vcs.maemo.org Git - connman/blob - src/element.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 <errno.h>
  27 #include <stdarg.h>
  28 #include <string.h>
  29
  30 #include <glib.h>
  31 #include <gdbus.h>
  32
  33 #include "connman.h"
  34
  35 static DBusConnection *connection;
  36
  37 static GNode *element_root = NULL;
  38 static GSList *driver_list = NULL;
  39 static gchar *device_filter = NULL;
  40
  41 static gboolean started = FALSE;
  42
  43 static const char *type2string(enum connman_element_type type)
  44 {
  45         switch (type) {
  46         case CONNMAN_ELEMENT_TYPE_UNKNOWN:
  47                 return "unknown";
  48         case CONNMAN_ELEMENT_TYPE_ROOT:
  49                 return "root";
  50         case CONNMAN_ELEMENT_TYPE_PROFILE:
  51                 return "profile";
  52         case CONNMAN_ELEMENT_TYPE_DEVICE:
  53                 return "device";
  54         case CONNMAN_ELEMENT_TYPE_NETWORK:
  55                 return "network";
  56         case CONNMAN_ELEMENT_TYPE_SERVICE:
  57                 return "service";
  58         case CONNMAN_ELEMENT_TYPE_PPP:
  59                 return "ppp";
  60         case CONNMAN_ELEMENT_TYPE_IPV4:
  61                 return "ipv4";
  62         case CONNMAN_ELEMENT_TYPE_IPV6:
  63                 return "ipv6";
  64         case CONNMAN_ELEMENT_TYPE_DHCP:
  65                 return "dhcp";
  66         case CONNMAN_ELEMENT_TYPE_BOOTP:
  67                 return "bootp";
  68         case CONNMAN_ELEMENT_TYPE_ZEROCONF:
  69                 return "zeroconf";
  70         case CONNMAN_ELEMENT_TYPE_CONNECTION:
  71                 return "connection";
  72         case CONNMAN_ELEMENT_TYPE_VENDOR:
  73                 return "vendor";
  74         }
  75
  76         return NULL;
  77 }
  78
  79 const char *__connman_ipv4_method2string(enum connman_ipv4_method method)
  80 {
  81         switch (method) {
  82         case CONNMAN_IPV4_METHOD_UNKNOWN:
  83                 return "unknown";
  84         case CONNMAN_IPV4_METHOD_OFF:
  85                 return "off";
  86         case CONNMAN_IPV4_METHOD_STATIC:
  87                 return "static";
  88         case CONNMAN_IPV4_METHOD_DHCP:
  89                 return "dhcp";
  90         }
  91
  92         return "unknown";
  93 }
  94
  95 enum connman_ipv4_method __connman_ipv4_string2method(const char *method)
  96 {
  97         if (strcasecmp(method, "off") == 0)
  98                 return CONNMAN_IPV4_METHOD_OFF;
  99         else if (strcasecmp(method, "static") == 0)
 100                 return CONNMAN_IPV4_METHOD_STATIC;
 101         else if (strcasecmp(method, "dhcp") == 0)
 102                 return CONNMAN_IPV4_METHOD_DHCP;
 103         else
 104                 return CONNMAN_IPV4_METHOD_UNKNOWN;
 105 }
 106
 107 static void emit_element_signal(DBusConnection *conn, const char *member,
 108                                         struct connman_element *element)
 109 {
 110         DBusMessage *signal;
 111
 112         if (__connman_debug_enabled() == FALSE)
 113                 return;
 114
 115         DBG("conn %p member %s", conn, member);
 116
 117         if (element == NULL)
 118                 return;
 119
 120         signal = dbus_message_new_signal(element->path,
 121                                         CONNMAN_DEBUG_INTERFACE, member);
 122         if (signal == NULL)
 123                 return;
 124
 125         g_dbus_send_message(conn, signal);
 126 }
 127
 128 struct foreach_data {
 129         enum connman_element_type type;
 130         element_cb_t callback;
 131         gpointer user_data;
 132 };
 133
 134 static gboolean foreach_callback(GNode *node, gpointer user_data)
 135 {
 136         struct connman_element *element = node->data;
 137         struct foreach_data *data = user_data;
 138
 139         DBG("element %p name %s", element, element->name);
 140
 141         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 142                 return FALSE;
 143
 144         if (data->type != CONNMAN_ELEMENT_TYPE_UNKNOWN &&
 145                                         data->type != element->type)
 146                 return FALSE;
 147
 148         if (data->callback)
 149                 data->callback(element, data->user_data);
 150
 151         return FALSE;
 152 }
 153
 154 void __connman_element_foreach(struct connman_element *element,
 155                                 enum connman_element_type type,
 156                                 element_cb_t callback, gpointer user_data)
 157 {
 158         struct foreach_data data = { type, callback, user_data };
 159         GNode *node;
 160
 161         DBG("");
 162
 163         if (element != NULL) {
 164                 node = g_node_find(element_root, G_PRE_ORDER,
 165                                                 G_TRAVERSE_ALL, element);
 166                 if (node == NULL)
 167                         return;
 168         } else
 169                 node = element_root;
 170
 171         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 172                                                 foreach_callback, &data);
 173 }
 174
 175 struct append_filter {
 176         enum connman_element_type type;
 177         DBusMessageIter *iter;
 178 };
 179
 180 static gboolean append_path(GNode *node, gpointer user_data)
 181 {
 182         struct connman_element *element = node->data;
 183         struct append_filter *filter = user_data;
 184
 185         DBG("element %p name %s", element, element->name);
 186
 187         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 188                 return FALSE;
 189
 190         if (filter->type != CONNMAN_ELEMENT_TYPE_UNKNOWN &&
 191                                         filter->type != element->type)
 192                 return FALSE;
 193
 194         if (filter->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
 195                         __connman_device_has_driver(element->device) == FALSE)
 196                 return FALSE;
 197
 198         if (filter->type == CONNMAN_ELEMENT_TYPE_NETWORK &&
 199                         __connman_network_has_driver(element->network) == FALSE)
 200                 return FALSE;
 201
 202         dbus_message_iter_append_basic(filter->iter,
 203                                 DBUS_TYPE_OBJECT_PATH, &element->path);
 204
 205         return FALSE;
 206 }
 207
 208 void __connman_element_list(struct connman_element *element,
 209                                         enum connman_element_type type,
 210                                                         DBusMessageIter *iter)
 211 {
 212         struct append_filter filter = { type, iter };
 213         GNode *node;
 214
 215         DBG("");
 216
 217         if (element != NULL) {
 218                 node = g_node_find(element_root, G_PRE_ORDER,
 219                                                 G_TRAVERSE_ALL, element);
 220                 if (node == NULL)
 221                         return;
 222         } else
 223                 node = element_root;
 224
 225         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 226                                                 append_path, &filter);
 227 }
 228
 229 struct count_data {
 230         enum connman_element_type type;
 231         int count;
 232 };
 233
 234 static gboolean count_element(GNode *node, gpointer user_data)
 235 {
 236         struct connman_element *element = node->data;
 237         struct count_data *data = user_data;
 238
 239         DBG("element %p name %s", element, element->name);
 240
 241         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 242                 return FALSE;
 243
 244         if (data->type != CONNMAN_ELEMENT_TYPE_UNKNOWN &&
 245                                         data->type != element->type)
 246                 return FALSE;
 247
 248         data->count++;
 249
 250         return FALSE;
 251 }
 252
 253 int __connman_element_count(struct connman_element *element,
 254                                         enum connman_element_type type)
 255 {
 256         struct count_data data = { type, 0 };
 257         GNode *node;
 258
 259         DBG("");
 260
 261         if (element != NULL) {
 262                 node = g_node_find(element_root, G_PRE_ORDER,
 263                                                 G_TRAVERSE_ALL, element);
 264                 if (node == NULL)
 265                         return 0;
 266         } else
 267                 node = element_root;
 268
 269         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 270                                                 count_element, &data);
 271
 272         return data.count;
 273 }
 274
 275 const char *__connman_element_get_device(struct connman_element *element)
 276 {
 277         if (element->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
 278                                                 element->device != NULL)
 279                 return element->path;
 280
 281         if (element->parent == NULL)
 282                 return NULL;
 283
 284         return __connman_element_get_device(element->parent);
 285 }
 286
 287 const char *__connman_element_get_network(struct connman_element *element)
 288 {
 289         if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK &&
 290                                                 element->network != NULL)
 291                 return element->path;
 292
 293         if (element->parent == NULL)
 294                 return NULL;
 295
 296         return __connman_element_get_network(element->parent);
 297 }
 298
 299 static gint compare_priority(gconstpointer a, gconstpointer b)
 300 {
 301         const struct connman_driver *driver1 = a;
 302         const struct connman_driver *driver2 = b;
 303
 304         return driver2->priority - driver1->priority;
 305 }
 306
 307 static gboolean match_driver(struct connman_element *element,
 308                                         struct connman_driver *driver)
 309 {
 310         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 311                 return FALSE;
 312
 313         if (element->type == driver->type ||
 314                         driver->type == CONNMAN_ELEMENT_TYPE_UNKNOWN)
 315                 return TRUE;
 316
 317         return FALSE;
 318 }
 319
 320 static gboolean probe_driver(GNode *node, gpointer data)
 321 {
 322         struct connman_element *element = node->data;
 323         struct connman_driver *driver = data;
 324
 325         DBG("element %p name %s", element, element->name);
 326
 327         if (!element->driver && match_driver(element, driver) == TRUE) {
 328                 if (driver->probe(element) < 0)
 329                         return FALSE;
 330
 331                 __connman_element_lock(element);
 332                 element->driver = driver;
 333                 __connman_element_unlock(element);
 334         }
 335
 336         return FALSE;
 337 }
 338
 339 void __connman_driver_rescan(struct connman_driver *driver)
 340 {
 341         DBG("driver %p name %s", driver, driver->name);
 342
 343         if (!driver->probe)
 344                 return;
 345
 346         if (element_root != NULL)
 347                 g_node_traverse(element_root, G_PRE_ORDER,
 348                                 G_TRAVERSE_ALL, -1, probe_driver, driver);
 349 }
 350
 351 /**
 352  * connman_driver_register:
 353  * @driver: driver definition
 354  *
 355  * Register a new driver
 356  *
 357  * Returns: %0 on success
 358  */
 359 int connman_driver_register(struct connman_driver *driver)
 360 {
 361         DBG("driver %p name %s", driver, driver->name);
 362
 363         if (driver->type == CONNMAN_ELEMENT_TYPE_ROOT)
 364                 return -EINVAL;
 365
 366         if (!driver->probe)
 367                 return -EINVAL;
 368
 369         driver_list = g_slist_insert_sorted(driver_list, driver,
 370                                                         compare_priority);
 371
 372         if (started == FALSE)
 373                 return 0;
 374
 375         if (element_root != NULL)
 376                 g_node_traverse(element_root, G_PRE_ORDER,
 377                                 G_TRAVERSE_ALL, -1, probe_driver, driver);
 378
 379         return 0;
 380 }
 381
 382 static gboolean remove_driver(GNode *node, gpointer data)
 383 {
 384         struct connman_element *element = node->data;
 385         struct connman_driver *driver = data;
 386
 387         DBG("element %p name %s", element, element->name);
 388
 389         if (element->driver == driver) {
 390                 if (driver->remove)
 391                         driver->remove(element);
 392
 393                 __connman_element_lock(element);
 394                 element->driver = NULL;
 395                 __connman_element_unlock(element);
 396         }
 397
 398         return FALSE;
 399 }
 400
 401 /**
 402  * connman_driver_unregister:
 403  * @driver: driver definition
 404  *
 405  * Remove a previously registered driver
 406  */
 407 void connman_driver_unregister(struct connman_driver *driver)
 408 {
 409         DBG("driver %p name %s", driver, driver->name);
 410
 411         driver_list = g_slist_remove(driver_list, driver);
 412
 413         if (element_root != NULL)
 414                 g_node_traverse(element_root, G_POST_ORDER,
 415                                 G_TRAVERSE_ALL, -1, remove_driver, driver);
 416 }
 417
 418 static void unregister_property(gpointer data)
 419 {
 420         struct connman_property *property = data;
 421
 422         DBG("property %p", property);
 423
 424         g_free(property->value);
 425         g_free(property);
 426 }
 427
 428 void __connman_element_initialize(struct connman_element *element)
 429 {
 430         DBG("element %p", element);
 431
 432         element->refcount = 1;
 433
 434         element->name    = NULL;
 435         element->type    = CONNMAN_ELEMENT_TYPE_UNKNOWN;
 436         element->index   = -1;
 437         element->enabled = FALSE;
 438
 439         element->configuring = FALSE;
 440
 441         element->properties = g_hash_table_new_full(g_str_hash, g_str_equal,
 442                                                 g_free, unregister_property);
 443 }
 444
 445 /**
 446  * connman_element_create:
 447  * @name: element name
 448  *
 449  * Allocate a new element and assign the given #name to it. If the name
 450  * is #NULL, it will be later on created based on the element type.
 451  *
 452  * Returns: a newly-allocated #connman_element structure
 453  */
 454 struct connman_element *connman_element_create(const char *name)
 455 {
 456         struct connman_element *element;
 457
 458         element = g_try_new0(struct connman_element, 1);
 459         if (element == NULL)
 460                 return NULL;
 461
 462         DBG("element %p", element);
 463
 464         __connman_element_initialize(element);
 465
 466         return element;
 467 }
 468
 469 struct connman_element *connman_element_ref(struct connman_element *element)
 470 {
 471         DBG("element %p name %s refcount %d", element, element->name,
 472                                 g_atomic_int_get(&element->refcount) + 1);
 473
 474         g_atomic_int_inc(&element->refcount);
 475
 476         return element;
 477 }
 478
 479 static void free_properties(struct connman_element *element)
 480 {
 481         DBG("element %p name %s", element, element->name);
 482
 483         __connman_element_lock(element);
 484
 485         g_hash_table_destroy(element->properties);
 486         element->properties = NULL;
 487
 488         __connman_element_unlock(element);
 489 }
 490
 491 void connman_element_unref(struct connman_element *element)
 492 {
 493         DBG("element %p name %s refcount %d", element, element->name,
 494                                 g_atomic_int_get(&element->refcount) - 1);
 495
 496         if (g_atomic_int_dec_and_test(&element->refcount) == TRUE) {
 497                 if (element->destruct)
 498                         element->destruct(element);
 499                 free_properties(element);
 500                 g_free(element->ipv4.address);
 501                 g_free(element->ipv4.netmask);
 502                 g_free(element->ipv4.gateway);
 503                 g_free(element->ipv4.network);
 504                 g_free(element->ipv4.broadcast);
 505                 g_free(element->ipv4.nameserver);
 506                 g_free(element->devname);
 507                 g_free(element->path);
 508                 g_free(element->name);
 509                 g_free(element);
 510         }
 511 }
 512
 513 static int set_static_property(struct connman_element *element,
 514                                 const char *name, int type, const void *value)
 515 {
 516         struct connman_property *property;
 517
 518         DBG("element %p name %s", element, element->name);
 519
 520         if (type != DBUS_TYPE_STRING && type != DBUS_TYPE_BYTE)
 521                 return -EINVAL;
 522
 523         property = g_try_new0(struct connman_property, 1);
 524         if (property == NULL)
 525                 return -ENOMEM;
 526
 527         property->id   = CONNMAN_PROPERTY_ID_INVALID;
 528         property->type = type;
 529
 530         DBG("name %s type %d value %p", name, type, value);
 531
 532         switch (type) {
 533         case DBUS_TYPE_STRING:
 534                 property->value = g_strdup(*((const char **) value));
 535                 break;
 536         case DBUS_TYPE_BYTE:
 537                 property->value = g_try_malloc(1);
 538                 if (property->value != NULL)
 539                         memcpy(property->value, value, 1);
 540                 break;
 541         }
 542
 543         __connman_element_lock(element);
 544
 545         g_hash_table_replace(element->properties, g_strdup(name), property);
 546
 547         __connman_element_unlock(element);
 548
 549         return 0;
 550 }
 551
 552 static int set_static_array_property(struct connman_element *element,
 553                         const char *name, int type, const void *value, int len)
 554 {
 555         struct connman_property *property;
 556
 557         DBG("element %p name %s", element, element->name);
 558
 559         if (type != DBUS_TYPE_BYTE)
 560                 return -EINVAL;
 561
 562         property = g_try_new0(struct connman_property, 1);
 563         if (property == NULL)
 564                 return -ENOMEM;
 565
 566         property->id      = CONNMAN_PROPERTY_ID_INVALID;
 567         property->type    = DBUS_TYPE_ARRAY;
 568         property->subtype = type;
 569
 570         DBG("name %s type %d value %p", name, type, value);
 571
 572         switch (type) {
 573         case DBUS_TYPE_BYTE:
 574                 property->value = g_try_malloc(len);
 575                 if (property->value != NULL) {
 576                         memcpy(property->value,
 577                                 *((const unsigned char **) value), len);
 578                         property->size = len;
 579                 }
 580                 break;
 581         }
 582
 583         __connman_element_lock(element);
 584
 585         g_hash_table_replace(element->properties, g_strdup(name), property);
 586
 587         __connman_element_unlock(element);
 588
 589         return 0;
 590 }
 591
 592 #if 0
 593 static int set_property(struct connman_element *element,
 594                                 enum connman_property_id id, const void *value)
 595 {
 596         switch (id) {
 597         case CONNMAN_PROPERTY_ID_IPV4_ADDRESS:
 598                 __connman_element_lock(element);
 599                 g_free(element->ipv4.address);
 600                 element->ipv4.address = g_strdup(*((const char **) value));
 601                 __connman_element_unlock(element);
 602                 break;
 603         case CONNMAN_PROPERTY_ID_IPV4_NETMASK:
 604                 __connman_element_lock(element);
 605                 g_free(element->ipv4.netmask);
 606                 element->ipv4.netmask = g_strdup(*((const char **) value));
 607                 __connman_element_unlock(element);
 608                 break;
 609         case CONNMAN_PROPERTY_ID_IPV4_GATEWAY:
 610                 __connman_element_lock(element);
 611                 g_free(element->ipv4.gateway);
 612                 element->ipv4.gateway = g_strdup(*((const char **) value));
 613                 __connman_element_unlock(element);
 614                 break;
 615         case CONNMAN_PROPERTY_ID_IPV4_BROADCAST:
 616                 __connman_element_lock(element);
 617                 g_free(element->ipv4.broadcast);
 618                 element->ipv4.broadcast = g_strdup(*((const char **) value));
 619                 __connman_element_unlock(element);
 620                 break;
 621         case CONNMAN_PROPERTY_ID_IPV4_NAMESERVER:
 622                 __connman_element_lock(element);
 623                 g_free(element->ipv4.nameserver);
 624                 element->ipv4.nameserver = g_strdup(*((const char **) value));
 625                 __connman_element_unlock(element);
 626                 break;
 627         default:
 628                 return -EINVAL;
 629         }
 630
 631         return 0;
 632 }
 633 #endif
 634
 635 int connman_element_get_value(struct connman_element *element,
 636                                 enum connman_property_id id, void *value)
 637 {
 638         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 639                 return -EINVAL;
 640
 641         switch (id) {
 642         case CONNMAN_PROPERTY_ID_IPV4_METHOD:
 643                 if (element->ipv4.method == CONNMAN_IPV4_METHOD_UNKNOWN)
 644                         return connman_element_get_value(element->parent,
 645                                                                 id, value);
 646                 __connman_element_lock(element);
 647                 *((const char **) value) = __connman_ipv4_method2string(element->ipv4.method);
 648                 __connman_element_unlock(element);
 649                 break;
 650         case CONNMAN_PROPERTY_ID_IPV4_ADDRESS:
 651                 if (element->ipv4.address == NULL)
 652                         return connman_element_get_value(element->parent,
 653                                                                 id, value);
 654                 __connman_element_lock(element);
 655                 *((char **) value) = element->ipv4.address;
 656                 __connman_element_unlock(element);
 657                 break;
 658         case CONNMAN_PROPERTY_ID_IPV4_NETMASK:
 659                 if (element->ipv4.netmask == NULL)
 660                         return connman_element_get_value(element->parent,
 661                                                                 id, value);
 662                 __connman_element_lock(element);
 663                 *((char **) value) = element->ipv4.netmask;
 664                 __connman_element_unlock(element);
 665                 break;
 666         case CONNMAN_PROPERTY_ID_IPV4_GATEWAY:
 667                 if (element->ipv4.gateway == NULL)
 668                         return connman_element_get_value(element->parent,
 669                                                                 id, value);
 670                 __connman_element_lock(element);
 671                 *((char **) value) = element->ipv4.gateway;
 672                 __connman_element_unlock(element);
 673                 break;
 674         case CONNMAN_PROPERTY_ID_IPV4_BROADCAST:
 675                 if (element->ipv4.broadcast == NULL)
 676                         return connman_element_get_value(element->parent,
 677                                                                 id, value);
 678                 __connman_element_lock(element);
 679                 *((char **) value) = element->ipv4.broadcast;
 680                 __connman_element_unlock(element);
 681                 break;
 682         case CONNMAN_PROPERTY_ID_IPV4_NAMESERVER:
 683                 if (element->ipv4.nameserver == NULL)
 684                         return connman_element_get_value(element->parent,
 685                                                                 id, value);
 686                 __connman_element_lock(element);
 687                 *((char **) value) = element->ipv4.nameserver;
 688                 __connman_element_unlock(element);
 689                 break;
 690         default:
 691                 return -EINVAL;
 692         }
 693
 694         return 0;
 695 }
 696
 697 static gboolean get_static_property(struct connman_element *element,
 698                                                 const char *name, void *value)
 699 {
 700         struct connman_property *property;
 701         gboolean found = FALSE;
 702
 703         DBG("element %p name %s", element, element->name);
 704
 705         __connman_element_lock(element);
 706
 707         property = g_hash_table_lookup(element->properties, name);
 708         if (property != NULL) {
 709                 switch (property->type) {
 710                 case DBUS_TYPE_STRING:
 711                         *((char **) value) = property->value;
 712                         found = TRUE;
 713                         break;
 714                 case DBUS_TYPE_BYTE:
 715                         memcpy(value, property->value, 1);
 716                         found = TRUE;
 717                         break;
 718                 }
 719         }
 720
 721         __connman_element_unlock(element);
 722
 723         if (found == FALSE && element->parent != NULL)
 724                 return get_static_property(element->parent, name, value);
 725
 726         return found;
 727 }
 728
 729 static gboolean get_static_array_property(struct connman_element *element,
 730                         const char *name, void *value, unsigned int *len)
 731 {
 732         struct connman_property *property;
 733         gboolean found = FALSE;
 734
 735         DBG("element %p name %s", element, element->name);
 736
 737         __connman_element_lock(element);
 738
 739         property = g_hash_table_lookup(element->properties, name);
 740         if (property != NULL) {
 741                 *((char **) value) = property->value;
 742                 *len = property->size;
 743                 found = TRUE;
 744         }
 745
 746         __connman_element_unlock(element);
 747
 748         return found;
 749 }
 750
 751 #if 0
 752 static gboolean match_static_property(struct connman_element *element,
 753                                         const char *name, const void *value)
 754 {
 755         struct connman_property *property;
 756         gboolean result = FALSE;
 757
 758         DBG("element %p name %s", element, element->name);
 759
 760         __connman_element_lock(element);
 761
 762         property = g_hash_table_lookup(element->properties, name);
 763         if (property != NULL) {
 764                 if (property->type == DBUS_TYPE_STRING)
 765                         result = g_str_equal(property->value,
 766                                                 *((const char **) value));
 767         }
 768
 769         __connman_element_unlock(element);
 770
 771         return result;
 772 }
 773 #endif
 774
 775 /**
 776  * connman_element_set_string:
 777  * @element: element structure
 778  * @key: unique identifier
 779  * @value: string value
 780  *
 781  * Set string value for specific key
 782  */
 783 int connman_element_set_string(struct connman_element *element,
 784                                         const char *key, const char *value)
 785 {
 786         return set_static_property(element, key, DBUS_TYPE_STRING, &value);
 787 }
 788
 789 /**
 790  * connman_element_get_string:
 791  * @element: element structure
 792  * @key: unique identifier
 793  *
 794  * Get string value for specific key
 795  */
 796 const char *connman_element_get_string(struct connman_element *element,
 797                                                         const char *key)
 798 {
 799         const char *value;
 800
 801         if (get_static_property(element, key, &value) == FALSE)
 802                 return NULL;
 803
 804         return value;
 805 }
 806
 807 /**
 808  * connman_element_set_uint8:
 809  * @element: element structure
 810  * @key: unique identifier
 811  * @value: integer value
 812  *
 813  * Set integer value for specific key
 814  */
 815 int connman_element_set_uint8(struct connman_element *element,
 816                                         const char *key, connman_uint8_t value)
 817 {
 818         return set_static_property(element, key, DBUS_TYPE_BYTE, &value);
 819 }
 820
 821 /**
 822  * connman_element_get_uint8:
 823  * @element: element structure
 824  * @key: unique identifier
 825  *
 826  * Get integer value for specific key
 827  */
 828 connman_uint8_t connman_element_get_uint8(struct connman_element *element,
 829                                                         const char *key)
 830 {
 831         connman_uint8_t value;
 832
 833         if (get_static_property(element, key, &value) == FALSE)
 834                 return 0;
 835
 836         return value;
 837 }
 838
 839 /**
 840  * connman_element_set_blob:
 841  * @element: element structure
 842  * @key: unique identifier
 843  * @data: blob data
 844  * @size: blob size
 845  *
 846  * Set binary blob value for specific key
 847  */
 848 int connman_element_set_blob(struct connman_element *element,
 849                         const char *key, const void *data, unsigned int size)
 850 {
 851         return set_static_array_property(element, key,
 852                                                 DBUS_TYPE_BYTE, &data, size);
 853 }
 854
 855 /**
 856  * connman_element_get_blob:
 857  * @element: element structure
 858  * @key: unique identifier
 859  * @size: pointer to blob size
 860  *
 861  * Get binary blob value for specific key
 862  */
 863 const void *connman_element_get_blob(struct connman_element *element,
 864                                         const char *key, unsigned int *size)
 865 {
 866         void *value;
 867
 868         if (get_static_array_property(element, key, &value, size) == FALSE)
 869                 return NULL;
 870
 871         return value;
 872 }
 873
 874 int __connman_element_append_ipv4(struct connman_element *element,
 875                                                 DBusMessageIter *dict)
 876 {
 877         const char *method = NULL;
 878         const char *address = NULL, *netmask = NULL, *gateway = NULL;
 879
 880         connman_element_get_value(element,
 881                                 CONNMAN_PROPERTY_ID_IPV4_METHOD, &method);
 882
 883         connman_element_get_value(element,
 884                                 CONNMAN_PROPERTY_ID_IPV4_ADDRESS, &address);
 885         connman_element_get_value(element,
 886                                 CONNMAN_PROPERTY_ID_IPV4_NETMASK, &netmask);
 887         connman_element_get_value(element,
 888                                 CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
 889
 890         if (method != NULL)
 891                 connman_dbus_dict_append_variant(dict, "IPv4.Method",
 892                                                 DBUS_TYPE_STRING, &method);
 893
 894         if (address != NULL)
 895                 connman_dbus_dict_append_variant(dict, "IPv4.Address",
 896                                                 DBUS_TYPE_STRING, &address);
 897
 898         if (netmask != NULL)
 899                 connman_dbus_dict_append_variant(dict, "IPv4.Netmask",
 900                                                 DBUS_TYPE_STRING, &netmask);
 901
 902         if (gateway != NULL)
 903                 connman_dbus_dict_append_variant(dict, "IPv4.Gateway",
 904                                                 DBUS_TYPE_STRING, &gateway);
 905
 906         return 0;
 907 }
 908
 909 int __connman_element_set_ipv4(struct connman_element *element,
 910                                 const char *name, DBusMessageIter *value)
 911 {
 912         int type;
 913
 914         type = dbus_message_iter_get_arg_type(value);
 915
 916         if (g_str_equal(name, "IPv4.Method") == TRUE) {
 917                 enum connman_ipv4_method method;
 918                 const char *str;
 919
 920                 if (type != DBUS_TYPE_STRING)
 921                         return -EINVAL;
 922
 923                 dbus_message_iter_get_basic(value, &str);
 924                 method = __connman_ipv4_string2method(str);
 925                 if (method == CONNMAN_IPV4_METHOD_UNKNOWN)
 926                         return -EINVAL;
 927
 928                 if (method == element->ipv4.method)
 929                         return -EALREADY;
 930
 931                 element->ipv4.method = method;
 932
 933                 connman_element_update(element);
 934         } else if (g_str_equal(name, "IPv4.Address") == TRUE) {
 935                 const char *address;
 936
 937                 if (type != DBUS_TYPE_STRING)
 938                         return -EINVAL;
 939
 940                 dbus_message_iter_get_basic(value, &address);
 941
 942                 g_free(element->ipv4.address);
 943                 element->ipv4.address = g_strdup(address);
 944
 945                 connman_element_update(element);
 946         } else if (g_str_equal(name, "IPv4.Netmask") == TRUE) {
 947                 const char *netmask;
 948
 949                 if (type != DBUS_TYPE_STRING)
 950                         return -EINVAL;
 951
 952                 dbus_message_iter_get_basic(value, &netmask);
 953
 954                 g_free(element->ipv4.netmask);
 955                 element->ipv4.netmask = g_strdup(netmask);
 956
 957                 connman_element_update(element);
 958         } else if (g_str_equal(name, "IPv4.Gateway") == TRUE) {
 959                 const char *gateway;
 960
 961                 if (type != DBUS_TYPE_STRING)
 962                         return -EINVAL;
 963
 964                 dbus_message_iter_get_basic(value, &gateway);
 965
 966                 g_free(element->ipv4.gateway);
 967                 element->ipv4.gateway = g_strdup(gateway);
 968
 969                 connman_element_update(element);
 970         }
 971
 972         return 0;
 973 }
 974
 975 static void append_state(DBusMessageIter *entry, const char *state)
 976 {
 977         DBusMessageIter value;
 978         const char *key = "State";
 979
 980         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
 981
 982         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
 983                                         DBUS_TYPE_STRING_AS_STRING, &value);
 984         dbus_message_iter_append_basic(&value, DBUS_TYPE_STRING, &state);
 985         dbus_message_iter_close_container(entry, &value);
 986 }
 987
 988 static void emit_state_change(DBusConnection *conn, const char *state)
 989 {
 990         DBusMessage *signal;
 991         DBusMessageIter entry;
 992
 993         DBG("conn %p", conn);
 994
 995         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
 996                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
 997         if (signal == NULL)
 998                 return;
 999
1000         dbus_message_iter_init_append(signal, &entry);
1001
1002         append_state(&entry, state);
1003
1004         g_dbus_send_message(conn, signal);
1005 }
1006
1007 static void probe_element(struct connman_element *element)
1008 {
1009         GSList *list;
1010
1011         DBG("element %p name %s", element, element->name);
1012
1013         for (list = driver_list; list; list = list->next) {
1014                 struct connman_driver *driver = list->data;
1015
1016                 if (match_driver(element, driver) == FALSE)
1017                         continue;
1018
1019                 DBG("driver %p name %s", driver, driver->name);
1020
1021                 if (driver->probe(element) == 0) {
1022                         __connman_element_lock(element);
1023                         element->driver = driver;
1024                         __connman_element_unlock(element);
1025                         break;
1026                 }
1027         }
1028 }
1029
1030 static void register_element(gpointer data, gpointer user_data)
1031 {
1032         struct connman_element *element = data;
1033         const gchar *basepath;
1034         GNode *node;
1035
1036         __connman_element_lock(element);
1037
1038         if (element->parent) {
1039                 node = g_node_find(element_root, G_PRE_ORDER,
1040                                         G_TRAVERSE_ALL, element->parent);
1041                 basepath = element->parent->path;
1042         } else {
1043                 element->parent = element_root->data;
1044
1045                 node = element_root;
1046                 basepath = "";
1047         }
1048
1049         element->path = g_strdup_printf("%s/%s", basepath, element->name);
1050
1051         __connman_element_unlock(element);
1052
1053         DBG("element %p path %s", element, element->path);
1054
1055         g_node_append_data(node, element);
1056
1057         if (element->type == CONNMAN_ELEMENT_TYPE_DHCP) {
1058                 element->parent->configuring = TRUE;
1059
1060                 if (__connman_element_count(NULL,
1061                                         CONNMAN_ELEMENT_TYPE_CONNECTION) == 0)
1062                         emit_state_change(connection, "connecting");
1063         }
1064
1065         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION) {
1066                 struct connman_element *parent = element->parent;
1067
1068                 while (parent) {
1069                         parent->configuring = FALSE;
1070                         parent = parent->parent;
1071                 }
1072
1073                 if (__connman_element_count(NULL,
1074                                         CONNMAN_ELEMENT_TYPE_CONNECTION) == 1)
1075                         emit_state_change(connection, "online");
1076         }
1077
1078         emit_element_signal(connection, "ElementAdded", element);
1079
1080         if (started == FALSE)
1081                 return;
1082
1083         probe_element(element);
1084 }
1085
1086 /**
1087  * connman_element_register:
1088  * @element: the element to register
1089  * @parent: the parent to register the element with
1090  *
1091  * Register an element with the core. It will be register under the given
1092  * parent of if %NULL is provided under the root element.
1093  *
1094  * Returns: %0 on success
1095  */
1096 int connman_element_register(struct connman_element *element,
1097                                         struct connman_element *parent)
1098 {
1099         DBG("element %p name %s parent %p", element, element->name, parent);
1100
1101         if (element->devname == NULL)
1102                 element->devname = g_strdup(element->name);
1103
1104         if (device_filter && element->type == CONNMAN_ELEMENT_TYPE_DEVICE) {
1105                 if (g_pattern_match_simple(device_filter,
1106                                                 element->devname) == FALSE) {
1107                         DBG("ignoring %s [%s] device", element->name,
1108                                                         element->devname);
1109                         return -EPERM;
1110                 }
1111         }
1112
1113         if (connman_element_ref(element) == NULL)
1114                 return -EINVAL;
1115
1116         __connman_element_lock(element);
1117
1118         if (element->name == NULL) {
1119                 element->name = g_strdup(type2string(element->type));
1120                 if (element->name == NULL) {
1121                         __connman_element_unlock(element);
1122                         return -EINVAL;
1123                 }
1124         }
1125
1126         if (element->type == CONNMAN_ELEMENT_TYPE_DHCP)
1127                 element->ipv4.method = CONNMAN_IPV4_METHOD_DHCP;
1128
1129         element->parent = parent;
1130
1131         __connman_element_unlock(element);
1132
1133         register_element(element, NULL);
1134
1135         return 0;
1136 }
1137
1138 static gboolean remove_element(GNode *node, gpointer user_data)
1139 {
1140         struct connman_element *element = node->data;
1141         struct connman_element *root = user_data;
1142
1143         DBG("element %p name %s", element, element->name);
1144
1145         if (element == root)
1146                 return FALSE;
1147
1148         if (node != NULL)
1149                 g_node_unlink(node);
1150
1151         if (element->driver) {
1152                 if (element->driver->remove)
1153                         element->driver->remove(element);
1154
1155                 __connman_element_lock(element);
1156                 element->driver = NULL;
1157                 __connman_element_unlock(element);
1158         }
1159
1160         if (node != NULL)
1161                 g_node_destroy(node);
1162
1163         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION) {
1164                 if (__connman_element_count(NULL,
1165                                         CONNMAN_ELEMENT_TYPE_CONNECTION) == 0)
1166                         emit_state_change(connection, "offline");
1167         }
1168
1169         emit_element_signal(connection, "ElementRemoved", element);
1170
1171         connman_element_unref(element);
1172
1173         return FALSE;
1174 }
1175
1176 void connman_element_unregister(struct connman_element *element)
1177 {
1178         GNode *node;
1179
1180         DBG("element %p name %s", element, element->name);
1181
1182         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1183
1184         if (node != NULL)
1185                 g_node_traverse(node, G_POST_ORDER,
1186                                 G_TRAVERSE_ALL, -1, remove_element, NULL);
1187 }
1188
1189 void connman_element_unregister_children(struct connman_element *element)
1190 {
1191         GNode *node;
1192
1193         DBG("element %p name %s", element, element->name);
1194
1195         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1196
1197         if (node != NULL)
1198                 g_node_traverse(node, G_POST_ORDER,
1199                                 G_TRAVERSE_ALL, -1, remove_element, element);
1200 }
1201
1202 static gboolean update_element(GNode *node, gpointer user_data)
1203 {
1204         struct connman_element *element = node->data;
1205
1206         DBG("element %p name %s", element, element->name);
1207
1208         if (element->driver && element->driver->update)
1209                 element->driver->update(element);
1210
1211         emit_element_signal(connection, "ElementUpdated", element);
1212
1213         return FALSE;
1214 }
1215
1216 void connman_element_update(struct connman_element *element)
1217 {
1218         GNode *node;
1219
1220         DBG("element %p name %s", element, element->name);
1221
1222         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1223
1224         if (node != NULL)
1225                 g_node_traverse(node, G_PRE_ORDER,
1226                                 G_TRAVERSE_ALL, -1, update_element, element);
1227 }
1228
1229 int connman_element_set_enabled(struct connman_element *element,
1230                                                         gboolean enabled)
1231 {
1232         if (element->enabled == enabled)
1233                 return 0;
1234
1235         element->enabled = enabled;
1236
1237         connman_element_update(element);
1238
1239         return 0;
1240 }
1241
1242 int __connman_element_init(DBusConnection *conn, const char *device,
1243                                                         const char *nodevice)
1244 {
1245         struct connman_element *element;
1246
1247         DBG("conn %p", conn);
1248
1249         connection = dbus_connection_ref(conn);
1250         if (connection == NULL)
1251                 return -EIO;
1252
1253         device_filter = g_strdup(device);
1254
1255         element = connman_element_create("root");
1256
1257         element->path = g_strdup("/");
1258         element->type = CONNMAN_ELEMENT_TYPE_ROOT;
1259
1260         element_root = g_node_new(element);
1261
1262         __connman_notifier_init();
1263         __connman_network_init();
1264         __connman_device_init();
1265
1266         return 0;
1267 }
1268
1269 static gboolean probe_node(GNode *node, gpointer data)
1270 {
1271         struct connman_element *element = node->data;
1272
1273         DBG("element %p name %s", element, element->name);
1274
1275         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
1276                 return FALSE;
1277
1278         if (element->driver)
1279                 return FALSE;
1280
1281         probe_element(element);
1282
1283         return FALSE;
1284 }
1285
1286 void __connman_element_start(void)
1287 {
1288         DBG("");
1289
1290         g_node_traverse(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1291                                                         probe_node, NULL);
1292
1293         started = TRUE;
1294
1295         __connman_storage_init_device();
1296
1297         __connman_connection_init();
1298         __connman_ipv4_init();
1299         __connman_detect_init();
1300 }
1301
1302 void __connman_element_stop(void)
1303 {
1304         DBG("");
1305
1306         __connman_detect_cleanup();
1307         __connman_ipv4_cleanup();
1308         __connman_connection_cleanup();
1309 }
1310
1311 static gboolean free_driver(GNode *node, gpointer data)
1312 {
1313         struct connman_element *element = node->data;
1314
1315         DBG("element %p name %s", element, element->name);
1316
1317         if (element->driver) {
1318                 if (element->driver->remove)
1319                         element->driver->remove(element);
1320
1321                 __connman_element_lock(element);
1322                 element->driver = NULL;
1323                 __connman_element_unlock(element);
1324         }
1325
1326         return FALSE;
1327 }
1328
1329 static gboolean free_node(GNode *node, gpointer data)
1330 {
1331         struct connman_element *element = node->data;
1332
1333         DBG("element %p name %s", element, element->name);
1334
1335         if (g_node_depth(node) > 1)
1336                 connman_element_unregister(element);
1337
1338         return FALSE;
1339 }
1340
1341 void __connman_element_cleanup(void)
1342 {
1343         DBG("");
1344
1345         __connman_device_cleanup();
1346         __connman_network_cleanup();
1347         __connman_notifier_cleanup();
1348
1349         g_node_traverse(element_root, G_POST_ORDER, G_TRAVERSE_ALL, -1,
1350                                                         free_driver, NULL);
1351
1352         g_node_traverse(element_root, G_POST_ORDER, G_TRAVERSE_ALL, -1,
1353                                                         free_node, NULL);
1354
1355         g_node_destroy(element_root);
1356         element_root = NULL;
1357
1358         g_free(device_filter);
1359
1360         dbus_connection_unref(connection);
1361 }