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 (!bss_is_ess(bss) && !bss_is_pbss(bss)) {
1018 wpa_dbg(wpa_s, MSG_DEBUG, " skip - neither ESS nor PBSS network");
1022 if (ssid->pbss != 2 && ssid->pbss != bss_is_pbss(bss)) {
1023 wpa_dbg(wpa_s, MSG_DEBUG, " skip - PBSS mismatch (ssid %d bss %d)",
1024 ssid->pbss, bss_is_pbss(bss));
1028 if (!freq_allowed(ssid->freq_list, bss->freq)) {
1029 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not "
1034 if (!rate_match(wpa_s, bss)) {
1035 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do "
1041 if (ssid->p2p_group &&
1042 !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
1043 !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
1044 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P IE seen");
1048 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
1049 struct wpabuf *p2p_ie;
1050 u8 dev_addr[ETH_ALEN];
1052 ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
1054 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P element");
1057 p2p_ie = wpa_bss_get_vendor_ie_multi(
1058 bss, P2P_IE_VENDOR_TYPE);
1059 if (p2p_ie == NULL) {
1060 wpa_dbg(wpa_s, MSG_DEBUG, " skip - could not fetch P2P element");
1064 if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0
1065 || os_memcmp(dev_addr, ssid->go_p2p_dev_addr,
1067 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no matching GO P2P Device Address in P2P element");
1068 wpabuf_free(p2p_ie);
1071 wpabuf_free(p2p_ie);
1075 * TODO: skip the AP if its P2P IE has Group Formation
1076 * bit set in the P2P Group Capability Bitmap and we
1077 * are not in Group Formation with that device.
1079 #endif /* CONFIG_P2P */
1081 if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time))
1083 struct os_reltime diff;
1085 os_reltime_sub(&wpa_s->scan_min_time,
1086 &bss->last_update, &diff);
1087 wpa_dbg(wpa_s, MSG_DEBUG,
1088 " skip - scan result not recent enough (%u.%06u seconds too old)",
1089 (unsigned int) diff.sec,
1090 (unsigned int) diff.usec);
1094 assoc_disallow = wpas_mbo_get_bss_attr(
1095 bss, MBO_ATTR_ID_ASSOC_DISALLOW);
1096 if (assoc_disallow && assoc_disallow[1] >= 1) {
1097 wpa_dbg(wpa_s, MSG_DEBUG,
1098 " skip - MBO association disallowed (reason %u)",
1103 if (wpa_is_bss_tmp_disallowed(wpa_s, bss->bssid)) {
1104 wpa_dbg(wpa_s, MSG_DEBUG,
1105 " skip - MBO retry delay has not passed yet");
1108 #endif /* CONFIG_MBO */
1110 /* Matching configuration found */
1114 /* No matching configuration found */
1119 static struct wpa_bss *
1120 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
1121 struct wpa_ssid *group,
1122 struct wpa_ssid **selected_ssid,
1123 int only_first_ssid)
1127 if (only_first_ssid)
1128 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
1131 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
1134 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
1135 struct wpa_bss *bss = wpa_s->last_scan_res[i];
1136 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
1138 if (!*selected_ssid)
1140 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
1142 MAC2STR(bss->bssid),
1143 wpa_ssid_txt(bss->ssid, bss->ssid_len));
1151 struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
1152 struct wpa_ssid **selected_ssid)
1154 struct wpa_bss *selected = NULL;
1156 struct wpa_ssid *next_ssid = NULL;
1157 struct wpa_ssid *ssid;
1159 if (wpa_s->last_scan_res == NULL ||
1160 wpa_s->last_scan_res_used == 0)
1161 return NULL; /* no scan results from last update */
1163 if (wpa_s->next_ssid) {
1164 /* check that next_ssid is still valid */
1165 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1166 if (ssid == wpa_s->next_ssid)
1170 wpa_s->next_ssid = NULL;
1173 while (selected == NULL) {
1174 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1175 if (next_ssid && next_ssid->priority ==
1176 wpa_s->conf->pssid[prio]->priority) {
1177 selected = wpa_supplicant_select_bss(
1178 wpa_s, next_ssid, selected_ssid, 1);
1182 selected = wpa_supplicant_select_bss(
1183 wpa_s, wpa_s->conf->pssid[prio],
1189 if (selected == NULL && wpa_s->blacklist &&
1190 !wpa_s->countermeasures) {
1191 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
1192 "blacklist and try again");
1193 wpa_blacklist_clear(wpa_s);
1194 wpa_s->blacklist_cleared++;
1195 } else if (selected == NULL)
1199 ssid = *selected_ssid;
1200 if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set &&
1201 !ssid->passphrase && !ssid->ext_psk) {
1202 const char *field_name, *txt = NULL;
1204 wpa_dbg(wpa_s, MSG_DEBUG,
1205 "PSK/passphrase not yet available for the selected network");
1207 wpas_notify_network_request(wpa_s, ssid,
1208 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL);
1210 field_name = wpa_supplicant_ctrl_req_to_string(
1211 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt);
1212 if (field_name == NULL)
1215 wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
1224 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
1225 int timeout_sec, int timeout_usec)
1227 if (!wpa_supplicant_enabled_networks(wpa_s)) {
1229 * No networks are enabled; short-circuit request so
1230 * we don't wait timeout seconds before transitioning
1231 * to INACTIVE state.
1233 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1234 "since there are no enabled networks");
1235 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1239 wpa_s->scan_for_connection = 1;
1240 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
1244 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
1245 struct wpa_bss *selected,
1246 struct wpa_ssid *ssid)
1248 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
1249 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
1250 "PBC session overlap");
1251 wpas_notify_wps_event_pbc_overlap(wpa_s);
1253 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
1254 wpa_s->p2p_in_provisioning) {
1255 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
1259 #endif /* CONFIG_P2P */
1262 wpas_wps_pbc_overlap(wpa_s);
1263 wpas_wps_cancel(wpa_s);
1264 #endif /* CONFIG_WPS */
1268 wpa_msg(wpa_s, MSG_DEBUG,
1269 "Considering connect request: reassociate: %d selected: "
1270 MACSTR " bssid: " MACSTR " pending: " MACSTR
1271 " wpa_state: %s ssid=%p current_ssid=%p",
1272 wpa_s->reassociate, MAC2STR(selected->bssid),
1273 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
1274 wpa_supplicant_state_txt(wpa_s->wpa_state),
1275 ssid, wpa_s->current_ssid);
1278 * Do not trigger new association unless the BSSID has changed or if
1279 * reassociation is requested. If we are in process of associating with
1280 * the selected BSSID, do not trigger new attempt.
1282 if (wpa_s->reassociate ||
1283 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
1284 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
1285 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
1286 (!is_zero_ether_addr(wpa_s->pending_bssid) &&
1287 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
1289 (is_zero_ether_addr(wpa_s->pending_bssid) &&
1290 ssid != wpa_s->current_ssid)))) {
1291 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
1292 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
1295 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
1296 MAC2STR(selected->bssid));
1297 wpa_supplicant_associate(wpa_s, selected, ssid);
1299 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
1300 "connect with the selected AP");
1307 static struct wpa_ssid *
1308 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
1311 struct wpa_ssid *ssid;
1313 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1314 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
1316 if (wpas_network_disabled(wpa_s, ssid))
1318 if (ssid->mode == IEEE80211_MODE_IBSS ||
1319 ssid->mode == IEEE80211_MODE_AP ||
1320 ssid->mode == IEEE80211_MODE_MESH)
1328 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
1329 * on BSS added and BSS changed events */
1330 static void wpa_supplicant_rsn_preauth_scan_results(
1331 struct wpa_supplicant *wpa_s)
1333 struct wpa_bss *bss;
1335 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
1338 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1339 const u8 *ssid, *rsn;
1341 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
1345 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1349 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
1355 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
1356 struct wpa_bss *selected,
1357 struct wpa_ssid *ssid)
1359 struct wpa_bss *current_bss = NULL;
1360 #ifndef CONFIG_NO_ROAMING
1363 #endif /* CONFIG_NO_ROAMING */
1365 if (wpa_s->reassociate)
1366 return 1; /* explicit request to reassociate */
1367 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1368 return 1; /* we are not associated; continue */
1369 if (wpa_s->current_ssid == NULL)
1370 return 1; /* unknown current SSID */
1371 if (wpa_s->current_ssid != ssid)
1372 return 1; /* different network block */
1374 if (wpas_driver_bss_selection(wpa_s))
1375 return 0; /* Driver-based roaming */
1377 if (wpa_s->current_ssid->ssid)
1378 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
1379 wpa_s->current_ssid->ssid,
1380 wpa_s->current_ssid->ssid_len);
1382 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
1385 return 1; /* current BSS not seen in scan results */
1387 if (current_bss == selected)
1390 if (selected->last_update_idx > current_bss->last_update_idx)
1391 return 1; /* current BSS not seen in the last scan */
1393 #ifndef CONFIG_NO_ROAMING
1394 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1395 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR
1396 " level=%d snr=%d est_throughput=%u",
1397 MAC2STR(current_bss->bssid), current_bss->level,
1398 current_bss->snr, current_bss->est_throughput);
1399 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR
1400 " level=%d snr=%d est_throughput=%u",
1401 MAC2STR(selected->bssid), selected->level,
1402 selected->snr, selected->est_throughput);
1404 if (wpa_s->current_ssid->bssid_set &&
1405 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1407 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1408 "has preferred BSSID");
1412 if (selected->est_throughput > current_bss->est_throughput + 5000) {
1413 wpa_dbg(wpa_s, MSG_DEBUG,
1414 "Allow reassociation - selected BSS has better estimated throughput");
1418 to_5ghz = selected->freq > 4000 && current_bss->freq < 4000;
1420 if (current_bss->level < 0 &&
1421 current_bss->level > selected->level + to_5ghz * 2) {
1422 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1428 if (current_bss->level < 0) {
1429 if (current_bss->level < -85)
1431 else if (current_bss->level < -80)
1433 else if (current_bss->level < -75)
1435 else if (current_bss->level < -70)
1441 /* Make it easier to move to 5 GHz band */
1447 if (abs(current_bss->level - selected->level) < min_diff) {
1448 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
1454 #else /* CONFIG_NO_ROAMING */
1456 #endif /* CONFIG_NO_ROAMING */
1460 /* Return != 0 if no scan results could be fetched or if scan results should not
1461 * be shared with other virtual interfaces. */
1462 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1463 union wpa_event_data *data,
1466 struct wpa_scan_results *scan_res = NULL;
1469 #ifndef CONFIG_NO_RANDOM_POOL
1471 #endif /* CONFIG_NO_RANDOM_POOL */
1474 if (wpa_s->ap_iface)
1476 #endif /* CONFIG_AP */
1478 wpa_supplicant_notify_scanning(wpa_s, 0);
1480 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1481 data ? &data->scan_info :
1483 if (scan_res == NULL) {
1484 if (wpa_s->conf->ap_scan == 2 || ap ||
1485 wpa_s->scan_res_handler == scan_only_handler)
1489 if (data && data->scan_info.external_scan)
1491 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1493 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1495 goto scan_work_done;
1498 #ifndef CONFIG_NO_RANDOM_POOL
1499 num = scan_res->num;
1502 for (i = 0; i < num; i++) {
1504 struct wpa_scan_res *res = scan_res->res[i];
1505 buf[0] = res->bssid[5];
1506 buf[1] = res->qual & 0xff;
1507 buf[2] = res->noise & 0xff;
1508 buf[3] = res->level & 0xff;
1509 buf[4] = res->tsf & 0xff;
1510 random_add_randomness(buf, sizeof(buf));
1512 #endif /* CONFIG_NO_RANDOM_POOL */
1514 if (own_request && wpa_s->scan_res_handler &&
1515 !(data && data->scan_info.external_scan)) {
1516 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1517 struct wpa_scan_results *scan_res);
1519 scan_res_handler = wpa_s->scan_res_handler;
1520 wpa_s->scan_res_handler = NULL;
1521 scan_res_handler(wpa_s, scan_res);
1523 goto scan_work_done;
1527 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
1529 if (wpa_s->ap_iface->scan_cb)
1530 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1531 #endif /* CONFIG_AP */
1532 goto scan_work_done;
1535 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
1536 wpa_s->own_scan_running,
1537 data ? data->scan_info.external_scan : 0);
1538 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
1539 wpa_s->manual_scan_use_id && wpa_s->own_scan_running &&
1540 own_request && !(data && data->scan_info.external_scan)) {
1541 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
1542 wpa_s->manual_scan_id);
1543 wpa_s->manual_scan_use_id = 0;
1545 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1547 wpas_notify_scan_results(wpa_s);
1549 wpas_notify_scan_done(wpa_s, 1);
1551 if (data && data->scan_info.external_scan) {
1552 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
1553 wpa_scan_results_free(scan_res);
1557 if (wnm_scan_process(wpa_s, 1) > 0)
1558 goto scan_work_done;
1560 if (sme_proc_obss_scan(wpa_s) > 0)
1561 goto scan_work_done;
1563 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
1564 goto scan_work_done;
1566 if (autoscan_notify_scan(wpa_s, scan_res))
1567 goto scan_work_done;
1569 if (wpa_s->disconnected) {
1570 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1571 goto scan_work_done;
1574 if (!wpas_driver_bss_selection(wpa_s) &&
1575 bgscan_notify_scan(wpa_s, scan_res) == 1)
1576 goto scan_work_done;
1578 wpas_wps_update_ap_info(wpa_s, scan_res);
1580 if (wpa_s->wpa_state >= WPA_AUTHENTICATING &&
1581 wpa_s->wpa_state < WPA_COMPLETED)
1582 goto scan_work_done;
1584 wpa_scan_results_free(scan_res);
1586 if (own_request && wpa_s->scan_work) {
1587 struct wpa_radio_work *work = wpa_s->scan_work;
1588 wpa_s->scan_work = NULL;
1589 radio_work_done(work);
1592 return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
1595 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);
1605 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
1606 int new_scan, int own_request)
1608 struct wpa_bss *selected;
1609 struct wpa_ssid *ssid = NULL;
1610 int time_to_reenable = wpas_reenabled_network_time(wpa_s);
1612 if (time_to_reenable > 0) {
1613 wpa_dbg(wpa_s, MSG_DEBUG,
1614 "Postpone network selection by %d seconds since all networks are disabled",
1616 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
1617 eloop_register_timeout(time_to_reenable, 0,
1618 wpas_network_reenabled, wpa_s, NULL);
1622 if (wpa_s->p2p_mgmt)
1623 return 0; /* no normal connection on p2p_mgmt interface */
1625 selected = wpa_supplicant_pick_network(wpa_s, &ssid);
1629 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
1632 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1636 if (ssid != wpa_s->current_ssid &&
1637 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1638 wpa_s->own_disconnect_req = 1;
1639 wpa_supplicant_deauthenticate(
1640 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1643 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1644 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1648 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1650 * Do not notify other virtual radios of scan results since we do not
1651 * want them to start other associations at the same time.
1657 wpa_msg(wpa_s, MSG_INFO,
1658 "Avoiding join because we already joined a mesh group");
1661 #endif /* CONFIG_MESH */
1662 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
1663 ssid = wpa_supplicant_pick_new_network(wpa_s);
1665 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
1666 wpa_supplicant_associate(wpa_s, NULL, ssid);
1668 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1669 } else if (own_request) {
1671 * No SSID found. If SCAN results are as a result of
1672 * own scan request and not due to a scan request on
1673 * another shared interface, try another scan.
1675 int timeout_sec = wpa_s->scan_interval;
1676 int timeout_usec = 0;
1680 res = wpas_p2p_scan_no_go_seen(wpa_s);
1686 if (wpa_s->p2p_in_provisioning ||
1687 wpa_s->show_group_started ||
1688 wpa_s->p2p_in_invitation) {
1690 * Use shorter wait during P2P Provisioning
1691 * state and during P2P join-a-group operation
1692 * to speed up group formation.
1695 timeout_usec = 250000;
1696 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1700 #endif /* CONFIG_P2P */
1701 #ifdef CONFIG_INTERWORKING
1702 if (wpa_s->conf->auto_interworking &&
1703 wpa_s->conf->interworking &&
1704 wpa_s->conf->cred) {
1705 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
1706 "start ANQP fetch since no matching "
1708 wpa_s->network_select = 1;
1709 wpa_s->auto_network_select = 1;
1710 interworking_start_fetch_anqp(wpa_s);
1713 #endif /* CONFIG_INTERWORKING */
1715 if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
1716 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
1718 timeout_usec = 500000;
1719 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1723 #endif /* CONFIG_WPS */
1724 if (wpa_supplicant_req_sched_scan(wpa_s))
1725 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1728 wpa_msg_ctrl(wpa_s, MSG_INFO,
1729 WPA_EVENT_NETWORK_NOT_FOUND);
1736 static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1737 union wpa_event_data *data)
1739 struct wpa_supplicant *ifs;
1742 res = _wpa_supplicant_event_scan_results(wpa_s, data, 1);
1745 * Interface may have been removed, so must not dereference
1752 * If no scan results could be fetched, then no need to
1753 * notify those interfaces that did not actually request
1754 * this scan. Similarly, if scan results started a new operation on this
1755 * interface, do not notify other interfaces to avoid concurrent
1756 * operations during a connection attempt.
1762 * Check other interfaces to see if they share the same radio. If
1763 * so, they get updated with this same scan info.
1765 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
1768 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1769 "sibling", ifs->ifname);
1770 _wpa_supplicant_event_scan_results(ifs, data, 0);
1777 #endif /* CONFIG_NO_SCAN_PROCESSING */
1780 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
1782 #ifdef CONFIG_NO_SCAN_PROCESSING
1784 #else /* CONFIG_NO_SCAN_PROCESSING */
1785 struct os_reltime now;
1787 if (wpa_s->last_scan_res_used == 0)
1790 os_get_reltime(&now);
1791 if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) {
1792 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
1796 return wpas_select_network_from_last_scan(wpa_s, 0, 1);
1797 #endif /* CONFIG_NO_SCAN_PROCESSING */
1802 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
1804 struct wpa_supplicant *wpa_s = eloop_ctx;
1806 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1809 if (!wpa_s->no_keep_alive) {
1810 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1811 MAC2STR(wpa_s->bssid));
1812 /* TODO: could skip this if normal data traffic has been sent */
1813 /* TODO: Consider using some more appropriate data frame for
1816 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
1821 if (wpa_s->sme.bss_max_idle_period) {
1823 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1826 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1827 wnm_bss_keep_alive, wpa_s, NULL);
1829 #endif /* CONFIG_SME */
1833 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1834 const u8 *ies, size_t ies_len)
1836 struct ieee802_11_elems elems;
1841 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1845 if (elems.bss_max_idle_period) {
1847 wpa_s->sme.bss_max_idle_period =
1848 WPA_GET_LE16(elems.bss_max_idle_period);
1849 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1850 "TU)%s", wpa_s->sme.bss_max_idle_period,
1851 (elems.bss_max_idle_period[2] & 0x01) ?
1852 " (protected keep-live required)" : "");
1853 if (wpa_s->sme.bss_max_idle_period == 0)
1854 wpa_s->sme.bss_max_idle_period = 1;
1855 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1856 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1857 /* msec times 1000 */
1858 msec = wpa_s->sme.bss_max_idle_period * 1024;
1861 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1862 wnm_bss_keep_alive, wpa_s,
1866 #endif /* CONFIG_SME */
1869 #endif /* CONFIG_WNM */
1872 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1875 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1876 #endif /* CONFIG_WNM */
1880 #ifdef CONFIG_INTERWORKING
1882 static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
1887 wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
1888 res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
1890 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
1897 static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
1898 const u8 *ies, size_t ies_len)
1900 struct ieee802_11_elems elems;
1905 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1908 if (elems.qos_map_set) {
1909 wpas_qos_map_set(wpa_s, elems.qos_map_set,
1910 elems.qos_map_set_len);
1914 #endif /* CONFIG_INTERWORKING */
1918 static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s,
1919 const u8 *ie, size_t ie_len)
1921 struct mb_ies_info mb_ies;
1923 if (!ie || !ie_len || !wpa_s->fst)
1926 os_memset(&mb_ies, 0, sizeof(mb_ies));
1928 while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) {
1933 wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found",
1938 if (ie[0] == WLAN_EID_MULTI_BAND) {
1939 wpa_printf(MSG_DEBUG, "MB IE of %u bytes found",
1940 (unsigned int) len);
1941 mb_ies.ies[mb_ies.nof_ies].ie = ie + 2;
1942 mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2;
1950 if (mb_ies.nof_ies > 0) {
1951 wpabuf_free(wpa_s->received_mb_ies);
1952 wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies);
1958 #endif /* CONFIG_FST */
1961 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1962 union wpa_event_data *data)
1964 int l, len, found = 0, wpa_found, rsn_found;
1966 #ifdef CONFIG_IEEE80211R
1968 #endif /* CONFIG_IEEE80211R */
1970 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
1971 if (data->assoc_info.req_ies)
1972 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1973 data->assoc_info.req_ies_len);
1974 if (data->assoc_info.resp_ies) {
1975 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1976 data->assoc_info.resp_ies_len);
1978 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1979 data->assoc_info.resp_ies_len);
1980 #endif /* CONFIG_TDLS */
1982 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1983 data->assoc_info.resp_ies_len);
1984 #endif /* CONFIG_WNM */
1985 #ifdef CONFIG_INTERWORKING
1986 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1987 data->assoc_info.resp_ies_len);
1988 #endif /* CONFIG_INTERWORKING */
1990 if (data->assoc_info.beacon_ies)
1991 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1992 data->assoc_info.beacon_ies,
1993 data->assoc_info.beacon_ies_len);
1994 if (data->assoc_info.freq)
1995 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1996 data->assoc_info.freq);
1998 p = data->assoc_info.req_ies;
1999 l = data->assoc_info.req_ies_len;
2001 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
2002 while (p && l >= 2) {
2005 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2009 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2010 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
2011 (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 &&
2012 (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) ||
2013 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
2014 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
2017 wpa_find_assoc_pmkid(wpa_s);
2023 if (!found && data->assoc_info.req_ies)
2024 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
2026 #ifdef CONFIG_IEEE80211R
2028 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
2029 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2030 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2031 data->assoc_info.resp_ies,
2032 data->assoc_info.resp_ies_len,
2034 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2035 "Reassociation Response failed");
2036 wpa_supplicant_deauthenticate(
2037 wpa_s, WLAN_REASON_INVALID_IE);
2042 p = data->assoc_info.resp_ies;
2043 l = data->assoc_info.resp_ies_len;
2045 #ifdef CONFIG_WPS_STRICT
2046 if (p && wpa_s->current_ssid &&
2047 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
2049 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
2051 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
2052 "include WPS IE in (Re)Association Response");
2056 if (wps_validate_assoc_resp(wps) < 0) {
2058 wpa_supplicant_deauthenticate(
2059 wpa_s, WLAN_REASON_INVALID_IE);
2064 #endif /* CONFIG_WPS_STRICT */
2066 /* Go through the IEs and make a copy of the MDIE, if present. */
2067 while (p && l >= 2) {
2070 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2074 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
2075 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
2076 wpa_s->sme.ft_used = 1;
2077 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
2078 MOBILITY_DOMAIN_ID_LEN);
2084 #endif /* CONFIG_SME */
2086 /* Process FT when SME is in the driver */
2087 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
2088 wpa_ft_is_completed(wpa_s->wpa)) {
2089 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2090 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2091 data->assoc_info.resp_ies,
2092 data->assoc_info.resp_ies_len,
2094 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2095 "Reassociation Response failed");
2096 wpa_supplicant_deauthenticate(
2097 wpa_s, WLAN_REASON_INVALID_IE);
2100 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
2103 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
2104 data->assoc_info.resp_ies_len);
2105 #endif /* CONFIG_IEEE80211R */
2107 /* WPA/RSN IE from Beacon/ProbeResp */
2108 p = data->assoc_info.beacon_ies;
2109 l = data->assoc_info.beacon_ies_len;
2111 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
2113 wpa_found = rsn_found = 0;
2114 while (p && l >= 2) {
2117 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
2122 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2123 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
2125 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
2129 p[0] == WLAN_EID_RSN && p[1] >= 2) {
2131 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
2138 if (!wpa_found && data->assoc_info.beacon_ies)
2139 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
2140 if (!rsn_found && data->assoc_info.beacon_ies)
2141 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
2142 if (wpa_found || rsn_found)
2143 wpa_s->ap_ies_from_associnfo = 1;
2145 if (wpa_s->assoc_freq && data->assoc_info.freq &&
2146 wpa_s->assoc_freq != data->assoc_info.freq) {
2147 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
2149 wpa_s->assoc_freq, data->assoc_info.freq);
2150 wpa_supplicant_update_scan_results(wpa_s);
2153 wpa_s->assoc_freq = data->assoc_info.freq;
2159 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
2161 const u8 *bss_wpa = NULL, *bss_rsn = NULL;
2163 if (!wpa_s->current_bss || !wpa_s->current_ssid)
2166 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
2169 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
2170 WPA_IE_VENDOR_TYPE);
2171 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
2173 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
2174 bss_wpa ? 2 + bss_wpa[1] : 0) ||
2175 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
2176 bss_rsn ? 2 + bss_rsn[1] : 0))
2183 static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s,
2184 union wpa_event_data *data)
2187 struct assoc_info *ai = data ? &data->assoc_info : NULL;
2188 struct wpa_bss *bss = wpa_s->current_bss;
2189 const u8 *ieprb, *iebcn;
2191 wpabuf_free(wpa_s->received_mb_ies);
2192 wpa_s->received_mb_ies = NULL;
2195 !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) {
2196 wpa_printf(MSG_DEBUG,
2197 "FST: MB IEs updated from Association Response frame");
2202 !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) {
2203 wpa_printf(MSG_DEBUG,
2204 "FST: MB IEs updated from association event Beacon IEs");
2211 ieprb = (const u8 *) (bss + 1);
2212 iebcn = ieprb + bss->ie_len;
2214 if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len))
2215 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE");
2216 else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len))
2217 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE");
2218 #endif /* CONFIG_FST */
2222 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
2223 union wpa_event_data *data)
2230 if (wpa_s->ap_iface) {
2233 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
2234 data->assoc_info.addr,
2235 data->assoc_info.req_ies,
2236 data->assoc_info.req_ies_len,
2237 data->assoc_info.reassoc);
2240 #endif /* CONFIG_AP */
2242 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
2244 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
2245 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
2248 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
2249 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
2250 wpa_supplicant_deauthenticate(
2251 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2255 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
2256 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
2257 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
2258 MACSTR, MAC2STR(bssid));
2260 random_add_randomness(bssid, ETH_ALEN);
2261 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
2262 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
2263 wpas_notify_bssid_changed(wpa_s);
2265 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
2266 wpa_clear_keys(wpa_s, bssid);
2268 if (wpa_supplicant_select_config(wpa_s) < 0) {
2269 wpa_supplicant_deauthenticate(
2270 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2275 if (wpa_s->conf->ap_scan == 1 &&
2276 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
2277 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss)
2278 wpa_msg(wpa_s, MSG_WARNING,
2279 "WPA/RSN IEs not updated");
2282 wpas_fst_update_mb_assoc(wpa_s, data);
2285 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
2286 wpa_s->sme.prev_bssid_set = 1;
2287 wpa_s->sme.last_unprot_disconnect.sec = 0;
2288 #endif /* CONFIG_SME */
2290 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
2291 if (wpa_s->current_ssid) {
2292 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
2293 * initialized before association, but for other modes,
2294 * initialize PC/SC here, if the current configuration needs
2295 * smartcard or SIM/USIM. */
2296 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
2298 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
2300 l2_packet_notify_auth_start(wpa_s->l2);
2303 * Set portEnabled first to FALSE in order to get EAP state machine out
2304 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
2305 * state machine may transit to AUTHENTICATING state based on obsolete
2306 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
2307 * AUTHENTICATED without ever giving chance to EAP state machine to
2310 if (!ft_completed) {
2311 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
2312 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
2314 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
2315 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
2316 /* 802.1X::portControl = Auto */
2317 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
2318 wpa_s->eapol_received = 0;
2319 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2320 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
2321 (wpa_s->current_ssid &&
2322 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
2323 if (wpa_s->current_ssid &&
2324 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
2326 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2328 * Set the key after having received joined-IBSS event
2331 wpa_supplicant_set_wpa_none_key(wpa_s,
2332 wpa_s->current_ssid);
2334 wpa_supplicant_cancel_auth_timeout(wpa_s);
2335 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2336 } else if (!ft_completed) {
2337 /* Timeout for receiving the first EAPOL packet */
2338 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
2340 wpa_supplicant_cancel_scan(wpa_s);
2342 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2343 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
2345 * We are done; the driver will take care of RSN 4-way
2348 wpa_supplicant_cancel_auth_timeout(wpa_s);
2349 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2350 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2351 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2352 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2353 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
2355 * The driver will take care of RSN 4-way handshake, so we need
2356 * to allow EAPOL supplicant to complete its work without
2357 * waiting for WPA supplicant.
2359 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2360 } else if (ft_completed) {
2362 * FT protocol completed - make sure EAPOL state machine ends
2363 * up in authenticated.
2365 wpa_supplicant_cancel_auth_timeout(wpa_s);
2366 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2367 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2368 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2371 wpa_s->last_eapol_matches_bssid = 0;
2373 if (wpa_s->pending_eapol_rx) {
2374 struct os_reltime now, age;
2375 os_get_reltime(&now);
2376 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
2377 if (age.sec == 0 && age.usec < 100000 &&
2378 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
2380 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
2381 "frame that was received just before "
2382 "association notification");
2383 wpa_supplicant_rx_eapol(
2384 wpa_s, wpa_s->pending_eapol_rx_src,
2385 wpabuf_head(wpa_s->pending_eapol_rx),
2386 wpabuf_len(wpa_s->pending_eapol_rx));
2388 wpabuf_free(wpa_s->pending_eapol_rx);
2389 wpa_s->pending_eapol_rx = NULL;
2392 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2393 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
2394 wpa_s->current_ssid &&
2395 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2396 /* Set static WEP keys again */
2397 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
2400 #ifdef CONFIG_IBSS_RSN
2401 if (wpa_s->current_ssid &&
2402 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
2403 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
2404 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
2405 wpa_s->ibss_rsn == NULL) {
2406 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
2407 if (!wpa_s->ibss_rsn) {
2408 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
2409 wpa_supplicant_deauthenticate(
2410 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2414 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
2416 #endif /* CONFIG_IBSS_RSN */
2418 wpas_wps_notify_assoc(wpa_s, bssid);
2421 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
2422 data->assoc_info.resp_ies_len,
2423 &data->assoc_info.wmm_params);
2425 if (wpa_s->reassoc_same_bss)
2426 wmm_ac_restore_tspecs(wpa_s);
2431 static int disconnect_reason_recoverable(u16 reason_code)
2433 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
2434 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
2435 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
2439 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
2441 int locally_generated)
2445 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2447 * At least Host AP driver and a Prism3 card seemed to be
2448 * generating streams of disconnected events when configuring
2449 * IBSS for WPA-None. Ignore them for now.
2454 bssid = wpa_s->bssid;
2455 if (is_zero_ether_addr(bssid))
2456 bssid = wpa_s->pending_bssid;
2458 if (!is_zero_ether_addr(bssid) ||
2459 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2460 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
2462 MAC2STR(bssid), reason_code,
2463 locally_generated ? " locally_generated=1" : "");
2468 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
2469 int locally_generated)
2471 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
2472 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
2473 return 0; /* Not in 4-way handshake with PSK */
2476 * It looks like connection was lost while trying to go through PSK
2477 * 4-way handshake. Filter out known disconnection cases that are caused
2478 * by something else than PSK mismatch to avoid confusing reports.
2481 if (locally_generated) {
2482 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
2490 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
2492 int locally_generated)
2496 u8 prev_pending_bssid[ETH_ALEN];
2497 struct wpa_bss *fast_reconnect = NULL;
2498 struct wpa_ssid *fast_reconnect_ssid = NULL;
2499 struct wpa_ssid *last_ssid;
2501 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
2502 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
2504 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2506 * At least Host AP driver and a Prism3 card seemed to be
2507 * generating streams of disconnected events when configuring
2508 * IBSS for WPA-None. Ignore them for now.
2510 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
2511 "IBSS/WPA-None mode");
2515 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
2516 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
2517 "pre-shared key may be incorrect");
2518 if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
2519 return; /* P2P group removed */
2520 wpas_auth_failed(wpa_s, "WRONG_KEY");
2522 if (!wpa_s->disconnected &&
2523 (!wpa_s->auto_reconnect_disabled ||
2524 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
2525 wpas_wps_searching(wpa_s) ||
2526 wpas_wps_reenable_networks_pending(wpa_s))) {
2527 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
2528 "reconnect (wps=%d/%d wpa_state=%d)",
2529 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
2530 wpas_wps_searching(wpa_s),
2532 if (wpa_s->wpa_state == WPA_COMPLETED &&
2533 wpa_s->current_ssid &&
2534 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
2535 !locally_generated &&
2536 disconnect_reason_recoverable(reason_code)) {
2538 * It looks like the AP has dropped association with
2539 * us, but could allow us to get back in. Try to
2540 * reconnect to the same BSS without full scan to save
2541 * time for some common cases.
2543 fast_reconnect = wpa_s->current_bss;
2544 fast_reconnect_ssid = wpa_s->current_ssid;
2545 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
2546 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2548 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
2551 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
2552 "try to re-connect");
2553 wpa_s->reassociate = 0;
2554 wpa_s->disconnected = 1;
2556 wpa_supplicant_cancel_sched_scan(wpa_s);
2558 bssid = wpa_s->bssid;
2559 if (is_zero_ether_addr(bssid))
2560 bssid = wpa_s->pending_bssid;
2561 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2562 wpas_connection_failed(wpa_s, bssid);
2563 wpa_sm_notify_disassoc(wpa_s->wpa);
2564 if (locally_generated)
2565 wpa_s->disconnect_reason = -reason_code;
2567 wpa_s->disconnect_reason = reason_code;
2568 wpas_notify_disconnect_reason(wpa_s);
2569 if (wpa_supplicant_dynamic_keys(wpa_s)) {
2570 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
2571 wpa_clear_keys(wpa_s, wpa_s->bssid);
2573 last_ssid = wpa_s->current_ssid;
2574 wpa_supplicant_mark_disassoc(wpa_s);
2576 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
2577 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
2578 wpa_s->current_ssid = last_ssid;
2581 if (fast_reconnect &&
2582 !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
2583 !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
2584 !disallowed_ssid(wpa_s, fast_reconnect->ssid,
2585 fast_reconnect->ssid_len) &&
2586 !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) &&
2587 !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect->bssid)) {
2588 #ifndef CONFIG_NO_SCAN_PROCESSING
2589 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
2590 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
2591 fast_reconnect_ssid) < 0) {
2592 /* Recover through full scan */
2593 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2595 #endif /* CONFIG_NO_SCAN_PROCESSING */
2596 } else if (fast_reconnect) {
2598 * Could not reconnect to the same BSS due to network being
2599 * disabled. Use a new scan to match the alternative behavior
2600 * above, i.e., to continue automatic reconnection attempt in a
2601 * way that enforces disabled network rules.
2603 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2608 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2609 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
2611 struct wpa_supplicant *wpa_s = eloop_ctx;
2613 if (!wpa_s->pending_mic_error_report)
2616 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
2617 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
2618 wpa_s->pending_mic_error_report = 0;
2620 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2624 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
2625 union wpa_event_data *data)
2628 struct os_reltime t;
2630 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
2631 pairwise = (data && data->michael_mic_failure.unicast);
2633 if ((wpa_s->last_michael_mic_error.sec &&
2634 !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
2635 wpa_s->pending_mic_error_report) {
2636 if (wpa_s->pending_mic_error_report) {
2638 * Send the pending MIC error report immediately since
2639 * we are going to start countermeasures and AP better
2642 wpa_sm_key_request(wpa_s->wpa, 1,
2643 wpa_s->pending_mic_error_pairwise);
2646 /* Send the new MIC error report immediately since we are going
2647 * to start countermeasures and AP better do the same.
2649 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2651 /* initialize countermeasures */
2652 wpa_s->countermeasures = 1;
2654 wpa_blacklist_add(wpa_s, wpa_s->bssid);
2656 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
2659 * Need to wait for completion of request frame. We do not get
2660 * any callback for the message completion, so just wait a
2661 * short while and hope for the best. */
2664 wpa_drv_set_countermeasures(wpa_s, 1);
2665 wpa_supplicant_deauthenticate(wpa_s,
2666 WLAN_REASON_MICHAEL_MIC_FAILURE);
2667 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
2669 eloop_register_timeout(60, 0,
2670 wpa_supplicant_stop_countermeasures,
2672 /* TODO: mark the AP rejected for 60 second. STA is
2673 * allowed to associate with another AP.. */
2675 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2676 if (wpa_s->mic_errors_seen) {
2678 * Reduce the effectiveness of Michael MIC error
2679 * reports as a means for attacking against TKIP if
2680 * more than one MIC failure is noticed with the same
2681 * PTK. We delay the transmission of the reports by a
2682 * random time between 0 and 60 seconds in order to
2683 * force the attacker wait 60 seconds before getting
2684 * the information on whether a frame resulted in a MIC
2690 if (os_get_random(rval, sizeof(rval)) < 0)
2691 sec = os_random() % 60;
2693 sec = WPA_GET_BE32(rval) % 60;
2694 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
2695 "report %d seconds", sec);
2696 wpa_s->pending_mic_error_report = 1;
2697 wpa_s->pending_mic_error_pairwise = pairwise;
2698 eloop_cancel_timeout(
2699 wpa_supplicant_delayed_mic_error_report,
2701 eloop_register_timeout(
2702 sec, os_random() % 1000000,
2703 wpa_supplicant_delayed_mic_error_report,
2706 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2708 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2709 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2710 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2712 wpa_s->last_michael_mic_error = t;
2713 wpa_s->mic_errors_seen++;
2717 #ifdef CONFIG_TERMINATE_ONLASTIF
2718 static int any_interfaces(struct wpa_supplicant *head)
2720 struct wpa_supplicant *wpa_s;
2722 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
2723 if (!wpa_s->interface_removed)
2727 #endif /* CONFIG_TERMINATE_ONLASTIF */
2731 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
2732 union wpa_event_data *data)
2734 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
2737 switch (data->interface_status.ievent) {
2738 case EVENT_INTERFACE_ADDED:
2739 if (!wpa_s->interface_removed)
2741 wpa_s->interface_removed = 0;
2742 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
2743 if (wpa_supplicant_driver_init(wpa_s) < 0) {
2744 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
2745 "driver after interface was added");
2749 if (!wpa_s->global->p2p &&
2750 !wpa_s->global->p2p_disabled &&
2751 !wpa_s->conf->p2p_disabled &&
2753 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
2754 wpas_p2p_add_p2pdev_interface(
2755 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
2756 wpa_printf(MSG_INFO,
2757 "P2P: Failed to enable P2P Device interface");
2758 /* Try to continue without. P2P will be disabled. */
2760 #endif /* CONFIG_P2P */
2763 case EVENT_INTERFACE_REMOVED:
2764 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
2765 wpa_s->interface_removed = 1;
2766 wpa_supplicant_mark_disassoc(wpa_s);
2767 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2768 l2_packet_deinit(wpa_s->l2);
2772 if (wpa_s->global->p2p &&
2773 wpa_s->global->p2p_init_wpa_s->parent == wpa_s &&
2775 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) {
2776 wpa_dbg(wpa_s, MSG_DEBUG,
2777 "Removing P2P Device interface");
2778 wpa_supplicant_remove_iface(
2779 wpa_s->global, wpa_s->global->p2p_init_wpa_s,
2781 wpa_s->global->p2p_init_wpa_s = NULL;
2783 #endif /* CONFIG_P2P */
2785 #ifdef CONFIG_MATCH_IFACE
2786 if (wpa_s->matched) {
2787 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
2790 #endif /* CONFIG_MATCH_IFACE */
2792 #ifdef CONFIG_TERMINATE_ONLASTIF
2793 /* check if last interface */
2794 if (!any_interfaces(wpa_s->global->ifaces))
2796 #endif /* CONFIG_TERMINATE_ONLASTIF */
2802 #ifdef CONFIG_PEERKEY
2804 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2805 union wpa_event_data *data)
2809 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2811 #endif /* CONFIG_PEERKEY */
2815 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2816 union wpa_event_data *data)
2820 switch (data->tdls.oper) {
2821 case TDLS_REQUEST_SETUP:
2822 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
2823 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2824 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2826 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
2828 case TDLS_REQUEST_TEARDOWN:
2829 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2830 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
2831 data->tdls.reason_code);
2833 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
2836 case TDLS_REQUEST_DISCOVER:
2837 wpa_tdls_send_discovery_request(wpa_s->wpa,
2842 #endif /* CONFIG_TDLS */
2846 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
2847 union wpa_event_data *data)
2851 switch (data->wnm.oper) {
2852 case WNM_OPER_SLEEP:
2853 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
2854 "(action=%d, intval=%d)",
2855 data->wnm.sleep_action, data->wnm.sleep_intval);
2856 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
2857 data->wnm.sleep_intval, NULL);
2861 #endif /* CONFIG_WNM */
2864 #ifdef CONFIG_IEEE80211R
2866 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2867 union wpa_event_data *data)
2872 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2873 data->ft_ies.ies_len,
2874 data->ft_ies.ft_action,
2875 data->ft_ies.target_ap,
2876 data->ft_ies.ric_ies,
2877 data->ft_ies.ric_ies_len) < 0) {
2878 /* TODO: prevent MLME/driver from trying to associate? */
2881 #endif /* CONFIG_IEEE80211R */
2884 #ifdef CONFIG_IBSS_RSN
2885 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2886 union wpa_event_data *data)
2888 struct wpa_ssid *ssid;
2889 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2893 ssid = wpa_s->current_ssid;
2896 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2899 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2903 static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
2904 union wpa_event_data *data)
2906 struct wpa_ssid *ssid = wpa_s->current_ssid;
2911 /* check if the ssid is correctly configured as IBSS/RSN */
2912 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2915 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
2916 data->rx_mgmt.frame_len);
2918 #endif /* CONFIG_IBSS_RSN */
2921 #ifdef CONFIG_IEEE80211R
2922 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
2925 const u8 *sta_addr, *target_ap_addr;
2928 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
2929 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2930 return; /* only SME case supported for now */
2931 if (len < 1 + 2 * ETH_ALEN + 2)
2934 return; /* Only FT Action Response is supported for now */
2935 sta_addr = data + 1;
2936 target_ap_addr = data + 1 + ETH_ALEN;
2937 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
2938 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
2939 MACSTR " TargetAP " MACSTR " status %u",
2940 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
2942 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
2943 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
2944 " in FT Action Response", MAC2STR(sta_addr));
2949 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
2950 "failure (status code %d)", status);
2951 /* TODO: report error to FT code(?) */
2955 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
2956 len - (1 + 2 * ETH_ALEN + 2), 1,
2957 target_ap_addr, NULL, 0) < 0)
2962 struct wpa_bss *bss;
2963 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
2965 wpa_s->sme.freq = bss->freq;
2966 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
2967 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
2970 #endif /* CONFIG_SME */
2972 #endif /* CONFIG_IEEE80211R */
2975 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
2976 struct unprot_deauth *e)
2978 #ifdef CONFIG_IEEE80211W
2979 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
2980 "dropped: " MACSTR " -> " MACSTR
2981 " (reason code %u)",
2982 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2983 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2984 #endif /* CONFIG_IEEE80211W */
2988 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
2989 struct unprot_disassoc *e)
2991 #ifdef CONFIG_IEEE80211W
2992 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
2993 "dropped: " MACSTR " -> " MACSTR
2994 " (reason code %u)",
2995 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2996 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2997 #endif /* CONFIG_IEEE80211W */
3001 static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
3002 u16 reason_code, int locally_generated,
3003 const u8 *ie, size_t ie_len, int deauth)
3006 if (wpa_s->ap_iface && addr) {
3007 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
3011 if (wpa_s->ap_iface) {
3012 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
3015 #endif /* CONFIG_AP */
3017 if (!locally_generated)
3018 wpa_s->own_disconnect_req = 0;
3020 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
3022 if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
3023 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
3024 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
3025 eapol_sm_failed(wpa_s->eapol))) &&
3026 !wpa_s->eap_expected_failure))
3027 wpas_auth_failed(wpa_s, "AUTH_FAILED");
3030 if (deauth && reason_code > 0) {
3031 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
3032 locally_generated) > 0) {
3034 * The interface was removed, so cannot continue
3035 * processing any additional operations after this.
3040 #endif /* CONFIG_P2P */
3042 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
3047 static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
3048 struct disassoc_info *info)
3050 u16 reason_code = 0;
3051 int locally_generated = 0;
3052 const u8 *addr = NULL;
3053 const u8 *ie = NULL;
3056 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
3061 ie_len = info->ie_len;
3062 reason_code = info->reason_code;
3063 locally_generated = info->locally_generated;
3064 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code,
3065 locally_generated ? " (locally generated)" : "");
3067 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3069 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
3074 if (wpa_s->ap_iface && info && info->addr) {
3075 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
3079 if (wpa_s->ap_iface) {
3080 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
3083 #endif /* CONFIG_AP */
3087 wpas_p2p_disassoc_notif(
3088 wpa_s, info->addr, reason_code, info->ie, info->ie_len,
3091 #endif /* CONFIG_P2P */
3093 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3094 sme_event_disassoc(wpa_s, info);
3096 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
3101 static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
3102 struct deauth_info *info)
3104 u16 reason_code = 0;
3105 int locally_generated = 0;
3106 const u8 *addr = NULL;
3107 const u8 *ie = NULL;
3110 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
3115 ie_len = info->ie_len;
3116 reason_code = info->reason_code;
3117 locally_generated = info->locally_generated;
3118 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
3120 locally_generated ? " (locally generated)" : "");
3122 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3125 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
3129 wpa_reset_ft_completed(wpa_s->wpa);
3131 wpas_event_disconnect(wpa_s, addr, reason_code,
3132 locally_generated, ie, ie_len, 1);
3136 static const char * reg_init_str(enum reg_change_initiator init)
3139 case REGDOM_SET_BY_CORE:
3141 case REGDOM_SET_BY_USER:
3143 case REGDOM_SET_BY_DRIVER:
3145 case REGDOM_SET_BY_COUNTRY_IE:
3146 return "COUNTRY_IE";
3147 case REGDOM_BEACON_HINT:
3148 return "BEACON_HINT";
3154 static const char * reg_type_str(enum reg_type type)
3157 case REGDOM_TYPE_UNKNOWN:
3159 case REGDOM_TYPE_COUNTRY:
3161 case REGDOM_TYPE_WORLD:
3163 case REGDOM_TYPE_CUSTOM_WORLD:
3164 return "CUSTOM_WORLD";
3165 case REGDOM_TYPE_INTERSECTION:
3166 return "INTERSECTION";
3172 static void wpa_supplicant_update_channel_list(
3173 struct wpa_supplicant *wpa_s, struct channel_list_changed *info)
3175 struct wpa_supplicant *ifs;
3178 * To allow backwards compatibility with higher level layers that
3179 * assumed the REGDOM_CHANGE event is sent over the initially added
3180 * interface. Find the highest parent of this interface and use it to
3183 for (ifs = wpa_s; ifs->parent && ifs != ifs->parent; ifs = ifs->parent)
3186 wpa_msg(ifs, MSG_INFO, WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
3187 reg_init_str(info->initiator), reg_type_str(info->type),
3188 info->alpha2[0] ? " alpha2=" : "",
3189 info->alpha2[0] ? info->alpha2 : "");
3191 if (wpa_s->drv_priv == NULL)
3192 return; /* Ignore event during drv initialization */
3194 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
3196 wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
3198 free_hw_features(ifs);
3199 ifs->hw.modes = wpa_drv_get_hw_feature_data(
3200 ifs, &ifs->hw.num_modes, &ifs->hw.flags);
3203 /* Restart sched_scan with updated channel list */
3204 if (wpa_s->sched_scanning) {
3205 wpa_dbg(wpa_s, MSG_DEBUG,
3206 "Channel list changed restart sched scan.");
3207 wpa_supplicant_cancel_sched_scan(wpa_s);
3208 wpa_supplicant_req_scan(wpa_s, 0, 0);
3211 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER);
3215 static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
3216 const u8 *frame, size_t len, int freq,
3219 const struct ieee80211_mgmt *mgmt;
3224 if (len < IEEE80211_HDRLEN + 2)
3227 mgmt = (const struct ieee80211_mgmt *) frame;
3228 payload = frame + IEEE80211_HDRLEN;
3229 category = *payload++;
3230 plen = len - IEEE80211_HDRLEN - 1;
3232 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
3233 " Category=%u DataLen=%d freq=%d MHz",
3234 MAC2STR(mgmt->sa), category, (int) plen, freq);
3236 if (category == WLAN_ACTION_WMM) {
3237 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
3241 #ifdef CONFIG_IEEE80211R
3242 if (category == WLAN_ACTION_FT) {
3243 ft_rx_action(wpa_s, payload, plen);
3246 #endif /* CONFIG_IEEE80211R */
3248 #ifdef CONFIG_IEEE80211W
3250 if (category == WLAN_ACTION_SA_QUERY) {
3251 sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen);
3254 #endif /* CONFIG_SME */
3255 #endif /* CONFIG_IEEE80211W */
3258 if (mgmt->u.action.category == WLAN_ACTION_WNM) {
3259 ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
3262 #endif /* CONFIG_WNM */
3265 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
3266 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
3267 gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
3268 mgmt->u.action.category,
3269 payload, plen, freq) == 0)
3271 #endif /* CONFIG_GAS */
3274 if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
3275 payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
3276 wpa_dbg(wpa_s, MSG_DEBUG,
3277 "TDLS: Received Discovery Response from " MACSTR,
3281 #endif /* CONFIG_TDLS */
3283 #ifdef CONFIG_INTERWORKING
3284 if (category == WLAN_ACTION_QOS && plen >= 1 &&
3285 payload[0] == QOS_QOS_MAP_CONFIG) {
3286 const u8 *pos = payload + 1;
3287 size_t qlen = plen - 1;
3288 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
3289 MACSTR, MAC2STR(mgmt->sa));
3290 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
3291 qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
3292 pos[1] <= qlen - 2 && pos[1] >= 16)
3293 wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
3296 #endif /* CONFIG_INTERWORKING */
3298 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3299 payload[0] == WLAN_RRM_RADIO_MEASUREMENT_REQUEST) {
3300 wpas_rrm_handle_radio_measurement_request(wpa_s, mgmt->sa,
3306 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3307 payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
3308 wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
3312 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3313 payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
3314 wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
3315 payload + 1, plen - 1,
3321 if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) {
3322 fst_rx_action(wpa_s->fst, mgmt, len);
3325 #endif /* CONFIG_FST */
3327 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
3328 category, payload, plen, freq);
3330 mesh_mpm_action_rx(wpa_s, mgmt, len);
3334 static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
3335 union wpa_event_data *event)
3337 struct wpa_freq_range_list *list;
3340 list = &event->freq_range;
3343 str = freq_range_list_str(list);
3344 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
3348 if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
3349 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
3352 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
3355 * The update channel flow will also take care of moving a GO
3356 * from the unsafe frequency if needed.
3358 wpas_p2p_update_channel_list(wpa_s,
3359 WPAS_P2P_CHANNEL_UPDATE_AVOID);
3361 #endif /* CONFIG_P2P */
3367 static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
3368 union wpa_event_data *data)
3370 wpa_dbg(wpa_s, MSG_DEBUG,
3371 "Connection authorized by device, previous state %d",
3373 if (wpa_s->wpa_state == WPA_ASSOCIATED) {
3374 wpa_supplicant_cancel_auth_timeout(wpa_s);
3375 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3376 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
3377 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
3379 wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
3380 wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
3381 data->assoc_info.ptk_kck_len,
3382 data->assoc_info.ptk_kek,
3383 data->assoc_info.ptk_kek_len);
3387 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
3388 union wpa_event_data *data)
3390 struct wpa_supplicant *wpa_s = ctx;
3393 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
3394 event != EVENT_INTERFACE_ENABLED &&
3395 event != EVENT_INTERFACE_STATUS &&
3396 event != EVENT_SCAN_RESULTS &&
3397 event != EVENT_SCHED_SCAN_STOPPED) {
3398 wpa_dbg(wpa_s, MSG_DEBUG,
3399 "Ignore event %s (%d) while interface is disabled",
3400 event_to_string(event), event);
3404 #ifndef CONFIG_NO_STDOUT_DEBUG
3406 int level = MSG_DEBUG;
3408 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
3409 const struct ieee80211_hdr *hdr;
3411 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
3412 fc = le_to_host16(hdr->frame_control);
3413 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3414 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
3415 level = MSG_EXCESSIVE;
3418 wpa_dbg(wpa_s, level, "Event %s (%d) received",
3419 event_to_string(event), event);
3421 #endif /* CONFIG_NO_STDOUT_DEBUG */
3426 if (!wpas_fst_update_mbie(wpa_s, data->auth.ies,
3427 data->auth.ies_len))
3428 wpa_printf(MSG_DEBUG,
3429 "FST: MB IEs updated from auth IE");
3430 #endif /* CONFIG_FST */
3431 sme_event_auth(wpa_s, data);
3434 wpa_supplicant_event_assoc(wpa_s, data);
3435 if (data && data->assoc_info.authorized)
3436 wpa_supplicant_event_assoc_auth(wpa_s, data);
3438 wpa_msg(wpa_s, MSG_INFO,
3439 WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u",
3440 data->assoc_info.subnet_status);
3443 case EVENT_DISASSOC:
3444 wpas_event_disassoc(wpa_s,
3445 data ? &data->disassoc_info : NULL);
3448 wpas_event_deauth(wpa_s,
3449 data ? &data->deauth_info : NULL);
3451 case EVENT_MICHAEL_MIC_FAILURE:
3452 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
3454 #ifndef CONFIG_NO_SCAN_PROCESSING
3455 case EVENT_SCAN_STARTED:
3456 if (wpa_s->own_scan_requested ||
3457 (data && !data->scan_info.external_scan)) {
3458 struct os_reltime diff;
3460 os_get_reltime(&wpa_s->scan_start_time);
3461 os_reltime_sub(&wpa_s->scan_start_time,
3462 &wpa_s->scan_trigger_time, &diff);
3463 wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
3464 diff.sec, diff.usec);
3465 wpa_s->own_scan_requested = 0;
3466 wpa_s->own_scan_running = 1;
3467 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
3468 wpa_s->manual_scan_use_id) {
3469 wpa_msg_ctrl(wpa_s, MSG_INFO,
3470 WPA_EVENT_SCAN_STARTED "id=%u",
3471 wpa_s->manual_scan_id);
3473 wpa_msg_ctrl(wpa_s, MSG_INFO,
3474 WPA_EVENT_SCAN_STARTED);
3477 wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
3478 wpa_s->radio->external_scan_running = 1;
3479 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
3482 case EVENT_SCAN_RESULTS:
3483 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3484 wpa_s->scan_res_handler = NULL;
3485 wpa_s->own_scan_running = 0;
3486 wpa_s->radio->external_scan_running = 0;
3487 wpa_s->last_scan_req = NORMAL_SCAN_REQ;
3491 if (!(data && data->scan_info.external_scan) &&
3492 os_reltime_initialized(&wpa_s->scan_start_time)) {
3493 struct os_reltime now, diff;
3494 os_get_reltime(&now);
3495 os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
3496 wpa_s->scan_start_time.sec = 0;
3497 wpa_s->scan_start_time.usec = 0;
3498 wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
3499 diff.sec, diff.usec);
3501 if (wpa_supplicant_event_scan_results(wpa_s, data))
3502 break; /* interface may have been removed */
3503 if (!(data && data->scan_info.external_scan))
3504 wpa_s->own_scan_running = 0;
3505 if (data && data->scan_info.nl_scan_event)
3506 wpa_s->radio->external_scan_running = 0;
3507 radio_work_check_next(wpa_s);
3509 #endif /* CONFIG_NO_SCAN_PROCESSING */
3510 case EVENT_ASSOCINFO:
3511 wpa_supplicant_event_associnfo(wpa_s, data);
3513 case EVENT_INTERFACE_STATUS:
3514 wpa_supplicant_event_interface_status(wpa_s, data);
3516 case EVENT_PMKID_CANDIDATE:
3517 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
3519 #ifdef CONFIG_PEERKEY
3520 case EVENT_STKSTART:
3521 wpa_supplicant_event_stkstart(wpa_s, data);
3523 #endif /* CONFIG_PEERKEY */
3526 wpa_supplicant_event_tdls(wpa_s, data);
3528 #endif /* CONFIG_TDLS */
3531 wpa_supplicant_event_wnm(wpa_s, data);
3533 #endif /* CONFIG_WNM */
3534 #ifdef CONFIG_IEEE80211R
3535 case EVENT_FT_RESPONSE:
3536 wpa_supplicant_event_ft_response(wpa_s, data);
3538 #endif /* CONFIG_IEEE80211R */
3539 #ifdef CONFIG_IBSS_RSN
3540 case EVENT_IBSS_RSN_START:
3541 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
3543 #endif /* CONFIG_IBSS_RSN */
3544 case EVENT_ASSOC_REJECT:
3545 if (data->assoc_reject.bssid)
3546 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3547 "bssid=" MACSTR " status_code=%u%s",
3548 MAC2STR(data->assoc_reject.bssid),
3549 data->assoc_reject.status_code,
3550 data->assoc_reject.timed_out ? " timeout" : "");
3552 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3554 data->assoc_reject.status_code,
3555 data->assoc_reject.timed_out ? " timeout" : "");
3556 wpa_s->assoc_status_code = data->assoc_reject.status_code;
3557 wpas_notify_assoc_status_code(wpa_s);
3558 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3559 sme_event_assoc_reject(wpa_s, data);
3561 const u8 *bssid = data->assoc_reject.bssid;
3562 if (bssid == NULL || is_zero_ether_addr(bssid))
3563 bssid = wpa_s->pending_bssid;
3564 wpas_connection_failed(wpa_s, bssid);
3565 wpa_supplicant_mark_disassoc(wpa_s);
3568 case EVENT_AUTH_TIMED_OUT:
3569 /* It is possible to get this event from earlier connection */
3570 if (wpa_s->current_ssid &&
3571 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3572 wpa_dbg(wpa_s, MSG_DEBUG,
3573 "Ignore AUTH_TIMED_OUT in mesh configuration");
3576 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3577 sme_event_auth_timed_out(wpa_s, data);
3579 case EVENT_ASSOC_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 ASSOC_TIMED_OUT in mesh configuration");
3587 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3588 sme_event_assoc_timed_out(wpa_s, data);
3590 case EVENT_TX_STATUS:
3591 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
3592 " type=%d stype=%d",
3593 MAC2STR(data->tx_status.dst),
3594 data->tx_status.type, data->tx_status.stype);
3596 if (wpa_s->ap_iface == NULL) {
3597 #ifdef CONFIG_OFFCHANNEL
3598 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3599 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
3600 offchannel_send_action_tx_status(
3601 wpa_s, data->tx_status.dst,
3602 data->tx_status.data,
3603 data->tx_status.data_len,
3604 data->tx_status.ack ?
3605 OFFCHANNEL_SEND_ACTION_SUCCESS :
3606 OFFCHANNEL_SEND_ACTION_NO_ACK);
3607 #endif /* CONFIG_OFFCHANNEL */
3610 #endif /* CONFIG_AP */
3611 #ifdef CONFIG_OFFCHANNEL
3612 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
3613 MACSTR, MAC2STR(wpa_s->p2pdev->pending_action_dst));
3615 * Catch TX status events for Action frames we sent via group
3616 * interface in GO mode, or via standalone AP interface.
3617 * Note, wpa_s->p2pdev will be the same as wpa_s->parent,
3618 * except when the primary interface is used as a GO interface
3619 * (for drivers which do not have group interface concurrency)
3621 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3622 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
3623 os_memcmp(wpa_s->p2pdev->pending_action_dst,
3624 data->tx_status.dst, ETH_ALEN) == 0) {
3625 offchannel_send_action_tx_status(
3626 wpa_s->p2pdev, data->tx_status.dst,
3627 data->tx_status.data,
3628 data->tx_status.data_len,
3629 data->tx_status.ack ?
3630 OFFCHANNEL_SEND_ACTION_SUCCESS :
3631 OFFCHANNEL_SEND_ACTION_NO_ACK);
3634 #endif /* CONFIG_OFFCHANNEL */
3636 switch (data->tx_status.type) {
3637 case WLAN_FC_TYPE_MGMT:
3638 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
3639 data->tx_status.data_len,
3640 data->tx_status.stype,
3641 data->tx_status.ack);
3643 case WLAN_FC_TYPE_DATA:
3644 ap_tx_status(wpa_s, data->tx_status.dst,
3645 data->tx_status.data,
3646 data->tx_status.data_len,
3647 data->tx_status.ack);
3650 #endif /* CONFIG_AP */
3653 case EVENT_EAPOL_TX_STATUS:
3654 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
3655 data->eapol_tx_status.data,
3656 data->eapol_tx_status.data_len,
3657 data->eapol_tx_status.ack);
3659 case EVENT_DRIVER_CLIENT_POLL_OK:
3660 ap_client_poll_ok(wpa_s, data->client_poll.addr);
3662 case EVENT_RX_FROM_UNKNOWN:
3663 if (wpa_s->ap_iface == NULL)
3665 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
3666 data->rx_from_unknown.wds);
3668 case EVENT_CH_SWITCH:
3669 if (!data || !wpa_s->current_ssid)
3672 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CHANNEL_SWITCH
3673 "freq=%d ht_enabled=%d ch_offset=%d ch_width=%s cf1=%d cf2=%d",
3674 data->ch_switch.freq,
3675 data->ch_switch.ht_enabled,
3676 data->ch_switch.ch_offset,
3677 channel_width_to_string(data->ch_switch.ch_width),
3678 data->ch_switch.cf1,
3679 data->ch_switch.cf2);
3681 wpa_s->assoc_freq = data->ch_switch.freq;
3682 wpa_s->current_ssid->frequency = data->ch_switch.freq;
3684 if (wpa_s->current_ssid->mode == WPAS_MODE_AP ||
3685 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO ||
3686 wpa_s->current_ssid->mode ==
3687 WPAS_MODE_P2P_GROUP_FORMATION) {
3688 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
3689 data->ch_switch.ht_enabled,
3690 data->ch_switch.ch_offset,
3691 data->ch_switch.ch_width,
3692 data->ch_switch.cf1,
3693 data->ch_switch.cf2);
3696 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS);
3699 case EVENT_DFS_RADAR_DETECTED:
3701 wpas_event_dfs_radar_detected(wpa_s, &data->dfs_event);
3703 case EVENT_DFS_CAC_STARTED:
3705 wpas_event_dfs_cac_started(wpa_s, &data->dfs_event);
3707 case EVENT_DFS_CAC_FINISHED:
3709 wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event);
3711 case EVENT_DFS_CAC_ABORTED:
3713 wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event);
3715 case EVENT_DFS_NOP_FINISHED:
3717 wpas_event_dfs_cac_nop_finished(wpa_s,
3720 #endif /* NEED_AP_MLME */
3721 #endif /* CONFIG_AP */
3722 case EVENT_RX_MGMT: {
3724 const struct ieee80211_mgmt *mgmt;
3726 #ifdef CONFIG_TESTING_OPTIONS
3727 if (wpa_s->ext_mgmt_frame_handling) {
3728 struct rx_mgmt *rx = &data->rx_mgmt;
3729 size_t hex_len = 2 * rx->frame_len + 1;
3730 char *hex = os_malloc(hex_len);
3732 wpa_snprintf_hex(hex, hex_len,
3733 rx->frame, rx->frame_len);
3734 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
3735 rx->freq, rx->datarate, rx->ssi_signal,
3741 #endif /* CONFIG_TESTING_OPTIONS */
3743 mgmt = (const struct ieee80211_mgmt *)
3744 data->rx_mgmt.frame;
3745 fc = le_to_host16(mgmt->frame_control);
3746 stype = WLAN_FC_GET_STYPE(fc);
3749 if (wpa_s->ap_iface == NULL) {
3750 #endif /* CONFIG_AP */
3752 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3753 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
3754 const u8 *src = mgmt->sa;
3758 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
3759 ie_len = data->rx_mgmt.frame_len -
3761 wpas_p2p_probe_req_rx(
3762 wpa_s, src, mgmt->da,
3763 mgmt->bssid, ie, ie_len,
3765 data->rx_mgmt.ssi_signal);
3768 #endif /* CONFIG_P2P */
3769 #ifdef CONFIG_IBSS_RSN
3770 if (wpa_s->current_ssid &&
3771 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
3772 stype == WLAN_FC_STYPE_AUTH &&
3773 data->rx_mgmt.frame_len >= 30) {
3774 wpa_supplicant_event_ibss_auth(wpa_s, data);
3777 #endif /* CONFIG_IBSS_RSN */
3779 if (stype == WLAN_FC_STYPE_ACTION) {
3780 wpas_event_rx_mgmt_action(
3781 wpa_s, data->rx_mgmt.frame,
3782 data->rx_mgmt.frame_len,
3784 data->rx_mgmt.ssi_signal);
3789 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
3793 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
3794 "management frame in non-AP mode");
3799 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3800 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
3804 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
3805 ie_len = data->rx_mgmt.frame_len - IEEE80211_HDRLEN;
3807 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
3808 mgmt->bssid, ie, ie_len,
3809 data->rx_mgmt.ssi_signal);
3812 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
3813 #endif /* CONFIG_AP */
3816 case EVENT_RX_PROBE_REQ:
3817 if (data->rx_probe_req.sa == NULL ||
3818 data->rx_probe_req.ie == NULL)
3821 if (wpa_s->ap_iface) {
3822 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
3823 data->rx_probe_req.sa,
3824 data->rx_probe_req.da,
3825 data->rx_probe_req.bssid,
3826 data->rx_probe_req.ie,
3827 data->rx_probe_req.ie_len,
3828 data->rx_probe_req.ssi_signal);
3831 #endif /* CONFIG_AP */
3832 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
3833 data->rx_probe_req.da,
3834 data->rx_probe_req.bssid,
3835 data->rx_probe_req.ie,
3836 data->rx_probe_req.ie_len,
3838 data->rx_probe_req.ssi_signal);
3840 case EVENT_REMAIN_ON_CHANNEL:
3841 #ifdef CONFIG_OFFCHANNEL
3842 offchannel_remain_on_channel_cb(
3843 wpa_s, data->remain_on_channel.freq,
3844 data->remain_on_channel.duration);
3845 #endif /* CONFIG_OFFCHANNEL */
3846 wpas_p2p_remain_on_channel_cb(
3847 wpa_s, data->remain_on_channel.freq,
3848 data->remain_on_channel.duration);
3850 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
3851 #ifdef CONFIG_OFFCHANNEL
3852 offchannel_cancel_remain_on_channel_cb(
3853 wpa_s, data->remain_on_channel.freq);
3854 #endif /* CONFIG_OFFCHANNEL */
3855 wpas_p2p_cancel_remain_on_channel_cb(
3856 wpa_s, data->remain_on_channel.freq);
3858 case EVENT_EAPOL_RX:
3859 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
3860 data->eapol_rx.data,
3861 data->eapol_rx.data_len);
3863 case EVENT_SIGNAL_CHANGE:
3864 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
3865 "above=%d signal=%d noise=%d txrate=%d",
3866 data->signal_change.above_threshold,
3867 data->signal_change.current_signal,
3868 data->signal_change.current_noise,
3869 data->signal_change.current_txrate);
3870 wpa_bss_update_level(wpa_s->current_bss,
3871 data->signal_change.current_signal);
3872 bgscan_notify_signal_change(
3873 wpa_s, data->signal_change.above_threshold,
3874 data->signal_change.current_signal,
3875 data->signal_change.current_noise,
3876 data->signal_change.current_txrate);
3878 case EVENT_INTERFACE_ENABLED:
3879 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
3880 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3881 wpa_supplicant_update_mac_addr(wpa_s);
3882 if (wpa_s->p2p_mgmt) {
3883 wpa_supplicant_set_state(wpa_s,
3889 if (!wpa_s->ap_iface) {
3890 wpa_supplicant_set_state(wpa_s,
3892 wpa_s->scan_req = NORMAL_SCAN_REQ;
3893 wpa_supplicant_req_scan(wpa_s, 0, 0);
3895 wpa_supplicant_set_state(wpa_s,
3897 #else /* CONFIG_AP */
3898 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
3899 wpa_supplicant_req_scan(wpa_s, 0, 0);
3900 #endif /* CONFIG_AP */
3903 case EVENT_INTERFACE_DISABLED:
3904 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
3906 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
3907 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
3908 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
3910 * Mark interface disabled if this happens to end up not
3911 * being removed as a separate P2P group interface.
3913 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3915 * The interface was externally disabled. Remove
3916 * it assuming an external entity will start a
3917 * new session if needed.
3919 if (wpa_s->current_ssid &&
3920 wpa_s->current_ssid->p2p_group)
3921 wpas_p2p_interface_unavailable(wpa_s);
3923 wpas_p2p_disconnect(wpa_s);
3925 * wpa_s instance may have been freed, so must not use
3930 if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
3931 p2p_in_progress(wpa_s->global->p2p) > 1) {
3932 /* This radio work will be cancelled, so clear P2P
3935 p2p_stop_find(wpa_s->global->p2p);
3937 #endif /* CONFIG_P2P */
3939 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3941 * Indicate disconnection to keep ctrl_iface events
3944 wpa_supplicant_event_disassoc(
3945 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
3947 wpa_supplicant_mark_disassoc(wpa_s);
3948 radio_remove_works(wpa_s, NULL, 0);
3950 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3952 case EVENT_CHANNEL_LIST_CHANGED:
3953 wpa_supplicant_update_channel_list(
3954 wpa_s, &data->channel_list_changed);
3956 case EVENT_INTERFACE_UNAVAILABLE:
3957 wpas_p2p_interface_unavailable(wpa_s);
3959 case EVENT_BEST_CHANNEL:
3960 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
3962 data->best_chan.freq_24, data->best_chan.freq_5,
3963 data->best_chan.freq_overall);
3964 wpa_s->best_24_freq = data->best_chan.freq_24;
3965 wpa_s->best_5_freq = data->best_chan.freq_5;
3966 wpa_s->best_overall_freq = data->best_chan.freq_overall;
3967 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
3968 data->best_chan.freq_5,
3969 data->best_chan.freq_overall);
3971 case EVENT_UNPROT_DEAUTH:
3972 wpa_supplicant_event_unprot_deauth(wpa_s,
3973 &data->unprot_deauth);
3975 case EVENT_UNPROT_DISASSOC:
3976 wpa_supplicant_event_unprot_disassoc(wpa_s,
3977 &data->unprot_disassoc);
3979 case EVENT_STATION_LOW_ACK:
3981 if (wpa_s->ap_iface && data)
3982 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
3983 data->low_ack.addr);
3984 #endif /* CONFIG_AP */
3987 wpa_tdls_disable_unreachable_link(wpa_s->wpa,
3988 data->low_ack.addr);
3989 #endif /* CONFIG_TDLS */
3991 case EVENT_IBSS_PEER_LOST:
3992 #ifdef CONFIG_IBSS_RSN
3993 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
3994 #endif /* CONFIG_IBSS_RSN */
3996 case EVENT_DRIVER_GTK_REKEY:
3997 if (os_memcmp(data->driver_gtk_rekey.bssid,
3998 wpa_s->bssid, ETH_ALEN))
4002 wpa_sm_update_replay_ctr(wpa_s->wpa,
4003 data->driver_gtk_rekey.replay_ctr);
4005 case EVENT_SCHED_SCAN_STOPPED:
4006 wpa_s->sched_scanning = 0;
4007 resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s);
4008 wpa_supplicant_notify_scanning(wpa_s, 0);
4010 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
4014 * Start a new sched scan to continue searching for more SSIDs
4015 * either if timed out or PNO schedule scan is pending.
4017 if (wpa_s->sched_scan_timed_out) {
4018 wpa_supplicant_req_sched_scan(wpa_s);
4019 } else if (wpa_s->pno_sched_pending) {
4020 wpa_s->pno_sched_pending = 0;
4021 wpas_start_pno(wpa_s);
4022 } else if (resched) {
4023 wpa_supplicant_req_scan(wpa_s, 0, 0);
4027 case EVENT_WPS_BUTTON_PUSHED:
4029 wpas_wps_start_pbc(wpa_s, NULL, 0);
4030 #endif /* CONFIG_WPS */
4032 case EVENT_AVOID_FREQUENCIES:
4033 wpa_supplicant_notify_avoid_freq(wpa_s, data);
4035 case EVENT_CONNECT_FAILED_REASON:
4037 if (!wpa_s->ap_iface || !data)
4039 hostapd_event_connect_failed_reason(
4040 wpa_s->ap_iface->bss[0],
4041 data->connect_failed_reason.addr,
4042 data->connect_failed_reason.code);
4043 #endif /* CONFIG_AP */
4045 case EVENT_NEW_PEER_CANDIDATE:
4047 if (!wpa_s->ifmsh || !data)
4049 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
4050 data->mesh_peer.ies,
4051 data->mesh_peer.ie_len);
4052 #endif /* CONFIG_MESH */
4056 if (!wpa_s->ap_iface)
4058 hostapd_event_get_survey(wpa_s->ap_iface,
4059 &data->survey_results);
4060 #endif /* CONFIG_AP */
4062 case EVENT_ACS_CHANNEL_SELECTED:
4064 if (!wpa_s->ap_iface)
4066 hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0],
4067 &data->acs_selected_channels);
4068 #endif /* CONFIG_ACS */
4071 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
4077 void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event,
4078 union wpa_event_data *data)
4080 struct wpa_supplicant *wpa_s;
4082 if (event != EVENT_INTERFACE_STATUS)
4085 wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname);
4086 if (wpa_s && wpa_s->driver->get_ifindex) {
4087 unsigned int ifindex;
4089 ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv);
4090 if (ifindex != data->interface_status.ifindex) {
4091 wpa_dbg(wpa_s, MSG_DEBUG,
4092 "interface status ifindex %d mismatch (%d)",
4093 ifindex, data->interface_status.ifindex);
4097 #ifdef CONFIG_MATCH_IFACE
4098 else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) {
4099 struct wpa_interface *wpa_i;
4101 wpa_i = wpa_supplicant_match_iface(
4102 ctx, data->interface_status.ifname);
4105 wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL);
4110 #endif /* CONFIG_MATCH_IFACE */
4113 wpa_supplicant_event(wpa_s, event, data);