Line data Source code
1 : /*
2 : * hostapd / Station table
3 : * Copyright (c) 2002-2013, Jouni Malinen <j@w1.fi>
4 : *
5 : * This software may be distributed under the terms of the BSD license.
6 : * See README for more details.
7 : */
8 :
9 : #include "utils/includes.h"
10 :
11 : #include "utils/common.h"
12 : #include "utils/eloop.h"
13 : #include "common/ieee802_11_defs.h"
14 : #include "common/wpa_ctrl.h"
15 : #include "common/sae.h"
16 : #include "radius/radius.h"
17 : #include "radius/radius_client.h"
18 : #include "p2p/p2p.h"
19 : #include "fst/fst.h"
20 : #include "hostapd.h"
21 : #include "accounting.h"
22 : #include "ieee802_1x.h"
23 : #include "ieee802_11.h"
24 : #include "ieee802_11_auth.h"
25 : #include "wpa_auth.h"
26 : #include "preauth_auth.h"
27 : #include "ap_config.h"
28 : #include "beacon.h"
29 : #include "ap_mlme.h"
30 : #include "vlan_init.h"
31 : #include "p2p_hostapd.h"
32 : #include "ap_drv_ops.h"
33 : #include "gas_serv.h"
34 : #include "wnm_ap.h"
35 : #include "mbo_ap.h"
36 : #include "ndisc_snoop.h"
37 : #include "sta_info.h"
38 : #include "vlan.h"
39 :
40 : static void ap_sta_remove_in_other_bss(struct hostapd_data *hapd,
41 : struct sta_info *sta);
42 : static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx);
43 : static void ap_handle_session_warning_timer(void *eloop_ctx, void *timeout_ctx);
44 : static void ap_sta_deauth_cb_timeout(void *eloop_ctx, void *timeout_ctx);
45 : static void ap_sta_disassoc_cb_timeout(void *eloop_ctx, void *timeout_ctx);
46 : #ifdef CONFIG_IEEE80211W
47 : static void ap_sa_query_timer(void *eloop_ctx, void *timeout_ctx);
48 : #endif /* CONFIG_IEEE80211W */
49 : static int ap_sta_remove(struct hostapd_data *hapd, struct sta_info *sta);
50 :
51 7490 : int ap_for_each_sta(struct hostapd_data *hapd,
52 : int (*cb)(struct hostapd_data *hapd, struct sta_info *sta,
53 : void *ctx),
54 : void *ctx)
55 : {
56 : struct sta_info *sta;
57 :
58 8823 : for (sta = hapd->sta_list; sta; sta = sta->next) {
59 8493 : if (cb(hapd, sta, ctx))
60 7160 : return 1;
61 : }
62 :
63 330 : return 0;
64 : }
65 :
66 :
67 748189 : struct sta_info * ap_get_sta(struct hostapd_data *hapd, const u8 *sta)
68 : {
69 : struct sta_info *s;
70 :
71 748189 : s = hapd->sta_hash[STA_HASH(sta)];
72 1582451 : while (s != NULL && os_memcmp(s->addr, sta, 6) != 0)
73 86073 : s = s->hnext;
74 748189 : return s;
75 : }
76 :
77 :
78 : #ifdef CONFIG_P2P
79 5 : struct sta_info * ap_get_sta_p2p(struct hostapd_data *hapd, const u8 *addr)
80 : {
81 : struct sta_info *sta;
82 :
83 7 : for (sta = hapd->sta_list; sta; sta = sta->next) {
84 : const u8 *p2p_dev_addr;
85 :
86 7 : if (sta->p2p_ie == NULL)
87 0 : continue;
88 :
89 7 : p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie);
90 7 : if (p2p_dev_addr == NULL)
91 0 : continue;
92 :
93 7 : if (os_memcmp(p2p_dev_addr, addr, ETH_ALEN) == 0)
94 5 : return sta;
95 : }
96 :
97 0 : return NULL;
98 : }
99 : #endif /* CONFIG_P2P */
100 :
101 :
102 4517 : static void ap_sta_list_del(struct hostapd_data *hapd, struct sta_info *sta)
103 : {
104 : struct sta_info *tmp;
105 :
106 4517 : if (hapd->sta_list == sta) {
107 4150 : hapd->sta_list = sta->next;
108 8667 : return;
109 : }
110 :
111 367 : tmp = hapd->sta_list;
112 900 : while (tmp != NULL && tmp->next != sta)
113 166 : tmp = tmp->next;
114 367 : if (tmp == NULL) {
115 0 : wpa_printf(MSG_DEBUG, "Could not remove STA " MACSTR " from "
116 0 : "list.", MAC2STR(sta->addr));
117 : } else
118 367 : tmp->next = sta->next;
119 : }
120 :
121 :
122 4517 : void ap_sta_hash_add(struct hostapd_data *hapd, struct sta_info *sta)
123 : {
124 4517 : sta->hnext = hapd->sta_hash[STA_HASH(sta->addr)];
125 4517 : hapd->sta_hash[STA_HASH(sta->addr)] = sta;
126 4517 : }
127 :
128 :
129 4517 : static void ap_sta_hash_del(struct hostapd_data *hapd, struct sta_info *sta)
130 : {
131 : struct sta_info *s;
132 :
133 4517 : s = hapd->sta_hash[STA_HASH(sta->addr)];
134 4517 : if (s == NULL) return;
135 4517 : if (os_memcmp(s->addr, sta->addr, 6) == 0) {
136 4150 : hapd->sta_hash[STA_HASH(sta->addr)] = s->hnext;
137 4150 : return;
138 : }
139 :
140 1433 : while (s->hnext != NULL &&
141 533 : os_memcmp(s->hnext->addr, sta->addr, ETH_ALEN) != 0)
142 166 : s = s->hnext;
143 367 : if (s->hnext != NULL)
144 367 : s->hnext = s->hnext->hnext;
145 : else
146 0 : wpa_printf(MSG_DEBUG, "AP: could not remove STA " MACSTR
147 0 : " from hash table", MAC2STR(sta->addr));
148 : }
149 :
150 :
151 4838 : void ap_sta_ip6addr_del(struct hostapd_data *hapd, struct sta_info *sta)
152 : {
153 4838 : sta_ip6addr_del(hapd, sta);
154 4838 : }
155 :
156 :
157 4517 : void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta)
158 : {
159 4517 : int set_beacon = 0;
160 :
161 4517 : accounting_sta_stop(hapd, sta);
162 :
163 : /* just in case */
164 4517 : ap_sta_set_authorized(hapd, sta, 0);
165 :
166 4517 : if (sta->flags & WLAN_STA_WDS)
167 1 : hostapd_set_wds_sta(hapd, NULL, sta->addr, sta->aid, 0);
168 :
169 4517 : if (sta->ipaddr)
170 5 : hostapd_drv_br_delete_ip_neigh(hapd, 4, (u8 *) &sta->ipaddr);
171 4517 : ap_sta_ip6addr_del(hapd, sta);
172 :
173 8583 : if (!hapd->iface->driver_ap_teardown &&
174 4066 : !(sta->flags & WLAN_STA_PREAUTH)) {
175 4059 : hostapd_drv_sta_remove(hapd, sta->addr);
176 4059 : sta->added_unassoc = 0;
177 : }
178 :
179 4517 : ap_sta_hash_del(hapd, sta);
180 4517 : ap_sta_list_del(hapd, sta);
181 :
182 4517 : if (sta->aid > 0)
183 8928 : hapd->sta_aid[(sta->aid - 1) / 32] &=
184 4464 : ~BIT((sta->aid - 1) % 32);
185 :
186 4517 : hapd->num_sta--;
187 4517 : if (sta->nonerp_set) {
188 0 : sta->nonerp_set = 0;
189 0 : hapd->iface->num_sta_non_erp--;
190 0 : if (hapd->iface->num_sta_non_erp == 0)
191 0 : set_beacon++;
192 : }
193 :
194 4517 : if (sta->no_short_slot_time_set) {
195 210 : sta->no_short_slot_time_set = 0;
196 210 : hapd->iface->num_sta_no_short_slot_time--;
197 210 : if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
198 0 : && hapd->iface->num_sta_no_short_slot_time == 0)
199 0 : set_beacon++;
200 : }
201 :
202 4517 : if (sta->no_short_preamble_set) {
203 210 : sta->no_short_preamble_set = 0;
204 210 : hapd->iface->num_sta_no_short_preamble--;
205 210 : if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
206 0 : && hapd->iface->num_sta_no_short_preamble == 0)
207 0 : set_beacon++;
208 : }
209 :
210 4517 : if (sta->no_ht_gf_set) {
211 0 : sta->no_ht_gf_set = 0;
212 0 : hapd->iface->num_sta_ht_no_gf--;
213 : }
214 :
215 4517 : if (sta->no_ht_set) {
216 56 : sta->no_ht_set = 0;
217 56 : hapd->iface->num_sta_no_ht--;
218 : }
219 :
220 4517 : if (sta->ht_20mhz_set) {
221 4208 : sta->ht_20mhz_set = 0;
222 4208 : hapd->iface->num_sta_ht_20mhz--;
223 : }
224 :
225 : #ifdef CONFIG_TAXONOMY
226 3800 : wpabuf_free(sta->probe_ie_taxonomy);
227 3800 : sta->probe_ie_taxonomy = NULL;
228 3800 : wpabuf_free(sta->assoc_ie_taxonomy);
229 3800 : sta->assoc_ie_taxonomy = NULL;
230 : #endif /* CONFIG_TAXONOMY */
231 :
232 : #ifdef CONFIG_IEEE80211N
233 4517 : ht40_intolerant_remove(hapd->iface, sta);
234 : #endif /* CONFIG_IEEE80211N */
235 :
236 : #ifdef CONFIG_P2P
237 717 : if (sta->no_p2p_set) {
238 49 : sta->no_p2p_set = 0;
239 49 : hapd->num_sta_no_p2p--;
240 49 : if (hapd->num_sta_no_p2p == 0)
241 44 : hostapd_p2p_non_p2p_sta_disconnected(hapd);
242 : }
243 : #endif /* CONFIG_P2P */
244 :
245 : #if defined(NEED_AP_MLME) && defined(CONFIG_IEEE80211N)
246 4517 : if (hostapd_ht_operation_update(hapd->iface) > 0)
247 39 : set_beacon++;
248 : #endif /* NEED_AP_MLME && CONFIG_IEEE80211N */
249 :
250 : #ifdef CONFIG_MESH
251 717 : if (hapd->mesh_sta_free_cb)
252 151 : hapd->mesh_sta_free_cb(hapd, sta);
253 : #endif /* CONFIG_MESH */
254 :
255 4517 : if (set_beacon)
256 39 : ieee802_11_set_beacons(hapd->iface);
257 :
258 27102 : wpa_printf(MSG_DEBUG, "%s: cancel ap_handle_timer for " MACSTR,
259 27102 : __func__, MAC2STR(sta->addr));
260 4517 : eloop_cancel_timeout(ap_handle_timer, hapd, sta);
261 4517 : eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
262 4517 : eloop_cancel_timeout(ap_handle_session_warning_timer, hapd, sta);
263 4517 : ap_sta_clear_disconnect_timeouts(hapd, sta);
264 4517 : sae_clear_retransmit_timer(hapd, sta);
265 :
266 4517 : ieee802_1x_free_station(hapd, sta);
267 4517 : wpa_auth_sta_deinit(sta->wpa_sm);
268 4517 : rsn_preauth_free_station(hapd, sta);
269 : #ifndef CONFIG_NO_RADIUS
270 3800 : if (hapd->radius)
271 3799 : radius_client_flush_auth(hapd->radius, sta->addr);
272 : #endif /* CONFIG_NO_RADIUS */
273 :
274 : #ifndef CONFIG_NO_VLAN
275 : /*
276 : * sta->wpa_sm->group needs to be released before so that
277 : * vlan_remove_dynamic() can check that no stations are left on the
278 : * AP_VLAN netdev.
279 : */
280 3800 : if (sta->vlan_id)
281 38 : vlan_remove_dynamic(hapd, sta->vlan_id);
282 3800 : if (sta->vlan_id_bound) {
283 : /*
284 : * Need to remove the STA entry before potentially removing the
285 : * VLAN.
286 : */
287 38 : if (hapd->iface->driver_ap_teardown &&
288 4 : !(sta->flags & WLAN_STA_PREAUTH)) {
289 4 : hostapd_drv_sta_remove(hapd, sta->addr);
290 4 : sta->added_unassoc = 0;
291 : }
292 34 : vlan_remove_dynamic(hapd, sta->vlan_id_bound);
293 : }
294 : #endif /* CONFIG_NO_VLAN */
295 :
296 4517 : os_free(sta->challenge);
297 :
298 : #ifdef CONFIG_IEEE80211W
299 4517 : os_free(sta->sa_query_trans_id);
300 4517 : eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
301 : #endif /* CONFIG_IEEE80211W */
302 :
303 : #ifdef CONFIG_P2P
304 717 : p2p_group_notif_disassoc(hapd->p2p_group, sta->addr);
305 : #endif /* CONFIG_P2P */
306 :
307 : #ifdef CONFIG_INTERWORKING
308 4517 : if (sta->gas_dialog) {
309 : int i;
310 27 : for (i = 0; i < GAS_DIALOG_MAX; i++)
311 24 : gas_serv_dialog_clear(&sta->gas_dialog[i]);
312 3 : os_free(sta->gas_dialog);
313 : }
314 : #endif /* CONFIG_INTERWORKING */
315 :
316 4517 : wpabuf_free(sta->wps_ie);
317 4517 : wpabuf_free(sta->p2p_ie);
318 4517 : wpabuf_free(sta->hs20_ie);
319 : #ifdef CONFIG_FST
320 4517 : wpabuf_free(sta->mb_ies);
321 : #endif /* CONFIG_FST */
322 :
323 4517 : os_free(sta->ht_capabilities);
324 4517 : os_free(sta->vht_capabilities);
325 4517 : hostapd_free_psk_list(sta->psk);
326 4517 : os_free(sta->identity);
327 4517 : os_free(sta->radius_cui);
328 4517 : os_free(sta->remediation_url);
329 4517 : wpabuf_free(sta->hs20_deauth_req);
330 4517 : os_free(sta->hs20_session_info_url);
331 :
332 : #ifdef CONFIG_SAE
333 4517 : sae_clear_data(sta->sae);
334 4517 : os_free(sta->sae);
335 : #endif /* CONFIG_SAE */
336 :
337 4517 : mbo_ap_sta_free(sta);
338 4517 : os_free(sta->supp_op_classes);
339 :
340 4517 : os_free(sta);
341 4517 : }
342 :
343 :
344 8018 : void hostapd_free_stas(struct hostapd_data *hapd)
345 : {
346 : struct sta_info *sta, *prev;
347 :
348 8018 : sta = hapd->sta_list;
349 :
350 16617 : while (sta) {
351 581 : prev = sta;
352 581 : if (sta->flags & WLAN_STA_AUTH) {
353 373 : mlme_deauthenticate_indication(
354 : hapd, sta, WLAN_REASON_UNSPECIFIED);
355 : }
356 581 : sta = sta->next;
357 3486 : wpa_printf(MSG_DEBUG, "Removing station " MACSTR,
358 3486 : MAC2STR(prev->addr));
359 581 : ap_free_sta(hapd, prev);
360 : }
361 8018 : }
362 :
363 :
364 : /**
365 : * ap_handle_timer - Per STA timer handler
366 : * @eloop_ctx: struct hostapd_data *
367 : * @timeout_ctx: struct sta_info *
368 : *
369 : * This function is called to check station activity and to remove inactive
370 : * stations.
371 : */
372 15 : void ap_handle_timer(void *eloop_ctx, void *timeout_ctx)
373 : {
374 15 : struct hostapd_data *hapd = eloop_ctx;
375 15 : struct sta_info *sta = timeout_ctx;
376 15 : unsigned long next_time = 0;
377 : int reason;
378 :
379 120 : wpa_printf(MSG_DEBUG, "%s: %s: " MACSTR " flags=0x%x timeout_next=%d",
380 105 : hapd->conf->iface, __func__, MAC2STR(sta->addr), sta->flags,
381 15 : sta->timeout_next);
382 15 : if (sta->timeout_next == STA_REMOVE) {
383 4 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
384 : HOSTAPD_LEVEL_INFO, "deauthenticated due to "
385 : "local deauth request");
386 4 : ap_free_sta(hapd, sta);
387 4 : return;
388 : }
389 :
390 21 : if ((sta->flags & WLAN_STA_ASSOC) &&
391 14 : (sta->timeout_next == STA_NULLFUNC ||
392 4 : sta->timeout_next == STA_DISASSOC)) {
393 : int inactive_sec;
394 : /*
395 : * Add random value to timeout so that we don't end up bouncing
396 : * all stations at the same time if we have lots of associated
397 : * stations that are idle (but keep re-associating).
398 : */
399 7 : int fuzz = os_random() % 20;
400 7 : inactive_sec = hostapd_drv_get_inact_sec(hapd, sta->addr);
401 7 : if (inactive_sec == -1) {
402 0 : wpa_msg(hapd->msg_ctx, MSG_DEBUG,
403 : "Check inactivity: Could not "
404 : "get station info from kernel driver for "
405 0 : MACSTR, MAC2STR(sta->addr));
406 : /*
407 : * The driver may not support this functionality.
408 : * Anyway, try again after the next inactivity timeout,
409 : * but do not disconnect the station now.
410 : */
411 0 : next_time = hapd->conf->ap_max_inactivity + fuzz;
412 7 : } else if (inactive_sec == -ENOENT) {
413 0 : wpa_msg(hapd->msg_ctx, MSG_DEBUG,
414 : "Station " MACSTR " has lost its driver entry",
415 0 : MAC2STR(sta->addr));
416 :
417 : /* Avoid sending client probe on removed client */
418 0 : sta->timeout_next = STA_DISASSOC;
419 0 : goto skip_poll;
420 7 : } else if (inactive_sec < hapd->conf->ap_max_inactivity) {
421 : /* station activity detected; reset timeout state */
422 18 : wpa_msg(hapd->msg_ctx, MSG_DEBUG,
423 : "Station " MACSTR " has been active %is ago",
424 18 : MAC2STR(sta->addr), inactive_sec);
425 3 : sta->timeout_next = STA_NULLFUNC;
426 3 : next_time = hapd->conf->ap_max_inactivity + fuzz -
427 : inactive_sec;
428 : } else {
429 28 : wpa_msg(hapd->msg_ctx, MSG_DEBUG,
430 : "Station " MACSTR " has been "
431 : "inactive too long: %d sec, max allowed: %d",
432 24 : MAC2STR(sta->addr), inactive_sec,
433 4 : hapd->conf->ap_max_inactivity);
434 :
435 4 : if (hapd->conf->skip_inactivity_poll)
436 1 : sta->timeout_next = STA_DISASSOC;
437 : }
438 : }
439 :
440 21 : if ((sta->flags & WLAN_STA_ASSOC) &&
441 12 : sta->timeout_next == STA_DISASSOC &&
442 3 : !(sta->flags & WLAN_STA_PENDING_POLL) &&
443 1 : !hapd->conf->skip_inactivity_poll) {
444 0 : wpa_msg(hapd->msg_ctx, MSG_DEBUG, "Station " MACSTR
445 0 : " has ACKed data poll", MAC2STR(sta->addr));
446 : /* data nullfunc frame poll did not produce TX errors; assume
447 : * station ACKed it */
448 0 : sta->timeout_next = STA_NULLFUNC;
449 0 : next_time = hapd->conf->ap_max_inactivity;
450 : }
451 :
452 : skip_poll:
453 11 : if (next_time) {
454 18 : wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
455 : "for " MACSTR " (%lu seconds)",
456 18 : __func__, MAC2STR(sta->addr), next_time);
457 3 : eloop_register_timeout(next_time, 0, ap_handle_timer, hapd,
458 : sta);
459 3 : return;
460 : }
461 :
462 10 : if (sta->timeout_next == STA_NULLFUNC &&
463 2 : (sta->flags & WLAN_STA_ASSOC)) {
464 2 : wpa_printf(MSG_DEBUG, " Polling STA");
465 2 : sta->flags |= WLAN_STA_PENDING_POLL;
466 2 : hostapd_drv_poll_client(hapd, hapd->own_addr, sta->addr,
467 2 : sta->flags & WLAN_STA_WMM);
468 6 : } else if (sta->timeout_next != STA_REMOVE) {
469 6 : int deauth = sta->timeout_next == STA_DEAUTH;
470 :
471 6 : wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
472 : "Timeout, sending %s info to STA " MACSTR,
473 : deauth ? "deauthentication" : "disassociation",
474 : MAC2STR(sta->addr));
475 :
476 6 : if (deauth) {
477 1 : hostapd_drv_sta_deauth(
478 1 : hapd, sta->addr,
479 : WLAN_REASON_PREV_AUTH_NOT_VALID);
480 : } else {
481 10 : reason = (sta->timeout_next == STA_DISASSOC) ?
482 5 : WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY :
483 : WLAN_REASON_PREV_AUTH_NOT_VALID;
484 :
485 5 : hostapd_drv_sta_disassoc(hapd, sta->addr, reason);
486 : }
487 : }
488 :
489 8 : switch (sta->timeout_next) {
490 : case STA_NULLFUNC:
491 2 : sta->timeout_next = STA_DISASSOC;
492 12 : wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
493 : "for " MACSTR " (%d seconds - AP_DISASSOC_DELAY)",
494 12 : __func__, MAC2STR(sta->addr), AP_DISASSOC_DELAY);
495 2 : eloop_register_timeout(AP_DISASSOC_DELAY, 0, ap_handle_timer,
496 : hapd, sta);
497 2 : break;
498 : case STA_DISASSOC:
499 : case STA_DISASSOC_FROM_CLI:
500 5 : ap_sta_set_authorized(hapd, sta, 0);
501 5 : sta->flags &= ~WLAN_STA_ASSOC;
502 5 : ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
503 5 : if (!sta->acct_terminate_cause)
504 5 : sta->acct_terminate_cause =
505 : RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
506 5 : accounting_sta_stop(hapd, sta);
507 5 : ieee802_1x_free_station(hapd, sta);
508 5 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
509 : HOSTAPD_LEVEL_INFO, "disassociated due to "
510 : "inactivity");
511 10 : reason = (sta->timeout_next == STA_DISASSOC) ?
512 5 : WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY :
513 : WLAN_REASON_PREV_AUTH_NOT_VALID;
514 5 : sta->timeout_next = STA_DEAUTH;
515 30 : wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
516 : "for " MACSTR " (%d seconds - AP_DEAUTH_DELAY)",
517 30 : __func__, MAC2STR(sta->addr), AP_DEAUTH_DELAY);
518 5 : eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer,
519 : hapd, sta);
520 5 : mlme_disassociate_indication(hapd, sta, reason);
521 5 : break;
522 : case STA_DEAUTH:
523 : case STA_REMOVE:
524 1 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
525 : HOSTAPD_LEVEL_INFO, "deauthenticated due to "
526 : "inactivity (timer DEAUTH/REMOVE)");
527 1 : if (!sta->acct_terminate_cause)
528 0 : sta->acct_terminate_cause =
529 : RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
530 1 : mlme_deauthenticate_indication(
531 : hapd, sta,
532 : WLAN_REASON_PREV_AUTH_NOT_VALID);
533 1 : ap_free_sta(hapd, sta);
534 1 : break;
535 : }
536 : }
537 :
538 :
539 4 : static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx)
540 : {
541 4 : struct hostapd_data *hapd = eloop_ctx;
542 4 : struct sta_info *sta = timeout_ctx;
543 :
544 28 : wpa_printf(MSG_DEBUG, "%s: Session timer for STA " MACSTR,
545 28 : hapd->conf->iface, MAC2STR(sta->addr));
546 4 : if (!(sta->flags & WLAN_STA_AUTH)) {
547 0 : if (sta->flags & WLAN_STA_GAS) {
548 0 : wpa_printf(MSG_DEBUG, "GAS: Remove temporary STA "
549 0 : "entry " MACSTR, MAC2STR(sta->addr));
550 0 : ap_free_sta(hapd, sta);
551 : }
552 4 : return;
553 : }
554 :
555 4 : hostapd_drv_sta_deauth(hapd, sta->addr,
556 : WLAN_REASON_PREV_AUTH_NOT_VALID);
557 4 : mlme_deauthenticate_indication(hapd, sta,
558 : WLAN_REASON_PREV_AUTH_NOT_VALID);
559 4 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
560 : HOSTAPD_LEVEL_INFO, "deauthenticated due to "
561 : "session timeout");
562 4 : sta->acct_terminate_cause =
563 : RADIUS_ACCT_TERMINATE_CAUSE_SESSION_TIMEOUT;
564 4 : ap_free_sta(hapd, sta);
565 : }
566 :
567 :
568 174 : void ap_sta_replenish_timeout(struct hostapd_data *hapd, struct sta_info *sta,
569 : u32 session_timeout)
570 : {
571 174 : if (eloop_replenish_timeout(session_timeout, 0,
572 : ap_handle_session_timer, hapd, sta) == 1) {
573 167 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
574 : HOSTAPD_LEVEL_DEBUG, "setting session timeout "
575 : "to %d seconds", session_timeout);
576 : }
577 174 : }
578 :
579 :
580 29 : void ap_sta_session_timeout(struct hostapd_data *hapd, struct sta_info *sta,
581 : u32 session_timeout)
582 : {
583 29 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
584 : HOSTAPD_LEVEL_DEBUG, "setting session timeout to %d "
585 : "seconds", session_timeout);
586 29 : eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
587 29 : eloop_register_timeout(session_timeout, 0, ap_handle_session_timer,
588 : hapd, sta);
589 29 : }
590 :
591 :
592 5241 : void ap_sta_no_session_timeout(struct hostapd_data *hapd, struct sta_info *sta)
593 : {
594 5241 : eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
595 5241 : }
596 :
597 :
598 1 : static void ap_handle_session_warning_timer(void *eloop_ctx, void *timeout_ctx)
599 : {
600 : #ifdef CONFIG_WNM
601 1 : struct hostapd_data *hapd = eloop_ctx;
602 1 : struct sta_info *sta = timeout_ctx;
603 :
604 7 : wpa_printf(MSG_DEBUG, "%s: WNM: Session warning time reached for "
605 7 : MACSTR, hapd->conf->iface, MAC2STR(sta->addr));
606 1 : if (sta->hs20_session_info_url == NULL)
607 1 : return;
608 :
609 1 : wnm_send_ess_disassoc_imminent(hapd, sta, sta->hs20_session_info_url,
610 : sta->hs20_disassoc_timer);
611 : #endif /* CONFIG_WNM */
612 : }
613 :
614 :
615 1 : void ap_sta_session_warning_timeout(struct hostapd_data *hapd,
616 : struct sta_info *sta, int warning_time)
617 : {
618 1 : eloop_cancel_timeout(ap_handle_session_warning_timer, hapd, sta);
619 1 : eloop_register_timeout(warning_time, 0, ap_handle_session_warning_timer,
620 : hapd, sta);
621 1 : }
622 :
623 :
624 4627 : struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr)
625 : {
626 : struct sta_info *sta;
627 :
628 4627 : sta = ap_get_sta(hapd, addr);
629 4627 : if (sta)
630 103 : return sta;
631 :
632 4524 : wpa_printf(MSG_DEBUG, " New STA");
633 4524 : if (hapd->num_sta >= hapd->conf->max_num_sta) {
634 : /* FIX: might try to remove some old STAs first? */
635 4 : wpa_printf(MSG_DEBUG, "no more room for new STAs (%d/%d)",
636 4 : hapd->num_sta, hapd->conf->max_num_sta);
637 4 : return NULL;
638 : }
639 :
640 4520 : sta = os_zalloc(sizeof(struct sta_info));
641 4520 : if (sta == NULL) {
642 3 : wpa_printf(MSG_ERROR, "malloc failed");
643 3 : return NULL;
644 : }
645 4517 : sta->acct_interim_interval = hapd->conf->acct_interim_interval;
646 4517 : if (accounting_sta_get_id(hapd, sta) < 0) {
647 0 : os_free(sta);
648 0 : return NULL;
649 : }
650 :
651 4517 : if (!(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER)) {
652 31619 : wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
653 : "for " MACSTR " (%d seconds - ap_max_inactivity)",
654 27102 : __func__, MAC2STR(addr),
655 4517 : hapd->conf->ap_max_inactivity);
656 4517 : eloop_register_timeout(hapd->conf->ap_max_inactivity, 0,
657 : ap_handle_timer, hapd, sta);
658 : }
659 :
660 : /* initialize STA info data */
661 4517 : os_memcpy(sta->addr, addr, ETH_ALEN);
662 4517 : sta->next = hapd->sta_list;
663 4517 : hapd->sta_list = sta;
664 4517 : hapd->num_sta++;
665 4517 : ap_sta_hash_add(hapd, sta);
666 4517 : ap_sta_remove_in_other_bss(hapd, sta);
667 4517 : sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
668 4517 : dl_list_init(&sta->ip6addr);
669 :
670 : #ifdef CONFIG_TAXONOMY
671 3800 : sta_track_claim_taxonomy_info(hapd->iface, addr,
672 : &sta->probe_ie_taxonomy);
673 : #endif /* CONFIG_TAXONOMY */
674 :
675 4517 : return sta;
676 : }
677 :
678 :
679 320 : static int ap_sta_remove(struct hostapd_data *hapd, struct sta_info *sta)
680 : {
681 320 : ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
682 :
683 320 : if (sta->ipaddr)
684 0 : hostapd_drv_br_delete_ip_neigh(hapd, 4, (u8 *) &sta->ipaddr);
685 320 : ap_sta_ip6addr_del(hapd, sta);
686 :
687 2240 : wpa_printf(MSG_DEBUG, "%s: Removing STA " MACSTR " from kernel driver",
688 2240 : hapd->conf->iface, MAC2STR(sta->addr));
689 320 : if (hostapd_drv_sta_remove(hapd, sta->addr) &&
690 0 : sta->flags & WLAN_STA_ASSOC) {
691 0 : wpa_printf(MSG_DEBUG, "%s: Could not remove station " MACSTR
692 : " from kernel driver",
693 0 : hapd->conf->iface, MAC2STR(sta->addr));
694 0 : return -1;
695 : }
696 320 : sta->added_unassoc = 0;
697 320 : return 0;
698 : }
699 :
700 :
701 4517 : static void ap_sta_remove_in_other_bss(struct hostapd_data *hapd,
702 : struct sta_info *sta)
703 : {
704 4517 : struct hostapd_iface *iface = hapd->iface;
705 : size_t i;
706 :
707 9266 : for (i = 0; i < iface->num_bss; i++) {
708 4749 : struct hostapd_data *bss = iface->bss[i];
709 : struct sta_info *sta2;
710 : /* bss should always be set during operation, but it may be
711 : * NULL during reconfiguration. Assume the STA is not
712 : * associated to another BSS in that case to avoid NULL pointer
713 : * dereferences. */
714 4749 : if (bss == hapd || bss == NULL)
715 4517 : continue;
716 232 : sta2 = ap_get_sta(bss, sta->addr);
717 232 : if (!sta2)
718 232 : continue;
719 :
720 0 : wpa_printf(MSG_DEBUG, "%s: disconnect old STA " MACSTR
721 : " association from another BSS %s",
722 0 : hapd->conf->iface, MAC2STR(sta2->addr),
723 0 : bss->conf->iface);
724 0 : ap_sta_disconnect(bss, sta2, sta2->addr,
725 : WLAN_REASON_PREV_AUTH_NOT_VALID);
726 : }
727 4517 : }
728 :
729 :
730 12 : static void ap_sta_disassoc_cb_timeout(void *eloop_ctx, void *timeout_ctx)
731 : {
732 12 : struct hostapd_data *hapd = eloop_ctx;
733 12 : struct sta_info *sta = timeout_ctx;
734 :
735 84 : wpa_printf(MSG_DEBUG, "%s: Disassociation callback for STA " MACSTR,
736 84 : hapd->conf->iface, MAC2STR(sta->addr));
737 12 : ap_sta_remove(hapd, sta);
738 12 : mlme_disassociate_indication(hapd, sta, sta->disassoc_reason);
739 12 : }
740 :
741 :
742 296 : void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta,
743 : u16 reason)
744 : {
745 2072 : wpa_printf(MSG_DEBUG, "%s: disassociate STA " MACSTR,
746 2072 : hapd->conf->iface, MAC2STR(sta->addr));
747 296 : sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
748 296 : sta->flags &= ~(WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK);
749 296 : ap_sta_set_authorized(hapd, sta, 0);
750 296 : sta->timeout_next = STA_DEAUTH;
751 1776 : wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
752 : "for " MACSTR " (%d seconds - "
753 : "AP_MAX_INACTIVITY_AFTER_DISASSOC)",
754 1776 : __func__, MAC2STR(sta->addr),
755 : AP_MAX_INACTIVITY_AFTER_DISASSOC);
756 296 : eloop_cancel_timeout(ap_handle_timer, hapd, sta);
757 296 : eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DISASSOC, 0,
758 : ap_handle_timer, hapd, sta);
759 296 : accounting_sta_stop(hapd, sta);
760 296 : ieee802_1x_free_station(hapd, sta);
761 :
762 296 : sta->disassoc_reason = reason;
763 296 : sta->flags |= WLAN_STA_PENDING_DISASSOC_CB;
764 296 : eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
765 296 : eloop_register_timeout(hapd->iface->drv_flags &
766 : WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
767 : ap_sta_disassoc_cb_timeout, hapd, sta);
768 296 : }
769 :
770 :
771 308 : static void ap_sta_deauth_cb_timeout(void *eloop_ctx, void *timeout_ctx)
772 : {
773 308 : struct hostapd_data *hapd = eloop_ctx;
774 308 : struct sta_info *sta = timeout_ctx;
775 :
776 2156 : wpa_printf(MSG_DEBUG, "%s: Deauthentication callback for STA " MACSTR,
777 2156 : hapd->conf->iface, MAC2STR(sta->addr));
778 308 : ap_sta_remove(hapd, sta);
779 308 : mlme_deauthenticate_indication(hapd, sta, sta->deauth_reason);
780 308 : }
781 :
782 :
783 25 : void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
784 : u16 reason)
785 : {
786 175 : wpa_printf(MSG_DEBUG, "%s: deauthenticate STA " MACSTR,
787 175 : hapd->conf->iface, MAC2STR(sta->addr));
788 25 : sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
789 25 : sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK);
790 25 : ap_sta_set_authorized(hapd, sta, 0);
791 25 : sta->timeout_next = STA_REMOVE;
792 150 : wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
793 : "for " MACSTR " (%d seconds - "
794 : "AP_MAX_INACTIVITY_AFTER_DEAUTH)",
795 150 : __func__, MAC2STR(sta->addr),
796 : AP_MAX_INACTIVITY_AFTER_DEAUTH);
797 25 : eloop_cancel_timeout(ap_handle_timer, hapd, sta);
798 25 : eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
799 : ap_handle_timer, hapd, sta);
800 25 : accounting_sta_stop(hapd, sta);
801 25 : ieee802_1x_free_station(hapd, sta);
802 :
803 25 : sta->deauth_reason = reason;
804 25 : sta->flags |= WLAN_STA_PENDING_DEAUTH_CB;
805 25 : eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
806 25 : eloop_register_timeout(hapd->iface->drv_flags &
807 : WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
808 : ap_sta_deauth_cb_timeout, hapd, sta);
809 25 : }
810 :
811 :
812 : #ifdef CONFIG_WPS
813 6 : int ap_sta_wps_cancel(struct hostapd_data *hapd,
814 : struct sta_info *sta, void *ctx)
815 : {
816 6 : if (sta && (sta->flags & WLAN_STA_WPS)) {
817 1 : ap_sta_deauthenticate(hapd, sta,
818 : WLAN_REASON_PREV_AUTH_NOT_VALID);
819 6 : wpa_printf(MSG_DEBUG, "WPS: %s: Deauth sta=" MACSTR,
820 6 : __func__, MAC2STR(sta->addr));
821 1 : return 1;
822 : }
823 :
824 5 : return 0;
825 : }
826 : #endif /* CONFIG_WPS */
827 :
828 :
829 24 : static int ap_sta_get_free_vlan_id(struct hostapd_data *hapd)
830 : {
831 : struct hostapd_vlan *vlan;
832 24 : int vlan_id = MAX_VLAN_ID + 2;
833 :
834 : retry:
835 66 : for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
836 42 : if (vlan->vlan_id == vlan_id) {
837 5 : vlan_id++;
838 5 : goto retry;
839 : }
840 : }
841 24 : return vlan_id;
842 : }
843 :
844 :
845 6397 : int ap_sta_set_vlan(struct hostapd_data *hapd, struct sta_info *sta,
846 : struct vlan_description *vlan_desc)
847 : {
848 6397 : struct hostapd_vlan *vlan = NULL, *wildcard_vlan = NULL;
849 6397 : int old_vlan_id, vlan_id = 0, ret = 0;
850 :
851 6397 : if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_DISABLED)
852 6325 : vlan_desc = NULL;
853 :
854 : /* Check if there is something to do */
855 6397 : if (hapd->conf->ssid.per_sta_vif && !sta->vlan_id) {
856 : /* This sta is lacking its own vif */
857 12705 : } else if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_DISABLED &&
858 12640 : !hapd->conf->ssid.per_sta_vif && sta->vlan_id) {
859 : /* sta->vlan_id needs to be reset */
860 6384 : } else if (!vlan_compare(vlan_desc, sta->vlan_desc)) {
861 6347 : return 0; /* nothing to change */
862 : }
863 :
864 : /* Now the real VLAN changed or the STA just needs its own vif */
865 50 : if (hapd->conf->ssid.per_sta_vif) {
866 : /* Assign a new vif, always */
867 : /* find a free vlan_id sufficiently big */
868 19 : vlan_id = ap_sta_get_free_vlan_id(hapd);
869 : /* Get wildcard VLAN */
870 25 : for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
871 25 : if (vlan->vlan_id == VLAN_ID_WILDCARD)
872 19 : break;
873 : }
874 19 : if (!vlan) {
875 0 : hostapd_logger(hapd, sta->addr,
876 : HOSTAPD_MODULE_IEEE80211,
877 : HOSTAPD_LEVEL_DEBUG,
878 : "per_sta_vif missing wildcard");
879 0 : vlan_id = 0;
880 0 : ret = -1;
881 0 : goto done;
882 : }
883 31 : } else if (vlan_desc && vlan_desc->notempty) {
884 73 : for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
885 47 : if (!vlan_compare(&vlan->vlan_desc, vlan_desc))
886 5 : break;
887 42 : if (vlan->vlan_id == VLAN_ID_WILDCARD)
888 31 : wildcard_vlan = vlan;
889 : }
890 31 : if (vlan) {
891 5 : vlan_id = vlan->vlan_id;
892 26 : } else if (wildcard_vlan) {
893 26 : vlan = wildcard_vlan;
894 26 : vlan_id = vlan_desc->untagged;
895 26 : if (vlan_desc->tagged[0]) {
896 : /* Tagged VLAN configuration */
897 5 : vlan_id = ap_sta_get_free_vlan_id(hapd);
898 : }
899 : } else {
900 0 : hostapd_logger(hapd, sta->addr,
901 : HOSTAPD_MODULE_IEEE80211,
902 : HOSTAPD_LEVEL_DEBUG,
903 : "missing vlan and wildcard for vlan=%d%s",
904 : vlan_desc->untagged,
905 0 : vlan_desc->tagged[0] ? "+" : "");
906 0 : vlan_id = 0;
907 0 : ret = -1;
908 0 : goto done;
909 : }
910 : }
911 :
912 50 : if (vlan && vlan->vlan_id == VLAN_ID_WILDCARD) {
913 45 : vlan = vlan_add_dynamic(hapd, vlan, vlan_id, vlan_desc);
914 45 : if (vlan == NULL) {
915 0 : hostapd_logger(hapd, sta->addr,
916 : HOSTAPD_MODULE_IEEE80211,
917 : HOSTAPD_LEVEL_DEBUG,
918 : "could not add dynamic VLAN interface for vlan=%d%s",
919 : vlan_desc ? vlan_desc->untagged : -1,
920 0 : (vlan_desc && vlan_desc->tagged[0]) ?
921 : "+" : "");
922 0 : vlan_id = 0;
923 0 : ret = -1;
924 0 : goto done;
925 : }
926 :
927 45 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
928 : HOSTAPD_LEVEL_DEBUG,
929 : "added new dynamic VLAN interface '%s'",
930 45 : vlan->ifname);
931 5 : } else if (vlan && vlan->dynamic_vlan > 0) {
932 0 : vlan->dynamic_vlan++;
933 0 : hostapd_logger(hapd, sta->addr,
934 : HOSTAPD_MODULE_IEEE80211,
935 : HOSTAPD_LEVEL_DEBUG,
936 : "updated existing dynamic VLAN interface '%s'",
937 0 : vlan->ifname);
938 : }
939 : done:
940 50 : old_vlan_id = sta->vlan_id;
941 50 : sta->vlan_id = vlan_id;
942 50 : sta->vlan_desc = vlan ? &vlan->vlan_desc : NULL;
943 :
944 50 : if (vlan_id != old_vlan_id && old_vlan_id)
945 12 : vlan_remove_dynamic(hapd, old_vlan_id);
946 :
947 50 : return ret;
948 : }
949 :
950 :
951 5735 : int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta)
952 : {
953 : #ifndef CONFIG_NO_VLAN
954 : const char *iface;
955 5161 : struct hostapd_vlan *vlan = NULL;
956 : int ret;
957 5161 : int old_vlanid = sta->vlan_id_bound;
958 :
959 5161 : iface = hapd->conf->iface;
960 5161 : if (hapd->conf->ssid.vlan[0])
961 11 : iface = hapd->conf->ssid.vlan;
962 :
963 5161 : if (sta->vlan_id > 0) {
964 54 : for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
965 54 : if (vlan->vlan_id == sta->vlan_id)
966 50 : break;
967 : }
968 50 : if (vlan)
969 50 : iface = vlan->ifname;
970 : }
971 :
972 : /*
973 : * Do not increment ref counters if the VLAN ID remains same, but do
974 : * not skip hostapd_drv_set_sta_vlan() as hostapd_drv_sta_remove() might
975 : * have been called before.
976 : */
977 5161 : if (sta->vlan_id == old_vlanid)
978 5115 : goto skip_counting;
979 :
980 46 : if (sta->vlan_id > 0 && vlan == NULL) {
981 0 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
982 : HOSTAPD_LEVEL_DEBUG, "could not find VLAN for "
983 : "binding station to (vlan_id=%d)",
984 : sta->vlan_id);
985 0 : ret = -1;
986 0 : goto done;
987 46 : } else if (vlan && vlan->dynamic_vlan > 0) {
988 42 : vlan->dynamic_vlan++;
989 42 : hostapd_logger(hapd, sta->addr,
990 : HOSTAPD_MODULE_IEEE80211,
991 : HOSTAPD_LEVEL_DEBUG,
992 : "updated existing dynamic VLAN interface '%s'",
993 : iface);
994 : }
995 :
996 : /* ref counters have been increased, so mark the station */
997 46 : sta->vlan_id_bound = sta->vlan_id;
998 :
999 : skip_counting:
1000 5161 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1001 : HOSTAPD_LEVEL_DEBUG, "binding station to interface "
1002 : "'%s'", iface);
1003 :
1004 5161 : if (wpa_auth_sta_set_vlan(sta->wpa_sm, sta->vlan_id) < 0)
1005 0 : wpa_printf(MSG_INFO, "Failed to update VLAN-ID for WPA");
1006 :
1007 5161 : ret = hostapd_drv_set_sta_vlan(iface, hapd, sta->addr, sta->vlan_id);
1008 5161 : if (ret < 0) {
1009 0 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1010 : HOSTAPD_LEVEL_DEBUG, "could not bind the STA "
1011 : "entry to vlan_id=%d", sta->vlan_id);
1012 : }
1013 :
1014 : /* During 1x reauth, if the vlan id changes, then remove the old id. */
1015 5161 : if (old_vlanid > 0 && old_vlanid != sta->vlan_id)
1016 12 : vlan_remove_dynamic(hapd, old_vlanid);
1017 : done:
1018 :
1019 5161 : return ret;
1020 : #else /* CONFIG_NO_VLAN */
1021 574 : return 0;
1022 : #endif /* CONFIG_NO_VLAN */
1023 : }
1024 :
1025 :
1026 : #ifdef CONFIG_IEEE80211W
1027 :
1028 16 : int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta)
1029 : {
1030 : u32 tu;
1031 : struct os_reltime now, passed;
1032 16 : os_get_reltime(&now);
1033 16 : os_reltime_sub(&now, &sta->sa_query_start, &passed);
1034 16 : tu = (passed.sec * 1000000 + passed.usec) / 1024;
1035 16 : if (hapd->conf->assoc_sa_query_max_timeout < tu) {
1036 4 : hostapd_logger(hapd, sta->addr,
1037 : HOSTAPD_MODULE_IEEE80211,
1038 : HOSTAPD_LEVEL_DEBUG,
1039 : "association SA Query timed out");
1040 4 : sta->sa_query_timed_out = 1;
1041 4 : os_free(sta->sa_query_trans_id);
1042 4 : sta->sa_query_trans_id = NULL;
1043 4 : sta->sa_query_count = 0;
1044 4 : eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
1045 4 : return 1;
1046 : }
1047 :
1048 12 : return 0;
1049 : }
1050 :
1051 :
1052 20 : static void ap_sa_query_timer(void *eloop_ctx, void *timeout_ctx)
1053 : {
1054 20 : struct hostapd_data *hapd = eloop_ctx;
1055 20 : struct sta_info *sta = timeout_ctx;
1056 : unsigned int timeout, sec, usec;
1057 : u8 *trans_id, *nbuf;
1058 :
1059 160 : wpa_printf(MSG_DEBUG, "%s: SA Query timer for STA " MACSTR
1060 : " (count=%d)",
1061 140 : hapd->conf->iface, MAC2STR(sta->addr), sta->sa_query_count);
1062 :
1063 36 : if (sta->sa_query_count > 0 &&
1064 16 : ap_check_sa_query_timeout(hapd, sta))
1065 4 : return;
1066 :
1067 16 : nbuf = os_realloc_array(sta->sa_query_trans_id,
1068 16 : sta->sa_query_count + 1,
1069 : WLAN_SA_QUERY_TR_ID_LEN);
1070 16 : if (nbuf == NULL)
1071 0 : return;
1072 16 : if (sta->sa_query_count == 0) {
1073 : /* Starting a new SA Query procedure */
1074 4 : os_get_reltime(&sta->sa_query_start);
1075 : }
1076 16 : trans_id = nbuf + sta->sa_query_count * WLAN_SA_QUERY_TR_ID_LEN;
1077 16 : sta->sa_query_trans_id = nbuf;
1078 16 : sta->sa_query_count++;
1079 :
1080 16 : if (os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN) < 0) {
1081 : /*
1082 : * We don't really care which ID is used here, so simply
1083 : * hardcode this if the mostly theoretical os_get_random()
1084 : * failure happens.
1085 : */
1086 0 : trans_id[0] = 0x12;
1087 0 : trans_id[1] = 0x34;
1088 : }
1089 :
1090 16 : timeout = hapd->conf->assoc_sa_query_retry_timeout;
1091 16 : sec = ((timeout / 1000) * 1024) / 1000;
1092 16 : usec = (timeout % 1000) * 1024;
1093 16 : eloop_register_timeout(sec, usec, ap_sa_query_timer, hapd, sta);
1094 :
1095 16 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
1096 : HOSTAPD_LEVEL_DEBUG,
1097 : "association SA Query attempt %d", sta->sa_query_count);
1098 :
1099 16 : ieee802_11_send_sa_query_req(hapd, sta->addr, trans_id);
1100 : }
1101 :
1102 :
1103 4 : void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
1104 : {
1105 4 : ap_sa_query_timer(hapd, sta);
1106 4 : }
1107 :
1108 :
1109 0 : void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
1110 : {
1111 0 : eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
1112 0 : os_free(sta->sa_query_trans_id);
1113 0 : sta->sa_query_trans_id = NULL;
1114 0 : sta->sa_query_count = 0;
1115 0 : }
1116 :
1117 : #endif /* CONFIG_IEEE80211W */
1118 :
1119 :
1120 18596 : void ap_sta_set_authorized(struct hostapd_data *hapd, struct sta_info *sta,
1121 : int authorized)
1122 : {
1123 18596 : const u8 *dev_addr = NULL;
1124 : char buf[100];
1125 : #ifdef CONFIG_P2P
1126 : u8 addr[ETH_ALEN];
1127 : u8 ip_addr_buf[4];
1128 : #endif /* CONFIG_P2P */
1129 :
1130 18596 : if (!!authorized == !!(sta->flags & WLAN_STA_AUTHORIZED))
1131 31113 : return;
1132 :
1133 6079 : if (authorized)
1134 3048 : sta->flags |= WLAN_STA_AUTHORIZED;
1135 : else
1136 3031 : sta->flags &= ~WLAN_STA_AUTHORIZED;
1137 :
1138 : #ifdef CONFIG_P2P
1139 627 : if (hapd->p2p_group == NULL) {
1140 462 : if (sta->p2p_ie != NULL &&
1141 203 : p2p_parse_dev_addr_in_p2p_ie(sta->p2p_ie, addr) == 0)
1142 201 : dev_addr = addr;
1143 : } else
1144 368 : dev_addr = p2p_group_get_dev_addr(hapd->p2p_group, sta->addr);
1145 :
1146 627 : if (dev_addr)
1147 6648 : os_snprintf(buf, sizeof(buf), MACSTR " p2p_dev_addr=" MACSTR,
1148 6648 : MAC2STR(sta->addr), MAC2STR(dev_addr));
1149 : else
1150 : #endif /* CONFIG_P2P */
1151 5525 : os_snprintf(buf, sizeof(buf), MACSTR, MAC2STR(sta->addr));
1152 :
1153 6079 : if (hapd->sta_authorized_cb)
1154 1254 : hapd->sta_authorized_cb(hapd->sta_authorized_cb_ctx,
1155 627 : sta->addr, authorized, dev_addr);
1156 :
1157 6079 : if (authorized) {
1158 : char ip_addr[100];
1159 3048 : ip_addr[0] = '\0';
1160 : #ifdef CONFIG_P2P
1161 314 : if (wpa_auth_get_ip_addr(sta->wpa_sm, ip_addr_buf) == 0) {
1162 412 : os_snprintf(ip_addr, sizeof(ip_addr),
1163 : " ip_addr=%u.%u.%u.%u",
1164 206 : ip_addr_buf[0], ip_addr_buf[1],
1165 206 : ip_addr_buf[2], ip_addr_buf[3]);
1166 : }
1167 : #endif /* CONFIG_P2P */
1168 :
1169 3048 : wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_CONNECTED "%s%s",
1170 : buf, ip_addr);
1171 :
1172 3362 : if (hapd->msg_ctx_parent &&
1173 314 : hapd->msg_ctx_parent != hapd->msg_ctx)
1174 55 : wpa_msg_no_global(hapd->msg_ctx_parent, MSG_INFO,
1175 : AP_STA_CONNECTED "%s%s",
1176 : buf, ip_addr);
1177 : } else {
1178 3031 : wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_DISCONNECTED "%s", buf);
1179 :
1180 3344 : if (hapd->msg_ctx_parent &&
1181 313 : hapd->msg_ctx_parent != hapd->msg_ctx)
1182 55 : wpa_msg_no_global(hapd->msg_ctx_parent, MSG_INFO,
1183 : AP_STA_DISCONNECTED "%s", buf);
1184 : }
1185 :
1186 : #ifdef CONFIG_FST
1187 6079 : if (hapd->iface->fst) {
1188 493 : if (authorized)
1189 247 : fst_notify_peer_connected(hapd->iface->fst, sta->addr);
1190 : else
1191 246 : fst_notify_peer_disconnected(hapd->iface->fst,
1192 246 : sta->addr);
1193 : }
1194 : #endif /* CONFIG_FST */
1195 : }
1196 :
1197 :
1198 789 : void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta,
1199 : const u8 *addr, u16 reason)
1200 : {
1201 789 : if (sta)
1202 6088 : wpa_printf(MSG_DEBUG, "%s: %s STA " MACSTR " reason=%u",
1203 5327 : hapd->conf->iface, __func__, MAC2STR(sta->addr),
1204 : reason);
1205 28 : else if (addr)
1206 224 : wpa_printf(MSG_DEBUG, "%s: %s addr " MACSTR " reason=%u",
1207 196 : hapd->conf->iface, __func__, MAC2STR(addr),
1208 : reason);
1209 :
1210 789 : if (sta == NULL && addr)
1211 28 : sta = ap_get_sta(hapd, addr);
1212 :
1213 789 : if (addr)
1214 789 : hostapd_drv_sta_deauth(hapd, addr, reason);
1215 :
1216 789 : if (sta == NULL)
1217 789 : return;
1218 789 : ap_sta_set_authorized(hapd, sta, 0);
1219 789 : wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH);
1220 789 : ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
1221 789 : sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
1222 5523 : wpa_printf(MSG_DEBUG, "%s: %s: reschedule ap_handle_timer timeout "
1223 : "for " MACSTR " (%d seconds - "
1224 : "AP_MAX_INACTIVITY_AFTER_DEAUTH)",
1225 5523 : hapd->conf->iface, __func__, MAC2STR(sta->addr),
1226 : AP_MAX_INACTIVITY_AFTER_DEAUTH);
1227 789 : eloop_cancel_timeout(ap_handle_timer, hapd, sta);
1228 789 : eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
1229 : ap_handle_timer, hapd, sta);
1230 789 : sta->timeout_next = STA_REMOVE;
1231 :
1232 789 : sta->deauth_reason = reason;
1233 789 : sta->flags |= WLAN_STA_PENDING_DEAUTH_CB;
1234 789 : eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
1235 789 : eloop_register_timeout(hapd->iface->drv_flags &
1236 : WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
1237 : ap_sta_deauth_cb_timeout, hapd, sta);
1238 : }
1239 :
1240 :
1241 333 : void ap_sta_deauth_cb(struct hostapd_data *hapd, struct sta_info *sta)
1242 : {
1243 333 : if (!(sta->flags & WLAN_STA_PENDING_DEAUTH_CB)) {
1244 27 : wpa_printf(MSG_DEBUG, "Ignore deauth cb for test frame");
1245 360 : return;
1246 : }
1247 306 : sta->flags &= ~WLAN_STA_PENDING_DEAUTH_CB;
1248 306 : eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
1249 306 : ap_sta_deauth_cb_timeout(hapd, sta);
1250 : }
1251 :
1252 :
1253 28 : void ap_sta_disassoc_cb(struct hostapd_data *hapd, struct sta_info *sta)
1254 : {
1255 28 : if (!(sta->flags & WLAN_STA_PENDING_DISASSOC_CB)) {
1256 25 : wpa_printf(MSG_DEBUG, "Ignore disassoc cb for test frame");
1257 53 : return;
1258 : }
1259 3 : sta->flags &= ~WLAN_STA_PENDING_DISASSOC_CB;
1260 3 : eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
1261 3 : ap_sta_disassoc_cb_timeout(hapd, sta);
1262 : }
1263 :
1264 :
1265 18819 : void ap_sta_clear_disconnect_timeouts(struct hostapd_data *hapd,
1266 : struct sta_info *sta)
1267 : {
1268 18819 : if (eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta) > 0)
1269 3535 : wpa_printf(MSG_DEBUG,
1270 : "%s: Removed ap_sta_deauth_cb_timeout timeout for "
1271 : MACSTR,
1272 3535 : hapd->conf->iface, MAC2STR(sta->addr));
1273 18819 : if (eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta) > 0)
1274 1988 : wpa_printf(MSG_DEBUG,
1275 : "%s: Removed ap_sta_disassoc_cb_timeout timeout for "
1276 : MACSTR,
1277 1988 : hapd->conf->iface, MAC2STR(sta->addr));
1278 18819 : }
1279 :
1280 :
1281 221 : int ap_sta_flags_txt(u32 flags, char *buf, size_t buflen)
1282 : {
1283 : int res;
1284 :
1285 221 : buf[0] = '\0';
1286 3757 : res = os_snprintf(buf, buflen, "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
1287 221 : (flags & WLAN_STA_AUTH ? "[AUTH]" : ""),
1288 221 : (flags & WLAN_STA_ASSOC ? "[ASSOC]" : ""),
1289 221 : (flags & WLAN_STA_AUTHORIZED ? "[AUTHORIZED]" : ""),
1290 221 : (flags & WLAN_STA_PENDING_POLL ? "[PENDING_POLL" :
1291 : ""),
1292 221 : (flags & WLAN_STA_SHORT_PREAMBLE ?
1293 : "[SHORT_PREAMBLE]" : ""),
1294 221 : (flags & WLAN_STA_PREAUTH ? "[PREAUTH]" : ""),
1295 221 : (flags & WLAN_STA_WMM ? "[WMM]" : ""),
1296 221 : (flags & WLAN_STA_MFP ? "[MFP]" : ""),
1297 221 : (flags & WLAN_STA_WPS ? "[WPS]" : ""),
1298 221 : (flags & WLAN_STA_MAYBE_WPS ? "[MAYBE_WPS]" : ""),
1299 221 : (flags & WLAN_STA_WDS ? "[WDS]" : ""),
1300 221 : (flags & WLAN_STA_NONERP ? "[NonERP]" : ""),
1301 221 : (flags & WLAN_STA_WPS2 ? "[WPS2]" : ""),
1302 221 : (flags & WLAN_STA_GAS ? "[GAS]" : ""),
1303 221 : (flags & WLAN_STA_VHT ? "[VHT]" : ""),
1304 221 : (flags & WLAN_STA_VENDOR_VHT ? "[VENDOR_VHT]" : ""),
1305 221 : (flags & WLAN_STA_WNM_SLEEP_MODE ?
1306 : "[WNM_SLEEP_MODE]" : ""));
1307 221 : if (os_snprintf_error(buflen, res))
1308 0 : res = -1;
1309 :
1310 221 : return res;
1311 : }
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