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_strcmp0(error->message, CONNMAN_ERROR_INTERFACE ".AlreadyEnabled") == 0)
 107                                 wifi_state_update_power_state(TRUE);
 108                         else if (g_strcmp0(error->message, CONNMAN_ERROR_INTERFACE ".AlreadyDisabled") == 0)
 109                                 wifi_state_update_power_state(FALSE);
 110                         else
 111                                 ERR("Fail to request status [%d: %s]", error->code, error->message);
 112                         g_error_free(error);
 113                 } else {
 114                         ERR("Fail torequest status");
 115                 }
 116         } else {
 117                 DBG("Successfully requested");
 118         }
 119
 120         g_variant_unref(reply);
 121         netconfig_gdbus_pending_call_unref();
 122 }
 123
 124 static int __execute_supplicant(gboolean enable)
 125 {
 126         int rv = 0;
 127         const char *path = WLAN_SUPPLICANT_SCRIPT;
 128         char *const args_enable[] = { "/usr/sbin/wpa_supp.sh", "start", NULL };
 129         char *const args_disable[] = { "/usr/sbin/wpa_supp.sh", "stop", NULL };
 130         char *const envs[] = { NULL };
 131         static gboolean enabled = FALSE;
 132
 133         if (enabled == enable)
 134                 return -EALREADY;
 135
 136         if (enable == TRUE)
 137                 rv = netconfig_execute_file(path, args_enable, envs);
 138         else
 139                 rv = netconfig_execute_file(path, args_disable, envs);
 140         if (rv < 0)
 141                 return -EIO;
 142
 143         DBG("wpa_supplicant %s", enable == TRUE ? "started" : "stopped");
 144
 145         enabled = enable;
 146
 147         return 0;
 148 }
 149
 150 #if defined TIZEN_P2P_ENABLE && defined WLAN_CONCURRENT_MODE
 151 static int __netconfig_p2p_supplicant(gboolean enable)
 152 {
 153         int rv = 0;
 154         const char *path = P2P_SUPPLICANT_SCRIPT;
 155         char *const args_enable[] = { P2P_SUPPLICANT_SCRIPT, "start", NULL };
 156         char *const args_disable[] = { P2P_SUPPLICANT_SCRIPT, "stop", NULL };
 157         char *const envs[] = { NULL };
 158
 159         if (enable == TRUE)
 160                 rv = netconfig_execute_file(path, args_enable, envs);
 161         else
 162                 rv = netconfig_execute_file(path, args_disable, envs);
 163         if (rv < 0)
 164                 return -EIO;
 165
 166         DBG("p2p_supplicant %s", enable == TRUE ? "started" : "stopped");
 167
 168         return 0;
 169 }
 170 #endif
 171
 172 void netconfig_wifi_recover_firmware(void)
 173 {
 174         wifi_firmware_recovery_mode = TRUE;
 175
 176         netconfig_wifi_bgscan_stop();
 177
 178         wifi_power_off();
 179 }
 180
 181 #if defined TIZEN_P2P_ENABLE && !defined WLAN_CONCURRENT_MODE
 182 static void __netconfig_wifi_direct_state_cb(int error_code, wifi_direct_device_state_e device_state, void *user_data)
 183 {
 184         int err;
 185
 186         wifi_direct_unset_device_state_changed_cb();
 187         wifi_direct_deinitialize();
 188
 189         if (device_state == WIFI_DIRECT_DEVICE_STATE_DEACTIVATED) {
 190                 err = wifi_power_on();
 191                 if (err < 0) {
 192                         if (err == -EALREADY)
 193                                 wifi_state_update_power_state(TRUE);
 194                         else
 195                                 wifi_state_emit_power_failed();
 196                 }
 197         }
 198 }
 199
 200 static gboolean __netconfig_wifi_direct_power_off(void)
 201 {
 202         DBG("Wi-Fi direct is turning off");
 203
 204         if (wifi_direct_initialize() < 0)
 205                 return FALSE;
 206
 207         if (wifi_direct_set_device_state_changed_cb(__netconfig_wifi_direct_state_cb, NULL) < 0)
 208                 return FALSE;
 209
 210         if (wifi_direct_deactivate() < 0)
 211                 return FALSE;
 212
 213         return TRUE;
 214 }
 215 #endif
 216
 217 static int _load_driver_and_supplicant(void)
 218 {
 219         int err = 0;
 220         wifi_tech_state_e tech_state;
 221
 222         tech_state = wifi_state_get_technology_state();
 223         if (tech_state > NETCONFIG_WIFI_TECH_OFF)
 224                 return -EALREADY;
 225
 226         err = __execute_supplicant(TRUE);
 227         if (err < 0 && err != -EALREADY)
 228                 return err;
 229
 230         err = netconfig_wifi_firmware(NETCONFIG_WIFI_STA, TRUE);
 231         if (err < 0 && err != -EALREADY) {
 232                 __execute_supplicant(FALSE);
 233                 return err;
 234         }
 235
 236         wifi_state_set_tech_state(NETCONFIG_WIFI_TECH_WPS_ONLY);
 237
 238         return 0;
 239 }
 240
 241 static int _remove_driver_and_supplicant(void)
 242 {
 243         int err = 0;
 244
 245         if (wifi_firmware_recovery_mode != TRUE &&
 246                                         netconfig_wifi_is_wps_enabled() == TRUE) {
 247                 DBG("Wi-Fi WPS mode");
 248                 return 0;
 249         }
 250
 251         err = netconfig_wifi_firmware(NETCONFIG_WIFI_STA, FALSE);
 252         if (err < 0 && err != -EALREADY)
 253                 return err;
 254
 255         err = __execute_supplicant(FALSE);
 256         if (err < 0 && err != -EALREADY)
 257                 return err;
 258
 259         wifi_state_set_tech_state(NETCONFIG_WIFI_TECH_OFF);
 260
 261         if (wifi_firmware_recovery_mode == TRUE) {
 262                 if (wifi_power_on() < 0)
 263                         ERR("Failed to recover Wi-Fi firmware");
 264
 265                 wifi_firmware_recovery_mode = FALSE;
 266         }
 267
 268         return 0;
 269 }
 270
 271 static int _set_connman_technology_power(gboolean enable)
 272 {
 273         gboolean reply = FALSE;
 274         GVariant *param0 = NULL;
 275         GVariant *params = NULL;
 276         char key[] = "Powered";
 277         gboolean value_enable = TRUE;
 278         gboolean value_disable = FALSE;
 279
 280         if (connman_wifi_technology_state == enable)
 281                 return -EALREADY;
 282
 283         if (enable == TRUE)
 284                 param0 = g_variant_new_boolean(value_enable);
 285         else
 286                 param0 = g_variant_new_boolean(value_disable);
 287
 288         params = g_variant_new("(sv)", key, param0);
 289
 290         reply = netconfig_invoke_dbus_method_nonblock(CONNMAN_SERVICE,
 291                         CONNMAN_WIFI_TECHNOLOGY_PREFIX, CONNMAN_TECHNOLOGY_INTERFACE,
 292                         "SetProperty", params, __technology_reply);
 293
 294         if (reply != TRUE) {
 295                 ERR("Fail to set technology %s", enable == TRUE ? "enable" : "disable");
 296                 return -ESRCH;
 297         }
 298
 299         /* If Wi-Fi powered off,
 300          * Do not remove Wi-Fi driver until ConnMan technology state updated
 301          */
 302         if (enable == TRUE)
 303                 connman_wifi_technology_state = enable;
 304
 305         /* To be keep safe, early disable Wi-Fi tech state */
 306         if (enable != TRUE)
 307                 wifi_state_set_tech_state(NETCONFIG_WIFI_TECH_WPS_ONLY);
 308
 309         return 0;
 310 }
 311
 312 static void __netconfig_set_wifi_bssid(void)
 313 {
 314         int rv = 0;
 315         char bssid[WLAN_MAC_ADDR_MAX];
 316
 317         FILE *fp = fopen(WLAN_MAC_INFO, "r");
 318
 319         if (fp == NULL) {
 320                 ERR("Fail to open file");
 321                 return;
 322         }
 323
 324         fseek(fp, 0L, SEEK_SET);
 325         rv = fscanf(fp, "%17s", bssid);
 326
 327         if (rv < 0)
 328                 ERR("Fail to read bssid");
 329
 330         netconfig_set_vconf_str(VCONF_WIFI_BSSID_ADDRESS, bssid);
 331
 332         fclose(fp);
 333 }
 334
 335 int netconfig_wifi_driver_and_supplicant(gboolean enable)
 336 {
 337         /* There are 3 thumb rules for Wi-Fi power management
 338          *   1. Do not make exposed API to control wpa_supplicant and driver directly.
 339          *      It probably breaks ConnMan technology operation.
 340          *
 341          *   2. Do not remove driver and wpa_supplicant if ConnMan already enabled.
 342          *      It breaks ConnMan technology operation.
 343          *
 344          *   3. Final the best rule: make it as simple as possible.
 345          *      Simple code enables easy maintenance and reduces logical errors.
 346          */
 347         if (enable == TRUE)
 348                 return _load_driver_and_supplicant();
 349         else {
 350                 if (connman_wifi_technology_state == TRUE)
 351                         return -ENOSYS;
 352
 353                 return _load_driver_and_supplicant();
 354         }
 355 }
 356
 357 void netconfig_wifi_disable_technology_state_by_only_connman_signal(void)
 358 {
 359         /* Important: it's only done by ConnMan technology signal update */
 360         connman_wifi_technology_state = FALSE;
 361 }
 362
 363 int netconfig_wifi_on(void)
 364 {
 365         int err = 0;
 366         wifi_tech_state_e wifi_tech_state;
 367
 368         wifi_tech_state = wifi_state_get_technology_state();
 369         if (wifi_tech_state >= NETCONFIG_WIFI_TECH_POWERED)
 370                 return -EALREADY;
 371
 372         if (__is_wifi_restricted() == TRUE)
 373                 return -EPERM;
 374
 375         if (netconfig_is_wifi_tethering_on() == TRUE) {
 376                 /* TODO: Wi-Fi tethering turns off here */
 377                 /* return TRUE; */
 378                 ERR("Failed to turn tethering off");
 379                 return -EBUSY;
 380         }
 381
 382 #if defined TIZEN_P2P_ENABLE && !defined WLAN_CONCURRENT_MODE
 383         if (netconfig_is_wifi_direct_on() == TRUE) {
 384                 if (__netconfig_wifi_direct_power_off() == TRUE)
 385                         return -EINPROGRESS;
 386                 else {
 387                         ERR("Failed to turn Wi-Fi direct off");
 388                         return -EBUSY;
 389                 }
 390         }
 391 #endif
 392
 393         err = wifi_power_driver_and_supplicant(TRUE);
 394         if (err < 0 && err != -EALREADY)
 395                 return err;
 396
 397         err = _set_connman_technology_power(TRUE);
 398
 399         __netconfig_set_wifi_bssid();
 400
 401         return err;
 402 }
 403
 404 int netconfig_wifi_off(void)
 405 {
 406         int err;
 407
 408 #if defined TIZEN_P2P_ENABLE && defined WLAN_CONCURRENT_MODE
 409         __netconfig_p2p_supplicant(FALSE);
 410 #endif
 411
 412         err = _set_connman_technology_power(FALSE);
 413         if (err == -EALREADY)
 414                 wifi_state_update_power_state(FALSE);
 415
 416         return 0;
 417 }
 418
 419 #if defined TIZEN_WEARABLE
 420 int netconfig_wifi_on_wearable(gboolean device_picker_test)
 421 {
 422         int err = 0;
 423         int wifi_use;
 424         int ps_mode;
 425
 426         if (netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use) < 0) {
 427                 ERR("Fail to get VCONF_WIFI_WEARABLE_WIFI_USE");
 428                 return -EIO;
 429         }
 430
 431         if (wifi_use > 0) {
 432                 if (netconfig_vconf_get_int(VCONFKEY_SETAPPL_PSMODE, &ps_mode) < 0) {
 433                         ERR("Fail to get VCONFKEY_SETAPPL_PSMODE");
 434                         return -EIO;
 435                 }
 436
 437                 if (ps_mode > SETTING_PSMODE_NORMAL) {
 438                         WARN("ps mode is on(%d), Not turn on Wi-Fi", ps_mode);
 439                         return -EPERM;
 440                 }
 441         } else {
 442                 WARN("Not permitted Wi-Fi on");
 443                 return -EPERM;
 444         }
 445
 446         err = wifi_power_driver_and_supplicant(TRUE);
 447         if (err < 0 && err != -EALREADY)
 448                 return err;
 449
 450         err = _set_connman_technology_power(TRUE);
 451
 452         if (device_picker_test == TRUE)
 453                 netconfig_wifi_enable_device_picker_test();
 454
 455         return err;
 456 }
 457
 458 static void __wearable_wifi_use_changed_cb(keynode_t* node, void* user_data)
 459 {
 460         int wifi_state;
 461         int wifi_use = 1;
 462
 463         if (netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state) < 0) {
 464                 ERR("Fail to get VCONFKEY_WIFI_STATE");
 465                 return;
 466         }
 467
 468         if (node != NULL)
 469                 wifi_use = vconf_keynode_get_int(node);
 470         else
 471                 netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use);
 472
 473         if (wifi_use > 0) {
 474                 DBG("wifi use on");
 475                 if (wifi_state > VCONFKEY_WIFI_OFF) {
 476                         WARN("Wi-Fi is already turned on");
 477                         return;
 478                 }
 479                 wifi_power_on_wearable(TRUE);
 480         } else {
 481                 ERR("## wifi use [OFF]");
 482                 if (wifi_state == VCONFKEY_WIFI_OFF) {
 483                         WARN("Wi-Fi is already turned off");
 484                         return;
 485                 }
 486
 487                 wifi_power_off();
 488         }
 489 }
 490 #else
 491 static void __netconfig_wifi_restrict_mode(keynode_t *node, void *user_data)
 492 {
 493         int wifi_state = 0, restricted = 0;
 494         int wifi_off_by_restricted = 0;
 495
 496         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, &wifi_off_by_restricted);
 497
 498         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 499
 500         if (node != NULL)
 501                 restricted = vconf_keynode_get_bool(node);
 502         else
 503                 netconfig_vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE, &restricted);
 504
 505         DBG("network restricted mode %s", restricted > 0 ? "ON" : "OFF");
 506         DBG("Wi-Fi state %d, Wi-Fi was off by restricted mode %s", wifi_state,
 507                         wifi_off_by_restricted ? "Yes" : "No");
 508
 509         if (restricted > 0) {
 510                 /* network restricted on */
 511                 if (wifi_state == VCONFKEY_WIFI_OFF)
 512                         return;
 513
 514                 wifi_power_off();
 515
 516                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, 1);
 517         } else {
 518                 /* network restricted off */
 519                 if (!wifi_off_by_restricted)
 520                         return;
 521
 522                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, 0);
 523
 524                 if (wifi_state > VCONFKEY_WIFI_OFF)
 525                         return;
 526
 527                 wifi_power_on();
 528         }
 529 }
 530 #endif
 531
 532 static void __netconfig_wifi_airplane_mode(keynode_t *node, void *user_data)
 533 {
 534         int wifi_state = 0, airplane_state = 0;
 535         int wifi_off_by_airplane = 0;
 536
 537         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, &wifi_off_by_airplane);
 538
 539 #if defined TIZEN_WEARABLE
 540         netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_state)
 541 #else
 542         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 543 #endif
 544
 545         if (node != NULL)
 546                 airplane_state = vconf_keynode_get_bool(node);
 547         else
 548                 netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_FLIGHT_MODE, &airplane_state);
 549
 550         DBG("airplane mode %s (prev:%d)", airplane_state > 0 ? "ON" : "OFF", airplane_mode);
 551         DBG("Wi-Fi state(or use) %d, Wi-Fi was off by flight mode %s", wifi_state,
 552                         wifi_off_by_airplane ? "Yes" : "No");
 553
 554         if (airplane_mode == airplane_state)
 555                 return ;
 556
 557         airplane_mode = airplane_state;
 558
 559         if (airplane_state > 0) {
 560                 /* airplane mode on */
 561                 if (wifi_state == VCONFKEY_WIFI_OFF)
 562                         return;
 563
 564                 wifi_power_off();
 565
 566                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 1);
 567 #if defined TIZEN_WEARABLE
 568                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 0);
 569 #endif
 570         } else {
 571                 /* airplane mode off */
 572                 if (!wifi_off_by_airplane)
 573                         return;
 574
 575                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
 576 #if defined TIZEN_WEARABLE
 577                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 1);
 578 #else
 579                 if (wifi_state > VCONFKEY_WIFI_OFF)
 580                         return;
 581
 582                 wifi_power_on();
 583 #endif
 584         }
 585 }
 586
 587 static void __emergency_mode_changed_cb(keynode_t *node, void *user_data)
 588 {
 589         int wifi_state = 0, emergency = 0;
 590         int wifi_off_by_emergency = 0;
 591 #if !defined TIZEN_WEARABLE
 592         int emergency_by_fmm = 0;
 593 #endif
 594 #if defined TIZEN_WEARABLE
 595         int wifi_use = 1;
 596 #endif
 597
 598         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, &wifi_off_by_emergency);
 599         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 600
 601 #if !defined TIZEN_WEARABLE
 602         netconfig_vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_PERMIT_WITH_LCD_OFF_LIMIT, &emergency_by_fmm);
 603         DBG("emergency mode by Find My Mobile (%d)", emergency_by_fmm);
 604         if (emergency_by_fmm == 1)
 605                 return;
 606 #endif
 607
 608         if (node != NULL)
 609                 emergency = vconf_keynode_get_int(node);
 610         else
 611                 netconfig_vconf_get_int(VCONFKEY_SETAPPL_PSMODE, &emergency);
 612
 613         DBG("emergency mode %s", emergency > SETTING_PSMODE_POWERFUL ? "ON" : "OFF");
 614         DBG("Wi-Fi state %d, Wi-Fi was off by emergency mode %s", wifi_state, wifi_off_by_emergency ? "Yes" : "No");
 615
 616 #if defined TIZEN_WEARABLE
 617         if (emergency == SETTING_PSMODE_WEARABLE) {
 618                 /* basic power saving mode on */
 619         } else if (emergency == SETTING_PSMODE_WEARABLE_ENHANCED) {
 620                 /* enhanced power saving mode on */
 621                 netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use);
 622                 psmode_wifi_use = wifi_use;
 623                 if (wifi_use != 0)
 624                         netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 0);
 625
 626                 if (wifi_state == VCONFKEY_WIFI_OFF)
 627                         return;
 628
 629                 wifi_power_off();
 630                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 1);
 631         } else {
 632                 /* power saving mode off */
 633                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, psmode_wifi_use);
 634                 if (!wifi_off_by_emergency)
 635                         return;
 636
 637                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 0);
 638                 if (wifi_state > VCONFKEY_WIFI_OFF)
 639                         return;
 640
 641                 wifi_power_on_wearable(TRUE);
 642         }
 643 #else
 644         if (emergency > SETTING_PSMODE_POWERFUL) {
 645                 /* emergency mode on */
 646                 if (wifi_state == VCONFKEY_WIFI_OFF)
 647                         return;
 648
 649                 wifi_power_off();
 650
 651                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 1);
 652         } else {
 653                 /* emergency mode off */
 654                 if (!wifi_off_by_emergency)
 655                         return;
 656
 657                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 0);
 658
 659                 if (wifi_state > VCONFKEY_WIFI_OFF)
 660                         return;
 661
 662                 wifi_power_on();
 663         }
 664 #endif
 665
 666 }
 667
 668 static void __pm_state_changed_cb(keynode_t* node, void* user_data)
 669 {
 670         int new_state = -1;
 671         int wifi_state = 0;
 672         static int prev_state = VCONFKEY_PM_STATE_NORMAL;
 673
 674         if (netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state) < 0) {
 675                 ERR("Fail to get VCONFKEY_WIFI_STATE");
 676                 return;
 677         }
 678
 679         /* PM state
 680          *      VCONFKEY_PM_STATE_NORMAL = 1,
 681          *      VCONFKEY_PM_STATE_LCDDIM,
 682          *      VCONFKEY_PM_STATE_LCDOFF,
 683          *      VCONFKEY_PM_STATE_SLEEP
 684          */
 685         if (node != NULL)
 686                 new_state = vconf_keynode_get_int(node);
 687         else
 688                 netconfig_vconf_get_int(VCONFKEY_PM_STATE, &new_state);
 689
 690         DBG("wifi state: %d (0 off / 1 on / 2 connected)", wifi_state);
 691         DBG("Old PM state: %d, current: %d", prev_state, new_state);
 692
 693         if ((new_state == VCONFKEY_PM_STATE_NORMAL) && (prev_state >= VCONFKEY_PM_STATE_LCDOFF)) {
 694                 netconfig_wifi_bgscan_stop();
 695                 netconfig_wifi_bgscan_start(TRUE);
 696         }
 697
 698         prev_state = new_state;
 699 }
 700
 701 #if defined TIZEN_TELEPHONY_ENABLE
 702 static void _tapi_noti_sim_status_cb(TapiHandle *handle, const char *noti_id,
 703                                                                                 void *data, void *user_data)
 704 {
 705         TelSimCardStatus_t *status = data;
 706
 707         if (*status == TAPI_SIM_STATUS_SIM_INIT_COMPLETED) {
 708                 DBG("Turn Wi-Fi on automatically");
 709 #if defined TIZEN_WEARABLE
 710                 wifi_power_on_wearable(TRUE);
 711 #else
 712                 wifi_power_on();
 713 #endif
 714                 netconfig_tel_deinit();
 715         }
 716 }
 717
 718 static gboolean netconfig_tapi_check_sim_state(void)
 719 {
 720         int ret, card_changed;
 721         TelSimCardStatus_t status = TAPI_SIM_STATUS_UNKNOWN;
 722         TapiHandle *tapi_handle = NULL;
 723
 724         tapi_handle = (TapiHandle *)netconfig_tel_init();
 725         if (tapi_handle == NULL) {
 726                 ERR("Failed to tapi init");
 727                 return FALSE;
 728         }
 729
 730         ret = tel_get_sim_init_info(tapi_handle, &status, &card_changed);
 731         if (ret != TAPI_API_SUCCESS) {
 732                 ERR("tel_get_sim_init_info() Failed : [%d]", ret);
 733                 netconfig_tel_deinit();
 734                 return FALSE;
 735         }
 736
 737         switch (status) {
 738         case TAPI_SIM_STATUS_UNKNOWN:
 739         case TAPI_SIM_STATUS_CARD_ERROR:
 740         case TAPI_SIM_STATUS_CARD_NOT_PRESENT:
 741         case TAPI_SIM_STATUS_CARD_BLOCKED:
 742         case TAPI_SIM_STATUS_SIM_INIT_COMPLETED:
 743                 break;
 744         case TAPI_SIM_STATUS_SIM_PIN_REQUIRED:
 745         case TAPI_SIM_STATUS_SIM_INITIALIZING:
 746         case TAPI_SIM_STATUS_SIM_PUK_REQUIRED:
 747         case TAPI_SIM_STATUS_SIM_LOCK_REQUIRED:
 748         case TAPI_SIM_STATUS_SIM_NCK_REQUIRED:
 749         case TAPI_SIM_STATUS_SIM_NSCK_REQUIRED:
 750         case TAPI_SIM_STATUS_SIM_SPCK_REQUIRED:
 751         case TAPI_SIM_STATUS_SIM_CCK_REQUIRED:
 752                 tel_register_noti_event(tapi_handle, TAPI_NOTI_SIM_STATUS,
 753                                 _tapi_noti_sim_status_cb, NULL);
 754                 return FALSE;
 755         default:
 756                 ERR("not defined status(%d)", status);
 757                 break;
 758         }
 759
 760         netconfig_tel_deinit();
 761
 762         return TRUE;
 763 }
 764
 765 static void __netconfig_telephony_ready_changed_cb(keynode_t * node, void *data)
 766 {
 767         int telephony_ready = 0;
 768
 769         if (node != NULL)
 770                 telephony_ready = vconf_keynode_get_bool(node);
 771         else
 772                 netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_READY, &telephony_ready);
 773
 774         if (telephony_ready != 0) {
 775                 if (netconfig_tapi_check_sim_state() == FALSE) {
 776                         DBG("Sim is not initialized yet.");
 777
 778                         goto done;
 779                 }
 780         } else
 781                 return;
 782
 783         DBG("Turn Wi-Fi on automatically");
 784
 785 #if defined TIZEN_WEARABLE
 786         wifi_power_on_wearable(TRUE);
 787 #else
 788         wifi_power_on();
 789 #endif
 790
 791 done:
 792         vconf_ignore_key_changed(VCONFKEY_TELEPHONY_READY, __netconfig_telephony_ready_changed_cb);
 793 }
 794 #endif
 795
 796 int wifi_power_driver_and_supplicant(gboolean enable)
 797 {
 798         /* There are 3 thumb rules for Wi-Fi power management
 799          *   1. Do not make exposed API to control wpa_supplicant and driver directly.
 800          *      It probably breaks ConnMan technology operation.
 801          *
 802          *   2. Do not remove driver and wpa_supplicant if ConnMan already enabled.
 803          *      It breaks ConnMan technology operation.
 804          *
 805          *   3. Final the best rule: make it as simple as possible.
 806          *      Simple code enables easy maintenance and reduces logical errors.
 807          */
 808         if (enable == TRUE) {
 809                 return _load_driver_and_supplicant();
 810         } else {
 811                 if (connman_wifi_technology_state == TRUE)
 812                         return -ENOSYS;
 813
 814                 return _remove_driver_and_supplicant();
 815         }
 816 }
 817
 818 void wifi_power_disable_technology_state_by_only_connman_signal(void)
 819 {
 820         /* Important: it's only done by ConnMan technology signal update */
 821         connman_wifi_technology_state = FALSE;
 822 }
 823
 824 void wifi_power_recover_firmware(void)
 825 {
 826         wifi_firmware_recovery_mode = TRUE;
 827
 828         netconfig_wifi_bgscan_stop();
 829
 830         wifi_power_off();
 831 }
 832
 833 int wifi_power_on(void)
 834 {
 835         int err = 0;
 836         wifi_tech_state_e tech_state;
 837
 838         tech_state = wifi_state_get_technology_state();
 839         if (tech_state >= NETCONFIG_WIFI_TECH_POWERED)
 840                 return -EALREADY;
 841
 842         if (__is_wifi_restricted() == TRUE)
 843                 return -EPERM;
 844
 845         if (netconfig_is_wifi_tethering_on() == TRUE) {
 846                 /* TODO: Wi-Fi tethering turns off here */
 847                 /* return TRUE; */
 848                 ERR("Failed to turn tethering off");
 849                 return -EBUSY;
 850         }
 851
 852 #if defined TIZEN_P2P_ENABLE && !defined WLAN_CONCURRENT_MODE
 853         if (netconfig_is_wifi_direct_on() == TRUE) {
 854                 if (__netconfig_wifi_direct_power_off() == TRUE)
 855                         return -EINPROGRESS;
 856                 else {
 857                         ERR("Failed to turn Wi-Fi direct off");
 858                         return -EBUSY;
 859                 }
 860         }
 861 #endif
 862
 863         err = wifi_power_driver_and_supplicant(TRUE);
 864         if (err < 0 && err != -EALREADY)
 865                 return err;
 866
 867         err = _set_connman_technology_power(TRUE);
 868
 869         return err;
 870 }
 871
 872 int wifi_power_off(void)
 873 {
 874         int err;
 875
 876         err = _set_connman_technology_power(FALSE);
 877         if (err == -EALREADY)
 878                 wifi_state_update_power_state(FALSE);
 879
 880         return 0;
 881 }
 882
 883 #if defined TIZEN_WEARABLE
 884 int wifi_power_on_wearable(gboolean device_picker_test)
 885 {
 886         int err = 0;
 887         int wifi_use = 1;
 888         wifi_tech_state_e tech_state;
 889
 890         tech_state = wifi_state_get_technology_state();
 891         if (tech_state >= NETCONFIG_WIFI_TECH_POWERED)
 892                 return -EALREADY;
 893
 894         if (netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use) < 0) {
 895                 ERR("Fail to get VCONF_WIFI_WEARABLE_WIFI_USE");
 896                 return -EIO;
 897         }
 898
 899         if (wifi_use == 0) {
 900                 WARN("VCONF_WIFI_WEARABLE_WIFI_USE is OFF");
 901                 return -EPERM;
 902         }
 903
 904         err = wifi_power_driver_and_supplicant(TRUE);
 905         if (err < 0 && err != -EALREADY)
 906                 return err;
 907
 908         err = _set_connman_technology_power(TRUE);
 909
 910         if (device_picker_test == TRUE)
 911                 netconfig_wifi_enable_device_picker_test();
 912
 913         return err;
 914 }
 915 #endif
 916
 917 void wifi_power_initialize(void)
 918 {
 919         int wifi_last_power_state = 0;
 920
 921         /* Initialize Airplane mode */
 922         netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_FLIGHT_MODE, &airplane_mode);
 923         DBG("Airplane[%s]", airplane_mode > 0 ? "ON" : "OFF");
 924
 925         /* Update the last Wi-Fi power state */
 926         netconfig_vconf_get_int(VCONF_WIFI_LAST_POWER_STATE, &wifi_last_power_state);
 927         if (wifi_last_power_state > VCONFKEY_WIFI_OFF) {
 928 #if defined TIZEN_TELEPHONY_ENABLE
 929                 int telephony_ready = 0;
 930                 netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_READY, &telephony_ready);
 931                 if (telephony_ready == 0) {
 932                         DBG("Telephony API is not initialized yet");
 933                         vconf_notify_key_changed(VCONFKEY_TELEPHONY_READY,
 934                                         __netconfig_telephony_ready_changed_cb, NULL);
 935                 } else {
 936                         if (netconfig_tapi_check_sim_state() == FALSE)
 937                                 DBG("SIM is not initialized yet");
 938                 }
 939 #endif
 940                 DBG("Turn Wi-Fi on automatically");
 941 #if defined TIZEN_WEARABLE
 942                 wifi_power_on_wearable(TRUE);
 943 #else
 944                 wifi_power_on();
 945 #endif
 946         }
 947
 948 #if defined TIZEN_WEARABLE
 949         vconf_notify_key_changed(VCONF_WIFI_WEARABLE_WIFI_USE, __wearable_wifi_use_changed_cb, NULL);
 950
 951         vconf_notify_key_changed(VCONFKEY_TELEPHONY_FLIGHT_MODE,
 952                         __netconfig_wifi_airplane_mode, NULL);
 953 #else
 954         vconf_notify_key_changed(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE,
 955                         __netconfig_wifi_restrict_mode, NULL);
 956         vconf_notify_key_changed(VCONFKEY_TELEPHONY_FLIGHT_MODE,
 957                         __netconfig_wifi_airplane_mode, NULL);
 958 #endif
 959
 960         vconf_notify_key_changed(VCONFKEY_SETAPPL_PSMODE, __emergency_mode_changed_cb, NULL);
 961         vconf_notify_key_changed(VCONFKEY_PM_STATE, __pm_state_changed_cb, NULL);
 962 }
 963
 964 void wifi_power_deinitialize(void)
 965 {
 966 }
 967
 968 gboolean handle_load_driver(Wifi *wifi,
 969                 GDBusMethodInvocation *context, gboolean device_picker_test)
 970 {
 971         int err;
 972
 973         DBG("Wi-Fi power on requested");
 974
 975         g_return_val_if_fail(wifi != NULL, FALSE);
 976
 977         if (!netconfig_dpm_update_from_wifi()) {
 978                 DBG("DPM policy restricts Wi-Fi");
 979                 netconfig_error_permission_denied(context);
 980                 return TRUE;
 981         }
 982
 983 #if defined TIZEN_WLAN_BOARD_SPRD
 984         wifi_firmware_download();
 985 #endif
 986
 987 #if defined TIZEN_WEARABLE
 988         err = wifi_power_on_wearable(device_picker_test);
 989 #else
 990         err = wifi_power_on();
 991
 992         if (device_picker_test == TRUE)
 993                 netconfig_wifi_enable_device_picker_test();
 994 #endif
 995         if (err < 0) {
 996                 if (err == -EINPROGRESS)
 997                         netconfig_error_inprogress(context);
 998                 else if (err == -EALREADY)
 999                         netconfig_error_already_exists(context);
1000                 else if (err == -EPERM)
1001                         netconfig_error_permission_denied(context);
1002                 else
1003                         netconfig_error_wifi_driver_failed(context);
1004
1005                 return TRUE;
1006         }
1007
1008
1009         netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
1010         __netconfig_set_wifi_bssid();
1011
1012         wifi_complete_load_driver(wifi, context);
1013         return TRUE;
1014 }
1015
1016 gboolean handle_remove_driver(Wifi *wifi, GDBusMethodInvocation *context)
1017 {
1018         int err;
1019
1020         DBG("Wi-Fi power off requested");
1021
1022         g_return_val_if_fail(wifi != NULL, FALSE);
1023
1024         err = wifi_power_off();
1025         if (err < 0) {
1026                 if (err == -EINPROGRESS)
1027                         netconfig_error_inprogress(context);
1028                 else if (err == -EALREADY)
1029                         netconfig_error_already_exists(context);
1030                 else if (err == -EPERM)
1031                         netconfig_error_permission_denied(context);
1032                 else
1033                         netconfig_error_wifi_driver_failed(context);
1034                 return TRUE;
1035         }
1036
1037         netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
1038
1039         wifi_complete_remove_driver(wifi, context);
1040         return TRUE;
1041 }
1042
1043 gboolean handle_load_p2p_driver(Wifi *wifi, GDBusMethodInvocation *context)
1044 {
1045         ERR("Deprecated");
1046
1047         wifi_complete_load_p2p_driver(wifi, context);
1048         return TRUE;
1049 }
1050
1051 gboolean handle_remove_p2p_driver(Wifi *wifi, GDBusMethodInvocation *context)
1052 {
1053         ERR("Deprecated");
1054
1055         wifi_complete_remove_p2p_driver(wifi, context);
1056         return TRUE;
1057 }
1058
1059 #if defined TIZEN_TV
1060 static int __netconfig_get_random_mac(unsigned char *mac_buf, int mac_len)
1061 {
1062         DBG("Generate Random Mac address of ethernet");
1063         FILE *fp;
1064         int rc;
1065
1066         fp = fopen(OS_RANDOM_FILE, "rb");
1067
1068         if (fp == NULL) {
1069                 ERR("Could not open /dev/urandom");
1070                 return -1;
1071         }
1072         rc = fread(mac_buf, 1, mac_len, fp);
1073         if (fp)
1074                 fclose(fp);
1075
1076         return rc != mac_len ? -1 : 0;
1077 }
1078
1079 void __netconfig_set_ether_macaddr()
1080 {
1081
1082         DBG("Set wired Mac address ");
1083         char *mac_addr = NULL;
1084         int rv = -1;
1085
1086         mac_addr = vconf_get_str(VCONF_ETH_MAC_ADDRESS);
1087         if (mac_addr == NULL) {
1088                 DBG("vconf_get_str Failed\n");
1089                 return;
1090         }
1091         /* Checking Invalid MAC Address */
1092         if ((strlen(mac_addr) == 0)) {
1093                 ERR("Failed to get valid MAC Address from vconf");
1094                 /*Generate the Random Mac address*/
1095                 unsigned char rand_mac_add[ETH_MAC_ADDR_SIZE+1];
1096
1097                 if (__netconfig_get_random_mac(rand_mac_add, ETH_MAC_ADDR_SIZE == -1)) {
1098
1099                         ERR("Could not generate the Random Mac address");
1100                         g_free(mac_addr);
1101                         return;
1102                 }
1103
1104                 rand_mac_add[0] &= 0xFE; /*Clear multicase bit*/
1105                 rand_mac_add[0] |= 0x02; /*set local assignment bit*/
1106
1107                 /*Set the Mac address in Vconf*/
1108                 snprintf(mac_addr, WLAN_MAC_ADDR_MAX, "%x:%x:%x:%x:%x:%x",
1109                                 rand_mac_add[0], rand_mac_add[1],
1110                                 rand_mac_add[2], rand_mac_add[3],
1111                                 rand_mac_add[4], rand_mac_add[5]);
1112
1113                 netconfig_set_vconf_str(VCONF_ETH_MAC_ADDRESS, mac_addr);
1114         }
1115
1116         DBG("MAC Address of eth0 [%s]", mac_addr);
1117         const char *path = NET_EXEC_PATH;
1118         char *const args[] = { "/sbin/ifconfig", "eth0", "hw",
1119                 "ether", mac_addr, "up", NULL};
1120         char *const envs[] = { NULL };
1121         rv = netconfig_execute_file(path, args, envs);
1122
1123         if (rv < 0)
1124                 ERR("Unable to execute system command");
1125         g_free(mac_addr);
1126
1127 }
1128 #endif