devices, path)))
382 if (d->device_info_valid == 1)
383 return d;
384
385 return NULL;
386 }
387
388 pa_bluetooth_device* pa_bluetooth_discovery_get_device_by_address(pa_bluetooth_discovery *y, const char *remote, const char *local) {
389 pa_bluetooth_device *d;
390 void *state = NULL;
391
392 pa_assert(y);
393 pa_assert(PA_REFCNT_VALUE(y) > 0);
394 pa_assert(remote);
395 pa_assert(local);
396
397 while ((d = pa_hashmap_iterate(y->devices, &state, NULL)))
398 if (d->device_info_valid == 1 && pa_streq(d->address, remote) && pa_streq(d->adapter->address, local))
399 return d;
400
401 return NULL;
402 }
403
404 static void device_free(pa_bluetooth_device *d) {
405 unsigned i;
406
407 pa_assert(d);
408
409 for (i = 0; i < PA_BLUETOOTH_PROFILE_COUNT; i++) {
410 pa_bluetooth_transport *t;
411
412 if (!(t = d->transports[i]))
413 continue;
414
415 transport_state_changed(t, PA_BLUETOOTH_TRANSPORT_STATE_DISCONNECTED);
416 pa_bluetooth_transport_free(t);
417 }
418
419 if (d->uuids)
420 pa_hashmap_free(d->uuids);
421
422 d->discovery = NULL;
423 d->adapter = NULL;
424 pa_xfree(d->path);
425 pa_xfree(d->alias);
426 pa_xfree(d->address);
427 pa_xfree(d->adapter_path);
428 pa_xfree(d);
429 }
430
431 static void device_remove(pa_bluetooth_discovery *y, const char *path) {
432 pa_bluetooth_device *d;
433
434 if (!(d = pa_hashmap_remove(y->devices, path)))
435 pa_log_warn("Unknown device removed %s", path);
436 else {
437 pa_log_debug("Device %s removed", path);
438 device_free(d);
439 }
440 }
441
442 static void set_device_info_valid(pa_bluetooth_device *device, int valid) {
443 bool old_any_connected;
444
445 pa_assert(device);
446 pa_assert(valid == -1 || valid == 0 || valid == 1);
447
448 if (valid == device->device_info_valid)
449 return;
450
451 old_any_connected = pa_bluetooth_device_any_transport_connected(device);
452 device->device_info_valid = valid;
453
454 if (pa_bluetooth_device_any_transport_connected(device) != old_any_connected)
455 pa_hook_fire(&device->discovery->hooks[PA_BLUETOOTH_HOOK_DEVICE_CONNECTION_CHANGED], device);
456 }
457
458 static pa_bluetooth_adapter* adapter_create(pa_bluetooth_discovery *y, const char *path) {
459 pa_bluetooth_adapter *a;
460
461 pa_assert(y);
462 pa_assert(path);
463
464 a = pa_xnew0(pa_bluetooth_adapter, 1);
465 a->discovery = y;
466 a->path = pa_xstrdup(path);
467
468 pa_hashmap_put(y->adapters, a->path, a);
469
470 return a;
471 }
472
473 static void adapter_free(pa_bluetooth_adapter *a) {
474 pa_bluetooth_device *d;
475 void *state;
476
477 pa_assert(a);
478 pa_assert(a->discovery);
479
480 PA_HASHMAP_FOREACH(d, a->discovery->devices, state)
481 if (d->adapter == a) {
482 set_device_info_valid(d, -1);
483 d->adapter = NULL;
484 }
485
486 pa_xfree(a->path);
487 pa_xfree(a->address);
488 pa_xfree(a);
489 }
490
491 static void adapter_remove(pa_bluetooth_discovery *y, const char *path) {
492 pa_bluetooth_adapter *a;
493
494 if (!(a = pa_hashmap_remove(y->adapters, path)))
495 pa_log_warn("Unknown adapter removed %s", path);
496 else {
497 pa_log_debug("Adapter %s removed", path);
498 adapter_free(a);
499 }
500 }
501
502 static void parse_device_property(pa_bluetooth_device *d, DBusMessageIter *i, bool is_property_change) {
503 const char *key;
504 DBusMessageIter variant_i;
505
506 pa_assert(d);
507
508 key = check_variant_property(i);
509 if (key == NULL) {
510 pa_log_error("Received invalid property for device %s", d->path);
511 return;
512 }
513
514 dbus_message_iter_recurse(i, &variant_i);
515
516 switch (dbus_message_iter_get_arg_type(&variant_i)) {
517
518 case DBUS_TYPE_STRING: {
519 const char *value;
520 dbus_message_iter_get_basic(&variant_i, &value);
521
522 if (pa_streq(key, "Alias")) {
523 pa_xfree(d->alias);
524 d->alias = pa_xstrdup(value);
525 pa_log_debug("%s: %s", key, value);
526 } else if (pa_streq(key, "Address")) {
527 if (is_property_change) {
528 pa_log_warn("Device property 'Address' expected to be constant but changed for %s, ignoring", d->path);
529 return;
530 }
531
532 if (d->address) {
533 pa_log_warn("Device %s: Received a duplicate 'Address' property, ignoring", d->path);
534 return;
535 }
536
537 d->address = pa_xstrdup(value);
538 pa_log_debug("%s: %s", key, value);
539 }
540
541 break;
542 }
543
544 case DBUS_TYPE_OBJECT_PATH: {
545 const char *value;
546 dbus_message_iter_get_basic(&variant_i, &value);
547
548 if (pa_streq(key, "Adapter")) {
549
550 if (is_property_change) {
551 pa_log_warn("Device property 'Adapter' expected to be constant but changed for %s, ignoring", d->path);
552 return;
553 }
554
555 if (d->adapter_path) {
556 pa_log_warn("Device %s: Received a duplicate 'Adapter' property, ignoring", d->path);
557 return;
558 }
559
560 d->adapter_path = pa_xstrdup(value);
561
562 d->adapter = pa_hashmap_get(d->discovery->adapters, value);
563 if (!d->adapter)
564 pa_log_info("Device %s: 'Adapter' property references an unknown adapter %s.", d->path, value);
565
566 pa_log_debug("%s: %s", key, value);
567 }
568
569 break;
570 }
571
572 case DBUS_TYPE_UINT32: {
573 uint32_t value;
574 dbus_message_iter_get_basic(&variant_i, &value);
575
576 if (pa_streq(key, "Class")) {
577 d->class_of_device = value;
578 pa_log_debug("%s: %d", key, value);
579 }
580
581 break;
582 }
583
584 case DBUS_TYPE_ARRAY: {
585 DBusMessageIter ai;
586 dbus_message_iter_recurse(&variant_i, &ai);
587
588 if (dbus_message_iter_get_arg_type(&ai) == DBUS_TYPE_STRING && pa_streq(key, "UUIDs")) {
589 /* bluetoothd never removes UUIDs from a device object so there
590 * is no need to handle it here. */
591 while (dbus_message_iter_get_arg_type(&ai) != DBUS_TYPE_INVALID) {
592 const char *value;
593 char *uuid;
594
595 dbus_message_iter_get_basic(&ai, &value);
596
597 if (pa_hashmap_get(d->uuids, value)) {
598 dbus_message_iter_next(&ai);
599 continue;
600 }
601
602 uuid = pa_xstrdup(value);
603 pa_hashmap_put(d->uuids, uuid, uuid);
604
605 pa_log_debug("%s: %s", key, value);
606 dbus_message_iter_next(&ai);
607 }
608 }
609
610 break;
611 }
612 }
613 }
614
615 static int parse_device_properties(pa_bluetooth_device *d, DBusMessageIter *i, bool is_property_change) {
616 DBusMessageIter element_i;
617
618 dbus_message_iter_recurse(i, &element_i);
619
620 while (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
621 DBusMessageIter dict_i;
622
623 dbus_message_iter_recurse(&element_i, &dict_i);
624 parse_device_property(d, &dict_i, is_property_change);
625 dbus_message_iter_next(&element_i);
626 }
627
628 if (!d->address || !d->adapter_path || !d->alias) {
629 pa_log_error("Non-optional information missing for device %s", d->path);
630 set_device_info_valid(d, -1);
631 return -1;
632 }
633
634 if (!is_property_change && d->adapter)
635 set_device_info_valid(d, 1);
636
637 /* If d->adapter is NULL, device_info_valid will be left as 0, and updated
638 * after all interfaces have been parsed. */
639
640 return 0;
641 }
642
643 static void parse_adapter_properties(pa_bluetooth_adapter *a, DBusMessageIter *i, bool is_property_change) {
644 DBusMessageIter element_i;
645
646 pa_assert(a);
647
648 dbus_message_iter_recurse(i, &element_i);
649
650 while (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
651 DBusMessageIter dict_i, variant_i;
652 const char *key;
653
654 dbus_message_iter_recurse(&element_i, &dict_i);
655
656 key = check_variant_property(&dict_i);
657 if (key == NULL) {
658 pa_log_error("Received invalid property for adapter %s", a->path);
659 return;
660 }
661
662 dbus_message_iter_recurse(&dict_i, &variant_i);
663
664 if (dbus_message_iter_get_arg_type(&variant_i) == DBUS_TYPE_STRING && pa_streq(key, "Address")) {
665 const char *value;
666
667 if (is_property_change) {
668 pa_log_warn("Adapter property 'Address' expected to be constant but changed for %s, ignoring", a->path);
669 return;
670 }
671
672 if (a->address) {
673 pa_log_warn("Adapter %s received a duplicate 'Address' property, ignoring", a->path);
674 return;
675 }
676
677 dbus_message_iter_get_basic(&variant_i, &value);
678 a->address = pa_xstrdup(value);
679 }
680
681 dbus_message_iter_next(&element_i);
682 }
683 }
684
685 static void register_endpoint_reply(DBusPendingCall *pending, void *userdata) {
686 DBusMessage *r;
687 pa_dbus_pending *p;
688 pa_bluetooth_discovery *y;
689 char *endpoint;
690
691 pa_assert(pending);
692 pa_assert_se(p = userdata);
693 pa_assert_se(y = p->context_data);
694 pa_assert_se(endpoint = p->call_data);
695 pa_assert_se(r = dbus_pending_call_steal_reply(pending));
696
697 if (dbus_message_is_error(r, BLUEZ_ERROR_NOT_SUPPORTED)) {
698 pa_log_info("Couldn't register endpoint %s because it is disabled in BlueZ", endpoint);
699 goto finish;
700 }
701
702 if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
703 pa_log_error(BLUEZ_MEDIA_INTERFACE ".RegisterEndpoint() failed: %s: %s", dbus_message_get_error_name(r),
704 pa_dbus_get_error_message(r));
705 goto finish;
706 }
707
708 finish:
709 dbus_message_unref(r);
710
711 PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
712 pa_dbus_pending_free(p);
713
714 pa_xfree(endpoint);
715 }
716
717 static void register_endpoint(pa_bluetooth_discovery *y, const char *path, const char *endpoint, const char *uuid) {
718 DBusMessage *m;
719 DBusMessageIter i, d;
720 uint8_t codec = 0;
721
722 pa_log_debug("Registering %s on adapter %s", endpoint, path);
723
724 pa_assert_se(m = dbus_message_new_method_call(BLUEZ_SERVICE, path, BLUEZ_MEDIA_INTERFACE, "RegisterEndpoint"));
725
726 dbus_message_iter_init_append(m, &i);
727 dbus_message_iter_append_basic(&i, DBUS_TYPE_OBJECT_PATH, &endpoint);
728 dbus_message_iter_open_container(&i, DBUS_TYPE_ARRAY, DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING DBUS_TYPE_STRING_AS_STRING
729 DBUS_TYPE_VARIANT_AS_STRING DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &d);
730 pa_dbus_append_basic_variant_dict_entry(&d, "UUID", DBUS_TYPE_STRING, &uuid);
731 pa_dbus_append_basic_variant_dict_entry(&d, "Codec", DBUS_TYPE_BYTE, &codec);
732
733 if (pa_streq(uuid, PA_BLUETOOTH_UUID_A2DP_SOURCE) || pa_streq(uuid, PA_BLUETOOTH_UUID_A2DP_SINK)) {
734 a2dp_sbc_t capabilities;
735
736 capabilities.channel_mode = SBC_CHANNEL_MODE_MONO | SBC_CHANNEL_MODE_DUAL_CHANNEL | SBC_CHANNEL_MODE_STEREO |
737 SBC_CHANNEL_MODE_JOINT_STEREO;
738 capabilities.frequency = SBC_SAMPLING_FREQ_16000 | SBC_SAMPLING_FREQ_32000 | SBC_SAMPLING_FREQ_44100 |
739 SBC_SAMPLING_FREQ_48000;
740 capabilities.allocation_method = SBC_ALLOCATION_SNR | SBC_ALLOCATION_LOUDNESS;
741 capabilities.subbands = SBC_SUBBANDS_4 | SBC_SUBBANDS_8;
742 capabilities.block_length = SBC_BLOCK_LENGTH_4 | SBC_BLOCK_LENGTH_8 | SBC_BLOCK_LENGTH_12 | SBC_BLOCK_LENGTH_16;
743 capabilities.min_bitpool = MIN_BITPOOL;
744 capabilities.max_bitpool = MAX_BITPOOL;
745
746 pa_dbus_append_basic_array_variant_dict_entry(&d, "Capabilities", DBUS_TYPE_BYTE, &capabilities, sizeof(capabilities));
747 }
748
749 dbus_message_iter_close_container(&i, &d);
750
751 send_and_add_to_pending(y, m, register_endpoint_reply, pa_xstrdup(endpoint));
752 }
753
754 static void parse_interfaces_and_properties(pa_bluetooth_discovery *y, DBusMessageIter *dict_i) {
755 DBusMessageIter element_i;
756 const char *path;
757 void *state;
758 pa_bluetooth_device *d;
759
760 pa_assert(dbus_message_iter_get_arg_type(dict_i) == DBUS_TYPE_OBJECT_PATH);
761 dbus_message_iter_get_basic(dict_i, &path);
762
763 pa_assert_se(dbus_message_iter_next(dict_i));
764 pa_assert(dbus_message_iter_get_arg_type(dict_i) == DBUS_TYPE_ARRAY);
765
766 dbus_message_iter_recurse(dict_i, &element_i);
767
768 while (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
769 DBusMessageIter iface_i;
770 const char *interface;
771
772 dbus_message_iter_recurse(&element_i, &iface_i);
773
774 pa_assert(dbus_message_iter_get_arg_type(&iface_i) == DBUS_TYPE_STRING);
775 dbus_message_iter_get_basic(&iface_i, &interface);
776
777 pa_assert_se(dbus_message_iter_next(&iface_i));
778 pa_assert(dbus_message_iter_get_arg_type(&iface_i) == DBUS_TYPE_ARRAY);
779
780 if (pa_streq(interface, BLUEZ_ADAPTER_INTERFACE)) {
781 pa_bluetooth_adapter *a;
782
783 if ((a = pa_hashmap_get(y->adapters, path))) {
784 pa_log_error("Found duplicated D-Bus path for device %s", path);
785 return;
786 } else
787 a = adapter_create(y, path);
788
789 pa_log_debug("Adapter %s found", path);
790
791 parse_adapter_properties(a, &iface_i, false);
792 if (!a->address)
793 return;
794
795 register_endpoint(y, path, A2DP_SOURCE_ENDPOINT, PA_BLUETOOTH_UUID_A2DP_SOURCE);
796 register_endpoint(y, path, A2DP_SINK_ENDPOINT, PA_BLUETOOTH_UUID_A2DP_SINK);
797
798 } else if (pa_streq(interface, BLUEZ_DEVICE_INTERFACE)) {
799
800 if ((d = pa_hashmap_get(y->devices, path))) {
801 if (d->device_info_valid != 0) {
802 pa_log_error("Found duplicated D-Bus path for device %s", path);
803 return;
804 }
805 } else
806 d = device_create(y, path);
807
808 pa_log_debug("Device %s found", d->path);
809
810 parse_device_properties(d, &iface_i, false);
811
812 } else
813 pa_log_debug("Unknown interface %s found, skipping", interface);
814
815 dbus_message_iter_next(&element_i);
816 }
817
818 PA_HASHMAP_FOREACH(d, y->devices, state) {
819 if (d->device_info_valid != 0)
820 continue;
821
822 if (!d->adapter && d->adapter_path) {
823 d->adapter = pa_hashmap_get(d->discovery->adapters, d->adapter_path);
824 if (!d->adapter || !d->adapter->address) {
825 pa_log_error("Device %s is child of nonexistent or corrupted adapter %s", d->path, d->adapter_path);
826 set_device_info_valid(d, -1);
827 } else
828 set_device_info_valid(d, 1);
829 }
830 }
831
832 return;
833 }
834
835 static void get_managed_objects_reply(DBusPendingCall *pending, void *userdata) {
836 pa_dbus_pending *p;
837 pa_bluetooth_discovery *y;
838 DBusMessage *r;
839 DBusMessageIter arg_i, element_i;
840
841 pa_assert_se(p = userdata);
842 pa_assert_se(y = p->context_data);
843 pa_assert_se(r = dbus_pending_call_steal_reply(pending));
844
845 if (dbus_message_is_error(r, DBUS_ERROR_UNKNOWN_METHOD)) {
846 pa_log_warn("BlueZ D-Bus ObjectManager not available");
847 goto finish;
848 }
849
850 if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
851 pa_log_error("GetManagedObjects() failed: %s: %s", dbus_message_get_error_name(r), pa_dbus_get_error_message(r));
852 goto finish;
853 }
854
855 if (!dbus_message_iter_init(r, &arg_i) || !pa_streq(dbus_message_get_signature(r), "a{oa{sa{sv}}}")) {
856 pa_log_error("Invalid reply signature for GetManagedObjects()");
857 goto finish;
858 }
859
860 dbus_message_iter_recurse(&arg_i, &element_i);
861 while (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
862 DBusMessageIter dict_i;
863
864 dbus_message_iter_recurse(&element_i, &dict_i);
865
866 parse_interfaces_and_properties(y, &dict_i);
867
868 dbus_message_iter_next(&element_i);
869 }
870
871 y->objects_listed = true;
872
873 finish:
874 dbus_message_unref(r);
875
876 PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
877 pa_dbus_pending_free(p);
878 }
879
880 static void get_managed_objects(pa_bluetooth_discovery *y) {
881 DBusMessage *m;
882
883 pa_assert(y);
884
885 pa_assert_se(m = dbus_message_new_method_call(BLUEZ_SERVICE, "/", "org.freedesktop.DBus.ObjectManager",
886 "GetManagedObjects"));
887 send_and_add_to_pending(y, m, get_managed_objects_reply, NULL);
888 }
889
890 pa_hook* pa_bluetooth_discovery_hook(pa_bluetooth_discovery *y, pa_bluetooth_hook_t hook) {
891 pa_assert(y);
892 pa_assert(PA_REFCNT_VALUE(y) > 0);
893
894 return &y->hooks[hook];
895 }
896
897 static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *userdata) {
898 pa_bluetooth_discovery *y;
899 DBusError err;
900
901 pa_assert(bus);
902 pa_assert(m);
903 pa_assert_se(y = userdata);
904
905 dbus_error_init(&err);
906
907 if (dbus_message_is_signal(m, "org.freedesktop.DBus", "NameOwnerChanged")) {
908 const char *name, *old_owner, *new_owner;
909
910 if (!dbus_message_get_args(m, &err,
911 DBUS_TYPE_STRING, &name,
912 DBUS_TYPE_STRING, &old_owner,
913 DBUS_TYPE_STRING, &new_owner,
914 DBUS_TYPE_INVALID)) {
915 pa_log_error("Failed to parse org.freedesktop.DBus.NameOwnerChanged: %s", err.message);
916 goto fail;
917 }
918
919 if (pa_streq(name, BLUEZ_SERVICE)) {
920 if (old_owner && *old_owner) {
921 pa_log_debug("Bluetooth daemon disappeared");
922 pa_hashmap_remove_all(y->devices);
923 pa_hashmap_remove_all(y->adapters);
924 y->objects_listed = false;
925 }
926
927 if (new_owner && *new_owner) {
928 pa_log_debug("Bluetooth daemon appeared");
929 get_managed_objects(y);
930 }
931 }
932
933 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
934 } else if (dbus_message_is_signal(m, "org.freedesktop.DBus.ObjectManager", "InterfacesAdded")) {
935 DBusMessageIter arg_i;
936
937 if (!y->objects_listed)
938 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; /* No reply received yet from GetManagedObjects */
939
940 if (!dbus_message_iter_init(m, &arg_i) || !pa_streq(dbus_message_get_signature(m), "oa{sa{sv}}")) {
941 pa_log_error("Invalid signature found in InterfacesAdded");
942 goto fail;
943 }
944
945 parse_interfaces_and_properties(y, &arg_i);
946
947 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
948 } else if (dbus_message_is_signal(m, "org.freedesktop.DBus.ObjectManager", "InterfacesRemoved")) {
949 const char *p;
950 DBusMessageIter arg_i;
951 DBusMessageIter element_i;
952
953 if (!y->objects_listed)
954 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; /* No reply received yet from GetManagedObjects */
955
956 if (!dbus_message_iter_init(m, &arg_i) || !pa_streq(dbus_message_get_signature(m), "oas")) {
957 pa_log_error("Invalid signature found in InterfacesRemoved");
958 goto fail;
959 }
960
961 dbus_message_iter_get_basic(&arg_i, &p);
962
963 pa_assert_se(dbus_message_iter_next(&arg_i));
964 pa_assert(dbus_message_iter_get_arg_type(&arg_i) == DBUS_TYPE_ARRAY);
965
966 dbus_message_iter_recurse(&arg_i, &element_i);
967
968 while (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_STRING) {
969 const char *iface;
970
971 dbus_message_iter_get_basic(&element_i, &iface);
972
973 if (pa_streq(iface, BLUEZ_DEVICE_INTERFACE))
974 device_remove(y, p);
975 else if (pa_streq(iface, BLUEZ_ADAPTER_INTERFACE))
976 adapter_remove(y, p);
977
978 dbus_message_iter_next(&element_i);
979 }
980
981 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
982
983 } else if (dbus_message_is_signal(m, "org.freedesktop.DBus.Properties", "PropertiesChanged")) {
984 DBusMessageIter arg_i;
985 const char *iface;
986
987 if (!y->objects_listed)
988 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; /* No reply received yet from GetManagedObjects */
989
990 if (!dbus_message_iter_init(m, &arg_i) || !pa_streq(dbus_message_get_signature(m), "sa{sv}as")) {
991 pa_log_error("Invalid signature found in PropertiesChanged");
992 goto fail;
993 }
994
995 dbus_message_iter_get_basic(&arg_i, &iface);
996
997 pa_assert_se(dbus_message_iter_next(&arg_i));
998 pa_assert(dbus_message_iter_get_arg_type(&arg_i) == DBUS_TYPE_ARRAY);
999
1000 if (pa_streq(iface, BLUEZ_ADAPTER_INTERFACE)) {
1001 pa_bluetooth_adapter *a;
1002
1003 pa_log_debug("Properties changed in adapter %s", dbus_message_get_path(m));
1004
1005 if (!(a = pa_hashmap_get(y->adapters, dbus_message_get_path(m)))) {
1006 pa_log_warn("Properties changed in unknown adapter");
1007 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1008 }
1009
1010 parse_adapter_properties(a, &arg_i, true);
1011
1012 } else if (pa_streq(iface, BLUEZ_DEVICE_INTERFACE)) {
1013 pa_bluetooth_device *d;
1014
1015 pa_log_debug("Properties changed in device %s", dbus_message_get_path(m));
1016
1017 if (!(d = pa_hashmap_get(y->devices, dbus_message_get_path(m)))) {
1018 pa_log_warn("Properties changed in unknown device");
1019 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1020 }
1021
1022 if (d->device_info_valid != 1) {
1023 pa_log_warn("Properties changed in a device which information is unknown or invalid");
1024 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1025 }
1026
1027 parse_device_properties(d, &arg_i, true);
1028 } else if (pa_streq(iface, BLUEZ_MEDIA_TRANSPORT_INTERFACE)) {
1029 pa_bluetooth_transport *t;
1030
1031 pa_log_debug("Properties changed in transport %s", dbus_message_get_path(m));
1032
1033 if (!(t = pa_hashmap_get(y->transports, dbus_message_get_path(m))))
1034 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1035
1036 parse_transport_properties(t, &arg_i);
1037 }
1038
1039 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1040 }
1041
1042 fail:
1043 dbus_error_free(&err);
1044
1045 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1046 }
1047
1048 static uint8_t a2dp_default_bitpool(uint8_t freq, uint8_t mode) {
1049 /* These bitpool values were chosen based on the A2DP spec recommendation */
1050 switch (freq) {
1051 case SBC_SAMPLING_FREQ_16000:
1052 case SBC_SAMPLING_FREQ_32000:
1053 return 53;
1054
1055 case SBC_SAMPLING_FREQ_44100:
1056
1057 switch (mode) {
1058 case SBC_CHANNEL_MODE_MONO:
1059 case SBC_CHANNEL_MODE_DUAL_CHANNEL:
1060 return 31;
1061
1062 case SBC_CHANNEL_MODE_STEREO:
1063 case SBC_CHANNEL_MODE_JOINT_STEREO:
1064 return 53;
1065 }
1066
1067 pa_log_warn("Invalid channel mode %u", mode);
1068 return 53;
1069
1070 case SBC_SAMPLING_FREQ_48000:
1071
1072 switch (mode) {
1073 case SBC_CHANNEL_MODE_MONO:
1074 case SBC_CHANNEL_MODE_DUAL_CHANNEL:
1075 return 29;
1076
1077 case SBC_CHANNEL_MODE_STEREO:
1078 case SBC_CHANNEL_MODE_JOINT_STEREO:
1079 return 51;
1080 }
1081
1082 pa_log_warn("Invalid channel mode %u", mode);
1083 return 51;
1084 }
1085
1086 pa_log_warn("Invalid sampling freq %u", freq);
1087 return 53;
1088 }
1089
1090 const char *pa_bluetooth_profile_to_string(pa_bluetooth_profile_t profile) {
1091 switch(profile) {
1092 case PA_BLUETOOTH_PROFILE_A2DP_SINK:
1093 return "a2dp_sink";
1094 case PA_BLUETOOTH_PROFILE_A2DP_SOURCE:
1095 return "a2dp_source";
1096 case PA_BLUETOOTH_PROFILE_OFF:
1097 return "off";
1098 }
1099
1100 return NULL;
1101 }
1102
1103 static DBusMessage *endpoint_set_configuration(DBusConnection *conn, DBusMessage *m, void *userdata) {
1104 pa_bluetooth_discovery *y = userdata;
1105 pa_bluetooth_device *d;
1106 pa_bluetooth_transport *t;
1107 const char *sender, *path, *endpoint_path, *dev_path = NULL, *uuid = NULL;
1108 const uint8_t *config = NULL;
1109 int size = 0;
1110 pa_bluetooth_profile_t p = PA_BLUETOOTH_PROFILE_OFF;
1111 DBusMessageIter args, props;
1112 DBusMessage *r;
1113
1114 if (!dbus_message_iter_init(m, &args) || !pa_streq(dbus_message_get_signature(m), "oa{sv}")) {
1115 pa_log_error("Invalid signature for method SetConfiguration()");
1116 goto fail2;
1117 }
1118
1119 dbus_message_iter_get_basic(&args, &path);
1120
1121 if (pa_hashmap_get(y->transports, path)) {
1122 pa_log_error("Endpoint SetConfiguration(): Transport %s is already configured.", path);
1123 goto fail2;
1124 }
1125
1126 pa_assert_se(dbus_message_iter_next(&args));
1127
1128 dbus_message_iter_recurse(&args, &props);
1129 if (dbus_message_iter_get_arg_type(&props) != DBUS_TYPE_DICT_ENTRY)
1130 goto fail;
1131
1132 /* Read transport properties */
1133 while (dbus_message_iter_get_arg_type(&props) == DBUS_TYPE_DICT_ENTRY) {
1134 const char *key;
1135 DBusMessageIter value, entry;
1136 int var;
1137
1138 dbus_message_iter_recurse(&props, &entry);
1139 dbus_message_iter_get_basic(&entry, &key);
1140
1141 dbus_message_iter_next(&entry);
1142 dbus_message_iter_recurse(&entry, &value);
1143
1144 var = dbus_message_iter_get_arg_type(&value);
1145
1146 if (pa_streq(key, "UUID")) {
1147 if (var != DBUS_TYPE_STRING) {
1148 pa_log_error("Property %s of wrong type %c", key, (char)var);
1149 goto fail;
1150 }
1151
1152 dbus_message_iter_get_basic(&value, &uuid);
1153
1154 endpoint_path = dbus_message_get_path(m);
1155 if (pa_streq(endpoint_path, A2DP_SOURCE_ENDPOINT)) {
1156 if (pa_streq(uuid, PA_BLUETOOTH_UUID_A2DP_SOURCE))
1157 p = PA_BLUETOOTH_PROFILE_A2DP_SINK;
1158 } else if (pa_streq(endpoint_path, A2DP_SINK_ENDPOINT)) {
1159 if (pa_streq(uuid, PA_BLUETOOTH_UUID_A2DP_SINK))
1160 p = PA_BLUETOOTH_PROFILE_A2DP_SOURCE;
1161 }
1162
1163 if (p == PA_BLUETOOTH_PROFILE_OFF) {
1164 pa_log_error("UUID %s of transport %s incompatible with endpoint %s", uuid, path, endpoint_path);
1165 goto fail;
1166 }
1167 } else if (pa_streq(key, "Device")) {
1168 if (var != DBUS_TYPE_OBJECT_PATH) {
1169 pa_log_error("Property %s of wrong type %c", key, (char)var);
1170 goto fail;
1171 }
1172
1173 dbus_message_iter_get_basic(&value, &dev_path);
1174 } else if (pa_streq(key, "Configuration")) {
1175 DBusMessageIter array;
1176 a2dp_sbc_t *c;
1177
1178 if (var != DBUS_TYPE_ARRAY) {
1179 pa_log_error("Property %s of wrong type %c", key, (char)var);
1180 goto fail;
1181 }
1182
1183 dbus_message_iter_recurse(&value, &array);
1184 var = dbus_message_iter_get_arg_type(&array);
1185 if (var != DBUS_TYPE_BYTE) {
1186 pa_log_error("%s is an array of wrong type %c", key, (char)var);
1187 goto fail;
1188 }
1189
1190 dbus_message_iter_get_fixed_array(&array, &config, &size);
1191 if (size != sizeof(a2dp_sbc_t)) {
1192 pa_log_error("Configuration array of invalid size");
1193 goto fail;
1194 }
1195
1196 c = (a2dp_sbc_t *) config;
1197
1198 if (c->frequency != SBC_SAMPLING_FREQ_16000 && c->frequency != SBC_SAMPLING_FREQ_32000 &&
1199 c->frequency != SBC_SAMPLING_FREQ_44100 && c->frequency != SBC_SAMPLING_FREQ_48000) {
1200 pa_log_error("Invalid sampling frequency in configuration");
1201 goto fail;
1202 }
1203
1204 if (c->channel_mode != SBC_CHANNEL_MODE_MONO && c->channel_mode != SBC_CHANNEL_MODE_DUAL_CHANNEL &&
1205 c->channel_mode != SBC_CHANNEL_MODE_STEREO && c->channel_mode != SBC_CHANNEL_MODE_JOINT_STEREO) {
1206 pa_log_error("Invalid channel mode in configuration");
1207 goto fail;
1208 }
1209
1210 if (c->allocation_method != SBC_ALLOCATION_SNR && c->allocation_method != SBC_ALLOCATION_LOUDNESS) {
1211 pa_log_error("Invalid allocation method in configuration");
1212 goto fail;
1213 }
1214
1215 if (c->subbands != SBC_SUBBANDS_4 && c->subbands != SBC_SUBBANDS_8) {
1216 pa_log_error("Invalid SBC subbands in configuration");
1217 goto fail;
1218 }
1219
1220 if (c->block_length != SBC_BLOCK_LENGTH_4 && c->block_length != SBC_BLOCK_LENGTH_8 &&
1221 c->block_length != SBC_BLOCK_LENGTH_12 && c->block_length != SBC_BLOCK_LENGTH_16) {
1222 pa_log_error("Invalid block length in configuration");
1223 goto fail;
1224 }
1225 }
1226
1227 dbus_message_iter_next(&props);
1228 }
1229
1230 if ((d = pa_hashmap_get(y->devices, dev_path))) {
1231 if (d->device_info_valid == -1) {
1232 pa_log_error("Information about device %s is invalid", dev_path);
1233 goto fail2;
1234 }
1235 } else {
1236 /* InterfacesAdded signal is probably on its way, device_info_valid is kept as 0. */
1237 pa_log_warn("SetConfiguration() received for unknown device %s", dev_path);
1238 d = device_create(y, dev_path);
1239 }
1240
1241 if (d->transports[p] != NULL) {
1242 pa_log_error("Cannot configure transport %s because profile %s is already used", path, pa_bluetooth_profile_to_string(p));
1243 goto fail2;
1244 }
1245
1246 sender = dbus_message_get_sender(m);
1247
1248 pa_assert_se(r = dbus_message_new_method_return(m));
1249 pa_assert_se(dbus_connection_send(pa_dbus_connection_get(y->connection), r, NULL));
1250 dbus_message_unref(r);
1251
1252 d->transports[p] = t = pa_bluetooth_transport_new(d, sender, path, p, config, size);
1253 t->acquire = bluez5_transport_acquire_cb;
1254 t->release = bluez5_transport_release_cb;
1255 pa_bluetooth_transport_put(t);
1256
1257 pa_log_debug("Transport %s available for profile %s", t->path, pa_bluetooth_profile_to_string(t->profile));
1258
1259 return NULL;
1260
1261 fail:
1262 pa_log_error("Endpoint SetConfiguration(): invalid arguments");
1263
1264 fail2:
1265 pa_assert_se(r = dbus_message_new_error(m, "org.bluez.Error.InvalidArguments", "Unable to set configuration"));
1266 return r;
1267 }
1268
1269 static DBusMessage *endpoint_select_configuration(DBusConnection *conn, DBusMessage *m, void *userdata) {
1270 pa_bluetooth_discovery *y = userdata;
1271 a2dp_sbc_t *cap, config;
1272 uint8_t *pconf = (uint8_t *) &config;
1273 int i, size;
1274 DBusMessage *r;
1275 DBusError err;
1276
1277 static const struct {
1278 uint32_t rate;
1279 uint8_t cap;
1280 } freq_table[] = {
1281 { 16000U, SBC_SAMPLING_FREQ_16000 },
1282 { 32000U, SBC_SAMPLING_FREQ_32000 },
1283 { 44100U, SBC_SAMPLING_FREQ_44100 },
1284 { 48000U, SBC_SAMPLING_FREQ_48000 }
1285 };
1286
1287 dbus_error_init(&err);
1288
1289 if (!dbus_message_get_args(m, &err, DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE, &cap, &size, DBUS_TYPE_INVALID)) {
1290 pa_log_error("Endpoint SelectConfiguration(): %s", err.message);
1291 dbus_error_free(&err);
1292 goto fail;
1293 }
1294
1295 if (size != sizeof(config)) {
1296 pa_log_error("Capabilities array has invalid size");
1297 goto fail;
1298 }
1299
1300 pa_zero(config);
1301
1302 /* Find the lowest freq that is at least as high as the requested sampling rate */
1303 for (i = 0; (unsigned) i < PA_ELEMENTSOF(freq_table); i++)
1304 if (freq_table[i].rate >= y->core->default_sample_spec.rate && (cap->frequency & freq_table[i].cap)) {
1305 config.frequency = freq_table[i].cap;
1306 break;
1307 }
1308
1309 if ((unsigned) i == PA_ELEMENTSOF(freq_table)) {
1310 for (--i; i >= 0; i--) {
1311 if (cap->frequency & freq_table[i].cap) {
1312 config.frequency = freq_table[i].cap;
1313 break;
1314 }
1315 }
1316
1317 if (i < 0) {
1318 pa_log_error("Not suitable sample rate");
1319 goto fail;
1320 }
1321 }
1322
1323 pa_assert((unsigned) i < PA_ELEMENTSOF(freq_table));
1324
1325 if (y->core->default_sample_spec.channels <= 1) {
1326 if (cap->channel_mode & SBC_CHANNEL_MODE_MONO)
1327 config.channel_mode = SBC_CHANNEL_MODE_MONO;
1328 else if (cap->channel_mode & SBC_CHANNEL_MODE_JOINT_STEREO)
1329 config.channel_mode = SBC_CHANNEL_MODE_JOINT_STEREO;
1330 else if (cap->channel_mode & SBC_CHANNEL_MODE_STEREO)
1331 config.channel_mode = SBC_CHANNEL_MODE_STEREO;
1332 else if (cap->channel_mode & SBC_CHANNEL_MODE_DUAL_CHANNEL)
1333 config.channel_mode = SBC_CHANNEL_MODE_DUAL_CHANNEL;
1334 else {
1335 pa_log_error("No supported channel modes");
1336 goto fail;
1337 }
1338 }
1339
1340 if (y->core->default_sample_spec.channels >= 2) {
1341 if (cap->channel_mode & SBC_CHANNEL_MODE_JOINT_STEREO)
1342 config.channel_mode = SBC_CHANNEL_MODE_JOINT_STEREO;
1343 else if (cap->channel_mode & SBC_CHANNEL_MODE_STEREO)
1344 config.channel_mode = SBC_CHANNEL_MODE_STEREO;
1345 else if (cap->channel_mode & SBC_CHANNEL_MODE_DUAL_CHANNEL)
1346 config.channel_mode = SBC_CHANNEL_MODE_DUAL_CHANNEL;
1347 else if (cap->channel_mode & SBC_CHANNEL_MODE_MONO)
1348 config.channel_mode = SBC_CHANNEL_MODE_MONO;
1349 else {
1350 pa_log_error("No supported channel modes");
1351 goto fail;
1352 }
1353 }
1354
1355 if (cap->block_length & SBC_BLOCK_LENGTH_16)
1356 config.block_length = SBC_BLOCK_LENGTH_16;
1357 else if (cap->block_length & SBC_BLOCK_LENGTH_12)
1358 config.block_length = SBC_BLOCK_LENGTH_12;
1359 else if (cap->block_length & SBC_BLOCK_LENGTH_8)
1360 config.block_length = SBC_BLOCK_LENGTH_8;
1361 else if (cap->block_length & SBC_BLOCK_LENGTH_4)
1362 config.block_length = SBC_BLOCK_LENGTH_4;
1363 else {
1364 pa_log_error("No supported block lengths");
1365 goto fail;
1366 }
1367
1368 if (cap->subbands & SBC_SUBBANDS_8)
1369 config.subbands = SBC_SUBBANDS_8;
1370 else if (cap->subbands & SBC_SUBBANDS_4)
1371 config.subbands = SBC_SUBBANDS_4;
1372 else {
1373 pa_log_error("No supported subbands");
1374 goto fail;
1375 }
1376
1377 if (cap->allocation_method & SBC_ALLOCATION_LOUDNESS)
1378 config.allocation_method = SBC_ALLOCATION_LOUDNESS;
1379 else if (cap->allocation_method & SBC_ALLOCATION_SNR)
1380 config.allocation_method = SBC_ALLOCATION_SNR;
1381
1382 config.min_bitpool = (uint8_t) PA_MAX(MIN_BITPOOL, cap->min_bitpool);
1383 config.max_bitpool = (uint8_t) PA_MIN(a2dp_default_bitpool(config.frequency, config.channel_mode), cap->max_bitpool);
1384
1385 if (config.min_bitpool > config.max_bitpool)
1386 goto fail;
1387
1388 pa_assert_se(r = dbus_message_new_method_return(m));
1389 pa_assert_se(dbus_message_append_args(r, DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE, &pconf, size, DBUS_TYPE_INVALID));
1390
1391 return r;
1392
1393 fail:
1394 pa_assert_se(r = dbus_message_new_error(m, "org.bluez.Error.InvalidArguments", "Unable to select configuration"));
1395 return r;
1396 }
1397
1398 static DBusMessage *endpoint_clear_configuration(DBusConnection *conn, DBusMessage *m, void *userdata) {
1399 pa_bluetooth_discovery *y = userdata;
1400 pa_bluetooth_transport *t;
1401 DBusMessage *r;
1402 DBusError err;
1403 const char *path;
1404
1405 dbus_error_init(&err);
1406
1407 if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
1408 pa_log_error("Endpoint ClearConfiguration(): %s", err.message);
1409 dbus_error_free(&err);
1410 goto fail;
1411 }
1412
1413 if ((t = pa_hashmap_get(y->transports, path))) {
1414 pa_log_debug("Clearing transport %s profile %s", t->path, pa_bluetooth_profile_to_string(t->profile));
1415 transport_state_changed(t, PA_BLUETOOTH_TRANSPORT_STATE_DISCONNECTED);
1416 pa_bluetooth_transport_free(t);
1417 }
1418
1419 pa_assert_se(r = dbus_message_new_method_return(m));
1420
1421 return r;
1422
1423 fail:
1424 pa_assert_se(r = dbus_message_new_error(m, "org.bluez.Error.InvalidArguments", "Unable to clear configuration"));
1425 return r;
1426 }
1427
1428 static DBusMessage *endpoint_release(DBusConnection *conn, DBusMessage *m, void *userdata) {
1429 DBusMessage *r;
1430
1431 pa_assert_se(r = dbus_message_new_error(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE ".Error.NotImplemented",
1432 "Method not implemented"));
1433
1434 return r;
1435 }
1436
1437 static DBusHandlerResult endpoint_handler(DBusConnection *c, DBusMessage *m, void *userdata) {
1438 struct pa_bluetooth_discovery *y = userdata;
1439 DBusMessage *r = NULL;
1440 const char *path, *interface, *member;
1441
1442 pa_assert(y);
1443
1444 path = dbus_message_get_path(m);
1445 interface = dbus_message_get_interface(m);
1446 member = dbus_message_get_member(m);
1447
1448 pa_log_debug("dbus: path=%s, interface=%s, member=%s", path, interface, member);
1449
1450 if (!pa_streq(path, A2DP_SOURCE_ENDPOINT) && !pa_streq(path, A2DP_SINK_ENDPOINT))
1451 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1452
1453 if (dbus_message_is_method_call(m, "org.freedesktop.DBus.Introspectable", "Introspect")) {
1454 const char *xml = ENDPOINT_INTROSPECT_XML;
1455
1456 pa_assert_se(r = dbus_message_new_method_return(m));
1457 pa_assert_se(dbus_message_append_args(r, DBUS_TYPE_STRING, &xml, DBUS_TYPE_INVALID));
1458
1459 } else if (dbus_message_is_method_call(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE, "SetConfiguration"))
1460 r = endpoint_set_configuration(c, m, userdata);
1461 else if (dbus_message_is_method_call(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE, "SelectConfiguration"))
1462 r = endpoint_select_configuration(c, m, userdata);
1463 else if (dbus_message_is_method_call(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE, "ClearConfiguration"))
1464 r = endpoint_clear_configuration(c, m, userdata);
1465 else if (dbus_message_is_method_call(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE, "Release"))
1466 r = endpoint_release(c, m, userdata);
1467 else
1468 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1469
1470 if (r) {
1471 pa_assert_se(dbus_connection_send(pa_dbus_connection_get(y->connection), r, NULL));
1472 dbus_message_unref(r);
1473 }
1474
1475 return DBUS_HANDLER_RESULT_HANDLED;
1476 }
1477
1478 static void endpoint_init(pa_bluetooth_discovery *y, pa_bluetooth_profile_t profile) {
1479 static const DBusObjectPathVTable vtable_endpoint = {
1480 .message_function = endpoint_handler,
1481 };
1482
1483 pa_assert(y);
1484
1485 switch(profile) {
1486 case PA_BLUETOOTH_PROFILE_A2DP_SINK:
1487 pa_assert_se(dbus_connection_register_object_path(pa_dbus_connection_get(y->connection), A2DP_SOURCE_ENDPOINT,
1488 &vtable_endpoint, y));
1489 break;
1490 case PA_BLUETOOTH_PROFILE_A2DP_SOURCE:
1491 pa_assert_se(dbus_connection_register_object_path(pa_dbus_connection_get(y->connection), A2DP_SINK_ENDPOINT,
1492 &vtable_endpoint, y));
1493 break;
1494 default:
1495 pa_assert_not_reached();
1496 break;
1497 }
1498 }
1499
1500 static void endpoint_done(pa_bluetooth_discovery *y, pa_bluetooth_profile_t profile) {
1501 pa_assert(y);
1502
1503 switch(profile) {
1504 case PA_BLUETOOTH_PROFILE_A2DP_SINK:
1505 dbus_connection_unregister_object_path(pa_dbus_connection_get(y->connection), A2DP_SOURCE_ENDPOINT);
1506 break;
1507 case PA_BLUETOOTH_PROFILE_A2DP_SOURCE:
1508 dbus_connection_unregister_object_path(pa_dbus_connection_get(y->connection), A2DP_SINK_ENDPOINT);
1509 break;
1510 default:
1511 pa_assert_not_reached();
1512 break;
1513 }
1514 }
1515
1516 pa_bluetooth_discovery* pa_bluetooth_discovery_get(pa_core *c) {
1517 pa_bluetooth_discovery *y;
1518 DBusError err;
1519 DBusConnection *conn;
1520 unsigned i;
1521
1522 y = pa_xnew0(pa_bluetooth_discovery, 1);
1523 PA_REFCNT_INIT(y);
1524 y->core = c;
1525 y->adapters = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL,
1526 (pa_free_cb_t) adapter_free);
1527 y->devices = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL,
1528 (pa_free_cb_t) device_free);
1529 y->transports = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
1530 PA_LLIST_HEAD_INIT(pa_dbus_pending, y->pending);
1531
1532 for (i = 0; i < PA_BLUETOOTH_HOOK_MAX; i++)
1533 pa_hook_init(&y->hooks[i], y);
1534
1535 pa_shared_set(c, "bluetooth-discovery", y);
1536
1537 dbus_error_init(&err);
1538
1539 if (!(y->connection = pa_dbus_bus_get(y->core, DBUS_BUS_SYSTEM, &err))) {
1540 pa_log_error("Failed to get D-Bus connection: %s", err.message);
1541 goto fail;
1542 }
1543
1544 conn = pa_dbus_connection_get(y->connection);
1545
1546 /* dynamic detection of bluetooth audio devices */
1547 if (!dbus_connection_add_filter(conn, filter_cb, y, NULL)) {
1548 pa_log_error("Failed to add filter function");
1549 goto fail;
1550 }
1551 y->filter_added = true;
1552
1553 if (pa_dbus_add_matches(conn, &err,
1554 "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged'"
1555 ",arg0='" BLUEZ_SERVICE "'",
1556 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.ObjectManager',member='InterfacesAdded'",
1557 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.ObjectManager',"
1558 "member='InterfacesRemoved'",
1559 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.Properties',member='PropertiesChanged'"
1560 ",arg0='" BLUEZ_ADAPTER_INTERFACE "'",
1561 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.Properties',member='PropertiesChanged'"
1562 ",arg0='" BLUEZ_DEVICE_INTERFACE "'",
1563 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.Properties',member='PropertiesChanged'"
1564 ",arg0='" BLUEZ_MEDIA_TRANSPORT_INTERFACE "'",
1565 NULL) < 0) {
1566 pa_log_error("Failed to add D-Bus matches: %s", err.message);
1567 goto fail;
1568 }
1569 y->matches_added = true;
1570
1571 endpoint_init(y, PA_BLUETOOTH_PROFILE_A2DP_SINK);
1572 endpoint_init(y, PA_BLUETOOTH_PROFILE_A2DP_SOURCE);
1573
1574 get_managed_objects(y);
1575
1576 return y;
1577
1578 fail:
1579 pa_bluetooth_discovery_unref(y);
1580 dbus_error_free(&err);
1581
1582 return NULL;
1583 }
1584
1585 pa_bluetooth_discovery* pa_bluetooth_discovery_ref(pa_bluetooth_discovery *y) {
1586 pa_assert(y);
1587 pa_assert(PA_REFCNT_VALUE(y) > 0);
1588
1589 PA_REFCNT_INC(y);
1590
1591 return y;
1592 }
1593
1594 void pa_bluetooth_discovery_unref(pa_bluetooth_discovery *y) {
1595 pa_assert(y);
1596 pa_assert(PA_REFCNT_VALUE(y) > 0);
1597
1598 if (PA_REFCNT_DEC(y) > 0)
1599 return;
1600
1601 pa_dbus_free_pending_list(&y->pending);
1602
1603 if (y->devices)
1604 pa_hashmap_free(y->devices);
1605
1606 if (y->adapters)
1607 pa_hashmap_free(y->adapters);
1608
1609 if (y->transports) {
1610 pa_assert(pa_hashmap_isempty(y->transports));
1611 pa_hashmap_free(y->transports);
1612 }
1613
1614 if (y->connection) {
1615
1616 if (y->matches_added)
1617 pa_dbus_remove_matches(pa_dbus_connection_get(y->connection),
1618 "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',"
1619 "arg0='" BLUEZ_SERVICE "'",
1620 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.ObjectManager',"
1621 "member='InterfacesAdded'",
1622 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.ObjectManager',"
1623 "member='InterfacesRemoved'",
1624 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.Properties',"
1625 "member='PropertiesChanged',arg0='" BLUEZ_ADAPTER_INTERFACE "'",
1626 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.Properties',"
1627 "member='PropertiesChanged',arg0='" BLUEZ_DEVICE_INTERFACE "'",
1628 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.Properties',"
1629 "member='PropertiesChanged',arg0='" BLUEZ_MEDIA_TRANSPORT_INTERFACE "'",
1630 NULL);
1631
1632 if (y->filter_added)
1633 dbus_connection_remove_filter(pa_dbus_connection_get(y->connection), filter_cb, y);
1634
1635 endpoint_done(y, PA_BLUETOOTH_PROFILE_A2DP_SINK);
1636 endpoint_done(y, PA_BLUETOOTH_PROFILE_A2DP_SOURCE);
1637
1638 pa_dbus_connection_unref(y->connection);
1639 }
1640
1641 pa_shared_remove(y->core, "bluetooth-discovery");
1642 pa_xfree(y);
1643 }