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_CARRIER:
 125                 return "carrier";
 126         case CONNMAN_SERVICE_STATE_ASSOCIATION:
 127                 return "association";
 128         case CONNMAN_SERVICE_STATE_CONFIGURATION:
 129                 return "configuration";
 130         case CONNMAN_SERVICE_STATE_READY:
 131                 return "ready";
 132         case CONNMAN_SERVICE_STATE_DISCONNECT:
 133                 return "disconnect";
 134         case CONNMAN_SERVICE_STATE_FAILURE:
 135                 return "failure";
 136         }
 137
 138         return NULL;
 139 }
 140
 141 static DBusMessage *get_properties(DBusConnection *conn,
 142                                         DBusMessage *msg, void *data)
 143 {
 144         struct connman_service *service = data;
 145         DBusMessage *reply;
 146         DBusMessageIter array, dict;
 147         const char *str;
 148
 149         DBG("conn %p", conn);
 150
 151         reply = dbus_message_new_method_return(msg);
 152         if (reply == NULL)
 153                 return NULL;
 154
 155         dbus_message_iter_init_append(reply, &array);
 156
 157         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 158                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 159                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 160                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 161
 162         str = type2string(service->type);
 163         if (str != NULL)
 164                 connman_dbus_dict_append_variant(&dict, "Type",
 165                                                 DBUS_TYPE_STRING, &str);
 166
 167         str = mode2string(service->mode);
 168         if (str != NULL)
 169                 connman_dbus_dict_append_variant(&dict, "Mode",
 170                                                 DBUS_TYPE_STRING, &str);
 171
 172         str = security2string(service->security);
 173         if (str != NULL)
 174                 connman_dbus_dict_append_variant(&dict, "Security",
 175                                                 DBUS_TYPE_STRING, &str);
 176
 177         str = state2string(service->state);
 178         if (str != NULL)
 179                 connman_dbus_dict_append_variant(&dict, "State",
 180                                                 DBUS_TYPE_STRING, &str);
 181
 182         if (service->strength > 0)
 183                 connman_dbus_dict_append_variant(&dict, "Strength",
 184                                         DBUS_TYPE_BYTE, &service->strength);
 185
 186         connman_dbus_dict_append_variant(&dict, "Favorite",
 187                                         DBUS_TYPE_BOOLEAN, &service->favorite);
 188
 189         if (service->name != NULL)
 190                 connman_dbus_dict_append_variant(&dict, "Name",
 191                                         DBUS_TYPE_STRING, &service->name);
 192
 193         dbus_message_iter_close_container(&array, &dict);
 194
 195         return reply;
 196 }
 197
 198 static DBusMessage *connect_service(DBusConnection *conn,
 199                                         DBusMessage *msg, void *data)
 200 {
 201         struct connman_service *service = data;
 202
 203         if (service->device != NULL) {
 204                 if (__connman_device_connect(service->device) < 0)
 205                         return __connman_error_failed(msg);
 206
 207                 service->state = CONNMAN_SERVICE_STATE_READY;
 208         }
 209
 210         return __connman_error_not_supported(msg);
 211 }
 212
 213 static DBusMessage *disconnect_service(DBusConnection *conn,
 214                                         DBusMessage *msg, void *data)
 215 {
 216         struct connman_service *service = data;
 217
 218         if (service->device != NULL) {
 219                 if (__connman_device_connect(service->device) < 0)
 220                         return __connman_error_failed(msg);
 221
 222                 service->state = CONNMAN_SERVICE_STATE_IDLE;
 223         }
 224
 225         return __connman_error_not_supported(msg);
 226 }
 227
 228 static DBusMessage *remove_service(DBusConnection *conn,
 229                                         DBusMessage *msg, void *data)
 230 {
 231         struct connman_service *service = data;
 232
 233         if (service->type == CONNMAN_SERVICE_TYPE_ETHERNET)
 234                 return __connman_error_not_supported(msg);
 235
 236         connman_service_set_favorite(service, FALSE);
 237
 238         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 239 }
 240
 241 static DBusMessage *move_before(DBusConnection *conn,
 242                                         DBusMessage *msg, void *data)
 243 {
 244         struct connman_service *service = data;
 245
 246         if (service->favorite == FALSE)
 247                 return __connman_error_not_supported(msg);
 248
 249         return __connman_error_not_implemented(msg);
 250 }
 251
 252 static DBusMessage *move_after(DBusConnection *conn,
 253                                         DBusMessage *msg, void *data)
 254 {
 255         struct connman_service *service = data;
 256
 257         if (service->favorite == FALSE)
 258                 return __connman_error_not_supported(msg);
 259
 260         return __connman_error_not_implemented(msg);
 261 }
 262
 263 static GDBusMethodTable service_methods[] = {
 264         { "GetProperties", "",  "a{sv}", get_properties     },
 265         { "Connect",       "",  "",      connect_service    },
 266         { "Disconnect",    "",  "",      disconnect_service },
 267         { "Remove",        "",  "",      remove_service     },
 268         { "MoveBefore",    "o", "",      move_before        },
 269         { "MoveAfter",     "o", "",      move_after         },
 270         { },
 271 };
 272
 273 static GDBusSignalTable service_signals[] = {
 274         { "PropertyChanged", "sv" },
 275         { },
 276 };
 277
 278 static void service_free(gpointer data)
 279 {
 280         struct connman_service *service = data;
 281         char *path = service->path;
 282
 283         DBG("service %p", service);
 284
 285         g_hash_table_remove(service_hash, service->identifier);
 286
 287         service->path = NULL;
 288
 289         if (path != NULL) {
 290                 __connman_profile_changed();
 291
 292                 g_dbus_unregister_interface(connection, path,
 293                                                 CONNMAN_SERVICE_INTERFACE);
 294                 g_free(path);
 295         }
 296
 297         g_free(service->name);
 298         g_free(service->identifier);
 299         g_free(service);
 300 }
 301
 302 /**
 303  * connman_service_put:
 304  * @service: service structure
 305  *
 306  * Release service if no longer needed
 307  */
 308 void connman_service_put(struct connman_service *service)
 309 {
 310         DBG("service %p", service);
 311
 312         if (g_atomic_int_dec_and_test(&service->refcount) == TRUE) {
 313                 GSequenceIter *iter;
 314
 315                 iter = g_hash_table_lookup(service_hash, service->identifier);
 316                 if (iter != NULL)
 317                         g_sequence_remove(iter);
 318                 else
 319                         service_free(service);
 320         }
 321 }
 322
 323 static void __connman_service_initialize(struct connman_service *service)
 324 {
 325         DBG("service %p", service);
 326
 327         service->refcount = 1;
 328
 329         service->type     = CONNMAN_SERVICE_TYPE_UNKNOWN;
 330         service->mode     = CONNMAN_SERVICE_MODE_UNKNOWN;
 331         service->security = CONNMAN_SERVICE_SECURITY_UNKNOWN;
 332         service->state    = CONNMAN_SERVICE_STATE_UNKNOWN;
 333
 334         service->favorite = FALSE;
 335
 336         service->order = 0;
 337 }
 338
 339 /**
 340  * connman_service_create:
 341  *
 342  * Allocate a new service.
 343  *
 344  * Returns: a newly-allocated #connman_service structure
 345  */
 346 struct connman_service *connman_service_create(void)
 347 {
 348         struct connman_service *service;
 349
 350         service = g_try_new0(struct connman_service, 1);
 351         if (service == NULL)
 352                 return NULL;
 353
 354         DBG("service %p", service);
 355
 356         __connman_service_initialize(service);
 357
 358         return service;
 359 }
 360
 361 /**
 362  * connman_service_ref:
 363  * @service: service structure
 364  *
 365  * Increase reference counter of service
 366  */
 367 struct connman_service *connman_service_ref(struct connman_service *service)
 368 {
 369         g_atomic_int_inc(&service->refcount);
 370
 371         return service;
 372 }
 373
 374 /**
 375  * connman_service_unref:
 376  * @service: service structure
 377  *
 378  * Decrease reference counter of service
 379  */
 380 void connman_service_unref(struct connman_service *service)
 381 {
 382         connman_service_put(service);
 383 }
 384
 385 static gint service_compare(gconstpointer a, gconstpointer b,
 386                                                         gpointer user_data)
 387 {
 388         struct connman_service *service_a = (void *) a;
 389         struct connman_service *service_b = (void *) b;
 390
 391         if (service_a->order > service_b->order)
 392                 return -1;
 393
 394         if (service_a->order < service_b->order)
 395                 return 1;
 396
 397         if (service_a->favorite == TRUE && service_b->favorite == FALSE)
 398                 return -1;
 399
 400         if (service_a->favorite == FALSE && service_b->favorite == TRUE)
 401                 return 1;
 402
 403         return (gint) service_b->strength - (gint) service_a->strength;
 404 }
 405
 406 /**
 407  * connman_service_set_favorite:
 408  * @service: service structure
 409  * @favorite: favorite value
 410  *
 411  * Change the favorite setting of service
 412  */
 413 int connman_service_set_favorite(struct connman_service *service,
 414                                                 connman_bool_t favorite)
 415 {
 416         GSequenceIter *iter;
 417
 418         iter = g_hash_table_lookup(service_hash, service->identifier);
 419         if (iter == NULL)
 420                 return -ENOENT;
 421
 422         if (service->favorite)
 423                 return -EALREADY;
 424
 425         service->favorite = favorite;
 426
 427         g_sequence_sort_changed(iter, service_compare, NULL);
 428
 429         __connman_profile_changed();
 430
 431         return 0;
 432 }
 433
 434 int __connman_service_set_carrier(struct connman_service *service,
 435                                                 connman_bool_t carrier)
 436 {
 437         switch (service->type) {
 438         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 439         case CONNMAN_SERVICE_TYPE_WIFI:
 440         case CONNMAN_SERVICE_TYPE_WIMAX:
 441                 return -EINVAL;
 442         case CONNMAN_SERVICE_TYPE_ETHERNET:
 443                 break;
 444         }
 445
 446         if (carrier == TRUE)
 447                 service->state = CONNMAN_SERVICE_STATE_CARRIER;
 448         else
 449                 service->state = CONNMAN_SERVICE_STATE_IDLE;
 450
 451         return connman_service_set_favorite(service, carrier);
 452 }
 453
 454 /**
 455  * connman_service_lookup:
 456  * @identifier: service identifier
 457  *
 458  * Look up a service by identifier (reference count will not be increased)
 459  */
 460 struct connman_service *connman_service_lookup(const char *identifier)
 461 {
 462         GSequenceIter *iter;
 463
 464         iter = g_hash_table_lookup(service_hash, identifier);
 465         if (iter != NULL)
 466                 return g_sequence_get(iter);
 467
 468         return NULL;
 469 }
 470
 471 /**
 472  * connman_service_get:
 473  * @identifier: service identifier
 474  *
 475  * Look up a service by identifier or create a new one if not found
 476  */
 477 struct connman_service *connman_service_get(const char *identifier)
 478 {
 479         struct connman_service *service;
 480         GSequenceIter *iter;
 481
 482         iter = g_hash_table_lookup(service_hash, identifier);
 483         if (iter != NULL) {
 484                 service = g_sequence_get(iter);
 485                 if (service != NULL)
 486                         g_atomic_int_inc(&service->refcount);
 487                 return service;
 488         }
 489
 490         service = g_try_new0(struct connman_service, 1);
 491         if (service == NULL)
 492                 return NULL;
 493
 494         DBG("service %p", service);
 495
 496         __connman_service_initialize(service);
 497
 498         service->identifier = g_strdup(identifier);
 499
 500         iter = g_sequence_insert_sorted(service_list, service,
 501                                                 service_compare, NULL);
 502
 503         g_hash_table_insert(service_hash, service->identifier, iter);
 504
 505         return service;
 506 }
 507
 508 static int service_register(struct connman_service *service)
 509 {
 510         const char *path = __connman_profile_active();
 511
 512         if (service->path != NULL)
 513                 return -EALREADY;
 514
 515         service->path = g_strdup_printf("%s/%s", path, service->identifier);
 516
 517         g_dbus_register_interface(connection, service->path,
 518                                         CONNMAN_SERVICE_INTERFACE,
 519                                         service_methods, service_signals,
 520                                                         NULL, service, NULL);
 521
 522         __connman_profile_changed();
 523
 524         return 0;
 525 }
 526
 527 /**
 528  * connman_service_lookup_from_device:
 529  * @device: device structure
 530  *
 531  * Look up a service by device (reference count will not be increased)
 532  */
 533 struct connman_service *__connman_service_lookup_from_device(struct connman_device *device)
 534 {
 535         struct connman_service *service;
 536         char *name;
 537
 538         name = g_strdup_printf("%s_%d", __connman_device_get_type(device),
 539                                         connman_device_get_index(device));
 540
 541         service = connman_service_lookup(name);
 542
 543         g_free(name);
 544
 545         return service;
 546 }
 547
 548 static enum connman_service_type convert_device_type(struct connman_device *device)
 549 {
 550         enum connman_device_type type = connman_device_get_type(device);
 551
 552         switch (type) {
 553         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 554         case CONNMAN_DEVICE_TYPE_VENDOR:
 555         case CONNMAN_DEVICE_TYPE_WIFI:
 556         case CONNMAN_DEVICE_TYPE_WIMAX:
 557         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 558         case CONNMAN_DEVICE_TYPE_GPS:
 559         case CONNMAN_DEVICE_TYPE_HSO:
 560         case CONNMAN_DEVICE_TYPE_NOZOMI:
 561         case CONNMAN_DEVICE_TYPE_HUAWEI:
 562         case CONNMAN_DEVICE_TYPE_NOVATEL:
 563                 break;
 564         case CONNMAN_DEVICE_TYPE_ETHERNET:
 565                 return CONNMAN_SERVICE_TYPE_ETHERNET;
 566         }
 567
 568         return CONNMAN_SERVICE_TYPE_UNKNOWN;
 569 }
 570
 571 /**
 572  * connman_service_create_from_device:
 573  * @device: device structure
 574  *
 575  * Look up service by device and if not found, create one
 576  */
 577 struct connman_service *__connman_service_create_from_device(struct connman_device *device)
 578 {
 579         struct connman_service *service;
 580         char *name;
 581
 582         name = g_strdup_printf("%s_%d", __connman_device_get_type(device),
 583                                         connman_device_get_index(device));
 584
 585         service = connman_service_get(name);
 586         if (service == NULL)
 587                 goto done;
 588
 589         if (service->path != NULL) {
 590                 connman_service_put(service);
 591                 service = NULL;
 592                 goto done;
 593         }
 594
 595         service->type = convert_device_type(device);
 596
 597         service->device = device;
 598
 599         service_register(service);
 600
 601 done:
 602         g_free(name);
 603
 604         return service;
 605 }
 606
 607 /**
 608  * connman_service_lookup_from_network:
 609  * @device: device structure
 610  *
 611  * Look up a service by network (reference count will not be increased)
 612  */
 613 struct connman_service *__connman_service_lookup_from_network(struct connman_network *network)
 614 {
 615         struct connman_service *service;
 616         char *name;
 617
 618         name = g_strdup_printf("%s_%s", __connman_network_get_type(network),
 619                                         __connman_network_get_group(network));
 620
 621         service = connman_service_lookup(name);
 622
 623         g_free(name);
 624
 625         return service;
 626 }
 627
 628 static enum connman_service_type convert_network_type(struct connman_network *network)
 629 {
 630         enum connman_network_type type = connman_network_get_type(network);
 631
 632         switch (type) {
 633         case CONNMAN_NETWORK_TYPE_UNKNOWN:
 634         case CONNMAN_NETWORK_TYPE_VENDOR:
 635         case CONNMAN_NETWORK_TYPE_BLUETOOTH_PAN:
 636         case CONNMAN_NETWORK_TYPE_BLUETOOTH_DUN:
 637         case CONNMAN_NETWORK_TYPE_HSO:
 638                 break;
 639         case CONNMAN_NETWORK_TYPE_WIFI:
 640                 return CONNMAN_SERVICE_TYPE_WIFI;
 641         case CONNMAN_NETWORK_TYPE_WIMAX:
 642                 return CONNMAN_SERVICE_TYPE_WIMAX;
 643         }
 644
 645         return CONNMAN_SERVICE_TYPE_UNKNOWN;
 646 }
 647
 648 /**
 649  * connman_service_create_from_network:
 650  * @device: device structure
 651  *
 652  * Look up service by network and if not found, create one
 653  */
 654 struct connman_service *__connman_service_create_from_network(struct connman_network *network)
 655 {
 656         struct connman_service *service;
 657         char *name;
 658
 659         name = g_strdup_printf("%s_%s", __connman_network_get_type(network),
 660                                         __connman_network_get_group(network));
 661
 662         service = connman_service_get(name);
 663         if (service == NULL)
 664                 goto done;
 665
 666         if (service->path != NULL) {
 667                 connman_service_put(service);
 668                 service = NULL;
 669                 goto done;
 670         }
 671
 672         service->type = convert_network_type(network);
 673
 674         service_register(service);
 675
 676 done:
 677         g_free(name);
 678
 679         return service;
 680 }
 681
 682 int __connman_service_init(void)
 683 {
 684         DBG("");
 685
 686         connection = connman_dbus_get_connection();
 687
 688         service_hash = g_hash_table_new_full(g_str_hash, g_str_equal,
 689                                                                 NULL, NULL);
 690
 691         service_list = g_sequence_new(service_free);
 692
 693         return 0;
 694 }
 695
 696 void __connman_service_cleanup(void)
 697 {
 698         DBG("");
 699
 700         g_sequence_free(service_list);
 701         service_list = NULL;
 702
 703         g_hash_table_destroy(service_hash);
 704         service_hash = NULL;
 705
 706         dbus_connection_unref(connection);
 707 }