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bluetooth: Remove device_remove_all()
[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 (pa_streq(d->address, remote) && pa_streq(d->adapter->address, local))
399 return d->device_info_valid == 1 ? d : NULL;
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);
428 }
429
430 static void device_remove(pa_bluetooth_discovery *y, const char *path) {
431 pa_bluetooth_device *d;
432
433 if (!(d = pa_hashmap_remove(y->devices, path)))
434 pa_log_warn("Unknown device removed %s", path);
435 else {
436 pa_log_debug("Device %s removed", path);
437 device_free(d);
438 }
439 }
440
441 static void set_device_info_valid(pa_bluetooth_device *device, int valid) {
442 bool old_any_connected;
443
444 pa_assert(device);
445 pa_assert(valid == -1 || valid == 0 || valid == 1);
446
447 if (valid == device->device_info_valid)
448 return;
449
450 old_any_connected = pa_bluetooth_device_any_transport_connected(device);
451 device->device_info_valid = valid;
452
453 if (pa_bluetooth_device_any_transport_connected(device) != old_any_connected)
454 pa_hook_fire(&device->discovery->hooks[PA_BLUETOOTH_HOOK_DEVICE_CONNECTION_CHANGED], device);
455 }
456
457 static pa_bluetooth_adapter* adapter_create(pa_bluetooth_discovery *y, const char *path) {
458 pa_bluetooth_adapter *a;
459
460 pa_assert(y);
461 pa_assert(path);
462
463 a = pa_xnew0(pa_bluetooth_adapter, 1);
464 a->discovery = y;
465 a->path = pa_xstrdup(path);
466
467 pa_hashmap_put(y->adapters, a->path, a);
468
469 return a;
470 }
471
472 static void adapter_free(pa_bluetooth_adapter *a) {
473 pa_bluetooth_device *d;
474 void *state;
475
476 pa_assert(a);
477 pa_assert(a->discovery);
478
479 PA_HASHMAP_FOREACH(d, a->discovery->devices, state)
480 if (d->adapter == a)
481 d->adapter = NULL;
482
483 pa_xfree(a->path);
484 pa_xfree(a->address);
485 pa_xfree(a);
486 }
487
488 static void adapter_remove(pa_bluetooth_discovery *y, const char *path) {
489 pa_bluetooth_adapter *a;
490
491 if (!(a = pa_hashmap_remove(y->adapters, path)))
492 pa_log_warn("Unknown adapter removed %s", path);
493 else {
494 pa_log_debug("Adapter %s removed", path);
495 adapter_free(a);
496 }
497 }
498
499 static void parse_device_property(pa_bluetooth_device *d, DBusMessageIter *i, bool is_property_change) {
500 const char *key;
501 DBusMessageIter variant_i;
502
503 pa_assert(d);
504
505 key = check_variant_property(i);
506 if (key == NULL) {
507 pa_log_error("Received invalid property for device %s", d->path);
508 return;
509 }
510
511 dbus_message_iter_recurse(i, &variant_i);
512
513 switch (dbus_message_iter_get_arg_type(&variant_i)) {
514
515 case DBUS_TYPE_STRING: {
516 const char *value;
517 dbus_message_iter_get_basic(&variant_i, &value);
518
519 if (pa_streq(key, "Alias")) {
520 pa_xfree(d->alias);
521 d->alias = pa_xstrdup(value);
522 pa_log_debug("%s: %s", key, value);
523 } else if (pa_streq(key, "Address")) {
524 if (is_property_change) {
525 pa_log_warn("Device property 'Address' expected to be constant but changed for %s, ignoring", d->path);
526 return;
527 }
528
529 if (d->address) {
530 pa_log_warn("Device %s: Received a duplicate 'Address' property, ignoring", d->path);
531 return;
532 }
533
534 d->address = pa_xstrdup(value);
535 pa_log_debug("%s: %s", key, value);
536 }
537
538 break;
539 }
540
541 case DBUS_TYPE_OBJECT_PATH: {
542 const char *value;
543 dbus_message_iter_get_basic(&variant_i, &value);
544
545 if (pa_streq(key, "Adapter")) {
546
547 if (is_property_change) {
548 pa_log_warn("Device property 'Adapter' expected to be constant but changed for %s, ignoring", d->path);
549 return;
550 }
551
552 if (d->adapter_path) {
553 pa_log_warn("Device %s: Received a duplicate 'Adapter' property, ignoring", d->path);
554 return;
555 }
556
557 d->adapter_path = pa_xstrdup(value);
558
559 d->adapter = pa_hashmap_get(d->discovery->adapters, value);
560 if (!d->adapter)
561 pa_log_info("Device %s: 'Adapter' property references an unknown adapter %s.", d->path, value);
562
563 pa_log_debug("%s: %s", key, value);
564 }
565
566 break;
567 }
568
569 case DBUS_TYPE_UINT32: {
570 uint32_t value;
571 dbus_message_iter_get_basic(&variant_i, &value);
572
573 if (pa_streq(key, "Class")) {
574 d->class_of_device = value;
575 pa_log_debug("%s: %d", key, value);
576 }
577
578 break;
579 }
580
581 case DBUS_TYPE_ARRAY: {
582 DBusMessageIter ai;
583 dbus_message_iter_recurse(&variant_i, &ai);
584
585 if (dbus_message_iter_get_arg_type(&ai) == DBUS_TYPE_STRING && pa_streq(key, "UUIDs")) {
586 /* bluetoothd never removes UUIDs from a device object so there
587 * is no need to handle it here. */
588 while (dbus_message_iter_get_arg_type(&ai) != DBUS_TYPE_INVALID) {
589 const char *value;
590 char *uuid;
591
592 dbus_message_iter_get_basic(&ai, &value);
593
594 if (pa_hashmap_get(d->uuids, value)) {
595 dbus_message_iter_next(&ai);
596 continue;
597 }
598
599 uuid = pa_xstrdup(value);
600 pa_hashmap_put(d->uuids, uuid, uuid);
601
602 pa_log_debug("%s: %s", key, value);
603 dbus_message_iter_next(&ai);
604 }
605 }
606
607 break;
608 }
609 }
610 }
611
612 static int parse_device_properties(pa_bluetooth_device *d, DBusMessageIter *i, bool is_property_change) {
613 DBusMessageIter element_i;
614
615 dbus_message_iter_recurse(i, &element_i);
616
617 while (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
618 DBusMessageIter dict_i;
619
620 dbus_message_iter_recurse(&element_i, &dict_i);
621 parse_device_property(d, &dict_i, is_property_change);
622 dbus_message_iter_next(&element_i);
623 }
624
625 if (!d->address || !d->adapter_path || !d->alias) {
626 pa_log_error("Non-optional information missing for device %s", d->path);
627 set_device_info_valid(d, -1);
628 return -1;
629 }
630
631 if (!is_property_change && d->adapter)
632 set_device_info_valid(d, 1);
633
634 /* If d->adapter is NULL, device_info_valid will be left as 0, and updated
635 * after all interfaces have been parsed. */
636
637 return 0;
638 }
639
640 static void parse_adapter_properties(pa_bluetooth_adapter *a, DBusMessageIter *i, bool is_property_change) {
641 DBusMessageIter element_i;
642
643 pa_assert(a);
644
645 dbus_message_iter_recurse(i, &element_i);
646
647 while (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
648 DBusMessageIter dict_i, variant_i;
649 const char *key;
650
651 dbus_message_iter_recurse(&element_i, &dict_i);
652
653 key = check_variant_property(&dict_i);
654 if (key == NULL) {
655 pa_log_error("Received invalid property for adapter %s", a->path);
656 return;
657 }
658
659 dbus_message_iter_recurse(&dict_i, &variant_i);
660
661 if (dbus_message_iter_get_arg_type(&variant_i) == DBUS_TYPE_STRING && pa_streq(key, "Address")) {
662 const char *value;
663
664 if (is_property_change) {
665 pa_log_warn("Adapter property 'Address' expected to be constant but changed for %s, ignoring", a->path);
666 return;
667 }
668
669 if (a->address) {
670 pa_log_warn("Adapter %s received a duplicate 'Address' property, ignoring", a->path);
671 return;
672 }
673
674 dbus_message_iter_get_basic(&variant_i, &value);
675 a->address = pa_xstrdup(value);
676 }
677
678 dbus_message_iter_next(&element_i);
679 }
680 }
681
682 static void register_endpoint_reply(DBusPendingCall *pending, void *userdata) {
683 DBusMessage *r;
684 pa_dbus_pending *p;
685 pa_bluetooth_discovery *y;
686 char *endpoint;
687
688 pa_assert(pending);
689 pa_assert_se(p = userdata);
690 pa_assert_se(y = p->context_data);
691 pa_assert_se(endpoint = p->call_data);
692 pa_assert_se(r = dbus_pending_call_steal_reply(pending));
693
694 if (dbus_message_is_error(r, BLUEZ_ERROR_NOT_SUPPORTED)) {
695 pa_log_info("Couldn't register endpoint %s because it is disabled in BlueZ", endpoint);
696 goto finish;
697 }
698
699 if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
700 pa_log_error(BLUEZ_MEDIA_INTERFACE ".RegisterEndpoint() failed: %s: %s", dbus_message_get_error_name(r),
701 pa_dbus_get_error_message(r));
702 goto finish;
703 }
704
705 finish:
706 dbus_message_unref(r);
707
708 PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
709 pa_dbus_pending_free(p);
710
711 pa_xfree(endpoint);
712 }
713
714 static void register_endpoint(pa_bluetooth_discovery *y, const char *path, const char *endpoint, const char *uuid) {
715 DBusMessage *m;
716 DBusMessageIter i, d;
717 uint8_t codec = 0;
718
719 pa_log_debug("Registering %s on adapter %s", endpoint, path);
720
721 pa_assert_se(m = dbus_message_new_method_call(BLUEZ_SERVICE, path, BLUEZ_MEDIA_INTERFACE, "RegisterEndpoint"));
722
723 dbus_message_iter_init_append(m, &i);
724 dbus_message_iter_append_basic(&i, DBUS_TYPE_OBJECT_PATH, &endpoint);
725 dbus_message_iter_open_container(&i, DBUS_TYPE_ARRAY, DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING DBUS_TYPE_STRING_AS_STRING
726 DBUS_TYPE_VARIANT_AS_STRING DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &d);
727 pa_dbus_append_basic_variant_dict_entry(&d, "UUID", DBUS_TYPE_STRING, &uuid);
728 pa_dbus_append_basic_variant_dict_entry(&d, "Codec", DBUS_TYPE_BYTE, &codec);
729
730 if (pa_streq(uuid, PA_BLUETOOTH_UUID_A2DP_SOURCE) || pa_streq(uuid, PA_BLUETOOTH_UUID_A2DP_SINK)) {
731 a2dp_sbc_t capabilities;
732
733 capabilities.channel_mode = SBC_CHANNEL_MODE_MONO | SBC_CHANNEL_MODE_DUAL_CHANNEL | SBC_CHANNEL_MODE_STEREO |
734 SBC_CHANNEL_MODE_JOINT_STEREO;
735 capabilities.frequency = SBC_SAMPLING_FREQ_16000 | SBC_SAMPLING_FREQ_32000 | SBC_SAMPLING_FREQ_44100 |
736 SBC_SAMPLING_FREQ_48000;
737 capabilities.allocation_method = SBC_ALLOCATION_SNR | SBC_ALLOCATION_LOUDNESS;
738 capabilities.subbands = SBC_SUBBANDS_4 | SBC_SUBBANDS_8;
739 capabilities.block_length = SBC_BLOCK_LENGTH_4 | SBC_BLOCK_LENGTH_8 | SBC_BLOCK_LENGTH_12 | SBC_BLOCK_LENGTH_16;
740 capabilities.min_bitpool = MIN_BITPOOL;
741 capabilities.max_bitpool = MAX_BITPOOL;
742
743 pa_dbus_append_basic_array_variant_dict_entry(&d, "Capabilities", DBUS_TYPE_BYTE, &capabilities, sizeof(capabilities));
744 }
745
746 dbus_message_iter_close_container(&i, &d);
747
748 send_and_add_to_pending(y, m, register_endpoint_reply, pa_xstrdup(endpoint));
749 }
750
751 static void parse_interfaces_and_properties(pa_bluetooth_discovery *y, DBusMessageIter *dict_i) {
752 DBusMessageIter element_i;
753 const char *path;
754 void *state;
755 pa_bluetooth_device *d;
756
757 pa_assert(dbus_message_iter_get_arg_type(dict_i) == DBUS_TYPE_OBJECT_PATH);
758 dbus_message_iter_get_basic(dict_i, &path);
759
760 pa_assert_se(dbus_message_iter_next(dict_i));
761 pa_assert(dbus_message_iter_get_arg_type(dict_i) == DBUS_TYPE_ARRAY);
762
763 dbus_message_iter_recurse(dict_i, &element_i);
764
765 while (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
766 DBusMessageIter iface_i;
767 const char *interface;
768
769 dbus_message_iter_recurse(&element_i, &iface_i);
770
771 pa_assert(dbus_message_iter_get_arg_type(&iface_i) == DBUS_TYPE_STRING);
772 dbus_message_iter_get_basic(&iface_i, &interface);
773
774 pa_assert_se(dbus_message_iter_next(&iface_i));
775 pa_assert(dbus_message_iter_get_arg_type(&iface_i) == DBUS_TYPE_ARRAY);
776
777 if (pa_streq(interface, BLUEZ_ADAPTER_INTERFACE)) {
778 pa_bluetooth_adapter *a;
779
780 if ((a = pa_hashmap_get(y->adapters, path))) {
781 pa_log_error("Found duplicated D-Bus path for device %s", path);
782 return;
783 } else
784 a = adapter_create(y, path);
785
786 pa_log_debug("Adapter %s found", path);
787
788 parse_adapter_properties(a, &iface_i, false);
789 if (!a->address)
790 return;
791
792 register_endpoint(y, path, A2DP_SOURCE_ENDPOINT, PA_BLUETOOTH_UUID_A2DP_SOURCE);
793 register_endpoint(y, path, A2DP_SINK_ENDPOINT, PA_BLUETOOTH_UUID_A2DP_SINK);
794
795 } else if (pa_streq(interface, BLUEZ_DEVICE_INTERFACE)) {
796
797 if ((d = pa_hashmap_get(y->devices, path))) {
798 if (d->device_info_valid != 0) {
799 pa_log_error("Found duplicated D-Bus path for device %s", path);
800 return;
801 }
802 } else
803 d = device_create(y, path);
804
805 pa_log_debug("Device %s found", d->path);
806
807 parse_device_properties(d, &iface_i, false);
808
809 } else
810 pa_log_debug("Unknown interface %s found, skipping", interface);
811
812 dbus_message_iter_next(&element_i);
813 }
814
815 PA_HASHMAP_FOREACH(d, y->devices, state) {
816 if (d->device_info_valid != 0)
817 continue;
818
819 if (!d->adapter && d->adapter_path) {
820 d->adapter = pa_hashmap_get(d->discovery->adapters, d->adapter_path);
821 if (!d->adapter) {
822 pa_log_error("Device %s is child of nonexistent adapter %s", d->path, d->adapter_path);
823 set_device_info_valid(d, -1);
824 } else
825 set_device_info_valid(d, 1);
826 }
827 }
828
829 return;
830 }
831
832 static void get_managed_objects_reply(DBusPendingCall *pending, void *userdata) {
833 pa_dbus_pending *p;
834 pa_bluetooth_discovery *y;
835 DBusMessage *r;
836 DBusMessageIter arg_i, element_i;
837
838 pa_assert_se(p = userdata);
839 pa_assert_se(y = p->context_data);
840 pa_assert_se(r = dbus_pending_call_steal_reply(pending));
841
842 if (dbus_message_is_error(r, DBUS_ERROR_UNKNOWN_METHOD)) {
843 pa_log_warn("BlueZ D-Bus ObjectManager not available");
844 goto finish;
845 }
846
847 if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
848 pa_log_error("GetManagedObjects() failed: %s: %s", dbus_message_get_error_name(r), pa_dbus_get_error_message(r));
849 goto finish;
850 }
851
852 if (!dbus_message_iter_init(r, &arg_i) || !pa_streq(dbus_message_get_signature(r), "a{oa{sa{sv}}}")) {
853 pa_log_error("Invalid reply signature for GetManagedObjects()");
854 goto finish;
855 }
856
857 dbus_message_iter_recurse(&arg_i, &element_i);
858 while (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
859 DBusMessageIter dict_i;
860
861 dbus_message_iter_recurse(&element_i, &dict_i);
862
863 parse_interfaces_and_properties(y, &dict_i);
864
865 dbus_message_iter_next(&element_i);
866 }
867
868 y->objects_listed = true;
869
870 finish:
871 dbus_message_unref(r);
872
873 PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
874 pa_dbus_pending_free(p);
875 }
876
877 static void get_managed_objects(pa_bluetooth_discovery *y) {
878 DBusMessage *m;
879
880 pa_assert(y);
881
882 pa_assert_se(m = dbus_message_new_method_call(BLUEZ_SERVICE, "/", "org.freedesktop.DBus.ObjectManager",
883 "GetManagedObjects"));
884 send_and_add_to_pending(y, m, get_managed_objects_reply, NULL);
885 }
886
887 pa_hook* pa_bluetooth_discovery_hook(pa_bluetooth_discovery *y, pa_bluetooth_hook_t hook) {
888 pa_assert(y);
889 pa_assert(PA_REFCNT_VALUE(y) > 0);
890
891 return &y->hooks[hook];
892 }
893
894 static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *userdata) {
895 pa_bluetooth_discovery *y;
896 DBusError err;
897
898 pa_assert(bus);
899 pa_assert(m);
900 pa_assert_se(y = userdata);
901
902 dbus_error_init(&err);
903
904 if (dbus_message_is_signal(m, "org.freedesktop.DBus", "NameOwnerChanged")) {
905 const char *name, *old_owner, *new_owner;
906
907 if (!dbus_message_get_args(m, &err,
908 DBUS_TYPE_STRING, &name,
909 DBUS_TYPE_STRING, &old_owner,
910 DBUS_TYPE_STRING, &new_owner,
911 DBUS_TYPE_INVALID)) {
912 pa_log_error("Failed to parse org.freedesktop.DBus.NameOwnerChanged: %s", err.message);
913 goto fail;
914 }
915
916 if (pa_streq(name, BLUEZ_SERVICE)) {
917 if (old_owner && *old_owner) {
918 pa_log_debug("Bluetooth daemon disappeared");
919 pa_hashmap_remove_all(y->devices);
920 pa_hashmap_remove_all(y->adapters);
921 y->objects_listed = false;
922 }
923
924 if (new_owner && *new_owner) {
925 pa_log_debug("Bluetooth daemon appeared");
926 get_managed_objects(y);
927 }
928 }
929
930 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
931 } else if (dbus_message_is_signal(m, "org.freedesktop.DBus.ObjectManager", "InterfacesAdded")) {
932 DBusMessageIter arg_i;
933
934 if (!y->objects_listed)
935 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; /* No reply received yet from GetManagedObjects */
936
937 if (!dbus_message_iter_init(m, &arg_i) || !pa_streq(dbus_message_get_signature(m), "oa{sa{sv}}")) {
938 pa_log_error("Invalid signature found in InterfacesAdded");
939 goto fail;
940 }
941
942 parse_interfaces_and_properties(y, &arg_i);
943
944 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
945 } else if (dbus_message_is_signal(m, "org.freedesktop.DBus.ObjectManager", "InterfacesRemoved")) {
946 const char *p;
947 DBusMessageIter arg_i;
948 DBusMessageIter element_i;
949
950 if (!y->objects_listed)
951 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; /* No reply received yet from GetManagedObjects */
952
953 if (!dbus_message_iter_init(m, &arg_i) || !pa_streq(dbus_message_get_signature(m), "oas")) {
954 pa_log_error("Invalid signature found in InterfacesRemoved");
955 goto fail;
956 }
957
958 dbus_message_iter_get_basic(&arg_i, &p);
959
960 pa_assert_se(dbus_message_iter_next(&arg_i));
961 pa_assert(dbus_message_iter_get_arg_type(&arg_i) == DBUS_TYPE_ARRAY);
962
963 dbus_message_iter_recurse(&arg_i, &element_i);
964
965 while (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_STRING) {
966 const char *iface;
967
968 dbus_message_iter_get_basic(&element_i, &iface);
969
970 if (pa_streq(iface, BLUEZ_DEVICE_INTERFACE))
971 device_remove(y, p);
972 else if (pa_streq(iface, BLUEZ_ADAPTER_INTERFACE))
973 adapter_remove(y, p);
974
975 dbus_message_iter_next(&element_i);
976 }
977
978 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
979
980 } else if (dbus_message_is_signal(m, "org.freedesktop.DBus.Properties", "PropertiesChanged")) {
981 DBusMessageIter arg_i;
982 const char *iface;
983
984 if (!y->objects_listed)
985 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; /* No reply received yet from GetManagedObjects */
986
987 if (!dbus_message_iter_init(m, &arg_i) || !pa_streq(dbus_message_get_signature(m), "sa{sv}as")) {
988 pa_log_error("Invalid signature found in PropertiesChanged");
989 goto fail;
990 }
991
992 dbus_message_iter_get_basic(&arg_i, &iface);
993
994 pa_assert_se(dbus_message_iter_next(&arg_i));
995 pa_assert(dbus_message_iter_get_arg_type(&arg_i) == DBUS_TYPE_ARRAY);
996
997 if (pa_streq(iface, BLUEZ_ADAPTER_INTERFACE)) {
998 pa_bluetooth_adapter *a;
999
1000 pa_log_debug("Properties changed in adapter %s", dbus_message_get_path(m));
1001
1002 if (!(a = pa_hashmap_get(y->adapters, dbus_message_get_path(m)))) {
1003 pa_log_warn("Properties changed in unknown adapter");
1004 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1005 }
1006
1007 parse_adapter_properties(a, &arg_i, true);
1008
1009 } else if (pa_streq(iface, BLUEZ_DEVICE_INTERFACE)) {
1010 pa_bluetooth_device *d;
1011
1012 pa_log_debug("Properties changed in device %s", dbus_message_get_path(m));
1013
1014 if (!(d = pa_hashmap_get(y->devices, dbus_message_get_path(m)))) {
1015 pa_log_warn("Properties changed in unknown device");
1016 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1017 }
1018
1019 if (d->device_info_valid != 1) {
1020 pa_log_warn("Properties changed in a device which information is unknown or invalid");
1021 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1022 }
1023
1024 parse_device_properties(d, &arg_i, true);
1025 } else if (pa_streq(iface, BLUEZ_MEDIA_TRANSPORT_INTERFACE)) {
1026 pa_bluetooth_transport *t;
1027
1028 pa_log_debug("Properties changed in transport %s", dbus_message_get_path(m));
1029
1030 if (!(t = pa_hashmap_get(y->transports, dbus_message_get_path(m))))
1031 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1032
1033 parse_transport_properties(t, &arg_i);
1034 }
1035
1036 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1037 }
1038
1039 fail:
1040 dbus_error_free(&err);
1041
1042 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1043 }
1044
1045 static uint8_t a2dp_default_bitpool(uint8_t freq, uint8_t mode) {
1046 /* These bitpool values were chosen based on the A2DP spec recommendation */
1047 switch (freq) {
1048 case SBC_SAMPLING_FREQ_16000:
1049 case SBC_SAMPLING_FREQ_32000:
1050 return 53;
1051
1052 case SBC_SAMPLING_FREQ_44100:
1053
1054 switch (mode) {
1055 case SBC_CHANNEL_MODE_MONO:
1056 case SBC_CHANNEL_MODE_DUAL_CHANNEL:
1057 return 31;
1058
1059 case SBC_CHANNEL_MODE_STEREO:
1060 case SBC_CHANNEL_MODE_JOINT_STEREO:
1061 return 53;
1062 }
1063
1064 pa_log_warn("Invalid channel mode %u", mode);
1065 return 53;
1066
1067 case SBC_SAMPLING_FREQ_48000:
1068
1069 switch (mode) {
1070 case SBC_CHANNEL_MODE_MONO:
1071 case SBC_CHANNEL_MODE_DUAL_CHANNEL:
1072 return 29;
1073
1074 case SBC_CHANNEL_MODE_STEREO:
1075 case SBC_CHANNEL_MODE_JOINT_STEREO:
1076 return 51;
1077 }
1078
1079 pa_log_warn("Invalid channel mode %u", mode);
1080 return 51;
1081 }
1082
1083 pa_log_warn("Invalid sampling freq %u", freq);
1084 return 53;
1085 }
1086
1087 const char *pa_bluetooth_profile_to_string(pa_bluetooth_profile_t profile) {
1088 switch(profile) {
1089 case PA_BLUETOOTH_PROFILE_A2DP_SINK:
1090 return "a2dp_sink";
1091 case PA_BLUETOOTH_PROFILE_A2DP_SOURCE:
1092 return "a2dp_source";
1093 case PA_BLUETOOTH_PROFILE_OFF:
1094 return "off";
1095 }
1096
1097 return NULL;
1098 }
1099
1100 static DBusMessage *endpoint_set_configuration(DBusConnection *conn, DBusMessage *m, void *userdata) {
1101 pa_bluetooth_discovery *y = userdata;
1102 pa_bluetooth_device *d;
1103 pa_bluetooth_transport *t;
1104 const char *sender, *path, *endpoint_path, *dev_path = NULL, *uuid = NULL;
1105 const uint8_t *config = NULL;
1106 int size = 0;
1107 pa_bluetooth_profile_t p = PA_BLUETOOTH_PROFILE_OFF;
1108 DBusMessageIter args, props;
1109 DBusMessage *r;
1110
1111 if (!dbus_message_iter_init(m, &args) || !pa_streq(dbus_message_get_signature(m), "oa{sv}")) {
1112 pa_log_error("Invalid signature for method SetConfiguration()");
1113 goto fail2;
1114 }
1115
1116 dbus_message_iter_get_basic(&args, &path);
1117
1118 if (pa_hashmap_get(y->transports, path)) {
1119 pa_log_error("Endpoint SetConfiguration(): Transport %s is already configured.", path);
1120 goto fail2;
1121 }
1122
1123 pa_assert_se(dbus_message_iter_next(&args));
1124
1125 dbus_message_iter_recurse(&args, &props);
1126 if (dbus_message_iter_get_arg_type(&props) != DBUS_TYPE_DICT_ENTRY)
1127 goto fail;
1128
1129 /* Read transport properties */
1130 while (dbus_message_iter_get_arg_type(&props) == DBUS_TYPE_DICT_ENTRY) {
1131 const char *key;
1132 DBusMessageIter value, entry;
1133 int var;
1134
1135 dbus_message_iter_recurse(&props, &entry);
1136 dbus_message_iter_get_basic(&entry, &key);
1137
1138 dbus_message_iter_next(&entry);
1139 dbus_message_iter_recurse(&entry, &value);
1140
1141 var = dbus_message_iter_get_arg_type(&value);
1142
1143 if (pa_streq(key, "UUID")) {
1144 if (var != DBUS_TYPE_STRING) {
1145 pa_log_error("Property %s of wrong type %c", key, (char)var);
1146 goto fail;
1147 }
1148
1149 dbus_message_iter_get_basic(&value, &uuid);
1150
1151 endpoint_path = dbus_message_get_path(m);
1152 if (pa_streq(endpoint_path, A2DP_SOURCE_ENDPOINT)) {
1153 if (pa_streq(uuid, PA_BLUETOOTH_UUID_A2DP_SOURCE))
1154 p = PA_BLUETOOTH_PROFILE_A2DP_SINK;
1155 } else if (pa_streq(endpoint_path, A2DP_SINK_ENDPOINT)) {
1156 if (pa_streq(uuid, PA_BLUETOOTH_UUID_A2DP_SINK))
1157 p = PA_BLUETOOTH_PROFILE_A2DP_SOURCE;
1158 }
1159
1160 if (p == PA_BLUETOOTH_PROFILE_OFF) {
1161 pa_log_error("UUID %s of transport %s incompatible with endpoint %s", uuid, path, endpoint_path);
1162 goto fail;
1163 }
1164 } else if (pa_streq(key, "Device")) {
1165 if (var != DBUS_TYPE_OBJECT_PATH) {
1166 pa_log_error("Property %s of wrong type %c", key, (char)var);
1167 goto fail;
1168 }
1169
1170 dbus_message_iter_get_basic(&value, &dev_path);
1171 } else if (pa_streq(key, "Configuration")) {
1172 DBusMessageIter array;
1173 a2dp_sbc_t *c;
1174
1175 if (var != DBUS_TYPE_ARRAY) {
1176 pa_log_error("Property %s of wrong type %c", key, (char)var);
1177 goto fail;
1178 }
1179
1180 dbus_message_iter_recurse(&value, &array);
1181 var = dbus_message_iter_get_arg_type(&array);
1182 if (var != DBUS_TYPE_BYTE) {
1183 pa_log_error("%s is an array of wrong type %c", key, (char)var);
1184 goto fail;
1185 }
1186
1187 dbus_message_iter_get_fixed_array(&array, &config, &size);
1188 if (size != sizeof(a2dp_sbc_t)) {
1189 pa_log_error("Configuration array of invalid size");
1190 goto fail;
1191 }
1192
1193 c = (a2dp_sbc_t *) config;
1194
1195 if (c->frequency != SBC_SAMPLING_FREQ_16000 && c->frequency != SBC_SAMPLING_FREQ_32000 &&
1196 c->frequency != SBC_SAMPLING_FREQ_44100 && c->frequency != SBC_SAMPLING_FREQ_48000) {
1197 pa_log_error("Invalid sampling frequency in configuration");
1198 goto fail;
1199 }
1200
1201 if (c->channel_mode != SBC_CHANNEL_MODE_MONO && c->channel_mode != SBC_CHANNEL_MODE_DUAL_CHANNEL &&
1202 c->channel_mode != SBC_CHANNEL_MODE_STEREO && c->channel_mode != SBC_CHANNEL_MODE_JOINT_STEREO) {
1203 pa_log_error("Invalid channel mode in configuration");
1204 goto fail;
1205 }
1206
1207 if (c->allocation_method != SBC_ALLOCATION_SNR && c->allocation_method != SBC_ALLOCATION_LOUDNESS) {
1208 pa_log_error("Invalid allocation method in configuration");
1209 goto fail;
1210 }
1211
1212 if (c->subbands != SBC_SUBBANDS_4 && c->subbands != SBC_SUBBANDS_8) {
1213 pa_log_error("Invalid SBC subbands in configuration");
1214 goto fail;
1215 }
1216
1217 if (c->block_length != SBC_BLOCK_LENGTH_4 && c->block_length != SBC_BLOCK_LENGTH_8 &&
1218 c->block_length != SBC_BLOCK_LENGTH_12 && c->block_length != SBC_BLOCK_LENGTH_16) {
1219 pa_log_error("Invalid block length in configuration");
1220 goto fail;
1221 }
1222 }
1223
1224 dbus_message_iter_next(&props);
1225 }
1226
1227 if ((d = pa_hashmap_get(y->devices, dev_path))) {
1228 if (d->device_info_valid == -1) {
1229 pa_log_error("Information about device %s is invalid", dev_path);
1230 goto fail2;
1231 }
1232 } else {
1233 /* InterfacesAdded signal is probably on it's way, device_info_valid is kept as 0. */
1234 pa_log_warn("SetConfiguration() received for unknown device %s", dev_path);
1235 d = device_create(y, dev_path);
1236 }
1237
1238 if (d->transports[p] != NULL) {
1239 pa_log_error("Cannot configure transport %s because profile %s is already used", path, pa_bluetooth_profile_to_string(p));
1240 goto fail2;
1241 }
1242
1243 sender = dbus_message_get_sender(m);
1244
1245 pa_assert_se(r = dbus_message_new_method_return(m));
1246 pa_assert_se(dbus_connection_send(pa_dbus_connection_get(y->connection), r, NULL));
1247 dbus_message_unref(r);
1248
1249 d->transports[p] = t = pa_bluetooth_transport_new(d, sender, path, p, config, size);
1250 t->acquire = bluez5_transport_acquire_cb;
1251 t->release = bluez5_transport_release_cb;
1252 pa_bluetooth_transport_put(t);
1253
1254 pa_log_debug("Transport %s available for profile %s", t->path, pa_bluetooth_profile_to_string(t->profile));
1255
1256 return NULL;
1257
1258 fail:
1259 pa_log_error("Endpoint SetConfiguration(): invalid arguments");
1260
1261 fail2:
1262 pa_assert_se(r = dbus_message_new_error(m, "org.bluez.Error.InvalidArguments", "Unable to set configuration"));
1263 return r;
1264 }
1265
1266 static DBusMessage *endpoint_select_configuration(DBusConnection *conn, DBusMessage *m, void *userdata) {
1267 pa_bluetooth_discovery *y = userdata;
1268 a2dp_sbc_t *cap, config;
1269 uint8_t *pconf = (uint8_t *) &config;
1270 int i, size;
1271 DBusMessage *r;
1272 DBusError err;
1273
1274 static const struct {
1275 uint32_t rate;
1276 uint8_t cap;
1277 } freq_table[] = {
1278 { 16000U, SBC_SAMPLING_FREQ_16000 },
1279 { 32000U, SBC_SAMPLING_FREQ_32000 },
1280 { 44100U, SBC_SAMPLING_FREQ_44100 },
1281 { 48000U, SBC_SAMPLING_FREQ_48000 }
1282 };
1283
1284 dbus_error_init(&err);
1285
1286 if (!dbus_message_get_args(m, &err, DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE, &cap, &size, DBUS_TYPE_INVALID)) {
1287 pa_log_error("Endpoint SelectConfiguration(): %s", err.message);
1288 dbus_error_free(&err);
1289 goto fail;
1290 }
1291
1292 if (size != sizeof(config)) {
1293 pa_log_error("Capabilities array has invalid size");
1294 goto fail;
1295 }
1296
1297 pa_zero(config);
1298
1299 /* Find the lowest freq that is at least as high as the requested sampling rate */
1300 for (i = 0; (unsigned) i < PA_ELEMENTSOF(freq_table); i++)
1301 if (freq_table[i].rate >= y->core->default_sample_spec.rate && (cap->frequency & freq_table[i].cap)) {
1302 config.frequency = freq_table[i].cap;
1303 break;
1304 }
1305
1306 if ((unsigned) i == PA_ELEMENTSOF(freq_table)) {
1307 for (--i; i >= 0; i--) {
1308 if (cap->frequency & freq_table[i].cap) {
1309 config.frequency = freq_table[i].cap;
1310 break;
1311 }
1312 }
1313
1314 if (i < 0) {
1315 pa_log_error("Not suitable sample rate");
1316 goto fail;
1317 }
1318 }
1319
1320 pa_assert((unsigned) i < PA_ELEMENTSOF(freq_table));
1321
1322 if (y->core->default_sample_spec.channels <= 1) {
1323 if (cap->channel_mode & SBC_CHANNEL_MODE_MONO)
1324 config.channel_mode = SBC_CHANNEL_MODE_MONO;
1325 else if (cap->channel_mode & SBC_CHANNEL_MODE_JOINT_STEREO)
1326 config.channel_mode = SBC_CHANNEL_MODE_JOINT_STEREO;
1327 else if (cap->channel_mode & SBC_CHANNEL_MODE_STEREO)
1328 config.channel_mode = SBC_CHANNEL_MODE_STEREO;
1329 else if (cap->channel_mode & SBC_CHANNEL_MODE_DUAL_CHANNEL)
1330 config.channel_mode = SBC_CHANNEL_MODE_DUAL_CHANNEL;
1331 else {
1332 pa_log_error("No supported channel modes");
1333 goto fail;
1334 }
1335 }
1336
1337 if (y->core->default_sample_spec.channels >= 2) {
1338 if (cap->channel_mode & SBC_CHANNEL_MODE_JOINT_STEREO)
1339 config.channel_mode = SBC_CHANNEL_MODE_JOINT_STEREO;
1340 else if (cap->channel_mode & SBC_CHANNEL_MODE_STEREO)
1341 config.channel_mode = SBC_CHANNEL_MODE_STEREO;
1342 else if (cap->channel_mode & SBC_CHANNEL_MODE_DUAL_CHANNEL)
1343 config.channel_mode = SBC_CHANNEL_MODE_DUAL_CHANNEL;
1344 else if (cap->channel_mode & SBC_CHANNEL_MODE_MONO)
1345 config.channel_mode = SBC_CHANNEL_MODE_MONO;
1346 else {
1347 pa_log_error("No supported channel modes");
1348 goto fail;
1349 }
1350 }
1351
1352 if (cap->block_length & SBC_BLOCK_LENGTH_16)
1353 config.block_length = SBC_BLOCK_LENGTH_16;
1354 else if (cap->block_length & SBC_BLOCK_LENGTH_12)
1355 config.block_length = SBC_BLOCK_LENGTH_12;
1356 else if (cap->block_length & SBC_BLOCK_LENGTH_8)
1357 config.block_length = SBC_BLOCK_LENGTH_8;
1358 else if (cap->block_length & SBC_BLOCK_LENGTH_4)
1359 config.block_length = SBC_BLOCK_LENGTH_4;
1360 else {
1361 pa_log_error("No supported block lengths");
1362 goto fail;
1363 }
1364
1365 if (cap->subbands & SBC_SUBBANDS_8)
1366 config.subbands = SBC_SUBBANDS_8;
1367 else if (cap->subbands & SBC_SUBBANDS_4)
1368 config.subbands = SBC_SUBBANDS_4;
1369 else {
1370 pa_log_error("No supported subbands");
1371 goto fail;
1372 }
1373
1374 if (cap->allocation_method & SBC_ALLOCATION_LOUDNESS)
1375 config.allocation_method = SBC_ALLOCATION_LOUDNESS;
1376 else if (cap->allocation_method & SBC_ALLOCATION_SNR)
1377 config.allocation_method = SBC_ALLOCATION_SNR;
1378
1379 config.min_bitpool = (uint8_t) PA_MAX(MIN_BITPOOL, cap->min_bitpool);
1380 config.max_bitpool = (uint8_t) PA_MIN(a2dp_default_bitpool(config.frequency, config.channel_mode), cap->max_bitpool);
1381
1382 if (config.min_bitpool > config.max_bitpool)
1383 goto fail;
1384
1385 pa_assert_se(r = dbus_message_new_method_return(m));
1386 pa_assert_se(dbus_message_append_args(r, DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE, &pconf, size, DBUS_TYPE_INVALID));
1387
1388 return r;
1389
1390 fail:
1391 pa_assert_se(r = dbus_message_new_error(m, "org.bluez.Error.InvalidArguments", "Unable to select configuration"));
1392 return r;
1393 }
1394
1395 static DBusMessage *endpoint_clear_configuration(DBusConnection *conn, DBusMessage *m, void *userdata) {
1396 pa_bluetooth_discovery *y = userdata;
1397 pa_bluetooth_transport *t;
1398 DBusMessage *r;
1399 DBusError err;
1400 const char *path;
1401
1402 dbus_error_init(&err);
1403
1404 if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
1405 pa_log_error("Endpoint ClearConfiguration(): %s", err.message);
1406 dbus_error_free(&err);
1407 goto fail;
1408 }
1409
1410 if ((t = pa_hashmap_get(y->transports, path))) {
1411 pa_log_debug("Clearing transport %s profile %s", t->path, pa_bluetooth_profile_to_string(t->profile));
1412 transport_state_changed(t, PA_BLUETOOTH_TRANSPORT_STATE_DISCONNECTED);
1413 pa_bluetooth_transport_free(t);
1414 }
1415
1416 pa_assert_se(r = dbus_message_new_method_return(m));
1417
1418 return r;
1419
1420 fail:
1421 pa_assert_se(r = dbus_message_new_error(m, "org.bluez.Error.InvalidArguments", "Unable to clear configuration"));
1422 return r;
1423 }
1424
1425 static DBusMessage *endpoint_release(DBusConnection *conn, DBusMessage *m, void *userdata) {
1426 DBusMessage *r;
1427
1428 pa_assert_se(r = dbus_message_new_error(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE ".Error.NotImplemented",
1429 "Method not implemented"));
1430
1431 return r;
1432 }
1433
1434 static DBusHandlerResult endpoint_handler(DBusConnection *c, DBusMessage *m, void *userdata) {
1435 struct pa_bluetooth_discovery *y = userdata;
1436 DBusMessage *r = NULL;
1437 const char *path, *interface, *member;
1438
1439 pa_assert(y);
1440
1441 path = dbus_message_get_path(m);
1442 interface = dbus_message_get_interface(m);
1443 member = dbus_message_get_member(m);
1444
1445 pa_log_debug("dbus: path=%s, interface=%s, member=%s", path, interface, member);
1446
1447 if (!pa_streq(path, A2DP_SOURCE_ENDPOINT) && !pa_streq(path, A2DP_SINK_ENDPOINT))
1448 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1449
1450 if (dbus_message_is_method_call(m, "org.freedesktop.DBus.Introspectable", "Introspect")) {
1451 const char *xml = ENDPOINT_INTROSPECT_XML;
1452
1453 pa_assert_se(r = dbus_message_new_method_return(m));
1454 pa_assert_se(dbus_message_append_args(r, DBUS_TYPE_STRING, &xml, DBUS_TYPE_INVALID));
1455
1456 } else if (dbus_message_is_method_call(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE, "SetConfiguration"))
1457 r = endpoint_set_configuration(c, m, userdata);
1458 else if (dbus_message_is_method_call(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE, "SelectConfiguration"))
1459 r = endpoint_select_configuration(c, m, userdata);
1460 else if (dbus_message_is_method_call(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE, "ClearConfiguration"))
1461 r = endpoint_clear_configuration(c, m, userdata);
1462 else if (dbus_message_is_method_call(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE, "Release"))
1463 r = endpoint_release(c, m, userdata);
1464 else
1465 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1466
1467 if (r) {
1468 pa_assert_se(dbus_connection_send(pa_dbus_connection_get(y->connection), r, NULL));
1469 dbus_message_unref(r);
1470 }
1471
1472 return DBUS_HANDLER_RESULT_HANDLED;
1473 }
1474
1475 static void endpoint_init(pa_bluetooth_discovery *y, pa_bluetooth_profile_t profile) {
1476 static const DBusObjectPathVTable vtable_endpoint = {
1477 .message_function = endpoint_handler,
1478 };
1479
1480 pa_assert(y);
1481
1482 switch(profile) {
1483 case PA_BLUETOOTH_PROFILE_A2DP_SINK:
1484 pa_assert_se(dbus_connection_register_object_path(pa_dbus_connection_get(y->connection), A2DP_SOURCE_ENDPOINT,
1485 &vtable_endpoint, y));
1486 break;
1487 case PA_BLUETOOTH_PROFILE_A2DP_SOURCE:
1488 pa_assert_se(dbus_connection_register_object_path(pa_dbus_connection_get(y->connection), A2DP_SINK_ENDPOINT,
1489 &vtable_endpoint, y));
1490 break;
1491 default:
1492 pa_assert_not_reached();
1493 break;
1494 }
1495 }
1496
1497 static void endpoint_done(pa_bluetooth_discovery *y, pa_bluetooth_profile_t profile) {
1498 pa_assert(y);
1499
1500 switch(profile) {
1501 case PA_BLUETOOTH_PROFILE_A2DP_SINK:
1502 dbus_connection_unregister_object_path(pa_dbus_connection_get(y->connection), A2DP_SOURCE_ENDPOINT);
1503 break;
1504 case PA_BLUETOOTH_PROFILE_A2DP_SOURCE:
1505 dbus_connection_unregister_object_path(pa_dbus_connection_get(y->connection), A2DP_SINK_ENDPOINT);
1506 break;
1507 default:
1508 pa_assert_not_reached();
1509 break;
1510 }
1511 }
1512
1513 pa_bluetooth_discovery* pa_bluetooth_discovery_get(pa_core *c) {
1514 pa_bluetooth_discovery *y;
1515 DBusError err;
1516 DBusConnection *conn;
1517 unsigned i;
1518
1519 y = pa_xnew0(pa_bluetooth_discovery, 1);
1520 PA_REFCNT_INIT(y);
1521 y->core = c;
1522 y->adapters = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL,
1523 (pa_free_cb_t) adapter_free);
1524 y->devices = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL,
1525 (pa_free_cb_t) device_free);
1526 y->transports = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
1527 PA_LLIST_HEAD_INIT(pa_dbus_pending, y->pending);
1528
1529 for (i = 0; i < PA_BLUETOOTH_HOOK_MAX; i++)
1530 pa_hook_init(&y->hooks[i], y);
1531
1532 pa_shared_set(c, "bluetooth-discovery", y);
1533
1534 dbus_error_init(&err);
1535
1536 if (!(y->connection = pa_dbus_bus_get(y->core, DBUS_BUS_SYSTEM, &err))) {
1537 pa_log_error("Failed to get D-Bus connection: %s", err.message);
1538 goto fail;
1539 }
1540
1541 conn = pa_dbus_connection_get(y->connection);
1542
1543 /* dynamic detection of bluetooth audio devices */
1544 if (!dbus_connection_add_filter(conn, filter_cb, y, NULL)) {
1545 pa_log_error("Failed to add filter function");
1546 goto fail;
1547 }
1548 y->filter_added = true;
1549
1550 if (pa_dbus_add_matches(conn, &err,
1551 "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged'"
1552 ",arg0='" BLUEZ_SERVICE "'",
1553 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.ObjectManager',member='InterfacesAdded'",
1554 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.ObjectManager',"
1555 "member='InterfacesRemoved'",
1556 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.Properties',member='PropertiesChanged'"
1557 ",arg0='" BLUEZ_ADAPTER_INTERFACE "'",
1558 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.Properties',member='PropertiesChanged'"
1559 ",arg0='" BLUEZ_DEVICE_INTERFACE "'",
1560 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.Properties',member='PropertiesChanged'"
1561 ",arg0='" BLUEZ_MEDIA_TRANSPORT_INTERFACE "'",
1562 NULL) < 0) {
1563 pa_log_error("Failed to add D-Bus matches: %s", err.message);
1564 goto fail;
1565 }
1566 y->matches_added = true;
1567
1568 endpoint_init(y, PA_BLUETOOTH_PROFILE_A2DP_SINK);
1569 endpoint_init(y, PA_BLUETOOTH_PROFILE_A2DP_SOURCE);
1570
1571 get_managed_objects(y);
1572
1573 return y;
1574
1575 fail:
1576 pa_bluetooth_discovery_unref(y);
1577 dbus_error_free(&err);
1578
1579 return NULL;
1580 }
1581
1582 pa_bluetooth_discovery* pa_bluetooth_discovery_ref(pa_bluetooth_discovery *y) {
1583 pa_assert(y);
1584 pa_assert(PA_REFCNT_VALUE(y) > 0);
1585
1586 PA_REFCNT_INC(y);
1587
1588 return y;
1589 }
1590
1591 void pa_bluetooth_discovery_unref(pa_bluetooth_discovery *y) {
1592 pa_assert(y);
1593 pa_assert(PA_REFCNT_VALUE(y) > 0);
1594
1595 if (PA_REFCNT_DEC(y) > 0)
1596 return;
1597
1598 pa_dbus_free_pending_list(&y->pending);
1599
1600 if (y->devices)
1601 pa_hashmap_free(y->devices);
1602
1603 if (y->adapters)
1604 pa_hashmap_free(y->adapters);
1605
1606 if (y->transports) {
1607 pa_assert(pa_hashmap_isempty(y->transports));
1608 pa_hashmap_free(y->transports);
1609 }
1610
1611 if (y->connection) {
1612
1613 if (y->matches_added)
1614 pa_dbus_remove_matches(pa_dbus_connection_get(y->connection),
1615 "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',"
1616 "arg0='" BLUEZ_SERVICE "'",
1617 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.ObjectManager',"
1618 "member='InterfacesAdded'",
1619 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.ObjectManager',"
1620 "member='InterfacesRemoved'",
1621 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.Properties',"
1622 "member='PropertiesChanged',arg0='" BLUEZ_ADAPTER_INTERFACE "'",
1623 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.Properties',"
1624 "member='PropertiesChanged',arg0='" BLUEZ_DEVICE_INTERFACE "'",
1625 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.Properties',"
1626 "member='PropertiesChanged',arg0='" BLUEZ_MEDIA_TRANSPORT_INTERFACE "'",
1627 NULL);
1628
1629 if (y->filter_added)
1630 dbus_connection_remove_filter(pa_dbus_connection_get(y->connection), filter_cb, y);
1631
1632 endpoint_done(y, PA_BLUETOOTH_PROFILE_A2DP_SINK);
1633 endpoint_done(y, PA_BLUETOOTH_PROFILE_A2DP_SOURCE);
1634
1635 pa_dbus_connection_unref(y->connection);
1636 }
1637
1638 pa_shared_remove(y->core, "bluetooth-discovery");
1639 pa_xfree(y);
1640 }