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      1 /*
      2  * hostapd - Driver operations
      3  * Copyright (c) 2009-2010, Jouni Malinen <j (at) 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 "drivers/driver.h"
     13 #include "common/ieee802_11_defs.h"
     14 #include "wps/wps.h"
     15 #include "p2p/p2p.h"
     16 #include "hostapd.h"
     17 #include "ieee802_11.h"
     18 #include "sta_info.h"
     19 #include "ap_config.h"
     20 #include "p2p_hostapd.h"
     21 #include "hs20.h"
     22 #include "ap_drv_ops.h"
     23 
     24 
     25 u32 hostapd_sta_flags_to_drv(u32 flags)
     26 {
     27 	int res = 0;
     28 	if (flags & WLAN_STA_AUTHORIZED)
     29 		res |= WPA_STA_AUTHORIZED;
     30 	if (flags & WLAN_STA_WMM)
     31 		res |= WPA_STA_WMM;
     32 	if (flags & WLAN_STA_SHORT_PREAMBLE)
     33 		res |= WPA_STA_SHORT_PREAMBLE;
     34 	if (flags & WLAN_STA_MFP)
     35 		res |= WPA_STA_MFP;
     36 	return res;
     37 }
     38 
     39 
     40 int hostapd_build_ap_extra_ies(struct hostapd_data *hapd,
     41 			       struct wpabuf **beacon_ret,
     42 			       struct wpabuf **proberesp_ret,
     43 			       struct wpabuf **assocresp_ret)
     44 {
     45 	struct wpabuf *beacon = NULL, *proberesp = NULL, *assocresp = NULL;
     46 	u8 buf[200], *pos;
     47 
     48 	*beacon_ret = *proberesp_ret = *assocresp_ret = NULL;
     49 
     50 	pos = buf;
     51 	pos = hostapd_eid_time_adv(hapd, pos);
     52 	if (pos != buf) {
     53 		if (wpabuf_resize(&beacon, pos - buf) != 0)
     54 			goto fail;
     55 		wpabuf_put_data(beacon, buf, pos - buf);
     56 	}
     57 	pos = hostapd_eid_time_zone(hapd, pos);
     58 	if (pos != buf) {
     59 		if (wpabuf_resize(&proberesp, pos - buf) != 0)
     60 			goto fail;
     61 		wpabuf_put_data(proberesp, buf, pos - buf);
     62 	}
     63 
     64 	pos = buf;
     65 	pos = hostapd_eid_ext_capab(hapd, pos);
     66 	if (pos != buf) {
     67 		if (wpabuf_resize(&assocresp, pos - buf) != 0)
     68 			goto fail;
     69 		wpabuf_put_data(assocresp, buf, pos - buf);
     70 	}
     71 	pos = hostapd_eid_interworking(hapd, pos);
     72 	pos = hostapd_eid_adv_proto(hapd, pos);
     73 	pos = hostapd_eid_roaming_consortium(hapd, pos);
     74 	if (pos != buf) {
     75 		if (wpabuf_resize(&beacon, pos - buf) != 0)
     76 			goto fail;
     77 		wpabuf_put_data(beacon, buf, pos - buf);
     78 
     79 		if (wpabuf_resize(&proberesp, pos - buf) != 0)
     80 			goto fail;
     81 		wpabuf_put_data(proberesp, buf, pos - buf);
     82 	}
     83 
     84 	if (hapd->wps_beacon_ie) {
     85 		if (wpabuf_resize(&beacon, wpabuf_len(hapd->wps_beacon_ie)) <
     86 		    0)
     87 			goto fail;
     88 		wpabuf_put_buf(beacon, hapd->wps_beacon_ie);
     89 	}
     90 
     91 	if (hapd->wps_probe_resp_ie) {
     92 		if (wpabuf_resize(&proberesp,
     93 				  wpabuf_len(hapd->wps_probe_resp_ie)) < 0)
     94 			goto fail;
     95 		wpabuf_put_buf(proberesp, hapd->wps_probe_resp_ie);
     96 	}
     97 
     98 #ifdef CONFIG_P2P
     99 	if (hapd->p2p_beacon_ie) {
    100 		if (wpabuf_resize(&beacon, wpabuf_len(hapd->p2p_beacon_ie)) <
    101 		    0)
    102 			goto fail;
    103 		wpabuf_put_buf(beacon, hapd->p2p_beacon_ie);
    104 	}
    105 
    106 	if (hapd->p2p_probe_resp_ie) {
    107 		if (wpabuf_resize(&proberesp,
    108 				  wpabuf_len(hapd->p2p_probe_resp_ie)) < 0)
    109 			goto fail;
    110 		wpabuf_put_buf(proberesp, hapd->p2p_probe_resp_ie);
    111 	}
    112 #endif /* CONFIG_P2P */
    113 
    114 #ifdef CONFIG_P2P_MANAGER
    115 	if (hapd->conf->p2p & P2P_MANAGE) {
    116 		if (wpabuf_resize(&beacon, 100) == 0) {
    117 			u8 *start, *p;
    118 			start = wpabuf_put(beacon, 0);
    119 			p = hostapd_eid_p2p_manage(hapd, start);
    120 			wpabuf_put(beacon, p - start);
    121 		}
    122 
    123 		if (wpabuf_resize(&proberesp, 100) == 0) {
    124 			u8 *start, *p;
    125 			start = wpabuf_put(proberesp, 0);
    126 			p = hostapd_eid_p2p_manage(hapd, start);
    127 			wpabuf_put(proberesp, p - start);
    128 		}
    129 	}
    130 #endif /* CONFIG_P2P_MANAGER */
    131 
    132 #ifdef CONFIG_WPS2
    133 	if (hapd->conf->wps_state) {
    134 		struct wpabuf *a = wps_build_assoc_resp_ie();
    135 		if (a && wpabuf_resize(&assocresp, wpabuf_len(a)) == 0)
    136 			wpabuf_put_buf(assocresp, a);
    137 		wpabuf_free(a);
    138 	}
    139 #endif /* CONFIG_WPS2 */
    140 
    141 #ifdef CONFIG_P2P_MANAGER
    142 	if (hapd->conf->p2p & P2P_MANAGE) {
    143 		if (wpabuf_resize(&assocresp, 100) == 0) {
    144 			u8 *start, *p;
    145 			start = wpabuf_put(assocresp, 0);
    146 			p = hostapd_eid_p2p_manage(hapd, start);
    147 			wpabuf_put(assocresp, p - start);
    148 		}
    149 	}
    150 #endif /* CONFIG_P2P_MANAGER */
    151 
    152 #ifdef CONFIG_WIFI_DISPLAY
    153 	if (hapd->p2p_group) {
    154 		struct wpabuf *a;
    155 		a = p2p_group_assoc_resp_ie(hapd->p2p_group, P2P_SC_SUCCESS);
    156 		if (a && wpabuf_resize(&assocresp, wpabuf_len(a)) == 0)
    157 			wpabuf_put_buf(assocresp, a);
    158 		wpabuf_free(a);
    159 	}
    160 #endif /* CONFIG_WIFI_DISPLAY */
    161 
    162 #ifdef CONFIG_HS20
    163 	pos = buf;
    164 	pos = hostapd_eid_hs20_indication(hapd, pos);
    165 	if (pos != buf) {
    166 		if (wpabuf_resize(&beacon, pos - buf) != 0)
    167 			goto fail;
    168 		wpabuf_put_data(beacon, buf, pos - buf);
    169 
    170 		if (wpabuf_resize(&proberesp, pos - buf) != 0)
    171 			goto fail;
    172 		wpabuf_put_data(proberesp, buf, pos - buf);
    173 	}
    174 #endif /* CONFIG_HS20 */
    175 
    176 	if (hapd->conf->vendor_elements) {
    177 		size_t add = wpabuf_len(hapd->conf->vendor_elements);
    178 		if (wpabuf_resize(&beacon, add) == 0)
    179 			wpabuf_put_buf(beacon, hapd->conf->vendor_elements);
    180 		if (wpabuf_resize(&proberesp, add) == 0)
    181 			wpabuf_put_buf(proberesp, hapd->conf->vendor_elements);
    182 	}
    183 
    184 	*beacon_ret = beacon;
    185 	*proberesp_ret = proberesp;
    186 	*assocresp_ret = assocresp;
    187 
    188 	return 0;
    189 
    190 fail:
    191 	wpabuf_free(beacon);
    192 	wpabuf_free(proberesp);
    193 	wpabuf_free(assocresp);
    194 	return -1;
    195 }
    196 
    197 
    198 void hostapd_free_ap_extra_ies(struct hostapd_data *hapd,
    199 			       struct wpabuf *beacon,
    200 			       struct wpabuf *proberesp,
    201 			       struct wpabuf *assocresp)
    202 {
    203 	wpabuf_free(beacon);
    204 	wpabuf_free(proberesp);
    205 	wpabuf_free(assocresp);
    206 }
    207 
    208 
    209 int hostapd_set_ap_wps_ie(struct hostapd_data *hapd)
    210 {
    211 	struct wpabuf *beacon, *proberesp, *assocresp;
    212 	int ret;
    213 
    214 	if (hapd->driver == NULL || hapd->driver->set_ap_wps_ie == NULL)
    215 		return 0;
    216 
    217 	if (hostapd_build_ap_extra_ies(hapd, &beacon, &proberesp, &assocresp) <
    218 	    0)
    219 		return -1;
    220 
    221 	ret = hapd->driver->set_ap_wps_ie(hapd->drv_priv, beacon, proberesp,
    222 					  assocresp);
    223 
    224 	hostapd_free_ap_extra_ies(hapd, beacon, proberesp, assocresp);
    225 
    226 	return ret;
    227 }
    228 
    229 
    230 int hostapd_set_authorized(struct hostapd_data *hapd,
    231 			   struct sta_info *sta, int authorized)
    232 {
    233 	if (authorized) {
    234 		return hostapd_sta_set_flags(hapd, sta->addr,
    235 					     hostapd_sta_flags_to_drv(
    236 						     sta->flags),
    237 					     WPA_STA_AUTHORIZED, ~0);
    238 	}
    239 
    240 	return hostapd_sta_set_flags(hapd, sta->addr,
    241 				     hostapd_sta_flags_to_drv(sta->flags),
    242 				     0, ~WPA_STA_AUTHORIZED);
    243 }
    244 
    245 
    246 int hostapd_set_sta_flags(struct hostapd_data *hapd, struct sta_info *sta)
    247 {
    248 	int set_flags, total_flags, flags_and, flags_or;
    249 	total_flags = hostapd_sta_flags_to_drv(sta->flags);
    250 	set_flags = WPA_STA_SHORT_PREAMBLE | WPA_STA_WMM | WPA_STA_MFP;
    251 	if (((!hapd->conf->ieee802_1x && !hapd->conf->wpa) ||
    252 	     sta->auth_alg == WLAN_AUTH_FT) &&
    253 	    sta->flags & WLAN_STA_AUTHORIZED)
    254 		set_flags |= WPA_STA_AUTHORIZED;
    255 	flags_or = total_flags & set_flags;
    256 	flags_and = total_flags | ~set_flags;
    257 	return hostapd_sta_set_flags(hapd, sta->addr, total_flags,
    258 				     flags_or, flags_and);
    259 }
    260 
    261 
    262 int hostapd_set_drv_ieee8021x(struct hostapd_data *hapd, const char *ifname,
    263 			      int enabled)
    264 {
    265 	struct wpa_bss_params params;
    266 	os_memset(&params, 0, sizeof(params));
    267 	params.ifname = ifname;
    268 	params.enabled = enabled;
    269 	if (enabled) {
    270 		params.wpa = hapd->conf->wpa;
    271 		params.ieee802_1x = hapd->conf->ieee802_1x;
    272 		params.wpa_group = hapd->conf->wpa_group;
    273 		params.wpa_pairwise = hapd->conf->wpa_pairwise;
    274 		params.wpa_key_mgmt = hapd->conf->wpa_key_mgmt;
    275 		params.rsn_preauth = hapd->conf->rsn_preauth;
    276 #ifdef CONFIG_IEEE80211W
    277 		params.ieee80211w = hapd->conf->ieee80211w;
    278 #endif /* CONFIG_IEEE80211W */
    279 	}
    280 	return hostapd_set_ieee8021x(hapd, &params);
    281 }
    282 
    283 
    284 int hostapd_vlan_if_add(struct hostapd_data *hapd, const char *ifname)
    285 {
    286 	char force_ifname[IFNAMSIZ];
    287 	u8 if_addr[ETH_ALEN];
    288 	return hostapd_if_add(hapd, WPA_IF_AP_VLAN, ifname, hapd->own_addr,
    289 			      NULL, NULL, force_ifname, if_addr, NULL);
    290 }
    291 
    292 
    293 int hostapd_vlan_if_remove(struct hostapd_data *hapd, const char *ifname)
    294 {
    295 	return hostapd_if_remove(hapd, WPA_IF_AP_VLAN, ifname);
    296 }
    297 
    298 
    299 int hostapd_set_wds_sta(struct hostapd_data *hapd, char *ifname_wds,
    300 			const u8 *addr, int aid, int val)
    301 {
    302 	const char *bridge = NULL;
    303 
    304 	if (hapd->driver == NULL || hapd->driver->set_wds_sta == NULL)
    305 		return -1;
    306 	if (hapd->conf->wds_bridge[0])
    307 		bridge = hapd->conf->wds_bridge;
    308 	else if (hapd->conf->bridge[0])
    309 		bridge = hapd->conf->bridge;
    310 	return hapd->driver->set_wds_sta(hapd->drv_priv, addr, aid, val,
    311 					 bridge, ifname_wds);
    312 }
    313 
    314 
    315 int hostapd_add_sta_node(struct hostapd_data *hapd, const u8 *addr,
    316 			 u16 auth_alg)
    317 {
    318 	if (hapd->driver == NULL || hapd->driver->add_sta_node == NULL)
    319 		return 0;
    320 	return hapd->driver->add_sta_node(hapd->drv_priv, addr, auth_alg);
    321 }
    322 
    323 
    324 int hostapd_sta_auth(struct hostapd_data *hapd, const u8 *addr,
    325 		     u16 seq, u16 status, const u8 *ie, size_t len)
    326 {
    327 	if (hapd->driver == NULL || hapd->driver->sta_auth == NULL)
    328 		return 0;
    329 	return hapd->driver->sta_auth(hapd->drv_priv, hapd->own_addr, addr,
    330 				      seq, status, ie, len);
    331 }
    332 
    333 
    334 int hostapd_sta_assoc(struct hostapd_data *hapd, const u8 *addr,
    335 		      int reassoc, u16 status, const u8 *ie, size_t len)
    336 {
    337 	if (hapd->driver == NULL || hapd->driver->sta_assoc == NULL)
    338 		return 0;
    339 	return hapd->driver->sta_assoc(hapd->drv_priv, hapd->own_addr, addr,
    340 				       reassoc, status, ie, len);
    341 }
    342 
    343 
    344 int hostapd_sta_add(struct hostapd_data *hapd,
    345 		    const u8 *addr, u16 aid, u16 capability,
    346 		    const u8 *supp_rates, size_t supp_rates_len,
    347 		    u16 listen_interval,
    348 		    const struct ieee80211_ht_capabilities *ht_capab,
    349 		    const struct ieee80211_vht_capabilities *vht_capab,
    350 		    u32 flags, u8 qosinfo)
    351 {
    352 	struct hostapd_sta_add_params params;
    353 
    354 	if (hapd->driver == NULL)
    355 		return 0;
    356 	if (hapd->driver->sta_add == NULL)
    357 		return 0;
    358 
    359 	os_memset(&params, 0, sizeof(params));
    360 	params.addr = addr;
    361 	params.aid = aid;
    362 	params.capability = capability;
    363 	params.supp_rates = supp_rates;
    364 	params.supp_rates_len = supp_rates_len;
    365 	params.listen_interval = listen_interval;
    366 	params.ht_capabilities = ht_capab;
    367 	params.vht_capabilities = vht_capab;
    368 	params.flags = hostapd_sta_flags_to_drv(flags);
    369 	params.qosinfo = qosinfo;
    370 	return hapd->driver->sta_add(hapd->drv_priv, &params);
    371 }
    372 
    373 
    374 int hostapd_add_tspec(struct hostapd_data *hapd, const u8 *addr,
    375 		      u8 *tspec_ie, size_t tspec_ielen)
    376 {
    377 	if (hapd->driver == NULL || hapd->driver->add_tspec == NULL)
    378 		return 0;
    379 	return hapd->driver->add_tspec(hapd->drv_priv, addr, tspec_ie,
    380 				       tspec_ielen);
    381 }
    382 
    383 
    384 int hostapd_set_privacy(struct hostapd_data *hapd, int enabled)
    385 {
    386 	if (hapd->driver == NULL || hapd->driver->set_privacy == NULL)
    387 		return 0;
    388 	return hapd->driver->set_privacy(hapd->drv_priv, enabled);
    389 }
    390 
    391 
    392 int hostapd_set_generic_elem(struct hostapd_data *hapd, const u8 *elem,
    393 			     size_t elem_len)
    394 {
    395 	if (hapd->driver == NULL || hapd->driver->set_generic_elem == NULL)
    396 		return 0;
    397 	return hapd->driver->set_generic_elem(hapd->drv_priv, elem, elem_len);
    398 }
    399 
    400 
    401 int hostapd_get_ssid(struct hostapd_data *hapd, u8 *buf, size_t len)
    402 {
    403 	if (hapd->driver == NULL || hapd->driver->hapd_get_ssid == NULL)
    404 		return 0;
    405 	return hapd->driver->hapd_get_ssid(hapd->drv_priv, buf, len);
    406 }
    407 
    408 
    409 int hostapd_set_ssid(struct hostapd_data *hapd, const u8 *buf, size_t len)
    410 {
    411 	if (hapd->driver == NULL || hapd->driver->hapd_set_ssid == NULL)
    412 		return 0;
    413 	return hapd->driver->hapd_set_ssid(hapd->drv_priv, buf, len);
    414 }
    415 
    416 
    417 int hostapd_if_add(struct hostapd_data *hapd, enum wpa_driver_if_type type,
    418 		   const char *ifname, const u8 *addr, void *bss_ctx,
    419 		   void **drv_priv, char *force_ifname, u8 *if_addr,
    420 		   const char *bridge)
    421 {
    422 	if (hapd->driver == NULL || hapd->driver->if_add == NULL)
    423 		return -1;
    424 	return hapd->driver->if_add(hapd->drv_priv, type, ifname, addr,
    425 				    bss_ctx, drv_priv, force_ifname, if_addr,
    426 				    bridge);
    427 }
    428 
    429 
    430 int hostapd_if_remove(struct hostapd_data *hapd, enum wpa_driver_if_type type,
    431 		      const char *ifname)
    432 {
    433 	if (hapd->driver == NULL || hapd->driver->if_remove == NULL)
    434 		return -1;
    435 	return hapd->driver->if_remove(hapd->drv_priv, type, ifname);
    436 }
    437 
    438 
    439 int hostapd_set_ieee8021x(struct hostapd_data *hapd,
    440 			  struct wpa_bss_params *params)
    441 {
    442 	if (hapd->driver == NULL || hapd->driver->set_ieee8021x == NULL)
    443 		return 0;
    444 	return hapd->driver->set_ieee8021x(hapd->drv_priv, params);
    445 }
    446 
    447 
    448 int hostapd_get_seqnum(const char *ifname, struct hostapd_data *hapd,
    449 		       const u8 *addr, int idx, u8 *seq)
    450 {
    451 	if (hapd->driver == NULL || hapd->driver->get_seqnum == NULL)
    452 		return 0;
    453 	return hapd->driver->get_seqnum(ifname, hapd->drv_priv, addr, idx,
    454 					seq);
    455 }
    456 
    457 
    458 int hostapd_flush(struct hostapd_data *hapd)
    459 {
    460 	if (hapd->driver == NULL || hapd->driver->flush == NULL)
    461 		return 0;
    462 	return hapd->driver->flush(hapd->drv_priv);
    463 }
    464 
    465 
    466 int hostapd_set_freq(struct hostapd_data *hapd, int mode, int freq,
    467 		     int channel, int ht_enabled, int vht_enabled,
    468 		     int sec_channel_offset, int vht_oper_chwidth,
    469 		     int center_segment0, int center_segment1)
    470 {
    471 	struct hostapd_freq_params data;
    472 	int tmp;
    473 
    474 	os_memset(&data, 0, sizeof(data));
    475 	data.mode = mode;
    476 	data.freq = freq;
    477 	data.channel = channel;
    478 	data.ht_enabled = ht_enabled;
    479 	data.vht_enabled = vht_enabled;
    480 	data.sec_channel_offset = sec_channel_offset;
    481 	data.center_freq1 = freq + sec_channel_offset * 10;
    482 	data.center_freq2 = 0;
    483 	data.bandwidth = sec_channel_offset ? 40 : 20;
    484 
    485 	/*
    486 	 * This validation code is probably misplaced, maybe it should be
    487 	 * in src/ap/hw_features.c and check the hardware support as well.
    488 	 */
    489 	if (data.vht_enabled) switch (vht_oper_chwidth) {
    490 	case VHT_CHANWIDTH_USE_HT:
    491 		if (center_segment1)
    492 			return -1;
    493 		if (5000 + center_segment0 * 5 != data.center_freq1)
    494 			return -1;
    495 		break;
    496 	case VHT_CHANWIDTH_80P80MHZ:
    497 		if (center_segment1 == center_segment0 + 4 ||
    498 		    center_segment1 == center_segment0 - 4)
    499 			return -1;
    500 		data.center_freq2 = 5000 + center_segment1 * 5;
    501 		/* fall through */
    502 	case VHT_CHANWIDTH_80MHZ:
    503 		data.bandwidth = 80;
    504 		if (vht_oper_chwidth == 1 && center_segment1)
    505 			return -1;
    506 		if (vht_oper_chwidth == 3 && !center_segment1)
    507 			return -1;
    508 		if (!sec_channel_offset)
    509 			return -1;
    510 		/* primary 40 part must match the HT configuration */
    511 		tmp = (30 + freq - 5000 - center_segment0 * 5)/20;
    512 		tmp /= 2;
    513 		if (data.center_freq1 != 5000 +
    514 					 center_segment0 * 5 - 20 + 40 * tmp)
    515 			return -1;
    516 		data.center_freq1 = 5000 + center_segment0 * 5;
    517 		break;
    518 	case VHT_CHANWIDTH_160MHZ:
    519 		data.bandwidth = 160;
    520 		if (center_segment1)
    521 			return -1;
    522 		if (!sec_channel_offset)
    523 			return -1;
    524 		/* primary 40 part must match the HT configuration */
    525 		tmp = (70 + freq - 5000 - center_segment0 * 5)/20;
    526 		tmp /= 2;
    527 		if (data.center_freq1 != 5000 +
    528 					 center_segment0 * 5 - 60 + 40 * tmp)
    529 			return -1;
    530 		data.center_freq1 = 5000 + center_segment0 * 5;
    531 		break;
    532 	}
    533 	if (hapd->driver == NULL)
    534 		return 0;
    535 	if (hapd->driver->set_freq == NULL)
    536 		return 0;
    537 	return hapd->driver->set_freq(hapd->drv_priv, &data);
    538 }
    539 
    540 int hostapd_set_rts(struct hostapd_data *hapd, int rts)
    541 {
    542 	if (hapd->driver == NULL || hapd->driver->set_rts == NULL)
    543 		return 0;
    544 	return hapd->driver->set_rts(hapd->drv_priv, rts);
    545 }
    546 
    547 
    548 int hostapd_set_frag(struct hostapd_data *hapd, int frag)
    549 {
    550 	if (hapd->driver == NULL || hapd->driver->set_frag == NULL)
    551 		return 0;
    552 	return hapd->driver->set_frag(hapd->drv_priv, frag);
    553 }
    554 
    555 
    556 int hostapd_sta_set_flags(struct hostapd_data *hapd, u8 *addr,
    557 			  int total_flags, int flags_or, int flags_and)
    558 {
    559 	if (hapd->driver == NULL || hapd->driver->sta_set_flags == NULL)
    560 		return 0;
    561 	return hapd->driver->sta_set_flags(hapd->drv_priv, addr, total_flags,
    562 					   flags_or, flags_and);
    563 }
    564 
    565 
    566 int hostapd_set_country(struct hostapd_data *hapd, const char *country)
    567 {
    568 	if (hapd->driver == NULL ||
    569 	    hapd->driver->set_country == NULL)
    570 		return 0;
    571 	return hapd->driver->set_country(hapd->drv_priv, country);
    572 }
    573 
    574 
    575 int hostapd_set_tx_queue_params(struct hostapd_data *hapd, int queue, int aifs,
    576 				int cw_min, int cw_max, int burst_time)
    577 {
    578 	if (hapd->driver == NULL || hapd->driver->set_tx_queue_params == NULL)
    579 		return 0;
    580 	return hapd->driver->set_tx_queue_params(hapd->drv_priv, queue, aifs,
    581 						 cw_min, cw_max, burst_time);
    582 }
    583 
    584 
    585 struct hostapd_hw_modes *
    586 hostapd_get_hw_feature_data(struct hostapd_data *hapd, u16 *num_modes,
    587 			    u16 *flags)
    588 {
    589 	if (hapd->driver == NULL ||
    590 	    hapd->driver->get_hw_feature_data == NULL)
    591 		return NULL;
    592 	return hapd->driver->get_hw_feature_data(hapd->drv_priv, num_modes,
    593 						 flags);
    594 }
    595 
    596 
    597 int hostapd_driver_commit(struct hostapd_data *hapd)
    598 {
    599 	if (hapd->driver == NULL || hapd->driver->commit == NULL)
    600 		return 0;
    601 	return hapd->driver->commit(hapd->drv_priv);
    602 }
    603 
    604 
    605 int hostapd_drv_none(struct hostapd_data *hapd)
    606 {
    607 	return hapd->driver && os_strcmp(hapd->driver->name, "none") == 0;
    608 }
    609 
    610 
    611 int hostapd_driver_scan(struct hostapd_data *hapd,
    612 			struct wpa_driver_scan_params *params)
    613 {
    614 	if (hapd->driver && hapd->driver->scan2)
    615 		return hapd->driver->scan2(hapd->drv_priv, params);
    616 	return -1;
    617 }
    618 
    619 
    620 struct wpa_scan_results * hostapd_driver_get_scan_results(
    621 	struct hostapd_data *hapd)
    622 {
    623 	if (hapd->driver && hapd->driver->get_scan_results2)
    624 		return hapd->driver->get_scan_results2(hapd->drv_priv);
    625 	return NULL;
    626 }
    627 
    628 
    629 int hostapd_driver_set_noa(struct hostapd_data *hapd, u8 count, int start,
    630 			   int duration)
    631 {
    632 	if (hapd->driver && hapd->driver->set_noa)
    633 		return hapd->driver->set_noa(hapd->drv_priv, count, start,
    634 					     duration);
    635 	return -1;
    636 }
    637 
    638 
    639 int hostapd_drv_set_key(const char *ifname, struct hostapd_data *hapd,
    640 			enum wpa_alg alg, const u8 *addr,
    641 			int key_idx, int set_tx,
    642 			const u8 *seq, size_t seq_len,
    643 			const u8 *key, size_t key_len)
    644 {
    645 	if (hapd->driver == NULL || hapd->driver->set_key == NULL)
    646 		return 0;
    647 	return hapd->driver->set_key(ifname, hapd->drv_priv, alg, addr,
    648 				     key_idx, set_tx, seq, seq_len, key,
    649 				     key_len);
    650 }
    651 
    652 
    653 int hostapd_drv_send_mlme(struct hostapd_data *hapd,
    654 			  const void *msg, size_t len, int noack)
    655 {
    656 	if (hapd->driver == NULL || hapd->driver->send_mlme == NULL)
    657 		return 0;
    658 	return hapd->driver->send_mlme(hapd->drv_priv, msg, len, noack);
    659 }
    660 
    661 
    662 int hostapd_drv_sta_deauth(struct hostapd_data *hapd,
    663 			   const u8 *addr, int reason)
    664 {
    665 	if (hapd->driver == NULL || hapd->driver->sta_deauth == NULL)
    666 		return 0;
    667 	return hapd->driver->sta_deauth(hapd->drv_priv, hapd->own_addr, addr,
    668 					reason);
    669 }
    670 
    671 
    672 int hostapd_drv_sta_disassoc(struct hostapd_data *hapd,
    673 			     const u8 *addr, int reason)
    674 {
    675 	if (hapd->driver == NULL || hapd->driver->sta_disassoc == NULL)
    676 		return 0;
    677 	return hapd->driver->sta_disassoc(hapd->drv_priv, hapd->own_addr, addr,
    678 					  reason);
    679 }
    680 
    681 
    682 int hostapd_drv_wnm_oper(struct hostapd_data *hapd, enum wnm_oper oper,
    683 			 const u8 *peer, u8 *buf, u16 *buf_len)
    684 {
    685 	if (hapd->driver == NULL || hapd->driver->wnm_oper == NULL)
    686 		return 0;
    687 	return hapd->driver->wnm_oper(hapd->drv_priv, oper, peer, buf,
    688 				      buf_len);
    689 }
    690 
    691 
    692 int hostapd_drv_send_action(struct hostapd_data *hapd, unsigned int freq,
    693 			    unsigned int wait, const u8 *dst, const u8 *data,
    694 			    size_t len)
    695 {
    696 	if (hapd->driver == NULL || hapd->driver->send_action == NULL)
    697 		return 0;
    698 	return hapd->driver->send_action(hapd->drv_priv, freq, wait, dst,
    699 					 hapd->own_addr, hapd->own_addr, data,
    700 					 len, 0);
    701 }
    702