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 <stdio.h>
  24 #include <stdlib.h>
  25 #include <glib.h>
  26 #include <tzplatform_config.h>
  27
  28 #include "log.h"
  29 #include "util.h"
  30 #include "netdbus.h"
  31 #include "neterror.h"
  32 #include "wifi-wps.h"
  33 #include "wifi-power.h"
  34 #include "wifi-state.h"
  35 #include "netsupplicant.h"
  36 #include "network-state.h"
  37 #include "network-dpm.h"
  38 #include "wifi-firmware.h"
  39 #include "wifi-background-scan.h"
  40
  41
  42 #define WLAN_SUPPLICANT_SCRIPT          "/usr/bin/wpa_supp.sh"
  43 #define P2P_SUPPLICANT_SCRIPT           "/usr/bin/p2p_supp.sh"
  44
  45 #define VCONF_WIFI_OFF_STATE_BY_AIRPLANE        "file/private/wifi/wifi_off_by_airplane"
  46 #define VCONF_WIFI_OFF_STATE_BY_RESTRICTED      "file/private/wifi/wifi_off_by_restricted"
  47 #define VCONF_WIFI_OFF_STATE_BY_EMERGENCY       "file/private/wifi/wifi_off_by_emergency"
  48 #if defined TIZEN_WEARABLE
  49 #define VCONF_WIFI_WEARABLE_WIFI_USE                    "db/private/wifi/wearable_wifi_use"
  50 #endif
  51 #if !defined TIZEN_WEARABLE
  52 #define VCONFKEY_SETAPPL_NETWORK_PERMIT_WITH_LCD_OFF_LIMIT      "db/setting/network_with_lcd_off_limit"
  53 #endif
  54
  55 #define WLAN_MAC_ADDRESS_FILEPATH   "/sys/class/net/wlan0/address"
  56 #define WLAN_MAC_ADDR_MAX           20
  57 #define VCONF_WIFI_BSSID_ADDRESS        "db/wifi/bssid_address"
  58
  59 #define ETH_MAC_ADDR_SIZE 6
  60 #define VCONF_ETH_MAC_ADDRESS  "db/dnet/mac_address"
  61 #define NET_EXEC_PATH "/sbin/ifconfig"
  62 #define OS_RANDOM_FILE "/dev/urandom"
  63
  64 static gboolean connman_wifi_technology_state = FALSE;
  65 static gboolean wifi_firmware_recovery_mode = FALSE;
  66 static int airplane_mode = 0;
  67
  68 #if defined TIZEN_WEARABLE
  69 static int psmode_wifi_use = 1;
  70 #endif
  71
  72 static gboolean __is_wifi_restricted(void)
  73 {
  74 #if defined TIZEN_WEARABLE
  75         return FALSE;
  76 #endif
  77         int restricted_mode = 0;
  78
  79         netconfig_vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE, &restricted_mode);
  80         if (restricted_mode != 0) {
  81                 DBG("network restricted mode[%d]", restricted_mode);
  82                 return TRUE;
  83         }
  84
  85         return FALSE;
  86 }
  87
  88 static void __technology_reply(GObject *source_object, GAsyncResult *res, gpointer user_data)
  89 {
  90         GVariant *reply;
  91         GDBusConnection *conn = NULL;
  92         GError *error = NULL;
  93
  94         conn = G_DBUS_CONNECTION(source_object);
  95         reply = g_dbus_connection_call_finish(conn, res, &error);
  96
  97         if (reply == NULL) {
  98                 if (error != NULL) {
  99                         if (g_strstr_len(error->message, strlen(error->message),
 100                                         CONNMAN_ERROR_INTERFACE ".AlreadyEnabled") != NULL) {
 101                                 wifi_state_update_power_state(TRUE);
 102                         } else if (g_strstr_len(error->message, strlen(error->message),
 103                                         CONNMAN_ERROR_INTERFACE ".AlreadyDisabled") != NULL) {
 104                                 wifi_state_update_power_state(FALSE);
 105                         } else {
 106                                 ERR("Fail to request status [%d: %s]", error->code, error->message);
 107                                 wifi_state_update_power_state(FALSE);
 108                         }
 109                         g_error_free(error);
 110                 } else {
 111                         ERR("Fail to request status");
 112                         wifi_state_update_power_state(FALSE);
 113                 }
 114         } else {
 115                 DBG("Successfully requested");
 116         }
 117
 118         g_variant_unref(reply);
 119         netconfig_gdbus_pending_call_unref();
 120 }
 121
 122 static int __execute_supplicant(gboolean enable)
 123 {
 124         int rv = 0;
 125         const char *path = WLAN_SUPPLICANT_SCRIPT;
 126         char *const args_enable[] = { "/usr/bin/wpa_supp.sh", "start", NULL };
 127         char *const args_disable[] = { "/usr/bin/wpa_supp.sh", "stop", NULL };
 128         char *const envs[] = { NULL };
 129         static gboolean enabled = FALSE;
 130
 131         if (enabled == enable)
 132                 return -EALREADY;
 133
 134         if (enable == TRUE)
 135                 rv = netconfig_execute_file(path, args_enable, envs);
 136         else
 137                 rv = netconfig_execute_file(path, args_disable, envs);
 138         if (rv < 0)
 139                 return -EIO;
 140
 141         DBG("wpa_supplicant %s", enable == TRUE ? "started" : "stopped");
 142
 143         enabled = enable;
 144
 145         return 0;
 146 }
 147
 148 void netconfig_wifi_recover_firmware(void)
 149 {
 150         wifi_firmware_recovery_mode = TRUE;
 151
 152         netconfig_wifi_bgscan_stop();
 153
 154         wifi_power_off();
 155 }
 156
 157 static int _load_driver_and_supplicant(void)
 158 {
 159         int err = 0;
 160         wifi_tech_state_e tech_state;
 161
 162         tech_state = wifi_state_get_technology_state();
 163         if (tech_state > NETCONFIG_WIFI_TECH_OFF)
 164                 return -EALREADY;
 165
 166         err = __execute_supplicant(TRUE);
 167         if (err < 0 && err != -EALREADY)
 168                 return err;
 169
 170         err = netconfig_wifi_firmware(NETCONFIG_WIFI_STA, TRUE);
 171         if (err < 0 && err != -EALREADY) {
 172                 __execute_supplicant(FALSE);
 173                 return err;
 174         }
 175
 176         wifi_state_set_tech_state(NETCONFIG_WIFI_TECH_WPS_ONLY);
 177
 178         return 0;
 179 }
 180
 181 static int _remove_driver_and_supplicant(void)
 182 {
 183         int err = 0;
 184
 185         INFO("remove driver and supplicant");
 186         if (wifi_firmware_recovery_mode != TRUE &&
 187                                         netconfig_wifi_is_wps_enabled() == TRUE) {
 188                 DBG("Wi-Fi WPS mode");
 189                 return 0;
 190         }
 191
 192         err = netconfig_wifi_firmware(NETCONFIG_WIFI_STA, FALSE);
 193         if (err < 0 && err != -EALREADY)
 194                 return err;
 195
 196         err = __execute_supplicant(FALSE);
 197         if (err < 0 && err != -EALREADY)
 198                 return err;
 199
 200         wifi_state_set_tech_state(NETCONFIG_WIFI_TECH_OFF);
 201
 202         // reset service state
 203         wifi_state_set_service_state(NETCONFIG_WIFI_IDLE);
 204
 205         if (wifi_firmware_recovery_mode == TRUE) {
 206                 if (wifi_power_on() < 0)
 207                         ERR("Failed to recover Wi-Fi firmware");
 208
 209                 wifi_firmware_recovery_mode = FALSE;
 210         }
 211
 212         return 0;
 213 }
 214
 215 static int _set_connman_technology_power(gboolean enable)
 216 {
 217         gboolean reply = FALSE;
 218         GVariant *param0 = NULL;
 219         GVariant *params = NULL;
 220         char key[] = "Powered";
 221         gboolean value_enable = TRUE;
 222         gboolean value_disable = FALSE;
 223
 224         if (connman_wifi_technology_state == enable)
 225                 return -EALREADY;
 226
 227         if (enable == TRUE)
 228                 param0 = g_variant_new_boolean(value_enable);
 229         else
 230                 param0 = g_variant_new_boolean(value_disable);
 231
 232         params = g_variant_new("(sv)", key, param0);
 233
 234         reply = netconfig_invoke_dbus_method_nonblock(CONNMAN_SERVICE,
 235                                         CONNMAN_WIFI_TECHNOLOGY_PREFIX, CONNMAN_TECHNOLOGY_INTERFACE,
 236                                         "SetProperty", params, __technology_reply);
 237
 238         if (reply != TRUE) {
 239                 ERR("Fail to set technology %s", enable == TRUE ? "enable" : "disable");
 240                 return -ESRCH;
 241         }
 242
 243         /* If Wi-Fi powered off,
 244          * Do not remove Wi-Fi driver until ConnMan technology state updated
 245          */
 246         if (enable == TRUE)
 247                 connman_wifi_technology_state = enable;
 248
 249         /* To be keep safe, early disable Wi-Fi tech state */
 250         if (enable != TRUE)
 251                 wifi_state_set_tech_state(NETCONFIG_WIFI_TECH_WPS_ONLY);
 252
 253         return 0;
 254 }
 255
 256 static void __netconfig_set_wifi_bssid(void)
 257 {
 258         int rv = 0;
 259         char bssid[WLAN_MAC_ADDR_MAX];
 260
 261         FILE *fp = fopen(WLAN_MAC_ADDRESS_FILEPATH, "r");
 262
 263         if (fp == NULL) {
 264                 ERR("Fail to open %s", WLAN_MAC_ADDRESS_FILEPATH);
 265                 return;
 266         }
 267
 268         fseek(fp, 0L, SEEK_SET);
 269         rv = fscanf(fp, "%17s", bssid);
 270
 271         if (rv < 0)
 272                 ERR("Fail to read bssid");
 273
 274         netconfig_set_vconf_str(VCONF_WIFI_BSSID_ADDRESS, bssid);
 275
 276         fclose(fp);
 277 }
 278
 279 void netconfig_wifi_disable_technology_state_by_only_connman_signal(void)
 280 {
 281         /* Important: it's only done by ConnMan technology signal update */
 282         connman_wifi_technology_state = FALSE;
 283 }
 284
 285 #if defined TIZEN_WEARABLE
 286 int netconfig_wifi_on_wearable(gboolean device_picker_test)
 287 {
 288         int err = 0;
 289         int wifi_use;
 290         int ps_mode;
 291
 292         if (netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use) < 0) {
 293                 ERR("Fail to get VCONF_WIFI_WEARABLE_WIFI_USE");
 294                 return -EIO;
 295         }
 296
 297         if (wifi_use > 0) {
 298                 if (netconfig_vconf_get_int(VCONFKEY_SETAPPL_PSMODE, &ps_mode) < 0) {
 299                         ERR("Fail to get VCONFKEY_SETAPPL_PSMODE");
 300                         return -EIO;
 301                 }
 302
 303                 if (ps_mode > SETTING_PSMODE_NORMAL) {
 304                         WARN("ps mode is on(%d), Not turn on Wi-Fi", ps_mode);
 305                         return -EPERM;
 306                 }
 307         } else {
 308                 WARN("Not permitted Wi-Fi on");
 309                 return -EPERM;
 310         }
 311
 312         err = wifi_power_driver_and_supplicant(TRUE);
 313         if (err < 0 && err != -EALREADY)
 314                 return err;
 315
 316         err = _set_connman_technology_power(TRUE);
 317
 318         if (device_picker_test == TRUE)
 319                 netconfig_wifi_enable_device_picker_test();
 320
 321         return err;
 322 }
 323
 324 static void __wearable_wifi_use_changed_cb(keynode_t* node, void* user_data)
 325 {
 326         int wifi_state;
 327         int wifi_use = 1;
 328
 329         if (netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state) < 0) {
 330                 ERR("Fail to get VCONFKEY_WIFI_STATE");
 331                 return;
 332         }
 333
 334         if (node != NULL)
 335                 wifi_use = vconf_keynode_get_int(node);
 336         else
 337                 netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use);
 338
 339         if (wifi_use > 0) {
 340                 DBG("wifi use on");
 341                 if (wifi_state > VCONFKEY_WIFI_OFF) {
 342                         WARN("Wi-Fi is already turned on");
 343                         return;
 344                 }
 345                 wifi_power_on_wearable(TRUE);
 346         } else {
 347                 ERR("## wifi use [OFF]");
 348                 if (wifi_state == VCONFKEY_WIFI_OFF) {
 349                         WARN("Wi-Fi is already turned off");
 350                         return;
 351                 }
 352
 353                 wifi_power_off();
 354         }
 355 }
 356 #else
 357 static void __netconfig_wifi_restrict_mode(keynode_t *node, void *user_data)
 358 {
 359         int wifi_state = 0, restricted = 0;
 360         int wifi_off_by_restricted = 0;
 361
 362         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, &wifi_off_by_restricted);
 363
 364         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 365
 366         if (node != NULL)
 367                 restricted = vconf_keynode_get_bool(node);
 368         else
 369                 netconfig_vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE, &restricted);
 370
 371         DBG("network restricted mode %s", restricted > 0 ? "ON" : "OFF");
 372         DBG("Wi-Fi state %d, Wi-Fi was off by restricted mode %s", wifi_state,
 373                         wifi_off_by_restricted ? "Yes" : "No");
 374
 375         if (restricted > 0) {
 376                 /* network restricted on */
 377                 if (wifi_state == VCONFKEY_WIFI_OFF)
 378                         return;
 379
 380                 wifi_power_off();
 381
 382                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, 1);
 383         } else {
 384                 /* network restricted off */
 385                 if (!wifi_off_by_restricted)
 386                         return;
 387
 388                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, 0);
 389
 390                 if (wifi_state > VCONFKEY_WIFI_OFF)
 391                         return;
 392
 393                 wifi_power_on();
 394         }
 395 }
 396 #endif
 397
 398 static void __netconfig_wifi_airplane_mode(keynode_t *node, void *user_data)
 399 {
 400         int wifi_state = 0, airplane_state = 0;
 401         int wifi_off_by_airplane = 0;
 402
 403         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, &wifi_off_by_airplane);
 404
 405 #if defined TIZEN_WEARABLE
 406         netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_state)
 407 #else
 408         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 409 #endif
 410
 411         if (node != NULL)
 412                 airplane_state = vconf_keynode_get_bool(node);
 413         else
 414                 netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_FLIGHT_MODE, &airplane_state);
 415
 416         DBG("airplane mode %s (prev:%d)", airplane_state > 0 ? "ON" : "OFF", airplane_mode);
 417         DBG("Wi-Fi state(or use) %d, Wi-Fi was off by flight mode %s", wifi_state,
 418                         wifi_off_by_airplane ? "Yes" : "No");
 419
 420         if (airplane_mode == airplane_state)
 421                 return ;
 422
 423         airplane_mode = airplane_state;
 424
 425         if (airplane_state > 0) {
 426                 /* airplane mode on */
 427                 if (wifi_state == VCONFKEY_WIFI_OFF)
 428                         return;
 429
 430                 wifi_power_off();
 431
 432                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 1);
 433 #if defined TIZEN_WEARABLE
 434                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 0);
 435 #endif
 436         } else {
 437                 /* airplane mode off */
 438                 if (!wifi_off_by_airplane)
 439                         return;
 440
 441                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
 442 #if defined TIZEN_WEARABLE
 443                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 1);
 444 #else
 445                 if (wifi_state > VCONFKEY_WIFI_OFF)
 446                         return;
 447
 448                 wifi_power_on();
 449 #endif
 450         }
 451 }
 452
 453 static void __emergency_mode_changed_cb(keynode_t *node, void *user_data)
 454 {
 455         int wifi_state = 0, emergency = 0;
 456         int wifi_off_by_emergency = 0;
 457 #if !defined TIZEN_WEARABLE
 458         int emergency_by_fmm = 0;
 459 #endif
 460 #if defined TIZEN_WEARABLE
 461         int wifi_use = 1;
 462 #endif
 463
 464         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, &wifi_off_by_emergency);
 465         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 466
 467 #if !defined TIZEN_WEARABLE
 468         netconfig_vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_PERMIT_WITH_LCD_OFF_LIMIT, &emergency_by_fmm);
 469         DBG("emergency mode by Find My Mobile (%d)", emergency_by_fmm);
 470         if (emergency_by_fmm == 1)
 471                 return;
 472 #endif
 473
 474         if (node != NULL)
 475                 emergency = vconf_keynode_get_int(node);
 476         else
 477                 netconfig_vconf_get_int(VCONFKEY_SETAPPL_PSMODE, &emergency);
 478
 479         DBG("emergency mode %s", emergency > SETTING_PSMODE_POWERFUL ? "ON" : "OFF");
 480         DBG("Wi-Fi state %d, Wi-Fi was off by emergency mode %s", wifi_state, wifi_off_by_emergency ? "Yes" : "No");
 481
 482 #if defined TIZEN_WEARABLE
 483         if (emergency == SETTING_PSMODE_WEARABLE) {
 484                 /* basic power saving mode on */
 485         } else if (emergency == SETTING_PSMODE_WEARABLE_ENHANCED) {
 486                 /* enhanced power saving mode on */
 487                 netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use);
 488                 psmode_wifi_use = wifi_use;
 489                 if (wifi_use != 0)
 490                         netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 0);
 491
 492                 if (wifi_state == VCONFKEY_WIFI_OFF)
 493                         return;
 494
 495                 wifi_power_off();
 496                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 1);
 497         } else {
 498                 /* power saving mode off */
 499                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, psmode_wifi_use);
 500                 if (!wifi_off_by_emergency)
 501                         return;
 502
 503                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 0);
 504                 if (wifi_state > VCONFKEY_WIFI_OFF)
 505                         return;
 506
 507                 wifi_power_on_wearable(TRUE);
 508         }
 509 #else
 510         if (emergency > SETTING_PSMODE_POWERFUL) {
 511                 /* emergency mode on */
 512                 if (wifi_state == VCONFKEY_WIFI_OFF)
 513                         return;
 514
 515                 wifi_power_off();
 516
 517                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 1);
 518         } else {
 519                 /* emergency mode off */
 520                 if (!wifi_off_by_emergency)
 521                         return;
 522
 523                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 0);
 524
 525                 if (wifi_state > VCONFKEY_WIFI_OFF)
 526                         return;
 527
 528                 wifi_power_on();
 529         }
 530 #endif
 531
 532 }
 533
 534 static void __pm_state_changed_cb(keynode_t* node, void* user_data)
 535 {
 536         int new_state = -1;
 537         int wifi_state = 0;
 538         static int prev_state = VCONFKEY_PM_STATE_NORMAL;
 539
 540         if (netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state) < 0) {
 541                 ERR("Fail to get VCONFKEY_WIFI_STATE");
 542                 return;
 543         }
 544
 545         /* PM state
 546          *      VCONFKEY_PM_STATE_NORMAL = 1,
 547          *      VCONFKEY_PM_STATE_LCDDIM,
 548          *      VCONFKEY_PM_STATE_LCDOFF,
 549          *      VCONFKEY_PM_STATE_SLEEP
 550          */
 551         if (node != NULL)
 552                 new_state = vconf_keynode_get_int(node);
 553         else
 554                 netconfig_vconf_get_int(VCONFKEY_PM_STATE, &new_state);
 555
 556         DBG("wifi state: %d (0 off / 1 on / 2 connected)", wifi_state);
 557         DBG("Old PM state: %d, current: %d", prev_state, new_state);
 558
 559         if ((new_state == VCONFKEY_PM_STATE_NORMAL) && (prev_state >= VCONFKEY_PM_STATE_LCDOFF)) {
 560                 netconfig_wifi_bgscan_stop();
 561                 netconfig_wifi_bgscan_start(TRUE);
 562         }
 563
 564         prev_state = new_state;
 565 }
 566
 567 static void __netconfig_telephony_ready_changed_cb(keynode_t * node, void *data)
 568 {
 569         int telephony_ready = 0;
 570
 571         if (node != NULL)
 572                 telephony_ready = vconf_keynode_get_bool(node);
 573         else
 574                 netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_READY, &telephony_ready);
 575
 576         if (telephony_ready != 0) {
 577                 if (netconfig_tapi_check_sim_state() == FALSE) {
 578                         DBG("Sim is not initialized yet.");
 579
 580                         goto done;
 581                 }
 582         } else
 583                 return;
 584
 585         DBG("Turn Wi-Fi on automatically");
 586
 587 #if defined TIZEN_WEARABLE
 588         wifi_power_on_wearable(TRUE);
 589 #else
 590         wifi_power_on();
 591 #endif
 592
 593 done:
 594         vconf_ignore_key_changed(VCONFKEY_TELEPHONY_READY, __netconfig_telephony_ready_changed_cb);
 595 }
 596
 597 int wifi_power_driver_and_supplicant(gboolean enable)
 598 {
 599         /* There are 3 thumb rules for Wi-Fi power management
 600          *   1. Do not make exposed API to control wpa_supplicant and driver directly.
 601          *      It probably breaks ConnMan technology operation.
 602          *
 603          *   2. Do not remove driver and wpa_supplicant if ConnMan already enabled.
 604          *      It breaks ConnMan technology operation.
 605          *
 606          *   3. Final the best rule: make it as simple as possible.
 607          *      Simple code enables easy maintenance and reduces logical errors.
 608          */
 609         if (enable == TRUE) {
 610                 return _load_driver_and_supplicant();
 611         } else {
 612                 if (connman_wifi_technology_state == TRUE)
 613                         return -ENOSYS;
 614
 615                 return _remove_driver_and_supplicant();
 616         }
 617 }
 618
 619 void wifi_power_disable_technology_state_by_only_connman_signal(void)
 620 {
 621         /* Important: it's only done by ConnMan technology signal update */
 622         connman_wifi_technology_state = FALSE;
 623 }
 624
 625 void wifi_power_recover_firmware(void)
 626 {
 627         wifi_firmware_recovery_mode = TRUE;
 628
 629         netconfig_wifi_bgscan_stop();
 630
 631         wifi_power_off();
 632 }
 633
 634 int wifi_power_on(void)
 635 {
 636         int err = 0;
 637         wifi_tech_state_e tech_state;
 638
 639         tech_state = wifi_state_get_technology_state();
 640         if (tech_state >= NETCONFIG_WIFI_TECH_POWERED) {
 641                 /* There can be a scenario where wifi is automatically *
 642                  * activated by connman if wifi was powered in last boot. *
 643                  * So we should update connman_wifi_technology_state variable *
 644                  * if it is found that wifi_tech_state variable is *
 645                  * NETCONFIG_WIFI_TECH_POWERED and connman_wifi_technology_state *
 646                  * variable is FALSE. Earlier connman_wifi_technology_state *
 647                  * variable was only updated when wifi was Powered on from *
 648                  * net-config resulting in variable not getting updated. *
 649                  * This caused wifi to not get deactivated after reboot if *
 650                  * last power state was activated */
 651                 ERR("Net-Config WiFi connman technology state %d",
 652                                 connman_wifi_technology_state);
 653                 if (connman_wifi_technology_state == FALSE)
 654                         connman_wifi_technology_state = TRUE;
 655                 return -EALREADY;
 656         }
 657
 658         if (__is_wifi_restricted() == TRUE)
 659                 return -EPERM;
 660
 661         if (netconfig_is_wifi_tethering_on() == TRUE) {
 662                 /* TODO: Wi-Fi tethering turns off here */
 663                 /* return TRUE; */
 664                 ERR("Failed to turn tethering off");
 665                 return -EBUSY;
 666         }
 667
 668         err = wifi_power_driver_and_supplicant(TRUE);
 669         if (err < 0 && err != -EALREADY)
 670                 return err;
 671
 672         err = _set_connman_technology_power(TRUE);
 673
 674         return err;
 675 }
 676
 677 int wifi_power_off(void)
 678 {
 679         int err;
 680
 681         err = _set_connman_technology_power(FALSE);
 682         if (err == -EALREADY)
 683                 wifi_state_update_power_state(FALSE);
 684
 685         return 0;
 686 }
 687
 688 #if defined TIZEN_WEARABLE
 689 int wifi_power_on_wearable(gboolean device_picker_test)
 690 {
 691         int err = 0;
 692         int wifi_use = 1;
 693         wifi_tech_state_e tech_state;
 694
 695         tech_state = wifi_state_get_technology_state();
 696         if (tech_state >= NETCONFIG_WIFI_TECH_POWERED)
 697                 return -EALREADY;
 698
 699         if (netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use) < 0) {
 700                 ERR("Fail to get VCONF_WIFI_WEARABLE_WIFI_USE");
 701                 return -EIO;
 702         }
 703
 704         if (wifi_use == 0) {
 705                 WARN("VCONF_WIFI_WEARABLE_WIFI_USE is OFF");
 706                 return -EPERM;
 707         }
 708
 709         err = wifi_power_driver_and_supplicant(TRUE);
 710         if (err < 0 && err != -EALREADY)
 711                 return err;
 712
 713         err = _set_connman_technology_power(TRUE);
 714
 715         if (device_picker_test == TRUE)
 716                 netconfig_wifi_enable_device_picker_test();
 717
 718         return err;
 719 }
 720 #endif
 721
 722 void wifi_power_initialize(void)
 723 {
 724         int wifi_last_power_state = 0;
 725
 726         /* Initialize Airplane mode */
 727         netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_FLIGHT_MODE, &airplane_mode);
 728         DBG("Airplane[%s]", airplane_mode > 0 ? "ON" : "OFF");
 729
 730         /* Update the last Wi-Fi power state */
 731         netconfig_vconf_get_int(VCONF_WIFI_LAST_POWER_STATE, &wifi_last_power_state);
 732         if (wifi_last_power_state > VCONFKEY_WIFI_OFF) {
 733                 if (TIZEN_TELEPHONY_ENABLE) {
 734                         int telephony_ready = 0;
 735                         netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_READY, &telephony_ready);
 736                         if (telephony_ready == 0) {
 737                                 DBG("Telephony API is not initialized yet");
 738                                 vconf_notify_key_changed(VCONFKEY_TELEPHONY_READY,
 739                                                 __netconfig_telephony_ready_changed_cb, NULL);
 740                         } else {
 741                                 if (netconfig_tapi_check_sim_state() == FALSE)
 742                                         DBG("SIM is not initialized yet");
 743                         }
 744                 }
 745                 DBG("Turn Wi-Fi on automatically");
 746 #if defined TIZEN_WEARABLE
 747                 wifi_power_on_wearable(TRUE);
 748 #else
 749                 wifi_power_on();
 750 #endif
 751         }
 752
 753 #if defined TIZEN_WEARABLE
 754         vconf_notify_key_changed(VCONF_WIFI_WEARABLE_WIFI_USE, __wearable_wifi_use_changed_cb, NULL);
 755
 756         vconf_notify_key_changed(VCONFKEY_TELEPHONY_FLIGHT_MODE,
 757                         __netconfig_wifi_airplane_mode, NULL);
 758 #else
 759         vconf_notify_key_changed(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE,
 760                         __netconfig_wifi_restrict_mode, NULL);
 761         vconf_notify_key_changed(VCONFKEY_TELEPHONY_FLIGHT_MODE,
 762                         __netconfig_wifi_airplane_mode, NULL);
 763 #endif
 764
 765         vconf_notify_key_changed(VCONFKEY_SETAPPL_PSMODE, __emergency_mode_changed_cb, NULL);
 766         vconf_notify_key_changed(VCONFKEY_PM_STATE, __pm_state_changed_cb, NULL);
 767 }
 768
 769 void wifi_power_deinitialize(void)
 770 {
 771 }
 772
 773 gboolean handle_load_driver(Wifi *wifi,
 774                 GDBusMethodInvocation *context, gboolean device_picker_test)
 775 {
 776         int err;
 777
 778         DBG("Wi-Fi power on requested");
 779
 780         g_return_val_if_fail(wifi != NULL, FALSE);
 781
 782         if (!netconfig_dpm_update_from_wifi()) {
 783                 DBG("DPM policy restricts Wi-Fi");
 784                 netconfig_error_permission_denied(context);
 785                 return TRUE;
 786         }
 787
 788         if (TIZEN_WLAN_BOARD_SPRD)
 789                 wifi_firmware_download();
 790
 791 #if defined TIZEN_WEARABLE
 792         err = wifi_power_on_wearable(device_picker_test);
 793 #else
 794         err = wifi_power_on();
 795
 796         if (device_picker_test == TRUE)
 797                 netconfig_wifi_enable_device_picker_test();
 798 #endif
 799         if (err < 0) {
 800                 if (err == -EINPROGRESS)
 801                         netconfig_error_inprogress(context);
 802                 else if (err == -EALREADY)
 803                         netconfig_error_already_exists(context);
 804                 else if (err == -EPERM)
 805                         netconfig_error_permission_denied(context);
 806                 else
 807                         netconfig_error_wifi_driver_failed(context);
 808
 809                 return TRUE;
 810         }
 811
 812
 813         netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
 814         __netconfig_set_wifi_bssid();
 815
 816         wifi_complete_load_driver(wifi, context);
 817         return TRUE;
 818 }
 819
 820 gboolean handle_remove_driver(Wifi *wifi, GDBusMethodInvocation *context)
 821 {
 822         int err;
 823
 824         DBG("Wi-Fi power off requested");
 825
 826         g_return_val_if_fail(wifi != NULL, FALSE);
 827
 828         err = wifi_power_off();
 829         if (err < 0) {
 830                 if (err == -EINPROGRESS)
 831                         netconfig_error_inprogress(context);
 832                 else if (err == -EALREADY)
 833                         netconfig_error_already_exists(context);
 834                 else if (err == -EPERM)
 835                         netconfig_error_permission_denied(context);
 836                 else
 837                         netconfig_error_wifi_driver_failed(context);
 838                 return TRUE;
 839         }
 840
 841         netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
 842
 843         wifi_complete_remove_driver(wifi, context);
 844         return TRUE;
 845 }
 846
 847 gboolean handle_load_p2p_driver(Wifi *wifi, GDBusMethodInvocation *context)
 848 {
 849         ERR("Deprecated");
 850
 851         wifi_complete_load_p2p_driver(wifi, context);
 852         return TRUE;
 853 }
 854
 855 gboolean handle_remove_p2p_driver(Wifi *wifi, GDBusMethodInvocation *context)
 856 {
 857         ERR("Deprecated");
 858
 859         wifi_complete_remove_p2p_driver(wifi, context);
 860         return TRUE;
 861 }
 862
 863 static int __netconfig_get_random_mac(unsigned char *mac_buf, int mac_len)
 864 {
 865         DBG("Generate Random Mac address of ethernet");
 866         FILE *fp;
 867         int rc;
 868
 869         fp = fopen(OS_RANDOM_FILE, "rb");
 870
 871         if (fp == NULL) {
 872                 ERR("Could not open /dev/urandom");
 873                 return -1;
 874         }
 875         rc = fread(mac_buf, 1, mac_len, fp);
 876         if (fp)
 877                 fclose(fp);
 878
 879         return rc != mac_len ? -1 : 0;
 880 }
 881
 882 void __netconfig_set_ether_macaddr()
 883 {
 884         DBG("Set wired Mac address ");
 885         char *mac_addr = NULL;
 886         char rand_addr[WLAN_MAC_ADDR_MAX];
 887         int rv = -1;
 888
 889         mac_addr = vconf_get_str(VCONF_ETH_MAC_ADDRESS);
 890         if (mac_addr == NULL) {
 891                 DBG("vconf_get_str Failed\n");
 892                 return;
 893         }
 894         /* Checking Invalid MAC Address */
 895         if ((strlen(mac_addr) == 0)) {
 896                 ERR("Failed to get valid MAC Address from vconf");
 897                 /*Generate the Random Mac address*/
 898                 unsigned char rand_mac_add[ETH_MAC_ADDR_SIZE+1];
 899
 900                 if (__netconfig_get_random_mac(rand_mac_add, ETH_MAC_ADDR_SIZE) == -1) {
 901
 902                         ERR("Could not generate the Random Mac address");
 903                         free(mac_addr);
 904                         return;
 905                 }
 906
 907                 rand_mac_add[0] &= 0xFE; /*Clear multicase bit*/
 908                 rand_mac_add[0] |= 0x02; /*set local assignment bit*/
 909
 910                 /*Set the Mac address in Vconf*/
 911                 snprintf(rand_addr, WLAN_MAC_ADDR_MAX, "%x:%x:%x:%x:%x:%x",
 912                                 rand_mac_add[0], rand_mac_add[1],
 913                                 rand_mac_add[2], rand_mac_add[3],
 914                                 rand_mac_add[4], rand_mac_add[5]);
 915
 916                 netconfig_set_vconf_str(VCONF_ETH_MAC_ADDRESS, rand_addr);
 917         } else { /* Valid MAC address */
 918                 g_strlcpy(rand_addr, mac_addr, WLAN_MAC_ADDR_MAX);
 919         }
 920
 921         DBG("MAC Address of eth0 [%s]", rand_addr);
 922         const char *path = NET_EXEC_PATH;
 923         char *const args[] = { "/sbin/ifconfig", "eth0", "hw",
 924                 "ether", rand_addr, "up", NULL};
 925         char *const envs[] = { NULL };
 926         rv = netconfig_execute_file(path, args, envs);
 927
 928         if (rv < 0)
 929                 ERR("Unable to execute system command");
 930         free(mac_addr);
 931
 932 }