src/monitor/stc-monitor.c

   1 /*
   2  * Copyright (c) 2016 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include <linux/netlink.h>
  18
  19 #include "stc-default-connection.h"
  20 #include "helper-nl.h"
  21 #include "helper-nfacct-rule.h"
  22 #include "helper-net-cls.h"
  23 #include "helper-cgroup.h"
  24 #include "counter.h"
  25 #include "table-statistics.h"
  26 #include "table-counters.h"
  27 #include "stc-monitor.h"
  28 #include "stc-manager-plugin.h"
  29
  30 #define MAX_INT_LENGTH 128
  31
  32 typedef struct {
  33         stc_app_key_s *app_key;
  34         stc_process_key_s *proc_key;
  35         gboolean entry_removed;
  36 } remove_pid_context_s;
  37
  38 typedef struct {
  39         struct nfacct_rule *counter;
  40         int64_t bytes;
  41         gboolean data_limit_reached;
  42 } classid_bytes_context_s;
  43
  44 static stc_system_s *g_system = NULL;
  45
  46 static nfacct_rule_jump __get_jump_by_intend(struct nfacct_rule *counter)
  47 {
  48         if (counter->intend == NFACCT_WARN)
  49                 return NFACCT_JUMP_ACCEPT;
  50         else if (counter->intend == NFACCT_BLOCK)
  51                 return NFACCT_JUMP_REJECT;
  52
  53         return NFACCT_JUMP_UNKNOWN;
  54 }
  55
  56 static stc_error_e __add_iptables_in(struct nfacct_rule *counter)
  57 {
  58         return produce_net_rule(counter, 0, 0,
  59                 NFACCT_ACTION_INSERT, __get_jump_by_intend(counter),
  60                 NFACCT_COUNTER_IN);
  61 }
  62
  63 static stc_error_e __add_iptables_out(struct nfacct_rule *counter)
  64 {
  65         return produce_net_rule(counter, 0, 0,
  66                 NFACCT_ACTION_INSERT, __get_jump_by_intend(counter),
  67                 NFACCT_COUNTER_OUT);
  68 }
  69
  70 static stc_error_e __del_iptables_in(struct nfacct_rule *counter)
  71 {
  72         return produce_net_rule(counter, 0, 0,
  73                 NFACCT_ACTION_DELETE, __get_jump_by_intend(counter),
  74                 NFACCT_COUNTER_IN);
  75 }
  76
  77 static stc_error_e __del_iptables_out(struct nfacct_rule *counter)
  78 {
  79         return produce_net_rule(counter, 0, 0,
  80                 NFACCT_ACTION_DELETE, __get_jump_by_intend(counter),
  81                 NFACCT_COUNTER_OUT);
  82 }
  83
  84 static int __processes_tree_key_compare(gconstpointer a, gconstpointer b,
  85                                         gpointer UNUSED user_data)
  86 {
  87         stc_process_key_s *key_a = (stc_process_key_s *)a;
  88         stc_process_key_s *key_b = (stc_process_key_s *)b;
  89
  90         return key_a->pid - key_b->pid;
  91 }
  92
  93 static void __processes_tree_value_free(gpointer data)
  94 {
  95         stc_process_value_s *value = (stc_process_value_s *)data;
  96
  97         FREE(value);
  98 }
  99
 100 static void __processes_tree_key_free(gpointer data)
 101 {
 102         stc_process_key_s *key = (stc_process_key_s *)data;
 103
 104         FREE(key);
 105 }
 106
 107 static int __apps_tree_key_compare(gconstpointer a, gconstpointer b,
 108                                    gpointer UNUSED user_data)
 109 {
 110         stc_app_key_s *key_a = (stc_app_key_s *)a;
 111         stc_app_key_s *key_b = (stc_app_key_s *)b;
 112         gint ret;
 113
 114         ret = g_strcmp0(key_a->pkg_id, key_b->pkg_id);
 115         if (ret)
 116                 return ret;
 117
 118         return g_strcmp0(key_a->app_id, key_b->app_id);
 119 }
 120
 121 static void __apps_tree_value_free(gpointer data)
 122 {
 123         stc_app_value_s *value = (stc_app_value_s *)data;
 124
 125         g_tree_destroy(value->processes);
 126         value->processes = NULL;
 127
 128         FREE(value);
 129 }
 130
 131 static void __apps_tree_key_free(gpointer data)
 132 {
 133         stc_app_key_s *key = (stc_app_key_s *)data;
 134
 135         g_free(key->pkg_id);
 136         g_free(key->app_id);
 137         FREE(key);
 138 }
 139
 140 static int __rstns_tree_key_compare(gconstpointer a, gconstpointer b,
 141                                     gpointer UNUSED user_data)
 142 {
 143         stc_rstn_key_s *key_a = (stc_rstn_key_s *)a;
 144         stc_rstn_key_s *key_b = (stc_rstn_key_s *)b;
 145         int ret;
 146
 147         ret = g_strcmp0(key_a->app_id, key_b->app_id);
 148         if (ret != 0)
 149                 return ret;
 150
 151         ret = g_strcmp0(key_a->ifname, key_b->ifname);
 152         if (ret != 0)
 153                 return ret;
 154
 155         ret = g_strcmp0(key_a->imsi, key_b->imsi);
 156         if (ret != 0)
 157                 return ret;
 158
 159         ret = key_a->iftype - key_b->iftype;
 160         if (ret != 0)
 161                 return ret;
 162
 163         return 0;
 164 }
 165
 166 static void __rstns_tree_value_free(gpointer data)
 167 {
 168         stc_rstn_value_s *value = (stc_rstn_value_s *)data;
 169
 170         FREE(value);
 171 }
 172
 173 static void __rstns_tree_key_free(gpointer data)
 174 {
 175         stc_rstn_key_s *key = (stc_rstn_key_s *)data;
 176
 177         FREE(key->app_id);
 178         FREE(key->ifname);
 179         FREE(key->imsi);
 180         FREE(key);
 181 }
 182
 183 static gboolean __processes_tree_foreach_print(gpointer key, gpointer value,
 184                                                gpointer data)
 185 {
 186         stc_process_key_s *proc_key = (stc_process_key_s *)key;
 187         stc_process_value_s *proc_value = (stc_process_value_s *)value;
 188
 189         STC_LOGD("Process entry => PID [%d], Ground state [%d]",
 190                  proc_key->pid, proc_value->ground);
 191         return FALSE;
 192 }
 193
 194 static void __processes_tree_printall(GTree *processes)
 195 {
 196         g_tree_foreach(processes, __processes_tree_foreach_print, NULL);
 197 }
 198
 199 static gboolean __apps_tree_foreach_print(gpointer key, gpointer value,
 200                                           gpointer data)
 201 {
 202         stc_app_key_s *app_key = (stc_app_key_s *)key;
 203         stc_app_value_s *app_value = (stc_app_value_s *)value;
 204
 205         STC_LOGD("Application info => Pkg ID [%s], App ID [%s],"
 206                  " Type [%d], classid [%d],"
 207                  " counter [ in (%lld), out (%lld)]",
 208                  app_key->pkg_id, app_key->app_id,
 209                  app_value->type, app_value->classid,
 210                  app_value->data_usage.in_bytes, app_value->data_usage.out_bytes);
 211
 212         __processes_tree_printall(app_value->processes);
 213         return FALSE;
 214 }
 215
 216 #if 0
 217 static void __apps_tree_printall(void)
 218 {
 219         g_tree_foreach(g_system->apps, __apps_tree_foreach_print, NULL);
 220 }
 221 #endif
 222
 223 static gboolean __apps_tree_foreach_remove_pid(gpointer key, gpointer value,
 224                                                gpointer data)
 225 {
 226         remove_pid_context_s *context = (remove_pid_context_s *)data;
 227         stc_app_value_s *app_value = (stc_app_value_s *)value;
 228
 229         if (!g_tree_remove(app_value->processes, context->proc_key)) {
 230                 STC_LOGD("key not found");
 231                 return FALSE;
 232         }
 233
 234         context->entry_removed = TRUE;
 235         context->app_key = (stc_app_key_s *)key;
 236
 237         return TRUE;
 238 }
 239
 240 static stc_app_value_s * __application_lookup(GTree *apps,
 241                                               const stc_app_key_s *key)
 242 {
 243         stc_app_value_s *lookup;
 244
 245         ret_value_msg_if(apps == NULL, NULL, "apps is null!");
 246
 247         lookup = g_tree_lookup(apps, key);
 248
 249         return lookup;
 250 }
 251
 252 static stc_process_value_s * __process_lookup(GTree *processes,
 253                                               const stc_process_key_s *key)
 254 {
 255         stc_process_value_s *lookup;
 256
 257         ret_value_msg_if(processes == NULL, NULL, "processes is null!");
 258
 259         lookup = g_tree_lookup(processes, key);
 260
 261         return lookup;
 262 }
 263
 264 static gboolean __processes_tree_check_empty(gpointer key, gpointer value,
 265                                              gpointer data)
 266 {
 267         guint *pid_count = (guint *)data;
 268         (*pid_count)++;
 269         return TRUE;
 270 }
 271
 272 static gboolean __add_application_monitor(gpointer key, gpointer value,
 273                                           gpointer data)
 274 {
 275         stc_app_value_s *app_value = (stc_app_value_s *)value;
 276         default_connection_s *connection = (default_connection_s *)data;
 277         stc_s *stc = stc_get_manager();
 278
 279         if (app_value->classid == STC_TOTAL_DATACALL_CLASSID ||
 280                 app_value->classid == STC_TOTAL_WIFI_CLASSID ||
 281                 app_value->classid == STC_TOTAL_BLUETOOTH_CLASSID)
 282                 return FALSE;
 283
 284         if (stc && connection && connection->ifname) {
 285                 struct nfacct_rule counter;
 286
 287                 if (!stc->carg) {
 288                         stc->carg = MALLOC0(counter_arg_s, 1);
 289                         stc->carg->sock = stc_monitor_get_counter_socket();
 290                 }
 291
 292                 memset(&counter, 0, sizeof(struct nfacct_rule));
 293
 294                 counter.carg = stc->carg;
 295                 counter.classid = app_value->classid;
 296                 counter.intend = NFACCT_COUNTER;
 297                 counter.iftype = connection->type;
 298                 g_strlcpy(counter.ifname, connection->ifname, MAX_IFACE_LENGTH);
 299
 300                 __add_iptables_in(&counter);
 301                 __add_iptables_out(&counter);
 302         }
 303
 304         return FALSE;
 305 }
 306
 307 static gboolean __remove_application_monitor(gpointer key, gpointer value,
 308                                              gpointer data)
 309 {
 310         stc_app_value_s *app_value = (stc_app_value_s *)value;
 311         default_connection_s *connection = (default_connection_s *)data;
 312         stc_s *stc = stc_get_manager();
 313
 314         if (stc && connection && connection->ifname) {
 315                 struct nfacct_rule counter;
 316
 317                 if (!stc->carg) {
 318                         stc->carg = MALLOC0(counter_arg_s, 1);
 319                         stc->carg->sock = stc_monitor_get_counter_socket();
 320                 }
 321
 322                 memset(&counter, 0, sizeof(struct nfacct_rule));
 323
 324                 counter.carg = stc->carg;
 325                 counter.classid = app_value->classid;
 326                 counter.intend = NFACCT_COUNTER;
 327                 counter.iftype = connection->type;
 328                 g_strlcpy(counter.ifname, connection->ifname, MAX_IFACE_LENGTH);
 329
 330                 __del_iptables_in(&counter);
 331                 __del_iptables_out(&counter);
 332         }
 333
 334         return FALSE;
 335 }
 336
 337 static void __print_rstn(stc_rstn_key_s *rstn_key, stc_rstn_value_s *rstn_value)
 338 {
 339         STC_LOGI("rstn info => rstn_id [%llu], "
 340                  "app_id [%s], classid [%lu], ifname [%s], "
 341                  "iftype [%d], rst_state [%d], "
 342                  "limit [ (%lld) bytes], "
 343                  "warn_limit [ (%lld) bytes], "
 344                  "counter [ (%lld) bytes], "
 345                  "roaming [%d], imsi [%s]",
 346                  rstn_value->restriction_id,
 347                  rstn_key->app_id, rstn_value->classid , rstn_key->ifname,
 348                  rstn_key->iftype, rstn_value->rst_state,
 349                  rstn_value->data_limit,
 350                  rstn_value->data_warn_limit,
 351                  rstn_value->data_counter,
 352                  rstn_key->roaming, rstn_key->imsi);
 353 }
 354
 355 static void __process_restriction(enum traffic_restriction_type rst_type,
 356                                   stc_rstn_key_s *rstn_key,
 357                                   stc_rstn_value_s *rstn_value, void *data)
 358 {
 359         int64_t effective_data_limit, effective_data_warn_limit;
 360         default_connection_s *old_connection = (default_connection_s *)data;
 361         default_connection_s *connection = NULL;
 362
 363         if (old_connection != NULL)
 364                 connection = old_connection;
 365         else
 366                 connection = stc_get_default_connection();
 367
 368         /* no default ifname */
 369         if (connection->ifname == NULL)
 370                 return;
 371
 372         /* rstn not applicable for this interface */
 373         if (rstn_key->ifname != NULL && g_strcmp0("", rstn_key->ifname) != 0 &&
 374             g_strcmp0(connection->ifname, rstn_key->ifname) != 0)
 375                 return;
 376
 377         /* classid is invalid */
 378         if (rstn_value->classid == STC_UNKNOWN_CLASSID)
 379                 return;
 380
 381         effective_data_limit = rstn_value->data_limit;
 382         effective_data_warn_limit = rstn_value->data_warn_limit;
 383
 384         if (rst_type == RST_SET) {
 385                 /* TODO: Change this to runtime memory */
 386                 table_counters_info info;
 387
 388                 memset(&info, 0, sizeof(table_counters_info));
 389                 table_counters_get(rstn_value->restriction_id, &info);
 390
 391                 effective_data_limit -= info.data_counter;
 392                 effective_data_warn_limit -= info.data_counter;
 393
 394                 if (effective_data_limit < 0) {
 395                         effective_data_limit = 0;
 396                         rstn_value->data_limit_reached = TRUE;
 397                 }
 398
 399                 if (effective_data_warn_limit < 0)
 400                         effective_data_warn_limit = 0;
 401
 402                 STC_LOGD("datausage [%lld] bytes", info.data_counter);
 403         }
 404
 405         STC_LOGD("rstn_id [%llu], effective_data_limit [%lld] bytes, "
 406                  "effective_data_warn_limit [%lld] bytes",
 407                  rstn_value->restriction_id, effective_data_limit,
 408                  effective_data_warn_limit);
 409
 410         switch (rst_type) {
 411         case RST_SET:
 412                 if (effective_data_limit <= 0) {
 413                         char *default_ifname = stc_default_connection_get_ifname();
 414                         struct nfacct_rule counter;
 415                         stc_s *stc = stc_get_manager();
 416
 417                         if (!stc->carg) {
 418                                 stc->carg = MALLOC0(counter_arg_s, 1);
 419                                 stc->carg->sock =
 420                                         stc_monitor_get_counter_socket();
 421                         }
 422
 423                         counter.carg = stc->carg;
 424                         counter.classid = rstn_value->classid;
 425                         counter.intend = NFACCT_BLOCK;
 426                         counter.iftype = rstn_key->iftype;
 427                         g_strlcpy(counter.ifname, default_ifname,
 428                                   MAX_IFACE_LENGTH);
 429
 430                         generate_counter_name(&counter);
 431                         g_free(default_ifname);
 432
 433                         /* iptables rule */
 434                         __add_iptables_in(&counter);
 435                         __add_iptables_out(&counter);
 436                 }
 437
 438                 rstn_value->rst_state = STC_RESTRICTION_ACTIVATED;
 439                 rstn_value->data_limit_reached = FALSE;
 440                 break;
 441         case RST_EXCLUDE:
 442                 ;//Do Nothing
 443                 break;
 444         case RST_UNSET:
 445                 {
 446                         char *default_ifname = stc_default_connection_get_ifname();
 447                         struct nfacct_rule counter;
 448                         stc_s *stc = stc_get_manager();
 449
 450                         if (!stc->carg) {
 451                                 stc->carg = MALLOC0(counter_arg_s, 1);
 452                                 stc->carg->sock =
 453                                         stc_monitor_get_counter_socket();
 454                         }
 455
 456                         counter.carg = stc->carg;
 457                         counter.classid = rstn_value->classid;
 458                         counter.intend = NFACCT_BLOCK;
 459                         counter.iftype = rstn_key->iftype;
 460                         g_strlcpy(counter.ifname, default_ifname,
 461                                   MAX_IFACE_LENGTH);
 462
 463                         generate_counter_name(&counter);
 464                         g_free(default_ifname);
 465
 466                         /* iptables rule */
 467                         __del_iptables_in(&counter);
 468                         __del_iptables_out(&counter);
 469
 470                         rstn_value->rst_state = STC_RESTRICTION_REMOVED;
 471                         rstn_value->data_limit_reached = FALSE;
 472                 }
 473                 break;
 474         default:
 475                 ;//Do Nothing
 476         }
 477 }
 478
 479 static gboolean __remove_rstns_foreach_application(gpointer key,
 480                                                    gpointer value,
 481                                                    gpointer data)
 482 {
 483         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 484         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 485         gchar *app_id = (gchar *)data;
 486
 487         /* rstn rule is not for applications */
 488         if (rstn_key->app_id == NULL)
 489                 goto out;
 490
 491         /* rstn rule is not for this application */
 492         if (g_strcmp0(rstn_key->app_id, app_id) != 0)
 493                 goto out;
 494
 495         /* rstn rule is already removed */
 496         if (rstn_value->rst_state == STC_RESTRICTION_REMOVED)
 497                 goto out;
 498
 499         /* remove restriction from system */
 500         __process_restriction(RST_UNSET, rstn_key, rstn_value, data);
 501
 502         __print_rstn(rstn_key, rstn_value);
 503 out:
 504         return FALSE;
 505 }
 506
 507 static void __remove_rstns_for_application(gchar *app_id)
 508 {
 509         g_tree_foreach(g_system->rstns, __remove_rstns_foreach_application,
 510                        app_id);
 511 }
 512
 513 static stc_error_e __application_remove_if_empty(const stc_app_key_s *app_key)
 514 {
 515         stc_error_e ret = STC_ERROR_NONE;
 516         guint pid_count = 0;
 517         stc_app_value_s *lookup;
 518
 519         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
 520
 521         lookup = __application_lookup(g_system->apps, app_key);
 522         if (!lookup) {
 523                 STC_LOGE("app_key not found");
 524                 return STC_ERROR_NO_DATA;
 525         }
 526
 527         g_tree_foreach(lookup->processes, __processes_tree_check_empty,
 528                        &pid_count);
 529
 530         if (!pid_count) {
 531                 /* remove nfacct rule for this classid */
 532                 __remove_application_monitor((gpointer) app_key, lookup,
 533                                              stc_get_default_connection());
 534                 __remove_rstns_for_application(app_key->app_id);
 535         }
 536
 537         if (!g_tree_remove(g_system->apps, app_key)) {
 538                 ret = STC_ERROR_NO_DATA;
 539                 STC_LOGE("key not found");
 540         }
 541
 542         return ret;
 543 }
 544
 545 static stc_error_e __close_contr_sock(stc_system_s *system)
 546 {
 547         ret_value_msg_if(system == NULL, STC_ERROR_INVALID_PARAMETER, "invalid parameter");
 548
 549         /* close netlink socket for updating kernel counters */
 550         if (system->contr_sock != -1) {
 551                 close(system->contr_sock);
 552                 system->contr_sock = -1;
 553         }
 554
 555         if (system->contr_gsource_id != 0) {
 556                 g_source_remove(system->contr_gsource_id);
 557                 system->contr_gsource_id = 0;
 558         }
 559
 560         return STC_ERROR_NONE;
 561 }
 562
 563 static gboolean __process_contr_reply(GIOChannel *source,
 564                                       GIOCondition condition,
 565                                       gpointer user_data);
 566
 567 static stc_error_e __close_and_reopen_contr_sock(stc_system_s *system)
 568 {
 569         GIOChannel *gio = NULL;
 570         ret_value_msg_if(system == NULL, STC_ERROR_INVALID_PARAMETER, "invalid parameter");
 571
 572         /* close netlink socket for updating kernel counters */
 573         if (system->contr_sock != -1) {
 574                 close(system->contr_sock);
 575                 system->contr_sock = -1;
 576         }
 577
 578         if (system->contr_gsource_id != 0) {
 579                 g_source_remove(system->contr_gsource_id);
 580                 system->contr_gsource_id = 0;
 581         }
 582
 583         /* create netlink socket for updating kernel counters */
 584         system->contr_sock = create_netlink(NETLINK_NETFILTER, 0);
 585         if (!(system->contr_sock)) {
 586                 STC_LOGE("failed to open socket");
 587                 FREE(system);
 588                 return STC_ERROR_FAIL;
 589         }
 590
 591         gio = g_io_channel_unix_new(system->contr_sock);
 592         system->contr_gsource_id =
 593                 g_io_add_watch(gio, G_IO_IN | G_IO_ERR | G_IO_HUP,
 594                                (GIOFunc) __process_contr_reply,
 595                                NULL);
 596         g_io_channel_unref(gio);
 597
 598         return STC_ERROR_NONE;
 599 }
 600
 601 static gboolean __rstn_counter_update(stc_rstn_key_s *rstn_key,
 602                                                       stc_rstn_value_s *rstn_value,
 603                                                       classid_bytes_context_s *context)
 604 {
 605         switch (context->counter->iotype) {
 606         case NFACCT_COUNTER_IN:
 607         case NFACCT_COUNTER_OUT:
 608                 rstn_value->data_counter += context->bytes;
 609
 610                 if (rstn_value->data_counter >= rstn_value->data_warn_limit &&
 611                     rstn_value->warn_limit_crossed_notified == FALSE) {
 612
 613                         gboolean rv = FALSE;
 614                         char iftype[MAX_INT_LENGTH];
 615                         char byte[MAX_INT_LENGTH];
 616                         stc_s *stc = (stc_s *)stc_get_manager();
 617                         ret_value_msg_if(stc == NULL, FALSE, "failed to get stc data");
 618
 619                         /* emit signal */
 620                         rv = stc_manager_dbus_emit_signal(stc->connection,
 621                                                           STC_DBUS_SERVICE_RESTRICTION_PATH,
 622                                                           STC_DBUS_INTERFACE_RESTRICTION,
 623                                                           "WarnThresholdCrossed",
 624                                                           g_variant_new("(si)", rstn_key->app_id, rstn_key->iftype));
 625                         if (rv == TRUE)
 626                                 rstn_value->warn_limit_crossed_notified = TRUE;
 627
 628                         snprintf(iftype, MAX_INT_LENGTH, "%d", rstn_key->iftype);
 629                         snprintf(byte, MAX_INT_LENGTH, "%lld", rstn_value->data_warn_limit);
 630                         stc_send_warn_message_to_net_popup("warn threshold crossed",
 631                                                            "warning_noti",
 632                                                            rstn_key->app_id,
 633                                                            iftype, byte);
 634                 }
 635
 636                 if (rstn_value->data_counter >= rstn_value->data_limit &&
 637                     rstn_value->rstn_limit_crossed_notified == FALSE) {
 638
 639                         gboolean rv = FALSE;
 640                         char iftype[MAX_INT_LENGTH];
 641                         char byte[MAX_INT_LENGTH];
 642                         stc_s *stc = (stc_s *)stc_get_manager();
 643                         ret_value_msg_if(stc == NULL, FALSE, "failed to get stc data");
 644
 645                         /* block immediately */
 646                         context->counter->intend = NFACCT_BLOCK;
 647                         __del_iptables_in(context->counter);
 648                         __del_iptables_out(context->counter);
 649                         __add_iptables_in(context->counter);
 650                         __add_iptables_out(context->counter);
 651                         context->counter->intend = NFACCT_COUNTER;
 652
 653                         rstn_value->data_limit_reached = TRUE;
 654
 655                         /* emit signal */
 656                         rv = stc_manager_dbus_emit_signal(stc->connection,
 657                                                           STC_DBUS_SERVICE_RESTRICTION_PATH,
 658                                                           STC_DBUS_INTERFACE_RESTRICTION,
 659                                                           "RestrictionThresholdCrossed",
 660                                                           g_variant_new("(si)", rstn_key->app_id, rstn_key->iftype));
 661                         if (rv == TRUE)
 662                                 rstn_value->rstn_limit_crossed_notified = TRUE;
 663
 664                         snprintf(iftype, MAX_INT_LENGTH, "%d", rstn_key->iftype);
 665                         snprintf(byte, MAX_INT_LENGTH, "%lld", rstn_value->data_limit);
 666                         stc_send_restriction_message_to_net_popup("restriction threshold crossed",
 667                                                                   "restriction_noti", rstn_key->app_id,
 668                                                                   iftype, byte);
 669                 }
 670
 671                 g_system->rstns_tree_updated = TRUE;
 672                 __print_rstn(rstn_key, rstn_value);
 673                 break;
 674         default:
 675                 STC_LOGE("unknown iotype");
 676         }
 677
 678         return FALSE;
 679 }
 680
 681 static gboolean __interface_rstn_counter_update(stc_rstn_key_s *rstn_key,
 682                                                       stc_rstn_value_s *rstn_value,
 683                                                       classid_bytes_context_s *context)
 684 {
 685         if ((rstn_value->classid == STC_TOTAL_DATACALL_CLASSID &&
 686                 context->counter->iftype == STC_IFACE_DATACALL) ||
 687                 (rstn_value->classid == STC_TOTAL_WIFI_CLASSID &&
 688                 context->counter->iftype == STC_IFACE_WIFI) ||
 689                 (rstn_value->classid == STC_TOTAL_BLUETOOTH_CLASSID &&
 690                 context->counter->iftype == STC_IFACE_BLUETOOTH)) {
 691                 context->counter->classid = rstn_value->classid;
 692                 return __rstn_counter_update(rstn_key, rstn_value, context);
 693         }
 694
 695         return FALSE;
 696 }
 697
 698 static gboolean __rstn_counter_update_foreach_classid(gpointer key,
 699                                                       gpointer value,
 700                                                       gpointer data)
 701 {
 702         gboolean rv = FALSE;
 703         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 704         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 705         classid_bytes_context_s *context = (classid_bytes_context_s *)data;
 706         uint32_t classid;
 707
 708         if (context->counter->intend != NFACCT_COUNTER)
 709                 goto try_next_callback;
 710
 711         if (rstn_value->data_limit_reached == TRUE) {
 712                 context->data_limit_reached = TRUE;
 713                 goto try_next_callback;
 714         }
 715
 716         classid = context->counter->classid;
 717         rv = __interface_rstn_counter_update(rstn_key, rstn_value, context);
 718
 719         context->counter->classid = classid;
 720         if (rstn_value->classid != context->counter->classid)
 721                 goto try_next_callback;
 722
 723         rv = __rstn_counter_update(rstn_key, rstn_value, context);
 724
 725 try_next_callback:
 726         return rv;
 727 }
 728
 729 static gboolean __update_app_statistics(gpointer key, gpointer value,
 730                                         gpointer data)
 731 {
 732         stc_app_key_s *app_key = (stc_app_key_s *)key;
 733         stc_app_value_s *app_value = (stc_app_value_s *)value;
 734         time_t *touch_time = (time_t *)data;
 735         stc_db_classid_iftype_key stat_key;
 736         stc_db_app_stats stat;
 737         char *default_ifname = stc_default_connection_get_ifname();
 738
 739         memset(&stat_key, 0, sizeof(stc_db_classid_iftype_key));
 740         memset(&stat, 0 , sizeof(stc_db_app_stats));
 741
 742         stat_key.classid = app_value->classid;
 743         stat_key.iftype = stc_default_connection_get_type();
 744         if (STC_IFACE_DATACALL == stat_key.iftype)
 745                 stat_key.imsi = g_strdup("unknown");
 746         else
 747                 stat_key.imsi = g_strdup("noneimsi");
 748         g_strlcpy(stat_key.ifname, default_ifname, MAX_IFACE_LENGTH);
 749
 750         stat.app_id = g_strdup(app_key->app_id);
 751         stat.snd_count = app_value->counter.out_bytes;
 752         stat.rcv_count = app_value->counter.in_bytes;
 753         stat.is_roaming = stc_default_connection_get_roaming();
 754         stat.ground = STC_APP_STATE_UNKNOWN;
 755
 756         table_statistics_insert(&stat_key, &stat, *touch_time);
 757
 758         app_value->counter.out_bytes = 0;
 759         app_value->counter.in_bytes = 0;
 760
 761         FREE(stat.app_id);
 762         FREE(stat_key.imsi);
 763         FREE(default_ifname);
 764
 765         return FALSE;
 766 }
 767
 768 static gboolean __flush_apps_stats_to_database(gpointer user_data)
 769 {
 770         time_t current_time = time(0);
 771
 772         if (g_system->apps_tree_updated == FALSE)
 773                 return G_SOURCE_REMOVE;
 774
 775         g_system->apps_tree_updated = FALSE;
 776
 777         if (g_system->apps)
 778                 g_tree_foreach(g_system->apps,
 779                                __update_app_statistics,
 780                                &current_time);
 781
 782         STC_LOGI("Flushed app stats to database");
 783         return G_SOURCE_REMOVE;
 784 }
 785
 786 static gboolean __update_counter_statistics(gpointer key, gpointer value,
 787                                             gpointer data)
 788 {
 789         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 790         table_counters_info info = {
 791                 .restriction_id = rstn_value->restriction_id,
 792                 .data_counter = rstn_value->data_counter
 793         };
 794
 795         table_counters_update_counters(&info);
 796
 797         return FALSE;
 798 }
 799
 800 static gboolean __flush_rstns_counter_to_database(gpointer user_data)
 801 {
 802         time_t current_time = time(0);
 803
 804         if (g_system->rstns_tree_updated == FALSE)
 805                 return G_SOURCE_REMOVE;
 806
 807         g_system->rstns_tree_updated = FALSE;
 808
 809         if (g_system->rstns)
 810                 g_tree_foreach(g_system->rstns,
 811                                __update_counter_statistics,
 812                                &current_time);
 813
 814         STC_LOGI("Flushed rstns counters to database");
 815         return G_SOURCE_REMOVE;
 816 }
 817
 818 static void __app_counter_update(stc_app_key_s *app_key,
 819                                                         stc_app_value_s *app_value,
 820                                                         classid_bytes_context_s *context)
 821 {
 822         switch (context->counter->iotype) {
 823         case NFACCT_COUNTER_IN:
 824                 app_value->data_usage.in_bytes += context->bytes;
 825                 app_value->counter.in_bytes = context->bytes;
 826                 g_system->apps_tree_updated = TRUE;
 827
 828                 __apps_tree_foreach_print(app_key, app_value, NULL);
 829                 break;
 830         case NFACCT_COUNTER_OUT:
 831                 app_value->data_usage.out_bytes += context->bytes;
 832                 app_value->counter.out_bytes = context->bytes;
 833                 g_system->apps_tree_updated = TRUE;
 834
 835                 __apps_tree_foreach_print(app_key, app_value, NULL);
 836                 break;
 837         default:
 838                 STC_LOGE("unknown iotype");
 839         }
 840 }
 841
 842 static void __interface_counter_update(stc_app_key_s *app_key,
 843                                                         stc_app_value_s *app_value,
 844                                                         classid_bytes_context_s *context)
 845 {
 846         if ((app_value->classid == STC_TOTAL_DATACALL_CLASSID &&
 847                 context->counter->iftype == STC_IFACE_DATACALL) ||
 848                 (app_value->classid == STC_TOTAL_WIFI_CLASSID &&
 849                 context->counter->iftype == STC_IFACE_WIFI) ||
 850                 (app_value->classid == STC_TOTAL_BLUETOOTH_CLASSID &&
 851                 context->counter->iftype == STC_IFACE_BLUETOOTH))
 852                 __app_counter_update(app_key, app_value, context);
 853 }
 854
 855 static gboolean __apps_counter_update_foreach_classid(gpointer key,
 856                                                       gpointer value,
 857                                                       gpointer data)
 858 {
 859         stc_app_key_s *app_key = (stc_app_key_s *)key;
 860         stc_app_value_s *app_value = (stc_app_value_s *)value;
 861         classid_bytes_context_s *context = (classid_bytes_context_s *)data;
 862
 863         if (context->counter->intend != NFACCT_COUNTER)
 864                 goto try_next_callback;
 865
 866         __interface_counter_update(app_key, app_value, context);
 867
 868         if (app_value->classid != context->counter->classid)
 869                 goto try_next_callback;
 870
 871         __app_counter_update(app_key, app_value, context);
 872
 873 try_next_callback:
 874         return FALSE;
 875 }
 876
 877 static void __fill_nfacct_result(char *cnt_name, int64_t bytes,
 878                                  struct counter_arg *carg)
 879 {
 880         struct nfacct_rule counter = {
 881                 .carg = carg,
 882                 .name = {0},
 883                 .ifname = {0},
 884                 0
 885         };
 886
 887         classid_bytes_context_s context = {
 888                 .counter = &counter,
 889                 .bytes = bytes,
 890                 .data_limit_reached = FALSE,
 891         };
 892
 893         STC_LOGD("cnt_name %s", cnt_name);
 894
 895         if (!recreate_counter_by_name(cnt_name, &counter)) {
 896                 STC_LOGE("Can't parse counter name %s", cnt_name);
 897                 return;
 898         }
 899
 900         STC_LOGI("classid %lu, iftype %u, iotype %d, intend %d, ifname %s, bytes %lld",
 901                  context.counter->classid, context.counter->iftype,
 902                  context.counter->iotype, context.counter->intend,
 903                  context.counter->ifname, context.bytes);
 904
 905         if (g_system->rstns)
 906                 g_tree_foreach(g_system->rstns,
 907                                __rstn_counter_update_foreach_classid,
 908                                &context);
 909
 910         if (g_system->apps)
 911                 g_tree_foreach(g_system->apps,
 912                                __apps_counter_update_foreach_classid,
 913                                &context);
 914 }
 915
 916 static int __fill_counters(struct rtattr *attr_list[__NFACCT_MAX],
 917                            void *user_data)
 918 {
 919         struct counter_arg *carg = user_data;
 920         char *cnt_name = (char *)RTA_DATA(attr_list[NFACCT_NAME]);
 921         if (carg->initiate) {
 922                 /**
 923                  * TODO: this will be used when daemon starts to update existing
 924                  * counter data if present.
 925                  *
 926                  populate_counters(cnt_name, carg);
 927                  */
 928         } else {
 929                 int64_t *bytes_p =
 930                         (int64_t *)RTA_DATA(attr_list[NFACCT_BYTES]);
 931                 int bytes = be64toh(*bytes_p);
 932                 if (bytes) {
 933                         ++carg->serialized_counters;
 934                         __fill_nfacct_result(cnt_name, bytes, carg);
 935                 }
 936         }
 937
 938         return 0;
 939 }
 940
 941 static int __post_fill_counters(void *user_data)
 942 {
 943         struct counter_arg *carg = user_data;
 944
 945         if (carg->initiate)
 946                 carg->initiate = 0;
 947
 948         return 0;
 949 }
 950
 951 static void __process_network_counter(struct genl *ans,
 952                                       struct counter_arg *carg)
 953 {
 954         struct netlink_serialization_params ser_params = {
 955                 .carg = carg,
 956                 .ans = ans,
 957                 .eval_attr = __fill_counters,
 958                 .post_eval_attr = __post_fill_counters,
 959         };
 960
 961         netlink_serialization_command *netlink =
 962                 netlink_create_command(&ser_params);
 963         if (!netlink) {
 964                 STC_LOGE("Can not create command");
 965                 return;
 966         }
 967
 968         netlink->deserialize_answer(&(netlink->params));
 969 }
 970
 971 static gboolean __process_contr_reply(GIOChannel *source,
 972                                       GIOCondition condition,
 973                                       gpointer user_data)
 974 {
 975         int sock = g_io_channel_unix_get_fd(source);
 976         struct genl ans;
 977         int ret;
 978         stc_s *stc = stc_get_manager();
 979
 980         if ((condition & G_IO_ERR) ||
 981             (condition & G_IO_HUP) ||
 982             (condition & G_IO_NVAL)) {
 983                 /* G_IO_ERR/G_IO_HUP/G_IO_NVAL received */
 984
 985                 STC_LOGE("Counter socket received G_IO event, closing socket."
 986                          "G_IO_ERR [%d], G_IO_HUP [%d], G_IO_NVAL [%s]",
 987                          (condition & G_IO_ERR), (condition & G_IO_HUP),
 988                          (condition & G_IO_NVAL));
 989                 __close_and_reopen_contr_sock(g_system);
 990                 return FALSE;
 991         }
 992
 993         if (stc == NULL) {
 994                 STC_LOGE("Can't get stc data");
 995                 goto out;
 996         }
 997
 998         ret = read_netlink(sock,
 999                            &ans, sizeof(struct genl));
1000         /* STC_LOGD("Counter data received ret [%d]", ret); */
1001         if (ret == 0)
1002                 goto out;
1003
1004         stc->carg->ans_len = ret;
1005         __process_network_counter(&ans, stc->carg);
1006
1007         g_idle_add(__flush_apps_stats_to_database, NULL);
1008         g_idle_add(__flush_rstns_counter_to_database, NULL);
1009 out:
1010         return TRUE;
1011 }
1012
1013 static gboolean __update_contr_cb(void *user_data)
1014 {
1015         /* Here we just sent command, answer we receive in another callback */
1016         stc_s *stc = stc_get_manager();
1017         ret_value_msg_if(stc == NULL, STC_ERROR_FAIL, "Can't get stc data");
1018         if (!stc->carg) {
1019                 stc->carg = MALLOC0(counter_arg_s, 1);
1020                 stc->carg->sock = stc_monitor_get_counter_socket();
1021         }
1022
1023         /* STC_LOGD("Get all counters"); */
1024         nfacct_send_get_all(stc->carg);
1025
1026         /* we need to continue the timer */
1027         return TRUE;
1028 }
1029 #if 0
1030 static gboolean __rstn_tree_foreach_print(gpointer key, gpointer value,
1031                                           gpointer data)
1032 {
1033         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1034         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1035
1036         __print_rstn(rstn_key, rstn_value);
1037         return FALSE;
1038 }
1039
1040 static void __rstn_tree_printall(void)
1041 {
1042         g_tree_foreach(g_system->rstns, __rstn_tree_foreach_print, NULL);
1043 }
1044 #endif
1045 static stc_rstn_value_s * __rstn_lookup(GTree *rstns_tree,
1046                                         const stc_rstn_key_s *key)
1047 {
1048         stc_rstn_value_s *lookup;
1049
1050         ret_value_msg_if(rstns_tree == NULL, NULL, "rstns_tree is null!");
1051
1052         lookup = g_tree_lookup(rstns_tree, key);
1053
1054         return lookup;
1055 }
1056
1057 static gboolean __remove_restriction(gpointer key, gpointer value,
1058                                      gpointer data)
1059 {
1060         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1061         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1062
1063         /* rstn rule is already removed */
1064         if (rstn_value->rst_state == STC_RESTRICTION_REMOVED)
1065                 return FALSE;
1066
1067         __process_restriction(RST_UNSET, rstn_key, rstn_value, data);
1068         __print_rstn(rstn_key, rstn_value);
1069         return FALSE;
1070 }
1071
1072 static gboolean __add_restriction_debug(gpointer key, gpointer value,
1073                                         gpointer data)
1074 {
1075         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1076         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1077
1078         /* rstn rule is activated */
1079         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1080                 return FALSE;
1081
1082         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1083                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1084         else
1085                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1086
1087         __print_rstn(rstn_key, rstn_value);
1088
1089         return FALSE;
1090 }
1091
1092 static gboolean __add_restriction(gpointer key, gpointer value, gpointer data)
1093 {
1094         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1095         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1096
1097         /* rstn rule is activated */
1098         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1099                 return FALSE;
1100
1101         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1102                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1103         else
1104                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1105
1106         return FALSE;
1107 }
1108
1109 static stc_error_e __rstn_tree_remove(stc_rstn_key_s *key)
1110 {
1111         stc_rstn_value_s *lookup_value;
1112
1113         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1114
1115         lookup_value = __rstn_lookup(g_system->rstns, key);
1116         if (!lookup_value) {
1117                 STC_LOGE("key not found");
1118                 return STC_ERROR_NO_DATA;
1119         }
1120
1121         __remove_restriction(key, lookup_value, NULL);
1122
1123         /* remove counter also */
1124         table_counters_delete(lookup_value->restriction_id);
1125
1126         if (!g_tree_remove(g_system->rstns, key)) {
1127                 STC_LOGD("key not found");
1128                 return STC_ERROR_NO_DATA;
1129         }
1130
1131         return STC_ERROR_NONE;
1132 }
1133
1134 static stc_error_e __rstn_tree_add(stc_rstn_key_s *key,
1135                                    stc_rstn_value_s *value, gboolean debug)
1136 {
1137         stc_rstn_value_s *rstn_value;
1138
1139         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1140
1141         rstn_value = __rstn_lookup(g_system->rstns, key);
1142         if (!rstn_value) {
1143                 stc_rstn_key_s *rstn_key = MALLOC0(stc_rstn_key_s, 1);
1144                 if (!rstn_key) {
1145                         STC_LOGE("rstn_key allocation failed");
1146                         return STC_ERROR_OUT_OF_MEMORY;
1147                 }
1148
1149                 rstn_value = MALLOC0(stc_rstn_value_s, 1);
1150                 if (!rstn_value) {
1151                         STC_LOGE("rstn_value allocation failed");
1152                         FREE(rstn_key);
1153                         return STC_ERROR_OUT_OF_MEMORY;
1154                 }
1155
1156                 rstn_key->app_id = g_strdup(key->app_id);
1157                 rstn_key->ifname = g_strdup(key->ifname);
1158                 rstn_key->imsi = g_strdup(key->imsi);
1159                 rstn_key->iftype = key->iftype;
1160                 rstn_key->roaming = key->roaming;
1161
1162                 g_tree_insert(g_system->rstns, rstn_key, rstn_value);
1163         }
1164
1165         rstn_value->restriction_id = value->restriction_id;
1166         rstn_value->rst_state = value->rst_state;
1167         rstn_value->classid = value->classid;
1168         rstn_value->data_limit = value->data_limit;
1169         rstn_value->data_warn_limit = value->data_warn_limit;
1170         rstn_value->data_counter = 0;
1171         rstn_value->warn_limit_crossed_notified = FALSE;
1172         rstn_value->rstn_limit_crossed_notified = FALSE;
1173
1174         if (debug == TRUE)
1175                 __add_restriction_debug(key, rstn_value, NULL);
1176         else
1177                 __add_restriction(key, rstn_value, NULL);
1178
1179         return STC_ERROR_NONE;
1180 }
1181
1182 static stc_cb_ret_e __insert_restriction_cb(const table_restrictions_info *info,
1183                                             void *user_data)
1184 {
1185         stc_cb_ret_e ret = STC_CONTINUE;
1186
1187         stc_rstn_key_s key;
1188         stc_rstn_value_s value;
1189
1190         memset(&key, 0, sizeof(stc_rstn_key_s));
1191         memset(&value, 0, sizeof(stc_rstn_value_s));
1192
1193         key.app_id = g_strdup(info->app_id);
1194         key.ifname = g_strdup(info->ifname);
1195         key.imsi = g_strdup(info->imsi);
1196         key.iftype = info->iftype;
1197         key.roaming = info->roaming;
1198
1199         value.rst_state = info->rst_state;
1200         value.restriction_id = info->restriction_id;
1201
1202         if (value.rst_state != STC_RESTRICTION_EXCLUDED && info->app_id)
1203                 value.classid = get_classid_by_app_id(info->app_id, TRUE);
1204         else
1205                 value.classid = STC_UNKNOWN_CLASSID;
1206
1207         value.data_limit = info->data_limit;
1208         value.data_warn_limit = info->data_warn_limit;
1209
1210         if (__rstn_tree_add(&key, &value, FALSE) != STC_ERROR_NONE)
1211                 ret = STC_CANCEL;
1212
1213         FREE(key.app_id);
1214         FREE(key.ifname);
1215         FREE(key.imsi);
1216         return ret;
1217 }
1218
1219 static void __fill_restritions_list(void)
1220 {
1221         table_restrictions_foreach(__insert_restriction_cb, NULL);
1222         //__rstn_tree_printall();
1223 }
1224
1225 static gboolean __add_rstn_foreach_application(gpointer key,
1226                                                gpointer value,
1227                                                gpointer data)
1228 {
1229         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1230         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1231         gchar *app_id = (gchar *)data;
1232
1233         /* rstn rule is not for applications */
1234         if (rstn_key->app_id == NULL)
1235                 goto out;
1236
1237         /* rstn rule is not for this application */
1238         if (g_strcmp0(rstn_key->app_id, app_id) != 0)
1239                 goto out;
1240
1241         /* rstn rule is already applied */
1242         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1243                 goto out;
1244
1245         /* add restriction to system */
1246         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1247                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1248         else
1249                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1250
1251         __print_rstn(rstn_key, rstn_value);
1252 out:
1253         return FALSE;
1254 }
1255
1256 static void __add_rstns_for_application(gchar *app_id)
1257 {
1258         g_tree_foreach(g_system->rstns, __add_rstn_foreach_application,
1259                        app_id);
1260 }
1261
1262 static void __stc_monitor_add_application_by_interface(const char *app_id)
1263 {
1264         stc_app_key_s app_key;
1265         stc_app_value_s app_value;
1266
1267         if (app_id == NULL)
1268                 return;
1269
1270         memset(&app_key, 0, sizeof(stc_app_key_s));
1271         memset(&app_value, 0, sizeof(stc_app_value_s));
1272
1273         app_key.pkg_id = g_strdup(app_id);
1274         app_key.app_id = g_strdup(app_id);
1275
1276         app_value.type = STC_APP_TYPE_NONE;
1277         app_value.processes = NULL;
1278         app_value.counter.in_bytes = 0;
1279         app_value.counter.out_bytes = 0;
1280
1281         stc_monitor_application_add(app_key, app_value);
1282
1283         FREE(app_key.pkg_id);
1284         FREE(app_key.app_id);
1285 }
1286
1287 stc_error_e stc_monitor_init(void)
1288 {
1289         stc_system_s *system = MALLOC0(stc_system_s, 1);
1290         GIOChannel *gio = NULL;
1291
1292         ret_value_msg_if(system == NULL, STC_ERROR_OUT_OF_MEMORY, "stc_system_s malloc fail!");
1293
1294         /* initializing cgroups */
1295         cgroup_init();
1296
1297         /* creating monitored application tree */
1298         system->apps = g_tree_new_full(__apps_tree_key_compare, NULL,
1299                                        __apps_tree_key_free,
1300                                        __apps_tree_value_free);
1301
1302         system->rstns = g_tree_new_full(__rstns_tree_key_compare, NULL,
1303                                         __rstns_tree_key_free,
1304                                         __rstns_tree_value_free);
1305
1306         /* create netlink socket for updating kernel counters */
1307         system->contr_sock = create_netlink(NETLINK_NETFILTER, 0);
1308         if (!(system->contr_sock)) {
1309                 STC_LOGE("failed to open socket");
1310                 FREE(system);
1311                 return STC_ERROR_FAIL;
1312         }
1313
1314         gio = g_io_channel_unix_new(system->contr_sock);
1315         system->contr_gsource_id =
1316                 g_io_add_watch(gio, G_IO_IN | G_IO_ERR | G_IO_HUP,
1317                                (GIOFunc) __process_contr_reply,
1318                                NULL);
1319         g_io_channel_unref(gio);
1320
1321         g_system = system;
1322
1323         __stc_monitor_add_application_by_interface(STC_TOTAL_DATACALL);
1324         __stc_monitor_add_application_by_interface(STC_TOTAL_WIFI);
1325         __stc_monitor_add_application_by_interface(STC_TOTAL_BLUETOOTH);
1326
1327         /* creating restriction rules tree */
1328         __update_contr_cb(NULL);
1329
1330         /* registering periodic kernel counters update callback */
1331         g_system->contr_timer_id = g_timeout_add_seconds(CONTR_TIMER_INTERVAL,
1332                                                          __update_contr_cb,
1333                                                          NULL);
1334         if (g_system->contr_timer_id == 0) {
1335                 STC_LOGE("Failed to register kernel counters update timer");
1336                 __close_contr_sock(g_system);
1337                 return STC_ERROR_FAIL;
1338         }
1339
1340         __fill_restritions_list();
1341
1342         return STC_ERROR_NONE;
1343 }
1344
1345 stc_error_e stc_monitor_deinit(void)
1346 {
1347         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1348
1349         /* close netlink socket for updating kernel counters */
1350         __close_contr_sock(g_system);
1351
1352         /* remove kernel counters update timer */
1353         if (g_system->contr_timer_id > 0) {
1354                 g_source_remove(g_system->contr_timer_id);
1355                 g_system->contr_timer_id = 0;
1356         }
1357
1358         /* destroy monitored application tree */
1359         g_tree_destroy(g_system->apps);
1360         g_system->apps = NULL;
1361
1362         /* destroy restriction rules tree */
1363         g_tree_destroy(g_system->rstns);
1364         g_system->rstns = NULL;
1365
1366         FREE(g_system);
1367
1368         return STC_ERROR_NONE;
1369 }
1370
1371 stc_error_e stc_monitor_application_add(const stc_app_key_s app_key,
1372                                         const stc_app_value_s app_value)
1373 {
1374         stc_error_e ret = STC_ERROR_NONE;
1375         stc_app_key_s *key;
1376         stc_app_value_s *value;
1377         stc_app_value_s *lookup;
1378
1379         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1380
1381         lookup = __application_lookup(g_system->apps, &app_key);
1382         if (lookup) {
1383                 STC_LOGD("app_key already present");
1384                 return STC_ERROR_NONE;
1385         }
1386
1387         key = MALLOC0(stc_app_key_s, 1);
1388         if (!key) {
1389                 STC_LOGE("key allocation failed");
1390                 return STC_ERROR_OUT_OF_MEMORY;
1391         }
1392
1393         value = MALLOC0(stc_app_value_s, 1);
1394         if (!value) {
1395                 STC_LOGE("value allocation failed");
1396                 FREE(key);
1397                 return STC_ERROR_OUT_OF_MEMORY;
1398         }
1399
1400         key->app_id = g_strdup(app_key.app_id);
1401         key->pkg_id = g_strdup(app_key.pkg_id);
1402
1403         value->type = app_value.type;
1404         value->data_usage.in_bytes = app_value.data_usage.in_bytes;
1405         value->data_usage.out_bytes = app_value.data_usage.out_bytes;
1406
1407         value->processes = g_tree_new_full(__processes_tree_key_compare, NULL,
1408                                            __processes_tree_key_free,
1409                                            __processes_tree_value_free);
1410
1411         /* create cgroup and update classid */
1412         value->classid = get_classid_by_app_id(app_key.app_id, TRUE);
1413
1414         g_tree_insert(g_system->apps, key, value);
1415
1416         /* add nfacct rule for this classid */
1417         __add_application_monitor(key, value, stc_get_default_connection());
1418         __add_rstns_for_application(app_key.app_id);
1419
1420         return ret;
1421 }
1422
1423 stc_error_e stc_monitor_process_add(const stc_app_key_s app_key,
1424                                     const stc_process_key_s proc_key,
1425                                     const stc_process_value_s proc_value)
1426 {
1427         stc_error_e ret = STC_ERROR_NONE;
1428         stc_app_value_s *app_lookup;
1429         stc_process_key_s *key;
1430         stc_process_value_s *value;
1431         stc_process_value_s *proc_lookup;
1432
1433         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1434
1435         app_lookup = __application_lookup(g_system->apps, &app_key);
1436         if (!app_lookup) {
1437                 STC_LOGD("app_key not found");
1438                 return STC_ERROR_FAIL;
1439         }
1440
1441         proc_lookup = __process_lookup(app_lookup->processes, &proc_key);
1442         if (proc_lookup) {
1443                 STC_LOGD("proc_key already present");
1444                 return STC_ERROR_NONE;
1445         }
1446
1447         key = MALLOC0(stc_process_key_s, 1);
1448         if (!key) {
1449                 STC_LOGE("key allocation failed");
1450                 return STC_ERROR_OUT_OF_MEMORY;
1451         }
1452
1453         value = MALLOC0(stc_process_value_s, 1);
1454         if (!value) {
1455                 STC_LOGE("value allocation failed");
1456                 FREE(key);
1457                 return STC_ERROR_OUT_OF_MEMORY;
1458         }
1459
1460         key->pid = proc_key.pid;
1461
1462         value->ground = proc_value.ground;
1463
1464         g_tree_insert(app_lookup->processes, key, value);
1465
1466         /* add pid to application cgroup */
1467         place_pids_to_net_cgroup(proc_key.pid, app_key.app_id);
1468
1469         return ret;
1470 }
1471
1472 stc_error_e stc_monitor_process_remove(pid_t pid)
1473 {
1474         stc_error_e ret = STC_ERROR_NONE;
1475         stc_process_key_s proc_key = {
1476                 .pid = pid
1477         };
1478
1479         remove_pid_context_s context = {
1480                 .app_key = NULL,
1481                 .proc_key = &proc_key,
1482                 .entry_removed = FALSE,
1483         };
1484
1485         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1486
1487         g_tree_foreach(g_system->apps, __apps_tree_foreach_remove_pid,
1488                        &context);
1489
1490         if (context.entry_removed)
1491                 __application_remove_if_empty(context.app_key);
1492
1493         return ret;
1494 }
1495
1496 stc_error_e stc_monitor_process_update_ground(const stc_app_key_s app_key,
1497                                               const stc_process_key_s proc_key,
1498                                               stc_app_state_e ground)
1499 {
1500         stc_error_e ret = STC_ERROR_NONE;
1501         stc_app_value_s *app_lookup;
1502         stc_process_value_s *proc_lookup;
1503
1504         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1505
1506         app_lookup = __application_lookup(g_system->apps, &app_key);
1507         if (!app_lookup) {
1508                 STC_LOGD("app_key not found");
1509                 return STC_ERROR_FAIL;
1510         }
1511
1512         proc_lookup = __process_lookup(app_lookup->processes, &proc_key);
1513         if (!proc_lookup) {
1514                 STC_LOGD("proc_key not found");
1515                 return STC_ERROR_FAIL;
1516         }
1517
1518         if (proc_lookup->ground != ground)
1519                 proc_lookup->ground = ground;
1520
1521         if (ground == STC_APP_STATE_BACKGROUND) {
1522                 char *background_app_id = g_strconcat(app_key.app_id,
1523                                                      STC_BACKGROUND_APP_SUFFIX,
1524                                                      NULL);
1525                 place_pids_to_net_cgroup(proc_key.pid, background_app_id);
1526                 g_free(background_app_id);
1527         } else {
1528                 place_pids_to_net_cgroup(proc_key.pid, app_key.app_id);
1529         }
1530
1531         return ret;
1532 }
1533
1534 void stc_monitor_update_rstn_by_default_connection(void *data)
1535 {
1536         static default_connection_s old_connection;
1537         default_connection_s *new_connection = (default_connection_s *)data;
1538
1539         if (old_connection.path != NULL) {
1540                 if (g_system->apps)
1541                         g_tree_foreach(g_system->apps,
1542                                        __remove_application_monitor,
1543                                        (gpointer)&old_connection);
1544
1545                 if (g_system->rstns)
1546                         g_tree_foreach(g_system->rstns,
1547                                        __remove_restriction,
1548                                        (gpointer)&old_connection);
1549         }
1550
1551         FREE(old_connection.path);
1552         FREE(old_connection.ifname);
1553         old_connection.type = 0;
1554         old_connection.roaming = 0;
1555
1556         if (new_connection != NULL && new_connection->path != NULL) {
1557                 if (g_system->apps)
1558                         g_tree_foreach(g_system->apps,
1559                                        __add_application_monitor,
1560                                        (gpointer)new_connection);
1561
1562                 if (g_system->rstns)
1563                         g_tree_foreach(g_system->rstns, __add_restriction,
1564                                        NULL);
1565
1566                 old_connection.path = g_strdup(new_connection->path);
1567                 old_connection.ifname = g_strdup(new_connection->ifname);
1568                 old_connection.type = new_connection->type;
1569                 old_connection.roaming = new_connection->roaming;
1570         }
1571 }
1572
1573 stc_error_e stc_monitor_rstns_tree_add(const table_restrictions_info *info)
1574 {
1575         stc_error_e ret;
1576
1577         stc_rstn_key_s key;
1578         stc_rstn_value_s value;
1579
1580         memset(&key, 0, sizeof(stc_rstn_key_s));
1581         memset(&value, 0, sizeof(stc_rstn_value_s));
1582
1583         key.app_id = g_strdup(info->app_id);
1584         key.ifname = g_strdup(info->ifname);
1585         key.imsi = g_strdup(info->imsi);
1586         key.iftype = info->iftype;
1587         key.roaming = info->roaming;
1588
1589         value.rst_state = info->rst_state;
1590         value.restriction_id = info->restriction_id;
1591
1592         if (value.rst_state != STC_RESTRICTION_EXCLUDED && info->app_id)
1593                 value.classid = get_classid_by_app_id(info->app_id, TRUE);
1594         else
1595                 value.classid = STC_UNKNOWN_CLASSID;
1596
1597         value.data_limit = info->data_limit;
1598         value.data_warn_limit = info->data_warn_limit;
1599
1600         ret = __rstn_tree_add(&key, &value, TRUE);
1601
1602         FREE(key.app_id);
1603         FREE(key.ifname);
1604         FREE(key.imsi);
1605         return ret;
1606 }
1607
1608 stc_error_e stc_monitor_rstns_tree_remove(const table_restrictions_info *info)
1609 {
1610         stc_error_e ret;
1611
1612         stc_rstn_key_s key = {
1613                 .app_id = g_strdup(info->app_id),
1614                 .ifname = g_strdup(info->ifname),
1615                 .imsi = g_strdup(info->imsi),
1616                 .iftype = info->iftype,
1617                 .roaming = info->roaming,
1618         };
1619
1620         ret = __rstn_tree_remove(&key);
1621
1622         FREE(key.app_id);
1623         FREE(key.ifname);
1624         FREE(key.imsi);
1625         return ret;
1626 }
1627
1628 int stc_monitor_get_counter_socket(void)
1629 {
1630         return g_system->contr_sock;
1631 }