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hostapd_driver_ops reduction: set_countermeasures
[thirdparty/hostap.git] / src / ap / sta_info.c
CommitLineData
6fc6879b
JM		 1/*
2 * hostapd / Station table
bdee6fce 3 * Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
6fc6879b
JM		 4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 *
9 * Alternatively, this software may be distributed under the terms of BSD
10 * license.
11 *
12 * See README and COPYING for more details.
13 */
14
6226e38d 15#include "utils/includes.h"
6fc6879b 16
6226e38d
JM		 17#include "utils/common.h"
18#include "utils/eloop.h"
81f4f619 19#include "common/ieee802_11_defs.h"
bdee6fce
JM		 20#include "radius/radius.h"
21#include "radius/radius_client.h"
22#include "drivers/driver.h"
8ccbe415 23#include "p2p/p2p.h"
6fc6879b 24#include "hostapd.h"
6fc6879b
JM		 25#include "accounting.h"
26#include "ieee802_1x.h"
27#include "ieee802_11.h"
6226e38d
JM		 28#include "wpa_auth.h"
29#include "preauth_auth.h"
30#include "ap_config.h"
6fc6879b 31#include "beacon.h"
6226e38d 32#include "ap_mlme.h"
6fc6879b 33#include "vlan_init.h"
aefb53bd 34#include "p2p_hostapd.h"
cee7d66b 35#include "ap_drv_ops.h"
6226e38d 36#include "sta_info.h"
6fc6879b 37
53f3d6f3
FF		 38static void ap_sta_remove_in_other_bss(struct hostapd_data *hapd,
39 struct sta_info *sta);
6fc6879b 40static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx);
5d22a1d5 41#ifdef CONFIG_IEEE80211W
93b76319 42static void ap_sa_query_timer(void *eloop_ctx, void *timeout_ctx);
5d22a1d5 43#endif /* CONFIG_IEEE80211W */
6fc6879b
JM		 44
45int ap_for_each_sta(struct hostapd_data *hapd,
46 int (*cb)(struct hostapd_data *hapd, struct sta_info *sta,
47 void *ctx),
48 void *ctx)
49{
50 struct sta_info *sta;
51
52 for (sta = hapd->sta_list; sta; sta = sta->next) {
53 if (cb(hapd, sta, ctx))
54 return 1;
55 }
56
57 return 0;
58}
59
60
61struct sta_info * ap_get_sta(struct hostapd_data *hapd, const u8 *sta)
62{
63 struct sta_info *s;
64
65 s = hapd->sta_hash[STA_HASH(sta)];
66 while (s != NULL && os_memcmp(s->addr, sta, 6) != 0)
67 s = s->hnext;
68 return s;
69}
70
71
72static void ap_sta_list_del(struct hostapd_data *hapd, struct sta_info *sta)
73{
74 struct sta_info *tmp;
75
76 if (hapd->sta_list == sta) {
77 hapd->sta_list = sta->next;
78 return;
79 }
80
81 tmp = hapd->sta_list;
82 while (tmp != NULL && tmp->next != sta)
83 tmp = tmp->next;
84 if (tmp == NULL) {
85 wpa_printf(MSG_DEBUG, "Could not remove STA " MACSTR " from "
86 "list.", MAC2STR(sta->addr));
87 } else
88 tmp->next = sta->next;
89}
90
91
92void ap_sta_hash_add(struct hostapd_data *hapd, struct sta_info *sta)
93{
94 sta->hnext = hapd->sta_hash[STA_HASH(sta->addr)];
95 hapd->sta_hash[STA_HASH(sta->addr)] = sta;
96}
97
98
99static void ap_sta_hash_del(struct hostapd_data *hapd, struct sta_info *sta)
100{
101 struct sta_info *s;
102
103 s = hapd->sta_hash[STA_HASH(sta->addr)];
104 if (s == NULL) return;
105 if (os_memcmp(s->addr, sta->addr, 6) == 0) {
106 hapd->sta_hash[STA_HASH(sta->addr)] = s->hnext;
107 return;
108 }
109
110 while (s->hnext != NULL &&
111 os_memcmp(s->hnext->addr, sta->addr, ETH_ALEN) != 0)
112 s = s->hnext;
113 if (s->hnext != NULL)
114 s->hnext = s->hnext->hnext;
115 else
116 wpa_printf(MSG_DEBUG, "AP: could not remove STA " MACSTR
117 " from hash table", MAC2STR(sta->addr));
118}
119
120
121void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta)
122{
123 int set_beacon = 0;
124
125 accounting_sta_stop(hapd, sta);
126
39f42d11
FF		 127 if (sta->flags & WLAN_STA_WDS)
128 hapd->drv.set_wds_sta(hapd, sta->addr, sta->aid, 0);
53f3d6f3
FF		 129
130 if (!(sta->flags & WLAN_STA_PREAUTH))
bdee6fce 131 hapd->drv.sta_remove(hapd, sta->addr);
6fc6879b
JM		 132
133 ap_sta_hash_del(hapd, sta);
134 ap_sta_list_del(hapd, sta);
135
136 if (sta->aid > 0)
2991469c
JM		 137 hapd->sta_aid[(sta->aid - 1) / 32] &=
138 ~BIT((sta->aid - 1) % 32);
6fc6879b
JM		 139
140 hapd->num_sta--;
141 if (sta->nonerp_set) {
142 sta->nonerp_set = 0;
143 hapd->iface->num_sta_non_erp--;
144 if (hapd->iface->num_sta_non_erp == 0)
145 set_beacon++;
146 }
147
148 if (sta->no_short_slot_time_set) {
149 sta->no_short_slot_time_set = 0;
150 hapd->iface->num_sta_no_short_slot_time--;
151 if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
152 && hapd->iface->num_sta_no_short_slot_time == 0)
153 set_beacon++;
154 }
155
156 if (sta->no_short_preamble_set) {
157 sta->no_short_preamble_set = 0;
158 hapd->iface->num_sta_no_short_preamble--;
159 if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
160 && hapd->iface->num_sta_no_short_preamble == 0)
161 set_beacon++;
162 }
163
e8ff1e59
JM		 164 if (sta->no_ht_gf_set) {
165 sta->no_ht_gf_set = 0;
166 hapd->iface->num_sta_ht_no_gf--;
167 }
168
169 if (sta->no_ht_set) {
170 sta->no_ht_set = 0;
de9289c8 171 hapd->iface->num_sta_no_ht--;
e8ff1e59
JM		 172 }
173
174 if (sta->ht_20mhz_set) {
175 sta->ht_20mhz_set = 0;
176 hapd->iface->num_sta_ht_20mhz--;
177 }
de9289c8 178
aefb53bd
JM		 179#ifdef CONFIG_P2P
180 if (sta->no_p2p_set) {
181 sta->no_p2p_set = 0;
182 hapd->num_sta_no_p2p--;
183 if (hapd->num_sta_no_p2p == 0)
184 hostapd_p2p_non_p2p_sta_disconnected(hapd);
185 }
186#endif /* CONFIG_P2P */
187
d45354be 188#if defined(NEED_AP_MLME) && defined(CONFIG_IEEE80211N)
de9289c8
JM		 189 if (hostapd_ht_operation_update(hapd->iface) > 0)
190 set_beacon++;
d45354be 191#endif /* NEED_AP_MLME && CONFIG_IEEE80211N */
de9289c8 192
6fc6879b
JM		 193 if (set_beacon)
194 ieee802_11_set_beacons(hapd->iface);
195
196 eloop_cancel_timeout(ap_handle_timer, hapd, sta);
197 eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
198
199 ieee802_1x_free_station(sta);
200 wpa_auth_sta_deinit(sta->wpa_sm);
201 rsn_preauth_free_station(hapd, sta);
74784010 202#ifndef CONFIG_NO_RADIUS
6fc6879b 203 radius_client_flush_auth(hapd->radius, sta->addr);
74784010 204#endif /* CONFIG_NO_RADIUS */
6fc6879b
JM		 205
206 os_free(sta->last_assoc_req);
207 os_free(sta->challenge);
5d22a1d5
JM		 208
209#ifdef CONFIG_IEEE80211W
93b76319
JM		 210 os_free(sta->sa_query_trans_id);
211 eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
5d22a1d5
JM		 212#endif /* CONFIG_IEEE80211W */
213
8ccbe415
JM		 214#ifdef CONFIG_P2P
215 p2p_group_notif_disassoc(hapd->p2p_group, sta->addr);
216#endif /* CONFIG_P2P */
217
eb76b7e3 218 wpabuf_free(sta->wps_ie);
b305c684 219 wpabuf_free(sta->p2p_ie);
eb76b7e3 220
df84268a
JM		 221 os_free(sta->ht_capabilities);
222
6fc6879b
JM		 223 os_free(sta);
224}
225
226
227void hostapd_free_stas(struct hostapd_data *hapd)
228{
229 struct sta_info *sta, *prev;
230
231 sta = hapd->sta_list;
232
233 while (sta) {
234 prev = sta;
235 if (sta->flags & WLAN_STA_AUTH) {
236 mlme_deauthenticate_indication(
237 hapd, sta, WLAN_REASON_UNSPECIFIED);
238 }
239 sta = sta->next;
240 wpa_printf(MSG_DEBUG, "Removing station " MACSTR,
241 MAC2STR(prev->addr));
242 ap_free_sta(hapd, prev);
243 }
244}
245
246
1c6e69cc
JM		 247/**
248 * ap_handle_timer - Per STA timer handler
249 * @eloop_ctx: struct hostapd_data *
250 * @timeout_ctx: struct sta_info *
251 *
252 * This function is called to check station activity and to remove inactive
253 * stations.
254 */
6fc6879b
JM		 255void ap_handle_timer(void *eloop_ctx, void *timeout_ctx)
256{
257 struct hostapd_data *hapd = eloop_ctx;
258 struct sta_info *sta = timeout_ctx;
259 unsigned long next_time = 0;
260
261 if (sta->timeout_next == STA_REMOVE) {
262 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
263 HOSTAPD_LEVEL_INFO, "deauthenticated due to "
264 "local deauth request");
265 ap_free_sta(hapd, sta);
266 return;
267 }
268
269 if ((sta->flags & WLAN_STA_ASSOC) &&
270 (sta->timeout_next == STA_NULLFUNC ||
271 sta->timeout_next == STA_DISASSOC)) {
272 int inactive_sec;
273 wpa_printf(MSG_DEBUG, "Checking STA " MACSTR " inactivity:",
274 MAC2STR(sta->addr));
bdee6fce 275 inactive_sec = hapd->drv.get_inact_sec(hapd, sta->addr);
6fc6879b
JM		 276 if (inactive_sec == -1) {
277 wpa_printf(MSG_DEBUG, "Could not get station info "
278 "from kernel driver for " MACSTR ".",
279 MAC2STR(sta->addr));
280 } else if (inactive_sec < hapd->conf->ap_max_inactivity &&
281 sta->flags & WLAN_STA_ASSOC) {
282 /* station activity detected; reset timeout state */
283 wpa_printf(MSG_DEBUG, " Station has been active");
284 sta->timeout_next = STA_NULLFUNC;
285 next_time = hapd->conf->ap_max_inactivity -
286 inactive_sec;
287 }
288 }
289
290 if ((sta->flags & WLAN_STA_ASSOC) &&
291 sta->timeout_next == STA_DISASSOC &&
292 !(sta->flags & WLAN_STA_PENDING_POLL)) {
293 wpa_printf(MSG_DEBUG, " Station has ACKed data poll");
294 /* data nullfunc frame poll did not produce TX errors; assume
295 * station ACKed it */
296 sta->timeout_next = STA_NULLFUNC;
297 next_time = hapd->conf->ap_max_inactivity;
298 }
299
300 if (next_time) {
301 eloop_register_timeout(next_time, 0, ap_handle_timer, hapd,
302 sta);
303 return;
304 }
305
306 if (sta->timeout_next == STA_NULLFUNC &&
307 (sta->flags & WLAN_STA_ASSOC)) {
08230317 308#ifndef CONFIG_NATIVE_WINDOWS
6fc6879b
JM		 309 /* send data frame to poll STA and check whether this frame
310 * is ACKed */
311 struct ieee80211_hdr hdr;
312
313 wpa_printf(MSG_DEBUG, " Polling STA with data frame");
314 sta->flags |= WLAN_STA_PENDING_POLL;
315
6fc6879b 316 os_memset(&hdr, 0, sizeof(hdr));
1e145265
JM		 317 if (hapd->driver &&
318 os_strcmp(hapd->driver->name, "hostap") == 0) {
319 /*
320 * WLAN_FC_STYPE_NULLFUNC would be more appropriate,
321 * but it is apparently not retried so TX Exc events
322 * are not received for it.
323 */
324 hdr.frame_control =
325 IEEE80211_FC(WLAN_FC_TYPE_DATA,
326 WLAN_FC_STYPE_DATA);
327 } else {
328 hdr.frame_control =
329 IEEE80211_FC(WLAN_FC_TYPE_DATA,
330 WLAN_FC_STYPE_NULLFUNC);
331 }
332
6fc6879b
JM		 333 hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
334 os_memcpy(hdr.IEEE80211_DA_FROMDS, sta->addr, ETH_ALEN);
335 os_memcpy(hdr.IEEE80211_BSSID_FROMDS, hapd->own_addr,
336 ETH_ALEN);
337 os_memcpy(hdr.IEEE80211_SA_FROMDS, hapd->own_addr, ETH_ALEN);
338
cee7d66b 339 if (hostapd_drv_send_mlme(hapd, &hdr, sizeof(hdr)) < 0)
6fc6879b
JM		 340 perror("ap_handle_timer: send");
341#endif /* CONFIG_NATIVE_WINDOWS */
342 } else if (sta->timeout_next != STA_REMOVE) {
343 int deauth = sta->timeout_next == STA_DEAUTH;
344
345 wpa_printf(MSG_DEBUG, "Sending %s info to STA " MACSTR,
346 deauth ? "deauthentication" : "disassociation",
347 MAC2STR(sta->addr));
348
349 if (deauth) {
bdee6fce
JM		 350 hapd->drv.sta_deauth(hapd, sta->addr,
351 WLAN_REASON_PREV_AUTH_NOT_VALID);
6fc6879b 352 } else {
bdee6fce 353 hapd->drv.sta_disassoc(
6fc6879b
JM		 354 hapd, sta->addr,
355 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY);
356 }
357 }
358
359 switch (sta->timeout_next) {
360 case STA_NULLFUNC:
361 sta->timeout_next = STA_DISASSOC;
362 eloop_register_timeout(AP_DISASSOC_DELAY, 0, ap_handle_timer,
363 hapd, sta);
364 break;
365 case STA_DISASSOC:
366 sta->flags &= ~WLAN_STA_ASSOC;
367 ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
368 if (!sta->acct_terminate_cause)
369 sta->acct_terminate_cause =
370 RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
371 accounting_sta_stop(hapd, sta);
372 ieee802_1x_free_station(sta);
373 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
374 HOSTAPD_LEVEL_INFO, "disassociated due to "
375 "inactivity");
376 sta->timeout_next = STA_DEAUTH;
377 eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer,
378 hapd, sta);
379 mlme_disassociate_indication(
380 hapd, sta, WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY);
381 break;
382 case STA_DEAUTH:
383 case STA_REMOVE:
384 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
385 HOSTAPD_LEVEL_INFO, "deauthenticated due to "
386 "inactivity");
387 if (!sta->acct_terminate_cause)
388 sta->acct_terminate_cause =
389 RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
390 mlme_deauthenticate_indication(
391 hapd, sta,
392 WLAN_REASON_PREV_AUTH_NOT_VALID);
393 ap_free_sta(hapd, sta);
394 break;
395 }
396}
397
398
399static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx)
400{
401 struct hostapd_data *hapd = eloop_ctx;
402 struct sta_info *sta = timeout_ctx;
403 u8 addr[ETH_ALEN];
404
405 if (!(sta->flags & WLAN_STA_AUTH))
406 return;
407
408 mlme_deauthenticate_indication(hapd, sta,
409 WLAN_REASON_PREV_AUTH_NOT_VALID);
410 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
411 HOSTAPD_LEVEL_INFO, "deauthenticated due to "
412 "session timeout");
413 sta->acct_terminate_cause =
414 RADIUS_ACCT_TERMINATE_CAUSE_SESSION_TIMEOUT;
415 os_memcpy(addr, sta->addr, ETH_ALEN);
416 ap_free_sta(hapd, sta);
bdee6fce 417 hapd->drv.sta_deauth(hapd, addr, WLAN_REASON_PREV_AUTH_NOT_VALID);
6fc6879b
JM		 418}
419
420
421void ap_sta_session_timeout(struct hostapd_data *hapd, struct sta_info *sta,
422 u32 session_timeout)
423{
424 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
425 HOSTAPD_LEVEL_DEBUG, "setting session timeout to %d "
426 "seconds", session_timeout);
427 eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
428 eloop_register_timeout(session_timeout, 0, ap_handle_session_timer,
429 hapd, sta);
430}
431
432
433void ap_sta_no_session_timeout(struct hostapd_data *hapd, struct sta_info *sta)
434{
435 eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
436}
437
438
439struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr)
440{
441 struct sta_info *sta;
442
443 sta = ap_get_sta(hapd, addr);
444 if (sta)
445 return sta;
446
447 wpa_printf(MSG_DEBUG, " New STA");
448 if (hapd->num_sta >= hapd->conf->max_num_sta) {
449 /* FIX: might try to remove some old STAs first? */
450 wpa_printf(MSG_DEBUG, "no more room for new STAs (%d/%d)",
451 hapd->num_sta, hapd->conf->max_num_sta);
452 return NULL;
453 }
454
455 sta = os_zalloc(sizeof(struct sta_info));
456 if (sta == NULL) {
457 wpa_printf(MSG_ERROR, "malloc failed");
458 return NULL;
459 }
5843e1c9 460 sta->acct_interim_interval = hapd->conf->acct_interim_interval;
6fc6879b
JM		 461
462 /* initialize STA info data */
463 eloop_register_timeout(hapd->conf->ap_max_inactivity, 0,
464 ap_handle_timer, hapd, sta);
465 os_memcpy(sta->addr, addr, ETH_ALEN);
466 sta->next = hapd->sta_list;
467 hapd->sta_list = sta;
468 hapd->num_sta++;
469 ap_sta_hash_add(hapd, sta);
470 sta->ssid = &hapd->conf->ssid;
53f3d6f3 471 ap_sta_remove_in_other_bss(hapd, sta);
6fc6879b
JM		 472
473 return sta;
474}
475
476
477static int ap_sta_remove(struct hostapd_data *hapd, struct sta_info *sta)
478{
479 ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
480
481 wpa_printf(MSG_DEBUG, "Removing STA " MACSTR " from kernel driver",
482 MAC2STR(sta->addr));
bdee6fce 483 if (hapd->drv.sta_remove(hapd, sta->addr) &&
6fc6879b
JM		 484 sta->flags & WLAN_STA_ASSOC) {
485 wpa_printf(MSG_DEBUG, "Could not remove station " MACSTR
486 " from kernel driver.", MAC2STR(sta->addr));
487 return -1;
488 }
489 return 0;
490}
491
492
53f3d6f3
FF		 493static void ap_sta_remove_in_other_bss(struct hostapd_data *hapd,
494 struct sta_info *sta)
6fc6879b
JM		 495{
496 struct hostapd_iface *iface = hapd->iface;
497 size_t i;
498
499 for (i = 0; i < iface->num_bss; i++) {
500 struct hostapd_data *bss = iface->bss[i];
501 struct sta_info *sta2;
502 /* bss should always be set during operation, but it may be
503 * NULL during reconfiguration. Assume the STA is not
504 * associated to another BSS in that case to avoid NULL pointer
505 * dereferences. */
506 if (bss == hapd || bss == NULL)
507 continue;
508 sta2 = ap_get_sta(bss, sta->addr);
53f3d6f3
FF		 509 if (!sta2)
510 continue;
6fc6879b 511
53f3d6f3
FF		 512 ap_sta_disconnect(bss, sta2, sta2->addr,
513 WLAN_REASON_PREV_AUTH_NOT_VALID);
514 }
6fc6879b
JM		 515}
516
517
518void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta,
519 u16 reason)
520{
521 wpa_printf(MSG_DEBUG, "%s: disassociate STA " MACSTR,
522 hapd->conf->iface, MAC2STR(sta->addr));
523 sta->flags &= ~WLAN_STA_ASSOC;
53f3d6f3 524 ap_sta_remove(hapd, sta);
6fc6879b
JM		 525 sta->timeout_next = STA_DEAUTH;
526 eloop_cancel_timeout(ap_handle_timer, hapd, sta);
527 eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DISASSOC, 0,
528 ap_handle_timer, hapd, sta);
529 accounting_sta_stop(hapd, sta);
530 ieee802_1x_free_station(sta);
531
532 mlme_disassociate_indication(hapd, sta, reason);
533}
534
535
536void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
537 u16 reason)
538{
539 wpa_printf(MSG_DEBUG, "%s: deauthenticate STA " MACSTR,
540 hapd->conf->iface, MAC2STR(sta->addr));
541 sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
53f3d6f3 542 ap_sta_remove(hapd, sta);
6fc6879b
JM		 543 sta->timeout_next = STA_REMOVE;
544 eloop_cancel_timeout(ap_handle_timer, hapd, sta);
545 eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
546 ap_handle_timer, hapd, sta);
547 accounting_sta_stop(hapd, sta);
548 ieee802_1x_free_station(sta);
549
550 mlme_deauthenticate_indication(hapd, sta, reason);
551}
552
553
554int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta,
555 int old_vlanid)
556{
30b32314 557#ifndef CONFIG_NO_VLAN
6fc6879b
JM		 558 const char *iface;
559 struct hostapd_vlan *vlan = NULL;
4254100d 560 int ret;
6fc6879b
JM		 561
562 /*
563 * Do not proceed furthur if the vlan id remains same. We do not want
564 * duplicate dynamic vlan entries.
565 */
566 if (sta->vlan_id == old_vlanid)
567 return 0;
568
569 /*
570 * During 1x reauth, if the vlan id changes, then remove the old id and
571 * proceed furthur to add the new one.
572 */
573 if (old_vlanid > 0)
574 vlan_remove_dynamic(hapd, old_vlanid);
575
576 iface = hapd->conf->iface;
577 if (sta->ssid->vlan[0])
578 iface = sta->ssid->vlan;
579
580 if (sta->ssid->dynamic_vlan == DYNAMIC_VLAN_DISABLED)
581 sta->vlan_id = 0;
582 else if (sta->vlan_id > 0) {
583 vlan = hapd->conf->vlan;
584 while (vlan) {
585 if (vlan->vlan_id == sta->vlan_id ||
586 vlan->vlan_id == VLAN_ID_WILDCARD) {
587 iface = vlan->ifname;
588 break;
589 }
590 vlan = vlan->next;
591 }
592 }
593
594 if (sta->vlan_id > 0 && vlan == NULL) {
595 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
596 HOSTAPD_LEVEL_DEBUG, "could not find VLAN for "
597 "binding station to (vlan_id=%d)",
598 sta->vlan_id);
599 return -1;
600 } else if (sta->vlan_id > 0 && vlan->vlan_id == VLAN_ID_WILDCARD) {
601 vlan = vlan_add_dynamic(hapd, vlan, sta->vlan_id);
602 if (vlan == NULL) {
603 hostapd_logger(hapd, sta->addr,
604 HOSTAPD_MODULE_IEEE80211,
605 HOSTAPD_LEVEL_DEBUG, "could not add "
606 "dynamic VLAN interface for vlan_id=%d",
607 sta->vlan_id);
608 return -1;
609 }
610
611 iface = vlan->ifname;
612 if (vlan_setup_encryption_dyn(hapd, sta->ssid, iface) != 0) {
613 hostapd_logger(hapd, sta->addr,
614 HOSTAPD_MODULE_IEEE80211,
615 HOSTAPD_LEVEL_DEBUG, "could not "
616 "configure encryption for dynamic VLAN "
617 "interface for vlan_id=%d",
618 sta->vlan_id);
619 }
620
621 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
622 HOSTAPD_LEVEL_DEBUG, "added new dynamic VLAN "
623 "interface '%s'", iface);
624 } else if (vlan && vlan->vlan_id == sta->vlan_id) {
625 if (sta->vlan_id > 0) {
626 vlan->dynamic_vlan++;
627 hostapd_logger(hapd, sta->addr,
628 HOSTAPD_MODULE_IEEE80211,
629 HOSTAPD_LEVEL_DEBUG, "updated existing "
630 "dynamic VLAN interface '%s'", iface);
631 }
632
633 /*
634 * Update encryption configuration for statically generated
635 * VLAN interface. This is only used for static WEP
636 * configuration for the case where hostapd did not yet know
637 * which keys are to be used when the interface was added.
638 */
639 if (vlan_setup_encryption_dyn(hapd, sta->ssid, iface) != 0) {
640 hostapd_logger(hapd, sta->addr,
641 HOSTAPD_MODULE_IEEE80211,
642 HOSTAPD_LEVEL_DEBUG, "could not "
643 "configure encryption for VLAN "
644 "interface for vlan_id=%d",
645 sta->vlan_id);
646 }
647 }
648
649 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
650 HOSTAPD_LEVEL_DEBUG, "binding station to interface "
651 "'%s'", iface);
652
653 if (wpa_auth_sta_set_vlan(sta->wpa_sm, sta->vlan_id) < 0)
654 wpa_printf(MSG_INFO, "Failed to update VLAN-ID for WPA");
655
4254100d
JM		 656 ret = hapd->drv.set_sta_vlan(iface, hapd, sta->addr, sta->vlan_id);
657 if (ret < 0) {
658 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
659 HOSTAPD_LEVEL_DEBUG, "could not bind the STA "
660 "entry to vlan_id=%d", sta->vlan_id);
661 }
662 return ret;
30b32314
JM		 663#else /* CONFIG_NO_VLAN */
664 return 0;
665#endif /* CONFIG_NO_VLAN */
6fc6879b 666}
5d22a1d5
JM		 667
668
669#ifdef CONFIG_IEEE80211W
670
45c94154 671int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta)
5d22a1d5 672{
45c94154
JM		 673 u32 tu;
674 struct os_time now, passed;
675 os_get_time(&now);
676 os_time_sub(&now, &sta->sa_query_start, &passed);
677 tu = (passed.sec * 1000000 + passed.usec) / 1024;
678 if (hapd->conf->assoc_sa_query_max_timeout < tu) {
679 hostapd_logger(hapd, sta->addr,
680 HOSTAPD_MODULE_IEEE80211,
5d22a1d5 681 HOSTAPD_LEVEL_DEBUG,
93b76319
JM		 682 "association SA Query timed out");
683 sta->sa_query_timed_out = 1;
684 os_free(sta->sa_query_trans_id);
685 sta->sa_query_trans_id = NULL;
686 sta->sa_query_count = 0;
45c94154
JM		 687 eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
688 return 1;
5d22a1d5
JM		 689 }
690
45c94154
JM		 691 return 0;
692}
693
694
695static void ap_sa_query_timer(void *eloop_ctx, void *timeout_ctx)
696{
697 struct hostapd_data *hapd = eloop_ctx;
698 struct sta_info *sta = timeout_ctx;
699 unsigned int timeout, sec, usec;
700 u8 *trans_id, *nbuf;
701
702 if (sta->sa_query_count > 0 &&
703 ap_check_sa_query_timeout(hapd, sta))
704 return;
705
93b76319
JM		 706 nbuf = os_realloc(sta->sa_query_trans_id,
707 (sta->sa_query_count + 1) * WLAN_SA_QUERY_TR_ID_LEN);
5d22a1d5
JM		 708 if (nbuf == NULL)
709 return;
45c94154
JM		 710 if (sta->sa_query_count == 0) {
711 /* Starting a new SA Query procedure */
712 os_get_time(&sta->sa_query_start);
713 }
93b76319
JM		 714 trans_id = nbuf + sta->sa_query_count * WLAN_SA_QUERY_TR_ID_LEN;
715 sta->sa_query_trans_id = nbuf;
716 sta->sa_query_count++;
5d22a1d5 717
93b76319 718 os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN);
5d22a1d5 719
45c94154
JM		 720 timeout = hapd->conf->assoc_sa_query_retry_timeout;
721 sec = ((timeout / 1000) * 1024) / 1000;
722 usec = (timeout % 1000) * 1024;
723 eloop_register_timeout(sec, usec, ap_sa_query_timer, hapd, sta);
724
5d22a1d5
JM		 725 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
726 HOSTAPD_LEVEL_DEBUG,
93b76319 727 "association SA Query attempt %d", sta->sa_query_count);
5d22a1d5 728
fe6bdb77 729#ifdef NEED_AP_MLME
93b76319 730 ieee802_11_send_sa_query_req(hapd, sta->addr, trans_id);
fe6bdb77 731#endif /* NEED_AP_MLME */
5d22a1d5
JM		 732}
733
734
93b76319 735void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
5d22a1d5 736{
93b76319 737 ap_sa_query_timer(hapd, sta);
5d22a1d5
JM		 738}
739
740
93b76319 741void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
5d22a1d5 742{
93b76319
JM		 743 eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
744 os_free(sta->sa_query_trans_id);
745 sta->sa_query_trans_id = NULL;
746 sta->sa_query_count = 0;
5d22a1d5
JM		 747}
748
749#endif /* CONFIG_IEEE80211W */
45cefa0b
JM		 750
751
752void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta,
753 const u8 *addr, u16 reason)
754{
755
756 if (sta == NULL && addr)
757 sta = ap_get_sta(hapd, addr);
758
759 if (addr)
bdee6fce 760 hapd->drv.sta_deauth(hapd, addr, reason);
45cefa0b
JM		 761
762 if (sta == NULL)
763 return;
764 sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_AUTHORIZED);
765 eloop_cancel_timeout(ap_handle_timer, hapd, sta);
766 eloop_register_timeout(0, 0, ap_handle_timer, hapd, sta);
767 sta->timeout_next = STA_REMOVE;
768}
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