1 /*
2 * WPA Supplicant - Driver event processing
3 * Copyright (c) 2003-2012, 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 "includes.h"
10
11 #include "common.h"
12 #include "eapol_supp/eapol_supp_sm.h"
13 #include "rsn_supp/wpa.h"
14 #include "eloop.h"
15 #include "config.h"
16 #include "l2_packet/l2_packet.h"
17 #include "wpa_supplicant_i.h"
18 #include "driver_i.h"
19 #include "pcsc_funcs.h"
20 #include "rsn_supp/preauth.h"
21 #include "rsn_supp/pmksa_cache.h"
22 #include "common/wpa_ctrl.h"
23 #include "eap_peer/eap.h"
24 #include "ap/hostapd.h"
25 #include "p2p/p2p.h"
26 #include "wnm_sta.h"
27 #include "notify.h"
28 #include "common/ieee802_11_defs.h"
29 #include "common/ieee802_11_common.h"
30 #include "crypto/random.h"
31 #include "blacklist.h"
32 #include "wpas_glue.h"
33 #include "wps_supplicant.h"
34 #include "ibss_rsn.h"
35 #include "sme.h"
36 #include "gas_query.h"
37 #include "p2p_supplicant.h"
38 #include "bgscan.h"
39 #include "autoscan.h"
40 #include "ap.h"
41 #include "bss.h"
42 #include "scan.h"
43 #include "offchannel.h"
44 #include "interworking.h"
45
46
wpas_temp_disabled(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid)47 static int wpas_temp_disabled(struct wpa_supplicant *wpa_s,
48 struct wpa_ssid *ssid)
49 {
50 struct os_time now;
51
52 if (ssid == NULL || ssid->disabled_until.sec == 0)
53 return 0;
54
55 os_get_time(&now);
56 if (ssid->disabled_until.sec > now.sec)
57 return ssid->disabled_until.sec - now.sec;
58
59 wpas_clear_temp_disabled(wpa_s, ssid, 0);
60
61 return 0;
62 }
63
64
wpa_supplicant_select_config(struct wpa_supplicant * wpa_s)65 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
66 {
67 struct wpa_ssid *ssid, *old_ssid;
68 int res;
69
70 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid)
71 return 0;
72
73 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
74 "information");
75 ssid = wpa_supplicant_get_ssid(wpa_s);
76 if (ssid == NULL) {
77 wpa_msg(wpa_s, MSG_INFO,
78 "No network configuration found for the current AP");
79 return -1;
80 }
81
82 if (wpas_network_disabled(wpa_s, ssid)) {
83 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
84 return -1;
85 }
86
87 res = wpas_temp_disabled(wpa_s, ssid);
88 if (res > 0) {
89 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
90 "disabled for %d second(s)", res);
91 return -1;
92 }
93
94 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
95 "current AP");
96 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
97 u8 wpa_ie[80];
98 size_t wpa_ie_len = sizeof(wpa_ie);
99 wpa_supplicant_set_suites(wpa_s, NULL, ssid,
100 wpa_ie, &wpa_ie_len);
101 } else {
102 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
103 }
104
105 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
106 eapol_sm_invalidate_cached_session(wpa_s->eapol);
107 old_ssid = wpa_s->current_ssid;
108 wpa_s->current_ssid = ssid;
109 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
110 wpa_supplicant_initiate_eapol(wpa_s);
111 if (old_ssid != wpa_s->current_ssid)
112 wpas_notify_network_changed(wpa_s);
113
114 return 0;
115 }
116
117
wpa_supplicant_stop_countermeasures(void * eloop_ctx,void * sock_ctx)118 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
119 {
120 struct wpa_supplicant *wpa_s = eloop_ctx;
121
122 if (wpa_s->countermeasures) {
123 wpa_s->countermeasures = 0;
124 wpa_drv_set_countermeasures(wpa_s, 0);
125 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
126 wpa_supplicant_req_scan(wpa_s, 0, 0);
127 }
128 }
129
130
wpa_supplicant_mark_disassoc(struct wpa_supplicant * wpa_s)131 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
132 {
133 int bssid_changed;
134
135 wnm_bss_keep_alive_deinit(wpa_s);
136
137 #ifdef CONFIG_IBSS_RSN
138 ibss_rsn_deinit(wpa_s->ibss_rsn);
139 wpa_s->ibss_rsn = NULL;
140 #endif /* CONFIG_IBSS_RSN */
141
142 #ifdef CONFIG_AP
143 wpa_supplicant_ap_deinit(wpa_s);
144 #endif /* CONFIG_AP */
145
146 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
147 return;
148
149 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
150 #ifdef ANDROID
151 wpa_s->conf->ap_scan = DEFAULT_AP_SCAN;
152 #endif
153 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
154 os_memset(wpa_s->bssid, 0, ETH_ALEN);
155 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
156 #ifdef CONFIG_SME
157 wpa_s->sme.prev_bssid_set = 0;
158 #endif /* CONFIG_SME */
159 #ifdef CONFIG_P2P
160 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
161 #endif /* CONFIG_P2P */
162 wpa_s->current_bss = NULL;
163 wpa_s->assoc_freq = 0;
164 #ifdef CONFIG_IEEE80211R
165 #ifdef CONFIG_SME
166 if (wpa_s->sme.ft_ies)
167 sme_update_ft_ies(wpa_s, NULL, NULL, 0);
168 #endif /* CONFIG_SME */
169 #endif /* CONFIG_IEEE80211R */
170
171 if (bssid_changed)
172 wpas_notify_bssid_changed(wpa_s);
173
174 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
175 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
176 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
177 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
178 wpa_s->ap_ies_from_associnfo = 0;
179 wpa_s->current_ssid = NULL;
180 wpa_s->key_mgmt = 0;
181 }
182
183
wpa_find_assoc_pmkid(struct wpa_supplicant * wpa_s)184 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
185 {
186 struct wpa_ie_data ie;
187 int pmksa_set = -1;
188 size_t i;
189
190 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
191 ie.pmkid == NULL)
192 return;
193
194 for (i = 0; i < ie.num_pmkid; i++) {
195 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
196 ie.pmkid + i * PMKID_LEN,
197 NULL, NULL, 0);
198 if (pmksa_set == 0) {
199 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
200 break;
201 }
202 }
203
204 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
205 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
206 }
207
208
wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant * wpa_s,union wpa_event_data * data)209 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
210 union wpa_event_data *data)
211 {
212 if (data == NULL) {
213 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
214 "event");
215 return;
216 }
217 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
218 " index=%d preauth=%d",
219 MAC2STR(data->pmkid_candidate.bssid),
220 data->pmkid_candidate.index,
221 data->pmkid_candidate.preauth);
222
223 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
224 data->pmkid_candidate.index,
225 data->pmkid_candidate.preauth);
226 }
227
228
wpa_supplicant_dynamic_keys(struct wpa_supplicant * wpa_s)229 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
230 {
231 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
232 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
233 return 0;
234
235 #ifdef IEEE8021X_EAPOL
236 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
237 wpa_s->current_ssid &&
238 !(wpa_s->current_ssid->eapol_flags &
239 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
240 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
241 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
242 * plaintext or static WEP keys). */
243 return 0;
244 }
245 #endif /* IEEE8021X_EAPOL */
246
247 return 1;
248 }
249
250
251 /**
252 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
253 * @wpa_s: pointer to wpa_supplicant data
254 * @ssid: Configuration data for the network
255 * Returns: 0 on success, -1 on failure
256 *
257 * This function is called when starting authentication with a network that is
258 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
259 */
wpa_supplicant_scard_init(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid)260 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
261 struct wpa_ssid *ssid)
262 {
263 #ifdef IEEE8021X_EAPOL
264 #ifdef PCSC_FUNCS
265 int aka = 0, sim = 0, type;
266
267 if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL)
268 return 0;
269
270 if (ssid->eap.eap_methods == NULL) {
271 sim = 1;
272 aka = 1;
273 } else {
274 struct eap_method_type *eap = ssid->eap.eap_methods;
275 while (eap->vendor != EAP_VENDOR_IETF ||
276 eap->method != EAP_TYPE_NONE) {
277 if (eap->vendor == EAP_VENDOR_IETF) {
278 if (eap->method == EAP_TYPE_SIM)
279 sim = 1;
280 else if (eap->method == EAP_TYPE_AKA ||
281 eap->method == EAP_TYPE_AKA_PRIME)
282 aka = 1;
283 }
284 eap++;
285 }
286 }
287
288 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
289 sim = 0;
290 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
291 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
292 NULL)
293 aka = 0;
294
295 if (!sim && !aka) {
296 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
297 "use SIM, but neither EAP-SIM nor EAP-AKA are "
298 "enabled");
299 return 0;
300 }
301
302 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
303 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
304 if (sim && aka)
305 type = SCARD_TRY_BOTH;
306 else if (aka)
307 type = SCARD_USIM_ONLY;
308 else
309 type = SCARD_GSM_SIM_ONLY;
310
311 wpa_s->scard = scard_init(type, NULL);
312 if (wpa_s->scard == NULL) {
313 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
314 "(pcsc-lite)");
315 return -1;
316 }
317 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
318 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
319 #endif /* PCSC_FUNCS */
320 #endif /* IEEE8021X_EAPOL */
321
322 return 0;
323 }
324
325
326 #ifndef CONFIG_NO_SCAN_PROCESSING
wpa_supplicant_match_privacy(struct wpa_bss * bss,struct wpa_ssid * ssid)327 static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
328 struct wpa_ssid *ssid)
329 {
330 int i, privacy = 0;
331
332 if (ssid->mixed_cell)
333 return 1;
334
335 #ifdef CONFIG_WPS
336 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
337 return 1;
338 #endif /* CONFIG_WPS */
339
340 for (i = 0; i < NUM_WEP_KEYS; i++) {
341 if (ssid->wep_key_len[i]) {
342 privacy = 1;
343 break;
344 }
345 }
346 #ifdef IEEE8021X_EAPOL
347 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
348 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
349 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
350 privacy = 1;
351 #endif /* IEEE8021X_EAPOL */
352
353 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
354 privacy = 1;
355
356 if (bss->caps & IEEE80211_CAP_PRIVACY)
357 return privacy;
358 return !privacy;
359 }
360
361
wpa_supplicant_ssid_bss_match(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,struct wpa_bss * bss)362 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
363 struct wpa_ssid *ssid,
364 struct wpa_bss *bss)
365 {
366 struct wpa_ie_data ie;
367 int proto_match = 0;
368 const u8 *rsn_ie, *wpa_ie;
369 int ret;
370 int wep_ok;
371
372 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
373 if (ret >= 0)
374 return ret;
375
376 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
377 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
378 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
379 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
380 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
381
382 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
383 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
384 proto_match++;
385
386 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
387 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse "
388 "failed");
389 break;
390 }
391
392 if (wep_ok &&
393 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
394 {
395 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
396 "in RSN IE");
397 return 1;
398 }
399
400 if (!(ie.proto & ssid->proto)) {
401 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto "
402 "mismatch");
403 break;
404 }
405
406 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
407 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK "
408 "cipher mismatch");
409 break;
410 }
411
412 if (!(ie.group_cipher & ssid->group_cipher)) {
413 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK "
414 "cipher mismatch");
415 break;
416 }
417
418 if (!(ie.key_mgmt & ssid->key_mgmt)) {
419 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt "
420 "mismatch");
421 break;
422 }
423
424 #ifdef CONFIG_IEEE80211W
425 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
426 ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) {
427 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt "
428 "frame protection");
429 break;
430 }
431 #endif /* CONFIG_IEEE80211W */
432
433 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE");
434 return 1;
435 }
436
437 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
438 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
439 proto_match++;
440
441 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
442 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse "
443 "failed");
444 break;
445 }
446
447 if (wep_ok &&
448 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
449 {
450 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
451 "in WPA IE");
452 return 1;
453 }
454
455 if (!(ie.proto & ssid->proto)) {
456 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto "
457 "mismatch");
458 break;
459 }
460
461 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
462 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK "
463 "cipher mismatch");
464 break;
465 }
466
467 if (!(ie.group_cipher & ssid->group_cipher)) {
468 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK "
469 "cipher mismatch");
470 break;
471 }
472
473 if (!(ie.key_mgmt & ssid->key_mgmt)) {
474 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt "
475 "mismatch");
476 break;
477 }
478
479 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE");
480 return 1;
481 }
482
483 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
484 !rsn_ie) {
485 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X");
486 return 1;
487 }
488
489 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
490 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
491 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match");
492 return 0;
493 }
494
495 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
496 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
497 return 1;
498 }
499
500 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with "
501 "WPA/WPA2");
502
503 return 0;
504 }
505
506
freq_allowed(int * freqs,int freq)507 static int freq_allowed(int *freqs, int freq)
508 {
509 int i;
510
511 if (freqs == NULL)
512 return 1;
513
514 for (i = 0; freqs[i]; i++)
515 if (freqs[i] == freq)
516 return 1;
517 return 0;
518 }
519
520
ht_supported(const struct hostapd_hw_modes * mode)521 static int ht_supported(const struct hostapd_hw_modes *mode)
522 {
523 if (!(mode->flags & HOSTAPD_MODE_FLAG_HT_INFO_KNOWN)) {
524 /*
525 * The driver did not indicate whether it supports HT. Assume
526 * it does to avoid connection issues.
527 */
528 return 1;
529 }
530
531 /*
532 * IEEE Std 802.11n-2009 20.1.1:
533 * An HT non-AP STA shall support all EQM rates for one spatial stream.
534 */
535 return mode->mcs_set[0] == 0xff;
536 }
537
538
rate_match(struct wpa_supplicant * wpa_s,struct wpa_bss * bss)539 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
540 {
541 const struct hostapd_hw_modes *mode = NULL, *modes;
542 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
543 const u8 *rate_ie;
544 int i, j, k;
545
546 if (bss->freq == 0)
547 return 1; /* Cannot do matching without knowing band */
548
549 modes = wpa_s->hw.modes;
550 if (modes == NULL) {
551 /*
552 * The driver does not provide any additional information
553 * about the utilized hardware, so allow the connection attempt
554 * to continue.
555 */
556 return 1;
557 }
558
559 for (i = 0; i < wpa_s->hw.num_modes; i++) {
560 for (j = 0; j < modes[i].num_channels; j++) {
561 int freq = modes[i].channels[j].freq;
562 if (freq == bss->freq) {
563 if (mode &&
564 mode->mode == HOSTAPD_MODE_IEEE80211G)
565 break; /* do not allow 802.11b replace
566 * 802.11g */
567 mode = &modes[i];
568 break;
569 }
570 }
571 }
572
573 if (mode == NULL)
574 return 0;
575
576 for (i = 0; i < (int) sizeof(scan_ie); i++) {
577 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
578 if (rate_ie == NULL)
579 continue;
580
581 for (j = 2; j < rate_ie[1] + 2; j++) {
582 int flagged = !!(rate_ie[j] & 0x80);
583 int r = (rate_ie[j] & 0x7f) * 5;
584
585 /*
586 * IEEE Std 802.11n-2009 7.3.2.2:
587 * The new BSS Membership selector value is encoded
588 * like a legacy basic rate, but it is not a rate and
589 * only indicates if the BSS members are required to
590 * support the mandatory features of Clause 20 [HT PHY]
591 * in order to join the BSS.
592 */
593 if (flagged && ((rate_ie[j] & 0x7f) ==
594 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
595 if (!ht_supported(mode)) {
596 wpa_dbg(wpa_s, MSG_DEBUG,
597 " hardware does not support "
598 "HT PHY");
599 return 0;
600 }
601 continue;
602 }
603
604 if (!flagged)
605 continue;
606
607 /* check for legacy basic rates */
608 for (k = 0; k < mode->num_rates; k++) {
609 if (mode->rates[k] == r)
610 break;
611 }
612 if (k == mode->num_rates) {
613 /*
614 * IEEE Std 802.11-2007 7.3.2.2 demands that in
615 * order to join a BSS all required rates
616 * have to be supported by the hardware.
617 */
618 wpa_dbg(wpa_s, MSG_DEBUG, " hardware does "
619 "not support required rate %d.%d Mbps",
620 r / 10, r % 10);
621 return 0;
622 }
623 }
624 }
625
626 return 1;
627 }
628
629
wpa_scan_res_match(struct wpa_supplicant * wpa_s,int i,struct wpa_bss * bss,struct wpa_ssid * group)630 static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
631 int i, struct wpa_bss *bss,
632 struct wpa_ssid *group)
633 {
634 u8 wpa_ie_len, rsn_ie_len;
635 int wpa;
636 struct wpa_blacklist *e;
637 const u8 *ie;
638 struct wpa_ssid *ssid;
639
640 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
641 wpa_ie_len = ie ? ie[1] : 0;
642
643 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
644 rsn_ie_len = ie ? ie[1] : 0;
645
646 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
647 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s",
648 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len),
649 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
650 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "");
651
652 e = wpa_blacklist_get(wpa_s, bss->bssid);
653 if (e) {
654 int limit = 1;
655 if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
656 /*
657 * When only a single network is enabled, we can
658 * trigger blacklisting on the first failure. This
659 * should not be done with multiple enabled networks to
660 * avoid getting forced to move into a worse ESS on
661 * single error if there are no other BSSes of the
662 * current ESS.
663 */
664 limit = 0;
665 }
666 if (e->count > limit) {
667 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
668 "(count=%d limit=%d)", e->count, limit);
669 return NULL;
670 }
671 }
672
673 if (bss->ssid_len == 0) {
674 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
675 return NULL;
676 }
677
678 wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
679
680 for (ssid = group; ssid; ssid = ssid->pnext) {
681 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
682 int res;
683
684 if (wpas_network_disabled(wpa_s, ssid)) {
685 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
686 continue;
687 }
688
689 res = wpas_temp_disabled(wpa_s, ssid);
690 if (res > 0) {
691 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled "
692 "temporarily for %d second(s)", res);
693 continue;
694 }
695
696 #ifdef CONFIG_WPS
697 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
698 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
699 "(WPS)");
700 continue;
701 }
702
703 if (wpa && ssid->ssid_len == 0 &&
704 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
705 check_ssid = 0;
706
707 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
708 /* Only allow wildcard SSID match if an AP
709 * advertises active WPS operation that matches
710 * with our mode. */
711 check_ssid = 1;
712 if (ssid->ssid_len == 0 &&
713 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
714 check_ssid = 0;
715 }
716 #endif /* CONFIG_WPS */
717
718 if (ssid->bssid_set && ssid->ssid_len == 0 &&
719 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
720 check_ssid = 0;
721
722 if (check_ssid &&
723 (bss->ssid_len != ssid->ssid_len ||
724 os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) {
725 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
726 continue;
727 }
728
729 if (ssid->bssid_set &&
730 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
731 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
732 continue;
733 }
734
735 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
736 continue;
737
738 if (!wpa &&
739 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
740 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
741 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
742 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network "
743 "not allowed");
744 continue;
745 }
746
747 if (!wpa_supplicant_match_privacy(bss, ssid)) {
748 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy "
749 "mismatch");
750 continue;
751 }
752
753 if (bss->caps & IEEE80211_CAP_IBSS) {
754 wpa_dbg(wpa_s, MSG_DEBUG, " skip - IBSS (adhoc) "
755 "network");
756 continue;
757 }
758
759 if (!freq_allowed(ssid->freq_list, bss->freq)) {
760 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not "
761 "allowed");
762 continue;
763 }
764
765 if (!rate_match(wpa_s, bss)) {
766 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do "
767 "not match");
768 continue;
769 }
770
771 #ifdef CONFIG_P2P
772 /*
773 * TODO: skip the AP if its P2P IE has Group Formation
774 * bit set in the P2P Group Capability Bitmap and we
775 * are not in Group Formation with that device.
776 */
777 #endif /* CONFIG_P2P */
778
779 /* Matching configuration found */
780 return ssid;
781 }
782
783 /* No matching configuration found */
784 return NULL;
785 }
786
787
788 static struct wpa_bss *
wpa_supplicant_select_bss(struct wpa_supplicant * wpa_s,struct wpa_ssid * group,struct wpa_ssid ** selected_ssid)789 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
790 struct wpa_ssid *group,
791 struct wpa_ssid **selected_ssid)
792 {
793 unsigned int i;
794
795 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
796 group->priority);
797
798 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
799 struct wpa_bss *bss = wpa_s->last_scan_res[i];
800 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group);
801 if (!*selected_ssid)
802 continue;
803 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
804 " ssid='%s'",
805 MAC2STR(bss->bssid),
806 wpa_ssid_txt(bss->ssid, bss->ssid_len));
807 return bss;
808 }
809
810 return NULL;
811 }
812
813
814 static struct wpa_bss *
wpa_supplicant_pick_network(struct wpa_supplicant * wpa_s,struct wpa_ssid ** selected_ssid)815 wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
816 struct wpa_ssid **selected_ssid)
817 {
818 struct wpa_bss *selected = NULL;
819 int prio;
820
821 if (wpa_s->last_scan_res == NULL ||
822 wpa_s->last_scan_res_used == 0)
823 return NULL; /* no scan results from last update */
824
825 while (selected == NULL) {
826 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
827 selected = wpa_supplicant_select_bss(
828 wpa_s, wpa_s->conf->pssid[prio],
829 selected_ssid);
830 if (selected)
831 break;
832 }
833
834 if (selected == NULL && wpa_s->blacklist &&
835 !wpa_s->countermeasures) {
836 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
837 "blacklist and try again");
838 wpa_blacklist_clear(wpa_s);
839 wpa_s->blacklist_cleared++;
840 } else if (selected == NULL)
841 break;
842 }
843
844 return selected;
845 }
846
847
wpa_supplicant_req_new_scan(struct wpa_supplicant * wpa_s,int timeout_sec,int timeout_usec)848 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
849 int timeout_sec, int timeout_usec)
850 {
851 if (!wpa_supplicant_enabled_networks(wpa_s)) {
852 /*
853 * No networks are enabled; short-circuit request so
854 * we don't wait timeout seconds before transitioning
855 * to INACTIVE state.
856 */
857 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
858 "since there are no enabled networks");
859 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
860 #ifdef CONFIG_P2P
861 wpa_s->sta_scan_pending = 0;
862 #endif /* CONFIG_P2P */
863 return;
864 }
865 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
866 }
867
868
wpa_supplicant_connect(struct wpa_supplicant * wpa_s,struct wpa_bss * selected,struct wpa_ssid * ssid)869 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
870 struct wpa_bss *selected,
871 struct wpa_ssid *ssid)
872 {
873 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
874 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
875 "PBC session overlap");
876 #ifdef CONFIG_P2P
877 if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1)
878 return -1;
879 #endif /* CONFIG_P2P */
880
881 #ifdef CONFIG_WPS
882 wpas_wps_cancel(wpa_s);
883 #endif /* CONFIG_WPS */
884 return -1;
885 }
886
887 /*
888 * Do not trigger new association unless the BSSID has changed or if
889 * reassociation is requested. If we are in process of associating with
890 * the selected BSSID, do not trigger new attempt.
891 */
892 if (wpa_s->reassociate ||
893 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
894 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
895 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
896 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
897 0))) {
898 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
899 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
900 return 0;
901 }
902 wpa_msg(wpa_s, MSG_DEBUG, "Request association: "
903 "reassociate: %d selected: "MACSTR " bssid: " MACSTR
904 " pending: " MACSTR " wpa_state: %s",
905 wpa_s->reassociate, MAC2STR(selected->bssid),
906 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
907 wpa_supplicant_state_txt(wpa_s->wpa_state));
908 wpa_supplicant_associate(wpa_s, selected, ssid);
909 } else {
910 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated with the "
911 "selected AP");
912 }
913
914 return 0;
915 }
916
917
918 static struct wpa_ssid *
wpa_supplicant_pick_new_network(struct wpa_supplicant * wpa_s)919 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
920 {
921 int prio;
922 struct wpa_ssid *ssid;
923
924 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
925 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
926 {
927 if (wpas_network_disabled(wpa_s, ssid))
928 continue;
929 if (ssid->mode == IEEE80211_MODE_IBSS ||
930 ssid->mode == IEEE80211_MODE_AP)
931 return ssid;
932 }
933 }
934 return NULL;
935 }
936
937
938 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
939 * on BSS added and BSS changed events */
wpa_supplicant_rsn_preauth_scan_results(struct wpa_supplicant * wpa_s)940 static void wpa_supplicant_rsn_preauth_scan_results(
941 struct wpa_supplicant *wpa_s)
942 {
943 struct wpa_bss *bss;
944
945 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
946 return;
947
948 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
949 const u8 *ssid, *rsn;
950
951 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
952 if (ssid == NULL)
953 continue;
954
955 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
956 if (rsn == NULL)
957 continue;
958
959 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
960 }
961
962 }
963
964
wpa_supplicant_need_to_roam(struct wpa_supplicant * wpa_s,struct wpa_bss * selected,struct wpa_ssid * ssid)965 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
966 struct wpa_bss *selected,
967 struct wpa_ssid *ssid)
968 {
969 struct wpa_bss *current_bss = NULL;
970 int min_diff;
971
972 if (wpa_s->reassociate)
973 return 1; /* explicit request to reassociate */
974 if (wpa_s->wpa_state < WPA_ASSOCIATED)
975 return 1; /* we are not associated; continue */
976 if (wpa_s->current_ssid == NULL)
977 return 1; /* unknown current SSID */
978 if (wpa_s->current_ssid != ssid)
979 return 1; /* different network block */
980
981 if (wpas_driver_bss_selection(wpa_s))
982 return 0; /* Driver-based roaming */
983
984 if (wpa_s->current_ssid->ssid)
985 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
986 wpa_s->current_ssid->ssid,
987 wpa_s->current_ssid->ssid_len);
988 if (!current_bss)
989 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
990
991 if (!current_bss)
992 return 1; /* current BSS not seen in scan results */
993
994 if (current_bss == selected)
995 return 0;
996
997 if (selected->last_update_idx > current_bss->last_update_idx)
998 return 1; /* current BSS not seen in the last scan */
999
1000 #ifndef CONFIG_NO_ROAMING
1001 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1002 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
1003 MAC2STR(current_bss->bssid), current_bss->level);
1004 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d",
1005 MAC2STR(selected->bssid), selected->level);
1006
1007 if (wpa_s->current_ssid->bssid_set &&
1008 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1009 0) {
1010 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1011 "has preferred BSSID");
1012 return 1;
1013 }
1014
1015 min_diff = 2;
1016 if (current_bss->level < 0) {
1017 if (current_bss->level < -85)
1018 min_diff = 1;
1019 else if (current_bss->level < -80)
1020 min_diff = 2;
1021 else if (current_bss->level < -75)
1022 min_diff = 3;
1023 else if (current_bss->level < -70)
1024 min_diff = 4;
1025 else
1026 min_diff = 5;
1027 }
1028 if (abs(current_bss->level - selected->level) < min_diff) {
1029 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
1030 "in signal level");
1031 return 0;
1032 }
1033
1034 return 1;
1035 #else /* CONFIG_NO_ROAMING */
1036 return 0;
1037 #endif /* CONFIG_NO_ROAMING */
1038 }
1039
1040
1041 /* Return != 0 if no scan results could be fetched or if scan results should not
1042 * be shared with other virtual interfaces. */
1043 #ifdef ANDROID_P2P
_wpa_supplicant_event_scan_results(struct wpa_supplicant * wpa_s,union wpa_event_data * data,int suppress_event)1044 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1045 union wpa_event_data *data, int suppress_event)
1046 #else
1047 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1048 union wpa_event_data *data)
1049 #endif
1050 {
1051 struct wpa_scan_results *scan_res;
1052 int ap = 0;
1053 #ifndef CONFIG_NO_RANDOM_POOL
1054 size_t i, num;
1055 #endif /* CONFIG_NO_RANDOM_POOL */
1056
1057 #ifdef CONFIG_AP
1058 if (wpa_s->ap_iface)
1059 ap = 1;
1060 #endif /* CONFIG_AP */
1061
1062 wpa_supplicant_notify_scanning(wpa_s, 0);
1063
1064 #ifdef CONFIG_P2P
1065 if (wpa_s->global->p2p_cb_on_scan_complete &&
1066 !wpa_s->global->p2p_disabled &&
1067 wpa_s->global->p2p != NULL && !wpa_s->sta_scan_pending &&
1068 !wpa_s->scan_res_handler) {
1069 wpa_s->global->p2p_cb_on_scan_complete = 0;
1070 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) {
1071 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation "
1072 "stopped scan processing");
1073 wpa_s->sta_scan_pending = 1;
1074 wpa_supplicant_req_scan(wpa_s, 5, 0);
1075 return -1;
1076 }
1077 }
1078 wpa_s->sta_scan_pending = 0;
1079 #endif /* CONFIG_P2P */
1080
1081 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1082 data ? &data->scan_info :
1083 NULL, 1);
1084 if (scan_res == NULL) {
1085 if (wpa_s->conf->ap_scan == 2 || ap)
1086 return -1;
1087 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1088 "scanning again");
1089 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1090 return -1;
1091 }
1092
1093 #ifndef CONFIG_NO_RANDOM_POOL
1094 num = scan_res->num;
1095 if (num > 10)
1096 num = 10;
1097 for (i = 0; i < num; i++) {
1098 u8 buf[5];
1099 struct wpa_scan_res *res = scan_res->res[i];
1100 buf[0] = res->bssid[5];
1101 buf[1] = res->qual & 0xff;
1102 buf[2] = res->noise & 0xff;
1103 buf[3] = res->level & 0xff;
1104 buf[4] = res->tsf & 0xff;
1105 random_add_randomness(buf, sizeof(buf));
1106 }
1107 #endif /* CONFIG_NO_RANDOM_POOL */
1108
1109 if (wpa_s->scan_res_handler) {
1110 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1111 struct wpa_scan_results *scan_res);
1112
1113 scan_res_handler = wpa_s->scan_res_handler;
1114 wpa_s->scan_res_handler = NULL;
1115 scan_res_handler(wpa_s, scan_res);
1116
1117 wpa_scan_results_free(scan_res);
1118 return -2;
1119 }
1120
1121 if (ap) {
1122 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
1123 #ifdef CONFIG_AP
1124 if (wpa_s->ap_iface->scan_cb)
1125 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1126 #endif /* CONFIG_AP */
1127 wpa_scan_results_free(scan_res);
1128 return 0;
1129 }
1130 #ifdef ANDROID_P2P
1131 if(!suppress_event)
1132 {
1133 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available");
1134 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1135 wpas_notify_scan_results(wpa_s);
1136 }
1137 #else
1138 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available");
1139 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1140 wpas_notify_scan_results(wpa_s);
1141 #endif
1142
1143 wpas_notify_scan_done(wpa_s, 1);
1144
1145 if (sme_proc_obss_scan(wpa_s) > 0) {
1146 wpa_scan_results_free(scan_res);
1147 return 0;
1148 }
1149
1150 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) {
1151 wpa_scan_results_free(scan_res);
1152 return 0;
1153 }
1154
1155 if (autoscan_notify_scan(wpa_s, scan_res)) {
1156 wpa_scan_results_free(scan_res);
1157 return 0;
1158 }
1159
1160 if (wpa_s->disconnected) {
1161 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1162 wpa_scan_results_free(scan_res);
1163 return 0;
1164 }
1165
1166 if (!wpas_driver_bss_selection(wpa_s) &&
1167 bgscan_notify_scan(wpa_s, scan_res) == 1) {
1168 wpa_scan_results_free(scan_res);
1169 return 0;
1170 }
1171
1172 wpas_wps_update_ap_info(wpa_s, scan_res);
1173
1174 wpa_scan_results_free(scan_res);
1175
1176 return wpas_select_network_from_last_scan(wpa_s);
1177 }
1178
1179
wpas_select_network_from_last_scan(struct wpa_supplicant * wpa_s)1180 int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s)
1181 {
1182 struct wpa_bss *selected;
1183 struct wpa_ssid *ssid = NULL;
1184
1185 selected = wpa_supplicant_pick_network(wpa_s, &ssid);
1186
1187 if (selected) {
1188 int skip;
1189 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
1190 if (skip) {
1191 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1192 return 0;
1193 }
1194
1195 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1196 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1197 return -1;
1198 }
1199 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1200 /*
1201 * Do not notify other virtual radios of scan results since we do not
1202 * want them to start other associations at the same time.
1203 */
1204 return 1;
1205 } else {
1206 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
1207 ssid = wpa_supplicant_pick_new_network(wpa_s);
1208 if (ssid) {
1209 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
1210 wpa_supplicant_associate(wpa_s, NULL, ssid);
1211 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1212 } else {
1213 int timeout_sec = wpa_s->scan_interval;
1214 int timeout_usec = 0;
1215 #ifdef CONFIG_P2P
1216 if (wpas_p2p_scan_no_go_seen(wpa_s) == 1)
1217 return 0;
1218
1219 if (wpa_s->p2p_in_provisioning) {
1220 /*
1221 * Use shorter wait during P2P Provisioning
1222 * state to speed up group formation.
1223 */
1224 timeout_sec = 0;
1225 timeout_usec = 250000;
1226 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1227 timeout_usec);
1228 return 0;
1229 }
1230 #endif /* CONFIG_P2P */
1231 #ifdef CONFIG_INTERWORKING
1232 if (wpa_s->conf->auto_interworking &&
1233 wpa_s->conf->interworking &&
1234 wpa_s->conf->cred) {
1235 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
1236 "start ANQP fetch since no matching "
1237 "networks found");
1238 wpa_s->network_select = 1;
1239 wpa_s->auto_network_select = 1;
1240 interworking_start_fetch_anqp(wpa_s);
1241 return 1;
1242 }
1243 #endif /* CONFIG_INTERWORKING */
1244 if (wpa_supplicant_req_sched_scan(wpa_s))
1245 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1246 timeout_usec);
1247 }
1248 }
1249 return 0;
1250 }
1251
1252
wpa_supplicant_event_scan_results(struct wpa_supplicant * wpa_s,union wpa_event_data * data)1253 static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1254 union wpa_event_data *data)
1255 {
1256 const char *rn, *rn2;
1257 struct wpa_supplicant *ifs;
1258 #ifdef ANDROID_P2P
1259 if (_wpa_supplicant_event_scan_results(wpa_s, data, 0) != 0) {
1260 #else
1261 if (_wpa_supplicant_event_scan_results(wpa_s, data) != 0) {
1262 #endif
1263 /*
1264 * If no scan results could be fetched, then no need to
1265 * notify those interfaces that did not actually request
1266 * this scan. Similarly, if scan results started a new operation on this
1267 * interface, do not notify other interfaces to avoid concurrent
1268 * operations during a connection attempt.
1269 */
1270 return;
1271 }
1272
1273 /*
1274 * Check other interfaces to see if they have the same radio-name. If
1275 * so, they get updated with this same scan info.
1276 */
1277 if (!wpa_s->driver->get_radio_name)
1278 return;
1279
1280 rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv);
1281 if (rn == NULL || rn[0] == '\0')
1282 return;
1283
1284 wpa_dbg(wpa_s, MSG_DEBUG, "Checking for other virtual interfaces "
1285 "sharing same radio (%s) in event_scan_results", rn);
1286
1287 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
1288 if (ifs == wpa_s || !ifs->driver->get_radio_name)
1289 continue;
1290
1291 rn2 = ifs->driver->get_radio_name(ifs->drv_priv);
1292 if (rn2 && os_strcmp(rn, rn2) == 0) {
1293 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1294 "sibling", ifs->ifname);
1295 #ifdef ANDROID_P2P
1296 if ( (ifs->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) || (ifs->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)) {
1297 /* Do not update the scan results from STA interface to p2p interfaces */
1298 wpa_printf(MSG_DEBUG, "Not Updating scan results on interface %s from "
1299 "sibling %s", ifs->ifname, wpa_s->ifname);
1300 continue;
1301 }
1302 else {
1303 /* P2P_FIND will result in too many SCAN_RESULT_EVENTS within
1304 * no time. Avoid announcing it to application as it may not
1305 * be that useful (since results will be that of only 1,6,11).
1306 * over to any other interface as it
1307 */
1308 if(p2p_search_in_progress(wpa_s->global->p2p))
1309 _wpa_supplicant_event_scan_results(ifs, data, 1);
1310 else
1311 _wpa_supplicant_event_scan_results(ifs, data, 0);
1312 }
1313 #else
1314 _wpa_supplicant_event_scan_results(ifs, data);
1315 #endif
1316 }
1317 }
1318 }
1319
1320 #endif /* CONFIG_NO_SCAN_PROCESSING */
1321
1322
1323 #ifdef CONFIG_WNM
1324
1325 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
1326 {
1327 struct wpa_supplicant *wpa_s = eloop_ctx;
1328
1329 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1330 return;
1331
1332 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1333 MAC2STR(wpa_s->bssid));
1334 /* TODO: could skip this if normal data traffic has been sent */
1335 /* TODO: Consider using some more appropriate data frame for this */
1336 if (wpa_s->l2)
1337 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800, (u8 *) "", 0);
1338
1339 #ifdef CONFIG_SME
1340 if (wpa_s->sme.bss_max_idle_period) {
1341 unsigned int msec;
1342 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1343 if (msec > 100)
1344 msec -= 100;
1345 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1346 wnm_bss_keep_alive, wpa_s, NULL);
1347 }
1348 #endif /* CONFIG_SME */
1349 }
1350
1351
1352 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1353 const u8 *ies, size_t ies_len)
1354 {
1355 struct ieee802_11_elems elems;
1356
1357 if (ies == NULL)
1358 return;
1359
1360 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1361 return;
1362
1363 #ifdef CONFIG_SME
1364 if (elems.bss_max_idle_period) {
1365 unsigned int msec;
1366 wpa_s->sme.bss_max_idle_period =
1367 WPA_GET_LE16(elems.bss_max_idle_period);
1368 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1369 "TU)%s", wpa_s->sme.bss_max_idle_period,
1370 (elems.bss_max_idle_period[2] & 0x01) ?
1371 " (protected keep-live required)" : "");
1372 if (wpa_s->sme.bss_max_idle_period == 0)
1373 wpa_s->sme.bss_max_idle_period = 1;
1374 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1375 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1376 /* msec times 1000 */
1377 msec = wpa_s->sme.bss_max_idle_period * 1024;
1378 if (msec > 100)
1379 msec -= 100;
1380 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1381 wnm_bss_keep_alive, wpa_s,
1382 NULL);
1383 }
1384 }
1385 #endif /* CONFIG_SME */
1386 }
1387
1388 #endif /* CONFIG_WNM */
1389
1390
1391 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1392 {
1393 #ifdef CONFIG_WNM
1394 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1395 #endif /* CONFIG_WNM */
1396 }
1397
1398
1399 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1400 union wpa_event_data *data)
1401 {
1402 int l, len, found = 0, wpa_found, rsn_found;
1403 const u8 *p;
1404
1405 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
1406 if (data->assoc_info.req_ies)
1407 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1408 data->assoc_info.req_ies_len);
1409 if (data->assoc_info.resp_ies) {
1410 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1411 data->assoc_info.resp_ies_len);
1412 #ifdef CONFIG_TDLS
1413 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1414 data->assoc_info.resp_ies_len);
1415 #endif /* CONFIG_TDLS */
1416 #ifdef CONFIG_WNM
1417 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1418 data->assoc_info.resp_ies_len);
1419 #endif /* CONFIG_WNM */
1420 }
1421 if (data->assoc_info.beacon_ies)
1422 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1423 data->assoc_info.beacon_ies,
1424 data->assoc_info.beacon_ies_len);
1425 if (data->assoc_info.freq)
1426 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1427 data->assoc_info.freq);
1428
1429 p = data->assoc_info.req_ies;
1430 l = data->assoc_info.req_ies_len;
1431
1432 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1433 while (p && l >= 2) {
1434 len = p[1] + 2;
1435 if (len > l) {
1436 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1437 p, l);
1438 break;
1439 }
1440 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1441 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1442 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1443 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1444 break;
1445 found = 1;
1446 wpa_find_assoc_pmkid(wpa_s);
1447 break;
1448 }
1449 l -= len;
1450 p += len;
1451 }
1452 if (!found && data->assoc_info.req_ies)
1453 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
1454
1455 #ifdef CONFIG_IEEE80211R
1456 #ifdef CONFIG_SME
1457 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
1458 u8 bssid[ETH_ALEN];
1459 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1460 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1461 data->assoc_info.resp_ies,
1462 data->assoc_info.resp_ies_len,
1463 bssid) < 0) {
1464 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1465 "Reassociation Response failed");
1466 wpa_supplicant_deauthenticate(
1467 wpa_s, WLAN_REASON_INVALID_IE);
1468 return -1;
1469 }
1470 }
1471
1472 p = data->assoc_info.resp_ies;
1473 l = data->assoc_info.resp_ies_len;
1474
1475 #ifdef CONFIG_WPS_STRICT
1476 if (p && wpa_s->current_ssid &&
1477 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
1478 struct wpabuf *wps;
1479 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
1480 if (wps == NULL) {
1481 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
1482 "include WPS IE in (Re)Association Response");
1483 return -1;
1484 }
1485
1486 if (wps_validate_assoc_resp(wps) < 0) {
1487 wpabuf_free(wps);
1488 wpa_supplicant_deauthenticate(
1489 wpa_s, WLAN_REASON_INVALID_IE);
1490 return -1;
1491 }
1492 wpabuf_free(wps);
1493 }
1494 #endif /* CONFIG_WPS_STRICT */
1495
1496 /* Go through the IEs and make a copy of the MDIE, if present. */
1497 while (p && l >= 2) {
1498 len = p[1] + 2;
1499 if (len > l) {
1500 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1501 p, l);
1502 break;
1503 }
1504 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
1505 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
1506 wpa_s->sme.ft_used = 1;
1507 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
1508 MOBILITY_DOMAIN_ID_LEN);
1509 break;
1510 }
1511 l -= len;
1512 p += len;
1513 }
1514 #endif /* CONFIG_SME */
1515
1516 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
1517 data->assoc_info.resp_ies_len);
1518 #endif /* CONFIG_IEEE80211R */
1519
1520 /* WPA/RSN IE from Beacon/ProbeResp */
1521 p = data->assoc_info.beacon_ies;
1522 l = data->assoc_info.beacon_ies_len;
1523
1524 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
1525 */
1526 wpa_found = rsn_found = 0;
1527 while (p && l >= 2) {
1528 len = p[1] + 2;
1529 if (len > l) {
1530 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
1531 p, l);
1532 break;
1533 }
1534 if (!wpa_found &&
1535 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1536 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
1537 wpa_found = 1;
1538 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
1539 }
1540
1541 if (!rsn_found &&
1542 p[0] == WLAN_EID_RSN && p[1] >= 2) {
1543 rsn_found = 1;
1544 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
1545 }
1546
1547 l -= len;
1548 p += len;
1549 }
1550
1551 if (!wpa_found && data->assoc_info.beacon_ies)
1552 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
1553 if (!rsn_found && data->assoc_info.beacon_ies)
1554 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
1555 if (wpa_found || rsn_found)
1556 wpa_s->ap_ies_from_associnfo = 1;
1557
1558 if (wpa_s->assoc_freq && data->assoc_info.freq &&
1559 wpa_s->assoc_freq != data->assoc_info.freq) {
1560 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
1561 "%u to %u MHz",
1562 wpa_s->assoc_freq, data->assoc_info.freq);
1563 wpa_supplicant_update_scan_results(wpa_s);
1564 }
1565
1566 wpa_s->assoc_freq = data->assoc_info.freq;
1567
1568 return 0;
1569 }
1570
1571
1572 static struct wpa_bss * wpa_supplicant_get_new_bss(
1573 struct wpa_supplicant *wpa_s, const u8 *bssid)
1574 {
1575 struct wpa_bss *bss = NULL;
1576 struct wpa_ssid *ssid = wpa_s->current_ssid;
1577
1578 if (ssid->ssid_len > 0)
1579 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
1580 if (!bss)
1581 bss = wpa_bss_get_bssid(wpa_s, bssid);
1582
1583 return bss;
1584 }
1585
1586
1587 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
1588 {
1589 const u8 *bss_wpa = NULL, *bss_rsn = NULL;
1590
1591 if (!wpa_s->current_bss || !wpa_s->current_ssid)
1592 return -1;
1593
1594 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
1595 return 0;
1596
1597 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
1598 WPA_IE_VENDOR_TYPE);
1599 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
1600
1601 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
1602 bss_wpa ? 2 + bss_wpa[1] : 0) ||
1603 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
1604 bss_rsn ? 2 + bss_rsn[1] : 0))
1605 return -1;
1606
1607 return 0;
1608 }
1609
1610
1611 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
1612 union wpa_event_data *data)
1613 {
1614 u8 bssid[ETH_ALEN];
1615 int ft_completed;
1616 struct wpa_driver_capa capa;
1617
1618 #ifdef CONFIG_AP
1619 if (wpa_s->ap_iface) {
1620 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
1621 data->assoc_info.addr,
1622 data->assoc_info.req_ies,
1623 data->assoc_info.req_ies_len,
1624 data->assoc_info.reassoc);
1625 return;
1626 }
1627 #endif /* CONFIG_AP */
1628
1629 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
1630 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
1631 return;
1632
1633 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
1634 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
1635 wpa_supplicant_disassociate(
1636 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1637 return;
1638 }
1639
1640 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
1641 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
1642 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
1643 MACSTR, MAC2STR(bssid));
1644 random_add_randomness(bssid, ETH_ALEN);
1645 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
1646 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
1647 wpas_notify_bssid_changed(wpa_s);
1648
1649 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
1650 wpa_clear_keys(wpa_s, bssid);
1651 }
1652 if (wpa_supplicant_select_config(wpa_s) < 0) {
1653 wpa_supplicant_disassociate(
1654 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1655 return;
1656 }
1657 if (wpa_s->current_ssid) {
1658 struct wpa_bss *bss = NULL;
1659
1660 bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
1661 if (!bss) {
1662 wpa_supplicant_update_scan_results(wpa_s);
1663
1664 /* Get the BSS from the new scan results */
1665 bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
1666 }
1667
1668 if (bss)
1669 wpa_s->current_bss = bss;
1670 }
1671
1672 if (wpa_s->conf->ap_scan == 1 &&
1673 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
1674 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0)
1675 wpa_msg(wpa_s, MSG_WARNING,
1676 "WPA/RSN IEs not updated");
1677 }
1678 }
1679
1680 #ifdef CONFIG_SME
1681 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
1682 wpa_s->sme.prev_bssid_set = 1;
1683 #endif /* CONFIG_SME */
1684
1685 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
1686 if (wpa_s->current_ssid) {
1687 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
1688 * initialized before association, but for other modes,
1689 * initialize PC/SC here, if the current configuration needs
1690 * smartcard or SIM/USIM. */
1691 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
1692 }
1693 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
1694 if (wpa_s->l2)
1695 l2_packet_notify_auth_start(wpa_s->l2);
1696
1697 /*
1698 * Set portEnabled first to FALSE in order to get EAP state machine out
1699 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
1700 * state machine may transit to AUTHENTICATING state based on obsolete
1701 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
1702 * AUTHENTICATED without ever giving chance to EAP state machine to
1703 * reset the state.
1704 */
1705 if (!ft_completed) {
1706 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
1707 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
1708 }
1709 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
1710 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
1711 /* 802.1X::portControl = Auto */
1712 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
1713 wpa_s->eapol_received = 0;
1714 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1715 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
1716 (wpa_s->current_ssid &&
1717 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
1718 wpa_supplicant_cancel_auth_timeout(wpa_s);
1719 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1720 } else if (!ft_completed) {
1721 /* Timeout for receiving the first EAPOL packet */
1722 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
1723 }
1724 wpa_supplicant_cancel_scan(wpa_s);
1725
1726 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1727 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1728 /*
1729 * We are done; the driver will take care of RSN 4-way
1730 * handshake.
1731 */
1732 wpa_supplicant_cancel_auth_timeout(wpa_s);
1733 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1734 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1735 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1736 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1737 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
1738 /*
1739 * The driver will take care of RSN 4-way handshake, so we need
1740 * to allow EAPOL supplicant to complete its work without
1741 * waiting for WPA supplicant.
1742 */
1743 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1744 } else if (ft_completed) {
1745 /*
1746 * FT protocol completed - make sure EAPOL state machine ends
1747 * up in authenticated.
1748 */
1749 wpa_supplicant_cancel_auth_timeout(wpa_s);
1750 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1751 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1752 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1753 }
1754
1755 if (wpa_s->pending_eapol_rx) {
1756 struct os_time now, age;
1757 os_get_time(&now);
1758 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
1759 if (age.sec == 0 && age.usec < 100000 &&
1760 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
1761 0) {
1762 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
1763 "frame that was received just before "
1764 "association notification");
1765 wpa_supplicant_rx_eapol(
1766 wpa_s, wpa_s->pending_eapol_rx_src,
1767 wpabuf_head(wpa_s->pending_eapol_rx),
1768 wpabuf_len(wpa_s->pending_eapol_rx));
1769 }
1770 wpabuf_free(wpa_s->pending_eapol_rx);
1771 wpa_s->pending_eapol_rx = NULL;
1772 }
1773
1774 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1775 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
1776 wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 &&
1777 capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) {
1778 /* Set static WEP keys again */
1779 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
1780 }
1781
1782 #ifdef CONFIG_IBSS_RSN
1783 if (wpa_s->current_ssid &&
1784 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
1785 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
1786 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
1787 wpa_s->ibss_rsn == NULL) {
1788 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
1789 if (!wpa_s->ibss_rsn) {
1790 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
1791 wpa_supplicant_deauthenticate(
1792 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1793 return;
1794 }
1795
1796 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
1797 }
1798 #endif /* CONFIG_IBSS_RSN */
1799
1800 wpas_wps_notify_assoc(wpa_s, bssid);
1801 }
1802
1803
1804 static int disconnect_reason_recoverable(u16 reason_code)
1805 {
1806 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
1807 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
1808 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
1809 }
1810
1811
1812 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
1813 u16 reason_code,
1814 int locally_generated)
1815 {
1816 const u8 *bssid;
1817
1818 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
1819 /*
1820 * At least Host AP driver and a Prism3 card seemed to be
1821 * generating streams of disconnected events when configuring
1822 * IBSS for WPA-None. Ignore them for now.
1823 */
1824 return;
1825 }
1826
1827 bssid = wpa_s->bssid;
1828 if (is_zero_ether_addr(bssid))
1829 bssid = wpa_s->pending_bssid;
1830
1831 if (!is_zero_ether_addr(bssid) ||
1832 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1833 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
1834 " reason=%d%s",
1835 MAC2STR(bssid), reason_code,
1836 locally_generated ? " locally_generated=1" : "");
1837 }
1838 }
1839
1840
1841 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
1842 u16 reason_code,
1843 int locally_generated)
1844 {
1845 const u8 *bssid;
1846 int authenticating;
1847 u8 prev_pending_bssid[ETH_ALEN];
1848 struct wpa_bss *fast_reconnect = NULL;
1849 struct wpa_ssid *fast_reconnect_ssid = NULL;
1850 struct wpa_ssid *last_ssid;
1851
1852 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
1853 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
1854
1855 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
1856 /*
1857 * At least Host AP driver and a Prism3 card seemed to be
1858 * generating streams of disconnected events when configuring
1859 * IBSS for WPA-None. Ignore them for now.
1860 */
1861 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
1862 "IBSS/WPA-None mode");
1863 return;
1864 }
1865
1866 if (wpa_s->wpa_state == WPA_4WAY_HANDSHAKE &&
1867 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1868 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
1869 "pre-shared key may be incorrect");
1870 wpas_auth_failed(wpa_s);
1871 }
1872 if (!wpa_s->auto_reconnect_disabled ||
1873 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
1874 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
1875 "reconnect (wps=%d wpa_state=%d)",
1876 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
1877 wpa_s->wpa_state);
1878 if (wpa_s->wpa_state == WPA_COMPLETED &&
1879 wpa_s->current_ssid &&
1880 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
1881 !locally_generated &&
1882 disconnect_reason_recoverable(reason_code)) {
1883 /*
1884 * It looks like the AP has dropped association with
1885 * us, but could allow us to get back in. Try to
1886 * reconnect to the same BSS without full scan to save
1887 * time for some common cases.
1888 */
1889 fast_reconnect = wpa_s->current_bss;
1890 fast_reconnect_ssid = wpa_s->current_ssid;
1891 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
1892 #ifdef ANDROID
1893 wpa_supplicant_req_scan(wpa_s, 0, 500000);
1894 #else
1895 wpa_supplicant_req_scan(wpa_s, 0, 100000);
1896 #endif
1897 else
1898 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
1899 "immediate scan");
1900 } else {
1901 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
1902 "try to re-connect");
1903 wpa_s->reassociate = 0;
1904 wpa_s->disconnected = 1;
1905 wpa_supplicant_cancel_sched_scan(wpa_s);
1906 }
1907 bssid = wpa_s->bssid;
1908 if (is_zero_ether_addr(bssid))
1909 bssid = wpa_s->pending_bssid;
1910 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
1911 wpas_connection_failed(wpa_s, bssid);
1912 wpa_sm_notify_disassoc(wpa_s->wpa);
1913 if (locally_generated)
1914 wpa_s->disconnect_reason = -reason_code;
1915 else
1916 wpa_s->disconnect_reason = reason_code;
1917 wpas_notify_disconnect_reason(wpa_s);
1918 if (wpa_supplicant_dynamic_keys(wpa_s)) {
1919 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
1920 wpa_s->keys_cleared = 0;
1921 wpa_clear_keys(wpa_s, wpa_s->bssid);
1922 }
1923 last_ssid = wpa_s->current_ssid;
1924 wpa_supplicant_mark_disassoc(wpa_s);
1925
1926 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
1927 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
1928 wpa_s->current_ssid = last_ssid;
1929 }
1930
1931 if (fast_reconnect) {
1932 #ifndef CONFIG_NO_SCAN_PROCESSING
1933 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
1934 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
1935 fast_reconnect_ssid) < 0) {
1936 /* Recover through full scan */
1937 wpa_supplicant_req_scan(wpa_s, 0, 100000);
1938 }
1939 #endif /* CONFIG_NO_SCAN_PROCESSING */
1940 }
1941 }
1942
1943
1944 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
1945 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
1946 {
1947 struct wpa_supplicant *wpa_s = eloop_ctx;
1948
1949 if (!wpa_s->pending_mic_error_report)
1950 return;
1951
1952 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
1953 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
1954 wpa_s->pending_mic_error_report = 0;
1955 }
1956 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1957
1958
1959 static void
1960 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
1961 union wpa_event_data *data)
1962 {
1963 int pairwise;
1964 struct os_time t;
1965
1966 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
1967 pairwise = (data && data->michael_mic_failure.unicast);
1968 os_get_time(&t);
1969 if ((wpa_s->last_michael_mic_error &&
1970 t.sec - wpa_s->last_michael_mic_error <= 60) ||
1971 wpa_s->pending_mic_error_report) {
1972 if (wpa_s->pending_mic_error_report) {
1973 /*
1974 * Send the pending MIC error report immediately since
1975 * we are going to start countermeasures and AP better
1976 * do the same.
1977 */
1978 wpa_sm_key_request(wpa_s->wpa, 1,
1979 wpa_s->pending_mic_error_pairwise);
1980 }
1981
1982 /* Send the new MIC error report immediately since we are going
1983 * to start countermeasures and AP better do the same.
1984 */
1985 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1986
1987 /* initialize countermeasures */
1988 wpa_s->countermeasures = 1;
1989
1990 wpa_blacklist_add(wpa_s, wpa_s->bssid);
1991
1992 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
1993
1994 /*
1995 * Need to wait for completion of request frame. We do not get
1996 * any callback for the message completion, so just wait a
1997 * short while and hope for the best. */
1998 os_sleep(0, 10000);
1999
2000 wpa_drv_set_countermeasures(wpa_s, 1);
2001 wpa_supplicant_deauthenticate(wpa_s,
2002 WLAN_REASON_MICHAEL_MIC_FAILURE);
2003 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
2004 wpa_s, NULL);
2005 eloop_register_timeout(60, 0,
2006 wpa_supplicant_stop_countermeasures,
2007 wpa_s, NULL);
2008 /* TODO: mark the AP rejected for 60 second. STA is
2009 * allowed to associate with another AP.. */
2010 } else {
2011 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2012 if (wpa_s->mic_errors_seen) {
2013 /*
2014 * Reduce the effectiveness of Michael MIC error
2015 * reports as a means for attacking against TKIP if
2016 * more than one MIC failure is noticed with the same
2017 * PTK. We delay the transmission of the reports by a
2018 * random time between 0 and 60 seconds in order to
2019 * force the attacker wait 60 seconds before getting
2020 * the information on whether a frame resulted in a MIC
2021 * failure.
2022 */
2023 u8 rval[4];
2024 int sec;
2025
2026 if (os_get_random(rval, sizeof(rval)) < 0)
2027 sec = os_random() % 60;
2028 else
2029 sec = WPA_GET_BE32(rval) % 60;
2030 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
2031 "report %d seconds", sec);
2032 wpa_s->pending_mic_error_report = 1;
2033 wpa_s->pending_mic_error_pairwise = pairwise;
2034 eloop_cancel_timeout(
2035 wpa_supplicant_delayed_mic_error_report,
2036 wpa_s, NULL);
2037 eloop_register_timeout(
2038 sec, os_random() % 1000000,
2039 wpa_supplicant_delayed_mic_error_report,
2040 wpa_s, NULL);
2041 } else {
2042 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2043 }
2044 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2045 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2046 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2047 }
2048 wpa_s->last_michael_mic_error = t.sec;
2049 wpa_s->mic_errors_seen++;
2050 }
2051
2052
2053 #ifdef CONFIG_TERMINATE_ONLASTIF
2054 static int any_interfaces(struct wpa_supplicant *head)
2055 {
2056 struct wpa_supplicant *wpa_s;
2057
2058 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
2059 if (!wpa_s->interface_removed)
2060 return 1;
2061 return 0;
2062 }
2063 #endif /* CONFIG_TERMINATE_ONLASTIF */
2064
2065
2066 static void
2067 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
2068 union wpa_event_data *data)
2069 {
2070 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
2071 return;
2072
2073 switch (data->interface_status.ievent) {
2074 case EVENT_INTERFACE_ADDED:
2075 if (!wpa_s->interface_removed)
2076 break;
2077 wpa_s->interface_removed = 0;
2078 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
2079 if (wpa_supplicant_driver_init(wpa_s) < 0) {
2080 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
2081 "driver after interface was added");
2082 }
2083 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2084 break;
2085 case EVENT_INTERFACE_REMOVED:
2086 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
2087 wpa_s->interface_removed = 1;
2088 wpa_supplicant_mark_disassoc(wpa_s);
2089 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2090 l2_packet_deinit(wpa_s->l2);
2091 wpa_s->l2 = NULL;
2092 #ifdef CONFIG_IBSS_RSN
2093 ibss_rsn_deinit(wpa_s->ibss_rsn);
2094 wpa_s->ibss_rsn = NULL;
2095 #endif /* CONFIG_IBSS_RSN */
2096 #ifdef CONFIG_TERMINATE_ONLASTIF
2097 /* check if last interface */
2098 if (!any_interfaces(wpa_s->global->ifaces))
2099 eloop_terminate();
2100 #endif /* CONFIG_TERMINATE_ONLASTIF */
2101 break;
2102 }
2103 }
2104
2105
2106 #ifdef CONFIG_PEERKEY
2107 static void
2108 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2109 union wpa_event_data *data)
2110 {
2111 if (data == NULL)
2112 return;
2113 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2114 }
2115 #endif /* CONFIG_PEERKEY */
2116
2117
2118 #ifdef CONFIG_TDLS
2119 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2120 union wpa_event_data *data)
2121 {
2122 if (data == NULL)
2123 return;
2124 switch (data->tdls.oper) {
2125 case TDLS_REQUEST_SETUP:
2126 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2127 break;
2128 case TDLS_REQUEST_TEARDOWN:
2129 wpa_tdls_send_teardown(wpa_s->wpa, data->tdls.peer,
2130 data->tdls.reason_code);
2131 break;
2132 }
2133 }
2134 #endif /* CONFIG_TDLS */
2135
2136
2137 #ifdef CONFIG_IEEE80211V
2138 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
2139 union wpa_event_data *data)
2140 {
2141 if (data == NULL)
2142 return;
2143 switch (data->wnm.oper) {
2144 case WNM_OPER_SLEEP:
2145 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
2146 "(action=%d, intval=%d)",
2147 data->wnm.sleep_action, data->wnm.sleep_intval);
2148 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
2149 data->wnm.sleep_intval);
2150 break;
2151 }
2152 }
2153 #endif /* CONFIG_IEEE80211V */
2154
2155
2156 #ifdef CONFIG_IEEE80211R
2157 static void
2158 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2159 union wpa_event_data *data)
2160 {
2161 if (data == NULL)
2162 return;
2163
2164 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2165 data->ft_ies.ies_len,
2166 data->ft_ies.ft_action,
2167 data->ft_ies.target_ap,
2168 data->ft_ies.ric_ies,
2169 data->ft_ies.ric_ies_len) < 0) {
2170 /* TODO: prevent MLME/driver from trying to associate? */
2171 }
2172 }
2173 #endif /* CONFIG_IEEE80211R */
2174
2175
2176 #ifdef CONFIG_IBSS_RSN
2177 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2178 union wpa_event_data *data)
2179 {
2180 struct wpa_ssid *ssid;
2181 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2182 return;
2183 if (data == NULL)
2184 return;
2185 ssid = wpa_s->current_ssid;
2186 if (ssid == NULL)
2187 return;
2188 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2189 return;
2190
2191 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2192 }
2193 #endif /* CONFIG_IBSS_RSN */
2194
2195
2196 #ifdef CONFIG_IEEE80211R
2197 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
2198 size_t len)
2199 {
2200 const u8 *sta_addr, *target_ap_addr;
2201 u16 status;
2202
2203 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
2204 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2205 return; /* only SME case supported for now */
2206 if (len < 1 + 2 * ETH_ALEN + 2)
2207 return;
2208 if (data[0] != 2)
2209 return; /* Only FT Action Response is supported for now */
2210 sta_addr = data + 1;
2211 target_ap_addr = data + 1 + ETH_ALEN;
2212 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
2213 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
2214 MACSTR " TargetAP " MACSTR " status %u",
2215 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
2216
2217 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
2218 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
2219 " in FT Action Response", MAC2STR(sta_addr));
2220 return;
2221 }
2222
2223 if (status) {
2224 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
2225 "failure (status code %d)", status);
2226 /* TODO: report error to FT code(?) */
2227 return;
2228 }
2229
2230 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
2231 len - (1 + 2 * ETH_ALEN + 2), 1,
2232 target_ap_addr, NULL, 0) < 0)
2233 return;
2234
2235 #ifdef CONFIG_SME
2236 {
2237 struct wpa_bss *bss;
2238 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
2239 if (bss)
2240 wpa_s->sme.freq = bss->freq;
2241 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
2242 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
2243 WLAN_AUTH_FT);
2244 }
2245 #endif /* CONFIG_SME */
2246 }
2247 #endif /* CONFIG_IEEE80211R */
2248
2249
2250 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
2251 struct unprot_deauth *e)
2252 {
2253 #ifdef CONFIG_IEEE80211W
2254 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
2255 "dropped: " MACSTR " -> " MACSTR
2256 " (reason code %u)",
2257 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2258 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2259 #endif /* CONFIG_IEEE80211W */
2260 }
2261
2262
2263 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
2264 struct unprot_disassoc *e)
2265 {
2266 #ifdef CONFIG_IEEE80211W
2267 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
2268 "dropped: " MACSTR " -> " MACSTR
2269 " (reason code %u)",
2270 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2271 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2272 #endif /* CONFIG_IEEE80211W */
2273 }
2274
2275
2276 static void wnm_action_rx(struct wpa_supplicant *wpa_s, struct rx_action *rx)
2277 {
2278 u8 action, mode;
2279 const u8 *pos, *end;
2280
2281 if (rx->data == NULL || rx->len == 0)
2282 return;
2283
2284 pos = rx->data;
2285 end = pos + rx->len;
2286 action = *pos++;
2287
2288 wpa_printf(MSG_DEBUG, "WNM: RX action %u from " MACSTR,
2289 action, MAC2STR(rx->sa));
2290 switch (action) {
2291 case WNM_BSS_TRANS_MGMT_REQ:
2292 if (pos + 5 > end)
2293 break;
2294 wpa_printf(MSG_DEBUG, "WNM: BSS Transition Management "
2295 "Request: dialog_token=%u request_mode=0x%x "
2296 "disassoc_timer=%u validity_interval=%u",
2297 pos[0], pos[1], WPA_GET_LE16(pos + 2), pos[4]);
2298 mode = pos[1];
2299 pos += 5;
2300 if (mode & 0x08)
2301 pos += 12; /* BSS Termination Duration */
2302 if (mode & 0x10) {
2303 char url[256];
2304 if (pos + 1 > end || pos + 1 + pos[0] > end) {
2305 wpa_printf(MSG_DEBUG, "WNM: Invalid BSS "
2306 "Transition Management Request "
2307 "(URL)");
2308 break;
2309 }
2310 os_memcpy(url, pos + 1, pos[0]);
2311 url[pos[0]] = '\0';
2312 wpa_msg(wpa_s, MSG_INFO, "WNM: ESS Disassociation "
2313 "Imminent - session_info_url=%s", url);
2314 }
2315 break;
2316 }
2317 }
2318
2319
2320 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
2321 union wpa_event_data *data)
2322 {
2323 struct wpa_supplicant *wpa_s = ctx;
2324 u16 reason_code = 0;
2325 int locally_generated = 0;
2326
2327 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
2328 event != EVENT_INTERFACE_ENABLED &&
2329 event != EVENT_INTERFACE_STATUS &&
2330 event != EVENT_SCHED_SCAN_STOPPED) {
2331 wpa_dbg(wpa_s, MSG_DEBUG,
2332 "Ignore event %s (%d) while interface is disabled",
2333 event_to_string(event), event);
2334 return;
2335 }
2336
2337 #ifndef CONFIG_NO_STDOUT_DEBUG
2338 {
2339 int level = MSG_DEBUG;
2340
2341 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
2342 const struct ieee80211_hdr *hdr;
2343 u16 fc;
2344 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
2345 fc = le_to_host16(hdr->frame_control);
2346 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
2347 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
2348 level = MSG_EXCESSIVE;
2349 }
2350
2351 wpa_dbg(wpa_s, level, "Event %s (%d) received",
2352 event_to_string(event), event);
2353 }
2354 #endif /* CONFIG_NO_STDOUT_DEBUG */
2355
2356 switch (event) {
2357 case EVENT_AUTH:
2358 sme_event_auth(wpa_s, data);
2359 break;
2360 case EVENT_ASSOC:
2361 wpa_supplicant_event_assoc(wpa_s, data);
2362 break;
2363 case EVENT_DISASSOC:
2364 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
2365 if (data) {
2366 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
2367 data->disassoc_info.reason_code,
2368 data->disassoc_info.locally_generated ?
2369 " (locally generated)" : "");
2370 if (data->disassoc_info.addr)
2371 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
2372 MAC2STR(data->disassoc_info.addr));
2373 }
2374 #ifdef CONFIG_AP
2375 if (wpa_s->ap_iface && data && data->disassoc_info.addr) {
2376 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
2377 data->disassoc_info.addr);
2378 break;
2379 }
2380 if (wpa_s->ap_iface) {
2381 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in "
2382 "AP mode");
2383 break;
2384 }
2385 #endif /* CONFIG_AP */
2386 if (data) {
2387 reason_code = data->disassoc_info.reason_code;
2388 locally_generated =
2389 data->disassoc_info.locally_generated;
2390 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
2391 data->disassoc_info.ie,
2392 data->disassoc_info.ie_len);
2393 #ifdef CONFIG_P2P
2394 wpas_p2p_disassoc_notif(
2395 wpa_s, data->disassoc_info.addr, reason_code,
2396 data->disassoc_info.ie,
2397 data->disassoc_info.ie_len,
2398 locally_generated);
2399 #endif /* CONFIG_P2P */
2400 }
2401 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2402 sme_event_disassoc(wpa_s, data);
2403 /* fall through */
2404 case EVENT_DEAUTH:
2405 if (event == EVENT_DEAUTH) {
2406 wpa_dbg(wpa_s, MSG_DEBUG,
2407 "Deauthentication notification");
2408 if (data) {
2409 reason_code = data->deauth_info.reason_code;
2410 locally_generated =
2411 data->deauth_info.locally_generated;
2412 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
2413 data->deauth_info.reason_code,
2414 data->deauth_info.locally_generated ?
2415 " (locally generated)" : "");
2416 if (data->deauth_info.addr) {
2417 wpa_dbg(wpa_s, MSG_DEBUG, " * address "
2418 MACSTR,
2419 MAC2STR(data->deauth_info.
2420 addr));
2421 }
2422 wpa_hexdump(MSG_DEBUG,
2423 "Deauthentication frame IE(s)",
2424 data->deauth_info.ie,
2425 data->deauth_info.ie_len);
2426 }
2427 }
2428 #ifdef CONFIG_AP
2429 if (wpa_s->ap_iface && data && data->deauth_info.addr) {
2430 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
2431 data->deauth_info.addr);
2432 break;
2433 }
2434 if (wpa_s->ap_iface) {
2435 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in "
2436 "AP mode");
2437 break;
2438 }
2439 #endif /* CONFIG_AP */
2440 wpa_supplicant_event_disassoc(wpa_s, reason_code,
2441 locally_generated);
2442 if (reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
2443 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
2444 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
2445 eapol_sm_failed(wpa_s->eapol)))
2446 wpas_auth_failed(wpa_s);
2447 #ifdef CONFIG_P2P
2448 if (event == EVENT_DEAUTH && data) {
2449 if (wpas_p2p_deauth_notif(wpa_s,
2450 data->deauth_info.addr,
2451 reason_code,
2452 data->deauth_info.ie,
2453 data->deauth_info.ie_len,
2454 locally_generated) > 0) {
2455 /*
2456 * The interface was removed, so cannot
2457 * continue processing any additional
2458 * operations after this.
2459 */
2460 break;
2461 }
2462 }
2463 #endif /* CONFIG_P2P */
2464 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
2465 locally_generated);
2466 break;
2467 case EVENT_MICHAEL_MIC_FAILURE:
2468 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
2469 break;
2470 #ifndef CONFIG_NO_SCAN_PROCESSING
2471 case EVENT_SCAN_RESULTS:
2472 wpa_supplicant_event_scan_results(wpa_s, data);
2473 #ifdef CONFIG_P2P
2474 if (wpa_s->global->p2p_cb_on_scan_complete && !wpa_s->global->p2p_disabled &&
2475 wpa_s->global->p2p != NULL &&
2476 wpa_s->wpa_state != WPA_AUTHENTICATING &&
2477 wpa_s->wpa_state != WPA_ASSOCIATING) {
2478 wpa_s->global->p2p_cb_on_scan_complete = 0;
2479 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) {
2480 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation "
2481 "continued after scan result processing");
2482 }
2483 }
2484 #endif /* CONFIG_P2P */
2485 break;
2486 #endif /* CONFIG_NO_SCAN_PROCESSING */
2487 case EVENT_ASSOCINFO:
2488 wpa_supplicant_event_associnfo(wpa_s, data);
2489 break;
2490 case EVENT_INTERFACE_STATUS:
2491 wpa_supplicant_event_interface_status(wpa_s, data);
2492 break;
2493 case EVENT_PMKID_CANDIDATE:
2494 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
2495 break;
2496 #ifdef CONFIG_PEERKEY
2497 case EVENT_STKSTART:
2498 wpa_supplicant_event_stkstart(wpa_s, data);
2499 break;
2500 #endif /* CONFIG_PEERKEY */
2501 #ifdef CONFIG_TDLS
2502 case EVENT_TDLS:
2503 wpa_supplicant_event_tdls(wpa_s, data);
2504 break;
2505 #endif /* CONFIG_TDLS */
2506 #ifdef CONFIG_IEEE80211V
2507 case EVENT_WNM:
2508 wpa_supplicant_event_wnm(wpa_s, data);
2509 break;
2510 #endif /* CONFIG_IEEE80211V */
2511 #ifdef CONFIG_IEEE80211R
2512 case EVENT_FT_RESPONSE:
2513 wpa_supplicant_event_ft_response(wpa_s, data);
2514 break;
2515 #endif /* CONFIG_IEEE80211R */
2516 #ifdef CONFIG_IBSS_RSN
2517 case EVENT_IBSS_RSN_START:
2518 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
2519 break;
2520 #endif /* CONFIG_IBSS_RSN */
2521 case EVENT_ASSOC_REJECT:
2522 if (data->assoc_reject.bssid)
2523 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
2524 "bssid=" MACSTR " status_code=%u",
2525 MAC2STR(data->assoc_reject.bssid),
2526 data->assoc_reject.status_code);
2527 else
2528 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
2529 "status_code=%u",
2530 data->assoc_reject.status_code);
2531 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2532 sme_event_assoc_reject(wpa_s, data);
2533 #ifdef ANDROID_P2P
2534 #ifdef CONFIG_P2P
2535 else {
2536 if(!wpa_s->current_ssid) {
2537 wpa_printf(MSG_ERROR, "current_ssid == NULL");
2538 break;
2539 }
2540 /* If assoc reject is reported by the driver, then avoid
2541 * waiting for the authentication timeout. Cancel the
2542 * authentication timeout and retry the assoc.
2543 */
2544 if(wpa_s->current_ssid->assoc_retry++ < 10) {
2545 wpa_printf(MSG_ERROR, "Retrying assoc: %d ",
2546 wpa_s->current_ssid->assoc_retry);
2547
2548 wpa_supplicant_cancel_auth_timeout(wpa_s);
2549
2550 /* Clear the states */
2551 wpa_sm_notify_disassoc(wpa_s->wpa);
2552 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2553
2554 wpa_s->reassociate = 1;
2555 if (wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE) {
2556 const u8 *bl_bssid = data->assoc_reject.bssid;
2557 if (!bl_bssid || is_zero_ether_addr(bl_bssid))
2558 bl_bssid = wpa_s->pending_bssid;
2559 wpa_blacklist_add(wpa_s, bl_bssid);
2560 wpa_supplicant_req_scan(wpa_s, 0, 0);
2561 } else {
2562 wpa_supplicant_req_scan(wpa_s, 1, 0);
2563 }
2564 } else if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
2565 /* If we ASSOC_REJECT's hits threshold, disable the
2566 * network
2567 */
2568 wpa_printf(MSG_ERROR, "Assoc retry threshold reached. "
2569 "Disabling the network");
2570 wpa_s->current_ssid->assoc_retry = 0;
2571 wpa_supplicant_disable_network(wpa_s, wpa_s->current_ssid);
2572 wpas_p2p_group_remove(wpa_s, wpa_s->ifname);
2573 }
2574 }
2575 #endif
2576 #endif /* ANDROID_P2P */
2577 break;
2578 case EVENT_AUTH_TIMED_OUT:
2579 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2580 sme_event_auth_timed_out(wpa_s, data);
2581 break;
2582 case EVENT_ASSOC_TIMED_OUT:
2583 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2584 sme_event_assoc_timed_out(wpa_s, data);
2585 break;
2586 case EVENT_TX_STATUS:
2587 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
2588 " type=%d stype=%d",
2589 MAC2STR(data->tx_status.dst),
2590 data->tx_status.type, data->tx_status.stype);
2591 #ifdef CONFIG_AP
2592 if (wpa_s->ap_iface == NULL) {
2593 #ifdef CONFIG_OFFCHANNEL
2594 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
2595 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
2596 offchannel_send_action_tx_status(
2597 wpa_s, data->tx_status.dst,
2598 data->tx_status.data,
2599 data->tx_status.data_len,
2600 data->tx_status.ack ?
2601 OFFCHANNEL_SEND_ACTION_SUCCESS :
2602 OFFCHANNEL_SEND_ACTION_NO_ACK);
2603 #endif /* CONFIG_OFFCHANNEL */
2604 break;
2605 }
2606 #endif /* CONFIG_AP */
2607 #ifdef CONFIG_OFFCHANNEL
2608 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
2609 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
2610 /*
2611 * Catch TX status events for Action frames we sent via group
2612 * interface in GO mode.
2613 */
2614 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
2615 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
2616 os_memcmp(wpa_s->parent->pending_action_dst,
2617 data->tx_status.dst, ETH_ALEN) == 0) {
2618 offchannel_send_action_tx_status(
2619 wpa_s->parent, data->tx_status.dst,
2620 data->tx_status.data,
2621 data->tx_status.data_len,
2622 data->tx_status.ack ?
2623 OFFCHANNEL_SEND_ACTION_SUCCESS :
2624 OFFCHANNEL_SEND_ACTION_NO_ACK);
2625 break;
2626 }
2627 #endif /* CONFIG_OFFCHANNEL */
2628 #ifdef CONFIG_AP
2629 switch (data->tx_status.type) {
2630 case WLAN_FC_TYPE_MGMT:
2631 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
2632 data->tx_status.data_len,
2633 data->tx_status.stype,
2634 data->tx_status.ack);
2635 break;
2636 case WLAN_FC_TYPE_DATA:
2637 ap_tx_status(wpa_s, data->tx_status.dst,
2638 data->tx_status.data,
2639 data->tx_status.data_len,
2640 data->tx_status.ack);
2641 break;
2642 }
2643 #endif /* CONFIG_AP */
2644 break;
2645 #ifdef CONFIG_AP
2646 case EVENT_EAPOL_TX_STATUS:
2647 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
2648 data->eapol_tx_status.data,
2649 data->eapol_tx_status.data_len,
2650 data->eapol_tx_status.ack);
2651 break;
2652 case EVENT_DRIVER_CLIENT_POLL_OK:
2653 ap_client_poll_ok(wpa_s, data->client_poll.addr);
2654 break;
2655 case EVENT_RX_FROM_UNKNOWN:
2656 if (wpa_s->ap_iface == NULL)
2657 break;
2658 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
2659 data->rx_from_unknown.wds);
2660 break;
2661 case EVENT_CH_SWITCH:
2662 if (!data)
2663 break;
2664 if (!wpa_s->ap_iface) {
2665 wpa_dbg(wpa_s, MSG_DEBUG, "AP: Ignore channel switch "
2666 "event in non-AP mode");
2667 break;
2668 }
2669
2670 #ifdef CONFIG_AP
2671 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
2672 data->ch_switch.ht_enabled,
2673 data->ch_switch.ch_offset);
2674 #endif /* CONFIG_AP */
2675 break;
2676 case EVENT_RX_MGMT: {
2677 u16 fc, stype;
2678 const struct ieee80211_mgmt *mgmt;
2679
2680 mgmt = (const struct ieee80211_mgmt *)
2681 data->rx_mgmt.frame;
2682 fc = le_to_host16(mgmt->frame_control);
2683 stype = WLAN_FC_GET_STYPE(fc);
2684
2685 if (wpa_s->ap_iface == NULL) {
2686 #ifdef CONFIG_P2P
2687 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
2688 data->rx_mgmt.frame_len > 24) {
2689 const u8 *src = mgmt->sa;
2690 const u8 *ie = mgmt->u.probe_req.variable;
2691 size_t ie_len = data->rx_mgmt.frame_len -
2692 (mgmt->u.probe_req.variable -
2693 data->rx_mgmt.frame);
2694 wpas_p2p_probe_req_rx(
2695 wpa_s, src, mgmt->da,
2696 mgmt->bssid, ie, ie_len,
2697 data->rx_mgmt.ssi_signal);
2698 break;
2699 }
2700 #endif /* CONFIG_P2P */
2701 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
2702 "management frame in non-AP mode");
2703 break;
2704 }
2705
2706 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
2707 data->rx_mgmt.frame_len > 24) {
2708 const u8 *ie = mgmt->u.probe_req.variable;
2709 size_t ie_len = data->rx_mgmt.frame_len -
2710 (mgmt->u.probe_req.variable -
2711 data->rx_mgmt.frame);
2712
2713 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
2714 mgmt->bssid, ie, ie_len,
2715 data->rx_mgmt.ssi_signal);
2716 }
2717
2718 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
2719 break;
2720 }
2721 #endif /* CONFIG_AP */
2722 case EVENT_RX_ACTION:
2723 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
2724 " Category=%u DataLen=%d freq=%d MHz",
2725 MAC2STR(data->rx_action.sa),
2726 data->rx_action.category, (int) data->rx_action.len,
2727 data->rx_action.freq);
2728 #ifdef CONFIG_IEEE80211R
2729 if (data->rx_action.category == WLAN_ACTION_FT) {
2730 ft_rx_action(wpa_s, data->rx_action.data,
2731 data->rx_action.len);
2732 break;
2733 }
2734 #endif /* CONFIG_IEEE80211R */
2735 #ifdef CONFIG_IEEE80211W
2736 #ifdef CONFIG_SME
2737 if (data->rx_action.category == WLAN_ACTION_SA_QUERY) {
2738 sme_sa_query_rx(wpa_s, data->rx_action.sa,
2739 data->rx_action.data,
2740 data->rx_action.len);
2741 break;
2742 }
2743 #endif /* CONFIG_SME */
2744 #endif /* CONFIG_IEEE80211W */
2745 #ifdef CONFIG_IEEE80211V
2746 if (data->rx_action.category == WLAN_ACTION_WNM) {
2747 ieee802_11_rx_wnm_action(wpa_s, &data->rx_action);
2748 break;
2749 }
2750 #endif /* CONFIG_IEEE80211V */
2751 #ifdef CONFIG_GAS
2752 if (data->rx_action.category == WLAN_ACTION_PUBLIC &&
2753 gas_query_rx(wpa_s->gas, data->rx_action.da,
2754 data->rx_action.sa, data->rx_action.bssid,
2755 data->rx_action.data, data->rx_action.len,
2756 data->rx_action.freq) == 0)
2757 break;
2758 #endif /* CONFIG_GAS */
2759 if (data->rx_action.category == WLAN_ACTION_WNM) {
2760 wnm_action_rx(wpa_s, &data->rx_action);
2761 break;
2762 }
2763 #ifdef CONFIG_TDLS
2764 if (data->rx_action.category == WLAN_ACTION_PUBLIC &&
2765 data->rx_action.len >= 4 &&
2766 data->rx_action.data[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
2767 wpa_dbg(wpa_s, MSG_DEBUG, "TDLS: Received Discovery "
2768 "Response from " MACSTR,
2769 MAC2STR(data->rx_action.sa));
2770 break;
2771 }
2772 #endif /* CONFIG_TDLS */
2773 #ifdef CONFIG_P2P
2774 wpas_p2p_rx_action(wpa_s, data->rx_action.da,
2775 data->rx_action.sa,
2776 data->rx_action.bssid,
2777 data->rx_action.category,
2778 data->rx_action.data,
2779 data->rx_action.len, data->rx_action.freq);
2780 #endif /* CONFIG_P2P */
2781 break;
2782 case EVENT_RX_PROBE_REQ:
2783 if (data->rx_probe_req.sa == NULL ||
2784 data->rx_probe_req.ie == NULL)
2785 break;
2786 #ifdef CONFIG_AP
2787 if (wpa_s->ap_iface) {
2788 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
2789 data->rx_probe_req.sa,
2790 data->rx_probe_req.da,
2791 data->rx_probe_req.bssid,
2792 data->rx_probe_req.ie,
2793 data->rx_probe_req.ie_len,
2794 data->rx_probe_req.ssi_signal);
2795 break;
2796 }
2797 #endif /* CONFIG_AP */
2798 #ifdef CONFIG_P2P
2799 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
2800 data->rx_probe_req.da,
2801 data->rx_probe_req.bssid,
2802 data->rx_probe_req.ie,
2803 data->rx_probe_req.ie_len,
2804 data->rx_probe_req.ssi_signal);
2805 #endif /* CONFIG_P2P */
2806 break;
2807 case EVENT_REMAIN_ON_CHANNEL:
2808 #ifdef CONFIG_OFFCHANNEL
2809 offchannel_remain_on_channel_cb(
2810 wpa_s, data->remain_on_channel.freq,
2811 data->remain_on_channel.duration);
2812 #endif /* CONFIG_OFFCHANNEL */
2813 #ifdef CONFIG_P2P
2814 wpas_p2p_remain_on_channel_cb(
2815 wpa_s, data->remain_on_channel.freq,
2816 data->remain_on_channel.duration);
2817 #endif /* CONFIG_P2P */
2818 break;
2819 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
2820 #ifdef CONFIG_OFFCHANNEL
2821 offchannel_cancel_remain_on_channel_cb(
2822 wpa_s, data->remain_on_channel.freq);
2823 #endif /* CONFIG_OFFCHANNEL */
2824 #ifdef CONFIG_P2P
2825 wpas_p2p_cancel_remain_on_channel_cb(
2826 wpa_s, data->remain_on_channel.freq);
2827 #endif /* CONFIG_P2P */
2828 break;
2829 #ifdef CONFIG_P2P
2830 case EVENT_P2P_DEV_FOUND: {
2831 struct p2p_peer_info peer_info;
2832
2833 os_memset(&peer_info, 0, sizeof(peer_info));
2834 if (data->p2p_dev_found.dev_addr)
2835 os_memcpy(peer_info.p2p_device_addr,
2836 data->p2p_dev_found.dev_addr, ETH_ALEN);
2837 if (data->p2p_dev_found.pri_dev_type)
2838 os_memcpy(peer_info.pri_dev_type,
2839 data->p2p_dev_found.pri_dev_type,
2840 sizeof(peer_info.pri_dev_type));
2841 if (data->p2p_dev_found.dev_name)
2842 os_strlcpy(peer_info.device_name,
2843 data->p2p_dev_found.dev_name,
2844 sizeof(peer_info.device_name));
2845 peer_info.config_methods = data->p2p_dev_found.config_methods;
2846 peer_info.dev_capab = data->p2p_dev_found.dev_capab;
2847 peer_info.group_capab = data->p2p_dev_found.group_capab;
2848
2849 /*
2850 * FIX: new_device=1 is not necessarily correct. We should
2851 * maintain a P2P peer database in wpa_supplicant and update
2852 * this information based on whether the peer is truly new.
2853 */
2854 wpas_dev_found(wpa_s, data->p2p_dev_found.addr, &peer_info, 1);
2855 break;
2856 }
2857 case EVENT_P2P_GO_NEG_REQ_RX:
2858 wpas_go_neg_req_rx(wpa_s, data->p2p_go_neg_req_rx.src,
2859 data->p2p_go_neg_req_rx.dev_passwd_id);
2860 break;
2861 case EVENT_P2P_GO_NEG_COMPLETED:
2862 wpas_go_neg_completed(wpa_s, data->p2p_go_neg_completed.res);
2863 break;
2864 case EVENT_P2P_PROV_DISC_REQUEST:
2865 wpas_prov_disc_req(wpa_s, data->p2p_prov_disc_req.peer,
2866 data->p2p_prov_disc_req.config_methods,
2867 data->p2p_prov_disc_req.dev_addr,
2868 data->p2p_prov_disc_req.pri_dev_type,
2869 data->p2p_prov_disc_req.dev_name,
2870 data->p2p_prov_disc_req.supp_config_methods,
2871 data->p2p_prov_disc_req.dev_capab,
2872 data->p2p_prov_disc_req.group_capab,
2873 NULL, 0);
2874 break;
2875 case EVENT_P2P_PROV_DISC_RESPONSE:
2876 wpas_prov_disc_resp(wpa_s, data->p2p_prov_disc_resp.peer,
2877 data->p2p_prov_disc_resp.config_methods);
2878 break;
2879 case EVENT_P2P_SD_REQUEST:
2880 wpas_sd_request(wpa_s, data->p2p_sd_req.freq,
2881 data->p2p_sd_req.sa,
2882 data->p2p_sd_req.dialog_token,
2883 data->p2p_sd_req.update_indic,
2884 data->p2p_sd_req.tlvs,
2885 data->p2p_sd_req.tlvs_len);
2886 break;
2887 case EVENT_P2P_SD_RESPONSE:
2888 wpas_sd_response(wpa_s, data->p2p_sd_resp.sa,
2889 data->p2p_sd_resp.update_indic,
2890 data->p2p_sd_resp.tlvs,
2891 data->p2p_sd_resp.tlvs_len);
2892 break;
2893 #endif /* CONFIG_P2P */
2894 case EVENT_EAPOL_RX:
2895 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
2896 data->eapol_rx.data,
2897 data->eapol_rx.data_len);
2898 break;
2899 case EVENT_SIGNAL_CHANGE:
2900 bgscan_notify_signal_change(
2901 wpa_s, data->signal_change.above_threshold,
2902 data->signal_change.current_signal,
2903 data->signal_change.current_noise,
2904 data->signal_change.current_txrate);
2905 break;
2906 case EVENT_INTERFACE_ENABLED:
2907 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
2908 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
2909 wpa_supplicant_update_mac_addr(wpa_s);
2910 #ifdef CONFIG_AP
2911 if (!wpa_s->ap_iface) {
2912 wpa_supplicant_set_state(wpa_s,
2913 WPA_DISCONNECTED);
2914 wpa_supplicant_req_scan(wpa_s, 0, 0);
2915 } else
2916 wpa_supplicant_set_state(wpa_s,
2917 WPA_COMPLETED);
2918 #else /* CONFIG_AP */
2919 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2920 wpa_supplicant_req_scan(wpa_s, 0, 0);
2921 #endif /* CONFIG_AP */
2922 }
2923 break;
2924 case EVENT_INTERFACE_DISABLED:
2925 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
2926 wpa_supplicant_mark_disassoc(wpa_s);
2927 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2928 break;
2929 case EVENT_CHANNEL_LIST_CHANGED:
2930 if (wpa_s->drv_priv == NULL)
2931 break; /* Ignore event during drv initialization */
2932
2933 free_hw_features(wpa_s);
2934 wpa_s->hw.modes = wpa_drv_get_hw_feature_data(
2935 wpa_s, &wpa_s->hw.num_modes, &wpa_s->hw.flags);
2936
2937 #ifdef CONFIG_P2P
2938 wpas_p2p_update_channel_list(wpa_s);
2939 #endif /* CONFIG_P2P */
2940 break;
2941 case EVENT_INTERFACE_UNAVAILABLE:
2942 #ifdef CONFIG_P2P
2943 wpas_p2p_interface_unavailable(wpa_s);
2944 #endif /* CONFIG_P2P */
2945 break;
2946 case EVENT_BEST_CHANNEL:
2947 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
2948 "(%d %d %d)",
2949 data->best_chan.freq_24, data->best_chan.freq_5,
2950 data->best_chan.freq_overall);
2951 wpa_s->best_24_freq = data->best_chan.freq_24;
2952 wpa_s->best_5_freq = data->best_chan.freq_5;
2953 wpa_s->best_overall_freq = data->best_chan.freq_overall;
2954 #ifdef CONFIG_P2P
2955 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
2956 data->best_chan.freq_5,
2957 data->best_chan.freq_overall);
2958 #endif /* CONFIG_P2P */
2959 break;
2960 case EVENT_UNPROT_DEAUTH:
2961 wpa_supplicant_event_unprot_deauth(wpa_s,
2962 &data->unprot_deauth);
2963 break;
2964 case EVENT_UNPROT_DISASSOC:
2965 wpa_supplicant_event_unprot_disassoc(wpa_s,
2966 &data->unprot_disassoc);
2967 break;
2968 case EVENT_STATION_LOW_ACK:
2969 #ifdef CONFIG_AP
2970 if (wpa_s->ap_iface && data)
2971 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
2972 data->low_ack.addr);
2973 #endif /* CONFIG_AP */
2974 #ifdef CONFIG_TDLS
2975 if (data)
2976 wpa_tdls_disable_link(wpa_s->wpa, data->low_ack.addr);
2977 #endif /* CONFIG_TDLS */
2978 break;
2979 case EVENT_IBSS_PEER_LOST:
2980 #ifdef CONFIG_IBSS_RSN
2981 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
2982 #endif /* CONFIG_IBSS_RSN */
2983 break;
2984 case EVENT_DRIVER_GTK_REKEY:
2985 if (os_memcmp(data->driver_gtk_rekey.bssid,
2986 wpa_s->bssid, ETH_ALEN))
2987 break;
2988 if (!wpa_s->wpa)
2989 break;
2990 wpa_sm_update_replay_ctr(wpa_s->wpa,
2991 data->driver_gtk_rekey.replay_ctr);
2992 break;
2993 case EVENT_SCHED_SCAN_STOPPED:
2994 wpa_s->sched_scanning = 0;
2995 wpa_supplicant_notify_scanning(wpa_s, 0);
2996
2997 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
2998 break;
2999
3000 /*
3001 * If we timed out, start a new sched scan to continue
3002 * searching for more SSIDs.
3003 */
3004 if (wpa_s->sched_scan_timed_out)
3005 wpa_supplicant_req_sched_scan(wpa_s);
3006 break;
3007 case EVENT_WPS_BUTTON_PUSHED:
3008 #ifdef CONFIG_WPS
3009 wpas_wps_start_pbc(wpa_s, NULL, 0);
3010 #endif /* CONFIG_WPS */
3011 break;
3012 default:
3013 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
3014 break;
3015 }
3016 }
3017