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