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_ADDR_MAX           20
  62 #define VCONF_WIFI_BSSID_ADDRESS        "db/wifi/bssid_address"
  63
  64 #if defined TIZEN_TV
  65 #define ETH_MAC_ADDR_SIZE 6
  66 #define VCONF_ETH_MAC_ADDRESS  "db/dnet/mac_address"
  67 #define NET_EXEC_PATH "/sbin/ifconfig"
  68 #define OS_RANDOM_FILE "/dev/urandom"
  69 #endif
  70
  71 static gboolean connman_wifi_technology_state = FALSE;
  72 static gboolean wifi_firmware_recovery_mode = FALSE;
  73 static int airplane_mode = 0;
  74
  75 #if defined TIZEN_WEARABLE
  76 static int psmode_wifi_use = 1;
  77 #endif
  78
  79 static gboolean __is_wifi_restricted(void)
  80 {
  81 #if defined TIZEN_WEARABLE
  82         return FALSE;
  83 #endif
  84         int restricted_mode = 0;
  85
  86         netconfig_vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE, &restricted_mode);
  87         if (restricted_mode != 0) {
  88                 DBG("network restricted mode[%d]", restricted_mode);
  89                 return TRUE;
  90         }
  91
  92         return FALSE;
  93 }
  94
  95 static void __technology_reply(GObject *source_object, GAsyncResult *res, gpointer user_data)
  96 {
  97         GVariant *reply;
  98         GDBusConnection *conn = NULL;
  99         GError *error = NULL;
 100
 101         conn = G_DBUS_CONNECTION(source_object);
 102         reply = g_dbus_connection_call_finish(conn, res, &error);
 103
 104         if (reply == NULL) {
 105                 if (error != NULL) {
 106                         if (g_strstr_len(error->message, strlen(error->message),
 107                                         CONNMAN_ERROR_INTERFACE ".AlreadyEnabled") != NULL) {
 108                                 wifi_state_update_power_state(TRUE);
 109                         } else if (g_strstr_len(error->message, strlen(error->message),
 110                                         CONNMAN_ERROR_INTERFACE ".AlreadyDisabled") != NULL) {
 111                                 wifi_state_update_power_state(FALSE);
 112                         } else {
 113                                 ERR("Fail to request status [%d: %s]", error->code, error->message);
 114                                 wifi_state_update_power_state(FALSE);
 115                         }
 116                         g_error_free(error);
 117                 } else {
 118                         ERR("Fail to request status");
 119                         wifi_state_update_power_state(FALSE);
 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 #if defined TIZEN_WEARABLE
 369 int netconfig_wifi_on_wearable(gboolean device_picker_test)
 370 {
 371         int err = 0;
 372         int wifi_use;
 373         int ps_mode;
 374
 375         if (netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use) < 0) {
 376                 ERR("Fail to get VCONF_WIFI_WEARABLE_WIFI_USE");
 377                 return -EIO;
 378         }
 379
 380         if (wifi_use > 0) {
 381                 if (netconfig_vconf_get_int(VCONFKEY_SETAPPL_PSMODE, &ps_mode) < 0) {
 382                         ERR("Fail to get VCONFKEY_SETAPPL_PSMODE");
 383                         return -EIO;
 384                 }
 385
 386                 if (ps_mode > SETTING_PSMODE_NORMAL) {
 387                         WARN("ps mode is on(%d), Not turn on Wi-Fi", ps_mode);
 388                         return -EPERM;
 389                 }
 390         } else {
 391                 WARN("Not permitted Wi-Fi on");
 392                 return -EPERM;
 393         }
 394
 395         err = wifi_power_driver_and_supplicant(TRUE);
 396         if (err < 0 && err != -EALREADY)
 397                 return err;
 398
 399         err = _set_connman_technology_power(TRUE);
 400
 401         if (device_picker_test == TRUE)
 402                 netconfig_wifi_enable_device_picker_test();
 403
 404         return err;
 405 }
 406
 407 static void __wearable_wifi_use_changed_cb(keynode_t* node, void* user_data)
 408 {
 409         int wifi_state;
 410         int wifi_use = 1;
 411
 412         if (netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state) < 0) {
 413                 ERR("Fail to get VCONFKEY_WIFI_STATE");
 414                 return;
 415         }
 416
 417         if (node != NULL)
 418                 wifi_use = vconf_keynode_get_int(node);
 419         else
 420                 netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use);
 421
 422         if (wifi_use > 0) {
 423                 DBG("wifi use on");
 424                 if (wifi_state > VCONFKEY_WIFI_OFF) {
 425                         WARN("Wi-Fi is already turned on");
 426                         return;
 427                 }
 428                 wifi_power_on_wearable(TRUE);
 429         } else {
 430                 ERR("## wifi use [OFF]");
 431                 if (wifi_state == VCONFKEY_WIFI_OFF) {
 432                         WARN("Wi-Fi is already turned off");
 433                         return;
 434                 }
 435
 436                 wifi_power_off();
 437         }
 438 }
 439 #else
 440 static void __netconfig_wifi_restrict_mode(keynode_t *node, void *user_data)
 441 {
 442         int wifi_state = 0, restricted = 0;
 443         int wifi_off_by_restricted = 0;
 444
 445         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, &wifi_off_by_restricted);
 446
 447         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 448
 449         if (node != NULL)
 450                 restricted = vconf_keynode_get_bool(node);
 451         else
 452                 netconfig_vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE, &restricted);
 453
 454         DBG("network restricted mode %s", restricted > 0 ? "ON" : "OFF");
 455         DBG("Wi-Fi state %d, Wi-Fi was off by restricted mode %s", wifi_state,
 456                         wifi_off_by_restricted ? "Yes" : "No");
 457
 458         if (restricted > 0) {
 459                 /* network restricted on */
 460                 if (wifi_state == VCONFKEY_WIFI_OFF)
 461                         return;
 462
 463                 wifi_power_off();
 464
 465                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, 1);
 466         } else {
 467                 /* network restricted off */
 468                 if (!wifi_off_by_restricted)
 469                         return;
 470
 471                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, 0);
 472
 473                 if (wifi_state > VCONFKEY_WIFI_OFF)
 474                         return;
 475
 476                 wifi_power_on();
 477         }
 478 }
 479 #endif
 480
 481 static void __netconfig_wifi_airplane_mode(keynode_t *node, void *user_data)
 482 {
 483         int wifi_state = 0, airplane_state = 0;
 484         int wifi_off_by_airplane = 0;
 485
 486         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, &wifi_off_by_airplane);
 487
 488 #if defined TIZEN_WEARABLE
 489         netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_state)
 490 #else
 491         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 492 #endif
 493
 494         if (node != NULL)
 495                 airplane_state = vconf_keynode_get_bool(node);
 496         else
 497                 netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_FLIGHT_MODE, &airplane_state);
 498
 499         DBG("airplane mode %s (prev:%d)", airplane_state > 0 ? "ON" : "OFF", airplane_mode);
 500         DBG("Wi-Fi state(or use) %d, Wi-Fi was off by flight mode %s", wifi_state,
 501                         wifi_off_by_airplane ? "Yes" : "No");
 502
 503         if (airplane_mode == airplane_state)
 504                 return ;
 505
 506         airplane_mode = airplane_state;
 507
 508         if (airplane_state > 0) {
 509                 /* airplane mode on */
 510                 if (wifi_state == VCONFKEY_WIFI_OFF)
 511                         return;
 512
 513                 wifi_power_off();
 514
 515                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 1);
 516 #if defined TIZEN_WEARABLE
 517                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 0);
 518 #endif
 519         } else {
 520                 /* airplane mode off */
 521                 if (!wifi_off_by_airplane)
 522                         return;
 523
 524                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
 525 #if defined TIZEN_WEARABLE
 526                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 1);
 527 #else
 528                 if (wifi_state > VCONFKEY_WIFI_OFF)
 529                         return;
 530
 531                 wifi_power_on();
 532 #endif
 533         }
 534 }
 535
 536 static void __emergency_mode_changed_cb(keynode_t *node, void *user_data)
 537 {
 538         int wifi_state = 0, emergency = 0;
 539         int wifi_off_by_emergency = 0;
 540 #if !defined TIZEN_WEARABLE
 541         int emergency_by_fmm = 0;
 542 #endif
 543 #if defined TIZEN_WEARABLE
 544         int wifi_use = 1;
 545 #endif
 546
 547         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, &wifi_off_by_emergency);
 548         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 549
 550 #if !defined TIZEN_WEARABLE
 551         netconfig_vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_PERMIT_WITH_LCD_OFF_LIMIT, &emergency_by_fmm);
 552         DBG("emergency mode by Find My Mobile (%d)", emergency_by_fmm);
 553         if (emergency_by_fmm == 1)
 554                 return;
 555 #endif
 556
 557         if (node != NULL)
 558                 emergency = vconf_keynode_get_int(node);
 559         else
 560                 netconfig_vconf_get_int(VCONFKEY_SETAPPL_PSMODE, &emergency);
 561
 562         DBG("emergency mode %s", emergency > SETTING_PSMODE_POWERFUL ? "ON" : "OFF");
 563         DBG("Wi-Fi state %d, Wi-Fi was off by emergency mode %s", wifi_state, wifi_off_by_emergency ? "Yes" : "No");
 564
 565 #if defined TIZEN_WEARABLE
 566         if (emergency == SETTING_PSMODE_WEARABLE) {
 567                 /* basic power saving mode on */
 568         } else if (emergency == SETTING_PSMODE_WEARABLE_ENHANCED) {
 569                 /* enhanced power saving mode on */
 570                 netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use);
 571                 psmode_wifi_use = wifi_use;
 572                 if (wifi_use != 0)
 573                         netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 0);
 574
 575                 if (wifi_state == VCONFKEY_WIFI_OFF)
 576                         return;
 577
 578                 wifi_power_off();
 579                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 1);
 580         } else {
 581                 /* power saving mode off */
 582                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, psmode_wifi_use);
 583                 if (!wifi_off_by_emergency)
 584                         return;
 585
 586                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 0);
 587                 if (wifi_state > VCONFKEY_WIFI_OFF)
 588                         return;
 589
 590                 wifi_power_on_wearable(TRUE);
 591         }
 592 #else
 593         if (emergency > SETTING_PSMODE_POWERFUL) {
 594                 /* emergency mode on */
 595                 if (wifi_state == VCONFKEY_WIFI_OFF)
 596                         return;
 597
 598                 wifi_power_off();
 599
 600                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 1);
 601         } else {
 602                 /* emergency mode off */
 603                 if (!wifi_off_by_emergency)
 604                         return;
 605
 606                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 0);
 607
 608                 if (wifi_state > VCONFKEY_WIFI_OFF)
 609                         return;
 610
 611                 wifi_power_on();
 612         }
 613 #endif
 614
 615 }
 616
 617 static void __pm_state_changed_cb(keynode_t* node, void* user_data)
 618 {
 619         int new_state = -1;
 620         int wifi_state = 0;
 621         static int prev_state = VCONFKEY_PM_STATE_NORMAL;
 622
 623         if (netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state) < 0) {
 624                 ERR("Fail to get VCONFKEY_WIFI_STATE");
 625                 return;
 626         }
 627
 628         /* PM state
 629          *      VCONFKEY_PM_STATE_NORMAL = 1,
 630          *      VCONFKEY_PM_STATE_LCDDIM,
 631          *      VCONFKEY_PM_STATE_LCDOFF,
 632          *      VCONFKEY_PM_STATE_SLEEP
 633          */
 634         if (node != NULL)
 635                 new_state = vconf_keynode_get_int(node);
 636         else
 637                 netconfig_vconf_get_int(VCONFKEY_PM_STATE, &new_state);
 638
 639         DBG("wifi state: %d (0 off / 1 on / 2 connected)", wifi_state);
 640         DBG("Old PM state: %d, current: %d", prev_state, new_state);
 641
 642         if ((new_state == VCONFKEY_PM_STATE_NORMAL) && (prev_state >= VCONFKEY_PM_STATE_LCDOFF)) {
 643                 netconfig_wifi_bgscan_stop();
 644                 netconfig_wifi_bgscan_start(TRUE);
 645         }
 646
 647         prev_state = new_state;
 648 }
 649
 650 #if defined TIZEN_TELEPHONY_ENABLE
 651 static void _tapi_noti_sim_status_cb(TapiHandle *handle, const char *noti_id,
 652                                                                                 void *data, void *user_data)
 653 {
 654         TelSimCardStatus_t *status = data;
 655
 656         if (*status == TAPI_SIM_STATUS_SIM_INIT_COMPLETED) {
 657                 DBG("Turn Wi-Fi on automatically");
 658 #if defined TIZEN_WEARABLE
 659                 wifi_power_on_wearable(TRUE);
 660 #else
 661                 wifi_power_on();
 662 #endif
 663                 netconfig_tel_deinit();
 664         }
 665 }
 666
 667 static gboolean netconfig_tapi_check_sim_state(void)
 668 {
 669         int ret, card_changed;
 670         TelSimCardStatus_t status = TAPI_SIM_STATUS_UNKNOWN;
 671         TapiHandle *tapi_handle = NULL;
 672
 673         tapi_handle = (TapiHandle *)netconfig_tel_init();
 674         if (tapi_handle == NULL) {
 675                 ERR("Failed to tapi init");
 676                 return FALSE;
 677         }
 678
 679         ret = tel_get_sim_init_info(tapi_handle, &status, &card_changed);
 680         if (ret != TAPI_API_SUCCESS) {
 681                 ERR("tel_get_sim_init_info() Failed : [%d]", ret);
 682                 netconfig_tel_deinit();
 683                 return FALSE;
 684         }
 685
 686         switch (status) {
 687         case TAPI_SIM_STATUS_UNKNOWN:
 688         case TAPI_SIM_STATUS_CARD_ERROR:
 689         case TAPI_SIM_STATUS_CARD_NOT_PRESENT:
 690         case TAPI_SIM_STATUS_CARD_BLOCKED:
 691         case TAPI_SIM_STATUS_SIM_INIT_COMPLETED:
 692                 break;
 693         case TAPI_SIM_STATUS_SIM_PIN_REQUIRED:
 694         case TAPI_SIM_STATUS_SIM_INITIALIZING:
 695         case TAPI_SIM_STATUS_SIM_PUK_REQUIRED:
 696         case TAPI_SIM_STATUS_SIM_LOCK_REQUIRED:
 697         case TAPI_SIM_STATUS_SIM_NCK_REQUIRED:
 698         case TAPI_SIM_STATUS_SIM_NSCK_REQUIRED:
 699         case TAPI_SIM_STATUS_SIM_SPCK_REQUIRED:
 700         case TAPI_SIM_STATUS_SIM_CCK_REQUIRED:
 701                 tel_register_noti_event(tapi_handle, TAPI_NOTI_SIM_STATUS,
 702                                 _tapi_noti_sim_status_cb, NULL);
 703                 return FALSE;
 704         default:
 705                 ERR("not defined status(%d)", status);
 706                 break;
 707         }
 708
 709         netconfig_tel_deinit();
 710
 711         return TRUE;
 712 }
 713
 714 static void __netconfig_telephony_ready_changed_cb(keynode_t * node, void *data)
 715 {
 716         int telephony_ready = 0;
 717
 718         if (node != NULL)
 719                 telephony_ready = vconf_keynode_get_bool(node);
 720         else
 721                 netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_READY, &telephony_ready);
 722
 723         if (telephony_ready != 0) {
 724                 if (netconfig_tapi_check_sim_state() == FALSE) {
 725                         DBG("Sim is not initialized yet.");
 726
 727                         goto done;
 728                 }
 729         } else
 730                 return;
 731
 732         DBG("Turn Wi-Fi on automatically");
 733
 734 #if defined TIZEN_WEARABLE
 735         wifi_power_on_wearable(TRUE);
 736 #else
 737         wifi_power_on();
 738 #endif
 739
 740 done:
 741         vconf_ignore_key_changed(VCONFKEY_TELEPHONY_READY, __netconfig_telephony_ready_changed_cb);
 742 }
 743 #endif
 744
 745 int wifi_power_driver_and_supplicant(gboolean enable)
 746 {
 747         /* There are 3 thumb rules for Wi-Fi power management
 748          *   1. Do not make exposed API to control wpa_supplicant and driver directly.
 749          *      It probably breaks ConnMan technology operation.
 750          *
 751          *   2. Do not remove driver and wpa_supplicant if ConnMan already enabled.
 752          *      It breaks ConnMan technology operation.
 753          *
 754          *   3. Final the best rule: make it as simple as possible.
 755          *      Simple code enables easy maintenance and reduces logical errors.
 756          */
 757         if (enable == TRUE) {
 758                 return _load_driver_and_supplicant();
 759         } else {
 760                 if (connman_wifi_technology_state == TRUE)
 761                         return -ENOSYS;
 762
 763                 return _remove_driver_and_supplicant();
 764         }
 765 }
 766
 767 void wifi_power_disable_technology_state_by_only_connman_signal(void)
 768 {
 769         /* Important: it's only done by ConnMan technology signal update */
 770         connman_wifi_technology_state = FALSE;
 771 }
 772
 773 void wifi_power_recover_firmware(void)
 774 {
 775         wifi_firmware_recovery_mode = TRUE;
 776
 777         netconfig_wifi_bgscan_stop();
 778
 779         wifi_power_off();
 780 }
 781
 782 int wifi_power_on(void)
 783 {
 784         int err = 0;
 785         wifi_tech_state_e tech_state;
 786
 787         tech_state = wifi_state_get_technology_state();
 788         if (tech_state >= NETCONFIG_WIFI_TECH_POWERED)
 789                 return -EALREADY;
 790
 791         if (__is_wifi_restricted() == TRUE)
 792                 return -EPERM;
 793
 794         if (netconfig_is_wifi_tethering_on() == TRUE) {
 795                 /* TODO: Wi-Fi tethering turns off here */
 796                 /* return TRUE; */
 797                 ERR("Failed to turn tethering off");
 798                 return -EBUSY;
 799         }
 800
 801 #if defined TIZEN_P2P_ENABLE && !defined WLAN_CONCURRENT_MODE
 802         if (netconfig_is_wifi_direct_on() == TRUE) {
 803                 if (__netconfig_wifi_direct_power_off() == TRUE)
 804                         return -EINPROGRESS;
 805                 else {
 806                         ERR("Failed to turn Wi-Fi direct off");
 807                         return -EBUSY;
 808                 }
 809         }
 810 #endif
 811
 812         err = wifi_power_driver_and_supplicant(TRUE);
 813         if (err < 0 && err != -EALREADY)
 814                 return err;
 815
 816         err = _set_connman_technology_power(TRUE);
 817
 818         return err;
 819 }
 820
 821 int wifi_power_off(void)
 822 {
 823         int err;
 824
 825         err = _set_connman_technology_power(FALSE);
 826         if (err == -EALREADY)
 827                 wifi_state_update_power_state(FALSE);
 828
 829         return 0;
 830 }
 831
 832 #if defined TIZEN_WEARABLE
 833 int wifi_power_on_wearable(gboolean device_picker_test)
 834 {
 835         int err = 0;
 836         int wifi_use = 1;
 837         wifi_tech_state_e tech_state;
 838
 839         tech_state = wifi_state_get_technology_state();
 840         if (tech_state >= NETCONFIG_WIFI_TECH_POWERED)
 841                 return -EALREADY;
 842
 843         if (netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use) < 0) {
 844                 ERR("Fail to get VCONF_WIFI_WEARABLE_WIFI_USE");
 845                 return -EIO;
 846         }
 847
 848         if (wifi_use == 0) {
 849                 WARN("VCONF_WIFI_WEARABLE_WIFI_USE is OFF");
 850                 return -EPERM;
 851         }
 852
 853         err = wifi_power_driver_and_supplicant(TRUE);
 854         if (err < 0 && err != -EALREADY)
 855                 return err;
 856
 857         err = _set_connman_technology_power(TRUE);
 858
 859         if (device_picker_test == TRUE)
 860                 netconfig_wifi_enable_device_picker_test();
 861
 862         return err;
 863 }
 864 #endif
 865
 866 void wifi_power_initialize(void)
 867 {
 868         int wifi_last_power_state = 0;
 869
 870         /* Initialize Airplane mode */
 871         netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_FLIGHT_MODE, &airplane_mode);
 872         DBG("Airplane[%s]", airplane_mode > 0 ? "ON" : "OFF");
 873
 874         /* Update the last Wi-Fi power state */
 875         netconfig_vconf_get_int(VCONF_WIFI_LAST_POWER_STATE, &wifi_last_power_state);
 876         if (wifi_last_power_state > VCONFKEY_WIFI_OFF) {
 877 #if defined TIZEN_TELEPHONY_ENABLE
 878                 int telephony_ready = 0;
 879                 netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_READY, &telephony_ready);
 880                 if (telephony_ready == 0) {
 881                         DBG("Telephony API is not initialized yet");
 882                         vconf_notify_key_changed(VCONFKEY_TELEPHONY_READY,
 883                                         __netconfig_telephony_ready_changed_cb, NULL);
 884                 } else {
 885                         if (netconfig_tapi_check_sim_state() == FALSE)
 886                                 DBG("SIM is not initialized yet");
 887                 }
 888 #endif
 889                 DBG("Turn Wi-Fi on automatically");
 890 #if defined TIZEN_WEARABLE
 891                 wifi_power_on_wearable(TRUE);
 892 #else
 893                 wifi_power_on();
 894 #endif
 895         }
 896
 897 #if defined TIZEN_WEARABLE
 898         vconf_notify_key_changed(VCONF_WIFI_WEARABLE_WIFI_USE, __wearable_wifi_use_changed_cb, NULL);
 899
 900         vconf_notify_key_changed(VCONFKEY_TELEPHONY_FLIGHT_MODE,
 901                         __netconfig_wifi_airplane_mode, NULL);
 902 #else
 903         vconf_notify_key_changed(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE,
 904                         __netconfig_wifi_restrict_mode, NULL);
 905         vconf_notify_key_changed(VCONFKEY_TELEPHONY_FLIGHT_MODE,
 906                         __netconfig_wifi_airplane_mode, NULL);
 907 #endif
 908
 909         vconf_notify_key_changed(VCONFKEY_SETAPPL_PSMODE, __emergency_mode_changed_cb, NULL);
 910         vconf_notify_key_changed(VCONFKEY_PM_STATE, __pm_state_changed_cb, NULL);
 911 }
 912
 913 void wifi_power_deinitialize(void)
 914 {
 915 }
 916
 917 gboolean handle_load_driver(Wifi *wifi,
 918                 GDBusMethodInvocation *context, gboolean device_picker_test)
 919 {
 920         int err;
 921
 922         DBG("Wi-Fi power on requested");
 923
 924         g_return_val_if_fail(wifi != NULL, FALSE);
 925
 926         if (!netconfig_dpm_update_from_wifi()) {
 927                 DBG("DPM policy restricts Wi-Fi");
 928                 netconfig_error_permission_denied(context);
 929                 return TRUE;
 930         }
 931
 932 #if defined TIZEN_WLAN_BOARD_SPRD
 933         wifi_firmware_download();
 934 #endif
 935
 936 #if defined TIZEN_WEARABLE
 937         err = wifi_power_on_wearable(device_picker_test);
 938 #else
 939         err = wifi_power_on();
 940
 941         if (device_picker_test == TRUE)
 942                 netconfig_wifi_enable_device_picker_test();
 943 #endif
 944         if (err < 0) {
 945                 if (err == -EINPROGRESS)
 946                         netconfig_error_inprogress(context);
 947                 else if (err == -EALREADY)
 948                         netconfig_error_already_exists(context);
 949                 else if (err == -EPERM)
 950                         netconfig_error_permission_denied(context);
 951                 else
 952                         netconfig_error_wifi_driver_failed(context);
 953
 954                 return TRUE;
 955         }
 956
 957
 958         netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
 959         __netconfig_set_wifi_bssid();
 960
 961         wifi_complete_load_driver(wifi, context);
 962         return TRUE;
 963 }
 964
 965 gboolean handle_remove_driver(Wifi *wifi, GDBusMethodInvocation *context)
 966 {
 967         int err;
 968
 969         DBG("Wi-Fi power off requested");
 970
 971         g_return_val_if_fail(wifi != NULL, FALSE);
 972
 973         err = wifi_power_off();
 974         if (err < 0) {
 975                 if (err == -EINPROGRESS)
 976                         netconfig_error_inprogress(context);
 977                 else if (err == -EALREADY)
 978                         netconfig_error_already_exists(context);
 979                 else if (err == -EPERM)
 980                         netconfig_error_permission_denied(context);
 981                 else
 982                         netconfig_error_wifi_driver_failed(context);
 983                 return TRUE;
 984         }
 985
 986         netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
 987
 988         wifi_complete_remove_driver(wifi, context);
 989         return TRUE;
 990 }
 991
 992 gboolean handle_load_p2p_driver(Wifi *wifi, GDBusMethodInvocation *context)
 993 {
 994         ERR("Deprecated");
 995
 996         wifi_complete_load_p2p_driver(wifi, context);
 997         return TRUE;
 998 }
 999
1000 gboolean handle_remove_p2p_driver(Wifi *wifi, GDBusMethodInvocation *context)
1001 {
1002         ERR("Deprecated");
1003
1004         wifi_complete_remove_p2p_driver(wifi, context);
1005         return TRUE;
1006 }
1007
1008 #if defined TIZEN_TV
1009 static int __netconfig_get_random_mac(unsigned char *mac_buf, int mac_len)
1010 {
1011         DBG("Generate Random Mac address of ethernet");
1012         FILE *fp;
1013         int rc;
1014
1015         fp = fopen(OS_RANDOM_FILE, "rb");
1016
1017         if (fp == NULL) {
1018                 ERR("Could not open /dev/urandom");
1019                 return -1;
1020         }
1021         rc = fread(mac_buf, 1, mac_len, fp);
1022         if (fp)
1023                 fclose(fp);
1024
1025         return rc != mac_len ? -1 : 0;
1026 }
1027
1028 void __netconfig_set_ether_macaddr()
1029 {
1030         DBG("Set wired Mac address ");
1031         char *mac_addr = NULL;
1032         char rand_addr[WLAN_MAC_ADDR_MAX];
1033         int rv = -1;
1034
1035         mac_addr = vconf_get_str(VCONF_ETH_MAC_ADDRESS);
1036         if (mac_addr == NULL) {
1037                 DBG("vconf_get_str Failed\n");
1038                 return;
1039         }
1040         /* Checking Invalid MAC Address */
1041         if ((strlen(mac_addr) == 0)) {
1042                 ERR("Failed to get valid MAC Address from vconf");
1043                 /*Generate the Random Mac address*/
1044                 unsigned char rand_mac_add[ETH_MAC_ADDR_SIZE+1];
1045
1046                 if (__netconfig_get_random_mac(rand_mac_add, ETH_MAC_ADDR_SIZE) == -1) {
1047
1048                         ERR("Could not generate the Random Mac address");
1049                         g_free(mac_addr);
1050                         return;
1051                 }
1052
1053                 rand_mac_add[0] &= 0xFE; /*Clear multicase bit*/
1054                 rand_mac_add[0] |= 0x02; /*set local assignment bit*/
1055
1056                 /*Set the Mac address in Vconf*/
1057                 snprintf(rand_addr, WLAN_MAC_ADDR_MAX, "%x:%x:%x:%x:%x:%x",
1058                                 rand_mac_add[0], rand_mac_add[1],
1059                                 rand_mac_add[2], rand_mac_add[3],
1060                                 rand_mac_add[4], rand_mac_add[5]);
1061
1062                 netconfig_set_vconf_str(VCONF_ETH_MAC_ADDRESS, rand_addr);
1063         } else { /* Valid MAC address */
1064                 strncpy(rand_addr, mac_addr, strlen(mac_addr));
1065                 rand_addr[strlen(mac_addr)] = '\0';
1066         }
1067
1068         DBG("MAC Address of eth0 [%s]", rand_addr);
1069         const char *path = NET_EXEC_PATH;
1070         char *const args[] = { "/sbin/ifconfig", "eth0", "hw",
1071                 "ether", rand_addr, "up", NULL};
1072         char *const envs[] = { NULL };
1073         rv = netconfig_execute_file(path, args, envs);
1074
1075         if (rv < 0)
1076                 ERR("Unable to execute system command");
1077         g_free(mac_addr);
1078
1079 }
1080 #endif