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 VCONF_WIFI_WEARABLE_WIFI_USE                    "db/private/wifi/wearable_wifi_use"
  51 #endif
  52 #if !defined TIZEN_WEARABLE
  53 #define VCONFKEY_SETAPPL_NETWORK_PERMIT_WITH_LCD_OFF_LIMIT      "db/setting/network_with_lcd_off_limit"
  54 #endif
  55
  56 #define WLAN_MAC_ADDRESS_FILEPATH   "/sys/class/net/wlan0/address"
  57 #define WLAN_MAC_ADDR_MAX           20
  58 #define VCONF_WIFI_BSSID_ADDRESS        "db/wifi/bssid_address"
  59
  60 #define ETH_MAC_ADDR_SIZE 6
  61 #define VCONF_ETH_MAC_ADDRESS  "db/dnet/mac_address"
  62 #define NET_EXEC_PATH "/sbin/ifconfig"
  63 #define OS_RANDOM_FILE "/dev/urandom"
  64
  65 #define NETCONFIG_TECH_WAITING_INTERVAL 500
  66 #define NETCONFIG_TECH_WAITING_COUNT 6
  67
  68 static gboolean connman_wifi_technology_state = FALSE;
  69 static gboolean wifi_firmware_recovery_mode = FALSE;
  70 static int airplane_mode = 0;
  71
  72 #if defined TIZEN_WEARABLE
  73 static int psmode_wifi_use = 1;
  74 #endif
  75
  76 static gboolean __is_wifi_restricted(void)
  77 {
  78 #if defined TIZEN_WEARABLE
  79         return FALSE;
  80 #endif
  81         int restricted_mode = 0;
  82
  83         netconfig_vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE, &restricted_mode);
  84         if (restricted_mode != 0) {
  85                 DBG("network restricted mode[%d]", restricted_mode);
  86                 return TRUE;
  87         }
  88
  89         return FALSE;
  90 }
  91
  92 static void __technology_reply(GObject *source_object, GAsyncResult *res, gpointer user_data)
  93 {
  94         GVariant *reply;
  95         GDBusConnection *conn = NULL;
  96         GError *error = NULL;
  97
  98         conn = G_DBUS_CONNECTION(source_object);
  99         reply = g_dbus_connection_call_finish(conn, res, &error);
 100
 101         if (reply == NULL) {
 102                 if (error != NULL) {
 103                         if (g_strstr_len(error->message, strlen(error->message),
 104                                         CONNMAN_ERROR_INTERFACE ".AlreadyEnabled") != NULL) {
 105                                 wifi_state_update_power_state(TRUE);
 106                         } else if (g_strstr_len(error->message, strlen(error->message),
 107                                         CONNMAN_ERROR_INTERFACE ".AlreadyDisabled") != NULL) {
 108                                 wifi_state_update_power_state(FALSE);
 109                         } else {
 110                                 ERR("Fail to request status [%d: %s]", error->code, error->message);
 111                                 wifi_state_update_power_state(FALSE);
 112                         }
 113                         g_error_free(error);
 114                 } else {
 115                         ERR("Fail to request status");
 116                         wifi_state_update_power_state(FALSE);
 117                 }
 118         } else {
 119                 DBG("Successfully requested");
 120         }
 121
 122         g_variant_unref(reply);
 123         netconfig_gdbus_pending_call_unref();
 124 }
 125
 126 static int __execute_supplicant(gboolean enable)
 127 {
 128         int rv = 0;
 129         const char *path = WLAN_SUPPLICANT_SCRIPT;
 130         char *const args_enable[] = { "/usr/bin/wpa_supp.sh", "start", NULL };
 131         char *const args_disable[] = { "/usr/bin/wpa_supp.sh", "stop", NULL };
 132         char *const envs[] = { NULL };
 133         static gboolean enabled = FALSE;
 134
 135         if (enabled == enable)
 136                 return -EALREADY;
 137
 138         if (enable == TRUE)
 139                 rv = netconfig_execute_file(path, args_enable, envs);
 140         else
 141                 rv = netconfig_execute_file(path, args_disable, envs);
 142         if (rv < 0)
 143                 return -EIO;
 144
 145         DBG("wpa_supplicant %s", enable == TRUE ? "started" : "stopped");
 146
 147         enabled = enable;
 148
 149         return 0;
 150 }
 151
 152 void netconfig_wifi_recover_firmware(void)
 153 {
 154         wifi_firmware_recovery_mode = TRUE;
 155
 156         netconfig_wifi_bgscan_stop();
 157
 158         wifi_power_off();
 159 }
 160
 161 static int _load_driver_and_supplicant(void)
 162 {
 163         int err = 0;
 164         wifi_tech_state_e tech_state;
 165
 166         tech_state = wifi_state_get_technology_state();
 167         if (tech_state > NETCONFIG_WIFI_TECH_OFF)
 168                 return -EALREADY;
 169
 170         err = __execute_supplicant(TRUE);
 171         if (err < 0 && err != -EALREADY)
 172                 return err;
 173
 174         err = netconfig_wifi_firmware(NETCONFIG_WIFI_STA, TRUE);
 175         if (err < 0 && err != -EALREADY) {
 176                 __execute_supplicant(FALSE);
 177                 return err;
 178         }
 179
 180         wifi_state_set_tech_state(NETCONFIG_WIFI_TECH_WPS_ONLY);
 181
 182         return 0;
 183 }
 184
 185 static int _remove_driver_and_supplicant(void)
 186 {
 187         int err = 0;
 188
 189         INFO("remove driver and supplicant");
 190         if (wifi_firmware_recovery_mode != TRUE &&
 191                                         netconfig_wifi_is_bssid_scan_started() == TRUE) {
 192                 DBG("Wi-Fi WPS mode");
 193                 return 0;
 194         }
 195
 196         err = netconfig_wifi_firmware(NETCONFIG_WIFI_STA, FALSE);
 197         if (err < 0 && err != -EALREADY)
 198                 return err;
 199
 200         err = __execute_supplicant(FALSE);
 201         if (err < 0 && err != -EALREADY)
 202                 return err;
 203
 204         wifi_state_set_tech_state(NETCONFIG_WIFI_TECH_OFF);
 205
 206         // reset service state
 207         wifi_state_set_service_state(NETCONFIG_WIFI_IDLE);
 208
 209         if (wifi_firmware_recovery_mode == TRUE) {
 210                 if (wifi_power_on() < 0)
 211                         ERR("Failed to recover Wi-Fi firmware");
 212
 213                 wifi_firmware_recovery_mode = FALSE;
 214         }
 215
 216         return 0;
 217 }
 218
 219 static gboolean __check_and_set_technology_enable(gpointer data)
 220 {
 221         static int retry_count = NETCONFIG_TECH_WAITING_COUNT;
 222         gboolean value_enable = TRUE;
 223         gboolean reply = FALSE;
 224         GVariant *params = NULL;
 225         char key[] = "Powered";
 226
 227         if (wifi_state_is_technology_available() == FALSE) {
 228                 retry_count--;
 229                 if (retry_count > 0)
 230                         return TRUE;
 231         }
 232
 233         params = g_variant_new("(sv)", key, g_variant_new_boolean(value_enable));
 234
 235         reply = netconfig_invoke_dbus_method_nonblock(CONNMAN_SERVICE,
 236                                         CONNMAN_WIFI_TECHNOLOGY_PREFIX,
 237                                         CONNMAN_TECHNOLOGY_INTERFACE,
 238                                         "SetProperty", params, __technology_reply);
 239
 240         if (reply != TRUE) {
 241                 ERR("Fail to set technology enable");
 242                 wifi_state_update_power_state(FALSE);
 243
 244                 retry_count = NETCONFIG_TECH_WAITING_COUNT;
 245                 return FALSE;
 246         }
 247
 248         retry_count = NETCONFIG_TECH_WAITING_COUNT;
 249         return FALSE;
 250 }
 251
 252 static int _set_connman_technology_power(gboolean enable)
 253 {
 254         gboolean reply = FALSE;
 255         GVariant *params = NULL;
 256         char key[] = "Powered";
 257         gboolean value_enable = TRUE;
 258         gboolean value_disable = FALSE;
 259
 260         if (connman_wifi_technology_state == enable)
 261                 return -EALREADY;
 262
 263         if (enable && wifi_state_is_technology_available() == FALSE) {
 264                 netconfig_start_timer(NETCONFIG_TECH_WAITING_INTERVAL,
 265                                 __check_and_set_technology_enable, NULL, NULL);
 266                 connman_wifi_technology_state = enable;
 267                 return 0;
 268         }
 269
 270         params = g_variant_new("(sv)", key, (enable == TRUE) ?
 271                 g_variant_new_boolean(value_enable) : g_variant_new_boolean(value_disable));
 272
 273         reply = netconfig_invoke_dbus_method_nonblock(CONNMAN_SERVICE,
 274                                         CONNMAN_WIFI_TECHNOLOGY_PREFIX, CONNMAN_TECHNOLOGY_INTERFACE,
 275                                         "SetProperty", params, __technology_reply);
 276
 277         if (reply != TRUE) {
 278                 ERR("Fail to set technology %s", enable == TRUE ? "enable" : "disable");
 279                 return -ESRCH;
 280         }
 281
 282         /* If Wi-Fi powered off,
 283          * Do not remove Wi-Fi driver until ConnMan technology state updated
 284          */
 285         if (enable == TRUE)
 286                 connman_wifi_technology_state = enable;
 287
 288         /* To be keep safe, early disable Wi-Fi tech state */
 289         if (enable != TRUE)
 290                 wifi_state_set_tech_state(NETCONFIG_WIFI_TECH_WPS_ONLY);
 291
 292         return 0;
 293 }
 294
 295 static void __netconfig_set_wifi_bssid(void)
 296 {
 297         int rv = 0;
 298         char bssid[WLAN_MAC_ADDR_MAX];
 299
 300         FILE *fp = fopen(WLAN_MAC_ADDRESS_FILEPATH, "r");
 301
 302         if (fp == NULL) {
 303                 ERR("Fail to open %s", WLAN_MAC_ADDRESS_FILEPATH);
 304                 return;
 305         }
 306
 307         fseek(fp, 0L, SEEK_SET);
 308         rv = fscanf(fp, "%17s", bssid);
 309
 310         if (rv < 0)
 311                 ERR("Fail to read bssid");
 312
 313         netconfig_set_vconf_str(VCONF_WIFI_BSSID_ADDRESS, bssid);
 314
 315         fclose(fp);
 316 }
 317
 318 void netconfig_wifi_disable_technology_state_by_only_connman_signal(void)
 319 {
 320         /* Important: it's only done by ConnMan technology signal update */
 321         connman_wifi_technology_state = FALSE;
 322 }
 323
 324 #if defined TIZEN_WEARABLE
 325 int netconfig_wifi_on_wearable(gboolean device_picker_test)
 326 {
 327         int err = 0;
 328         int wifi_use;
 329         int ps_mode;
 330
 331         if (netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use) < 0) {
 332                 ERR("Fail to get VCONF_WIFI_WEARABLE_WIFI_USE");
 333                 return -EIO;
 334         }
 335
 336         if (wifi_use > 0) {
 337                 if (netconfig_vconf_get_int(VCONFKEY_SETAPPL_PSMODE, &ps_mode) < 0) {
 338                         ERR("Fail to get VCONFKEY_SETAPPL_PSMODE");
 339                         return -EIO;
 340                 }
 341
 342                 if (ps_mode > SETTING_PSMODE_NORMAL) {
 343                         WARN("ps mode is on(%d), Not turn on Wi-Fi", ps_mode);
 344                         return -EPERM;
 345                 }
 346         } else {
 347                 WARN("Not permitted Wi-Fi on");
 348                 return -EPERM;
 349         }
 350
 351         err = wifi_power_driver_and_supplicant(TRUE);
 352         if (err < 0 && err != -EALREADY)
 353                 return err;
 354
 355         err = _set_connman_technology_power(TRUE);
 356
 357         if (device_picker_test == TRUE)
 358                 netconfig_wifi_enable_device_picker_test();
 359
 360         return err;
 361 }
 362
 363 static void __wearable_wifi_use_changed_cb(keynode_t* node, void* user_data)
 364 {
 365         int wifi_state;
 366         int wifi_use = 1;
 367
 368         if (netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state) < 0) {
 369                 ERR("Fail to get VCONFKEY_WIFI_STATE");
 370                 return;
 371         }
 372
 373         if (node != NULL)
 374                 wifi_use = vconf_keynode_get_int(node);
 375         else
 376                 netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use);
 377
 378         if (wifi_use > 0) {
 379                 DBG("wifi use on");
 380                 if (wifi_state > VCONFKEY_WIFI_OFF) {
 381                         WARN("Wi-Fi is already turned on");
 382                         return;
 383                 }
 384                 wifi_power_on_wearable(TRUE);
 385         } else {
 386                 ERR("## wifi use [OFF]");
 387                 if (wifi_state == VCONFKEY_WIFI_OFF) {
 388                         WARN("Wi-Fi is already turned off");
 389                         return;
 390                 }
 391
 392                 wifi_power_off();
 393         }
 394 }
 395 #else
 396 static void __netconfig_wifi_restrict_mode(keynode_t *node, void *user_data)
 397 {
 398         int wifi_state = 0, restricted = 0;
 399         int wifi_off_by_restricted = 0;
 400
 401         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, &wifi_off_by_restricted);
 402
 403         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 404
 405         if (node != NULL)
 406                 restricted = vconf_keynode_get_bool(node);
 407         else
 408                 netconfig_vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE, &restricted);
 409
 410         DBG("network restricted mode %s", restricted > 0 ? "ON" : "OFF");
 411         DBG("Wi-Fi state %d, Wi-Fi was off by restricted mode %s", wifi_state,
 412                         wifi_off_by_restricted ? "Yes" : "No");
 413
 414         if (restricted > 0) {
 415                 /* network restricted on */
 416                 if (wifi_state == VCONFKEY_WIFI_OFF)
 417                         return;
 418
 419                 wifi_power_off();
 420
 421                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, 1);
 422         } else {
 423                 /* network restricted off */
 424                 if (!wifi_off_by_restricted)
 425                         return;
 426
 427                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, 0);
 428
 429                 if (wifi_state > VCONFKEY_WIFI_OFF)
 430                         return;
 431
 432                 wifi_power_on();
 433         }
 434 }
 435 #endif
 436
 437 static void __netconfig_wifi_airplane_mode(keynode_t *node, void *user_data)
 438 {
 439         int wifi_state = 0, airplane_state = 0;
 440         int wifi_off_by_airplane = 0;
 441
 442         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, &wifi_off_by_airplane);
 443
 444 #if defined TIZEN_WEARABLE
 445         netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_state)
 446 #else
 447         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 448 #endif
 449
 450         if (node != NULL)
 451                 airplane_state = vconf_keynode_get_bool(node);
 452         else
 453                 netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_FLIGHT_MODE, &airplane_state);
 454
 455         DBG("airplane mode %s (prev:%d)", airplane_state > 0 ? "ON" : "OFF", airplane_mode);
 456         DBG("Wi-Fi state(or use) %d, Wi-Fi was off by flight mode %s", wifi_state,
 457                         wifi_off_by_airplane ? "Yes" : "No");
 458
 459         if (airplane_mode == airplane_state)
 460                 return ;
 461
 462         airplane_mode = airplane_state;
 463
 464         if (airplane_state > 0) {
 465                 /* airplane mode on */
 466                 if (wifi_state == VCONFKEY_WIFI_OFF)
 467                         return;
 468
 469                 wifi_power_off();
 470
 471                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 1);
 472 #if defined TIZEN_WEARABLE
 473                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 0);
 474 #endif
 475         } else {
 476                 /* airplane mode off */
 477                 if (!wifi_off_by_airplane)
 478                         return;
 479
 480                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
 481 #if defined TIZEN_WEARABLE
 482                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 1);
 483 #else
 484                 if (wifi_state > VCONFKEY_WIFI_OFF)
 485                         return;
 486
 487                 wifi_power_on();
 488 #endif
 489         }
 490 }
 491
 492 static void __emergency_mode_changed_cb(keynode_t *node, void *user_data)
 493 {
 494         int wifi_state = 0, emergency = 0;
 495         int wifi_off_by_emergency = 0;
 496 #if !defined TIZEN_WEARABLE
 497         int emergency_by_fmm = 0;
 498 #endif
 499 #if defined TIZEN_WEARABLE
 500         int wifi_use = 1;
 501 #endif
 502
 503         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, &wifi_off_by_emergency);
 504         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 505
 506 #if !defined TIZEN_WEARABLE
 507         netconfig_vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_PERMIT_WITH_LCD_OFF_LIMIT, &emergency_by_fmm);
 508         DBG("emergency mode by Find My Mobile (%d)", emergency_by_fmm);
 509         if (emergency_by_fmm == 1)
 510                 return;
 511 #endif
 512
 513         if (node != NULL)
 514                 emergency = vconf_keynode_get_int(node);
 515         else
 516                 netconfig_vconf_get_int(VCONFKEY_SETAPPL_PSMODE, &emergency);
 517
 518         DBG("emergency mode %s", emergency > SETTING_PSMODE_POWERFUL ? "ON" : "OFF");
 519         DBG("Wi-Fi state %d, Wi-Fi was off by emergency mode %s", wifi_state, wifi_off_by_emergency ? "Yes" : "No");
 520
 521 #if defined TIZEN_WEARABLE
 522         if (emergency == SETTING_PSMODE_WEARABLE) {
 523                 /* basic power saving mode on */
 524         } else if (emergency == SETTING_PSMODE_WEARABLE_ENHANCED) {
 525                 /* enhanced power saving mode on */
 526                 netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use);
 527                 psmode_wifi_use = wifi_use;
 528                 if (wifi_use != 0)
 529                         netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 0);
 530
 531                 if (wifi_state == VCONFKEY_WIFI_OFF)
 532                         return;
 533
 534                 wifi_power_off();
 535                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 1);
 536         } else {
 537                 /* power saving mode off */
 538                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, psmode_wifi_use);
 539                 if (!wifi_off_by_emergency)
 540                         return;
 541
 542                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 0);
 543                 if (wifi_state > VCONFKEY_WIFI_OFF)
 544                         return;
 545
 546                 wifi_power_on_wearable(TRUE);
 547         }
 548 #else
 549         if (emergency > SETTING_PSMODE_POWERFUL) {
 550                 /* emergency mode on */
 551                 if (wifi_state == VCONFKEY_WIFI_OFF)
 552                         return;
 553
 554                 wifi_power_off();
 555
 556                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 1);
 557         } else {
 558                 /* emergency mode off */
 559                 if (!wifi_off_by_emergency)
 560                         return;
 561
 562                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 0);
 563
 564                 if (wifi_state > VCONFKEY_WIFI_OFF)
 565                         return;
 566
 567                 wifi_power_on();
 568         }
 569 #endif
 570
 571 }
 572
 573 static void __pm_state_changed_cb(keynode_t* node, void* user_data)
 574 {
 575         int new_state = -1;
 576         int wifi_state = 0;
 577         static int prev_state = VCONFKEY_PM_STATE_NORMAL;
 578
 579         if (netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state) < 0) {
 580                 ERR("Fail to get VCONFKEY_WIFI_STATE");
 581                 return;
 582         }
 583
 584         /* PM state
 585          *      VCONFKEY_PM_STATE_NORMAL = 1,
 586          *      VCONFKEY_PM_STATE_LCDDIM,
 587          *      VCONFKEY_PM_STATE_LCDOFF,
 588          *      VCONFKEY_PM_STATE_SLEEP
 589          */
 590         if (node != NULL)
 591                 new_state = vconf_keynode_get_int(node);
 592         else
 593                 netconfig_vconf_get_int(VCONFKEY_PM_STATE, &new_state);
 594
 595         DBG("wifi state: %d (0 off / 1 on / 2 connected)", wifi_state);
 596         DBG("Old PM state: %d, current: %d", prev_state, new_state);
 597
 598         if ((new_state == VCONFKEY_PM_STATE_NORMAL) && (prev_state >= VCONFKEY_PM_STATE_LCDOFF)) {
 599                 netconfig_wifi_bgscan_stop();
 600                 netconfig_wifi_bgscan_start(TRUE);
 601         }
 602
 603         prev_state = new_state;
 604 }
 605
 606 static void __netconfig_telephony_ready_changed_cb(keynode_t * node, void *data)
 607 {
 608         int telephony_ready = 0;
 609
 610         if (node != NULL)
 611                 telephony_ready = vconf_keynode_get_bool(node);
 612         else
 613                 netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_READY, &telephony_ready);
 614
 615         if (telephony_ready != 0) {
 616                 if (netconfig_tapi_check_sim_state() == FALSE) {
 617                         DBG("Sim is not initialized yet.");
 618
 619                         goto done;
 620                 }
 621         } else
 622                 return;
 623
 624         DBG("Turn Wi-Fi on automatically");
 625
 626 #if defined TIZEN_WEARABLE
 627         wifi_power_on_wearable(TRUE);
 628 #else
 629         wifi_power_on();
 630 #endif
 631
 632 done:
 633         vconf_ignore_key_changed(VCONFKEY_TELEPHONY_READY, __netconfig_telephony_ready_changed_cb);
 634 }
 635
 636 int wifi_power_driver_and_supplicant(gboolean enable)
 637 {
 638         /* There are 3 thumb rules for Wi-Fi power management
 639          *   1. Do not make exposed API to control wpa_supplicant and driver directly.
 640          *      It probably breaks ConnMan technology operation.
 641          *
 642          *   2. Do not remove driver and wpa_supplicant if ConnMan already enabled.
 643          *      It breaks ConnMan technology operation.
 644          *
 645          *   3. Final the best rule: make it as simple as possible.
 646          *      Simple code enables easy maintenance and reduces logical errors.
 647          */
 648         if (enable == TRUE) {
 649                 return _load_driver_and_supplicant();
 650         } else {
 651                 if (connman_wifi_technology_state == TRUE)
 652                         return -ENOSYS;
 653
 654                 return _remove_driver_and_supplicant();
 655         }
 656 }
 657
 658 void wifi_power_disable_technology_state_by_only_connman_signal(void)
 659 {
 660         /* Important: it's only done by ConnMan technology signal update */
 661         connman_wifi_technology_state = FALSE;
 662 }
 663
 664 void wifi_power_recover_firmware(void)
 665 {
 666         wifi_firmware_recovery_mode = TRUE;
 667
 668         netconfig_wifi_bgscan_stop();
 669
 670         wifi_power_off();
 671 }
 672
 673 int wifi_power_on(void)
 674 {
 675         int err = 0;
 676         wifi_tech_state_e tech_state;
 677
 678         tech_state = wifi_state_get_technology_state();
 679         if (tech_state >= NETCONFIG_WIFI_TECH_POWERED) {
 680                 /* There can be a scenario where wifi is automatically *
 681                  * activated by connman if wifi was powered in last boot. *
 682                  * So we should update connman_wifi_technology_state variable *
 683                  * if it is found that wifi_tech_state variable is *
 684                  * NETCONFIG_WIFI_TECH_POWERED and connman_wifi_technology_state *
 685                  * variable is FALSE. Earlier connman_wifi_technology_state *
 686                  * variable was only updated when wifi was Powered on from *
 687                  * net-config resulting in variable not getting updated. *
 688                  * This caused wifi to not get deactivated after reboot if *
 689                  * last power state was activated */
 690                 ERR("Net-Config WiFi connman technology state %d",
 691                                 connman_wifi_technology_state);
 692                 if (connman_wifi_technology_state == FALSE)
 693                         connman_wifi_technology_state = TRUE;
 694                 return -EALREADY;
 695         }
 696
 697         if (__is_wifi_restricted() == TRUE)
 698                 return -EPERM;
 699
 700         if (netconfig_is_wifi_tethering_on() == TRUE) {
 701                 /* TODO: Wi-Fi tethering turns off here */
 702                 /* return TRUE; */
 703                 ERR("Failed to turn tethering off");
 704                 return -EBUSY;
 705         }
 706
 707         err = wifi_power_driver_and_supplicant(TRUE);
 708         if (err < 0 && err != -EALREADY)
 709                 return err;
 710
 711         err = _set_connman_technology_power(TRUE);
 712
 713         return err;
 714 }
 715
 716 int wifi_power_off(void)
 717 {
 718         int err;
 719
 720         err = _set_connman_technology_power(FALSE);
 721         if (err == -EALREADY)
 722                 wifi_state_update_power_state(FALSE);
 723
 724         return 0;
 725 }
 726
 727 #if defined TIZEN_WEARABLE
 728 int wifi_power_on_wearable(gboolean device_picker_test)
 729 {
 730         int err = 0;
 731         int wifi_use = 1;
 732         wifi_tech_state_e tech_state;
 733
 734         tech_state = wifi_state_get_technology_state();
 735         if (tech_state >= NETCONFIG_WIFI_TECH_POWERED)
 736                 return -EALREADY;
 737
 738         if (netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use) < 0) {
 739                 ERR("Fail to get VCONF_WIFI_WEARABLE_WIFI_USE");
 740                 return -EIO;
 741         }
 742
 743         if (wifi_use == 0) {
 744                 WARN("VCONF_WIFI_WEARABLE_WIFI_USE is OFF");
 745                 return -EPERM;
 746         }
 747
 748         err = wifi_power_driver_and_supplicant(TRUE);
 749         if (err < 0 && err != -EALREADY)
 750                 return err;
 751
 752         err = _set_connman_technology_power(TRUE);
 753
 754         if (device_picker_test == TRUE)
 755                 netconfig_wifi_enable_device_picker_test();
 756
 757         return err;
 758 }
 759 #endif
 760
 761 void wifi_power_initialize(void)
 762 {
 763         int wifi_last_power_state = 0;
 764
 765         /* Initialize Airplane mode */
 766         netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_FLIGHT_MODE, &airplane_mode);
 767         DBG("Airplane[%s]", airplane_mode > 0 ? "ON" : "OFF");
 768
 769         /* Update the last Wi-Fi power state */
 770         netconfig_vconf_get_int(VCONF_WIFI_LAST_POWER_STATE, &wifi_last_power_state);
 771         if (wifi_last_power_state > VCONFKEY_WIFI_OFF) {
 772                 if (TIZEN_TELEPHONY_ENABLE) {
 773                         int telephony_ready = 0;
 774                         netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_READY, &telephony_ready);
 775                         if (telephony_ready == 0) {
 776                                 DBG("Telephony API is not initialized yet");
 777                                 vconf_notify_key_changed(VCONFKEY_TELEPHONY_READY,
 778                                                 __netconfig_telephony_ready_changed_cb, NULL);
 779                         } else {
 780                                 if (netconfig_tapi_check_sim_state() == FALSE)
 781                                         DBG("SIM is not initialized yet");
 782                         }
 783                 }
 784                 DBG("Turn Wi-Fi on automatically");
 785 #if defined TIZEN_WEARABLE
 786                 wifi_power_on_wearable(TRUE);
 787 #else
 788                 wifi_power_on();
 789 #endif
 790         }
 791
 792 #if defined TIZEN_WEARABLE
 793         vconf_notify_key_changed(VCONF_WIFI_WEARABLE_WIFI_USE, __wearable_wifi_use_changed_cb, NULL);
 794
 795         vconf_notify_key_changed(VCONFKEY_TELEPHONY_FLIGHT_MODE,
 796                         __netconfig_wifi_airplane_mode, NULL);
 797 #else
 798         vconf_notify_key_changed(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE,
 799                         __netconfig_wifi_restrict_mode, NULL);
 800         vconf_notify_key_changed(VCONFKEY_TELEPHONY_FLIGHT_MODE,
 801                         __netconfig_wifi_airplane_mode, NULL);
 802 #endif
 803
 804         vconf_notify_key_changed(VCONFKEY_SETAPPL_PSMODE, __emergency_mode_changed_cb, NULL);
 805         vconf_notify_key_changed(VCONFKEY_PM_STATE, __pm_state_changed_cb, NULL);
 806 }
 807
 808 void wifi_power_deinitialize(void)
 809 {
 810 }
 811
 812 gboolean handle_load_driver(Wifi *wifi,
 813                 GDBusMethodInvocation *context, gboolean device_picker_test)
 814 {
 815         int err;
 816
 817         DBG("Wi-Fi power on requested");
 818
 819         g_return_val_if_fail(wifi != NULL, FALSE);
 820
 821         if (!netconfig_dpm_update_from_wifi()) {
 822                 DBG("DPM policy restricts Wi-Fi");
 823                 netconfig_error_permission_denied(context);
 824                 return TRUE;
 825         }
 826
 827         if (TIZEN_WLAN_BOARD_SPRD)
 828                 wifi_firmware_download();
 829
 830 #if defined TIZEN_WEARABLE
 831         err = wifi_power_on_wearable(device_picker_test);
 832 #else
 833         err = wifi_power_on();
 834
 835         if (device_picker_test == TRUE)
 836                 netconfig_wifi_enable_device_picker_test();
 837 #endif
 838         if (err < 0) {
 839                 if (err == -EINPROGRESS)
 840                         netconfig_error_inprogress(context);
 841                 else if (err == -EALREADY)
 842                         netconfig_error_already_exists(context);
 843                 else if (err == -EPERM)
 844                         netconfig_error_permission_denied(context);
 845                 else
 846                         netconfig_error_wifi_driver_failed(context);
 847
 848                 return TRUE;
 849         }
 850
 851
 852         netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
 853         __netconfig_set_wifi_bssid();
 854
 855         wifi_complete_load_driver(wifi, context);
 856         return TRUE;
 857 }
 858
 859 gboolean handle_remove_driver(Wifi *wifi, GDBusMethodInvocation *context)
 860 {
 861         int err;
 862
 863         DBG("Wi-Fi power off requested");
 864
 865         g_return_val_if_fail(wifi != NULL, FALSE);
 866
 867         err = wifi_power_off();
 868         if (err < 0) {
 869                 if (err == -EINPROGRESS)
 870                         netconfig_error_inprogress(context);
 871                 else if (err == -EALREADY)
 872                         netconfig_error_already_exists(context);
 873                 else if (err == -EPERM)
 874                         netconfig_error_permission_denied(context);
 875                 else
 876                         netconfig_error_wifi_driver_failed(context);
 877                 return TRUE;
 878         }
 879
 880         netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
 881
 882         wifi_complete_remove_driver(wifi, context);
 883         return TRUE;
 884 }
 885
 886 gboolean handle_load_p2p_driver(Wifi *wifi, GDBusMethodInvocation *context)
 887 {
 888         ERR("Deprecated");
 889
 890         wifi_complete_load_p2p_driver(wifi, context);
 891         return TRUE;
 892 }
 893
 894 gboolean handle_remove_p2p_driver(Wifi *wifi, GDBusMethodInvocation *context)
 895 {
 896         ERR("Deprecated");
 897
 898         wifi_complete_remove_p2p_driver(wifi, context);
 899         return TRUE;
 900 }
 901
 902 static int __netconfig_get_random_mac(unsigned char *mac_buf, int mac_len)
 903 {
 904         DBG("Generate Random Mac address of ethernet");
 905         FILE *fp;
 906         int rc;
 907
 908         fp = fopen(OS_RANDOM_FILE, "rb");
 909
 910         if (fp == NULL) {
 911                 ERR("Could not open /dev/urandom");
 912                 return -1;
 913         }
 914         rc = fread(mac_buf, 1, mac_len, fp);
 915         if (fp)
 916                 fclose(fp);
 917
 918         return rc != mac_len ? -1 : 0;
 919 }
 920
 921 void __netconfig_set_ether_macaddr()
 922 {
 923         DBG("Set wired Mac address ");
 924         char *mac_addr = NULL;
 925         char rand_addr[WLAN_MAC_ADDR_MAX];
 926         int rv = -1;
 927
 928         mac_addr = vconf_get_str(VCONF_ETH_MAC_ADDRESS);
 929         if (mac_addr == NULL) {
 930                 DBG("vconf_get_str Failed\n");
 931                 return;
 932         }
 933         /* Checking Invalid MAC Address */
 934         if ((strlen(mac_addr) == 0)) {
 935                 ERR("Failed to get valid MAC Address from vconf");
 936                 /*Generate the Random Mac address*/
 937                 unsigned char rand_mac_add[ETH_MAC_ADDR_SIZE+1];
 938
 939                 if (__netconfig_get_random_mac(rand_mac_add, ETH_MAC_ADDR_SIZE) == -1) {
 940
 941                         ERR("Could not generate the Random Mac address");
 942                         free(mac_addr);
 943                         return;
 944                 }
 945
 946                 rand_mac_add[0] &= 0xFE; /*Clear multicase bit*/
 947                 rand_mac_add[0] |= 0x02; /*set local assignment bit*/
 948
 949                 /*Set the Mac address in Vconf*/
 950                 snprintf(rand_addr, WLAN_MAC_ADDR_MAX, "%x:%x:%x:%x:%x:%x",
 951                                 rand_mac_add[0], rand_mac_add[1],
 952                                 rand_mac_add[2], rand_mac_add[3],
 953                                 rand_mac_add[4], rand_mac_add[5]);
 954
 955                 netconfig_set_vconf_str(VCONF_ETH_MAC_ADDRESS, rand_addr);
 956         } else { /* Valid MAC address */
 957                 g_strlcpy(rand_addr, mac_addr, WLAN_MAC_ADDR_MAX);
 958         }
 959
 960         DBG("MAC Address of eth0 [%s]", rand_addr);
 961         const char *path = NET_EXEC_PATH;
 962         char *const args[] = { "/sbin/ifconfig", "eth0", "hw",
 963                 "ether", rand_addr, "up", NULL};
 964         char *const envs[] = { NULL };
 965         rv = netconfig_execute_file(path, args, envs);
 966
 967         if (rv < 0)
 968                 ERR("Unable to execute system command");
 969         free(mac_addr);
 970
 971 }