contrib/hostapd/src/ap/wps_hostapd.c

   1 /*
   2  * hostapd / WPS integration
   3  * Copyright (c) 2008-2012, Jouni Malinen <j@w1.fi>
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "utils/includes.h"
  10
  11 #include "utils/common.h"
  12 #include "utils/eloop.h"
  13 #include "utils/uuid.h"
  14 #include "common/wpa_ctrl.h"
  15 #include "common/ieee802_11_defs.h"
  16 #include "common/ieee802_11_common.h"
  17 #include "eapol_auth/eapol_auth_sm.h"
  18 #include "eapol_auth/eapol_auth_sm_i.h"
  19 #include "wps/wps.h"
  20 #include "wps/wps_defs.h"
  21 #include "wps/wps_dev_attr.h"
  22 #include "wps/wps_attr_parse.h"
  23 #include "hostapd.h"
  24 #include "ap_config.h"
  25 #include "ap_drv_ops.h"
  26 #include "beacon.h"
  27 #include "sta_info.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 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, const u8 *da,
  39                                     const u8 *bssid,
  40                                     const u8 *ie, size_t ie_len,
  41                                     int ssi_signal);
  42 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx);
  43
  44
  45 struct wps_for_each_data {
  46         int (*func)(struct hostapd_data *h, void *ctx);
  47         void *ctx;
  48         struct hostapd_data *calling_hapd;
  49 };
  50
  51
  52 static int wps_for_each(struct hostapd_iface *iface, void *ctx)
  53 {
  54         struct wps_for_each_data *data = ctx;
  55         size_t j;
  56
  57         if (iface == NULL)
  58                 return 0;
  59         for (j = 0; j < iface->num_bss; j++) {
  60                 struct hostapd_data *hapd = iface->bss[j];
  61                 int ret;
  62
  63                 if (hapd != data->calling_hapd &&
  64                     (hapd->conf->wps_independent ||
  65                      data->calling_hapd->conf->wps_independent))
  66                         continue;
  67
  68                 ret = data->func(hapd, data->ctx);
  69                 if (ret)
  70                         return ret;
  71         }
  72
  73         return 0;
  74 }
  75
  76
  77 static int hostapd_wps_for_each(struct hostapd_data *hapd,
  78                                 int (*func)(struct hostapd_data *h, void *ctx),
  79                                 void *ctx)
  80 {
  81         struct hostapd_iface *iface = hapd->iface;
  82         struct wps_for_each_data data;
  83         data.func = func;
  84         data.ctx = ctx;
  85         data.calling_hapd = hapd;
  86         if (iface->interfaces == NULL ||
  87             iface->interfaces->for_each_interface == NULL)
  88                 return wps_for_each(iface, &data);
  89         return iface->interfaces->for_each_interface(iface->interfaces,
  90                                                      wps_for_each, &data);
  91 }
  92
  93
  94 static int hostapd_wps_new_psk_cb(void *ctx, const u8 *mac_addr,
  95                                   const u8 *p2p_dev_addr, const u8 *psk,
  96                                   size_t psk_len)
  97 {
  98         struct hostapd_data *hapd = ctx;
  99         struct hostapd_wpa_psk *p;
 100         struct hostapd_ssid *ssid = &hapd->conf->ssid;
 101
 102         if (is_zero_ether_addr(p2p_dev_addr)) {
 103                 wpa_printf(MSG_DEBUG,
 104                            "Received new WPA/WPA2-PSK from WPS for STA " MACSTR,
 105                            MAC2STR(mac_addr));
 106         } else {
 107                 wpa_printf(MSG_DEBUG,
 108                            "Received new WPA/WPA2-PSK from WPS for STA " MACSTR
 109                            " P2P Device Addr " MACSTR,
 110                            MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
 111         }
 112         wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
 113
 114         if (psk_len != PMK_LEN) {
 115                 wpa_printf(MSG_DEBUG, "Unexpected PSK length %lu",
 116                            (unsigned long) psk_len);
 117                 return -1;
 118         }
 119
 120         /* Add the new PSK to runtime PSK list */
 121         p = os_zalloc(sizeof(*p));
 122         if (p == NULL)
 123                 return -1;
 124         os_memcpy(p->addr, mac_addr, ETH_ALEN);
 125         os_memcpy(p->p2p_dev_addr, p2p_dev_addr, ETH_ALEN);
 126         os_memcpy(p->psk, psk, PMK_LEN);
 127
 128         if (hapd->new_psk_cb) {
 129                 hapd->new_psk_cb(hapd->new_psk_cb_ctx, mac_addr, p2p_dev_addr,
 130                                  psk, psk_len);
 131         }
 132
 133         p->next = ssid->wpa_psk;
 134         ssid->wpa_psk = p;
 135
 136         if (ssid->wpa_psk_file) {
 137                 FILE *f;
 138                 char hex[PMK_LEN * 2 + 1];
 139                 /* Add the new PSK to PSK list file */
 140                 f = fopen(ssid->wpa_psk_file, "a");
 141                 if (f == NULL) {
 142                         wpa_printf(MSG_DEBUG, "Failed to add the PSK to "
 143                                    "'%s'", ssid->wpa_psk_file);
 144                         return -1;
 145                 }
 146
 147                 wpa_snprintf_hex(hex, sizeof(hex), psk, psk_len);
 148                 fprintf(f, MACSTR " %s\n", MAC2STR(mac_addr), hex);
 149                 fclose(f);
 150         }
 151
 152         return 0;
 153 }
 154
 155
 156 static int hostapd_wps_set_ie_cb(void *ctx, struct wpabuf *beacon_ie,
 157                                  struct wpabuf *probe_resp_ie)
 158 {
 159         struct hostapd_data *hapd = ctx;
 160         wpabuf_free(hapd->wps_beacon_ie);
 161         hapd->wps_beacon_ie = beacon_ie;
 162         wpabuf_free(hapd->wps_probe_resp_ie);
 163         hapd->wps_probe_resp_ie = probe_resp_ie;
 164         if (hapd->beacon_set_done)
 165                 ieee802_11_set_beacon(hapd);
 166         return hostapd_set_ap_wps_ie(hapd);
 167 }
 168
 169
 170 static void hostapd_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
 171                                       const struct wps_device_data *dev)
 172 {
 173         struct hostapd_data *hapd = ctx;
 174         char uuid[40], txt[400];
 175         int len;
 176         char devtype[WPS_DEV_TYPE_BUFSIZE];
 177         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 178                 return;
 179         wpa_printf(MSG_DEBUG, "WPS: PIN needed for E-UUID %s", uuid);
 180         len = os_snprintf(txt, sizeof(txt), WPS_EVENT_PIN_NEEDED
 181                           "%s " MACSTR " [%s|%s|%s|%s|%s|%s]",
 182                           uuid, MAC2STR(dev->mac_addr), dev->device_name,
 183                           dev->manufacturer, dev->model_name,
 184                           dev->model_number, dev->serial_number,
 185                           wps_dev_type_bin2str(dev->pri_dev_type, devtype,
 186                                                sizeof(devtype)));
 187         if (len > 0 && len < (int) sizeof(txt))
 188                 wpa_msg(hapd->msg_ctx, MSG_INFO, "%s", txt);
 189
 190         if (hapd->conf->wps_pin_requests) {
 191                 FILE *f;
 192                 struct os_time t;
 193                 f = fopen(hapd->conf->wps_pin_requests, "a");
 194                 if (f == NULL)
 195                         return;
 196                 os_get_time(&t);
 197                 fprintf(f, "%ld\t%s\t" MACSTR "\t%s\t%s\t%s\t%s\t%s"
 198                         "\t%s\n",
 199                         t.sec, uuid, MAC2STR(dev->mac_addr), dev->device_name,
 200                         dev->manufacturer, dev->model_name, dev->model_number,
 201                         dev->serial_number,
 202                         wps_dev_type_bin2str(dev->pri_dev_type, devtype,
 203                                              sizeof(devtype)));
 204                 fclose(f);
 205         }
 206 }
 207
 208
 209 struct wps_stop_reg_data {
 210         struct hostapd_data *current_hapd;
 211         const u8 *uuid_e;
 212         const u8 *dev_pw;
 213         size_t dev_pw_len;
 214 };
 215
 216 static int wps_stop_registrar(struct hostapd_data *hapd, void *ctx)
 217 {
 218         struct wps_stop_reg_data *data = ctx;
 219         if (hapd != data->current_hapd && hapd->wps != NULL)
 220                 wps_registrar_complete(hapd->wps->registrar, data->uuid_e,
 221                                        data->dev_pw, data->dev_pw_len);
 222         return 0;
 223 }
 224
 225
 226 static void hostapd_wps_reg_success_cb(void *ctx, const u8 *mac_addr,
 227                                        const u8 *uuid_e, const u8 *dev_pw,
 228                                        size_t dev_pw_len)
 229 {
 230         struct hostapd_data *hapd = ctx;
 231         char uuid[40];
 232         struct wps_stop_reg_data data;
 233         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 234                 return;
 235         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_REG_SUCCESS MACSTR " %s",
 236                 MAC2STR(mac_addr), uuid);
 237         if (hapd->wps_reg_success_cb)
 238                 hapd->wps_reg_success_cb(hapd->wps_reg_success_cb_ctx,
 239                                          mac_addr, uuid_e);
 240         data.current_hapd = hapd;
 241         data.uuid_e = uuid_e;
 242         data.dev_pw = dev_pw;
 243         data.dev_pw_len = dev_pw_len;
 244         hostapd_wps_for_each(hapd, wps_stop_registrar, &data);
 245 }
 246
 247
 248 static void hostapd_wps_enrollee_seen_cb(void *ctx, const u8 *addr,
 249                                          const u8 *uuid_e,
 250                                          const u8 *pri_dev_type,
 251                                          u16 config_methods,
 252                                          u16 dev_password_id, u8 request_type,
 253                                          const char *dev_name)
 254 {
 255         struct hostapd_data *hapd = ctx;
 256         char uuid[40];
 257         char devtype[WPS_DEV_TYPE_BUFSIZE];
 258         if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
 259                 return;
 260         if (dev_name == NULL)
 261                 dev_name = "";
 262         wpa_msg_ctrl(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ENROLLEE_SEEN MACSTR
 263                      " %s %s 0x%x %u %u [%s]",
 264                      MAC2STR(addr), uuid,
 265                      wps_dev_type_bin2str(pri_dev_type, devtype,
 266                                           sizeof(devtype)),
 267                      config_methods, dev_password_id, request_type, dev_name);
 268 }
 269
 270
 271 static int str_starts(const char *str, const char *start)
 272 {
 273         return os_strncmp(str, start, os_strlen(start)) == 0;
 274 }
 275
 276
 277 static void wps_reload_config(void *eloop_data, void *user_ctx)
 278 {
 279         struct hostapd_iface *iface = eloop_data;
 280
 281         wpa_printf(MSG_DEBUG, "WPS: Reload configuration data");
 282         if (iface->interfaces == NULL ||
 283             iface->interfaces->reload_config(iface) < 0) {
 284                 wpa_printf(MSG_WARNING, "WPS: Failed to reload the updated "
 285                            "configuration");
 286         }
 287 }
 288
 289
 290 void hostapd_wps_eap_completed(struct hostapd_data *hapd)
 291 {
 292         /*
 293          * Reduce race condition of the station trying to reconnect immediately
 294          * after AP reconfiguration through WPS by rescheduling the reload
 295          * timeout to happen after EAP completion rather than the originally
 296          * scheduled 100 ms after new configuration became known.
 297          */
 298         if (eloop_deplete_timeout(0, 0, wps_reload_config, hapd->iface, NULL) ==
 299             1)
 300                 wpa_printf(MSG_DEBUG, "WPS: Reschedule immediate configuration reload");
 301 }
 302
 303
 304 static void hapd_new_ap_event(struct hostapd_data *hapd, const u8 *attr,
 305                               size_t attr_len)
 306 {
 307         size_t blen = attr_len * 2 + 1;
 308         char *buf = os_malloc(blen);
 309         if (buf) {
 310                 wpa_snprintf_hex(buf, blen, attr, attr_len);
 311                 wpa_msg(hapd->msg_ctx, MSG_INFO,
 312                         WPS_EVENT_NEW_AP_SETTINGS "%s", buf);
 313                 os_free(buf);
 314         }
 315 }
 316
 317
 318 static int hapd_wps_reconfig_in_memory(struct hostapd_data *hapd,
 319                                        const struct wps_credential *cred)
 320 {
 321         struct hostapd_bss_config *bss = hapd->conf;
 322
 323         wpa_printf(MSG_DEBUG, "WPS: Updating in-memory configuration");
 324
 325         bss->wps_state = 2;
 326         if (cred->ssid_len <= HOSTAPD_MAX_SSID_LEN) {
 327                 os_memcpy(bss->ssid.ssid, cred->ssid, cred->ssid_len);
 328                 bss->ssid.ssid_len = cred->ssid_len;
 329                 bss->ssid.ssid_set = 1;
 330         }
 331
 332         if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
 333             (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
 334                 bss->wpa = 3;
 335         else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
 336                 bss->wpa = 2;
 337         else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
 338                 bss->wpa = 1;
 339         else
 340                 bss->wpa = 0;
 341
 342         if (bss->wpa) {
 343                 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA))
 344                         bss->wpa_key_mgmt = WPA_KEY_MGMT_IEEE8021X;
 345                 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK))
 346                         bss->wpa_key_mgmt = WPA_KEY_MGMT_PSK;
 347
 348                 bss->wpa_pairwise = 0;
 349                 if (cred->encr_type & WPS_ENCR_AES)
 350                         bss->wpa_pairwise |= WPA_CIPHER_CCMP;
 351                 if (cred->encr_type & WPS_ENCR_TKIP)
 352                         bss->wpa_pairwise |= WPA_CIPHER_TKIP;
 353                 bss->rsn_pairwise = bss->wpa_pairwise;
 354                 bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa,
 355                                                             bss->wpa_pairwise,
 356                                                             bss->rsn_pairwise);
 357
 358                 if (cred->key_len >= 8 && cred->key_len < 64) {
 359                         os_free(bss->ssid.wpa_passphrase);
 360                         bss->ssid.wpa_passphrase = os_zalloc(cred->key_len + 1);
 361                         if (bss->ssid.wpa_passphrase)
 362                                 os_memcpy(bss->ssid.wpa_passphrase, cred->key,
 363                                           cred->key_len);
 364                         os_free(bss->ssid.wpa_psk);
 365                         bss->ssid.wpa_psk = NULL;
 366                 } else if (cred->key_len == 64) {
 367                         os_free(bss->ssid.wpa_psk);
 368                         bss->ssid.wpa_psk =
 369                                 os_zalloc(sizeof(struct hostapd_wpa_psk));
 370                         if (bss->ssid.wpa_psk &&
 371                             hexstr2bin((const char *) cred->key,
 372                                        bss->ssid.wpa_psk->psk, PMK_LEN) == 0) {
 373                                 bss->ssid.wpa_psk->group = 1;
 374                                 os_free(bss->ssid.wpa_passphrase);
 375                                 bss->ssid.wpa_passphrase = NULL;
 376                         }
 377                 }
 378                 bss->auth_algs = 1;
 379         } else {
 380                 if ((cred->auth_type & WPS_AUTH_OPEN) &&
 381                     (cred->auth_type & WPS_AUTH_SHARED))
 382                         bss->auth_algs = 3;
 383                 else if (cred->auth_type & WPS_AUTH_SHARED)
 384                         bss->auth_algs = 2;
 385                 else
 386                         bss->auth_algs = 1;
 387                 if (cred->encr_type & WPS_ENCR_WEP && cred->key_idx > 0 &&
 388                     cred->key_idx <= 4) {
 389                         struct hostapd_wep_keys *wep = &bss->ssid.wep;
 390                         int idx = cred->key_idx;
 391                         if (idx)
 392                                 idx--;
 393                         wep->idx = idx;
 394                         if (cred->key_len == 10 || cred->key_len == 26) {
 395                                 os_free(wep->key[idx]);
 396                                 wep->key[idx] = os_malloc(cred->key_len / 2);
 397                                 if (wep->key[idx] == NULL ||
 398                                     hexstr2bin((const char *) cred->key,
 399                                                wep->key[idx],
 400                                                cred->key_len / 2))
 401                                         return -1;
 402                                 wep->len[idx] = cred->key_len / 2;
 403                         } else {
 404                                 os_free(wep->key[idx]);
 405                                 wep->key[idx] = os_malloc(cred->key_len);
 406                                 if (wep->key[idx] == NULL)
 407                                         return -1;
 408                                 os_memcpy(wep->key[idx], cred->key,
 409                                           cred->key_len);
 410                                 wep->len[idx] = cred->key_len;
 411                         }
 412                         wep->keys_set = 1;
 413                 }
 414         }
 415
 416         /* Schedule configuration reload after short period of time to allow
 417          * EAP-WSC to be finished.
 418          */
 419         eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface,
 420                                NULL);
 421
 422         return 0;
 423 }
 424
 425
 426 static int hapd_wps_cred_cb(struct hostapd_data *hapd, void *ctx)
 427 {
 428         const struct wps_credential *cred = ctx;
 429         FILE *oconf, *nconf;
 430         size_t len, i;
 431         char *tmp_fname;
 432         char buf[1024];
 433         int multi_bss;
 434         int wpa;
 435
 436         if (hapd->wps == NULL)
 437                 return 0;
 438
 439         wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
 440                         cred->cred_attr, cred->cred_attr_len);
 441
 442         wpa_printf(MSG_DEBUG, "WPS: Received new AP Settings");
 443         wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
 444         wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
 445                    cred->auth_type);
 446         wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
 447         wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
 448         wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
 449                         cred->key, cred->key_len);
 450         wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
 451                    MAC2STR(cred->mac_addr));
 452
 453         if ((hapd->conf->wps_cred_processing == 1 ||
 454              hapd->conf->wps_cred_processing == 2) && cred->cred_attr) {
 455                 hapd_new_ap_event(hapd, cred->cred_attr, cred->cred_attr_len);
 456         } else if (hapd->conf->wps_cred_processing == 1 ||
 457                    hapd->conf->wps_cred_processing == 2) {
 458                 struct wpabuf *attr;
 459                 attr = wpabuf_alloc(200);
 460                 if (attr && wps_build_credential_wrap(attr, cred) == 0)
 461                         hapd_new_ap_event(hapd, wpabuf_head_u8(attr),
 462                                           wpabuf_len(attr));
 463                 wpabuf_free(attr);
 464         } else
 465                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_NEW_AP_SETTINGS);
 466
 467         if (hapd->conf->wps_cred_processing == 1)
 468                 return 0;
 469
 470         os_memcpy(hapd->wps->ssid, cred->ssid, cred->ssid_len);
 471         hapd->wps->ssid_len = cred->ssid_len;
 472         hapd->wps->encr_types = cred->encr_type;
 473         hapd->wps->auth_types = cred->auth_type;
 474         if (cred->key_len == 0) {
 475                 os_free(hapd->wps->network_key);
 476                 hapd->wps->network_key = NULL;
 477                 hapd->wps->network_key_len = 0;
 478         } else {
 479                 if (hapd->wps->network_key == NULL ||
 480                     hapd->wps->network_key_len < cred->key_len) {
 481                         hapd->wps->network_key_len = 0;
 482                         os_free(hapd->wps->network_key);
 483                         hapd->wps->network_key = os_malloc(cred->key_len);
 484                         if (hapd->wps->network_key == NULL)
 485                                 return -1;
 486                 }
 487                 hapd->wps->network_key_len = cred->key_len;
 488                 os_memcpy(hapd->wps->network_key, cred->key, cred->key_len);
 489         }
 490         hapd->wps->wps_state = WPS_STATE_CONFIGURED;
 491
 492         if (hapd->iface->config_fname == NULL)
 493                 return hapd_wps_reconfig_in_memory(hapd, cred);
 494         len = os_strlen(hapd->iface->config_fname) + 5;
 495         tmp_fname = os_malloc(len);
 496         if (tmp_fname == NULL)
 497                 return -1;
 498         os_snprintf(tmp_fname, len, "%s-new", hapd->iface->config_fname);
 499
 500         oconf = fopen(hapd->iface->config_fname, "r");
 501         if (oconf == NULL) {
 502                 wpa_printf(MSG_WARNING, "WPS: Could not open current "
 503                            "configuration file");
 504                 os_free(tmp_fname);
 505                 return -1;
 506         }
 507
 508         nconf = fopen(tmp_fname, "w");
 509         if (nconf == NULL) {
 510                 wpa_printf(MSG_WARNING, "WPS: Could not write updated "
 511                            "configuration file");
 512                 os_free(tmp_fname);
 513                 fclose(oconf);
 514                 return -1;
 515         }
 516
 517         fprintf(nconf, "# WPS configuration - START\n");
 518
 519         fprintf(nconf, "wps_state=2\n");
 520
 521         if (is_hex(cred->ssid, cred->ssid_len)) {
 522                 fprintf(nconf, "ssid2=");
 523                 for (i = 0; i < cred->ssid_len; i++)
 524                         fprintf(nconf, "%02x", cred->ssid[i]);
 525                 fprintf(nconf, "\n");
 526         } else {
 527                 fprintf(nconf, "ssid=");
 528                 for (i = 0; i < cred->ssid_len; i++)
 529                         fputc(cred->ssid[i], nconf);
 530                 fprintf(nconf, "\n");
 531         }
 532
 533         if ((cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK)) &&
 534             (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK)))
 535                 wpa = 3;
 536         else if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA2PSK))
 537                 wpa = 2;
 538         else if (cred->auth_type & (WPS_AUTH_WPA | WPS_AUTH_WPAPSK))
 539                 wpa = 1;
 540         else
 541                 wpa = 0;
 542
 543         if (wpa) {
 544                 char *prefix;
 545                 fprintf(nconf, "wpa=%d\n", wpa);
 546
 547                 fprintf(nconf, "wpa_key_mgmt=");
 548                 prefix = "";
 549                 if (cred->auth_type & (WPS_AUTH_WPA2 | WPS_AUTH_WPA)) {
 550                         fprintf(nconf, "WPA-EAP");
 551                         prefix = " ";
 552                 }
 553                 if (cred->auth_type & (WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK))
 554                         fprintf(nconf, "%sWPA-PSK", prefix);
 555                 fprintf(nconf, "\n");
 556
 557                 fprintf(nconf, "wpa_pairwise=");
 558                 prefix = "";
 559                 if (cred->encr_type & WPS_ENCR_AES) {
 560                         fprintf(nconf, "CCMP");
 561                         prefix = " ";
 562                 }
 563                 if (cred->encr_type & WPS_ENCR_TKIP) {
 564                         fprintf(nconf, "%sTKIP", prefix);
 565                 }
 566                 fprintf(nconf, "\n");
 567
 568                 if (cred->key_len >= 8 && cred->key_len < 64) {
 569                         fprintf(nconf, "wpa_passphrase=");
 570                         for (i = 0; i < cred->key_len; i++)
 571                                 fputc(cred->key[i], nconf);
 572                         fprintf(nconf, "\n");
 573                 } else if (cred->key_len == 64) {
 574                         fprintf(nconf, "wpa_psk=");
 575                         for (i = 0; i < cred->key_len; i++)
 576                                 fputc(cred->key[i], nconf);
 577                         fprintf(nconf, "\n");
 578                 } else {
 579                         wpa_printf(MSG_WARNING, "WPS: Invalid key length %lu "
 580                                    "for WPA/WPA2",
 581                                    (unsigned long) cred->key_len);
 582                 }
 583
 584                 fprintf(nconf, "auth_algs=1\n");
 585         } else {
 586                 if ((cred->auth_type & WPS_AUTH_OPEN) &&
 587                     (cred->auth_type & WPS_AUTH_SHARED))
 588                         fprintf(nconf, "auth_algs=3\n");
 589                 else if (cred->auth_type & WPS_AUTH_SHARED)
 590                         fprintf(nconf, "auth_algs=2\n");
 591                 else
 592                         fprintf(nconf, "auth_algs=1\n");
 593
 594                 if (cred->encr_type & WPS_ENCR_WEP && cred->key_idx <= 4) {
 595                         int key_idx = cred->key_idx;
 596                         if (key_idx)
 597                                 key_idx--;
 598                         fprintf(nconf, "wep_default_key=%d\n", key_idx);
 599                         fprintf(nconf, "wep_key%d=", key_idx);
 600                         if (cred->key_len == 10 || cred->key_len == 26) {
 601                                 /* WEP key as a hex string */
 602                                 for (i = 0; i < cred->key_len; i++)
 603                                         fputc(cred->key[i], nconf);
 604                         } else {
 605                                 /* Raw WEP key; convert to hex */
 606                                 for (i = 0; i < cred->key_len; i++)
 607                                         fprintf(nconf, "%02x", cred->key[i]);
 608                         }
 609                         fprintf(nconf, "\n");
 610                 }
 611         }
 612
 613         fprintf(nconf, "# WPS configuration - END\n");
 614
 615         multi_bss = 0;
 616         while (fgets(buf, sizeof(buf), oconf)) {
 617                 if (os_strncmp(buf, "bss=", 4) == 0)
 618                         multi_bss = 1;
 619                 if (!multi_bss &&
 620                     (str_starts(buf, "ssid=") ||
 621                      str_starts(buf, "ssid2=") ||
 622                      str_starts(buf, "auth_algs=") ||
 623                      str_starts(buf, "wep_default_key=") ||
 624                      str_starts(buf, "wep_key") ||
 625                      str_starts(buf, "wps_state=") ||
 626                      str_starts(buf, "wpa=") ||
 627                      str_starts(buf, "wpa_psk=") ||
 628                      str_starts(buf, "wpa_pairwise=") ||
 629                      str_starts(buf, "rsn_pairwise=") ||
 630                      str_starts(buf, "wpa_key_mgmt=") ||
 631                      str_starts(buf, "wpa_passphrase="))) {
 632                         fprintf(nconf, "#WPS# %s", buf);
 633                 } else
 634                         fprintf(nconf, "%s", buf);
 635         }
 636
 637         fclose(nconf);
 638         fclose(oconf);
 639
 640         if (rename(tmp_fname, hapd->iface->config_fname) < 0) {
 641                 wpa_printf(MSG_WARNING, "WPS: Failed to rename the updated "
 642                            "configuration file: %s", strerror(errno));
 643                 os_free(tmp_fname);
 644                 return -1;
 645         }
 646
 647         os_free(tmp_fname);
 648
 649         /* Schedule configuration reload after short period of time to allow
 650          * EAP-WSC to be finished.
 651          */
 652         eloop_register_timeout(0, 100000, wps_reload_config, hapd->iface,
 653                                NULL);
 654
 655         wpa_printf(MSG_DEBUG, "WPS: AP configuration updated");
 656
 657         return 0;
 658 }
 659
 660
 661 static int hostapd_wps_cred_cb(void *ctx, const struct wps_credential *cred)
 662 {
 663         struct hostapd_data *hapd = ctx;
 664         return hostapd_wps_for_each(hapd, hapd_wps_cred_cb, (void *) cred);
 665 }
 666
 667
 668 static void hostapd_wps_reenable_ap_pin(void *eloop_data, void *user_ctx)
 669 {
 670         struct hostapd_data *hapd = eloop_data;
 671
 672         if (hapd->conf->ap_setup_locked)
 673                 return;
 674         if (hapd->ap_pin_failures_consecutive >= 10)
 675                 return;
 676
 677         wpa_printf(MSG_DEBUG, "WPS: Re-enable AP PIN");
 678         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
 679         hapd->wps->ap_setup_locked = 0;
 680         wps_registrar_update_ie(hapd->wps->registrar);
 681 }
 682
 683
 684 static int wps_pwd_auth_fail(struct hostapd_data *hapd, void *ctx)
 685 {
 686         struct wps_event_pwd_auth_fail *data = ctx;
 687
 688         if (!data->enrollee || hapd->conf->ap_pin == NULL || hapd->wps == NULL)
 689                 return 0;
 690
 691         /*
 692          * Registrar failed to prove its knowledge of the AP PIN. Lock AP setup
 693          * for some time if this happens multiple times to slow down brute
 694          * force attacks.
 695          */
 696         hapd->ap_pin_failures++;
 697         hapd->ap_pin_failures_consecutive++;
 698         wpa_printf(MSG_DEBUG, "WPS: AP PIN authentication failure number %u "
 699                    "(%u consecutive)",
 700                    hapd->ap_pin_failures, hapd->ap_pin_failures_consecutive);
 701         if (hapd->ap_pin_failures < 3)
 702                 return 0;
 703
 704         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_LOCKED);
 705         hapd->wps->ap_setup_locked = 1;
 706
 707         wps_registrar_update_ie(hapd->wps->registrar);
 708
 709         if (!hapd->conf->ap_setup_locked &&
 710             hapd->ap_pin_failures_consecutive >= 10) {
 711                 /*
 712                  * In indefinite lockdown - disable automatic AP PIN
 713                  * reenablement.
 714                  */
 715                 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
 716                 wpa_printf(MSG_DEBUG, "WPS: AP PIN disabled indefinitely");
 717         } else if (!hapd->conf->ap_setup_locked) {
 718                 if (hapd->ap_pin_lockout_time == 0)
 719                         hapd->ap_pin_lockout_time = 60;
 720                 else if (hapd->ap_pin_lockout_time < 365 * 24 * 60 * 60 &&
 721                          (hapd->ap_pin_failures % 3) == 0)
 722                         hapd->ap_pin_lockout_time *= 2;
 723
 724                 wpa_printf(MSG_DEBUG, "WPS: Disable AP PIN for %u seconds",
 725                            hapd->ap_pin_lockout_time);
 726                 eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
 727                 eloop_register_timeout(hapd->ap_pin_lockout_time, 0,
 728                                        hostapd_wps_reenable_ap_pin, hapd,
 729                                        NULL);
 730         }
 731
 732         return 0;
 733 }
 734
 735
 736 static void hostapd_pwd_auth_fail(struct hostapd_data *hapd,
 737                                   struct wps_event_pwd_auth_fail *data)
 738 {
 739         /* Update WPS Status - Authentication Failure */
 740         wpa_printf(MSG_DEBUG, "WPS: Authentication failure update");
 741         hapd->wps_stats.status = WPS_STATUS_FAILURE;
 742         hapd->wps_stats.failure_reason = WPS_EI_AUTH_FAILURE;
 743         os_memcpy(hapd->wps_stats.peer_addr, data->peer_macaddr, ETH_ALEN);
 744
 745         hostapd_wps_for_each(hapd, wps_pwd_auth_fail, data);
 746 }
 747
 748
 749 static int wps_ap_pin_success(struct hostapd_data *hapd, void *ctx)
 750 {
 751         if (hapd->conf->ap_pin == NULL || hapd->wps == NULL)
 752                 return 0;
 753
 754         if (hapd->ap_pin_failures_consecutive == 0)
 755                 return 0;
 756
 757         wpa_printf(MSG_DEBUG, "WPS: Clear consecutive AP PIN failure counter "
 758                    "- total validation failures %u (%u consecutive)",
 759                    hapd->ap_pin_failures, hapd->ap_pin_failures_consecutive);
 760         hapd->ap_pin_failures_consecutive = 0;
 761
 762         return 0;
 763 }
 764
 765
 766 static void hostapd_wps_ap_pin_success(struct hostapd_data *hapd)
 767 {
 768         hostapd_wps_for_each(hapd, wps_ap_pin_success, NULL);
 769 }
 770
 771
 772 static void hostapd_wps_event_pbc_overlap(struct hostapd_data *hapd)
 773 {
 774         /* Update WPS Status - PBC Overlap */
 775         hapd->wps_stats.pbc_status = WPS_PBC_STATUS_OVERLAP;
 776 }
 777
 778
 779 static void hostapd_wps_event_pbc_timeout(struct hostapd_data *hapd)
 780 {
 781         /* Update WPS PBC Status:PBC Timeout */
 782         hapd->wps_stats.pbc_status = WPS_PBC_STATUS_TIMEOUT;
 783 }
 784
 785
 786 static void hostapd_wps_event_pbc_active(struct hostapd_data *hapd)
 787 {
 788         /* Update WPS PBC status - Active */
 789         hapd->wps_stats.pbc_status = WPS_PBC_STATUS_ACTIVE;
 790 }
 791
 792
 793 static void hostapd_wps_event_pbc_disable(struct hostapd_data *hapd)
 794 {
 795         /* Update WPS PBC status - Active */
 796         hapd->wps_stats.pbc_status = WPS_PBC_STATUS_DISABLE;
 797 }
 798
 799
 800 static void hostapd_wps_event_success(struct hostapd_data *hapd,
 801                                       struct wps_event_success *success)
 802 {
 803         /* Update WPS status - Success */
 804         hapd->wps_stats.pbc_status = WPS_PBC_STATUS_DISABLE;
 805         hapd->wps_stats.status = WPS_STATUS_SUCCESS;
 806         os_memcpy(hapd->wps_stats.peer_addr, success->peer_macaddr, ETH_ALEN);
 807 }
 808
 809
 810 static void hostapd_wps_event_fail(struct hostapd_data *hapd,
 811                                    struct wps_event_fail *fail)
 812 {
 813         /* Update WPS status - Failure */
 814         hapd->wps_stats.status = WPS_STATUS_FAILURE;
 815         os_memcpy(hapd->wps_stats.peer_addr, fail->peer_macaddr, ETH_ALEN);
 816
 817         hapd->wps_stats.failure_reason = fail->error_indication;
 818
 819         if (fail->error_indication > 0 &&
 820             fail->error_indication < NUM_WPS_EI_VALUES) {
 821                 wpa_msg(hapd->msg_ctx, MSG_INFO,
 822                         WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
 823                         fail->msg, fail->config_error, fail->error_indication,
 824                         wps_ei_str(fail->error_indication));
 825         } else {
 826                 wpa_msg(hapd->msg_ctx, MSG_INFO,
 827                         WPS_EVENT_FAIL "msg=%d config_error=%d",
 828                         fail->msg, fail->config_error);
 829         }
 830 }
 831
 832
 833 static void hostapd_wps_event_cb(void *ctx, enum wps_event event,
 834                                  union wps_event_data *data)
 835 {
 836         struct hostapd_data *hapd = ctx;
 837
 838         switch (event) {
 839         case WPS_EV_M2D:
 840                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_M2D);
 841                 break;
 842         case WPS_EV_FAIL:
 843                 hostapd_wps_event_fail(hapd, &data->fail);
 844                 break;
 845         case WPS_EV_SUCCESS:
 846                 hostapd_wps_event_success(hapd, &data->success);
 847                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_SUCCESS);
 848                 break;
 849         case WPS_EV_PWD_AUTH_FAIL:
 850                 hostapd_pwd_auth_fail(hapd, &data->pwd_auth_fail);
 851                 break;
 852         case WPS_EV_PBC_OVERLAP:
 853                 hostapd_wps_event_pbc_overlap(hapd);
 854                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_OVERLAP);
 855                 break;
 856         case WPS_EV_PBC_TIMEOUT:
 857                 hostapd_wps_event_pbc_timeout(hapd);
 858                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_TIMEOUT);
 859                 break;
 860         case WPS_EV_PBC_ACTIVE:
 861                 hostapd_wps_event_pbc_active(hapd);
 862                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_ACTIVE);
 863                 break;
 864         case WPS_EV_PBC_DISABLE:
 865                 hostapd_wps_event_pbc_disable(hapd);
 866                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_DISABLE);
 867                 break;
 868         case WPS_EV_ER_AP_ADD:
 869                 break;
 870         case WPS_EV_ER_AP_REMOVE:
 871                 break;
 872         case WPS_EV_ER_ENROLLEE_ADD:
 873                 break;
 874         case WPS_EV_ER_ENROLLEE_REMOVE:
 875                 break;
 876         case WPS_EV_ER_AP_SETTINGS:
 877                 break;
 878         case WPS_EV_ER_SET_SELECTED_REGISTRAR:
 879                 break;
 880         case WPS_EV_AP_PIN_SUCCESS:
 881                 hostapd_wps_ap_pin_success(hapd);
 882                 break;
 883         }
 884         if (hapd->wps_event_cb)
 885                 hapd->wps_event_cb(hapd->wps_event_cb_ctx, event, data);
 886 }
 887
 888
 889 static int hostapd_wps_rf_band_cb(void *ctx)
 890 {
 891         struct hostapd_data *hapd = ctx;
 892
 893         return hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
 894                 WPS_RF_50GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
 895 }
 896
 897
 898 static void hostapd_wps_clear_ies(struct hostapd_data *hapd)
 899 {
 900         wpabuf_free(hapd->wps_beacon_ie);
 901         hapd->wps_beacon_ie = NULL;
 902
 903         wpabuf_free(hapd->wps_probe_resp_ie);
 904         hapd->wps_probe_resp_ie = NULL;
 905
 906         hostapd_set_ap_wps_ie(hapd);
 907 }
 908
 909
 910 static int get_uuid_cb(struct hostapd_iface *iface, void *ctx)
 911 {
 912         const u8 **uuid = ctx;
 913         size_t j;
 914
 915         if (iface == NULL)
 916                 return 0;
 917         for (j = 0; j < iface->num_bss; j++) {
 918                 struct hostapd_data *hapd = iface->bss[j];
 919                 if (hapd->wps && !hapd->conf->wps_independent &&
 920                     !is_nil_uuid(hapd->wps->uuid)) {
 921                         *uuid = hapd->wps->uuid;
 922                         return 1;
 923                 }
 924         }
 925
 926         return 0;
 927 }
 928
 929
 930 static const u8 * get_own_uuid(struct hostapd_iface *iface)
 931 {
 932         const u8 *uuid;
 933         if (iface->interfaces == NULL ||
 934             iface->interfaces->for_each_interface == NULL)
 935                 return NULL;
 936         uuid = NULL;
 937         iface->interfaces->for_each_interface(iface->interfaces, get_uuid_cb,
 938                                               &uuid);
 939         return uuid;
 940 }
 941
 942
 943 static int count_interface_cb(struct hostapd_iface *iface, void *ctx)
 944 {
 945         int *count= ctx;
 946         (*count)++;
 947         return 0;
 948 }
 949
 950
 951 static int interface_count(struct hostapd_iface *iface)
 952 {
 953         int count = 0;
 954         if (iface->interfaces == NULL ||
 955             iface->interfaces->for_each_interface == NULL)
 956                 return 0;
 957         iface->interfaces->for_each_interface(iface->interfaces,
 958                                               count_interface_cb, &count);
 959         return count;
 960 }
 961
 962
 963 static int hostapd_wps_set_vendor_ext(struct hostapd_data *hapd,
 964                                       struct wps_context *wps)
 965 {
 966         int i;
 967
 968         for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++) {
 969                 wpabuf_free(wps->dev.vendor_ext[i]);
 970                 wps->dev.vendor_ext[i] = NULL;
 971
 972                 if (hapd->conf->wps_vendor_ext[i] == NULL)
 973                         continue;
 974
 975                 wps->dev.vendor_ext[i] =
 976                         wpabuf_dup(hapd->conf->wps_vendor_ext[i]);
 977                 if (wps->dev.vendor_ext[i] == NULL) {
 978                         while (--i >= 0)
 979                                 wpabuf_free(wps->dev.vendor_ext[i]);
 980                         return -1;
 981                 }
 982         }
 983
 984         return 0;
 985 }
 986
 987
 988 int hostapd_init_wps(struct hostapd_data *hapd,
 989                      struct hostapd_bss_config *conf)
 990 {
 991         struct wps_context *wps;
 992         struct wps_registrar_config cfg;
 993
 994         if (conf->wps_state == 0) {
 995                 hostapd_wps_clear_ies(hapd);
 996                 return 0;
 997         }
 998
 999         wps = os_zalloc(sizeof(*wps));
1000         if (wps == NULL)
1001                 return -1;
1002
1003         wps->cred_cb = hostapd_wps_cred_cb;
1004         wps->event_cb = hostapd_wps_event_cb;
1005         wps->rf_band_cb = hostapd_wps_rf_band_cb;
1006         wps->cb_ctx = hapd;
1007
1008         os_memset(&cfg, 0, sizeof(cfg));
1009         wps->wps_state = hapd->conf->wps_state;
1010         wps->ap_setup_locked = hapd->conf->ap_setup_locked;
1011         if (is_nil_uuid(hapd->conf->uuid)) {
1012                 const u8 *uuid;
1013                 uuid = get_own_uuid(hapd->iface);
1014                 if (uuid && !conf->wps_independent) {
1015                         os_memcpy(wps->uuid, uuid, UUID_LEN);
1016                         wpa_hexdump(MSG_DEBUG, "WPS: Clone UUID from another "
1017                                     "interface", wps->uuid, UUID_LEN);
1018                 } else {
1019                         uuid_gen_mac_addr(hapd->own_addr, wps->uuid);
1020                         wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
1021                                     "address", wps->uuid, UUID_LEN);
1022                 }
1023         } else {
1024                 os_memcpy(wps->uuid, hapd->conf->uuid, UUID_LEN);
1025                 wpa_hexdump(MSG_DEBUG, "WPS: Use configured UUID",
1026                             wps->uuid, UUID_LEN);
1027         }
1028         wps->ssid_len = hapd->conf->ssid.ssid_len;
1029         os_memcpy(wps->ssid, hapd->conf->ssid.ssid, wps->ssid_len);
1030         wps->ap = 1;
1031         os_memcpy(wps->dev.mac_addr, hapd->own_addr, ETH_ALEN);
1032         wps->dev.device_name = hapd->conf->device_name ?
1033                 os_strdup(hapd->conf->device_name) : NULL;
1034         wps->dev.manufacturer = hapd->conf->manufacturer ?
1035                 os_strdup(hapd->conf->manufacturer) : NULL;
1036         wps->dev.model_name = hapd->conf->model_name ?
1037                 os_strdup(hapd->conf->model_name) : NULL;
1038         wps->dev.model_number = hapd->conf->model_number ?
1039                 os_strdup(hapd->conf->model_number) : NULL;
1040         wps->dev.serial_number = hapd->conf->serial_number ?
1041                 os_strdup(hapd->conf->serial_number) : NULL;
1042         wps->config_methods =
1043                 wps_config_methods_str2bin(hapd->conf->config_methods);
1044 #ifdef CONFIG_WPS2
1045         if ((wps->config_methods &
1046              (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
1047               WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
1048                 wpa_printf(MSG_INFO, "WPS: Converting display to "
1049                            "virtual_display for WPS 2.0 compliance");
1050                 wps->config_methods |= WPS_CONFIG_VIRT_DISPLAY;
1051         }
1052         if ((wps->config_methods &
1053              (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
1054               WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
1055                 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
1056                            "virtual_push_button for WPS 2.0 compliance");
1057                 wps->config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
1058         }
1059 #endif /* CONFIG_WPS2 */
1060         os_memcpy(wps->dev.pri_dev_type, hapd->conf->device_type,
1061                   WPS_DEV_TYPE_LEN);
1062
1063         if (hostapd_wps_set_vendor_ext(hapd, wps) < 0) {
1064                 os_free(wps);
1065                 return -1;
1066         }
1067
1068         wps->dev.os_version = WPA_GET_BE32(hapd->conf->os_version);
1069
1070         if (conf->wps_rf_bands) {
1071                 wps->dev.rf_bands = conf->wps_rf_bands;
1072         } else {
1073                 wps->dev.rf_bands =
1074                         hapd->iconf->hw_mode == HOSTAPD_MODE_IEEE80211A ?
1075                         WPS_RF_50GHZ : WPS_RF_24GHZ; /* FIX: dualband AP */
1076         }
1077
1078         if (conf->wpa & WPA_PROTO_RSN) {
1079                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
1080                         wps->auth_types |= WPS_AUTH_WPA2PSK;
1081                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
1082                         wps->auth_types |= WPS_AUTH_WPA2;
1083
1084                 if (conf->rsn_pairwise & WPA_CIPHER_CCMP)
1085                         wps->encr_types |= WPS_ENCR_AES;
1086                 if (conf->rsn_pairwise & WPA_CIPHER_TKIP)
1087                         wps->encr_types |= WPS_ENCR_TKIP;
1088         }
1089
1090         if (conf->wpa & WPA_PROTO_WPA) {
1091                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK)
1092                         wps->auth_types |= WPS_AUTH_WPAPSK;
1093                 if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X)
1094                         wps->auth_types |= WPS_AUTH_WPA;
1095
1096                 if (conf->wpa_pairwise & WPA_CIPHER_CCMP)
1097                         wps->encr_types |= WPS_ENCR_AES;
1098                 if (conf->wpa_pairwise & WPA_CIPHER_TKIP)
1099                         wps->encr_types |= WPS_ENCR_TKIP;
1100         }
1101
1102         if (conf->ssid.security_policy == SECURITY_PLAINTEXT) {
1103                 wps->encr_types |= WPS_ENCR_NONE;
1104                 wps->auth_types |= WPS_AUTH_OPEN;
1105         } else if (conf->ssid.security_policy == SECURITY_STATIC_WEP) {
1106                 wps->encr_types |= WPS_ENCR_WEP;
1107                 if (conf->auth_algs & WPA_AUTH_ALG_OPEN)
1108                         wps->auth_types |= WPS_AUTH_OPEN;
1109                 if (conf->auth_algs & WPA_AUTH_ALG_SHARED)
1110                         wps->auth_types |= WPS_AUTH_SHARED;
1111         } else if (conf->ssid.security_policy == SECURITY_IEEE_802_1X) {
1112                 wps->auth_types |= WPS_AUTH_OPEN;
1113                 if (conf->default_wep_key_len)
1114                         wps->encr_types |= WPS_ENCR_WEP;
1115                 else
1116                         wps->encr_types |= WPS_ENCR_NONE;
1117         }
1118
1119         if (conf->ssid.wpa_psk_file) {
1120                 /* Use per-device PSKs */
1121         } else if (conf->ssid.wpa_passphrase) {
1122                 wps->network_key = (u8 *) os_strdup(conf->ssid.wpa_passphrase);
1123                 wps->network_key_len = os_strlen(conf->ssid.wpa_passphrase);
1124         } else if (conf->ssid.wpa_psk) {
1125                 wps->network_key = os_malloc(2 * PMK_LEN + 1);
1126                 if (wps->network_key == NULL) {
1127                         os_free(wps);
1128                         return -1;
1129                 }
1130                 wpa_snprintf_hex((char *) wps->network_key, 2 * PMK_LEN + 1,
1131                                  conf->ssid.wpa_psk->psk, PMK_LEN);
1132                 wps->network_key_len = 2 * PMK_LEN;
1133         } else if (conf->ssid.wep.keys_set && conf->ssid.wep.key[0]) {
1134                 wps->network_key = os_malloc(conf->ssid.wep.len[0]);
1135                 if (wps->network_key == NULL) {
1136                         os_free(wps);
1137                         return -1;
1138                 }
1139                 os_memcpy(wps->network_key, conf->ssid.wep.key[0],
1140                           conf->ssid.wep.len[0]);
1141                 wps->network_key_len = conf->ssid.wep.len[0];
1142         }
1143
1144         if (conf->ssid.wpa_psk) {
1145                 os_memcpy(wps->psk, conf->ssid.wpa_psk->psk, PMK_LEN);
1146                 wps->psk_set = 1;
1147         }
1148
1149         if (conf->wps_state == WPS_STATE_NOT_CONFIGURED) {
1150                 /* Override parameters to enable security by default */
1151                 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
1152                 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
1153         }
1154
1155         wps->ap_settings = conf->ap_settings;
1156         wps->ap_settings_len = conf->ap_settings_len;
1157
1158         cfg.new_psk_cb = hostapd_wps_new_psk_cb;
1159         cfg.set_ie_cb = hostapd_wps_set_ie_cb;
1160         cfg.pin_needed_cb = hostapd_wps_pin_needed_cb;
1161         cfg.reg_success_cb = hostapd_wps_reg_success_cb;
1162         cfg.enrollee_seen_cb = hostapd_wps_enrollee_seen_cb;
1163         cfg.cb_ctx = hapd;
1164         cfg.skip_cred_build = conf->skip_cred_build;
1165         cfg.extra_cred = conf->extra_cred;
1166         cfg.extra_cred_len = conf->extra_cred_len;
1167         cfg.disable_auto_conf = (hapd->conf->wps_cred_processing == 1) &&
1168                 conf->skip_cred_build;
1169         if (conf->ssid.security_policy == SECURITY_STATIC_WEP)
1170                 cfg.static_wep_only = 1;
1171         cfg.dualband = interface_count(hapd->iface) > 1;
1172         if ((wps->dev.rf_bands & (WPS_RF_50GHZ | WPS_RF_24GHZ)) ==
1173             (WPS_RF_50GHZ | WPS_RF_24GHZ))
1174                 cfg.dualband = 1;
1175         if (cfg.dualband)
1176                 wpa_printf(MSG_DEBUG, "WPS: Dualband AP");
1177         cfg.force_per_enrollee_psk = conf->force_per_enrollee_psk;
1178
1179         wps->registrar = wps_registrar_init(wps, &cfg);
1180         if (wps->registrar == NULL) {
1181                 wpa_printf(MSG_ERROR, "Failed to initialize WPS Registrar");
1182                 os_free(wps->network_key);
1183                 os_free(wps);
1184                 return -1;
1185         }
1186
1187 #ifdef CONFIG_WPS_UPNP
1188         wps->friendly_name = hapd->conf->friendly_name;
1189         wps->manufacturer_url = hapd->conf->manufacturer_url;
1190         wps->model_description = hapd->conf->model_description;
1191         wps->model_url = hapd->conf->model_url;
1192         wps->upc = hapd->conf->upc;
1193 #endif /* CONFIG_WPS_UPNP */
1194
1195         hostapd_register_probereq_cb(hapd, hostapd_wps_probe_req_rx, hapd);
1196
1197         hapd->wps = wps;
1198
1199         return 0;
1200 }
1201
1202
1203 int hostapd_init_wps_complete(struct hostapd_data *hapd)
1204 {
1205         struct wps_context *wps = hapd->wps;
1206
1207         if (wps == NULL)
1208                 return 0;
1209
1210 #ifdef CONFIG_WPS_UPNP
1211         if (hostapd_wps_upnp_init(hapd, wps) < 0) {
1212                 wpa_printf(MSG_ERROR, "Failed to initialize WPS UPnP");
1213                 wps_registrar_deinit(wps->registrar);
1214                 os_free(wps->network_key);
1215                 os_free(wps);
1216                 hapd->wps = NULL;
1217                 return -1;
1218         }
1219 #endif /* CONFIG_WPS_UPNP */
1220
1221         return 0;
1222 }
1223
1224
1225 static void hostapd_wps_nfc_clear(struct wps_context *wps)
1226 {
1227 #ifdef CONFIG_WPS_NFC
1228         wpa_printf(MSG_DEBUG, "WPS: Clear NFC Tag context %p", wps);
1229         wps->ap_nfc_dev_pw_id = 0;
1230         wpabuf_free(wps->ap_nfc_dh_pubkey);
1231         wps->ap_nfc_dh_pubkey = NULL;
1232         wpabuf_free(wps->ap_nfc_dh_privkey);
1233         wps->ap_nfc_dh_privkey = NULL;
1234         wpabuf_free(wps->ap_nfc_dev_pw);
1235         wps->ap_nfc_dev_pw = NULL;
1236 #endif /* CONFIG_WPS_NFC */
1237 }
1238
1239
1240 void hostapd_deinit_wps(struct hostapd_data *hapd)
1241 {
1242         eloop_cancel_timeout(hostapd_wps_reenable_ap_pin, hapd, NULL);
1243         eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1244         eloop_cancel_timeout(wps_reload_config, hapd->iface, NULL);
1245         if (hapd->wps == NULL)
1246                 return;
1247 #ifdef CONFIG_WPS_UPNP
1248         hostapd_wps_upnp_deinit(hapd);
1249 #endif /* CONFIG_WPS_UPNP */
1250         wps_registrar_deinit(hapd->wps->registrar);
1251         os_free(hapd->wps->network_key);
1252         wps_device_data_free(&hapd->wps->dev);
1253         wpabuf_free(hapd->wps->dh_pubkey);
1254         wpabuf_free(hapd->wps->dh_privkey);
1255         wps_free_pending_msgs(hapd->wps->upnp_msgs);
1256         hostapd_wps_nfc_clear(hapd->wps);
1257         os_free(hapd->wps);
1258         hapd->wps = NULL;
1259         hostapd_wps_clear_ies(hapd);
1260 }
1261
1262
1263 void hostapd_update_wps(struct hostapd_data *hapd)
1264 {
1265         if (hapd->wps == NULL)
1266                 return;
1267
1268 #ifdef CONFIG_WPS_UPNP
1269         hapd->wps->friendly_name = hapd->conf->friendly_name;
1270         hapd->wps->manufacturer_url = hapd->conf->manufacturer_url;
1271         hapd->wps->model_description = hapd->conf->model_description;
1272         hapd->wps->model_url = hapd->conf->model_url;
1273         hapd->wps->upc = hapd->conf->upc;
1274 #endif /* CONFIG_WPS_UPNP */
1275
1276         hostapd_wps_set_vendor_ext(hapd, hapd->wps);
1277
1278         if (hapd->conf->wps_state)
1279                 wps_registrar_update_ie(hapd->wps->registrar);
1280         else
1281                 hostapd_deinit_wps(hapd);
1282 }
1283
1284
1285 struct wps_add_pin_data {
1286         const u8 *addr;
1287         const u8 *uuid;
1288         const u8 *pin;
1289         size_t pin_len;
1290         int timeout;
1291         int added;
1292 };
1293
1294
1295 static int wps_add_pin(struct hostapd_data *hapd, void *ctx)
1296 {
1297         struct wps_add_pin_data *data = ctx;
1298         int ret;
1299
1300         if (hapd->wps == NULL)
1301                 return 0;
1302         ret = wps_registrar_add_pin(hapd->wps->registrar, data->addr,
1303                                     data->uuid, data->pin, data->pin_len,
1304                                     data->timeout);
1305         if (ret == 0)
1306                 data->added++;
1307         return ret;
1308 }
1309
1310
1311 int hostapd_wps_add_pin(struct hostapd_data *hapd, const u8 *addr,
1312                         const char *uuid, const char *pin, int timeout)
1313 {
1314         u8 u[UUID_LEN];
1315         struct wps_add_pin_data data;
1316
1317         data.addr = addr;
1318         data.uuid = u;
1319         data.pin = (const u8 *) pin;
1320         data.pin_len = os_strlen(pin);
1321         data.timeout = timeout;
1322         data.added = 0;
1323
1324         if (os_strcmp(uuid, "any") == 0)
1325                 data.uuid = NULL;
1326         else {
1327                 if (uuid_str2bin(uuid, u))
1328                         return -1;
1329                 data.uuid = u;
1330         }
1331         if (hostapd_wps_for_each(hapd, wps_add_pin, &data) < 0)
1332                 return -1;
1333         return data.added ? 0 : -1;
1334 }
1335
1336
1337 static int wps_button_pushed(struct hostapd_data *hapd, void *ctx)
1338 {
1339         const u8 *p2p_dev_addr = ctx;
1340         if (hapd->wps == NULL)
1341                 return 0;
1342         return wps_registrar_button_pushed(hapd->wps->registrar, p2p_dev_addr);
1343 }
1344
1345
1346 int hostapd_wps_button_pushed(struct hostapd_data *hapd,
1347                               const u8 *p2p_dev_addr)
1348 {
1349         return hostapd_wps_for_each(hapd, wps_button_pushed,
1350                                     (void *) p2p_dev_addr);
1351 }
1352
1353
1354 static int wps_cancel(struct hostapd_data *hapd, void *ctx)
1355 {
1356         if (hapd->wps == NULL)
1357                 return 0;
1358
1359         wps_registrar_wps_cancel(hapd->wps->registrar);
1360         ap_for_each_sta(hapd, ap_sta_wps_cancel, NULL);
1361
1362         return 0;
1363 }
1364
1365
1366 int hostapd_wps_cancel(struct hostapd_data *hapd)
1367 {
1368         return hostapd_wps_for_each(hapd, wps_cancel, NULL);
1369 }
1370
1371
1372 static int hostapd_wps_probe_req_rx(void *ctx, const u8 *addr, const u8 *da,
1373                                     const u8 *bssid,
1374                                     const u8 *ie, size_t ie_len,
1375                                     int ssi_signal)
1376 {
1377         struct hostapd_data *hapd = ctx;
1378         struct wpabuf *wps_ie;
1379         struct ieee802_11_elems elems;
1380
1381         if (hapd->wps == NULL)
1382                 return 0;
1383
1384         if (ieee802_11_parse_elems(ie, ie_len, &elems, 0) == ParseFailed) {
1385                 wpa_printf(MSG_DEBUG, "WPS: Could not parse ProbeReq from "
1386                            MACSTR, MAC2STR(addr));
1387                 return 0;
1388         }
1389
1390         if (elems.ssid && elems.ssid_len > 0 &&
1391             (elems.ssid_len != hapd->conf->ssid.ssid_len ||
1392              os_memcmp(elems.ssid, hapd->conf->ssid.ssid, elems.ssid_len) !=
1393              0))
1394                 return 0; /* Not for us */
1395
1396         wps_ie = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
1397         if (wps_ie == NULL)
1398                 return 0;
1399         if (wps_validate_probe_req(wps_ie, addr) < 0) {
1400                 wpabuf_free(wps_ie);
1401                 return 0;
1402         }
1403
1404         if (wpabuf_len(wps_ie) > 0) {
1405                 int p2p_wildcard = 0;
1406 #ifdef CONFIG_P2P
1407                 if (elems.ssid && elems.ssid_len == P2P_WILDCARD_SSID_LEN &&
1408                     os_memcmp(elems.ssid, P2P_WILDCARD_SSID,
1409                               P2P_WILDCARD_SSID_LEN) == 0)
1410                         p2p_wildcard = 1;
1411 #endif /* CONFIG_P2P */
1412                 wps_registrar_probe_req_rx(hapd->wps->registrar, addr, wps_ie,
1413                                            p2p_wildcard);
1414 #ifdef CONFIG_WPS_UPNP
1415                 /* FIX: what exactly should be included in the WLANEvent?
1416                  * WPS attributes? Full ProbeReq frame? */
1417                 if (!p2p_wildcard)
1418                         upnp_wps_device_send_wlan_event(
1419                                 hapd->wps_upnp, addr,
1420                                 UPNP_WPS_WLANEVENT_TYPE_PROBE, wps_ie);
1421 #endif /* CONFIG_WPS_UPNP */
1422         }
1423
1424         wpabuf_free(wps_ie);
1425
1426         return 0;
1427 }
1428
1429
1430 #ifdef CONFIG_WPS_UPNP
1431
1432 static int hostapd_rx_req_put_wlan_response(
1433         void *priv, enum upnp_wps_wlanevent_type ev_type,
1434         const u8 *mac_addr, const struct wpabuf *msg,
1435         enum wps_msg_type msg_type)
1436 {
1437         struct hostapd_data *hapd = priv;
1438         struct sta_info *sta;
1439         struct upnp_pending_message *p;
1440
1441         wpa_printf(MSG_DEBUG, "WPS UPnP: PutWLANResponse ev_type=%d mac_addr="
1442                    MACSTR, ev_type, MAC2STR(mac_addr));
1443         wpa_hexdump(MSG_MSGDUMP, "WPS UPnP: PutWLANResponse NewMessage",
1444                     wpabuf_head(msg), wpabuf_len(msg));
1445         if (ev_type != UPNP_WPS_WLANEVENT_TYPE_EAP) {
1446                 wpa_printf(MSG_DEBUG, "WPS UPnP: Ignored unexpected "
1447                            "PutWLANResponse WLANEventType %d", ev_type);
1448                 return -1;
1449         }
1450
1451         /*
1452          * EAP response to ongoing to WPS Registration. Send it to EAP-WSC
1453          * server implementation for delivery to the peer.
1454          */
1455
1456         sta = ap_get_sta(hapd, mac_addr);
1457 #ifndef CONFIG_WPS_STRICT
1458         if (!sta) {
1459                 /*
1460                  * Workaround - Intel wsccmd uses bogus NewWLANEventMAC:
1461                  * Pick STA that is in an ongoing WPS registration without
1462                  * checking the MAC address.
1463                  */
1464                 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found based "
1465                            "on NewWLANEventMAC; try wildcard match");
1466                 for (sta = hapd->sta_list; sta; sta = sta->next) {
1467                         if (sta->eapol_sm && (sta->flags & WLAN_STA_WPS))
1468                                 break;
1469                 }
1470         }
1471 #endif /* CONFIG_WPS_STRICT */
1472
1473         if (!sta || !(sta->flags & WLAN_STA_WPS)) {
1474                 wpa_printf(MSG_DEBUG, "WPS UPnP: No matching STA found");
1475                 return 0;
1476         }
1477
1478         p = os_zalloc(sizeof(*p));
1479         if (p == NULL)
1480                 return -1;
1481         os_memcpy(p->addr, sta->addr, ETH_ALEN);
1482         p->msg = wpabuf_dup(msg);
1483         p->type = msg_type;
1484         p->next = hapd->wps->upnp_msgs;
1485         hapd->wps->upnp_msgs = p;
1486
1487         return eapol_auth_eap_pending_cb(sta->eapol_sm, sta->eapol_sm->eap);
1488 }
1489
1490
1491 static int hostapd_wps_upnp_init(struct hostapd_data *hapd,
1492                                  struct wps_context *wps)
1493 {
1494         struct upnp_wps_device_ctx *ctx;
1495
1496         if (!hapd->conf->upnp_iface)
1497                 return 0;
1498         ctx = os_zalloc(sizeof(*ctx));
1499         if (ctx == NULL)
1500                 return -1;
1501
1502         ctx->rx_req_put_wlan_response = hostapd_rx_req_put_wlan_response;
1503         if (hapd->conf->ap_pin)
1504                 ctx->ap_pin = os_strdup(hapd->conf->ap_pin);
1505
1506         hapd->wps_upnp = upnp_wps_device_init(ctx, wps, hapd,
1507                                               hapd->conf->upnp_iface);
1508         if (hapd->wps_upnp == NULL)
1509                 return -1;
1510         wps->wps_upnp = hapd->wps_upnp;
1511
1512         return 0;
1513 }
1514
1515
1516 static void hostapd_wps_upnp_deinit(struct hostapd_data *hapd)
1517 {
1518         upnp_wps_device_deinit(hapd->wps_upnp, hapd);
1519 }
1520
1521 #endif /* CONFIG_WPS_UPNP */
1522
1523
1524 int hostapd_wps_get_mib_sta(struct hostapd_data *hapd, const u8 *addr,
1525                             char *buf, size_t buflen)
1526 {
1527         if (hapd->wps == NULL)
1528                 return 0;
1529         return wps_registrar_get_info(hapd->wps->registrar, addr, buf, buflen);
1530 }
1531
1532
1533 static void hostapd_wps_ap_pin_timeout(void *eloop_data, void *user_ctx)
1534 {
1535         struct hostapd_data *hapd = eloop_data;
1536         wpa_printf(MSG_DEBUG, "WPS: AP PIN timed out");
1537         hostapd_wps_ap_pin_disable(hapd);
1538         wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_PIN_DISABLED);
1539 }
1540
1541
1542 static void hostapd_wps_ap_pin_enable(struct hostapd_data *hapd, int timeout)
1543 {
1544         wpa_printf(MSG_DEBUG, "WPS: Enabling AP PIN (timeout=%d)", timeout);
1545         hapd->ap_pin_failures = 0;
1546         hapd->ap_pin_failures_consecutive = 0;
1547         hapd->conf->ap_setup_locked = 0;
1548         if (hapd->wps->ap_setup_locked) {
1549                 wpa_msg(hapd->msg_ctx, MSG_INFO, WPS_EVENT_AP_SETUP_UNLOCKED);
1550                 hapd->wps->ap_setup_locked = 0;
1551                 wps_registrar_update_ie(hapd->wps->registrar);
1552         }
1553         eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1554         if (timeout > 0)
1555                 eloop_register_timeout(timeout, 0,
1556                                        hostapd_wps_ap_pin_timeout, hapd, NULL);
1557 }
1558
1559
1560 static int wps_ap_pin_disable(struct hostapd_data *hapd, void *ctx)
1561 {
1562         os_free(hapd->conf->ap_pin);
1563         hapd->conf->ap_pin = NULL;
1564 #ifdef CONFIG_WPS_UPNP
1565         upnp_wps_set_ap_pin(hapd->wps_upnp, NULL);
1566 #endif /* CONFIG_WPS_UPNP */
1567         eloop_cancel_timeout(hostapd_wps_ap_pin_timeout, hapd, NULL);
1568         return 0;
1569 }
1570
1571
1572 void hostapd_wps_ap_pin_disable(struct hostapd_data *hapd)
1573 {
1574         wpa_printf(MSG_DEBUG, "WPS: Disabling AP PIN");
1575         hostapd_wps_for_each(hapd, wps_ap_pin_disable, NULL);
1576 }
1577
1578
1579 struct wps_ap_pin_data {
1580         char pin_txt[9];
1581         int timeout;
1582 };
1583
1584
1585 static int wps_ap_pin_set(struct hostapd_data *hapd, void *ctx)
1586 {
1587         struct wps_ap_pin_data *data = ctx;
1588         os_free(hapd->conf->ap_pin);
1589         hapd->conf->ap_pin = os_strdup(data->pin_txt);
1590 #ifdef CONFIG_WPS_UPNP
1591         upnp_wps_set_ap_pin(hapd->wps_upnp, data->pin_txt);
1592 #endif /* CONFIG_WPS_UPNP */
1593         hostapd_wps_ap_pin_enable(hapd, data->timeout);
1594         return 0;
1595 }
1596
1597
1598 const char * hostapd_wps_ap_pin_random(struct hostapd_data *hapd, int timeout)
1599 {
1600         unsigned int pin;
1601         struct wps_ap_pin_data data;
1602
1603         pin = wps_generate_pin();
1604         os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%08u", pin);
1605         data.timeout = timeout;
1606         hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
1607         return hapd->conf->ap_pin;
1608 }
1609
1610
1611 const char * hostapd_wps_ap_pin_get(struct hostapd_data *hapd)
1612 {
1613         return hapd->conf->ap_pin;
1614 }
1615
1616
1617 int hostapd_wps_ap_pin_set(struct hostapd_data *hapd, const char *pin,
1618                            int timeout)
1619 {
1620         struct wps_ap_pin_data data;
1621         int ret;
1622
1623         ret = os_snprintf(data.pin_txt, sizeof(data.pin_txt), "%s", pin);
1624         if (ret < 0 || ret >= (int) sizeof(data.pin_txt))
1625                 return -1;
1626         data.timeout = timeout;
1627         return hostapd_wps_for_each(hapd, wps_ap_pin_set, &data);
1628 }
1629
1630
1631 static int wps_update_ie(struct hostapd_data *hapd, void *ctx)
1632 {
1633         if (hapd->wps)
1634                 wps_registrar_update_ie(hapd->wps->registrar);
1635         return 0;
1636 }
1637
1638
1639 void hostapd_wps_update_ie(struct hostapd_data *hapd)
1640 {
1641         hostapd_wps_for_each(hapd, wps_update_ie, NULL);
1642 }
1643
1644
1645 int hostapd_wps_config_ap(struct hostapd_data *hapd, const char *ssid,
1646                           const char *auth, const char *encr, const char *key)
1647 {
1648         struct wps_credential cred;
1649         size_t len;
1650
1651         os_memset(&cred, 0, sizeof(cred));
1652
1653         len = os_strlen(ssid);
1654         if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
1655             hexstr2bin(ssid, cred.ssid, len / 2))
1656                 return -1;
1657         cred.ssid_len = len / 2;
1658
1659         if (os_strncmp(auth, "OPEN", 4) == 0)
1660                 cred.auth_type = WPS_AUTH_OPEN;
1661         else if (os_strncmp(auth, "WPAPSK", 6) == 0)
1662                 cred.auth_type = WPS_AUTH_WPAPSK;
1663         else if (os_strncmp(auth, "WPA2PSK", 7) == 0)
1664                 cred.auth_type = WPS_AUTH_WPA2PSK;
1665         else
1666                 return -1;
1667
1668         if (encr) {
1669                 if (os_strncmp(encr, "NONE", 4) == 0)
1670                         cred.encr_type = WPS_ENCR_NONE;
1671                 else if (os_strncmp(encr, "WEP", 3) == 0)
1672                         cred.encr_type = WPS_ENCR_WEP;
1673                 else if (os_strncmp(encr, "TKIP", 4) == 0)
1674                         cred.encr_type = WPS_ENCR_TKIP;
1675                 else if (os_strncmp(encr, "CCMP", 4) == 0)
1676                         cred.encr_type = WPS_ENCR_AES;
1677                 else
1678                         return -1;
1679         } else
1680                 cred.encr_type = WPS_ENCR_NONE;
1681
1682         if (key) {
1683                 len = os_strlen(key);
1684                 if ((len & 1) || len > 2 * sizeof(cred.key) ||
1685                     hexstr2bin(key, cred.key, len / 2))
1686                         return -1;
1687                 cred.key_len = len / 2;
1688         }
1689
1690         return wps_registrar_config_ap(hapd->wps->registrar, &cred);
1691 }
1692
1693
1694 #ifdef CONFIG_WPS_NFC
1695
1696 struct wps_nfc_password_token_data {
1697         const u8 *oob_dev_pw;
1698         size_t oob_dev_pw_len;
1699         int added;
1700 };
1701
1702
1703 static int wps_add_nfc_password_token(struct hostapd_data *hapd, void *ctx)
1704 {
1705         struct wps_nfc_password_token_data *data = ctx;
1706         int ret;
1707
1708         if (hapd->wps == NULL)
1709                 return 0;
1710         ret = wps_registrar_add_nfc_password_token(hapd->wps->registrar,
1711                                                    data->oob_dev_pw,
1712                                                    data->oob_dev_pw_len);
1713         if (ret == 0)
1714                 data->added++;
1715         return ret;
1716 }
1717
1718
1719 static int hostapd_wps_add_nfc_password_token(struct hostapd_data *hapd,
1720                                               struct wps_parse_attr *attr)
1721 {
1722         struct wps_nfc_password_token_data data;
1723
1724         data.oob_dev_pw = attr->oob_dev_password;
1725         data.oob_dev_pw_len = attr->oob_dev_password_len;
1726         data.added = 0;
1727         if (hostapd_wps_for_each(hapd, wps_add_nfc_password_token, &data) < 0)
1728                 return -1;
1729         return data.added ? 0 : -1;
1730 }
1731
1732
1733 static int hostapd_wps_nfc_tag_process(struct hostapd_data *hapd,
1734                                        const struct wpabuf *wps)
1735 {
1736         struct wps_parse_attr attr;
1737
1738         wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps);
1739
1740         if (wps_parse_msg(wps, &attr)) {
1741                 wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag");
1742                 return -1;
1743         }
1744
1745         if (attr.oob_dev_password)
1746                 return hostapd_wps_add_nfc_password_token(hapd, &attr);
1747
1748         wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag");
1749         return -1;
1750 }
1751
1752
1753 int hostapd_wps_nfc_tag_read(struct hostapd_data *hapd,
1754                              const struct wpabuf *data)
1755 {
1756         const struct wpabuf *wps = data;
1757         struct wpabuf *tmp = NULL;
1758         int ret;
1759
1760         if (wpabuf_len(data) < 4)
1761                 return -1;
1762
1763         if (*wpabuf_head_u8(data) != 0x10) {
1764                 /* Assume this contains full NDEF record */
1765                 tmp = ndef_parse_wifi(data);
1766                 if (tmp == NULL) {
1767                         wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF");
1768                         return -1;
1769                 }
1770                 wps = tmp;
1771         }
1772
1773         ret = hostapd_wps_nfc_tag_process(hapd, wps);
1774         wpabuf_free(tmp);
1775         return ret;
1776 }
1777
1778
1779 struct wpabuf * hostapd_wps_nfc_config_token(struct hostapd_data *hapd,
1780                                              int ndef)
1781 {
1782         struct wpabuf *ret;
1783
1784         if (hapd->wps == NULL)
1785                 return NULL;
1786
1787         ret = wps_get_oob_cred(hapd->wps, hostapd_wps_rf_band_cb(hapd),
1788                                hapd->iconf->channel);
1789         if (ndef && ret) {
1790                 struct wpabuf *tmp;
1791                 tmp = ndef_build_wifi(ret);
1792                 wpabuf_free(ret);
1793                 if (tmp == NULL)
1794                         return NULL;
1795                 ret = tmp;
1796         }
1797
1798         return ret;
1799 }
1800
1801
1802 struct wpabuf * hostapd_wps_nfc_hs_cr(struct hostapd_data *hapd, int ndef)
1803 {
1804         struct wpabuf *ret;
1805
1806         if (hapd->wps == NULL)
1807                 return NULL;
1808
1809         if (hapd->conf->wps_nfc_dh_pubkey == NULL) {
1810                 struct wps_context *wps = hapd->wps;
1811                 if (wps_nfc_gen_dh(&hapd->conf->wps_nfc_dh_pubkey,
1812                                    &hapd->conf->wps_nfc_dh_privkey) < 0)
1813                         return NULL;
1814                 hostapd_wps_nfc_clear(wps);
1815                 wps->ap_nfc_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
1816                 wps->ap_nfc_dh_pubkey =
1817                         wpabuf_dup(hapd->conf->wps_nfc_dh_pubkey);
1818                 wps->ap_nfc_dh_privkey =
1819                         wpabuf_dup(hapd->conf->wps_nfc_dh_privkey);
1820                 if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey) {
1821                         hostapd_wps_nfc_clear(wps);
1822                         return NULL;
1823                 }
1824         }
1825
1826         ret = wps_build_nfc_handover_sel(hapd->wps,
1827                                          hapd->conf->wps_nfc_dh_pubkey,
1828                                          hapd->own_addr, hapd->iface->freq);
1829
1830         if (ndef && ret) {
1831                 struct wpabuf *tmp;
1832                 tmp = ndef_build_wifi(ret);
1833                 wpabuf_free(ret);
1834                 if (tmp == NULL)
1835                         return NULL;
1836                 ret = tmp;
1837         }
1838
1839         return ret;
1840 }
1841
1842
1843 int hostapd_wps_nfc_report_handover(struct hostapd_data *hapd,
1844                                     const struct wpabuf *req,
1845                                     const struct wpabuf *sel)
1846 {
1847         struct wpabuf *wps;
1848         int ret = -1;
1849         u16 wsc_len;
1850         const u8 *pos;
1851         struct wpabuf msg;
1852         struct wps_parse_attr attr;
1853         u16 dev_pw_id;
1854
1855         /*
1856          * Enrollee/station is always initiator of the NFC connection handover,
1857          * so use the request message here to find Enrollee public key hash.
1858          */
1859         wps = ndef_parse_wifi(req);
1860         if (wps == NULL)
1861                 return -1;
1862         wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc "
1863                    "payload from NFC connection handover");
1864         wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps);
1865         if (wpabuf_len(wps) < 2) {
1866                 wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Request "
1867                            "Message");
1868                 goto out;
1869         }
1870         pos = wpabuf_head(wps);
1871         wsc_len = WPA_GET_BE16(pos);
1872         if (wsc_len > wpabuf_len(wps) - 2) {
1873                 wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) "
1874                            "in rt Wi-Fi Handover Request Message", wsc_len);
1875                 goto out;
1876         }
1877         pos += 2;
1878
1879         wpa_hexdump(MSG_DEBUG,
1880                     "WPS: WSC attributes in Wi-Fi Handover Request Message",
1881                     pos, wsc_len);
1882         if (wsc_len < wpabuf_len(wps) - 2) {
1883                 wpa_hexdump(MSG_DEBUG,
1884                             "WPS: Ignore extra data after WSC attributes",
1885                             pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len);
1886         }
1887
1888         wpabuf_set(&msg, pos, wsc_len);
1889         ret = wps_parse_msg(&msg, &attr);
1890         if (ret < 0) {
1891                 wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in "
1892                            "Wi-Fi Handover Request Message");
1893                 goto out;
1894         }
1895
1896         if (attr.oob_dev_password == NULL ||
1897             attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
1898                 wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password "
1899                            "included in Wi-Fi Handover Request Message");
1900                 ret = -1;
1901                 goto out;
1902         }
1903
1904         if (attr.uuid_e == NULL) {
1905                 wpa_printf(MSG_DEBUG, "WPS: No UUID-E included in Wi-Fi "
1906                            "Handover Request Message");
1907                 ret = -1;
1908                 goto out;
1909         }
1910
1911         wpa_hexdump(MSG_DEBUG, "WPS: UUID-E", attr.uuid_e, WPS_UUID_LEN);
1912
1913         wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password",
1914                     attr.oob_dev_password, attr.oob_dev_password_len);
1915         dev_pw_id = WPA_GET_BE16(attr.oob_dev_password +
1916                                  WPS_OOB_PUBKEY_HASH_LEN);
1917         if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) {
1918                 wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID "
1919                            "%u in Wi-Fi Handover Request Message", dev_pw_id);
1920                 ret = -1;
1921                 goto out;
1922         }
1923         wpa_hexdump(MSG_DEBUG, "WPS: Enrollee Public Key hash",
1924                     attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN);
1925
1926         ret = wps_registrar_add_nfc_pw_token(hapd->wps->registrar,
1927                                              attr.oob_dev_password,
1928                                              DEV_PW_NFC_CONNECTION_HANDOVER,
1929                                              NULL, 0, 1);
1930
1931 out:
1932         wpabuf_free(wps);
1933         return ret;
1934 }
1935
1936
1937 struct wpabuf * hostapd_wps_nfc_token_gen(struct hostapd_data *hapd, int ndef)
1938 {
1939         if (hapd->conf->wps_nfc_pw_from_config) {
1940                 return wps_nfc_token_build(ndef,
1941                                            hapd->conf->wps_nfc_dev_pw_id,
1942                                            hapd->conf->wps_nfc_dh_pubkey,
1943                                            hapd->conf->wps_nfc_dev_pw);
1944         }
1945
1946         return wps_nfc_token_gen(ndef, &hapd->conf->wps_nfc_dev_pw_id,
1947                                  &hapd->conf->wps_nfc_dh_pubkey,
1948                                  &hapd->conf->wps_nfc_dh_privkey,
1949                                  &hapd->conf->wps_nfc_dev_pw);
1950 }
1951
1952
1953 int hostapd_wps_nfc_token_enable(struct hostapd_data *hapd)
1954 {
1955         struct wps_context *wps = hapd->wps;
1956         struct wpabuf *pw;
1957
1958         if (wps == NULL)
1959                 return -1;
1960
1961         if (!hapd->conf->wps_nfc_dh_pubkey ||
1962             !hapd->conf->wps_nfc_dh_privkey ||
1963             !hapd->conf->wps_nfc_dev_pw ||
1964             !hapd->conf->wps_nfc_dev_pw_id)
1965                 return -1;
1966
1967         hostapd_wps_nfc_clear(wps);
1968         wpa_printf(MSG_DEBUG,
1969                    "WPS: Enable NFC Tag (Dev Pw Id %u) for AP interface %s (context %p)",
1970                    hapd->conf->wps_nfc_dev_pw_id, hapd->conf->iface, wps);
1971         wps->ap_nfc_dev_pw_id = hapd->conf->wps_nfc_dev_pw_id;
1972         wps->ap_nfc_dh_pubkey = wpabuf_dup(hapd->conf->wps_nfc_dh_pubkey);
1973         wps->ap_nfc_dh_privkey = wpabuf_dup(hapd->conf->wps_nfc_dh_privkey);
1974         pw = hapd->conf->wps_nfc_dev_pw;
1975         wps->ap_nfc_dev_pw = wpabuf_alloc(
1976                 wpabuf_len(pw) * 2 + 1);
1977         if (wps->ap_nfc_dev_pw) {
1978                 wpa_snprintf_hex_uppercase(
1979                         (char *) wpabuf_put(wps->ap_nfc_dev_pw,
1980                                             wpabuf_len(pw) * 2),
1981                         wpabuf_len(pw) * 2 + 1,
1982                         wpabuf_head(pw), wpabuf_len(pw));
1983         }
1984
1985         if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey ||
1986             !wps->ap_nfc_dev_pw) {
1987                 hostapd_wps_nfc_clear(wps);
1988                 return -1;
1989         }
1990
1991         return 0;
1992 }
1993
1994
1995 void hostapd_wps_nfc_token_disable(struct hostapd_data *hapd)
1996 {
1997         wpa_printf(MSG_DEBUG, "WPS: Disable NFC token for AP interface %s",
1998                    hapd->conf->iface);
1999         hostapd_wps_nfc_clear(hapd->wps);
2000 }
2001
2002 #endif /* CONFIG_WPS_NFC */