contrib/wpa/src/ap/ap_drv_ops.c

   1 /*
   2  * hostapd - Driver operations
   3  * Copyright (c) 2009-2010, Jouni Malinen <j@w1.fi>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  */
  14
  15 #include "utils/includes.h"
  16
  17 #include "utils/common.h"
  18 #include "drivers/driver.h"
  19 #include "common/ieee802_11_defs.h"
  20 #include "hostapd.h"
  21 #include "ieee802_11.h"
  22 #include "sta_info.h"
  23 #include "ap_config.h"
  24 #include "ap_drv_ops.h"
  25
  26
  27 static int hostapd_sta_flags_to_drv(int flags)
  28 {
  29         int res = 0;
  30         if (flags & WLAN_STA_AUTHORIZED)
  31                 res |= WPA_STA_AUTHORIZED;
  32         if (flags & WLAN_STA_WMM)
  33                 res |= WPA_STA_WMM;
  34         if (flags & WLAN_STA_SHORT_PREAMBLE)
  35                 res |= WPA_STA_SHORT_PREAMBLE;
  36         if (flags & WLAN_STA_MFP)
  37                 res |= WPA_STA_MFP;
  38         return res;
  39 }
  40
  41
  42 static int hostapd_set_ap_wps_ie(struct hostapd_data *hapd)
  43 {
  44         struct wpabuf *beacon, *proberesp;
  45         int ret;
  46
  47         if (hapd->driver == NULL || hapd->driver->set_ap_wps_ie == NULL)
  48                 return 0;
  49
  50         beacon = hapd->wps_beacon_ie;
  51         proberesp = hapd->wps_probe_resp_ie;
  52
  53         ret = hapd->driver->set_ap_wps_ie(hapd->drv_priv, beacon, proberesp);
  54
  55         return ret;
  56 }
  57
  58
  59 static int hostapd_send_mgmt_frame(struct hostapd_data *hapd, const void *msg,
  60                            size_t len)
  61 {
  62         if (hapd->driver == NULL || hapd->driver->send_mlme == NULL)
  63                 return 0;
  64         return hapd->driver->send_mlme(hapd->drv_priv, msg, len);
  65 }
  66
  67
  68 static int hostapd_send_eapol(struct hostapd_data *hapd, const u8 *addr,
  69                               const u8 *data, size_t data_len, int encrypt)
  70 {
  71         if (hapd->driver == NULL || hapd->driver->hapd_send_eapol == NULL)
  72                 return 0;
  73         return hapd->driver->hapd_send_eapol(hapd->drv_priv, addr, data,
  74                                              data_len, encrypt,
  75                                              hapd->own_addr);
  76 }
  77
  78
  79 static int hostapd_set_authorized(struct hostapd_data *hapd,
  80                                   struct sta_info *sta, int authorized)
  81 {
  82         if (authorized) {
  83                 return hostapd_sta_set_flags(hapd, sta->addr,
  84                                              hostapd_sta_flags_to_drv(
  85                                                      sta->flags),
  86                                              WPA_STA_AUTHORIZED, ~0);
  87         }
  88
  89         return hostapd_sta_set_flags(hapd, sta->addr,
  90                                      hostapd_sta_flags_to_drv(sta->flags),
  91                                      0, ~WPA_STA_AUTHORIZED);
  92 }
  93
  94
  95 static int hostapd_set_key(const char *ifname, struct hostapd_data *hapd,
  96                            enum wpa_alg alg, const u8 *addr, int key_idx,
  97                            int set_tx, const u8 *seq, size_t seq_len,
  98                            const u8 *key, size_t key_len)
  99 {
 100         if (hapd->driver == NULL || hapd->driver->set_key == NULL)
 101                 return 0;
 102         return hapd->driver->set_key(ifname, hapd->drv_priv, alg, addr,
 103                                      key_idx, set_tx, seq, seq_len, key,
 104                                      key_len);
 105 }
 106
 107
 108 static int hostapd_read_sta_data(struct hostapd_data *hapd,
 109                                  struct hostap_sta_driver_data *data,
 110                                  const u8 *addr)
 111 {
 112         if (hapd->driver == NULL || hapd->driver->read_sta_data == NULL)
 113                 return -1;
 114         return hapd->driver->read_sta_data(hapd->drv_priv, data, addr);
 115 }
 116
 117
 118 static int hostapd_sta_clear_stats(struct hostapd_data *hapd, const u8 *addr)
 119 {
 120         if (hapd->driver == NULL || hapd->driver->sta_clear_stats == NULL)
 121                 return 0;
 122         return hapd->driver->sta_clear_stats(hapd->drv_priv, addr);
 123 }
 124
 125
 126 static int hostapd_set_sta_flags(struct hostapd_data *hapd,
 127                                  struct sta_info *sta)
 128 {
 129         int set_flags, total_flags, flags_and, flags_or;
 130         total_flags = hostapd_sta_flags_to_drv(sta->flags);
 131         set_flags = WPA_STA_SHORT_PREAMBLE | WPA_STA_WMM | WPA_STA_MFP;
 132         if (((!hapd->conf->ieee802_1x && !hapd->conf->wpa) ||
 133              sta->auth_alg == WLAN_AUTH_FT) &&
 134             sta->flags & WLAN_STA_AUTHORIZED)
 135                 set_flags |= WPA_STA_AUTHORIZED;
 136         flags_or = total_flags & set_flags;
 137         flags_and = total_flags | ~set_flags;
 138         return hostapd_sta_set_flags(hapd, sta->addr, total_flags,
 139                                      flags_or, flags_and);
 140 }
 141
 142
 143 static int hostapd_set_drv_ieee8021x(struct hostapd_data *hapd,
 144                                      const char *ifname, int enabled)
 145 {
 146         struct wpa_bss_params params;
 147         os_memset(&params, 0, sizeof(params));
 148         params.ifname = ifname;
 149         params.enabled = enabled;
 150         if (enabled) {
 151                 params.wpa = hapd->conf->wpa;
 152                 params.ieee802_1x = hapd->conf->ieee802_1x;
 153                 params.wpa_group = hapd->conf->wpa_group;
 154                 params.wpa_pairwise = hapd->conf->wpa_pairwise;
 155                 params.wpa_key_mgmt = hapd->conf->wpa_key_mgmt;
 156                 params.rsn_preauth = hapd->conf->rsn_preauth;
 157         }
 158         return hostapd_set_ieee8021x(hapd, &params);
 159 }
 160
 161
 162 static int hostapd_set_radius_acl_auth(struct hostapd_data *hapd,
 163                                        const u8 *mac, int accepted,
 164                                        u32 session_timeout)
 165 {
 166         if (hapd->driver == NULL || hapd->driver->set_radius_acl_auth == NULL)
 167                 return 0;
 168         return hapd->driver->set_radius_acl_auth(hapd->drv_priv, mac, accepted,
 169                                                  session_timeout);
 170 }
 171
 172
 173 static int hostapd_set_radius_acl_expire(struct hostapd_data *hapd,
 174                                          const u8 *mac)
 175 {
 176         if (hapd->driver == NULL ||
 177             hapd->driver->set_radius_acl_expire == NULL)
 178                 return 0;
 179         return hapd->driver->set_radius_acl_expire(hapd->drv_priv, mac);
 180 }
 181
 182
 183 static int hostapd_set_bss_params(struct hostapd_data *hapd,
 184                                   int use_protection)
 185 {
 186         int ret = 0;
 187         int preamble;
 188 #ifdef CONFIG_IEEE80211N
 189         u8 buf[60], *ht_capab, *ht_oper, *pos;
 190
 191         pos = buf;
 192         ht_capab = pos;
 193         pos = hostapd_eid_ht_capabilities(hapd, pos);
 194         ht_oper = pos;
 195         pos = hostapd_eid_ht_operation(hapd, pos);
 196         if (pos > ht_oper && ht_oper > ht_capab &&
 197             hostapd_set_ht_params(hapd, ht_capab + 2, ht_capab[1],
 198                                   ht_oper + 2, ht_oper[1])) {
 199                 wpa_printf(MSG_ERROR, "Could not set HT capabilities "
 200                            "for kernel driver");
 201                 ret = -1;
 202         }
 203
 204 #endif /* CONFIG_IEEE80211N */
 205
 206         if (hostapd_set_cts_protect(hapd, use_protection)) {
 207                 wpa_printf(MSG_ERROR, "Failed to set CTS protect in kernel "
 208                            "driver");
 209                 ret = -1;
 210         }
 211
 212         if (hapd->iface->current_mode &&
 213             hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G &&
 214             hostapd_set_short_slot_time(hapd,
 215                                         hapd->iface->num_sta_no_short_slot_time
 216                                         > 0 ? 0 : 1)) {
 217                 wpa_printf(MSG_ERROR, "Failed to set Short Slot Time option "
 218                            "in kernel driver");
 219                 ret = -1;
 220         }
 221
 222         if (hapd->iface->num_sta_no_short_preamble == 0 &&
 223             hapd->iconf->preamble == SHORT_PREAMBLE)
 224                 preamble = SHORT_PREAMBLE;
 225         else
 226                 preamble = LONG_PREAMBLE;
 227         if (hostapd_set_preamble(hapd, preamble)) {
 228                 wpa_printf(MSG_ERROR, "Could not set preamble for kernel "
 229                            "driver");
 230                 ret = -1;
 231         }
 232
 233         return ret;
 234 }
 235
 236
 237 static int hostapd_set_beacon(struct hostapd_data *hapd,
 238                               const u8 *head, size_t head_len,
 239                               const u8 *tail, size_t tail_len, int dtim_period,
 240                               int beacon_int)
 241 {
 242         if (hapd->driver == NULL || hapd->driver->set_beacon == NULL)
 243                 return 0;
 244         return hapd->driver->set_beacon(hapd->drv_priv,
 245                                         head, head_len, tail, tail_len,
 246                                         dtim_period, beacon_int);
 247 }
 248
 249
 250 static int hostapd_vlan_if_add(struct hostapd_data *hapd, const char *ifname)
 251 {
 252         char force_ifname[IFNAMSIZ];
 253         u8 if_addr[ETH_ALEN];
 254         return hostapd_if_add(hapd, WPA_IF_AP_VLAN, ifname, NULL, NULL, NULL,
 255                               force_ifname, if_addr);
 256 }
 257
 258 static int hostapd_vlan_if_remove(struct hostapd_data *hapd,
 259                                   const char *ifname)
 260 {
 261         return hostapd_if_remove(hapd, WPA_IF_AP_VLAN, ifname);
 262 }
 263
 264
 265 static int hostapd_set_wds_sta(struct hostapd_data *hapd, const u8 *addr,
 266                                int aid, int val)
 267 {
 268         if (hapd->driver == NULL || hapd->driver->set_wds_sta == NULL)
 269                 return 0;
 270         return hapd->driver->set_wds_sta(hapd->drv_priv, addr, aid, val);
 271 }
 272
 273
 274 static int hostapd_set_sta_vlan(const char *ifname, struct hostapd_data *hapd,
 275                                 const u8 *addr, int vlan_id)
 276 {
 277         if (hapd->driver == NULL || hapd->driver->set_sta_vlan == NULL)
 278                 return 0;
 279         return hapd->driver->set_sta_vlan(hapd->drv_priv, addr, ifname,
 280                                           vlan_id);
 281 }
 282
 283
 284 static int hostapd_get_inact_sec(struct hostapd_data *hapd, const u8 *addr)
 285 {
 286         if (hapd->driver == NULL || hapd->driver->get_inact_sec == NULL)
 287                 return 0;
 288         return hapd->driver->get_inact_sec(hapd->drv_priv, addr);
 289 }
 290
 291
 292 static int hostapd_sta_deauth(struct hostapd_data *hapd, const u8 *addr,
 293                               int reason)
 294 {
 295         if (hapd->driver == NULL || hapd->driver->sta_deauth == NULL)
 296                 return 0;
 297         return hapd->driver->sta_deauth(hapd->drv_priv, hapd->own_addr, addr,
 298                                         reason);
 299 }
 300
 301
 302 static int hostapd_sta_disassoc(struct hostapd_data *hapd, const u8 *addr,
 303                                 int reason)
 304 {
 305         if (hapd->driver == NULL || hapd->driver->sta_disassoc == NULL)
 306                 return 0;
 307         return hapd->driver->sta_disassoc(hapd->drv_priv, hapd->own_addr, addr,
 308                                           reason);
 309 }
 310
 311
 312 static int hostapd_sta_add(struct hostapd_data *hapd,
 313                            const u8 *addr, u16 aid, u16 capability,
 314                            const u8 *supp_rates, size_t supp_rates_len,
 315                            u16 listen_interval,
 316                            const struct ieee80211_ht_capabilities *ht_capab)
 317 {
 318         struct hostapd_sta_add_params params;
 319
 320         if (hapd->driver == NULL)
 321                 return 0;
 322         if (hapd->driver->sta_add == NULL)
 323                 return 0;
 324
 325         os_memset(&params, 0, sizeof(params));
 326         params.addr = addr;
 327         params.aid = aid;
 328         params.capability = capability;
 329         params.supp_rates = supp_rates;
 330         params.supp_rates_len = supp_rates_len;
 331         params.listen_interval = listen_interval;
 332         params.ht_capabilities = ht_capab;
 333         return hapd->driver->sta_add(hapd->drv_priv, &params);
 334 }
 335
 336
 337 static int hostapd_sta_remove(struct hostapd_data *hapd, const u8 *addr)
 338 {
 339         if (hapd->driver == NULL || hapd->driver->sta_remove == NULL)
 340                 return 0;
 341         return hapd->driver->sta_remove(hapd->drv_priv, addr);
 342 }
 343
 344
 345 static int hostapd_set_countermeasures(struct hostapd_data *hapd, int enabled)
 346 {
 347         if (hapd->driver == NULL ||
 348             hapd->driver->hapd_set_countermeasures == NULL)
 349                 return 0;
 350         return hapd->driver->hapd_set_countermeasures(hapd->drv_priv, enabled);
 351 }
 352
 353
 354 void hostapd_set_driver_ops(struct hostapd_driver_ops *ops)
 355 {
 356         ops->set_ap_wps_ie = hostapd_set_ap_wps_ie;
 357         ops->send_mgmt_frame = hostapd_send_mgmt_frame;
 358         ops->send_eapol = hostapd_send_eapol;
 359         ops->set_authorized = hostapd_set_authorized;
 360         ops->set_key = hostapd_set_key;
 361         ops->read_sta_data = hostapd_read_sta_data;
 362         ops->sta_clear_stats = hostapd_sta_clear_stats;
 363         ops->set_sta_flags = hostapd_set_sta_flags;
 364         ops->set_drv_ieee8021x = hostapd_set_drv_ieee8021x;
 365         ops->set_radius_acl_auth = hostapd_set_radius_acl_auth;
 366         ops->set_radius_acl_expire = hostapd_set_radius_acl_expire;
 367         ops->set_bss_params = hostapd_set_bss_params;
 368         ops->set_beacon = hostapd_set_beacon;
 369         ops->vlan_if_add = hostapd_vlan_if_add;
 370         ops->vlan_if_remove = hostapd_vlan_if_remove;
 371         ops->set_wds_sta = hostapd_set_wds_sta;
 372         ops->set_sta_vlan = hostapd_set_sta_vlan;
 373         ops->get_inact_sec = hostapd_get_inact_sec;
 374         ops->sta_deauth = hostapd_sta_deauth;
 375         ops->sta_disassoc = hostapd_sta_disassoc;
 376         ops->sta_add = hostapd_sta_add;
 377         ops->sta_remove = hostapd_sta_remove;
 378         ops->set_countermeasures = hostapd_set_countermeasures;
 379 }
 380
 381
 382 int hostapd_set_privacy(struct hostapd_data *hapd, int enabled)
 383 {
 384         if (hapd->driver == NULL || hapd->driver->set_privacy == NULL)
 385                 return 0;
 386         return hapd->driver->set_privacy(hapd->drv_priv, enabled);
 387 }
 388
 389
 390 int hostapd_set_generic_elem(struct hostapd_data *hapd, const u8 *elem,
 391                              size_t elem_len)
 392 {
 393         if (hapd->driver == NULL || hapd->driver->set_generic_elem == NULL)
 394                 return 0;
 395         return hapd->driver->set_generic_elem(hapd->drv_priv, elem, elem_len);
 396 }
 397
 398
 399 int hostapd_get_ssid(struct hostapd_data *hapd, u8 *buf, size_t len)
 400 {
 401         if (hapd->driver == NULL || hapd->driver->hapd_get_ssid == NULL)
 402                 return 0;
 403         return hapd->driver->hapd_get_ssid(hapd->drv_priv, buf, len);
 404 }
 405
 406
 407 int hostapd_set_ssid(struct hostapd_data *hapd, const u8 *buf, size_t len)
 408 {
 409         if (hapd->driver == NULL || hapd->driver->hapd_set_ssid == NULL)
 410                 return 0;
 411         return hapd->driver->hapd_set_ssid(hapd->drv_priv, buf, len);
 412 }
 413
 414
 415 int hostapd_if_add(struct hostapd_data *hapd, enum wpa_driver_if_type type,
 416                    const char *ifname, const u8 *addr, void *bss_ctx,
 417                    void **drv_priv, char *force_ifname, u8 *if_addr)
 418 {
 419         if (hapd->driver == NULL || hapd->driver->if_add == NULL)
 420                 return -1;
 421         return hapd->driver->if_add(hapd->drv_priv, type, ifname, addr,
 422                                     bss_ctx, drv_priv, force_ifname, if_addr);
 423 }
 424
 425
 426 int hostapd_if_remove(struct hostapd_data *hapd, enum wpa_driver_if_type type,
 427                       const char *ifname)
 428 {
 429         if (hapd->driver == NULL || hapd->driver->if_remove == NULL)
 430                 return -1;
 431         return hapd->driver->if_remove(hapd->drv_priv, type, ifname);
 432 }
 433
 434
 435 int hostapd_set_ieee8021x(struct hostapd_data *hapd,
 436                           struct wpa_bss_params *params)
 437 {
 438         if (hapd->driver == NULL || hapd->driver->set_ieee8021x == NULL)
 439                 return 0;
 440         return hapd->driver->set_ieee8021x(hapd->drv_priv, params);
 441 }
 442
 443
 444 int hostapd_get_seqnum(const char *ifname, struct hostapd_data *hapd,
 445                        const u8 *addr, int idx, u8 *seq)
 446 {
 447         if (hapd->driver == NULL || hapd->driver->get_seqnum == NULL)
 448                 return 0;
 449         return hapd->driver->get_seqnum(ifname, hapd->drv_priv, addr, idx,
 450                                         seq);
 451 }
 452
 453
 454 int hostapd_flush(struct hostapd_data *hapd)
 455 {
 456         if (hapd->driver == NULL || hapd->driver->flush == NULL)
 457                 return 0;
 458         return hapd->driver->flush(hapd->drv_priv);
 459 }
 460
 461
 462 int hostapd_set_freq(struct hostapd_data *hapd, int mode, int freq,
 463                      int channel, int ht_enabled, int sec_channel_offset)
 464 {
 465         struct hostapd_freq_params data;
 466         if (hapd->driver == NULL)
 467                 return 0;
 468         if (hapd->driver->set_freq == NULL)
 469                 return 0;
 470         os_memset(&data, 0, sizeof(data));
 471         data.mode = mode;
 472         data.freq = freq;
 473         data.channel = channel;
 474         data.ht_enabled = ht_enabled;
 475         data.sec_channel_offset = sec_channel_offset;
 476         return hapd->driver->set_freq(hapd->drv_priv, &data);
 477 }
 478
 479 int hostapd_set_rts(struct hostapd_data *hapd, int rts)
 480 {
 481         if (hapd->driver == NULL || hapd->driver->set_rts == NULL)
 482                 return 0;
 483         return hapd->driver->set_rts(hapd->drv_priv, rts);
 484 }
 485
 486
 487 int hostapd_set_frag(struct hostapd_data *hapd, int frag)
 488 {
 489         if (hapd->driver == NULL || hapd->driver->set_frag == NULL)
 490                 return 0;
 491         return hapd->driver->set_frag(hapd->drv_priv, frag);
 492 }
 493
 494
 495 int hostapd_sta_set_flags(struct hostapd_data *hapd, u8 *addr,
 496                           int total_flags, int flags_or, int flags_and)
 497 {
 498         if (hapd->driver == NULL || hapd->driver->sta_set_flags == NULL)
 499                 return 0;
 500         return hapd->driver->sta_set_flags(hapd->drv_priv, addr, total_flags,
 501                                            flags_or, flags_and);
 502 }
 503
 504
 505 int hostapd_set_rate_sets(struct hostapd_data *hapd, int *supp_rates,
 506                           int *basic_rates, int mode)
 507 {
 508         if (hapd->driver == NULL || hapd->driver->set_rate_sets == NULL)
 509                 return 0;
 510         return hapd->driver->set_rate_sets(hapd->drv_priv, supp_rates,
 511                                            basic_rates, mode);
 512 }
 513
 514
 515 int hostapd_set_country(struct hostapd_data *hapd, const char *country)
 516 {
 517         if (hapd->driver == NULL ||
 518             hapd->driver->set_country == NULL)
 519                 return 0;
 520         return hapd->driver->set_country(hapd->drv_priv, country);
 521 }
 522
 523
 524 int hostapd_set_cts_protect(struct hostapd_data *hapd, int value)
 525 {
 526         if (hapd->driver == NULL || hapd->driver->set_cts_protect == NULL)
 527                 return 0;
 528         return hapd->driver->set_cts_protect(hapd->drv_priv, value);
 529 }
 530
 531
 532 int hostapd_set_preamble(struct hostapd_data *hapd, int value)
 533 {
 534         if (hapd->driver == NULL || hapd->driver->set_preamble == NULL)
 535                 return 0;
 536         return hapd->driver->set_preamble(hapd->drv_priv, value);
 537 }
 538
 539
 540 int hostapd_set_short_slot_time(struct hostapd_data *hapd, int value)
 541 {
 542         if (hapd->driver == NULL || hapd->driver->set_short_slot_time == NULL)
 543                 return 0;
 544         return hapd->driver->set_short_slot_time(hapd->drv_priv, value);
 545 }
 546
 547
 548 int hostapd_set_tx_queue_params(struct hostapd_data *hapd, int queue, int aifs,
 549                                 int cw_min, int cw_max, int burst_time)
 550 {
 551         if (hapd->driver == NULL || hapd->driver->set_tx_queue_params == NULL)
 552                 return 0;
 553         return hapd->driver->set_tx_queue_params(hapd->drv_priv, queue, aifs,
 554                                                  cw_min, cw_max, burst_time);
 555 }
 556
 557
 558 int hostapd_valid_bss_mask(struct hostapd_data *hapd, const u8 *addr,
 559                            const u8 *mask)
 560 {
 561         if (hapd->driver == NULL || hapd->driver->valid_bss_mask == NULL)
 562                 return 1;
 563         return hapd->driver->valid_bss_mask(hapd->drv_priv, addr, mask);
 564 }
 565
 566
 567 struct hostapd_hw_modes *
 568 hostapd_get_hw_feature_data(struct hostapd_data *hapd, u16 *num_modes,
 569                             u16 *flags)
 570 {
 571         if (hapd->driver == NULL ||
 572             hapd->driver->get_hw_feature_data == NULL)
 573                 return NULL;
 574         return hapd->driver->get_hw_feature_data(hapd->drv_priv, num_modes,
 575                                                  flags);
 576 }
 577
 578
 579 int hostapd_driver_commit(struct hostapd_data *hapd)
 580 {
 581         if (hapd->driver == NULL || hapd->driver->commit == NULL)
 582                 return 0;
 583         return hapd->driver->commit(hapd->drv_priv);
 584 }
 585
 586
 587 int hostapd_set_ht_params(struct hostapd_data *hapd,
 588                           const u8 *ht_capab, size_t ht_capab_len,
 589                           const u8 *ht_oper, size_t ht_oper_len)
 590 {
 591         if (hapd->driver == NULL || hapd->driver->set_ht_params == NULL ||
 592             ht_capab == NULL || ht_oper == NULL)
 593                 return 0;
 594         return hapd->driver->set_ht_params(hapd->drv_priv,
 595                                            ht_capab, ht_capab_len,
 596                                            ht_oper, ht_oper_len);
 597 }
 598
 599
 600 int hostapd_drv_none(struct hostapd_data *hapd)
 601 {
 602         return hapd->driver && os_strcmp(hapd->driver->name, "none") == 0;
 603 }
 604
 605
 606 int hostapd_driver_scan(struct hostapd_data *hapd,
 607                         struct wpa_driver_scan_params *params)
 608 {
 609         if (hapd->driver && hapd->driver->scan2)
 610                 return hapd->driver->scan2(hapd->drv_priv, params);
 611         return -1;
 612 }
 613
 614
 615 struct wpa_scan_results * hostapd_driver_get_scan_results(
 616         struct hostapd_data *hapd)
 617 {
 618         if (hapd->driver && hapd->driver->get_scan_results2)
 619                 return hapd->driver->get_scan_results2(hapd->drv_priv);
 620         return NULL;
 621 }