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                 g_variant_unref(reply);
 121         }
 122
 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         DBG("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 *param0 = NULL;
 225         GVariant *params = NULL;
 226         char key[] = "Powered";
 227
 228         if (wifi_state_is_technology_available() == FALSE) {
 229                 retry_count--;
 230                 if (retry_count > 0)
 231                         return TRUE;
 232         }
 233
 234         param0 = g_variant_new_boolean(value_enable);
 235         params = g_variant_new("(sv)", key, param0);
 236
 237         reply = netconfig_invoke_dbus_method_nonblock(CONNMAN_SERVICE,
 238                                         CONNMAN_WIFI_TECHNOLOGY_PREFIX,
 239                                         CONNMAN_TECHNOLOGY_INTERFACE,
 240                                         "SetProperty", params, __technology_reply);
 241
 242         if (reply != TRUE) {
 243                 ERR("Fail to set technology enable");
 244                 wifi_state_update_power_state(FALSE);
 245
 246                 retry_count = NETCONFIG_TECH_WAITING_COUNT;
 247                 return FALSE;
 248         }
 249
 250         retry_count = NETCONFIG_TECH_WAITING_COUNT;
 251         return FALSE;
 252 }
 253
 254 static int _set_connman_technology_power(gboolean enable)
 255 {
 256         gboolean reply = FALSE;
 257         GVariant *param0 = NULL;
 258         GVariant *params = NULL;
 259         char key[] = "Powered";
 260         gboolean value_enable = TRUE;
 261         gboolean value_disable = FALSE;
 262
 263         if (connman_wifi_technology_state == enable)
 264                 return -EALREADY;
 265
 266         if (enable && wifi_state_is_technology_available() == FALSE) {
 267                 netconfig_start_timer(NETCONFIG_TECH_WAITING_INTERVAL,
 268                                 __check_and_set_technology_enable, NULL, NULL);
 269                 connman_wifi_technology_state = enable;
 270                 return 0;
 271         }
 272
 273         if (enable == TRUE)
 274                 param0 = g_variant_new_boolean(value_enable);
 275         else
 276                 param0 = g_variant_new_boolean(value_disable);
 277
 278         params = g_variant_new("(sv)", key, param0);
 279
 280         reply = netconfig_invoke_dbus_method_nonblock(CONNMAN_SERVICE,
 281                                         CONNMAN_WIFI_TECHNOLOGY_PREFIX, CONNMAN_TECHNOLOGY_INTERFACE,
 282                                         "SetProperty", params, __technology_reply);
 283
 284         if (reply != TRUE) {
 285                 ERR("Fail to set technology %s", enable == TRUE ? "enable" : "disable");
 286                 return -ESRCH;
 287         }
 288
 289         /* If Wi-Fi powered off,
 290          * Do not remove Wi-Fi driver until ConnMan technology state updated
 291          */
 292         if (enable == TRUE)
 293                 connman_wifi_technology_state = enable;
 294
 295         /* To be keep safe, early disable Wi-Fi tech state */
 296         if (enable != TRUE)
 297                 wifi_state_set_tech_state(NETCONFIG_WIFI_TECH_WPS_ONLY);
 298
 299         return 0;
 300 }
 301
 302 static void __netconfig_set_wifi_bssid(void)
 303 {
 304         int rv = 0;
 305         char bssid[WLAN_MAC_ADDR_MAX];
 306
 307         FILE *fp = fopen(WLAN_MAC_ADDRESS_FILEPATH, "r");
 308
 309         if (fp == NULL) {
 310                 ERR("Fail to open %s", WLAN_MAC_ADDRESS_FILEPATH);
 311                 return;
 312         }
 313
 314         fseek(fp, 0L, SEEK_SET);
 315         rv = fscanf(fp, "%17s", bssid);
 316
 317         if (rv < 0)
 318                 ERR("Fail to read bssid");
 319
 320         netconfig_set_vconf_str(VCONF_WIFI_BSSID_ADDRESS, bssid);
 321
 322         fclose(fp);
 323 }
 324
 325 void netconfig_wifi_disable_technology_state_by_only_connman_signal(void)
 326 {
 327         /* Important: it's only done by ConnMan technology signal update */
 328         connman_wifi_technology_state = FALSE;
 329 }
 330
 331 #if defined TIZEN_WEARABLE
 332 int netconfig_wifi_on_wearable(gboolean device_picker_test)
 333 {
 334         int err = 0;
 335         int wifi_use;
 336         int ps_mode;
 337
 338         if (netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use) < 0) {
 339                 ERR("Fail to get VCONF_WIFI_WEARABLE_WIFI_USE");
 340                 return -EIO;
 341         }
 342
 343         if (wifi_use > 0) {
 344                 if (netconfig_vconf_get_int(VCONFKEY_SETAPPL_PSMODE, &ps_mode) < 0) {
 345                         ERR("Fail to get VCONFKEY_SETAPPL_PSMODE");
 346                         return -EIO;
 347                 }
 348
 349                 if (ps_mode > SETTING_PSMODE_NORMAL) {
 350                         WARN("ps mode is on(%d), Not turn on Wi-Fi", ps_mode);
 351                         return -EPERM;
 352                 }
 353         } else {
 354                 WARN("Not permitted Wi-Fi on");
 355                 return -EPERM;
 356         }
 357
 358         err = wifi_power_driver_and_supplicant(TRUE);
 359         if (err < 0 && err != -EALREADY)
 360                 return err;
 361
 362         err = _set_connman_technology_power(TRUE);
 363
 364         if (device_picker_test == TRUE)
 365                 netconfig_wifi_enable_device_picker_test();
 366
 367         return err;
 368 }
 369
 370 static void __wearable_wifi_use_changed_cb(keynode_t* node, void* user_data)
 371 {
 372         int wifi_state;
 373         int wifi_use = 1;
 374
 375         if (netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state) < 0) {
 376                 ERR("Fail to get VCONFKEY_WIFI_STATE");
 377                 return;
 378         }
 379
 380         if (node != NULL)
 381                 wifi_use = vconf_keynode_get_int(node);
 382         else
 383                 netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use);
 384
 385         if (wifi_use > 0) {
 386                 DBG("wifi use on");
 387                 if (wifi_state > VCONFKEY_WIFI_OFF) {
 388                         WARN("Wi-Fi is already turned on");
 389                         return;
 390                 }
 391                 wifi_power_on_wearable(TRUE);
 392         } else {
 393                 ERR("## wifi use [OFF]");
 394                 if (wifi_state == VCONFKEY_WIFI_OFF) {
 395                         WARN("Wi-Fi is already turned off");
 396                         return;
 397                 }
 398
 399                 wifi_power_off();
 400         }
 401 }
 402 #else
 403 static void __netconfig_wifi_restrict_mode(keynode_t *node, void *user_data)
 404 {
 405         int wifi_state = 0, restricted = 0;
 406         int wifi_off_by_restricted = 0;
 407
 408         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, &wifi_off_by_restricted);
 409
 410         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 411
 412         if (node != NULL)
 413                 restricted = vconf_keynode_get_bool(node);
 414         else
 415                 netconfig_vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE, &restricted);
 416
 417         DBG("network restricted mode %s", restricted > 0 ? "ON" : "OFF");
 418         DBG("Wi-Fi state %d, Wi-Fi was off by restricted mode %s", wifi_state,
 419                         wifi_off_by_restricted ? "Yes" : "No");
 420
 421         if (restricted > 0) {
 422                 /* network restricted on */
 423                 if (wifi_state == VCONFKEY_WIFI_OFF)
 424                         return;
 425
 426                 wifi_power_off();
 427
 428                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, 1);
 429         } else {
 430                 /* network restricted off */
 431                 if (!wifi_off_by_restricted)
 432                         return;
 433
 434                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, 0);
 435
 436                 if (wifi_state > VCONFKEY_WIFI_OFF)
 437                         return;
 438
 439                 wifi_power_on();
 440         }
 441 }
 442 #endif
 443
 444 static void __netconfig_wifi_airplane_mode(keynode_t *node, void *user_data)
 445 {
 446         int wifi_state = 0, airplane_state = 0;
 447         int wifi_off_by_airplane = 0;
 448
 449         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, &wifi_off_by_airplane);
 450
 451 #if defined TIZEN_WEARABLE
 452         netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_state);
 453 #else
 454         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 455 #endif
 456
 457         if (node != NULL)
 458                 airplane_state = vconf_keynode_get_bool(node);
 459         else
 460                 netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_FLIGHT_MODE, &airplane_state);
 461
 462         DBG("airplane mode %s (prev:%d)", airplane_state > 0 ? "ON" : "OFF", airplane_mode);
 463         DBG("Wi-Fi state(or use) %d, Wi-Fi was off by flight mode %s", wifi_state,
 464                         wifi_off_by_airplane ? "Yes" : "No");
 465
 466         if (airplane_mode == airplane_state)
 467                 return ;
 468
 469         airplane_mode = airplane_state;
 470
 471         if (airplane_state > 0) {
 472                 /* airplane mode on */
 473                 if (wifi_state == VCONFKEY_WIFI_OFF)
 474                         return;
 475
 476                 wifi_power_off();
 477
 478                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 1);
 479 #if defined TIZEN_WEARABLE
 480                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 0);
 481 #endif
 482         } else {
 483                 /* airplane mode off */
 484                 if (!wifi_off_by_airplane)
 485                         return;
 486
 487                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
 488 #if defined TIZEN_WEARABLE
 489                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 1);
 490 #else
 491                 if (wifi_state > VCONFKEY_WIFI_OFF)
 492                         return;
 493
 494                 wifi_power_on();
 495 #endif
 496         }
 497 }
 498
 499 static void __emergency_mode_changed_cb(keynode_t *node, void *user_data)
 500 {
 501         int wifi_state = 0, emergency = 0;
 502         int wifi_off_by_emergency = 0;
 503 #if !defined TIZEN_WEARABLE
 504         int emergency_by_fmm = 0;
 505 #endif
 506 #if defined TIZEN_WEARABLE
 507         int wifi_use = 1;
 508 #endif
 509
 510         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, &wifi_off_by_emergency);
 511         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 512
 513 #if !defined TIZEN_WEARABLE
 514         netconfig_vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_PERMIT_WITH_LCD_OFF_LIMIT, &emergency_by_fmm);
 515         DBG("emergency mode by Find My Mobile (%d)", emergency_by_fmm);
 516         if (emergency_by_fmm == 1)
 517                 return;
 518 #endif
 519
 520         if (node != NULL)
 521                 emergency = vconf_keynode_get_int(node);
 522         else
 523                 netconfig_vconf_get_int(VCONFKEY_SETAPPL_PSMODE, &emergency);
 524
 525         DBG("emergency mode %s", emergency > SETTING_PSMODE_POWERFUL ? "ON" : "OFF");
 526         DBG("Wi-Fi state %d, Wi-Fi was off by emergency mode %s", wifi_state, wifi_off_by_emergency ? "Yes" : "No");
 527
 528 #if defined TIZEN_WEARABLE
 529         if (emergency == SETTING_PSMODE_WEARABLE) {
 530                 /* basic power saving mode on */
 531         } else if (emergency == SETTING_PSMODE_WEARABLE_ENHANCED) {
 532                 /* enhanced power saving mode on */
 533                 netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use);
 534                 psmode_wifi_use = wifi_use;
 535                 if (wifi_use != 0)
 536                         netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 0);
 537
 538                 if (wifi_state == VCONFKEY_WIFI_OFF)
 539                         return;
 540
 541                 wifi_power_off();
 542                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 1);
 543         } else {
 544                 /* power saving mode off */
 545                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, psmode_wifi_use);
 546                 if (!wifi_off_by_emergency)
 547                         return;
 548
 549                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 0);
 550                 if (wifi_state > VCONFKEY_WIFI_OFF)
 551                         return;
 552
 553                 wifi_power_on_wearable(TRUE);
 554         }
 555 #else
 556         if (emergency > SETTING_PSMODE_POWERFUL) {
 557                 /* emergency mode on */
 558                 if (wifi_state == VCONFKEY_WIFI_OFF)
 559                         return;
 560
 561                 wifi_power_off();
 562
 563                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 1);
 564         } else {
 565                 /* emergency mode off */
 566                 if (!wifi_off_by_emergency)
 567                         return;
 568
 569                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 0);
 570
 571                 if (wifi_state > VCONFKEY_WIFI_OFF)
 572                         return;
 573
 574                 wifi_power_on();
 575         }
 576 #endif
 577
 578 }
 579
 580 static void __pm_state_changed_cb(keynode_t* node, void* user_data)
 581 {
 582         int new_state = -1;
 583         int wifi_state = 0;
 584         static int prev_state = VCONFKEY_PM_STATE_NORMAL;
 585
 586         if (netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state) < 0) {
 587                 ERR("Fail to get VCONFKEY_WIFI_STATE");
 588                 return;
 589         }
 590
 591         /* PM state
 592          *      VCONFKEY_PM_STATE_NORMAL = 1,
 593          *      VCONFKEY_PM_STATE_LCDDIM,
 594          *      VCONFKEY_PM_STATE_LCDOFF,
 595          *      VCONFKEY_PM_STATE_SLEEP
 596          */
 597         if (node != NULL)
 598                 new_state = vconf_keynode_get_int(node);
 599         else
 600                 netconfig_vconf_get_int(VCONFKEY_PM_STATE, &new_state);
 601
 602         DBG("wifi state: %d (0 off / 1 on / 2 connected)", wifi_state);
 603         DBG("Old PM state: %d, current: %d (1 normal / 2 lcddim / 3 lcdoff / 4 sleep)", prev_state, new_state);
 604
 605         if ((new_state == VCONFKEY_PM_STATE_NORMAL) && (prev_state >= VCONFKEY_PM_STATE_LCDOFF)) {
 606                 netconfig_wifi_bgscan_stop();
 607                 netconfig_wifi_bgscan_set_interval(SCAN_EXPONENTIAL_MIN);
 608                 netconfig_wifi_bgscan_start(TRUE);
 609         }
 610
 611         prev_state = new_state;
 612 }
 613
 614 static void __netconfig_telephony_ready_changed_cb(keynode_t * node, void *data)
 615 {
 616         int telephony_ready = 0;
 617
 618         if (node != NULL)
 619                 telephony_ready = vconf_keynode_get_bool(node);
 620         else
 621                 netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_READY, &telephony_ready);
 622
 623         if (telephony_ready != 0) {
 624                 if (netconfig_tapi_check_sim_state() == FALSE) {
 625                         DBG("Sim is not initialized yet.");
 626
 627                         goto done;
 628                 }
 629         } else
 630                 return;
 631
 632         DBG("Turn Wi-Fi on automatically");
 633
 634 #if defined TIZEN_WEARABLE
 635         wifi_power_on_wearable(TRUE);
 636 #else
 637         wifi_power_on();
 638 #endif
 639
 640 done:
 641         vconf_ignore_key_changed(VCONFKEY_TELEPHONY_READY, __netconfig_telephony_ready_changed_cb);
 642 }
 643
 644 int wifi_power_driver_and_supplicant(gboolean enable)
 645 {
 646         /* There are 3 thumb rules for Wi-Fi power management
 647          *   1. Do not make exposed API to control wpa_supplicant and driver directly.
 648          *      It probably breaks ConnMan technology operation.
 649          *
 650          *   2. Do not remove driver and wpa_supplicant if ConnMan already enabled.
 651          *      It breaks ConnMan technology operation.
 652          *
 653          *   3. Final the best rule: make it as simple as possible.
 654          *      Simple code enables easy maintenance and reduces logical errors.
 655          */
 656         if (enable == TRUE) {
 657                 return _load_driver_and_supplicant();
 658         } else {
 659                 if (connman_wifi_technology_state == TRUE)
 660                         return -ENOSYS;
 661
 662                 return _remove_driver_and_supplicant();
 663         }
 664 }
 665
 666 void wifi_power_disable_technology_state_by_only_connman_signal(void)
 667 {
 668         /* Important: it's only done by ConnMan technology signal update */
 669         connman_wifi_technology_state = FALSE;
 670 }
 671
 672 void wifi_power_recover_firmware(void)
 673 {
 674         wifi_firmware_recovery_mode = TRUE;
 675
 676         netconfig_wifi_bgscan_stop();
 677
 678         wifi_power_off();
 679 }
 680
 681 int wifi_power_on(void)
 682 {
 683         int err = 0;
 684         wifi_tech_state_e tech_state;
 685
 686         tech_state = wifi_state_get_technology_state();
 687         if (tech_state >= NETCONFIG_WIFI_TECH_POWERED) {
 688                 /* There can be a scenario where wifi is automatically *
 689                  * activated by connman if wifi was powered in last boot. *
 690                  * So we should update connman_wifi_technology_state variable *
 691                  * if it is found that wifi_tech_state variable is *
 692                  * NETCONFIG_WIFI_TECH_POWERED and connman_wifi_technology_state *
 693                  * variable is FALSE. Earlier connman_wifi_technology_state *
 694                  * variable was only updated when wifi was Powered on from *
 695                  * net-config resulting in variable not getting updated. *
 696                  * This caused wifi to not get deactivated after reboot if *
 697                  * last power state was activated */
 698                 ERR("Net-Config WiFi connman technology state %d",
 699                                 connman_wifi_technology_state);
 700                 if (connman_wifi_technology_state == FALSE)
 701                         connman_wifi_technology_state = TRUE;
 702                 return -EALREADY;
 703         }
 704
 705         if (__is_wifi_restricted() == TRUE)
 706                 return -EPERM;
 707
 708         if (netconfig_is_wifi_tethering_on() == TRUE) {
 709                 /* TODO: Wi-Fi tethering turns off here */
 710                 /* return TRUE; */
 711                 ERR("Failed to turn tethering off");
 712                 return -EBUSY;
 713         }
 714
 715         err = wifi_power_driver_and_supplicant(TRUE);
 716         if (err < 0 && err != -EALREADY)
 717                 return err;
 718
 719         err = _set_connman_technology_power(TRUE);
 720
 721         return err;
 722 }
 723
 724 int wifi_power_off(void)
 725 {
 726         int err;
 727
 728         err = _set_connman_technology_power(FALSE);
 729         if (err == -EALREADY)
 730                 wifi_state_update_power_state(FALSE);
 731
 732         return 0;
 733 }
 734
 735 #if defined TIZEN_WEARABLE
 736 int wifi_power_on_wearable(gboolean device_picker_test)
 737 {
 738         int err = 0;
 739         int wifi_use = 1;
 740         wifi_tech_state_e tech_state;
 741
 742         tech_state = wifi_state_get_technology_state();
 743         if (tech_state >= NETCONFIG_WIFI_TECH_POWERED)
 744                 return -EALREADY;
 745
 746         if (netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use) < 0) {
 747                 ERR("Fail to get VCONF_WIFI_WEARABLE_WIFI_USE");
 748                 return -EIO;
 749         }
 750
 751         if (wifi_use == 0) {
 752                 WARN("VCONF_WIFI_WEARABLE_WIFI_USE is OFF");
 753                 return -EPERM;
 754         }
 755
 756         err = wifi_power_driver_and_supplicant(TRUE);
 757         if (err < 0 && err != -EALREADY)
 758                 return err;
 759
 760         err = _set_connman_technology_power(TRUE);
 761
 762         if (device_picker_test == TRUE)
 763                 netconfig_wifi_enable_device_picker_test();
 764
 765         return err;
 766 }
 767 #endif
 768
 769 void wifi_power_initialize(void)
 770 {
 771         int wifi_last_power_state = 0;
 772
 773         /* Initialize Airplane mode */
 774         netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_FLIGHT_MODE, &airplane_mode);
 775         DBG("Airplane[%s]", airplane_mode > 0 ? "ON" : "OFF");
 776
 777         /* Update the last Wi-Fi power state */
 778         netconfig_vconf_get_int(VCONF_WIFI_LAST_POWER_STATE, &wifi_last_power_state);
 779         if (wifi_last_power_state > VCONFKEY_WIFI_OFF) {
 780                 if (TIZEN_TELEPHONY_ENABLE) {
 781                         int telephony_ready = 0;
 782                         netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_READY, &telephony_ready);
 783                         if (telephony_ready == 0) {
 784                                 DBG("Telephony API is not initialized yet");
 785                                 vconf_notify_key_changed(VCONFKEY_TELEPHONY_READY,
 786                                                 __netconfig_telephony_ready_changed_cb, NULL);
 787                         } else {
 788                                 if (netconfig_tapi_check_sim_state() == FALSE)
 789                                         DBG("SIM is not initialized yet");
 790                         }
 791                 }
 792                 DBG("Turn Wi-Fi on automatically");
 793 #if defined TIZEN_WEARABLE
 794                 wifi_power_on_wearable(TRUE);
 795 #else
 796                 wifi_power_on();
 797 #endif
 798         }
 799
 800 #if defined TIZEN_WEARABLE
 801         vconf_notify_key_changed(VCONF_WIFI_WEARABLE_WIFI_USE, __wearable_wifi_use_changed_cb, NULL);
 802
 803         vconf_notify_key_changed(VCONFKEY_TELEPHONY_FLIGHT_MODE,
 804                         __netconfig_wifi_airplane_mode, NULL);
 805 #else
 806         vconf_notify_key_changed(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE,
 807                         __netconfig_wifi_restrict_mode, NULL);
 808         vconf_notify_key_changed(VCONFKEY_TELEPHONY_FLIGHT_MODE,
 809                         __netconfig_wifi_airplane_mode, NULL);
 810 #endif
 811
 812         vconf_notify_key_changed(VCONFKEY_SETAPPL_PSMODE, __emergency_mode_changed_cb, NULL);
 813         vconf_notify_key_changed(VCONFKEY_PM_STATE, __pm_state_changed_cb, NULL);
 814 }
 815
 816 void wifi_power_deinitialize(void)
 817 {
 818 }
 819
 820 gboolean handle_load_driver(Wifi *wifi,
 821                 GDBusMethodInvocation *context, gboolean device_picker_test)
 822 {
 823         int err;
 824
 825         DBG("Wi-Fi power on requested");
 826
 827         g_return_val_if_fail(wifi != NULL, FALSE);
 828
 829         if (!netconfig_dpm_update_from_wifi()) {
 830                 DBG("DPM policy restricts Wi-Fi");
 831                 netconfig_error_permission_denied(context);
 832                 return TRUE;
 833         }
 834
 835         if (TIZEN_WLAN_BOARD_SPRD)
 836                 wifi_firmware_download();
 837
 838 #if defined TIZEN_WEARABLE
 839         err = wifi_power_on_wearable(device_picker_test);
 840 #else
 841         err = wifi_power_on();
 842
 843         if (device_picker_test == TRUE)
 844                 netconfig_wifi_enable_device_picker_test();
 845 #endif
 846         if (err < 0) {
 847                 if (err == -EINPROGRESS)
 848                         netconfig_error_inprogress(context);
 849                 else if (err == -EALREADY)
 850                         netconfig_error_already_exists(context);
 851                 else if (err == -EPERM)
 852                         netconfig_error_permission_denied(context);
 853                 else
 854                         netconfig_error_wifi_driver_failed(context);
 855
 856                 return TRUE;
 857         }
 858
 859
 860         netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
 861         __netconfig_set_wifi_bssid();
 862
 863         wifi_complete_load_driver(wifi, context);
 864         return TRUE;
 865 }
 866
 867 gboolean handle_remove_driver(Wifi *wifi, GDBusMethodInvocation *context)
 868 {
 869         int err;
 870
 871         DBG("Wi-Fi power off requested");
 872
 873         g_return_val_if_fail(wifi != NULL, FALSE);
 874
 875         err = wifi_power_off();
 876         if (err < 0) {
 877                 if (err == -EINPROGRESS)
 878                         netconfig_error_inprogress(context);
 879                 else if (err == -EALREADY)
 880                         netconfig_error_already_exists(context);
 881                 else if (err == -EPERM)
 882                         netconfig_error_permission_denied(context);
 883                 else
 884                         netconfig_error_wifi_driver_failed(context);
 885                 return TRUE;
 886         }
 887
 888         netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
 889
 890         wifi_complete_remove_driver(wifi, context);
 891         return TRUE;
 892 }
 893
 894 gboolean handle_load_p2p_driver(Wifi *wifi, GDBusMethodInvocation *context)
 895 {
 896         ERR("Deprecated");
 897
 898         wifi_complete_load_p2p_driver(wifi, context);
 899         return TRUE;
 900 }
 901
 902 gboolean handle_remove_p2p_driver(Wifi *wifi, GDBusMethodInvocation *context)
 903 {
 904         ERR("Deprecated");
 905
 906         wifi_complete_remove_p2p_driver(wifi, context);
 907         return TRUE;
 908 }
 909
 910 static int __netconfig_get_random_mac(unsigned char *mac_buf, int mac_len)
 911 {
 912         DBG("Generate Random Mac address of ethernet");
 913         FILE *fp;
 914         int rc;
 915
 916         fp = fopen(OS_RANDOM_FILE, "rb");
 917
 918         if (fp == NULL) {
 919                 ERR("Could not open /dev/urandom");
 920                 return -1;
 921         }
 922         rc = fread(mac_buf, 1, mac_len, fp);
 923         if (fp)
 924                 fclose(fp);
 925
 926         return rc != mac_len ? -1 : 0;
 927 }
 928
 929 void __netconfig_set_ether_macaddr()
 930 {
 931         DBG("Set wired Mac address ");
 932         char *mac_addr = NULL;
 933         char rand_addr[WLAN_MAC_ADDR_MAX];
 934         int rv = -1;
 935
 936         mac_addr = vconf_get_str(VCONF_ETH_MAC_ADDRESS);
 937         if (mac_addr == NULL) {
 938                 DBG("vconf_get_str Failed\n");
 939                 return;
 940         }
 941         /* Checking Invalid MAC Address */
 942         if ((strlen(mac_addr) == 0)) {
 943                 ERR("Failed to get valid MAC Address from vconf");
 944                 /*Generate the Random Mac address*/
 945                 unsigned char rand_mac_add[ETH_MAC_ADDR_SIZE+1];
 946
 947                 if (__netconfig_get_random_mac(rand_mac_add, ETH_MAC_ADDR_SIZE) == -1) {
 948
 949                         ERR("Could not generate the Random Mac address");
 950                         free(mac_addr);
 951                         return;
 952                 }
 953
 954                 rand_mac_add[0] &= 0xFE; /*Clear multicase bit*/
 955                 rand_mac_add[0] |= 0x02; /*set local assignment bit*/
 956
 957                 /*Set the Mac address in Vconf*/
 958                 snprintf(rand_addr, WLAN_MAC_ADDR_MAX, "%x:%x:%x:%x:%x:%x",
 959                                 rand_mac_add[0], rand_mac_add[1],
 960                                 rand_mac_add[2], rand_mac_add[3],
 961                                 rand_mac_add[4], rand_mac_add[5]);
 962
 963                 netconfig_set_vconf_str(VCONF_ETH_MAC_ADDRESS, rand_addr);
 964         } else { /* Valid MAC address */
 965                 g_strlcpy(rand_addr, mac_addr, WLAN_MAC_ADDR_MAX);
 966         }
 967
 968         DBG("MAC Address of eth0 [%s]", rand_addr);
 969         const char *path = NET_EXEC_PATH;
 970         char *const args[] = { "/sbin/ifconfig", "eth0", "hw",
 971                 "ether", rand_addr, "up", NULL};
 972         char *const envs[] = { NULL };
 973         rv = netconfig_execute_file(path, args, envs);
 974
 975         if (rv < 0)
 976                 ERR("Unable to execute system command");
 977         free(mac_addr);
 978
 979 }