src/message-port.c

   1 /*
   2  * Message Port
   3  * Copyright (c) 2015 Samsung Electronics Co., Ltd.
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the License);
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *     http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 /**
  19  * @file        message-port.cpp
  20  * @brief       This is the implementation file for the MessagePort.
  21  */
  22 #define _GNU_SOURCE
  23
  24 #include <sys/socket.h>
  25 #include <stdlib.h>
  26 #include <stdio.h>
  27 #include <glib.h>
  28 #include <gio/gio.h>
  29 #include <aul/aul.h>
  30 #include <openssl/md5.h>
  31 #include <bundle.h>
  32 #include <bundle_internal.h>
  33 #include <pkgmgr-info.h>
  34 #include <aul.h>
  35 #include <gio/gio.h>
  36 #include <gio/gunixfdlist.h>
  37
  38 #include "message-port.h"
  39 #include "message-port-log.h"
  40
  41 #define MAX_PACKAGE_STR_SIZE 512
  42 #define MESSAGEPORT_BUS_NAME_PREFIX "org.tizen.messageport._"
  43 #define MESSAGEPORT_OBJECT_PATH "/org/tizen/messageport"
  44 #define MESSAGEPORT_INTERFACE_PREFIX "org.tizen.messageport._"
  45
  46 #define DBUS_SERVICE_DBUS "org.freedesktop.DBus"
  47 #define DBUS_PATH_DBUS "/org/freedesktop/DBus"
  48 #define DBUS_INTERFACE_DBUS "org.freedesktop.DBus"
  49
  50 #define DBUS_RELEASE_NAME_REPLY_RELEASED        1 /* *< Service was released from the given name */
  51 #define DBUS_RELEASE_NAME_REPLY_NON_EXISTENT    2 /* *< The given name does not exist on the bus */
  52 #define DBUS_RELEASE_NAME_REPLY_NOT_OWNER       3 /* *< Service is not an owner of the given name */
  53 #define HEADER_LEN 8
  54 #define MAX_RETRY_CNT 10
  55 #define SOCK_PAIR_SENDER 0
  56 #define SOCK_PAIR_RECEIVER 1
  57
  58
  59 #define retvm_if(expr, val, fmt, arg...) do { \
  60         if (expr) { \
  61                 _LOGE(fmt, ##arg); \
  62                 _LOGE("(%s) -> %s() return", #expr, __func__); \
  63                 return val; \
  64         } \
  65 } while (0)
  66
  67 #define retv_if(expr, val) do { \
  68         if (expr) { \
  69                 _LOGE("(%s) -> %s() return", #expr, __func__); \
  70                 return val; \
  71         } \
  72 } while (0)
  73
  74 #define FREE_AND_NULL(ptr) do { \
  75         if (ptr) { \
  76                 free((void *)ptr); \
  77                 ptr = NULL; \
  78         } \
  79 } while (0)
  80
  81 static bool _initialized = false;
  82 static GDBusConnection *__gdbus_conn;
  83 static char *__app_id;
  84 static GHashTable *__local_port_info;
  85 static GHashTable *__remote_app_info;
  86 static GHashTable *__sender_appid_hash;
  87 static GHashTable *__trusted_app_list_hash;
  88 static GHashTable *__callback_info_hash;
  89 static const int MAX_MESSAGE_SIZE = 16 * 1024;
  90
  91 enum __certificate_info_type {
  92         UNKNOWN = 0,
  93         CERTIFICATE_MATCH,
  94         CERTIFICATE_NOT_MATCH,
  95 };
  96
  97 typedef struct message_port_pkt {
  98         int remote_port_name_len;
  99         char *remote_port_name;
 100         bool is_bidirection;
 101         bool is_trusted;
 102         int data_len;
 103         unsigned char *data;
 104 } message_port_pkt_s;
 105
 106 typedef struct message_port_callback_info {
 107         messageport_message_cb callback;
 108         int local_id;
 109         char *remote_app_id;
 110         GIOChannel *gio_read;
 111         int g_src_id;
 112 } message_port_callback_info_s;
 113
 114 typedef struct message_port_local_port_info {
 115         messageport_message_cb callback;
 116         bool is_trusted;
 117         char *port_name;
 118         int local_id;
 119 } message_port_local_port_info_s;
 120
 121 typedef struct message_port_remote_port_info {
 122         char *sender_id;
 123         char *remote_app_id;
 124         int certificate_info;
 125         GList *port_list;
 126 } message_port_remote_app_info_s;
 127
 128 typedef struct port_list_info {
 129         char *port_name;
 130         char *encoded_bus_name;
 131         bool is_trusted;
 132         int send_sock_fd;
 133         int watcher_id;
 134         bool exist;
 135         GIOChannel *gio_read;
 136         int g_src_id;
 137 } port_list_info_s;
 138
 139 static void __callback_info_free(gpointer data)
 140 {
 141         message_port_callback_info_s *callback_info = (message_port_callback_info_s *)data;
 142         GError *error = NULL;
 143         if (callback_info == NULL)
 144                 return;
 145
 146         if (callback_info->remote_app_id)
 147                 FREE_AND_NULL(callback_info->remote_app_id);
 148
 149         if (callback_info->gio_read != NULL) {
 150                 g_io_channel_shutdown(callback_info->gio_read, TRUE, &error);
 151                 if (error) {
 152                         _LOGE("g_io_channel_shutdown error : %s", error->message);
 153                         g_error_free(error);
 154                 }
 155                 g_io_channel_unref(callback_info->gio_read);
 156                 callback_info->gio_read = NULL;
 157         }
 158
 159         if (callback_info->g_src_id != 0) {
 160                 g_source_remove(callback_info->g_src_id);
 161                 callback_info->g_src_id = 0;
 162         }
 163
 164         FREE_AND_NULL(callback_info);
 165 }
 166
 167 static void __callback_info_free_by_info(message_port_callback_info_s *callback_info)
 168 {
 169         GList *callback_info_list = g_hash_table_lookup(__callback_info_hash, GUINT_TO_POINTER(callback_info->local_id));
 170         GList *find_list;
 171
 172         if (callback_info_list == NULL)
 173                 return;
 174
 175         find_list = g_list_find(callback_info_list, callback_info);
 176         if (find_list == NULL)
 177                 return;
 178
 179         callback_info_list = g_list_remove_link(callback_info_list, find_list);
 180         __callback_info_free(callback_info);
 181         g_list_free(find_list);
 182 }
 183
 184 static void __hash_destroy_callback_info(gpointer data)
 185 {
 186
 187         GList *callback_list = (GList *)data;
 188         if (callback_list != NULL)
 189                 g_list_free_full(callback_list, __callback_info_free);
 190 }
 191
 192 static char *__get_encoded_name(const char *remote_app_id, const char *port_name, bool is_trusted)
 193 {
 194
 195         int prefix_len = strlen(MESSAGEPORT_BUS_NAME_PREFIX);
 196         int postfix_len = 1;
 197         char *postfix = is_trusted ? "1" : "0";
 198
 199         unsigned char c[MD5_DIGEST_LENGTH] = {0};
 200         char *md5_interface = NULL;
 201         char *temp;
 202         int index = 0;
 203         MD5_CTX mdContext;
 204         int encoded_bus_name_len = prefix_len + postfix_len + (MD5_DIGEST_LENGTH * 2) + 2;
 205         int bus_name_len = strlen(remote_app_id) + strlen(port_name) + 2;
 206         char *bus_name = (char *)calloc(bus_name_len, sizeof(char));
 207         if (bus_name == NULL) {
 208                 _LOGE("bus_name calloc failed");
 209                 return 0;
 210         }
 211
 212         snprintf(bus_name, bus_name_len, "%s_%s", remote_app_id, port_name);
 213
 214         MD5_Init(&mdContext);
 215         MD5_Update(&mdContext, bus_name, bus_name_len);
 216         MD5_Final(c, &mdContext);
 217
 218         md5_interface = (char *)calloc(encoded_bus_name_len , sizeof(char));
 219         if (md5_interface == NULL) {
 220                 if (bus_name)
 221                         free(bus_name);
 222
 223                 _LOGE("md5_interface calloc failed!!");
 224                 return 0;
 225         }
 226
 227         snprintf(md5_interface, encoded_bus_name_len, "%s", MESSAGEPORT_BUS_NAME_PREFIX);
 228         temp = md5_interface;
 229         temp += prefix_len;
 230
 231         for (index = 0; index < MD5_DIGEST_LENGTH; index++) {
 232                 snprintf(temp, 3, "%02x", c[index]);
 233                 temp += 2;
 234         }
 235
 236         if (postfix && postfix_len > 0)
 237                 snprintf(temp, encoded_bus_name_len - (temp - md5_interface), "%s", postfix);
 238         if (bus_name)
 239                 free(bus_name);
 240
 241         _LOGI("encoded_bus_name : %s ", md5_interface);
 242
 243         return md5_interface;
 244 }
 245
 246 static int __remote_port_compare_cb(gconstpointer a, gconstpointer b)
 247 {
 248         port_list_info_s *key1 = (port_list_info_s *)a;
 249         port_list_info_s *key2 = (port_list_info_s *)b;
 250
 251         if (key1->is_trusted == key2->is_trusted)
 252                 return strcmp(key1->port_name, key2->port_name);
 253
 254         return 1;
 255 }
 256
 257
 258 static bool __is_preloaded(const char *local_appid, const char *remote_appid)
 259 {
 260         _LOGI("IsPreloaded");
 261
 262         bool preload_local = false;
 263         bool preload_remote = false;
 264
 265         pkgmgrinfo_appinfo_h handle = NULL;
 266         int ret = pkgmgrinfo_appinfo_get_usr_appinfo(local_appid, getuid(), &handle);
 267         if (ret != PMINFO_R_OK) {
 268                 _LOGE("Failed to get the appinfo. %d", ret);
 269                 pkgmgrinfo_appinfo_destroy_appinfo(handle);
 270                 return false;
 271         }
 272         ret = pkgmgrinfo_appinfo_is_preload(handle, &preload_local);
 273         if (ret != PMINFO_R_OK) {
 274                 _LOGE("Failed to check the preloaded application. %d", ret);
 275                 pkgmgrinfo_appinfo_destroy_appinfo(handle);
 276                 return false;
 277         }
 278         pkgmgrinfo_appinfo_destroy_appinfo(handle);
 279
 280         ret = pkgmgrinfo_appinfo_get_usr_appinfo(remote_appid, getuid(), &handle);
 281         if (ret != PMINFO_R_OK) {
 282                 _LOGE("Failed to get the appinfo. %d", ret);
 283                 pkgmgrinfo_appinfo_destroy_appinfo(handle);
 284                 return false;
 285         }
 286         ret = pkgmgrinfo_appinfo_is_preload(handle, &preload_remote);
 287         if (ret != PMINFO_R_OK) {
 288                 _LOGE("Failed to check the preloaded application. %d", ret);
 289                 pkgmgrinfo_appinfo_destroy_appinfo(handle);
 290                 return false;
 291         }
 292
 293         if (preload_local && preload_remote) {
 294                 pkgmgrinfo_appinfo_destroy_appinfo(handle);
 295                 return true;
 296         }
 297         pkgmgrinfo_appinfo_destroy_appinfo(handle);
 298         return false;
 299 }
 300
 301 static int __check_certificate(const char *local_appid, const char *remote_appid)
 302 {
 303         _LOGI("CheckCertificate");
 304
 305         pkgmgrinfo_cert_compare_result_type_e res;
 306         int ret = pkgmgrinfo_pkginfo_compare_usr_app_cert_info(local_appid, remote_appid, getuid(), &res);
 307         if (ret < 0) {
 308                 _LOGE(":CheckCertificate() Failed");
 309                 return MESSAGEPORT_ERROR_IO_ERROR;
 310         }
 311         if (res != PMINFO_CERT_COMPARE_MATCH) {
 312                 _LOGE("CheckCertificate() Failed : MESSAGEPORT_ERROR_CERTIFICATE_NOT_MATCH");
 313                 return MESSAGEPORT_ERROR_CERTIFICATE_NOT_MATCH;
 314         }
 315
 316         return MESSAGEPORT_ERROR_NONE;
 317 }
 318
 319 static void on_name_appeared(GDBusConnection *connection,
 320                 const gchar     *name,
 321                 const gchar     *name_owner,
 322                 gpointer         user_data)
 323 {
 324         _LOGI("name appeared : %s %s", __app_id, name);
 325 }
 326
 327 static void on_name_vanished(GDBusConnection *connection,
 328                 const gchar     *name,
 329                 gpointer         user_data)
 330 {
 331         _LOGI("name vanished : %s", name);
 332         port_list_info_s *pli = (port_list_info_s *)user_data;
 333         if (pli == NULL) {
 334                 LOGE("NULL port info");
 335                 return;
 336         }
 337
 338         _LOGI("watcher_id :%d", pli->watcher_id);
 339         if (pli->watcher_id > 0)
 340                 g_bus_unwatch_name(pli->watcher_id);
 341         else
 342                 _LOGE("Invalid watcher_id %d", pli->watcher_id);
 343         pli->exist = false;
 344         pli->watcher_id = 0;
 345
 346 }
 347
 348 static int __get_local_port_info(int id, message_port_local_port_info_s **info)
 349 {
 350         message_port_local_port_info_s *mi = (message_port_local_port_info_s *)g_hash_table_lookup(__local_port_info, GINT_TO_POINTER(id));
 351
 352         if (mi == NULL)
 353                 return MESSAGEPORT_ERROR_INVALID_PARAMETER;
 354         *info = mi;
 355
 356         return MESSAGEPORT_ERROR_NONE;
 357 }
 358
 359 static port_list_info_s *__set_remote_port_info(const char *remote_app_id, const char *remote_port, bool is_trusted)
 360 {
 361         int ret_val = MESSAGEPORT_ERROR_NONE;
 362         port_list_info_s *port_info = (port_list_info_s *)calloc(1, sizeof(port_list_info_s));
 363
 364         if (!port_info) {
 365                 ret_val = MESSAGEPORT_ERROR_OUT_OF_MEMORY;
 366                 goto out;
 367         }
 368         port_info->port_name = strdup(remote_port);
 369         if (!port_info->port_name) {
 370                 ret_val = MESSAGEPORT_ERROR_OUT_OF_MEMORY;
 371                 goto out;
 372         }
 373         port_info->is_trusted = is_trusted;
 374         port_info->encoded_bus_name = __get_encoded_name(remote_app_id, remote_port, is_trusted);
 375         if (port_info->encoded_bus_name == NULL) {
 376                 ret_val = MESSAGEPORT_ERROR_OUT_OF_MEMORY;
 377                 goto out;
 378         }
 379         port_info->send_sock_fd = 0;
 380 out:
 381         if (ret_val != MESSAGEPORT_ERROR_NONE) {
 382                 if (port_info) {
 383                         FREE_AND_NULL(port_info->port_name);
 384                         FREE_AND_NULL(port_info->encoded_bus_name);
 385                         free(port_info);
 386                 }
 387                 return NULL;
 388         }
 389         return port_info;
 390 }
 391
 392 static message_port_remote_app_info_s *__set_remote_app_info(const char *remote_app_id, const char *remote_port, bool is_trusted)
 393 {
 394         message_port_remote_app_info_s *remote_app_info = NULL;
 395         int ret_val = MESSAGEPORT_ERROR_NONE;
 396
 397         remote_app_info = (message_port_remote_app_info_s *)calloc(1, sizeof(message_port_remote_app_info_s));
 398         if (!remote_app_info) {
 399                 ret_val = MESSAGEPORT_ERROR_OUT_OF_MEMORY;
 400                 goto out;
 401         }
 402
 403         remote_app_info->remote_app_id = strdup(remote_app_id);
 404         if (remote_app_info->remote_app_id == NULL) {
 405                 ret_val = MESSAGEPORT_ERROR_OUT_OF_MEMORY;;
 406                 goto out;
 407         }
 408
 409 out:
 410         if (ret_val != MESSAGEPORT_ERROR_NONE) {
 411                 if (remote_app_info) {
 412                         FREE_AND_NULL(remote_app_info->remote_app_id);
 413                         FREE_AND_NULL(remote_app_info);
 414                 }
 415                 return NULL;
 416         }
 417         return remote_app_info;
 418 }
 419
 420 static void __clear_disconnect_socket(port_list_info_s *port_info)
 421 {
 422         GError *error = NULL;
 423
 424         if (port_info == NULL)
 425                 return;
 426         _LOGI("__clear_disconnect_socket : fd [%d]", port_info->send_sock_fd);
 427
 428         if (port_info->gio_read != NULL) {
 429                 g_io_channel_shutdown(port_info->gio_read, TRUE, &error);
 430                 if (error) {
 431                         _LOGE("g_io_channel_shutdown error : %s", error->message);
 432                         g_error_free(error);
 433                 }
 434                 g_io_channel_unref(port_info->gio_read);
 435                 port_info->gio_read = NULL;
 436         }
 437
 438         if (port_info->g_src_id != 0) {
 439                 g_source_remove(port_info->g_src_id);
 440                 port_info->g_src_id = 0;
 441         }
 442         port_info->send_sock_fd = 0;
 443 }
 444
 445 static gboolean __socket_disconnect_handler(GIOChannel *gio,
 446                 GIOCondition cond,
 447                 gpointer data)
 448 {
 449         /* It's sender socket's gio channel so, only EOF can be received */
 450         port_list_info_s *port_info = (port_list_info_s *)data;
 451         _LOGI("__socket_disconnect_handler %d", cond);
 452         __clear_disconnect_socket(port_info);
 453         return FALSE;
 454 }
 455
 456 static void __watch_remote_port_info(port_list_info_s *port_info)
 457 {
 458         if (port_info == NULL)
 459                 return;
 460
 461         if (port_info->watcher_id < 1) {
 462                 port_info->watcher_id = g_bus_watch_name_on_connection(
 463                                 __gdbus_conn,
 464                                 port_info->encoded_bus_name,
 465                                 G_BUS_NAME_WATCHER_FLAGS_NONE,
 466                                 on_name_appeared,
 467                                 on_name_vanished,
 468                                 port_info,
 469                                 NULL);
 470         } else {
 471                 LOGI("Already watched port info");
 472                 return;
 473         }
 474 }
 475
 476 static int __get_remote_port_info(const char *remote_app_id, const char *remote_port, bool is_trusted,
 477                 message_port_remote_app_info_s **mri, port_list_info_s **pli)
 478 {
 479         message_port_remote_app_info_s *remote_app_info = NULL;
 480         port_list_info_s port_info;
 481         GList *cb_list = NULL;
 482         int ret_val = MESSAGEPORT_ERROR_NONE;
 483
 484         remote_app_info = (message_port_remote_app_info_s *)g_hash_table_lookup(__remote_app_info, remote_app_id);
 485
 486         if (remote_app_info == NULL) {
 487                 remote_app_info = __set_remote_app_info(remote_app_id, remote_port, is_trusted);
 488
 489                 if (remote_app_info == NULL) {
 490                         ret_val = MESSAGEPORT_ERROR_OUT_OF_MEMORY;
 491                         goto out;
 492                 }
 493                 g_hash_table_insert(__remote_app_info, remote_app_info->remote_app_id, remote_app_info);
 494         }
 495         *mri = remote_app_info;
 496
 497         port_info.port_name = strdup(remote_port);
 498         port_info.is_trusted = is_trusted;
 499         cb_list = g_list_find_custom(remote_app_info->port_list, &port_info,
 500                                         (GCompareFunc)__remote_port_compare_cb);
 501         if (port_info.port_name)
 502                 free(port_info.port_name);
 503         if (cb_list == NULL) {
 504                 port_list_info_s *tmp = __set_remote_port_info(remote_app_id, remote_port, is_trusted);
 505                 if (tmp == NULL) {
 506                         ret_val = MESSAGEPORT_ERROR_OUT_OF_MEMORY;
 507                         goto out;
 508                 }
 509                 remote_app_info->port_list = g_list_append(remote_app_info->port_list, tmp);
 510                 *pli = tmp;
 511         } else {
 512                 *pli = (port_list_info_s *)cb_list->data;
 513         }
 514 out:
 515
 516         return ret_val;
 517 }
 518
 519 static bool __is_local_port_registed(const char *local_port, bool trusted, int *local_id, message_port_local_port_info_s **lpi)
 520 {
 521         GHashTableIter iter;
 522         gpointer key, value;
 523
 524         g_hash_table_iter_init(&iter, __local_port_info);
 525         while (g_hash_table_iter_next(&iter, &key, &value)) {
 526                 message_port_local_port_info_s *mi = (message_port_local_port_info_s *)value;
 527
 528                 if ((mi->is_trusted == trusted) && strcmp(mi->port_name, local_port) == 0) {
 529                         *local_id = mi->local_id;
 530                         if (lpi != NULL)
 531                                 *lpi = mi;
 532                         return true;
 533                 }
 534         }
 535         return false;
 536 }
 537
 538 static int __get_sender_pid(GDBusConnection *conn, const char *sender_name)
 539 {
 540         GDBusMessage *msg = NULL;
 541         GDBusMessage *reply = NULL;
 542         GError *err = NULL;
 543         GVariant *body;
 544         int pid = 0;
 545
 546         msg = g_dbus_message_new_method_call("org.freedesktop.DBus", "/org/freedesktop/DBus",
 547                         "org.freedesktop.DBus", "GetConnectionUnixProcessID");
 548         if (!msg) {
 549                 _LOGE("Can't allocate new method call");
 550                 goto out;
 551         }
 552
 553         g_dbus_message_set_body(msg, g_variant_new("(s)", sender_name));
 554         reply = g_dbus_connection_send_message_with_reply_sync(conn, msg,
 555                                                         G_DBUS_SEND_MESSAGE_FLAGS_NONE, -1, NULL, NULL, &err);
 556
 557         if (!reply) {
 558                 if (err != NULL) {
 559                         _LOGE("Failed to get pid [%s]", err->message);
 560                         g_error_free(err);
 561                 }
 562                 goto out;
 563         }
 564
 565         body = g_dbus_message_get_body(reply);
 566         g_variant_get(body, "(u)", &pid);
 567
 568 out:
 569         if (msg)
 570                 g_object_unref(msg);
 571         if (reply)
 572                 g_object_unref(reply);
 573
 574         return pid;
 575 }
 576
 577 static int __write_socket(int fd,
 578                 const char *buffer,
 579                 unsigned int nbytes,
 580                 unsigned int *bytes_write)
 581 {
 582         unsigned int left = nbytes;
 583         ssize_t nb;
 584         int retry_cnt = 0;
 585
 586         *bytes_write = 0;
 587         while (left && (retry_cnt < MAX_RETRY_CNT)) {
 588                 nb = write(fd, buffer, left);
 589                 if (nb == -1) {
 590                         if (errno == EINTR) {
 591                                 LOGE("__write_socket: EINTR error continue ...");
 592                                 retry_cnt++;
 593                                 continue;
 594                         }
 595                         LOGE("__write_socket: ...error fd %d: errno %d\n", fd, errno);
 596                         return MESSAGEPORT_ERROR_IO_ERROR;
 597                 }
 598
 599                 left -= nb;
 600                 buffer += nb;
 601                 *bytes_write += nb;
 602                 retry_cnt = 0;
 603         }
 604         return MESSAGEPORT_ERROR_NONE;
 605 }
 606
 607 static int __write_string_to_socket(int fd, const char *buffer, int string_len)
 608 {
 609         unsigned int nb;
 610         if (__write_socket(fd, (char *)&string_len, sizeof(string_len), &nb) != MESSAGEPORT_ERROR_NONE) {
 611                 _LOGE("write string_len fail");
 612                 return MESSAGEPORT_ERROR_IO_ERROR;
 613         }
 614
 615         if (string_len > 0) {
 616                 if (__write_socket(fd, buffer, string_len, &nb) != MESSAGEPORT_ERROR_NONE) {
 617                         _LOGE("wirte buffer fail");
 618                         return MESSAGEPORT_ERROR_IO_ERROR;
 619                 }
 620         }
 621         return MESSAGEPORT_ERROR_NONE;
 622 }
 623
 624 static int __read_socket(int fd,
 625                 char *buffer,
 626                 unsigned int nbytes,
 627                 unsigned int *bytes_read)
 628 {
 629         unsigned int left = nbytes;
 630         ssize_t nb;
 631         int retry_cnt = 0;
 632         const struct timespec TRY_SLEEP_TIME = { 0, 500 * 1000 * 1000 };
 633
 634         *bytes_read = 0;
 635         while (left && (retry_cnt < MAX_RETRY_CNT)) {
 636                 nb = read(fd, buffer, left);
 637                 if (nb == 0) {
 638                         LOGE("__read_socket: ...read EOF, socket closed %d: nb %d\n", fd, nb);
 639                         return MESSAGEPORT_ERROR_IO_ERROR;
 640                 } else if (nb == -1) {
 641                         /*  wrt(nodejs) could change socket to none-blocking socket :-( */
 642                         if (errno == EINTR || errno == EAGAIN || errno == EWOULDBLOCK) {
 643                                 LOGE("__read_socket: %d errno, sleep and retry ...", errno);
 644                                 retry_cnt++;
 645                                 nanosleep(&TRY_SLEEP_TIME, 0);
 646                                 continue;
 647                         }
 648                         LOGE("__read_socket: ...error fd %d: errno %d\n", fd, errno);
 649                         return MESSAGEPORT_ERROR_IO_ERROR;
 650                 }
 651
 652                 left -= nb;
 653                 buffer += nb;
 654                 *bytes_read += nb;
 655                 retry_cnt = 0;
 656         }
 657         return MESSAGEPORT_ERROR_NONE;
 658 }
 659
 660 static int __read_string_from_socket(int fd, char **buffer, int *string_len)
 661 {
 662         unsigned int nb;
 663         if (__read_socket(fd, (char *)string_len, sizeof(*string_len), &nb) != MESSAGEPORT_ERROR_NONE) {
 664                 LOGE("read socket fail");
 665                 return MESSAGEPORT_ERROR_IO_ERROR;
 666         }
 667         if (*string_len > 0 && *string_len < MAX_MESSAGE_SIZE) {
 668                 *buffer = (char *)calloc(*string_len, sizeof(char));
 669                 if (*buffer == NULL) {
 670                         LOGE("Out of memory.");
 671                         return MESSAGEPORT_ERROR_IO_ERROR;
 672                 }
 673                 if (__read_socket(fd, *buffer, *string_len, &nb) != MESSAGEPORT_ERROR_NONE) {
 674                         LOGE("read socket fail");
 675                         return MESSAGEPORT_ERROR_IO_ERROR;
 676                 }
 677         } else {
 678                 LOGE("Invalid string len %d", *string_len);
 679                 return MESSAGEPORT_ERROR_IO_ERROR;
 680         }
 681         return MESSAGEPORT_ERROR_NONE;
 682 }
 683
 684 message_port_pkt_s *__message_port_recv_raw(int fd)
 685 {
 686         message_port_pkt_s *pkt = NULL;
 687         unsigned int nb;
 688
 689         pkt = (message_port_pkt_s *)calloc(sizeof(message_port_pkt_s), 1);
 690         if (pkt == NULL) {
 691                 close(fd);
 692                 return NULL;
 693         }
 694
 695         if (__read_string_from_socket(fd, (char **)&pkt->remote_port_name, &pkt->remote_port_name_len) != MESSAGEPORT_ERROR_NONE) {
 696                 LOGE("read socket fail: port_name");
 697                 free(pkt->remote_port_name);
 698                 free(pkt);
 699                 return NULL;
 700         }
 701
 702         if (__read_socket(fd, (char *)&pkt->is_bidirection, sizeof(pkt->is_bidirection), &nb) != MESSAGEPORT_ERROR_NONE) {
 703                 LOGE("read socket fail: is_bidirection");
 704                 free(pkt->remote_port_name);
 705                 free(pkt);
 706                 return NULL;
 707         }
 708
 709         if (__read_socket(fd, (char *)&pkt->is_trusted, sizeof(pkt->is_trusted), &nb) != MESSAGEPORT_ERROR_NONE) {
 710                 LOGE("read socket fail: is_trusted");
 711                 free(pkt->remote_port_name);
 712                 free(pkt);
 713                 return NULL;
 714         }
 715
 716         if (__read_string_from_socket(fd, (char **)&pkt->data, &pkt->data_len) != MESSAGEPORT_ERROR_NONE) {
 717                 LOGE("read socket fail: data");
 718                 free(pkt->remote_port_name);
 719                 free(pkt);
 720                 return NULL;
 721         }
 722
 723         return pkt;
 724 }
 725
 726 static gboolean __socket_request_handler(GIOChannel *gio,
 727                 GIOCondition cond,
 728                 gpointer data)
 729 {
 730         int fd = 0;
 731         message_port_callback_info_s *mi;
 732         message_port_pkt_s *pkt;
 733         bundle *kb = NULL;
 734         GError *error = NULL;
 735
 736         mi = (message_port_callback_info_s *)data;
 737         if (mi == NULL) {
 738
 739                 g_io_channel_shutdown(gio, TRUE, &error);
 740                 if (error) {
 741                         _LOGE("g_io_channel_shutdown error : %s", error->message);
 742                         g_error_free(error);
 743                 }
 744                 g_io_channel_unref(gio);
 745                 return FALSE;
 746         }
 747
 748         if (cond == G_IO_HUP) {
 749
 750                 _LOGI("socket G_IO_HUP");
 751                 __callback_info_free_by_info(mi);
 752                 return FALSE;
 753
 754         } else {
 755
 756                 if ((fd = g_io_channel_unix_get_fd(gio)) < 0) {
 757                         _LOGE("fail to get fd from io channel");
 758                         __callback_info_free_by_info(mi);
 759                         return FALSE;
 760                 }
 761
 762                 if ((pkt = __message_port_recv_raw(fd)) == NULL) {
 763                         _LOGE("recv error on SOCKET");
 764                         __callback_info_free_by_info(mi);
 765                         return FALSE;
 766                 }
 767
 768                 kb = bundle_decode(pkt->data, pkt->data_len);
 769                 if (pkt->is_bidirection)
 770                         mi->callback(mi->local_id, mi->remote_app_id, pkt->remote_port_name, pkt->is_trusted, kb, NULL);
 771                 else
 772                         mi->callback(mi->local_id, mi->remote_app_id, NULL, pkt->is_trusted, kb, NULL);
 773
 774                 bundle_free(kb);
 775                 if (pkt) {
 776                         if (pkt->remote_port_name)
 777                                 free(pkt->remote_port_name);
 778                         if (pkt->data)
 779                                 free(pkt->data);
 780                         free(pkt);
 781                 }
 782         }
 783
 784         return TRUE;
 785 }
 786
 787 static bool send_message(GVariant *parameters, GDBusMethodInvocation *invocation)
 788 {
 789         char *local_port = NULL;
 790         char *local_appid = NULL;
 791         char *remote_appid = NULL;
 792         char *remote_port = NULL;
 793         gboolean local_trusted = false;
 794         gboolean remote_trusted = false;
 795         gboolean bi_dir = false;
 796         int len = 0;
 797
 798         bundle *data = NULL;
 799         bundle_raw *raw = NULL;
 800         message_port_local_port_info_s *mi;
 801         int local_reg_id = 0;
 802         message_port_callback_info_s *callback_info;
 803         message_port_callback_info_s *head_callback_info;
 804         GList *callback_info_list = NULL;
 805
 806         char buf[1024];
 807         GDBusMessage *msg;
 808         GUnixFDList *fd_list;
 809         int fd_len;
 810         int *returned_fds = NULL;
 811         int fd;
 812
 813         g_variant_get(parameters, "(&s&sbb&s&sbu&s)", &local_appid, &local_port, &local_trusted, &bi_dir,
 814                         &remote_appid, &remote_port, &remote_trusted, &len, &raw);
 815
 816         if (!remote_port) {
 817                 _LOGE("Invalid argument : remote_port is NULL");
 818                 goto out;
 819         }
 820         if (!remote_appid) {
 821                 _LOGE("Invalid argument : remote_appid is NULL");
 822                 goto out;
 823         }
 824         if (!__is_local_port_registed(remote_port, remote_trusted, &local_reg_id, &mi)) {
 825                 _LOGE("Invalid argument : remote_port:(%s) trusted(%d)", remote_port, remote_trusted);
 826                 goto out;
 827         }
 828         if (!local_appid) {
 829                 _LOGE("Invalid argument : local_appid");
 830                 goto out;
 831         }
 832         if (!local_port) {
 833                 _LOGE("Invalid argument : local_port");
 834                 goto out;
 835         }
 836         if (strcmp(remote_appid, __app_id) != 0) {
 837                 _LOGE("Invalid argument : remote_appid (%s)", remote_appid);
 838                 goto out;
 839         }
 840         if (strcmp(remote_port, mi->port_name) != 0) {
 841                 _LOGE("Invalid argument : remote_port (%s)", remote_port);
 842                 goto out;
 843         }
 844         if (!len) {
 845                 _LOGE("Invalid argument : data_len");
 846                 goto out;
 847         }
 848         if (remote_trusted) {
 849                 if (g_hash_table_lookup(__trusted_app_list_hash, (gpointer)local_appid) == NULL) {
 850                         if (!__is_preloaded(local_appid, remote_appid)) {
 851                                 int ret = __check_certificate(local_appid, remote_appid);
 852                                 if (ret == MESSAGEPORT_ERROR_NONE)
 853                                         g_hash_table_insert(__trusted_app_list_hash, local_appid, "TRUE");
 854                                 else {
 855                                         _LOGE("The application (%s) is not signed with the same certificate",
 856                                                         local_appid);
 857                                         goto out;
 858                                 }
 859                         }
 860                 }
 861         }
 862
 863         callback_info = (message_port_callback_info_s *)calloc(1, sizeof(message_port_callback_info_s));
 864         if (callback_info == NULL)
 865                 goto out;
 866
 867         callback_info->local_id = mi->local_id;
 868         callback_info->remote_app_id = strdup(local_appid);
 869         callback_info->callback = mi->callback;
 870
 871         msg = g_dbus_method_invocation_get_message(invocation);
 872         fd_list = g_dbus_message_get_unix_fd_list(msg);
 873
 874         /* When application send message to self fd_list is NULL */
 875         if (fd_list != NULL) {
 876                 returned_fds = g_unix_fd_list_steal_fds(fd_list, &fd_len);
 877                 if (returned_fds == NULL) {
 878                         _LOGE("fail to get fds");
 879                         __callback_info_free(callback_info);
 880                         return false;
 881                 }
 882                 fd = returned_fds[0];
 883
 884                 LOGI("g_unix_fd_list_get %d fd: [%d]", fd_len, fd);
 885                 if (fd > 0) {
 886
 887                         callback_info->gio_read = g_io_channel_unix_new(fd);
 888                         if (!callback_info->gio_read) {
 889                                 _LOGE("Error is %s\n", strerror_r(errno, buf, sizeof(buf)));
 890                                 __callback_info_free(callback_info);
 891                                 return false;
 892                         }
 893
 894                         callback_info->g_src_id = g_io_add_watch(callback_info->gio_read, G_IO_IN | G_IO_HUP,
 895                                         __socket_request_handler, (gpointer)callback_info);
 896                         if (callback_info->g_src_id == 0) {
 897                                 _LOGE("fail to add watch on socket");
 898                                 __callback_info_free(callback_info);
 899                                 return false;
 900                         }
 901
 902                         callback_info_list = g_hash_table_lookup(__callback_info_hash, GUINT_TO_POINTER(mi->local_id));
 903                         if (callback_info_list == NULL) {
 904                                 head_callback_info = (message_port_callback_info_s *)calloc(1, sizeof(message_port_callback_info_s));
 905                                 if (head_callback_info == NULL) {
 906                                         _LOGE("fail to alloc head_callback_info");
 907                                         __callback_info_free(callback_info);
 908                                         return false;
 909                                 }
 910                                 head_callback_info->local_id = 0;
 911                                 head_callback_info->remote_app_id = NULL;
 912                                 head_callback_info->callback = NULL;
 913                                 head_callback_info->gio_read = NULL;
 914                                 head_callback_info->g_src_id = 0;
 915                                 callback_info_list = g_list_append(callback_info_list, head_callback_info);
 916                                 callback_info_list = g_list_append(callback_info_list, callback_info);
 917                                 g_hash_table_insert(__callback_info_hash, GUINT_TO_POINTER(mi->local_id), callback_info_list);
 918                         } else {
 919                                 callback_info_list = g_list_append(callback_info_list, callback_info);
 920                         }
 921                 }
 922         }
 923
 924         data = bundle_decode(raw, len);
 925         if (!data) {
 926                 _LOGE("Invalid argument : message");
 927                 goto out;
 928         }
 929
 930         LOGI("call calback %s", local_appid);
 931         if (bi_dir)
 932                 mi->callback(mi->local_id, local_appid, local_port, local_trusted, data, NULL);
 933         else
 934                 mi->callback(mi->local_id, local_appid, NULL, false, data, NULL);
 935         bundle_free(data);
 936 out:
 937         if (returned_fds)
 938                 free(returned_fds);
 939
 940         return true;
 941 }
 942
 943 static int __check_remote_port(const char *remote_app_id, const char *remote_port, bool is_trusted, bool *exist)
 944 {
 945         _LOGI("Check a remote port : [%s:%s]", remote_app_id, remote_port);
 946
 947         GVariant *result = NULL;
 948         GError *err = NULL;
 949         int ret_val = MESSAGEPORT_ERROR_NONE;
 950         char *bus_name = NULL;
 951         message_port_remote_app_info_s *remote_app_info = NULL;
 952         port_list_info_s *port_info = NULL;
 953         int local_reg_id = 0;
 954         message_port_local_port_info_s *mi = NULL;
 955         gboolean name_exist = false;
 956
 957         _LOGI("remote_app_id, app_id :[%s : %s] ", remote_app_id, __app_id);
 958
 959         ret_val = __get_remote_port_info(remote_app_id, remote_port, is_trusted, &remote_app_info, &port_info);
 960         if (ret_val != MESSAGEPORT_ERROR_NONE)
 961                 return ret_val;
 962
 963         /* self check */
 964         if (strcmp(remote_app_id, __app_id) == 0) {
 965
 966                 _LOGI("__is_local_port_registed ");
 967                 if (!__is_local_port_registed(remote_port, is_trusted, &local_reg_id, &mi))
 968                         *exist = false;
 969                 else
 970                         *exist = true;
 971
 972                 _LOGI("__is_local_port_registed : %d ", *exist);
 973                 return MESSAGEPORT_ERROR_NONE;
 974         }
 975
 976         port_info->exist = false;
 977         bus_name = port_info->encoded_bus_name;
 978
 979         result = g_dbus_connection_call_sync(
 980                         __gdbus_conn,
 981                         DBUS_SERVICE_DBUS,
 982                         DBUS_PATH_DBUS,
 983                         DBUS_INTERFACE_DBUS,
 984                         "NameHasOwner",
 985                         g_variant_new("(s)", bus_name),
 986                         G_VARIANT_TYPE("(b)"),
 987                         G_DBUS_CALL_FLAGS_NONE,
 988                         -1,
 989                         NULL,
 990                         &err);
 991
 992         if (err || (result == NULL)) {
 993                 if (err) {
 994                         _LOGE("No reply. error = %s", err->message);
 995                         g_error_free(err);
 996                 }
 997                 ret_val = MESSAGEPORT_ERROR_RESOURCE_UNAVAILABLE;
 998         } else {
 999                 g_variant_get(result, "(b)", &name_exist);
1000
1001                 if (!name_exist) {
1002                         LOGE("Name not exist %s", bus_name);
1003                         *exist = false;
1004                         ret_val = MESSAGEPORT_ERROR_NONE;
1005                 } else {
1006
1007                         if (is_trusted) {
1008                                 if (remote_app_info->certificate_info != CERTIFICATE_MATCH) {
1009                                         if (!__is_preloaded(__app_id, remote_app_id)) {
1010                                                 if (__check_certificate(__app_id, remote_app_id) != MESSAGEPORT_ERROR_NONE) {
1011                                                         ret_val = MESSAGEPORT_ERROR_CERTIFICATE_NOT_MATCH;
1012                                                         goto out;
1013                                                 }
1014                                         }
1015                                         remote_app_info->certificate_info = CERTIFICATE_MATCH;
1016                                 }
1017                         }
1018                         port_info->exist = true;
1019                         *exist = true;
1020                         ret_val = MESSAGEPORT_ERROR_NONE;
1021                         __watch_remote_port_info(port_info);
1022                 }
1023         }
1024 out:
1025         if (result)
1026                 g_variant_unref(result);
1027
1028         return ret_val;
1029 }
1030
1031 static void __on_sender_name_appeared(GDBusConnection *connection,
1032                 const gchar     *name,
1033                 const gchar     *name_owner,
1034                 gpointer         user_data)
1035 {
1036         _LOGI("sender name appeared : %s", name);
1037 }
1038
1039 static void __on_sender_name_vanished(GDBusConnection *connection,
1040                 const gchar     *name,
1041                 gpointer         user_data)
1042 {
1043         gboolean remove_result = FALSE;
1044         int *watcher_id = (int *)user_data;
1045         remove_result = g_hash_table_remove(__sender_appid_hash, (gpointer)name);
1046         if (!remove_result)
1047                 _LOGE("Fail to remove sender appid from hash : %s", name);
1048
1049         if (watcher_id) {
1050                 if (*watcher_id > 0)
1051                         g_bus_unwatch_name(*watcher_id);
1052                 else
1053                         LOGE("Invalid watcher_id %d", *watcher_id);
1054                 free(watcher_id);
1055         } else {
1056                 LOGE("watcher_id is NULL");
1057         }
1058 }
1059
1060 static bool __check_sender_validation(GVariant *parameters, const char *sender, GDBusConnection *conn)
1061 {
1062         int ret = 0;
1063         char buffer[MAX_PACKAGE_STR_SIZE] = {0, };
1064         char *local_appid = NULL;
1065         int pid = __get_sender_pid(conn, sender);
1066         int *watcher_id = (int *)calloc(1, sizeof(int));
1067
1068         ret = aul_app_get_appid_bypid(pid, buffer, sizeof(buffer));
1069         if (ret != AUL_R_OK) {
1070                 _LOGE("Failed to get the sender ID: (%s) (%d)", sender, pid);
1071                 free(watcher_id);
1072                 return false;
1073         }
1074
1075         g_variant_get_child(parameters, 0, "&s", &local_appid);
1076         if (local_appid == NULL) {
1077                 _LOGE("appid is NULL : (%s) (%d)", sender, pid);
1078                 free(watcher_id);
1079                 return false;
1080         }
1081
1082         if (strncmp(buffer, local_appid, MAX_PACKAGE_STR_SIZE) == 0) {
1083                 _LOGI("insert sender !!!!! %s", sender);
1084                 g_hash_table_insert(__sender_appid_hash, (gpointer)strdup(sender), GINT_TO_POINTER(pid));
1085                 *watcher_id = g_bus_watch_name_on_connection(
1086                                         __gdbus_conn,
1087                                         sender,
1088                                         G_BUS_NAME_WATCHER_FLAGS_NONE,
1089                                         __on_sender_name_appeared,
1090                                         __on_sender_name_vanished,
1091                                         watcher_id,
1092                                         NULL);
1093         } else {
1094                 free(watcher_id);
1095                 return false;
1096         }
1097         return true;
1098 }
1099
1100 static void __dbus_method_call_handler(GDBusConnection *conn,
1101                                 const gchar *sender, const gchar *object_path,
1102                                 const gchar *iface_name, const gchar *method_name,
1103                                 GVariant *parameters, GDBusMethodInvocation *invocation,
1104                                 gpointer user_data)
1105 {
1106         _LOGI("method_name: %s, sender: %s", method_name, sender);
1107         gpointer sender_pid = g_hash_table_lookup(__sender_appid_hash, sender);
1108         if (sender_pid == NULL) {
1109                 if (!__check_sender_validation(parameters, sender, conn))
1110                         goto out;
1111         }
1112         if (g_strcmp0(method_name, "send_message") == 0)
1113                 send_message(parameters, invocation);
1114 out:
1115         g_dbus_method_invocation_return_value(invocation, NULL);
1116 }
1117
1118 static const GDBusInterfaceVTable interface_vtable = {
1119         __dbus_method_call_handler,
1120         NULL,
1121         NULL
1122 };
1123
1124 static int __dbus_init(void)
1125 {
1126         bool ret = false;
1127         GError *error = NULL;
1128
1129         __gdbus_conn = g_bus_get_sync(G_BUS_TYPE_SESSION, NULL, &error);
1130         if (__gdbus_conn == NULL) {
1131                 if (error != NULL) {
1132                         _LOGE("Failed to get dbus [%s]", error->message);
1133                         g_error_free(error);
1134                 }
1135                 goto out;
1136         }
1137
1138         ret = true;
1139
1140 out:
1141         if (!__gdbus_conn)
1142                 g_object_unref(__gdbus_conn);
1143
1144         return ret;
1145
1146 }
1147
1148 int __register_dbus_interface(const char *port_name, bool is_trusted)
1149 {
1150
1151         GDBusNodeInfo *introspection_data = NULL;
1152         int registration_id = 0;
1153
1154         static gchar introspection_prefix[] =
1155                 "<node>"
1156                 "  <interface name='";
1157
1158         static gchar introspection_postfix[] =
1159                 "'>"
1160                 "        <method name='send_message'>"
1161                 "          <arg type='s' name='local_appid' direction='in'/>"
1162                 "          <arg type='s' name='local_port' direction='in'/>"
1163                 "          <arg type='b' name='local_trusted' direction='in'/>"
1164                 "          <arg type='b' name='bi_dir' direction='in'/>"
1165                 "          <arg type='s' name='remote_appid' direction='in'/>"
1166                 "          <arg type='s' name='remote_port' direction='in'/>"
1167                 "          <arg type='b' name='remote_trusted' direction='in'/>"
1168                 "          <arg type='u' name='data_len' direction='in'/>"
1169                 "          <arg type='s' name='data' direction='in'/>"
1170                 "        </method>"
1171                 "  </interface>"
1172                 "</node>";
1173
1174         char *introspection_xml = NULL;
1175         int introspection_xml_len = 0;
1176
1177
1178         int owner_id = 0;
1179         GError *error = NULL;
1180         char *bus_name = NULL;
1181         char *interface_name = NULL;
1182         GVariant *result = NULL;
1183
1184         bus_name = __get_encoded_name(__app_id, port_name, is_trusted);
1185         if (!bus_name) {
1186                 _LOGE("Fail to get bus name");
1187                 goto out;
1188         }
1189         interface_name = bus_name;
1190
1191         introspection_xml_len = strlen(introspection_prefix) + strlen(interface_name) +
1192                 strlen(introspection_postfix) + 1;
1193
1194         introspection_xml = (char *)calloc(introspection_xml_len, sizeof(char));
1195         if (!introspection_xml) {
1196                 _LOGE("out of memory");
1197                 goto out;
1198         }
1199
1200
1201         result = g_dbus_connection_call_sync(
1202                         __gdbus_conn,
1203                         DBUS_SERVICE_DBUS,
1204                         DBUS_PATH_DBUS,
1205                         DBUS_INTERFACE_DBUS,
1206                         "RequestName",
1207                         g_variant_new("(su)", bus_name, G_BUS_NAME_OWNER_FLAGS_NONE),
1208                         G_VARIANT_TYPE("(u)"),
1209                         G_DBUS_CALL_FLAGS_NONE,
1210                         -1,
1211                         NULL,
1212                         &error);
1213         if (error) {
1214                 _LOGE("RequestName fail : %s", error->message);
1215                 g_error_free(error);
1216                 goto out;
1217         }
1218         if (result == NULL) {
1219                 _LOGE("fail to get name NULL");
1220                 goto out;
1221         }
1222         g_variant_get(result, "(u)", &owner_id);
1223         if (owner_id == 0) {
1224                 _LOGE("Acquiring the own name is failed");
1225                 goto out;
1226         }
1227
1228         _LOGI("Acquiring the own name : %d", owner_id);
1229
1230         snprintf(introspection_xml, introspection_xml_len, "%s%s%s", introspection_prefix, interface_name, introspection_postfix);
1231
1232         introspection_data = g_dbus_node_info_new_for_xml(introspection_xml, NULL);
1233         if (!introspection_data) {
1234                 _LOGE("g_dbus_node_info_new_for_xml() is failed.");
1235                 goto out;
1236         }
1237
1238         registration_id = g_dbus_connection_register_object(__gdbus_conn,
1239                                                 MESSAGEPORT_OBJECT_PATH, introspection_data->interfaces[0],
1240                                                 &interface_vtable, NULL, NULL, NULL);
1241
1242         _LOGI("registration_id %d", registration_id);
1243
1244         if (registration_id == 0) {
1245                 _LOGE("Failed to g_dbus_connection_register_object");
1246                 goto out;
1247         }
1248
1249 out:
1250         if (introspection_data)
1251                 g_dbus_node_info_unref(introspection_data);
1252         if (introspection_xml)
1253                 free(introspection_xml);
1254         if (bus_name)
1255                 free(bus_name);
1256         if (result)
1257                 g_variant_unref(result);
1258
1259
1260         return registration_id;
1261 }
1262
1263 /* LCOV_EXCL_START */
1264 void __list_free_port_list(gpointer data)
1265 {
1266         port_list_info_s *n = (port_list_info_s *)data;
1267
1268         FREE_AND_NULL(n->encoded_bus_name);
1269         FREE_AND_NULL(n->port_name);
1270         FREE_AND_NULL(n);
1271 }
1272 /* LCOV_EXCL_STOP */
1273
1274 /* LCOV_EXCL_START */
1275 static void __hash_destory_local_value(gpointer data)
1276 {
1277         message_port_local_port_info_s *mli = (message_port_local_port_info_s *)data;
1278         if (mli) {
1279                 if (mli->port_name)
1280                         free(mli->port_name);
1281                 free(mli);
1282         }
1283 }
1284 /* LCOV_EXCL_STOP */
1285
1286 /* LCOV_EXCL_START */
1287 static void __hash_destory_remote_value(gpointer data)
1288 {
1289         message_port_remote_app_info_s *mri = (message_port_remote_app_info_s *)data;
1290         if (mri) {
1291                 FREE_AND_NULL(mri->sender_id);
1292                 FREE_AND_NULL(mri->remote_app_id);
1293                 if (mri->port_list)
1294                         g_list_free_full(mri->port_list, __list_free_port_list);
1295
1296                 free(mri);
1297         }
1298 }
1299 /* LCOV_EXCL_STOP */
1300
1301 static bool __initialize(void)
1302 {
1303
1304 #if !GLIB_CHECK_VERSION(2, 35, 0)
1305         g_type_init();
1306 #endif
1307
1308         int pid = getpid();
1309         int ret = 0;
1310         char buffer[MAX_PACKAGE_STR_SIZE] = {0, };
1311
1312         _LOGI("initialize");
1313         ret = aul_app_get_appid_bypid(pid, buffer, sizeof(buffer));
1314         retvm_if(ret != AUL_R_OK, false, "Failed to get the application ID: %d", ret);
1315
1316         __app_id = strdup(buffer);
1317         retvm_if(!__app_id, false, "Malloc failed");
1318         _LOGI("init : %s", __app_id);
1319
1320         if (__local_port_info == NULL) {
1321                 __local_port_info = g_hash_table_new_full(g_direct_hash,  g_direct_equal, NULL, __hash_destory_local_value);
1322                 retvm_if(!__local_port_info, false, "fail to create __local_port_info");
1323         }
1324
1325         if (__remote_app_info == NULL) {
1326                 __remote_app_info = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, __hash_destory_remote_value);
1327                 retvm_if(!__remote_app_info, false, "fail to create __remote_app_info");
1328         }
1329
1330         if (__sender_appid_hash == NULL) {
1331                 __sender_appid_hash = g_hash_table_new_full(g_str_hash, g_str_equal, free, NULL);
1332                 retvm_if(!__sender_appid_hash, false, "fail to create __sender_appid_hash");
1333         }
1334
1335         if (__trusted_app_list_hash == NULL) {
1336                 __trusted_app_list_hash = g_hash_table_new(g_str_hash, g_str_equal);
1337                 retvm_if(!__trusted_app_list_hash, false, "fail to create __trusted_app_list_hash");
1338         }
1339
1340         if (__callback_info_hash == NULL) {
1341                 __callback_info_hash = g_hash_table_new_full(g_direct_hash, g_direct_equal, NULL, __hash_destroy_callback_info);
1342                 retvm_if(!__trusted_app_list_hash, false, "fail to create __trusted_app_list_hash");
1343         }
1344
1345         if (!__dbus_init())
1346                 return false;
1347         _initialized = true;
1348
1349         return true;
1350 }
1351
1352
1353 static bool __message_port_register_port(const int local_id, const char *local_port, bool is_trusted, messageport_message_cb callback)
1354 {
1355         message_port_local_port_info_s *mi = (message_port_local_port_info_s *)calloc(1, sizeof(message_port_local_port_info_s));
1356         retvm_if(!mi, false, "Malloc failed");
1357
1358         mi->callback = callback;
1359         mi->is_trusted = is_trusted;
1360         mi->port_name = strdup(local_port);
1361         if (mi->port_name == NULL) {
1362                 _LOGE("Malloc failed (%s)", local_port);
1363                 free(mi);
1364                 return false;
1365         }
1366         mi->local_id = local_id;
1367
1368         g_hash_table_insert(__local_port_info, GINT_TO_POINTER(mi->local_id), mi);
1369         return true;
1370 }
1371
1372 static int __register_message_port(const char *local_port, bool is_trusted, messageport_message_cb callback)
1373 {
1374         _SECURE_LOGI("Register a message port : [%s:%s]", __app_id, local_port);
1375
1376         int local_id = 0;
1377
1378         /* Check the message port is already registed */
1379         if (__is_local_port_registed(local_port, is_trusted, &local_id, NULL))
1380                 return local_id;
1381
1382         local_id = __register_dbus_interface(local_port, is_trusted);
1383         if (local_id < 1) {
1384                 _LOGE("register_dbus_interface fail !!");
1385                 return MESSAGEPORT_ERROR_OUT_OF_MEMORY;
1386         }
1387
1388         if (!__message_port_register_port(local_id, local_port, is_trusted, callback))
1389                 return MESSAGEPORT_ERROR_OUT_OF_MEMORY;
1390
1391         return local_id;
1392 }
1393
1394 int __message_port_send_async(int sockfd, bundle *kb, const char *local_port,
1395                 bool local_trusted, bool is_bidirection)
1396 {
1397         int ret = 0;
1398         int data_len;
1399         int local_port_len = 0;
1400         unsigned int nb;
1401         bundle_raw *kb_data = NULL;
1402
1403         bundle_encode(kb, &kb_data, &data_len);
1404         if (kb_data == NULL) {
1405                 _LOGE("bundle encode fail");
1406                 ret = MESSAGEPORT_ERROR_IO_ERROR;
1407                 goto out;
1408         }
1409
1410         if (data_len > MAX_MESSAGE_SIZE) {
1411                 _LOGE("bigger than max size\n");
1412                 ret = MESSAGEPORT_ERROR_MAX_EXCEEDED;
1413                 goto out;
1414         }
1415
1416         if (local_port != NULL)
1417                 local_port_len = strlen(local_port) + 1;
1418
1419         if (__write_string_to_socket(sockfd, local_port, local_port_len) != MESSAGEPORT_ERROR_NONE) {
1420                 _LOGE("write local_port fail");
1421                 ret = MESSAGEPORT_ERROR_IO_ERROR;
1422                 goto out;
1423         }
1424
1425         if (__write_socket(sockfd, (char *)&is_bidirection, sizeof(is_bidirection), &nb) != MESSAGEPORT_ERROR_NONE) {
1426                 _LOGE("write is_bidirection fail");
1427                 ret = MESSAGEPORT_ERROR_IO_ERROR;
1428                 goto out;
1429         }
1430
1431         if (__write_socket(sockfd, (char *)&local_trusted, sizeof(local_trusted), &nb) != MESSAGEPORT_ERROR_NONE) {
1432                 _LOGE("write local_trusted fail");
1433                 ret = MESSAGEPORT_ERROR_IO_ERROR;
1434                 goto out;
1435         }
1436
1437         if (__write_string_to_socket(sockfd, (void *)kb_data, data_len) != MESSAGEPORT_ERROR_NONE) {
1438                 _LOGE("write kb_data fail");
1439                 ret = MESSAGEPORT_ERROR_IO_ERROR;
1440                 goto out;
1441         }
1442 out:
1443         if (kb_data)
1444                 free(kb_data);
1445
1446         return ret;
1447 }
1448
1449 static int __message_port_send_message(const char *remote_appid, const char *remote_port,
1450                 const char *local_port, bool trusted_message, bool local_trusted, bool bi_dir, bundle *message)
1451 {
1452
1453         int ret = MESSAGEPORT_ERROR_NONE;
1454         GUnixFDList *fd_list = NULL;
1455
1456         int len = 0;
1457         bundle_raw *raw = NULL;
1458         char *bus_name = NULL;
1459         char *interface_name = NULL;
1460
1461         message_port_remote_app_info_s *remote_app_info = NULL;
1462         port_list_info_s *port_info = NULL;
1463         GDBusMessage *msg = NULL;
1464         GError *err = NULL;
1465         GVariant *body = NULL;
1466         int sock_pair[2] = {0,};
1467         char buf[1024];
1468
1469         ret = __get_remote_port_info(remote_appid, remote_port, trusted_message, &remote_app_info, &port_info);
1470         if (ret != MESSAGEPORT_ERROR_NONE)
1471                 return ret;
1472
1473         if (port_info->exist == false) {
1474                 bool exist = false;
1475                 _LOGI("port exist check !!");
1476                 ret =  __check_remote_port(remote_appid, remote_port, trusted_message, &exist);
1477                 if (ret != MESSAGEPORT_ERROR_NONE) {
1478                         goto out;
1479                 } else if (!exist) {
1480                         ret = MESSAGEPORT_ERROR_MESSAGEPORT_NOT_FOUND;
1481                         goto out;
1482                 }
1483         }
1484
1485         if (port_info->send_sock_fd > 0) {
1486                 ret = __message_port_send_async(port_info->send_sock_fd, message,
1487                                 (local_port) ? local_port : "", local_trusted, bi_dir);
1488         } else {
1489
1490                 bus_name = port_info->encoded_bus_name;
1491                 interface_name = bus_name;
1492
1493                 if (bundle_encode(message, &raw, &len) != BUNDLE_ERROR_NONE) {
1494                         ret = MESSAGEPORT_ERROR_INVALID_PARAMETER;
1495                         goto out;
1496                 }
1497
1498                 if (MAX_MESSAGE_SIZE < len) {
1499                         _LOGE("The size of message (%d) has exceeded the maximum limit.", len);
1500                         ret = MESSAGEPORT_ERROR_MAX_EXCEEDED;
1501                         goto out;
1502                 }
1503
1504                 body = g_variant_new("(ssbbssbus)", __app_id, (local_port) ? local_port : "", local_trusted, bi_dir,
1505                                 remote_appid, remote_port, trusted_message, len, raw);
1506                 if (strcmp(remote_appid, __app_id) != 0) { /* self send */
1507
1508                         /*  if message-port fail to get socket pair, communicate using GDBus */
1509                         if (aul_request_message_port_socket_pair(sock_pair) != AUL_R_OK) {
1510                                 _LOGE("error create socket pair");
1511                         } else {
1512
1513                                 _LOGI("sock pair : %d, %d",
1514                                                 sock_pair[SOCK_PAIR_SENDER], sock_pair[SOCK_PAIR_RECEIVER]);
1515                                 fd_list = g_unix_fd_list_new();
1516                                 g_unix_fd_list_append(fd_list, sock_pair[SOCK_PAIR_RECEIVER], &err);
1517                                 if (err != NULL) {
1518                                         _LOGE("g_unix_fd_list_append [%s]", err->message);
1519                                         ret = MESSAGEPORT_ERROR_IO_ERROR;
1520                                         g_error_free(err);
1521                                         goto out;
1522                                 }
1523
1524                                 port_info->send_sock_fd = sock_pair[SOCK_PAIR_SENDER];
1525                                 close(sock_pair[SOCK_PAIR_RECEIVER]);
1526                                 sock_pair[SOCK_PAIR_RECEIVER] = 0;
1527
1528                                 port_info->gio_read = g_io_channel_unix_new(port_info->send_sock_fd);
1529                                 if (!port_info->gio_read) {
1530                                         _LOGE("Error is %s\n", strerror_r(errno, buf, sizeof(buf)));
1531                                         ret = MESSAGEPORT_ERROR_IO_ERROR;
1532                                         goto out;
1533                                 }
1534
1535                                 port_info->g_src_id = g_io_add_watch(port_info->gio_read, G_IO_IN | G_IO_HUP,
1536                                                 __socket_disconnect_handler, (gpointer)port_info);
1537                                 if (port_info->g_src_id == 0) {
1538                                         _LOGE("fail to add watch on socket");
1539                                         ret = MESSAGEPORT_ERROR_IO_ERROR;
1540                                         goto out;
1541                                 }
1542
1543                         }
1544                 }
1545
1546                 msg = g_dbus_message_new_method_call(bus_name, MESSAGEPORT_OBJECT_PATH, interface_name, "send_message");
1547                 if (!msg) {
1548                         _LOGE("Can't allocate new method call");
1549                         ret = MESSAGEPORT_ERROR_OUT_OF_MEMORY;
1550                         goto out;
1551                 }
1552
1553                 g_dbus_message_set_unix_fd_list(msg, fd_list);
1554                 g_dbus_message_set_body(msg, body);
1555                 g_dbus_connection_send_message(__gdbus_conn, msg, G_DBUS_SEND_MESSAGE_FLAGS_NONE, NULL, &err);
1556                 if (err != NULL) {
1557                         _LOGE("No reply. error = %s", err->message);
1558                         g_error_free(err);
1559                         ret = MESSAGEPORT_ERROR_IO_ERROR;
1560                         goto out;
1561                 }
1562                 __watch_remote_port_info(port_info);
1563
1564         }
1565
1566 out:
1567         if (msg)
1568                 g_object_unref(msg);
1569         if (raw)
1570                 bundle_free_encoded_rawdata(&raw);
1571         if (fd_list)
1572                 g_object_unref(fd_list);
1573
1574         if (ret != MESSAGEPORT_ERROR_NONE) {
1575                 __clear_disconnect_socket(port_info);
1576                 if (sock_pair[SOCK_PAIR_SENDER])
1577                         close(sock_pair[SOCK_PAIR_SENDER]);
1578                 if (sock_pair[SOCK_PAIR_RECEIVER])
1579                         close(sock_pair[SOCK_PAIR_RECEIVER]);
1580         }
1581
1582         return ret;
1583 }
1584
1585 int __message_send_bidirectional_message(int id, const char *remote_app_id, const char *remote_port,  bool trusted_message, bundle *message)
1586 {
1587         message_port_local_port_info_s *local_info;
1588         int ret = __get_local_port_info(id, &local_info);
1589         if (ret != MESSAGEPORT_ERROR_NONE)
1590                 return ret;
1591
1592         _LOGI("bidirectional_message %s", local_info->port_name);
1593         return __message_port_send_message(remote_app_id, remote_port,
1594                         local_info->port_name, trusted_message, local_info->is_trusted, true, message);
1595 }
1596
1597 int messageport_unregister_local_port(int local_port_id, bool trusted_port)
1598 {
1599
1600         GVariant *result;
1601         char *bus_name = NULL;
1602         GError *err = NULL;
1603         int ret = 0;
1604
1605         _LOGI("unregister : %d", local_port_id);
1606
1607         message_port_local_port_info_s *mi =
1608                 (message_port_local_port_info_s *)
1609                 g_hash_table_lookup(__local_port_info, GINT_TO_POINTER(local_port_id));
1610         if (mi == NULL)
1611                 return MESSAGEPORT_ERROR_MESSAGEPORT_NOT_FOUND;
1612
1613         if (mi->is_trusted != trusted_port)
1614                 return MESSAGEPORT_ERROR_INVALID_PARAMETER;
1615
1616         g_hash_table_remove(__callback_info_hash, GUINT_TO_POINTER(local_port_id));
1617
1618         bus_name = __get_encoded_name(__app_id, mi->port_name, mi->is_trusted);
1619         if (bus_name == NULL)
1620                 return MESSAGEPORT_ERROR_OUT_OF_MEMORY;
1621
1622         g_dbus_connection_unregister_object(__gdbus_conn, local_port_id);
1623
1624         result = g_dbus_connection_call_sync(
1625                         __gdbus_conn,
1626                         DBUS_SERVICE_DBUS,
1627                         DBUS_PATH_DBUS,
1628                         DBUS_INTERFACE_DBUS,
1629                         "ReleaseName",
1630                         g_variant_new("(s)", bus_name),
1631                         G_VARIANT_TYPE("(u)"),
1632                         G_DBUS_CALL_FLAGS_NONE,
1633                         -1,
1634                         NULL,
1635                         &err);
1636
1637         if (bus_name)
1638                 free(bus_name);
1639
1640         if (err) {
1641                 _LOGE("RequestName fail : %s", err->message);
1642                 g_error_free(err);
1643                 return MESSAGEPORT_ERROR_MESSAGEPORT_NOT_FOUND;
1644         }
1645         g_variant_get(result, "(u)", &ret);
1646
1647         if (result)
1648                 g_variant_unref(result);
1649
1650         if (ret != DBUS_RELEASE_NAME_REPLY_RELEASED) {
1651
1652                 if (ret == DBUS_RELEASE_NAME_REPLY_NON_EXISTENT) {
1653                         _LOGE("Port Not exist");
1654                         return MESSAGEPORT_ERROR_MESSAGEPORT_NOT_FOUND;
1655                 } else if (ret == DBUS_RELEASE_NAME_REPLY_NOT_OWNER) {
1656                         _LOGE("Try to release not owned name. MESSAGEPORT_ERROR_INVALID_PARAMETER");
1657                         return MESSAGEPORT_ERROR_INVALID_PARAMETER;
1658                 }
1659         }
1660
1661
1662         g_hash_table_remove(__local_port_info, GINT_TO_POINTER(local_port_id));
1663
1664         return MESSAGEPORT_ERROR_NONE;
1665 }
1666
1667 int messageport_register_local_port(const char *local_port, messageport_message_cb callback)
1668 {
1669         if (!_initialized) {
1670                 if (!__initialize())
1671                         return MESSAGEPORT_ERROR_IO_ERROR;
1672         }
1673
1674         return __register_message_port(local_port, false, callback);
1675 }
1676
1677 int messageport_register_trusted_local_port(const char *local_port, messageport_message_cb callback)
1678 {
1679         if (!_initialized) {
1680                 if (!__initialize())
1681                         return MESSAGEPORT_ERROR_IO_ERROR;
1682         }
1683
1684         return __register_message_port(local_port, true, callback);
1685
1686 }
1687
1688 int messageport_check_remote_port(const char *remote_app_id, const char *remote_port, bool *exist)
1689 {
1690         if (!_initialized) {
1691                 if (!__initialize())
1692                         return MESSAGEPORT_ERROR_IO_ERROR;
1693         }
1694
1695         int ret = __check_remote_port(remote_app_id, remote_port, false, exist);
1696         if (ret == MESSAGEPORT_ERROR_MESSAGEPORT_NOT_FOUND) {
1697                 *exist = false;
1698                 ret = MESSAGEPORT_ERROR_NONE;
1699         }
1700
1701         return ret;
1702 }
1703
1704 int messageport_check_trusted_remote_port(const char *remote_app_id, const char *remote_port, bool *exist)
1705 {
1706         if (!_initialized) {
1707                 if (!__initialize())
1708                         return MESSAGEPORT_ERROR_IO_ERROR;
1709         }
1710
1711         int ret = __check_remote_port(remote_app_id, remote_port, true, exist);
1712         if (ret == MESSAGEPORT_ERROR_MESSAGEPORT_NOT_FOUND) {
1713                 *exist = false;
1714                 ret = MESSAGEPORT_ERROR_NONE;
1715         }
1716
1717         return ret;
1718 }
1719
1720 int messageport_send_message(const char *remote_app_id, const char *remote_port, bundle *message)
1721 {
1722         if (!_initialized) {
1723                 if (!__initialize())
1724                         return MESSAGEPORT_ERROR_IO_ERROR;
1725         }
1726
1727         return __message_port_send_message(remote_app_id, remote_port, NULL, false, false, false, message);
1728 }
1729
1730 int messageport_send_trusted_message(const char *remote_app_id, const char *remote_port, bundle *message)
1731 {
1732         if (!_initialized) {
1733                 if (!__initialize())
1734                         return MESSAGEPORT_ERROR_IO_ERROR;
1735         }
1736
1737         return __message_port_send_message(remote_app_id, remote_port, NULL, true, false, false, message);
1738 }
1739
1740 int messageport_send_bidirectional_message(int id, const char *remote_app_id, const char *remote_port,
1741                 bundle *message)
1742 {
1743         if (!_initialized) {
1744                 if (!__initialize())
1745                         return MESSAGEPORT_ERROR_IO_ERROR;
1746         }
1747
1748         return __message_send_bidirectional_message(id, remote_app_id, remote_port, false, message);
1749 }
1750
1751 int messageport_send_bidirectional_trusted_message(int id, const char *remote_app_id, const char *remote_port,
1752                 bundle *message)
1753 {
1754         if (!_initialized) {
1755                 if (!__initialize())
1756                         return MESSAGEPORT_ERROR_IO_ERROR;
1757         }
1758         return __message_send_bidirectional_message(id, remote_app_id, remote_port, true, message);
1759 }
1760