src/monitor/stc-monitor.c

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