src/monitor/stc-monitor.c

   1 /*
   2  * Copyright (c) 2016 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include <linux/netlink.h>
  18
  19 #include "stc-default-connection.h"
  20 #include "helper-nl.h"
  21 #include "helper-nfacct-rule.h"
  22 #include "helper-net-cls.h"
  23 #include "helper-cgroup.h"
  24 #include "counter.h"
  25 #include "table-statistics.h"
  26 #include "table-counters.h"
  27 #include "stc-monitor.h"
  28 #include "stc-manager-plugin.h"
  29
  30 #define MAX_INT_LENGTH 128
  31
  32 typedef struct {
  33         stc_app_key_s *app_key;
  34         stc_process_key_s *proc_key;
  35         gboolean entry_removed;
  36 } remove_pid_context_s;
  37
  38 typedef struct {
  39         struct nfacct_rule *counter;
  40         int64_t bytes;
  41         gboolean data_limit_reached;
  42 } classid_bytes_context_s;
  43
  44 static stc_system_s *g_system = NULL;
  45
  46 static nfacct_rule_jump __get_jump_by_intend(struct nfacct_rule *counter)
  47 {
  48         if (counter->intend == NFACCT_WARN)
  49                 return NFACCT_JUMP_ACCEPT;
  50         else if (counter->intend == NFACCT_BLOCK)
  51                 return NFACCT_JUMP_REJECT;
  52
  53         return NFACCT_JUMP_UNKNOWN;
  54 }
  55
  56 static stc_error_e __add_iptables_in(struct nfacct_rule *counter)
  57 {
  58         return produce_net_rule(counter, 0, 0,
  59                 NFACCT_ACTION_INSERT, __get_jump_by_intend(counter),
  60                 NFACCT_COUNTER_IN);
  61 }
  62
  63 static stc_error_e __add_iptables_out(struct nfacct_rule *counter)
  64 {
  65         return produce_net_rule(counter, 0, 0,
  66                 NFACCT_ACTION_INSERT, __get_jump_by_intend(counter),
  67                 NFACCT_COUNTER_OUT);
  68 }
  69
  70 static stc_error_e __del_iptables_in(struct nfacct_rule *counter)
  71 {
  72         return produce_net_rule(counter, 0, 0,
  73                 NFACCT_ACTION_DELETE, __get_jump_by_intend(counter),
  74                 NFACCT_COUNTER_IN);
  75 }
  76
  77 static stc_error_e __del_iptables_out(struct nfacct_rule *counter)
  78 {
  79         return produce_net_rule(counter, 0, 0,
  80                 NFACCT_ACTION_DELETE, __get_jump_by_intend(counter),
  81                 NFACCT_COUNTER_OUT);
  82 }
  83
  84 static int __processes_tree_key_compare(gconstpointer a, gconstpointer b,
  85                                         gpointer UNUSED user_data)
  86 {
  87         stc_process_key_s *key_a = (stc_process_key_s *)a;
  88         stc_process_key_s *key_b = (stc_process_key_s *)b;
  89
  90         return key_a->pid - key_b->pid;
  91 }
  92
  93 static void __processes_tree_value_free(gpointer data)
  94 {
  95         stc_process_value_s *value = (stc_process_value_s *)data;
  96
  97         FREE(value);
  98 }
  99
 100 static void __processes_tree_key_free(gpointer data)
 101 {
 102         stc_process_key_s *key = (stc_process_key_s *)data;
 103
 104         FREE(key);
 105 }
 106
 107 static int __apps_tree_key_compare(gconstpointer a, gconstpointer b,
 108                                    gpointer UNUSED user_data)
 109 {
 110         stc_app_key_s *key_a = (stc_app_key_s *)a;
 111         stc_app_key_s *key_b = (stc_app_key_s *)b;
 112         gint ret;
 113
 114         ret = g_strcmp0(key_a->pkg_id, key_b->pkg_id);
 115         if (ret)
 116                 return ret;
 117
 118         return g_strcmp0(key_a->app_id, key_b->app_id);
 119 }
 120
 121 static void __apps_tree_value_free(gpointer data)
 122 {
 123         stc_app_value_s *value = (stc_app_value_s *)data;
 124
 125         g_tree_destroy(value->processes);
 126         value->processes = NULL;
 127
 128         FREE(value);
 129 }
 130
 131 static void __apps_tree_key_free(gpointer data)
 132 {
 133         stc_app_key_s *key = (stc_app_key_s *)data;
 134
 135         g_free(key->pkg_id);
 136         g_free(key->app_id);
 137         FREE(key);
 138 }
 139
 140 static int __rstns_tree_key_compare(gconstpointer a, gconstpointer b,
 141                                     gpointer UNUSED user_data)
 142 {
 143         stc_rstn_key_s *key_a = (stc_rstn_key_s *)a;
 144         stc_rstn_key_s *key_b = (stc_rstn_key_s *)b;
 145         int ret;
 146
 147         ret = g_strcmp0(key_a->app_id, key_b->app_id);
 148         if (ret != 0)
 149                 return ret;
 150
 151         ret = g_strcmp0(key_a->ifname, key_b->ifname);
 152         if (ret != 0)
 153                 return ret;
 154
 155         ret = g_strcmp0(key_a->imsi, key_b->imsi);
 156         if (ret != 0)
 157                 return ret;
 158
 159         ret = key_a->iftype - key_b->iftype;
 160         if (ret != 0)
 161                 return ret;
 162
 163         return 0;
 164 }
 165
 166 static void __rstns_tree_value_free(gpointer data)
 167 {
 168         stc_rstn_value_s *value = (stc_rstn_value_s *)data;
 169
 170         FREE(value);
 171 }
 172
 173 static void __rstns_tree_key_free(gpointer data)
 174 {
 175         stc_rstn_key_s *key = (stc_rstn_key_s *)data;
 176
 177         FREE(key->app_id);
 178         FREE(key->ifname);
 179         FREE(key->imsi);
 180         FREE(key);
 181 }
 182
 183 static gboolean __processes_tree_foreach_print(gpointer key, gpointer value,
 184                                                gpointer data)
 185 {
 186         stc_process_key_s *proc_key = (stc_process_key_s *)key;
 187         stc_process_value_s *proc_value = (stc_process_value_s *)value;
 188
 189         STC_LOGD("Process entry => PID [%d], Ground state [%d]",
 190                  proc_key->pid, proc_value->ground);
 191         return FALSE;
 192 }
 193
 194 static void __processes_tree_printall(GTree *processes)
 195 {
 196         g_tree_foreach(processes, __processes_tree_foreach_print, NULL);
 197 }
 198
 199 static gboolean __apps_tree_foreach_print(gpointer key, gpointer value,
 200                                           gpointer data)
 201 {
 202         stc_app_key_s *app_key = (stc_app_key_s *)key;
 203         stc_app_value_s *app_value = (stc_app_value_s *)value;
 204
 205         STC_LOGD("Application info => Pkg ID [%s], App ID [%s],"
 206                  " Type [%d], classid [%d],"
 207                  " counter [ in (%lld), out (%lld)]",
 208                  app_key->pkg_id, app_key->app_id,
 209                  app_value->type, app_value->classid,
 210                  app_value->data_usage.in_bytes, app_value->data_usage.out_bytes);
 211
 212         __processes_tree_printall(app_value->processes);
 213         return FALSE;
 214 }
 215
 216 #if 0
 217 static void __apps_tree_printall(void)
 218 {
 219         g_tree_foreach(g_system->apps, __apps_tree_foreach_print, NULL);
 220 }
 221 #endif
 222
 223 static gboolean __apps_tree_foreach_remove_pid(gpointer key, gpointer value,
 224                                                gpointer data)
 225 {
 226         remove_pid_context_s *context = (remove_pid_context_s *)data;
 227         stc_app_value_s *app_value = (stc_app_value_s *)value;
 228
 229         if (!g_tree_remove(app_value->processes, context->proc_key)) {
 230                 STC_LOGD("key not found");
 231                 return FALSE;
 232         }
 233
 234         context->entry_removed = TRUE;
 235         context->app_key = (stc_app_key_s *)key;
 236
 237         return TRUE;
 238 }
 239
 240 static stc_app_value_s * __application_lookup(GTree *apps,
 241                                               const stc_app_key_s *key)
 242 {
 243         stc_app_value_s *lookup;
 244
 245         ret_value_msg_if(apps == NULL, NULL, "apps is null!");
 246
 247         lookup = g_tree_lookup(apps, key);
 248
 249         return lookup;
 250 }
 251
 252 static stc_process_value_s * __process_lookup(GTree *processes,
 253                                               const stc_process_key_s *key)
 254 {
 255         stc_process_value_s *lookup;
 256
 257         ret_value_msg_if(processes == NULL, NULL, "processes is null!");
 258
 259         lookup = g_tree_lookup(processes, key);
 260
 261         return lookup;
 262 }
 263
 264 static gboolean __processes_tree_check_empty(gpointer key, gpointer value,
 265                                              gpointer data)
 266 {
 267         guint *pid_count = (guint *)data;
 268         (*pid_count)++;
 269         return TRUE;
 270 }
 271
 272 static gboolean __add_application_monitor(gpointer key, gpointer value,
 273                                           gpointer data)
 274 {
 275         stc_app_value_s *app_value = (stc_app_value_s *)value;
 276         default_connection_s *connection = (default_connection_s *)data;
 277         stc_s *stc = stc_get_manager();
 278
 279         if (app_value->classid == STC_TOTAL_DATACALL_CLASSID ||
 280                 app_value->classid == STC_TOTAL_WIFI_CLASSID ||
 281                 app_value->classid == STC_TOTAL_BLUETOOTH_CLASSID)
 282                 return FALSE;
 283
 284         if (stc && connection && connection->ifname) {
 285                 struct nfacct_rule counter;
 286
 287                 if (!stc->carg) {
 288                         stc->carg = MALLOC0(counter_arg_s, 1);
 289                         stc->carg->sock = stc_monitor_get_counter_socket();
 290                 }
 291
 292                 memset(&counter, 0, sizeof(struct nfacct_rule));
 293
 294                 counter.carg = stc->carg;
 295                 counter.classid = app_value->classid;
 296                 counter.intend = NFACCT_COUNTER;
 297                 counter.iftype = connection->type;
 298                 g_strlcpy(counter.ifname, connection->ifname, MAX_IFACE_LENGTH);
 299
 300                 __add_iptables_in(&counter);
 301                 __add_iptables_out(&counter);
 302         }
 303
 304         return FALSE;
 305 }
 306
 307 static gboolean __remove_application_monitor(gpointer key, gpointer value,
 308                                              gpointer data)
 309 {
 310         stc_app_value_s *app_value = (stc_app_value_s *)value;
 311         default_connection_s *connection = (default_connection_s *)data;
 312         stc_s *stc = stc_get_manager();
 313
 314         if (stc && connection && connection->ifname) {
 315                 struct nfacct_rule counter;
 316
 317                 if (!stc->carg) {
 318                         stc->carg = MALLOC0(counter_arg_s, 1);
 319                         stc->carg->sock = stc_monitor_get_counter_socket();
 320                 }
 321
 322                 memset(&counter, 0, sizeof(struct nfacct_rule));
 323
 324                 counter.carg = stc->carg;
 325                 counter.classid = app_value->classid;
 326                 counter.intend = NFACCT_COUNTER;
 327                 counter.iftype = connection->type;
 328                 g_strlcpy(counter.ifname, connection->ifname, MAX_IFACE_LENGTH);
 329
 330                 __del_iptables_in(&counter);
 331                 __del_iptables_out(&counter);
 332         }
 333
 334         return FALSE;
 335 }
 336
 337 static void __print_rstn(stc_rstn_key_s *rstn_key, stc_rstn_value_s *rstn_value)
 338 {
 339         STC_LOGI("rstn info => rstn_id [%llu], "
 340                  "app_id [%s], classid [%lu], ifname [%s], "
 341                  "iftype [%d], rst_state [%d], "
 342                  "limit [ (%lld) bytes], "
 343                  "warn_limit [ (%lld) bytes], "
 344                  "counter [ (%lld) bytes], "
 345                  "roaming [%d], imsi [%s]",
 346                  rstn_value->restriction_id,
 347                  rstn_key->app_id, rstn_value->classid , rstn_key->ifname,
 348                  rstn_key->iftype, rstn_value->rst_state,
 349                  rstn_value->data_limit,
 350                  rstn_value->data_warn_limit,
 351                  rstn_value->data_counter,
 352                  rstn_key->roaming, rstn_key->imsi);
 353 }
 354
 355 static void __process_restriction(enum traffic_restriction_type rst_type,
 356                                   stc_rstn_key_s *rstn_key,
 357                                   stc_rstn_value_s *rstn_value, void *data)
 358 {
 359         int64_t effective_data_limit, effective_data_warn_limit;
 360         default_connection_s *old_connection = (default_connection_s *)data;
 361         default_connection_s *connection = NULL;
 362
 363         if (old_connection != NULL)
 364                 connection = old_connection;
 365         else
 366                 connection = stc_get_default_connection();
 367
 368         /* no default ifname */
 369         if (connection->ifname == NULL)
 370                 return;
 371
 372         /* rstn not applicable for this interface */
 373         if (rstn_key->ifname != NULL && g_strcmp0("", rstn_key->ifname) != 0 &&
 374             g_strcmp0(connection->ifname, rstn_key->ifname) != 0)
 375                 return;
 376
 377         /* classid is invalid */
 378         if (rstn_value->classid == STC_UNKNOWN_CLASSID)
 379                 return;
 380
 381         effective_data_limit = rstn_value->data_limit;
 382         effective_data_warn_limit = rstn_value->data_warn_limit;
 383
 384         if (rst_type == RST_SET) {
 385                 /* TODO: Change this to runtime memory */
 386                 table_counters_info info;
 387
 388                 memset(&info, 0, sizeof(table_counters_info));
 389                 table_counters_get(rstn_value->restriction_id, &info);
 390
 391                 effective_data_limit -= info.data_counter;
 392                 effective_data_warn_limit -= info.data_counter;
 393
 394                 if (effective_data_limit < 0) {
 395                         effective_data_limit = 0;
 396                         rstn_value->data_limit_reached = TRUE;
 397                 }
 398
 399                 if (effective_data_warn_limit < 0)
 400                         effective_data_warn_limit = 0;
 401
 402                 STC_LOGD("datausage [%lld] bytes", info.data_counter);
 403         }
 404
 405         STC_LOGD("rstn_id [%llu], effective_data_limit [%lld] bytes, "
 406                  "effective_data_warn_limit [%lld] bytes",
 407                  rstn_value->restriction_id, effective_data_limit,
 408                  effective_data_warn_limit);
 409
 410         switch (rst_type) {
 411         case RST_SET:
 412                 if (effective_data_limit <= 0) {
 413                         char *default_ifname = stc_default_connection_get_ifname();
 414                         struct nfacct_rule counter;
 415                         stc_s *stc = stc_get_manager();
 416
 417                         if (!stc->carg) {
 418                                 stc->carg = MALLOC0(counter_arg_s, 1);
 419                                 stc->carg->sock =
 420                                         stc_monitor_get_counter_socket();
 421                         }
 422
 423                         counter.carg = stc->carg;
 424                         counter.classid = rstn_value->classid;
 425                         counter.intend = NFACCT_BLOCK;
 426                         counter.iftype = rstn_key->iftype;
 427                         g_strlcpy(counter.ifname, default_ifname,
 428                                   MAX_IFACE_LENGTH);
 429
 430                         generate_counter_name(&counter);
 431                         g_free(default_ifname);
 432
 433                         /* iptables rule */
 434                         __add_iptables_in(&counter);
 435                         __add_iptables_out(&counter);
 436                 }
 437
 438                 rstn_value->rst_state = STC_RESTRICTION_ACTIVATED;
 439                 rstn_value->data_limit_reached = FALSE;
 440                 break;
 441         case RST_EXCLUDE:
 442                 ;//Do Nothing
 443                 break;
 444         case RST_UNSET:
 445                 {
 446                         char *default_ifname = stc_default_connection_get_ifname();
 447                         struct nfacct_rule counter;
 448                         stc_s *stc = stc_get_manager();
 449
 450                         if (!stc->carg) {
 451                                 stc->carg = MALLOC0(counter_arg_s, 1);
 452                                 stc->carg->sock =
 453                                         stc_monitor_get_counter_socket();
 454                         }
 455
 456                         counter.carg = stc->carg;
 457                         counter.classid = rstn_value->classid;
 458                         counter.intend = NFACCT_BLOCK;
 459                         counter.iftype = rstn_key->iftype;
 460                         g_strlcpy(counter.ifname, default_ifname,
 461                                   MAX_IFACE_LENGTH);
 462
 463                         generate_counter_name(&counter);
 464                         g_free(default_ifname);
 465
 466                         /* iptables rule */
 467                         __del_iptables_in(&counter);
 468                         __del_iptables_out(&counter);
 469
 470                         rstn_value->rst_state = STC_RESTRICTION_REMOVED;
 471                         rstn_value->data_limit_reached = FALSE;
 472                 }
 473                 break;
 474         default:
 475                 ;//Do Nothing
 476         }
 477 }
 478
 479 static gboolean __remove_rstns_foreach_application(gpointer key,
 480                                                    gpointer value,
 481                                                    gpointer data)
 482 {
 483         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 484         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 485         gchar *app_id = (gchar *)data;
 486
 487         /* rstn rule is not for applications */
 488         if (rstn_key->app_id == NULL)
 489                 goto out;
 490
 491         /* rstn rule is not for this application */
 492         if (g_strcmp0(rstn_key->app_id, app_id) != 0)
 493                 goto out;
 494
 495         /* rstn rule is already removed */
 496         if (rstn_value->rst_state == STC_RESTRICTION_REMOVED)
 497                 goto out;
 498
 499         /* remove restriction from system */
 500         __process_restriction(RST_UNSET, rstn_key, rstn_value, data);
 501
 502         __print_rstn(rstn_key, rstn_value);
 503 out:
 504         return FALSE;
 505 }
 506
 507 static void __remove_rstns_for_application(gchar *app_id)
 508 {
 509         g_tree_foreach(g_system->rstns, __remove_rstns_foreach_application,
 510                        app_id);
 511 }
 512
 513 static stc_error_e __application_remove_if_empty(const stc_app_key_s *app_key)
 514 {
 515         stc_error_e ret = STC_ERROR_NONE;
 516         guint pid_count = 0;
 517         stc_app_value_s *lookup;
 518
 519         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
 520
 521         lookup = __application_lookup(g_system->apps, app_key);
 522         if (!lookup) {
 523                 STC_LOGE("app_key not found");
 524                 return STC_ERROR_NO_DATA;
 525         }
 526
 527         g_tree_foreach(lookup->processes, __processes_tree_check_empty,
 528                        &pid_count);
 529
 530         if (!pid_count) {
 531                 /* remove nfacct rule for this classid */
 532                 __remove_application_monitor((gpointer) app_key, lookup,
 533                                              stc_get_default_connection());
 534                 __remove_rstns_for_application(app_key->app_id);
 535         }
 536
 537         if (!g_tree_remove(g_system->apps, app_key)) {
 538                 ret = STC_ERROR_NO_DATA;
 539                 STC_LOGE("key not found");
 540         }
 541
 542         return ret;
 543 }
 544
 545 static stc_error_e __close_contr_sock(stc_system_s *system)
 546 {
 547         ret_value_msg_if(system == NULL, STC_ERROR_INVALID_PARAMETER, "invalid parameter");
 548
 549         /* close netlink socket for updating kernel counters */
 550         if (g_system->contr_sock != -1) {
 551                 close(g_system->contr_sock);
 552                 g_system->contr_sock = -1;
 553         }
 554
 555         if (g_system->contr_gsource_id != 0) {
 556                 g_source_remove(g_system->contr_gsource_id);
 557                 g_system->contr_gsource_id = 0;
 558         }
 559
 560         return STC_ERROR_NONE;
 561 }
 562
 563 static gboolean __rstn_counter_update(stc_rstn_key_s *rstn_key,
 564                                                       stc_rstn_value_s *rstn_value,
 565                                                       classid_bytes_context_s *context)
 566 {
 567         switch (context->counter->iotype) {
 568         case NFACCT_COUNTER_IN:
 569         case NFACCT_COUNTER_OUT:
 570                 rstn_value->data_counter += context->bytes;
 571
 572                 if (rstn_value->data_counter >= rstn_value->data_warn_limit &&
 573                     rstn_value->warn_limit_crossed_notified == FALSE) {
 574
 575                         gboolean rv = FALSE;
 576                         char iftype[MAX_INT_LENGTH];
 577                         char byte[MAX_INT_LENGTH];
 578                         stc_s *stc = (stc_s *)stc_get_manager();
 579                         ret_value_msg_if(stc == NULL, FALSE, "failed to get stc data");
 580
 581                         /* emit signal */
 582                         rv = stc_manager_dbus_emit_signal(stc->connection,
 583                                                           STC_DBUS_SERVICE_RESTRICTION_PATH,
 584                                                           STC_DBUS_INTERFACE_RESTRICTION,
 585                                                           "WarnThresholdCrossed",
 586                                                           g_variant_new("(si)", rstn_key->app_id, rstn_key->iftype));
 587                         if (rv == TRUE)
 588                                 rstn_value->warn_limit_crossed_notified = TRUE;
 589
 590                         snprintf(iftype, MAX_INT_LENGTH, "%d", rstn_key->iftype);
 591                         snprintf(byte, MAX_INT_LENGTH, "%lld", rstn_value->data_warn_limit);
 592                         stc_send_warn_message_to_net_popup("warn threshold crossed",
 593                                                            "warning_noti",
 594                                                            rstn_key->app_id,
 595                                                            iftype, byte);
 596                 }
 597
 598                 if (rstn_value->data_counter >= rstn_value->data_limit &&
 599                     rstn_value->rstn_limit_crossed_notified == FALSE) {
 600
 601                         gboolean rv = FALSE;
 602                         char iftype[MAX_INT_LENGTH];
 603                         char byte[MAX_INT_LENGTH];
 604                         stc_s *stc = (stc_s *)stc_get_manager();
 605                         ret_value_msg_if(stc == NULL, FALSE, "failed to get stc data");
 606
 607                         /* block immediately */
 608                         context->counter->intend = NFACCT_BLOCK;
 609                         __del_iptables_in(context->counter);
 610                         __del_iptables_out(context->counter);
 611                         __add_iptables_in(context->counter);
 612                         __add_iptables_out(context->counter);
 613                         context->counter->intend = NFACCT_COUNTER;
 614
 615                         rstn_value->data_limit_reached = TRUE;
 616
 617                         /* emit signal */
 618                         rv = stc_manager_dbus_emit_signal(stc->connection,
 619                                                           STC_DBUS_SERVICE_RESTRICTION_PATH,
 620                                                           STC_DBUS_INTERFACE_RESTRICTION,
 621                                                           "RestrictionThresholdCrossed",
 622                                                           g_variant_new("(si)", rstn_key->app_id, rstn_key->iftype));
 623                         if (rv == TRUE)
 624                                 rstn_value->rstn_limit_crossed_notified = TRUE;
 625
 626                         snprintf(iftype, MAX_INT_LENGTH, "%d", rstn_key->iftype);
 627                         snprintf(byte, MAX_INT_LENGTH, "%lld", rstn_value->data_limit);
 628                         stc_send_restriction_message_to_net_popup("restriction threshold crossed",
 629                                                                   "restriction_noti", rstn_key->app_id,
 630                                                                   iftype, byte);
 631                 }
 632
 633                 g_system->rstns_tree_updated = TRUE;
 634                 __print_rstn(rstn_key, rstn_value);
 635                 break;
 636         default:
 637                 STC_LOGE("unknown iotype");
 638         }
 639
 640         return FALSE;
 641 }
 642
 643 static gboolean __interface_rstn_counter_update(stc_rstn_key_s *rstn_key,
 644                                                       stc_rstn_value_s *rstn_value,
 645                                                       classid_bytes_context_s *context)
 646 {
 647         if ((rstn_value->classid == STC_TOTAL_DATACALL_CLASSID &&
 648                 context->counter->iftype == STC_IFACE_DATACALL) ||
 649                 (rstn_value->classid == STC_TOTAL_WIFI_CLASSID &&
 650                 context->counter->iftype == STC_IFACE_WIFI) ||
 651                 (rstn_value->classid == STC_TOTAL_BLUETOOTH_CLASSID &&
 652                 context->counter->iftype == STC_IFACE_BLUETOOTH)) {
 653                 context->counter->classid = rstn_value->classid;
 654                 return __rstn_counter_update(rstn_key, rstn_value, context);
 655         }
 656
 657         return FALSE;
 658 }
 659
 660 static gboolean __rstn_counter_update_foreach_classid(gpointer key,
 661                                                       gpointer value,
 662                                                       gpointer data)
 663 {
 664         gboolean rv = FALSE;
 665         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 666         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 667         classid_bytes_context_s *context = (classid_bytes_context_s *)data;
 668         uint32_t classid;
 669
 670         if (context->counter->intend != NFACCT_COUNTER)
 671                 goto try_next_callback;
 672
 673         if (rstn_value->data_limit_reached == TRUE) {
 674                 context->data_limit_reached = TRUE;
 675                 goto try_next_callback;
 676         }
 677
 678         classid = context->counter->classid;
 679         rv = __interface_rstn_counter_update(rstn_key, rstn_value, context);
 680
 681         context->counter->classid = classid;
 682         if (rstn_value->classid != context->counter->classid)
 683                 goto try_next_callback;
 684
 685         rv = __rstn_counter_update(rstn_key, rstn_value, context);
 686
 687 try_next_callback:
 688         return rv;
 689 }
 690
 691 static gboolean __update_app_statistics(gpointer key, gpointer value,
 692                                         gpointer data)
 693 {
 694         stc_app_key_s *app_key = (stc_app_key_s *)key;
 695         stc_app_value_s *app_value = (stc_app_value_s *)value;
 696         time_t *touch_time = (time_t *)data;
 697         stc_db_classid_iftype_key stat_key;
 698         stc_db_app_stats stat;
 699         char *default_ifname = stc_default_connection_get_ifname();
 700
 701         memset(&stat_key, 0, sizeof(stc_db_classid_iftype_key));
 702         memset(&stat, 0 , sizeof(stc_db_app_stats));
 703
 704         stat_key.classid = app_value->classid;
 705         stat_key.iftype = stc_default_connection_get_type();
 706         if (STC_IFACE_DATACALL == stat_key.iftype)
 707                 stat_key.imsi = g_strdup("unknown");
 708         else
 709                 stat_key.imsi = g_strdup("noneimsi");
 710         g_strlcpy(stat_key.ifname, default_ifname, MAX_IFACE_LENGTH);
 711
 712         stat.app_id = g_strdup(app_key->app_id);
 713         stat.snd_count = app_value->counter.out_bytes;
 714         stat.rcv_count = app_value->counter.in_bytes;
 715         stat.is_roaming = stc_default_connection_get_roaming();
 716         stat.ground = STC_APP_STATE_UNKNOWN;
 717
 718         table_statistics_insert(&stat_key, &stat, *touch_time);
 719
 720         app_value->counter.out_bytes = 0;
 721         app_value->counter.in_bytes = 0;
 722
 723         FREE(stat.app_id);
 724         FREE(stat_key.imsi);
 725         FREE(default_ifname);
 726
 727         return FALSE;
 728 }
 729
 730 static gboolean __flush_apps_stats_to_database(gpointer user_data)
 731 {
 732         time_t current_time = time(0);
 733
 734         if (g_system->apps_tree_updated == FALSE)
 735                 return G_SOURCE_REMOVE;
 736
 737         g_system->apps_tree_updated = FALSE;
 738
 739         if (g_system->apps)
 740                 g_tree_foreach(g_system->apps,
 741                                __update_app_statistics,
 742                                &current_time);
 743
 744         STC_LOGI("Flushed app stats to database");
 745         return G_SOURCE_REMOVE;
 746 }
 747
 748 static gboolean __update_counter_statistics(gpointer key, gpointer value,
 749                                             gpointer data)
 750 {
 751         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 752         table_counters_info info = {
 753                 .restriction_id = rstn_value->restriction_id,
 754                 .data_counter = rstn_value->data_counter
 755         };
 756
 757         table_counters_update_counters(&info);
 758
 759         return FALSE;
 760 }
 761
 762 static gboolean __flush_rstns_counter_to_database(gpointer user_data)
 763 {
 764         time_t current_time = time(0);
 765
 766         if (g_system->rstns_tree_updated == FALSE)
 767                 return G_SOURCE_REMOVE;
 768
 769         g_system->rstns_tree_updated = FALSE;
 770
 771         if (g_system->rstns)
 772                 g_tree_foreach(g_system->rstns,
 773                                __update_counter_statistics,
 774                                &current_time);
 775
 776         STC_LOGI("Flushed rstns counters to database");
 777         return G_SOURCE_REMOVE;
 778 }
 779
 780 static void __app_counter_update(stc_app_key_s *app_key,
 781                                                         stc_app_value_s *app_value,
 782                                                         classid_bytes_context_s *context)
 783 {
 784         switch (context->counter->iotype) {
 785         case NFACCT_COUNTER_IN:
 786                 app_value->data_usage.in_bytes += context->bytes;
 787                 app_value->counter.in_bytes = context->bytes;
 788                 g_system->apps_tree_updated = TRUE;
 789
 790                 __apps_tree_foreach_print(app_key, app_value, NULL);
 791                 break;
 792         case NFACCT_COUNTER_OUT:
 793                 app_value->data_usage.out_bytes += context->bytes;
 794                 app_value->counter.out_bytes = context->bytes;
 795                 g_system->apps_tree_updated = TRUE;
 796
 797                 __apps_tree_foreach_print(app_key, app_value, NULL);
 798                 break;
 799         default:
 800                 STC_LOGE("unknown iotype");
 801         }
 802 }
 803
 804 static void __interface_counter_update(stc_app_key_s *app_key,
 805                                                         stc_app_value_s *app_value,
 806                                                         classid_bytes_context_s *context)
 807 {
 808         if ((app_value->classid == STC_TOTAL_DATACALL_CLASSID &&
 809                 context->counter->iftype == STC_IFACE_DATACALL) ||
 810                 (app_value->classid == STC_TOTAL_WIFI_CLASSID &&
 811                 context->counter->iftype == STC_IFACE_WIFI) ||
 812                 (app_value->classid == STC_TOTAL_BLUETOOTH_CLASSID &&
 813                 context->counter->iftype == STC_IFACE_BLUETOOTH))
 814                 __app_counter_update(app_key, app_value, context);
 815 }
 816
 817 static gboolean __apps_counter_update_foreach_classid(gpointer key,
 818                                                       gpointer value,
 819                                                       gpointer data)
 820 {
 821         stc_app_key_s *app_key = (stc_app_key_s *)key;
 822         stc_app_value_s *app_value = (stc_app_value_s *)value;
 823         classid_bytes_context_s *context = (classid_bytes_context_s *)data;
 824
 825         if (context->counter->intend != NFACCT_COUNTER)
 826                 goto try_next_callback;
 827
 828         __interface_counter_update(app_key, app_value, context);
 829
 830         if (app_value->classid != context->counter->classid)
 831                 goto try_next_callback;
 832
 833         __app_counter_update(app_key, app_value, context);
 834
 835 try_next_callback:
 836         return FALSE;
 837 }
 838
 839 static void __fill_nfacct_result(char *cnt_name, int64_t bytes,
 840                                  struct counter_arg *carg)
 841 {
 842         struct nfacct_rule counter = {
 843                 .carg = carg,
 844                 .name = {0},
 845                 .ifname = {0},
 846                 0
 847         };
 848
 849         classid_bytes_context_s context = {
 850                 .counter = &counter,
 851                 .bytes = bytes,
 852                 .data_limit_reached = FALSE,
 853         };
 854
 855         STC_LOGD("cnt_name %s", cnt_name);
 856
 857         if (!recreate_counter_by_name(cnt_name, &counter)) {
 858                 STC_LOGE("Can't parse counter name %s", cnt_name);
 859                 return;
 860         }
 861
 862         STC_LOGI("classid %lu, iftype %u, iotype %d, intend %d, ifname %s, bytes %lld",
 863                  context.counter->classid, context.counter->iftype,
 864                  context.counter->iotype, context.counter->intend,
 865                  context.counter->ifname, context.bytes);
 866
 867         if (g_system->rstns)
 868                 g_tree_foreach(g_system->rstns,
 869                                __rstn_counter_update_foreach_classid,
 870                                &context);
 871
 872         if (g_system->apps)
 873                 g_tree_foreach(g_system->apps,
 874                                __apps_counter_update_foreach_classid,
 875                                &context);
 876 }
 877
 878 static int __fill_counters(struct rtattr *attr_list[__NFACCT_MAX],
 879                            void *user_data)
 880 {
 881         struct counter_arg *carg = user_data;
 882         char *cnt_name = (char *)RTA_DATA(attr_list[NFACCT_NAME]);
 883         if (carg->initiate) {
 884                 /**
 885                  * TODO: this will be used when daemon starts to update existing
 886                  * counter data if present.
 887                  *
 888                  populate_counters(cnt_name, carg);
 889                  */
 890         } else {
 891                 int64_t *bytes_p =
 892                         (int64_t *)RTA_DATA(attr_list[NFACCT_BYTES]);
 893                 int bytes = be64toh(*bytes_p);
 894                 if (bytes) {
 895                         ++carg->serialized_counters;
 896                         __fill_nfacct_result(cnt_name, bytes, carg);
 897                 }
 898         }
 899
 900         return 0;
 901 }
 902
 903 static int __post_fill_counters(void *user_data)
 904 {
 905         struct counter_arg *carg = user_data;
 906
 907         if (carg->initiate)
 908                 carg->initiate = 0;
 909
 910         return 0;
 911 }
 912
 913 static void __process_network_counter(struct genl *ans,
 914                                       struct counter_arg *carg)
 915 {
 916         struct netlink_serialization_params ser_params = {
 917                 .carg = carg,
 918                 .ans = ans,
 919                 .eval_attr = __fill_counters,
 920                 .post_eval_attr = __post_fill_counters,
 921         };
 922
 923         netlink_serialization_command *netlink =
 924                 netlink_create_command(&ser_params);
 925         if (!netlink) {
 926                 STC_LOGE("Can not create command");
 927                 return;
 928         }
 929
 930         netlink->deserialize_answer(&(netlink->params));
 931 }
 932
 933 static gboolean __process_contr_reply(GIOChannel *source,
 934                                       GIOCondition condition,
 935                                       gpointer user_data)
 936 {
 937         int sock = g_io_channel_unix_get_fd(source);
 938         struct genl ans;
 939         int ret;
 940         stc_s *stc = stc_get_manager();
 941
 942         if ((condition & G_IO_ERR) ||
 943             (condition & G_IO_HUP) ||
 944             (condition & G_IO_NVAL)) {
 945                 /* G_IO_ERR/G_IO_HUP/G_IO_NVAL received */
 946
 947                 __close_contr_sock(g_system);
 948                 return FALSE;
 949         }
 950
 951         if (stc == NULL) {
 952                 STC_LOGE("Can't get stc data");
 953                 goto out;
 954         }
 955
 956         ret = read_netlink(sock,
 957                            &ans, sizeof(struct genl));
 958         /* STC_LOGD("Counter data received ret [%d]", ret); */
 959         if (ret == 0)
 960                 goto out;
 961
 962         stc->carg->ans_len = ret;
 963         __process_network_counter(&ans, stc->carg);
 964
 965         g_idle_add(__flush_apps_stats_to_database, NULL);
 966         g_idle_add(__flush_rstns_counter_to_database, NULL);
 967 out:
 968         return TRUE;
 969 }
 970
 971 static gboolean __update_contr_cb(void *user_data)
 972 {
 973         /* Here we just sent command, answer we receive in another callback */
 974         stc_s *stc = stc_get_manager();
 975         ret_value_msg_if(stc == NULL, STC_ERROR_FAIL, "Can't get stc data");
 976         if (!stc->carg) {
 977                 stc->carg = MALLOC0(counter_arg_s, 1);
 978                 stc->carg->sock = stc_monitor_get_counter_socket();
 979         }
 980
 981         /* STC_LOGD("Get all counters"); */
 982         nfacct_send_get_all(stc->carg);
 983
 984         /* we need to continue the timer */
 985         return TRUE;
 986 }
 987 #if 0
 988 static gboolean __rstn_tree_foreach_print(gpointer key, gpointer value,
 989                                           gpointer data)
 990 {
 991         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 992         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 993
 994         __print_rstn(rstn_key, rstn_value);
 995         return FALSE;
 996 }
 997
 998 static void __rstn_tree_printall(void)
 999 {
1000         g_tree_foreach(g_system->rstns, __rstn_tree_foreach_print, NULL);
1001 }
1002 #endif
1003 static stc_rstn_value_s * __rstn_lookup(GTree *rstns_tree,
1004                                         const stc_rstn_key_s *key)
1005 {
1006         stc_rstn_value_s *lookup;
1007
1008         ret_value_msg_if(rstns_tree == NULL, NULL, "rstns_tree is null!");
1009
1010         lookup = g_tree_lookup(rstns_tree, key);
1011
1012         return lookup;
1013 }
1014
1015 static gboolean __remove_restriction(gpointer key, gpointer value,
1016                                      gpointer data)
1017 {
1018         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1019         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1020
1021         /* rstn rule is already removed */
1022         if (rstn_value->rst_state == STC_RESTRICTION_REMOVED)
1023                 return FALSE;
1024
1025         __process_restriction(RST_UNSET, rstn_key, rstn_value, data);
1026         __print_rstn(rstn_key, rstn_value);
1027         return FALSE;
1028 }
1029
1030 static gboolean __add_restriction_debug(gpointer key, gpointer value,
1031                                         gpointer data)
1032 {
1033         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1034         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1035
1036         /* rstn rule is activated */
1037         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1038                 return FALSE;
1039
1040         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1041                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1042         else
1043                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1044
1045         __print_rstn(rstn_key, rstn_value);
1046
1047         return FALSE;
1048 }
1049
1050 static gboolean __add_restriction(gpointer key, gpointer value, gpointer data)
1051 {
1052         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1053         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1054
1055         /* rstn rule is activated */
1056         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1057                 return FALSE;
1058
1059         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1060                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1061         else
1062                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1063
1064         return FALSE;
1065 }
1066
1067 static stc_error_e __rstn_tree_remove(stc_rstn_key_s *key)
1068 {
1069         stc_rstn_value_s *lookup_value;
1070
1071         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1072
1073         lookup_value = __rstn_lookup(g_system->rstns, key);
1074         if (!lookup_value) {
1075                 STC_LOGE("key not found");
1076                 return STC_ERROR_NO_DATA;
1077         }
1078
1079         __remove_restriction(key, lookup_value, NULL);
1080
1081         /* remove counter also */
1082         table_counters_delete(lookup_value->restriction_id);
1083
1084         if (!g_tree_remove(g_system->rstns, key)) {
1085                 STC_LOGD("key not found");
1086                 return STC_ERROR_NO_DATA;
1087         }
1088
1089         return STC_ERROR_NONE;
1090 }
1091
1092 static stc_error_e __rstn_tree_add(stc_rstn_key_s *key,
1093                                    stc_rstn_value_s *value, gboolean debug)
1094 {
1095         stc_rstn_value_s *rstn_value;
1096
1097         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1098
1099         rstn_value = __rstn_lookup(g_system->rstns, key);
1100         if (!rstn_value) {
1101                 stc_rstn_key_s *rstn_key = MALLOC0(stc_rstn_key_s, 1);
1102                 if (!rstn_key) {
1103                         STC_LOGE("rstn_key allocation failed");
1104                         return STC_ERROR_OUT_OF_MEMORY;
1105                 }
1106
1107                 rstn_value = MALLOC0(stc_rstn_value_s, 1);
1108                 if (!rstn_value) {
1109                         STC_LOGE("rstn_value allocation failed");
1110                         FREE(rstn_key);
1111                         return STC_ERROR_OUT_OF_MEMORY;
1112                 }
1113
1114                 rstn_key->app_id = g_strdup(key->app_id);
1115                 rstn_key->ifname = g_strdup(key->ifname);
1116                 rstn_key->imsi = g_strdup(key->imsi);
1117                 rstn_key->iftype = key->iftype;
1118                 rstn_key->roaming = key->roaming;
1119
1120                 g_tree_insert(g_system->rstns, rstn_key, rstn_value);
1121         }
1122
1123         rstn_value->restriction_id = value->restriction_id;
1124         rstn_value->rst_state = value->rst_state;
1125         rstn_value->classid = value->classid;
1126         rstn_value->data_limit = value->data_limit;
1127         rstn_value->data_warn_limit = value->data_warn_limit;
1128         rstn_value->data_counter = 0;
1129         rstn_value->warn_limit_crossed_notified = FALSE;
1130         rstn_value->rstn_limit_crossed_notified = FALSE;
1131
1132         if (debug == TRUE)
1133                 __add_restriction_debug(key, rstn_value, NULL);
1134         else
1135                 __add_restriction(key, rstn_value, NULL);
1136
1137         return STC_ERROR_NONE;
1138 }
1139
1140 static stc_cb_ret_e __insert_restriction_cb(const table_restrictions_info *info,
1141                                             void *user_data)
1142 {
1143         stc_cb_ret_e ret = STC_CONTINUE;
1144
1145         stc_rstn_key_s key;
1146         stc_rstn_value_s value;
1147
1148         memset(&key, 0, sizeof(stc_rstn_key_s));
1149         memset(&value, 0, sizeof(stc_rstn_value_s));
1150
1151         key.app_id = g_strdup(info->app_id);
1152         key.ifname = g_strdup(info->ifname);
1153         key.imsi = g_strdup(info->imsi);
1154         key.iftype = info->iftype;
1155         key.roaming = info->roaming;
1156
1157         value.rst_state = info->rst_state;
1158         value.restriction_id = info->restriction_id;
1159
1160         if (value.rst_state != STC_RESTRICTION_EXCLUDED && info->app_id)
1161                 value.classid = get_classid_by_app_id(info->app_id, TRUE);
1162         else
1163                 value.classid = STC_UNKNOWN_CLASSID;
1164
1165         value.data_limit = info->data_limit;
1166         value.data_warn_limit = info->data_warn_limit;
1167
1168         if (__rstn_tree_add(&key, &value, FALSE) != STC_ERROR_NONE)
1169                 ret = STC_CANCEL;
1170
1171         FREE(key.app_id);
1172         FREE(key.ifname);
1173         FREE(key.imsi);
1174         return ret;
1175 }
1176
1177 static void __fill_restritions_list(void)
1178 {
1179         table_restrictions_foreach(__insert_restriction_cb, NULL);
1180         //__rstn_tree_printall();
1181 }
1182
1183 static gboolean __add_rstn_foreach_application(gpointer key,
1184                                                gpointer value,
1185                                                gpointer data)
1186 {
1187         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1188         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1189         gchar *app_id = (gchar *)data;
1190
1191         /* rstn rule is not for applications */
1192         if (rstn_key->app_id == NULL)
1193                 goto out;
1194
1195         /* rstn rule is not for this application */
1196         if (g_strcmp0(rstn_key->app_id, app_id) != 0)
1197                 goto out;
1198
1199         /* rstn rule is already applied */
1200         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1201                 goto out;
1202
1203         /* add restriction to system */
1204         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1205                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1206         else
1207                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1208
1209         __print_rstn(rstn_key, rstn_value);
1210 out:
1211         return FALSE;
1212 }
1213
1214 static void __add_rstns_for_application(gchar *app_id)
1215 {
1216         g_tree_foreach(g_system->rstns, __add_rstn_foreach_application,
1217                        app_id);
1218 }
1219
1220 static void __stc_monitor_add_application_by_interface(const char *app_id)
1221 {
1222         stc_app_key_s app_key;
1223         stc_app_value_s app_value;
1224
1225         if (app_id == NULL)
1226                 return;
1227
1228         memset(&app_key, 0, sizeof(stc_app_key_s));
1229         memset(&app_value, 0, sizeof(stc_app_value_s));
1230
1231         app_key.pkg_id = g_strdup(app_id);
1232         app_key.app_id = g_strdup(app_id);
1233
1234         app_value.type = STC_APP_TYPE_NONE;
1235         app_value.processes = NULL;
1236         app_value.counter.in_bytes = 0;
1237         app_value.counter.out_bytes = 0;
1238
1239         stc_monitor_application_add(app_key, app_value);
1240
1241         FREE(app_key.pkg_id);
1242         FREE(app_key.app_id);
1243 }
1244
1245 stc_error_e stc_monitor_init(void)
1246 {
1247         stc_system_s *system = MALLOC0(stc_system_s, 1);
1248         GIOChannel *gio = NULL;
1249
1250         ret_value_msg_if(system == NULL, STC_ERROR_OUT_OF_MEMORY, "stc_system_s malloc fail!");
1251
1252         /* initializing cgroups */
1253         cgroup_init();
1254
1255         /* creating monitored application tree */
1256         system->apps = g_tree_new_full(__apps_tree_key_compare, NULL,
1257                                        __apps_tree_key_free,
1258                                        __apps_tree_value_free);
1259
1260         system->rstns = g_tree_new_full(__rstns_tree_key_compare, NULL,
1261                                         __rstns_tree_key_free,
1262                                         __rstns_tree_value_free);
1263
1264         /* create netlink socket for updating kernel counters */
1265         system->contr_sock = create_netlink(NETLINK_NETFILTER, 0);
1266         if (!(system->contr_sock)) {
1267                 STC_LOGE("failed to open socket");
1268                 FREE(system);
1269                 return STC_ERROR_FAIL;
1270         }
1271
1272         gio = g_io_channel_unix_new(system->contr_sock);
1273         system->contr_gsource_id =
1274                 g_io_add_watch(gio, G_IO_IN | G_IO_ERR | G_IO_HUP,
1275                                (GIOFunc) __process_contr_reply,
1276                                NULL);
1277         g_io_channel_unref(gio);
1278
1279         g_system = system;
1280
1281         __stc_monitor_add_application_by_interface(STC_TOTAL_DATACALL);
1282         __stc_monitor_add_application_by_interface(STC_TOTAL_WIFI);
1283         __stc_monitor_add_application_by_interface(STC_TOTAL_BLUETOOTH);
1284
1285         /* creating restriction rules tree */
1286         __update_contr_cb(NULL);
1287
1288         /* registering periodic kernel counters update callback */
1289         g_system->contr_timer_id = g_timeout_add_seconds(CONTR_TIMER_INTERVAL,
1290                                                          __update_contr_cb,
1291                                                          NULL);
1292         if (g_system->contr_timer_id == 0) {
1293                 STC_LOGE("Failed to register kernel counters update timer");
1294                 __close_contr_sock(g_system);
1295                 return STC_ERROR_FAIL;
1296         }
1297
1298         __fill_restritions_list();
1299
1300         return STC_ERROR_NONE;
1301 }
1302
1303 stc_error_e stc_monitor_deinit(void)
1304 {
1305         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1306
1307         /* close netlink socket for updating kernel counters */
1308         __close_contr_sock(g_system);
1309
1310         /* remove kernel counters update timer */
1311         if (g_system->contr_timer_id > 0) {
1312                 g_source_remove(g_system->contr_timer_id);
1313                 g_system->contr_timer_id = 0;
1314         }
1315
1316         /* destroy monitored application tree */
1317         g_tree_destroy(g_system->apps);
1318         g_system->apps = NULL;
1319
1320         /* destroy restriction rules tree */
1321         g_tree_destroy(g_system->rstns);
1322         g_system->rstns = NULL;
1323
1324         FREE(g_system);
1325
1326         return STC_ERROR_NONE;
1327 }
1328
1329 stc_error_e stc_monitor_application_add(const stc_app_key_s app_key,
1330                                         const stc_app_value_s app_value)
1331 {
1332         stc_error_e ret = STC_ERROR_NONE;
1333         stc_app_key_s *key;
1334         stc_app_value_s *value;
1335         stc_app_value_s *lookup;
1336
1337         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1338
1339         lookup = __application_lookup(g_system->apps, &app_key);
1340         if (lookup) {
1341                 STC_LOGD("app_key already present");
1342                 return STC_ERROR_NONE;
1343         }
1344
1345         key = MALLOC0(stc_app_key_s, 1);
1346         if (!key) {
1347                 STC_LOGE("key allocation failed");
1348                 return STC_ERROR_OUT_OF_MEMORY;
1349         }
1350
1351         value = MALLOC0(stc_app_value_s, 1);
1352         if (!value) {
1353                 STC_LOGE("value allocation failed");
1354                 FREE(key);
1355                 return STC_ERROR_OUT_OF_MEMORY;
1356         }
1357
1358         key->app_id = g_strdup(app_key.app_id);
1359         key->pkg_id = g_strdup(app_key.pkg_id);
1360
1361         value->type = app_value.type;
1362         value->data_usage.in_bytes = app_value.data_usage.in_bytes;
1363         value->data_usage.out_bytes = app_value.data_usage.out_bytes;
1364
1365         value->processes = g_tree_new_full(__processes_tree_key_compare, NULL,
1366                                            __processes_tree_key_free,
1367                                            __processes_tree_value_free);
1368
1369         /* create cgroup and update classid */
1370         value->classid = get_classid_by_app_id(app_key.app_id, TRUE);
1371
1372         g_tree_insert(g_system->apps, key, value);
1373
1374         /* add nfacct rule for this classid */
1375         __add_application_monitor(key, value, stc_get_default_connection());
1376         __add_rstns_for_application(app_key.app_id);
1377
1378         return ret;
1379 }
1380
1381 stc_error_e stc_monitor_process_add(const stc_app_key_s app_key,
1382                                     const stc_process_key_s proc_key,
1383                                     const stc_process_value_s proc_value)
1384 {
1385         stc_error_e ret = STC_ERROR_NONE;
1386         stc_app_value_s *app_lookup;
1387         stc_process_key_s *key;
1388         stc_process_value_s *value;
1389         stc_process_value_s *proc_lookup;
1390
1391         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1392
1393         app_lookup = __application_lookup(g_system->apps, &app_key);
1394         if (!app_lookup) {
1395                 STC_LOGD("app_key not found");
1396                 return STC_ERROR_FAIL;
1397         }
1398
1399         proc_lookup = __process_lookup(app_lookup->processes, &proc_key);
1400         if (proc_lookup) {
1401                 STC_LOGD("proc_key already present");
1402                 return STC_ERROR_NONE;
1403         }
1404
1405         key = MALLOC0(stc_process_key_s, 1);
1406         if (!key) {
1407                 STC_LOGE("key allocation failed");
1408                 return STC_ERROR_OUT_OF_MEMORY;
1409         }
1410
1411         value = MALLOC0(stc_process_value_s, 1);
1412         if (!value) {
1413                 STC_LOGE("value allocation failed");
1414                 FREE(key);
1415                 return STC_ERROR_OUT_OF_MEMORY;
1416         }
1417
1418         key->pid = proc_key.pid;
1419
1420         value->ground = proc_value.ground;
1421
1422         g_tree_insert(app_lookup->processes, key, value);
1423
1424         /* add pid to application cgroup */
1425         place_pids_to_net_cgroup(proc_key.pid, app_key.app_id);
1426
1427         return ret;
1428 }
1429
1430 stc_error_e stc_monitor_process_remove(pid_t pid)
1431 {
1432         stc_error_e ret = STC_ERROR_NONE;
1433         stc_process_key_s proc_key = {
1434                 .pid = pid
1435         };
1436
1437         remove_pid_context_s context = {
1438                 .app_key = NULL,
1439                 .proc_key = &proc_key,
1440                 .entry_removed = FALSE,
1441         };
1442
1443         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1444
1445         g_tree_foreach(g_system->apps, __apps_tree_foreach_remove_pid,
1446                        &context);
1447
1448         if (context.entry_removed)
1449                 __application_remove_if_empty(context.app_key);
1450
1451         return ret;
1452 }
1453
1454 stc_error_e stc_monitor_process_update_ground(const stc_app_key_s app_key,
1455                                               const stc_process_key_s proc_key,
1456                                               stc_app_state_e ground)
1457 {
1458         stc_error_e ret = STC_ERROR_NONE;
1459         stc_app_value_s *app_lookup;
1460         stc_process_value_s *proc_lookup;
1461
1462         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1463
1464         app_lookup = __application_lookup(g_system->apps, &app_key);
1465         if (!app_lookup) {
1466                 STC_LOGD("app_key not found");
1467                 return STC_ERROR_FAIL;
1468         }
1469
1470         proc_lookup = __process_lookup(app_lookup->processes, &proc_key);
1471         if (!proc_lookup) {
1472                 STC_LOGD("proc_key not found");
1473                 return STC_ERROR_FAIL;
1474         }
1475
1476         if (proc_lookup->ground != ground)
1477                 proc_lookup->ground = ground;
1478
1479         if (ground == STC_APP_STATE_BACKGROUND) {
1480                 char *background_app_id = g_strconcat(app_key.app_id,
1481                                                      STC_BACKGROUND_APP_SUFFIX,
1482                                                      NULL);
1483                 place_pids_to_net_cgroup(proc_key.pid, background_app_id);
1484                 g_free(background_app_id);
1485         } else {
1486                 place_pids_to_net_cgroup(proc_key.pid, app_key.app_id);
1487         }
1488
1489         return ret;
1490 }
1491
1492 void stc_monitor_update_rstn_by_default_connection(void *data)
1493 {
1494         static default_connection_s old_connection;
1495         default_connection_s *new_connection = (default_connection_s *)data;
1496
1497         if (old_connection.path != NULL) {
1498                 if (g_system->apps)
1499                         g_tree_foreach(g_system->apps,
1500                                        __remove_application_monitor,
1501                                        (gpointer)&old_connection);
1502
1503                 if (g_system->rstns)
1504                         g_tree_foreach(g_system->rstns,
1505                                        __remove_restriction,
1506                                        (gpointer)&old_connection);
1507         }
1508
1509         FREE(old_connection.path);
1510         FREE(old_connection.ifname);
1511         old_connection.type = 0;
1512         old_connection.roaming = 0;
1513
1514         if (new_connection != NULL && new_connection->path != NULL) {
1515                 if (g_system->apps)
1516                         g_tree_foreach(g_system->apps,
1517                                        __add_application_monitor,
1518                                        (gpointer)new_connection);
1519
1520                 if (g_system->rstns)
1521                         g_tree_foreach(g_system->rstns, __add_restriction,
1522                                        NULL);
1523
1524                 old_connection.path = g_strdup(new_connection->path);
1525                 old_connection.ifname = g_strdup(new_connection->ifname);
1526                 old_connection.type = new_connection->type;
1527                 old_connection.roaming = new_connection->roaming;
1528         }
1529 }
1530
1531 stc_error_e stc_monitor_rstns_tree_add(const table_restrictions_info *info)
1532 {
1533         stc_error_e ret;
1534
1535         stc_rstn_key_s key;
1536         stc_rstn_value_s value;
1537
1538         memset(&key, 0, sizeof(stc_rstn_key_s));
1539         memset(&value, 0, sizeof(stc_rstn_value_s));
1540
1541         key.app_id = g_strdup(info->app_id);
1542         key.ifname = g_strdup(info->ifname);
1543         key.imsi = g_strdup(info->imsi);
1544         key.iftype = info->iftype;
1545         key.roaming = info->roaming;
1546
1547         value.rst_state = info->rst_state;
1548         value.restriction_id = info->restriction_id;
1549
1550         if (value.rst_state != STC_RESTRICTION_EXCLUDED && info->app_id)
1551                 value.classid = get_classid_by_app_id(info->app_id, TRUE);
1552         else
1553                 value.classid = STC_UNKNOWN_CLASSID;
1554
1555         value.data_limit = info->data_limit;
1556         value.data_warn_limit = info->data_warn_limit;
1557
1558         ret = __rstn_tree_add(&key, &value, TRUE);
1559
1560         FREE(key.app_id);
1561         FREE(key.ifname);
1562         FREE(key.imsi);
1563         return ret;
1564 }
1565
1566 stc_error_e stc_monitor_rstns_tree_remove(const table_restrictions_info *info)
1567 {
1568         stc_error_e ret;
1569
1570         stc_rstn_key_s key = {
1571                 .app_id = g_strdup(info->app_id),
1572                 .ifname = g_strdup(info->ifname),
1573                 .imsi = g_strdup(info->imsi),
1574                 .iftype = info->iftype,
1575                 .roaming = info->roaming,
1576         };
1577
1578         ret = __rstn_tree_remove(&key);
1579
1580         FREE(key.app_id);
1581         FREE(key.ifname);
1582         FREE(key.imsi);
1583         return ret;
1584 }
1585
1586 int stc_monitor_get_counter_socket(void)
1587 {
1588         return g_system->contr_sock;
1589 }