src/manager.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2013  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
  28 #include <gdbus.h>
  29
  30 #include <connman/agent.h>
  31
  32 #include "connman.h"
  33
  34 static bool connman_state_idle;
  35 static dbus_bool_t sessionmode;
  36
  37 static DBusMessage *get_properties(DBusConnection *conn,
  38                                         DBusMessage *msg, void *data)
  39 {
  40         DBusMessage *reply;
  41         DBusMessageIter array, dict;
  42         dbus_bool_t offlinemode;
  43         const char *str;
  44
  45         DBG("conn %p", conn);
  46
  47         reply = dbus_message_new_method_return(msg);
  48         if (!reply)
  49                 return NULL;
  50
  51         dbus_message_iter_init_append(reply, &array);
  52
  53         connman_dbus_dict_open(&array, &dict);
  54
  55         str = __connman_notifier_get_state();
  56         connman_dbus_dict_append_basic(&dict, "State",
  57                                                 DBUS_TYPE_STRING, &str);
  58
  59         offlinemode = __connman_technology_get_offlinemode();
  60         connman_dbus_dict_append_basic(&dict, "OfflineMode",
  61                                         DBUS_TYPE_BOOLEAN, &offlinemode);
  62
  63         connman_dbus_dict_append_basic(&dict, "SessionMode",
  64                                         DBUS_TYPE_BOOLEAN,
  65                                         &sessionmode);
  66
  67         connman_dbus_dict_close(&array, &dict);
  68
  69         return reply;
  70 }
  71
  72 static DBusMessage *set_property(DBusConnection *conn,
  73                                         DBusMessage *msg, void *data)
  74 {
  75         DBusMessageIter iter, value;
  76         const char *name;
  77         int type;
  78
  79         DBG("conn %p", conn);
  80
  81         if (!dbus_message_iter_init(msg, &iter))
  82                 return __connman_error_invalid_arguments(msg);
  83
  84         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
  85                 return __connman_error_invalid_arguments(msg);
  86
  87         dbus_message_iter_get_basic(&iter, &name);
  88         dbus_message_iter_next(&iter);
  89
  90         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
  91                 return __connman_error_invalid_arguments(msg);
  92
  93         dbus_message_iter_recurse(&iter, &value);
  94
  95         type = dbus_message_iter_get_arg_type(&value);
  96
  97         if (g_str_equal(name, "OfflineMode")) {
  98                 dbus_bool_t offlinemode;
  99
 100                 if (type != DBUS_TYPE_BOOLEAN)
 101                         return __connman_error_invalid_arguments(msg);
 102
 103                 dbus_message_iter_get_basic(&value, &offlinemode);
 104
 105                 if (offlinemode) {
 106                         uid_t uid;
 107                         if (connman_dbus_get_connection_unix_user_sync(conn,
 108                                                 dbus_message_get_sender(msg),
 109                                                 &uid) < 0) {
 110                                 DBG("Can not get unix user id!");
 111                                 return __connman_error_permission_denied(msg);
 112                         }
 113
 114                         if (!__connman_service_is_user_allowed(CONNMAN_SERVICE_TYPE_WIFI, uid)) {
 115                                 DBG("Not allow this user to turn on offlinemode now!");
 116                                 return __connman_error_permission_denied(msg);
 117                         }
 118                 }
 119                 __connman_technology_set_offlinemode(offlinemode);
 120         } else if (g_str_equal(name, "SessionMode")) {
 121
 122                 if (type != DBUS_TYPE_BOOLEAN)
 123                         return __connman_error_invalid_arguments(msg);
 124
 125                 dbus_message_iter_get_basic(&value, &sessionmode);
 126
 127         } else
 128                 return __connman_error_invalid_property(msg);
 129
 130         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 131 }
 132
 133 static void append_technology_structs(DBusMessageIter *iter, void *user_data)
 134 {
 135         __connman_technology_list_struct(iter);
 136 }
 137
 138 static DBusMessage *get_technologies(DBusConnection *conn,
 139                 DBusMessage *msg, void *data)
 140 {
 141         DBusMessage *reply;
 142
 143         DBG("");
 144
 145         reply = dbus_message_new_method_return(msg);
 146         if (!reply)
 147                 return NULL;
 148
 149         __connman_dbus_append_objpath_dict_array(reply,
 150                         append_technology_structs, NULL);
 151
 152         return reply;
 153 }
 154
 155 static DBusMessage *remove_provider(DBusConnection *conn,
 156                                     DBusMessage *msg, void *data)
 157 {
 158         const char *path;
 159         int err;
 160
 161         DBG("conn %p", conn);
 162
 163         dbus_message_get_args(msg, NULL, DBUS_TYPE_OBJECT_PATH, &path,
 164                                                         DBUS_TYPE_INVALID);
 165
 166         err = __connman_provider_remove_by_path(path);
 167         if (err < 0)
 168                 return __connman_error_failed(msg, -err);
 169
 170         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 171 }
 172
 173 static DBusConnection *connection = NULL;
 174
 175 static void idle_state(bool idle)
 176 {
 177
 178         DBG("idle %d", idle);
 179
 180         connman_state_idle = idle;
 181
 182         if (!connman_state_idle)
 183                 return;
 184 }
 185
 186 static struct connman_notifier technology_notifier = {
 187         .name           = "manager",
 188         .priority       = CONNMAN_NOTIFIER_PRIORITY_HIGH,
 189         .idle_state     = idle_state,
 190 };
 191
 192 static void append_service_structs(DBusMessageIter *iter, void *user_data)
 193 {
 194         __connman_service_list_struct(iter);
 195 }
 196
 197 static DBusMessage *get_services(DBusConnection *conn,
 198                                         DBusMessage *msg, void *data)
 199 {
 200         DBusMessage *reply;
 201
 202         reply = dbus_message_new_method_return(msg);
 203         if (!reply)
 204                 return NULL;
 205
 206         __connman_dbus_append_objpath_dict_array(reply,
 207                         append_service_structs, NULL);
 208
 209         return reply;
 210 }
 211
 212 static void append_peer_structs(DBusMessageIter *iter, void *user_data)
 213 {
 214         __connman_peer_list_struct(iter);
 215 }
 216
 217 static DBusMessage *get_peers(DBusConnection *conn,
 218                                         DBusMessage *msg, void *data)
 219 {
 220         DBusMessage *reply;
 221
 222         reply = dbus_message_new_method_return(msg);
 223         if (!reply)
 224                 return NULL;
 225
 226         __connman_dbus_append_objpath_dict_array(reply,
 227                                         append_peer_structs, NULL);
 228         return reply;
 229 }
 230
 231 static DBusMessage *connect_provider(DBusConnection *conn,
 232                                         DBusMessage *msg, void *data)
 233 {
 234         int err;
 235
 236         DBG("conn %p", conn);
 237
 238         err = __connman_provider_create_and_connect(msg);
 239         if (err < 0)
 240                 return __connman_error_failed(msg, -err);
 241
 242         return NULL;
 243 }
 244
 245 static DBusMessage *register_agent(DBusConnection *conn,
 246                                         DBusMessage *msg, void *data)
 247 {
 248         const char *sender, *path;
 249         int err;
 250
 251         DBG("conn %p", conn);
 252
 253         sender = dbus_message_get_sender(msg);
 254
 255         dbus_message_get_args(msg, NULL, DBUS_TYPE_OBJECT_PATH, &path,
 256                                                         DBUS_TYPE_INVALID);
 257
 258         err = connman_agent_register(sender, path);
 259         if (err < 0)
 260                 return __connman_error_failed(msg, -err);
 261
 262         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 263 }
 264
 265 static DBusMessage *unregister_agent(DBusConnection *conn,
 266                                         DBusMessage *msg, void *data)
 267 {
 268         const char *sender, *path;
 269         int err;
 270
 271         DBG("conn %p", conn);
 272
 273         sender = dbus_message_get_sender(msg);
 274
 275         dbus_message_get_args(msg, NULL, DBUS_TYPE_OBJECT_PATH, &path,
 276                                                         DBUS_TYPE_INVALID);
 277
 278         err = connman_agent_unregister(sender, path);
 279         if (err < 0)
 280                 return __connman_error_failed(msg, -err);
 281
 282         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 283 }
 284
 285 static DBusMessage *register_counter(DBusConnection *conn,
 286                                         DBusMessage *msg, void *data)
 287 {
 288         const char *sender, *path;
 289         unsigned int accuracy, period;
 290         int err;
 291
 292         DBG("conn %p", conn);
 293
 294         sender = dbus_message_get_sender(msg);
 295
 296         dbus_message_get_args(msg, NULL, DBUS_TYPE_OBJECT_PATH, &path,
 297                                                 DBUS_TYPE_UINT32, &accuracy,
 298                                                 DBUS_TYPE_UINT32, &period,
 299                                                         DBUS_TYPE_INVALID);
 300
 301         /* FIXME: add handling of accuracy parameter */
 302
 303         err = __connman_counter_register(sender, path, period);
 304         if (err < 0)
 305                 return __connman_error_failed(msg, -err);
 306
 307         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 308 }
 309
 310 static DBusMessage *unregister_counter(DBusConnection *conn,
 311                                         DBusMessage *msg, void *data)
 312 {
 313         const char *sender, *path;
 314         int err;
 315
 316         DBG("conn %p", conn);
 317
 318         sender = dbus_message_get_sender(msg);
 319
 320         dbus_message_get_args(msg, NULL, DBUS_TYPE_OBJECT_PATH, &path,
 321                                                         DBUS_TYPE_INVALID);
 322
 323         err = __connman_counter_unregister(sender, path);
 324         if (err < 0)
 325                 return __connman_error_failed(msg, -err);
 326
 327         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 328 }
 329
 330 static DBusMessage *create_session(DBusConnection *conn,
 331                                         DBusMessage *msg, void *data)
 332 {
 333         int err;
 334
 335         DBG("conn %p", conn);
 336
 337         err = __connman_session_create(msg);
 338         if (err < 0) {
 339                 if (err == -EINPROGRESS)
 340                         return NULL;
 341
 342                 return __connman_error_failed(msg, -err);
 343         }
 344
 345         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 346 }
 347
 348 static DBusMessage *destroy_session(DBusConnection *conn,
 349                                         DBusMessage *msg, void *data)
 350 {
 351         int err;
 352
 353         DBG("conn %p", conn);
 354
 355         err = __connman_session_destroy(msg);
 356         if (err < 0)
 357                 return __connman_error_failed(msg, -err);
 358
 359         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 360 }
 361
 362 static DBusMessage *request_private_network(DBusConnection *conn,
 363                                         DBusMessage *msg, void *data)
 364 {
 365         const char *sender;
 366         int  err;
 367
 368         DBG("conn %p", conn);
 369
 370         sender = dbus_message_get_sender(msg);
 371
 372         err = __connman_private_network_request(msg, sender);
 373         if (err < 0)
 374                 return __connman_error_failed(msg, -err);
 375
 376         return NULL;
 377 }
 378
 379 static DBusMessage *release_private_network(DBusConnection *conn,
 380                                         DBusMessage *msg, void *data)
 381 {
 382         const char *path;
 383         int err;
 384
 385         DBG("conn %p", conn);
 386
 387         dbus_message_get_args(msg, NULL, DBUS_TYPE_OBJECT_PATH, &path,
 388                                                         DBUS_TYPE_INVALID);
 389
 390         err = __connman_private_network_release(path);
 391         if (err < 0)
 392                 return __connman_error_failed(msg, -err);
 393
 394         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 395 }
 396
 397 static int parse_peers_service_specs(DBusMessageIter *array,
 398                         const unsigned char **spec, int *spec_len,
 399                         const unsigned char **query, int *query_len,
 400                         int *version)
 401 {
 402         *spec = *query = NULL;
 403         *spec_len = *query_len = *version = 0;
 404
 405         while (dbus_message_iter_get_arg_type(array) ==
 406                                                         DBUS_TYPE_DICT_ENTRY) {
 407                 DBusMessageIter entry, inter, value;
 408                 const char *key;
 409
 410                 dbus_message_iter_recurse(array, &entry);
 411                 dbus_message_iter_get_basic(&entry, &key);
 412
 413                 dbus_message_iter_next(&entry);
 414
 415                 dbus_message_iter_recurse(&entry, &inter);
 416
 417                 if  (!g_strcmp0(key, "BonjourResponse")) {
 418                         dbus_message_iter_recurse(&inter, &value);
 419                         dbus_message_iter_get_fixed_array(&value,
 420                                                         spec, spec_len);
 421                 } else if (!g_strcmp0(key, "BonjourQuery")) {
 422                         dbus_message_iter_recurse(&inter, &value);
 423                         dbus_message_iter_get_fixed_array(&value,
 424                                                         query, query_len);
 425                 } else if (!g_strcmp0(key, "UpnpService")) {
 426                         dbus_message_iter_get_basic(&inter, spec);
 427                         *spec_len = strlen((const char *)*spec)+1;
 428                 } else if (!g_strcmp0(key, "UpnpVersion")) {
 429                         dbus_message_iter_get_basic(&inter, version);
 430                 } else if (!g_strcmp0(key, "WiFiDisplayIEs")) {
 431                         if (*spec || *query)
 432                                 return -EINVAL;
 433
 434                         dbus_message_iter_recurse(&inter, &value);
 435                         dbus_message_iter_get_fixed_array(&value,
 436                                                         spec, spec_len);
 437                 } else
 438                         return -EINVAL;
 439
 440                 dbus_message_iter_next(array);
 441         }
 442
 443         if ((*query && !*spec && !*version) ||
 444                                 (!*spec && !*query) || (!*spec && *version))
 445                 return -EINVAL;
 446
 447         return 0;
 448 }
 449
 450 static DBusMessage *register_peer_service(DBusConnection *conn,
 451                                                 DBusMessage *msg, void *data)
 452 {
 453         const unsigned char *spec, *query;
 454         DBusMessageIter iter, array;
 455         int spec_len, query_len;
 456         dbus_bool_t master;
 457         const char *owner;
 458         int version;
 459         int ret;
 460
 461         DBG("");
 462
 463         owner = dbus_message_get_sender(msg);
 464
 465         dbus_message_iter_init(msg, &iter);
 466         dbus_message_iter_recurse(&iter, &array);
 467
 468         ret = parse_peers_service_specs(&array, &spec, &spec_len,
 469                                                 &query, &query_len, &version);
 470         if (ret)
 471                 goto error;
 472
 473         dbus_message_iter_next(&iter);
 474         dbus_message_iter_get_basic(&iter, &master);
 475
 476         ret = __connman_peer_service_register(owner, msg, spec, spec_len,
 477                                         query, query_len, version,master);
 478         if (!ret)
 479                 return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 480         if (ret == -EINPROGRESS)
 481                 return NULL;
 482 error:
 483         return __connman_error_failed(msg, -ret);
 484 }
 485
 486 static DBusMessage *unregister_peer_service(DBusConnection *conn,
 487                                                 DBusMessage *msg, void *data)
 488 {
 489         const unsigned char *spec, *query;
 490         DBusMessageIter iter, array;
 491         int spec_len, query_len;
 492         const char *owner;
 493         int version;
 494         int ret;
 495
 496         DBG("");
 497
 498         owner = dbus_message_get_sender(msg);
 499
 500         dbus_message_iter_init(msg, &iter);
 501         dbus_message_iter_recurse(&iter, &array);
 502
 503         ret = parse_peers_service_specs(&array, &spec, &spec_len,
 504                                                 &query, &query_len, &version);
 505         if (ret)
 506                 goto error;
 507
 508         ret = __connman_peer_service_unregister(owner, spec, spec_len,
 509                                                 query, query_len, version);
 510         if (!ret)
 511                 return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 512 error:
 513         return __connman_error_failed(msg, -ret);
 514
 515 }
 516
 517 static const GDBusMethodTable manager_methods[] = {
 518         { GDBUS_METHOD("GetProperties",
 519                         NULL, GDBUS_ARGS({ "properties", "a{sv}" }),
 520                         get_properties) },
 521         { GDBUS_ASYNC_METHOD("SetProperty",
 522                         GDBUS_ARGS({ "name", "s" }, { "value", "v" }),
 523                         NULL, set_property) },
 524         { GDBUS_METHOD("GetTechnologies",
 525                         NULL, GDBUS_ARGS({ "technologies", "a(oa{sv})" }),
 526                         get_technologies) },
 527         { GDBUS_DEPRECATED_METHOD("RemoveProvider",
 528                         GDBUS_ARGS({ "provider", "o" }), NULL,
 529                         remove_provider) },
 530         { GDBUS_METHOD("GetServices",
 531                         NULL, GDBUS_ARGS({ "services", "a(oa{sv})" }),
 532                         get_services) },
 533         { GDBUS_METHOD("GetPeers",
 534                         NULL, GDBUS_ARGS({ "peers", "a(oa{sv})" }),
 535                         get_peers) },
 536         { GDBUS_DEPRECATED_ASYNC_METHOD("ConnectProvider",
 537                               GDBUS_ARGS({ "provider", "a{sv}" }),
 538                               GDBUS_ARGS({ "path", "o" }),
 539                               connect_provider) },
 540         { GDBUS_METHOD("RegisterAgent",
 541                         GDBUS_ARGS({ "path", "o" }), NULL,
 542                         register_agent) },
 543         { GDBUS_METHOD("UnregisterAgent",
 544                         GDBUS_ARGS({ "path", "o" }), NULL,
 545                         unregister_agent) },
 546         { GDBUS_METHOD("RegisterCounter",
 547                         GDBUS_ARGS({ "path", "o" }, { "accuracy", "u" },
 548                                         { "period", "u" }),
 549                         NULL, register_counter) },
 550         { GDBUS_METHOD("UnregisterCounter",
 551                         GDBUS_ARGS({ "path", "o" }), NULL,
 552                         unregister_counter) },
 553         { GDBUS_ASYNC_METHOD("CreateSession",
 554                         GDBUS_ARGS({ "settings", "a{sv}" },
 555                                                 { "notifier", "o" }),
 556                         GDBUS_ARGS({ "session", "o" }),
 557                         create_session) },
 558         { GDBUS_METHOD("DestroySession",
 559                         GDBUS_ARGS({ "session", "o" }), NULL,
 560                         destroy_session) },
 561         { GDBUS_ASYNC_METHOD("RequestPrivateNetwork",
 562                               NULL, GDBUS_ARGS({ "path", "o" },
 563                                                { "settings", "a{sv}" },
 564                                                { "socket", "h" }),
 565                               request_private_network) },
 566         { GDBUS_METHOD("ReleasePrivateNetwork",
 567                         GDBUS_ARGS({ "path", "o" }), NULL,
 568                         release_private_network) },
 569         { GDBUS_ASYNC_METHOD("RegisterPeerService",
 570                         GDBUS_ARGS({ "specification", "a{sv}" },
 571                                    { "master", "b" }), NULL,
 572                         register_peer_service) },
 573         { GDBUS_METHOD("UnregisterPeerService",
 574                         GDBUS_ARGS({ "specification", "a{sv}" }), NULL,
 575                         unregister_peer_service) },
 576         { },
 577 };
 578
 579 static const GDBusSignalTable manager_signals[] = {
 580         { GDBUS_SIGNAL("PropertyChanged",
 581                         GDBUS_ARGS({ "name", "s" }, { "value", "v" })) },
 582         { GDBUS_SIGNAL("TechnologyAdded",
 583                         GDBUS_ARGS({ "path", "o" },
 584                                    { "properties", "a{sv}" })) },
 585         { GDBUS_SIGNAL("TechnologyRemoved",
 586                         GDBUS_ARGS({ "path", "o" })) },
 587         { GDBUS_SIGNAL("ServicesChanged",
 588                         GDBUS_ARGS({ "changed", "a(oa{sv})" },
 589                                         { "removed", "ao" })) },
 590         { GDBUS_SIGNAL("PeersChanged",
 591                         GDBUS_ARGS({ "changed", "a(oa{sv})" },
 592                                         { "removed", "ao" })) },
 593         { },
 594 };
 595
 596 int __connman_manager_init(void)
 597 {
 598         DBG("");
 599
 600         connection = connman_dbus_get_connection();
 601         if (!connection)
 602                 return -1;
 603
 604         if (connman_notifier_register(&technology_notifier) < 0)
 605                 connman_error("Failed to register technology notifier");
 606
 607         g_dbus_register_interface(connection, CONNMAN_MANAGER_PATH,
 608                                         CONNMAN_MANAGER_INTERFACE,
 609                                         manager_methods,
 610                                         manager_signals, NULL, NULL, NULL);
 611
 612         connman_state_idle = true;
 613
 614         return 0;
 615 }
 616
 617 void __connman_manager_cleanup(void)
 618 {
 619         DBG("");
 620
 621         if (!connection)
 622                 return;
 623
 624         connman_notifier_unregister(&technology_notifier);
 625
 626         g_dbus_unregister_interface(connection, CONNMAN_MANAGER_PATH,
 627                                                 CONNMAN_MANAGER_INTERFACE);
 628
 629         dbus_connection_unref(connection);
 630 }