src/wifi-power.c

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