src/monitor/stc-monitor.c

   1 /*
   2  * Copyright (c) 2016 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include <linux/netlink.h>
  18 #include <vconf.h>
  19 #include <vconf-keys.h>
  20
  21 #include "stc-default-connection.h"
  22 #include "helper-nl.h"
  23 #include "helper-nfacct-rule.h"
  24 #include "helper-net-cls.h"
  25 #include "helper-cgroup.h"
  26 #include "counter.h"
  27 #include "table-statistics.h"
  28 #include "table-counters.h"
  29 #include "stc-exception.h"
  30 #include "stc-monitor.h"
  31 #include "stc-manager-plugin.h"
  32
  33 #define MAX_INT_LENGTH 128
  34 #define VCONFKEY_STC_BACKGROUND_STATE "db/stc/background_state"
  35
  36 typedef struct {
  37         stc_app_key_s *app_key;
  38         stc_process_key_s *proc_key;
  39         gboolean entry_removed;
  40 } remove_pid_context_s;
  41
  42 typedef struct {
  43         struct nfacct_rule *counter;
  44         int64_t bytes;
  45         gboolean data_limit_reached;
  46 } classid_bytes_context_s;
  47
  48 static stc_system_s *g_system = NULL;
  49
  50 static nfacct_rule_jump __get_jump_by_intend(struct nfacct_rule *counter)
  51 {
  52         if (counter->intend == NFACCT_WARN)
  53                 return NFACCT_JUMP_ACCEPT;
  54         else if (counter->intend == NFACCT_BLOCK)
  55                 return NFACCT_JUMP_REJECT;
  56
  57         return NFACCT_JUMP_UNKNOWN;
  58 }
  59
  60 static stc_error_e __add_iptables_in(struct nfacct_rule *counter)
  61 {
  62         if (counter == NULL)
  63                 return STC_ERROR_INVALID_PARAMETER;
  64
  65         counter->action = NFACCT_ACTION_INSERT;
  66         counter->iotype = NFACCT_COUNTER_IN;
  67         counter->jump = __get_jump_by_intend(counter);
  68         counter->iptype = NFACCT_TYPE_IPV4;
  69         counter->send_limit = 0;
  70         counter->rcv_limit = 0;
  71
  72         return produce_net_rule(counter);
  73 }
  74
  75 static stc_error_e __add_iptables_out(struct nfacct_rule *counter)
  76 {
  77         if (counter == NULL)
  78                 return STC_ERROR_INVALID_PARAMETER;
  79
  80         counter->action = NFACCT_ACTION_INSERT;
  81         counter->iotype = NFACCT_COUNTER_OUT;
  82         counter->jump = __get_jump_by_intend(counter);
  83         counter->iptype = NFACCT_TYPE_IPV4;
  84         counter->send_limit = 0;
  85         counter->rcv_limit = 0;
  86
  87         return produce_net_rule(counter);
  88 }
  89
  90 static stc_error_e __del_iptables_in(struct nfacct_rule *counter)
  91 {
  92         if (counter == NULL)
  93                 return STC_ERROR_INVALID_PARAMETER;
  94
  95         counter->action = NFACCT_ACTION_DELETE;
  96         counter->iotype = NFACCT_COUNTER_IN;
  97         counter->jump = __get_jump_by_intend(counter);
  98         counter->iptype = NFACCT_TYPE_IPV4;
  99         counter->send_limit = 0;
 100         counter->rcv_limit = 0;
 101
 102         return produce_net_rule(counter);
 103 }
 104
 105 static stc_error_e __del_iptables_out(struct nfacct_rule *counter)
 106 {
 107         if (counter == NULL)
 108                 return STC_ERROR_INVALID_PARAMETER;
 109
 110         counter->action = NFACCT_ACTION_DELETE;
 111         counter->iotype = NFACCT_COUNTER_OUT;
 112         counter->jump = __get_jump_by_intend(counter);
 113         counter->iptype = NFACCT_TYPE_IPV4;
 114         counter->send_limit = 0;
 115         counter->rcv_limit = 0;
 116
 117         return produce_net_rule(counter);
 118 }
 119
 120 static stc_error_e __add_ip6tables_in(struct nfacct_rule *counter)
 121 {
 122         if (counter == NULL)
 123                 return STC_ERROR_INVALID_PARAMETER;
 124
 125         counter->action = NFACCT_ACTION_INSERT;
 126         counter->iotype = NFACCT_COUNTER_IN;
 127         counter->jump = __get_jump_by_intend(counter);
 128         counter->iptype = NFACCT_TYPE_IPV6;
 129         counter->send_limit = 0;
 130         counter->rcv_limit = 0;
 131
 132         return produce_net_rule(counter);
 133 }
 134
 135 static stc_error_e __add_ip6tables_out(struct nfacct_rule *counter)
 136 {
 137         if (counter == NULL)
 138                 return STC_ERROR_INVALID_PARAMETER;
 139
 140         counter->action = NFACCT_ACTION_INSERT;
 141         counter->iotype = NFACCT_COUNTER_OUT;
 142         counter->jump = __get_jump_by_intend(counter);
 143         counter->iptype = NFACCT_TYPE_IPV6;
 144         counter->send_limit = 0;
 145         counter->rcv_limit = 0;
 146
 147         return produce_net_rule(counter);
 148 }
 149
 150 static stc_error_e __del_ip6tables_in(struct nfacct_rule *counter)
 151 {
 152         if (counter == NULL)
 153                 return STC_ERROR_INVALID_PARAMETER;
 154
 155         counter->action = NFACCT_ACTION_DELETE;
 156         counter->iotype = NFACCT_COUNTER_IN;
 157         counter->jump = __get_jump_by_intend(counter);
 158         counter->iptype = NFACCT_TYPE_IPV6;
 159         counter->send_limit = 0;
 160         counter->rcv_limit = 0;
 161
 162         return produce_net_rule(counter);
 163 }
 164
 165 static stc_error_e __del_ip6tables_out(struct nfacct_rule *counter)
 166 {
 167         if (counter == NULL)
 168                 return STC_ERROR_INVALID_PARAMETER;
 169
 170         counter->action = NFACCT_ACTION_DELETE;
 171         counter->iotype = NFACCT_COUNTER_OUT;
 172         counter->jump = __get_jump_by_intend(counter);
 173         counter->iptype = NFACCT_TYPE_IPV6;
 174         counter->send_limit = 0;
 175         counter->rcv_limit = 0;
 176
 177         return produce_net_rule(counter);
 178 }
 179
 180 static int __processes_tree_key_compare(gconstpointer a, gconstpointer b,
 181                                         gpointer UNUSED user_data)
 182 {
 183         stc_process_key_s *key_a = (stc_process_key_s *)a;
 184         stc_process_key_s *key_b = (stc_process_key_s *)b;
 185
 186         return key_a->pid - key_b->pid;
 187 }
 188
 189 static void __processes_tree_value_free(gpointer data)
 190 {
 191         stc_process_value_s *value = (stc_process_value_s *)data;
 192
 193         FREE(value);
 194 }
 195
 196 static void __processes_tree_key_free(gpointer data)
 197 {
 198         stc_process_key_s *key = (stc_process_key_s *)data;
 199
 200         FREE(key);
 201 }
 202
 203 static int __apps_tree_key_compare(gconstpointer a, gconstpointer b,
 204                                    gpointer UNUSED user_data)
 205 {
 206         stc_app_key_s *key_a = (stc_app_key_s *)a;
 207         stc_app_key_s *key_b = (stc_app_key_s *)b;
 208         gint ret;
 209
 210         ret = g_strcmp0(key_a->pkg_id, key_b->pkg_id);
 211         if (ret)
 212                 return ret;
 213
 214         return g_strcmp0(key_a->app_id, key_b->app_id);
 215 }
 216
 217 static void __apps_tree_value_free(gpointer data)
 218 {
 219         stc_app_value_s *value = (stc_app_value_s *)data;
 220
 221         g_tree_destroy(value->processes);
 222         value->processes = NULL;
 223
 224         FREE(value);
 225 }
 226
 227 static void __apps_tree_key_free(gpointer data)
 228 {
 229         stc_app_key_s *key = (stc_app_key_s *)data;
 230
 231         g_free(key->pkg_id);
 232         g_free(key->app_id);
 233         FREE(key);
 234 }
 235
 236 static int __rstns_tree_key_compare(gconstpointer a, gconstpointer b,
 237                                     gpointer UNUSED user_data)
 238 {
 239         stc_rstn_key_s *key_a = (stc_rstn_key_s *)a;
 240         stc_rstn_key_s *key_b = (stc_rstn_key_s *)b;
 241         int ret;
 242
 243         ret = g_strcmp0(key_a->app_id, key_b->app_id);
 244         if (ret != 0)
 245                 return ret;
 246
 247         ret = g_strcmp0(key_a->ifname, key_b->ifname);
 248         if (ret != 0)
 249                 return ret;
 250
 251         ret = g_strcmp0(key_a->subscriber_id, key_b->subscriber_id);
 252         if (ret != 0)
 253                 return ret;
 254
 255         ret = key_a->iftype - key_b->iftype;
 256         if (ret != 0)
 257                 return ret;
 258
 259         return 0;
 260 }
 261
 262 static void __rstns_tree_value_free(gpointer data)
 263 {
 264         stc_rstn_value_s *value = (stc_rstn_value_s *)data;
 265
 266         FREE(value);
 267 }
 268
 269 static void __rstns_tree_key_free(gpointer data)
 270 {
 271         stc_rstn_key_s *key = (stc_rstn_key_s *)data;
 272
 273         FREE(key->app_id);
 274         FREE(key->ifname);
 275         FREE(key->subscriber_id);
 276         FREE(key);
 277 }
 278
 279 static gboolean __processes_tree_foreach_print(gpointer key, gpointer value,
 280                                                gpointer data)
 281 {
 282         stc_process_key_s *proc_key = (stc_process_key_s *)key;
 283         stc_process_value_s *proc_value = (stc_process_value_s *)value;
 284
 285         STC_LOGD("Process entry => PID [\033[1;33m%d\033[0;m], Ground state [%d]",
 286                  proc_key->pid, proc_value->ground);
 287         return FALSE;
 288 }
 289
 290 static void __processes_tree_printall(GTree *processes)
 291 {
 292         g_tree_foreach(processes, __processes_tree_foreach_print, NULL);
 293 }
 294
 295 static gboolean __apps_tree_foreach_print(gpointer key, gpointer value,
 296                                           gpointer data)
 297 {
 298         stc_app_key_s *app_key = (stc_app_key_s *)key;
 299         stc_app_value_s *app_value = (stc_app_value_s *)value;
 300
 301         STC_LOGD("Application info => Pkg ID [\033[0;34m%s\033[0;m], "
 302                  "App ID [\033[0;32m%s\033[0;m], Type [%d], classid [%d],"
 303                  " counter [ in (%lld), out (%lld)]",
 304                  app_key->pkg_id, app_key->app_id,
 305                  app_value->type, app_value->classid,
 306                  app_value->data_usage.in_bytes, app_value->data_usage.out_bytes);
 307
 308         __processes_tree_printall(app_value->processes);
 309         return FALSE;
 310 }
 311
 312 static void __apps_tree_printall(void)
 313 {
 314         g_tree_foreach(g_system->apps, __apps_tree_foreach_print, NULL);
 315 }
 316
 317 static gboolean __apps_tree_foreach_remove_pid(gpointer key, gpointer value,
 318                                                gpointer data)
 319 {
 320         remove_pid_context_s *context = (remove_pid_context_s *)data;
 321         stc_app_value_s *app_value = (stc_app_value_s *)value;
 322
 323         if (!g_tree_remove(app_value->processes, context->proc_key)) {
 324                 if (STC_DEBUG_LOG)
 325                         STC_LOGD("key not found");
 326                 return FALSE;
 327         }
 328
 329         context->entry_removed = TRUE;
 330         context->app_key = (stc_app_key_s *)key;
 331
 332         return TRUE;
 333 }
 334
 335 static stc_app_value_s * __application_lookup(GTree *apps,
 336                                               const stc_app_key_s *key)
 337 {
 338         stc_app_value_s *lookup;
 339
 340         ret_value_msg_if(apps == NULL, NULL, "apps is null!");
 341
 342         lookup = g_tree_lookup(apps, key);
 343
 344         return lookup;
 345 }
 346
 347 static stc_process_value_s * __process_lookup(GTree *processes,
 348                                               const stc_process_key_s *key)
 349 {
 350         stc_process_value_s *lookup;
 351
 352         ret_value_msg_if(processes == NULL, NULL, "processes is null!");
 353
 354         lookup = g_tree_lookup(processes, key);
 355
 356         return lookup;
 357 }
 358
 359 static gboolean __processes_tree_check_empty(gpointer key, gpointer value,
 360                                              gpointer data)
 361 {
 362         guint *pid_count = (guint *)data;
 363         (*pid_count)++;
 364         return TRUE;
 365 }
 366
 367 static gboolean __add_application_monitor(gpointer key, gpointer value,
 368                                           gpointer data)
 369 {
 370         stc_app_value_s *app_value = (stc_app_value_s *)value;
 371         default_connection_s *connection = (default_connection_s *)data;
 372         stc_s *stc = stc_get_manager();
 373
 374         if (app_value->classid == STC_TOTAL_DATACALL_CLASSID ||
 375             app_value->classid == STC_TOTAL_WIFI_CLASSID ||
 376             app_value->classid == STC_TOTAL_BLUETOOTH_CLASSID)
 377                 return FALSE;
 378
 379         if (stc && connection && connection->ifname) {
 380                 struct nfacct_rule counter;
 381
 382                 if (!stc->carg) {
 383                         stc->carg = MALLOC0(counter_arg_s, 1);
 384                         if (stc->carg == NULL)
 385                                 return FALSE;
 386
 387                         stc->carg->sock = stc_monitor_get_counter_socket();
 388                 }
 389
 390                 memset(&counter, 0, sizeof(struct nfacct_rule));
 391
 392                 counter.carg = stc->carg;
 393                 counter.classid = app_value->classid;
 394                 counter.intend = NFACCT_COUNTER;
 395                 counter.iftype = connection->type;
 396                 g_strlcpy(counter.ifname, connection->ifname, MAX_IFACE_LENGTH);
 397
 398                 if (app_value->classid == STC_TOTAL_IPV4_CLASSID) {
 399                         __add_iptables_in(&counter);
 400                         __add_iptables_out(&counter);
 401                 } else if (app_value->classid == STC_TOTAL_IPV6_CLASSID) {
 402                         __add_ip6tables_in(&counter);
 403                         __add_ip6tables_out(&counter);
 404                 } else {
 405                         __add_iptables_in(&counter);
 406                         __add_iptables_out(&counter);
 407                         __add_ip6tables_in(&counter);
 408                         __add_ip6tables_out(&counter);
 409                 }
 410         }
 411
 412         return FALSE;
 413 }
 414
 415 static gboolean __remove_application_monitor(gpointer key, gpointer value,
 416                                              gpointer data)
 417 {
 418         stc_app_value_s *app_value = (stc_app_value_s *)value;
 419         default_connection_s *connection = (default_connection_s *)data;
 420         stc_s *stc = stc_get_manager();
 421
 422         if (stc && connection && connection->ifname) {
 423                 struct nfacct_rule counter;
 424
 425                 if (!stc->carg) {
 426                         stc->carg = MALLOC0(counter_arg_s, 1);
 427                         if (stc->carg == NULL)
 428                                 return FALSE;
 429
 430                         stc->carg->sock = stc_monitor_get_counter_socket();
 431                 }
 432
 433                 memset(&counter, 0, sizeof(struct nfacct_rule));
 434
 435                 counter.carg = stc->carg;
 436                 counter.classid = app_value->classid;
 437                 counter.intend = NFACCT_COUNTER;
 438                 counter.iftype = connection->type;
 439                 g_strlcpy(counter.ifname, connection->ifname, MAX_IFACE_LENGTH);
 440
 441                 __del_iptables_in(&counter);
 442                 __del_iptables_out(&counter);
 443                 __del_ip6tables_in(&counter);
 444                 __del_ip6tables_out(&counter);
 445         }
 446
 447         return FALSE;
 448 }
 449
 450 static void __print_rstn(stc_rstn_key_s *rstn_key, stc_rstn_value_s *rstn_value)
 451 {
 452         STC_LOGI("rstn info => rstn_id [%llu], "
 453                  "app_id [%s], classid [%lu], ifname [%s], "
 454                  "iftype [%d], rst_state [%d], "
 455                  "limit [ (%lld) bytes], "
 456                  "warn_limit [ (%lld) bytes], "
 457                  "counter [ (%lld) bytes], "
 458                  "roaming [%d], subscriber_id [%s]",
 459                  rstn_value->restriction_id,
 460                  rstn_key->app_id, rstn_value->classid , rstn_key->ifname,
 461                  rstn_key->iftype, rstn_value->rst_state,
 462                  rstn_value->data_limit,
 463                  rstn_value->data_warn_limit,
 464                  rstn_value->data_counter,
 465                  rstn_key->roaming, rstn_key->subscriber_id);
 466 }
 467
 468 static void __process_restriction(enum traffic_restriction_type rst_type,
 469                                   stc_rstn_key_s *rstn_key,
 470                                   stc_rstn_value_s *rstn_value, void *data)
 471 {
 472         int64_t effective_data_limit, effective_data_warn_limit;
 473         default_connection_s *old_connection = (default_connection_s *)data;
 474         default_connection_s *connection = NULL;
 475
 476         if (old_connection != NULL)
 477                 connection = old_connection;
 478         else
 479                 connection = stc_get_default_connection();
 480
 481         /* no default ifname */
 482         if (connection->ifname == NULL)
 483                 return;
 484
 485         /* rstn not applicable for this interface */
 486         if (rstn_key->ifname != NULL && g_strcmp0("", rstn_key->ifname) != 0 &&
 487             g_strcmp0(connection->ifname, rstn_key->ifname) != 0)
 488                 return;
 489
 490         /* classid is invalid */
 491         if (rstn_value->classid == STC_UNKNOWN_CLASSID)
 492                 return;
 493
 494         effective_data_limit = rstn_value->data_limit;
 495         effective_data_warn_limit = rstn_value->data_warn_limit;
 496
 497         if (rst_type == RST_SET) {
 498                 /* TODO: Change this to runtime memory */
 499                 table_counters_info info;
 500
 501                 memset(&info, 0, sizeof(table_counters_info));
 502                 table_counters_get(rstn_value->restriction_id, &info);
 503
 504                 effective_data_limit -= info.data_counter;
 505                 effective_data_warn_limit -= info.data_counter;
 506
 507                 if (effective_data_limit < 0) {
 508                         effective_data_limit = 0;
 509                         rstn_value->data_limit_reached = TRUE;
 510                 }
 511
 512                 if (effective_data_warn_limit < 0)
 513                         effective_data_warn_limit = 0;
 514
 515                 STC_LOGD("datausage [%lld] bytes", info.data_counter);
 516         }
 517
 518         STC_LOGD("rstn_id [%llu], effective_data_limit [%lld] bytes, "
 519                  "effective_data_warn_limit [%lld] bytes",
 520                  rstn_value->restriction_id, effective_data_limit,
 521                  effective_data_warn_limit);
 522
 523         switch (rst_type) {
 524         case RST_SET:
 525                 if (effective_data_limit <= 0) {
 526                         char *default_ifname = stc_default_connection_get_ifname();
 527                         struct nfacct_rule counter;
 528                         stc_s *stc = stc_get_manager();
 529
 530                         if (!stc->carg) {
 531                                 stc->carg = MALLOC0(counter_arg_s, 1);
 532                                 if (stc->carg == NULL) {
 533                                         g_free(default_ifname);
 534                                         return;
 535                                 }
 536
 537                                 stc->carg->sock =
 538                                         stc_monitor_get_counter_socket();
 539                         }
 540
 541                         counter.carg = stc->carg;
 542                         counter.classid = rstn_value->classid;
 543                         counter.intend = NFACCT_BLOCK;
 544                         counter.iftype = rstn_key->iftype;
 545                         g_strlcpy(counter.ifname, default_ifname,
 546                                   MAX_IFACE_LENGTH);
 547
 548                         generate_counter_name(&counter);
 549                         g_free(default_ifname);
 550
 551                         /* iptables rule */
 552                         __add_iptables_in(&counter);
 553                         __add_iptables_out(&counter);
 554
 555                         /* ip6tables rule */
 556                         __add_ip6tables_in(&counter);
 557                         __add_ip6tables_out(&counter);
 558                 }
 559
 560                 rstn_value->rst_state = STC_RESTRICTION_ACTIVATED;
 561                 rstn_value->data_limit_reached = FALSE;
 562                 break;
 563         case RST_EXCLUDE:
 564                 ;//Do Nothing
 565                 break;
 566         case RST_UNSET:
 567                 {
 568                         char *default_ifname = stc_default_connection_get_ifname();
 569                         struct nfacct_rule counter;
 570                         stc_s *stc = stc_get_manager();
 571
 572                         if (!stc->carg) {
 573                                 stc->carg = MALLOC0(counter_arg_s, 1);
 574                                 if (stc->carg == NULL) {
 575                                         g_free(default_ifname);
 576                                         return;
 577                                 }
 578
 579                                 stc->carg->sock =
 580                                         stc_monitor_get_counter_socket();
 581                         }
 582
 583                         counter.carg = stc->carg;
 584                         counter.classid = rstn_value->classid;
 585                         counter.intend = NFACCT_BLOCK;
 586                         counter.iftype = rstn_key->iftype;
 587                         g_strlcpy(counter.ifname, default_ifname,
 588                                   MAX_IFACE_LENGTH);
 589
 590                         generate_counter_name(&counter);
 591                         g_free(default_ifname);
 592
 593                         /* iptables rule */
 594                         __del_iptables_in(&counter);
 595                         __del_iptables_out(&counter);
 596
 597                         /* ip6tables rule */
 598                         __del_ip6tables_in(&counter);
 599                         __del_ip6tables_out(&counter);
 600
 601                         rstn_value->rst_state = STC_RESTRICTION_REMOVED;
 602                         rstn_value->data_limit_reached = FALSE;
 603                 }
 604                 break;
 605         default:
 606                 ;//Do Nothing
 607         }
 608 }
 609
 610 static gboolean __remove_rstns_foreach_application(gpointer key,
 611                                                    gpointer value,
 612                                                    gpointer data)
 613 {
 614         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 615         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 616         gchar *app_id = (gchar *)data;
 617
 618         /* rstn rule is not for applications */
 619         if (rstn_key->app_id == NULL)
 620                 goto out;
 621
 622         /* rstn rule is not for this application */
 623         if (g_strcmp0(rstn_key->app_id, app_id) != 0)
 624                 goto out;
 625
 626         /* rstn rule is already removed */
 627         if (rstn_value->rst_state == STC_RESTRICTION_REMOVED)
 628                 goto out;
 629
 630         /* remove restriction from system */
 631         __process_restriction(RST_UNSET, rstn_key, rstn_value, data);
 632
 633         __print_rstn(rstn_key, rstn_value);
 634 out:
 635         return FALSE;
 636 }
 637
 638 static void __remove_rstns_for_application(gchar *app_id)
 639 {
 640         g_tree_foreach(g_system->rstns, __remove_rstns_foreach_application,
 641                        app_id);
 642 }
 643
 644 static stc_error_e __application_remove_if_empty(const stc_app_key_s *app_key)
 645 {
 646         stc_error_e ret = STC_ERROR_NONE;
 647         guint pid_count = 0;
 648         stc_app_value_s *lookup;
 649
 650         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
 651
 652         lookup = __application_lookup(g_system->apps, app_key);
 653         if (!lookup) {
 654                 STC_LOGE("app_key not found");
 655                 return STC_ERROR_NO_DATA;
 656         }
 657
 658         g_tree_foreach(lookup->processes, __processes_tree_check_empty,
 659                        &pid_count);
 660
 661         if (!pid_count) {
 662                 /* remove nfacct rule for this classid */
 663                 __remove_application_monitor((gpointer) app_key, lookup,
 664                                              stc_get_default_connection());
 665                 __remove_rstns_for_application(app_key->app_id);
 666         }
 667
 668         if (!g_tree_remove(g_system->apps, app_key)) {
 669                 ret = STC_ERROR_NO_DATA;
 670                 STC_LOGE("key not found");
 671         }
 672
 673         return ret;
 674 }
 675
 676 static stc_error_e __close_contr_sock(stc_system_s *system)
 677 {
 678         ret_value_msg_if(system == NULL, STC_ERROR_INVALID_PARAMETER, "invalid parameter");
 679
 680         /* close netlink socket for updating kernel counters */
 681         if (system->contr_sock != -1) {
 682                 close(system->contr_sock);
 683                 system->contr_sock = -1;
 684         }
 685
 686         if (system->contr_gsource_id != 0) {
 687                 g_source_remove(system->contr_gsource_id);
 688                 system->contr_gsource_id = 0;
 689         }
 690
 691         return STC_ERROR_NONE;
 692 }
 693
 694 static gboolean __process_contr_reply(GIOChannel *source,
 695                                       GIOCondition condition,
 696                                       gpointer user_data);
 697
 698 static stc_error_e __close_and_reopen_contr_sock(stc_system_s *system)
 699 {
 700         GIOChannel *gio = NULL;
 701         ret_value_msg_if(system == NULL, STC_ERROR_INVALID_PARAMETER, "invalid parameter");
 702
 703         /* close netlink socket for updating kernel counters */
 704         if (system->contr_sock != -1) {
 705                 close(system->contr_sock);
 706                 system->contr_sock = -1;
 707         }
 708
 709         if (system->contr_gsource_id != 0) {
 710                 g_source_remove(system->contr_gsource_id);
 711                 system->contr_gsource_id = 0;
 712         }
 713
 714         /* create netlink socket for updating kernel counters */
 715         system->contr_sock = create_netlink(NETLINK_NETFILTER, 0);
 716         if (system->contr_sock < 0) {
 717                 STC_LOGE("failed to open socket");
 718                 FREE(system);
 719                 return STC_ERROR_FAIL;
 720         }
 721
 722         gio = g_io_channel_unix_new(system->contr_sock);
 723         system->contr_gsource_id =
 724                 g_io_add_watch(gio, G_IO_IN | G_IO_ERR | G_IO_HUP,
 725                                (GIOFunc) __process_contr_reply,
 726                                NULL);
 727         g_io_channel_unref(gio);
 728
 729         return STC_ERROR_NONE;
 730 }
 731
 732 static gboolean __rstn_counter_update(stc_rstn_key_s *rstn_key,
 733                                       stc_rstn_value_s *rstn_value,
 734                                       classid_bytes_context_s *context)
 735 {
 736         switch (context->counter->iotype) {
 737         case NFACCT_COUNTER_IN:
 738         case NFACCT_COUNTER_OUT:
 739                 rstn_value->data_counter += context->bytes;
 740
 741                 if (rstn_value->data_counter >= rstn_value->data_warn_limit &&
 742                     rstn_value->warn_limit_crossed_notified == FALSE) {
 743
 744                         gboolean rv;
 745                         char iftype[MAX_INT_LENGTH];
 746                         char byte[MAX_INT_LENGTH];
 747                         stc_s *stc = (stc_s *)stc_get_manager();
 748                         ret_value_msg_if(stc == NULL, FALSE, "failed to get stc data");
 749
 750                         /* emit signal */
 751                         rv = stc_manager_dbus_emit_signal(stc->connection,
 752                                                           STC_DBUS_SERVICE_RESTRICTION_PATH,
 753                                                           STC_DBUS_INTERFACE_RESTRICTION,
 754                                                           "WarnThresholdCrossed",
 755                                                           g_variant_new("(si)", rstn_key->app_id, rstn_key->iftype));
 756                         if (rv == TRUE)
 757                                 rstn_value->warn_limit_crossed_notified = TRUE;
 758
 759                         snprintf(iftype, MAX_INT_LENGTH, "%d", rstn_key->iftype);
 760                         snprintf(byte, MAX_INT_LENGTH, "%lld", rstn_value->data_warn_limit);
 761                         stc_send_warn_message_to_net_popup("warn threshold crossed",
 762                                                            "warning_noti",
 763                                                            rstn_key->app_id,
 764                                                            iftype, byte);
 765                 }
 766
 767                 if (rstn_value->data_counter >= rstn_value->data_limit &&
 768                     rstn_value->rstn_limit_crossed_notified == FALSE) {
 769
 770                         gboolean rv;
 771                         char iftype[MAX_INT_LENGTH];
 772                         char byte[MAX_INT_LENGTH];
 773                         stc_s *stc = (stc_s *)stc_get_manager();
 774                         ret_value_msg_if(stc == NULL, FALSE, "failed to get stc data");
 775
 776                         /* block immediately */
 777                         context->counter->intend = NFACCT_BLOCK;
 778                         __del_iptables_in(context->counter);
 779                         __del_iptables_out(context->counter);
 780                         __add_iptables_in(context->counter);
 781                         __add_iptables_out(context->counter);
 782
 783                         __del_ip6tables_in(context->counter);
 784                         __del_ip6tables_out(context->counter);
 785                         __add_ip6tables_in(context->counter);
 786                         __add_ip6tables_out(context->counter);
 787                         context->counter->intend = NFACCT_COUNTER;
 788
 789                         rstn_value->data_limit_reached = TRUE;
 790
 791                         /* emit signal */
 792                         rv = stc_manager_dbus_emit_signal(stc->connection,
 793                                                           STC_DBUS_SERVICE_RESTRICTION_PATH,
 794                                                           STC_DBUS_INTERFACE_RESTRICTION,
 795                                                           "RestrictionThresholdCrossed",
 796                                                           g_variant_new("(si)", rstn_key->app_id, rstn_key->iftype));
 797                         if (rv == TRUE)
 798                                 rstn_value->rstn_limit_crossed_notified = TRUE;
 799
 800                         snprintf(iftype, MAX_INT_LENGTH, "%d", rstn_key->iftype);
 801                         snprintf(byte, MAX_INT_LENGTH, "%lld", rstn_value->data_limit);
 802                         stc_send_restriction_message_to_net_popup("restriction threshold crossed",
 803                                                                   "restriction_noti", rstn_key->app_id,
 804                                                                   iftype, byte);
 805                 }
 806
 807                 g_system->rstns_tree_updated = TRUE;
 808                 __print_rstn(rstn_key, rstn_value);
 809                 break;
 810         default:
 811                 STC_LOGE("unknown iotype");
 812         }
 813
 814         return FALSE;
 815 }
 816
 817 static gboolean __interface_rstn_counter_update(stc_rstn_key_s *rstn_key,
 818                                                 stc_rstn_value_s *rstn_value,
 819                                                 classid_bytes_context_s *context)
 820 {
 821         if ((rstn_value->classid == STC_TOTAL_DATACALL_CLASSID &&
 822              context->counter->iftype == STC_IFACE_DATACALL) ||
 823             (rstn_value->classid == STC_TOTAL_WIFI_CLASSID &&
 824              context->counter->iftype == STC_IFACE_WIFI) ||
 825             (rstn_value->classid == STC_TOTAL_BLUETOOTH_CLASSID &&
 826              context->counter->iftype == STC_IFACE_BLUETOOTH)) {
 827                 context->counter->classid = rstn_value->classid;
 828                 return __rstn_counter_update(rstn_key, rstn_value, context);
 829         }
 830
 831         return FALSE;
 832 }
 833
 834 static gboolean __rstn_counter_update_foreach_classid(gpointer key,
 835                                                       gpointer value,
 836                                                       gpointer data)
 837 {
 838         gboolean rv = FALSE;
 839         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
 840         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 841         classid_bytes_context_s *context = (classid_bytes_context_s *)data;
 842         uint32_t classid;
 843
 844         if (context->counter->intend != NFACCT_COUNTER)
 845                 goto try_next_callback;
 846
 847         if (rstn_value->data_limit_reached == TRUE) {
 848                 context->data_limit_reached = TRUE;
 849                 goto try_next_callback;
 850         }
 851
 852         classid = context->counter->classid;
 853         rv = __interface_rstn_counter_update(rstn_key, rstn_value, context);
 854
 855         context->counter->classid = classid;
 856         if (rstn_value->classid != context->counter->classid)
 857                 goto try_next_callback;
 858
 859         rv = __rstn_counter_update(rstn_key, rstn_value, context);
 860
 861 try_next_callback:
 862         return rv;
 863 }
 864
 865 static gboolean __update_app_statistics(gpointer key, gpointer value,
 866                                         gpointer data)
 867 {
 868         stc_app_key_s *app_key = (stc_app_key_s *)key;
 869         stc_app_value_s *app_value = (stc_app_value_s *)value;
 870         time_t *touch_time = (time_t *)data;
 871         stc_db_classid_iftype_key stat_key;
 872         stc_db_app_stats stat;
 873         default_connection_s *default_connection = stc_get_default_connection();
 874
 875         memset(&stat_key, 0, sizeof(stc_db_classid_iftype_key));
 876         memset(&stat, 0 , sizeof(stc_db_app_stats));
 877
 878         stat_key.classid = app_value->classid;
 879         stat_key.iftype = default_connection->type;
 880
 881         if (STC_IFACE_DATACALL == stat_key.iftype)
 882                 stat_key.subscriber_id = g_strdup(default_connection->subscriber_id);
 883         else
 884                 stat_key.subscriber_id = g_strdup("none_subid");
 885
 886         g_strlcpy(stat_key.ifname, default_connection->ifname,
 887                   MAX_IFACE_LENGTH);
 888
 889         stat.app_id = g_strdup(app_key->app_id);
 890         stat.snd_count = app_value->counter.out_bytes;
 891         stat.rcv_count = app_value->counter.in_bytes;
 892         stat.is_roaming = default_connection->roaming;
 893         stat.ground = STC_APP_STATE_UNKNOWN;
 894
 895         table_statistics_insert(&stat_key, &stat, *touch_time);
 896
 897         app_value->counter.out_bytes = 0;
 898         app_value->counter.in_bytes = 0;
 899
 900         FREE(stat.app_id);
 901         FREE(stat_key.subscriber_id);
 902
 903         return FALSE;
 904 }
 905
 906 static gboolean __flush_apps_stats_to_database(gpointer user_data)
 907 {
 908         time_t current_time = time(0);
 909
 910         if (g_system->apps_tree_updated == FALSE)
 911                 return G_SOURCE_REMOVE;
 912
 913         g_system->apps_tree_updated = FALSE;
 914
 915         if (g_system->apps)
 916                 g_tree_foreach(g_system->apps,
 917                                __update_app_statistics,
 918                                &current_time);
 919
 920         STC_LOGI("Flushed app stats to database");
 921         return G_SOURCE_REMOVE;
 922 }
 923
 924 static gboolean __update_counter_statistics(gpointer key, gpointer value,
 925                                             gpointer data)
 926 {
 927         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
 928         table_counters_info info = {
 929                 .restriction_id = rstn_value->restriction_id,
 930                 .data_counter = rstn_value->data_counter
 931         };
 932
 933         table_counters_update_counters(&info);
 934
 935         return FALSE;
 936 }
 937
 938 static gboolean __flush_rstns_counter_to_database(gpointer user_data)
 939 {
 940         time_t current_time = time(0);
 941
 942         if (g_system->rstns_tree_updated == FALSE)
 943                 return G_SOURCE_REMOVE;
 944
 945         g_system->rstns_tree_updated = FALSE;
 946
 947         if (g_system->rstns)
 948                 g_tree_foreach(g_system->rstns,
 949                                __update_counter_statistics,
 950                                &current_time);
 951
 952         STC_LOGI("Flushed rstns counters to database");
 953         return G_SOURCE_REMOVE;
 954 }
 955
 956 static void __app_counter_update(stc_app_key_s *app_key,
 957                                  stc_app_value_s *app_value,
 958                                  classid_bytes_context_s *context)
 959 {
 960         switch (context->counter->iotype) {
 961         case NFACCT_COUNTER_IN:
 962                 app_value->data_usage.in_bytes += context->bytes;
 963                 app_value->counter.in_bytes = context->bytes;
 964                 g_system->apps_tree_updated = TRUE;
 965
 966                 if (STC_DEBUG_LOG)
 967                         __apps_tree_foreach_print(app_key, app_value, NULL);
 968                 break;
 969         case NFACCT_COUNTER_OUT:
 970                 app_value->data_usage.out_bytes += context->bytes;
 971                 app_value->counter.out_bytes = context->bytes;
 972                 g_system->apps_tree_updated = TRUE;
 973
 974                 if (STC_DEBUG_LOG)
 975                         __apps_tree_foreach_print(app_key, app_value, NULL);
 976                 break;
 977         default:
 978                 STC_LOGE("unknown iotype");
 979         }
 980 }
 981
 982 static void __interface_counter_update(stc_app_key_s *app_key,
 983                                        stc_app_value_s *app_value,
 984                                        classid_bytes_context_s *context)
 985 {
 986         if ((app_value->classid == STC_TOTAL_DATACALL_CLASSID &&
 987              context->counter->iftype == STC_IFACE_DATACALL) ||
 988             (app_value->classid == STC_TOTAL_WIFI_CLASSID &&
 989              context->counter->iftype == STC_IFACE_WIFI) ||
 990             (app_value->classid == STC_TOTAL_BLUETOOTH_CLASSID &&
 991              context->counter->iftype == STC_IFACE_BLUETOOTH))
 992                 __app_counter_update(app_key, app_value, context);
 993 }
 994
 995
 996 static gboolean __apps_counter_update_foreach_classid(gpointer key,
 997                                                       gpointer value,
 998                                                       gpointer data)
 999 {
1000         stc_app_key_s *app_key = (stc_app_key_s *)key;
1001         stc_app_value_s *app_value = (stc_app_value_s *)value;
1002         classid_bytes_context_s *context = (classid_bytes_context_s *)data;
1003
1004         if (context->counter->intend != NFACCT_COUNTER)
1005                 goto try_next_callback;
1006
1007         __interface_counter_update(app_key, app_value, context);
1008
1009         if (app_value->classid != context->counter->classid)
1010                 goto try_next_callback;
1011
1012         __app_counter_update(app_key, app_value, context);
1013
1014 try_next_callback:
1015         return FALSE;
1016 }
1017
1018 static void __fill_nfacct_result(char *cnt_name, int64_t bytes,
1019                                  struct counter_arg *carg)
1020 {
1021         struct nfacct_rule counter = {
1022                 .carg = carg,
1023                 .name = {0},
1024                 .ifname = {0},
1025                 0
1026         };
1027
1028         classid_bytes_context_s context = {
1029                 .counter = &counter,
1030                 .bytes = bytes,
1031                 .data_limit_reached = FALSE,
1032         };
1033
1034         if (STC_DEBUG_LOG)
1035                 STC_LOGD("cnt_name %s", cnt_name);
1036
1037         if (!recreate_counter_by_name(cnt_name, &counter)) {
1038                 STC_LOGE("Can't parse counter name %s", cnt_name);
1039                 return;
1040         }
1041
1042         STC_LOGI("classid %lu, iftype %u, iotype %d, intend %d, ifname %s, bytes %lld",
1043                  context.counter->classid, context.counter->iftype,
1044                  context.counter->iotype, context.counter->intend,
1045                  context.counter->ifname, context.bytes);
1046
1047         if (g_system->rstns)
1048                 g_tree_foreach(g_system->rstns,
1049                                __rstn_counter_update_foreach_classid,
1050                                &context);
1051
1052         if (g_system->apps)
1053                 g_tree_foreach(g_system->apps,
1054                                __apps_counter_update_foreach_classid,
1055                                &context);
1056 }
1057
1058 static int __fill_counters(struct rtattr *attr_list[__NFACCT_MAX],
1059                            void *user_data)
1060 {
1061         struct counter_arg *carg = user_data;
1062         char *cnt_name = (char *)RTA_DATA(attr_list[NFACCT_NAME]);
1063         if (carg->initiate) {
1064                 /**
1065                  * TODO: this will be used when daemon starts to update existing
1066                  * counter data if present.
1067                  *
1068                  populate_counters(cnt_name, carg);
1069                  */
1070         } else {
1071                 int64_t *bytes_p =
1072                         (int64_t *)RTA_DATA(attr_list[NFACCT_BYTES]);
1073                 int bytes = be64toh(*bytes_p);
1074                 if (bytes) {
1075                         ++carg->serialized_counters;
1076                         __fill_nfacct_result(cnt_name, bytes, carg);
1077                 }
1078         }
1079
1080         return 0;
1081 }
1082
1083 static int __post_fill_counters(void *user_data)
1084 {
1085         struct counter_arg *carg = user_data;
1086
1087         if (carg->initiate)
1088                 carg->initiate = 0;
1089
1090         return 0;
1091 }
1092
1093 static void __process_network_counter(struct genl *ans,
1094                                       struct counter_arg *carg)
1095 {
1096         struct netlink_serialization_params ser_params = {
1097                 .carg = carg,
1098                 .ans = ans,
1099                 .eval_attr = __fill_counters,
1100                 .post_eval_attr = __post_fill_counters,
1101         };
1102
1103         netlink_serialization_command *netlink =
1104                 netlink_create_command(&ser_params);
1105         if (!netlink) {
1106                 STC_LOGE("Can not create command");
1107                 return;
1108         }
1109
1110         netlink->deserialize_answer(&(netlink->params));
1111 }
1112
1113 static gboolean __process_contr_reply(GIOChannel *source,
1114                                       GIOCondition condition,
1115                                       gpointer user_data)
1116 {
1117         int sock = g_io_channel_unix_get_fd(source);
1118         struct genl ans;
1119         int ret;
1120         stc_s *stc = stc_get_manager();
1121
1122         if ((condition & G_IO_ERR) ||
1123             (condition & G_IO_HUP) ||
1124             (condition & G_IO_NVAL)) {
1125                 /* G_IO_ERR/G_IO_HUP/G_IO_NVAL received */
1126
1127                 STC_LOGE("Counter socket received G_IO event, closing socket."
1128                          "G_IO_ERR [%d], G_IO_HUP [%d], G_IO_NVAL [%s]",
1129                          (condition & G_IO_ERR), (condition & G_IO_HUP),
1130                          (condition & G_IO_NVAL));
1131                 __close_and_reopen_contr_sock(g_system);
1132                 return FALSE;
1133         }
1134
1135         if (stc == NULL) {
1136                 STC_LOGE("Can't get stc data");
1137                 goto out;
1138         }
1139
1140         ret = read_netlink(sock,
1141                            &ans, sizeof(struct genl));
1142         /* STC_LOGD("Counter data received ret [%d]", ret); */
1143         if (ret == 0)
1144                 goto out;
1145
1146         stc->carg->ans_len = ret;
1147         __process_network_counter(&ans, stc->carg);
1148
1149         g_idle_add(__flush_apps_stats_to_database, NULL);
1150         g_idle_add(__flush_rstns_counter_to_database, NULL);
1151 out:
1152         return TRUE;
1153 }
1154
1155 static gboolean __update_contr_cb(void *user_data)
1156 {
1157         /* Here we just sent command, answer we receive in another callback */
1158         stc_s *stc = stc_get_manager();
1159         ret_value_msg_if(stc == NULL, STC_ERROR_FAIL, "Can't get stc data");
1160         if (!stc->carg) {
1161                 stc->carg = MALLOC0(counter_arg_s, 1);
1162                 if (stc->carg == NULL)
1163                         return TRUE;  /* we need to continue the timer */
1164
1165                 stc->carg->sock = stc_monitor_get_counter_socket();
1166         }
1167
1168         /* STC_LOGD("Get all counters"); */
1169         nfacct_send_get_all(stc->carg);
1170
1171         /* we need to continue the timer */
1172         return TRUE;
1173 }
1174 #if 0
1175 static gboolean __rstn_tree_foreach_print(gpointer key, gpointer value,
1176                                           gpointer data)
1177 {
1178         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1179         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1180
1181         __print_rstn(rstn_key, rstn_value);
1182         return FALSE;
1183 }
1184
1185 static void __rstn_tree_printall(void)
1186 {
1187         g_tree_foreach(g_system->rstns, __rstn_tree_foreach_print, NULL);
1188 }
1189 #endif
1190 static stc_rstn_value_s * __rstn_lookup(GTree *rstns_tree,
1191                                         const stc_rstn_key_s *key)
1192 {
1193         stc_rstn_value_s *lookup;
1194
1195         ret_value_msg_if(rstns_tree == NULL, NULL, "rstns_tree is null!");
1196
1197         lookup = g_tree_lookup(rstns_tree, key);
1198
1199         return lookup;
1200 }
1201
1202 static gboolean __remove_restriction(gpointer key, gpointer value,
1203                                      gpointer data)
1204 {
1205         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1206         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1207
1208         /* rstn rule is already removed */
1209         if (rstn_value->rst_state == STC_RESTRICTION_REMOVED)
1210                 return FALSE;
1211
1212         __process_restriction(RST_UNSET, rstn_key, rstn_value, data);
1213         __print_rstn(rstn_key, rstn_value);
1214         return FALSE;
1215 }
1216
1217 static gboolean __add_restriction_debug(gpointer key, gpointer value,
1218                                         gpointer data)
1219 {
1220         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1221         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1222
1223         /* rstn rule is activated */
1224         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1225                 return FALSE;
1226
1227         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1228                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1229         else
1230                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1231
1232         __print_rstn(rstn_key, rstn_value);
1233
1234         return FALSE;
1235 }
1236
1237 static gboolean __add_restriction(gpointer key, gpointer value, gpointer data)
1238 {
1239         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1240         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1241
1242         /* rstn rule is activated */
1243         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1244                 return FALSE;
1245
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         return FALSE;
1252 }
1253
1254 static stc_error_e __rstn_tree_remove(stc_rstn_key_s *key)
1255 {
1256         stc_rstn_value_s *lookup_value;
1257
1258         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1259
1260         lookup_value = __rstn_lookup(g_system->rstns, key);
1261         if (!lookup_value) {
1262                 STC_LOGE("key not found");
1263                 return STC_ERROR_NO_DATA;
1264         }
1265
1266         __remove_restriction(key, lookup_value, NULL);
1267
1268         /* remove counter also */
1269         table_counters_delete(lookup_value->restriction_id);
1270
1271         if (!g_tree_remove(g_system->rstns, key)) {
1272                 STC_LOGD("key not found");
1273                 return STC_ERROR_NO_DATA;
1274         }
1275
1276         return STC_ERROR_NONE;
1277 }
1278
1279 static stc_error_e __rstn_tree_add(stc_rstn_key_s *key,
1280                                    stc_rstn_value_s *value, gboolean debug)
1281 {
1282         stc_rstn_value_s *rstn_value;
1283
1284         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1285
1286         rstn_value = __rstn_lookup(g_system->rstns, key);
1287         if (!rstn_value) {
1288                 stc_rstn_key_s *rstn_key = MALLOC0(stc_rstn_key_s, 1);
1289                 if (!rstn_key) {
1290                         STC_LOGE("rstn_key allocation failed");
1291                         return STC_ERROR_OUT_OF_MEMORY;
1292                 }
1293
1294                 rstn_value = MALLOC0(stc_rstn_value_s, 1);
1295                 if (!rstn_value) {
1296                         STC_LOGE("rstn_value allocation failed");
1297                         FREE(rstn_key);
1298                         return STC_ERROR_OUT_OF_MEMORY;
1299                 }
1300
1301                 rstn_key->app_id = g_strdup(key->app_id);
1302                 rstn_key->ifname = g_strdup(key->ifname);
1303                 rstn_key->subscriber_id = g_strdup(key->subscriber_id);
1304                 rstn_key->iftype = key->iftype;
1305                 rstn_key->roaming = key->roaming;
1306
1307                 g_tree_insert(g_system->rstns, rstn_key, rstn_value);
1308         }
1309
1310         rstn_value->restriction_id = value->restriction_id;
1311         rstn_value->rst_state = value->rst_state;
1312         rstn_value->classid = value->classid;
1313         rstn_value->data_limit = value->data_limit;
1314         rstn_value->data_warn_limit = value->data_warn_limit;
1315         rstn_value->data_counter = 0;
1316         rstn_value->warn_limit_crossed_notified = FALSE;
1317         rstn_value->rstn_limit_crossed_notified = FALSE;
1318
1319         if (debug == TRUE)
1320                 __add_restriction_debug(key, rstn_value, NULL);
1321         else
1322                 __add_restriction(key, rstn_value, NULL);
1323
1324         return STC_ERROR_NONE;
1325 }
1326
1327 static stc_cb_ret_e __insert_restriction_cb(const table_restrictions_info *info,
1328                                             void *user_data)
1329 {
1330         stc_cb_ret_e ret = STC_CONTINUE;
1331
1332         stc_rstn_key_s key;
1333         stc_rstn_value_s value;
1334
1335         memset(&key, 0, sizeof(stc_rstn_key_s));
1336         memset(&value, 0, sizeof(stc_rstn_value_s));
1337
1338         key.app_id = g_strdup(info->app_id);
1339         key.ifname = g_strdup(info->ifname);
1340         key.subscriber_id = g_strdup(info->subscriber_id);
1341         key.iftype = info->iftype;
1342         key.roaming = info->roaming;
1343
1344         value.rst_state = info->rst_state;
1345         value.restriction_id = info->restriction_id;
1346
1347         if (value.rst_state != STC_RESTRICTION_EXCLUDED && info->app_id)
1348                 value.classid = get_classid_by_app_id(info->app_id, TRUE);
1349         else
1350                 value.classid = STC_UNKNOWN_CLASSID;
1351
1352         value.data_limit = info->data_limit;
1353         value.data_warn_limit = info->data_warn_limit;
1354
1355         if (__rstn_tree_add(&key, &value, FALSE) != STC_ERROR_NONE)
1356                 ret = STC_CANCEL;
1357
1358         FREE(key.app_id);
1359         FREE(key.ifname);
1360         FREE(key.subscriber_id);
1361         return ret;
1362 }
1363
1364 static void __fill_restritions_list(void)
1365 {
1366         table_restrictions_foreach(__insert_restriction_cb, NULL);
1367         //__rstn_tree_printall();
1368 }
1369
1370 static gboolean __add_rstn_foreach_application(gpointer key,
1371                                                gpointer value,
1372                                                gpointer data)
1373 {
1374         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1375         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1376         gchar *app_id = (gchar *)data;
1377
1378         /* rstn rule is not for applications */
1379         if (rstn_key->app_id == NULL)
1380                 goto out;
1381
1382         /* rstn rule is not for this application */
1383         if (g_strcmp0(rstn_key->app_id, app_id) != 0)
1384                 goto out;
1385
1386         /* rstn rule is already applied */
1387         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1388                 goto out;
1389
1390         /* add restriction to system */
1391         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1392                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1393         else
1394                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1395
1396         __print_rstn(rstn_key, rstn_value);
1397 out:
1398         return FALSE;
1399 }
1400
1401 static void __add_rstns_for_application(gchar *app_id)
1402 {
1403         g_tree_foreach(g_system->rstns, __add_rstn_foreach_application,
1404                        app_id);
1405 }
1406
1407 static void __add_application_by_interface(const char *app_id)
1408 {
1409         stc_app_key_s app_key;
1410         stc_app_value_s app_value;
1411
1412         if (app_id == NULL)
1413                 return;
1414
1415         memset(&app_key, 0, sizeof(stc_app_key_s));
1416         memset(&app_value, 0, sizeof(stc_app_value_s));
1417
1418         app_key.pkg_id = g_strdup(app_id);
1419         app_key.app_id = g_strdup(app_id);
1420
1421         app_value.type = STC_APP_TYPE_NONE;
1422         app_value.processes = NULL;
1423         app_value.counter.in_bytes = 0;
1424         app_value.counter.out_bytes = 0;
1425
1426         stc_monitor_application_add(app_key, app_value);
1427
1428         FREE(app_key.pkg_id);
1429         FREE(app_key.app_id);
1430 }
1431
1432 static int __vconf_get_int(const char *key, int *value)
1433 {
1434         int ret = 0;
1435
1436         ret = vconf_get_int(key, value);
1437         if (ret != VCONF_OK) {
1438                 STC_LOGE("Failed to get vconfkey [%s] value", key);
1439                 return -1;
1440         }
1441
1442         return 0;
1443 }
1444
1445 static int __vconf_set_int(const char *key, int value)
1446 {
1447         int ret = 0;
1448
1449         ret = vconf_set_int(key, value);
1450         if (ret != VCONF_OK) {
1451                 STC_LOGE("Failed to set vconfkey [%s] value", key);
1452                 return -1;
1453         }
1454
1455         return 0;
1456 }
1457
1458 static guint __get_background_state(void)
1459 {
1460         return g_system->background_state;;
1461 }
1462
1463 static void __set_background_state(guint state)
1464 {
1465         g_system->background_state = state;
1466 }
1467
1468 static gboolean __processes_tree_foreach_background(gpointer key,
1469                                                     gpointer value,
1470                                                     gpointer data)
1471 {
1472         stc_process_key_s *proc_key = (stc_process_key_s *)key;
1473         stc_app_key_s *app_key = (stc_app_key_s *)data;
1474
1475         if (g_system->background_state)
1476                 place_pids_to_net_cgroup(proc_key->pid, STC_BACKGROUND_APP_ID);
1477         else
1478                 place_pids_to_net_cgroup(proc_key->pid, app_key->app_id);
1479
1480         return FALSE;
1481 }
1482
1483 static gboolean __apps_tree_foreach_background(gpointer key, gpointer value,
1484                                         gpointer data)
1485 {
1486         stc_app_key_s *app_key = (stc_app_key_s *)key;
1487         stc_app_value_s *app_value = (stc_app_value_s *)value;
1488
1489         if (strstr(app_key->app_id, STC_BACKGROUND_APP_SUFFIX))
1490                 g_tree_foreach(app_value->processes,
1491                                __processes_tree_foreach_background, app_key);
1492
1493         return FALSE;
1494 }
1495
1496 static stc_error_e __process_update_background(void)
1497 {
1498         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1499
1500         g_tree_foreach(g_system->apps, __apps_tree_foreach_background, NULL);
1501
1502         return STC_ERROR_NONE;
1503 }
1504
1505 #if 0
1506 static void __excn_hash_foreach_print(gpointer key, gpointer value,
1507                                           gpointer data)
1508 {
1509         const char *process_name = key;
1510         const char *exe_type = value;
1511
1512         STC_LOGI("excn info => process_name [%s] exe_type [%s]",
1513                 process_name, exe_type);
1514 }
1515
1516 static void __excn_hash_printall(void)
1517 {
1518         g_hash_table_foreach(g_system->excns_hash,
1519                 __excn_hash_foreach_print, NULL);
1520 }
1521 #endif
1522
1523 static gboolean __remove_exception_app(gpointer key, gpointer value,
1524                                         gpointer data)
1525 {
1526         const char *exe_type = value;
1527
1528         if (g_strcmp0(exe_type, EXE_TYPE_APPLICATION) == 0)
1529                 return TRUE;
1530
1531         return FALSE;
1532 }
1533
1534 static void __remove_exception_appall(void)
1535 {
1536         g_hash_table_foreach_remove(g_system->excns_hash,
1537                 __remove_exception_app, NULL);
1538 }
1539
1540 static stc_cb_ret_e __insert_exception_cb(const stc_exceptions_info *info,
1541                                             void *user_data)
1542 {
1543         stc_cb_ret_e ret = STC_CONTINUE;
1544
1545         if (g_hash_table_insert(g_system->excns_hash,
1546                         g_strdup(info->process_name),
1547                         g_strdup(info->exe_type)) != TRUE)
1548                 ret = STC_CANCEL;
1549
1550         return ret;
1551 }
1552
1553 static void __fill_exceptions_list(void)
1554 {
1555         table_exceptions_foreach(__insert_exception_cb, NULL);
1556         pkginfo_exceptions_foreach(__insert_exception_cb, NULL);
1557
1558         /* __excn_hash_printall(); */
1559 }
1560
1561 static gboolean __update_exceptions_app_list(void *user_data)
1562 {
1563         __remove_exception_appall();
1564         pkginfo_exceptions_foreach(__insert_exception_cb, NULL);
1565
1566         /* __excn_hash_printall(); */
1567
1568         return TRUE;
1569 }
1570
1571 stc_error_e stc_monitor_init(void)
1572 {
1573         stc_system_s *system = MALLOC0(stc_system_s, 1);
1574         GIOChannel *gio = NULL;
1575
1576         ret_value_msg_if(system == NULL, STC_ERROR_OUT_OF_MEMORY, "stc_system_s malloc fail!");
1577
1578         /* initializing current classid */
1579         init_current_classid();
1580
1581         /* initializing cgroups */
1582         cgroup_init();
1583
1584         /* creating monitored application tree */
1585         system->apps = g_tree_new_full(__apps_tree_key_compare, NULL,
1586                                        __apps_tree_key_free,
1587                                        __apps_tree_value_free);
1588
1589         system->rstns = g_tree_new_full(__rstns_tree_key_compare, NULL,
1590                                         __rstns_tree_key_free,
1591                                         __rstns_tree_value_free);
1592
1593         system->excns_hash = g_hash_table_new_full(g_str_hash,
1594                                         g_str_equal, g_free, g_free);
1595
1596         /* create netlink socket for updating kernel counters */
1597         system->contr_sock = create_netlink(NETLINK_NETFILTER, 0);
1598         if (system->contr_sock < 0) {
1599                 STC_LOGE("failed to open socket");
1600                 FREE(system);
1601                 return STC_ERROR_FAIL;
1602         }
1603
1604         gio = g_io_channel_unix_new(system->contr_sock);
1605         system->contr_gsource_id =
1606                 g_io_add_watch(gio, G_IO_IN | G_IO_ERR | G_IO_HUP,
1607                                (GIOFunc) __process_contr_reply,
1608                                NULL);
1609         g_io_channel_unref(gio);
1610
1611         g_system = system;
1612
1613         __add_application_by_interface(STC_TOTAL_DATACALL);
1614         __add_application_by_interface(STC_TOTAL_WIFI);
1615         __add_application_by_interface(STC_TOTAL_BLUETOOTH);
1616         __add_application_by_interface(STC_TOTAL_IPV4);
1617         __add_application_by_interface(STC_TOTAL_IPV6);
1618
1619         /* creating restriction rules tree */
1620         __update_contr_cb(NULL);
1621
1622         /* registering periodic kernel counters update callback */
1623         g_system->contr_timer_id = g_timeout_add_seconds(CONTR_TIMER_INTERVAL,
1624                                                          __update_contr_cb,
1625                                                          NULL);
1626         if (g_system->contr_timer_id == 0) {
1627                 STC_LOGE("Failed to register kernel counters update timer");
1628                 __close_contr_sock(g_system);
1629                 return STC_ERROR_FAIL;
1630         }
1631
1632         __vconf_get_int(VCONFKEY_STC_BACKGROUND_STATE,
1633                         (int *)&g_system->background_state);
1634
1635         __fill_exceptions_list();
1636         __fill_restritions_list();
1637
1638         g_system->excns_timer_id = g_timeout_add_seconds(EXCNS_TIMER_INTERVAL,
1639                                                          __update_exceptions_app_list,
1640                                                          NULL);
1641
1642         return STC_ERROR_NONE;
1643 }
1644
1645 stc_error_e stc_monitor_deinit(void)
1646 {
1647         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1648
1649         /* close netlink socket for updating kernel counters */
1650         __close_contr_sock(g_system);
1651
1652         /* remove kernel counters update timer */
1653         if (g_system->contr_timer_id > 0) {
1654                 g_source_remove(g_system->contr_timer_id);
1655                 g_system->contr_timer_id = 0;
1656         }
1657
1658         /* remove exceptions app list update timer */
1659         if (g_system->excns_timer_id > 0) {
1660                 g_source_remove(g_system->excns_timer_id);
1661                 g_system->excns_timer_id = 0;
1662         }
1663
1664         /* destroy monitored application tree */
1665         g_tree_destroy(g_system->apps);
1666         g_system->apps = NULL;
1667
1668         /* destroy restriction rules tree */
1669         g_tree_destroy(g_system->rstns);
1670         g_system->rstns = NULL;
1671
1672         /* destroy exception hash table */
1673         g_hash_table_destroy(g_system->excns_hash);
1674         g_system->excns_hash = NULL;
1675
1676         FREE(g_system);
1677
1678         return STC_ERROR_NONE;
1679 }
1680
1681 stc_error_e stc_monitor_application_add(const stc_app_key_s app_key,
1682                                         const stc_app_value_s app_value)
1683 {
1684         stc_error_e ret = STC_ERROR_NONE;
1685         stc_app_key_s *key;
1686         stc_app_value_s *value;
1687         stc_app_value_s *lookup;
1688
1689         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1690
1691         lookup = __application_lookup(g_system->apps, &app_key);
1692         if (lookup) {
1693                 STC_LOGD("app_key already present");
1694                 return STC_ERROR_NONE;
1695         }
1696
1697         key = MALLOC0(stc_app_key_s, 1);
1698         if (!key) {
1699                 STC_LOGE("key allocation failed");
1700                 return STC_ERROR_OUT_OF_MEMORY;
1701         }
1702
1703         value = MALLOC0(stc_app_value_s, 1);
1704         if (!value) {
1705                 STC_LOGE("value allocation failed");
1706                 FREE(key);
1707                 return STC_ERROR_OUT_OF_MEMORY;
1708         }
1709
1710         key->app_id = g_strdup(app_key.app_id);
1711         key->pkg_id = g_strdup(app_key.pkg_id);
1712
1713         value->type = app_value.type;
1714         value->data_usage.in_bytes = app_value.data_usage.in_bytes;
1715         value->data_usage.out_bytes = app_value.data_usage.out_bytes;
1716
1717         value->processes = g_tree_new_full(__processes_tree_key_compare, NULL,
1718                                            __processes_tree_key_free,
1719                                            __processes_tree_value_free);
1720
1721         /* create cgroup and update classid */
1722         value->classid = get_classid_by_app_id(app_key.app_id, TRUE);
1723
1724         g_tree_insert(g_system->apps, key, value);
1725
1726         /* add nfacct rule for this classid */
1727         __add_application_monitor(key, value, stc_get_default_connection());
1728         __add_rstns_for_application(app_key.app_id);
1729
1730         return ret;
1731 }
1732
1733 stc_error_e stc_monitor_process_add(const stc_app_key_s app_key,
1734                                     const stc_process_key_s proc_key,
1735                                     const stc_process_value_s proc_value)
1736 {
1737         stc_error_e ret = STC_ERROR_NONE;
1738         stc_app_value_s *app_lookup;
1739         stc_process_key_s *key;
1740         stc_process_value_s *value;
1741         stc_process_value_s *proc_lookup;
1742
1743         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1744
1745         app_lookup = __application_lookup(g_system->apps, &app_key);
1746         if (!app_lookup) {
1747                 STC_LOGD("app_key not found");
1748                 return STC_ERROR_FAIL;
1749         }
1750
1751         proc_lookup = __process_lookup(app_lookup->processes, &proc_key);
1752         if (proc_lookup) {
1753                 STC_LOGD("proc_key already present");
1754                 return STC_ERROR_NONE;
1755         }
1756
1757         key = MALLOC0(stc_process_key_s, 1);
1758         if (!key) {
1759                 STC_LOGE("key allocation failed");
1760                 return STC_ERROR_OUT_OF_MEMORY;
1761         }
1762
1763         value = MALLOC0(stc_process_value_s, 1);
1764         if (!value) {
1765                 STC_LOGE("value allocation failed");
1766                 FREE(key);
1767                 return STC_ERROR_OUT_OF_MEMORY;
1768         }
1769
1770         key->pid = proc_key.pid;
1771
1772         value->ground = proc_value.ground;
1773
1774         g_tree_insert(app_lookup->processes, key, value);
1775
1776         /* add pid to application cgroup */
1777         place_pids_to_net_cgroup(proc_key.pid, app_key.app_id);
1778
1779         if (STC_DEBUG_LOG)
1780                 __apps_tree_printall();
1781
1782         return ret;
1783 }
1784
1785 stc_error_e stc_monitor_process_remove(pid_t pid)
1786 {
1787         stc_error_e ret = STC_ERROR_NONE;
1788         stc_process_key_s proc_key = {
1789                 .pid = pid
1790         };
1791
1792         remove_pid_context_s context = {
1793                 .app_key = NULL,
1794                 .proc_key = &proc_key,
1795                 .entry_removed = FALSE,
1796         };
1797
1798         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1799
1800         g_tree_foreach(g_system->apps, __apps_tree_foreach_remove_pid,
1801                        &context);
1802
1803         if (context.entry_removed)
1804                 __application_remove_if_empty(context.app_key);
1805
1806         if (STC_DEBUG_LOG)
1807                 __apps_tree_printall();
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 }