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