bt-api/bt-rfcomm-client.c

   1 /*
   2  * Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *              http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17
  18 #include <string.h>
  19 #ifdef RFCOMM_DIRECT
  20 #include <errno.h>
  21 #include <gio/gunixfdlist.h>
  22 #endif
  23
  24 #include "bluetooth-api.h"
  25 #include "bt-internal-types.h"
  26
  27 #include "bt-common.h"
  28 #include "bt-request-sender.h"
  29 #include "bt-event-handler.h"
  30
  31 #ifdef RFCOMM_DIRECT
  32
  33 #define BT_TIMEOUT_MESSAGE "Did not receive a reply. Possible causes include: " \
  34                         "the remote application did not send a reply, " \
  35                         "the message bus security policy blocked the reply, " \
  36                         "the reply timeout expired, or the network connection " \
  37                         "was broken."
  38
  39 static GSList *rfcomm_clients;
  40
  41 /* Variable for privilege, only for write API,
  42   before we should reduce time to bt-service dbus calling
  43   -1 : Don't have a permission to access API
  44   0 : Initial value, not yet check
  45   1 : Have a permission to access API
  46 */
  47 static int privilege_token;
  48
  49 typedef struct {
  50         char bt_addr[BT_ADDRESS_STRING_SIZE];
  51         int fd;
  52         int watch_id;
  53         gboolean disconnected;
  54 } rfcomm_conn_info_t;
  55
  56 typedef struct {
  57         char uuid[BLUETOOTH_UUID_STRING_MAX];
  58         char *device_path;
  59         char *obj_path;
  60         int object_id;
  61         int id;
  62         GSList *rfcomm_conns;
  63         unsigned int idle_id;
  64 } rfcomm_cb_data_t;
  65
  66 static void __client_connected_cb(rfcomm_cb_data_t *cb_data,
  67         char *dev_address, int result);
  68
  69 static void __bt_free_cb_data(rfcomm_cb_data_t *cb_data)
  70 {
  71         BT_DBG("+");
  72
  73         if (cb_data->id >= 0)
  74                 __rfcomm_delete_id(cb_data->id);
  75
  76         if (cb_data->object_id > 0)
  77                 _bt_unregister_gdbus(cb_data->object_id);
  78
  79         if (cb_data->obj_path) {
  80                 BT_INFO("Unregister profile");
  81                 _bt_unregister_profile(cb_data->obj_path);
  82         }
  83
  84         if (cb_data->idle_id != 0) {
  85                 BT_INFO("Removing idle source");
  86                 g_source_remove(cb_data->idle_id);
  87         }
  88
  89         g_free(cb_data->obj_path);
  90
  91         g_free(cb_data->device_path);
  92         g_free(cb_data);
  93         BT_DBG("-");
  94 }
  95
  96 static void rfcomm_cb_data_remove(rfcomm_cb_data_t *info)
  97 {
  98         if (info) {
  99                 BT_INFO("No more device connected remove info");
 100                 rfcomm_clients = g_slist_remove(rfcomm_clients, info);
 101                 __bt_free_cb_data(info);
 102         }
 103 }
 104
 105 gint compare(gpointer *a, gpointer *b)
 106 {
 107         rfcomm_conn_info_t *node = (rfcomm_conn_info_t *)a;
 108         char *address = (char *)b;
 109         return g_strcmp0(node->bt_addr, address);
 110 }
 111
 112 gint compare_fd(gpointer *a, gpointer *b)
 113 {
 114         rfcomm_conn_info_t *node = (rfcomm_conn_info_t *)a;
 115         int fd = (int )*b;
 116         if (node->fd == fd)
 117                 return 0;
 118         return 1;
 119 }
 120 static void __bt_free_conn(rfcomm_conn_info_t *conn)
 121 {
 122         BT_DBG("+");
 123
 124         if (conn == NULL)
 125                 return;
 126
 127         if (conn->fd > 0)
 128                 close(conn->fd);
 129         if (conn->watch_id > 0) {
 130                 g_source_remove(conn->watch_id);
 131                 conn->watch_id = 0;
 132         }
 133         g_free(conn);
 134
 135         BT_DBG("-");
 136 }
 137
 138 static void __rfcomm_remove_conn_info_t(rfcomm_cb_data_t *info, char *address)
 139 {
 140         GSList *l = NULL;
 141         rfcomm_conn_info_t *conn_info = NULL;
 142         l = g_slist_find_custom(info->rfcomm_conns, address, (GCompareFunc)compare);
 143         if (l)
 144                 conn_info = l->data;
 145         if (conn_info) {
 146                 info->rfcomm_conns = g_slist_remove(info->rfcomm_conns, conn_info);
 147                 __bt_free_conn(conn_info);
 148         }
 149 }
 150
 151 static rfcomm_conn_info_t *__get_conn_info_from_fd(rfcomm_cb_data_t *info,
 152         int fd)
 153 {
 154         GSList *l;
 155         rfcomm_conn_info_t *device_node = NULL;
 156         for(l = info->rfcomm_conns; l != NULL; l = l->next) {
 157                 device_node = l->data;
 158                 if ( device_node && device_node->fd == fd)
 159                         return device_node;
 160         }
 161         return NULL;
 162 }
 163
 164 static rfcomm_conn_info_t *__get_conn_info_from_address(rfcomm_cb_data_t *info,
 165                 char *dev_address)
 166 {
 167         GSList *l = NULL;
 168         rfcomm_conn_info_t *conn_info = NULL;
 169         l = g_slist_find_custom(info->rfcomm_conns, dev_address,
 170                 (GCompareFunc)compare);
 171         if (l)
 172                 conn_info = l->data;
 173         return conn_info;
 174 }
 175
 176 static void __rfcomm_client_connected_cb(rfcomm_cb_data_t *info,
 177         char *dev_address, int result)
 178 {
 179         __client_connected_cb(info, dev_address, result);
 180         __rfcomm_remove_conn_info_t(info, dev_address);
 181
 182         if (info->rfcomm_conns == NULL)
 183                 rfcomm_cb_data_remove(info);
 184 }
 185
 186 static rfcomm_cb_data_t *__find_rfcomm_info_with_fd(int fd)
 187 {
 188         GSList *l;
 189         GSList *device_fd;
 190         for (l = rfcomm_clients; l != NULL; l = l->next) {
 191                 rfcomm_cb_data_t *info = l->data;
 192                 device_fd = g_slist_find_custom(info->rfcomm_conns, &fd,
 193                         (GCompareFunc)compare_fd);
 194                 if (device_fd)
 195                         return info;
 196         }
 197
 198         return NULL;
 199 }
 200
 201 static rfcomm_cb_data_t *__find_rfcomm_info_from_path(const char *path)
 202 {
 203         GSList *l;
 204
 205         for (l = rfcomm_clients; l != NULL; l = l->next) {
 206                 rfcomm_cb_data_t *info = l->data;
 207
 208                 if (info != NULL)
 209                         if (g_strcmp0(info->obj_path, path) == 0)
 210                                 return info;
 211         }
 212
 213         return NULL;
 214 }
 215
 216 static rfcomm_cb_data_t *__find_rfcomm_info_from_uuid(const char *uuid)
 217 {
 218         GSList *l;
 219
 220         for (l = rfcomm_clients; l != NULL; l = l->next) {
 221                 rfcomm_cb_data_t *info = l->data;
 222
 223                 if (g_strcmp0(info->uuid, uuid) == 0)
 224                         return info;
 225         }
 226
 227         return NULL;
 228 }
 229
 230 static void _bt_rfcomm_disconnect_conn_info(rfcomm_conn_info_t *conn_info,
 231         rfcomm_cb_data_t *info)
 232 {
 233         if (conn_info == NULL)
 234                 return;
 235
 236         bluetooth_rfcomm_disconnection_t disconn_info;
 237         bt_event_info_t *event_info = NULL;
 238         if (conn_info->disconnected == FALSE)
 239                 return;
 240         event_info = _bt_event_get_cb_data(BT_RFCOMM_CLIENT_EVENT);
 241         if (event_info == NULL) {
 242                 if (info->rfcomm_conns == NULL)
 243                         rfcomm_cb_data_remove(info);
 244                 return;
 245         }
 246         memset(&disconn_info, 0x00, sizeof(bluetooth_rfcomm_disconnection_t));
 247         disconn_info.device_role = RFCOMM_ROLE_CLIENT;
 248         g_strlcpy(disconn_info.uuid, info->uuid, BLUETOOTH_UUID_STRING_MAX);
 249         BT_DBG("Disconnected FD [%d]", conn_info->fd);
 250         _bt_convert_addr_string_to_type(disconn_info.device_addr.addr,
 251                                         conn_info->bt_addr);
 252
 253         disconn_info.socket_fd = conn_info->fd;
 254
 255         BT_DBG("Disconnection Result[%d] BT_ADDRESS[%s] UUID[%s] FD[%d]",
 256                         BLUETOOTH_ERROR_NONE, conn_info->bt_addr,
 257                         info->uuid, conn_info->fd);
 258         _bt_common_event_cb(BLUETOOTH_EVENT_RFCOMM_DISCONNECTED,
 259                         BLUETOOTH_ERROR_NONE, &disconn_info,
 260                         event_info->cb, event_info->user_data);
 261
 262         if(conn_info) {
 263                 BT_DBG("List is present deleting it");
 264                 __rfcomm_remove_conn_info_t(info, conn_info->bt_addr);
 265         }
 266         if (info->rfcomm_conns == NULL)
 267                 rfcomm_cb_data_remove(info);
 268
 269         BT_DBG("-");
 270 }
 271
 272 static gboolean __rfcomm_client_disconnect(gpointer user_data)
 273 {
 274         rfcomm_cb_data_t *info = (rfcomm_cb_data_t *) user_data;
 275         BT_INFO_C("Disconnected [RFCOMM Client]");
 276         retv_if(info == NULL, FALSE);
 277
 278         if (g_slist_find(rfcomm_clients, info) == NULL) {
 279                 BT_INFO("rfcomm resource is already freed");
 280                 return FALSE;
 281         }
 282         info->idle_id = 0;
 283         g_slist_foreach(info->rfcomm_conns,
 284                 (GFunc) _bt_rfcomm_disconnect_conn_info, info);
 285         BT_DBG("-");
 286         return FALSE;
 287 }
 288
 289 static gboolean __is_error_by_disconnect(GError *err)
 290 {
 291         return !g_strcmp0(err->message, "Connection reset by peer") ||
 292                         !g_strcmp0(err->message, "Connection timed out") ||
 293                         !g_strcmp0(err->message, "Software caused connection abort");
 294 }
 295
 296 static gboolean __client_data_received_cb(GIOChannel *chan, GIOCondition cond,
 297                                                                 gpointer data)
 298 {
 299         char *buffer = NULL;
 300         gsize len = 0;
 301         int result = BLUETOOTH_ERROR_NONE;
 302         rfcomm_cb_data_t *info = data;
 303         rfcomm_conn_info_t *conn_info = NULL;
 304         bt_event_info_t *event_info;
 305         bluetooth_rfcomm_received_data_t data_r;
 306         GIOStatus status = G_IO_STATUS_NORMAL;
 307         GError *err = NULL;
 308         int fd;
 309         BT_DBG("");
 310
 311         retv_if(info == NULL, FALSE);
 312         fd = g_io_channel_unix_get_fd(chan);
 313         if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR)) {
 314                 BT_ERR_C("RFComm Client  disconnected: %d", fd);
 315                 conn_info = __get_conn_info_from_fd(info, fd);
 316                 if (conn_info == NULL) {
 317                         BT_ERR("No Connection info found with FD [%d]", fd);
 318                         return FALSE;
 319                 }
 320                 conn_info->disconnected = TRUE;
 321                 __rfcomm_client_disconnect(info);
 322                 return FALSE;
 323         }
 324
 325         buffer = g_malloc0(BT_RFCOMM_BUFFER_LEN + 1);
 326
 327         status = g_io_channel_read_chars(chan, buffer, BT_RFCOMM_BUFFER_LEN,
 328                         &len, &err);
 329         if (status != G_IO_STATUS_NORMAL) {
 330                 BT_ERR("IO Channel read is failed with %d", status);
 331
 332                 g_free(buffer);
 333                 if (err) {
 334                         BT_ERR("IO Channel read error [%s]", err->message);
 335                         if (status == G_IO_STATUS_ERROR &&
 336                                         __is_error_by_disconnect(err)) {
 337                                 BT_ERR("cond : %d", cond);
 338                                 g_error_free(err);
 339                                 conn_info = __get_conn_info_from_fd(info, fd);
 340                                 if (conn_info == NULL) {
 341                                         BT_ERR("No Connection info found with FD [%d]", fd);
 342                                         return FALSE;
 343                                 }
 344                                 conn_info->disconnected = TRUE;
 345                                 __rfcomm_client_disconnect(info);
 346                                 return FALSE;
 347                         }
 348                         g_error_free(err);
 349                 }
 350                 return TRUE;
 351         }
 352
 353         event_info = _bt_event_get_cb_data(BT_RFCOMM_CLIENT_EVENT);
 354         if (event_info == NULL) {
 355                 g_free(buffer);
 356                 return TRUE;
 357         }
 358
 359         data_r.socket_fd = fd;
 360         data_r.buffer_size = len;
 361         data_r.buffer = buffer;
 362
 363         _bt_common_event_cb(BLUETOOTH_EVENT_RFCOMM_DATA_RECEIVED,
 364                         result, &data_r,
 365                         event_info->cb, event_info->user_data);
 366
 367         g_free(buffer);
 368         return TRUE;
 369 }
 370
 371 static void __client_connected_cb(rfcomm_cb_data_t *cb_data, char *dev_address,
 372         int result)
 373 {
 374         bluetooth_rfcomm_connection_t conn_info;
 375         bt_event_info_t *event_info;
 376         rfcomm_conn_info_t *conn_list_info = NULL;
 377         BT_INFO_C("Connected [RFCOMM Client]");
 378
 379         event_info = _bt_event_get_cb_data(BT_RFCOMM_CLIENT_EVENT);
 380         if (event_info == NULL)
 381                 return;
 382
 383         memset(&conn_info, 0x00, sizeof(bluetooth_rfcomm_connection_t));
 384         conn_info.device_role = RFCOMM_ROLE_CLIENT;
 385         g_strlcpy(conn_info.uuid, cb_data->uuid, BLUETOOTH_UUID_STRING_MAX);
 386         _bt_convert_addr_string_to_type(conn_info.device_addr.addr,
 387                         dev_address);
 388         conn_list_info = __get_conn_info_from_address(cb_data, dev_address);
 389         if (conn_list_info == NULL) {
 390                 BT_ERR("Device addres %s not found in connection list", dev_address);
 391                 return;
 392         }
 393         conn_info.socket_fd = conn_list_info->fd;
 394         conn_info.server_id = -1;
 395
 396         BT_DBG("Connection Result[%d] BT_ADDRESS[%s] UUID[%s] FD[%d]",
 397                         result, conn_list_info->bt_addr, cb_data->uuid, conn_list_info->fd);
 398         _bt_common_event_cb(BLUETOOTH_EVENT_RFCOMM_CONNECTED,
 399                         result, &conn_info,
 400                         event_info->cb, event_info->user_data);
 401         BT_DBG("-");
 402 }
 403
 404 #endif
 405
 406 int new_connection(const char *path, int fd, bluetooth_device_address_t *addr)
 407 {
 408         rfcomm_cb_data_t *info;
 409         GIOChannel *data_io;
 410         rfcomm_conn_info_t *conn_info = NULL;
 411         BT_DBG("%s %d", path, fd);
 412         char address[BT_ADDRESS_STRING_SIZE];
 413         _bt_convert_addr_type_to_string(address,
 414                                 (unsigned char *)addr);
 415         info = __find_rfcomm_info_from_path(path);
 416         if (info == NULL)
 417                 return -1;
 418         conn_info = __get_conn_info_from_address(info, address);
 419
 420         if (conn_info == NULL) {
 421                 BT_ERR("Device Address %s not found in connection list", address);
 422                 return -1;
 423         }
 424         conn_info->fd = fd;
 425         BT_DBG("connection info fd %d", conn_info->fd);
 426         data_io = g_io_channel_unix_new(fd);
 427         g_io_channel_set_encoding(data_io, NULL, NULL);
 428         g_io_channel_set_flags(data_io, G_IO_FLAG_NONBLOCK, NULL);
 429         conn_info->watch_id = g_io_add_watch(data_io,
 430                                 G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
 431                                 __client_data_received_cb, info);
 432
 433         g_io_channel_unref(data_io);
 434
 435         __client_connected_cb(info, address,BLUETOOTH_ERROR_NONE);
 436
 437         return 0;
 438 }
 439
 440 static void __bt_connect_response_cb(GDBusProxy *proxy, GAsyncResult *res,
 441                                                         gpointer user_data)
 442
 443 {
 444         GError *error = NULL;
 445         rfcomm_cb_data_t *cb_data;
 446         char dev_address[BT_ADDRESS_STRING_SIZE];
 447         const char *path;
 448         BT_DBG("+");
 449
 450         ret_if(user_data == NULL);
 451
 452         cb_data = user_data;
 453
 454         if (!g_dbus_proxy_call_finish(proxy, res, &error)) {
 455                 int result;
 456                 g_dbus_error_strip_remote_error(error);
 457                 BT_ERR("Error : %s \n", error->message);
 458
 459                 if (g_strcmp0(error->message, "In Progress") == 0)
 460                         result = BLUETOOTH_ERROR_DEVICE_BUSY;
 461                 else
 462                         result = BLUETOOTH_ERROR_INTERNAL;
 463                 path = g_dbus_proxy_get_object_path(proxy);
 464                 _bt_convert_device_path_to_address(path, dev_address);
 465                 __rfcomm_client_connected_cb(cb_data, dev_address, result);
 466
 467                 g_error_free(error);
 468         }
 469         if (proxy)
 470                 g_object_unref(proxy);
 471
 472         BT_DBG("-");
 473 }
 474
 475 static void __bt_discover_service_response_cb(GDBusProxy *proxy,
 476                                 GAsyncResult *res, gpointer user_data)
 477 {
 478         rfcomm_cb_data_t *cb_data;
 479         int ret = 0;
 480         GError *err = NULL;
 481         bt_register_profile_info_t info = {0};
 482         int result = BLUETOOTH_ERROR_NONE;
 483         char dev_address[BT_ADDRESS_STRING_SIZE];
 484         const char *path;
 485
 486         BT_DBG("+");
 487
 488         ret_if(user_data == NULL);
 489
 490         cb_data = user_data;
 491
 492         path = g_dbus_proxy_get_object_path(proxy);
 493
 494         _bt_convert_device_path_to_address(path, dev_address);
 495         BT_DBG("Device Adress [%s]", dev_address);
 496         g_dbus_proxy_call_finish(proxy, res, &err);
 497         if (proxy)
 498                 g_object_unref(proxy);
 499
 500         if (err != NULL) {
 501                 g_dbus_error_strip_remote_error(err);
 502                 BT_ERR("Error occured in Proxy call [%s]\n", err->message);
 503                 if (!strcmp("Operation canceled", err->message)) {
 504                         result = BLUETOOTH_ERROR_CANCEL_BY_USER;
 505                 } else if (!strcmp("In Progress", err->message)) {
 506                         result = BLUETOOTH_ERROR_IN_PROGRESS;
 507                 } else if (!strcmp("Host is down", err->message)) {
 508                         result = BLUETOOTH_ERROR_HOST_DOWN;
 509                 } else if (!strcmp(BT_TIMEOUT_MESSAGE, err->message)) {
 510                         result = BLUETOOTH_ERROR_SERVICE_SEARCH_ERROR;
 511                         ret = _bt_cancel_discovers(dev_address);
 512                         if (ret != BLUETOOTH_ERROR_NONE)
 513                                 BT_ERR("Error: While CancelDiscovery");
 514                 } else {
 515                         result = BLUETOOTH_ERROR_CONNECTION_ERROR;
 516                 }
 517                 __rfcomm_client_connected_cb(cb_data, dev_address, result);
 518                 goto done;
 519         } else {
 520                 BT_INFO("Services are Updated checking required uuid is there");
 521                 /* Check here for uuid present */
 522                 ret = _bt_discover_service_uuids(dev_address, (char *)cb_data->uuid);
 523                 if (ret == BLUETOOTH_ERROR_NONE) {
 524                         info.uuid = (char *)cb_data->uuid;
 525                         info.obj_path = cb_data->obj_path;
 526                         info.role = "client";
 527
 528                         ret = _bt_register_profile(&info, FALSE);
 529                         if (ret < 0)
 530                                 BT_DBG("Error: register profile");
 531                         ret = _bt_connect_profile(dev_address, cb_data->uuid,
 532                                                 __bt_connect_response_cb, cb_data);
 533
 534                         if (ret != BLUETOOTH_ERROR_NONE) {
 535                                 BT_ERR("ConnectProfile failed");
 536                                 result = BLUETOOTH_ERROR_CONNECTION_ERROR;
 537                                 __rfcomm_client_connected_cb(cb_data, dev_address, result);
 538                                 goto done;
 539                         }
 540                 } else {
 541                         BT_ERR("remote uuid not found");
 542                         result = BLUETOOTH_ERROR_SERVICE_NOT_FOUND;
 543                         __rfcomm_client_connected_cb(cb_data, dev_address, result);
 544                 }
 545         }
 546 done:
 547         if (err)
 548                 g_clear_error(&err);
 549 }
 550
 551 BT_EXPORT_API int bluetooth_rfcomm_connect(
 552                 const bluetooth_device_address_t *remote_bt_address,
 553                 const char *remote_uuid)
 554 {
 555
 556 #ifdef RFCOMM_DIRECT
 557         rfcomm_cb_data_t *cb_data = NULL;
 558         rfcomm_conn_info_t *conn = NULL;
 559 #else
 560         int result;
 561         int connect_type;
 562         bt_user_info_t *user_info;
 563         char uuid[BLUETOOTH_UUID_STRING_MAX];
 564 #endif
 565         BT_CHECK_PARAMETER(remote_bt_address, return);
 566         BT_CHECK_PARAMETER(remote_uuid, return);
 567         BT_CHECK_ENABLED(return);
 568
 569 #ifdef RFCOMM_DIRECT
 570         BT_INFO_C("<<<<<<<<< RFCOMM Connect request from app >>>>>>>>>>>");
 571         int ret;
 572         int id, object_id;
 573         char *path;
 574
 575         if (_bt_check_privilege(BT_BLUEZ_SERVICE, BT_RFCOMM_CLIENT_CONNECT)
 576              == BLUETOOTH_ERROR_PERMISSION_DEINED) {
 577                 BT_ERR("Don't have a privilege to use this API");
 578                 return BLUETOOTH_ERROR_PERMISSION_DEINED;
 579         }
 580
 581         id = __rfcomm_assign_id();
 582         if (id < 0)
 583                 return BLUETOOTH_ERROR_INTERNAL;
 584
 585         cb_data = __find_rfcomm_info_from_uuid(remote_uuid);
 586         if (!cb_data) {
 587                 path = g_strdup_printf("/org/socket/client/%d/%d", getpid(), id);
 588
 589                 object_id = _bt_register_new_conn(path, new_connection);
 590                 if (object_id < 0) {
 591                         __rfcomm_delete_id(id);
 592                         return BLUETOOTH_ERROR_INTERNAL;
 593                 }
 594
 595                 cb_data = g_new0(rfcomm_cb_data_t, 1);
 596                 g_strlcpy(cb_data->uuid, remote_uuid, BLUETOOTH_UUID_STRING_MAX);
 597                 cb_data->obj_path = path;
 598                 cb_data->object_id = object_id;
 599                 cb_data->id = id;
 600         }
 601         conn = g_new0(rfcomm_conn_info_t, 1);
 602         conn->fd = -1;
 603         _bt_convert_addr_type_to_string(conn->bt_addr,
 604                                 (unsigned char *)remote_bt_address->addr);
 605
 606         BT_DBG("Connecting to %s uuid %s", conn->bt_addr, remote_uuid);
 607         cb_data->rfcomm_conns = g_slist_append(cb_data->rfcomm_conns, conn);
 608         ret = _bt_discover_services(conn->bt_addr, (char *)remote_uuid,
 609                                 __bt_discover_service_response_cb, cb_data);
 610         if (ret != BLUETOOTH_ERROR_NONE) {
 611                 BT_ERR("Error returned while service discovery");
 612                 __rfcomm_remove_conn_info_t(cb_data, conn->bt_addr);
 613                 if (cb_data->rfcomm_conns == NULL)
 614                         rfcomm_cb_data_remove(cb_data);
 615                 return BLUETOOTH_ERROR_INTERNAL;
 616         }
 617         if (g_slist_find(rfcomm_clients, cb_data) == NULL) {
 618                 BT_INFO("Adding callback information to rfcomm_clients");
 619                 rfcomm_clients = g_slist_append(rfcomm_clients, cb_data);
 620         } else
 621                 BT_INFO("Callback information is already added");
 622
 623         return BLUETOOTH_ERROR_NONE;
 624 #else
 625         user_info = _bt_get_user_data(BT_COMMON);
 626         retv_if(user_info->cb == NULL, BLUETOOTH_ERROR_INTERNAL);
 627
 628         /* connect_type:  BT_RFCOMM_UUID / BT_RFCOMM_CHANNEL*/
 629         /* In now, we only support to connecty using UUID */
 630         connect_type = BT_RFCOMM_UUID;
 631
 632         if (_bt_check_privilege(BT_BLUEZ_SERVICE, BT_RFCOMM_CLIENT_CONNECT)
 633              == BLUETOOTH_ERROR_PERMISSION_DEINED) {
 634                 BT_ERR("Don't have a privilege to use this API");
 635                 return BLUETOOTH_ERROR_PERMISSION_DEINED;
 636         }
 637
 638         BT_INIT_PARAMS();
 639         BT_ALLOC_PARAMS(in_param1, in_param2, in_param3, in_param4, out_param);
 640
 641         g_array_append_vals(in_param1, remote_bt_address,
 642                                 sizeof(bluetooth_device_address_t));
 643
 644         g_strlcpy(uuid, remote_uuid, sizeof(uuid));
 645         g_array_append_vals(in_param2, uuid, BLUETOOTH_UUID_STRING_MAX);
 646
 647         g_array_append_vals(in_param3, &connect_type, sizeof(int));
 648
 649         result = _bt_send_request_async(BT_BLUEZ_SERVICE,
 650                                 BT_RFCOMM_CLIENT_CONNECT,
 651                                 in_param1, in_param2,
 652                                 in_param3, in_param4,
 653                                 user_info->cb, user_info->user_data);
 654
 655         BT_DBG("result: %x", result);
 656
 657         BT_FREE_PARAMS(in_param1, in_param2, in_param3, in_param4, out_param);
 658
 659         return result;
 660 #endif
 661 }
 662
 663 BT_EXPORT_API int bluetooth_rfcomm_client_is_connected(const bluetooth_device_address_t *device_address, gboolean *connected)
 664 {
 665         GSList *l;
 666         GSList *conn_list = NULL;
 667         rfcomm_cb_data_t *client_info;
 668         rfcomm_conn_info_t *conn_info;
 669         char address[BT_ADDRESS_STRING_SIZE] = { 0 };
 670
 671         BT_CHECK_PARAMETER(device_address, return);
 672         BT_CHECK_PARAMETER(connected, return);
 673
 674         _bt_convert_addr_type_to_string(address, (unsigned char *)device_address->addr);
 675         *connected = FALSE;
 676
 677         for (l = rfcomm_clients; l != NULL; l = l->next) {
 678                 client_info = l->data;
 679                 if (client_info == NULL)
 680                         continue;
 681                 for(conn_list = client_info->rfcomm_conns;
 682                         conn_list != NULL; conn_list = conn_list->next) {
 683                         conn_info = conn_list->data;
 684                         if(conn_info == NULL)
 685                                 continue;
 686
 687                         if (g_strcmp0(address, conn_info->bt_addr) == 0) {
 688                                 *connected = TRUE;
 689                                 return BLUETOOTH_ERROR_NONE;
 690                         }
 691                 }
 692         }
 693
 694         return BLUETOOTH_ERROR_NONE;
 695 }
 696
 697 BT_EXPORT_API gboolean bluetooth_rfcomm_is_client_connected(void)
 698 {
 699         int result;
 700         int connected = FALSE;
 701
 702         BT_CHECK_ENABLED(return);
 703
 704         BT_INIT_PARAMS();
 705         BT_ALLOC_PARAMS(in_param1, in_param2, in_param3, in_param4, out_param);
 706
 707         result = _bt_send_request(BT_BLUEZ_SERVICE,
 708                         BT_RFCOMM_CLIENT_IS_CONNECTED,
 709                         in_param1, in_param2, in_param3,
 710                         in_param4, &out_param);
 711
 712         BT_DBG("result: %x", result);
 713
 714         if (result == BLUETOOTH_ERROR_NONE) {
 715                 connected = g_array_index(out_param,
 716                                 int, 0);
 717         } else {
 718                 BT_ERR("Fail to send request");
 719         }
 720
 721         BT_FREE_PARAMS(in_param1, in_param2, in_param3, in_param4, out_param);
 722
 723         return connected;
 724 }
 725
 726 BT_EXPORT_API int bluetooth_rfcomm_disconnect(int socket_fd)
 727 {
 728 #ifdef RFCOMM_DIRECT
 729         rfcomm_cb_data_t *info;
 730         rfcomm_conn_info_t *conn_info;
 731         BT_INFO_C("<<<<<<<<< RFCOMM Disconnect request from app >>>>>>>>");
 732         BT_CHECK_ENABLED(return);
 733
 734         if (_bt_check_privilege(BT_BLUEZ_SERVICE, BT_RFCOMM_SOCKET_DISCONNECT)
 735              == BLUETOOTH_ERROR_PERMISSION_DEINED) {
 736                 BT_ERR("Don't have a privilege to use this API");
 737                 return BLUETOOTH_ERROR_PERMISSION_DEINED;
 738         }
 739
 740         if (socket_fd < 0) {
 741                 BT_ERR("Invalid FD");
 742                 return BLUETOOTH_ERROR_INVALID_PARAM;
 743         }
 744         BT_DBG("FDD %d", socket_fd);
 745
 746         info = __find_rfcomm_info_with_fd(socket_fd);
 747         if (info == NULL) {
 748                 BT_DBG("Could not find in client, so check in server");
 749                 return bluetooth_rfcomm_server_disconnect(socket_fd);
 750         }
 751         conn_info = __get_conn_info_from_fd(info, socket_fd);
 752         if (conn_info == NULL) {
 753                 BT_ERR("FATAL Error");
 754                 return BLUETOOTH_ERROR_INTERNAL;
 755         }
 756         if (conn_info->watch_id <= 0) {
 757                 BT_ERR("Invalid state");
 758                 return BLUETOOTH_ERROR_NOT_CONNECTED;
 759         }
 760         conn_info->disconnected = TRUE;
 761         close(socket_fd);
 762         BT_INFO("conn_info %s", conn_info->bt_addr);
 763         _bt_disconnect_profile(conn_info->bt_addr, info->uuid, NULL,NULL);
 764         if (info->idle_id == 0)
 765                 info->idle_id = g_idle_add(__rfcomm_client_disconnect, info);
 766
 767         return BLUETOOTH_ERROR_NONE;
 768 #else
 769         int result;
 770         int service_function;
 771
 772         BT_CHECK_ENABLED(return);
 773
 774         BT_INIT_PARAMS();
 775         BT_ALLOC_PARAMS(in_param1, in_param2, in_param3, in_param4, out_param);
 776
 777         /* Support the OSP */
 778         if (socket_fd == -1) {
 779                 /* Cancel connect */
 780                 service_function = BT_RFCOMM_CLIENT_CANCEL_CONNECT;
 781         } else {
 782                 g_array_append_vals(in_param1, &socket_fd, sizeof(int));
 783                 service_function = BT_RFCOMM_SOCKET_DISCONNECT;
 784         }
 785
 786         result = _bt_send_request(BT_BLUEZ_SERVICE, service_function,
 787                 in_param1, in_param2, in_param3, in_param4, &out_param);
 788
 789         BT_DBG("result: %x", result);
 790
 791         BT_FREE_PARAMS(in_param1, in_param2, in_param3, in_param4, out_param);
 792
 793         return result;
 794 #endif
 795 }
 796
 797 BT_EXPORT_API int bluetooth_rfcomm_write(int fd, const char *buf, int length)
 798 {
 799 #ifdef RFCOMM_DIRECT
 800         int written;
 801 #else
 802         char *buffer;
 803 #endif
 804         int result;
 805
 806         BT_CHECK_PARAMETER(buf, return);
 807         if (fd < 0) {
 808                 BT_ERR("Invalid FD");
 809                 return BLUETOOTH_ERROR_INVALID_PARAM;
 810         }
 811
 812         BT_DBG("FD : %d", fd);
 813
 814 #ifndef RFCOMM_DIRECT
 815         BT_CHECK_ENABLED(return);
 816 #endif
 817         retv_if(length <= 0, BLUETOOTH_ERROR_INVALID_PARAM);
 818
 819 #ifdef RFCOMM_DIRECT
 820         switch (privilege_token) {
 821         case 0:
 822                 result = _bt_check_privilege(BT_BLUEZ_SERVICE, BT_RFCOMM_SOCKET_WRITE);
 823
 824                 if (result == BLUETOOTH_ERROR_NONE) {
 825                         privilege_token = 1; /* Have a permission */
 826                 } else if (result == BLUETOOTH_ERROR_PERMISSION_DEINED) {
 827                         BT_ERR("Don't have a privilege to use this API");
 828                         privilege_token = -1; /* Don't have a permission */
 829                         return BLUETOOTH_ERROR_PERMISSION_DEINED;
 830                 } else {
 831                         /* Just break - It is not related with permission error */
 832                 }
 833                 break;
 834         case 1:
 835                 /* Already have a privilege */
 836                 break;
 837         case -1:
 838                 return BLUETOOTH_ERROR_PERMISSION_DEINED;
 839         default:
 840                 /* Invalid privilge token value */
 841                 return BLUETOOTH_ERROR_INTERNAL;
 842         }
 843
 844         written = write(fd, buf, length);
 845         /*BT_DBG("Length %d, written = %d, balance(%d)",
 846                          length, written, length - written); */
 847         return written;
 848 #else
 849         BT_INIT_PARAMS();
 850         BT_ALLOC_PARAMS(in_param1, in_param2, in_param3, in_param4, out_param);
 851
 852         buffer = g_malloc0(length + 1);
 853
 854         memcpy(buffer, buf, length);
 855
 856         g_array_append_vals(in_param1, &fd, sizeof(int));
 857         g_array_append_vals(in_param2, &length, sizeof(int));
 858         g_array_append_vals(in_param3, buffer, length);
 859
 860         result = _bt_send_request(BT_BLUEZ_SERVICE, BT_RFCOMM_SOCKET_WRITE,
 861                 in_param1, in_param2, in_param3, in_param4, &out_param);
 862
 863         BT_DBG("result: %x", result);
 864
 865         BT_FREE_PARAMS(in_param1, in_param2, in_param3, in_param4, out_param);
 866
 867         g_free(buffer);
 868
 869         return result;
 870 #endif
 871 }
 872