src/device.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2014  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <errno.h>
  27 #include <string.h>
  28 #include <unistd.h>
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31 #include <sys/ioctl.h>
  32 #include <net/ethernet.h>
  33 #include <net/if.h>
  34
  35 #include "connman.h"
  36
  37 static GSList *device_list = NULL;
  38 static gchar **device_filter = NULL;
  39 static gchar **nodevice_filter = NULL;
  40
  41 enum connman_pending_type {
  42         PENDING_NONE    = 0,
  43         PENDING_ENABLE  = 1,
  44         PENDING_DISABLE = 2,
  45 };
  46
  47 struct connman_device {
  48         int refcount;
  49         enum connman_device_type type;
  50         enum connman_pending_type powered_pending;      /* Indicates a pending
  51                                                          * enable/disable
  52                                                          * request
  53                                                          */
  54         bool powered;
  55         bool scanning;
  56         char *name;
  57         char *node;
  58         char *address;
  59         char *interface;
  60         char *ident;
  61         char *path;
  62         int index;
  63         guint pending_timeout;
  64
  65         struct connman_device_driver *driver;
  66         void *driver_data;
  67
  68         char *last_network;
  69         struct connman_network *network;
  70         GHashTable *networks;
  71 };
  72
  73 static void clear_pending_trigger(struct connman_device *device)
  74 {
  75         if (device->pending_timeout > 0) {
  76                 g_source_remove(device->pending_timeout);
  77                 device->pending_timeout = 0;
  78         }
  79 }
  80
  81 static const char *type2description(enum connman_device_type type)
  82 {
  83         switch (type) {
  84         case CONNMAN_DEVICE_TYPE_UNKNOWN:
  85         case CONNMAN_DEVICE_TYPE_VENDOR:
  86                 break;
  87         case CONNMAN_DEVICE_TYPE_ETHERNET:
  88                 return "Ethernet";
  89         case CONNMAN_DEVICE_TYPE_WIFI:
  90                 return "Wireless";
  91         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
  92                 return "Bluetooth";
  93         case CONNMAN_DEVICE_TYPE_GPS:
  94                 return "GPS";
  95         case CONNMAN_DEVICE_TYPE_CELLULAR:
  96                 return "Cellular";
  97         case CONNMAN_DEVICE_TYPE_GADGET:
  98                 return "Gadget";
  99
 100         }
 101
 102         return NULL;
 103 }
 104
 105 static const char *type2string(enum connman_device_type type)
 106 {
 107         switch (type) {
 108         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 109         case CONNMAN_DEVICE_TYPE_VENDOR:
 110                 break;
 111         case CONNMAN_DEVICE_TYPE_ETHERNET:
 112                 return "ethernet";
 113         case CONNMAN_DEVICE_TYPE_WIFI:
 114                 return "wifi";
 115         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 116                 return "bluetooth";
 117         case CONNMAN_DEVICE_TYPE_GPS:
 118                 return "gps";
 119         case CONNMAN_DEVICE_TYPE_CELLULAR:
 120                 return "cellular";
 121         case CONNMAN_DEVICE_TYPE_GADGET:
 122                 return "gadget";
 123
 124         }
 125
 126         return NULL;
 127 }
 128
 129 enum connman_service_type __connman_device_get_service_type(
 130                                 struct connman_device *device)
 131 {
 132         enum connman_device_type type = connman_device_get_type(device);
 133
 134         switch (type) {
 135         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 136         case CONNMAN_DEVICE_TYPE_VENDOR:
 137         case CONNMAN_DEVICE_TYPE_GPS:
 138                 break;
 139         case CONNMAN_DEVICE_TYPE_ETHERNET:
 140                 return CONNMAN_SERVICE_TYPE_ETHERNET;
 141         case CONNMAN_DEVICE_TYPE_WIFI:
 142                 return CONNMAN_SERVICE_TYPE_WIFI;
 143         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 144                 return CONNMAN_SERVICE_TYPE_BLUETOOTH;
 145         case CONNMAN_DEVICE_TYPE_CELLULAR:
 146                 return CONNMAN_SERVICE_TYPE_CELLULAR;
 147         case CONNMAN_DEVICE_TYPE_GADGET:
 148                 return CONNMAN_SERVICE_TYPE_GADGET;
 149
 150         }
 151
 152         return CONNMAN_SERVICE_TYPE_UNKNOWN;
 153 }
 154
 155 static gboolean device_pending_reset(gpointer user_data)
 156 {
 157         struct connman_device *device = user_data;
 158
 159         DBG("device %p", device);
 160
 161         /* Power request timedout, reset power pending state. */
 162         device->pending_timeout = 0;
 163         device->powered_pending = PENDING_NONE;
 164
 165         return FALSE;
 166 }
 167
 168 int __connman_device_enable(struct connman_device *device)
 169 {
 170         int err;
 171
 172         DBG("device %p", device);
 173
 174         if (!device->driver || !device->driver->enable)
 175                 return -EOPNOTSUPP;
 176
 177         /* There is an ongoing power disable request. */
 178         if (device->powered_pending == PENDING_DISABLE)
 179                 return -EBUSY;
 180
 181         if (device->powered_pending == PENDING_ENABLE)
 182                 return -EALREADY;
 183
 184         if (device->powered_pending == PENDING_NONE && device->powered)
 185                 return -EALREADY;
 186
 187         if (device->index > 0) {
 188                 err = connman_inet_ifup(device->index);
 189                 if (err < 0 && err != -EALREADY)
 190                         return err;
 191         }
 192
 193         device->powered_pending = PENDING_ENABLE;
 194
 195         err = device->driver->enable(device);
 196         /*
 197          * device gets enabled right away.
 198          * Invoke the callback
 199          */
 200         if (err == 0) {
 201                 connman_device_set_powered(device, true);
 202                 goto done;
 203         }
 204
 205         if (err == -EALREADY) {
 206                 /* If device is already powered, but connman is not updated */
 207                 connman_device_set_powered(device, true);
 208                 goto done;
 209         }
 210         /*
 211          * if err == -EINPROGRESS, then the DBus call to the respective daemon
 212          * was successful. We set a 4 sec timeout so if the daemon never
 213          * returns a reply, we would reset the pending request.
 214          */
 215         if (err == -EINPROGRESS)
 216                 device->pending_timeout = g_timeout_add_seconds(4,
 217                                         device_pending_reset, device);
 218 done:
 219         return err;
 220 }
 221
 222 int __connman_device_disable(struct connman_device *device)
 223 {
 224         int err;
 225
 226         DBG("device %p", device);
 227
 228         /* Ongoing power enable request */
 229         if (device->powered_pending == PENDING_ENABLE)
 230                 return -EBUSY;
 231
 232         if (device->powered_pending == PENDING_DISABLE)
 233                 return -EALREADY;
 234
 235         if (device->powered_pending == PENDING_NONE && !device->powered)
 236                 return -EALREADY;
 237
 238         device->powered_pending = PENDING_DISABLE;
 239
 240         if (device->network) {
 241                 struct connman_service *service =
 242                         connman_service_lookup_from_network(device->network);
 243
 244                 if (service)
 245                         __connman_service_disconnect(service);
 246                 else
 247                         connman_network_set_connected(device->network, false);
 248         }
 249
 250         if (!device->driver || !device->driver->disable)
 251                 return -EOPNOTSUPP;
 252
 253         err = device->driver->disable(device);
 254         if (err == 0 || err == -EALREADY) {
 255                 connman_device_set_powered(device, false);
 256                 goto done;
 257         }
 258
 259         if (err == -EINPROGRESS)
 260                 device->pending_timeout = g_timeout_add_seconds(4,
 261                                         device_pending_reset, device);
 262 done:
 263         return err;
 264 }
 265
 266 static void probe_driver(struct connman_device_driver *driver)
 267 {
 268         GSList *list;
 269
 270         DBG("driver %p name %s", driver, driver->name);
 271
 272         for (list = device_list; list; list = list->next) {
 273                 struct connman_device *device = list->data;
 274
 275                 if (device->driver)
 276                         continue;
 277
 278                 if (driver->type != device->type)
 279                         continue;
 280
 281                 if (driver->probe(device) < 0)
 282                         continue;
 283
 284                 device->driver = driver;
 285
 286                 __connman_technology_add_device(device);
 287         }
 288 }
 289
 290 static void remove_device(struct connman_device *device)
 291 {
 292         DBG("device %p", device);
 293
 294         __connman_device_disable(device);
 295
 296         __connman_technology_remove_device(device);
 297
 298         if (device->driver->remove)
 299                 device->driver->remove(device);
 300
 301         device->driver = NULL;
 302 }
 303
 304 static void remove_driver(struct connman_device_driver *driver)
 305 {
 306         GSList *list;
 307
 308         DBG("driver %p name %s", driver, driver->name);
 309
 310         for (list = device_list; list; list = list->next) {
 311                 struct connman_device *device = list->data;
 312
 313                 if (device->driver == driver)
 314                         remove_device(device);
 315         }
 316 }
 317
 318 bool __connman_device_has_driver(struct connman_device *device)
 319 {
 320         if (!device || !device->driver)
 321                 return false;
 322
 323         return true;
 324 }
 325
 326 static GSList *driver_list = NULL;
 327
 328 static gint compare_priority(gconstpointer a, gconstpointer b)
 329 {
 330         const struct connman_device_driver *driver1 = a;
 331         const struct connman_device_driver *driver2 = b;
 332
 333         return driver2->priority - driver1->priority;
 334 }
 335
 336 /**
 337  * connman_device_driver_register:
 338  * @driver: device driver definition
 339  *
 340  * Register a new device driver
 341  *
 342  * Returns: %0 on success
 343  */
 344 int connman_device_driver_register(struct connman_device_driver *driver)
 345 {
 346         DBG("driver %p name %s", driver, driver->name);
 347
 348         driver_list = g_slist_insert_sorted(driver_list, driver,
 349                                                         compare_priority);
 350         probe_driver(driver);
 351
 352         return 0;
 353 }
 354
 355 /**
 356  * connman_device_driver_unregister:
 357  * @driver: device driver definition
 358  *
 359  * Remove a previously registered device driver
 360  */
 361 void connman_device_driver_unregister(struct connman_device_driver *driver)
 362 {
 363         DBG("driver %p name %s", driver, driver->name);
 364
 365         driver_list = g_slist_remove(driver_list, driver);
 366
 367         remove_driver(driver);
 368 }
 369
 370 static void free_network(gpointer data)
 371 {
 372         struct connman_network *network = data;
 373
 374         DBG("network %p", network);
 375
 376         __connman_network_set_device(network, NULL);
 377
 378         connman_network_unref(network);
 379 }
 380
 381 static void device_destruct(struct connman_device *device)
 382 {
 383         DBG("device %p name %s", device, device->name);
 384
 385         clear_pending_trigger(device);
 386
 387         g_hash_table_destroy(device->networks);
 388         device->networks = NULL;
 389
 390         g_free(device->ident);
 391         g_free(device->node);
 392         g_free(device->name);
 393         g_free(device->address);
 394         g_free(device->interface);
 395         g_free(device->path);
 396
 397         g_free(device->last_network);
 398
 399         g_free(device);
 400 }
 401
 402 /**
 403  * connman_device_create:
 404  * @node: device node name (for example an address)
 405  * @type: device type
 406  *
 407  * Allocate a new device of given #type and assign the #node name to it.
 408  *
 409  * Returns: a newly-allocated #connman_device structure
 410  */
 411 struct connman_device *connman_device_create(const char *node,
 412                                                 enum connman_device_type type)
 413 {
 414         struct connman_device *device;
 415
 416         DBG("node %s type %d", node, type);
 417
 418         device = g_try_new0(struct connman_device, 1);
 419         if (!device)
 420                 return NULL;
 421
 422         DBG("device %p", device);
 423
 424         device->refcount = 1;
 425
 426         device->type = type;
 427         device->name = g_strdup(type2description(device->type));
 428
 429         device->networks = g_hash_table_new_full(g_str_hash, g_str_equal,
 430                                                 g_free, free_network);
 431
 432         device_list = g_slist_prepend(device_list, device);
 433
 434         return device;
 435 }
 436
 437 /**
 438  * connman_device_ref:
 439  * @device: device structure
 440  *
 441  * Increase reference counter of device
 442  */
 443 struct connman_device *connman_device_ref_debug(struct connman_device *device,
 444                                 const char *file, int line, const char *caller)
 445 {
 446         DBG("%p ref %d by %s:%d:%s()", device, device->refcount + 1,
 447                 file, line, caller);
 448
 449         __sync_fetch_and_add(&device->refcount, 1);
 450
 451         return device;
 452 }
 453
 454 /**
 455  * connman_device_unref:
 456  * @device: device structure
 457  *
 458  * Decrease reference counter of device
 459  */
 460 void connman_device_unref_debug(struct connman_device *device,
 461                                 const char *file, int line, const char *caller)
 462 {
 463         DBG("%p ref %d by %s:%d:%s()", device, device->refcount - 1,
 464                 file, line, caller);
 465
 466         if (__sync_fetch_and_sub(&device->refcount, 1) != 1)
 467                 return;
 468
 469         if (device->driver) {
 470                 device->driver->remove(device);
 471                 device->driver = NULL;
 472         }
 473
 474         device_list = g_slist_remove(device_list, device);
 475
 476         device_destruct(device);
 477 }
 478
 479 const char *__connman_device_get_type(struct connman_device *device)
 480 {
 481         return type2string(device->type);
 482 }
 483
 484 /**
 485  * connman_device_get_type:
 486  * @device: device structure
 487  *
 488  * Get type of device
 489  */
 490 enum connman_device_type connman_device_get_type(struct connman_device *device)
 491 {
 492         return device->type;
 493 }
 494
 495 /**
 496  * connman_device_set_index:
 497  * @device: device structure
 498  * @index: index number
 499  *
 500  * Set index number of device
 501  */
 502 void connman_device_set_index(struct connman_device *device, int index)
 503 {
 504         device->index = index;
 505 }
 506
 507 /**
 508  * connman_device_get_index:
 509  * @device: device structure
 510  *
 511  * Get index number of device
 512  */
 513 int connman_device_get_index(struct connman_device *device)
 514 {
 515         return device->index;
 516 }
 517
 518 /**
 519  * connman_device_set_interface:
 520  * @device: device structure
 521  * @interface: interface name
 522  *
 523  * Set interface name of device
 524  */
 525 void connman_device_set_interface(struct connman_device *device,
 526                                                 const char *interface)
 527 {
 528         g_free(device->interface);
 529         device->interface = g_strdup(interface);
 530
 531         if (!device->name) {
 532                 const char *str = type2description(device->type);
 533                 if (str && device->interface)
 534                         device->name = g_strdup_printf("%s (%s)", str,
 535                                                         device->interface);
 536         }
 537 }
 538
 539 /**
 540  * connman_device_set_ident:
 541  * @device: device structure
 542  * @ident: unique identifier
 543  *
 544  * Set unique identifier of device
 545  */
 546 void connman_device_set_ident(struct connman_device *device,
 547                                                         const char *ident)
 548 {
 549         g_free(device->ident);
 550         device->ident = g_strdup(ident);
 551 }
 552
 553 const char *connman_device_get_ident(struct connman_device *device)
 554 {
 555         return device->ident;
 556 }
 557
 558 /**
 559  * connman_device_set_powered:
 560  * @device: device structure
 561  * @powered: powered state
 562  *
 563  * Change power state of device
 564  */
 565 int connman_device_set_powered(struct connman_device *device,
 566                                                 bool powered)
 567 {
 568         enum connman_service_type type;
 569
 570         DBG("device %p powered %d", device, powered);
 571
 572         if (device->powered == powered)
 573                 return -EALREADY;
 574
 575         clear_pending_trigger(device);
 576
 577         device->powered_pending = PENDING_NONE;
 578
 579         device->powered = powered;
 580
 581         type = __connman_device_get_service_type(device);
 582
 583         if (!device->powered) {
 584                 __connman_technology_disabled(type);
 585                 return 0;
 586         }
 587
 588         __connman_technology_enabled(type);
 589
 590         device->scanning = false;
 591
 592         if (device->driver && device->driver->scan)
 593                 device->driver->scan(CONNMAN_SERVICE_TYPE_UNKNOWN, device,
 594                                         NULL, 0, NULL, NULL, NULL, NULL);
 595
 596         return 0;
 597 }
 598
 599 bool connman_device_get_powered(struct connman_device *device)
 600 {
 601         return device->powered;
 602 }
 603
 604 static int device_scan(enum connman_service_type type,
 605                                 struct connman_device *device)
 606 {
 607         if (!device->driver || !device->driver->scan)
 608                 return -EOPNOTSUPP;
 609
 610         if (!device->powered)
 611                 return -ENOLINK;
 612
 613         return device->driver->scan(type, device, NULL, 0,
 614                                         NULL, NULL, NULL, NULL);
 615 }
 616
 617 int __connman_device_disconnect(struct connman_device *device)
 618 {
 619         GHashTableIter iter;
 620         gpointer key, value;
 621
 622         DBG("device %p", device);
 623
 624         g_hash_table_iter_init(&iter, device->networks);
 625
 626         while (g_hash_table_iter_next(&iter, &key, &value)) {
 627                 struct connman_network *network = value;
 628
 629                 if (connman_network_get_connecting(network)) {
 630                         /*
 631                          * Skip network in the process of connecting.
 632                          * This is a workaround for WiFi networks serviced
 633                          * by the supplicant plugin that hold a reference
 634                          * to the network.  If we disconnect the network
 635                          * here then the referenced object will not be
 636                          * registered and usage (like launching DHCP client)
 637                          * will fail.  There is nothing to be gained by
 638                          * removing the network here anyway.
 639                          */
 640                         connman_warn("Skipping disconnect of %s, network is connecting.",
 641                                 connman_network_get_identifier(network));
 642                         continue;
 643                 }
 644
 645                 __connman_network_disconnect(network);
 646         }
 647
 648         return 0;
 649 }
 650
 651 int connman_device_reconnect_service(struct connman_device *device)
 652 {
 653         DBG("device %p", device);
 654
 655         __connman_service_auto_connect(CONNMAN_SERVICE_CONNECT_REASON_AUTO);
 656
 657         return 0;
 658 }
 659
 660 static void mark_network_available(gpointer key, gpointer value,
 661                                                         gpointer user_data)
 662 {
 663         struct connman_network *network = value;
 664
 665         connman_network_set_available(network, true);
 666 }
 667
 668 static void mark_network_unavailable(gpointer key, gpointer value,
 669                                                         gpointer user_data)
 670 {
 671         struct connman_network *network = value;
 672
 673         if (connman_network_get_connected(network) ||
 674                         connman_network_get_connecting(network))
 675                 return;
 676
 677         connman_network_set_available(network, false);
 678 }
 679
 680 static gboolean remove_unavailable_network(gpointer key, gpointer value,
 681                                                         gpointer user_data)
 682 {
 683         struct connman_network *network = value;
 684
 685         if (connman_network_get_connected(network))
 686                 return FALSE;
 687
 688         if (connman_network_get_available(network))
 689                 return FALSE;
 690
 691         return TRUE;
 692 }
 693
 694 void __connman_device_cleanup_networks(struct connman_device *device)
 695 {
 696         g_hash_table_foreach_remove(device->networks,
 697                                         remove_unavailable_network, NULL);
 698 }
 699
 700 bool connman_device_get_scanning(struct connman_device *device)
 701 {
 702         return device->scanning;
 703 }
 704
 705 void connman_device_reset_scanning(struct connman_device *device)
 706 {
 707         g_hash_table_foreach(device->networks,
 708                                 mark_network_available, NULL);
 709 }
 710
 711 /**
 712  * connman_device_set_scanning:
 713  * @device: device structure
 714  * @scanning: scanning state
 715  *
 716  * Change scanning state of device
 717  */
 718 int connman_device_set_scanning(struct connman_device *device,
 719                                 enum connman_service_type type, bool scanning)
 720 {
 721         DBG("device %p scanning %d", device, scanning);
 722
 723         if (!device->driver || !device->driver->scan)
 724                 return -EINVAL;
 725
 726         if (device->scanning == scanning)
 727                 return -EALREADY;
 728
 729         device->scanning = scanning;
 730
 731         if (scanning) {
 732                 __connman_technology_scan_started(device);
 733
 734                 g_hash_table_foreach(device->networks,
 735                                         mark_network_unavailable, NULL);
 736
 737                 return 0;
 738         }
 739
 740         __connman_device_cleanup_networks(device);
 741
 742         __connman_technology_scan_stopped(device, type);
 743
 744         __connman_service_auto_connect(CONNMAN_SERVICE_CONNECT_REASON_AUTO);
 745
 746         return 0;
 747 }
 748
 749 /**
 750  * connman_device_set_string:
 751  * @device: device structure
 752  * @key: unique identifier
 753  * @value: string value
 754  *
 755  * Set string value for specific key
 756  */
 757 int connman_device_set_string(struct connman_device *device,
 758                                         const char *key, const char *value)
 759 {
 760         DBG("device %p key %s value %s", device, key, value);
 761
 762         if (g_str_equal(key, "Address")) {
 763                 g_free(device->address);
 764                 device->address = g_strdup(value);
 765         } else if (g_str_equal(key, "Name")) {
 766                 g_free(device->name);
 767                 device->name = g_strdup(value);
 768         } else if (g_str_equal(key, "Node")) {
 769                 g_free(device->node);
 770                 device->node = g_strdup(value);
 771         } else if (g_str_equal(key, "Path")) {
 772                 g_free(device->path);
 773                 device->path = g_strdup(value);
 774         } else {
 775                 return -EINVAL;
 776         }
 777
 778         return 0;
 779 }
 780
 781 /**
 782  * connman_device_get_string:
 783  * @device: device structure
 784  * @key: unique identifier
 785  *
 786  * Get string value for specific key
 787  */
 788 const char *connman_device_get_string(struct connman_device *device,
 789                                                         const char *key)
 790 {
 791         DBG("device %p key %s", device, key);
 792
 793         if (g_str_equal(key, "Address"))
 794                 return device->address;
 795         else if (g_str_equal(key, "Name"))
 796                 return device->name;
 797         else if (g_str_equal(key, "Node"))
 798                 return device->node;
 799         else if (g_str_equal(key, "Interface"))
 800                 return device->interface;
 801         else if (g_str_equal(key, "Path"))
 802                 return device->path;
 803
 804         return NULL;
 805 }
 806
 807 /**
 808  * connman_device_add_network:
 809  * @device: device structure
 810  * @network: network structure
 811  *
 812  * Add new network to the device
 813  */
 814 int connman_device_add_network(struct connman_device *device,
 815                                         struct connman_network *network)
 816 {
 817         const char *identifier = connman_network_get_identifier(network);
 818
 819         DBG("device %p network %p", device, network);
 820
 821         if (!identifier)
 822                 return -EINVAL;
 823
 824         connman_network_ref(network);
 825
 826         __connman_network_set_device(network, device);
 827
 828         g_hash_table_replace(device->networks, g_strdup(identifier),
 829                                                                 network);
 830
 831         return 0;
 832 }
 833
 834 /**
 835  * connman_device_get_network:
 836  * @device: device structure
 837  * @identifier: network identifier
 838  *
 839  * Get network for given identifier
 840  */
 841 struct connman_network *connman_device_get_network(struct connman_device *device,
 842                                                         const char *identifier)
 843 {
 844         DBG("device %p identifier %s", device, identifier);
 845
 846         return g_hash_table_lookup(device->networks, identifier);
 847 }
 848
 849 /**
 850  * connman_device_remove_network:
 851  * @device: device structure
 852  * @identifier: network identifier
 853  *
 854  * Remove network for given identifier
 855  */
 856 int connman_device_remove_network(struct connman_device *device,
 857                                                 struct connman_network *network)
 858 {
 859         const char *identifier;
 860
 861         DBG("device %p network %p", device, network);
 862
 863         if (!network)
 864                 return 0;
 865
 866         identifier = connman_network_get_identifier(network);
 867         g_hash_table_remove(device->networks, identifier);
 868
 869         return 0;
 870 }
 871
 872 void __connman_device_set_network(struct connman_device *device,
 873                                         struct connman_network *network)
 874 {
 875         const char *name;
 876
 877         if (!device)
 878                 return;
 879
 880         if (device->network == network)
 881                 return;
 882
 883         if (network) {
 884                 name = connman_network_get_string(network, "Name");
 885                 g_free(device->last_network);
 886                 device->last_network = g_strdup(name);
 887
 888                 device->network = network;
 889         } else {
 890                 g_free(device->last_network);
 891                 device->last_network = NULL;
 892
 893                 device->network = NULL;
 894         }
 895 }
 896
 897 static bool match_driver(struct connman_device *device,
 898                                         struct connman_device_driver *driver)
 899 {
 900         if (device->type == driver->type ||
 901                         driver->type == CONNMAN_DEVICE_TYPE_UNKNOWN)
 902                 return true;
 903
 904         return false;
 905 }
 906
 907 /**
 908  * connman_device_register:
 909  * @device: device structure
 910  *
 911  * Register device with the system
 912  */
 913 int connman_device_register(struct connman_device *device)
 914 {
 915         GSList *list;
 916
 917         DBG("device %p name %s", device, device->name);
 918
 919         if (device->driver)
 920                 return -EALREADY;
 921
 922         for (list = driver_list; list; list = list->next) {
 923                 struct connman_device_driver *driver = list->data;
 924
 925                 if (!match_driver(device, driver))
 926                         continue;
 927
 928                 DBG("driver %p name %s", driver, driver->name);
 929
 930                 if (driver->probe(device) == 0) {
 931                         device->driver = driver;
 932                         break;
 933                 }
 934         }
 935
 936         if (!device->driver)
 937                 return 0;
 938
 939         return __connman_technology_add_device(device);
 940 }
 941
 942 /**
 943  * connman_device_unregister:
 944  * @device: device structure
 945  *
 946  * Unregister device with the system
 947  */
 948 void connman_device_unregister(struct connman_device *device)
 949 {
 950         DBG("device %p name %s", device, device->name);
 951
 952         if (!device->driver)
 953                 return;
 954
 955         remove_device(device);
 956 }
 957
 958 /**
 959  * connman_device_get_data:
 960  * @device: device structure
 961  *
 962  * Get private device data pointer
 963  */
 964 void *connman_device_get_data(struct connman_device *device)
 965 {
 966         return device->driver_data;
 967 }
 968
 969 /**
 970  * connman_device_set_data:
 971  * @device: device structure
 972  * @data: data pointer
 973  *
 974  * Set private device data pointer
 975  */
 976 void connman_device_set_data(struct connman_device *device, void *data)
 977 {
 978         device->driver_data = data;
 979 }
 980
 981 struct connman_device *__connman_device_find_device(
 982                                 enum connman_service_type type)
 983 {
 984         GSList *list;
 985
 986         for (list = device_list; list; list = list->next) {
 987                 struct connman_device *device = list->data;
 988                 enum connman_service_type service_type =
 989                         __connman_device_get_service_type(device);
 990
 991                 if (service_type != type)
 992                         continue;
 993
 994                 return device;
 995         }
 996
 997         return NULL;
 998 }
 999
1000 struct connman_device *connman_device_find_by_index(int index)
1001 {
1002         GSList *list;
1003
1004         for (list = device_list; list; list = list->next) {
1005                 struct connman_device *device = list->data;
1006                 if (device->index == index)
1007                         return device;
1008         }
1009
1010         return NULL;
1011 }
1012
1013 /**
1014  * connman_device_set_regdom
1015  * @device: device structure
1016  * @alpha2: string representing regulatory domain
1017  *
1018  * Set regulatory domain on device basis
1019  */
1020 int connman_device_set_regdom(struct connman_device *device,
1021                                                 const char *alpha2)
1022 {
1023         if (!device->driver || !device->driver->set_regdom)
1024                 return -ENOTSUP;
1025
1026         if (!device->powered)
1027                 return -EINVAL;
1028
1029         return device->driver->set_regdom(device, alpha2);
1030 }
1031
1032 /**
1033  * connman_device_regdom_notify
1034  * @device: device structure
1035  * @alpha2: string representing regulatory domain
1036  *
1037  * Notify on setting regulatory domain on device basis
1038  */
1039 void connman_device_regdom_notify(struct connman_device *device,
1040                                         int result, const char *alpha2)
1041 {
1042         __connman_technology_notify_regdom_by_device(device, result, alpha2);
1043 }
1044
1045 #if defined TIZEN_EXT
1046 static int device_specific_scan(enum connman_service_type type,
1047                                 struct connman_device *device,
1048                                 int scan_type, GSList *specific_scan_list)
1049 {
1050         if (!device->driver || !device->driver->specific_scan)
1051                 return -EOPNOTSUPP;
1052
1053         if (!device->powered)
1054                 return -ENOLINK;
1055
1056         return device->driver->specific_scan(type, device, scan_type,
1057                         specific_scan_list, NULL);
1058 }
1059
1060 int __connman_device_request_specific_scan(enum connman_service_type type,
1061                                 int scan_type, GSList *specific_scan_list)
1062 {
1063         bool success = false;
1064         int last_err = -ENOSYS;
1065         GSList *list;
1066         int err;
1067
1068         switch (type) {
1069         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1070         case CONNMAN_SERVICE_TYPE_SYSTEM:
1071         case CONNMAN_SERVICE_TYPE_ETHERNET:
1072         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1073         case CONNMAN_SERVICE_TYPE_CELLULAR:
1074         case CONNMAN_SERVICE_TYPE_GPS:
1075         case CONNMAN_SERVICE_TYPE_VPN:
1076         case CONNMAN_SERVICE_TYPE_GADGET:
1077                 return -EOPNOTSUPP;
1078         case CONNMAN_SERVICE_TYPE_WIFI:
1079         case CONNMAN_SERVICE_TYPE_P2P:
1080                 break;
1081         }
1082
1083         for (list = device_list; list; list = list->next) {
1084                 struct connman_device *device = list->data;
1085                 enum connman_service_type service_type =
1086                         __connman_device_get_service_type(device);
1087
1088                 if (service_type != CONNMAN_SERVICE_TYPE_UNKNOWN) {
1089                         if (type == CONNMAN_SERVICE_TYPE_P2P) {
1090                                 if (service_type != CONNMAN_SERVICE_TYPE_WIFI)
1091                                         continue;
1092                         } else if (service_type != type)
1093                                 continue;
1094                 }
1095
1096                 err = device_specific_scan(type, device, scan_type, specific_scan_list);
1097                 if (err == 0 || err == -EINPROGRESS) {
1098                         success = true;
1099                 } else {
1100                         last_err = err;
1101                         DBG("device %p err %d", device, err);
1102                 }
1103         }
1104
1105         if (success)
1106                 return 0;
1107
1108         return last_err;
1109 }
1110 #endif
1111
1112 int __connman_device_request_scan(enum connman_service_type type)
1113 {
1114         bool success = false;
1115         int last_err = -ENOSYS;
1116         GSList *list;
1117         int err;
1118
1119         switch (type) {
1120         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1121         case CONNMAN_SERVICE_TYPE_SYSTEM:
1122         case CONNMAN_SERVICE_TYPE_ETHERNET:
1123         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1124         case CONNMAN_SERVICE_TYPE_CELLULAR:
1125         case CONNMAN_SERVICE_TYPE_GPS:
1126         case CONNMAN_SERVICE_TYPE_VPN:
1127         case CONNMAN_SERVICE_TYPE_GADGET:
1128                 return -EOPNOTSUPP;
1129         case CONNMAN_SERVICE_TYPE_WIFI:
1130         case CONNMAN_SERVICE_TYPE_P2P:
1131                 break;
1132         }
1133
1134         for (list = device_list; list; list = list->next) {
1135                 struct connman_device *device = list->data;
1136                 enum connman_service_type service_type =
1137                         __connman_device_get_service_type(device);
1138
1139                 if (service_type != CONNMAN_SERVICE_TYPE_UNKNOWN) {
1140                         if (type == CONNMAN_SERVICE_TYPE_P2P) {
1141                                 if (service_type != CONNMAN_SERVICE_TYPE_WIFI)
1142                                         continue;
1143                         } else if (service_type != type)
1144                                 continue;
1145                 }
1146
1147                 err = device_scan(type, device);
1148 #if defined TIZEN_EXT
1149                 /* When Scan is already in progress then return Error so that
1150                  * wifi-manager can block the scan-done signal to be sent to
1151                  * application and start requested scan after scan already in progress
1152                  * is completed then notify to application about the scan event */
1153                 if (err == 0 || err == -EINPROGRESS) {
1154 #else
1155                 if (err == 0 || err == -EALREADY || err == -EINPROGRESS) {
1156 #endif
1157                         success = true;
1158                 } else {
1159                         last_err = err;
1160                         DBG("device %p err %d", device, err);
1161                 }
1162         }
1163
1164         if (success)
1165                 return 0;
1166
1167         return last_err;
1168 }
1169
1170 int __connman_device_request_hidden_scan(struct connman_device *device,
1171                                 const char *ssid, unsigned int ssid_len,
1172                                 const char *identity, const char *passphrase,
1173                                 const char *security, void *user_data)
1174 {
1175         DBG("device %p", device);
1176
1177         if (!device || !device->driver ||
1178                         !device->driver->scan)
1179                 return -EINVAL;
1180
1181         return device->driver->scan(CONNMAN_SERVICE_TYPE_UNKNOWN,
1182                                         device, ssid, ssid_len, identity,
1183                                         passphrase, security, user_data);
1184 }
1185
1186 #if defined TIZEN_EXT
1187 char *index2ident(int index, const char *prefix)
1188 #else
1189 static char *index2ident(int index, const char *prefix)
1190 #endif
1191 {
1192         struct ifreq ifr;
1193         struct ether_addr eth;
1194         char *str;
1195         int sk, err, len;
1196
1197         if (index < 0)
1198                 return NULL;
1199
1200         sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
1201         if (sk < 0)
1202                 return NULL;
1203
1204         memset(&ifr, 0, sizeof(ifr));
1205         ifr.ifr_ifindex = index;
1206
1207         err = ioctl(sk, SIOCGIFNAME, &ifr);
1208
1209         if (err == 0)
1210                 err = ioctl(sk, SIOCGIFHWADDR, &ifr);
1211
1212         close(sk);
1213
1214         if (err < 0)
1215                 return NULL;
1216
1217         len = prefix ? strlen(prefix) + 18 : 18;
1218
1219         str = g_malloc(len);
1220         if (!str)
1221                 return NULL;
1222
1223         memcpy(&eth, &ifr.ifr_hwaddr.sa_data, sizeof(eth));
1224         snprintf(str, len, "%s%02x%02x%02x%02x%02x%02x",
1225                                                 prefix ? prefix : "",
1226                                                 eth.ether_addr_octet[0],
1227                                                 eth.ether_addr_octet[1],
1228                                                 eth.ether_addr_octet[2],
1229                                                 eth.ether_addr_octet[3],
1230                                                 eth.ether_addr_octet[4],
1231                                                 eth.ether_addr_octet[5]);
1232
1233         return str;
1234 }
1235
1236 #if defined TIZEN_EXT
1237 char *index2addr(int index)
1238 #else
1239 static char *index2addr(int index)
1240 #endif
1241 {
1242         struct ifreq ifr;
1243         struct ether_addr eth;
1244         char *str;
1245         int sk, err;
1246
1247         if (index < 0)
1248                 return NULL;
1249
1250         sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
1251         if (sk < 0)
1252                 return NULL;
1253
1254         memset(&ifr, 0, sizeof(ifr));
1255         ifr.ifr_ifindex = index;
1256
1257         err = ioctl(sk, SIOCGIFNAME, &ifr);
1258
1259         if (err == 0)
1260                 err = ioctl(sk, SIOCGIFHWADDR, &ifr);
1261
1262         close(sk);
1263
1264         if (err < 0)
1265                 return NULL;
1266
1267         str = g_malloc(18);
1268         if (!str)
1269                 return NULL;
1270
1271         memcpy(&eth, &ifr.ifr_hwaddr.sa_data, sizeof(eth));
1272         snprintf(str, 18, "%02X:%02X:%02X:%02X:%02X:%02X",
1273                                                 eth.ether_addr_octet[0],
1274                                                 eth.ether_addr_octet[1],
1275                                                 eth.ether_addr_octet[2],
1276                                                 eth.ether_addr_octet[3],
1277                                                 eth.ether_addr_octet[4],
1278                                                 eth.ether_addr_octet[5]);
1279
1280         return str;
1281 }
1282
1283 struct connman_device *connman_device_create_from_index(int index)
1284 {
1285         enum connman_device_type type;
1286         struct connman_device *device;
1287         char *devname, *ident = NULL;
1288         char *addr = NULL, *name = NULL;
1289
1290         if (index < 0)
1291                 return NULL;
1292
1293         devname = connman_inet_ifname(index);
1294         if (!devname)
1295                 return NULL;
1296
1297         if (__connman_device_isfiltered(devname)) {
1298                 connman_info("Ignoring interface %s (filtered)", devname);
1299                 g_free(devname);
1300                 return NULL;
1301         }
1302
1303         type = __connman_rtnl_get_device_type(index);
1304
1305         switch (type) {
1306         case CONNMAN_DEVICE_TYPE_UNKNOWN:
1307                 connman_info("Ignoring interface %s (type unknown)", devname);
1308                 g_free(devname);
1309                 return NULL;
1310         case CONNMAN_DEVICE_TYPE_ETHERNET:
1311         case CONNMAN_DEVICE_TYPE_GADGET:
1312         case CONNMAN_DEVICE_TYPE_WIFI:
1313                 name = index2ident(index, "");
1314                 addr = index2addr(index);
1315                 break;
1316         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
1317         case CONNMAN_DEVICE_TYPE_CELLULAR:
1318         case CONNMAN_DEVICE_TYPE_GPS:
1319         case CONNMAN_DEVICE_TYPE_VENDOR:
1320                 name = g_strdup(devname);
1321                 break;
1322         }
1323
1324         device = connman_device_create(name, type);
1325         if (!device)
1326                 goto done;
1327
1328         switch (type) {
1329         case CONNMAN_DEVICE_TYPE_UNKNOWN:
1330         case CONNMAN_DEVICE_TYPE_VENDOR:
1331         case CONNMAN_DEVICE_TYPE_GPS:
1332                 break;
1333         case CONNMAN_DEVICE_TYPE_ETHERNET:
1334         case CONNMAN_DEVICE_TYPE_GADGET:
1335                 ident = index2ident(index, NULL);
1336                 break;
1337         case CONNMAN_DEVICE_TYPE_WIFI:
1338                 ident = index2ident(index, NULL);
1339                 break;
1340         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
1341                 break;
1342         case CONNMAN_DEVICE_TYPE_CELLULAR:
1343                 ident = index2ident(index, NULL);
1344                 break;
1345         }
1346
1347         connman_device_set_index(device, index);
1348         connman_device_set_interface(device, devname);
1349
1350         if (ident) {
1351                 connman_device_set_ident(device, ident);
1352                 g_free(ident);
1353         }
1354
1355         connman_device_set_string(device, "Address", addr);
1356
1357 done:
1358         g_free(devname);
1359         g_free(name);
1360         g_free(addr);
1361
1362         return device;
1363 }
1364
1365 bool __connman_device_isfiltered(const char *devname)
1366 {
1367         char **pattern;
1368         char **blacklisted_interfaces;
1369         bool match;
1370
1371         if (!device_filter)
1372                 goto nodevice;
1373
1374         for (pattern = device_filter, match = false; *pattern; pattern++) {
1375                 if (g_pattern_match_simple(*pattern, devname)) {
1376                         match = true;
1377                         break;
1378                 }
1379         }
1380
1381         if (!match) {
1382                 DBG("ignoring device %s (match)", devname);
1383                 return true;
1384         }
1385
1386 nodevice:
1387         if (g_pattern_match_simple("dummy*", devname)) {
1388                 DBG("ignoring dummy networking devices");
1389                 return true;
1390         }
1391
1392         if (!nodevice_filter)
1393                 goto list;
1394
1395         for (pattern = nodevice_filter; *pattern; pattern++) {
1396                 if (g_pattern_match_simple(*pattern, devname)) {
1397                         DBG("ignoring device %s (no match)", devname);
1398                         return true;
1399                 }
1400         }
1401
1402 list:
1403         if (__connman_inet_isrootnfs_device(devname)) {
1404                 DBG("ignoring device %s (rootnfs)", devname);
1405                 return true;
1406         }
1407
1408         blacklisted_interfaces =
1409                 connman_setting_get_string_list("NetworkInterfaceBlacklist");
1410         if (!blacklisted_interfaces)
1411                 return false;
1412
1413         for (pattern = blacklisted_interfaces; *pattern; pattern++) {
1414                 if (g_str_has_prefix(devname, *pattern)) {
1415                         DBG("ignoring device %s (blacklist)", devname);
1416                         return true;
1417                 }
1418         }
1419
1420         return false;
1421 }
1422
1423 static void cleanup_devices(void)
1424 {
1425         /*
1426          * Check what interfaces are currently up and if connman is
1427          * suppose to handle the interface, then cleanup the mess
1428          * related to that interface. There might be weird routes etc
1429          * that are related to that interface and that might confuse
1430          * connmand. So in this case we just turn the interface down
1431          * so that kernel removes routes/addresses automatically and
1432          * then proceed the startup.
1433          *
1434          * Note that this cleanup must be done before rtnl/detect code
1435          * has activated interface watches.
1436          */
1437
1438         char **interfaces;
1439         int i;
1440
1441         interfaces = __connman_inet_get_running_interfaces();
1442
1443         if (!interfaces)
1444                 return;
1445
1446         for (i = 0; interfaces[i]; i++) {
1447                 bool filtered;
1448                 int index;
1449                 struct sockaddr_in sin_addr, sin_mask;
1450
1451                 filtered = __connman_device_isfiltered(interfaces[i]);
1452                 if (filtered)
1453                         continue;
1454
1455                 index = connman_inet_ifindex(interfaces[i]);
1456                 if (index < 0)
1457                         continue;
1458
1459                 if (!__connman_inet_get_address_netmask(index, &sin_addr,
1460                                                         &sin_mask)) {
1461                         char *address = g_strdup(inet_ntoa(sin_addr.sin_addr));
1462                         char *netmask = g_strdup(inet_ntoa(sin_mask.sin_addr));
1463
1464                         if (__connman_config_address_provisioned(address,
1465                                                                 netmask)) {
1466                                 DBG("Skip %s which is already provisioned "
1467                                         "with %s/%s", interfaces[i], address,
1468                                         netmask);
1469                                 g_free(address);
1470                                 g_free(netmask);
1471                                 continue;
1472                         }
1473
1474                         g_free(address);
1475                         g_free(netmask);
1476                 }
1477
1478                 DBG("cleaning up %s index %d", interfaces[i], index);
1479
1480 #if defined TIZEN_EXT
1481                 if (strcmp(interfaces[i], "wlan0") != 0)
1482 #endif
1483                 connman_inet_ifdown(index);
1484
1485                 /*
1486                  * ConnMan will turn the interface UP automatically so
1487                  * no need to do it here.
1488                  */
1489         }
1490
1491         g_strfreev(interfaces);
1492 }
1493
1494 int __connman_device_init(const char *device, const char *nodevice)
1495 {
1496         DBG("");
1497
1498         if (device)
1499                 device_filter = g_strsplit(device, ",", -1);
1500
1501         if (nodevice)
1502                 nodevice_filter = g_strsplit(nodevice, ",", -1);
1503
1504         cleanup_devices();
1505
1506         return 0;
1507 }
1508
1509 void __connman_device_cleanup(void)
1510 {
1511         DBG("");
1512
1513         g_strfreev(nodevice_filter);
1514         g_strfreev(device_filter);
1515 }