src/wispr.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
  29 #include <gweb/gweb.h>
  30
  31 #include "connman.h"
  32
  33 #define STATUS_URL_IPV4  "http://ipv4.connman.net/online/status.html"
  34 #define STATUS_URL_IPV6  "http://ipv6.connman.net/online/status.html"
  35
  36 struct connman_wispr_message {
  37         gboolean has_error;
  38         const char *current_element;
  39         int message_type;
  40         int response_code;
  41         char *login_url;
  42         char *abort_login_url;
  43         char *logoff_url;
  44         char *access_procedure;
  45         char *access_location;
  46         char *location_name;
  47 };
  48
  49 enum connman_wispr_result {
  50         CONNMAN_WISPR_RESULT_UNKNOWN = 0,
  51         CONNMAN_WISPR_RESULT_LOGIN   = 1,
  52         CONNMAN_WISPR_RESULT_ONLINE  = 2,
  53         CONNMAN_WISPR_RESULT_FAILED  = 3,
  54 };
  55
  56 struct connman_wispr_portal_context {
  57         struct connman_service *service;
  58         enum connman_ipconfig_type type;
  59
  60         /* Portal/WISPr common */
  61         GWeb *web;
  62         unsigned int token;
  63         guint request_id;
  64
  65         const char *status_url;
  66
  67         char *redirect_url;
  68
  69         /* WISPr specific */
  70         GWebParser *wispr_parser;
  71         struct connman_wispr_message wispr_msg;
  72
  73         char *wispr_username;
  74         char *wispr_password;
  75         char *wispr_formdata;
  76
  77         enum connman_wispr_result wispr_result;
  78 };
  79
  80 struct connman_wispr_portal {
  81         struct connman_wispr_portal_context *ipv4_context;
  82         struct connman_wispr_portal_context *ipv6_context;
  83 };
  84
  85 static gboolean wispr_portal_web_result(GWebResult *result, gpointer user_data);
  86
  87 static GHashTable *wispr_portal_list = NULL;
  88
  89 static void connman_wispr_message_init(struct connman_wispr_message *msg)
  90 {
  91         DBG("");
  92
  93         msg->has_error = FALSE;
  94         msg->current_element = NULL;
  95
  96         msg->message_type = -1;
  97         msg->response_code = -1;
  98
  99         g_free(msg->login_url);
 100         msg->login_url = NULL;
 101
 102         g_free(msg->abort_login_url);
 103         msg->abort_login_url = NULL;
 104
 105         g_free(msg->logoff_url);
 106         msg->logoff_url = NULL;
 107
 108         g_free(msg->access_procedure);
 109         msg->access_procedure = NULL;
 110
 111         g_free(msg->access_location);
 112         msg->access_location = NULL;
 113
 114         g_free(msg->location_name);
 115         msg->location_name = NULL;
 116 }
 117
 118 static void free_connman_wispr_portal_context(struct connman_wispr_portal_context *wp_context)
 119 {
 120         DBG("");
 121
 122         if (wp_context == NULL)
 123                 return;
 124
 125         connman_service_unref(wp_context->service);
 126
 127         if (wp_context->token > 0)
 128                 connman_proxy_lookup_cancel(wp_context->token);
 129
 130         if (wp_context->request_id > 0)
 131                 g_web_cancel_request(wp_context->web, wp_context->request_id);
 132
 133         g_web_unref(wp_context->web);
 134
 135         g_free(wp_context->redirect_url);
 136
 137         g_web_parser_unref(wp_context->wispr_parser);
 138         connman_wispr_message_init(&wp_context->wispr_msg);
 139
 140         g_free(wp_context->wispr_username);
 141         g_free(wp_context->wispr_password);
 142         g_free(wp_context->wispr_formdata);
 143
 144         g_free(wp_context);
 145 }
 146
 147 static void free_connman_wispr_portal(gpointer data)
 148 {
 149         struct connman_wispr_portal *wispr_portal = data;
 150
 151         DBG("");
 152
 153         if (wispr_portal == NULL)
 154                 return;
 155
 156         free_connman_wispr_portal_context(wispr_portal->ipv4_context);
 157         free_connman_wispr_portal_context(wispr_portal->ipv6_context);
 158
 159         g_free(wispr_portal);
 160 }
 161
 162 static const char *message_type_to_string(int message_type)
 163 {
 164         switch (message_type) {
 165         case 100:
 166                 return "Initial redirect message";
 167         case 110:
 168                 return "Proxy notification";
 169         case 120:
 170                 return "Authentication notification";
 171         case 130:
 172                 return "Logoff notification";
 173         case 140:
 174                 return "Response to Authentication Poll";
 175         case 150:
 176                 return "Response to Abort Login";
 177         }
 178
 179         return NULL;
 180 }
 181
 182 static const char *response_code_to_string(int response_code)
 183 {
 184         switch (response_code) {
 185         case 0:
 186                 return "No error";
 187         case 50:
 188                 return "Login succeeded";
 189         case 100:
 190                 return "Login failed";
 191         case 102:
 192                 return "RADIUS server error/timeout";
 193         case 105:
 194                 return "RADIUS server not enabled";
 195         case 150:
 196                 return "Logoff succeeded";
 197         case 151:
 198                 return "Login aborted";
 199         case 200:
 200                 return "Proxy detection/repeat operation";
 201         case 201:
 202                 return "Authentication pending";
 203         case 255:
 204                 return "Access gateway internal error";
 205         }
 206
 207         return NULL;
 208 }
 209
 210 static struct {
 211         const char *str;
 212         enum {
 213                 WISPR_ELEMENT_NONE              = 0,
 214                 WISPR_ELEMENT_ACCESS_PROCEDURE  = 1,
 215                 WISPR_ELEMENT_ACCESS_LOCATION   = 2,
 216                 WISPR_ELEMENT_LOCATION_NAME     = 3,
 217                 WISPR_ELEMENT_LOGIN_URL         = 4,
 218                 WISPR_ELEMENT_ABORT_LOGIN_URL   = 5,
 219                 WISPR_ELEMENT_MESSAGE_TYPE      = 6,
 220                 WISPR_ELEMENT_RESPONSE_CODE     = 7,
 221                 WISPR_ELEMENT_NEXT_URL          = 8,
 222                 WISPR_ELEMENT_DELAY             = 9,
 223                 WISPR_ELEMENT_REPLY_MESSAGE     = 10,
 224                 WISPR_ELEMENT_LOGIN_RESULTS_URL = 11,
 225                 WISPR_ELEMENT_LOGOFF_URL        = 12,
 226         } element;
 227 } wispr_element_map[] = {
 228         { "AccessProcedure",    WISPR_ELEMENT_ACCESS_PROCEDURE  },
 229         { "AccessLocation",     WISPR_ELEMENT_ACCESS_LOCATION   },
 230         { "LocationName",       WISPR_ELEMENT_LOCATION_NAME     },
 231         { "LoginURL",           WISPR_ELEMENT_LOGIN_URL         },
 232         { "AbortLoginURL",      WISPR_ELEMENT_ABORT_LOGIN_URL   },
 233         { "MessageType",        WISPR_ELEMENT_MESSAGE_TYPE      },
 234         { "ResponseCode",       WISPR_ELEMENT_RESPONSE_CODE     },
 235         { "NextURL",            WISPR_ELEMENT_NEXT_URL          },
 236         { "Delay",              WISPR_ELEMENT_DELAY             },
 237         { "ReplyMessage",       WISPR_ELEMENT_REPLY_MESSAGE     },
 238         { "LoginResultsURL",    WISPR_ELEMENT_LOGIN_RESULTS_URL },
 239         { "LogoffURL",          WISPR_ELEMENT_LOGOFF_URL        },
 240         { NULL,                 WISPR_ELEMENT_NONE              },
 241 };
 242
 243 static void xml_wispr_start_element_handler(GMarkupParseContext *context,
 244                                         const gchar *element_name,
 245                                         const gchar **attribute_names,
 246                                         const gchar **attribute_values,
 247                                         gpointer user_data, GError **error)
 248 {
 249         struct connman_wispr_message *msg = user_data;
 250
 251         msg->current_element = element_name;
 252 }
 253
 254 static void xml_wispr_end_element_handler(GMarkupParseContext *context,
 255                                         const gchar *element_name,
 256                                         gpointer user_data, GError **error)
 257 {
 258         struct connman_wispr_message *msg = user_data;
 259
 260         msg->current_element = NULL;
 261 }
 262
 263 static void xml_wispr_text_handler(GMarkupParseContext *context,
 264                                         const gchar *text, gsize text_len,
 265                                         gpointer user_data, GError **error)
 266 {
 267         struct connman_wispr_message *msg = user_data;
 268         int i;
 269
 270         if (msg->current_element == NULL)
 271                 return;
 272
 273         for (i = 0; wispr_element_map[i].str; i++) {
 274                 if (g_str_equal(wispr_element_map[i].str,
 275                                         msg->current_element) == FALSE)
 276                         continue;
 277
 278                 switch (wispr_element_map[i].element) {
 279                 case WISPR_ELEMENT_NONE:
 280                 case WISPR_ELEMENT_ACCESS_PROCEDURE:
 281                         g_free(msg->access_procedure);
 282                         msg->access_procedure = g_strdup(text);
 283                         break;
 284                 case WISPR_ELEMENT_ACCESS_LOCATION:
 285                         g_free(msg->access_location);
 286                         msg->access_location = g_strdup(text);
 287                         break;
 288                 case WISPR_ELEMENT_LOCATION_NAME:
 289                         g_free(msg->location_name);
 290                         msg->location_name = g_strdup(text);
 291                         break;
 292                 case WISPR_ELEMENT_LOGIN_URL:
 293                         g_free(msg->login_url);
 294                         msg->login_url = g_strdup(text);
 295                         break;
 296                 case WISPR_ELEMENT_ABORT_LOGIN_URL:
 297                         g_free(msg->abort_login_url);
 298                         msg->abort_login_url = g_strdup(text);
 299                         break;
 300                 case WISPR_ELEMENT_MESSAGE_TYPE:
 301                         msg->message_type = atoi(text);
 302                         break;
 303                 case WISPR_ELEMENT_RESPONSE_CODE:
 304                         msg->response_code = atoi(text);
 305                         break;
 306                 case WISPR_ELEMENT_NEXT_URL:
 307                 case WISPR_ELEMENT_DELAY:
 308                 case WISPR_ELEMENT_REPLY_MESSAGE:
 309                 case WISPR_ELEMENT_LOGIN_RESULTS_URL:
 310                         break;
 311                 case WISPR_ELEMENT_LOGOFF_URL:
 312                         g_free(msg->logoff_url);
 313                         msg->logoff_url = g_strdup(text);
 314                         break;
 315                 }
 316         }
 317 }
 318
 319 static void xml_wispr_error_handler(GMarkupParseContext *context,
 320                                         GError *error, gpointer user_data)
 321 {
 322         struct connman_wispr_message *msg = user_data;
 323
 324         msg->has_error = TRUE;
 325 }
 326
 327 static const GMarkupParser xml_wispr_parser_handlers = {
 328         xml_wispr_start_element_handler,
 329         xml_wispr_end_element_handler,
 330         xml_wispr_text_handler,
 331         NULL,
 332         xml_wispr_error_handler,
 333 };
 334
 335 static void xml_wispr_parser_callback(const char *str, gpointer user_data)
 336 {
 337         struct connman_wispr_portal_context *wp_context = user_data;
 338         GMarkupParseContext *parser_context = NULL;
 339         gboolean result;
 340
 341         DBG("");
 342
 343         parser_context = g_markup_parse_context_new(&xml_wispr_parser_handlers,
 344                                         G_MARKUP_TREAT_CDATA_AS_TEXT,
 345                                         &(wp_context->wispr_msg), NULL);
 346
 347         result = g_markup_parse_context_parse(parser_context,
 348                                         str, strlen(str), NULL);
 349         if (result == TRUE)
 350                 result = g_markup_parse_context_end_parse(parser_context, NULL);
 351
 352         g_markup_parse_context_free(parser_context);
 353 }
 354
 355 static void web_debug(const char *str, void *data)
 356 {
 357         connman_info("%s: %s\n", (const char *) data, str);
 358 }
 359
 360 static void wispr_portal_error(struct connman_wispr_portal_context *wp_context)
 361 {
 362         DBG("Failed to proceed wispr/portal web request");
 363
 364         wp_context->wispr_result = CONNMAN_WISPR_RESULT_FAILED;
 365 }
 366
 367 static void portal_manage_status(GWebResult *result,
 368                         struct connman_wispr_portal_context *wp_context)
 369 {
 370         const char *str = NULL;
 371
 372         DBG("");
 373
 374         /* We currently don't do anything with this info */
 375         if (g_web_result_get_header(result, "X-ConnMan-Client-IP",
 376                                 &str) == TRUE)
 377                 connman_info("Client-IP: %s", str);
 378
 379         if (g_web_result_get_header(result, "X-ConnMan-Client-Country",
 380                                 &str) == TRUE)
 381                 connman_info("Client-Country: %s", str);
 382
 383         if (g_web_result_get_header(result, "X-ConnMan-Client-Region",
 384                                 &str) == TRUE)
 385                 connman_info("Client-Region: %s", str);
 386
 387         __connman_service_ipconfig_indicate_state(wp_context->service,
 388                                                 CONNMAN_SERVICE_STATE_ONLINE,
 389                                                 wp_context->type);
 390 }
 391
 392 static void wispr_portal_request_portal(struct connman_wispr_portal_context *wp_context)
 393 {
 394         DBG("");
 395
 396         wp_context->request_id = g_web_request_get(wp_context->web,
 397                                         wp_context->status_url,
 398                                         wispr_portal_web_result, wp_context);
 399
 400         if (wp_context->request_id == 0)
 401                 wispr_portal_error(wp_context);
 402 }
 403
 404 static gboolean wispr_input(const guint8 **data, gsize *length,
 405                                                 gpointer user_data)
 406 {
 407         struct connman_wispr_portal_context *wp_context = user_data;
 408         GString *buf;
 409         gsize count;
 410
 411         DBG("");
 412
 413         buf = g_string_sized_new(100);
 414
 415         g_string_append(buf, "button=Login&UserName=");
 416         g_string_append_uri_escaped(buf, wp_context->wispr_username,
 417                                                                 NULL, FALSE);
 418         g_string_append(buf, "&Password=");
 419         g_string_append_uri_escaped(buf, wp_context->wispr_password,
 420                                                                 NULL, FALSE);
 421         g_string_append(buf, "&FNAME=0&OriginatingServer=");
 422         g_string_append_uri_escaped(buf, wp_context->status_url, NULL, FALSE);
 423
 424         count = buf->len;
 425
 426         g_free(wp_context->wispr_formdata);
 427         wp_context->wispr_formdata = g_string_free(buf, FALSE);
 428
 429         *data = (guint8 *) wp_context->wispr_formdata;
 430         *length = count;
 431
 432         return FALSE;
 433 }
 434
 435 static void wispr_portal_request_wispr_login(struct connman_service *service,
 436                                 connman_bool_t success,
 437                                 const char *ssid, int ssid_len,
 438                                 const char *username, const char *password,
 439                                 void *user_data)
 440 {
 441         struct connman_wispr_portal_context *wp_context = user_data;
 442
 443         DBG("");
 444
 445         g_free(wp_context->wispr_username);
 446         wp_context->wispr_username = g_strdup(username);
 447
 448         g_free(wp_context->wispr_password);
 449         wp_context->wispr_password = g_strdup(password);
 450
 451         wp_context->request_id = g_web_request_post(wp_context->web,
 452                                         wp_context->wispr_msg.login_url,
 453                                         "application/x-www-form-urlencoded",
 454                                         wispr_input, wispr_portal_web_result,
 455                                         wp_context);
 456
 457         connman_wispr_message_init(&wp_context->wispr_msg);
 458 }
 459
 460 static gboolean wispr_manage_message(GWebResult *result,
 461                         struct connman_wispr_portal_context *wp_context)
 462 {
 463         DBG("Message type: %s (%d)",
 464                 message_type_to_string(wp_context->wispr_msg.message_type),
 465                                         wp_context->wispr_msg.message_type);
 466         DBG("Response code: %s (%d)",
 467                 response_code_to_string(wp_context->wispr_msg.response_code),
 468                                         wp_context->wispr_msg.response_code);
 469
 470         if (wp_context->wispr_msg.access_procedure != NULL)
 471                 DBG("Access procedure: %s",
 472                         wp_context->wispr_msg.access_procedure);
 473         if (wp_context->wispr_msg.access_location != NULL)
 474                 DBG("Access location: %s",
 475                         wp_context->wispr_msg.access_location);
 476         if (wp_context->wispr_msg.location_name != NULL)
 477                 DBG("Location name: %s",
 478                         wp_context->wispr_msg.location_name);
 479         if (wp_context->wispr_msg.login_url != NULL)
 480                 DBG("Login URL: %s", wp_context->wispr_msg.login_url);
 481         if (wp_context->wispr_msg.abort_login_url != NULL)
 482                 DBG("Abort login URL: %s",
 483                         wp_context->wispr_msg.abort_login_url);
 484         if (wp_context->wispr_msg.logoff_url != NULL)
 485                 DBG("Logoff URL: %s", wp_context->wispr_msg.logoff_url);
 486
 487         switch (wp_context->wispr_msg.message_type) {
 488         case 100:
 489                 DBG("Login required");
 490
 491                 wp_context->wispr_result = CONNMAN_WISPR_RESULT_LOGIN;
 492
 493                 if (__connman_agent_request_login_input(wp_context->service,
 494                                         wispr_portal_request_wispr_login,
 495                                         wp_context) != -EIO)
 496                         wispr_portal_error(wp_context);
 497
 498                 break;
 499         case 120: /* Falling down */
 500         case 140:
 501                 if (wp_context->wispr_msg.response_code == 50) {
 502                         wp_context->wispr_result = CONNMAN_WISPR_RESULT_ONLINE;
 503
 504                         g_free(wp_context->wispr_username);
 505                         wp_context->wispr_username = NULL;
 506
 507                         g_free(wp_context->wispr_password);
 508                         wp_context->wispr_password = NULL;
 509
 510                         g_free(wp_context->wispr_formdata);
 511                         wp_context->wispr_formdata = NULL;
 512
 513                         wispr_portal_request_portal(wp_context);
 514
 515                         return TRUE;
 516                 } else
 517                         wispr_portal_error(wp_context);
 518
 519                 break;
 520         default:
 521                 break;
 522         }
 523
 524         return FALSE;
 525 }
 526
 527 static gboolean wispr_portal_web_result(GWebResult *result, gpointer user_data)
 528 {
 529         struct connman_wispr_portal_context *wp_context = user_data;
 530         const char *redirect = NULL;
 531         const guint8 *chunk = NULL;
 532         const char *str = NULL;
 533         guint16 status;
 534         gsize length;
 535
 536         DBG("");
 537
 538         if (wp_context->request_id == 0)
 539                 return FALSE;
 540
 541         if (wp_context->wispr_result != CONNMAN_WISPR_RESULT_ONLINE) {
 542                 g_web_result_get_chunk(result, &chunk, &length);
 543
 544                 if (length > 0) {
 545                         g_web_parser_feed_data(wp_context->wispr_parser,
 546                                                                 chunk, length);
 547                         return TRUE;
 548                 }
 549
 550                 g_web_parser_end_data(wp_context->wispr_parser);
 551
 552                 if (wp_context->wispr_msg.message_type >= 0) {
 553                         if (wispr_manage_message(result, wp_context) == TRUE)
 554                                 goto done;
 555                 }
 556         }
 557
 558         status = g_web_result_get_status(result);
 559
 560         DBG("status: %03u", status);
 561
 562         switch (status) {
 563         case 200:
 564                 if (wp_context->wispr_msg.message_type >= 0)
 565                         break;
 566
 567                 if (g_web_result_get_header(result, "X-ConnMan-Status",
 568                                                                 &str) == TRUE)
 569                         portal_manage_status(result, wp_context);
 570                 else
 571                         __connman_agent_request_browser(wp_context->service,
 572                                 NULL, wp_context->redirect_url, wp_context);
 573
 574                 break;
 575         case 302:
 576                 if (g_web_result_get_header(result, "Location",
 577                                                 &redirect) == FALSE) {
 578                         __connman_agent_request_browser(wp_context->service,
 579                                 NULL, wp_context->status_url, wp_context);
 580                         break;
 581                 }
 582
 583                 DBG("Redirect URL: %s", redirect);
 584
 585                 wp_context->redirect_url = g_strdup(redirect);
 586
 587                 wp_context->request_id = g_web_request_get(wp_context->web,
 588                                 redirect, wispr_portal_web_result, wp_context);
 589
 590                 goto done;
 591         case 404:
 592                 if (__connman_service_online_check_failed(wp_context->service,
 593                                                         wp_context->type) == 0)
 594                         wispr_portal_error(wp_context);
 595
 596                 break;
 597         default:
 598                 break;
 599         }
 600
 601         wp_context->request_id = 0;
 602 done:
 603         wp_context->wispr_msg.message_type = -1;
 604         return FALSE;
 605 }
 606
 607 static void proxy_callback(const char *proxy, void *user_data)
 608 {
 609         struct connman_wispr_portal_context *wp_context = user_data;
 610
 611         DBG("proxy %s", proxy);
 612
 613         wp_context->token = 0;
 614
 615         if (proxy == NULL)
 616                 proxy = getenv("http_proxy");
 617
 618         if (getenv("CONNMAN_WEB_DEBUG"))
 619                 g_web_set_debug(wp_context->web, web_debug, "WEB");
 620
 621         if (proxy != NULL && g_strcmp0(proxy, "DIRECT") != 0)
 622                 g_web_set_proxy(wp_context->web, proxy);
 623
 624         g_web_set_accept(wp_context->web, NULL);
 625         g_web_set_user_agent(wp_context->web, "ConnMan/%s wispr", VERSION);
 626         g_web_set_close_connection(wp_context->web, TRUE);
 627
 628         connman_wispr_message_init(&wp_context->wispr_msg);
 629
 630         wp_context->wispr_parser = g_web_parser_new(
 631                                         "<WISPAccessGatewayParam",
 632                                         "WISPAccessGatewayParam>",
 633                                         xml_wispr_parser_callback, wp_context);
 634
 635         wispr_portal_request_portal(wp_context);
 636 }
 637
 638 static int wispr_portal_detect(struct connman_wispr_portal_context *wp_context)
 639 {
 640         enum connman_service_type service_type;
 641         char *interface = NULL;
 642         char **nameservers = NULL;
 643         int if_index;
 644         int err = 0;
 645         int i;
 646
 647         DBG("wispr/portal context %p", wp_context);
 648         DBG("service %p", wp_context->service);
 649
 650         service_type = connman_service_get_type(wp_context->service);
 651
 652         switch (service_type) {
 653         case CONNMAN_SERVICE_TYPE_ETHERNET:
 654         case CONNMAN_SERVICE_TYPE_WIFI:
 655         case CONNMAN_SERVICE_TYPE_WIMAX:
 656         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 657         case CONNMAN_SERVICE_TYPE_CELLULAR:
 658                 break;
 659         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 660         case CONNMAN_SERVICE_TYPE_SYSTEM:
 661         case CONNMAN_SERVICE_TYPE_GPS:
 662         case CONNMAN_SERVICE_TYPE_VPN:
 663         case CONNMAN_SERVICE_TYPE_GADGET:
 664                 return -EOPNOTSUPP;
 665         }
 666
 667         interface = connman_service_get_interface(wp_context->service);
 668         if (interface == NULL)
 669                 return -EINVAL;
 670
 671         DBG("interface %s", interface);
 672
 673         if_index = connman_inet_ifindex(interface);
 674         if (if_index < 0) {
 675                 err = -EINVAL;
 676                 goto done;
 677         }
 678
 679         nameservers = connman_service_get_nameservers(wp_context->service);
 680         if (nameservers == NULL) {
 681                 err = -EINVAL;
 682                 goto done;
 683         }
 684
 685         wp_context->web = g_web_new(if_index);
 686         if (wp_context->web == NULL) {
 687                 err = -ENOMEM;
 688                 goto done;
 689         }
 690
 691         if (wp_context->type == CONNMAN_IPCONFIG_TYPE_IPV4) {
 692                 g_web_set_address_family(wp_context->web, AF_INET);
 693                 wp_context->status_url = STATUS_URL_IPV4;
 694         } else {
 695                 g_web_set_address_family(wp_context->web, AF_INET6);
 696                 wp_context->status_url = STATUS_URL_IPV6;
 697         }
 698
 699         for (i = 0; nameservers[i] != NULL; i++)
 700                 g_web_add_nameserver(wp_context->web, nameservers[i]);
 701
 702         wp_context->token = connman_proxy_lookup(interface,
 703                                         wp_context->status_url,
 704                                         wp_context->service,
 705                                         proxy_callback, wp_context);
 706         if (wp_context->token == 0)
 707                 err = -EINVAL;
 708
 709 done:
 710         g_strfreev(nameservers);
 711
 712         g_free(interface);
 713         return err;
 714 }
 715
 716 int __connman_wispr_start(struct connman_service *service,
 717                                         enum connman_ipconfig_type type)
 718 {
 719         struct connman_wispr_portal_context *wp_context = NULL;
 720         struct connman_wispr_portal *wispr_portal = NULL;
 721         int index;
 722
 723         DBG("service %p", service);
 724
 725         if (wispr_portal_list == NULL)
 726                 return -EINVAL;
 727
 728         index = __connman_service_get_index(service);
 729         if (index < 0)
 730                 return -EINVAL;
 731
 732         wispr_portal = g_hash_table_lookup(wispr_portal_list,
 733                                         GINT_TO_POINTER(index));
 734         if (wispr_portal == NULL) {
 735                 wispr_portal = g_try_new0(struct connman_wispr_portal, 1);
 736                 if (wispr_portal == NULL)
 737                         return -ENOMEM;
 738
 739                 g_hash_table_replace(wispr_portal_list,
 740                                         GINT_TO_POINTER(index), wispr_portal);
 741         }
 742
 743         if (type == CONNMAN_IPCONFIG_TYPE_IPV4)
 744                 wp_context = wispr_portal->ipv4_context;
 745         else if (type == CONNMAN_IPCONFIG_TYPE_IPV6)
 746                 wp_context = wispr_portal->ipv6_context;
 747         else
 748                 return -EINVAL;
 749
 750         /* If there is already an existing context, we wipe it */
 751         if (wp_context != NULL)
 752                 free_connman_wispr_portal_context(wp_context);
 753
 754         wp_context = g_try_new0(struct connman_wispr_portal_context, 1);
 755         if (wp_context == NULL)
 756                 return -ENOMEM;
 757
 758         connman_service_ref(service);
 759
 760         wp_context->service = service;
 761         wp_context->type = type;
 762
 763         if (type == CONNMAN_IPCONFIG_TYPE_IPV4)
 764                 wispr_portal->ipv4_context = wp_context;
 765         else
 766                 wispr_portal->ipv6_context = wp_context;
 767
 768         return wispr_portal_detect(wp_context);
 769 }
 770
 771 void __connman_wispr_stop(struct connman_service *service)
 772 {
 773         int index;
 774
 775         DBG("service %p", service);
 776
 777         if (wispr_portal_list == NULL)
 778                 return;
 779
 780         index = __connman_service_get_index(service);
 781         if (index < 0)
 782                 return;
 783
 784         g_hash_table_remove(wispr_portal_list, GINT_TO_POINTER(index));
 785 }
 786
 787 int __connman_wispr_init(void)
 788 {
 789         DBG("");
 790
 791         wispr_portal_list = g_hash_table_new_full(g_direct_hash,
 792                                                 g_direct_equal, NULL,
 793                                                 free_connman_wispr_portal);
 794
 795         return 0;
 796 }
 797
 798 void __connman_wispr_cleanup(void)
 799 {
 800         DBG("");
 801
 802         g_hash_table_destroy(wispr_portal_list);
 803         wispr_portal_list = NULL;
 804 }