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