src/message_port_remote.c

   1 /*
   2  * Copyright (c) 2017 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 #define _GNU_SOURCE
  18
  19 #include <bundle.h>
  20 #include <bundle_internal.h>
  21 #include <aul.h>
  22
  23 #include <sys/socket.h>
  24 #include <stdlib.h>
  25 #include <stdio.h>
  26
  27 #include <glib.h>
  28 #include <gio/gio.h>
  29 #include <gio/gunixfdlist.h>
  30 #include <glib-unix.h>
  31
  32 #include "message_port_log.h"
  33 #include "message_port_common.h"
  34 #include "message_port_remote.h"
  35
  36
  37 #define MAX_PACKAGE_STR_SIZE 512
  38
  39 #define DBUS_RELEASE_NAME_REPLY_RELEASED        1 /* *< Service was released from the given name */
  40 #define DBUS_RELEASE_NAME_REPLY_NON_EXISTENT    2 /* *< The given name does not exist on the bus */
  41 #define DBUS_RELEASE_NAME_REPLY_NOT_OWNER       3 /* *< Service is not an owner of the given name */
  42
  43 #define MAX_RETRY_CNT 10
  44 #define SOCK_PAIR_SENDER 0
  45 #define SOCK_PAIR_RECEIVER 1
  46
  47 static bool _initialized = false;
  48 static GHashTable *__local_port_info;
  49 static GHashTable *__trusted_app_list_hash;
  50 static GHashTable *__callback_info_hash;
  51 static GHashTable *__sender_appid_hash;
  52
  53 typedef struct message_port_pkt {
  54         int remote_port_name_len;
  55         char *remote_port_name;
  56         bool is_bidirection;
  57         bool is_trusted;
  58         int data_len;
  59         unsigned char *data;
  60 } message_port_pkt_s;
  61
  62 typedef struct message_port_callback_info {
  63         message_port_local_port_info_s *local_info;
  64         int local_id;
  65         char *remote_app_id;
  66         GIOChannel *gio_read;
  67         int g_src_id;
  68 } message_port_callback_info_s;
  69
  70 static void __callback_info_free(gpointer data)
  71 {
  72         message_port_callback_info_s *callback_info = (message_port_callback_info_s *)data;
  73         GError *error = NULL;
  74         if (callback_info == NULL)
  75                 return;
  76
  77         if (callback_info->remote_app_id)
  78                 FREE_AND_NULL(callback_info->remote_app_id);
  79
  80         if (callback_info->gio_read != NULL) {
  81                 g_io_channel_shutdown(callback_info->gio_read, TRUE, &error);
  82                 if (error) {
  83                         _LOGE("g_io_channel_shutdown error : %s", error->message);
  84                         g_error_free(error);
  85                 }
  86                 g_io_channel_unref(callback_info->gio_read);
  87                 callback_info->gio_read = NULL;
  88         }
  89
  90         if (callback_info->g_src_id != 0) {
  91                 g_source_remove(callback_info->g_src_id);
  92                 callback_info->g_src_id = 0;
  93         }
  94
  95         FREE_AND_NULL(callback_info);
  96 }
  97
  98 static void __callback_info_free_by_info(message_port_callback_info_s *callback_info)
  99 {
 100         GList *callback_info_list = g_hash_table_lookup(__callback_info_hash, GUINT_TO_POINTER(callback_info->local_id));
 101         GList *find_list;
 102
 103         if (callback_info_list == NULL)
 104                 return;
 105
 106         find_list = g_list_find(callback_info_list, callback_info);
 107         if (find_list == NULL)
 108                 return;
 109
 110         callback_info_list = g_list_remove_link(callback_info_list, find_list);
 111         __callback_info_free(callback_info);
 112         g_list_free(find_list);
 113 }
 114
 115 static void __hash_destroy_callback_info(gpointer data)
 116 {
 117
 118         GList *callback_list = (GList *)data;
 119         if (callback_list != NULL)
 120                 g_list_free_full(callback_list, __callback_info_free);
 121 }
 122
 123 /* LCOV_EXCL_START */
 124 static void __hash_destory_local_value(gpointer data)
 125 {
 126         message_port_local_port_info_s *mli = (message_port_local_port_info_s *)data;
 127         if (mli) {
 128                 if (mli->port_name)
 129                         free(mli->port_name);
 130                 free(mli);
 131         }
 132 }
 133 /* LCOV_EXCL_STOP */
 134
 135 static bool __initialize(void)
 136 {
 137         if (!initialized_common) {
 138                 if (!initialize_common())
 139                         return MESSAGE_PORT_ERROR_IO_ERROR;
 140         }
 141
 142         if (__local_port_info == NULL) {
 143                 __local_port_info = g_hash_table_new_full(g_direct_hash,  g_direct_equal, NULL, __hash_destory_local_value);
 144                 retvm_if(!__local_port_info, false, "fail to create __local_port_info");
 145         }
 146
 147         if (__sender_appid_hash == NULL) {
 148                 __sender_appid_hash = g_hash_table_new_full(g_str_hash, g_str_equal, free, NULL);
 149                 retvm_if(!__sender_appid_hash, false, "fail to create __sender_appid_hash");
 150         }
 151
 152         if (__trusted_app_list_hash == NULL) {
 153                 __trusted_app_list_hash = g_hash_table_new(g_str_hash, g_str_equal);
 154                 retvm_if(!__trusted_app_list_hash, false, "fail to create __trusted_app_list_hash");
 155         }
 156
 157         if (__callback_info_hash == NULL) {
 158                 __callback_info_hash = g_hash_table_new_full(g_direct_hash, g_direct_equal, NULL, __hash_destroy_callback_info);
 159                 retvm_if(!__callback_info_hash, false, "fail to create __callback_info_hash");
 160         }
 161
 162         _initialized = true;
 163
 164         return true;
 165 }
 166
 167 bool is_local_port_registed(const char *local_port, bool trusted, int *local_id, message_port_local_port_info_s **lpi)
 168 {
 169         GHashTableIter iter;
 170         gpointer key, value;
 171
 172         g_hash_table_iter_init(&iter, __local_port_info);
 173         while (g_hash_table_iter_next(&iter, &key, &value)) {
 174                 message_port_local_port_info_s *mi = (message_port_local_port_info_s *)value;
 175
 176                 if ((mi->is_trusted == trusted) && strcmp(mi->port_name, local_port) == 0) {
 177                         *local_id = mi->local_id;
 178                         if (lpi != NULL)
 179                                 *lpi = mi;
 180                         return true;
 181                 }
 182         }
 183         return false;
 184 }
 185
 186 static int __get_sender_pid(GDBusConnection *conn, const char *sender_name)
 187 {
 188         GDBusMessage *msg = NULL;
 189         GDBusMessage *reply = NULL;
 190         GError *err = NULL;
 191         GVariant *body;
 192         int pid = 0;
 193
 194         msg = g_dbus_message_new_method_call("org.freedesktop.DBus", "/org/freedesktop/DBus",
 195                         "org.freedesktop.DBus", "GetConnectionUnixProcessID");
 196         if (!msg) {
 197                 _LOGE("Can't allocate new method call");
 198                 goto out;
 199         }
 200
 201         g_dbus_message_set_body(msg, g_variant_new("(s)", sender_name));
 202         reply = g_dbus_connection_send_message_with_reply_sync(conn, msg,
 203                                                         G_DBUS_SEND_MESSAGE_FLAGS_NONE, -1, NULL, NULL, &err);
 204
 205         if (!reply) {
 206                 if (err != NULL) {
 207                         _LOGE("Failed to get pid [%s]", err->message);
 208                         g_error_free(err);
 209                 }
 210                 goto out;
 211         }
 212
 213         body = g_dbus_message_get_body(reply);
 214         g_variant_get(body, "(u)", &pid);
 215
 216 out:
 217         if (msg)
 218                 g_object_unref(msg);
 219         if (reply)
 220                 g_object_unref(reply);
 221
 222         return pid;
 223 }
 224
 225 static message_port_pkt_s *__message_port_recv_raw(int fd)
 226 {
 227         message_port_pkt_s *pkt = NULL;
 228         unsigned int nb;
 229
 230         pkt = (message_port_pkt_s *)calloc(sizeof(message_port_pkt_s), 1);
 231         if (pkt == NULL) {
 232                 close(fd);
 233                 return NULL;
 234         }
 235
 236         if (read_string_from_socket(fd, (char **)&pkt->remote_port_name, &pkt->remote_port_name_len) != MESSAGE_PORT_ERROR_NONE) {
 237                 LOGE("read socket fail: port_name");
 238                 free(pkt->remote_port_name);
 239                 free(pkt);
 240                 return NULL;
 241         }
 242
 243         if (read_socket(fd, (char *)&pkt->is_bidirection, sizeof(pkt->is_bidirection), &nb) != MESSAGE_PORT_ERROR_NONE) {
 244                 LOGE("read socket fail: is_bidirection");
 245                 free(pkt->remote_port_name);
 246                 free(pkt);
 247                 return NULL;
 248         }
 249
 250         if (read_socket(fd, (char *)&pkt->is_trusted, sizeof(pkt->is_trusted), &nb) != MESSAGE_PORT_ERROR_NONE) {
 251                 LOGE("read socket fail: is_trusted");
 252                 free(pkt->remote_port_name);
 253                 free(pkt);
 254                 return NULL;
 255         }
 256
 257         if (read_string_from_socket(fd, (char **)&pkt->data, &pkt->data_len) != MESSAGE_PORT_ERROR_NONE) {
 258                 LOGE("read socket fail: data");
 259                 if (pkt->data)
 260                         free(pkt->data);
 261                 free(pkt->remote_port_name);
 262                 free(pkt);
 263                 return NULL;
 264         }
 265
 266         return pkt;
 267 }
 268
 269 static gboolean __socket_request_handler(GIOChannel *gio,
 270                 GIOCondition cond,
 271                 gpointer data)
 272 {
 273         int fd = 0;
 274         message_port_callback_info_s *mi;
 275         message_port_pkt_s *pkt;
 276         message_port_local_port_info_s *local_port_info;
 277         bundle *kb = NULL;
 278         GError *error = NULL;
 279
 280         mi = (message_port_callback_info_s *)data;
 281         if (mi == NULL) {
 282
 283                 g_io_channel_shutdown(gio, TRUE, &error);
 284                 if (error) {
 285                         _LOGE("g_io_channel_shutdown error : %s", error->message);
 286                         g_error_free(error);
 287                 }
 288                 g_io_channel_unref(gio);
 289                 return FALSE;
 290         }
 291
 292         local_port_info = mi->local_info;
 293         if (local_port_info == NULL || local_port_info->callback == NULL) {
 294                 _LOGE("Failed to get callback info");
 295                 __callback_info_free_by_info(mi);
 296                 return FALSE;
 297         }
 298
 299         if (cond == G_IO_HUP) {
 300                 _LOGI("socket G_IO_HUP");
 301                 __callback_info_free_by_info(mi);
 302                 return FALSE;
 303         }
 304
 305         if ((fd = g_io_channel_unix_get_fd(gio)) < 0) {
 306                 _LOGE("fail to get fd from io channel");
 307                 __callback_info_free_by_info(mi);
 308                 return FALSE;
 309         }
 310
 311         if ((pkt = __message_port_recv_raw(fd)) == NULL) {
 312                 _LOGE("recv error on SOCKET");
 313                 __callback_info_free_by_info(mi);
 314                 return FALSE;
 315         }
 316
 317         kb = bundle_decode(pkt->data, pkt->data_len);
 318         if (pkt->is_bidirection)
 319                 local_port_info->callback(mi->local_id, mi->remote_app_id,
 320                         pkt->remote_port_name, pkt->is_trusted, kb, local_port_info->user_data);
 321
 322         else
 323                 local_port_info->callback(mi->local_id, mi->remote_app_id,
 324                         NULL, pkt->is_trusted, kb, local_port_info->user_data);
 325
 326         bundle_free(kb);
 327         if (pkt) {
 328                 if (pkt->remote_port_name)
 329                         free(pkt->remote_port_name);
 330                 if (pkt->data)
 331                         free(pkt->data);
 332                 free(pkt);
 333         }
 334
 335         return TRUE;
 336 }
 337
 338 static bool __receive_message(GVariant *parameters, GDBusMethodInvocation *invocation)
 339 {
 340         char *local_port = NULL;
 341         char *local_appid = NULL;
 342         char *remote_appid = NULL;
 343         char *remote_port = NULL;
 344         gboolean local_trusted = false;
 345         gboolean remote_trusted = false;
 346         gboolean bi_dir = false;
 347         int len = 0;
 348
 349         bundle *data = NULL;
 350         bundle_raw *raw = NULL;
 351         message_port_local_port_info_s *mi;
 352         int local_reg_id = 0;
 353         message_port_callback_info_s *callback_info = NULL;
 354         message_port_callback_info_s *head_callback_info;
 355         GList *callback_info_list = NULL;
 356
 357         char buf[1024];
 358         GDBusMessage *msg;
 359         GUnixFDList *fd_list;
 360         int fd_len;
 361         int *returned_fds = NULL;
 362         int fd;
 363         bool ret = false;
 364
 365         g_variant_get(parameters, "(&s&sbb&s&sbu&s)", &local_appid, &local_port, &local_trusted, &bi_dir,
 366                         &remote_appid, &remote_port, &remote_trusted, &len, &raw);
 367
 368         if (!remote_port) {
 369                 _LOGE("Invalid argument : remote_port is NULL");
 370                 goto out;
 371         }
 372         if (!remote_appid) {
 373                 _LOGE("Invalid argument : remote_appid is NULL");
 374                 goto out;
 375         }
 376         if (!is_local_port_registed(remote_port, remote_trusted, &local_reg_id, &mi)) {
 377                 _LOGE("Invalid argument : remote_port:(%s) trusted(%d)", remote_port, remote_trusted);
 378                 goto out;
 379         }
 380         if (!local_appid) {
 381                 _LOGE("Invalid argument : local_appid");
 382                 goto out;
 383         }
 384         if (!local_port) {
 385                 _LOGE("Invalid argument : local_port");
 386                 goto out;
 387         }
 388         if (strcmp(remote_appid, app_id) != 0) {
 389                 _LOGE("Invalid argument : remote_appid (%s)", remote_appid);
 390                 goto out;
 391         }
 392         if (strcmp(remote_port, mi->port_name) != 0) {
 393                 _LOGE("Invalid argument : remote_port (%s)", remote_port);
 394                 goto out;
 395         }
 396         if (!len) {
 397                 _LOGE("Invalid argument : data_len");
 398                 goto out;
 399         }
 400         if (remote_trusted) {
 401                 if (g_hash_table_lookup(__trusted_app_list_hash, (gpointer)local_appid) == NULL) {
 402                         if (!is_preloaded(local_appid, remote_appid)) {
 403                                 int ret = check_certificate(local_appid, remote_appid);
 404                                 if (ret == MESSAGE_PORT_ERROR_NONE)
 405                                         g_hash_table_insert(__trusted_app_list_hash, local_appid, "TRUE");
 406                                 else {
 407                                         _LOGE("The application (%s) is not signed with the same certificate",
 408                                                         local_appid);
 409                                         goto out;
 410                                 }
 411                         }
 412                 }
 413         }
 414
 415         callback_info = (message_port_callback_info_s *)calloc(1, sizeof(message_port_callback_info_s));
 416         if (callback_info == NULL) {
 417                 _LOGE("out of memory");
 418                 goto out;
 419         }
 420
 421         callback_info->local_id = mi->local_id;
 422         callback_info->local_info = mi;
 423         callback_info->remote_app_id = strdup(local_appid);
 424         if (callback_info->remote_app_id == NULL) {
 425                 _LOGE("out of memory");
 426                 goto out;
 427         }
 428
 429         msg = g_dbus_method_invocation_get_message(invocation);
 430         fd_list = g_dbus_message_get_unix_fd_list(msg);
 431
 432         /* When application send message to self fd_list is NULL */
 433         if (fd_list != NULL) {
 434                 returned_fds = g_unix_fd_list_steal_fds(fd_list, &fd_len);
 435                 if (returned_fds == NULL) {
 436                         _LOGE("fail to get fds");
 437                         goto out;
 438                 }
 439                 fd = returned_fds[0];
 440
 441                 LOGI("g_unix_fd_list_get %d fd: [%d]", fd_len, fd);
 442                 if (fd > 0) {
 443
 444                         callback_info->gio_read = g_io_channel_unix_new(fd);
 445                         if (!callback_info->gio_read) {
 446                                 _LOGE("Error is %s\n", strerror_r(errno, buf, sizeof(buf)));
 447                                 goto out;
 448                         }
 449
 450                         callback_info->g_src_id = g_io_add_watch(callback_info->gio_read, G_IO_IN | G_IO_HUP,
 451                                         __socket_request_handler, (gpointer)callback_info);
 452                         if (callback_info->g_src_id == 0) {
 453                                 _LOGE("fail to add watch on socket");
 454                                 goto out;
 455                         }
 456
 457                         callback_info_list = g_hash_table_lookup(__callback_info_hash, GUINT_TO_POINTER(mi->local_id));
 458                         if (callback_info_list == NULL) {
 459                                 head_callback_info = (message_port_callback_info_s *)calloc(1, sizeof(message_port_callback_info_s));
 460                                 if (head_callback_info == NULL) {
 461                                         _LOGE("fail to alloc head_callback_info");
 462                                         goto out;
 463                                 }
 464                                 head_callback_info->local_id = 0;
 465                                 head_callback_info->remote_app_id = NULL;
 466                                 head_callback_info->local_info = NULL;
 467                                 head_callback_info->gio_read = NULL;
 468                                 head_callback_info->g_src_id = 0;
 469                                 callback_info_list = g_list_append(callback_info_list, head_callback_info);
 470                                 callback_info_list = g_list_append(callback_info_list, callback_info);
 471                                 g_hash_table_insert(__callback_info_hash, GUINT_TO_POINTER(mi->local_id), callback_info_list);
 472                         } else {
 473                                 callback_info_list = g_list_append(callback_info_list, callback_info);
 474                         }
 475                 }
 476         }
 477
 478         data = bundle_decode(raw, len);
 479         if (!data) {
 480                 _LOGE("Invalid argument : message");
 481                 goto out;
 482         }
 483
 484         LOGD("call calback %s", local_appid);
 485         if (bi_dir)
 486                 mi->callback(mi->local_id, local_appid, local_port, local_trusted, data, mi->user_data);
 487         else
 488                 mi->callback(mi->local_id, local_appid, NULL, false, data, mi->user_data);
 489         bundle_free(data);
 490
 491         ret = true;
 492 out:
 493         if (ret == false)
 494                 __callback_info_free(callback_info);
 495
 496         if (returned_fds)
 497                 free(returned_fds);
 498
 499         return ret;
 500 }
 501
 502 static void __on_sender_name_appeared(GDBusConnection *connection,
 503                 const gchar     *name,
 504                 const gchar     *name_owner,
 505                 gpointer         user_data)
 506 {
 507         _LOGI("sender name appeared : %s", name);
 508 }
 509
 510 static void __on_sender_name_vanished(GDBusConnection *connection,
 511                 const gchar     *name,
 512                 gpointer         user_data)
 513 {
 514         gboolean remove_result = FALSE;
 515         int *watcher_id = (int *)user_data;
 516         remove_result = g_hash_table_remove(__sender_appid_hash, (gpointer)name);
 517         if (!remove_result)
 518                 _LOGE("Fail to remove sender appid from hash : %s", name);
 519
 520         if (watcher_id) {
 521                 if (*watcher_id > 0)
 522                         g_bus_unwatch_name(*watcher_id);
 523                 else
 524                         LOGE("Invalid watcher_id %d", *watcher_id);
 525                 free(watcher_id);
 526         } else {
 527                 LOGE("watcher_id is NULL");
 528         }
 529 }
 530
 531 static bool __check_sender_validation(GVariant *parameters, const char *sender, GDBusConnection *conn)
 532 {
 533         int ret = 0;
 534         char buffer[MAX_PACKAGE_STR_SIZE] = {0, };
 535         char *local_appid = NULL;
 536         int pid = __get_sender_pid(conn, sender);
 537         int *watcher_id = (int *)calloc(1, sizeof(int));
 538         char *_sender;
 539         retvm_if(!watcher_id, false, "Malloc failed");
 540
 541         ret = aul_app_get_appid_bypid(pid, buffer, sizeof(buffer));
 542         if (ret != AUL_R_OK) {
 543                 _LOGE("Failed to get the sender ID: (%s) (%d)", sender, pid);
 544                 free(watcher_id);
 545                 return false;
 546         }
 547
 548         g_variant_get_child(parameters, 0, "&s", &local_appid);
 549         if (local_appid == NULL) {
 550                 _LOGE("appid is NULL : (%s) (%d)", sender, pid);
 551                 free(watcher_id);
 552                 return false;
 553         }
 554
 555         if (strncmp(buffer, local_appid, MAX_PACKAGE_STR_SIZE) == 0) {
 556                 _LOGD("insert sender !!!!! %s", sender);
 557                 _sender = strdup(sender);
 558                 if (_sender == NULL) {
 559                         _LOGE("out of memory");
 560                         free(watcher_id);
 561                         return false;
 562                 }
 563                 g_hash_table_insert(__sender_appid_hash, (gpointer)_sender, GINT_TO_POINTER(pid));
 564                 *watcher_id = g_bus_watch_name_on_connection(
 565                                         gdbus_conn,
 566                                         sender,
 567                                         G_BUS_NAME_WATCHER_FLAGS_NONE,
 568                                         __on_sender_name_appeared,
 569                                         __on_sender_name_vanished,
 570                                         watcher_id,
 571                                         NULL);
 572         } else {
 573                 free(watcher_id);
 574                 return false;
 575         }
 576         return true;
 577 }
 578
 579 static void __dbus_method_call_handler(GDBusConnection *conn,
 580                                 const gchar *sender, const gchar *object_path,
 581                                 const gchar *iface_name, const gchar *method_name,
 582                                 GVariant *parameters, GDBusMethodInvocation *invocation,
 583                                 gpointer user_data)
 584 {
 585         _LOGI("method_name: %s, sender: %s", method_name, sender);
 586         gpointer sender_pid = g_hash_table_lookup(__sender_appid_hash, sender);
 587         if (sender_pid == NULL) {
 588                 if (!__check_sender_validation(parameters, sender, conn))
 589                         goto out;
 590         }
 591         if (g_strcmp0(method_name, "send_message") == 0)
 592                 __receive_message(parameters, invocation);
 593 out:
 594         g_dbus_method_invocation_return_value(invocation, NULL);
 595 }
 596
 597 static const GDBusInterfaceVTable interface_vtable = {
 598         __dbus_method_call_handler,
 599         NULL,
 600         NULL
 601 };
 602
 603 static int __register_dbus_interface(const char *port_name, bool is_trusted)
 604 {
 605
 606         GDBusNodeInfo *introspection_data = NULL;
 607         int registration_id = 0;
 608
 609         static gchar introspection_prefix[] =
 610                 "<node>"
 611                 "  <interface name='";
 612
 613         static gchar introspection_postfix[] =
 614                 "'>"
 615                 "        <method name='send_message'>"
 616                 "          <arg type='s' name='local_appid' direction='in'/>"
 617                 "          <arg type='s' name='local_port' direction='in'/>"
 618                 "          <arg type='b' name='local_trusted' direction='in'/>"
 619                 "          <arg type='b' name='bi_dir' direction='in'/>"
 620                 "          <arg type='s' name='remote_appid' direction='in'/>"
 621                 "          <arg type='s' name='remote_port' direction='in'/>"
 622                 "          <arg type='b' name='remote_trusted' direction='in'/>"
 623                 "          <arg type='u' name='data_len' direction='in'/>"
 624                 "          <arg type='s' name='data' direction='in'/>"
 625                 "        </method>"
 626                 "  </interface>"
 627                 "</node>";
 628
 629         char *introspection_xml = NULL;
 630         int introspection_xml_len = 0;
 631
 632
 633         int owner_id = 0;
 634         GError *error = NULL;
 635         char *bus_name = NULL;
 636         char *interface_name = NULL;
 637         GVariant *result = NULL;
 638
 639         bus_name = get_encoded_name(app_id, port_name, is_trusted);
 640         if (!bus_name) {
 641                 _LOGE("Fail to get bus name");
 642                 goto out;
 643         }
 644         interface_name = bus_name;
 645
 646         introspection_xml_len = strlen(introspection_prefix) + strlen(interface_name) +
 647                 strlen(introspection_postfix) + 1;
 648
 649         introspection_xml = (char *)calloc(introspection_xml_len, sizeof(char));
 650         if (!introspection_xml) {
 651                 _LOGE("out of memory");
 652                 goto out;
 653         }
 654
 655
 656         result = g_dbus_connection_call_sync(
 657                         gdbus_conn,
 658                         DBUS_SERVICE_DBUS,
 659                         DBUS_PATH_DBUS,
 660                         DBUS_INTERFACE_DBUS,
 661                         "RequestName",
 662                         g_variant_new("(su)", bus_name, G_BUS_NAME_OWNER_FLAGS_NONE),
 663                         G_VARIANT_TYPE("(u)"),
 664                         G_DBUS_CALL_FLAGS_NONE,
 665                         -1,
 666                         NULL,
 667                         &error);
 668         if (error) {
 669                 _LOGE("RequestName fail : %s", error->message);
 670                 g_error_free(error);
 671                 goto out;
 672         }
 673         if (result == NULL) {
 674                 _LOGE("fail to get name NULL");
 675                 goto out;
 676         }
 677         g_variant_get(result, "(u)", &owner_id);
 678         if (owner_id == 0) {
 679                 _LOGE("Acquiring the own name is failed");
 680                 goto out;
 681         }
 682
 683         _LOGD("Acquiring the own name : %d", owner_id);
 684
 685         snprintf(introspection_xml, introspection_xml_len, "%s%s%s", introspection_prefix, interface_name, introspection_postfix);
 686
 687         introspection_data = g_dbus_node_info_new_for_xml(introspection_xml, NULL);
 688         if (!introspection_data) {
 689                 _LOGE("g_dbus_node_info_new_for_xml() is failed.");
 690                 goto out;
 691         }
 692
 693         registration_id = g_dbus_connection_register_object(gdbus_conn,
 694                                                 MESSAGEPORT_OBJECT_PATH, introspection_data->interfaces[0],
 695                                                 &interface_vtable, NULL, NULL, NULL);
 696
 697         _LOGD("registration_id %d", registration_id);
 698
 699         if (registration_id == 0) {
 700                 _LOGE("Failed to g_dbus_connection_register_object");
 701                 goto out;
 702         }
 703
 704 out:
 705         if (introspection_data)
 706                 g_dbus_node_info_unref(introspection_data);
 707         if (introspection_xml)
 708                 free(introspection_xml);
 709         if (bus_name)
 710                 free(bus_name);
 711         if (result)
 712                 g_variant_unref(result);
 713
 714
 715         return registration_id;
 716 }
 717
 718 static bool __message_port_register_port(const int local_id, const char *local_port, bool is_trusted, message_port_message_cb callback, void *user_data)
 719 {
 720         message_port_local_port_info_s *mi = (message_port_local_port_info_s *)calloc(1, sizeof(message_port_local_port_info_s));
 721         retvm_if(!mi, false, "Malloc failed");
 722
 723         mi->callback = callback;
 724         mi->is_trusted = is_trusted;
 725         mi->port_name = strdup(local_port);
 726         if (mi->port_name == NULL) {
 727                 _LOGE("Malloc failed (%s)", local_port);
 728                 free(mi);
 729                 return false;
 730         }
 731         mi->local_id = local_id;
 732         mi->user_data = user_data;
 733
 734         g_hash_table_insert(__local_port_info, GINT_TO_POINTER(mi->local_id), mi);
 735         return true;
 736 }
 737
 738 int get_local_port_info(int id, message_port_local_port_info_s **info)
 739 {
 740         message_port_local_port_info_s *mi = (message_port_local_port_info_s *)g_hash_table_lookup(__local_port_info, GINT_TO_POINTER(id));
 741
 742         if (mi == NULL)
 743                 return MESSAGE_PORT_ERROR_PORT_NOT_FOUND;
 744         *info = mi;
 745
 746         return MESSAGE_PORT_ERROR_NONE;
 747 }
 748
 749 int register_message_port(const char *local_port, bool is_trusted, message_port_message_cb callback, void *user_data)
 750 {
 751         _SECURE_LOGI("local_port : [%s:%s]", local_port, is_trusted ? "trusted" : "non-trusted");
 752
 753         int local_id = 0;
 754         message_port_local_port_info_s *port_info;
 755         if (!_initialized) {
 756                 if (!__initialize())
 757                         return MESSAGE_PORT_ERROR_IO_ERROR;
 758         }
 759
 760         /* Check the message port is already registed */
 761         if (is_local_port_registed(local_port, is_trusted, &local_id, &port_info)) {
 762                 port_info->callback = callback;
 763                 port_info->user_data = user_data;
 764                 return local_id;
 765         }
 766
 767         local_id = __register_dbus_interface(local_port, is_trusted);
 768         if (local_id < 1) {
 769                 _LOGE("register_dbus_interface fail !!");
 770                 return MESSAGE_PORT_ERROR_OUT_OF_MEMORY;
 771         }
 772
 773         if (!__message_port_register_port(local_id, local_port, is_trusted, callback, user_data))
 774                 return MESSAGE_PORT_ERROR_OUT_OF_MEMORY;
 775
 776         return local_id;
 777 }
 778
 779 int unregister_local_port(int local_port_id, bool trusted_port)
 780 {
 781
 782         GVariant *result;
 783         char *bus_name = NULL;
 784         GError *err = NULL;
 785         int ret = 0;
 786         message_port_local_port_info_s *mi;
 787
 788         _LOGI("unregister : %d", local_port_id);
 789
 790         if (!_initialized) {
 791                 if (!__initialize())
 792                         return MESSAGE_PORT_ERROR_IO_ERROR;
 793         }
 794
 795         mi = (message_port_local_port_info_s *)
 796                 g_hash_table_lookup(__local_port_info, GINT_TO_POINTER(local_port_id));
 797         if (mi == NULL)
 798                 return MESSAGE_PORT_ERROR_PORT_NOT_FOUND;
 799
 800         if (mi->is_trusted != trusted_port)
 801                 return MESSAGE_PORT_ERROR_INVALID_PARAMETER;
 802
 803         g_hash_table_remove(__callback_info_hash, GUINT_TO_POINTER(local_port_id));
 804
 805         bus_name = get_encoded_name(app_id, mi->port_name, mi->is_trusted);
 806         if (bus_name == NULL)
 807                 return MESSAGE_PORT_ERROR_OUT_OF_MEMORY;
 808
 809         g_dbus_connection_unregister_object(gdbus_conn, local_port_id);
 810
 811         result = g_dbus_connection_call_sync(
 812                         gdbus_conn,
 813                         DBUS_SERVICE_DBUS,
 814                         DBUS_PATH_DBUS,
 815                         DBUS_INTERFACE_DBUS,
 816                         "ReleaseName",
 817                         g_variant_new("(s)", bus_name),
 818                         G_VARIANT_TYPE("(u)"),
 819                         G_DBUS_CALL_FLAGS_NONE,
 820                         -1,
 821                         NULL,
 822                         &err);
 823
 824         if (bus_name)
 825                 free(bus_name);
 826
 827         if (err) {
 828                 _LOGE("RequestName fail : %s", err->message);
 829                 g_error_free(err);
 830                 return MESSAGE_PORT_ERROR_PORT_NOT_FOUND;
 831         }
 832         g_variant_get(result, "(u)", &ret);
 833
 834         if (result)
 835                 g_variant_unref(result);
 836
 837         if (ret != DBUS_RELEASE_NAME_REPLY_RELEASED) {
 838
 839                 if (ret == DBUS_RELEASE_NAME_REPLY_NON_EXISTENT) {
 840                         _LOGE("Port Not exist");
 841                         return MESSAGE_PORT_ERROR_PORT_NOT_FOUND;
 842                 } else if (ret == DBUS_RELEASE_NAME_REPLY_NOT_OWNER) {
 843                         _LOGE("Try to release not owned name. MESSAGE_PORT_ERROR_INVALID_PARAMETER");
 844                         return MESSAGE_PORT_ERROR_INVALID_PARAMETER;
 845                 }
 846         }
 847
 848         g_hash_table_remove(__local_port_info, GINT_TO_POINTER(local_port_id));
 849
 850         return MESSAGE_PORT_ERROR_NONE;
 851 }