src/ap/wps_hostapd.c

   1 /*
   2  * hostapd / WPS integration
   3  * Copyright (c) 2008-2010, Jouni Malinen <j@w1.fi>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  */
  14
  15 #include "utils/includes.h"
  16
  17 #include "utils/common.h"
  18 #include "utils/eloop.h"
  19 #include "utils/uuid.h"
  20 #include "crypto/dh_groups.h"
  21 #include "common/wpa_ctrl.h"
  22 #include "common/ieee802_11_defs.h"
  23 #include "common/ieee802_11_common.h"
  24 #include "eapol_auth/eapol_auth_sm.h"
  25 #include "eapol_auth/eapol_auth_sm_i.h"
  26 #include "wps/wps.h"
  27 #include "wps/wps_defs.h"
  28 #include "wps/wps_dev_attr.h"
  29 #include "hostapd.h"
  30 #include "ap_config.h"
  31 #include "beacon.h"
  32 #include "sta_info.h"
  33 #include "wps_hostapd.h"
  34
  35
  36 #ifdef CONFIG_WPS_UPNP
  37 #include "wps/wps_upnp.h"
  38 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
  39                                  struct wps_context *wps);
  40 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd);
  41 #endif /* CONFIG_WPS_UPNP */
  42
  43 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr,
  44                                     const u8 *ie, size_t ie_len);
  45 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
  46
  47
  48 struct wps_for_each_data {
  49         int (*func)(struct hostapd_data *h, void *ctx);
  50         void *ctx;
  51 };
  52
  53
  54 static int wps_for_each(struct hostapd_iface *iface, void *ctx)
  55 {
  56         struct wps_for_each_data *data = ctx;
  57         size_t j;
  58
  59         if (iface == NULL)
  60                 return 0;
  61         for (j = 0; j < iface->num_bss; j++) {
  62                 struct hostapd_data *hapd = iface->bss[j];
  63                 int ret = data->func(hapd, data->ctx);
  64                 if (ret)
  65                         return ret;
  66         }
  67
  68         return 0;
  69 }
  70
  71
  72 static int hostapd_wps_for_each(struct hostapd_data *hapd,
  73                                 int (*func)(struct hostapd_data *h, void *ctx),
  74                                 void *ctx)
  75 {
  76         struct hostapd_iface *iface = hapd->iface;
  77         struct wps_for_each_data data;
  78         if (iface->for_each_interface == NULL)
  79                 return -1;
  80         data.func = func;
  81         data.ctx = ctx;
  82         return iface->for_each_interface(iface->interfaces, wps_for_each,
  83                                          &data);
  84 }
  85
  86
  87 static int hostapd_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
  88                                   size_t psk_len)
  89 {
  90         struct hostapd_data *hapd = ctx;
  91         struct hostapd_wpa_psk *p;
  92         struct hostapd_ssid *ssid = &hapd->conf->ssid;
  93
  94         wpa_printf(MSG_DEBUG, "Received new WPA/WPA2-PSK from WPS for STA "
  95                    MACSTR, MAC2STR(mac_addr));
  96         wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
  97
  98         if (psk_len != PMK_LEN) {
  99                 wpa_printf(MSG_DEBUG, "Unexpected PSK length %lu",
 100                            (unsigned long) psk_len);
 101                 return -1;
 102         }
 103
 104         /* Add the new PSK to runtime PSK list */
 105         p = os_zalloc(sizeof(*p));
 106         if (p == NULL)
 107                 return -1;
 108         os_memcpy(p->addr, mac_addr, ETH_ALEN);
 109         os_memcpy(p->psk, psk, PMK_LEN);
 110
 111         p->next = ssid->wpa_psk;
 112         ssid->wpa_psk = p;
 113
 114         if (ssid->wpa_psk_file) {
 115                 FILE *f;
 116                 char hex[PMK_LEN * 2 + 1];
 117                 /* Add the new PSK to PSK list file */
 118                 f = fopen(ssid->wpa_psk_file, "a");
 119                 if (f == NULL) {
 120                         wpa_printf(MSG_DEBUG, "Failed to add the PSK to "
 121                                    "'%s'", ssid->wpa_psk_file);
 122                         return -1;
 123                 }
 124
 125                 wpa_snprintf_hex(hex, sizeof(hex), psk, psk_len);
 126                 fprintf(f, MACSTR " %s\n", MAC2STR(mac_addr), hex);
 127                 fclose(f);
 128         }
 129
 130         return 0;
 131 }
 132
 133
 134 static int hostapd_wps_set_ie_cb(void *ctx, struct wpabuf *beacon_ie,
 135                                  struct wpabuf *probe_resp_ie)
 136 {
 137         struct hostapd_data *hapd = ctx;
 138         wpabuf_free(hapd->wps_beacon_ie);
 139         hapd->wps_beacon_ie = beacon_ie;
 140         wpabuf_free(hapd->wps_probe_resp_ie);
 141         hapd->wps_probe_resp_ie = probe_resp_ie;
 142         ieee802_11_set_beacon(hapd);
 143         return hapd->drv.set_ap_wps_ie(hapd);
 144 }
 145
 146
 147 static void hostapd_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
 148                                       const struct wps_device_data *dev)
 149 {
 150         struct hostapd_data *hapd = ctx;
 151         char uuid[40], txt[400];
 152         int len;
 153         char devtype[WPS_DEV_TYPE_BUFSIZE];
 154         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 155                 return;
 156         wpa_printf(MSG_DEBUG, "WPS: PIN needed for E-UUID %s", uuid);
 157         len = os_snprintf(txt, sizeof(txt), WPS_EVENT_PIN_NEEDED
 158                           "%s " MACSTR " [%s|%s|%s|%s|%s|%s]",
 159                           uuid, MAC2STR(dev->mac_addr), dev->device_name,
 160                           dev->manufacturer, dev->model_name,
 161                           dev->model_number, dev->serial_number,
 162                           wps_dev_type_bin2str(dev->pri_dev_type, devtype,
 163                                                sizeof(devtype)));
 164         if (len > 0 && len < (int) sizeof(txt))
 165                 wpa_msg(hapd->msg_ctx, MSG_INFO, "%s", txt);
 166
 167         if (hapd->conf->wps_pin_requests) {
 168                 FILE *f;
 169                 struct os_time t;
 170                 f = fopen(hapd->conf->wps_pin_requests, "a");
 171                 if (f == NULL)
 172                         return;
 173                 os_get_time(&t);
 174                 fprintf(f, "%ld\t%s\t" MACSTR "\t%s\t%s\t%s\t%s\t%s"
 175                         "\t%s\n",
 176                         t.sec, uuid, MAC2STR(dev->mac_addr), dev->device_name,
 177                         dev->manufacturer, dev->model_name, dev->model_number,
 178                         dev->serial_number,
 179                         wps_dev_type_bin2str(dev->pri_dev_type, devtype,
 180                                              sizeof(devtype)));
 181                 fclose(f);
 182         }
 183 }
 184
 185
 186 static void hostapd_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 187                                        const u8 *uuid_e)
 188 {
 189         struct hostapd_data *hapd = ctx;
 190         char uuid[40];
 191         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 192                 return;
 193         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_REG_SUCCESS MACSTR " %s",
 194                 MAC2STR(mac_addr), uuid);
 195         if (hapd->wps_reg_success_cb)
 196                 hapd->wps_reg_success_cb(hapd->wps_reg_success_cb_ctx,
 197                                          mac_addr, uuid_e);
 198 }
 199
 200
 201 static void hostapd_wps_enrollee_seen_cb(void *ctx, const u8 *addr,
 202                                          const u8 *uuid_e,
 203                                          const u8 *pri_dev_type,
 204                                          u16 config_methods,
 205                                          u16 dev_password_id, u8 request_type,
 206                                          const char *dev_name)
 207 {
 208         struct hostapd_data *hapd = ctx;
 209         char uuid[40];
 210         char devtype[WPS_DEV_TYPE_BUFSIZE];
 211         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 212                 return;
 213         if (dev_name == NULL)
 214                 dev_name = "";
 215         wpa_msg_ctrl(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ENROLLEE_SEEN MACSTR
 216                      " %s %s 0x%x %u %u [%s]",
 217                      MAC2STR(addr), uuid,
 218                      wps_dev_type_bin2str(pri_dev_type, devtype,
 219                                           sizeof(devtype)),
 220                      config_methods, dev_password_id, request_type, dev_name);
 221 }
 222
 223
 224 static int str_starts(const char *str, const char *start)
 225 {
 226         return os_strncmp(str, start, os_strlen(start)) == 0;
 227 }
 228
 229
 230 static void wps_reload_config(void *eloop_data, void *user_ctx)
 231 {
 232         struct hostapd_iface *iface = eloop_data;
 233
 234         wpa_printf(MSG_DEBUG, "WPS: Reload configuration data");
 235         if (iface->reload_config(iface) < 0) {
 236                 wpa_printf(MSG_WARNING, "WPS: Failed to reload the updated "
 237                            "configuration");
 238         }
 239 }
 240
 241
 242 static int hostapd_wps_cred_cb(void *ctx, const struct wps_credential *cred)
 243 {
 244         struct hostapd_data *hapd = ctx;
 245         FILE *oconf, *nconf;
 246         size_t len, i;
 247         char *tmp_fname;
 248         char buf[1024];
 249         int multi_bss;
 250         int wpa;
 251
 252         wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
 253                         cred->cred_attr, cred->cred_attr_len);
 254
 255         wpa_printf(MSG_DEBUG, "WPS: Received new AP Settings");
 256         wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
 257         wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
 258                    cred->auth_type);
 259         wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
 260         wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
 261         wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
 262                         cred->key, cred->key_len);
 263         wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
 264                    MAC2STR(cred->mac_addr));
 265
 266         if ((hapd->conf->wps_cred_processing == 1 ||
 267              hapd->conf->wps_cred_processing == 2) && cred->cred_attr) {
 268                 size_t blen = cred->cred_attr_len * 2 + 1;
 269                 char *_buf = os_malloc(blen);
 270                 if (_buf) {
 271                         wpa_snprintf_hex(_buf, blen,
 272                                          cred->cred_attr, cred->cred_attr_len);
 273                         wpa_msg(hapd->msg_ctx, MSG_INFO, "%s%s",
 274                                 WPS_EVENT_NEW_AP_SETTINGS, _buf);
 275                         os_free(_buf);
 276                 }
 277         } else
 278                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS);
 279
 280         if (hapd->conf->wps_cred_processing == 1)
 281                 return 0;
 282
 283         os_memcpy(hapd->wps->ssid, cred->ssid, cred->ssid_len);
 284         hapd->wps->ssid_len = cred->ssid_len;
 285         hapd->wps->encr_types = cred->encr_type;
 286         hapd->wps->auth_types = cred->auth_type;
 287         if (cred->key_len == 0) {
 288                 os_free(hapd->wps->network_key);
 289                 hapd->wps->network_key = NULL;
 290                 hapd->wps->network_key_len = 0;
 291         } else {
 292                 if (hapd->wps->network_key == NULL ||
 293                     hapd->wps->network_key_len < cred->key_len) {
 294                         hapd->wps->network_key_len = 0;
 295                         os_free(hapd->wps->network_key);
 296                         hapd->wps->network_key = os_malloc(cred->key_len);
 297                         if (hapd->wps->network_key == NULL)
 298                                 return -1;
 299                 }
 300                 hapd->wps->network_key_len = cred->key_len;
 301                 os_memcpy(hapd->wps->network_key, cred->key, cred->key_len);
 302         }
 303         hapd->wps->wps_state = WPS_STATE_CONFIGURED;
 304
 305         len = os_strlen(hapd->iface->config_fname) + 5;
 306         tmp_fname = os_malloc(len);
 307         if (tmp_fname == NULL)
 308                 return -1;
 309         os_snprintf(tmp_fname, len, "%s-new", hapd->iface->config_fname);
 310
 311         oconf = fopen(hapd->iface->config_fname, "r");
 312         if (oconf == NULL) {
 313                 wpa_printf(MSG_WARNING, "WPS: Could not open current "
 314                            "configuration file");
 315                 os_free(tmp_fname);
 316                 return -1;
 317         }
 318
 319         nconf = fopen(tmp_fname, "w");
 320         if (nconf == NULL) {
 321                 wpa_printf(MSG_WARNING, "WPS: Could not write updated "
 322                            "configuration file");
 323                 os_free(tmp_fname);
 324                 fclose(oconf);
 325                 return -1;
 326         }
 327
 328         fprintf(nconf, "# WPS configuration - START\n");
 329
 330         fprintf(nconf, "wps_state=2\n");
 331
 332         fprintf(nconf, "ssid=");
 333         for (i = 0; i < cred->ssid_len; i++)
 334                 fputc(cred->ssid[i], nconf);
 335         fprintf(nconf, "\n");
 336
 337         if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
 338             (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
 339                 wpa = 3;
 340         else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
 341                 wpa = 2;
 342         else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
 343                 wpa = 1;
 344         else
 345                 wpa = 0;
 346
 347         if (wpa) {
 348                 char *prefix;
 349                 fprintf(nconf, "wpa=%d\n", wpa);
 350
 351                 fprintf(nconf, "wpa_key_mgmt=");
 352                 prefix = "";
 353                 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA)) {
 354                         fprintf(nconf, "WPA-EAP");
 355                         prefix = " ";
 356                 }
 357                 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK))
 358                         fprintf(nconf, "%sWPA-PSK", prefix);
 359                 fprintf(nconf, "\n");
 360
 361                 fprintf(nconf, "wpa_pairwise=");
 362                 prefix = "";
 363                 if (cred->encr_type & WPS_ENCR_AES) {
 364                         fprintf(nconf, "CCMP");
 365                         prefix = " ";
 366                 }
 367                 if (cred->encr_type & WPS_ENCR_TKIP) {
 368                         fprintf(nconf, "%sTKIP", prefix);
 369                 }
 370                 fprintf(nconf, "\n");
 371
 372                 if (cred->key_len >= 8 && cred->key_len < 64) {
 373                         fprintf(nconf, "wpa_passphrase=");
 374                         for (i = 0; i < cred->key_len; i++)
 375                                 fputc(cred->key[i], nconf);
 376                         fprintf(nconf, "\n");
 377                 } else if (cred->key_len == 64) {
 378                         fprintf(nconf, "wpa_psk=");
 379                         for (i = 0; i < cred->key_len; i++)
 380                                 fputc(cred->key[i], nconf);
 381                         fprintf(nconf, "\n");
 382                 } else {
 383                         wpa_printf(MSG_WARNING, "WPS: Invalid key length %lu "
 384                                    "for WPA/WPA2",
 385                                    (unsigned long) cred->key_len);
 386                 }
 387
 388                 fprintf(nconf, "auth_algs=1\n");
 389         } else {
 390                 if ((cred->auth_type & WPS_AUTH_OPEN) &&
 391                     (cred->auth_type & WPS_AUTH_SHARED))
 392                         fprintf(nconf, "auth_algs=3\n");
 393                 else if (cred->auth_type & WPS_AUTH_SHARED)
 394                         fprintf(nconf, "auth_algs=2\n");
 395                 else
 396                         fprintf(nconf, "auth_algs=1\n");
 397
 398                 if (cred->encr_type & WPS_ENCR_WEP && cred->key_idx <= 4) {
 399                         int key_idx = cred->key_idx;
 400                         if (key_idx)
 401                                 key_idx--;
 402                         fprintf(nconf, "wep_default_key=%d\n", key_idx);
 403                         fprintf(nconf, "wep_key%d=", key_idx);
 404                         if (cred->key_len == 10 || cred->key_len == 26) {
 405                                 /* WEP key as a hex string */
 406                                 for (i = 0; i < cred->key_len; i++)
 407                                         fputc(cred->key[i], nconf);
 408                         } else {
 409                                 /* Raw WEP key; convert to hex */
 410                                 for (i = 0; i < cred->key_len; i++)
 411                                         fprintf(nconf, "%02x", cred->key[i]);
 412                         }
 413                         fprintf(nconf, "\n");
 414                 }
 415         }
 416
 417         fprintf(nconf, "# WPS configuration - END\n");
 418
 419         multi_bss = 0;
 420         while (fgets(buf, sizeof(buf), oconf)) {
 421                 if (os_strncmp(buf, "bss=", 4) == 0)
 422                         multi_bss = 1;
 423                 if (!multi_bss &&
 424                     (str_starts(buf, "ssid=") ||
 425                      str_starts(buf, "auth_algs=") ||
 426                      str_starts(buf, "wps_state=") ||
 427                      str_starts(buf, "wpa=") ||
 428                      str_starts(buf, "wpa_psk=") ||
 429                      str_starts(buf, "wpa_pairwise=") ||
 430                      str_starts(buf, "rsn_pairwise=") ||
 431                      str_starts(buf, "wpa_key_mgmt=") ||
 432                      str_starts(buf, "wpa_passphrase="))) {
 433                         fprintf(nconf, "#WPS# %s", buf);
 434                 } else
 435                         fprintf(nconf, "%s", buf);
 436         }
 437
 438         fclose(nconf);
 439         fclose(oconf);
 440
 441         if (rename(tmp_fname, hapd->iface->config_fname) < 0) {
 442                 wpa_printf(MSG_WARNING, "WPS: Failed to rename the updated "
 443                            "configuration file: %s", strerror(errno));
 444                 os_free(tmp_fname);
 445                 return -1;
 446         }
 447
 448         os_free(tmp_fname);
 449
 450         /* Schedule configuration reload after short period of time to allow
 451          * EAP-WSC to be finished.
 452          */
 453         eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface,
 454                                NULL);
 455
 456         /* TODO: dualband AP may need to update multiple configuration files */
 457
 458         wpa_printf(MSG_DEBUG, "WPS: AP configuration updated");
 459
 460         return 0;
 461 }
 462
 463
 464 static void hostapd_wps_reenable_ap_pin(void *eloop_data, void *user_ctx)
 465 {
 466         struct hostapd_data *hapd = eloop_data;
 467
 468         if (hapd->conf->ap_setup_locked)
 469                 return;
 470
 471         wpa_printf(MSG_DEBUG, "WPS: Re-enable AP PIN");
 472         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
 473         hapd->wps->ap_setup_locked = 0;
 474         wps_registrar_update_ie(hapd->wps->registrar);
 475 }
 476
 477
 478 static int wps_pwd_auth_fail(struct hostapd_data *hapd, void *ctx)
 479 {
 480         struct wps_event_pwd_auth_fail *data = ctx;
 481
 482         if (!data->enrollee || hapd->conf->ap_pin == NULL || hapd->wps == NULL)
 483                 return 0;
 484
 485         /*
 486          * Registrar failed to prove its knowledge of the AP PIN. Lock AP setup
 487          * for some time if this happens multiple times to slow down brute
 488          * force attacks.
 489          */
 490         hapd->ap_pin_failures++;
 491         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
 492                    hapd->ap_pin_failures);
 493         if (hapd->ap_pin_failures < 3)
 494                 return 0;
 495
 496         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_LOCKED);
 497         hapd->wps->ap_setup_locked = 1;
 498
 499         wps_registrar_update_ie(hapd->wps->registrar);
 500
 501         if (!hapd->conf->ap_setup_locked) {
 502                 if (hapd->ap_pin_lockout_time == 0)
 503                         hapd->ap_pin_lockout_time = 60;
 504                 else if (hapd->ap_pin_lockout_time < 365 * 24 * 60 * 60 &&
 505                          (hapd->ap_pin_failures % 3) == 0)
 506                         hapd->ap_pin_lockout_time *= 2;
 507
 508                 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN for %u seconds",
 509                            hapd->ap_pin_lockout_time);
 510                 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
 511                 eloop_register_timeout(hapd->ap_pin_lockout_time, 0,
 512                                        hostapd_wps_reenable_ap_pin, hapd,
 513                                        NULL);
 514         }
 515
 516         return 0;
 517 }
 518
 519
 520 static void hostapd_pwd_auth_fail(struct hostapd_data *hapd,
 521                                   struct wps_event_pwd_auth_fail *data)
 522 {
 523         hostapd_wps_for_each(hapd, wps_pwd_auth_fail, data);
 524 }
 525
 526
 527 static void hostapd_wps_event_cb(void *ctx, enum wps_event event,
 528                                  union wps_event_data *data)
 529 {
 530         struct hostapd_data *hapd = ctx;
 531
 532         if (event == WPS_EV_PWD_AUTH_FAIL)
 533                 hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail);
 534 }
 535
 536
 537 static void hostapd_wps_clear_ies(struct hostapd_data *hapd)
 538 {
 539         wpabuf_free(hapd->wps_beacon_ie);
 540         hapd->wps_beacon_ie = NULL;
 541
 542         wpabuf_free(hapd->wps_probe_resp_ie);
 543         hapd->wps_probe_resp_ie = NULL;
 544
 545         hapd->drv.set_ap_wps_ie(hapd);
 546 }
 547
 548
 549 static int get_uuid_cb(struct hostapd_iface *iface, void *ctx)
 550 {
 551         const u8 **uuid = ctx;
 552         size_t j;
 553
 554         if (iface == NULL)
 555                 return 0;
 556         for (j = 0; j < iface->num_bss; j++) {
 557                 struct hostapd_data *hapd = iface->bss[j];
 558                 if (hapd->wps && !is_nil_uuid(hapd->wps->uuid)) {
 559                         *uuid = hapd->wps->uuid;
 560                         return 1;
 561                 }
 562         }
 563
 564         return 0;
 565 }
 566
 567
 568 static const u8 * get_own_uuid(struct hostapd_iface *iface)
 569 {
 570         const u8 *uuid;
 571         if (iface->for_each_interface == NULL)
 572                 return NULL;
 573         uuid = NULL;
 574         iface->for_each_interface(iface->interfaces, get_uuid_cb, &uuid);
 575         return uuid;
 576 }
 577
 578
 579 static int count_interface_cb(struct hostapd_iface *iface, void *ctx)
 580 {
 581         int *count= ctx;
 582         (*count)++;
 583         return 0;
 584 }
 585
 586
 587 static int interface_count(struct hostapd_iface *iface)
 588 {
 589         int count = 0;
 590         if (iface->for_each_interface == NULL)
 591                 return 0;
 592         iface->for_each_interface(iface->interfaces, count_interface_cb,
 593                                   &count);
 594         return count;
 595 }
 596
 597
 598 int hostapd_init_wps(struct hostapd_data *hapd,
 599                      struct hostapd_bss_config *conf)
 600 {
 601         struct wps_context *wps;
 602         struct wps_registrar_config cfg;
 603
 604         if (conf->wps_state == 0) {
 605                 hostapd_wps_clear_ies(hapd);
 606                 return 0;
 607         }
 608
 609         wps = os_zalloc(sizeof(*wps));
 610         if (wps == NULL)
 611                 return -1;
 612
 613         wps->cred_cb = hostapd_wps_cred_cb;
 614         wps->event_cb = hostapd_wps_event_cb;
 615         wps->cb_ctx = hapd;
 616
 617         os_memset(&cfg, 0, sizeof(cfg));
 618         wps->wps_state = hapd->conf->wps_state;
 619         wps->ap_setup_locked = hapd->conf->ap_setup_locked;
 620         if (is_nil_uuid(hapd->conf->uuid)) {
 621                 const u8 *uuid;
 622                 uuid = get_own_uuid(hapd->iface);
 623                 if (uuid) {
 624                         os_memcpy(wps->uuid, uuid, UUID_LEN);
 625                         wpa_hexdump(MSG_DEBUG, "WPS: Clone UUID from another "
 626                                     "interface", wps->uuid, UUID_LEN);
 627                 } else {
 628                         uuid_gen_mac_addr(hapd->own_addr, wps->uuid);
 629                         wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
 630                                     "address", wps->uuid, UUID_LEN);
 631                 }
 632         } else {
 633                 os_memcpy(wps->uuid, hapd->conf->uuid, UUID_LEN);
 634                 wpa_hexdump(MSG_DEBUG, "WPS: Use configured UUID",
 635                             wps->uuid, UUID_LEN);
 636         }
 637         wps->ssid_len = hapd->conf->ssid.ssid_len;
 638         os_memcpy(wps->ssid, hapd->conf->ssid.ssid, wps->ssid_len);
 639         wps->ap = 1;
 640         os_memcpy(wps->dev.mac_addr, hapd->own_addr, ETH_ALEN);
 641         wps->dev.device_name = hapd->conf->device_name ?
 642                 os_strdup(hapd->conf->device_name) : NULL;
 643         wps->dev.manufacturer = hapd->conf->manufacturer ?
 644                 os_strdup(hapd->conf->manufacturer) : NULL;
 645         wps->dev.model_name = hapd->conf->model_name ?
 646                 os_strdup(hapd->conf->model_name) : NULL;
 647         wps->dev.model_number = hapd->conf->model_number ?
 648                 os_strdup(hapd->conf->model_number) : NULL;
 649         wps->dev.serial_number = hapd->conf->serial_number ?
 650                 os_strdup(hapd->conf->serial_number) : NULL;
 651         wps->config_methods =
 652                 wps_config_methods_str2bin(hapd->conf->config_methods);
 653 #ifdef CONFIG_WPS2
 654         if ((wps->config_methods &
 655              (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
 656               WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
 657                 wpa_printf(MSG_INFO, "WPS: Converting display to "
 658                            "virtual_display for WPS 2.0 compliance");
 659                 wps->config_methods |= WPS_CONFIG_VIRT_DISPLAY;
 660         }
 661         if ((wps->config_methods &
 662              (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
 663               WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
 664                 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
 665                            "virtual_push_button for WPS 2.0 compliance");
 666                 wps->config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
 667         }
 668 #endif /* CONFIG_WPS2 */
 669         if (hapd->conf->device_type &&
 670             wps_dev_type_str2bin(hapd->conf->device_type,
 671                                  wps->dev.pri_dev_type) < 0) {
 672                 wpa_printf(MSG_ERROR, "WPS: Invalid device_type");
 673                 os_free(wps);
 674                 return -1;
 675         }
 676         wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version);
 677         wps->dev.rf_bands = hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
 678                 WPS_RF_50GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
 679
 680         if (conf->wpa & WPA_PROTO_RSN) {
 681                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
 682                         wps->auth_types |= WPS_AUTH_WPA2PSK;
 683                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
 684                         wps->auth_types |= WPS_AUTH_WPA2;
 685
 686                 if (conf->rsn_pairwise & WPA_CIPHER_CCMP)
 687                         wps->encr_types |= WPS_ENCR_AES;
 688                 if (conf->rsn_pairwise & WPA_CIPHER_TKIP)
 689                         wps->encr_types |= WPS_ENCR_TKIP;
 690         }
 691
 692         if (conf->wpa & WPA_PROTO_WPA) {
 693                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
 694                         wps->auth_types |= WPS_AUTH_WPAPSK;
 695                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
 696                         wps->auth_types |= WPS_AUTH_WPA;
 697
 698                 if (conf->wpa_pairwise & WPA_CIPHER_CCMP)
 699                         wps->encr_types |= WPS_ENCR_AES;
 700                 if (conf->wpa_pairwise & WPA_CIPHER_TKIP)
 701                         wps->encr_types |= WPS_ENCR_TKIP;
 702         }
 703
 704         if (conf->ssid.security_policy == SECURITY_PLAINTEXT) {
 705                 wps->encr_types |= WPS_ENCR_NONE;
 706                 wps->auth_types |= WPS_AUTH_OPEN;
 707         } else if (conf->ssid.security_policy == SECURITY_STATIC_WEP) {
 708                 wps->encr_types |= WPS_ENCR_WEP;
 709                 if (conf->auth_algs & WPA_AUTH_ALG_OPEN)
 710                         wps->auth_types |= WPS_AUTH_OPEN;
 711                 if (conf->auth_algs & WPA_AUTH_ALG_SHARED)
 712                         wps->auth_types |= WPS_AUTH_SHARED;
 713         } else if (conf->ssid.security_policy == SECURITY_IEEE_802_1X) {
 714                 wps->auth_types |= WPS_AUTH_OPEN;
 715                 if (conf->default_wep_key_len)
 716                         wps->encr_types |= WPS_ENCR_WEP;
 717                 else
 718                         wps->encr_types |= WPS_ENCR_NONE;
 719         }
 720
 721         if (conf->ssid.wpa_psk_file) {
 722                 /* Use per-device PSKs */
 723         } else if (conf->ssid.wpa_passphrase) {
 724                 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase);
 725                 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase);
 726         } else if (conf->ssid.wpa_psk) {
 727                 wps->network_key = os_malloc(2 * PMK_LEN + 1);
 728                 if (wps->network_key == NULL) {
 729                         os_free(wps);
 730                         return -1;
 731                 }
 732                 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1,
 733                                  conf->ssid.wpa_psk->psk, PMK_LEN);
 734                 wps->network_key_len = 2 * PMK_LEN;
 735         } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) {
 736                 wps->network_key = os_malloc(conf->ssid.wep.len[0]);
 737                 if (wps->network_key == NULL) {
 738                         os_free(wps);
 739                         return -1;
 740                 }
 741                 os_memcpy(wps->network_key, conf->ssid.wep.key[0],
 742                           conf->ssid.wep.len[0]);
 743                 wps->network_key_len = conf->ssid.wep.len[0];
 744         }
 745
 746         if (conf->ssid.wpa_psk) {
 747                 os_memcpy(wps->psk, conf->ssid.wpa_psk->psk, PMK_LEN);
 748                 wps->psk_set = 1;
 749         }
 750
 751         if (conf->wps_state == WPS_STATE_NOT_CONFIGURED) {
 752                 /* Override parameters to enable security by default */
 753                 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
 754                 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
 755         }
 756
 757         wps->ap_settings = conf->ap_settings;
 758         wps->ap_settings_len = conf->ap_settings_len;
 759
 760         cfg.new_psk_cb = hostapd_wps_new_psk_cb;
 761         cfg.set_ie_cb = hostapd_wps_set_ie_cb;
 762         cfg.pin_needed_cb = hostapd_wps_pin_needed_cb;
 763         cfg.reg_success_cb = hostapd_wps_reg_success_cb;
 764         cfg.enrollee_seen_cb = hostapd_wps_enrollee_seen_cb;
 765         cfg.cb_ctx = hapd;
 766         cfg.skip_cred_build = conf->skip_cred_build;
 767         cfg.extra_cred = conf->extra_cred;
 768         cfg.extra_cred_len = conf->extra_cred_len;
 769         cfg.disable_auto_conf = (hapd->conf->wps_cred_processing == 1) &&
 770                 conf->skip_cred_build;
 771         if (conf->ssid.security_policy == SECURITY_STATIC_WEP)
 772                 cfg.static_wep_only = 1;
 773         cfg.dualband = interface_count(hapd->iface) > 1;
 774         if (cfg.dualband)
 775                 wpa_printf(MSG_DEBUG, "WPS: Dualband AP");
 776
 777         wps->registrar = wps_registrar_init(wps, &cfg);
 778         if (wps->registrar == NULL) {
 779                 wpa_printf(MSG_ERROR, "Failed to initialize WPS Registrar");
 780                 os_free(wps->network_key);
 781                 os_free(wps);
 782                 return -1;
 783         }
 784
 785 #ifdef CONFIG_WPS_UPNP
 786         wps->friendly_name = hapd->conf->friendly_name;
 787         wps->manufacturer_url = hapd->conf->manufacturer_url;
 788         wps->model_description = hapd->conf->model_description;
 789         wps->model_url = hapd->conf->model_url;
 790         wps->upc = hapd->conf->upc;
 791
 792         if (hostapd_wps_upnp_init(hapd, wps) < 0) {
 793                 wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP");
 794                 wps_registrar_deinit(wps->registrar);
 795                 os_free(wps->network_key);
 796                 os_free(wps);
 797                 return -1;
 798         }
 799 #endif /* CONFIG_WPS_UPNP */
 800
 801         hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd);
 802
 803         hapd->wps = wps;
 804
 805         return 0;
 806 }
 807
 808
 809 void hostapd_deinit_wps(struct hostapd_data *hapd)
 810 {
 811         eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
 812         eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
 813         if (hapd->wps == NULL)
 814                 return;
 815 #ifdef CONFIG_WPS_UPNP
 816         hostapd_wps_upnp_deinit(hapd);
 817 #endif /* CONFIG_WPS_UPNP */
 818         wps_registrar_deinit(hapd->wps->registrar);
 819         os_free(hapd->wps->network_key);
 820         wps_device_data_free(&hapd->wps->dev);
 821         wpabuf_free(hapd->wps->dh_pubkey);
 822         wpabuf_free(hapd->wps->dh_privkey);
 823         wpabuf_free(hapd->wps->oob_conf.pubkey_hash);
 824         wpabuf_free(hapd->wps->oob_conf.dev_password);
 825         wps_free_pending_msgs(hapd->wps->upnp_msgs);
 826         os_free(hapd->wps);
 827         hapd->wps = NULL;
 828         hostapd_wps_clear_ies(hapd);
 829 }
 830
 831
 832 void hostapd_update_wps(struct hostapd_data *hapd)
 833 {
 834         if (hapd->wps == NULL)
 835                 return;
 836
 837 #ifdef CONFIG_WPS_UPNP
 838         hapd->wps->friendly_name = hapd->conf->friendly_name;
 839         hapd->wps->manufacturer_url = hapd->conf->manufacturer_url;
 840         hapd->wps->model_description = hapd->conf->model_description;
 841         hapd->wps->model_url = hapd->conf->model_url;
 842         hapd->wps->upc = hapd->conf->upc;
 843 #endif /* CONFIG_WPS_UPNP */
 844
 845         if (hapd->conf->wps_state)
 846                 wps_registrar_update_ie(hapd->wps->registrar);
 847         else
 848                 hostapd_deinit_wps(hapd);
 849 }
 850
 851
 852 struct wps_add_pin_data {
 853         const u8 *addr;
 854         const u8 *uuid;
 855         const u8 *pin;
 856         size_t pin_len;
 857         int timeout;
 858         int added;
 859 };
 860
 861
 862 static int wps_add_pin(struct hostapd_data *hapd, void *ctx)
 863 {
 864         struct wps_add_pin_data *data = ctx;
 865         int ret;
 866
 867         if (hapd->wps == NULL)
 868                 return 0;
 869         ret = wps_registrar_add_pin(hapd->wps->registrar, data->addr,
 870                                     data->uuid, data->pin, data->pin_len,
 871                                     data->timeout);
 872         if (ret == 0)
 873                 data->added++;
 874         return ret;
 875 }
 876
 877
 878 int hostapd_wps_add_pin(struct hostapd_data *hapd, const u8 *addr,
 879                         const char *uuid, const char *pin, int timeout)
 880 {
 881         u8 u[UUID_LEN];
 882         struct wps_add_pin_data data;
 883
 884         data.addr = addr;
 885         data.uuid = u;
 886         data.pin = (const u8 *) pin;
 887         data.pin_len = os_strlen(pin);
 888         data.timeout = timeout;
 889         data.added = 0;
 890
 891         if (os_strcmp(uuid, "any") == 0)
 892                 data.uuid = NULL;
 893         else {
 894                 if (uuid_str2bin(uuid, u))
 895                         return -1;
 896                 data.uuid = u;
 897         }
 898         if (hostapd_wps_for_each(hapd, wps_add_pin, &data) < 0)
 899                 return -1;
 900         return data.added ? 0 : -1;
 901 }
 902
 903
 904 static int wps_button_pushed(struct hostapd_data *hapd, void *ctx)
 905 {
 906         if (hapd->wps == NULL)
 907                 return 0;
 908         return wps_registrar_button_pushed(hapd->wps->registrar);
 909 }
 910
 911
 912 int hostapd_wps_button_pushed(struct hostapd_data *hapd)
 913 {
 914         return hostapd_wps_for_each(hapd, wps_button_pushed, NULL);
 915 }
 916
 917
 918 #ifdef CONFIG_WPS_OOB
 919 int hostapd_wps_start_oob(struct hostapd_data *hapd, char *device_type,
 920                           char *path, char *method, char *name)
 921 {
 922         struct wps_context *wps = hapd->wps;
 923         struct oob_device_data *oob_dev;
 924
 925         oob_dev = wps_get_oob_device(device_type);
 926         if (oob_dev == NULL)
 927                 return -1;
 928         oob_dev->device_path = path;
 929         oob_dev->device_name = name;
 930         wps->oob_conf.oob_method = wps_get_oob_method(method);
 931
 932         if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) {
 933                 /*
 934                  * Use pre-configured DH keys in order to be able to write the
 935                  * key hash into the OOB file.
 936                  */
 937                 wpabuf_free(wps->dh_pubkey);
 938                 wpabuf_free(wps->dh_privkey);
 939                 wps->dh_privkey = NULL;
 940                 wps->dh_pubkey = dh_init(dh_groups_get(WPS_DH_GROUP),
 941                                          &wps->dh_privkey);
 942                 wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
 943                 if (wps->dh_pubkey == NULL) {
 944                         wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
 945                                    "Diffie-Hellman handshake");
 946                         return -1;
 947                 }
 948         }
 949
 950         if (wps_process_oob(wps, oob_dev, 1) < 0)
 951                 goto error;
 952
 953         if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
 954              wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
 955             hostapd_wps_add_pin(hapd, NULL, "any",
 956                                 wpabuf_head(wps->oob_conf.dev_password), 0) <
 957             0)
 958                 goto error;
 959
 960         return 0;
 961
 962 error:
 963         wpabuf_free(wps->dh_pubkey);
 964         wps->dh_pubkey = NULL;
 965         wpabuf_free(wps->dh_privkey);
 966         wps->dh_privkey = NULL;
 967         return -1;
 968 }
 969 #endif /* CONFIG_WPS_OOB */
 970
 971
 972 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr,
 973                                     const u8 *ie, size_t ie_len)
 974 {
 975         struct hostapd_data *hapd = ctx;
 976         struct wpabuf *wps_ie;
 977         struct ieee802_11_elems elems;
 978
 979         if (hapd->wps == NULL)
 980                 return 0;
 981
 982         if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) {
 983                 wpa_printf(MSG_DEBUG, "WPS: Could not parse ProbeReq from "
 984                            MACSTR, MAC2STR(addr));
 985                 return 0;
 986         }
 987
 988         if (elems.ssid && elems.ssid_len > 0 &&
 989             (elems.ssid_len != hapd->conf->ssid.ssid_len ||
 990              os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) !=
 991              0))
 992                 return 0; /* Not for us */
 993
 994         wps_ie = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
 995         if (wps_ie == NULL)
 996                 return 0;
 997         if (wps_validate_probe_req(wps_ie, addr) < 0) {
 998                 wpabuf_free(wps_ie);
 999                 return 0;
1000         }
1001
1002         if (wpabuf_len(wps_ie) > 0) {
1003                 int p2p_wildcard = 0;
1004 #ifdef CONFIG_P2P
1005                 if (elems.ssid && elems.ssid_len == P2P_WILDCARD_SSID_LEN &&
1006                     os_memcmp(elems.ssid, P2P_WILDCARD_SSID,
1007                               P2P_WILDCARD_SSID_LEN) == 0)
1008                         p2p_wildcard = 1;
1009 #endif /* CONFIG_P2P */
1010                 wps_registrar_probe_req_rx(hapd->wps->registrar, addr, wps_ie,
1011                                            p2p_wildcard);
1012 #ifdef CONFIG_WPS_UPNP
1013                 /* FIX: what exactly should be included in the WLANEvent?
1014                  * WPS attributes? Full ProbeReq frame? */
1015                 if (!p2p_wildcard)
1016                         upnp_wps_device_send_wlan_event(
1017                                 hapd->wps_upnp, addr,
1018                                 UPNP_WPS_WLANEVENT_TYPE_PROBE, wps_ie);
1019 #endif /* CONFIG_WPS_UPNP */
1020         }
1021
1022         wpabuf_free(wps_ie);
1023
1024         return 0;
1025 }
1026
1027
1028 #ifdef CONFIG_WPS_UPNP
1029
1030 static int hostapd_rx_req_put_wlan_response(
1031         void *priv, enum upnp_wps_wlanevent_type ev_type,
1032         const u8 *mac_addr, const struct wpabuf *msg,
1033         enum wps_msg_type msg_type)
1034 {
1035         struct hostapd_data *hapd = priv;
1036         struct sta_info *sta;
1037         struct upnp_pending_message *p;
1038
1039         wpa_printf(MSG_DEBUG, "WPS UPnP: PutWLANResponse ev_type=%d mac_addr="
1040                    MACSTR, ev_type, MAC2STR(mac_addr));
1041         wpa_hexdump(MSG_MSGDUMP, "WPS UPnP: PutWLANResponse NewMessage",
1042                     wpabuf_head(msg), wpabuf_len(msg));
1043         if (ev_type != UPNP_WPS_WLANEVENT_TYPE_EAP) {
1044                 wpa_printf(MSG_DEBUG, "WPS UPnP: Ignored unexpected "
1045                            "PutWLANResponse WLANEventType %d", ev_type);
1046                 return -1;
1047         }
1048
1049         /*
1050          * EAP response to ongoing to WPS Registration. Send it to EAP-WSC
1051          * server implementation for delivery to the peer.
1052          */
1053
1054         sta = ap_get_sta(hapd, mac_addr);
1055 #ifndef CONFIG_WPS_STRICT
1056         if (!sta) {
1057                 /*
1058                  * Workaround - Intel wsccmd uses bogus NewWLANEventMAC:
1059                  * Pick STA that is in an ongoing WPS registration without
1060                  * checking the MAC address.
1061                  */
1062                 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found based "
1063                            "on NewWLANEventMAC; try wildcard match");
1064                 for (sta = hapd->sta_list; sta; sta = sta->next) {
1065                         if (sta->eapol_sm && (sta->flags & WLAN_STA_WPS))
1066                                 break;
1067                 }
1068         }
1069 #endif /* CONFIG_WPS_STRICT */
1070
1071         if (!sta) {
1072                 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found");
1073                 return 0;
1074         }
1075
1076         p = os_zalloc(sizeof(*p));
1077         if (p == NULL)
1078                 return -1;
1079         os_memcpy(p->addr, sta->addr, ETH_ALEN);
1080         p->msg = wpabuf_dup(msg);
1081         p->type = msg_type;
1082         p->next = hapd->wps->upnp_msgs;
1083         hapd->wps->upnp_msgs = p;
1084
1085         return eapol_auth_eap_pending_cb(sta->eapol_sm, sta->eapol_sm->eap);
1086 }
1087
1088
1089 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
1090                                  struct wps_context *wps)
1091 {
1092         struct upnp_wps_device_ctx *ctx;
1093
1094         if (!hapd->conf->upnp_iface)
1095                 return 0;
1096         ctx = os_zalloc(sizeof(*ctx));
1097         if (ctx == NULL)
1098                 return -1;
1099
1100         ctx->rx_req_put_wlan_response = hostapd_rx_req_put_wlan_response;
1101         if (hapd->conf->ap_pin)
1102                 ctx->ap_pin = os_strdup(hapd->conf->ap_pin);
1103
1104         hapd->wps_upnp = upnp_wps_device_init(ctx, wps, hapd);
1105         if (hapd->wps_upnp == NULL) {
1106                 os_free(ctx);
1107                 return -1;
1108         }
1109         wps->wps_upnp = hapd->wps_upnp;
1110
1111         if (upnp_wps_device_start(hapd->wps_upnp, hapd->conf->upnp_iface)) {
1112                 upnp_wps_device_deinit(hapd->wps_upnp);
1113                 hapd->wps_upnp = NULL;
1114                 return -1;
1115         }
1116
1117         return 0;
1118 }
1119
1120
1121 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd)
1122 {
1123         upnp_wps_device_deinit(hapd->wps_upnp);
1124 }
1125
1126 #endif /* CONFIG_WPS_UPNP */
1127
1128
1129 int hostapd_wps_get_mib_sta(struct hostapd_data *hapd, const u8 *addr,
1130                             char *buf, size_t buflen)
1131 {
1132         if (hapd->wps == NULL)
1133                 return 0;
1134         return wps_registrar_get_info(hapd->wps->registrar, addr, buf, buflen);
1135 }
1136
1137
1138 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
1139 {
1140         struct hostapd_data *hapd = eloop_data;
1141         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
1142         hostapd_wps_ap_pin_disable(hapd);
1143 }
1144
1145
1146 static void hostapd_wps_ap_pin_enable(struct hostapd_data *hapd, int timeout)
1147 {
1148         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
1149         hapd->ap_pin_failures = 0;
1150         hapd->conf->ap_setup_locked = 0;
1151         if (hapd->wps->ap_setup_locked) {
1152                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
1153                 hapd->wps->ap_setup_locked = 0;
1154                 wps_registrar_update_ie(hapd->wps->registrar);
1155         }
1156         eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1157         if (timeout > 0)
1158                 eloop_register_timeout(timeout, 0,
1159                                        hostapd_wps_ap_pin_timeout, hapd, NULL);
1160 }
1161
1162
1163 static int wps_ap_pin_disable(struct hostapd_data *hapd, void *ctx)
1164 {
1165         os_free(hapd->conf->ap_pin);
1166         hapd->conf->ap_pin = NULL;
1167 #ifdef CONFIG_WPS_UPNP
1168         upnp_wps_set_ap_pin(hapd->wps_upnp, NULL);
1169 #endif /* CONFIG_WPS_UPNP */
1170         eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1171         return 0;
1172 }
1173
1174
1175 void hostapd_wps_ap_pin_disable(struct hostapd_data *hapd)
1176 {
1177         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
1178         hostapd_wps_for_each(hapd, wps_ap_pin_disable, NULL);
1179 }
1180
1181
1182 struct wps_ap_pin_data {
1183         char pin_txt[9];
1184         int timeout;
1185 };
1186
1187
1188 static int wps_ap_pin_set(struct hostapd_data *hapd, void *ctx)
1189 {
1190         struct wps_ap_pin_data *data = ctx;
1191         os_free(hapd->conf->ap_pin);
1192         hapd->conf->ap_pin = os_strdup(data->pin_txt);
1193 #ifdef CONFIG_WPS_UPNP
1194         upnp_wps_set_ap_pin(hapd->wps_upnp, data->pin_txt);
1195 #endif /* CONFIG_WPS_UPNP */
1196         hostapd_wps_ap_pin_enable(hapd, data->timeout);
1197         return 0;
1198 }
1199
1200
1201 const char * hostapd_wps_ap_pin_random(struct hostapd_data *hapd, int timeout)
1202 {
1203         unsigned int pin;
1204         struct wps_ap_pin_data data;
1205
1206         pin = wps_generate_pin();
1207         os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%u", pin);
1208         data.timeout = timeout;
1209         hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
1210         return hapd->conf->ap_pin;
1211 }
1212
1213
1214 const char * hostapd_wps_ap_pin_get(struct hostapd_data *hapd)
1215 {
1216         return hapd->conf->ap_pin;
1217 }
1218
1219
1220 int hostapd_wps_ap_pin_set(struct hostapd_data *hapd, const char *pin,
1221                            int timeout)
1222 {
1223         struct wps_ap_pin_data data;
1224         int ret;
1225
1226         ret = os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%s", pin);
1227         if (ret < 0 || ret >= (int) sizeof(data.pin_txt))
1228                 return -1;
1229         data.timeout = timeout;
1230         return hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
1231 }