git.maemo.org Git - wpasupplicant/blob - 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 "hostapd.h"
  18 #include "driver_i.h"
  19 #include "eloop.h"
  20 #include "uuid.h"
  21 #include "wpa_ctrl.h"
  22 #include "ieee802_11_defs.h"
  23 #include "sta_info.h"
  24 #include "eapol_sm.h"
  25 #include "wps/wps.h"
  26 #include "wps/wps_defs.h"
  27 #include "wps/wps_dev_attr.h"
  28 #include "wps_hostapd.h"
  29 #include "dh_groups.h"
  30
  31
  32 #ifdef CONFIG_WPS_UPNP
  33 #include "wps/wps_upnp.h"
  34 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
  35                                  struct wps_context *wps);
  36 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd);
  37 #endif /* CONFIG_WPS_UPNP */
  38
  39 static void hostapd_wps_probe_req_rx(void *ctx, const u8 *addr,
  40                                      const u8 *ie, size_t ie_len);
  41
  42
  43 static int hostapd_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
  44                                   size_t psk_len)
  45 {
  46         struct hostapd_data *hapd = ctx;
  47         struct hostapd_wpa_psk *p;
  48         struct hostapd_ssid *ssid = &hapd->conf->ssid;
  49
  50         wpa_printf(MSG_DEBUG, "Received new WPA/WPA2-PSK from WPS for STA "
  51                    MACSTR, MAC2STR(mac_addr));
  52         wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
  53
  54         if (psk_len != PMK_LEN) {
  55                 wpa_printf(MSG_DEBUG, "Unexpected PSK length %lu",
  56                            (unsigned long) psk_len);
  57                 return -1;
  58         }
  59
  60         /* Add the new PSK to runtime PSK list */
  61         p = os_zalloc(sizeof(*p));
  62         if (p == NULL)
  63                 return -1;
  64         os_memcpy(p->addr, mac_addr, ETH_ALEN);
  65         os_memcpy(p->psk, psk, PMK_LEN);
  66
  67         p->next = ssid->wpa_psk;
  68         ssid->wpa_psk = p;
  69
  70         if (ssid->wpa_psk_file) {
  71                 FILE *f;
  72                 char hex[PMK_LEN * 2 + 1];
  73                 /* Add the new PSK to PSK list file */
  74                 f = fopen(ssid->wpa_psk_file, "a");
  75                 if (f == NULL) {
  76                         wpa_printf(MSG_DEBUG, "Failed to add the PSK to "
  77                                    "'%s'", ssid->wpa_psk_file);
  78                         return -1;
  79                 }
  80
  81                 wpa_snprintf_hex(hex, sizeof(hex), psk, psk_len);
  82                 fprintf(f, MACSTR " %s\n", MAC2STR(mac_addr), hex);
  83                 fclose(f);
  84         }
  85
  86         return 0;
  87 }
  88
  89
  90 static int hostapd_wps_set_ie_cb(void *ctx, const u8 *beacon_ie,
  91                                  size_t beacon_ie_len, const u8 *probe_resp_ie,
  92                                  size_t probe_resp_ie_len)
  93 {
  94         struct hostapd_data *hapd = ctx;
  95
  96         os_free(hapd->wps_beacon_ie);
  97         if (beacon_ie_len == 0) {
  98                 hapd->wps_beacon_ie = NULL;
  99                 hapd->wps_beacon_ie_len = 0;
 100         } else {
 101                 hapd->wps_beacon_ie = os_malloc(beacon_ie_len);
 102                 if (hapd->wps_beacon_ie == NULL) {
 103                         hapd->wps_beacon_ie_len = 0;
 104                         return -1;
 105                 }
 106                 os_memcpy(hapd->wps_beacon_ie, beacon_ie, beacon_ie_len);
 107                 hapd->wps_beacon_ie_len = beacon_ie_len;
 108         }
 109         hostapd_set_wps_beacon_ie(hapd, hapd->wps_beacon_ie,
 110                                   hapd->wps_beacon_ie_len);
 111
 112         os_free(hapd->wps_probe_resp_ie);
 113         if (probe_resp_ie_len == 0) {
 114                 hapd->wps_probe_resp_ie = NULL;
 115                 hapd->wps_probe_resp_ie_len = 0;
 116         } else {
 117                 hapd->wps_probe_resp_ie = os_malloc(probe_resp_ie_len);
 118                 if (hapd->wps_probe_resp_ie == NULL) {
 119                         hapd->wps_probe_resp_ie_len = 0;
 120                         return -1;
 121                 }
 122                 os_memcpy(hapd->wps_probe_resp_ie, probe_resp_ie,
 123                           probe_resp_ie_len);
 124                 hapd->wps_probe_resp_ie_len = probe_resp_ie_len;
 125         }
 126         hostapd_set_wps_probe_resp_ie(hapd, hapd->wps_probe_resp_ie,
 127                                       hapd->wps_probe_resp_ie_len);
 128
 129         return 0;
 130 }
 131
 132
 133 static void hostapd_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
 134                                       const struct wps_device_data *dev)
 135 {
 136         struct hostapd_data *hapd = ctx;
 137         char uuid[40], txt[400];
 138         int len;
 139         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 140                 return;
 141         wpa_printf(MSG_DEBUG, "WPS: PIN needed for E-UUID %s", uuid);
 142         len = os_snprintf(txt, sizeof(txt), WPS_EVENT_PIN_NEEDED
 143                           "%s " MACSTR " [%s|%s|%s|%s|%s|%d-%08X-%d]",
 144                           uuid, MAC2STR(dev->mac_addr), dev->device_name,
 145                           dev->manufacturer, dev->model_name,
 146                           dev->model_number, dev->serial_number,
 147                           dev->categ, dev->oui, dev->sub_categ);
 148         if (len > 0 && len < (int) sizeof(txt))
 149                 wpa_msg(hapd, MSG_INFO, "%s", txt);
 150
 151         if (hapd->conf->wps_pin_requests) {
 152                 FILE *f;
 153                 struct os_time t;
 154                 f = fopen(hapd->conf->wps_pin_requests, "a");
 155                 if (f == NULL)
 156                         return;
 157                 os_get_time(&t);
 158                 fprintf(f, "%ld\t%s\t" MACSTR "\t%s\t%s\t%s\t%s\t%s"
 159                         "\t%d-%08X-%d\n",
 160                         t.sec, uuid, MAC2STR(dev->mac_addr), dev->device_name,
 161                         dev->manufacturer, dev->model_name, dev->model_number,
 162                         dev->serial_number,
 163                         dev->categ, dev->oui, dev->sub_categ);
 164                 fclose(f);
 165         }
 166 }
 167
 168
 169 static void hostapd_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 170                                        const u8 *uuid_e)
 171 {
 172         struct hostapd_data *hapd = ctx;
 173         char uuid[40];
 174         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 175                 return;
 176         wpa_msg(hapd, MSG_INFO, WPS_EVENT_REG_SUCCESS MACSTR " %s",
 177                 MAC2STR(mac_addr), uuid);
 178 }
 179
 180
 181 static int str_starts(const char *str, const char *start)
 182 {
 183         return os_strncmp(str, start, os_strlen(start)) == 0;
 184 }
 185
 186
 187 static void wps_reload_config(void *eloop_data, void *user_ctx)
 188 {
 189         struct hostapd_iface *iface = eloop_data;
 190
 191         wpa_printf(MSG_DEBUG, "WPS: Reload configuration data");
 192         if (hostapd_reload_config(iface) < 0) {
 193                 wpa_printf(MSG_WARNING, "WPS: Failed to reload the updated "
 194                            "configuration");
 195         }
 196 }
 197
 198
 199 static int hostapd_wps_cred_cb(void *ctx, const struct wps_credential *cred)
 200 {
 201         struct hostapd_data *hapd = ctx;
 202         FILE *oconf, *nconf;
 203         size_t len, i;
 204         char *tmp_fname;
 205         char buf[1024];
 206         int multi_bss;
 207         int wpa;
 208
 209         wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
 210                         cred->cred_attr, cred->cred_attr_len);
 211
 212         wpa_printf(MSG_DEBUG, "WPS: Received new AP Settings");
 213         wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
 214         wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
 215                    cred->auth_type);
 216         wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
 217         wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
 218         wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
 219                         cred->key, cred->key_len);
 220         wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
 221                    MAC2STR(cred->mac_addr));
 222
 223         if ((hapd->conf->wps_cred_processing == 1 ||
 224              hapd->conf->wps_cred_processing == 2) && cred->cred_attr) {
 225                 size_t blen = cred->cred_attr_len * 2 + 1;
 226                 char *_buf = os_malloc(blen);
 227                 if (_buf) {
 228                         wpa_snprintf_hex(_buf, blen,
 229                                          cred->cred_attr, cred->cred_attr_len);
 230                         wpa_msg(hapd, MSG_INFO, "%s%s",
 231                                 WPS_EVENT_NEW_AP_SETTINGS, _buf);
 232                         os_free(_buf);
 233                 }
 234         } else
 235                 wpa_msg(hapd, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS);
 236
 237         if (hapd->conf->wps_cred_processing == 1)
 238                 return 0;
 239
 240         os_memcpy(hapd->wps->ssid, cred->ssid, cred->ssid_len);
 241         hapd->wps->ssid_len = cred->ssid_len;
 242         hapd->wps->encr_types = cred->encr_type;
 243         hapd->wps->auth_types = cred->auth_type;
 244         if (cred->key == NULL) {
 245                 os_free(hapd->wps->network_key);
 246                 hapd->wps->network_key = NULL;
 247                 hapd->wps->network_key_len = 0;
 248         } else {
 249                 if (hapd->wps->network_key == NULL ||
 250                     hapd->wps->network_key_len < cred->key_len) {
 251                         hapd->wps->network_key_len = 0;
 252                         os_free(hapd->wps->network_key);
 253                         hapd->wps->network_key = os_malloc(cred->key_len);
 254                         if (hapd->wps->network_key == NULL)
 255                                 return -1;
 256                 }
 257                 hapd->wps->network_key_len = cred->key_len;
 258                 os_memcpy(hapd->wps->network_key, cred->key, cred->key_len);
 259         }
 260         hapd->wps->wps_state = WPS_STATE_CONFIGURED;
 261
 262         len = os_strlen(hapd->iface->config_fname) + 5;
 263         tmp_fname = os_malloc(len);
 264         if (tmp_fname == NULL)
 265                 return -1;
 266         os_snprintf(tmp_fname, len, "%s-new", hapd->iface->config_fname);
 267
 268         oconf = fopen(hapd->iface->config_fname, "r");
 269         if (oconf == NULL) {
 270                 wpa_printf(MSG_WARNING, "WPS: Could not open current "
 271                            "configuration file");
 272                 os_free(tmp_fname);
 273                 return -1;
 274         }
 275
 276         nconf = fopen(tmp_fname, "w");
 277         if (nconf == NULL) {
 278                 wpa_printf(MSG_WARNING, "WPS: Could not write updated "
 279                            "configuration file");
 280                 os_free(tmp_fname);
 281                 fclose(oconf);
 282                 return -1;
 283         }
 284
 285         fprintf(nconf, "# WPS configuration - START\n");
 286
 287         fprintf(nconf, "wps_state=2\n");
 288
 289         fprintf(nconf, "ssid=");
 290         for (i = 0; i < cred->ssid_len; i++)
 291                 fputc(cred->ssid[i], nconf);
 292         fprintf(nconf, "\n");
 293
 294         if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
 295             (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
 296                 wpa = 3;
 297         else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
 298                 wpa = 2;
 299         else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
 300                 wpa = 1;
 301         else
 302                 wpa = 0;
 303
 304         if (wpa) {
 305                 char *prefix;
 306                 fprintf(nconf, "wpa=%d\n", wpa);
 307
 308                 fprintf(nconf, "wpa_key_mgmt=");
 309                 prefix = "";
 310                 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA)) {
 311                         fprintf(nconf, "WPA-EAP");
 312                         prefix = " ";
 313                 }
 314                 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK))
 315                         fprintf(nconf, "%sWPA-PSK", prefix);
 316                 fprintf(nconf, "\n");
 317
 318                 fprintf(nconf, "wpa_pairwise=");
 319                 prefix = "";
 320                 if (cred->encr_type & WPS_ENCR_AES) {
 321                         fprintf(nconf, "CCMP");
 322                         prefix = " ";
 323                 }
 324                 if (cred->encr_type & WPS_ENCR_TKIP) {
 325                         fprintf(nconf, "%sTKIP", prefix);
 326                 }
 327                 fprintf(nconf, "\n");
 328
 329                 if (cred->key_len >= 8 && cred->key_len < 64) {
 330                         fprintf(nconf, "wpa_passphrase=");
 331                         for (i = 0; i < cred->key_len; i++)
 332                                 fputc(cred->key[i], nconf);
 333                         fprintf(nconf, "\n");
 334                 } else if (cred->key_len == 64) {
 335                         fprintf(nconf, "wpa_psk=");
 336                         for (i = 0; i < cred->key_len; i++)
 337                                 fputc(cred->key[i], nconf);
 338                         fprintf(nconf, "\n");
 339                 } else {
 340                         wpa_printf(MSG_WARNING, "WPS: Invalid key length %lu "
 341                                    "for WPA/WPA2",
 342                                    (unsigned long) cred->key_len);
 343                 }
 344
 345                 fprintf(nconf, "auth_algs=1\n");
 346         } else {
 347                 if ((cred->auth_type & WPS_AUTH_OPEN) &&
 348                     (cred->auth_type & WPS_AUTH_SHARED))
 349                         fprintf(nconf, "auth_algs=3\n");
 350                 else if (cred->auth_type & WPS_AUTH_SHARED)
 351                         fprintf(nconf, "auth_algs=2\n");
 352                 else
 353                         fprintf(nconf, "auth_algs=1\n");
 354
 355                 if (cred->encr_type & WPS_ENCR_WEP && cred->key_idx <= 4) {
 356                         int key_idx = cred->key_idx;
 357                         if (key_idx)
 358                                 key_idx--;
 359                         fprintf(nconf, "wep_default_key=%d\n", key_idx);
 360                         fprintf(nconf, "wep_key%d=", key_idx);
 361                         if (cred->key_len == 10 || cred->key_len == 26) {
 362                                 /* WEP key as a hex string */
 363                                 for (i = 0; i < cred->key_len; i++)
 364                                         fputc(cred->key[i], nconf);
 365                         } else {
 366                                 /* Raw WEP key; convert to hex */
 367                                 for (i = 0; i < cred->key_len; i++)
 368                                         fprintf(nconf, "%02x", cred->key[i]);
 369                         }
 370                         fprintf(nconf, "\n");
 371                 }
 372         }
 373
 374         fprintf(nconf, "# WPS configuration - END\n");
 375
 376         multi_bss = 0;
 377         while (fgets(buf, sizeof(buf), oconf)) {
 378                 if (os_strncmp(buf, "bss=", 4) == 0)
 379                         multi_bss = 1;
 380                 if (!multi_bss &&
 381                     (str_starts(buf, "ssid=") ||
 382                      str_starts(buf, "auth_algs=") ||
 383                      str_starts(buf, "wps_state=") ||
 384                      str_starts(buf, "wpa=") ||
 385                      str_starts(buf, "wpa_psk=") ||
 386                      str_starts(buf, "wpa_pairwise=") ||
 387                      str_starts(buf, "rsn_pairwise=") ||
 388                      str_starts(buf, "wpa_key_mgmt=") ||
 389                      str_starts(buf, "wpa_passphrase="))) {
 390                         fprintf(nconf, "#WPS# %s", buf);
 391                 } else
 392                         fprintf(nconf, "%s", buf);
 393         }
 394
 395         fclose(nconf);
 396         fclose(oconf);
 397
 398         if (rename(tmp_fname, hapd->iface->config_fname) < 0) {
 399                 wpa_printf(MSG_WARNING, "WPS: Failed to rename the updated "
 400                            "configuration file: %s", strerror(errno));
 401                 os_free(tmp_fname);
 402                 return -1;
 403         }
 404
 405         os_free(tmp_fname);
 406
 407         /* Schedule configuration reload after short period of time to allow
 408          * EAP-WSC to be finished.
 409          */
 410         eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface,
 411                                NULL);
 412
 413         /* TODO: dualband AP may need to update multiple configuration files */
 414
 415         wpa_printf(MSG_DEBUG, "WPS: AP configuration updated");
 416
 417         return 0;
 418 }
 419
 420
 421 static void hostapd_pwd_auth_fail(struct hostapd_data *hapd,
 422                                   struct wps_event_pwd_auth_fail *data)
 423 {
 424         FILE *f;
 425
 426         if (!data->enrollee)
 427                 return;
 428
 429         /*
 430          * Registrar failed to prove its knowledge of the AP PIN. Lock AP setup
 431          * if this happens multiple times.
 432          */
 433         hapd->ap_pin_failures++;
 434         if (hapd->ap_pin_failures < 4)
 435                 return;
 436
 437         wpa_msg(hapd, MSG_INFO, WPS_EVENT_AP_SETUP_LOCKED);
 438         hapd->wps->ap_setup_locked = 1;
 439
 440         wps_registrar_update_ie(hapd->wps->registrar);
 441
 442         if (hapd->conf->wps_cred_processing == 1)
 443                 return;
 444
 445         f = fopen(hapd->iface->config_fname, "a");
 446         if (f == NULL) {
 447                 wpa_printf(MSG_WARNING, "WPS: Could not append to the current "
 448                            "configuration file");
 449                 return;
 450         }
 451
 452         fprintf(f, "# WPS AP Setup Locked based on possible attack\n");
 453         fprintf(f, "ap_setup_locked=1\n");
 454         fclose(f);
 455
 456         /* TODO: dualband AP may need to update multiple configuration files */
 457
 458         wpa_printf(MSG_DEBUG, "WPS: AP configuration updated");
 459 }
 460
 461
 462 static void hostapd_wps_event_cb(void *ctx, enum wps_event event,
 463                                  union wps_event_data *data)
 464 {
 465         struct hostapd_data *hapd = ctx;
 466
 467         if (event == WPS_EV_PWD_AUTH_FAIL)
 468                 hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail);
 469 }
 470
 471
 472 static void hostapd_wps_clear_ies(struct hostapd_data *hapd)
 473 {
 474         os_free(hapd->wps_beacon_ie);
 475         hapd->wps_beacon_ie = NULL;
 476         hapd->wps_beacon_ie_len = 0;
 477         hostapd_set_wps_beacon_ie(hapd, NULL, 0);
 478
 479         os_free(hapd->wps_probe_resp_ie);
 480         hapd->wps_probe_resp_ie = NULL;
 481         hapd->wps_probe_resp_ie_len = 0;
 482         hostapd_set_wps_probe_resp_ie(hapd, NULL, 0);
 483 }
 484
 485
 486 int hostapd_init_wps(struct hostapd_data *hapd,
 487                      struct hostapd_bss_config *conf)
 488 {
 489         struct wps_context *wps;
 490         struct wps_registrar_config cfg;
 491
 492         if (conf->wps_state == 0) {
 493                 hostapd_wps_clear_ies(hapd);
 494                 return 0;
 495         }
 496
 497         wps = os_zalloc(sizeof(*wps));
 498         if (wps == NULL)
 499                 return -1;
 500
 501         wps->cred_cb = hostapd_wps_cred_cb;
 502         wps->event_cb = hostapd_wps_event_cb;
 503         wps->cb_ctx = hapd;
 504
 505         os_memset(&cfg, 0, sizeof(cfg));
 506         wps->wps_state = hapd->conf->wps_state;
 507         wps->ap_setup_locked = hapd->conf->ap_setup_locked;
 508         if (is_nil_uuid(hapd->conf->uuid)) {
 509                 uuid_gen_mac_addr(hapd->own_addr, wps->uuid);
 510                 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC address",
 511                             wps->uuid, UUID_LEN);
 512         } else
 513                 os_memcpy(wps->uuid, hapd->conf->uuid, UUID_LEN);
 514         wps->ssid_len = hapd->conf->ssid.ssid_len;
 515         os_memcpy(wps->ssid, hapd->conf->ssid.ssid, wps->ssid_len);
 516         wps->ap = 1;
 517         os_memcpy(wps->dev.mac_addr, hapd->own_addr, ETH_ALEN);
 518         wps->dev.device_name = hapd->conf->device_name ?
 519                 os_strdup(hapd->conf->device_name) : NULL;
 520         wps->dev.manufacturer = hapd->conf->manufacturer ?
 521                 os_strdup(hapd->conf->manufacturer) : NULL;
 522         wps->dev.model_name = hapd->conf->model_name ?
 523                 os_strdup(hapd->conf->model_name) : NULL;
 524         wps->dev.model_number = hapd->conf->model_number ?
 525                 os_strdup(hapd->conf->model_number) : NULL;
 526         wps->dev.serial_number = hapd->conf->serial_number ?
 527                 os_strdup(hapd->conf->serial_number) : NULL;
 528         if (hapd->conf->config_methods) {
 529                 char *m = hapd->conf->config_methods;
 530                 if (os_strstr(m, "label"))
 531                         wps->config_methods |= WPS_CONFIG_LABEL;
 532                 if (os_strstr(m, "display"))
 533                         wps->config_methods |= WPS_CONFIG_DISPLAY;
 534                 if (os_strstr(m, "push_button"))
 535                         wps->config_methods |= WPS_CONFIG_PUSHBUTTON;
 536                 if (os_strstr(m, "keypad"))
 537                         wps->config_methods |= WPS_CONFIG_KEYPAD;
 538         }
 539         if (hapd->conf->device_type) {
 540                 char *pos;
 541                 u8 oui[4];
 542                 /* <categ>-<OUI>-<subcateg> */
 543                 wps->dev.categ = atoi(hapd->conf->device_type);
 544                 pos = os_strchr(hapd->conf->device_type, '-');
 545                 if (pos == NULL) {
 546                         wpa_printf(MSG_ERROR, "WPS: Invalid device_type");
 547                         os_free(wps);
 548                         return -1;
 549                 }
 550                 pos++;
 551                 if (hexstr2bin(pos, oui, 4)) {
 552                         wpa_printf(MSG_ERROR, "WPS: Invalid device_type OUI");
 553                         os_free(wps);
 554                         return -1;
 555                 }
 556                 wps->dev.oui = WPA_GET_BE32(oui);
 557                 pos = os_strchr(pos, '-');
 558                 if (pos == NULL) {
 559                         wpa_printf(MSG_ERROR, "WPS: Invalid device_type");
 560                         os_free(wps);
 561                         return -1;
 562                 }
 563                 pos++;
 564                 wps->dev.sub_categ = atoi(pos);
 565         }
 566         wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version);
 567         wps->dev.rf_bands = hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
 568                 WPS_RF_50GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
 569
 570         if (conf->wpa & WPA_PROTO_RSN) {
 571                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
 572                         wps->auth_types |= WPS_AUTH_WPA2PSK;
 573                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
 574                         wps->auth_types |= WPS_AUTH_WPA2;
 575
 576                 if (conf->rsn_pairwise & WPA_CIPHER_CCMP)
 577                         wps->encr_types |= WPS_ENCR_AES;
 578                 if (conf->rsn_pairwise & WPA_CIPHER_TKIP)
 579                         wps->encr_types |= WPS_ENCR_TKIP;
 580         }
 581
 582         if (conf->wpa & WPA_PROTO_WPA) {
 583                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
 584                         wps->auth_types |= WPS_AUTH_WPAPSK;
 585                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
 586                         wps->auth_types |= WPS_AUTH_WPA;
 587
 588                 if (conf->wpa_pairwise & WPA_CIPHER_CCMP)
 589                         wps->encr_types |= WPS_ENCR_AES;
 590                 if (conf->wpa_pairwise & WPA_CIPHER_TKIP)
 591                         wps->encr_types |= WPS_ENCR_TKIP;
 592         }
 593
 594         if (conf->ssid.security_policy == SECURITY_PLAINTEXT) {
 595                 wps->encr_types |= WPS_ENCR_NONE;
 596                 wps->auth_types |= WPS_AUTH_OPEN;
 597         } else if (conf->ssid.security_policy == SECURITY_STATIC_WEP) {
 598                 wps->encr_types |= WPS_ENCR_WEP;
 599                 if (conf->auth_algs & WPA_AUTH_ALG_OPEN)
 600                         wps->auth_types |= WPS_AUTH_OPEN;
 601                 if (conf->auth_algs & WPA_AUTH_ALG_SHARED)
 602                         wps->auth_types |= WPS_AUTH_SHARED;
 603         } else if (conf->ssid.security_policy == SECURITY_IEEE_802_1X) {
 604                 wps->auth_types |= WPS_AUTH_OPEN;
 605                 if (conf->default_wep_key_len)
 606                         wps->encr_types |= WPS_ENCR_WEP;
 607                 else
 608                         wps->encr_types |= WPS_ENCR_NONE;
 609         }
 610
 611         if (conf->ssid.wpa_psk_file) {
 612                 /* Use per-device PSKs */
 613         } else if (conf->ssid.wpa_passphrase) {
 614                 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase);
 615                 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase);
 616         } else if (conf->ssid.wpa_psk) {
 617                 wps->network_key = os_malloc(2 * PMK_LEN + 1);
 618                 if (wps->network_key == NULL) {
 619                         os_free(wps);
 620                         return -1;
 621                 }
 622                 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1,
 623                                  conf->ssid.wpa_psk->psk, PMK_LEN);
 624                 wps->network_key_len = 2 * PMK_LEN;
 625         } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) {
 626                 wps->network_key = os_malloc(conf->ssid.wep.len[0]);
 627                 if (wps->network_key == NULL) {
 628                         os_free(wps);
 629                         return -1;
 630                 }
 631                 os_memcpy(wps->network_key, conf->ssid.wep.key[0],
 632                           conf->ssid.wep.len[0]);
 633                 wps->network_key_len = conf->ssid.wep.len[0];
 634         }
 635
 636         if (conf->wps_state == WPS_STATE_NOT_CONFIGURED) {
 637                 /* Override parameters to enable security by default */
 638                 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
 639                 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
 640         }
 641
 642         wps->ap_settings = conf->ap_settings;
 643         wps->ap_settings_len = conf->ap_settings_len;
 644
 645         cfg.new_psk_cb = hostapd_wps_new_psk_cb;
 646         cfg.set_ie_cb = hostapd_wps_set_ie_cb;
 647         cfg.pin_needed_cb = hostapd_wps_pin_needed_cb;
 648         cfg.reg_success_cb = hostapd_wps_reg_success_cb;
 649         cfg.cb_ctx = hapd;
 650         cfg.skip_cred_build = conf->skip_cred_build;
 651         cfg.extra_cred = conf->extra_cred;
 652         cfg.extra_cred_len = conf->extra_cred_len;
 653         cfg.disable_auto_conf = (hapd->conf->wps_cred_processing == 1) &&
 654                 conf->skip_cred_build;
 655         if (conf->ssid.security_policy == SECURITY_STATIC_WEP)
 656                 cfg.static_wep_only = 1;
 657
 658         wps->registrar = wps_registrar_init(wps, &cfg);
 659         if (wps->registrar == NULL) {
 660                 printf("Failed to initialize WPS Registrar\n");
 661                 os_free(wps->network_key);
 662                 os_free(wps);
 663                 return -1;
 664         }
 665
 666 #ifdef CONFIG_WPS_UPNP
 667         wps->friendly_name = hapd->conf->friendly_name;
 668         wps->manufacturer_url = hapd->conf->manufacturer_url;
 669         wps->model_description = hapd->conf->model_description;
 670         wps->model_url = hapd->conf->model_url;
 671         wps->upc = hapd->conf->upc;
 672
 673         if (hostapd_wps_upnp_init(hapd, wps) < 0) {
 674                 wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP");
 675                 wps_registrar_deinit(wps->registrar);
 676                 os_free(wps->network_key);
 677                 os_free(wps);
 678                 return -1;
 679         }
 680 #endif /* CONFIG_WPS_UPNP */
 681
 682         hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd);
 683
 684         hapd->wps = wps;
 685
 686         return 0;
 687 }
 688
 689
 690 void hostapd_deinit_wps(struct hostapd_data *hapd)
 691 {
 692         if (hapd->wps == NULL)
 693                 return;
 694 #ifdef CONFIG_WPS_UPNP
 695         hostapd_wps_upnp_deinit(hapd);
 696 #endif /* CONFIG_WPS_UPNP */
 697         wps_registrar_deinit(hapd->wps->registrar);
 698         os_free(hapd->wps->network_key);
 699         wps_device_data_free(&hapd->wps->dev);
 700         wpabuf_free(hapd->wps->dh_pubkey);
 701         wpabuf_free(hapd->wps->dh_privkey);
 702         wpabuf_free(hapd->wps->oob_conf.pubkey_hash);
 703         wpabuf_free(hapd->wps->oob_conf.dev_password);
 704         wps_free_pending_msgs(hapd->wps->upnp_msgs);
 705         os_free(hapd->wps);
 706         hapd->wps = NULL;
 707         hostapd_wps_clear_ies(hapd);
 708 }
 709
 710
 711 int hostapd_wps_add_pin(struct hostapd_data *hapd, const char *uuid,
 712                         const char *pin, int timeout)
 713 {
 714         u8 u[UUID_LEN];
 715         int any = 0;
 716
 717         if (hapd->wps == NULL)
 718                 return -1;
 719         if (os_strcmp(uuid, "any") == 0)
 720                 any = 1;
 721         else if (uuid_str2bin(uuid, u))
 722                 return -1;
 723         return wps_registrar_add_pin(hapd->wps->registrar, any ? NULL : u,
 724                                      (const u8 *) pin, os_strlen(pin),
 725                                      timeout);
 726 }
 727
 728
 729 int hostapd_wps_button_pushed(struct hostapd_data *hapd)
 730 {
 731         if (hapd->wps == NULL)
 732                 return -1;
 733         return wps_registrar_button_pushed(hapd->wps->registrar);
 734 }
 735
 736
 737 #ifdef CONFIG_WPS_OOB
 738 int hostapd_wps_start_oob(struct hostapd_data *hapd, char *device_type,
 739                           char *path, char *method, char *name)
 740 {
 741         struct wps_context *wps = hapd->wps;
 742         struct oob_device_data *oob_dev;
 743
 744         oob_dev = wps_get_oob_device(device_type);
 745         if (oob_dev == NULL)
 746                 return -1;
 747         oob_dev->device_path = path;
 748         oob_dev->device_name = name;
 749         wps->oob_conf.oob_method = wps_get_oob_method(method);
 750
 751         if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) {
 752                 /*
 753                  * Use pre-configured DH keys in order to be able to write the
 754                  * key hash into the OOB file.
 755                  */
 756                 wpabuf_free(wps->dh_pubkey);
 757                 wpabuf_free(wps->dh_privkey);
 758                 wps->dh_privkey = NULL;
 759                 wps->dh_pubkey = dh_init(dh_groups_get(WPS_DH_GROUP),
 760                                          &wps->dh_privkey);
 761                 wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
 762                 if (wps->dh_pubkey == NULL) {
 763                         wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
 764                                    "Diffie-Hellman handshake");
 765                         return -1;
 766                 }
 767         }
 768
 769         if (wps_process_oob(wps, oob_dev, 1) < 0)
 770                 goto error;
 771
 772         if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
 773              wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
 774             hostapd_wps_add_pin(hapd, "any",
 775                                 wpabuf_head(wps->oob_conf.dev_password), 0) <
 776             0)
 777                 goto error;
 778
 779         return 0;
 780
 781 error:
 782         wpabuf_free(wps->dh_pubkey);
 783         wps->dh_pubkey = NULL;
 784         wpabuf_free(wps->dh_privkey);
 785         wps->dh_privkey = NULL;
 786         return -1;
 787 }
 788 #endif /* CONFIG_WPS_OOB */
 789
 790
 791 static void hostapd_wps_probe_req_rx(void *ctx, const u8 *addr,
 792                                      const u8 *ie, size_t ie_len)
 793 {
 794         struct hostapd_data *hapd = ctx;
 795         struct wpabuf *wps_ie;
 796         const u8 *end, *pos, *wps;
 797
 798         if (hapd->wps == NULL)
 799                 return;
 800
 801         pos = ie;
 802         end = ie + ie_len;
 803         wps = NULL;
 804
 805         while (pos + 1 < end) {
 806                 if (pos + 2 + pos[1] > end)
 807                         return;
 808                 if (pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 &&
 809                     WPA_GET_BE32(&pos[2]) == WPS_DEV_OUI_WFA) {
 810                         wps = pos;
 811                         break;
 812                 }
 813                 pos += 2 + pos[1];
 814         }
 815
 816         if (wps == NULL)
 817                 return; /* No WPS IE in Probe Request */
 818
 819         wps_ie = wpabuf_alloc(ie_len);
 820         if (wps_ie == NULL)
 821                 return;
 822
 823         /* There may be multiple WPS IEs in the message, so need to concatenate
 824          * their WPS Data fields */
 825         while (pos + 1 < end) {
 826                 if (pos + 2 + pos[1] > end)
 827                         break;
 828                 if (pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 &&
 829                     WPA_GET_BE32(&pos[2]) == WPS_DEV_OUI_WFA)
 830                         wpabuf_put_data(wps_ie, pos + 6, pos[1] - 4);
 831                 pos += 2 + pos[1];
 832         }
 833
 834         if (wpabuf_len(wps_ie) > 0) {
 835                 wps_registrar_probe_req_rx(hapd->wps->registrar, addr, wps_ie);
 836 #ifdef CONFIG_WPS_UPNP
 837                 /* FIX: what exactly should be included in the WLANEvent?
 838                  * WPS attributes? Full ProbeReq frame? */
 839                 upnp_wps_device_send_wlan_event(hapd->wps_upnp, addr,
 840                                                 UPNP_WPS_WLANEVENT_TYPE_PROBE,
 841                                                 wps_ie);
 842 #endif /* CONFIG_WPS_UPNP */
 843         }
 844
 845         wpabuf_free(wps_ie);
 846 }
 847
 848
 849 #ifdef CONFIG_WPS_UPNP
 850
 851 static struct wpabuf *
 852 hostapd_rx_req_get_device_info(void *priv, struct upnp_wps_peer *peer)
 853 {
 854         struct hostapd_data *hapd = priv;
 855         struct wps_config cfg;
 856         struct wps_data *wps;
 857         enum wsc_op_code op_code;
 858         struct wpabuf *m1;
 859
 860         /*
 861          * Request for DeviceInfo, i.e., M1 TLVs. This is a start of WPS
 862          * registration over UPnP with the AP acting as an Enrollee. It should
 863          * be noted that this is frequently used just to get the device data,
 864          * i.e., there may not be any intent to actually complete the
 865          * registration.
 866          */
 867
 868         if (peer->wps)
 869                 wps_deinit(peer->wps);
 870
 871         os_memset(&cfg, 0, sizeof(cfg));
 872         cfg.wps = hapd->wps;
 873         cfg.pin = (u8 *) hapd->conf->ap_pin;
 874         cfg.pin_len = os_strlen(hapd->conf->ap_pin);
 875         wps = wps_init(&cfg);
 876         if (wps == NULL)
 877                 return NULL;
 878
 879         m1 = wps_get_msg(wps, &op_code);
 880         if (m1 == NULL) {
 881                 wps_deinit(wps);
 882                 return NULL;
 883         }
 884
 885         peer->wps = wps;
 886
 887         return m1;
 888 }
 889
 890
 891 static struct wpabuf *
 892 hostapd_rx_req_put_message(void *priv, struct upnp_wps_peer *peer,
 893                            const struct wpabuf *msg)
 894 {
 895         enum wps_process_res res;
 896         enum wsc_op_code op_code;
 897
 898         /* PutMessage: msg = InMessage, return OutMessage */
 899         res = wps_process_msg(peer->wps, WSC_UPnP, msg);
 900         if (res == WPS_FAILURE)
 901                 return NULL;
 902         return wps_get_msg(peer->wps, &op_code);
 903 }
 904
 905
 906 static struct wpabuf *
 907 hostapd_rx_req_get_ap_settings(void *priv, const struct wpabuf *msg)
 908 {
 909         wpa_printf(MSG_DEBUG, "WPS UPnP: TODO %s", __func__);
 910         return NULL;
 911 }
 912
 913
 914 static int hostapd_rx_req_set_ap_settings(void *priv, const struct wpabuf *msg)
 915 {
 916         wpa_printf(MSG_DEBUG, "WPS UPnP: TODO %s", __func__);
 917         return -1;
 918 }
 919
 920
 921 static int hostapd_rx_req_del_ap_settings(void *priv, const struct wpabuf *msg)
 922 {
 923         wpa_printf(MSG_DEBUG, "WPS UPnP: TODO %s", __func__);
 924         return -1;
 925 }
 926
 927
 928 static struct wpabuf *
 929 hostapd_rx_req_get_sta_settings(void *priv, const struct wpabuf *msg)
 930 {
 931         wpa_printf(MSG_DEBUG, "WPS UPnP: TODO %s", __func__);
 932         return NULL;
 933 }
 934
 935
 936 static int hostapd_rx_req_set_sta_settings(void *priv,
 937                                            const struct wpabuf *msg)
 938 {
 939         wpa_printf(MSG_DEBUG, "WPS UPnP: TODO %s", __func__);
 940         return -1;
 941 }
 942
 943
 944 static int hostapd_rx_req_del_sta_settings(void *priv,
 945                                            const struct wpabuf *msg)
 946 {
 947         wpa_printf(MSG_DEBUG, "WPS UPnP: TODO %s", __func__);
 948         return -1;
 949 }
 950
 951
 952 static int hostapd_rx_req_put_wlan_response(
 953         void *priv, enum upnp_wps_wlanevent_type ev_type,
 954         const u8 *mac_addr, const struct wpabuf *msg,
 955         enum wps_msg_type msg_type)
 956 {
 957         struct hostapd_data *hapd = priv;
 958         struct sta_info *sta;
 959         struct upnp_pending_message *p;
 960
 961         wpa_printf(MSG_DEBUG, "WPS UPnP: PutWLANResponse ev_type=%d mac_addr="
 962                    MACSTR, ev_type, MAC2STR(mac_addr));
 963         wpa_hexdump_ascii(MSG_MSGDUMP, "WPS UPnP: PutWLANResponse NewMessage",
 964                           wpabuf_head(msg), wpabuf_len(msg));
 965         if (ev_type != UPNP_WPS_WLANEVENT_TYPE_EAP) {
 966                 wpa_printf(MSG_DEBUG, "WPS UPnP: Ignored unexpected "
 967                            "PutWLANResponse WLANEventType %d", ev_type);
 968                 return -1;
 969         }
 970
 971         /*
 972          * EAP response to ongoing to WPS Registration. Send it to EAP-WSC
 973          * server implementation for delivery to the peer.
 974          */
 975
 976         sta = ap_get_sta(hapd, mac_addr);
 977         if (!sta) {
 978                 /*
 979                  * Workaround - Intel wsccmd uses bogus NewWLANEventMAC:
 980                  * Pick STA that is in an ongoing WPS registration without
 981                  * checking the MAC address.
 982                  */
 983                 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found based "
 984                            "on NewWLANEventMAC; try wildcard match");
 985                 for (sta = hapd->sta_list; sta; sta = sta->next) {
 986                         if (sta->eapol_sm && (sta->flags & WLAN_STA_WPS))
 987                                 break;
 988                 }
 989         }
 990
 991         if (!sta) {
 992                 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found");
 993                 return 0;
 994         }
 995
 996         p = os_zalloc(sizeof(*p));
 997         if (p == NULL)
 998                 return -1;
 999         os_memcpy(p->addr, sta->addr, ETH_ALEN);
1000         p->msg = wpabuf_dup(msg);
1001         p->type = msg_type;
1002         p->next = hapd->wps->upnp_msgs;
1003         hapd->wps->upnp_msgs = p;
1004
1005         return eapol_auth_eap_pending_cb(sta->eapol_sm, sta->eapol_sm->eap);
1006 }
1007
1008
1009 static int hostapd_rx_req_set_selected_registrar(void *priv,
1010                                                  const struct wpabuf *msg)
1011 {
1012         struct hostapd_data *hapd = priv;
1013         return wps_registrar_set_selected_registrar(hapd->wps->registrar, msg);
1014 }
1015
1016
1017 static int hostapd_rx_req_reboot_ap(void *priv, const struct wpabuf *msg)
1018 {
1019         wpa_printf(MSG_DEBUG, "WPS UPnP: TODO %s", __func__);
1020         return -1;
1021 }
1022
1023
1024 static int hostapd_rx_req_reset_ap(void *priv, const struct wpabuf *msg)
1025 {
1026         wpa_printf(MSG_DEBUG, "WPS UPnP: TODO %s", __func__);
1027         return -1;
1028 }
1029
1030
1031 static int hostapd_rx_req_reboot_sta(void *priv, const struct wpabuf *msg)
1032 {
1033         wpa_printf(MSG_DEBUG, "WPS UPnP: TODO %s", __func__);
1034         return -1;
1035 }
1036
1037
1038 static int hostapd_rx_req_reset_sta(void *priv, const struct wpabuf *msg)
1039 {
1040         wpa_printf(MSG_DEBUG, "WPS UPnP: TODO %s", __func__);
1041         return -1;
1042 }
1043
1044
1045 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
1046                                  struct wps_context *wps)
1047 {
1048         struct upnp_wps_device_ctx *ctx;
1049
1050         if (!hapd->conf->upnp_iface)
1051                 return 0;
1052         ctx = os_zalloc(sizeof(*ctx));
1053         if (ctx == NULL)
1054                 return -1;
1055
1056         ctx->rx_req_get_device_info = hostapd_rx_req_get_device_info;
1057         ctx->rx_req_put_message = hostapd_rx_req_put_message;
1058         ctx->rx_req_get_ap_settings = hostapd_rx_req_get_ap_settings;
1059         ctx->rx_req_set_ap_settings = hostapd_rx_req_set_ap_settings;
1060         ctx->rx_req_del_ap_settings = hostapd_rx_req_del_ap_settings;
1061         ctx->rx_req_get_sta_settings = hostapd_rx_req_get_sta_settings;
1062         ctx->rx_req_set_sta_settings = hostapd_rx_req_set_sta_settings;
1063         ctx->rx_req_del_sta_settings = hostapd_rx_req_del_sta_settings;
1064         ctx->rx_req_put_wlan_response = hostapd_rx_req_put_wlan_response;
1065         ctx->rx_req_set_selected_registrar =
1066                 hostapd_rx_req_set_selected_registrar;
1067         ctx->rx_req_reboot_ap = hostapd_rx_req_reboot_ap;
1068         ctx->rx_req_reset_ap = hostapd_rx_req_reset_ap;
1069         ctx->rx_req_reboot_sta = hostapd_rx_req_reboot_sta;
1070         ctx->rx_req_reset_sta = hostapd_rx_req_reset_sta;
1071
1072         hapd->wps_upnp = upnp_wps_device_init(ctx, wps, hapd);
1073         if (hapd->wps_upnp == NULL) {
1074                 os_free(ctx);
1075                 return -1;
1076         }
1077         wps->wps_upnp = hapd->wps_upnp;
1078
1079         if (upnp_wps_device_start(hapd->wps_upnp, hapd->conf->upnp_iface)) {
1080                 upnp_wps_device_deinit(hapd->wps_upnp);
1081                 hapd->wps_upnp = NULL;
1082                 return -1;
1083         }
1084
1085         return 0;
1086 }
1087
1088
1089 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd)
1090 {
1091         upnp_wps_device_deinit(hapd->wps_upnp);
1092 }
1093
1094 #endif /* CONFIG_WPS_UPNP */