vcs.maemo.org Git - connman/blob - src/service.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 <gdbus.h>
  27
  28 #include "connman.h"
  29
  30 static DBusConnection *connection = NULL;
  31
  32 static GSequence *service_list = NULL;
  33 static GHashTable *service_hash = NULL;
  34
  35 struct connman_service {
  36         gint refcount;
  37         char *identifier;
  38         char *path;
  39         enum connman_service_type type;
  40         enum connman_service_mode mode;
  41         enum connman_service_security security;
  42         enum connman_service_state state;
  43         connman_uint8_t strength;
  44         connman_bool_t favorite;
  45         unsigned int order;
  46         char *name;
  47         struct connman_device *device;
  48 };
  49
  50 static void append_path(gpointer value, gpointer user_data)
  51 {
  52         struct connman_service *service = value;
  53         DBusMessageIter *iter = user_data;
  54
  55         if (service->path == NULL)
  56                 return;
  57
  58         dbus_message_iter_append_basic(iter, DBUS_TYPE_OBJECT_PATH,
  59                                                         &service->path);
  60 }
  61
  62 void __connman_service_list(DBusMessageIter *iter)
  63 {
  64         DBG("");
  65
  66         g_sequence_foreach(service_list, append_path, iter);
  67 }
  68
  69 static const char *type2string(enum connman_service_type type)
  70 {
  71         switch (type) {
  72         case CONNMAN_SERVICE_TYPE_UNKNOWN:
  73                 break;
  74         case CONNMAN_SERVICE_TYPE_ETHERNET:
  75                 return "ethernet";
  76         case CONNMAN_SERVICE_TYPE_WIFI:
  77                 return "wifi";
  78         case CONNMAN_SERVICE_TYPE_WIMAX:
  79                 return "wimax";
  80         }
  81
  82         return NULL;
  83 }
  84
  85 static const char *mode2string(enum connman_service_mode mode)
  86 {
  87         switch (mode) {
  88         case CONNMAN_SERVICE_MODE_UNKNOWN:
  89                 break;
  90         case CONNMAN_SERVICE_MODE_MANAGED:
  91                 return "managed";
  92         case CONNMAN_SERVICE_MODE_ADHOC:
  93                 return "adhoc";
  94         }
  95
  96         return NULL;
  97 }
  98
  99 static const char *security2string(enum connman_service_security security)
 100 {
 101         switch (security) {
 102         case CONNMAN_SERVICE_SECURITY_UNKNOWN:
 103                 break;
 104         case CONNMAN_SERVICE_SECURITY_NONE:
 105                 return "none";
 106         case CONNMAN_SERVICE_SECURITY_WEP:
 107                 return "wep";
 108         case CONNMAN_SERVICE_SECURITY_WPA:
 109                 return "wpa";
 110         case CONNMAN_SERVICE_SECURITY_WPA2:
 111                 return "wpa2";
 112         }
 113
 114         return NULL;
 115 }
 116
 117 static const char *state2string(enum connman_service_state state)
 118 {
 119         switch (state) {
 120         case CONNMAN_SERVICE_STATE_UNKNOWN:
 121                 break;
 122         case CONNMAN_SERVICE_STATE_IDLE:
 123                 return "idle";
 124         case CONNMAN_SERVICE_STATE_ASSOCIATION:
 125                 return "association";
 126         case CONNMAN_SERVICE_STATE_CONFIGURATION:
 127                 return "configuration";
 128         case CONNMAN_SERVICE_STATE_READY:
 129                 return "ready";
 130         case CONNMAN_SERVICE_STATE_DISCONNECT:
 131                 return "disconnect";
 132         case CONNMAN_SERVICE_STATE_FAILURE:
 133                 return "failure";
 134         }
 135
 136         return NULL;
 137 }
 138
 139 static DBusMessage *get_properties(DBusConnection *conn,
 140                                         DBusMessage *msg, void *data)
 141 {
 142         struct connman_service *service = data;
 143         DBusMessage *reply;
 144         DBusMessageIter array, dict;
 145         const char *str;
 146
 147         DBG("conn %p", conn);
 148
 149         reply = dbus_message_new_method_return(msg);
 150         if (reply == NULL)
 151                 return NULL;
 152
 153         dbus_message_iter_init_append(reply, &array);
 154
 155         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 156                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 157                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 158                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 159
 160         str = type2string(service->type);
 161         if (str != NULL)
 162                 connman_dbus_dict_append_variant(&dict, "Type",
 163                                                 DBUS_TYPE_STRING, &str);
 164
 165         str = mode2string(service->mode);
 166         if (str != NULL)
 167                 connman_dbus_dict_append_variant(&dict, "Mode",
 168                                                 DBUS_TYPE_STRING, &str);
 169
 170         str = security2string(service->security);
 171         if (str != NULL)
 172                 connman_dbus_dict_append_variant(&dict, "Security",
 173                                                 DBUS_TYPE_STRING, &str);
 174
 175         str = state2string(service->state);
 176         if (str != NULL)
 177                 connman_dbus_dict_append_variant(&dict, "State",
 178                                                 DBUS_TYPE_STRING, &str);
 179
 180         if (service->strength > 0)
 181                 connman_dbus_dict_append_variant(&dict, "Strength",
 182                                         DBUS_TYPE_BYTE, &service->strength);
 183
 184         connman_dbus_dict_append_variant(&dict, "Favorite",
 185                                         DBUS_TYPE_BOOLEAN, &service->favorite);
 186
 187         if (service->name != NULL)
 188                 connman_dbus_dict_append_variant(&dict, "Name",
 189                                         DBUS_TYPE_STRING, &service->name);
 190
 191         dbus_message_iter_close_container(&array, &dict);
 192
 193         return reply;
 194 }
 195
 196 static DBusMessage *connect_service(DBusConnection *conn,
 197                                         DBusMessage *msg, void *data)
 198 {
 199         struct connman_service *service = data;
 200
 201         if (service->type == CONNMAN_SERVICE_TYPE_ETHERNET)
 202                 return __connman_error_not_supported(msg);
 203
 204         return __connman_error_not_implemented(msg);
 205 }
 206
 207 static DBusMessage *disconnect_service(DBusConnection *conn,
 208                                         DBusMessage *msg, void *data)
 209 {
 210         struct connman_service *service = data;
 211
 212         if (service->type == CONNMAN_SERVICE_TYPE_ETHERNET)
 213                 return __connman_error_not_supported(msg);
 214
 215         return __connman_error_not_implemented(msg);
 216 }
 217
 218 static DBusMessage *remove_service(DBusConnection *conn,
 219                                         DBusMessage *msg, void *data)
 220 {
 221         struct connman_service *service = data;
 222
 223         if (service->type == CONNMAN_SERVICE_TYPE_ETHERNET)
 224                 return __connman_error_not_supported(msg);
 225
 226         service->favorite = FALSE;
 227
 228         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 229 }
 230
 231 static DBusMessage *move_before(DBusConnection *conn,
 232                                         DBusMessage *msg, void *data)
 233 {
 234         struct connman_service *service = data;
 235
 236         if (service->favorite == FALSE)
 237                 return __connman_error_not_supported(msg);
 238
 239         return __connman_error_not_implemented(msg);
 240 }
 241
 242 static DBusMessage *move_after(DBusConnection *conn,
 243                                         DBusMessage *msg, void *data)
 244 {
 245         struct connman_service *service = data;
 246
 247         if (service->favorite == FALSE)
 248                 return __connman_error_not_supported(msg);
 249
 250         return __connman_error_not_implemented(msg);
 251 }
 252
 253 static GDBusMethodTable service_methods[] = {
 254         { "GetProperties", "",  "a{sv}", get_properties     },
 255         { "Connect",       "",  "",      connect_service    },
 256         { "Disconnect",    "",  "",      disconnect_service },
 257         { "Remove",        "",  "",      remove_service     },
 258         { "MoveBefore",    "o", "",      move_before        },
 259         { "MoveAfter",     "o", "",      move_after         },
 260         { },
 261 };
 262
 263 static GDBusSignalTable service_signals[] = {
 264         { "PropertyChanged", "sv" },
 265         { },
 266 };
 267
 268 static void service_free(gpointer data)
 269 {
 270         struct connman_service *service = data;
 271         char *path = service->path;
 272
 273         DBG("service %p", service);
 274
 275         g_hash_table_remove(service_hash, service->identifier);
 276
 277         service->path = NULL;
 278
 279         if (path != NULL) {
 280                 __connman_profile_changed();
 281
 282                 g_dbus_unregister_interface(connection, path,
 283                                                 CONNMAN_SERVICE_INTERFACE);
 284                 g_free(path);
 285         }
 286
 287         g_free(service->name);
 288         g_free(service->identifier);
 289         g_free(service);
 290 }
 291
 292 /**
 293  * connman_service_put:
 294  * @service: service structure
 295  *
 296  * Release service if no longer needed
 297  */
 298 void connman_service_put(struct connman_service *service)
 299 {
 300         DBG("service %p", service);
 301
 302         if (g_atomic_int_dec_and_test(&service->refcount) == TRUE) {
 303                 GSequenceIter *iter;
 304
 305                 iter = g_hash_table_lookup(service_hash, service->identifier);
 306                 if (iter != NULL)
 307                         g_sequence_remove(iter);
 308                 else
 309                         service_free(service);
 310         }
 311 }
 312
 313 static void __connman_service_initialize(struct connman_service *service)
 314 {
 315         DBG("service %p", service);
 316
 317         service->refcount = 1;
 318
 319         service->type     = CONNMAN_SERVICE_TYPE_UNKNOWN;
 320         service->mode     = CONNMAN_SERVICE_MODE_UNKNOWN;
 321         service->security = CONNMAN_SERVICE_SECURITY_UNKNOWN;
 322         service->state    = CONNMAN_SERVICE_STATE_UNKNOWN;
 323
 324         service->favorite = FALSE;
 325
 326         service->order = 0;
 327 }
 328
 329 /**
 330  * connman_service_create:
 331  *
 332  * Allocate a new service.
 333  *
 334  * Returns: a newly-allocated #connman_service structure
 335  */
 336 struct connman_service *connman_service_create(void)
 337 {
 338         struct connman_service *service;
 339
 340         service = g_try_new0(struct connman_service, 1);
 341         if (service == NULL)
 342                 return NULL;
 343
 344         DBG("service %p", service);
 345
 346         __connman_service_initialize(service);
 347
 348         return service;
 349 }
 350
 351 /**
 352  * connman_service_ref:
 353  * @service: service structure
 354  *
 355  * Increase reference counter of service
 356  */
 357 struct connman_service *connman_service_ref(struct connman_service *service)
 358 {
 359         g_atomic_int_inc(&service->refcount);
 360
 361         return service;
 362 }
 363
 364 /**
 365  * connman_service_unref:
 366  * @service: service structure
 367  *
 368  * Decrease reference counter of service
 369  */
 370 void connman_service_unref(struct connman_service *service)
 371 {
 372         connman_service_put(service);
 373 }
 374
 375 static gint service_compare(gconstpointer a, gconstpointer b,
 376                                                         gpointer user_data)
 377 {
 378         struct connman_service *service_a = (void *) a;
 379         struct connman_service *service_b = (void *) b;
 380
 381         if (service_a->order > service_b->order)
 382                 return -1;
 383
 384         if (service_a->order < service_b->order)
 385                 return 1;
 386
 387         if (service_a->favorite == TRUE && service_b->favorite == FALSE)
 388                 return -1;
 389
 390         if (service_a->favorite == FALSE && service_b->favorite == TRUE)
 391                 return 1;
 392
 393         return (gint) service_b->strength - (gint) service_a->strength;
 394 }
 395
 396 /**
 397  * connman_service_set_favorite:
 398  * @service: service structure
 399  * @favorite: favorite value
 400  *
 401  * Change the favorite setting of service
 402  */
 403 int connman_service_set_favorite(struct connman_service *service,
 404                                                 connman_bool_t favorite)
 405 {
 406         GSequenceIter *iter;
 407
 408         iter = g_hash_table_lookup(service_hash, service->identifier);
 409         if (iter == NULL)
 410                 return -ENOENT;
 411
 412         if (service->favorite)
 413                 return -EALREADY;
 414
 415         service->favorite = favorite;
 416
 417         g_sequence_sort_changed(iter, service_compare, NULL);
 418
 419         __connman_profile_changed();
 420
 421         return 0;
 422 }
 423
 424 /**
 425  * connman_service_lookup:
 426  * @identifier: service identifier
 427  *
 428  * Look up a service by identifier (reference count will not be increased)
 429  */
 430 struct connman_service *connman_service_lookup(const char *identifier)
 431 {
 432         GSequenceIter *iter;
 433
 434         iter = g_hash_table_lookup(service_hash, identifier);
 435         if (iter != NULL)
 436                 return g_sequence_get(iter);
 437
 438         return NULL;
 439 }
 440
 441 /**
 442  * connman_service_get:
 443  * @identifier: service identifier
 444  *
 445  * Look up a service by identifier or create a new one if not found
 446  */
 447 struct connman_service *connman_service_get(const char *identifier)
 448 {
 449         struct connman_service *service;
 450         GSequenceIter *iter;
 451
 452         iter = g_hash_table_lookup(service_hash, identifier);
 453         if (iter != NULL) {
 454                 service = g_sequence_get(iter);
 455                 if (service != NULL)
 456                         g_atomic_int_inc(&service->refcount);
 457                 return service;
 458         }
 459
 460         service = g_try_new0(struct connman_service, 1);
 461         if (service == NULL)
 462                 return NULL;
 463
 464         DBG("service %p", service);
 465
 466         __connman_service_initialize(service);
 467
 468         service->identifier = g_strdup(identifier);
 469
 470         iter = g_sequence_insert_sorted(service_list, service,
 471                                                 service_compare, NULL);
 472
 473         g_hash_table_insert(service_hash, service->identifier, iter);
 474
 475         return service;
 476 }
 477
 478 static int service_register(struct connman_service *service)
 479 {
 480         const char *path = __connman_profile_active();
 481
 482         if (service->path != NULL)
 483                 return -EALREADY;
 484
 485         service->path = g_strdup_printf("%s/%s", path, service->identifier);
 486
 487         g_dbus_register_interface(connection, service->path,
 488                                         CONNMAN_SERVICE_INTERFACE,
 489                                         service_methods, service_signals,
 490                                                         NULL, service, NULL);
 491
 492         __connman_profile_changed();
 493
 494         return 0;
 495 }
 496
 497 /**
 498  * connman_service_lookup_from_device:
 499  * @device: device structure
 500  *
 501  * Look up a service by device (reference count will not be increased)
 502  */
 503 struct connman_service *__connman_service_lookup_from_device(struct connman_device *device)
 504 {
 505         struct connman_service *service;
 506         char *name;
 507
 508         name = g_strdup_printf("%s_%d", __connman_device_get_type(device),
 509                                         connman_device_get_index(device));
 510
 511         service = connman_service_lookup(name);
 512
 513         g_free(name);
 514
 515         return service;
 516 }
 517
 518 static enum connman_service_type convert_device_type(struct connman_device *device)
 519 {
 520         enum connman_device_type type = connman_device_get_type(device);
 521
 522         switch (type) {
 523         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 524         case CONNMAN_DEVICE_TYPE_VENDOR:
 525         case CONNMAN_DEVICE_TYPE_WIFI:
 526         case CONNMAN_DEVICE_TYPE_WIMAX:
 527         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 528         case CONNMAN_DEVICE_TYPE_GPS:
 529         case CONNMAN_DEVICE_TYPE_HSO:
 530         case CONNMAN_DEVICE_TYPE_NOZOMI:
 531         case CONNMAN_DEVICE_TYPE_HUAWEI:
 532         case CONNMAN_DEVICE_TYPE_NOVATEL:
 533                 break;
 534         case CONNMAN_DEVICE_TYPE_ETHERNET:
 535                 return CONNMAN_SERVICE_TYPE_ETHERNET;
 536         }
 537
 538         return CONNMAN_SERVICE_TYPE_UNKNOWN;
 539 }
 540
 541 /**
 542  * connman_service_create_from_device:
 543  * @device: device structure
 544  *
 545  * Look up service by device and if not found, create one
 546  */
 547 struct connman_service *__connman_service_create_from_device(struct connman_device *device)
 548 {
 549         struct connman_service *service;
 550         char *name;
 551
 552         name = g_strdup_printf("%s_%d", __connman_device_get_type(device),
 553                                         connman_device_get_index(device));
 554
 555         service = connman_service_get(name);
 556         if (service == NULL)
 557                 goto done;
 558
 559         if (service->path != NULL) {
 560                 connman_service_put(service);
 561                 service = NULL;
 562                 goto done;
 563         }
 564
 565         service->type = convert_device_type(device);
 566
 567         service->device = device;
 568
 569         service_register(service);
 570
 571 done:
 572         g_free(name);
 573
 574         return service;
 575 }
 576
 577 /**
 578  * connman_service_lookup_from_network:
 579  * @device: device structure
 580  *
 581  * Look up a service by network (reference count will not be increased)
 582  */
 583 struct connman_service *__connman_service_lookup_from_network(struct connman_network *network)
 584 {
 585         struct connman_service *service;
 586         char *name;
 587
 588         name = g_strdup_printf("%s_%s", __connman_network_get_type(network),
 589                                         __connman_network_get_group(network));
 590
 591         service = connman_service_lookup(name);
 592
 593         g_free(name);
 594
 595         return service;
 596 }
 597
 598 static enum connman_service_type convert_network_type(struct connman_network *network)
 599 {
 600         enum connman_network_type type = connman_network_get_type(network);
 601
 602         switch (type) {
 603         case CONNMAN_NETWORK_TYPE_UNKNOWN:
 604         case CONNMAN_NETWORK_TYPE_VENDOR:
 605         case CONNMAN_NETWORK_TYPE_BLUETOOTH_PAN:
 606         case CONNMAN_NETWORK_TYPE_BLUETOOTH_DUN:
 607         case CONNMAN_NETWORK_TYPE_HSO:
 608                 break;
 609         case CONNMAN_NETWORK_TYPE_WIFI:
 610                 return CONNMAN_SERVICE_TYPE_WIFI;
 611         case CONNMAN_NETWORK_TYPE_WIMAX:
 612                 return CONNMAN_SERVICE_TYPE_WIMAX;
 613         }
 614
 615         return CONNMAN_SERVICE_TYPE_UNKNOWN;
 616 }
 617
 618 /**
 619  * connman_service_create_from_network:
 620  * @device: device structure
 621  *
 622  * Look up service by network and if not found, create one
 623  */
 624 struct connman_service *__connman_service_create_from_network(struct connman_network *network)
 625 {
 626         struct connman_service *service;
 627         char *name;
 628
 629         name = g_strdup_printf("%s_%s", __connman_network_get_type(network),
 630                                         __connman_network_get_group(network));
 631
 632         service = connman_service_get(name);
 633         if (service == NULL)
 634                 goto done;
 635
 636         if (service->path != NULL) {
 637                 connman_service_put(service);
 638                 service = NULL;
 639                 goto done;
 640         }
 641
 642         service->type = convert_network_type(network);
 643
 644         service_register(service);
 645
 646 done:
 647         g_free(name);
 648
 649         return service;
 650 }
 651
 652 int __connman_service_init(void)
 653 {
 654         DBG("");
 655
 656         connection = connman_dbus_get_connection();
 657
 658         service_hash = g_hash_table_new_full(g_str_hash, g_str_equal,
 659                                                                 NULL, NULL);
 660
 661         service_list = g_sequence_new(service_free);
 662
 663         return 0;
 664 }
 665
 666 void __connman_service_cleanup(void)
 667 {
 668         DBG("");
 669
 670         g_sequence_free(service_list);
 671         service_list = NULL;
 672
 673         g_hash_table_destroy(service_hash);
 674         service_hash = NULL;
 675
 676         dbus_connection_unref(connection);
 677 }