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