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 "wps/wps.h"
  26 #include "wps/wps_defs.h"
  27 #include "wps/wps_dev_attr.h"
  28 #include "hostapd.h"
  29 #include "driver_i.h"
  30 #include "sta_flags.h"
  31 #include "sta_info.h"
  32 #include "wps_hostapd.h"
  33
  34
  35 #ifdef CONFIG_WPS_UPNP
  36 #include "wps/wps_upnp.h"
  37 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
  38                                  struct wps_context *wps);
  39 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd);
  40 #endif /* CONFIG_WPS_UPNP */
  41
  42 static void hostapd_wps_probe_req_rx(void *ctx, const u8 *addr,
  43                                      const u8 *ie, size_t ie_len);
  44
  45
  46 static int hostapd_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
  47                                   size_t psk_len)
  48 {
  49         struct hostapd_data *hapd = ctx;
  50         struct hostapd_wpa_psk *p;
  51         struct hostapd_ssid *ssid = &hapd->conf->ssid;
  52
  53         wpa_printf(MSG_DEBUG, "Received new WPA/WPA2-PSK from WPS for STA "
  54                    MACSTR, MAC2STR(mac_addr));
  55         wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
  56
  57         if (psk_len != PMK_LEN) {
  58                 wpa_printf(MSG_DEBUG, "Unexpected PSK length %lu",
  59                            (unsigned long) psk_len);
  60                 return -1;
  61         }
  62
  63         /* Add the new PSK to runtime PSK list */
  64         p = os_zalloc(sizeof(*p));
  65         if (p == NULL)
  66                 return -1;
  67         os_memcpy(p->addr, mac_addr, ETH_ALEN);
  68         os_memcpy(p->psk, psk, PMK_LEN);
  69
  70         p->next = ssid->wpa_psk;
  71         ssid->wpa_psk = p;
  72
  73         if (ssid->wpa_psk_file) {
  74                 FILE *f;
  75                 char hex[PMK_LEN * 2 + 1];
  76                 /* Add the new PSK to PSK list file */
  77                 f = fopen(ssid->wpa_psk_file, "a");
  78                 if (f == NULL) {
  79                         wpa_printf(MSG_DEBUG, "Failed to add the PSK to "
  80                                    "'%s'", ssid->wpa_psk_file);
  81                         return -1;
  82                 }
  83
  84                 wpa_snprintf_hex(hex, sizeof(hex), psk, psk_len);
  85                 fprintf(f, MACSTR " %s\n", MAC2STR(mac_addr), hex);
  86                 fclose(f);
  87         }
  88
  89         return 0;
  90 }
  91
  92
  93 static int hostapd_wps_set_ie_cb(void *ctx, const u8 *beacon_ie,
  94                                  size_t beacon_ie_len, const u8 *probe_resp_ie,
  95                                  size_t probe_resp_ie_len)
  96 {
  97         struct hostapd_data *hapd = ctx;
  98
  99         os_free(hapd->wps_beacon_ie);
 100         if (beacon_ie_len == 0) {
 101                 hapd->wps_beacon_ie = NULL;
 102                 hapd->wps_beacon_ie_len = 0;
 103         } else {
 104                 hapd->wps_beacon_ie = os_malloc(beacon_ie_len);
 105                 if (hapd->wps_beacon_ie == NULL) {
 106                         hapd->wps_beacon_ie_len = 0;
 107                         return -1;
 108                 }
 109                 os_memcpy(hapd->wps_beacon_ie, beacon_ie, beacon_ie_len);
 110                 hapd->wps_beacon_ie_len = beacon_ie_len;
 111         }
 112         hostapd_set_wps_beacon_ie(hapd, hapd->wps_beacon_ie,
 113                                   hapd->wps_beacon_ie_len);
 114
 115         os_free(hapd->wps_probe_resp_ie);
 116         if (probe_resp_ie_len == 0) {
 117                 hapd->wps_probe_resp_ie = NULL;
 118                 hapd->wps_probe_resp_ie_len = 0;
 119         } else {
 120                 hapd->wps_probe_resp_ie = os_malloc(probe_resp_ie_len);
 121                 if (hapd->wps_probe_resp_ie == NULL) {
 122                         hapd->wps_probe_resp_ie_len = 0;
 123                         return -1;
 124                 }
 125                 os_memcpy(hapd->wps_probe_resp_ie, probe_resp_ie,
 126                           probe_resp_ie_len);
 127                 hapd->wps_probe_resp_ie_len = probe_resp_ie_len;
 128         }
 129         hostapd_set_wps_probe_resp_ie(hapd, hapd->wps_probe_resp_ie,
 130                                       hapd->wps_probe_resp_ie_len);
 131
 132         return 0;
 133 }
 134
 135
 136 static void hostapd_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
 137                                       const struct wps_device_data *dev)
 138 {
 139         struct hostapd_data *hapd = ctx;
 140         char uuid[40], txt[400];
 141         int len;
 142         char devtype[WPS_DEV_TYPE_BUFSIZE];
 143         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 144                 return;
 145         wpa_printf(MSG_DEBUG, "WPS: PIN needed for E-UUID %s", uuid);
 146         len = os_snprintf(txt, sizeof(txt), WPS_EVENT_PIN_NEEDED
 147                           "%s " MACSTR " [%s|%s|%s|%s|%s|%s]",
 148                           uuid, MAC2STR(dev->mac_addr), dev->device_name,
 149                           dev->manufacturer, dev->model_name,
 150                           dev->model_number, dev->serial_number,
 151                           wps_dev_type_bin2str(dev->pri_dev_type, devtype,
 152                                                sizeof(devtype)));
 153         if (len > 0 && len < (int) sizeof(txt))
 154                 wpa_msg(hapd->msg_ctx, MSG_INFO, "%s", txt);
 155
 156         if (hapd->conf->wps_pin_requests) {
 157                 FILE *f;
 158                 struct os_time t;
 159                 f = fopen(hapd->conf->wps_pin_requests, "a");
 160                 if (f == NULL)
 161                         return;
 162                 os_get_time(&t);
 163                 fprintf(f, "%ld\t%s\t" MACSTR "\t%s\t%s\t%s\t%s\t%s"
 164                         "\t%s\n",
 165                         t.sec, uuid, MAC2STR(dev->mac_addr), dev->device_name,
 166                         dev->manufacturer, dev->model_name, dev->model_number,
 167                         dev->serial_number,
 168                         wps_dev_type_bin2str(dev->pri_dev_type, devtype,
 169                                              sizeof(devtype)));
 170                 fclose(f);
 171         }
 172 }
 173
 174
 175 static void hostapd_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 176                                        const u8 *uuid_e)
 177 {
 178         struct hostapd_data *hapd = ctx;
 179         char uuid[40];
 180         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 181                 return;
 182         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_REG_SUCCESS MACSTR " %s",
 183                 MAC2STR(mac_addr), uuid);
 184 }
 185
 186
 187 static int str_starts(const char *str, const char *start)
 188 {
 189         return os_strncmp(str, start, os_strlen(start)) == 0;
 190 }
 191
 192
 193 static void wps_reload_config(void *eloop_data, void *user_ctx)
 194 {
 195         struct hostapd_iface *iface = eloop_data;
 196
 197         wpa_printf(MSG_DEBUG, "WPS: Reload configuration data");
 198         if (hostapd_reload_config(iface) < 0) {
 199                 wpa_printf(MSG_WARNING, "WPS: Failed to reload the updated "
 200                            "configuration");
 201         }
 202 }
 203
 204
 205 static int hostapd_wps_cred_cb(void *ctx, const struct wps_credential *cred)
 206 {
 207         struct hostapd_data *hapd = ctx;
 208         FILE *oconf, *nconf;
 209         size_t len, i;
 210         char *tmp_fname;
 211         char buf[1024];
 212         int multi_bss;
 213         int wpa;
 214
 215         wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
 216                         cred->cred_attr, cred->cred_attr_len);
 217
 218         wpa_printf(MSG_DEBUG, "WPS: Received new AP Settings");
 219         wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
 220         wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
 221                    cred->auth_type);
 222         wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
 223         wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
 224         wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
 225                         cred->key, cred->key_len);
 226         wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
 227                    MAC2STR(cred->mac_addr));
 228
 229         if ((hapd->conf->wps_cred_processing == 1 ||
 230              hapd->conf->wps_cred_processing == 2) && cred->cred_attr) {
 231                 size_t blen = cred->cred_attr_len * 2 + 1;
 232                 char *_buf = os_malloc(blen);
 233                 if (_buf) {
 234                         wpa_snprintf_hex(_buf, blen,
 235                                          cred->cred_attr, cred->cred_attr_len);
 236                         wpa_msg(hapd->msg_ctx, MSG_INFO, "%s%s",
 237                                 WPS_EVENT_NEW_AP_SETTINGS, _buf);
 238                         os_free(_buf);
 239                 }
 240         } else
 241                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS);
 242
 243         if (hapd->conf->wps_cred_processing == 1)
 244                 return 0;
 245
 246         os_memcpy(hapd->wps->ssid, cred->ssid, cred->ssid_len);
 247         hapd->wps->ssid_len = cred->ssid_len;
 248         hapd->wps->encr_types = cred->encr_type;
 249         hapd->wps->auth_types = cred->auth_type;
 250         if (cred->key_len == 0) {
 251                 os_free(hapd->wps->network_key);
 252                 hapd->wps->network_key = NULL;
 253                 hapd->wps->network_key_len = 0;
 254         } else {
 255                 if (hapd->wps->network_key == NULL ||
 256                     hapd->wps->network_key_len < cred->key_len) {
 257                         hapd->wps->network_key_len = 0;
 258                         os_free(hapd->wps->network_key);
 259                         hapd->wps->network_key = os_malloc(cred->key_len);
 260                         if (hapd->wps->network_key == NULL)
 261                                 return -1;
 262                 }
 263                 hapd->wps->network_key_len = cred->key_len;
 264                 os_memcpy(hapd->wps->network_key, cred->key, cred->key_len);
 265         }
 266         hapd->wps->wps_state = WPS_STATE_CONFIGURED;
 267
 268         len = os_strlen(hapd->iface->config_fname) + 5;
 269         tmp_fname = os_malloc(len);
 270         if (tmp_fname == NULL)
 271                 return -1;
 272         os_snprintf(tmp_fname, len, "%s-new", hapd->iface->config_fname);
 273
 274         oconf = fopen(hapd->iface->config_fname, "r");
 275         if (oconf == NULL) {
 276                 wpa_printf(MSG_WARNING, "WPS: Could not open current "
 277                            "configuration file");
 278                 os_free(tmp_fname);
 279                 return -1;
 280         }
 281
 282         nconf = fopen(tmp_fname, "w");
 283         if (nconf == NULL) {
 284                 wpa_printf(MSG_WARNING, "WPS: Could not write updated "
 285                            "configuration file");
 286                 os_free(tmp_fname);
 287                 fclose(oconf);
 288                 return -1;
 289         }
 290
 291         fprintf(nconf, "# WPS configuration - START\n");
 292
 293         fprintf(nconf, "wps_state=2\n");
 294
 295         fprintf(nconf, "ssid=");
 296         for (i = 0; i < cred->ssid_len; i++)
 297                 fputc(cred->ssid[i], nconf);
 298         fprintf(nconf, "\n");
 299
 300         if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
 301             (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
 302                 wpa = 3;
 303         else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
 304                 wpa = 2;
 305         else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
 306                 wpa = 1;
 307         else
 308                 wpa = 0;
 309
 310         if (wpa) {
 311                 char *prefix;
 312                 fprintf(nconf, "wpa=%d\n", wpa);
 313
 314                 fprintf(nconf, "wpa_key_mgmt=");
 315                 prefix = "";
 316                 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA)) {
 317                         fprintf(nconf, "WPA-EAP");
 318                         prefix = " ";
 319                 }
 320                 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK))
 321                         fprintf(nconf, "%sWPA-PSK", prefix);
 322                 fprintf(nconf, "\n");
 323
 324                 fprintf(nconf, "wpa_pairwise=");
 325                 prefix = "";
 326                 if (cred->encr_type & WPS_ENCR_AES) {
 327                         fprintf(nconf, "CCMP");
 328                         prefix = " ";
 329                 }
 330                 if (cred->encr_type & WPS_ENCR_TKIP) {
 331                         fprintf(nconf, "%sTKIP", prefix);
 332                 }
 333                 fprintf(nconf, "\n");
 334
 335                 if (cred->key_len >= 8 && cred->key_len < 64) {
 336                         fprintf(nconf, "wpa_passphrase=");
 337                         for (i = 0; i < cred->key_len; i++)
 338                                 fputc(cred->key[i], nconf);
 339                         fprintf(nconf, "\n");
 340                 } else if (cred->key_len == 64) {
 341                         fprintf(nconf, "wpa_psk=");
 342                         for (i = 0; i < cred->key_len; i++)
 343                                 fputc(cred->key[i], nconf);
 344                         fprintf(nconf, "\n");
 345                 } else {
 346                         wpa_printf(MSG_WARNING, "WPS: Invalid key length %lu "
 347                                    "for WPA/WPA2",
 348                                    (unsigned long) cred->key_len);
 349                 }
 350
 351                 fprintf(nconf, "auth_algs=1\n");
 352         } else {
 353                 if ((cred->auth_type & WPS_AUTH_OPEN) &&
 354                     (cred->auth_type & WPS_AUTH_SHARED))
 355                         fprintf(nconf, "auth_algs=3\n");
 356                 else if (cred->auth_type & WPS_AUTH_SHARED)
 357                         fprintf(nconf, "auth_algs=2\n");
 358                 else
 359                         fprintf(nconf, "auth_algs=1\n");
 360
 361                 if (cred->encr_type & WPS_ENCR_WEP && cred->key_idx <= 4) {
 362                         int key_idx = cred->key_idx;
 363                         if (key_idx)
 364                                 key_idx--;
 365                         fprintf(nconf, "wep_default_key=%d\n", key_idx);
 366                         fprintf(nconf, "wep_key%d=", key_idx);
 367                         if (cred->key_len == 10 || cred->key_len == 26) {
 368                                 /* WEP key as a hex string */
 369                                 for (i = 0; i < cred->key_len; i++)
 370                                         fputc(cred->key[i], nconf);
 371                         } else {
 372                                 /* Raw WEP key; convert to hex */
 373                                 for (i = 0; i < cred->key_len; i++)
 374                                         fprintf(nconf, "%02x", cred->key[i]);
 375                         }
 376                         fprintf(nconf, "\n");
 377                 }
 378         }
 379
 380         fprintf(nconf, "# WPS configuration - END\n");
 381
 382         multi_bss = 0;
 383         while (fgets(buf, sizeof(buf), oconf)) {
 384                 if (os_strncmp(buf, "bss=", 4) == 0)
 385                         multi_bss = 1;
 386                 if (!multi_bss &&
 387                     (str_starts(buf, "ssid=") ||
 388                      str_starts(buf, "auth_algs=") ||
 389                      str_starts(buf, "wps_state=") ||
 390                      str_starts(buf, "wpa=") ||
 391                      str_starts(buf, "wpa_psk=") ||
 392                      str_starts(buf, "wpa_pairwise=") ||
 393                      str_starts(buf, "rsn_pairwise=") ||
 394                      str_starts(buf, "wpa_key_mgmt=") ||
 395                      str_starts(buf, "wpa_passphrase="))) {
 396                         fprintf(nconf, "#WPS# %s", buf);
 397                 } else
 398                         fprintf(nconf, "%s", buf);
 399         }
 400
 401         fclose(nconf);
 402         fclose(oconf);
 403
 404         if (rename(tmp_fname, hapd->iface->config_fname) < 0) {
 405                 wpa_printf(MSG_WARNING, "WPS: Failed to rename the updated "
 406                            "configuration file: %s", strerror(errno));
 407                 os_free(tmp_fname);
 408                 return -1;
 409         }
 410
 411         os_free(tmp_fname);
 412
 413         /* Schedule configuration reload after short period of time to allow
 414          * EAP-WSC to be finished.
 415          */
 416         eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface,
 417                                NULL);
 418
 419         /* TODO: dualband AP may need to update multiple configuration files */
 420
 421         wpa_printf(MSG_DEBUG, "WPS: AP configuration updated");
 422
 423         return 0;
 424 }
 425
 426
 427 static void hostapd_pwd_auth_fail(struct hostapd_data *hapd,
 428                                   struct wps_event_pwd_auth_fail *data)
 429 {
 430         FILE *f;
 431
 432         if (!data->enrollee)
 433                 return;
 434
 435         /*
 436          * Registrar failed to prove its knowledge of the AP PIN. Lock AP setup
 437          * if this happens multiple times.
 438          */
 439         hapd->ap_pin_failures++;
 440         if (hapd->ap_pin_failures < 4)
 441                 return;
 442
 443         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_LOCKED);
 444         hapd->wps->ap_setup_locked = 1;
 445
 446         wps_registrar_update_ie(hapd->wps->registrar);
 447
 448         if (hapd->conf->wps_cred_processing == 1)
 449                 return;
 450
 451         f = fopen(hapd->iface->config_fname, "a");
 452         if (f == NULL) {
 453                 wpa_printf(MSG_WARNING, "WPS: Could not append to the current "
 454                            "configuration file");
 455                 return;
 456         }
 457
 458         fprintf(f, "# WPS AP Setup Locked based on possible attack\n");
 459         fprintf(f, "ap_setup_locked=1\n");
 460         fclose(f);
 461
 462         /* TODO: dualband AP may need to update multiple configuration files */
 463
 464         wpa_printf(MSG_DEBUG, "WPS: AP configuration updated");
 465 }
 466
 467
 468 static void hostapd_wps_event_cb(void *ctx, enum wps_event event,
 469                                  union wps_event_data *data)
 470 {
 471         struct hostapd_data *hapd = ctx;
 472
 473         if (event == WPS_EV_PWD_AUTH_FAIL)
 474                 hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail);
 475 }
 476
 477
 478 static void hostapd_wps_clear_ies(struct hostapd_data *hapd)
 479 {
 480         os_free(hapd->wps_beacon_ie);
 481         hapd->wps_beacon_ie = NULL;
 482         hapd->wps_beacon_ie_len = 0;
 483         hostapd_set_wps_beacon_ie(hapd, NULL, 0);
 484
 485         os_free(hapd->wps_probe_resp_ie);
 486         hapd->wps_probe_resp_ie = NULL;
 487         hapd->wps_probe_resp_ie_len = 0;
 488         hostapd_set_wps_probe_resp_ie(hapd, NULL, 0);
 489 }
 490
 491
 492 int hostapd_init_wps(struct hostapd_data *hapd,
 493                      struct hostapd_bss_config *conf)
 494 {
 495         struct wps_context *wps;
 496         struct wps_registrar_config cfg;
 497
 498         if (conf->wps_state == 0) {
 499                 hostapd_wps_clear_ies(hapd);
 500                 return 0;
 501         }
 502
 503         wps = os_zalloc(sizeof(*wps));
 504         if (wps == NULL)
 505                 return -1;
 506
 507         wps->cred_cb = hostapd_wps_cred_cb;
 508         wps->event_cb = hostapd_wps_event_cb;
 509         wps->cb_ctx = hapd;
 510
 511         os_memset(&cfg, 0, sizeof(cfg));
 512         wps->wps_state = hapd->conf->wps_state;
 513         wps->ap_setup_locked = hapd->conf->ap_setup_locked;
 514         if (is_nil_uuid(hapd->conf->uuid)) {
 515                 uuid_gen_mac_addr(hapd->own_addr, wps->uuid);
 516                 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC address",
 517                             wps->uuid, UUID_LEN);
 518         } else
 519                 os_memcpy(wps->uuid, hapd->conf->uuid, UUID_LEN);
 520         wps->ssid_len = hapd->conf->ssid.ssid_len;
 521         os_memcpy(wps->ssid, hapd->conf->ssid.ssid, wps->ssid_len);
 522         wps->ap = 1;
 523         os_memcpy(wps->dev.mac_addr, hapd->own_addr, ETH_ALEN);
 524         wps->dev.device_name = hapd->conf->device_name ?
 525                 os_strdup(hapd->conf->device_name) : NULL;
 526         wps->dev.manufacturer = hapd->conf->manufacturer ?
 527                 os_strdup(hapd->conf->manufacturer) : NULL;
 528         wps->dev.model_name = hapd->conf->model_name ?
 529                 os_strdup(hapd->conf->model_name) : NULL;
 530         wps->dev.model_number = hapd->conf->model_number ?
 531                 os_strdup(hapd->conf->model_number) : NULL;
 532         wps->dev.serial_number = hapd->conf->serial_number ?
 533                 os_strdup(hapd->conf->serial_number) : NULL;
 534         if (hapd->conf->config_methods) {
 535                 char *m = hapd->conf->config_methods;
 536                 if (os_strstr(m, "label"))
 537                         wps->config_methods |= WPS_CONFIG_LABEL;
 538                 if (os_strstr(m, "display"))
 539                         wps->config_methods |= WPS_CONFIG_DISPLAY;
 540                 if (os_strstr(m, "push_button"))
 541                         wps->config_methods |= WPS_CONFIG_PUSHBUTTON;
 542                 if (os_strstr(m, "keypad"))
 543                         wps->config_methods |= WPS_CONFIG_KEYPAD;
 544         }
 545         if (hapd->conf->device_type &&
 546             wps_dev_type_str2bin(hapd->conf->device_type,
 547                                  wps->dev.pri_dev_type) < 0) {
 548                 wpa_printf(MSG_ERROR, "WPS: Invalid device_type");
 549                 os_free(wps);
 550                 return -1;
 551         }
 552         wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version);
 553         wps->dev.rf_bands = hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
 554                 WPS_RF_50GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
 555
 556         if (conf->wpa & WPA_PROTO_RSN) {
 557                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
 558                         wps->auth_types |= WPS_AUTH_WPA2PSK;
 559                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
 560                         wps->auth_types |= WPS_AUTH_WPA2;
 561
 562                 if (conf->rsn_pairwise & WPA_CIPHER_CCMP)
 563                         wps->encr_types |= WPS_ENCR_AES;
 564                 if (conf->rsn_pairwise & WPA_CIPHER_TKIP)
 565                         wps->encr_types |= WPS_ENCR_TKIP;
 566         }
 567
 568         if (conf->wpa & WPA_PROTO_WPA) {
 569                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
 570                         wps->auth_types |= WPS_AUTH_WPAPSK;
 571                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
 572                         wps->auth_types |= WPS_AUTH_WPA;
 573
 574                 if (conf->wpa_pairwise & WPA_CIPHER_CCMP)
 575                         wps->encr_types |= WPS_ENCR_AES;
 576                 if (conf->wpa_pairwise & WPA_CIPHER_TKIP)
 577                         wps->encr_types |= WPS_ENCR_TKIP;
 578         }
 579
 580         if (conf->ssid.security_policy == SECURITY_PLAINTEXT) {
 581                 wps->encr_types |= WPS_ENCR_NONE;
 582                 wps->auth_types |= WPS_AUTH_OPEN;
 583         } else if (conf->ssid.security_policy == SECURITY_STATIC_WEP) {
 584                 wps->encr_types |= WPS_ENCR_WEP;
 585                 if (conf->auth_algs & WPA_AUTH_ALG_OPEN)
 586                         wps->auth_types |= WPS_AUTH_OPEN;
 587                 if (conf->auth_algs & WPA_AUTH_ALG_SHARED)
 588                         wps->auth_types |= WPS_AUTH_SHARED;
 589         } else if (conf->ssid.security_policy == SECURITY_IEEE_802_1X) {
 590                 wps->auth_types |= WPS_AUTH_OPEN;
 591                 if (conf->default_wep_key_len)
 592                         wps->encr_types |= WPS_ENCR_WEP;
 593                 else
 594                         wps->encr_types |= WPS_ENCR_NONE;
 595         }
 596
 597         if (conf->ssid.wpa_psk_file) {
 598                 /* Use per-device PSKs */
 599         } else if (conf->ssid.wpa_passphrase) {
 600                 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase);
 601                 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase);
 602         } else if (conf->ssid.wpa_psk) {
 603                 wps->network_key = os_malloc(2 * PMK_LEN + 1);
 604                 if (wps->network_key == NULL) {
 605                         os_free(wps);
 606                         return -1;
 607                 }
 608                 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1,
 609                                  conf->ssid.wpa_psk->psk, PMK_LEN);
 610                 wps->network_key_len = 2 * PMK_LEN;
 611         } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) {
 612                 wps->network_key = os_malloc(conf->ssid.wep.len[0]);
 613                 if (wps->network_key == NULL) {
 614                         os_free(wps);
 615                         return -1;
 616                 }
 617                 os_memcpy(wps->network_key, conf->ssid.wep.key[0],
 618                           conf->ssid.wep.len[0]);
 619                 wps->network_key_len = conf->ssid.wep.len[0];
 620         }
 621
 622         if (conf->wps_state == WPS_STATE_NOT_CONFIGURED) {
 623                 /* Override parameters to enable security by default */
 624                 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
 625                 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
 626         }
 627
 628         wps->ap_settings = conf->ap_settings;
 629         wps->ap_settings_len = conf->ap_settings_len;
 630
 631         cfg.new_psk_cb = hostapd_wps_new_psk_cb;
 632         cfg.set_ie_cb = hostapd_wps_set_ie_cb;
 633         cfg.pin_needed_cb = hostapd_wps_pin_needed_cb;
 634         cfg.reg_success_cb = hostapd_wps_reg_success_cb;
 635         cfg.cb_ctx = hapd;
 636         cfg.skip_cred_build = conf->skip_cred_build;
 637         cfg.extra_cred = conf->extra_cred;
 638         cfg.extra_cred_len = conf->extra_cred_len;
 639         cfg.disable_auto_conf = (hapd->conf->wps_cred_processing == 1) &&
 640                 conf->skip_cred_build;
 641         if (conf->ssid.security_policy == SECURITY_STATIC_WEP)
 642                 cfg.static_wep_only = 1;
 643
 644         wps->registrar = wps_registrar_init(wps, &cfg);
 645         if (wps->registrar == NULL) {
 646                 printf("Failed to initialize WPS Registrar\n");
 647                 os_free(wps->network_key);
 648                 os_free(wps);
 649                 return -1;
 650         }
 651
 652 #ifdef CONFIG_WPS_UPNP
 653         wps->friendly_name = hapd->conf->friendly_name;
 654         wps->manufacturer_url = hapd->conf->manufacturer_url;
 655         wps->model_description = hapd->conf->model_description;
 656         wps->model_url = hapd->conf->model_url;
 657         wps->upc = hapd->conf->upc;
 658
 659         if (hostapd_wps_upnp_init(hapd, wps) < 0) {
 660                 wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP");
 661                 wps_registrar_deinit(wps->registrar);
 662                 os_free(wps->network_key);
 663                 os_free(wps);
 664                 return -1;
 665         }
 666 #endif /* CONFIG_WPS_UPNP */
 667
 668         hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd);
 669
 670         hapd->wps = wps;
 671
 672         return 0;
 673 }
 674
 675
 676 void hostapd_deinit_wps(struct hostapd_data *hapd)
 677 {
 678         if (hapd->wps == NULL)
 679                 return;
 680 #ifdef CONFIG_WPS_UPNP
 681         hostapd_wps_upnp_deinit(hapd);
 682 #endif /* CONFIG_WPS_UPNP */
 683         wps_registrar_deinit(hapd->wps->registrar);
 684         os_free(hapd->wps->network_key);
 685         wps_device_data_free(&hapd->wps->dev);
 686         wpabuf_free(hapd->wps->dh_pubkey);
 687         wpabuf_free(hapd->wps->dh_privkey);
 688         wpabuf_free(hapd->wps->oob_conf.pubkey_hash);
 689         wpabuf_free(hapd->wps->oob_conf.dev_password);
 690         wps_free_pending_msgs(hapd->wps->upnp_msgs);
 691         os_free(hapd->wps);
 692         hapd->wps = NULL;
 693         hostapd_wps_clear_ies(hapd);
 694 }
 695
 696
 697 int hostapd_wps_add_pin(struct hostapd_data *hapd, const char *uuid,
 698                         const char *pin, int timeout)
 699 {
 700         u8 u[UUID_LEN];
 701         int any = 0;
 702
 703         if (hapd->wps == NULL)
 704                 return -1;
 705         if (os_strcmp(uuid, "any") == 0)
 706                 any = 1;
 707         else if (uuid_str2bin(uuid, u))
 708                 return -1;
 709         return wps_registrar_add_pin(hapd->wps->registrar, any ? NULL : u,
 710                                      (const u8 *) pin, os_strlen(pin),
 711                                      timeout);
 712 }
 713
 714
 715 int hostapd_wps_button_pushed(struct hostapd_data *hapd)
 716 {
 717         if (hapd->wps == NULL)
 718                 return -1;
 719         return wps_registrar_button_pushed(hapd->wps->registrar);
 720 }
 721
 722
 723 #ifdef CONFIG_WPS_OOB
 724 int hostapd_wps_start_oob(struct hostapd_data *hapd, char *device_type,
 725                           char *path, char *method, char *name)
 726 {
 727         struct wps_context *wps = hapd->wps;
 728         struct oob_device_data *oob_dev;
 729
 730         oob_dev = wps_get_oob_device(device_type);
 731         if (oob_dev == NULL)
 732                 return -1;
 733         oob_dev->device_path = path;
 734         oob_dev->device_name = name;
 735         wps->oob_conf.oob_method = wps_get_oob_method(method);
 736
 737         if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) {
 738                 /*
 739                  * Use pre-configured DH keys in order to be able to write the
 740                  * key hash into the OOB file.
 741                  */
 742                 wpabuf_free(wps->dh_pubkey);
 743                 wpabuf_free(wps->dh_privkey);
 744                 wps->dh_privkey = NULL;
 745                 wps->dh_pubkey = dh_init(dh_groups_get(WPS_DH_GROUP),
 746                                          &wps->dh_privkey);
 747                 wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
 748                 if (wps->dh_pubkey == NULL) {
 749                         wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
 750                                    "Diffie-Hellman handshake");
 751                         return -1;
 752                 }
 753         }
 754
 755         if (wps_process_oob(wps, oob_dev, 1) < 0)
 756                 goto error;
 757
 758         if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
 759              wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
 760             hostapd_wps_add_pin(hapd, "any",
 761                                 wpabuf_head(wps->oob_conf.dev_password), 0) <
 762             0)
 763                 goto error;
 764
 765         return 0;
 766
 767 error:
 768         wpabuf_free(wps->dh_pubkey);
 769         wps->dh_pubkey = NULL;
 770         wpabuf_free(wps->dh_privkey);
 771         wps->dh_privkey = NULL;
 772         return -1;
 773 }
 774 #endif /* CONFIG_WPS_OOB */
 775
 776
 777 static void hostapd_wps_probe_req_rx(void *ctx, const u8 *addr,
 778                                      const u8 *ie, size_t ie_len)
 779 {
 780         struct hostapd_data *hapd = ctx;
 781         struct wpabuf *wps_ie;
 782
 783         if (hapd->wps == NULL)
 784                 return;
 785
 786         wps_ie = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
 787         if (wps_ie == NULL)
 788                 return;
 789
 790         if (wpabuf_len(wps_ie) > 0) {
 791                 wps_registrar_probe_req_rx(hapd->wps->registrar, addr, wps_ie);
 792 #ifdef CONFIG_WPS_UPNP
 793                 /* FIX: what exactly should be included in the WLANEvent?
 794                  * WPS attributes? Full ProbeReq frame? */
 795                 upnp_wps_device_send_wlan_event(hapd->wps_upnp, addr,
 796                                                 UPNP_WPS_WLANEVENT_TYPE_PROBE,
 797                                                 wps_ie);
 798 #endif /* CONFIG_WPS_UPNP */
 799         }
 800
 801         wpabuf_free(wps_ie);
 802 }
 803
 804
 805 #ifdef CONFIG_WPS_UPNP
 806
 807 static struct wpabuf *
 808 hostapd_rx_req_get_device_info(void *priv, struct upnp_wps_peer *peer)
 809 {
 810         struct hostapd_data *hapd = priv;
 811         struct wps_config cfg;
 812         struct wps_data *wps;
 813         enum wsc_op_code op_code;
 814         struct wpabuf *m1;
 815
 816         /*
 817          * Request for DeviceInfo, i.e., M1 TLVs. This is a start of WPS
 818          * registration over UPnP with the AP acting as an Enrollee. It should
 819          * be noted that this is frequently used just to get the device data,
 820          * i.e., there may not be any intent to actually complete the
 821          * registration.
 822          */
 823
 824         if (peer->wps)
 825                 wps_deinit(peer->wps);
 826
 827         os_memset(&cfg, 0, sizeof(cfg));
 828         cfg.wps = hapd->wps;
 829         cfg.pin = (u8 *) hapd->conf->ap_pin;
 830         cfg.pin_len = os_strlen(hapd->conf->ap_pin);
 831         wps = wps_init(&cfg);
 832         if (wps == NULL)
 833                 return NULL;
 834
 835         m1 = wps_get_msg(wps, &op_code);
 836         if (m1 == NULL) {
 837                 wps_deinit(wps);
 838                 return NULL;
 839         }
 840
 841         peer->wps = wps;
 842
 843         return m1;
 844 }
 845
 846
 847 static struct wpabuf *
 848 hostapd_rx_req_put_message(void *priv, struct upnp_wps_peer *peer,
 849                            const struct wpabuf *msg)
 850 {
 851         enum wps_process_res res;
 852         enum wsc_op_code op_code;
 853
 854         /* PutMessage: msg = InMessage, return OutMessage */
 855         res = wps_process_msg(peer->wps, WSC_UPnP, msg);
 856         if (res == WPS_FAILURE)
 857                 return NULL;
 858         return wps_get_msg(peer->wps, &op_code);
 859 }
 860
 861
 862 static int hostapd_rx_req_put_wlan_response(
 863         void *priv, enum upnp_wps_wlanevent_type ev_type,
 864         const u8 *mac_addr, const struct wpabuf *msg,
 865         enum wps_msg_type msg_type)
 866 {
 867         struct hostapd_data *hapd = priv;
 868         struct sta_info *sta;
 869         struct upnp_pending_message *p;
 870
 871         wpa_printf(MSG_DEBUG, "WPS UPnP: PutWLANResponse ev_type=%d mac_addr="
 872                    MACSTR, ev_type, MAC2STR(mac_addr));
 873         wpa_hexdump(MSG_MSGDUMP, "WPS UPnP: PutWLANResponse NewMessage",
 874                     wpabuf_head(msg), wpabuf_len(msg));
 875         if (ev_type != UPNP_WPS_WLANEVENT_TYPE_EAP) {
 876                 wpa_printf(MSG_DEBUG, "WPS UPnP: Ignored unexpected "
 877                            "PutWLANResponse WLANEventType %d", ev_type);
 878                 return -1;
 879         }
 880
 881         /*
 882          * EAP response to ongoing to WPS Registration. Send it to EAP-WSC
 883          * server implementation for delivery to the peer.
 884          */
 885
 886         sta = ap_get_sta(hapd, mac_addr);
 887         if (!sta) {
 888                 /*
 889                  * Workaround - Intel wsccmd uses bogus NewWLANEventMAC:
 890                  * Pick STA that is in an ongoing WPS registration without
 891                  * checking the MAC address.
 892                  */
 893                 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found based "
 894                            "on NewWLANEventMAC; try wildcard match");
 895                 for (sta = hapd->sta_list; sta; sta = sta->next) {
 896                         if (sta->eapol_sm && (sta->flags & WLAN_STA_WPS))
 897                                 break;
 898                 }
 899         }
 900
 901         if (!sta) {
 902                 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found");
 903                 return 0;
 904         }
 905
 906         p = os_zalloc(sizeof(*p));
 907         if (p == NULL)
 908                 return -1;
 909         os_memcpy(p->addr, sta->addr, ETH_ALEN);
 910         p->msg = wpabuf_dup(msg);
 911         p->type = msg_type;
 912         p->next = hapd->wps->upnp_msgs;
 913         hapd->wps->upnp_msgs = p;
 914
 915         return eapol_auth_eap_pending_cb(sta->eapol_sm, sta->eapol_sm->eap);
 916 }
 917
 918
 919 static int hostapd_rx_req_set_selected_registrar(void *priv,
 920                                                  const struct wpabuf *msg)
 921 {
 922         struct hostapd_data *hapd = priv;
 923         return wps_registrar_set_selected_registrar(hapd->wps->registrar, msg);
 924 }
 925
 926
 927 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
 928                                  struct wps_context *wps)
 929 {
 930         struct upnp_wps_device_ctx *ctx;
 931
 932         if (!hapd->conf->upnp_iface)
 933                 return 0;
 934         ctx = os_zalloc(sizeof(*ctx));
 935         if (ctx == NULL)
 936                 return -1;
 937
 938         ctx->rx_req_get_device_info = hostapd_rx_req_get_device_info;
 939         ctx->rx_req_put_message = hostapd_rx_req_put_message;
 940         ctx->rx_req_put_wlan_response = hostapd_rx_req_put_wlan_response;
 941         ctx->rx_req_set_selected_registrar =
 942                 hostapd_rx_req_set_selected_registrar;
 943
 944         hapd->wps_upnp = upnp_wps_device_init(ctx, wps, hapd);
 945         if (hapd->wps_upnp == NULL) {
 946                 os_free(ctx);
 947                 return -1;
 948         }
 949         wps->wps_upnp = hapd->wps_upnp;
 950
 951         if (upnp_wps_device_start(hapd->wps_upnp, hapd->conf->upnp_iface)) {
 952                 upnp_wps_device_deinit(hapd->wps_upnp);
 953                 hapd->wps_upnp = NULL;
 954                 return -1;
 955         }
 956
 957         return 0;
 958 }
 959
 960
 961 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd)
 962 {
 963         upnp_wps_device_deinit(hapd->wps_upnp);
 964 }
 965
 966 #endif /* CONFIG_WPS_UPNP */
 967
 968
 969 int hostapd_wps_get_mib_sta(struct hostapd_data *hapd, const u8 *addr,
 970                             char *buf, size_t buflen)
 971 {
 972         return wps_registrar_get_info(hapd->wps->registrar, addr, buf, buflen);
 973 }