wpa_supplicant/ap.c

   1 /*
   2  * WPA Supplicant - Basic AP mode support routines
   3  * Copyright (c) 2003-2009, Jouni Malinen <j@w1.fi>
   4  * Copyright (c) 2009, Atheros Communications
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * Alternatively, this software may be distributed under the terms of BSD
  11  * license.
  12  *
  13  * See README and COPYING for more details.
  14  */
  15
  16 #include "includes.h"
  17
  18 #include "common.h"
  19 #include "ap/hostapd.h"
  20 #include "ap/config.h"
  21 #ifdef NEED_AP_MLME
  22 #include "ap/ieee802_11.h"
  23 #endif /* NEED_AP_MLME */
  24 #include "ap/wps_hostapd.h"
  25 #include "../hostapd/ctrl_iface_ap.h"
  26 #include "eap_common/eap_defs.h"
  27 #include "eap_server/eap_methods.h"
  28 #include "eap_common/eap_wsc_common.h"
  29 #include "wps/wps.h"
  30 #include "config_ssid.h"
  31 #include "config.h"
  32 #include "wpa_supplicant_i.h"
  33 #include "driver_i.h"
  34 #include "ap.h"
  35
  36
  37 struct hapd_interfaces {
  38         size_t count;
  39         struct hostapd_iface **iface;
  40 };
  41
  42
  43 int hostapd_for_each_interface(struct hapd_interfaces *interfaces,
  44                                int (*cb)(struct hostapd_iface *iface,
  45                                          void *ctx), void *ctx)
  46 {
  47         /* TODO */
  48         return 0;
  49 }
  50
  51
  52 int hostapd_ctrl_iface_init(struct hostapd_data *hapd)
  53 {
  54         return 0;
  55 }
  56
  57
  58 void hostapd_ctrl_iface_deinit(struct hostapd_data *hapd)
  59 {
  60 }
  61
  62
  63 struct ap_driver_data {
  64         struct hostapd_data *hapd;
  65 };
  66
  67
  68 static void * ap_driver_init(struct hostapd_data *hapd,
  69                              struct wpa_init_params *params)
  70 {
  71         struct ap_driver_data *drv;
  72         struct wpa_supplicant *wpa_s = hapd->iface->owner;
  73
  74         drv = os_zalloc(sizeof(struct ap_driver_data));
  75         if (drv == NULL) {
  76                 wpa_printf(MSG_ERROR, "Could not allocate memory for AP "
  77                            "driver data");
  78                 return NULL;
  79         }
  80         drv->hapd = hapd;
  81         os_memcpy(hapd->own_addr, wpa_s->own_addr, ETH_ALEN);
  82
  83         return drv;
  84 }
  85
  86
  87 static void ap_driver_deinit(void *priv)
  88 {
  89         struct ap_driver_data *drv = priv;
  90
  91         os_free(drv);
  92 }
  93
  94
  95 static int ap_driver_send_ether(void *priv, const u8 *dst, const u8 *src,
  96                                 u16 proto, const u8 *data, size_t data_len)
  97 {
  98         wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
  99         return -1;
 100 }
 101
 102
 103 static int ap_driver_set_key(const char *iface, void *priv, wpa_alg alg,
 104                              const u8 *addr, int key_idx, int set_tx,
 105                              const u8 *seq, size_t seq_len, const u8 *key,
 106                              size_t key_len)
 107 {
 108         struct ap_driver_data *drv = priv;
 109         struct wpa_supplicant *wpa_s = drv->hapd->iface->owner;
 110         return wpa_drv_set_key(wpa_s, alg, addr, key_idx, set_tx, seq, seq_len,
 111                                key, key_len);
 112 }
 113
 114
 115 static int ap_driver_get_seqnum(const char *iface, void *priv, const u8 *addr,
 116                                 int idx, u8 *seq)
 117 {
 118         wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
 119         return -1;
 120 }
 121
 122
 123 static int ap_driver_flush(void *priv)
 124 {
 125         wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
 126         return -1;
 127 }
 128
 129
 130 static int ap_driver_read_sta_data(void *priv,
 131                                    struct hostap_sta_driver_data *data,
 132                                    const u8 *addr)
 133 {
 134         wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
 135         return -1;
 136 }
 137
 138
 139 static int ap_driver_sta_set_flags(void *priv, const u8 *addr, int total_flags,
 140                                    int flags_or, int flags_and)
 141 {
 142         struct ap_driver_data *drv = priv;
 143         struct wpa_supplicant *wpa_s = drv->hapd->iface->owner;
 144         return wpa_drv_sta_set_flags(wpa_s, addr, total_flags, flags_or,
 145                                      flags_and);
 146 }
 147
 148
 149 static int ap_driver_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
 150                                 int reason)
 151 {
 152         wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
 153         return -1;
 154 }
 155
 156
 157 static int ap_driver_sta_disassoc(void *priv, const u8 *own_addr,
 158                                   const u8 *addr, int reason)
 159 {
 160         wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
 161         return -1;
 162 }
 163
 164
 165 static int ap_driver_sta_remove(void *priv, const u8 *addr)
 166 {
 167         struct ap_driver_data *drv = priv;
 168         struct wpa_supplicant *wpa_s = drv->hapd->iface->owner;
 169         return wpa_drv_sta_remove(wpa_s, addr);
 170 }
 171
 172
 173 static int ap_driver_send_mlme(void *priv, const u8 *data, size_t len)
 174 {
 175         struct ap_driver_data *drv = priv;
 176         struct wpa_supplicant *wpa_s = drv->hapd->iface->owner;
 177         return wpa_drv_send_mlme(wpa_s, data, len);
 178 }
 179
 180
 181 static int ap_driver_sta_add(const char *ifname, void *priv,
 182                              struct hostapd_sta_add_params *params)
 183 {
 184         struct ap_driver_data *drv = priv;
 185         struct wpa_supplicant *wpa_s = drv->hapd->iface->owner;
 186         return wpa_drv_sta_add(wpa_s, params);
 187 }
 188
 189
 190 static int ap_driver_get_inact_sec(void *priv, const u8 *addr)
 191 {
 192         wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
 193         return -1;
 194 }
 195
 196
 197 static int ap_driver_set_freq(void *priv, struct hostapd_freq_params *freq)
 198 {
 199         wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
 200         return 0;
 201 }
 202
 203
 204 static int ap_driver_set_beacon(const char *iface, void *priv,
 205                                 const u8 *head, size_t head_len,
 206                                 const u8 *tail, size_t tail_len,
 207                                 int dtim_period, int beacon_int)
 208 {
 209         struct ap_driver_data *drv = priv;
 210         struct wpa_supplicant *wpa_s = drv->hapd->iface->owner;
 211         return wpa_drv_set_beacon(wpa_s, head, head_len, tail, tail_len,
 212                                   dtim_period, beacon_int);
 213 }
 214
 215
 216 static int ap_driver_set_cts_protect(void *priv, int value)
 217 {
 218         wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
 219         return -1;
 220 }
 221
 222
 223 static int ap_driver_set_preamble(void *priv, int value)
 224 {
 225         wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
 226         return -1;
 227 }
 228
 229
 230 static int ap_driver_set_short_slot_time(void *priv, int value)
 231 {
 232         wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
 233         return -1;
 234 }
 235
 236
 237 static int ap_driver_set_tx_queue_params(void *priv, int queue, int aifs,
 238                                          int cw_min, int cw_max,
 239                                          int burst_time)
 240 {
 241         wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
 242         return -1;
 243 }
 244
 245
 246 static struct hostapd_hw_modes *ap_driver_get_hw_feature_data(void *priv,
 247                                                               u16 *num_modes,
 248                                                               u16 *flags)
 249 {
 250         struct ap_driver_data *drv = priv;
 251         struct wpa_supplicant *wpa_s = drv->hapd->iface->owner;
 252         return wpa_drv_get_hw_feature_data(wpa_s, num_modes, flags);
 253 }
 254
 255
 256 static int ap_driver_hapd_send_eapol(void *priv, const u8 *addr,
 257                                      const u8 *data, size_t data_len,
 258                                      int encrypt, const u8 *own_addr)
 259 {
 260         struct ap_driver_data *drv = priv;
 261         struct wpa_supplicant *wpa_s = drv->hapd->iface->owner;
 262         return wpa_drv_hapd_send_eapol(wpa_s, addr, data, data_len, encrypt,
 263                                        own_addr);
 264 }
 265
 266
 267 struct wpa_driver_ops ap_driver_ops =
 268 {
 269         .name = "wpa_supplicant",
 270         .hapd_init = ap_driver_init,
 271         .hapd_deinit = ap_driver_deinit,
 272         .send_ether = ap_driver_send_ether,
 273         .set_key = ap_driver_set_key,
 274         .get_seqnum = ap_driver_get_seqnum,
 275         .flush = ap_driver_flush,
 276         .read_sta_data = ap_driver_read_sta_data,
 277         .sta_set_flags = ap_driver_sta_set_flags,
 278         .sta_deauth = ap_driver_sta_deauth,
 279         .sta_disassoc = ap_driver_sta_disassoc,
 280         .sta_remove = ap_driver_sta_remove,
 281         .send_mlme = ap_driver_send_mlme,
 282         .sta_add = ap_driver_sta_add,
 283         .get_inact_sec = ap_driver_get_inact_sec,
 284         .set_freq = ap_driver_set_freq,
 285         .set_beacon = ap_driver_set_beacon,
 286         .set_cts_protect = ap_driver_set_cts_protect,
 287         .set_preamble = ap_driver_set_preamble,
 288         .set_short_slot_time = ap_driver_set_short_slot_time,
 289         .set_tx_queue_params = ap_driver_set_tx_queue_params,
 290         .get_hw_feature_data = ap_driver_get_hw_feature_data,
 291         .hapd_send_eapol = ap_driver_hapd_send_eapol,
 292 };
 293
 294
 295 extern struct wpa_driver_ops *wpa_drivers[];
 296
 297 static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s,
 298                                   struct wpa_ssid *ssid,
 299                                   struct hostapd_config *conf)
 300 {
 301         struct hostapd_bss_config *bss = &conf->bss[0];
 302         int j, pairwise;
 303
 304         for (j = 0; wpa_drivers[j]; j++) {
 305                 if (os_strcmp("wpa_supplicant", wpa_drivers[j]->name) == 0) {
 306                         conf->driver = wpa_drivers[j];
 307                         break;
 308                 }
 309         }
 310         if (conf->driver == NULL) {
 311                 wpa_printf(MSG_ERROR, "No AP driver ops found");
 312                 return -1;
 313         }
 314
 315         os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface));
 316
 317         if (ssid->frequency == 0) {
 318                 /* default channel 11 */
 319                 conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
 320                 conf->channel = 11;
 321         } else if (ssid->frequency >= 2412 && ssid->frequency <= 2472) {
 322                 conf->hw_mode = HOSTAPD_MODE_IEEE80211G;
 323                 conf->channel = (ssid->frequency - 2407) / 5;
 324         } else if ((ssid->frequency >= 5180 && ssid->frequency <= 5240) ||
 325                    (ssid->frequency >= 5745 && ssid->frequency <= 5825)) {
 326                 conf->hw_mode = HOSTAPD_MODE_IEEE80211A;
 327                 conf->channel = (ssid->frequency - 5000) / 5;
 328         } else {
 329                 wpa_printf(MSG_ERROR, "Unsupported AP mode frequency: %d MHz",
 330                            ssid->frequency);
 331                 return -1;
 332         }
 333
 334         /* TODO: enable HT if driver supports it;
 335          * drop to 11b if driver does not support 11g */
 336
 337         if (ssid->ssid_len == 0) {
 338                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 339                 return -1;
 340         }
 341         os_memcpy(bss->ssid.ssid, ssid->ssid, ssid->ssid_len);
 342         bss->ssid.ssid[ssid->ssid_len] = '\0';
 343         bss->ssid.ssid_len = ssid->ssid_len;
 344         bss->ssid.ssid_set = 1;
 345
 346         if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt))
 347                 bss->wpa = ssid->proto;
 348         bss->wpa_key_mgmt = ssid->key_mgmt;
 349         bss->wpa_pairwise = ssid->pairwise_cipher;
 350         if (ssid->passphrase) {
 351                 bss->ssid.wpa_passphrase = os_strdup(ssid->passphrase);
 352         } else if (ssid->psk_set) {
 353                 os_free(bss->ssid.wpa_psk);
 354                 bss->ssid.wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
 355                 if (bss->ssid.wpa_psk == NULL)
 356                         return -1;
 357                 os_memcpy(bss->ssid.wpa_psk->psk, ssid->psk, PMK_LEN);
 358                 bss->ssid.wpa_psk->group = 1;
 359         }
 360
 361         /* Select group cipher based on the enabled pairwise cipher suites */
 362         pairwise = 0;
 363         if (bss->wpa & 1)
 364                 pairwise |= bss->wpa_pairwise;
 365         if (bss->wpa & 2) {
 366                 if (bss->rsn_pairwise == 0)
 367                         bss->rsn_pairwise = bss->wpa_pairwise;
 368                 pairwise |= bss->rsn_pairwise;
 369         }
 370         if (pairwise & WPA_CIPHER_TKIP)
 371                 bss->wpa_group = WPA_CIPHER_TKIP;
 372         else
 373                 bss->wpa_group = WPA_CIPHER_CCMP;
 374
 375         if (bss->wpa && bss->ieee802_1x)
 376                 bss->ssid.security_policy = SECURITY_WPA;
 377         else if (bss->wpa)
 378                 bss->ssid.security_policy = SECURITY_WPA_PSK;
 379         else if (bss->ieee802_1x) {
 380                 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
 381                 bss->ssid.wep.default_len = bss->default_wep_key_len;
 382         } else if (bss->ssid.wep.keys_set)
 383                 bss->ssid.security_policy = SECURITY_STATIC_WEP;
 384         else
 385                 bss->ssid.security_policy = SECURITY_PLAINTEXT;
 386
 387 #ifdef CONFIG_WPS
 388         /*
 389          * Enable WPS by default, but require user interaction to actually use
 390          * it. Only the internal Registrar is supported.
 391          */
 392         bss->eap_server = 1;
 393         bss->wps_state = 2;
 394         bss->ap_setup_locked = 1;
 395         if (wpa_s->conf->config_methods)
 396                 bss->config_methods = os_strdup(wpa_s->conf->config_methods);
 397         if (wpa_s->conf->device_type)
 398                 bss->device_type = os_strdup(wpa_s->conf->device_type);
 399 #endif /* CONFIG_WPS */
 400
 401         return 0;
 402 }
 403
 404
 405 int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
 406                              struct wpa_ssid *ssid)
 407 {
 408         struct wpa_driver_associate_params params;
 409         struct hostapd_iface *hapd_iface;
 410         struct hostapd_config *conf;
 411         size_t i;
 412
 413         if (ssid->ssid == NULL || ssid->ssid_len == 0) {
 414                 wpa_printf(MSG_ERROR, "No SSID configured for AP mode");
 415                 return -1;
 416         }
 417
 418         wpa_supplicant_ap_deinit(wpa_s);
 419
 420         wpa_printf(MSG_DEBUG, "Setting up AP (SSID='%s')",
 421                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
 422
 423         os_memset(&params, 0, sizeof(params));
 424         params.ssid = ssid->ssid;
 425         params.ssid_len = ssid->ssid_len;
 426         params.mode = ssid->mode;
 427         params.freq = ssid->frequency;
 428
 429         if (wpa_drv_associate(wpa_s, &params) < 0) {
 430                 wpa_msg(wpa_s, MSG_INFO, "Failed to start AP functionality");
 431                 return -1;
 432         }
 433
 434         wpa_s->ap_iface = hapd_iface = os_zalloc(sizeof(*wpa_s->ap_iface));
 435         if (hapd_iface == NULL)
 436                 return -1;
 437         hapd_iface->owner = wpa_s;
 438
 439         wpa_s->ap_iface->conf = conf = hostapd_config_defaults();
 440         if (conf == NULL) {
 441                 wpa_supplicant_ap_deinit(wpa_s);
 442                 return -1;
 443         }
 444
 445         if (wpa_supplicant_conf_ap(wpa_s, ssid, conf)) {
 446                 wpa_printf(MSG_ERROR, "Failed to create AP configuration");
 447                 wpa_supplicant_ap_deinit(wpa_s);
 448                 return -1;
 449         }
 450
 451         hapd_iface->num_bss = conf->num_bss;
 452         hapd_iface->bss = os_zalloc(conf->num_bss *
 453                                     sizeof(struct hostapd_data *));
 454         if (hapd_iface->bss == NULL) {
 455                 wpa_supplicant_ap_deinit(wpa_s);
 456                 return -1;
 457         }
 458
 459         for (i = 0; i < conf->num_bss; i++) {
 460                 hapd_iface->bss[i] =
 461                         hostapd_alloc_bss_data(hapd_iface, conf,
 462                                                &conf->bss[i]);
 463                 if (hapd_iface->bss[i] == NULL) {
 464                         wpa_supplicant_ap_deinit(wpa_s);
 465                         return -1;
 466                 }
 467
 468                 hapd_iface->bss[i]->msg_ctx = wpa_s;
 469         }
 470
 471         if (hostapd_setup_interface(wpa_s->ap_iface)) {
 472                 wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
 473                 wpa_supplicant_ap_deinit(wpa_s);
 474                 return -1;
 475         }
 476
 477         wpa_s->current_ssid = ssid;
 478         os_memcpy(wpa_s->bssid, wpa_s->own_addr, ETH_ALEN);
 479         wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 480
 481         return 0;
 482 }
 483
 484
 485 void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
 486 {
 487         if (wpa_s->ap_iface == NULL)
 488                 return;
 489
 490         hostapd_interface_deinit(wpa_s->ap_iface);
 491         wpa_s->ap_iface = NULL;
 492 }
 493
 494
 495 void ap_tx_status(void *ctx, const u8 *addr,
 496                   const u8 *buf, size_t len, int ack)
 497 {
 498 #ifdef NEED_AP_MLME
 499         struct wpa_supplicant *wpa_s = ctx;
 500         hostapd_tx_status(wpa_s->ap_iface->bss[0], addr, buf, len, ack);
 501 #endif /* NEED_AP_MLME */
 502 }
 503
 504
 505 void ap_rx_from_unknown_sta(void *ctx, const struct ieee80211_hdr *hdr,
 506                             size_t len)
 507 {
 508 #ifdef NEED_AP_MLME
 509         struct wpa_supplicant *wpa_s = ctx;
 510         u16 fc = le_to_host16(hdr->frame_control);
 511         ieee802_11_rx_from_unknown(wpa_s->ap_iface->bss[0], hdr->addr2,
 512                                    (fc & (WLAN_FC_TODS | WLAN_FC_FROMDS)) ==
 513                                    (WLAN_FC_TODS | WLAN_FC_FROMDS));
 514 #endif /* NEED_AP_MLME */
 515 }
 516
 517
 518 void ap_mgmt_rx(void *ctx, const u8 *buf, size_t len,
 519                 struct hostapd_frame_info *fi)
 520 {
 521 #ifdef NEED_AP_MLME
 522         struct wpa_supplicant *wpa_s = ctx;
 523         ieee802_11_mgmt(wpa_s->ap_iface->bss[0], buf, len, fi);
 524 #endif /* NEED_AP_MLME */
 525 }
 526
 527
 528 void ap_mgmt_tx_cb(void *ctx, const u8 *buf, size_t len, u16 stype, int ok)
 529 {
 530 #ifdef NEED_AP_MLME
 531         struct wpa_supplicant *wpa_s = ctx;
 532         ieee802_11_mgmt_cb(wpa_s->ap_iface->bss[0], buf, len, stype, ok);
 533 #endif /* NEED_AP_MLME */
 534 }
 535
 536
 537 void wpa_supplicant_ap_rx_eapol(struct wpa_supplicant *wpa_s,
 538                                 const u8 *src_addr, const u8 *buf, size_t len)
 539 {
 540         hostapd_eapol_receive(wpa_s->ap_iface->bss[0], src_addr, buf, len);
 541 }
 542
 543
 544 #ifdef CONFIG_WPS
 545
 546 int wpa_supplicant_ap_wps_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid)
 547 {
 548         return hostapd_wps_button_pushed(wpa_s->ap_iface->bss[0]);
 549 }
 550
 551
 552 int wpa_supplicant_ap_wps_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
 553                               const char *pin, char *buf, size_t buflen)
 554 {
 555         int ret, ret_len = 0;
 556
 557         if (pin == NULL) {
 558                 unsigned int rpin = wps_generate_pin();
 559                 ret_len = os_snprintf(buf, buflen, "%d", rpin);
 560                 pin = buf;
 561         }
 562
 563         ret = hostapd_wps_add_pin(wpa_s->ap_iface->bss[0], "any", pin, 0);
 564         if (ret)
 565                 return -1;
 566         return ret_len;
 567 }
 568
 569 #endif /* CONFIG_WPS */
 570
 571
 572 #ifdef CONFIG_CTRL_IFACE
 573
 574 int ap_ctrl_iface_sta_first(struct wpa_supplicant *wpa_s,
 575                             char *buf, size_t buflen)
 576 {
 577         if (wpa_s->ap_iface == NULL)
 578                 return -1;
 579         return hostapd_ctrl_iface_sta_first(wpa_s->ap_iface->bss[0],
 580                                             buf, buflen);
 581 }
 582
 583
 584 int ap_ctrl_iface_sta(struct wpa_supplicant *wpa_s, const char *txtaddr,
 585                       char *buf, size_t buflen)
 586 {
 587         if (wpa_s->ap_iface == NULL)
 588                 return -1;
 589         return hostapd_ctrl_iface_sta(wpa_s->ap_iface->bss[0], txtaddr,
 590                                       buf, buflen);
 591 }
 592
 593
 594 int ap_ctrl_iface_sta_next(struct wpa_supplicant *wpa_s, const char *txtaddr,
 595                            char *buf, size_t buflen)
 596 {
 597         if (wpa_s->ap_iface == NULL)
 598                 return -1;
 599         return hostapd_ctrl_iface_sta_next(wpa_s->ap_iface->bss[0], txtaddr,
 600                                            buf, buflen);
 601 }
 602
 603
 604 int ap_ctrl_iface_wpa_get_status(struct wpa_supplicant *wpa_s, char *buf,
 605                                  size_t buflen, int verbose)
 606 {
 607         char *pos = buf, *end = buf + buflen;
 608         int ret;
 609         struct hostapd_bss_config *conf;
 610
 611         if (wpa_s->ap_iface == NULL)
 612                 return -1;
 613
 614         conf = wpa_s->ap_iface->bss[0]->conf;
 615         if (conf->wpa == 0)
 616                 return 0;
 617
 618         ret = os_snprintf(pos, end - pos,
 619                           "pairwise_cipher=%s\n"
 620                           "group_cipher=%s\n"
 621                           "key_mgmt=%s\n",
 622                           wpa_cipher_txt(conf->rsn_pairwise),
 623                           wpa_cipher_txt(conf->wpa_group),
 624                           wpa_key_mgmt_txt(conf->wpa_key_mgmt,
 625                                            conf->wpa));
 626         if (ret < 0 || ret >= end - pos)
 627                 return pos - buf;
 628         pos += ret;
 629         return pos - buf;
 630 }
 631
 632 #endif /* CONFIG_CTRL_IFACE */