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 /* LCOV_EXCL_START */
 254                 close(fd);
 255                 return NULL;
 256 /* LCOV_EXCL_STOP */
 257         }
 258
 259         if (read_string_from_socket(fd, (char **)&pkt->remote_port_name, &pkt->remote_port_name_len) != MESSAGE_PORT_ERROR_NONE) {
 260 /* LCOV_EXCL_START */
 261                 LOGE("read socket fail: port_name");
 262                 free(pkt->remote_port_name);
 263                 free(pkt);
 264                 return NULL;
 265 /* LCOV_EXCL_STOP */
 266         }
 267
 268         if (read_socket(fd, (char *)&pkt->is_bidirection, sizeof(pkt->is_bidirection), &nb) != MESSAGE_PORT_ERROR_NONE) {
 269 /* LCOV_EXCL_START */
 270                 LOGE("read socket fail: is_bidirection");
 271                 free(pkt->remote_port_name);
 272                 free(pkt);
 273                 return NULL;
 274 /* LCOV_EXCL_STOP */
 275         }
 276
 277         if (read_socket(fd, (char *)&pkt->is_trusted, sizeof(pkt->is_trusted), &nb) != MESSAGE_PORT_ERROR_NONE) {
 278 /* LCOV_EXCL_START */
 279                 LOGE("read socket fail: is_trusted");
 280                 free(pkt->remote_port_name);
 281                 free(pkt);
 282                 return NULL;
 283 /* LCOV_EXCL_STOP */
 284         }
 285
 286         if (read_string_from_socket(fd, (char **)&pkt->data, &pkt->data_len) != MESSAGE_PORT_ERROR_NONE) {
 287 /* LCOV_EXCL_START */
 288                 LOGE("read socket fail: data");
 289                 if (pkt->data)
 290                         free(pkt->data);
 291                 free(pkt->remote_port_name);
 292                 free(pkt);
 293                 return NULL;
 294 /* LCOV_EXCL_STOP */
 295         }
 296
 297         return pkt;
 298 }
 299
 300 static bool __validate_callback_info(callback_key_info_s *key_info)
 301 {
 302         GList *cb_list;
 303
 304         cb_list = g_hash_table_lookup(__callback_info_hash,
 305                         GUINT_TO_POINTER(key_info->local_id));
 306         if (cb_list == NULL) {
 307                 _LOGI("local_info : %d is already released", key_info->local_id);
 308                 return false;
 309         }
 310
 311         cb_list = g_list_find(cb_list, key_info->callback_info);
 312         if (cb_list == NULL) {
 313                 _LOGI("local_info : %d is already released from list",
 314                                 key_info->local_id);
 315                 return false;
 316         }
 317
 318         return true;
 319 }
 320
 321 static bool __validate_local_info(callback_key_info_s *key_info)
 322 {
 323         GList *cb_list;
 324
 325         cb_list = g_hash_table_lookup(__local_port_info,
 326                         GUINT_TO_POINTER(key_info->local_id));
 327         if (cb_list == NULL) {
 328                 _LOGI("local_info : %d is already released", key_info->local_id);
 329                 return false;
 330         }
 331
 332         return true;
 333 }
 334
 335 static gboolean __socket_request_handler(GIOChannel *gio,
 336                 GIOCondition cond,
 337                 gpointer data)
 338 {
 339         int fd = 0;
 340         message_port_callback_info_s *mi = NULL;
 341         callback_key_info_s *key_info;
 342         message_port_pkt_s *pkt = NULL;
 343         message_port_local_port_info_s *local_port_info;
 344         bundle *kb = NULL;
 345         bool ret = true;
 346         bool existed = true;
 347
 348         key_info = (callback_key_info_s *)data;
 349         if (key_info == NULL)
 350                 return FALSE;
 351
 352         message_port_lock_mutex();
 353         if (__validate_callback_info(key_info) == false) {
 354                 ret = FALSE;
 355                 existed = FALSE;
 356                 message_port_unlock_mutex();
 357                 goto out;
 358         }
 359
 360         if (__validate_local_info(key_info) == false) {
 361                 ret = FALSE;
 362                 message_port_unlock_mutex();
 363                 goto out;
 364         }
 365         message_port_unlock_mutex();
 366
 367         mi = key_info->callback_info;
 368
 369         local_port_info = mi->local_info;
 370         if (local_port_info == NULL || local_port_info->callback == NULL) {
 371                 _LOGE("Failed to get callback info");
 372                 ret = FALSE;
 373                 goto out;
 374         }
 375
 376         if (cond == G_IO_HUP) {
 377                 _LOGI("socket G_IO_HUP");
 378                 ret = FALSE;
 379                 goto out;
 380         }
 381
 382         fd = g_io_channel_unix_get_fd(gio);
 383         if (fd < 0) {
 384                 _LOGE("fail to get fd from io channel");
 385                 ret = FALSE;
 386                 goto out;
 387         }
 388
 389         pkt = __message_port_recv_raw(fd);
 390         if (pkt == NULL) {
 391                 _LOGE("recv error on SOCKET");
 392                 ret = FALSE;
 393                 goto out;
 394         }
 395
 396         kb = bundle_decode(pkt->data, pkt->data_len);
 397         if (!kb) {
 398                 _LOGE("Invalid argument : message");
 399                 ret = FALSE;
 400                 goto out;
 401         }
 402
 403         if (pkt->is_bidirection)
 404                 local_port_info->callback(mi->local_id, mi->remote_app_id,
 405                         pkt->remote_port_name, pkt->is_trusted, kb, local_port_info->user_data);
 406         else
 407                 local_port_info->callback(mi->local_id, mi->remote_app_id,
 408                         NULL, pkt->is_trusted, kb, local_port_info->user_data);
 409
 410         bundle_free(kb);
 411
 412 out:
 413         if (pkt) {
 414                 if (pkt->remote_port_name)
 415                         free(pkt->remote_port_name);
 416                 if (pkt->data)
 417                         free(pkt->data);
 418                 free(pkt);
 419         }
 420
 421         if (mi && ret == FALSE && existed == TRUE) {
 422                 message_port_lock_mutex();
 423                 __callback_info_free_by_info(mi);
 424                 message_port_unlock_mutex();
 425         }
 426
 427         return ret;
 428 }
 429
 430
 431 static void __socket_destroy_handler(gpointer data)
 432 {
 433         _LOGI("__socket_destroy_handler");
 434         callback_key_info_s *key_info = (callback_key_info_s *)data;
 435         free(key_info);
 436 }
 437
 438 static callback_key_info_s *__create_callback_key_info(message_port_callback_info_s *callback_info)
 439 {
 440         callback_key_info_s *_key_info = (callback_key_info_s *)
 441                 calloc(1, sizeof(callback_key_info_s));
 442
 443         if (_key_info == NULL) {
 444 /* LCOV_EXCL_START */
 445                 _LOGE("out of memory");
 446                 return NULL;
 447 /* LCOV_EXCL_STOP */
 448         }
 449
 450         _key_info->local_id = callback_info->local_id;
 451         _key_info->callback_info = callback_info;
 452
 453         return _key_info;
 454 }
 455
 456 static message_port_callback_info_s *__create_callback_info(message_port_local_port_info_s *mi, char *local_appid)
 457 {
 458         message_port_local_port_info_s *local_info = NULL;
 459         message_port_callback_info_s *callback_info = NULL;
 460         bool ret = true;
 461
 462         callback_info = (message_port_callback_info_s *)calloc(1, sizeof(message_port_callback_info_s));
 463         if (callback_info == NULL) {
 464 /* LCOV_EXCL_START */
 465                 _LOGE("out of memory");
 466                 return NULL;
 467 /* LCOV_EXCL_STOP */
 468         }
 469
 470         local_info = (message_port_local_port_info_s *)calloc(1, sizeof(message_port_local_port_info_s));
 471         if (local_info == NULL) {
 472 /* LCOV_EXCL_START */
 473                 ret = false;
 474                 _LOGE("out of memory");
 475                 goto out;
 476 /* LCOV_EXCL_STOP */
 477         }
 478
 479         callback_info->local_id = mi->local_id;
 480         callback_info->local_info = local_info;
 481         callback_info->remote_app_id = strdup(local_appid);
 482         if (callback_info->remote_app_id == NULL) {
 483 /* LCOV_EXCL_START */
 484                 ret = false;
 485                 _LOGE("out of memory");
 486                 goto out;
 487 /* LCOV_EXCL_STOP */
 488         }
 489
 490         local_info->port_name = strdup(mi->port_name);
 491         if (local_info->port_name == NULL) {
 492 /* LCOV_EXCL_START */
 493                 ret = false;
 494                 _LOGE("out of memory");
 495                 goto out;
 496 /* LCOV_EXCL_STOP */
 497         }
 498
 499         local_info->callback = mi->callback;
 500         local_info->is_trusted = mi->is_trusted;
 501         local_info->local_id = mi->local_id;
 502         local_info->user_data = mi->user_data;
 503
 504 out:
 505         if (ret == false) {
 506                 __callback_info_free(callback_info);
 507                 return NULL;
 508         }
 509
 510         return callback_info;
 511 }
 512
 513 static bool __callback_info_append(message_port_callback_info_s *callback_info)
 514 {
 515         GList *callback_info_list = NULL;
 516         message_port_callback_info_s *head_callback_info;
 517
 518         callback_info_list = g_hash_table_lookup(__callback_info_hash, GUINT_TO_POINTER(callback_info->local_id));
 519         if (callback_info_list == NULL) {
 520                 head_callback_info = (message_port_callback_info_s *)calloc(1, sizeof(message_port_callback_info_s));
 521                 if (head_callback_info == NULL) {
 522 /* LCOV_EXCL_START */
 523                         _LOGE("fail to alloc head_callback_info");
 524                         return false;
 525 /* LCOV_EXCL_STOP */
 526                 }
 527                 head_callback_info->local_id = 0;
 528                 head_callback_info->remote_app_id = NULL;
 529                 head_callback_info->local_info = NULL;
 530                 head_callback_info->gio_read = NULL;
 531                 head_callback_info->g_src_id = 0;
 532                 callback_info_list = g_list_append(callback_info_list, head_callback_info);
 533                 callback_info_list = g_list_append(callback_info_list, callback_info);
 534                 g_hash_table_insert(__callback_info_hash, GUINT_TO_POINTER(callback_info->local_id), callback_info_list);
 535         } else {
 536                 callback_info_list = g_list_append(callback_info_list, callback_info);
 537         }
 538
 539         return true;
 540 }
 541
 542 static void __callback_info_update_user_data(int local_id, message_port_message_cb callback, void *user_data)
 543 {
 544         GList *callback_info_list;
 545         GList *iter;
 546         message_port_callback_info_s *callback_info;
 547
 548         callback_info_list = g_hash_table_lookup(__callback_info_hash, GUINT_TO_POINTER(local_id));
 549         if (callback_info_list != NULL) {
 550 /* LCOV_EXCL_START */
 551                 for (iter = callback_info_list; iter != NULL; iter = iter->next) {
 552                         callback_info = (message_port_callback_info_s *)iter->data;
 553                         if (callback_info->local_info != NULL) {
 554                                 callback_info->local_info->callback = callback;
 555                                 callback_info->local_info->user_data = user_data;
 556                         }
 557                 }
 558 /* LCOV_EXCL_STOP */
 559         } else {
 560                 _LOGE("fail to find local_id %d ", local_id);
 561         }
 562 }
 563
 564 static bool __receive_message(GVariant *parameters, GDBusMethodInvocation *invocation)
 565 {
 566         char *local_port = NULL;
 567         char *local_appid = NULL;
 568         char *remote_appid = NULL;
 569         char *remote_port = NULL;
 570         gboolean local_trusted = false;
 571         gboolean remote_trusted = false;
 572         gboolean bi_dir = false;
 573         int len = 0;
 574
 575         bundle *data = NULL;
 576         bundle_raw *raw = NULL;
 577         message_port_local_port_info_s *mi;
 578         int local_reg_id = 0;
 579         message_port_callback_info_s *callback_info = NULL;
 580         callback_key_info_s *key_info;
 581
 582         char buf[1024];
 583         GDBusMessage *msg;
 584         GUnixFDList *fd_list;
 585         int fd_len;
 586         int *returned_fds = NULL;
 587         int fd;
 588         bool ret = false;
 589         char *key_appid;
 590
 591         g_variant_get(parameters, "(&s&sbb&s&sbu&s)", &local_appid, &local_port, &local_trusted, &bi_dir,
 592                         &remote_appid, &remote_port, &remote_trusted, &len, &raw);
 593
 594         if (!remote_port) {
 595                 _LOGE("Invalid argument : remote_port is NULL");
 596                 goto out;
 597         }
 598         if (!remote_appid) {
 599                 _LOGE("Invalid argument : remote_appid is NULL");
 600                 goto out;
 601         }
 602
 603         if (!local_appid) {
 604                 _LOGE("Invalid argument : local_appid");
 605                 goto out;
 606         }
 607
 608         message_port_lock_mutex();
 609         if (!is_local_port_registed(remote_port, remote_trusted, &local_reg_id, &mi)) {
 610                 _LOGE("Invalid argument : remote_port:(%s) trusted(%d)", remote_port, remote_trusted);
 611                 message_port_unlock_mutex();
 612                 goto out;
 613         }
 614
 615         callback_info = __create_callback_info(mi, local_appid);
 616         if (callback_info == NULL) {
 617                 message_port_unlock_mutex();
 618                 goto out;
 619         }
 620         message_port_unlock_mutex();
 621
 622         if (!local_port) {
 623                 _LOGE("Invalid argument : local_port");
 624                 goto out;
 625         }
 626         if (strcmp(remote_appid, app_id) != 0) {
 627                 _LOGE("Invalid argument : remote_appid (%s)", remote_appid);
 628                 goto out;
 629         }
 630         if (strcmp(remote_port, callback_info->local_info->port_name) != 0) {
 631                 _LOGE("Invalid argument : remote_port (%s)", remote_port);
 632                 goto out;
 633         }
 634         if (!len) {
 635                 _LOGE("Invalid argument : data_len");
 636                 goto out;
 637         }
 638         if (remote_trusted) {
 639 /* LCOV_EXCL_START */
 640                 if (g_hash_table_lookup(__trusted_app_list_hash, (gpointer)local_appid) == NULL) {
 641                         if (!is_preloaded(local_appid, remote_appid)) {
 642                                 int ret = check_certificate(local_appid, remote_appid);
 643                                 if (ret == MESSAGE_PORT_ERROR_NONE) {
 644                                         key_appid = strdup(local_appid);
 645                                         if (key_appid)
 646                                                 g_hash_table_insert(__trusted_app_list_hash, key_appid, "TRUE");
 647                                 } else {
 648                                         _LOGE("The application (%s) is not signed with the same certificate",
 649                                                         local_appid);
 650                                         goto out;
 651                                 }
 652                         }
 653                 }
 654 /* LCOV_EXCL_STOP */
 655         }
 656
 657         data = bundle_decode(raw, len);
 658         if (!data) {
 659                 _LOGE("Invalid argument : message");
 660                 goto out;
 661         }
 662
 663         LOGD("call calback %s", local_appid);
 664         if (bi_dir)
 665                 callback_info->local_info->callback(callback_info->local_info->local_id,
 666                         local_appid, local_port, local_trusted, data, callback_info->local_info->user_data);
 667         else
 668                 callback_info->local_info->callback(callback_info->local_info->local_id,
 669                         local_appid, NULL, false, data, callback_info->local_info->user_data);
 670         bundle_free(data);
 671
 672         ret = true;
 673
 674         msg = g_dbus_method_invocation_get_message(invocation);
 675         fd_list = g_dbus_message_get_unix_fd_list(msg);
 676
 677         /* When application send message to self fd_list is NULL */
 678         if (fd_list != NULL) {
 679                 returned_fds = g_unix_fd_list_steal_fds(fd_list, &fd_len);
 680                 if (returned_fds == NULL) {
 681                         _LOGE("fail to get fds");
 682                         ret = false;
 683                         goto out;
 684                 }
 685                 fd = returned_fds[0];
 686
 687                 LOGI("g_unix_fd_list_get %d fd: [%d]", fd_len, fd);
 688                 if (fd > 0) {
 689                         callback_info->gio_read = g_io_channel_unix_new(fd);
 690                         if (!callback_info->gio_read) {
 691                                 _LOGE("Error is %s\n", strerror_r(errno, buf, sizeof(buf)));
 692                                 ret = false;
 693                                 goto out;
 694                         }
 695
 696                         key_info = __create_callback_key_info(callback_info);
 697                         if (key_info == NULL) {
 698                                 _LOGE("out of memory");
 699                                 ret = false;
 700                                 goto out;
 701                         }
 702
 703                         callback_info->g_src_id = g_io_add_watch_full(
 704                                         callback_info->gio_read,
 705                                         G_PRIORITY_DEFAULT,
 706                                         G_IO_IN | G_IO_HUP,
 707                                         __socket_request_handler,
 708                                         (gpointer)key_info,
 709                                         __socket_destroy_handler);
 710                         if (callback_info->g_src_id == 0) {
 711                                 _LOGE("fail to add watch on socket");
 712                                 free(key_info);
 713                                 ret = false;
 714                                 goto out;
 715                         }
 716
 717                         message_port_lock_mutex();
 718                         if (__callback_info_append(callback_info) == false) {
 719                                 _LOGE("fail to append callback_info");
 720                                 ret = false;
 721                         }
 722                         message_port_unlock_mutex();
 723                 }
 724         }
 725
 726 out:
 727         if (ret == false)
 728                 __callback_info_free(callback_info);
 729
 730         if (returned_fds)
 731                 g_free(returned_fds);
 732
 733         return ret;
 734 }
 735
 736 static void __on_sender_name_appeared(GDBusConnection *connection,
 737                 const gchar     *name,
 738                 const gchar     *name_owner,
 739                 gpointer         user_data)
 740 {
 741         _LOGI("sender name appeared : %s", name);
 742 }
 743
 744 static void __on_sender_name_vanished(GDBusConnection *connection,
 745                 const gchar     *name,
 746                 gpointer         user_data)
 747 {
 748         int *watcher_id = (int *)user_data;
 749         char *local_appid;
 750
 751         local_appid = (char *)g_hash_table_lookup(__sender_appid_hash, name);
 752         if (local_appid) {
 753                 g_hash_table_remove(__trusted_app_list_hash, (gpointer)local_appid);
 754                 g_hash_table_remove(__sender_appid_hash, (gpointer)name);
 755         }
 756
 757         if (watcher_id) {
 758                 if (*watcher_id > 0)
 759                         g_bus_unwatch_name(*watcher_id);
 760                 else
 761                         LOGE("Invalid watcher_id %d", *watcher_id);
 762                 free(watcher_id);
 763         } else {
 764                 LOGE("watcher_id is NULL");
 765         }
 766 }
 767
 768 static bool __check_sender_validation(GVariant *parameters, const char *sender, GDBusConnection *conn)
 769 {
 770         int ret = 0;
 771         char buffer[MAX_PACKAGE_STR_SIZE] = {0, };
 772         char *local_appid = NULL;
 773         int pid = __get_sender_pid(conn, sender);
 774         int *watcher_id = (int *)calloc(1, sizeof(int));
 775         char *_sender;
 776         char *_appid;
 777         retvm_if(!watcher_id, false, "Malloc failed");
 778
 779         ret = aul_app_get_appid_bypid(pid, buffer, sizeof(buffer));
 780         if (ret != AUL_R_OK) {
 781                 _LOGE("Failed to get the sender ID: (%s) (%d)", sender, pid);
 782                 free(watcher_id);
 783                 return false;
 784         }
 785
 786         g_variant_get_child(parameters, 0, "&s", &local_appid);
 787         if (local_appid == NULL) {
 788                 _LOGE("appid is NULL : (%s) (%d)", sender, pid);
 789                 free(watcher_id);
 790                 return false;
 791         }
 792
 793         if (strncmp(buffer, local_appid, MAX_PACKAGE_STR_SIZE) == 0) {
 794                 _LOGD("insert sender !!!!! %s", sender);
 795                 _sender = strdup(sender);
 796                 if (_sender == NULL) {
 797 /* LCOV_EXCL_START */
 798                         _LOGE("out of memory");
 799                         free(watcher_id);
 800                         return false;
 801 /* LCOV_EXCL_STOP */
 802                 }
 803
 804                 _appid = strdup(local_appid);
 805                 if (_appid == NULL) {
 806 /* LCOV_EXCL_START */
 807                         _LOGE("out of memory");
 808                         free(watcher_id);
 809                         free(_sender);
 810                         return false;
 811 /* LCOV_EXCL_STOP */
 812                 }
 813
 814                 g_hash_table_insert(__sender_appid_hash, (gpointer)_sender, (gpointer)_appid);
 815                 *watcher_id = g_bus_watch_name_on_connection(
 816                                         gdbus_conn,
 817                                         sender,
 818                                         G_BUS_NAME_WATCHER_FLAGS_NONE,
 819                                         __on_sender_name_appeared,
 820                                         __on_sender_name_vanished,
 821                                         watcher_id,
 822                                         NULL);
 823         } else {
 824                 free(watcher_id);
 825                 return false;
 826         }
 827         return true;
 828 }
 829 /* LCOV_EXCL_START */
 830 static void __close_socket(GDBusMethodInvocation *invocation)
 831 {
 832         GDBusMessage *msg;
 833         GUnixFDList *fd_list;
 834         int fd_len;
 835         int *returned_fds = NULL;
 836
 837         msg = g_dbus_method_invocation_get_message(invocation);
 838         fd_list = g_dbus_message_get_unix_fd_list(msg);
 839         if (fd_list != NULL) {
 840                 returned_fds = g_unix_fd_list_steal_fds(fd_list, &fd_len);
 841                 if (returned_fds != NULL) {
 842                         close(returned_fds[0]);
 843                         g_free(returned_fds);
 844                 }
 845         }
 846 }
 847 /* LCOV_EXCL_STOP */
 848 static void __dbus_method_call_handler(GDBusConnection *conn,
 849                                 const gchar *sender, const gchar *object_path,
 850                                 const gchar *iface_name, const gchar *method_name,
 851                                 GVariant *parameters, GDBusMethodInvocation *invocation,
 852                                 gpointer user_data)
 853 {
 854         _LOGI("method_name: %s, sender: %s", method_name, sender);
 855         gpointer sender_appid = g_hash_table_lookup(__sender_appid_hash, sender);
 856         if (sender_appid == NULL) {
 857                 if (!__check_sender_validation(parameters, sender, conn)) {
 858                         _LOGE("Failed to validate");
 859                         __close_socket(invocation);
 860                         goto out;
 861                 }
 862         }
 863
 864         if (g_strcmp0(method_name, "send_message") == 0)
 865                 __receive_message(parameters, invocation);
 866 out:
 867         g_dbus_method_invocation_return_value(invocation, NULL);
 868 }
 869
 870 static const GDBusInterfaceVTable interface_vtable = {
 871         __dbus_method_call_handler,
 872         NULL,
 873         NULL
 874 };
 875
 876 static int __register_dbus_interface(const char *port_name, bool is_trusted)
 877 {
 878
 879         GDBusNodeInfo *introspection_data = NULL;
 880         int registration_id = 0;
 881
 882         static gchar introspection_prefix[] =
 883                 "<node>"
 884                 "  <interface name='";
 885
 886         static gchar introspection_postfix[] =
 887                 "'>"
 888                 "        <method name='send_message'>"
 889                 "          <arg type='s' name='local_appid' direction='in'/>"
 890                 "          <arg type='s' name='local_port' direction='in'/>"
 891                 "          <arg type='b' name='local_trusted' direction='in'/>"
 892                 "          <arg type='b' name='bi_dir' direction='in'/>"
 893                 "          <arg type='s' name='remote_appid' direction='in'/>"
 894                 "          <arg type='s' name='remote_port' direction='in'/>"
 895                 "          <arg type='b' name='remote_trusted' direction='in'/>"
 896                 "          <arg type='u' name='data_len' direction='in'/>"
 897                 "          <arg type='s' name='data' direction='in'/>"
 898                 "        </method>"
 899                 "  </interface>"
 900                 "</node>";
 901
 902         char *introspection_xml = NULL;
 903         int introspection_xml_len = 0;
 904
 905
 906         int owner_id = 0;
 907         GError *error = NULL;
 908         char *bus_name = NULL;
 909         char *interface_name = NULL;
 910         GVariant *result = NULL;
 911
 912         bus_name = get_encoded_name(app_id, port_name, is_trusted);
 913         if (!bus_name) {
 914                 _LOGE("Fail to get bus name");
 915                 goto out;
 916         }
 917         interface_name = bus_name;
 918
 919         introspection_xml_len = strlen(introspection_prefix) + strlen(interface_name) +
 920                 strlen(introspection_postfix) + 1;
 921
 922         introspection_xml = (char *)calloc(introspection_xml_len, sizeof(char));
 923         if (!introspection_xml) {
 924 /* LCOV_EXCL_START */
 925                 _LOGE("out of memory");
 926                 goto out;
 927 /* LCOV_EXCL_STOP */
 928         }
 929
 930
 931         result = g_dbus_connection_call_sync(
 932                         gdbus_conn,
 933                         DBUS_SERVICE_DBUS,
 934                         DBUS_PATH_DBUS,
 935                         DBUS_INTERFACE_DBUS,
 936                         "RequestName",
 937                         g_variant_new("(su)", bus_name, G_BUS_NAME_OWNER_FLAGS_NONE),
 938                         G_VARIANT_TYPE("(u)"),
 939                         G_DBUS_CALL_FLAGS_NONE,
 940                         -1,
 941                         NULL,
 942                         &error);
 943         if (error) {
 944                 _LOGE("RequestName fail : %s", error->message);
 945                 g_error_free(error);
 946                 goto out;
 947         }
 948         if (result == NULL) {
 949                 _LOGE("fail to get name NULL");
 950                 goto out;
 951         }
 952         g_variant_get(result, "(u)", &owner_id);
 953         if (owner_id == 0) {
 954                 _LOGE("Acquiring the own name is failed");
 955                 goto out;
 956         }
 957
 958         _LOGD("Acquiring the own name : %d", owner_id);
 959
 960         snprintf(introspection_xml, introspection_xml_len, "%s%s%s", introspection_prefix, interface_name, introspection_postfix);
 961
 962         introspection_data = g_dbus_node_info_new_for_xml(introspection_xml, NULL);
 963         if (!introspection_data) {
 964                 _LOGE("g_dbus_node_info_new_for_xml() is failed.");
 965                 goto out;
 966         }
 967
 968         registration_id = g_dbus_connection_register_object(gdbus_conn,
 969                                                 MESSAGEPORT_OBJECT_PATH, introspection_data->interfaces[0],
 970                                                 &interface_vtable, NULL, NULL, NULL);
 971
 972         _LOGD("registration_id %d", registration_id);
 973
 974         if (registration_id == 0) {
 975                 _LOGE("Failed to g_dbus_connection_register_object");
 976                 goto out;
 977         }
 978
 979 out:
 980         if (introspection_data)
 981                 g_dbus_node_info_unref(introspection_data);
 982         if (introspection_xml)
 983                 free(introspection_xml);
 984         if (bus_name)
 985                 free(bus_name);
 986         if (result)
 987                 g_variant_unref(result);
 988
 989
 990         return registration_id;
 991 }
 992
 993 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)
 994 {
 995         message_port_local_port_info_s *mi = (message_port_local_port_info_s *)calloc(1, sizeof(message_port_local_port_info_s));
 996         retvm_if(!mi, false, "Malloc failed");
 997
 998         mi->callback = callback;
 999         mi->is_trusted = is_trusted;
1000         mi->port_name = strdup(local_port);
1001         if (mi->port_name == NULL) {
1002 /* LCOV_EXCL_START */
1003                 _LOGE("Malloc failed (%s)", local_port);
1004                 free(mi);
1005                 return false;
1006 /* LCOV_EXCL_STOP */
1007         }
1008         mi->local_id = local_id;
1009         mi->user_data = user_data;
1010
1011         g_hash_table_insert(__local_port_info, GINT_TO_POINTER(mi->local_id), mi);
1012         return true;
1013 }
1014
1015 int get_local_port_info(int id, message_port_local_port_info_s **info)
1016 {
1017         message_port_local_port_info_s *mi = (message_port_local_port_info_s *)g_hash_table_lookup(__local_port_info, GINT_TO_POINTER(id));
1018
1019         if (mi == NULL)
1020                 return MESSAGE_PORT_ERROR_PORT_NOT_FOUND;
1021         *info = mi;
1022
1023         return MESSAGE_PORT_ERROR_NONE;
1024 }
1025
1026 int register_message_port(const char *local_port, bool is_trusted, message_port_message_cb callback, void *user_data)
1027 {
1028         _SECURE_LOGI("local_port : [%s:%s]", local_port, is_trusted ? "trusted" : "non-trusted");
1029
1030         int local_id = 0;
1031         message_port_local_port_info_s *port_info;
1032         if (!_initialized) {
1033                 if (!__initialize())
1034                         return MESSAGE_PORT_ERROR_IO_ERROR;
1035         }
1036
1037         /* Check the message port is already registed */
1038         if (is_local_port_registed(local_port, is_trusted, &local_id, &port_info)) {
1039                 port_info->callback = callback;
1040                 port_info->user_data = user_data;
1041                 __callback_info_update_user_data(local_id, callback, user_data);
1042                 return local_id;
1043         }
1044
1045         local_id = __register_dbus_interface(local_port, is_trusted);
1046         if (local_id < 1) {
1047                 _LOGE("register_dbus_interface fail !!");
1048                 return MESSAGE_PORT_ERROR_OUT_OF_MEMORY;
1049         }
1050
1051         if (!__message_port_register_port(local_id, local_port, is_trusted, callback, user_data))
1052                 return MESSAGE_PORT_ERROR_OUT_OF_MEMORY;
1053
1054         return local_id;
1055 }
1056
1057 int unregister_local_port(int local_port_id, bool trusted_port)
1058 {
1059
1060         GVariant *result;
1061         char *bus_name = NULL;
1062         GError *err = NULL;
1063         int ret = 0;
1064         message_port_local_port_info_s *mi;
1065
1066         _LOGI("unregister : %d", local_port_id);
1067
1068         if (!_initialized) {
1069                 if (!__initialize())
1070                         return MESSAGE_PORT_ERROR_IO_ERROR;
1071         }
1072
1073         mi = (message_port_local_port_info_s *)
1074                 g_hash_table_lookup(__local_port_info, GINT_TO_POINTER(local_port_id));
1075         if (mi == NULL)
1076                 return MESSAGE_PORT_ERROR_PORT_NOT_FOUND;
1077
1078         if (mi->is_trusted != trusted_port)
1079                 return MESSAGE_PORT_ERROR_INVALID_PARAMETER;
1080
1081         g_hash_table_remove(__callback_info_hash, GUINT_TO_POINTER(local_port_id));
1082
1083         bus_name = get_encoded_name(app_id, mi->port_name, mi->is_trusted);
1084         if (bus_name == NULL)
1085                 return MESSAGE_PORT_ERROR_OUT_OF_MEMORY;
1086
1087         g_dbus_connection_unregister_object(gdbus_conn, local_port_id);
1088
1089         result = g_dbus_connection_call_sync(
1090                         gdbus_conn,
1091                         DBUS_SERVICE_DBUS,
1092                         DBUS_PATH_DBUS,
1093                         DBUS_INTERFACE_DBUS,
1094                         "ReleaseName",
1095                         g_variant_new("(s)", bus_name),
1096                         G_VARIANT_TYPE("(u)"),
1097                         G_DBUS_CALL_FLAGS_NONE,
1098                         -1,
1099                         NULL,
1100                         &err);
1101
1102         if (bus_name)
1103                 free(bus_name);
1104
1105         if (err) {
1106                 _LOGE("RequestName fail : %s", err->message);
1107                 g_error_free(err);
1108                 return MESSAGE_PORT_ERROR_PORT_NOT_FOUND;
1109         }
1110         g_variant_get(result, "(u)", &ret);
1111
1112         if (result)
1113                 g_variant_unref(result);
1114 /* LCOV_EXCL_START */
1115         if (ret != DBUS_RELEASE_NAME_REPLY_RELEASED) {
1116                 if (ret == DBUS_RELEASE_NAME_REPLY_NON_EXISTENT) {
1117                         _LOGE("Port Not exist");
1118                         return MESSAGE_PORT_ERROR_PORT_NOT_FOUND;
1119                 } else if (ret == DBUS_RELEASE_NAME_REPLY_NOT_OWNER) {
1120                         _LOGE("Try to release not owned name. MESSAGE_PORT_ERROR_INVALID_PARAMETER");
1121                         return MESSAGE_PORT_ERROR_INVALID_PARAMETER;
1122                 }
1123         }
1124 /* LCOV_EXCL_STOP */
1125         g_hash_table_remove(__local_port_info, GINT_TO_POINTER(local_port_id));
1126
1127         return MESSAGE_PORT_ERROR_NONE;
1128 }