code.delx.au - pulseaudio/blob - 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 pa_bluetooth_device* device_create(pa_bluetooth_discovery *y, const char *path) {
 292     pa_bluetooth_device *d;
 293
 294     pa_assert(y);
 295     pa_assert(path);
 296
 297     d = pa_xnew0(pa_bluetooth_device, 1);
 298     d->discovery = y;
 299     d->path = pa_xstrdup(path);
 300
 301     pa_hashmap_put(y->devices, d->path, d);
 302
 303     return d;
 304 }
 305
 306 pa_bluetooth_device* pa_bluetooth_discovery_get_device_by_path(pa_bluetooth_discovery *y, const char *path) {
 307     pa_bluetooth_device *d;
 308
 309     pa_assert(y);
 310     pa_assert(PA_REFCNT_VALUE(y) > 0);
 311     pa_assert(path);
 312
 313     if ((d = pa_hashmap_get(y->devices, path)))
 314         if (d->device_info_valid == 1)
 315             return d;
 316
 317     return NULL;
 318 }
 319
 320 pa_bluetooth_device* pa_bluetooth_discovery_get_device_by_address(pa_bluetooth_discovery *y, const char *remote, const char *local) {
 321     pa_bluetooth_device *d;
 322     void *state = NULL;
 323
 324     pa_assert(y);
 325     pa_assert(PA_REFCNT_VALUE(y) > 0);
 326     pa_assert(remote);
 327     pa_assert(local);
 328
 329     while ((d = pa_hashmap_iterate(y->devices, &state, NULL)))
 330         if (pa_streq(d->address, remote) && pa_streq(d->adapter->address, local))
 331             return d->device_info_valid == 1 ? d : NULL;
 332
 333     return NULL;
 334 }
 335
 336 static void device_free(pa_bluetooth_device *d) {
 337     unsigned i;
 338
 339     pa_assert(d);
 340
 341     for (i = 0; i < PA_BLUETOOTH_PROFILE_COUNT; i++) {
 342         pa_bluetooth_transport *t;
 343
 344         if (!(t = d->transports[i]))
 345             continue;
 346
 347         transport_state_changed(t, PA_BLUETOOTH_TRANSPORT_STATE_DISCONNECTED);
 348         pa_bluetooth_transport_free(t);
 349     }
 350
 351     d->discovery = NULL;
 352     d->adapter = NULL;
 353     pa_xfree(d->path);
 354     pa_xfree(d->alias);
 355     pa_xfree(d->address);
 356     pa_xfree(d);
 357 }
 358
 359 static void device_remove(pa_bluetooth_discovery *y, const char *path) {
 360     pa_bluetooth_device *d;
 361
 362     if (!(d = pa_hashmap_remove(y->devices, path)))
 363         pa_log_warn("Unknown device removed %s", path);
 364     else {
 365         pa_log_debug("Device %s removed", path);
 366         device_free(d);
 367     }
 368 }
 369
 370 static void device_remove_all(pa_bluetooth_discovery *y) {
 371     pa_bluetooth_device *d;
 372
 373     pa_assert(y);
 374
 375     while ((d = pa_hashmap_steal_first(y->devices))) {
 376         d->device_info_valid = -1;
 377         pa_hook_fire(&y->hooks[PA_BLUETOOTH_HOOK_DEVICE_CONNECTION_CHANGED], d);
 378         device_free(d);
 379    }
 380 }
 381
 382 static pa_bluetooth_adapter* adapter_create(pa_bluetooth_discovery *y, const char *path) {
 383     pa_bluetooth_adapter *a;
 384
 385     pa_assert(y);
 386     pa_assert(path);
 387
 388     a = pa_xnew0(pa_bluetooth_adapter, 1);
 389     a->discovery = y;
 390     a->path = pa_xstrdup(path);
 391
 392     pa_hashmap_put(y->adapters, a->path, a);
 393
 394     return a;
 395 }
 396
 397 static void adapter_free(pa_bluetooth_adapter *a) {
 398     pa_bluetooth_device *d;
 399     void *state;
 400
 401     pa_assert(a);
 402     pa_assert(a->discovery);
 403
 404     PA_HASHMAP_FOREACH(d, a->discovery->devices, state)
 405         if (d->adapter == a)
 406             d->adapter = NULL;
 407
 408     pa_xfree(a->path);
 409     pa_xfree(a->address);
 410     pa_xfree(a);
 411 }
 412
 413 static void adapter_remove(pa_bluetooth_discovery *y, const char *path) {
 414     pa_bluetooth_adapter *a;
 415
 416     if (!(a = pa_hashmap_remove(y->adapters, path)))
 417         pa_log_warn("Unknown adapter removed %s", path);
 418     else {
 419         pa_log_debug("Adapter %s removed", path);
 420         adapter_free(a);
 421     }
 422 }
 423
 424 static void adapter_remove_all(pa_bluetooth_discovery *y) {
 425     pa_bluetooth_adapter *a;
 426
 427     pa_assert(y);
 428
 429     /* When this function is called all devices have already been freed */
 430
 431     while ((a = pa_hashmap_steal_first(y->adapters)))
 432         adapter_free(a);
 433 }
 434
 435 static void parse_adapter_properties(pa_bluetooth_adapter *a, DBusMessageIter *i, bool is_property_change) {
 436     DBusMessageIter element_i;
 437
 438     pa_assert(a);
 439
 440     dbus_message_iter_recurse(i, &element_i);
 441
 442     while (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
 443         DBusMessageIter dict_i, variant_i;
 444         const char *key;
 445
 446         dbus_message_iter_recurse(&element_i, &dict_i);
 447
 448         key = check_variant_property(&dict_i);
 449         if (key == NULL) {
 450             pa_log_error("Received invalid property for adapter %s", a->path);
 451             return;
 452         }
 453
 454         dbus_message_iter_recurse(&dict_i, &variant_i);
 455
 456         if (dbus_message_iter_get_arg_type(&variant_i) == DBUS_TYPE_STRING && pa_streq(key, "Address")) {
 457             char *value;
 458
 459             if (is_property_change) {
 460                 pa_log_warn("Adapter property 'Address' expected to be constant but changed for %s, ignoring", a->path);
 461                 return;
 462             }
 463
 464             if (a->address) {
 465                 pa_log_warn("Adapter %s received a duplicate 'Address' property, ignoring", a->path);
 466                 return;
 467             }
 468
 469             dbus_message_iter_get_basic(&variant_i, &value);
 470             a->address = pa_xstrdup(value);
 471         }
 472
 473         dbus_message_iter_next(&element_i);
 474     }
 475 }
 476
 477 static void register_endpoint_reply(DBusPendingCall *pending, void *userdata) {
 478     DBusMessage *r;
 479     pa_dbus_pending *p;
 480     pa_bluetooth_discovery *y;
 481     char *endpoint;
 482
 483     pa_assert(pending);
 484     pa_assert_se(p = userdata);
 485     pa_assert_se(y = p->context_data);
 486     pa_assert_se(endpoint = p->call_data);
 487     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 488
 489     if (dbus_message_is_error(r, BLUEZ_ERROR_NOT_SUPPORTED)) {
 490         pa_log_info("Couldn't register endpoint %s because it is disabled in BlueZ", endpoint);
 491         goto finish;
 492     }
 493
 494     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 495         pa_log_error(BLUEZ_MEDIA_INTERFACE ".RegisterEndpoint() failed: %s: %s", dbus_message_get_error_name(r),
 496                      pa_dbus_get_error_message(r));
 497         goto finish;
 498     }
 499
 500 finish:
 501     dbus_message_unref(r);
 502
 503     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 504     pa_dbus_pending_free(p);
 505
 506     pa_xfree(endpoint);
 507 }
 508
 509 static void register_endpoint(pa_bluetooth_discovery *y, const char *path, const char *endpoint, const char *uuid) {
 510     DBusMessage *m;
 511     DBusMessageIter i, d;
 512     uint8_t codec = 0;
 513
 514     pa_log_debug("Registering %s on adapter %s", endpoint, path);
 515
 516     pa_assert_se(m = dbus_message_new_method_call(BLUEZ_SERVICE, path, BLUEZ_MEDIA_INTERFACE, "RegisterEndpoint"));
 517
 518     dbus_message_iter_init_append(m, &i);
 519     dbus_message_iter_append_basic(&i, DBUS_TYPE_OBJECT_PATH, &endpoint);
 520     dbus_message_iter_open_container(&i, DBUS_TYPE_ARRAY, DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING DBUS_TYPE_STRING_AS_STRING
 521                                          DBUS_TYPE_VARIANT_AS_STRING DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &d);
 522     pa_dbus_append_basic_variant_dict_entry(&d, "UUID", DBUS_TYPE_STRING, &uuid);
 523     pa_dbus_append_basic_variant_dict_entry(&d, "Codec", DBUS_TYPE_BYTE, &codec);
 524
 525     if (pa_streq(uuid, PA_BLUETOOTH_UUID_A2DP_SOURCE) || pa_streq(uuid, PA_BLUETOOTH_UUID_A2DP_SINK)) {
 526         a2dp_sbc_t capabilities;
 527
 528         capabilities.channel_mode = SBC_CHANNEL_MODE_MONO | SBC_CHANNEL_MODE_DUAL_CHANNEL | SBC_CHANNEL_MODE_STEREO |
 529                                     SBC_CHANNEL_MODE_JOINT_STEREO;
 530         capabilities.frequency = SBC_SAMPLING_FREQ_16000 | SBC_SAMPLING_FREQ_32000 | SBC_SAMPLING_FREQ_44100 |
 531                                  SBC_SAMPLING_FREQ_48000;
 532         capabilities.allocation_method = SBC_ALLOCATION_SNR | SBC_ALLOCATION_LOUDNESS;
 533         capabilities.subbands = SBC_SUBBANDS_4 | SBC_SUBBANDS_8;
 534         capabilities.block_length = SBC_BLOCK_LENGTH_4 | SBC_BLOCK_LENGTH_8 | SBC_BLOCK_LENGTH_12 | SBC_BLOCK_LENGTH_16;
 535         capabilities.min_bitpool = MIN_BITPOOL;
 536         capabilities.max_bitpool = MAX_BITPOOL;
 537
 538         pa_dbus_append_basic_array_variant_dict_entry(&d, "Capabilities", DBUS_TYPE_BYTE, &capabilities, sizeof(capabilities));
 539     }
 540
 541     dbus_message_iter_close_container(&i, &d);
 542
 543     send_and_add_to_pending(y, m, register_endpoint_reply, pa_xstrdup(endpoint));
 544 }
 545
 546 static void parse_interfaces_and_properties(pa_bluetooth_discovery *y, DBusMessageIter *dict_i) {
 547     DBusMessageIter element_i;
 548     const char *path;
 549
 550     pa_assert(dbus_message_iter_get_arg_type(dict_i) == DBUS_TYPE_OBJECT_PATH);
 551     dbus_message_iter_get_basic(dict_i, &path);
 552
 553     pa_assert_se(dbus_message_iter_next(dict_i));
 554     pa_assert(dbus_message_iter_get_arg_type(dict_i) == DBUS_TYPE_ARRAY);
 555
 556     dbus_message_iter_recurse(dict_i, &element_i);
 557
 558     while (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
 559         DBusMessageIter iface_i;
 560         const char *interface;
 561
 562         dbus_message_iter_recurse(&element_i, &iface_i);
 563
 564         pa_assert(dbus_message_iter_get_arg_type(&iface_i) == DBUS_TYPE_STRING);
 565         dbus_message_iter_get_basic(&iface_i, &interface);
 566
 567         pa_assert_se(dbus_message_iter_next(&iface_i));
 568         pa_assert(dbus_message_iter_get_arg_type(&iface_i) == DBUS_TYPE_ARRAY);
 569
 570         if (pa_streq(interface, BLUEZ_ADAPTER_INTERFACE)) {
 571             pa_bluetooth_adapter *a;
 572
 573             if ((a = pa_hashmap_get(y->adapters, path))) {
 574                 pa_log_error("Found duplicated D-Bus path for device %s", path);
 575                 return;
 576             } else
 577                 a = adapter_create(y, path);
 578
 579             pa_log_debug("Adapter %s found", path);
 580
 581             parse_adapter_properties(a, &iface_i, false);
 582             if (!a->address)
 583                 return;
 584
 585             register_endpoint(y, path, A2DP_SOURCE_ENDPOINT, PA_BLUETOOTH_UUID_A2DP_SOURCE);
 586             register_endpoint(y, path, A2DP_SINK_ENDPOINT, PA_BLUETOOTH_UUID_A2DP_SINK);
 587
 588         } else if (pa_streq(interface, BLUEZ_DEVICE_INTERFACE)) {
 589             pa_bluetooth_device *d;
 590
 591             if ((d = pa_hashmap_get(y->devices, path))) {
 592                 if (d->device_info_valid != 0) {
 593                     pa_log_error("Found duplicated D-Bus path for device %s", path);
 594                     return;
 595                 }
 596             } else
 597                 d = device_create(y, path);
 598
 599             pa_log_debug("Device %s found", d->path);
 600
 601             /* TODO: parse device properties */
 602
 603         } else
 604             pa_log_debug("Unknown interface %s found, skipping", interface);
 605
 606         dbus_message_iter_next(&element_i);
 607     }
 608
 609     return;
 610 }
 611
 612 static void get_managed_objects_reply(DBusPendingCall *pending, void *userdata) {
 613     pa_dbus_pending *p;
 614     pa_bluetooth_discovery *y;
 615     DBusMessage *r;
 616     DBusMessageIter arg_i, element_i;
 617
 618     pa_assert_se(p = userdata);
 619     pa_assert_se(y = p->context_data);
 620     pa_assert_se(r = dbus_pending_call_steal_reply(pending));
 621
 622     if (dbus_message_is_error(r, DBUS_ERROR_UNKNOWN_METHOD)) {
 623         pa_log_warn("BlueZ D-Bus ObjectManager not available");
 624         goto finish;
 625     }
 626
 627     if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
 628         pa_log_error("GetManagedObjects() failed: %s: %s", dbus_message_get_error_name(r), pa_dbus_get_error_message(r));
 629         goto finish;
 630     }
 631
 632     if (!dbus_message_iter_init(r, &arg_i) || !pa_streq(dbus_message_get_signature(r), "a{oa{sa{sv}}}")) {
 633         pa_log_error("Invalid reply signature for GetManagedObjects()");
 634         goto finish;
 635     }
 636
 637     dbus_message_iter_recurse(&arg_i, &element_i);
 638     while (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
 639         DBusMessageIter dict_i;
 640
 641         dbus_message_iter_recurse(&element_i, &dict_i);
 642
 643         parse_interfaces_and_properties(y, &dict_i);
 644
 645         dbus_message_iter_next(&element_i);
 646     }
 647
 648     y->objects_listed = true;
 649
 650 finish:
 651     dbus_message_unref(r);
 652
 653     PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
 654     pa_dbus_pending_free(p);
 655 }
 656
 657 static void get_managed_objects(pa_bluetooth_discovery *y) {
 658     DBusMessage *m;
 659
 660     pa_assert(y);
 661
 662     pa_assert_se(m = dbus_message_new_method_call(BLUEZ_SERVICE, "/", "org.freedesktop.DBus.ObjectManager",
 663                                                   "GetManagedObjects"));
 664     send_and_add_to_pending(y, m, get_managed_objects_reply, NULL);
 665 }
 666
 667 pa_hook* pa_bluetooth_discovery_hook(pa_bluetooth_discovery *y, pa_bluetooth_hook_t hook) {
 668     pa_assert(y);
 669     pa_assert(PA_REFCNT_VALUE(y) > 0);
 670
 671     return &y->hooks[hook];
 672 }
 673
 674 static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *userdata) {
 675     pa_bluetooth_discovery *y;
 676     DBusError err;
 677
 678     pa_assert(bus);
 679     pa_assert(m);
 680     pa_assert_se(y = userdata);
 681
 682     dbus_error_init(&err);
 683
 684     if (dbus_message_is_signal(m, "org.freedesktop.DBus", "NameOwnerChanged")) {
 685         const char *name, *old_owner, *new_owner;
 686
 687         if (!dbus_message_get_args(m, &err,
 688                                    DBUS_TYPE_STRING, &name,
 689                                    DBUS_TYPE_STRING, &old_owner,
 690                                    DBUS_TYPE_STRING, &new_owner,
 691                                    DBUS_TYPE_INVALID)) {
 692             pa_log_error("Failed to parse org.freedesktop.DBus.NameOwnerChanged: %s", err.message);
 693             goto fail;
 694         }
 695
 696         if (pa_streq(name, BLUEZ_SERVICE)) {
 697             if (old_owner && *old_owner) {
 698                 pa_log_debug("Bluetooth daemon disappeared");
 699                 device_remove_all(y);
 700                 adapter_remove_all(y);
 701                 y->objects_listed = false;
 702             }
 703
 704             if (new_owner && *new_owner) {
 705                 pa_log_debug("Bluetooth daemon appeared");
 706                 get_managed_objects(y);
 707             }
 708         }
 709
 710         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 711     } else if (dbus_message_is_signal(m, "org.freedesktop.DBus.ObjectManager", "InterfacesAdded")) {
 712         DBusMessageIter arg_i;
 713
 714         if (!y->objects_listed)
 715             return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; /* No reply received yet from GetManagedObjects */
 716
 717         if (!dbus_message_iter_init(m, &arg_i) || !pa_streq(dbus_message_get_signature(m), "oa{sa{sv}}")) {
 718             pa_log_error("Invalid signature found in InterfacesAdded");
 719             goto fail;
 720         }
 721
 722         parse_interfaces_and_properties(y, &arg_i);
 723
 724         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 725     } else if (dbus_message_is_signal(m, "org.freedesktop.DBus.ObjectManager", "InterfacesRemoved")) {
 726         const char *p;
 727         DBusMessageIter arg_i;
 728         DBusMessageIter element_i;
 729
 730         if (!y->objects_listed)
 731             return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; /* No reply received yet from GetManagedObjects */
 732
 733         if (!dbus_message_iter_init(m, &arg_i) || !pa_streq(dbus_message_get_signature(m), "oas")) {
 734             pa_log_error("Invalid signature found in InterfacesRemoved");
 735             goto fail;
 736         }
 737
 738         dbus_message_iter_get_basic(&arg_i, &p);
 739
 740         pa_assert_se(dbus_message_iter_next(&arg_i));
 741         pa_assert(dbus_message_iter_get_arg_type(&arg_i) == DBUS_TYPE_ARRAY);
 742
 743         dbus_message_iter_recurse(&arg_i, &element_i);
 744
 745         while (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_STRING) {
 746             const char *iface;
 747
 748             dbus_message_iter_get_basic(&element_i, &iface);
 749
 750             if (pa_streq(iface, BLUEZ_DEVICE_INTERFACE))
 751                 device_remove(y, p);
 752             else if (pa_streq(iface, BLUEZ_ADAPTER_INTERFACE))
 753                 adapter_remove(y, p);
 754
 755             dbus_message_iter_next(&element_i);
 756         }
 757
 758         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 759
 760     } else if (dbus_message_is_signal(m, "org.freedesktop.DBus.Properties", "PropertiesChanged")) {
 761         DBusMessageIter arg_i;
 762         const char *iface;
 763
 764         if (!y->objects_listed)
 765             return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; /* No reply received yet from GetManagedObjects */
 766
 767         if (!dbus_message_iter_init(m, &arg_i) || !pa_streq(dbus_message_get_signature(m), "sa{sv}as")) {
 768             pa_log_error("Invalid signature found in PropertiesChanged");
 769             goto fail;
 770         }
 771
 772         dbus_message_iter_get_basic(&arg_i, &iface);
 773
 774         pa_assert_se(dbus_message_iter_next(&arg_i));
 775         pa_assert(dbus_message_iter_get_arg_type(&arg_i) == DBUS_TYPE_ARRAY);
 776
 777         if (pa_streq(iface, BLUEZ_ADAPTER_INTERFACE)) {
 778             pa_bluetooth_adapter *a;
 779
 780             pa_log_debug("Properties changed in adapter %s", dbus_message_get_path(m));
 781
 782             if (!(a = pa_hashmap_get(y->adapters, dbus_message_get_path(m)))) {
 783                 pa_log_warn("Properties changed in unknown adapter");
 784                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 785             }
 786
 787             parse_adapter_properties(a, &arg_i, true);
 788         }
 789
 790         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 791     }
 792
 793 fail:
 794     dbus_error_free(&err);
 795
 796     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 797 }
 798
 799 static uint8_t a2dp_default_bitpool(uint8_t freq, uint8_t mode) {
 800     /* These bitpool values were chosen based on the A2DP spec recommendation */
 801     switch (freq) {
 802         case SBC_SAMPLING_FREQ_16000:
 803         case SBC_SAMPLING_FREQ_32000:
 804             return 53;
 805
 806         case SBC_SAMPLING_FREQ_44100:
 807
 808             switch (mode) {
 809                 case SBC_CHANNEL_MODE_MONO:
 810                 case SBC_CHANNEL_MODE_DUAL_CHANNEL:
 811                     return 31;
 812
 813                 case SBC_CHANNEL_MODE_STEREO:
 814                 case SBC_CHANNEL_MODE_JOINT_STEREO:
 815                     return 53;
 816             }
 817
 818             pa_log_warn("Invalid channel mode %u", mode);
 819             return 53;
 820
 821         case SBC_SAMPLING_FREQ_48000:
 822
 823             switch (mode) {
 824                 case SBC_CHANNEL_MODE_MONO:
 825                 case SBC_CHANNEL_MODE_DUAL_CHANNEL:
 826                     return 29;
 827
 828                 case SBC_CHANNEL_MODE_STEREO:
 829                 case SBC_CHANNEL_MODE_JOINT_STEREO:
 830                     return 51;
 831             }
 832
 833             pa_log_warn("Invalid channel mode %u", mode);
 834             return 51;
 835     }
 836
 837     pa_log_warn("Invalid sampling freq %u", freq);
 838     return 53;
 839 }
 840
 841 const char *pa_bluetooth_profile_to_string(pa_bluetooth_profile_t profile) {
 842     switch(profile) {
 843         case PA_BLUETOOTH_PROFILE_A2DP_SINK:
 844             return "a2dp_sink";
 845         case PA_BLUETOOTH_PROFILE_A2DP_SOURCE:
 846             return "a2dp_source";
 847         case PA_BLUETOOTH_PROFILE_OFF:
 848             return "off";
 849     }
 850
 851     return NULL;
 852 }
 853
 854 static DBusMessage *endpoint_set_configuration(DBusConnection *conn, DBusMessage *m, void *userdata) {
 855     pa_bluetooth_discovery *y = userdata;
 856     pa_bluetooth_device *d;
 857     pa_bluetooth_transport *t;
 858     const char *sender, *path, *endpoint_path, *dev_path = NULL, *uuid = NULL;
 859     const uint8_t *config = NULL;
 860     int size = 0;
 861     pa_bluetooth_profile_t p = PA_BLUETOOTH_PROFILE_OFF;
 862     DBusMessageIter args, props;
 863     DBusMessage *r;
 864
 865     if (!dbus_message_iter_init(m, &args) || !pa_streq(dbus_message_get_signature(m), "oa{sv}")) {
 866         pa_log_error("Invalid signature for method SetConfiguration()");
 867         goto fail2;
 868     }
 869
 870     dbus_message_iter_get_basic(&args, &path);
 871
 872     if (pa_hashmap_get(y->transports, path)) {
 873         pa_log_error("Endpoint SetConfiguration(): Transport %s is already configured.", path);
 874         goto fail2;
 875     }
 876
 877     pa_assert_se(dbus_message_iter_next(&args));
 878
 879     dbus_message_iter_recurse(&args, &props);
 880     if (dbus_message_iter_get_arg_type(&props) != DBUS_TYPE_DICT_ENTRY)
 881         goto fail;
 882
 883     /* Read transport properties */
 884     while (dbus_message_iter_get_arg_type(&props) == DBUS_TYPE_DICT_ENTRY) {
 885         const char *key;
 886         DBusMessageIter value, entry;
 887         int var;
 888
 889         dbus_message_iter_recurse(&props, &entry);
 890         dbus_message_iter_get_basic(&entry, &key);
 891
 892         dbus_message_iter_next(&entry);
 893         dbus_message_iter_recurse(&entry, &value);
 894
 895         var = dbus_message_iter_get_arg_type(&value);
 896
 897         if (pa_streq(key, "UUID")) {
 898             if (var != DBUS_TYPE_STRING) {
 899                 pa_log_error("Property %s of wrong type %c", key, (char)var);
 900                 goto fail;
 901             }
 902
 903             dbus_message_iter_get_basic(&value, &uuid);
 904
 905             endpoint_path = dbus_message_get_path(m);
 906             if (pa_streq(endpoint_path, A2DP_SOURCE_ENDPOINT)) {
 907                 if (pa_streq(uuid, PA_BLUETOOTH_UUID_A2DP_SOURCE))
 908                     p = PA_BLUETOOTH_PROFILE_A2DP_SINK;
 909             } else if (pa_streq(endpoint_path, A2DP_SINK_ENDPOINT)) {
 910                 if (pa_streq(uuid, PA_BLUETOOTH_UUID_A2DP_SINK))
 911                     p = PA_BLUETOOTH_PROFILE_A2DP_SOURCE;
 912             }
 913
 914             if (p == PA_BLUETOOTH_PROFILE_OFF) {
 915                 pa_log_error("UUID %s of transport %s incompatible with endpoint %s", uuid, path, endpoint_path);
 916                 goto fail;
 917             }
 918         } else if (pa_streq(key, "Device")) {
 919             if (var != DBUS_TYPE_OBJECT_PATH) {
 920                 pa_log_error("Property %s of wrong type %c", key, (char)var);
 921                 goto fail;
 922             }
 923
 924             dbus_message_iter_get_basic(&value, &dev_path);
 925         } else if (pa_streq(key, "Configuration")) {
 926             DBusMessageIter array;
 927             a2dp_sbc_t *c;
 928
 929             if (var != DBUS_TYPE_ARRAY) {
 930                 pa_log_error("Property %s of wrong type %c", key, (char)var);
 931                 goto fail;
 932             }
 933
 934             dbus_message_iter_recurse(&value, &array);
 935             var = dbus_message_iter_get_arg_type(&array);
 936             if (var != DBUS_TYPE_BYTE) {
 937                 pa_log_error("%s is an array of wrong type %c", key, (char)var);
 938                 goto fail;
 939             }
 940
 941             dbus_message_iter_get_fixed_array(&array, &config, &size);
 942             if (size != sizeof(a2dp_sbc_t)) {
 943                 pa_log_error("Configuration array of invalid size");
 944                 goto fail;
 945             }
 946
 947             c = (a2dp_sbc_t *) config;
 948
 949             if (c->frequency != SBC_SAMPLING_FREQ_16000 && c->frequency != SBC_SAMPLING_FREQ_32000 &&
 950                 c->frequency != SBC_SAMPLING_FREQ_44100 && c->frequency != SBC_SAMPLING_FREQ_48000) {
 951                 pa_log_error("Invalid sampling frequency in configuration");
 952                 goto fail;
 953             }
 954
 955             if (c->channel_mode != SBC_CHANNEL_MODE_MONO && c->channel_mode != SBC_CHANNEL_MODE_DUAL_CHANNEL &&
 956                 c->channel_mode != SBC_CHANNEL_MODE_STEREO && c->channel_mode != SBC_CHANNEL_MODE_JOINT_STEREO) {
 957                 pa_log_error("Invalid channel mode in configuration");
 958                 goto fail;
 959             }
 960
 961             if (c->allocation_method != SBC_ALLOCATION_SNR && c->allocation_method != SBC_ALLOCATION_LOUDNESS) {
 962                 pa_log_error("Invalid allocation method in configuration");
 963                 goto fail;
 964             }
 965
 966             if (c->subbands != SBC_SUBBANDS_4 && c->subbands != SBC_SUBBANDS_8) {
 967                 pa_log_error("Invalid SBC subbands in configuration");
 968                 goto fail;
 969             }
 970
 971             if (c->block_length != SBC_BLOCK_LENGTH_4 && c->block_length != SBC_BLOCK_LENGTH_8 &&
 972                 c->block_length != SBC_BLOCK_LENGTH_12 && c->block_length != SBC_BLOCK_LENGTH_16) {
 973                 pa_log_error("Invalid block length in configuration");
 974                 goto fail;
 975             }
 976         }
 977
 978         dbus_message_iter_next(&props);
 979     }
 980
 981     if ((d = pa_hashmap_get(y->devices, dev_path))) {
 982         if (d->device_info_valid == -1) {
 983             pa_log_error("Information about device %s is invalid", dev_path);
 984             goto fail2;
 985         }
 986     } else {
 987         /* InterfacesAdded signal is probably on it's way, device_info_valid is kept as 0. */
 988         pa_log_warn("SetConfiguration() received for unknown device %s", dev_path);
 989         d = device_create(y, dev_path);
 990     }
 991
 992     if (d->transports[p] != NULL) {
 993         pa_log_error("Cannot configure transport %s because profile %s is already used", path, pa_bluetooth_profile_to_string(p));
 994         goto fail2;
 995     }
 996
 997     sender = dbus_message_get_sender(m);
 998
 999     pa_assert_se(r = dbus_message_new_method_return(m));
1000     pa_assert_se(dbus_connection_send(pa_dbus_connection_get(y->connection), r, NULL));
1001     dbus_message_unref(r);
1002
1003     d->transports[p] = t = pa_bluetooth_transport_new(d, sender, path, p, config, size);
1004     t->acquire = bluez5_transport_acquire_cb;
1005     t->release = bluez5_transport_release_cb;
1006     pa_bluetooth_transport_put(t);
1007
1008     pa_log_debug("Transport %s available for profile %s", t->path, pa_bluetooth_profile_to_string(t->profile));
1009
1010     return NULL;
1011
1012 fail:
1013     pa_log_error("Endpoint SetConfiguration(): invalid arguments");
1014
1015 fail2:
1016     pa_assert_se(r = dbus_message_new_error(m, "org.bluez.Error.InvalidArguments", "Unable to set configuration"));
1017     return r;
1018 }
1019
1020 static DBusMessage *endpoint_select_configuration(DBusConnection *conn, DBusMessage *m, void *userdata) {
1021     pa_bluetooth_discovery *y = userdata;
1022     a2dp_sbc_t *cap, config;
1023     uint8_t *pconf = (uint8_t *) &config;
1024     int i, size;
1025     DBusMessage *r;
1026     DBusError err;
1027
1028     static const struct {
1029         uint32_t rate;
1030         uint8_t cap;
1031     } freq_table[] = {
1032         { 16000U, SBC_SAMPLING_FREQ_16000 },
1033         { 32000U, SBC_SAMPLING_FREQ_32000 },
1034         { 44100U, SBC_SAMPLING_FREQ_44100 },
1035         { 48000U, SBC_SAMPLING_FREQ_48000 }
1036     };
1037
1038     dbus_error_init(&err);
1039
1040     if (!dbus_message_get_args(m, &err, DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE, &cap, &size, DBUS_TYPE_INVALID)) {
1041         pa_log_error("Endpoint SelectConfiguration(): %s", err.message);
1042         dbus_error_free(&err);
1043         goto fail;
1044     }
1045
1046     if (size != sizeof(config)) {
1047         pa_log_error("Capabilities array has invalid size");
1048         goto fail;
1049     }
1050
1051     pa_zero(config);
1052
1053     /* Find the lowest freq that is at least as high as the requested sampling rate */
1054     for (i = 0; (unsigned) i < PA_ELEMENTSOF(freq_table); i++)
1055         if (freq_table[i].rate >= y->core->default_sample_spec.rate && (cap->frequency & freq_table[i].cap)) {
1056             config.frequency = freq_table[i].cap;
1057             break;
1058         }
1059
1060     if ((unsigned) i == PA_ELEMENTSOF(freq_table)) {
1061         for (--i; i >= 0; i--) {
1062             if (cap->frequency & freq_table[i].cap) {
1063                 config.frequency = freq_table[i].cap;
1064                 break;
1065             }
1066         }
1067
1068         if (i < 0) {
1069             pa_log_error("Not suitable sample rate");
1070             goto fail;
1071         }
1072     }
1073
1074     pa_assert((unsigned) i < PA_ELEMENTSOF(freq_table));
1075
1076     if (y->core->default_sample_spec.channels <= 1) {
1077         if (cap->channel_mode & SBC_CHANNEL_MODE_MONO)
1078             config.channel_mode = SBC_CHANNEL_MODE_MONO;
1079         else if (cap->channel_mode & SBC_CHANNEL_MODE_JOINT_STEREO)
1080             config.channel_mode = SBC_CHANNEL_MODE_JOINT_STEREO;
1081         else if (cap->channel_mode & SBC_CHANNEL_MODE_STEREO)
1082             config.channel_mode = SBC_CHANNEL_MODE_STEREO;
1083         else if (cap->channel_mode & SBC_CHANNEL_MODE_DUAL_CHANNEL)
1084             config.channel_mode = SBC_CHANNEL_MODE_DUAL_CHANNEL;
1085         else {
1086             pa_log_error("No supported channel modes");
1087             goto fail;
1088         }
1089     }
1090
1091     if (y->core->default_sample_spec.channels >= 2) {
1092         if (cap->channel_mode & SBC_CHANNEL_MODE_JOINT_STEREO)
1093             config.channel_mode = SBC_CHANNEL_MODE_JOINT_STEREO;
1094         else if (cap->channel_mode & SBC_CHANNEL_MODE_STEREO)
1095             config.channel_mode = SBC_CHANNEL_MODE_STEREO;
1096         else if (cap->channel_mode & SBC_CHANNEL_MODE_DUAL_CHANNEL)
1097             config.channel_mode = SBC_CHANNEL_MODE_DUAL_CHANNEL;
1098         else if (cap->channel_mode & SBC_CHANNEL_MODE_MONO)
1099             config.channel_mode = SBC_CHANNEL_MODE_MONO;
1100         else {
1101             pa_log_error("No supported channel modes");
1102             goto fail;
1103         }
1104     }
1105
1106     if (cap->block_length & SBC_BLOCK_LENGTH_16)
1107         config.block_length = SBC_BLOCK_LENGTH_16;
1108     else if (cap->block_length & SBC_BLOCK_LENGTH_12)
1109         config.block_length = SBC_BLOCK_LENGTH_12;
1110     else if (cap->block_length & SBC_BLOCK_LENGTH_8)
1111         config.block_length = SBC_BLOCK_LENGTH_8;
1112     else if (cap->block_length & SBC_BLOCK_LENGTH_4)
1113         config.block_length = SBC_BLOCK_LENGTH_4;
1114     else {
1115         pa_log_error("No supported block lengths");
1116         goto fail;
1117     }
1118
1119     if (cap->subbands & SBC_SUBBANDS_8)
1120         config.subbands = SBC_SUBBANDS_8;
1121     else if (cap->subbands & SBC_SUBBANDS_4)
1122         config.subbands = SBC_SUBBANDS_4;
1123     else {
1124         pa_log_error("No supported subbands");
1125         goto fail;
1126     }
1127
1128     if (cap->allocation_method & SBC_ALLOCATION_LOUDNESS)
1129         config.allocation_method = SBC_ALLOCATION_LOUDNESS;
1130     else if (cap->allocation_method & SBC_ALLOCATION_SNR)
1131         config.allocation_method = SBC_ALLOCATION_SNR;
1132
1133     config.min_bitpool = (uint8_t) PA_MAX(MIN_BITPOOL, cap->min_bitpool);
1134     config.max_bitpool = (uint8_t) PA_MIN(a2dp_default_bitpool(config.frequency, config.channel_mode), cap->max_bitpool);
1135
1136     if (config.min_bitpool > config.max_bitpool)
1137         goto fail;
1138
1139     pa_assert_se(r = dbus_message_new_method_return(m));
1140     pa_assert_se(dbus_message_append_args(r, DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE, &pconf, size, DBUS_TYPE_INVALID));
1141
1142     return r;
1143
1144 fail:
1145     pa_assert_se(r = dbus_message_new_error(m, "org.bluez.Error.InvalidArguments", "Unable to select configuration"));
1146     return r;
1147 }
1148
1149 static DBusMessage *endpoint_clear_configuration(DBusConnection *conn, DBusMessage *m, void *userdata) {
1150     pa_bluetooth_discovery *y = userdata;
1151     pa_bluetooth_transport *t;
1152     DBusMessage *r;
1153     DBusError err;
1154     const char *path;
1155
1156     dbus_error_init(&err);
1157
1158     if (!dbus_message_get_args(m, &err, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID)) {
1159         pa_log_error("Endpoint ClearConfiguration(): %s", err.message);
1160         dbus_error_free(&err);
1161         goto fail;
1162     }
1163
1164     if ((t = pa_hashmap_get(y->transports, path))) {
1165         pa_log_debug("Clearing transport %s profile %s", t->path, pa_bluetooth_profile_to_string(t->profile));
1166         transport_state_changed(t, PA_BLUETOOTH_TRANSPORT_STATE_DISCONNECTED);
1167         pa_bluetooth_transport_free(t);
1168     }
1169
1170     pa_assert_se(r = dbus_message_new_method_return(m));
1171
1172     return r;
1173
1174 fail:
1175     pa_assert_se(r = dbus_message_new_error(m, "org.bluez.Error.InvalidArguments", "Unable to clear configuration"));
1176     return r;
1177 }
1178
1179 static DBusMessage *endpoint_release(DBusConnection *conn, DBusMessage *m, void *userdata) {
1180     DBusMessage *r;
1181
1182     pa_assert_se(r = dbus_message_new_error(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE ".Error.NotImplemented",
1183                                             "Method not implemented"));
1184
1185     return r;
1186 }
1187
1188 static DBusHandlerResult endpoint_handler(DBusConnection *c, DBusMessage *m, void *userdata) {
1189     struct pa_bluetooth_discovery *y = userdata;
1190     DBusMessage *r = NULL;
1191     const char *path, *interface, *member;
1192
1193     pa_assert(y);
1194
1195     path = dbus_message_get_path(m);
1196     interface = dbus_message_get_interface(m);
1197     member = dbus_message_get_member(m);
1198
1199     pa_log_debug("dbus: path=%s, interface=%s, member=%s", path, interface, member);
1200
1201     if (!pa_streq(path, A2DP_SOURCE_ENDPOINT) && !pa_streq(path, A2DP_SINK_ENDPOINT))
1202         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1203
1204     if (dbus_message_is_method_call(m, "org.freedesktop.DBus.Introspectable", "Introspect")) {
1205         const char *xml = ENDPOINT_INTROSPECT_XML;
1206
1207         pa_assert_se(r = dbus_message_new_method_return(m));
1208         pa_assert_se(dbus_message_append_args(r, DBUS_TYPE_STRING, &xml, DBUS_TYPE_INVALID));
1209
1210     } else if (dbus_message_is_method_call(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE, "SetConfiguration"))
1211         r = endpoint_set_configuration(c, m, userdata);
1212     else if (dbus_message_is_method_call(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE, "SelectConfiguration"))
1213         r = endpoint_select_configuration(c, m, userdata);
1214     else if (dbus_message_is_method_call(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE, "ClearConfiguration"))
1215         r = endpoint_clear_configuration(c, m, userdata);
1216     else if (dbus_message_is_method_call(m, BLUEZ_MEDIA_ENDPOINT_INTERFACE, "Release"))
1217         r = endpoint_release(c, m, userdata);
1218     else
1219         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1220
1221     if (r) {
1222         pa_assert_se(dbus_connection_send(pa_dbus_connection_get(y->connection), r, NULL));
1223         dbus_message_unref(r);
1224     }
1225
1226     return DBUS_HANDLER_RESULT_HANDLED;
1227 }
1228
1229 static void endpoint_init(pa_bluetooth_discovery *y, pa_bluetooth_profile_t profile) {
1230     static const DBusObjectPathVTable vtable_endpoint = {
1231         .message_function = endpoint_handler,
1232     };
1233
1234     pa_assert(y);
1235
1236     switch(profile) {
1237         case PA_BLUETOOTH_PROFILE_A2DP_SINK:
1238             pa_assert_se(dbus_connection_register_object_path(pa_dbus_connection_get(y->connection), A2DP_SOURCE_ENDPOINT,
1239                                                               &vtable_endpoint, y));
1240             break;
1241         case PA_BLUETOOTH_PROFILE_A2DP_SOURCE:
1242             pa_assert_se(dbus_connection_register_object_path(pa_dbus_connection_get(y->connection), A2DP_SINK_ENDPOINT,
1243                                                               &vtable_endpoint, y));
1244             break;
1245         default:
1246             pa_assert_not_reached();
1247             break;
1248     }
1249 }
1250
1251 static void endpoint_done(pa_bluetooth_discovery *y, pa_bluetooth_profile_t profile) {
1252     pa_assert(y);
1253
1254     switch(profile) {
1255         case PA_BLUETOOTH_PROFILE_A2DP_SINK:
1256             dbus_connection_unregister_object_path(pa_dbus_connection_get(y->connection), A2DP_SOURCE_ENDPOINT);
1257             break;
1258         case PA_BLUETOOTH_PROFILE_A2DP_SOURCE:
1259             dbus_connection_unregister_object_path(pa_dbus_connection_get(y->connection), A2DP_SINK_ENDPOINT);
1260             break;
1261         default:
1262             pa_assert_not_reached();
1263             break;
1264     }
1265 }
1266
1267 pa_bluetooth_discovery* pa_bluetooth_discovery_get(pa_core *c) {
1268     pa_bluetooth_discovery *y;
1269     DBusError err;
1270     DBusConnection *conn;
1271     unsigned i;
1272
1273     if ((y = pa_shared_get(c, "bluetooth-discovery")))
1274         return pa_bluetooth_discovery_ref(y);
1275
1276     y = pa_xnew0(pa_bluetooth_discovery, 1);
1277     PA_REFCNT_INIT(y);
1278     y->core = c;
1279     y->adapters = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
1280     y->devices = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
1281     y->transports = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
1282     PA_LLIST_HEAD_INIT(pa_dbus_pending, y->pending);
1283
1284     for (i = 0; i < PA_BLUETOOTH_HOOK_MAX; i++)
1285         pa_hook_init(&y->hooks[i], y);
1286
1287     pa_shared_set(c, "bluetooth-discovery", y);
1288
1289     dbus_error_init(&err);
1290
1291     if (!(y->connection = pa_dbus_bus_get(y->core, DBUS_BUS_SYSTEM, &err))) {
1292         pa_log_error("Failed to get D-Bus connection: %s", err.message);
1293         goto fail;
1294     }
1295
1296     conn = pa_dbus_connection_get(y->connection);
1297
1298     /* dynamic detection of bluetooth audio devices */
1299     if (!dbus_connection_add_filter(conn, filter_cb, y, NULL)) {
1300         pa_log_error("Failed to add filter function");
1301         goto fail;
1302     }
1303     y->filter_added = true;
1304
1305     if (pa_dbus_add_matches(conn, &err,
1306             "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged'"
1307             ",arg0='" BLUEZ_SERVICE "'",
1308             "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.ObjectManager',member='InterfacesAdded'",
1309             "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.ObjectManager',"
1310             "member='InterfacesRemoved'",
1311             "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.Properties',member='PropertiesChanged'"
1312             ",arg0='" BLUEZ_ADAPTER_INTERFACE "'",
1313             NULL) < 0) {
1314         pa_log_error("Failed to add D-Bus matches: %s", err.message);
1315         goto fail;
1316     }
1317     y->matches_added = true;
1318
1319     endpoint_init(y, PA_BLUETOOTH_PROFILE_A2DP_SINK);
1320     endpoint_init(y, PA_BLUETOOTH_PROFILE_A2DP_SOURCE);
1321
1322     get_managed_objects(y);
1323
1324     return y;
1325
1326 fail:
1327     pa_bluetooth_discovery_unref(y);
1328     dbus_error_free(&err);
1329
1330     return NULL;
1331 }
1332
1333 pa_bluetooth_discovery* pa_bluetooth_discovery_ref(pa_bluetooth_discovery *y) {
1334     pa_assert(y);
1335     pa_assert(PA_REFCNT_VALUE(y) > 0);
1336
1337     PA_REFCNT_INC(y);
1338
1339     return y;
1340 }
1341
1342 void pa_bluetooth_discovery_unref(pa_bluetooth_discovery *y) {
1343     pa_assert(y);
1344     pa_assert(PA_REFCNT_VALUE(y) > 0);
1345
1346     if (PA_REFCNT_DEC(y) > 0)
1347         return;
1348
1349     pa_dbus_free_pending_list(&y->pending);
1350
1351     if (y->devices) {
1352         device_remove_all(y);
1353         pa_hashmap_free(y->devices);
1354     }
1355
1356     if (y->adapters) {
1357         adapter_remove_all(y);
1358         pa_hashmap_free(y->adapters);
1359     }
1360
1361     if (y->transports) {
1362         pa_assert(pa_hashmap_isempty(y->transports));
1363         pa_hashmap_free(y->transports);
1364     }
1365
1366     if (y->connection) {
1367
1368         if (y->matches_added)
1369             pa_dbus_remove_matches(pa_dbus_connection_get(y->connection),
1370                 "type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='NameOwnerChanged',"
1371                 "arg0='" BLUEZ_SERVICE "'",
1372                 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.ObjectManager',"
1373                 "member='InterfacesAdded'",
1374                 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.ObjectManager',"
1375                 "member='InterfacesRemoved'",
1376                 "type='signal',sender='" BLUEZ_SERVICE "',interface='org.freedesktop.DBus.Properties',"
1377                 "member='PropertiesChanged',arg0='" BLUEZ_ADAPTER_INTERFACE "'",
1378                 NULL);
1379
1380         if (y->filter_added)
1381             dbus_connection_remove_filter(pa_dbus_connection_get(y->connection), filter_cb, y);
1382
1383         endpoint_done(y, PA_BLUETOOTH_PROFILE_A2DP_SINK);
1384         endpoint_done(y, PA_BLUETOOTH_PROFILE_A2DP_SOURCE);
1385
1386         pa_dbus_connection_unref(y->connection);
1387     }
1388
1389     pa_shared_remove(y->core, "bluetooth-discovery");
1390     pa_xfree(y);
1391 }