2 * hostapd - Driver operations
3 * Copyright (c) 2009-2010, Jouni Malinen <j@w1.fi>
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.
9 * Alternatively, this software may be distributed under the terms of BSD
12 * See README and COPYING for more details.
15 #include "utils/includes.h"
17 #include "utils/common.h"
18 #include "drivers/driver.h"
19 #include "common/ieee802_11_defs.h"
21 #include "ieee802_11.h"
23 #include "ap_config.h"
24 #include "ap_drv_ops.h"
27 static int hostapd_sta_flags_to_drv(int flags)
30 if (flags & WLAN_STA_AUTHORIZED)
31 res |= WPA_STA_AUTHORIZED;
32 if (flags & WLAN_STA_WMM)
34 if (flags & WLAN_STA_SHORT_PREAMBLE)
35 res |= WPA_STA_SHORT_PREAMBLE;
36 if (flags & WLAN_STA_MFP)
42 static int hostapd_set_ap_wps_ie(struct hostapd_data *hapd)
44 struct wpabuf *beacon, *proberesp;
47 if (hapd->driver == NULL || hapd->driver->set_ap_wps_ie == NULL)
50 beacon = hapd->wps_beacon_ie;
51 proberesp = hapd->wps_probe_resp_ie;
54 if (hapd->wps_beacon_ie == NULL && hapd->p2p_beacon_ie == NULL)
57 beacon = wpabuf_alloc((hapd->wps_beacon_ie ?
58 wpabuf_len(hapd->wps_beacon_ie) : 0) +
59 (hapd->p2p_beacon_ie ?
60 wpabuf_len(hapd->p2p_beacon_ie) : 0));
63 if (hapd->wps_beacon_ie)
64 wpabuf_put_buf(beacon, hapd->wps_beacon_ie);
65 if (hapd->p2p_beacon_ie)
66 wpabuf_put_buf(beacon, hapd->p2p_beacon_ie);
69 if (hapd->wps_probe_resp_ie == NULL && hapd->p2p_probe_resp_ie == NULL)
72 proberesp = wpabuf_alloc(
73 (hapd->wps_probe_resp_ie ?
74 wpabuf_len(hapd->wps_probe_resp_ie) : 0) +
75 (hapd->p2p_probe_resp_ie ?
76 wpabuf_len(hapd->p2p_probe_resp_ie) : 0));
77 if (proberesp == NULL) {
81 if (hapd->wps_probe_resp_ie)
82 wpabuf_put_buf(proberesp, hapd->wps_probe_resp_ie);
83 if (hapd->p2p_probe_resp_ie)
84 wpabuf_put_buf(proberesp, hapd->p2p_probe_resp_ie);
86 #endif /* CONFIG_P2P */
88 ret = hapd->driver->set_ap_wps_ie(hapd->drv_priv, beacon, proberesp);
92 wpabuf_free(proberesp);
93 #endif /* CONFIG_P2P */
99 static int hostapd_send_mgmt_frame(struct hostapd_data *hapd, const void *msg,
102 if (hapd->driver == NULL || hapd->driver->send_mlme == NULL)
104 return hapd->driver->send_mlme(hapd->drv_priv, msg, len);
108 static int hostapd_send_eapol(struct hostapd_data *hapd, const u8 *addr,
109 const u8 *data, size_t data_len, int encrypt)
111 if (hapd->driver == NULL || hapd->driver->hapd_send_eapol == NULL)
113 return hapd->driver->hapd_send_eapol(hapd->drv_priv, addr, data,
119 static int hostapd_set_authorized(struct hostapd_data *hapd,
120 struct sta_info *sta, int authorized)
123 return hostapd_sta_set_flags(hapd, sta->addr,
124 hostapd_sta_flags_to_drv(
126 WPA_STA_AUTHORIZED, ~0);
129 return hostapd_sta_set_flags(hapd, sta->addr,
130 hostapd_sta_flags_to_drv(sta->flags),
131 0, ~WPA_STA_AUTHORIZED);
135 static int hostapd_set_key(const char *ifname, struct hostapd_data *hapd,
136 enum wpa_alg alg, const u8 *addr, int key_idx,
137 int set_tx, const u8 *seq, size_t seq_len,
138 const u8 *key, size_t key_len)
140 if (hapd->driver == NULL || hapd->driver->set_key == NULL)
142 return hapd->driver->set_key(ifname, hapd->drv_priv, alg, addr,
143 key_idx, set_tx, seq, seq_len, key,
148 static int hostapd_read_sta_data(struct hostapd_data *hapd,
149 struct hostap_sta_driver_data *data,
152 if (hapd->driver == NULL || hapd->driver->read_sta_data == NULL)
154 return hapd->driver->read_sta_data(hapd->drv_priv, data, addr);
158 static int hostapd_sta_clear_stats(struct hostapd_data *hapd, const u8 *addr)
160 if (hapd->driver == NULL || hapd->driver->sta_clear_stats == NULL)
162 return hapd->driver->sta_clear_stats(hapd->drv_priv, addr);
166 static int hostapd_set_sta_flags(struct hostapd_data *hapd,
167 struct sta_info *sta)
169 int set_flags, total_flags, flags_and, flags_or;
170 total_flags = hostapd_sta_flags_to_drv(sta->flags);
171 set_flags = WPA_STA_SHORT_PREAMBLE | WPA_STA_WMM | WPA_STA_MFP;
172 if (((!hapd->conf->ieee802_1x && !hapd->conf->wpa) ||
173 sta->auth_alg == WLAN_AUTH_FT) &&
174 sta->flags & WLAN_STA_AUTHORIZED)
175 set_flags |= WPA_STA_AUTHORIZED;
176 flags_or = total_flags & set_flags;
177 flags_and = total_flags | ~set_flags;
178 return hostapd_sta_set_flags(hapd, sta->addr, total_flags,
179 flags_or, flags_and);
183 static int hostapd_set_drv_ieee8021x(struct hostapd_data *hapd,
184 const char *ifname, int enabled)
186 struct wpa_bss_params params;
187 os_memset(¶ms, 0, sizeof(params));
188 params.ifname = ifname;
189 params.enabled = enabled;
191 params.wpa = hapd->conf->wpa;
192 params.ieee802_1x = hapd->conf->ieee802_1x;
193 params.wpa_group = hapd->conf->wpa_group;
194 params.wpa_pairwise = hapd->conf->wpa_pairwise;
195 params.wpa_key_mgmt = hapd->conf->wpa_key_mgmt;
196 params.rsn_preauth = hapd->conf->rsn_preauth;
198 return hostapd_set_ieee8021x(hapd, ¶ms);
202 static int hostapd_set_radius_acl_auth(struct hostapd_data *hapd,
203 const u8 *mac, int accepted,
206 if (hapd->driver == NULL || hapd->driver->set_radius_acl_auth == NULL)
208 return hapd->driver->set_radius_acl_auth(hapd->drv_priv, mac, accepted,
213 static int hostapd_set_radius_acl_expire(struct hostapd_data *hapd,
216 if (hapd->driver == NULL ||
217 hapd->driver->set_radius_acl_expire == NULL)
219 return hapd->driver->set_radius_acl_expire(hapd->drv_priv, mac);
223 static int hostapd_set_bss_params(struct hostapd_data *hapd,
228 #ifdef CONFIG_IEEE80211N
229 u8 buf[60], *ht_capab, *ht_oper, *pos;
233 pos = hostapd_eid_ht_capabilities(hapd, pos);
235 pos = hostapd_eid_ht_operation(hapd, pos);
236 if (pos > ht_oper && ht_oper > ht_capab &&
237 hostapd_set_ht_params(hapd, ht_capab + 2, ht_capab[1],
238 ht_oper + 2, ht_oper[1])) {
239 wpa_printf(MSG_ERROR, "Could not set HT capabilities "
240 "for kernel driver");
244 #endif /* CONFIG_IEEE80211N */
246 if (hostapd_set_cts_protect(hapd, use_protection)) {
247 wpa_printf(MSG_ERROR, "Failed to set CTS protect in kernel "
252 if (hapd->iface->current_mode &&
253 hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G &&
254 hostapd_set_short_slot_time(hapd,
255 hapd->iface->num_sta_no_short_slot_time
257 wpa_printf(MSG_ERROR, "Failed to set Short Slot Time option "
262 if (hapd->iface->num_sta_no_short_preamble == 0 &&
263 hapd->iconf->preamble == SHORT_PREAMBLE)
264 preamble = SHORT_PREAMBLE;
266 preamble = LONG_PREAMBLE;
267 if (hostapd_set_preamble(hapd, preamble)) {
268 wpa_printf(MSG_ERROR, "Could not set preamble for kernel "
277 static int hostapd_set_beacon(struct hostapd_data *hapd,
278 const u8 *head, size_t head_len,
279 const u8 *tail, size_t tail_len, int dtim_period,
282 if (hapd->driver == NULL || hapd->driver->set_beacon == NULL)
284 return hapd->driver->set_beacon(hapd->drv_priv,
285 head, head_len, tail, tail_len,
286 dtim_period, beacon_int);
290 static int hostapd_vlan_if_add(struct hostapd_data *hapd, const char *ifname)
292 char force_ifname[IFNAMSIZ];
293 u8 if_addr[ETH_ALEN];
294 return hostapd_if_add(hapd, WPA_IF_AP_VLAN, ifname, NULL, NULL, NULL,
295 force_ifname, if_addr);
298 static int hostapd_vlan_if_remove(struct hostapd_data *hapd,
301 return hostapd_if_remove(hapd, WPA_IF_AP_VLAN, ifname);
305 static int hostapd_set_wds_sta(struct hostapd_data *hapd, const u8 *addr,
308 if (hapd->driver == NULL || hapd->driver->set_wds_sta == NULL)
310 return hapd->driver->set_wds_sta(hapd->drv_priv, addr, aid, val);
314 static int hostapd_set_sta_vlan(const char *ifname, struct hostapd_data *hapd,
315 const u8 *addr, int vlan_id)
317 if (hapd->driver == NULL || hapd->driver->set_sta_vlan == NULL)
319 return hapd->driver->set_sta_vlan(hapd->drv_priv, addr, ifname,
324 static int hostapd_get_inact_sec(struct hostapd_data *hapd, const u8 *addr)
326 if (hapd->driver == NULL || hapd->driver->get_inact_sec == NULL)
328 return hapd->driver->get_inact_sec(hapd->drv_priv, addr);
332 static int hostapd_sta_deauth(struct hostapd_data *hapd, const u8 *addr,
335 if (hapd->driver == NULL || hapd->driver->sta_deauth == NULL)
337 return hapd->driver->sta_deauth(hapd->drv_priv, hapd->own_addr, addr,
342 static int hostapd_sta_disassoc(struct hostapd_data *hapd, const u8 *addr,
345 if (hapd->driver == NULL || hapd->driver->sta_disassoc == NULL)
347 return hapd->driver->sta_disassoc(hapd->drv_priv, hapd->own_addr, addr,
352 static int hostapd_sta_add(struct hostapd_data *hapd,
353 const u8 *addr, u16 aid, u16 capability,
354 const u8 *supp_rates, size_t supp_rates_len,
356 const struct ieee80211_ht_capabilities *ht_capab)
358 struct hostapd_sta_add_params params;
360 if (hapd->driver == NULL)
362 if (hapd->driver->sta_add == NULL)
365 os_memset(¶ms, 0, sizeof(params));
368 params.capability = capability;
369 params.supp_rates = supp_rates;
370 params.supp_rates_len = supp_rates_len;
371 params.listen_interval = listen_interval;
372 params.ht_capabilities = ht_capab;
373 return hapd->driver->sta_add(hapd->drv_priv, ¶ms);
377 static int hostapd_sta_remove(struct hostapd_data *hapd, const u8 *addr)
379 if (hapd->driver == NULL || hapd->driver->sta_remove == NULL)
381 return hapd->driver->sta_remove(hapd->drv_priv, addr);
385 static int hostapd_set_countermeasures(struct hostapd_data *hapd, int enabled)
387 if (hapd->driver == NULL ||
388 hapd->driver->hapd_set_countermeasures == NULL)
390 return hapd->driver->hapd_set_countermeasures(hapd->drv_priv, enabled);
394 void hostapd_set_driver_ops(struct hostapd_driver_ops *ops)
396 ops->set_ap_wps_ie = hostapd_set_ap_wps_ie;
397 ops->send_mgmt_frame = hostapd_send_mgmt_frame;
398 ops->send_eapol = hostapd_send_eapol;
399 ops->set_authorized = hostapd_set_authorized;
400 ops->set_key = hostapd_set_key;
401 ops->read_sta_data = hostapd_read_sta_data;
402 ops->sta_clear_stats = hostapd_sta_clear_stats;
403 ops->set_sta_flags = hostapd_set_sta_flags;
404 ops->set_drv_ieee8021x = hostapd_set_drv_ieee8021x;
405 ops->set_radius_acl_auth = hostapd_set_radius_acl_auth;
406 ops->set_radius_acl_expire = hostapd_set_radius_acl_expire;
407 ops->set_bss_params = hostapd_set_bss_params;
408 ops->set_beacon = hostapd_set_beacon;
409 ops->vlan_if_add = hostapd_vlan_if_add;
410 ops->vlan_if_remove = hostapd_vlan_if_remove;
411 ops->set_wds_sta = hostapd_set_wds_sta;
412 ops->set_sta_vlan = hostapd_set_sta_vlan;
413 ops->get_inact_sec = hostapd_get_inact_sec;
414 ops->sta_deauth = hostapd_sta_deauth;
415 ops->sta_disassoc = hostapd_sta_disassoc;
416 ops->sta_add = hostapd_sta_add;
417 ops->sta_remove = hostapd_sta_remove;
418 ops->set_countermeasures = hostapd_set_countermeasures;
422 int hostapd_set_privacy(struct hostapd_data *hapd, int enabled)
424 if (hapd->driver == NULL || hapd->driver->set_privacy == NULL)
426 return hapd->driver->set_privacy(hapd->drv_priv, enabled);
430 int hostapd_set_generic_elem(struct hostapd_data *hapd, const u8 *elem,
433 if (hapd->driver == NULL || hapd->driver->set_generic_elem == NULL)
435 return hapd->driver->set_generic_elem(hapd->drv_priv, elem, elem_len);
439 int hostapd_get_ssid(struct hostapd_data *hapd, u8 *buf, size_t len)
441 if (hapd->driver == NULL || hapd->driver->hapd_get_ssid == NULL)
443 return hapd->driver->hapd_get_ssid(hapd->drv_priv, buf, len);
447 int hostapd_set_ssid(struct hostapd_data *hapd, const u8 *buf, size_t len)
449 if (hapd->driver == NULL || hapd->driver->hapd_set_ssid == NULL)
451 return hapd->driver->hapd_set_ssid(hapd->drv_priv, buf, len);
455 int hostapd_if_add(struct hostapd_data *hapd, enum wpa_driver_if_type type,
456 const char *ifname, const u8 *addr, void *bss_ctx,
457 void **drv_priv, char *force_ifname, u8 *if_addr)
459 if (hapd->driver == NULL || hapd->driver->if_add == NULL)
461 return hapd->driver->if_add(hapd->drv_priv, type, ifname, addr,
462 bss_ctx, drv_priv, force_ifname, if_addr);
466 int hostapd_if_remove(struct hostapd_data *hapd, enum wpa_driver_if_type type,
469 if (hapd->driver == NULL || hapd->driver->if_remove == NULL)
471 return hapd->driver->if_remove(hapd->drv_priv, type, ifname);
475 int hostapd_set_ieee8021x(struct hostapd_data *hapd,
476 struct wpa_bss_params *params)
478 if (hapd->driver == NULL || hapd->driver->set_ieee8021x == NULL)
480 return hapd->driver->set_ieee8021x(hapd->drv_priv, params);
484 int hostapd_get_seqnum(const char *ifname, struct hostapd_data *hapd,
485 const u8 *addr, int idx, u8 *seq)
487 if (hapd->driver == NULL || hapd->driver->get_seqnum == NULL)
489 return hapd->driver->get_seqnum(ifname, hapd->drv_priv, addr, idx,
494 int hostapd_flush(struct hostapd_data *hapd)
496 if (hapd->driver == NULL || hapd->driver->flush == NULL)
498 return hapd->driver->flush(hapd->drv_priv);
502 int hostapd_set_freq(struct hostapd_data *hapd, int mode, int freq,
503 int channel, int ht_enabled, int sec_channel_offset)
505 struct hostapd_freq_params data;
506 if (hapd->driver == NULL)
508 if (hapd->driver->set_freq == NULL)
510 os_memset(&data, 0, sizeof(data));
513 data.channel = channel;
514 data.ht_enabled = ht_enabled;
515 data.sec_channel_offset = sec_channel_offset;
516 return hapd->driver->set_freq(hapd->drv_priv, &data);
519 int hostapd_set_rts(struct hostapd_data *hapd, int rts)
521 if (hapd->driver == NULL || hapd->driver->set_rts == NULL)
523 return hapd->driver->set_rts(hapd->drv_priv, rts);
527 int hostapd_set_frag(struct hostapd_data *hapd, int frag)
529 if (hapd->driver == NULL || hapd->driver->set_frag == NULL)
531 return hapd->driver->set_frag(hapd->drv_priv, frag);
535 int hostapd_sta_set_flags(struct hostapd_data *hapd, u8 *addr,
536 int total_flags, int flags_or, int flags_and)
538 if (hapd->driver == NULL || hapd->driver->sta_set_flags == NULL)
540 return hapd->driver->sta_set_flags(hapd->drv_priv, addr, total_flags,
541 flags_or, flags_and);
545 int hostapd_set_rate_sets(struct hostapd_data *hapd, int *supp_rates,
546 int *basic_rates, int mode)
548 if (hapd->driver == NULL || hapd->driver->set_rate_sets == NULL)
550 return hapd->driver->set_rate_sets(hapd->drv_priv, supp_rates,
555 int hostapd_set_country(struct hostapd_data *hapd, const char *country)
557 if (hapd->driver == NULL ||
558 hapd->driver->set_country == NULL)
560 return hapd->driver->set_country(hapd->drv_priv, country);
564 int hostapd_set_cts_protect(struct hostapd_data *hapd, int value)
566 if (hapd->driver == NULL || hapd->driver->set_cts_protect == NULL)
568 return hapd->driver->set_cts_protect(hapd->drv_priv, value);
572 int hostapd_set_preamble(struct hostapd_data *hapd, int value)
574 if (hapd->driver == NULL || hapd->driver->set_preamble == NULL)
576 return hapd->driver->set_preamble(hapd->drv_priv, value);
580 int hostapd_set_short_slot_time(struct hostapd_data *hapd, int value)
582 if (hapd->driver == NULL || hapd->driver->set_short_slot_time == NULL)
584 return hapd->driver->set_short_slot_time(hapd->drv_priv, value);
588 int hostapd_set_tx_queue_params(struct hostapd_data *hapd, int queue, int aifs,
589 int cw_min, int cw_max, int burst_time)
591 if (hapd->driver == NULL || hapd->driver->set_tx_queue_params == NULL)
593 return hapd->driver->set_tx_queue_params(hapd->drv_priv, queue, aifs,
594 cw_min, cw_max, burst_time);
598 int hostapd_valid_bss_mask(struct hostapd_data *hapd, const u8 *addr,
601 if (hapd->driver == NULL || hapd->driver->valid_bss_mask == NULL)
603 return hapd->driver->valid_bss_mask(hapd->drv_priv, addr, mask);
607 struct hostapd_hw_modes *
608 hostapd_get_hw_feature_data(struct hostapd_data *hapd, u16 *num_modes,
611 if (hapd->driver == NULL ||
612 hapd->driver->get_hw_feature_data == NULL)
614 return hapd->driver->get_hw_feature_data(hapd->drv_priv, num_modes,
619 int hostapd_driver_commit(struct hostapd_data *hapd)
621 if (hapd->driver == NULL || hapd->driver->commit == NULL)
623 return hapd->driver->commit(hapd->drv_priv);
627 int hostapd_set_ht_params(struct hostapd_data *hapd,
628 const u8 *ht_capab, size_t ht_capab_len,
629 const u8 *ht_oper, size_t ht_oper_len)
631 if (hapd->driver == NULL || hapd->driver->set_ht_params == NULL ||
632 ht_capab == NULL || ht_oper == NULL)
634 return hapd->driver->set_ht_params(hapd->drv_priv,
635 ht_capab, ht_capab_len,
636 ht_oper, ht_oper_len);
640 int hostapd_drv_none(struct hostapd_data *hapd)
642 return hapd->driver && os_strcmp(hapd->driver->name, "none") == 0;
646 int hostapd_driver_scan(struct hostapd_data *hapd,
647 struct wpa_driver_scan_params *params)
649 if (hapd->driver && hapd->driver->scan2)
650 return hapd->driver->scan2(hapd->drv_priv, params);
655 struct wpa_scan_results * hostapd_driver_get_scan_results(
656 struct hostapd_data *hapd)
658 if (hapd->driver && hapd->driver->get_scan_results2)
659 return hapd->driver->get_scan_results2(hapd->drv_priv);