1 /*
2 * hostapd / Callback functions for driver wrappers
3 * Copyright (c) 2002-2013, 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 "radius/radius.h"
14 #include "drivers/driver.h"
15 #include "common/ieee802_11_defs.h"
16 #include "common/ieee802_11_common.h"
17 #include "common/wpa_ctrl.h"
18 #include "crypto/random.h"
19 #include "p2p/p2p.h"
20 #include "wps/wps.h"
21 #include "fst/fst.h"
22 #include "wnm_ap.h"
23 #include "hostapd.h"
24 #include "ieee802_11.h"
25 #include "ieee802_11_auth.h"
26 #include "sta_info.h"
27 #include "accounting.h"
28 #include "tkip_countermeasures.h"
29 #include "ieee802_1x.h"
30 #include "wpa_auth.h"
31 #include "wps_hostapd.h"
32 #include "ap_drv_ops.h"
33 #include "ap_config.h"
34 #include "hw_features.h"
35 #include "dfs.h"
36 #include "beacon.h"
37 #include "mbo_ap.h"
38
39
hostapd_notif_assoc(struct hostapd_data * hapd,const u8 * addr,const u8 * req_ies,size_t req_ies_len,int reassoc)40 int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
41 const u8 *req_ies, size_t req_ies_len, int reassoc)
42 {
43 struct sta_info *sta;
44 int new_assoc, res;
45 struct ieee802_11_elems elems;
46 const u8 *ie;
47 size_t ielen;
48 #if defined(CONFIG_IEEE80211R_AP) || defined(CONFIG_IEEE80211W)
49 u8 buf[sizeof(struct ieee80211_mgmt) + 1024];
50 u8 *p = buf;
51 #endif /* CONFIG_IEEE80211R_AP || CONFIG_IEEE80211W */
52 u16 reason = WLAN_REASON_UNSPECIFIED;
53 u16 status = WLAN_STATUS_SUCCESS;
54 const u8 *p2p_dev_addr = NULL;
55
56 if (addr == NULL) {
57 /*
58 * This could potentially happen with unexpected event from the
59 * driver wrapper. This was seen at least in one case where the
60 * driver ended up being set to station mode while hostapd was
61 * running, so better make sure we stop processing such an
62 * event here.
63 */
64 wpa_printf(MSG_DEBUG,
65 "hostapd_notif_assoc: Skip event with no address");
66 return -1;
67 }
68 random_add_randomness(addr, ETH_ALEN);
69
70 hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
71 HOSTAPD_LEVEL_INFO, "associated");
72
73 ieee802_11_parse_elems(req_ies, req_ies_len, &elems, 0);
74 if (elems.wps_ie) {
75 ie = elems.wps_ie - 2;
76 ielen = elems.wps_ie_len + 2;
77 wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)AssocReq");
78 } else if (elems.rsn_ie) {
79 ie = elems.rsn_ie - 2;
80 ielen = elems.rsn_ie_len + 2;
81 wpa_printf(MSG_DEBUG, "STA included RSN IE in (Re)AssocReq");
82 } else if (elems.wpa_ie) {
83 ie = elems.wpa_ie - 2;
84 ielen = elems.wpa_ie_len + 2;
85 wpa_printf(MSG_DEBUG, "STA included WPA IE in (Re)AssocReq");
86 #ifdef CONFIG_HS20
87 } else if (elems.osen) {
88 ie = elems.osen - 2;
89 ielen = elems.osen_len + 2;
90 wpa_printf(MSG_DEBUG, "STA included OSEN IE in (Re)AssocReq");
91 #endif /* CONFIG_HS20 */
92 } else {
93 ie = NULL;
94 ielen = 0;
95 wpa_printf(MSG_DEBUG,
96 "STA did not include WPS/RSN/WPA IE in (Re)AssocReq");
97 }
98
99 sta = ap_get_sta(hapd, addr);
100 if (sta) {
101 ap_sta_no_session_timeout(hapd, sta);
102 accounting_sta_stop(hapd, sta);
103
104 /*
105 * Make sure that the previously registered inactivity timer
106 * will not remove the STA immediately.
107 */
108 sta->timeout_next = STA_NULLFUNC;
109 } else {
110 sta = ap_sta_add(hapd, addr);
111 if (sta == NULL) {
112 hostapd_drv_sta_disassoc(hapd, addr,
113 WLAN_REASON_DISASSOC_AP_BUSY);
114 return -1;
115 }
116 }
117 sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2);
118
119 /*
120 * ACL configurations to the drivers (implementing AP SME and ACL
121 * offload) without hostapd's knowledge, can result in a disconnection
122 * though the driver accepts the connection. Skip the hostapd check for
123 * ACL if the driver supports ACL offload to avoid potentially
124 * conflicting ACL rules.
125 */
126 if (hapd->iface->drv_max_acl_mac_addrs == 0 &&
127 hostapd_check_acl(hapd, addr, NULL) != HOSTAPD_ACL_ACCEPT) {
128 wpa_printf(MSG_INFO, "STA " MACSTR " not allowed to connect",
129 MAC2STR(addr));
130 reason = WLAN_REASON_UNSPECIFIED;
131 goto fail;
132 }
133
134 #ifdef CONFIG_P2P
135 if (elems.p2p) {
136 wpabuf_free(sta->p2p_ie);
137 sta->p2p_ie = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
138 P2P_IE_VENDOR_TYPE);
139 if (sta->p2p_ie)
140 p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie);
141 }
142 #endif /* CONFIG_P2P */
143
144 #ifdef CONFIG_IEEE80211N
145 #ifdef NEED_AP_MLME
146 if (elems.ht_capabilities &&
147 (hapd->iface->conf->ht_capab &
148 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) {
149 struct ieee80211_ht_capabilities *ht_cap =
150 (struct ieee80211_ht_capabilities *)
151 elems.ht_capabilities;
152
153 if (le_to_host16(ht_cap->ht_capabilities_info) &
154 HT_CAP_INFO_40MHZ_INTOLERANT)
155 ht40_intolerant_add(hapd->iface, sta);
156 }
157 #endif /* NEED_AP_MLME */
158 #endif /* CONFIG_IEEE80211N */
159
160 #ifdef CONFIG_INTERWORKING
161 if (elems.ext_capab && elems.ext_capab_len > 4) {
162 if (elems.ext_capab[4] & 0x01)
163 sta->qos_map_enabled = 1;
164 }
165 #endif /* CONFIG_INTERWORKING */
166
167 #ifdef CONFIG_HS20
168 wpabuf_free(sta->hs20_ie);
169 if (elems.hs20 && elems.hs20_len > 4) {
170 sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4,
171 elems.hs20_len - 4);
172 } else
173 sta->hs20_ie = NULL;
174 #endif /* CONFIG_HS20 */
175
176 #ifdef CONFIG_FST
177 wpabuf_free(sta->mb_ies);
178 if (hapd->iface->fst)
179 sta->mb_ies = mb_ies_by_info(&elems.mb_ies);
180 else
181 sta->mb_ies = NULL;
182 #endif /* CONFIG_FST */
183
184 mbo_ap_check_sta_assoc(hapd, sta, &elems);
185
186 ap_copy_sta_supp_op_classes(sta, elems.supp_op_classes,
187 elems.supp_op_classes_len);
188
189 if (hapd->conf->wpa) {
190 if (ie == NULL || ielen == 0) {
191 #ifdef CONFIG_WPS
192 if (hapd->conf->wps_state) {
193 wpa_printf(MSG_DEBUG,
194 "STA did not include WPA/RSN IE in (Re)Association Request - possible WPS use");
195 sta->flags |= WLAN_STA_MAYBE_WPS;
196 goto skip_wpa_check;
197 }
198 #endif /* CONFIG_WPS */
199
200 wpa_printf(MSG_DEBUG, "No WPA/RSN IE from STA");
201 return -1;
202 }
203 #ifdef CONFIG_WPS
204 if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 &&
205 os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) {
206 struct wpabuf *wps;
207
208 sta->flags |= WLAN_STA_WPS;
209 wps = ieee802_11_vendor_ie_concat(ie, ielen,
210 WPS_IE_VENDOR_TYPE);
211 if (wps) {
212 if (wps_is_20(wps)) {
213 wpa_printf(MSG_DEBUG,
214 "WPS: STA supports WPS 2.0");
215 sta->flags |= WLAN_STA_WPS2;
216 }
217 wpabuf_free(wps);
218 }
219 goto skip_wpa_check;
220 }
221 #endif /* CONFIG_WPS */
222
223 if (sta->wpa_sm == NULL)
224 sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
225 sta->addr,
226 p2p_dev_addr);
227 if (sta->wpa_sm == NULL) {
228 wpa_printf(MSG_ERROR,
229 "Failed to initialize WPA state machine");
230 return -1;
231 }
232 res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
233 ie, ielen,
234 elems.mdie, elems.mdie_len);
235 if (res != WPA_IE_OK) {
236 wpa_printf(MSG_DEBUG,
237 "WPA/RSN information element rejected? (res %u)",
238 res);
239 wpa_hexdump(MSG_DEBUG, "IE", ie, ielen);
240 if (res == WPA_INVALID_GROUP) {
241 reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
242 status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
243 } else if (res == WPA_INVALID_PAIRWISE) {
244 reason = WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID;
245 status = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID;
246 } else if (res == WPA_INVALID_AKMP) {
247 reason = WLAN_REASON_AKMP_NOT_VALID;
248 status = WLAN_STATUS_AKMP_NOT_VALID;
249 }
250 #ifdef CONFIG_IEEE80211W
251 else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) {
252 reason = WLAN_REASON_INVALID_IE;
253 status = WLAN_STATUS_INVALID_IE;
254 } else if (res == WPA_INVALID_MGMT_GROUP_CIPHER) {
255 reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
256 status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
257 }
258 #endif /* CONFIG_IEEE80211W */
259 else {
260 reason = WLAN_REASON_INVALID_IE;
261 status = WLAN_STATUS_INVALID_IE;
262 }
263 goto fail;
264 }
265 #ifdef CONFIG_IEEE80211W
266 if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
267 sta->sa_query_count > 0)
268 ap_check_sa_query_timeout(hapd, sta);
269 if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
270 (sta->auth_alg != WLAN_AUTH_FT)) {
271 /*
272 * STA has already been associated with MFP and SA
273 * Query timeout has not been reached. Reject the
274 * association attempt temporarily and start SA Query,
275 * if one is not pending.
276 */
277
278 if (sta->sa_query_count == 0)
279 ap_sta_start_sa_query(hapd, sta);
280
281 status = WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY;
282
283 p = hostapd_eid_assoc_comeback_time(hapd, sta, p);
284
285 hostapd_sta_assoc(hapd, addr, reassoc, status, buf,
286 p - buf);
287 return 0;
288 }
289
290 if (wpa_auth_uses_mfp(sta->wpa_sm))
291 sta->flags |= WLAN_STA_MFP;
292 else
293 sta->flags &= ~WLAN_STA_MFP;
294 #endif /* CONFIG_IEEE80211W */
295
296 #ifdef CONFIG_IEEE80211R_AP
297 if (sta->auth_alg == WLAN_AUTH_FT) {
298 status = wpa_ft_validate_reassoc(sta->wpa_sm, req_ies,
299 req_ies_len);
300 if (status != WLAN_STATUS_SUCCESS) {
301 if (status == WLAN_STATUS_INVALID_PMKID)
302 reason = WLAN_REASON_INVALID_IE;
303 if (status == WLAN_STATUS_INVALID_MDIE)
304 reason = WLAN_REASON_INVALID_IE;
305 if (status == WLAN_STATUS_INVALID_FTIE)
306 reason = WLAN_REASON_INVALID_IE;
307 goto fail;
308 }
309 }
310 #endif /* CONFIG_IEEE80211R_AP */
311 } else if (hapd->conf->wps_state) {
312 #ifdef CONFIG_WPS
313 struct wpabuf *wps;
314
315 if (req_ies)
316 wps = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
317 WPS_IE_VENDOR_TYPE);
318 else
319 wps = NULL;
320 #ifdef CONFIG_WPS_STRICT
321 if (wps && wps_validate_assoc_req(wps) < 0) {
322 reason = WLAN_REASON_INVALID_IE;
323 status = WLAN_STATUS_INVALID_IE;
324 wpabuf_free(wps);
325 goto fail;
326 }
327 #endif /* CONFIG_WPS_STRICT */
328 if (wps) {
329 sta->flags |= WLAN_STA_WPS;
330 if (wps_is_20(wps)) {
331 wpa_printf(MSG_DEBUG,
332 "WPS: STA supports WPS 2.0");
333 sta->flags |= WLAN_STA_WPS2;
334 }
335 } else
336 sta->flags |= WLAN_STA_MAYBE_WPS;
337 wpabuf_free(wps);
338 #endif /* CONFIG_WPS */
339 #ifdef CONFIG_HS20
340 } else if (hapd->conf->osen) {
341 if (elems.osen == NULL) {
342 hostapd_logger(
343 hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
344 HOSTAPD_LEVEL_INFO,
345 "No HS 2.0 OSEN element in association request");
346 return WLAN_STATUS_INVALID_IE;
347 }
348
349 wpa_printf(MSG_DEBUG, "HS 2.0: OSEN association");
350 if (sta->wpa_sm == NULL)
351 sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
352 sta->addr, NULL);
353 if (sta->wpa_sm == NULL) {
354 wpa_printf(MSG_WARNING,
355 "Failed to initialize WPA state machine");
356 return WLAN_STATUS_UNSPECIFIED_FAILURE;
357 }
358 if (wpa_validate_osen(hapd->wpa_auth, sta->wpa_sm,
359 elems.osen - 2, elems.osen_len + 2) < 0)
360 return WLAN_STATUS_INVALID_IE;
361 #endif /* CONFIG_HS20 */
362 }
363
364 #ifdef CONFIG_MBO
365 if (hapd->conf->mbo_enabled && (hapd->conf->wpa & 2) &&
366 elems.mbo && sta->cell_capa && !(sta->flags & WLAN_STA_MFP) &&
367 hapd->conf->ieee80211w != NO_MGMT_FRAME_PROTECTION) {
368 wpa_printf(MSG_INFO,
369 "MBO: Reject WPA2 association without PMF");
370 return WLAN_STATUS_UNSPECIFIED_FAILURE;
371 }
372 #endif /* CONFIG_MBO */
373
374 #ifdef CONFIG_WPS
375 skip_wpa_check:
376 #endif /* CONFIG_WPS */
377
378 #ifdef CONFIG_IEEE80211R_AP
379 p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, buf, sizeof(buf),
380 sta->auth_alg, req_ies, req_ies_len);
381
382 hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf);
383
384 if (sta->auth_alg == WLAN_AUTH_FT)
385 ap_sta_set_authorized(hapd, sta, 1);
386 #else /* CONFIG_IEEE80211R_AP */
387 /* Keep compiler silent about unused variables */
388 if (status) {
389 }
390 #endif /* CONFIG_IEEE80211R_AP */
391
392 new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
393 sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
394 sta->flags &= ~WLAN_STA_WNM_SLEEP_MODE;
395
396 hostapd_set_sta_flags(hapd, sta);
397
398 if (reassoc && (sta->auth_alg == WLAN_AUTH_FT))
399 wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT);
400 else
401 wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
402
403 hostapd_new_assoc_sta(hapd, sta, !new_assoc);
404
405 ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
406
407 #ifdef CONFIG_P2P
408 if (req_ies) {
409 p2p_group_notif_assoc(hapd->p2p_group, sta->addr,
410 req_ies, req_ies_len);
411 }
412 #endif /* CONFIG_P2P */
413
414 return 0;
415
416 fail:
417 #ifdef CONFIG_IEEE80211R_AP
418 hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf);
419 #endif /* CONFIG_IEEE80211R_AP */
420 hostapd_drv_sta_disassoc(hapd, sta->addr, reason);
421 ap_free_sta(hapd, sta);
422 return -1;
423 }
424
425
hostapd_notif_disassoc(struct hostapd_data * hapd,const u8 * addr)426 void hostapd_notif_disassoc(struct hostapd_data *hapd, const u8 *addr)
427 {
428 struct sta_info *sta;
429
430 if (addr == NULL) {
431 /*
432 * This could potentially happen with unexpected event from the
433 * driver wrapper. This was seen at least in one case where the
434 * driver ended up reporting a station mode event while hostapd
435 * was running, so better make sure we stop processing such an
436 * event here.
437 */
438 wpa_printf(MSG_DEBUG,
439 "hostapd_notif_disassoc: Skip event with no address");
440 return;
441 }
442
443 hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
444 HOSTAPD_LEVEL_INFO, "disassociated");
445
446 sta = ap_get_sta(hapd, addr);
447 if (sta == NULL) {
448 wpa_printf(MSG_DEBUG,
449 "Disassociation notification for unknown STA "
450 MACSTR, MAC2STR(addr));
451 return;
452 }
453
454 ap_sta_set_authorized(hapd, sta, 0);
455 sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
456 wpa_auth_sm_event(sta->wpa_sm, WPA_DISASSOC);
457 sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
458 ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
459 ap_free_sta(hapd, sta);
460 }
461
462
hostapd_event_sta_low_ack(struct hostapd_data * hapd,const u8 * addr)463 void hostapd_event_sta_low_ack(struct hostapd_data *hapd, const u8 *addr)
464 {
465 struct sta_info *sta = ap_get_sta(hapd, addr);
466
467 if (!sta || !hapd->conf->disassoc_low_ack)
468 return;
469
470 hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
471 HOSTAPD_LEVEL_INFO,
472 "disconnected due to excessive missing ACKs");
473 hostapd_drv_sta_disassoc(hapd, addr, WLAN_REASON_DISASSOC_LOW_ACK);
474 ap_sta_disassociate(hapd, sta, WLAN_REASON_DISASSOC_LOW_ACK);
475 }
476
477
hostapd_event_ch_switch(struct hostapd_data * hapd,int freq,int ht,int offset,int width,int cf1,int cf2)478 void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht,
479 int offset, int width, int cf1, int cf2)
480 {
481 #ifdef NEED_AP_MLME
482 int channel, chwidth, is_dfs;
483 u8 seg0_idx = 0, seg1_idx = 0;
484
485 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
486 HOSTAPD_LEVEL_INFO,
487 "driver had channel switch: freq=%d, ht=%d, offset=%d, width=%d (%s), cf1=%d, cf2=%d",
488 freq, ht, offset, width, channel_width_to_string(width),
489 cf1, cf2);
490
491 hapd->iface->freq = freq;
492
493 channel = hostapd_hw_get_channel(hapd, freq);
494 if (!channel) {
495 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
496 HOSTAPD_LEVEL_WARNING,
497 "driver switched to bad channel!");
498 return;
499 }
500
501 switch (width) {
502 case CHAN_WIDTH_80:
503 chwidth = VHT_CHANWIDTH_80MHZ;
504 break;
505 case CHAN_WIDTH_80P80:
506 chwidth = VHT_CHANWIDTH_80P80MHZ;
507 break;
508 case CHAN_WIDTH_160:
509 chwidth = VHT_CHANWIDTH_160MHZ;
510 break;
511 case CHAN_WIDTH_20_NOHT:
512 case CHAN_WIDTH_20:
513 case CHAN_WIDTH_40:
514 default:
515 chwidth = VHT_CHANWIDTH_USE_HT;
516 break;
517 }
518
519 switch (hapd->iface->current_mode->mode) {
520 case HOSTAPD_MODE_IEEE80211A:
521 if (cf1 > 5000)
522 seg0_idx = (cf1 - 5000) / 5;
523 if (cf2 > 5000)
524 seg1_idx = (cf2 - 5000) / 5;
525 break;
526 default:
527 ieee80211_freq_to_chan(cf1, &seg0_idx);
528 ieee80211_freq_to_chan(cf2, &seg1_idx);
529 break;
530 }
531
532 hapd->iconf->channel = channel;
533 hapd->iconf->ieee80211n = ht;
534 if (!ht)
535 hapd->iconf->ieee80211ac = 0;
536 hapd->iconf->secondary_channel = offset;
537 hapd->iconf->vht_oper_chwidth = chwidth;
538 hapd->iconf->vht_oper_centr_freq_seg0_idx = seg0_idx;
539 hapd->iconf->vht_oper_centr_freq_seg1_idx = seg1_idx;
540
541 is_dfs = ieee80211_is_dfs(freq);
542
543 if (hapd->csa_in_progress &&
544 freq == hapd->cs_freq_params.freq) {
545 hostapd_cleanup_cs_params(hapd);
546 ieee802_11_set_beacon(hapd);
547
548 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_CSA_FINISHED
549 "freq=%d dfs=%d", freq, is_dfs);
550 } else if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) {
551 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_CSA_FINISHED
552 "freq=%d dfs=%d", freq, is_dfs);
553 }
554 #endif /* NEED_AP_MLME */
555 }
556
557
hostapd_event_connect_failed_reason(struct hostapd_data * hapd,const u8 * addr,int reason_code)558 void hostapd_event_connect_failed_reason(struct hostapd_data *hapd,
559 const u8 *addr, int reason_code)
560 {
561 switch (reason_code) {
562 case MAX_CLIENT_REACHED:
563 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_REJECTED_MAX_STA MACSTR,
564 MAC2STR(addr));
565 break;
566 case BLOCKED_CLIENT:
567 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_REJECTED_BLOCKED_STA MACSTR,
568 MAC2STR(addr));
569 break;
570 }
571 }
572
573
574 #ifdef CONFIG_ACS
hostapd_acs_channel_selected(struct hostapd_data * hapd,struct acs_selected_channels * acs_res)575 void hostapd_acs_channel_selected(struct hostapd_data *hapd,
576 struct acs_selected_channels *acs_res)
577 {
578 int ret, i;
579 int err = 0;
580
581 if (hapd->iconf->channel) {
582 wpa_printf(MSG_INFO, "ACS: Channel was already set to %d",
583 hapd->iconf->channel);
584 return;
585 }
586
587 if (!hapd->iface->current_mode) {
588 for (i = 0; i < hapd->iface->num_hw_features; i++) {
589 struct hostapd_hw_modes *mode =
590 &hapd->iface->hw_features[i];
591
592 if (mode->mode == acs_res->hw_mode) {
593 hapd->iface->current_mode = mode;
594 break;
595 }
596 }
597 if (!hapd->iface->current_mode) {
598 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
599 HOSTAPD_LEVEL_WARNING,
600 "driver selected to bad hw_mode");
601 err = 1;
602 goto out;
603 }
604 }
605
606 hapd->iface->freq = hostapd_hw_get_freq(hapd, acs_res->pri_channel);
607
608 if (!acs_res->pri_channel) {
609 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
610 HOSTAPD_LEVEL_WARNING,
611 "driver switched to bad channel");
612 err = 1;
613 goto out;
614 }
615
616 hapd->iconf->channel = acs_res->pri_channel;
617 hapd->iconf->acs = 1;
618
619 if (acs_res->sec_channel == 0)
620 hapd->iconf->secondary_channel = 0;
621 else if (acs_res->sec_channel < acs_res->pri_channel)
622 hapd->iconf->secondary_channel = -1;
623 else if (acs_res->sec_channel > acs_res->pri_channel)
624 hapd->iconf->secondary_channel = 1;
625 else {
626 wpa_printf(MSG_ERROR, "Invalid secondary channel!");
627 err = 1;
628 goto out;
629 }
630
631 if (hapd->iface->conf->ieee80211ac) {
632 /* set defaults for backwards compatibility */
633 hapd->iconf->vht_oper_centr_freq_seg1_idx = 0;
634 hapd->iconf->vht_oper_centr_freq_seg0_idx = 0;
635 hapd->iconf->vht_oper_chwidth = VHT_CHANWIDTH_USE_HT;
636 if (acs_res->ch_width == 80) {
637 hapd->iconf->vht_oper_centr_freq_seg0_idx =
638 acs_res->vht_seg0_center_ch;
639 hapd->iconf->vht_oper_chwidth = VHT_CHANWIDTH_80MHZ;
640 } else if (acs_res->ch_width == 160) {
641 if (acs_res->vht_seg1_center_ch == 0) {
642 hapd->iconf->vht_oper_centr_freq_seg0_idx =
643 acs_res->vht_seg0_center_ch;
644 hapd->iconf->vht_oper_chwidth =
645 VHT_CHANWIDTH_160MHZ;
646 } else {
647 hapd->iconf->vht_oper_centr_freq_seg0_idx =
648 acs_res->vht_seg0_center_ch;
649 hapd->iconf->vht_oper_centr_freq_seg1_idx =
650 acs_res->vht_seg1_center_ch;
651 hapd->iconf->vht_oper_chwidth =
652 VHT_CHANWIDTH_80P80MHZ;
653 }
654 }
655 }
656
657 out:
658 ret = hostapd_acs_completed(hapd->iface, err);
659 if (ret) {
660 wpa_printf(MSG_ERROR,
661 "ACS: Possibly channel configuration is invalid");
662 }
663 }
664 #endif /* CONFIG_ACS */
665
666
hostapd_probe_req_rx(struct hostapd_data * hapd,const u8 * sa,const u8 * da,const u8 * bssid,const u8 * ie,size_t ie_len,int ssi_signal)667 int hostapd_probe_req_rx(struct hostapd_data *hapd, const u8 *sa, const u8 *da,
668 const u8 *bssid, const u8 *ie, size_t ie_len,
669 int ssi_signal)
670 {
671 size_t i;
672 int ret = 0;
673
674 if (sa == NULL || ie == NULL)
675 return -1;
676
677 random_add_randomness(sa, ETH_ALEN);
678 for (i = 0; hapd->probereq_cb && i < hapd->num_probereq_cb; i++) {
679 if (hapd->probereq_cb[i].cb(hapd->probereq_cb[i].ctx,
680 sa, da, bssid, ie, ie_len,
681 ssi_signal) > 0) {
682 ret = 1;
683 break;
684 }
685 }
686 return ret;
687 }
688
689
690 #ifdef HOSTAPD
691
692 #ifdef CONFIG_IEEE80211R_AP
hostapd_notify_auth_ft_finish(void * ctx,const u8 * dst,const u8 * bssid,u16 auth_transaction,u16 status,const u8 * ies,size_t ies_len)693 static void hostapd_notify_auth_ft_finish(void *ctx, const u8 *dst,
694 const u8 *bssid,
695 u16 auth_transaction, u16 status,
696 const u8 *ies, size_t ies_len)
697 {
698 struct hostapd_data *hapd = ctx;
699 struct sta_info *sta;
700
701 sta = ap_get_sta(hapd, dst);
702 if (sta == NULL)
703 return;
704
705 hostapd_logger(hapd, dst, HOSTAPD_MODULE_IEEE80211,
706 HOSTAPD_LEVEL_DEBUG, "authentication OK (FT)");
707 sta->flags |= WLAN_STA_AUTH;
708
709 hostapd_sta_auth(hapd, dst, auth_transaction, status, ies, ies_len);
710 }
711 #endif /* CONFIG_IEEE80211R_AP */
712
713
hostapd_notif_auth(struct hostapd_data * hapd,struct auth_info * rx_auth)714 static void hostapd_notif_auth(struct hostapd_data *hapd,
715 struct auth_info *rx_auth)
716 {
717 struct sta_info *sta;
718 u16 status = WLAN_STATUS_SUCCESS;
719 u8 resp_ies[2 + WLAN_AUTH_CHALLENGE_LEN];
720 size_t resp_ies_len = 0;
721
722 sta = ap_get_sta(hapd, rx_auth->peer);
723 if (!sta) {
724 sta = ap_sta_add(hapd, rx_auth->peer);
725 if (sta == NULL) {
726 status = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA;
727 goto fail;
728 }
729 }
730 sta->flags &= ~WLAN_STA_PREAUTH;
731 ieee802_1x_notify_pre_auth(sta->eapol_sm, 0);
732 #ifdef CONFIG_IEEE80211R_AP
733 if (rx_auth->auth_type == WLAN_AUTH_FT && hapd->wpa_auth) {
734 sta->auth_alg = WLAN_AUTH_FT;
735 if (sta->wpa_sm == NULL)
736 sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
737 sta->addr, NULL);
738 if (sta->wpa_sm == NULL) {
739 wpa_printf(MSG_DEBUG,
740 "FT: Failed to initialize WPA state machine");
741 status = WLAN_STATUS_UNSPECIFIED_FAILURE;
742 goto fail;
743 }
744 wpa_ft_process_auth(sta->wpa_sm, rx_auth->bssid,
745 rx_auth->auth_transaction, rx_auth->ies,
746 rx_auth->ies_len,
747 hostapd_notify_auth_ft_finish, hapd);
748 return;
749 }
750 #endif /* CONFIG_IEEE80211R_AP */
751 fail:
752 hostapd_sta_auth(hapd, rx_auth->peer, rx_auth->auth_transaction + 1,
753 status, resp_ies, resp_ies_len);
754 }
755
756
hostapd_action_rx(struct hostapd_data * hapd,struct rx_mgmt * drv_mgmt)757 static void hostapd_action_rx(struct hostapd_data *hapd,
758 struct rx_mgmt *drv_mgmt)
759 {
760 struct ieee80211_mgmt *mgmt;
761 struct sta_info *sta;
762 size_t plen __maybe_unused;
763 u16 fc;
764
765 if (drv_mgmt->frame_len < 24 + 1)
766 return;
767
768 plen = drv_mgmt->frame_len - 24 - 1;
769
770 mgmt = (struct ieee80211_mgmt *) drv_mgmt->frame;
771 fc = le_to_host16(mgmt->frame_control);
772 if (WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_ACTION)
773 return; /* handled by the driver */
774
775 wpa_printf(MSG_DEBUG, "RX_ACTION cat %d action plen %d",
776 mgmt->u.action.category, (int) plen);
777
778 sta = ap_get_sta(hapd, mgmt->sa);
779 if (sta == NULL) {
780 wpa_printf(MSG_DEBUG, "%s: station not found", __func__);
781 return;
782 }
783 #ifdef CONFIG_IEEE80211R_AP
784 if (mgmt->u.action.category == WLAN_ACTION_FT) {
785 const u8 *payload = drv_mgmt->frame + 24 + 1;
786
787 wpa_ft_action_rx(sta->wpa_sm, payload, plen);
788 }
789 #endif /* CONFIG_IEEE80211R_AP */
790 #ifdef CONFIG_IEEE80211W
791 if (mgmt->u.action.category == WLAN_ACTION_SA_QUERY && plen >= 4) {
792 ieee802_11_sa_query_action(
793 hapd, mgmt->sa,
794 mgmt->u.action.u.sa_query_resp.action,
795 mgmt->u.action.u.sa_query_resp.trans_id);
796 }
797 #endif /* CONFIG_IEEE80211W */
798 #ifdef CONFIG_WNM
799 if (mgmt->u.action.category == WLAN_ACTION_WNM) {
800 ieee802_11_rx_wnm_action_ap(hapd, mgmt, drv_mgmt->frame_len);
801 }
802 #endif /* CONFIG_WNM */
803 #ifdef CONFIG_FST
804 if (mgmt->u.action.category == WLAN_ACTION_FST && hapd->iface->fst) {
805 fst_rx_action(hapd->iface->fst, mgmt, drv_mgmt->frame_len);
806 return;
807 }
808 #endif /* CONFIG_FST */
809
810 }
811
812
813 #ifdef NEED_AP_MLME
814
815 #define HAPD_BROADCAST ((struct hostapd_data *) -1)
816
get_hapd_bssid(struct hostapd_iface * iface,const u8 * bssid)817 static struct hostapd_data * get_hapd_bssid(struct hostapd_iface *iface,
818 const u8 *bssid)
819 {
820 size_t i;
821
822 if (bssid == NULL)
823 return NULL;
824 if (bssid[0] == 0xff && bssid[1] == 0xff && bssid[2] == 0xff &&
825 bssid[3] == 0xff && bssid[4] == 0xff && bssid[5] == 0xff)
826 return HAPD_BROADCAST;
827
828 for (i = 0; i < iface->num_bss; i++) {
829 if (os_memcmp(bssid, iface->bss[i]->own_addr, ETH_ALEN) == 0)
830 return iface->bss[i];
831 }
832
833 return NULL;
834 }
835
836
hostapd_rx_from_unknown_sta(struct hostapd_data * hapd,const u8 * bssid,const u8 * addr,int wds)837 static void hostapd_rx_from_unknown_sta(struct hostapd_data *hapd,
838 const u8 *bssid, const u8 *addr,
839 int wds)
840 {
841 hapd = get_hapd_bssid(hapd->iface, bssid);
842 if (hapd == NULL || hapd == HAPD_BROADCAST)
843 return;
844
845 ieee802_11_rx_from_unknown(hapd, addr, wds);
846 }
847
848
hostapd_mgmt_rx(struct hostapd_data * hapd,struct rx_mgmt * rx_mgmt)849 static int hostapd_mgmt_rx(struct hostapd_data *hapd, struct rx_mgmt *rx_mgmt)
850 {
851 struct hostapd_iface *iface = hapd->iface;
852 const struct ieee80211_hdr *hdr;
853 const u8 *bssid;
854 struct hostapd_frame_info fi;
855 int ret;
856
857 #ifdef CONFIG_TESTING_OPTIONS
858 if (hapd->ext_mgmt_frame_handling) {
859 size_t hex_len = 2 * rx_mgmt->frame_len + 1;
860 char *hex = os_malloc(hex_len);
861
862 if (hex) {
863 wpa_snprintf_hex(hex, hex_len, rx_mgmt->frame,
864 rx_mgmt->frame_len);
865 wpa_msg(hapd->msg_ctx, MSG_INFO, "MGMT-RX %s", hex);
866 os_free(hex);
867 }
868 return 1;
869 }
870 #endif /* CONFIG_TESTING_OPTIONS */
871
872 hdr = (const struct ieee80211_hdr *) rx_mgmt->frame;
873 bssid = get_hdr_bssid(hdr, rx_mgmt->frame_len);
874 if (bssid == NULL)
875 return 0;
876
877 hapd = get_hapd_bssid(iface, bssid);
878 if (hapd == NULL) {
879 u16 fc = le_to_host16(hdr->frame_control);
880
881 /*
882 * Drop frames to unknown BSSIDs except for Beacon frames which
883 * could be used to update neighbor information.
884 */
885 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
886 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
887 hapd = iface->bss[0];
888 else
889 return 0;
890 }
891
892 os_memset(&fi, 0, sizeof(fi));
893 fi.datarate = rx_mgmt->datarate;
894 fi.ssi_signal = rx_mgmt->ssi_signal;
895
896 if (hapd == HAPD_BROADCAST) {
897 size_t i;
898
899 ret = 0;
900 for (i = 0; i < iface->num_bss; i++) {
901 /* if bss is set, driver will call this function for
902 * each bss individually. */
903 if (rx_mgmt->drv_priv &&
904 (iface->bss[i]->drv_priv != rx_mgmt->drv_priv))
905 continue;
906
907 if (ieee802_11_mgmt(iface->bss[i], rx_mgmt->frame,
908 rx_mgmt->frame_len, &fi) > 0)
909 ret = 1;
910 }
911 } else
912 ret = ieee802_11_mgmt(hapd, rx_mgmt->frame, rx_mgmt->frame_len,
913 &fi);
914
915 random_add_randomness(&fi, sizeof(fi));
916
917 return ret;
918 }
919
920
hostapd_mgmt_tx_cb(struct hostapd_data * hapd,const u8 * buf,size_t len,u16 stype,int ok)921 static void hostapd_mgmt_tx_cb(struct hostapd_data *hapd, const u8 *buf,
922 size_t len, u16 stype, int ok)
923 {
924 struct ieee80211_hdr *hdr;
925 struct hostapd_data *orig_hapd = hapd;
926
927 hdr = (struct ieee80211_hdr *) buf;
928 hapd = get_hapd_bssid(hapd->iface, get_hdr_bssid(hdr, len));
929 if (!hapd)
930 return;
931 if (hapd == HAPD_BROADCAST) {
932 if (stype != WLAN_FC_STYPE_ACTION || len <= 25 ||
933 buf[24] != WLAN_ACTION_PUBLIC)
934 return;
935 hapd = get_hapd_bssid(orig_hapd->iface, hdr->addr2);
936 if (!hapd || hapd == HAPD_BROADCAST)
937 return;
938 /*
939 * Allow processing of TX status for a Public Action frame that
940 * used wildcard BBSID.
941 */
942 }
943 ieee802_11_mgmt_cb(hapd, buf, len, stype, ok);
944 }
945
946 #endif /* NEED_AP_MLME */
947
948
hostapd_event_new_sta(struct hostapd_data * hapd,const u8 * addr)949 static int hostapd_event_new_sta(struct hostapd_data *hapd, const u8 *addr)
950 {
951 struct sta_info *sta = ap_get_sta(hapd, addr);
952
953 if (sta)
954 return 0;
955
956 wpa_printf(MSG_DEBUG, "Data frame from unknown STA " MACSTR
957 " - adding a new STA", MAC2STR(addr));
958 sta = ap_sta_add(hapd, addr);
959 if (sta) {
960 hostapd_new_assoc_sta(hapd, sta, 0);
961 } else {
962 wpa_printf(MSG_DEBUG, "Failed to add STA entry for " MACSTR,
963 MAC2STR(addr));
964 return -1;
965 }
966
967 return 0;
968 }
969
970
hostapd_event_eapol_rx(struct hostapd_data * hapd,const u8 * src,const u8 * data,size_t data_len)971 static void hostapd_event_eapol_rx(struct hostapd_data *hapd, const u8 *src,
972 const u8 *data, size_t data_len)
973 {
974 struct hostapd_iface *iface = hapd->iface;
975 struct sta_info *sta;
976 size_t j;
977
978 for (j = 0; j < iface->num_bss; j++) {
979 sta = ap_get_sta(iface->bss[j], src);
980 if (sta && sta->flags & WLAN_STA_ASSOC) {
981 hapd = iface->bss[j];
982 break;
983 }
984 }
985
986 ieee802_1x_receive(hapd, src, data, data_len);
987 }
988
989 #endif /* HOSTAPD */
990
991
hostapd_get_mode_channel(struct hostapd_iface * iface,unsigned int freq)992 static struct hostapd_channel_data * hostapd_get_mode_channel(
993 struct hostapd_iface *iface, unsigned int freq)
994 {
995 int i;
996 struct hostapd_channel_data *chan;
997
998 for (i = 0; i < iface->current_mode->num_channels; i++) {
999 chan = &iface->current_mode->channels[i];
1000 if ((unsigned int) chan->freq == freq)
1001 return chan;
1002 }
1003
1004 return NULL;
1005 }
1006
1007
hostapd_update_nf(struct hostapd_iface * iface,struct hostapd_channel_data * chan,struct freq_survey * survey)1008 static void hostapd_update_nf(struct hostapd_iface *iface,
1009 struct hostapd_channel_data *chan,
1010 struct freq_survey *survey)
1011 {
1012 if (!iface->chans_surveyed) {
1013 chan->min_nf = survey->nf;
1014 iface->lowest_nf = survey->nf;
1015 } else {
1016 if (dl_list_empty(&chan->survey_list))
1017 chan->min_nf = survey->nf;
1018 else if (survey->nf < chan->min_nf)
1019 chan->min_nf = survey->nf;
1020 if (survey->nf < iface->lowest_nf)
1021 iface->lowest_nf = survey->nf;
1022 }
1023 }
1024
1025
hostapd_single_channel_get_survey(struct hostapd_iface * iface,struct survey_results * survey_res)1026 static void hostapd_single_channel_get_survey(struct hostapd_iface *iface,
1027 struct survey_results *survey_res)
1028 {
1029 struct hostapd_channel_data *chan;
1030 struct freq_survey *survey;
1031 u64 divisor, dividend;
1032
1033 survey = dl_list_first(&survey_res->survey_list, struct freq_survey,
1034 list);
1035 if (!survey || !survey->freq)
1036 return;
1037
1038 chan = hostapd_get_mode_channel(iface, survey->freq);
1039 if (!chan || chan->flag & HOSTAPD_CHAN_DISABLED)
1040 return;
1041
1042 wpa_printf(MSG_DEBUG,
1043 "Single Channel Survey: (freq=%d channel_time=%ld channel_time_busy=%ld)",
1044 survey->freq,
1045 (unsigned long int) survey->channel_time,
1046 (unsigned long int) survey->channel_time_busy);
1047
1048 if (survey->channel_time > iface->last_channel_time &&
1049 survey->channel_time > survey->channel_time_busy) {
1050 dividend = survey->channel_time_busy -
1051 iface->last_channel_time_busy;
1052 divisor = survey->channel_time - iface->last_channel_time;
1053
1054 iface->channel_utilization = dividend * 255 / divisor;
1055 wpa_printf(MSG_DEBUG, "Channel Utilization: %d",
1056 iface->channel_utilization);
1057 }
1058 iface->last_channel_time = survey->channel_time;
1059 iface->last_channel_time_busy = survey->channel_time_busy;
1060 }
1061
1062
hostapd_event_get_survey(struct hostapd_iface * iface,struct survey_results * survey_results)1063 void hostapd_event_get_survey(struct hostapd_iface *iface,
1064 struct survey_results *survey_results)
1065 {
1066 struct freq_survey *survey, *tmp;
1067 struct hostapd_channel_data *chan;
1068
1069 if (dl_list_empty(&survey_results->survey_list)) {
1070 wpa_printf(MSG_DEBUG, "No survey data received");
1071 return;
1072 }
1073
1074 if (survey_results->freq_filter) {
1075 hostapd_single_channel_get_survey(iface, survey_results);
1076 return;
1077 }
1078
1079 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list,
1080 struct freq_survey, list) {
1081 chan = hostapd_get_mode_channel(iface, survey->freq);
1082 if (!chan)
1083 continue;
1084 if (chan->flag & HOSTAPD_CHAN_DISABLED)
1085 continue;
1086
1087 dl_list_del(&survey->list);
1088 dl_list_add_tail(&chan->survey_list, &survey->list);
1089
1090 hostapd_update_nf(iface, chan, survey);
1091
1092 iface->chans_surveyed++;
1093 }
1094 }
1095
1096
1097 #ifdef HOSTAPD
1098 #ifdef NEED_AP_MLME
1099
hostapd_event_iface_unavailable(struct hostapd_data * hapd)1100 static void hostapd_event_iface_unavailable(struct hostapd_data *hapd)
1101 {
1102 wpa_printf(MSG_DEBUG, "Interface %s is unavailable -- stopped",
1103 hapd->conf->iface);
1104
1105 if (hapd->csa_in_progress) {
1106 wpa_printf(MSG_INFO, "CSA failed (%s was stopped)",
1107 hapd->conf->iface);
1108 hostapd_switch_channel_fallback(hapd->iface,
1109 &hapd->cs_freq_params);
1110 }
1111 }
1112
1113
hostapd_event_dfs_radar_detected(struct hostapd_data * hapd,struct dfs_event * radar)1114 static void hostapd_event_dfs_radar_detected(struct hostapd_data *hapd,
1115 struct dfs_event *radar)
1116 {
1117 wpa_printf(MSG_DEBUG, "DFS radar detected on %d MHz", radar->freq);
1118 hostapd_dfs_radar_detected(hapd->iface, radar->freq, radar->ht_enabled,
1119 radar->chan_offset, radar->chan_width,
1120 radar->cf1, radar->cf2);
1121 }
1122
1123
hostapd_event_dfs_cac_finished(struct hostapd_data * hapd,struct dfs_event * radar)1124 static void hostapd_event_dfs_cac_finished(struct hostapd_data *hapd,
1125 struct dfs_event *radar)
1126 {
1127 wpa_printf(MSG_DEBUG, "DFS CAC finished on %d MHz", radar->freq);
1128 hostapd_dfs_complete_cac(hapd->iface, 1, radar->freq, radar->ht_enabled,
1129 radar->chan_offset, radar->chan_width,
1130 radar->cf1, radar->cf2);
1131 }
1132
1133
hostapd_event_dfs_cac_aborted(struct hostapd_data * hapd,struct dfs_event * radar)1134 static void hostapd_event_dfs_cac_aborted(struct hostapd_data *hapd,
1135 struct dfs_event *radar)
1136 {
1137 wpa_printf(MSG_DEBUG, "DFS CAC aborted on %d MHz", radar->freq);
1138 hostapd_dfs_complete_cac(hapd->iface, 0, radar->freq, radar->ht_enabled,
1139 radar->chan_offset, radar->chan_width,
1140 radar->cf1, radar->cf2);
1141 }
1142
1143
hostapd_event_dfs_nop_finished(struct hostapd_data * hapd,struct dfs_event * radar)1144 static void hostapd_event_dfs_nop_finished(struct hostapd_data *hapd,
1145 struct dfs_event *radar)
1146 {
1147 wpa_printf(MSG_DEBUG, "DFS NOP finished on %d MHz", radar->freq);
1148 hostapd_dfs_nop_finished(hapd->iface, radar->freq, radar->ht_enabled,
1149 radar->chan_offset, radar->chan_width,
1150 radar->cf1, radar->cf2);
1151 }
1152
1153
hostapd_event_dfs_cac_started(struct hostapd_data * hapd,struct dfs_event * radar)1154 static void hostapd_event_dfs_cac_started(struct hostapd_data *hapd,
1155 struct dfs_event *radar)
1156 {
1157 wpa_printf(MSG_DEBUG, "DFS offload CAC started on %d MHz", radar->freq);
1158 hostapd_dfs_start_cac(hapd->iface, radar->freq, radar->ht_enabled,
1159 radar->chan_offset, radar->chan_width,
1160 radar->cf1, radar->cf2);
1161 }
1162
1163 #endif /* NEED_AP_MLME */
1164
1165
wpa_supplicant_event(void * ctx,enum wpa_event_type event,union wpa_event_data * data)1166 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
1167 union wpa_event_data *data)
1168 {
1169 struct hostapd_data *hapd = ctx;
1170 #ifndef CONFIG_NO_STDOUT_DEBUG
1171 int level = MSG_DEBUG;
1172
1173 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame &&
1174 data->rx_mgmt.frame_len >= 24) {
1175 const struct ieee80211_hdr *hdr;
1176 u16 fc;
1177
1178 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
1179 fc = le_to_host16(hdr->frame_control);
1180 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
1181 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
1182 level = MSG_EXCESSIVE;
1183 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
1184 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_REQ)
1185 level = MSG_EXCESSIVE;
1186 }
1187
1188 wpa_dbg(hapd->msg_ctx, level, "Event %s (%d) received",
1189 event_to_string(event), event);
1190 #endif /* CONFIG_NO_STDOUT_DEBUG */
1191
1192 switch (event) {
1193 case EVENT_MICHAEL_MIC_FAILURE:
1194 michael_mic_failure(hapd, data->michael_mic_failure.src, 1);
1195 break;
1196 case EVENT_SCAN_RESULTS:
1197 if (hapd->iface->scan_cb)
1198 hapd->iface->scan_cb(hapd->iface);
1199 break;
1200 case EVENT_WPS_BUTTON_PUSHED:
1201 hostapd_wps_button_pushed(hapd, NULL);
1202 break;
1203 #ifdef NEED_AP_MLME
1204 case EVENT_TX_STATUS:
1205 switch (data->tx_status.type) {
1206 case WLAN_FC_TYPE_MGMT:
1207 hostapd_mgmt_tx_cb(hapd, data->tx_status.data,
1208 data->tx_status.data_len,
1209 data->tx_status.stype,
1210 data->tx_status.ack);
1211 break;
1212 case WLAN_FC_TYPE_DATA:
1213 hostapd_tx_status(hapd, data->tx_status.dst,
1214 data->tx_status.data,
1215 data->tx_status.data_len,
1216 data->tx_status.ack);
1217 break;
1218 }
1219 break;
1220 case EVENT_EAPOL_TX_STATUS:
1221 hostapd_eapol_tx_status(hapd, data->eapol_tx_status.dst,
1222 data->eapol_tx_status.data,
1223 data->eapol_tx_status.data_len,
1224 data->eapol_tx_status.ack);
1225 break;
1226 case EVENT_DRIVER_CLIENT_POLL_OK:
1227 hostapd_client_poll_ok(hapd, data->client_poll.addr);
1228 break;
1229 case EVENT_RX_FROM_UNKNOWN:
1230 hostapd_rx_from_unknown_sta(hapd, data->rx_from_unknown.bssid,
1231 data->rx_from_unknown.addr,
1232 data->rx_from_unknown.wds);
1233 break;
1234 #endif /* NEED_AP_MLME */
1235 case EVENT_RX_MGMT:
1236 if (!data->rx_mgmt.frame)
1237 break;
1238 #ifdef NEED_AP_MLME
1239 if (hostapd_mgmt_rx(hapd, &data->rx_mgmt) > 0)
1240 break;
1241 #endif /* NEED_AP_MLME */
1242 hostapd_action_rx(hapd, &data->rx_mgmt);
1243 break;
1244 case EVENT_RX_PROBE_REQ:
1245 if (data->rx_probe_req.sa == NULL ||
1246 data->rx_probe_req.ie == NULL)
1247 break;
1248 hostapd_probe_req_rx(hapd, data->rx_probe_req.sa,
1249 data->rx_probe_req.da,
1250 data->rx_probe_req.bssid,
1251 data->rx_probe_req.ie,
1252 data->rx_probe_req.ie_len,
1253 data->rx_probe_req.ssi_signal);
1254 break;
1255 case EVENT_NEW_STA:
1256 hostapd_event_new_sta(hapd, data->new_sta.addr);
1257 break;
1258 case EVENT_EAPOL_RX:
1259 hostapd_event_eapol_rx(hapd, data->eapol_rx.src,
1260 data->eapol_rx.data,
1261 data->eapol_rx.data_len);
1262 break;
1263 case EVENT_ASSOC:
1264 if (!data)
1265 return;
1266 hostapd_notif_assoc(hapd, data->assoc_info.addr,
1267 data->assoc_info.req_ies,
1268 data->assoc_info.req_ies_len,
1269 data->assoc_info.reassoc);
1270 break;
1271 case EVENT_DISASSOC:
1272 if (data)
1273 hostapd_notif_disassoc(hapd, data->disassoc_info.addr);
1274 break;
1275 case EVENT_DEAUTH:
1276 if (data)
1277 hostapd_notif_disassoc(hapd, data->deauth_info.addr);
1278 break;
1279 case EVENT_STATION_LOW_ACK:
1280 if (!data)
1281 break;
1282 hostapd_event_sta_low_ack(hapd, data->low_ack.addr);
1283 break;
1284 case EVENT_AUTH:
1285 hostapd_notif_auth(hapd, &data->auth);
1286 break;
1287 case EVENT_CH_SWITCH:
1288 if (!data)
1289 break;
1290 hostapd_event_ch_switch(hapd, data->ch_switch.freq,
1291 data->ch_switch.ht_enabled,
1292 data->ch_switch.ch_offset,
1293 data->ch_switch.ch_width,
1294 data->ch_switch.cf1,
1295 data->ch_switch.cf2);
1296 break;
1297 case EVENT_CONNECT_FAILED_REASON:
1298 if (!data)
1299 break;
1300 hostapd_event_connect_failed_reason(
1301 hapd, data->connect_failed_reason.addr,
1302 data->connect_failed_reason.code);
1303 break;
1304 case EVENT_SURVEY:
1305 hostapd_event_get_survey(hapd->iface, &data->survey_results);
1306 break;
1307 #ifdef NEED_AP_MLME
1308 case EVENT_INTERFACE_UNAVAILABLE:
1309 hostapd_event_iface_unavailable(hapd);
1310 break;
1311 case EVENT_DFS_RADAR_DETECTED:
1312 if (!data)
1313 break;
1314 hostapd_event_dfs_radar_detected(hapd, &data->dfs_event);
1315 break;
1316 case EVENT_DFS_CAC_FINISHED:
1317 if (!data)
1318 break;
1319 hostapd_event_dfs_cac_finished(hapd, &data->dfs_event);
1320 break;
1321 case EVENT_DFS_CAC_ABORTED:
1322 if (!data)
1323 break;
1324 hostapd_event_dfs_cac_aborted(hapd, &data->dfs_event);
1325 break;
1326 case EVENT_DFS_NOP_FINISHED:
1327 if (!data)
1328 break;
1329 hostapd_event_dfs_nop_finished(hapd, &data->dfs_event);
1330 break;
1331 case EVENT_CHANNEL_LIST_CHANGED:
1332 /* channel list changed (regulatory?), update channel list */
1333 /* TODO: check this. hostapd_get_hw_features() initializes
1334 * too much stuff. */
1335 /* hostapd_get_hw_features(hapd->iface); */
1336 hostapd_channel_list_updated(
1337 hapd->iface, data->channel_list_changed.initiator);
1338 break;
1339 case EVENT_DFS_CAC_STARTED:
1340 if (!data)
1341 break;
1342 hostapd_event_dfs_cac_started(hapd, &data->dfs_event);
1343 break;
1344 #endif /* NEED_AP_MLME */
1345 case EVENT_INTERFACE_ENABLED:
1346 wpa_msg(hapd->msg_ctx, MSG_INFO, INTERFACE_ENABLED);
1347 if (hapd->disabled && hapd->started) {
1348 hapd->disabled = 0;
1349 /*
1350 * Try to re-enable interface if the driver stopped it
1351 * when the interface got disabled.
1352 */
1353 wpa_auth_reconfig_group_keys(hapd->wpa_auth);
1354 hapd->reenable_beacon = 1;
1355 ieee802_11_set_beacon(hapd);
1356 }
1357 break;
1358 case EVENT_INTERFACE_DISABLED:
1359 hostapd_free_stas(hapd);
1360 wpa_msg(hapd->msg_ctx, MSG_INFO, INTERFACE_DISABLED);
1361 hapd->disabled = 1;
1362 break;
1363 #ifdef CONFIG_ACS
1364 case EVENT_ACS_CHANNEL_SELECTED:
1365 hostapd_acs_channel_selected(hapd,
1366 &data->acs_selected_channels);
1367 break;
1368 #endif /* CONFIG_ACS */
1369 default:
1370 wpa_printf(MSG_DEBUG, "Unknown event %d", event);
1371 break;
1372 }
1373 }
1374
1375
wpa_supplicant_event_global(void * ctx,enum wpa_event_type event,union wpa_event_data * data)1376 void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event,
1377 union wpa_event_data *data)
1378 {
1379 struct hapd_interfaces *interfaces = ctx;
1380 struct hostapd_data *hapd;
1381
1382 if (event != EVENT_INTERFACE_STATUS)
1383 return;
1384
1385 hapd = hostapd_get_iface(interfaces, data->interface_status.ifname);
1386 if (hapd && hapd->driver && hapd->driver->get_ifindex &&
1387 hapd->drv_priv) {
1388 unsigned int ifindex;
1389
1390 ifindex = hapd->driver->get_ifindex(hapd->drv_priv);
1391 if (ifindex != data->interface_status.ifindex) {
1392 wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
1393 "interface status ifindex %d mismatch (%d)",
1394 ifindex, data->interface_status.ifindex);
1395 return;
1396 }
1397 }
1398 if (hapd)
1399 wpa_supplicant_event(hapd, event, data);
1400 }
1401
1402 #endif /* HOSTAPD */
1403