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 in_limit_reached;
  42         gboolean out_limit_reached;
  43 } classid_bytes_context_s;
  44
  45 static stc_system_s *g_system = NULL;
  46
  47 static nfacct_rule_jump __get_jump_by_intend(struct nfacct_rule *counter)
  48 {
  49         if (counter->intend == NFACCT_WARN)
  50                 return NFACCT_JUMP_ACCEPT;
  51         else if (counter->intend == NFACCT_BLOCK)
  52                 return NFACCT_JUMP_REJECT;
  53
  54         return NFACCT_JUMP_UNKNOWN;
  55 }
  56
  57 static stc_error_e __add_iptables_in(struct nfacct_rule *counter)
  58 {
  59         return produce_net_rule(counter, 0, 0,
  60                 NFACCT_ACTION_INSERT, __get_jump_by_intend(counter),
  61                 NFACCT_COUNTER_IN);
  62 }
  63
  64 static stc_error_e __add_iptables_out(struct nfacct_rule *counter)
  65 {
  66         return produce_net_rule(counter, 0, 0,
  67                 NFACCT_ACTION_INSERT, __get_jump_by_intend(counter),
  68                 NFACCT_COUNTER_OUT);
  69 }
  70
  71 static stc_error_e __del_iptables_in(struct nfacct_rule *counter)
  72 {
  73         return produce_net_rule(counter, 0, 0,
  74                 NFACCT_ACTION_DELETE, __get_jump_by_intend(counter),
  75                 NFACCT_COUNTER_IN);
  76 }
  77
  78 static stc_error_e __del_iptables_out(struct nfacct_rule *counter)
  79 {
  80         return produce_net_rule(counter, 0, 0,
  81                 NFACCT_ACTION_DELETE, __get_jump_by_intend(counter),
  82                 NFACCT_COUNTER_OUT);
  83 }
  84
  85 static int __processes_tree_key_compare(gconstpointer a, gconstpointer b,
  86                                         gpointer UNUSED user_data)
  87 {
  88         stc_process_key_s *key_a = (stc_process_key_s *)a;
  89         stc_process_key_s *key_b = (stc_process_key_s *)b;
  90
  91         return key_a->pid - key_b->pid;
  92 }
  93
  94 static void __processes_tree_value_free(gpointer data)
  95 {
  96         stc_process_value_s *value = (stc_process_value_s *)data;
  97
  98         FREE(value);
  99 }
 100
 101 static void __processes_tree_key_free(gpointer data)
 102 {
 103         stc_process_key_s *key = (stc_process_key_s *)data;
 104
 105         FREE(key);
 106 }
 107
 108 static int __apps_tree_key_compare(gconstpointer a, gconstpointer b,
 109                                    gpointer UNUSED user_data)
 110 {
 111         stc_app_key_s *key_a = (stc_app_key_s *)a;
 112         stc_app_key_s *key_b = (stc_app_key_s *)b;
 113         gint ret;
 114
 115         ret = g_strcmp0(key_a->pkg_id, key_b->pkg_id);
 116         if (ret)
 117                 return ret;
 118
 119         return g_strcmp0(key_a->app_id, key_b->app_id);
 120 }
 121
 122 static void __apps_tree_value_free(gpointer data)
 123 {
 124         stc_app_value_s *value = (stc_app_value_s *)data;
 125
 126         g_tree_destroy(value->processes);
 127         value->processes = NULL;
 128
 129         FREE(value);
 130 }
 131
 132 static void __apps_tree_key_free(gpointer data)
 133 {
 134         stc_app_key_s *key = (stc_app_key_s *)data;
 135
 136         g_free(key->pkg_id);
 137         g_free(key->app_id);
 138         FREE(key);
 139 }
 140
 141 static int __rstns_tree_key_compare(gconstpointer a, gconstpointer b,
 142                                     gpointer UNUSED user_data)
 143 {
 144         stc_rstn_key_s *key_a = (stc_rstn_key_s *)a;
 145         stc_rstn_key_s *key_b = (stc_rstn_key_s *)b;
 146         int ret;
 147
 148         ret = g_strcmp0(key_a->app_id, key_b->app_id);
 149         if (ret != 0)
 150                 return ret;
 151
 152         ret = g_strcmp0(key_a->ifname, key_b->ifname);
 153         if (ret != 0)
 154                 return ret;
 155
 156         ret = g_strcmp0(key_a->imsi, key_b->imsi);
 157         if (ret != 0)
 158                 return ret;
 159
 160         ret = key_a->iftype - key_b->iftype;
 161         if (ret != 0)
 162                 return ret;
 163
 164         return 0;
 165 }
 166
 167 static void __rstns_tree_value_free(gpointer data)
 168 {
 169         stc_rstn_value_s *value = (stc_rstn_value_s *)data;
 170
 171         FREE(value);
 172 }
 173
 174 static void __rstns_tree_key_free(gpointer data)
 175 {
 176         stc_rstn_key_s *key = (stc_rstn_key_s *)data;
 177
 178         FREE(key->app_id);
 179         FREE(key->ifname);
 180         FREE(key->imsi);
 181         FREE(key);
 182 }
 183
 184 static gboolean __processes_tree_foreach_print(gpointer key, gpointer value,
 185                                                gpointer data)
 186 {
 187         stc_process_key_s *proc_key = (stc_process_key_s *)key;
 188         stc_process_value_s *proc_value = (stc_process_value_s *)value;
 189
 190         STC_LOGD("Process entry => PID [%d], Ground state [%d]",
 191                  proc_key->pid, proc_value->ground);
 192         return FALSE;
 193 }
 194
 195 static void __processes_tree_printall(GTree *processes)
 196 {
 197         g_tree_foreach(processes, __processes_tree_foreach_print, NULL);
 198 }
 199
 200 static gboolean __apps_tree_foreach_print(gpointer key, gpointer value,
 201                                           gpointer data)
 202 {
 203         stc_app_key_s *app_key = (stc_app_key_s *)key;
 204         stc_app_value_s *app_value = (stc_app_value_s *)value;
 205
 206         STC_LOGD("Application info => Pkg ID [%s], App ID [%s],"
 207                  " Type [%d], classid [%d],"
 208                  " counter [ in (%lld), out (%lld)]",
 209                  app_key->pkg_id, app_key->app_id,
 210                  app_value->type, app_value->classid,
 211                  app_value->data_usage.in_bytes, app_value->data_usage.out_bytes);
 212
 213         __processes_tree_printall(app_value->processes);
 214         return FALSE;
 215 }
 216
 217 #if 0
 218 static void __apps_tree_printall(void)
 219 {
 220         g_tree_foreach(g_system->apps, __apps_tree_foreach_print, NULL);
 221 }
 222 #endif
 223
 224 static gboolean __apps_tree_foreach_remove_pid(gpointer key, gpointer value,
 225                                                gpointer data)
 226 {
 227         remove_pid_context_s *context = (remove_pid_context_s *)data;
 228         stc_app_value_s *app_value = (stc_app_value_s *)value;
 229
 230         if (!g_tree_remove(app_value->processes, context->proc_key)) {
 231                 STC_LOGD("key not found");
 232                 return FALSE;
 233         }
 234
 235         context->entry_removed = TRUE;
 236         context->app_key = (stc_app_key_s *)key;
 237
 238         return TRUE;
 239 }
 240
 241 static stc_app_value_s * __application_lookup(GTree *apps,
 242                                               const stc_app_key_s *key)
 243 {
 244         stc_app_value_s *lookup;
 245
 246         ret_value_msg_if(apps == NULL, NULL, "apps is null!");
 247
 248         lookup = g_tree_lookup(apps, key);
 249
 250         return lookup;
 251 }
 252
 253 static stc_process_value_s * __process_lookup(GTree *processes,
 254                                               const stc_process_key_s *key)
 255 {
 256         stc_process_value_s *lookup;
 257
 258         ret_value_msg_if(processes == NULL, NULL, "processes is null!");
 259
 260         lookup = g_tree_lookup(processes, key);
 261
 262         return lookup;
 263 }
 264
 265 static gboolean __processes_tree_check_empty(gpointer key, gpointer value,
 266                                              gpointer data)
 267 {
 268         guint *pid_count = (guint *)data;
 269         (*pid_count)++;
 270         return TRUE;
 271 }
 272
 273 static gboolean __add_application_monitor(gpointer key, gpointer value,
 274                                           gpointer data)
 275 {
 276         stc_app_value_s *app_value = (stc_app_value_s *)value;
 277         default_connection_s *connection = (default_connection_s *)data;
 278         stc_s *stc = stc_get_manager();
 279
 280         if (stc && connection && connection->ifname) {
 281                 struct nfacct_rule counter;
 282
 283                 if (!stc->carg) {
 284                         stc->carg = MALLOC0(counter_arg_s, 1);
 285                         stc->carg->sock = stc_monitor_get_counter_socket();
 286                 }
 287
 288                 memset(&counter, 0, sizeof(struct nfacct_rule));
 289
 290                 counter.carg = stc->carg;
 291                 counter.classid = app_value->classid;
 292                 counter.intend = NFACCT_COUNTER;
 293                 g_strlcpy(counter.ifname, connection->ifname, MAX_IFACE_LENGTH);
 294
 295                 __add_iptables_in(&counter);
 296                 __add_iptables_out(&counter);
 297         }
 298
 299         return FALSE;
 300 }
 301
 302 static gboolean __remove_application_monitor(gpointer key, gpointer value,
 303                                              gpointer data)
 304 {
 305         stc_app_value_s *app_value = (stc_app_value_s *)value;
 306         default_connection_s *connection = (default_connection_s *)data;
 307         stc_s *stc = stc_get_manager();
 308
 309         if (stc && connection && connection->ifname) {
 310                 struct nfacct_rule counter;
 311
 312                 if (!stc->carg) {
 313                         stc->carg = MALLOC0(counter_arg_s, 1);
 314                         stc->carg->sock = stc_monitor_get_counter_socket();
 315                 }
 316
 317                 memset(&counter, 0, sizeof(struct nfacct_rule));
 318
 319                 counter.carg = stc->carg;
 320                 counter.classid = app_value->classid;
 321                 counter.intend = NFACCT_COUNTER;
 322                 g_strlcpy(counter.ifname, connection->ifname, MAX_IFACE_LENGTH);
 323
 324                 __del_iptables_in(&counter);
 325                 __del_iptables_out(&counter);
 326         }
 327
 328         return FALSE;
 329 }
 330
 331 static void __print_rstn(stc_rstn_key_s *rstn_key, stc_rstn_value_s *rstn_value)
 332 {
 333         STC_LOGI("rstn info => rstn_id [%llu], "
 334                  "app_id [%s], classid [%lu], ifname [%s], "
 335                  "iftype [%d], rst_state [%d], "
 336                  "limit [ in (%lld), out (%lld)], "
 337                  "warn_limit [ in (%lld), out (%lld)], "
 338                  "counter [ in (%lld), out (%lld)], "
 339                  "roaming [%d], imsi [%s]",
 340                  rstn_value->restriction_id,
 341                  rstn_key->app_id, rstn_value->classid , rstn_key->ifname,
 342                  rstn_key->iftype, rstn_value->rst_state,
 343                  rstn_value->limit.in_bytes, rstn_value->limit.out_bytes,
 344                  rstn_value->warn_limit.in_bytes,
 345                  rstn_value->warn_limit.out_bytes,
 346                  rstn_value->counter.in_bytes, rstn_value->counter.out_bytes,
 347                  rstn_key->roaming, rstn_key->imsi);
 348 }
 349
 350 static void __process_restriction(enum traffic_restriction_type rst_type,
 351                                   stc_rstn_key_s *rstn_key,
 352                                   stc_rstn_value_s *rstn_value, void *data)
 353 {
 354         stc_data_counter_s effective_limit, effective_warn_limit;
 355         default_connection_s *old_connection = (default_connection_s *)data;
 356         default_connection_s *connection = NULL;
 357
 358         if (old_connection != NULL)
 359                 connection = old_connection;
 360         else
 361                 connection = stc_get_default_connection();
 362
 363         /* no default ifname */
 364         if (connection->ifname == NULL)
 365                 return;
 366
 367         /* rstn not applicable for this interface */
 368         if (rstn_key->ifname != NULL && g_strcmp0("", rstn_key->ifname) != 0 &&
 369             g_strcmp0(connection->ifname, rstn_key->ifname) != 0)
 370                 return;
 371
 372         /* classid is invalid */
 373         if (rstn_value->classid == STC_UNKNOWN_CLASSID)
 374                 return;
 375
 376         effective_limit.out_bytes = rstn_value->limit.out_bytes;
 377         effective_limit.in_bytes = rstn_value->limit.in_bytes;
 378         effective_warn_limit.out_bytes = rstn_value->warn_limit.out_bytes;
 379         effective_warn_limit.in_bytes = rstn_value->warn_limit.in_bytes;
 380
 381         if (rst_type == RST_SET) {
 382                 /* TODO: Change this to runtime memory */
 383                 table_counters_info info;
 384
 385                 memset(&info, 0, sizeof(table_counters_info));
 386                 table_counters_get(rstn_value->restriction_id, &info);
 387
 388                 effective_limit.out_bytes -= info.sent_bytes;
 389                 effective_limit.in_bytes -= info.rcv_bytes;
 390                 effective_warn_limit.out_bytes -= info.sent_bytes;
 391                 effective_warn_limit.in_bytes -= info.rcv_bytes;
 392
 393                 if (effective_limit.in_bytes < 0) {
 394                         effective_limit.in_bytes = 0;
 395                         rstn_value->in_limit_reached = TRUE;
 396                 }
 397
 398                 if (effective_limit.out_bytes < 0) {
 399                         effective_limit.out_bytes = 0;
 400                         rstn_value->out_limit_reached = TRUE;
 401                 }
 402
 403                 if (effective_warn_limit.in_bytes < 0)
 404                         effective_warn_limit.in_bytes = 0;
 405
 406                 if (effective_warn_limit.out_bytes < 0)
 407                         effective_warn_limit.out_bytes = 0;
 408                  STC_LOGD("datausage [in: %lld, out: %lld]",
 409                           info.rcv_bytes, info.sent_bytes);
 410         }
 411
 412         STC_LOGD("rstn_id [%llu], effective limit [in: %lld, out: %lld], "
 413                  "effective warn limit [in: %lld, out: %lld], "
 414                  "datausage [in: %lld, out: %lld]",
 415                  rstn_value->restriction_id,
 416                  effective_limit.in_bytes, effective_limit.out_bytes,
 417                  effective_warn_limit.in_bytes, effective_warn_limit.out_bytes);
 418
 419         switch (rst_type) {
 420         case RST_SET:
 421                 rstn_value->rst_state = STC_RESTRICTION_ACTIVATED;
 422                 rstn_value->in_limit_reached = FALSE;
 423                 rstn_value->out_limit_reached = FALSE;
 424                 break;
 425         case RST_EXCLUDE:
 426                 ;//Do Nothing
 427                 break;
 428         case RST_UNSET:
 429                 rstn_value->rst_state = STC_RESTRICTION_REMOVED;
 430                 rstn_value->in_limit_reached = FALSE;
 431                 rstn_value->out_limit_reached = FALSE;
 432                 break;
 433         default:
 434                 ;//Do Nothing
 435         }
 436 }
 437
 438 static gboolean __remove_rstns_foreach_application(gpointer key,
 439                                                    gpointer value,
 440                                                    gpointer data)
 441 {
 442         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 443         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 444         gchar *app_id = (gchar *)data;
 445
 446         /* rstn rule is not for applications */
 447         if (rstn_key->app_id == NULL)
 448                 goto out;
 449
 450         /* rstn rule is not for this application */
 451         if (g_strcmp0(rstn_key->app_id, app_id) != 0)
 452                 goto out;
 453
 454         /* rstn rule is already removed */
 455         if (rstn_value->rst_state == STC_RESTRICTION_REMOVED)
 456                 goto out;
 457
 458         /* remove restriction from system */
 459         __process_restriction(RST_UNSET, rstn_key, rstn_value, data);
 460
 461         __print_rstn(rstn_key, rstn_value);
 462 out:
 463         return FALSE;
 464 }
 465
 466 static void __remove_rstns_for_application(gchar *app_id)
 467 {
 468         g_tree_foreach(g_system->rstns, __remove_rstns_foreach_application,
 469                        app_id);
 470 }
 471
 472 static stc_error_e __application_remove_if_empty(const stc_app_key_s *app_key)
 473 {
 474         stc_error_e ret = STC_ERROR_NONE;
 475         guint pid_count = 0;
 476         stc_app_value_s *lookup;
 477
 478         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
 479
 480         lookup = __application_lookup(g_system->apps, app_key);
 481         if (!lookup) {
 482                 STC_LOGE("app_key not found");
 483                 return STC_ERROR_NO_DATA;
 484         }
 485
 486         g_tree_foreach(lookup->processes, __processes_tree_check_empty,
 487                        &pid_count);
 488
 489         if (!pid_count) {
 490                 /* remove nfacct rule for this classid */
 491                 __remove_application_monitor((gpointer) app_key, lookup,
 492                                              stc_get_default_connection());
 493                 __remove_rstns_for_application(app_key->app_id);
 494         }
 495
 496         if (!g_tree_remove(g_system->apps, app_key)) {
 497                 ret = STC_ERROR_NO_DATA;
 498                 STC_LOGE("key not found");
 499         }
 500
 501         return ret;
 502 }
 503
 504 static stc_error_e __close_contr_sock(stc_system_s *system)
 505 {
 506         ret_value_msg_if(system == NULL, STC_ERROR_INVALID_PARAMETER, "invalid parameter");
 507
 508         /* close netlink socket for updating kernel counters */
 509         if (g_system->contr_sock != -1) {
 510                 close(g_system->contr_sock);
 511                 g_system->contr_sock = -1;
 512         }
 513
 514         if (g_system->contr_gsource_id != 0) {
 515                 g_source_remove(g_system->contr_gsource_id);
 516                 g_system->contr_gsource_id = 0;
 517         }
 518
 519         return STC_ERROR_NONE;
 520 }
 521
 522 static gboolean __rstn_counter_update_foreach_classid(gpointer key,
 523                                                       gpointer value,
 524                                                       gpointer data)
 525 {
 526         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 527         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 528         classid_bytes_context_s *context = (classid_bytes_context_s *)data;
 529
 530         if (context->counter->intend != NFACCT_COUNTER)
 531                 goto try_next_callback;
 532
 533         if (rstn_value->classid != context->counter->classid)
 534                 goto try_next_callback;
 535
 536         if (rstn_value->in_limit_reached == TRUE) {
 537                 context->in_limit_reached = TRUE;
 538                 goto try_next_callback;
 539         }
 540
 541         if (rstn_value->out_limit_reached == TRUE) {
 542                 context->out_limit_reached = TRUE;
 543                 goto try_next_callback;
 544         }
 545
 546         switch (context->counter->iotype) {
 547         case NFACCT_COUNTER_IN:
 548                 rstn_value->counter.in_bytes += context->bytes;
 549
 550                 if (rstn_value->counter.in_bytes >= rstn_value->warn_limit.in_bytes
 551                     && rstn_value->warn_limit_crossed_notified == FALSE) {
 552                         gboolean rv = FALSE;
 553                         char iftype[MAX_INT_LENGTH];
 554                         char byte[MAX_INT_LENGTH];
 555                         stc_s *stc = (stc_s *)stc_get_manager();
 556                         ret_value_msg_if(stc == NULL, FALSE, "failed to get stc data");
 557
 558                         rv = stc_manager_dbus_emit_signal(stc->connection,
 559                                                           STC_DBUS_SERVICE_RESTRICTION_PATH,
 560                                                           STC_DBUS_INTERFACE_RESTRICTION,
 561                                                           "WarnThresholdCrossed",
 562                                                           g_variant_new("(s)", rstn_key->app_id));
 563                         if (rv == TRUE)
 564                                 rstn_value->warn_limit_crossed_notified = TRUE;
 565
 566                         snprintf(iftype, MAX_INT_LENGTH, "%d", rstn_key->iftype);
 567                         snprintf(byte, MAX_INT_LENGTH, "%lld", rstn_value->limit.in_bytes);
 568                         stc_send_warn_message_to_net_popup("warn threshold crossed",
 569                                 "warning_noti", rstn_key->app_id, iftype, byte);
 570                 }
 571
 572                 /* block immediately */
 573                 if (rstn_value->counter.in_bytes >= rstn_value->limit.in_bytes) {
 574                         context->counter->intend = NFACCT_BLOCK;
 575                         __del_iptables_in(context->counter);
 576                         __add_iptables_in(context->counter);
 577                         context->counter->intend = NFACCT_COUNTER;
 578                         rstn_value->in_limit_reached = TRUE;
 579
 580                         if (rstn_value->rstn_limit_crossed_notified == FALSE) {
 581                                 gboolean rv = FALSE;
 582                                 int ret = 0;
 583                                 char iftype[MAX_INT_LENGTH];
 584                                 char byte[MAX_INT_LENGTH];
 585                                 stc_s *stc = (stc_s *)stc_get_manager();
 586                                 ret_value_msg_if(stc == NULL, FALSE, "failed to get stc data");
 587
 588                                 rv = stc_manager_dbus_emit_signal(stc->connection,
 589                                                                   STC_DBUS_SERVICE_RESTRICTION_PATH,
 590                                                                   STC_DBUS_INTERFACE_RESTRICTION,
 591                                                                   "RestrictionThresholdCrossed",
 592                                                                   g_variant_new("(s)", rstn_key->app_id));
 593                                 if (rv == TRUE)
 594                                         rstn_value->rstn_limit_crossed_notified = TRUE;
 595
 596                                 snprintf(iftype, MAX_INT_LENGTH, "%d", rstn_key->iftype);
 597                                 snprintf(byte, MAX_INT_LENGTH, "%lld", rstn_value->limit.in_bytes);
 598                                 stc_send_restriction_message_to_net_popup("restriction threshold crossed",
 599                                         "restriction_noti", rstn_key->app_id, iftype, byte);
 600                         }
 601                 }
 602
 603                 g_system->rstns_tree_updated = TRUE;
 604                 __print_rstn(rstn_key, rstn_value);
 605                 break;
 606         case NFACCT_COUNTER_OUT:
 607                 rstn_value->counter.out_bytes += context->bytes;
 608
 609                 if (rstn_value->counter.out_bytes >= rstn_value->limit.out_bytes
 610                     && rstn_value->warn_limit_crossed_notified == FALSE) {
 611                         gboolean rv = FALSE;
 612                         char iftype[MAX_INT_LENGTH];
 613                         char byte[MAX_INT_LENGTH];
 614                         stc_s *stc = (stc_s *)stc_get_manager();
 615                         ret_value_msg_if(stc == NULL, FALSE, "failed to get stc data");
 616
 617                         rv = stc_manager_dbus_emit_signal(stc->connection,
 618                                                           STC_DBUS_SERVICE_RESTRICTION_PATH,
 619                                                           STC_DBUS_INTERFACE_RESTRICTION,
 620                                                           "WarnThresholdCrossed",
 621                                                           g_variant_new("(s)", rstn_key->app_id));
 622                         if (rv == TRUE)
 623                                 rstn_value->warn_limit_crossed_notified = TRUE;
 624
 625                         snprintf(iftype, MAX_INT_LENGTH, "%d", rstn_key->iftype);
 626                         snprintf(byte, MAX_INT_LENGTH, "%lld", rstn_value->limit.out_bytes);
 627                         stc_send_warn_message_to_net_popup("warn threshold crossed",
 628                                 "warning_noti", rstn_key->app_id, iftype, byte);
 629                 }
 630
 631                 /* block immediately */
 632                 if (rstn_value->counter.out_bytes >= rstn_value->limit.out_bytes) {
 633                         context->counter->intend = NFACCT_BLOCK;
 634                         __del_iptables_out(context->counter);
 635                         __add_iptables_out(context->counter);
 636                         context->counter->intend = NFACCT_COUNTER;
 637                         rstn_value->out_limit_reached = TRUE;
 638
 639                         if (rstn_value->rstn_limit_crossed_notified == FALSE) {
 640                                 gboolean rv = FALSE;
 641                                 char iftype[MAX_INT_LENGTH];
 642                                 char byte[MAX_INT_LENGTH];
 643                                 stc_s *stc = (stc_s *)stc_get_manager();
 644                                 ret_value_msg_if(stc == NULL, FALSE, "failed to get stc data");
 645
 646                                 rv = stc_manager_dbus_emit_signal(stc->connection,
 647                                                                   STC_DBUS_SERVICE_RESTRICTION_PATH,
 648                                                                   STC_DBUS_INTERFACE_RESTRICTION,
 649                                                                   "RestrictionThresholdCrossed",
 650                                                                   g_variant_new("(s)", rstn_key->app_id));
 651                                 if (rv == TRUE)
 652                                         rstn_value->rstn_limit_crossed_notified = TRUE;
 653
 654                                 snprintf(iftype, MAX_INT_LENGTH, "%d", rstn_key->iftype);
 655                                 snprintf(byte, MAX_INT_LENGTH, "%lld", rstn_value->limit.out_bytes);
 656                                 stc_send_restriction_message_to_net_popup("restriction threshold crossed",
 657                                         "restriction_noti", rstn_key->app_id, iftype, byte);
 658                         }
 659                 }
 660
 661                 g_system->rstns_tree_updated = TRUE;
 662                 __print_rstn(rstn_key, rstn_value);
 663                 break;
 664         default:
 665                 STC_LOGE("unknown iotype");
 666         }
 667
 668
 669 try_next_callback:
 670         return FALSE;
 671 }
 672
 673 static gboolean __update_app_statistics(gpointer key, gpointer value,
 674                                         gpointer data)
 675 {
 676         stc_app_key_s *app_key = (stc_app_key_s *)key;
 677         stc_app_value_s *app_value = (stc_app_value_s *)value;
 678         time_t *touch_time = (time_t *)data;
 679         stc_db_classid_iftype_key stat_key;
 680         stc_db_app_stats stat;
 681         char *default_ifname = stc_default_connection_get_ifname();
 682
 683         memset(&stat_key, 0, sizeof(stc_db_classid_iftype_key));
 684         memset(&stat, 0 , sizeof(stc_db_app_stats));
 685
 686         stat_key.classid = app_value->classid;
 687         stat_key.iftype = stc_default_connection_get_type();
 688         if (STC_IFACE_DATACALL == stat_key.iftype)
 689                 stat_key.imsi = g_strdup("unknown");
 690         else
 691                 stat_key.imsi = g_strdup("noneimsi");
 692         g_strlcpy(stat_key.ifname, default_ifname, MAX_IFACE_LENGTH);
 693
 694         stat.app_id = g_strdup(app_key->app_id);
 695         stat.snd_count = app_value->counter.out_bytes;
 696         stat.rcv_count = app_value->counter.in_bytes;
 697         stat.delta_snd = 0;
 698         stat.delta_rcv = 0;
 699         stat.is_roaming = stc_default_connection_get_roaming();
 700         stat.ground = STC_APP_STATE_UNKNOWN;
 701
 702         table_statistics_insert(&stat_key, &stat, *touch_time);
 703
 704         app_value->counter.out_bytes = 0;
 705         app_value->counter.in_bytes = 0;
 706
 707         FREE(stat.app_id);
 708         FREE(stat_key.imsi);
 709         FREE(default_ifname);
 710
 711         return FALSE;
 712 }
 713
 714 static gboolean __flush_apps_stats_to_database(gpointer user_data)
 715 {
 716         time_t current_time = time(0);
 717
 718         if (g_system->apps_tree_updated == FALSE)
 719                 return G_SOURCE_REMOVE;
 720
 721         g_system->apps_tree_updated = FALSE;
 722
 723         if (g_system->apps)
 724                 g_tree_foreach(g_system->apps,
 725                                __update_app_statistics,
 726                                &current_time);
 727
 728         STC_LOGI("Flushed app stats to database");
 729         return G_SOURCE_REMOVE;
 730 }
 731
 732 static gboolean __update_counter_statistics(gpointer key, gpointer value,
 733                                             gpointer data)
 734 {
 735         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 736         table_counters_info info = {
 737                 .restriction_id = rstn_value->restriction_id,
 738                 .sent_bytes = rstn_value->counter.out_bytes,
 739                 .rcv_bytes = rstn_value->counter.in_bytes
 740         };
 741
 742         table_counters_update_counters(&info);
 743
 744         return FALSE;
 745 }
 746
 747 static gboolean __flush_rstns_counter_to_database(gpointer user_data)
 748 {
 749         time_t current_time = time(0);
 750
 751         if (g_system->rstns_tree_updated == FALSE)
 752                 return G_SOURCE_REMOVE;
 753
 754         g_system->rstns_tree_updated = FALSE;
 755
 756         if (g_system->rstns)
 757                 g_tree_foreach(g_system->rstns,
 758                                __update_counter_statistics,
 759                                &current_time);
 760
 761         STC_LOGI("Flushed rstns counters to database");
 762         return G_SOURCE_REMOVE;
 763 }
 764
 765 static gboolean __apps_counter_update_foreach_classid(gpointer key,
 766                                                       gpointer value,
 767                                                       gpointer data)
 768 {
 769         stc_app_key_s *app_key = (stc_app_key_s *)key;
 770         stc_app_value_s *app_value = (stc_app_value_s *)value;
 771         classid_bytes_context_s *context = (classid_bytes_context_s *)data;
 772
 773         if (context->counter->intend != NFACCT_COUNTER)
 774                 goto try_next_callback;
 775
 776         if (app_value->classid != context->counter->classid)
 777                 goto try_next_callback;
 778
 779         switch (context->counter->iotype) {
 780         case NFACCT_COUNTER_IN:
 781                 app_value->data_usage.in_bytes += context->bytes;
 782                 app_value->counter.in_bytes = context->bytes;
 783                 g_system->apps_tree_updated = TRUE;
 784
 785                 __apps_tree_foreach_print(app_key, app_value, NULL);
 786                 break;
 787         case NFACCT_COUNTER_OUT:
 788                 app_value->data_usage.out_bytes += context->bytes;
 789                 app_value->counter.out_bytes = context->bytes;
 790                 g_system->apps_tree_updated = TRUE;
 791
 792                 __apps_tree_foreach_print(app_key, app_value, NULL);
 793                 break;
 794         default:
 795                 STC_LOGE("unknown iotype");
 796         }
 797
 798 try_next_callback:
 799         return FALSE;
 800 }
 801
 802 static void __fill_nfacct_result(char *cnt_name, int64_t bytes,
 803                                  struct counter_arg *carg)
 804 {
 805         struct nfacct_rule counter = {
 806                 .carg = carg,
 807                 .name = {0},
 808                 .ifname = {0},
 809                 0
 810         };
 811
 812         classid_bytes_context_s context = {
 813                 .counter = &counter,
 814                 .bytes = bytes,
 815                 .in_limit_reached = FALSE,
 816                 .out_limit_reached = FALSE
 817         };
 818
 819         STC_LOGD("cnt_name %s", cnt_name);
 820
 821         if (!recreate_counter_by_name(cnt_name, &counter)) {
 822                 STC_LOGE("Can't parse counter name %s", cnt_name);
 823                 return;
 824         }
 825
 826         STC_LOGI("classid %lu, iftype %u, iotype %d, intend %d, ifname %s, bytes %lld",
 827                  context.counter->classid, context.counter->iftype,
 828                  context.counter->iotype, context.counter->intend,
 829                  context.counter->ifname, context.bytes);
 830
 831         if (g_system->rstns)
 832                 g_tree_foreach(g_system->rstns,
 833                                __rstn_counter_update_foreach_classid,
 834                                &context);
 835
 836         if (g_system->apps)
 837                 g_tree_foreach(g_system->apps,
 838                                __apps_counter_update_foreach_classid,
 839                                &context);
 840 }
 841
 842 static int __fill_counters(struct rtattr *attr_list[__NFACCT_MAX],
 843                            void *user_data)
 844 {
 845         struct counter_arg *carg = user_data;
 846         char *cnt_name = (char *)RTA_DATA(attr_list[NFACCT_NAME]);
 847         if (carg->initiate) {
 848                 /**
 849                  * TODO: this will be used when daemon starts to update existing
 850                  * counter data if present.
 851                  *
 852                  populate_counters(cnt_name, carg);
 853                  */
 854         } else {
 855                 int64_t *bytes_p =
 856                         (int64_t *)RTA_DATA(attr_list[NFACCT_BYTES]);
 857                 int bytes = be64toh(*bytes_p);
 858                 if (bytes) {
 859                         ++carg->serialized_counters;
 860                         __fill_nfacct_result(cnt_name, bytes, carg);
 861                 }
 862         }
 863
 864         return 0;
 865 }
 866
 867 static int __post_fill_counters(void *user_data)
 868 {
 869         struct counter_arg *carg = user_data;
 870
 871         if (carg->initiate)
 872                 carg->initiate = 0;
 873
 874         return 0;
 875 }
 876
 877 static void __process_network_counter(struct genl *ans,
 878                                       struct counter_arg *carg)
 879 {
 880         struct netlink_serialization_params ser_params = {
 881                 .carg = carg,
 882                 .ans = ans,
 883                 .eval_attr = __fill_counters,
 884                 .post_eval_attr = __post_fill_counters,
 885         };
 886
 887         netlink_serialization_command *netlink =
 888                 netlink_create_command(&ser_params);
 889         if (!netlink) {
 890                 STC_LOGE("Can not create command");
 891                 return;
 892         }
 893
 894         netlink->deserialize_answer(&(netlink->params));
 895 }
 896
 897 static gboolean __process_contr_reply(GIOChannel *source,
 898                                       GIOCondition condition,
 899                                       gpointer user_data)
 900 {
 901         int sock = g_io_channel_unix_get_fd(source);
 902         struct genl ans;
 903         int ret;
 904         stc_s *stc = stc_get_manager();
 905
 906         if ((condition & G_IO_ERR) ||
 907             (condition & G_IO_HUP) ||
 908             (condition & G_IO_NVAL)) {
 909                 /* G_IO_ERR/G_IO_HUP/G_IO_NVAL received */
 910
 911                 __close_contr_sock(g_system);
 912                 return FALSE;
 913         }
 914
 915         if (stc == NULL) {
 916                 STC_LOGE("Can't get stc data");
 917                 goto out;
 918         }
 919
 920         ret = read_netlink(sock,
 921                            &ans, sizeof(struct genl));
 922         STC_LOGD("Counter data received ret [%d]", ret);
 923         if (ret == 0)
 924                 goto out;
 925
 926         stc->carg->ans_len = ret;
 927         __process_network_counter(&ans, stc->carg);
 928
 929         g_idle_add(__flush_apps_stats_to_database, NULL);
 930         g_idle_add(__flush_rstns_counter_to_database, NULL);
 931 out:
 932         return TRUE;
 933 }
 934
 935 static gboolean __update_contr_cb(void *user_data)
 936 {
 937         /* Here we just sent command, answer we receive in another callback */
 938         stc_s *stc = stc_get_manager();
 939         ret_value_msg_if(stc == NULL, STC_ERROR_FAIL, "Can't get stc data");
 940         if (!stc->carg) {
 941                 stc->carg = MALLOC0(counter_arg_s, 1);
 942                 stc->carg->sock = stc_monitor_get_counter_socket();
 943         }
 944
 945         STC_LOGD("Get all counters");
 946         nfacct_send_get_all(stc->carg);
 947
 948         /* we need to continue the timer */
 949         return TRUE;
 950 }
 951 #if 0
 952 static gboolean __rstn_tree_foreach_print(gpointer key, gpointer value,
 953                                           gpointer data)
 954 {
 955         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 956         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 957
 958         __print_rstn(rstn_key, rstn_value);
 959         return FALSE;
 960 }
 961
 962 static void __rstn_tree_printall(void)
 963 {
 964         g_tree_foreach(g_system->rstns, __rstn_tree_foreach_print, NULL);
 965 }
 966 #endif
 967 static stc_rstn_value_s * __rstn_lookup(GTree *rstns_tree,
 968                                         const stc_rstn_key_s *key)
 969 {
 970         stc_rstn_value_s *lookup;
 971
 972         ret_value_msg_if(rstns_tree == NULL, NULL, "rstns_tree is null!");
 973
 974         lookup = g_tree_lookup(rstns_tree, key);
 975
 976         return lookup;
 977 }
 978
 979 static gboolean __remove_restriction(gpointer key, gpointer value,
 980                                      gpointer data)
 981 {
 982         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 983         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 984
 985         /* rstn rule is already removed */
 986         if (rstn_value->rst_state == STC_RESTRICTION_REMOVED)
 987                 return FALSE;
 988
 989         __process_restriction(RST_UNSET, rstn_key, rstn_value, data);
 990         __print_rstn(rstn_key, rstn_value);
 991         return FALSE;
 992 }
 993
 994 static gboolean __add_restriction_debug(gpointer key, gpointer value,
 995                                         gpointer data)
 996 {
 997         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 998         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 999
1000         /* rstn rule is activated */
1001         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1002                 return FALSE;
1003
1004         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1005                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1006         else
1007                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1008
1009         __print_rstn(rstn_key, rstn_value);
1010
1011         return FALSE;
1012 }
1013
1014 static gboolean __add_restriction(gpointer key, gpointer value, gpointer data)
1015 {
1016         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1017         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1018
1019         /* rstn rule is activated */
1020         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1021                 return FALSE;
1022
1023         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1024                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1025         else
1026                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1027
1028         return FALSE;
1029 }
1030
1031 static stc_error_e __rstn_tree_remove(stc_rstn_key_s *key)
1032 {
1033         stc_rstn_value_s *lookup_value;
1034
1035         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1036
1037         lookup_value = __rstn_lookup(g_system->rstns, key);
1038         if (!lookup_value) {
1039                 STC_LOGE("key not found");
1040                 return STC_ERROR_NO_DATA;
1041         }
1042
1043         __remove_restriction(key, lookup_value, NULL);
1044
1045         /* remove counter also */
1046         table_counters_delete(lookup_value->restriction_id);
1047
1048         if (!g_tree_remove(g_system->rstns, key)) {
1049                 STC_LOGD("key not found");
1050                 return STC_ERROR_NO_DATA;
1051         }
1052
1053         return STC_ERROR_NONE;
1054 }
1055
1056 static stc_error_e __rstn_tree_add(stc_rstn_key_s *key,
1057                                    stc_rstn_value_s *value, gboolean debug)
1058 {
1059         stc_rstn_value_s *rstn_value;
1060
1061         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1062
1063         rstn_value = __rstn_lookup(g_system->rstns, key);
1064         if (!rstn_value) {
1065                 stc_rstn_key_s *rstn_key = MALLOC0(stc_rstn_key_s, 1);
1066                 if (!rstn_key) {
1067                         STC_LOGE("rstn_key allocation failed");
1068                         return STC_ERROR_OUT_OF_MEMORY;
1069                 }
1070
1071                 rstn_value = MALLOC0(stc_rstn_value_s, 1);
1072                 if (!rstn_value) {
1073                         STC_LOGE("rstn_value allocation failed");
1074                         FREE(rstn_key);
1075                         return STC_ERROR_OUT_OF_MEMORY;
1076                 }
1077
1078                 rstn_key->app_id = g_strdup(key->app_id);
1079                 rstn_key->ifname = g_strdup(key->ifname);
1080                 rstn_key->imsi = g_strdup(key->imsi);
1081                 rstn_key->iftype = key->iftype;
1082                 rstn_key->roaming = key->roaming;
1083
1084                 g_tree_insert(g_system->rstns, rstn_key, rstn_value);
1085         }
1086
1087         rstn_value->restriction_id = value->restriction_id;
1088         rstn_value->rst_state = value->rst_state;
1089         rstn_value->classid = value->classid;
1090         rstn_value->limit.in_bytes = value->limit.in_bytes;
1091         rstn_value->limit.out_bytes = value->limit.out_bytes;
1092         rstn_value->warn_limit.in_bytes = value->warn_limit.in_bytes;
1093         rstn_value->warn_limit.out_bytes = value->warn_limit.out_bytes;
1094         rstn_value->counter.in_bytes = 0;
1095         rstn_value->counter.out_bytes = 0;
1096         rstn_value->warn_limit_crossed_notified = FALSE;
1097         rstn_value->rstn_limit_crossed_notified = FALSE;
1098
1099         if (debug == TRUE)
1100                 __add_restriction_debug(key, rstn_value, NULL);
1101         else
1102                 __add_restriction(key, rstn_value, NULL);
1103
1104         return STC_ERROR_NONE;
1105 }
1106
1107 static stc_cb_ret_e __insert_restriction_cb(const table_restrictions_info *info,
1108                                             void *user_data)
1109 {
1110         stc_cb_ret_e ret = STC_CONTINUE;
1111
1112         stc_rstn_key_s key;
1113         stc_rstn_value_s value;
1114
1115         memset(&key, 0, sizeof(stc_rstn_key_s));
1116         memset(&value, 0, sizeof(stc_rstn_value_s));
1117
1118         key.app_id = g_strdup(info->app_id);
1119         key.ifname = g_strdup(info->ifname);
1120         key.imsi = g_strdup(info->imsi);
1121         key.iftype = info->iftype;
1122         key.roaming = info->roaming;
1123
1124         value.rst_state = info->rst_state;
1125         value.restriction_id = info->restriction_id;
1126
1127         if (value.rst_state != STC_RESTRICTION_EXCLUDED && info->app_id)
1128                 value.classid = get_classid_by_app_id(info->app_id, TRUE);
1129         else
1130                 value.classid = STC_UNKNOWN_CLASSID;
1131
1132         value.limit.in_bytes = info->rcv_limit;
1133         value.limit.out_bytes = info->send_limit;
1134         value.warn_limit.in_bytes = info->rcv_warn_limit;
1135         value.warn_limit.out_bytes = info->send_warn_limit;
1136
1137         if (__rstn_tree_add(&key, &value, FALSE) != STC_ERROR_NONE)
1138                 ret = STC_CANCEL;
1139
1140         FREE(key.app_id);
1141         FREE(key.ifname);
1142         FREE(key.imsi);
1143         return ret;
1144 }
1145
1146 static void __fill_restritions_list(void)
1147 {
1148         table_restrictions_foreach(__insert_restriction_cb, NULL);
1149         //__rstn_tree_printall();
1150 }
1151
1152 static gboolean __add_rstn_foreach_application(gpointer key,
1153                                                gpointer value,
1154                                                gpointer data)
1155 {
1156         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1157         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1158         gchar *app_id = (gchar *)data;
1159
1160         /* rstn rule is not for applications */
1161         if (rstn_key->app_id == NULL)
1162                 goto out;
1163
1164         /* rstn rule is not for this application */
1165         if (g_strcmp0(rstn_key->app_id, app_id) != 0)
1166                 goto out;
1167
1168         /* rstn rule is already applied */
1169         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1170                 goto out;
1171
1172         /* add restriction to system */
1173         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1174                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1175         else
1176                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1177
1178         __print_rstn(rstn_key, rstn_value);
1179 out:
1180         return FALSE;
1181 }
1182
1183 static void __add_rstns_for_application(gchar *app_id)
1184 {
1185         g_tree_foreach(g_system->rstns, __add_rstn_foreach_application,
1186                        app_id);
1187 }
1188
1189 stc_error_e stc_monitor_init(void)
1190 {
1191         stc_system_s *system = MALLOC0(stc_system_s, 1);
1192         GIOChannel *gio = NULL;
1193
1194         ret_value_msg_if(system == NULL, STC_ERROR_OUT_OF_MEMORY, "stc_system_s malloc fail!");
1195
1196         /* initializing cgroups */
1197         cgroup_init();
1198
1199         /* creating monitored application tree */
1200         system->apps = g_tree_new_full(__apps_tree_key_compare, NULL,
1201                                        __apps_tree_key_free,
1202                                        __apps_tree_value_free);
1203
1204         system->rstns = g_tree_new_full(__rstns_tree_key_compare, NULL,
1205                                         __rstns_tree_key_free,
1206                                         __rstns_tree_value_free);
1207
1208         /* create netlink socket for updating kernel counters */
1209         system->contr_sock = create_netlink(NETLINK_NETFILTER, 0);
1210         if (!(system->contr_sock)) {
1211                 STC_LOGE("failed to open socket");
1212                 FREE(system);
1213                 return STC_ERROR_FAIL;
1214         }
1215
1216         gio = g_io_channel_unix_new(system->contr_sock);
1217         system->contr_gsource_id =
1218                 g_io_add_watch(gio, G_IO_IN | G_IO_ERR | G_IO_HUP,
1219                                (GIOFunc) __process_contr_reply,
1220                                NULL);
1221         g_io_channel_unref(gio);
1222
1223         g_system = system;
1224
1225         /* creating restriction rules tree */
1226         __update_contr_cb(NULL);
1227
1228         /* registering periodic kernel counters update callback */
1229         g_system->contr_timer_id = g_timeout_add_seconds(CONTR_TIMER_INTERVAL,
1230                                                          __update_contr_cb,
1231                                                          NULL);
1232         if (g_system->contr_timer_id == 0) {
1233                 STC_LOGE("Failed to register kernel counters update timer");
1234                 __close_contr_sock(g_system);
1235                 return STC_ERROR_FAIL;
1236         }
1237
1238         __fill_restritions_list();
1239
1240         return STC_ERROR_NONE;
1241 }
1242
1243 stc_error_e stc_monitor_deinit(void)
1244 {
1245         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1246
1247         /* close netlink socket for updating kernel counters */
1248         __close_contr_sock(g_system);
1249
1250         /* remove kernel counters update timer */
1251         if (g_system->contr_timer_id > 0) {
1252                 g_source_remove(g_system->contr_timer_id);
1253                 g_system->contr_timer_id = 0;
1254         }
1255
1256         /* destroy monitored application tree */
1257         g_tree_destroy(g_system->apps);
1258         g_system->apps = NULL;
1259
1260         /* destroy restriction rules tree */
1261         g_tree_destroy(g_system->rstns);
1262         g_system->rstns = NULL;
1263
1264         FREE(g_system);
1265
1266         return STC_ERROR_NONE;
1267 }
1268
1269 stc_error_e stc_monitor_application_add(const stc_app_key_s app_key,
1270                                         const stc_app_value_s app_value)
1271 {
1272         stc_error_e ret = STC_ERROR_NONE;
1273         stc_app_key_s *key;
1274         stc_app_value_s *value;
1275         stc_app_value_s *lookup;
1276
1277         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1278
1279         lookup = __application_lookup(g_system->apps, &app_key);
1280         if (lookup) {
1281                 STC_LOGD("app_key already present");
1282                 return STC_ERROR_NONE;
1283         }
1284
1285         key = MALLOC0(stc_app_key_s, 1);
1286         if (!key) {
1287                 STC_LOGE("key allocation failed");
1288                 return STC_ERROR_OUT_OF_MEMORY;
1289         }
1290
1291         value = MALLOC0(stc_app_value_s, 1);
1292         if (!value) {
1293                 STC_LOGE("value allocation failed");
1294                 FREE(key);
1295                 return STC_ERROR_OUT_OF_MEMORY;
1296         }
1297
1298         key->app_id = g_strdup(app_key.app_id);
1299         key->pkg_id = g_strdup(app_key.pkg_id);
1300
1301         value->type = app_value.type;
1302         value->counter.in_bytes = app_value.counter.in_bytes;
1303         value->counter.out_bytes = app_value.counter.out_bytes;
1304
1305         value->processes = g_tree_new_full(__processes_tree_key_compare, NULL,
1306                                            __processes_tree_key_free,
1307                                            __processes_tree_value_free);
1308
1309         /* create cgroup and update classid */
1310         value->classid = get_classid_by_app_id(app_key.app_id, TRUE);
1311
1312         g_tree_insert(g_system->apps, key, value);
1313
1314         /* add nfacct rule for this classid */
1315         __add_application_monitor(key, value, stc_get_default_connection());
1316         __add_rstns_for_application(app_key.app_id);
1317
1318         return ret;
1319 }
1320
1321 stc_error_e stc_monitor_process_add(const stc_app_key_s app_key,
1322                                     const stc_process_key_s proc_key,
1323                                     const stc_process_value_s proc_value)
1324 {
1325         stc_error_e ret = STC_ERROR_NONE;
1326         stc_app_value_s *app_lookup;
1327         stc_process_key_s *key;
1328         stc_process_value_s *value;
1329         stc_process_value_s *proc_lookup;
1330
1331         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1332
1333         app_lookup = __application_lookup(g_system->apps, &app_key);
1334         if (!app_lookup) {
1335                 STC_LOGD("app_key not found");
1336                 return STC_ERROR_FAIL;
1337         }
1338
1339         proc_lookup = __process_lookup(app_lookup->processes, &proc_key);
1340         if (proc_lookup) {
1341                 STC_LOGD("proc_key already present");
1342                 return STC_ERROR_NONE;
1343         }
1344
1345         key = MALLOC0(stc_process_key_s, 1);
1346         if (!key) {
1347                 STC_LOGE("key allocation failed");
1348                 return STC_ERROR_OUT_OF_MEMORY;
1349         }
1350
1351         value = MALLOC0(stc_process_value_s, 1);
1352         if (!value) {
1353                 STC_LOGE("value allocation failed");
1354                 FREE(key);
1355                 return STC_ERROR_OUT_OF_MEMORY;
1356         }
1357
1358         key->pid = proc_key.pid;
1359
1360         value->ground = proc_value.ground;
1361
1362         g_tree_insert(app_lookup->processes, key, value);
1363
1364         /* add pid to application cgroup */
1365         place_pids_to_net_cgroup(proc_key.pid, app_key.app_id);
1366
1367         return ret;
1368 }
1369
1370 stc_error_e stc_monitor_process_remove(pid_t pid)
1371 {
1372         stc_error_e ret = STC_ERROR_NONE;
1373         stc_process_key_s proc_key = {
1374                 .pid = pid
1375         };
1376
1377         remove_pid_context_s context = {
1378                 .app_key = NULL,
1379                 .proc_key = &proc_key,
1380                 .entry_removed = FALSE,
1381         };
1382
1383         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1384
1385         g_tree_foreach(g_system->apps, __apps_tree_foreach_remove_pid,
1386                        &context);
1387
1388         if (context.entry_removed)
1389                 __application_remove_if_empty(context.app_key);
1390
1391         return ret;
1392 }
1393
1394 stc_error_e stc_monitor_process_update_ground(const stc_app_key_s app_key,
1395                                               const stc_process_key_s proc_key,
1396                                               stc_app_state_e ground)
1397 {
1398         stc_error_e ret = STC_ERROR_NONE;
1399         stc_app_value_s *app_lookup;
1400         stc_process_value_s *proc_lookup;
1401
1402         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1403
1404         app_lookup = __application_lookup(g_system->apps, &app_key);
1405         if (!app_lookup) {
1406                 STC_LOGD("app_key not found");
1407                 return STC_ERROR_FAIL;
1408         }
1409
1410         proc_lookup = __process_lookup(app_lookup->processes, &proc_key);
1411         if (!proc_lookup) {
1412                 STC_LOGD("proc_key not found");
1413                 return STC_ERROR_FAIL;
1414         }
1415
1416         if (proc_lookup->ground != ground)
1417                 proc_lookup->ground = ground;
1418
1419         if (ground == STC_APP_STATE_BACKGROUND) {
1420                 char *background_app_id = g_strconcat(app_key.app_id,
1421                                                      STC_BACKGROUND_APP_SUFFIX,
1422                                                      NULL);
1423                 place_pids_to_net_cgroup(proc_key.pid, background_app_id);
1424                 g_free(background_app_id);
1425         } else {
1426                 place_pids_to_net_cgroup(proc_key.pid, app_key.app_id);
1427         }
1428
1429         return ret;
1430 }
1431
1432 void stc_monitor_update_rstn_by_default_connection(void *data)
1433 {
1434         static default_connection_s old_connection;
1435         default_connection_s *new_connection = (default_connection_s *)data;
1436
1437         if (old_connection.path != NULL) {
1438                 if (g_system->apps)
1439                         g_tree_foreach(g_system->apps,
1440                                        __remove_application_monitor,
1441                                        (gpointer)&old_connection);
1442
1443                 if (g_system->rstns)
1444                         g_tree_foreach(g_system->rstns,
1445                                        __remove_restriction,
1446                                        (gpointer)&old_connection);
1447         }
1448
1449         FREE(old_connection.path);
1450         FREE(old_connection.ifname);
1451         old_connection.type = 0;
1452         old_connection.roaming = 0;
1453
1454         if (new_connection != NULL && new_connection->path != NULL) {
1455                 if (g_system->apps)
1456                         g_tree_foreach(g_system->apps,
1457                                        __add_application_monitor,
1458                                        (gpointer)new_connection);
1459
1460                 if (g_system->rstns)
1461                         g_tree_foreach(g_system->rstns, __add_restriction,
1462                                        NULL);
1463
1464                 old_connection.path = g_strdup(new_connection->path);
1465                 old_connection.ifname = g_strdup(new_connection->ifname);
1466                 old_connection.type = new_connection->type;
1467                 old_connection.roaming = new_connection->roaming;
1468         }
1469 }
1470
1471 stc_error_e stc_monitor_rstns_tree_add(const table_restrictions_info *info)
1472 {
1473         stc_error_e ret;
1474
1475         stc_rstn_key_s key;
1476         stc_rstn_value_s value;
1477
1478         memset(&key, 0, sizeof(stc_rstn_key_s));
1479         memset(&value, 0, sizeof(stc_rstn_value_s));
1480
1481         key.app_id = g_strdup(info->app_id);
1482         key.ifname = g_strdup(info->ifname);
1483         key.imsi = g_strdup(info->imsi);
1484         key.iftype = info->iftype;
1485         key.roaming = info->roaming;
1486
1487         value.rst_state = info->rst_state;
1488         value.restriction_id = info->restriction_id;
1489
1490         if (value.rst_state != STC_RESTRICTION_EXCLUDED && info->app_id)
1491                 value.classid = get_classid_by_app_id(info->app_id, TRUE);
1492         else
1493                 value.classid = STC_UNKNOWN_CLASSID;
1494
1495         value.limit.in_bytes = info->rcv_limit;
1496         value.limit.out_bytes = info->send_limit;
1497         value.warn_limit.in_bytes = info->rcv_warn_limit;
1498         value.warn_limit.out_bytes = info->send_warn_limit;
1499
1500         ret = __rstn_tree_add(&key, &value, TRUE);
1501
1502         FREE(key.app_id);
1503         FREE(key.ifname);
1504         FREE(key.imsi);
1505         return ret;
1506 }
1507
1508 stc_error_e stc_monitor_rstns_tree_remove(const table_restrictions_info *info)
1509 {
1510         stc_error_e ret;
1511
1512         stc_rstn_key_s key = {
1513                 .app_id = g_strdup(info->app_id),
1514                 .ifname = g_strdup(info->ifname),
1515                 .imsi = g_strdup(info->imsi),
1516                 .iftype = info->iftype,
1517                 .roaming = info->roaming,
1518         };
1519
1520         ret = __rstn_tree_remove(&key);
1521
1522         FREE(key.app_id);
1523         FREE(key.ifname);
1524         FREE(key.imsi);
1525         return ret;
1526 }
1527
1528 int stc_monitor_get_counter_socket(void)
1529 {
1530         return g_system->contr_sock;
1531 }