vcs.maemo.org Git - connman/blob - src/network.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2009  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 <string.h>
  27
  28 #include <gdbus.h>
  29
  30 #include "connman.h"
  31
  32 struct connman_network {
  33         struct connman_element element;
  34         enum connman_network_type type;
  35         enum connman_network_protocol protocol;
  36         connman_bool_t connected;
  37         connman_uint8_t strength;
  38         char *identifier;
  39         char *name;
  40         char *node;
  41
  42         struct connman_network_driver *driver;
  43         void *driver_data;
  44
  45         connman_bool_t registered;
  46
  47         struct connman_device *device;
  48
  49         struct {
  50                 void *ssid;
  51                 int ssid_len;
  52                 char *mode;
  53                 char *security;
  54                 char *passphrase;
  55         } wifi;
  56 };
  57
  58 static DBusMessage *get_properties(DBusConnection *conn,
  59                                         DBusMessage *msg, void *data)
  60 {
  61         struct connman_network *network = data;
  62         DBusMessage *reply;
  63         DBusMessageIter array, dict;
  64
  65         DBG("conn %p", conn);
  66
  67         reply = dbus_message_new_method_return(msg);
  68         if (reply == NULL)
  69                 return NULL;
  70
  71         dbus_message_iter_init_append(reply, &array);
  72
  73         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
  74                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
  75                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
  76                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
  77
  78         if (network->device) {
  79                 const char *path = connman_device_get_path(network->device);
  80                 if (path != NULL)
  81                         connman_dbus_dict_append_variant(&dict, "Device",
  82                                                 DBUS_TYPE_OBJECT_PATH, &path);
  83         }
  84
  85         if (network->name != NULL)
  86                 connman_dbus_dict_append_variant(&dict, "Name",
  87                                         DBUS_TYPE_STRING, &network->name);
  88
  89         connman_dbus_dict_append_variant(&dict, "Connected",
  90                                 DBUS_TYPE_BOOLEAN, &network->connected);
  91
  92         if (network->strength > 0)
  93                 connman_dbus_dict_append_variant(&dict, "Strength",
  94                                         DBUS_TYPE_BYTE, &network->strength);
  95
  96         if (network->wifi.ssid != NULL && network->wifi.ssid_len > 0)
  97                 connman_dbus_dict_append_array(&dict, "WiFi.SSID",
  98                                 DBUS_TYPE_BYTE, &network->wifi.ssid,
  99                                                 network->wifi.ssid_len);
 100
 101         if (network->wifi.mode != NULL)
 102                 connman_dbus_dict_append_variant(&dict, "WiFi.Mode",
 103                                 DBUS_TYPE_STRING, &network->wifi.mode);
 104
 105         if (network->wifi.security != NULL)
 106                 connman_dbus_dict_append_variant(&dict, "WiFi.Security",
 107                                 DBUS_TYPE_STRING, &network->wifi.security);
 108
 109         if (network->wifi.passphrase != NULL)
 110                 connman_dbus_dict_append_variant(&dict, "WiFi.Passphrase",
 111                                 DBUS_TYPE_STRING, &network->wifi.passphrase);
 112
 113         dbus_message_iter_close_container(&array, &dict);
 114
 115         return reply;
 116 }
 117
 118 static DBusMessage *set_property(DBusConnection *conn,
 119                                         DBusMessage *msg, void *data)
 120 {
 121         DBusMessageIter iter, value;
 122         const char *name;
 123
 124         DBG("conn %p", conn);
 125
 126         if (dbus_message_iter_init(msg, &iter) == FALSE)
 127                 return __connman_error_invalid_arguments(msg);
 128
 129         dbus_message_iter_get_basic(&iter, &name);
 130         dbus_message_iter_next(&iter);
 131         dbus_message_iter_recurse(&iter, &value);
 132
 133         if (__connman_security_check_privileges(msg) < 0)
 134                 return __connman_error_permission_denied(msg);
 135
 136         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 137 }
 138
 139 static DBusMessage *do_connect(DBusConnection *conn,
 140                                         DBusMessage *msg, void *data)
 141 {
 142         struct connman_network *network = data;
 143         int err;
 144
 145         DBG("conn %p", conn);
 146
 147         if (network->driver && network->driver->connect) {
 148                 err = network->driver->connect(network);
 149                 if (err < 0 && err != -EINPROGRESS)
 150                         return __connman_error_failed(msg);
 151         }
 152
 153         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 154 }
 155
 156 static DBusMessage *do_disconnect(DBusConnection *conn,
 157                                         DBusMessage *msg, void *data)
 158 {
 159         struct connman_network *network = data;
 160         int err;
 161
 162         DBG("conn %p", conn);
 163
 164         if (network->driver && network->driver->disconnect) {
 165                 err = network->driver->disconnect(network);
 166                 if (err < 0 && err != -EINPROGRESS)
 167                         return __connman_error_failed(msg);
 168         }
 169
 170         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 171 }
 172
 173 static GDBusMethodTable network_methods[] = {
 174         { "GetProperties", "",   "a{sv}", get_properties },
 175         { "SetProperty",   "sv", "",      set_property   },
 176         { "Connect",       "",   "",      do_connect     },
 177         { "Disconnect",    "",   "",      do_disconnect  },
 178         { },
 179 };
 180
 181 static GDBusSignalTable network_signals[] = {
 182         { "PropertyChanged", "sv" },
 183         { },
 184 };
 185
 186 static DBusConnection *connection;
 187
 188 static void emit_networks_signal(void)
 189 {
 190 }
 191
 192 static int register_interface(struct connman_element *element)
 193 {
 194         struct connman_network *network = element->network;
 195
 196         DBG("element %p name %s", element, element->name);
 197
 198         if (g_dbus_register_interface(connection, element->path,
 199                                         CONNMAN_NETWORK_INTERFACE,
 200                                         network_methods, network_signals,
 201                                         NULL, network, NULL) == FALSE) {
 202                 connman_error("Failed to register %s network", element->path);
 203                 return -EIO;
 204         }
 205
 206         network->registered = TRUE;
 207
 208         emit_networks_signal();
 209
 210         return 0;
 211 }
 212
 213 static void unregister_interface(struct connman_element *element)
 214 {
 215         struct connman_network * network = element->network;
 216
 217         DBG("element %p name %s", element, element->name);
 218
 219         network->registered = FALSE;
 220
 221         emit_networks_signal();
 222
 223         g_dbus_unregister_interface(connection, element->path,
 224                                                 CONNMAN_NETWORK_INTERFACE);
 225 }
 226
 227 connman_bool_t __connman_network_has_driver(struct connman_network *network)
 228 {
 229         if (network == NULL || network->driver == NULL)
 230                 return FALSE;
 231
 232         return network->registered;
 233 }
 234
 235 static GSList *driver_list = NULL;
 236
 237 static gint compare_priority(gconstpointer a, gconstpointer b)
 238 {
 239         const struct connman_network_driver *driver1 = a;
 240         const struct connman_network_driver *driver2 = b;
 241
 242         return driver2->priority - driver1->priority;
 243 }
 244
 245 /**
 246  * connman_network_driver_register:
 247  * @driver: network driver definition
 248  *
 249  * Register a new network driver
 250  *
 251  * Returns: %0 on success
 252  */
 253 int connman_network_driver_register(struct connman_network_driver *driver)
 254 {
 255         DBG("driver %p name %s", driver, driver->name);
 256
 257         driver_list = g_slist_insert_sorted(driver_list, driver,
 258                                                         compare_priority);
 259
 260         return 0;
 261 }
 262
 263 /**
 264  * connman_network_driver_unregister:
 265  * @driver: network driver definition
 266  *
 267  * Remove a previously registered network driver
 268  */
 269 void connman_network_driver_unregister(struct connman_network_driver *driver)
 270 {
 271         DBG("driver %p name %s", driver, driver->name);
 272
 273         driver_list = g_slist_remove(driver_list, driver);
 274 }
 275
 276 static void network_destruct(struct connman_element *element)
 277 {
 278         struct connman_network *network = element->network;
 279
 280         DBG("element %p name %s", element, element->name);
 281
 282         g_free(network->wifi.ssid);
 283         g_free(network->wifi.mode);
 284         g_free(network->wifi.security);
 285         g_free(network->wifi.passphrase);
 286
 287         g_free(network->node);
 288         g_free(network->name);
 289         g_free(network->identifier);
 290 }
 291
 292 /**
 293  * connman_network_create:
 294  * @identifier: network identifier (for example an unqiue name)
 295  *
 296  * Allocate a new network and assign the #identifier to it.
 297  *
 298  * Returns: a newly-allocated #connman_network structure
 299  */
 300 struct connman_network *connman_network_create(const char *identifier,
 301                                                 enum connman_network_type type)
 302 {
 303         struct connman_network *network;
 304
 305         DBG("identifier %s type %d", identifier, type);
 306
 307         network = g_try_new0(struct connman_network, 1);
 308         if (network == NULL)
 309                 return NULL;
 310
 311         DBG("network %p", network);
 312
 313         network->element.refcount = 1;
 314
 315         network->element.name = g_strdup(identifier);
 316         network->element.type = CONNMAN_ELEMENT_TYPE_NETWORK;
 317         network->element.index = -1;
 318
 319         switch (type) {
 320         case CONNMAN_NETWORK_TYPE_UNKNOWN:
 321         case CONNMAN_NETWORK_TYPE_VENDOR:
 322                 network->element.subtype = CONNMAN_ELEMENT_SUBTYPE_UNKNOWN;
 323                 break;
 324         case CONNMAN_NETWORK_TYPE_WIFI:
 325                 network->element.subtype = CONNMAN_ELEMENT_SUBTYPE_WIFI;
 326                 break;
 327         case CONNMAN_NETWORK_TYPE_BLUETOOTH_PAN:
 328         case CONNMAN_NETWORK_TYPE_BLUETOOTH_DUN:
 329                 network->element.subtype = CONNMAN_ELEMENT_SUBTYPE_BLUETOOTH;
 330                 break;
 331         case CONNMAN_NETWORK_TYPE_HSO:
 332                 network->element.subtype = CONNMAN_ELEMENT_SUBTYPE_CELLULAR;
 333                 break;
 334         }
 335
 336         network->element.network = network;
 337         network->element.destruct = network_destruct;
 338
 339         network->type = type;
 340         network->identifier = g_strdup(identifier);
 341
 342         return network;
 343 }
 344
 345 /**
 346  * connman_network_ref:
 347  * @network: network structure
 348  *
 349  * Increase reference counter of  network
 350  */
 351 struct connman_network *connman_network_ref(struct connman_network *network)
 352 {
 353         if (connman_element_ref(&network->element) == NULL)
 354                 return NULL;
 355
 356         return network;
 357 }
 358
 359 /**
 360  * connman_network_unref:
 361  * @network: network structure
 362  *
 363  * Decrease reference counter of network
 364  */
 365 void connman_network_unref(struct connman_network *network)
 366 {
 367         connman_element_unref(&network->element);
 368 }
 369
 370 /**
 371  * connman_network_get_identifier:
 372  * @network: network structure
 373  *
 374  * Get identifier of network
 375  */
 376 const char *connman_network_get_identifier(struct connman_network *network)
 377 {
 378         return network->identifier;
 379 }
 380
 381 /**
 382  * connman_network_get_path:
 383  * @network: network structure
 384  *
 385  * Get path name of network
 386  */
 387 const char *connman_network_get_path(struct connman_network *network)
 388 {
 389         return network->element.path;
 390 }
 391
 392 /**
 393  * connman_network_set_index:
 394  * @network: network structure
 395  * @index: index number
 396  *
 397  * Set index number of network
 398  */
 399 void connman_network_set_index(struct connman_network *network, int index)
 400 {
 401         network->element.index = index;
 402 }
 403
 404 /**
 405  * connman_network_get_index:
 406  * @network: network structure
 407  *
 408  * Get index number of network
 409  */
 410 int connman_network_get_index(struct connman_network *network)
 411 {
 412         return network->element.index;
 413 }
 414
 415 /**
 416  * connman_network_set_protocol:
 417  * @network: network structure
 418  * @protocol: network protocol
 419  *
 420  * Change protocol of network
 421  */
 422 void connman_network_set_protocol(struct connman_network *network,
 423                                         enum connman_network_protocol protocol)
 424 {
 425         network->protocol = protocol;
 426 }
 427
 428 /**
 429  * connman_network_set_connected:
 430  * @network: network structure
 431  * @connected: connected state
 432  *
 433  * Change connected state of network
 434  */
 435 int connman_network_set_connected(struct connman_network *network,
 436                                                 connman_bool_t connected)
 437 {
 438         DBG("network %p connected %d", network, connected);
 439
 440         if (network->connected == connected)
 441                 return -EALREADY;
 442
 443         network->connected = connected;
 444
 445         if (connected == TRUE) {
 446                 struct connman_element *element;
 447                 enum connman_element_type type = CONNMAN_ELEMENT_TYPE_UNKNOWN;
 448
 449                 switch (network->protocol) {
 450                 case CONNMAN_NETWORK_PROTOCOL_UNKNOWN:
 451                         return 0;
 452                 case CONNMAN_NETWORK_PROTOCOL_IP:
 453                         type = CONNMAN_ELEMENT_TYPE_DHCP;
 454                         break;
 455                 case CONNMAN_NETWORK_PROTOCOL_PPP:
 456                         type = CONNMAN_ELEMENT_TYPE_PPP;
 457                         break;
 458                 }
 459
 460                 element = connman_element_create(NULL);
 461                 if (element != NULL) {
 462                         element->type    = type;
 463                         element->subtype = network->element.subtype;
 464                         element->index   = network->element.index;
 465
 466                         if (connman_element_register(element,
 467                                                         &network->element) < 0)
 468                                 connman_element_unref(element);
 469                 }
 470         } else
 471                 connman_element_unregister_children(&network->element);
 472
 473         return 0;
 474 }
 475
 476 /**
 477  * connman_network_set_string:
 478  * @network: network structure
 479  * @key: unique identifier
 480  * @value: string value
 481  *
 482  * Set string value for specific key
 483  */
 484 int connman_network_set_string(struct connman_network *network,
 485                                         const char *key, const char *value)
 486 {
 487         DBG("network %p key %s value %s", network, key, value);
 488
 489         if (g_str_equal(key, "Name") == TRUE) {
 490                 g_free(network->name);
 491                 network->name = g_strdup(value);
 492         } else if (g_str_equal(key, "Node") == TRUE) {
 493                 g_free(network->node);
 494                 network->node = g_strdup(value);
 495         } else if (g_str_equal(key, "WiFi.Mode") == TRUE) {
 496                 g_free(network->wifi.mode);
 497                 network->wifi.mode = g_strdup(value);
 498         } else if (g_str_equal(key, "WiFi.Security") == TRUE) {
 499                 g_free(network->wifi.security);
 500                 network->wifi.security = g_strdup(value);
 501         }
 502
 503         return 0;
 504 }
 505
 506 /**
 507  * connman_network_get_string:
 508  * @network: network structure
 509  * @key: unique identifier
 510  *
 511  * Get string value for specific key
 512  */
 513 const char *connman_network_get_string(struct connman_network *network,
 514                                                         const char *key)
 515 {
 516         DBG("network %p key %s", network);
 517
 518         if (g_str_equal(key, "Name") == TRUE)
 519                 return network->name;
 520         else if (g_str_equal(key, "Node") == TRUE)
 521                 return network->node;
 522         else if (g_str_equal(key, "WiFi.Mode") == TRUE)
 523                 return network->wifi.mode;
 524         else if (g_str_equal(key, "WiFi.Security") == TRUE)
 525                 return network->wifi.security;
 526
 527         return NULL;
 528 }
 529
 530 /**
 531  * connman_network_set_uint8:
 532  * @network: network structure
 533  * @key: unique identifier
 534  * @value: integer value
 535  *
 536  * Set integer value for specific key
 537  */
 538 int connman_network_set_uint8(struct connman_network *network,
 539                                         const char *key, connman_uint8_t value)
 540 {
 541         DBG("network %p key %s value %d", network, key, value);
 542
 543         if (g_str_equal(key, "Strength") == TRUE)
 544                 network->strength = value;
 545
 546         return 0;
 547 }
 548
 549 /**
 550  * connman_network_set_blob:
 551  * @network: network structure
 552  * @key: unique identifier
 553  * @data: blob data
 554  * @size: blob size
 555  *
 556  * Set binary blob value for specific key
 557  */
 558 int connman_network_set_blob(struct connman_network *network,
 559                         const char *key, const void *data, unsigned int size)
 560 {
 561         DBG("network %p key %s size %d", network, key, size);
 562
 563         if (g_str_equal(key, "WiFi.SSID") == TRUE) {
 564                 g_free(network->wifi.ssid);
 565                 network->wifi.ssid = g_try_malloc(size);
 566                 if (network->wifi.ssid != NULL) {
 567                         memcpy(network->wifi.ssid, data, size);
 568                         network->wifi.ssid_len = size;
 569                 } else
 570                         network->wifi.ssid_len = 0;
 571         }
 572
 573         return 0;
 574 }
 575
 576 void __connman_network_set_device(struct connman_network *network,
 577                                         struct connman_device *device)
 578 {
 579         network->device = device;
 580 }
 581
 582 /**
 583  * connman_network_get_device:
 584  * @network: network structure
 585  *
 586  * Get parent device of network
 587  */
 588 struct connman_device *connman_network_get_device(struct connman_network *network)
 589 {
 590         return network->device;
 591 }
 592
 593 /**
 594  * connman_network_get_data:
 595  * @network: network structure
 596  *
 597  * Get private network data pointer
 598  */
 599 void *connman_network_get_data(struct connman_network *network)
 600 {
 601         return network->driver_data;
 602 }
 603
 604 /**
 605  * connman_network_set_data:
 606  * @network: network structure
 607  * @data: data pointer
 608  *
 609  * Set private network data pointer
 610  */
 611 void connman_network_set_data(struct connman_network *network, void *data)
 612 {
 613         network->driver_data = data;
 614 }
 615
 616 static gboolean match_driver(struct connman_network *network,
 617                                         struct connman_network_driver *driver)
 618 {
 619         if (network->type == driver->type ||
 620                         driver->type == CONNMAN_NETWORK_TYPE_UNKNOWN)
 621                 return TRUE;
 622
 623         return FALSE;
 624 }
 625
 626 static int network_probe(struct connman_element *element)
 627 {
 628         struct connman_network *network = element->network;
 629         GSList *list;
 630         int err;
 631
 632         DBG("element %p name %s", element, element->name);
 633
 634         if (network == NULL)
 635                 return -ENODEV;
 636
 637         for (list = driver_list; list; list = list->next) {
 638                 struct connman_network_driver *driver = list->data;
 639
 640                 if (match_driver(network, driver) == FALSE)
 641                         continue;
 642
 643                 DBG("driver %p name %s", driver, driver->name);
 644
 645                 if (driver->probe(network) == 0) {
 646                         network->driver = driver;
 647                         break;
 648                 }
 649         }
 650
 651         if (network->driver == NULL)
 652                 return -ENODEV;
 653
 654         err = register_interface(element);
 655         if (err < 0) {
 656                 if (network->driver->remove)
 657                         network->driver->remove(network);
 658                 return err;
 659         }
 660
 661         return 0;
 662 }
 663
 664 static void network_remove(struct connman_element *element)
 665 {
 666         struct connman_network *network = element->network;
 667
 668         DBG("element %p name %s", element, element->name);
 669
 670         if (network == NULL)
 671                 return;
 672
 673         if (network->driver == NULL)
 674                 return;
 675
 676         unregister_interface(element);
 677
 678         if (network->driver->remove)
 679                 network->driver->remove(network);
 680 }
 681
 682 static struct connman_driver network_driver = {
 683         .name           = "network",
 684         .type           = CONNMAN_ELEMENT_TYPE_NETWORK,
 685         .priority       = CONNMAN_DRIVER_PRIORITY_LOW,
 686         .probe          = network_probe,
 687         .remove         = network_remove,
 688 };
 689
 690 static int network_load(struct connman_network *network)
 691 {
 692         DBG("network %p", network);
 693
 694         return 0;
 695 }
 696
 697 static int network_save(struct connman_network *network)
 698 {
 699         DBG("network %p", network);
 700
 701         return 0;
 702 }
 703
 704 static struct connman_storage network_storage = {
 705         .name           = "network",
 706         .priority       = CONNMAN_STORAGE_PRIORITY_LOW,
 707         .network_load   = network_load,
 708         .network_save   = network_save,
 709 };
 710
 711 int __connman_network_init(void)
 712 {
 713         DBG("");
 714
 715         connection = connman_dbus_get_connection();
 716
 717         if (connman_storage_register(&network_storage) < 0)
 718                 connman_error("Failed to register network storage");
 719
 720         return connman_driver_register(&network_driver);
 721 }
 722
 723 void __connman_network_cleanup(void)
 724 {
 725         DBG("");
 726
 727         connman_driver_unregister(&network_driver);
 728
 729         connman_storage_unregister(&network_storage);
 730
 731         dbus_connection_unref(connection);
 732 }