src/monitor/stc-monitor.c

   1 /*
   2  * Copyright (c) 2016 Samsung Electronics Co., Ltd.
   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 #include <linux/netlink.h>
  18
  19 #include "stc-default-connection.h"
  20 #include "helper-nl.h"
  21 #include "helper-nfacct-rule.h"
  22 #include "helper-net-cls.h"
  23 #include "helper-cgroup.h"
  24 #include "counter.h"
  25 #include "table-statistics.h"
  26 #include "table-counters.h"
  27 #include "stc-monitor.h"
  28 #include "stc-manager-plugin.h"
  29
  30 #define MAX_INT_LENGTH 128
  31
  32 typedef struct {
  33         stc_app_key_s *app_key;
  34         stc_process_key_s *proc_key;
  35         gboolean entry_removed;
  36 } remove_pid_context_s;
  37
  38 typedef struct {
  39         struct nfacct_rule *counter;
  40         int64_t bytes;
  41         gboolean data_limit_reached;
  42 } classid_bytes_context_s;
  43
  44 static stc_system_s *g_system = NULL;
  45
  46 static nfacct_rule_jump __get_jump_by_intend(struct nfacct_rule *counter)
  47 {
  48         if (counter->intend == NFACCT_WARN)
  49                 return NFACCT_JUMP_ACCEPT;
  50         else if (counter->intend == NFACCT_BLOCK)
  51                 return NFACCT_JUMP_REJECT;
  52
  53         return NFACCT_JUMP_UNKNOWN;
  54 }
  55
  56 static stc_error_e __add_iptables_in(struct nfacct_rule *counter)
  57 {
  58         return produce_net_rule(counter, 0, 0,
  59                 NFACCT_ACTION_INSERT, __get_jump_by_intend(counter),
  60                 NFACCT_COUNTER_IN);
  61 }
  62
  63 static stc_error_e __add_iptables_out(struct nfacct_rule *counter)
  64 {
  65         return produce_net_rule(counter, 0, 0,
  66                 NFACCT_ACTION_INSERT, __get_jump_by_intend(counter),
  67                 NFACCT_COUNTER_OUT);
  68 }
  69
  70 static stc_error_e __del_iptables_in(struct nfacct_rule *counter)
  71 {
  72         return produce_net_rule(counter, 0, 0,
  73                 NFACCT_ACTION_DELETE, __get_jump_by_intend(counter),
  74                 NFACCT_COUNTER_IN);
  75 }
  76
  77 static stc_error_e __del_iptables_out(struct nfacct_rule *counter)
  78 {
  79         return produce_net_rule(counter, 0, 0,
  80                 NFACCT_ACTION_DELETE, __get_jump_by_intend(counter),
  81                 NFACCT_COUNTER_OUT);
  82 }
  83
  84 static int __processes_tree_key_compare(gconstpointer a, gconstpointer b,
  85                                         gpointer UNUSED user_data)
  86 {
  87         stc_process_key_s *key_a = (stc_process_key_s *)a;
  88         stc_process_key_s *key_b = (stc_process_key_s *)b;
  89
  90         return key_a->pid - key_b->pid;
  91 }
  92
  93 static void __processes_tree_value_free(gpointer data)
  94 {
  95         stc_process_value_s *value = (stc_process_value_s *)data;
  96
  97         FREE(value);
  98 }
  99
 100 static void __processes_tree_key_free(gpointer data)
 101 {
 102         stc_process_key_s *key = (stc_process_key_s *)data;
 103
 104         FREE(key);
 105 }
 106
 107 static int __apps_tree_key_compare(gconstpointer a, gconstpointer b,
 108                                    gpointer UNUSED user_data)
 109 {
 110         stc_app_key_s *key_a = (stc_app_key_s *)a;
 111         stc_app_key_s *key_b = (stc_app_key_s *)b;
 112         gint ret;
 113
 114         ret = g_strcmp0(key_a->pkg_id, key_b->pkg_id);
 115         if (ret)
 116                 return ret;
 117
 118         return g_strcmp0(key_a->app_id, key_b->app_id);
 119 }
 120
 121 static void __apps_tree_value_free(gpointer data)
 122 {
 123         stc_app_value_s *value = (stc_app_value_s *)data;
 124
 125         g_tree_destroy(value->processes);
 126         value->processes = NULL;
 127
 128         FREE(value);
 129 }
 130
 131 static void __apps_tree_key_free(gpointer data)
 132 {
 133         stc_app_key_s *key = (stc_app_key_s *)data;
 134
 135         g_free(key->pkg_id);
 136         g_free(key->app_id);
 137         FREE(key);
 138 }
 139
 140 static int __rstns_tree_key_compare(gconstpointer a, gconstpointer b,
 141                                     gpointer UNUSED user_data)
 142 {
 143         stc_rstn_key_s *key_a = (stc_rstn_key_s *)a;
 144         stc_rstn_key_s *key_b = (stc_rstn_key_s *)b;
 145         int ret;
 146
 147         ret = g_strcmp0(key_a->app_id, key_b->app_id);
 148         if (ret != 0)
 149                 return ret;
 150
 151         ret = g_strcmp0(key_a->ifname, key_b->ifname);
 152         if (ret != 0)
 153                 return ret;
 154
 155         ret = g_strcmp0(key_a->imsi, key_b->imsi);
 156         if (ret != 0)
 157                 return ret;
 158
 159         ret = key_a->iftype - key_b->iftype;
 160         if (ret != 0)
 161                 return ret;
 162
 163         return 0;
 164 }
 165
 166 static void __rstns_tree_value_free(gpointer data)
 167 {
 168         stc_rstn_value_s *value = (stc_rstn_value_s *)data;
 169
 170         FREE(value);
 171 }
 172
 173 static void __rstns_tree_key_free(gpointer data)
 174 {
 175         stc_rstn_key_s *key = (stc_rstn_key_s *)data;
 176
 177         FREE(key->app_id);
 178         FREE(key->ifname);
 179         FREE(key->imsi);
 180         FREE(key);
 181 }
 182
 183 static gboolean __processes_tree_foreach_print(gpointer key, gpointer value,
 184                                                gpointer data)
 185 {
 186         stc_process_key_s *proc_key = (stc_process_key_s *)key;
 187         stc_process_value_s *proc_value = (stc_process_value_s *)value;
 188
 189         STC_LOGD("Process entry => PID [%d], Ground state [%d]",
 190                  proc_key->pid, proc_value->ground);
 191         return FALSE;
 192 }
 193
 194 static void __processes_tree_printall(GTree *processes)
 195 {
 196         g_tree_foreach(processes, __processes_tree_foreach_print, NULL);
 197 }
 198
 199 static gboolean __apps_tree_foreach_print(gpointer key, gpointer value,
 200                                           gpointer data)
 201 {
 202         stc_app_key_s *app_key = (stc_app_key_s *)key;
 203         stc_app_value_s *app_value = (stc_app_value_s *)value;
 204
 205         STC_LOGD("Application info => Pkg ID [%s], App ID [%s],"
 206                  " Type [%d], classid [%d],"
 207                  " counter [ in (%lld), out (%lld)]",
 208                  app_key->pkg_id, app_key->app_id,
 209                  app_value->type, app_value->classid,
 210                  app_value->data_usage.in_bytes, app_value->data_usage.out_bytes);
 211
 212         __processes_tree_printall(app_value->processes);
 213         return FALSE;
 214 }
 215
 216 #if 0
 217 static void __apps_tree_printall(void)
 218 {
 219         g_tree_foreach(g_system->apps, __apps_tree_foreach_print, NULL);
 220 }
 221 #endif
 222
 223 static gboolean __apps_tree_foreach_remove_pid(gpointer key, gpointer value,
 224                                                gpointer data)
 225 {
 226         remove_pid_context_s *context = (remove_pid_context_s *)data;
 227         stc_app_value_s *app_value = (stc_app_value_s *)value;
 228
 229         if (!g_tree_remove(app_value->processes, context->proc_key)) {
 230                 STC_LOGD("key not found");
 231                 return FALSE;
 232         }
 233
 234         context->entry_removed = TRUE;
 235         context->app_key = (stc_app_key_s *)key;
 236
 237         return TRUE;
 238 }
 239
 240 static stc_app_value_s * __application_lookup(GTree *apps,
 241                                               const stc_app_key_s *key)
 242 {
 243         stc_app_value_s *lookup;
 244
 245         ret_value_msg_if(apps == NULL, NULL, "apps is null!");
 246
 247         lookup = g_tree_lookup(apps, key);
 248
 249         return lookup;
 250 }
 251
 252 static stc_process_value_s * __process_lookup(GTree *processes,
 253                                               const stc_process_key_s *key)
 254 {
 255         stc_process_value_s *lookup;
 256
 257         ret_value_msg_if(processes == NULL, NULL, "processes is null!");
 258
 259         lookup = g_tree_lookup(processes, key);
 260
 261         return lookup;
 262 }
 263
 264 static gboolean __processes_tree_check_empty(gpointer key, gpointer value,
 265                                              gpointer data)
 266 {
 267         guint *pid_count = (guint *)data;
 268         (*pid_count)++;
 269         return TRUE;
 270 }
 271
 272 static gboolean __add_application_monitor(gpointer key, gpointer value,
 273                                           gpointer data)
 274 {
 275         stc_app_value_s *app_value = (stc_app_value_s *)value;
 276         default_connection_s *connection = (default_connection_s *)data;
 277         stc_s *stc = stc_get_manager();
 278
 279         if (stc && connection && connection->ifname) {
 280                 struct nfacct_rule counter;
 281
 282                 if (!stc->carg) {
 283                         stc->carg = MALLOC0(counter_arg_s, 1);
 284                         stc->carg->sock = stc_monitor_get_counter_socket();
 285                 }
 286
 287                 memset(&counter, 0, sizeof(struct nfacct_rule));
 288
 289                 counter.carg = stc->carg;
 290                 counter.classid = app_value->classid;
 291                 counter.intend = NFACCT_COUNTER;
 292                 g_strlcpy(counter.ifname, connection->ifname, MAX_IFACE_LENGTH);
 293
 294                 __add_iptables_in(&counter);
 295                 __add_iptables_out(&counter);
 296         }
 297
 298         return FALSE;
 299 }
 300
 301 static gboolean __remove_application_monitor(gpointer key, gpointer value,
 302                                              gpointer data)
 303 {
 304         stc_app_value_s *app_value = (stc_app_value_s *)value;
 305         default_connection_s *connection = (default_connection_s *)data;
 306         stc_s *stc = stc_get_manager();
 307
 308         if (stc && connection && connection->ifname) {
 309                 struct nfacct_rule counter;
 310
 311                 if (!stc->carg) {
 312                         stc->carg = MALLOC0(counter_arg_s, 1);
 313                         stc->carg->sock = stc_monitor_get_counter_socket();
 314                 }
 315
 316                 memset(&counter, 0, sizeof(struct nfacct_rule));
 317
 318                 counter.carg = stc->carg;
 319                 counter.classid = app_value->classid;
 320                 counter.intend = NFACCT_COUNTER;
 321                 g_strlcpy(counter.ifname, connection->ifname, MAX_IFACE_LENGTH);
 322
 323                 __del_iptables_in(&counter);
 324                 __del_iptables_out(&counter);
 325         }
 326
 327         return FALSE;
 328 }
 329
 330 static void __print_rstn(stc_rstn_key_s *rstn_key, stc_rstn_value_s *rstn_value)
 331 {
 332         STC_LOGI("rstn info => rstn_id [%llu], "
 333                  "app_id [%s], classid [%lu], ifname [%s], "
 334                  "iftype [%d], rst_state [%d], "
 335                  "limit [ (%lld) bytes], "
 336                  "warn_limit [ (%lld) bytes], "
 337                  "counter [ (%lld) bytes], "
 338                  "roaming [%d], imsi [%s]",
 339                  rstn_value->restriction_id,
 340                  rstn_key->app_id, rstn_value->classid , rstn_key->ifname,
 341                  rstn_key->iftype, rstn_value->rst_state,
 342                  rstn_value->data_limit,
 343                  rstn_value->data_warn_limit,
 344                  rstn_value->data_counter,
 345                  rstn_key->roaming, rstn_key->imsi);
 346 }
 347
 348 static void __process_restriction(enum traffic_restriction_type rst_type,
 349                                   stc_rstn_key_s *rstn_key,
 350                                   stc_rstn_value_s *rstn_value, void *data)
 351 {
 352         int64_t effective_data_limit, effective_data_warn_limit;
 353         default_connection_s *old_connection = (default_connection_s *)data;
 354         default_connection_s *connection = NULL;
 355
 356         if (old_connection != NULL)
 357                 connection = old_connection;
 358         else
 359                 connection = stc_get_default_connection();
 360
 361         /* no default ifname */
 362         if (connection->ifname == NULL)
 363                 return;
 364
 365         /* rstn not applicable for this interface */
 366         if (rstn_key->ifname != NULL && g_strcmp0("", rstn_key->ifname) != 0 &&
 367             g_strcmp0(connection->ifname, rstn_key->ifname) != 0)
 368                 return;
 369
 370         /* classid is invalid */
 371         if (rstn_value->classid == STC_UNKNOWN_CLASSID)
 372                 return;
 373
 374         effective_data_limit = rstn_value->data_limit;
 375         effective_data_warn_limit = rstn_value->data_warn_limit;
 376
 377         if (rst_type == RST_SET) {
 378                 /* TODO: Change this to runtime memory */
 379                 table_counters_info info;
 380
 381                 memset(&info, 0, sizeof(table_counters_info));
 382                 table_counters_get(rstn_value->restriction_id, &info);
 383
 384                 effective_data_limit -= info.data_counter;
 385                 effective_data_warn_limit -= info.data_counter;
 386
 387                 if (effective_data_limit < 0) {
 388                         effective_data_limit = 0;
 389                         rstn_value->data_limit_reached = TRUE;
 390                 }
 391
 392                 if (effective_data_warn_limit < 0)
 393                         effective_data_warn_limit = 0;
 394
 395                 STC_LOGD("datausage [%lld] bytes", info.data_counter);
 396         }
 397
 398         STC_LOGD("rstn_id [%llu], effective_data_limit [%lld] bytes, "
 399                  "effective_data_warn_limit [%lld] bytes",
 400                  rstn_value->restriction_id, effective_data_limit,
 401                  effective_data_warn_limit);
 402
 403         switch (rst_type) {
 404         case RST_SET:
 405                 rstn_value->rst_state = STC_RESTRICTION_ACTIVATED;
 406                 rstn_value->data_limit_reached = FALSE;
 407                 break;
 408         case RST_EXCLUDE:
 409                 ;//Do Nothing
 410                 break;
 411         case RST_UNSET:
 412                 rstn_value->rst_state = STC_RESTRICTION_REMOVED;
 413                 rstn_value->data_limit_reached = FALSE;
 414                 break;
 415         default:
 416                 ;//Do Nothing
 417         }
 418 }
 419
 420 static gboolean __remove_rstns_foreach_application(gpointer key,
 421                                                    gpointer value,
 422                                                    gpointer data)
 423 {
 424         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 425         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 426         gchar *app_id = (gchar *)data;
 427
 428         /* rstn rule is not for applications */
 429         if (rstn_key->app_id == NULL)
 430                 goto out;
 431
 432         /* rstn rule is not for this application */
 433         if (g_strcmp0(rstn_key->app_id, app_id) != 0)
 434                 goto out;
 435
 436         /* rstn rule is already removed */
 437         if (rstn_value->rst_state == STC_RESTRICTION_REMOVED)
 438                 goto out;
 439
 440         /* remove restriction from system */
 441         __process_restriction(RST_UNSET, rstn_key, rstn_value, data);
 442
 443         __print_rstn(rstn_key, rstn_value);
 444 out:
 445         return FALSE;
 446 }
 447
 448 static void __remove_rstns_for_application(gchar *app_id)
 449 {
 450         g_tree_foreach(g_system->rstns, __remove_rstns_foreach_application,
 451                        app_id);
 452 }
 453
 454 static stc_error_e __application_remove_if_empty(const stc_app_key_s *app_key)
 455 {
 456         stc_error_e ret = STC_ERROR_NONE;
 457         guint pid_count = 0;
 458         stc_app_value_s *lookup;
 459
 460         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
 461
 462         lookup = __application_lookup(g_system->apps, app_key);
 463         if (!lookup) {
 464                 STC_LOGE("app_key not found");
 465                 return STC_ERROR_NO_DATA;
 466         }
 467
 468         g_tree_foreach(lookup->processes, __processes_tree_check_empty,
 469                        &pid_count);
 470
 471         if (!pid_count) {
 472                 /* remove nfacct rule for this classid */
 473                 __remove_application_monitor((gpointer) app_key, lookup,
 474                                              stc_get_default_connection());
 475                 __remove_rstns_for_application(app_key->app_id);
 476         }
 477
 478         if (!g_tree_remove(g_system->apps, app_key)) {
 479                 ret = STC_ERROR_NO_DATA;
 480                 STC_LOGE("key not found");
 481         }
 482
 483         return ret;
 484 }
 485
 486 static stc_error_e __close_contr_sock(stc_system_s *system)
 487 {
 488         ret_value_msg_if(system == NULL, STC_ERROR_INVALID_PARAMETER, "invalid parameter");
 489
 490         /* close netlink socket for updating kernel counters */
 491         if (g_system->contr_sock != -1) {
 492                 close(g_system->contr_sock);
 493                 g_system->contr_sock = -1;
 494         }
 495
 496         if (g_system->contr_gsource_id != 0) {
 497                 g_source_remove(g_system->contr_gsource_id);
 498                 g_system->contr_gsource_id = 0;
 499         }
 500
 501         return STC_ERROR_NONE;
 502 }
 503
 504 static gboolean __rstn_counter_update_foreach_classid(gpointer key,
 505                                                       gpointer value,
 506                                                       gpointer data)
 507 {
 508         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 509         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 510         classid_bytes_context_s *context = (classid_bytes_context_s *)data;
 511
 512         if (context->counter->intend != NFACCT_COUNTER)
 513                 goto try_next_callback;
 514
 515         if (rstn_value->classid != context->counter->classid)
 516                 goto try_next_callback;
 517
 518         if (rstn_value->data_limit_reached == TRUE) {
 519                 context->data_limit_reached = TRUE;
 520                 goto try_next_callback;
 521         }
 522
 523         switch (context->counter->iotype) {
 524         case NFACCT_COUNTER_IN:
 525         case NFACCT_COUNTER_OUT:
 526                 rstn_value->data_counter += context->bytes;
 527
 528                 if (rstn_value->data_counter >= rstn_value->data_warn_limit &&
 529                     rstn_value->warn_limit_crossed_notified == FALSE) {
 530
 531                         gboolean rv = FALSE;
 532                         char iftype[MAX_INT_LENGTH];
 533                         char byte[MAX_INT_LENGTH];
 534                         stc_s *stc = (stc_s *)stc_get_manager();
 535                         ret_value_msg_if(stc == NULL, FALSE, "failed to get stc data");
 536
 537                         /* emit signal */
 538                         rv = stc_manager_dbus_emit_signal(stc->connection,
 539                                                           STC_DBUS_SERVICE_RESTRICTION_PATH,
 540                                                           STC_DBUS_INTERFACE_RESTRICTION,
 541                                                           "WarnThresholdCrossed",
 542                                                           g_variant_new("(s)", rstn_key->app_id));
 543                         if (rv == TRUE)
 544                                 rstn_value->warn_limit_crossed_notified = TRUE;
 545
 546                         snprintf(iftype, MAX_INT_LENGTH, "%d", rstn_key->iftype);
 547                         snprintf(byte, MAX_INT_LENGTH, "%lld", rstn_value->data_warn_limit);
 548                         stc_send_warn_message_to_net_popup("warn threshold crossed",
 549                                                            "warning_noti",
 550                                                            rstn_key->app_id,
 551                                                            iftype, byte);
 552                 }
 553
 554                 if (rstn_value->data_counter >= rstn_value->data_limit &&
 555                     rstn_value->rstn_limit_crossed_notified == FALSE) {
 556
 557                         gboolean rv = FALSE;
 558                         char iftype[MAX_INT_LENGTH];
 559                         char byte[MAX_INT_LENGTH];
 560                         stc_s *stc = (stc_s *)stc_get_manager();
 561                         ret_value_msg_if(stc == NULL, FALSE, "failed to get stc data");
 562
 563                         /* block immediately */
 564                         context->counter->intend = NFACCT_BLOCK;
 565                         __del_iptables_in(context->counter);
 566                         __del_iptables_out(context->counter);
 567                         __add_iptables_in(context->counter);
 568                         __add_iptables_out(context->counter);
 569                         context->counter->intend = NFACCT_COUNTER;
 570
 571                         rstn_value->data_limit_reached = TRUE;
 572
 573                         /* emit signal */
 574                         rv = stc_manager_dbus_emit_signal(stc->connection,
 575                                                           STC_DBUS_SERVICE_RESTRICTION_PATH,
 576                                                           STC_DBUS_INTERFACE_RESTRICTION,
 577                                                           "RestrictionThresholdCrossed",
 578                                                           g_variant_new("(s)", rstn_key->app_id));
 579                         if (rv == TRUE)
 580                                 rstn_value->rstn_limit_crossed_notified = TRUE;
 581
 582                         snprintf(iftype, MAX_INT_LENGTH, "%d", rstn_key->iftype);
 583                         snprintf(byte, MAX_INT_LENGTH, "%lld", rstn_value->data_limit);
 584                         stc_send_restriction_message_to_net_popup("restriction threshold crossed",
 585                                                                   "restriction_noti", rstn_key->app_id,
 586                                                                   iftype, byte);
 587                 }
 588
 589                 g_system->rstns_tree_updated = TRUE;
 590                 __print_rstn(rstn_key, rstn_value);
 591                 break;
 592         default:
 593                 STC_LOGE("unknown iotype");
 594         }
 595
 596
 597 try_next_callback:
 598         return FALSE;
 599 }
 600
 601 static gboolean __update_app_statistics(gpointer key, gpointer value,
 602                                         gpointer data)
 603 {
 604         stc_app_key_s *app_key = (stc_app_key_s *)key;
 605         stc_app_value_s *app_value = (stc_app_value_s *)value;
 606         time_t *touch_time = (time_t *)data;
 607         stc_db_classid_iftype_key stat_key;
 608         stc_db_app_stats stat;
 609         char *default_ifname = stc_default_connection_get_ifname();
 610
 611         memset(&stat_key, 0, sizeof(stc_db_classid_iftype_key));
 612         memset(&stat, 0 , sizeof(stc_db_app_stats));
 613
 614         stat_key.classid = app_value->classid;
 615         stat_key.iftype = stc_default_connection_get_type();
 616         if (STC_IFACE_DATACALL == stat_key.iftype)
 617                 stat_key.imsi = g_strdup("unknown");
 618         else
 619                 stat_key.imsi = g_strdup("noneimsi");
 620         g_strlcpy(stat_key.ifname, default_ifname, MAX_IFACE_LENGTH);
 621
 622         stat.app_id = g_strdup(app_key->app_id);
 623         stat.snd_count = app_value->counter.out_bytes;
 624         stat.rcv_count = app_value->counter.in_bytes;
 625         stat.is_roaming = stc_default_connection_get_roaming();
 626         stat.ground = STC_APP_STATE_UNKNOWN;
 627
 628         table_statistics_insert(&stat_key, &stat, *touch_time);
 629
 630         app_value->counter.out_bytes = 0;
 631         app_value->counter.in_bytes = 0;
 632
 633         FREE(stat.app_id);
 634         FREE(stat_key.imsi);
 635         FREE(default_ifname);
 636
 637         return FALSE;
 638 }
 639
 640 static gboolean __flush_apps_stats_to_database(gpointer user_data)
 641 {
 642         time_t current_time = time(0);
 643
 644         if (g_system->apps_tree_updated == FALSE)
 645                 return G_SOURCE_REMOVE;
 646
 647         g_system->apps_tree_updated = FALSE;
 648
 649         if (g_system->apps)
 650                 g_tree_foreach(g_system->apps,
 651                                __update_app_statistics,
 652                                &current_time);
 653
 654         STC_LOGI("Flushed app stats to database");
 655         return G_SOURCE_REMOVE;
 656 }
 657
 658 static gboolean __update_counter_statistics(gpointer key, gpointer value,
 659                                             gpointer data)
 660 {
 661         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 662         table_counters_info info = {
 663                 .restriction_id = rstn_value->restriction_id,
 664                 .data_counter = rstn_value->data_counter
 665         };
 666
 667         table_counters_update_counters(&info);
 668
 669         return FALSE;
 670 }
 671
 672 static gboolean __flush_rstns_counter_to_database(gpointer user_data)
 673 {
 674         time_t current_time = time(0);
 675
 676         if (g_system->rstns_tree_updated == FALSE)
 677                 return G_SOURCE_REMOVE;
 678
 679         g_system->rstns_tree_updated = FALSE;
 680
 681         if (g_system->rstns)
 682                 g_tree_foreach(g_system->rstns,
 683                                __update_counter_statistics,
 684                                &current_time);
 685
 686         STC_LOGI("Flushed rstns counters to database");
 687         return G_SOURCE_REMOVE;
 688 }
 689
 690 static gboolean __apps_counter_update_foreach_classid(gpointer key,
 691                                                       gpointer value,
 692                                                       gpointer data)
 693 {
 694         stc_app_key_s *app_key = (stc_app_key_s *)key;
 695         stc_app_value_s *app_value = (stc_app_value_s *)value;
 696         classid_bytes_context_s *context = (classid_bytes_context_s *)data;
 697
 698         if (context->counter->intend != NFACCT_COUNTER)
 699                 goto try_next_callback;
 700
 701         if (app_value->classid != context->counter->classid)
 702                 goto try_next_callback;
 703
 704         switch (context->counter->iotype) {
 705         case NFACCT_COUNTER_IN:
 706                 app_value->data_usage.in_bytes += context->bytes;
 707                 app_value->counter.in_bytes = context->bytes;
 708                 g_system->apps_tree_updated = TRUE;
 709
 710                 __apps_tree_foreach_print(app_key, app_value, NULL);
 711                 break;
 712         case NFACCT_COUNTER_OUT:
 713                 app_value->data_usage.out_bytes += context->bytes;
 714                 app_value->counter.out_bytes = context->bytes;
 715                 g_system->apps_tree_updated = TRUE;
 716
 717                 __apps_tree_foreach_print(app_key, app_value, NULL);
 718                 break;
 719         default:
 720                 STC_LOGE("unknown iotype");
 721         }
 722
 723 try_next_callback:
 724         return FALSE;
 725 }
 726
 727 static void __fill_nfacct_result(char *cnt_name, int64_t bytes,
 728                                  struct counter_arg *carg)
 729 {
 730         struct nfacct_rule counter = {
 731                 .carg = carg,
 732                 .name = {0},
 733                 .ifname = {0},
 734                 0
 735         };
 736
 737         classid_bytes_context_s context = {
 738                 .counter = &counter,
 739                 .bytes = bytes,
 740                 .data_limit_reached = FALSE,
 741         };
 742
 743         STC_LOGD("cnt_name %s", cnt_name);
 744
 745         if (!recreate_counter_by_name(cnt_name, &counter)) {
 746                 STC_LOGE("Can't parse counter name %s", cnt_name);
 747                 return;
 748         }
 749
 750         STC_LOGI("classid %lu, iftype %u, iotype %d, intend %d, ifname %s, bytes %lld",
 751                  context.counter->classid, context.counter->iftype,
 752                  context.counter->iotype, context.counter->intend,
 753                  context.counter->ifname, context.bytes);
 754
 755         if (g_system->rstns)
 756                 g_tree_foreach(g_system->rstns,
 757                                __rstn_counter_update_foreach_classid,
 758                                &context);
 759
 760         if (g_system->apps)
 761                 g_tree_foreach(g_system->apps,
 762                                __apps_counter_update_foreach_classid,
 763                                &context);
 764 }
 765
 766 static int __fill_counters(struct rtattr *attr_list[__NFACCT_MAX],
 767                            void *user_data)
 768 {
 769         struct counter_arg *carg = user_data;
 770         char *cnt_name = (char *)RTA_DATA(attr_list[NFACCT_NAME]);
 771         if (carg->initiate) {
 772                 /**
 773                  * TODO: this will be used when daemon starts to update existing
 774                  * counter data if present.
 775                  *
 776                  populate_counters(cnt_name, carg);
 777                  */
 778         } else {
 779                 int64_t *bytes_p =
 780                         (int64_t *)RTA_DATA(attr_list[NFACCT_BYTES]);
 781                 int bytes = be64toh(*bytes_p);
 782                 if (bytes) {
 783                         ++carg->serialized_counters;
 784                         __fill_nfacct_result(cnt_name, bytes, carg);
 785                 }
 786         }
 787
 788         return 0;
 789 }
 790
 791 static int __post_fill_counters(void *user_data)
 792 {
 793         struct counter_arg *carg = user_data;
 794
 795         if (carg->initiate)
 796                 carg->initiate = 0;
 797
 798         return 0;
 799 }
 800
 801 static void __process_network_counter(struct genl *ans,
 802                                       struct counter_arg *carg)
 803 {
 804         struct netlink_serialization_params ser_params = {
 805                 .carg = carg,
 806                 .ans = ans,
 807                 .eval_attr = __fill_counters,
 808                 .post_eval_attr = __post_fill_counters,
 809         };
 810
 811         netlink_serialization_command *netlink =
 812                 netlink_create_command(&ser_params);
 813         if (!netlink) {
 814                 STC_LOGE("Can not create command");
 815                 return;
 816         }
 817
 818         netlink->deserialize_answer(&(netlink->params));
 819 }
 820
 821 static gboolean __process_contr_reply(GIOChannel *source,
 822                                       GIOCondition condition,
 823                                       gpointer user_data)
 824 {
 825         int sock = g_io_channel_unix_get_fd(source);
 826         struct genl ans;
 827         int ret;
 828         stc_s *stc = stc_get_manager();
 829
 830         if ((condition & G_IO_ERR) ||
 831             (condition & G_IO_HUP) ||
 832             (condition & G_IO_NVAL)) {
 833                 /* G_IO_ERR/G_IO_HUP/G_IO_NVAL received */
 834
 835                 __close_contr_sock(g_system);
 836                 return FALSE;
 837         }
 838
 839         if (stc == NULL) {
 840                 STC_LOGE("Can't get stc data");
 841                 goto out;
 842         }
 843
 844         ret = read_netlink(sock,
 845                            &ans, sizeof(struct genl));
 846         STC_LOGD("Counter data received ret [%d]", ret);
 847         if (ret == 0)
 848                 goto out;
 849
 850         stc->carg->ans_len = ret;
 851         __process_network_counter(&ans, stc->carg);
 852
 853         g_idle_add(__flush_apps_stats_to_database, NULL);
 854         g_idle_add(__flush_rstns_counter_to_database, NULL);
 855 out:
 856         return TRUE;
 857 }
 858
 859 static gboolean __update_contr_cb(void *user_data)
 860 {
 861         /* Here we just sent command, answer we receive in another callback */
 862         stc_s *stc = stc_get_manager();
 863         ret_value_msg_if(stc == NULL, STC_ERROR_FAIL, "Can't get stc data");
 864         if (!stc->carg) {
 865                 stc->carg = MALLOC0(counter_arg_s, 1);
 866                 stc->carg->sock = stc_monitor_get_counter_socket();
 867         }
 868
 869         STC_LOGD("Get all counters");
 870         nfacct_send_get_all(stc->carg);
 871
 872         /* we need to continue the timer */
 873         return TRUE;
 874 }
 875 #if 0
 876 static gboolean __rstn_tree_foreach_print(gpointer key, gpointer value,
 877                                           gpointer data)
 878 {
 879         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 880         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 881
 882         __print_rstn(rstn_key, rstn_value);
 883         return FALSE;
 884 }
 885
 886 static void __rstn_tree_printall(void)
 887 {
 888         g_tree_foreach(g_system->rstns, __rstn_tree_foreach_print, NULL);
 889 }
 890 #endif
 891 static stc_rstn_value_s * __rstn_lookup(GTree *rstns_tree,
 892                                         const stc_rstn_key_s *key)
 893 {
 894         stc_rstn_value_s *lookup;
 895
 896         ret_value_msg_if(rstns_tree == NULL, NULL, "rstns_tree is null!");
 897
 898         lookup = g_tree_lookup(rstns_tree, key);
 899
 900         return lookup;
 901 }
 902
 903 static gboolean __remove_restriction(gpointer key, gpointer value,
 904                                      gpointer data)
 905 {
 906         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 907         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 908
 909         /* rstn rule is already removed */
 910         if (rstn_value->rst_state == STC_RESTRICTION_REMOVED)
 911                 return FALSE;
 912
 913         __process_restriction(RST_UNSET, rstn_key, rstn_value, data);
 914         __print_rstn(rstn_key, rstn_value);
 915         return FALSE;
 916 }
 917
 918 static gboolean __add_restriction_debug(gpointer key, gpointer value,
 919                                         gpointer data)
 920 {
 921         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 922         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 923
 924         /* rstn rule is activated */
 925         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
 926                 return FALSE;
 927
 928         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
 929                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
 930         else
 931                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
 932
 933         __print_rstn(rstn_key, rstn_value);
 934
 935         return FALSE;
 936 }
 937
 938 static gboolean __add_restriction(gpointer key, gpointer value, gpointer data)
 939 {
 940         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 941         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 942
 943         /* rstn rule is activated */
 944         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
 945                 return FALSE;
 946
 947         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
 948                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
 949         else
 950                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
 951
 952         return FALSE;
 953 }
 954
 955 static stc_error_e __rstn_tree_remove(stc_rstn_key_s *key)
 956 {
 957         stc_rstn_value_s *lookup_value;
 958
 959         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
 960
 961         lookup_value = __rstn_lookup(g_system->rstns, key);
 962         if (!lookup_value) {
 963                 STC_LOGE("key not found");
 964                 return STC_ERROR_NO_DATA;
 965         }
 966
 967         __remove_restriction(key, lookup_value, NULL);
 968
 969         /* remove counter also */
 970         table_counters_delete(lookup_value->restriction_id);
 971
 972         if (!g_tree_remove(g_system->rstns, key)) {
 973                 STC_LOGD("key not found");
 974                 return STC_ERROR_NO_DATA;
 975         }
 976
 977         return STC_ERROR_NONE;
 978 }
 979
 980 static stc_error_e __rstn_tree_add(stc_rstn_key_s *key,
 981                                    stc_rstn_value_s *value, gboolean debug)
 982 {
 983         stc_rstn_value_s *rstn_value;
 984
 985         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
 986
 987         rstn_value = __rstn_lookup(g_system->rstns, key);
 988         if (!rstn_value) {
 989                 stc_rstn_key_s *rstn_key = MALLOC0(stc_rstn_key_s, 1);
 990                 if (!rstn_key) {
 991                         STC_LOGE("rstn_key allocation failed");
 992                         return STC_ERROR_OUT_OF_MEMORY;
 993                 }
 994
 995                 rstn_value = MALLOC0(stc_rstn_value_s, 1);
 996                 if (!rstn_value) {
 997                         STC_LOGE("rstn_value allocation failed");
 998                         FREE(rstn_key);
 999                         return STC_ERROR_OUT_OF_MEMORY;
1000                 }
1001
1002                 rstn_key->app_id = g_strdup(key->app_id);
1003                 rstn_key->ifname = g_strdup(key->ifname);
1004                 rstn_key->imsi = g_strdup(key->imsi);
1005                 rstn_key->iftype = key->iftype;
1006                 rstn_key->roaming = key->roaming;
1007
1008                 g_tree_insert(g_system->rstns, rstn_key, rstn_value);
1009         }
1010
1011         rstn_value->restriction_id = value->restriction_id;
1012         rstn_value->rst_state = value->rst_state;
1013         rstn_value->classid = value->classid;
1014         rstn_value->data_limit = value->data_limit;
1015         rstn_value->data_warn_limit = value->data_warn_limit;
1016         rstn_value->data_counter = 0;
1017         rstn_value->warn_limit_crossed_notified = FALSE;
1018         rstn_value->rstn_limit_crossed_notified = FALSE;
1019
1020         if (debug == TRUE)
1021                 __add_restriction_debug(key, rstn_value, NULL);
1022         else
1023                 __add_restriction(key, rstn_value, NULL);
1024
1025         return STC_ERROR_NONE;
1026 }
1027
1028 static stc_cb_ret_e __insert_restriction_cb(const table_restrictions_info *info,
1029                                             void *user_data)
1030 {
1031         stc_cb_ret_e ret = STC_CONTINUE;
1032
1033         stc_rstn_key_s key;
1034         stc_rstn_value_s value;
1035
1036         memset(&key, 0, sizeof(stc_rstn_key_s));
1037         memset(&value, 0, sizeof(stc_rstn_value_s));
1038
1039         key.app_id = g_strdup(info->app_id);
1040         key.ifname = g_strdup(info->ifname);
1041         key.imsi = g_strdup(info->imsi);
1042         key.iftype = info->iftype;
1043         key.roaming = info->roaming;
1044
1045         value.rst_state = info->rst_state;
1046         value.restriction_id = info->restriction_id;
1047
1048         if (value.rst_state != STC_RESTRICTION_EXCLUDED && info->app_id)
1049                 value.classid = get_classid_by_app_id(info->app_id, TRUE);
1050         else
1051                 value.classid = STC_UNKNOWN_CLASSID;
1052
1053         value.data_limit = info->data_limit;
1054         value.data_warn_limit = info->data_warn_limit;
1055
1056         if (__rstn_tree_add(&key, &value, FALSE) != STC_ERROR_NONE)
1057                 ret = STC_CANCEL;
1058
1059         FREE(key.app_id);
1060         FREE(key.ifname);
1061         FREE(key.imsi);
1062         return ret;
1063 }
1064
1065 static void __fill_restritions_list(void)
1066 {
1067         table_restrictions_foreach(__insert_restriction_cb, NULL);
1068         //__rstn_tree_printall();
1069 }
1070
1071 static gboolean __add_rstn_foreach_application(gpointer key,
1072                                                gpointer value,
1073                                                gpointer data)
1074 {
1075         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1076         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1077         gchar *app_id = (gchar *)data;
1078
1079         /* rstn rule is not for applications */
1080         if (rstn_key->app_id == NULL)
1081                 goto out;
1082
1083         /* rstn rule is not for this application */
1084         if (g_strcmp0(rstn_key->app_id, app_id) != 0)
1085                 goto out;
1086
1087         /* rstn rule is already applied */
1088         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1089                 goto out;
1090
1091         /* add restriction to system */
1092         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1093                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1094         else
1095                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1096
1097         __print_rstn(rstn_key, rstn_value);
1098 out:
1099         return FALSE;
1100 }
1101
1102 static void __add_rstns_for_application(gchar *app_id)
1103 {
1104         g_tree_foreach(g_system->rstns, __add_rstn_foreach_application,
1105                        app_id);
1106 }
1107
1108 stc_error_e stc_monitor_init(void)
1109 {
1110         stc_system_s *system = MALLOC0(stc_system_s, 1);
1111         GIOChannel *gio = NULL;
1112
1113         ret_value_msg_if(system == NULL, STC_ERROR_OUT_OF_MEMORY, "stc_system_s malloc fail!");
1114
1115         /* initializing cgroups */
1116         cgroup_init();
1117
1118         /* creating monitored application tree */
1119         system->apps = g_tree_new_full(__apps_tree_key_compare, NULL,
1120                                        __apps_tree_key_free,
1121                                        __apps_tree_value_free);
1122
1123         system->rstns = g_tree_new_full(__rstns_tree_key_compare, NULL,
1124                                         __rstns_tree_key_free,
1125                                         __rstns_tree_value_free);
1126
1127         /* create netlink socket for updating kernel counters */
1128         system->contr_sock = create_netlink(NETLINK_NETFILTER, 0);
1129         if (!(system->contr_sock)) {
1130                 STC_LOGE("failed to open socket");
1131                 FREE(system);
1132                 return STC_ERROR_FAIL;
1133         }
1134
1135         gio = g_io_channel_unix_new(system->contr_sock);
1136         system->contr_gsource_id =
1137                 g_io_add_watch(gio, G_IO_IN | G_IO_ERR | G_IO_HUP,
1138                                (GIOFunc) __process_contr_reply,
1139                                NULL);
1140         g_io_channel_unref(gio);
1141
1142         g_system = system;
1143
1144         /* creating restriction rules tree */
1145         __update_contr_cb(NULL);
1146
1147         /* registering periodic kernel counters update callback */
1148         g_system->contr_timer_id = g_timeout_add_seconds(CONTR_TIMER_INTERVAL,
1149                                                          __update_contr_cb,
1150                                                          NULL);
1151         if (g_system->contr_timer_id == 0) {
1152                 STC_LOGE("Failed to register kernel counters update timer");
1153                 __close_contr_sock(g_system);
1154                 return STC_ERROR_FAIL;
1155         }
1156
1157         __fill_restritions_list();
1158
1159         return STC_ERROR_NONE;
1160 }
1161
1162 stc_error_e stc_monitor_deinit(void)
1163 {
1164         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1165
1166         /* close netlink socket for updating kernel counters */
1167         __close_contr_sock(g_system);
1168
1169         /* remove kernel counters update timer */
1170         if (g_system->contr_timer_id > 0) {
1171                 g_source_remove(g_system->contr_timer_id);
1172                 g_system->contr_timer_id = 0;
1173         }
1174
1175         /* destroy monitored application tree */
1176         g_tree_destroy(g_system->apps);
1177         g_system->apps = NULL;
1178
1179         /* destroy restriction rules tree */
1180         g_tree_destroy(g_system->rstns);
1181         g_system->rstns = NULL;
1182
1183         FREE(g_system);
1184
1185         return STC_ERROR_NONE;
1186 }
1187
1188 stc_error_e stc_monitor_application_add(const stc_app_key_s app_key,
1189                                         const stc_app_value_s app_value)
1190 {
1191         stc_error_e ret = STC_ERROR_NONE;
1192         stc_app_key_s *key;
1193         stc_app_value_s *value;
1194         stc_app_value_s *lookup;
1195
1196         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1197
1198         lookup = __application_lookup(g_system->apps, &app_key);
1199         if (lookup) {
1200                 STC_LOGD("app_key already present");
1201                 return STC_ERROR_NONE;
1202         }
1203
1204         key = MALLOC0(stc_app_key_s, 1);
1205         if (!key) {
1206                 STC_LOGE("key allocation failed");
1207                 return STC_ERROR_OUT_OF_MEMORY;
1208         }
1209
1210         value = MALLOC0(stc_app_value_s, 1);
1211         if (!value) {
1212                 STC_LOGE("value allocation failed");
1213                 FREE(key);
1214                 return STC_ERROR_OUT_OF_MEMORY;
1215         }
1216
1217         key->app_id = g_strdup(app_key.app_id);
1218         key->pkg_id = g_strdup(app_key.pkg_id);
1219
1220         value->type = app_value.type;
1221         value->data_usage.in_bytes = app_value.data_usage.in_bytes;
1222         value->data_usage.out_bytes = app_value.data_usage.out_bytes;
1223
1224         value->processes = g_tree_new_full(__processes_tree_key_compare, NULL,
1225                                            __processes_tree_key_free,
1226                                            __processes_tree_value_free);
1227
1228         /* create cgroup and update classid */
1229         value->classid = get_classid_by_app_id(app_key.app_id, TRUE);
1230
1231         g_tree_insert(g_system->apps, key, value);
1232
1233         /* add nfacct rule for this classid */
1234         __add_application_monitor(key, value, stc_get_default_connection());
1235         __add_rstns_for_application(app_key.app_id);
1236
1237         return ret;
1238 }
1239
1240 stc_error_e stc_monitor_process_add(const stc_app_key_s app_key,
1241                                     const stc_process_key_s proc_key,
1242                                     const stc_process_value_s proc_value)
1243 {
1244         stc_error_e ret = STC_ERROR_NONE;
1245         stc_app_value_s *app_lookup;
1246         stc_process_key_s *key;
1247         stc_process_value_s *value;
1248         stc_process_value_s *proc_lookup;
1249
1250         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1251
1252         app_lookup = __application_lookup(g_system->apps, &app_key);
1253         if (!app_lookup) {
1254                 STC_LOGD("app_key not found");
1255                 return STC_ERROR_FAIL;
1256         }
1257
1258         proc_lookup = __process_lookup(app_lookup->processes, &proc_key);
1259         if (proc_lookup) {
1260                 STC_LOGD("proc_key already present");
1261                 return STC_ERROR_NONE;
1262         }
1263
1264         key = MALLOC0(stc_process_key_s, 1);
1265         if (!key) {
1266                 STC_LOGE("key allocation failed");
1267                 return STC_ERROR_OUT_OF_MEMORY;
1268         }
1269
1270         value = MALLOC0(stc_process_value_s, 1);
1271         if (!value) {
1272                 STC_LOGE("value allocation failed");
1273                 FREE(key);
1274                 return STC_ERROR_OUT_OF_MEMORY;
1275         }
1276
1277         key->pid = proc_key.pid;
1278
1279         value->ground = proc_value.ground;
1280
1281         g_tree_insert(app_lookup->processes, key, value);
1282
1283         /* add pid to application cgroup */
1284         place_pids_to_net_cgroup(proc_key.pid, app_key.app_id);
1285
1286         return ret;
1287 }
1288
1289 stc_error_e stc_monitor_process_remove(pid_t pid)
1290 {
1291         stc_error_e ret = STC_ERROR_NONE;
1292         stc_process_key_s proc_key = {
1293                 .pid = pid
1294         };
1295
1296         remove_pid_context_s context = {
1297                 .app_key = NULL,
1298                 .proc_key = &proc_key,
1299                 .entry_removed = FALSE,
1300         };
1301
1302         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1303
1304         g_tree_foreach(g_system->apps, __apps_tree_foreach_remove_pid,
1305                        &context);
1306
1307         if (context.entry_removed)
1308                 __application_remove_if_empty(context.app_key);
1309
1310         return ret;
1311 }
1312
1313 stc_error_e stc_monitor_process_update_ground(const stc_app_key_s app_key,
1314                                               const stc_process_key_s proc_key,
1315                                               stc_app_state_e ground)
1316 {
1317         stc_error_e ret = STC_ERROR_NONE;
1318         stc_app_value_s *app_lookup;
1319         stc_process_value_s *proc_lookup;
1320
1321         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1322
1323         app_lookup = __application_lookup(g_system->apps, &app_key);
1324         if (!app_lookup) {
1325                 STC_LOGD("app_key not found");
1326                 return STC_ERROR_FAIL;
1327         }
1328
1329         proc_lookup = __process_lookup(app_lookup->processes, &proc_key);
1330         if (!proc_lookup) {
1331                 STC_LOGD("proc_key not found");
1332                 return STC_ERROR_FAIL;
1333         }
1334
1335         if (proc_lookup->ground != ground)
1336                 proc_lookup->ground = ground;
1337
1338         if (ground == STC_APP_STATE_BACKGROUND) {
1339                 char *background_app_id = g_strconcat(app_key.app_id,
1340                                                      STC_BACKGROUND_APP_SUFFIX,
1341                                                      NULL);
1342                 place_pids_to_net_cgroup(proc_key.pid, background_app_id);
1343                 g_free(background_app_id);
1344         } else {
1345                 place_pids_to_net_cgroup(proc_key.pid, app_key.app_id);
1346         }
1347
1348         return ret;
1349 }
1350
1351 void stc_monitor_update_rstn_by_default_connection(void *data)
1352 {
1353         static default_connection_s old_connection;
1354         default_connection_s *new_connection = (default_connection_s *)data;
1355
1356         if (old_connection.path != NULL) {
1357                 if (g_system->apps)
1358                         g_tree_foreach(g_system->apps,
1359                                        __remove_application_monitor,
1360                                        (gpointer)&old_connection);
1361
1362                 if (g_system->rstns)
1363                         g_tree_foreach(g_system->rstns,
1364                                        __remove_restriction,
1365                                        (gpointer)&old_connection);
1366         }
1367
1368         FREE(old_connection.path);
1369         FREE(old_connection.ifname);
1370         old_connection.type = 0;
1371         old_connection.roaming = 0;
1372
1373         if (new_connection != NULL && new_connection->path != NULL) {
1374                 if (g_system->apps)
1375                         g_tree_foreach(g_system->apps,
1376                                        __add_application_monitor,
1377                                        (gpointer)new_connection);
1378
1379                 if (g_system->rstns)
1380                         g_tree_foreach(g_system->rstns, __add_restriction,
1381                                        NULL);
1382
1383                 old_connection.path = g_strdup(new_connection->path);
1384                 old_connection.ifname = g_strdup(new_connection->ifname);
1385                 old_connection.type = new_connection->type;
1386                 old_connection.roaming = new_connection->roaming;
1387         }
1388 }
1389
1390 stc_error_e stc_monitor_rstns_tree_add(const table_restrictions_info *info)
1391 {
1392         stc_error_e ret;
1393
1394         stc_rstn_key_s key;
1395         stc_rstn_value_s value;
1396
1397         memset(&key, 0, sizeof(stc_rstn_key_s));
1398         memset(&value, 0, sizeof(stc_rstn_value_s));
1399
1400         key.app_id = g_strdup(info->app_id);
1401         key.ifname = g_strdup(info->ifname);
1402         key.imsi = g_strdup(info->imsi);
1403         key.iftype = info->iftype;
1404         key.roaming = info->roaming;
1405
1406         value.rst_state = info->rst_state;
1407         value.restriction_id = info->restriction_id;
1408
1409         if (value.rst_state != STC_RESTRICTION_EXCLUDED && info->app_id)
1410                 value.classid = get_classid_by_app_id(info->app_id, TRUE);
1411         else
1412                 value.classid = STC_UNKNOWN_CLASSID;
1413
1414         value.data_limit = info->data_limit;
1415         value.data_warn_limit = info->data_warn_limit;
1416
1417         ret = __rstn_tree_add(&key, &value, TRUE);
1418
1419         FREE(key.app_id);
1420         FREE(key.ifname);
1421         FREE(key.imsi);
1422         return ret;
1423 }
1424
1425 stc_error_e stc_monitor_rstns_tree_remove(const table_restrictions_info *info)
1426 {
1427         stc_error_e ret;
1428
1429         stc_rstn_key_s key = {
1430                 .app_id = g_strdup(info->app_id),
1431                 .ifname = g_strdup(info->ifname),
1432                 .imsi = g_strdup(info->imsi),
1433                 .iftype = info->iftype,
1434                 .roaming = info->roaming,
1435         };
1436
1437         ret = __rstn_tree_remove(&key);
1438
1439         FREE(key.app_id);
1440         FREE(key.ifname);
1441         FREE(key.imsi);
1442         return ret;
1443 }
1444
1445 int stc_monitor_get_counter_socket(void)
1446 {
1447         return g_system->contr_sock;
1448 }