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 void netconfig_wifi_disable_technology_state_by_only_connman_signal(void)
 344 {
 345         /* Important: it's only done by ConnMan technology signal update */
 346         connman_wifi_technology_state = FALSE;
 347 }
 348
 349 #if defined TIZEN_WEARABLE
 350 int netconfig_wifi_on_wearable(gboolean device_picker_test)
 351 {
 352         int err = 0;
 353         int wifi_use;
 354         int ps_mode;
 355
 356         if (netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use) < 0) {
 357                 ERR("Fail to get VCONF_WIFI_WEARABLE_WIFI_USE");
 358                 return -EIO;
 359         }
 360
 361         if (wifi_use > 0) {
 362                 if (netconfig_vconf_get_int(VCONFKEY_SETAPPL_PSMODE, &ps_mode) < 0) {
 363                         ERR("Fail to get VCONFKEY_SETAPPL_PSMODE");
 364                         return -EIO;
 365                 }
 366
 367                 if (ps_mode > SETTING_PSMODE_NORMAL) {
 368                         WARN("ps mode is on(%d), Not turn on Wi-Fi", ps_mode);
 369                         return -EPERM;
 370                 }
 371         } else {
 372                 WARN("Not permitted Wi-Fi on");
 373                 return -EPERM;
 374         }
 375
 376         err = wifi_power_driver_and_supplicant(TRUE);
 377         if (err < 0 && err != -EALREADY)
 378                 return err;
 379
 380         err = _set_connman_technology_power(TRUE);
 381
 382         if (device_picker_test == TRUE)
 383                 netconfig_wifi_enable_device_picker_test();
 384
 385         return err;
 386 }
 387
 388 static void __wearable_wifi_use_changed_cb(keynode_t* node, void* user_data)
 389 {
 390         int wifi_state;
 391         int wifi_use = 1;
 392
 393         if (netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state) < 0) {
 394                 ERR("Fail to get VCONFKEY_WIFI_STATE");
 395                 return;
 396         }
 397
 398         if (node != NULL)
 399                 wifi_use = vconf_keynode_get_int(node);
 400         else
 401                 netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use);
 402
 403         if (wifi_use > 0) {
 404                 DBG("wifi use on");
 405                 if (wifi_state > VCONFKEY_WIFI_OFF) {
 406                         WARN("Wi-Fi is already turned on");
 407                         return;
 408                 }
 409                 wifi_power_on_wearable(TRUE);
 410         } else {
 411                 ERR("## wifi use [OFF]");
 412                 if (wifi_state == VCONFKEY_WIFI_OFF) {
 413                         WARN("Wi-Fi is already turned off");
 414                         return;
 415                 }
 416
 417                 wifi_power_off();
 418         }
 419 }
 420 #else
 421 static void __netconfig_wifi_restrict_mode(keynode_t *node, void *user_data)
 422 {
 423         int wifi_state = 0, restricted = 0;
 424         int wifi_off_by_restricted = 0;
 425
 426         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, &wifi_off_by_restricted);
 427
 428         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 429
 430         if (node != NULL)
 431                 restricted = vconf_keynode_get_bool(node);
 432         else
 433                 netconfig_vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE, &restricted);
 434
 435         DBG("network restricted mode %s", restricted > 0 ? "ON" : "OFF");
 436         DBG("Wi-Fi state %d, Wi-Fi was off by restricted mode %s", wifi_state,
 437                         wifi_off_by_restricted ? "Yes" : "No");
 438
 439         if (restricted > 0) {
 440                 /* network restricted on */
 441                 if (wifi_state == VCONFKEY_WIFI_OFF)
 442                         return;
 443
 444                 wifi_power_off();
 445
 446                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, 1);
 447         } else {
 448                 /* network restricted off */
 449                 if (!wifi_off_by_restricted)
 450                         return;
 451
 452                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_RESTRICTED, 0);
 453
 454                 if (wifi_state > VCONFKEY_WIFI_OFF)
 455                         return;
 456
 457                 wifi_power_on();
 458         }
 459 }
 460 #endif
 461
 462 static void __netconfig_wifi_airplane_mode(keynode_t *node, void *user_data)
 463 {
 464         int wifi_state = 0, airplane_state = 0;
 465         int wifi_off_by_airplane = 0;
 466
 467         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, &wifi_off_by_airplane);
 468
 469 #if defined TIZEN_WEARABLE
 470         netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_state)
 471 #else
 472         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 473 #endif
 474
 475         if (node != NULL)
 476                 airplane_state = vconf_keynode_get_bool(node);
 477         else
 478                 netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_FLIGHT_MODE, &airplane_state);
 479
 480         DBG("airplane mode %s (prev:%d)", airplane_state > 0 ? "ON" : "OFF", airplane_mode);
 481         DBG("Wi-Fi state(or use) %d, Wi-Fi was off by flight mode %s", wifi_state,
 482                         wifi_off_by_airplane ? "Yes" : "No");
 483
 484         if (airplane_mode == airplane_state)
 485                 return ;
 486
 487         airplane_mode = airplane_state;
 488
 489         if (airplane_state > 0) {
 490                 /* airplane mode on */
 491                 if (wifi_state == VCONFKEY_WIFI_OFF)
 492                         return;
 493
 494                 wifi_power_off();
 495
 496                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 1);
 497 #if defined TIZEN_WEARABLE
 498                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 0);
 499 #endif
 500         } else {
 501                 /* airplane mode off */
 502                 if (!wifi_off_by_airplane)
 503                         return;
 504
 505                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
 506 #if defined TIZEN_WEARABLE
 507                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 1);
 508 #else
 509                 if (wifi_state > VCONFKEY_WIFI_OFF)
 510                         return;
 511
 512                 wifi_power_on();
 513 #endif
 514         }
 515 }
 516
 517 static void __emergency_mode_changed_cb(keynode_t *node, void *user_data)
 518 {
 519         int wifi_state = 0, emergency = 0;
 520         int wifi_off_by_emergency = 0;
 521 #if !defined TIZEN_WEARABLE
 522         int emergency_by_fmm = 0;
 523 #endif
 524 #if defined TIZEN_WEARABLE
 525         int wifi_use = 1;
 526 #endif
 527
 528         netconfig_vconf_get_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, &wifi_off_by_emergency);
 529         netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state);
 530
 531 #if !defined TIZEN_WEARABLE
 532         netconfig_vconf_get_bool(VCONFKEY_SETAPPL_NETWORK_PERMIT_WITH_LCD_OFF_LIMIT, &emergency_by_fmm);
 533         DBG("emergency mode by Find My Mobile (%d)", emergency_by_fmm);
 534         if (emergency_by_fmm == 1)
 535                 return;
 536 #endif
 537
 538         if (node != NULL)
 539                 emergency = vconf_keynode_get_int(node);
 540         else
 541                 netconfig_vconf_get_int(VCONFKEY_SETAPPL_PSMODE, &emergency);
 542
 543         DBG("emergency mode %s", emergency > SETTING_PSMODE_POWERFUL ? "ON" : "OFF");
 544         DBG("Wi-Fi state %d, Wi-Fi was off by emergency mode %s", wifi_state, wifi_off_by_emergency ? "Yes" : "No");
 545
 546 #if defined TIZEN_WEARABLE
 547         if (emergency == SETTING_PSMODE_WEARABLE) {
 548                 /* basic power saving mode on */
 549         } else if (emergency == SETTING_PSMODE_WEARABLE_ENHANCED) {
 550                 /* enhanced power saving mode on */
 551                 netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use);
 552                 psmode_wifi_use = wifi_use;
 553                 if (wifi_use != 0)
 554                         netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, 0);
 555
 556                 if (wifi_state == VCONFKEY_WIFI_OFF)
 557                         return;
 558
 559                 wifi_power_off();
 560                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 1);
 561         } else {
 562                 /* power saving mode off */
 563                 netconfig_set_vconf_int(VCONF_WIFI_WEARABLE_WIFI_USE, psmode_wifi_use);
 564                 if (!wifi_off_by_emergency)
 565                         return;
 566
 567                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 0);
 568                 if (wifi_state > VCONFKEY_WIFI_OFF)
 569                         return;
 570
 571                 wifi_power_on_wearable(TRUE);
 572         }
 573 #else
 574         if (emergency > SETTING_PSMODE_POWERFUL) {
 575                 /* emergency mode on */
 576                 if (wifi_state == VCONFKEY_WIFI_OFF)
 577                         return;
 578
 579                 wifi_power_off();
 580
 581                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 1);
 582         } else {
 583                 /* emergency mode off */
 584                 if (!wifi_off_by_emergency)
 585                         return;
 586
 587                 netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_EMERGENCY, 0);
 588
 589                 if (wifi_state > VCONFKEY_WIFI_OFF)
 590                         return;
 591
 592                 wifi_power_on();
 593         }
 594 #endif
 595
 596 }
 597
 598 static void __pm_state_changed_cb(keynode_t* node, void* user_data)
 599 {
 600         int new_state = -1;
 601         int wifi_state = 0;
 602         static int prev_state = VCONFKEY_PM_STATE_NORMAL;
 603
 604         if (netconfig_vconf_get_int(VCONFKEY_WIFI_STATE, &wifi_state) < 0) {
 605                 ERR("Fail to get VCONFKEY_WIFI_STATE");
 606                 return;
 607         }
 608
 609         /* PM state
 610          *      VCONFKEY_PM_STATE_NORMAL = 1,
 611          *      VCONFKEY_PM_STATE_LCDDIM,
 612          *      VCONFKEY_PM_STATE_LCDOFF,
 613          *      VCONFKEY_PM_STATE_SLEEP
 614          */
 615         if (node != NULL)
 616                 new_state = vconf_keynode_get_int(node);
 617         else
 618                 netconfig_vconf_get_int(VCONFKEY_PM_STATE, &new_state);
 619
 620         DBG("wifi state: %d (0 off / 1 on / 2 connected)", wifi_state);
 621         DBG("Old PM state: %d, current: %d", prev_state, new_state);
 622
 623         if ((new_state == VCONFKEY_PM_STATE_NORMAL) && (prev_state >= VCONFKEY_PM_STATE_LCDOFF)) {
 624                 netconfig_wifi_bgscan_stop();
 625                 netconfig_wifi_bgscan_start(TRUE);
 626         }
 627
 628         prev_state = new_state;
 629 }
 630
 631 static void _tapi_noti_sim_status_cb(TapiHandle *handle, const char *noti_id,
 632                                                                                 void *data, void *user_data)
 633 {
 634         TelSimCardStatus_t *status = data;
 635
 636         if (*status == TAPI_SIM_STATUS_SIM_INIT_COMPLETED) {
 637                 DBG("Turn Wi-Fi on automatically");
 638 #if defined TIZEN_WEARABLE
 639                 wifi_power_on_wearable(TRUE);
 640 #else
 641                 wifi_power_on();
 642 #endif
 643                 netconfig_tel_deinit();
 644         }
 645 }
 646
 647 static gboolean netconfig_tapi_check_sim_state(void)
 648 {
 649         int ret, card_changed;
 650         TelSimCardStatus_t status = TAPI_SIM_STATUS_UNKNOWN;
 651         TapiHandle *tapi_handle = NULL;
 652
 653         tapi_handle = (TapiHandle *)netconfig_tel_init();
 654         if (tapi_handle == NULL) {
 655                 ERR("Failed to tapi init");
 656                 return FALSE;
 657         }
 658
 659         ret = tel_get_sim_init_info(tapi_handle, &status, &card_changed);
 660         if (ret != TAPI_API_SUCCESS) {
 661                 ERR("tel_get_sim_init_info() Failed : [%d]", ret);
 662                 netconfig_tel_deinit();
 663                 return FALSE;
 664         }
 665
 666         switch (status) {
 667         case TAPI_SIM_STATUS_UNKNOWN:
 668         case TAPI_SIM_STATUS_CARD_ERROR:
 669         case TAPI_SIM_STATUS_CARD_NOT_PRESENT:
 670         case TAPI_SIM_STATUS_CARD_BLOCKED:
 671         case TAPI_SIM_STATUS_SIM_INIT_COMPLETED:
 672                 break;
 673         case TAPI_SIM_STATUS_SIM_PIN_REQUIRED:
 674         case TAPI_SIM_STATUS_SIM_INITIALIZING:
 675         case TAPI_SIM_STATUS_SIM_PUK_REQUIRED:
 676         case TAPI_SIM_STATUS_SIM_LOCK_REQUIRED:
 677         case TAPI_SIM_STATUS_SIM_NCK_REQUIRED:
 678         case TAPI_SIM_STATUS_SIM_NSCK_REQUIRED:
 679         case TAPI_SIM_STATUS_SIM_SPCK_REQUIRED:
 680         case TAPI_SIM_STATUS_SIM_CCK_REQUIRED:
 681                 tel_register_noti_event(tapi_handle, TAPI_NOTI_SIM_STATUS,
 682                                 _tapi_noti_sim_status_cb, NULL);
 683                 return FALSE;
 684         default:
 685                 ERR("not defined status(%d)", status);
 686                 break;
 687         }
 688
 689         netconfig_tel_deinit();
 690
 691         return TRUE;
 692 }
 693
 694 static void __netconfig_telephony_ready_changed_cb(keynode_t * node, void *data)
 695 {
 696         int telephony_ready = 0;
 697
 698         if (node != NULL)
 699                 telephony_ready = vconf_keynode_get_bool(node);
 700         else
 701                 netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_READY, &telephony_ready);
 702
 703         if (telephony_ready != 0) {
 704                 if (netconfig_tapi_check_sim_state() == FALSE) {
 705                         DBG("Sim is not initialized yet.");
 706
 707                         goto done;
 708                 }
 709         } else
 710                 return;
 711
 712         DBG("Turn Wi-Fi on automatically");
 713
 714 #if defined TIZEN_WEARABLE
 715         wifi_power_on_wearable(TRUE);
 716 #else
 717         wifi_power_on();
 718 #endif
 719
 720 done:
 721         vconf_ignore_key_changed(VCONFKEY_TELEPHONY_READY, __netconfig_telephony_ready_changed_cb);
 722 }
 723
 724 int wifi_power_driver_and_supplicant(gboolean enable)
 725 {
 726         /* There are 3 thumb rules for Wi-Fi power management
 727          *   1. Do not make exposed API to control wpa_supplicant and driver directly.
 728          *      It probably breaks ConnMan technology operation.
 729          *
 730          *   2. Do not remove driver and wpa_supplicant if ConnMan already enabled.
 731          *      It breaks ConnMan technology operation.
 732          *
 733          *   3. Final the best rule: make it as simple as possible.
 734          *      Simple code enables easy maintenance and reduces logical errors.
 735          */
 736         if (enable == TRUE) {
 737                 return _load_driver_and_supplicant();
 738         } else {
 739                 if (connman_wifi_technology_state == TRUE)
 740                         return -ENOSYS;
 741
 742                 return _remove_driver_and_supplicant();
 743         }
 744 }
 745
 746 void wifi_power_disable_technology_state_by_only_connman_signal(void)
 747 {
 748         /* Important: it's only done by ConnMan technology signal update */
 749         connman_wifi_technology_state = FALSE;
 750 }
 751
 752 void wifi_power_recover_firmware(void)
 753 {
 754         wifi_firmware_recovery_mode = TRUE;
 755
 756         netconfig_wifi_bgscan_stop();
 757
 758         wifi_power_off();
 759 }
 760
 761 int wifi_power_on(void)
 762 {
 763         int err = 0;
 764         wifi_tech_state_e tech_state;
 765
 766         tech_state = wifi_state_get_technology_state();
 767         if (tech_state >= NETCONFIG_WIFI_TECH_POWERED) {
 768                 /* There can be a scenario where wifi is automatically *
 769                  * activated by connman if wifi was powered in last boot. *
 770                  * So we should update connman_wifi_technology_state variable *
 771                  * if it is found that wifi_tech_state variable is *
 772                  * NETCONFIG_WIFI_TECH_POWERED and connman_wifi_technology_state *
 773                  * variable is FALSE. Earlier connman_wifi_technology_state *
 774                  * variable was only updated when wifi was Powered on from *
 775                  * net-config resulting in variable not getting updated. *
 776                  * This caused wifi to not get deactivated after reboot if *
 777                  * last power state was activated */
 778                 ERR("Net-Config WiFi connman technology state %d",
 779                                 connman_wifi_technology_state);
 780                 if (connman_wifi_technology_state == FALSE)
 781                         connman_wifi_technology_state = TRUE;
 782                 return -EALREADY;
 783         }
 784
 785         if (__is_wifi_restricted() == TRUE)
 786                 return -EPERM;
 787
 788         if (netconfig_is_wifi_tethering_on() == TRUE) {
 789                 /* TODO: Wi-Fi tethering turns off here */
 790                 /* return TRUE; */
 791                 ERR("Failed to turn tethering off");
 792                 return -EBUSY;
 793         }
 794
 795 #if defined TIZEN_P2P_ENABLE && !defined WLAN_CONCURRENT_MODE
 796         if (netconfig_is_wifi_direct_on() == TRUE) {
 797                 if (__netconfig_wifi_direct_power_off() == TRUE)
 798                         return -EINPROGRESS;
 799                 else {
 800                         ERR("Failed to turn Wi-Fi direct off");
 801                         return -EBUSY;
 802                 }
 803         }
 804 #endif
 805
 806         err = wifi_power_driver_and_supplicant(TRUE);
 807         if (err < 0 && err != -EALREADY)
 808                 return err;
 809
 810         err = _set_connman_technology_power(TRUE);
 811
 812         return err;
 813 }
 814
 815 int wifi_power_off(void)
 816 {
 817         int err;
 818
 819         err = _set_connman_technology_power(FALSE);
 820         if (err == -EALREADY)
 821                 wifi_state_update_power_state(FALSE);
 822
 823         return 0;
 824 }
 825
 826 #if defined TIZEN_WEARABLE
 827 int wifi_power_on_wearable(gboolean device_picker_test)
 828 {
 829         int err = 0;
 830         int wifi_use = 1;
 831         wifi_tech_state_e tech_state;
 832
 833         tech_state = wifi_state_get_technology_state();
 834         if (tech_state >= NETCONFIG_WIFI_TECH_POWERED)
 835                 return -EALREADY;
 836
 837         if (netconfig_vconf_get_int(VCONF_WIFI_WEARABLE_WIFI_USE, &wifi_use) < 0) {
 838                 ERR("Fail to get VCONF_WIFI_WEARABLE_WIFI_USE");
 839                 return -EIO;
 840         }
 841
 842         if (wifi_use == 0) {
 843                 WARN("VCONF_WIFI_WEARABLE_WIFI_USE is OFF");
 844                 return -EPERM;
 845         }
 846
 847         err = wifi_power_driver_and_supplicant(TRUE);
 848         if (err < 0 && err != -EALREADY)
 849                 return err;
 850
 851         err = _set_connman_technology_power(TRUE);
 852
 853         if (device_picker_test == TRUE)
 854                 netconfig_wifi_enable_device_picker_test();
 855
 856         return err;
 857 }
 858 #endif
 859
 860 void wifi_power_initialize(void)
 861 {
 862         int wifi_last_power_state = 0;
 863
 864         /* Initialize Airplane mode */
 865         netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_FLIGHT_MODE, &airplane_mode);
 866         DBG("Airplane[%s]", airplane_mode > 0 ? "ON" : "OFF");
 867
 868         /* Update the last Wi-Fi power state */
 869         netconfig_vconf_get_int(VCONF_WIFI_LAST_POWER_STATE, &wifi_last_power_state);
 870         if (wifi_last_power_state > VCONFKEY_WIFI_OFF) {
 871                 if (TIZEN_TELEPHONY_ENABLE) {
 872                         int telephony_ready = 0;
 873                         netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_READY, &telephony_ready);
 874                         if (telephony_ready == 0) {
 875                                 DBG("Telephony API is not initialized yet");
 876                                 vconf_notify_key_changed(VCONFKEY_TELEPHONY_READY,
 877                                                 __netconfig_telephony_ready_changed_cb, NULL);
 878                         } else {
 879                                 if (netconfig_tapi_check_sim_state() == FALSE)
 880                                         DBG("SIM is not initialized yet");
 881                         }
 882                 }
 883                 DBG("Turn Wi-Fi on automatically");
 884 #if defined TIZEN_WEARABLE
 885                 wifi_power_on_wearable(TRUE);
 886 #else
 887                 wifi_power_on();
 888 #endif
 889         }
 890
 891 #if defined TIZEN_WEARABLE
 892         vconf_notify_key_changed(VCONF_WIFI_WEARABLE_WIFI_USE, __wearable_wifi_use_changed_cb, NULL);
 893
 894         vconf_notify_key_changed(VCONFKEY_TELEPHONY_FLIGHT_MODE,
 895                         __netconfig_wifi_airplane_mode, NULL);
 896 #else
 897         vconf_notify_key_changed(VCONFKEY_SETAPPL_NETWORK_RESTRICT_MODE,
 898                         __netconfig_wifi_restrict_mode, NULL);
 899         vconf_notify_key_changed(VCONFKEY_TELEPHONY_FLIGHT_MODE,
 900                         __netconfig_wifi_airplane_mode, NULL);
 901 #endif
 902
 903         vconf_notify_key_changed(VCONFKEY_SETAPPL_PSMODE, __emergency_mode_changed_cb, NULL);
 904         vconf_notify_key_changed(VCONFKEY_PM_STATE, __pm_state_changed_cb, NULL);
 905 }
 906
 907 void wifi_power_deinitialize(void)
 908 {
 909 }
 910
 911 gboolean handle_load_driver(Wifi *wifi,
 912                 GDBusMethodInvocation *context, gboolean device_picker_test)
 913 {
 914         int err;
 915
 916         DBG("Wi-Fi power on requested");
 917
 918         g_return_val_if_fail(wifi != NULL, FALSE);
 919
 920         if (!netconfig_dpm_update_from_wifi()) {
 921                 DBG("DPM policy restricts Wi-Fi");
 922                 netconfig_error_permission_denied(context);
 923                 return TRUE;
 924         }
 925
 926         if (TIZEN_WLAN_BOARD_SPRD)
 927                 wifi_firmware_download();
 928
 929 #if defined TIZEN_WEARABLE
 930         err = wifi_power_on_wearable(device_picker_test);
 931 #else
 932         err = wifi_power_on();
 933
 934         if (device_picker_test == TRUE)
 935                 netconfig_wifi_enable_device_picker_test();
 936 #endif
 937         if (err < 0) {
 938                 if (err == -EINPROGRESS)
 939                         netconfig_error_inprogress(context);
 940                 else if (err == -EALREADY)
 941                         netconfig_error_already_exists(context);
 942                 else if (err == -EPERM)
 943                         netconfig_error_permission_denied(context);
 944                 else
 945                         netconfig_error_wifi_driver_failed(context);
 946
 947                 return TRUE;
 948         }
 949
 950
 951         netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
 952         __netconfig_set_wifi_bssid();
 953
 954         wifi_complete_load_driver(wifi, context);
 955         return TRUE;
 956 }
 957
 958 gboolean handle_remove_driver(Wifi *wifi, GDBusMethodInvocation *context)
 959 {
 960         int err;
 961
 962         DBG("Wi-Fi power off requested");
 963
 964         g_return_val_if_fail(wifi != NULL, FALSE);
 965
 966         err = wifi_power_off();
 967         if (err < 0) {
 968                 if (err == -EINPROGRESS)
 969                         netconfig_error_inprogress(context);
 970                 else if (err == -EALREADY)
 971                         netconfig_error_already_exists(context);
 972                 else if (err == -EPERM)
 973                         netconfig_error_permission_denied(context);
 974                 else
 975                         netconfig_error_wifi_driver_failed(context);
 976                 return TRUE;
 977         }
 978
 979         netconfig_set_vconf_int(VCONF_WIFI_OFF_STATE_BY_AIRPLANE, 0);
 980
 981         wifi_complete_remove_driver(wifi, context);
 982         return TRUE;
 983 }
 984
 985 gboolean handle_load_p2p_driver(Wifi *wifi, GDBusMethodInvocation *context)
 986 {
 987         ERR("Deprecated");
 988
 989         wifi_complete_load_p2p_driver(wifi, context);
 990         return TRUE;
 991 }
 992
 993 gboolean handle_remove_p2p_driver(Wifi *wifi, GDBusMethodInvocation *context)
 994 {
 995         ERR("Deprecated");
 996
 997         wifi_complete_remove_p2p_driver(wifi, context);
 998         return TRUE;
 999 }
1000
1001 static int __netconfig_get_random_mac(unsigned char *mac_buf, int mac_len)
1002 {
1003         DBG("Generate Random Mac address of ethernet");
1004         FILE *fp;
1005         int rc;
1006
1007         fp = fopen(OS_RANDOM_FILE, "rb");
1008
1009         if (fp == NULL) {
1010                 ERR("Could not open /dev/urandom");
1011                 return -1;
1012         }
1013         rc = fread(mac_buf, 1, mac_len, fp);
1014         if (fp)
1015                 fclose(fp);
1016
1017         return rc != mac_len ? -1 : 0;
1018 }
1019
1020 void __netconfig_set_ether_macaddr()
1021 {
1022         DBG("Set wired Mac address ");
1023         char *mac_addr = NULL;
1024         char rand_addr[WLAN_MAC_ADDR_MAX];
1025         int rv = -1;
1026
1027         mac_addr = vconf_get_str(VCONF_ETH_MAC_ADDRESS);
1028         if (mac_addr == NULL) {
1029                 DBG("vconf_get_str Failed\n");
1030                 return;
1031         }
1032         /* Checking Invalid MAC Address */
1033         if ((strlen(mac_addr) == 0)) {
1034                 ERR("Failed to get valid MAC Address from vconf");
1035                 /*Generate the Random Mac address*/
1036                 unsigned char rand_mac_add[ETH_MAC_ADDR_SIZE+1];
1037
1038                 if (__netconfig_get_random_mac(rand_mac_add, ETH_MAC_ADDR_SIZE) == -1) {
1039
1040                         ERR("Could not generate the Random Mac address");
1041                         free(mac_addr);
1042                         return;
1043                 }
1044
1045                 rand_mac_add[0] &= 0xFE; /*Clear multicase bit*/
1046                 rand_mac_add[0] |= 0x02; /*set local assignment bit*/
1047
1048                 /*Set the Mac address in Vconf*/
1049                 snprintf(rand_addr, WLAN_MAC_ADDR_MAX, "%x:%x:%x:%x:%x:%x",
1050                                 rand_mac_add[0], rand_mac_add[1],
1051                                 rand_mac_add[2], rand_mac_add[3],
1052                                 rand_mac_add[4], rand_mac_add[5]);
1053
1054                 netconfig_set_vconf_str(VCONF_ETH_MAC_ADDRESS, rand_addr);
1055         } else { /* Valid MAC address */
1056                 strncpy(rand_addr, mac_addr, strlen(mac_addr));
1057                 rand_addr[strlen(mac_addr)] = '\0';
1058         }
1059
1060         DBG("MAC Address of eth0 [%s]", rand_addr);
1061         const char *path = NET_EXEC_PATH;
1062         char *const args[] = { "/sbin/ifconfig", "eth0", "hw",
1063                 "ether", rand_addr, "up", NULL};
1064         char *const envs[] = { NULL };
1065         rv = netconfig_execute_file(path, args, envs);
1066
1067         if (rv < 0)
1068                 ERR("Unable to execute system command");
1069         free(mac_addr);
1070
1071 }