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 #if defined TIZEN_WEARABLE
  51 #include <weconn.h>
  52 static weconn_h weconn_handle = NULL;
  53 #endif
  54
  55 #define VCONF_WIFI_OFF_STATE_BY_AIRPLANE        "file/private/wifi/wifi_off_by_airplane"
  56 #define VCONF_WIFI_OFF_STATE_BY_RESTRICTED      "file/private/wifi/wifi_off_by_restricted"
  57 #define VCONF_WIFI_OFF_STATE_BY_EMERGENCY       "file/private/wifi/wifi_off_by_emergency"
  58 #if defined TIZEN_WEARABLE
  59 #define VCONF_WIFI_WEARABLE_WIFI_USE                    "db/private/wifi/wearable_wifi_use"
  60 #endif
  61 #if !defined TIZEN_WEARABLE
  62 #define VCONFKEY_SETAPPL_NETWORK_PERMIT_WITH_LCD_OFF_LIMIT      "db/setting/network_with_lcd_off_limit"
  63 #endif
  64
  65 #define WLAN_MAC_INFO               tzplatform_mkpath(TZ_SYS_ETC, "/.mac.info")
  66 #define WLAN_MAC_ADDR_MAX           20
  67 #define VCONF_WIFI_BSSID_ADDRESS        "db/wifi/bssid_address"
  68
  69 #if defined TIZEN_TV
  70 #define ETH_MAC_ADDR_SIZE 6
  71 #define VCONF_ETH_MAC_ADDRESS  "db/dnet/mac_address"
  72 #define NET_EXEC_PATH "/sbin/ifconfig"
  73 #define OS_RANDOM_FILE "/dev/urandom"
  74 #endif
  75
  76 static gboolean connman_wifi_technology_state = FALSE;
  77 static gboolean wifi_firmware_recovery_mode = FALSE;
  78 static int airplane_mode = 0;
  79
  80 #if defined TIZEN_WEARABLE
  81 static int psmode_wifi_use = 1;
  82 #endif
  83
  84 static gboolean __is_wifi_restricted(void)
  85 {
  86 #if defined TIZEN_WEARABLE
  87         return FALSE;
  88 #endif
  89         int restricted_mode = 0;
  90
  91         vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE, &restricted_mode);
  92         if (restricted_mode != 0) {
  93                 DBG("network restricted mode[%d]", restricted_mode);
  94                 return TRUE;
  95         }
  96
  97         return FALSE;
  98 }
  99
 100 static void __technology_reply(GObject *source_object, GAsyncResult *res, gpointer user_data)
 101 {
 102         GVariant *reply;
 103         GDBusConnection *conn = NULL;
 104         GError *error = NULL;
 105
 106         conn = G_DBUS_CONNECTION(source_object);
 107         reply = g_dbus_connection_call_finish(conn, res, &error);
 108
 109         if (reply == NULL) {
 110                 if (error != NULL) {
 111                         if (g_strcmp0(error->message, CONNMAN_ERROR_INTERFACE ".AlreadyEnabled") == 0)
 112                                 wifi_state_update_power_state(TRUE);
 113                         else if (g_strcmp0(error->message, CONNMAN_ERROR_INTERFACE ".AlreadyDisabled") == 0)
 114                                 wifi_state_update_power_state(FALSE);
 115                         else
 116                                 ERR("Fail to request status [%d: %s]", error->code, error->message);
 117                         g_error_free(error);
 118                 } else {
 119                         ERR("Fail torequest status");
 120                 }
 121         } else {
 122                 DBG("Successfully requested");
 123         }
 124
 125         g_variant_unref(reply);
 126         netconfig_gdbus_pending_call_unref();
 127 }
 128
 129 static int __execute_supplicant(gboolean enable)
 130 {
 131         int rv = 0;
 132         const char *path = WLAN_SUPPLICANT_SCRIPT;
 133         char *const args_enable[] = { "/usr/sbin/wpa_supp.sh", "start", NULL };
 134         char *const args_disable[] = { "/usr/sbin/wpa_supp.sh", "stop", NULL };
 135         char *const envs[] = { NULL };
 136         static gboolean enabled = FALSE;
 137
 138         if (enabled == enable)
 139                 return -EALREADY;
 140
 141         if (enable == TRUE)
 142                 rv = netconfig_execute_file(path, args_enable, envs);
 143         else
 144                 rv = netconfig_execute_file(path, args_disable, envs);
 145         if (rv < 0)
 146                 return -EIO;
 147
 148         DBG("wpa_supplicant %s", enable == TRUE ? "started" : "stopped");
 149
 150         enabled = enable;
 151
 152         return 0;
 153 }
 154
 155 #if defined TIZEN_P2P_ENABLE && defined WLAN_CONCURRENT_MODE
 156 static int __netconfig_p2p_supplicant(gboolean enable)
 157 {
 158         int rv = 0;
 159         const char *path = P2P_SUPPLICANT_SCRIPT;
 160         char *const args_enable[] = { P2P_SUPPLICANT_SCRIPT, "start", NULL };
 161         char *const args_disable[] = { P2P_SUPPLICANT_SCRIPT, "stop", NULL };
 162         char *const envs[] = { NULL };
 163
 164         if (enable == TRUE)
 165                 rv = netconfig_execute_file(path, args_enable, envs);
 166         else
 167                 rv = netconfig_execute_file(path, args_disable, envs);
 168         if (rv < 0)
 169                 return -EIO;
 170
 171         DBG("p2p_supplicant %s", enable == TRUE ? "started" : "stopped");
 172
 173         return 0;
 174 }
 175 #endif
 176
 177 void netconfig_wifi_recover_firmware(void)
 178 {
 179         wifi_firmware_recovery_mode = TRUE;
 180
 181         netconfig_wifi_bgscan_stop();
 182
 183         wifi_power_off();
 184 }
 185
 186 #if defined TIZEN_P2P_ENABLE && !defined WLAN_CONCURRENT_MODE
 187 static void __netconfig_wifi_direct_state_cb(int error_code, wifi_direct_device_state_e device_state, void *user_data)
 188 {
 189         int err;
 190
 191         wifi_direct_unset_device_state_changed_cb();
 192         wifi_direct_deinitialize();
 193
 194         if (device_state == WIFI_DIRECT_DEVICE_STATE_DEACTIVATED) {
 195                 err = wifi_power_on();
 196                 if (err < 0) {
 197                         if (err == -EALREADY)
 198                                 wifi_state_update_power_state(TRUE);
 199                         else
 200                                 wifi_state_emit_power_failed();
 201                 }
 202         }
 203 }
 204
 205 static gboolean __netconfig_wifi_direct_power_off(void)
 206 {
 207         DBG("Wi-Fi direct is turning off");
 208
 209         if (wifi_direct_initialize() < 0)
 210                 return FALSE;
 211
 212         if (wifi_direct_set_device_state_changed_cb(__netconfig_wifi_direct_state_cb, NULL) < 0)
 213                 return FALSE;
 214
 215         if (wifi_direct_deactivate() < 0)
 216                 return FALSE;
 217
 218         return TRUE;
 219 }
 220 #endif
 221
 222 static int _load_driver_and_supplicant(void)
 223 {
 224         int err = 0;
 225         wifi_tech_state_e tech_state;
 226
 227         tech_state = wifi_state_get_technology_state();
 228         if (tech_state > NETCONFIG_WIFI_TECH_OFF)
 229                 return -EALREADY;
 230
 231         err = __execute_supplicant(TRUE);
 232         if (err < 0 && err != -EALREADY)
 233                 return err;
 234
 235         err = netconfig_wifi_firmware(NETCONFIG_WIFI_STA, TRUE);
 236         if (err < 0 && err != -EALREADY) {
 237                 __execute_supplicant(FALSE);
 238                 return err;
 239         }
 240
 241         wifi_state_set_tech_state(NETCONFIG_WIFI_TECH_WPS_ONLY);
 242
 243         return 0;
 244 }
 245
 246 static int _remove_driver_and_supplicant(void)
 247 {
 248         int err = 0;
 249
 250         if (wifi_firmware_recovery_mode != TRUE &&
 251                                         netconfig_wifi_is_wps_enabled() == TRUE) {
 252                 DBG("Wi-Fi WPS mode");
 253                 return 0;
 254         }
 255
 256         err = netconfig_wifi_firmware(NETCONFIG_WIFI_STA, FALSE);
 257         if (err < 0 && err != -EALREADY)
 258                 return err;
 259
 260         err = __execute_supplicant(FALSE);
 261         if (err < 0 && err != -EALREADY)
 262                 return err;
 263
 264         wifi_state_set_tech_state(NETCONFIG_WIFI_TECH_OFF);
 265
 266         if (wifi_firmware_recovery_mode == TRUE) {
 267                 if (wifi_power_on() < 0)
 268                         ERR("Failed to recover Wi-Fi firmware");
 269
 270                 wifi_firmware_recovery_mode = FALSE;
 271         }
 272
 273         return 0;
 274 }
 275
 276 static int _set_connman_technology_power(gboolean enable)
 277 {
 278         gboolean reply = FALSE;
 279         GVariant *param0 = NULL;
 280         GVariant *params = NULL;
 281         char key[] = "Powered";
 282         gboolean value_enable = TRUE;
 283         gboolean value_disable = FALSE;
 284
 285         if (connman_wifi_technology_state == enable)
 286                 return -EALREADY;
 287
 288         if (enable == TRUE)
 289                 param0 = g_variant_new_boolean(value_enable);
 290         else
 291                 param0 = g_variant_new_boolean(value_disable);
 292
 293         params = g_variant_new("(sv)", key, param0);
 294
 295         reply = netconfig_invoke_dbus_method_nonblock(CONNMAN_SERVICE,
 296                         CONNMAN_WIFI_TECHNOLOGY_PREFIX, CONNMAN_TECHNOLOGY_INTERFACE,
 297                         "SetProperty", params, __technology_reply);
 298
 299         if (reply != TRUE) {
 300                 ERR("Fail to set technology %s", enable == TRUE ? "enable" : "disable");
 301                 return -ESRCH;
 302         }
 303
 304         /* If Wi-Fi powered off,
 305          * Do not remove Wi-Fi driver until ConnMan technology state updated
 306          */
 307         if (enable == TRUE)
 308                 connman_wifi_technology_state = enable;
 309
 310         /* To be keep safe, early disable Wi-Fi tech state */
 311         if (enable != TRUE)
 312                 wifi_state_set_tech_state(NETCONFIG_WIFI_TECH_WPS_ONLY);
 313
 314         return 0;
 315 }
 316
 317 static void __netconfig_set_wifi_bssid(void)
 318 {
 319         int rv = 0;
 320         char bssid[WLAN_MAC_ADDR_MAX];
 321
 322         FILE *fp = fopen(WLAN_MAC_INFO, "r");
 323
 324         if (fp == NULL) {
 325                 ERR("Fail to open file");
 326                 return;
 327         }
 328
 329         fseek(fp, 0L, SEEK_SET);
 330         rv = fscanf(fp, "%17s", bssid);
 331
 332         if (rv < 0)
 333                 ERR("Fail to read bssid");
 334
 335         netconfig_set_vconf_str(VCONF_WIFI_BSSID_ADDRESS, bssid);
 336
 337         fclose(fp);
 338 }
 339
 340 int netconfig_wifi_driver_and_supplicant(gboolean enable)
 341 {
 342         /* There are 3 thumb rules for Wi-Fi power management
 343          *   1. Do not make exposed API to control wpa_supplicant and driver directly.
 344          *      It probably breaks ConnMan technology operation.
 345          *
 346          *   2. Do not remove driver and wpa_supplicant if ConnMan already enabled.
 347          *      It breaks ConnMan technology operation.
 348          *
 349          *   3. Final the best rule: make it as simple as possible.
 350          *      Simple code enables easy maintenance and reduces logical errors.
 351          */
 352         if (enable == TRUE)
 353                 return _load_driver_and_supplicant();
 354         else {
 355                 if (connman_wifi_technology_state == TRUE)
 356                         return -ENOSYS;
 357
 358                 return _load_driver_and_supplicant();
 359         }
 360 }
 361
 362 void netconfig_wifi_disable_technology_state_by_only_connman_signal(void)
 363 {
 364         /* Important: it's only done by ConnMan technology signal update */
 365         connman_wifi_technology_state = FALSE;
 366 }
 367
 368 int netconfig_wifi_on(void)
 369 {
 370         int err = 0;
 371         wifi_tech_state_e wifi_tech_state;
 372
 373         wifi_tech_state = wifi_state_get_technology_state();
 374         if (wifi_tech_state >= NETCONFIG_WIFI_TECH_POWERED)
 375                 return -EALREADY;
 376
 377         if (__is_wifi_restricted() == TRUE)
 378                 return -EPERM;
 379
 380         if (netconfig_is_wifi_tethering_on() == TRUE) {
 381                 /* TODO: Wi-Fi tethering turns off here */
 382                 /* return TRUE; */
 383                 ERR("Failed to turn tethering off");
 384                 return -EBUSY;
 385         }
 386
 387 #if defined TIZEN_P2P_ENABLE && !defined WLAN_CONCURRENT_MODE
 388         if (netconfig_is_wifi_direct_on() == TRUE) {
 389                 if (__netconfig_wifi_direct_power_off() == TRUE)
 390                         return -EINPROGRESS;
 391                 else {
 392                         ERR("Failed to turn Wi-Fi direct off");
 393                         return -EBUSY;
 394                 }
 395         }
 396 #endif
 397
 398         err = wifi_power_driver_and_supplicant(TRUE);
 399         if (err < 0 && err != -EALREADY)
 400                 return err;
 401
 402         err = _set_connman_technology_power(TRUE);
 403
 404         __netconfig_set_wifi_bssid();
 405
 406         return err;
 407 }
 408
 409 int netconfig_wifi_off(void)
 410 {
 411         int err;
 412
 413 #if defined TIZEN_P2P_ENABLE && defined WLAN_CONCURRENT_MODE
 414         __netconfig_p2p_supplicant(FALSE);
 415 #endif
 416
 417         err = _set_connman_technology_power(FALSE);
 418         if (err == -EALREADY)
 419                 wifi_state_update_power_state(FALSE);
 420
 421         return 0;
 422 }
 423
 424 #if defined TIZEN_WEARABLE
 425 int netconfig_wifi_on_wearable(gboolean device_picker_test)
 426 {
 427         int err = 0;
 428         int wifi_use;
 429         int ps_mode;
 430         enum netconfig_wifi_tech_state wifi_tech_state;
 431         weconn_service_state_e weconn_state;
 432
 433         wifi_tech_state = wifi_state_get_technology_state();
 434         if (wifi_tech_state >= NETCONFIG_WIFI_TECH_POWERED)
 435                 return -EALREADY;
 436
 437         err = weconn_get_service_state(weconn_handle, W_SERVICE_TYPE_BT,
 438                         &weconn_state);
 439         if (err == 0 && weconn_state == W_SERVICE_STATE_CONNECTED) {
 440                 WARN("Not permitted Wi-Fi on");
 441                 return -EPERM;
 442         }
 443
 444         if (vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use) < 0) {
 445                 ERR("Fail to get VCONF_WIFI_WEARABLE_WIFI_USE");
 446                 return -EIO;
 447         }
 448
 449         if (wifi_use > 0) {
 450                 if (vconf_get_int(VCONFKEY_SETAPPL_PSMODE, &ps_mode) < 0) {
 451                         ERR("Fail to get VCONFKEY_SETAPPL_PSMODE");
 452                         return -EIO;
 453                 }
 454
 455                 if (ps_mode > SETTING_PSMODE_NORMAL) {
 456                         WARN("ps mode is on(%d), Not turn on Wi-Fi", ps_mode);
 457                         return -EPERM;
 458                 }
 459         } else {
 460                 WARN("Not permitted Wi-Fi on");
 461                 return -EPERM;
 462         }
 463
 464         err = wifi_power_driver_and_supplicant(TRUE);
 465         if (err < 0 && err != -EALREADY)
 466                 return err;
 467
 468         err = _set_connman_technology_power(TRUE);
 469
 470         if (device_picker_test == TRUE)
 471                 netconfig_wifi_enable_device_picker_test();
 472
 473         return err;
 474 }
 475
 476 static void __weconn_service_state_changed_cb(weconn_service_state_e state, void *user_data)
 477 {
 478         if (state == W_SERVICE_STATE_CONNECTED) {
 479                 DBG("SAP is connected");
 480                 if (wifi_state > VCONFKEY_WIFI_OFF)
 481                         wifi_power_off();
 482         } else if (state == W_SERVICE_STATE_DISCONNECTED) {
 483                 DBG("SAP is disconnected");
 484                 wifi_power_on_wearable(FALSE);
 485         }
 486 }
 487
 488 static int _weconn_set_state_changed_cb(int service_type, void *user_data)
 489 {
 490         int ret;
 491
 492         if (weconn_handle) {
 493                 weconn_destroy(weconn_handle);
 494                 weconn_handle = NULL;
 495         }
 496
 497         ret = weconn_create(&weconn_handle);
 498         if (ret < 0) {
 499                 ERR("Failed weconn_create(%d)", ret);
 500                 return -1;
 501         }
 502
 503         ret = weconn_set_service_state_change_cb(weconn_handle, __weconn_service_state_changed_cb, service_type, user_data);
 504         if (ret < 0) {
 505                 ERR("Failed weconn_set_service_state_change_cb(%d)", ret);
 506                 return -1;
 507         }
 508
 509         return 0;
 510 }
 511
 512 static void __wearable_wifi_use_changed_cb(keynode_t* node, void* user_data)
 513 {
 514         int wifi_state;
 515         int wifi_use = 1;
 516         gboolean wifi_restrict = FALSE;
 517
 518         if (vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state) < 0) {
 519                 ERR("Fail to get VCONFKEY_WIFI_STATE");
 520                 return;
 521         }
 522
 523         if (node != NULL)
 524                 wifi_use = vconf_keynode_get_int(node);
 525         else
 526                 vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use);
 527
 528         if (wifi_use > 0) {
 529                 DBG("wifi use on");
 530                 if (wifi_state > VCONFKEY_WIFI_OFF) {
 531                         WARN("Wi-Fi is already turned on");
 532                         return;
 533                 }
 534
 535                 wifi_restrict = netconfig_is_wifi_allowed();
 536                 if (wifi_restrict == FALSE) {
 537                         DBG("launch wifi restrict popup");
 538                         netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 0);
 539                         wc_launch_syspopup(WC_POPUP_TYPE_WIFI_RESTRICT);
 540                 } else {
 541                         wifi_power_on_wearable(TRUE);
 542                 }
 543         } else {
 544                 ERR("## wifi use [OFF]");
 545                 if (wifi_state == VCONFKEY_WIFI_OFF) {
 546                         WARN("Wi-Fi is already turned off");
 547                         return;
 548                 }
 549
 550                 wifi_power_off();
 551         }
 552 }
 553
 554 #if defined TIZEN_TELEPHONY_ENABLE
 555 static void __netconfig_wifi_wearable_airplane_mode(keynode_t *node,
 556                 void *user_data)
 557 {
 558         int wifi_use = 0, airplane_state = 0;
 559         int wifi_use_off_by_airplane = 0;
 560
 561         vconf_get_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE,
 562                         &wifi_use_off_by_airplane);
 563
 564         vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use);
 565
 566         if (node != NULL)
 567                 airplane_state = vconf_keynode_get_bool(node);
 568         else
 569                 vconf_get_bool(VCONFKEY_TELEPHONY_FLIGHT_MODE, &airplane_state);
 570
 571         DBG("airplane mode %s (prev:%d)", airplane_state > 0 ? "ON" : "OFF", airplane_mode);
 572         DBG("Wi-Fi use %d, Wi-Fi was off by flight mode %s", wifi_use,
 573                         wifi_use_off_by_airplane ? "Yes" : "No");
 574
 575         if (airplane_mode == airplane_state)
 576                 return ;
 577
 578         airplane_mode = airplane_state;
 579
 580         if (airplane_state > 0) {
 581                 /* airplane mode on */
 582                 if (wifi_use == 0)
 583                         return;
 584
 585                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 1);
 586                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 0);
 587
 588         } else {
 589                 /* airplane mode off */
 590                 if (!wifi_use_off_by_airplane)
 591                         return;
 592
 593                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
 594                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 1);
 595         }
 596 }
 597 #endif
 598 #else
 599 #if defined TIZEN_TELEPHONY_ENABLE
 600 static void __netconfig_wifi_airplane_mode(keynode_t *node, void *user_data)
 601 {
 602         int wifi_state = 0, airplane_state = 0;
 603         int wifi_off_by_airplane = 0;
 604
 605         vconf_get_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, &wifi_off_by_airplane);
 606
 607         vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 608
 609         if (node != NULL)
 610                 airplane_state = vconf_keynode_get_bool(node);
 611         else
 612                 vconf_get_bool(VCONFKEY_TELEPHONY_FLIGHT_MODE, &airplane_state);
 613
 614         DBG("airplane mode %s (prev:%d)", airplane_state > 0 ? "ON" : "OFF", airplane_mode);
 615         DBG("Wi-Fi state %d, Wi-Fi was off by flight mode %s", wifi_state,
 616                         wifi_off_by_airplane ? "Yes" : "No");
 617
 618         if (airplane_mode == airplane_state)
 619                 return ;
 620
 621         airplane_mode = airplane_state;
 622
 623         if (airplane_state > 0) {
 624                 /* airplane mode on */
 625                 if (wifi_state == VCONFKEY_WIFI_OFF)
 626                         return;
 627
 628                 wifi_power_off();
 629
 630                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 1);
 631         } else {
 632                 /* airplane mode off */
 633                 if (!wifi_off_by_airplane)
 634                         return;
 635
 636                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
 637
 638                 if (wifi_state > VCONFKEY_WIFI_OFF)
 639                         return;
 640
 641                 wifi_power_on();
 642         }
 643 }
 644 #endif
 645
 646 static void __netconfig_wifi_restrict_mode(keynode_t *node, void *user_data)
 647 {
 648         int wifi_state = 0, restricted = 0;
 649         int wifi_off_by_restricted = 0;
 650
 651         vconf_get_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, &wifi_off_by_restricted);
 652
 653         vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 654
 655         if (node != NULL)
 656                 restricted = vconf_keynode_get_bool(node);
 657         else
 658                 vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE, &restricted);
 659
 660         DBG("network restricted mode %s", restricted > 0 ? "ON" : "OFF");
 661         DBG("Wi-Fi state %d, Wi-Fi was off by restricted mode %s", wifi_state,
 662                         wifi_off_by_restricted ? "Yes" : "No");
 663
 664         if (restricted > 0) {
 665                 /* network restricted on */
 666                 if (wifi_state == VCONFKEY_WIFI_OFF)
 667                         return;
 668
 669                 wifi_power_off();
 670
 671                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, 1);
 672         } else {
 673                 /* network restricted off */
 674                 if (!wifi_off_by_restricted)
 675                         return;
 676
 677                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, 0);
 678
 679                 if (wifi_state > VCONFKEY_WIFI_OFF)
 680                         return;
 681
 682                 wifi_power_on();
 683         }
 684 }
 685 #endif
 686
 687 static void __emergency_mode_changed_cb(keynode_t *node, void *user_data)
 688 {
 689         int wifi_state = 0, emergency = 0;
 690         int wifi_off_by_emergency = 0;
 691 #if !defined TIZEN_WEARABLE
 692         int emergency_by_fmm = 0;
 693 #endif
 694 #if defined TIZEN_WEARABLE
 695         int wifi_use = 1;
 696 #endif
 697
 698         vconf_get_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, &wifi_off_by_emergency);
 699         vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 700
 701 #if !defined TIZEN_WEARABLE
 702         vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_PERMIT_WITH_LCD_OFF_LIMIT, &emergency_by_fmm);
 703         DBG("emergency mode by Find My Mobile (%d)", emergency_by_fmm);
 704         if (emergency_by_fmm == 1)
 705                 return;
 706 #endif
 707
 708         if (node != NULL)
 709                 emergency = vconf_keynode_get_int(node);
 710         else
 711                 vconf_get_int(VCONFKEY_SETAPPL_PSMODE, &emergency);
 712
 713         DBG("emergency mode %s", emergency > SETTING_PSMODE_POWERFUL ? "ON" : "OFF");
 714         DBG("Wi-Fi state %d, Wi-Fi was off by emergency mode %s", wifi_state, wifi_off_by_emergency ? "Yes" : "No");
 715
 716 #if defined TIZEN_WEARABLE
 717         if (emergency == SETTING_PSMODE_WEARABLE) {
 718                 /* basic power saving mode on */
 719         } else if (emergency == SETTING_PSMODE_WEARABLE_ENHANCED) {
 720                 /* enhanced power saving mode on */
 721                 vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use);
 722                 psmode_wifi_use = wifi_use;
 723                 if (wifi_use != 0)
 724                         netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 0);
 725
 726                 if (wifi_state == VCONFKEY_WIFI_OFF)
 727                         return;
 728
 729                 wifi_power_off();
 730                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 1);
 731         } else {
 732                 /* power saving mode off */
 733                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, psmode_wifi_use);
 734                 if (!wifi_off_by_emergency)
 735                         return;
 736
 737                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 0);
 738                 if (wifi_state > VCONFKEY_WIFI_OFF)
 739                         return;
 740
 741                 wifi_power_on_wearable(TRUE);
 742         }
 743 #else
 744         if (emergency > SETTING_PSMODE_POWERFUL) {
 745                 /* emergency mode on */
 746                 if (wifi_state == VCONFKEY_WIFI_OFF)
 747                         return;
 748
 749                 wifi_power_off();
 750
 751                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 1);
 752         } else {
 753                 /* emergency mode off */
 754                 if (!wifi_off_by_emergency)
 755                         return;
 756
 757                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 0);
 758
 759                 if (wifi_state > VCONFKEY_WIFI_OFF)
 760                         return;
 761
 762                 wifi_power_on();
 763         }
 764 #endif
 765
 766 }
 767
 768 static void __pm_state_changed_cb(keynode_t* node, void* user_data)
 769 {
 770         int new_state = -1;
 771         int wifi_state = 0;
 772         static int prev_state = VCONFKEY_PM_STATE_NORMAL;
 773
 774         if (vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state) < 0) {
 775                 ERR("Fail to get VCONFKEY_WIFI_STATE");
 776                 return;
 777         }
 778
 779         /* PM state
 780          *      VCONFKEY_PM_STATE_NORMAL = 1,
 781          *      VCONFKEY_PM_STATE_LCDDIM,
 782          *      VCONFKEY_PM_STATE_LCDOFF,
 783          *      VCONFKEY_PM_STATE_SLEEP
 784          */
 785         if (node != NULL)
 786                 new_state = vconf_keynode_get_int(node);
 787         else
 788                 vconf_get_int(VCONFKEY_PM_STATE, &new_state);
 789
 790         DBG("wifi state: %d (0 off / 1 on / 2 connected)", wifi_state);
 791         DBG("Old PM state: %d, current: %d", prev_state, new_state);
 792
 793         if ((new_state == VCONFKEY_PM_STATE_NORMAL) && (prev_state >= VCONFKEY_PM_STATE_LCDOFF)) {
 794                 netconfig_wifi_bgscan_stop();
 795                 netconfig_wifi_bgscan_start(TRUE);
 796         }
 797
 798         prev_state = new_state;
 799 }
 800
 801 #if defined TIZEN_TELEPHONY_ENABLE
 802 static void _tapi_noti_sim_status_cb(TapiHandle *handle, const char *noti_id,
 803                                                                                 void *data, void *user_data)
 804 {
 805         TelSimCardStatus_t *status = data;
 806
 807         if (*status == TAPI_SIM_STATUS_SIM_INIT_COMPLETED) {
 808                 DBG("Turn Wi-Fi on automatically");
 809 #if defined TIZEN_WEARABLE
 810                 wifi_power_on_wearable(TRUE);
 811 #else
 812                 wifi_power_on();
 813 #endif
 814                 netconfig_tel_deinit();
 815         }
 816 }
 817
 818 static gboolean netconfig_tapi_check_sim_state(void)
 819 {
 820         int ret, card_changed;
 821         TelSimCardStatus_t status = TAPI_SIM_STATUS_UNKNOWN;
 822         TapiHandle *tapi_handle = NULL;
 823
 824         tapi_handle = (TapiHandle *)netconfig_tel_init();
 825         if (tapi_handle == NULL) {
 826                 ERR("Failed to tapi init");
 827                 return FALSE;
 828         }
 829
 830         ret = tel_get_sim_init_info(tapi_handle, &status, &card_changed);
 831         if (ret != TAPI_API_SUCCESS) {
 832                 ERR("tel_get_sim_init_info() Failed : [%d]", ret);
 833                 netconfig_tel_deinit();
 834                 return FALSE;
 835         }
 836
 837         switch (status) {
 838         case TAPI_SIM_STATUS_UNKNOWN:
 839         case TAPI_SIM_STATUS_CARD_ERROR:
 840         case TAPI_SIM_STATUS_CARD_NOT_PRESENT:
 841         case TAPI_SIM_STATUS_CARD_BLOCKED:
 842         case TAPI_SIM_STATUS_SIM_INIT_COMPLETED:
 843                 break;
 844         case TAPI_SIM_STATUS_SIM_PIN_REQUIRED:
 845         case TAPI_SIM_STATUS_SIM_INITIALIZING:
 846         case TAPI_SIM_STATUS_SIM_PUK_REQUIRED:
 847         case TAPI_SIM_STATUS_SIM_LOCK_REQUIRED:
 848         case TAPI_SIM_STATUS_SIM_NCK_REQUIRED:
 849         case TAPI_SIM_STATUS_SIM_NSCK_REQUIRED:
 850         case TAPI_SIM_STATUS_SIM_SPCK_REQUIRED:
 851         case TAPI_SIM_STATUS_SIM_CCK_REQUIRED:
 852                 tel_register_noti_event(tapi_handle, TAPI_NOTI_SIM_STATUS,
 853                                 _tapi_noti_sim_status_cb, NULL);
 854                 return FALSE;
 855         default:
 856                 ERR("not defined status(%d)", status);
 857                 break;
 858         }
 859
 860         netconfig_tel_deinit();
 861
 862         return TRUE;
 863 }
 864
 865 static void __netconfig_telephony_ready_changed_cb(keynode_t * node, void *data)
 866 {
 867         int telephony_ready = 0;
 868
 869         if (node != NULL)
 870                 telephony_ready = vconf_keynode_get_bool(node);
 871         else
 872                 vconf_get_bool(VCONFKEY_TELEPHONY_READY, &telephony_ready);
 873
 874         if (telephony_ready != 0) {
 875                 if (netconfig_tapi_check_sim_state() == FALSE) {
 876                         DBG("Sim is not initialized yet.");
 877
 878                         goto done;
 879                 }
 880         } else
 881                 return;
 882
 883         DBG("Turn Wi-Fi on automatically");
 884
 885 #if defined TIZEN_WEARABLE
 886         wifi_power_on_wearable(TRUE);
 887 #else
 888         wifi_power_on();
 889 #endif
 890
 891 done:
 892         vconf_ignore_key_changed(VCONFKEY_TELEPHONY_READY, __netconfig_telephony_ready_changed_cb);
 893 }
 894 #endif
 895
 896 int wifi_power_driver_and_supplicant(gboolean enable)
 897 {
 898         /* There are 3 thumb rules for Wi-Fi power management
 899          *   1. Do not make exposed API to control wpa_supplicant and driver directly.
 900          *      It probably breaks ConnMan technology operation.
 901          *
 902          *   2. Do not remove driver and wpa_supplicant if ConnMan already enabled.
 903          *      It breaks ConnMan technology operation.
 904          *
 905          *   3. Final the best rule: make it as simple as possible.
 906          *      Simple code enables easy maintenance and reduces logical errors.
 907          */
 908         if (enable == TRUE) {
 909                 return _load_driver_and_supplicant();
 910         } else {
 911                 if (connman_wifi_technology_state == TRUE)
 912                         return -ENOSYS;
 913
 914                 return _remove_driver_and_supplicant();
 915         }
 916 }
 917
 918 void wifi_power_disable_technology_state_by_only_connman_signal(void)
 919 {
 920         /* Important: it's only done by ConnMan technology signal update */
 921         connman_wifi_technology_state = FALSE;
 922 }
 923
 924 void wifi_power_recover_firmware(void)
 925 {
 926         wifi_firmware_recovery_mode = TRUE;
 927
 928         netconfig_wifi_bgscan_stop();
 929
 930         wifi_power_off();
 931 }
 932
 933 int wifi_power_on(void)
 934 {
 935         int err = 0;
 936         wifi_tech_state_e tech_state;
 937
 938         tech_state = wifi_state_get_technology_state();
 939         if (tech_state >= NETCONFIG_WIFI_TECH_POWERED)
 940                 return -EALREADY;
 941
 942         if (__is_wifi_restricted() == TRUE)
 943                 return -EPERM;
 944
 945         if (netconfig_is_wifi_tethering_on() == TRUE) {
 946                 /* TODO: Wi-Fi tethering turns off here */
 947                 /* return TRUE; */
 948                 ERR("Failed to turn tethering off");
 949                 return -EBUSY;
 950         }
 951
 952 #if defined TIZEN_P2P_ENABLE && !defined WLAN_CONCURRENT_MODE
 953         if (netconfig_is_wifi_direct_on() == TRUE) {
 954                 if (__netconfig_wifi_direct_power_off() == TRUE)
 955                         return -EINPROGRESS;
 956                 else {
 957                         ERR("Failed to turn Wi-Fi direct off");
 958                         return -EBUSY;
 959                 }
 960         }
 961 #endif
 962
 963         err = wifi_power_driver_and_supplicant(TRUE);
 964         if (err < 0 && err != -EALREADY)
 965                 return err;
 966
 967         err = _set_connman_technology_power(TRUE);
 968
 969         return err;
 970 }
 971
 972 int wifi_power_off(void)
 973 {
 974         int err;
 975
 976         err = _set_connman_technology_power(FALSE);
 977         if (err == -EALREADY)
 978                 wifi_state_update_power_state(FALSE);
 979
 980         return 0;
 981 }
 982
 983 #if defined TIZEN_WEARABLE
 984 int wifi_power_on_wearable(gboolean device_picker_test)
 985 {
 986         int err = 0;
 987         int wifi_use = 1;
 988         wifi_tech_state_e tech_state;
 989         weconn_service_state_e weconn_state;
 990
 991         tech_state = wifi_state_get_technology_state();
 992         if (tech_state >= NETCONFIG_WIFI_TECH_POWERED)
 993                 return -EALREADY;
 994
 995         err = weconn_get_service_state(weconn_handle, W_SERVICE_TYPE_BT, &weconn_state);
 996         if (err == 0 && weconn_state == W_SERVICE_STATE_CONNECTED) {
 997                 WARN("Not permitted Wi-Fi on");
 998                 return -EPERM;
 999         }
1000
1001         if (vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use) < 0) {
1002                 ERR("Fail to get VCONF_WIFI_WEARABLE_WIFI_USE");
1003                 return -EIO;
1004         }
1005
1006         if (wifi_use == 0) {
1007                 WARN("VCONF_WIFI_WEARABLE_WIFI_USE is OFF");
1008                 return -EPERM;
1009         }
1010
1011         err = wifi_power_driver_and_supplicant(TRUE);
1012         if (err < 0 && err != -EALREADY)
1013                 return err;
1014
1015         err = _set_connman_technology_power(TRUE);
1016
1017         if (device_picker_test == TRUE)
1018                 netconfig_wifi_enable_device_picker_test();
1019
1020         return err;
1021 }
1022 #endif
1023
1024 void wifi_power_initialize(void)
1025 {
1026         int wifi_last_power_state = 0;
1027
1028         /* Initialize Airplane mode */
1029 #if defined TIZEN_TELEPHONY_ENABLE
1030         vconf_get_bool(VCONFKEY_TELEPHONY_FLIGHT_MODE, &airplane_mode);
1031 #endif
1032         DBG("Airplane[%s]", airplane_mode > 0 ? "ON" : "OFF");
1033
1034         /* Update the last Wi-Fi power state */
1035         vconf_get_int(VCONF_WIFI_LAST_POWER_STATE, &wifi_last_power_state);
1036         if (wifi_last_power_state > VCONFKEY_WIFI_OFF) {
1037 #if defined TIZEN_TELEPHONY_ENABLE
1038                 int telephony_ready = 0;
1039                 vconf_get_bool(VCONFKEY_TELEPHONY_READY, &telephony_ready);
1040                 if (telephony_ready == 0) {
1041                         DBG("Telephony API is not initialized yet");
1042                         vconf_notify_key_changed(VCONFKEY_TELEPHONY_READY,
1043                                         __netconfig_telephony_ready_changed_cb, NULL);
1044                 } else {
1045                         if (netconfig_tapi_check_sim_state() == FALSE)
1046                                 DBG("SIM is not initialized yet");
1047                 }
1048 #endif
1049                 DBG("Turn Wi-Fi on automatically");
1050 #if defined TIZEN_WEARABLE
1051                 wifi_power_on_wearable(TRUE);
1052 #else
1053                 wifi_power_on();
1054 #endif
1055         }
1056
1057 #if defined TIZEN_WEARABLE
1058         _weconn_set_state_changed_cb(W_SERVICE_TYPE_BT, NULL);
1059         vconf_notify_key_changed(VCONF_WIFI_WEARABLE_WIFI_USE, __wearable_wifi_use_changed_cb, NULL);
1060
1061 #if defined TIZEN_TELEPHONY_ENABLE
1062         vconf_notify_key_changed(VCONFKEY_TELEPHONY_FLIGHT_MODE,
1063                         __netconfig_wifi_wearable_airplane_mode, NULL);
1064 #endif
1065 #else
1066         vconf_notify_key_changed(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE,
1067                         __netconfig_wifi_restrict_mode, NULL);
1068 #if defined TIZEN_TELEPHONY_ENABLE
1069         vconf_notify_key_changed(VCONFKEY_TELEPHONY_FLIGHT_MODE,
1070                         __netconfig_wifi_airplane_mode, NULL);
1071 #endif
1072 #endif
1073
1074         vconf_notify_key_changed(VCONFKEY_SETAPPL_PSMODE, __emergency_mode_changed_cb, NULL);
1075         vconf_notify_key_changed(VCONFKEY_PM_STATE, __pm_state_changed_cb, NULL);
1076 }
1077
1078 void wifi_power_deinitialize(void)
1079 {
1080 }
1081
1082 gboolean handle_load_driver(Wifi *wifi,
1083                 GDBusMethodInvocation *context, gboolean device_picker_test)
1084 {
1085         int err;
1086
1087         DBG("Wi-Fi power on requested");
1088
1089         g_return_val_if_fail(wifi != NULL, FALSE);
1090
1091         if (!netconfig_dpm_update_from_wifi()) {
1092                 DBG("DPM policy restricts Wi-Fi");
1093                 netconfig_error_permission_denied(context);
1094                 return TRUE;
1095         }
1096
1097 #if defined TIZEN_WEARABLE
1098         err = wifi_power_on_wearable(device_picker_test);
1099 #else
1100         err = wifi_power_on();
1101
1102         if (device_picker_test == TRUE)
1103                 netconfig_wifi_enable_device_picker_test();
1104 #endif
1105         if (err < 0) {
1106                 if (err == -EINPROGRESS)
1107                         netconfig_error_inprogress(context);
1108                 else if (err == -EALREADY)
1109                         netconfig_error_already_exists(context);
1110                 else if (err == -EPERM)
1111                         netconfig_error_permission_denied(context);
1112                 else
1113                         netconfig_error_wifi_driver_failed(context);
1114
1115                 return TRUE;
1116         }
1117
1118
1119         netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
1120         __netconfig_set_wifi_bssid();
1121
1122         wifi_complete_load_driver(wifi, context);
1123         return TRUE;
1124 }
1125
1126 gboolean handle_remove_driver(Wifi *wifi, GDBusMethodInvocation *context)
1127 {
1128         int err;
1129
1130         DBG("Wi-Fi power off requested");
1131
1132         g_return_val_if_fail(wifi != NULL, FALSE);
1133
1134         err = wifi_power_off();
1135         if (err < 0) {
1136                 if (err == -EINPROGRESS)
1137                         netconfig_error_inprogress(context);
1138                 else if (err == -EALREADY)
1139                         netconfig_error_already_exists(context);
1140                 else if (err == -EPERM)
1141                         netconfig_error_permission_denied(context);
1142                 else
1143                         netconfig_error_wifi_driver_failed(context);
1144                 return TRUE;
1145         }
1146
1147         netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
1148
1149         wifi_complete_remove_driver(wifi, context);
1150         return TRUE;
1151 }
1152
1153 gboolean handle_load_p2p_driver(Wifi *wifi, GDBusMethodInvocation *context)
1154 {
1155         ERR("Deprecated");
1156
1157         wifi_complete_load_p2p_driver(wifi, context);
1158         return TRUE;
1159 }
1160
1161 gboolean handle_remove_p2p_driver(Wifi *wifi, GDBusMethodInvocation *context)
1162 {
1163         ERR("Deprecated");
1164
1165         wifi_complete_remove_p2p_driver(wifi, context);
1166         return TRUE;
1167 }
1168
1169 #if defined TIZEN_TV
1170 static int __netconfig_get_random_mac(unsigned char *mac_buf, int mac_len)
1171 {
1172         DBG("Generate Random Mac address of ethernet");
1173         FILE *fp;
1174         int rc;
1175
1176         fp = fopen(OS_RANDOM_FILE, "rb");
1177
1178         if (fp == NULL) {
1179                 ERR("Could not open /dev/urandom");
1180                 return -1;
1181         }
1182         rc = fread(mac_buf, 1, mac_len, fp);
1183         if (fp)
1184                 fclose(fp);
1185
1186         return rc != mac_len ? -1 : 0;
1187 }
1188
1189 void __netconfig_set_ether_macaddr()
1190 {
1191
1192         DBG("Set wired Mac address ");
1193         char *mac_addr = NULL;
1194         int rv = -1;
1195
1196         mac_addr = vconf_get_str(VCONF_ETH_MAC_ADDRESS);
1197         if (mac_addr == NULL) {
1198                 DBG("vconf_get_str Failed\n");
1199                 return;
1200         }
1201         /* Checking Invalid MAC Address */
1202         if ((strlen(mac_addr) == 0)) {
1203                 ERR("Failed to get valid MAC Address from vconf");
1204                 /*Generate the Random Mac address*/
1205                 unsigned char rand_mac_add[ETH_MAC_ADDR_SIZE+1];
1206
1207                 if (__netconfig_get_random_mac(rand_mac_add, ETH_MAC_ADDR_SIZE == -1)) {
1208
1209                         ERR("Could not generate the Random Mac address");
1210                         g_free(mac_addr);
1211                         return;
1212                 }
1213
1214                 rand_mac_add[0] &= 0xFE; /*Clear multicase bit*/
1215                 rand_mac_add[0] |= 0x02; /*set local assignment bit*/
1216
1217                 /*Set the Mac address in Vconf*/
1218                 snprintf(mac_addr, WLAN_MAC_ADDR_MAX, "%x:%x:%x:%x:%x:%x",
1219                                 rand_mac_add[0], rand_mac_add[1],
1220                                 rand_mac_add[2], rand_mac_add[3],
1221                                 rand_mac_add[4], rand_mac_add[5]);
1222
1223                 netconfig_set_vconf_str(VCONF_ETH_MAC_ADDRESS, mac_addr);
1224         }
1225
1226         DBG("MAC Address of eth0 [%s]", mac_addr);
1227         const char *path = NET_EXEC_PATH;
1228         char *const args[] = { "/sbin/ifconfig", "eth0", "hw",
1229                 "ether", mac_addr, "up", NULL};
1230         char *const envs[] = { NULL };
1231         rv = netconfig_execute_file(path, args, envs);
1232
1233         if (rv < 0)
1234                 ERR("Unable to execute system command");
1235         g_free(mac_addr);
1236
1237 }
1238 #endif