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