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 typedef struct callback_key_info {
  71         int local_id;
  72         message_port_callback_info_s *callback_info;
  73 } callback_key_info_s;
  74
  75 static void __callback_info_free(gpointer data)
  76 {
  77         message_port_callback_info_s *callback_info = (message_port_callback_info_s *)data;
  78         GError *error = NULL;
  79         if (callback_info == NULL)
  80                 return;
  81
  82         if (callback_info->remote_app_id)
  83                 FREE_AND_NULL(callback_info->remote_app_id);
  84
  85         if (callback_info->local_info) {
  86                 if (callback_info->local_info->port_name)
  87                                 FREE_AND_NULL(callback_info->local_info->port_name);
  88
  89                 FREE_AND_NULL(callback_info->local_info);
  90         }
  91
  92         if (callback_info->gio_read != NULL) {
  93                 g_io_channel_shutdown(callback_info->gio_read, TRUE, &error);
  94                 if (error) {
  95                         _LOGE("g_io_channel_shutdown error : %s", error->message);
  96                         g_error_free(error);
  97                 }
  98                 g_io_channel_unref(callback_info->gio_read);
  99                 callback_info->gio_read = NULL;
 100         }
 101
 102         if (callback_info->g_src_id != 0) {
 103                 g_source_remove(callback_info->g_src_id);
 104                 callback_info->g_src_id = 0;
 105         }
 106
 107         FREE_AND_NULL(callback_info);
 108 }
 109
 110 /* LCOV_EXCL_START */
 111 static void __callback_info_free_by_info(message_port_callback_info_s *callback_info)
 112 {
 113         GList *callback_info_list = g_hash_table_lookup(__callback_info_hash, GUINT_TO_POINTER(callback_info->local_id));
 114         GList *find_list;
 115
 116         if (callback_info_list == NULL)
 117                 return;
 118
 119         find_list = g_list_find(callback_info_list, callback_info);
 120         if (find_list == NULL)
 121                 return;
 122
 123         callback_info_list = g_list_remove_link(callback_info_list, find_list);
 124         __callback_info_free(callback_info);
 125         g_list_free(find_list);
 126 }
 127 /* LCOV_EXCL_STOP */
 128
 129 static void __hash_destroy_callback_info(gpointer data)
 130 {
 131         GList *callback_list = (GList *)data;
 132
 133         if (callback_list != NULL)
 134                 g_list_free_full(callback_list, __callback_info_free);
 135 }
 136
 137 /* LCOV_EXCL_START */
 138 static void __hash_destory_local_value(gpointer data)
 139 {
 140         message_port_local_port_info_s *mli = (message_port_local_port_info_s *)data;
 141         if (mli) {
 142                 if (mli->port_name)
 143                         free(mli->port_name);
 144                 free(mli);
 145         }
 146 }
 147 /* LCOV_EXCL_STOP */
 148
 149 static bool __initialize(void)
 150 {
 151         if (!initialized_common) {
 152                 if (!initialize_common())
 153                         return false;
 154         }
 155
 156         if (__local_port_info == NULL) {
 157                 __local_port_info = g_hash_table_new_full(g_direct_hash,  g_direct_equal, NULL, __hash_destory_local_value);
 158                 retvm_if(!__local_port_info, false, "fail to create __local_port_info");
 159         }
 160
 161         if (__sender_appid_hash == NULL) {
 162                 __sender_appid_hash = g_hash_table_new_full(g_str_hash, g_str_equal, free, free);
 163                 retvm_if(!__sender_appid_hash, false, "fail to create __sender_appid_hash");
 164         }
 165
 166         if (__trusted_app_list_hash == NULL) {
 167                 __trusted_app_list_hash = g_hash_table_new_full(g_str_hash, g_str_equal, free, NULL);
 168                 retvm_if(!__trusted_app_list_hash, false, "fail to create __trusted_app_list_hash");
 169         }
 170
 171         if (__callback_info_hash == NULL) {
 172                 __callback_info_hash = g_hash_table_new_full(g_direct_hash, g_direct_equal, NULL, __hash_destroy_callback_info);
 173                 retvm_if(!__callback_info_hash, false, "fail to create __callback_info_hash");
 174         }
 175
 176         _initialized = true;
 177
 178         return true;
 179 }
 180
 181 bool is_local_port_registed(const char *local_port, bool trusted, int *local_id, message_port_local_port_info_s **lpi)
 182 {
 183         GHashTableIter iter;
 184         gpointer key, value;
 185
 186         if (__local_port_info == NULL) {
 187                 _LOGI("There is no registed local port");
 188                 return false;
 189         }
 190
 191         g_hash_table_iter_init(&iter, __local_port_info);
 192         while (g_hash_table_iter_next(&iter, &key, &value)) {
 193                 message_port_local_port_info_s *mi = (message_port_local_port_info_s *)value;
 194
 195                 if ((mi->is_trusted == trusted) && strcmp(mi->port_name, local_port) == 0) {
 196                         *local_id = mi->local_id;
 197                         if (lpi != NULL)
 198                                 *lpi = mi;
 199                         return true;
 200                 }
 201         }
 202         return false;
 203 }
 204
 205 static int __get_sender_pid(GDBusConnection *conn, const char *sender_name)
 206 {
 207         GDBusMessage *msg = NULL;
 208         GDBusMessage *reply = NULL;
 209         GError *err = NULL;
 210         GVariant *body;
 211         int pid = 0;
 212
 213         msg = g_dbus_message_new_method_call("org.freedesktop.DBus", "/org/freedesktop/DBus",
 214                         "org.freedesktop.DBus", "GetConnectionUnixProcessID");
 215         if (!msg) {
 216                 _LOGE("Can't allocate new method call");
 217                 goto out;
 218         }
 219
 220         g_dbus_message_set_body(msg, g_variant_new("(s)", sender_name));
 221         reply = g_dbus_connection_send_message_with_reply_sync(conn, msg,
 222                                                         G_DBUS_SEND_MESSAGE_FLAGS_NONE, -1, NULL, NULL, &err);
 223
 224         if (!reply) {
 225                 if (err != NULL) {
 226                         _LOGE("Failed to get pid [%s]", err->message);
 227                         g_error_free(err);
 228                 } else {
 229                         _LOGE("Failed to get pid");
 230                 }
 231                 goto out;
 232         }
 233
 234         body = g_dbus_message_get_body(reply);
 235         g_variant_get(body, "(u)", &pid);
 236
 237 out:
 238         if (msg)
 239                 g_object_unref(msg);
 240         if (reply)
 241                 g_object_unref(reply);
 242
 243         return pid;
 244 }
 245
 246 static message_port_pkt_s *__message_port_recv_raw(int fd)
 247 {
 248         message_port_pkt_s *pkt = NULL;
 249         unsigned int nb;
 250
 251         pkt = (message_port_pkt_s *)calloc(sizeof(message_port_pkt_s), 1);
 252         if (pkt == NULL) {
 253                 close(fd);
 254                 return NULL;
 255         }
 256
 257         if (read_string_from_socket(fd, (char **)&pkt->remote_port_name, &pkt->remote_port_name_len) != MESSAGE_PORT_ERROR_NONE) {
 258 /* LCOV_EXCL_START */
 259                 LOGE("read socket fail: port_name");
 260                 free(pkt->remote_port_name);
 261                 free(pkt);
 262                 return NULL;
 263 /* LCOV_EXCL_STOP */
 264         }
 265
 266         if (read_socket(fd, (char *)&pkt->is_bidirection, sizeof(pkt->is_bidirection), &nb) != MESSAGE_PORT_ERROR_NONE) {
 267 /* LCOV_EXCL_START */
 268                 LOGE("read socket fail: is_bidirection");
 269                 free(pkt->remote_port_name);
 270                 free(pkt);
 271                 return NULL;
 272 /* LCOV_EXCL_STOP */
 273         }
 274
 275         if (read_socket(fd, (char *)&pkt->is_trusted, sizeof(pkt->is_trusted), &nb) != MESSAGE_PORT_ERROR_NONE) {
 276 /* LCOV_EXCL_START */
 277                 LOGE("read socket fail: is_trusted");
 278                 free(pkt->remote_port_name);
 279                 free(pkt);
 280                 return NULL;
 281 /* LCOV_EXCL_STOP */
 282         }
 283
 284         if (read_string_from_socket(fd, (char **)&pkt->data, &pkt->data_len) != MESSAGE_PORT_ERROR_NONE) {
 285 /* LCOV_EXCL_START */
 286                 LOGE("read socket fail: data");
 287                 if (pkt->data)
 288                         free(pkt->data);
 289                 free(pkt->remote_port_name);
 290                 free(pkt);
 291                 return NULL;
 292 /* LCOV_EXCL_STOP */
 293         }
 294
 295         return pkt;
 296 }
 297
 298 static bool __validate_callback_info(callback_key_info_s *key_info)
 299 {
 300         GList *cb_list;
 301
 302         cb_list = g_hash_table_lookup(__callback_info_hash,
 303                         GUINT_TO_POINTER(key_info->local_id));
 304         if (cb_list == NULL) {
 305                 _LOGI("local_info : %d is already released", key_info->local_id);
 306                 return false;
 307         }
 308
 309         cb_list = g_list_find(cb_list, key_info->callback_info);
 310         if (cb_list == NULL) {
 311                 _LOGI("local_info : %d is already released", key_info->local_id);
 312                 return false;
 313         }
 314
 315         return true;
 316 }
 317
 318 static bool __validate_local_info(callback_key_info_s *key_info)
 319 {
 320         GList *cb_list;
 321
 322         cb_list = g_hash_table_lookup(__local_port_info,
 323                         GUINT_TO_POINTER(key_info->local_id));
 324         if (cb_list == NULL) {
 325                 _LOGI("local_info : %d is already released", key_info->local_id);
 326                 return false;
 327         }
 328
 329         return true;
 330 }
 331
 332 static gboolean __socket_request_handler(GIOChannel *gio,
 333                 GIOCondition cond,
 334                 gpointer data)
 335 {
 336         int fd = 0;
 337         message_port_callback_info_s *mi = NULL;
 338         callback_key_info_s *key_info;
 339         message_port_pkt_s *pkt = NULL;
 340         message_port_local_port_info_s *local_port_info;
 341         bundle *kb = NULL;
 342         bool ret = true;
 343         bool existed = true;
 344
 345         key_info = (callback_key_info_s *)data;
 346         if (key_info == NULL)
 347                 return FALSE;
 348
 349         message_port_lock_mutex();
 350         if (__validate_callback_info(key_info) == false) {
 351                 ret = FALSE;
 352                 existed = FALSE;
 353                 message_port_unlock_mutex();
 354                 goto out;
 355         }
 356
 357         if (__validate_local_info(key_info) == false) {
 358                 ret = FALSE;
 359                 message_port_unlock_mutex();
 360                 goto out;
 361         }
 362         message_port_unlock_mutex();
 363
 364         mi = key_info->callback_info;
 365
 366         local_port_info = mi->local_info;
 367         if (local_port_info == NULL || local_port_info->callback == NULL) {
 368                 _LOGE("Failed to get callback info");
 369                 ret = FALSE;
 370                 goto out;
 371         }
 372
 373         if (cond == G_IO_HUP) {
 374                 _LOGI("socket G_IO_HUP");
 375                 ret = FALSE;
 376                 goto out;
 377         }
 378
 379         fd = g_io_channel_unix_get_fd(gio);
 380         if (fd < 0) {
 381                 _LOGE("fail to get fd from io channel");
 382                 ret = FALSE;
 383                 goto out;
 384         }
 385
 386         pkt = __message_port_recv_raw(fd);
 387         if (pkt == NULL) {
 388                 _LOGE("recv error on SOCKET");
 389                 ret = FALSE;
 390                 goto out;
 391         }
 392
 393         kb = bundle_decode(pkt->data, pkt->data_len);
 394         if (!kb) {
 395                 _LOGE("Invalid argument : message");
 396                 ret = FALSE;
 397                 goto out;
 398         }
 399
 400         if (pkt->is_bidirection)
 401                 local_port_info->callback(mi->local_id, mi->remote_app_id,
 402                         pkt->remote_port_name, pkt->is_trusted, kb, local_port_info->user_data);
 403         else
 404                 local_port_info->callback(mi->local_id, mi->remote_app_id,
 405                         NULL, pkt->is_trusted, kb, local_port_info->user_data);
 406
 407         bundle_free(kb);
 408
 409 out:
 410         if (pkt) {
 411                 if (pkt->remote_port_name)
 412                         free(pkt->remote_port_name);
 413                 if (pkt->data)
 414                         free(pkt->data);
 415                 free(pkt);
 416         }
 417
 418         if (mi && ret == FALSE && existed == TRUE) {
 419                 message_port_lock_mutex();
 420                 __callback_info_free_by_info(mi);
 421                 message_port_unlock_mutex();
 422         }
 423
 424         return ret;
 425 }
 426
 427
 428 static void __socket_destroy_handler(gpointer data)
 429 {
 430         _LOGI("__socket_destroy_handler");
 431         callback_key_info_s *key_info = (callback_key_info_s *)data;
 432         free(key_info);
 433 }
 434
 435 static callback_key_info_s *__create_callback_key_info(message_port_callback_info_s *callback_info)
 436 {
 437         callback_key_info_s *_key_info = (callback_key_info_s *)
 438                 calloc(1, sizeof(callback_key_info_s));
 439
 440         if (_key_info == NULL) {
 441                 _LOGE("out of memory");
 442                 return NULL;
 443         }
 444
 445         _key_info->local_id = callback_info->local_id;
 446         _key_info->callback_info = callback_info;
 447
 448         return _key_info;
 449 }
 450
 451 static message_port_callback_info_s *__create_callback_info(message_port_local_port_info_s *mi, char *local_appid)
 452 {
 453         message_port_local_port_info_s *local_info = NULL;
 454         message_port_callback_info_s *callback_info = NULL;
 455         bool ret = true;
 456
 457         callback_info = (message_port_callback_info_s *)calloc(1, sizeof(message_port_callback_info_s));
 458         if (callback_info == NULL) {
 459                 _LOGE("out of memory");
 460                 return NULL;
 461         }
 462
 463         local_info = (message_port_local_port_info_s *)calloc(1, sizeof(message_port_local_port_info_s));
 464         if (local_info == NULL) {
 465                 ret = false;
 466                 _LOGE("out of memory");
 467                 goto out;
 468         }
 469
 470         callback_info->local_id = mi->local_id;
 471         callback_info->local_info = local_info;
 472         callback_info->remote_app_id = strdup(local_appid);
 473         if (callback_info->remote_app_id == NULL) {
 474                 ret = false;
 475                 _LOGE("out of memory");
 476                 goto out;
 477         }
 478
 479         local_info->port_name = strdup(mi->port_name);
 480         if (local_info->port_name == NULL) {
 481                 ret = false;
 482                 _LOGE("out of memory");
 483                 goto out;
 484         }
 485
 486         local_info->callback = mi->callback;
 487         local_info->is_trusted = mi->is_trusted;
 488         local_info->local_id = mi->local_id;
 489         local_info->user_data = mi->user_data;
 490
 491 out:
 492         if (ret == false) {
 493                 __callback_info_free(callback_info);
 494                 return NULL;
 495         }
 496
 497         return callback_info;
 498 }
 499
 500 static bool __callback_info_append(message_port_callback_info_s *callback_info)
 501 {
 502         GList *callback_info_list = NULL;
 503         message_port_callback_info_s *head_callback_info;
 504
 505         callback_info_list = g_hash_table_lookup(__callback_info_hash, GUINT_TO_POINTER(callback_info->local_id));
 506         if (callback_info_list == NULL) {
 507                 head_callback_info = (message_port_callback_info_s *)calloc(1, sizeof(message_port_callback_info_s));
 508                 if (head_callback_info == NULL) {
 509                         _LOGE("fail to alloc head_callback_info");
 510                         return false;
 511                 }
 512                 head_callback_info->local_id = 0;
 513                 head_callback_info->remote_app_id = NULL;
 514                 head_callback_info->local_info = NULL;
 515                 head_callback_info->gio_read = NULL;
 516                 head_callback_info->g_src_id = 0;
 517                 callback_info_list = g_list_append(callback_info_list, head_callback_info);
 518                 callback_info_list = g_list_append(callback_info_list, callback_info);
 519                 g_hash_table_insert(__callback_info_hash, GUINT_TO_POINTER(callback_info->local_id), callback_info_list);
 520         } else {
 521                 callback_info_list = g_list_append(callback_info_list, callback_info);
 522         }
 523
 524         return true;
 525 }
 526
 527 static void __callback_info_update_user_data(int local_id, message_port_message_cb callback, void *user_data)
 528 {
 529         GList *callback_info_list;
 530         GList *iter;
 531         message_port_callback_info_s *callback_info;
 532
 533         callback_info_list = g_hash_table_lookup(__callback_info_hash, GUINT_TO_POINTER(local_id));
 534         if (callback_info_list != NULL) {
 535                 for (iter = callback_info_list; iter != NULL; iter = iter->next) {
 536                         callback_info = (message_port_callback_info_s *)iter->data;
 537                         if (callback_info->local_info != NULL) {
 538                                 callback_info->local_info->callback = callback;
 539                                 callback_info->local_info->user_data = user_data;
 540                         }
 541                 }
 542         } else {
 543                 _LOGE("fail to find local_id %d ", local_id);
 544         }
 545 }
 546
 547 static bool __receive_message(GVariant *parameters, GDBusMethodInvocation *invocation)
 548 {
 549         char *local_port = NULL;
 550         char *local_appid = NULL;
 551         char *remote_appid = NULL;
 552         char *remote_port = NULL;
 553         gboolean local_trusted = false;
 554         gboolean remote_trusted = false;
 555         gboolean bi_dir = false;
 556         int len = 0;
 557
 558         bundle *data = NULL;
 559         bundle_raw *raw = NULL;
 560         message_port_local_port_info_s *mi;
 561         int local_reg_id = 0;
 562         message_port_callback_info_s *callback_info = NULL;
 563         callback_key_info_s *key_info;
 564
 565         char buf[1024];
 566         GDBusMessage *msg;
 567         GUnixFDList *fd_list;
 568         int fd_len;
 569         int *returned_fds = NULL;
 570         int fd;
 571         bool ret = false;
 572         char *key_appid;
 573
 574         g_variant_get(parameters, "(&s&sbb&s&sbu&s)", &local_appid, &local_port, &local_trusted, &bi_dir,
 575                         &remote_appid, &remote_port, &remote_trusted, &len, &raw);
 576
 577         if (!remote_port) {
 578                 _LOGE("Invalid argument : remote_port is NULL");
 579                 goto out;
 580         }
 581         if (!remote_appid) {
 582                 _LOGE("Invalid argument : remote_appid is NULL");
 583                 goto out;
 584         }
 585
 586         if (!local_appid) {
 587                 _LOGE("Invalid argument : local_appid");
 588                 goto out;
 589         }
 590
 591         message_port_lock_mutex();
 592         if (!is_local_port_registed(remote_port, remote_trusted, &local_reg_id, &mi)) {
 593                 _LOGE("Invalid argument : remote_port:(%s) trusted(%d)", remote_port, remote_trusted);
 594                 message_port_unlock_mutex();
 595                 goto out;
 596         }
 597
 598         callback_info = __create_callback_info(mi, local_appid);
 599         if (callback_info == NULL) {
 600                 message_port_unlock_mutex();
 601                 goto out;
 602         }
 603         message_port_unlock_mutex();
 604
 605         if (!local_port) {
 606                 _LOGE("Invalid argument : local_port");
 607                 goto out;
 608         }
 609         if (strcmp(remote_appid, app_id) != 0) {
 610                 _LOGE("Invalid argument : remote_appid (%s)", remote_appid);
 611                 goto out;
 612         }
 613         if (strcmp(remote_port, callback_info->local_info->port_name) != 0) {
 614                 _LOGE("Invalid argument : remote_port (%s)", remote_port);
 615                 goto out;
 616         }
 617         if (!len) {
 618                 _LOGE("Invalid argument : data_len");
 619                 goto out;
 620         }
 621         if (remote_trusted) {
 622                 if (g_hash_table_lookup(__trusted_app_list_hash, (gpointer)local_appid) == NULL) {
 623                         if (!is_preloaded(local_appid, remote_appid)) {
 624                                 int ret = check_certificate(local_appid, remote_appid);
 625                                 if (ret == MESSAGE_PORT_ERROR_NONE) {
 626                                         key_appid = strdup(local_appid);
 627                                         if (key_appid)
 628                                                 g_hash_table_insert(__trusted_app_list_hash, key_appid, "TRUE");
 629                                 } else {
 630                                         _LOGE("The application (%s) is not signed with the same certificate",
 631                                                         local_appid);
 632                                         goto out;
 633                                 }
 634                         }
 635                 }
 636         }
 637
 638         data = bundle_decode(raw, len);
 639         if (!data) {
 640                 _LOGE("Invalid argument : message");
 641                 goto out;
 642         }
 643
 644         LOGD("call calback %s", local_appid);
 645         if (bi_dir)
 646                 callback_info->local_info->callback(callback_info->local_info->local_id,
 647                         local_appid, local_port, local_trusted, data, callback_info->local_info->user_data);
 648         else
 649                 callback_info->local_info->callback(callback_info->local_info->local_id,
 650                         local_appid, NULL, false, data, callback_info->local_info->user_data);
 651         bundle_free(data);
 652
 653         ret = true;
 654
 655         msg = g_dbus_method_invocation_get_message(invocation);
 656         fd_list = g_dbus_message_get_unix_fd_list(msg);
 657
 658         /* When application send message to self fd_list is NULL */
 659         if (fd_list != NULL) {
 660                 returned_fds = g_unix_fd_list_steal_fds(fd_list, &fd_len);
 661                 if (returned_fds == NULL) {
 662                         _LOGE("fail to get fds");
 663                         ret = false;
 664                         goto out;
 665                 }
 666                 fd = returned_fds[0];
 667
 668                 LOGI("g_unix_fd_list_get %d fd: [%d]", fd_len, fd);
 669                 if (fd > 0) {
 670                         callback_info->gio_read = g_io_channel_unix_new(fd);
 671                         if (!callback_info->gio_read) {
 672                                 _LOGE("Error is %s\n", strerror_r(errno, buf, sizeof(buf)));
 673                                 ret = false;
 674                                 goto out;
 675                         }
 676
 677                         key_info = __create_callback_key_info(callback_info);
 678                         if (key_info == NULL) {
 679                                 _LOGE("out of memory");
 680                                 ret = false;
 681                                 goto out;
 682                         }
 683
 684                         callback_info->g_src_id = g_io_add_watch_full(
 685                                         callback_info->gio_read,
 686                                         G_PRIORITY_DEFAULT,
 687                                         G_IO_IN | G_IO_HUP,
 688                                         __socket_request_handler,
 689                                         (gpointer)key_info,
 690                                         __socket_destroy_handler);
 691                         if (callback_info->g_src_id == 0) {
 692                                 _LOGE("fail to add watch on socket");
 693                                 free(key_info);
 694                                 ret = false;
 695                                 goto out;
 696                         }
 697
 698                         message_port_lock_mutex();
 699                         if (__callback_info_append(callback_info) == false) {
 700                                 _LOGE("fail to append callback_info");
 701                                 ret = false;
 702                         }
 703                         message_port_unlock_mutex();
 704                 }
 705         }
 706
 707 out:
 708         if (ret == false)
 709                 __callback_info_free(callback_info);
 710
 711         if (returned_fds)
 712                 g_free(returned_fds);
 713
 714         return ret;
 715 }
 716
 717 static void __on_sender_name_appeared(GDBusConnection *connection,
 718                 const gchar     *name,
 719                 const gchar     *name_owner,
 720                 gpointer         user_data)
 721 {
 722         _LOGI("sender name appeared : %s", name);
 723 }
 724
 725 static void __on_sender_name_vanished(GDBusConnection *connection,
 726                 const gchar     *name,
 727                 gpointer         user_data)
 728 {
 729         int *watcher_id = (int *)user_data;
 730         char *local_appid;
 731
 732         local_appid = (char *)g_hash_table_lookup(__sender_appid_hash, name);
 733         if (local_appid) {
 734                 g_hash_table_remove(__trusted_app_list_hash, (gpointer)local_appid);
 735                 g_hash_table_remove(__sender_appid_hash, (gpointer)name);
 736         }
 737
 738         if (watcher_id) {
 739                 if (*watcher_id > 0)
 740                         g_bus_unwatch_name(*watcher_id);
 741                 else
 742                         LOGE("Invalid watcher_id %d", *watcher_id);
 743                 free(watcher_id);
 744         } else {
 745                 LOGE("watcher_id is NULL");
 746         }
 747 }
 748
 749 static bool __check_sender_validation(GVariant *parameters, const char *sender, GDBusConnection *conn)
 750 {
 751         int ret = 0;
 752         char buffer[MAX_PACKAGE_STR_SIZE] = {0, };
 753         char *local_appid = NULL;
 754         int pid = __get_sender_pid(conn, sender);
 755         int *watcher_id = (int *)calloc(1, sizeof(int));
 756         char *_sender;
 757         char *_appid;
 758         retvm_if(!watcher_id, false, "Malloc failed");
 759
 760         ret = aul_app_get_appid_bypid(pid, buffer, sizeof(buffer));
 761         if (ret != AUL_R_OK) {
 762                 _LOGE("Failed to get the sender ID: (%s) (%d)", sender, pid);
 763                 free(watcher_id);
 764                 return false;
 765         }
 766
 767         g_variant_get_child(parameters, 0, "&s", &local_appid);
 768         if (local_appid == NULL) {
 769                 _LOGE("appid is NULL : (%s) (%d)", sender, pid);
 770                 free(watcher_id);
 771                 return false;
 772         }
 773
 774         if (strncmp(buffer, local_appid, MAX_PACKAGE_STR_SIZE) == 0) {
 775                 _LOGD("insert sender !!!!! %s", sender);
 776                 _sender = strdup(sender);
 777                 if (_sender == NULL) {
 778                         _LOGE("out of memory");
 779                         free(watcher_id);
 780                         return false;
 781                 }
 782
 783                 _appid = strdup(local_appid);
 784                 if (_appid == NULL) {
 785                         _LOGE("out of memory");
 786                         free(watcher_id);
 787                         free(_sender);
 788                         return false;
 789                 }
 790
 791                 g_hash_table_insert(__sender_appid_hash, (gpointer)_sender, (gpointer)_appid);
 792                 *watcher_id = g_bus_watch_name_on_connection(
 793                                         gdbus_conn,
 794                                         sender,
 795                                         G_BUS_NAME_WATCHER_FLAGS_NONE,
 796                                         __on_sender_name_appeared,
 797                                         __on_sender_name_vanished,
 798                                         watcher_id,
 799                                         NULL);
 800         } else {
 801                 free(watcher_id);
 802                 return false;
 803         }
 804         return true;
 805 }
 806
 807 static void __close_socket(GDBusMethodInvocation *invocation)
 808 {
 809         GDBusMessage *msg;
 810         GUnixFDList *fd_list;
 811         int fd_len;
 812         int *returned_fds = NULL;
 813
 814         msg = g_dbus_method_invocation_get_message(invocation);
 815         fd_list = g_dbus_message_get_unix_fd_list(msg);
 816         if (fd_list != NULL) {
 817                 returned_fds = g_unix_fd_list_steal_fds(fd_list, &fd_len);
 818                 if (returned_fds != NULL) {
 819                         close(returned_fds[0]);
 820                 }
 821         }
 822 }
 823 static void __dbus_method_call_handler(GDBusConnection *conn,
 824                                 const gchar *sender, const gchar *object_path,
 825                                 const gchar *iface_name, const gchar *method_name,
 826                                 GVariant *parameters, GDBusMethodInvocation *invocation,
 827                                 gpointer user_data)
 828 {
 829         _LOGI("method_name: %s, sender: %s", method_name, sender);
 830         gpointer sender_appid = g_hash_table_lookup(__sender_appid_hash, sender);
 831         if (sender_appid == NULL) {
 832                 if (!__check_sender_validation(parameters, sender, conn)) {
 833                         _LOGE("Failed to validate");
 834                         __close_socket(invocation);
 835                         goto out;
 836                 }
 837         }
 838
 839         if (g_strcmp0(method_name, "send_message") == 0)
 840                 __receive_message(parameters, invocation);
 841 out:
 842         g_dbus_method_invocation_return_value(invocation, NULL);
 843 }
 844
 845 static const GDBusInterfaceVTable interface_vtable = {
 846         __dbus_method_call_handler,
 847         NULL,
 848         NULL
 849 };
 850
 851 static int __register_dbus_interface(const char *port_name, bool is_trusted)
 852 {
 853
 854         GDBusNodeInfo *introspection_data = NULL;
 855         int registration_id = 0;
 856
 857         static gchar introspection_prefix[] =
 858                 "<node>"
 859                 "  <interface name='";
 860
 861         static gchar introspection_postfix[] =
 862                 "'>"
 863                 "        <method name='send_message'>"
 864                 "          <arg type='s' name='local_appid' direction='in'/>"
 865                 "          <arg type='s' name='local_port' direction='in'/>"
 866                 "          <arg type='b' name='local_trusted' direction='in'/>"
 867                 "          <arg type='b' name='bi_dir' direction='in'/>"
 868                 "          <arg type='s' name='remote_appid' direction='in'/>"
 869                 "          <arg type='s' name='remote_port' direction='in'/>"
 870                 "          <arg type='b' name='remote_trusted' direction='in'/>"
 871                 "          <arg type='u' name='data_len' direction='in'/>"
 872                 "          <arg type='s' name='data' direction='in'/>"
 873                 "        </method>"
 874                 "  </interface>"
 875                 "</node>";
 876
 877         char *introspection_xml = NULL;
 878         int introspection_xml_len = 0;
 879
 880
 881         int owner_id = 0;
 882         GError *error = NULL;
 883         char *bus_name = NULL;
 884         char *interface_name = NULL;
 885         GVariant *result = NULL;
 886
 887         bus_name = get_encoded_name(app_id, port_name, is_trusted);
 888         if (!bus_name) {
 889                 _LOGE("Fail to get bus name");
 890                 goto out;
 891         }
 892         interface_name = bus_name;
 893
 894         introspection_xml_len = strlen(introspection_prefix) + strlen(interface_name) +
 895                 strlen(introspection_postfix) + 1;
 896
 897         introspection_xml = (char *)calloc(introspection_xml_len, sizeof(char));
 898         if (!introspection_xml) {
 899                 _LOGE("out of memory");
 900                 goto out;
 901         }
 902
 903
 904         result = g_dbus_connection_call_sync(
 905                         gdbus_conn,
 906                         DBUS_SERVICE_DBUS,
 907                         DBUS_PATH_DBUS,
 908                         DBUS_INTERFACE_DBUS,
 909                         "RequestName",
 910                         g_variant_new("(su)", bus_name, G_BUS_NAME_OWNER_FLAGS_NONE),
 911                         G_VARIANT_TYPE("(u)"),
 912                         G_DBUS_CALL_FLAGS_NONE,
 913                         -1,
 914                         NULL,
 915                         &error);
 916         if (error) {
 917                 _LOGE("RequestName fail : %s", error->message);
 918                 g_error_free(error);
 919                 goto out;
 920         }
 921         if (result == NULL) {
 922                 _LOGE("fail to get name NULL");
 923                 goto out;
 924         }
 925         g_variant_get(result, "(u)", &owner_id);
 926         if (owner_id == 0) {
 927                 _LOGE("Acquiring the own name is failed");
 928                 goto out;
 929         }
 930
 931         _LOGD("Acquiring the own name : %d", owner_id);
 932
 933         snprintf(introspection_xml, introspection_xml_len, "%s%s%s", introspection_prefix, interface_name, introspection_postfix);
 934
 935         introspection_data = g_dbus_node_info_new_for_xml(introspection_xml, NULL);
 936         if (!introspection_data) {
 937                 _LOGE("g_dbus_node_info_new_for_xml() is failed.");
 938                 goto out;
 939         }
 940
 941         registration_id = g_dbus_connection_register_object(gdbus_conn,
 942                                                 MESSAGEPORT_OBJECT_PATH, introspection_data->interfaces[0],
 943                                                 &interface_vtable, NULL, NULL, NULL);
 944
 945         _LOGD("registration_id %d", registration_id);
 946
 947         if (registration_id == 0) {
 948                 _LOGE("Failed to g_dbus_connection_register_object");
 949                 goto out;
 950         }
 951
 952 out:
 953         if (introspection_data)
 954                 g_dbus_node_info_unref(introspection_data);
 955         if (introspection_xml)
 956                 free(introspection_xml);
 957         if (bus_name)
 958                 free(bus_name);
 959         if (result)
 960                 g_variant_unref(result);
 961
 962
 963         return registration_id;
 964 }
 965
 966 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)
 967 {
 968         message_port_local_port_info_s *mi = (message_port_local_port_info_s *)calloc(1, sizeof(message_port_local_port_info_s));
 969         retvm_if(!mi, false, "Malloc failed");
 970
 971         mi->callback = callback;
 972         mi->is_trusted = is_trusted;
 973         mi->port_name = strdup(local_port);
 974         if (mi->port_name == NULL) {
 975                 _LOGE("Malloc failed (%s)", local_port);
 976                 free(mi);
 977                 return false;
 978         }
 979         mi->local_id = local_id;
 980         mi->user_data = user_data;
 981
 982         g_hash_table_insert(__local_port_info, GINT_TO_POINTER(mi->local_id), mi);
 983         return true;
 984 }
 985
 986 int get_local_port_info(int id, message_port_local_port_info_s **info)
 987 {
 988         message_port_local_port_info_s *mi = (message_port_local_port_info_s *)g_hash_table_lookup(__local_port_info, GINT_TO_POINTER(id));
 989
 990         if (mi == NULL)
 991                 return MESSAGE_PORT_ERROR_PORT_NOT_FOUND;
 992         *info = mi;
 993
 994         return MESSAGE_PORT_ERROR_NONE;
 995 }
 996
 997 int register_message_port(const char *local_port, bool is_trusted, message_port_message_cb callback, void *user_data)
 998 {
 999         _SECURE_LOGI("local_port : [%s:%s]", local_port, is_trusted ? "trusted" : "non-trusted");
1000
1001         int local_id = 0;
1002         message_port_local_port_info_s *port_info;
1003         if (!_initialized) {
1004                 if (!__initialize())
1005                         return MESSAGE_PORT_ERROR_IO_ERROR;
1006         }
1007
1008         /* Check the message port is already registed */
1009         if (is_local_port_registed(local_port, is_trusted, &local_id, &port_info)) {
1010                 port_info->callback = callback;
1011                 port_info->user_data = user_data;
1012                 __callback_info_update_user_data(local_id, callback, user_data);
1013                 return local_id;
1014         }
1015
1016         local_id = __register_dbus_interface(local_port, is_trusted);
1017         if (local_id < 1) {
1018                 _LOGE("register_dbus_interface fail !!");
1019                 return MESSAGE_PORT_ERROR_OUT_OF_MEMORY;
1020         }
1021
1022         if (!__message_port_register_port(local_id, local_port, is_trusted, callback, user_data))
1023                 return MESSAGE_PORT_ERROR_OUT_OF_MEMORY;
1024
1025         return local_id;
1026 }
1027
1028 int unregister_local_port(int local_port_id, bool trusted_port)
1029 {
1030
1031         GVariant *result;
1032         char *bus_name = NULL;
1033         GError *err = NULL;
1034         int ret = 0;
1035         message_port_local_port_info_s *mi;
1036
1037         _LOGI("unregister : %d", local_port_id);
1038
1039         if (!_initialized) {
1040                 if (!__initialize())
1041                         return MESSAGE_PORT_ERROR_IO_ERROR;
1042         }
1043
1044         mi = (message_port_local_port_info_s *)
1045                 g_hash_table_lookup(__local_port_info, GINT_TO_POINTER(local_port_id));
1046         if (mi == NULL)
1047                 return MESSAGE_PORT_ERROR_PORT_NOT_FOUND;
1048
1049         if (mi->is_trusted != trusted_port)
1050                 return MESSAGE_PORT_ERROR_INVALID_PARAMETER;
1051
1052         g_hash_table_remove(__callback_info_hash, GUINT_TO_POINTER(local_port_id));
1053
1054         bus_name = get_encoded_name(app_id, mi->port_name, mi->is_trusted);
1055         if (bus_name == NULL)
1056                 return MESSAGE_PORT_ERROR_OUT_OF_MEMORY;
1057
1058         g_dbus_connection_unregister_object(gdbus_conn, local_port_id);
1059
1060         result = g_dbus_connection_call_sync(
1061                         gdbus_conn,
1062                         DBUS_SERVICE_DBUS,
1063                         DBUS_PATH_DBUS,
1064                         DBUS_INTERFACE_DBUS,
1065                         "ReleaseName",
1066                         g_variant_new("(s)", bus_name),
1067                         G_VARIANT_TYPE("(u)"),
1068                         G_DBUS_CALL_FLAGS_NONE,
1069                         -1,
1070                         NULL,
1071                         &err);
1072
1073         if (bus_name)
1074                 free(bus_name);
1075
1076         if (err) {
1077                 _LOGE("RequestName fail : %s", err->message);
1078                 g_error_free(err);
1079                 return MESSAGE_PORT_ERROR_PORT_NOT_FOUND;
1080         }
1081         g_variant_get(result, "(u)", &ret);
1082
1083         if (result)
1084                 g_variant_unref(result);
1085
1086         if (ret != DBUS_RELEASE_NAME_REPLY_RELEASED) {
1087
1088                 if (ret == DBUS_RELEASE_NAME_REPLY_NON_EXISTENT) {
1089                         _LOGE("Port Not exist");
1090                         return MESSAGE_PORT_ERROR_PORT_NOT_FOUND;
1091                 } else if (ret == DBUS_RELEASE_NAME_REPLY_NOT_OWNER) {
1092                         _LOGE("Try to release not owned name. MESSAGE_PORT_ERROR_INVALID_PARAMETER");
1093                         return MESSAGE_PORT_ERROR_INVALID_PARAMETER;
1094                 }
1095         }
1096         g_hash_table_remove(__local_port_info, GINT_TO_POINTER(local_port_id));
1097
1098         return MESSAGE_PORT_ERROR_NONE;
1099 }