src/wifi-agent.c

   1 /*
   2  * Network Configuration Module
   3  *
   4  * Copyright (c) 2000 - 2012 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  * http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  *
  18  */
  19
  20 #include <stdio.h>
  21 #include <vconf.h>
  22 #include <stdlib.h>
  23 #include <unistd.h>
  24 #include <vconf-keys.h>
  25
  26 #include "log.h"
  27 #include "util.h"
  28 #include "wifi.h"
  29 #include "netdbus.h"
  30 #include "wifi-agent.h"
  31 #include "wifi-state.h"
  32 #include "wifi-eap-config.h"
  33 #include "network-state.h"
  34 #include "network-accessibility.h"
  35
  36 #define NETCONFIG_AGENT_FIELD_NAME                              "Name"
  37 #define NETCONFIG_AGENT_FIELD_SSID                              "SSID"
  38 #define NETCONFIG_AGENT_FIELD_IDENTITY                  "Identity"
  39 #define NETCONFIG_AGENT_FIELD_PASSPHRASE                "Passphrase"
  40 #define NETCONFIG_AGENT_FIELD_WPS                               "WPS"
  41 #define NETCONFIG_AGENT_FIELD_WPS_PBC                   "WPS_PBC"
  42 #define NETCONFIG_AGENT_FIELD_WPS_PIN                   "WPS_PIN"
  43
  44 #define NETCONFIG_AGENT_ERR_CONNECT_FAILED              "connect-failed"
  45
  46 struct netconfig_wifi_agent {
  47         GByteArray *ssid;
  48         char *name;
  49         char *identity;
  50         char *passphrase;
  51         char *wps_pin;
  52         gboolean wps_pbc;
  53 };
  54
  55 static struct netconfig_wifi_agent agent;
  56
  57 static void __netconfig_agent_clear_fields(void)
  58 {
  59         if (agent.ssid)
  60                 g_byte_array_free(agent.ssid, TRUE);
  61         g_free(agent.name);
  62         g_free(agent.identity);
  63         g_free(agent.passphrase);
  64         g_free(agent.wps_pin);
  65
  66         agent.ssid = NULL;
  67         agent.name = NULL;
  68         agent.identity = NULL;
  69         agent.passphrase = NULL;
  70         agent.wps_pin = NULL;
  71         agent.wps_pbc = FALSE;
  72 }
  73
  74 int connman_register_agent(void)
  75 {
  76         GVariant *reply = NULL;
  77         GVariant *params = NULL;
  78
  79         params = g_variant_new("(o)", NETCONFIG_WIFI_PATH);
  80         reply = netconfig_invoke_dbus_method(CONNMAN_SERVICE,
  81                         CONNMAN_MANAGER_PATH, CONNMAN_MANAGER_INTERFACE,
  82                         "RegisterAgent", params);
  83
  84         if (reply == NULL) {
  85                         ERR("Fail to register agent");
  86                         return FALSE;
  87         } else
  88                 g_variant_unref(reply);
  89
  90         INFO("Registered to connman agent successfully");
  91
  92         return TRUE;
  93 }
  94
  95 int connman_unregister_agent(void)
  96 {
  97         gboolean reply = FALSE;
  98         GVariant *param = NULL;
  99         const char *path = NETCONFIG_WIFI_PATH;
 100
 101         param = g_variant_new("(o)", path);
 102
 103         DBG("ConnMan agent unregister");
 104
 105         reply = netconfig_invoke_dbus_method_nonblock(CONNMAN_SERVICE,
 106                         CONNMAN_MANAGER_PATH, CONNMAN_MANAGER_INTERFACE,
 107                         "UnregisterAgent", param, NULL);
 108
 109         if (reply != TRUE)
 110                 ERR("Fail to unregister agent");
 111
 112         /* Clearing the agent fields */
 113         __netconfig_agent_clear_fields();
 114
 115         return reply;
 116 }
 117
 118 gboolean netconfig_wifi_set_agent_field_for_eap_network(
 119                 const char *name, const char *identity, const char *passphrase)
 120 {
 121         int name_len;
 122
 123         if (name == NULL)
 124                 return FALSE;
 125
 126         __netconfig_agent_clear_fields();
 127
 128         name_len = strlen(name);
 129         agent.ssid = g_byte_array_sized_new(name_len);
 130         agent.ssid->len = name_len;
 131         memcpy(agent.ssid->data, name, name_len + 1);
 132
 133         if (identity)
 134                 agent.identity = g_strdup(identity);
 135
 136         if (passphrase)
 137                 agent.passphrase = g_strdup(passphrase);
 138
 139         DBG("Successfully configured for EAP network");
 140
 141         return TRUE;
 142 }
 143
 144 gboolean handle_set_field(NetConnmanAgent *connman_agent,
 145                 GDBusMethodInvocation *context, const gchar *service, GVariant *fields)
 146 {
 147         GError *error = NULL;
 148         GVariantIter *iter;
 149         gpointer field;
 150         GVariant *value;
 151         gboolean updated = FALSE;
 152         gboolean reply = FALSE;
 153
 154         g_return_val_if_fail(connman_agent != NULL, FALSE);
 155
 156         DBG("Set agent fields for %s", service);
 157
 158         if (netconfig_is_wifi_profile(service) != TRUE) {
 159                 error = g_error_new(G_DBUS_ERROR,
 160                                 G_DBUS_ERROR_AUTH_FAILED,
 161                                 CONNMAN_ERROR_INTERFACE ".InvalidService");
 162
 163                 g_dbus_method_invocation_return_gerror(context, error);
 164                 g_clear_error(&error);
 165
 166                 return reply;
 167         }
 168
 169         __netconfig_agent_clear_fields();
 170         g_variant_get(fields, "a{sv}", &iter);
 171         while (g_variant_iter_loop(iter, "{sv}", &field, &value)) {
 172                 if (g_strcmp0(field, NETCONFIG_AGENT_FIELD_PASSPHRASE) == 0) {
 173                         if (g_variant_is_of_type(value, G_VARIANT_TYPE_STRING)) {
 174                                 agent.passphrase = g_strdup(g_variant_get_string(value, NULL));
 175                                 updated = TRUE;
 176
 177                                 DBG("Field [%s] - []", field);
 178                         }
 179                 } else if (g_strcmp0(field, NETCONFIG_AGENT_FIELD_WPS_PBC) == 0) {
 180                         if (g_variant_is_of_type(value, G_VARIANT_TYPE_STRING) &&
 181                                         g_strcmp0(g_variant_get_string(value, NULL), "enable") == 0) {
 182                                 agent.wps_pbc = TRUE;
 183                                 updated = TRUE;
 184
 185                                 DBG("Field [%s] - [%d]", field, agent.wps_pbc);
 186                         }
 187                 } else if (g_strcmp0(field, NETCONFIG_AGENT_FIELD_WPS_PIN) == 0) {
 188                         if (g_variant_is_of_type(value, G_VARIANT_TYPE_STRING)) {
 189                                 agent.wps_pin = g_strdup(g_variant_get_string(value, NULL));
 190                                 updated = TRUE;
 191
 192                                 DBG("Field [%s] - []", field);
 193                         }
 194                 } else if (g_strcmp0(field, NETCONFIG_AGENT_FIELD_NAME) == 0) {
 195                         if (g_variant_is_of_type(value, G_VARIANT_TYPE_STRING)) {
 196                                 agent.name = g_strdup(g_variant_get_string(value, NULL));
 197                                 updated = TRUE;
 198
 199                                 DBG("Field [%s] - []", field);
 200                         }
 201                 } else if (g_strcmp0(field, NETCONFIG_AGENT_FIELD_SSID) == 0) {
 202                         if (agent.ssid != NULL) {
 203                                 g_byte_array_free(agent.ssid, TRUE);
 204                                 agent.ssid = NULL;
 205                         }
 206
 207                         if (g_variant_is_of_type(value, G_VARIANT_TYPE_BYTESTRING)) {
 208                                 guint8 char_value;
 209                                 GVariantIter *iter1;
 210                                 GByteArray *array = g_byte_array_new();
 211
 212                                 g_variant_get(value, "ay", &iter1);
 213                                 while (g_variant_iter_loop(iter1, "y", &char_value))
 214                                         g_byte_array_append(array, &char_value, 1);
 215                                 g_variant_iter_free(iter1);
 216                                 if (array != NULL && (array->len > 0)) {
 217                                         agent.ssid = g_byte_array_sized_new(array->len);
 218                                         agent.ssid->len = array->len;
 219                                         memcpy(agent.ssid->data, array->data, array->len);
 220                                         updated = TRUE;
 221
 222                                         DBG("Field [%s] - []", field);
 223                                 }
 224                         }
 225                 } else if (g_strcmp0(field, NETCONFIG_AGENT_FIELD_IDENTITY) == 0) {
 226                         if (g_variant_is_of_type(value, G_VARIANT_TYPE_STRING)) {
 227                                 agent.identity = g_strdup(g_variant_get_string(value, NULL));
 228                                 updated = TRUE;
 229
 230                                 DBG("Field [%s] - []", field);
 231                         }
 232                 }
 233         }
 234
 235         if (updated == TRUE) {
 236                 reply = netconfig_invoke_dbus_method_nonblock(CONNMAN_SERVICE,
 237                                 service, CONNMAN_SERVICE_INTERFACE, "Connect",
 238                                 NULL, __netconfig_wifi_connect_reply);
 239                 if (reply != TRUE) {
 240                         ERR("Fail to connect Wi-Fi");
 241                         __netconfig_agent_clear_fields();
 242                         error = g_error_new(G_DBUS_ERROR,
 243                                         G_DBUS_ERROR_AUTH_FAILED,
 244                                         CONNMAN_ERROR_INTERFACE ".InvalidArguments");
 245
 246                         g_dbus_method_invocation_return_gerror(context, error);
 247                         g_clear_error(&error);
 248                         return reply;
 249                 }
 250         } else {
 251                 error = g_error_new(G_DBUS_ERROR,
 252                                 G_DBUS_ERROR_AUTH_FAILED,
 253                                 CONNMAN_ERROR_INTERFACE ".InvalidArguments");
 254
 255                 g_dbus_method_invocation_return_gerror(context, error);
 256                 g_clear_error(&error);
 257                 return reply;
 258         }
 259
 260         g_variant_iter_free(iter);
 261
 262         net_connman_agent_complete_set_field(connman_agent, context);
 263         return reply;
 264 }
 265
 266 gboolean handle_request_input(NetConnmanAgent *connman_agent,
 267                 GDBusMethodInvocation *context, const gchar *service, GVariant *fields)
 268 {
 269         GVariantIter *iter;
 270         gchar *field = NULL;
 271         GVariant *r_value = NULL;
 272         GVariant *out_table = NULL;
 273         gboolean updated = FALSE;
 274         GVariantBuilder *builder = NULL;
 275
 276         g_return_val_if_fail(connman_agent != NULL, FALSE);
 277
 278         if (NULL == service)
 279                 return FALSE;
 280
 281         DBG("Agent fields requested for service: %s", service);
 282
 283         builder = g_variant_builder_new(G_VARIANT_TYPE("a{sv}"));
 284
 285         g_variant_get(fields, "a{sv}", &iter);
 286         while (g_variant_iter_loop(iter, "{sv}", &field, &r_value)) {
 287
 288                 if (g_strcmp0(field, NETCONFIG_AGENT_FIELD_PASSPHRASE) == 0 &&
 289                                 agent.passphrase != NULL) {
 290                         g_variant_builder_add(builder, "{sv}", NETCONFIG_AGENT_FIELD_PASSPHRASE,
 291                                                         g_variant_new_string(agent.passphrase));
 292
 293                         updated = TRUE;
 294                         DBG("Setting [%s] - []", field);
 295                 } else if (g_strcmp0(field, NETCONFIG_AGENT_FIELD_WPS) == 0 &&
 296                                 (agent.wps_pbc == TRUE || agent.wps_pin != NULL)) {
 297                         if (agent.wps_pbc == TRUE) {
 298                                 /* Sending empty string for WPS push button method */
 299                                 g_variant_builder_add(builder, "{sv}", NETCONFIG_AGENT_FIELD_WPS, g_variant_new_string(""));
 300
 301                                 updated = TRUE;
 302                                 DBG("Setting empty string for [%s]", field);
 303                         } else if (agent.wps_pin != NULL) {
 304                                 g_variant_builder_add(builder, "{sv}", NETCONFIG_AGENT_FIELD_WPS, g_variant_new_string(agent.wps_pin));
 305
 306                                 updated = TRUE;
 307                                 DBG("Setting string [%s] - []", field);
 308                         }
 309                 } else if (g_strcmp0(field, NETCONFIG_AGENT_FIELD_NAME) == 0 &&
 310                                 agent.name != NULL) {
 311                         g_variant_builder_add(builder, "{sv}", NETCONFIG_AGENT_FIELD_NAME, g_variant_new_string(agent.name));
 312
 313                         updated = TRUE;
 314                         DBG("Settings [%s] - []", field);
 315                 } else if (g_strcmp0(field, NETCONFIG_AGENT_FIELD_SSID) == 0 &&
 316                                 agent.ssid != NULL) {
 317                         int i = 0;
 318                         GVariantBuilder *builder1 = NULL;
 319                         builder1 = g_variant_builder_new(G_VARIANT_TYPE("ay"));
 320
 321                         for (i = 0; i < (agent.ssid->len); i++)
 322                                 g_variant_builder_add(builder1, "y", agent.ssid->data[i]);
 323
 324                         g_variant_builder_add(builder, "{sv}", NETCONFIG_AGENT_FIELD_SSID, g_variant_builder_end(builder1));
 325                         if (builder1 != NULL)
 326                                 g_variant_builder_unref(builder1);
 327
 328                         updated = TRUE;
 329                         DBG("Settings [%s] - []", field);
 330                 } else if (g_strcmp0(field, NETCONFIG_AGENT_FIELD_IDENTITY) == 0 &&
 331                                 agent.identity != NULL) {
 332                         g_variant_builder_add(builder, "{sv}", NETCONFIG_AGENT_FIELD_IDENTITY, g_variant_new_string(agent.identity));
 333
 334                         updated = TRUE;
 335                         DBG("Settings [%s] - []", field);
 336                 }
 337         }
 338
 339         out_table = g_variant_new("(@a{sv})", g_variant_builder_end(builder));
 340
 341         if (builder)
 342                 g_variant_builder_unref(builder);
 343
 344         g_variant_iter_free(iter);
 345
 346
 347         if (NULL == out_table) {
 348                 net_connman_agent_complete_request_input(connman_agent, context, out_table);
 349
 350                 return FALSE;
 351         }
 352
 353         if (updated == TRUE)
 354                 g_dbus_method_invocation_return_value(context, out_table);
 355         else {
 356                 GError *error = NULL;
 357                 error = g_error_new(G_DBUS_ERROR,
 358                                 G_DBUS_ERROR_AUTH_FAILED,
 359                                 "net.connman.Agent.Error.Canceled");
 360
 361                 g_dbus_method_invocation_return_gerror(context, error);
 362                 g_clear_error(&error);
 363         }
 364
 365         __netconfig_agent_clear_fields();
 366
 367         return updated;
 368 }
 369
 370
 371 gboolean handle_report_error(NetConnmanAgent *connman_agent,
 372                 GDBusMethodInvocation *context, const gchar *service, const gchar *error)
 373 {
 374         gboolean ret = TRUE;
 375
 376         g_return_val_if_fail(connman_agent != NULL, FALSE);
 377
 378         net_connman_agent_complete_report_error(connman_agent, context);
 379         DBG("Agent error for service[%s] - [%s]", service, error);
 380
 381         /* Do something when it failed to make a connection */
 382
 383         return ret;
 384 }
 385
 386 #if defined TIZEN_CAPTIVE_PORTAL
 387 #if defined TIZEN_WEARABLE
 388 #define QUERY_FOR_INTERNET_INTERVAL                     2
 389 #define TIMER_THRESHOLD                                         4
 390 #else
 391 #define QUERY_FOR_INTERNET_INTERVAL                     20
 392 #define TIMER_THRESHOLD                                         120
 393 #endif
 394
 395 static gboolean is_monitor_notifier_registered = FALSE;
 396
 397 #if defined TIZEN_WEARABLE
 398 static gboolean is_portal_msg_shown = FALSE;
 399 #endif
 400
 401 struct poll_timer_data {
 402         guint time_elapsed;
 403         guint timer_id;
 404         void* data;
 405 };
 406
 407 static struct poll_timer_data timer_data = {
 408                 QUERY_FOR_INTERNET_INTERVAL, 0, NULL};
 409
 410 static gboolean __check_ignore_portal_list(const char * ssid)
 411 {
 412         char def_str[1024];
 413         int i = 0;
 414         int ignore_ap_count = 0;
 415
 416         if (ssid == NULL)
 417                 return FALSE;
 418
 419         DBG("checking ssid [%s]", ssid);
 420
 421         DBG("csc string [%s]", def_str);
 422         gchar ** ignore_ap_list = g_strsplit(def_str, ",", 0);
 423         ignore_ap_count = g_strv_length(ignore_ap_list);
 424         for (i = 0; i < ignore_ap_count; i++) {
 425                 DBG("[%d] - [%s]", i, ignore_ap_list[i]);
 426                 if (strncmp(ignore_ap_list[i], ssid, strlen(ssid)) == 0) {
 427                         g_strfreev(ignore_ap_list);
 428                         return TRUE;
 429                 }
 430         }
 431
 432         g_strfreev(ignore_ap_list);
 433         return FALSE;
 434 }
 435
 436 static void __wifi_state_monitor(wifi_service_state_e state,
 437                 void *user_data);
 438
 439 static wifi_state_notifier wifi_state_monitor_notifier = {
 440                 .wifi_state_changed = __wifi_state_monitor,
 441                 .user_data = NULL,
 442 };
 443
 444 static void __wifi_state_monitor(wifi_service_state_e state,
 445                 void *user_data)
 446 {
 447         DBG("Wi-Fi state: %x", state);
 448
 449         if (state == NETCONFIG_WIFI_CONNECTED)
 450                 return;
 451
 452         if (is_monitor_notifier_registered == TRUE) {
 453                 wifi_state_notifier_unregister(&wifi_state_monitor_notifier);
 454                 is_monitor_notifier_registered = FALSE;
 455         }
 456
 457 #if defined TIZEN_WEARABLE
 458         is_portal_msg_shown = FALSE;
 459 #endif
 460
 461         /* suspend if Internet check activity in progress */
 462         if (timer_data.timer_id == 0)
 463                 return;
 464
 465         netconfig_stop_timer(&timer_data.timer_id);
 466         netconfig_stop_internet_check();
 467
 468         DBG("Stopped Internet accessibility check");
 469 }
 470
 471 static gboolean __netconfig_wifi_portal_login_timeout(gpointer data)
 472 {
 473         char *service_profile = NULL;
 474         GVariant *reply = NULL;
 475
 476         DBG("");
 477
 478         struct poll_timer_data *timer = (struct poll_timer_data *)data;
 479         if (timer == NULL)
 480                 return FALSE;
 481
 482         if (TRUE == netconfig_get_internet_status()) {
 483                 if (is_monitor_notifier_registered == TRUE) {
 484                         wifi_state_notifier_unregister(&wifi_state_monitor_notifier);
 485                         is_monitor_notifier_registered = FALSE;
 486                 }
 487
 488                 DBG("Portal logged in successfully and update ConnMan state");
 489                 return FALSE; /* to stop the timer */
 490         } else {
 491                 if (timer->time_elapsed >= TIMER_THRESHOLD) {
 492                         DBG("Login failed, update ConnMan");
 493
 494                         if (is_monitor_notifier_registered == TRUE) {
 495                                 wifi_state_notifier_unregister(&wifi_state_monitor_notifier);
 496                                 is_monitor_notifier_registered = FALSE;
 497                         }
 498
 499                         /* Disconnect and forget the AP */
 500                         service_profile = (char*) netconfig_get_default_profile();
 501                         if (service_profile && netconfig_is_wifi_profile(service_profile)) {
 502                                 /* Now forget the AP*/
 503                                 reply = netconfig_invoke_dbus_method(CONNMAN_SERVICE,
 504                                                 service_profile, CONNMAN_SERVICE_INTERFACE, "Remove",
 505                                                 NULL);
 506
 507                                 if (reply != NULL)
 508                                         g_variant_unref(reply);
 509                                 else
 510                                         ERR("Failed to forget the AP ");
 511                         }
 512                 } else {
 513                         if (NETCONFIG_WIFI_CONNECTED ==
 514                                         wifi_state_get_service_state()) {
 515                                 /* check Internet availability by sending and receiving data*/
 516                                 netconfig_check_internet_accessibility();
 517                                 /* Returning TRUE itself is enough to restart the timer */
 518                                 timer->time_elapsed = timer->time_elapsed +
 519                                                                         QUERY_FOR_INTERNET_INTERVAL;
 520                                 return TRUE;
 521                         }
 522                 }
 523         }
 524
 525         return FALSE;
 526 }
 527
 528 static void __netconfig_wifi_portal_login_timer_start(struct poll_timer_data
 529                 *data)
 530 {
 531         DBG("__netconfig_wifi_browser_start_timer...starting timer");
 532
 533         if (data == NULL)
 534                 return;
 535
 536         netconfig_stop_timer(&(data->timer_id));
 537
 538         /* Timer logic: After successful launch of browser, we would check for
 539          * Internet status for every 20s until a threshold of 120s
 540          */
 541
 542         data->time_elapsed = QUERY_FOR_INTERNET_INTERVAL;
 543         netconfig_start_timer_seconds(QUERY_FOR_INTERNET_INTERVAL,
 544                 __netconfig_wifi_portal_login_timeout, data, &(data->timer_id));
 545 }
 546 #endif
 547
 548 gboolean handle_request_browser(NetConnmanAgent *connman_agent,
 549                 GDBusMethodInvocation *context, const gchar *service, const gchar *url)
 550 {
 551 #if defined TIZEN_CAPTIVE_PORTAL
 552         gboolean ret = FALSE;
 553         gboolean ignore_portal = FALSE;
 554         const char * ssid = NULL;
 555
 556         g_return_val_if_fail(connman_agent != NULL, FALSE);
 557
 558         DBG("service[%s] - url[%s]", service, url);
 559
 560         ssid = netconfig_wifi_get_connected_essid(netconfig_get_default_profile());
 561         if (ssid == NULL) {
 562                 ERR("Connected AP name is NULL!!");
 563                 net_connman_agent_complete_request_browser(connman_agent, context);
 564                 return FALSE;
 565         }
 566
 567         ignore_portal = __check_ignore_portal_list(ssid);
 568
 569         if (ignore_portal == TRUE) {
 570                 net_connman_agent_complete_request_browser(connman_agent, context);
 571                 return TRUE;
 572         }
 573         /* Register for Wifi state change notifier*/
 574         if (is_monitor_notifier_registered == FALSE) {
 575                 wifi_state_notifier_register(&wifi_state_monitor_notifier);
 576                 is_monitor_notifier_registered = TRUE;
 577         }
 578
 579         ret = netconfig_send_notification_to_net_popup(NETCONFIG_ADD_PORTAL_NOTI, ssid);
 580
 581         timer_data.time_elapsed = 0;
 582         __netconfig_wifi_portal_login_timer_start(&timer_data);
 583
 584         net_connman_agent_complete_request_browser(connman_agent, context);
 585         return ret;
 586 #else
 587         GError *error = NULL;
 588         error = g_error_new(G_DBUS_ERROR,
 589                         G_DBUS_ERROR_AUTH_FAILED,
 590                         CONNMAN_ERROR_INTERFACE ".NotSupported");
 591
 592         g_dbus_method_invocation_return_gerror(context, error);
 593         g_clear_error(&error);
 594
 595         return FALSE;
 596 #endif
 597 }