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 "ap_drv_ops.h"
  32 #include "beacon.h"
  33 #include "sta_info.h"
  34 #include "wps_hostapd.h"
  35
  36
  37 #ifdef CONFIG_WPS_UPNP
  38 #include "wps/wps_upnp.h"
  39 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
  40                                  struct wps_context *wps);
  41 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd);
  42 #endif /* CONFIG_WPS_UPNP */
  43
  44 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, const u8 *da,
  45                                     const u8 *bssid,
  46                                     const u8 *ie, size_t ie_len);
  47 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
  48
  49
  50 struct wps_for_each_data {
  51         int (*func)(struct hostapd_data *h, void *ctx);
  52         void *ctx;
  53 };
  54
  55
  56 static int wps_for_each(struct hostapd_iface *iface, void *ctx)
  57 {
  58         struct wps_for_each_data *data = ctx;
  59         size_t j;
  60
  61         if (iface == NULL)
  62                 return 0;
  63         for (j = 0; j < iface->num_bss; j++) {
  64                 struct hostapd_data *hapd = iface->bss[j];
  65                 int ret = data->func(hapd, data->ctx);
  66                 if (ret)
  67                         return ret;
  68         }
  69
  70         return 0;
  71 }
  72
  73
  74 static int hostapd_wps_for_each(struct hostapd_data *hapd,
  75                                 int (*func)(struct hostapd_data *h, void *ctx),
  76                                 void *ctx)
  77 {
  78         struct hostapd_iface *iface = hapd->iface;
  79         struct wps_for_each_data data;
  80         data.func = func;
  81         data.ctx = ctx;
  82         if (iface->for_each_interface == NULL)
  83                 return wps_for_each(iface, &data);
  84         return iface->for_each_interface(iface->interfaces, wps_for_each,
  85                                          &data);
  86 }
  87
  88
  89 static int hostapd_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
  90                                   size_t psk_len)
  91 {
  92         struct hostapd_data *hapd = ctx;
  93         struct hostapd_wpa_psk *p;
  94         struct hostapd_ssid *ssid = &hapd->conf->ssid;
  95
  96         wpa_printf(MSG_DEBUG, "Received new WPA/WPA2-PSK from WPS for STA "
  97                    MACSTR, MAC2STR(mac_addr));
  98         wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
  99
 100         if (psk_len != PMK_LEN) {
 101                 wpa_printf(MSG_DEBUG, "Unexpected PSK length %lu",
 102                            (unsigned long) psk_len);
 103                 return -1;
 104         }
 105
 106         /* Add the new PSK to runtime PSK list */
 107         p = os_zalloc(sizeof(*p));
 108         if (p == NULL)
 109                 return -1;
 110         os_memcpy(p->addr, mac_addr, ETH_ALEN);
 111         os_memcpy(p->psk, psk, PMK_LEN);
 112
 113         p->next = ssid->wpa_psk;
 114         ssid->wpa_psk = p;
 115
 116         if (ssid->wpa_psk_file) {
 117                 FILE *f;
 118                 char hex[PMK_LEN * 2 + 1];
 119                 /* Add the new PSK to PSK list file */
 120                 f = fopen(ssid->wpa_psk_file, "a");
 121                 if (f == NULL) {
 122                         wpa_printf(MSG_DEBUG, "Failed to add the PSK to "
 123                                    "'%s'", ssid->wpa_psk_file);
 124                         return -1;
 125                 }
 126
 127                 wpa_snprintf_hex(hex, sizeof(hex), psk, psk_len);
 128                 fprintf(f, MACSTR " %s\n", MAC2STR(mac_addr), hex);
 129                 fclose(f);
 130         }
 131
 132         return 0;
 133 }
 134
 135
 136 static int hostapd_wps_set_ie_cb(void *ctx, struct wpabuf *beacon_ie,
 137                                  struct wpabuf *probe_resp_ie)
 138 {
 139         struct hostapd_data *hapd = ctx;
 140         wpabuf_free(hapd->wps_beacon_ie);
 141         hapd->wps_beacon_ie = beacon_ie;
 142         wpabuf_free(hapd->wps_probe_resp_ie);
 143         hapd->wps_probe_resp_ie = probe_resp_ie;
 144         ieee802_11_set_beacon(hapd);
 145         return hostapd_set_ap_wps_ie(hapd);
 146 }
 147
 148
 149 static void hostapd_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
 150                                       const struct wps_device_data *dev)
 151 {
 152         struct hostapd_data *hapd = ctx;
 153         char uuid[40], txt[400];
 154         int len;
 155         char devtype[WPS_DEV_TYPE_BUFSIZE];
 156         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 157                 return;
 158         wpa_printf(MSG_DEBUG, "WPS: PIN needed for E-UUID %s", uuid);
 159         len = os_snprintf(txt, sizeof(txt), WPS_EVENT_PIN_NEEDED
 160                           "%s " MACSTR " [%s|%s|%s|%s|%s|%s]",
 161                           uuid, MAC2STR(dev->mac_addr), dev->device_name,
 162                           dev->manufacturer, dev->model_name,
 163                           dev->model_number, dev->serial_number,
 164                           wps_dev_type_bin2str(dev->pri_dev_type, devtype,
 165                                                sizeof(devtype)));
 166         if (len > 0 && len < (int) sizeof(txt))
 167                 wpa_msg(hapd->msg_ctx, MSG_INFO, "%s", txt);
 168
 169         if (hapd->conf->wps_pin_requests) {
 170                 FILE *f;
 171                 struct os_time t;
 172                 f = fopen(hapd->conf->wps_pin_requests, "a");
 173                 if (f == NULL)
 174                         return;
 175                 os_get_time(&t);
 176                 fprintf(f, "%ld\t%s\t" MACSTR "\t%s\t%s\t%s\t%s\t%s"
 177                         "\t%s\n",
 178                         t.sec, uuid, MAC2STR(dev->mac_addr), dev->device_name,
 179                         dev->manufacturer, dev->model_name, dev->model_number,
 180                         dev->serial_number,
 181                         wps_dev_type_bin2str(dev->pri_dev_type, devtype,
 182                                              sizeof(devtype)));
 183                 fclose(f);
 184         }
 185 }
 186
 187
 188 static void hostapd_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 189                                        const u8 *uuid_e)
 190 {
 191         struct hostapd_data *hapd = ctx;
 192         char uuid[40];
 193         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 194                 return;
 195         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_REG_SUCCESS MACSTR " %s",
 196                 MAC2STR(mac_addr), uuid);
 197         if (hapd->wps_reg_success_cb)
 198                 hapd->wps_reg_success_cb(hapd->wps_reg_success_cb_ctx,
 199                                          mac_addr, uuid_e);
 200 }
 201
 202
 203 static void hostapd_wps_enrollee_seen_cb(void *ctx, const u8 *addr,
 204                                          const u8 *uuid_e,
 205                                          const u8 *pri_dev_type,
 206                                          u16 config_methods,
 207                                          u16 dev_password_id, u8 request_type,
 208                                          const char *dev_name)
 209 {
 210         struct hostapd_data *hapd = ctx;
 211         char uuid[40];
 212         char devtype[WPS_DEV_TYPE_BUFSIZE];
 213         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 214                 return;
 215         if (dev_name == NULL)
 216                 dev_name = "";
 217         wpa_msg_ctrl(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ENROLLEE_SEEN MACSTR
 218                      " %s %s 0x%x %u %u [%s]",
 219                      MAC2STR(addr), uuid,
 220                      wps_dev_type_bin2str(pri_dev_type, devtype,
 221                                           sizeof(devtype)),
 222                      config_methods, dev_password_id, request_type, dev_name);
 223 }
 224
 225
 226 static int str_starts(const char *str, const char *start)
 227 {
 228         return os_strncmp(str, start, os_strlen(start)) == 0;
 229 }
 230
 231
 232 static void wps_reload_config(void *eloop_data, void *user_ctx)
 233 {
 234         struct hostapd_iface *iface = eloop_data;
 235
 236         wpa_printf(MSG_DEBUG, "WPS: Reload configuration data");
 237         if (iface->reload_config(iface) < 0) {
 238                 wpa_printf(MSG_WARNING, "WPS: Failed to reload the updated "
 239                            "configuration");
 240         }
 241 }
 242
 243
 244 static int hapd_wps_cred_cb(struct hostapd_data *hapd, void *ctx)
 245 {
 246         const struct wps_credential *cred = ctx;
 247         FILE *oconf, *nconf;
 248         size_t len, i;
 249         char *tmp_fname;
 250         char buf[1024];
 251         int multi_bss;
 252         int wpa;
 253
 254         if (hapd->wps == NULL)
 255                 return 0;
 256
 257         wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
 258                         cred->cred_attr, cred->cred_attr_len);
 259
 260         wpa_printf(MSG_DEBUG, "WPS: Received new AP Settings");
 261         wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
 262         wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
 263                    cred->auth_type);
 264         wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
 265         wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
 266         wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
 267                         cred->key, cred->key_len);
 268         wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
 269                    MAC2STR(cred->mac_addr));
 270
 271         if ((hapd->conf->wps_cred_processing == 1 ||
 272              hapd->conf->wps_cred_processing == 2) && cred->cred_attr) {
 273                 size_t blen = cred->cred_attr_len * 2 + 1;
 274                 char *_buf = os_malloc(blen);
 275                 if (_buf) {
 276                         wpa_snprintf_hex(_buf, blen,
 277                                          cred->cred_attr, cred->cred_attr_len);
 278                         wpa_msg(hapd->msg_ctx, MSG_INFO, "%s%s",
 279                                 WPS_EVENT_NEW_AP_SETTINGS, _buf);
 280                         os_free(_buf);
 281                 }
 282         } else
 283                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS);
 284
 285         if (hapd->conf->wps_cred_processing == 1)
 286                 return 0;
 287
 288         os_memcpy(hapd->wps->ssid, cred->ssid, cred->ssid_len);
 289         hapd->wps->ssid_len = cred->ssid_len;
 290         hapd->wps->encr_types = cred->encr_type;
 291         hapd->wps->auth_types = cred->auth_type;
 292         if (cred->key_len == 0) {
 293                 os_free(hapd->wps->network_key);
 294                 hapd->wps->network_key = NULL;
 295                 hapd->wps->network_key_len = 0;
 296         } else {
 297                 if (hapd->wps->network_key == NULL ||
 298                     hapd->wps->network_key_len < cred->key_len) {
 299                         hapd->wps->network_key_len = 0;
 300                         os_free(hapd->wps->network_key);
 301                         hapd->wps->network_key = os_malloc(cred->key_len);
 302                         if (hapd->wps->network_key == NULL)
 303                                 return -1;
 304                 }
 305                 hapd->wps->network_key_len = cred->key_len;
 306                 os_memcpy(hapd->wps->network_key, cred->key, cred->key_len);
 307         }
 308         hapd->wps->wps_state = WPS_STATE_CONFIGURED;
 309
 310         len = os_strlen(hapd->iface->config_fname) + 5;
 311         tmp_fname = os_malloc(len);
 312         if (tmp_fname == NULL)
 313                 return -1;
 314         os_snprintf(tmp_fname, len, "%s-new", hapd->iface->config_fname);
 315
 316         oconf = fopen(hapd->iface->config_fname, "r");
 317         if (oconf == NULL) {
 318                 wpa_printf(MSG_WARNING, "WPS: Could not open current "
 319                            "configuration file");
 320                 os_free(tmp_fname);
 321                 return -1;
 322         }
 323
 324         nconf = fopen(tmp_fname, "w");
 325         if (nconf == NULL) {
 326                 wpa_printf(MSG_WARNING, "WPS: Could not write updated "
 327                            "configuration file");
 328                 os_free(tmp_fname);
 329                 fclose(oconf);
 330                 return -1;
 331         }
 332
 333         fprintf(nconf, "# WPS configuration - START\n");
 334
 335         fprintf(nconf, "wps_state=2\n");
 336
 337         fprintf(nconf, "ssid=");
 338         for (i = 0; i < cred->ssid_len; i++)
 339                 fputc(cred->ssid[i], nconf);
 340         fprintf(nconf, "\n");
 341
 342         if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
 343             (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
 344                 wpa = 3;
 345         else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
 346                 wpa = 2;
 347         else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
 348                 wpa = 1;
 349         else
 350                 wpa = 0;
 351
 352         if (wpa) {
 353                 char *prefix;
 354                 fprintf(nconf, "wpa=%d\n", wpa);
 355
 356                 fprintf(nconf, "wpa_key_mgmt=");
 357                 prefix = "";
 358                 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA)) {
 359                         fprintf(nconf, "WPA-EAP");
 360                         prefix = " ";
 361                 }
 362                 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK))
 363                         fprintf(nconf, "%sWPA-PSK", prefix);
 364                 fprintf(nconf, "\n");
 365
 366                 fprintf(nconf, "wpa_pairwise=");
 367                 prefix = "";
 368                 if (cred->encr_type & WPS_ENCR_AES) {
 369                         fprintf(nconf, "CCMP");
 370                         prefix = " ";
 371                 }
 372                 if (cred->encr_type & WPS_ENCR_TKIP) {
 373                         fprintf(nconf, "%sTKIP", prefix);
 374                 }
 375                 fprintf(nconf, "\n");
 376
 377                 if (cred->key_len >= 8 && cred->key_len < 64) {
 378                         fprintf(nconf, "wpa_passphrase=");
 379                         for (i = 0; i < cred->key_len; i++)
 380                                 fputc(cred->key[i], nconf);
 381                         fprintf(nconf, "\n");
 382                 } else if (cred->key_len == 64) {
 383                         fprintf(nconf, "wpa_psk=");
 384                         for (i = 0; i < cred->key_len; i++)
 385                                 fputc(cred->key[i], nconf);
 386                         fprintf(nconf, "\n");
 387                 } else {
 388                         wpa_printf(MSG_WARNING, "WPS: Invalid key length %lu "
 389                                    "for WPA/WPA2",
 390                                    (unsigned long) cred->key_len);
 391                 }
 392
 393                 fprintf(nconf, "auth_algs=1\n");
 394         } else {
 395                 if ((cred->auth_type & WPS_AUTH_OPEN) &&
 396                     (cred->auth_type & WPS_AUTH_SHARED))
 397                         fprintf(nconf, "auth_algs=3\n");
 398                 else if (cred->auth_type & WPS_AUTH_SHARED)
 399                         fprintf(nconf, "auth_algs=2\n");
 400                 else
 401                         fprintf(nconf, "auth_algs=1\n");
 402
 403                 if (cred->encr_type & WPS_ENCR_WEP && cred->key_idx <= 4) {
 404                         int key_idx = cred->key_idx;
 405                         if (key_idx)
 406                                 key_idx--;
 407                         fprintf(nconf, "wep_default_key=%d\n", key_idx);
 408                         fprintf(nconf, "wep_key%d=", key_idx);
 409                         if (cred->key_len == 10 || cred->key_len == 26) {
 410                                 /* WEP key as a hex string */
 411                                 for (i = 0; i < cred->key_len; i++)
 412                                         fputc(cred->key[i], nconf);
 413                         } else {
 414                                 /* Raw WEP key; convert to hex */
 415                                 for (i = 0; i < cred->key_len; i++)
 416                                         fprintf(nconf, "%02x", cred->key[i]);
 417                         }
 418                         fprintf(nconf, "\n");
 419                 }
 420         }
 421
 422         fprintf(nconf, "# WPS configuration - END\n");
 423
 424         multi_bss = 0;
 425         while (fgets(buf, sizeof(buf), oconf)) {
 426                 if (os_strncmp(buf, "bss=", 4) == 0)
 427                         multi_bss = 1;
 428                 if (!multi_bss &&
 429                     (str_starts(buf, "ssid=") ||
 430                      str_starts(buf, "auth_algs=") ||
 431                      str_starts(buf, "wep_default_key=") ||
 432                      str_starts(buf, "wep_key") ||
 433                      str_starts(buf, "wps_state=") ||
 434                      str_starts(buf, "wpa=") ||
 435                      str_starts(buf, "wpa_psk=") ||
 436                      str_starts(buf, "wpa_pairwise=") ||
 437                      str_starts(buf, "rsn_pairwise=") ||
 438                      str_starts(buf, "wpa_key_mgmt=") ||
 439                      str_starts(buf, "wpa_passphrase="))) {
 440                         fprintf(nconf, "#WPS# %s", buf);
 441                 } else
 442                         fprintf(nconf, "%s", buf);
 443         }
 444
 445         fclose(nconf);
 446         fclose(oconf);
 447
 448         if (rename(tmp_fname, hapd->iface->config_fname) < 0) {
 449                 wpa_printf(MSG_WARNING, "WPS: Failed to rename the updated "
 450                            "configuration file: %s", strerror(errno));
 451                 os_free(tmp_fname);
 452                 return -1;
 453         }
 454
 455         os_free(tmp_fname);
 456
 457         /* Schedule configuration reload after short period of time to allow
 458          * EAP-WSC to be finished.
 459          */
 460         eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface,
 461                                NULL);
 462
 463         wpa_printf(MSG_DEBUG, "WPS: AP configuration updated");
 464
 465         return 0;
 466 }
 467
 468
 469 static int hostapd_wps_cred_cb(void *ctx, const struct wps_credential *cred)
 470 {
 471         struct hostapd_data *hapd = ctx;
 472         return hostapd_wps_for_each(hapd, hapd_wps_cred_cb, (void *) cred);
 473 }
 474
 475
 476 static void hostapd_wps_reenable_ap_pin(void *eloop_data, void *user_ctx)
 477 {
 478         struct hostapd_data *hapd = eloop_data;
 479
 480         if (hapd->conf->ap_setup_locked)
 481                 return;
 482
 483         wpa_printf(MSG_DEBUG, "WPS: Re-enable AP PIN");
 484         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
 485         hapd->wps->ap_setup_locked = 0;
 486         wps_registrar_update_ie(hapd->wps->registrar);
 487 }
 488
 489
 490 static int wps_pwd_auth_fail(struct hostapd_data *hapd, void *ctx)
 491 {
 492         struct wps_event_pwd_auth_fail *data = ctx;
 493
 494         if (!data->enrollee || hapd->conf->ap_pin == NULL || hapd->wps == NULL)
 495                 return 0;
 496
 497         /*
 498          * Registrar failed to prove its knowledge of the AP PIN. Lock AP setup
 499          * for some time if this happens multiple times to slow down brute
 500          * force attacks.
 501          */
 502         hapd->ap_pin_failures++;
 503         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u",
 504                    hapd->ap_pin_failures);
 505         if (hapd->ap_pin_failures < 3)
 506                 return 0;
 507
 508         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_LOCKED);
 509         hapd->wps->ap_setup_locked = 1;
 510
 511         wps_registrar_update_ie(hapd->wps->registrar);
 512
 513         if (!hapd->conf->ap_setup_locked) {
 514                 if (hapd->ap_pin_lockout_time == 0)
 515                         hapd->ap_pin_lockout_time = 60;
 516                 else if (hapd->ap_pin_lockout_time < 365 * 24 * 60 * 60 &&
 517                          (hapd->ap_pin_failures % 3) == 0)
 518                         hapd->ap_pin_lockout_time *= 2;
 519
 520                 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN for %u seconds",
 521                            hapd->ap_pin_lockout_time);
 522                 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
 523                 eloop_register_timeout(hapd->ap_pin_lockout_time, 0,
 524                                        hostapd_wps_reenable_ap_pin, hapd,
 525                                        NULL);
 526         }
 527
 528         return 0;
 529 }
 530
 531
 532 static void hostapd_pwd_auth_fail(struct hostapd_data *hapd,
 533                                   struct wps_event_pwd_auth_fail *data)
 534 {
 535         hostapd_wps_for_each(hapd, wps_pwd_auth_fail, data);
 536 }
 537
 538
 539 static const char * wps_event_fail_reason[NUM_WPS_EI_VALUES] = {
 540         "No Error", /* WPS_EI_NO_ERROR */
 541         "TKIP Only Prohibited", /* WPS_EI_SECURITY_TKIP_ONLY_PROHIBITED */
 542         "WEP Prohibited" /* WPS_EI_SECURITY_WEP_PROHIBITED */
 543 };
 544
 545 static void hostapd_wps_event_fail(struct hostapd_data *hapd,
 546                                    struct wps_event_fail *fail)
 547 {
 548         if (fail->error_indication > 0 &&
 549             fail->error_indication < NUM_WPS_EI_VALUES) {
 550                 wpa_msg(hapd->msg_ctx, MSG_INFO,
 551                         WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
 552                         fail->msg, fail->config_error, fail->error_indication,
 553                         wps_event_fail_reason[fail->error_indication]);
 554         } else {
 555                 wpa_msg(hapd->msg_ctx, MSG_INFO,
 556                         WPS_EVENT_FAIL "msg=%d config_error=%d",
 557                         fail->msg, fail->config_error);
 558         }
 559 }
 560
 561
 562 static void hostapd_wps_event_cb(void *ctx, enum wps_event event,
 563                                  union wps_event_data *data)
 564 {
 565         struct hostapd_data *hapd = ctx;
 566
 567         switch (event) {
 568         case WPS_EV_M2D:
 569                 break;
 570         case WPS_EV_FAIL:
 571                 hostapd_wps_event_fail(hapd, &data->fail);
 572                 break;
 573         case WPS_EV_SUCCESS:
 574                 break;
 575         case WPS_EV_PWD_AUTH_FAIL:
 576                 hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail);
 577                 break;
 578         case WPS_EV_PBC_OVERLAP:
 579                 break;
 580         case WPS_EV_PBC_TIMEOUT:
 581                 break;
 582         case WPS_EV_ER_AP_ADD:
 583                 break;
 584         case WPS_EV_ER_AP_REMOVE:
 585                 break;
 586         case WPS_EV_ER_ENROLLEE_ADD:
 587                 break;
 588         case WPS_EV_ER_ENROLLEE_REMOVE:
 589                 break;
 590         case WPS_EV_ER_AP_SETTINGS:
 591                 break;
 592         case WPS_EV_ER_SET_SELECTED_REGISTRAR:
 593                 break;
 594         }
 595         if (hapd->wps_event_cb)
 596                 hapd->wps_event_cb(hapd->wps_event_cb_ctx, event, data);
 597 }
 598
 599
 600 static void hostapd_wps_clear_ies(struct hostapd_data *hapd)
 601 {
 602         wpabuf_free(hapd->wps_beacon_ie);
 603         hapd->wps_beacon_ie = NULL;
 604
 605         wpabuf_free(hapd->wps_probe_resp_ie);
 606         hapd->wps_probe_resp_ie = NULL;
 607
 608         hostapd_set_ap_wps_ie(hapd);
 609 }
 610
 611
 612 static int get_uuid_cb(struct hostapd_iface *iface, void *ctx)
 613 {
 614         const u8 **uuid = ctx;
 615         size_t j;
 616
 617         if (iface == NULL)
 618                 return 0;
 619         for (j = 0; j < iface->num_bss; j++) {
 620                 struct hostapd_data *hapd = iface->bss[j];
 621                 if (hapd->wps && !is_nil_uuid(hapd->wps->uuid)) {
 622                         *uuid = hapd->wps->uuid;
 623                         return 1;
 624                 }
 625         }
 626
 627         return 0;
 628 }
 629
 630
 631 static const u8 * get_own_uuid(struct hostapd_iface *iface)
 632 {
 633         const u8 *uuid;
 634         if (iface->for_each_interface == NULL)
 635                 return NULL;
 636         uuid = NULL;
 637         iface->for_each_interface(iface->interfaces, get_uuid_cb, &uuid);
 638         return uuid;
 639 }
 640
 641
 642 static int count_interface_cb(struct hostapd_iface *iface, void *ctx)
 643 {
 644         int *count= ctx;
 645         (*count)++;
 646         return 0;
 647 }
 648
 649
 650 static int interface_count(struct hostapd_iface *iface)
 651 {
 652         int count = 0;
 653         if (iface->for_each_interface == NULL)
 654                 return 0;
 655         iface->for_each_interface(iface->interfaces, count_interface_cb,
 656                                   &count);
 657         return count;
 658 }
 659
 660
 661 static int hostapd_wps_set_vendor_ext(struct hostapd_data *hapd,
 662                                       struct wps_context *wps)
 663 {
 664         int i;
 665
 666         for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++) {
 667                 wpabuf_free(wps->dev.vendor_ext[i]);
 668                 wps->dev.vendor_ext[i] = NULL;
 669
 670                 if (hapd->conf->wps_vendor_ext[i] == NULL)
 671                         continue;
 672
 673                 wps->dev.vendor_ext[i] =
 674                         wpabuf_dup(hapd->conf->wps_vendor_ext[i]);
 675                 if (wps->dev.vendor_ext[i] == NULL) {
 676                         while (--i >= 0)
 677                                 wpabuf_free(wps->dev.vendor_ext[i]);
 678                         return -1;
 679                 }
 680         }
 681
 682         return 0;
 683 }
 684
 685
 686 int hostapd_init_wps(struct hostapd_data *hapd,
 687                      struct hostapd_bss_config *conf)
 688 {
 689         struct wps_context *wps;
 690         struct wps_registrar_config cfg;
 691
 692         if (conf->wps_state == 0) {
 693                 hostapd_wps_clear_ies(hapd);
 694                 return 0;
 695         }
 696
 697         wps = os_zalloc(sizeof(*wps));
 698         if (wps == NULL)
 699                 return -1;
 700
 701         wps->cred_cb = hostapd_wps_cred_cb;
 702         wps->event_cb = hostapd_wps_event_cb;
 703         wps->cb_ctx = hapd;
 704
 705         os_memset(&cfg, 0, sizeof(cfg));
 706         wps->wps_state = hapd->conf->wps_state;
 707         wps->ap_setup_locked = hapd->conf->ap_setup_locked;
 708         if (is_nil_uuid(hapd->conf->uuid)) {
 709                 const u8 *uuid;
 710                 uuid = get_own_uuid(hapd->iface);
 711                 if (uuid) {
 712                         os_memcpy(wps->uuid, uuid, UUID_LEN);
 713                         wpa_hexdump(MSG_DEBUG, "WPS: Clone UUID from another "
 714                                     "interface", wps->uuid, UUID_LEN);
 715                 } else {
 716                         uuid_gen_mac_addr(hapd->own_addr, wps->uuid);
 717                         wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
 718                                     "address", wps->uuid, UUID_LEN);
 719                 }
 720         } else {
 721                 os_memcpy(wps->uuid, hapd->conf->uuid, UUID_LEN);
 722                 wpa_hexdump(MSG_DEBUG, "WPS: Use configured UUID",
 723                             wps->uuid, UUID_LEN);
 724         }
 725         wps->ssid_len = hapd->conf->ssid.ssid_len;
 726         os_memcpy(wps->ssid, hapd->conf->ssid.ssid, wps->ssid_len);
 727         wps->ap = 1;
 728         os_memcpy(wps->dev.mac_addr, hapd->own_addr, ETH_ALEN);
 729         wps->dev.device_name = hapd->conf->device_name ?
 730                 os_strdup(hapd->conf->device_name) : NULL;
 731         wps->dev.manufacturer = hapd->conf->manufacturer ?
 732                 os_strdup(hapd->conf->manufacturer) : NULL;
 733         wps->dev.model_name = hapd->conf->model_name ?
 734                 os_strdup(hapd->conf->model_name) : NULL;
 735         wps->dev.model_number = hapd->conf->model_number ?
 736                 os_strdup(hapd->conf->model_number) : NULL;
 737         wps->dev.serial_number = hapd->conf->serial_number ?
 738                 os_strdup(hapd->conf->serial_number) : NULL;
 739         wps->config_methods =
 740                 wps_config_methods_str2bin(hapd->conf->config_methods);
 741 #ifdef CONFIG_WPS2
 742         if ((wps->config_methods &
 743              (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
 744               WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
 745                 wpa_printf(MSG_INFO, "WPS: Converting display to "
 746                            "virtual_display for WPS 2.0 compliance");
 747                 wps->config_methods |= WPS_CONFIG_VIRT_DISPLAY;
 748         }
 749         if ((wps->config_methods &
 750              (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
 751               WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
 752                 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
 753                            "virtual_push_button for WPS 2.0 compliance");
 754                 wps->config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
 755         }
 756 #endif /* CONFIG_WPS2 */
 757         os_memcpy(wps->dev.pri_dev_type, hapd->conf->device_type,
 758                   WPS_DEV_TYPE_LEN);
 759
 760         if (hostapd_wps_set_vendor_ext(hapd, wps) < 0) {
 761                 os_free(wps);
 762                 return -1;
 763         }
 764
 765         wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version);
 766         wps->dev.rf_bands = hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
 767                 WPS_RF_50GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
 768
 769         if (conf->wpa & WPA_PROTO_RSN) {
 770                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
 771                         wps->auth_types |= WPS_AUTH_WPA2PSK;
 772                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
 773                         wps->auth_types |= WPS_AUTH_WPA2;
 774
 775                 if (conf->rsn_pairwise & WPA_CIPHER_CCMP)
 776                         wps->encr_types |= WPS_ENCR_AES;
 777                 if (conf->rsn_pairwise & WPA_CIPHER_TKIP)
 778                         wps->encr_types |= WPS_ENCR_TKIP;
 779         }
 780
 781         if (conf->wpa & WPA_PROTO_WPA) {
 782                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
 783                         wps->auth_types |= WPS_AUTH_WPAPSK;
 784                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
 785                         wps->auth_types |= WPS_AUTH_WPA;
 786
 787                 if (conf->wpa_pairwise & WPA_CIPHER_CCMP)
 788                         wps->encr_types |= WPS_ENCR_AES;
 789                 if (conf->wpa_pairwise & WPA_CIPHER_TKIP)
 790                         wps->encr_types |= WPS_ENCR_TKIP;
 791         }
 792
 793         if (conf->ssid.security_policy == SECURITY_PLAINTEXT) {
 794                 wps->encr_types |= WPS_ENCR_NONE;
 795                 wps->auth_types |= WPS_AUTH_OPEN;
 796         } else if (conf->ssid.security_policy == SECURITY_STATIC_WEP) {
 797                 wps->encr_types |= WPS_ENCR_WEP;
 798                 if (conf->auth_algs & WPA_AUTH_ALG_OPEN)
 799                         wps->auth_types |= WPS_AUTH_OPEN;
 800                 if (conf->auth_algs & WPA_AUTH_ALG_SHARED)
 801                         wps->auth_types |= WPS_AUTH_SHARED;
 802         } else if (conf->ssid.security_policy == SECURITY_IEEE_802_1X) {
 803                 wps->auth_types |= WPS_AUTH_OPEN;
 804                 if (conf->default_wep_key_len)
 805                         wps->encr_types |= WPS_ENCR_WEP;
 806                 else
 807                         wps->encr_types |= WPS_ENCR_NONE;
 808         }
 809
 810         if (conf->ssid.wpa_psk_file) {
 811                 /* Use per-device PSKs */
 812         } else if (conf->ssid.wpa_passphrase) {
 813                 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase);
 814                 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase);
 815         } else if (conf->ssid.wpa_psk) {
 816                 wps->network_key = os_malloc(2 * PMK_LEN + 1);
 817                 if (wps->network_key == NULL) {
 818                         os_free(wps);
 819                         return -1;
 820                 }
 821                 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1,
 822                                  conf->ssid.wpa_psk->psk, PMK_LEN);
 823                 wps->network_key_len = 2 * PMK_LEN;
 824         } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) {
 825                 wps->network_key = os_malloc(conf->ssid.wep.len[0]);
 826                 if (wps->network_key == NULL) {
 827                         os_free(wps);
 828                         return -1;
 829                 }
 830                 os_memcpy(wps->network_key, conf->ssid.wep.key[0],
 831                           conf->ssid.wep.len[0]);
 832                 wps->network_key_len = conf->ssid.wep.len[0];
 833         }
 834
 835         if (conf->ssid.wpa_psk) {
 836                 os_memcpy(wps->psk, conf->ssid.wpa_psk->psk, PMK_LEN);
 837                 wps->psk_set = 1;
 838         }
 839
 840         if (conf->wps_state == WPS_STATE_NOT_CONFIGURED) {
 841                 /* Override parameters to enable security by default */
 842                 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
 843                 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
 844         }
 845
 846         wps->ap_settings = conf->ap_settings;
 847         wps->ap_settings_len = conf->ap_settings_len;
 848
 849         cfg.new_psk_cb = hostapd_wps_new_psk_cb;
 850         cfg.set_ie_cb = hostapd_wps_set_ie_cb;
 851         cfg.pin_needed_cb = hostapd_wps_pin_needed_cb;
 852         cfg.reg_success_cb = hostapd_wps_reg_success_cb;
 853         cfg.enrollee_seen_cb = hostapd_wps_enrollee_seen_cb;
 854         cfg.cb_ctx = hapd;
 855         cfg.skip_cred_build = conf->skip_cred_build;
 856         cfg.extra_cred = conf->extra_cred;
 857         cfg.extra_cred_len = conf->extra_cred_len;
 858         cfg.disable_auto_conf = (hapd->conf->wps_cred_processing == 1) &&
 859                 conf->skip_cred_build;
 860         if (conf->ssid.security_policy == SECURITY_STATIC_WEP)
 861                 cfg.static_wep_only = 1;
 862         cfg.dualband = interface_count(hapd->iface) > 1;
 863         if (cfg.dualband)
 864                 wpa_printf(MSG_DEBUG, "WPS: Dualband AP");
 865
 866         wps->registrar = wps_registrar_init(wps, &cfg);
 867         if (wps->registrar == NULL) {
 868                 wpa_printf(MSG_ERROR, "Failed to initialize WPS Registrar");
 869                 os_free(wps->network_key);
 870                 os_free(wps);
 871                 return -1;
 872         }
 873
 874 #ifdef CONFIG_WPS_UPNP
 875         wps->friendly_name = hapd->conf->friendly_name;
 876         wps->manufacturer_url = hapd->conf->manufacturer_url;
 877         wps->model_description = hapd->conf->model_description;
 878         wps->model_url = hapd->conf->model_url;
 879         wps->upc = hapd->conf->upc;
 880 #endif /* CONFIG_WPS_UPNP */
 881
 882         hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd);
 883
 884         hapd->wps = wps;
 885
 886         return 0;
 887 }
 888
 889
 890 int hostapd_init_wps_complete(struct hostapd_data *hapd)
 891 {
 892         struct wps_context *wps = hapd->wps;
 893
 894         if (wps == NULL)
 895                 return 0;
 896
 897 #ifdef CONFIG_WPS_UPNP
 898         if (hostapd_wps_upnp_init(hapd, wps) < 0) {
 899                 wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP");
 900                 wps_registrar_deinit(wps->registrar);
 901                 os_free(wps->network_key);
 902                 os_free(wps);
 903                 hapd->wps = NULL;
 904                 return -1;
 905         }
 906 #endif /* CONFIG_WPS_UPNP */
 907
 908         return 0;
 909 }
 910
 911
 912 void hostapd_deinit_wps(struct hostapd_data *hapd)
 913 {
 914         eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
 915         eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
 916         if (hapd->wps == NULL)
 917                 return;
 918 #ifdef CONFIG_WPS_UPNP
 919         hostapd_wps_upnp_deinit(hapd);
 920 #endif /* CONFIG_WPS_UPNP */
 921         wps_registrar_deinit(hapd->wps->registrar);
 922         os_free(hapd->wps->network_key);
 923         wps_device_data_free(&hapd->wps->dev);
 924         wpabuf_free(hapd->wps->dh_pubkey);
 925         wpabuf_free(hapd->wps->dh_privkey);
 926         wpabuf_free(hapd->wps->oob_conf.pubkey_hash);
 927         wpabuf_free(hapd->wps->oob_conf.dev_password);
 928         wps_free_pending_msgs(hapd->wps->upnp_msgs);
 929         os_free(hapd->wps);
 930         hapd->wps = NULL;
 931         hostapd_wps_clear_ies(hapd);
 932 }
 933
 934
 935 void hostapd_update_wps(struct hostapd_data *hapd)
 936 {
 937         if (hapd->wps == NULL)
 938                 return;
 939
 940 #ifdef CONFIG_WPS_UPNP
 941         hapd->wps->friendly_name = hapd->conf->friendly_name;
 942         hapd->wps->manufacturer_url = hapd->conf->manufacturer_url;
 943         hapd->wps->model_description = hapd->conf->model_description;
 944         hapd->wps->model_url = hapd->conf->model_url;
 945         hapd->wps->upc = hapd->conf->upc;
 946 #endif /* CONFIG_WPS_UPNP */
 947
 948         hostapd_wps_set_vendor_ext(hapd, hapd->wps);
 949
 950         if (hapd->conf->wps_state)
 951                 wps_registrar_update_ie(hapd->wps->registrar);
 952         else
 953                 hostapd_deinit_wps(hapd);
 954 }
 955
 956
 957 struct wps_add_pin_data {
 958         const u8 *addr;
 959         const u8 *uuid;
 960         const u8 *pin;
 961         size_t pin_len;
 962         int timeout;
 963         int added;
 964 };
 965
 966
 967 static int wps_add_pin(struct hostapd_data *hapd, void *ctx)
 968 {
 969         struct wps_add_pin_data *data = ctx;
 970         int ret;
 971
 972         if (hapd->wps == NULL)
 973                 return 0;
 974         ret = wps_registrar_add_pin(hapd->wps->registrar, data->addr,
 975                                     data->uuid, data->pin, data->pin_len,
 976                                     data->timeout);
 977         if (ret == 0)
 978                 data->added++;
 979         return ret;
 980 }
 981
 982
 983 int hostapd_wps_add_pin(struct hostapd_data *hapd, const u8 *addr,
 984                         const char *uuid, const char *pin, int timeout)
 985 {
 986         u8 u[UUID_LEN];
 987         struct wps_add_pin_data data;
 988
 989         data.addr = addr;
 990         data.uuid = u;
 991         data.pin = (const u8 *) pin;
 992         data.pin_len = os_strlen(pin);
 993         data.timeout = timeout;
 994         data.added = 0;
 995
 996         if (os_strcmp(uuid, "any") == 0)
 997                 data.uuid = NULL;
 998         else {
 999                 if (uuid_str2bin(uuid, u))
1000                         return -1;
1001                 data.uuid = u;
1002         }
1003         if (hostapd_wps_for_each(hapd, wps_add_pin, &data) < 0)
1004                 return -1;
1005         return data.added ? 0 : -1;
1006 }
1007
1008
1009 static int wps_button_pushed(struct hostapd_data *hapd, void *ctx)
1010 {
1011         const u8 *p2p_dev_addr = ctx;
1012         if (hapd->wps == NULL)
1013                 return 0;
1014         return wps_registrar_button_pushed(hapd->wps->registrar, p2p_dev_addr);
1015 }
1016
1017
1018 int hostapd_wps_button_pushed(struct hostapd_data *hapd,
1019                               const u8 *p2p_dev_addr)
1020 {
1021         return hostapd_wps_for_each(hapd, wps_button_pushed,
1022                                     (void *) p2p_dev_addr);
1023 }
1024
1025
1026 #ifdef CONFIG_WPS_OOB
1027 int hostapd_wps_start_oob(struct hostapd_data *hapd, char *device_type,
1028                           char *path, char *method, char *name)
1029 {
1030         struct wps_context *wps = hapd->wps;
1031         struct oob_device_data *oob_dev;
1032
1033         oob_dev = wps_get_oob_device(device_type);
1034         if (oob_dev == NULL)
1035                 return -1;
1036         oob_dev->device_path = path;
1037         oob_dev->device_name = name;
1038         wps->oob_conf.oob_method = wps_get_oob_method(method);
1039
1040         if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) {
1041                 /*
1042                  * Use pre-configured DH keys in order to be able to write the
1043                  * key hash into the OOB file.
1044                  */
1045                 wpabuf_free(wps->dh_pubkey);
1046                 wpabuf_free(wps->dh_privkey);
1047                 wps->dh_privkey = NULL;
1048                 wps->dh_pubkey = dh_init(dh_groups_get(WPS_DH_GROUP),
1049                                          &wps->dh_privkey);
1050                 wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
1051                 if (wps->dh_pubkey == NULL) {
1052                         wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
1053                                    "Diffie-Hellman handshake");
1054                         return -1;
1055                 }
1056         }
1057
1058         if (wps_process_oob(wps, oob_dev, 1) < 0)
1059                 goto error;
1060
1061         if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
1062              wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
1063             hostapd_wps_add_pin(hapd, NULL, "any",
1064                                 wpabuf_head(wps->oob_conf.dev_password), 0) <
1065             0)
1066                 goto error;
1067
1068         return 0;
1069
1070 error:
1071         wpabuf_free(wps->dh_pubkey);
1072         wps->dh_pubkey = NULL;
1073         wpabuf_free(wps->dh_privkey);
1074         wps->dh_privkey = NULL;
1075         return -1;
1076 }
1077 #endif /* CONFIG_WPS_OOB */
1078
1079
1080 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, const u8 *da,
1081                                     const u8 *bssid,
1082                                     const u8 *ie, size_t ie_len)
1083 {
1084         struct hostapd_data *hapd = ctx;
1085         struct wpabuf *wps_ie;
1086         struct ieee802_11_elems elems;
1087
1088         if (hapd->wps == NULL)
1089                 return 0;
1090
1091         if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) {
1092                 wpa_printf(MSG_DEBUG, "WPS: Could not parse ProbeReq from "
1093                            MACSTR, MAC2STR(addr));
1094                 return 0;
1095         }
1096
1097         if (elems.ssid && elems.ssid_len > 0 &&
1098             (elems.ssid_len != hapd->conf->ssid.ssid_len ||
1099              os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) !=
1100              0))
1101                 return 0; /* Not for us */
1102
1103         wps_ie = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
1104         if (wps_ie == NULL)
1105                 return 0;
1106         if (wps_validate_probe_req(wps_ie, addr) < 0) {
1107                 wpabuf_free(wps_ie);
1108                 return 0;
1109         }
1110
1111         if (wpabuf_len(wps_ie) > 0) {
1112                 int p2p_wildcard = 0;
1113 #ifdef CONFIG_P2P
1114                 if (elems.ssid && elems.ssid_len == P2P_WILDCARD_SSID_LEN &&
1115                     os_memcmp(elems.ssid, P2P_WILDCARD_SSID,
1116                               P2P_WILDCARD_SSID_LEN) == 0)
1117                         p2p_wildcard = 1;
1118 #endif /* CONFIG_P2P */
1119                 wps_registrar_probe_req_rx(hapd->wps->registrar, addr, wps_ie,
1120                                            p2p_wildcard);
1121 #ifdef CONFIG_WPS_UPNP
1122                 /* FIX: what exactly should be included in the WLANEvent?
1123                  * WPS attributes? Full ProbeReq frame? */
1124                 if (!p2p_wildcard)
1125                         upnp_wps_device_send_wlan_event(
1126                                 hapd->wps_upnp, addr,
1127                                 UPNP_WPS_WLANEVENT_TYPE_PROBE, wps_ie);
1128 #endif /* CONFIG_WPS_UPNP */
1129         }
1130
1131         wpabuf_free(wps_ie);
1132
1133         return 0;
1134 }
1135
1136
1137 #ifdef CONFIG_WPS_UPNP
1138
1139 static int hostapd_rx_req_put_wlan_response(
1140         void *priv, enum upnp_wps_wlanevent_type ev_type,
1141         const u8 *mac_addr, const struct wpabuf *msg,
1142         enum wps_msg_type msg_type)
1143 {
1144         struct hostapd_data *hapd = priv;
1145         struct sta_info *sta;
1146         struct upnp_pending_message *p;
1147
1148         wpa_printf(MSG_DEBUG, "WPS UPnP: PutWLANResponse ev_type=%d mac_addr="
1149                    MACSTR, ev_type, MAC2STR(mac_addr));
1150         wpa_hexdump(MSG_MSGDUMP, "WPS UPnP: PutWLANResponse NewMessage",
1151                     wpabuf_head(msg), wpabuf_len(msg));
1152         if (ev_type != UPNP_WPS_WLANEVENT_TYPE_EAP) {
1153                 wpa_printf(MSG_DEBUG, "WPS UPnP: Ignored unexpected "
1154                            "PutWLANResponse WLANEventType %d", ev_type);
1155                 return -1;
1156         }
1157
1158         /*
1159          * EAP response to ongoing to WPS Registration. Send it to EAP-WSC
1160          * server implementation for delivery to the peer.
1161          */
1162
1163         sta = ap_get_sta(hapd, mac_addr);
1164 #ifndef CONFIG_WPS_STRICT
1165         if (!sta) {
1166                 /*
1167                  * Workaround - Intel wsccmd uses bogus NewWLANEventMAC:
1168                  * Pick STA that is in an ongoing WPS registration without
1169                  * checking the MAC address.
1170                  */
1171                 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found based "
1172                            "on NewWLANEventMAC; try wildcard match");
1173                 for (sta = hapd->sta_list; sta; sta = sta->next) {
1174                         if (sta->eapol_sm && (sta->flags & WLAN_STA_WPS))
1175                                 break;
1176                 }
1177         }
1178 #endif /* CONFIG_WPS_STRICT */
1179
1180         if (!sta) {
1181                 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found");
1182                 return 0;
1183         }
1184
1185         p = os_zalloc(sizeof(*p));
1186         if (p == NULL)
1187                 return -1;
1188         os_memcpy(p->addr, sta->addr, ETH_ALEN);
1189         p->msg = wpabuf_dup(msg);
1190         p->type = msg_type;
1191         p->next = hapd->wps->upnp_msgs;
1192         hapd->wps->upnp_msgs = p;
1193
1194         return eapol_auth_eap_pending_cb(sta->eapol_sm, sta->eapol_sm->eap);
1195 }
1196
1197
1198 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
1199                                  struct wps_context *wps)
1200 {
1201         struct upnp_wps_device_ctx *ctx;
1202
1203         if (!hapd->conf->upnp_iface)
1204                 return 0;
1205         ctx = os_zalloc(sizeof(*ctx));
1206         if (ctx == NULL)
1207                 return -1;
1208
1209         ctx->rx_req_put_wlan_response = hostapd_rx_req_put_wlan_response;
1210         if (hapd->conf->ap_pin)
1211                 ctx->ap_pin = os_strdup(hapd->conf->ap_pin);
1212
1213         hapd->wps_upnp = upnp_wps_device_init(ctx, wps, hapd,
1214                                               hapd->conf->upnp_iface);
1215         if (hapd->wps_upnp == NULL)
1216                 return -1;
1217         wps->wps_upnp = hapd->wps_upnp;
1218
1219         return 0;
1220 }
1221
1222
1223 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd)
1224 {
1225         upnp_wps_device_deinit(hapd->wps_upnp, hapd);
1226 }
1227
1228 #endif /* CONFIG_WPS_UPNP */
1229
1230
1231 int hostapd_wps_get_mib_sta(struct hostapd_data *hapd, const u8 *addr,
1232                             char *buf, size_t buflen)
1233 {
1234         if (hapd->wps == NULL)
1235                 return 0;
1236         return wps_registrar_get_info(hapd->wps->registrar, addr, buf, buflen);
1237 }
1238
1239
1240 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
1241 {
1242         struct hostapd_data *hapd = eloop_data;
1243         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
1244         hostapd_wps_ap_pin_disable(hapd);
1245 }
1246
1247
1248 static void hostapd_wps_ap_pin_enable(struct hostapd_data *hapd, int timeout)
1249 {
1250         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
1251         hapd->ap_pin_failures = 0;
1252         hapd->conf->ap_setup_locked = 0;
1253         if (hapd->wps->ap_setup_locked) {
1254                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
1255                 hapd->wps->ap_setup_locked = 0;
1256                 wps_registrar_update_ie(hapd->wps->registrar);
1257         }
1258         eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1259         if (timeout > 0)
1260                 eloop_register_timeout(timeout, 0,
1261                                        hostapd_wps_ap_pin_timeout, hapd, NULL);
1262 }
1263
1264
1265 static int wps_ap_pin_disable(struct hostapd_data *hapd, void *ctx)
1266 {
1267         os_free(hapd->conf->ap_pin);
1268         hapd->conf->ap_pin = NULL;
1269 #ifdef CONFIG_WPS_UPNP
1270         upnp_wps_set_ap_pin(hapd->wps_upnp, NULL);
1271 #endif /* CONFIG_WPS_UPNP */
1272         eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1273         return 0;
1274 }
1275
1276
1277 void hostapd_wps_ap_pin_disable(struct hostapd_data *hapd)
1278 {
1279         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
1280         hostapd_wps_for_each(hapd, wps_ap_pin_disable, NULL);
1281 }
1282
1283
1284 struct wps_ap_pin_data {
1285         char pin_txt[9];
1286         int timeout;
1287 };
1288
1289
1290 static int wps_ap_pin_set(struct hostapd_data *hapd, void *ctx)
1291 {
1292         struct wps_ap_pin_data *data = ctx;
1293         os_free(hapd->conf->ap_pin);
1294         hapd->conf->ap_pin = os_strdup(data->pin_txt);
1295 #ifdef CONFIG_WPS_UPNP
1296         upnp_wps_set_ap_pin(hapd->wps_upnp, data->pin_txt);
1297 #endif /* CONFIG_WPS_UPNP */
1298         hostapd_wps_ap_pin_enable(hapd, data->timeout);
1299         return 0;
1300 }
1301
1302
1303 const char * hostapd_wps_ap_pin_random(struct hostapd_data *hapd, int timeout)
1304 {
1305         unsigned int pin;
1306         struct wps_ap_pin_data data;
1307
1308         pin = wps_generate_pin();
1309         os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%u", pin);
1310         data.timeout = timeout;
1311         hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
1312         return hapd->conf->ap_pin;
1313 }
1314
1315
1316 const char * hostapd_wps_ap_pin_get(struct hostapd_data *hapd)
1317 {
1318         return hapd->conf->ap_pin;
1319 }
1320
1321
1322 int hostapd_wps_ap_pin_set(struct hostapd_data *hapd, const char *pin,
1323                            int timeout)
1324 {
1325         struct wps_ap_pin_data data;
1326         int ret;
1327
1328         ret = os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%s", pin);
1329         if (ret < 0 || ret >= (int) sizeof(data.pin_txt))
1330                 return -1;
1331         data.timeout = timeout;
1332         return hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
1333 }
1334
1335
1336 static int wps_update_ie(struct hostapd_data *hapd, void *ctx)
1337 {
1338         if (hapd->wps)
1339                 wps_registrar_update_ie(hapd->wps->registrar);
1340         return 0;
1341 }
1342
1343
1344 void hostapd_wps_update_ie(struct hostapd_data *hapd)
1345 {
1346         hostapd_wps_for_each(hapd, wps_update_ie, NULL);
1347 }
1348
1349
1350 int hostapd_wps_config_ap(struct hostapd_data *hapd, const char *ssid,
1351                           const char *auth, const char *encr, const char *key)
1352 {
1353         struct wps_credential cred;
1354         size_t len;
1355
1356         os_memset(&cred, 0, sizeof(cred));
1357
1358         len = os_strlen(ssid);
1359         if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
1360             hexstr2bin(ssid, cred.ssid, len / 2))
1361                 return -1;
1362         cred.ssid_len = len / 2;
1363
1364         if (os_strncmp(auth, "OPEN", 4) == 0)
1365                 cred.auth_type = WPS_AUTH_OPEN;
1366         else if (os_strncmp(auth, "WPAPSK", 6) == 0)
1367                 cred.auth_type = WPS_AUTH_WPAPSK;
1368         else if (os_strncmp(auth, "WPA2PSK", 7) == 0)
1369                 cred.auth_type = WPS_AUTH_WPA2PSK;
1370         else
1371                 return -1;
1372
1373         if (encr) {
1374                 if (os_strncmp(encr, "NONE", 4) == 0)
1375                         cred.encr_type = WPS_ENCR_NONE;
1376                 else if (os_strncmp(encr, "WEP", 3) == 0)
1377                         cred.encr_type = WPS_ENCR_WEP;
1378                 else if (os_strncmp(encr, "TKIP", 4) == 0)
1379                         cred.encr_type = WPS_ENCR_TKIP;
1380                 else if (os_strncmp(encr, "CCMP", 4) == 0)
1381                         cred.encr_type = WPS_ENCR_AES;
1382                 else
1383                         return -1;
1384         } else
1385                 cred.encr_type = WPS_ENCR_NONE;
1386
1387         if (key) {
1388                 len = os_strlen(key);
1389                 if ((len & 1) || len > 2 * sizeof(cred.key) ||
1390                     hexstr2bin(key, cred.key, len / 2))
1391                         return -1;
1392                 cred.key_len = len / 2;
1393         }
1394
1395         return wps_registrar_config_ap(hapd->wps->registrar, &cred);
1396 }