src/monitor/stc-monitor.c

   1 /*
   2  * Copyright (c) 2016 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include <linux/netlink.h>
  18
  19 #include "stc-default-connection.h"
  20 #include "helper-nl.h"
  21 #include "helper-nfacct-rule.h"
  22 #include "helper-net-cls.h"
  23 #include "counter.h"
  24 #include "table-statistics.h"
  25 #include "table-counters.h"
  26 #include "stc-monitor.h"
  27
  28 typedef struct {
  29         stc_app_key_s *app_key;
  30         stc_process_key_s *proc_key;
  31         gboolean entry_removed;
  32 } remove_pid_context_s;
  33
  34 typedef struct {
  35         struct nfacct_rule *counter;
  36         int64_t bytes;
  37         gboolean in_limit_reached;
  38         gboolean out_limit_reached;
  39 } classid_bytes_context_s;
  40
  41 static stc_system_s *g_system = NULL;
  42
  43 static nfacct_rule_jump __get_jump_by_intend(struct nfacct_rule *counter)
  44 {
  45         if (counter->intend == NFACCT_WARN)
  46                 return NFACCT_JUMP_ACCEPT;
  47         else if (counter->intend == NFACCT_BLOCK)
  48                 return NFACCT_JUMP_REJECT;
  49
  50         return NFACCT_JUMP_UNKNOWN;
  51 }
  52
  53 static stc_error_e __add_iptables_in(struct nfacct_rule *counter)
  54 {
  55         return produce_net_rule(counter, 0, 0,
  56                 NFACCT_ACTION_INSERT, __get_jump_by_intend(counter),
  57                 NFACCT_COUNTER_IN);
  58 }
  59
  60 static stc_error_e __add_iptables_out(struct nfacct_rule *counter)
  61 {
  62         return produce_net_rule(counter, 0, 0,
  63                 NFACCT_ACTION_INSERT, __get_jump_by_intend(counter),
  64                 NFACCT_COUNTER_OUT);
  65 }
  66
  67 static stc_error_e __del_iptables_in(struct nfacct_rule *counter)
  68 {
  69         return produce_net_rule(counter, 0, 0,
  70                 NFACCT_ACTION_DELETE, __get_jump_by_intend(counter),
  71                 NFACCT_COUNTER_IN);
  72 }
  73
  74 static stc_error_e __del_iptables_out(struct nfacct_rule *counter)
  75 {
  76         return produce_net_rule(counter, 0, 0,
  77                 NFACCT_ACTION_DELETE, __get_jump_by_intend(counter),
  78                 NFACCT_COUNTER_OUT);
  79 }
  80
  81 static int __processes_tree_key_compare(gconstpointer a, gconstpointer b,
  82                                         gpointer UNUSED user_data)
  83 {
  84         stc_process_key_s *key_a = (stc_process_key_s *)a;
  85         stc_process_key_s *key_b = (stc_process_key_s *)b;
  86
  87         return key_a->pid - key_b->pid;
  88 }
  89
  90 static void __processes_tree_value_free(gpointer data)
  91 {
  92         stc_process_value_s *value = (stc_process_value_s *)data;
  93
  94         FREE(value);
  95 }
  96
  97 static void __processes_tree_key_free(gpointer data)
  98 {
  99         stc_process_key_s *key = (stc_process_key_s *)data;
 100
 101         FREE(key);
 102 }
 103
 104 static int __apps_tree_key_compare(gconstpointer a, gconstpointer b,
 105                                    gpointer UNUSED user_data)
 106 {
 107         stc_app_key_s *key_a = (stc_app_key_s *)a;
 108         stc_app_key_s *key_b = (stc_app_key_s *)b;
 109         gint ret;
 110
 111         ret = g_strcmp0(key_a->pkg_id, key_b->pkg_id);
 112         if (ret)
 113                 return ret;
 114
 115         return g_strcmp0(key_a->app_id, key_b->app_id);
 116 }
 117
 118 static void __apps_tree_value_free(gpointer data)
 119 {
 120         stc_app_value_s *value = (stc_app_value_s *)data;
 121
 122         g_tree_destroy(value->processes);
 123         value->processes = NULL;
 124
 125         FREE(value);
 126 }
 127
 128 static void __apps_tree_key_free(gpointer data)
 129 {
 130         stc_app_key_s *key = (stc_app_key_s *)data;
 131
 132         g_free(key->pkg_id);
 133         g_free(key->app_id);
 134         FREE(key);
 135 }
 136
 137 static int __rstns_tree_key_compare(gconstpointer a, gconstpointer b,
 138                                     gpointer UNUSED user_data)
 139 {
 140         stc_rstn_key_s *key_a = (stc_rstn_key_s *)a;
 141         stc_rstn_key_s *key_b = (stc_rstn_key_s *)b;
 142         int ret;
 143
 144         ret = g_strcmp0(key_a->app_id, key_b->app_id);
 145         if (ret != 0)
 146                 return ret;
 147
 148         ret = g_strcmp0(key_a->ifname, key_b->ifname);
 149         if (ret != 0)
 150                 return ret;
 151
 152         ret = g_strcmp0(key_a->imsi, key_b->imsi);
 153         if (ret != 0)
 154                 return ret;
 155
 156         ret = key_a->iftype - key_b->iftype;
 157         if (ret != 0)
 158                 return ret;
 159
 160         return 0;
 161 }
 162
 163 static void __rstns_tree_value_free(gpointer data)
 164 {
 165         stc_rstn_value_s *value = (stc_rstn_value_s *)data;
 166
 167         FREE(value);
 168 }
 169
 170 static void __rstns_tree_key_free(gpointer data)
 171 {
 172         stc_rstn_key_s *key = (stc_rstn_key_s *)data;
 173
 174         FREE(key->app_id);
 175         FREE(key->ifname);
 176         FREE(key->imsi);
 177         FREE(key);
 178 }
 179
 180 static gboolean __processes_tree_foreach_print(gpointer key, gpointer value,
 181                                                gpointer data)
 182 {
 183         stc_process_key_s *proc_key = (stc_process_key_s *)key;
 184         stc_process_value_s *proc_value = (stc_process_value_s *)value;
 185
 186         STC_LOGD("Process entry => PID [%d], Ground state [%d]",
 187                  proc_key->pid, proc_value->ground);
 188         return FALSE;
 189 }
 190
 191 static void __processes_tree_printall(GTree *processes)
 192 {
 193         g_tree_foreach(processes, __processes_tree_foreach_print, NULL);
 194 }
 195
 196 static gboolean __apps_tree_foreach_print(gpointer key, gpointer value,
 197                                           gpointer data)
 198 {
 199         stc_app_key_s *app_key = (stc_app_key_s *)key;
 200         stc_app_value_s *app_value = (stc_app_value_s *)value;
 201
 202         STC_LOGD("Application info => Pkg ID [%s], App ID [%s],"
 203                  " Type [%d], classid [%d],"
 204                  " counter [ in (%lld), out (%lld)]",
 205                  app_key->pkg_id, app_key->app_id,
 206                  app_value->type, app_value->classid,
 207                  app_value->data_usage.in_bytes, app_value->data_usage.out_bytes);
 208
 209         __processes_tree_printall(app_value->processes);
 210         return FALSE;
 211 }
 212
 213 static void __apps_tree_printall(void)
 214 {
 215         g_tree_foreach(g_system->apps, __apps_tree_foreach_print, NULL);
 216 }
 217
 218 static gboolean __apps_tree_foreach_remove_pid(gpointer key, gpointer value,
 219                                                gpointer data)
 220 {
 221         remove_pid_context_s *context = (remove_pid_context_s *)data;
 222         stc_app_value_s *app_value = (stc_app_value_s *)value;
 223
 224         if (!g_tree_remove(app_value->processes, context->proc_key)) {
 225                 STC_LOGD("key not found");
 226                 return FALSE;
 227         }
 228
 229         context->entry_removed = TRUE;
 230         context->app_key = (stc_app_key_s *)key;
 231
 232         return TRUE;
 233 }
 234
 235 static stc_app_value_s * __application_lookup(GTree *apps,
 236                                               const stc_app_key_s *key)
 237 {
 238         stc_app_value_s *lookup;
 239
 240         ret_value_msg_if(apps == NULL, NULL, "apps is null!");
 241
 242         lookup = g_tree_lookup(apps, key);
 243
 244         return lookup;
 245 }
 246
 247 static stc_process_value_s * __process_lookup(GTree *processes,
 248                                               const stc_process_key_s *key)
 249 {
 250         stc_process_value_s *lookup;
 251
 252         ret_value_msg_if(processes == NULL, NULL, "processes is null!");
 253
 254         lookup = g_tree_lookup(processes, key);
 255
 256         return lookup;
 257 }
 258
 259 static gboolean __processes_tree_check_empty(gpointer key, gpointer value,
 260                                              gpointer data)
 261 {
 262         guint *pid_count = (guint *)data;
 263         (*pid_count)++;
 264         return TRUE;
 265 }
 266
 267 static gboolean __add_application_monitor(gpointer key, gpointer value,
 268                                           gpointer data)
 269 {
 270         stc_app_value_s *app_value = (stc_app_value_s *)value;
 271         default_connection_s *connection = (default_connection_s *)data;
 272         stc_s *stc = stc_get_manager();
 273
 274         if (stc && connection && connection->ifname) {
 275                 struct nfacct_rule counter;
 276
 277                 if (!stc->carg) {
 278                         stc->carg = MALLOC0(counter_arg_s, 1);
 279                         stc->carg->sock = stc_monitor_get_counter_socket();
 280                 }
 281
 282                 memset(&counter, 0, sizeof(struct nfacct_rule));
 283
 284                 counter.carg = stc->carg;
 285                 counter.classid = app_value->classid;
 286                 counter.intend = NFACCT_COUNTER;
 287                 g_strlcpy(counter.ifname, connection->ifname, MAX_IFACE_LENGTH);
 288
 289                 __add_iptables_in(&counter);
 290                 __add_iptables_out(&counter);
 291         }
 292
 293         return FALSE;
 294 }
 295
 296 static gboolean __remove_application_monitor(gpointer key, gpointer value,
 297                                              gpointer data)
 298 {
 299         stc_app_value_s *app_value = (stc_app_value_s *)value;
 300         default_connection_s *connection = (default_connection_s *)data;
 301         stc_s *stc = stc_get_manager();
 302
 303         if (stc && connection && connection->ifname) {
 304                 struct nfacct_rule counter;
 305
 306                 if (!stc->carg) {
 307                         stc->carg = MALLOC0(counter_arg_s, 1);
 308                         stc->carg->sock = stc_monitor_get_counter_socket();
 309                 }
 310
 311                 memset(&counter, 0, sizeof(struct nfacct_rule));
 312
 313                 counter.carg = stc->carg;
 314                 counter.classid = app_value->classid;
 315                 counter.intend = NFACCT_COUNTER;
 316                 g_strlcpy(counter.ifname, connection->ifname, MAX_IFACE_LENGTH);
 317
 318                 __del_iptables_in(&counter);
 319                 __del_iptables_out(&counter);
 320         }
 321
 322         return FALSE;
 323 }
 324
 325 static void __print_rstn(stc_rstn_key_s *rstn_key, stc_rstn_value_s *rstn_value)
 326 {
 327         STC_LOGI("rstn info => rstn_id [%llu], "
 328                  "app_id [%s], classid [%lu], ifname [%s], "
 329                  "iftype [%d], rst_state [%d], "
 330                  "limit [ in (%lld), out (%lld)], "
 331                  "warn_limit [ in (%lld), out (%lld)], "
 332                  "counter [ in (%lld), out (%lld)], "
 333                  "roaming [%d], imsi [%s]",
 334                  rstn_value->restriction_id,
 335                  rstn_key->app_id, rstn_value->classid , rstn_key->ifname,
 336                  rstn_key->iftype, rstn_value->rst_state,
 337                  rstn_value->limit.in_bytes, rstn_value->limit.out_bytes,
 338                  rstn_value->warn_limit.in_bytes,
 339                  rstn_value->warn_limit.out_bytes,
 340                  rstn_value->counter.in_bytes, rstn_value->counter.out_bytes,
 341                  rstn_key->roaming, rstn_key->imsi);
 342 }
 343
 344 static void __process_restriction(enum traffic_restriction_type rst_type,
 345                                   stc_rstn_key_s *rstn_key,
 346                                   stc_rstn_value_s *rstn_value, void *data)
 347 {
 348         stc_data_counter_s effective_limit, effective_warn_limit;
 349         default_connection_s *old_connection = (default_connection_s *)data;
 350         default_connection_s *connection = NULL;
 351
 352         if (old_connection != NULL)
 353                 connection = old_connection;
 354         else
 355                 connection = stc_get_default_connection();
 356
 357         /* no default ifname */
 358         if (connection->ifname == NULL)
 359                 return;
 360
 361         /* rstn not applicable for this interface */
 362         if (rstn_key->ifname != NULL && g_strcmp0("", rstn_key->ifname) != 0 &&
 363             g_strcmp0(connection->ifname, rstn_key->ifname) != 0)
 364                 return;
 365
 366         /* classid is invalid */
 367         if (rstn_value->classid == STC_UNKNOWN_CLASSID)
 368                 return;
 369
 370         effective_limit.out_bytes = rstn_value->limit.out_bytes;
 371         effective_limit.in_bytes = rstn_value->limit.in_bytes;
 372         effective_warn_limit.out_bytes = rstn_value->warn_limit.out_bytes;
 373         effective_warn_limit.in_bytes = rstn_value->warn_limit.in_bytes;
 374
 375         if (rst_type == RST_SET) {
 376                 /* TODO: Change this to runtime memory */
 377                 table_counters_info info;
 378
 379                 memset(&info, 0, sizeof(table_counters_info));
 380                 table_counters_get(rstn_value->restriction_id, &info);
 381
 382                 effective_limit.out_bytes -= info.sent_bytes;
 383                 effective_limit.in_bytes -= info.rcv_bytes;
 384                 effective_warn_limit.out_bytes -= info.sent_bytes;
 385                 effective_warn_limit.in_bytes -= info.rcv_bytes;
 386
 387                 if (effective_limit.in_bytes < 0) {
 388                         effective_limit.in_bytes = 0;
 389                         rstn_value->in_limit_reached = TRUE;
 390                 }
 391
 392                 if (effective_limit.out_bytes < 0) {
 393                         effective_limit.out_bytes = 0;
 394                         rstn_value->out_limit_reached = TRUE;
 395                 }
 396
 397                 if (effective_warn_limit.in_bytes < 0)
 398                         effective_warn_limit.in_bytes = 0;
 399
 400                 if (effective_warn_limit.out_bytes < 0)
 401                         effective_warn_limit.out_bytes = 0;
 402                  STC_LOGD("datausage [in: %lld, out: %lld]",
 403                           info.rcv_bytes, info.sent_bytes);
 404         }
 405
 406         STC_LOGD("rstn_id [%llu], effective limit [in: %lld, out: %lld], "
 407                  "effective warn limit [in: %lld, out: %lld], "
 408                  "datausage [in: %lld, out: %lld]",
 409                  rstn_value->restriction_id,
 410                  effective_limit.in_bytes, effective_limit.out_bytes,
 411                  effective_warn_limit.in_bytes, effective_warn_limit.out_bytes);
 412
 413         send_net_restriction(rst_type,
 414                              rstn_value->classid,
 415                              0 /*quota_id*/,
 416                              connection->type,
 417                              effective_limit.out_bytes,
 418                              effective_limit.in_bytes,
 419                              effective_warn_limit.out_bytes,
 420                              effective_warn_limit.in_bytes,
 421                              connection->ifname);
 422         switch (rst_type) {
 423         case RST_SET:
 424                 rstn_value->rst_state = STC_RESTRICTION_ACTIVATED;
 425                 rstn_value->in_limit_reached = FALSE;
 426                 rstn_value->out_limit_reached = FALSE;
 427                 break;
 428         case RST_EXCLUDE:
 429                 ;//Do Nothing
 430                 break;
 431         case RST_UNSET:
 432                 rstn_value->rst_state = STC_RESTRICTION_REMOVED;
 433                 rstn_value->in_limit_reached = FALSE;
 434                 rstn_value->out_limit_reached = FALSE;
 435                 break;
 436         default:
 437                 ;//Do Nothing
 438         }
 439 }
 440
 441 static gboolean __remove_rstns_foreach_application(gpointer key,
 442                                                    gpointer value,
 443                                                    gpointer data)
 444 {
 445         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 446         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 447         gchar *app_id = (gchar *)data;
 448
 449         /* rstn rule is not for applications */
 450         if (rstn_key->app_id == NULL)
 451                 goto out;
 452
 453         /* rstn rule is not for this application */
 454         if (g_strcmp0(rstn_key->app_id, app_id) != 0)
 455                 goto out;
 456
 457         /* rstn rule is already removed */
 458         if (rstn_value->rst_state == STC_RESTRICTION_REMOVED)
 459                 goto out;
 460
 461         /* remove restriction from system */
 462         __process_restriction(RST_UNSET, rstn_key, rstn_value, data);
 463
 464         __print_rstn(rstn_key, rstn_value);
 465 out:
 466         return FALSE;
 467 }
 468
 469 static void __remove_rstns_for_application(gchar *app_id)
 470 {
 471         g_tree_foreach(g_system->rstns, __remove_rstns_foreach_application,
 472                        app_id);
 473 }
 474
 475 static stc_error_e __application_remove_if_empty(const stc_app_key_s *app_key)
 476 {
 477         stc_error_e ret = STC_ERROR_NONE;
 478         guint pid_count = 0;
 479         stc_app_value_s *lookup;
 480
 481         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
 482
 483         lookup = __application_lookup(g_system->apps, app_key);
 484         if (!lookup) {
 485                 STC_LOGE("app_key not found");
 486                 return STC_ERROR_NO_DATA;
 487         }
 488
 489         g_tree_foreach(lookup->processes, __processes_tree_check_empty,
 490                        &pid_count);
 491
 492         if (!pid_count) {
 493                 /* remove nfacct rule for this classid */
 494                 __remove_application_monitor((gpointer) app_key, lookup,
 495                                              stc_get_default_connection());
 496                 __remove_rstns_for_application(app_key->app_id);
 497         }
 498
 499         if (!g_tree_remove(g_system->apps, app_key)) {
 500                 ret = STC_ERROR_NO_DATA;
 501                 STC_LOGE("key not found");
 502         }
 503
 504         return ret;
 505 }
 506
 507 static stc_error_e __close_contr_sock(stc_system_s *system)
 508 {
 509         ret_value_msg_if(system == NULL, STC_ERROR_INVALID_PARAMETER, "invalid parameter");
 510
 511         /* close netlink socket for updating kernel counters */
 512         if (g_system->contr_sock != -1) {
 513                 close(g_system->contr_sock);
 514                 g_system->contr_sock = -1;
 515         }
 516
 517         if (g_system->contr_gsource_id != 0) {
 518                 g_source_remove(g_system->contr_gsource_id);
 519                 g_system->contr_gsource_id = 0;
 520         }
 521
 522         return STC_ERROR_NONE;
 523 }
 524
 525 static gboolean __rstn_counter_update_foreach_classid(gpointer key,
 526                                                       gpointer value,
 527                                                       gpointer data)
 528 {
 529         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 530         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 531         classid_bytes_context_s *context = (classid_bytes_context_s *)data;
 532
 533         if (context->counter->intend != NFACCT_COUNTER)
 534                 goto try_next_callback;
 535
 536         if (rstn_value->classid != context->counter->classid)
 537                 goto try_next_callback;
 538
 539         if (rstn_value->in_limit_reached == TRUE) {
 540                 context->in_limit_reached = TRUE;
 541                 goto try_next_callback;
 542         }
 543
 544         if (rstn_value->out_limit_reached == TRUE) {
 545                 context->out_limit_reached = TRUE;
 546                 goto try_next_callback;
 547         }
 548
 549         switch (context->counter->iotype) {
 550         case NFACCT_COUNTER_IN:
 551                 rstn_value->counter.in_bytes += context->bytes;
 552
 553                 if (rstn_value->counter.in_bytes >= rstn_value->warn_limit.in_bytes
 554                     && rstn_value->warn_limit_crossed_notified == FALSE) {
 555                         gboolean rv = FALSE;
 556                         stc_s *stc = (stc_s *)stc_get_manager();
 557                         ret_value_msg_if(stc == NULL, FALSE, "failed to get stc data");
 558
 559                         rv = stc_manager_dbus_emit_signal(stc->connection,
 560                                                           STC_DBUS_SERVICE_RESTRICTION_PATH,
 561                                                           STC_DBUS_INTERFACE_RESTRICTION,
 562                                                           "WarnThresholdCrossed",
 563                                                           g_variant_new("(s)", rstn_key->app_id));
 564                         if (rv == TRUE)
 565                                 rstn_value->warn_limit_crossed_notified = TRUE;
 566                 }
 567
 568                 /* block immediately */
 569                 if (rstn_value->counter.in_bytes >= rstn_value->limit.in_bytes) {
 570                         __del_iptables_in(context->counter);
 571                         __add_iptables_in(context->counter);
 572                         rstn_value->in_limit_reached = TRUE;
 573                         //context->in_limit_reached = TRUE;
 574                 }
 575
 576                 g_system->rstns_tree_updated = TRUE;
 577                 __print_rstn(rstn_key, rstn_value);
 578                 break;
 579         case NFACCT_COUNTER_OUT:
 580                 rstn_value->counter.out_bytes += context->bytes;
 581
 582                 if (rstn_value->counter.out_bytes >= rstn_value->limit.out_bytes
 583                     && rstn_value->warn_limit_crossed_notified == FALSE) {
 584                         gboolean rv = FALSE;
 585                         stc_s *stc = (stc_s *)stc_get_manager();
 586                         ret_value_msg_if(stc == NULL, FALSE, "failed to get stc data");
 587
 588                         rv = stc_manager_dbus_emit_signal(stc->connection,
 589                                                           STC_DBUS_SERVICE_RESTRICTION_PATH,
 590                                                           STC_DBUS_INTERFACE_RESTRICTION,
 591                                                           "WarnThresholdCrossed",
 592                                                           g_variant_new("(s)", rstn_key->app_id));
 593                         if (rv == TRUE)
 594                                 rstn_value->warn_limit_crossed_notified = TRUE;
 595                 }
 596
 597                 /* block immediately */
 598                 if (rstn_value->counter.out_bytes >= rstn_value->limit.out_bytes) {
 599                         __del_iptables_out(context->counter);
 600                         __add_iptables_out(context->counter);
 601                         rstn_value->out_limit_reached = TRUE;
 602                         //context->out_limit_reached = TRUE;
 603                 }
 604
 605                 g_system->rstns_tree_updated = TRUE;
 606                 __print_rstn(rstn_key, rstn_value);
 607                 break;
 608         default:
 609                 STC_LOGE("unknown iotype");
 610         }
 611
 612
 613 try_next_callback:
 614         return FALSE;
 615 }
 616
 617 static gboolean __update_app_statistics(gpointer key, gpointer value,
 618                                         gpointer data)
 619 {
 620         stc_app_key_s *app_key = (stc_app_key_s *)key;
 621         stc_app_value_s *app_value = (stc_app_value_s *)value;
 622         time_t *touch_time = (time_t *)data;
 623         stc_db_classid_iftype_key stat_key;
 624         stc_db_app_stats stat;
 625         char *default_ifname = stc_default_connection_get_ifname();
 626
 627         memset(&stat_key, 0, sizeof(stc_db_classid_iftype_key));
 628         memset(&stat, 0 , sizeof(stc_db_app_stats));
 629
 630         stat_key.classid = app_value->classid;
 631         stat_key.iftype = stc_default_connection_get_type();
 632         if (STC_IFACE_DATACALL == stat_key.iftype)
 633                 stat_key.imsi = g_strdup("unknown");
 634         else
 635                 stat_key.imsi = g_strdup("noneimsi");
 636         g_strlcpy(stat_key.ifname, default_ifname, MAX_IFACE_LENGTH);
 637
 638         stat.app_id = g_strdup(app_key->app_id);
 639         stat.snd_count = app_value->counter.out_bytes;
 640         stat.rcv_count = app_value->counter.in_bytes;
 641         stat.delta_snd = 0;
 642         stat.delta_rcv = 0;
 643         stat.is_roaming = stc_default_connection_get_roaming();
 644         stat.ground = STC_APP_STATE_UNKNOWN;
 645
 646         table_statistics_insert(&stat_key, &stat, *touch_time);
 647
 648         app_value->counter.out_bytes = 0;
 649         app_value->counter.in_bytes = 0;
 650
 651         FREE(stat.app_id);
 652         FREE(stat_key.imsi);
 653         FREE(default_ifname);
 654
 655         return FALSE;
 656 }
 657
 658 static gboolean __flush_apps_stats_to_database(gpointer user_data)
 659 {
 660         time_t current_time = time(0);
 661
 662         if (g_system->apps_tree_updated == FALSE)
 663                 return G_SOURCE_REMOVE;
 664
 665         g_system->apps_tree_updated = FALSE;
 666
 667         if (g_system->apps)
 668                 g_tree_foreach(g_system->apps,
 669                                __update_app_statistics,
 670                                &current_time);
 671
 672         STC_LOGI("Flushed app stats to database");
 673         return G_SOURCE_REMOVE;
 674 }
 675
 676 static gboolean __update_counter_statistics(gpointer key, gpointer value,
 677                                             gpointer data)
 678 {
 679         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 680         table_counters_info info = {
 681                 .restriction_id = rstn_value->restriction_id,
 682                 .sent_bytes = rstn_value->counter.out_bytes,
 683                 .rcv_bytes = rstn_value->counter.in_bytes
 684         };
 685
 686         table_counters_update_counters(&info);
 687
 688         return FALSE;
 689 }
 690
 691 static gboolean __flush_rstns_counter_to_database(gpointer user_data)
 692 {
 693         time_t current_time = time(0);
 694
 695         if (g_system->rstns_tree_updated == FALSE)
 696                 return G_SOURCE_REMOVE;
 697
 698         g_system->rstns_tree_updated = FALSE;
 699
 700         if (g_system->rstns)
 701                 g_tree_foreach(g_system->rstns,
 702                                __update_counter_statistics,
 703                                &current_time);
 704
 705         STC_LOGI("Flushed rstns counters to database");
 706         return G_SOURCE_REMOVE;
 707 }
 708
 709 static gboolean __apps_counter_update_foreach_classid(gpointer key,
 710                                                       gpointer value,
 711                                                       gpointer data)
 712 {
 713         stc_app_key_s *app_key = (stc_app_key_s *)key;
 714         stc_app_value_s *app_value = (stc_app_value_s *)value;
 715         classid_bytes_context_s *context = (classid_bytes_context_s *)data;
 716
 717         if (context->counter->intend != NFACCT_COUNTER)
 718                 goto try_next_callback;
 719
 720         if (app_value->classid != context->counter->classid)
 721                 goto try_next_callback;
 722
 723         switch (context->counter->iotype) {
 724         case NFACCT_COUNTER_IN:
 725                 app_value->data_usage.in_bytes += context->bytes;
 726                 app_value->counter.in_bytes = context->bytes;
 727                 g_system->apps_tree_updated = TRUE;
 728
 729                 __apps_tree_foreach_print(app_key, app_value, NULL);
 730                 break;
 731         case NFACCT_COUNTER_OUT:
 732                 app_value->data_usage.out_bytes += context->bytes;
 733                 app_value->counter.out_bytes = context->bytes;
 734                 g_system->apps_tree_updated = TRUE;
 735
 736                 __apps_tree_foreach_print(app_key, app_value, NULL);
 737                 break;
 738         default:
 739                 STC_LOGE("unknown iotype");
 740         }
 741
 742 try_next_callback:
 743         return FALSE;
 744 }
 745
 746 static void __fill_nfacct_result(char *cnt_name, int64_t bytes,
 747                                  struct counter_arg *carg)
 748 {
 749         struct nfacct_rule counter = {
 750                 .carg = carg,
 751                 .name = {0},
 752                 .ifname = {0},
 753                 0
 754         };
 755
 756         classid_bytes_context_s context = {
 757                 .counter = &counter,
 758                 .bytes = bytes,
 759                 .in_limit_reached = FALSE,
 760                 .out_limit_reached = FALSE
 761         };
 762
 763         STC_LOGD("cnt_name %s", cnt_name);
 764
 765         if (!recreate_counter_by_name(cnt_name, &counter)) {
 766                 STC_LOGE("Can't parse counter name %s", cnt_name);
 767                 return;
 768         }
 769
 770         STC_LOGI("classid %lu, iftype %u, iotype %d, intend %d, ifname %s, bytes %lld",
 771                  context.counter->classid, context.counter->iftype,
 772                  context.counter->iotype, context.counter->intend,
 773                  context.counter->ifname, context.bytes);
 774
 775         if (g_system->rstns)
 776                 g_tree_foreach(g_system->rstns,
 777                                __rstn_counter_update_foreach_classid,
 778                                &context);
 779
 780         if (g_system->apps)
 781                 g_tree_foreach(g_system->apps,
 782                                __apps_counter_update_foreach_classid,
 783                                &context);
 784 }
 785
 786 static int __fill_counters(struct rtattr *attr_list[__NFACCT_MAX],
 787                            void *user_data)
 788 {
 789         struct counter_arg *carg = user_data;
 790         char *cnt_name = (char *)RTA_DATA(attr_list[NFACCT_NAME]);
 791         if (carg->initiate) {
 792                 /**
 793                  * TODO: this will be used when daemon starts to update existing
 794                  * counter data if present.
 795                  *
 796                  populate_counters(cnt_name, carg);
 797                  */
 798         } else {
 799                 int64_t *bytes_p =
 800                         (int64_t *)RTA_DATA(attr_list[NFACCT_BYTES]);
 801                 int bytes = be64toh(*bytes_p);
 802                 if (bytes) {
 803                         ++carg->serialized_counters;
 804                         __fill_nfacct_result(cnt_name, bytes, carg);
 805                 }
 806         }
 807
 808         return 0;
 809 }
 810
 811 static int __post_fill_counters(void *user_data)
 812 {
 813         struct counter_arg *carg = user_data;
 814
 815         if (carg->initiate)
 816                 carg->initiate = 0;
 817
 818         return 0;
 819 }
 820
 821 static void __process_network_counter(struct genl *ans,
 822                                       struct counter_arg *carg)
 823 {
 824         struct netlink_serialization_params ser_params = {
 825                 .carg = carg,
 826                 .ans = ans,
 827                 .eval_attr = __fill_counters,
 828                 .post_eval_attr = __post_fill_counters,
 829         };
 830
 831         netlink_serialization_command *netlink =
 832                 netlink_create_command(&ser_params);
 833         if (!netlink) {
 834                 STC_LOGE("Can not create command");
 835                 return;
 836         }
 837
 838         netlink->deserialize_answer(&(netlink->params));
 839 }
 840
 841 static gboolean __process_contr_reply(GIOChannel *source,
 842                                       GIOCondition condition,
 843                                       gpointer user_data)
 844 {
 845         int sock = g_io_channel_unix_get_fd(source);
 846         struct genl ans;
 847         int ret;
 848         stc_s *stc = stc_get_manager();
 849
 850         if ((condition & G_IO_ERR) ||
 851             (condition & G_IO_HUP) ||
 852             (condition & G_IO_NVAL)) {
 853                 /* G_IO_ERR/G_IO_HUP/G_IO_NVAL received */
 854
 855                 __close_contr_sock(g_system);
 856                 return FALSE;
 857         }
 858
 859         if (stc == NULL) {
 860                 STC_LOGE("Can't get stc data");
 861                 goto out;
 862         }
 863
 864         ret = read_netlink(sock,
 865                            &ans, sizeof(struct genl));
 866         STC_LOGD("Counter data received ret [%d]", ret);
 867         if (ret == 0)
 868                 goto out;
 869
 870         stc->carg->ans_len = ret;
 871         __process_network_counter(&ans, stc->carg);
 872
 873         g_idle_add(__flush_apps_stats_to_database, NULL);
 874         g_idle_add(__flush_rstns_counter_to_database, NULL);
 875 out:
 876         return TRUE;
 877 }
 878
 879 static gboolean __update_contr_cb(void *user_data)
 880 {
 881         /* Here we just sent command, answer we receive in another callback */
 882         stc_s *stc = stc_get_manager();
 883         ret_value_msg_if(stc == NULL, STC_ERROR_FAIL, "Can't get stc data");
 884         if (!stc->carg) {
 885                 stc->carg = MALLOC0(counter_arg_s, 1);
 886                 stc->carg->sock = stc_monitor_get_counter_socket();
 887         }
 888
 889         STC_LOGD("Get all counters");
 890         nfacct_send_get_all(stc->carg);
 891
 892         /* we need to continue the timer */
 893         return TRUE;
 894 }
 895 #if 0
 896 static gboolean __rstn_tree_foreach_print(gpointer key, gpointer value,
 897                                           gpointer data)
 898 {
 899         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 900         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 901
 902         __print_rstn(rstn_key, rstn_value);
 903         return FALSE;
 904 }
 905
 906 static void __rstn_tree_printall(void)
 907 {
 908         g_tree_foreach(g_system->rstns, __rstn_tree_foreach_print, NULL);
 909 }
 910 #endif
 911 static stc_rstn_value_s * __rstn_lookup(GTree *rstns_tree,
 912                                         const stc_rstn_key_s *key)
 913 {
 914         stc_rstn_value_s *lookup;
 915
 916         ret_value_msg_if(rstns_tree == NULL, NULL, "rstns_tree is null!");
 917
 918         lookup = g_tree_lookup(rstns_tree, key);
 919
 920         return lookup;
 921 }
 922
 923 static gboolean __remove_restriction(gpointer key, gpointer value,
 924                                      gpointer data)
 925 {
 926         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 927         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 928
 929         /* rstn rule is already removed */
 930         if (rstn_value->rst_state == STC_RESTRICTION_REMOVED)
 931                 return FALSE;
 932
 933         __process_restriction(RST_UNSET, rstn_key, rstn_value, data);
 934         __print_rstn(rstn_key, rstn_value);
 935         return FALSE;
 936 }
 937
 938 static gboolean __add_restriction_debug(gpointer key, gpointer value,
 939                                         gpointer data)
 940 {
 941         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 942         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 943
 944         /* rstn rule is activated */
 945         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
 946                 return FALSE;
 947
 948         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
 949                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
 950         else
 951                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
 952
 953         __print_rstn(rstn_key, rstn_value);
 954
 955         return FALSE;
 956 }
 957
 958 static gboolean __add_restriction(gpointer key, gpointer value, gpointer data)
 959 {
 960         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 961         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 962
 963         /* rstn rule is activated */
 964         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
 965                 return FALSE;
 966
 967         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
 968                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
 969         else
 970                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
 971
 972         return FALSE;
 973 }
 974
 975 static stc_error_e __rstn_tree_remove(stc_rstn_key_s *key)
 976 {
 977         stc_rstn_value_s *lookup_value;
 978
 979         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
 980
 981         lookup_value = __rstn_lookup(g_system->rstns, key);
 982         if (!lookup_value) {
 983                 STC_LOGE("key not found");
 984                 return STC_ERROR_NO_DATA;
 985         }
 986
 987         __remove_restriction(key, lookup_value, NULL);
 988
 989         /* remove counter also */
 990         table_counters_delete(lookup_value->restriction_id);
 991
 992         if (!g_tree_remove(g_system->rstns, key)) {
 993                 STC_LOGD("key not found");
 994                 return STC_ERROR_NO_DATA;
 995         }
 996
 997         return STC_ERROR_NONE;
 998 }
 999
1000 static stc_error_e __rstn_tree_add(stc_rstn_key_s *key,
1001                                    stc_rstn_value_s *value, gboolean debug)
1002 {
1003         stc_rstn_value_s *rstn_value;
1004
1005         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1006
1007         rstn_value = __rstn_lookup(g_system->rstns, key);
1008         if (!rstn_value) {
1009                 stc_rstn_key_s *rstn_key = MALLOC0(stc_rstn_key_s, 1);
1010                 if (!rstn_key) {
1011                         STC_LOGE("rstn_key allocation failed");
1012                         return STC_ERROR_OUT_OF_MEMORY;
1013                 }
1014
1015                 rstn_value = MALLOC0(stc_rstn_value_s, 1);
1016                 if (!rstn_value) {
1017                         STC_LOGE("rstn_value allocation failed");
1018                         FREE(rstn_key);
1019                         return STC_ERROR_OUT_OF_MEMORY;
1020                 }
1021
1022                 rstn_key->app_id = g_strdup(key->app_id);
1023                 rstn_key->ifname = g_strdup(key->ifname);
1024                 rstn_key->imsi = g_strdup(key->imsi);
1025                 rstn_key->iftype = key->iftype;
1026                 rstn_key->roaming = key->roaming;
1027
1028                 g_tree_insert(g_system->rstns, rstn_key, rstn_value);
1029         }
1030
1031         rstn_value->restriction_id = value->restriction_id;
1032         rstn_value->rst_state = value->rst_state;
1033         rstn_value->classid = value->classid;
1034         rstn_value->limit.in_bytes = value->limit.in_bytes;
1035         rstn_value->limit.out_bytes = value->limit.out_bytes;
1036         rstn_value->warn_limit.in_bytes = value->warn_limit.in_bytes;
1037         rstn_value->warn_limit.out_bytes = value->warn_limit.out_bytes;
1038         rstn_value->counter.in_bytes = 0;
1039         rstn_value->counter.out_bytes = 0;
1040         rstn_value->warn_limit_crossed_notified = FALSE;
1041
1042         if (debug == TRUE)
1043                 __add_restriction_debug(key, rstn_value, NULL);
1044         else
1045                 __add_restriction(key, rstn_value, NULL);
1046
1047         return STC_ERROR_NONE;
1048 }
1049
1050 static stc_cb_ret_e __insert_restriction_cb(const table_restrictions_info *info,
1051                                             void *user_data)
1052 {
1053         stc_cb_ret_e ret = STC_CONTINUE;
1054
1055         stc_rstn_key_s key;
1056         stc_rstn_value_s value;
1057
1058         memset(&key, 0, sizeof(stc_rstn_key_s));
1059         memset(&value, 0, sizeof(stc_rstn_value_s));
1060
1061         key.app_id = g_strdup(info->app_id);
1062         key.ifname = g_strdup(info->ifname);
1063         key.imsi = g_strdup(info->imsi);
1064         key.iftype = info->iftype;
1065         key.roaming = info->roaming;
1066
1067         value.rst_state = info->rst_state;
1068         value.restriction_id = info->restriction_id;
1069
1070         if (value.rst_state != STC_RESTRICTION_EXCLUDED)
1071                 value.classid = get_classid_by_app_id(info->app_id ?
1072                                                       info->app_id :
1073                                                       STC_ALL_APP, TRUE);
1074         else
1075                 value.classid = STC_UNKNOWN_CLASSID;
1076
1077         value.limit.in_bytes = info->rcv_limit;
1078         value.limit.out_bytes = info->send_limit;
1079         value.warn_limit.in_bytes = info->rcv_warn_limit;
1080         value.warn_limit.out_bytes = info->send_warn_limit;
1081
1082         if (__rstn_tree_add(&key, &value, FALSE) != STC_ERROR_NONE)
1083                 ret = STC_CANCEL;
1084
1085         FREE(key.app_id);
1086         FREE(key.ifname);
1087         FREE(key.imsi);
1088         return ret;
1089 }
1090
1091 static void __fill_restritions_list(void)
1092 {
1093         table_restrictions_foreach(__insert_restriction_cb, NULL);
1094         //__rstn_tree_printall();
1095 }
1096
1097 static gboolean __add_rstn_foreach_application(gpointer key,
1098                                                gpointer value,
1099                                                gpointer data)
1100 {
1101         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1102         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1103         gchar *app_id = (gchar *)data;
1104
1105         /* rstn rule is not for applications */
1106         if (rstn_key->app_id == NULL)
1107                 goto out;
1108
1109         /* rstn rule is not for this application */
1110         if (g_strcmp0(rstn_key->app_id, app_id) != 0)
1111                 goto out;
1112
1113         /* rstn rule is already applied */
1114         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1115                 goto out;
1116
1117         /* add restriction to system */
1118         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1119                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1120         else
1121                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1122
1123         __print_rstn(rstn_key, rstn_value);
1124 out:
1125         return FALSE;
1126 }
1127
1128 static void __add_rstns_for_application(gchar *app_id)
1129 {
1130         g_tree_foreach(g_system->rstns, __add_rstn_foreach_application,
1131                        app_id);
1132 }
1133
1134 /* used only for (STC_ALL_APP/STC_BACKGROUND_APP_NAME) */
1135 static void __stc_monitor_add_application_by_app_id(const char *app_id)
1136 {
1137         stc_app_key_s app_key;
1138         stc_app_value_s app_value;
1139
1140         if (app_id == NULL)
1141                 return;
1142
1143         memset(&app_key, 0, sizeof(stc_app_key_s));
1144         memset(&app_value, 0, sizeof(stc_app_value_s));
1145
1146         app_key.pkg_id = g_strdup(app_id);
1147         app_key.app_id = g_strdup(app_id);
1148
1149         app_value.type = STC_APP_TYPE_NONE;
1150         app_value.processes = NULL;
1151         app_value.counter.in_bytes = 0;
1152         app_value.counter.out_bytes = 0;
1153
1154         stc_monitor_application_add(app_key, app_value);
1155
1156         FREE(app_key.pkg_id);
1157         FREE(app_key.app_id);
1158
1159         __apps_tree_printall();
1160 }
1161
1162 stc_error_e stc_monitor_init(void)
1163 {
1164         stc_system_s *system = MALLOC0(stc_system_s, 1);
1165         GIOChannel *gio = NULL;
1166
1167         ret_value_msg_if(system == NULL, STC_ERROR_OUT_OF_MEMORY, "stc_system_s malloc fail!");
1168
1169         /* creating monitored application tree */
1170         system->apps = g_tree_new_full(__apps_tree_key_compare, NULL,
1171                                        __apps_tree_key_free,
1172                                        __apps_tree_value_free);
1173
1174         system->rstns = g_tree_new_full(__rstns_tree_key_compare, NULL,
1175                                         __rstns_tree_key_free,
1176                                         __rstns_tree_value_free);
1177
1178         /* create netlink socket for updating kernel counters */
1179         system->contr_sock = create_netlink(NETLINK_NETFILTER, 0);
1180         if (!(system->contr_sock)) {
1181                 STC_LOGE("failed to open socket");
1182                 FREE(system);
1183                 return STC_ERROR_FAIL;
1184         }
1185
1186         gio = g_io_channel_unix_new(system->contr_sock);
1187         system->contr_gsource_id =
1188                 g_io_add_watch(gio, G_IO_IN | G_IO_ERR | G_IO_HUP,
1189                                (GIOFunc) __process_contr_reply,
1190                                NULL);
1191         g_io_channel_unref(gio);
1192
1193         g_system = system;
1194
1195         /* create entry for STC_ALL_APP */
1196         __stc_monitor_add_application_by_app_id(STC_ALL_APP);
1197
1198         /* create entry for STC_BACKGROUND_APP_NAME */
1199         __stc_monitor_add_application_by_app_id(STC_BACKGROUND_APP_NAME);
1200
1201         /* create background cgroup */
1202         g_system->background_pids = NULL;
1203         create_net_background_cgroup(g_system->background_pids);
1204
1205         /* creating restriction rules tree */
1206         __update_contr_cb(NULL);
1207
1208         /* registering periodic kernel counters update callback */
1209         g_system->contr_timer_id = g_timeout_add_seconds(CONTR_TIMER_INTERVAL,
1210                                                          __update_contr_cb,
1211                                                          NULL);
1212         if (g_system->contr_timer_id == 0) {
1213                 STC_LOGE("Failed to register kernel counters update timer");
1214                 __close_contr_sock(g_system);
1215                 return STC_ERROR_FAIL;
1216         }
1217
1218         __fill_restritions_list();
1219
1220         return STC_ERROR_NONE;
1221 }
1222
1223 stc_error_e stc_monitor_deinit(void)
1224 {
1225         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1226
1227         /* close netlink socket for updating kernel counters */
1228         __close_contr_sock(g_system);
1229
1230         /* remove kernel counters update timer */
1231         if (g_system->contr_timer_id > 0) {
1232                 g_source_remove(g_system->contr_timer_id);
1233                 g_system->contr_timer_id = 0;
1234         }
1235
1236         /* free background pid list */
1237         g_slist_free(g_system->background_pids);
1238         g_system->background_pids = NULL;
1239
1240         /* destroy monitored application tree */
1241         g_tree_destroy(g_system->apps);
1242         g_system->apps = NULL;
1243
1244         /* destroy restriction rules tree */
1245         g_tree_destroy(g_system->rstns);
1246         g_system->rstns = NULL;
1247
1248         FREE(g_system);
1249
1250         return STC_ERROR_NONE;
1251 }
1252
1253 stc_error_e stc_monitor_application_add(const stc_app_key_s app_key,
1254                                         const stc_app_value_s app_value)
1255 {
1256         stc_error_e ret = STC_ERROR_NONE;
1257         stc_app_key_s *key;
1258         stc_app_value_s *value;
1259         stc_app_value_s *lookup;
1260
1261         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1262
1263         lookup = __application_lookup(g_system->apps, &app_key);
1264         if (lookup) {
1265                 STC_LOGD("app_key already present");
1266                 return STC_ERROR_NONE;
1267         }
1268
1269         key = MALLOC0(stc_app_key_s, 1);
1270         if (!key) {
1271                 STC_LOGE("key allocation failed");
1272                 return STC_ERROR_OUT_OF_MEMORY;
1273         }
1274
1275         value = MALLOC0(stc_app_value_s, 1);
1276         if (!value) {
1277                 STC_LOGE("value allocation failed");
1278                 FREE(key);
1279                 return STC_ERROR_OUT_OF_MEMORY;
1280         }
1281
1282         key->app_id = g_strdup(app_key.app_id);
1283         key->pkg_id = g_strdup(app_key.pkg_id);
1284
1285         value->type = app_value.type;
1286         value->counter.in_bytes = app_value.counter.in_bytes;
1287         value->counter.out_bytes = app_value.counter.out_bytes;
1288
1289         value->processes = g_tree_new_full(__processes_tree_key_compare, NULL,
1290                                            __processes_tree_key_free,
1291                                            __processes_tree_value_free);
1292
1293         /* create cgroup and update classid */
1294         value->classid = get_classid_by_app_id(app_key.app_id, TRUE);
1295
1296         g_tree_insert(g_system->apps, key, value);
1297
1298         /* add nfacct rule for this classid */
1299         __add_application_monitor(key, value, stc_get_default_connection());
1300         __add_rstns_for_application(app_key.app_id);
1301
1302         return ret;
1303 }
1304
1305 stc_error_e stc_monitor_process_add(const stc_app_key_s app_key,
1306                                     const stc_process_key_s proc_key,
1307                                     const stc_process_value_s proc_value)
1308 {
1309         stc_error_e ret = STC_ERROR_NONE;
1310         stc_app_value_s *app_lookup;
1311         stc_process_key_s *key;
1312         stc_process_value_s *value;
1313         stc_process_value_s *proc_lookup;
1314
1315         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1316
1317         app_lookup = __application_lookup(g_system->apps, &app_key);
1318         if (!app_lookup) {
1319                 STC_LOGD("app_key not found");
1320                 return STC_ERROR_FAIL;
1321         }
1322
1323         proc_lookup = __process_lookup(app_lookup->processes, &proc_key);
1324         if (proc_lookup) {
1325                 STC_LOGD("proc_key already present");
1326                 return STC_ERROR_NONE;
1327         }
1328
1329         key = MALLOC0(stc_process_key_s, 1);
1330         if (!key) {
1331                 STC_LOGE("key allocation failed");
1332                 return STC_ERROR_OUT_OF_MEMORY;
1333         }
1334
1335         value = MALLOC0(stc_process_value_s, 1);
1336         if (!value) {
1337                 STC_LOGE("value allocation failed");
1338                 FREE(key);
1339                 return STC_ERROR_OUT_OF_MEMORY;
1340         }
1341
1342         key->pid = proc_key.pid;
1343
1344         value->ground = proc_value.ground;
1345
1346         g_tree_insert(app_lookup->processes, key, value);
1347
1348         /* add pid to application cgroup */
1349         place_pids_to_net_cgroup(proc_key.pid, app_key.app_id);
1350
1351         /* add pid to background cgroup if gound state is background */
1352         if (proc_value.ground == STC_APP_STATE_BACKGROUND)
1353                 add_pid_to_background_cgroup(proc_key.pid);
1354
1355         return ret;
1356 }
1357
1358 stc_error_e stc_monitor_process_remove(pid_t pid)
1359 {
1360         stc_error_e ret = STC_ERROR_NONE;
1361         stc_process_key_s proc_key = {
1362                 .pid = pid
1363         };
1364
1365         remove_pid_context_s context = {
1366                 .app_key = NULL,
1367                 .proc_key = &proc_key,
1368                 .entry_removed = FALSE,
1369         };
1370
1371         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1372
1373         /* remove pid from background cgroup */
1374         remove_pid_from_background_cgroup(pid);
1375
1376         g_tree_foreach(g_system->apps, __apps_tree_foreach_remove_pid,
1377                        &context);
1378
1379         if (context.entry_removed)
1380                 __application_remove_if_empty(context.app_key);
1381
1382         return ret;
1383 }
1384
1385 stc_error_e stc_monitor_process_update_ground(const stc_app_key_s app_key,
1386                                               const stc_process_key_s proc_key,
1387                                               stc_app_state_e ground)
1388 {
1389         stc_error_e ret = STC_ERROR_NONE;
1390         stc_app_value_s *app_lookup;
1391         stc_process_value_s *proc_lookup;
1392
1393         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1394
1395         app_lookup = __application_lookup(g_system->apps, &app_key);
1396         if (!app_lookup) {
1397                 STC_LOGD("app_key not found");
1398                 return STC_ERROR_FAIL;
1399         }
1400
1401         proc_lookup = __process_lookup(app_lookup->processes, &proc_key);
1402         if (!proc_lookup) {
1403                 STC_LOGD("proc_key not found");
1404                 return STC_ERROR_FAIL;
1405         }
1406
1407         if (proc_lookup->ground != ground)
1408                 proc_lookup->ground = ground;
1409
1410         if (ground == STC_APP_STATE_BACKGROUND)
1411                 add_pid_to_background_cgroup(proc_key.pid);
1412         else
1413                 place_pids_to_net_cgroup(proc_key.pid, app_key.app_id);
1414
1415         return ret;
1416 }
1417
1418 void stc_monitor_update_rstn_by_default_connection(void *data)
1419 {
1420         static default_connection_s old_connection;
1421         default_connection_s *new_connection = (default_connection_s *)data;
1422
1423         if (old_connection.path != NULL) {
1424                 if (g_system->apps)
1425                         g_tree_foreach(g_system->apps,
1426                                        __remove_application_monitor,
1427                                        (gpointer)&old_connection);
1428
1429                 if (g_system->rstns)
1430                         g_tree_foreach(g_system->rstns,
1431                                        __remove_restriction,
1432                                        (gpointer)&old_connection);
1433         }
1434
1435         FREE(old_connection.path);
1436         FREE(old_connection.ifname);
1437         old_connection.type = 0;
1438         old_connection.roaming = 0;
1439
1440         if (new_connection != NULL && new_connection->path != NULL) {
1441                 if (g_system->apps)
1442                         g_tree_foreach(g_system->apps,
1443                                        __add_application_monitor,
1444                                        (gpointer)new_connection);
1445
1446                 if (g_system->rstns)
1447                         g_tree_foreach(g_system->rstns, __add_restriction,
1448                                        NULL);
1449
1450                 old_connection.path = g_strdup(new_connection->path);
1451                 old_connection.ifname = g_strdup(new_connection->ifname);
1452                 old_connection.type = new_connection->type;
1453                 old_connection.roaming = new_connection->roaming;
1454         }
1455 }
1456
1457 stc_error_e stc_monitor_rstns_tree_add(const table_restrictions_info *info)
1458 {
1459         stc_error_e ret;
1460
1461         stc_rstn_key_s key;
1462         stc_rstn_value_s value;
1463
1464         memset(&key, 0, sizeof(stc_rstn_key_s));
1465         memset(&value, 0, sizeof(stc_rstn_value_s));
1466
1467         key.app_id = g_strdup(info->app_id);
1468         key.ifname = g_strdup(info->ifname);
1469         key.imsi = g_strdup(info->imsi);
1470         key.iftype = info->iftype;
1471         key.roaming = info->roaming;
1472
1473         value.rst_state = info->rst_state;
1474         value.restriction_id = info->restriction_id;
1475
1476         if (value.rst_state != STC_RESTRICTION_EXCLUDED)
1477                 value.classid = get_classid_by_app_id(info->app_id ?
1478                                                       info->app_id :
1479                                                       STC_ALL_APP, TRUE);
1480         else
1481                 value.classid = STC_UNKNOWN_CLASSID;
1482
1483         value.limit.in_bytes = info->rcv_limit;
1484         value.limit.out_bytes = info->send_limit;
1485         value.warn_limit.in_bytes = info->rcv_warn_limit;
1486         value.warn_limit.out_bytes = info->send_warn_limit;
1487
1488         ret = __rstn_tree_add(&key, &value, TRUE);
1489
1490         FREE(key.app_id);
1491         FREE(key.ifname);
1492         FREE(key.imsi);
1493         return ret;
1494 }
1495
1496 stc_error_e stc_monitor_rstns_tree_remove(const table_restrictions_info *info)
1497 {
1498         stc_error_e ret;
1499
1500         stc_rstn_key_s key = {
1501                 .app_id = g_strdup(info->app_id),
1502                 .ifname = g_strdup(info->ifname),
1503                 .imsi = g_strdup(info->imsi),
1504                 .iftype = info->iftype,
1505                 .roaming = info->roaming,
1506         };
1507
1508         ret = __rstn_tree_remove(&key);
1509
1510         FREE(key.app_id);
1511         FREE(key.ifname);
1512         FREE(key.imsi);
1513         return ret;
1514 }
1515
1516 int stc_monitor_get_counter_socket(void)
1517 {
1518         return g_system->contr_sock;
1519 }