2 * WPA Supplicant - Driver event processing
3 * Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi>
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
12 #include "eapol_supp/eapol_supp_sm.h"
13 #include "rsn_supp/wpa.h"
16 #include "l2_packet/l2_packet.h"
17 #include "wpa_supplicant_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"
29 #include "common/ieee802_11_defs.h"
30 #include "common/ieee802_11_common.h"
31 #include "crypto/random.h"
32 #include "blacklist.h"
33 #include "wpas_glue.h"
34 #include "wps_supplicant.h"
37 #include "gas_query.h"
38 #include "p2p_supplicant.h"
44 #include "offchannel.h"
45 #include "interworking.h"
51 #ifndef CONFIG_NO_SCAN_PROCESSING
52 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
53 int new_scan, int own_request);
54 #endif /* CONFIG_NO_SCAN_PROCESSING */
57 static int wpas_temp_disabled(struct wpa_supplicant *wpa_s,
58 struct wpa_ssid *ssid)
60 struct os_reltime now;
62 if (ssid == NULL || ssid->disabled_until.sec == 0)
66 if (ssid->disabled_until.sec > now.sec)
67 return ssid->disabled_until.sec - now.sec;
69 wpas_clear_temp_disabled(wpa_s, ssid, 0);
75 #ifndef CONFIG_NO_SCAN_PROCESSING
77 * wpas_reenabled_network_time - Time until first network is re-enabled
78 * @wpa_s: Pointer to wpa_supplicant data
79 * Returns: If all enabled networks are temporarily disabled, returns the time
80 * (in sec) until the first network is re-enabled. Otherwise returns 0.
82 * This function is used in case all enabled networks are temporarily disabled,
83 * in which case it returns the time (in sec) that the first network will be
84 * re-enabled. The function assumes that at least one network is enabled.
86 static int wpas_reenabled_network_time(struct wpa_supplicant *wpa_s)
88 struct wpa_ssid *ssid;
89 int disabled_for, res = 0;
91 #ifdef CONFIG_INTERWORKING
92 if (wpa_s->conf->auto_interworking && wpa_s->conf->interworking &&
95 #endif /* CONFIG_INTERWORKING */
97 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
101 disabled_for = wpas_temp_disabled(wpa_s, ssid);
105 if (!res || disabled_for < res)
111 #endif /* CONFIG_NO_SCAN_PROCESSING */
114 void wpas_network_reenabled(void *eloop_ctx, void *timeout_ctx)
116 struct wpa_supplicant *wpa_s = eloop_ctx;
118 if (wpa_s->disconnected || wpa_s->wpa_state != WPA_SCANNING)
121 wpa_dbg(wpa_s, MSG_DEBUG,
122 "Try to associate due to network getting re-enabled");
123 if (wpa_supplicant_fast_associate(wpa_s) != 1) {
124 wpa_supplicant_cancel_sched_scan(wpa_s);
125 wpa_supplicant_req_scan(wpa_s, 0, 0);
130 static struct wpa_bss * wpa_supplicant_get_new_bss(
131 struct wpa_supplicant *wpa_s, const u8 *bssid)
133 struct wpa_bss *bss = NULL;
134 struct wpa_ssid *ssid = wpa_s->current_ssid;
136 if (ssid->ssid_len > 0)
137 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
139 bss = wpa_bss_get_bssid(wpa_s, bssid);
145 static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s)
147 struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
150 wpa_supplicant_update_scan_results(wpa_s);
152 /* Get the BSS from the new scan results */
153 bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
157 wpa_s->current_bss = bss;
161 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
163 struct wpa_ssid *ssid, *old_ssid;
164 u8 drv_ssid[SSID_MAX_LEN];
168 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) {
169 wpa_supplicant_update_current_bss(wpa_s);
171 if (wpa_s->current_ssid->ssid_len == 0)
172 return 0; /* current profile still in use */
173 res = wpa_drv_get_ssid(wpa_s, drv_ssid);
175 wpa_msg(wpa_s, MSG_INFO,
176 "Failed to read SSID from driver");
177 return 0; /* try to use current profile */
181 if (drv_ssid_len == wpa_s->current_ssid->ssid_len &&
182 os_memcmp(drv_ssid, wpa_s->current_ssid->ssid,
184 return 0; /* current profile still in use */
186 wpa_msg(wpa_s, MSG_DEBUG,
187 "Driver-initiated BSS selection changed the SSID to %s",
188 wpa_ssid_txt(drv_ssid, drv_ssid_len));
189 /* continue selecting a new network profile */
192 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
194 ssid = wpa_supplicant_get_ssid(wpa_s);
196 wpa_msg(wpa_s, MSG_INFO,
197 "No network configuration found for the current AP");
201 if (wpas_network_disabled(wpa_s, ssid)) {
202 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
206 if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
207 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
208 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
212 res = wpas_temp_disabled(wpa_s, ssid);
214 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
215 "disabled for %d second(s)", res);
219 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
221 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
223 size_t wpa_ie_len = sizeof(wpa_ie);
224 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
225 wpa_ie, &wpa_ie_len) < 0)
226 wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
228 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
231 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
232 eapol_sm_invalidate_cached_session(wpa_s->eapol);
233 old_ssid = wpa_s->current_ssid;
234 wpa_s->current_ssid = ssid;
236 wpa_supplicant_update_current_bss(wpa_s);
238 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
239 wpa_supplicant_initiate_eapol(wpa_s);
240 if (old_ssid != wpa_s->current_ssid)
241 wpas_notify_network_changed(wpa_s);
247 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
249 struct wpa_supplicant *wpa_s = eloop_ctx;
251 if (wpa_s->countermeasures) {
252 wpa_s->countermeasures = 0;
253 wpa_drv_set_countermeasures(wpa_s, 0);
254 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
257 * It is possible that the device is sched scanning, which means
258 * that a connection attempt will be done only when we receive
259 * scan results. However, in this case, it would be preferable
260 * to scan and connect immediately, so cancel the sched_scan and
261 * issue a regular scan flow.
263 wpa_supplicant_cancel_sched_scan(wpa_s);
264 wpa_supplicant_req_scan(wpa_s, 0, 0);
269 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
273 wnm_bss_keep_alive_deinit(wpa_s);
275 #ifdef CONFIG_IBSS_RSN
276 ibss_rsn_deinit(wpa_s->ibss_rsn);
277 wpa_s->ibss_rsn = NULL;
278 #endif /* CONFIG_IBSS_RSN */
281 wpa_supplicant_ap_deinit(wpa_s);
282 #endif /* CONFIG_AP */
285 /* Clear possibly configured frame filters */
286 wpa_drv_configure_frame_filters(wpa_s, 0);
287 #endif /* CONFIG_HS20 */
289 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
292 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
293 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
294 os_memset(wpa_s->bssid, 0, ETH_ALEN);
295 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
296 sme_clear_on_disassoc(wpa_s);
297 wpa_s->current_bss = NULL;
298 wpa_s->assoc_freq = 0;
301 wpas_notify_bssid_changed(wpa_s);
303 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
304 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
305 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
306 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
307 wpa_s->ap_ies_from_associnfo = 0;
308 wpa_s->current_ssid = NULL;
309 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
312 wpas_rrm_reset(wpa_s);
313 wpa_s->wnmsleep_used = 0;
317 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
319 struct wpa_ie_data ie;
323 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
327 for (i = 0; i < ie.num_pmkid; i++) {
328 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
329 ie.pmkid + i * PMKID_LEN,
331 if (pmksa_set == 0) {
332 eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
337 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
338 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
342 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
343 union wpa_event_data *data)
346 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
350 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
351 " index=%d preauth=%d",
352 MAC2STR(data->pmkid_candidate.bssid),
353 data->pmkid_candidate.index,
354 data->pmkid_candidate.preauth);
356 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
357 data->pmkid_candidate.index,
358 data->pmkid_candidate.preauth);
362 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
364 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
365 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
368 #ifdef IEEE8021X_EAPOL
369 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
370 wpa_s->current_ssid &&
371 !(wpa_s->current_ssid->eapol_flags &
372 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
373 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
374 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
375 * plaintext or static WEP keys). */
378 #endif /* IEEE8021X_EAPOL */
385 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
386 * @wpa_s: pointer to wpa_supplicant data
387 * @ssid: Configuration data for the network
388 * Returns: 0 on success, -1 on failure
390 * This function is called when starting authentication with a network that is
391 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
393 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
394 struct wpa_ssid *ssid)
396 #ifdef IEEE8021X_EAPOL
398 int aka = 0, sim = 0;
400 if ((ssid != NULL && ssid->eap.pcsc == NULL) ||
401 wpa_s->scard != NULL || wpa_s->conf->external_sim)
404 if (ssid == NULL || ssid->eap.eap_methods == NULL) {
408 struct eap_method_type *eap = ssid->eap.eap_methods;
409 while (eap->vendor != EAP_VENDOR_IETF ||
410 eap->method != EAP_TYPE_NONE) {
411 if (eap->vendor == EAP_VENDOR_IETF) {
412 if (eap->method == EAP_TYPE_SIM)
414 else if (eap->method == EAP_TYPE_AKA ||
415 eap->method == EAP_TYPE_AKA_PRIME)
422 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
424 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
425 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
430 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
431 "use SIM, but neither EAP-SIM nor EAP-AKA are "
436 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
437 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
439 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
440 if (wpa_s->scard == NULL) {
441 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
445 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
446 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
447 #endif /* PCSC_FUNCS */
448 #endif /* IEEE8021X_EAPOL */
454 #ifndef CONFIG_NO_SCAN_PROCESSING
456 static int has_wep_key(struct wpa_ssid *ssid)
460 for (i = 0; i < NUM_WEP_KEYS; i++) {
461 if (ssid->wep_key_len[i])
469 static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
470 struct wpa_ssid *ssid)
474 if (ssid->mixed_cell)
478 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
480 #endif /* CONFIG_WPS */
482 if (has_wep_key(ssid))
485 #ifdef IEEE8021X_EAPOL
486 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
487 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
488 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
490 #endif /* IEEE8021X_EAPOL */
492 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
495 if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)
498 if (bss->caps & IEEE80211_CAP_PRIVACY)
504 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
505 struct wpa_ssid *ssid,
508 struct wpa_ie_data ie;
510 const u8 *rsn_ie, *wpa_ie;
514 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
518 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
519 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
520 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
521 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
522 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
524 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
525 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
528 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
529 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse "
535 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
537 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
542 if (!(ie.proto & ssid->proto)) {
543 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto "
548 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
549 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK "
554 if (!(ie.group_cipher & ssid->group_cipher)) {
555 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK "
560 if (!(ie.key_mgmt & ssid->key_mgmt)) {
561 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt "
566 #ifdef CONFIG_IEEE80211W
567 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
568 wpas_get_ssid_pmf(wpa_s, ssid) ==
569 MGMT_FRAME_PROTECTION_REQUIRED) {
570 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt "
574 #endif /* CONFIG_IEEE80211W */
575 if ((ie.capabilities & WPA_CAPABILITY_MFPR) &&
576 wpas_get_ssid_pmf(wpa_s, ssid) ==
577 NO_MGMT_FRAME_PROTECTION) {
578 wpa_dbg(wpa_s, MSG_DEBUG,
579 " skip RSN IE - no mgmt frame protection enabled but AP requires it");
583 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
584 wpas_mbo_get_bss_attr(bss, MBO_ATTR_ID_AP_CAPA_IND) &&
585 wpas_get_ssid_pmf(wpa_s, ssid) !=
586 NO_MGMT_FRAME_PROTECTION) {
587 wpa_dbg(wpa_s, MSG_DEBUG,
588 " skip RSN IE - no mgmt frame protection enabled on MBO AP");
591 #endif /* CONFIG_MBO */
593 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE");
597 #ifdef CONFIG_IEEE80211W
598 if (wpas_get_ssid_pmf(wpa_s, ssid) == MGMT_FRAME_PROTECTION_REQUIRED) {
599 wpa_dbg(wpa_s, MSG_DEBUG,
600 " skip - MFP Required but network not MFP Capable");
603 #endif /* CONFIG_IEEE80211W */
605 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
606 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
609 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
610 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse "
616 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
618 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
623 if (!(ie.proto & ssid->proto)) {
624 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto "
629 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
630 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK "
635 if (!(ie.group_cipher & ssid->group_cipher)) {
636 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK "
641 if (!(ie.key_mgmt & ssid->key_mgmt)) {
642 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt "
647 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE");
651 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
653 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X");
657 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
658 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
659 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match");
663 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) &&
664 wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) {
665 wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN");
669 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
670 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
674 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with "
681 static int freq_allowed(int *freqs, int freq)
688 for (i = 0; freqs[i]; i++)
689 if (freqs[i] == freq)
695 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
697 const struct hostapd_hw_modes *mode = NULL, *modes;
698 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
703 return 1; /* Cannot do matching without knowing band */
705 modes = wpa_s->hw.modes;
708 * The driver does not provide any additional information
709 * about the utilized hardware, so allow the connection attempt
715 for (i = 0; i < wpa_s->hw.num_modes; i++) {
716 for (j = 0; j < modes[i].num_channels; j++) {
717 int freq = modes[i].channels[j].freq;
718 if (freq == bss->freq) {
720 mode->mode == HOSTAPD_MODE_IEEE80211G)
721 break; /* do not allow 802.11b replace
732 for (i = 0; i < (int) sizeof(scan_ie); i++) {
733 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
737 for (j = 2; j < rate_ie[1] + 2; j++) {
738 int flagged = !!(rate_ie[j] & 0x80);
739 int r = (rate_ie[j] & 0x7f) * 5;
742 * IEEE Std 802.11n-2009 7.3.2.2:
743 * The new BSS Membership selector value is encoded
744 * like a legacy basic rate, but it is not a rate and
745 * only indicates if the BSS members are required to
746 * support the mandatory features of Clause 20 [HT PHY]
747 * in order to join the BSS.
749 if (flagged && ((rate_ie[j] & 0x7f) ==
750 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
751 if (!ht_supported(mode)) {
752 wpa_dbg(wpa_s, MSG_DEBUG,
753 " hardware does not support "
760 /* There's also a VHT selector for 802.11ac */
761 if (flagged && ((rate_ie[j] & 0x7f) ==
762 BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
763 if (!vht_supported(mode)) {
764 wpa_dbg(wpa_s, MSG_DEBUG,
765 " hardware does not support "
775 /* check for legacy basic rates */
776 for (k = 0; k < mode->num_rates; k++) {
777 if (mode->rates[k] == r)
780 if (k == mode->num_rates) {
782 * IEEE Std 802.11-2007 7.3.2.2 demands that in
783 * order to join a BSS all required rates
784 * have to be supported by the hardware.
786 wpa_dbg(wpa_s, MSG_DEBUG,
787 " hardware does not support required rate %d.%d Mbps (freq=%d mode==%d num_rates=%d)",
789 bss->freq, mode->mode, mode->num_rates);
800 * Test whether BSS is in an ESS.
801 * This is done differently in DMG (60 GHz) and non-DMG bands
803 static int bss_is_ess(struct wpa_bss *bss)
805 if (bss_is_dmg(bss)) {
806 return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
807 IEEE80211_CAP_DMG_AP;
810 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
815 static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask)
819 for (i = 0; i < ETH_ALEN; i++) {
820 if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i]))
827 static int addr_in_list(const u8 *addr, const u8 *list, size_t num)
831 for (i = 0; i < num; i++) {
832 const u8 *a = list + i * ETH_ALEN * 2;
833 const u8 *m = a + ETH_ALEN;
835 if (match_mac_mask(a, addr, m))
842 struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
843 int i, struct wpa_bss *bss,
844 struct wpa_ssid *group,
847 u8 wpa_ie_len, rsn_ie_len;
849 struct wpa_blacklist *e;
851 struct wpa_ssid *ssid;
854 const u8 *assoc_disallow;
855 #endif /* CONFIG_MBO */
857 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
858 wpa_ie_len = ie ? ie[1] : 0;
860 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
861 rsn_ie_len = ie ? ie[1] : 0;
863 ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
866 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
867 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d freq=%d %s%s%s",
868 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len),
869 wpa_ie_len, rsn_ie_len, bss->caps, bss->level, bss->freq,
870 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "",
871 (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
872 wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) ?
874 osen ? " osen=1" : "");
876 e = wpa_blacklist_get(wpa_s, bss->bssid);
879 if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
881 * When only a single network is enabled, we can
882 * trigger blacklisting on the first failure. This
883 * should not be done with multiple enabled networks to
884 * avoid getting forced to move into a worse ESS on
885 * single error if there are no other BSSes of the
890 if (e->count > limit) {
891 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
892 "(count=%d limit=%d)", e->count, limit);
897 if (bss->ssid_len == 0) {
898 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
902 if (disallowed_bssid(wpa_s, bss->bssid)) {
903 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed");
907 if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) {
908 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed");
912 wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
914 for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) {
915 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
918 if (wpas_network_disabled(wpa_s, ssid)) {
919 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
923 res = wpas_temp_disabled(wpa_s, ssid);
925 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled "
926 "temporarily for %d second(s)", res);
931 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
932 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
937 if (wpa && ssid->ssid_len == 0 &&
938 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
941 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
942 /* Only allow wildcard SSID match if an AP
943 * advertises active WPS operation that matches
946 if (ssid->ssid_len == 0 &&
947 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
950 #endif /* CONFIG_WPS */
952 if (ssid->bssid_set && ssid->ssid_len == 0 &&
953 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
957 (bss->ssid_len != ssid->ssid_len ||
958 os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) {
959 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
963 if (ssid->bssid_set &&
964 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
965 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
969 /* check blacklist */
970 if (ssid->num_bssid_blacklist &&
971 addr_in_list(bss->bssid, ssid->bssid_blacklist,
972 ssid->num_bssid_blacklist)) {
973 wpa_dbg(wpa_s, MSG_DEBUG,
974 " skip - BSSID blacklisted");
978 /* if there is a whitelist, only accept those APs */
979 if (ssid->num_bssid_whitelist &&
980 !addr_in_list(bss->bssid, ssid->bssid_whitelist,
981 ssid->num_bssid_whitelist)) {
982 wpa_dbg(wpa_s, MSG_DEBUG,
983 " skip - BSSID not in whitelist");
987 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
991 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
992 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
993 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
994 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network "
999 if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
1000 has_wep_key(ssid)) {
1001 wpa_dbg(wpa_s, MSG_DEBUG, " skip - ignore WPA/WPA2 AP for WEP network block");
1005 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen) {
1006 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-OSEN network "
1011 if (!wpa_supplicant_match_privacy(bss, ssid)) {
1012 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy "
1017 if (ssid->mode != IEEE80211_MODE_MESH && !bss_is_ess(bss) &&
1018 !bss_is_pbss(bss)) {
1019 wpa_dbg(wpa_s, MSG_DEBUG,
1020 " skip - not ESS, PBSS, or MBSS");
1024 if (ssid->pbss != 2 && ssid->pbss != bss_is_pbss(bss)) {
1025 wpa_dbg(wpa_s, MSG_DEBUG, " skip - PBSS mismatch (ssid %d bss %d)",
1026 ssid->pbss, bss_is_pbss(bss));
1030 if (!freq_allowed(ssid->freq_list, bss->freq)) {
1031 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not "
1037 if (ssid->mode == IEEE80211_MODE_MESH && ssid->frequency > 0 &&
1038 ssid->frequency != bss->freq) {
1039 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not allowed (mesh)");
1042 #endif /* CONFIG_MESH */
1044 if (!rate_match(wpa_s, bss)) {
1045 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do "
1051 if (ssid->p2p_group &&
1052 !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
1053 !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
1054 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P IE seen");
1058 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
1059 struct wpabuf *p2p_ie;
1060 u8 dev_addr[ETH_ALEN];
1062 ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
1064 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P element");
1067 p2p_ie = wpa_bss_get_vendor_ie_multi(
1068 bss, P2P_IE_VENDOR_TYPE);
1069 if (p2p_ie == NULL) {
1070 wpa_dbg(wpa_s, MSG_DEBUG, " skip - could not fetch P2P element");
1074 if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0
1075 || os_memcmp(dev_addr, ssid->go_p2p_dev_addr,
1077 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no matching GO P2P Device Address in P2P element");
1078 wpabuf_free(p2p_ie);
1081 wpabuf_free(p2p_ie);
1085 * TODO: skip the AP if its P2P IE has Group Formation
1086 * bit set in the P2P Group Capability Bitmap and we
1087 * are not in Group Formation with that device.
1089 #endif /* CONFIG_P2P */
1091 if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time))
1093 struct os_reltime diff;
1095 os_reltime_sub(&wpa_s->scan_min_time,
1096 &bss->last_update, &diff);
1097 wpa_dbg(wpa_s, MSG_DEBUG,
1098 " skip - scan result not recent enough (%u.%06u seconds too old)",
1099 (unsigned int) diff.sec,
1100 (unsigned int) diff.usec);
1104 assoc_disallow = wpas_mbo_get_bss_attr(
1105 bss, MBO_ATTR_ID_ASSOC_DISALLOW);
1106 if (assoc_disallow && assoc_disallow[1] >= 1) {
1107 wpa_dbg(wpa_s, MSG_DEBUG,
1108 " skip - MBO association disallowed (reason %u)",
1113 if (wpa_is_bss_tmp_disallowed(wpa_s, bss->bssid)) {
1114 wpa_dbg(wpa_s, MSG_DEBUG,
1115 " skip - MBO retry delay has not passed yet");
1118 #endif /* CONFIG_MBO */
1120 /* Matching configuration found */
1124 /* No matching configuration found */
1129 static struct wpa_bss *
1130 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
1131 struct wpa_ssid *group,
1132 struct wpa_ssid **selected_ssid,
1133 int only_first_ssid)
1137 if (only_first_ssid)
1138 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
1141 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
1144 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
1145 struct wpa_bss *bss = wpa_s->last_scan_res[i];
1146 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
1148 if (!*selected_ssid)
1150 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
1152 MAC2STR(bss->bssid),
1153 wpa_ssid_txt(bss->ssid, bss->ssid_len));
1161 struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
1162 struct wpa_ssid **selected_ssid)
1164 struct wpa_bss *selected = NULL;
1166 struct wpa_ssid *next_ssid = NULL;
1167 struct wpa_ssid *ssid;
1169 if (wpa_s->last_scan_res == NULL ||
1170 wpa_s->last_scan_res_used == 0)
1171 return NULL; /* no scan results from last update */
1173 if (wpa_s->next_ssid) {
1174 /* check that next_ssid is still valid */
1175 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1176 if (ssid == wpa_s->next_ssid)
1180 wpa_s->next_ssid = NULL;
1183 while (selected == NULL) {
1184 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1185 if (next_ssid && next_ssid->priority ==
1186 wpa_s->conf->pssid[prio]->priority) {
1187 selected = wpa_supplicant_select_bss(
1188 wpa_s, next_ssid, selected_ssid, 1);
1192 selected = wpa_supplicant_select_bss(
1193 wpa_s, wpa_s->conf->pssid[prio],
1199 if (selected == NULL && wpa_s->blacklist &&
1200 !wpa_s->countermeasures) {
1201 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
1202 "blacklist and try again");
1203 wpa_blacklist_clear(wpa_s);
1204 wpa_s->blacklist_cleared++;
1205 } else if (selected == NULL)
1209 ssid = *selected_ssid;
1210 if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set &&
1211 !ssid->passphrase && !ssid->ext_psk) {
1212 const char *field_name, *txt = NULL;
1214 wpa_dbg(wpa_s, MSG_DEBUG,
1215 "PSK/passphrase not yet available for the selected network");
1217 wpas_notify_network_request(wpa_s, ssid,
1218 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL);
1220 field_name = wpa_supplicant_ctrl_req_to_string(
1221 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt);
1222 if (field_name == NULL)
1225 wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
1234 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
1235 int timeout_sec, int timeout_usec)
1237 if (!wpa_supplicant_enabled_networks(wpa_s)) {
1239 * No networks are enabled; short-circuit request so
1240 * we don't wait timeout seconds before transitioning
1241 * to INACTIVE state.
1243 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1244 "since there are no enabled networks");
1245 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1249 wpa_s->scan_for_connection = 1;
1250 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
1254 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
1255 struct wpa_bss *selected,
1256 struct wpa_ssid *ssid)
1258 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
1259 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
1260 "PBC session overlap");
1261 wpas_notify_wps_event_pbc_overlap(wpa_s);
1263 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
1264 wpa_s->p2p_in_provisioning) {
1265 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
1269 #endif /* CONFIG_P2P */
1272 wpas_wps_pbc_overlap(wpa_s);
1273 wpas_wps_cancel(wpa_s);
1274 #endif /* CONFIG_WPS */
1278 wpa_msg(wpa_s, MSG_DEBUG,
1279 "Considering connect request: reassociate: %d selected: "
1280 MACSTR " bssid: " MACSTR " pending: " MACSTR
1281 " wpa_state: %s ssid=%p current_ssid=%p",
1282 wpa_s->reassociate, MAC2STR(selected->bssid),
1283 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
1284 wpa_supplicant_state_txt(wpa_s->wpa_state),
1285 ssid, wpa_s->current_ssid);
1288 * Do not trigger new association unless the BSSID has changed or if
1289 * reassociation is requested. If we are in process of associating with
1290 * the selected BSSID, do not trigger new attempt.
1292 if (wpa_s->reassociate ||
1293 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
1294 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
1295 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
1296 (!is_zero_ether_addr(wpa_s->pending_bssid) &&
1297 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
1299 (is_zero_ether_addr(wpa_s->pending_bssid) &&
1300 ssid != wpa_s->current_ssid)))) {
1301 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
1302 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
1305 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
1306 MAC2STR(selected->bssid));
1307 wpa_supplicant_associate(wpa_s, selected, ssid);
1309 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
1310 "connect with the selected AP");
1317 static struct wpa_ssid *
1318 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
1321 struct wpa_ssid *ssid;
1323 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1324 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
1326 if (wpas_network_disabled(wpa_s, ssid))
1328 if (ssid->mode == IEEE80211_MODE_IBSS ||
1329 ssid->mode == IEEE80211_MODE_AP ||
1330 ssid->mode == IEEE80211_MODE_MESH)
1338 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
1339 * on BSS added and BSS changed events */
1340 static void wpa_supplicant_rsn_preauth_scan_results(
1341 struct wpa_supplicant *wpa_s)
1343 struct wpa_bss *bss;
1345 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
1348 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1349 const u8 *ssid, *rsn;
1351 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
1355 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1359 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
1365 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
1366 struct wpa_bss *selected,
1367 struct wpa_ssid *ssid)
1369 struct wpa_bss *current_bss = NULL;
1370 #ifndef CONFIG_NO_ROAMING
1373 #endif /* CONFIG_NO_ROAMING */
1375 if (wpa_s->reassociate)
1376 return 1; /* explicit request to reassociate */
1377 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1378 return 1; /* we are not associated; continue */
1379 if (wpa_s->current_ssid == NULL)
1380 return 1; /* unknown current SSID */
1381 if (wpa_s->current_ssid != ssid)
1382 return 1; /* different network block */
1384 if (wpas_driver_bss_selection(wpa_s))
1385 return 0; /* Driver-based roaming */
1387 if (wpa_s->current_ssid->ssid)
1388 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
1389 wpa_s->current_ssid->ssid,
1390 wpa_s->current_ssid->ssid_len);
1392 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
1395 return 1; /* current BSS not seen in scan results */
1397 if (current_bss == selected)
1400 if (selected->last_update_idx > current_bss->last_update_idx)
1401 return 1; /* current BSS not seen in the last scan */
1403 #ifndef CONFIG_NO_ROAMING
1404 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1405 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR
1406 " level=%d snr=%d est_throughput=%u",
1407 MAC2STR(current_bss->bssid), current_bss->level,
1408 current_bss->snr, current_bss->est_throughput);
1409 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR
1410 " level=%d snr=%d est_throughput=%u",
1411 MAC2STR(selected->bssid), selected->level,
1412 selected->snr, selected->est_throughput);
1414 if (wpa_s->current_ssid->bssid_set &&
1415 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1417 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1418 "has preferred BSSID");
1422 if (selected->est_throughput > current_bss->est_throughput + 5000) {
1423 wpa_dbg(wpa_s, MSG_DEBUG,
1424 "Allow reassociation - selected BSS has better estimated throughput");
1428 to_5ghz = selected->freq > 4000 && current_bss->freq < 4000;
1430 if (current_bss->level < 0 &&
1431 current_bss->level > selected->level + to_5ghz * 2) {
1432 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1438 if (current_bss->level < 0) {
1439 if (current_bss->level < -85)
1441 else if (current_bss->level < -80)
1443 else if (current_bss->level < -75)
1445 else if (current_bss->level < -70)
1451 /* Make it easier to move to 5 GHz band */
1457 if (abs(current_bss->level - selected->level) < min_diff) {
1458 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
1464 #else /* CONFIG_NO_ROAMING */
1466 #endif /* CONFIG_NO_ROAMING */
1470 /* Return != 0 if no scan results could be fetched or if scan results should not
1471 * be shared with other virtual interfaces. */
1472 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1473 union wpa_event_data *data,
1476 struct wpa_scan_results *scan_res = NULL;
1479 #ifndef CONFIG_NO_RANDOM_POOL
1481 #endif /* CONFIG_NO_RANDOM_POOL */
1484 if (wpa_s->ap_iface)
1486 #endif /* CONFIG_AP */
1488 wpa_supplicant_notify_scanning(wpa_s, 0);
1490 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1491 data ? &data->scan_info :
1493 if (scan_res == NULL) {
1494 if (wpa_s->conf->ap_scan == 2 || ap ||
1495 wpa_s->scan_res_handler == scan_only_handler)
1499 if (data && data->scan_info.external_scan)
1501 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1503 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1505 goto scan_work_done;
1508 #ifndef CONFIG_NO_RANDOM_POOL
1509 num = scan_res->num;
1512 for (i = 0; i < num; i++) {
1514 struct wpa_scan_res *res = scan_res->res[i];
1515 buf[0] = res->bssid[5];
1516 buf[1] = res->qual & 0xff;
1517 buf[2] = res->noise & 0xff;
1518 buf[3] = res->level & 0xff;
1519 buf[4] = res->tsf & 0xff;
1520 random_add_randomness(buf, sizeof(buf));
1522 #endif /* CONFIG_NO_RANDOM_POOL */
1524 if (own_request && wpa_s->scan_res_handler &&
1525 !(data && data->scan_info.external_scan)) {
1526 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1527 struct wpa_scan_results *scan_res);
1529 scan_res_handler = wpa_s->scan_res_handler;
1530 wpa_s->scan_res_handler = NULL;
1531 scan_res_handler(wpa_s, scan_res);
1533 goto scan_work_done;
1537 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
1539 if (wpa_s->ap_iface->scan_cb)
1540 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1541 #endif /* CONFIG_AP */
1542 goto scan_work_done;
1545 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
1546 wpa_s->own_scan_running,
1547 data ? data->scan_info.external_scan : 0);
1548 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
1549 wpa_s->manual_scan_use_id && wpa_s->own_scan_running &&
1550 own_request && !(data && data->scan_info.external_scan)) {
1551 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
1552 wpa_s->manual_scan_id);
1553 wpa_s->manual_scan_use_id = 0;
1555 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1557 wpas_notify_scan_results(wpa_s);
1559 wpas_notify_scan_done(wpa_s, 1);
1561 if (data && data->scan_info.external_scan) {
1562 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
1563 wpa_scan_results_free(scan_res);
1567 if (wnm_scan_process(wpa_s, 1) > 0)
1568 goto scan_work_done;
1570 if (sme_proc_obss_scan(wpa_s) > 0)
1571 goto scan_work_done;
1573 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
1574 goto scan_work_done;
1576 if (autoscan_notify_scan(wpa_s, scan_res))
1577 goto scan_work_done;
1579 if (wpa_s->disconnected) {
1580 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1581 goto scan_work_done;
1584 if (!wpas_driver_bss_selection(wpa_s) &&
1585 bgscan_notify_scan(wpa_s, scan_res) == 1)
1586 goto scan_work_done;
1588 wpas_wps_update_ap_info(wpa_s, scan_res);
1590 if (wpa_s->wpa_state >= WPA_AUTHENTICATING &&
1591 wpa_s->wpa_state < WPA_COMPLETED)
1592 goto scan_work_done;
1594 wpa_scan_results_free(scan_res);
1596 if (own_request && wpa_s->scan_work) {
1597 struct wpa_radio_work *work = wpa_s->scan_work;
1598 wpa_s->scan_work = NULL;
1599 radio_work_done(work);
1602 return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
1605 wpa_scan_results_free(scan_res);
1606 if (own_request && wpa_s->scan_work) {
1607 struct wpa_radio_work *work = wpa_s->scan_work;
1608 wpa_s->scan_work = NULL;
1609 radio_work_done(work);
1615 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
1616 int new_scan, int own_request)
1618 struct wpa_bss *selected;
1619 struct wpa_ssid *ssid = NULL;
1620 int time_to_reenable = wpas_reenabled_network_time(wpa_s);
1622 if (time_to_reenable > 0) {
1623 wpa_dbg(wpa_s, MSG_DEBUG,
1624 "Postpone network selection by %d seconds since all networks are disabled",
1626 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
1627 eloop_register_timeout(time_to_reenable, 0,
1628 wpas_network_reenabled, wpa_s, NULL);
1632 if (wpa_s->p2p_mgmt)
1633 return 0; /* no normal connection on p2p_mgmt interface */
1635 selected = wpa_supplicant_pick_network(wpa_s, &ssid);
1639 wpa_msg(wpa_s, MSG_INFO,
1640 "Avoiding join because we already joined a mesh group");
1643 #endif /* CONFIG_MESH */
1647 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
1650 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1654 if (ssid != wpa_s->current_ssid &&
1655 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1656 wpa_s->own_disconnect_req = 1;
1657 wpa_supplicant_deauthenticate(
1658 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1661 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1662 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1666 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1668 * Do not notify other virtual radios of scan results since we do not
1669 * want them to start other associations at the same time.
1673 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
1674 ssid = wpa_supplicant_pick_new_network(wpa_s);
1676 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
1677 wpa_supplicant_associate(wpa_s, NULL, ssid);
1679 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1680 } else if (own_request) {
1682 * No SSID found. If SCAN results are as a result of
1683 * own scan request and not due to a scan request on
1684 * another shared interface, try another scan.
1686 int timeout_sec = wpa_s->scan_interval;
1687 int timeout_usec = 0;
1691 res = wpas_p2p_scan_no_go_seen(wpa_s);
1697 if (wpa_s->p2p_in_provisioning ||
1698 wpa_s->show_group_started ||
1699 wpa_s->p2p_in_invitation) {
1701 * Use shorter wait during P2P Provisioning
1702 * state and during P2P join-a-group operation
1703 * to speed up group formation.
1706 timeout_usec = 250000;
1707 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1711 #endif /* CONFIG_P2P */
1712 #ifdef CONFIG_INTERWORKING
1713 if (wpa_s->conf->auto_interworking &&
1714 wpa_s->conf->interworking &&
1715 wpa_s->conf->cred) {
1716 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
1717 "start ANQP fetch since no matching "
1719 wpa_s->network_select = 1;
1720 wpa_s->auto_network_select = 1;
1721 interworking_start_fetch_anqp(wpa_s);
1724 #endif /* CONFIG_INTERWORKING */
1726 if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
1727 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
1729 timeout_usec = 500000;
1730 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1734 #endif /* CONFIG_WPS */
1735 if (wpa_supplicant_req_sched_scan(wpa_s))
1736 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1739 wpa_msg_ctrl(wpa_s, MSG_INFO,
1740 WPA_EVENT_NETWORK_NOT_FOUND);
1747 static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1748 union wpa_event_data *data)
1750 struct wpa_supplicant *ifs;
1753 res = _wpa_supplicant_event_scan_results(wpa_s, data, 1);
1756 * Interface may have been removed, so must not dereference
1763 * If no scan results could be fetched, then no need to
1764 * notify those interfaces that did not actually request
1765 * this scan. Similarly, if scan results started a new operation on this
1766 * interface, do not notify other interfaces to avoid concurrent
1767 * operations during a connection attempt.
1773 * Check other interfaces to see if they share the same radio. If
1774 * so, they get updated with this same scan info.
1776 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
1779 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1780 "sibling", ifs->ifname);
1781 _wpa_supplicant_event_scan_results(ifs, data, 0);
1788 #endif /* CONFIG_NO_SCAN_PROCESSING */
1791 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
1793 #ifdef CONFIG_NO_SCAN_PROCESSING
1795 #else /* CONFIG_NO_SCAN_PROCESSING */
1796 struct os_reltime now;
1798 if (wpa_s->last_scan_res_used == 0)
1801 os_get_reltime(&now);
1802 if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) {
1803 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
1807 return wpas_select_network_from_last_scan(wpa_s, 0, 1);
1808 #endif /* CONFIG_NO_SCAN_PROCESSING */
1813 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
1815 struct wpa_supplicant *wpa_s = eloop_ctx;
1817 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1820 if (!wpa_s->no_keep_alive) {
1821 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1822 MAC2STR(wpa_s->bssid));
1823 /* TODO: could skip this if normal data traffic has been sent */
1824 /* TODO: Consider using some more appropriate data frame for
1827 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
1832 if (wpa_s->sme.bss_max_idle_period) {
1834 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1837 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1838 wnm_bss_keep_alive, wpa_s, NULL);
1840 #endif /* CONFIG_SME */
1844 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1845 const u8 *ies, size_t ies_len)
1847 struct ieee802_11_elems elems;
1852 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1856 if (elems.bss_max_idle_period) {
1858 wpa_s->sme.bss_max_idle_period =
1859 WPA_GET_LE16(elems.bss_max_idle_period);
1860 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1861 "TU)%s", wpa_s->sme.bss_max_idle_period,
1862 (elems.bss_max_idle_period[2] & 0x01) ?
1863 " (protected keep-live required)" : "");
1864 if (wpa_s->sme.bss_max_idle_period == 0)
1865 wpa_s->sme.bss_max_idle_period = 1;
1866 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1867 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1868 /* msec times 1000 */
1869 msec = wpa_s->sme.bss_max_idle_period * 1024;
1872 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1873 wnm_bss_keep_alive, wpa_s,
1877 #endif /* CONFIG_SME */
1880 #endif /* CONFIG_WNM */
1883 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1886 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1887 #endif /* CONFIG_WNM */
1891 #ifdef CONFIG_INTERWORKING
1893 static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
1898 wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
1899 res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
1901 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
1908 static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
1909 const u8 *ies, size_t ies_len)
1911 struct ieee802_11_elems elems;
1916 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1919 if (elems.qos_map_set) {
1920 wpas_qos_map_set(wpa_s, elems.qos_map_set,
1921 elems.qos_map_set_len);
1925 #endif /* CONFIG_INTERWORKING */
1929 static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s,
1930 const u8 *ie, size_t ie_len)
1932 struct mb_ies_info mb_ies;
1934 if (!ie || !ie_len || !wpa_s->fst)
1937 os_memset(&mb_ies, 0, sizeof(mb_ies));
1939 while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) {
1944 wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found",
1949 if (ie[0] == WLAN_EID_MULTI_BAND) {
1950 wpa_printf(MSG_DEBUG, "MB IE of %u bytes found",
1951 (unsigned int) len);
1952 mb_ies.ies[mb_ies.nof_ies].ie = ie + 2;
1953 mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2;
1961 if (mb_ies.nof_ies > 0) {
1962 wpabuf_free(wpa_s->received_mb_ies);
1963 wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies);
1969 #endif /* CONFIG_FST */
1972 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1973 union wpa_event_data *data)
1975 int l, len, found = 0, wpa_found, rsn_found;
1977 #ifdef CONFIG_IEEE80211R
1979 #endif /* CONFIG_IEEE80211R */
1981 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
1982 if (data->assoc_info.req_ies)
1983 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1984 data->assoc_info.req_ies_len);
1985 if (data->assoc_info.resp_ies) {
1986 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1987 data->assoc_info.resp_ies_len);
1989 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1990 data->assoc_info.resp_ies_len);
1991 #endif /* CONFIG_TDLS */
1993 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1994 data->assoc_info.resp_ies_len);
1995 #endif /* CONFIG_WNM */
1996 #ifdef CONFIG_INTERWORKING
1997 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1998 data->assoc_info.resp_ies_len);
1999 #endif /* CONFIG_INTERWORKING */
2001 if (data->assoc_info.beacon_ies)
2002 wpa_hexdump(MSG_DEBUG, "beacon_ies",
2003 data->assoc_info.beacon_ies,
2004 data->assoc_info.beacon_ies_len);
2005 if (data->assoc_info.freq)
2006 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
2007 data->assoc_info.freq);
2009 p = data->assoc_info.req_ies;
2010 l = data->assoc_info.req_ies_len;
2012 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
2013 while (p && l >= 2) {
2016 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2020 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2021 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
2022 (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 &&
2023 (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) ||
2024 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
2025 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
2028 wpa_find_assoc_pmkid(wpa_s);
2034 if (!found && data->assoc_info.req_ies)
2035 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
2037 #ifdef CONFIG_IEEE80211R
2039 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
2040 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2041 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2042 data->assoc_info.resp_ies,
2043 data->assoc_info.resp_ies_len,
2045 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2046 "Reassociation Response failed");
2047 wpa_supplicant_deauthenticate(
2048 wpa_s, WLAN_REASON_INVALID_IE);
2053 p = data->assoc_info.resp_ies;
2054 l = data->assoc_info.resp_ies_len;
2056 #ifdef CONFIG_WPS_STRICT
2057 if (p && wpa_s->current_ssid &&
2058 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
2060 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
2062 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
2063 "include WPS IE in (Re)Association Response");
2067 if (wps_validate_assoc_resp(wps) < 0) {
2069 wpa_supplicant_deauthenticate(
2070 wpa_s, WLAN_REASON_INVALID_IE);
2075 #endif /* CONFIG_WPS_STRICT */
2077 /* Go through the IEs and make a copy of the MDIE, if present. */
2078 while (p && l >= 2) {
2081 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2085 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
2086 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
2087 wpa_s->sme.ft_used = 1;
2088 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
2089 MOBILITY_DOMAIN_ID_LEN);
2095 #endif /* CONFIG_SME */
2097 /* Process FT when SME is in the driver */
2098 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
2099 wpa_ft_is_completed(wpa_s->wpa)) {
2100 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2101 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2102 data->assoc_info.resp_ies,
2103 data->assoc_info.resp_ies_len,
2105 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2106 "Reassociation Response failed");
2107 wpa_supplicant_deauthenticate(
2108 wpa_s, WLAN_REASON_INVALID_IE);
2111 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
2114 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
2115 data->assoc_info.resp_ies_len);
2116 #endif /* CONFIG_IEEE80211R */
2118 /* WPA/RSN IE from Beacon/ProbeResp */
2119 p = data->assoc_info.beacon_ies;
2120 l = data->assoc_info.beacon_ies_len;
2122 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
2124 wpa_found = rsn_found = 0;
2125 while (p && l >= 2) {
2128 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
2133 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2134 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
2136 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
2140 p[0] == WLAN_EID_RSN && p[1] >= 2) {
2142 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
2149 if (!wpa_found && data->assoc_info.beacon_ies)
2150 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
2151 if (!rsn_found && data->assoc_info.beacon_ies)
2152 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
2153 if (wpa_found || rsn_found)
2154 wpa_s->ap_ies_from_associnfo = 1;
2156 if (wpa_s->assoc_freq && data->assoc_info.freq &&
2157 wpa_s->assoc_freq != data->assoc_info.freq) {
2158 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
2160 wpa_s->assoc_freq, data->assoc_info.freq);
2161 wpa_supplicant_update_scan_results(wpa_s);
2164 wpa_s->assoc_freq = data->assoc_info.freq;
2170 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
2172 const u8 *bss_wpa = NULL, *bss_rsn = NULL;
2174 if (!wpa_s->current_bss || !wpa_s->current_ssid)
2177 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
2180 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
2181 WPA_IE_VENDOR_TYPE);
2182 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
2184 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
2185 bss_wpa ? 2 + bss_wpa[1] : 0) ||
2186 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
2187 bss_rsn ? 2 + bss_rsn[1] : 0))
2194 static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s,
2195 union wpa_event_data *data)
2198 struct assoc_info *ai = data ? &data->assoc_info : NULL;
2199 struct wpa_bss *bss = wpa_s->current_bss;
2200 const u8 *ieprb, *iebcn;
2202 wpabuf_free(wpa_s->received_mb_ies);
2203 wpa_s->received_mb_ies = NULL;
2206 !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) {
2207 wpa_printf(MSG_DEBUG,
2208 "FST: MB IEs updated from Association Response frame");
2213 !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) {
2214 wpa_printf(MSG_DEBUG,
2215 "FST: MB IEs updated from association event Beacon IEs");
2222 ieprb = (const u8 *) (bss + 1);
2223 iebcn = ieprb + bss->ie_len;
2225 if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len))
2226 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE");
2227 else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len))
2228 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE");
2229 #endif /* CONFIG_FST */
2233 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
2234 union wpa_event_data *data)
2241 if (wpa_s->ap_iface) {
2244 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
2245 data->assoc_info.addr,
2246 data->assoc_info.req_ies,
2247 data->assoc_info.req_ies_len,
2248 data->assoc_info.reassoc);
2251 #endif /* CONFIG_AP */
2253 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
2255 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
2256 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
2259 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
2260 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
2261 wpa_supplicant_deauthenticate(
2262 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2266 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
2267 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
2268 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
2269 MACSTR, MAC2STR(bssid));
2271 random_add_randomness(bssid, ETH_ALEN);
2272 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
2273 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
2274 wpas_notify_bssid_changed(wpa_s);
2276 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
2277 wpa_clear_keys(wpa_s, bssid);
2279 if (wpa_supplicant_select_config(wpa_s) < 0) {
2280 wpa_supplicant_deauthenticate(
2281 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2286 if (wpa_s->conf->ap_scan == 1 &&
2287 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
2288 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss)
2289 wpa_msg(wpa_s, MSG_WARNING,
2290 "WPA/RSN IEs not updated");
2293 wpas_fst_update_mb_assoc(wpa_s, data);
2296 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
2297 wpa_s->sme.prev_bssid_set = 1;
2298 wpa_s->sme.last_unprot_disconnect.sec = 0;
2299 #endif /* CONFIG_SME */
2301 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
2302 if (wpa_s->current_ssid) {
2303 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
2304 * initialized before association, but for other modes,
2305 * initialize PC/SC here, if the current configuration needs
2306 * smartcard or SIM/USIM. */
2307 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
2309 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
2311 l2_packet_notify_auth_start(wpa_s->l2);
2314 * Set portEnabled first to FALSE in order to get EAP state machine out
2315 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
2316 * state machine may transit to AUTHENTICATING state based on obsolete
2317 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
2318 * AUTHENTICATED without ever giving chance to EAP state machine to
2321 if (!ft_completed) {
2322 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
2323 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
2325 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
2326 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
2327 /* 802.1X::portControl = Auto */
2328 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
2329 wpa_s->eapol_received = 0;
2330 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2331 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
2332 (wpa_s->current_ssid &&
2333 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
2334 if (wpa_s->current_ssid &&
2335 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
2337 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2339 * Set the key after having received joined-IBSS event
2342 wpa_supplicant_set_wpa_none_key(wpa_s,
2343 wpa_s->current_ssid);
2345 wpa_supplicant_cancel_auth_timeout(wpa_s);
2346 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2347 } else if (!ft_completed) {
2348 /* Timeout for receiving the first EAPOL packet */
2349 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
2351 wpa_supplicant_cancel_scan(wpa_s);
2353 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2354 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
2356 * We are done; the driver will take care of RSN 4-way
2359 wpa_supplicant_cancel_auth_timeout(wpa_s);
2360 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2361 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2362 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2363 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2364 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
2366 * The driver will take care of RSN 4-way handshake, so we need
2367 * to allow EAPOL supplicant to complete its work without
2368 * waiting for WPA supplicant.
2370 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2371 } else if (ft_completed) {
2373 * FT protocol completed - make sure EAPOL state machine ends
2374 * up in authenticated.
2376 wpa_supplicant_cancel_auth_timeout(wpa_s);
2377 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2378 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2379 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2382 wpa_s->last_eapol_matches_bssid = 0;
2384 if (wpa_s->pending_eapol_rx) {
2385 struct os_reltime now, age;
2386 os_get_reltime(&now);
2387 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
2388 if (age.sec == 0 && age.usec < 100000 &&
2389 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
2391 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
2392 "frame that was received just before "
2393 "association notification");
2394 wpa_supplicant_rx_eapol(
2395 wpa_s, wpa_s->pending_eapol_rx_src,
2396 wpabuf_head(wpa_s->pending_eapol_rx),
2397 wpabuf_len(wpa_s->pending_eapol_rx));
2399 wpabuf_free(wpa_s->pending_eapol_rx);
2400 wpa_s->pending_eapol_rx = NULL;
2403 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2404 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
2405 wpa_s->current_ssid &&
2406 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2407 /* Set static WEP keys again */
2408 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
2411 #ifdef CONFIG_IBSS_RSN
2412 if (wpa_s->current_ssid &&
2413 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
2414 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
2415 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
2416 wpa_s->ibss_rsn == NULL) {
2417 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
2418 if (!wpa_s->ibss_rsn) {
2419 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
2420 wpa_supplicant_deauthenticate(
2421 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2425 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
2427 #endif /* CONFIG_IBSS_RSN */
2429 wpas_wps_notify_assoc(wpa_s, bssid);
2432 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
2433 data->assoc_info.resp_ies_len,
2434 &data->assoc_info.wmm_params);
2436 if (wpa_s->reassoc_same_bss)
2437 wmm_ac_restore_tspecs(wpa_s);
2442 static int disconnect_reason_recoverable(u16 reason_code)
2444 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
2445 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
2446 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
2450 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
2452 int locally_generated)
2456 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2458 * At least Host AP driver and a Prism3 card seemed to be
2459 * generating streams of disconnected events when configuring
2460 * IBSS for WPA-None. Ignore them for now.
2465 bssid = wpa_s->bssid;
2466 if (is_zero_ether_addr(bssid))
2467 bssid = wpa_s->pending_bssid;
2469 if (!is_zero_ether_addr(bssid) ||
2470 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2471 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
2473 MAC2STR(bssid), reason_code,
2474 locally_generated ? " locally_generated=1" : "");
2479 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
2480 int locally_generated)
2482 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
2483 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
2484 return 0; /* Not in 4-way handshake with PSK */
2487 * It looks like connection was lost while trying to go through PSK
2488 * 4-way handshake. Filter out known disconnection cases that are caused
2489 * by something else than PSK mismatch to avoid confusing reports.
2492 if (locally_generated) {
2493 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
2501 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
2503 int locally_generated)
2507 u8 prev_pending_bssid[ETH_ALEN];
2508 struct wpa_bss *fast_reconnect = NULL;
2509 struct wpa_ssid *fast_reconnect_ssid = NULL;
2510 struct wpa_ssid *last_ssid;
2512 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
2513 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
2515 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2517 * At least Host AP driver and a Prism3 card seemed to be
2518 * generating streams of disconnected events when configuring
2519 * IBSS for WPA-None. Ignore them for now.
2521 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
2522 "IBSS/WPA-None mode");
2526 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
2527 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
2528 "pre-shared key may be incorrect");
2529 if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
2530 return; /* P2P group removed */
2531 wpas_auth_failed(wpa_s, "WRONG_KEY");
2533 if (!wpa_s->disconnected &&
2534 (!wpa_s->auto_reconnect_disabled ||
2535 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
2536 wpas_wps_searching(wpa_s) ||
2537 wpas_wps_reenable_networks_pending(wpa_s))) {
2538 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
2539 "reconnect (wps=%d/%d wpa_state=%d)",
2540 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
2541 wpas_wps_searching(wpa_s),
2543 if (wpa_s->wpa_state == WPA_COMPLETED &&
2544 wpa_s->current_ssid &&
2545 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
2546 !locally_generated &&
2547 disconnect_reason_recoverable(reason_code)) {
2549 * It looks like the AP has dropped association with
2550 * us, but could allow us to get back in. Try to
2551 * reconnect to the same BSS without full scan to save
2552 * time for some common cases.
2554 fast_reconnect = wpa_s->current_bss;
2555 fast_reconnect_ssid = wpa_s->current_ssid;
2556 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
2557 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2559 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
2562 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
2563 "try to re-connect");
2564 wpa_s->reassociate = 0;
2565 wpa_s->disconnected = 1;
2567 wpa_supplicant_cancel_sched_scan(wpa_s);
2569 bssid = wpa_s->bssid;
2570 if (is_zero_ether_addr(bssid))
2571 bssid = wpa_s->pending_bssid;
2572 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2573 wpas_connection_failed(wpa_s, bssid);
2574 wpa_sm_notify_disassoc(wpa_s->wpa);
2575 if (locally_generated)
2576 wpa_s->disconnect_reason = -reason_code;
2578 wpa_s->disconnect_reason = reason_code;
2579 wpas_notify_disconnect_reason(wpa_s);
2580 if (wpa_supplicant_dynamic_keys(wpa_s)) {
2581 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
2582 wpa_clear_keys(wpa_s, wpa_s->bssid);
2584 last_ssid = wpa_s->current_ssid;
2585 wpa_supplicant_mark_disassoc(wpa_s);
2587 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
2588 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
2589 wpa_s->current_ssid = last_ssid;
2592 if (fast_reconnect &&
2593 !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
2594 !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
2595 !disallowed_ssid(wpa_s, fast_reconnect->ssid,
2596 fast_reconnect->ssid_len) &&
2597 !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) &&
2598 !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect->bssid)) {
2599 #ifndef CONFIG_NO_SCAN_PROCESSING
2600 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
2601 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
2602 fast_reconnect_ssid) < 0) {
2603 /* Recover through full scan */
2604 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2606 #endif /* CONFIG_NO_SCAN_PROCESSING */
2607 } else if (fast_reconnect) {
2609 * Could not reconnect to the same BSS due to network being
2610 * disabled. Use a new scan to match the alternative behavior
2611 * above, i.e., to continue automatic reconnection attempt in a
2612 * way that enforces disabled network rules.
2614 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2619 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2620 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
2622 struct wpa_supplicant *wpa_s = eloop_ctx;
2624 if (!wpa_s->pending_mic_error_report)
2627 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
2628 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
2629 wpa_s->pending_mic_error_report = 0;
2631 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2635 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
2636 union wpa_event_data *data)
2639 struct os_reltime t;
2641 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
2642 pairwise = (data && data->michael_mic_failure.unicast);
2644 if ((wpa_s->last_michael_mic_error.sec &&
2645 !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
2646 wpa_s->pending_mic_error_report) {
2647 if (wpa_s->pending_mic_error_report) {
2649 * Send the pending MIC error report immediately since
2650 * we are going to start countermeasures and AP better
2653 wpa_sm_key_request(wpa_s->wpa, 1,
2654 wpa_s->pending_mic_error_pairwise);
2657 /* Send the new MIC error report immediately since we are going
2658 * to start countermeasures and AP better do the same.
2660 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2662 /* initialize countermeasures */
2663 wpa_s->countermeasures = 1;
2665 wpa_blacklist_add(wpa_s, wpa_s->bssid);
2667 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
2670 * Need to wait for completion of request frame. We do not get
2671 * any callback for the message completion, so just wait a
2672 * short while and hope for the best. */
2675 wpa_drv_set_countermeasures(wpa_s, 1);
2676 wpa_supplicant_deauthenticate(wpa_s,
2677 WLAN_REASON_MICHAEL_MIC_FAILURE);
2678 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
2680 eloop_register_timeout(60, 0,
2681 wpa_supplicant_stop_countermeasures,
2683 /* TODO: mark the AP rejected for 60 second. STA is
2684 * allowed to associate with another AP.. */
2686 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2687 if (wpa_s->mic_errors_seen) {
2689 * Reduce the effectiveness of Michael MIC error
2690 * reports as a means for attacking against TKIP if
2691 * more than one MIC failure is noticed with the same
2692 * PTK. We delay the transmission of the reports by a
2693 * random time between 0 and 60 seconds in order to
2694 * force the attacker wait 60 seconds before getting
2695 * the information on whether a frame resulted in a MIC
2701 if (os_get_random(rval, sizeof(rval)) < 0)
2702 sec = os_random() % 60;
2704 sec = WPA_GET_BE32(rval) % 60;
2705 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
2706 "report %d seconds", sec);
2707 wpa_s->pending_mic_error_report = 1;
2708 wpa_s->pending_mic_error_pairwise = pairwise;
2709 eloop_cancel_timeout(
2710 wpa_supplicant_delayed_mic_error_report,
2712 eloop_register_timeout(
2713 sec, os_random() % 1000000,
2714 wpa_supplicant_delayed_mic_error_report,
2717 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2719 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2720 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2721 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2723 wpa_s->last_michael_mic_error = t;
2724 wpa_s->mic_errors_seen++;
2728 #ifdef CONFIG_TERMINATE_ONLASTIF
2729 static int any_interfaces(struct wpa_supplicant *head)
2731 struct wpa_supplicant *wpa_s;
2733 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
2734 if (!wpa_s->interface_removed)
2738 #endif /* CONFIG_TERMINATE_ONLASTIF */
2742 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
2743 union wpa_event_data *data)
2745 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
2748 switch (data->interface_status.ievent) {
2749 case EVENT_INTERFACE_ADDED:
2750 if (!wpa_s->interface_removed)
2752 wpa_s->interface_removed = 0;
2753 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
2754 if (wpa_supplicant_driver_init(wpa_s) < 0) {
2755 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
2756 "driver after interface was added");
2760 if (!wpa_s->global->p2p &&
2761 !wpa_s->global->p2p_disabled &&
2762 !wpa_s->conf->p2p_disabled &&
2764 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
2765 wpas_p2p_add_p2pdev_interface(
2766 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
2767 wpa_printf(MSG_INFO,
2768 "P2P: Failed to enable P2P Device interface");
2769 /* Try to continue without. P2P will be disabled. */
2771 #endif /* CONFIG_P2P */
2774 case EVENT_INTERFACE_REMOVED:
2775 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
2776 wpa_s->interface_removed = 1;
2777 wpa_supplicant_mark_disassoc(wpa_s);
2778 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2779 l2_packet_deinit(wpa_s->l2);
2783 if (wpa_s->global->p2p &&
2784 wpa_s->global->p2p_init_wpa_s->parent == wpa_s &&
2786 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) {
2787 wpa_dbg(wpa_s, MSG_DEBUG,
2788 "Removing P2P Device interface");
2789 wpa_supplicant_remove_iface(
2790 wpa_s->global, wpa_s->global->p2p_init_wpa_s,
2792 wpa_s->global->p2p_init_wpa_s = NULL;
2794 #endif /* CONFIG_P2P */
2796 #ifdef CONFIG_MATCH_IFACE
2797 if (wpa_s->matched) {
2798 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
2801 #endif /* CONFIG_MATCH_IFACE */
2803 #ifdef CONFIG_TERMINATE_ONLASTIF
2804 /* check if last interface */
2805 if (!any_interfaces(wpa_s->global->ifaces))
2807 #endif /* CONFIG_TERMINATE_ONLASTIF */
2813 #ifdef CONFIG_PEERKEY
2815 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2816 union wpa_event_data *data)
2820 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2822 #endif /* CONFIG_PEERKEY */
2826 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2827 union wpa_event_data *data)
2831 switch (data->tdls.oper) {
2832 case TDLS_REQUEST_SETUP:
2833 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
2834 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2835 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2837 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
2839 case TDLS_REQUEST_TEARDOWN:
2840 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2841 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
2842 data->tdls.reason_code);
2844 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
2847 case TDLS_REQUEST_DISCOVER:
2848 wpa_tdls_send_discovery_request(wpa_s->wpa,
2853 #endif /* CONFIG_TDLS */
2857 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
2858 union wpa_event_data *data)
2862 switch (data->wnm.oper) {
2863 case WNM_OPER_SLEEP:
2864 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
2865 "(action=%d, intval=%d)",
2866 data->wnm.sleep_action, data->wnm.sleep_intval);
2867 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
2868 data->wnm.sleep_intval, NULL);
2872 #endif /* CONFIG_WNM */
2875 #ifdef CONFIG_IEEE80211R
2877 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2878 union wpa_event_data *data)
2883 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2884 data->ft_ies.ies_len,
2885 data->ft_ies.ft_action,
2886 data->ft_ies.target_ap,
2887 data->ft_ies.ric_ies,
2888 data->ft_ies.ric_ies_len) < 0) {
2889 /* TODO: prevent MLME/driver from trying to associate? */
2892 #endif /* CONFIG_IEEE80211R */
2895 #ifdef CONFIG_IBSS_RSN
2896 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2897 union wpa_event_data *data)
2899 struct wpa_ssid *ssid;
2900 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2904 ssid = wpa_s->current_ssid;
2907 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2910 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2914 static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
2915 union wpa_event_data *data)
2917 struct wpa_ssid *ssid = wpa_s->current_ssid;
2922 /* check if the ssid is correctly configured as IBSS/RSN */
2923 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2926 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
2927 data->rx_mgmt.frame_len);
2929 #endif /* CONFIG_IBSS_RSN */
2932 #ifdef CONFIG_IEEE80211R
2933 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
2936 const u8 *sta_addr, *target_ap_addr;
2939 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
2940 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2941 return; /* only SME case supported for now */
2942 if (len < 1 + 2 * ETH_ALEN + 2)
2945 return; /* Only FT Action Response is supported for now */
2946 sta_addr = data + 1;
2947 target_ap_addr = data + 1 + ETH_ALEN;
2948 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
2949 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
2950 MACSTR " TargetAP " MACSTR " status %u",
2951 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
2953 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
2954 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
2955 " in FT Action Response", MAC2STR(sta_addr));
2960 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
2961 "failure (status code %d)", status);
2962 /* TODO: report error to FT code(?) */
2966 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
2967 len - (1 + 2 * ETH_ALEN + 2), 1,
2968 target_ap_addr, NULL, 0) < 0)
2973 struct wpa_bss *bss;
2974 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
2976 wpa_s->sme.freq = bss->freq;
2977 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
2978 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
2981 #endif /* CONFIG_SME */
2983 #endif /* CONFIG_IEEE80211R */
2986 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
2987 struct unprot_deauth *e)
2989 #ifdef CONFIG_IEEE80211W
2990 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
2991 "dropped: " MACSTR " -> " MACSTR
2992 " (reason code %u)",
2993 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2994 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2995 #endif /* CONFIG_IEEE80211W */
2999 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
3000 struct unprot_disassoc *e)
3002 #ifdef CONFIG_IEEE80211W
3003 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
3004 "dropped: " MACSTR " -> " MACSTR
3005 " (reason code %u)",
3006 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
3007 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
3008 #endif /* CONFIG_IEEE80211W */
3012 static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
3013 u16 reason_code, int locally_generated,
3014 const u8 *ie, size_t ie_len, int deauth)
3017 if (wpa_s->ap_iface && addr) {
3018 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
3022 if (wpa_s->ap_iface) {
3023 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
3026 #endif /* CONFIG_AP */
3028 if (!locally_generated)
3029 wpa_s->own_disconnect_req = 0;
3031 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
3033 if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
3034 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
3035 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
3036 eapol_sm_failed(wpa_s->eapol))) &&
3037 !wpa_s->eap_expected_failure))
3038 wpas_auth_failed(wpa_s, "AUTH_FAILED");
3041 if (deauth && reason_code > 0) {
3042 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
3043 locally_generated) > 0) {
3045 * The interface was removed, so cannot continue
3046 * processing any additional operations after this.
3051 #endif /* CONFIG_P2P */
3053 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
3058 static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
3059 struct disassoc_info *info)
3061 u16 reason_code = 0;
3062 int locally_generated = 0;
3063 const u8 *addr = NULL;
3064 const u8 *ie = NULL;
3067 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
3072 ie_len = info->ie_len;
3073 reason_code = info->reason_code;
3074 locally_generated = info->locally_generated;
3075 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code,
3076 locally_generated ? " (locally generated)" : "");
3078 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3080 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
3085 if (wpa_s->ap_iface && info && info->addr) {
3086 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
3090 if (wpa_s->ap_iface) {
3091 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
3094 #endif /* CONFIG_AP */
3098 wpas_p2p_disassoc_notif(
3099 wpa_s, info->addr, reason_code, info->ie, info->ie_len,
3102 #endif /* CONFIG_P2P */
3104 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3105 sme_event_disassoc(wpa_s, info);
3107 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
3112 static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
3113 struct deauth_info *info)
3115 u16 reason_code = 0;
3116 int locally_generated = 0;
3117 const u8 *addr = NULL;
3118 const u8 *ie = NULL;
3121 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
3126 ie_len = info->ie_len;
3127 reason_code = info->reason_code;
3128 locally_generated = info->locally_generated;
3129 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
3131 locally_generated ? " (locally generated)" : "");
3133 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3136 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
3140 wpa_reset_ft_completed(wpa_s->wpa);
3142 wpas_event_disconnect(wpa_s, addr, reason_code,
3143 locally_generated, ie, ie_len, 1);
3147 static const char * reg_init_str(enum reg_change_initiator init)
3150 case REGDOM_SET_BY_CORE:
3152 case REGDOM_SET_BY_USER:
3154 case REGDOM_SET_BY_DRIVER:
3156 case REGDOM_SET_BY_COUNTRY_IE:
3157 return "COUNTRY_IE";
3158 case REGDOM_BEACON_HINT:
3159 return "BEACON_HINT";
3165 static const char * reg_type_str(enum reg_type type)
3168 case REGDOM_TYPE_UNKNOWN:
3170 case REGDOM_TYPE_COUNTRY:
3172 case REGDOM_TYPE_WORLD:
3174 case REGDOM_TYPE_CUSTOM_WORLD:
3175 return "CUSTOM_WORLD";
3176 case REGDOM_TYPE_INTERSECTION:
3177 return "INTERSECTION";
3183 static void wpa_supplicant_update_channel_list(
3184 struct wpa_supplicant *wpa_s, struct channel_list_changed *info)
3186 struct wpa_supplicant *ifs;
3189 * To allow backwards compatibility with higher level layers that
3190 * assumed the REGDOM_CHANGE event is sent over the initially added
3191 * interface. Find the highest parent of this interface and use it to
3194 for (ifs = wpa_s; ifs->parent && ifs != ifs->parent; ifs = ifs->parent)
3197 wpa_msg(ifs, MSG_INFO, WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
3198 reg_init_str(info->initiator), reg_type_str(info->type),
3199 info->alpha2[0] ? " alpha2=" : "",
3200 info->alpha2[0] ? info->alpha2 : "");
3202 if (wpa_s->drv_priv == NULL)
3203 return; /* Ignore event during drv initialization */
3205 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
3207 wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
3209 free_hw_features(ifs);
3210 ifs->hw.modes = wpa_drv_get_hw_feature_data(
3211 ifs, &ifs->hw.num_modes, &ifs->hw.flags);
3214 /* Restart sched_scan with updated channel list */
3215 if (wpa_s->sched_scanning) {
3216 wpa_dbg(wpa_s, MSG_DEBUG,
3217 "Channel list changed restart sched scan.");
3218 wpa_supplicant_cancel_sched_scan(wpa_s);
3219 wpa_supplicant_req_scan(wpa_s, 0, 0);
3222 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER);
3226 static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
3227 const u8 *frame, size_t len, int freq,
3230 const struct ieee80211_mgmt *mgmt;
3235 if (len < IEEE80211_HDRLEN + 2)
3238 mgmt = (const struct ieee80211_mgmt *) frame;
3239 payload = frame + IEEE80211_HDRLEN;
3240 category = *payload++;
3241 plen = len - IEEE80211_HDRLEN - 1;
3243 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
3244 " Category=%u DataLen=%d freq=%d MHz",
3245 MAC2STR(mgmt->sa), category, (int) plen, freq);
3247 if (category == WLAN_ACTION_WMM) {
3248 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
3252 #ifdef CONFIG_IEEE80211R
3253 if (category == WLAN_ACTION_FT) {
3254 ft_rx_action(wpa_s, payload, plen);
3257 #endif /* CONFIG_IEEE80211R */
3259 #ifdef CONFIG_IEEE80211W
3261 if (category == WLAN_ACTION_SA_QUERY) {
3262 sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen);
3265 #endif /* CONFIG_SME */
3266 #endif /* CONFIG_IEEE80211W */
3269 if (mgmt->u.action.category == WLAN_ACTION_WNM) {
3270 ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
3273 #endif /* CONFIG_WNM */
3276 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
3277 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
3278 gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
3279 mgmt->u.action.category,
3280 payload, plen, freq) == 0)
3282 #endif /* CONFIG_GAS */
3285 if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
3286 payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
3287 wpa_dbg(wpa_s, MSG_DEBUG,
3288 "TDLS: Received Discovery Response from " MACSTR,
3292 #endif /* CONFIG_TDLS */
3294 #ifdef CONFIG_INTERWORKING
3295 if (category == WLAN_ACTION_QOS && plen >= 1 &&
3296 payload[0] == QOS_QOS_MAP_CONFIG) {
3297 const u8 *pos = payload + 1;
3298 size_t qlen = plen - 1;
3299 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
3300 MACSTR, MAC2STR(mgmt->sa));
3301 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
3302 qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
3303 pos[1] <= qlen - 2 && pos[1] >= 16)
3304 wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
3307 #endif /* CONFIG_INTERWORKING */
3309 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3310 payload[0] == WLAN_RRM_RADIO_MEASUREMENT_REQUEST) {
3311 wpas_rrm_handle_radio_measurement_request(wpa_s, mgmt->sa,
3317 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3318 payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
3319 wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
3323 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3324 payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
3325 wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
3326 payload + 1, plen - 1,
3332 if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) {
3333 fst_rx_action(wpa_s->fst, mgmt, len);
3336 #endif /* CONFIG_FST */
3338 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
3339 category, payload, plen, freq);
3341 mesh_mpm_action_rx(wpa_s, mgmt, len);
3345 static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
3346 union wpa_event_data *event)
3348 struct wpa_freq_range_list *list;
3351 list = &event->freq_range;
3354 str = freq_range_list_str(list);
3355 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
3359 if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
3360 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
3363 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
3366 * The update channel flow will also take care of moving a GO
3367 * from the unsafe frequency if needed.
3369 wpas_p2p_update_channel_list(wpa_s,
3370 WPAS_P2P_CHANNEL_UPDATE_AVOID);
3372 #endif /* CONFIG_P2P */
3378 static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
3379 union wpa_event_data *data)
3381 wpa_dbg(wpa_s, MSG_DEBUG,
3382 "Connection authorized by device, previous state %d",
3384 if (wpa_s->wpa_state == WPA_ASSOCIATED) {
3385 wpa_supplicant_cancel_auth_timeout(wpa_s);
3386 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3387 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
3388 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
3390 wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
3391 wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
3392 data->assoc_info.ptk_kck_len,
3393 data->assoc_info.ptk_kek,
3394 data->assoc_info.ptk_kek_len);
3398 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
3399 union wpa_event_data *data)
3401 struct wpa_supplicant *wpa_s = ctx;
3404 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
3405 event != EVENT_INTERFACE_ENABLED &&
3406 event != EVENT_INTERFACE_STATUS &&
3407 event != EVENT_SCAN_RESULTS &&
3408 event != EVENT_SCHED_SCAN_STOPPED) {
3409 wpa_dbg(wpa_s, MSG_DEBUG,
3410 "Ignore event %s (%d) while interface is disabled",
3411 event_to_string(event), event);
3415 #ifndef CONFIG_NO_STDOUT_DEBUG
3417 int level = MSG_DEBUG;
3419 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
3420 const struct ieee80211_hdr *hdr;
3422 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
3423 fc = le_to_host16(hdr->frame_control);
3424 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3425 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
3426 level = MSG_EXCESSIVE;
3429 wpa_dbg(wpa_s, level, "Event %s (%d) received",
3430 event_to_string(event), event);
3432 #endif /* CONFIG_NO_STDOUT_DEBUG */
3437 if (!wpas_fst_update_mbie(wpa_s, data->auth.ies,
3438 data->auth.ies_len))
3439 wpa_printf(MSG_DEBUG,
3440 "FST: MB IEs updated from auth IE");
3441 #endif /* CONFIG_FST */
3442 sme_event_auth(wpa_s, data);
3445 wpa_supplicant_event_assoc(wpa_s, data);
3446 if (data && data->assoc_info.authorized)
3447 wpa_supplicant_event_assoc_auth(wpa_s, data);
3449 wpa_msg(wpa_s, MSG_INFO,
3450 WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u",
3451 data->assoc_info.subnet_status);
3454 case EVENT_DISASSOC:
3455 wpas_event_disassoc(wpa_s,
3456 data ? &data->disassoc_info : NULL);
3459 wpas_event_deauth(wpa_s,
3460 data ? &data->deauth_info : NULL);
3462 case EVENT_MICHAEL_MIC_FAILURE:
3463 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
3465 #ifndef CONFIG_NO_SCAN_PROCESSING
3466 case EVENT_SCAN_STARTED:
3467 if (wpa_s->own_scan_requested ||
3468 (data && !data->scan_info.external_scan)) {
3469 struct os_reltime diff;
3471 os_get_reltime(&wpa_s->scan_start_time);
3472 os_reltime_sub(&wpa_s->scan_start_time,
3473 &wpa_s->scan_trigger_time, &diff);
3474 wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
3475 diff.sec, diff.usec);
3476 wpa_s->own_scan_requested = 0;
3477 wpa_s->own_scan_running = 1;
3478 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
3479 wpa_s->manual_scan_use_id) {
3480 wpa_msg_ctrl(wpa_s, MSG_INFO,
3481 WPA_EVENT_SCAN_STARTED "id=%u",
3482 wpa_s->manual_scan_id);
3484 wpa_msg_ctrl(wpa_s, MSG_INFO,
3485 WPA_EVENT_SCAN_STARTED);
3488 wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
3489 wpa_s->radio->external_scan_running = 1;
3490 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
3493 case EVENT_SCAN_RESULTS:
3494 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3495 wpa_s->scan_res_handler = NULL;
3496 wpa_s->own_scan_running = 0;
3497 wpa_s->radio->external_scan_running = 0;
3498 wpa_s->last_scan_req = NORMAL_SCAN_REQ;
3502 if (!(data && data->scan_info.external_scan) &&
3503 os_reltime_initialized(&wpa_s->scan_start_time)) {
3504 struct os_reltime now, diff;
3505 os_get_reltime(&now);
3506 os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
3507 wpa_s->scan_start_time.sec = 0;
3508 wpa_s->scan_start_time.usec = 0;
3509 wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
3510 diff.sec, diff.usec);
3512 if (wpa_supplicant_event_scan_results(wpa_s, data))
3513 break; /* interface may have been removed */
3514 if (!(data && data->scan_info.external_scan))
3515 wpa_s->own_scan_running = 0;
3516 if (data && data->scan_info.nl_scan_event)
3517 wpa_s->radio->external_scan_running = 0;
3518 radio_work_check_next(wpa_s);
3520 #endif /* CONFIG_NO_SCAN_PROCESSING */
3521 case EVENT_ASSOCINFO:
3522 wpa_supplicant_event_associnfo(wpa_s, data);
3524 case EVENT_INTERFACE_STATUS:
3525 wpa_supplicant_event_interface_status(wpa_s, data);
3527 case EVENT_PMKID_CANDIDATE:
3528 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
3530 #ifdef CONFIG_PEERKEY
3531 case EVENT_STKSTART:
3532 wpa_supplicant_event_stkstart(wpa_s, data);
3534 #endif /* CONFIG_PEERKEY */
3537 wpa_supplicant_event_tdls(wpa_s, data);
3539 #endif /* CONFIG_TDLS */
3542 wpa_supplicant_event_wnm(wpa_s, data);
3544 #endif /* CONFIG_WNM */
3545 #ifdef CONFIG_IEEE80211R
3546 case EVENT_FT_RESPONSE:
3547 wpa_supplicant_event_ft_response(wpa_s, data);
3549 #endif /* CONFIG_IEEE80211R */
3550 #ifdef CONFIG_IBSS_RSN
3551 case EVENT_IBSS_RSN_START:
3552 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
3554 #endif /* CONFIG_IBSS_RSN */
3555 case EVENT_ASSOC_REJECT:
3556 if (data->assoc_reject.bssid)
3557 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3558 "bssid=" MACSTR " status_code=%u%s",
3559 MAC2STR(data->assoc_reject.bssid),
3560 data->assoc_reject.status_code,
3561 data->assoc_reject.timed_out ? " timeout" : "");
3563 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3565 data->assoc_reject.status_code,
3566 data->assoc_reject.timed_out ? " timeout" : "");
3567 wpa_s->assoc_status_code = data->assoc_reject.status_code;
3568 wpas_notify_assoc_status_code(wpa_s);
3569 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3570 sme_event_assoc_reject(wpa_s, data);
3572 const u8 *bssid = data->assoc_reject.bssid;
3573 if (bssid == NULL || is_zero_ether_addr(bssid))
3574 bssid = wpa_s->pending_bssid;
3575 wpas_connection_failed(wpa_s, bssid);
3576 wpa_supplicant_mark_disassoc(wpa_s);
3579 case EVENT_AUTH_TIMED_OUT:
3580 /* It is possible to get this event from earlier connection */
3581 if (wpa_s->current_ssid &&
3582 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3583 wpa_dbg(wpa_s, MSG_DEBUG,
3584 "Ignore AUTH_TIMED_OUT in mesh configuration");
3587 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3588 sme_event_auth_timed_out(wpa_s, data);
3590 case EVENT_ASSOC_TIMED_OUT:
3591 /* It is possible to get this event from earlier connection */
3592 if (wpa_s->current_ssid &&
3593 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3594 wpa_dbg(wpa_s, MSG_DEBUG,
3595 "Ignore ASSOC_TIMED_OUT in mesh configuration");
3598 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3599 sme_event_assoc_timed_out(wpa_s, data);
3601 case EVENT_TX_STATUS:
3602 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
3603 " type=%d stype=%d",
3604 MAC2STR(data->tx_status.dst),
3605 data->tx_status.type, data->tx_status.stype);
3607 if (wpa_s->ap_iface == NULL) {
3608 #ifdef CONFIG_OFFCHANNEL
3609 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3610 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
3611 offchannel_send_action_tx_status(
3612 wpa_s, data->tx_status.dst,
3613 data->tx_status.data,
3614 data->tx_status.data_len,
3615 data->tx_status.ack ?
3616 OFFCHANNEL_SEND_ACTION_SUCCESS :
3617 OFFCHANNEL_SEND_ACTION_NO_ACK);
3618 #endif /* CONFIG_OFFCHANNEL */
3621 #endif /* CONFIG_AP */
3622 #ifdef CONFIG_OFFCHANNEL
3623 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
3624 MACSTR, MAC2STR(wpa_s->p2pdev->pending_action_dst));
3626 * Catch TX status events for Action frames we sent via group
3627 * interface in GO mode, or via standalone AP interface.
3628 * Note, wpa_s->p2pdev will be the same as wpa_s->parent,
3629 * except when the primary interface is used as a GO interface
3630 * (for drivers which do not have group interface concurrency)
3632 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3633 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
3634 os_memcmp(wpa_s->p2pdev->pending_action_dst,
3635 data->tx_status.dst, ETH_ALEN) == 0) {
3636 offchannel_send_action_tx_status(
3637 wpa_s->p2pdev, data->tx_status.dst,
3638 data->tx_status.data,
3639 data->tx_status.data_len,
3640 data->tx_status.ack ?
3641 OFFCHANNEL_SEND_ACTION_SUCCESS :
3642 OFFCHANNEL_SEND_ACTION_NO_ACK);
3645 #endif /* CONFIG_OFFCHANNEL */
3647 switch (data->tx_status.type) {
3648 case WLAN_FC_TYPE_MGMT:
3649 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
3650 data->tx_status.data_len,
3651 data->tx_status.stype,
3652 data->tx_status.ack);
3654 case WLAN_FC_TYPE_DATA:
3655 ap_tx_status(wpa_s, data->tx_status.dst,
3656 data->tx_status.data,
3657 data->tx_status.data_len,
3658 data->tx_status.ack);
3661 #endif /* CONFIG_AP */
3664 case EVENT_EAPOL_TX_STATUS:
3665 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
3666 data->eapol_tx_status.data,
3667 data->eapol_tx_status.data_len,
3668 data->eapol_tx_status.ack);
3670 case EVENT_DRIVER_CLIENT_POLL_OK:
3671 ap_client_poll_ok(wpa_s, data->client_poll.addr);
3673 case EVENT_RX_FROM_UNKNOWN:
3674 if (wpa_s->ap_iface == NULL)
3676 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
3677 data->rx_from_unknown.wds);
3679 case EVENT_CH_SWITCH:
3680 if (!data || !wpa_s->current_ssid)
3683 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CHANNEL_SWITCH
3684 "freq=%d ht_enabled=%d ch_offset=%d ch_width=%s cf1=%d cf2=%d",
3685 data->ch_switch.freq,
3686 data->ch_switch.ht_enabled,
3687 data->ch_switch.ch_offset,
3688 channel_width_to_string(data->ch_switch.ch_width),
3689 data->ch_switch.cf1,
3690 data->ch_switch.cf2);
3692 wpa_s->assoc_freq = data->ch_switch.freq;
3693 wpa_s->current_ssid->frequency = data->ch_switch.freq;
3695 if (wpa_s->current_ssid->mode == WPAS_MODE_AP ||
3696 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO ||
3697 wpa_s->current_ssid->mode ==
3698 WPAS_MODE_P2P_GROUP_FORMATION) {
3699 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
3700 data->ch_switch.ht_enabled,
3701 data->ch_switch.ch_offset,
3702 data->ch_switch.ch_width,
3703 data->ch_switch.cf1,
3704 data->ch_switch.cf2);
3707 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS);
3710 case EVENT_DFS_RADAR_DETECTED:
3712 wpas_event_dfs_radar_detected(wpa_s, &data->dfs_event);
3714 case EVENT_DFS_CAC_STARTED:
3716 wpas_event_dfs_cac_started(wpa_s, &data->dfs_event);
3718 case EVENT_DFS_CAC_FINISHED:
3720 wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event);
3722 case EVENT_DFS_CAC_ABORTED:
3724 wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event);
3726 case EVENT_DFS_NOP_FINISHED:
3728 wpas_event_dfs_cac_nop_finished(wpa_s,
3731 #endif /* NEED_AP_MLME */
3732 #endif /* CONFIG_AP */
3733 case EVENT_RX_MGMT: {
3735 const struct ieee80211_mgmt *mgmt;
3737 #ifdef CONFIG_TESTING_OPTIONS
3738 if (wpa_s->ext_mgmt_frame_handling) {
3739 struct rx_mgmt *rx = &data->rx_mgmt;
3740 size_t hex_len = 2 * rx->frame_len + 1;
3741 char *hex = os_malloc(hex_len);
3743 wpa_snprintf_hex(hex, hex_len,
3744 rx->frame, rx->frame_len);
3745 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
3746 rx->freq, rx->datarate, rx->ssi_signal,
3752 #endif /* CONFIG_TESTING_OPTIONS */
3754 mgmt = (const struct ieee80211_mgmt *)
3755 data->rx_mgmt.frame;
3756 fc = le_to_host16(mgmt->frame_control);
3757 stype = WLAN_FC_GET_STYPE(fc);
3760 if (wpa_s->ap_iface == NULL) {
3761 #endif /* CONFIG_AP */
3763 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3764 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
3765 const u8 *src = mgmt->sa;
3769 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
3770 ie_len = data->rx_mgmt.frame_len -
3772 wpas_p2p_probe_req_rx(
3773 wpa_s, src, mgmt->da,
3774 mgmt->bssid, ie, ie_len,
3776 data->rx_mgmt.ssi_signal);
3779 #endif /* CONFIG_P2P */
3780 #ifdef CONFIG_IBSS_RSN
3781 if (wpa_s->current_ssid &&
3782 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
3783 stype == WLAN_FC_STYPE_AUTH &&
3784 data->rx_mgmt.frame_len >= 30) {
3785 wpa_supplicant_event_ibss_auth(wpa_s, data);
3788 #endif /* CONFIG_IBSS_RSN */
3790 if (stype == WLAN_FC_STYPE_ACTION) {
3791 wpas_event_rx_mgmt_action(
3792 wpa_s, data->rx_mgmt.frame,
3793 data->rx_mgmt.frame_len,
3795 data->rx_mgmt.ssi_signal);
3800 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
3804 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
3805 "management frame in non-AP mode");
3810 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3811 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
3815 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
3816 ie_len = data->rx_mgmt.frame_len - IEEE80211_HDRLEN;
3818 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
3819 mgmt->bssid, ie, ie_len,
3820 data->rx_mgmt.ssi_signal);
3823 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
3824 #endif /* CONFIG_AP */
3827 case EVENT_RX_PROBE_REQ:
3828 if (data->rx_probe_req.sa == NULL ||
3829 data->rx_probe_req.ie == NULL)
3832 if (wpa_s->ap_iface) {
3833 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
3834 data->rx_probe_req.sa,
3835 data->rx_probe_req.da,
3836 data->rx_probe_req.bssid,
3837 data->rx_probe_req.ie,
3838 data->rx_probe_req.ie_len,
3839 data->rx_probe_req.ssi_signal);
3842 #endif /* CONFIG_AP */
3843 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
3844 data->rx_probe_req.da,
3845 data->rx_probe_req.bssid,
3846 data->rx_probe_req.ie,
3847 data->rx_probe_req.ie_len,
3849 data->rx_probe_req.ssi_signal);
3851 case EVENT_REMAIN_ON_CHANNEL:
3852 #ifdef CONFIG_OFFCHANNEL
3853 offchannel_remain_on_channel_cb(
3854 wpa_s, data->remain_on_channel.freq,
3855 data->remain_on_channel.duration);
3856 #endif /* CONFIG_OFFCHANNEL */
3857 wpas_p2p_remain_on_channel_cb(
3858 wpa_s, data->remain_on_channel.freq,
3859 data->remain_on_channel.duration);
3861 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
3862 #ifdef CONFIG_OFFCHANNEL
3863 offchannel_cancel_remain_on_channel_cb(
3864 wpa_s, data->remain_on_channel.freq);
3865 #endif /* CONFIG_OFFCHANNEL */
3866 wpas_p2p_cancel_remain_on_channel_cb(
3867 wpa_s, data->remain_on_channel.freq);
3869 case EVENT_EAPOL_RX:
3870 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
3871 data->eapol_rx.data,
3872 data->eapol_rx.data_len);
3874 case EVENT_SIGNAL_CHANGE:
3875 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
3876 "above=%d signal=%d noise=%d txrate=%d",
3877 data->signal_change.above_threshold,
3878 data->signal_change.current_signal,
3879 data->signal_change.current_noise,
3880 data->signal_change.current_txrate);
3881 wpa_bss_update_level(wpa_s->current_bss,
3882 data->signal_change.current_signal);
3883 bgscan_notify_signal_change(
3884 wpa_s, data->signal_change.above_threshold,
3885 data->signal_change.current_signal,
3886 data->signal_change.current_noise,
3887 data->signal_change.current_txrate);
3889 case EVENT_INTERFACE_ENABLED:
3890 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
3891 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3892 wpa_supplicant_update_mac_addr(wpa_s);
3893 if (wpa_s->p2p_mgmt) {
3894 wpa_supplicant_set_state(wpa_s,
3900 if (!wpa_s->ap_iface) {
3901 wpa_supplicant_set_state(wpa_s,
3903 wpa_s->scan_req = NORMAL_SCAN_REQ;
3904 wpa_supplicant_req_scan(wpa_s, 0, 0);
3906 wpa_supplicant_set_state(wpa_s,
3908 #else /* CONFIG_AP */
3909 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
3910 wpa_supplicant_req_scan(wpa_s, 0, 0);
3911 #endif /* CONFIG_AP */
3914 case EVENT_INTERFACE_DISABLED:
3915 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
3917 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
3918 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
3919 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
3921 * Mark interface disabled if this happens to end up not
3922 * being removed as a separate P2P group interface.
3924 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3926 * The interface was externally disabled. Remove
3927 * it assuming an external entity will start a
3928 * new session if needed.
3930 if (wpa_s->current_ssid &&
3931 wpa_s->current_ssid->p2p_group)
3932 wpas_p2p_interface_unavailable(wpa_s);
3934 wpas_p2p_disconnect(wpa_s);
3936 * wpa_s instance may have been freed, so must not use
3941 if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
3942 p2p_in_progress(wpa_s->global->p2p) > 1) {
3943 /* This radio work will be cancelled, so clear P2P
3946 p2p_stop_find(wpa_s->global->p2p);
3948 #endif /* CONFIG_P2P */
3950 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3952 * Indicate disconnection to keep ctrl_iface events
3955 wpa_supplicant_event_disassoc(
3956 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
3958 wpa_supplicant_mark_disassoc(wpa_s);
3959 radio_remove_works(wpa_s, NULL, 0);
3961 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3963 case EVENT_CHANNEL_LIST_CHANGED:
3964 wpa_supplicant_update_channel_list(
3965 wpa_s, &data->channel_list_changed);
3967 case EVENT_INTERFACE_UNAVAILABLE:
3968 wpas_p2p_interface_unavailable(wpa_s);
3970 case EVENT_BEST_CHANNEL:
3971 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
3973 data->best_chan.freq_24, data->best_chan.freq_5,
3974 data->best_chan.freq_overall);
3975 wpa_s->best_24_freq = data->best_chan.freq_24;
3976 wpa_s->best_5_freq = data->best_chan.freq_5;
3977 wpa_s->best_overall_freq = data->best_chan.freq_overall;
3978 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
3979 data->best_chan.freq_5,
3980 data->best_chan.freq_overall);
3982 case EVENT_UNPROT_DEAUTH:
3983 wpa_supplicant_event_unprot_deauth(wpa_s,
3984 &data->unprot_deauth);
3986 case EVENT_UNPROT_DISASSOC:
3987 wpa_supplicant_event_unprot_disassoc(wpa_s,
3988 &data->unprot_disassoc);
3990 case EVENT_STATION_LOW_ACK:
3992 if (wpa_s->ap_iface && data)
3993 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
3994 data->low_ack.addr);
3995 #endif /* CONFIG_AP */
3998 wpa_tdls_disable_unreachable_link(wpa_s->wpa,
3999 data->low_ack.addr);
4000 #endif /* CONFIG_TDLS */
4002 case EVENT_IBSS_PEER_LOST:
4003 #ifdef CONFIG_IBSS_RSN
4004 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
4005 #endif /* CONFIG_IBSS_RSN */
4007 case EVENT_DRIVER_GTK_REKEY:
4008 if (os_memcmp(data->driver_gtk_rekey.bssid,
4009 wpa_s->bssid, ETH_ALEN))
4013 wpa_sm_update_replay_ctr(wpa_s->wpa,
4014 data->driver_gtk_rekey.replay_ctr);
4016 case EVENT_SCHED_SCAN_STOPPED:
4017 wpa_s->sched_scanning = 0;
4018 resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s);
4019 wpa_supplicant_notify_scanning(wpa_s, 0);
4021 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
4025 * Start a new sched scan to continue searching for more SSIDs
4026 * either if timed out or PNO schedule scan is pending.
4028 if (wpa_s->sched_scan_timed_out) {
4029 wpa_supplicant_req_sched_scan(wpa_s);
4030 } else if (wpa_s->pno_sched_pending) {
4031 wpa_s->pno_sched_pending = 0;
4032 wpas_start_pno(wpa_s);
4033 } else if (resched) {
4034 wpa_supplicant_req_scan(wpa_s, 0, 0);
4038 case EVENT_WPS_BUTTON_PUSHED:
4040 wpas_wps_start_pbc(wpa_s, NULL, 0);
4041 #endif /* CONFIG_WPS */
4043 case EVENT_AVOID_FREQUENCIES:
4044 wpa_supplicant_notify_avoid_freq(wpa_s, data);
4046 case EVENT_CONNECT_FAILED_REASON:
4048 if (!wpa_s->ap_iface || !data)
4050 hostapd_event_connect_failed_reason(
4051 wpa_s->ap_iface->bss[0],
4052 data->connect_failed_reason.addr,
4053 data->connect_failed_reason.code);
4054 #endif /* CONFIG_AP */
4056 case EVENT_NEW_PEER_CANDIDATE:
4058 if (!wpa_s->ifmsh || !data)
4060 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
4061 data->mesh_peer.ies,
4062 data->mesh_peer.ie_len);
4063 #endif /* CONFIG_MESH */
4067 if (!wpa_s->ap_iface)
4069 hostapd_event_get_survey(wpa_s->ap_iface,
4070 &data->survey_results);
4071 #endif /* CONFIG_AP */
4073 case EVENT_ACS_CHANNEL_SELECTED:
4075 if (!wpa_s->ap_iface)
4077 hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0],
4078 &data->acs_selected_channels);
4079 #endif /* CONFIG_ACS */
4081 case EVENT_P2P_LO_STOP:
4083 wpa_s->p2p_lo_started = 0;
4084 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_LISTEN_OFFLOAD_STOP
4085 P2P_LISTEN_OFFLOAD_STOP_REASON "reason=%d",
4086 data->p2p_lo_stop.reason_code);
4087 #endif /* CONFIG_P2P */
4090 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
4096 void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event,
4097 union wpa_event_data *data)
4099 struct wpa_supplicant *wpa_s;
4101 if (event != EVENT_INTERFACE_STATUS)
4104 wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname);
4105 if (wpa_s && wpa_s->driver->get_ifindex) {
4106 unsigned int ifindex;
4108 ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv);
4109 if (ifindex != data->interface_status.ifindex) {
4110 wpa_dbg(wpa_s, MSG_DEBUG,
4111 "interface status ifindex %d mismatch (%d)",
4112 ifindex, data->interface_status.ifindex);
4116 #ifdef CONFIG_MATCH_IFACE
4117 else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) {
4118 struct wpa_interface *wpa_i;
4120 wpa_i = wpa_supplicant_match_iface(
4121 ctx, data->interface_status.ifname);
4124 wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL);
4129 #endif /* CONFIG_MATCH_IFACE */
4132 wpa_supplicant_event(wpa_s, event, data);