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 "counter.h"
  24 #include "table-statistics.h"
  25 #include "table-counters.h"
  26 #include "stc-monitor.h"
  27
  28 typedef struct {
  29         stc_app_key_s *app_key;
  30         stc_process_key_s *proc_key;
  31         gboolean entry_removed;
  32 } remove_pid_context_s;
  33
  34 typedef struct {
  35         struct nfacct_rule *counter;
  36         int64_t bytes;
  37         gboolean in_limit_reached;
  38         gboolean out_limit_reached;
  39 } classid_bytes_context_s;
  40
  41 static stc_system_s *g_system = NULL;
  42
  43 static nfacct_rule_jump __get_jump_by_intend(struct nfacct_rule *counter)
  44 {
  45         if (counter->intend == NFACCT_WARN)
  46                 return NFACCT_JUMP_ACCEPT;
  47         else if (counter->intend == NFACCT_BLOCK)
  48                 return NFACCT_JUMP_REJECT;
  49
  50         return NFACCT_JUMP_UNKNOWN;
  51 }
  52
  53 static stc_error_e __add_iptables_in(struct nfacct_rule *counter)
  54 {
  55         return produce_net_rule(counter, 0, 0,
  56                 NFACCT_ACTION_INSERT, __get_jump_by_intend(counter),
  57                 NFACCT_COUNTER_IN);
  58 }
  59
  60 static stc_error_e __add_iptables_out(struct nfacct_rule *counter)
  61 {
  62         return produce_net_rule(counter, 0, 0,
  63                 NFACCT_ACTION_INSERT, __get_jump_by_intend(counter),
  64                 NFACCT_COUNTER_OUT);
  65 }
  66
  67 static stc_error_e __del_iptables_in(struct nfacct_rule *counter)
  68 {
  69         return produce_net_rule(counter, 0, 0,
  70                 NFACCT_ACTION_DELETE, __get_jump_by_intend(counter),
  71                 NFACCT_COUNTER_IN);
  72 }
  73
  74 static stc_error_e __del_iptables_out(struct nfacct_rule *counter)
  75 {
  76         return produce_net_rule(counter, 0, 0,
  77                 NFACCT_ACTION_DELETE, __get_jump_by_intend(counter),
  78                 NFACCT_COUNTER_OUT);
  79 }
  80
  81 static int __processes_tree_key_compare(gconstpointer a, gconstpointer b,
  82                                         gpointer UNUSED user_data)
  83 {
  84         stc_process_key_s *key_a = (stc_process_key_s *)a;
  85         stc_process_key_s *key_b = (stc_process_key_s *)b;
  86
  87         return key_a->pid - key_b->pid;
  88 }
  89
  90 static void __processes_tree_value_free(gpointer data)
  91 {
  92         stc_process_value_s *value = (stc_process_value_s *)data;
  93
  94         FREE(value);
  95 }
  96
  97 static void __processes_tree_key_free(gpointer data)
  98 {
  99         stc_process_key_s *key = (stc_process_key_s *)data;
 100
 101         FREE(key);
 102 }
 103
 104 static int __apps_tree_key_compare(gconstpointer a, gconstpointer b,
 105                                    gpointer UNUSED user_data)
 106 {
 107         stc_app_key_s *key_a = (stc_app_key_s *)a;
 108         stc_app_key_s *key_b = (stc_app_key_s *)b;
 109         gint ret;
 110
 111         ret = g_strcmp0(key_a->pkg_id, key_b->pkg_id);
 112         if (ret)
 113                 return ret;
 114
 115         return g_strcmp0(key_a->app_id, key_b->app_id);
 116 }
 117
 118 static void __apps_tree_value_free(gpointer data)
 119 {
 120         stc_app_value_s *value = (stc_app_value_s *)data;
 121
 122         g_tree_destroy(value->processes);
 123         value->processes = NULL;
 124
 125         FREE(value);
 126 }
 127
 128 static void __apps_tree_key_free(gpointer data)
 129 {
 130         stc_app_key_s *key = (stc_app_key_s *)data;
 131
 132         g_free(key->pkg_id);
 133         g_free(key->app_id);
 134         FREE(key);
 135 }
 136
 137 static int __rstns_tree_key_compare(gconstpointer a, gconstpointer b,
 138                                     gpointer UNUSED user_data)
 139 {
 140         stc_rstn_key_s *key_a = (stc_rstn_key_s *)a;
 141         stc_rstn_key_s *key_b = (stc_rstn_key_s *)b;
 142         int ret;
 143
 144         ret = g_strcmp0(key_a->app_id, key_b->app_id);
 145         if (ret != 0)
 146                 return ret;
 147
 148         ret = g_strcmp0(key_a->ifname, key_b->ifname);
 149         if (ret != 0)
 150                 return ret;
 151
 152         ret = g_strcmp0(key_a->imsi, key_b->imsi);
 153         if (ret != 0)
 154                 return ret;
 155
 156         ret = key_a->iftype - key_b->iftype;
 157         if (ret != 0)
 158                 return ret;
 159
 160         return 0;
 161 }
 162
 163 static void __rstns_tree_value_free(gpointer data)
 164 {
 165         stc_rstn_value_s *value = (stc_rstn_value_s *)data;
 166
 167         FREE(value);
 168 }
 169
 170 static void __rstns_tree_key_free(gpointer data)
 171 {
 172         stc_rstn_key_s *key = (stc_rstn_key_s *)data;
 173
 174         FREE(key->app_id);
 175         FREE(key->ifname);
 176         FREE(key->imsi);
 177         FREE(key);
 178 }
 179
 180 static gboolean __processes_tree_foreach_print(gpointer key, gpointer value,
 181                                                gpointer data)
 182 {
 183         stc_process_key_s *proc_key = (stc_process_key_s *)key;
 184         stc_process_value_s *proc_value = (stc_process_value_s *)value;
 185
 186         STC_LOGD("Process entry => PID [%d], Ground state [%d]",
 187                  proc_key->pid, proc_value->ground);
 188         return FALSE;
 189 }
 190
 191 static void __processes_tree_printall(GTree *processes)
 192 {
 193         g_tree_foreach(processes, __processes_tree_foreach_print, NULL);
 194 }
 195
 196 static gboolean __apps_tree_foreach_print(gpointer key, gpointer value,
 197                                           gpointer data)
 198 {
 199         stc_app_key_s *app_key = (stc_app_key_s *)key;
 200         stc_app_value_s *app_value = (stc_app_value_s *)value;
 201
 202         STC_LOGD("Application info => Pkg ID [%s], App ID [%s],"
 203                  " Type [%d], classid [%d],"
 204                  " counter [ in (%lld), out (%lld)]",
 205                  app_key->pkg_id, app_key->app_id,
 206                  app_value->type, app_value->classid,
 207                  app_value->data_usage.in_bytes, app_value->data_usage.out_bytes);
 208
 209         __processes_tree_printall(app_value->processes);
 210         return FALSE;
 211 }
 212
 213 static void __apps_tree_printall(void)
 214 {
 215         g_tree_foreach(g_system->apps, __apps_tree_foreach_print, NULL);
 216 }
 217
 218 static gboolean __apps_tree_foreach_remove_pid(gpointer key, gpointer value,
 219                                                gpointer data)
 220 {
 221         remove_pid_context_s *context = (remove_pid_context_s *)data;
 222         stc_app_value_s *app_value = (stc_app_value_s *)value;
 223
 224         if (!g_tree_remove(app_value->processes, context->proc_key)) {
 225                 STC_LOGD("key not found");
 226                 return FALSE;
 227         }
 228
 229         context->entry_removed = TRUE;
 230         context->app_key = (stc_app_key_s *)key;
 231
 232         return TRUE;
 233 }
 234
 235 static stc_app_value_s * __application_lookup(GTree *apps,
 236                                               const stc_app_key_s *key)
 237 {
 238         stc_app_value_s *lookup;
 239
 240         ret_value_msg_if(apps == NULL, NULL, "apps is null!");
 241
 242         lookup = g_tree_lookup(apps, key);
 243
 244         return lookup;
 245 }
 246
 247 static stc_process_value_s * __process_lookup(GTree *processes,
 248                                               const stc_process_key_s *key)
 249 {
 250         stc_process_value_s *lookup;
 251
 252         ret_value_msg_if(processes == NULL, NULL, "processes is null!");
 253
 254         lookup = g_tree_lookup(processes, key);
 255
 256         return lookup;
 257 }
 258
 259 static gboolean __processes_tree_check_empty(gpointer key, gpointer value,
 260                                              gpointer data)
 261 {
 262         guint *pid_count = (guint *)data;
 263         (*pid_count)++;
 264         return TRUE;
 265 }
 266
 267 static gboolean __add_application_monitor(gpointer key, gpointer value,
 268                                           gpointer data)
 269 {
 270         stc_app_value_s *app_value = (stc_app_value_s *)value;
 271         default_connection_s *connection = (default_connection_s *)data;
 272         stc_s *stc = stc_get_manager();
 273
 274         if (stc && connection && connection->ifname) {
 275                 struct nfacct_rule counter;
 276
 277                 if (!stc->carg) {
 278                         stc->carg = MALLOC0(counter_arg_s, 1);
 279                         stc->carg->sock = stc_monitor_get_counter_socket();
 280                 }
 281
 282                 memset(&counter, 0, sizeof(struct nfacct_rule));
 283
 284                 counter.carg = stc->carg;
 285                 counter.classid = app_value->classid;
 286                 counter.intend = NFACCT_COUNTER;
 287                 g_strlcpy(counter.ifname, connection->ifname, MAX_IFACE_LENGTH);
 288
 289                 __add_iptables_in(&counter);
 290                 __add_iptables_out(&counter);
 291         }
 292
 293         return FALSE;
 294 }
 295
 296 static gboolean __remove_application_monitor(gpointer key, gpointer value,
 297                                              gpointer data)
 298 {
 299         stc_app_value_s *app_value = (stc_app_value_s *)value;
 300         default_connection_s *connection = (default_connection_s *)data;
 301         stc_s *stc = stc_get_manager();
 302
 303         if (stc && connection && connection->ifname) {
 304                 struct nfacct_rule counter;
 305
 306                 if (!stc->carg) {
 307                         stc->carg = MALLOC0(counter_arg_s, 1);
 308                         stc->carg->sock = stc_monitor_get_counter_socket();
 309                 }
 310
 311                 memset(&counter, 0, sizeof(struct nfacct_rule));
 312
 313                 counter.carg = stc->carg;
 314                 counter.classid = app_value->classid;
 315                 counter.intend = NFACCT_COUNTER;
 316                 g_strlcpy(counter.ifname, connection->ifname, MAX_IFACE_LENGTH);
 317
 318                 __del_iptables_in(&counter);
 319                 __del_iptables_out(&counter);
 320         }
 321
 322         return FALSE;
 323 }
 324
 325 static void __print_rstn(stc_rstn_key_s *rstn_key, stc_rstn_value_s *rstn_value)
 326 {
 327         STC_LOGI("rstn info => rstn_id [%llu], "
 328                  "app_id [%s], classid [%lu], ifname [%s], "
 329                  "iftype [%d], rst_state [%d], "
 330                  "limit [ in (%lld), out (%lld)], "
 331                  "warn_limit [ in (%lld), out (%lld)], "
 332                  "counter [ in (%lld), out (%lld)], "
 333                  "roaming [%d], imsi [%s]",
 334                  rstn_value->restriction_id,
 335                  rstn_key->app_id, rstn_value->classid , rstn_key->ifname,
 336                  rstn_key->iftype, rstn_value->rst_state,
 337                  rstn_value->limit.in_bytes, rstn_value->limit.out_bytes,
 338                  rstn_value->warn_limit.in_bytes,
 339                  rstn_value->warn_limit.out_bytes,
 340                  rstn_value->counter.in_bytes, rstn_value->counter.out_bytes,
 341                  rstn_key->roaming, rstn_key->imsi);
 342 }
 343
 344 static void __process_restriction(enum traffic_restriction_type rst_type,
 345                                   stc_rstn_key_s *rstn_key,
 346                                   stc_rstn_value_s *rstn_value, void *data)
 347 {
 348         stc_data_counter_s effective_limit, effective_warn_limit;
 349         default_connection_s *old_connection = (default_connection_s *)data;
 350         default_connection_s *connection = NULL;
 351
 352         if (old_connection != NULL)
 353                 connection = old_connection;
 354         else
 355                 connection = stc_get_default_connection();
 356
 357         /* no default ifname */
 358         if (connection->ifname == NULL)
 359                 return;
 360
 361         /* rstn not applicable for this interface */
 362         if (rstn_key->ifname != NULL && g_strcmp0("", rstn_key->ifname) != 0 &&
 363             g_strcmp0(connection->ifname, rstn_key->ifname) != 0)
 364                 return;
 365
 366         /* classid is invalid */
 367         if (rstn_value->classid == STC_UNKNOWN_CLASSID)
 368                 return;
 369
 370         effective_limit.out_bytes = rstn_value->limit.out_bytes;
 371         effective_limit.in_bytes = rstn_value->limit.in_bytes;
 372         effective_warn_limit.out_bytes = rstn_value->warn_limit.out_bytes;
 373         effective_warn_limit.in_bytes = rstn_value->warn_limit.in_bytes;
 374
 375         if (rst_type == RST_SET) {
 376                 /* TODO: Change this to runtime memory */
 377                 table_counters_info info;
 378
 379                 memset(&info, 0, sizeof(table_counters_info));
 380                 table_counters_get(rstn_value->restriction_id, &info);
 381
 382                 effective_limit.out_bytes -= info.sent_bytes;
 383                 effective_limit.in_bytes -= info.rcv_bytes;
 384                 effective_warn_limit.out_bytes -= info.sent_bytes;
 385                 effective_warn_limit.in_bytes -= info.rcv_bytes;
 386
 387                 if (effective_limit.in_bytes < 0) {
 388                         effective_limit.in_bytes = 0;
 389                         rstn_value->in_limit_reached = TRUE;
 390                 }
 391
 392                 if (effective_limit.out_bytes < 0) {
 393                         effective_limit.out_bytes = 0;
 394                         rstn_value->out_limit_reached = TRUE;
 395                 }
 396
 397                 if (effective_warn_limit.in_bytes < 0)
 398                         effective_warn_limit.in_bytes = 0;
 399
 400                 if (effective_warn_limit.out_bytes < 0)
 401                         effective_warn_limit.out_bytes = 0;
 402                  STC_LOGD("datausage [in: %lld, out: %lld]",
 403                           info.rcv_bytes, info.sent_bytes);
 404         }
 405
 406         STC_LOGD("rstn_id [%llu], effective limit [in: %lld, out: %lld], "
 407                  "effective warn limit [in: %lld, out: %lld], "
 408                  "datausage [in: %lld, out: %lld]",
 409                  rstn_value->restriction_id,
 410                  effective_limit.in_bytes, effective_limit.out_bytes,
 411                  effective_warn_limit.in_bytes, effective_warn_limit.out_bytes);
 412
 413         send_net_restriction(rst_type,
 414                              rstn_value->classid,
 415                              0 /*quota_id*/,
 416                              connection->type,
 417                              effective_limit.out_bytes,
 418                              effective_limit.in_bytes,
 419                              effective_warn_limit.out_bytes,
 420                              effective_warn_limit.in_bytes,
 421                              connection->ifname);
 422         switch (rst_type) {
 423         case RST_SET:
 424                 rstn_value->rst_state = STC_RESTRICTION_ACTIVATED;
 425                 rstn_value->in_limit_reached = FALSE;
 426                 rstn_value->out_limit_reached = FALSE;
 427                 break;
 428         case RST_EXCLUDE:
 429                 ;//Do Nothing
 430                 break;
 431         case RST_UNSET:
 432                 rstn_value->rst_state = STC_RESTRICTION_REMOVED;
 433                 rstn_value->in_limit_reached = FALSE;
 434                 rstn_value->out_limit_reached = FALSE;
 435                 break;
 436         default:
 437                 ;//Do Nothing
 438         }
 439 }
 440
 441 static gboolean __remove_rstns_foreach_application(gpointer key,
 442                                                    gpointer value,
 443                                                    gpointer data)
 444 {
 445         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 446         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 447         gchar *app_id = (gchar *)data;
 448
 449         /* rstn rule is not for applications */
 450         if (rstn_key->app_id == NULL)
 451                 goto out;
 452
 453         /* rstn rule is not for this application */
 454         if (g_strcmp0(rstn_key->app_id, app_id) != 0)
 455                 goto out;
 456
 457         /* rstn rule is already removed */
 458         if (rstn_value->rst_state == STC_RESTRICTION_REMOVED)
 459                 goto out;
 460
 461         /* remove restriction from system */
 462         __process_restriction(RST_UNSET, rstn_key, rstn_value, data);
 463
 464         __print_rstn(rstn_key, rstn_value);
 465 out:
 466         return FALSE;
 467 }
 468
 469 static void __remove_rstns_for_application(gchar *app_id)
 470 {
 471         g_tree_foreach(g_system->rstns, __remove_rstns_foreach_application,
 472                        app_id);
 473 }
 474
 475 static stc_error_e __application_remove_if_empty(const stc_app_key_s *app_key)
 476 {
 477         stc_error_e ret = STC_ERROR_NONE;
 478         guint pid_count = 0;
 479         stc_app_value_s *lookup;
 480
 481         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
 482
 483         lookup = __application_lookup(g_system->apps, app_key);
 484         if (!lookup) {
 485                 STC_LOGE("app_key not found");
 486                 return STC_ERROR_NO_DATA;
 487         }
 488
 489         g_tree_foreach(lookup->processes, __processes_tree_check_empty,
 490                        &pid_count);
 491
 492         if (!pid_count) {
 493                 /* remove nfacct rule for this classid */
 494                 __remove_application_monitor((gpointer) app_key, lookup,
 495                                              stc_get_default_connection());
 496                 __remove_rstns_for_application(app_key->app_id);
 497         }
 498
 499         if (!g_tree_remove(g_system->apps, app_key)) {
 500                 ret = STC_ERROR_NO_DATA;
 501                 STC_LOGE("key not found");
 502         }
 503
 504         return ret;
 505 }
 506
 507 static stc_error_e __close_contr_sock(stc_system_s *system)
 508 {
 509         ret_value_msg_if(system == NULL, STC_ERROR_INVALID_PARAMETER, "invalid parameter");
 510
 511         /* close netlink socket for updating kernel counters */
 512         if (g_system->contr_sock != -1) {
 513                 close(g_system->contr_sock);
 514                 g_system->contr_sock = -1;
 515         }
 516
 517         if (g_system->contr_gsource_id != 0) {
 518                 g_source_remove(g_system->contr_gsource_id);
 519                 g_system->contr_gsource_id = 0;
 520         }
 521
 522         return STC_ERROR_NONE;
 523 }
 524
 525 static gboolean __rstn_counter_update_foreach_classid(gpointer key,
 526                                                       gpointer value,
 527                                                       gpointer data)
 528 {
 529         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 530         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 531         classid_bytes_context_s *context = (classid_bytes_context_s *)data;
 532
 533         if (context->counter->intend != NFACCT_COUNTER)
 534                 goto try_next_callback;
 535
 536         if (rstn_value->classid != context->counter->classid)
 537                 goto try_next_callback;
 538
 539         if (rstn_value->in_limit_reached == TRUE) {
 540                 context->in_limit_reached = TRUE;
 541                 goto try_next_callback;
 542         }
 543
 544         if (rstn_value->out_limit_reached == TRUE) {
 545                 context->out_limit_reached = TRUE;
 546                 goto try_next_callback;
 547         }
 548
 549         switch (context->counter->iotype) {
 550         case NFACCT_COUNTER_IN:
 551                 rstn_value->counter.in_bytes += context->bytes;
 552
 553                 if (rstn_value->counter.in_bytes >= rstn_value->warn_limit.in_bytes
 554                     && rstn_value->warn_limit_crossed_notified == FALSE) {
 555                         gboolean rv = FALSE;
 556                         stc_s *stc = (stc_s *)stc_get_manager();
 557                         ret_value_msg_if(stc == NULL, FALSE, "failed to get stc data");
 558
 559                         rv = stc_manager_dbus_emit_signal(stc->connection,
 560                                                           STC_DBUS_SERVICE_RESTRICTION_PATH,
 561                                                           STC_DBUS_INTERFACE_RESTRICTION,
 562                                                           "WarnThresholdCrossed",
 563                                                           g_variant_new("(s)", rstn_key->app_id));
 564                         if (rv == TRUE)
 565                                 rstn_value->warn_limit_crossed_notified = TRUE;
 566                 }
 567
 568                 /* block immediately */
 569                 if (rstn_value->counter.in_bytes >= rstn_value->limit.in_bytes) {
 570                         __del_iptables_in(context->counter);
 571                         __add_iptables_in(context->counter);
 572                         rstn_value->in_limit_reached = TRUE;
 573
 574                         if (rstn_value->rstn_limit_crossed_notified == FALSE) {
 575                                 gboolean rv = FALSE;
 576                                 stc_s *stc = (stc_s *)stc_get_manager();
 577                                 ret_value_msg_if(stc == NULL, FALSE, "failed to get stc data");
 578
 579                                 rv = stc_manager_dbus_emit_signal(stc->connection,
 580                                                                   STC_DBUS_SERVICE_RESTRICTION_PATH,
 581                                                                   STC_DBUS_INTERFACE_RESTRICTION,
 582                                                                   "RestrictionThresholdCrossed",
 583                                                                   g_variant_new("(s)", rstn_key->app_id));
 584                                 if (rv == TRUE)
 585                                         rstn_value->rstn_limit_crossed_notified = TRUE;
 586                         }
 587                 }
 588
 589                 g_system->rstns_tree_updated = TRUE;
 590                 __print_rstn(rstn_key, rstn_value);
 591                 break;
 592         case NFACCT_COUNTER_OUT:
 593                 rstn_value->counter.out_bytes += context->bytes;
 594
 595                 if (rstn_value->counter.out_bytes >= rstn_value->limit.out_bytes
 596                     && rstn_value->warn_limit_crossed_notified == FALSE) {
 597                         gboolean rv = FALSE;
 598                         stc_s *stc = (stc_s *)stc_get_manager();
 599                         ret_value_msg_if(stc == NULL, FALSE, "failed to get stc data");
 600
 601                         rv = stc_manager_dbus_emit_signal(stc->connection,
 602                                                           STC_DBUS_SERVICE_RESTRICTION_PATH,
 603                                                           STC_DBUS_INTERFACE_RESTRICTION,
 604                                                           "WarnThresholdCrossed",
 605                                                           g_variant_new("(s)", rstn_key->app_id));
 606                         if (rv == TRUE)
 607                                 rstn_value->warn_limit_crossed_notified = TRUE;
 608                 }
 609
 610                 /* block immediately */
 611                 if (rstn_value->counter.out_bytes >= rstn_value->limit.out_bytes) {
 612                         __del_iptables_out(context->counter);
 613                         __add_iptables_out(context->counter);
 614                         rstn_value->out_limit_reached = TRUE;
 615
 616                         if (rstn_value->rstn_limit_crossed_notified == FALSE) {
 617                                 gboolean rv = FALSE;
 618                                 stc_s *stc = (stc_s *)stc_get_manager();
 619                                 ret_value_msg_if(stc == NULL, FALSE, "failed to get stc data");
 620
 621                                 rv = stc_manager_dbus_emit_signal(stc->connection,
 622                                                                   STC_DBUS_SERVICE_RESTRICTION_PATH,
 623                                                                   STC_DBUS_INTERFACE_RESTRICTION,
 624                                                                   "RestrictionThresholdCrossed",
 625                                                                   g_variant_new("(s)", rstn_key->app_id));
 626                                 if (rv == TRUE)
 627                                         rstn_value->rstn_limit_crossed_notified = TRUE;
 628                         }
 629                 }
 630
 631                 g_system->rstns_tree_updated = TRUE;
 632                 __print_rstn(rstn_key, rstn_value);
 633                 break;
 634         default:
 635                 STC_LOGE("unknown iotype");
 636         }
 637
 638
 639 try_next_callback:
 640         return FALSE;
 641 }
 642
 643 static gboolean __update_app_statistics(gpointer key, gpointer value,
 644                                         gpointer data)
 645 {
 646         stc_app_key_s *app_key = (stc_app_key_s *)key;
 647         stc_app_value_s *app_value = (stc_app_value_s *)value;
 648         time_t *touch_time = (time_t *)data;
 649         stc_db_classid_iftype_key stat_key;
 650         stc_db_app_stats stat;
 651         char *default_ifname = stc_default_connection_get_ifname();
 652
 653         memset(&stat_key, 0, sizeof(stc_db_classid_iftype_key));
 654         memset(&stat, 0 , sizeof(stc_db_app_stats));
 655
 656         stat_key.classid = app_value->classid;
 657         stat_key.iftype = stc_default_connection_get_type();
 658         if (STC_IFACE_DATACALL == stat_key.iftype)
 659                 stat_key.imsi = g_strdup("unknown");
 660         else
 661                 stat_key.imsi = g_strdup("noneimsi");
 662         g_strlcpy(stat_key.ifname, default_ifname, MAX_IFACE_LENGTH);
 663
 664         stat.app_id = g_strdup(app_key->app_id);
 665         stat.snd_count = app_value->counter.out_bytes;
 666         stat.rcv_count = app_value->counter.in_bytes;
 667         stat.delta_snd = 0;
 668         stat.delta_rcv = 0;
 669         stat.is_roaming = stc_default_connection_get_roaming();
 670         stat.ground = STC_APP_STATE_UNKNOWN;
 671
 672         table_statistics_insert(&stat_key, &stat, *touch_time);
 673
 674         app_value->counter.out_bytes = 0;
 675         app_value->counter.in_bytes = 0;
 676
 677         FREE(stat.app_id);
 678         FREE(stat_key.imsi);
 679         FREE(default_ifname);
 680
 681         return FALSE;
 682 }
 683
 684 static gboolean __flush_apps_stats_to_database(gpointer user_data)
 685 {
 686         time_t current_time = time(0);
 687
 688         if (g_system->apps_tree_updated == FALSE)
 689                 return G_SOURCE_REMOVE;
 690
 691         g_system->apps_tree_updated = FALSE;
 692
 693         if (g_system->apps)
 694                 g_tree_foreach(g_system->apps,
 695                                __update_app_statistics,
 696                                &current_time);
 697
 698         STC_LOGI("Flushed app stats to database");
 699         return G_SOURCE_REMOVE;
 700 }
 701
 702 static gboolean __update_counter_statistics(gpointer key, gpointer value,
 703                                             gpointer data)
 704 {
 705         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 706         table_counters_info info = {
 707                 .restriction_id = rstn_value->restriction_id,
 708                 .sent_bytes = rstn_value->counter.out_bytes,
 709                 .rcv_bytes = rstn_value->counter.in_bytes
 710         };
 711
 712         table_counters_update_counters(&info);
 713
 714         return FALSE;
 715 }
 716
 717 static gboolean __flush_rstns_counter_to_database(gpointer user_data)
 718 {
 719         time_t current_time = time(0);
 720
 721         if (g_system->rstns_tree_updated == FALSE)
 722                 return G_SOURCE_REMOVE;
 723
 724         g_system->rstns_tree_updated = FALSE;
 725
 726         if (g_system->rstns)
 727                 g_tree_foreach(g_system->rstns,
 728                                __update_counter_statistics,
 729                                &current_time);
 730
 731         STC_LOGI("Flushed rstns counters to database");
 732         return G_SOURCE_REMOVE;
 733 }
 734
 735 static gboolean __apps_counter_update_foreach_classid(gpointer key,
 736                                                       gpointer value,
 737                                                       gpointer data)
 738 {
 739         stc_app_key_s *app_key = (stc_app_key_s *)key;
 740         stc_app_value_s *app_value = (stc_app_value_s *)value;
 741         classid_bytes_context_s *context = (classid_bytes_context_s *)data;
 742
 743         if (context->counter->intend != NFACCT_COUNTER)
 744                 goto try_next_callback;
 745
 746         if (app_value->classid != context->counter->classid)
 747                 goto try_next_callback;
 748
 749         switch (context->counter->iotype) {
 750         case NFACCT_COUNTER_IN:
 751                 app_value->data_usage.in_bytes += context->bytes;
 752                 app_value->counter.in_bytes = context->bytes;
 753                 g_system->apps_tree_updated = TRUE;
 754
 755                 __apps_tree_foreach_print(app_key, app_value, NULL);
 756                 break;
 757         case NFACCT_COUNTER_OUT:
 758                 app_value->data_usage.out_bytes += context->bytes;
 759                 app_value->counter.out_bytes = context->bytes;
 760                 g_system->apps_tree_updated = TRUE;
 761
 762                 __apps_tree_foreach_print(app_key, app_value, NULL);
 763                 break;
 764         default:
 765                 STC_LOGE("unknown iotype");
 766         }
 767
 768 try_next_callback:
 769         return FALSE;
 770 }
 771
 772 static void __fill_nfacct_result(char *cnt_name, int64_t bytes,
 773                                  struct counter_arg *carg)
 774 {
 775         struct nfacct_rule counter = {
 776                 .carg = carg,
 777                 .name = {0},
 778                 .ifname = {0},
 779                 0
 780         };
 781
 782         classid_bytes_context_s context = {
 783                 .counter = &counter,
 784                 .bytes = bytes,
 785                 .in_limit_reached = FALSE,
 786                 .out_limit_reached = FALSE
 787         };
 788
 789         STC_LOGD("cnt_name %s", cnt_name);
 790
 791         if (!recreate_counter_by_name(cnt_name, &counter)) {
 792                 STC_LOGE("Can't parse counter name %s", cnt_name);
 793                 return;
 794         }
 795
 796         STC_LOGI("classid %lu, iftype %u, iotype %d, intend %d, ifname %s, bytes %lld",
 797                  context.counter->classid, context.counter->iftype,
 798                  context.counter->iotype, context.counter->intend,
 799                  context.counter->ifname, context.bytes);
 800
 801         if (g_system->rstns)
 802                 g_tree_foreach(g_system->rstns,
 803                                __rstn_counter_update_foreach_classid,
 804                                &context);
 805
 806         if (g_system->apps)
 807                 g_tree_foreach(g_system->apps,
 808                                __apps_counter_update_foreach_classid,
 809                                &context);
 810 }
 811
 812 static int __fill_counters(struct rtattr *attr_list[__NFACCT_MAX],
 813                            void *user_data)
 814 {
 815         struct counter_arg *carg = user_data;
 816         char *cnt_name = (char *)RTA_DATA(attr_list[NFACCT_NAME]);
 817         if (carg->initiate) {
 818                 /**
 819                  * TODO: this will be used when daemon starts to update existing
 820                  * counter data if present.
 821                  *
 822                  populate_counters(cnt_name, carg);
 823                  */
 824         } else {
 825                 int64_t *bytes_p =
 826                         (int64_t *)RTA_DATA(attr_list[NFACCT_BYTES]);
 827                 int bytes = be64toh(*bytes_p);
 828                 if (bytes) {
 829                         ++carg->serialized_counters;
 830                         __fill_nfacct_result(cnt_name, bytes, carg);
 831                 }
 832         }
 833
 834         return 0;
 835 }
 836
 837 static int __post_fill_counters(void *user_data)
 838 {
 839         struct counter_arg *carg = user_data;
 840
 841         if (carg->initiate)
 842                 carg->initiate = 0;
 843
 844         return 0;
 845 }
 846
 847 static void __process_network_counter(struct genl *ans,
 848                                       struct counter_arg *carg)
 849 {
 850         struct netlink_serialization_params ser_params = {
 851                 .carg = carg,
 852                 .ans = ans,
 853                 .eval_attr = __fill_counters,
 854                 .post_eval_attr = __post_fill_counters,
 855         };
 856
 857         netlink_serialization_command *netlink =
 858                 netlink_create_command(&ser_params);
 859         if (!netlink) {
 860                 STC_LOGE("Can not create command");
 861                 return;
 862         }
 863
 864         netlink->deserialize_answer(&(netlink->params));
 865 }
 866
 867 static gboolean __process_contr_reply(GIOChannel *source,
 868                                       GIOCondition condition,
 869                                       gpointer user_data)
 870 {
 871         int sock = g_io_channel_unix_get_fd(source);
 872         struct genl ans;
 873         int ret;
 874         stc_s *stc = stc_get_manager();
 875
 876         if ((condition & G_IO_ERR) ||
 877             (condition & G_IO_HUP) ||
 878             (condition & G_IO_NVAL)) {
 879                 /* G_IO_ERR/G_IO_HUP/G_IO_NVAL received */
 880
 881                 __close_contr_sock(g_system);
 882                 return FALSE;
 883         }
 884
 885         if (stc == NULL) {
 886                 STC_LOGE("Can't get stc data");
 887                 goto out;
 888         }
 889
 890         ret = read_netlink(sock,
 891                            &ans, sizeof(struct genl));
 892         STC_LOGD("Counter data received ret [%d]", ret);
 893         if (ret == 0)
 894                 goto out;
 895
 896         stc->carg->ans_len = ret;
 897         __process_network_counter(&ans, stc->carg);
 898
 899         g_idle_add(__flush_apps_stats_to_database, NULL);
 900         g_idle_add(__flush_rstns_counter_to_database, NULL);
 901 out:
 902         return TRUE;
 903 }
 904
 905 static gboolean __update_contr_cb(void *user_data)
 906 {
 907         /* Here we just sent command, answer we receive in another callback */
 908         stc_s *stc = stc_get_manager();
 909         ret_value_msg_if(stc == NULL, STC_ERROR_FAIL, "Can't get stc data");
 910         if (!stc->carg) {
 911                 stc->carg = MALLOC0(counter_arg_s, 1);
 912                 stc->carg->sock = stc_monitor_get_counter_socket();
 913         }
 914
 915         STC_LOGD("Get all counters");
 916         nfacct_send_get_all(stc->carg);
 917
 918         /* we need to continue the timer */
 919         return TRUE;
 920 }
 921 #if 0
 922 static gboolean __rstn_tree_foreach_print(gpointer key, gpointer value,
 923                                           gpointer data)
 924 {
 925         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 926         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 927
 928         __print_rstn(rstn_key, rstn_value);
 929         return FALSE;
 930 }
 931
 932 static void __rstn_tree_printall(void)
 933 {
 934         g_tree_foreach(g_system->rstns, __rstn_tree_foreach_print, NULL);
 935 }
 936 #endif
 937 static stc_rstn_value_s * __rstn_lookup(GTree *rstns_tree,
 938                                         const stc_rstn_key_s *key)
 939 {
 940         stc_rstn_value_s *lookup;
 941
 942         ret_value_msg_if(rstns_tree == NULL, NULL, "rstns_tree is null!");
 943
 944         lookup = g_tree_lookup(rstns_tree, key);
 945
 946         return lookup;
 947 }
 948
 949 static gboolean __remove_restriction(gpointer key, gpointer value,
 950                                      gpointer data)
 951 {
 952         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 953         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 954
 955         /* rstn rule is already removed */
 956         if (rstn_value->rst_state == STC_RESTRICTION_REMOVED)
 957                 return FALSE;
 958
 959         __process_restriction(RST_UNSET, rstn_key, rstn_value, data);
 960         __print_rstn(rstn_key, rstn_value);
 961         return FALSE;
 962 }
 963
 964 static gboolean __add_restriction_debug(gpointer key, gpointer value,
 965                                         gpointer data)
 966 {
 967         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 968         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 969
 970         /* rstn rule is activated */
 971         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
 972                 return FALSE;
 973
 974         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
 975                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
 976         else
 977                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
 978
 979         __print_rstn(rstn_key, rstn_value);
 980
 981         return FALSE;
 982 }
 983
 984 static gboolean __add_restriction(gpointer key, gpointer value, gpointer data)
 985 {
 986         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 987         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 988
 989         /* rstn rule is activated */
 990         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
 991                 return FALSE;
 992
 993         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
 994                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
 995         else
 996                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
 997
 998         return FALSE;
 999 }
1000
1001 static stc_error_e __rstn_tree_remove(stc_rstn_key_s *key)
1002 {
1003         stc_rstn_value_s *lookup_value;
1004
1005         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1006
1007         lookup_value = __rstn_lookup(g_system->rstns, key);
1008         if (!lookup_value) {
1009                 STC_LOGE("key not found");
1010                 return STC_ERROR_NO_DATA;
1011         }
1012
1013         __remove_restriction(key, lookup_value, NULL);
1014
1015         /* remove counter also */
1016         table_counters_delete(lookup_value->restriction_id);
1017
1018         if (!g_tree_remove(g_system->rstns, key)) {
1019                 STC_LOGD("key not found");
1020                 return STC_ERROR_NO_DATA;
1021         }
1022
1023         return STC_ERROR_NONE;
1024 }
1025
1026 static stc_error_e __rstn_tree_add(stc_rstn_key_s *key,
1027                                    stc_rstn_value_s *value, gboolean debug)
1028 {
1029         stc_rstn_value_s *rstn_value;
1030
1031         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1032
1033         rstn_value = __rstn_lookup(g_system->rstns, key);
1034         if (!rstn_value) {
1035                 stc_rstn_key_s *rstn_key = MALLOC0(stc_rstn_key_s, 1);
1036                 if (!rstn_key) {
1037                         STC_LOGE("rstn_key allocation failed");
1038                         return STC_ERROR_OUT_OF_MEMORY;
1039                 }
1040
1041                 rstn_value = MALLOC0(stc_rstn_value_s, 1);
1042                 if (!rstn_value) {
1043                         STC_LOGE("rstn_value allocation failed");
1044                         FREE(rstn_key);
1045                         return STC_ERROR_OUT_OF_MEMORY;
1046                 }
1047
1048                 rstn_key->app_id = g_strdup(key->app_id);
1049                 rstn_key->ifname = g_strdup(key->ifname);
1050                 rstn_key->imsi = g_strdup(key->imsi);
1051                 rstn_key->iftype = key->iftype;
1052                 rstn_key->roaming = key->roaming;
1053
1054                 g_tree_insert(g_system->rstns, rstn_key, rstn_value);
1055         }
1056
1057         rstn_value->restriction_id = value->restriction_id;
1058         rstn_value->rst_state = value->rst_state;
1059         rstn_value->classid = value->classid;
1060         rstn_value->limit.in_bytes = value->limit.in_bytes;
1061         rstn_value->limit.out_bytes = value->limit.out_bytes;
1062         rstn_value->warn_limit.in_bytes = value->warn_limit.in_bytes;
1063         rstn_value->warn_limit.out_bytes = value->warn_limit.out_bytes;
1064         rstn_value->counter.in_bytes = 0;
1065         rstn_value->counter.out_bytes = 0;
1066         rstn_value->warn_limit_crossed_notified = FALSE;
1067         rstn_value->rstn_limit_crossed_notified = FALSE;
1068
1069         if (debug == TRUE)
1070                 __add_restriction_debug(key, rstn_value, NULL);
1071         else
1072                 __add_restriction(key, rstn_value, NULL);
1073
1074         return STC_ERROR_NONE;
1075 }
1076
1077 static stc_cb_ret_e __insert_restriction_cb(const table_restrictions_info *info,
1078                                             void *user_data)
1079 {
1080         stc_cb_ret_e ret = STC_CONTINUE;
1081
1082         stc_rstn_key_s key;
1083         stc_rstn_value_s value;
1084
1085         memset(&key, 0, sizeof(stc_rstn_key_s));
1086         memset(&value, 0, sizeof(stc_rstn_value_s));
1087
1088         key.app_id = g_strdup(info->app_id);
1089         key.ifname = g_strdup(info->ifname);
1090         key.imsi = g_strdup(info->imsi);
1091         key.iftype = info->iftype;
1092         key.roaming = info->roaming;
1093
1094         value.rst_state = info->rst_state;
1095         value.restriction_id = info->restriction_id;
1096
1097         if (value.rst_state != STC_RESTRICTION_EXCLUDED)
1098                 value.classid = get_classid_by_app_id(info->app_id ?
1099                                                       info->app_id :
1100                                                       STC_ALL_APP, TRUE);
1101         else
1102                 value.classid = STC_UNKNOWN_CLASSID;
1103
1104         value.limit.in_bytes = info->rcv_limit;
1105         value.limit.out_bytes = info->send_limit;
1106         value.warn_limit.in_bytes = info->rcv_warn_limit;
1107         value.warn_limit.out_bytes = info->send_warn_limit;
1108
1109         if (__rstn_tree_add(&key, &value, FALSE) != STC_ERROR_NONE)
1110                 ret = STC_CANCEL;
1111
1112         FREE(key.app_id);
1113         FREE(key.ifname);
1114         FREE(key.imsi);
1115         return ret;
1116 }
1117
1118 static void __fill_restritions_list(void)
1119 {
1120         table_restrictions_foreach(__insert_restriction_cb, NULL);
1121         //__rstn_tree_printall();
1122 }
1123
1124 static gboolean __add_rstn_foreach_application(gpointer key,
1125                                                gpointer value,
1126                                                gpointer data)
1127 {
1128         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1129         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1130         gchar *app_id = (gchar *)data;
1131
1132         /* rstn rule is not for applications */
1133         if (rstn_key->app_id == NULL)
1134                 goto out;
1135
1136         /* rstn rule is not for this application */
1137         if (g_strcmp0(rstn_key->app_id, app_id) != 0)
1138                 goto out;
1139
1140         /* rstn rule is already applied */
1141         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1142                 goto out;
1143
1144         /* add restriction to system */
1145         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1146                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1147         else
1148                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1149
1150         __print_rstn(rstn_key, rstn_value);
1151 out:
1152         return FALSE;
1153 }
1154
1155 static void __add_rstns_for_application(gchar *app_id)
1156 {
1157         g_tree_foreach(g_system->rstns, __add_rstn_foreach_application,
1158                        app_id);
1159 }
1160
1161 /* used only for (STC_ALL_APP/STC_BACKGROUND_APP_NAME) */
1162 static void __stc_monitor_add_application_by_app_id(const char *app_id)
1163 {
1164         stc_app_key_s app_key;
1165         stc_app_value_s app_value;
1166
1167         if (app_id == NULL)
1168                 return;
1169
1170         memset(&app_key, 0, sizeof(stc_app_key_s));
1171         memset(&app_value, 0, sizeof(stc_app_value_s));
1172
1173         app_key.pkg_id = g_strdup(app_id);
1174         app_key.app_id = g_strdup(app_id);
1175
1176         app_value.type = STC_APP_TYPE_NONE;
1177         app_value.processes = NULL;
1178         app_value.counter.in_bytes = 0;
1179         app_value.counter.out_bytes = 0;
1180
1181         stc_monitor_application_add(app_key, app_value);
1182
1183         FREE(app_key.pkg_id);
1184         FREE(app_key.app_id);
1185
1186         __apps_tree_printall();
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         /* creating monitored application tree */
1197         system->apps = g_tree_new_full(__apps_tree_key_compare, NULL,
1198                                        __apps_tree_key_free,
1199                                        __apps_tree_value_free);
1200
1201         system->rstns = g_tree_new_full(__rstns_tree_key_compare, NULL,
1202                                         __rstns_tree_key_free,
1203                                         __rstns_tree_value_free);
1204
1205         /* create netlink socket for updating kernel counters */
1206         system->contr_sock = create_netlink(NETLINK_NETFILTER, 0);
1207         if (!(system->contr_sock)) {
1208                 STC_LOGE("failed to open socket");
1209                 FREE(system);
1210                 return STC_ERROR_FAIL;
1211         }
1212
1213         gio = g_io_channel_unix_new(system->contr_sock);
1214         system->contr_gsource_id =
1215                 g_io_add_watch(gio, G_IO_IN | G_IO_ERR | G_IO_HUP,
1216                                (GIOFunc) __process_contr_reply,
1217                                NULL);
1218         g_io_channel_unref(gio);
1219
1220         g_system = system;
1221
1222         /* create entry for STC_ALL_APP */
1223         __stc_monitor_add_application_by_app_id(STC_ALL_APP);
1224
1225         /* create entry for STC_BACKGROUND_APP_NAME */
1226         __stc_monitor_add_application_by_app_id(STC_BACKGROUND_APP_NAME);
1227
1228         /* create background cgroup */
1229         g_system->background_pids = NULL;
1230         create_net_background_cgroup(g_system->background_pids);
1231
1232         /* creating restriction rules tree */
1233         __update_contr_cb(NULL);
1234
1235         /* registering periodic kernel counters update callback */
1236         g_system->contr_timer_id = g_timeout_add_seconds(CONTR_TIMER_INTERVAL,
1237                                                          __update_contr_cb,
1238                                                          NULL);
1239         if (g_system->contr_timer_id == 0) {
1240                 STC_LOGE("Failed to register kernel counters update timer");
1241                 __close_contr_sock(g_system);
1242                 return STC_ERROR_FAIL;
1243         }
1244
1245         __fill_restritions_list();
1246
1247         return STC_ERROR_NONE;
1248 }
1249
1250 stc_error_e stc_monitor_deinit(void)
1251 {
1252         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1253
1254         /* close netlink socket for updating kernel counters */
1255         __close_contr_sock(g_system);
1256
1257         /* remove kernel counters update timer */
1258         if (g_system->contr_timer_id > 0) {
1259                 g_source_remove(g_system->contr_timer_id);
1260                 g_system->contr_timer_id = 0;
1261         }
1262
1263         /* free background pid list */
1264         g_slist_free(g_system->background_pids);
1265         g_system->background_pids = NULL;
1266
1267         /* destroy monitored application tree */
1268         g_tree_destroy(g_system->apps);
1269         g_system->apps = NULL;
1270
1271         /* destroy restriction rules tree */
1272         g_tree_destroy(g_system->rstns);
1273         g_system->rstns = NULL;
1274
1275         FREE(g_system);
1276
1277         return STC_ERROR_NONE;
1278 }
1279
1280 stc_error_e stc_monitor_application_add(const stc_app_key_s app_key,
1281                                         const stc_app_value_s app_value)
1282 {
1283         stc_error_e ret = STC_ERROR_NONE;
1284         stc_app_key_s *key;
1285         stc_app_value_s *value;
1286         stc_app_value_s *lookup;
1287
1288         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1289
1290         lookup = __application_lookup(g_system->apps, &app_key);
1291         if (lookup) {
1292                 STC_LOGD("app_key already present");
1293                 return STC_ERROR_NONE;
1294         }
1295
1296         key = MALLOC0(stc_app_key_s, 1);
1297         if (!key) {
1298                 STC_LOGE("key allocation failed");
1299                 return STC_ERROR_OUT_OF_MEMORY;
1300         }
1301
1302         value = MALLOC0(stc_app_value_s, 1);
1303         if (!value) {
1304                 STC_LOGE("value allocation failed");
1305                 FREE(key);
1306                 return STC_ERROR_OUT_OF_MEMORY;
1307         }
1308
1309         key->app_id = g_strdup(app_key.app_id);
1310         key->pkg_id = g_strdup(app_key.pkg_id);
1311
1312         value->type = app_value.type;
1313         value->counter.in_bytes = app_value.counter.in_bytes;
1314         value->counter.out_bytes = app_value.counter.out_bytes;
1315
1316         value->processes = g_tree_new_full(__processes_tree_key_compare, NULL,
1317                                            __processes_tree_key_free,
1318                                            __processes_tree_value_free);
1319
1320         /* create cgroup and update classid */
1321         value->classid = get_classid_by_app_id(app_key.app_id, TRUE);
1322
1323         g_tree_insert(g_system->apps, key, value);
1324
1325         /* add nfacct rule for this classid */
1326         __add_application_monitor(key, value, stc_get_default_connection());
1327         __add_rstns_for_application(app_key.app_id);
1328
1329         return ret;
1330 }
1331
1332 stc_error_e stc_monitor_process_add(const stc_app_key_s app_key,
1333                                     const stc_process_key_s proc_key,
1334                                     const stc_process_value_s proc_value)
1335 {
1336         stc_error_e ret = STC_ERROR_NONE;
1337         stc_app_value_s *app_lookup;
1338         stc_process_key_s *key;
1339         stc_process_value_s *value;
1340         stc_process_value_s *proc_lookup;
1341
1342         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1343
1344         app_lookup = __application_lookup(g_system->apps, &app_key);
1345         if (!app_lookup) {
1346                 STC_LOGD("app_key not found");
1347                 return STC_ERROR_FAIL;
1348         }
1349
1350         proc_lookup = __process_lookup(app_lookup->processes, &proc_key);
1351         if (proc_lookup) {
1352                 STC_LOGD("proc_key already present");
1353                 return STC_ERROR_NONE;
1354         }
1355
1356         key = MALLOC0(stc_process_key_s, 1);
1357         if (!key) {
1358                 STC_LOGE("key allocation failed");
1359                 return STC_ERROR_OUT_OF_MEMORY;
1360         }
1361
1362         value = MALLOC0(stc_process_value_s, 1);
1363         if (!value) {
1364                 STC_LOGE("value allocation failed");
1365                 FREE(key);
1366                 return STC_ERROR_OUT_OF_MEMORY;
1367         }
1368
1369         key->pid = proc_key.pid;
1370
1371         value->ground = proc_value.ground;
1372
1373         g_tree_insert(app_lookup->processes, key, value);
1374
1375         /* add pid to application cgroup */
1376         place_pids_to_net_cgroup(proc_key.pid, app_key.app_id);
1377
1378         /* add pid to background cgroup if gound state is background */
1379         if (proc_value.ground == STC_APP_STATE_BACKGROUND)
1380                 add_pid_to_background_cgroup(proc_key.pid);
1381
1382         return ret;
1383 }
1384
1385 stc_error_e stc_monitor_process_remove(pid_t pid)
1386 {
1387         stc_error_e ret = STC_ERROR_NONE;
1388         stc_process_key_s proc_key = {
1389                 .pid = pid
1390         };
1391
1392         remove_pid_context_s context = {
1393                 .app_key = NULL,
1394                 .proc_key = &proc_key,
1395                 .entry_removed = FALSE,
1396         };
1397
1398         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1399
1400         /* remove pid from background cgroup */
1401         remove_pid_from_background_cgroup(pid);
1402
1403         g_tree_foreach(g_system->apps, __apps_tree_foreach_remove_pid,
1404                        &context);
1405
1406         if (context.entry_removed)
1407                 __application_remove_if_empty(context.app_key);
1408
1409         return ret;
1410 }
1411
1412 stc_error_e stc_monitor_process_update_ground(const stc_app_key_s app_key,
1413                                               const stc_process_key_s proc_key,
1414                                               stc_app_state_e ground)
1415 {
1416         stc_error_e ret = STC_ERROR_NONE;
1417         stc_app_value_s *app_lookup;
1418         stc_process_value_s *proc_lookup;
1419
1420         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1421
1422         app_lookup = __application_lookup(g_system->apps, &app_key);
1423         if (!app_lookup) {
1424                 STC_LOGD("app_key not found");
1425                 return STC_ERROR_FAIL;
1426         }
1427
1428         proc_lookup = __process_lookup(app_lookup->processes, &proc_key);
1429         if (!proc_lookup) {
1430                 STC_LOGD("proc_key not found");
1431                 return STC_ERROR_FAIL;
1432         }
1433
1434         if (proc_lookup->ground != ground)
1435                 proc_lookup->ground = ground;
1436
1437         if (ground == STC_APP_STATE_BACKGROUND)
1438                 add_pid_to_background_cgroup(proc_key.pid);
1439         else
1440                 place_pids_to_net_cgroup(proc_key.pid, app_key.app_id);
1441
1442         return ret;
1443 }
1444
1445 void stc_monitor_update_rstn_by_default_connection(void *data)
1446 {
1447         static default_connection_s old_connection;
1448         default_connection_s *new_connection = (default_connection_s *)data;
1449
1450         if (old_connection.path != NULL) {
1451                 if (g_system->apps)
1452                         g_tree_foreach(g_system->apps,
1453                                        __remove_application_monitor,
1454                                        (gpointer)&old_connection);
1455
1456                 if (g_system->rstns)
1457                         g_tree_foreach(g_system->rstns,
1458                                        __remove_restriction,
1459                                        (gpointer)&old_connection);
1460         }
1461
1462         FREE(old_connection.path);
1463         FREE(old_connection.ifname);
1464         old_connection.type = 0;
1465         old_connection.roaming = 0;
1466
1467         if (new_connection != NULL && new_connection->path != NULL) {
1468                 if (g_system->apps)
1469                         g_tree_foreach(g_system->apps,
1470                                        __add_application_monitor,
1471                                        (gpointer)new_connection);
1472
1473                 if (g_system->rstns)
1474                         g_tree_foreach(g_system->rstns, __add_restriction,
1475                                        NULL);
1476
1477                 old_connection.path = g_strdup(new_connection->path);
1478                 old_connection.ifname = g_strdup(new_connection->ifname);
1479                 old_connection.type = new_connection->type;
1480                 old_connection.roaming = new_connection->roaming;
1481         }
1482 }
1483
1484 stc_error_e stc_monitor_rstns_tree_add(const table_restrictions_info *info)
1485 {
1486         stc_error_e ret;
1487
1488         stc_rstn_key_s key;
1489         stc_rstn_value_s value;
1490
1491         memset(&key, 0, sizeof(stc_rstn_key_s));
1492         memset(&value, 0, sizeof(stc_rstn_value_s));
1493
1494         key.app_id = g_strdup(info->app_id);
1495         key.ifname = g_strdup(info->ifname);
1496         key.imsi = g_strdup(info->imsi);
1497         key.iftype = info->iftype;
1498         key.roaming = info->roaming;
1499
1500         value.rst_state = info->rst_state;
1501         value.restriction_id = info->restriction_id;
1502
1503         if (value.rst_state != STC_RESTRICTION_EXCLUDED)
1504                 value.classid = get_classid_by_app_id(info->app_id ?
1505                                                       info->app_id :
1506                                                       STC_ALL_APP, TRUE);
1507         else
1508                 value.classid = STC_UNKNOWN_CLASSID;
1509
1510         value.limit.in_bytes = info->rcv_limit;
1511         value.limit.out_bytes = info->send_limit;
1512         value.warn_limit.in_bytes = info->rcv_warn_limit;
1513         value.warn_limit.out_bytes = info->send_warn_limit;
1514
1515         ret = __rstn_tree_add(&key, &value, TRUE);
1516
1517         FREE(key.app_id);
1518         FREE(key.ifname);
1519         FREE(key.imsi);
1520         return ret;
1521 }
1522
1523 stc_error_e stc_monitor_rstns_tree_remove(const table_restrictions_info *info)
1524 {
1525         stc_error_e ret;
1526
1527         stc_rstn_key_s key = {
1528                 .app_id = g_strdup(info->app_id),
1529                 .ifname = g_strdup(info->ifname),
1530                 .imsi = g_strdup(info->imsi),
1531                 .iftype = info->iftype,
1532                 .roaming = info->roaming,
1533         };
1534
1535         ret = __rstn_tree_remove(&key);
1536
1537         FREE(key.app_id);
1538         FREE(key.ifname);
1539         FREE(key.imsi);
1540         return ret;
1541 }
1542
1543 int stc_monitor_get_counter_socket(void)
1544 {
1545         return g_system->contr_sock;
1546 }