src/agent.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2010  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 <stdlib.h>
  28 #include <string.h>
  29
  30 #include <gdbus.h>
  31
  32 #include "connman.h"
  33
  34 static DBusConnection *connection = NULL;
  35 static guint agent_watch = 0;
  36 static gchar *agent_path = NULL;
  37 static gchar *agent_sender = NULL;
  38
  39 static void agent_free(void)
  40 {
  41         agent_watch = 0;
  42
  43         g_free(agent_sender);
  44         agent_sender = NULL;
  45
  46         g_free(agent_path);
  47         agent_path = NULL;
  48 }
  49
  50 static void agent_disconnect(DBusConnection *connection, void *data)
  51 {
  52         DBG("data %p", data);
  53
  54         agent_free();
  55 }
  56
  57 int __connman_agent_register(const char *sender, const char *path)
  58 {
  59         DBG("sender %s path %s", sender, path);
  60
  61         if (agent_path != NULL)
  62                 return -EEXIST;
  63
  64         agent_sender = g_strdup(sender);
  65         agent_path = g_strdup(path);
  66
  67         agent_watch = g_dbus_add_disconnect_watch(connection, sender,
  68                                                 agent_disconnect, NULL, NULL);
  69
  70         return 0;
  71 }
  72
  73 int __connman_agent_unregister(const char *sender, const char *path)
  74 {
  75         DBG("sender %s path %s", sender, path);
  76
  77         if (agent_path == NULL)
  78                 return -ESRCH;
  79
  80         if (agent_watch > 0)
  81                 g_dbus_remove_watch(connection, agent_watch);
  82
  83         agent_free();
  84
  85         return 0;
  86 }
  87
  88 struct request_input_reply {
  89         struct connman_service *service;
  90         authentication_cb_t callback;
  91         void *user_data;
  92 };
  93
  94 static void request_input_passphrase_reply(DBusPendingCall *call, void *user_data)
  95 {
  96         struct request_input_reply *passphrase_reply = user_data;
  97         connman_bool_t values_received = FALSE;
  98         connman_bool_t wps = FALSE;
  99         char *identity = NULL;
 100         char *passphrase = NULL;
 101         char *wpspin = NULL;
 102         char *key;
 103         char *name = NULL;
 104         int name_len = 0;
 105         DBusMessageIter iter, dict;
 106         DBusMessage *reply = dbus_pending_call_steal_reply(call);
 107
 108         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
 109                 goto done;
 110
 111         values_received = TRUE;
 112
 113         dbus_message_iter_init(reply, &iter);
 114         dbus_message_iter_recurse(&iter, &dict);
 115         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
 116                 DBusMessageIter entry, value;
 117
 118                 dbus_message_iter_recurse(&dict, &entry);
 119                 if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_STRING)
 120                         break;
 121
 122                 dbus_message_iter_get_basic(&entry, &key);
 123
 124                 if (g_str_equal(key, "Identity")) {
 125                         dbus_message_iter_next(&entry);
 126                         if (dbus_message_iter_get_arg_type(&entry)
 127                                                         != DBUS_TYPE_VARIANT)
 128                                 break;
 129                         dbus_message_iter_recurse(&entry, &value);
 130                         dbus_message_iter_get_basic(&value, &identity);
 131
 132                 } else if (g_str_equal(key, "Passphrase")) {
 133                         dbus_message_iter_next(&entry);
 134                         if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_VARIANT)
 135                                 break;
 136                         dbus_message_iter_recurse(&entry, &value);
 137                         dbus_message_iter_get_basic(&value, &passphrase);
 138
 139                 } else if (g_str_equal(key, "WPS")) {
 140                         wps = TRUE;
 141
 142                         dbus_message_iter_next(&entry);
 143                         if (dbus_message_iter_get_arg_type(&entry)
 144                                                         != DBUS_TYPE_VARIANT)
 145                                 break;
 146                         dbus_message_iter_recurse(&entry, &value);
 147                         dbus_message_iter_get_basic(&value, &wpspin);
 148                         break;
 149                 } else if (g_str_equal(key, "Name")) {
 150                         dbus_message_iter_next(&entry);
 151                         if (dbus_message_iter_get_arg_type(&entry)
 152                                                         != DBUS_TYPE_VARIANT)
 153                                 break;
 154                         dbus_message_iter_recurse(&entry, &value);
 155                         dbus_message_iter_get_basic(&value, &name);
 156                         name_len = strlen(name);
 157                 } else if (g_str_equal(key, "SSID")) {
 158                         dbus_message_iter_next(&entry);
 159                         if (dbus_message_iter_get_arg_type(&entry)
 160                                                         != DBUS_TYPE_VARIANT)
 161                                 break;
 162                         dbus_message_iter_recurse(&entry, &value);
 163                         if (dbus_message_iter_get_arg_type(&value)
 164                                                         != DBUS_TYPE_VARIANT)
 165                                 break;
 166                         if (dbus_message_iter_get_element_type(&value)
 167                                                         != DBUS_TYPE_VARIANT)
 168                                 break;
 169                         dbus_message_iter_get_fixed_array(&value, &name,
 170                                                         &name_len);
 171                 }
 172                 dbus_message_iter_next(&dict);
 173         }
 174
 175         if (wps == TRUE) {
 176                 struct connman_network *network;
 177
 178                 network = __connman_service_get_network(
 179                                                 passphrase_reply->service);
 180                 if (network == NULL)
 181                         goto done;
 182
 183                 connman_network_set_bool(network, "WiFi.UseWPS", wps);
 184
 185                 if (wpspin != NULL && strlen(wpspin) > 0)
 186                         connman_network_set_string(network,
 187                                                 "WiFi.PinWPS", wpspin);
 188                 else
 189                         connman_network_set_string(network,
 190                                                 "WiFi.PinWPS", NULL);
 191         }
 192
 193 done:
 194         passphrase_reply->callback(passphrase_reply->service, values_received,
 195                                 name, name_len,
 196                                 identity, passphrase,
 197                                 passphrase_reply->user_data);
 198         connman_service_unref(passphrase_reply->service);
 199         dbus_message_unref(reply);
 200         g_free(passphrase_reply);
 201 }
 202
 203 static void request_input_append_alternates(DBusMessageIter *iter,
 204                                                         void *user_data)
 205 {
 206         const char *str = user_data;
 207         char **alternates, **alternative;
 208
 209         if (str == NULL)
 210                 return;
 211
 212         alternates = g_strsplit(str, ",", 0);
 213         if (alternates == NULL)
 214                 return;
 215
 216         for (alternative = alternates; *alternative != NULL; alternative++)
 217                 dbus_message_iter_append_basic(iter, DBUS_TYPE_STRING,
 218                                                                 alternative);
 219
 220         g_strfreev(alternates);
 221 }
 222
 223 static void request_input_append_identity(DBusMessageIter *iter,
 224                                                         void *user_data)
 225 {
 226         char *str = "string";
 227
 228         connman_dbus_dict_append_basic(iter, "Type",
 229                                 DBUS_TYPE_STRING, &str);
 230         str = "mandatory";
 231         connman_dbus_dict_append_basic(iter, "Requirement",
 232                                 DBUS_TYPE_STRING, &str);
 233 }
 234
 235 static void request_input_append_passphrase(DBusMessageIter *iter,
 236                                                         void *user_data)
 237 {
 238         struct connman_service *service = user_data;
 239         char *value;
 240         const char *phase2;
 241
 242         switch (__connman_service_get_security(service)) {
 243         case CONNMAN_SERVICE_SECURITY_WEP:
 244                 value = "wep";
 245                 break;
 246         case CONNMAN_SERVICE_SECURITY_PSK:
 247                 value = "psk";
 248                 break;
 249         case CONNMAN_SERVICE_SECURITY_8021X:
 250                 phase2 = __connman_service_get_phase2(service);
 251
 252                 if (phase2 != NULL && (
 253                                 g_str_has_suffix(phase2, "GTC") == TRUE ||
 254                                 g_str_has_suffix(phase2, "OTP") == TRUE))
 255                         value = "response";
 256                 else
 257                         value = "passphrase";
 258
 259                 break;
 260         default:
 261                 value = "string";
 262                 break;
 263         }
 264         connman_dbus_dict_append_basic(iter, "Type",
 265                                 DBUS_TYPE_STRING, &value);
 266         value = "mandatory";
 267         connman_dbus_dict_append_basic(iter, "Requirement",
 268                                 DBUS_TYPE_STRING, &value);
 269
 270         if (__connman_service_wps_enabled(service) == TRUE) {
 271                 connman_dbus_dict_append_array(iter, "Alternates",
 272                                         DBUS_TYPE_STRING,
 273                                         request_input_append_alternates,
 274                                         "WPS");
 275         }
 276 }
 277
 278 static void request_input_append_wps(DBusMessageIter *iter, void *user_data)
 279 {
 280         const char *str = "wpspin";
 281
 282         connman_dbus_dict_append_basic(iter, "Type",
 283                                 DBUS_TYPE_STRING, &str);
 284         str = "alternate";
 285         connman_dbus_dict_append_basic(iter, "Requirement",
 286                                 DBUS_TYPE_STRING, &str);
 287 }
 288
 289 static void request_input_append_name(DBusMessageIter *iter, void *user_data)
 290 {
 291         const char *str = "string";
 292
 293         connman_dbus_dict_append_basic(iter, "Type",
 294                                 DBUS_TYPE_STRING, &str);
 295         str = "mandatory";
 296         connman_dbus_dict_append_basic(iter, "Requirement",
 297                                 DBUS_TYPE_STRING, &str);
 298         connman_dbus_dict_append_array(iter, "Alternates",
 299                                 DBUS_TYPE_STRING,
 300                                 request_input_append_alternates,
 301                                 "SSID");
 302 }
 303
 304 static void request_input_append_ssid(DBusMessageIter *iter, void *user_data)
 305 {
 306         const char *str = "ssid";
 307
 308         connman_dbus_dict_append_basic(iter, "Type",
 309                                 DBUS_TYPE_STRING, &str);
 310         str = "alternate";
 311         connman_dbus_dict_append_basic(iter, "Requirement",
 312                                 DBUS_TYPE_STRING, &str);
 313 }
 314
 315 static void request_input_append_password(DBusMessageIter *iter,
 316                                                         void *user_data)
 317 {
 318         char *str = "passphrase";
 319
 320         connman_dbus_dict_append_basic(iter, "Type",
 321                                 DBUS_TYPE_STRING, &str);
 322         str = "mandatory";
 323         connman_dbus_dict_append_basic(iter, "Requirement",
 324                                 DBUS_TYPE_STRING, &str);
 325 }
 326
 327 static void request_input_login_reply(DBusPendingCall *call, void *user_data)
 328 {
 329         struct request_input_reply *username_password_reply = user_data;
 330         char *username = NULL;
 331         char *password = NULL;
 332         char *key;
 333         DBusMessageIter iter, dict;
 334         DBusMessage *reply = dbus_pending_call_steal_reply(call);
 335
 336         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
 337                 goto done;
 338
 339         dbus_message_iter_init(reply, &iter);
 340         dbus_message_iter_recurse(&iter, &dict);
 341         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
 342                 DBusMessageIter entry, value;
 343
 344                 dbus_message_iter_recurse(&dict, &entry);
 345                 if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_STRING)
 346                         break;
 347
 348                 dbus_message_iter_get_basic(&entry, &key);
 349
 350                 if (g_str_equal(key, "Username")) {
 351                         dbus_message_iter_next(&entry);
 352                         if (dbus_message_iter_get_arg_type(&entry)
 353                                                         != DBUS_TYPE_VARIANT)
 354                                 break;
 355                         dbus_message_iter_recurse(&entry, &value);
 356                         dbus_message_iter_get_basic(&value, &username);
 357
 358                 } else if (g_str_equal(key, "Password")) {
 359                         dbus_message_iter_next(&entry);
 360                         if (dbus_message_iter_get_arg_type(&entry) !=
 361                                                         DBUS_TYPE_VARIANT)
 362                                 break;
 363                         dbus_message_iter_recurse(&entry, &value);
 364                         dbus_message_iter_get_basic(&value, &password);
 365                 }
 366
 367                 dbus_message_iter_next(&dict);
 368         }
 369
 370 done:
 371         username_password_reply->callback(username_password_reply->service,
 372                                         TRUE, NULL, 0,
 373                                         username, password,
 374                                         username_password_reply->user_data);
 375         connman_service_unref(username_password_reply->service);
 376         dbus_message_unref(reply);
 377         g_free(username_password_reply);
 378 }
 379
 380 int __connman_agent_request_passphrase_input(struct connman_service *service,
 381                                 authentication_cb_t callback, void *user_data)
 382 {
 383         DBusMessage *message;
 384         const char *path;
 385         DBusMessageIter iter;
 386         DBusMessageIter dict;
 387         DBusPendingCall *call;
 388         struct request_input_reply *passphrase_reply;
 389
 390         if (service == NULL || agent_path == NULL || callback == NULL)
 391                 return -ESRCH;
 392
 393         message = dbus_message_new_method_call(agent_sender, agent_path,
 394                                         CONNMAN_AGENT_INTERFACE,
 395                                         "RequestInput");
 396         if (message == NULL)
 397                 return -ENOMEM;
 398
 399         dbus_message_iter_init_append(message, &iter);
 400
 401         path = __connman_service_get_path(service);
 402         dbus_message_iter_append_basic(&iter,
 403                                 DBUS_TYPE_OBJECT_PATH, &path);
 404
 405         connman_dbus_dict_open(&iter, &dict);
 406
 407         if (__connman_service_is_hidden(service)) {
 408                 connman_dbus_dict_append_dict(&dict, "Name",
 409                                         request_input_append_name, NULL);
 410                 connman_dbus_dict_append_dict(&dict, "SSID",
 411                                         request_input_append_ssid, NULL);
 412         }
 413
 414         if (__connman_service_get_security(service) ==
 415                         CONNMAN_SERVICE_SECURITY_8021X) {
 416                 connman_dbus_dict_append_dict(&dict, "Identity",
 417                                         request_input_append_identity, service);
 418         }
 419
 420         connman_dbus_dict_append_dict(&dict, "Passphrase",
 421                                 request_input_append_passphrase, service);
 422
 423         if (__connman_service_wps_enabled(service) == TRUE) {
 424             connman_dbus_dict_append_dict(&dict, "WPS",
 425                                 request_input_append_wps, NULL);
 426         }
 427
 428         connman_dbus_dict_close(&iter, &dict);
 429
 430         passphrase_reply = g_try_new0(struct request_input_reply, 1);
 431         if (passphrase_reply == NULL) {
 432                 dbus_message_unref(message);
 433                 return -ENOMEM;
 434         }
 435
 436         if (dbus_connection_send_with_reply(connection, message,
 437                                                 &call, -1) == FALSE) {
 438                 dbus_message_unref(message);
 439                 g_free(passphrase_reply);
 440                 return -ESRCH;
 441         }
 442
 443         if (call == NULL) {
 444                 dbus_message_unref(message);
 445                 g_free(passphrase_reply);
 446                 return -ESRCH;
 447         }
 448
 449         passphrase_reply->service = connman_service_ref(service);
 450         passphrase_reply->callback = callback;
 451         passphrase_reply->user_data = user_data;
 452
 453         dbus_pending_call_set_notify(call, request_input_passphrase_reply,
 454                                 passphrase_reply, NULL);
 455
 456         dbus_message_unref(message);
 457
 458         return -EIO;
 459 }
 460
 461 int __connman_agent_request_login_input(struct connman_service *service,
 462                                 authentication_cb_t callback, void *user_data)
 463 {
 464         DBusMessage *message;
 465         const char *path;
 466         DBusMessageIter iter;
 467         DBusMessageIter dict;
 468         DBusPendingCall *call;
 469         struct request_input_reply *username_password_reply;
 470
 471         if (service == NULL || agent_path == NULL || callback == NULL)
 472                 return -ESRCH;
 473
 474         message = dbus_message_new_method_call(agent_sender, agent_path,
 475                                         CONNMAN_AGENT_INTERFACE,
 476                                         "RequestInput");
 477         if (message == NULL)
 478                 return -ENOMEM;
 479
 480         dbus_message_iter_init_append(message, &iter);
 481
 482         path = __connman_service_get_path(service);
 483         dbus_message_iter_append_basic(&iter,
 484                                 DBUS_TYPE_OBJECT_PATH, &path);
 485
 486         connman_dbus_dict_open(&iter, &dict);
 487
 488         connman_dbus_dict_append_dict(&dict, "Username",
 489                                 request_input_append_identity, service);
 490
 491         connman_dbus_dict_append_dict(&dict, "Password",
 492                                 request_input_append_password, service);
 493
 494         connman_dbus_dict_close(&iter, &dict);
 495
 496         username_password_reply = g_try_new0(struct request_input_reply, 1);
 497         if (username_password_reply == NULL) {
 498                 dbus_message_unref(message);
 499                 return -ENOMEM;
 500         }
 501
 502         if (dbus_connection_send_with_reply(connection, message,
 503                                                         &call, -1) == FALSE) {
 504                 dbus_message_unref(message);
 505                 g_free(username_password_reply);
 506                 return -ESRCH;
 507         }
 508
 509         if (call == NULL) {
 510                 dbus_message_unref(message);
 511                 g_free(username_password_reply);
 512                 return -ESRCH;
 513         }
 514
 515         username_password_reply->service = connman_service_ref(service);
 516         username_password_reply->callback = callback;
 517         username_password_reply->user_data = user_data;
 518
 519         dbus_pending_call_set_notify(call, request_input_login_reply,
 520                                                 username_password_reply, NULL);
 521
 522         dbus_message_unref(message);
 523
 524         return -EIO;
 525 }
 526
 527 struct report_error_data {
 528         struct connman_service *service;
 529         report_error_cb_t callback;
 530         void *user_data;
 531 };
 532
 533 static void report_error_reply(DBusPendingCall *call, void *user_data)
 534 {
 535         struct report_error_data *report_error = user_data;
 536         DBusMessage *reply = dbus_pending_call_steal_reply(call);
 537         gboolean retry = FALSE;
 538         const char *dbus_err;
 539
 540         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
 541                 dbus_err = dbus_message_get_error_name(reply);
 542                 if (dbus_err != NULL &&
 543                         strcmp(dbus_err,
 544                                 CONNMAN_AGENT_INTERFACE ".Error.Retry") == 0)
 545                         retry = TRUE;
 546         }
 547
 548         report_error->callback(report_error->service, retry,
 549                         report_error->user_data);
 550         connman_service_unref(report_error->service);
 551         g_free(report_error);
 552         dbus_message_unref(reply);
 553 }
 554
 555 int __connman_agent_report_error(struct connman_service *service,
 556                                 const char *error,
 557                                 report_error_cb_t callback, void *user_data)
 558 {
 559         DBusMessage *message;
 560         DBusMessageIter iter;
 561         const char *path;
 562         struct report_error_data *report_error;
 563         DBusPendingCall *call;
 564
 565         if (service == NULL || agent_path == NULL || error == NULL ||
 566                 callback == NULL)
 567                 return -ESRCH;
 568
 569         message = dbus_message_new_method_call(agent_sender, agent_path,
 570                                         CONNMAN_AGENT_INTERFACE,
 571                                         "ReportError");
 572         if (message == NULL)
 573                 return -ENOMEM;
 574
 575         dbus_message_iter_init_append(message, &iter);
 576
 577         path = __connman_service_get_path(service);
 578         dbus_message_iter_append_basic(&iter,
 579                                 DBUS_TYPE_OBJECT_PATH, &path);
 580         dbus_message_iter_append_basic(&iter,
 581                                 DBUS_TYPE_STRING, &error);
 582
 583         report_error = g_try_new0(struct report_error_data, 1);
 584         if (report_error == NULL) {
 585                 dbus_message_unref(message);
 586                 return -ENOMEM;
 587         }
 588
 589         if (dbus_connection_send_with_reply(connection, message,
 590                                                 &call, -1) == FALSE) {
 591                 dbus_message_unref(message);
 592                 g_free(report_error);
 593                 return -ESRCH;
 594         }
 595
 596         if (call == NULL) {
 597                 dbus_message_unref(message);
 598                 g_free(report_error);
 599                 return -ESRCH;
 600         }
 601
 602         report_error->service = connman_service_ref(service);
 603         report_error->callback = callback;
 604         report_error->user_data = user_data;
 605         dbus_pending_call_set_notify(call, report_error_reply,
 606                                 report_error, NULL);
 607         dbus_message_unref(message);
 608
 609         return -EIO;
 610 }
 611
 612 int __connman_agent_init(void)
 613 {
 614         DBG("");
 615
 616         connection = connman_dbus_get_connection();
 617         if (connection == NULL)
 618                 return -1;
 619
 620         return 0;
 621 }
 622
 623 void __connman_agent_cleanup(void)
 624 {
 625         DBusMessage *message;
 626
 627         DBG("");
 628
 629         if (connection == NULL)
 630                 return;
 631
 632         if (agent_watch > 0)
 633                 g_dbus_remove_watch(connection, agent_watch);
 634
 635         if (agent_path == NULL)
 636                 return;
 637
 638         message = dbus_message_new_method_call(agent_sender, agent_path,
 639                                         CONNMAN_AGENT_INTERFACE, "Release");
 640         if (message == NULL)
 641                 return;
 642
 643         dbus_message_set_no_reply(message, TRUE);
 644
 645         g_dbus_send_message(connection, message);
 646
 647         agent_free();
 648
 649         dbus_connection_unref(connection);
 650 }