bt-service/bt-service-common.c

   1 /*
   2  * bluetooth-frwk
   3  *
   4  * Copyright (c) 2012-2013 Samsung Electronics Co., Ltd.
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  *              http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  *
  18  */
  19
  20 #include <stdio.h>
  21 #include <string.h>
  22 #include <dbus/dbus-glib-lowlevel.h>
  23 #include <dbus/dbus-glib.h>
  24 #include <dbus/dbus.h>
  25 #include <glib.h>
  26 #include <dlog.h>
  27 #include <fcntl.h>
  28 #include <errno.h>
  29 #include <termios.h>
  30
  31 #include "bluetooth-api.h"
  32 #include "bt-service-common.h"
  33 #include "bt-service-agent.h"
  34
  35 static DBusGConnection *system_conn;
  36 static DBusGConnection *session_conn;
  37 static DBusGProxy *manager_proxy;
  38 static DBusGProxy *adapter_proxy;
  39 static DBusGProxy *adapter_properties_proxy;
  40
  41 static DBusGProxy *__bt_init_manager_proxy(void)
  42 {
  43         DBusGProxy *proxy;
  44
  45         g_type_init();
  46
  47         if (system_conn == NULL) {
  48                 system_conn = dbus_g_bus_get(DBUS_BUS_SYSTEM, NULL);
  49                 retv_if(system_conn == NULL, NULL);
  50         }
  51
  52         proxy = dbus_g_proxy_new_for_name(system_conn, BT_BLUEZ_NAME,
  53                         BT_MANAGER_PATH, BT_MANAGER_INTERFACE);
  54
  55         retv_if(proxy == NULL, NULL);
  56
  57         manager_proxy = proxy;
  58
  59         return proxy;
  60 }
  61
  62 static DBusGProxy *__bt_init_adapter_proxy(void)
  63 {
  64         DBusGProxy *manager_proxy;
  65         DBusGProxy *proxy;
  66
  67         if (system_conn == NULL) {
  68                 system_conn = dbus_g_bus_get(DBUS_BUS_SYSTEM, NULL);
  69                 retv_if(system_conn == NULL, NULL);
  70         }
  71
  72         manager_proxy = _bt_get_manager_proxy();
  73         retv_if(manager_proxy == NULL, NULL);
  74
  75         proxy = dbus_g_proxy_new_for_name(system_conn, BT_BLUEZ_NAME,
  76                                 BT_BLUEZ_HCI_PATH, BT_ADAPTER_INTERFACE);
  77
  78         retv_if(proxy == NULL, NULL);
  79
  80         adapter_proxy = proxy;
  81
  82         return proxy;
  83 }
  84
  85 static DBusGProxy *__bt_init_adapter_properties_proxy(void)
  86 {
  87         DBusGProxy *manager_proxy;
  88         DBusGProxy *proxy;
  89
  90         g_type_init();
  91
  92         if (system_conn == NULL) {
  93                 system_conn = dbus_g_bus_get(DBUS_BUS_SYSTEM, NULL);
  94                 retv_if(system_conn == NULL, NULL);
  95         }
  96
  97         manager_proxy = _bt_get_manager_proxy();
  98         retv_if(manager_proxy == NULL, NULL);
  99
 100         proxy = dbus_g_proxy_new_for_name(system_conn, BT_BLUEZ_NAME,
 101                         BT_BLUEZ_HCI_PATH, BT_PROPERTIES_INTERFACE);
 102
 103         retv_if(proxy == NULL, NULL);
 104
 105         adapter_properties_proxy = proxy;
 106
 107         return proxy;
 108 }
 109
 110 DBusGConnection *__bt_init_system_gconn(void)
 111 {
 112         g_type_init();
 113
 114         if (system_conn == NULL)
 115                 system_conn = dbus_g_bus_get(DBUS_BUS_SYSTEM, NULL);
 116
 117         return system_conn;
 118 }
 119
 120 DBusGConnection *__bt_init_session_conn(void)
 121 {
 122         if (session_conn == NULL)
 123                 session_conn = dbus_g_bus_get(DBUS_BUS_SESSION, NULL);
 124
 125         return session_conn;
 126 }
 127
 128 DBusGConnection *_bt_get_session_gconn(void)
 129 {
 130         return (session_conn) ? session_conn : __bt_init_session_conn();
 131 }
 132
 133 DBusGConnection *_bt_get_system_gconn(void)
 134 {
 135         return (system_conn) ? system_conn : __bt_init_system_gconn();
 136 }
 137
 138 DBusConnection *_bt_get_system_conn(void)
 139 {
 140         DBusGConnection *g_conn;
 141
 142         if (system_conn == NULL) {
 143                 g_conn = __bt_init_system_gconn();
 144         } else {
 145                 g_conn = system_conn;
 146         }
 147
 148         retv_if(g_conn == NULL, NULL);
 149
 150         return dbus_g_connection_get_connection(g_conn);
 151 }
 152
 153 DBusGProxy *_bt_get_manager_proxy(void)
 154 {
 155         return (manager_proxy) ? manager_proxy : __bt_init_manager_proxy();
 156 }
 157
 158 DBusGProxy *_bt_get_adapter_proxy(void)
 159 {
 160         return (adapter_proxy) ? adapter_proxy : __bt_init_adapter_proxy();
 161 }
 162
 163 DBusGProxy *_bt_get_adapter_properties_proxy(void)
 164 {
 165         return (adapter_properties_proxy) ? adapter_properties_proxy :
 166                                         __bt_init_adapter_properties_proxy();
 167 }
 168
 169 static char *__bt_extract_adapter_path(DBusMessageIter *msg_iter)
 170 {
 171         char *object_path = NULL;
 172         DBusMessageIter value_iter;
 173
 174         /* Parse the signature:  oa{sa{sv}}} */
 175         retv_if(dbus_message_iter_get_arg_type(msg_iter) !=
 176                                 DBUS_TYPE_OBJECT_PATH, NULL);
 177
 178         dbus_message_iter_get_basic(msg_iter, &object_path);
 179         retv_if(object_path == NULL, NULL);
 180
 181         /* object array (oa) */
 182         retv_if(dbus_message_iter_next(msg_iter) == FALSE, NULL);
 183         retv_if(dbus_message_iter_get_arg_type(msg_iter) !=
 184                                 DBUS_TYPE_ARRAY, NULL);
 185
 186         dbus_message_iter_recurse(msg_iter, &value_iter);
 187
 188         /* string array (sa) */
 189         while (dbus_message_iter_get_arg_type(&value_iter) ==
 190                                         DBUS_TYPE_DICT_ENTRY) {
 191                 char *interface_name = NULL;
 192                 DBusMessageIter interface_iter;
 193
 194                 dbus_message_iter_recurse(&value_iter, &interface_iter);
 195
 196                 retv_if(dbus_message_iter_get_arg_type(&interface_iter) !=
 197                         DBUS_TYPE_STRING, NULL);
 198
 199                 dbus_message_iter_get_basic(&interface_iter, &interface_name);
 200
 201                 if (g_strcmp0(interface_name, "org.bluez.Adapter1") == 0) {
 202                         /* Tizen don't allow the multi-adapter */
 203                         BT_DBG("Found an adapter: %s", object_path);
 204                         return g_strdup(object_path);
 205                 }
 206
 207                 dbus_message_iter_next(&value_iter);
 208         }
 209
 210         BT_DBG("There is no adapter");
 211
 212         return NULL;
 213 }
 214
 215 char *_bt_get_adapter_path(void)
 216 {
 217         DBusMessage *msg;
 218         DBusMessage *reply;
 219         DBusMessageIter reply_iter;
 220         DBusMessageIter value_iter;
 221         DBusError err;
 222         DBusConnection *conn;
 223         char *adapter_path = NULL;
 224
 225         conn = _bt_get_system_conn();
 226         retv_if(conn == NULL, NULL);
 227
 228         msg = dbus_message_new_method_call(BT_BLUEZ_NAME, BT_MANAGER_PATH,
 229                                                 BT_MANAGER_INTERFACE,
 230                                                 "GetManagedObjects");
 231
 232         retv_if(msg == NULL, NULL);
 233
 234         /* Synchronous call */
 235         dbus_error_init(&err);
 236         reply = dbus_connection_send_with_reply_and_block(
 237                                         conn, msg,
 238                                         -1, &err);
 239         dbus_message_unref(msg);
 240
 241         if (!reply) {
 242                 BT_ERR("Can't get managed objects");
 243
 244                 if (dbus_error_is_set(&err)) {
 245                         BT_ERR("%s", err.message);
 246                         dbus_error_free(&err);
 247                 }
 248                 return NULL;
 249         }
 250
 251         if (dbus_message_iter_init(reply, &reply_iter) == FALSE) {
 252             BT_ERR("Fail to iterate the reply");
 253             return NULL;
 254         }
 255
 256         dbus_message_iter_recurse(&reply_iter, &value_iter);
 257
 258         /* signature of GetManagedObjects:  a{oa{sa{sv}}} */
 259         while (dbus_message_iter_get_arg_type(&value_iter) ==
 260                                                 DBUS_TYPE_DICT_ENTRY) {
 261                 DBusMessageIter msg_iter;
 262
 263                 dbus_message_iter_recurse(&value_iter, &msg_iter);
 264
 265                 adapter_path = __bt_extract_adapter_path(&msg_iter);
 266                 if (adapter_path != NULL) {
 267                         BT_DBG("Found the adapter path");
 268                         break;
 269                 }
 270
 271                 dbus_message_iter_next(&value_iter);
 272         }
 273
 274         return adapter_path;
 275 }
 276
 277 void _bt_deinit_bluez_proxy(void)
 278 {
 279         if (manager_proxy) {
 280                 g_object_unref(manager_proxy);
 281                 manager_proxy = NULL;
 282         }
 283
 284         if (adapter_proxy) {
 285                 g_object_unref(adapter_proxy);
 286                 adapter_proxy = NULL;
 287         }
 288
 289         if (adapter_properties_proxy) {
 290                 g_object_unref(adapter_properties_proxy);
 291                 adapter_properties_proxy = NULL;
 292         }
 293 }
 294
 295 void _bt_deinit_proxys(void)
 296 {
 297
 298         _bt_deinit_bluez_proxy();
 299
 300         if (system_conn) {
 301                 dbus_g_connection_unref(system_conn);
 302                 system_conn = NULL;
 303         }
 304
 305         if (session_conn) {
 306                 dbus_g_connection_unref(session_conn);
 307                 session_conn = NULL;
 308         }
 309
 310 }
 311
 312 void _bt_convert_device_path_to_address(const char *device_path,
 313                                                 char *device_address)
 314 {
 315         char address[BT_ADDRESS_STRING_SIZE] = { 0 };
 316         char *dev_addr;
 317
 318         ret_if(device_path == NULL);
 319         ret_if(device_address == NULL);
 320
 321         dev_addr = strstr(device_path, "dev_");
 322         if (dev_addr != NULL) {
 323                 char *pos = NULL;
 324                 dev_addr += 4;
 325                 g_strlcpy(address, dev_addr, sizeof(address));
 326
 327                 while ((pos = strchr(address, '_')) != NULL) {
 328                         *pos = ':';
 329                 }
 330
 331                 g_strlcpy(device_address, address, BT_ADDRESS_STRING_SIZE);
 332         }
 333 }
 334
 335
 336 void _bt_convert_addr_string_to_type(unsigned char *addr,
 337                                         const char *address)
 338 {
 339         int i;
 340         char *ptr = NULL;
 341
 342         ret_if(address == NULL);
 343         ret_if(addr == NULL);
 344
 345         for (i = 0; i < BT_ADDRESS_LENGTH_MAX; i++) {
 346                 addr[i] = strtol(address, &ptr, 16);
 347                 if (ptr != NULL) {
 348                         if (ptr[0] != ':')
 349                                 return;
 350
 351                         address = ptr + 1;
 352                 }
 353         }
 354 }
 355
 356 void _bt_convert_addr_type_to_string(char *address,
 357                                 unsigned char *addr)
 358 {
 359         ret_if(address == NULL);
 360         ret_if(addr == NULL);
 361
 362         snprintf(address, BT_ADDRESS_STRING_SIZE,
 363                         "%2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X",
 364                         addr[0], addr[1], addr[2],
 365                         addr[3], addr[4], addr[5]);
 366 }
 367
 368 void _bt_print_device_address_t(const bluetooth_device_address_t *addr)
 369 {
 370         BT_DBG("%2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n", addr->addr[0], addr->addr[1], addr->addr[2],
 371                                 addr->addr[3], addr->addr[4], addr->addr[5]);
 372 }
 373
 374 void _bt_divide_device_class(bluetooth_device_class_t *device_class,
 375                                 unsigned int cod)
 376 {
 377         ret_if(device_class == NULL);
 378
 379         device_class->major_class = (unsigned short)(cod & 0x00001F00) >> 8;
 380         device_class->minor_class = (unsigned short)((cod & 0x000000FC));
 381         device_class->service_class = (unsigned long)((cod & 0x00FF0000));
 382
 383         if (cod & 0x002000) {
 384                 device_class->service_class |=
 385                 BLUETOOTH_DEVICE_SERVICE_CLASS_LIMITED_DISCOVERABLE_MODE;
 386         }
 387 }
 388
 389 void _bt_free_device_info(bt_remote_dev_info_t *dev_info)
 390 {
 391         int i;
 392
 393         ret_if(dev_info == NULL);
 394
 395         g_free(dev_info->address);
 396         g_free(dev_info->name);
 397
 398         if (dev_info->uuids) {
 399                 for (i = 0; dev_info->uuids[i] != NULL; i++)
 400                         g_free(dev_info->uuids[i]);
 401
 402                 g_free(dev_info->uuids);
 403         }
 404
 405         g_free(dev_info);
 406 }
 407
 408 int _bt_register_osp_server_in_agent(int type, char *uuid)
 409 {
 410         if (!_bt_agent_register_osp_server( type, uuid))
 411                 return BLUETOOTH_ERROR_INTERNAL;
 412
 413         return BLUETOOTH_ERROR_NONE;
 414 }
 415
 416 int _bt_unregister_osp_server_in_agent(int type, char *uuid)
 417 {
 418         if (!_bt_agent_unregister_osp_server( type, uuid))
 419                 return BLUETOOTH_ERROR_INTERNAL;
 420
 421         return BLUETOOTH_ERROR_NONE;
 422 }
 423
 424 int _bt_set_socket_non_blocking(int socket_fd)
 425 {
 426         /* Set Nonblocking */
 427         long arg;
 428
 429         arg = fcntl(socket_fd, F_GETFL);
 430
 431         if (arg < 0)
 432                 return -errno;
 433
 434         if (arg & O_NONBLOCK) {
 435                 BT_ERR("Already Non-blocking \n");
 436         }
 437
 438         arg |= O_NONBLOCK;
 439
 440         if (fcntl(socket_fd, F_SETFL, arg) < 0)
 441                 return -errno;
 442
 443         return BLUETOOTH_ERROR_NONE;
 444 }
 445
 446 int _bt_set_non_blocking_tty(int sk)
 447 {
 448         struct termios ti = {0,};
 449         int err;
 450
 451         err = _bt_set_socket_non_blocking(sk);
 452
 453         if (err < 0) {
 454                 BT_ERR("Error in set non blocking!\n");
 455                 return err;
 456         }
 457
 458         tcflush(sk, TCIOFLUSH);
 459
 460         /* Switch tty to RAW mode */
 461         cfmakeraw(&ti);
 462         tcsetattr(sk, TCSANOW, &ti);
 463
 464         return BLUETOOTH_ERROR_NONE;
 465 }
 466
 467 gboolean _bt_is_headset_class(int dev_class)
 468 {
 469         gboolean is_headset = FALSE;
 470
 471         switch ((dev_class & 0x1f00) >> 8) {
 472         case 0x04:
 473                 switch ((dev_class & 0xfc) >> 2) {
 474                 case 0x01:
 475                 case 0x02:
 476                         /* Headset */
 477                         is_headset = TRUE;
 478                         break;
 479                 case 0x06:
 480                         /* Headphone */
 481                         is_headset = TRUE;
 482                         break;
 483                 case 0x0b:      /* VCR */
 484                 case 0x0c:      /* Video Camera */
 485                 case 0x0d:      /* Camcorder */
 486                         break;
 487                 default:
 488                         /* Other audio device */
 489                         is_headset = TRUE;
 490                         break;
 491                 }
 492                 break;
 493         }
 494
 495         return is_headset;
 496 }
 497
 498 static char *__bt_extract_device_path(DBusMessageIter *msg_iter, char *address)
 499 {
 500         char *object_path = NULL;
 501         char device_address[BT_ADDRESS_STRING_SIZE] = { 0 };
 502
 503         /* Parse the signature:  oa{sa{sv}}} */
 504         retv_if(dbus_message_iter_get_arg_type(msg_iter) !=
 505                                 DBUS_TYPE_OBJECT_PATH, NULL);
 506
 507         dbus_message_iter_get_basic(msg_iter, &object_path);
 508         retv_if(object_path == NULL, NULL);
 509
 510         _bt_convert_device_path_to_address(object_path, device_address);
 511
 512         if (g_strcmp0(address, device_address) == 0) {
 513                 return g_strdup(object_path);
 514         }
 515
 516         return NULL;
 517 }
 518
 519 char *_bt_get_device_object_path(char *address)
 520 {
 521         DBusMessage *msg;
 522         DBusMessage *reply;
 523         DBusMessageIter reply_iter;
 524         DBusMessageIter value_iter;
 525         DBusError err;
 526         DBusConnection *conn;
 527         char *object_path = NULL;
 528
 529         conn = _bt_get_system_conn();
 530         retv_if(conn == NULL, NULL);
 531
 532         msg = dbus_message_new_method_call(BT_BLUEZ_NAME, BT_MANAGER_PATH,
 533                                                 BT_MANAGER_INTERFACE,
 534                                                 "GetManagedObjects");
 535
 536         retv_if(msg == NULL, NULL);
 537
 538         /* Synchronous call */
 539         dbus_error_init(&err);
 540         reply = dbus_connection_send_with_reply_and_block(
 541                                         conn, msg,
 542                                         -1, &err);
 543         dbus_message_unref(msg);
 544
 545         if (!reply) {
 546                 BT_ERR("Can't get managed objects");
 547
 548                 if (dbus_error_is_set(&err)) {
 549                         BT_ERR("%s", err.message);
 550                         dbus_error_free(&err);
 551                 }
 552                 return NULL;
 553         }
 554
 555         if (dbus_message_iter_init(reply, &reply_iter) == FALSE) {
 556             BT_ERR("Fail to iterate the reply");
 557             return NULL;
 558         }
 559
 560         dbus_message_iter_recurse(&reply_iter, &value_iter);
 561
 562         /* signature of GetManagedObjects:  a{oa{sa{sv}}} */
 563         while (dbus_message_iter_get_arg_type(&value_iter) ==
 564                                                 DBUS_TYPE_DICT_ENTRY) {
 565                 DBusMessageIter msg_iter;
 566
 567                 dbus_message_iter_recurse(&value_iter, &msg_iter);
 568
 569                 object_path = __bt_extract_device_path(&msg_iter, address);
 570                 if (object_path != NULL) {
 571                         BT_DBG("Found the device path");
 572                         break;
 573                 }
 574
 575                 dbus_message_iter_next(&value_iter);
 576         }
 577
 578         return object_path;
 579 }
 580