src/wifi-power.c

   1 /*
   2  * Network Configuration Module
   3  *
   4  * Copyright (c) 2000 - 2012 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  * http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  *
  18  */
  19
  20 #include <errno.h>
  21 #include <vconf.h>
  22 #include <vconf-keys.h>
  23 #include <ITapiSim.h>
  24 #include <TapiUtility.h>
  25 #include <stdio.h>
  26 #include <tzplatform_config.h>
  27
  28 #if defined TIZEN_P2P_ENABLE && !defined WLAN_CONCURRENT_MODE
  29 #include <wifi-direct.h>
  30 #endif
  31
  32 #include "log.h"
  33 #include "util.h"
  34 #include "netdbus.h"
  35 #include "neterror.h"
  36 #include "wifi-wps.h"
  37 #include "wifi-power.h"
  38 #include "wifi-state.h"
  39 #include "wifi-tel-intf.h"
  40 #include "netsupplicant.h"
  41 #include "network-state.h"
  42 #include "network-dpm.h"
  43 #include "wifi-firmware.h"
  44 #include "wifi-background-scan.h"
  45
  46
  47 #define WLAN_SUPPLICANT_SCRIPT          "/usr/sbin/wpa_supp.sh"
  48 #define P2P_SUPPLICANT_SCRIPT           "/usr/sbin/p2p_supp.sh"
  49
  50 #define VCONF_WIFI_OFF_STATE_BY_AIRPLANE        "file/private/wifi/wifi_off_by_airplane"
  51 #define VCONF_WIFI_OFF_STATE_BY_RESTRICTED      "file/private/wifi/wifi_off_by_restricted"
  52 #define VCONF_WIFI_OFF_STATE_BY_EMERGENCY       "file/private/wifi/wifi_off_by_emergency"
  53 #if defined TIZEN_WEARABLE
  54 #define VCONF_WIFI_WEARABLE_WIFI_USE                    "db/private/wifi/wearable_wifi_use"
  55 #endif
  56 #if !defined TIZEN_WEARABLE
  57 #define VCONFKEY_SETAPPL_NETWORK_PERMIT_WITH_LCD_OFF_LIMIT      "db/setting/network_with_lcd_off_limit"
  58 #endif
  59
  60 #define WLAN_MAC_INFO               tzplatform_mkpath(TZ_SYS_ETC, "/.mac.info")
  61 #define WLAN_MAC_ADDRESS_FILEPATH   "/sys/class/net/wlan0/address"
  62 #define WLAN_MAC_ADDR_MAX           20
  63 #define VCONF_WIFI_BSSID_ADDRESS        "db/wifi/bssid_address"
  64
  65 #if defined TIZEN_TV
  66 #define ETH_MAC_ADDR_SIZE 6
  67 #define VCONF_ETH_MAC_ADDRESS  "db/dnet/mac_address"
  68 #define NET_EXEC_PATH "/sbin/ifconfig"
  69 #define OS_RANDOM_FILE "/dev/urandom"
  70 #endif
  71
  72 static gboolean connman_wifi_technology_state = FALSE;
  73 static gboolean wifi_firmware_recovery_mode = FALSE;
  74 static int airplane_mode = 0;
  75
  76 #if defined TIZEN_WEARABLE
  77 static int psmode_wifi_use = 1;
  78 #endif
  79
  80 static gboolean __is_wifi_restricted(void)
  81 {
  82 #if defined TIZEN_WEARABLE
  83         return FALSE;
  84 #endif
  85         int restricted_mode = 0;
  86
  87         netconfig_vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE, &restricted_mode);
  88         if (restricted_mode != 0) {
  89                 DBG("network restricted mode[%d]", restricted_mode);
  90                 return TRUE;
  91         }
  92
  93         return FALSE;
  94 }
  95
  96 static void __technology_reply(GObject *source_object, GAsyncResult *res, gpointer user_data)
  97 {
  98         GVariant *reply;
  99         GDBusConnection *conn = NULL;
 100         GError *error = NULL;
 101
 102         conn = G_DBUS_CONNECTION(source_object);
 103         reply = g_dbus_connection_call_finish(conn, res, &error);
 104
 105         if (reply == NULL) {
 106                 if (error != NULL) {
 107                         if (g_strstr_len(error->message, strlen(error->message),
 108                                         CONNMAN_ERROR_INTERFACE ".AlreadyEnabled") != NULL) {
 109                                 wifi_state_update_power_state(TRUE);
 110                         } else if (g_strstr_len(error->message, strlen(error->message),
 111                                         CONNMAN_ERROR_INTERFACE ".AlreadyDisabled") != NULL) {
 112                                 wifi_state_update_power_state(FALSE);
 113                         } else {
 114                                 ERR("Fail to request status [%d: %s]", error->code, error->message);
 115                                 wifi_state_update_power_state(FALSE);
 116                         }
 117                         g_error_free(error);
 118                 } else {
 119                         ERR("Fail to request status");
 120                         wifi_state_update_power_state(FALSE);
 121                 }
 122         } else {
 123                 DBG("Successfully requested");
 124         }
 125
 126         g_variant_unref(reply);
 127         netconfig_gdbus_pending_call_unref();
 128 }
 129
 130 static int __execute_supplicant(gboolean enable)
 131 {
 132         int rv = 0;
 133         const char *path = WLAN_SUPPLICANT_SCRIPT;
 134         char *const args_enable[] = { "/usr/sbin/wpa_supp.sh", "start", NULL };
 135         char *const args_disable[] = { "/usr/sbin/wpa_supp.sh", "stop", NULL };
 136         char *const envs[] = { NULL };
 137         static gboolean enabled = FALSE;
 138
 139         if (enabled == enable)
 140                 return -EALREADY;
 141
 142         if (enable == TRUE)
 143                 rv = netconfig_execute_file(path, args_enable, envs);
 144         else
 145                 rv = netconfig_execute_file(path, args_disable, envs);
 146         if (rv < 0)
 147                 return -EIO;
 148
 149         DBG("wpa_supplicant %s", enable == TRUE ? "started" : "stopped");
 150
 151         enabled = enable;
 152
 153         return 0;
 154 }
 155
 156 #if defined TIZEN_P2P_ENABLE && defined WLAN_CONCURRENT_MODE
 157 static int __netconfig_p2p_supplicant(gboolean enable)
 158 {
 159         int rv = 0;
 160         const char *path = P2P_SUPPLICANT_SCRIPT;
 161         char *const args_enable[] = { P2P_SUPPLICANT_SCRIPT, "start", NULL };
 162         char *const args_disable[] = { P2P_SUPPLICANT_SCRIPT, "stop", NULL };
 163         char *const envs[] = { NULL };
 164
 165         if (enable == TRUE)
 166                 rv = netconfig_execute_file(path, args_enable, envs);
 167         else
 168                 rv = netconfig_execute_file(path, args_disable, envs);
 169         if (rv < 0)
 170                 return -EIO;
 171
 172         DBG("p2p_supplicant %s", enable == TRUE ? "started" : "stopped");
 173
 174         return 0;
 175 }
 176 #endif
 177
 178 void netconfig_wifi_recover_firmware(void)
 179 {
 180         wifi_firmware_recovery_mode = TRUE;
 181
 182         netconfig_wifi_bgscan_stop();
 183
 184         wifi_power_off();
 185 }
 186
 187 #if defined TIZEN_P2P_ENABLE && !defined WLAN_CONCURRENT_MODE
 188 static void __netconfig_wifi_direct_state_cb(int error_code, wifi_direct_device_state_e device_state, void *user_data)
 189 {
 190         int err;
 191
 192         wifi_direct_unset_device_state_changed_cb();
 193         wifi_direct_deinitialize();
 194
 195         if (device_state == WIFI_DIRECT_DEVICE_STATE_DEACTIVATED) {
 196                 err = wifi_power_on();
 197                 if (err < 0) {
 198                         if (err == -EALREADY)
 199                                 wifi_state_update_power_state(TRUE);
 200                         else
 201                                 wifi_state_emit_power_failed();
 202                 }
 203         }
 204 }
 205
 206 static gboolean __netconfig_wifi_direct_power_off(void)
 207 {
 208         DBG("Wi-Fi direct is turning off");
 209
 210         if (wifi_direct_initialize() < 0)
 211                 return FALSE;
 212
 213         if (wifi_direct_set_device_state_changed_cb(__netconfig_wifi_direct_state_cb, NULL) < 0)
 214                 return FALSE;
 215
 216         if (wifi_direct_deactivate() < 0)
 217                 return FALSE;
 218
 219         return TRUE;
 220 }
 221 #endif
 222
 223 static int _load_driver_and_supplicant(void)
 224 {
 225         int err = 0;
 226         wifi_tech_state_e tech_state;
 227
 228         tech_state = wifi_state_get_technology_state();
 229         if (tech_state > NETCONFIG_WIFI_TECH_OFF)
 230                 return -EALREADY;
 231
 232         err = __execute_supplicant(TRUE);
 233         if (err < 0 && err != -EALREADY)
 234                 return err;
 235
 236         err = netconfig_wifi_firmware(NETCONFIG_WIFI_STA, TRUE);
 237         if (err < 0 && err != -EALREADY) {
 238                 __execute_supplicant(FALSE);
 239                 return err;
 240         }
 241
 242         wifi_state_set_tech_state(NETCONFIG_WIFI_TECH_WPS_ONLY);
 243
 244         return 0;
 245 }
 246
 247 static int _remove_driver_and_supplicant(void)
 248 {
 249         int err = 0;
 250
 251         if (wifi_firmware_recovery_mode != TRUE &&
 252                                         netconfig_wifi_is_wps_enabled() == TRUE) {
 253                 DBG("Wi-Fi WPS mode");
 254                 return 0;
 255         }
 256
 257         err = netconfig_wifi_firmware(NETCONFIG_WIFI_STA, FALSE);
 258         if (err < 0 && err != -EALREADY)
 259                 return err;
 260
 261         err = __execute_supplicant(FALSE);
 262         if (err < 0 && err != -EALREADY)
 263                 return err;
 264
 265         wifi_state_set_tech_state(NETCONFIG_WIFI_TECH_OFF);
 266
 267         if (wifi_firmware_recovery_mode == TRUE) {
 268                 if (wifi_power_on() < 0)
 269                         ERR("Failed to recover Wi-Fi firmware");
 270
 271                 wifi_firmware_recovery_mode = FALSE;
 272         }
 273
 274         return 0;
 275 }
 276
 277 static int _set_connman_technology_power(gboolean enable)
 278 {
 279         gboolean reply = FALSE;
 280         GVariant *param0 = NULL;
 281         GVariant *params = NULL;
 282         char key[] = "Powered";
 283         gboolean value_enable = TRUE;
 284         gboolean value_disable = FALSE;
 285
 286         if (connman_wifi_technology_state == enable)
 287                 return -EALREADY;
 288
 289         if (enable == TRUE)
 290                 param0 = g_variant_new_boolean(value_enable);
 291         else
 292                 param0 = g_variant_new_boolean(value_disable);
 293
 294         params = g_variant_new("(sv)", key, param0);
 295
 296         reply = netconfig_invoke_dbus_method_nonblock(CONNMAN_SERVICE,
 297                                         CONNMAN_WIFI_TECHNOLOGY_PREFIX, CONNMAN_TECHNOLOGY_INTERFACE,
 298                                         "SetProperty", params, __technology_reply);
 299
 300         if (reply != TRUE) {
 301                 ERR("Fail to set technology %s", enable == TRUE ? "enable" : "disable");
 302                 return -ESRCH;
 303         }
 304
 305         /* If Wi-Fi powered off,
 306          * Do not remove Wi-Fi driver until ConnMan technology state updated
 307          */
 308         if (enable == TRUE)
 309                 connman_wifi_technology_state = enable;
 310
 311         /* To be keep safe, early disable Wi-Fi tech state */
 312         if (enable != TRUE)
 313                 wifi_state_set_tech_state(NETCONFIG_WIFI_TECH_WPS_ONLY);
 314
 315         return 0;
 316 }
 317
 318 static void __netconfig_set_wifi_bssid(void)
 319 {
 320         int rv = 0;
 321         char bssid[WLAN_MAC_ADDR_MAX];
 322
 323         FILE *fp = fopen(WLAN_MAC_INFO, "r");
 324
 325         if (fp == NULL) {
 326                 ERR("Fail to open %s", WLAN_MAC_INFO);
 327                 fp = fopen(WLAN_MAC_ADDRESS_FILEPATH, "r");
 328                 if (fp == NULL) {
 329                         ERR("Fail to open %s", WLAN_MAC_ADDRESS_FILEPATH);
 330                         return;
 331                 }
 332         }
 333
 334         fseek(fp, 0L, SEEK_SET);
 335         rv = fscanf(fp, "%17s", bssid);
 336
 337         if (rv < 0)
 338                 ERR("Fail to read bssid");
 339
 340         netconfig_set_vconf_str(VCONF_WIFI_BSSID_ADDRESS, bssid);
 341
 342         fclose(fp);
 343 }
 344
 345 int netconfig_wifi_driver_and_supplicant(gboolean enable)
 346 {
 347         /* There are 3 thumb rules for Wi-Fi power management
 348          *   1. Do not make exposed API to control wpa_supplicant and driver directly.
 349          *      It probably breaks ConnMan technology operation.
 350          *
 351          *   2. Do not remove driver and wpa_supplicant if ConnMan already enabled.
 352          *      It breaks ConnMan technology operation.
 353          *
 354          *   3. Final the best rule: make it as simple as possible.
 355          *      Simple code enables easy maintenance and reduces logical errors.
 356          */
 357         if (enable == TRUE)
 358                 return _load_driver_and_supplicant();
 359         else {
 360                 if (connman_wifi_technology_state == TRUE)
 361                         return -ENOSYS;
 362
 363                 return _load_driver_and_supplicant();
 364         }
 365 }
 366
 367 void netconfig_wifi_disable_technology_state_by_only_connman_signal(void)
 368 {
 369         /* Important: it's only done by ConnMan technology signal update */
 370         connman_wifi_technology_state = FALSE;
 371 }
 372
 373 #if defined TIZEN_WEARABLE
 374 int netconfig_wifi_on_wearable(gboolean device_picker_test)
 375 {
 376         int err = 0;
 377         int wifi_use;
 378         int ps_mode;
 379
 380         if (netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use) < 0) {
 381                 ERR("Fail to get VCONF_WIFI_WEARABLE_WIFI_USE");
 382                 return -EIO;
 383         }
 384
 385         if (wifi_use > 0) {
 386                 if (netconfig_vconf_get_int(VCONFKEY_SETAPPL_PSMODE, &ps_mode) < 0) {
 387                         ERR("Fail to get VCONFKEY_SETAPPL_PSMODE");
 388                         return -EIO;
 389                 }
 390
 391                 if (ps_mode > SETTING_PSMODE_NORMAL) {
 392                         WARN("ps mode is on(%d), Not turn on Wi-Fi", ps_mode);
 393                         return -EPERM;
 394                 }
 395         } else {
 396                 WARN("Not permitted Wi-Fi on");
 397                 return -EPERM;
 398         }
 399
 400         err = wifi_power_driver_and_supplicant(TRUE);
 401         if (err < 0 && err != -EALREADY)
 402                 return err;
 403
 404         err = _set_connman_technology_power(TRUE);
 405
 406         if (device_picker_test == TRUE)
 407                 netconfig_wifi_enable_device_picker_test();
 408
 409         return err;
 410 }
 411
 412 static void __wearable_wifi_use_changed_cb(keynode_t* node, void* user_data)
 413 {
 414         int wifi_state;
 415         int wifi_use = 1;
 416
 417         if (netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state) < 0) {
 418                 ERR("Fail to get VCONFKEY_WIFI_STATE");
 419                 return;
 420         }
 421
 422         if (node != NULL)
 423                 wifi_use = vconf_keynode_get_int(node);
 424         else
 425                 netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use);
 426
 427         if (wifi_use > 0) {
 428                 DBG("wifi use on");
 429                 if (wifi_state > VCONFKEY_WIFI_OFF) {
 430                         WARN("Wi-Fi is already turned on");
 431                         return;
 432                 }
 433                 wifi_power_on_wearable(TRUE);
 434         } else {
 435                 ERR("## wifi use [OFF]");
 436                 if (wifi_state == VCONFKEY_WIFI_OFF) {
 437                         WARN("Wi-Fi is already turned off");
 438                         return;
 439                 }
 440
 441                 wifi_power_off();
 442         }
 443 }
 444 #else
 445 static void __netconfig_wifi_restrict_mode(keynode_t *node, void *user_data)
 446 {
 447         int wifi_state = 0, restricted = 0;
 448         int wifi_off_by_restricted = 0;
 449
 450         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, &wifi_off_by_restricted);
 451
 452         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 453
 454         if (node != NULL)
 455                 restricted = vconf_keynode_get_bool(node);
 456         else
 457                 netconfig_vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE, &restricted);
 458
 459         DBG("network restricted mode %s", restricted > 0 ? "ON" : "OFF");
 460         DBG("Wi-Fi state %d, Wi-Fi was off by restricted mode %s", wifi_state,
 461                         wifi_off_by_restricted ? "Yes" : "No");
 462
 463         if (restricted > 0) {
 464                 /* network restricted on */
 465                 if (wifi_state == VCONFKEY_WIFI_OFF)
 466                         return;
 467
 468                 wifi_power_off();
 469
 470                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, 1);
 471         } else {
 472                 /* network restricted off */
 473                 if (!wifi_off_by_restricted)
 474                         return;
 475
 476                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, 0);
 477
 478                 if (wifi_state > VCONFKEY_WIFI_OFF)
 479                         return;
 480
 481                 wifi_power_on();
 482         }
 483 }
 484 #endif
 485
 486 static void __netconfig_wifi_airplane_mode(keynode_t *node, void *user_data)
 487 {
 488         int wifi_state = 0, airplane_state = 0;
 489         int wifi_off_by_airplane = 0;
 490
 491         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, &wifi_off_by_airplane);
 492
 493 #if defined TIZEN_WEARABLE
 494         netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_state)
 495 #else
 496         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 497 #endif
 498
 499         if (node != NULL)
 500                 airplane_state = vconf_keynode_get_bool(node);
 501         else
 502                 netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_FLIGHT_MODE, &airplane_state);
 503
 504         DBG("airplane mode %s (prev:%d)", airplane_state > 0 ? "ON" : "OFF", airplane_mode);
 505         DBG("Wi-Fi state(or use) %d, Wi-Fi was off by flight mode %s", wifi_state,
 506                         wifi_off_by_airplane ? "Yes" : "No");
 507
 508         if (airplane_mode == airplane_state)
 509                 return ;
 510
 511         airplane_mode = airplane_state;
 512
 513         if (airplane_state > 0) {
 514                 /* airplane mode on */
 515                 if (wifi_state == VCONFKEY_WIFI_OFF)
 516                         return;
 517
 518                 wifi_power_off();
 519
 520                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 1);
 521 #if defined TIZEN_WEARABLE
 522                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 0);
 523 #endif
 524         } else {
 525                 /* airplane mode off */
 526                 if (!wifi_off_by_airplane)
 527                         return;
 528
 529                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
 530 #if defined TIZEN_WEARABLE
 531                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 1);
 532 #else
 533                 if (wifi_state > VCONFKEY_WIFI_OFF)
 534                         return;
 535
 536                 wifi_power_on();
 537 #endif
 538         }
 539 }
 540
 541 static void __emergency_mode_changed_cb(keynode_t *node, void *user_data)
 542 {
 543         int wifi_state = 0, emergency = 0;
 544         int wifi_off_by_emergency = 0;
 545 #if !defined TIZEN_WEARABLE
 546         int emergency_by_fmm = 0;
 547 #endif
 548 #if defined TIZEN_WEARABLE
 549         int wifi_use = 1;
 550 #endif
 551
 552         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, &wifi_off_by_emergency);
 553         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 554
 555 #if !defined TIZEN_WEARABLE
 556         netconfig_vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_PERMIT_WITH_LCD_OFF_LIMIT, &emergency_by_fmm);
 557         DBG("emergency mode by Find My Mobile (%d)", emergency_by_fmm);
 558         if (emergency_by_fmm == 1)
 559                 return;
 560 #endif
 561
 562         if (node != NULL)
 563                 emergency = vconf_keynode_get_int(node);
 564         else
 565                 netconfig_vconf_get_int(VCONFKEY_SETAPPL_PSMODE, &emergency);
 566
 567         DBG("emergency mode %s", emergency > SETTING_PSMODE_POWERFUL ? "ON" : "OFF");
 568         DBG("Wi-Fi state %d, Wi-Fi was off by emergency mode %s", wifi_state, wifi_off_by_emergency ? "Yes" : "No");
 569
 570 #if defined TIZEN_WEARABLE
 571         if (emergency == SETTING_PSMODE_WEARABLE) {
 572                 /* basic power saving mode on */
 573         } else if (emergency == SETTING_PSMODE_WEARABLE_ENHANCED) {
 574                 /* enhanced power saving mode on */
 575                 netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use);
 576                 psmode_wifi_use = wifi_use;
 577                 if (wifi_use != 0)
 578                         netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 0);
 579
 580                 if (wifi_state == VCONFKEY_WIFI_OFF)
 581                         return;
 582
 583                 wifi_power_off();
 584                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 1);
 585         } else {
 586                 /* power saving mode off */
 587                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, psmode_wifi_use);
 588                 if (!wifi_off_by_emergency)
 589                         return;
 590
 591                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 0);
 592                 if (wifi_state > VCONFKEY_WIFI_OFF)
 593                         return;
 594
 595                 wifi_power_on_wearable(TRUE);
 596         }
 597 #else
 598         if (emergency > SETTING_PSMODE_POWERFUL) {
 599                 /* emergency mode on */
 600                 if (wifi_state == VCONFKEY_WIFI_OFF)
 601                         return;
 602
 603                 wifi_power_off();
 604
 605                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 1);
 606         } else {
 607                 /* emergency mode off */
 608                 if (!wifi_off_by_emergency)
 609                         return;
 610
 611                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 0);
 612
 613                 if (wifi_state > VCONFKEY_WIFI_OFF)
 614                         return;
 615
 616                 wifi_power_on();
 617         }
 618 #endif
 619
 620 }
 621
 622 static void __pm_state_changed_cb(keynode_t* node, void* user_data)
 623 {
 624         int new_state = -1;
 625         int wifi_state = 0;
 626         static int prev_state = VCONFKEY_PM_STATE_NORMAL;
 627
 628         if (netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state) < 0) {
 629                 ERR("Fail to get VCONFKEY_WIFI_STATE");
 630                 return;
 631         }
 632
 633         /* PM state
 634          *      VCONFKEY_PM_STATE_NORMAL = 1,
 635          *      VCONFKEY_PM_STATE_LCDDIM,
 636          *      VCONFKEY_PM_STATE_LCDOFF,
 637          *      VCONFKEY_PM_STATE_SLEEP
 638          */
 639         if (node != NULL)
 640                 new_state = vconf_keynode_get_int(node);
 641         else
 642                 netconfig_vconf_get_int(VCONFKEY_PM_STATE, &new_state);
 643
 644         DBG("wifi state: %d (0 off / 1 on / 2 connected)", wifi_state);
 645         DBG("Old PM state: %d, current: %d", prev_state, new_state);
 646
 647         if ((new_state == VCONFKEY_PM_STATE_NORMAL) && (prev_state >= VCONFKEY_PM_STATE_LCDOFF)) {
 648                 netconfig_wifi_bgscan_stop();
 649                 netconfig_wifi_bgscan_start(TRUE);
 650         }
 651
 652         prev_state = new_state;
 653 }
 654
 655 #if defined TIZEN_TELEPHONY_ENABLE
 656 static void _tapi_noti_sim_status_cb(TapiHandle *handle, const char *noti_id,
 657                                                                                 void *data, void *user_data)
 658 {
 659         TelSimCardStatus_t *status = data;
 660
 661         if (*status == TAPI_SIM_STATUS_SIM_INIT_COMPLETED) {
 662                 DBG("Turn Wi-Fi on automatically");
 663 #if defined TIZEN_WEARABLE
 664                 wifi_power_on_wearable(TRUE);
 665 #else
 666                 wifi_power_on();
 667 #endif
 668                 netconfig_tel_deinit();
 669         }
 670 }
 671
 672 static gboolean netconfig_tapi_check_sim_state(void)
 673 {
 674         int ret, card_changed;
 675         TelSimCardStatus_t status = TAPI_SIM_STATUS_UNKNOWN;
 676         TapiHandle *tapi_handle = NULL;
 677
 678         tapi_handle = (TapiHandle *)netconfig_tel_init();
 679         if (tapi_handle == NULL) {
 680                 ERR("Failed to tapi init");
 681                 return FALSE;
 682         }
 683
 684         ret = tel_get_sim_init_info(tapi_handle, &status, &card_changed);
 685         if (ret != TAPI_API_SUCCESS) {
 686                 ERR("tel_get_sim_init_info() Failed : [%d]", ret);
 687                 netconfig_tel_deinit();
 688                 return FALSE;
 689         }
 690
 691         switch (status) {
 692         case TAPI_SIM_STATUS_UNKNOWN:
 693         case TAPI_SIM_STATUS_CARD_ERROR:
 694         case TAPI_SIM_STATUS_CARD_NOT_PRESENT:
 695         case TAPI_SIM_STATUS_CARD_BLOCKED:
 696         case TAPI_SIM_STATUS_SIM_INIT_COMPLETED:
 697                 break;
 698         case TAPI_SIM_STATUS_SIM_PIN_REQUIRED:
 699         case TAPI_SIM_STATUS_SIM_INITIALIZING:
 700         case TAPI_SIM_STATUS_SIM_PUK_REQUIRED:
 701         case TAPI_SIM_STATUS_SIM_LOCK_REQUIRED:
 702         case TAPI_SIM_STATUS_SIM_NCK_REQUIRED:
 703         case TAPI_SIM_STATUS_SIM_NSCK_REQUIRED:
 704         case TAPI_SIM_STATUS_SIM_SPCK_REQUIRED:
 705         case TAPI_SIM_STATUS_SIM_CCK_REQUIRED:
 706                 tel_register_noti_event(tapi_handle, TAPI_NOTI_SIM_STATUS,
 707                                 _tapi_noti_sim_status_cb, NULL);
 708                 return FALSE;
 709         default:
 710                 ERR("not defined status(%d)", status);
 711                 break;
 712         }
 713
 714         netconfig_tel_deinit();
 715
 716         return TRUE;
 717 }
 718
 719 static void __netconfig_telephony_ready_changed_cb(keynode_t * node, void *data)
 720 {
 721         int telephony_ready = 0;
 722
 723         if (node != NULL)
 724                 telephony_ready = vconf_keynode_get_bool(node);
 725         else
 726                 netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_READY, &telephony_ready);
 727
 728         if (telephony_ready != 0) {
 729                 if (netconfig_tapi_check_sim_state() == FALSE) {
 730                         DBG("Sim is not initialized yet.");
 731
 732                         goto done;
 733                 }
 734         } else
 735                 return;
 736
 737         DBG("Turn Wi-Fi on automatically");
 738
 739 #if defined TIZEN_WEARABLE
 740         wifi_power_on_wearable(TRUE);
 741 #else
 742         wifi_power_on();
 743 #endif
 744
 745 done:
 746         vconf_ignore_key_changed(VCONFKEY_TELEPHONY_READY, __netconfig_telephony_ready_changed_cb);
 747 }
 748 #endif
 749
 750 int wifi_power_driver_and_supplicant(gboolean enable)
 751 {
 752         /* There are 3 thumb rules for Wi-Fi power management
 753          *   1. Do not make exposed API to control wpa_supplicant and driver directly.
 754          *      It probably breaks ConnMan technology operation.
 755          *
 756          *   2. Do not remove driver and wpa_supplicant if ConnMan already enabled.
 757          *      It breaks ConnMan technology operation.
 758          *
 759          *   3. Final the best rule: make it as simple as possible.
 760          *      Simple code enables easy maintenance and reduces logical errors.
 761          */
 762         if (enable == TRUE) {
 763                 return _load_driver_and_supplicant();
 764         } else {
 765                 if (connman_wifi_technology_state == TRUE)
 766                         return -ENOSYS;
 767
 768                 return _remove_driver_and_supplicant();
 769         }
 770 }
 771
 772 void wifi_power_disable_technology_state_by_only_connman_signal(void)
 773 {
 774         /* Important: it's only done by ConnMan technology signal update */
 775         connman_wifi_technology_state = FALSE;
 776 }
 777
 778 void wifi_power_recover_firmware(void)
 779 {
 780         wifi_firmware_recovery_mode = TRUE;
 781
 782         netconfig_wifi_bgscan_stop();
 783
 784         wifi_power_off();
 785 }
 786
 787 int wifi_power_on(void)
 788 {
 789         int err = 0;
 790         wifi_tech_state_e tech_state;
 791
 792         tech_state = wifi_state_get_technology_state();
 793         if (tech_state >= NETCONFIG_WIFI_TECH_POWERED)
 794                 return -EALREADY;
 795
 796         if (__is_wifi_restricted() == TRUE)
 797                 return -EPERM;
 798
 799         if (netconfig_is_wifi_tethering_on() == TRUE) {
 800                 /* TODO: Wi-Fi tethering turns off here */
 801                 /* return TRUE; */
 802                 ERR("Failed to turn tethering off");
 803                 return -EBUSY;
 804         }
 805
 806 #if defined TIZEN_P2P_ENABLE && !defined WLAN_CONCURRENT_MODE
 807         if (netconfig_is_wifi_direct_on() == TRUE) {
 808                 if (__netconfig_wifi_direct_power_off() == TRUE)
 809                         return -EINPROGRESS;
 810                 else {
 811                         ERR("Failed to turn Wi-Fi direct off");
 812                         return -EBUSY;
 813                 }
 814         }
 815 #endif
 816
 817         err = wifi_power_driver_and_supplicant(TRUE);
 818         if (err < 0 && err != -EALREADY)
 819                 return err;
 820
 821         err = _set_connman_technology_power(TRUE);
 822
 823         return err;
 824 }
 825
 826 int wifi_power_off(void)
 827 {
 828         int err;
 829
 830         err = _set_connman_technology_power(FALSE);
 831         if (err == -EALREADY)
 832                 wifi_state_update_power_state(FALSE);
 833
 834         return 0;
 835 }
 836
 837 #if defined TIZEN_WEARABLE
 838 int wifi_power_on_wearable(gboolean device_picker_test)
 839 {
 840         int err = 0;
 841         int wifi_use = 1;
 842         wifi_tech_state_e tech_state;
 843
 844         tech_state = wifi_state_get_technology_state();
 845         if (tech_state >= NETCONFIG_WIFI_TECH_POWERED)
 846                 return -EALREADY;
 847
 848         if (netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use) < 0) {
 849                 ERR("Fail to get VCONF_WIFI_WEARABLE_WIFI_USE");
 850                 return -EIO;
 851         }
 852
 853         if (wifi_use == 0) {
 854                 WARN("VCONF_WIFI_WEARABLE_WIFI_USE is OFF");
 855                 return -EPERM;
 856         }
 857
 858         err = wifi_power_driver_and_supplicant(TRUE);
 859         if (err < 0 && err != -EALREADY)
 860                 return err;
 861
 862         err = _set_connman_technology_power(TRUE);
 863
 864         if (device_picker_test == TRUE)
 865                 netconfig_wifi_enable_device_picker_test();
 866
 867         return err;
 868 }
 869 #endif
 870
 871 void wifi_power_initialize(void)
 872 {
 873         int wifi_last_power_state = 0;
 874
 875         /* Initialize Airplane mode */
 876         netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_FLIGHT_MODE, &airplane_mode);
 877         DBG("Airplane[%s]", airplane_mode > 0 ? "ON" : "OFF");
 878
 879         /* Update the last Wi-Fi power state */
 880         netconfig_vconf_get_int(VCONF_WIFI_LAST_POWER_STATE, &wifi_last_power_state);
 881         if (wifi_last_power_state > VCONFKEY_WIFI_OFF) {
 882 #if defined TIZEN_TELEPHONY_ENABLE
 883                 int telephony_ready = 0;
 884                 netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_READY, &telephony_ready);
 885                 if (telephony_ready == 0) {
 886                         DBG("Telephony API is not initialized yet");
 887                         vconf_notify_key_changed(VCONFKEY_TELEPHONY_READY,
 888                                         __netconfig_telephony_ready_changed_cb, NULL);
 889                 } else {
 890                         if (netconfig_tapi_check_sim_state() == FALSE)
 891                                 DBG("SIM is not initialized yet");
 892                 }
 893 #endif
 894                 DBG("Turn Wi-Fi on automatically");
 895 #if defined TIZEN_WEARABLE
 896                 wifi_power_on_wearable(TRUE);
 897 #else
 898                 wifi_power_on();
 899 #endif
 900         }
 901
 902 #if defined TIZEN_WEARABLE
 903         vconf_notify_key_changed(VCONF_WIFI_WEARABLE_WIFI_USE, __wearable_wifi_use_changed_cb, NULL);
 904
 905         vconf_notify_key_changed(VCONFKEY_TELEPHONY_FLIGHT_MODE,
 906                         __netconfig_wifi_airplane_mode, NULL);
 907 #else
 908         vconf_notify_key_changed(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE,
 909                         __netconfig_wifi_restrict_mode, NULL);
 910         vconf_notify_key_changed(VCONFKEY_TELEPHONY_FLIGHT_MODE,
 911                         __netconfig_wifi_airplane_mode, NULL);
 912 #endif
 913
 914         vconf_notify_key_changed(VCONFKEY_SETAPPL_PSMODE, __emergency_mode_changed_cb, NULL);
 915         vconf_notify_key_changed(VCONFKEY_PM_STATE, __pm_state_changed_cb, NULL);
 916 }
 917
 918 void wifi_power_deinitialize(void)
 919 {
 920 }
 921
 922 gboolean handle_load_driver(Wifi *wifi,
 923                 GDBusMethodInvocation *context, gboolean device_picker_test)
 924 {
 925         int err;
 926
 927         DBG("Wi-Fi power on requested");
 928
 929         g_return_val_if_fail(wifi != NULL, FALSE);
 930
 931         if (!netconfig_dpm_update_from_wifi()) {
 932                 DBG("DPM policy restricts Wi-Fi");
 933                 netconfig_error_permission_denied(context);
 934                 return TRUE;
 935         }
 936
 937 #if defined TIZEN_WLAN_BOARD_SPRD
 938         wifi_firmware_download();
 939 #endif
 940
 941 #if defined TIZEN_WEARABLE
 942         err = wifi_power_on_wearable(device_picker_test);
 943 #else
 944         err = wifi_power_on();
 945
 946         if (device_picker_test == TRUE)
 947                 netconfig_wifi_enable_device_picker_test();
 948 #endif
 949         if (err < 0) {
 950                 if (err == -EINPROGRESS)
 951                         netconfig_error_inprogress(context);
 952                 else if (err == -EALREADY)
 953                         netconfig_error_already_exists(context);
 954                 else if (err == -EPERM)
 955                         netconfig_error_permission_denied(context);
 956                 else
 957                         netconfig_error_wifi_driver_failed(context);
 958
 959                 return TRUE;
 960         }
 961
 962
 963         netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
 964         __netconfig_set_wifi_bssid();
 965
 966         wifi_complete_load_driver(wifi, context);
 967         return TRUE;
 968 }
 969
 970 gboolean handle_remove_driver(Wifi *wifi, GDBusMethodInvocation *context)
 971 {
 972         int err;
 973
 974         DBG("Wi-Fi power off requested");
 975
 976         g_return_val_if_fail(wifi != NULL, FALSE);
 977
 978         err = wifi_power_off();
 979         if (err < 0) {
 980                 if (err == -EINPROGRESS)
 981                         netconfig_error_inprogress(context);
 982                 else if (err == -EALREADY)
 983                         netconfig_error_already_exists(context);
 984                 else if (err == -EPERM)
 985                         netconfig_error_permission_denied(context);
 986                 else
 987                         netconfig_error_wifi_driver_failed(context);
 988                 return TRUE;
 989         }
 990
 991         netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
 992
 993         wifi_complete_remove_driver(wifi, context);
 994         return TRUE;
 995 }
 996
 997 gboolean handle_load_p2p_driver(Wifi *wifi, GDBusMethodInvocation *context)
 998 {
 999         ERR("Deprecated");
1000
1001         wifi_complete_load_p2p_driver(wifi, context);
1002         return TRUE;
1003 }
1004
1005 gboolean handle_remove_p2p_driver(Wifi *wifi, GDBusMethodInvocation *context)
1006 {
1007         ERR("Deprecated");
1008
1009         wifi_complete_remove_p2p_driver(wifi, context);
1010         return TRUE;
1011 }
1012
1013 #if defined TIZEN_TV
1014 static int __netconfig_get_random_mac(unsigned char *mac_buf, int mac_len)
1015 {
1016         DBG("Generate Random Mac address of ethernet");
1017         FILE *fp;
1018         int rc;
1019
1020         fp = fopen(OS_RANDOM_FILE, "rb");
1021
1022         if (fp == NULL) {
1023                 ERR("Could not open /dev/urandom");
1024                 return -1;
1025         }
1026         rc = fread(mac_buf, 1, mac_len, fp);
1027         if (fp)
1028                 fclose(fp);
1029
1030         return rc != mac_len ? -1 : 0;
1031 }
1032
1033 void __netconfig_set_ether_macaddr()
1034 {
1035         DBG("Set wired Mac address ");
1036         char *mac_addr = NULL;
1037         char rand_addr[WLAN_MAC_ADDR_MAX];
1038         int rv = -1;
1039
1040         mac_addr = vconf_get_str(VCONF_ETH_MAC_ADDRESS);
1041         if (mac_addr == NULL) {
1042                 DBG("vconf_get_str Failed\n");
1043                 return;
1044         }
1045         /* Checking Invalid MAC Address */
1046         if ((strlen(mac_addr) == 0)) {
1047                 ERR("Failed to get valid MAC Address from vconf");
1048                 /*Generate the Random Mac address*/
1049                 unsigned char rand_mac_add[ETH_MAC_ADDR_SIZE+1];
1050
1051                 if (__netconfig_get_random_mac(rand_mac_add, ETH_MAC_ADDR_SIZE) == -1) {
1052
1053                         ERR("Could not generate the Random Mac address");
1054                         g_free(mac_addr);
1055                         return;
1056                 }
1057
1058                 rand_mac_add[0] &= 0xFE; /*Clear multicase bit*/
1059                 rand_mac_add[0] |= 0x02; /*set local assignment bit*/
1060
1061                 /*Set the Mac address in Vconf*/
1062                 snprintf(rand_addr, WLAN_MAC_ADDR_MAX, "%x:%x:%x:%x:%x:%x",
1063                                 rand_mac_add[0], rand_mac_add[1],
1064                                 rand_mac_add[2], rand_mac_add[3],
1065                                 rand_mac_add[4], rand_mac_add[5]);
1066
1067                 netconfig_set_vconf_str(VCONF_ETH_MAC_ADDRESS, rand_addr);
1068         } else { /* Valid MAC address */
1069                 strncpy(rand_addr, mac_addr, strlen(mac_addr));
1070                 rand_addr[strlen(mac_addr)] = '\0';
1071         }
1072
1073         DBG("MAC Address of eth0 [%s]", rand_addr);
1074         const char *path = NET_EXEC_PATH;
1075         char *const args[] = { "/sbin/ifconfig", "eth0", "hw",
1076                 "ether", rand_addr, "up", NULL};
1077         char *const envs[] = { NULL };
1078         rv = netconfig_execute_file(path, args, envs);
1079
1080         if (rv < 0)
1081                 ERR("Unable to execute system command");
1082         g_free(mac_addr);
1083
1084 }
1085 #endif