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