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-monitor.h"
  30 #include "stc-manager-plugin.h"
  31
  32 #define MAX_INT_LENGTH 128
  33 #define VCONFKEY_STC_BACKGROUND_STATE "db/stc/background_state"
  34
  35 typedef struct {
  36         stc_app_key_s *app_key;
  37         stc_process_key_s *proc_key;
  38         gboolean entry_removed;
  39 } remove_pid_context_s;
  40
  41 typedef struct {
  42         struct nfacct_rule *counter;
  43         int64_t bytes;
  44         gboolean data_limit_reached;
  45 } classid_bytes_context_s;
  46
  47 static stc_system_s *g_system = NULL;
  48
  49 static nfacct_rule_jump __get_jump_by_intend(struct nfacct_rule *counter)
  50 {
  51         if (counter->intend == NFACCT_WARN)
  52                 return NFACCT_JUMP_ACCEPT;
  53         else if (counter->intend == NFACCT_BLOCK)
  54                 return NFACCT_JUMP_REJECT;
  55
  56         return NFACCT_JUMP_UNKNOWN;
  57 }
  58
  59 static stc_error_e __add_iptables_in(struct nfacct_rule *counter)
  60 {
  61         if (counter == NULL)
  62                 return STC_ERROR_INVALID_PARAMETER;
  63
  64         counter->action = NFACCT_ACTION_INSERT;
  65         counter->iotype = NFACCT_COUNTER_IN;
  66         counter->jump = __get_jump_by_intend(counter);
  67         counter->iptype = NFACCT_TYPE_IPV4;
  68         counter->send_limit = 0;
  69         counter->rcv_limit = 0;
  70
  71         return produce_net_rule(counter);
  72 }
  73
  74 static stc_error_e __add_iptables_out(struct nfacct_rule *counter)
  75 {
  76         if (counter == NULL)
  77                 return STC_ERROR_INVALID_PARAMETER;
  78
  79         counter->action = NFACCT_ACTION_INSERT;
  80         counter->iotype = NFACCT_COUNTER_OUT;
  81         counter->jump = __get_jump_by_intend(counter);
  82         counter->iptype = NFACCT_TYPE_IPV4;
  83         counter->send_limit = 0;
  84         counter->rcv_limit = 0;
  85
  86         return produce_net_rule(counter);
  87 }
  88
  89 static stc_error_e __del_iptables_in(struct nfacct_rule *counter)
  90 {
  91         if (counter == NULL)
  92                 return STC_ERROR_INVALID_PARAMETER;
  93
  94         counter->action = NFACCT_ACTION_DELETE;
  95         counter->iotype = NFACCT_COUNTER_IN;
  96         counter->jump = __get_jump_by_intend(counter);
  97         counter->iptype = NFACCT_TYPE_IPV4;
  98         counter->send_limit = 0;
  99         counter->rcv_limit = 0;
 100
 101         return produce_net_rule(counter);
 102 }
 103
 104 static stc_error_e __del_iptables_out(struct nfacct_rule *counter)
 105 {
 106         if (counter == NULL)
 107                 return STC_ERROR_INVALID_PARAMETER;
 108
 109         counter->action = NFACCT_ACTION_DELETE;
 110         counter->iotype = NFACCT_COUNTER_OUT;
 111         counter->jump = __get_jump_by_intend(counter);
 112         counter->iptype = NFACCT_TYPE_IPV4;
 113         counter->send_limit = 0;
 114         counter->rcv_limit = 0;
 115
 116         return produce_net_rule(counter);
 117 }
 118
 119 static stc_error_e __add_ip6tables_in(struct nfacct_rule *counter)
 120 {
 121         if (counter == NULL)
 122                 return STC_ERROR_INVALID_PARAMETER;
 123
 124         counter->action = NFACCT_ACTION_INSERT;
 125         counter->iotype = NFACCT_COUNTER_IN;
 126         counter->jump = __get_jump_by_intend(counter);
 127         counter->iptype = NFACCT_TYPE_IPV6;
 128         counter->send_limit = 0;
 129         counter->rcv_limit = 0;
 130
 131         return produce_net_rule(counter);
 132 }
 133
 134 static stc_error_e __add_ip6tables_out(struct nfacct_rule *counter)
 135 {
 136         if (counter == NULL)
 137                 return STC_ERROR_INVALID_PARAMETER;
 138
 139         counter->action = NFACCT_ACTION_INSERT;
 140         counter->iotype = NFACCT_COUNTER_OUT;
 141         counter->jump = __get_jump_by_intend(counter);
 142         counter->iptype = NFACCT_TYPE_IPV6;
 143         counter->send_limit = 0;
 144         counter->rcv_limit = 0;
 145
 146         return produce_net_rule(counter);
 147 }
 148
 149 static stc_error_e __del_ip6tables_in(struct nfacct_rule *counter)
 150 {
 151         if (counter == NULL)
 152                 return STC_ERROR_INVALID_PARAMETER;
 153
 154         counter->action = NFACCT_ACTION_DELETE;
 155         counter->iotype = NFACCT_COUNTER_IN;
 156         counter->jump = __get_jump_by_intend(counter);
 157         counter->iptype = NFACCT_TYPE_IPV6;
 158         counter->send_limit = 0;
 159         counter->rcv_limit = 0;
 160
 161         return produce_net_rule(counter);
 162 }
 163
 164 static stc_error_e __del_ip6tables_out(struct nfacct_rule *counter)
 165 {
 166         if (counter == NULL)
 167                 return STC_ERROR_INVALID_PARAMETER;
 168
 169         counter->action = NFACCT_ACTION_DELETE;
 170         counter->iotype = NFACCT_COUNTER_OUT;
 171         counter->jump = __get_jump_by_intend(counter);
 172         counter->iptype = NFACCT_TYPE_IPV6;
 173         counter->send_limit = 0;
 174         counter->rcv_limit = 0;
 175
 176         return produce_net_rule(counter);
 177 }
 178
 179 static int __processes_tree_key_compare(gconstpointer a, gconstpointer b,
 180                                         gpointer UNUSED user_data)
 181 {
 182         stc_process_key_s *key_a = (stc_process_key_s *)a;
 183         stc_process_key_s *key_b = (stc_process_key_s *)b;
 184
 185         return key_a->pid - key_b->pid;
 186 }
 187
 188 static void __processes_tree_value_free(gpointer data)
 189 {
 190         stc_process_value_s *value = (stc_process_value_s *)data;
 191
 192         FREE(value);
 193 }
 194
 195 static void __processes_tree_key_free(gpointer data)
 196 {
 197         stc_process_key_s *key = (stc_process_key_s *)data;
 198
 199         FREE(key);
 200 }
 201
 202 static int __apps_tree_key_compare(gconstpointer a, gconstpointer b,
 203                                    gpointer UNUSED user_data)
 204 {
 205         stc_app_key_s *key_a = (stc_app_key_s *)a;
 206         stc_app_key_s *key_b = (stc_app_key_s *)b;
 207         gint ret;
 208
 209         ret = g_strcmp0(key_a->pkg_id, key_b->pkg_id);
 210         if (ret)
 211                 return ret;
 212
 213         return g_strcmp0(key_a->app_id, key_b->app_id);
 214 }
 215
 216 static void __apps_tree_value_free(gpointer data)
 217 {
 218         stc_app_value_s *value = (stc_app_value_s *)data;
 219
 220         g_tree_destroy(value->processes);
 221         value->processes = NULL;
 222
 223         FREE(value);
 224 }
 225
 226 static void __apps_tree_key_free(gpointer data)
 227 {
 228         stc_app_key_s *key = (stc_app_key_s *)data;
 229
 230         g_free(key->pkg_id);
 231         g_free(key->app_id);
 232         FREE(key);
 233 }
 234
 235 static int __rstns_tree_key_compare(gconstpointer a, gconstpointer b,
 236                                     gpointer UNUSED user_data)
 237 {
 238         stc_rstn_key_s *key_a = (stc_rstn_key_s *)a;
 239         stc_rstn_key_s *key_b = (stc_rstn_key_s *)b;
 240         int ret;
 241
 242         ret = g_strcmp0(key_a->app_id, key_b->app_id);
 243         if (ret != 0)
 244                 return ret;
 245
 246         ret = g_strcmp0(key_a->ifname, key_b->ifname);
 247         if (ret != 0)
 248                 return ret;
 249
 250         ret = g_strcmp0(key_a->imsi, key_b->imsi);
 251         if (ret != 0)
 252                 return ret;
 253
 254         ret = key_a->iftype - key_b->iftype;
 255         if (ret != 0)
 256                 return ret;
 257
 258         return 0;
 259 }
 260
 261 static void __rstns_tree_value_free(gpointer data)
 262 {
 263         stc_rstn_value_s *value = (stc_rstn_value_s *)data;
 264
 265         FREE(value);
 266 }
 267
 268 static void __rstns_tree_key_free(gpointer data)
 269 {
 270         stc_rstn_key_s *key = (stc_rstn_key_s *)data;
 271
 272         FREE(key->app_id);
 273         FREE(key->ifname);
 274         FREE(key->imsi);
 275         FREE(key);
 276 }
 277
 278 static gboolean __processes_tree_foreach_print(gpointer key, gpointer value,
 279                                                gpointer data)
 280 {
 281         stc_process_key_s *proc_key = (stc_process_key_s *)key;
 282         stc_process_value_s *proc_value = (stc_process_value_s *)value;
 283
 284         STC_LOGD("Process entry => PID [%d], Ground state [%d]",
 285                  proc_key->pid, proc_value->ground);
 286         return FALSE;
 287 }
 288
 289 static void __processes_tree_printall(GTree *processes)
 290 {
 291         g_tree_foreach(processes, __processes_tree_foreach_print, NULL);
 292 }
 293
 294 static gboolean __apps_tree_foreach_print(gpointer key, gpointer value,
 295                                           gpointer data)
 296 {
 297         stc_app_key_s *app_key = (stc_app_key_s *)key;
 298         stc_app_value_s *app_value = (stc_app_value_s *)value;
 299
 300         STC_LOGD("Application info => Pkg ID [%s], App ID [%s],"
 301                  " Type [%d], classid [%d],"
 302                  " counter [ in (%lld), out (%lld)]",
 303                  app_key->pkg_id, app_key->app_id,
 304                  app_value->type, app_value->classid,
 305                  app_value->data_usage.in_bytes, app_value->data_usage.out_bytes);
 306
 307         __processes_tree_printall(app_value->processes);
 308         return FALSE;
 309 }
 310
 311 #if 0
 312 static void __apps_tree_printall(void)
 313 {
 314         g_tree_foreach(g_system->apps, __apps_tree_foreach_print, NULL);
 315 }
 316 #endif
 317
 318 static gboolean __apps_tree_foreach_remove_pid(gpointer key, gpointer value,
 319                                                gpointer data)
 320 {
 321         remove_pid_context_s *context = (remove_pid_context_s *)data;
 322         stc_app_value_s *app_value = (stc_app_value_s *)value;
 323
 324         if (!g_tree_remove(app_value->processes, context->proc_key)) {
 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], imsi [%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->imsi);
 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)) {
 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.imsi = g_strdup(default_connection->imsi);
 883         else
 884                 stat_key.imsi = g_strdup("noneimsi");
 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.imsi);
 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                 __apps_tree_foreach_print(app_key, app_value, NULL);
 967                 break;
 968         case NFACCT_COUNTER_OUT:
 969                 app_value->data_usage.out_bytes += context->bytes;
 970                 app_value->counter.out_bytes = context->bytes;
 971                 g_system->apps_tree_updated = TRUE;
 972
 973                 __apps_tree_foreach_print(app_key, app_value, NULL);
 974                 break;
 975         default:
 976                 STC_LOGE("unknown iotype");
 977         }
 978 }
 979
 980 static void __interface_counter_update(stc_app_key_s *app_key,
 981                                        stc_app_value_s *app_value,
 982                                        classid_bytes_context_s *context)
 983 {
 984         if ((app_value->classid == STC_TOTAL_DATACALL_CLASSID &&
 985              context->counter->iftype == STC_IFACE_DATACALL) ||
 986             (app_value->classid == STC_TOTAL_WIFI_CLASSID &&
 987              context->counter->iftype == STC_IFACE_WIFI) ||
 988             (app_value->classid == STC_TOTAL_BLUETOOTH_CLASSID &&
 989              context->counter->iftype == STC_IFACE_BLUETOOTH))
 990                 __app_counter_update(app_key, app_value, context);
 991 }
 992
 993
 994 static gboolean __apps_counter_update_foreach_classid(gpointer key,
 995                                                       gpointer value,
 996                                                       gpointer data)
 997 {
 998         stc_app_key_s *app_key = (stc_app_key_s *)key;
 999         stc_app_value_s *app_value = (stc_app_value_s *)value;
1000         classid_bytes_context_s *context = (classid_bytes_context_s *)data;
1001
1002         if (context->counter->intend != NFACCT_COUNTER)
1003                 goto try_next_callback;
1004
1005         __interface_counter_update(app_key, app_value, context);
1006
1007         if (app_value->classid != context->counter->classid)
1008                 goto try_next_callback;
1009
1010         __app_counter_update(app_key, app_value, context);
1011
1012 try_next_callback:
1013         return FALSE;
1014 }
1015
1016 static void __fill_nfacct_result(char *cnt_name, int64_t bytes,
1017                                  struct counter_arg *carg)
1018 {
1019         struct nfacct_rule counter = {
1020                 .carg = carg,
1021                 .name = {0},
1022                 .ifname = {0},
1023                 0
1024         };
1025
1026         classid_bytes_context_s context = {
1027                 .counter = &counter,
1028                 .bytes = bytes,
1029                 .data_limit_reached = FALSE,
1030         };
1031
1032         STC_LOGD("cnt_name %s", cnt_name);
1033
1034         if (!recreate_counter_by_name(cnt_name, &counter)) {
1035                 STC_LOGE("Can't parse counter name %s", cnt_name);
1036                 return;
1037         }
1038
1039         STC_LOGI("classid %lu, iftype %u, iotype %d, intend %d, ifname %s, bytes %lld",
1040                  context.counter->classid, context.counter->iftype,
1041                  context.counter->iotype, context.counter->intend,
1042                  context.counter->ifname, context.bytes);
1043
1044         if (g_system->rstns)
1045                 g_tree_foreach(g_system->rstns,
1046                                __rstn_counter_update_foreach_classid,
1047                                &context);
1048
1049         if (g_system->apps)
1050                 g_tree_foreach(g_system->apps,
1051                                __apps_counter_update_foreach_classid,
1052                                &context);
1053 }
1054
1055 static int __fill_counters(struct rtattr *attr_list[__NFACCT_MAX],
1056                            void *user_data)
1057 {
1058         struct counter_arg *carg = user_data;
1059         char *cnt_name = (char *)RTA_DATA(attr_list[NFACCT_NAME]);
1060         if (carg->initiate) {
1061                 /**
1062                  * TODO: this will be used when daemon starts to update existing
1063                  * counter data if present.
1064                  *
1065                  populate_counters(cnt_name, carg);
1066                  */
1067         } else {
1068                 int64_t *bytes_p =
1069                         (int64_t *)RTA_DATA(attr_list[NFACCT_BYTES]);
1070                 int bytes = be64toh(*bytes_p);
1071                 if (bytes) {
1072                         ++carg->serialized_counters;
1073                         __fill_nfacct_result(cnt_name, bytes, carg);
1074                 }
1075         }
1076
1077         return 0;
1078 }
1079
1080 static int __post_fill_counters(void *user_data)
1081 {
1082         struct counter_arg *carg = user_data;
1083
1084         if (carg->initiate)
1085                 carg->initiate = 0;
1086
1087         return 0;
1088 }
1089
1090 static void __process_network_counter(struct genl *ans,
1091                                       struct counter_arg *carg)
1092 {
1093         struct netlink_serialization_params ser_params = {
1094                 .carg = carg,
1095                 .ans = ans,
1096                 .eval_attr = __fill_counters,
1097                 .post_eval_attr = __post_fill_counters,
1098         };
1099
1100         netlink_serialization_command *netlink =
1101                 netlink_create_command(&ser_params);
1102         if (!netlink) {
1103                 STC_LOGE("Can not create command");
1104                 return;
1105         }
1106
1107         netlink->deserialize_answer(&(netlink->params));
1108 }
1109
1110 static gboolean __process_contr_reply(GIOChannel *source,
1111                                       GIOCondition condition,
1112                                       gpointer user_data)
1113 {
1114         int sock = g_io_channel_unix_get_fd(source);
1115         struct genl ans;
1116         int ret;
1117         stc_s *stc = stc_get_manager();
1118
1119         if ((condition & G_IO_ERR) ||
1120             (condition & G_IO_HUP) ||
1121             (condition & G_IO_NVAL)) {
1122                 /* G_IO_ERR/G_IO_HUP/G_IO_NVAL received */
1123
1124                 STC_LOGE("Counter socket received G_IO event, closing socket."
1125                          "G_IO_ERR [%d], G_IO_HUP [%d], G_IO_NVAL [%s]",
1126                          (condition & G_IO_ERR), (condition & G_IO_HUP),
1127                          (condition & G_IO_NVAL));
1128                 __close_and_reopen_contr_sock(g_system);
1129                 return FALSE;
1130         }
1131
1132         if (stc == NULL) {
1133                 STC_LOGE("Can't get stc data");
1134                 goto out;
1135         }
1136
1137         ret = read_netlink(sock,
1138                            &ans, sizeof(struct genl));
1139         /* STC_LOGD("Counter data received ret [%d]", ret); */
1140         if (ret == 0)
1141                 goto out;
1142
1143         stc->carg->ans_len = ret;
1144         __process_network_counter(&ans, stc->carg);
1145
1146         g_idle_add(__flush_apps_stats_to_database, NULL);
1147         g_idle_add(__flush_rstns_counter_to_database, NULL);
1148 out:
1149         return TRUE;
1150 }
1151
1152 static gboolean __update_contr_cb(void *user_data)
1153 {
1154         /* Here we just sent command, answer we receive in another callback */
1155         stc_s *stc = stc_get_manager();
1156         ret_value_msg_if(stc == NULL, STC_ERROR_FAIL, "Can't get stc data");
1157         if (!stc->carg) {
1158                 stc->carg = MALLOC0(counter_arg_s, 1);
1159                 if (stc->carg == NULL)
1160                         return TRUE;  /* we need to continue the timer */
1161
1162                 stc->carg->sock = stc_monitor_get_counter_socket();
1163         }
1164
1165         /* STC_LOGD("Get all counters"); */
1166         nfacct_send_get_all(stc->carg);
1167
1168         /* we need to continue the timer */
1169         return TRUE;
1170 }
1171 #if 0
1172 static gboolean __rstn_tree_foreach_print(gpointer key, gpointer value,
1173                                           gpointer data)
1174 {
1175         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1176         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1177
1178         __print_rstn(rstn_key, rstn_value);
1179         return FALSE;
1180 }
1181
1182 static void __rstn_tree_printall(void)
1183 {
1184         g_tree_foreach(g_system->rstns, __rstn_tree_foreach_print, NULL);
1185 }
1186 #endif
1187 static stc_rstn_value_s * __rstn_lookup(GTree *rstns_tree,
1188                                         const stc_rstn_key_s *key)
1189 {
1190         stc_rstn_value_s *lookup;
1191
1192         ret_value_msg_if(rstns_tree == NULL, NULL, "rstns_tree is null!");
1193
1194         lookup = g_tree_lookup(rstns_tree, key);
1195
1196         return lookup;
1197 }
1198
1199 static gboolean __remove_restriction(gpointer key, gpointer value,
1200                                      gpointer data)
1201 {
1202         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1203         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1204
1205         /* rstn rule is already removed */
1206         if (rstn_value->rst_state == STC_RESTRICTION_REMOVED)
1207                 return FALSE;
1208
1209         __process_restriction(RST_UNSET, rstn_key, rstn_value, data);
1210         __print_rstn(rstn_key, rstn_value);
1211         return FALSE;
1212 }
1213
1214 static gboolean __add_restriction_debug(gpointer key, gpointer value,
1215                                         gpointer data)
1216 {
1217         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1218         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1219
1220         /* rstn rule is activated */
1221         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1222                 return FALSE;
1223
1224         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1225                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1226         else
1227                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1228
1229         __print_rstn(rstn_key, rstn_value);
1230
1231         return FALSE;
1232 }
1233
1234 static gboolean __add_restriction(gpointer key, gpointer value, gpointer data)
1235 {
1236         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1237         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1238
1239         /* rstn rule is activated */
1240         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1241                 return FALSE;
1242
1243         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1244                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1245         else
1246                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1247
1248         return FALSE;
1249 }
1250
1251 static stc_error_e __rstn_tree_remove(stc_rstn_key_s *key)
1252 {
1253         stc_rstn_value_s *lookup_value;
1254
1255         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1256
1257         lookup_value = __rstn_lookup(g_system->rstns, key);
1258         if (!lookup_value) {
1259                 STC_LOGE("key not found");
1260                 return STC_ERROR_NO_DATA;
1261         }
1262
1263         __remove_restriction(key, lookup_value, NULL);
1264
1265         /* remove counter also */
1266         table_counters_delete(lookup_value->restriction_id);
1267
1268         if (!g_tree_remove(g_system->rstns, key)) {
1269                 STC_LOGD("key not found");
1270                 return STC_ERROR_NO_DATA;
1271         }
1272
1273         return STC_ERROR_NONE;
1274 }
1275
1276 static stc_error_e __rstn_tree_add(stc_rstn_key_s *key,
1277                                    stc_rstn_value_s *value, gboolean debug)
1278 {
1279         stc_rstn_value_s *rstn_value;
1280
1281         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1282
1283         rstn_value = __rstn_lookup(g_system->rstns, key);
1284         if (!rstn_value) {
1285                 stc_rstn_key_s *rstn_key = MALLOC0(stc_rstn_key_s, 1);
1286                 if (!rstn_key) {
1287                         STC_LOGE("rstn_key allocation failed");
1288                         return STC_ERROR_OUT_OF_MEMORY;
1289                 }
1290
1291                 rstn_value = MALLOC0(stc_rstn_value_s, 1);
1292                 if (!rstn_value) {
1293                         STC_LOGE("rstn_value allocation failed");
1294                         FREE(rstn_key);
1295                         return STC_ERROR_OUT_OF_MEMORY;
1296                 }
1297
1298                 rstn_key->app_id = g_strdup(key->app_id);
1299                 rstn_key->ifname = g_strdup(key->ifname);
1300                 rstn_key->imsi = g_strdup(key->imsi);
1301                 rstn_key->iftype = key->iftype;
1302                 rstn_key->roaming = key->roaming;
1303
1304                 g_tree_insert(g_system->rstns, rstn_key, rstn_value);
1305         }
1306
1307         rstn_value->restriction_id = value->restriction_id;
1308         rstn_value->rst_state = value->rst_state;
1309         rstn_value->classid = value->classid;
1310         rstn_value->data_limit = value->data_limit;
1311         rstn_value->data_warn_limit = value->data_warn_limit;
1312         rstn_value->data_counter = 0;
1313         rstn_value->warn_limit_crossed_notified = FALSE;
1314         rstn_value->rstn_limit_crossed_notified = FALSE;
1315
1316         if (debug == TRUE)
1317                 __add_restriction_debug(key, rstn_value, NULL);
1318         else
1319                 __add_restriction(key, rstn_value, NULL);
1320
1321         return STC_ERROR_NONE;
1322 }
1323
1324 static stc_cb_ret_e __insert_restriction_cb(const table_restrictions_info *info,
1325                                             void *user_data)
1326 {
1327         stc_cb_ret_e ret = STC_CONTINUE;
1328
1329         stc_rstn_key_s key;
1330         stc_rstn_value_s value;
1331
1332         memset(&key, 0, sizeof(stc_rstn_key_s));
1333         memset(&value, 0, sizeof(stc_rstn_value_s));
1334
1335         key.app_id = g_strdup(info->app_id);
1336         key.ifname = g_strdup(info->ifname);
1337         key.imsi = g_strdup(info->imsi);
1338         key.iftype = info->iftype;
1339         key.roaming = info->roaming;
1340
1341         value.rst_state = info->rst_state;
1342         value.restriction_id = info->restriction_id;
1343
1344         if (value.rst_state != STC_RESTRICTION_EXCLUDED && info->app_id)
1345                 value.classid = get_classid_by_app_id(info->app_id, TRUE);
1346         else
1347                 value.classid = STC_UNKNOWN_CLASSID;
1348
1349         value.data_limit = info->data_limit;
1350         value.data_warn_limit = info->data_warn_limit;
1351
1352         if (__rstn_tree_add(&key, &value, FALSE) != STC_ERROR_NONE)
1353                 ret = STC_CANCEL;
1354
1355         FREE(key.app_id);
1356         FREE(key.ifname);
1357         FREE(key.imsi);
1358         return ret;
1359 }
1360
1361 static void __fill_restritions_list(void)
1362 {
1363         table_restrictions_foreach(__insert_restriction_cb, NULL);
1364         //__rstn_tree_printall();
1365 }
1366
1367 static gboolean __add_rstn_foreach_application(gpointer key,
1368                                                gpointer value,
1369                                                gpointer data)
1370 {
1371         stc_rstn_key_s *rstn_key = (stc_rstn_key_s *)key;
1372         stc_rstn_value_s *rstn_value = (stc_rstn_value_s *)value;
1373         gchar *app_id = (gchar *)data;
1374
1375         /* rstn rule is not for applications */
1376         if (rstn_key->app_id == NULL)
1377                 goto out;
1378
1379         /* rstn rule is not for this application */
1380         if (g_strcmp0(rstn_key->app_id, app_id) != 0)
1381                 goto out;
1382
1383         /* rstn rule is already applied */
1384         if (rstn_value->rst_state == STC_RESTRICTION_ACTIVATED)
1385                 goto out;
1386
1387         /* add restriction to system */
1388         if (rstn_value->rst_state == STC_RESTRICTION_EXCLUDED)
1389                 __process_restriction(RST_EXCLUDE, rstn_key, rstn_value, data);
1390         else
1391                 __process_restriction(RST_SET, rstn_key, rstn_value, data);
1392
1393         __print_rstn(rstn_key, rstn_value);
1394 out:
1395         return FALSE;
1396 }
1397
1398 static void __add_rstns_for_application(gchar *app_id)
1399 {
1400         g_tree_foreach(g_system->rstns, __add_rstn_foreach_application,
1401                        app_id);
1402 }
1403
1404 static void __add_application_by_interface(const char *app_id)
1405 {
1406         stc_app_key_s app_key;
1407         stc_app_value_s app_value;
1408
1409         if (app_id == NULL)
1410                 return;
1411
1412         memset(&app_key, 0, sizeof(stc_app_key_s));
1413         memset(&app_value, 0, sizeof(stc_app_value_s));
1414
1415         app_key.pkg_id = g_strdup(app_id);
1416         app_key.app_id = g_strdup(app_id);
1417
1418         app_value.type = STC_APP_TYPE_NONE;
1419         app_value.processes = NULL;
1420         app_value.counter.in_bytes = 0;
1421         app_value.counter.out_bytes = 0;
1422
1423         stc_monitor_application_add(app_key, app_value);
1424
1425         FREE(app_key.pkg_id);
1426         FREE(app_key.app_id);
1427 }
1428
1429 static int __vconf_get_int(const char *key, int *value)
1430 {
1431         int ret = 0;
1432
1433         ret = vconf_get_int(key, value);
1434         if (ret != VCONF_OK) {
1435                 STC_LOGE("Failed to get vconfkey [%s] value", key);
1436                 return -1;
1437         }
1438
1439         return 0;
1440 }
1441
1442 static int __vconf_set_int(const char *key, int value)
1443 {
1444         int ret = 0;
1445
1446         ret = vconf_set_int(key, value);
1447         if (ret != VCONF_OK) {
1448                 STC_LOGE("Failed to set vconfkey [%s] value", key);
1449                 return -1;
1450         }
1451
1452         return 0;
1453 }
1454
1455 static guint __get_background_state(void)
1456 {
1457         return g_system->background_state;;
1458 }
1459
1460 static void __set_background_state(guint state)
1461 {
1462         g_system->background_state = state;
1463 }
1464
1465 static gboolean __processes_tree_foreach_background(gpointer key,
1466                                                     gpointer value,
1467                                                     gpointer data)
1468 {
1469         stc_process_key_s *proc_key = (stc_process_key_s *)key;
1470         stc_app_key_s *app_key = (stc_app_key_s *)data;
1471
1472         if (g_system->background_state)
1473                 place_pids_to_net_cgroup(proc_key->pid, STC_BACKGROUND_APP_ID);
1474         else
1475                 place_pids_to_net_cgroup(proc_key->pid, app_key->app_id);
1476
1477         return FALSE;
1478 }
1479
1480 static gboolean __apps_tree_foreach_background(gpointer key, gpointer value,
1481                                         gpointer data)
1482 {
1483         stc_app_key_s *app_key = (stc_app_key_s *)key;
1484         stc_app_value_s *app_value = (stc_app_value_s *)value;
1485
1486         if (strstr(app_key->app_id, STC_BACKGROUND_APP_SUFFIX))
1487                 g_tree_foreach(app_value->processes,
1488                                __processes_tree_foreach_background, app_key);
1489
1490         return FALSE;
1491 }
1492
1493 static stc_error_e __process_update_background(void)
1494 {
1495         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1496
1497         g_tree_foreach(g_system->apps, __apps_tree_foreach_background, NULL);
1498
1499         return STC_ERROR_NONE;
1500 }
1501
1502 stc_error_e stc_monitor_init(void)
1503 {
1504         stc_system_s *system = MALLOC0(stc_system_s, 1);
1505         GIOChannel *gio = NULL;
1506
1507         ret_value_msg_if(system == NULL, STC_ERROR_OUT_OF_MEMORY, "stc_system_s malloc fail!");
1508
1509         /* initializing cgroups */
1510         cgroup_init();
1511
1512         /* creating monitored application tree */
1513         system->apps = g_tree_new_full(__apps_tree_key_compare, NULL,
1514                                        __apps_tree_key_free,
1515                                        __apps_tree_value_free);
1516
1517         system->rstns = g_tree_new_full(__rstns_tree_key_compare, NULL,
1518                                         __rstns_tree_key_free,
1519                                         __rstns_tree_value_free);
1520
1521         /* create netlink socket for updating kernel counters */
1522         system->contr_sock = create_netlink(NETLINK_NETFILTER, 0);
1523         if (!(system->contr_sock)) {
1524                 STC_LOGE("failed to open socket");
1525                 FREE(system);
1526                 return STC_ERROR_FAIL;
1527         }
1528
1529         gio = g_io_channel_unix_new(system->contr_sock);
1530         system->contr_gsource_id =
1531                 g_io_add_watch(gio, G_IO_IN | G_IO_ERR | G_IO_HUP,
1532                                (GIOFunc) __process_contr_reply,
1533                                NULL);
1534         g_io_channel_unref(gio);
1535
1536         g_system = system;
1537
1538         __add_application_by_interface(STC_TOTAL_DATACALL);
1539         __add_application_by_interface(STC_TOTAL_WIFI);
1540         __add_application_by_interface(STC_TOTAL_BLUETOOTH);
1541         __add_application_by_interface(STC_TOTAL_IPV4);
1542         __add_application_by_interface(STC_TOTAL_IPV6);
1543
1544         /* creating restriction rules tree */
1545         __update_contr_cb(NULL);
1546
1547         /* registering periodic kernel counters update callback */
1548         g_system->contr_timer_id = g_timeout_add_seconds(CONTR_TIMER_INTERVAL,
1549                                                          __update_contr_cb,
1550                                                          NULL);
1551         if (g_system->contr_timer_id == 0) {
1552                 STC_LOGE("Failed to register kernel counters update timer");
1553                 __close_contr_sock(g_system);
1554                 return STC_ERROR_FAIL;
1555         }
1556
1557         __vconf_get_int(VCONFKEY_STC_BACKGROUND_STATE,
1558                         (int *)&g_system->background_state);
1559
1560         __fill_restritions_list();
1561
1562         return STC_ERROR_NONE;
1563 }
1564
1565 stc_error_e stc_monitor_deinit(void)
1566 {
1567         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1568
1569         /* close netlink socket for updating kernel counters */
1570         __close_contr_sock(g_system);
1571
1572         /* remove kernel counters update timer */
1573         if (g_system->contr_timer_id > 0) {
1574                 g_source_remove(g_system->contr_timer_id);
1575                 g_system->contr_timer_id = 0;
1576         }
1577
1578         /* destroy monitored application tree */
1579         g_tree_destroy(g_system->apps);
1580         g_system->apps = NULL;
1581
1582         /* destroy restriction rules tree */
1583         g_tree_destroy(g_system->rstns);
1584         g_system->rstns = NULL;
1585
1586         FREE(g_system);
1587
1588         return STC_ERROR_NONE;
1589 }
1590
1591 stc_error_e stc_monitor_application_add(const stc_app_key_s app_key,
1592                                         const stc_app_value_s app_value)
1593 {
1594         stc_error_e ret = STC_ERROR_NONE;
1595         stc_app_key_s *key;
1596         stc_app_value_s *value;
1597         stc_app_value_s *lookup;
1598
1599         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1600
1601         lookup = __application_lookup(g_system->apps, &app_key);
1602         if (lookup) {
1603                 STC_LOGD("app_key already present");
1604                 return STC_ERROR_NONE;
1605         }
1606
1607         key = MALLOC0(stc_app_key_s, 1);
1608         if (!key) {
1609                 STC_LOGE("key allocation failed");
1610                 return STC_ERROR_OUT_OF_MEMORY;
1611         }
1612
1613         value = MALLOC0(stc_app_value_s, 1);
1614         if (!value) {
1615                 STC_LOGE("value allocation failed");
1616                 FREE(key);
1617                 return STC_ERROR_OUT_OF_MEMORY;
1618         }
1619
1620         key->app_id = g_strdup(app_key.app_id);
1621         key->pkg_id = g_strdup(app_key.pkg_id);
1622
1623         value->type = app_value.type;
1624         value->data_usage.in_bytes = app_value.data_usage.in_bytes;
1625         value->data_usage.out_bytes = app_value.data_usage.out_bytes;
1626
1627         value->processes = g_tree_new_full(__processes_tree_key_compare, NULL,
1628                                            __processes_tree_key_free,
1629                                            __processes_tree_value_free);
1630
1631         /* create cgroup and update classid */
1632         value->classid = get_classid_by_app_id(app_key.app_id, TRUE);
1633
1634         g_tree_insert(g_system->apps, key, value);
1635
1636         /* add nfacct rule for this classid */
1637         __add_application_monitor(key, value, stc_get_default_connection());
1638         __add_rstns_for_application(app_key.app_id);
1639
1640         return ret;
1641 }
1642
1643 stc_error_e stc_monitor_process_add(const stc_app_key_s app_key,
1644                                     const stc_process_key_s proc_key,
1645                                     const stc_process_value_s proc_value)
1646 {
1647         stc_error_e ret = STC_ERROR_NONE;
1648         stc_app_value_s *app_lookup;
1649         stc_process_key_s *key;
1650         stc_process_value_s *value;
1651         stc_process_value_s *proc_lookup;
1652
1653         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1654
1655         app_lookup = __application_lookup(g_system->apps, &app_key);
1656         if (!app_lookup) {
1657                 STC_LOGD("app_key not found");
1658                 return STC_ERROR_FAIL;
1659         }
1660
1661         proc_lookup = __process_lookup(app_lookup->processes, &proc_key);
1662         if (proc_lookup) {
1663                 STC_LOGD("proc_key already present");
1664                 return STC_ERROR_NONE;
1665         }
1666
1667         key = MALLOC0(stc_process_key_s, 1);
1668         if (!key) {
1669                 STC_LOGE("key allocation failed");
1670                 return STC_ERROR_OUT_OF_MEMORY;
1671         }
1672
1673         value = MALLOC0(stc_process_value_s, 1);
1674         if (!value) {
1675                 STC_LOGE("value allocation failed");
1676                 FREE(key);
1677                 return STC_ERROR_OUT_OF_MEMORY;
1678         }
1679
1680         key->pid = proc_key.pid;
1681
1682         value->ground = proc_value.ground;
1683
1684         g_tree_insert(app_lookup->processes, key, value);
1685
1686         /* add pid to application cgroup */
1687         place_pids_to_net_cgroup(proc_key.pid, app_key.app_id);
1688
1689         return ret;
1690 }
1691
1692 stc_error_e stc_monitor_process_remove(pid_t pid)
1693 {
1694         stc_error_e ret = STC_ERROR_NONE;
1695         stc_process_key_s proc_key = {
1696                 .pid = pid
1697         };
1698
1699         remove_pid_context_s context = {
1700                 .app_key = NULL,
1701                 .proc_key = &proc_key,
1702                 .entry_removed = FALSE,
1703         };
1704
1705         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1706
1707         g_tree_foreach(g_system->apps, __apps_tree_foreach_remove_pid,
1708                        &context);
1709
1710         if (context.entry_removed)
1711                 __application_remove_if_empty(context.app_key);
1712
1713         return ret;
1714 }
1715
1716 stc_error_e stc_monitor_process_update_ground(const stc_app_key_s app_key,
1717                                               const stc_process_key_s proc_key,
1718                                               stc_app_state_e ground)
1719 {
1720         stc_error_e ret = STC_ERROR_NONE;
1721         stc_app_value_s *app_lookup;
1722         stc_process_value_s *proc_lookup;
1723
1724         ret_value_msg_if(g_system == NULL, STC_ERROR_FAIL, "stc monitor not initialized!");
1725
1726         app_lookup = __application_lookup(g_system->apps, &app_key);
1727         if (!app_lookup) {
1728                 STC_LOGD("app_key not found");
1729                 return STC_ERROR_FAIL;
1730         }
1731
1732         proc_lookup = __process_lookup(app_lookup->processes, &proc_key);
1733         if (!proc_lookup) {
1734                 STC_LOGD("proc_key not found");
1735                 return STC_ERROR_FAIL;
1736         }
1737
1738         if (proc_lookup->ground != ground)
1739                 proc_lookup->ground = ground;
1740
1741         if (ground == STC_APP_STATE_BACKGROUND && __get_background_state())
1742                 place_pids_to_net_cgroup(proc_key.pid, STC_BACKGROUND_APP_ID);
1743         else
1744                 place_pids_to_net_cgroup(proc_key.pid, app_key.app_id);
1745
1746         return ret;
1747 }
1748
1749 void stc_monitor_update_rstn_by_default_connection(void *data)
1750 {
1751         static default_connection_s old_connection;
1752         default_connection_s *new_connection = (default_connection_s *)data;
1753
1754         if (old_connection.path != NULL) {
1755                 if (g_system->apps)
1756                         g_tree_foreach(g_system->apps,
1757                                        __remove_application_monitor,
1758                                        (gpointer)&old_connection);
1759
1760                 if (g_system->rstns)
1761                         g_tree_foreach(g_system->rstns,
1762                                        __remove_restriction,
1763                                        (gpointer)&old_connection);
1764         }
1765
1766         FREE(old_connection.path);
1767         FREE(old_connection.ifname);
1768         old_connection.type = 0;
1769         old_connection.roaming = 0;
1770
1771         if (new_connection != NULL && new_connection->path != NULL) {
1772                 if (g_system->apps)
1773                         g_tree_foreach(g_system->apps,
1774                                        __add_application_monitor,
1775                                        (gpointer)new_connection);
1776
1777                 if (g_system->rstns)
1778                         g_tree_foreach(g_system->rstns, __add_restriction,
1779                                        NULL);
1780
1781                 old_connection.path = g_strdup(new_connection->path);
1782                 old_connection.ifname = g_strdup(new_connection->ifname);
1783                 old_connection.type = new_connection->type;
1784                 old_connection.roaming = new_connection->roaming;
1785         }
1786 }
1787
1788 stc_error_e stc_monitor_rstns_tree_add(const table_restrictions_info *info)
1789 {
1790         stc_error_e ret;
1791
1792         stc_rstn_key_s key;
1793         stc_rstn_value_s value;
1794
1795         memset(&key, 0, sizeof(stc_rstn_key_s));
1796         memset(&value, 0, sizeof(stc_rstn_value_s));
1797
1798         key.app_id = g_strdup(info->app_id);
1799         key.ifname = g_strdup(info->ifname);
1800         key.imsi = g_strdup(info->imsi);
1801         key.iftype = info->iftype;
1802         key.roaming = info->roaming;
1803
1804         value.rst_state = info->rst_state;
1805         value.restriction_id = info->restriction_id;
1806
1807         if (value.rst_state != STC_RESTRICTION_EXCLUDED && info->app_id)
1808                 value.classid = get_classid_by_app_id(info->app_id, TRUE);
1809         else
1810                 value.classid = STC_UNKNOWN_CLASSID;
1811
1812         if (value.classid == STC_BACKGROUND_APP_CLASSID) {
1813                 __set_background_state(TRUE);
1814                 __vconf_set_int(VCONFKEY_STC_BACKGROUND_STATE, g_system->background_state);
1815                 __process_update_background();
1816         }
1817
1818         value.data_limit = info->data_limit;
1819         value.data_warn_limit = info->data_warn_limit;
1820
1821         ret = __rstn_tree_add(&key, &value, TRUE);
1822
1823         FREE(key.app_id);
1824         FREE(key.ifname);
1825         FREE(key.imsi);
1826         return ret;
1827 }
1828
1829 stc_error_e stc_monitor_rstns_tree_remove(const table_restrictions_info *info)
1830 {
1831         stc_error_e ret;
1832
1833         stc_rstn_key_s key = {
1834                 .app_id = g_strdup(info->app_id),
1835                 .ifname = g_strdup(info->ifname),
1836                 .imsi = g_strdup(info->imsi),
1837                 .iftype = info->iftype,
1838                 .roaming = info->roaming,
1839         };
1840
1841         if (!strcmp(key.app_id, STC_BACKGROUND_APP_ID)) {
1842                 __set_background_state(FALSE);
1843                 __vconf_set_int(VCONFKEY_STC_BACKGROUND_STATE, g_system->background_state);
1844                 __process_update_background();
1845         }
1846
1847         ret = __rstn_tree_remove(&key);
1848
1849         FREE(key.app_id);
1850         FREE(key.ifname);
1851         FREE(key.imsi);
1852         return ret;
1853 }
1854
1855 int stc_monitor_get_counter_socket(void)
1856 {
1857         return g_system->contr_sock;
1858 }