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 #include <vconf.h>
  19 #include <vconf-keys.h>
  20
  21 #include "stc-default-connection.h"
  22 #include "helper-nl.h"
  23 #include "helper-nfacct-rule.h"
  24 #include "helper-net-cls.h"
  25 #include "helper-cgroup.h"
  26 #include "counter.h"
  27 #include "table-statistics.h"
  28 #include "table-counters.h"
  29 #include "stc-exception.h"
  30 #include "stc-monitor.h"
  31 #include "stc-manager-plugin.h"
  32
  33 #define MAX_INT_LENGTH 128
  34 #define VCONFKEY_STC_BACKGROUND_STATE "db/stc/background_state"
  35
  36 typedef struct {
  37         stc_app_key_s *app_key;
  38         stc_process_key_s *proc_key;
  39         gboolean entry_removed;
  40 } remove_pid_context_s;
  41
  42 typedef struct {
  43         struct nfacct_rule *counter;
  44         int64_t bytes;
  45         gboolean data_limit_reached;
  46 } classid_bytes_context_s;
  47
  48 static stc_system_s *g_system = NULL;
  49
  50 static nfacct_rule_jump __get_jump_by_intend(struct nfacct_rule *counter)
  51 {
  52         if (counter->intend == NFACCT_WARN)
  53                 return NFACCT_JUMP_ACCEPT;
  54         else if (counter->intend == NFACCT_BLOCK)
  55                 return NFACCT_JUMP_REJECT;
  56
  57         return NFACCT_JUMP_UNKNOWN;
  58 }
  59
  60 static stc_error_e __add_iptables_in(struct nfacct_rule *counter)
  61 {
  62         if (counter == NULL)
  63                 return STC_ERROR_INVALID_PARAMETER;
  64
  65         counter->action = NFACCT_ACTION_INSERT;
  66         counter->iotype = NFACCT_COUNTER_IN;
  67         counter->jump = __get_jump_by_intend(counter);
  68         counter->iptype = NFACCT_TYPE_IPV4;
  69         counter->send_limit = 0;
  70         counter->rcv_limit = 0;
  71
  72         return produce_net_rule(counter);
  73 }
  74
  75 static stc_error_e __add_iptables_out(struct nfacct_rule *counter)
  76 {
  77         if (counter == NULL)
  78                 return STC_ERROR_INVALID_PARAMETER;
  79
  80         counter->action = NFACCT_ACTION_INSERT;
  81         counter->iotype = NFACCT_COUNTER_OUT;
  82         counter->jump = __get_jump_by_intend(counter);
  83         counter->iptype = NFACCT_TYPE_IPV4;
  84         counter->send_limit = 0;
  85         counter->rcv_limit = 0;
  86
  87         return produce_net_rule(counter);
  88 }
  89
  90 static stc_error_e __del_iptables_in(struct nfacct_rule *counter)
  91 {
  92         if (counter == NULL)
  93                 return STC_ERROR_INVALID_PARAMETER;
  94
  95         counter->action = NFACCT_ACTION_DELETE;
  96         counter->iotype = NFACCT_COUNTER_IN;
  97         counter->jump = __get_jump_by_intend(counter);
  98         counter->iptype = NFACCT_TYPE_IPV4;
  99         counter->send_limit = 0;
 100         counter->rcv_limit = 0;
 101
 102         return produce_net_rule(counter);
 103 }
 104
 105 static stc_error_e __del_iptables_out(struct nfacct_rule *counter)
 106 {
 107         if (counter == NULL)
 108                 return STC_ERROR_INVALID_PARAMETER;
 109
 110         counter->action = NFACCT_ACTION_DELETE;
 111         counter->iotype = NFACCT_COUNTER_OUT;
 112         counter->jump = __get_jump_by_intend(counter);
 113         counter->iptype = NFACCT_TYPE_IPV4;
 114         counter->send_limit = 0;
 115         counter->rcv_limit = 0;
 116
 117         return produce_net_rule(counter);
 118 }
 119
 120 static stc_error_e __add_ip6tables_in(struct nfacct_rule *counter)
 121 {
 122         if (counter == NULL)
 123                 return STC_ERROR_INVALID_PARAMETER;
 124
 125         counter->action = NFACCT_ACTION_INSERT;
 126         counter->iotype = NFACCT_COUNTER_IN;
 127         counter->jump = __get_jump_by_intend(counter);
 128         counter->iptype = NFACCT_TYPE_IPV6;
 129         counter->send_limit = 0;
 130         counter->rcv_limit = 0;
 131
 132         return produce_net_rule(counter);
 133 }
 134
 135 static stc_error_e __add_ip6tables_out(struct nfacct_rule *counter)
 136 {
 137         if (counter == NULL)
 138                 return STC_ERROR_INVALID_PARAMETER;
 139
 140         counter->action = NFACCT_ACTION_INSERT;
 141         counter->iotype = NFACCT_COUNTER_OUT;
 142         counter->jump = __get_jump_by_intend(counter);
 143         counter->iptype = NFACCT_TYPE_IPV6;
 144         counter->send_limit = 0;
 145         counter->rcv_limit = 0;
 146
 147         return produce_net_rule(counter);
 148 }
 149
 150 static stc_error_e __del_ip6tables_in(struct nfacct_rule *counter)
 151 {
 152         if (counter == NULL)
 153                 return STC_ERROR_INVALID_PARAMETER;
 154
 155         counter->action = NFACCT_ACTION_DELETE;
 156         counter->iotype = NFACCT_COUNTER_IN;
 157         counter->jump = __get_jump_by_intend(counter);
 158         counter->iptype = NFACCT_TYPE_IPV6;
 159         counter->send_limit = 0;
 160         counter->rcv_limit = 0;
 161
 162         return produce_net_rule(counter);
 163 }
 164
 165 static stc_error_e __del_ip6tables_out(struct nfacct_rule *counter)
 166 {
 167         if (counter == NULL)
 168                 return STC_ERROR_INVALID_PARAMETER;
 169
 170         counter->action = NFACCT_ACTION_DELETE;
 171         counter->iotype = NFACCT_COUNTER_OUT;
 172         counter->jump = __get_jump_by_intend(counter);
 173         counter->iptype = NFACCT_TYPE_IPV6;
 174         counter->send_limit = 0;
 175         counter->rcv_limit = 0;
 176
 177         return produce_net_rule(counter);
 178 }
 179
 180 static int __processes_tree_key_compare(gconstpointer a, gconstpointer b,
 181                                         gpointer UNUSED user_data)
 182 {
 183         stc_process_key_s *key_a = (stc_process_key_s *)a;
 184         stc_process_key_s *key_b = (stc_process_key_s *)b;
 185
 186         return key_a->pid - key_b->pid;
 187 }
 188
 189 static void __processes_tree_value_free(gpointer data)
 190 {
 191         stc_process_value_s *value = (stc_process_value_s *)data;
 192
 193         FREE(value);
 194 }
 195
 196 static void __processes_tree_key_free(gpointer data)
 197 {
 198         stc_process_key_s *key = (stc_process_key_s *)data;
 199
 200         FREE(key);
 201 }
 202
 203 static int __apps_tree_key_compare(gconstpointer a, gconstpointer b,
 204                                    gpointer UNUSED user_data)
 205 {
 206         stc_app_key_s *key_a = (stc_app_key_s *)a;
 207         stc_app_key_s *key_b = (stc_app_key_s *)b;
 208         gint ret;
 209
 210         ret = g_strcmp0(key_a->pkg_id, key_b->pkg_id);
 211         if (ret)
 212                 return ret;
 213
 214         return g_strcmp0(key_a->app_id, key_b->app_id);
 215 }
 216
 217 static void __apps_tree_value_free(gpointer data)
 218 {
 219         stc_app_value_s *value = (stc_app_value_s *)data;
 220
 221         g_tree_destroy(value->processes);
 222         value->processes = NULL;
 223
 224         FREE(value);
 225 }
 226
 227 static void __apps_tree_key_free(gpointer data)
 228 {
 229         stc_app_key_s *key = (stc_app_key_s *)data;
 230
 231         g_free(key->pkg_id);
 232         g_free(key->app_id);
 233         FREE(key);
 234 }
 235
 236 static int __rstns_tree_key_compare(gconstpointer a, gconstpointer b,
 237                                     gpointer UNUSED user_data)
 238 {
 239         stc_rstn_key_s *key_a = (stc_rstn_key_s *)a;
 240         stc_rstn_key_s *key_b = (stc_rstn_key_s *)b;
 241         int ret;
 242
 243         ret = g_strcmp0(key_a->app_id, key_b->app_id);
 244         if (ret != 0)
 245                 return ret;
 246
 247         ret = g_strcmp0(key_a->ifname, key_b->ifname);
 248         if (ret != 0)
 249                 return ret;
 250
 251         ret = g_strcmp0(key_a->subscriber_id, key_b->subscriber_id);
 252         if (ret != 0)
 253                 return ret;
 254
 255         ret = key_a->iftype - key_b->iftype;
 256         if (ret != 0)
 257                 return ret;
 258
 259         return 0;
 260 }
 261
 262 static void __rstns_tree_value_free(gpointer data)
 263 {
 264         stc_rstn_value_s *value = (stc_rstn_value_s *)data;
 265
 266         FREE(value);
 267 }
 268
 269 static void __rstns_tree_key_free(gpointer data)
 270 {
 271         stc_rstn_key_s *key = (stc_rstn_key_s *)data;
 272
 273         FREE(key->app_id);
 274         FREE(key->ifname);
 275         FREE(key->subscriber_id);
 276         FREE(key);
 277 }
 278
 279 static gboolean __processes_tree_foreach_print(gpointer key, gpointer value,
 280                                                gpointer data)
 281 {
 282         stc_process_key_s *proc_key = (stc_process_key_s *)key;
 283         stc_process_value_s *proc_value = (stc_process_value_s *)value;
 284
 285         STC_LOGD("Process entry => PID [\033[1;33m%d\033[0;m], Ground state [%d]",
 286                  proc_key->pid, proc_value->ground);
 287         return FALSE;
 288 }
 289
 290 static void __processes_tree_printall(GTree *processes)
 291 {
 292         g_tree_foreach(processes, __processes_tree_foreach_print, NULL);
 293 }
 294
 295 static gboolean __apps_tree_foreach_print(gpointer key, gpointer value,
 296                                           gpointer data)
 297 {
 298         stc_app_key_s *app_key = (stc_app_key_s *)key;
 299         stc_app_value_s *app_value = (stc_app_value_s *)value;
 300
 301         STC_LOGD("Application info => Pkg ID [\033[0;34m%s\033[0;m], "
 302                  "App ID [\033[0;32m%s\033[0;m], Type [%d], classid [%d],"
 303                  " counter [ in (%lld), out (%lld)]",
 304                  app_key->pkg_id, app_key->app_id,
 305                  app_value->type, app_value->classid,
 306                  app_value->data_usage.in_bytes, app_value->data_usage.out_bytes);
 307
 308         __processes_tree_printall(app_value->processes);
 309         return FALSE;
 310 }
 311
 312 static void __apps_tree_printall(void)
 313 {
 314         g_tree_foreach(g_system->apps, __apps_tree_foreach_print, NULL);
 315 }
 316
 317 static gboolean __apps_tree_foreach_remove_pid(gpointer key, gpointer value,
 318                                                gpointer data)
 319 {
 320         remove_pid_context_s *context = (remove_pid_context_s *)data;
 321         stc_app_value_s *app_value = (stc_app_value_s *)value;
 322
 323         if (!g_tree_remove(app_value->processes, context->proc_key)) {
 324                 if (STC_DEBUG_LOG)
 325                         STC_LOGD("key not found");
 326                 return FALSE;
 327         }
 328
 329         context->entry_removed = TRUE;
 330         context->app_key = (stc_app_key_s *)key;
 331
 332         return TRUE;
 333 }
 334
 335 static stc_app_value_s * __application_lookup(GTree *apps,
 336                                               const stc_app_key_s *key)
 337 {
 338         stc_app_value_s *lookup;
 339
 340         ret_value_msg_if(apps == NULL, NULL, "apps is null!");
 341
 342         lookup = g_tree_lookup(apps, key);
 343
 344         return lookup;
 345 }
 346
 347 static stc_process_value_s * __process_lookup(GTree *processes,
 348                                               const stc_process_key_s *key)
 349 {
 350         stc_process_value_s *lookup;
 351
 352         ret_value_msg_if(processes == NULL, NULL, "processes is null!");
 353
 354         lookup = g_tree_lookup(processes, key);
 355
 356         return lookup;
 357 }
 358
 359 static gboolean __processes_tree_check_empty(gpointer key, gpointer value,
 360                                              gpointer data)
 361 {
 362         guint *pid_count = (guint *)data;
 363         (*pid_count)++;
 364         return TRUE;
 365 }
 366
 367 static gboolean __add_application_monitor(gpointer key, gpointer value,
 368                                           gpointer data)
 369 {
 370         stc_app_value_s *app_value = (stc_app_value_s *)value;
 371         default_connection_s *connection = (default_connection_s *)data;
 372         stc_s *stc = stc_get_manager();
 373
 374         if (app_value->classid == STC_TOTAL_DATACALL_CLASSID ||
 375             app_value->classid == STC_TOTAL_WIFI_CLASSID ||
 376             app_value->classid == STC_TOTAL_BLUETOOTH_CLASSID)
 377                 return FALSE;
 378
 379         if (stc && connection && connection->ifname) {
 380                 struct nfacct_rule counter;
 381
 382                 if (!stc->carg) {
 383                         stc->carg = MALLOC0(counter_arg_s, 1);
 384                         if (stc->carg == NULL)
 385                                 return FALSE;
 386
 387                         stc->carg->sock = stc_monitor_get_counter_socket();
 388                 }
 389
 390                 memset(&counter, 0, sizeof(struct nfacct_rule));
 391
 392                 counter.carg = stc->carg;
 393                 counter.classid = app_value->classid;
 394                 counter.intend = NFACCT_COUNTER;
 395                 counter.iftype = connection->type;
 396                 g_strlcpy(counter.ifname, connection->ifname, MAX_IFACE_LENGTH);
 397
 398                 if (app_value->classid == STC_TOTAL_IPV4_CLASSID) {
 399                         __add_iptables_in(&counter);
 400                         __add_iptables_out(&counter);
 401                 } else if (app_value->classid == STC_TOTAL_IPV6_CLASSID) {
 402                         __add_ip6tables_in(&counter);
 403                         __add_ip6tables_out(&counter);
 404                 } else {
 405                         __add_iptables_in(&counter);
 406                         __add_iptables_out(&counter);
 407                         __add_ip6tables_in(&counter);
 408                         __add_ip6tables_out(&counter);
 409                 }
 410         }
 411
 412         return FALSE;
 413 }
 414
 415 static gboolean __remove_application_monitor(gpointer key, gpointer value,
 416                                              gpointer data)
 417 {
 418         stc_app_value_s *app_value = (stc_app_value_s *)value;
 419         default_connection_s *connection = (default_connection_s *)data;
 420         stc_s *stc = stc_get_manager();
 421
 422         if (stc && connection && connection->ifname) {
 423                 struct nfacct_rule counter;
 424
 425                 if (!stc->carg) {
 426                         stc->carg = MALLOC0(counter_arg_s, 1);
 427                         if (stc->carg == NULL)
 428                                 return FALSE;
 429
 430                         stc->carg->sock = stc_monitor_get_counter_socket();
 431                 }
 432
 433                 memset(&counter, 0, sizeof(struct nfacct_rule));
 434
 435                 counter.carg = stc->carg;
 436                 counter.classid = app_value->classid;
 437                 counter.intend = NFACCT_COUNTER;
 438                 counter.iftype = connection->type;
 439                 g_strlcpy(counter.ifname, connection->ifname, MAX_IFACE_LENGTH);
 440
 441                 __del_iptables_in(&counter);
 442                 __del_iptables_out(&counter);
 443                 __del_ip6tables_in(&counter);
 444                 __del_ip6tables_out(&counter);
 445         }
 446
 447         return FALSE;
 448 }
 449
 450 static void __print_rstn(stc_rstn_key_s *rstn_key, stc_rstn_value_s *rstn_value)
 451 {
 452         STC_LOGI("rstn info => rstn_id [%llu], "
 453                  "app_id [%s], classid [%lu], ifname [%s], "
 454                  "iftype [%d], rst_state [%d], "
 455                  "limit [ (%lld) bytes], "
 456                  "warn_limit [ (%lld) bytes], "
 457                  "counter [ (%lld) bytes], "
 458                  "roaming [%d], subscriber_id [%s]",
 459                  rstn_value->restriction_id,
 460                  rstn_key->app_id, rstn_value->classid , rstn_key->ifname,
 461                  rstn_key->iftype, rstn_value->rst_state,
 462                  rstn_value->data_limit,
 463                  rstn_value->data_warn_limit,
 464                  rstn_value->data_counter,
 465                  rstn_key->roaming, rstn_key->subscriber_id);
 466 }
 467
 468 static void __process_restriction(enum traffic_restriction_type rst_type,
 469                                   stc_rstn_key_s *rstn_key,
 470                                   stc_rstn_value_s *rstn_value, void *data)
 471 {
 472         int64_t effective_data_limit, effective_data_warn_limit;
 473         default_connection_s *old_connection = (default_connection_s *)data;
 474         default_connection_s *connection = NULL;
 475
 476         if (old_connection != NULL)
 477                 connection = old_connection;
 478         else
 479                 connection = stc_get_default_connection();
 480
 481         /* no default ifname */
 482         if (connection->ifname == NULL)
 483                 return;
 484
 485         /* rstn not applicable for this interface */
 486         if (rstn_key->ifname != NULL && g_strcmp0("", rstn_key->ifname) != 0 &&
 487             g_strcmp0(connection->ifname, rstn_key->ifname) != 0)
 488                 return;
 489
 490         /* classid is invalid */
 491         if (rstn_value->classid == STC_UNKNOWN_CLASSID)
 492                 return;
 493
 494         effective_data_limit = rstn_value->data_limit;
 495         effective_data_warn_limit = rstn_value->data_warn_limit;
 496
 497         if (rst_type == RST_SET) {
 498                 /* TODO: Change this to runtime memory */
 499                 table_counters_info info;
 500
 501                 memset(&info, 0, sizeof(table_counters_info));
 502                 table_counters_get(rstn_value->restriction_id, &info);
 503
 504                 effective_data_limit -= info.data_counter;
 505                 effective_data_warn_limit -= info.data_counter;
 506
 507                 if (effective_data_limit < 0) {
 508                         effective_data_limit = 0;
 509                         rstn_value->data_limit_reached = TRUE;
 510                 }
 511
 512                 if (effective_data_warn_limit < 0)
 513                         effective_data_warn_limit = 0;
 514
 515                 STC_LOGD("datausage [%lld] bytes", info.data_counter);
 516         }
 517
 518         STC_LOGD("rstn_id [%llu], effective_data_limit [%lld] bytes, "
 519                  "effective_data_warn_limit [%lld] bytes",
 520                  rstn_value->restriction_id, effective_data_limit,
 521                  effective_data_warn_limit);
 522
 523         switch (rst_type) {
 524         case RST_SET:
 525                 if (effective_data_limit <= 0) {
 526                         char *default_ifname = stc_default_connection_get_ifname();
 527                         struct nfacct_rule counter;
 528                         stc_s *stc = stc_get_manager();
 529
 530                         if (!stc->carg) {
 531                                 stc->carg = MALLOC0(counter_arg_s, 1);
 532                                 if (stc->carg == NULL) {
 533                                         g_free(default_ifname);
 534                                         return;
 535                                 }
 536
 537                                 stc->carg->sock =
 538                                         stc_monitor_get_counter_socket();
 539                         }
 540
 541                         counter.carg = stc->carg;
 542                         counter.classid = rstn_value->classid;
 543                         counter.intend = NFACCT_BLOCK;
 544                         counter.iftype = rstn_key->iftype;
 545                         g_strlcpy(counter.ifname, default_ifname,
 546                                   MAX_IFACE_LENGTH);
 547
 548                         generate_counter_name(&counter);
 549                         g_free(default_ifname);
 550
 551                         /* iptables rule */
 552                         __add_iptables_in(&counter);
 553                         __add_iptables_out(&counter);
 554
 555                         /* ip6tables rule */
 556                         __add_ip6tables_in(&counter);
 557                         __add_ip6tables_out(&counter);
 558                 }
 559
 560                 rstn_value->rst_state = STC_RESTRICTION_ACTIVATED;
 561                 rstn_value->data_limit_reached = FALSE;
 562                 break;
 563         case RST_EXCLUDE:
 564                 ;//Do Nothing
 565                 break;
 566         case RST_UNSET:
 567                 {
 568                         char *default_ifname = stc_default_connection_get_ifname();
 569                         struct nfacct_rule counter;
 570                         stc_s *stc = stc_get_manager();
 571
 572                         if (!stc->carg) {
 573                                 stc->carg = MALLOC0(counter_arg_s, 1);
 574                                 if (stc->carg == NULL) {
 575                                         g_free(default_ifname);
 576                                         return;
 577                                 }
 578
 579                                 stc->carg->sock =
 580                                         stc_monitor_get_counter_socket();
 581                         }
 582
 583                         counter.carg = stc->carg;
 584                         counter.classid = rstn_value->classid;
 585                         counter.intend = NFACCT_BLOCK;
 586                         counter.iftype = rstn_key->iftype;
 587                         g_strlcpy(counter.ifname, default_ifname,
 588                                   MAX_IFACE_LENGTH);
 589
 590                         generate_counter_name(&counter);
 591                         g_free(default_ifname);
 592
 593                         /* iptables rule */
 594                         __del_iptables_in(&counter);
 595                         __del_iptables_out(&counter);
 596
 597                         /* ip6tables rule */
 598                         __del_ip6tables_in(&counter);
 599                         __del_ip6tables_out(&counter);
 600
 601                         rstn_value->rst_state = STC_RESTRICTION_REMOVED;
 602                         rstn_value->data_limit_reached = FALSE;
 603                 }
 604                 break;
 605         default:
 606                 ;//Do Nothing
 607         }
 608 }
 609
 610 static gboolean __remove_rstns_foreach_application(gpointer key,
 611                                                    gpointer value,
 612                                                    gpointer data)
 613 {
 614         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 615         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 616         gchar *app_id = (gchar *)data;
 617
 618         /* rstn rule is not for applications */
 619         if (rstn_key->app_id == NULL)
 620                 goto out;
 621
 622         /* rstn rule is not for this application */
 623         if (g_strcmp0(rstn_key->app_id, app_id) != 0)
 624                 goto out;
 625
 626         /* rstn rule is already removed */
 627         if (rstn_value->rst_state == STC_RESTRICTION_REMOVED)
 628                 goto out;
 629
 630         /* remove restriction from system */
 631         __process_restriction(RST_UNSET, rstn_key, rstn_value, data);
 632
 633         __print_rstn(rstn_key, rstn_value);
 634 out:
 635         return FALSE;
 636 }
 637
 638 static void __remove_rstns_for_application(gchar *app_id)
 639 {
 640         g_tree_foreach(g_system->rstns, __remove_rstns_foreach_application,
 641                        app_id);
 642 }
 643
 644 static stc_error_e __application_remove_if_empty(const stc_app_key_s *app_key)
 645 {
 646         stc_error_e ret = STC_ERROR_NONE;
 647         guint pid_count = 0;
 648         stc_app_value_s *lookup;
 649
 650         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
 651
 652         lookup = __application_lookup(g_system->apps, app_key);
 653         if (!lookup) {
 654                 STC_LOGE("app_key not found");
 655                 return STC_ERROR_NO_DATA;
 656         }
 657
 658         g_tree_foreach(lookup->processes, __processes_tree_check_empty,
 659                        &pid_count);
 660
 661         if (!pid_count) {
 662                 /* remove nfacct rule for this classid */
 663                 __remove_application_monitor((gpointer) app_key, lookup,
 664                                              stc_get_default_connection());
 665                 __remove_rstns_for_application(app_key->app_id);
 666         }
 667
 668         if (!g_tree_remove(g_system->apps, app_key)) {
 669                 ret = STC_ERROR_NO_DATA;
 670                 STC_LOGE("key not found");
 671         }
 672
 673         return ret;
 674 }
 675
 676 static stc_error_e __close_contr_sock(stc_system_s *system)
 677 {
 678         ret_value_msg_if(system == NULL, STC_ERROR_INVALID_PARAMETER, "invalid parameter");
 679
 680         /* close netlink socket for updating kernel counters */
 681         if (system->contr_sock != -1) {
 682                 close(system->contr_sock);
 683                 system->contr_sock = -1;
 684         }
 685
 686         if (system->contr_gsource_id != 0) {
 687                 g_source_remove(system->contr_gsource_id);
 688                 system->contr_gsource_id = 0;
 689         }
 690
 691         return STC_ERROR_NONE;
 692 }
 693
 694 static gboolean __process_contr_reply(GIOChannel *source,
 695                                       GIOCondition condition,
 696                                       gpointer user_data);
 697
 698 static stc_error_e __close_and_reopen_contr_sock(stc_system_s *system)
 699 {
 700         GIOChannel *gio = NULL;
 701         ret_value_msg_if(system == NULL, STC_ERROR_INVALID_PARAMETER, "invalid parameter");
 702
 703         /* close netlink socket for updating kernel counters */
 704         if (system->contr_sock != -1) {
 705                 close(system->contr_sock);
 706                 system->contr_sock = -1;
 707         }
 708
 709         if (system->contr_gsource_id != 0) {
 710                 g_source_remove(system->contr_gsource_id);
 711                 system->contr_gsource_id = 0;
 712         }
 713
 714         /* create netlink socket for updating kernel counters */
 715         system->contr_sock = create_netlink(NETLINK_NETFILTER, 0);
 716         if (system->contr_sock < 0) {
 717                 STC_LOGE("failed to open socket");
 718                 FREE(system);
 719                 return STC_ERROR_FAIL;
 720         }
 721
 722         gio = g_io_channel_unix_new(system->contr_sock);
 723         system->contr_gsource_id =
 724                 g_io_add_watch(gio, G_IO_IN | G_IO_ERR | G_IO_HUP,
 725                                (GIOFunc) __process_contr_reply,
 726                                NULL);
 727         g_io_channel_unref(gio);
 728
 729         return STC_ERROR_NONE;
 730 }
 731
 732 static gboolean __rstn_counter_update(stc_rstn_key_s *rstn_key,
 733                                       stc_rstn_value_s *rstn_value,
 734                                       classid_bytes_context_s *context)
 735 {
 736         switch (context->counter->iotype) {
 737         case NFACCT_COUNTER_IN:
 738         case NFACCT_COUNTER_OUT:
 739                 rstn_value->data_counter += context->bytes;
 740
 741                 if (rstn_value->data_counter >= rstn_value->data_warn_limit &&
 742                     rstn_value->warn_limit_crossed_notified == FALSE) {
 743
 744                         gboolean rv;
 745                         char iftype[MAX_INT_LENGTH];
 746                         char byte[MAX_INT_LENGTH];
 747                         stc_s *stc = (stc_s *)stc_get_manager();
 748                         ret_value_msg_if(stc == NULL, FALSE, "failed to get stc data");
 749
 750                         /* emit signal */
 751                         rv = stc_manager_dbus_emit_signal(stc->connection,
 752                                                           STC_DBUS_SERVICE_RESTRICTION_PATH,
 753                                                           STC_DBUS_INTERFACE_RESTRICTION,
 754                                                           "WarnThresholdCrossed",
 755                                                           g_variant_new("(si)", rstn_key->app_id, rstn_key->iftype));
 756                         if (rv == TRUE)
 757                                 rstn_value->warn_limit_crossed_notified = TRUE;
 758
 759                         snprintf(iftype, MAX_INT_LENGTH, "%d", rstn_key->iftype);
 760                         snprintf(byte, MAX_INT_LENGTH, "%lld", rstn_value->data_warn_limit);
 761                         stc_send_warn_message_to_net_popup("warn threshold crossed",
 762                                                            "warning_noti",
 763                                                            rstn_key->app_id,
 764                                                            iftype, byte);
 765                 }
 766
 767                 if (rstn_value->data_counter >= rstn_value->data_limit &&
 768                     rstn_value->rstn_limit_crossed_notified == FALSE) {
 769
 770                         gboolean rv;
 771                         char iftype[MAX_INT_LENGTH];
 772                         char byte[MAX_INT_LENGTH];
 773                         stc_s *stc = (stc_s *)stc_get_manager();
 774                         ret_value_msg_if(stc == NULL, FALSE, "failed to get stc data");
 775
 776                         /* block immediately */
 777                         context->counter->intend = NFACCT_BLOCK;
 778                         __del_iptables_in(context->counter);
 779                         __del_iptables_out(context->counter);
 780                         __add_iptables_in(context->counter);
 781                         __add_iptables_out(context->counter);
 782
 783                         __del_ip6tables_in(context->counter);
 784                         __del_ip6tables_out(context->counter);
 785                         __add_ip6tables_in(context->counter);
 786                         __add_ip6tables_out(context->counter);
 787                         context->counter->intend = NFACCT_COUNTER;
 788
 789                         rstn_value->data_limit_reached = TRUE;
 790
 791                         /* emit signal */
 792                         rv = stc_manager_dbus_emit_signal(stc->connection,
 793                                                           STC_DBUS_SERVICE_RESTRICTION_PATH,
 794                                                           STC_DBUS_INTERFACE_RESTRICTION,
 795                                                           "RestrictionThresholdCrossed",
 796                                                           g_variant_new("(si)", rstn_key->app_id, rstn_key->iftype));
 797                         if (rv == TRUE)
 798                                 rstn_value->rstn_limit_crossed_notified = TRUE;
 799
 800                         snprintf(iftype, MAX_INT_LENGTH, "%d", rstn_key->iftype);
 801                         snprintf(byte, MAX_INT_LENGTH, "%lld", rstn_value->data_limit);
 802                         stc_send_restriction_message_to_net_popup("restriction threshold crossed",
 803                                                                   "restriction_noti", rstn_key->app_id,
 804                                                                   iftype, byte);
 805                 }
 806
 807                 g_system->rstns_tree_updated = TRUE;
 808                 __print_rstn(rstn_key, rstn_value);
 809                 break;
 810         default:
 811                 STC_LOGE("unknown iotype");
 812         }
 813
 814         return FALSE;
 815 }
 816
 817 static gboolean __interface_rstn_counter_update(stc_rstn_key_s *rstn_key,
 818                                                 stc_rstn_value_s *rstn_value,
 819                                                 classid_bytes_context_s *context)
 820 {
 821         if ((rstn_value->classid == STC_TOTAL_DATACALL_CLASSID &&
 822              context->counter->iftype == STC_IFACE_DATACALL) ||
 823             (rstn_value->classid == STC_TOTAL_WIFI_CLASSID &&
 824              context->counter->iftype == STC_IFACE_WIFI) ||
 825             (rstn_value->classid == STC_TOTAL_BLUETOOTH_CLASSID &&
 826              context->counter->iftype == STC_IFACE_BLUETOOTH)) {
 827                 context->counter->classid = rstn_value->classid;
 828                 return __rstn_counter_update(rstn_key, rstn_value, context);
 829         }
 830
 831         return FALSE;
 832 }
 833
 834 static gboolean __rstn_counter_update_foreach_classid(gpointer key,
 835                                                       gpointer value,
 836                                                       gpointer data)
 837 {
 838         gboolean rv = FALSE;
 839         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 840         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 841         classid_bytes_context_s *context = (classid_bytes_context_s *)data;
 842         uint32_t classid;
 843
 844         if (context->counter->intend != NFACCT_COUNTER)
 845                 goto try_next_callback;
 846
 847         if (rstn_value->data_limit_reached == TRUE) {
 848                 context->data_limit_reached = TRUE;
 849                 goto try_next_callback;
 850         }
 851
 852         classid = context->counter->classid;
 853         rv = __interface_rstn_counter_update(rstn_key, rstn_value, context);
 854
 855         context->counter->classid = classid;
 856         if (rstn_value->classid != context->counter->classid)
 857                 goto try_next_callback;
 858
 859         rv = __rstn_counter_update(rstn_key, rstn_value, context);
 860
 861 try_next_callback:
 862         return rv;
 863 }
 864
 865 static gboolean __update_app_statistics(gpointer key, gpointer value,
 866                                         gpointer data)
 867 {
 868         stc_app_key_s *app_key = (stc_app_key_s *)key;
 869         stc_app_value_s *app_value = (stc_app_value_s *)value;
 870         time_t *touch_time = (time_t *)data;
 871         stc_db_classid_iftype_key stat_key;
 872         stc_db_app_stats stat;
 873         default_connection_s *default_connection = stc_get_default_connection();
 874
 875         memset(&stat_key, 0, sizeof(stc_db_classid_iftype_key));
 876         memset(&stat, 0 , sizeof(stc_db_app_stats));
 877
 878         stat_key.classid = app_value->classid;
 879         stat_key.iftype = default_connection->type;
 880
 881         if (STC_IFACE_DATACALL == stat_key.iftype)
 882                 stat_key.subscriber_id = g_strdup(default_connection->subscriber_id);
 883         else
 884                 stat_key.subscriber_id = g_strdup("none_subid");
 885
 886         g_strlcpy(stat_key.ifname, default_connection->ifname,
 887                   MAX_IFACE_LENGTH);
 888
 889         stat.app_id = g_strdup(app_key->app_id);
 890         stat.snd_count = app_value->counter.out_bytes;
 891         stat.rcv_count = app_value->counter.in_bytes;
 892         stat.is_roaming = default_connection->roaming;
 893
 894         if (strstr(stat.app_id, "_BACKGROUND")) {
 895                 stat.ground = STC_APP_STATE_BACKGROUND;
 896         } else {
 897                 if (strstr(stat.app_id, "TOTAL_"))
 898                         stat.ground = STC_APP_STATE_UNKNOWN;
 899                 else
 900                         stat.ground = STC_APP_STATE_FOREGROUND;
 901         }
 902
 903         table_statistics_insert(&stat_key, &stat, *touch_time);
 904
 905         app_value->counter.out_bytes = 0;
 906         app_value->counter.in_bytes = 0;
 907
 908         FREE(stat.app_id);
 909         FREE(stat_key.subscriber_id);
 910
 911         return FALSE;
 912 }
 913
 914 static gboolean __flush_apps_stats_to_database(gpointer user_data)
 915 {
 916         time_t current_time = time(0);
 917
 918         if (g_system->apps_tree_updated == FALSE)
 919                 return G_SOURCE_REMOVE;
 920
 921         g_system->apps_tree_updated = FALSE;
 922
 923         if (g_system->apps)
 924                 g_tree_foreach(g_system->apps,
 925                                __update_app_statistics,
 926                                &current_time);
 927
 928         STC_LOGI("Flushed app stats to database");
 929         return G_SOURCE_REMOVE;
 930 }
 931
 932 static gboolean __update_counter_statistics(gpointer key, gpointer value,
 933                                             gpointer data)
 934 {
 935         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 936         table_counters_info info = {
 937                 .restriction_id = rstn_value->restriction_id,
 938                 .data_counter = rstn_value->data_counter
 939         };
 940
 941         table_counters_update_counters(&info);
 942
 943         return FALSE;
 944 }
 945
 946 static gboolean __flush_rstns_counter_to_database(gpointer user_data)
 947 {
 948         time_t current_time = time(0);
 949
 950         if (g_system->rstns_tree_updated == FALSE)
 951                 return G_SOURCE_REMOVE;
 952
 953         g_system->rstns_tree_updated = FALSE;
 954
 955         if (g_system->rstns)
 956                 g_tree_foreach(g_system->rstns,
 957                                __update_counter_statistics,
 958                                &current_time);
 959
 960         STC_LOGI("Flushed rstns counters to database");
 961         return G_SOURCE_REMOVE;
 962 }
 963
 964 static void __app_counter_update(stc_app_key_s *app_key,
 965                                  stc_app_value_s *app_value,
 966                                  classid_bytes_context_s *context)
 967 {
 968         switch (context->counter->iotype) {
 969         case NFACCT_COUNTER_IN:
 970                 app_value->data_usage.in_bytes += context->bytes;
 971                 app_value->counter.in_bytes = context->bytes;
 972                 g_system->apps_tree_updated = TRUE;
 973
 974                 if (STC_DEBUG_LOG)
 975                         __apps_tree_foreach_print(app_key, app_value, NULL);
 976                 break;
 977         case NFACCT_COUNTER_OUT:
 978                 app_value->data_usage.out_bytes += context->bytes;
 979                 app_value->counter.out_bytes = context->bytes;
 980                 g_system->apps_tree_updated = TRUE;
 981
 982                 if (STC_DEBUG_LOG)
 983                         __apps_tree_foreach_print(app_key, app_value, NULL);
 984                 break;
 985         default:
 986                 STC_LOGE("unknown iotype");
 987         }
 988 }
 989
 990 static void __interface_counter_update(stc_app_key_s *app_key,
 991                                        stc_app_value_s *app_value,
 992                                        classid_bytes_context_s *context)
 993 {
 994         if ((app_value->classid == STC_TOTAL_DATACALL_CLASSID &&
 995              context->counter->iftype == STC_IFACE_DATACALL) ||
 996             (app_value->classid == STC_TOTAL_WIFI_CLASSID &&
 997              context->counter->iftype == STC_IFACE_WIFI) ||
 998             (app_value->classid == STC_TOTAL_BLUETOOTH_CLASSID &&
 999              context->counter->iftype == STC_IFACE_BLUETOOTH))
1000                 __app_counter_update(app_key, app_value, context);
1001 }
1002
1003
1004 static gboolean __apps_counter_update_foreach_classid(gpointer key,
1005                                                       gpointer value,
1006                                                       gpointer data)
1007 {
1008         stc_app_key_s *app_key = (stc_app_key_s *)key;
1009         stc_app_value_s *app_value = (stc_app_value_s *)value;
1010         classid_bytes_context_s *context = (classid_bytes_context_s *)data;
1011
1012         if (context->counter->intend != NFACCT_COUNTER)
1013                 goto try_next_callback;
1014
1015         __interface_counter_update(app_key, app_value, context);
1016
1017         if (app_value->classid != context->counter->classid)
1018                 goto try_next_callback;
1019
1020         __app_counter_update(app_key, app_value, context);
1021
1022 try_next_callback:
1023         return FALSE;
1024 }
1025
1026 static void __fill_nfacct_result(char *cnt_name, int64_t bytes,
1027                                  struct counter_arg *carg)
1028 {
1029         struct nfacct_rule counter = {
1030                 .carg = carg,
1031                 .name = {0},
1032                 .ifname = {0},
1033                 0
1034         };
1035
1036         classid_bytes_context_s context = {
1037                 .counter = &counter,
1038                 .bytes = bytes,
1039                 .data_limit_reached = FALSE,
1040         };
1041
1042         if (STC_DEBUG_LOG)
1043                 STC_LOGD("cnt_name %s", cnt_name);
1044
1045         if (!recreate_counter_by_name(cnt_name, &counter)) {
1046                 STC_LOGE("Can't parse counter name %s", cnt_name);
1047                 return;
1048         }
1049
1050         STC_LOGI("classid %lu, iftype %u, iotype %d, intend %d, ifname %s, bytes %lld",
1051                  context.counter->classid, context.counter->iftype,
1052                  context.counter->iotype, context.counter->intend,
1053                  context.counter->ifname, context.bytes);
1054
1055         if (g_system->rstns)
1056                 g_tree_foreach(g_system->rstns,
1057                                __rstn_counter_update_foreach_classid,
1058                                &context);
1059
1060         if (g_system->apps)
1061                 g_tree_foreach(g_system->apps,
1062                                __apps_counter_update_foreach_classid,
1063                                &context);
1064 }
1065
1066 static int __fill_counters(struct rtattr *attr_list[__NFACCT_MAX],
1067                            void *user_data)
1068 {
1069         struct counter_arg *carg = user_data;
1070         char *cnt_name = (char *)RTA_DATA(attr_list[NFACCT_NAME]);
1071         if (carg->initiate) {
1072                 /**
1073                  * TODO: this will be used when daemon starts to update existing
1074                  * counter data if present.
1075                  *
1076                  populate_counters(cnt_name, carg);
1077                  */
1078         } else {
1079                 int64_t *bytes_p =
1080                         (int64_t *)RTA_DATA(attr_list[NFACCT_BYTES]);
1081                 int bytes = be64toh(*bytes_p);
1082                 if (bytes) {
1083                         ++carg->serialized_counters;
1084                         __fill_nfacct_result(cnt_name, bytes, carg);
1085                 }
1086         }
1087
1088         return 0;
1089 }
1090
1091 static int __post_fill_counters(void *user_data)
1092 {
1093         struct counter_arg *carg = user_data;
1094
1095         if (carg->initiate)
1096                 carg->initiate = 0;
1097
1098         return 0;
1099 }
1100
1101 static void __process_network_counter(struct genl *ans,
1102                                       struct counter_arg *carg)
1103 {
1104         struct netlink_serialization_params ser_params = {
1105                 .carg = carg,
1106                 .ans = ans,
1107                 .eval_attr = __fill_counters,
1108                 .post_eval_attr = __post_fill_counters,
1109         };
1110
1111         netlink_serialization_command *netlink =
1112                 netlink_create_command(&ser_params);
1113         if (!netlink) {
1114                 STC_LOGE("Can not create command");
1115                 return;
1116         }
1117
1118         netlink->deserialize_answer(&(netlink->params));
1119 }
1120
1121 static gboolean __process_contr_reply(GIOChannel *source,
1122                                       GIOCondition condition,
1123                                       gpointer user_data)
1124 {
1125         int sock = g_io_channel_unix_get_fd(source);
1126         struct genl *ans;
1127         int ret;
1128         stc_s *stc = stc_get_manager();
1129
1130         if ((condition & G_IO_ERR) || (condition & G_IO_HUP) ||
1131             (condition & G_IO_NVAL)) {
1132                 /* G_IO_ERR/G_IO_HUP/G_IO_NVAL received */
1133
1134                 STC_LOGE("Counter socket received G_IO event, closing socket."
1135                          "G_IO_ERR [%d], G_IO_HUP [%d], G_IO_NVAL [%s]",
1136                          (condition & G_IO_ERR), (condition & G_IO_HUP),
1137                          (condition & G_IO_NVAL));
1138                 __close_and_reopen_contr_sock(g_system);
1139                 return FALSE;
1140         }
1141
1142         ans = MALLOC0(struct genl, 1);
1143         if (ans == NULL) {
1144                 STC_LOGE("Failed allocate memory to genl reply message");
1145                 return TRUE;
1146         }
1147
1148         if (stc == NULL) {
1149                 STC_LOGE("Can't get stc data");
1150                 goto out;
1151         }
1152
1153         ret = read_netlink(sock, ans, sizeof(struct genl));
1154         /* STC_LOGD("Counter data received ret [%d]", ret); */
1155         if (ret == 0)
1156                 goto out;
1157
1158         stc->carg->ans_len = ret;
1159         __process_network_counter(ans, stc->carg);
1160
1161         g_idle_add(__flush_apps_stats_to_database, NULL);
1162         g_idle_add(__flush_rstns_counter_to_database, NULL);
1163 out:
1164         FREE(ans);
1165         return TRUE;
1166 }
1167
1168 static gboolean __update_contr_cb(void *user_data)
1169 {
1170         /* Here we just sent command, answer we receive in another callback */
1171         stc_s *stc = stc_get_manager();
1172         ret_value_msg_if(stc == NULL, STC_ERROR_FAIL, "Can't get stc data");
1173         if (!stc->carg) {
1174                 stc->carg = MALLOC0(counter_arg_s, 1);
1175                 if (stc->carg == NULL)
1176                         return TRUE;  /* we need to continue the timer */
1177
1178                 stc->carg->sock = stc_monitor_get_counter_socket();
1179         }
1180
1181         /* STC_LOGD("Get all counters"); */
1182         nfacct_send_get_all(stc->carg);
1183
1184         /* we need to continue the timer */
1185         return TRUE;
1186 }
1187 #if 0
1188 static gboolean __rstn_tree_foreach_print(gpointer key, gpointer value,
1189                                           gpointer data)
1190 {
1191         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1192         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1193
1194         __print_rstn(rstn_key, rstn_value);
1195         return FALSE;
1196 }
1197
1198 static void __rstn_tree_printall(void)
1199 {
1200         g_tree_foreach(g_system->rstns, __rstn_tree_foreach_print, NULL);
1201 }
1202 #endif
1203 static stc_rstn_value_s * __rstn_lookup(GTree *rstns_tree,
1204                                         const stc_rstn_key_s *key)
1205 {
1206         stc_rstn_value_s *lookup;
1207
1208         ret_value_msg_if(rstns_tree == NULL, NULL, "rstns_tree is null!");
1209
1210         lookup = g_tree_lookup(rstns_tree, key);
1211
1212         return lookup;
1213 }
1214
1215 static gboolean __remove_restriction(gpointer key, gpointer value,
1216                                      gpointer data)
1217 {
1218         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1219         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1220
1221         /* rstn rule is already removed */
1222         if (rstn_value->rst_state == STC_RESTRICTION_REMOVED)
1223                 return FALSE;
1224
1225         __process_restriction(RST_UNSET, rstn_key, rstn_value, data);
1226         __print_rstn(rstn_key, rstn_value);
1227         return FALSE;
1228 }
1229
1230 static gboolean __add_restriction_debug(gpointer key, gpointer value,
1231                                         gpointer data)
1232 {
1233         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1234         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1235
1236         /* rstn rule is activated */
1237         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1238                 return FALSE;
1239
1240         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1241                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1242         else
1243                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1244
1245         __print_rstn(rstn_key, rstn_value);
1246
1247         return FALSE;
1248 }
1249
1250 static gboolean __add_restriction(gpointer key, gpointer value, gpointer data)
1251 {
1252         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1253         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1254
1255         /* rstn rule is activated */
1256         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1257                 return FALSE;
1258
1259         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1260                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1261         else
1262                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1263
1264         return FALSE;
1265 }
1266
1267 static stc_error_e __rstn_tree_remove(stc_rstn_key_s *key)
1268 {
1269         stc_rstn_value_s *lookup_value;
1270
1271         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1272
1273         lookup_value = __rstn_lookup(g_system->rstns, key);
1274         if (!lookup_value) {
1275                 STC_LOGE("key not found");
1276                 return STC_ERROR_NO_DATA;
1277         }
1278
1279         __remove_restriction(key, lookup_value, NULL);
1280
1281         /* remove counter also */
1282         table_counters_delete(lookup_value->restriction_id);
1283
1284         if (!g_tree_remove(g_system->rstns, key)) {
1285                 STC_LOGD("key not found");
1286                 return STC_ERROR_NO_DATA;
1287         }
1288
1289         return STC_ERROR_NONE;
1290 }
1291
1292 static stc_error_e __rstn_tree_add(stc_rstn_key_s *key,
1293                                    stc_rstn_value_s *value, gboolean debug)
1294 {
1295         stc_rstn_value_s *rstn_value;
1296
1297         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1298
1299         rstn_value = __rstn_lookup(g_system->rstns, key);
1300         if (!rstn_value) {
1301                 stc_rstn_key_s *rstn_key = MALLOC0(stc_rstn_key_s, 1);
1302                 if (!rstn_key) {
1303                         STC_LOGE("rstn_key allocation failed");
1304                         return STC_ERROR_OUT_OF_MEMORY;
1305                 }
1306
1307                 rstn_value = MALLOC0(stc_rstn_value_s, 1);
1308                 if (!rstn_value) {
1309                         STC_LOGE("rstn_value allocation failed");
1310                         FREE(rstn_key);
1311                         return STC_ERROR_OUT_OF_MEMORY;
1312                 }
1313
1314                 rstn_key->app_id = g_strdup(key->app_id);
1315                 rstn_key->ifname = g_strdup(key->ifname);
1316                 rstn_key->subscriber_id = g_strdup(key->subscriber_id);
1317                 rstn_key->iftype = key->iftype;
1318                 rstn_key->roaming = key->roaming;
1319
1320                 g_tree_insert(g_system->rstns, rstn_key, rstn_value);
1321         }
1322
1323         rstn_value->restriction_id = value->restriction_id;
1324         rstn_value->rst_state = value->rst_state;
1325         rstn_value->classid = value->classid;
1326         rstn_value->data_limit = value->data_limit;
1327         rstn_value->data_warn_limit = value->data_warn_limit;
1328         rstn_value->data_counter = 0;
1329         rstn_value->warn_limit_crossed_notified = FALSE;
1330         rstn_value->rstn_limit_crossed_notified = FALSE;
1331
1332         if (debug == TRUE)
1333                 __add_restriction_debug(key, rstn_value, NULL);
1334         else
1335                 __add_restriction(key, rstn_value, NULL);
1336
1337         return STC_ERROR_NONE;
1338 }
1339
1340 static stc_cb_ret_e __insert_restriction_cb(const table_restrictions_info *info,
1341                                             void *user_data)
1342 {
1343         stc_cb_ret_e ret = STC_CONTINUE;
1344
1345         stc_rstn_key_s key;
1346         stc_rstn_value_s value;
1347
1348         memset(&key, 0, sizeof(stc_rstn_key_s));
1349         memset(&value, 0, sizeof(stc_rstn_value_s));
1350
1351         key.app_id = g_strdup(info->app_id);
1352         key.ifname = g_strdup(info->ifname);
1353         key.subscriber_id = g_strdup(info->subscriber_id);
1354         key.iftype = info->iftype;
1355         key.roaming = info->roaming;
1356
1357         value.rst_state = info->rst_state;
1358         value.restriction_id = info->restriction_id;
1359
1360         if (value.rst_state != STC_RESTRICTION_EXCLUDED && info->app_id)
1361                 value.classid = get_classid_by_app_id(info->app_id, TRUE);
1362         else
1363                 value.classid = STC_UNKNOWN_CLASSID;
1364
1365         value.data_limit = info->data_limit;
1366         value.data_warn_limit = info->data_warn_limit;
1367
1368         if (__rstn_tree_add(&key, &value, FALSE) != STC_ERROR_NONE)
1369                 ret = STC_CANCEL;
1370
1371         FREE(key.app_id);
1372         FREE(key.ifname);
1373         FREE(key.subscriber_id);
1374         return ret;
1375 }
1376
1377 static void __fill_restritions_list(void)
1378 {
1379         table_restrictions_foreach(__insert_restriction_cb, NULL);
1380         //__rstn_tree_printall();
1381 }
1382
1383 static gboolean __add_rstn_foreach_application(gpointer key,
1384                                                gpointer value,
1385                                                gpointer data)
1386 {
1387         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1388         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1389         gchar *app_id = (gchar *)data;
1390
1391         /* rstn rule is not for applications */
1392         if (rstn_key->app_id == NULL)
1393                 goto out;
1394
1395         /* rstn rule is not for this application */
1396         if (g_strcmp0(rstn_key->app_id, app_id) != 0)
1397                 goto out;
1398
1399         /* rstn rule is already applied */
1400         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1401                 goto out;
1402
1403         /* add restriction to system */
1404         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1405                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1406         else
1407                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1408
1409         __print_rstn(rstn_key, rstn_value);
1410 out:
1411         return FALSE;
1412 }
1413
1414 static void __add_rstns_for_application(gchar *app_id)
1415 {
1416         g_tree_foreach(g_system->rstns, __add_rstn_foreach_application,
1417                        app_id);
1418 }
1419
1420 static void __add_application_by_interface(const char *app_id)
1421 {
1422         stc_app_key_s app_key;
1423         stc_app_value_s app_value;
1424
1425         if (app_id == NULL)
1426                 return;
1427
1428         memset(&app_key, 0, sizeof(stc_app_key_s));
1429         memset(&app_value, 0, sizeof(stc_app_value_s));
1430
1431         app_key.pkg_id = g_strdup(app_id);
1432         app_key.app_id = g_strdup(app_id);
1433
1434         app_value.type = STC_APP_TYPE_NONE;
1435         app_value.processes = NULL;
1436         app_value.counter.in_bytes = 0;
1437         app_value.counter.out_bytes = 0;
1438
1439         stc_monitor_application_add(app_key, app_value);
1440
1441         FREE(app_key.pkg_id);
1442         FREE(app_key.app_id);
1443 }
1444
1445 static int __vconf_get_int(const char *key, int *value)
1446 {
1447         int ret = 0;
1448
1449         ret = vconf_get_int(key, value);
1450         if (ret != VCONF_OK) {
1451                 STC_LOGE("Failed to get vconfkey [%s] value", key);
1452                 return -1;
1453         }
1454
1455         return 0;
1456 }
1457
1458 static int __vconf_set_int(const char *key, int value)
1459 {
1460         int ret = 0;
1461
1462         ret = vconf_set_int(key, value);
1463         if (ret != VCONF_OK) {
1464                 STC_LOGE("Failed to set vconfkey [%s] value", key);
1465                 return -1;
1466         }
1467
1468         return 0;
1469 }
1470
1471 static guint __get_background_state(void)
1472 {
1473         return g_system->background_state;;
1474 }
1475
1476 static void __set_background_state(guint state)
1477 {
1478         g_system->background_state = state;
1479 }
1480
1481 static gboolean __processes_tree_foreach_background(gpointer key,
1482                                                     gpointer value,
1483                                                     gpointer data)
1484 {
1485         stc_process_key_s *proc_key = (stc_process_key_s *)key;
1486         stc_app_key_s *app_key = (stc_app_key_s *)data;
1487
1488         if (g_system->background_state)
1489                 place_pids_to_net_cgroup(proc_key->pid, STC_BACKGROUND_APP_ID);
1490         else
1491                 place_pids_to_net_cgroup(proc_key->pid, app_key->app_id);
1492
1493         return FALSE;
1494 }
1495
1496 static gboolean __apps_tree_foreach_background(gpointer key, gpointer value,
1497                                         gpointer data)
1498 {
1499         stc_app_key_s *app_key = (stc_app_key_s *)key;
1500         stc_app_value_s *app_value = (stc_app_value_s *)value;
1501
1502         if (strstr(app_key->app_id, STC_BACKGROUND_APP_SUFFIX))
1503                 g_tree_foreach(app_value->processes,
1504                                __processes_tree_foreach_background, app_key);
1505
1506         return FALSE;
1507 }
1508
1509 static stc_error_e __process_update_background(void)
1510 {
1511         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1512
1513         g_tree_foreach(g_system->apps, __apps_tree_foreach_background, NULL);
1514
1515         return STC_ERROR_NONE;
1516 }
1517
1518 #if 0
1519 static void __excn_hash_foreach_print(gpointer key, gpointer value,
1520                                           gpointer data)
1521 {
1522         const char *process_name = key;
1523         const char *exe_type = value;
1524
1525         STC_LOGI("excn info => process_name [%s] exe_type [%s]",
1526                 process_name, exe_type);
1527 }
1528
1529 static void __excn_hash_printall(void)
1530 {
1531         g_hash_table_foreach(g_system->excns_hash,
1532                 __excn_hash_foreach_print, NULL);
1533 }
1534 #endif
1535
1536 static gboolean __remove_exception_app(gpointer key, gpointer value,
1537                                         gpointer data)
1538 {
1539         const char *exe_type = value;
1540
1541         if (g_strcmp0(exe_type, EXE_TYPE_APPLICATION) == 0)
1542                 return TRUE;
1543
1544         return FALSE;
1545 }
1546
1547 static void __remove_exception_appall(void)
1548 {
1549         g_hash_table_foreach_remove(g_system->excns_hash,
1550                 __remove_exception_app, NULL);
1551 }
1552
1553 static stc_cb_ret_e __insert_exception_cb(const stc_exceptions_info *info,
1554                                             void *user_data)
1555 {
1556         stc_cb_ret_e ret = STC_CONTINUE;
1557
1558         if (g_hash_table_insert(g_system->excns_hash,
1559                         g_strdup(info->process_name),
1560                         g_strdup(info->exe_type)) != TRUE)
1561                 ret = STC_CANCEL;
1562
1563         return ret;
1564 }
1565
1566 static void __fill_exceptions_list(void)
1567 {
1568         table_exceptions_foreach(__insert_exception_cb, NULL);
1569         pkginfo_exceptions_foreach(__insert_exception_cb, NULL);
1570
1571         /* __excn_hash_printall(); */
1572 }
1573
1574 static gboolean __update_exceptions_app_list(void *user_data)
1575 {
1576         __remove_exception_appall();
1577         pkginfo_exceptions_foreach(__insert_exception_cb, NULL);
1578
1579         /* __excn_hash_printall(); */
1580
1581         return TRUE;
1582 }
1583
1584 stc_error_e stc_monitor_init(void)
1585 {
1586         stc_system_s *system = MALLOC0(stc_system_s, 1);
1587         GIOChannel *gio = NULL;
1588
1589         ret_value_msg_if(system == NULL, STC_ERROR_OUT_OF_MEMORY, "stc_system_s malloc fail!");
1590
1591         /* initializing current classid */
1592         init_current_classid();
1593
1594         /* initializing cgroups */
1595         cgroup_init();
1596
1597         /* creating monitored application tree */
1598         system->apps = g_tree_new_full(__apps_tree_key_compare, NULL,
1599                                        __apps_tree_key_free,
1600                                        __apps_tree_value_free);
1601
1602         system->rstns = g_tree_new_full(__rstns_tree_key_compare, NULL,
1603                                         __rstns_tree_key_free,
1604                                         __rstns_tree_value_free);
1605
1606         system->excns_hash = g_hash_table_new_full(g_str_hash,
1607                                         g_str_equal, g_free, g_free);
1608
1609         /* create netlink socket for updating kernel counters */
1610         system->contr_sock = create_netlink(NETLINK_NETFILTER, 0);
1611         if (system->contr_sock < 0) {
1612                 STC_LOGE("failed to open socket");
1613                 FREE(system);
1614                 return STC_ERROR_FAIL;
1615         }
1616
1617         gio = g_io_channel_unix_new(system->contr_sock);
1618         system->contr_gsource_id =
1619                 g_io_add_watch(gio, G_IO_IN | G_IO_ERR | G_IO_HUP,
1620                                (GIOFunc) __process_contr_reply,
1621                                NULL);
1622         g_io_channel_unref(gio);
1623
1624         g_system = system;
1625
1626         __add_application_by_interface(STC_TOTAL_DATACALL);
1627         __add_application_by_interface(STC_TOTAL_WIFI);
1628         __add_application_by_interface(STC_TOTAL_BLUETOOTH);
1629         __add_application_by_interface(STC_TOTAL_IPV4);
1630         __add_application_by_interface(STC_TOTAL_IPV6);
1631
1632         /* creating restriction rules tree */
1633         __update_contr_cb(NULL);
1634
1635         /* registering periodic kernel counters update callback */
1636         g_system->contr_timer_id = g_timeout_add_seconds(CONTR_TIMER_INTERVAL,
1637                                                          __update_contr_cb,
1638                                                          NULL);
1639         if (g_system->contr_timer_id == 0) {
1640                 STC_LOGE("Failed to register kernel counters update timer");
1641                 __close_contr_sock(g_system);
1642                 return STC_ERROR_FAIL;
1643         }
1644
1645         __vconf_get_int(VCONFKEY_STC_BACKGROUND_STATE,
1646                         (int *)&g_system->background_state);
1647
1648         __fill_exceptions_list();
1649         __fill_restritions_list();
1650
1651         g_system->excns_timer_id = g_timeout_add_seconds(EXCNS_TIMER_INTERVAL,
1652                                                          __update_exceptions_app_list,
1653                                                          NULL);
1654
1655         return STC_ERROR_NONE;
1656 }
1657
1658 stc_error_e stc_monitor_deinit(void)
1659 {
1660         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1661
1662         /* close netlink socket for updating kernel counters */
1663         __close_contr_sock(g_system);
1664
1665         /* remove kernel counters update timer */
1666         if (g_system->contr_timer_id > 0) {
1667                 g_source_remove(g_system->contr_timer_id);
1668                 g_system->contr_timer_id = 0;
1669         }
1670
1671         /* remove exceptions app list update timer */
1672         if (g_system->excns_timer_id > 0) {
1673                 g_source_remove(g_system->excns_timer_id);
1674                 g_system->excns_timer_id = 0;
1675         }
1676
1677         /* destroy monitored application tree */
1678         g_tree_destroy(g_system->apps);
1679         g_system->apps = NULL;
1680
1681         /* destroy restriction rules tree */
1682         g_tree_destroy(g_system->rstns);
1683         g_system->rstns = NULL;
1684
1685         /* destroy exception hash table */
1686         g_hash_table_destroy(g_system->excns_hash);
1687         g_system->excns_hash = NULL;
1688
1689         FREE(g_system);
1690
1691         return STC_ERROR_NONE;
1692 }
1693
1694 stc_error_e stc_monitor_application_add(const stc_app_key_s app_key,
1695                                         const stc_app_value_s app_value)
1696 {
1697         stc_error_e ret = STC_ERROR_NONE;
1698         stc_app_key_s *key;
1699         stc_app_value_s *value;
1700         stc_app_value_s *lookup;
1701
1702         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1703
1704         lookup = __application_lookup(g_system->apps, &app_key);
1705         if (lookup) {
1706                 STC_LOGD("app_key already present");
1707                 return STC_ERROR_NONE;
1708         }
1709
1710         key = MALLOC0(stc_app_key_s, 1);
1711         if (!key) {
1712                 STC_LOGE("key allocation failed");
1713                 return STC_ERROR_OUT_OF_MEMORY;
1714         }
1715
1716         value = MALLOC0(stc_app_value_s, 1);
1717         if (!value) {
1718                 STC_LOGE("value allocation failed");
1719                 FREE(key);
1720                 return STC_ERROR_OUT_OF_MEMORY;
1721         }
1722
1723         key->app_id = g_strdup(app_key.app_id);
1724         key->pkg_id = g_strdup(app_key.pkg_id);
1725
1726         value->type = app_value.type;
1727         value->data_usage.in_bytes = app_value.data_usage.in_bytes;
1728         value->data_usage.out_bytes = app_value.data_usage.out_bytes;
1729
1730         value->processes = g_tree_new_full(__processes_tree_key_compare, NULL,
1731                                            __processes_tree_key_free,
1732                                            __processes_tree_value_free);
1733
1734         /* create cgroup and update classid */
1735         value->classid = get_classid_by_app_id(app_key.app_id, TRUE);
1736
1737         g_tree_insert(g_system->apps, key, value);
1738
1739         /* add nfacct rule for this classid */
1740         __add_application_monitor(key, value, stc_get_default_connection());
1741         __add_rstns_for_application(app_key.app_id);
1742
1743         return ret;
1744 }
1745
1746 stc_error_e stc_monitor_process_add(const stc_app_key_s app_key,
1747                                     const stc_process_key_s proc_key,
1748                                     const stc_process_value_s proc_value)
1749 {
1750         stc_error_e ret = STC_ERROR_NONE;
1751         stc_app_value_s *app_lookup;
1752         stc_process_key_s *key;
1753         stc_process_value_s *value;
1754         stc_process_value_s *proc_lookup;
1755
1756         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1757
1758         app_lookup = __application_lookup(g_system->apps, &app_key);
1759         if (!app_lookup) {
1760                 STC_LOGD("app_key not found");
1761                 return STC_ERROR_FAIL;
1762         }
1763
1764         proc_lookup = __process_lookup(app_lookup->processes, &proc_key);
1765         if (proc_lookup) {
1766                 STC_LOGD("proc_key already present");
1767                 return STC_ERROR_NONE;
1768         }
1769
1770         key = MALLOC0(stc_process_key_s, 1);
1771         if (!key) {
1772                 STC_LOGE("key allocation failed");
1773                 return STC_ERROR_OUT_OF_MEMORY;
1774         }
1775
1776         value = MALLOC0(stc_process_value_s, 1);
1777         if (!value) {
1778                 STC_LOGE("value allocation failed");
1779                 FREE(key);
1780                 return STC_ERROR_OUT_OF_MEMORY;
1781         }
1782
1783         key->pid = proc_key.pid;
1784
1785         value->ground = proc_value.ground;
1786
1787         g_tree_insert(app_lookup->processes, key, value);
1788
1789         /* add pid to application cgroup */
1790         place_pids_to_net_cgroup(proc_key.pid, app_key.app_id);
1791
1792         if (STC_DEBUG_LOG)
1793                 __apps_tree_printall();
1794
1795         return ret;
1796 }
1797
1798 stc_error_e stc_monitor_process_remove(pid_t pid)
1799 {
1800         stc_error_e ret = STC_ERROR_NONE;
1801         stc_process_key_s proc_key = {
1802                 .pid = pid
1803         };
1804
1805         remove_pid_context_s context = {
1806                 .app_key = NULL,
1807                 .proc_key = &proc_key,
1808                 .entry_removed = FALSE,
1809         };
1810
1811         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1812
1813         g_tree_foreach(g_system->apps, __apps_tree_foreach_remove_pid,
1814                        &context);
1815
1816         if (context.entry_removed)
1817                 __application_remove_if_empty(context.app_key);
1818
1819         if (STC_DEBUG_LOG)
1820                 __apps_tree_printall();
1821
1822         return ret;
1823 }
1824
1825 stc_error_e stc_monitor_process_update_ground(const stc_app_key_s app_key,
1826                                               const stc_process_key_s proc_key,
1827                                               stc_app_state_e ground)
1828 {
1829         stc_error_e ret = STC_ERROR_NONE;
1830         stc_app_value_s *app_lookup;
1831         stc_process_value_s *proc_lookup;
1832
1833         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1834
1835         app_lookup = __application_lookup(g_system->apps, &app_key);
1836         if (!app_lookup) {
1837                 STC_LOGD("app_key not found");
1838                 return STC_ERROR_FAIL;
1839         }
1840
1841         proc_lookup = __process_lookup(app_lookup->processes, &proc_key);
1842         if (!proc_lookup) {
1843                 STC_LOGD("proc_key not found");
1844                 return STC_ERROR_FAIL;
1845         }
1846
1847         if (proc_lookup->ground != ground)
1848                 proc_lookup->ground = ground;
1849
1850         if (ground == STC_APP_STATE_BACKGROUND && __get_background_state())
1851                 place_pids_to_net_cgroup(proc_key.pid, STC_BACKGROUND_APP_ID);
1852         else
1853                 place_pids_to_net_cgroup(proc_key.pid, app_key.app_id);
1854
1855         return ret;
1856 }
1857
1858 void stc_monitor_update_rstn_by_default_connection(void *data)
1859 {
1860         static default_connection_s old_connection;
1861         default_connection_s *new_connection = (default_connection_s *)data;
1862
1863         if (old_connection.path != NULL) {
1864                 if (g_system->apps)
1865                         g_tree_foreach(g_system->apps,
1866                                        __remove_application_monitor,
1867                                        (gpointer)&old_connection);
1868
1869                 if (g_system->rstns)
1870                         g_tree_foreach(g_system->rstns,
1871                                        __remove_restriction,
1872                                        (gpointer)&old_connection);
1873         }
1874
1875         FREE(old_connection.path);
1876         FREE(old_connection.ifname);
1877         old_connection.type = 0;
1878         old_connection.roaming = 0;
1879
1880         if (new_connection != NULL && new_connection->path != NULL) {
1881                 if (g_system->apps)
1882                         g_tree_foreach(g_system->apps,
1883                                        __add_application_monitor,
1884                                        (gpointer)new_connection);
1885
1886                 if (g_system->rstns)
1887                         g_tree_foreach(g_system->rstns, __add_restriction,
1888                                        NULL);
1889
1890                 old_connection.path = g_strdup(new_connection->path);
1891                 old_connection.ifname = g_strdup(new_connection->ifname);
1892                 old_connection.type = new_connection->type;
1893                 old_connection.roaming = new_connection->roaming;
1894         }
1895 }
1896
1897 stc_error_e stc_monitor_rstns_tree_add(const table_restrictions_info *info)
1898 {
1899         stc_error_e ret;
1900
1901         stc_rstn_key_s key;
1902         stc_rstn_value_s value;
1903
1904         memset(&key, 0, sizeof(stc_rstn_key_s));
1905         memset(&value, 0, sizeof(stc_rstn_value_s));
1906
1907         key.app_id = g_strdup(info->app_id);
1908         key.ifname = g_strdup(info->ifname);
1909         key.subscriber_id = g_strdup(info->subscriber_id);
1910         key.iftype = info->iftype;
1911         key.roaming = info->roaming;
1912
1913         value.rst_state = info->rst_state;
1914         value.restriction_id = info->restriction_id;
1915
1916         if (value.rst_state != STC_RESTRICTION_EXCLUDED && info->app_id)
1917                 value.classid = get_classid_by_app_id(info->app_id, TRUE);
1918         else
1919                 value.classid = STC_UNKNOWN_CLASSID;
1920
1921         if (value.classid == STC_BACKGROUND_APP_CLASSID) {
1922                 __set_background_state(TRUE);
1923                 __vconf_set_int(VCONFKEY_STC_BACKGROUND_STATE, g_system->background_state);
1924                 __process_update_background();
1925         }
1926
1927         value.data_limit = info->data_limit;
1928         value.data_warn_limit = info->data_warn_limit;
1929
1930         ret = __rstn_tree_add(&key, &value, TRUE);
1931
1932         FREE(key.app_id);
1933         FREE(key.ifname);
1934         FREE(key.subscriber_id);
1935         return ret;
1936 }
1937
1938 stc_error_e stc_monitor_rstns_tree_remove(const table_restrictions_info *info)
1939 {
1940         stc_error_e ret;
1941
1942         stc_rstn_key_s key = {
1943                 .app_id = g_strdup(info->app_id),
1944                 .ifname = g_strdup(info->ifname),
1945                 .subscriber_id = g_strdup(info->subscriber_id),
1946                 .iftype = info->iftype,
1947                 .roaming = info->roaming,
1948         };
1949
1950         if (!strcmp(key.app_id, STC_BACKGROUND_APP_ID)) {
1951                 __set_background_state(FALSE);
1952                 __vconf_set_int(VCONFKEY_STC_BACKGROUND_STATE, g_system->background_state);
1953                 __process_update_background();
1954         }
1955
1956         ret = __rstn_tree_remove(&key);
1957
1958         FREE(key.app_id);
1959         FREE(key.ifname);
1960         FREE(key.subscriber_id);
1961         return ret;
1962 }
1963
1964 stc_error_e stc_monitor_check_excn_by_cmdline(char *cmdline)
1965 {
1966         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1967
1968         char *exe_type = NULL;
1969
1970         exe_type = g_hash_table_lookup(g_system->excns_hash, cmdline);
1971         if (!exe_type)
1972                 return STC_ERROR_NO_DATA;
1973
1974         return STC_ERROR_NONE;
1975 }
1976
1977 int stc_monitor_get_counter_socket(void)
1978 {
1979         return g_system->contr_sock;
1980 }