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