Line data Source code
1 : /*
2 : * hostapd / IEEE 802.11 Management
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 : #ifndef CONFIG_NATIVE_WINDOWS
12 :
13 : #include "utils/common.h"
14 : #include "utils/eloop.h"
15 : #include "crypto/crypto.h"
16 : #include "crypto/sha256.h"
17 : #include "crypto/random.h"
18 : #include "common/ieee802_11_defs.h"
19 : #include "common/ieee802_11_common.h"
20 : #include "common/wpa_ctrl.h"
21 : #include "common/sae.h"
22 : #include "radius/radius.h"
23 : #include "radius/radius_client.h"
24 : #include "p2p/p2p.h"
25 : #include "wps/wps.h"
26 : #include "hostapd.h"
27 : #include "beacon.h"
28 : #include "ieee802_11_auth.h"
29 : #include "sta_info.h"
30 : #include "ieee802_1x.h"
31 : #include "wpa_auth.h"
32 : #include "wmm.h"
33 : #include "ap_list.h"
34 : #include "accounting.h"
35 : #include "ap_config.h"
36 : #include "ap_mlme.h"
37 : #include "p2p_hostapd.h"
38 : #include "ap_drv_ops.h"
39 : #include "wnm_ap.h"
40 : #include "ieee802_11.h"
41 : #include "dfs.h"
42 :
43 :
44 3531 : u8 * hostapd_eid_supp_rates(struct hostapd_data *hapd, u8 *eid)
45 : {
46 3531 : u8 *pos = eid;
47 : int i, num, count;
48 :
49 3531 : if (hapd->iface->current_rates == NULL)
50 3 : return eid;
51 :
52 3528 : *pos++ = WLAN_EID_SUPP_RATES;
53 3528 : num = hapd->iface->num_rates;
54 3528 : if (hapd->iconf->ieee80211n && hapd->iconf->require_ht)
55 18 : num++;
56 3528 : if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht)
57 8 : num++;
58 3528 : if (num > 8) {
59 : /* rest of the rates are encoded in Extended supported
60 : * rates element */
61 3449 : num = 8;
62 : }
63 :
64 3528 : *pos++ = num;
65 35210 : for (i = 0, count = 0; i < hapd->iface->num_rates && count < num;
66 28154 : i++) {
67 28154 : count++;
68 28154 : *pos = hapd->iface->current_rates[i].rate / 5;
69 28154 : if (hapd->iface->current_rates[i].flags & HOSTAPD_RATE_BASIC)
70 14014 : *pos |= 0x80;
71 28154 : pos++;
72 : }
73 :
74 3528 : if (hapd->iconf->ieee80211n && hapd->iconf->require_ht && count < 8) {
75 4 : count++;
76 4 : *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_HT_PHY;
77 : }
78 :
79 3528 : if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht && count < 8) {
80 3 : count++;
81 3 : *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_VHT_PHY;
82 : }
83 :
84 3528 : return pos;
85 : }
86 :
87 :
88 3531 : u8 * hostapd_eid_ext_supp_rates(struct hostapd_data *hapd, u8 *eid)
89 : {
90 3531 : u8 *pos = eid;
91 : int i, num, count;
92 :
93 3531 : if (hapd->iface->current_rates == NULL)
94 3 : return eid;
95 :
96 3528 : num = hapd->iface->num_rates;
97 3528 : if (hapd->iconf->ieee80211n && hapd->iconf->require_ht)
98 18 : num++;
99 3528 : if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht)
100 8 : num++;
101 3528 : if (num <= 8)
102 79 : return eid;
103 3449 : num -= 8;
104 :
105 3449 : *pos++ = WLAN_EID_EXT_SUPP_RATES;
106 3449 : *pos++ = num;
107 48266 : for (i = 0, count = 0; i < hapd->iface->num_rates && count < num + 8;
108 41368 : i++) {
109 41368 : count++;
110 41368 : if (count <= 8)
111 27592 : continue; /* already in SuppRates IE */
112 13776 : *pos = hapd->iface->current_rates[i].rate / 5;
113 13776 : if (hapd->iface->current_rates[i].flags & HOSTAPD_RATE_BASIC)
114 12 : *pos |= 0x80;
115 13776 : pos++;
116 : }
117 :
118 3449 : if (hapd->iconf->ieee80211n && hapd->iconf->require_ht) {
119 14 : count++;
120 14 : if (count > 8)
121 14 : *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_HT_PHY;
122 : }
123 :
124 3449 : if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht) {
125 5 : count++;
126 5 : if (count > 8)
127 5 : *pos++ = 0x80 | BSS_MEMBERSHIP_SELECTOR_VHT_PHY;
128 : }
129 :
130 3449 : return pos;
131 : }
132 :
133 :
134 3531 : u16 hostapd_own_capab_info(struct hostapd_data *hapd, struct sta_info *sta,
135 : int probe)
136 : {
137 3531 : int capab = WLAN_CAPABILITY_ESS;
138 : int privacy;
139 : int dfs;
140 :
141 : /* Check if any of configured channels require DFS */
142 3531 : dfs = hostapd_is_dfs_required(hapd->iface);
143 3531 : if (dfs < 0) {
144 0 : wpa_printf(MSG_WARNING, "Failed to check if DFS is required; ret=%d",
145 : dfs);
146 0 : dfs = 0;
147 : }
148 :
149 7039 : if (hapd->iface->num_sta_no_short_preamble == 0 &&
150 3508 : hapd->iconf->preamble == SHORT_PREAMBLE)
151 3 : capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
152 :
153 3531 : privacy = hapd->conf->ssid.wep.keys_set;
154 :
155 4926 : if (hapd->conf->ieee802_1x &&
156 2784 : (hapd->conf->default_wep_key_len ||
157 1389 : hapd->conf->individual_wep_key_len))
158 6 : privacy = 1;
159 :
160 3531 : if (hapd->conf->wpa)
161 2607 : privacy = 1;
162 :
163 : #ifdef CONFIG_HS20
164 3531 : if (hapd->conf->osen)
165 10 : privacy = 1;
166 : #endif /* CONFIG_HS20 */
167 :
168 3531 : if (sta) {
169 : int policy, def_klen;
170 1506 : if (probe && sta->ssid_probe) {
171 196 : policy = sta->ssid_probe->security_policy;
172 196 : def_klen = sta->ssid_probe->wep.default_len;
173 : } else {
174 1310 : policy = sta->ssid->security_policy;
175 1310 : def_klen = sta->ssid->wep.default_len;
176 : }
177 1506 : privacy = policy != SECURITY_PLAINTEXT;
178 1506 : if (policy == SECURITY_IEEE_802_1X && def_klen == 0)
179 2 : privacy = 0;
180 : }
181 :
182 3531 : if (privacy)
183 2628 : capab |= WLAN_CAPABILITY_PRIVACY;
184 :
185 7062 : if (hapd->iface->current_mode &&
186 6982 : hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G &&
187 3451 : hapd->iface->num_sta_no_short_slot_time == 0)
188 3451 : capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
189 :
190 : /*
191 : * Currently, Spectrum Management capability bit is set when directly
192 : * requested in configuration by spectrum_mgmt_required or when AP is
193 : * running on DFS channel.
194 : * TODO: Also consider driver support for TPC to set Spectrum Mgmt bit
195 : */
196 7062 : if (hapd->iface->current_mode &&
197 3597 : hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211A &&
198 129 : (hapd->iconf->spectrum_mgmt_required || dfs))
199 16 : capab |= WLAN_CAPABILITY_SPECTRUM_MGMT;
200 :
201 3531 : return capab;
202 : }
203 :
204 :
205 4 : static u16 auth_shared_key(struct hostapd_data *hapd, struct sta_info *sta,
206 : u16 auth_transaction, const u8 *challenge,
207 : int iswep)
208 : {
209 4 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
210 : HOSTAPD_LEVEL_DEBUG,
211 : "authentication (shared key, transaction %d)",
212 : auth_transaction);
213 :
214 4 : if (auth_transaction == 1) {
215 2 : if (!sta->challenge) {
216 : /* Generate a pseudo-random challenge */
217 : u8 key[8];
218 : struct os_time now;
219 : int r;
220 2 : sta->challenge = os_zalloc(WLAN_AUTH_CHALLENGE_LEN);
221 2 : if (sta->challenge == NULL)
222 0 : return WLAN_STATUS_UNSPECIFIED_FAILURE;
223 :
224 2 : os_get_time(&now);
225 2 : r = os_random();
226 2 : os_memcpy(key, &now.sec, 4);
227 2 : os_memcpy(key + 4, &r, 4);
228 2 : rc4_skip(key, sizeof(key), 0,
229 : sta->challenge, WLAN_AUTH_CHALLENGE_LEN);
230 : }
231 2 : return 0;
232 : }
233 :
234 2 : if (auth_transaction != 3)
235 0 : return WLAN_STATUS_UNSPECIFIED_FAILURE;
236 :
237 : /* Transaction 3 */
238 4 : if (!iswep || !sta->challenge || !challenge ||
239 2 : os_memcmp_const(sta->challenge, challenge,
240 : WLAN_AUTH_CHALLENGE_LEN)) {
241 0 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
242 : HOSTAPD_LEVEL_INFO,
243 : "shared key authentication - invalid "
244 : "challenge-response");
245 0 : return WLAN_STATUS_CHALLENGE_FAIL;
246 : }
247 :
248 2 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
249 : HOSTAPD_LEVEL_DEBUG,
250 : "authentication OK (shared key)");
251 2 : sta->flags |= WLAN_STA_AUTH;
252 2 : wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH);
253 2 : os_free(sta->challenge);
254 2 : sta->challenge = NULL;
255 :
256 2 : return 0;
257 : }
258 :
259 :
260 1249 : static void send_auth_reply(struct hostapd_data *hapd,
261 : const u8 *dst, const u8 *bssid,
262 : u16 auth_alg, u16 auth_transaction, u16 resp,
263 : const u8 *ies, size_t ies_len)
264 : {
265 : struct ieee80211_mgmt *reply;
266 : u8 *buf;
267 : size_t rlen;
268 :
269 1249 : rlen = IEEE80211_HDRLEN + sizeof(reply->u.auth) + ies_len;
270 1249 : buf = os_zalloc(rlen);
271 1249 : if (buf == NULL)
272 1249 : return;
273 :
274 1249 : reply = (struct ieee80211_mgmt *) buf;
275 1249 : reply->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
276 : WLAN_FC_STYPE_AUTH);
277 1249 : os_memcpy(reply->da, dst, ETH_ALEN);
278 1249 : os_memcpy(reply->sa, hapd->own_addr, ETH_ALEN);
279 1249 : os_memcpy(reply->bssid, bssid, ETH_ALEN);
280 :
281 1249 : reply->u.auth.auth_alg = host_to_le16(auth_alg);
282 1249 : reply->u.auth.auth_transaction = host_to_le16(auth_transaction);
283 1249 : reply->u.auth.status_code = host_to_le16(resp);
284 :
285 1249 : if (ies && ies_len)
286 160 : os_memcpy(reply->u.auth.variable, ies, ies_len);
287 :
288 8743 : wpa_printf(MSG_DEBUG, "authentication reply: STA=" MACSTR
289 : " auth_alg=%d auth_transaction=%d resp=%d (IE len=%lu)",
290 7494 : MAC2STR(dst), auth_alg, auth_transaction,
291 : resp, (unsigned long) ies_len);
292 1249 : if (hostapd_drv_send_mlme(hapd, reply, rlen, 0) < 0)
293 0 : wpa_printf(MSG_INFO, "send_auth_reply: send");
294 :
295 1249 : os_free(buf);
296 : }
297 :
298 :
299 : #ifdef CONFIG_IEEE80211R
300 113 : static void handle_auth_ft_finish(void *ctx, const u8 *dst, const u8 *bssid,
301 : u16 auth_transaction, u16 status,
302 : const u8 *ies, size_t ies_len)
303 : {
304 113 : struct hostapd_data *hapd = ctx;
305 : struct sta_info *sta;
306 :
307 113 : send_auth_reply(hapd, dst, bssid, WLAN_AUTH_FT, auth_transaction,
308 : status, ies, ies_len);
309 :
310 113 : if (status != WLAN_STATUS_SUCCESS)
311 0 : return;
312 :
313 113 : sta = ap_get_sta(hapd, dst);
314 113 : if (sta == NULL)
315 0 : return;
316 :
317 113 : hostapd_logger(hapd, dst, HOSTAPD_MODULE_IEEE80211,
318 : HOSTAPD_LEVEL_DEBUG, "authentication OK (FT)");
319 113 : sta->flags |= WLAN_STA_AUTH;
320 113 : mlme_authenticate_indication(hapd, sta);
321 : }
322 : #endif /* CONFIG_IEEE80211R */
323 :
324 :
325 : #ifdef CONFIG_SAE
326 :
327 20 : static struct wpabuf * auth_process_sae_commit(struct hostapd_data *hapd,
328 : struct sta_info *sta)
329 : {
330 : struct wpabuf *buf;
331 :
332 20 : if (hapd->conf->ssid.wpa_passphrase == NULL) {
333 0 : wpa_printf(MSG_DEBUG, "SAE: No password available");
334 0 : return NULL;
335 : }
336 :
337 60 : if (sae_prepare_commit(hapd->own_addr, sta->addr,
338 20 : (u8 *) hapd->conf->ssid.wpa_passphrase,
339 20 : os_strlen(hapd->conf->ssid.wpa_passphrase),
340 : sta->sae) < 0) {
341 0 : wpa_printf(MSG_DEBUG, "SAE: Could not pick PWE");
342 0 : return NULL;
343 : }
344 :
345 20 : if (sae_process_commit(sta->sae) < 0) {
346 0 : wpa_printf(MSG_DEBUG, "SAE: Failed to process peer commit");
347 0 : return NULL;
348 : }
349 :
350 20 : buf = wpabuf_alloc(SAE_COMMIT_MAX_LEN);
351 20 : if (buf == NULL)
352 0 : return NULL;
353 20 : sae_write_commit(sta->sae, buf, NULL);
354 :
355 20 : return buf;
356 : }
357 :
358 :
359 20 : static struct wpabuf * auth_build_sae_confirm(struct hostapd_data *hapd,
360 : struct sta_info *sta)
361 : {
362 : struct wpabuf *buf;
363 :
364 20 : buf = wpabuf_alloc(SAE_CONFIRM_MAX_LEN);
365 20 : if (buf == NULL)
366 0 : return NULL;
367 :
368 20 : sae_write_confirm(sta->sae, buf);
369 :
370 20 : return buf;
371 : }
372 :
373 :
374 20 : static int use_sae_anti_clogging(struct hostapd_data *hapd)
375 : {
376 : struct sta_info *sta;
377 20 : unsigned int open = 0;
378 :
379 20 : if (hapd->conf->sae_anti_clogging_threshold == 0)
380 4 : return 1;
381 :
382 32 : for (sta = hapd->sta_list; sta; sta = sta->next) {
383 17 : if (!sta->sae)
384 0 : continue;
385 33 : if (sta->sae->state != SAE_COMMITTED &&
386 16 : sta->sae->state != SAE_CONFIRMED)
387 16 : continue;
388 1 : open++;
389 1 : if (open >= hapd->conf->sae_anti_clogging_threshold)
390 1 : return 1;
391 : }
392 :
393 15 : return 0;
394 : }
395 :
396 :
397 5 : static int check_sae_token(struct hostapd_data *hapd, const u8 *addr,
398 : const u8 *token, size_t token_len)
399 : {
400 : u8 mac[SHA256_MAC_LEN];
401 :
402 5 : if (token_len != SHA256_MAC_LEN)
403 0 : return -1;
404 5 : if (hmac_sha256(hapd->sae_token_key, sizeof(hapd->sae_token_key),
405 5 : addr, ETH_ALEN, mac) < 0 ||
406 5 : os_memcmp_const(token, mac, SHA256_MAC_LEN) != 0)
407 0 : return -1;
408 :
409 5 : return 0;
410 : }
411 :
412 :
413 5 : static struct wpabuf * auth_build_token_req(struct hostapd_data *hapd,
414 : const u8 *addr)
415 : {
416 : struct wpabuf *buf;
417 : u8 *token;
418 : struct os_reltime now;
419 :
420 5 : os_get_reltime(&now);
421 7 : if (!os_reltime_initialized(&hapd->last_sae_token_key_update) ||
422 2 : os_reltime_expired(&now, &hapd->last_sae_token_key_update, 60)) {
423 3 : if (random_get_bytes(hapd->sae_token_key,
424 : sizeof(hapd->sae_token_key)) < 0)
425 0 : return NULL;
426 3 : wpa_hexdump(MSG_DEBUG, "SAE: Updated token key",
427 3 : hapd->sae_token_key, sizeof(hapd->sae_token_key));
428 3 : hapd->last_sae_token_key_update = now;
429 : }
430 :
431 5 : buf = wpabuf_alloc(SHA256_MAC_LEN);
432 5 : if (buf == NULL)
433 0 : return NULL;
434 :
435 5 : token = wpabuf_put(buf, SHA256_MAC_LEN);
436 5 : hmac_sha256(hapd->sae_token_key, sizeof(hapd->sae_token_key),
437 : addr, ETH_ALEN, token);
438 :
439 5 : return buf;
440 : }
441 :
442 :
443 48 : static void handle_auth_sae(struct hostapd_data *hapd, struct sta_info *sta,
444 : const struct ieee80211_mgmt *mgmt, size_t len,
445 : u8 auth_transaction)
446 : {
447 48 : u16 resp = WLAN_STATUS_SUCCESS;
448 48 : struct wpabuf *data = NULL;
449 :
450 48 : if (!sta->sae) {
451 20 : if (auth_transaction != 1)
452 0 : return;
453 20 : sta->sae = os_zalloc(sizeof(*sta->sae));
454 20 : if (sta->sae == NULL)
455 0 : return;
456 20 : sta->sae->state = SAE_NOTHING;
457 : }
458 :
459 48 : if (auth_transaction == 1) {
460 28 : const u8 *token = NULL;
461 28 : size_t token_len = 0;
462 28 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
463 : HOSTAPD_LEVEL_DEBUG,
464 : "start SAE authentication (RX commit)");
465 56 : resp = sae_parse_commit(sta->sae, mgmt->u.auth.variable,
466 28 : ((const u8 *) mgmt) + len -
467 : mgmt->u.auth.variable, &token,
468 28 : &token_len, hapd->conf->sae_groups);
469 28 : if (token && check_sae_token(hapd, sta->addr, token, token_len)
470 : < 0) {
471 0 : wpa_printf(MSG_DEBUG, "SAE: Drop commit message with "
472 : "incorrect token from " MACSTR,
473 0 : MAC2STR(sta->addr));
474 0 : return;
475 : }
476 :
477 28 : if (resp == WLAN_STATUS_SUCCESS) {
478 25 : if (!token && use_sae_anti_clogging(hapd)) {
479 30 : wpa_printf(MSG_DEBUG, "SAE: Request anti-"
480 : "clogging token from " MACSTR,
481 30 : MAC2STR(sta->addr));
482 5 : data = auth_build_token_req(hapd, sta->addr);
483 5 : resp = WLAN_STATUS_ANTI_CLOGGING_TOKEN_REQ;
484 : } else {
485 20 : data = auth_process_sae_commit(hapd, sta);
486 20 : if (data == NULL)
487 0 : resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
488 : else
489 20 : sta->sae->state = SAE_COMMITTED;
490 : }
491 : }
492 20 : } else if (auth_transaction == 2) {
493 20 : if (sta->sae->state != SAE_COMMITTED) {
494 0 : hostapd_logger(hapd, sta->addr,
495 : HOSTAPD_MODULE_IEEE80211,
496 : HOSTAPD_LEVEL_DEBUG,
497 : "SAE confirm before commit");
498 0 : resp = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION;
499 0 : goto failed;
500 : }
501 20 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
502 : HOSTAPD_LEVEL_DEBUG,
503 : "SAE authentication (RX confirm)");
504 20 : if (sae_check_confirm(sta->sae, mgmt->u.auth.variable,
505 20 : ((u8 *) mgmt) + len -
506 : mgmt->u.auth.variable) < 0) {
507 0 : resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
508 : } else {
509 20 : resp = WLAN_STATUS_SUCCESS;
510 20 : sta->flags |= WLAN_STA_AUTH;
511 20 : wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH);
512 20 : sta->auth_alg = WLAN_AUTH_SAE;
513 20 : mlme_authenticate_indication(hapd, sta);
514 :
515 20 : data = auth_build_sae_confirm(hapd, sta);
516 20 : if (data == NULL)
517 0 : resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
518 : else {
519 20 : sta->sae->state = SAE_ACCEPTED;
520 20 : sae_clear_temp_data(sta->sae);
521 : }
522 : }
523 : } else {
524 0 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
525 : HOSTAPD_LEVEL_DEBUG,
526 : "unexpected SAE authentication transaction %u",
527 : auth_transaction);
528 0 : resp = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION;
529 : }
530 :
531 : failed:
532 48 : sta->auth_alg = WLAN_AUTH_SAE;
533 :
534 48 : send_auth_reply(hapd, mgmt->sa, mgmt->bssid, WLAN_AUTH_SAE,
535 : auth_transaction, resp,
536 : data ? wpabuf_head(data) : (u8 *) "",
537 : data ? wpabuf_len(data) : 0);
538 48 : wpabuf_free(data);
539 : }
540 : #endif /* CONFIG_SAE */
541 :
542 :
543 1254 : static void handle_auth(struct hostapd_data *hapd,
544 : const struct ieee80211_mgmt *mgmt, size_t len)
545 : {
546 : u16 auth_alg, auth_transaction, status_code;
547 1254 : u16 resp = WLAN_STATUS_SUCCESS;
548 1254 : struct sta_info *sta = NULL;
549 : int res;
550 : u16 fc;
551 1254 : const u8 *challenge = NULL;
552 : u32 session_timeout, acct_interim_interval;
553 1254 : int vlan_id = 0;
554 1254 : struct hostapd_sta_wpa_psk_short *psk = NULL;
555 : u8 resp_ies[2 + WLAN_AUTH_CHALLENGE_LEN];
556 1254 : size_t resp_ies_len = 0;
557 1254 : char *identity = NULL;
558 1254 : char *radius_cui = NULL;
559 :
560 1254 : if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.auth)) {
561 0 : wpa_printf(MSG_INFO, "handle_auth - too short payload (len=%lu)",
562 : (unsigned long) len);
563 0 : return;
564 : }
565 :
566 : #ifdef CONFIG_TESTING_OPTIONS
567 1261 : if (hapd->iconf->ignore_auth_probability > 0.0 &&
568 7 : drand48() < hapd->iconf->ignore_auth_probability) {
569 24 : wpa_printf(MSG_INFO,
570 : "TESTING: ignoring auth frame from " MACSTR,
571 24 : MAC2STR(mgmt->sa));
572 4 : return;
573 : }
574 : #endif /* CONFIG_TESTING_OPTIONS */
575 :
576 1250 : auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
577 1250 : auth_transaction = le_to_host16(mgmt->u.auth.auth_transaction);
578 1250 : status_code = le_to_host16(mgmt->u.auth.status_code);
579 1250 : fc = le_to_host16(mgmt->frame_control);
580 :
581 1250 : if (len >= IEEE80211_HDRLEN + sizeof(mgmt->u.auth) +
582 128 : 2 + WLAN_AUTH_CHALLENGE_LEN &&
583 130 : mgmt->u.auth.variable[0] == WLAN_EID_CHALLENGE &&
584 2 : mgmt->u.auth.variable[1] == WLAN_AUTH_CHALLENGE_LEN)
585 2 : challenge = &mgmt->u.auth.variable[2];
586 :
587 10000 : wpa_printf(MSG_DEBUG, "authentication: STA=" MACSTR " auth_alg=%d "
588 : "auth_transaction=%d status_code=%d wep=%d%s",
589 7500 : MAC2STR(mgmt->sa), auth_alg, auth_transaction,
590 1250 : status_code, !!(fc & WLAN_FC_ISWEP),
591 : challenge ? " challenge" : "");
592 :
593 1250 : if (hapd->tkip_countermeasures) {
594 2 : resp = WLAN_REASON_MICHAEL_MIC_FAILURE;
595 2 : goto fail;
596 : }
597 :
598 1257 : if (!(((hapd->conf->auth_algs & WPA_AUTH_ALG_OPEN) &&
599 170 : auth_alg == WLAN_AUTH_OPEN) ||
600 : #ifdef CONFIG_IEEE80211R
601 331 : (hapd->conf->wpa && wpa_key_mgmt_ft(hapd->conf->wpa_key_mgmt) &&
602 57 : auth_alg == WLAN_AUTH_FT) ||
603 : #endif /* CONFIG_IEEE80211R */
604 : #ifdef CONFIG_SAE
605 105 : (hapd->conf->wpa && wpa_key_mgmt_sae(hapd->conf->wpa_key_mgmt) &&
606 : auth_alg == WLAN_AUTH_SAE) ||
607 : #endif /* CONFIG_SAE */
608 14 : ((hapd->conf->auth_algs & WPA_AUTH_ALG_SHARED) &&
609 : auth_alg == WLAN_AUTH_SHARED_KEY))) {
610 5 : wpa_printf(MSG_INFO, "Unsupported authentication algorithm (%d)",
611 : auth_alg);
612 5 : resp = WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG;
613 5 : goto fail;
614 : }
615 :
616 1243 : if (!(auth_transaction == 1 || auth_alg == WLAN_AUTH_SAE ||
617 2 : (auth_alg == WLAN_AUTH_SHARED_KEY && auth_transaction == 3))) {
618 0 : wpa_printf(MSG_INFO, "Unknown authentication transaction number (%d)",
619 : auth_transaction);
620 0 : resp = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION;
621 0 : goto fail;
622 : }
623 :
624 1243 : if (os_memcmp(mgmt->sa, hapd->own_addr, ETH_ALEN) == 0) {
625 0 : wpa_printf(MSG_INFO, "Station " MACSTR " not allowed to authenticate",
626 0 : MAC2STR(mgmt->sa));
627 0 : resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
628 0 : goto fail;
629 : }
630 :
631 1243 : res = hostapd_allowed_address(hapd, mgmt->sa, (u8 *) mgmt, len,
632 : &session_timeout,
633 : &acct_interim_interval, &vlan_id,
634 : &psk, &identity, &radius_cui);
635 :
636 1243 : if (res == HOSTAPD_ACL_REJECT) {
637 54 : wpa_printf(MSG_INFO, "Station " MACSTR " not allowed to authenticate",
638 54 : MAC2STR(mgmt->sa));
639 9 : resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
640 9 : goto fail;
641 : }
642 1234 : if (res == HOSTAPD_ACL_PENDING) {
643 6 : wpa_printf(MSG_DEBUG, "Authentication frame from " MACSTR
644 : " waiting for an external authentication",
645 6 : MAC2STR(mgmt->sa));
646 : /* Authentication code will re-send the authentication frame
647 : * after it has received (and cached) information from the
648 : * external source. */
649 1 : return;
650 : }
651 :
652 1233 : sta = ap_sta_add(hapd, mgmt->sa);
653 1233 : if (!sta) {
654 3 : resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA;
655 3 : goto fail;
656 : }
657 :
658 1230 : if (vlan_id > 0) {
659 8 : if (!hostapd_vlan_id_valid(hapd->conf->vlan, vlan_id)) {
660 0 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS,
661 : HOSTAPD_LEVEL_INFO, "Invalid VLAN ID "
662 : "%d received from RADIUS server",
663 : vlan_id);
664 0 : resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
665 0 : goto fail;
666 : }
667 8 : sta->vlan_id = vlan_id;
668 8 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS,
669 : HOSTAPD_LEVEL_INFO, "VLAN ID %d", sta->vlan_id);
670 : }
671 :
672 1230 : hostapd_free_psk_list(sta->psk);
673 1230 : if (hapd->conf->wpa_psk_radius != PSK_RADIUS_IGNORED) {
674 0 : sta->psk = psk;
675 0 : psk = NULL;
676 : } else {
677 1230 : sta->psk = NULL;
678 : }
679 :
680 1230 : sta->identity = identity;
681 1230 : identity = NULL;
682 1230 : sta->radius_cui = radius_cui;
683 1230 : radius_cui = NULL;
684 :
685 1230 : sta->flags &= ~WLAN_STA_PREAUTH;
686 1230 : ieee802_1x_notify_pre_auth(sta->eapol_sm, 0);
687 :
688 1230 : if (hapd->conf->acct_interim_interval == 0 && acct_interim_interval)
689 0 : sta->acct_interim_interval = acct_interim_interval;
690 1230 : if (res == HOSTAPD_ACL_ACCEPT_TIMEOUT)
691 0 : ap_sta_session_timeout(hapd, sta, session_timeout);
692 : else
693 1230 : ap_sta_no_session_timeout(hapd, sta);
694 :
695 1230 : switch (auth_alg) {
696 : case WLAN_AUTH_OPEN:
697 1065 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
698 : HOSTAPD_LEVEL_DEBUG,
699 : "authentication OK (open system)");
700 1065 : sta->flags |= WLAN_STA_AUTH;
701 1065 : wpa_auth_sm_event(sta->wpa_sm, WPA_AUTH);
702 1065 : sta->auth_alg = WLAN_AUTH_OPEN;
703 1065 : mlme_authenticate_indication(hapd, sta);
704 1065 : break;
705 : case WLAN_AUTH_SHARED_KEY:
706 4 : resp = auth_shared_key(hapd, sta, auth_transaction, challenge,
707 : fc & WLAN_FC_ISWEP);
708 4 : sta->auth_alg = WLAN_AUTH_SHARED_KEY;
709 4 : mlme_authenticate_indication(hapd, sta);
710 4 : if (sta->challenge && auth_transaction == 1) {
711 2 : resp_ies[0] = WLAN_EID_CHALLENGE;
712 2 : resp_ies[1] = WLAN_AUTH_CHALLENGE_LEN;
713 2 : os_memcpy(resp_ies + 2, sta->challenge,
714 : WLAN_AUTH_CHALLENGE_LEN);
715 2 : resp_ies_len = 2 + WLAN_AUTH_CHALLENGE_LEN;
716 : }
717 4 : break;
718 : #ifdef CONFIG_IEEE80211R
719 : case WLAN_AUTH_FT:
720 113 : sta->auth_alg = WLAN_AUTH_FT;
721 113 : if (sta->wpa_sm == NULL)
722 8 : sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
723 8 : sta->addr, NULL);
724 113 : if (sta->wpa_sm == NULL) {
725 0 : wpa_printf(MSG_DEBUG, "FT: Failed to initialize WPA "
726 : "state machine");
727 0 : resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
728 0 : goto fail;
729 : }
730 226 : wpa_ft_process_auth(sta->wpa_sm, mgmt->bssid,
731 113 : auth_transaction, mgmt->u.auth.variable,
732 : len - IEEE80211_HDRLEN -
733 : sizeof(mgmt->u.auth),
734 : handle_auth_ft_finish, hapd);
735 : /* handle_auth_ft_finish() callback will complete auth. */
736 113 : return;
737 : #endif /* CONFIG_IEEE80211R */
738 : #ifdef CONFIG_SAE
739 : case WLAN_AUTH_SAE:
740 48 : handle_auth_sae(hapd, sta, mgmt, len, auth_transaction);
741 48 : return;
742 : #endif /* CONFIG_SAE */
743 : }
744 :
745 : fail:
746 1088 : os_free(identity);
747 1088 : os_free(radius_cui);
748 1088 : hostapd_free_psk_list(psk);
749 :
750 1088 : send_auth_reply(hapd, mgmt->sa, mgmt->bssid, auth_alg,
751 : auth_transaction + 1, resp, resp_ies, resp_ies_len);
752 : }
753 :
754 :
755 1299 : static int hostapd_get_aid(struct hostapd_data *hapd, struct sta_info *sta)
756 : {
757 1299 : int i, j = 32, aid;
758 :
759 : /* get a unique AID */
760 1299 : if (sta->aid > 0) {
761 262 : wpa_printf(MSG_DEBUG, " old AID %d", sta->aid);
762 262 : return 0;
763 : }
764 :
765 1037 : for (i = 0; i < AID_WORDS; i++) {
766 1037 : if (hapd->sta_aid[i] == (u32) -1)
767 0 : continue;
768 1222 : for (j = 0; j < 32; j++) {
769 1222 : if (!(hapd->sta_aid[i] & BIT(j)))
770 1037 : break;
771 : }
772 1037 : if (j < 32)
773 1037 : break;
774 : }
775 1037 : if (j == 32)
776 0 : return -1;
777 1037 : aid = i * 32 + j + 1;
778 1037 : if (aid > 2007)
779 0 : return -1;
780 :
781 1037 : sta->aid = aid;
782 1037 : hapd->sta_aid[i] |= BIT(j);
783 1037 : wpa_printf(MSG_DEBUG, " new AID %d", sta->aid);
784 1037 : return 0;
785 : }
786 :
787 :
788 1309 : static u16 check_ssid(struct hostapd_data *hapd, struct sta_info *sta,
789 : const u8 *ssid_ie, size_t ssid_ie_len)
790 : {
791 1309 : if (ssid_ie == NULL)
792 0 : return WLAN_STATUS_UNSPECIFIED_FAILURE;
793 :
794 2618 : if (ssid_ie_len != hapd->conf->ssid.ssid_len ||
795 1309 : os_memcmp(ssid_ie, hapd->conf->ssid.ssid, ssid_ie_len) != 0) {
796 0 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
797 : HOSTAPD_LEVEL_INFO,
798 : "Station tried to associate with unknown SSID "
799 : "'%s'", wpa_ssid_txt(ssid_ie, ssid_ie_len));
800 0 : return WLAN_STATUS_UNSPECIFIED_FAILURE;
801 : }
802 :
803 1309 : return WLAN_STATUS_SUCCESS;
804 : }
805 :
806 :
807 1309 : static u16 check_wmm(struct hostapd_data *hapd, struct sta_info *sta,
808 : const u8 *wmm_ie, size_t wmm_ie_len)
809 : {
810 1309 : sta->flags &= ~WLAN_STA_WMM;
811 1309 : sta->qosinfo = 0;
812 1309 : if (wmm_ie && hapd->conf->wmm_enabled) {
813 : struct wmm_information_element *wmm;
814 :
815 1305 : if (!hostapd_eid_wmm_valid(hapd, wmm_ie, wmm_ie_len)) {
816 0 : hostapd_logger(hapd, sta->addr,
817 : HOSTAPD_MODULE_WPA,
818 : HOSTAPD_LEVEL_DEBUG,
819 : "invalid WMM element in association "
820 : "request");
821 0 : return WLAN_STATUS_UNSPECIFIED_FAILURE;
822 : }
823 :
824 1305 : sta->flags |= WLAN_STA_WMM;
825 1305 : wmm = (struct wmm_information_element *) wmm_ie;
826 1305 : sta->qosinfo = wmm->qos_info;
827 : }
828 1309 : return WLAN_STATUS_SUCCESS;
829 : }
830 :
831 :
832 1309 : static u16 copy_supp_rates(struct hostapd_data *hapd, struct sta_info *sta,
833 : struct ieee802_11_elems *elems)
834 : {
835 1309 : if (!elems->supp_rates) {
836 0 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
837 : HOSTAPD_LEVEL_DEBUG,
838 : "No supported rates element in AssocReq");
839 0 : return WLAN_STATUS_UNSPECIFIED_FAILURE;
840 : }
841 :
842 1309 : if (elems->supp_rates_len + elems->ext_supp_rates_len >
843 : sizeof(sta->supported_rates)) {
844 0 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
845 : HOSTAPD_LEVEL_DEBUG,
846 : "Invalid supported rates element length %d+%d",
847 0 : elems->supp_rates_len,
848 0 : elems->ext_supp_rates_len);
849 0 : return WLAN_STATUS_UNSPECIFIED_FAILURE;
850 : }
851 :
852 3927 : sta->supported_rates_len = merge_byte_arrays(
853 1309 : sta->supported_rates, sizeof(sta->supported_rates),
854 1309 : elems->supp_rates, elems->supp_rates_len,
855 1309 : elems->ext_supp_rates, elems->ext_supp_rates_len);
856 :
857 1309 : return WLAN_STATUS_SUCCESS;
858 : }
859 :
860 :
861 1309 : static u16 check_ext_capab(struct hostapd_data *hapd, struct sta_info *sta,
862 : const u8 *ext_capab_ie, size_t ext_capab_ie_len)
863 : {
864 : #ifdef CONFIG_INTERWORKING
865 : /* check for QoS Map support */
866 1309 : if (ext_capab_ie_len >= 5) {
867 1083 : if (ext_capab_ie[4] & 0x01)
868 1083 : sta->qos_map_enabled = 1;
869 : }
870 : #endif /* CONFIG_INTERWORKING */
871 :
872 1309 : return WLAN_STATUS_SUCCESS;
873 : }
874 :
875 :
876 1309 : static u16 check_assoc_ies(struct hostapd_data *hapd, struct sta_info *sta,
877 : const u8 *ies, size_t ies_len, int reassoc)
878 : {
879 : struct ieee802_11_elems elems;
880 : u16 resp;
881 : const u8 *wpa_ie;
882 : size_t wpa_ie_len;
883 1309 : const u8 *p2p_dev_addr = NULL;
884 :
885 1309 : if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) {
886 0 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
887 : HOSTAPD_LEVEL_INFO, "Station sent an invalid "
888 : "association request");
889 0 : return WLAN_STATUS_UNSPECIFIED_FAILURE;
890 : }
891 :
892 1309 : resp = check_ssid(hapd, sta, elems.ssid, elems.ssid_len);
893 1309 : if (resp != WLAN_STATUS_SUCCESS)
894 0 : return resp;
895 1309 : resp = check_wmm(hapd, sta, elems.wmm, elems.wmm_len);
896 1309 : if (resp != WLAN_STATUS_SUCCESS)
897 0 : return resp;
898 1309 : resp = check_ext_capab(hapd, sta, elems.ext_capab, elems.ext_capab_len);
899 1309 : if (resp != WLAN_STATUS_SUCCESS)
900 0 : return resp;
901 1309 : resp = copy_supp_rates(hapd, sta, &elems);
902 1309 : if (resp != WLAN_STATUS_SUCCESS)
903 0 : return resp;
904 : #ifdef CONFIG_IEEE80211N
905 1309 : resp = copy_sta_ht_capab(hapd, sta, elems.ht_capabilities,
906 1309 : elems.ht_capabilities_len);
907 1309 : if (resp != WLAN_STATUS_SUCCESS)
908 0 : return resp;
909 1317 : if (hapd->iconf->ieee80211n && hapd->iconf->require_ht &&
910 8 : !(sta->flags & WLAN_STA_HT)) {
911 5 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
912 : HOSTAPD_LEVEL_INFO, "Station does not support "
913 : "mandatory HT PHY - reject association");
914 5 : return WLAN_STATUS_ASSOC_DENIED_NO_HT;
915 : }
916 : #endif /* CONFIG_IEEE80211N */
917 :
918 : #ifdef CONFIG_IEEE80211AC
919 1304 : resp = copy_sta_vht_capab(hapd, sta, elems.vht_capabilities,
920 1304 : elems.vht_capabilities_len);
921 1304 : if (resp != WLAN_STATUS_SUCCESS)
922 0 : return resp;
923 :
924 1304 : resp = set_sta_vht_opmode(hapd, sta, elems.vht_opmode_notif);
925 1304 : if (resp != WLAN_STATUS_SUCCESS)
926 0 : return resp;
927 :
928 1307 : if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht &&
929 3 : !(sta->flags & WLAN_STA_VHT)) {
930 1 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
931 : HOSTAPD_LEVEL_INFO, "Station does not support "
932 : "mandatory VHT PHY - reject association");
933 1 : return WLAN_STATUS_ASSOC_DENIED_NO_VHT;
934 : }
935 : #endif /* CONFIG_IEEE80211AC */
936 :
937 : #ifdef CONFIG_P2P
938 : if (elems.p2p) {
939 : wpabuf_free(sta->p2p_ie);
940 : sta->p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len,
941 : P2P_IE_VENDOR_TYPE);
942 : if (sta->p2p_ie)
943 : p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie);
944 : } else {
945 : wpabuf_free(sta->p2p_ie);
946 : sta->p2p_ie = NULL;
947 : }
948 : #endif /* CONFIG_P2P */
949 :
950 1303 : if ((hapd->conf->wpa & WPA_PROTO_RSN) && elems.rsn_ie) {
951 1009 : wpa_ie = elems.rsn_ie;
952 1009 : wpa_ie_len = elems.rsn_ie_len;
953 310 : } else if ((hapd->conf->wpa & WPA_PROTO_WPA) &&
954 16 : elems.wpa_ie) {
955 13 : wpa_ie = elems.wpa_ie;
956 13 : wpa_ie_len = elems.wpa_ie_len;
957 : } else {
958 281 : wpa_ie = NULL;
959 281 : wpa_ie_len = 0;
960 : }
961 :
962 : #ifdef CONFIG_WPS
963 1303 : sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2);
964 1303 : if (hapd->conf->wps_state && elems.wps_ie) {
965 86 : wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)Association "
966 : "Request - assume WPS is used");
967 86 : sta->flags |= WLAN_STA_WPS;
968 86 : wpabuf_free(sta->wps_ie);
969 86 : sta->wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len,
970 : WPS_IE_VENDOR_TYPE);
971 86 : if (sta->wps_ie && wps_is_20(sta->wps_ie)) {
972 84 : wpa_printf(MSG_DEBUG, "WPS: STA supports WPS 2.0");
973 84 : sta->flags |= WLAN_STA_WPS2;
974 : }
975 86 : wpa_ie = NULL;
976 86 : wpa_ie_len = 0;
977 172 : if (sta->wps_ie && wps_validate_assoc_req(sta->wps_ie) < 0) {
978 0 : wpa_printf(MSG_DEBUG, "WPS: Invalid WPS IE in "
979 : "(Re)Association Request - reject");
980 0 : return WLAN_STATUS_INVALID_IE;
981 : }
982 1217 : } else if (hapd->conf->wps_state && wpa_ie == NULL) {
983 1 : wpa_printf(MSG_DEBUG, "STA did not include WPA/RSN IE in "
984 : "(Re)Association Request - possible WPS use");
985 1 : sta->flags |= WLAN_STA_MAYBE_WPS;
986 : } else
987 : #endif /* CONFIG_WPS */
988 1216 : if (hapd->conf->wpa && wpa_ie == NULL) {
989 0 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
990 : HOSTAPD_LEVEL_INFO,
991 : "No WPA/RSN IE in association request");
992 0 : return WLAN_STATUS_INVALID_IE;
993 : }
994 :
995 2323 : if (hapd->conf->wpa && wpa_ie) {
996 : int res;
997 1022 : wpa_ie -= 2;
998 1022 : wpa_ie_len += 2;
999 1022 : if (sta->wpa_sm == NULL)
1000 749 : sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
1001 749 : sta->addr,
1002 : p2p_dev_addr);
1003 1022 : if (sta->wpa_sm == NULL) {
1004 0 : wpa_printf(MSG_WARNING, "Failed to initialize WPA "
1005 : "state machine");
1006 0 : return WLAN_STATUS_UNSPECIFIED_FAILURE;
1007 : }
1008 1022 : res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
1009 : wpa_ie, wpa_ie_len,
1010 1022 : elems.mdie, elems.mdie_len);
1011 1022 : if (res == WPA_INVALID_GROUP)
1012 0 : resp = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
1013 1022 : else if (res == WPA_INVALID_PAIRWISE)
1014 0 : resp = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID;
1015 1022 : else if (res == WPA_INVALID_AKMP)
1016 0 : resp = WLAN_STATUS_AKMP_NOT_VALID;
1017 1022 : else if (res == WPA_ALLOC_FAIL)
1018 0 : resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
1019 : #ifdef CONFIG_IEEE80211W
1020 1022 : else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION)
1021 0 : resp = WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION;
1022 1022 : else if (res == WPA_INVALID_MGMT_GROUP_CIPHER)
1023 0 : resp = WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION;
1024 : #endif /* CONFIG_IEEE80211W */
1025 1022 : else if (res == WPA_INVALID_MDIE)
1026 0 : resp = WLAN_STATUS_INVALID_MDIE;
1027 1022 : else if (res != WPA_IE_OK)
1028 0 : resp = WLAN_STATUS_INVALID_IE;
1029 1022 : if (resp != WLAN_STATUS_SUCCESS)
1030 0 : return resp;
1031 : #ifdef CONFIG_IEEE80211W
1032 1026 : if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
1033 4 : sta->sa_query_count > 0)
1034 0 : ap_check_sa_query_timeout(hapd, sta);
1035 1022 : if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
1036 3 : (!reassoc || sta->auth_alg != WLAN_AUTH_FT)) {
1037 : /*
1038 : * STA has already been associated with MFP and SA
1039 : * Query timeout has not been reached. Reject the
1040 : * association attempt temporarily and start SA Query,
1041 : * if one is not pending.
1042 : */
1043 :
1044 2 : if (sta->sa_query_count == 0)
1045 2 : ap_sta_start_sa_query(hapd, sta);
1046 :
1047 2 : return WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY;
1048 : }
1049 :
1050 1020 : if (wpa_auth_uses_mfp(sta->wpa_sm))
1051 31 : sta->flags |= WLAN_STA_MFP;
1052 : else
1053 989 : sta->flags &= ~WLAN_STA_MFP;
1054 : #endif /* CONFIG_IEEE80211W */
1055 :
1056 : #ifdef CONFIG_IEEE80211R
1057 1020 : if (sta->auth_alg == WLAN_AUTH_FT) {
1058 221 : if (!reassoc) {
1059 0 : wpa_printf(MSG_DEBUG, "FT: " MACSTR " tried "
1060 : "to use association (not "
1061 : "re-association) with FT auth_alg",
1062 0 : MAC2STR(sta->addr));
1063 0 : return WLAN_STATUS_UNSPECIFIED_FAILURE;
1064 : }
1065 :
1066 221 : resp = wpa_ft_validate_reassoc(sta->wpa_sm, ies,
1067 : ies_len);
1068 221 : if (resp != WLAN_STATUS_SUCCESS)
1069 0 : return resp;
1070 : }
1071 : #endif /* CONFIG_IEEE80211R */
1072 :
1073 : #ifdef CONFIG_SAE
1074 1044 : if (wpa_auth_uses_sae(sta->wpa_sm) &&
1075 28 : sta->auth_alg != WLAN_AUTH_SAE &&
1076 8 : !(sta->auth_alg == WLAN_AUTH_FT &&
1077 4 : wpa_auth_uses_ft_sae(sta->wpa_sm))) {
1078 0 : wpa_printf(MSG_DEBUG, "SAE: " MACSTR " tried to use "
1079 : "SAE AKM after non-SAE auth_alg %u",
1080 0 : MAC2STR(sta->addr), sta->auth_alg);
1081 0 : return WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG;
1082 : }
1083 : #endif /* CONFIG_SAE */
1084 :
1085 : #ifdef CONFIG_IEEE80211N
1086 2024 : if ((sta->flags & (WLAN_STA_HT | WLAN_STA_VHT)) &&
1087 1004 : wpa_auth_get_pairwise(sta->wpa_sm) == WPA_CIPHER_TKIP) {
1088 0 : hostapd_logger(hapd, sta->addr,
1089 : HOSTAPD_MODULE_IEEE80211,
1090 : HOSTAPD_LEVEL_INFO,
1091 : "Station tried to use TKIP with HT "
1092 : "association");
1093 0 : return WLAN_STATUS_CIPHER_REJECTED_PER_POLICY;
1094 : }
1095 : #endif /* CONFIG_IEEE80211N */
1096 : #ifdef CONFIG_HS20
1097 281 : } else if (hapd->conf->osen) {
1098 4 : if (elems.osen == NULL) {
1099 2 : hostapd_logger(
1100 2 : hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1101 : HOSTAPD_LEVEL_INFO,
1102 : "No HS 2.0 OSEN element in association request");
1103 2 : return WLAN_STATUS_INVALID_IE;
1104 : }
1105 :
1106 2 : wpa_printf(MSG_DEBUG, "HS 2.0: OSEN association");
1107 2 : if (sta->wpa_sm == NULL)
1108 2 : sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
1109 2 : sta->addr, NULL);
1110 2 : if (sta->wpa_sm == NULL) {
1111 0 : wpa_printf(MSG_WARNING, "Failed to initialize WPA "
1112 : "state machine");
1113 0 : return WLAN_STATUS_UNSPECIFIED_FAILURE;
1114 : }
1115 4 : if (wpa_validate_osen(hapd->wpa_auth, sta->wpa_sm,
1116 4 : elems.osen - 2, elems.osen_len + 2) < 0)
1117 0 : return WLAN_STATUS_INVALID_IE;
1118 : #endif /* CONFIG_HS20 */
1119 : } else
1120 277 : wpa_auth_sta_no_wpa(sta->wpa_sm);
1121 :
1122 : #ifdef CONFIG_P2P
1123 : p2p_group_notif_assoc(hapd->p2p_group, sta->addr, ies, ies_len);
1124 : #endif /* CONFIG_P2P */
1125 :
1126 : #ifdef CONFIG_HS20
1127 1299 : wpabuf_free(sta->hs20_ie);
1128 1299 : if (elems.hs20 && elems.hs20_len > 4) {
1129 81 : sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4,
1130 81 : elems.hs20_len - 4);
1131 : } else
1132 1218 : sta->hs20_ie = NULL;
1133 : #endif /* CONFIG_HS20 */
1134 :
1135 1299 : return WLAN_STATUS_SUCCESS;
1136 : }
1137 :
1138 :
1139 0 : static void send_deauth(struct hostapd_data *hapd, const u8 *addr,
1140 : u16 reason_code)
1141 : {
1142 : int send_len;
1143 : struct ieee80211_mgmt reply;
1144 :
1145 0 : os_memset(&reply, 0, sizeof(reply));
1146 0 : reply.frame_control =
1147 : IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_DEAUTH);
1148 0 : os_memcpy(reply.da, addr, ETH_ALEN);
1149 0 : os_memcpy(reply.sa, hapd->own_addr, ETH_ALEN);
1150 0 : os_memcpy(reply.bssid, hapd->own_addr, ETH_ALEN);
1151 :
1152 0 : send_len = IEEE80211_HDRLEN + sizeof(reply.u.deauth);
1153 0 : reply.u.deauth.reason_code = host_to_le16(reason_code);
1154 :
1155 0 : if (hostapd_drv_send_mlme(hapd, &reply, send_len, 0) < 0)
1156 0 : wpa_printf(MSG_INFO, "Failed to send deauth: %s",
1157 0 : strerror(errno));
1158 0 : }
1159 :
1160 :
1161 1310 : static void send_assoc_resp(struct hostapd_data *hapd, struct sta_info *sta,
1162 : u16 status_code, int reassoc, const u8 *ies,
1163 : size_t ies_len)
1164 : {
1165 : int send_len;
1166 : u8 buf[sizeof(struct ieee80211_mgmt) + 1024];
1167 : struct ieee80211_mgmt *reply;
1168 : u8 *p;
1169 :
1170 1310 : os_memset(buf, 0, sizeof(buf));
1171 1310 : reply = (struct ieee80211_mgmt *) buf;
1172 1310 : reply->frame_control =
1173 1310 : IEEE80211_FC(WLAN_FC_TYPE_MGMT,
1174 : (reassoc ? WLAN_FC_STYPE_REASSOC_RESP :
1175 : WLAN_FC_STYPE_ASSOC_RESP));
1176 1310 : os_memcpy(reply->da, sta->addr, ETH_ALEN);
1177 1310 : os_memcpy(reply->sa, hapd->own_addr, ETH_ALEN);
1178 1310 : os_memcpy(reply->bssid, hapd->own_addr, ETH_ALEN);
1179 :
1180 1310 : send_len = IEEE80211_HDRLEN;
1181 1310 : send_len += sizeof(reply->u.assoc_resp);
1182 1310 : reply->u.assoc_resp.capab_info =
1183 1310 : host_to_le16(hostapd_own_capab_info(hapd, sta, 0));
1184 1310 : reply->u.assoc_resp.status_code = host_to_le16(status_code);
1185 1310 : reply->u.assoc_resp.aid = host_to_le16(sta->aid | BIT(14) | BIT(15));
1186 : /* Supported rates */
1187 1310 : p = hostapd_eid_supp_rates(hapd, reply->u.assoc_resp.variable);
1188 : /* Extended supported rates */
1189 1310 : p = hostapd_eid_ext_supp_rates(hapd, p);
1190 :
1191 : #ifdef CONFIG_IEEE80211R
1192 1310 : if (status_code == WLAN_STATUS_SUCCESS) {
1193 : /* IEEE 802.11r: Mobility Domain Information, Fast BSS
1194 : * Transition Information, RSN, [RIC Response] */
1195 2598 : p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, p,
1196 1299 : buf + sizeof(buf) - p,
1197 1299 : sta->auth_alg, ies, ies_len);
1198 : }
1199 : #endif /* CONFIG_IEEE80211R */
1200 :
1201 : #ifdef CONFIG_IEEE80211W
1202 1310 : if (status_code == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY)
1203 2 : p = hostapd_eid_assoc_comeback_time(hapd, sta, p);
1204 : #endif /* CONFIG_IEEE80211W */
1205 :
1206 : #ifdef CONFIG_IEEE80211N
1207 1310 : p = hostapd_eid_ht_capabilities(hapd, p);
1208 1310 : p = hostapd_eid_ht_operation(hapd, p);
1209 : #endif /* CONFIG_IEEE80211N */
1210 :
1211 : #ifdef CONFIG_IEEE80211AC
1212 1310 : p = hostapd_eid_vht_capabilities(hapd, p);
1213 1310 : p = hostapd_eid_vht_operation(hapd, p);
1214 : #endif /* CONFIG_IEEE80211AC */
1215 :
1216 1310 : p = hostapd_eid_ext_capab(hapd, p);
1217 1310 : p = hostapd_eid_bss_max_idle_period(hapd, p);
1218 1310 : if (sta->qos_map_enabled)
1219 1193 : p = hostapd_eid_qos_map_set(hapd, p);
1220 :
1221 1310 : if (sta->flags & WLAN_STA_WMM)
1222 1305 : p = hostapd_eid_wmm(hapd, p);
1223 :
1224 : #ifdef CONFIG_WPS
1225 2534 : if ((sta->flags & WLAN_STA_WPS) ||
1226 1225 : ((sta->flags & WLAN_STA_MAYBE_WPS) && hapd->conf->wpa)) {
1227 86 : struct wpabuf *wps = wps_build_assoc_resp_ie();
1228 86 : if (wps) {
1229 86 : os_memcpy(p, wpabuf_head(wps), wpabuf_len(wps));
1230 86 : p += wpabuf_len(wps);
1231 86 : wpabuf_free(wps);
1232 : }
1233 : }
1234 : #endif /* CONFIG_WPS */
1235 :
1236 : #ifdef CONFIG_P2P
1237 : if (sta->p2p_ie) {
1238 : struct wpabuf *p2p_resp_ie;
1239 : enum p2p_status_code status;
1240 : switch (status_code) {
1241 : case WLAN_STATUS_SUCCESS:
1242 : status = P2P_SC_SUCCESS;
1243 : break;
1244 : case WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA:
1245 : status = P2P_SC_FAIL_LIMIT_REACHED;
1246 : break;
1247 : default:
1248 : status = P2P_SC_FAIL_INVALID_PARAMS;
1249 : break;
1250 : }
1251 : p2p_resp_ie = p2p_group_assoc_resp_ie(hapd->p2p_group, status);
1252 : if (p2p_resp_ie) {
1253 : os_memcpy(p, wpabuf_head(p2p_resp_ie),
1254 : wpabuf_len(p2p_resp_ie));
1255 : p += wpabuf_len(p2p_resp_ie);
1256 : wpabuf_free(p2p_resp_ie);
1257 : }
1258 : }
1259 : #endif /* CONFIG_P2P */
1260 :
1261 : #ifdef CONFIG_P2P_MANAGER
1262 1310 : if (hapd->conf->p2p & P2P_MANAGE)
1263 5 : p = hostapd_eid_p2p_manage(hapd, p);
1264 : #endif /* CONFIG_P2P_MANAGER */
1265 :
1266 1310 : send_len += p - reply->u.assoc_resp.variable;
1267 :
1268 1310 : if (hostapd_drv_send_mlme(hapd, reply, send_len, 0) < 0)
1269 0 : wpa_printf(MSG_INFO, "Failed to send assoc resp: %s",
1270 0 : strerror(errno));
1271 1310 : }
1272 :
1273 :
1274 1311 : static void handle_assoc(struct hostapd_data *hapd,
1275 : const struct ieee80211_mgmt *mgmt, size_t len,
1276 : int reassoc)
1277 : {
1278 : u16 capab_info, listen_interval;
1279 1311 : u16 resp = WLAN_STATUS_SUCCESS;
1280 : const u8 *pos;
1281 : int left, i;
1282 : struct sta_info *sta;
1283 :
1284 1311 : if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_req) :
1285 : sizeof(mgmt->u.assoc_req))) {
1286 0 : wpa_printf(MSG_INFO, "handle_assoc(reassoc=%d) - too short payload (len=%lu)",
1287 : reassoc, (unsigned long) len);
1288 0 : return;
1289 : }
1290 :
1291 : #ifdef CONFIG_TESTING_OPTIONS
1292 1311 : if (reassoc) {
1293 258 : if (hapd->iconf->ignore_reassoc_probability > 0.0 &&
1294 0 : drand48() < hapd->iconf->ignore_reassoc_probability) {
1295 0 : wpa_printf(MSG_INFO,
1296 : "TESTING: ignoring reassoc request from "
1297 0 : MACSTR, MAC2STR(mgmt->sa));
1298 0 : return;
1299 : }
1300 : } else {
1301 1057 : if (hapd->iconf->ignore_assoc_probability > 0.0 &&
1302 4 : drand48() < hapd->iconf->ignore_assoc_probability) {
1303 6 : wpa_printf(MSG_INFO,
1304 : "TESTING: ignoring assoc request from "
1305 6 : MACSTR, MAC2STR(mgmt->sa));
1306 1 : return;
1307 : }
1308 : }
1309 : #endif /* CONFIG_TESTING_OPTIONS */
1310 :
1311 1310 : if (reassoc) {
1312 258 : capab_info = le_to_host16(mgmt->u.reassoc_req.capab_info);
1313 258 : listen_interval = le_to_host16(
1314 : mgmt->u.reassoc_req.listen_interval);
1315 3096 : wpa_printf(MSG_DEBUG, "reassociation request: STA=" MACSTR
1316 : " capab_info=0x%02x listen_interval=%d current_ap="
1317 : MACSTR,
1318 1548 : MAC2STR(mgmt->sa), capab_info, listen_interval,
1319 1548 : MAC2STR(mgmt->u.reassoc_req.current_ap));
1320 258 : left = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.reassoc_req));
1321 258 : pos = mgmt->u.reassoc_req.variable;
1322 : } else {
1323 1052 : capab_info = le_to_host16(mgmt->u.assoc_req.capab_info);
1324 1052 : listen_interval = le_to_host16(
1325 : mgmt->u.assoc_req.listen_interval);
1326 7364 : wpa_printf(MSG_DEBUG, "association request: STA=" MACSTR
1327 : " capab_info=0x%02x listen_interval=%d",
1328 6312 : MAC2STR(mgmt->sa), capab_info, listen_interval);
1329 1052 : left = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.assoc_req));
1330 1052 : pos = mgmt->u.assoc_req.variable;
1331 : }
1332 :
1333 1310 : sta = ap_get_sta(hapd, mgmt->sa);
1334 : #ifdef CONFIG_IEEE80211R
1335 1531 : if (sta && sta->auth_alg == WLAN_AUTH_FT &&
1336 221 : (sta->flags & WLAN_STA_AUTH) == 0) {
1337 324 : wpa_printf(MSG_DEBUG, "FT: Allow STA " MACSTR " to associate "
1338 : "prior to authentication since it is using "
1339 324 : "over-the-DS FT", MAC2STR(mgmt->sa));
1340 : } else
1341 : #endif /* CONFIG_IEEE80211R */
1342 1256 : if (sta == NULL || (sta->flags & WLAN_STA_AUTH) == 0) {
1343 0 : hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
1344 : HOSTAPD_LEVEL_INFO, "Station tried to "
1345 : "associate before authentication "
1346 : "(aid=%d flags=0x%x)",
1347 0 : sta ? sta->aid : -1,
1348 : sta ? sta->flags : 0);
1349 0 : send_deauth(hapd, mgmt->sa,
1350 : WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA);
1351 0 : return;
1352 : }
1353 :
1354 1310 : if (hapd->tkip_countermeasures) {
1355 0 : resp = WLAN_REASON_MICHAEL_MIC_FAILURE;
1356 0 : goto fail;
1357 : }
1358 :
1359 1310 : if (listen_interval > hapd->conf->max_listen_interval) {
1360 1 : hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
1361 : HOSTAPD_LEVEL_DEBUG,
1362 : "Too large Listen Interval (%d)",
1363 : listen_interval);
1364 1 : resp = WLAN_STATUS_ASSOC_DENIED_LISTEN_INT_TOO_LARGE;
1365 1 : goto fail;
1366 : }
1367 :
1368 : /* followed by SSID and Supported rates; and HT capabilities if 802.11n
1369 : * is used */
1370 1309 : resp = check_assoc_ies(hapd, sta, pos, left, reassoc);
1371 1309 : if (resp != WLAN_STATUS_SUCCESS)
1372 10 : goto fail;
1373 :
1374 1299 : if (hostapd_get_aid(hapd, sta) < 0) {
1375 0 : hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
1376 : HOSTAPD_LEVEL_INFO, "No room for more AIDs");
1377 0 : resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA;
1378 0 : goto fail;
1379 : }
1380 :
1381 1299 : sta->capability = capab_info;
1382 1299 : sta->listen_interval = listen_interval;
1383 :
1384 1299 : if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G)
1385 1278 : sta->flags |= WLAN_STA_NONERP;
1386 9011 : for (i = 0; i < sta->supported_rates_len; i++) {
1387 9007 : if ((sta->supported_rates[i] & 0x7f) > 22) {
1388 1295 : sta->flags &= ~WLAN_STA_NONERP;
1389 1295 : break;
1390 : }
1391 : }
1392 1299 : if (sta->flags & WLAN_STA_NONERP && !sta->nonerp_set) {
1393 0 : sta->nonerp_set = 1;
1394 0 : hapd->iface->num_sta_non_erp++;
1395 0 : if (hapd->iface->num_sta_non_erp == 1)
1396 0 : ieee802_11_set_beacons(hapd->iface);
1397 : }
1398 :
1399 1316 : if (!(sta->capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) &&
1400 17 : !sta->no_short_slot_time_set) {
1401 17 : sta->no_short_slot_time_set = 1;
1402 17 : hapd->iface->num_sta_no_short_slot_time++;
1403 17 : if (hapd->iface->current_mode->mode ==
1404 0 : HOSTAPD_MODE_IEEE80211G &&
1405 0 : hapd->iface->num_sta_no_short_slot_time == 1)
1406 0 : ieee802_11_set_beacons(hapd->iface);
1407 : }
1408 :
1409 1299 : if (sta->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
1410 1282 : sta->flags |= WLAN_STA_SHORT_PREAMBLE;
1411 : else
1412 17 : sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
1413 :
1414 1316 : if (!(sta->capability & WLAN_CAPABILITY_SHORT_PREAMBLE) &&
1415 17 : !sta->no_short_preamble_set) {
1416 17 : sta->no_short_preamble_set = 1;
1417 17 : hapd->iface->num_sta_no_short_preamble++;
1418 17 : if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
1419 0 : && hapd->iface->num_sta_no_short_preamble == 1)
1420 0 : ieee802_11_set_beacons(hapd->iface);
1421 : }
1422 :
1423 : #ifdef CONFIG_IEEE80211N
1424 1299 : update_ht_state(hapd, sta);
1425 : #endif /* CONFIG_IEEE80211N */
1426 :
1427 1299 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1428 : HOSTAPD_LEVEL_DEBUG,
1429 1299 : "association OK (aid %d)", sta->aid);
1430 : /* Station will be marked associated, after it acknowledges AssocResp
1431 : */
1432 1299 : sta->flags |= WLAN_STA_ASSOC_REQ_OK;
1433 :
1434 : #ifdef CONFIG_IEEE80211W
1435 1299 : if ((sta->flags & WLAN_STA_MFP) && sta->sa_query_timed_out) {
1436 2 : wpa_printf(MSG_DEBUG, "Allowing %sassociation after timed out "
1437 : "SA Query procedure", reassoc ? "re" : "");
1438 : /* TODO: Send a protected Disassociate frame to the STA using
1439 : * the old key and Reason Code "Previous Authentication no
1440 : * longer valid". Make sure this is only sent protected since
1441 : * unprotected frame would be received by the STA that is now
1442 : * trying to associate.
1443 : */
1444 : }
1445 : #endif /* CONFIG_IEEE80211W */
1446 :
1447 : /* Make sure that the previously registered inactivity timer will not
1448 : * remove the STA immediately. */
1449 1299 : sta->timeout_next = STA_NULLFUNC;
1450 :
1451 : fail:
1452 1310 : send_assoc_resp(hapd, sta, resp, reassoc, pos, left);
1453 : }
1454 :
1455 :
1456 1 : static void handle_disassoc(struct hostapd_data *hapd,
1457 : const struct ieee80211_mgmt *mgmt, size_t len)
1458 : {
1459 : struct sta_info *sta;
1460 :
1461 1 : if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.disassoc)) {
1462 0 : wpa_printf(MSG_INFO, "handle_disassoc - too short payload (len=%lu)",
1463 : (unsigned long) len);
1464 0 : return;
1465 : }
1466 :
1467 7 : wpa_printf(MSG_DEBUG, "disassocation: STA=" MACSTR " reason_code=%d",
1468 6 : MAC2STR(mgmt->sa),
1469 1 : le_to_host16(mgmt->u.disassoc.reason_code));
1470 :
1471 1 : sta = ap_get_sta(hapd, mgmt->sa);
1472 1 : if (sta == NULL) {
1473 0 : wpa_printf(MSG_INFO, "Station " MACSTR " trying to disassociate, but it is not associated",
1474 0 : MAC2STR(mgmt->sa));
1475 0 : return;
1476 : }
1477 :
1478 1 : ap_sta_set_authorized(hapd, sta, 0);
1479 1 : sta->flags &= ~(WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK);
1480 1 : wpa_auth_sm_event(sta->wpa_sm, WPA_DISASSOC);
1481 1 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1482 : HOSTAPD_LEVEL_INFO, "disassociated");
1483 1 : sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
1484 1 : ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
1485 : /* Stop Accounting and IEEE 802.1X sessions, but leave the STA
1486 : * authenticated. */
1487 1 : accounting_sta_stop(hapd, sta);
1488 1 : ieee802_1x_free_station(sta);
1489 1 : hostapd_drv_sta_remove(hapd, sta->addr);
1490 :
1491 1 : if (sta->timeout_next == STA_NULLFUNC ||
1492 0 : sta->timeout_next == STA_DISASSOC) {
1493 1 : sta->timeout_next = STA_DEAUTH;
1494 1 : eloop_cancel_timeout(ap_handle_timer, hapd, sta);
1495 1 : eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer,
1496 : hapd, sta);
1497 : }
1498 :
1499 1 : mlme_disassociate_indication(
1500 1 : hapd, sta, le_to_host16(mgmt->u.disassoc.reason_code));
1501 : }
1502 :
1503 :
1504 944 : static void handle_deauth(struct hostapd_data *hapd,
1505 : const struct ieee80211_mgmt *mgmt, size_t len)
1506 : {
1507 : struct sta_info *sta;
1508 :
1509 944 : if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.deauth)) {
1510 0 : wpa_msg(hapd->msg_ctx, MSG_DEBUG, "handle_deauth - too short "
1511 : "payload (len=%lu)", (unsigned long) len);
1512 0 : return;
1513 : }
1514 :
1515 6608 : wpa_msg(hapd->msg_ctx, MSG_DEBUG, "deauthentication: STA=" MACSTR
1516 : " reason_code=%d",
1517 6608 : MAC2STR(mgmt->sa), le_to_host16(mgmt->u.deauth.reason_code));
1518 :
1519 944 : sta = ap_get_sta(hapd, mgmt->sa);
1520 944 : if (sta == NULL) {
1521 0 : wpa_msg(hapd->msg_ctx, MSG_DEBUG, "Station " MACSTR " trying "
1522 : "to deauthenticate, but it is not authenticated",
1523 0 : MAC2STR(mgmt->sa));
1524 0 : return;
1525 : }
1526 :
1527 944 : ap_sta_set_authorized(hapd, sta, 0);
1528 944 : sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC |
1529 : WLAN_STA_ASSOC_REQ_OK);
1530 944 : wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH);
1531 944 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1532 : HOSTAPD_LEVEL_DEBUG, "deauthenticated");
1533 944 : mlme_deauthenticate_indication(
1534 944 : hapd, sta, le_to_host16(mgmt->u.deauth.reason_code));
1535 944 : sta->acct_terminate_cause = RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
1536 944 : ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
1537 944 : ap_free_sta(hapd, sta);
1538 : }
1539 :
1540 :
1541 2667 : static void handle_beacon(struct hostapd_data *hapd,
1542 : const struct ieee80211_mgmt *mgmt, size_t len,
1543 : struct hostapd_frame_info *fi)
1544 : {
1545 : struct ieee802_11_elems elems;
1546 :
1547 2667 : if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.beacon)) {
1548 0 : wpa_printf(MSG_INFO, "handle_beacon - too short payload (len=%lu)",
1549 : (unsigned long) len);
1550 2667 : return;
1551 : }
1552 :
1553 2667 : (void) ieee802_11_parse_elems(mgmt->u.beacon.variable,
1554 : len - (IEEE80211_HDRLEN +
1555 : sizeof(mgmt->u.beacon)), &elems,
1556 : 0);
1557 :
1558 2667 : ap_list_process_beacon(hapd->iface, mgmt, &elems, fi);
1559 : }
1560 :
1561 :
1562 : #ifdef CONFIG_IEEE80211W
1563 :
1564 2 : static int hostapd_sa_query_action(struct hostapd_data *hapd,
1565 : const struct ieee80211_mgmt *mgmt,
1566 : size_t len)
1567 : {
1568 : const u8 *end;
1569 :
1570 2 : end = mgmt->u.action.u.sa_query_resp.trans_id +
1571 : WLAN_SA_QUERY_TR_ID_LEN;
1572 2 : if (((u8 *) mgmt) + len < end) {
1573 0 : wpa_printf(MSG_DEBUG, "IEEE 802.11: Too short SA Query Action "
1574 : "frame (len=%lu)", (unsigned long) len);
1575 0 : return 0;
1576 : }
1577 :
1578 2 : ieee802_11_sa_query_action(hapd, mgmt->sa,
1579 2 : mgmt->u.action.u.sa_query_resp.action,
1580 2 : mgmt->u.action.u.sa_query_resp.trans_id);
1581 2 : return 1;
1582 : }
1583 :
1584 :
1585 0 : static int robust_action_frame(u8 category)
1586 : {
1587 0 : return category != WLAN_ACTION_PUBLIC &&
1588 : category != WLAN_ACTION_HT;
1589 : }
1590 : #endif /* CONFIG_IEEE80211W */
1591 :
1592 :
1593 359 : static int handle_action(struct hostapd_data *hapd,
1594 : const struct ieee80211_mgmt *mgmt, size_t len)
1595 : {
1596 : struct sta_info *sta;
1597 359 : sta = ap_get_sta(hapd, mgmt->sa);
1598 :
1599 359 : if (len < IEEE80211_HDRLEN + 1) {
1600 0 : hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
1601 : HOSTAPD_LEVEL_DEBUG,
1602 : "handle_action - too short payload (len=%lu)",
1603 : (unsigned long) len);
1604 0 : return 0;
1605 : }
1606 :
1607 359 : if (mgmt->u.action.category != WLAN_ACTION_PUBLIC &&
1608 135 : (sta == NULL || !(sta->flags & WLAN_STA_ASSOC))) {
1609 0 : wpa_printf(MSG_DEBUG, "IEEE 802.11: Ignored Action "
1610 : "frame (category=%u) from unassociated STA " MACSTR,
1611 0 : MAC2STR(mgmt->sa), mgmt->u.action.category);
1612 0 : return 0;
1613 : }
1614 :
1615 : #ifdef CONFIG_IEEE80211W
1616 370 : if (sta && (sta->flags & WLAN_STA_MFP) &&
1617 11 : !(mgmt->frame_control & host_to_le16(WLAN_FC_ISWEP)) &&
1618 0 : robust_action_frame(mgmt->u.action.category)) {
1619 0 : hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
1620 : HOSTAPD_LEVEL_DEBUG,
1621 : "Dropped unprotected Robust Action frame from "
1622 : "an MFP STA");
1623 0 : return 0;
1624 : }
1625 : #endif /* CONFIG_IEEE80211W */
1626 :
1627 359 : switch (mgmt->u.action.category) {
1628 : #ifdef CONFIG_IEEE80211R
1629 : case WLAN_ACTION_FT:
1630 226 : if (!sta ||
1631 113 : wpa_ft_action_rx(sta->wpa_sm, (u8 *) &mgmt->u.action,
1632 : len - IEEE80211_HDRLEN))
1633 : break;
1634 113 : return 1;
1635 : #endif /* CONFIG_IEEE80211R */
1636 : case WLAN_ACTION_WMM:
1637 0 : hostapd_wmm_action(hapd, mgmt, len);
1638 0 : return 1;
1639 : #ifdef CONFIG_IEEE80211W
1640 : case WLAN_ACTION_SA_QUERY:
1641 2 : return hostapd_sa_query_action(hapd, mgmt, len);
1642 : #endif /* CONFIG_IEEE80211W */
1643 : #ifdef CONFIG_WNM
1644 : case WLAN_ACTION_WNM:
1645 18 : ieee802_11_rx_wnm_action_ap(hapd, mgmt, len);
1646 18 : return 1;
1647 : #endif /* CONFIG_WNM */
1648 : case WLAN_ACTION_PUBLIC:
1649 : case WLAN_ACTION_PROTECTED_DUAL:
1650 : #ifdef CONFIG_IEEE80211N
1651 225 : if (mgmt->u.action.u.public_action.action ==
1652 : WLAN_PA_20_40_BSS_COEX) {
1653 24 : wpa_printf(MSG_DEBUG,
1654 : "HT20/40 coex mgmt frame received from STA "
1655 24 : MACSTR, MAC2STR(mgmt->sa));
1656 4 : hostapd_2040_coex_action(hapd, mgmt, len);
1657 : }
1658 : #endif /* CONFIG_IEEE80211N */
1659 225 : if (hapd->public_action_cb) {
1660 0 : hapd->public_action_cb(hapd->public_action_cb_ctx,
1661 : (u8 *) mgmt, len,
1662 0 : hapd->iface->freq);
1663 : }
1664 225 : if (hapd->public_action_cb2) {
1665 450 : hapd->public_action_cb2(hapd->public_action_cb2_ctx,
1666 : (u8 *) mgmt, len,
1667 225 : hapd->iface->freq);
1668 : }
1669 225 : if (hapd->public_action_cb || hapd->public_action_cb2)
1670 225 : return 1;
1671 0 : break;
1672 : case WLAN_ACTION_VENDOR_SPECIFIC:
1673 0 : if (hapd->vendor_action_cb) {
1674 0 : if (hapd->vendor_action_cb(hapd->vendor_action_cb_ctx,
1675 : (u8 *) mgmt, len,
1676 0 : hapd->iface->freq) == 0)
1677 0 : return 1;
1678 : }
1679 0 : break;
1680 : }
1681 :
1682 1 : hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
1683 : HOSTAPD_LEVEL_DEBUG,
1684 : "handle_action - unknown action category %d or invalid "
1685 : "frame",
1686 1 : mgmt->u.action.category);
1687 2 : if (!(mgmt->da[0] & 0x01) && !(mgmt->u.action.category & 0x80) &&
1688 1 : !(mgmt->sa[0] & 0x01)) {
1689 : struct ieee80211_mgmt *resp;
1690 :
1691 : /*
1692 : * IEEE 802.11-REVma/D9.0 - 7.3.1.11
1693 : * Return the Action frame to the source without change
1694 : * except that MSB of the Category set to 1.
1695 : */
1696 1 : wpa_printf(MSG_DEBUG, "IEEE 802.11: Return unknown Action "
1697 : "frame back to sender");
1698 1 : resp = os_malloc(len);
1699 1 : if (resp == NULL)
1700 0 : return 0;
1701 1 : os_memcpy(resp, mgmt, len);
1702 1 : os_memcpy(resp->da, resp->sa, ETH_ALEN);
1703 1 : os_memcpy(resp->sa, hapd->own_addr, ETH_ALEN);
1704 1 : os_memcpy(resp->bssid, hapd->own_addr, ETH_ALEN);
1705 1 : resp->u.action.category |= 0x80;
1706 :
1707 1 : if (hostapd_drv_send_mlme(hapd, resp, len, 0) < 0) {
1708 0 : wpa_printf(MSG_ERROR, "IEEE 802.11: Failed to send "
1709 : "Action frame");
1710 : }
1711 1 : os_free(resp);
1712 : }
1713 :
1714 1 : return 1;
1715 : }
1716 :
1717 :
1718 : /**
1719 : * ieee802_11_mgmt - process incoming IEEE 802.11 management frames
1720 : * @hapd: hostapd BSS data structure (the BSS to which the management frame was
1721 : * sent to)
1722 : * @buf: management frame data (starting from IEEE 802.11 header)
1723 : * @len: length of frame data in octets
1724 : * @fi: meta data about received frame (signal level, etc.)
1725 : *
1726 : * Process all incoming IEEE 802.11 management frames. This will be called for
1727 : * each frame received from the kernel driver through wlan#ap interface. In
1728 : * addition, it can be called to re-inserted pending frames (e.g., when using
1729 : * external RADIUS server as an MAC ACL).
1730 : */
1731 8011 : int ieee802_11_mgmt(struct hostapd_data *hapd, const u8 *buf, size_t len,
1732 : struct hostapd_frame_info *fi)
1733 : {
1734 : struct ieee80211_mgmt *mgmt;
1735 : int broadcast;
1736 : u16 fc, stype;
1737 8011 : int ret = 0;
1738 :
1739 8011 : if (len < 24)
1740 0 : return 0;
1741 :
1742 8011 : mgmt = (struct ieee80211_mgmt *) buf;
1743 8011 : fc = le_to_host16(mgmt->frame_control);
1744 8011 : stype = WLAN_FC_GET_STYPE(fc);
1745 :
1746 8011 : if (stype == WLAN_FC_STYPE_BEACON) {
1747 2667 : handle_beacon(hapd, mgmt, len, fi);
1748 2667 : return 1;
1749 : }
1750 :
1751 13448 : broadcast = mgmt->bssid[0] == 0xff && mgmt->bssid[1] == 0xff &&
1752 4140 : mgmt->bssid[2] == 0xff && mgmt->bssid[3] == 0xff &&
1753 8104 : mgmt->bssid[4] == 0xff && mgmt->bssid[5] == 0xff;
1754 :
1755 9308 : if (!broadcast &&
1756 : #ifdef CONFIG_P2P
1757 : /* Invitation responses can be sent with the peer MAC as BSSID */
1758 : !((hapd->conf->p2p & P2P_GROUP_OWNER) &&
1759 : stype == WLAN_FC_STYPE_ACTION) &&
1760 : #endif /* CONFIG_P2P */
1761 3964 : os_memcmp(mgmt->bssid, hapd->own_addr, ETH_ALEN) != 0) {
1762 0 : wpa_printf(MSG_INFO, "MGMT: BSSID=" MACSTR " not our address",
1763 0 : MAC2STR(mgmt->bssid));
1764 0 : return 0;
1765 : }
1766 :
1767 :
1768 5344 : if (stype == WLAN_FC_STYPE_PROBE_REQ) {
1769 1475 : handle_probe_req(hapd, mgmt, len, fi->ssi_signal);
1770 1475 : return 1;
1771 : }
1772 :
1773 3869 : if (os_memcmp(mgmt->da, hapd->own_addr, ETH_ALEN) != 0) {
1774 0 : hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
1775 : HOSTAPD_LEVEL_DEBUG,
1776 : "MGMT: DA=" MACSTR " not our address",
1777 0 : MAC2STR(mgmt->da));
1778 0 : return 0;
1779 : }
1780 :
1781 3869 : switch (stype) {
1782 : case WLAN_FC_STYPE_AUTH:
1783 1254 : wpa_printf(MSG_DEBUG, "mgmt::auth");
1784 1254 : handle_auth(hapd, mgmt, len);
1785 1254 : ret = 1;
1786 1254 : break;
1787 : case WLAN_FC_STYPE_ASSOC_REQ:
1788 1053 : wpa_printf(MSG_DEBUG, "mgmt::assoc_req");
1789 1053 : handle_assoc(hapd, mgmt, len, 0);
1790 1053 : ret = 1;
1791 1053 : break;
1792 : case WLAN_FC_STYPE_REASSOC_REQ:
1793 258 : wpa_printf(MSG_DEBUG, "mgmt::reassoc_req");
1794 258 : handle_assoc(hapd, mgmt, len, 1);
1795 258 : ret = 1;
1796 258 : break;
1797 : case WLAN_FC_STYPE_DISASSOC:
1798 1 : wpa_printf(MSG_DEBUG, "mgmt::disassoc");
1799 1 : handle_disassoc(hapd, mgmt, len);
1800 1 : ret = 1;
1801 1 : break;
1802 : case WLAN_FC_STYPE_DEAUTH:
1803 944 : wpa_msg(hapd->msg_ctx, MSG_DEBUG, "mgmt::deauth");
1804 944 : handle_deauth(hapd, mgmt, len);
1805 944 : ret = 1;
1806 944 : break;
1807 : case WLAN_FC_STYPE_ACTION:
1808 359 : wpa_printf(MSG_DEBUG, "mgmt::action");
1809 359 : ret = handle_action(hapd, mgmt, len);
1810 359 : break;
1811 : default:
1812 0 : hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
1813 : HOSTAPD_LEVEL_DEBUG,
1814 : "unknown mgmt frame subtype %d", stype);
1815 0 : break;
1816 : }
1817 :
1818 3869 : return ret;
1819 : }
1820 :
1821 :
1822 1249 : static void handle_auth_cb(struct hostapd_data *hapd,
1823 : const struct ieee80211_mgmt *mgmt,
1824 : size_t len, int ok)
1825 : {
1826 : u16 auth_alg, auth_transaction, status_code;
1827 : struct sta_info *sta;
1828 :
1829 1249 : if (!ok) {
1830 0 : hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211,
1831 : HOSTAPD_LEVEL_NOTICE,
1832 : "did not acknowledge authentication response");
1833 0 : return;
1834 : }
1835 :
1836 1249 : if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.auth)) {
1837 0 : wpa_printf(MSG_INFO, "handle_auth_cb - too short payload (len=%lu)",
1838 : (unsigned long) len);
1839 0 : return;
1840 : }
1841 :
1842 1249 : auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
1843 1249 : auth_transaction = le_to_host16(mgmt->u.auth.auth_transaction);
1844 1249 : status_code = le_to_host16(mgmt->u.auth.status_code);
1845 :
1846 1249 : sta = ap_get_sta(hapd, mgmt->da);
1847 1249 : if (!sta) {
1848 90 : wpa_printf(MSG_INFO, "handle_auth_cb: STA " MACSTR " not found",
1849 90 : MAC2STR(mgmt->da));
1850 15 : return;
1851 : }
1852 :
1853 1234 : if (status_code == WLAN_STATUS_SUCCESS &&
1854 1065 : ((auth_alg == WLAN_AUTH_OPEN && auth_transaction == 2) ||
1855 4 : (auth_alg == WLAN_AUTH_SHARED_KEY && auth_transaction == 4))) {
1856 1067 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1857 : HOSTAPD_LEVEL_INFO, "authenticated");
1858 1067 : sta->flags |= WLAN_STA_AUTH;
1859 : }
1860 : }
1861 :
1862 :
1863 1 : static void hostapd_set_wds_encryption(struct hostapd_data *hapd,
1864 : struct sta_info *sta,
1865 : char *ifname_wds)
1866 : {
1867 : int i;
1868 1 : struct hostapd_ssid *ssid = sta->ssid;
1869 :
1870 1 : if (hapd->conf->ieee802_1x || hapd->conf->wpa)
1871 2 : return;
1872 :
1873 0 : for (i = 0; i < 4; i++) {
1874 0 : if (ssid->wep.key[i] &&
1875 0 : hostapd_drv_set_key(ifname_wds, hapd, WPA_ALG_WEP, NULL, i,
1876 0 : i == ssid->wep.idx, NULL, 0,
1877 0 : ssid->wep.key[i], ssid->wep.len[i])) {
1878 0 : wpa_printf(MSG_WARNING,
1879 : "Could not set WEP keys for WDS interface; %s",
1880 : ifname_wds);
1881 0 : break;
1882 : }
1883 : }
1884 : }
1885 :
1886 :
1887 1310 : static void handle_assoc_cb(struct hostapd_data *hapd,
1888 : const struct ieee80211_mgmt *mgmt,
1889 : size_t len, int reassoc, int ok)
1890 : {
1891 : u16 status;
1892 : struct sta_info *sta;
1893 1310 : int new_assoc = 1;
1894 : struct ieee80211_ht_capabilities ht_cap;
1895 : struct ieee80211_vht_capabilities vht_cap;
1896 :
1897 1310 : if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_resp) :
1898 : sizeof(mgmt->u.assoc_resp))) {
1899 0 : wpa_printf(MSG_INFO, "handle_assoc_cb(reassoc=%d) - too short payload (len=%lu)",
1900 : reassoc, (unsigned long) len);
1901 0 : return;
1902 : }
1903 :
1904 1310 : sta = ap_get_sta(hapd, mgmt->da);
1905 1310 : if (!sta) {
1906 0 : wpa_printf(MSG_INFO, "handle_assoc_cb: STA " MACSTR " not found",
1907 0 : MAC2STR(mgmt->da));
1908 0 : return;
1909 : }
1910 :
1911 1310 : if (!ok) {
1912 0 : hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211,
1913 : HOSTAPD_LEVEL_DEBUG,
1914 : "did not acknowledge association response");
1915 0 : sta->flags &= ~WLAN_STA_ASSOC_REQ_OK;
1916 0 : return;
1917 : }
1918 :
1919 1310 : if (reassoc)
1920 258 : status = le_to_host16(mgmt->u.reassoc_resp.status_code);
1921 : else
1922 1052 : status = le_to_host16(mgmt->u.assoc_resp.status_code);
1923 :
1924 1310 : if (status != WLAN_STATUS_SUCCESS)
1925 11 : return;
1926 :
1927 : /* Stop previous accounting session, if one is started, and allocate
1928 : * new session id for the new session. */
1929 1299 : accounting_sta_stop(hapd, sta);
1930 :
1931 1299 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1932 : HOSTAPD_LEVEL_INFO,
1933 : "associated (aid %d)",
1934 1299 : sta->aid);
1935 :
1936 1299 : if (sta->flags & WLAN_STA_ASSOC)
1937 4 : new_assoc = 0;
1938 1299 : sta->flags |= WLAN_STA_ASSOC;
1939 1299 : sta->flags &= ~WLAN_STA_WNM_SLEEP_MODE;
1940 2397 : if ((!hapd->conf->ieee802_1x && !hapd->conf->wpa && !hapd->conf->osen) ||
1941 1098 : sta->auth_alg == WLAN_AUTH_FT) {
1942 : /*
1943 : * Open, static WEP, or FT protocol; no separate authorization
1944 : * step.
1945 : */
1946 422 : ap_sta_set_authorized(hapd, sta, 1);
1947 : }
1948 :
1949 1299 : if (reassoc)
1950 257 : mlme_reassociate_indication(hapd, sta);
1951 : else
1952 1042 : mlme_associate_indication(hapd, sta);
1953 :
1954 : #ifdef CONFIG_IEEE80211W
1955 1299 : sta->sa_query_timed_out = 0;
1956 : #endif /* CONFIG_IEEE80211W */
1957 :
1958 : /*
1959 : * Remove the STA entry in order to make sure the STA PS state gets
1960 : * cleared and configuration gets updated in case of reassociation back
1961 : * to the same AP.
1962 : */
1963 1299 : hostapd_drv_sta_remove(hapd, sta->addr);
1964 :
1965 : #ifdef CONFIG_IEEE80211N
1966 1299 : if (sta->flags & WLAN_STA_HT)
1967 1276 : hostapd_get_ht_capab(hapd, sta->ht_capabilities, &ht_cap);
1968 : #endif /* CONFIG_IEEE80211N */
1969 : #ifdef CONFIG_IEEE80211AC
1970 1299 : if (sta->flags & WLAN_STA_VHT)
1971 6 : hostapd_get_vht_capab(hapd, sta->vht_capabilities, &vht_cap);
1972 : #endif /* CONFIG_IEEE80211AC */
1973 :
1974 9093 : if (hostapd_sta_add(hapd, sta->addr, sta->aid, sta->capability,
1975 2598 : sta->supported_rates, sta->supported_rates_len,
1976 1299 : sta->listen_interval,
1977 1299 : sta->flags & WLAN_STA_HT ? &ht_cap : NULL,
1978 1299 : sta->flags & WLAN_STA_VHT ? &vht_cap : NULL,
1979 2598 : sta->flags, sta->qosinfo, sta->vht_opmode)) {
1980 0 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1981 : HOSTAPD_LEVEL_NOTICE,
1982 : "Could not add STA to kernel driver");
1983 :
1984 0 : ap_sta_disconnect(hapd, sta, sta->addr,
1985 : WLAN_REASON_DISASSOC_AP_BUSY);
1986 :
1987 0 : return;
1988 : }
1989 :
1990 1299 : if (sta->flags & WLAN_STA_WDS) {
1991 : int ret;
1992 : char ifname_wds[IFNAMSIZ + 1];
1993 :
1994 0 : ret = hostapd_set_wds_sta(hapd, ifname_wds, sta->addr,
1995 0 : sta->aid, 1);
1996 0 : if (!ret)
1997 0 : hostapd_set_wds_encryption(hapd, sta, ifname_wds);
1998 : }
1999 :
2000 1299 : if (sta->eapol_sm == NULL) {
2001 : /*
2002 : * This STA does not use RADIUS server for EAP authentication,
2003 : * so bind it to the selected VLAN interface now, since the
2004 : * interface selection is not going to change anymore.
2005 : */
2006 1274 : if (ap_sta_bind_vlan(hapd, sta, 0) < 0)
2007 0 : return;
2008 25 : } else if (sta->vlan_id) {
2009 : /* VLAN ID already set (e.g., by PMKSA caching), so bind STA */
2010 0 : if (ap_sta_bind_vlan(hapd, sta, 0) < 0)
2011 0 : return;
2012 : }
2013 :
2014 1299 : hostapd_set_sta_flags(hapd, sta);
2015 :
2016 1299 : if (sta->auth_alg == WLAN_AUTH_FT)
2017 221 : wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT);
2018 : else
2019 1078 : wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
2020 1299 : hapd->new_assoc_sta_cb(hapd, sta, !new_assoc);
2021 :
2022 1299 : ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
2023 : }
2024 :
2025 :
2026 207 : static void handle_deauth_cb(struct hostapd_data *hapd,
2027 : const struct ieee80211_mgmt *mgmt,
2028 : size_t len, int ok)
2029 : {
2030 : struct sta_info *sta;
2031 207 : if (mgmt->da[0] & 0x01)
2032 19 : return;
2033 188 : sta = ap_get_sta(hapd, mgmt->da);
2034 188 : if (!sta) {
2035 642 : wpa_printf(MSG_DEBUG, "handle_deauth_cb: STA " MACSTR
2036 642 : " not found", MAC2STR(mgmt->da));
2037 107 : return;
2038 : }
2039 81 : if (ok)
2040 468 : wpa_printf(MSG_DEBUG, "STA " MACSTR " acknowledged deauth",
2041 468 : MAC2STR(sta->addr));
2042 : else
2043 18 : wpa_printf(MSG_DEBUG, "STA " MACSTR " did not acknowledge "
2044 18 : "deauth", MAC2STR(sta->addr));
2045 :
2046 81 : ap_sta_deauth_cb(hapd, sta);
2047 : }
2048 :
2049 :
2050 4 : static void handle_disassoc_cb(struct hostapd_data *hapd,
2051 : const struct ieee80211_mgmt *mgmt,
2052 : size_t len, int ok)
2053 : {
2054 : struct sta_info *sta;
2055 4 : if (mgmt->da[0] & 0x01)
2056 1 : return;
2057 3 : sta = ap_get_sta(hapd, mgmt->da);
2058 3 : if (!sta) {
2059 0 : wpa_printf(MSG_DEBUG, "handle_disassoc_cb: STA " MACSTR
2060 0 : " not found", MAC2STR(mgmt->da));
2061 0 : return;
2062 : }
2063 3 : if (ok)
2064 6 : wpa_printf(MSG_DEBUG, "STA " MACSTR " acknowledged disassoc",
2065 6 : MAC2STR(sta->addr));
2066 : else
2067 12 : wpa_printf(MSG_DEBUG, "STA " MACSTR " did not acknowledge "
2068 12 : "disassoc", MAC2STR(sta->addr));
2069 :
2070 3 : ap_sta_disassoc_cb(hapd, sta);
2071 : }
2072 :
2073 :
2074 : /**
2075 : * ieee802_11_mgmt_cb - Process management frame TX status callback
2076 : * @hapd: hostapd BSS data structure (the BSS from which the management frame
2077 : * was sent from)
2078 : * @buf: management frame data (starting from IEEE 802.11 header)
2079 : * @len: length of frame data in octets
2080 : * @stype: management frame subtype from frame control field
2081 : * @ok: Whether the frame was ACK'ed
2082 : */
2083 3448 : void ieee802_11_mgmt_cb(struct hostapd_data *hapd, const u8 *buf, size_t len,
2084 : u16 stype, int ok)
2085 : {
2086 : const struct ieee80211_mgmt *mgmt;
2087 3448 : mgmt = (const struct ieee80211_mgmt *) buf;
2088 :
2089 : #ifdef CONFIG_TESTING_OPTIONS
2090 3448 : if (hapd->ext_mgmt_frame_handling) {
2091 185 : wpa_msg(hapd->msg_ctx, MSG_INFO, "MGMT-TX-STATUS stype=%u ok=%d",
2092 : stype, ok);
2093 3633 : return;
2094 : }
2095 : #endif /* CONFIG_TESTING_OPTIONS */
2096 :
2097 3263 : switch (stype) {
2098 : case WLAN_FC_STYPE_AUTH:
2099 1249 : wpa_printf(MSG_DEBUG, "mgmt::auth cb");
2100 1249 : handle_auth_cb(hapd, mgmt, len, ok);
2101 1249 : break;
2102 : case WLAN_FC_STYPE_ASSOC_RESP:
2103 1052 : wpa_printf(MSG_DEBUG, "mgmt::assoc_resp cb");
2104 1052 : handle_assoc_cb(hapd, mgmt, len, 0, ok);
2105 1052 : break;
2106 : case WLAN_FC_STYPE_REASSOC_RESP:
2107 258 : wpa_printf(MSG_DEBUG, "mgmt::reassoc_resp cb");
2108 258 : handle_assoc_cb(hapd, mgmt, len, 1, ok);
2109 258 : break;
2110 : case WLAN_FC_STYPE_PROBE_RESP:
2111 116 : wpa_printf(MSG_EXCESSIVE, "mgmt::proberesp cb");
2112 116 : break;
2113 : case WLAN_FC_STYPE_DEAUTH:
2114 207 : wpa_printf(MSG_DEBUG, "mgmt::deauth cb");
2115 207 : handle_deauth_cb(hapd, mgmt, len, ok);
2116 207 : break;
2117 : case WLAN_FC_STYPE_DISASSOC:
2118 4 : wpa_printf(MSG_DEBUG, "mgmt::disassoc cb");
2119 4 : handle_disassoc_cb(hapd, mgmt, len, ok);
2120 4 : break;
2121 : case WLAN_FC_STYPE_ACTION:
2122 377 : wpa_printf(MSG_DEBUG, "mgmt::action cb");
2123 377 : break;
2124 : default:
2125 0 : wpa_printf(MSG_INFO, "unknown mgmt cb frame subtype %d", stype);
2126 0 : break;
2127 : }
2128 : }
2129 :
2130 :
2131 7 : int ieee802_11_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen)
2132 : {
2133 : /* TODO */
2134 7 : return 0;
2135 : }
2136 :
2137 :
2138 30 : int ieee802_11_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta,
2139 : char *buf, size_t buflen)
2140 : {
2141 : /* TODO */
2142 30 : return 0;
2143 : }
2144 :
2145 :
2146 0 : void hostapd_tx_status(struct hostapd_data *hapd, const u8 *addr,
2147 : const u8 *buf, size_t len, int ack)
2148 : {
2149 : struct sta_info *sta;
2150 0 : struct hostapd_iface *iface = hapd->iface;
2151 :
2152 0 : sta = ap_get_sta(hapd, addr);
2153 0 : if (sta == NULL && iface->num_bss > 1) {
2154 : size_t j;
2155 0 : for (j = 0; j < iface->num_bss; j++) {
2156 0 : hapd = iface->bss[j];
2157 0 : sta = ap_get_sta(hapd, addr);
2158 0 : if (sta)
2159 0 : break;
2160 : }
2161 : }
2162 0 : if (sta == NULL || !(sta->flags & WLAN_STA_ASSOC))
2163 0 : return;
2164 0 : if (sta->flags & WLAN_STA_PENDING_POLL) {
2165 0 : wpa_printf(MSG_DEBUG, "STA " MACSTR " %s pending "
2166 0 : "activity poll", MAC2STR(sta->addr),
2167 : ack ? "ACKed" : "did not ACK");
2168 0 : if (ack)
2169 0 : sta->flags &= ~WLAN_STA_PENDING_POLL;
2170 : }
2171 :
2172 0 : ieee802_1x_tx_status(hapd, sta, buf, len, ack);
2173 : }
2174 :
2175 :
2176 4775 : void hostapd_eapol_tx_status(struct hostapd_data *hapd, const u8 *dst,
2177 : const u8 *data, size_t len, int ack)
2178 : {
2179 : struct sta_info *sta;
2180 4775 : struct hostapd_iface *iface = hapd->iface;
2181 :
2182 4775 : sta = ap_get_sta(hapd, dst);
2183 4775 : if (sta == NULL && iface->num_bss > 1) {
2184 : size_t j;
2185 13 : for (j = 0; j < iface->num_bss; j++) {
2186 13 : hapd = iface->bss[j];
2187 13 : sta = ap_get_sta(hapd, dst);
2188 13 : if (sta)
2189 5 : break;
2190 : }
2191 : }
2192 4775 : if (sta == NULL || !(sta->flags & WLAN_STA_ASSOC)) {
2193 1032 : wpa_printf(MSG_DEBUG, "Ignore TX status for Data frame to STA "
2194 : MACSTR " that is not currently associated",
2195 1032 : MAC2STR(dst));
2196 4947 : return;
2197 : }
2198 :
2199 4603 : ieee802_1x_eapol_tx_status(hapd, sta, data, len, ack);
2200 : }
2201 :
2202 :
2203 0 : void hostapd_client_poll_ok(struct hostapd_data *hapd, const u8 *addr)
2204 : {
2205 : struct sta_info *sta;
2206 0 : struct hostapd_iface *iface = hapd->iface;
2207 :
2208 0 : sta = ap_get_sta(hapd, addr);
2209 0 : if (sta == NULL && iface->num_bss > 1) {
2210 : size_t j;
2211 0 : for (j = 0; j < iface->num_bss; j++) {
2212 0 : hapd = iface->bss[j];
2213 0 : sta = ap_get_sta(hapd, addr);
2214 0 : if (sta)
2215 0 : break;
2216 : }
2217 : }
2218 0 : if (sta == NULL)
2219 0 : return;
2220 0 : if (!(sta->flags & WLAN_STA_PENDING_POLL))
2221 0 : return;
2222 :
2223 0 : wpa_printf(MSG_DEBUG, "STA " MACSTR " ACKed pending "
2224 0 : "activity poll", MAC2STR(sta->addr));
2225 0 : sta->flags &= ~WLAN_STA_PENDING_POLL;
2226 : }
2227 :
2228 :
2229 7 : void ieee802_11_rx_from_unknown(struct hostapd_data *hapd, const u8 *src,
2230 : int wds)
2231 : {
2232 : struct sta_info *sta;
2233 :
2234 7 : sta = ap_get_sta(hapd, src);
2235 7 : if (sta && (sta->flags & WLAN_STA_ASSOC)) {
2236 7 : if (!hapd->conf->wds_sta)
2237 5 : return;
2238 :
2239 2 : if (wds && !(sta->flags & WLAN_STA_WDS)) {
2240 : int ret;
2241 : char ifname_wds[IFNAMSIZ + 1];
2242 :
2243 7 : wpa_printf(MSG_DEBUG, "Enable 4-address WDS mode for "
2244 : "STA " MACSTR " (aid %u)",
2245 7 : MAC2STR(sta->addr), sta->aid);
2246 1 : sta->flags |= WLAN_STA_WDS;
2247 2 : ret = hostapd_set_wds_sta(hapd, ifname_wds,
2248 2 : sta->addr, sta->aid, 1);
2249 1 : if (!ret)
2250 1 : hostapd_set_wds_encryption(hapd, sta,
2251 : ifname_wds);
2252 : }
2253 2 : return;
2254 : }
2255 :
2256 0 : wpa_printf(MSG_DEBUG, "Data/PS-poll frame from not associated STA "
2257 0 : MACSTR, MAC2STR(src));
2258 0 : if (src[0] & 0x01) {
2259 : /* Broadcast bit set in SA?! Ignore the frame silently. */
2260 0 : return;
2261 : }
2262 :
2263 0 : if (sta && (sta->flags & WLAN_STA_ASSOC_REQ_OK)) {
2264 0 : wpa_printf(MSG_DEBUG, "Association Response to the STA has "
2265 : "already been sent, but no TX status yet known - "
2266 : "ignore Class 3 frame issue with " MACSTR,
2267 0 : MAC2STR(src));
2268 0 : return;
2269 : }
2270 :
2271 0 : if (sta && (sta->flags & WLAN_STA_AUTH))
2272 0 : hostapd_drv_sta_disassoc(
2273 : hapd, src,
2274 : WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
2275 : else
2276 0 : hostapd_drv_sta_deauth(
2277 : hapd, src,
2278 : WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
2279 : }
2280 :
2281 :
2282 : #endif /* CONFIG_NATIVE_WINDOWS */
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