bt-api/bt-gatt-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 <gio/gio.h>
  19 #include <glib.h>
  20 #include <glib/gprintf.h>
  21 #include <stdlib.h>
  22 #include <unistd.h>
  23 #include <stdint.h>
  24
  25 #include "bt-common.h"
  26 #include "bt-internal-types.h"
  27 #include "bt-request-sender.h"
  28
  29 #define GATT_SERV_INTERFACE             "org.bluez.GattService1"
  30 #define GATT_CHAR_INTERFACE             "org.bluez.GattCharacteristic1"
  31 #define GATT_DESC_INTERFACE             "org.bluez.GattDescriptor1"
  32
  33 #define GATT_USER_DESC_UUID              "00002901-0000-1000-8000-00805f9b34fb"
  34 #define GATT_CHAR_CLIENT_CONF           "00002902-0000-1000-8000-00805f9b34fb"
  35 #define GATT_CHAR_SERVER_CONF            "00002903-0000-1000-8000-00805f9b34fb"
  36 #define GATT_CHAR_FORMAT                "00002904-0000-1000-8000-00805f9b34fb"
  37
  38 typedef enum {
  39         TYPE_NONE,
  40         USER_DESC,
  41         CLIENT_CONF,
  42         SERVER_CONF,
  43         CHAR_FORMAT
  44 }char_descriptor_type_t;
  45
  46 BT_EXPORT_API int bluetooth_gatt_free_service_property(bt_gatt_service_property_t *svc_pty)
  47 {
  48         BT_DBG("+");
  49
  50         BT_CHECK_PARAMETER(svc_pty, return);
  51
  52         g_free(svc_pty->uuid);
  53         g_free(svc_pty->handle);
  54         g_strfreev(svc_pty->include_handles.handle);
  55         g_strfreev(svc_pty->char_handle.handle);
  56
  57         memset(svc_pty, 0, sizeof(bt_gatt_service_property_t));
  58
  59         BT_DBG("-");
  60         return BLUETOOTH_ERROR_NONE;
  61 }
  62
  63 BT_EXPORT_API int bluetooth_gatt_free_char_property(bt_gatt_char_property_t *char_pty)
  64 {
  65         BT_DBG("+");
  66
  67         BT_CHECK_PARAMETER(char_pty, return);
  68
  69         g_free(char_pty->uuid);
  70         g_free(char_pty->name);
  71         g_free(char_pty->description);
  72         g_free(char_pty->val);
  73         g_free(char_pty->handle);
  74         g_strfreev(char_pty->char_desc_handle.handle);
  75
  76         memset(char_pty, 0, sizeof(bt_gatt_char_property_t));
  77
  78         BT_DBG("-");
  79         return BLUETOOTH_ERROR_NONE;
  80 }
  81
  82 BT_EXPORT_API int bluetooth_gatt_free_desc_property(bt_gatt_char_descriptor_property_t *desc_pty)
  83 {
  84         BT_DBG("+");
  85
  86         BT_CHECK_PARAMETER(desc_pty, return);
  87
  88         g_free(desc_pty->uuid);
  89         g_free(desc_pty->val);
  90         g_free(desc_pty->handle);
  91
  92         memset(desc_pty, 0, sizeof(bt_gatt_char_descriptor_property_t));
  93
  94         BT_DBG("-");
  95         return BLUETOOTH_ERROR_NONE;
  96 }
  97
  98 static char **__get_string_array_from_gptr_array(GPtrArray *gp)
  99 {
 100         gchar *gp_path = NULL;
 101         char **path = NULL;
 102         int i;
 103
 104         if (gp->len == 0)
 105                 return NULL;
 106
 107         path = g_malloc0((gp->len + 1) * sizeof(char *));
 108
 109         /* Fix : NULL_RETURNS */
 110         if (path == NULL)
 111                 return NULL;
 112
 113         for (i = 0; i < gp->len; i++) {
 114                 gp_path = g_ptr_array_index(gp, i);
 115                 path[i] = g_strdup(gp_path);
 116                 BT_DBG("path[%d] : [%s]", i, path[i]);
 117         }
 118
 119         return path;
 120 }
 121
 122 BT_EXPORT_API int bluetooth_gatt_get_service_property(const char *service_handle,
 123                                                 bt_gatt_service_property_t *service)
 124 {
 125         GDBusProxy *properties_proxy = NULL;
 126         GError *error = NULL;
 127         GVariant *result = NULL;
 128         GDBusConnection *g_conn;
 129         gsize len;
 130         char *char_handle = NULL;
 131         GPtrArray *gp_array  = NULL ;
 132         GVariantIter *property_iter, *char_iter;
 133         const gchar *key;
 134         GVariant *value;
 135
 136         BT_CHECK_PARAMETER(service_handle, return);
 137         BT_CHECK_PARAMETER(service, return);
 138         BT_CHECK_ENABLED_ANY(return);
 139
 140         g_conn = _bt_gdbus_get_system_gconn();
 141         retv_if(g_conn == NULL, BLUETOOTH_ERROR_INTERNAL);
 142
 143         properties_proxy = g_dbus_proxy_new_sync(g_conn,
 144                         G_DBUS_PROXY_FLAGS_NONE, NULL,
 145                         BT_BLUEZ_NAME,
 146                         service_handle,
 147                         BT_PROPERTIES_INTERFACE,
 148                         NULL, &error);
 149
 150         retv_if(properties_proxy == NULL, BLUETOOTH_ERROR_INTERNAL);
 151
 152         result = g_dbus_proxy_call_sync(properties_proxy,
 153                                 "GetAll",
 154                                 g_variant_new("(s)", GATT_SERV_INTERFACE),
 155                                 G_DBUS_CALL_FLAGS_NONE,
 156                                 -1,
 157                                 NULL,
 158                                 &error);
 159
 160         if (!result) {
 161                 if (error != NULL) {
 162                         BT_ERR("Fail to get properties (Error: %s)", error->message);
 163                         g_clear_error(&error);
 164                 } else
 165                         BT_ERR("Fail to get properties");
 166                 g_object_unref(properties_proxy);
 167                 return BLUETOOTH_ERROR_INTERNAL;
 168         }
 169
 170         g_variant_get(result, "(a{sv})", &property_iter);
 171
 172         memset(service, 0, sizeof(bt_gatt_service_property_t));
 173
 174         while (g_variant_iter_loop(property_iter, "{sv}", &key, &value)) {
 175                 if (!g_strcmp0(key,"UUID")) {
 176                         service->uuid = g_variant_dup_string(value,&len);
 177
 178                 } else if(!g_strcmp0(key, "Primary")) {
 179                         service->primary = g_variant_get_boolean(value);
 180
 181                 } else if (!g_strcmp0(key, "Includes")) {
 182                         g_variant_get(value, "ao", &char_iter);
 183                         gp_array = g_ptr_array_new();
 184                         while (g_variant_iter_loop(char_iter, "&o", &char_handle)) {
 185                                 g_ptr_array_add(gp_array, (gpointer)char_handle);
 186                         }
 187                         if (gp_array->len != 0) {
 188                                 service->include_handles.count = gp_array->len;
 189                                 service->include_handles.handle =
 190                                                 __get_string_array_from_gptr_array(gp_array);
 191                         }
 192                         g_ptr_array_free(gp_array, TRUE);
 193                 } else if (!g_strcmp0(key, "Characteristics")) {
 194                         g_variant_get(value, "ao", &char_iter);
 195                         gp_array = g_ptr_array_new();
 196                         while (g_variant_iter_loop(char_iter, "&o", &char_handle)) {
 197                                 g_ptr_array_add(gp_array, (gpointer)char_handle);
 198                         }
 199                         if (gp_array->len != 0) {
 200                                 service->char_handle.count = gp_array->len;
 201                                 service->char_handle.handle =
 202                                                 __get_string_array_from_gptr_array(gp_array);
 203                         }
 204                         g_ptr_array_free(gp_array, TRUE);
 205                 }
 206         }
 207
 208         service->handle = g_strdup(service_handle);
 209
 210         g_variant_iter_free(property_iter);
 211         g_variant_unref(result);
 212         g_object_unref(properties_proxy);
 213
 214         return BLUETOOTH_ERROR_NONE;
 215 }
 216
 217 BT_EXPORT_API int bluetooth_gatt_get_primary_services(
 218                 const bluetooth_device_address_t *address,
 219                 bt_gatt_handle_info_t *prim_svc)
 220 {
 221         GVariant *result = NULL;
 222         GVariantIter *iter;
 223         GVariantIter *svc_iter;
 224         GVariantIter *interface_iter;
 225         char *object_path = NULL;
 226         char *interface_str = NULL;
 227         const gchar *key = NULL;
 228         GVariant *value = NULL;
 229         GPtrArray *gp_array  = NULL;
 230         char device_address[BT_ADDRESS_STRING_SIZE] = { 0 };
 231         char temp_address[BT_ADDRESS_STRING_SIZE] = { 0 };
 232         int ret = BLUETOOTH_ERROR_INTERNAL;
 233
 234         BT_INFO("+");
 235         BT_CHECK_PARAMETER(address, return);
 236         BT_CHECK_PARAMETER(prim_svc, return);
 237         BT_CHECK_ENABLED_ANY(return);
 238
 239         result = _bt_get_managed_objects();
 240         if (result == NULL)
 241                 return ret;
 242
 243         _bt_convert_addr_type_to_string(device_address,
 244                         (unsigned char *)address->addr);
 245
 246         gp_array = g_ptr_array_new();
 247         g_variant_get(result, "(a{oa{sa{sv}}})", &iter);
 248
 249         while (g_variant_iter_loop(iter, "{&oa{sa{sv}}}", &object_path,
 250                         &interface_iter)) {
 251                 if (object_path == NULL)
 252                         continue;
 253
 254                 _bt_convert_device_path_to_address(object_path, temp_address);
 255
 256                 if (g_strcmp0(temp_address, device_address) != 0)
 257                         continue;
 258
 259                 while (g_variant_iter_loop(interface_iter, "{sa{sv}}",
 260                                 &interface_str, &svc_iter)) {
 261                         if (g_strcmp0(interface_str, GATT_SERV_INTERFACE) != 0)
 262                                 continue;
 263
 264                         BT_DBG("Object Path: %s", object_path);
 265                         while (g_variant_iter_loop(svc_iter, "{sv}", &key, &value)) {
 266                                 if (g_strcmp0(key, "Primary") == 0) {
 267                                         if (g_variant_get_boolean(value))
 268                                                 g_ptr_array_add(gp_array, (gpointer)object_path);
 269                                 }
 270                         }
 271                 }
 272         }
 273
 274         if (gp_array->len == 0) {
 275                 BT_ERR("gp_array is NULL");
 276                 ret = BLUETOOTH_ERROR_NOT_FOUND;
 277         } else {
 278                 ret = BLUETOOTH_ERROR_NONE;
 279                 prim_svc->count = gp_array->len;
 280                 prim_svc->handle = __get_string_array_from_gptr_array(gp_array);
 281         }
 282
 283         g_ptr_array_free(gp_array, TRUE);
 284         g_variant_iter_free(iter);
 285         g_variant_unref(result);
 286         BT_DBG("-");
 287         return ret;
 288 }
 289
 290 BT_EXPORT_API int bluetooth_gatt_get_service_from_uuid(bluetooth_device_address_t *address,
 291                         const char *service_uuid,
 292                         bt_gatt_service_property_t *service)
 293 {
 294         GVariant *result = NULL;
 295         GVariantIter *iter;
 296         GVariantIter *svc_iter;
 297         GVariantIter *interface_iter;
 298         char *object_path = NULL;
 299         char *interface_str = NULL;
 300         char device_address[BT_ADDRESS_STRING_SIZE] = { 0 };
 301         char temp_address[BT_ADDRESS_STRING_SIZE] = { 0 };
 302         int ret = BLUETOOTH_ERROR_INTERNAL;
 303
 304         BT_CHECK_PARAMETER(address, return);
 305         BT_CHECK_PARAMETER(service_uuid, return);
 306         BT_CHECK_PARAMETER(service, return);
 307         BT_CHECK_ENABLED_ANY(return);
 308
 309         result = _bt_get_managed_objects();
 310         if (result == NULL)
 311                 return ret;
 312
 313         _bt_convert_addr_type_to_string(device_address,
 314                                 (unsigned char *)address->addr);
 315
 316         g_variant_get(result, "(a{oa{sa{sv}}})", &iter);
 317
 318         while (g_variant_iter_loop(iter, "{oa{sa{sv}}}", &object_path,
 319                         &interface_iter)) {
 320                 if (object_path == NULL)
 321                         continue;
 322
 323                 _bt_convert_device_path_to_address(object_path,
 324                                 temp_address);
 325
 326                 if (g_strcmp0(temp_address, device_address) != 0)
 327                         continue;
 328
 329                 while (g_variant_iter_loop(interface_iter, "{sa{sv}}",
 330                                 &interface_str, &svc_iter)) {
 331                         if (g_strcmp0(interface_str, GATT_SERV_INTERFACE) != 0)
 332                                 continue;
 333
 334                         BT_DBG("Object Path: %s", object_path);
 335                         ret = bluetooth_gatt_get_service_property(object_path,
 336                                         service);
 337
 338                         if (ret != BLUETOOTH_ERROR_NONE) {
 339                                 BT_ERR("Get service property failed(0x%08x)", ret);
 340                         } else {
 341                                 if (service->primary == TRUE &&
 342                                                 g_strstr_len(service->uuid, -1,
 343                                                                 service_uuid)) {
 344                                         ret = BLUETOOTH_ERROR_NONE;
 345                                         goto done;
 346                                 }
 347                         }
 348                         bluetooth_gatt_free_service_property(service);
 349                 }
 350         }
 351
 352 done:
 353         g_variant_iter_free(iter);
 354         g_variant_unref(result);
 355
 356         return ret;
 357 }
 358
 359 static void __bluetooth_internal_get_char_cb(GDBusProxy *proxy,
 360                 GAsyncResult *res, gpointer user_data)
 361 {
 362         GVariant *value;
 363         GVariant *char_value;
 364         GVariantIter *char_iter;
 365         GPtrArray *gp_array = NULL;
 366         bt_gatt_discovered_char_t svc_char = { 0, };
 367         char *char_handle;
 368         GError *error = NULL;
 369         bt_user_info_t *user_info;
 370
 371         BT_DBG("+");
 372
 373         user_info = _bt_get_user_data(BT_COMMON);
 374         svc_char.service_handle = user_data;
 375
 376         value = g_dbus_proxy_call_finish(proxy, res, &error);
 377
 378         if (value == NULL) {
 379                 if (error != NULL) {
 380                         BT_ERR("Get service characteristics failed\n errCode[%x],"
 381                                         "message[%s]\n", error->code, error->message);
 382                         g_clear_error(&error);
 383                 } else {
 384                         BT_ERR("Get service characteristics failed\n");
 385                 }
 386                 if (user_info) {
 387                         _bt_common_event_cb(BLUETOOTH_EVENT_GATT_SVC_CHAR_DISCOVERED,
 388                                 BLUETOOTH_ERROR_INTERNAL, NULL,
 389                                 user_info->cb, user_info->user_data);
 390                 }
 391                 g_free(svc_char.service_handle);
 392                 g_object_unref(proxy);
 393                 return;
 394         }
 395
 396         g_variant_get(value, "(v)", &char_value);
 397         g_variant_get(char_value, "ao", &char_iter);
 398
 399         gp_array = g_ptr_array_new();
 400         while(g_variant_iter_loop(char_iter, "&o",  &char_handle));
 401                 g_ptr_array_add(gp_array, (gpointer)char_handle);
 402
 403         if (gp_array->len != 0) {
 404                 svc_char.handle_info.count = gp_array->len;
 405                 svc_char.handle_info.handle =
 406                         __get_string_array_from_gptr_array(gp_array);
 407         }
 408         g_ptr_array_free(gp_array, TRUE);
 409
 410         if (user_info) {
 411                 _bt_common_event_cb(BLUETOOTH_EVENT_GATT_SVC_CHAR_DISCOVERED,
 412                         BLUETOOTH_ERROR_NONE, &svc_char,
 413                         user_info->cb, user_info->user_data);
 414         }
 415
 416         g_strfreev(svc_char.handle_info.handle);
 417         g_free(svc_char.service_handle);
 418         g_variant_iter_free(char_iter);
 419         g_object_unref(proxy);
 420 }
 421
 422 BT_EXPORT_API int bluetooth_gatt_discover_service_characteristics(
 423                         const char *service_handle)
 424 {
 425         GDBusProxy *properties_proxy = NULL;
 426         GDBusConnection *g_conn;
 427         GError *error = NULL;
 428         char *handle;
 429
 430         BT_DBG("+");
 431
 432         BT_CHECK_PARAMETER(service_handle, return);
 433         BT_CHECK_ENABLED_ANY(return);
 434
 435         g_conn = _bt_gdbus_get_system_gconn();
 436         retv_if(g_conn == NULL, BLUETOOTH_ERROR_INTERNAL);
 437
 438         properties_proxy = g_dbus_proxy_new_sync(g_conn,
 439                         G_DBUS_PROXY_FLAGS_NONE, NULL,
 440                         BT_BLUEZ_NAME,
 441                         service_handle,
 442                         BT_PROPERTIES_INTERFACE,
 443                         NULL, &error);
 444
 445         retv_if(properties_proxy == NULL, BLUETOOTH_ERROR_INTERNAL);
 446
 447         handle = g_strdup(service_handle);
 448         g_dbus_proxy_call(properties_proxy,
 449                         "Get",
 450                         g_variant_new("(ss)",
 451                                 GATT_SERV_INTERFACE, "Characteristics"),
 452                         G_DBUS_CALL_FLAGS_NONE,
 453                         -1,
 454                         NULL,
 455                         (GAsyncReadyCallback)__bluetooth_internal_get_char_cb,
 456                         (gpointer)handle);
 457
 458         BT_DBG("-");
 459         return BLUETOOTH_ERROR_NONE;
 460 }
 461
 462
 463 static int __get_permission_flag(char *permission)
 464 {
 465         int ret = 0;
 466
 467         retv_if(permission == NULL, ret);
 468
 469         BT_DBG("permission = %s",permission);
 470
 471         if (!g_strcmp0(permission,"broadcast")) {
 472                 ret = BLUETOOTH_GATT_CHARACTERISTIC_PROPERTY_BROADCAST;
 473         } else if (!g_strcmp0(permission,"read")) {
 474                 ret = BLUETOOTH_GATT_CHARACTERISTIC_PROPERTY_READ;
 475         } else if (!g_strcmp0(permission,"write-without-response")) {
 476                 ret = BLUETOOTH_GATT_CHARACTERISTIC_PROPERTY_WRITE_NO_RESPONSE;
 477         } else if (!g_strcmp0(permission,"write")) {
 478                 ret = BLUETOOTH_GATT_CHARACTERISTIC_PROPERTY_WRITE;
 479         } else if (!g_strcmp0(permission,"notify")) {
 480                 ret = BLUETOOTH_GATT_CHARACTERISTIC_PROPERTY_NOTIFY;
 481         } else if (!g_strcmp0(permission,"indicate")) {
 482                 ret = BLUETOOTH_GATT_CHARACTERISTIC_PROPERTY_INDICATE;
 483         } else if (!g_strcmp0(permission,"authenticated-signed-writes")) {
 484                 ret = BLUETOOTH_GATT_CHARACTERISTIC_PROPERTY_SIGNED_WRITE;
 485         } else if (!g_strcmp0(permission,"reliable-write")) {
 486                 ret = BLUETOOTH_GATT_CHARACTERISTIC_PROPERTY_EXTENDED_PROPS;
 487         } else if (!g_strcmp0(permission,"writable-auxiliaries")) {
 488                 ret = BLUETOOTH_GATT_CHARACTERISTIC_PROPERTY_EXTENDED_PROPS;
 489         }
 490
 491         return ret;
 492 }
 493
 494 BT_EXPORT_API int bluetooth_gatt_get_characteristics_property(
 495                 const char *char_handle, bt_gatt_char_property_t *characteristic)
 496 {
 497         GDBusProxy *properties_proxy = NULL;
 498         GError *error = NULL;
 499         GVariant *value = NULL;
 500         GVariant *result = NULL;
 501         GByteArray *gb_array = NULL;
 502         GPtrArray *gp_array  = NULL ;
 503         GDBusConnection *g_conn;
 504         guint8 char_value;
 505         const gchar *key;
 506         gchar* permission;
 507         char *char_desc_handle = NULL;
 508         gsize len;
 509         GVariantIter *property_iter;
 510         GVariantIter *char_value_iter;
 511         GVariantIter *char_perm_iter;
 512         GVariantIter *char_desc_iter;
 513
 514         BT_DBG("+");
 515         BT_CHECK_PARAMETER(char_handle, return);
 516         BT_CHECK_PARAMETER(characteristic, return);
 517
 518         BT_CHECK_ENABLED_ANY(return);
 519
 520         g_conn = _bt_gdbus_get_system_gconn();
 521         retv_if(g_conn == NULL, BLUETOOTH_ERROR_INTERNAL);
 522
 523         properties_proxy = g_dbus_proxy_new_sync(g_conn,
 524                         G_DBUS_PROXY_FLAGS_NONE, NULL,
 525                         BT_BLUEZ_NAME,
 526                         char_handle,
 527                         BT_PROPERTIES_INTERFACE,
 528                         NULL, &error);
 529
 530         retv_if(properties_proxy == NULL, BLUETOOTH_ERROR_INTERNAL);
 531
 532         result = g_dbus_proxy_call_sync(properties_proxy,
 533                                 "GetAll",
 534                                         g_variant_new("(s)", GATT_CHAR_INTERFACE),
 535                                 G_DBUS_CALL_FLAGS_NONE,
 536                                 -1,
 537                                 NULL,
 538                                 &error);
 539
 540         if (!result) {
 541                 if (error != NULL) {
 542                         BT_ERR("Fail to get properties (Error: %s)", error->message);
 543                         g_clear_error(&error);
 544                 } else
 545                         BT_ERR("Fail to get properties");
 546                 g_object_unref(properties_proxy);
 547                 return BLUETOOTH_ERROR_INTERNAL;
 548         }
 549
 550         g_variant_get(result, "(a{sv})", &property_iter);
 551
 552         memset(characteristic, 0, sizeof(bt_gatt_char_property_t));
 553         characteristic->handle = g_strdup(char_handle);
 554
 555         while (g_variant_iter_loop(property_iter, "{sv}", &key, &value)) {
 556                 BT_DBG("property");
 557                 if (!g_strcmp0(key,"UUID")) {
 558                         characteristic->uuid = g_variant_dup_string(value,&len);
 559                         BT_DBG("UUID of the char = %s",characteristic->uuid);
 560                 } else if(!g_strcmp0(key, "Value")) {
 561                         gb_array = g_byte_array_new();
 562                         g_variant_get(value, "ay", &char_value_iter);
 563                         while(g_variant_iter_loop(char_value_iter, "y",  &char_value)) {
 564                                 BT_DBG("value of char = %d",char_value);
 565                                 g_byte_array_append(gb_array, &char_value, 1);
 566                         }
 567                         g_variant_iter_free(char_value_iter);
 568
 569                         if (gb_array->len != 0) {
 570                                 characteristic->val = g_malloc0(gb_array->len *
 571                                                                 sizeof(unsigned char));
 572                                 memcpy(characteristic->val, gb_array->data, gb_array->len);
 573                         }
 574                         characteristic->val_len = gb_array->len;
 575                         g_byte_array_free(gb_array, TRUE);
 576                 } else if(!g_strcmp0(key, "Flags")) {
 577                         g_variant_get(value, "as", &char_perm_iter);
 578                         characteristic->permission = 0x00;
 579                         while (g_variant_iter_loop(char_perm_iter, "s", &permission)) {
 580                                 BT_DBG("permission = %s",permission);
 581                                 characteristic->permission |= __get_permission_flag(permission);
 582                                 BT_DBG("permission check = %d",characteristic->permission);
 583                         }
 584                         g_variant_iter_free(char_perm_iter);
 585                 } else if (!g_strcmp0(key, "Descriptors")) {
 586                         g_variant_get(value, "ao", &char_desc_iter);
 587                         gp_array = g_ptr_array_new();
 588                         while (g_variant_iter_loop(char_desc_iter, "&o", &char_desc_handle)) {
 589                                 g_ptr_array_add(gp_array, (gpointer)char_desc_handle);
 590                         }
 591                         g_variant_iter_free(char_desc_iter);
 592                         if (gp_array->len != 0) {
 593                                 characteristic->char_desc_handle.count = gp_array->len;
 594                                 characteristic->char_desc_handle.handle =
 595                                                 __get_string_array_from_gptr_array(gp_array);
 596                         }
 597                         g_ptr_array_free(gp_array, TRUE);
 598                 }
 599         }
 600
 601         g_variant_iter_free(property_iter);
 602         g_variant_unref(result);
 603         g_object_unref(properties_proxy);
 604
 605         BT_DBG("-");
 606         return BLUETOOTH_ERROR_NONE;
 607 }
 608
 609 void bluetooth_gatt_get_char_from_uuid_cb(GDBusProxy *proxy,
 610                         GAsyncResult *res, gpointer user_data)
 611 {
 612         GVariant *value;
 613         GVariantIter *char_iter;
 614         int i, len;
 615         char *char_handle;
 616         GError *error = NULL;
 617         bt_user_info_t *user_info;
 618         int ret = BLUETOOTH_ERROR_INTERNAL;
 619         bt_gatt_char_property_t characteristic;
 620
 621         user_info = _bt_get_user_data(BT_COMMON);
 622
 623         value = g_dbus_proxy_call_finish(proxy, res, &error);
 624
 625         if (value == NULL) {
 626                 if (error != NULL) {
 627                         BT_ERR("Get service characteristics failed\n errCode[%x],"
 628                                         "message[%s]\n", error->code, error->message);
 629                         g_clear_error(&error);
 630                 } else {
 631                         BT_ERR("Get service characteristics failed\n");
 632                 }
 633                 if (user_info) {
 634                         _bt_common_event_cb(BLUETOOTH_EVENT_GATT_GET_CHAR_FROM_UUID,
 635                                 BLUETOOTH_ERROR_INTERNAL, NULL,
 636                                 user_info->cb, user_info->user_data);
 637                 }
 638                 g_object_unref(proxy);
 639                 g_free(user_data);
 640                 return;
 641         }
 642
 643         g_variant_get(value, "(ao)", &char_iter);
 644
 645         len = g_variant_get_size((GVariant *)char_iter);
 646
 647         for (i = 0; i < len; i++) {
 648                 g_variant_iter_loop(char_iter, "o",  &char_handle);
 649                 if (!char_handle)
 650                         continue;
 651                 ret = bluetooth_gatt_get_characteristics_property(char_handle,
 652                                 &characteristic);
 653
 654                 if (ret != BLUETOOTH_ERROR_NONE) {
 655                         BT_ERR("Get characteristic property failed(0x%08x)", ret);
 656                 } else {
 657                         if (g_strstr_len(characteristic.uuid, -1, user_data)) {
 658                                 ret = BLUETOOTH_ERROR_NONE;
 659                                 break;
 660                         }
 661                 }
 662                 bluetooth_gatt_free_char_property(&characteristic);
 663         }
 664
 665         if (user_info) {
 666                 _bt_common_event_cb(BLUETOOTH_EVENT_GATT_GET_CHAR_FROM_UUID, ret,
 667                                 &characteristic, user_info->cb, user_info->user_data);
 668         }
 669
 670         bluetooth_gatt_free_char_property(&characteristic);
 671         g_variant_iter_free(char_iter);
 672         g_free(user_data);
 673 }
 674
 675 BT_EXPORT_API int bluetooth_gatt_get_char_from_uuid(const char *service_handle,
 676                                                 const char *char_uuid)
 677 {
 678         GDBusProxy *properties_proxy = NULL;
 679         GDBusConnection *g_conn;
 680         GError *error = NULL;
 681         char *uuid;
 682
 683         BT_CHECK_PARAMETER(service_handle, return);
 684         BT_CHECK_PARAMETER(char_uuid, return);
 685         BT_CHECK_ENABLED_ANY(return);
 686
 687         g_conn = _bt_gdbus_get_system_gconn();
 688         retv_if(g_conn == NULL, BLUETOOTH_ERROR_INTERNAL);
 689
 690         properties_proxy = g_dbus_proxy_new_sync(g_conn,
 691                         G_DBUS_PROXY_FLAGS_NONE, NULL,
 692                         BT_BLUEZ_NAME,
 693                         service_handle,
 694                         BT_PROPERTIES_INTERFACE,
 695                         NULL, &error);
 696
 697         retv_if(properties_proxy == NULL, BLUETOOTH_ERROR_INTERNAL);
 698
 699         uuid = g_strdup(char_uuid);
 700         g_dbus_proxy_call(properties_proxy,
 701                         "Get",
 702                         g_variant_new("(ss)",
 703                                 GATT_SERV_INTERFACE, "Characteristics"),
 704                         G_DBUS_CALL_FLAGS_NONE,
 705                         -1,
 706                         NULL,
 707                         (GAsyncReadyCallback)bluetooth_gatt_get_char_from_uuid_cb,
 708                         (gpointer)uuid);
 709
 710         return BLUETOOTH_ERROR_NONE;
 711 }
 712
 713 BT_EXPORT_API int bluetooth_gatt_get_char_descriptor_property(
 714                 const char *descriptor_handle, bt_gatt_char_descriptor_property_t *descriptor)
 715 {
 716         GDBusProxy *properties_proxy = NULL;
 717         GError *error = NULL;
 718         GDBusConnection *g_conn;
 719         GVariant *result = NULL;
 720         GVariantIter *property_iter;
 721         const gchar *key;
 722         guint8 char_value;
 723         gsize len;
 724         GVariant *value = NULL;
 725         GByteArray *gb_array = NULL;
 726         GVariantIter *desc_value_iter;
 727
 728         BT_DBG("+");
 729         BT_CHECK_PARAMETER(descriptor_handle, return);
 730         BT_CHECK_PARAMETER(descriptor, return);
 731
 732         BT_CHECK_ENABLED_ANY(return);
 733
 734         g_conn = _bt_gdbus_get_system_gconn();
 735         retv_if(g_conn == NULL, BLUETOOTH_ERROR_INTERNAL);
 736
 737         properties_proxy = g_dbus_proxy_new_sync(g_conn,
 738                         G_DBUS_PROXY_FLAGS_NONE, NULL,
 739                         BT_BLUEZ_NAME,
 740                         descriptor_handle,
 741                         BT_PROPERTIES_INTERFACE,
 742                         NULL, &error);
 743
 744         retv_if(properties_proxy == NULL, BLUETOOTH_ERROR_INTERNAL);
 745
 746         result = g_dbus_proxy_call_sync(properties_proxy,
 747                                 "GetAll",
 748                                         g_variant_new("(s)", GATT_DESC_INTERFACE),
 749                                 G_DBUS_CALL_FLAGS_NONE,
 750                                 -1,
 751                                 NULL,
 752                                 &error);
 753
 754         if (!result) {
 755                 if (error != NULL) {
 756                         BT_ERR("Fail to get properties (Error: %s)", error->message);
 757                         g_clear_error(&error);
 758                 } else
 759                         BT_ERR("Fail to get properties");
 760                 g_object_unref(properties_proxy);
 761                 return BLUETOOTH_ERROR_INTERNAL;
 762         }
 763
 764         g_variant_get(result, "(a{sv})", &property_iter);
 765
 766         memset(descriptor, 0, sizeof(bt_gatt_char_descriptor_property_t));
 767         descriptor->handle = g_strdup(descriptor_handle);
 768
 769         while (g_variant_iter_loop(property_iter, "{sv}", &key, &value)) {
 770                 BT_DBG("property");
 771                 if (!g_strcmp0(key,"UUID")) {
 772                         descriptor->uuid = g_variant_dup_string(value,&len);
 773                         BT_DBG("UUID of the char_desc = %s",descriptor->uuid);
 774                 } else if(!g_strcmp0(key, "Value")) {
 775                         gb_array = g_byte_array_new();
 776                         g_variant_get(value, "ay", &desc_value_iter);
 777                         while(g_variant_iter_loop(desc_value_iter, "y",  &char_value)) {
 778                                 BT_DBG("value of descriptor = %d",char_value);
 779                                 g_byte_array_append(gb_array, &char_value, 1);
 780                         }
 781                         g_variant_iter_free(desc_value_iter);
 782                         if (gb_array->len != 0) {
 783                                 descriptor->val = g_malloc0(gb_array->len *
 784                                                                 sizeof(unsigned char));
 785                                 memcpy(descriptor->val, gb_array->data, gb_array->len);
 786                         }
 787                         descriptor->val_len = gb_array->len;
 788                         g_byte_array_free(gb_array, TRUE);
 789                 }
 790         }
 791
 792         g_variant_iter_free(property_iter);
 793         g_variant_unref(result);
 794         g_object_unref(properties_proxy);
 795
 796         BT_DBG("-");
 797         return BLUETOOTH_ERROR_NONE;
 798 }
 799
 800 static void __bluetooth_internal_read_cb(GObject *source_object,
 801                         GAsyncResult *res,
 802                         gpointer user_data)
 803 {
 804         GError *error = NULL;
 805         bt_user_info_t *user_info;
 806         bt_gatt_char_value_t char_value =  { 0, };
 807         GDBusConnection *system_gconn = NULL;
 808         GVariant *value;
 809         GByteArray *gp_byte_array = NULL;
 810         GVariantIter *iter;
 811         guint8 g_byte;
 812
 813         BT_DBG("+");
 814         user_info = _bt_get_user_data(BT_COMMON);
 815
 816         system_gconn = _bt_gdbus_get_system_gconn();
 817         value = g_dbus_connection_call_finish(system_gconn, res, &error);
 818
 819         if (error) {
 820                 BT_ERR("Error : %s \n", error->message);
 821                 g_clear_error(&error);
 822                 if (user_info) {
 823                         _bt_common_event_cb(BLUETOOTH_EVENT_GATT_READ_CHAR,
 824                                 BLUETOOTH_ERROR_INTERNAL, NULL,
 825                                 user_info->cb, user_info->user_data);
 826                 }
 827                 g_free(user_data);
 828                 return;
 829         }
 830
 831         char_value.char_handle = user_data;
 832         gp_byte_array = g_byte_array_new();
 833         g_variant_get(value, "(ay)", &iter);
 834
 835         while (g_variant_iter_loop(iter, "y", &g_byte)) {
 836                 g_byte_array_append(gp_byte_array, &g_byte, 1);
 837         }
 838
 839         if (gp_byte_array->len != 0) {
 840                 char_value.val_len = gp_byte_array->len;
 841                 char_value.char_value = gp_byte_array->data;
 842         }
 843
 844         if (user_info) {
 845                 _bt_common_event_cb(BLUETOOTH_EVENT_GATT_READ_CHAR,
 846                                 BLUETOOTH_ERROR_NONE, &char_value,
 847                                 user_info->cb, user_info->user_data);
 848         }
 849
 850         g_free(char_value.char_handle);
 851         g_byte_array_free(gp_byte_array, TRUE);
 852         g_variant_unref(value);
 853         g_variant_iter_free(iter);
 854
 855         BT_DBG("-");
 856 }
 857
 858 BT_EXPORT_API int bluetooth_gatt_read_characteristic_value(const char *characteristic)
 859 {
 860         GDBusConnection *conn;
 861         char *handle;
 862
 863         BT_CHECK_PARAMETER(characteristic, return);
 864         BT_CHECK_ENABLED_ANY(return);
 865
 866         conn = _bt_gdbus_get_system_gconn();
 867         retv_if(conn == NULL, BLUETOOTH_ERROR_INTERNAL);
 868
 869         handle = g_strdup(characteristic);
 870
 871         g_dbus_connection_call(conn,
 872                         BT_BLUEZ_NAME,
 873                         characteristic,
 874                         GATT_CHAR_INTERFACE,
 875                         "ReadValue",
 876                         NULL,
 877                         G_VARIANT_TYPE("(ay)"),
 878                         G_DBUS_CALL_FLAGS_NONE,
 879                         -1,
 880                         NULL,
 881                         (GAsyncReadyCallback)__bluetooth_internal_read_cb,
 882                         (gpointer)handle);
 883
 884         return BLUETOOTH_ERROR_NONE;
 885 }
 886
 887 BT_EXPORT_API int bluetooth_gatt_set_characteristics_value(
 888                 const char *char_handle, const guint8 *value, int length)
 889 {
 890         GVariant *val;
 891         GVariantBuilder *builder;
 892         GError *error = NULL;
 893         GDBusConnection *conn;
 894         int i = 0;
 895
 896         BT_DBG("+");
 897         BT_CHECK_PARAMETER(char_handle, return);
 898         BT_CHECK_PARAMETER(value, return);
 899         retv_if(length == 0, BLUETOOTH_ERROR_INVALID_PARAM);
 900         BT_CHECK_ENABLED_ANY(return);
 901
 902         conn = _bt_gdbus_get_system_gconn();
 903         retv_if(conn == NULL, BLUETOOTH_ERROR_INTERNAL);
 904
 905         builder = g_variant_builder_new(G_VARIANT_TYPE("ay"));
 906
 907         for (i = 0; i < length; i++) {
 908                 g_variant_builder_add(builder, "y", value[i]);
 909         }
 910
 911         val = g_variant_new("(ay)", builder);
 912
 913         g_dbus_connection_call_sync(conn,
 914                         BT_BLUEZ_NAME,
 915                         char_handle,
 916                         GATT_CHAR_INTERFACE,
 917                         "WriteValue",
 918                         val,
 919                         NULL,
 920                         G_DBUS_CALL_FLAGS_NONE,
 921                         -1, NULL, &error);
 922
 923         if (error) {
 924                 BT_ERR("Set value Failed: %s", error->message);
 925                 g_clear_error(&error);
 926                 g_variant_builder_unref(builder);
 927                 return BLUETOOTH_ERROR_INTERNAL;
 928         }
 929
 930         g_variant_builder_unref(builder);
 931
 932         BT_DBG("-");
 933         return BLUETOOTH_ERROR_NONE;
 934 }
 935
 936 static void __bluetooth_internal_write_cb(GObject *source_object,
 937                         GAsyncResult *res,
 938                         gpointer user_data)
 939 {
 940         BT_DBG("+");
 941         GError *error = NULL;
 942         bt_user_info_t *user_info;
 943         GDBusConnection *system_gconn = NULL;
 944         GVariant *value;
 945         int result = BLUETOOTH_ERROR_NONE;
 946
 947         user_info = _bt_get_user_data(BT_COMMON);
 948
 949         system_gconn = _bt_gdbus_get_system_gconn();
 950         value = g_dbus_connection_call_finish(system_gconn, res, &error);
 951
 952         if (error) {
 953                 BT_ERR("Error : %s \n", error->message);
 954                 g_clear_error(&error);
 955                 result = BLUETOOTH_ERROR_INTERNAL;
 956         }
 957         if (user_info) {
 958                 BT_DBG("result = %d", result);
 959                 _bt_common_event_cb(BLUETOOTH_EVENT_GATT_WRITE_CHAR,
 960                                 result, NULL,
 961                                 user_info->cb, user_info->user_data);
 962         }
 963
 964         if (value)
 965                 g_variant_unref(value);
 966         BT_DBG("-");
 967         return;
 968 }
 969
 970 BT_EXPORT_API int bluetooth_gatt_set_characteristics_value_by_type(
 971                 const char *char_handle, const guint8 *value, int length, guint8 write_type)
 972 {
 973         GVariant *val;
 974         GVariantBuilder *builder;
 975         GDBusConnection *conn;
 976         int i = 0;
 977         int ret = BLUETOOTH_ERROR_NONE;
 978
 979         BT_CHECK_PARAMETER(char_handle, return);
 980         BT_CHECK_PARAMETER(value, return);
 981         retv_if(length == 0, BLUETOOTH_ERROR_INVALID_PARAM);
 982         BT_CHECK_ENABLED_ANY(return);
 983
 984         conn = _bt_gdbus_get_system_gconn();
 985         retv_if(conn == NULL, BLUETOOTH_ERROR_INTERNAL);
 986
 987         builder = g_variant_builder_new(G_VARIANT_TYPE("ay"));
 988
 989         for (i = 0; i < length; i++) {
 990                 g_variant_builder_add(builder, "y", value[i]);
 991         }
 992
 993         val = g_variant_new("ay", builder);
 994         g_dbus_connection_call(conn,
 995                         BT_BLUEZ_NAME,
 996                         char_handle,
 997                         GATT_CHAR_INTERFACE,
 998                         "WriteValuebyType",
 999                         g_variant_new("(y@ay)", write_type, val),
1000                         NULL,
1001                         G_DBUS_CALL_FLAGS_NONE,
1002                         -1, NULL,
1003                         (GAsyncReadyCallback)__bluetooth_internal_write_cb,
1004                         NULL);
1005
1006         g_variant_builder_unref(builder);
1007         return ret;
1008 }
1009
1010 BT_EXPORT_API int bluetooth_gatt_set_characteristics_value_request(
1011                         const char *char_handle, const guint8 *value, int length)
1012 {
1013         GVariant *val;
1014         GDBusConnection *conn;
1015         GVariantBuilder *builder;
1016         int i;
1017
1018         BT_DBG("+");
1019         BT_CHECK_PARAMETER(char_handle, return);
1020         BT_CHECK_PARAMETER(value, return);
1021         retv_if(length == 0, BLUETOOTH_ERROR_INVALID_PARAM);
1022         BT_CHECK_ENABLED_ANY(return);
1023
1024         conn = _bt_gdbus_get_system_gconn();
1025         retv_if(conn == NULL, BLUETOOTH_ERROR_INTERNAL);
1026
1027         builder = g_variant_builder_new(G_VARIANT_TYPE("ay"));
1028
1029         for (i = 0; i < length; i++) {
1030                 g_variant_builder_add(builder, "y", value[i]);
1031                 BT_DBG("value [] = %d", value[i]);
1032         }
1033
1034         val = g_variant_new("(ay)", builder);
1035
1036         g_dbus_connection_call(conn,
1037                                 BT_BLUEZ_NAME,
1038                                 char_handle,
1039                                 GATT_CHAR_INTERFACE,
1040                                 "WriteValue",
1041                                 val,
1042                                 NULL,
1043                                 G_DBUS_CALL_FLAGS_NONE,
1044                                 -1, NULL,
1045                                 (GAsyncReadyCallback)__bluetooth_internal_write_cb,
1046                                 NULL);
1047
1048         g_variant_builder_unref(builder);
1049
1050         BT_DBG("-");
1051         return BLUETOOTH_ERROR_NONE;
1052 }
1053
1054 static int __bluetooth_gatt_descriptor_iter(const char *char_handle,
1055                         bt_gatt_char_property_t *characteristic)
1056 {
1057         BT_DBG("+");
1058         GDBusProxy *properties_proxy = NULL;
1059         GError *error = NULL;
1060         GVariant *value = NULL;
1061         GVariant *result = NULL;
1062         GDBusConnection *g_conn;
1063         int i, ret = BLUETOOTH_ERROR_NONE;
1064         const char *uuid = NULL;
1065         gsize len = 0;
1066         GVariantIter *desc_value_iter, *property_iter;
1067         const gchar *key;
1068         char_descriptor_type_t desc_type = TYPE_NONE;
1069
1070         g_conn = _bt_gdbus_get_system_gconn();
1071         retv_if(g_conn == NULL, BLUETOOTH_ERROR_INTERNAL);
1072
1073         properties_proxy = g_dbus_proxy_new_sync(g_conn,
1074                         G_DBUS_PROXY_FLAGS_NONE, NULL,
1075                         BT_BLUEZ_NAME,
1076                         char_handle,
1077                         BT_PROPERTIES_INTERFACE,
1078                         NULL, &error);
1079
1080         retv_if(properties_proxy == NULL, BLUETOOTH_ERROR_INTERNAL);
1081
1082         result = g_dbus_proxy_call_sync(properties_proxy,
1083                                 "GetAll",
1084                                 g_variant_new("(s)", GATT_DESC_INTERFACE),
1085                                 G_DBUS_CALL_FLAGS_NONE,
1086                                 -1,
1087                                 NULL,
1088                                 &error);
1089
1090         if (!result) {
1091                 if (error != NULL) {
1092                         BT_ERR("Fail to get properties (Error: %s)", error->message);
1093                         g_clear_error(&error);
1094                 } else
1095                         BT_ERR("Fail to get properties");
1096                 g_object_unref(properties_proxy);
1097                 return BLUETOOTH_ERROR_INTERNAL;
1098         }
1099         g_variant_get(result, "(a{sv})", &property_iter);
1100         while (g_variant_iter_loop(property_iter, "{sv}", &key, &value)) {
1101                 if (!g_strcmp0(key,"UUID")) {
1102                         uuid = g_variant_get_string(value, &len);
1103                         if (g_strcmp0(uuid, GATT_USER_DESC_UUID) == 0) {
1104                                 BT_DBG("GATT_USER_DESC_UUID");
1105                                 desc_type = USER_DESC;
1106                         } else if (g_strcmp0(uuid, GATT_CHAR_FORMAT) == 0) {
1107                                 BT_DBG("GATT_CHAR_FORMAT");
1108                                 desc_type = CHAR_FORMAT;
1109                         } else if (g_strcmp0(uuid, GATT_CHAR_CLIENT_CONF) == 0) {
1110                                 BT_DBG("GATT_CHAR_CLIENT_CONF");
1111                                 desc_type = CLIENT_CONF;
1112                         } else if (g_strcmp0(uuid, GATT_CHAR_SERVER_CONF) == 0) {
1113                                 BT_DBG("GATT_CHAR_SERVER_CONF");
1114                                 desc_type = SERVER_CONF;
1115                         } else {
1116                                 BT_DBG("descriptor uuid = %s", uuid);
1117                         }
1118                 } else if (!g_strcmp0(key, "Value")) {
1119                         switch(desc_type) {
1120                                 case CHAR_FORMAT :
1121                                         BT_DBG("Format descriptor");
1122                                         g_variant_get(value, "(yyqyq)",
1123                                                         &(characteristic->format.format),
1124                                                         &(characteristic->format.exponent),
1125                                                         &(characteristic->format.unit),
1126                                                         &(characteristic->format.name_space),
1127                                                         &(characteristic->format.description));
1128                                         break;
1129                                 case USER_DESC:
1130                                         BT_DBG("User descriptor");
1131                                         g_variant_get(value, "ay", &desc_value_iter);
1132                                         len = g_variant_get_size((GVariant *)desc_value_iter);
1133
1134                                         if (len > 0) {
1135                                                 characteristic->description = (char *)g_malloc0(len + 1);
1136                                                 if (!characteristic->description) {
1137                                                         ret = BLUETOOTH_ERROR_OUT_OF_MEMORY;
1138                                                         goto done;
1139                                                 }
1140                                         }
1141                                         for (i = 0; i < len; i++) {
1142                                                 g_variant_iter_loop(desc_value_iter, "y",
1143                                                         &characteristic->description[i]);
1144                                                 BT_DBG("description = %s", characteristic->description);
1145                                         }
1146                                         g_variant_iter_free(desc_value_iter);
1147                                         break;
1148                                 case CLIENT_CONF :
1149                                         BT_DBG(" CLIENT_CONF");
1150                                         break;
1151                                 case SERVER_CONF :
1152                                         BT_DBG(" SERVER_CONF");
1153                                         break;
1154                                 default:break;
1155                         }
1156                 }
1157         }
1158
1159 done:
1160         g_variant_iter_free(property_iter);
1161         g_variant_unref(result);
1162         g_object_unref(properties_proxy);
1163
1164         BT_DBG("-");
1165         return ret;
1166 }
1167
1168
1169 static void bluetooth_gatt_get_char_desc_cb(GDBusProxy *proxy,
1170                         GAsyncResult *res, gpointer user_data)
1171 {
1172         BT_DBG("+");
1173         GVariant *value;
1174         GVariant        *char_value;
1175         GVariantIter *char_iter;
1176         char *char_handle;
1177         GError *error = NULL;
1178         bt_user_info_t *user_info;
1179         bt_gatt_char_property_t characteristic = {0, };
1180         int ret = BLUETOOTH_ERROR_INTERNAL;
1181
1182         user_info = _bt_get_user_data(BT_COMMON);
1183
1184         value = g_dbus_proxy_call_finish(proxy, res, &error);
1185
1186         if (value == NULL) {
1187                 if (error != NULL) {
1188                         BT_ERR("Get characteristic descriptor failed\n errCode[%x],"
1189                                         "message[%s]\n", error->code, error->message);
1190                         g_clear_error(&error);
1191                 } else {
1192                         BT_ERR("Get characteristic descriptor failed\n");
1193                 }
1194                 if (user_info) {
1195                         _bt_common_event_cb(BLUETOOTH_EVENT_GATT_SVC_CHAR_DESC_DISCOVERED,
1196                                 BLUETOOTH_ERROR_INTERNAL, NULL,
1197                                 user_info->cb, user_info->user_data);
1198                 }
1199                 g_free(user_data);
1200                 g_object_unref(proxy);
1201                 return;
1202         }
1203
1204         g_variant_get(value, "(v)", &char_value);
1205         g_variant_get(char_value, "ao", &char_iter);
1206
1207         while(g_variant_iter_loop(char_iter, "&o",  &char_handle)) {
1208                 BT_DBG("object path of descriptor = %s",char_handle);
1209                 if(char_handle) {
1210                                 ret = __bluetooth_gatt_descriptor_iter(char_handle,
1211                                                         &characteristic);
1212                                 BT_DBG("Descriptor read status [%d]",ret);
1213                 }
1214         }
1215
1216         characteristic.handle = user_data;
1217         if (user_info) {
1218                 _bt_common_event_cb(BLUETOOTH_EVENT_GATT_SVC_CHAR_DESC_DISCOVERED,
1219                                 ret, &characteristic, user_info->cb, user_info->user_data);
1220         }
1221         bluetooth_gatt_free_char_property(&characteristic);
1222
1223         g_variant_iter_free(char_iter);
1224         BT_DBG("-");
1225 }
1226
1227 BT_EXPORT_API int bluetooth_gatt_discover_characteristic_descriptor(
1228                         const char *characteristic_handle)
1229 {
1230         GDBusProxy *properties_proxy = NULL;
1231         GDBusConnection *g_conn;
1232         char *handle;
1233         GError *error = NULL;
1234
1235         BT_CHECK_PARAMETER(characteristic_handle, return);
1236         BT_CHECK_ENABLED_ANY(return);
1237
1238         g_conn = _bt_gdbus_get_system_gconn();
1239         retv_if(g_conn == NULL, BLUETOOTH_ERROR_INTERNAL);
1240
1241         properties_proxy = g_dbus_proxy_new_sync(g_conn,
1242                         G_DBUS_PROXY_FLAGS_NONE, NULL,
1243                         BT_BLUEZ_NAME,
1244                         characteristic_handle,
1245                         BT_PROPERTIES_INTERFACE,
1246                         NULL, &error);
1247
1248         retv_if(properties_proxy == NULL, BLUETOOTH_ERROR_INTERNAL);
1249
1250         handle = g_strdup(characteristic_handle);
1251         g_dbus_proxy_call(properties_proxy,
1252                         "Get",
1253                         g_variant_new("(ss)",
1254                                 GATT_CHAR_INTERFACE, "Descriptors"),
1255                         G_DBUS_CALL_FLAGS_NONE,
1256                         -1, NULL,
1257                         (GAsyncReadyCallback)bluetooth_gatt_get_char_desc_cb,
1258                         (gpointer)handle);
1259
1260         return BLUETOOTH_ERROR_NONE;
1261 }
1262
1263 static void __bluetooth_internal_read_desc_cb(GObject *source_object,
1264                         GAsyncResult *res,
1265                         gpointer user_data)
1266 {
1267         GError *error = NULL;
1268         bt_user_info_t *user_info;
1269         bt_gatt_char_property_t char_value =  { 0, };
1270         GDBusConnection *system_gconn = NULL;
1271         GVariant *value;
1272         GByteArray *gp_byte_array = NULL;
1273         GVariantIter *iter;
1274         guint8 g_byte;
1275
1276         BT_DBG("+");
1277         user_info = _bt_get_user_data(BT_COMMON);
1278         system_gconn = _bt_gdbus_get_system_gconn();
1279
1280         char_value.handle = user_data;
1281         value = g_dbus_connection_call_finish(system_gconn, res, &error);
1282
1283         if (error) {
1284                 BT_ERR("Error : %s \n", error->message);
1285                 g_clear_error(&error);
1286                 if (user_info) {
1287                         _bt_common_event_cb(BLUETOOTH_EVENT_GATT_READ_DESC,
1288                                         BLUETOOTH_ERROR_INTERNAL, NULL,
1289                                         user_info->cb, user_info->user_data);
1290                 }
1291                 g_free(char_value.handle);
1292                 return;
1293         }
1294
1295         gp_byte_array = g_byte_array_new();
1296         g_variant_get(value, "(ay)", &iter);
1297
1298         while(g_variant_iter_loop(iter, "y",  &g_byte)) {
1299                 g_byte_array_append(gp_byte_array, &g_byte, 1);
1300         }
1301
1302         if (gp_byte_array->len != 0) {
1303                 char_value.val_len = (unsigned int )gp_byte_array->len;
1304                 char_value.description= (char *)gp_byte_array->data;
1305         }
1306
1307         if (user_info) {
1308                 _bt_common_event_cb(BLUETOOTH_EVENT_GATT_READ_DESC,
1309                                 BLUETOOTH_ERROR_NONE, &char_value,
1310                                 user_info->cb, user_info->user_data);
1311         }
1312
1313         g_byte_array_free(gp_byte_array, TRUE);
1314         g_free(char_value.handle);
1315         g_variant_unref(value);
1316         g_variant_iter_free(iter);
1317
1318         BT_DBG("-");
1319 }
1320
1321 BT_EXPORT_API int bluetooth_gatt_read_descriptor_value(const char *char_descriptor)
1322 {
1323         GDBusConnection *conn;
1324         char *handle;
1325
1326         BT_DBG("+");
1327         BT_CHECK_PARAMETER(char_descriptor, return);
1328         BT_CHECK_ENABLED_ANY(return);
1329
1330         conn = _bt_gdbus_get_system_gconn();
1331         retv_if(conn == NULL, BLUETOOTH_ERROR_INTERNAL);
1332
1333         handle = g_strdup(char_descriptor);
1334
1335         g_dbus_connection_call(conn,
1336                         BT_BLUEZ_NAME,
1337                         char_descriptor,
1338                         GATT_DESC_INTERFACE,
1339                         "ReadValue",
1340                         NULL,
1341                         G_VARIANT_TYPE("(ay)"),
1342                         G_DBUS_CALL_FLAGS_NONE,
1343                         -1,
1344                         NULL,
1345                         (GAsyncReadyCallback)__bluetooth_internal_read_desc_cb,
1346                         (gpointer)handle);
1347
1348         BT_DBG("-");
1349         return BLUETOOTH_ERROR_NONE;
1350 }
1351
1352 static void __bluetooth_internal_write_desc_cb(GObject *source_object,
1353                         GAsyncResult *res,
1354                         gpointer user_data)
1355 {
1356         GError *error = NULL;
1357         bt_user_info_t *user_info;
1358         GDBusConnection *system_gconn = NULL;
1359         GVariant *value;
1360         int result = BLUETOOTH_ERROR_NONE;
1361
1362         BT_DBG("+");
1363         user_info = _bt_get_user_data(BT_COMMON);
1364
1365         system_gconn = _bt_gdbus_get_system_gconn();
1366         value = g_dbus_connection_call_finish(system_gconn, res, &error);
1367
1368         if (error) {
1369                 BT_ERR("Error : %s \n", error->message);
1370                 g_clear_error(&error);
1371                 result = BLUETOOTH_ERROR_INTERNAL;
1372         }
1373         if (user_info) {
1374                 _bt_common_event_cb(BLUETOOTH_EVENT_GATT_WRITE_DESC,
1375                                 result, NULL,
1376                                 user_info->cb, user_info->user_data);
1377         }
1378
1379         if(value)
1380                 g_variant_unref(value);
1381
1382         BT_DBG("-");
1383 }
1384
1385 BT_EXPORT_API int bluetooth_gatt_write_descriptor_value(
1386                         const char *desc_handle, const guint8 *value, int length)
1387 {
1388         GVariant *val;
1389         GDBusConnection *conn;
1390         GVariantBuilder *builder;
1391         int i;
1392
1393         BT_DBG("+");
1394         BT_CHECK_PARAMETER(desc_handle, return);
1395         BT_CHECK_PARAMETER(value, return);
1396         retv_if(length == 0, BLUETOOTH_ERROR_INVALID_PARAM);
1397         BT_CHECK_ENABLED_ANY(return);
1398
1399         conn = _bt_gdbus_get_system_gconn();
1400         retv_if(conn == NULL, BLUETOOTH_ERROR_INTERNAL);
1401
1402         builder = g_variant_builder_new(G_VARIANT_TYPE("ay"));
1403
1404         for (i = 0; i < length; i++) {
1405                 g_variant_builder_add(builder, "y", value[i]);
1406         }
1407
1408         val = g_variant_new("(ay)", builder);
1409
1410         g_dbus_connection_call(conn,
1411                                 BT_BLUEZ_NAME,
1412                                 desc_handle,
1413                                 GATT_DESC_INTERFACE,
1414                                 "WriteValue",
1415                                 val,
1416                                 NULL,
1417                                 G_DBUS_CALL_FLAGS_NONE,
1418                                 -1, NULL,
1419                                 (GAsyncReadyCallback)__bluetooth_internal_write_desc_cb,
1420                                 NULL);
1421
1422         g_variant_builder_unref(builder);
1423
1424         BT_DBG("-");
1425         return BLUETOOTH_ERROR_NONE;
1426 }
1427
1428 #ifndef GATT_NO_RELAY
1429 static int __bluetooth_gatt_watch_characteristics(void)
1430 {
1431         int result = BLUETOOTH_ERROR_NONE;
1432
1433         BT_INIT_PARAMS();
1434         BT_ALLOC_PARAMS(in_param1, in_param2, in_param3, in_param4, out_param);
1435
1436         result = _bt_send_request(BT_BLUEZ_SERVICE,
1437                         BT_GATT_WATCH_CHARACTERISTIC,
1438                         in_param1, in_param2, in_param3, in_param4, &out_param);
1439
1440         if (result != BLUETOOTH_ERROR_NONE)
1441                         BT_ERR("Watch Characteristic request failed !");
1442
1443         BT_FREE_PARAMS(in_param1, in_param2, in_param3, in_param4, out_param);
1444         return result;
1445 }
1446 #endif
1447
1448 BT_EXPORT_API int bluetooth_gatt_watch_characteristics(const char *char_handle)
1449 {
1450
1451         GDBusConnection *conn;
1452         GError *error = NULL;
1453         int ret = BLUETOOTH_ERROR_NONE;
1454         BT_DBG("+");
1455         BT_CHECK_PARAMETER(char_handle, return);
1456
1457         BT_CHECK_ENABLED_ANY(return);
1458
1459         BT_DBG("Entered characteristic handle:%s \n ", char_handle);
1460
1461         conn = _bt_gdbus_get_system_gconn();
1462         retv_if(conn == NULL, BLUETOOTH_ERROR_INTERNAL);
1463
1464         g_dbus_connection_call_sync(conn,
1465                         BT_BLUEZ_NAME,
1466                         char_handle,
1467                         GATT_CHAR_INTERFACE,
1468                         "StartNotify",
1469                         NULL,
1470                         NULL,
1471                         G_DBUS_CALL_FLAGS_NONE,
1472                         -1, NULL, &error);
1473
1474         if (error) {
1475                 BT_ERR("Watch Failed: %s", error->message);
1476                 if (g_strrstr(error->message, "Already notifying"))
1477                         ret = BLUETOOTH_ERROR_NONE;
1478                 else if (g_strrstr(error->message, "In Progress"))
1479                         ret = BLUETOOTH_ERROR_IN_PROGRESS;
1480                 else if (g_strrstr(error->message, "Operation is not supported"))
1481                         ret = BLUETOOTH_ERROR_NOT_SUPPORT;
1482 /*failed because of either Insufficient Authorization or Write Not Permitted */
1483                 else if (g_strrstr(error->message, "Write not permitted") ||
1484                                 g_strrstr(error->message, "Operation Not Authorized"))
1485                         ret = BLUETOOTH_ERROR_PERMISSION_DEINED;
1486 /* failed because of either Insufficient Authentication,
1487         Insufficient Encryption Key Size, or Insufficient Encryption. */
1488                 else if (g_strrstr(error->message, "Not paired"))
1489                         ret = BLUETOOTH_ERROR_NOT_PAIRED;
1490                 else
1491                         ret = BLUETOOTH_ERROR_INTERNAL;
1492
1493                 g_clear_error(&error);
1494         }
1495 #ifndef GATT_NO_RELAY
1496         else {
1497                 /* Register the client sender to bt-service */
1498                 ret = __bluetooth_gatt_watch_characteristics();
1499         }
1500 #endif
1501
1502         return ret;
1503 }
1504
1505 #ifndef GATT_NO_RELAY
1506 static void __bluetooth_gatt_unwatch_characteristics(void)
1507 {
1508         int result = BLUETOOTH_ERROR_NONE;
1509
1510         BT_INIT_PARAMS();
1511         BT_ALLOC_PARAMS(in_param1, in_param2, in_param3, in_param4, out_param);
1512
1513         result = _bt_send_request(BT_BLUEZ_SERVICE,
1514                         BT_GATT_UNWATCH_CHARACTERISTIC,
1515                         in_param1, in_param2, in_param3, in_param4, &out_param);
1516
1517         if (result != BLUETOOTH_ERROR_NONE)
1518                         BT_ERR("Unwatch Characteristic request failed !");
1519
1520         BT_FREE_PARAMS(in_param1, in_param2, in_param3, in_param4, out_param);
1521 }
1522 #endif
1523
1524 BT_EXPORT_API int bluetooth_gatt_unwatch_characteristics(const char *char_handle)
1525 {
1526
1527         GDBusConnection *conn;
1528         GError *error = NULL;
1529         int ret = BLUETOOTH_ERROR_NONE;
1530         BT_DBG("+");
1531         BT_CHECK_PARAMETER(char_handle, return);
1532
1533         BT_CHECK_ENABLED_ANY(return);
1534
1535         BT_DBG("Entered characteristic handle:%s \n ", char_handle);
1536
1537         conn = _bt_gdbus_get_system_gconn();
1538         retv_if(conn == NULL, BLUETOOTH_ERROR_INTERNAL);
1539
1540         g_dbus_connection_call_sync(conn,
1541                         BT_BLUEZ_NAME,
1542                         char_handle,
1543                         GATT_CHAR_INTERFACE,
1544                         "StopNotify",
1545                         NULL,
1546                         NULL,
1547                         G_DBUS_CALL_FLAGS_NONE,
1548                         -1, NULL, &error);
1549
1550         if (error) {
1551                 BT_ERR("Watch Failed: %s", error->message);
1552                 g_clear_error(&error);
1553                 ret =  BLUETOOTH_ERROR_INTERNAL;
1554         }
1555 #ifndef GATT_NO_RELAY
1556         else {
1557                 /* Unregister the client sender to bt-service */
1558                 __bluetooth_gatt_unwatch_characteristics();
1559         }
1560 #endif
1561         BT_DBG("-");
1562         return ret;
1563 }