src/wifi-power.c

   1 /*
   2  * Network Configuration Module
   3  *
   4  * Copyright (c) 2000 - 2012 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  * http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  *
  18  */
  19
  20 #include <errno.h>
  21 #include <vconf.h>
  22 #include <vconf-keys.h>
  23 #include <ITapiSim.h>
  24 #include <TapiUtility.h>
  25 #include <stdio.h>
  26 #include <tzplatform_config.h>
  27
  28 #if defined TIZEN_P2P_ENABLE && !defined WLAN_CONCURRENT_MODE
  29 #include <wifi-direct.h>
  30 #endif
  31
  32 #include "log.h"
  33 #include "util.h"
  34 #include "netdbus.h"
  35 #include "neterror.h"
  36 #include "wifi-wps.h"
  37 #include "wifi-power.h"
  38 #include "wifi-state.h"
  39 #include "wifi-tel-intf.h"
  40 #include "netsupplicant.h"
  41 #include "network-state.h"
  42 #include "network-dpm.h"
  43 #include "wifi-firmware.h"
  44 #include "wifi-background-scan.h"
  45
  46
  47 #define WLAN_SUPPLICANT_SCRIPT          "/usr/sbin/wpa_supp.sh"
  48 #define P2P_SUPPLICANT_SCRIPT           "/usr/sbin/p2p_supp.sh"
  49
  50 #define VCONF_WIFI_OFF_STATE_BY_AIRPLANE        "file/private/wifi/wifi_off_by_airplane"
  51 #define VCONF_WIFI_OFF_STATE_BY_RESTRICTED      "file/private/wifi/wifi_off_by_restricted"
  52 #define VCONF_WIFI_OFF_STATE_BY_EMERGENCY       "file/private/wifi/wifi_off_by_emergency"
  53 #if defined TIZEN_WEARABLE
  54 #define VCONF_WIFI_WEARABLE_WIFI_USE                    "db/private/wifi/wearable_wifi_use"
  55 #endif
  56 #if !defined TIZEN_WEARABLE
  57 #define VCONFKEY_SETAPPL_NETWORK_PERMIT_WITH_LCD_OFF_LIMIT      "db/setting/network_with_lcd_off_limit"
  58 #endif
  59
  60 #define WLAN_MAC_INFO               tzplatform_mkpath(TZ_SYS_ETC, "/.mac.info")
  61 #define WLAN_MAC_ADDR_MAX           20
  62 #define VCONF_WIFI_BSSID_ADDRESS        "db/wifi/bssid_address"
  63
  64 #if defined TIZEN_TV
  65 #define ETH_MAC_ADDR_SIZE 6
  66 #define VCONF_ETH_MAC_ADDRESS  "db/dnet/mac_address"
  67 #define NET_EXEC_PATH "/sbin/ifconfig"
  68 #define OS_RANDOM_FILE "/dev/urandom"
  69 #endif
  70
  71 static gboolean connman_wifi_technology_state = FALSE;
  72 static gboolean wifi_firmware_recovery_mode = FALSE;
  73 static int airplane_mode = 0;
  74
  75 #if defined TIZEN_WEARABLE
  76 static int psmode_wifi_use = 1;
  77 #endif
  78
  79 static gboolean __is_wifi_restricted(void)
  80 {
  81 #if defined TIZEN_WEARABLE
  82         return FALSE;
  83 #endif
  84         int restricted_mode = 0;
  85
  86         netconfig_vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE, &restricted_mode);
  87         if (restricted_mode != 0) {
  88                 DBG("network restricted mode[%d]", restricted_mode);
  89                 return TRUE;
  90         }
  91
  92         return FALSE;
  93 }
  94
  95 static void __technology_reply(GObject *source_object, GAsyncResult *res, gpointer user_data)
  96 {
  97         GVariant *reply;
  98         GDBusConnection *conn = NULL;
  99         GError *error = NULL;
 100
 101         conn = G_DBUS_CONNECTION(source_object);
 102         reply = g_dbus_connection_call_finish(conn, res, &error);
 103
 104         if (reply == NULL) {
 105                 if (error != NULL) {
 106                         if (g_strstr_len(error->message, strlen(error->message),
 107                                         CONNMAN_ERROR_INTERFACE ".AlreadyEnabled") != NULL) {
 108                                 wifi_state_update_power_state(TRUE);
 109                         } else if (g_strstr_len(error->message, strlen(error->message),
 110                                         CONNMAN_ERROR_INTERFACE ".AlreadyDisabled") != NULL) {
 111                                 wifi_state_update_power_state(FALSE);
 112                         } else {
 113                                 ERR("Fail to request status [%d: %s]", error->code, error->message);
 114                                 wifi_state_update_power_state(FALSE);
 115                         }
 116                         g_error_free(error);
 117                 } else {
 118                         ERR("Fail to request status");
 119                         wifi_state_update_power_state(FALSE);
 120                 }
 121         } else {
 122                 DBG("Successfully requested");
 123         }
 124
 125         g_variant_unref(reply);
 126         netconfig_gdbus_pending_call_unref();
 127 }
 128
 129 static int __execute_supplicant(gboolean enable)
 130 {
 131         int rv = 0;
 132         const char *path = WLAN_SUPPLICANT_SCRIPT;
 133         char *const args_enable[] = { "/usr/sbin/wpa_supp.sh", "start", NULL };
 134         char *const args_disable[] = { "/usr/sbin/wpa_supp.sh", "stop", NULL };
 135         char *const envs[] = { NULL };
 136         static gboolean enabled = FALSE;
 137
 138         if (enabled == enable)
 139                 return -EALREADY;
 140
 141         if (enable == TRUE)
 142                 rv = netconfig_execute_file(path, args_enable, envs);
 143         else
 144                 rv = netconfig_execute_file(path, args_disable, envs);
 145         if (rv < 0)
 146                 return -EIO;
 147
 148         DBG("wpa_supplicant %s", enable == TRUE ? "started" : "stopped");
 149
 150         enabled = enable;
 151
 152         return 0;
 153 }
 154
 155 #if defined TIZEN_P2P_ENABLE && defined WLAN_CONCURRENT_MODE
 156 static int __netconfig_p2p_supplicant(gboolean enable)
 157 {
 158         int rv = 0;
 159         const char *path = P2P_SUPPLICANT_SCRIPT;
 160         char *const args_enable[] = { P2P_SUPPLICANT_SCRIPT, "start", NULL };
 161         char *const args_disable[] = { P2P_SUPPLICANT_SCRIPT, "stop", NULL };
 162         char *const envs[] = { NULL };
 163
 164         if (enable == TRUE)
 165                 rv = netconfig_execute_file(path, args_enable, envs);
 166         else
 167                 rv = netconfig_execute_file(path, args_disable, envs);
 168         if (rv < 0)
 169                 return -EIO;
 170
 171         DBG("p2p_supplicant %s", enable == TRUE ? "started" : "stopped");
 172
 173         return 0;
 174 }
 175 #endif
 176
 177 void netconfig_wifi_recover_firmware(void)
 178 {
 179         wifi_firmware_recovery_mode = TRUE;
 180
 181         netconfig_wifi_bgscan_stop();
 182
 183         wifi_power_off();
 184 }
 185
 186 #if defined TIZEN_P2P_ENABLE && !defined WLAN_CONCURRENT_MODE
 187 static void __netconfig_wifi_direct_state_cb(int error_code, wifi_direct_device_state_e device_state, void *user_data)
 188 {
 189         int err;
 190
 191         wifi_direct_unset_device_state_changed_cb();
 192         wifi_direct_deinitialize();
 193
 194         if (device_state == WIFI_DIRECT_DEVICE_STATE_DEACTIVATED) {
 195                 err = wifi_power_on();
 196                 if (err < 0) {
 197                         if (err == -EALREADY)
 198                                 wifi_state_update_power_state(TRUE);
 199                         else
 200                                 wifi_state_emit_power_failed();
 201                 }
 202         }
 203 }
 204
 205 static gboolean __netconfig_wifi_direct_power_off(void)
 206 {
 207         DBG("Wi-Fi direct is turning off");
 208
 209         if (wifi_direct_initialize() < 0)
 210                 return FALSE;
 211
 212         if (wifi_direct_set_device_state_changed_cb(__netconfig_wifi_direct_state_cb, NULL) < 0)
 213                 return FALSE;
 214
 215         if (wifi_direct_deactivate() < 0)
 216                 return FALSE;
 217
 218         return TRUE;
 219 }
 220 #endif
 221
 222 static int _load_driver_and_supplicant(void)
 223 {
 224         int err = 0;
 225         wifi_tech_state_e tech_state;
 226
 227         tech_state = wifi_state_get_technology_state();
 228         if (tech_state > NETCONFIG_WIFI_TECH_OFF)
 229                 return -EALREADY;
 230
 231         err = __execute_supplicant(TRUE);
 232         if (err < 0 && err != -EALREADY)
 233                 return err;
 234
 235         err = netconfig_wifi_firmware(NETCONFIG_WIFI_STA, TRUE);
 236         if (err < 0 && err != -EALREADY) {
 237                 __execute_supplicant(FALSE);
 238                 return err;
 239         }
 240
 241         wifi_state_set_tech_state(NETCONFIG_WIFI_TECH_WPS_ONLY);
 242
 243         return 0;
 244 }
 245
 246 static int _remove_driver_and_supplicant(void)
 247 {
 248         int err = 0;
 249
 250         if (wifi_firmware_recovery_mode != TRUE &&
 251                                         netconfig_wifi_is_wps_enabled() == TRUE) {
 252                 DBG("Wi-Fi WPS mode");
 253                 return 0;
 254         }
 255
 256         err = netconfig_wifi_firmware(NETCONFIG_WIFI_STA, FALSE);
 257         if (err < 0 && err != -EALREADY)
 258                 return err;
 259
 260         err = __execute_supplicant(FALSE);
 261         if (err < 0 && err != -EALREADY)
 262                 return err;
 263
 264         wifi_state_set_tech_state(NETCONFIG_WIFI_TECH_OFF);
 265
 266         if (wifi_firmware_recovery_mode == TRUE) {
 267                 if (wifi_power_on() < 0)
 268                         ERR("Failed to recover Wi-Fi firmware");
 269
 270                 wifi_firmware_recovery_mode = FALSE;
 271         }
 272
 273         return 0;
 274 }
 275
 276 static int _set_connman_technology_power(gboolean enable)
 277 {
 278         gboolean reply = FALSE;
 279         GVariant *param0 = NULL;
 280         GVariant *params = NULL;
 281         char key[] = "Powered";
 282         gboolean value_enable = TRUE;
 283         gboolean value_disable = FALSE;
 284
 285         if (connman_wifi_technology_state == enable)
 286                 return -EALREADY;
 287
 288         if (enable == TRUE)
 289                 param0 = g_variant_new_boolean(value_enable);
 290         else
 291                 param0 = g_variant_new_boolean(value_disable);
 292
 293         params = g_variant_new("(sv)", key, param0);
 294
 295         reply = netconfig_invoke_dbus_method_nonblock(CONNMAN_SERVICE,
 296                                         CONNMAN_WIFI_TECHNOLOGY_PREFIX, CONNMAN_TECHNOLOGY_INTERFACE,
 297                                         "SetProperty", params, __technology_reply);
 298
 299         if (reply != TRUE) {
 300                 ERR("Fail to set technology %s", enable == TRUE ? "enable" : "disable");
 301                 return -ESRCH;
 302         }
 303
 304         /* If Wi-Fi powered off,
 305          * Do not remove Wi-Fi driver until ConnMan technology state updated
 306          */
 307         if (enable == TRUE)
 308                 connman_wifi_technology_state = enable;
 309
 310         /* To be keep safe, early disable Wi-Fi tech state */
 311         if (enable != TRUE)
 312                 wifi_state_set_tech_state(NETCONFIG_WIFI_TECH_WPS_ONLY);
 313
 314         return 0;
 315 }
 316
 317 static void __netconfig_set_wifi_bssid(void)
 318 {
 319         int rv = 0;
 320         char bssid[WLAN_MAC_ADDR_MAX];
 321
 322         FILE *fp = fopen(WLAN_MAC_INFO, "r");
 323
 324         if (fp == NULL) {
 325                 ERR("Fail to open file");
 326                 return;
 327         }
 328
 329         fseek(fp, 0L, SEEK_SET);
 330         rv = fscanf(fp, "%17s", bssid);
 331
 332         if (rv < 0)
 333                 ERR("Fail to read bssid");
 334
 335         netconfig_set_vconf_str(VCONF_WIFI_BSSID_ADDRESS, bssid);
 336
 337         fclose(fp);
 338 }
 339
 340 int netconfig_wifi_driver_and_supplicant(gboolean enable)
 341 {
 342         /* There are 3 thumb rules for Wi-Fi power management
 343          *   1. Do not make exposed API to control wpa_supplicant and driver directly.
 344          *      It probably breaks ConnMan technology operation.
 345          *
 346          *   2. Do not remove driver and wpa_supplicant if ConnMan already enabled.
 347          *      It breaks ConnMan technology operation.
 348          *
 349          *   3. Final the best rule: make it as simple as possible.
 350          *      Simple code enables easy maintenance and reduces logical errors.
 351          */
 352         if (enable == TRUE)
 353                 return _load_driver_and_supplicant();
 354         else {
 355                 if (connman_wifi_technology_state == TRUE)
 356                         return -ENOSYS;
 357
 358                 return _load_driver_and_supplicant();
 359         }
 360 }
 361
 362 void netconfig_wifi_disable_technology_state_by_only_connman_signal(void)
 363 {
 364         /* Important: it's only done by ConnMan technology signal update */
 365         connman_wifi_technology_state = FALSE;
 366 }
 367
 368 int netconfig_wifi_on(void)
 369 {
 370         int err = 0;
 371         wifi_tech_state_e wifi_tech_state;
 372
 373         wifi_tech_state = wifi_state_get_technology_state();
 374         if (wifi_tech_state >= NETCONFIG_WIFI_TECH_POWERED)
 375                 return -EALREADY;
 376
 377         if (__is_wifi_restricted() == TRUE)
 378                 return -EPERM;
 379
 380         if (netconfig_is_wifi_tethering_on() == TRUE) {
 381                 /* TODO: Wi-Fi tethering turns off here */
 382                 /* return TRUE; */
 383                 ERR("Failed to turn tethering off");
 384                 return -EBUSY;
 385         }
 386
 387 #if defined TIZEN_P2P_ENABLE && !defined WLAN_CONCURRENT_MODE
 388         if (netconfig_is_wifi_direct_on() == TRUE) {
 389                 if (__netconfig_wifi_direct_power_off() == TRUE)
 390                         return -EINPROGRESS;
 391                 else {
 392                         ERR("Failed to turn Wi-Fi direct off");
 393                         return -EBUSY;
 394                 }
 395         }
 396 #endif
 397
 398         err = wifi_power_driver_and_supplicant(TRUE);
 399         if (err < 0 && err != -EALREADY)
 400                 return err;
 401
 402         err = _set_connman_technology_power(TRUE);
 403
 404         __netconfig_set_wifi_bssid();
 405
 406         return err;
 407 }
 408
 409 int netconfig_wifi_off(void)
 410 {
 411         int err;
 412
 413 #if defined TIZEN_P2P_ENABLE && defined WLAN_CONCURRENT_MODE
 414         __netconfig_p2p_supplicant(FALSE);
 415 #endif
 416
 417         err = _set_connman_technology_power(FALSE);
 418         if (err == -EALREADY)
 419                 wifi_state_update_power_state(FALSE);
 420
 421         return 0;
 422 }
 423
 424 #if defined TIZEN_WEARABLE
 425 int netconfig_wifi_on_wearable(gboolean device_picker_test)
 426 {
 427         int err = 0;
 428         int wifi_use;
 429         int ps_mode;
 430
 431         if (netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use) < 0) {
 432                 ERR("Fail to get VCONF_WIFI_WEARABLE_WIFI_USE");
 433                 return -EIO;
 434         }
 435
 436         if (wifi_use > 0) {
 437                 if (netconfig_vconf_get_int(VCONFKEY_SETAPPL_PSMODE, &ps_mode) < 0) {
 438                         ERR("Fail to get VCONFKEY_SETAPPL_PSMODE");
 439                         return -EIO;
 440                 }
 441
 442                 if (ps_mode > SETTING_PSMODE_NORMAL) {
 443                         WARN("ps mode is on(%d), Not turn on Wi-Fi", ps_mode);
 444                         return -EPERM;
 445                 }
 446         } else {
 447                 WARN("Not permitted Wi-Fi on");
 448                 return -EPERM;
 449         }
 450
 451         err = wifi_power_driver_and_supplicant(TRUE);
 452         if (err < 0 && err != -EALREADY)
 453                 return err;
 454
 455         err = _set_connman_technology_power(TRUE);
 456
 457         if (device_picker_test == TRUE)
 458                 netconfig_wifi_enable_device_picker_test();
 459
 460         return err;
 461 }
 462
 463 static void __wearable_wifi_use_changed_cb(keynode_t* node, void* user_data)
 464 {
 465         int wifi_state;
 466         int wifi_use = 1;
 467
 468         if (netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state) < 0) {
 469                 ERR("Fail to get VCONFKEY_WIFI_STATE");
 470                 return;
 471         }
 472
 473         if (node != NULL)
 474                 wifi_use = vconf_keynode_get_int(node);
 475         else
 476                 netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use);
 477
 478         if (wifi_use > 0) {
 479                 DBG("wifi use on");
 480                 if (wifi_state > VCONFKEY_WIFI_OFF) {
 481                         WARN("Wi-Fi is already turned on");
 482                         return;
 483                 }
 484                 wifi_power_on_wearable(TRUE);
 485         } else {
 486                 ERR("## wifi use [OFF]");
 487                 if (wifi_state == VCONFKEY_WIFI_OFF) {
 488                         WARN("Wi-Fi is already turned off");
 489                         return;
 490                 }
 491
 492                 wifi_power_off();
 493         }
 494 }
 495 #else
 496 static void __netconfig_wifi_restrict_mode(keynode_t *node, void *user_data)
 497 {
 498         int wifi_state = 0, restricted = 0;
 499         int wifi_off_by_restricted = 0;
 500
 501         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, &wifi_off_by_restricted);
 502
 503         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 504
 505         if (node != NULL)
 506                 restricted = vconf_keynode_get_bool(node);
 507         else
 508                 netconfig_vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE, &restricted);
 509
 510         DBG("network restricted mode %s", restricted > 0 ? "ON" : "OFF");
 511         DBG("Wi-Fi state %d, Wi-Fi was off by restricted mode %s", wifi_state,
 512                         wifi_off_by_restricted ? "Yes" : "No");
 513
 514         if (restricted > 0) {
 515                 /* network restricted on */
 516                 if (wifi_state == VCONFKEY_WIFI_OFF)
 517                         return;
 518
 519                 wifi_power_off();
 520
 521                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, 1);
 522         } else {
 523                 /* network restricted off */
 524                 if (!wifi_off_by_restricted)
 525                         return;
 526
 527                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, 0);
 528
 529                 if (wifi_state > VCONFKEY_WIFI_OFF)
 530                         return;
 531
 532                 wifi_power_on();
 533         }
 534 }
 535 #endif
 536
 537 static void __netconfig_wifi_airplane_mode(keynode_t *node, void *user_data)
 538 {
 539         int wifi_state = 0, airplane_state = 0;
 540         int wifi_off_by_airplane = 0;
 541
 542         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, &wifi_off_by_airplane);
 543
 544 #if defined TIZEN_WEARABLE
 545         netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_state)
 546 #else
 547         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 548 #endif
 549
 550         if (node != NULL)
 551                 airplane_state = vconf_keynode_get_bool(node);
 552         else
 553                 netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_FLIGHT_MODE, &airplane_state);
 554
 555         DBG("airplane mode %s (prev:%d)", airplane_state > 0 ? "ON" : "OFF", airplane_mode);
 556         DBG("Wi-Fi state(or use) %d, Wi-Fi was off by flight mode %s", wifi_state,
 557                         wifi_off_by_airplane ? "Yes" : "No");
 558
 559         if (airplane_mode == airplane_state)
 560                 return ;
 561
 562         airplane_mode = airplane_state;
 563
 564         if (airplane_state > 0) {
 565                 /* airplane mode on */
 566                 if (wifi_state == VCONFKEY_WIFI_OFF)
 567                         return;
 568
 569                 wifi_power_off();
 570
 571                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 1);
 572 #if defined TIZEN_WEARABLE
 573                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 0);
 574 #endif
 575         } else {
 576                 /* airplane mode off */
 577                 if (!wifi_off_by_airplane)
 578                         return;
 579
 580                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
 581 #if defined TIZEN_WEARABLE
 582                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 1);
 583 #else
 584                 if (wifi_state > VCONFKEY_WIFI_OFF)
 585                         return;
 586
 587                 wifi_power_on();
 588 #endif
 589         }
 590 }
 591
 592 static void __emergency_mode_changed_cb(keynode_t *node, void *user_data)
 593 {
 594         int wifi_state = 0, emergency = 0;
 595         int wifi_off_by_emergency = 0;
 596 #if !defined TIZEN_WEARABLE
 597         int emergency_by_fmm = 0;
 598 #endif
 599 #if defined TIZEN_WEARABLE
 600         int wifi_use = 1;
 601 #endif
 602
 603         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, &wifi_off_by_emergency);
 604         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 605
 606 #if !defined TIZEN_WEARABLE
 607         netconfig_vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_PERMIT_WITH_LCD_OFF_LIMIT, &emergency_by_fmm);
 608         DBG("emergency mode by Find My Mobile (%d)", emergency_by_fmm);
 609         if (emergency_by_fmm == 1)
 610                 return;
 611 #endif
 612
 613         if (node != NULL)
 614                 emergency = vconf_keynode_get_int(node);
 615         else
 616                 netconfig_vconf_get_int(VCONFKEY_SETAPPL_PSMODE, &emergency);
 617
 618         DBG("emergency mode %s", emergency > SETTING_PSMODE_POWERFUL ? "ON" : "OFF");
 619         DBG("Wi-Fi state %d, Wi-Fi was off by emergency mode %s", wifi_state, wifi_off_by_emergency ? "Yes" : "No");
 620
 621 #if defined TIZEN_WEARABLE
 622         if (emergency == SETTING_PSMODE_WEARABLE) {
 623                 /* basic power saving mode on */
 624         } else if (emergency == SETTING_PSMODE_WEARABLE_ENHANCED) {
 625                 /* enhanced power saving mode on */
 626                 netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use);
 627                 psmode_wifi_use = wifi_use;
 628                 if (wifi_use != 0)
 629                         netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 0);
 630
 631                 if (wifi_state == VCONFKEY_WIFI_OFF)
 632                         return;
 633
 634                 wifi_power_off();
 635                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 1);
 636         } else {
 637                 /* power saving mode off */
 638                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, psmode_wifi_use);
 639                 if (!wifi_off_by_emergency)
 640                         return;
 641
 642                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 0);
 643                 if (wifi_state > VCONFKEY_WIFI_OFF)
 644                         return;
 645
 646                 wifi_power_on_wearable(TRUE);
 647         }
 648 #else
 649         if (emergency > SETTING_PSMODE_POWERFUL) {
 650                 /* emergency mode on */
 651                 if (wifi_state == VCONFKEY_WIFI_OFF)
 652                         return;
 653
 654                 wifi_power_off();
 655
 656                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 1);
 657         } else {
 658                 /* emergency mode off */
 659                 if (!wifi_off_by_emergency)
 660                         return;
 661
 662                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 0);
 663
 664                 if (wifi_state > VCONFKEY_WIFI_OFF)
 665                         return;
 666
 667                 wifi_power_on();
 668         }
 669 #endif
 670
 671 }
 672
 673 static void __pm_state_changed_cb(keynode_t* node, void* user_data)
 674 {
 675         int new_state = -1;
 676         int wifi_state = 0;
 677         static int prev_state = VCONFKEY_PM_STATE_NORMAL;
 678
 679         if (netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state) < 0) {
 680                 ERR("Fail to get VCONFKEY_WIFI_STATE");
 681                 return;
 682         }
 683
 684         /* PM state
 685          *      VCONFKEY_PM_STATE_NORMAL = 1,
 686          *      VCONFKEY_PM_STATE_LCDDIM,
 687          *      VCONFKEY_PM_STATE_LCDOFF,
 688          *      VCONFKEY_PM_STATE_SLEEP
 689          */
 690         if (node != NULL)
 691                 new_state = vconf_keynode_get_int(node);
 692         else
 693                 netconfig_vconf_get_int(VCONFKEY_PM_STATE, &new_state);
 694
 695         DBG("wifi state: %d (0 off / 1 on / 2 connected)", wifi_state);
 696         DBG("Old PM state: %d, current: %d", prev_state, new_state);
 697
 698         if ((new_state == VCONFKEY_PM_STATE_NORMAL) && (prev_state >= VCONFKEY_PM_STATE_LCDOFF)) {
 699                 netconfig_wifi_bgscan_stop();
 700                 netconfig_wifi_bgscan_start(TRUE);
 701         }
 702
 703         prev_state = new_state;
 704 }
 705
 706 #if defined TIZEN_TELEPHONY_ENABLE
 707 static void _tapi_noti_sim_status_cb(TapiHandle *handle, const char *noti_id,
 708                                                                                 void *data, void *user_data)
 709 {
 710         TelSimCardStatus_t *status = data;
 711
 712         if (*status == TAPI_SIM_STATUS_SIM_INIT_COMPLETED) {
 713                 DBG("Turn Wi-Fi on automatically");
 714 #if defined TIZEN_WEARABLE
 715                 wifi_power_on_wearable(TRUE);
 716 #else
 717                 wifi_power_on();
 718 #endif
 719                 netconfig_tel_deinit();
 720         }
 721 }
 722
 723 static gboolean netconfig_tapi_check_sim_state(void)
 724 {
 725         int ret, card_changed;
 726         TelSimCardStatus_t status = TAPI_SIM_STATUS_UNKNOWN;
 727         TapiHandle *tapi_handle = NULL;
 728
 729         tapi_handle = (TapiHandle *)netconfig_tel_init();
 730         if (tapi_handle == NULL) {
 731                 ERR("Failed to tapi init");
 732                 return FALSE;
 733         }
 734
 735         ret = tel_get_sim_init_info(tapi_handle, &status, &card_changed);
 736         if (ret != TAPI_API_SUCCESS) {
 737                 ERR("tel_get_sim_init_info() Failed : [%d]", ret);
 738                 netconfig_tel_deinit();
 739                 return FALSE;
 740         }
 741
 742         switch (status) {
 743         case TAPI_SIM_STATUS_UNKNOWN:
 744         case TAPI_SIM_STATUS_CARD_ERROR:
 745         case TAPI_SIM_STATUS_CARD_NOT_PRESENT:
 746         case TAPI_SIM_STATUS_CARD_BLOCKED:
 747         case TAPI_SIM_STATUS_SIM_INIT_COMPLETED:
 748                 break;
 749         case TAPI_SIM_STATUS_SIM_PIN_REQUIRED:
 750         case TAPI_SIM_STATUS_SIM_INITIALIZING:
 751         case TAPI_SIM_STATUS_SIM_PUK_REQUIRED:
 752         case TAPI_SIM_STATUS_SIM_LOCK_REQUIRED:
 753         case TAPI_SIM_STATUS_SIM_NCK_REQUIRED:
 754         case TAPI_SIM_STATUS_SIM_NSCK_REQUIRED:
 755         case TAPI_SIM_STATUS_SIM_SPCK_REQUIRED:
 756         case TAPI_SIM_STATUS_SIM_CCK_REQUIRED:
 757                 tel_register_noti_event(tapi_handle, TAPI_NOTI_SIM_STATUS,
 758                                 _tapi_noti_sim_status_cb, NULL);
 759                 return FALSE;
 760         default:
 761                 ERR("not defined status(%d)", status);
 762                 break;
 763         }
 764
 765         netconfig_tel_deinit();
 766
 767         return TRUE;
 768 }
 769
 770 static void __netconfig_telephony_ready_changed_cb(keynode_t * node, void *data)
 771 {
 772         int telephony_ready = 0;
 773
 774         if (node != NULL)
 775                 telephony_ready = vconf_keynode_get_bool(node);
 776         else
 777                 netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_READY, &telephony_ready);
 778
 779         if (telephony_ready != 0) {
 780                 if (netconfig_tapi_check_sim_state() == FALSE) {
 781                         DBG("Sim is not initialized yet.");
 782
 783                         goto done;
 784                 }
 785         } else
 786                 return;
 787
 788         DBG("Turn Wi-Fi on automatically");
 789
 790 #if defined TIZEN_WEARABLE
 791         wifi_power_on_wearable(TRUE);
 792 #else
 793         wifi_power_on();
 794 #endif
 795
 796 done:
 797         vconf_ignore_key_changed(VCONFKEY_TELEPHONY_READY, __netconfig_telephony_ready_changed_cb);
 798 }
 799 #endif
 800
 801 int wifi_power_driver_and_supplicant(gboolean enable)
 802 {
 803         /* There are 3 thumb rules for Wi-Fi power management
 804          *   1. Do not make exposed API to control wpa_supplicant and driver directly.
 805          *      It probably breaks ConnMan technology operation.
 806          *
 807          *   2. Do not remove driver and wpa_supplicant if ConnMan already enabled.
 808          *      It breaks ConnMan technology operation.
 809          *
 810          *   3. Final the best rule: make it as simple as possible.
 811          *      Simple code enables easy maintenance and reduces logical errors.
 812          */
 813         if (enable == TRUE) {
 814                 return _load_driver_and_supplicant();
 815         } else {
 816                 if (connman_wifi_technology_state == TRUE)
 817                         return -ENOSYS;
 818
 819                 return _remove_driver_and_supplicant();
 820         }
 821 }
 822
 823 void wifi_power_disable_technology_state_by_only_connman_signal(void)
 824 {
 825         /* Important: it's only done by ConnMan technology signal update */
 826         connman_wifi_technology_state = FALSE;
 827 }
 828
 829 void wifi_power_recover_firmware(void)
 830 {
 831         wifi_firmware_recovery_mode = TRUE;
 832
 833         netconfig_wifi_bgscan_stop();
 834
 835         wifi_power_off();
 836 }
 837
 838 int wifi_power_on(void)
 839 {
 840         int err = 0;
 841         wifi_tech_state_e tech_state;
 842
 843         tech_state = wifi_state_get_technology_state();
 844         if (tech_state >= NETCONFIG_WIFI_TECH_POWERED)
 845                 return -EALREADY;
 846
 847         if (__is_wifi_restricted() == TRUE)
 848                 return -EPERM;
 849
 850         if (netconfig_is_wifi_tethering_on() == TRUE) {
 851                 /* TODO: Wi-Fi tethering turns off here */
 852                 /* return TRUE; */
 853                 ERR("Failed to turn tethering off");
 854                 return -EBUSY;
 855         }
 856
 857 #if defined TIZEN_P2P_ENABLE && !defined WLAN_CONCURRENT_MODE
 858         if (netconfig_is_wifi_direct_on() == TRUE) {
 859                 if (__netconfig_wifi_direct_power_off() == TRUE)
 860                         return -EINPROGRESS;
 861                 else {
 862                         ERR("Failed to turn Wi-Fi direct off");
 863                         return -EBUSY;
 864                 }
 865         }
 866 #endif
 867
 868         err = wifi_power_driver_and_supplicant(TRUE);
 869         if (err < 0 && err != -EALREADY)
 870                 return err;
 871
 872         err = _set_connman_technology_power(TRUE);
 873
 874         return err;
 875 }
 876
 877 int wifi_power_off(void)
 878 {
 879         int err;
 880
 881         err = _set_connman_technology_power(FALSE);
 882         if (err == -EALREADY)
 883                 wifi_state_update_power_state(FALSE);
 884
 885         return 0;
 886 }
 887
 888 #if defined TIZEN_WEARABLE
 889 int wifi_power_on_wearable(gboolean device_picker_test)
 890 {
 891         int err = 0;
 892         int wifi_use = 1;
 893         wifi_tech_state_e tech_state;
 894
 895         tech_state = wifi_state_get_technology_state();
 896         if (tech_state >= NETCONFIG_WIFI_TECH_POWERED)
 897                 return -EALREADY;
 898
 899         if (netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use) < 0) {
 900                 ERR("Fail to get VCONF_WIFI_WEARABLE_WIFI_USE");
 901                 return -EIO;
 902         }
 903
 904         if (wifi_use == 0) {
 905                 WARN("VCONF_WIFI_WEARABLE_WIFI_USE is OFF");
 906                 return -EPERM;
 907         }
 908
 909         err = wifi_power_driver_and_supplicant(TRUE);
 910         if (err < 0 && err != -EALREADY)
 911                 return err;
 912
 913         err = _set_connman_technology_power(TRUE);
 914
 915         if (device_picker_test == TRUE)
 916                 netconfig_wifi_enable_device_picker_test();
 917
 918         return err;
 919 }
 920 #endif
 921
 922 void wifi_power_initialize(void)
 923 {
 924         int wifi_last_power_state = 0;
 925
 926         /* Initialize Airplane mode */
 927         netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_FLIGHT_MODE, &airplane_mode);
 928         DBG("Airplane[%s]", airplane_mode > 0 ? "ON" : "OFF");
 929
 930         /* Update the last Wi-Fi power state */
 931         netconfig_vconf_get_int(VCONF_WIFI_LAST_POWER_STATE, &wifi_last_power_state);
 932         if (wifi_last_power_state > VCONFKEY_WIFI_OFF) {
 933 #if defined TIZEN_TELEPHONY_ENABLE
 934                 int telephony_ready = 0;
 935                 netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_READY, &telephony_ready);
 936                 if (telephony_ready == 0) {
 937                         DBG("Telephony API is not initialized yet");
 938                         vconf_notify_key_changed(VCONFKEY_TELEPHONY_READY,
 939                                         __netconfig_telephony_ready_changed_cb, NULL);
 940                 } else {
 941                         if (netconfig_tapi_check_sim_state() == FALSE)
 942                                 DBG("SIM is not initialized yet");
 943                 }
 944 #endif
 945                 DBG("Turn Wi-Fi on automatically");
 946 #if defined TIZEN_WEARABLE
 947                 wifi_power_on_wearable(TRUE);
 948 #else
 949                 wifi_power_on();
 950 #endif
 951         }
 952
 953 #if defined TIZEN_WEARABLE
 954         vconf_notify_key_changed(VCONF_WIFI_WEARABLE_WIFI_USE, __wearable_wifi_use_changed_cb, NULL);
 955
 956         vconf_notify_key_changed(VCONFKEY_TELEPHONY_FLIGHT_MODE,
 957                         __netconfig_wifi_airplane_mode, NULL);
 958 #else
 959         vconf_notify_key_changed(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE,
 960                         __netconfig_wifi_restrict_mode, NULL);
 961         vconf_notify_key_changed(VCONFKEY_TELEPHONY_FLIGHT_MODE,
 962                         __netconfig_wifi_airplane_mode, NULL);
 963 #endif
 964
 965         vconf_notify_key_changed(VCONFKEY_SETAPPL_PSMODE, __emergency_mode_changed_cb, NULL);
 966         vconf_notify_key_changed(VCONFKEY_PM_STATE, __pm_state_changed_cb, NULL);
 967 }
 968
 969 void wifi_power_deinitialize(void)
 970 {
 971 }
 972
 973 gboolean handle_load_driver(Wifi *wifi,
 974                 GDBusMethodInvocation *context, gboolean device_picker_test)
 975 {
 976         int err;
 977
 978         DBG("Wi-Fi power on requested");
 979
 980         g_return_val_if_fail(wifi != NULL, FALSE);
 981
 982         if (!netconfig_dpm_update_from_wifi()) {
 983                 DBG("DPM policy restricts Wi-Fi");
 984                 netconfig_error_permission_denied(context);
 985                 return TRUE;
 986         }
 987
 988 #if defined TIZEN_WLAN_BOARD_SPRD
 989         wifi_firmware_download();
 990 #endif
 991
 992 #if defined TIZEN_WEARABLE
 993         err = wifi_power_on_wearable(device_picker_test);
 994 #else
 995         err = wifi_power_on();
 996
 997         if (device_picker_test == TRUE)
 998                 netconfig_wifi_enable_device_picker_test();
 999 #endif
1000         if (err < 0) {
1001                 if (err == -EINPROGRESS)
1002                         netconfig_error_inprogress(context);
1003                 else if (err == -EALREADY)
1004                         netconfig_error_already_exists(context);
1005                 else if (err == -EPERM)
1006                         netconfig_error_permission_denied(context);
1007                 else
1008                         netconfig_error_wifi_driver_failed(context);
1009
1010                 return TRUE;
1011         }
1012
1013
1014         netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
1015         __netconfig_set_wifi_bssid();
1016
1017         wifi_complete_load_driver(wifi, context);
1018         return TRUE;
1019 }
1020
1021 gboolean handle_remove_driver(Wifi *wifi, GDBusMethodInvocation *context)
1022 {
1023         int err;
1024
1025         DBG("Wi-Fi power off requested");
1026
1027         g_return_val_if_fail(wifi != NULL, FALSE);
1028
1029         err = wifi_power_off();
1030         if (err < 0) {
1031                 if (err == -EINPROGRESS)
1032                         netconfig_error_inprogress(context);
1033                 else if (err == -EALREADY)
1034                         netconfig_error_already_exists(context);
1035                 else if (err == -EPERM)
1036                         netconfig_error_permission_denied(context);
1037                 else
1038                         netconfig_error_wifi_driver_failed(context);
1039                 return TRUE;
1040         }
1041
1042         netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
1043
1044         wifi_complete_remove_driver(wifi, context);
1045         return TRUE;
1046 }
1047
1048 gboolean handle_load_p2p_driver(Wifi *wifi, GDBusMethodInvocation *context)
1049 {
1050         ERR("Deprecated");
1051
1052         wifi_complete_load_p2p_driver(wifi, context);
1053         return TRUE;
1054 }
1055
1056 gboolean handle_remove_p2p_driver(Wifi *wifi, GDBusMethodInvocation *context)
1057 {
1058         ERR("Deprecated");
1059
1060         wifi_complete_remove_p2p_driver(wifi, context);
1061         return TRUE;
1062 }
1063
1064 #if defined TIZEN_TV
1065 static int __netconfig_get_random_mac(unsigned char *mac_buf, int mac_len)
1066 {
1067         DBG("Generate Random Mac address of ethernet");
1068         FILE *fp;
1069         int rc;
1070
1071         fp = fopen(OS_RANDOM_FILE, "rb");
1072
1073         if (fp == NULL) {
1074                 ERR("Could not open /dev/urandom");
1075                 return -1;
1076         }
1077         rc = fread(mac_buf, 1, mac_len, fp);
1078         if (fp)
1079                 fclose(fp);
1080
1081         return rc != mac_len ? -1 : 0;
1082 }
1083
1084 void __netconfig_set_ether_macaddr()
1085 {
1086         DBG("Set wired Mac address ");
1087         char *mac_addr = NULL;
1088         char rand_addr[WLAN_MAC_ADDR_MAX];
1089         int rv = -1;
1090
1091         mac_addr = vconf_get_str(VCONF_ETH_MAC_ADDRESS);
1092         if (mac_addr == NULL) {
1093                 DBG("vconf_get_str Failed\n");
1094                 return;
1095         }
1096         /* Checking Invalid MAC Address */
1097         if ((strlen(mac_addr) == 0)) {
1098                 ERR("Failed to get valid MAC Address from vconf");
1099                 /*Generate the Random Mac address*/
1100                 unsigned char rand_mac_add[ETH_MAC_ADDR_SIZE+1];
1101
1102                 if (__netconfig_get_random_mac(rand_mac_add, ETH_MAC_ADDR_SIZE) == -1) {
1103
1104                         ERR("Could not generate the Random Mac address");
1105                         g_free(mac_addr);
1106                         return;
1107                 }
1108
1109                 rand_mac_add[0] &= 0xFE; /*Clear multicase bit*/
1110                 rand_mac_add[0] |= 0x02; /*set local assignment bit*/
1111
1112                 /*Set the Mac address in Vconf*/
1113                 snprintf(rand_addr, WLAN_MAC_ADDR_MAX, "%x:%x:%x:%x:%x:%x",
1114                                 rand_mac_add[0], rand_mac_add[1],
1115                                 rand_mac_add[2], rand_mac_add[3],
1116                                 rand_mac_add[4], rand_mac_add[5]);
1117
1118                 netconfig_set_vconf_str(VCONF_ETH_MAC_ADDRESS, rand_addr);
1119         } else { /* Valid MAC address */
1120                 strncpy(rand_addr, mac_addr, strlen(mac_addr));
1121                 rand_addr[strlen(mac_addr)] = '\0';
1122         }
1123
1124         DBG("MAC Address of eth0 [%s]", rand_addr);
1125         const char *path = NET_EXEC_PATH;
1126         char *const args[] = { "/sbin/ifconfig", "eth0", "hw",
1127                 "ether", rand_addr, "up", NULL};
1128         char *const envs[] = { NULL };
1129         rv = netconfig_execute_file(path, args, envs);
1130
1131         if (rv < 0)
1132                 ERR("Unable to execute system command");
1133         g_free(mac_addr);
1134
1135 }
1136 #endif