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) || defined(CONFIG_IEEE80211W)
49 u8 buf[sizeof(struct ieee80211_mgmt) + 1024];
50 u8 *p = buf;
51 #endif /* CONFIG_IEEE80211R || 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 res = hostapd_check_acl(hapd, addr, NULL);
120 if (res != HOSTAPD_ACL_ACCEPT) {
121 wpa_printf(MSG_INFO, "STA " MACSTR " not allowed to connect",
122 MAC2STR(addr));
123 reason = WLAN_REASON_UNSPECIFIED;
124 goto fail;
125 }
126
127 #ifdef CONFIG_P2P
128 if (elems.p2p) {
129 wpabuf_free(sta->p2p_ie);
130 sta->p2p_ie = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
131 P2P_IE_VENDOR_TYPE);
132 if (sta->p2p_ie)
133 p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie);
134 }
135 #endif /* CONFIG_P2P */
136
137 #ifdef CONFIG_IEEE80211N
138 #ifdef NEED_AP_MLME
139 if (elems.ht_capabilities &&
140 (hapd->iface->conf->ht_capab &
141 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) {
142 struct ieee80211_ht_capabilities *ht_cap =
143 (struct ieee80211_ht_capabilities *)
144 elems.ht_capabilities;
145
146 if (le_to_host16(ht_cap->ht_capabilities_info) &
147 HT_CAP_INFO_40MHZ_INTOLERANT)
148 ht40_intolerant_add(hapd->iface, sta);
149 }
150 #endif /* NEED_AP_MLME */
151 #endif /* CONFIG_IEEE80211N */
152
153 #ifdef CONFIG_INTERWORKING
154 if (elems.ext_capab && elems.ext_capab_len > 4) {
155 if (elems.ext_capab[4] & 0x01)
156 sta->qos_map_enabled = 1;
157 }
158 #endif /* CONFIG_INTERWORKING */
159
160 #ifdef CONFIG_HS20
161 wpabuf_free(sta->hs20_ie);
162 if (elems.hs20 && elems.hs20_len > 4) {
163 sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4,
164 elems.hs20_len - 4);
165 } else
166 sta->hs20_ie = NULL;
167 #endif /* CONFIG_HS20 */
168
169 #ifdef CONFIG_FST
170 wpabuf_free(sta->mb_ies);
171 if (hapd->iface->fst)
172 sta->mb_ies = mb_ies_by_info(&elems.mb_ies);
173 else
174 sta->mb_ies = NULL;
175 #endif /* CONFIG_FST */
176
177 mbo_ap_check_sta_assoc(hapd, sta, &elems);
178
179 ap_copy_sta_supp_op_classes(sta, elems.supp_op_classes,
180 elems.supp_op_classes_len);
181
182 if (hapd->conf->wpa) {
183 if (ie == NULL || ielen == 0) {
184 #ifdef CONFIG_WPS
185 if (hapd->conf->wps_state) {
186 wpa_printf(MSG_DEBUG,
187 "STA did not include WPA/RSN IE in (Re)Association Request - possible WPS use");
188 sta->flags |= WLAN_STA_MAYBE_WPS;
189 goto skip_wpa_check;
190 }
191 #endif /* CONFIG_WPS */
192
193 wpa_printf(MSG_DEBUG, "No WPA/RSN IE from STA");
194 return -1;
195 }
196 #ifdef CONFIG_WPS
197 if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 &&
198 os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) {
199 struct wpabuf *wps;
200
201 sta->flags |= WLAN_STA_WPS;
202 wps = ieee802_11_vendor_ie_concat(ie, ielen,
203 WPS_IE_VENDOR_TYPE);
204 if (wps) {
205 if (wps_is_20(wps)) {
206 wpa_printf(MSG_DEBUG,
207 "WPS: STA supports WPS 2.0");
208 sta->flags |= WLAN_STA_WPS2;
209 }
210 wpabuf_free(wps);
211 }
212 goto skip_wpa_check;
213 }
214 #endif /* CONFIG_WPS */
215
216 if (sta->wpa_sm == NULL)
217 sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
218 sta->addr,
219 p2p_dev_addr);
220 if (sta->wpa_sm == NULL) {
221 wpa_printf(MSG_ERROR,
222 "Failed to initialize WPA state machine");
223 return -1;
224 }
225 res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
226 ie, ielen,
227 elems.mdie, elems.mdie_len);
228 if (res != WPA_IE_OK) {
229 wpa_printf(MSG_DEBUG,
230 "WPA/RSN information element rejected? (res %u)",
231 res);
232 wpa_hexdump(MSG_DEBUG, "IE", ie, ielen);
233 if (res == WPA_INVALID_GROUP) {
234 reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
235 status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
236 } else if (res == WPA_INVALID_PAIRWISE) {
237 reason = WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID;
238 status = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID;
239 } else if (res == WPA_INVALID_AKMP) {
240 reason = WLAN_REASON_AKMP_NOT_VALID;
241 status = WLAN_STATUS_AKMP_NOT_VALID;
242 }
243 #ifdef CONFIG_IEEE80211W
244 else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) {
245 reason = WLAN_REASON_INVALID_IE;
246 status = WLAN_STATUS_INVALID_IE;
247 } else if (res == WPA_INVALID_MGMT_GROUP_CIPHER) {
248 reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
249 status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
250 }
251 #endif /* CONFIG_IEEE80211W */
252 else {
253 reason = WLAN_REASON_INVALID_IE;
254 status = WLAN_STATUS_INVALID_IE;
255 }
256 goto fail;
257 }
258 #ifdef CONFIG_IEEE80211W
259 if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
260 sta->sa_query_count > 0)
261 ap_check_sa_query_timeout(hapd, sta);
262 if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
263 (sta->auth_alg != WLAN_AUTH_FT)) {
264 /*
265 * STA has already been associated with MFP and SA
266 * Query timeout has not been reached. Reject the
267 * association attempt temporarily and start SA Query,
268 * if one is not pending.
269 */
270
271 if (sta->sa_query_count == 0)
272 ap_sta_start_sa_query(hapd, sta);
273
274 status = WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY;
275
276 p = hostapd_eid_assoc_comeback_time(hapd, sta, p);
277
278 hostapd_sta_assoc(hapd, addr, reassoc, status, buf,
279 p - buf);
280 return 0;
281 }
282
283 if (wpa_auth_uses_mfp(sta->wpa_sm))
284 sta->flags |= WLAN_STA_MFP;
285 else
286 sta->flags &= ~WLAN_STA_MFP;
287 #endif /* CONFIG_IEEE80211W */
288
289 #ifdef CONFIG_IEEE80211R
290 if (sta->auth_alg == WLAN_AUTH_FT) {
291 status = wpa_ft_validate_reassoc(sta->wpa_sm, req_ies,
292 req_ies_len);
293 if (status != WLAN_STATUS_SUCCESS) {
294 if (status == WLAN_STATUS_INVALID_PMKID)
295 reason = WLAN_REASON_INVALID_IE;
296 if (status == WLAN_STATUS_INVALID_MDIE)
297 reason = WLAN_REASON_INVALID_IE;
298 if (status == WLAN_STATUS_INVALID_FTIE)
299 reason = WLAN_REASON_INVALID_IE;
300 goto fail;
301 }
302 }
303 #endif /* CONFIG_IEEE80211R */
304 } else if (hapd->conf->wps_state) {
305 #ifdef CONFIG_WPS
306 struct wpabuf *wps;
307
308 if (req_ies)
309 wps = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
310 WPS_IE_VENDOR_TYPE);
311 else
312 wps = NULL;
313 #ifdef CONFIG_WPS_STRICT
314 if (wps && wps_validate_assoc_req(wps) < 0) {
315 reason = WLAN_REASON_INVALID_IE;
316 status = WLAN_STATUS_INVALID_IE;
317 wpabuf_free(wps);
318 goto fail;
319 }
320 #endif /* CONFIG_WPS_STRICT */
321 if (wps) {
322 sta->flags |= WLAN_STA_WPS;
323 if (wps_is_20(wps)) {
324 wpa_printf(MSG_DEBUG,
325 "WPS: STA supports WPS 2.0");
326 sta->flags |= WLAN_STA_WPS2;
327 }
328 } else
329 sta->flags |= WLAN_STA_MAYBE_WPS;
330 wpabuf_free(wps);
331 #endif /* CONFIG_WPS */
332 #ifdef CONFIG_HS20
333 } else if (hapd->conf->osen) {
334 if (elems.osen == NULL) {
335 hostapd_logger(
336 hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
337 HOSTAPD_LEVEL_INFO,
338 "No HS 2.0 OSEN element in association request");
339 return WLAN_STATUS_INVALID_IE;
340 }
341
342 wpa_printf(MSG_DEBUG, "HS 2.0: OSEN association");
343 if (sta->wpa_sm == NULL)
344 sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
345 sta->addr, NULL);
346 if (sta->wpa_sm == NULL) {
347 wpa_printf(MSG_WARNING,
348 "Failed to initialize WPA state machine");
349 return WLAN_STATUS_UNSPECIFIED_FAILURE;
350 }
351 if (wpa_validate_osen(hapd->wpa_auth, sta->wpa_sm,
352 elems.osen - 2, elems.osen_len + 2) < 0)
353 return WLAN_STATUS_INVALID_IE;
354 #endif /* CONFIG_HS20 */
355 }
356
357 #ifdef CONFIG_MBO
358 if (hapd->conf->mbo_enabled && (hapd->conf->wpa & 2) &&
359 elems.mbo && sta->cell_capa && !(sta->flags & WLAN_STA_MFP) &&
360 hapd->conf->ieee80211w != NO_MGMT_FRAME_PROTECTION) {
361 wpa_printf(MSG_INFO,
362 "MBO: Reject WPA2 association without PMF");
363 return WLAN_STATUS_UNSPECIFIED_FAILURE;
364 }
365 #endif /* CONFIG_MBO */
366
367 #ifdef CONFIG_WPS
368 skip_wpa_check:
369 #endif /* CONFIG_WPS */
370
371 #ifdef CONFIG_IEEE80211R
372 p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, buf, sizeof(buf),
373 sta->auth_alg, req_ies, req_ies_len);
374
375 hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf);
376
377 if (sta->auth_alg == WLAN_AUTH_FT)
378 ap_sta_set_authorized(hapd, sta, 1);
379 #else /* CONFIG_IEEE80211R */
380 /* Keep compiler silent about unused variables */
381 if (status) {
382 }
383 #endif /* CONFIG_IEEE80211R */
384
385 new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
386 sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
387 sta->flags &= ~WLAN_STA_WNM_SLEEP_MODE;
388
389 hostapd_set_sta_flags(hapd, sta);
390
391 if (reassoc && (sta->auth_alg == WLAN_AUTH_FT))
392 wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT);
393 else
394 wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
395
396 hostapd_new_assoc_sta(hapd, sta, !new_assoc);
397
398 ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
399
400 #ifdef CONFIG_P2P
401 if (req_ies) {
402 p2p_group_notif_assoc(hapd->p2p_group, sta->addr,
403 req_ies, req_ies_len);
404 }
405 #endif /* CONFIG_P2P */
406
407 return 0;
408
409 fail:
410 #ifdef CONFIG_IEEE80211R
411 hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf);
412 #endif /* CONFIG_IEEE80211R */
413 hostapd_drv_sta_disassoc(hapd, sta->addr, reason);
414 ap_free_sta(hapd, sta);
415 return -1;
416 }
417
418
hostapd_notif_disassoc(struct hostapd_data * hapd,const u8 * addr)419 void hostapd_notif_disassoc(struct hostapd_data *hapd, const u8 *addr)
420 {
421 struct sta_info *sta;
422
423 if (addr == NULL) {
424 /*
425 * This could potentially happen with unexpected event from the
426 * driver wrapper. This was seen at least in one case where the
427 * driver ended up reporting a station mode event while hostapd
428 * was running, so better make sure we stop processing such an
429 * event here.
430 */
431 wpa_printf(MSG_DEBUG,
432 "hostapd_notif_disassoc: Skip event with no address");
433 return;
434 }
435
436 hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
437 HOSTAPD_LEVEL_INFO, "disassociated");
438
439 sta = ap_get_sta(hapd, addr);
440 if (sta == NULL) {
441 wpa_printf(MSG_DEBUG,
442 "Disassociation notification for unknown STA "
443 MACSTR, MAC2STR(addr));
444 return;
445 }
446
447 ap_sta_set_authorized(hapd, sta, 0);
448 sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
449 wpa_auth_sm_event(sta->wpa_sm, WPA_DISASSOC);
450 sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
451 ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
452 ap_free_sta(hapd, sta);
453 }
454
455
hostapd_event_sta_low_ack(struct hostapd_data * hapd,const u8 * addr)456 void hostapd_event_sta_low_ack(struct hostapd_data *hapd, const u8 *addr)
457 {
458 struct sta_info *sta = ap_get_sta(hapd, addr);
459
460 if (!sta || !hapd->conf->disassoc_low_ack)
461 return;
462
463 hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
464 HOSTAPD_LEVEL_INFO,
465 "disconnected due to excessive missing ACKs");
466 hostapd_drv_sta_disassoc(hapd, addr, WLAN_REASON_DISASSOC_LOW_ACK);
467 if (sta)
468 ap_sta_disassociate(hapd, sta, WLAN_REASON_DISASSOC_LOW_ACK);
469 }
470
471
hostapd_event_ch_switch(struct hostapd_data * hapd,int freq,int ht,int offset,int width,int cf1,int cf2)472 void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht,
473 int offset, int width, int cf1, int cf2)
474 {
475 #ifdef NEED_AP_MLME
476 int channel, chwidth, is_dfs;
477 u8 seg0_idx = 0, seg1_idx = 0;
478
479 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
480 HOSTAPD_LEVEL_INFO,
481 "driver had channel switch: freq=%d, ht=%d, offset=%d, width=%d (%s), cf1=%d, cf2=%d",
482 freq, ht, offset, width, channel_width_to_string(width),
483 cf1, cf2);
484
485 hapd->iface->freq = freq;
486
487 channel = hostapd_hw_get_channel(hapd, freq);
488 if (!channel) {
489 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
490 HOSTAPD_LEVEL_WARNING,
491 "driver switched to bad channel!");
492 return;
493 }
494
495 switch (width) {
496 case CHAN_WIDTH_80:
497 chwidth = VHT_CHANWIDTH_80MHZ;
498 break;
499 case CHAN_WIDTH_80P80:
500 chwidth = VHT_CHANWIDTH_80P80MHZ;
501 break;
502 case CHAN_WIDTH_160:
503 chwidth = VHT_CHANWIDTH_160MHZ;
504 break;
505 case CHAN_WIDTH_20_NOHT:
506 case CHAN_WIDTH_20:
507 case CHAN_WIDTH_40:
508 default:
509 chwidth = VHT_CHANWIDTH_USE_HT;
510 break;
511 }
512
513 switch (hapd->iface->current_mode->mode) {
514 case HOSTAPD_MODE_IEEE80211A:
515 if (cf1 > 5000)
516 seg0_idx = (cf1 - 5000) / 5;
517 if (cf2 > 5000)
518 seg1_idx = (cf2 - 5000) / 5;
519 break;
520 default:
521 ieee80211_freq_to_chan(cf1, &seg0_idx);
522 ieee80211_freq_to_chan(cf2, &seg1_idx);
523 break;
524 }
525
526 hapd->iconf->channel = channel;
527 hapd->iconf->ieee80211n = ht;
528 if (!ht)
529 hapd->iconf->ieee80211ac = 0;
530 hapd->iconf->secondary_channel = offset;
531 hapd->iconf->vht_oper_chwidth = chwidth;
532 hapd->iconf->vht_oper_centr_freq_seg0_idx = seg0_idx;
533 hapd->iconf->vht_oper_centr_freq_seg1_idx = seg1_idx;
534
535 is_dfs = ieee80211_is_dfs(freq);
536
537 if (hapd->csa_in_progress &&
538 freq == hapd->cs_freq_params.freq) {
539 hostapd_cleanup_cs_params(hapd);
540 ieee802_11_set_beacon(hapd);
541
542 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_CSA_FINISHED
543 "freq=%d dfs=%d", freq, is_dfs);
544 } else if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) {
545 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_CSA_FINISHED
546 "freq=%d dfs=%d", freq, is_dfs);
547 }
548 #endif /* NEED_AP_MLME */
549 }
550
551
hostapd_event_connect_failed_reason(struct hostapd_data * hapd,const u8 * addr,int reason_code)552 void hostapd_event_connect_failed_reason(struct hostapd_data *hapd,
553 const u8 *addr, int reason_code)
554 {
555 switch (reason_code) {
556 case MAX_CLIENT_REACHED:
557 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_REJECTED_MAX_STA MACSTR,
558 MAC2STR(addr));
559 break;
560 case BLOCKED_CLIENT:
561 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_REJECTED_BLOCKED_STA MACSTR,
562 MAC2STR(addr));
563 break;
564 }
565 }
566
567
568 #ifdef CONFIG_ACS
hostapd_acs_channel_selected(struct hostapd_data * hapd,struct acs_selected_channels * acs_res)569 void hostapd_acs_channel_selected(struct hostapd_data *hapd,
570 struct acs_selected_channels *acs_res)
571 {
572 int ret, i;
573 int err = 0;
574
575 if (hapd->iconf->channel) {
576 wpa_printf(MSG_INFO, "ACS: Channel was already set to %d",
577 hapd->iconf->channel);
578 return;
579 }
580
581 if (!hapd->iface->current_mode) {
582 for (i = 0; i < hapd->iface->num_hw_features; i++) {
583 struct hostapd_hw_modes *mode =
584 &hapd->iface->hw_features[i];
585
586 if (mode->mode == acs_res->hw_mode) {
587 hapd->iface->current_mode = mode;
588 break;
589 }
590 }
591 if (!hapd->iface->current_mode) {
592 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
593 HOSTAPD_LEVEL_WARNING,
594 "driver selected to bad hw_mode");
595 err = 1;
596 goto out;
597 }
598 }
599
600 hapd->iface->freq = hostapd_hw_get_freq(hapd, acs_res->pri_channel);
601
602 if (!acs_res->pri_channel) {
603 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
604 HOSTAPD_LEVEL_WARNING,
605 "driver switched to bad channel");
606 err = 1;
607 goto out;
608 }
609
610 hapd->iconf->channel = acs_res->pri_channel;
611 hapd->iconf->acs = 1;
612
613 if (acs_res->sec_channel == 0)
614 hapd->iconf->secondary_channel = 0;
615 else if (acs_res->sec_channel < acs_res->pri_channel)
616 hapd->iconf->secondary_channel = -1;
617 else if (acs_res->sec_channel > acs_res->pri_channel)
618 hapd->iconf->secondary_channel = 1;
619 else {
620 wpa_printf(MSG_ERROR, "Invalid secondary channel!");
621 err = 1;
622 goto out;
623 }
624
625 if (hapd->iface->conf->ieee80211ac) {
626 /* set defaults for backwards compatibility */
627 hapd->iconf->vht_oper_centr_freq_seg1_idx = 0;
628 hapd->iconf->vht_oper_centr_freq_seg0_idx = 0;
629 hapd->iconf->vht_oper_chwidth = VHT_CHANWIDTH_USE_HT;
630 if (acs_res->ch_width == 80) {
631 hapd->iconf->vht_oper_centr_freq_seg0_idx =
632 acs_res->vht_seg0_center_ch;
633 hapd->iconf->vht_oper_chwidth = VHT_CHANWIDTH_80MHZ;
634 } else if (acs_res->ch_width == 160) {
635 if (acs_res->vht_seg1_center_ch == 0) {
636 hapd->iconf->vht_oper_centr_freq_seg0_idx =
637 acs_res->vht_seg0_center_ch;
638 hapd->iconf->vht_oper_chwidth =
639 VHT_CHANWIDTH_160MHZ;
640 } else {
641 hapd->iconf->vht_oper_centr_freq_seg0_idx =
642 acs_res->vht_seg0_center_ch;
643 hapd->iconf->vht_oper_centr_freq_seg1_idx =
644 acs_res->vht_seg1_center_ch;
645 hapd->iconf->vht_oper_chwidth =
646 VHT_CHANWIDTH_80P80MHZ;
647 }
648 }
649 }
650
651 out:
652 ret = hostapd_acs_completed(hapd->iface, err);
653 if (ret) {
654 wpa_printf(MSG_ERROR,
655 "ACS: Possibly channel configuration is invalid");
656 }
657 }
658 #endif /* CONFIG_ACS */
659
660
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)661 int hostapd_probe_req_rx(struct hostapd_data *hapd, const u8 *sa, const u8 *da,
662 const u8 *bssid, const u8 *ie, size_t ie_len,
663 int ssi_signal)
664 {
665 size_t i;
666 int ret = 0;
667
668 if (sa == NULL || ie == NULL)
669 return -1;
670
671 random_add_randomness(sa, ETH_ALEN);
672 for (i = 0; hapd->probereq_cb && i < hapd->num_probereq_cb; i++) {
673 if (hapd->probereq_cb[i].cb(hapd->probereq_cb[i].ctx,
674 sa, da, bssid, ie, ie_len,
675 ssi_signal) > 0) {
676 ret = 1;
677 break;
678 }
679 }
680 return ret;
681 }
682
683
684 #ifdef HOSTAPD
685
686 #ifdef CONFIG_IEEE80211R
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)687 static void hostapd_notify_auth_ft_finish(void *ctx, const u8 *dst,
688 const u8 *bssid,
689 u16 auth_transaction, u16 status,
690 const u8 *ies, size_t ies_len)
691 {
692 struct hostapd_data *hapd = ctx;
693 struct sta_info *sta;
694
695 sta = ap_get_sta(hapd, dst);
696 if (sta == NULL)
697 return;
698
699 hostapd_logger(hapd, dst, HOSTAPD_MODULE_IEEE80211,
700 HOSTAPD_LEVEL_DEBUG, "authentication OK (FT)");
701 sta->flags |= WLAN_STA_AUTH;
702
703 hostapd_sta_auth(hapd, dst, auth_transaction, status, ies, ies_len);
704 }
705 #endif /* CONFIG_IEEE80211R */
706
707
hostapd_notif_auth(struct hostapd_data * hapd,struct auth_info * rx_auth)708 static void hostapd_notif_auth(struct hostapd_data *hapd,
709 struct auth_info *rx_auth)
710 {
711 struct sta_info *sta;
712 u16 status = WLAN_STATUS_SUCCESS;
713 u8 resp_ies[2 + WLAN_AUTH_CHALLENGE_LEN];
714 size_t resp_ies_len = 0;
715
716 sta = ap_get_sta(hapd, rx_auth->peer);
717 if (!sta) {
718 sta = ap_sta_add(hapd, rx_auth->peer);
719 if (sta == NULL) {
720 status = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA;
721 goto fail;
722 }
723 }
724 sta->flags &= ~WLAN_STA_PREAUTH;
725 ieee802_1x_notify_pre_auth(sta->eapol_sm, 0);
726 #ifdef CONFIG_IEEE80211R
727 if (rx_auth->auth_type == WLAN_AUTH_FT && hapd->wpa_auth) {
728 sta->auth_alg = WLAN_AUTH_FT;
729 if (sta->wpa_sm == NULL)
730 sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
731 sta->addr, NULL);
732 if (sta->wpa_sm == NULL) {
733 wpa_printf(MSG_DEBUG,
734 "FT: Failed to initialize WPA state machine");
735 status = WLAN_STATUS_UNSPECIFIED_FAILURE;
736 goto fail;
737 }
738 wpa_ft_process_auth(sta->wpa_sm, rx_auth->bssid,
739 rx_auth->auth_transaction, rx_auth->ies,
740 rx_auth->ies_len,
741 hostapd_notify_auth_ft_finish, hapd);
742 return;
743 }
744 #endif /* CONFIG_IEEE80211R */
745 fail:
746 hostapd_sta_auth(hapd, rx_auth->peer, rx_auth->auth_transaction + 1,
747 status, resp_ies, resp_ies_len);
748 }
749
750
hostapd_action_rx(struct hostapd_data * hapd,struct rx_mgmt * drv_mgmt)751 static void hostapd_action_rx(struct hostapd_data *hapd,
752 struct rx_mgmt *drv_mgmt)
753 {
754 struct ieee80211_mgmt *mgmt;
755 struct sta_info *sta;
756 size_t plen __maybe_unused;
757 u16 fc;
758
759 if (drv_mgmt->frame_len < 24 + 1)
760 return;
761
762 plen = drv_mgmt->frame_len - 24 - 1;
763
764 mgmt = (struct ieee80211_mgmt *) drv_mgmt->frame;
765 fc = le_to_host16(mgmt->frame_control);
766 if (WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_ACTION)
767 return; /* handled by the driver */
768
769 wpa_printf(MSG_DEBUG, "RX_ACTION cat %d action plen %d",
770 mgmt->u.action.category, (int) plen);
771
772 sta = ap_get_sta(hapd, mgmt->sa);
773 if (sta == NULL) {
774 wpa_printf(MSG_DEBUG, "%s: station not found", __func__);
775 return;
776 }
777 #ifdef CONFIG_IEEE80211R
778 if (mgmt->u.action.category == WLAN_ACTION_FT) {
779 const u8 *payload = drv_mgmt->frame + 24 + 1;
780
781 wpa_ft_action_rx(sta->wpa_sm, payload, plen);
782 }
783 #endif /* CONFIG_IEEE80211R */
784 #ifdef CONFIG_IEEE80211W
785 if (mgmt->u.action.category == WLAN_ACTION_SA_QUERY && plen >= 4) {
786 ieee802_11_sa_query_action(
787 hapd, mgmt->sa,
788 mgmt->u.action.u.sa_query_resp.action,
789 mgmt->u.action.u.sa_query_resp.trans_id);
790 }
791 #endif /* CONFIG_IEEE80211W */
792 #ifdef CONFIG_WNM
793 if (mgmt->u.action.category == WLAN_ACTION_WNM) {
794 ieee802_11_rx_wnm_action_ap(hapd, mgmt, drv_mgmt->frame_len);
795 }
796 #endif /* CONFIG_WNM */
797 #ifdef CONFIG_FST
798 if (mgmt->u.action.category == WLAN_ACTION_FST && hapd->iface->fst) {
799 fst_rx_action(hapd->iface->fst, mgmt, drv_mgmt->frame_len);
800 return;
801 }
802 #endif /* CONFIG_FST */
803
804 }
805
806
807 #ifdef NEED_AP_MLME
808
809 #define HAPD_BROADCAST ((struct hostapd_data *) -1)
810
get_hapd_bssid(struct hostapd_iface * iface,const u8 * bssid)811 static struct hostapd_data * get_hapd_bssid(struct hostapd_iface *iface,
812 const u8 *bssid)
813 {
814 size_t i;
815
816 if (bssid == NULL)
817 return NULL;
818 if (bssid[0] == 0xff && bssid[1] == 0xff && bssid[2] == 0xff &&
819 bssid[3] == 0xff && bssid[4] == 0xff && bssid[5] == 0xff)
820 return HAPD_BROADCAST;
821
822 for (i = 0; i < iface->num_bss; i++) {
823 if (os_memcmp(bssid, iface->bss[i]->own_addr, ETH_ALEN) == 0)
824 return iface->bss[i];
825 }
826
827 return NULL;
828 }
829
830
hostapd_rx_from_unknown_sta(struct hostapd_data * hapd,const u8 * bssid,const u8 * addr,int wds)831 static void hostapd_rx_from_unknown_sta(struct hostapd_data *hapd,
832 const u8 *bssid, const u8 *addr,
833 int wds)
834 {
835 hapd = get_hapd_bssid(hapd->iface, bssid);
836 if (hapd == NULL || hapd == HAPD_BROADCAST)
837 return;
838
839 ieee802_11_rx_from_unknown(hapd, addr, wds);
840 }
841
842
hostapd_mgmt_rx(struct hostapd_data * hapd,struct rx_mgmt * rx_mgmt)843 static int hostapd_mgmt_rx(struct hostapd_data *hapd, struct rx_mgmt *rx_mgmt)
844 {
845 struct hostapd_iface *iface = hapd->iface;
846 const struct ieee80211_hdr *hdr;
847 const u8 *bssid;
848 struct hostapd_frame_info fi;
849 int ret;
850
851 #ifdef CONFIG_TESTING_OPTIONS
852 if (hapd->ext_mgmt_frame_handling) {
853 size_t hex_len = 2 * rx_mgmt->frame_len + 1;
854 char *hex = os_malloc(hex_len);
855
856 if (hex) {
857 wpa_snprintf_hex(hex, hex_len, rx_mgmt->frame,
858 rx_mgmt->frame_len);
859 wpa_msg(hapd->msg_ctx, MSG_INFO, "MGMT-RX %s", hex);
860 os_free(hex);
861 }
862 return 1;
863 }
864 #endif /* CONFIG_TESTING_OPTIONS */
865
866 hdr = (const struct ieee80211_hdr *) rx_mgmt->frame;
867 bssid = get_hdr_bssid(hdr, rx_mgmt->frame_len);
868 if (bssid == NULL)
869 return 0;
870
871 hapd = get_hapd_bssid(iface, bssid);
872 if (hapd == NULL) {
873 u16 fc = le_to_host16(hdr->frame_control);
874
875 /*
876 * Drop frames to unknown BSSIDs except for Beacon frames which
877 * could be used to update neighbor information.
878 */
879 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
880 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
881 hapd = iface->bss[0];
882 else
883 return 0;
884 }
885
886 os_memset(&fi, 0, sizeof(fi));
887 fi.datarate = rx_mgmt->datarate;
888 fi.ssi_signal = rx_mgmt->ssi_signal;
889
890 if (hapd == HAPD_BROADCAST) {
891 size_t i;
892
893 ret = 0;
894 for (i = 0; i < iface->num_bss; i++) {
895 /* if bss is set, driver will call this function for
896 * each bss individually. */
897 if (rx_mgmt->drv_priv &&
898 (iface->bss[i]->drv_priv != rx_mgmt->drv_priv))
899 continue;
900
901 if (ieee802_11_mgmt(iface->bss[i], rx_mgmt->frame,
902 rx_mgmt->frame_len, &fi) > 0)
903 ret = 1;
904 }
905 } else
906 ret = ieee802_11_mgmt(hapd, rx_mgmt->frame, rx_mgmt->frame_len,
907 &fi);
908
909 random_add_randomness(&fi, sizeof(fi));
910
911 return ret;
912 }
913
914
hostapd_mgmt_tx_cb(struct hostapd_data * hapd,const u8 * buf,size_t len,u16 stype,int ok)915 static void hostapd_mgmt_tx_cb(struct hostapd_data *hapd, const u8 *buf,
916 size_t len, u16 stype, int ok)
917 {
918 struct ieee80211_hdr *hdr;
919
920 hdr = (struct ieee80211_hdr *) buf;
921 hapd = get_hapd_bssid(hapd->iface, get_hdr_bssid(hdr, len));
922 if (hapd == NULL || hapd == HAPD_BROADCAST)
923 return;
924 ieee802_11_mgmt_cb(hapd, buf, len, stype, ok);
925 }
926
927 #endif /* NEED_AP_MLME */
928
929
hostapd_event_new_sta(struct hostapd_data * hapd,const u8 * addr)930 static int hostapd_event_new_sta(struct hostapd_data *hapd, const u8 *addr)
931 {
932 struct sta_info *sta = ap_get_sta(hapd, addr);
933
934 if (sta)
935 return 0;
936
937 wpa_printf(MSG_DEBUG, "Data frame from unknown STA " MACSTR
938 " - adding a new STA", MAC2STR(addr));
939 sta = ap_sta_add(hapd, addr);
940 if (sta) {
941 hostapd_new_assoc_sta(hapd, sta, 0);
942 } else {
943 wpa_printf(MSG_DEBUG, "Failed to add STA entry for " MACSTR,
944 MAC2STR(addr));
945 return -1;
946 }
947
948 return 0;
949 }
950
951
hostapd_event_eapol_rx(struct hostapd_data * hapd,const u8 * src,const u8 * data,size_t data_len)952 static void hostapd_event_eapol_rx(struct hostapd_data *hapd, const u8 *src,
953 const u8 *data, size_t data_len)
954 {
955 struct hostapd_iface *iface = hapd->iface;
956 struct sta_info *sta;
957 size_t j;
958
959 for (j = 0; j < iface->num_bss; j++) {
960 sta = ap_get_sta(iface->bss[j], src);
961 if (sta && sta->flags & WLAN_STA_ASSOC) {
962 hapd = iface->bss[j];
963 break;
964 }
965 }
966
967 ieee802_1x_receive(hapd, src, data, data_len);
968 }
969
970 #endif /* HOSTAPD */
971
972
hostapd_get_mode_channel(struct hostapd_iface * iface,unsigned int freq)973 static struct hostapd_channel_data * hostapd_get_mode_channel(
974 struct hostapd_iface *iface, unsigned int freq)
975 {
976 int i;
977 struct hostapd_channel_data *chan;
978
979 for (i = 0; i < iface->current_mode->num_channels; i++) {
980 chan = &iface->current_mode->channels[i];
981 if ((unsigned int) chan->freq == freq)
982 return chan;
983 }
984
985 return NULL;
986 }
987
988
hostapd_update_nf(struct hostapd_iface * iface,struct hostapd_channel_data * chan,struct freq_survey * survey)989 static void hostapd_update_nf(struct hostapd_iface *iface,
990 struct hostapd_channel_data *chan,
991 struct freq_survey *survey)
992 {
993 if (!iface->chans_surveyed) {
994 chan->min_nf = survey->nf;
995 iface->lowest_nf = survey->nf;
996 } else {
997 if (dl_list_empty(&chan->survey_list))
998 chan->min_nf = survey->nf;
999 else if (survey->nf < chan->min_nf)
1000 chan->min_nf = survey->nf;
1001 if (survey->nf < iface->lowest_nf)
1002 iface->lowest_nf = survey->nf;
1003 }
1004 }
1005
1006
hostapd_single_channel_get_survey(struct hostapd_iface * iface,struct survey_results * survey_res)1007 static void hostapd_single_channel_get_survey(struct hostapd_iface *iface,
1008 struct survey_results *survey_res)
1009 {
1010 struct hostapd_channel_data *chan;
1011 struct freq_survey *survey;
1012 u64 divisor, dividend;
1013
1014 survey = dl_list_first(&survey_res->survey_list, struct freq_survey,
1015 list);
1016 if (!survey || !survey->freq)
1017 return;
1018
1019 chan = hostapd_get_mode_channel(iface, survey->freq);
1020 if (!chan || chan->flag & HOSTAPD_CHAN_DISABLED)
1021 return;
1022
1023 wpa_printf(MSG_DEBUG,
1024 "Single Channel Survey: (freq=%d channel_time=%ld channel_time_busy=%ld)",
1025 survey->freq,
1026 (unsigned long int) survey->channel_time,
1027 (unsigned long int) survey->channel_time_busy);
1028
1029 if (survey->channel_time > iface->last_channel_time &&
1030 survey->channel_time > survey->channel_time_busy) {
1031 dividend = survey->channel_time_busy -
1032 iface->last_channel_time_busy;
1033 divisor = survey->channel_time - iface->last_channel_time;
1034
1035 iface->channel_utilization = dividend * 255 / divisor;
1036 wpa_printf(MSG_DEBUG, "Channel Utilization: %d",
1037 iface->channel_utilization);
1038 }
1039 iface->last_channel_time = survey->channel_time;
1040 iface->last_channel_time_busy = survey->channel_time_busy;
1041 }
1042
1043
hostapd_event_get_survey(struct hostapd_iface * iface,struct survey_results * survey_results)1044 void hostapd_event_get_survey(struct hostapd_iface *iface,
1045 struct survey_results *survey_results)
1046 {
1047 struct freq_survey *survey, *tmp;
1048 struct hostapd_channel_data *chan;
1049
1050 if (dl_list_empty(&survey_results->survey_list)) {
1051 wpa_printf(MSG_DEBUG, "No survey data received");
1052 return;
1053 }
1054
1055 if (survey_results->freq_filter) {
1056 hostapd_single_channel_get_survey(iface, survey_results);
1057 return;
1058 }
1059
1060 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list,
1061 struct freq_survey, list) {
1062 chan = hostapd_get_mode_channel(iface, survey->freq);
1063 if (!chan)
1064 continue;
1065 if (chan->flag & HOSTAPD_CHAN_DISABLED)
1066 continue;
1067
1068 dl_list_del(&survey->list);
1069 dl_list_add_tail(&chan->survey_list, &survey->list);
1070
1071 hostapd_update_nf(iface, chan, survey);
1072
1073 iface->chans_surveyed++;
1074 }
1075 }
1076
1077
1078 #ifdef HOSTAPD
1079 #ifdef NEED_AP_MLME
1080
hostapd_event_iface_unavailable(struct hostapd_data * hapd)1081 static void hostapd_event_iface_unavailable(struct hostapd_data *hapd)
1082 {
1083 wpa_printf(MSG_DEBUG, "Interface %s is unavailable -- stopped",
1084 hapd->conf->iface);
1085
1086 if (hapd->csa_in_progress) {
1087 wpa_printf(MSG_INFO, "CSA failed (%s was stopped)",
1088 hapd->conf->iface);
1089 hostapd_switch_channel_fallback(hapd->iface,
1090 &hapd->cs_freq_params);
1091 }
1092 }
1093
1094
hostapd_event_dfs_radar_detected(struct hostapd_data * hapd,struct dfs_event * radar)1095 static void hostapd_event_dfs_radar_detected(struct hostapd_data *hapd,
1096 struct dfs_event *radar)
1097 {
1098 wpa_printf(MSG_DEBUG, "DFS radar detected on %d MHz", radar->freq);
1099 hostapd_dfs_radar_detected(hapd->iface, radar->freq, radar->ht_enabled,
1100 radar->chan_offset, radar->chan_width,
1101 radar->cf1, radar->cf2);
1102 }
1103
1104
hostapd_event_dfs_cac_finished(struct hostapd_data * hapd,struct dfs_event * radar)1105 static void hostapd_event_dfs_cac_finished(struct hostapd_data *hapd,
1106 struct dfs_event *radar)
1107 {
1108 wpa_printf(MSG_DEBUG, "DFS CAC finished on %d MHz", radar->freq);
1109 hostapd_dfs_complete_cac(hapd->iface, 1, radar->freq, radar->ht_enabled,
1110 radar->chan_offset, radar->chan_width,
1111 radar->cf1, radar->cf2);
1112 }
1113
1114
hostapd_event_dfs_cac_aborted(struct hostapd_data * hapd,struct dfs_event * radar)1115 static void hostapd_event_dfs_cac_aborted(struct hostapd_data *hapd,
1116 struct dfs_event *radar)
1117 {
1118 wpa_printf(MSG_DEBUG, "DFS CAC aborted on %d MHz", radar->freq);
1119 hostapd_dfs_complete_cac(hapd->iface, 0, radar->freq, radar->ht_enabled,
1120 radar->chan_offset, radar->chan_width,
1121 radar->cf1, radar->cf2);
1122 }
1123
1124
hostapd_event_dfs_nop_finished(struct hostapd_data * hapd,struct dfs_event * radar)1125 static void hostapd_event_dfs_nop_finished(struct hostapd_data *hapd,
1126 struct dfs_event *radar)
1127 {
1128 wpa_printf(MSG_DEBUG, "DFS NOP finished on %d MHz", radar->freq);
1129 hostapd_dfs_nop_finished(hapd->iface, radar->freq, radar->ht_enabled,
1130 radar->chan_offset, radar->chan_width,
1131 radar->cf1, radar->cf2);
1132 }
1133
1134
hostapd_event_dfs_cac_started(struct hostapd_data * hapd,struct dfs_event * radar)1135 static void hostapd_event_dfs_cac_started(struct hostapd_data *hapd,
1136 struct dfs_event *radar)
1137 {
1138 wpa_printf(MSG_DEBUG, "DFS offload CAC started on %d MHz", radar->freq);
1139 hostapd_dfs_start_cac(hapd->iface, radar->freq, radar->ht_enabled,
1140 radar->chan_offset, radar->chan_width,
1141 radar->cf1, radar->cf2);
1142 }
1143
1144 #endif /* NEED_AP_MLME */
1145
1146
wpa_supplicant_event(void * ctx,enum wpa_event_type event,union wpa_event_data * data)1147 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
1148 union wpa_event_data *data)
1149 {
1150 struct hostapd_data *hapd = ctx;
1151 #ifndef CONFIG_NO_STDOUT_DEBUG
1152 int level = MSG_DEBUG;
1153
1154 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame &&
1155 data->rx_mgmt.frame_len >= 24) {
1156 const struct ieee80211_hdr *hdr;
1157 u16 fc;
1158
1159 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
1160 fc = le_to_host16(hdr->frame_control);
1161 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
1162 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
1163 level = MSG_EXCESSIVE;
1164 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
1165 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_REQ)
1166 level = MSG_EXCESSIVE;
1167 }
1168
1169 wpa_dbg(hapd->msg_ctx, level, "Event %s (%d) received",
1170 event_to_string(event), event);
1171 #endif /* CONFIG_NO_STDOUT_DEBUG */
1172
1173 switch (event) {
1174 case EVENT_MICHAEL_MIC_FAILURE:
1175 michael_mic_failure(hapd, data->michael_mic_failure.src, 1);
1176 break;
1177 case EVENT_SCAN_RESULTS:
1178 if (hapd->iface->scan_cb)
1179 hapd->iface->scan_cb(hapd->iface);
1180 break;
1181 case EVENT_WPS_BUTTON_PUSHED:
1182 hostapd_wps_button_pushed(hapd, NULL);
1183 break;
1184 #ifdef NEED_AP_MLME
1185 case EVENT_TX_STATUS:
1186 switch (data->tx_status.type) {
1187 case WLAN_FC_TYPE_MGMT:
1188 hostapd_mgmt_tx_cb(hapd, data->tx_status.data,
1189 data->tx_status.data_len,
1190 data->tx_status.stype,
1191 data->tx_status.ack);
1192 break;
1193 case WLAN_FC_TYPE_DATA:
1194 hostapd_tx_status(hapd, data->tx_status.dst,
1195 data->tx_status.data,
1196 data->tx_status.data_len,
1197 data->tx_status.ack);
1198 break;
1199 }
1200 break;
1201 case EVENT_EAPOL_TX_STATUS:
1202 hostapd_eapol_tx_status(hapd, data->eapol_tx_status.dst,
1203 data->eapol_tx_status.data,
1204 data->eapol_tx_status.data_len,
1205 data->eapol_tx_status.ack);
1206 break;
1207 case EVENT_DRIVER_CLIENT_POLL_OK:
1208 hostapd_client_poll_ok(hapd, data->client_poll.addr);
1209 break;
1210 case EVENT_RX_FROM_UNKNOWN:
1211 hostapd_rx_from_unknown_sta(hapd, data->rx_from_unknown.bssid,
1212 data->rx_from_unknown.addr,
1213 data->rx_from_unknown.wds);
1214 break;
1215 #endif /* NEED_AP_MLME */
1216 case EVENT_RX_MGMT:
1217 if (!data->rx_mgmt.frame)
1218 break;
1219 #ifdef NEED_AP_MLME
1220 if (hostapd_mgmt_rx(hapd, &data->rx_mgmt) > 0)
1221 break;
1222 #endif /* NEED_AP_MLME */
1223 hostapd_action_rx(hapd, &data->rx_mgmt);
1224 break;
1225 case EVENT_RX_PROBE_REQ:
1226 if (data->rx_probe_req.sa == NULL ||
1227 data->rx_probe_req.ie == NULL)
1228 break;
1229 hostapd_probe_req_rx(hapd, data->rx_probe_req.sa,
1230 data->rx_probe_req.da,
1231 data->rx_probe_req.bssid,
1232 data->rx_probe_req.ie,
1233 data->rx_probe_req.ie_len,
1234 data->rx_probe_req.ssi_signal);
1235 break;
1236 case EVENT_NEW_STA:
1237 hostapd_event_new_sta(hapd, data->new_sta.addr);
1238 break;
1239 case EVENT_EAPOL_RX:
1240 hostapd_event_eapol_rx(hapd, data->eapol_rx.src,
1241 data->eapol_rx.data,
1242 data->eapol_rx.data_len);
1243 break;
1244 case EVENT_ASSOC:
1245 if (!data)
1246 return;
1247 hostapd_notif_assoc(hapd, data->assoc_info.addr,
1248 data->assoc_info.req_ies,
1249 data->assoc_info.req_ies_len,
1250 data->assoc_info.reassoc);
1251 break;
1252 case EVENT_DISASSOC:
1253 if (data)
1254 hostapd_notif_disassoc(hapd, data->disassoc_info.addr);
1255 break;
1256 case EVENT_DEAUTH:
1257 if (data)
1258 hostapd_notif_disassoc(hapd, data->deauth_info.addr);
1259 break;
1260 case EVENT_STATION_LOW_ACK:
1261 if (!data)
1262 break;
1263 hostapd_event_sta_low_ack(hapd, data->low_ack.addr);
1264 break;
1265 case EVENT_AUTH:
1266 hostapd_notif_auth(hapd, &data->auth);
1267 break;
1268 case EVENT_CH_SWITCH:
1269 if (!data)
1270 break;
1271 hostapd_event_ch_switch(hapd, data->ch_switch.freq,
1272 data->ch_switch.ht_enabled,
1273 data->ch_switch.ch_offset,
1274 data->ch_switch.ch_width,
1275 data->ch_switch.cf1,
1276 data->ch_switch.cf2);
1277 break;
1278 case EVENT_CONNECT_FAILED_REASON:
1279 if (!data)
1280 break;
1281 hostapd_event_connect_failed_reason(
1282 hapd, data->connect_failed_reason.addr,
1283 data->connect_failed_reason.code);
1284 break;
1285 case EVENT_SURVEY:
1286 hostapd_event_get_survey(hapd->iface, &data->survey_results);
1287 break;
1288 #ifdef NEED_AP_MLME
1289 case EVENT_INTERFACE_UNAVAILABLE:
1290 hostapd_event_iface_unavailable(hapd);
1291 break;
1292 case EVENT_DFS_RADAR_DETECTED:
1293 if (!data)
1294 break;
1295 hostapd_event_dfs_radar_detected(hapd, &data->dfs_event);
1296 break;
1297 case EVENT_DFS_CAC_FINISHED:
1298 if (!data)
1299 break;
1300 hostapd_event_dfs_cac_finished(hapd, &data->dfs_event);
1301 break;
1302 case EVENT_DFS_CAC_ABORTED:
1303 if (!data)
1304 break;
1305 hostapd_event_dfs_cac_aborted(hapd, &data->dfs_event);
1306 break;
1307 case EVENT_DFS_NOP_FINISHED:
1308 if (!data)
1309 break;
1310 hostapd_event_dfs_nop_finished(hapd, &data->dfs_event);
1311 break;
1312 case EVENT_CHANNEL_LIST_CHANGED:
1313 /* channel list changed (regulatory?), update channel list */
1314 /* TODO: check this. hostapd_get_hw_features() initializes
1315 * too much stuff. */
1316 /* hostapd_get_hw_features(hapd->iface); */
1317 hostapd_channel_list_updated(
1318 hapd->iface, data->channel_list_changed.initiator);
1319 break;
1320 case EVENT_DFS_CAC_STARTED:
1321 if (!data)
1322 break;
1323 hostapd_event_dfs_cac_started(hapd, &data->dfs_event);
1324 break;
1325 #endif /* NEED_AP_MLME */
1326 case EVENT_INTERFACE_ENABLED:
1327 wpa_msg(hapd->msg_ctx, MSG_INFO, INTERFACE_ENABLED);
1328 if (hapd->disabled && hapd->started) {
1329 hapd->disabled = 0;
1330 /*
1331 * Try to re-enable interface if the driver stopped it
1332 * when the interface got disabled.
1333 */
1334 wpa_auth_reconfig_group_keys(hapd->wpa_auth);
1335 hapd->reenable_beacon = 1;
1336 ieee802_11_set_beacon(hapd);
1337 }
1338 break;
1339 case EVENT_INTERFACE_DISABLED:
1340 hostapd_free_stas(hapd);
1341 wpa_msg(hapd->msg_ctx, MSG_INFO, INTERFACE_DISABLED);
1342 hapd->disabled = 1;
1343 break;
1344 #ifdef CONFIG_ACS
1345 case EVENT_ACS_CHANNEL_SELECTED:
1346 hostapd_acs_channel_selected(hapd,
1347 &data->acs_selected_channels);
1348 break;
1349 #endif /* CONFIG_ACS */
1350 default:
1351 wpa_printf(MSG_DEBUG, "Unknown event %d", event);
1352 break;
1353 }
1354 }
1355
1356
wpa_supplicant_event_global(void * ctx,enum wpa_event_type event,union wpa_event_data * data)1357 void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event,
1358 union wpa_event_data *data)
1359 {
1360 struct hapd_interfaces *interfaces = ctx;
1361 struct hostapd_data *hapd;
1362
1363 if (event != EVENT_INTERFACE_STATUS)
1364 return;
1365
1366 hapd = hostapd_get_iface(interfaces, data->interface_status.ifname);
1367 if (hapd && hapd->driver && hapd->driver->get_ifindex &&
1368 hapd->drv_priv) {
1369 unsigned int ifindex;
1370
1371 ifindex = hapd->driver->get_ifindex(hapd->drv_priv);
1372 if (ifindex != data->interface_status.ifindex) {
1373 wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
1374 "interface status ifindex %d mismatch (%d)",
1375 ifindex, data->interface_status.ifindex);
1376 return;
1377 }
1378 }
1379 if (hapd)
1380 wpa_supplicant_event(hapd, event, data);
1381 }
1382
1383 #endif /* HOSTAPD */
1384