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         DBusMessageIter iter, dict;
 104         DBusMessage *reply = dbus_pending_call_steal_reply(call);
 105
 106         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
 107                 goto done;
 108
 109         values_received = TRUE;
 110
 111         dbus_message_iter_init(reply, &iter);
 112         dbus_message_iter_recurse(&iter, &dict);
 113         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
 114                 DBusMessageIter entry, value;
 115
 116                 dbus_message_iter_recurse(&dict, &entry);
 117                 if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_STRING)
 118                         break;
 119
 120                 dbus_message_iter_get_basic(&entry, &key);
 121
 122                 if (g_str_equal(key, "Identity")) {
 123                         dbus_message_iter_next(&entry);
 124                         if (dbus_message_iter_get_arg_type(&entry)
 125                                                         != DBUS_TYPE_VARIANT)
 126                                 break;
 127                         dbus_message_iter_recurse(&entry, &value);
 128                         dbus_message_iter_get_basic(&value, &identity);
 129
 130                 } else if (g_str_equal(key, "Passphrase")) {
 131                         dbus_message_iter_next(&entry);
 132                         if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_VARIANT)
 133                                 break;
 134                         dbus_message_iter_recurse(&entry, &value);
 135                         dbus_message_iter_get_basic(&value, &passphrase);
 136
 137                 } else if (g_str_equal(key, "WPS")) {
 138                         wps = TRUE;
 139
 140                         dbus_message_iter_next(&entry);
 141                         if (dbus_message_iter_get_arg_type(&entry)
 142                                                         != DBUS_TYPE_VARIANT)
 143                                 break;
 144                         dbus_message_iter_recurse(&entry, &value);
 145                         dbus_message_iter_get_basic(&value, &wpspin);
 146                         break;
 147                 }
 148                 dbus_message_iter_next(&dict);
 149         }
 150
 151         if (wps == TRUE) {
 152                 struct connman_network *network;
 153
 154                 network = __connman_service_get_network(
 155                                                 passphrase_reply->service);
 156                 if (network == NULL)
 157                         goto done;
 158
 159                 connman_network_set_bool(network, "WiFi.UseWPS", wps);
 160
 161                 if (wpspin != NULL && strlen(wpspin) > 0)
 162                         connman_network_set_string(network,
 163                                                 "WiFi.PinWPS", wpspin);
 164                 else
 165                         connman_network_set_string(network,
 166                                                 "WiFi.PinWPS", NULL);
 167         }
 168
 169 done:
 170         passphrase_reply->callback(passphrase_reply->service, values_received,
 171                                 identity, passphrase,
 172                                 passphrase_reply->user_data);
 173         connman_service_unref(passphrase_reply->service);
 174         dbus_message_unref(reply);
 175         g_free(passphrase_reply);
 176 }
 177
 178 static void request_input_append_alternates(DBusMessageIter *iter,
 179                                                         void *user_data)
 180 {
 181         const char *str = user_data;
 182         char **alternates, **alternative;
 183
 184         if (str == NULL)
 185                 return;
 186
 187         alternates = g_strsplit(str, ",", 0);
 188         if (alternates == NULL)
 189                 return;
 190
 191         for (alternative = alternates; *alternative != NULL; alternative++)
 192                 dbus_message_iter_append_basic(iter, DBUS_TYPE_STRING,
 193                                                                 alternative);
 194
 195         g_strfreev(alternates);
 196 }
 197
 198 static void request_input_append_identity(DBusMessageIter *iter,
 199                                                         void *user_data)
 200 {
 201         char *str = "string";
 202
 203         connman_dbus_dict_append_basic(iter, "Type",
 204                                 DBUS_TYPE_STRING, &str);
 205         str = "Mandatory";
 206         connman_dbus_dict_append_basic(iter, "Requirement",
 207                                 DBUS_TYPE_STRING, &str);
 208 }
 209
 210 static void request_input_append_passphrase(DBusMessageIter *iter,
 211                                                         void *user_data)
 212 {
 213         struct connman_service *service = user_data;
 214         char *value;
 215         const char *phase2;
 216
 217         switch (__connman_service_get_security(service)) {
 218         case CONNMAN_SERVICE_SECURITY_WEP:
 219                 value = "wep";
 220                 break;
 221         case CONNMAN_SERVICE_SECURITY_PSK:
 222                 value = "psk";
 223                 break;
 224         case CONNMAN_SERVICE_SECURITY_8021X:
 225                 phase2 = __connman_service_get_phase2(service);
 226
 227                 if (phase2 != NULL && (
 228                                 g_str_has_suffix(phase2, "GTC") == TRUE ||
 229                                 g_str_has_suffix(phase2, "OTP") == TRUE))
 230                         value = "response";
 231                 else
 232                         value = "passphrase";
 233
 234                 break;
 235         default:
 236                 value = "string";
 237                 break;
 238         }
 239         connman_dbus_dict_append_basic(iter, "Type",
 240                                 DBUS_TYPE_STRING, &value);
 241         value = "Mandatory";
 242         connman_dbus_dict_append_basic(iter, "Requirement",
 243                                 DBUS_TYPE_STRING, &value);
 244
 245         if (__connman_service_wps_enabled(service) == TRUE) {
 246                 connman_dbus_dict_append_array(iter, "Alternates",
 247                                         DBUS_TYPE_STRING,
 248                                         request_input_append_alternates,
 249                                         "WPS");
 250         }
 251 }
 252
 253 static void request_input_append_wps(DBusMessageIter *iter, void *user_data)
 254 {
 255         const char *str = "wpspin";
 256
 257         connman_dbus_dict_append_basic(iter, "Type",
 258                                 DBUS_TYPE_STRING, &str);
 259         str = "alternate";
 260         connman_dbus_dict_append_basic(iter, "Requirement",
 261                                 DBUS_TYPE_STRING, &str);
 262 }
 263
 264 static void request_input_append_password(DBusMessageIter *iter,
 265                                                         void *user_data)
 266 {
 267         char *str = "passphrase";
 268
 269         connman_dbus_dict_append_basic(iter, "Type",
 270                                 DBUS_TYPE_STRING, &str);
 271         str = "Mandatory";
 272         connman_dbus_dict_append_basic(iter, "Requirement",
 273                                 DBUS_TYPE_STRING, &str);
 274 }
 275
 276 static void request_input_login_reply(DBusPendingCall *call, void *user_data)
 277 {
 278         struct request_input_reply *username_password_reply = user_data;
 279         char *username = NULL;
 280         char *password = NULL;
 281         char *key;
 282         DBusMessageIter iter, dict;
 283         DBusMessage *reply = dbus_pending_call_steal_reply(call);
 284
 285         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
 286                 goto done;
 287
 288         dbus_message_iter_init(reply, &iter);
 289         dbus_message_iter_recurse(&iter, &dict);
 290         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
 291                 DBusMessageIter entry, value;
 292
 293                 dbus_message_iter_recurse(&dict, &entry);
 294                 if (dbus_message_iter_get_arg_type(&entry) != DBUS_TYPE_STRING)
 295                         break;
 296
 297                 dbus_message_iter_get_basic(&entry, &key);
 298
 299                 if (g_str_equal(key, "Username")) {
 300                         dbus_message_iter_next(&entry);
 301                         if (dbus_message_iter_get_arg_type(&entry)
 302                                                         != DBUS_TYPE_VARIANT)
 303                                 break;
 304                         dbus_message_iter_recurse(&entry, &value);
 305                         dbus_message_iter_get_basic(&value, &username);
 306
 307                 } else if (g_str_equal(key, "Password")) {
 308                         dbus_message_iter_next(&entry);
 309                         if (dbus_message_iter_get_arg_type(&entry) !=
 310                                                         DBUS_TYPE_VARIANT)
 311                                 break;
 312                         dbus_message_iter_recurse(&entry, &value);
 313                         dbus_message_iter_get_basic(&value, &password);
 314                 }
 315
 316                 dbus_message_iter_next(&dict);
 317         }
 318
 319 done:
 320         username_password_reply->callback(username_password_reply->service,
 321                                         TRUE,
 322                                         username, password,
 323                                         username_password_reply->user_data);
 324         connman_service_unref(username_password_reply->service);
 325         dbus_message_unref(reply);
 326         g_free(username_password_reply);
 327 }
 328
 329 int __connman_agent_request_passphrase_input(struct connman_service *service,
 330                                 authentication_cb_t callback, void *user_data)
 331 {
 332         DBusMessage *message;
 333         const char *path;
 334         DBusMessageIter iter;
 335         DBusMessageIter dict;
 336         DBusPendingCall *call;
 337         struct request_input_reply *passphrase_reply;
 338
 339         if (service == NULL || agent_path == NULL || callback == NULL)
 340                 return -ESRCH;
 341
 342         message = dbus_message_new_method_call(agent_sender, agent_path,
 343                                         CONNMAN_AGENT_INTERFACE,
 344                                         "RequestInput");
 345         if (message == NULL)
 346                 return -ENOMEM;
 347
 348         dbus_message_iter_init_append(message, &iter);
 349
 350         path = __connman_service_get_path(service);
 351         dbus_message_iter_append_basic(&iter,
 352                                 DBUS_TYPE_OBJECT_PATH, &path);
 353
 354         connman_dbus_dict_open(&iter, &dict);
 355
 356         if (__connman_service_get_security(service) ==
 357                         CONNMAN_SERVICE_SECURITY_8021X) {
 358                 connman_dbus_dict_append_dict(&dict, "Identity",
 359                                         request_input_append_identity, service);
 360         }
 361
 362         connman_dbus_dict_append_dict(&dict, "Passphrase",
 363                                 request_input_append_passphrase, service);
 364
 365         if (__connman_service_wps_enabled(service) == TRUE) {
 366             connman_dbus_dict_append_dict(&dict, "WPS",
 367                                 request_input_append_wps, NULL);
 368         }
 369
 370         connman_dbus_dict_close(&iter, &dict);
 371
 372         passphrase_reply = g_try_new0(struct request_input_reply, 1);
 373         if (passphrase_reply == NULL) {
 374                 dbus_message_unref(message);
 375                 return -ENOMEM;
 376         }
 377
 378         if (dbus_connection_send_with_reply(connection, message,
 379                                                 &call, -1) == FALSE) {
 380                 dbus_message_unref(message);
 381                 g_free(passphrase_reply);
 382                 return -ESRCH;
 383         }
 384
 385         if (call == NULL) {
 386                 dbus_message_unref(message);
 387                 g_free(passphrase_reply);
 388                 return -ESRCH;
 389         }
 390
 391         passphrase_reply->service = connman_service_ref(service);
 392         passphrase_reply->callback = callback;
 393         passphrase_reply->user_data = user_data;
 394
 395         dbus_pending_call_set_notify(call, request_input_passphrase_reply,
 396                                 passphrase_reply, NULL);
 397
 398         dbus_message_unref(message);
 399
 400         return -EIO;
 401 }
 402
 403 int __connman_agent_request_login_input(struct connman_service *service,
 404                                 authentication_cb_t callback, void *user_data)
 405 {
 406         DBusMessage *message;
 407         const char *path;
 408         DBusMessageIter iter;
 409         DBusMessageIter dict;
 410         DBusPendingCall *call;
 411         struct request_input_reply *username_password_reply;
 412
 413         if (service == NULL || agent_path == NULL || callback == NULL)
 414                 return -ESRCH;
 415
 416         message = dbus_message_new_method_call(agent_sender, agent_path,
 417                                         CONNMAN_AGENT_INTERFACE,
 418                                         "RequestInput");
 419         if (message == NULL)
 420                 return -ENOMEM;
 421
 422         dbus_message_iter_init_append(message, &iter);
 423
 424         path = __connman_service_get_path(service);
 425         dbus_message_iter_append_basic(&iter,
 426                                 DBUS_TYPE_OBJECT_PATH, &path);
 427
 428         connman_dbus_dict_open(&iter, &dict);
 429
 430         connman_dbus_dict_append_dict(&dict, "Username",
 431                                 request_input_append_identity, service);
 432
 433         connman_dbus_dict_append_dict(&dict, "Password",
 434                                 request_input_append_password, service);
 435
 436         connman_dbus_dict_close(&iter, &dict);
 437
 438         username_password_reply = g_try_new0(struct request_input_reply, 1);
 439         if (username_password_reply == NULL) {
 440                 dbus_message_unref(message);
 441                 return -ENOMEM;
 442         }
 443
 444         if (dbus_connection_send_with_reply(connection, message,
 445                                                         &call, -1) == FALSE) {
 446                 dbus_message_unref(message);
 447                 g_free(username_password_reply);
 448                 return -ESRCH;
 449         }
 450
 451         if (call == NULL) {
 452                 dbus_message_unref(message);
 453                 g_free(username_password_reply);
 454                 return -ESRCH;
 455         }
 456
 457         username_password_reply->service = connman_service_ref(service);
 458         username_password_reply->callback = callback;
 459         username_password_reply->user_data = user_data;
 460
 461         dbus_pending_call_set_notify(call, request_input_login_reply,
 462                                                 username_password_reply, NULL);
 463
 464         dbus_message_unref(message);
 465
 466         return -EIO;
 467 }
 468
 469 struct report_error_data {
 470         struct connman_service *service;
 471         report_error_cb_t callback;
 472         void *user_data;
 473 };
 474
 475 static void report_error_reply(DBusPendingCall *call, void *user_data)
 476 {
 477         struct report_error_data *report_error = user_data;
 478         DBusMessage *reply = dbus_pending_call_steal_reply(call);
 479         gboolean retry = FALSE;
 480         const char *dbus_err;
 481
 482         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
 483                 dbus_err = dbus_message_get_error_name(reply);
 484                 if (dbus_err != NULL &&
 485                         strcmp(dbus_err,
 486                                 CONNMAN_AGENT_INTERFACE ".Error.Retry") == 0)
 487                         retry = TRUE;
 488         }
 489
 490         report_error->callback(report_error->service, retry,
 491                         report_error->user_data);
 492         connman_service_unref(report_error->service);
 493         g_free(report_error);
 494         dbus_message_unref(reply);
 495 }
 496
 497 int __connman_agent_report_error(struct connman_service *service,
 498                                 const char *error,
 499                                 report_error_cb_t callback, void *user_data)
 500 {
 501         DBusMessage *message;
 502         DBusMessageIter iter;
 503         const char *path;
 504         struct report_error_data *report_error;
 505         DBusPendingCall *call;
 506
 507         if (service == NULL || agent_path == NULL || error == NULL ||
 508                 callback == NULL)
 509                 return -ESRCH;
 510
 511         message = dbus_message_new_method_call(agent_sender, agent_path,
 512                                         CONNMAN_AGENT_INTERFACE,
 513                                         "ReportError");
 514         if (message == NULL)
 515                 return -ENOMEM;
 516
 517         dbus_message_iter_init_append(message, &iter);
 518
 519         path = __connman_service_get_path(service);
 520         dbus_message_iter_append_basic(&iter,
 521                                 DBUS_TYPE_OBJECT_PATH, &path);
 522         dbus_message_iter_append_basic(&iter,
 523                                 DBUS_TYPE_STRING, &error);
 524
 525         report_error = g_try_new0(struct report_error_data, 1);
 526         if (report_error == NULL) {
 527                 dbus_message_unref(message);
 528                 return -ENOMEM;
 529         }
 530
 531         if (dbus_connection_send_with_reply(connection, message,
 532                                                 &call, -1) == FALSE) {
 533                 dbus_message_unref(message);
 534                 g_free(report_error);
 535                 return -ESRCH;
 536         }
 537
 538         if (call == NULL) {
 539                 dbus_message_unref(message);
 540                 g_free(report_error);
 541                 return -ESRCH;
 542         }
 543
 544         report_error->service = connman_service_ref(service);
 545         report_error->callback = callback;
 546         report_error->user_data = user_data;
 547         dbus_pending_call_set_notify(call, report_error_reply,
 548                                 report_error, NULL);
 549         dbus_message_unref(message);
 550
 551         return -EIO;
 552 }
 553
 554 int __connman_agent_init(void)
 555 {
 556         DBG("");
 557
 558         connection = connman_dbus_get_connection();
 559         if (connection == NULL)
 560                 return -1;
 561
 562         return 0;
 563 }
 564
 565 void __connman_agent_cleanup(void)
 566 {
 567         DBusMessage *message;
 568
 569         DBG("");
 570
 571         if (connection == NULL)
 572                 return;
 573
 574         if (agent_watch > 0)
 575                 g_dbus_remove_watch(connection, agent_watch);
 576
 577         if (agent_path == NULL)
 578                 return;
 579
 580         message = dbus_message_new_method_call(agent_sender, agent_path,
 581                                         CONNMAN_AGENT_INTERFACE, "Release");
 582         if (message == NULL)
 583                 return;
 584
 585         dbus_message_set_no_reply(message, TRUE);
 586
 587         g_dbus_send_message(connection, message);
 588
 589         agent_free();
 590
 591         dbus_connection_unref(connection);
 592 }