hostapd/wps_hostapd.c

   1 /*
   2  * hostapd / WPS integration
   3  * Copyright (c) 2008, 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 "includes.h"
  16
  17 #include "common.h"
  18 #include "eloop.h"
  19 #include "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 "driver_i.h"
  31 #include "sta_flags.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 void hostapd_wps_probe_req_rx(void *ctx, const u8 *addr,
  44                                      const u8 *ie, size_t ie_len);
  45
  46
  47 static int hostapd_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
  48                                   size_t psk_len)
  49 {
  50         struct hostapd_data *hapd = ctx;
  51         struct hostapd_wpa_psk *p;
  52         struct hostapd_ssid *ssid = &hapd->conf->ssid;
  53
  54         wpa_printf(MSG_DEBUG, "Received new WPA/WPA2-PSK from WPS for STA "
  55                    MACSTR, MAC2STR(mac_addr));
  56         wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
  57
  58         if (psk_len != PMK_LEN) {
  59                 wpa_printf(MSG_DEBUG, "Unexpected PSK length %lu",
  60                            (unsigned long) psk_len);
  61                 return -1;
  62         }
  63
  64         /* Add the new PSK to runtime PSK list */
  65         p = os_zalloc(sizeof(*p));
  66         if (p == NULL)
  67                 return -1;
  68         os_memcpy(p->addr, mac_addr, ETH_ALEN);
  69         os_memcpy(p->psk, psk, PMK_LEN);
  70
  71         p->next = ssid->wpa_psk;
  72         ssid->wpa_psk = p;
  73
  74         if (ssid->wpa_psk_file) {
  75                 FILE *f;
  76                 char hex[PMK_LEN * 2 + 1];
  77                 /* Add the new PSK to PSK list file */
  78                 f = fopen(ssid->wpa_psk_file, "a");
  79                 if (f == NULL) {
  80                         wpa_printf(MSG_DEBUG, "Failed to add the PSK to "
  81                                    "'%s'", ssid->wpa_psk_file);
  82                         return -1;
  83                 }
  84
  85                 wpa_snprintf_hex(hex, sizeof(hex), psk, psk_len);
  86                 fprintf(f, MACSTR " %s\n", MAC2STR(mac_addr), hex);
  87                 fclose(f);
  88         }
  89
  90         return 0;
  91 }
  92
  93
  94 static int hostapd_wps_set_ie_cb(void *ctx, const u8 *beacon_ie,
  95                                  size_t beacon_ie_len, const u8 *probe_resp_ie,
  96                                  size_t probe_resp_ie_len)
  97 {
  98         struct hostapd_data *hapd = ctx;
  99
 100         os_free(hapd->wps_beacon_ie);
 101         if (beacon_ie_len == 0) {
 102                 hapd->wps_beacon_ie = NULL;
 103                 hapd->wps_beacon_ie_len = 0;
 104         } else {
 105                 hapd->wps_beacon_ie = os_malloc(beacon_ie_len);
 106                 if (hapd->wps_beacon_ie == NULL) {
 107                         hapd->wps_beacon_ie_len = 0;
 108                         return -1;
 109                 }
 110                 os_memcpy(hapd->wps_beacon_ie, beacon_ie, beacon_ie_len);
 111                 hapd->wps_beacon_ie_len = beacon_ie_len;
 112         }
 113         hostapd_set_wps_beacon_ie(hapd, hapd->wps_beacon_ie,
 114                                   hapd->wps_beacon_ie_len);
 115
 116         os_free(hapd->wps_probe_resp_ie);
 117         if (probe_resp_ie_len == 0) {
 118                 hapd->wps_probe_resp_ie = NULL;
 119                 hapd->wps_probe_resp_ie_len = 0;
 120         } else {
 121                 hapd->wps_probe_resp_ie = os_malloc(probe_resp_ie_len);
 122                 if (hapd->wps_probe_resp_ie == NULL) {
 123                         hapd->wps_probe_resp_ie_len = 0;
 124                         return -1;
 125                 }
 126                 os_memcpy(hapd->wps_probe_resp_ie, probe_resp_ie,
 127                           probe_resp_ie_len);
 128                 hapd->wps_probe_resp_ie_len = probe_resp_ie_len;
 129         }
 130         hostapd_set_wps_probe_resp_ie(hapd, hapd->wps_probe_resp_ie,
 131                                       hapd->wps_probe_resp_ie_len);
 132
 133         return 0;
 134 }
 135
 136
 137 static void hostapd_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
 138                                       const struct wps_device_data *dev)
 139 {
 140         struct hostapd_data *hapd = ctx;
 141         char uuid[40], txt[400];
 142         int len;
 143         char devtype[WPS_DEV_TYPE_BUFSIZE];
 144         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 145                 return;
 146         wpa_printf(MSG_DEBUG, "WPS: PIN needed for E-UUID %s", uuid);
 147         len = os_snprintf(txt, sizeof(txt), WPS_EVENT_PIN_NEEDED
 148                           "%s " MACSTR " [%s|%s|%s|%s|%s|%s]",
 149                           uuid, MAC2STR(dev->mac_addr), dev->device_name,
 150                           dev->manufacturer, dev->model_name,
 151                           dev->model_number, dev->serial_number,
 152                           wps_dev_type_bin2str(dev->pri_dev_type, devtype,
 153                                                sizeof(devtype)));
 154         if (len > 0 && len < (int) sizeof(txt))
 155                 wpa_msg(hapd->msg_ctx, MSG_INFO, "%s", txt);
 156
 157         if (hapd->conf->wps_pin_requests) {
 158                 FILE *f;
 159                 struct os_time t;
 160                 f = fopen(hapd->conf->wps_pin_requests, "a");
 161                 if (f == NULL)
 162                         return;
 163                 os_get_time(&t);
 164                 fprintf(f, "%ld\t%s\t" MACSTR "\t%s\t%s\t%s\t%s\t%s"
 165                         "\t%s\n",
 166                         t.sec, uuid, MAC2STR(dev->mac_addr), dev->device_name,
 167                         dev->manufacturer, dev->model_name, dev->model_number,
 168                         dev->serial_number,
 169                         wps_dev_type_bin2str(dev->pri_dev_type, devtype,
 170                                              sizeof(devtype)));
 171                 fclose(f);
 172         }
 173 }
 174
 175
 176 static void hostapd_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 177                                        const u8 *uuid_e)
 178 {
 179         struct hostapd_data *hapd = ctx;
 180         char uuid[40];
 181         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 182                 return;
 183         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_REG_SUCCESS MACSTR " %s",
 184                 MAC2STR(mac_addr), uuid);
 185 }
 186
 187
 188 static int str_starts(const char *str, const char *start)
 189 {
 190         return os_strncmp(str, start, os_strlen(start)) == 0;
 191 }
 192
 193
 194 static void wps_reload_config(void *eloop_data, void *user_ctx)
 195 {
 196         struct hostapd_iface *iface = eloop_data;
 197
 198         wpa_printf(MSG_DEBUG, "WPS: Reload configuration data");
 199         if (hostapd_reload_config(iface) < 0) {
 200                 wpa_printf(MSG_WARNING, "WPS: Failed to reload the updated "
 201                            "configuration");
 202         }
 203 }
 204
 205
 206 static int hostapd_wps_cred_cb(void *ctx, const struct wps_credential *cred)
 207 {
 208         struct hostapd_data *hapd = ctx;
 209         FILE *oconf, *nconf;
 210         size_t len, i;
 211         char *tmp_fname;
 212         char buf[1024];
 213         int multi_bss;
 214         int wpa;
 215
 216         wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
 217                         cred->cred_attr, cred->cred_attr_len);
 218
 219         wpa_printf(MSG_DEBUG, "WPS: Received new AP Settings");
 220         wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
 221         wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
 222                    cred->auth_type);
 223         wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
 224         wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
 225         wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
 226                         cred->key, cred->key_len);
 227         wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
 228                    MAC2STR(cred->mac_addr));
 229
 230         if ((hapd->conf->wps_cred_processing == 1 ||
 231              hapd->conf->wps_cred_processing == 2) && cred->cred_attr) {
 232                 size_t blen = cred->cred_attr_len * 2 + 1;
 233                 char *_buf = os_malloc(blen);
 234                 if (_buf) {
 235                         wpa_snprintf_hex(_buf, blen,
 236                                          cred->cred_attr, cred->cred_attr_len);
 237                         wpa_msg(hapd->msg_ctx, MSG_INFO, "%s%s",
 238                                 WPS_EVENT_NEW_AP_SETTINGS, _buf);
 239                         os_free(_buf);
 240                 }
 241         } else
 242                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS);
 243
 244         if (hapd->conf->wps_cred_processing == 1)
 245                 return 0;
 246
 247         os_memcpy(hapd->wps->ssid, cred->ssid, cred->ssid_len);
 248         hapd->wps->ssid_len = cred->ssid_len;
 249         hapd->wps->encr_types = cred->encr_type;
 250         hapd->wps->auth_types = cred->auth_type;
 251         if (cred->key_len == 0) {
 252                 os_free(hapd->wps->network_key);
 253                 hapd->wps->network_key = NULL;
 254                 hapd->wps->network_key_len = 0;
 255         } else {
 256                 if (hapd->wps->network_key == NULL ||
 257                     hapd->wps->network_key_len < cred->key_len) {
 258                         hapd->wps->network_key_len = 0;
 259                         os_free(hapd->wps->network_key);
 260                         hapd->wps->network_key = os_malloc(cred->key_len);
 261                         if (hapd->wps->network_key == NULL)
 262                                 return -1;
 263                 }
 264                 hapd->wps->network_key_len = cred->key_len;
 265                 os_memcpy(hapd->wps->network_key, cred->key, cred->key_len);
 266         }
 267         hapd->wps->wps_state = WPS_STATE_CONFIGURED;
 268
 269         len = os_strlen(hapd->iface->config_fname) + 5;
 270         tmp_fname = os_malloc(len);
 271         if (tmp_fname == NULL)
 272                 return -1;
 273         os_snprintf(tmp_fname, len, "%s-new", hapd->iface->config_fname);
 274
 275         oconf = fopen(hapd->iface->config_fname, "r");
 276         if (oconf == NULL) {
 277                 wpa_printf(MSG_WARNING, "WPS: Could not open current "
 278                            "configuration file");
 279                 os_free(tmp_fname);
 280                 return -1;
 281         }
 282
 283         nconf = fopen(tmp_fname, "w");
 284         if (nconf == NULL) {
 285                 wpa_printf(MSG_WARNING, "WPS: Could not write updated "
 286                            "configuration file");
 287                 os_free(tmp_fname);
 288                 fclose(oconf);
 289                 return -1;
 290         }
 291
 292         fprintf(nconf, "# WPS configuration - START\n");
 293
 294         fprintf(nconf, "wps_state=2\n");
 295
 296         fprintf(nconf, "ssid=");
 297         for (i = 0; i < cred->ssid_len; i++)
 298                 fputc(cred->ssid[i], nconf);
 299         fprintf(nconf, "\n");
 300
 301         if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
 302             (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
 303                 wpa = 3;
 304         else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
 305                 wpa = 2;
 306         else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
 307                 wpa = 1;
 308         else
 309                 wpa = 0;
 310
 311         if (wpa) {
 312                 char *prefix;
 313                 fprintf(nconf, "wpa=%d\n", wpa);
 314
 315                 fprintf(nconf, "wpa_key_mgmt=");
 316                 prefix = "";
 317                 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA)) {
 318                         fprintf(nconf, "WPA-EAP");
 319                         prefix = " ";
 320                 }
 321                 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK))
 322                         fprintf(nconf, "%sWPA-PSK", prefix);
 323                 fprintf(nconf, "\n");
 324
 325                 fprintf(nconf, "wpa_pairwise=");
 326                 prefix = "";
 327                 if (cred->encr_type & WPS_ENCR_AES) {
 328                         fprintf(nconf, "CCMP");
 329                         prefix = " ";
 330                 }
 331                 if (cred->encr_type & WPS_ENCR_TKIP) {
 332                         fprintf(nconf, "%sTKIP", prefix);
 333                 }
 334                 fprintf(nconf, "\n");
 335
 336                 if (cred->key_len >= 8 && cred->key_len < 64) {
 337                         fprintf(nconf, "wpa_passphrase=");
 338                         for (i = 0; i < cred->key_len; i++)
 339                                 fputc(cred->key[i], nconf);
 340                         fprintf(nconf, "\n");
 341                 } else if (cred->key_len == 64) {
 342                         fprintf(nconf, "wpa_psk=");
 343                         for (i = 0; i < cred->key_len; i++)
 344                                 fputc(cred->key[i], nconf);
 345                         fprintf(nconf, "\n");
 346                 } else {
 347                         wpa_printf(MSG_WARNING, "WPS: Invalid key length %lu "
 348                                    "for WPA/WPA2",
 349                                    (unsigned long) cred->key_len);
 350                 }
 351
 352                 fprintf(nconf, "auth_algs=1\n");
 353         } else {
 354                 if ((cred->auth_type & WPS_AUTH_OPEN) &&
 355                     (cred->auth_type & WPS_AUTH_SHARED))
 356                         fprintf(nconf, "auth_algs=3\n");
 357                 else if (cred->auth_type & WPS_AUTH_SHARED)
 358                         fprintf(nconf, "auth_algs=2\n");
 359                 else
 360                         fprintf(nconf, "auth_algs=1\n");
 361
 362                 if (cred->encr_type & WPS_ENCR_WEP && cred->key_idx <= 4) {
 363                         int key_idx = cred->key_idx;
 364                         if (key_idx)
 365                                 key_idx--;
 366                         fprintf(nconf, "wep_default_key=%d\n", key_idx);
 367                         fprintf(nconf, "wep_key%d=", key_idx);
 368                         if (cred->key_len == 10 || cred->key_len == 26) {
 369                                 /* WEP key as a hex string */
 370                                 for (i = 0; i < cred->key_len; i++)
 371                                         fputc(cred->key[i], nconf);
 372                         } else {
 373                                 /* Raw WEP key; convert to hex */
 374                                 for (i = 0; i < cred->key_len; i++)
 375                                         fprintf(nconf, "%02x", cred->key[i]);
 376                         }
 377                         fprintf(nconf, "\n");
 378                 }
 379         }
 380
 381         fprintf(nconf, "# WPS configuration - END\n");
 382
 383         multi_bss = 0;
 384         while (fgets(buf, sizeof(buf), oconf)) {
 385                 if (os_strncmp(buf, "bss=", 4) == 0)
 386                         multi_bss = 1;
 387                 if (!multi_bss &&
 388                     (str_starts(buf, "ssid=") ||
 389                      str_starts(buf, "auth_algs=") ||
 390                      str_starts(buf, "wps_state=") ||
 391                      str_starts(buf, "wpa=") ||
 392                      str_starts(buf, "wpa_psk=") ||
 393                      str_starts(buf, "wpa_pairwise=") ||
 394                      str_starts(buf, "rsn_pairwise=") ||
 395                      str_starts(buf, "wpa_key_mgmt=") ||
 396                      str_starts(buf, "wpa_passphrase="))) {
 397                         fprintf(nconf, "#WPS# %s", buf);
 398                 } else
 399                         fprintf(nconf, "%s", buf);
 400         }
 401
 402         fclose(nconf);
 403         fclose(oconf);
 404
 405         if (rename(tmp_fname, hapd->iface->config_fname) < 0) {
 406                 wpa_printf(MSG_WARNING, "WPS: Failed to rename the updated "
 407                            "configuration file: %s", strerror(errno));
 408                 os_free(tmp_fname);
 409                 return -1;
 410         }
 411
 412         os_free(tmp_fname);
 413
 414         /* Schedule configuration reload after short period of time to allow
 415          * EAP-WSC to be finished.
 416          */
 417         eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface,
 418                                NULL);
 419
 420         /* TODO: dualband AP may need to update multiple configuration files */
 421
 422         wpa_printf(MSG_DEBUG, "WPS: AP configuration updated");
 423
 424         return 0;
 425 }
 426
 427
 428 static void hostapd_pwd_auth_fail(struct hostapd_data *hapd,
 429                                   struct wps_event_pwd_auth_fail *data)
 430 {
 431         FILE *f;
 432
 433         if (!data->enrollee)
 434                 return;
 435
 436         /*
 437          * Registrar failed to prove its knowledge of the AP PIN. Lock AP setup
 438          * if this happens multiple times.
 439          */
 440         hapd->ap_pin_failures++;
 441         if (hapd->ap_pin_failures < 4)
 442                 return;
 443
 444         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_LOCKED);
 445         hapd->wps->ap_setup_locked = 1;
 446
 447         wps_registrar_update_ie(hapd->wps->registrar);
 448
 449         if (hapd->conf->wps_cred_processing == 1)
 450                 return;
 451
 452         f = fopen(hapd->iface->config_fname, "a");
 453         if (f == NULL) {
 454                 wpa_printf(MSG_WARNING, "WPS: Could not append to the current "
 455                            "configuration file");
 456                 return;
 457         }
 458
 459         fprintf(f, "# WPS AP Setup Locked based on possible attack\n");
 460         fprintf(f, "ap_setup_locked=1\n");
 461         fclose(f);
 462
 463         /* TODO: dualband AP may need to update multiple configuration files */
 464
 465         wpa_printf(MSG_DEBUG, "WPS: AP configuration updated");
 466 }
 467
 468
 469 static void hostapd_wps_event_cb(void *ctx, enum wps_event event,
 470                                  union wps_event_data *data)
 471 {
 472         struct hostapd_data *hapd = ctx;
 473
 474         if (event == WPS_EV_PWD_AUTH_FAIL)
 475                 hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail);
 476 }
 477
 478
 479 static void hostapd_wps_clear_ies(struct hostapd_data *hapd)
 480 {
 481         os_free(hapd->wps_beacon_ie);
 482         hapd->wps_beacon_ie = NULL;
 483         hapd->wps_beacon_ie_len = 0;
 484         hostapd_set_wps_beacon_ie(hapd, NULL, 0);
 485
 486         os_free(hapd->wps_probe_resp_ie);
 487         hapd->wps_probe_resp_ie = NULL;
 488         hapd->wps_probe_resp_ie_len = 0;
 489         hostapd_set_wps_probe_resp_ie(hapd, NULL, 0);
 490 }
 491
 492
 493 int hostapd_init_wps(struct hostapd_data *hapd,
 494                      struct hostapd_bss_config *conf)
 495 {
 496         struct wps_context *wps;
 497         struct wps_registrar_config cfg;
 498
 499         if (conf->wps_state == 0) {
 500                 hostapd_wps_clear_ies(hapd);
 501                 return 0;
 502         }
 503
 504         wps = os_zalloc(sizeof(*wps));
 505         if (wps == NULL)
 506                 return -1;
 507
 508         wps->cred_cb = hostapd_wps_cred_cb;
 509         wps->event_cb = hostapd_wps_event_cb;
 510         wps->cb_ctx = hapd;
 511
 512         os_memset(&cfg, 0, sizeof(cfg));
 513         wps->wps_state = hapd->conf->wps_state;
 514         wps->ap_setup_locked = hapd->conf->ap_setup_locked;
 515         if (is_nil_uuid(hapd->conf->uuid)) {
 516                 uuid_gen_mac_addr(hapd->own_addr, wps->uuid);
 517                 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC address",
 518                             wps->uuid, UUID_LEN);
 519         } else
 520                 os_memcpy(wps->uuid, hapd->conf->uuid, UUID_LEN);
 521         wps->ssid_len = hapd->conf->ssid.ssid_len;
 522         os_memcpy(wps->ssid, hapd->conf->ssid.ssid, wps->ssid_len);
 523         wps->ap = 1;
 524         os_memcpy(wps->dev.mac_addr, hapd->own_addr, ETH_ALEN);
 525         wps->dev.device_name = hapd->conf->device_name ?
 526                 os_strdup(hapd->conf->device_name) : NULL;
 527         wps->dev.manufacturer = hapd->conf->manufacturer ?
 528                 os_strdup(hapd->conf->manufacturer) : NULL;
 529         wps->dev.model_name = hapd->conf->model_name ?
 530                 os_strdup(hapd->conf->model_name) : NULL;
 531         wps->dev.model_number = hapd->conf->model_number ?
 532                 os_strdup(hapd->conf->model_number) : NULL;
 533         wps->dev.serial_number = hapd->conf->serial_number ?
 534                 os_strdup(hapd->conf->serial_number) : NULL;
 535         if (hapd->conf->config_methods) {
 536                 char *m = hapd->conf->config_methods;
 537                 if (os_strstr(m, "label"))
 538                         wps->config_methods |= WPS_CONFIG_LABEL;
 539                 if (os_strstr(m, "display"))
 540                         wps->config_methods |= WPS_CONFIG_DISPLAY;
 541                 if (os_strstr(m, "push_button"))
 542                         wps->config_methods |= WPS_CONFIG_PUSHBUTTON;
 543                 if (os_strstr(m, "keypad"))
 544                         wps->config_methods |= WPS_CONFIG_KEYPAD;
 545         }
 546         if (hapd->conf->device_type &&
 547             wps_dev_type_str2bin(hapd->conf->device_type,
 548                                  wps->dev.pri_dev_type) < 0) {
 549                 wpa_printf(MSG_ERROR, "WPS: Invalid device_type");
 550                 os_free(wps);
 551                 return -1;
 552         }
 553         wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version);
 554         wps->dev.rf_bands = hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
 555                 WPS_RF_50GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
 556
 557         if (conf->wpa & WPA_PROTO_RSN) {
 558                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
 559                         wps->auth_types |= WPS_AUTH_WPA2PSK;
 560                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
 561                         wps->auth_types |= WPS_AUTH_WPA2;
 562
 563                 if (conf->rsn_pairwise & WPA_CIPHER_CCMP)
 564                         wps->encr_types |= WPS_ENCR_AES;
 565                 if (conf->rsn_pairwise & WPA_CIPHER_TKIP)
 566                         wps->encr_types |= WPS_ENCR_TKIP;
 567         }
 568
 569         if (conf->wpa & WPA_PROTO_WPA) {
 570                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
 571                         wps->auth_types |= WPS_AUTH_WPAPSK;
 572                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
 573                         wps->auth_types |= WPS_AUTH_WPA;
 574
 575                 if (conf->wpa_pairwise & WPA_CIPHER_CCMP)
 576                         wps->encr_types |= WPS_ENCR_AES;
 577                 if (conf->wpa_pairwise & WPA_CIPHER_TKIP)
 578                         wps->encr_types |= WPS_ENCR_TKIP;
 579         }
 580
 581         if (conf->ssid.security_policy == SECURITY_PLAINTEXT) {
 582                 wps->encr_types |= WPS_ENCR_NONE;
 583                 wps->auth_types |= WPS_AUTH_OPEN;
 584         } else if (conf->ssid.security_policy == SECURITY_STATIC_WEP) {
 585                 wps->encr_types |= WPS_ENCR_WEP;
 586                 if (conf->auth_algs & WPA_AUTH_ALG_OPEN)
 587                         wps->auth_types |= WPS_AUTH_OPEN;
 588                 if (conf->auth_algs & WPA_AUTH_ALG_SHARED)
 589                         wps->auth_types |= WPS_AUTH_SHARED;
 590         } else if (conf->ssid.security_policy == SECURITY_IEEE_802_1X) {
 591                 wps->auth_types |= WPS_AUTH_OPEN;
 592                 if (conf->default_wep_key_len)
 593                         wps->encr_types |= WPS_ENCR_WEP;
 594                 else
 595                         wps->encr_types |= WPS_ENCR_NONE;
 596         }
 597
 598         if (conf->ssid.wpa_psk_file) {
 599                 /* Use per-device PSKs */
 600         } else if (conf->ssid.wpa_passphrase) {
 601                 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase);
 602                 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase);
 603         } else if (conf->ssid.wpa_psk) {
 604                 wps->network_key = os_malloc(2 * PMK_LEN + 1);
 605                 if (wps->network_key == NULL) {
 606                         os_free(wps);
 607                         return -1;
 608                 }
 609                 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1,
 610                                  conf->ssid.wpa_psk->psk, PMK_LEN);
 611                 wps->network_key_len = 2 * PMK_LEN;
 612         } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) {
 613                 wps->network_key = os_malloc(conf->ssid.wep.len[0]);
 614                 if (wps->network_key == NULL) {
 615                         os_free(wps);
 616                         return -1;
 617                 }
 618                 os_memcpy(wps->network_key, conf->ssid.wep.key[0],
 619                           conf->ssid.wep.len[0]);
 620                 wps->network_key_len = conf->ssid.wep.len[0];
 621         }
 622
 623         if (conf->wps_state == WPS_STATE_NOT_CONFIGURED) {
 624                 /* Override parameters to enable security by default */
 625                 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
 626                 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
 627         }
 628
 629         wps->ap_settings = conf->ap_settings;
 630         wps->ap_settings_len = conf->ap_settings_len;
 631
 632         cfg.new_psk_cb = hostapd_wps_new_psk_cb;
 633         cfg.set_ie_cb = hostapd_wps_set_ie_cb;
 634         cfg.pin_needed_cb = hostapd_wps_pin_needed_cb;
 635         cfg.reg_success_cb = hostapd_wps_reg_success_cb;
 636         cfg.cb_ctx = hapd;
 637         cfg.skip_cred_build = conf->skip_cred_build;
 638         cfg.extra_cred = conf->extra_cred;
 639         cfg.extra_cred_len = conf->extra_cred_len;
 640         cfg.disable_auto_conf = (hapd->conf->wps_cred_processing == 1) &&
 641                 conf->skip_cred_build;
 642         if (conf->ssid.security_policy == SECURITY_STATIC_WEP)
 643                 cfg.static_wep_only = 1;
 644
 645         wps->registrar = wps_registrar_init(wps, &cfg);
 646         if (wps->registrar == NULL) {
 647                 printf("Failed to initialize WPS Registrar\n");
 648                 os_free(wps->network_key);
 649                 os_free(wps);
 650                 return -1;
 651         }
 652
 653 #ifdef CONFIG_WPS_UPNP
 654         wps->friendly_name = hapd->conf->friendly_name;
 655         wps->manufacturer_url = hapd->conf->manufacturer_url;
 656         wps->model_description = hapd->conf->model_description;
 657         wps->model_url = hapd->conf->model_url;
 658         wps->upc = hapd->conf->upc;
 659
 660         if (hostapd_wps_upnp_init(hapd, wps) < 0) {
 661                 wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP");
 662                 wps_registrar_deinit(wps->registrar);
 663                 os_free(wps->network_key);
 664                 os_free(wps);
 665                 return -1;
 666         }
 667 #endif /* CONFIG_WPS_UPNP */
 668
 669         hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd);
 670
 671         hapd->wps = wps;
 672
 673         return 0;
 674 }
 675
 676
 677 void hostapd_deinit_wps(struct hostapd_data *hapd)
 678 {
 679         if (hapd->wps == NULL)
 680                 return;
 681 #ifdef CONFIG_WPS_UPNP
 682         hostapd_wps_upnp_deinit(hapd);
 683 #endif /* CONFIG_WPS_UPNP */
 684         wps_registrar_deinit(hapd->wps->registrar);
 685         os_free(hapd->wps->network_key);
 686         wps_device_data_free(&hapd->wps->dev);
 687         wpabuf_free(hapd->wps->dh_pubkey);
 688         wpabuf_free(hapd->wps->dh_privkey);
 689         wpabuf_free(hapd->wps->oob_conf.pubkey_hash);
 690         wpabuf_free(hapd->wps->oob_conf.dev_password);
 691         wps_free_pending_msgs(hapd->wps->upnp_msgs);
 692         os_free(hapd->wps);
 693         hapd->wps = NULL;
 694         hostapd_wps_clear_ies(hapd);
 695 }
 696
 697
 698 int hostapd_wps_add_pin(struct hostapd_data *hapd, const char *uuid,
 699                         const char *pin, int timeout)
 700 {
 701         u8 u[UUID_LEN];
 702         int any = 0;
 703
 704         if (hapd->wps == NULL)
 705                 return -1;
 706         if (os_strcmp(uuid, "any") == 0)
 707                 any = 1;
 708         else if (uuid_str2bin(uuid, u))
 709                 return -1;
 710         return wps_registrar_add_pin(hapd->wps->registrar, any ? NULL : u,
 711                                      (const u8 *) pin, os_strlen(pin),
 712                                      timeout);
 713 }
 714
 715
 716 int hostapd_wps_button_pushed(struct hostapd_data *hapd)
 717 {
 718         if (hapd->wps == NULL)
 719                 return -1;
 720         return wps_registrar_button_pushed(hapd->wps->registrar);
 721 }
 722
 723
 724 #ifdef CONFIG_WPS_OOB
 725 int hostapd_wps_start_oob(struct hostapd_data *hapd, char *device_type,
 726                           char *path, char *method, char *name)
 727 {
 728         struct wps_context *wps = hapd->wps;
 729         struct oob_device_data *oob_dev;
 730
 731         oob_dev = wps_get_oob_device(device_type);
 732         if (oob_dev == NULL)
 733                 return -1;
 734         oob_dev->device_path = path;
 735         oob_dev->device_name = name;
 736         wps->oob_conf.oob_method = wps_get_oob_method(method);
 737
 738         if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) {
 739                 /*
 740                  * Use pre-configured DH keys in order to be able to write the
 741                  * key hash into the OOB file.
 742                  */
 743                 wpabuf_free(wps->dh_pubkey);
 744                 wpabuf_free(wps->dh_privkey);
 745                 wps->dh_privkey = NULL;
 746                 wps->dh_pubkey = dh_init(dh_groups_get(WPS_DH_GROUP),
 747                                          &wps->dh_privkey);
 748                 wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
 749                 if (wps->dh_pubkey == NULL) {
 750                         wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
 751                                    "Diffie-Hellman handshake");
 752                         return -1;
 753                 }
 754         }
 755
 756         if (wps_process_oob(wps, oob_dev, 1) < 0)
 757                 goto error;
 758
 759         if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
 760              wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
 761             hostapd_wps_add_pin(hapd, "any",
 762                                 wpabuf_head(wps->oob_conf.dev_password), 0) <
 763             0)
 764                 goto error;
 765
 766         return 0;
 767
 768 error:
 769         wpabuf_free(wps->dh_pubkey);
 770         wps->dh_pubkey = NULL;
 771         wpabuf_free(wps->dh_privkey);
 772         wps->dh_privkey = NULL;
 773         return -1;
 774 }
 775 #endif /* CONFIG_WPS_OOB */
 776
 777
 778 static void hostapd_wps_probe_req_rx(void *ctx, const u8 *addr,
 779                                      const u8 *ie, size_t ie_len)
 780 {
 781         struct hostapd_data *hapd = ctx;
 782         struct wpabuf *wps_ie;
 783
 784         if (hapd->wps == NULL)
 785                 return;
 786
 787         wps_ie = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
 788         if (wps_ie == NULL)
 789                 return;
 790
 791         if (wpabuf_len(wps_ie) > 0) {
 792                 wps_registrar_probe_req_rx(hapd->wps->registrar, addr, wps_ie);
 793 #ifdef CONFIG_WPS_UPNP
 794                 /* FIX: what exactly should be included in the WLANEvent?
 795                  * WPS attributes? Full ProbeReq frame? */
 796                 upnp_wps_device_send_wlan_event(hapd->wps_upnp, addr,
 797                                                 UPNP_WPS_WLANEVENT_TYPE_PROBE,
 798                                                 wps_ie);
 799 #endif /* CONFIG_WPS_UPNP */
 800         }
 801
 802         wpabuf_free(wps_ie);
 803 }
 804
 805
 806 #ifdef CONFIG_WPS_UPNP
 807
 808 static struct wpabuf *
 809 hostapd_rx_req_get_device_info(void *priv, struct upnp_wps_peer *peer)
 810 {
 811         struct hostapd_data *hapd = priv;
 812         struct wps_config cfg;
 813         struct wps_data *wps;
 814         enum wsc_op_code op_code;
 815         struct wpabuf *m1;
 816
 817         /*
 818          * Request for DeviceInfo, i.e., M1 TLVs. This is a start of WPS
 819          * registration over UPnP with the AP acting as an Enrollee. It should
 820          * be noted that this is frequently used just to get the device data,
 821          * i.e., there may not be any intent to actually complete the
 822          * registration.
 823          */
 824
 825         if (peer->wps)
 826                 wps_deinit(peer->wps);
 827
 828         os_memset(&cfg, 0, sizeof(cfg));
 829         cfg.wps = hapd->wps;
 830         cfg.pin = (u8 *) hapd->conf->ap_pin;
 831         cfg.pin_len = os_strlen(hapd->conf->ap_pin);
 832         wps = wps_init(&cfg);
 833         if (wps == NULL)
 834                 return NULL;
 835
 836         m1 = wps_get_msg(wps, &op_code);
 837         if (m1 == NULL) {
 838                 wps_deinit(wps);
 839                 return NULL;
 840         }
 841
 842         peer->wps = wps;
 843
 844         return m1;
 845 }
 846
 847
 848 static struct wpabuf *
 849 hostapd_rx_req_put_message(void *priv, struct upnp_wps_peer *peer,
 850                            const struct wpabuf *msg)
 851 {
 852         enum wps_process_res res;
 853         enum wsc_op_code op_code;
 854
 855         /* PutMessage: msg = InMessage, return OutMessage */
 856         res = wps_process_msg(peer->wps, WSC_UPnP, msg);
 857         if (res == WPS_FAILURE)
 858                 return NULL;
 859         return wps_get_msg(peer->wps, &op_code);
 860 }
 861
 862
 863 static int hostapd_rx_req_put_wlan_response(
 864         void *priv, enum upnp_wps_wlanevent_type ev_type,
 865         const u8 *mac_addr, const struct wpabuf *msg,
 866         enum wps_msg_type msg_type)
 867 {
 868         struct hostapd_data *hapd = priv;
 869         struct sta_info *sta;
 870         struct upnp_pending_message *p;
 871
 872         wpa_printf(MSG_DEBUG, "WPS UPnP: PutWLANResponse ev_type=%d mac_addr="
 873                    MACSTR, ev_type, MAC2STR(mac_addr));
 874         wpa_hexdump(MSG_MSGDUMP, "WPS UPnP: PutWLANResponse NewMessage",
 875                     wpabuf_head(msg), wpabuf_len(msg));
 876         if (ev_type != UPNP_WPS_WLANEVENT_TYPE_EAP) {
 877                 wpa_printf(MSG_DEBUG, "WPS UPnP: Ignored unexpected "
 878                            "PutWLANResponse WLANEventType %d", ev_type);
 879                 return -1;
 880         }
 881
 882         /*
 883          * EAP response to ongoing to WPS Registration. Send it to EAP-WSC
 884          * server implementation for delivery to the peer.
 885          */
 886
 887         sta = ap_get_sta(hapd, mac_addr);
 888         if (!sta) {
 889                 /*
 890                  * Workaround - Intel wsccmd uses bogus NewWLANEventMAC:
 891                  * Pick STA that is in an ongoing WPS registration without
 892                  * checking the MAC address.
 893                  */
 894                 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found based "
 895                            "on NewWLANEventMAC; try wildcard match");
 896                 for (sta = hapd->sta_list; sta; sta = sta->next) {
 897                         if (sta->eapol_sm && (sta->flags & WLAN_STA_WPS))
 898                                 break;
 899                 }
 900         }
 901
 902         if (!sta) {
 903                 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found");
 904                 return 0;
 905         }
 906
 907         p = os_zalloc(sizeof(*p));
 908         if (p == NULL)
 909                 return -1;
 910         os_memcpy(p->addr, sta->addr, ETH_ALEN);
 911         p->msg = wpabuf_dup(msg);
 912         p->type = msg_type;
 913         p->next = hapd->wps->upnp_msgs;
 914         hapd->wps->upnp_msgs = p;
 915
 916         return eapol_auth_eap_pending_cb(sta->eapol_sm, sta->eapol_sm->eap);
 917 }
 918
 919
 920 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
 921                                  struct wps_context *wps)
 922 {
 923         struct upnp_wps_device_ctx *ctx;
 924
 925         if (!hapd->conf->upnp_iface)
 926                 return 0;
 927         ctx = os_zalloc(sizeof(*ctx));
 928         if (ctx == NULL)
 929                 return -1;
 930
 931         ctx->rx_req_get_device_info = hostapd_rx_req_get_device_info;
 932         ctx->rx_req_put_message = hostapd_rx_req_put_message;
 933         ctx->rx_req_put_wlan_response = hostapd_rx_req_put_wlan_response;
 934
 935         hapd->wps_upnp = upnp_wps_device_init(ctx, wps, hapd);
 936         if (hapd->wps_upnp == NULL) {
 937                 os_free(ctx);
 938                 return -1;
 939         }
 940         wps->wps_upnp = hapd->wps_upnp;
 941
 942         if (upnp_wps_device_start(hapd->wps_upnp, hapd->conf->upnp_iface)) {
 943                 upnp_wps_device_deinit(hapd->wps_upnp);
 944                 hapd->wps_upnp = NULL;
 945                 return -1;
 946         }
 947
 948         return 0;
 949 }
 950
 951
 952 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd)
 953 {
 954         upnp_wps_device_deinit(hapd->wps_upnp);
 955 }
 956
 957 #endif /* CONFIG_WPS_UPNP */
 958
 959
 960 int hostapd_wps_get_mib_sta(struct hostapd_data *hapd, const u8 *addr,
 961                             char *buf, size_t buflen)
 962 {
 963         return wps_registrar_get_info(hapd->wps->registrar, addr, buf, buflen);
 964 }