Disconnect hostapd from building in base
[dragonfly.git] / contrib / hostapd / src / ap / sta_info.c
CommitLineData
ebfa2275
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1/*
2 * hostapd / Station table
4781064b 3 * Copyright (c) 2002-2013, Jouni Malinen <j@w1.fi>
ebfa2275 4 *
4781064b
JM
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
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7 */
8
4781064b 9#include "utils/includes.h"
ebfa2275 10
4781064b
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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"
ebfa2275 19#include "hostapd.h"
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20#include "accounting.h"
21#include "ieee802_1x.h"
22#include "ieee802_11.h"
4781064b
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23#include "ieee802_11_auth.h"
24#include "wpa_auth.h"
25#include "preauth_auth.h"
26#include "ap_config.h"
ebfa2275 27#include "beacon.h"
4781064b 28#include "ap_mlme.h"
ebfa2275 29#include "vlan_init.h"
4781064b
JM
30#include "p2p_hostapd.h"
31#include "ap_drv_ops.h"
32#include "gas_serv.h"
33#include "sta_info.h"
ebfa2275 34
4781064b
JM
35static void ap_sta_remove_in_other_bss(struct hostapd_data *hapd,
36 struct sta_info *sta);
ebfa2275 37static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx);
4781064b
JM
38static void ap_sta_deauth_cb_timeout(void *eloop_ctx, void *timeout_ctx);
39static void ap_sta_disassoc_cb_timeout(void *eloop_ctx, void *timeout_ctx);
a875087d
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40#ifdef CONFIG_IEEE80211W
41static void ap_sa_query_timer(void *eloop_ctx, void *timeout_ctx);
42#endif /* CONFIG_IEEE80211W */
4781064b 43static int ap_sta_remove(struct hostapd_data *hapd, struct sta_info *sta);
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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)];
a875087d 66 while (s != NULL && os_memcmp(s->addr, sta, 6) != 0)
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67 s = s->hnext;
68 return s;
69}
70
71
4781064b
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72#ifdef CONFIG_P2P
73struct sta_info * ap_get_sta_p2p(struct hostapd_data *hapd, const u8 *addr)
74{
75 struct sta_info *sta;
76
77 for (sta = hapd->sta_list; sta; sta = sta->next) {
78 const u8 *p2p_dev_addr;
79
80 if (sta->p2p_ie == NULL)
81 continue;
82
83 p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie);
84 if (p2p_dev_addr == NULL)
85 continue;
86
87 if (os_memcmp(p2p_dev_addr, addr, ETH_ALEN) == 0)
88 return sta;
89 }
90
91 return NULL;
92}
93#endif /* CONFIG_P2P */
94
95
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96static void ap_sta_list_del(struct hostapd_data *hapd, struct sta_info *sta)
97{
98 struct sta_info *tmp;
99
100 if (hapd->sta_list == sta) {
101 hapd->sta_list = sta->next;
102 return;
103 }
104
105 tmp = hapd->sta_list;
106 while (tmp != NULL && tmp->next != sta)
107 tmp = tmp->next;
108 if (tmp == NULL) {
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109 wpa_printf(MSG_DEBUG, "Could not remove STA " MACSTR " from "
110 "list.", MAC2STR(sta->addr));
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111 } else
112 tmp->next = sta->next;
113}
114
115
116void ap_sta_hash_add(struct hostapd_data *hapd, struct sta_info *sta)
117{
118 sta->hnext = hapd->sta_hash[STA_HASH(sta->addr)];
119 hapd->sta_hash[STA_HASH(sta->addr)] = sta;
120}
121
122
123static void ap_sta_hash_del(struct hostapd_data *hapd, struct sta_info *sta)
124{
125 struct sta_info *s;
126
127 s = hapd->sta_hash[STA_HASH(sta->addr)];
128 if (s == NULL) return;
a875087d 129 if (os_memcmp(s->addr, sta->addr, 6) == 0) {
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130 hapd->sta_hash[STA_HASH(sta->addr)] = s->hnext;
131 return;
132 }
133
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134 while (s->hnext != NULL &&
135 os_memcmp(s->hnext->addr, sta->addr, ETH_ALEN) != 0)
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136 s = s->hnext;
137 if (s->hnext != NULL)
138 s->hnext = s->hnext->hnext;
139 else
a875087d
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140 wpa_printf(MSG_DEBUG, "AP: could not remove STA " MACSTR
141 " from hash table", MAC2STR(sta->addr));
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142}
143
144
145void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta)
146{
147 int set_beacon = 0;
148
149 accounting_sta_stop(hapd, sta);
150
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JM
151 /* just in case */
152 ap_sta_set_authorized(hapd, sta, 0);
153
154 if (sta->flags & WLAN_STA_WDS)
155 hostapd_set_wds_sta(hapd, NULL, sta->addr, sta->aid, 0);
156
157 if (!(sta->flags & WLAN_STA_PREAUTH))
158 hostapd_drv_sta_remove(hapd, sta->addr);
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159
160 ap_sta_hash_del(hapd, sta);
161 ap_sta_list_del(hapd, sta);
162
163 if (sta->aid > 0)
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JM
164 hapd->sta_aid[(sta->aid - 1) / 32] &=
165 ~BIT((sta->aid - 1) % 32);
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166
167 hapd->num_sta--;
168 if (sta->nonerp_set) {
169 sta->nonerp_set = 0;
170 hapd->iface->num_sta_non_erp--;
171 if (hapd->iface->num_sta_non_erp == 0)
172 set_beacon++;
173 }
174
175 if (sta->no_short_slot_time_set) {
176 sta->no_short_slot_time_set = 0;
177 hapd->iface->num_sta_no_short_slot_time--;
178 if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
179 && hapd->iface->num_sta_no_short_slot_time == 0)
180 set_beacon++;
181 }
182
183 if (sta->no_short_preamble_set) {
184 sta->no_short_preamble_set = 0;
185 hapd->iface->num_sta_no_short_preamble--;
186 if (hapd->iface->current_mode->mode == HOSTAPD_MODE_IEEE80211G
187 && hapd->iface->num_sta_no_short_preamble == 0)
188 set_beacon++;
189 }
190
a875087d
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191 if (sta->no_ht_gf_set) {
192 sta->no_ht_gf_set = 0;
193 hapd->iface->num_sta_ht_no_gf--;
194 }
195
196 if (sta->no_ht_set) {
197 sta->no_ht_set = 0;
198 hapd->iface->num_sta_no_ht--;
199 }
200
201 if (sta->ht_20mhz_set) {
202 sta->ht_20mhz_set = 0;
203 hapd->iface->num_sta_ht_20mhz--;
204 }
205
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206#ifdef CONFIG_P2P
207 if (sta->no_p2p_set) {
208 sta->no_p2p_set = 0;
209 hapd->num_sta_no_p2p--;
210 if (hapd->num_sta_no_p2p == 0)
211 hostapd_p2p_non_p2p_sta_disconnected(hapd);
212 }
213#endif /* CONFIG_P2P */
214
215#if defined(NEED_AP_MLME) && defined(CONFIG_IEEE80211N)
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216 if (hostapd_ht_operation_update(hapd->iface) > 0)
217 set_beacon++;
4781064b 218#endif /* NEED_AP_MLME && CONFIG_IEEE80211N */
a875087d 219
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220 if (set_beacon)
221 ieee802_11_set_beacons(hapd->iface);
222
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223 wpa_printf(MSG_DEBUG, "%s: cancel ap_handle_timer for " MACSTR,
224 __func__, MAC2STR(sta->addr));
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225 eloop_cancel_timeout(ap_handle_timer, hapd, sta);
226 eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
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227 eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
228 eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
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229
230 ieee802_1x_free_station(sta);
231 wpa_auth_sta_deinit(sta->wpa_sm);
232 rsn_preauth_free_station(hapd, sta);
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233#ifndef CONFIG_NO_RADIUS
234 if (hapd->radius)
235 radius_client_flush_auth(hapd->radius, sta->addr);
236#endif /* CONFIG_NO_RADIUS */
ebfa2275 237
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238 os_free(sta->last_assoc_req);
239 os_free(sta->challenge);
240
241#ifdef CONFIG_IEEE80211W
242 os_free(sta->sa_query_trans_id);
243 eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
244#endif /* CONFIG_IEEE80211W */
ebfa2275 245
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246#ifdef CONFIG_P2P
247 p2p_group_notif_disassoc(hapd->p2p_group, sta->addr);
248#endif /* CONFIG_P2P */
249
250#ifdef CONFIG_INTERWORKING
251 if (sta->gas_dialog) {
252 int i;
253 for (i = 0; i < GAS_DIALOG_MAX; i++)
254 gas_serv_dialog_clear(&sta->gas_dialog[i]);
255 os_free(sta->gas_dialog);
256 }
257#endif /* CONFIG_INTERWORKING */
258
a875087d 259 wpabuf_free(sta->wps_ie);
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JM
260 wpabuf_free(sta->p2p_ie);
261 wpabuf_free(sta->hs20_ie);
262
263 os_free(sta->ht_capabilities);
264 os_free(sta->vht_capabilities);
265 hostapd_free_psk_list(sta->psk);
266 os_free(sta->identity);
267 os_free(sta->radius_cui);
268
269#ifdef CONFIG_SAE
270 sae_clear_data(sta->sae);
271 os_free(sta->sae);
272#endif /* CONFIG_SAE */
ebfa2275 273
a875087d 274 os_free(sta);
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275}
276
277
278void hostapd_free_stas(struct hostapd_data *hapd)
279{
280 struct sta_info *sta, *prev;
281
282 sta = hapd->sta_list;
283
284 while (sta) {
285 prev = sta;
286 if (sta->flags & WLAN_STA_AUTH) {
287 mlme_deauthenticate_indication(
288 hapd, sta, WLAN_REASON_UNSPECIFIED);
289 }
290 sta = sta->next;
a875087d
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291 wpa_printf(MSG_DEBUG, "Removing station " MACSTR,
292 MAC2STR(prev->addr));
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293 ap_free_sta(hapd, prev);
294 }
295}
296
297
a875087d
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298/**
299 * ap_handle_timer - Per STA timer handler
300 * @eloop_ctx: struct hostapd_data *
301 * @timeout_ctx: struct sta_info *
302 *
303 * This function is called to check station activity and to remove inactive
304 * stations.
305 */
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306void ap_handle_timer(void *eloop_ctx, void *timeout_ctx)
307{
308 struct hostapd_data *hapd = eloop_ctx;
309 struct sta_info *sta = timeout_ctx;
310 unsigned long next_time = 0;
4781064b 311 int reason;
ebfa2275 312
4781064b
JM
313 wpa_printf(MSG_DEBUG, "%s: " MACSTR " flags=0x%x timeout_next=%d",
314 __func__, MAC2STR(sta->addr), sta->flags,
315 sta->timeout_next);
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316 if (sta->timeout_next == STA_REMOVE) {
317 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
318 HOSTAPD_LEVEL_INFO, "deauthenticated due to "
319 "local deauth request");
320 ap_free_sta(hapd, sta);
321 return;
322 }
323
324 if ((sta->flags & WLAN_STA_ASSOC) &&
325 (sta->timeout_next == STA_NULLFUNC ||
326 sta->timeout_next == STA_DISASSOC)) {
327 int inactive_sec;
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JM
328 /*
329 * Add random value to timeout so that we don't end up bouncing
330 * all stations at the same time if we have lots of associated
331 * stations that are idle (but keep re-associating).
332 */
333 int fuzz = os_random() % 20;
334 inactive_sec = hostapd_drv_get_inact_sec(hapd, sta->addr);
ebfa2275 335 if (inactive_sec == -1) {
4781064b
JM
336 wpa_msg(hapd->msg_ctx, MSG_DEBUG,
337 "Check inactivity: Could not "
338 "get station info from kernel driver for "
339 MACSTR, MAC2STR(sta->addr));
340 /*
341 * The driver may not support this functionality.
342 * Anyway, try again after the next inactivity timeout,
343 * but do not disconnect the station now.
344 */
345 next_time = hapd->conf->ap_max_inactivity + fuzz;
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346 } else if (inactive_sec < hapd->conf->ap_max_inactivity &&
347 sta->flags & WLAN_STA_ASSOC) {
348 /* station activity detected; reset timeout state */
4781064b
JM
349 wpa_msg(hapd->msg_ctx, MSG_DEBUG,
350 "Station " MACSTR " has been active %is ago",
351 MAC2STR(sta->addr), inactive_sec);
ebfa2275 352 sta->timeout_next = STA_NULLFUNC;
4781064b 353 next_time = hapd->conf->ap_max_inactivity + fuzz -
ebfa2275 354 inactive_sec;
4781064b
JM
355 } else {
356 wpa_msg(hapd->msg_ctx, MSG_DEBUG,
357 "Station " MACSTR " has been "
358 "inactive too long: %d sec, max allowed: %d",
359 MAC2STR(sta->addr), inactive_sec,
360 hapd->conf->ap_max_inactivity);
361
362 if (hapd->conf->skip_inactivity_poll)
363 sta->timeout_next = STA_DISASSOC;
ebfa2275
SZ
364 }
365 }
366
367 if ((sta->flags & WLAN_STA_ASSOC) &&
368 sta->timeout_next == STA_DISASSOC &&
4781064b
JM
369 !(sta->flags & WLAN_STA_PENDING_POLL) &&
370 !hapd->conf->skip_inactivity_poll) {
371 wpa_msg(hapd->msg_ctx, MSG_DEBUG, "Station " MACSTR
372 " has ACKed data poll", MAC2STR(sta->addr));
ebfa2275
SZ
373 /* data nullfunc frame poll did not produce TX errors; assume
374 * station ACKed it */
375 sta->timeout_next = STA_NULLFUNC;
376 next_time = hapd->conf->ap_max_inactivity;
377 }
378
379 if (next_time) {
4781064b
JM
380 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
381 "for " MACSTR " (%lu seconds)",
382 __func__, MAC2STR(sta->addr), next_time);
ebfa2275
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383 eloop_register_timeout(next_time, 0, ap_handle_timer, hapd,
384 sta);
385 return;
386 }
387
388 if (sta->timeout_next == STA_NULLFUNC &&
389 (sta->flags & WLAN_STA_ASSOC)) {
4781064b 390 wpa_printf(MSG_DEBUG, " Polling STA");
ebfa2275 391 sta->flags |= WLAN_STA_PENDING_POLL;
4781064b
JM
392 hostapd_drv_poll_client(hapd, hapd->own_addr, sta->addr,
393 sta->flags & WLAN_STA_WMM);
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394 } else if (sta->timeout_next != STA_REMOVE) {
395 int deauth = sta->timeout_next == STA_DEAUTH;
396
4781064b
JM
397 wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
398 "Timeout, sending %s info to STA " MACSTR,
399 deauth ? "deauthentication" : "disassociation",
400 MAC2STR(sta->addr));
ebfa2275
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401
402 if (deauth) {
4781064b 403 hostapd_drv_sta_deauth(
ebfa2275 404 hapd, sta->addr,
4781064b
JM
405 WLAN_REASON_PREV_AUTH_NOT_VALID);
406 } else {
407 reason = (sta->timeout_next == STA_DISASSOC) ?
408 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY :
409 WLAN_REASON_PREV_AUTH_NOT_VALID;
410
411 hostapd_drv_sta_disassoc(hapd, sta->addr, reason);
ebfa2275
SZ
412 }
413 }
414
415 switch (sta->timeout_next) {
416 case STA_NULLFUNC:
417 sta->timeout_next = STA_DISASSOC;
4781064b
JM
418 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
419 "for " MACSTR " (%d seconds - AP_DISASSOC_DELAY)",
420 __func__, MAC2STR(sta->addr), AP_DISASSOC_DELAY);
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421 eloop_register_timeout(AP_DISASSOC_DELAY, 0, ap_handle_timer,
422 hapd, sta);
423 break;
424 case STA_DISASSOC:
4781064b
JM
425 case STA_DISASSOC_FROM_CLI:
426 ap_sta_set_authorized(hapd, sta, 0);
ebfa2275
SZ
427 sta->flags &= ~WLAN_STA_ASSOC;
428 ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
429 if (!sta->acct_terminate_cause)
430 sta->acct_terminate_cause =
431 RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
432 accounting_sta_stop(hapd, sta);
433 ieee802_1x_free_station(sta);
434 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
435 HOSTAPD_LEVEL_INFO, "disassociated due to "
436 "inactivity");
4781064b
JM
437 reason = (sta->timeout_next == STA_DISASSOC) ?
438 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY :
439 WLAN_REASON_PREV_AUTH_NOT_VALID;
ebfa2275 440 sta->timeout_next = STA_DEAUTH;
4781064b
JM
441 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
442 "for " MACSTR " (%d seconds - AP_DEAUTH_DELAY)",
443 __func__, MAC2STR(sta->addr), AP_DEAUTH_DELAY);
ebfa2275
SZ
444 eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer,
445 hapd, sta);
4781064b 446 mlme_disassociate_indication(hapd, sta, reason);
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SZ
447 break;
448 case STA_DEAUTH:
449 case STA_REMOVE:
450 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
451 HOSTAPD_LEVEL_INFO, "deauthenticated due to "
4781064b 452 "inactivity (timer DEAUTH/REMOVE)");
ebfa2275
SZ
453 if (!sta->acct_terminate_cause)
454 sta->acct_terminate_cause =
455 RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
456 mlme_deauthenticate_indication(
457 hapd, sta,
458 WLAN_REASON_PREV_AUTH_NOT_VALID);
459 ap_free_sta(hapd, sta);
460 break;
461 }
462}
463
464
465static void ap_handle_session_timer(void *eloop_ctx, void *timeout_ctx)
466{
467 struct hostapd_data *hapd = eloop_ctx;
468 struct sta_info *sta = timeout_ctx;
469 u8 addr[ETH_ALEN];
470
4781064b
JM
471 if (!(sta->flags & WLAN_STA_AUTH)) {
472 if (sta->flags & WLAN_STA_GAS) {
473 wpa_printf(MSG_DEBUG, "GAS: Remove temporary STA "
474 "entry " MACSTR, MAC2STR(sta->addr));
475 ap_free_sta(hapd, sta);
476 }
ebfa2275 477 return;
4781064b 478 }
ebfa2275
SZ
479
480 mlme_deauthenticate_indication(hapd, sta,
481 WLAN_REASON_PREV_AUTH_NOT_VALID);
482 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
483 HOSTAPD_LEVEL_INFO, "deauthenticated due to "
484 "session timeout");
485 sta->acct_terminate_cause =
486 RADIUS_ACCT_TERMINATE_CAUSE_SESSION_TIMEOUT;
a875087d 487 os_memcpy(addr, sta->addr, ETH_ALEN);
ebfa2275 488 ap_free_sta(hapd, sta);
4781064b
JM
489 hostapd_drv_sta_deauth(hapd, addr, WLAN_REASON_PREV_AUTH_NOT_VALID);
490}
491
492
493void ap_sta_replenish_timeout(struct hostapd_data *hapd, struct sta_info *sta,
494 u32 session_timeout)
495{
496 if (eloop_replenish_timeout(session_timeout, 0,
497 ap_handle_session_timer, hapd, sta) == 1) {
498 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
499 HOSTAPD_LEVEL_DEBUG, "setting session timeout "
500 "to %d seconds", session_timeout);
501 }
ebfa2275
SZ
502}
503
504
505void ap_sta_session_timeout(struct hostapd_data *hapd, struct sta_info *sta,
506 u32 session_timeout)
507{
508 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
509 HOSTAPD_LEVEL_DEBUG, "setting session timeout to %d "
510 "seconds", session_timeout);
511 eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
512 eloop_register_timeout(session_timeout, 0, ap_handle_session_timer,
513 hapd, sta);
514}
515
516
517void ap_sta_no_session_timeout(struct hostapd_data *hapd, struct sta_info *sta)
518{
519 eloop_cancel_timeout(ap_handle_session_timer, hapd, sta);
520}
521
522
523struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr)
524{
525 struct sta_info *sta;
526
527 sta = ap_get_sta(hapd, addr);
528 if (sta)
529 return sta;
530
a875087d 531 wpa_printf(MSG_DEBUG, " New STA");
ebfa2275
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532 if (hapd->num_sta >= hapd->conf->max_num_sta) {
533 /* FIX: might try to remove some old STAs first? */
a875087d
JL
534 wpa_printf(MSG_DEBUG, "no more room for new STAs (%d/%d)",
535 hapd->num_sta, hapd->conf->max_num_sta);
ebfa2275
SZ
536 return NULL;
537 }
538
a875087d 539 sta = os_zalloc(sizeof(struct sta_info));
ebfa2275 540 if (sta == NULL) {
a875087d 541 wpa_printf(MSG_ERROR, "malloc failed");
ebfa2275
SZ
542 return NULL;
543 }
4781064b
JM
544 sta->acct_interim_interval = hapd->conf->acct_interim_interval;
545 accounting_sta_get_id(hapd, sta);
546
547 if (!(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER)) {
548 wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
549 "for " MACSTR " (%d seconds - ap_max_inactivity)",
550 __func__, MAC2STR(addr),
551 hapd->conf->ap_max_inactivity);
552 eloop_register_timeout(hapd->conf->ap_max_inactivity, 0,
553 ap_handle_timer, hapd, sta);
554 }
ebfa2275
SZ
555
556 /* initialize STA info data */
a875087d 557 os_memcpy(sta->addr, addr, ETH_ALEN);
ebfa2275
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558 sta->next = hapd->sta_list;
559 hapd->sta_list = sta;
560 hapd->num_sta++;
561 ap_sta_hash_add(hapd, sta);
562 sta->ssid = &hapd->conf->ssid;
4781064b 563 ap_sta_remove_in_other_bss(hapd, sta);
ebfa2275
SZ
564
565 return sta;
566}
567
568
569static int ap_sta_remove(struct hostapd_data *hapd, struct sta_info *sta)
570{
571 ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
572
a875087d
JL
573 wpa_printf(MSG_DEBUG, "Removing STA " MACSTR " from kernel driver",
574 MAC2STR(sta->addr));
4781064b 575 if (hostapd_drv_sta_remove(hapd, sta->addr) &&
ebfa2275 576 sta->flags & WLAN_STA_ASSOC) {
a875087d
JL
577 wpa_printf(MSG_DEBUG, "Could not remove station " MACSTR
578 " from kernel driver.", MAC2STR(sta->addr));
ebfa2275
SZ
579 return -1;
580 }
581 return 0;
582}
583
584
4781064b
JM
585static void ap_sta_remove_in_other_bss(struct hostapd_data *hapd,
586 struct sta_info *sta)
ebfa2275
SZ
587{
588 struct hostapd_iface *iface = hapd->iface;
589 size_t i;
590
591 for (i = 0; i < iface->num_bss; i++) {
592 struct hostapd_data *bss = iface->bss[i];
593 struct sta_info *sta2;
594 /* bss should always be set during operation, but it may be
595 * NULL during reconfiguration. Assume the STA is not
596 * associated to another BSS in that case to avoid NULL pointer
597 * dereferences. */
598 if (bss == hapd || bss == NULL)
599 continue;
600 sta2 = ap_get_sta(bss, sta->addr);
4781064b
JM
601 if (!sta2)
602 continue;
603
604 ap_sta_disconnect(bss, sta2, sta2->addr,
605 WLAN_REASON_PREV_AUTH_NOT_VALID);
ebfa2275 606 }
4781064b 607}
ebfa2275 608
4781064b
JM
609
610static void ap_sta_disassoc_cb_timeout(void *eloop_ctx, void *timeout_ctx)
611{
612 struct hostapd_data *hapd = eloop_ctx;
613 struct sta_info *sta = timeout_ctx;
614
615 ap_sta_remove(hapd, sta);
616 mlme_disassociate_indication(hapd, sta, sta->disassoc_reason);
ebfa2275
SZ
617}
618
619
620void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta,
621 u16 reason)
622{
a875087d
JL
623 wpa_printf(MSG_DEBUG, "%s: disassociate STA " MACSTR,
624 hapd->conf->iface, MAC2STR(sta->addr));
4781064b
JM
625 sta->flags &= ~(WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK);
626 ap_sta_set_authorized(hapd, sta, 0);
ebfa2275 627 sta->timeout_next = STA_DEAUTH;
4781064b
JM
628 wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
629 "for " MACSTR " (%d seconds - "
630 "AP_MAX_INACTIVITY_AFTER_DISASSOC)",
631 __func__, MAC2STR(sta->addr),
632 AP_MAX_INACTIVITY_AFTER_DISASSOC);
ebfa2275
SZ
633 eloop_cancel_timeout(ap_handle_timer, hapd, sta);
634 eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DISASSOC, 0,
635 ap_handle_timer, hapd, sta);
636 accounting_sta_stop(hapd, sta);
637 ieee802_1x_free_station(sta);
638
4781064b
JM
639 sta->disassoc_reason = reason;
640 sta->flags |= WLAN_STA_PENDING_DISASSOC_CB;
641 eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
642 eloop_register_timeout(hapd->iface->drv_flags &
643 WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
644 ap_sta_disassoc_cb_timeout, hapd, sta);
645}
646
647
648static void ap_sta_deauth_cb_timeout(void *eloop_ctx, void *timeout_ctx)
649{
650 struct hostapd_data *hapd = eloop_ctx;
651 struct sta_info *sta = timeout_ctx;
652
653 ap_sta_remove(hapd, sta);
654 mlme_deauthenticate_indication(hapd, sta, sta->deauth_reason);
ebfa2275
SZ
655}
656
657
658void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
659 u16 reason)
660{
a875087d
JL
661 wpa_printf(MSG_DEBUG, "%s: deauthenticate STA " MACSTR,
662 hapd->conf->iface, MAC2STR(sta->addr));
ebfa2275 663 sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
4781064b 664 ap_sta_set_authorized(hapd, sta, 0);
ebfa2275 665 sta->timeout_next = STA_REMOVE;
4781064b
JM
666 wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
667 "for " MACSTR " (%d seconds - "
668 "AP_MAX_INACTIVITY_AFTER_DEAUTH)",
669 __func__, MAC2STR(sta->addr),
670 AP_MAX_INACTIVITY_AFTER_DEAUTH);
ebfa2275
SZ
671 eloop_cancel_timeout(ap_handle_timer, hapd, sta);
672 eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
673 ap_handle_timer, hapd, sta);
674 accounting_sta_stop(hapd, sta);
675 ieee802_1x_free_station(sta);
676
4781064b
JM
677 sta->deauth_reason = reason;
678 sta->flags |= WLAN_STA_PENDING_DEAUTH_CB;
679 eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
680 eloop_register_timeout(hapd->iface->drv_flags &
681 WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
682 ap_sta_deauth_cb_timeout, hapd, sta);
ebfa2275
SZ
683}
684
685
4781064b
JM
686#ifdef CONFIG_WPS
687int ap_sta_wps_cancel(struct hostapd_data *hapd,
688 struct sta_info *sta, void *ctx)
689{
690 if (sta && (sta->flags & WLAN_STA_WPS)) {
691 ap_sta_deauthenticate(hapd, sta,
692 WLAN_REASON_PREV_AUTH_NOT_VALID);
693 wpa_printf(MSG_DEBUG, "WPS: %s: Deauth sta=" MACSTR,
694 __func__, MAC2STR(sta->addr));
695 return 1;
696 }
697
698 return 0;
699}
700#endif /* CONFIG_WPS */
701
702
ebfa2275
SZ
703int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta,
704 int old_vlanid)
705{
4781064b 706#ifndef CONFIG_NO_VLAN
ebfa2275
SZ
707 const char *iface;
708 struct hostapd_vlan *vlan = NULL;
4781064b 709 int ret;
ebfa2275
SZ
710
711 /*
712 * Do not proceed furthur if the vlan id remains same. We do not want
713 * duplicate dynamic vlan entries.
714 */
715 if (sta->vlan_id == old_vlanid)
716 return 0;
717
718 /*
719 * During 1x reauth, if the vlan id changes, then remove the old id and
720 * proceed furthur to add the new one.
721 */
722 if (old_vlanid > 0)
723 vlan_remove_dynamic(hapd, old_vlanid);
724
725 iface = hapd->conf->iface;
726 if (sta->ssid->vlan[0])
727 iface = sta->ssid->vlan;
728
729 if (sta->ssid->dynamic_vlan == DYNAMIC_VLAN_DISABLED)
730 sta->vlan_id = 0;
731 else if (sta->vlan_id > 0) {
4781064b 732 struct hostapd_vlan *wildcard_vlan = NULL;
ebfa2275
SZ
733 vlan = hapd->conf->vlan;
734 while (vlan) {
4781064b 735 if (vlan->vlan_id == sta->vlan_id)
ebfa2275 736 break;
4781064b
JM
737 if (vlan->vlan_id == VLAN_ID_WILDCARD)
738 wildcard_vlan = vlan;
ebfa2275
SZ
739 vlan = vlan->next;
740 }
4781064b
JM
741 if (!vlan)
742 vlan = wildcard_vlan;
743 if (vlan)
744 iface = vlan->ifname;
ebfa2275
SZ
745 }
746
747 if (sta->vlan_id > 0 && vlan == NULL) {
748 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
749 HOSTAPD_LEVEL_DEBUG, "could not find VLAN for "
750 "binding station to (vlan_id=%d)",
751 sta->vlan_id);
752 return -1;
753 } else if (sta->vlan_id > 0 && vlan->vlan_id == VLAN_ID_WILDCARD) {
754 vlan = vlan_add_dynamic(hapd, vlan, sta->vlan_id);
755 if (vlan == NULL) {
756 hostapd_logger(hapd, sta->addr,
757 HOSTAPD_MODULE_IEEE80211,
758 HOSTAPD_LEVEL_DEBUG, "could not add "
759 "dynamic VLAN interface for vlan_id=%d",
760 sta->vlan_id);
761 return -1;
762 }
763
764 iface = vlan->ifname;
765 if (vlan_setup_encryption_dyn(hapd, sta->ssid, iface) != 0) {
766 hostapd_logger(hapd, sta->addr,
767 HOSTAPD_MODULE_IEEE80211,
768 HOSTAPD_LEVEL_DEBUG, "could not "
769 "configure encryption for dynamic VLAN "
770 "interface for vlan_id=%d",
771 sta->vlan_id);
772 }
773
774 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
775 HOSTAPD_LEVEL_DEBUG, "added new dynamic VLAN "
776 "interface '%s'", iface);
777 } else if (vlan && vlan->vlan_id == sta->vlan_id) {
778 if (sta->vlan_id > 0) {
779 vlan->dynamic_vlan++;
780 hostapd_logger(hapd, sta->addr,
781 HOSTAPD_MODULE_IEEE80211,
782 HOSTAPD_LEVEL_DEBUG, "updated existing "
783 "dynamic VLAN interface '%s'", iface);
784 }
785
786 /*
787 * Update encryption configuration for statically generated
788 * VLAN interface. This is only used for static WEP
789 * configuration for the case where hostapd did not yet know
790 * which keys are to be used when the interface was added.
791 */
792 if (vlan_setup_encryption_dyn(hapd, sta->ssid, iface) != 0) {
793 hostapd_logger(hapd, sta->addr,
794 HOSTAPD_MODULE_IEEE80211,
795 HOSTAPD_LEVEL_DEBUG, "could not "
796 "configure encryption for VLAN "
797 "interface for vlan_id=%d",
798 sta->vlan_id);
799 }
800 }
801
802 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
803 HOSTAPD_LEVEL_DEBUG, "binding station to interface "
804 "'%s'", iface);
805
806 if (wpa_auth_sta_set_vlan(sta->wpa_sm, sta->vlan_id) < 0)
807 wpa_printf(MSG_INFO, "Failed to update VLAN-ID for WPA");
808
4781064b
JM
809 ret = hostapd_drv_set_sta_vlan(iface, hapd, sta->addr, sta->vlan_id);
810 if (ret < 0) {
811 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
812 HOSTAPD_LEVEL_DEBUG, "could not bind the STA "
813 "entry to vlan_id=%d", sta->vlan_id);
814 }
815 return ret;
816#else /* CONFIG_NO_VLAN */
817 return 0;
818#endif /* CONFIG_NO_VLAN */
ebfa2275 819}
a875087d
JL
820
821
822#ifdef CONFIG_IEEE80211W
823
824int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta)
825{
826 u32 tu;
4781064b
JM
827 struct os_reltime now, passed;
828 os_get_reltime(&now);
829 os_reltime_sub(&now, &sta->sa_query_start, &passed);
a875087d
JL
830 tu = (passed.sec * 1000000 + passed.usec) / 1024;
831 if (hapd->conf->assoc_sa_query_max_timeout < tu) {
832 hostapd_logger(hapd, sta->addr,
833 HOSTAPD_MODULE_IEEE80211,
834 HOSTAPD_LEVEL_DEBUG,
835 "association SA Query timed out");
836 sta->sa_query_timed_out = 1;
837 os_free(sta->sa_query_trans_id);
838 sta->sa_query_trans_id = NULL;
839 sta->sa_query_count = 0;
840 eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
841 return 1;
842 }
843
844 return 0;
845}
846
847
848static void ap_sa_query_timer(void *eloop_ctx, void *timeout_ctx)
849{
850 struct hostapd_data *hapd = eloop_ctx;
851 struct sta_info *sta = timeout_ctx;
852 unsigned int timeout, sec, usec;
853 u8 *trans_id, *nbuf;
854
855 if (sta->sa_query_count > 0 &&
856 ap_check_sa_query_timeout(hapd, sta))
857 return;
858
4781064b
JM
859 nbuf = os_realloc_array(sta->sa_query_trans_id,
860 sta->sa_query_count + 1,
861 WLAN_SA_QUERY_TR_ID_LEN);
a875087d
JL
862 if (nbuf == NULL)
863 return;
864 if (sta->sa_query_count == 0) {
865 /* Starting a new SA Query procedure */
4781064b 866 os_get_reltime(&sta->sa_query_start);
a875087d
JL
867 }
868 trans_id = nbuf + sta->sa_query_count * WLAN_SA_QUERY_TR_ID_LEN;
869 sta->sa_query_trans_id = nbuf;
870 sta->sa_query_count++;
871
872 os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN);
873
874 timeout = hapd->conf->assoc_sa_query_retry_timeout;
875 sec = ((timeout / 1000) * 1024) / 1000;
876 usec = (timeout % 1000) * 1024;
877 eloop_register_timeout(sec, usec, ap_sa_query_timer, hapd, sta);
878
879 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
880 HOSTAPD_LEVEL_DEBUG,
881 "association SA Query attempt %d", sta->sa_query_count);
882
883 ieee802_11_send_sa_query_req(hapd, sta->addr, trans_id);
884}
885
886
887void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
888{
889 ap_sa_query_timer(hapd, sta);
890}
891
892
893void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta)
894{
895 eloop_cancel_timeout(ap_sa_query_timer, hapd, sta);
896 os_free(sta->sa_query_trans_id);
897 sta->sa_query_trans_id = NULL;
898 sta->sa_query_count = 0;
899}
900
901#endif /* CONFIG_IEEE80211W */
4781064b
JM
902
903
904void ap_sta_set_authorized(struct hostapd_data *hapd, struct sta_info *sta,
905 int authorized)
906{
907 const u8 *dev_addr = NULL;
908 char buf[100];
909#ifdef CONFIG_P2P
910 u8 addr[ETH_ALEN];
911 u8 ip_addr_buf[4];
912#endif /* CONFIG_P2P */
913
914 if (!!authorized == !!(sta->flags & WLAN_STA_AUTHORIZED))
915 return;
916
917#ifdef CONFIG_P2P
918 if (hapd->p2p_group == NULL) {
919 if (sta->p2p_ie != NULL &&
920 p2p_parse_dev_addr_in_p2p_ie(sta->p2p_ie, addr) == 0)
921 dev_addr = addr;
922 } else
923 dev_addr = p2p_group_get_dev_addr(hapd->p2p_group, sta->addr);
924#endif /* CONFIG_P2P */
925
926 if (dev_addr)
927 os_snprintf(buf, sizeof(buf), MACSTR " p2p_dev_addr=" MACSTR,
928 MAC2STR(sta->addr), MAC2STR(dev_addr));
929 else
930 os_snprintf(buf, sizeof(buf), MACSTR, MAC2STR(sta->addr));
931
932 if (authorized) {
933 char ip_addr[100];
934 ip_addr[0] = '\0';
935#ifdef CONFIG_P2P
936 if (wpa_auth_get_ip_addr(sta->wpa_sm, ip_addr_buf) == 0) {
937 os_snprintf(ip_addr, sizeof(ip_addr),
938 " ip_addr=%u.%u.%u.%u",
939 ip_addr_buf[0], ip_addr_buf[1],
940 ip_addr_buf[2], ip_addr_buf[3]);
941 }
942#endif /* CONFIG_P2P */
943
944 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_CONNECTED "%s%s",
945 buf, ip_addr);
946
947 if (hapd->msg_ctx_parent &&
948 hapd->msg_ctx_parent != hapd->msg_ctx)
949 wpa_msg_no_global(hapd->msg_ctx_parent, MSG_INFO,
950 AP_STA_CONNECTED "%s%s",
951 buf, ip_addr);
952
953 sta->flags |= WLAN_STA_AUTHORIZED;
954 } else {
955 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_DISCONNECTED "%s", buf);
956
957 if (hapd->msg_ctx_parent &&
958 hapd->msg_ctx_parent != hapd->msg_ctx)
959 wpa_msg_no_global(hapd->msg_ctx_parent, MSG_INFO,
960 AP_STA_DISCONNECTED "%s", buf);
961
962 sta->flags &= ~WLAN_STA_AUTHORIZED;
963 }
964
965 if (hapd->sta_authorized_cb)
966 hapd->sta_authorized_cb(hapd->sta_authorized_cb_ctx,
967 sta->addr, authorized, dev_addr);
968}
969
970
971void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta,
972 const u8 *addr, u16 reason)
973{
974
975 if (sta == NULL && addr)
976 sta = ap_get_sta(hapd, addr);
977
978 if (addr)
979 hostapd_drv_sta_deauth(hapd, addr, reason);
980
981 if (sta == NULL)
982 return;
983 ap_sta_set_authorized(hapd, sta, 0);
984 wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH);
985 ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
986 sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
987 wpa_printf(MSG_DEBUG, "%s: reschedule ap_handle_timer timeout "
988 "for " MACSTR " (%d seconds - "
989 "AP_MAX_INACTIVITY_AFTER_DEAUTH)",
990 __func__, MAC2STR(sta->addr),
991 AP_MAX_INACTIVITY_AFTER_DEAUTH);
992 eloop_cancel_timeout(ap_handle_timer, hapd, sta);
993 eloop_register_timeout(AP_MAX_INACTIVITY_AFTER_DEAUTH, 0,
994 ap_handle_timer, hapd, sta);
995 sta->timeout_next = STA_REMOVE;
996
997 sta->deauth_reason = reason;
998 sta->flags |= WLAN_STA_PENDING_DEAUTH_CB;
999 eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
1000 eloop_register_timeout(hapd->iface->drv_flags &
1001 WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS ? 2 : 0, 0,
1002 ap_sta_deauth_cb_timeout, hapd, sta);
1003}
1004
1005
1006void ap_sta_deauth_cb(struct hostapd_data *hapd, struct sta_info *sta)
1007{
1008 if (!(sta->flags & WLAN_STA_PENDING_DEAUTH_CB)) {
1009 wpa_printf(MSG_DEBUG, "Ignore deauth cb for test frame");
1010 return;
1011 }
1012 sta->flags &= ~WLAN_STA_PENDING_DEAUTH_CB;
1013 eloop_cancel_timeout(ap_sta_deauth_cb_timeout, hapd, sta);
1014 ap_sta_deauth_cb_timeout(hapd, sta);
1015}
1016
1017
1018void ap_sta_disassoc_cb(struct hostapd_data *hapd, struct sta_info *sta)
1019{
1020 if (!(sta->flags & WLAN_STA_PENDING_DISASSOC_CB)) {
1021 wpa_printf(MSG_DEBUG, "Ignore disassoc cb for test frame");
1022 return;
1023 }
1024 sta->flags &= ~WLAN_STA_PENDING_DISASSOC_CB;
1025 eloop_cancel_timeout(ap_sta_disassoc_cb_timeout, hapd, sta);
1026 ap_sta_disassoc_cb_timeout(hapd, sta);
1027}
1028
1029
1030int ap_sta_flags_txt(u32 flags, char *buf, size_t buflen)
1031{
1032 int res;
1033
1034 buf[0] = '\0';
1035 res = os_snprintf(buf, buflen, "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
1036 (flags & WLAN_STA_AUTH ? "[AUTH]" : ""),
1037 (flags & WLAN_STA_ASSOC ? "[ASSOC]" : ""),
1038 (flags & WLAN_STA_AUTHORIZED ? "[AUTHORIZED]" : ""),
1039 (flags & WLAN_STA_PENDING_POLL ? "[PENDING_POLL" :
1040 ""),
1041 (flags & WLAN_STA_SHORT_PREAMBLE ?
1042 "[SHORT_PREAMBLE]" : ""),
1043 (flags & WLAN_STA_PREAUTH ? "[PREAUTH]" : ""),
1044 (flags & WLAN_STA_WMM ? "[WMM]" : ""),
1045 (flags & WLAN_STA_MFP ? "[MFP]" : ""),
1046 (flags & WLAN_STA_WPS ? "[WPS]" : ""),
1047 (flags & WLAN_STA_MAYBE_WPS ? "[MAYBE_WPS]" : ""),
1048 (flags & WLAN_STA_WDS ? "[WDS]" : ""),
1049 (flags & WLAN_STA_NONERP ? "[NonERP]" : ""),
1050 (flags & WLAN_STA_WPS2 ? "[WPS2]" : ""),
1051 (flags & WLAN_STA_GAS ? "[GAS]" : ""),
1052 (flags & WLAN_STA_VHT ? "[VHT]" : ""),
1053 (flags & WLAN_STA_WNM_SLEEP_MODE ?
1054 "[WNM_SLEEP_MODE]" : ""));
1055
1056 return res;
1057}