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         uint64_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 (%llu), out (%llu)]",
 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 (%llu), out (%llu)], "
 331                  "warn_limit [ in (%llu), out (%llu)], "
 332                  "counter [ in (%llu), out (%llu)], "
 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: %llu, out: %llu]",
 403                           info.rcv_bytes, info.sent_bytes);
 404         }
 405
 406         STC_LOGD("rstn_id [%llu], effective limit [in: %llu, out: %llu], "
 407                  "effective warn limit [in: %llu, out: %llu], "
 408                  "datausage [in: %llu, out: %llu]",
 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                 /* block immediately */
 554                 if (rstn_value->counter.in_bytes >= rstn_value->limit.in_bytes) {
 555                         __del_iptables_in(context->counter);
 556                         __add_iptables_in(context->counter);
 557                         rstn_value->in_limit_reached = TRUE;
 558                         //context->in_limit_reached = TRUE;
 559                 }
 560
 561                 g_system->rstns_tree_updated = TRUE;
 562                 __print_rstn(rstn_key, rstn_value);
 563                 break;
 564         case NFACCT_COUNTER_OUT:
 565                 rstn_value->counter.out_bytes += context->bytes;
 566
 567                 /* block immediately */
 568                 if (rstn_value->counter.out_bytes >= rstn_value->limit.out_bytes) {
 569                         __del_iptables_out(context->counter);
 570                         __add_iptables_out(context->counter);
 571                         rstn_value->out_limit_reached = TRUE;
 572                         //context->out_limit_reached = TRUE;
 573                 }
 574
 575                 g_system->rstns_tree_updated = TRUE;
 576                 __print_rstn(rstn_key, rstn_value);
 577                 break;
 578         default:
 579                 STC_LOGE("unknown iotype");
 580         }
 581
 582
 583 try_next_callback:
 584         return FALSE;
 585 }
 586
 587 static gboolean __update_app_statistics(gpointer key, gpointer value,
 588                                         gpointer data)
 589 {
 590         stc_app_key_s *app_key = (stc_app_key_s *)key;
 591         stc_app_value_s *app_value = (stc_app_value_s *)value;
 592         time_t *touch_time = (time_t *)data;
 593         stc_db_classid_iftype_key stat_key;
 594         stc_db_app_stats stat;
 595         char *default_ifname = stc_default_connection_get_ifname();
 596
 597         memset(&stat_key, 0, sizeof(stc_db_classid_iftype_key));
 598         memset(&stat, 0 , sizeof(stc_db_app_stats));
 599
 600         stat_key.classid = app_value->classid;
 601         stat_key.iftype = stc_default_connection_get_type();
 602         if (STC_IFACE_DATACALL == stat_key.iftype)
 603                 stat_key.imsi = g_strdup("unknown");
 604         else
 605                 stat_key.imsi = g_strdup("noneimsi");
 606         g_strlcpy(stat_key.ifname, default_ifname, MAX_IFACE_LENGTH);
 607
 608         stat.app_id = g_strdup(app_key->app_id);
 609         stat.snd_count = app_value->counter.out_bytes;
 610         stat.rcv_count = app_value->counter.in_bytes;
 611         stat.delta_snd = 0;
 612         stat.delta_rcv = 0;
 613         stat.is_roaming = stc_default_connection_get_roaming();
 614         stat.ground = STC_APP_STATE_UNKNOWN;
 615
 616         table_statistics_insert(&stat_key, &stat, *touch_time);
 617
 618         app_value->counter.out_bytes = 0;
 619         app_value->counter.in_bytes = 0;
 620
 621         FREE(stat.app_id);
 622         FREE(stat_key.imsi);
 623         FREE(default_ifname);
 624
 625         return FALSE;
 626 }
 627
 628 static gboolean __flush_apps_stats_to_database(gpointer user_data)
 629 {
 630         time_t current_time = time(0);
 631
 632         if (g_system->apps_tree_updated == FALSE)
 633                 return G_SOURCE_REMOVE;
 634
 635         g_system->apps_tree_updated = FALSE;
 636
 637         if (g_system->apps)
 638                 g_tree_foreach(g_system->apps,
 639                                __update_app_statistics,
 640                                &current_time);
 641
 642         STC_LOGI("Flushed app stats to database");
 643         return G_SOURCE_REMOVE;
 644 }
 645
 646 static gboolean __update_counter_statistics(gpointer key, gpointer value,
 647                                             gpointer data)
 648 {
 649         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 650         table_counters_info info = {
 651                 .restriction_id = rstn_value->restriction_id,
 652                 .sent_bytes = rstn_value->counter.out_bytes,
 653                 .rcv_bytes = rstn_value->counter.in_bytes
 654         };
 655
 656         table_counters_update_counters(&info);
 657
 658         return FALSE;
 659 }
 660
 661 static gboolean __flush_rstns_counter_to_database(gpointer user_data)
 662 {
 663         time_t current_time = time(0);
 664
 665         if (g_system->rstns_tree_updated == FALSE)
 666                 return G_SOURCE_REMOVE;
 667
 668         g_system->rstns_tree_updated = FALSE;
 669
 670         if (g_system->rstns)
 671                 g_tree_foreach(g_system->rstns,
 672                                __update_counter_statistics,
 673                                &current_time);
 674
 675         STC_LOGI("Flushed rstns counters to database");
 676         return G_SOURCE_REMOVE;
 677 }
 678
 679 static gboolean __apps_counter_update_foreach_classid(gpointer key,
 680                                                       gpointer value,
 681                                                       gpointer data)
 682 {
 683         stc_app_key_s *app_key = (stc_app_key_s *)key;
 684         stc_app_value_s *app_value = (stc_app_value_s *)value;
 685         classid_bytes_context_s *context = (classid_bytes_context_s *)data;
 686
 687         if (context->counter->intend != NFACCT_COUNTER)
 688                 goto try_next_callback;
 689
 690         if (app_value->classid != context->counter->classid)
 691                 goto try_next_callback;
 692
 693         switch (context->counter->iotype) {
 694         case NFACCT_COUNTER_IN:
 695                 app_value->data_usage.in_bytes += context->bytes;
 696                 app_value->counter.in_bytes = context->bytes;
 697                 g_system->apps_tree_updated = TRUE;
 698
 699                 __apps_tree_foreach_print(app_key, app_value, NULL);
 700                 break;
 701         case NFACCT_COUNTER_OUT:
 702                 app_value->data_usage.out_bytes += context->bytes;
 703                 app_value->counter.out_bytes = context->bytes;
 704                 g_system->apps_tree_updated = TRUE;
 705
 706                 __apps_tree_foreach_print(app_key, app_value, NULL);
 707                 break;
 708         default:
 709                 STC_LOGE("unknown iotype");
 710         }
 711
 712 try_next_callback:
 713         return FALSE;
 714 }
 715
 716 static void __fill_nfacct_result(char *cnt_name, uint64_t bytes,
 717                                  struct counter_arg *carg)
 718 {
 719         struct nfacct_rule counter = {
 720                 .carg = carg,
 721                 .name = {0},
 722                 .ifname = {0},
 723                 0
 724         };
 725
 726         classid_bytes_context_s context = {
 727                 .counter = &counter,
 728                 .bytes = bytes,
 729                 .in_limit_reached = FALSE,
 730                 .out_limit_reached = FALSE
 731         };
 732
 733         STC_LOGD("cnt_name %s", cnt_name);
 734
 735         if (!recreate_counter_by_name(cnt_name, &counter)) {
 736                 STC_LOGE("Can't parse counter name %s", cnt_name);
 737                 return;
 738         }
 739
 740         STC_LOGI("classid %lu, iftype %u, iotype %d, intend %d, ifname %s, bytes %llu",
 741                  context.counter->classid, context.counter->iftype,
 742                  context.counter->iotype, context.counter->intend,
 743                  context.counter->ifname, context.bytes);
 744
 745         if (g_system->rstns)
 746                 g_tree_foreach(g_system->rstns,
 747                                __rstn_counter_update_foreach_classid,
 748                                &context);
 749
 750         if (g_system->apps)
 751                 g_tree_foreach(g_system->apps,
 752                                __apps_counter_update_foreach_classid,
 753                                &context);
 754 }
 755
 756 static int __fill_counters(struct rtattr *attr_list[__NFACCT_MAX],
 757                            void *user_data)
 758 {
 759         struct counter_arg *carg = user_data;
 760         char *cnt_name = (char *)RTA_DATA(attr_list[NFACCT_NAME]);
 761         if (carg->initiate) {
 762                 /**
 763                  * TODO: this will be used when daemon starts to update existing
 764                  * counter data if present.
 765                  *
 766                  populate_counters(cnt_name, carg);
 767                  */
 768         } else {
 769                 uint64_t *bytes_p =
 770                         (uint64_t *)RTA_DATA(attr_list[NFACCT_BYTES]);
 771                 int bytes = be64toh(*bytes_p);
 772                 if (bytes) {
 773                         ++carg->serialized_counters;
 774                         __fill_nfacct_result(cnt_name, bytes, carg);
 775                 }
 776         }
 777
 778         return 0;
 779 }
 780
 781 static int __post_fill_counters(void *user_data)
 782 {
 783         struct counter_arg *carg = user_data;
 784
 785         if (carg->initiate)
 786                 carg->initiate = 0;
 787
 788         return 0;
 789 }
 790
 791 static void __process_network_counter(struct genl *ans,
 792                                       struct counter_arg *carg)
 793 {
 794         struct netlink_serialization_params ser_params = {
 795                 .carg = carg,
 796                 .ans = ans,
 797                 .eval_attr = __fill_counters,
 798                 .post_eval_attr = __post_fill_counters,
 799         };
 800
 801         netlink_serialization_command *netlink =
 802                 netlink_create_command(&ser_params);
 803         if (!netlink) {
 804                 STC_LOGE("Can not create command");
 805                 return;
 806         }
 807
 808         netlink->deserialize_answer(&(netlink->params));
 809 }
 810
 811 static gboolean __process_contr_reply(GIOChannel *source,
 812                                       GIOCondition condition,
 813                                       gpointer user_data)
 814 {
 815         int sock = g_io_channel_unix_get_fd(source);
 816         struct genl ans;
 817         int ret;
 818         stc_s *stc = stc_get_manager();
 819
 820         if ((condition & G_IO_ERR) ||
 821             (condition & G_IO_HUP) ||
 822             (condition & G_IO_NVAL)) {
 823                 /* G_IO_ERR/G_IO_HUP/G_IO_NVAL received */
 824
 825                 __close_contr_sock(g_system);
 826                 return FALSE;
 827         }
 828
 829         if (stc == NULL) {
 830                 STC_LOGE("Can't get stc data");
 831                 goto out;
 832         }
 833
 834         ret = read_netlink(sock,
 835                            &ans, sizeof(struct genl));
 836         STC_LOGD("Counter data received ret [%d]", ret);
 837         if (ret == 0)
 838                 goto out;
 839
 840         stc->carg->ans_len = ret;
 841         __process_network_counter(&ans, stc->carg);
 842
 843         g_idle_add(__flush_apps_stats_to_database, NULL);
 844         g_idle_add(__flush_rstns_counter_to_database, NULL);
 845 out:
 846         return TRUE;
 847 }
 848
 849 static gboolean __update_contr_cb(void *user_data)
 850 {
 851         /* Here we just sent command, answer we receive in another callback */
 852         stc_s *stc = stc_get_manager();
 853         ret_value_msg_if(stc == NULL, STC_ERROR_FAIL, "Can't get stc data");
 854         if (!stc->carg) {
 855                 stc->carg = MALLOC0(counter_arg_s, 1);
 856                 stc->carg->sock = stc_monitor_get_counter_socket();
 857         }
 858
 859         STC_LOGD("Get all counters");
 860         nfacct_send_get_all(stc->carg);
 861
 862         /* we need to continue the timer */
 863         return TRUE;
 864 }
 865 #if 0
 866 static gboolean __rstn_tree_foreach_print(gpointer key, gpointer value,
 867                                           gpointer data)
 868 {
 869         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 870         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 871
 872         __print_rstn(rstn_key, rstn_value);
 873         return FALSE;
 874 }
 875
 876 static void __rstn_tree_printall(void)
 877 {
 878         g_tree_foreach(g_system->rstns, __rstn_tree_foreach_print, NULL);
 879 }
 880 #endif
 881 static stc_rstn_value_s * __rstn_lookup(GTree *rstns_tree,
 882                                         const stc_rstn_key_s *key)
 883 {
 884         stc_rstn_value_s *lookup;
 885
 886         ret_value_msg_if(rstns_tree == NULL, NULL, "rstns_tree is null!");
 887
 888         lookup = g_tree_lookup(rstns_tree, key);
 889
 890         return lookup;
 891 }
 892
 893 static gboolean __remove_restriction(gpointer key, gpointer value,
 894                                      gpointer data)
 895 {
 896         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 897         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 898
 899         /* rstn rule is already removed */
 900         if (rstn_value->rst_state == STC_RESTRICTION_REMOVED)
 901                 return FALSE;
 902
 903         __process_restriction(RST_UNSET, rstn_key, rstn_value, data);
 904         __print_rstn(rstn_key, rstn_value);
 905         return FALSE;
 906 }
 907
 908 static gboolean __add_restriction_debug(gpointer key, gpointer value,
 909                                         gpointer data)
 910 {
 911         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 912         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 913
 914         /* rstn rule is activated */
 915         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
 916                 return FALSE;
 917
 918         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
 919                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
 920         else
 921                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
 922
 923         __print_rstn(rstn_key, rstn_value);
 924
 925         return FALSE;
 926 }
 927
 928 static gboolean __add_restriction(gpointer key, gpointer value, gpointer data)
 929 {
 930         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 931         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 932
 933         /* rstn rule is activated */
 934         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
 935                 return FALSE;
 936
 937         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
 938                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
 939         else
 940                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
 941
 942         return FALSE;
 943 }
 944
 945 static stc_error_e __rstn_tree_remove(stc_rstn_key_s *key)
 946 {
 947         stc_rstn_value_s *lookup_value;
 948
 949         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
 950
 951         lookup_value = __rstn_lookup(g_system->rstns, key);
 952         if (!lookup_value) {
 953                 STC_LOGE("key not found");
 954                 return STC_ERROR_NO_DATA;
 955         }
 956
 957         __remove_restriction(key, lookup_value, NULL);
 958
 959         /* remove counter also */
 960         table_counters_delete(lookup_value->restriction_id);
 961
 962         if (!g_tree_remove(g_system->rstns, key)) {
 963                 STC_LOGD("key not found");
 964                 return STC_ERROR_NO_DATA;
 965         }
 966
 967         return STC_ERROR_NONE;
 968 }
 969
 970 static stc_error_e __rstn_tree_add(stc_rstn_key_s *key,
 971                                    stc_rstn_value_s *value, gboolean debug)
 972 {
 973         stc_rstn_value_s *rstn_value;
 974
 975         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
 976
 977         rstn_value = __rstn_lookup(g_system->rstns, key);
 978         if (!rstn_value) {
 979                 stc_rstn_key_s *rstn_key = MALLOC0(stc_rstn_key_s, 1);
 980                 if (!rstn_key) {
 981                         STC_LOGE("rstn_key allocation failed");
 982                         return STC_ERROR_OUT_OF_MEMORY;
 983                 }
 984
 985                 rstn_value = MALLOC0(stc_rstn_value_s, 1);
 986                 if (!rstn_value) {
 987                         STC_LOGE("rstn_value allocation failed");
 988                         FREE(rstn_key);
 989                         return STC_ERROR_OUT_OF_MEMORY;
 990                 }
 991
 992                 rstn_key->app_id = g_strdup(key->app_id);
 993                 rstn_key->ifname = g_strdup(key->ifname);
 994                 rstn_key->imsi = g_strdup(key->imsi);
 995                 rstn_key->iftype = key->iftype;
 996                 rstn_key->roaming = key->roaming;
 997
 998                 g_tree_insert(g_system->rstns, rstn_key, rstn_value);
 999         }
1000
1001         rstn_value->restriction_id = value->restriction_id;
1002         rstn_value->rst_state = value->rst_state;
1003         rstn_value->classid = value->classid;
1004         rstn_value->limit.in_bytes = value->limit.in_bytes;
1005         rstn_value->limit.out_bytes = value->limit.out_bytes;
1006         rstn_value->warn_limit.in_bytes = value->warn_limit.in_bytes;
1007         rstn_value->warn_limit.out_bytes = value->warn_limit.out_bytes;
1008         rstn_value->counter.in_bytes = 0;
1009         rstn_value->counter.out_bytes = 0;
1010
1011         if (debug == TRUE)
1012                 __add_restriction_debug(key, rstn_value, NULL);
1013         else
1014                 __add_restriction(key, rstn_value, NULL);
1015
1016         return STC_ERROR_NONE;
1017 }
1018
1019 static stc_cb_ret_e __insert_restriction_cb(const table_restrictions_info *info,
1020                                             void *user_data)
1021 {
1022         stc_cb_ret_e ret = STC_CONTINUE;
1023
1024         stc_rstn_key_s key;
1025         stc_rstn_value_s value;
1026
1027         memset(&key, 0, sizeof(stc_rstn_key_s));
1028         memset(&value, 0, sizeof(stc_rstn_value_s));
1029
1030         key.app_id = g_strdup(info->app_id);
1031         key.ifname = g_strdup(info->ifname);
1032         key.imsi = g_strdup(info->imsi);
1033         key.iftype = info->iftype;
1034         key.roaming = info->roaming;
1035
1036         value.rst_state = info->rst_state;
1037         value.restriction_id = info->restriction_id;
1038
1039         if (value.rst_state != STC_RESTRICTION_EXCLUDED)
1040                 value.classid = get_classid_by_app_id(info->app_id ?
1041                                                       info->app_id :
1042                                                       STC_ALL_APP, TRUE);
1043         else
1044                 value.classid = STC_UNKNOWN_CLASSID;
1045
1046         value.limit.in_bytes = info->rcv_limit;
1047         value.limit.out_bytes = info->send_limit;
1048         value.warn_limit.in_bytes = info->rcv_warn_limit;
1049         value.warn_limit.out_bytes = info->send_warn_limit;
1050
1051         if (__rstn_tree_add(&key, &value, FALSE) != STC_ERROR_NONE)
1052                 ret = STC_CANCEL;
1053
1054         FREE(key.app_id);
1055         FREE(key.ifname);
1056         FREE(key.imsi);
1057         return ret;
1058 }
1059
1060 static void __fill_restritions_list(void)
1061 {
1062         table_restrictions_foreach(__insert_restriction_cb, NULL);
1063         //__rstn_tree_printall();
1064 }
1065
1066 static gboolean __add_rstn_foreach_application(gpointer key,
1067                                                gpointer value,
1068                                                gpointer data)
1069 {
1070         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1071         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1072         gchar *app_id = (gchar *)data;
1073
1074         /* rstn rule is not for applications */
1075         if (rstn_key->app_id == NULL)
1076                 goto out;
1077
1078         /* rstn rule is not for this application */
1079         if (g_strcmp0(rstn_key->app_id, app_id) != 0)
1080                 goto out;
1081
1082         /* rstn rule is already applied */
1083         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1084                 goto out;
1085
1086         /* add restriction to system */
1087         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1088                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1089         else
1090                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1091
1092         __print_rstn(rstn_key, rstn_value);
1093 out:
1094         return FALSE;
1095 }
1096
1097 static void __add_rstns_for_application(gchar *app_id)
1098 {
1099         g_tree_foreach(g_system->rstns, __add_rstn_foreach_application,
1100                        app_id);
1101 }
1102
1103 /* used only for (STC_ALL_APP/STC_BACKGROUND_APP_NAME) */
1104 static void __stc_monitor_add_application_by_app_id(const char *app_id)
1105 {
1106         stc_app_key_s app_key;
1107         stc_app_value_s app_value;
1108
1109         if (app_id == NULL)
1110                 return;
1111
1112         memset(&app_key, 0, sizeof(stc_app_key_s));
1113         memset(&app_value, 0, sizeof(stc_app_value_s));
1114
1115         app_key.pkg_id = g_strdup(app_id);
1116         app_key.app_id = g_strdup(app_id);
1117
1118         app_value.type = STC_APP_TYPE_NONE;
1119         app_value.processes = NULL;
1120         app_value.counter.in_bytes = 0;
1121         app_value.counter.out_bytes = 0;
1122
1123         stc_monitor_application_add(app_key, app_value);
1124
1125         FREE(app_key.pkg_id);
1126         FREE(app_key.app_id);
1127
1128         __apps_tree_printall();
1129 }
1130
1131 stc_error_e stc_monitor_init(void)
1132 {
1133         stc_system_s *system = MALLOC0(stc_system_s, 1);
1134         GIOChannel *gio = NULL;
1135
1136         ret_value_msg_if(system == NULL, STC_ERROR_OUT_OF_MEMORY, "stc_system_s malloc fail!");
1137
1138         /* creating monitored application tree */
1139         system->apps = g_tree_new_full(__apps_tree_key_compare, NULL,
1140                                        __apps_tree_key_free,
1141                                        __apps_tree_value_free);
1142
1143         system->rstns = g_tree_new_full(__rstns_tree_key_compare, NULL,
1144                                         __rstns_tree_key_free,
1145                                         __rstns_tree_value_free);
1146
1147         /* create netlink socket for updating kernel counters */
1148         system->contr_sock = create_netlink(NETLINK_NETFILTER, 0);
1149         if (!(system->contr_sock)) {
1150                 STC_LOGE("failed to open socket");
1151                 FREE(system);
1152                 return STC_ERROR_FAIL;
1153         }
1154
1155         gio = g_io_channel_unix_new(system->contr_sock);
1156         system->contr_gsource_id =
1157                 g_io_add_watch(gio, G_IO_IN | G_IO_ERR | G_IO_HUP,
1158                                (GIOFunc) __process_contr_reply,
1159                                NULL);
1160         g_io_channel_unref(gio);
1161
1162         g_system = system;
1163
1164         /* create entry for STC_ALL_APP */
1165         __stc_monitor_add_application_by_app_id(STC_ALL_APP);
1166
1167         /* create entry for STC_BACKGROUND_APP_NAME */
1168         __stc_monitor_add_application_by_app_id(STC_BACKGROUND_APP_NAME);
1169
1170         /* create background cgroup */
1171         g_system->background_pids = NULL;
1172         create_net_background_cgroup(g_system->background_pids);
1173
1174         /* creating restriction rules tree */
1175         __update_contr_cb(NULL);
1176
1177         /* registering periodic kernel counters update callback */
1178         g_system->contr_timer_id = g_timeout_add_seconds(CONTR_TIMER_INTERVAL,
1179                                                          __update_contr_cb,
1180                                                          NULL);
1181         if (g_system->contr_timer_id == 0) {
1182                 STC_LOGE("Failed to register kernel counters update timer");
1183                 __close_contr_sock(g_system);
1184                 return STC_ERROR_FAIL;
1185         }
1186
1187         __fill_restritions_list();
1188
1189         return STC_ERROR_NONE;
1190 }
1191
1192 stc_error_e stc_monitor_deinit(void)
1193 {
1194         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1195
1196         /* close netlink socket for updating kernel counters */
1197         __close_contr_sock(g_system);
1198
1199         /* remove kernel counters update timer */
1200         if (g_system->contr_timer_id > 0) {
1201                 g_source_remove(g_system->contr_timer_id);
1202                 g_system->contr_timer_id = 0;
1203         }
1204
1205         /* free background pid list */
1206         g_slist_free(g_system->background_pids);
1207         g_system->background_pids = NULL;
1208
1209         /* destroy monitored application tree */
1210         g_tree_destroy(g_system->apps);
1211         g_system->apps = NULL;
1212
1213         /* destroy restriction rules tree */
1214         g_tree_destroy(g_system->rstns);
1215         g_system->rstns = NULL;
1216
1217         FREE(g_system);
1218
1219         return STC_ERROR_NONE;
1220 }
1221
1222 stc_error_e stc_monitor_application_add(const stc_app_key_s app_key,
1223                                         const stc_app_value_s app_value)
1224 {
1225         stc_error_e ret = STC_ERROR_NONE;
1226         stc_app_key_s *key;
1227         stc_app_value_s *value;
1228         stc_app_value_s *lookup;
1229
1230         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1231
1232         lookup = __application_lookup(g_system->apps, &app_key);
1233         if (lookup) {
1234                 STC_LOGD("app_key already present");
1235                 return STC_ERROR_NONE;
1236         }
1237
1238         key = MALLOC0(stc_app_key_s, 1);
1239         if (!key) {
1240                 STC_LOGE("key allocation failed");
1241                 return STC_ERROR_OUT_OF_MEMORY;
1242         }
1243
1244         value = MALLOC0(stc_app_value_s, 1);
1245         if (!value) {
1246                 STC_LOGE("value allocation failed");
1247                 FREE(key);
1248                 return STC_ERROR_OUT_OF_MEMORY;
1249         }
1250
1251         key->app_id = g_strdup(app_key.app_id);
1252         key->pkg_id = g_strdup(app_key.pkg_id);
1253
1254         value->type = app_value.type;
1255         value->counter.in_bytes = app_value.counter.in_bytes;
1256         value->counter.out_bytes = app_value.counter.out_bytes;
1257
1258         value->processes = g_tree_new_full(__processes_tree_key_compare, NULL,
1259                                            __processes_tree_key_free,
1260                                            __processes_tree_value_free);
1261
1262         /* create cgroup and update classid */
1263         value->classid = get_classid_by_app_id(app_key.app_id, TRUE);
1264
1265         g_tree_insert(g_system->apps, key, value);
1266
1267         /* add nfacct rule for this classid */
1268         __add_application_monitor(key, value, stc_get_default_connection());
1269         __add_rstns_for_application(app_key.app_id);
1270
1271         return ret;
1272 }
1273
1274 stc_error_e stc_monitor_process_add(const stc_app_key_s app_key,
1275                                     const stc_process_key_s proc_key,
1276                                     const stc_process_value_s proc_value)
1277 {
1278         stc_error_e ret = STC_ERROR_NONE;
1279         stc_app_value_s *app_lookup;
1280         stc_process_key_s *key;
1281         stc_process_value_s *value;
1282         stc_process_value_s *proc_lookup;
1283
1284         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1285
1286         app_lookup = __application_lookup(g_system->apps, &app_key);
1287         if (!app_lookup) {
1288                 STC_LOGD("app_key not found");
1289                 return STC_ERROR_FAIL;
1290         }
1291
1292         proc_lookup = __process_lookup(app_lookup->processes, &proc_key);
1293         if (proc_lookup) {
1294                 STC_LOGD("proc_key already present");
1295                 return STC_ERROR_NONE;
1296         }
1297
1298         key = MALLOC0(stc_process_key_s, 1);
1299         if (!key) {
1300                 STC_LOGE("key allocation failed");
1301                 return STC_ERROR_OUT_OF_MEMORY;
1302         }
1303
1304         value = MALLOC0(stc_process_value_s, 1);
1305         if (!value) {
1306                 STC_LOGE("value allocation failed");
1307                 FREE(key);
1308                 return STC_ERROR_OUT_OF_MEMORY;
1309         }
1310
1311         key->pid = proc_key.pid;
1312
1313         value->ground = proc_value.ground;
1314
1315         g_tree_insert(app_lookup->processes, key, value);
1316
1317         /* add pid to application cgroup */
1318         place_pids_to_net_cgroup(proc_key.pid, app_key.app_id);
1319
1320         /* add pid to background cgroup if gound state is background */
1321         if (proc_value.ground == STC_APP_STATE_BACKGROUND)
1322                 add_pid_to_background_cgroup(proc_key.pid);
1323
1324         return ret;
1325 }
1326
1327 stc_error_e stc_monitor_process_remove(pid_t pid)
1328 {
1329         stc_error_e ret = STC_ERROR_NONE;
1330         stc_process_key_s proc_key = {
1331                 .pid = pid
1332         };
1333
1334         remove_pid_context_s context = {
1335                 .app_key = NULL,
1336                 .proc_key = &proc_key,
1337                 .entry_removed = FALSE,
1338         };
1339
1340         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1341
1342         /* remove pid from background cgroup */
1343         remove_pid_from_background_cgroup(pid);
1344
1345         g_tree_foreach(g_system->apps, __apps_tree_foreach_remove_pid,
1346                        &context);
1347
1348         if (context.entry_removed)
1349                 __application_remove_if_empty(context.app_key);
1350
1351         return ret;
1352 }
1353
1354 stc_error_e stc_monitor_process_update_ground(const stc_app_key_s app_key,
1355                                               const stc_process_key_s proc_key,
1356                                               stc_app_state_e ground)
1357 {
1358         stc_error_e ret = STC_ERROR_NONE;
1359         stc_app_value_s *app_lookup;
1360         stc_process_value_s *proc_lookup;
1361
1362         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1363
1364         app_lookup = __application_lookup(g_system->apps, &app_key);
1365         if (!app_lookup) {
1366                 STC_LOGD("app_key not found");
1367                 return STC_ERROR_FAIL;
1368         }
1369
1370         proc_lookup = __process_lookup(app_lookup->processes, &proc_key);
1371         if (!proc_lookup) {
1372                 STC_LOGD("proc_key not found");
1373                 return STC_ERROR_FAIL;
1374         }
1375
1376         if (proc_lookup->ground != ground)
1377                 proc_lookup->ground = ground;
1378
1379         if (ground == STC_APP_STATE_BACKGROUND)
1380                 add_pid_to_background_cgroup(proc_key.pid);
1381         else
1382                 place_pids_to_net_cgroup(proc_key.pid, app_key.app_id);
1383
1384         return ret;
1385 }
1386
1387 void stc_monitor_update_rstn_by_default_connection(void *data)
1388 {
1389         static default_connection_s old_connection;
1390         default_connection_s *new_connection = (default_connection_s *)data;
1391
1392         if (old_connection.path != NULL) {
1393                 if (g_system->apps)
1394                         g_tree_foreach(g_system->apps,
1395                                        __remove_application_monitor,
1396                                        (gpointer)&old_connection);
1397
1398                 if (g_system->rstns)
1399                         g_tree_foreach(g_system->rstns,
1400                                        __remove_restriction,
1401                                        (gpointer)&old_connection);
1402         }
1403
1404         FREE(old_connection.path);
1405         FREE(old_connection.ifname);
1406         old_connection.type = 0;
1407         old_connection.roaming = 0;
1408
1409         if (new_connection != NULL && new_connection->path != NULL) {
1410                 if (g_system->apps)
1411                         g_tree_foreach(g_system->apps,
1412                                        __add_application_monitor,
1413                                        (gpointer)new_connection);
1414
1415                 if (g_system->rstns)
1416                         g_tree_foreach(g_system->rstns, __add_restriction,
1417                                        NULL);
1418
1419                 old_connection.path = g_strdup(new_connection->path);
1420                 old_connection.ifname = g_strdup(new_connection->ifname);
1421                 old_connection.type = new_connection->type;
1422                 old_connection.roaming = new_connection->roaming;
1423         }
1424 }
1425
1426 stc_error_e stc_monitor_rstns_tree_add(const table_restrictions_info *info)
1427 {
1428         stc_error_e ret;
1429
1430         stc_rstn_key_s key;
1431         stc_rstn_value_s value;
1432
1433         memset(&key, 0, sizeof(stc_rstn_key_s));
1434         memset(&value, 0, sizeof(stc_rstn_value_s));
1435
1436         key.app_id = g_strdup(info->app_id);
1437         key.ifname = g_strdup(info->ifname);
1438         key.imsi = g_strdup(info->imsi);
1439         key.iftype = info->iftype;
1440         key.roaming = info->roaming;
1441
1442         value.rst_state = info->rst_state;
1443         value.restriction_id = info->restriction_id;
1444
1445         if (value.rst_state != STC_RESTRICTION_EXCLUDED)
1446                 value.classid = get_classid_by_app_id(info->app_id ?
1447                                                       info->app_id :
1448                                                       STC_ALL_APP, TRUE);
1449         else
1450                 value.classid = STC_UNKNOWN_CLASSID;
1451
1452         value.limit.in_bytes = info->rcv_limit;
1453         value.limit.out_bytes = info->send_limit;
1454         value.warn_limit.in_bytes = info->rcv_warn_limit;
1455         value.warn_limit.out_bytes = info->send_warn_limit;
1456
1457         ret = __rstn_tree_add(&key, &value, TRUE);
1458
1459         FREE(key.app_id);
1460         FREE(key.ifname);
1461         FREE(key.imsi);
1462         return ret;
1463 }
1464
1465 stc_error_e stc_monitor_rstns_tree_remove(const table_restrictions_info *info)
1466 {
1467         stc_error_e ret;
1468
1469         stc_rstn_key_s key = {
1470                 .app_id = g_strdup(info->app_id),
1471                 .ifname = g_strdup(info->ifname),
1472                 .imsi = g_strdup(info->imsi),
1473                 .iftype = info->iftype,
1474                 .roaming = info->roaming,
1475         };
1476
1477         ret = __rstn_tree_remove(&key);
1478
1479         FREE(key.app_id);
1480         FREE(key.ifname);
1481         FREE(key.imsi);
1482         return ret;
1483 }
1484
1485 int stc_monitor_get_counter_socket(void)
1486 {
1487         return g_system->contr_sock;
1488 }