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