bt-api/bt-rfcomm-client.c

   1 /*
   2  * Bluetooth-frwk
   3  *
   4  * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   6  * Contact:  Hocheol Seo <hocheol.seo@samsung.com>
   7  *               Girishashok Joshi <girish.joshi@samsung.com>
   8  *               Chanyeol Park <chanyeol.park@samsung.com>
   9  *
  10  * Licensed under the Apache License, Version 2.0 (the "License");
  11  * you may not use this file except in compliance with the License.
  12  * You may obtain a copy of the License at
  13  *
  14  *              http://www.apache.org/licenses/LICENSE-2.0
  15  *
  16  * Unless required by applicable law or agreed to in writing, software
  17  * distributed under the License is distributed on an "AS IS" BASIS,
  18  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  19  * See the License for the specific language governing permissions and
  20  * limitations under the License.
  21  *
  22  */
  23
  24 #include <string.h>
  25 #ifdef RFCOMM_DIRECT
  26 #include <errno.h>
  27 #include <gio/gunixfdlist.h>
  28 #endif
  29
  30 #include "bluetooth-api.h"
  31 #include "bt-internal-types.h"
  32
  33 #include "bt-common.h"
  34 #include "bt-request-sender.h"
  35 #include "bt-event-handler.h"
  36
  37 #ifdef RFCOMM_DIRECT
  38
  39 #define BT_TIMEOUT_MESSAGE "Did not receive a reply. Possible causes include: " \
  40                         "the remote application did not send a reply, " \
  41                         "the message bus security policy blocked the reply, " \
  42                         "the reply timeout expired, or the network connection " \
  43                         "was broken."
  44
  45 static GSList *rfcomm_clients;
  46
  47 /* Variable for privilege, only for write API,
  48   before we should reduce time to bt-service dbus calling
  49   -1 : Don't have a permission to access API
  50   0 : Initial value, not yet check
  51   1 : Have a permission to access API
  52 */
  53 static int privilege_token;
  54
  55 typedef struct {
  56         char bt_addr[BT_ADDRESS_STRING_SIZE];
  57         int fd;
  58         int watch_id;
  59         gboolean disconnected;
  60 } rfcomm_conn_info_t;
  61
  62 typedef struct {
  63         char uuid[BLUETOOTH_UUID_STRING_MAX];
  64         char *device_path;
  65         char *obj_path;
  66         int object_id;
  67         int id;
  68         GSList *rfcomm_conns;
  69         unsigned int idle_id;
  70 } rfcomm_cb_data_t;
  71
  72 static void __client_connected_cb(rfcomm_cb_data_t *cb_data,
  73         char *dev_address, int result);
  74
  75 static void __bt_free_cb_data(rfcomm_cb_data_t *cb_data)
  76 {
  77         BT_DBG("+");
  78
  79         if (cb_data->id >= 0)
  80                 __rfcomm_delete_id(cb_data->id);
  81
  82         if (cb_data->object_id > 0)
  83                 _bt_unregister_gdbus(cb_data->object_id);
  84
  85         if (cb_data->obj_path) {
  86                 BT_INFO("Unregister profile");
  87                 _bt_unregister_profile(cb_data->obj_path);
  88         }
  89
  90         if (cb_data->idle_id != 0) {
  91                 BT_INFO("Removing idle source");
  92                 g_source_remove(cb_data->idle_id);
  93         }
  94
  95         g_free(cb_data->obj_path);
  96
  97         g_free(cb_data->device_path);
  98         g_free(cb_data);
  99         BT_DBG("-");
 100 }
 101
 102 static void rfcomm_cb_data_remove(rfcomm_cb_data_t *info)
 103 {
 104         if (info) {
 105                 BT_INFO("No more device connected remove info");
 106                 rfcomm_clients = g_slist_remove(rfcomm_clients, info);
 107                 __bt_free_cb_data(info);
 108         }
 109 }
 110
 111 gint compare(gpointer *a, gpointer *b)
 112 {
 113         rfcomm_conn_info_t *node = (rfcomm_conn_info_t *)a;
 114         char *address = (char *)b;
 115         return g_strcmp0(node->bt_addr, address);
 116 }
 117
 118 gint compare_fd(gpointer *a, gpointer *b)
 119 {
 120         rfcomm_conn_info_t *node = (rfcomm_conn_info_t *)a;
 121         int fd = (int )*b;
 122         if (node->fd == fd)
 123                 return 0;
 124         return 1;
 125 }
 126 static void __bt_free_conn(rfcomm_conn_info_t *conn)
 127 {
 128         BT_DBG("+");
 129
 130         if (conn == NULL)
 131                 return;
 132
 133         if (conn->fd > 0)
 134                 close(conn->fd);
 135         if (conn->watch_id > 0) {
 136                 g_source_remove(conn->watch_id);
 137                 conn->watch_id = 0;
 138         }
 139         g_free(conn);
 140
 141         BT_DBG("-");
 142 }
 143
 144 static void __rfcomm_remove_conn_info_t(rfcomm_cb_data_t *info, char *address)
 145 {
 146         GSList *l = NULL;
 147         rfcomm_conn_info_t *conn_info = NULL;
 148         l = g_slist_find_custom(info->rfcomm_conns, address, (GCompareFunc)compare);
 149         if (l)
 150                 conn_info = l->data;
 151         if (conn_info) {
 152                 info->rfcomm_conns = g_slist_remove(info->rfcomm_conns, conn_info);
 153                 __bt_free_conn(conn_info);
 154         }
 155 }
 156
 157 static rfcomm_conn_info_t *__get_conn_info_from_fd(rfcomm_cb_data_t *info,
 158         int fd)
 159 {
 160         GSList *l;
 161         rfcomm_conn_info_t *device_node = NULL;
 162         for(l = info->rfcomm_conns; l != NULL; l = l->next) {
 163                 device_node = l->data;
 164                 if ( device_node && device_node->fd == fd)
 165                         return device_node;
 166         }
 167         return NULL;
 168 }
 169
 170 static rfcomm_conn_info_t *__get_conn_info_from_address(rfcomm_cb_data_t *info,
 171                 char *dev_address)
 172 {
 173         GSList *l = NULL;
 174         rfcomm_conn_info_t *conn_info = NULL;
 175         l = g_slist_find_custom(info->rfcomm_conns, dev_address,
 176                 (GCompareFunc)compare);
 177         if (l)
 178                 conn_info = l->data;
 179         return conn_info;
 180 }
 181
 182 static void __rfcomm_client_connected_cb(rfcomm_cb_data_t *info,
 183         char *dev_address, int result)
 184 {
 185         __client_connected_cb(info, dev_address, result);
 186         __rfcomm_remove_conn_info_t(info, dev_address);
 187
 188         if (info->rfcomm_conns == NULL)
 189                 rfcomm_cb_data_remove(info);
 190 }
 191
 192 static rfcomm_cb_data_t *__find_rfcomm_info_with_fd(int fd)
 193 {
 194         GSList *l;
 195         GSList *device_fd;
 196         for (l = rfcomm_clients; l != NULL; l = l->next) {
 197                 rfcomm_cb_data_t *info = l->data;
 198                 device_fd = g_slist_find_custom(info->rfcomm_conns, &fd,
 199                         (GCompareFunc)compare_fd);
 200                 if (device_fd)
 201                         return info;
 202         }
 203
 204         return NULL;
 205 }
 206
 207 static rfcomm_cb_data_t *__find_rfcomm_info_from_path(const char *path)
 208 {
 209         GSList *l;
 210
 211         for (l = rfcomm_clients; l != NULL; l = l->next) {
 212                 rfcomm_cb_data_t *info = l->data;
 213
 214                 if (info != NULL)
 215                         if (g_strcmp0(info->obj_path, path) == 0)
 216                                 return info;
 217         }
 218
 219         return NULL;
 220 }
 221
 222 static rfcomm_cb_data_t *__find_rfcomm_info_from_uuid(const char *uuid)
 223 {
 224         GSList *l;
 225
 226         for (l = rfcomm_clients; l != NULL; l = l->next) {
 227                 rfcomm_cb_data_t *info = l->data;
 228
 229                 if (g_strcmp0(info->uuid, uuid) == 0)
 230                         return info;
 231         }
 232
 233         return NULL;
 234 }
 235
 236 static void _bt_rfcomm_disconnect_conn_info(rfcomm_conn_info_t *conn_info,
 237         rfcomm_cb_data_t *info)
 238 {
 239         if (conn_info == NULL)
 240                 return;
 241
 242         bluetooth_rfcomm_disconnection_t disconn_info;
 243         bt_event_info_t *event_info = NULL;
 244         if (conn_info->disconnected == FALSE)
 245                 return;
 246         event_info = _bt_event_get_cb_data(BT_RFCOMM_CLIENT_EVENT);
 247         if (event_info == NULL) {
 248                 if (info->rfcomm_conns == NULL)
 249                         rfcomm_cb_data_remove(info);
 250                 return;
 251         }
 252         memset(&disconn_info, 0x00, sizeof(bluetooth_rfcomm_disconnection_t));
 253         disconn_info.device_role = RFCOMM_ROLE_CLIENT;
 254         g_strlcpy(disconn_info.uuid, info->uuid, BLUETOOTH_UUID_STRING_MAX);
 255         BT_DBG("Disconnected FD [%d]", conn_info->fd);
 256         _bt_convert_addr_string_to_type(disconn_info.device_addr.addr,
 257                                         conn_info->bt_addr);
 258
 259         disconn_info.socket_fd = conn_info->fd;
 260
 261         BT_DBG("Disconnection Result[%d] BT_ADDRESS[%s] UUID[%s] FD[%d]",
 262                         BLUETOOTH_ERROR_NONE, conn_info->bt_addr,
 263                         info->uuid, conn_info->fd);
 264         _bt_common_event_cb(BLUETOOTH_EVENT_RFCOMM_DISCONNECTED,
 265                         BLUETOOTH_ERROR_NONE, &disconn_info,
 266                         event_info->cb, event_info->user_data);
 267
 268         if(conn_info) {
 269                 BT_DBG("List is present deleting it");
 270                 __rfcomm_remove_conn_info_t(info, conn_info->bt_addr);
 271         }
 272         if (info->rfcomm_conns == NULL)
 273                 rfcomm_cb_data_remove(info);
 274
 275         BT_DBG("-");
 276 }
 277
 278 static gboolean __rfcomm_client_disconnect(gpointer user_data)
 279 {
 280         rfcomm_cb_data_t *info = (rfcomm_cb_data_t *) user_data;
 281         BT_INFO_C("Disconnected [RFCOMM Client]");
 282         retv_if(info == NULL, FALSE);
 283
 284         if (g_slist_find(rfcomm_clients, info) == NULL) {
 285                 BT_INFO("rfcomm resource is already freed");
 286                 return FALSE;
 287         }
 288         info->idle_id = 0;
 289         g_slist_foreach(info->rfcomm_conns,
 290                 (GFunc) _bt_rfcomm_disconnect_conn_info, info);
 291         BT_DBG("-");
 292         return FALSE;
 293 }
 294
 295 static gboolean __is_error_by_disconnect(GError *err)
 296 {
 297         return !g_strcmp0(err->message, "Connection reset by peer") ||
 298                         !g_strcmp0(err->message, "Connection timed out") ||
 299                         !g_strcmp0(err->message, "Software caused connection abort");
 300 }
 301
 302 static gboolean __client_data_received_cb(GIOChannel *chan, GIOCondition cond,
 303                                                                 gpointer data)
 304 {
 305         char *buffer = NULL;
 306         gsize len = 0;
 307         int result = BLUETOOTH_ERROR_NONE;
 308         rfcomm_cb_data_t *info = data;
 309         rfcomm_conn_info_t *conn_info = NULL;
 310         bt_event_info_t *event_info;
 311         bluetooth_rfcomm_received_data_t data_r;
 312         GIOStatus status = G_IO_STATUS_NORMAL;
 313         GError *err = NULL;
 314         int fd;
 315         BT_DBG("");
 316
 317         retv_if(info == NULL, FALSE);
 318         fd = g_io_channel_unix_get_fd(chan);
 319         if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR)) {
 320                 BT_ERR_C("RFComm Client  disconnected: %d", fd);
 321                 conn_info = __get_conn_info_from_fd(info, fd);
 322                 if (conn_info == NULL) {
 323                         BT_ERR("No Connection info found with FD [%d]", fd);
 324                         return FALSE;
 325                 }
 326                 conn_info->disconnected = TRUE;
 327                 __rfcomm_client_disconnect(info);
 328                 return FALSE;
 329         }
 330
 331         buffer = g_malloc0(BT_RFCOMM_BUFFER_LEN + 1);
 332
 333         status = g_io_channel_read_chars(chan, buffer, BT_RFCOMM_BUFFER_LEN,
 334                         &len, &err);
 335         if (status != G_IO_STATUS_NORMAL) {
 336                 BT_ERR("IO Channel read is failed with %d", status);
 337
 338                 g_free(buffer);
 339                 if (err) {
 340                         BT_ERR("IO Channel read error [%s]", err->message);
 341                         if (status == G_IO_STATUS_ERROR &&
 342                                         __is_error_by_disconnect(err)) {
 343                                 BT_ERR("cond : %d", cond);
 344                                 g_error_free(err);
 345                                 conn_info = __get_conn_info_from_fd(info, fd);
 346                                 if (conn_info == NULL) {
 347                                         BT_ERR("No Connection info found with FD [%d]", fd);
 348                                         return FALSE;
 349                                 }
 350                                 conn_info->disconnected = TRUE;
 351                                 __rfcomm_client_disconnect(info);
 352                                 return FALSE;
 353                         }
 354                         g_error_free(err);
 355                 }
 356                 return TRUE;
 357         }
 358
 359         event_info = _bt_event_get_cb_data(BT_RFCOMM_CLIENT_EVENT);
 360         if (event_info == NULL) {
 361                 g_free(buffer);
 362                 return TRUE;
 363         }
 364
 365         data_r.socket_fd = fd;
 366         data_r.buffer_size = len;
 367         data_r.buffer = buffer;
 368
 369         _bt_common_event_cb(BLUETOOTH_EVENT_RFCOMM_DATA_RECEIVED,
 370                         result, &data_r,
 371                         event_info->cb, event_info->user_data);
 372
 373         g_free(buffer);
 374         return TRUE;
 375 }
 376
 377 static void __client_connected_cb(rfcomm_cb_data_t *cb_data, char *dev_address,
 378         int result)
 379 {
 380         bluetooth_rfcomm_connection_t conn_info;
 381         bt_event_info_t *event_info;
 382         rfcomm_conn_info_t *conn_list_info = NULL;
 383         BT_INFO_C("Connected [RFCOMM Client]");
 384
 385         event_info = _bt_event_get_cb_data(BT_RFCOMM_CLIENT_EVENT);
 386         if (event_info == NULL)
 387                 return;
 388
 389         memset(&conn_info, 0x00, sizeof(bluetooth_rfcomm_connection_t));
 390         conn_info.device_role = RFCOMM_ROLE_CLIENT;
 391         g_strlcpy(conn_info.uuid, cb_data->uuid, BLUETOOTH_UUID_STRING_MAX);
 392         _bt_convert_addr_string_to_type(conn_info.device_addr.addr,
 393                         dev_address);
 394         conn_list_info = __get_conn_info_from_address(cb_data, dev_address);
 395         if (conn_list_info == NULL) {
 396                 BT_ERR("Device addres %s not found in connection list", dev_address);
 397                 return;
 398         }
 399         conn_info.socket_fd = conn_list_info->fd;
 400         conn_info.server_id = -1;
 401
 402         BT_DBG("Connection Result[%d] BT_ADDRESS[%s] UUID[%s] FD[%d]",
 403                         result, conn_list_info->bt_addr, cb_data->uuid, conn_list_info->fd);
 404         _bt_common_event_cb(BLUETOOTH_EVENT_RFCOMM_CONNECTED,
 405                         result, &conn_info,
 406                         event_info->cb, event_info->user_data);
 407         BT_DBG("-");
 408 }
 409
 410 #endif
 411
 412 int new_connection(const char *path, int fd, bluetooth_device_address_t *addr)
 413 {
 414         rfcomm_cb_data_t *info;
 415         GIOChannel *data_io;
 416         rfcomm_conn_info_t *conn_info = NULL;
 417         BT_DBG("%s %d", path, fd);
 418         char address[BT_ADDRESS_STRING_SIZE];
 419         _bt_convert_addr_type_to_string(address,
 420                                 (unsigned char *)addr);
 421         info = __find_rfcomm_info_from_path(path);
 422         if (info == NULL)
 423                 return -1;
 424         conn_info = __get_conn_info_from_address(info, address);
 425
 426         if (conn_info == NULL) {
 427                 BT_ERR("Device Address %s not found in connection list", address);
 428                 return -1;
 429         }
 430         conn_info->fd = fd;
 431         BT_DBG("connection info fd %d", conn_info->fd);
 432         data_io = g_io_channel_unix_new(fd);
 433         g_io_channel_set_encoding(data_io, NULL, NULL);
 434         g_io_channel_set_flags(data_io, G_IO_FLAG_NONBLOCK, NULL);
 435         conn_info->watch_id = g_io_add_watch(data_io,
 436                                 G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
 437                                 __client_data_received_cb, info);
 438
 439         g_io_channel_unref(data_io);
 440
 441         __client_connected_cb(info, address,BLUETOOTH_ERROR_NONE);
 442
 443         return 0;
 444 }
 445
 446 static void __bt_connect_response_cb(GDBusProxy *proxy, GAsyncResult *res,
 447                                                         gpointer user_data)
 448
 449 {
 450         GError *error = NULL;
 451         rfcomm_cb_data_t *cb_data;
 452         char dev_address[BT_ADDRESS_STRING_SIZE];
 453         const char *path;
 454         BT_DBG("+");
 455
 456         ret_if(user_data == NULL);
 457
 458         cb_data = user_data;
 459
 460         if (!g_dbus_proxy_call_finish(proxy, res, &error)) {
 461                 int result;
 462
 463                 BT_ERR("Error : %s \n", error->message);
 464
 465                 if (g_strcmp0(error->message, "In Progress") == 0)
 466                         result = BLUETOOTH_ERROR_DEVICE_BUSY;
 467                 else
 468                         result = BLUETOOTH_ERROR_INTERNAL;
 469                 path = g_dbus_proxy_get_object_path(proxy);
 470                 _bt_convert_device_path_to_address(path, dev_address);
 471                 __rfcomm_client_connected_cb(cb_data, dev_address, result);
 472
 473                 g_error_free(error);
 474         }
 475         if (proxy)
 476                 g_object_unref(proxy);
 477
 478         BT_DBG("-");
 479 }
 480
 481 static void __bt_discover_service_response_cb(GDBusProxy *proxy,
 482                                 GAsyncResult *res, gpointer user_data)
 483 {
 484         rfcomm_cb_data_t *cb_data;
 485         int ret = 0;
 486         GError *err = NULL;
 487         bt_register_profile_info_t info = {0};
 488         int result = BLUETOOTH_ERROR_NONE;
 489         char dev_address[BT_ADDRESS_STRING_SIZE];
 490         const char *path;
 491
 492         BT_DBG("+");
 493
 494         ret_if(user_data == NULL);
 495
 496         cb_data = user_data;
 497
 498         path = g_dbus_proxy_get_object_path(proxy);
 499
 500         _bt_convert_device_path_to_address(path, dev_address);
 501         BT_DBG("Device Adress [%s]", dev_address);
 502         g_dbus_proxy_call_finish(proxy, res, &err);
 503         if (proxy)
 504                 g_object_unref(proxy);
 505
 506         if (err != NULL) {
 507                 BT_ERR("Error occured in Proxy call [%s]\n", err->message);
 508                 if (!strcmp("Operation canceled", err->message)) {
 509                         result = BLUETOOTH_ERROR_CANCEL_BY_USER;
 510                 } else if (!strcmp("In Progress", err->message)) {
 511                         result = BLUETOOTH_ERROR_IN_PROGRESS;
 512                 } else if (!strcmp("Host is down", err->message)) {
 513                         result = BLUETOOTH_ERROR_HOST_DOWN;
 514                 } else if (!strcmp(BT_TIMEOUT_MESSAGE, err->message)) {
 515                         result = BLUETOOTH_ERROR_SERVICE_SEARCH_ERROR;
 516                         ret = _bt_cancel_discovers(dev_address);
 517                         if (ret != BLUETOOTH_ERROR_NONE)
 518                                 BT_ERR("Error: While CancelDiscovery");
 519                 } else {
 520                         result = BLUETOOTH_ERROR_CONNECTION_ERROR;
 521                 }
 522                 __rfcomm_client_connected_cb(cb_data, dev_address, result);
 523                 goto done;
 524         } else {
 525                 BT_INFO("Services are Updated checking required uuid is there");
 526                 /* Check here for uuid present */
 527                 ret = _bt_discover_service_uuids(dev_address, (char *)cb_data->uuid);
 528                 if (ret == BLUETOOTH_ERROR_NONE) {
 529                         info.uuid = (char *)cb_data->uuid;
 530                         info.obj_path = cb_data->obj_path;
 531                         info.role = "client";
 532
 533                         ret = _bt_register_profile(&info, FALSE);
 534                         if (ret < 0)
 535                                 BT_DBG("Error: register profile");
 536                         ret = _bt_connect_profile(dev_address, cb_data->uuid,
 537                                                 __bt_connect_response_cb, cb_data);
 538
 539                         if (ret != BLUETOOTH_ERROR_NONE) {
 540                                 BT_ERR("ConnectProfile failed");
 541                                 result = BLUETOOTH_ERROR_CONNECTION_ERROR;
 542                                 __rfcomm_client_connected_cb(cb_data, dev_address, result);
 543                                 goto done;
 544                         }
 545                 } else {
 546                         BT_ERR("remote uuid not found");
 547                         result = BLUETOOTH_ERROR_SERVICE_NOT_FOUND;
 548                         __rfcomm_client_connected_cb(cb_data, dev_address, result);
 549                 }
 550         }
 551 done:
 552         if (err)
 553                 g_clear_error(&err);
 554 }
 555
 556 BT_EXPORT_API int bluetooth_rfcomm_connect(
 557                 const bluetooth_device_address_t *remote_bt_address,
 558                 const char *remote_uuid)
 559 {
 560
 561 #ifdef RFCOMM_DIRECT
 562         rfcomm_cb_data_t *cb_data = NULL;
 563         rfcomm_conn_info_t *conn = NULL;
 564 #else
 565         int result;
 566         int connect_type;
 567         bt_user_info_t *user_info;
 568         char uuid[BLUETOOTH_UUID_STRING_MAX];
 569 #endif
 570         BT_CHECK_PARAMETER(remote_bt_address, return);
 571         BT_CHECK_PARAMETER(remote_uuid, return);
 572         BT_CHECK_ENABLED(return);
 573
 574 #ifdef RFCOMM_DIRECT
 575         BT_INFO_C("<<<<<<<<< RFCOMM Connect request from app >>>>>>>>>>>");
 576         int ret;
 577         int id, object_id;
 578         char *path;
 579
 580         if (_bt_check_privilege(BT_BLUEZ_SERVICE, BT_RFCOMM_CLIENT_CONNECT)
 581              == BLUETOOTH_ERROR_PERMISSION_DEINED) {
 582                 BT_ERR("Don't have a privilege to use this API");
 583                 return BLUETOOTH_ERROR_PERMISSION_DEINED;
 584         }
 585
 586         id = __rfcomm_assign_id();
 587         if (id < 0)
 588                 return BLUETOOTH_ERROR_INTERNAL;
 589
 590         cb_data = __find_rfcomm_info_from_uuid(remote_uuid);
 591         if (!cb_data) {
 592                 path = g_strdup_printf("/org/socket/client/%d/%d", getpid(), id);
 593
 594                 object_id = _bt_register_new_conn(path, new_connection);
 595                 if (object_id < 0) {
 596                         __rfcomm_delete_id(id);
 597                         return BLUETOOTH_ERROR_INTERNAL;
 598                 }
 599
 600                 cb_data = g_new0(rfcomm_cb_data_t, 1);
 601                 g_strlcpy(cb_data->uuid, remote_uuid, BLUETOOTH_UUID_STRING_MAX);
 602                 cb_data->obj_path = path;
 603                 cb_data->object_id = object_id;
 604                 cb_data->id = id;
 605         }
 606         conn = g_new0(rfcomm_conn_info_t, 1);
 607         conn->fd = -1;
 608         _bt_convert_addr_type_to_string(conn->bt_addr,
 609                                 (unsigned char *)remote_bt_address->addr);
 610
 611         BT_DBG("Connecting to %s uuid %s", conn->bt_addr, remote_uuid);
 612         cb_data->rfcomm_conns = g_slist_append(cb_data->rfcomm_conns, conn);
 613         ret = _bt_discover_services(conn->bt_addr, (char *)remote_uuid,
 614                                 __bt_discover_service_response_cb, cb_data);
 615         if (ret != BLUETOOTH_ERROR_NONE) {
 616                 BT_ERR("Error returned while service discovery");
 617                 __rfcomm_remove_conn_info_t(cb_data, conn->bt_addr);
 618                 if (cb_data->rfcomm_conns == NULL)
 619                         rfcomm_cb_data_remove(cb_data);
 620                 return BLUETOOTH_ERROR_INTERNAL;
 621         }
 622         if (g_slist_find(rfcomm_clients, cb_data) == NULL) {
 623                 BT_INFO("Adding callback information to rfcomm_clients");
 624                 rfcomm_clients = g_slist_append(rfcomm_clients, cb_data);
 625         } else
 626                 BT_INFO("Callback information is already added");
 627
 628         return BLUETOOTH_ERROR_NONE;
 629 #else
 630         user_info = _bt_get_user_data(BT_COMMON);
 631         retv_if(user_info->cb == NULL, BLUETOOTH_ERROR_INTERNAL);
 632
 633         /* connect_type:  BT_RFCOMM_UUID / BT_RFCOMM_CHANNEL*/
 634         /* In now, we only support to connecty using UUID */
 635         connect_type = BT_RFCOMM_UUID;
 636
 637         if (_bt_check_privilege(BT_BLUEZ_SERVICE, BT_RFCOMM_CLIENT_CONNECT)
 638              == BLUETOOTH_ERROR_PERMISSION_DEINED) {
 639                 BT_ERR("Don't have a privilege to use this API");
 640                 return BLUETOOTH_ERROR_PERMISSION_DEINED;
 641         }
 642
 643         BT_INIT_PARAMS();
 644         BT_ALLOC_PARAMS(in_param1, in_param2, in_param3, in_param4, out_param);
 645
 646         g_array_append_vals(in_param1, remote_bt_address,
 647                                 sizeof(bluetooth_device_address_t));
 648
 649         g_strlcpy(uuid, remote_uuid, sizeof(uuid));
 650         g_array_append_vals(in_param2, uuid, BLUETOOTH_UUID_STRING_MAX);
 651
 652         g_array_append_vals(in_param3, &connect_type, sizeof(int));
 653
 654         result = _bt_send_request_async(BT_BLUEZ_SERVICE,
 655                                 BT_RFCOMM_CLIENT_CONNECT,
 656                                 in_param1, in_param2,
 657                                 in_param3, in_param4,
 658                                 user_info->cb, user_info->user_data);
 659
 660         BT_DBG("result: %x", result);
 661
 662         BT_FREE_PARAMS(in_param1, in_param2, in_param3, in_param4, out_param);
 663
 664         return result;
 665 #endif
 666 }
 667
 668 BT_EXPORT_API int bluetooth_rfcomm_client_is_connected(const bluetooth_device_address_t *device_address, gboolean *connected)
 669 {
 670         GSList *l;
 671         GSList *conn_list = NULL;
 672         rfcomm_cb_data_t *client_info;
 673         rfcomm_conn_info_t *conn_info;
 674         char address[BT_ADDRESS_STRING_SIZE] = { 0 };
 675
 676         BT_CHECK_PARAMETER(device_address, return);
 677         BT_CHECK_PARAMETER(connected, return);
 678
 679         _bt_convert_addr_type_to_string(address, (unsigned char *)device_address->addr);
 680         *connected = FALSE;
 681
 682         for (l = rfcomm_clients; l != NULL; l = l->next) {
 683                 client_info = l->data;
 684                 if (client_info == NULL)
 685                         continue;
 686                 for(conn_list = client_info->rfcomm_conns;
 687                         conn_list != NULL; conn_list = conn_list->next) {
 688                         conn_info = conn_list->data;
 689                         if(conn_info == NULL)
 690                                 continue;
 691
 692                         if (g_strcmp0(address, conn_info->bt_addr) == 0) {
 693                                 *connected = TRUE;
 694                                 return BLUETOOTH_ERROR_NONE;
 695                         }
 696                 }
 697         }
 698
 699         return BLUETOOTH_ERROR_NONE;
 700 }
 701
 702 BT_EXPORT_API gboolean bluetooth_rfcomm_is_client_connected(void)
 703 {
 704         int result;
 705         int connected = FALSE;
 706
 707         BT_CHECK_ENABLED(return);
 708
 709         BT_INIT_PARAMS();
 710         BT_ALLOC_PARAMS(in_param1, in_param2, in_param3, in_param4, out_param);
 711
 712         result = _bt_send_request(BT_BLUEZ_SERVICE,
 713                         BT_RFCOMM_CLIENT_IS_CONNECTED,
 714                         in_param1, in_param2, in_param3,
 715                         in_param4, &out_param);
 716
 717         BT_DBG("result: %x", result);
 718
 719         if (result == BLUETOOTH_ERROR_NONE) {
 720                 connected = g_array_index(out_param,
 721                                 int, 0);
 722         } else {
 723                 BT_ERR("Fail to send request");
 724         }
 725
 726         BT_FREE_PARAMS(in_param1, in_param2, in_param3, in_param4, out_param);
 727
 728         return connected;
 729 }
 730
 731 BT_EXPORT_API int bluetooth_rfcomm_disconnect(int socket_fd)
 732 {
 733 #ifdef RFCOMM_DIRECT
 734         rfcomm_cb_data_t *info;
 735         rfcomm_conn_info_t *conn_info;
 736         BT_INFO_C("<<<<<<<<< RFCOMM Disconnect request from app >>>>>>>>");
 737         BT_CHECK_ENABLED(return);
 738
 739         if (_bt_check_privilege(BT_BLUEZ_SERVICE, BT_RFCOMM_SOCKET_DISCONNECT)
 740              == BLUETOOTH_ERROR_PERMISSION_DEINED) {
 741                 BT_ERR("Don't have a privilege to use this API");
 742                 return BLUETOOTH_ERROR_PERMISSION_DEINED;
 743         }
 744
 745         if (socket_fd < 0) {
 746                 BT_ERR("Invalid FD");
 747                 return BLUETOOTH_ERROR_INVALID_PARAM;
 748         }
 749         BT_DBG("FDD %d", socket_fd);
 750
 751         info = __find_rfcomm_info_with_fd(socket_fd);
 752         if (info == NULL) {
 753                 BT_DBG("Could not find in client, so check in server");
 754                 return bluetooth_rfcomm_server_disconnect(socket_fd);
 755         }
 756         conn_info = __get_conn_info_from_fd(info, socket_fd);
 757         if (conn_info == NULL) {
 758                 BT_ERR("FATAL Error");
 759                 return BLUETOOTH_ERROR_INTERNAL;
 760         }
 761         if (conn_info->watch_id <= 0) {
 762                 BT_ERR("Invalid state");
 763                 return BLUETOOTH_ERROR_NOT_CONNECTED;
 764         }
 765         conn_info->disconnected = TRUE;
 766         close(socket_fd);
 767         BT_INFO("conn_info %s", conn_info->bt_addr);
 768         _bt_disconnect_profile(conn_info->bt_addr, info->uuid, NULL,NULL);
 769         if (info->idle_id == 0)
 770                 info->idle_id = g_idle_add(__rfcomm_client_disconnect, info);
 771
 772         return BLUETOOTH_ERROR_NONE;
 773 #else
 774         int result;
 775         int service_function;
 776
 777         BT_CHECK_ENABLED(return);
 778
 779         BT_INIT_PARAMS();
 780         BT_ALLOC_PARAMS(in_param1, in_param2, in_param3, in_param4, out_param);
 781
 782         /* Support the OSP */
 783         if (socket_fd == -1) {
 784                 /* Cancel connect */
 785                 service_function = BT_RFCOMM_CLIENT_CANCEL_CONNECT;
 786         } else {
 787                 g_array_append_vals(in_param1, &socket_fd, sizeof(int));
 788                 service_function = BT_RFCOMM_SOCKET_DISCONNECT;
 789         }
 790
 791         result = _bt_send_request(BT_BLUEZ_SERVICE, service_function,
 792                 in_param1, in_param2, in_param3, in_param4, &out_param);
 793
 794         BT_DBG("result: %x", result);
 795
 796         BT_FREE_PARAMS(in_param1, in_param2, in_param3, in_param4, out_param);
 797
 798         return result;
 799 #endif
 800 }
 801
 802 BT_EXPORT_API int bluetooth_rfcomm_write(int fd, const char *buf, int length)
 803 {
 804 #ifdef RFCOMM_DIRECT
 805         int written;
 806 #else
 807         char *buffer;
 808 #endif
 809         int result;
 810
 811         BT_CHECK_PARAMETER(buf, return);
 812 #ifndef RFCOMM_DIRECT
 813         BT_CHECK_ENABLED(return);
 814 #endif
 815         retv_if(length <= 0, BLUETOOTH_ERROR_INVALID_PARAM);
 816
 817 #ifdef RFCOMM_DIRECT
 818         switch (privilege_token) {
 819         case 0:
 820                 result = _bt_check_privilege(BT_BLUEZ_SERVICE, BT_RFCOMM_SOCKET_WRITE);
 821
 822                 if (result == BLUETOOTH_ERROR_NONE) {
 823                         privilege_token = 1; /* Have a permission */
 824                 } else if (result == BLUETOOTH_ERROR_PERMISSION_DEINED) {
 825                         BT_ERR("Don't have a privilege to use this API");
 826                         privilege_token = -1; /* Don't have a permission */
 827                         return BLUETOOTH_ERROR_PERMISSION_DEINED;
 828                 } else {
 829                         /* Just break - It is not related with permission error */
 830                 }
 831                 break;
 832         case 1:
 833                 /* Already have a privilege */
 834                 break;
 835         case -1:
 836                 return BLUETOOTH_ERROR_PERMISSION_DEINED;
 837         default:
 838                 /* Invalid privilge token value */
 839                 return BLUETOOTH_ERROR_INTERNAL;
 840         }
 841
 842         written = write(fd, buf, length);
 843         /*BT_DBG("Length %d, written = %d, balance(%d)",
 844                          length, written, length - written); */
 845         return written;
 846 #else
 847         BT_INIT_PARAMS();
 848         BT_ALLOC_PARAMS(in_param1, in_param2, in_param3, in_param4, out_param);
 849
 850         buffer = g_malloc0(length + 1);
 851
 852         memcpy(buffer, buf, length);
 853
 854         g_array_append_vals(in_param1, &fd, sizeof(int));
 855         g_array_append_vals(in_param2, &length, sizeof(int));
 856         g_array_append_vals(in_param3, buffer, length);
 857
 858         result = _bt_send_request(BT_BLUEZ_SERVICE, BT_RFCOMM_SOCKET_WRITE,
 859                 in_param1, in_param2, in_param3, in_param4, &out_param);
 860
 861         BT_DBG("result: %x", result);
 862
 863         BT_FREE_PARAMS(in_param1, in_param2, in_param3, in_param4, out_param);
 864
 865         g_free(buffer);
 866
 867         return result;
 868 #endif
 869 }
 870