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Move generic AP functionality implementation into src/ap
[thirdparty/hostap.git] / src / ap / ieee802_11.c
1 /*
2 * hostapd / IEEE 802.11 Management
3 * Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 *
9 * Alternatively, this software may be distributed under the terms of BSD
10 * license.
11 *
12 * See README and COPYING for more details.
13 */
14
15 #include "utils/includes.h"
16
17 #ifndef CONFIG_NATIVE_WINDOWS
18
19 #include "utils/common.h"
20 #include "utils/eloop.h"
21 #include "crypto/crypto.h"
22 #include "drivers/driver.h"
23 #include "common/wpa_ctrl.h"
24 #include "radius/radius.h"
25 #include "radius/radius_client.h"
26 #include "hostapd.h"
27 #include "ieee802_11.h"
28 #include "beacon.h"
29 #include "ieee802_11_auth.h"
30 #include "sta_info.h"
31 #include "ieee802_1x.h"
32 #include "wpa.h"
33 #include "wmm.h"
34 #include "ap_list.h"
35 #include "accounting.h"
36 #include "config.h"
37 #include "mlme.h"
38
39
40 u8 * hostapd_eid_supp_rates(struct hostapd_data *hapd, u8 *eid)
41 {
42 u8 *pos = eid;
43 int i, num, count;
44
45 if (hapd->iface->current_rates == NULL)
46 return eid;
47
48 *pos++ = WLAN_EID_SUPP_RATES;
49 num = hapd->iface->num_rates;
50 if (num > 8) {
51 /* rest of the rates are encoded in Extended supported
52 * rates element */
53 num = 8;
54 }
55
56 *pos++ = num;
57 count = 0;
58 for (i = 0, count = 0; i < hapd->iface->num_rates && count < num;
59 i++) {
60 count++;
61 *pos = hapd->iface->current_rates[i].rate / 5;
62 if (hapd->iface->current_rates[i].flags & HOSTAPD_RATE_BASIC)
63 *pos |= 0x80;
64 pos++;
65 }
66
67 return pos;
68 }
69
70
71 u8 * hostapd_eid_ext_supp_rates(struct hostapd_data *hapd, u8 *eid)
72 {
73 u8 *pos = eid;
74 int i, num, count;
75
76 if (hapd->iface->current_rates == NULL)
77 return eid;
78
79 num = hapd->iface->num_rates;
80 if (num <= 8)
81 return eid;
82 num -= 8;
83
84 *pos++ = WLAN_EID_EXT_SUPP_RATES;
85 *pos++ = num;
86 count = 0;
87 for (i = 0, count = 0; i < hapd->iface->num_rates && count < num + 8;
88 i++) {
89 count++;
90 if (count <= 8)
91 continue; /* already in SuppRates IE */
92 *pos = hapd->iface->current_rates[i].rate / 5;
93 if (hapd->iface->current_rates[i].flags & HOSTAPD_RATE_BASIC)
94 *pos |= 0x80;
95 pos++;
96 }
97
98 return pos;
99 }
100
101
102 u16 hostapd_own_capab_info(struct hostapd_data *hapd, struct sta_info *sta,
103 int probe)
104 {
105 int capab = WLAN_CAPABILITY_ESS;
106 int privacy;
107
108 if (hapd->iface->num_sta_no_short_preamble == 0 &&
109 hapd->iconf->preamble == SHORT_PREAMBLE)
110 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
111
112 privacy = hapd->conf->ssid.wep.keys_set;
113
114 if (hapd->conf->ieee802_1x &&
115 (hapd->conf->default_wep_key_len ||
116 hapd->conf->individual_wep_key_len))
117 privacy = 1;
118
119 if (hapd->conf->wpa)
120 privacy = 1;
121
122 if (sta) {
123 int policy, def_klen;
124 if (probe && sta->ssid_probe) {
125 policy = sta->ssid_probe->security_policy;
126 def_klen = sta->ssid_probe->wep.default_len;
127 } else {
128 policy = sta->ssid->security_policy;
129 def_klen = sta->ssid->wep.default_len;
130 }
131 privacy = policy != SECURITY_PLAINTEXT;
132 if (policy == SECURITY_IEEE_802_1X && def_klen == 0)
133 privacy = 0;
134 }
135
136 if (privacy)
137 capab |= WLAN_CAPABILITY_PRIVACY;
138
139 if (hapd->iface->current_mode &&
140 hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G &&
141 hapd->iface->num_sta_no_short_slot_time == 0)
142 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
143
144 return capab;
145 }
146
147
148 #ifdef CONFIG_IEEE80211W
149 static u8 * hostapd_eid_assoc_comeback_time(struct hostapd_data *hapd,
150 struct sta_info *sta, u8 *eid)
151 {
152 u8 *pos = eid;
153 u32 timeout, tu;
154 struct os_time now, passed;
155
156 *pos++ = WLAN_EID_TIMEOUT_INTERVAL;
157 *pos++ = 5;
158 *pos++ = WLAN_TIMEOUT_ASSOC_COMEBACK;
159 os_get_time(&now);
160 os_time_sub(&now, &sta->sa_query_start, &passed);
161 tu = (passed.sec * 1000000 + passed.usec) / 1024;
162 if (hapd->conf->assoc_sa_query_max_timeout > tu)
163 timeout = hapd->conf->assoc_sa_query_max_timeout - tu;
164 else
165 timeout = 0;
166 if (timeout < hapd->conf->assoc_sa_query_max_timeout)
167 timeout++; /* add some extra time for local timers */
168 WPA_PUT_LE32(pos, timeout);
169 pos += 4;
170
171 return pos;
172 }
173 #endif /* CONFIG_IEEE80211W */
174
175
176 void ieee802_11_print_ssid(char *buf, const u8 *ssid, u8 len)
177 {
178 int i;
179 if (len > HOSTAPD_MAX_SSID_LEN)
180 len = HOSTAPD_MAX_SSID_LEN;
181 for (i = 0; i < len; i++) {
182 if (ssid[i] >= 32 && ssid[i] < 127)
183 buf[i] = ssid[i];
184 else
185 buf[i] = '.';
186 }
187 buf[len] = '\0';
188 }
189
190
191 /**
192 * ieee802_11_send_deauth - Send Deauthentication frame
193 * @hapd: hostapd BSS data
194 * @addr: Address of the destination STA
195 * @reason: Reason code for Deauthentication
196 */
197 void ieee802_11_send_deauth(struct hostapd_data *hapd, const u8 *addr,
198 u16 reason)
199 {
200 struct ieee80211_mgmt mgmt;
201
202 hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
203 HOSTAPD_LEVEL_DEBUG,
204 "deauthenticate - reason %d", reason);
205 os_memset(&mgmt, 0, sizeof(mgmt));
206 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
207 WLAN_FC_STYPE_DEAUTH);
208 os_memcpy(mgmt.da, addr, ETH_ALEN);
209 os_memcpy(mgmt.sa, hapd->own_addr, ETH_ALEN);
210 os_memcpy(mgmt.bssid, hapd->own_addr, ETH_ALEN);
211 mgmt.u.deauth.reason_code = host_to_le16(reason);
212 if (hapd->drv.send_mgmt_frame(hapd, &mgmt, IEEE80211_HDRLEN +
213 sizeof(mgmt.u.deauth)) < 0)
214 perror("ieee802_11_send_deauth: send");
215 }
216
217
218 static u16 auth_shared_key(struct hostapd_data *hapd, struct sta_info *sta,
219 u16 auth_transaction, const u8 *challenge,
220 int iswep)
221 {
222 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
223 HOSTAPD_LEVEL_DEBUG,
224 "authentication (shared key, transaction %d)",
225 auth_transaction);
226
227 if (auth_transaction == 1) {
228 if (!sta->challenge) {
229 /* Generate a pseudo-random challenge */
230 u8 key[8];
231 time_t now;
232 int r;
233 sta->challenge = os_zalloc(WLAN_AUTH_CHALLENGE_LEN);
234 if (sta->challenge == NULL)
235 return WLAN_STATUS_UNSPECIFIED_FAILURE;
236
237 now = time(NULL);
238 r = random();
239 os_memcpy(key, &now, 4);
240 os_memcpy(key + 4, &r, 4);
241 rc4_skip(key, sizeof(key), 0,
242 sta->challenge, WLAN_AUTH_CHALLENGE_LEN);
243 }
244 return 0;
245 }
246
247 if (auth_transaction != 3)
248 return WLAN_STATUS_UNSPECIFIED_FAILURE;
249
250 /* Transaction 3 */
251 if (!iswep || !sta->challenge || !challenge ||
252 os_memcmp(sta->challenge, challenge, WLAN_AUTH_CHALLENGE_LEN)) {
253 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
254 HOSTAPD_LEVEL_INFO,
255 "shared key authentication - invalid "
256 "challenge-response");
257 return WLAN_STATUS_CHALLENGE_FAIL;
258 }
259
260 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
261 HOSTAPD_LEVEL_DEBUG,
262 "authentication OK (shared key)");
263 #ifdef IEEE80211_REQUIRE_AUTH_ACK
264 /* Station will be marked authenticated if it ACKs the
265 * authentication reply. */
266 #else
267 sta->flags |= WLAN_STA_AUTH;
268 wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH);
269 #endif
270 os_free(sta->challenge);
271 sta->challenge = NULL;
272
273 return 0;
274 }
275
276
277 static void send_auth_reply(struct hostapd_data *hapd,
278 const u8 *dst, const u8 *bssid,
279 u16 auth_alg, u16 auth_transaction, u16 resp,
280 const u8 *ies, size_t ies_len)
281 {
282 struct ieee80211_mgmt *reply;
283 u8 *buf;
284 size_t rlen;
285
286 rlen = IEEE80211_HDRLEN + sizeof(reply->u.auth) + ies_len;
287 buf = os_zalloc(rlen);
288 if (buf == NULL)
289 return;
290
291 reply = (struct ieee80211_mgmt *) buf;
292 reply->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
293 WLAN_FC_STYPE_AUTH);
294 os_memcpy(reply->da, dst, ETH_ALEN);
295 os_memcpy(reply->sa, hapd->own_addr, ETH_ALEN);
296 os_memcpy(reply->bssid, bssid, ETH_ALEN);
297
298 reply->u.auth.auth_alg = host_to_le16(auth_alg);
299 reply->u.auth.auth_transaction = host_to_le16(auth_transaction);
300 reply->u.auth.status_code = host_to_le16(resp);
301
302 if (ies && ies_len)
303 os_memcpy(reply->u.auth.variable, ies, ies_len);
304
305 wpa_printf(MSG_DEBUG, "authentication reply: STA=" MACSTR
306 " auth_alg=%d auth_transaction=%d resp=%d (IE len=%lu)",
307 MAC2STR(dst), auth_alg, auth_transaction,
308 resp, (unsigned long) ies_len);
309 if (hapd->drv.send_mgmt_frame(hapd, reply, rlen) < 0)
310 perror("send_auth_reply: send");
311
312 os_free(buf);
313 }
314
315
316 #ifdef CONFIG_IEEE80211R
317 static void handle_auth_ft_finish(void *ctx, const u8 *dst, const u8 *bssid,
318 u16 auth_transaction, u16 status,
319 const u8 *ies, size_t ies_len)
320 {
321 struct hostapd_data *hapd = ctx;
322 struct sta_info *sta;
323
324 send_auth_reply(hapd, dst, bssid, WLAN_AUTH_FT, auth_transaction,
325 status, ies, ies_len);
326
327 if (status != WLAN_STATUS_SUCCESS)
328 return;
329
330 sta = ap_get_sta(hapd, dst);
331 if (sta == NULL)
332 return;
333
334 hostapd_logger(hapd, dst, HOSTAPD_MODULE_IEEE80211,
335 HOSTAPD_LEVEL_DEBUG, "authentication OK (FT)");
336 sta->flags |= WLAN_STA_AUTH;
337 mlme_authenticate_indication(hapd, sta);
338 }
339 #endif /* CONFIG_IEEE80211R */
340
341
342 static void handle_auth(struct hostapd_data *hapd,
343 const struct ieee80211_mgmt *mgmt, size_t len)
344 {
345 u16 auth_alg, auth_transaction, status_code;
346 u16 resp = WLAN_STATUS_SUCCESS;
347 struct sta_info *sta = NULL;
348 int res;
349 u16 fc;
350 const u8 *challenge = NULL;
351 u32 session_timeout, acct_interim_interval;
352 int vlan_id = 0;
353 u8 resp_ies[2 + WLAN_AUTH_CHALLENGE_LEN];
354 size_t resp_ies_len = 0;
355
356 if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.auth)) {
357 printf("handle_auth - too short payload (len=%lu)\n",
358 (unsigned long) len);
359 return;
360 }
361
362 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
363 auth_transaction = le_to_host16(mgmt->u.auth.auth_transaction);
364 status_code = le_to_host16(mgmt->u.auth.status_code);
365 fc = le_to_host16(mgmt->frame_control);
366
367 if (len >= IEEE80211_HDRLEN + sizeof(mgmt->u.auth) +
368 2 + WLAN_AUTH_CHALLENGE_LEN &&
369 mgmt->u.auth.variable[0] == WLAN_EID_CHALLENGE &&
370 mgmt->u.auth.variable[1] == WLAN_AUTH_CHALLENGE_LEN)
371 challenge = &mgmt->u.auth.variable[2];
372
373 wpa_printf(MSG_DEBUG, "authentication: STA=" MACSTR " auth_alg=%d "
374 "auth_transaction=%d status_code=%d wep=%d%s",
375 MAC2STR(mgmt->sa), auth_alg, auth_transaction,
376 status_code, !!(fc & WLAN_FC_ISWEP),
377 challenge ? " challenge" : "");
378
379 if (hapd->tkip_countermeasures) {
380 resp = WLAN_REASON_MICHAEL_MIC_FAILURE;
381 goto fail;
382 }
383
384 if (!(((hapd->conf->auth_algs & WPA_AUTH_ALG_OPEN) &&
385 auth_alg == WLAN_AUTH_OPEN) ||
386 #ifdef CONFIG_IEEE80211R
387 (hapd->conf->wpa &&
388 (hapd->conf->wpa_key_mgmt &
389 (WPA_KEY_MGMT_FT_IEEE8021X | WPA_KEY_MGMT_FT_PSK)) &&
390 auth_alg == WLAN_AUTH_FT) ||
391 #endif /* CONFIG_IEEE80211R */
392 ((hapd->conf->auth_algs & WPA_AUTH_ALG_SHARED) &&
393 auth_alg == WLAN_AUTH_SHARED_KEY))) {
394 printf("Unsupported authentication algorithm (%d)\n",
395 auth_alg);
396 resp = WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG;
397 goto fail;
398 }
399
400 if (!(auth_transaction == 1 ||
401 (auth_alg == WLAN_AUTH_SHARED_KEY && auth_transaction == 3))) {
402 printf("Unknown authentication transaction number (%d)\n",
403 auth_transaction);
404 resp = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION;
405 goto fail;
406 }
407
408 if (os_memcmp(mgmt->sa, hapd->own_addr, ETH_ALEN) == 0) {
409 printf("Station " MACSTR " not allowed to authenticate.\n",
410 MAC2STR(mgmt->sa));
411 resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
412 goto fail;
413 }
414
415 res = hostapd_allowed_address(hapd, mgmt->sa, (u8 *) mgmt, len,
416 &session_timeout,
417 &acct_interim_interval, &vlan_id);
418 if (res == HOSTAPD_ACL_REJECT) {
419 printf("Station " MACSTR " not allowed to authenticate.\n",
420 MAC2STR(mgmt->sa));
421 resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
422 goto fail;
423 }
424 if (res == HOSTAPD_ACL_PENDING) {
425 wpa_printf(MSG_DEBUG, "Authentication frame from " MACSTR
426 " waiting for an external authentication",
427 MAC2STR(mgmt->sa));
428 /* Authentication code will re-send the authentication frame
429 * after it has received (and cached) information from the
430 * external source. */
431 return;
432 }
433
434 sta = ap_sta_add(hapd, mgmt->sa);
435 if (!sta) {
436 resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
437 goto fail;
438 }
439
440 if (vlan_id > 0) {
441 if (hostapd_get_vlan_id_ifname(hapd->conf->vlan,
442 vlan_id) == NULL) {
443 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS,
444 HOSTAPD_LEVEL_INFO, "Invalid VLAN ID "
445 "%d received from RADIUS server",
446 vlan_id);
447 resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
448 goto fail;
449 }
450 sta->vlan_id = vlan_id;
451 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS,
452 HOSTAPD_LEVEL_INFO, "VLAN ID %d", sta->vlan_id);
453 }
454
455 sta->flags &= ~WLAN_STA_PREAUTH;
456 ieee802_1x_notify_pre_auth(sta->eapol_sm, 0);
457
458 if (hapd->conf->acct_interim_interval == 0 && acct_interim_interval)
459 sta->acct_interim_interval = acct_interim_interval;
460 if (res == HOSTAPD_ACL_ACCEPT_TIMEOUT)
461 ap_sta_session_timeout(hapd, sta, session_timeout);
462 else
463 ap_sta_no_session_timeout(hapd, sta);
464
465 switch (auth_alg) {
466 case WLAN_AUTH_OPEN:
467 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
468 HOSTAPD_LEVEL_DEBUG,
469 "authentication OK (open system)");
470 #ifdef IEEE80211_REQUIRE_AUTH_ACK
471 /* Station will be marked authenticated if it ACKs the
472 * authentication reply. */
473 #else
474 sta->flags |= WLAN_STA_AUTH;
475 wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH);
476 sta->auth_alg = WLAN_AUTH_OPEN;
477 mlme_authenticate_indication(hapd, sta);
478 #endif
479 break;
480 case WLAN_AUTH_SHARED_KEY:
481 resp = auth_shared_key(hapd, sta, auth_transaction, challenge,
482 fc & WLAN_FC_ISWEP);
483 sta->auth_alg = WLAN_AUTH_SHARED_KEY;
484 mlme_authenticate_indication(hapd, sta);
485 if (sta->challenge && auth_transaction == 1) {
486 resp_ies[0] = WLAN_EID_CHALLENGE;
487 resp_ies[1] = WLAN_AUTH_CHALLENGE_LEN;
488 os_memcpy(resp_ies + 2, sta->challenge,
489 WLAN_AUTH_CHALLENGE_LEN);
490 resp_ies_len = 2 + WLAN_AUTH_CHALLENGE_LEN;
491 }
492 break;
493 #ifdef CONFIG_IEEE80211R
494 case WLAN_AUTH_FT:
495 sta->auth_alg = WLAN_AUTH_FT;
496 if (sta->wpa_sm == NULL)
497 sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
498 sta->addr);
499 if (sta->wpa_sm == NULL) {
500 wpa_printf(MSG_DEBUG, "FT: Failed to initialize WPA "
501 "state machine");
502 resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
503 goto fail;
504 }
505 wpa_ft_process_auth(sta->wpa_sm, mgmt->bssid,
506 auth_transaction, mgmt->u.auth.variable,
507 len - IEEE80211_HDRLEN -
508 sizeof(mgmt->u.auth),
509 handle_auth_ft_finish, hapd);
510 /* handle_auth_ft_finish() callback will complete auth. */
511 return;
512 #endif /* CONFIG_IEEE80211R */
513 }
514
515 fail:
516 send_auth_reply(hapd, mgmt->sa, mgmt->bssid, auth_alg,
517 auth_transaction + 1, resp, resp_ies, resp_ies_len);
518 }
519
520
521 static int hostapd_get_aid(struct hostapd_data *hapd, struct sta_info *sta)
522 {
523 int i, j = 32, aid;
524
525 /* get a unique AID */
526 if (sta->aid > 0) {
527 wpa_printf(MSG_DEBUG, " old AID %d", sta->aid);
528 return 0;
529 }
530
531 for (i = 0; i < AID_WORDS; i++) {
532 if (hapd->sta_aid[i] == (u32) -1)
533 continue;
534 for (j = 0; j < 32; j++) {
535 if (!(hapd->sta_aid[i] & BIT(j)))
536 break;
537 }
538 if (j < 32)
539 break;
540 }
541 if (j == 32)
542 return -1;
543 aid = i * 32 + j + 1;
544 if (aid > 2007)
545 return -1;
546
547 sta->aid = aid;
548 hapd->sta_aid[i] |= BIT(j);
549 wpa_printf(MSG_DEBUG, " new AID %d", sta->aid);
550 return 0;
551 }
552
553
554 static u16 check_ssid(struct hostapd_data *hapd, struct sta_info *sta,
555 const u8 *ssid_ie, size_t ssid_ie_len)
556 {
557 if (ssid_ie == NULL)
558 return WLAN_STATUS_UNSPECIFIED_FAILURE;
559
560 if (ssid_ie_len != hapd->conf->ssid.ssid_len ||
561 os_memcmp(ssid_ie, hapd->conf->ssid.ssid, ssid_ie_len) != 0) {
562 char ssid_txt[33];
563 ieee802_11_print_ssid(ssid_txt, ssid_ie, ssid_ie_len);
564 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
565 HOSTAPD_LEVEL_INFO,
566 "Station tried to associate with unknown SSID "
567 "'%s'", ssid_txt);
568 return WLAN_STATUS_UNSPECIFIED_FAILURE;
569 }
570
571 return WLAN_STATUS_SUCCESS;
572 }
573
574
575 static u16 check_wmm(struct hostapd_data *hapd, struct sta_info *sta,
576 const u8 *wmm_ie, size_t wmm_ie_len)
577 {
578 sta->flags &= ~WLAN_STA_WMM;
579 if (wmm_ie && hapd->conf->wmm_enabled) {
580 if (hostapd_eid_wmm_valid(hapd, wmm_ie, wmm_ie_len))
581 hostapd_logger(hapd, sta->addr,
582 HOSTAPD_MODULE_WPA,
583 HOSTAPD_LEVEL_DEBUG,
584 "invalid WMM element in association "
585 "request");
586 else
587 sta->flags |= WLAN_STA_WMM;
588 }
589 return WLAN_STATUS_SUCCESS;
590 }
591
592
593 static u16 copy_supp_rates(struct hostapd_data *hapd, struct sta_info *sta,
594 struct ieee802_11_elems *elems)
595 {
596 if (!elems->supp_rates) {
597 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
598 HOSTAPD_LEVEL_DEBUG,
599 "No supported rates element in AssocReq");
600 return WLAN_STATUS_UNSPECIFIED_FAILURE;
601 }
602
603 if (elems->supp_rates_len > sizeof(sta->supported_rates)) {
604 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
605 HOSTAPD_LEVEL_DEBUG,
606 "Invalid supported rates element length %d",
607 elems->supp_rates_len);
608 return WLAN_STATUS_UNSPECIFIED_FAILURE;
609 }
610
611 os_memset(sta->supported_rates, 0, sizeof(sta->supported_rates));
612 os_memcpy(sta->supported_rates, elems->supp_rates,
613 elems->supp_rates_len);
614 sta->supported_rates_len = elems->supp_rates_len;
615
616 if (elems->ext_supp_rates) {
617 if (elems->supp_rates_len + elems->ext_supp_rates_len >
618 sizeof(sta->supported_rates)) {
619 hostapd_logger(hapd, sta->addr,
620 HOSTAPD_MODULE_IEEE80211,
621 HOSTAPD_LEVEL_DEBUG,
622 "Invalid supported rates element length"
623 " %d+%d", elems->supp_rates_len,
624 elems->ext_supp_rates_len);
625 return WLAN_STATUS_UNSPECIFIED_FAILURE;
626 }
627
628 os_memcpy(sta->supported_rates + elems->supp_rates_len,
629 elems->ext_supp_rates, elems->ext_supp_rates_len);
630 sta->supported_rates_len += elems->ext_supp_rates_len;
631 }
632
633 return WLAN_STATUS_SUCCESS;
634 }
635
636
637 static u16 check_assoc_ies(struct hostapd_data *hapd, struct sta_info *sta,
638 const u8 *ies, size_t ies_len, int reassoc)
639 {
640 struct ieee802_11_elems elems;
641 u16 resp;
642 const u8 *wpa_ie;
643 size_t wpa_ie_len;
644
645 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) {
646 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
647 HOSTAPD_LEVEL_INFO, "Station sent an invalid "
648 "association request");
649 return WLAN_STATUS_UNSPECIFIED_FAILURE;
650 }
651
652 resp = check_ssid(hapd, sta, elems.ssid, elems.ssid_len);
653 if (resp != WLAN_STATUS_SUCCESS)
654 return resp;
655 resp = check_wmm(hapd, sta, elems.wmm, elems.wmm_len);
656 if (resp != WLAN_STATUS_SUCCESS)
657 return resp;
658 resp = copy_supp_rates(hapd, sta, &elems);
659 if (resp != WLAN_STATUS_SUCCESS)
660 return resp;
661 #ifdef CONFIG_IEEE80211N
662 resp = copy_sta_ht_capab(sta, elems.ht_capabilities,
663 elems.ht_capabilities_len);
664 if (resp != WLAN_STATUS_SUCCESS)
665 return resp;
666 #endif /* CONFIG_IEEE80211N */
667
668 if ((hapd->conf->wpa & WPA_PROTO_RSN) && elems.rsn_ie) {
669 wpa_ie = elems.rsn_ie;
670 wpa_ie_len = elems.rsn_ie_len;
671 } else if ((hapd->conf->wpa & WPA_PROTO_WPA) &&
672 elems.wpa_ie) {
673 wpa_ie = elems.wpa_ie;
674 wpa_ie_len = elems.wpa_ie_len;
675 } else {
676 wpa_ie = NULL;
677 wpa_ie_len = 0;
678 }
679
680 #ifdef CONFIG_WPS
681 sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS);
682 if (hapd->conf->wps_state && wpa_ie == NULL) {
683 if (elems.wps_ie) {
684 wpa_printf(MSG_DEBUG, "STA included WPS IE in "
685 "(Re)Association Request - assume WPS is "
686 "used");
687 sta->flags |= WLAN_STA_WPS;
688 wpabuf_free(sta->wps_ie);
689 sta->wps_ie = wpabuf_alloc_copy(elems.wps_ie + 4,
690 elems.wps_ie_len - 4);
691 } else {
692 wpa_printf(MSG_DEBUG, "STA did not include WPA/RSN IE "
693 "in (Re)Association Request - possible WPS "
694 "use");
695 sta->flags |= WLAN_STA_MAYBE_WPS;
696 }
697 } else
698 #endif /* CONFIG_WPS */
699 if (hapd->conf->wpa && wpa_ie == NULL) {
700 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
701 HOSTAPD_LEVEL_INFO,
702 "No WPA/RSN IE in association request");
703 return WLAN_STATUS_INVALID_IE;
704 }
705
706 if (hapd->conf->wpa && wpa_ie) {
707 int res;
708 wpa_ie -= 2;
709 wpa_ie_len += 2;
710 if (sta->wpa_sm == NULL)
711 sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
712 sta->addr);
713 if (sta->wpa_sm == NULL) {
714 wpa_printf(MSG_WARNING, "Failed to initialize WPA "
715 "state machine");
716 return WLAN_STATUS_UNSPECIFIED_FAILURE;
717 }
718 res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
719 wpa_ie, wpa_ie_len,
720 elems.mdie, elems.mdie_len);
721 if (res == WPA_INVALID_GROUP)
722 resp = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
723 else if (res == WPA_INVALID_PAIRWISE)
724 resp = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID;
725 else if (res == WPA_INVALID_AKMP)
726 resp = WLAN_STATUS_AKMP_NOT_VALID;
727 else if (res == WPA_ALLOC_FAIL)
728 resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
729 #ifdef CONFIG_IEEE80211W
730 else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION)
731 resp = WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION;
732 else if (res == WPA_INVALID_MGMT_GROUP_CIPHER)
733 resp = WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION;
734 #endif /* CONFIG_IEEE80211W */
735 else if (res == WPA_INVALID_MDIE)
736 resp = WLAN_STATUS_INVALID_MDIE;
737 else if (res != WPA_IE_OK)
738 resp = WLAN_STATUS_INVALID_IE;
739 if (resp != WLAN_STATUS_SUCCESS)
740 return resp;
741 #ifdef CONFIG_IEEE80211W
742 if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
743 sta->sa_query_count > 0)
744 ap_check_sa_query_timeout(hapd, sta);
745 if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
746 (!reassoc || sta->auth_alg != WLAN_AUTH_FT)) {
747 /*
748 * STA has already been associated with MFP and SA
749 * Query timeout has not been reached. Reject the
750 * association attempt temporarily and start SA Query,
751 * if one is not pending.
752 */
753
754 if (sta->sa_query_count == 0)
755 ap_sta_start_sa_query(hapd, sta);
756
757 return WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY;
758 }
759
760 if (wpa_auth_uses_mfp(sta->wpa_sm))
761 sta->flags |= WLAN_STA_MFP;
762 else
763 sta->flags &= ~WLAN_STA_MFP;
764 #endif /* CONFIG_IEEE80211W */
765
766 #ifdef CONFIG_IEEE80211R
767 if (sta->auth_alg == WLAN_AUTH_FT) {
768 if (!reassoc) {
769 wpa_printf(MSG_DEBUG, "FT: " MACSTR " tried "
770 "to use association (not "
771 "re-association) with FT auth_alg",
772 MAC2STR(sta->addr));
773 return WLAN_STATUS_UNSPECIFIED_FAILURE;
774 }
775
776 resp = wpa_ft_validate_reassoc(sta->wpa_sm, ies,
777 ies_len);
778 if (resp != WLAN_STATUS_SUCCESS)
779 return resp;
780 }
781 #endif /* CONFIG_IEEE80211R */
782
783 #ifdef CONFIG_IEEE80211N
784 if ((sta->flags & WLAN_STA_HT) &&
785 wpa_auth_get_pairwise(sta->wpa_sm) == WPA_CIPHER_TKIP) {
786 hostapd_logger(hapd, sta->addr,
787 HOSTAPD_MODULE_IEEE80211,
788 HOSTAPD_LEVEL_INFO,
789 "Station tried to use TKIP with HT "
790 "association");
791 return WLAN_STATUS_CIPHER_REJECTED_PER_POLICY;
792 }
793 #endif /* CONFIG_IEEE80211N */
794 } else
795 wpa_auth_sta_no_wpa(sta->wpa_sm);
796
797 return WLAN_STATUS_SUCCESS;
798 }
799
800
801 static void send_deauth(struct hostapd_data *hapd, const u8 *addr,
802 u16 reason_code)
803 {
804 int send_len;
805 struct ieee80211_mgmt reply;
806
807 os_memset(&reply, 0, sizeof(reply));
808 reply.frame_control =
809 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_DEAUTH);
810 os_memcpy(reply.da, addr, ETH_ALEN);
811 os_memcpy(reply.sa, hapd->own_addr, ETH_ALEN);
812 os_memcpy(reply.bssid, hapd->own_addr, ETH_ALEN);
813
814 send_len = IEEE80211_HDRLEN + sizeof(reply.u.deauth);
815 reply.u.deauth.reason_code = host_to_le16(reason_code);
816
817 if (hapd->drv.send_mgmt_frame(hapd, &reply, send_len) < 0)
818 wpa_printf(MSG_INFO, "Failed to send deauth: %s",
819 strerror(errno));
820 }
821
822
823 static void send_assoc_resp(struct hostapd_data *hapd, struct sta_info *sta,
824 u16 status_code, int reassoc, const u8 *ies,
825 size_t ies_len)
826 {
827 int send_len;
828 u8 buf[sizeof(struct ieee80211_mgmt) + 1024];
829 struct ieee80211_mgmt *reply;
830 u8 *p;
831
832 os_memset(buf, 0, sizeof(buf));
833 reply = (struct ieee80211_mgmt *) buf;
834 reply->frame_control =
835 IEEE80211_FC(WLAN_FC_TYPE_MGMT,
836 (reassoc ? WLAN_FC_STYPE_REASSOC_RESP :
837 WLAN_FC_STYPE_ASSOC_RESP));
838 os_memcpy(reply->da, sta->addr, ETH_ALEN);
839 os_memcpy(reply->sa, hapd->own_addr, ETH_ALEN);
840 os_memcpy(reply->bssid, hapd->own_addr, ETH_ALEN);
841
842 send_len = IEEE80211_HDRLEN;
843 send_len += sizeof(reply->u.assoc_resp);
844 reply->u.assoc_resp.capab_info =
845 host_to_le16(hostapd_own_capab_info(hapd, sta, 0));
846 reply->u.assoc_resp.status_code = host_to_le16(status_code);
847 reply->u.assoc_resp.aid = host_to_le16((sta ? sta->aid : 0)
848 | BIT(14) | BIT(15));
849 /* Supported rates */
850 p = hostapd_eid_supp_rates(hapd, reply->u.assoc_resp.variable);
851 /* Extended supported rates */
852 p = hostapd_eid_ext_supp_rates(hapd, p);
853 if (sta->flags & WLAN_STA_WMM)
854 p = hostapd_eid_wmm(hapd, p);
855
856 #ifdef CONFIG_IEEE80211N
857 p = hostapd_eid_ht_capabilities(hapd, p);
858 p = hostapd_eid_ht_operation(hapd, p);
859 #endif /* CONFIG_IEEE80211N */
860
861 #ifdef CONFIG_IEEE80211R
862 if (status_code == WLAN_STATUS_SUCCESS) {
863 /* IEEE 802.11r: Mobility Domain Information, Fast BSS
864 * Transition Information, RSN, [RIC Response] */
865 p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, p,
866 buf + sizeof(buf) - p,
867 sta->auth_alg, ies, ies_len);
868 }
869 #endif /* CONFIG_IEEE80211R */
870
871 #ifdef CONFIG_IEEE80211W
872 if (status_code == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY)
873 p = hostapd_eid_assoc_comeback_time(hapd, sta, p);
874 #endif /* CONFIG_IEEE80211W */
875
876 send_len += p - reply->u.assoc_resp.variable;
877
878 if (hapd->drv.send_mgmt_frame(hapd, reply, send_len) < 0)
879 wpa_printf(MSG_INFO, "Failed to send assoc resp: %s",
880 strerror(errno));
881 }
882
883
884 static void handle_assoc(struct hostapd_data *hapd,
885 const struct ieee80211_mgmt *mgmt, size_t len,
886 int reassoc)
887 {
888 u16 capab_info, listen_interval;
889 u16 resp = WLAN_STATUS_SUCCESS;
890 const u8 *pos;
891 int left, i;
892 struct sta_info *sta;
893
894 if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_req) :
895 sizeof(mgmt->u.assoc_req))) {
896 printf("handle_assoc(reassoc=%d) - too short payload (len=%lu)"
897 "\n", reassoc, (unsigned long) len);
898 return;
899 }
900
901 if (reassoc) {
902 capab_info = le_to_host16(mgmt->u.reassoc_req.capab_info);
903 listen_interval = le_to_host16(
904 mgmt->u.reassoc_req.listen_interval);
905 wpa_printf(MSG_DEBUG, "reassociation request: STA=" MACSTR
906 " capab_info=0x%02x listen_interval=%d current_ap="
907 MACSTR,
908 MAC2STR(mgmt->sa), capab_info, listen_interval,
909 MAC2STR(mgmt->u.reassoc_req.current_ap));
910 left = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.reassoc_req));
911 pos = mgmt->u.reassoc_req.variable;
912 } else {
913 capab_info = le_to_host16(mgmt->u.assoc_req.capab_info);
914 listen_interval = le_to_host16(
915 mgmt->u.assoc_req.listen_interval);
916 wpa_printf(MSG_DEBUG, "association request: STA=" MACSTR
917 " capab_info=0x%02x listen_interval=%d",
918 MAC2STR(mgmt->sa), capab_info, listen_interval);
919 left = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.assoc_req));
920 pos = mgmt->u.assoc_req.variable;
921 }
922
923 sta = ap_get_sta(hapd, mgmt->sa);
924 #ifdef CONFIG_IEEE80211R
925 if (sta && sta->auth_alg == WLAN_AUTH_FT &&
926 (sta->flags & WLAN_STA_AUTH) == 0) {
927 wpa_printf(MSG_DEBUG, "FT: Allow STA " MACSTR " to associate "
928 "prior to authentication since it is using "
929 "over-the-DS FT", MAC2STR(mgmt->sa));
930 } else
931 #endif /* CONFIG_IEEE80211R */
932 if (sta == NULL || (sta->flags & WLAN_STA_AUTH) == 0) {
933 hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
934 HOSTAPD_LEVEL_INFO, "Station tried to "
935 "associate before authentication "
936 "(aid=%d flags=0x%x)",
937 sta ? sta->aid : -1,
938 sta ? sta->flags : 0);
939 send_deauth(hapd, mgmt->sa,
940 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA);
941 return;
942 }
943
944 if (hapd->tkip_countermeasures) {
945 resp = WLAN_REASON_MICHAEL_MIC_FAILURE;
946 goto fail;
947 }
948
949 if (listen_interval > hapd->conf->max_listen_interval) {
950 hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
951 HOSTAPD_LEVEL_DEBUG,
952 "Too large Listen Interval (%d)",
953 listen_interval);
954 resp = WLAN_STATUS_ASSOC_DENIED_LISTEN_INT_TOO_LARGE;
955 goto fail;
956 }
957
958 /* followed by SSID and Supported rates; and HT capabilities if 802.11n
959 * is used */
960 resp = check_assoc_ies(hapd, sta, pos, left, reassoc);
961 if (resp != WLAN_STATUS_SUCCESS)
962 goto fail;
963
964 if (hostapd_get_aid(hapd, sta) < 0) {
965 hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
966 HOSTAPD_LEVEL_INFO, "No room for more AIDs");
967 resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA;
968 goto fail;
969 }
970
971 sta->capability = capab_info;
972 sta->listen_interval = listen_interval;
973
974 if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G)
975 sta->flags |= WLAN_STA_NONERP;
976 for (i = 0; i < sta->supported_rates_len; i++) {
977 if ((sta->supported_rates[i] & 0x7f) > 22) {
978 sta->flags &= ~WLAN_STA_NONERP;
979 break;
980 }
981 }
982 if (sta->flags & WLAN_STA_NONERP && !sta->nonerp_set) {
983 sta->nonerp_set = 1;
984 hapd->iface->num_sta_non_erp++;
985 if (hapd->iface->num_sta_non_erp == 1)
986 ieee802_11_set_beacons(hapd->iface);
987 }
988
989 if (!(sta->capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) &&
990 !sta->no_short_slot_time_set) {
991 sta->no_short_slot_time_set = 1;
992 hapd->iface->num_sta_no_short_slot_time++;
993 if (hapd->iface->current_mode->mode ==
994 HOSTAPD_MODE_IEEE80211G &&
995 hapd->iface->num_sta_no_short_slot_time == 1)
996 ieee802_11_set_beacons(hapd->iface);
997 }
998
999 if (sta->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
1000 sta->flags |= WLAN_STA_SHORT_PREAMBLE;
1001 else
1002 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
1003
1004 if (!(sta->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) &&
1005 !sta->no_short_preamble_set) {
1006 sta->no_short_preamble_set = 1;
1007 hapd->iface->num_sta_no_short_preamble++;
1008 if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
1009 && hapd->iface->num_sta_no_short_preamble == 1)
1010 ieee802_11_set_beacons(hapd->iface);
1011 }
1012
1013 #ifdef CONFIG_IEEE80211N
1014 update_ht_state(hapd, sta);
1015 #endif /* CONFIG_IEEE80211N */
1016
1017 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1018 HOSTAPD_LEVEL_DEBUG,
1019 "association OK (aid %d)", sta->aid);
1020 /* Station will be marked associated, after it acknowledges AssocResp
1021 */
1022
1023 #ifdef CONFIG_IEEE80211W
1024 if ((sta->flags & WLAN_STA_MFP) && sta->sa_query_timed_out) {
1025 wpa_printf(MSG_DEBUG, "Allowing %sassociation after timed out "
1026 "SA Query procedure", reassoc ? "re" : "");
1027 /* TODO: Send a protected Disassociate frame to the STA using
1028 * the old key and Reason Code "Previous Authentication no
1029 * longer valid". Make sure this is only sent protected since
1030 * unprotected frame would be received by the STA that is now
1031 * trying to associate.
1032 */
1033 }
1034 #endif /* CONFIG_IEEE80211W */
1035
1036 if (reassoc) {
1037 os_memcpy(sta->previous_ap, mgmt->u.reassoc_req.current_ap,
1038 ETH_ALEN);
1039 }
1040
1041 if (sta->last_assoc_req)
1042 os_free(sta->last_assoc_req);
1043 sta->last_assoc_req = os_malloc(len);
1044 if (sta->last_assoc_req)
1045 os_memcpy(sta->last_assoc_req, mgmt, len);
1046
1047 /* Make sure that the previously registered inactivity timer will not
1048 * remove the STA immediately. */
1049 sta->timeout_next = STA_NULLFUNC;
1050
1051 fail:
1052 send_assoc_resp(hapd, sta, resp, reassoc, pos, left);
1053 }
1054
1055
1056 static void handle_disassoc(struct hostapd_data *hapd,
1057 const struct ieee80211_mgmt *mgmt, size_t len)
1058 {
1059 struct sta_info *sta;
1060
1061 if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.disassoc)) {
1062 printf("handle_disassoc - too short payload (len=%lu)\n",
1063 (unsigned long) len);
1064 return;
1065 }
1066
1067 wpa_printf(MSG_DEBUG, "disassocation: STA=" MACSTR " reason_code=%d",
1068 MAC2STR(mgmt->sa),
1069 le_to_host16(mgmt->u.disassoc.reason_code));
1070
1071 sta = ap_get_sta(hapd, mgmt->sa);
1072 if (sta == NULL) {
1073 printf("Station " MACSTR " trying to disassociate, but it "
1074 "is not associated.\n", MAC2STR(mgmt->sa));
1075 return;
1076 }
1077
1078 sta->flags &= ~WLAN_STA_ASSOC;
1079 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_DISCONNECTED MACSTR,
1080 MAC2STR(sta->addr));
1081 wpa_auth_sm_event(sta->wpa_sm, WPA_DISASSOC);
1082 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1083 HOSTAPD_LEVEL_INFO, "disassociated");
1084 sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
1085 ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
1086 /* Stop Accounting and IEEE 802.1X sessions, but leave the STA
1087 * authenticated. */
1088 accounting_sta_stop(hapd, sta);
1089 ieee802_1x_free_station(sta);
1090 hapd->drv.sta_remove(hapd, sta->addr);
1091
1092 if (sta->timeout_next == STA_NULLFUNC ||
1093 sta->timeout_next == STA_DISASSOC) {
1094 sta->timeout_next = STA_DEAUTH;
1095 eloop_cancel_timeout(ap_handle_timer, hapd, sta);
1096 eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer,
1097 hapd, sta);
1098 }
1099
1100 mlme_disassociate_indication(
1101 hapd, sta, le_to_host16(mgmt->u.disassoc.reason_code));
1102 }
1103
1104
1105 static void handle_deauth(struct hostapd_data *hapd,
1106 const struct ieee80211_mgmt *mgmt, size_t len)
1107 {
1108 struct sta_info *sta;
1109
1110 if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.deauth)) {
1111 printf("handle_deauth - too short payload (len=%lu)\n",
1112 (unsigned long) len);
1113 return;
1114 }
1115
1116 wpa_printf(MSG_DEBUG, "deauthentication: STA=" MACSTR
1117 " reason_code=%d",
1118 MAC2STR(mgmt->sa),
1119 le_to_host16(mgmt->u.deauth.reason_code));
1120
1121 sta = ap_get_sta(hapd, mgmt->sa);
1122 if (sta == NULL) {
1123 printf("Station " MACSTR " trying to deauthenticate, but it "
1124 "is not authenticated.\n", MAC2STR(mgmt->sa));
1125 return;
1126 }
1127
1128 sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
1129 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_DISCONNECTED MACSTR,
1130 MAC2STR(sta->addr));
1131 wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH);
1132 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1133 HOSTAPD_LEVEL_DEBUG, "deauthenticated");
1134 mlme_deauthenticate_indication(
1135 hapd, sta, le_to_host16(mgmt->u.deauth.reason_code));
1136 sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
1137 ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
1138 ap_free_sta(hapd, sta);
1139 }
1140
1141
1142 static void handle_beacon(struct hostapd_data *hapd,
1143 const struct ieee80211_mgmt *mgmt, size_t len,
1144 struct hostapd_frame_info *fi)
1145 {
1146 struct ieee802_11_elems elems;
1147
1148 if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.beacon)) {
1149 printf("handle_beacon - too short payload (len=%lu)\n",
1150 (unsigned long) len);
1151 return;
1152 }
1153
1154 (void) ieee802_11_parse_elems(mgmt->u.beacon.variable,
1155 len - (IEEE80211_HDRLEN +
1156 sizeof(mgmt->u.beacon)), &elems,
1157 0);
1158
1159 ap_list_process_beacon(hapd->iface, mgmt, &elems, fi);
1160 }
1161
1162
1163 #ifdef CONFIG_IEEE80211W
1164
1165 /* MLME-SAQuery.request */
1166 void ieee802_11_send_sa_query_req(struct hostapd_data *hapd,
1167 const u8 *addr, const u8 *trans_id)
1168 {
1169 struct ieee80211_mgmt mgmt;
1170 u8 *end;
1171
1172 wpa_printf(MSG_DEBUG, "IEEE 802.11: Sending SA Query Request to "
1173 MACSTR, MAC2STR(addr));
1174 wpa_hexdump(MSG_DEBUG, "IEEE 802.11: SA Query Transaction ID",
1175 trans_id, WLAN_SA_QUERY_TR_ID_LEN);
1176
1177 os_memset(&mgmt, 0, sizeof(mgmt));
1178 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
1179 WLAN_FC_STYPE_ACTION);
1180 os_memcpy(mgmt.da, addr, ETH_ALEN);
1181 os_memcpy(mgmt.sa, hapd->own_addr, ETH_ALEN);
1182 os_memcpy(mgmt.bssid, hapd->own_addr, ETH_ALEN);
1183 mgmt.u.action.category = WLAN_ACTION_SA_QUERY;
1184 mgmt.u.action.u.sa_query_req.action = WLAN_SA_QUERY_REQUEST;
1185 os_memcpy(mgmt.u.action.u.sa_query_req.trans_id, trans_id,
1186 WLAN_SA_QUERY_TR_ID_LEN);
1187 end = mgmt.u.action.u.sa_query_req.trans_id + WLAN_SA_QUERY_TR_ID_LEN;
1188 if (hapd->drv.send_mgmt_frame(hapd, &mgmt, end - (u8 *) &mgmt) < 0)
1189 perror("ieee802_11_send_sa_query_req: send");
1190 }
1191
1192
1193 static void hostapd_sa_query_action(struct hostapd_data *hapd,
1194 const struct ieee80211_mgmt *mgmt,
1195 size_t len)
1196 {
1197 struct sta_info *sta;
1198 const u8 *end;
1199 int i;
1200
1201 end = mgmt->u.action.u.sa_query_resp.trans_id +
1202 WLAN_SA_QUERY_TR_ID_LEN;
1203 if (((u8 *) mgmt) + len < end) {
1204 wpa_printf(MSG_DEBUG, "IEEE 802.11: Too short SA Query Action "
1205 "frame (len=%lu)", (unsigned long) len);
1206 return;
1207 }
1208
1209 if (mgmt->u.action.u.sa_query_resp.action != WLAN_SA_QUERY_RESPONSE) {
1210 wpa_printf(MSG_DEBUG, "IEEE 802.11: Unexpected SA Query "
1211 "Action %d", mgmt->u.action.u.sa_query_resp.action);
1212 return;
1213 }
1214
1215 wpa_printf(MSG_DEBUG, "IEEE 802.11: Received SA Query Response from "
1216 MACSTR, MAC2STR(mgmt->sa));
1217 wpa_hexdump(MSG_DEBUG, "IEEE 802.11: SA Query Transaction ID",
1218 mgmt->u.action.u.sa_query_resp.trans_id,
1219 WLAN_SA_QUERY_TR_ID_LEN);
1220
1221 /* MLME-SAQuery.confirm */
1222
1223 sta = ap_get_sta(hapd, mgmt->sa);
1224 if (sta == NULL || sta->sa_query_trans_id == NULL) {
1225 wpa_printf(MSG_DEBUG, "IEEE 802.11: No matching STA with "
1226 "pending SA Query request found");
1227 return;
1228 }
1229
1230 for (i = 0; i < sta->sa_query_count; i++) {
1231 if (os_memcmp(sta->sa_query_trans_id +
1232 i * WLAN_SA_QUERY_TR_ID_LEN,
1233 mgmt->u.action.u.sa_query_resp.trans_id,
1234 WLAN_SA_QUERY_TR_ID_LEN) == 0)
1235 break;
1236 }
1237
1238 if (i >= sta->sa_query_count) {
1239 wpa_printf(MSG_DEBUG, "IEEE 802.11: No matching SA Query "
1240 "transaction identifier found");
1241 return;
1242 }
1243
1244 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1245 HOSTAPD_LEVEL_DEBUG,
1246 "Reply to pending SA Query received");
1247 ap_sta_stop_sa_query(hapd, sta);
1248 }
1249
1250
1251 static int robust_action_frame(u8 category)
1252 {
1253 return category != WLAN_ACTION_PUBLIC &&
1254 category != WLAN_ACTION_HT;
1255 }
1256 #endif /* CONFIG_IEEE80211W */
1257
1258
1259 static void handle_action(struct hostapd_data *hapd,
1260 const struct ieee80211_mgmt *mgmt, size_t len)
1261 {
1262 struct sta_info *sta;
1263
1264 if (len < IEEE80211_HDRLEN + 1) {
1265 hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
1266 HOSTAPD_LEVEL_DEBUG,
1267 "handle_action - too short payload (len=%lu)",
1268 (unsigned long) len);
1269 return;
1270 }
1271
1272 sta = ap_get_sta(hapd, mgmt->sa);
1273 #ifdef CONFIG_IEEE80211W
1274 if (sta && (sta->flags & WLAN_STA_MFP) &&
1275 !(mgmt->frame_control & host_to_le16(WLAN_FC_ISWEP) &&
1276 robust_action_frame(mgmt->u.action.category))) {
1277 hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
1278 HOSTAPD_LEVEL_DEBUG,
1279 "Dropped unprotected Robust Action frame from "
1280 "an MFP STA");
1281 return;
1282 }
1283 #endif /* CONFIG_IEEE80211W */
1284
1285 switch (mgmt->u.action.category) {
1286 #ifdef CONFIG_IEEE80211R
1287 case WLAN_ACTION_FT:
1288 {
1289 if (sta == NULL || !(sta->flags & WLAN_STA_ASSOC)) {
1290 wpa_printf(MSG_DEBUG, "IEEE 802.11: Ignored FT Action "
1291 "frame from unassociated STA " MACSTR,
1292 MAC2STR(mgmt->sa));
1293 return;
1294 }
1295
1296 if (wpa_ft_action_rx(sta->wpa_sm, (u8 *) &mgmt->u.action,
1297 len - IEEE80211_HDRLEN))
1298 break;
1299
1300 return;
1301 }
1302 #endif /* CONFIG_IEEE80211R */
1303 case WLAN_ACTION_WMM:
1304 hostapd_wmm_action(hapd, mgmt, len);
1305 return;
1306 #ifdef CONFIG_IEEE80211W
1307 case WLAN_ACTION_SA_QUERY:
1308 hostapd_sa_query_action(hapd, mgmt, len);
1309 return;
1310 #endif /* CONFIG_IEEE80211W */
1311 }
1312
1313 hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
1314 HOSTAPD_LEVEL_DEBUG,
1315 "handle_action - unknown action category %d or invalid "
1316 "frame",
1317 mgmt->u.action.category);
1318 if (!(mgmt->da[0] & 0x01) && !(mgmt->u.action.category & 0x80) &&
1319 !(mgmt->sa[0] & 0x01)) {
1320 struct ieee80211_mgmt *resp;
1321
1322 /*
1323 * IEEE 802.11-REVma/D9.0 - 7.3.1.11
1324 * Return the Action frame to the source without change
1325 * except that MSB of the Category set to 1.
1326 */
1327 wpa_printf(MSG_DEBUG, "IEEE 802.11: Return unknown Action "
1328 "frame back to sender");
1329 resp = os_malloc(len);
1330 if (resp == NULL)
1331 return;
1332 os_memcpy(resp, mgmt, len);
1333 os_memcpy(resp->da, resp->sa, ETH_ALEN);
1334 os_memcpy(resp->sa, hapd->own_addr, ETH_ALEN);
1335 os_memcpy(resp->bssid, hapd->own_addr, ETH_ALEN);
1336 resp->u.action.category |= 0x80;
1337
1338 hapd->drv.send_mgmt_frame(hapd, resp, len);
1339 os_free(resp);
1340 }
1341 }
1342
1343
1344 /**
1345 * ieee802_11_mgmt - process incoming IEEE 802.11 management frames
1346 * @hapd: hostapd BSS data structure (the BSS to which the management frame was
1347 * sent to)
1348 * @buf: management frame data (starting from IEEE 802.11 header)
1349 * @len: length of frame data in octets
1350 * @fi: meta data about received frame (signal level, etc.)
1351 *
1352 * Process all incoming IEEE 802.11 management frames. This will be called for
1353 * each frame received from the kernel driver through wlan#ap interface. In
1354 * addition, it can be called to re-inserted pending frames (e.g., when using
1355 * external RADIUS server as an MAC ACL).
1356 */
1357 void ieee802_11_mgmt(struct hostapd_data *hapd, const u8 *buf, size_t len,
1358 struct hostapd_frame_info *fi)
1359 {
1360 struct ieee80211_mgmt *mgmt;
1361 int broadcast;
1362 u16 fc, stype;
1363
1364 mgmt = (struct ieee80211_mgmt *) buf;
1365 fc = le_to_host16(mgmt->frame_control);
1366 stype = WLAN_FC_GET_STYPE(fc);
1367
1368 if (stype == WLAN_FC_STYPE_BEACON) {
1369 handle_beacon(hapd, mgmt, len, fi);
1370 return;
1371 }
1372
1373 broadcast = mgmt->bssid[0] == 0xff && mgmt->bssid[1] == 0xff &&
1374 mgmt->bssid[2] == 0xff && mgmt->bssid[3] == 0xff &&
1375 mgmt->bssid[4] == 0xff && mgmt->bssid[5] == 0xff;
1376
1377 if (!broadcast &&
1378 os_memcmp(mgmt->bssid, hapd->own_addr, ETH_ALEN) != 0) {
1379 printf("MGMT: BSSID=" MACSTR " not our address\n",
1380 MAC2STR(mgmt->bssid));
1381 return;
1382 }
1383
1384
1385 if (stype == WLAN_FC_STYPE_PROBE_REQ) {
1386 handle_probe_req(hapd, mgmt, len);
1387 return;
1388 }
1389
1390 if (os_memcmp(mgmt->da, hapd->own_addr, ETH_ALEN) != 0) {
1391 hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
1392 HOSTAPD_LEVEL_DEBUG,
1393 "MGMT: DA=" MACSTR " not our address",
1394 MAC2STR(mgmt->da));
1395 return;
1396 }
1397
1398 switch (stype) {
1399 case WLAN_FC_STYPE_AUTH:
1400 wpa_printf(MSG_DEBUG, "mgmt::auth");
1401 handle_auth(hapd, mgmt, len);
1402 break;
1403 case WLAN_FC_STYPE_ASSOC_REQ:
1404 wpa_printf(MSG_DEBUG, "mgmt::assoc_req");
1405 handle_assoc(hapd, mgmt, len, 0);
1406 break;
1407 case WLAN_FC_STYPE_REASSOC_REQ:
1408 wpa_printf(MSG_DEBUG, "mgmt::reassoc_req");
1409 handle_assoc(hapd, mgmt, len, 1);
1410 break;
1411 case WLAN_FC_STYPE_DISASSOC:
1412 wpa_printf(MSG_DEBUG, "mgmt::disassoc");
1413 handle_disassoc(hapd, mgmt, len);
1414 break;
1415 case WLAN_FC_STYPE_DEAUTH:
1416 wpa_printf(MSG_DEBUG, "mgmt::deauth");
1417 handle_deauth(hapd, mgmt, len);
1418 break;
1419 case WLAN_FC_STYPE_ACTION:
1420 wpa_printf(MSG_DEBUG, "mgmt::action");
1421 handle_action(hapd, mgmt, len);
1422 break;
1423 default:
1424 hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
1425 HOSTAPD_LEVEL_DEBUG,
1426 "unknown mgmt frame subtype %d", stype);
1427 break;
1428 }
1429 }
1430
1431
1432 static void handle_auth_cb(struct hostapd_data *hapd,
1433 const struct ieee80211_mgmt *mgmt,
1434 size_t len, int ok)
1435 {
1436 u16 auth_alg, auth_transaction, status_code;
1437 struct sta_info *sta;
1438
1439 if (!ok) {
1440 hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211,
1441 HOSTAPD_LEVEL_NOTICE,
1442 "did not acknowledge authentication response");
1443 return;
1444 }
1445
1446 if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.auth)) {
1447 printf("handle_auth_cb - too short payload (len=%lu)\n",
1448 (unsigned long) len);
1449 return;
1450 }
1451
1452 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
1453 auth_transaction = le_to_host16(mgmt->u.auth.auth_transaction);
1454 status_code = le_to_host16(mgmt->u.auth.status_code);
1455
1456 sta = ap_get_sta(hapd, mgmt->da);
1457 if (!sta) {
1458 printf("handle_auth_cb: STA " MACSTR " not found\n",
1459 MAC2STR(mgmt->da));
1460 return;
1461 }
1462
1463 if (status_code == WLAN_STATUS_SUCCESS &&
1464 ((auth_alg == WLAN_AUTH_OPEN && auth_transaction == 2) ||
1465 (auth_alg == WLAN_AUTH_SHARED_KEY && auth_transaction == 4))) {
1466 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1467 HOSTAPD_LEVEL_INFO, "authenticated");
1468 sta->flags |= WLAN_STA_AUTH;
1469 }
1470 }
1471
1472
1473 static void handle_assoc_cb(struct hostapd_data *hapd,
1474 const struct ieee80211_mgmt *mgmt,
1475 size_t len, int reassoc, int ok)
1476 {
1477 u16 status;
1478 struct sta_info *sta;
1479 int new_assoc = 1;
1480 struct ieee80211_ht_capabilities ht_cap;
1481
1482 if (!ok) {
1483 hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211,
1484 HOSTAPD_LEVEL_DEBUG,
1485 "did not acknowledge association response");
1486 return;
1487 }
1488
1489 if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_resp) :
1490 sizeof(mgmt->u.assoc_resp))) {
1491 printf("handle_assoc_cb(reassoc=%d) - too short payload "
1492 "(len=%lu)\n", reassoc, (unsigned long) len);
1493 return;
1494 }
1495
1496 if (reassoc)
1497 status = le_to_host16(mgmt->u.reassoc_resp.status_code);
1498 else
1499 status = le_to_host16(mgmt->u.assoc_resp.status_code);
1500
1501 sta = ap_get_sta(hapd, mgmt->da);
1502 if (!sta) {
1503 printf("handle_assoc_cb: STA " MACSTR " not found\n",
1504 MAC2STR(mgmt->da));
1505 return;
1506 }
1507
1508 if (status != WLAN_STATUS_SUCCESS)
1509 goto fail;
1510
1511 /* Stop previous accounting session, if one is started, and allocate
1512 * new session id for the new session. */
1513 accounting_sta_stop(hapd, sta);
1514
1515 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1516 HOSTAPD_LEVEL_INFO,
1517 "associated (aid %d)",
1518 sta->aid);
1519
1520 if (sta->flags & WLAN_STA_ASSOC)
1521 new_assoc = 0;
1522 sta->flags |= WLAN_STA_ASSOC;
1523 if (!hapd->conf->ieee802_1x && !hapd->conf->wpa) {
1524 /* Open or static WEP; no separate authorization */
1525 sta->flags |= WLAN_STA_AUTHORIZED;
1526 wpa_msg(hapd->msg_ctx, MSG_INFO,
1527 AP_STA_CONNECTED MACSTR, MAC2STR(sta->addr));
1528 }
1529
1530 if (reassoc)
1531 mlme_reassociate_indication(hapd, sta);
1532 else
1533 mlme_associate_indication(hapd, sta);
1534
1535 #ifdef CONFIG_IEEE80211W
1536 sta->sa_query_timed_out = 0;
1537 #endif /* CONFIG_IEEE80211W */
1538
1539 /*
1540 * Remove the STA entry in order to make sure the STA PS state gets
1541 * cleared and configuration gets updated in case of reassociation back
1542 * to the same AP.
1543 */
1544 hapd->drv.sta_remove(hapd, sta->addr);
1545
1546 #ifdef CONFIG_IEEE80211N
1547 if (sta->flags & WLAN_STA_HT)
1548 hostapd_get_ht_capab(hapd, sta->ht_capabilities, &ht_cap);
1549 #endif /* CONFIG_IEEE80211N */
1550
1551 if (hapd->drv.sta_add(hapd->conf->iface, hapd, sta->addr, sta->aid,
1552 sta->capability, sta->supported_rates,
1553 sta->supported_rates_len, sta->listen_interval,
1554 sta->flags & WLAN_STA_HT ? &ht_cap : NULL)) {
1555 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1556 HOSTAPD_LEVEL_NOTICE,
1557 "Could not add STA to kernel driver");
1558 }
1559
1560 if (sta->eapol_sm == NULL) {
1561 /*
1562 * This STA does not use RADIUS server for EAP authentication,
1563 * so bind it to the selected VLAN interface now, since the
1564 * interface selection is not going to change anymore.
1565 */
1566 ap_sta_bind_vlan(hapd, sta, 0);
1567 } else if (sta->vlan_id) {
1568 /* VLAN ID already set (e.g., by PMKSA caching), so bind STA */
1569 ap_sta_bind_vlan(hapd, sta, 0);
1570 }
1571
1572 hapd->drv.set_sta_flags(hapd, sta);
1573
1574 if (sta->auth_alg == WLAN_AUTH_FT)
1575 wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT);
1576 else
1577 wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
1578 hapd->new_assoc_sta_cb(hapd, sta, !new_assoc);
1579
1580 ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
1581
1582 fail:
1583 /* Copy of the association request is not needed anymore */
1584 if (sta->last_assoc_req) {
1585 os_free(sta->last_assoc_req);
1586 sta->last_assoc_req = NULL;
1587 }
1588 }
1589
1590
1591 /**
1592 * ieee802_11_mgmt_cb - Process management frame TX status callback
1593 * @hapd: hostapd BSS data structure (the BSS from which the management frame
1594 * was sent from)
1595 * @buf: management frame data (starting from IEEE 802.11 header)
1596 * @len: length of frame data in octets
1597 * @stype: management frame subtype from frame control field
1598 * @ok: Whether the frame was ACK'ed
1599 */
1600 void ieee802_11_mgmt_cb(struct hostapd_data *hapd, const u8 *buf, size_t len,
1601 u16 stype, int ok)
1602 {
1603 const struct ieee80211_mgmt *mgmt;
1604 mgmt = (const struct ieee80211_mgmt *) buf;
1605
1606 switch (stype) {
1607 case WLAN_FC_STYPE_AUTH:
1608 wpa_printf(MSG_DEBUG, "mgmt::auth cb");
1609 handle_auth_cb(hapd, mgmt, len, ok);
1610 break;
1611 case WLAN_FC_STYPE_ASSOC_RESP:
1612 wpa_printf(MSG_DEBUG, "mgmt::assoc_resp cb");
1613 handle_assoc_cb(hapd, mgmt, len, 0, ok);
1614 break;
1615 case WLAN_FC_STYPE_REASSOC_RESP:
1616 wpa_printf(MSG_DEBUG, "mgmt::reassoc_resp cb");
1617 handle_assoc_cb(hapd, mgmt, len, 1, ok);
1618 break;
1619 case WLAN_FC_STYPE_PROBE_RESP:
1620 wpa_printf(MSG_DEBUG, "mgmt::proberesp cb");
1621 break;
1622 case WLAN_FC_STYPE_DEAUTH:
1623 /* ignore */
1624 break;
1625 case WLAN_FC_STYPE_ACTION:
1626 wpa_printf(MSG_DEBUG, "mgmt::action cb");
1627 break;
1628 default:
1629 printf("unknown mgmt cb frame subtype %d\n", stype);
1630 break;
1631 }
1632 }
1633
1634
1635 int ieee802_11_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen)
1636 {
1637 /* TODO */
1638 return 0;
1639 }
1640
1641
1642 int ieee802_11_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta,
1643 char *buf, size_t buflen)
1644 {
1645 /* TODO */
1646 return 0;
1647 }
1648
1649
1650 void hostapd_tx_status(struct hostapd_data *hapd, const u8 *addr,
1651 const u8 *buf, size_t len, int ack)
1652 {
1653 struct sta_info *sta;
1654 struct hostapd_iface *iface = hapd->iface;
1655
1656 sta = ap_get_sta(hapd, addr);
1657 if (sta == NULL && iface->num_bss > 1) {
1658 size_t j;
1659 for (j = 0; j < iface->num_bss; j++) {
1660 hapd = iface->bss[j];
1661 sta = ap_get_sta(hapd, addr);
1662 if (sta)
1663 break;
1664 }
1665 }
1666 if (sta == NULL)
1667 return;
1668 if (sta->flags & WLAN_STA_PENDING_POLL) {
1669 wpa_printf(MSG_DEBUG, "STA " MACSTR " %s pending "
1670 "activity poll", MAC2STR(sta->addr),
1671 ack ? "ACKed" : "did not ACK");
1672 if (ack)
1673 sta->flags &= ~WLAN_STA_PENDING_POLL;
1674 }
1675
1676 ieee802_1x_tx_status(hapd, sta, buf, len, ack);
1677 }
1678
1679
1680 void ieee802_11_rx_from_unknown(struct hostapd_data *hapd, const u8 *src,
1681 int wds)
1682 {
1683 struct sta_info *sta;
1684
1685 sta = ap_get_sta(hapd, src);
1686 if (sta && (sta->flags & WLAN_STA_ASSOC)) {
1687 if (wds && !(sta->flags & WLAN_STA_WDS)) {
1688 wpa_printf(MSG_DEBUG, "Enable 4-address WDS mode for "
1689 "STA " MACSTR " (aid %u)",
1690 MAC2STR(sta->addr), sta->aid);
1691 sta->flags |= WLAN_STA_WDS;
1692 hapd->drv.set_wds_sta(hapd, sta->addr, sta->aid, 1);
1693 }
1694 return;
1695 }
1696
1697 wpa_printf(MSG_DEBUG, "Data/PS-poll frame from not associated STA "
1698 MACSTR, MAC2STR(src));
1699 if (sta && (sta->flags & WLAN_STA_AUTH))
1700 hapd->drv.sta_disassoc(
1701 hapd, src,
1702 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
1703 else
1704 hapd->drv.sta_deauth(
1705 hapd, src,
1706 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
1707 }
1708
1709
1710 #endif /* CONFIG_NATIVE_WINDOWS */
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