src/eventsystem.c

   1 /**
   2  * event system low-level API
   3  */
   4 #include <stdio.h>
   5 #include <string.h>
   6 #include <stdlib.h>
   7 #include <dlog.h>
   8 #include <bundle.h>
   9 #include <bundle_internal.h>
  10 #include <glib.h>
  11 #include <gio/gio.h>
  12 #include <eventsystem.h>
  13 #include <fcntl.h>
  14
  15 #undef LOG_TAG
  16 #define LOG_TAG "eventsystem"
  17
  18 #define SYS_EVENT_NAME_PREFIX "tizen.system.event"
  19 #define EVENT_SYSTEM_PREFIX "eventsystem.id_"
  20 #define EVENT_SYSTEM_PREFIX_LEN 15
  21 #define EVENT_SYSTEM_MEMBER "eventsystem"
  22 #define VALID_COUNT_OF_EVENTNAME_TOKEN 3
  23 #define VALID_LAST_COUNT_FOR_EVENTNAME (VALID_COUNT_OF_EVENTNAME_TOKEN + 1)
  24 #define MAX_COUNT_FOR_EVENTNAME_CHECK (VALID_LAST_COUNT_FOR_EVENTNAME + 1)
  25
  26 #define _E(fmt, arg...) LOGE(fmt, ##arg)
  27 #define _D(fmt, arg...) LOGD(fmt, ##arg)
  28 #define _W(fmt, arg...) LOGW(fmt, ##arg)
  29 #define _I(fmt, arg...) LOGI(fmt, ##arg)
  30
  31 #define retvm_if(expr, val, fmt, arg...) do { \
  32         if (expr) { \
  33                 _E(fmt, ##arg); \
  34                 _E("(%s) -> %s() return", #expr, __func__); \
  35                 return val; \
  36         } \
  37 } while (0)
  38
  39 #define retv_if(expr, val) do { \
  40         if (expr) { \
  41                 _E("(%s) -> %s() return", #expr, __func__); \
  42                 return val; \
  43         } \
  44 } while (0)
  45
  46 #define tryvm_if(expr, val, fmt, arg...) do { \
  47          if (expr) { \
  48                 _E("(%s) "fmt, #expr, ##arg); \
  49                 val; \
  50                 goto catch; \
  51         } \
  52 } while (0)
  53
  54 pthread_mutex_t send_sync_lock = PTHREAD_MUTEX_INITIALIZER;
  55
  56 static GList *system_event_list;
  57 static int _initialized;
  58 static GHashTable *check_tbl;
  59 static GHashTable *filter_tbl;
  60
  61 typedef struct eventmap {
  62         char *event_name;
  63         char *interface_name;
  64         char *member_name;
  65         guint reg_id;
  66         GBusType bus_type;
  67         int event_type;
  68         union {
  69                 eventsystem_cb es_cb;
  70                 eventsystem_handler ep_cb;
  71         };
  72 } eventmap_s;
  73
  74 typedef struct eventinfo {
  75         char *event_name;
  76         char *destination_name;
  77         char *interface_name;
  78         char *object_path;
  79         char *member_name;
  80         bool is_user_event;
  81         bundle *event_data;
  82 } eventinfo_s;
  83
  84 typedef struct sysevent_info {
  85         guint owner_id;
  86         guint owner_id_session;
  87         char *own_name_system_bus;
  88         char *own_name_session_bus;
  89 } sysevent_info_s;
  90 static sysevent_info_s s_info;
  91
  92 static int __eventsystem_check_user_send_validation(const char *event_name);
  93 static int __eventsystem_requet_destination_list(const char *event_name, GList **dest_list);
  94 static int __eventsystem_check_sender_validation(int sender_pid,
  95                 const char *event_name, char **sender);
  96
  97 static int __event_compare_name_cb(gconstpointer a, gconstpointer b)
  98 {
  99         eventmap_s *key1 = (eventmap_s *)a;
 100         eventmap_s *key2 = (eventmap_s *)b;
 101         return strcmp(key1->interface_name, key2->interface_name) |
 102                         strcmp(key1->member_name, key2->member_name);
 103 }
 104
 105 static int __event_compare_reg_id_cb(gconstpointer a, gconstpointer b)
 106 {
 107         eventmap_s *key1 = (eventmap_s *)a;
 108         eventmap_s *key2 = (eventmap_s *)b;
 109         return !(key1->reg_id == key2->reg_id);
 110 }
 111
 112 static void __initialize(void)
 113 {
 114 #if (GLIB_MAJOR_VERSION <= 2 && GLIB_MINOR_VERSION < 36)
 115         g_type_init();
 116 #endif
 117
 118         _initialized = 1;
 119 }
 120
 121 static int __eventsystem_get_sender_pid(GDBusConnection *conn, const char *sender_name)
 122 {
 123         GDBusMessage *msg = NULL;
 124         GDBusMessage *reply = NULL;
 125         GError *err = NULL;
 126         GVariant *body;
 127         int pid = 0;
 128
 129         msg = g_dbus_message_new_method_call("org.freedesktop.DBus", "/org/freedesktop/DBus",
 130                 "org.freedesktop.DBus", "GetConnectionUnixProcessID");
 131         if (!msg) {
 132                 _E("Can't allocate new method call");
 133                 goto out;
 134         }
 135
 136         g_dbus_message_set_body(msg, g_variant_new("(s)", sender_name));
 137         reply = g_dbus_connection_send_message_with_reply_sync(conn, msg,
 138                 G_DBUS_SEND_MESSAGE_FLAGS_NONE, -1, NULL, NULL, &err);
 139
 140         if (!reply) {
 141                 if (err != NULL) {
 142                         _E("Failed to get pid [%s]", err->message);
 143                         g_error_free(err);
 144                 }
 145                 goto out;
 146         }
 147
 148         body = g_dbus_message_get_body(reply);
 149         g_variant_get(body, "(u)", &pid);
 150
 151 out:
 152         if (msg)
 153                 g_object_unref(msg);
 154         if (reply)
 155                 g_object_unref(reply);
 156
 157         return pid;
 158 }
 159
 160 static char *__get_object_path(char *interface_name)
 161 {
 162         int i;
 163         char *object_path = (char *)calloc(strlen(interface_name), sizeof(char)+2);
 164
 165         if (object_path == NULL) {
 166                 _E("failed to allocate memory");
 167                 return NULL;
 168         }
 169
 170         object_path[0] = '/';
 171
 172         for (i = 0 ; interface_name[i] ; i++) {
 173
 174                 if (interface_name[i] == '.') {
 175                         object_path[i+1] = '/';
 176                 } else {
 177                         object_path[i+1] = interface_name[i];
 178                 }
 179         }
 180
 181         return object_path;
 182 }
 183
 184 static char *__get_encoded_interface_name(char *interface_name)
 185 {
 186         char *evtid = NULL;
 187         int evtid_len = 0;
 188         gchar *encoded_value;
 189
 190         encoded_value = g_compute_checksum_for_string(G_CHECKSUM_MD5,
 191                 interface_name, strlen(interface_name));
 192
 193         evtid_len = EVENT_SYSTEM_PREFIX_LEN + strlen(encoded_value) + 1;
 194
 195         evtid = (char *)calloc(evtid_len, sizeof(char));
 196         if (evtid == NULL) {
 197                 _D("memory alloc failed");
 198                 g_free(encoded_value);
 199                 return NULL;
 200         }
 201
 202         snprintf(evtid, evtid_len, "%s%s", EVENT_SYSTEM_PREFIX, (char *)encoded_value);
 203
 204         g_free(encoded_value);
 205
 206         return evtid;
 207 }
 208
 209 static char *__get_member_name_from_eventname(char *event_name)
 210 {
 211         char *ptr = NULL;
 212         char *ptr_last = NULL;
 213         char *temp_name = NULL;
 214         char *member_name = NULL;
 215         char *save_ptr = NULL;
 216         int count = 0;
 217
 218         temp_name = strdup(event_name);
 219         if (temp_name == NULL) {
 220                 _E("out of memory");
 221                 return NULL;
 222         }
 223
 224         ptr = strtok_r(temp_name, ".", &save_ptr);
 225         if (ptr == NULL) {
 226                 _E("invalid event_name(%s), count(%d)", event_name, count);
 227                 FREE_AND_NULL(temp_name);
 228                 return NULL;
 229         }
 230         count++;
 231
 232         while (count < MAX_COUNT_FOR_EVENTNAME_CHECK) {
 233                 ptr = strtok_r(NULL, ".", &save_ptr);
 234                 if (ptr == NULL)
 235                         break;
 236                 /* _D("(%d)ptr(%s)(%d)", count, ptr, strlen(ptr)); */
 237                 ptr_last = ptr;
 238                 count++;
 239         }
 240         FREE_AND_NULL(temp_name);
 241
 242         if (count != VALID_LAST_COUNT_FOR_EVENTNAME) {
 243                 _E("invalid event_name(%s), count(%d)", event_name, count);
 244                 return NULL;
 245         }
 246
 247         if (ptr_last) {
 248                 /* _D("new member_name(%s)(%d)", ptr_last, strlen(ptr_last)); */
 249                 member_name = strdup(ptr_last);
 250                 if (!member_name) {
 251                         _E("out_of_memory");
 252                         return NULL;
 253                 }
 254         } else {
 255                 _E("ptr_last is NULL");
 256                 return NULL;
 257         }
 258
 259         _D("member_name(%s)", member_name);
 260
 261         return member_name;
 262 }
 263
 264 static int __check_validation_usrevent_sender(int sender_pid,
 265                 const char *interface_name, const char *event_name)
 266 {
 267         char *sender_id = NULL;
 268         char *key = NULL;
 269         char *val = NULL;
 270
 271         if (__eventsystem_check_sender_validation(sender_pid,
 272                 event_name, &sender_id) < 0) {
 273                 _E("invalid user-event sender");
 274                 return ES_R_EINVAL;
 275         }
 276
 277         if (sender_id == NULL) {
 278                 _E("sender_id is null");
 279                 return ES_R_EINVAL;
 280         }
 281
 282         key = strdup(interface_name);
 283         if (key == NULL) {
 284                 _E("out of memory");
 285                 return ES_R_ENOMEM;
 286         }
 287
 288         val = strdup(sender_id);
 289         if (val == NULL) {
 290                 _E("out of memory");
 291                 free(key);
 292                 return ES_R_ENOMEM;
 293         }
 294
 295         g_hash_table_insert(filter_tbl, key, val);
 296
 297         return ES_R_OK;
 298 }
 299
 300 static int __check_validation_user_defined_name(const char *event_name)
 301 {
 302         char *event_id = NULL;
 303         char *key = NULL;
 304         int ret = 1;
 305
 306         if (check_tbl == NULL) {
 307                 check_tbl = g_hash_table_new(g_str_hash, g_str_equal);
 308         }
 309
 310         event_id = (char *)g_hash_table_lookup(check_tbl, event_name);
 311
 312         if (event_id == NULL) {
 313                 if (__eventsystem_check_user_send_validation(event_name) < 0) {
 314                         _E("invalid user-event name");
 315                         ret = 0;
 316                 } else {
 317                         key = strdup(event_name);
 318                         if (key == NULL) {
 319                                 _E("out_of_memory");
 320                                 ret = 0;
 321                         } else {
 322                                 g_hash_table_insert(check_tbl, key, key);
 323                         }
 324                 }
 325         }
 326
 327         return ret;
 328 }
 329
 330 static int __check_interface_validation_user(char *interface_name)
 331 {
 332         int ret = 1;
 333         int len = strlen(EVENT_SYSTEM_PREFIX);
 334
 335         if (strncmp(interface_name, EVENT_SYSTEM_PREFIX, len) != 0) {
 336                 ret = 0;
 337         }
 338
 339         return ret;
 340 }
 341
 342 static int __check_eventname_validation_user(char *event_name)
 343 {
 344         int ret = 1;
 345         int len = strlen(USER_EVENT_NAME_PREFIX);
 346
 347         if (strncmp(event_name, USER_EVENT_NAME_PREFIX, len) != 0) {
 348                 ret = 0;
 349         }
 350
 351         return ret;
 352 }
 353
 354 static int __check_eventname_validation_system(char *event_name)
 355 {
 356         int ret = 1;
 357         int len = strlen(SYS_EVENT_NAME_PREFIX);
 358
 359         if (strncmp(event_name, SYS_EVENT_NAME_PREFIX, len) != 0) {
 360                 ret = 0;
 361         }
 362
 363         return ret;
 364 }
 365
 366 static int __get_gdbus_shared_connection(GDBusConnection **connection, GBusType bus_type,
 367                 eventsystem_event_type event_type)
 368 {
 369         GError *error = NULL;
 370         guint owner_id = 0;
 371
 372         if (!_initialized) {
 373                 __initialize();
 374         }
 375
 376         *connection = g_bus_get_sync(bus_type, NULL, &error);
 377         if (*connection == NULL) {
 378                 if (error != NULL) {
 379                         _E("Failed to get dbus [%s], bus_type [%d]",
 380                                 error->message, bus_type);
 381                         g_error_free(error);
 382                 }
 383                 return ES_R_ERROR;
 384         }
 385
 386         if (((bus_type == G_BUS_TYPE_SYSTEM && !s_info.owner_id) ||
 387                 (bus_type == G_BUS_TYPE_SESSION && !s_info.owner_id_session))) {
 388                 gchar *guid = NULL;
 389                 char own_name[128] = {0, };
 390
 391                 guid = g_dbus_generate_guid();
 392                 if (guid == NULL) {
 393                         _E("failed to get guid");
 394                         return ES_R_ERROR;
 395                 }
 396                 snprintf(own_name, 128, "%s_%s_%s_%d", "event.busname",
 397                         (bus_type == G_BUS_TYPE_SESSION ? "session" : "system"),
 398                         guid, getpid());
 399                 g_free(guid);
 400
 401                 _D("bus_name is [%s]", own_name);
 402                 owner_id = g_bus_own_name_on_connection(*connection, own_name,
 403                         G_BUS_NAME_OWNER_FLAGS_NONE,
 404                         NULL, NULL, NULL, NULL);
 405                 if (!owner_id) {
 406                         _E("g_bus_own_name_on_connection, error");
 407                         return ES_R_ERROR;
 408                 }
 409
 410                 if (bus_type == G_BUS_TYPE_SESSION && event_type == ES_TYPE_USER) {
 411                         /* set same name on system-bus */
 412                         GDBusConnection *conn_system = NULL;
 413
 414                         error = NULL;
 415                         conn_system = g_bus_get_sync(G_BUS_TYPE_SYSTEM, NULL, &error);
 416                         if (conn_system == NULL) {
 417                                 _E("failed to get system connection");
 418                                 if (error != NULL) {
 419                                         _E("error(%s)", error->message);
 420                                         g_error_free(error);
 421                                 }
 422                                 return ES_R_ERROR;
 423                         } else {
 424                                 owner_id = g_bus_own_name_on_connection(conn_system,
 425                                         own_name, G_BUS_NAME_OWNER_FLAGS_NONE,
 426                                         NULL, NULL, NULL, NULL);
 427                                 if (!owner_id) {
 428                                         _E("g_bus_own_name_on_connection(for system), error");
 429                                         g_object_unref(conn_system);
 430                                         return ES_R_ERROR;
 431                                 }
 432
 433                                 g_object_unref(conn_system);
 434                         }
 435                 }
 436
 437                 if (bus_type == G_BUS_TYPE_SESSION) {
 438                         s_info.owner_id_session = owner_id;
 439                         s_info.own_name_session_bus = strdup(own_name);
 440                         if (s_info.own_name_session_bus == NULL) {
 441                                 _E("out of memory");
 442                                 return ES_R_ERROR;
 443                         }
 444                 } else {
 445                         s_info.owner_id = owner_id;
 446                         s_info.own_name_system_bus = strdup(own_name);
 447                         if (s_info.own_name_system_bus == NULL) {
 448                                 _E("out of memory");
 449                                 return ES_R_ERROR;
 450                         }
 451                 }
 452         }
 453
 454         return ES_R_OK;
 455 }
 456
 457 static void __eventsystem_event_handler(GDBusConnection *connection,
 458                 const gchar *sender_name, const gchar *object_path,
 459                 const gchar *interface_name, const gchar *signal_name,
 460                 GVariant *parameters, gpointer user_data)
 461 {
 462         int len;
 463         eventmap_s em;
 464         GList *cb_list = NULL;
 465         bundle *buf = NULL;
 466         bundle_raw *raw = NULL;
 467
 468         em.interface_name = (char *)interface_name;
 469         em.member_name = (char *)signal_name;
 470
 471         _D("sender_name(%s), interface_name(%s), signal_name(%s)",
 472                 sender_name, interface_name, signal_name);
 473
 474         cb_list = g_list_find_custom(system_event_list, &em,
 475                 (GCompareFunc)__event_compare_name_cb);
 476         if (cb_list == NULL) {
 477                 return;
 478         }
 479
 480         g_variant_get(parameters, "(us)", &len, &raw);
 481
 482         buf = bundle_decode((bundle_raw *)raw, len);
 483
 484         em.event_name = ((eventmap_s *)cb_list->data)->event_name;
 485         em.ep_cb = ((eventmap_s *)cb_list->data)->ep_cb;
 486         if (em.ep_cb) {
 487                 em.ep_cb(em.event_name, buf, user_data);
 488         }
 489
 490         bundle_free_encoded_rawdata(&raw);
 491         bundle_free(buf);
 492 }
 493
 494 static void __eventsystem_application_event_handler(int sender_pid,
 495                 const gchar *interface_name, const gchar *signal_name,
 496                 GVariant *parameters, gpointer user_data)
 497 {
 498         GList *cb_list = NULL;
 499         eventmap_s em;
 500         bundle_raw *raw = NULL;
 501         int len;
 502
 503         em.interface_name = (char *)interface_name;
 504         em.member_name = (char *)signal_name;
 505
 506         cb_list = g_list_find_custom(system_event_list, &em,
 507                 (GCompareFunc)__event_compare_name_cb);
 508
 509         if (cb_list == NULL) {
 510                 _E("not interested event");
 511                 return;
 512         }
 513
 514         em.event_name = ((eventmap_s *)cb_list->data)->event_name;
 515
 516         if (sender_pid > 0 && __check_interface_validation_user((char *)interface_name)) {
 517                 if (__check_validation_usrevent_sender(sender_pid,
 518                         (const char *)interface_name, em.event_name) < 0) {
 519                         _E("invalid sender");
 520                         return;
 521                 }
 522         }
 523
 524         g_variant_get(parameters, "(us)", &len, &raw);
 525         em.es_cb = ((eventmap_s *)cb_list->data)->es_cb;
 526         if (em.es_cb) {
 527                 em.es_cb(em.event_name, raw, len, user_data);
 528         }
 529
 530         bundle_free_encoded_rawdata(&raw);
 531 }
 532
 533 /**
 534  * application-use filter for user-event
 535  */
 536 static void __eventsystem_filter_userevent_for_application(GDBusConnection *connection,
 537                 const gchar *sender_name, const gchar *object_path,
 538                 const gchar *interface_name, const gchar *signal_name,
 539                 GVariant *parameters, gpointer user_data)
 540 {
 541         char *sender_id = NULL;
 542         int sender_pid = -1;
 543
 544         _D("sender_name(%s), interface_name(%s)", sender_name, interface_name);
 545
 546         if (filter_tbl == NULL) {
 547                 filter_tbl = g_hash_table_new(g_str_hash, g_str_equal);
 548         }
 549
 550         sender_id = (char *)g_hash_table_lookup(filter_tbl, interface_name);
 551
 552         if (sender_id == NULL) {
 553                 sender_pid = __eventsystem_get_sender_pid(connection, sender_name);
 554                 if (sender_pid <= 0) {
 555                         _E("failed to get pid of sender(%s)", sender_name);
 556                         return;
 557                 }
 558                 _D("sender_pid(%d)", sender_pid);
 559         }
 560
 561         __eventsystem_application_event_handler(sender_pid, interface_name,
 562                 signal_name, parameters, user_data);
 563 }
 564
 565 /**
 566  * application-use filter for system-event
 567  */
 568 static void __eventsystem_filter_sysevent_for_application(GDBusConnection *connection,
 569                 const gchar *sender_name, const gchar *object_path,
 570                 const gchar *interface_name, const gchar *signal_name,
 571                 GVariant *parameters, gpointer user_data)
 572 {
 573         _D("sender_name(%s), interface_name(%s)", sender_name, interface_name);
 574
 575         __eventsystem_application_event_handler(-1, interface_name,
 576                 signal_name, parameters, user_data);
 577 }
 578
 579 /**
 580  * internal-use filter for user-event
 581  */
 582 static void __eventsystem_filter_userevent_for_internal(GDBusConnection *connection,
 583                 const gchar *sender_name, const gchar *object_path,
 584                 const gchar *interface_name, const gchar *signal_name,
 585                 GVariant *parameters, gpointer user_data)
 586 {
 587         _D("sender_name(%s), interface_name(%s), signal_name(%s)",
 588                 sender_name, interface_name, signal_name);
 589
 590         __eventsystem_event_handler(connection, sender_name,
 591                 object_path, interface_name, signal_name, parameters, user_data);
 592 }
 593
 594 /**
 595  * internal-use filter for system-event
 596  */
 597 static void __eventsystem_filter_sysevent_for_internal(GDBusConnection *connection,
 598                 const gchar *sender_name, const gchar *object_path,
 599                 const gchar *interface_name, const gchar *signal_name,
 600                 GVariant *parameters, gpointer user_data)
 601 {
 602         _D("sender_name(%s), interface_name(%s), signal_name(%s)",
 603                 sender_name, interface_name, signal_name);
 604
 605         __eventsystem_event_handler(connection, sender_name,
 606                 object_path, interface_name, signal_name, parameters, user_data);
 607 }
 608
 609 static int __eventsystem_register_event_internal(const char *event_name,
 610                 eventmap_s **em_s, void *user_data)
 611 {
 612         eventmap_s *em = NULL;
 613         char *interface_name = NULL;
 614         char *object_path = NULL;
 615         char *member_name = NULL;
 616         char *sender_name = NULL;
 617         GDBusSignalCallback filter;
 618         GBusType bus_type;
 619         guint subscription_id = 0;
 620         int ret = 0;
 621         int evt_type = ES_TYPE_UNKNOWN;
 622         GDBusConnection *conn = NULL;
 623
 624         if (__check_eventname_validation_system((char *)event_name)) {
 625                 evt_type = ES_TYPE_SYSTEM;
 626         } else if (__check_eventname_validation_user((char *)event_name)) {
 627                 evt_type = ES_TYPE_USER;
 628         } else {
 629                 evt_type = ES_TYPE_UNKNOWN;
 630                 _E("unknown type event(%s)", event_name);
 631                 return ES_R_EINVAL;
 632         }
 633
 634         if (evt_type == ES_TYPE_SYSTEM) {
 635                 interface_name = strdup(SYS_EVENT_NAME_PREFIX);
 636                 if (interface_name == NULL) {
 637                         _E("out of memory");
 638                         ret = ES_R_ENOMEM;
 639                         goto out_1;
 640                 }
 641
 642                 member_name = __get_member_name_from_eventname((char *)event_name);
 643                 if (member_name == NULL) {
 644                         _E("invalid member_name");
 645                         ret = ES_R_ERROR;
 646                         goto out_2;
 647                 }
 648
 649                 if (!g_dbus_is_member_name(member_name)) {
 650                         _E("invalid member name");
 651                         ret = ES_R_EINVAL;
 652                         goto out_3;
 653                 }
 654                 filter = __eventsystem_filter_sysevent_for_internal;
 655         } else {
 656                 interface_name = __get_encoded_interface_name((char *)event_name);
 657                 if (!interface_name) {
 658                         _E("interface_name is NULL");
 659                         ret = ES_R_ERROR;
 660                         goto out_1;
 661                 }
 662                 if (!g_dbus_is_interface_name(interface_name)) {
 663                         _E("invalid interface_name(%s)", interface_name);
 664                         ret = ES_R_EINVAL;
 665                         goto out_2;
 666                 }
 667                 member_name = strdup(EVENT_SYSTEM_MEMBER);
 668                 if (!member_name) {
 669                         _E("out_of_memory");
 670                         ret = ES_R_ERROR;
 671                         goto out_2;
 672                 }
 673                 filter = __eventsystem_filter_userevent_for_internal;
 674         }
 675
 676         object_path = __get_object_path(interface_name);
 677         if (!object_path) {
 678                 _E("object_path is NULL");
 679                 ret = ES_R_ERROR;
 680                 goto out_3;
 681         }
 682         sender_name = NULL;
 683
 684         bus_type = G_BUS_TYPE_SYSTEM;
 685
 686         if (__get_gdbus_shared_connection(&conn, bus_type, evt_type) < 0) {
 687                 _E("getting gdbus-connetion error");
 688                 goto out_4;
 689         }
 690
 691         subscription_id = g_dbus_connection_signal_subscribe(conn,
 692                 sender_name, /* sender */
 693                 interface_name,
 694                 member_name, /* member */
 695                 object_path, /* object_path */
 696                 NULL, /* arg0 */
 697                 G_DBUS_SIGNAL_FLAGS_NONE,
 698                 filter,
 699                 user_data,
 700                 NULL); /* user_data_free_func */
 701
 702         _D("event_name(%s), interface_name(%s)", event_name, interface_name);
 703         _D("member_name(%s), subscription_id(%d), bus_type(%d)",
 704                 member_name, subscription_id, bus_type);
 705
 706         if (subscription_id != 0) {
 707                 em = calloc(1, sizeof(eventmap_s));
 708                 if (!em) {
 709                         _E("memory alloc failed");
 710                         ret = ES_R_ENOMEM;
 711                 } else {
 712                         em->interface_name = strdup(interface_name);
 713                         em->member_name = strdup(member_name);
 714                         em->event_name = strdup(event_name);
 715                         em->bus_type = bus_type;
 716                         em->reg_id = subscription_id;
 717                         em->event_type = evt_type;
 718
 719                         if (!em->interface_name || !em->member_name || !em->event_name) {
 720                                 _E("out_of_memory");
 721                                 FREE_AND_NULL(em->interface_name);
 722                                 FREE_AND_NULL(em->member_name);
 723                                 FREE_AND_NULL(em->event_name);
 724                                 FREE_AND_NULL(em);
 725                                 ret = ES_R_ENOMEM;
 726                                 goto out_4;
 727                         }
 728
 729                         *em_s = em;
 730                         ret = ES_R_OK;
 731                 }
 732         } else {
 733                 _D("dbus subscribe: error(%d), event(%s)", subscription_id, event_name);
 734                 ret = ES_R_ERROR;
 735         }
 736
 737 out_4:
 738         FREE_AND_NULL(object_path);
 739 out_3:
 740         FREE_AND_NULL(member_name);
 741 out_2:
 742         FREE_AND_NULL(interface_name);
 743 out_1:
 744         if (conn) {
 745                 g_object_unref(conn);
 746         }
 747
 748         return ret;
 749 }
 750
 751 /**
 752  * function : register the event
 753  */
 754 int eventsystem_register_event(const char *event_name, unsigned int *reg_id,
 755                 eventsystem_handler callback, void *user_data)
 756 {
 757         eventmap_s *em = NULL;
 758         int ret = ES_R_ERROR;
 759
 760         retvm_if(!g_dbus_is_interface_name(event_name), ES_R_EINVAL,
 761                 "Invalid argument : event_name(%s)", event_name);
 762         retvm_if(!reg_id, ES_R_EINVAL, "Invalid argument : reg_id");
 763         retvm_if(!callback, ES_R_EINVAL, "Invalid argument : callback");
 764
 765         if (!_initialized) {
 766                 __initialize();
 767         }
 768
 769         ret = __eventsystem_register_event_internal(event_name, &em, user_data);
 770
 771         if (ret == ES_R_OK && em) {
 772                 em->ep_cb = callback;
 773                 system_event_list = g_list_append(system_event_list, em);
 774                 *reg_id = em->reg_id;
 775                 ret = ES_R_OK;
 776         } else {
 777                 _E("error, ret(%d), em(%s)", ret, em);
 778         }
 779
 780         return ret;
 781 }
 782
 783 /**
 784  * function : unregister the event
 785  */
 786 int eventsystem_unregister_event(unsigned int reg_id)
 787 {
 788         eventmap_s em;
 789         eventmap_s *em_data = NULL;
 790         GBusType bus_type;
 791         GList *cb_list = NULL;
 792         GDBusConnection *conn = NULL;
 793         eventsystem_event_type evt_type;
 794
 795         retvm_if(reg_id == 0, ES_R_EINVAL, "Invalid argument : reg_id");
 796
 797         if (!_initialized) {
 798                 __initialize();
 799         }
 800
 801         em.reg_id = reg_id;
 802         cb_list = g_list_find_custom(system_event_list, &em,
 803                 (GCompareFunc)__event_compare_reg_id_cb);
 804         if (cb_list) {
 805                 em_data = (eventmap_s *)cb_list->data;
 806
 807                 bus_type = em_data->bus_type;
 808                 evt_type = em_data->event_type;
 809
 810                 _D("unsubscribe: reg_id(%d), bus_type(%d)", reg_id, bus_type);
 811
 812                 if (__get_gdbus_shared_connection(&conn, bus_type, evt_type) < 0) {
 813                         _E("getting gdbus-connetion error");
 814                         return ES_R_ERROR;
 815                 }
 816                 g_dbus_connection_signal_unsubscribe(conn, reg_id);
 817
 818                 system_event_list = g_list_remove(system_event_list, cb_list->data);
 819
 820                 FREE_AND_NULL(em_data->interface_name);
 821                 FREE_AND_NULL(em_data->member_name);
 822                 FREE_AND_NULL(em_data->event_name);
 823                 FREE_AND_NULL(em_data);
 824                 g_object_unref(conn);
 825         }
 826
 827         return ES_R_OK;
 828 }
 829
 830 static int __eventsystem_send_event(GDBusConnection *conn, eventinfo_s *evti, bundle *data)
 831 {
 832         GError *error = NULL;
 833         GVariant *param = NULL;
 834         gboolean ret;
 835
 836         bundle_raw *raw = NULL;
 837         bundle *buf = data;
 838         int len;
 839
 840         bundle_encode(buf, &raw, &len);
 841
 842         param = g_variant_new("(us)", len, raw);
 843         ret = g_dbus_connection_emit_signal(conn,
 844                 evti->destination_name,
 845                 evti->object_path,
 846                 evti->interface_name,
 847                 evti->member_name,
 848                 param,
 849                 &error);
 850
 851         _D("interface_name(%s)", evti->interface_name);
 852         _D("object_path(%s)", evti->object_path);
 853         _D("member_name(%s)", evti->member_name);
 854
 855         bundle_free_encoded_rawdata(&raw);
 856
 857         if (ret == FALSE) {
 858                 _E("Unable to connect to dbus: %s", error->message);
 859                 g_error_free(error);
 860                 return ES_R_ERROR;
 861         }
 862
 863         return ES_R_OK;
 864 }
 865
 866 static void __eventsystem_free_trusted_list(gpointer data)
 867 {
 868         char *name = (char *)data;
 869
 870         FREE_AND_NULL(name);
 871 }
 872
 873 static int __eventsystem_send_trusted_event(GDBusConnection *conn, eventinfo_s *evti,
 874                 bundle *data, GList *dest_list)
 875 {
 876         GList *tmp_list = NULL;
 877         int ret = 0;
 878
 879         if (dest_list) {
 880                 tmp_list = g_list_first(dest_list);
 881
 882                 while (tmp_list != NULL) {
 883                         char *dest_name = (char *)tmp_list->data;
 884                         if (dest_name && dest_name[0] != '\0') {
 885                                 _D("dest_name(%s)", dest_name);
 886                                 evti->destination_name = dest_name;
 887                                 ret = __eventsystem_send_event(conn, evti, data);
 888                                 if (ret != ES_R_OK) {
 889                                         _E("send error");
 890                                         ret = ES_R_ERROR;
 891                                         break;
 892                                 }
 893                         }
 894                         tmp_list = g_list_next(tmp_list);
 895                 }
 896                 g_list_free_full(dest_list, __eventsystem_free_trusted_list);
 897         } else {
 898                 _E("dest_list is null");
 899         }
 900
 901         return ES_R_OK;
 902 }
 903
 904 /**
 905  * function : send the user-event
 906  */
 907 int eventsystem_send_user_event(const char *event_name, bundle *data, bool is_trusted)
 908 {
 909         int ret = 0;
 910
 911         /* check validation */
 912         retvm_if(!event_name, ES_R_EINVAL, "Invalid argument : event_name is NULL");
 913         retvm_if(!data, ES_R_EINVAL, "Invalid argument : data is NULL");
 914         retvm_if(!__check_eventname_validation_user((char *)event_name), ES_R_EINVAL,
 915                 "Invalid argument : event_name(%s)", event_name);
 916
 917         if (!__check_validation_user_defined_name(event_name)) {
 918                 _E("Invalid event name(%s)", event_name);
 919                 return ES_R_EINVAL;
 920         }
 921
 922         eventinfo_s *evti = NULL;
 923         evti = calloc(1, sizeof(eventinfo_s));
 924         if (!evti) {
 925                 _E("memory alloc failed");
 926                 return ES_R_ENOMEM;
 927         }
 928         evti->event_name = strdup(event_name);
 929         if (!evti->event_name) {
 930                 _E("memory alloc failed");
 931                 ret = ES_R_ENOMEM;
 932                 goto out_1;
 933         }
 934
 935         evti->interface_name = __get_encoded_interface_name(evti->event_name);
 936         if (!evti->interface_name) {
 937                 _E("interface_name is NULL");
 938                 ret = ES_R_ERROR;
 939                 goto out_2;
 940         }
 941         evti->member_name = strdup(EVENT_SYSTEM_MEMBER);
 942         if (!evti->member_name) {
 943                 _E("memory alloc failed");
 944                 ret = ES_R_ENOMEM;
 945                 goto out_3;
 946         }
 947
 948         evti->object_path = __get_object_path(evti->interface_name);
 949         if (!evti->object_path) {
 950                 _E("object_path is NULL");
 951                 ret = ES_R_ERROR;
 952                 goto out_4;
 953         }
 954
 955         evti->destination_name = NULL;
 956         evti->is_user_event = true;
 957
 958         GDBusConnection *conn = NULL;
 959         if (__get_gdbus_shared_connection(&conn, G_BUS_TYPE_SESSION, ES_TYPE_USER) == ES_R_OK) {
 960                 if (is_trusted) {
 961                         GList *dest_list = NULL;
 962                         ret = __eventsystem_requet_destination_list(evti->event_name, &dest_list);
 963                         if (ret < 0) {
 964                                 _E("failed to get dest list");
 965                                 ret = ES_R_ERROR;
 966                         } else {
 967                                 ret = __eventsystem_send_trusted_event(conn, evti,
 968                                         data, dest_list);
 969                         }
 970                 } else {
 971                         ret = __eventsystem_send_event(conn, evti, data);
 972                 }
 973         } else {
 974                 _E("getting gdbus-connetion error");
 975                 ret = ES_R_ERROR;
 976         }
 977
 978         if (conn) {
 979                 g_object_unref(conn);
 980         }
 981         FREE_AND_NULL(evti->object_path);
 982 out_4:
 983         FREE_AND_NULL(evti->member_name);
 984 out_3:
 985         FREE_AND_NULL(evti->interface_name);
 986 out_2:
 987         FREE_AND_NULL(evti->event_name);
 988 out_1:
 989         FREE_AND_NULL(evti);
 990
 991         return ret;
 992 }
 993
 994 /**
 995  * function : send the system-event
 996  */
 997 int eventsystem_send_system_event(const char *event_name, bundle *data)
 998 {
 999         int ret = 0;
1000
1001         pthread_mutex_lock(&send_sync_lock);
1002
1003         /* check validation */
1004         tryvm_if(!event_name, ret = ES_R_EINVAL, "Invalid argument : event_name is NULL");
1005         tryvm_if(!data, ret = ES_R_EINVAL, "Invalid argument : data is NULL");
1006         tryvm_if(!__check_eventname_validation_system((char *)event_name), ret = ES_R_EINVAL,
1007                 "Invalid argument : event_name(%s)", event_name);
1008         tryvm_if(!g_dbus_is_interface_name(event_name), ret = ES_R_EINVAL,
1009                 "Invalid argument : event_name(%s)", event_name);
1010
1011         _D("event_name(%s)", event_name);
1012
1013         eventinfo_s *evti = NULL;
1014         evti = calloc(1, sizeof(eventinfo_s));
1015         if (!evti) {
1016                 _E("memory alloc failed");
1017                 pthread_mutex_unlock(&send_sync_lock);
1018                 return ES_R_ENOMEM;
1019         }
1020         evti->event_name = strdup(event_name);
1021         if (!evti->event_name) {
1022                 _E("out_of_memory");
1023                 ret = ES_R_ENOMEM;
1024                 goto out_1;
1025         }
1026         evti->interface_name = strdup(SYS_EVENT_NAME_PREFIX);
1027         if (!evti->interface_name) {
1028                 _E("out of memory");
1029                 ret = ES_R_ENOMEM;
1030                 goto out_2;
1031         }
1032         evti->member_name = __get_member_name_from_eventname(evti->event_name);
1033         if (!evti->member_name) {
1034                 _E("member_name is NULL");
1035                 ret = ES_R_ERROR;
1036                 goto out_3;
1037         }
1038         if (!g_dbus_is_member_name(evti->member_name)) {
1039                 _E("Invalid member_name(%s)", evti->member_name);
1040                 ret = ES_R_EINVAL;
1041                 goto out_4;
1042         }
1043         evti->object_path = __get_object_path(evti->interface_name);
1044         if (!evti->object_path) {
1045                 _E("object_path is NULL");
1046                 ret = ES_R_ERROR;
1047                 goto out_4;
1048         }
1049         evti->destination_name = NULL;
1050         evti->is_user_event = false;
1051
1052         GDBusConnection *conn = NULL;
1053         if (__get_gdbus_shared_connection(&conn, G_BUS_TYPE_SYSTEM, ES_TYPE_SYSTEM) == ES_R_OK) {
1054                 ret = __eventsystem_send_event(conn, evti, data);
1055         } else {
1056                 _E("getting gdbus-connection error");
1057                 ret = ES_R_ERROR;
1058         }
1059
1060         if (conn) {
1061                 g_object_unref(conn);
1062         }
1063         FREE_AND_NULL(evti->object_path);
1064 out_4:
1065         FREE_AND_NULL(evti->member_name);
1066 out_3:
1067         FREE_AND_NULL(evti->interface_name);
1068 out_2:
1069         FREE_AND_NULL(evti->event_name);
1070 out_1:
1071         FREE_AND_NULL(evti);
1072
1073 catch:
1074         pthread_mutex_unlock(&send_sync_lock);
1075
1076         return ret;
1077 }
1078
1079 /**
1080  * function : request sending the event
1081  */
1082 int eventsystem_request_sending_system_event(const char *event_name, bundle *data)
1083 {
1084         int ret = 0;
1085         GDBusConnection *conn = NULL;
1086         GError *error = NULL;
1087         GDBusProxy *proxy = NULL;
1088         GVariant *param = NULL;
1089         GVariant *value = NULL;
1090         gint result = 0;
1091         bundle_raw *raw = NULL;
1092         int len = 0;
1093
1094         _D("event_name(%s)", event_name);
1095
1096         if (!_initialized) {
1097                 __initialize();
1098         }
1099
1100         if (__get_gdbus_shared_connection(&conn, G_BUS_TYPE_SYSTEM, ES_TYPE_SYSTEM) < 0) {
1101                 _E("getting gdbus-connetion error");
1102                 ret = ES_R_ERROR;
1103                 goto out_1;
1104         }
1105
1106         proxy = g_dbus_proxy_new_sync(conn,
1107                 G_DBUS_PROXY_FLAGS_NONE, NULL,
1108                 ESD_BUS_NAME, ESD_OBJECT_PATH, ESD_INTERFACE_NAME,
1109                 NULL, &error);
1110         if (proxy == NULL) {
1111                 _E("failed to create new proxy, error(%s)", error->message);
1112                 g_error_free(error);
1113                 ret = ES_R_ERROR;
1114                 goto out_1;
1115         }
1116
1117         bundle_encode(data, &raw, &len);
1118
1119         param = g_variant_new("(ssi)", event_name, raw, len);
1120         value = g_dbus_proxy_call_sync(proxy, "RequestSendingEvent", param,
1121                 G_DBUS_CALL_FLAGS_NONE, -1, NULL, &error);
1122         if (error != NULL) {
1123                 _E("proxy call sync error(%s)", error->message);
1124                 g_error_free(error);
1125                 ret = ES_R_ERROR;
1126                 goto out_2;
1127         }
1128
1129         g_variant_get(value, "(i)", &result);
1130
1131         _D("result(%d)", result);
1132
1133         ret = ES_R_OK;
1134
1135 out_2:
1136         g_variant_unref(value);
1137 out_1:
1138         if (conn) {
1139                 g_object_unref(conn);
1140         }
1141
1142         return ret;
1143 }
1144
1145 static int __eventsystem_check_sender_validation(int sender_pid, const char *event_name,
1146                 char **sender_id)
1147 {
1148         int ret = ES_R_EINVAL;
1149         GDBusConnection *conn = NULL;
1150         GError *error = NULL;
1151         GDBusProxy *proxy = NULL;
1152         GVariant *param = NULL;
1153         GVariant *value = NULL;
1154         gint result = 0;
1155
1156         if (!_initialized) {
1157                 __initialize();
1158         }
1159
1160         if (__get_gdbus_shared_connection(&conn, G_BUS_TYPE_SYSTEM, ES_TYPE_SYSTEM) < 0) {
1161                 _E("getting gdbus-connetion error");
1162                 ret = ES_R_ERROR;
1163                 goto out_1;
1164         }
1165
1166         proxy = g_dbus_proxy_new_sync(conn,
1167                 G_DBUS_PROXY_FLAGS_NONE, NULL,
1168                 ESD_BUS_NAME, ESD_OBJECT_PATH, ESD_INTERFACE_NAME,
1169                 NULL, &error);
1170         if (proxy == NULL) {
1171                 _E("failed to create new proxy, error(%s)", error->message);
1172                 g_error_free(error);
1173                 ret = ES_R_ERROR;
1174                 goto out_1;
1175         }
1176
1177         param = g_variant_new("(is)", sender_pid, event_name);
1178         value = g_dbus_proxy_call_sync(proxy, "CheckSenderValidation", param,
1179                 G_DBUS_CALL_FLAGS_NONE, -1, NULL, &error);
1180         if (error != NULL) {
1181                 _E("proxy call sync error(%s)", error->message);
1182                 g_error_free(error);
1183                 ret = ES_R_ERROR;
1184                 goto out_2;
1185         }
1186
1187         g_variant_get(value, "(is)", &result, sender_id);
1188
1189         _D("result(%d)", result);
1190
1191         if (result == 1) {
1192                 ret = ES_R_OK;
1193         }
1194 out_2:
1195         g_variant_unref(value);
1196 out_1:
1197         if (conn) {
1198                 g_object_unref(conn);
1199         }
1200
1201         return ret;
1202 }
1203
1204 static int __eventsystem_check_user_send_validation(const char *event_name)
1205 {
1206         int ret = ES_R_EINVAL;
1207         GDBusConnection *conn = NULL;
1208         GError *error = NULL;
1209         GDBusProxy *proxy = NULL;
1210         GVariant *param = NULL;
1211         GVariant *value = NULL;
1212         gint result = 0;
1213
1214         if (!_initialized) {
1215                 __initialize();
1216         }
1217
1218         if (__get_gdbus_shared_connection(&conn, G_BUS_TYPE_SYSTEM, ES_TYPE_SYSTEM) < 0) {
1219                 _E("getting gdbus-connetion error");
1220                 ret = ES_R_ERROR;
1221                 goto out_1;
1222         }
1223
1224         proxy = g_dbus_proxy_new_sync(conn,
1225                 G_DBUS_PROXY_FLAGS_NONE, NULL,
1226                 ESD_BUS_NAME, ESD_OBJECT_PATH, ESD_INTERFACE_NAME,
1227                 NULL, &error);
1228         if (proxy == NULL) {
1229                 _E("failed to create new proxy, error(%s)", error->message);
1230                 g_error_free(error);
1231                 ret = ES_R_ERROR;
1232                 goto out_1;
1233         }
1234
1235         param = g_variant_new("(s)", event_name);
1236         value = g_dbus_proxy_call_sync(proxy, "CheckUserSendValidation", param,
1237                 G_DBUS_CALL_FLAGS_NONE, -1, NULL, &error);
1238         if (error != NULL) {
1239                 _E("proxy call sync error(%s)", error->message);
1240                 g_error_free(error);
1241                 ret = ES_R_ERROR;
1242                 goto out_2;
1243         }
1244
1245         g_variant_get(value, "(i)", &result);
1246
1247         _D("result(%d)", result);
1248
1249         if (result == 1) {
1250                 ret = ES_R_OK;
1251         }
1252 out_2:
1253         g_variant_unref(value);
1254 out_1:
1255         if (conn) {
1256                 g_object_unref(conn);
1257         }
1258
1259         return ret;
1260 }
1261
1262 static int __eventsystem_check_privilege_validation(const char *event_name)
1263 {
1264         int ret = ES_R_ENOTPERMITTED;
1265         GDBusConnection *conn = NULL;
1266         GError *error = NULL;
1267         GDBusProxy *proxy = NULL;
1268         GVariant *param = NULL;
1269         GVariant *value = NULL;
1270         gint result = 0;
1271
1272         if (!_initialized) {
1273                 __initialize();
1274         }
1275
1276         if (__get_gdbus_shared_connection(&conn, G_BUS_TYPE_SYSTEM, ES_TYPE_SYSTEM) < 0) {
1277                 _E("getting gdbus-connetion error");
1278                 ret = ES_R_ERROR;
1279                 goto out_1;
1280         }
1281
1282         proxy = g_dbus_proxy_new_sync(conn,
1283                 G_DBUS_PROXY_FLAGS_NONE, NULL,
1284                 ESD_BUS_NAME, ESD_OBJECT_PATH, ESD_INTERFACE_NAME,
1285                 NULL, &error);
1286         if (proxy == NULL) {
1287                 _E("failed to create new proxy, error(%s)", error->message);
1288                 g_error_free(error);
1289                 ret = ES_R_ERROR;
1290                 goto out_1;
1291         }
1292
1293         param = g_variant_new("(s)", event_name);
1294         value = g_dbus_proxy_call_sync(proxy, "CheckPrivilegeValidation", param,
1295                 G_DBUS_CALL_FLAGS_NONE, -1, NULL, &error);
1296         if (error != NULL) {
1297                 _E("proxy call sync error(%s)", error->message);
1298                 g_error_free(error);
1299                 ret = ES_R_ERROR;
1300                 goto out_2;
1301         }
1302
1303         g_variant_get(value, "(i)", &result);
1304
1305         _D("result(%d)", result);
1306
1307         if (result == 1) {
1308                 ret = ES_R_OK;
1309         }
1310 out_2:
1311         g_variant_unref(value);
1312 out_1:
1313         if (conn) {
1314                 g_object_unref(conn);
1315         }
1316
1317         return ret;
1318 }
1319
1320 static int __eventsystem_setup_trusted_peer(const char *event_name, const char *dest_bus_name)
1321 {
1322         int ret = ES_R_ERROR;
1323         GDBusConnection *conn = NULL;
1324         GError *error = NULL;
1325         GDBusProxy *proxy = NULL;
1326         GVariant *param = NULL;
1327         GVariant *value = NULL;
1328         gint result = 0;
1329
1330         if (!_initialized) {
1331                 __initialize();
1332         }
1333
1334         if (__get_gdbus_shared_connection(&conn, G_BUS_TYPE_SYSTEM, ES_TYPE_SYSTEM) < 0) {
1335                 _E("getting gdbus-connetion error");
1336                 ret = ES_R_ERROR;
1337                 goto out_1;
1338         }
1339
1340         proxy = g_dbus_proxy_new_sync(conn,
1341                 G_DBUS_PROXY_FLAGS_NONE, NULL,
1342                 ESD_BUS_NAME, ESD_OBJECT_PATH, ESD_INTERFACE_NAME,
1343                 NULL, &error);
1344         if (proxy == NULL) {
1345                 _E("failed to create new proxy, error(%s)", error->message);
1346                 g_error_free(error);
1347                 ret = ES_R_ERROR;
1348                 goto out_1;
1349         }
1350
1351         param = g_variant_new("(ss)", event_name, dest_bus_name);
1352
1353         value = g_dbus_proxy_call_sync(proxy, "SetupTrustedPeer", param,
1354                 G_DBUS_CALL_FLAGS_NONE, -1, NULL, &error);
1355         if (error != NULL) {
1356                 _E("proxy call sync error(%s)", error->message);
1357                 g_error_free(error);
1358                 ret = ES_R_ERROR;
1359                 goto out_2;
1360         }
1361
1362         g_variant_get(value, "(i)", &result);
1363
1364         _D("result(%d)", result);
1365
1366         if (result == 1) {
1367                 ret = ES_R_OK;
1368         }
1369 out_2:
1370         g_variant_unref(value);
1371 out_1:
1372         if (conn) {
1373                 g_object_unref(conn);
1374         }
1375
1376         return ret;
1377 }
1378
1379 static int __eventsystem_requet_destination_list(const char *event_name, GList **dest_list)
1380 {
1381         int ret = ES_R_ERROR;
1382         GDBusConnection *conn = NULL;
1383         GError *error = NULL;
1384         GDBusProxy *proxy = NULL;
1385         GVariant *param = NULL;
1386         GVariant *value = NULL;
1387         GVariantIter *iter;
1388         gchar *str;
1389         char *dest_name = NULL;
1390         gint result = 0;
1391
1392         if (!_initialized) {
1393                 __initialize();
1394         }
1395
1396         if (__get_gdbus_shared_connection(&conn, G_BUS_TYPE_SYSTEM, ES_TYPE_SYSTEM) < 0) {
1397                 _E("getting gdbus-connetion error");
1398                 ret = ES_R_ERROR;
1399                 goto out_1;
1400         }
1401
1402         proxy = g_dbus_proxy_new_sync(conn,
1403                 G_DBUS_PROXY_FLAGS_NONE, NULL,
1404                 ESD_BUS_NAME, ESD_OBJECT_PATH, ESD_INTERFACE_NAME,
1405                 NULL, &error);
1406         if (proxy == NULL) {
1407                 _E("failed to create new proxy, error(%s)", error->message);
1408                 g_error_free(error);
1409                 ret = ES_R_ERROR;
1410                 goto out_1;
1411         }
1412
1413         param = g_variant_new("(s)", event_name);
1414
1415         value = g_dbus_proxy_call_sync(proxy, "GetTrustedPeerList", param,
1416                 G_DBUS_CALL_FLAGS_NONE, -1, NULL, &error);
1417         if (error != NULL) {
1418                 _E("proxy call sync error(%s)", error->message);
1419                 g_error_free(error);
1420                 ret = ES_R_ERROR;
1421                 goto out_2;
1422         }
1423
1424         g_variant_get(value, "(ias)", &result, &iter);
1425
1426         _D("result(%d)", result);
1427
1428         if (result == 1) {
1429                 ret = ES_R_OK;
1430                 while (g_variant_iter_loop(iter, "s", &str)) {
1431                         dest_name = strdup((char *)str);
1432                         if (dest_name) {
1433                                 _D("dest name(%s)", str);
1434                                 *dest_list = g_list_append(*dest_list, dest_name);
1435                         } else {
1436                                 _E("out of memory");
1437                                 ret = ES_R_ENOMEM;
1438                                 break;
1439                         }
1440                 }
1441         }
1442         g_variant_iter_free(iter);
1443
1444 out_2:
1445         g_variant_unref(value);
1446 out_1:
1447         if (conn) {
1448                 g_object_unref(conn);
1449         }
1450
1451         return ret;
1452 }
1453
1454 #ifdef APPFW_EVENT_SYSTEM_EARLIER_FEATURE
1455 static int __eventsystem_request_earlier_data(const char *event_name,
1456                 eventsystem_cb callback, void *user_data)
1457 {
1458         int ret = 0;
1459         GDBusConnection *conn = NULL;
1460         GError *error = NULL;
1461         GDBusProxy *proxy = NULL;
1462         GVariant *param = NULL;
1463         gint result = 0;
1464         bundle_raw *raw = NULL;
1465         int len = 0;
1466
1467         if (!_initialized) {
1468                 __initialize();
1469         }
1470
1471         if (__get_gdbus_shared_connection(&conn, G_BUS_TYPE_SYSTEM, ES_TYPE_SYSTEM) < 0) {
1472                 _E("getting gdbus-connetion error");
1473                 ret = ES_R_ERROR;
1474                 goto out_1;
1475         }
1476
1477         proxy = g_dbus_proxy_new_sync(conn,
1478                 G_DBUS_PROXY_FLAGS_NONE, NULL,
1479                 ESD_BUS_NAME, ESD_OBJECT_PATH, ESD_INTERFACE_NAME,
1480                 NULL, &error);
1481
1482         if (proxy == NULL) {
1483                 _E("failed to create new proxy, error(%s)", error->message);
1484                 g_error_free(error);
1485                 ret = ES_R_ERROR;
1486                 goto out_1;
1487         }
1488
1489         param = g_variant_new("(s)", event_name);
1490         GVariant *value = g_dbus_proxy_call_sync(proxy, "GetEarlierData", param,
1491                 G_DBUS_CALL_FLAGS_NONE, -1, NULL, &error);
1492         if (error != NULL) {
1493                 _E("proxy call sync error(%s)", error->message);
1494                 g_error_free(error);
1495                 ret = ES_R_ERROR;
1496                 goto out_2;
1497         }
1498
1499         g_variant_get(value, "(iis)", &result, &len, &raw);
1500         g_variant_unref(value);
1501
1502         _D("result(%d), len(%d)", result, len);
1503
1504         if (!result && raw && len > 0) {
1505                 callback(event_name, raw, len, user_data);
1506                 bundle_free_encoded_rawdata(&raw);
1507         }
1508
1509         ret = ES_R_OK;
1510
1511 out_2:
1512         g_variant_unref(value);
1513 out_1:
1514         if (conn) {
1515                 g_object_unref(conn);
1516         }
1517
1518         return ret;
1519 }
1520 #endif
1521
1522 int eventsystem_register_application_event(const char *event_name, unsigned int *reg_id,
1523                 int *event_type, eventsystem_cb callback, void *user_data)
1524 {
1525         eventmap_s *em;
1526         char *interface_name = NULL;
1527         char *object_path = NULL;
1528         char *member_name = NULL;
1529         char *sender_name = NULL;
1530         GDBusSignalCallback filter;
1531         GBusType bus_type;
1532         guint  subscription_id  = 0;
1533         int ret = 0;
1534         GDBusConnection *conn = NULL;
1535
1536         if (!_initialized) {
1537                 __initialize();
1538         }
1539
1540         if (__check_eventname_validation_system((char *)event_name)) {
1541                 if (__eventsystem_check_privilege_validation(event_name) != ES_R_OK) {
1542                         _E("invalid privilege(%s)", event_name);
1543                         return ES_R_ENOTPERMITTED;
1544                 }
1545                 *event_type = ES_TYPE_SYSTEM;
1546         } else if (__check_eventname_validation_user((char *)event_name)) {
1547                 *event_type = ES_TYPE_USER;
1548         } else {
1549                 *event_type = ES_TYPE_UNKNOWN;
1550                 _E("unknown type event(%s)", event_name);
1551                 return ES_R_EINVAL;
1552         }
1553
1554         if (*event_type == ES_TYPE_SYSTEM) {
1555                 interface_name = strdup(SYS_EVENT_NAME_PREFIX);
1556                 if (interface_name == NULL) {
1557                         _E("out of memory");
1558                         return ES_R_ENOMEM;
1559                 }
1560                 if (!g_dbus_is_interface_name(interface_name)) {
1561                         _E("invalid interface_name(%s)", interface_name);
1562                         FREE_AND_NULL(interface_name);
1563                         return ES_R_EINVAL;
1564                 }
1565                 member_name = __get_member_name_from_eventname((char *)event_name);
1566                 if (member_name == NULL) {
1567                         _E("member_name is NULL(%s)", event_name);
1568                         FREE_AND_NULL(interface_name);
1569                         return ES_R_ERROR;
1570                 }
1571                 if (!g_dbus_is_member_name(member_name)) {
1572                         _E("Invalid member_name(%s)", member_name);
1573                         FREE_AND_NULL(interface_name);
1574                         FREE_AND_NULL(member_name);
1575                         return ES_R_ERROR;
1576                 }
1577                 filter = __eventsystem_filter_sysevent_for_application;
1578                 bus_type = G_BUS_TYPE_SYSTEM;
1579         } else {
1580                 interface_name = __get_encoded_interface_name((char *)event_name);
1581                 if (!interface_name) {
1582                         _E("interface_name is NULL");
1583                         return ES_R_ERROR;
1584                 }
1585                 if (!g_dbus_is_interface_name(interface_name)) {
1586                         _E("invalid interface_name(%s)", interface_name);
1587                         FREE_AND_NULL(interface_name);
1588                         return ES_R_EINVAL;
1589                 }
1590                 member_name = strdup(EVENT_SYSTEM_MEMBER);
1591                 if (!member_name) {
1592                         _E("out_of_memory");
1593                         FREE_AND_NULL(interface_name);
1594                         return ES_R_ERROR;
1595                 }
1596                 filter = __eventsystem_filter_userevent_for_application;
1597                 bus_type = G_BUS_TYPE_SESSION;
1598         }
1599
1600         object_path = __get_object_path(interface_name);
1601         if (!object_path) {
1602                 _E("failed get object_path");
1603                 FREE_AND_NULL(interface_name);
1604                 FREE_AND_NULL(member_name);
1605                 return ES_R_ERROR;
1606         }
1607         sender_name = NULL;
1608
1609         _D("interface_name(%s), object_path(%s)", interface_name, object_path);
1610         _D(" member_name(%s), sender_name(%s), type(%d), bus_type(%d)",
1611                 member_name, sender_name, *event_type, bus_type);
1612
1613         if (__get_gdbus_shared_connection(&conn, bus_type, *event_type) < 0) {
1614                 _E("getting gdbus-connetion error");
1615                 FREE_AND_NULL(interface_name);
1616                 FREE_AND_NULL(object_path);
1617                 FREE_AND_NULL(member_name);
1618                 return ES_R_ERROR;
1619         }
1620
1621 #ifdef APPFW_EVENT_SYSTEM_EARLIER_FEATURE
1622         __eventsystem_request_earlier_data(event_name, callback, user_data);
1623 #endif
1624
1625         subscription_id = g_dbus_connection_signal_subscribe(conn,
1626                 sender_name, /* sender */
1627                 interface_name,
1628                 member_name, /* member */
1629                 object_path, /* object_path */
1630                 NULL, /* arg0 */
1631                 G_DBUS_SIGNAL_FLAGS_NONE,
1632                 filter,
1633                 user_data,
1634                 NULL); /* user_data_free_func */
1635
1636         _D("event_name(%s), subscription_id(%d)", event_name, subscription_id);
1637
1638         if (subscription_id != 0) {
1639                 em = calloc(1, sizeof(eventmap_s));
1640                 if (!em) {
1641                         _E("memory alloc failed");
1642                         ret = ES_R_ENOMEM;
1643                 } else {
1644                         em->interface_name = strdup(interface_name);
1645                         em->member_name = strdup(member_name);
1646                         em->event_name = strdup(event_name);
1647                         em->es_cb = callback;
1648                         em->bus_type = bus_type;
1649                         em->reg_id = subscription_id;
1650                         em->event_type = *event_type;
1651
1652                         if (!em->interface_name || !em->member_name ||
1653                                 !em->event_name) {
1654                                 _E("out_of_memory");
1655                                 FREE_AND_NULL(em->interface_name);
1656                                 FREE_AND_NULL(em->member_name);
1657                                 FREE_AND_NULL(em->event_name);
1658                                 FREE_AND_NULL(em);
1659                                 ret = ES_R_ENOMEM;
1660                         } else {
1661                                 system_event_list =
1662                                         g_list_append(system_event_list, em);
1663                                 *reg_id = subscription_id;
1664
1665                                 ret = ES_R_OK;
1666
1667                                 if (em->bus_type == G_BUS_TYPE_SESSION &&
1668                                          em->event_type == ES_TYPE_USER) {
1669                                         if (s_info.own_name_session_bus == NULL) {
1670                                                 _E("session bus is not ready");
1671                                                 ret = ES_R_ERROR;
1672                                         } else {
1673                                                 if (__eventsystem_setup_trusted_peer(event_name,
1674                                                         s_info.own_name_session_bus) < 0) {
1675                                                         _E("failed to setup trusted peer");
1676                                                         ret = ES_R_ERROR;
1677                                                 }
1678                                         }
1679                                 }
1680                         }
1681                 }
1682         } else {
1683                 _E("dbus subscribe: error(%d)", subscription_id);
1684                 ret = ES_R_ERROR;
1685         }
1686
1687         FREE_AND_NULL(interface_name);
1688         FREE_AND_NULL(object_path);
1689         FREE_AND_NULL(member_name);
1690         if (conn) {
1691                 g_object_unref(conn);
1692         }
1693
1694         return ret;
1695 }
1696
1697 int eventsystem_unregister_application_event(unsigned int reg_id)
1698 {
1699         eventmap_s em;
1700         eventmap_s *em_data = NULL;
1701         GBusType bus_type;
1702         GList *cb_list = NULL;
1703         GDBusConnection *conn = NULL;
1704         eventsystem_event_type evt_type;
1705
1706         retvm_if(reg_id == 0, ES_R_EINVAL, "Invalid argument : reg_id");
1707
1708         if (!_initialized) {
1709                 __initialize();
1710         }
1711
1712         em.reg_id = reg_id;
1713         cb_list = g_list_find_custom(system_event_list, &em,
1714                 (GCompareFunc)__event_compare_reg_id_cb);
1715         if (cb_list) {
1716                 em_data = (eventmap_s *)cb_list->data;
1717
1718                 bus_type = em_data->bus_type;
1719                 evt_type = em_data->event_type;
1720
1721                 _D("unsubscribe: reg_id(%d), bus_type(%d)", reg_id, bus_type);
1722
1723                 if (__get_gdbus_shared_connection(&conn, bus_type, evt_type) < 0) {
1724                         _E("getting gdbus-connetion error");
1725                         return ES_R_ERROR;
1726                 }
1727                 g_dbus_connection_signal_unsubscribe(conn, reg_id);
1728
1729                 system_event_list = g_list_remove(system_event_list, cb_list->data);
1730
1731                 FREE_AND_NULL(em_data->interface_name);
1732                 FREE_AND_NULL(em_data->member_name);
1733                 FREE_AND_NULL(em_data->event_name);
1734                 FREE_AND_NULL(em_data);
1735                 g_object_unref(conn);
1736         } else {
1737                 _E("not found matched item");
1738                 return ES_R_ERROR;
1739         }
1740
1741         return ES_R_OK;
1742 }
1743
1744 int eventsystem_application_finalize(void)
1745 {
1746         gpointer key, value;
1747
1748         _D("release all resouces");
1749
1750         if (system_event_list) {
1751                 g_list_free(system_event_list);
1752         }
1753
1754         if (check_tbl) {
1755                 GHashTableIter iter;
1756
1757                 g_hash_table_iter_init(&iter, check_tbl);
1758
1759                 while (g_hash_table_iter_next(&iter, &key, &value)) {
1760                         char *val_item = (char *)value;
1761                         if (val_item) {
1762                                 free(val_item);
1763                         } else {
1764                                 _E("check_tbl, val_item is NULL");
1765                         }
1766                         g_hash_table_iter_remove(&iter);
1767                 }
1768                 g_hash_table_unref(check_tbl);
1769         }
1770
1771         if (filter_tbl) {
1772                 GHashTableIter iter;
1773
1774                 g_hash_table_iter_init(&iter, filter_tbl);
1775
1776                 while (g_hash_table_iter_next(&iter, &key, &value)) {
1777                         char *key_item = (char *)key;
1778                         if (key_item) {
1779                                 free(key_item);
1780                         } else {
1781                                 _E("filter_tbl, key_item is NULL");
1782                         }
1783                         char *val_item = (char *)value;
1784                         if (val_item) {
1785                                 free(val_item);
1786                         } else {
1787                                 _E("filter_tbl, val_item is NULL");
1788                         }
1789                         g_hash_table_iter_remove(&iter);
1790                 }
1791                 g_hash_table_unref(filter_tbl);
1792         }
1793
1794         FREE_AND_NULL(s_info.own_name_system_bus);
1795         FREE_AND_NULL(s_info.own_name_session_bus);
1796
1797         return 0;
1798 }