src/monitor/stc-monitor.c

   1 /*
   2  * Copyright (c) 2016 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include <linux/netlink.h>
  18
  19 #include "stc-default-connection.h"
  20 #include "helper-nl.h"
  21 #include "helper-nfacct-rule.h"
  22 #include "helper-net-cls.h"
  23 #include "helper-cgroup.h"
  24 #include "counter.h"
  25 #include "table-statistics.h"
  26 #include "table-counters.h"
  27 #include "stc-monitor.h"
  28 #include "stc-manager-plugin.h"
  29
  30 #define MAX_INT_LENGTH 128
  31
  32 typedef struct {
  33         stc_app_key_s *app_key;
  34         stc_process_key_s *proc_key;
  35         gboolean entry_removed;
  36 } remove_pid_context_s;
  37
  38 typedef struct {
  39         struct nfacct_rule *counter;
  40         int64_t bytes;
  41         gboolean data_limit_reached;
  42 } classid_bytes_context_s;
  43
  44 static stc_system_s *g_system = NULL;
  45
  46 static nfacct_rule_jump __get_jump_by_intend(struct nfacct_rule *counter)
  47 {
  48         if (counter->intend == NFACCT_WARN)
  49                 return NFACCT_JUMP_ACCEPT;
  50         else if (counter->intend == NFACCT_BLOCK)
  51                 return NFACCT_JUMP_REJECT;
  52
  53         return NFACCT_JUMP_UNKNOWN;
  54 }
  55
  56 static stc_error_e __add_iptables_in(struct nfacct_rule *counter)
  57 {
  58         return produce_net_rule(counter, 0, 0,
  59                 NFACCT_ACTION_INSERT, __get_jump_by_intend(counter),
  60                 NFACCT_COUNTER_IN);
  61 }
  62
  63 static stc_error_e __add_iptables_out(struct nfacct_rule *counter)
  64 {
  65         return produce_net_rule(counter, 0, 0,
  66                 NFACCT_ACTION_INSERT, __get_jump_by_intend(counter),
  67                 NFACCT_COUNTER_OUT);
  68 }
  69
  70 static stc_error_e __del_iptables_in(struct nfacct_rule *counter)
  71 {
  72         return produce_net_rule(counter, 0, 0,
  73                 NFACCT_ACTION_DELETE, __get_jump_by_intend(counter),
  74                 NFACCT_COUNTER_IN);
  75 }
  76
  77 static stc_error_e __del_iptables_out(struct nfacct_rule *counter)
  78 {
  79         return produce_net_rule(counter, 0, 0,
  80                 NFACCT_ACTION_DELETE, __get_jump_by_intend(counter),
  81                 NFACCT_COUNTER_OUT);
  82 }
  83
  84 static int __processes_tree_key_compare(gconstpointer a, gconstpointer b,
  85                                         gpointer UNUSED user_data)
  86 {
  87         stc_process_key_s *key_a = (stc_process_key_s *)a;
  88         stc_process_key_s *key_b = (stc_process_key_s *)b;
  89
  90         return key_a->pid - key_b->pid;
  91 }
  92
  93 static void __processes_tree_value_free(gpointer data)
  94 {
  95         stc_process_value_s *value = (stc_process_value_s *)data;
  96
  97         FREE(value);
  98 }
  99
 100 static void __processes_tree_key_free(gpointer data)
 101 {
 102         stc_process_key_s *key = (stc_process_key_s *)data;
 103
 104         FREE(key);
 105 }
 106
 107 static int __apps_tree_key_compare(gconstpointer a, gconstpointer b,
 108                                    gpointer UNUSED user_data)
 109 {
 110         stc_app_key_s *key_a = (stc_app_key_s *)a;
 111         stc_app_key_s *key_b = (stc_app_key_s *)b;
 112         gint ret;
 113
 114         ret = g_strcmp0(key_a->pkg_id, key_b->pkg_id);
 115         if (ret)
 116                 return ret;
 117
 118         return g_strcmp0(key_a->app_id, key_b->app_id);
 119 }
 120
 121 static void __apps_tree_value_free(gpointer data)
 122 {
 123         stc_app_value_s *value = (stc_app_value_s *)data;
 124
 125         g_tree_destroy(value->processes);
 126         value->processes = NULL;
 127
 128         FREE(value);
 129 }
 130
 131 static void __apps_tree_key_free(gpointer data)
 132 {
 133         stc_app_key_s *key = (stc_app_key_s *)data;
 134
 135         g_free(key->pkg_id);
 136         g_free(key->app_id);
 137         FREE(key);
 138 }
 139
 140 static int __rstns_tree_key_compare(gconstpointer a, gconstpointer b,
 141                                     gpointer UNUSED user_data)
 142 {
 143         stc_rstn_key_s *key_a = (stc_rstn_key_s *)a;
 144         stc_rstn_key_s *key_b = (stc_rstn_key_s *)b;
 145         int ret;
 146
 147         ret = g_strcmp0(key_a->app_id, key_b->app_id);
 148         if (ret != 0)
 149                 return ret;
 150
 151         ret = g_strcmp0(key_a->ifname, key_b->ifname);
 152         if (ret != 0)
 153                 return ret;
 154
 155         ret = g_strcmp0(key_a->imsi, key_b->imsi);
 156         if (ret != 0)
 157                 return ret;
 158
 159         ret = key_a->iftype - key_b->iftype;
 160         if (ret != 0)
 161                 return ret;
 162
 163         return 0;
 164 }
 165
 166 static void __rstns_tree_value_free(gpointer data)
 167 {
 168         stc_rstn_value_s *value = (stc_rstn_value_s *)data;
 169
 170         FREE(value);
 171 }
 172
 173 static void __rstns_tree_key_free(gpointer data)
 174 {
 175         stc_rstn_key_s *key = (stc_rstn_key_s *)data;
 176
 177         FREE(key->app_id);
 178         FREE(key->ifname);
 179         FREE(key->imsi);
 180         FREE(key);
 181 }
 182
 183 static gboolean __processes_tree_foreach_print(gpointer key, gpointer value,
 184                                                gpointer data)
 185 {
 186         stc_process_key_s *proc_key = (stc_process_key_s *)key;
 187         stc_process_value_s *proc_value = (stc_process_value_s *)value;
 188
 189         STC_LOGD("Process entry => PID [%d], Ground state [%d]",
 190                  proc_key->pid, proc_value->ground);
 191         return FALSE;
 192 }
 193
 194 static void __processes_tree_printall(GTree *processes)
 195 {
 196         g_tree_foreach(processes, __processes_tree_foreach_print, NULL);
 197 }
 198
 199 static gboolean __apps_tree_foreach_print(gpointer key, gpointer value,
 200                                           gpointer data)
 201 {
 202         stc_app_key_s *app_key = (stc_app_key_s *)key;
 203         stc_app_value_s *app_value = (stc_app_value_s *)value;
 204
 205         STC_LOGD("Application info => Pkg ID [%s], App ID [%s],"
 206                  " Type [%d], classid [%d],"
 207                  " counter [ in (%lld), out (%lld)]",
 208                  app_key->pkg_id, app_key->app_id,
 209                  app_value->type, app_value->classid,
 210                  app_value->data_usage.in_bytes, app_value->data_usage.out_bytes);
 211
 212         __processes_tree_printall(app_value->processes);
 213         return FALSE;
 214 }
 215
 216 #if 0
 217 static void __apps_tree_printall(void)
 218 {
 219         g_tree_foreach(g_system->apps, __apps_tree_foreach_print, NULL);
 220 }
 221 #endif
 222
 223 static gboolean __apps_tree_foreach_remove_pid(gpointer key, gpointer value,
 224                                                gpointer data)
 225 {
 226         remove_pid_context_s *context = (remove_pid_context_s *)data;
 227         stc_app_value_s *app_value = (stc_app_value_s *)value;
 228
 229         if (!g_tree_remove(app_value->processes, context->proc_key)) {
 230                 STC_LOGD("key not found");
 231                 return FALSE;
 232         }
 233
 234         context->entry_removed = TRUE;
 235         context->app_key = (stc_app_key_s *)key;
 236
 237         return TRUE;
 238 }
 239
 240 static stc_app_value_s * __application_lookup(GTree *apps,
 241                                               const stc_app_key_s *key)
 242 {
 243         stc_app_value_s *lookup;
 244
 245         ret_value_msg_if(apps == NULL, NULL, "apps is null!");
 246
 247         lookup = g_tree_lookup(apps, key);
 248
 249         return lookup;
 250 }
 251
 252 static stc_process_value_s * __process_lookup(GTree *processes,
 253                                               const stc_process_key_s *key)
 254 {
 255         stc_process_value_s *lookup;
 256
 257         ret_value_msg_if(processes == NULL, NULL, "processes is null!");
 258
 259         lookup = g_tree_lookup(processes, key);
 260
 261         return lookup;
 262 }
 263
 264 static gboolean __processes_tree_check_empty(gpointer key, gpointer value,
 265                                              gpointer data)
 266 {
 267         guint *pid_count = (guint *)data;
 268         (*pid_count)++;
 269         return TRUE;
 270 }
 271
 272 static gboolean __add_application_monitor(gpointer key, gpointer value,
 273                                           gpointer data)
 274 {
 275         stc_app_value_s *app_value = (stc_app_value_s *)value;
 276         default_connection_s *connection = (default_connection_s *)data;
 277         stc_s *stc = stc_get_manager();
 278
 279         if (stc && connection && connection->ifname) {
 280                 struct nfacct_rule counter;
 281
 282                 if (!stc->carg) {
 283                         stc->carg = MALLOC0(counter_arg_s, 1);
 284                         stc->carg->sock = stc_monitor_get_counter_socket();
 285                 }
 286
 287                 memset(&counter, 0, sizeof(struct nfacct_rule));
 288
 289                 counter.carg = stc->carg;
 290                 counter.classid = app_value->classid;
 291                 counter.intend = NFACCT_COUNTER;
 292                 g_strlcpy(counter.ifname, connection->ifname, MAX_IFACE_LENGTH);
 293
 294                 __add_iptables_in(&counter);
 295                 __add_iptables_out(&counter);
 296         }
 297
 298         return FALSE;
 299 }
 300
 301 static gboolean __remove_application_monitor(gpointer key, gpointer value,
 302                                              gpointer data)
 303 {
 304         stc_app_value_s *app_value = (stc_app_value_s *)value;
 305         default_connection_s *connection = (default_connection_s *)data;
 306         stc_s *stc = stc_get_manager();
 307
 308         if (stc && connection && connection->ifname) {
 309                 struct nfacct_rule counter;
 310
 311                 if (!stc->carg) {
 312                         stc->carg = MALLOC0(counter_arg_s, 1);
 313                         stc->carg->sock = stc_monitor_get_counter_socket();
 314                 }
 315
 316                 memset(&counter, 0, sizeof(struct nfacct_rule));
 317
 318                 counter.carg = stc->carg;
 319                 counter.classid = app_value->classid;
 320                 counter.intend = NFACCT_COUNTER;
 321                 g_strlcpy(counter.ifname, connection->ifname, MAX_IFACE_LENGTH);
 322
 323                 __del_iptables_in(&counter);
 324                 __del_iptables_out(&counter);
 325         }
 326
 327         return FALSE;
 328 }
 329
 330 static void __print_rstn(stc_rstn_key_s *rstn_key, stc_rstn_value_s *rstn_value)
 331 {
 332         STC_LOGI("rstn info => rstn_id [%llu], "
 333                  "app_id [%s], classid [%lu], ifname [%s], "
 334                  "iftype [%d], rst_state [%d], "
 335                  "limit [ (%lld) bytes], "
 336                  "warn_limit [ (%lld) bytes], "
 337                  "counter [ (%lld) bytes], "
 338                  "roaming [%d], imsi [%s]",
 339                  rstn_value->restriction_id,
 340                  rstn_key->app_id, rstn_value->classid , rstn_key->ifname,
 341                  rstn_key->iftype, rstn_value->rst_state,
 342                  rstn_value->data_limit,
 343                  rstn_value->data_warn_limit,
 344                  rstn_value->data_counter,
 345                  rstn_key->roaming, rstn_key->imsi);
 346 }
 347
 348 static void __process_restriction(enum traffic_restriction_type rst_type,
 349                                   stc_rstn_key_s *rstn_key,
 350                                   stc_rstn_value_s *rstn_value, void *data)
 351 {
 352         int64_t effective_data_limit, effective_data_warn_limit;
 353         default_connection_s *old_connection = (default_connection_s *)data;
 354         default_connection_s *connection = NULL;
 355
 356         if (old_connection != NULL)
 357                 connection = old_connection;
 358         else
 359                 connection = stc_get_default_connection();
 360
 361         /* no default ifname */
 362         if (connection->ifname == NULL)
 363                 return;
 364
 365         /* rstn not applicable for this interface */
 366         if (rstn_key->ifname != NULL && g_strcmp0("", rstn_key->ifname) != 0 &&
 367             g_strcmp0(connection->ifname, rstn_key->ifname) != 0)
 368                 return;
 369
 370         /* classid is invalid */
 371         if (rstn_value->classid == STC_UNKNOWN_CLASSID)
 372                 return;
 373
 374         effective_data_limit = rstn_value->data_limit;
 375         effective_data_warn_limit = rstn_value->data_warn_limit;
 376
 377         if (rst_type == RST_SET) {
 378                 /* TODO: Change this to runtime memory */
 379                 table_counters_info info;
 380
 381                 memset(&info, 0, sizeof(table_counters_info));
 382                 table_counters_get(rstn_value->restriction_id, &info);
 383
 384                 effective_data_limit -= info.data_counter;
 385                 effective_data_warn_limit -= info.data_counter;
 386
 387                 if (effective_data_limit < 0) {
 388                         effective_data_limit = 0;
 389                         rstn_value->data_limit_reached = TRUE;
 390                 }
 391
 392                 if (effective_data_warn_limit < 0)
 393                         effective_data_warn_limit = 0;
 394
 395                 STC_LOGD("datausage [%lld] bytes", info.data_counter);
 396         }
 397
 398         STC_LOGD("rstn_id [%llu], effective_data_limit [%lld] bytes, "
 399                  "effective_data_warn_limit [%lld] bytes",
 400                  rstn_value->restriction_id, effective_data_limit,
 401                  effective_data_warn_limit);
 402
 403         switch (rst_type) {
 404         case RST_SET:
 405                 if (effective_data_limit <= 0) {
 406                         char *default_ifname = stc_default_connection_get_ifname();
 407                         struct nfacct_rule counter;
 408                         stc_s *stc = stc_get_manager();
 409
 410                         if (!stc->carg) {
 411                                 stc->carg = MALLOC0(counter_arg_s, 1);
 412                                 stc->carg->sock =
 413                                         stc_monitor_get_counter_socket();
 414                         }
 415
 416                         counter.carg = stc->carg;
 417                         counter.classid = rstn_value->classid;
 418                         counter.intend = NFACCT_BLOCK;
 419                         counter.iftype = STC_IFACE_UNKNOWN;
 420                         g_strlcpy(counter.ifname, default_ifname,
 421                                   MAX_IFACE_LENGTH);
 422
 423                         generate_counter_name(&counter);
 424                         g_free(default_ifname);
 425
 426                         /* iptables rule */
 427                         __add_iptables_in(&counter);
 428                         __add_iptables_out(&counter);
 429                 }
 430
 431                 rstn_value->rst_state = STC_RESTRICTION_ACTIVATED;
 432                 rstn_value->data_limit_reached = FALSE;
 433                 break;
 434         case RST_EXCLUDE:
 435                 ;//Do Nothing
 436                 break;
 437         case RST_UNSET:
 438                 {
 439                         char *default_ifname = stc_default_connection_get_ifname();
 440                         struct nfacct_rule counter;
 441                         stc_s *stc = stc_get_manager();
 442
 443                         if (!stc->carg) {
 444                                 stc->carg = MALLOC0(counter_arg_s, 1);
 445                                 stc->carg->sock =
 446                                         stc_monitor_get_counter_socket();
 447                         }
 448
 449                         counter.carg = stc->carg;
 450                         counter.classid = rstn_value->classid;
 451                         counter.intend = NFACCT_BLOCK;
 452                         counter.iftype = STC_IFACE_UNKNOWN;
 453                         g_strlcpy(counter.ifname, default_ifname,
 454                                   MAX_IFACE_LENGTH);
 455
 456                         generate_counter_name(&counter);
 457                         g_free(default_ifname);
 458
 459                         /* iptables rule */
 460                         __del_iptables_in(&counter);
 461                         __del_iptables_out(&counter);
 462
 463                         rstn_value->rst_state = STC_RESTRICTION_REMOVED;
 464                         rstn_value->data_limit_reached = FALSE;
 465                 }
 466                 break;
 467         default:
 468                 ;//Do Nothing
 469         }
 470 }
 471
 472 static gboolean __remove_rstns_foreach_application(gpointer key,
 473                                                    gpointer value,
 474                                                    gpointer data)
 475 {
 476         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 477         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 478         gchar *app_id = (gchar *)data;
 479
 480         /* rstn rule is not for applications */
 481         if (rstn_key->app_id == NULL)
 482                 goto out;
 483
 484         /* rstn rule is not for this application */
 485         if (g_strcmp0(rstn_key->app_id, app_id) != 0)
 486                 goto out;
 487
 488         /* rstn rule is already removed */
 489         if (rstn_value->rst_state == STC_RESTRICTION_REMOVED)
 490                 goto out;
 491
 492         /* remove restriction from system */
 493         __process_restriction(RST_UNSET, rstn_key, rstn_value, data);
 494
 495         __print_rstn(rstn_key, rstn_value);
 496 out:
 497         return FALSE;
 498 }
 499
 500 static void __remove_rstns_for_application(gchar *app_id)
 501 {
 502         g_tree_foreach(g_system->rstns, __remove_rstns_foreach_application,
 503                        app_id);
 504 }
 505
 506 static stc_error_e __application_remove_if_empty(const stc_app_key_s *app_key)
 507 {
 508         stc_error_e ret = STC_ERROR_NONE;
 509         guint pid_count = 0;
 510         stc_app_value_s *lookup;
 511
 512         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
 513
 514         lookup = __application_lookup(g_system->apps, app_key);
 515         if (!lookup) {
 516                 STC_LOGE("app_key not found");
 517                 return STC_ERROR_NO_DATA;
 518         }
 519
 520         g_tree_foreach(lookup->processes, __processes_tree_check_empty,
 521                        &pid_count);
 522
 523         if (!pid_count) {
 524                 /* remove nfacct rule for this classid */
 525                 __remove_application_monitor((gpointer) app_key, lookup,
 526                                              stc_get_default_connection());
 527                 __remove_rstns_for_application(app_key->app_id);
 528         }
 529
 530         if (!g_tree_remove(g_system->apps, app_key)) {
 531                 ret = STC_ERROR_NO_DATA;
 532                 STC_LOGE("key not found");
 533         }
 534
 535         return ret;
 536 }
 537
 538 static stc_error_e __close_contr_sock(stc_system_s *system)
 539 {
 540         ret_value_msg_if(system == NULL, STC_ERROR_INVALID_PARAMETER, "invalid parameter");
 541
 542         /* close netlink socket for updating kernel counters */
 543         if (g_system->contr_sock != -1) {
 544                 close(g_system->contr_sock);
 545                 g_system->contr_sock = -1;
 546         }
 547
 548         if (g_system->contr_gsource_id != 0) {
 549                 g_source_remove(g_system->contr_gsource_id);
 550                 g_system->contr_gsource_id = 0;
 551         }
 552
 553         return STC_ERROR_NONE;
 554 }
 555
 556 static gboolean __rstn_counter_update_foreach_classid(gpointer key,
 557                                                       gpointer value,
 558                                                       gpointer data)
 559 {
 560         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 561         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 562         classid_bytes_context_s *context = (classid_bytes_context_s *)data;
 563
 564         if (context->counter->intend != NFACCT_COUNTER)
 565                 goto try_next_callback;
 566
 567         if (rstn_value->classid != context->counter->classid)
 568                 goto try_next_callback;
 569
 570         if (rstn_value->data_limit_reached == TRUE) {
 571                 context->data_limit_reached = TRUE;
 572                 goto try_next_callback;
 573         }
 574
 575         switch (context->counter->iotype) {
 576         case NFACCT_COUNTER_IN:
 577         case NFACCT_COUNTER_OUT:
 578                 rstn_value->data_counter += context->bytes;
 579
 580                 if (rstn_value->data_counter >= rstn_value->data_warn_limit &&
 581                     rstn_value->warn_limit_crossed_notified == FALSE) {
 582
 583                         gboolean rv = FALSE;
 584                         char iftype[MAX_INT_LENGTH];
 585                         char byte[MAX_INT_LENGTH];
 586                         stc_s *stc = (stc_s *)stc_get_manager();
 587                         ret_value_msg_if(stc == NULL, FALSE, "failed to get stc data");
 588
 589                         /* emit signal */
 590                         rv = stc_manager_dbus_emit_signal(stc->connection,
 591                                                           STC_DBUS_SERVICE_RESTRICTION_PATH,
 592                                                           STC_DBUS_INTERFACE_RESTRICTION,
 593                                                           "WarnThresholdCrossed",
 594                                                           g_variant_new("(s)", rstn_key->app_id));
 595                         if (rv == TRUE)
 596                                 rstn_value->warn_limit_crossed_notified = TRUE;
 597
 598                         snprintf(iftype, MAX_INT_LENGTH, "%d", rstn_key->iftype);
 599                         snprintf(byte, MAX_INT_LENGTH, "%lld", rstn_value->data_warn_limit);
 600                         stc_send_warn_message_to_net_popup("warn threshold crossed",
 601                                                            "warning_noti",
 602                                                            rstn_key->app_id,
 603                                                            iftype, byte);
 604                 }
 605
 606                 if (rstn_value->data_counter >= rstn_value->data_limit &&
 607                     rstn_value->rstn_limit_crossed_notified == FALSE) {
 608
 609                         gboolean rv = FALSE;
 610                         char iftype[MAX_INT_LENGTH];
 611                         char byte[MAX_INT_LENGTH];
 612                         stc_s *stc = (stc_s *)stc_get_manager();
 613                         ret_value_msg_if(stc == NULL, FALSE, "failed to get stc data");
 614
 615                         /* block immediately */
 616                         context->counter->intend = NFACCT_BLOCK;
 617                         __del_iptables_in(context->counter);
 618                         __del_iptables_out(context->counter);
 619                         __add_iptables_in(context->counter);
 620                         __add_iptables_out(context->counter);
 621                         context->counter->intend = NFACCT_COUNTER;
 622
 623                         rstn_value->data_limit_reached = TRUE;
 624
 625                         /* emit signal */
 626                         rv = stc_manager_dbus_emit_signal(stc->connection,
 627                                                           STC_DBUS_SERVICE_RESTRICTION_PATH,
 628                                                           STC_DBUS_INTERFACE_RESTRICTION,
 629                                                           "RestrictionThresholdCrossed",
 630                                                           g_variant_new("(s)", rstn_key->app_id));
 631                         if (rv == TRUE)
 632                                 rstn_value->rstn_limit_crossed_notified = TRUE;
 633
 634                         snprintf(iftype, MAX_INT_LENGTH, "%d", rstn_key->iftype);
 635                         snprintf(byte, MAX_INT_LENGTH, "%lld", rstn_value->data_limit);
 636                         stc_send_restriction_message_to_net_popup("restriction threshold crossed",
 637                                                                   "restriction_noti", rstn_key->app_id,
 638                                                                   iftype, byte);
 639                 }
 640
 641                 g_system->rstns_tree_updated = TRUE;
 642                 __print_rstn(rstn_key, rstn_value);
 643                 break;
 644         default:
 645                 STC_LOGE("unknown iotype");
 646         }
 647
 648
 649 try_next_callback:
 650         return FALSE;
 651 }
 652
 653 static gboolean __update_app_statistics(gpointer key, gpointer value,
 654                                         gpointer data)
 655 {
 656         stc_app_key_s *app_key = (stc_app_key_s *)key;
 657         stc_app_value_s *app_value = (stc_app_value_s *)value;
 658         time_t *touch_time = (time_t *)data;
 659         stc_db_classid_iftype_key stat_key;
 660         stc_db_app_stats stat;
 661         char *default_ifname = stc_default_connection_get_ifname();
 662
 663         memset(&stat_key, 0, sizeof(stc_db_classid_iftype_key));
 664         memset(&stat, 0 , sizeof(stc_db_app_stats));
 665
 666         stat_key.classid = app_value->classid;
 667         stat_key.iftype = stc_default_connection_get_type();
 668         if (STC_IFACE_DATACALL == stat_key.iftype)
 669                 stat_key.imsi = g_strdup("unknown");
 670         else
 671                 stat_key.imsi = g_strdup("noneimsi");
 672         g_strlcpy(stat_key.ifname, default_ifname, MAX_IFACE_LENGTH);
 673
 674         stat.app_id = g_strdup(app_key->app_id);
 675         stat.snd_count = app_value->counter.out_bytes;
 676         stat.rcv_count = app_value->counter.in_bytes;
 677         stat.is_roaming = stc_default_connection_get_roaming();
 678         stat.ground = STC_APP_STATE_UNKNOWN;
 679
 680         table_statistics_insert(&stat_key, &stat, *touch_time);
 681
 682         app_value->counter.out_bytes = 0;
 683         app_value->counter.in_bytes = 0;
 684
 685         FREE(stat.app_id);
 686         FREE(stat_key.imsi);
 687         FREE(default_ifname);
 688
 689         return FALSE;
 690 }
 691
 692 static gboolean __flush_apps_stats_to_database(gpointer user_data)
 693 {
 694         time_t current_time = time(0);
 695
 696         if (g_system->apps_tree_updated == FALSE)
 697                 return G_SOURCE_REMOVE;
 698
 699         g_system->apps_tree_updated = FALSE;
 700
 701         if (g_system->apps)
 702                 g_tree_foreach(g_system->apps,
 703                                __update_app_statistics,
 704                                &current_time);
 705
 706         STC_LOGI("Flushed app stats to database");
 707         return G_SOURCE_REMOVE;
 708 }
 709
 710 static gboolean __update_counter_statistics(gpointer key, gpointer value,
 711                                             gpointer data)
 712 {
 713         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 714         table_counters_info info = {
 715                 .restriction_id = rstn_value->restriction_id,
 716                 .data_counter = rstn_value->data_counter
 717         };
 718
 719         table_counters_update_counters(&info);
 720
 721         return FALSE;
 722 }
 723
 724 static gboolean __flush_rstns_counter_to_database(gpointer user_data)
 725 {
 726         time_t current_time = time(0);
 727
 728         if (g_system->rstns_tree_updated == FALSE)
 729                 return G_SOURCE_REMOVE;
 730
 731         g_system->rstns_tree_updated = FALSE;
 732
 733         if (g_system->rstns)
 734                 g_tree_foreach(g_system->rstns,
 735                                __update_counter_statistics,
 736                                &current_time);
 737
 738         STC_LOGI("Flushed rstns counters to database");
 739         return G_SOURCE_REMOVE;
 740 }
 741
 742 static gboolean __apps_counter_update_foreach_classid(gpointer key,
 743                                                       gpointer value,
 744                                                       gpointer data)
 745 {
 746         stc_app_key_s *app_key = (stc_app_key_s *)key;
 747         stc_app_value_s *app_value = (stc_app_value_s *)value;
 748         classid_bytes_context_s *context = (classid_bytes_context_s *)data;
 749
 750         if (context->counter->intend != NFACCT_COUNTER)
 751                 goto try_next_callback;
 752
 753         if (app_value->classid != context->counter->classid)
 754                 goto try_next_callback;
 755
 756         switch (context->counter->iotype) {
 757         case NFACCT_COUNTER_IN:
 758                 app_value->data_usage.in_bytes += context->bytes;
 759                 app_value->counter.in_bytes = context->bytes;
 760                 g_system->apps_tree_updated = TRUE;
 761
 762                 __apps_tree_foreach_print(app_key, app_value, NULL);
 763                 break;
 764         case NFACCT_COUNTER_OUT:
 765                 app_value->data_usage.out_bytes += context->bytes;
 766                 app_value->counter.out_bytes = context->bytes;
 767                 g_system->apps_tree_updated = TRUE;
 768
 769                 __apps_tree_foreach_print(app_key, app_value, NULL);
 770                 break;
 771         default:
 772                 STC_LOGE("unknown iotype");
 773         }
 774
 775 try_next_callback:
 776         return FALSE;
 777 }
 778
 779 static void __fill_nfacct_result(char *cnt_name, int64_t bytes,
 780                                  struct counter_arg *carg)
 781 {
 782         struct nfacct_rule counter = {
 783                 .carg = carg,
 784                 .name = {0},
 785                 .ifname = {0},
 786                 0
 787         };
 788
 789         classid_bytes_context_s context = {
 790                 .counter = &counter,
 791                 .bytes = bytes,
 792                 .data_limit_reached = FALSE,
 793         };
 794
 795         STC_LOGD("cnt_name %s", cnt_name);
 796
 797         if (!recreate_counter_by_name(cnt_name, &counter)) {
 798                 STC_LOGE("Can't parse counter name %s", cnt_name);
 799                 return;
 800         }
 801
 802         STC_LOGI("classid %lu, iftype %u, iotype %d, intend %d, ifname %s, bytes %lld",
 803                  context.counter->classid, context.counter->iftype,
 804                  context.counter->iotype, context.counter->intend,
 805                  context.counter->ifname, context.bytes);
 806
 807         if (g_system->rstns)
 808                 g_tree_foreach(g_system->rstns,
 809                                __rstn_counter_update_foreach_classid,
 810                                &context);
 811
 812         if (g_system->apps)
 813                 g_tree_foreach(g_system->apps,
 814                                __apps_counter_update_foreach_classid,
 815                                &context);
 816 }
 817
 818 static int __fill_counters(struct rtattr *attr_list[__NFACCT_MAX],
 819                            void *user_data)
 820 {
 821         struct counter_arg *carg = user_data;
 822         char *cnt_name = (char *)RTA_DATA(attr_list[NFACCT_NAME]);
 823         if (carg->initiate) {
 824                 /**
 825                  * TODO: this will be used when daemon starts to update existing
 826                  * counter data if present.
 827                  *
 828                  populate_counters(cnt_name, carg);
 829                  */
 830         } else {
 831                 int64_t *bytes_p =
 832                         (int64_t *)RTA_DATA(attr_list[NFACCT_BYTES]);
 833                 int bytes = be64toh(*bytes_p);
 834                 if (bytes) {
 835                         ++carg->serialized_counters;
 836                         __fill_nfacct_result(cnt_name, bytes, carg);
 837                 }
 838         }
 839
 840         return 0;
 841 }
 842
 843 static int __post_fill_counters(void *user_data)
 844 {
 845         struct counter_arg *carg = user_data;
 846
 847         if (carg->initiate)
 848                 carg->initiate = 0;
 849
 850         return 0;
 851 }
 852
 853 static void __process_network_counter(struct genl *ans,
 854                                       struct counter_arg *carg)
 855 {
 856         struct netlink_serialization_params ser_params = {
 857                 .carg = carg,
 858                 .ans = ans,
 859                 .eval_attr = __fill_counters,
 860                 .post_eval_attr = __post_fill_counters,
 861         };
 862
 863         netlink_serialization_command *netlink =
 864                 netlink_create_command(&ser_params);
 865         if (!netlink) {
 866                 STC_LOGE("Can not create command");
 867                 return;
 868         }
 869
 870         netlink->deserialize_answer(&(netlink->params));
 871 }
 872
 873 static gboolean __process_contr_reply(GIOChannel *source,
 874                                       GIOCondition condition,
 875                                       gpointer user_data)
 876 {
 877         int sock = g_io_channel_unix_get_fd(source);
 878         struct genl ans;
 879         int ret;
 880         stc_s *stc = stc_get_manager();
 881
 882         if ((condition & G_IO_ERR) ||
 883             (condition & G_IO_HUP) ||
 884             (condition & G_IO_NVAL)) {
 885                 /* G_IO_ERR/G_IO_HUP/G_IO_NVAL received */
 886
 887                 __close_contr_sock(g_system);
 888                 return FALSE;
 889         }
 890
 891         if (stc == NULL) {
 892                 STC_LOGE("Can't get stc data");
 893                 goto out;
 894         }
 895
 896         ret = read_netlink(sock,
 897                            &ans, sizeof(struct genl));
 898         /* STC_LOGD("Counter data received ret [%d]", ret); */
 899         if (ret == 0)
 900                 goto out;
 901
 902         stc->carg->ans_len = ret;
 903         __process_network_counter(&ans, stc->carg);
 904
 905         g_idle_add(__flush_apps_stats_to_database, NULL);
 906         g_idle_add(__flush_rstns_counter_to_database, NULL);
 907 out:
 908         return TRUE;
 909 }
 910
 911 static gboolean __update_contr_cb(void *user_data)
 912 {
 913         /* Here we just sent command, answer we receive in another callback */
 914         stc_s *stc = stc_get_manager();
 915         ret_value_msg_if(stc == NULL, STC_ERROR_FAIL, "Can't get stc data");
 916         if (!stc->carg) {
 917                 stc->carg = MALLOC0(counter_arg_s, 1);
 918                 stc->carg->sock = stc_monitor_get_counter_socket();
 919         }
 920
 921         /* STC_LOGD("Get all counters"); */
 922         nfacct_send_get_all(stc->carg);
 923
 924         /* we need to continue the timer */
 925         return TRUE;
 926 }
 927 #if 0
 928 static gboolean __rstn_tree_foreach_print(gpointer key, gpointer value,
 929                                           gpointer data)
 930 {
 931         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 932         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 933
 934         __print_rstn(rstn_key, rstn_value);
 935         return FALSE;
 936 }
 937
 938 static void __rstn_tree_printall(void)
 939 {
 940         g_tree_foreach(g_system->rstns, __rstn_tree_foreach_print, NULL);
 941 }
 942 #endif
 943 static stc_rstn_value_s * __rstn_lookup(GTree *rstns_tree,
 944                                         const stc_rstn_key_s *key)
 945 {
 946         stc_rstn_value_s *lookup;
 947
 948         ret_value_msg_if(rstns_tree == NULL, NULL, "rstns_tree is null!");
 949
 950         lookup = g_tree_lookup(rstns_tree, key);
 951
 952         return lookup;
 953 }
 954
 955 static gboolean __remove_restriction(gpointer key, gpointer value,
 956                                      gpointer data)
 957 {
 958         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 959         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 960
 961         /* rstn rule is already removed */
 962         if (rstn_value->rst_state == STC_RESTRICTION_REMOVED)
 963                 return FALSE;
 964
 965         __process_restriction(RST_UNSET, rstn_key, rstn_value, data);
 966         __print_rstn(rstn_key, rstn_value);
 967         return FALSE;
 968 }
 969
 970 static gboolean __add_restriction_debug(gpointer key, gpointer value,
 971                                         gpointer data)
 972 {
 973         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 974         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 975
 976         /* rstn rule is activated */
 977         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
 978                 return FALSE;
 979
 980         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
 981                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
 982         else
 983                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
 984
 985         __print_rstn(rstn_key, rstn_value);
 986
 987         return FALSE;
 988 }
 989
 990 static gboolean __add_restriction(gpointer key, gpointer value, gpointer data)
 991 {
 992         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 993         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 994
 995         /* rstn rule is activated */
 996         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
 997                 return FALSE;
 998
 999         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1000                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1001         else
1002                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1003
1004         return FALSE;
1005 }
1006
1007 static stc_error_e __rstn_tree_remove(stc_rstn_key_s *key)
1008 {
1009         stc_rstn_value_s *lookup_value;
1010
1011         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1012
1013         lookup_value = __rstn_lookup(g_system->rstns, key);
1014         if (!lookup_value) {
1015                 STC_LOGE("key not found");
1016                 return STC_ERROR_NO_DATA;
1017         }
1018
1019         __remove_restriction(key, lookup_value, NULL);
1020
1021         /* remove counter also */
1022         table_counters_delete(lookup_value->restriction_id);
1023
1024         if (!g_tree_remove(g_system->rstns, key)) {
1025                 STC_LOGD("key not found");
1026                 return STC_ERROR_NO_DATA;
1027         }
1028
1029         return STC_ERROR_NONE;
1030 }
1031
1032 static stc_error_e __rstn_tree_add(stc_rstn_key_s *key,
1033                                    stc_rstn_value_s *value, gboolean debug)
1034 {
1035         stc_rstn_value_s *rstn_value;
1036
1037         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1038
1039         rstn_value = __rstn_lookup(g_system->rstns, key);
1040         if (!rstn_value) {
1041                 stc_rstn_key_s *rstn_key = MALLOC0(stc_rstn_key_s, 1);
1042                 if (!rstn_key) {
1043                         STC_LOGE("rstn_key allocation failed");
1044                         return STC_ERROR_OUT_OF_MEMORY;
1045                 }
1046
1047                 rstn_value = MALLOC0(stc_rstn_value_s, 1);
1048                 if (!rstn_value) {
1049                         STC_LOGE("rstn_value allocation failed");
1050                         FREE(rstn_key);
1051                         return STC_ERROR_OUT_OF_MEMORY;
1052                 }
1053
1054                 rstn_key->app_id = g_strdup(key->app_id);
1055                 rstn_key->ifname = g_strdup(key->ifname);
1056                 rstn_key->imsi = g_strdup(key->imsi);
1057                 rstn_key->iftype = key->iftype;
1058                 rstn_key->roaming = key->roaming;
1059
1060                 g_tree_insert(g_system->rstns, rstn_key, rstn_value);
1061         }
1062
1063         rstn_value->restriction_id = value->restriction_id;
1064         rstn_value->rst_state = value->rst_state;
1065         rstn_value->classid = value->classid;
1066         rstn_value->data_limit = value->data_limit;
1067         rstn_value->data_warn_limit = value->data_warn_limit;
1068         rstn_value->data_counter = 0;
1069         rstn_value->warn_limit_crossed_notified = FALSE;
1070         rstn_value->rstn_limit_crossed_notified = FALSE;
1071
1072         if (debug == TRUE)
1073                 __add_restriction_debug(key, rstn_value, NULL);
1074         else
1075                 __add_restriction(key, rstn_value, NULL);
1076
1077         return STC_ERROR_NONE;
1078 }
1079
1080 static stc_cb_ret_e __insert_restriction_cb(const table_restrictions_info *info,
1081                                             void *user_data)
1082 {
1083         stc_cb_ret_e ret = STC_CONTINUE;
1084
1085         stc_rstn_key_s key;
1086         stc_rstn_value_s value;
1087
1088         memset(&key, 0, sizeof(stc_rstn_key_s));
1089         memset(&value, 0, sizeof(stc_rstn_value_s));
1090
1091         key.app_id = g_strdup(info->app_id);
1092         key.ifname = g_strdup(info->ifname);
1093         key.imsi = g_strdup(info->imsi);
1094         key.iftype = info->iftype;
1095         key.roaming = info->roaming;
1096
1097         value.rst_state = info->rst_state;
1098         value.restriction_id = info->restriction_id;
1099
1100         if (value.rst_state != STC_RESTRICTION_EXCLUDED && info->app_id)
1101                 value.classid = get_classid_by_app_id(info->app_id, TRUE);
1102         else
1103                 value.classid = STC_UNKNOWN_CLASSID;
1104
1105         value.data_limit = info->data_limit;
1106         value.data_warn_limit = info->data_warn_limit;
1107
1108         if (__rstn_tree_add(&key, &value, FALSE) != STC_ERROR_NONE)
1109                 ret = STC_CANCEL;
1110
1111         FREE(key.app_id);
1112         FREE(key.ifname);
1113         FREE(key.imsi);
1114         return ret;
1115 }
1116
1117 static void __fill_restritions_list(void)
1118 {
1119         table_restrictions_foreach(__insert_restriction_cb, NULL);
1120         //__rstn_tree_printall();
1121 }
1122
1123 static gboolean __add_rstn_foreach_application(gpointer key,
1124                                                gpointer value,
1125                                                gpointer data)
1126 {
1127         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1128         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1129         gchar *app_id = (gchar *)data;
1130
1131         /* rstn rule is not for applications */
1132         if (rstn_key->app_id == NULL)
1133                 goto out;
1134
1135         /* rstn rule is not for this application */
1136         if (g_strcmp0(rstn_key->app_id, app_id) != 0)
1137                 goto out;
1138
1139         /* rstn rule is already applied */
1140         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1141                 goto out;
1142
1143         /* add restriction to system */
1144         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1145                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1146         else
1147                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1148
1149         __print_rstn(rstn_key, rstn_value);
1150 out:
1151         return FALSE;
1152 }
1153
1154 static void __add_rstns_for_application(gchar *app_id)
1155 {
1156         g_tree_foreach(g_system->rstns, __add_rstn_foreach_application,
1157                        app_id);
1158 }
1159
1160 stc_error_e stc_monitor_init(void)
1161 {
1162         stc_system_s *system = MALLOC0(stc_system_s, 1);
1163         GIOChannel *gio = NULL;
1164
1165         ret_value_msg_if(system == NULL, STC_ERROR_OUT_OF_MEMORY, "stc_system_s malloc fail!");
1166
1167         /* initializing cgroups */
1168         cgroup_init();
1169
1170         /* creating monitored application tree */
1171         system->apps = g_tree_new_full(__apps_tree_key_compare, NULL,
1172                                        __apps_tree_key_free,
1173                                        __apps_tree_value_free);
1174
1175         system->rstns = g_tree_new_full(__rstns_tree_key_compare, NULL,
1176                                         __rstns_tree_key_free,
1177                                         __rstns_tree_value_free);
1178
1179         /* create netlink socket for updating kernel counters */
1180         system->contr_sock = create_netlink(NETLINK_NETFILTER, 0);
1181         if (!(system->contr_sock)) {
1182                 STC_LOGE("failed to open socket");
1183                 FREE(system);
1184                 return STC_ERROR_FAIL;
1185         }
1186
1187         gio = g_io_channel_unix_new(system->contr_sock);
1188         system->contr_gsource_id =
1189                 g_io_add_watch(gio, G_IO_IN | G_IO_ERR | G_IO_HUP,
1190                                (GIOFunc) __process_contr_reply,
1191                                NULL);
1192         g_io_channel_unref(gio);
1193
1194         g_system = system;
1195
1196         /* creating restriction rules tree */
1197         __update_contr_cb(NULL);
1198
1199         /* registering periodic kernel counters update callback */
1200         g_system->contr_timer_id = g_timeout_add_seconds(CONTR_TIMER_INTERVAL,
1201                                                          __update_contr_cb,
1202                                                          NULL);
1203         if (g_system->contr_timer_id == 0) {
1204                 STC_LOGE("Failed to register kernel counters update timer");
1205                 __close_contr_sock(g_system);
1206                 return STC_ERROR_FAIL;
1207         }
1208
1209         __fill_restritions_list();
1210
1211         return STC_ERROR_NONE;
1212 }
1213
1214 stc_error_e stc_monitor_deinit(void)
1215 {
1216         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1217
1218         /* close netlink socket for updating kernel counters */
1219         __close_contr_sock(g_system);
1220
1221         /* remove kernel counters update timer */
1222         if (g_system->contr_timer_id > 0) {
1223                 g_source_remove(g_system->contr_timer_id);
1224                 g_system->contr_timer_id = 0;
1225         }
1226
1227         /* destroy monitored application tree */
1228         g_tree_destroy(g_system->apps);
1229         g_system->apps = NULL;
1230
1231         /* destroy restriction rules tree */
1232         g_tree_destroy(g_system->rstns);
1233         g_system->rstns = NULL;
1234
1235         FREE(g_system);
1236
1237         return STC_ERROR_NONE;
1238 }
1239
1240 stc_error_e stc_monitor_application_add(const stc_app_key_s app_key,
1241                                         const stc_app_value_s app_value)
1242 {
1243         stc_error_e ret = STC_ERROR_NONE;
1244         stc_app_key_s *key;
1245         stc_app_value_s *value;
1246         stc_app_value_s *lookup;
1247
1248         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1249
1250         lookup = __application_lookup(g_system->apps, &app_key);
1251         if (lookup) {
1252                 STC_LOGD("app_key already present");
1253                 return STC_ERROR_NONE;
1254         }
1255
1256         key = MALLOC0(stc_app_key_s, 1);
1257         if (!key) {
1258                 STC_LOGE("key allocation failed");
1259                 return STC_ERROR_OUT_OF_MEMORY;
1260         }
1261
1262         value = MALLOC0(stc_app_value_s, 1);
1263         if (!value) {
1264                 STC_LOGE("value allocation failed");
1265                 FREE(key);
1266                 return STC_ERROR_OUT_OF_MEMORY;
1267         }
1268
1269         key->app_id = g_strdup(app_key.app_id);
1270         key->pkg_id = g_strdup(app_key.pkg_id);
1271
1272         value->type = app_value.type;
1273         value->data_usage.in_bytes = app_value.data_usage.in_bytes;
1274         value->data_usage.out_bytes = app_value.data_usage.out_bytes;
1275
1276         value->processes = g_tree_new_full(__processes_tree_key_compare, NULL,
1277                                            __processes_tree_key_free,
1278                                            __processes_tree_value_free);
1279
1280         /* create cgroup and update classid */
1281         value->classid = get_classid_by_app_id(app_key.app_id, TRUE);
1282
1283         g_tree_insert(g_system->apps, key, value);
1284
1285         /* add nfacct rule for this classid */
1286         __add_application_monitor(key, value, stc_get_default_connection());
1287         __add_rstns_for_application(app_key.app_id);
1288
1289         return ret;
1290 }
1291
1292 stc_error_e stc_monitor_process_add(const stc_app_key_s app_key,
1293                                     const stc_process_key_s proc_key,
1294                                     const stc_process_value_s proc_value)
1295 {
1296         stc_error_e ret = STC_ERROR_NONE;
1297         stc_app_value_s *app_lookup;
1298         stc_process_key_s *key;
1299         stc_process_value_s *value;
1300         stc_process_value_s *proc_lookup;
1301
1302         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1303
1304         app_lookup = __application_lookup(g_system->apps, &app_key);
1305         if (!app_lookup) {
1306                 STC_LOGD("app_key not found");
1307                 return STC_ERROR_FAIL;
1308         }
1309
1310         proc_lookup = __process_lookup(app_lookup->processes, &proc_key);
1311         if (proc_lookup) {
1312                 STC_LOGD("proc_key already present");
1313                 return STC_ERROR_NONE;
1314         }
1315
1316         key = MALLOC0(stc_process_key_s, 1);
1317         if (!key) {
1318                 STC_LOGE("key allocation failed");
1319                 return STC_ERROR_OUT_OF_MEMORY;
1320         }
1321
1322         value = MALLOC0(stc_process_value_s, 1);
1323         if (!value) {
1324                 STC_LOGE("value allocation failed");
1325                 FREE(key);
1326                 return STC_ERROR_OUT_OF_MEMORY;
1327         }
1328
1329         key->pid = proc_key.pid;
1330
1331         value->ground = proc_value.ground;
1332
1333         g_tree_insert(app_lookup->processes, key, value);
1334
1335         /* add pid to application cgroup */
1336         place_pids_to_net_cgroup(proc_key.pid, app_key.app_id);
1337
1338         return ret;
1339 }
1340
1341 stc_error_e stc_monitor_process_remove(pid_t pid)
1342 {
1343         stc_error_e ret = STC_ERROR_NONE;
1344         stc_process_key_s proc_key = {
1345                 .pid = pid
1346         };
1347
1348         remove_pid_context_s context = {
1349                 .app_key = NULL,
1350                 .proc_key = &proc_key,
1351                 .entry_removed = FALSE,
1352         };
1353
1354         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1355
1356         g_tree_foreach(g_system->apps, __apps_tree_foreach_remove_pid,
1357                        &context);
1358
1359         if (context.entry_removed)
1360                 __application_remove_if_empty(context.app_key);
1361
1362         return ret;
1363 }
1364
1365 stc_error_e stc_monitor_process_update_ground(const stc_app_key_s app_key,
1366                                               const stc_process_key_s proc_key,
1367                                               stc_app_state_e ground)
1368 {
1369         stc_error_e ret = STC_ERROR_NONE;
1370         stc_app_value_s *app_lookup;
1371         stc_process_value_s *proc_lookup;
1372
1373         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1374
1375         app_lookup = __application_lookup(g_system->apps, &app_key);
1376         if (!app_lookup) {
1377                 STC_LOGD("app_key not found");
1378                 return STC_ERROR_FAIL;
1379         }
1380
1381         proc_lookup = __process_lookup(app_lookup->processes, &proc_key);
1382         if (!proc_lookup) {
1383                 STC_LOGD("proc_key not found");
1384                 return STC_ERROR_FAIL;
1385         }
1386
1387         if (proc_lookup->ground != ground)
1388                 proc_lookup->ground = ground;
1389
1390         if (ground == STC_APP_STATE_BACKGROUND) {
1391                 char *background_app_id = g_strconcat(app_key.app_id,
1392                                                      STC_BACKGROUND_APP_SUFFIX,
1393                                                      NULL);
1394                 place_pids_to_net_cgroup(proc_key.pid, background_app_id);
1395                 g_free(background_app_id);
1396         } else {
1397                 place_pids_to_net_cgroup(proc_key.pid, app_key.app_id);
1398         }
1399
1400         return ret;
1401 }
1402
1403 void stc_monitor_update_rstn_by_default_connection(void *data)
1404 {
1405         static default_connection_s old_connection;
1406         default_connection_s *new_connection = (default_connection_s *)data;
1407
1408         if (old_connection.path != NULL) {
1409                 if (g_system->apps)
1410                         g_tree_foreach(g_system->apps,
1411                                        __remove_application_monitor,
1412                                        (gpointer)&old_connection);
1413
1414                 if (g_system->rstns)
1415                         g_tree_foreach(g_system->rstns,
1416                                        __remove_restriction,
1417                                        (gpointer)&old_connection);
1418         }
1419
1420         FREE(old_connection.path);
1421         FREE(old_connection.ifname);
1422         old_connection.type = 0;
1423         old_connection.roaming = 0;
1424
1425         if (new_connection != NULL && new_connection->path != NULL) {
1426                 if (g_system->apps)
1427                         g_tree_foreach(g_system->apps,
1428                                        __add_application_monitor,
1429                                        (gpointer)new_connection);
1430
1431                 if (g_system->rstns)
1432                         g_tree_foreach(g_system->rstns, __add_restriction,
1433                                        NULL);
1434
1435                 old_connection.path = g_strdup(new_connection->path);
1436                 old_connection.ifname = g_strdup(new_connection->ifname);
1437                 old_connection.type = new_connection->type;
1438                 old_connection.roaming = new_connection->roaming;
1439         }
1440 }
1441
1442 stc_error_e stc_monitor_rstns_tree_add(const table_restrictions_info *info)
1443 {
1444         stc_error_e ret;
1445
1446         stc_rstn_key_s key;
1447         stc_rstn_value_s value;
1448
1449         memset(&key, 0, sizeof(stc_rstn_key_s));
1450         memset(&value, 0, sizeof(stc_rstn_value_s));
1451
1452         key.app_id = g_strdup(info->app_id);
1453         key.ifname = g_strdup(info->ifname);
1454         key.imsi = g_strdup(info->imsi);
1455         key.iftype = info->iftype;
1456         key.roaming = info->roaming;
1457
1458         value.rst_state = info->rst_state;
1459         value.restriction_id = info->restriction_id;
1460
1461         if (value.rst_state != STC_RESTRICTION_EXCLUDED && info->app_id)
1462                 value.classid = get_classid_by_app_id(info->app_id, TRUE);
1463         else
1464                 value.classid = STC_UNKNOWN_CLASSID;
1465
1466         value.data_limit = info->data_limit;
1467         value.data_warn_limit = info->data_warn_limit;
1468
1469         ret = __rstn_tree_add(&key, &value, TRUE);
1470
1471         FREE(key.app_id);
1472         FREE(key.ifname);
1473         FREE(key.imsi);
1474         return ret;
1475 }
1476
1477 stc_error_e stc_monitor_rstns_tree_remove(const table_restrictions_info *info)
1478 {
1479         stc_error_e ret;
1480
1481         stc_rstn_key_s key = {
1482                 .app_id = g_strdup(info->app_id),
1483                 .ifname = g_strdup(info->ifname),
1484                 .imsi = g_strdup(info->imsi),
1485                 .iftype = info->iftype,
1486                 .roaming = info->roaming,
1487         };
1488
1489         ret = __rstn_tree_remove(&key);
1490
1491         FREE(key.app_id);
1492         FREE(key.ifname);
1493         FREE(key.imsi);
1494         return ret;
1495 }
1496
1497 int stc_monitor_get_counter_socket(void)
1498 {
1499         return g_system->contr_sock;
1500 }