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