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 */
284 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
287 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
288 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
289 os_memset(wpa_s->bssid, 0, ETH_ALEN);
290 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
291 sme_clear_on_disassoc(wpa_s);
292 wpa_s->current_bss = NULL;
293 wpa_s->assoc_freq = 0;
296 wpas_notify_bssid_changed(wpa_s);
298 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
299 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
300 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
301 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
302 wpa_s->ap_ies_from_associnfo = 0;
303 wpa_s->current_ssid = NULL;
304 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
307 wpas_rrm_reset(wpa_s);
308 wpa_s->wnmsleep_used = 0;
312 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
314 struct wpa_ie_data ie;
318 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
322 for (i = 0; i < ie.num_pmkid; i++) {
323 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
324 ie.pmkid + i * PMKID_LEN,
326 if (pmksa_set == 0) {
327 eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
332 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
333 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
337 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
338 union wpa_event_data *data)
341 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
345 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
346 " index=%d preauth=%d",
347 MAC2STR(data->pmkid_candidate.bssid),
348 data->pmkid_candidate.index,
349 data->pmkid_candidate.preauth);
351 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
352 data->pmkid_candidate.index,
353 data->pmkid_candidate.preauth);
357 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
359 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
360 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
363 #ifdef IEEE8021X_EAPOL
364 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
365 wpa_s->current_ssid &&
366 !(wpa_s->current_ssid->eapol_flags &
367 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
368 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
369 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
370 * plaintext or static WEP keys). */
373 #endif /* IEEE8021X_EAPOL */
380 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
381 * @wpa_s: pointer to wpa_supplicant data
382 * @ssid: Configuration data for the network
383 * Returns: 0 on success, -1 on failure
385 * This function is called when starting authentication with a network that is
386 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
388 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
389 struct wpa_ssid *ssid)
391 #ifdef IEEE8021X_EAPOL
393 int aka = 0, sim = 0;
395 if ((ssid != NULL && ssid->eap.pcsc == NULL) ||
396 wpa_s->scard != NULL || wpa_s->conf->external_sim)
399 if (ssid == NULL || ssid->eap.eap_methods == NULL) {
403 struct eap_method_type *eap = ssid->eap.eap_methods;
404 while (eap->vendor != EAP_VENDOR_IETF ||
405 eap->method != EAP_TYPE_NONE) {
406 if (eap->vendor == EAP_VENDOR_IETF) {
407 if (eap->method == EAP_TYPE_SIM)
409 else if (eap->method == EAP_TYPE_AKA ||
410 eap->method == EAP_TYPE_AKA_PRIME)
417 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
419 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
420 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
425 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
426 "use SIM, but neither EAP-SIM nor EAP-AKA are "
431 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
432 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
434 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
435 if (wpa_s->scard == NULL) {
436 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
440 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
441 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
442 #endif /* PCSC_FUNCS */
443 #endif /* IEEE8021X_EAPOL */
449 #ifndef CONFIG_NO_SCAN_PROCESSING
451 static int has_wep_key(struct wpa_ssid *ssid)
455 for (i = 0; i < NUM_WEP_KEYS; i++) {
456 if (ssid->wep_key_len[i])
464 static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
465 struct wpa_ssid *ssid)
469 if (ssid->mixed_cell)
473 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
475 #endif /* CONFIG_WPS */
477 if (has_wep_key(ssid))
480 #ifdef IEEE8021X_EAPOL
481 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
482 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
483 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
485 #endif /* IEEE8021X_EAPOL */
487 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
490 if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)
493 if (bss->caps & IEEE80211_CAP_PRIVACY)
499 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
500 struct wpa_ssid *ssid,
503 struct wpa_ie_data ie;
505 const u8 *rsn_ie, *wpa_ie;
509 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
513 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
514 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
515 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
516 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
517 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
519 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
520 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
523 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
524 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse "
530 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
532 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
537 if (!(ie.proto & ssid->proto)) {
538 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto "
543 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
544 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK "
549 if (!(ie.group_cipher & ssid->group_cipher)) {
550 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK "
555 if (!(ie.key_mgmt & ssid->key_mgmt)) {
556 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt "
561 #ifdef CONFIG_IEEE80211W
562 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
563 wpas_get_ssid_pmf(wpa_s, ssid) ==
564 MGMT_FRAME_PROTECTION_REQUIRED) {
565 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt "
569 #endif /* CONFIG_IEEE80211W */
570 if ((ie.capabilities & WPA_CAPABILITY_MFPR) &&
571 wpas_get_ssid_pmf(wpa_s, ssid) ==
572 NO_MGMT_FRAME_PROTECTION) {
573 wpa_dbg(wpa_s, MSG_DEBUG,
574 " skip RSN IE - no mgmt frame protection enabled but AP requires it");
578 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
579 wpas_mbo_get_bss_attr(bss, MBO_ATTR_ID_AP_CAPA_IND) &&
580 wpas_get_ssid_pmf(wpa_s, ssid) !=
581 NO_MGMT_FRAME_PROTECTION) {
582 wpa_dbg(wpa_s, MSG_DEBUG,
583 " skip RSN IE - no mgmt frame protection enabled on MBO AP");
586 #endif /* CONFIG_MBO */
588 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE");
592 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
593 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
596 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
597 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse "
603 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
605 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
610 if (!(ie.proto & ssid->proto)) {
611 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto "
616 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
617 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK "
622 if (!(ie.group_cipher & ssid->group_cipher)) {
623 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK "
628 if (!(ie.key_mgmt & ssid->key_mgmt)) {
629 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt "
634 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE");
638 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
640 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X");
644 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
645 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
646 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match");
650 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) &&
651 wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) {
652 wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN");
656 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
657 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
661 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with "
668 static int freq_allowed(int *freqs, int freq)
675 for (i = 0; freqs[i]; i++)
676 if (freqs[i] == freq)
682 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
684 const struct hostapd_hw_modes *mode = NULL, *modes;
685 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
690 return 1; /* Cannot do matching without knowing band */
692 modes = wpa_s->hw.modes;
695 * The driver does not provide any additional information
696 * about the utilized hardware, so allow the connection attempt
702 for (i = 0; i < wpa_s->hw.num_modes; i++) {
703 for (j = 0; j < modes[i].num_channels; j++) {
704 int freq = modes[i].channels[j].freq;
705 if (freq == bss->freq) {
707 mode->mode == HOSTAPD_MODE_IEEE80211G)
708 break; /* do not allow 802.11b replace
719 for (i = 0; i < (int) sizeof(scan_ie); i++) {
720 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
724 for (j = 2; j < rate_ie[1] + 2; j++) {
725 int flagged = !!(rate_ie[j] & 0x80);
726 int r = (rate_ie[j] & 0x7f) * 5;
729 * IEEE Std 802.11n-2009 7.3.2.2:
730 * The new BSS Membership selector value is encoded
731 * like a legacy basic rate, but it is not a rate and
732 * only indicates if the BSS members are required to
733 * support the mandatory features of Clause 20 [HT PHY]
734 * in order to join the BSS.
736 if (flagged && ((rate_ie[j] & 0x7f) ==
737 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
738 if (!ht_supported(mode)) {
739 wpa_dbg(wpa_s, MSG_DEBUG,
740 " hardware does not support "
747 /* There's also a VHT selector for 802.11ac */
748 if (flagged && ((rate_ie[j] & 0x7f) ==
749 BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
750 if (!vht_supported(mode)) {
751 wpa_dbg(wpa_s, MSG_DEBUG,
752 " hardware does not support "
762 /* check for legacy basic rates */
763 for (k = 0; k < mode->num_rates; k++) {
764 if (mode->rates[k] == r)
767 if (k == mode->num_rates) {
769 * IEEE Std 802.11-2007 7.3.2.2 demands that in
770 * order to join a BSS all required rates
771 * have to be supported by the hardware.
773 wpa_dbg(wpa_s, MSG_DEBUG,
774 " hardware does not support required rate %d.%d Mbps (freq=%d mode==%d num_rates=%d)",
776 bss->freq, mode->mode, mode->num_rates);
787 * Test whether BSS is in an ESS.
788 * This is done differently in DMG (60 GHz) and non-DMG bands
790 static int bss_is_ess(struct wpa_bss *bss)
792 if (bss_is_dmg(bss)) {
793 return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
794 IEEE80211_CAP_DMG_AP;
797 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
802 static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask)
806 for (i = 0; i < ETH_ALEN; i++) {
807 if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i]))
814 static int addr_in_list(const u8 *addr, const u8 *list, size_t num)
818 for (i = 0; i < num; i++) {
819 const u8 *a = list + i * ETH_ALEN * 2;
820 const u8 *m = a + ETH_ALEN;
822 if (match_mac_mask(a, addr, m))
829 struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
830 int i, struct wpa_bss *bss,
831 struct wpa_ssid *group,
834 u8 wpa_ie_len, rsn_ie_len;
836 struct wpa_blacklist *e;
838 struct wpa_ssid *ssid;
841 const u8 *assoc_disallow;
842 #endif /* CONFIG_MBO */
844 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
845 wpa_ie_len = ie ? ie[1] : 0;
847 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
848 rsn_ie_len = ie ? ie[1] : 0;
850 ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
853 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
854 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d freq=%d %s%s%s",
855 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len),
856 wpa_ie_len, rsn_ie_len, bss->caps, bss->level, bss->freq,
857 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "",
858 (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
859 wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) ?
861 osen ? " osen=1" : "");
863 e = wpa_blacklist_get(wpa_s, bss->bssid);
866 if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
868 * When only a single network is enabled, we can
869 * trigger blacklisting on the first failure. This
870 * should not be done with multiple enabled networks to
871 * avoid getting forced to move into a worse ESS on
872 * single error if there are no other BSSes of the
877 if (e->count > limit) {
878 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
879 "(count=%d limit=%d)", e->count, limit);
884 if (bss->ssid_len == 0) {
885 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
889 if (disallowed_bssid(wpa_s, bss->bssid)) {
890 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed");
894 if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) {
895 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed");
899 wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
901 for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) {
902 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
905 if (wpas_network_disabled(wpa_s, ssid)) {
906 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
910 res = wpas_temp_disabled(wpa_s, ssid);
912 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled "
913 "temporarily for %d second(s)", res);
918 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
919 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
924 if (wpa && ssid->ssid_len == 0 &&
925 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
928 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
929 /* Only allow wildcard SSID match if an AP
930 * advertises active WPS operation that matches
933 if (ssid->ssid_len == 0 &&
934 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
937 #endif /* CONFIG_WPS */
939 if (ssid->bssid_set && ssid->ssid_len == 0 &&
940 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
944 (bss->ssid_len != ssid->ssid_len ||
945 os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) {
946 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
950 if (ssid->bssid_set &&
951 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
952 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
956 /* check blacklist */
957 if (ssid->num_bssid_blacklist &&
958 addr_in_list(bss->bssid, ssid->bssid_blacklist,
959 ssid->num_bssid_blacklist)) {
960 wpa_dbg(wpa_s, MSG_DEBUG,
961 " skip - BSSID blacklisted");
965 /* if there is a whitelist, only accept those APs */
966 if (ssid->num_bssid_whitelist &&
967 !addr_in_list(bss->bssid, ssid->bssid_whitelist,
968 ssid->num_bssid_whitelist)) {
969 wpa_dbg(wpa_s, MSG_DEBUG,
970 " skip - BSSID not in whitelist");
974 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
978 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
979 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
980 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
981 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network "
986 if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
988 wpa_dbg(wpa_s, MSG_DEBUG, " skip - ignore WPA/WPA2 AP for WEP network block");
992 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen) {
993 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-OSEN network "
998 if (!wpa_supplicant_match_privacy(bss, ssid)) {
999 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy "
1004 if (!bss_is_ess(bss) && !bss_is_pbss(bss)) {
1005 wpa_dbg(wpa_s, MSG_DEBUG, " skip - neither ESS nor PBSS network");
1009 if (ssid->pbss != bss_is_pbss(bss)) {
1010 wpa_dbg(wpa_s, MSG_DEBUG, " skip - PBSS mismatch (ssid %d bss %d)",
1011 ssid->pbss, bss_is_pbss(bss));
1015 if (!freq_allowed(ssid->freq_list, bss->freq)) {
1016 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not "
1021 if (!rate_match(wpa_s, bss)) {
1022 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do "
1028 if (ssid->p2p_group &&
1029 !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
1030 !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
1031 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P IE seen");
1035 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
1036 struct wpabuf *p2p_ie;
1037 u8 dev_addr[ETH_ALEN];
1039 ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
1041 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P element");
1044 p2p_ie = wpa_bss_get_vendor_ie_multi(
1045 bss, P2P_IE_VENDOR_TYPE);
1046 if (p2p_ie == NULL) {
1047 wpa_dbg(wpa_s, MSG_DEBUG, " skip - could not fetch P2P element");
1051 if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0
1052 || os_memcmp(dev_addr, ssid->go_p2p_dev_addr,
1054 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no matching GO P2P Device Address in P2P element");
1055 wpabuf_free(p2p_ie);
1058 wpabuf_free(p2p_ie);
1062 * TODO: skip the AP if its P2P IE has Group Formation
1063 * bit set in the P2P Group Capability Bitmap and we
1064 * are not in Group Formation with that device.
1066 #endif /* CONFIG_P2P */
1068 if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time))
1070 struct os_reltime diff;
1072 os_reltime_sub(&wpa_s->scan_min_time,
1073 &bss->last_update, &diff);
1074 wpa_dbg(wpa_s, MSG_DEBUG,
1075 " skip - scan result not recent enough (%u.%06u seconds too old)",
1076 (unsigned int) diff.sec,
1077 (unsigned int) diff.usec);
1081 assoc_disallow = wpas_mbo_get_bss_attr(
1082 bss, MBO_ATTR_ID_ASSOC_DISALLOW);
1083 if (assoc_disallow && assoc_disallow[1] >= 1) {
1084 wpa_dbg(wpa_s, MSG_DEBUG,
1085 " skip - MBO association disallowed (reason %u)",
1090 if (wpa_is_bss_tmp_disallowed(wpa_s, bss->bssid)) {
1091 wpa_dbg(wpa_s, MSG_DEBUG,
1092 " skip - MBO retry delay has not passed yet");
1095 #endif /* CONFIG_MBO */
1097 /* Matching configuration found */
1101 /* No matching configuration found */
1106 static struct wpa_bss *
1107 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
1108 struct wpa_ssid *group,
1109 struct wpa_ssid **selected_ssid,
1110 int only_first_ssid)
1114 if (only_first_ssid)
1115 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
1118 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
1121 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
1122 struct wpa_bss *bss = wpa_s->last_scan_res[i];
1123 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
1125 if (!*selected_ssid)
1127 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
1129 MAC2STR(bss->bssid),
1130 wpa_ssid_txt(bss->ssid, bss->ssid_len));
1138 struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
1139 struct wpa_ssid **selected_ssid)
1141 struct wpa_bss *selected = NULL;
1143 struct wpa_ssid *next_ssid = NULL;
1144 struct wpa_ssid *ssid;
1146 if (wpa_s->last_scan_res == NULL ||
1147 wpa_s->last_scan_res_used == 0)
1148 return NULL; /* no scan results from last update */
1150 if (wpa_s->next_ssid) {
1151 /* check that next_ssid is still valid */
1152 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1153 if (ssid == wpa_s->next_ssid)
1157 wpa_s->next_ssid = NULL;
1160 while (selected == NULL) {
1161 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1162 if (next_ssid && next_ssid->priority ==
1163 wpa_s->conf->pssid[prio]->priority) {
1164 selected = wpa_supplicant_select_bss(
1165 wpa_s, next_ssid, selected_ssid, 1);
1169 selected = wpa_supplicant_select_bss(
1170 wpa_s, wpa_s->conf->pssid[prio],
1176 if (selected == NULL && wpa_s->blacklist &&
1177 !wpa_s->countermeasures) {
1178 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
1179 "blacklist and try again");
1180 wpa_blacklist_clear(wpa_s);
1181 wpa_s->blacklist_cleared++;
1182 } else if (selected == NULL)
1186 ssid = *selected_ssid;
1187 if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set &&
1188 !ssid->passphrase && !ssid->ext_psk) {
1189 const char *field_name, *txt = NULL;
1191 wpa_dbg(wpa_s, MSG_DEBUG,
1192 "PSK/passphrase not yet available for the selected network");
1194 wpas_notify_network_request(wpa_s, ssid,
1195 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL);
1197 field_name = wpa_supplicant_ctrl_req_to_string(
1198 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt);
1199 if (field_name == NULL)
1202 wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
1211 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
1212 int timeout_sec, int timeout_usec)
1214 if (!wpa_supplicant_enabled_networks(wpa_s)) {
1216 * No networks are enabled; short-circuit request so
1217 * we don't wait timeout seconds before transitioning
1218 * to INACTIVE state.
1220 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1221 "since there are no enabled networks");
1222 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1226 wpa_s->scan_for_connection = 1;
1227 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
1231 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
1232 struct wpa_bss *selected,
1233 struct wpa_ssid *ssid)
1235 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
1236 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
1237 "PBC session overlap");
1238 wpas_notify_wps_event_pbc_overlap(wpa_s);
1240 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
1241 wpa_s->p2p_in_provisioning) {
1242 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
1246 #endif /* CONFIG_P2P */
1249 wpas_wps_pbc_overlap(wpa_s);
1250 wpas_wps_cancel(wpa_s);
1251 #endif /* CONFIG_WPS */
1255 wpa_msg(wpa_s, MSG_DEBUG,
1256 "Considering connect request: reassociate: %d selected: "
1257 MACSTR " bssid: " MACSTR " pending: " MACSTR
1258 " wpa_state: %s ssid=%p current_ssid=%p",
1259 wpa_s->reassociate, MAC2STR(selected->bssid),
1260 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
1261 wpa_supplicant_state_txt(wpa_s->wpa_state),
1262 ssid, wpa_s->current_ssid);
1265 * Do not trigger new association unless the BSSID has changed or if
1266 * reassociation is requested. If we are in process of associating with
1267 * the selected BSSID, do not trigger new attempt.
1269 if (wpa_s->reassociate ||
1270 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
1271 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
1272 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
1273 (!is_zero_ether_addr(wpa_s->pending_bssid) &&
1274 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
1276 (is_zero_ether_addr(wpa_s->pending_bssid) &&
1277 ssid != wpa_s->current_ssid)))) {
1278 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
1279 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
1282 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
1283 MAC2STR(selected->bssid));
1284 wpa_supplicant_associate(wpa_s, selected, ssid);
1286 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
1287 "connect with the selected AP");
1294 static struct wpa_ssid *
1295 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
1298 struct wpa_ssid *ssid;
1300 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1301 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
1303 if (wpas_network_disabled(wpa_s, ssid))
1305 if (ssid->mode == IEEE80211_MODE_IBSS ||
1306 ssid->mode == IEEE80211_MODE_AP ||
1307 ssid->mode == IEEE80211_MODE_MESH)
1315 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
1316 * on BSS added and BSS changed events */
1317 static void wpa_supplicant_rsn_preauth_scan_results(
1318 struct wpa_supplicant *wpa_s)
1320 struct wpa_bss *bss;
1322 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
1325 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1326 const u8 *ssid, *rsn;
1328 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
1332 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1336 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
1342 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
1343 struct wpa_bss *selected,
1344 struct wpa_ssid *ssid)
1346 struct wpa_bss *current_bss = NULL;
1347 #ifndef CONFIG_NO_ROAMING
1349 #endif /* CONFIG_NO_ROAMING */
1351 if (wpa_s->reassociate)
1352 return 1; /* explicit request to reassociate */
1353 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1354 return 1; /* we are not associated; continue */
1355 if (wpa_s->current_ssid == NULL)
1356 return 1; /* unknown current SSID */
1357 if (wpa_s->current_ssid != ssid)
1358 return 1; /* different network block */
1360 if (wpas_driver_bss_selection(wpa_s))
1361 return 0; /* Driver-based roaming */
1363 if (wpa_s->current_ssid->ssid)
1364 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
1365 wpa_s->current_ssid->ssid,
1366 wpa_s->current_ssid->ssid_len);
1368 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
1371 return 1; /* current BSS not seen in scan results */
1373 if (current_bss == selected)
1376 if (selected->last_update_idx > current_bss->last_update_idx)
1377 return 1; /* current BSS not seen in the last scan */
1379 #ifndef CONFIG_NO_ROAMING
1380 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1381 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR
1382 " level=%d snr=%d est_throughput=%u",
1383 MAC2STR(current_bss->bssid), current_bss->level,
1384 current_bss->snr, current_bss->est_throughput);
1385 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR
1386 " level=%d snr=%d est_throughput=%u",
1387 MAC2STR(selected->bssid), selected->level,
1388 selected->snr, selected->est_throughput);
1390 if (wpa_s->current_ssid->bssid_set &&
1391 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1393 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1394 "has preferred BSSID");
1398 if (selected->est_throughput > current_bss->est_throughput + 5000) {
1399 wpa_dbg(wpa_s, MSG_DEBUG,
1400 "Allow reassociation - selected BSS has better estimated throughput");
1404 if (current_bss->level < 0 && current_bss->level > selected->level) {
1405 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1411 if (current_bss->level < 0) {
1412 if (current_bss->level < -85)
1414 else if (current_bss->level < -80)
1416 else if (current_bss->level < -75)
1418 else if (current_bss->level < -70)
1423 if (abs(current_bss->level - selected->level) < min_diff) {
1424 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
1430 #else /* CONFIG_NO_ROAMING */
1432 #endif /* CONFIG_NO_ROAMING */
1436 /* Return != 0 if no scan results could be fetched or if scan results should not
1437 * be shared with other virtual interfaces. */
1438 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1439 union wpa_event_data *data,
1442 struct wpa_scan_results *scan_res = NULL;
1445 #ifndef CONFIG_NO_RANDOM_POOL
1447 #endif /* CONFIG_NO_RANDOM_POOL */
1450 if (wpa_s->ap_iface)
1452 #endif /* CONFIG_AP */
1454 wpa_supplicant_notify_scanning(wpa_s, 0);
1456 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1457 data ? &data->scan_info :
1459 if (scan_res == NULL) {
1460 if (wpa_s->conf->ap_scan == 2 || ap ||
1461 wpa_s->scan_res_handler == scan_only_handler)
1465 if (data && data->scan_info.external_scan)
1467 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1469 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1471 goto scan_work_done;
1474 #ifndef CONFIG_NO_RANDOM_POOL
1475 num = scan_res->num;
1478 for (i = 0; i < num; i++) {
1480 struct wpa_scan_res *res = scan_res->res[i];
1481 buf[0] = res->bssid[5];
1482 buf[1] = res->qual & 0xff;
1483 buf[2] = res->noise & 0xff;
1484 buf[3] = res->level & 0xff;
1485 buf[4] = res->tsf & 0xff;
1486 random_add_randomness(buf, sizeof(buf));
1488 #endif /* CONFIG_NO_RANDOM_POOL */
1490 if (own_request && wpa_s->scan_res_handler &&
1491 !(data && data->scan_info.external_scan)) {
1492 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1493 struct wpa_scan_results *scan_res);
1495 scan_res_handler = wpa_s->scan_res_handler;
1496 wpa_s->scan_res_handler = NULL;
1497 scan_res_handler(wpa_s, scan_res);
1499 goto scan_work_done;
1503 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
1505 if (wpa_s->ap_iface->scan_cb)
1506 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1507 #endif /* CONFIG_AP */
1508 goto scan_work_done;
1511 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
1512 wpa_s->own_scan_running,
1513 data ? data->scan_info.external_scan : 0);
1514 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
1515 wpa_s->manual_scan_use_id && wpa_s->own_scan_running &&
1516 own_request && !(data && data->scan_info.external_scan)) {
1517 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
1518 wpa_s->manual_scan_id);
1519 wpa_s->manual_scan_use_id = 0;
1521 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1523 wpas_notify_scan_results(wpa_s);
1525 wpas_notify_scan_done(wpa_s, 1);
1527 if (data && data->scan_info.external_scan) {
1528 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
1529 wpa_scan_results_free(scan_res);
1533 if (wnm_scan_process(wpa_s, 1) > 0)
1534 goto scan_work_done;
1536 if (sme_proc_obss_scan(wpa_s) > 0)
1537 goto scan_work_done;
1539 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
1540 goto scan_work_done;
1542 if (autoscan_notify_scan(wpa_s, scan_res))
1543 goto scan_work_done;
1545 if (wpa_s->disconnected) {
1546 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1547 goto scan_work_done;
1550 if (!wpas_driver_bss_selection(wpa_s) &&
1551 bgscan_notify_scan(wpa_s, scan_res) == 1)
1552 goto scan_work_done;
1554 wpas_wps_update_ap_info(wpa_s, scan_res);
1556 if (wpa_s->wpa_state >= WPA_AUTHENTICATING &&
1557 wpa_s->wpa_state < WPA_COMPLETED)
1558 goto scan_work_done;
1560 wpa_scan_results_free(scan_res);
1562 if (own_request && wpa_s->scan_work) {
1563 struct wpa_radio_work *work = wpa_s->scan_work;
1564 wpa_s->scan_work = NULL;
1565 radio_work_done(work);
1568 return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
1571 wpa_scan_results_free(scan_res);
1572 if (own_request && wpa_s->scan_work) {
1573 struct wpa_radio_work *work = wpa_s->scan_work;
1574 wpa_s->scan_work = NULL;
1575 radio_work_done(work);
1581 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
1582 int new_scan, int own_request)
1584 struct wpa_bss *selected;
1585 struct wpa_ssid *ssid = NULL;
1586 int time_to_reenable = wpas_reenabled_network_time(wpa_s);
1588 if (time_to_reenable > 0) {
1589 wpa_dbg(wpa_s, MSG_DEBUG,
1590 "Postpone network selection by %d seconds since all networks are disabled",
1592 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
1593 eloop_register_timeout(time_to_reenable, 0,
1594 wpas_network_reenabled, wpa_s, NULL);
1598 if (wpa_s->p2p_mgmt)
1599 return 0; /* no normal connection on p2p_mgmt interface */
1601 selected = wpa_supplicant_pick_network(wpa_s, &ssid);
1605 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
1608 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1612 if (ssid != wpa_s->current_ssid &&
1613 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1614 wpa_s->own_disconnect_req = 1;
1615 wpa_supplicant_deauthenticate(
1616 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1619 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1620 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1624 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1626 * Do not notify other virtual radios of scan results since we do not
1627 * want them to start other associations at the same time.
1633 wpa_msg(wpa_s, MSG_INFO,
1634 "Avoiding join because we already joined a mesh group");
1637 #endif /* CONFIG_MESH */
1638 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
1639 ssid = wpa_supplicant_pick_new_network(wpa_s);
1641 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
1642 wpa_supplicant_associate(wpa_s, NULL, ssid);
1644 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1645 } else if (own_request) {
1647 * No SSID found. If SCAN results are as a result of
1648 * own scan request and not due to a scan request on
1649 * another shared interface, try another scan.
1651 int timeout_sec = wpa_s->scan_interval;
1652 int timeout_usec = 0;
1656 res = wpas_p2p_scan_no_go_seen(wpa_s);
1662 if (wpa_s->p2p_in_provisioning ||
1663 wpa_s->show_group_started ||
1664 wpa_s->p2p_in_invitation) {
1666 * Use shorter wait during P2P Provisioning
1667 * state and during P2P join-a-group operation
1668 * to speed up group formation.
1671 timeout_usec = 250000;
1672 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1676 #endif /* CONFIG_P2P */
1677 #ifdef CONFIG_INTERWORKING
1678 if (wpa_s->conf->auto_interworking &&
1679 wpa_s->conf->interworking &&
1680 wpa_s->conf->cred) {
1681 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
1682 "start ANQP fetch since no matching "
1684 wpa_s->network_select = 1;
1685 wpa_s->auto_network_select = 1;
1686 interworking_start_fetch_anqp(wpa_s);
1689 #endif /* CONFIG_INTERWORKING */
1691 if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
1692 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
1694 timeout_usec = 500000;
1695 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1699 #endif /* CONFIG_WPS */
1700 if (wpa_supplicant_req_sched_scan(wpa_s))
1701 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1704 wpa_msg_ctrl(wpa_s, MSG_INFO,
1705 WPA_EVENT_NETWORK_NOT_FOUND);
1712 static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1713 union wpa_event_data *data)
1715 struct wpa_supplicant *ifs;
1718 res = _wpa_supplicant_event_scan_results(wpa_s, data, 1);
1721 * Interface may have been removed, so must not dereference
1728 * If no scan results could be fetched, then no need to
1729 * notify those interfaces that did not actually request
1730 * this scan. Similarly, if scan results started a new operation on this
1731 * interface, do not notify other interfaces to avoid concurrent
1732 * operations during a connection attempt.
1738 * Check other interfaces to see if they share the same radio. If
1739 * so, they get updated with this same scan info.
1741 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
1744 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1745 "sibling", ifs->ifname);
1746 _wpa_supplicant_event_scan_results(ifs, data, 0);
1753 #endif /* CONFIG_NO_SCAN_PROCESSING */
1756 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
1758 #ifdef CONFIG_NO_SCAN_PROCESSING
1760 #else /* CONFIG_NO_SCAN_PROCESSING */
1761 struct os_reltime now;
1763 if (wpa_s->last_scan_res_used == 0)
1766 os_get_reltime(&now);
1767 if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) {
1768 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
1772 return wpas_select_network_from_last_scan(wpa_s, 0, 1);
1773 #endif /* CONFIG_NO_SCAN_PROCESSING */
1778 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
1780 struct wpa_supplicant *wpa_s = eloop_ctx;
1782 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1785 if (!wpa_s->no_keep_alive) {
1786 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1787 MAC2STR(wpa_s->bssid));
1788 /* TODO: could skip this if normal data traffic has been sent */
1789 /* TODO: Consider using some more appropriate data frame for
1792 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
1797 if (wpa_s->sme.bss_max_idle_period) {
1799 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1802 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1803 wnm_bss_keep_alive, wpa_s, NULL);
1805 #endif /* CONFIG_SME */
1809 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1810 const u8 *ies, size_t ies_len)
1812 struct ieee802_11_elems elems;
1817 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1821 if (elems.bss_max_idle_period) {
1823 wpa_s->sme.bss_max_idle_period =
1824 WPA_GET_LE16(elems.bss_max_idle_period);
1825 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1826 "TU)%s", wpa_s->sme.bss_max_idle_period,
1827 (elems.bss_max_idle_period[2] & 0x01) ?
1828 " (protected keep-live required)" : "");
1829 if (wpa_s->sme.bss_max_idle_period == 0)
1830 wpa_s->sme.bss_max_idle_period = 1;
1831 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1832 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1833 /* msec times 1000 */
1834 msec = wpa_s->sme.bss_max_idle_period * 1024;
1837 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1838 wnm_bss_keep_alive, wpa_s,
1842 #endif /* CONFIG_SME */
1845 #endif /* CONFIG_WNM */
1848 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1851 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1852 #endif /* CONFIG_WNM */
1856 #ifdef CONFIG_INTERWORKING
1858 static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
1863 wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
1864 res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
1866 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
1873 static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
1874 const u8 *ies, size_t ies_len)
1876 struct ieee802_11_elems elems;
1881 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1884 if (elems.qos_map_set) {
1885 wpas_qos_map_set(wpa_s, elems.qos_map_set,
1886 elems.qos_map_set_len);
1890 #endif /* CONFIG_INTERWORKING */
1894 static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s,
1895 const u8 *ie, size_t ie_len)
1897 struct mb_ies_info mb_ies;
1899 if (!ie || !ie_len || !wpa_s->fst)
1902 os_memset(&mb_ies, 0, sizeof(mb_ies));
1904 while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) {
1909 wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found",
1914 if (ie[0] == WLAN_EID_MULTI_BAND) {
1915 wpa_printf(MSG_DEBUG, "MB IE of %u bytes found",
1916 (unsigned int) len);
1917 mb_ies.ies[mb_ies.nof_ies].ie = ie + 2;
1918 mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2;
1926 if (mb_ies.nof_ies > 0) {
1927 wpabuf_free(wpa_s->received_mb_ies);
1928 wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies);
1934 #endif /* CONFIG_FST */
1937 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1938 union wpa_event_data *data)
1940 int l, len, found = 0, wpa_found, rsn_found;
1942 #ifdef CONFIG_IEEE80211R
1944 #endif /* CONFIG_IEEE80211R */
1946 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
1947 if (data->assoc_info.req_ies)
1948 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1949 data->assoc_info.req_ies_len);
1950 if (data->assoc_info.resp_ies) {
1951 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1952 data->assoc_info.resp_ies_len);
1954 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1955 data->assoc_info.resp_ies_len);
1956 #endif /* CONFIG_TDLS */
1958 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1959 data->assoc_info.resp_ies_len);
1960 #endif /* CONFIG_WNM */
1961 #ifdef CONFIG_INTERWORKING
1962 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1963 data->assoc_info.resp_ies_len);
1964 #endif /* CONFIG_INTERWORKING */
1966 if (data->assoc_info.beacon_ies)
1967 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1968 data->assoc_info.beacon_ies,
1969 data->assoc_info.beacon_ies_len);
1970 if (data->assoc_info.freq)
1971 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1972 data->assoc_info.freq);
1974 p = data->assoc_info.req_ies;
1975 l = data->assoc_info.req_ies_len;
1977 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1978 while (p && l >= 2) {
1981 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1985 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1986 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1987 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1988 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1991 wpa_find_assoc_pmkid(wpa_s);
1997 if (!found && data->assoc_info.req_ies)
1998 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
2000 #ifdef CONFIG_IEEE80211R
2002 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
2003 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2004 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2005 data->assoc_info.resp_ies,
2006 data->assoc_info.resp_ies_len,
2008 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2009 "Reassociation Response failed");
2010 wpa_supplicant_deauthenticate(
2011 wpa_s, WLAN_REASON_INVALID_IE);
2016 p = data->assoc_info.resp_ies;
2017 l = data->assoc_info.resp_ies_len;
2019 #ifdef CONFIG_WPS_STRICT
2020 if (p && wpa_s->current_ssid &&
2021 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
2023 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
2025 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
2026 "include WPS IE in (Re)Association Response");
2030 if (wps_validate_assoc_resp(wps) < 0) {
2032 wpa_supplicant_deauthenticate(
2033 wpa_s, WLAN_REASON_INVALID_IE);
2038 #endif /* CONFIG_WPS_STRICT */
2040 /* Go through the IEs and make a copy of the MDIE, if present. */
2041 while (p && l >= 2) {
2044 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2048 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
2049 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
2050 wpa_s->sme.ft_used = 1;
2051 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
2052 MOBILITY_DOMAIN_ID_LEN);
2058 #endif /* CONFIG_SME */
2060 /* Process FT when SME is in the driver */
2061 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
2062 wpa_ft_is_completed(wpa_s->wpa)) {
2063 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2064 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2065 data->assoc_info.resp_ies,
2066 data->assoc_info.resp_ies_len,
2068 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2069 "Reassociation Response failed");
2070 wpa_supplicant_deauthenticate(
2071 wpa_s, WLAN_REASON_INVALID_IE);
2074 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
2077 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
2078 data->assoc_info.resp_ies_len);
2079 #endif /* CONFIG_IEEE80211R */
2081 /* WPA/RSN IE from Beacon/ProbeResp */
2082 p = data->assoc_info.beacon_ies;
2083 l = data->assoc_info.beacon_ies_len;
2085 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
2087 wpa_found = rsn_found = 0;
2088 while (p && l >= 2) {
2091 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
2096 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2097 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
2099 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
2103 p[0] == WLAN_EID_RSN && p[1] >= 2) {
2105 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
2112 if (!wpa_found && data->assoc_info.beacon_ies)
2113 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
2114 if (!rsn_found && data->assoc_info.beacon_ies)
2115 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
2116 if (wpa_found || rsn_found)
2117 wpa_s->ap_ies_from_associnfo = 1;
2119 if (wpa_s->assoc_freq && data->assoc_info.freq &&
2120 wpa_s->assoc_freq != data->assoc_info.freq) {
2121 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
2123 wpa_s->assoc_freq, data->assoc_info.freq);
2124 wpa_supplicant_update_scan_results(wpa_s);
2127 wpa_s->assoc_freq = data->assoc_info.freq;
2133 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
2135 const u8 *bss_wpa = NULL, *bss_rsn = NULL;
2137 if (!wpa_s->current_bss || !wpa_s->current_ssid)
2140 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
2143 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
2144 WPA_IE_VENDOR_TYPE);
2145 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
2147 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
2148 bss_wpa ? 2 + bss_wpa[1] : 0) ||
2149 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
2150 bss_rsn ? 2 + bss_rsn[1] : 0))
2157 static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s,
2158 union wpa_event_data *data)
2161 struct assoc_info *ai = data ? &data->assoc_info : NULL;
2162 struct wpa_bss *bss = wpa_s->current_bss;
2163 const u8 *ieprb, *iebcn;
2165 wpabuf_free(wpa_s->received_mb_ies);
2166 wpa_s->received_mb_ies = NULL;
2169 !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) {
2170 wpa_printf(MSG_DEBUG,
2171 "FST: MB IEs updated from Association Response frame");
2176 !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) {
2177 wpa_printf(MSG_DEBUG,
2178 "FST: MB IEs updated from association event Beacon IEs");
2185 ieprb = (const u8 *) (bss + 1);
2186 iebcn = ieprb + bss->ie_len;
2188 if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len))
2189 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE");
2190 else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len))
2191 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE");
2192 #endif /* CONFIG_FST */
2196 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
2197 union wpa_event_data *data)
2204 if (wpa_s->ap_iface) {
2207 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
2208 data->assoc_info.addr,
2209 data->assoc_info.req_ies,
2210 data->assoc_info.req_ies_len,
2211 data->assoc_info.reassoc);
2214 #endif /* CONFIG_AP */
2216 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
2218 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
2219 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
2222 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
2223 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
2224 wpa_supplicant_deauthenticate(
2225 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2229 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
2230 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
2231 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
2232 MACSTR, MAC2STR(bssid));
2234 random_add_randomness(bssid, ETH_ALEN);
2235 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
2236 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
2237 wpas_notify_bssid_changed(wpa_s);
2239 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
2240 wpa_clear_keys(wpa_s, bssid);
2242 if (wpa_supplicant_select_config(wpa_s) < 0) {
2243 wpa_supplicant_deauthenticate(
2244 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2249 if (wpa_s->conf->ap_scan == 1 &&
2250 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
2251 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss)
2252 wpa_msg(wpa_s, MSG_WARNING,
2253 "WPA/RSN IEs not updated");
2256 wpas_fst_update_mb_assoc(wpa_s, data);
2259 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
2260 wpa_s->sme.prev_bssid_set = 1;
2261 wpa_s->sme.last_unprot_disconnect.sec = 0;
2262 #endif /* CONFIG_SME */
2264 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
2265 if (wpa_s->current_ssid) {
2266 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
2267 * initialized before association, but for other modes,
2268 * initialize PC/SC here, if the current configuration needs
2269 * smartcard or SIM/USIM. */
2270 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
2272 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
2274 l2_packet_notify_auth_start(wpa_s->l2);
2277 * Set portEnabled first to FALSE in order to get EAP state machine out
2278 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
2279 * state machine may transit to AUTHENTICATING state based on obsolete
2280 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
2281 * AUTHENTICATED without ever giving chance to EAP state machine to
2284 if (!ft_completed) {
2285 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
2286 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
2288 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
2289 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
2290 /* 802.1X::portControl = Auto */
2291 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
2292 wpa_s->eapol_received = 0;
2293 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2294 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
2295 (wpa_s->current_ssid &&
2296 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
2297 if (wpa_s->current_ssid &&
2298 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
2300 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2302 * Set the key after having received joined-IBSS event
2305 wpa_supplicant_set_wpa_none_key(wpa_s,
2306 wpa_s->current_ssid);
2308 wpa_supplicant_cancel_auth_timeout(wpa_s);
2309 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2310 } else if (!ft_completed) {
2311 /* Timeout for receiving the first EAPOL packet */
2312 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
2314 wpa_supplicant_cancel_scan(wpa_s);
2316 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2317 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
2319 * We are done; the driver will take care of RSN 4-way
2322 wpa_supplicant_cancel_auth_timeout(wpa_s);
2323 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2324 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2325 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2326 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2327 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
2329 * The driver will take care of RSN 4-way handshake, so we need
2330 * to allow EAPOL supplicant to complete its work without
2331 * waiting for WPA supplicant.
2333 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2334 } else if (ft_completed) {
2336 * FT protocol completed - make sure EAPOL state machine ends
2337 * up in authenticated.
2339 wpa_supplicant_cancel_auth_timeout(wpa_s);
2340 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2341 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2342 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2345 wpa_s->last_eapol_matches_bssid = 0;
2347 if (wpa_s->pending_eapol_rx) {
2348 struct os_reltime now, age;
2349 os_get_reltime(&now);
2350 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
2351 if (age.sec == 0 && age.usec < 100000 &&
2352 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
2354 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
2355 "frame that was received just before "
2356 "association notification");
2357 wpa_supplicant_rx_eapol(
2358 wpa_s, wpa_s->pending_eapol_rx_src,
2359 wpabuf_head(wpa_s->pending_eapol_rx),
2360 wpabuf_len(wpa_s->pending_eapol_rx));
2362 wpabuf_free(wpa_s->pending_eapol_rx);
2363 wpa_s->pending_eapol_rx = NULL;
2366 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2367 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
2368 wpa_s->current_ssid &&
2369 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2370 /* Set static WEP keys again */
2371 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
2374 #ifdef CONFIG_IBSS_RSN
2375 if (wpa_s->current_ssid &&
2376 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
2377 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
2378 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
2379 wpa_s->ibss_rsn == NULL) {
2380 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
2381 if (!wpa_s->ibss_rsn) {
2382 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
2383 wpa_supplicant_deauthenticate(
2384 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2388 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
2390 #endif /* CONFIG_IBSS_RSN */
2392 wpas_wps_notify_assoc(wpa_s, bssid);
2395 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
2396 data->assoc_info.resp_ies_len,
2397 &data->assoc_info.wmm_params);
2399 if (wpa_s->reassoc_same_bss)
2400 wmm_ac_restore_tspecs(wpa_s);
2405 static int disconnect_reason_recoverable(u16 reason_code)
2407 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
2408 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
2409 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
2413 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
2415 int locally_generated)
2419 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2421 * At least Host AP driver and a Prism3 card seemed to be
2422 * generating streams of disconnected events when configuring
2423 * IBSS for WPA-None. Ignore them for now.
2428 bssid = wpa_s->bssid;
2429 if (is_zero_ether_addr(bssid))
2430 bssid = wpa_s->pending_bssid;
2432 if (!is_zero_ether_addr(bssid) ||
2433 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2434 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
2436 MAC2STR(bssid), reason_code,
2437 locally_generated ? " locally_generated=1" : "");
2442 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
2443 int locally_generated)
2445 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
2446 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
2447 return 0; /* Not in 4-way handshake with PSK */
2450 * It looks like connection was lost while trying to go through PSK
2451 * 4-way handshake. Filter out known disconnection cases that are caused
2452 * by something else than PSK mismatch to avoid confusing reports.
2455 if (locally_generated) {
2456 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
2464 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
2466 int locally_generated)
2470 u8 prev_pending_bssid[ETH_ALEN];
2471 struct wpa_bss *fast_reconnect = NULL;
2472 struct wpa_ssid *fast_reconnect_ssid = NULL;
2473 struct wpa_ssid *last_ssid;
2475 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
2476 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
2478 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2480 * At least Host AP driver and a Prism3 card seemed to be
2481 * generating streams of disconnected events when configuring
2482 * IBSS for WPA-None. Ignore them for now.
2484 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
2485 "IBSS/WPA-None mode");
2489 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
2490 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
2491 "pre-shared key may be incorrect");
2492 if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
2493 return; /* P2P group removed */
2494 wpas_auth_failed(wpa_s, "WRONG_KEY");
2496 if (!wpa_s->disconnected &&
2497 (!wpa_s->auto_reconnect_disabled ||
2498 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
2499 wpas_wps_searching(wpa_s) ||
2500 wpas_wps_reenable_networks_pending(wpa_s))) {
2501 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
2502 "reconnect (wps=%d/%d wpa_state=%d)",
2503 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
2504 wpas_wps_searching(wpa_s),
2506 if (wpa_s->wpa_state == WPA_COMPLETED &&
2507 wpa_s->current_ssid &&
2508 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
2509 !locally_generated &&
2510 disconnect_reason_recoverable(reason_code)) {
2512 * It looks like the AP has dropped association with
2513 * us, but could allow us to get back in. Try to
2514 * reconnect to the same BSS without full scan to save
2515 * time for some common cases.
2517 fast_reconnect = wpa_s->current_bss;
2518 fast_reconnect_ssid = wpa_s->current_ssid;
2519 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
2520 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2522 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
2525 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
2526 "try to re-connect");
2527 wpa_s->reassociate = 0;
2528 wpa_s->disconnected = 1;
2530 wpa_supplicant_cancel_sched_scan(wpa_s);
2532 bssid = wpa_s->bssid;
2533 if (is_zero_ether_addr(bssid))
2534 bssid = wpa_s->pending_bssid;
2535 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2536 wpas_connection_failed(wpa_s, bssid);
2537 wpa_sm_notify_disassoc(wpa_s->wpa);
2538 if (locally_generated)
2539 wpa_s->disconnect_reason = -reason_code;
2541 wpa_s->disconnect_reason = reason_code;
2542 wpas_notify_disconnect_reason(wpa_s);
2543 if (wpa_supplicant_dynamic_keys(wpa_s)) {
2544 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
2545 wpa_clear_keys(wpa_s, wpa_s->bssid);
2547 last_ssid = wpa_s->current_ssid;
2548 wpa_supplicant_mark_disassoc(wpa_s);
2550 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
2551 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
2552 wpa_s->current_ssid = last_ssid;
2555 if (fast_reconnect &&
2556 !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
2557 !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
2558 !disallowed_ssid(wpa_s, fast_reconnect->ssid,
2559 fast_reconnect->ssid_len) &&
2560 !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) &&
2561 !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect->bssid)) {
2562 #ifndef CONFIG_NO_SCAN_PROCESSING
2563 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
2564 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
2565 fast_reconnect_ssid) < 0) {
2566 /* Recover through full scan */
2567 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2569 #endif /* CONFIG_NO_SCAN_PROCESSING */
2570 } else if (fast_reconnect) {
2572 * Could not reconnect to the same BSS due to network being
2573 * disabled. Use a new scan to match the alternative behavior
2574 * above, i.e., to continue automatic reconnection attempt in a
2575 * way that enforces disabled network rules.
2577 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2582 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2583 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
2585 struct wpa_supplicant *wpa_s = eloop_ctx;
2587 if (!wpa_s->pending_mic_error_report)
2590 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
2591 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
2592 wpa_s->pending_mic_error_report = 0;
2594 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2598 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
2599 union wpa_event_data *data)
2602 struct os_reltime t;
2604 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
2605 pairwise = (data && data->michael_mic_failure.unicast);
2607 if ((wpa_s->last_michael_mic_error.sec &&
2608 !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
2609 wpa_s->pending_mic_error_report) {
2610 if (wpa_s->pending_mic_error_report) {
2612 * Send the pending MIC error report immediately since
2613 * we are going to start countermeasures and AP better
2616 wpa_sm_key_request(wpa_s->wpa, 1,
2617 wpa_s->pending_mic_error_pairwise);
2620 /* Send the new MIC error report immediately since we are going
2621 * to start countermeasures and AP better do the same.
2623 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2625 /* initialize countermeasures */
2626 wpa_s->countermeasures = 1;
2628 wpa_blacklist_add(wpa_s, wpa_s->bssid);
2630 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
2633 * Need to wait for completion of request frame. We do not get
2634 * any callback for the message completion, so just wait a
2635 * short while and hope for the best. */
2638 wpa_drv_set_countermeasures(wpa_s, 1);
2639 wpa_supplicant_deauthenticate(wpa_s,
2640 WLAN_REASON_MICHAEL_MIC_FAILURE);
2641 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
2643 eloop_register_timeout(60, 0,
2644 wpa_supplicant_stop_countermeasures,
2646 /* TODO: mark the AP rejected for 60 second. STA is
2647 * allowed to associate with another AP.. */
2649 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2650 if (wpa_s->mic_errors_seen) {
2652 * Reduce the effectiveness of Michael MIC error
2653 * reports as a means for attacking against TKIP if
2654 * more than one MIC failure is noticed with the same
2655 * PTK. We delay the transmission of the reports by a
2656 * random time between 0 and 60 seconds in order to
2657 * force the attacker wait 60 seconds before getting
2658 * the information on whether a frame resulted in a MIC
2664 if (os_get_random(rval, sizeof(rval)) < 0)
2665 sec = os_random() % 60;
2667 sec = WPA_GET_BE32(rval) % 60;
2668 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
2669 "report %d seconds", sec);
2670 wpa_s->pending_mic_error_report = 1;
2671 wpa_s->pending_mic_error_pairwise = pairwise;
2672 eloop_cancel_timeout(
2673 wpa_supplicant_delayed_mic_error_report,
2675 eloop_register_timeout(
2676 sec, os_random() % 1000000,
2677 wpa_supplicant_delayed_mic_error_report,
2680 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2682 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2683 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2684 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2686 wpa_s->last_michael_mic_error = t;
2687 wpa_s->mic_errors_seen++;
2691 #ifdef CONFIG_TERMINATE_ONLASTIF
2692 static int any_interfaces(struct wpa_supplicant *head)
2694 struct wpa_supplicant *wpa_s;
2696 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
2697 if (!wpa_s->interface_removed)
2701 #endif /* CONFIG_TERMINATE_ONLASTIF */
2705 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
2706 union wpa_event_data *data)
2708 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
2711 switch (data->interface_status.ievent) {
2712 case EVENT_INTERFACE_ADDED:
2713 if (!wpa_s->interface_removed)
2715 wpa_s->interface_removed = 0;
2716 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
2717 if (wpa_supplicant_driver_init(wpa_s) < 0) {
2718 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
2719 "driver after interface was added");
2723 if (!wpa_s->global->p2p &&
2724 !wpa_s->global->p2p_disabled &&
2725 !wpa_s->conf->p2p_disabled &&
2727 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
2728 wpas_p2p_add_p2pdev_interface(
2729 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
2730 wpa_printf(MSG_INFO,
2731 "P2P: Failed to enable P2P Device interface");
2732 /* Try to continue without. P2P will be disabled. */
2734 #endif /* CONFIG_P2P */
2737 case EVENT_INTERFACE_REMOVED:
2738 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
2739 wpa_s->interface_removed = 1;
2740 wpa_supplicant_mark_disassoc(wpa_s);
2741 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2742 l2_packet_deinit(wpa_s->l2);
2746 if (wpa_s->global->p2p &&
2747 wpa_s->global->p2p_init_wpa_s->parent == wpa_s &&
2749 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) {
2750 wpa_dbg(wpa_s, MSG_DEBUG,
2751 "Removing P2P Device interface");
2752 wpa_supplicant_remove_iface(
2753 wpa_s->global, wpa_s->global->p2p_init_wpa_s,
2755 wpa_s->global->p2p_init_wpa_s = NULL;
2757 #endif /* CONFIG_P2P */
2759 #ifdef CONFIG_TERMINATE_ONLASTIF
2760 /* check if last interface */
2761 if (!any_interfaces(wpa_s->global->ifaces))
2763 #endif /* CONFIG_TERMINATE_ONLASTIF */
2769 #ifdef CONFIG_PEERKEY
2771 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2772 union wpa_event_data *data)
2776 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2778 #endif /* CONFIG_PEERKEY */
2782 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2783 union wpa_event_data *data)
2787 switch (data->tdls.oper) {
2788 case TDLS_REQUEST_SETUP:
2789 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
2790 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2791 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2793 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
2795 case TDLS_REQUEST_TEARDOWN:
2796 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2797 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
2798 data->tdls.reason_code);
2800 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
2803 case TDLS_REQUEST_DISCOVER:
2804 wpa_tdls_send_discovery_request(wpa_s->wpa,
2809 #endif /* CONFIG_TDLS */
2813 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
2814 union wpa_event_data *data)
2818 switch (data->wnm.oper) {
2819 case WNM_OPER_SLEEP:
2820 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
2821 "(action=%d, intval=%d)",
2822 data->wnm.sleep_action, data->wnm.sleep_intval);
2823 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
2824 data->wnm.sleep_intval, NULL);
2828 #endif /* CONFIG_WNM */
2831 #ifdef CONFIG_IEEE80211R
2833 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2834 union wpa_event_data *data)
2839 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2840 data->ft_ies.ies_len,
2841 data->ft_ies.ft_action,
2842 data->ft_ies.target_ap,
2843 data->ft_ies.ric_ies,
2844 data->ft_ies.ric_ies_len) < 0) {
2845 /* TODO: prevent MLME/driver from trying to associate? */
2848 #endif /* CONFIG_IEEE80211R */
2851 #ifdef CONFIG_IBSS_RSN
2852 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2853 union wpa_event_data *data)
2855 struct wpa_ssid *ssid;
2856 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2860 ssid = wpa_s->current_ssid;
2863 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2866 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2870 static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
2871 union wpa_event_data *data)
2873 struct wpa_ssid *ssid = wpa_s->current_ssid;
2878 /* check if the ssid is correctly configured as IBSS/RSN */
2879 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2882 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
2883 data->rx_mgmt.frame_len);
2885 #endif /* CONFIG_IBSS_RSN */
2888 #ifdef CONFIG_IEEE80211R
2889 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
2892 const u8 *sta_addr, *target_ap_addr;
2895 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
2896 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2897 return; /* only SME case supported for now */
2898 if (len < 1 + 2 * ETH_ALEN + 2)
2901 return; /* Only FT Action Response is supported for now */
2902 sta_addr = data + 1;
2903 target_ap_addr = data + 1 + ETH_ALEN;
2904 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
2905 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
2906 MACSTR " TargetAP " MACSTR " status %u",
2907 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
2909 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
2910 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
2911 " in FT Action Response", MAC2STR(sta_addr));
2916 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
2917 "failure (status code %d)", status);
2918 /* TODO: report error to FT code(?) */
2922 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
2923 len - (1 + 2 * ETH_ALEN + 2), 1,
2924 target_ap_addr, NULL, 0) < 0)
2929 struct wpa_bss *bss;
2930 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
2932 wpa_s->sme.freq = bss->freq;
2933 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
2934 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
2937 #endif /* CONFIG_SME */
2939 #endif /* CONFIG_IEEE80211R */
2942 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
2943 struct unprot_deauth *e)
2945 #ifdef CONFIG_IEEE80211W
2946 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
2947 "dropped: " MACSTR " -> " MACSTR
2948 " (reason code %u)",
2949 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2950 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2951 #endif /* CONFIG_IEEE80211W */
2955 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
2956 struct unprot_disassoc *e)
2958 #ifdef CONFIG_IEEE80211W
2959 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
2960 "dropped: " MACSTR " -> " MACSTR
2961 " (reason code %u)",
2962 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2963 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2964 #endif /* CONFIG_IEEE80211W */
2968 static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
2969 u16 reason_code, int locally_generated,
2970 const u8 *ie, size_t ie_len, int deauth)
2973 if (wpa_s->ap_iface && addr) {
2974 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
2978 if (wpa_s->ap_iface) {
2979 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
2982 #endif /* CONFIG_AP */
2984 if (!locally_generated)
2985 wpa_s->own_disconnect_req = 0;
2987 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
2989 if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
2990 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
2991 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
2992 eapol_sm_failed(wpa_s->eapol))) &&
2993 !wpa_s->eap_expected_failure))
2994 wpas_auth_failed(wpa_s, "AUTH_FAILED");
2997 if (deauth && reason_code > 0) {
2998 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
2999 locally_generated) > 0) {
3001 * The interface was removed, so cannot continue
3002 * processing any additional operations after this.
3007 #endif /* CONFIG_P2P */
3009 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
3014 static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
3015 struct disassoc_info *info)
3017 u16 reason_code = 0;
3018 int locally_generated = 0;
3019 const u8 *addr = NULL;
3020 const u8 *ie = NULL;
3023 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
3028 ie_len = info->ie_len;
3029 reason_code = info->reason_code;
3030 locally_generated = info->locally_generated;
3031 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code,
3032 locally_generated ? " (locally generated)" : "");
3034 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3036 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
3041 if (wpa_s->ap_iface && info && info->addr) {
3042 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
3046 if (wpa_s->ap_iface) {
3047 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
3050 #endif /* CONFIG_AP */
3054 wpas_p2p_disassoc_notif(
3055 wpa_s, info->addr, reason_code, info->ie, info->ie_len,
3058 #endif /* CONFIG_P2P */
3060 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3061 sme_event_disassoc(wpa_s, info);
3063 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
3068 static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
3069 struct deauth_info *info)
3071 u16 reason_code = 0;
3072 int locally_generated = 0;
3073 const u8 *addr = NULL;
3074 const u8 *ie = NULL;
3077 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
3082 ie_len = info->ie_len;
3083 reason_code = info->reason_code;
3084 locally_generated = info->locally_generated;
3085 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
3087 locally_generated ? " (locally generated)" : "");
3089 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3092 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
3096 wpa_reset_ft_completed(wpa_s->wpa);
3098 wpas_event_disconnect(wpa_s, addr, reason_code,
3099 locally_generated, ie, ie_len, 1);
3103 static const char * reg_init_str(enum reg_change_initiator init)
3106 case REGDOM_SET_BY_CORE:
3108 case REGDOM_SET_BY_USER:
3110 case REGDOM_SET_BY_DRIVER:
3112 case REGDOM_SET_BY_COUNTRY_IE:
3113 return "COUNTRY_IE";
3114 case REGDOM_BEACON_HINT:
3115 return "BEACON_HINT";
3121 static const char * reg_type_str(enum reg_type type)
3124 case REGDOM_TYPE_UNKNOWN:
3126 case REGDOM_TYPE_COUNTRY:
3128 case REGDOM_TYPE_WORLD:
3130 case REGDOM_TYPE_CUSTOM_WORLD:
3131 return "CUSTOM_WORLD";
3132 case REGDOM_TYPE_INTERSECTION:
3133 return "INTERSECTION";
3139 static void wpa_supplicant_update_channel_list(
3140 struct wpa_supplicant *wpa_s, struct channel_list_changed *info)
3142 struct wpa_supplicant *ifs;
3144 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
3145 reg_init_str(info->initiator), reg_type_str(info->type),
3146 info->alpha2[0] ? " alpha2=" : "",
3147 info->alpha2[0] ? info->alpha2 : "");
3149 if (wpa_s->drv_priv == NULL)
3150 return; /* Ignore event during drv initialization */
3152 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
3154 wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
3156 free_hw_features(ifs);
3157 ifs->hw.modes = wpa_drv_get_hw_feature_data(
3158 ifs, &ifs->hw.num_modes, &ifs->hw.flags);
3161 /* Restart sched_scan with updated channel list */
3162 if (wpa_s->sched_scanning) {
3163 wpa_dbg(wpa_s, MSG_DEBUG,
3164 "Channel list changed restart sched scan.");
3165 wpa_supplicant_cancel_sched_scan(wpa_s);
3166 wpa_supplicant_req_scan(wpa_s, 0, 0);
3169 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER);
3173 static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
3174 const u8 *frame, size_t len, int freq,
3177 const struct ieee80211_mgmt *mgmt;
3182 if (len < IEEE80211_HDRLEN + 2)
3185 mgmt = (const struct ieee80211_mgmt *) frame;
3186 payload = frame + IEEE80211_HDRLEN;
3187 category = *payload++;
3188 plen = len - IEEE80211_HDRLEN - 1;
3190 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
3191 " Category=%u DataLen=%d freq=%d MHz",
3192 MAC2STR(mgmt->sa), category, (int) plen, freq);
3194 if (category == WLAN_ACTION_WMM) {
3195 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
3199 #ifdef CONFIG_IEEE80211R
3200 if (category == WLAN_ACTION_FT) {
3201 ft_rx_action(wpa_s, payload, plen);
3204 #endif /* CONFIG_IEEE80211R */
3206 #ifdef CONFIG_IEEE80211W
3208 if (category == WLAN_ACTION_SA_QUERY) {
3209 sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen);
3212 #endif /* CONFIG_SME */
3213 #endif /* CONFIG_IEEE80211W */
3216 if (mgmt->u.action.category == WLAN_ACTION_WNM) {
3217 ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
3220 #endif /* CONFIG_WNM */
3223 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
3224 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
3225 gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
3226 mgmt->u.action.category,
3227 payload, plen, freq) == 0)
3229 #endif /* CONFIG_GAS */
3232 if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
3233 payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
3234 wpa_dbg(wpa_s, MSG_DEBUG,
3235 "TDLS: Received Discovery Response from " MACSTR,
3239 #endif /* CONFIG_TDLS */
3241 #ifdef CONFIG_INTERWORKING
3242 if (category == WLAN_ACTION_QOS && plen >= 1 &&
3243 payload[0] == QOS_QOS_MAP_CONFIG) {
3244 const u8 *pos = payload + 1;
3245 size_t qlen = plen - 1;
3246 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
3247 MACSTR, MAC2STR(mgmt->sa));
3248 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
3249 qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
3250 pos[1] <= qlen - 2 && pos[1] >= 16)
3251 wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
3254 #endif /* CONFIG_INTERWORKING */
3256 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3257 payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
3258 wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
3262 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3263 payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
3264 wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
3265 payload + 1, plen - 1,
3271 if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) {
3272 fst_rx_action(wpa_s->fst, mgmt, len);
3275 #endif /* CONFIG_FST */
3277 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
3278 category, payload, plen, freq);
3280 mesh_mpm_action_rx(wpa_s, mgmt, len);
3284 static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
3285 union wpa_event_data *event)
3287 struct wpa_freq_range_list *list;
3290 list = &event->freq_range;
3293 str = freq_range_list_str(list);
3294 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
3298 if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
3299 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
3302 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
3305 * The update channel flow will also take care of moving a GO
3306 * from the unsafe frequency if needed.
3308 wpas_p2p_update_channel_list(wpa_s,
3309 WPAS_P2P_CHANNEL_UPDATE_AVOID);
3311 #endif /* CONFIG_P2P */
3317 static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
3318 union wpa_event_data *data)
3320 wpa_dbg(wpa_s, MSG_DEBUG,
3321 "Connection authorized by device, previous state %d",
3323 if (wpa_s->wpa_state == WPA_ASSOCIATED) {
3324 wpa_supplicant_cancel_auth_timeout(wpa_s);
3325 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3326 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
3327 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
3329 wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
3330 wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
3331 data->assoc_info.ptk_kck_len,
3332 data->assoc_info.ptk_kek,
3333 data->assoc_info.ptk_kek_len);
3337 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
3338 union wpa_event_data *data)
3340 struct wpa_supplicant *wpa_s = ctx;
3343 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
3344 event != EVENT_INTERFACE_ENABLED &&
3345 event != EVENT_INTERFACE_STATUS &&
3346 event != EVENT_SCHED_SCAN_STOPPED) {
3347 wpa_dbg(wpa_s, MSG_DEBUG,
3348 "Ignore event %s (%d) while interface is disabled",
3349 event_to_string(event), event);
3353 #ifndef CONFIG_NO_STDOUT_DEBUG
3355 int level = MSG_DEBUG;
3357 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
3358 const struct ieee80211_hdr *hdr;
3360 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
3361 fc = le_to_host16(hdr->frame_control);
3362 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3363 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
3364 level = MSG_EXCESSIVE;
3367 wpa_dbg(wpa_s, level, "Event %s (%d) received",
3368 event_to_string(event), event);
3370 #endif /* CONFIG_NO_STDOUT_DEBUG */
3375 if (!wpas_fst_update_mbie(wpa_s, data->auth.ies,
3376 data->auth.ies_len))
3377 wpa_printf(MSG_DEBUG,
3378 "FST: MB IEs updated from auth IE");
3379 #endif /* CONFIG_FST */
3380 sme_event_auth(wpa_s, data);
3383 wpa_supplicant_event_assoc(wpa_s, data);
3384 if (data && data->assoc_info.authorized)
3385 wpa_supplicant_event_assoc_auth(wpa_s, data);
3387 wpa_msg(wpa_s, MSG_INFO,
3388 WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u",
3389 data->assoc_info.subnet_status);
3392 case EVENT_DISASSOC:
3393 wpas_event_disassoc(wpa_s,
3394 data ? &data->disassoc_info : NULL);
3397 wpas_event_deauth(wpa_s,
3398 data ? &data->deauth_info : NULL);
3400 case EVENT_MICHAEL_MIC_FAILURE:
3401 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
3403 #ifndef CONFIG_NO_SCAN_PROCESSING
3404 case EVENT_SCAN_STARTED:
3405 if (wpa_s->own_scan_requested ||
3406 (data && !data->scan_info.external_scan)) {
3407 struct os_reltime diff;
3409 os_get_reltime(&wpa_s->scan_start_time);
3410 os_reltime_sub(&wpa_s->scan_start_time,
3411 &wpa_s->scan_trigger_time, &diff);
3412 wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
3413 diff.sec, diff.usec);
3414 wpa_s->own_scan_requested = 0;
3415 wpa_s->own_scan_running = 1;
3416 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
3417 wpa_s->manual_scan_use_id) {
3418 wpa_msg_ctrl(wpa_s, MSG_INFO,
3419 WPA_EVENT_SCAN_STARTED "id=%u",
3420 wpa_s->manual_scan_id);
3422 wpa_msg_ctrl(wpa_s, MSG_INFO,
3423 WPA_EVENT_SCAN_STARTED);
3426 wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
3427 wpa_s->radio->external_scan_running = 1;
3428 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
3431 case EVENT_SCAN_RESULTS:
3432 if (!(data && data->scan_info.external_scan) &&
3433 os_reltime_initialized(&wpa_s->scan_start_time)) {
3434 struct os_reltime now, diff;
3435 os_get_reltime(&now);
3436 os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
3437 wpa_s->scan_start_time.sec = 0;
3438 wpa_s->scan_start_time.usec = 0;
3439 wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
3440 diff.sec, diff.usec);
3442 if (wpa_supplicant_event_scan_results(wpa_s, data))
3443 break; /* interface may have been removed */
3444 if (!(data && data->scan_info.external_scan))
3445 wpa_s->own_scan_running = 0;
3446 if (data && data->scan_info.nl_scan_event)
3447 wpa_s->radio->external_scan_running = 0;
3448 radio_work_check_next(wpa_s);
3450 #endif /* CONFIG_NO_SCAN_PROCESSING */
3451 case EVENT_ASSOCINFO:
3452 wpa_supplicant_event_associnfo(wpa_s, data);
3454 case EVENT_INTERFACE_STATUS:
3455 wpa_supplicant_event_interface_status(wpa_s, data);
3457 case EVENT_PMKID_CANDIDATE:
3458 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
3460 #ifdef CONFIG_PEERKEY
3461 case EVENT_STKSTART:
3462 wpa_supplicant_event_stkstart(wpa_s, data);
3464 #endif /* CONFIG_PEERKEY */
3467 wpa_supplicant_event_tdls(wpa_s, data);
3469 #endif /* CONFIG_TDLS */
3472 wpa_supplicant_event_wnm(wpa_s, data);
3474 #endif /* CONFIG_WNM */
3475 #ifdef CONFIG_IEEE80211R
3476 case EVENT_FT_RESPONSE:
3477 wpa_supplicant_event_ft_response(wpa_s, data);
3479 #endif /* CONFIG_IEEE80211R */
3480 #ifdef CONFIG_IBSS_RSN
3481 case EVENT_IBSS_RSN_START:
3482 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
3484 #endif /* CONFIG_IBSS_RSN */
3485 case EVENT_ASSOC_REJECT:
3486 if (data->assoc_reject.bssid)
3487 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3488 "bssid=" MACSTR " status_code=%u",
3489 MAC2STR(data->assoc_reject.bssid),
3490 data->assoc_reject.status_code);
3492 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3494 data->assoc_reject.status_code);
3495 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3496 sme_event_assoc_reject(wpa_s, data);
3498 const u8 *bssid = data->assoc_reject.bssid;
3499 if (bssid == NULL || is_zero_ether_addr(bssid))
3500 bssid = wpa_s->pending_bssid;
3501 wpas_connection_failed(wpa_s, bssid);
3502 wpa_supplicant_mark_disassoc(wpa_s);
3505 case EVENT_AUTH_TIMED_OUT:
3506 /* It is possible to get this event from earlier connection */
3507 if (wpa_s->current_ssid &&
3508 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3509 wpa_dbg(wpa_s, MSG_DEBUG,
3510 "Ignore AUTH_TIMED_OUT in mesh configuration");
3513 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3514 sme_event_auth_timed_out(wpa_s, data);
3516 case EVENT_ASSOC_TIMED_OUT:
3517 /* It is possible to get this event from earlier connection */
3518 if (wpa_s->current_ssid &&
3519 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3520 wpa_dbg(wpa_s, MSG_DEBUG,
3521 "Ignore ASSOC_TIMED_OUT in mesh configuration");
3524 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3525 sme_event_assoc_timed_out(wpa_s, data);
3527 case EVENT_TX_STATUS:
3528 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
3529 " type=%d stype=%d",
3530 MAC2STR(data->tx_status.dst),
3531 data->tx_status.type, data->tx_status.stype);
3533 if (wpa_s->ap_iface == NULL) {
3534 #ifdef CONFIG_OFFCHANNEL
3535 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3536 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
3537 offchannel_send_action_tx_status(
3538 wpa_s, data->tx_status.dst,
3539 data->tx_status.data,
3540 data->tx_status.data_len,
3541 data->tx_status.ack ?
3542 OFFCHANNEL_SEND_ACTION_SUCCESS :
3543 OFFCHANNEL_SEND_ACTION_NO_ACK);
3544 #endif /* CONFIG_OFFCHANNEL */
3547 #endif /* CONFIG_AP */
3548 #ifdef CONFIG_OFFCHANNEL
3549 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
3550 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
3552 * Catch TX status events for Action frames we sent via group
3553 * interface in GO mode.
3555 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3556 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
3557 os_memcmp(wpa_s->parent->pending_action_dst,
3558 data->tx_status.dst, ETH_ALEN) == 0) {
3559 offchannel_send_action_tx_status(
3560 wpa_s->parent, data->tx_status.dst,
3561 data->tx_status.data,
3562 data->tx_status.data_len,
3563 data->tx_status.ack ?
3564 OFFCHANNEL_SEND_ACTION_SUCCESS :
3565 OFFCHANNEL_SEND_ACTION_NO_ACK);
3568 #endif /* CONFIG_OFFCHANNEL */
3570 switch (data->tx_status.type) {
3571 case WLAN_FC_TYPE_MGMT:
3572 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
3573 data->tx_status.data_len,
3574 data->tx_status.stype,
3575 data->tx_status.ack);
3577 case WLAN_FC_TYPE_DATA:
3578 ap_tx_status(wpa_s, data->tx_status.dst,
3579 data->tx_status.data,
3580 data->tx_status.data_len,
3581 data->tx_status.ack);
3584 #endif /* CONFIG_AP */
3587 case EVENT_EAPOL_TX_STATUS:
3588 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
3589 data->eapol_tx_status.data,
3590 data->eapol_tx_status.data_len,
3591 data->eapol_tx_status.ack);
3593 case EVENT_DRIVER_CLIENT_POLL_OK:
3594 ap_client_poll_ok(wpa_s, data->client_poll.addr);
3596 case EVENT_RX_FROM_UNKNOWN:
3597 if (wpa_s->ap_iface == NULL)
3599 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
3600 data->rx_from_unknown.wds);
3602 case EVENT_CH_SWITCH:
3603 if (!data || !wpa_s->current_ssid)
3606 wpa_s->assoc_freq = data->ch_switch.freq;
3607 wpa_s->current_ssid->frequency = data->ch_switch.freq;
3609 if (wpa_s->current_ssid->mode == WPAS_MODE_AP ||
3610 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO ||
3611 wpa_s->current_ssid->mode ==
3612 WPAS_MODE_P2P_GROUP_FORMATION) {
3613 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
3614 data->ch_switch.ht_enabled,
3615 data->ch_switch.ch_offset,
3616 data->ch_switch.ch_width,
3617 data->ch_switch.cf1,
3618 data->ch_switch.cf2);
3621 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS);
3624 case EVENT_DFS_RADAR_DETECTED:
3626 wpas_event_dfs_radar_detected(wpa_s, &data->dfs_event);
3628 case EVENT_DFS_CAC_STARTED:
3630 wpas_event_dfs_cac_started(wpa_s, &data->dfs_event);
3632 case EVENT_DFS_CAC_FINISHED:
3634 wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event);
3636 case EVENT_DFS_CAC_ABORTED:
3638 wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event);
3640 case EVENT_DFS_NOP_FINISHED:
3642 wpas_event_dfs_cac_nop_finished(wpa_s,
3645 #endif /* NEED_AP_MLME */
3646 #endif /* CONFIG_AP */
3647 case EVENT_RX_MGMT: {
3649 const struct ieee80211_mgmt *mgmt;
3651 #ifdef CONFIG_TESTING_OPTIONS
3652 if (wpa_s->ext_mgmt_frame_handling) {
3653 struct rx_mgmt *rx = &data->rx_mgmt;
3654 size_t hex_len = 2 * rx->frame_len + 1;
3655 char *hex = os_malloc(hex_len);
3657 wpa_snprintf_hex(hex, hex_len,
3658 rx->frame, rx->frame_len);
3659 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
3660 rx->freq, rx->datarate, rx->ssi_signal,
3666 #endif /* CONFIG_TESTING_OPTIONS */
3668 mgmt = (const struct ieee80211_mgmt *)
3669 data->rx_mgmt.frame;
3670 fc = le_to_host16(mgmt->frame_control);
3671 stype = WLAN_FC_GET_STYPE(fc);
3674 if (wpa_s->ap_iface == NULL) {
3675 #endif /* CONFIG_AP */
3677 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3678 data->rx_mgmt.frame_len > 24) {
3679 const u8 *src = mgmt->sa;
3680 const u8 *ie = mgmt->u.probe_req.variable;
3681 size_t ie_len = data->rx_mgmt.frame_len -
3682 (mgmt->u.probe_req.variable -
3683 data->rx_mgmt.frame);
3684 wpas_p2p_probe_req_rx(
3685 wpa_s, src, mgmt->da,
3686 mgmt->bssid, ie, ie_len,
3688 data->rx_mgmt.ssi_signal);
3691 #endif /* CONFIG_P2P */
3692 #ifdef CONFIG_IBSS_RSN
3693 if (wpa_s->current_ssid &&
3694 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
3695 stype == WLAN_FC_STYPE_AUTH &&
3696 data->rx_mgmt.frame_len >= 30) {
3697 wpa_supplicant_event_ibss_auth(wpa_s, data);
3700 #endif /* CONFIG_IBSS_RSN */
3702 if (stype == WLAN_FC_STYPE_ACTION) {
3703 wpas_event_rx_mgmt_action(
3704 wpa_s, data->rx_mgmt.frame,
3705 data->rx_mgmt.frame_len,
3707 data->rx_mgmt.ssi_signal);
3712 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
3716 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
3717 "management frame in non-AP mode");
3722 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3723 data->rx_mgmt.frame_len > 24) {
3724 const u8 *ie = mgmt->u.probe_req.variable;
3725 size_t ie_len = data->rx_mgmt.frame_len -
3726 (mgmt->u.probe_req.variable -
3727 data->rx_mgmt.frame);
3729 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
3730 mgmt->bssid, ie, ie_len,
3731 data->rx_mgmt.ssi_signal);
3734 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
3735 #endif /* CONFIG_AP */
3738 case EVENT_RX_PROBE_REQ:
3739 if (data->rx_probe_req.sa == NULL ||
3740 data->rx_probe_req.ie == NULL)
3743 if (wpa_s->ap_iface) {
3744 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
3745 data->rx_probe_req.sa,
3746 data->rx_probe_req.da,
3747 data->rx_probe_req.bssid,
3748 data->rx_probe_req.ie,
3749 data->rx_probe_req.ie_len,
3750 data->rx_probe_req.ssi_signal);
3753 #endif /* CONFIG_AP */
3754 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
3755 data->rx_probe_req.da,
3756 data->rx_probe_req.bssid,
3757 data->rx_probe_req.ie,
3758 data->rx_probe_req.ie_len,
3760 data->rx_probe_req.ssi_signal);
3762 case EVENT_REMAIN_ON_CHANNEL:
3763 #ifdef CONFIG_OFFCHANNEL
3764 offchannel_remain_on_channel_cb(
3765 wpa_s, data->remain_on_channel.freq,
3766 data->remain_on_channel.duration);
3767 #endif /* CONFIG_OFFCHANNEL */
3768 wpas_p2p_remain_on_channel_cb(
3769 wpa_s, data->remain_on_channel.freq,
3770 data->remain_on_channel.duration);
3772 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
3773 #ifdef CONFIG_OFFCHANNEL
3774 offchannel_cancel_remain_on_channel_cb(
3775 wpa_s, data->remain_on_channel.freq);
3776 #endif /* CONFIG_OFFCHANNEL */
3777 wpas_p2p_cancel_remain_on_channel_cb(
3778 wpa_s, data->remain_on_channel.freq);
3780 case EVENT_EAPOL_RX:
3781 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
3782 data->eapol_rx.data,
3783 data->eapol_rx.data_len);
3785 case EVENT_SIGNAL_CHANGE:
3786 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
3787 "above=%d signal=%d noise=%d txrate=%d",
3788 data->signal_change.above_threshold,
3789 data->signal_change.current_signal,
3790 data->signal_change.current_noise,
3791 data->signal_change.current_txrate);
3792 wpa_bss_update_level(wpa_s->current_bss,
3793 data->signal_change.current_signal);
3794 bgscan_notify_signal_change(
3795 wpa_s, data->signal_change.above_threshold,
3796 data->signal_change.current_signal,
3797 data->signal_change.current_noise,
3798 data->signal_change.current_txrate);
3800 case EVENT_INTERFACE_ENABLED:
3801 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
3802 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3803 wpa_supplicant_update_mac_addr(wpa_s);
3804 if (wpa_s->p2p_mgmt) {
3805 wpa_supplicant_set_state(wpa_s,
3811 if (!wpa_s->ap_iface) {
3812 wpa_supplicant_set_state(wpa_s,
3814 wpa_s->scan_req = NORMAL_SCAN_REQ;
3815 wpa_supplicant_req_scan(wpa_s, 0, 0);
3817 wpa_supplicant_set_state(wpa_s,
3819 #else /* CONFIG_AP */
3820 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
3821 wpa_supplicant_req_scan(wpa_s, 0, 0);
3822 #endif /* CONFIG_AP */
3825 case EVENT_INTERFACE_DISABLED:
3826 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
3828 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
3829 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
3830 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
3832 * Mark interface disabled if this happens to end up not
3833 * being removed as a separate P2P group interface.
3835 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3837 * The interface was externally disabled. Remove
3838 * it assuming an external entity will start a
3839 * new session if needed.
3841 if (wpa_s->current_ssid &&
3842 wpa_s->current_ssid->p2p_group)
3843 wpas_p2p_interface_unavailable(wpa_s);
3845 wpas_p2p_disconnect(wpa_s);
3847 * wpa_s instance may have been freed, so must not use
3852 if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
3853 p2p_in_progress(wpa_s->global->p2p) > 1) {
3854 /* This radio work will be cancelled, so clear P2P
3857 p2p_stop_find(wpa_s->global->p2p);
3859 #endif /* CONFIG_P2P */
3861 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3863 * Indicate disconnection to keep ctrl_iface events
3866 wpa_supplicant_event_disassoc(
3867 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
3869 wpa_supplicant_mark_disassoc(wpa_s);
3870 radio_remove_works(wpa_s, NULL, 0);
3872 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3874 case EVENT_CHANNEL_LIST_CHANGED:
3875 wpa_supplicant_update_channel_list(
3876 wpa_s, &data->channel_list_changed);
3878 case EVENT_INTERFACE_UNAVAILABLE:
3879 wpas_p2p_interface_unavailable(wpa_s);
3881 case EVENT_BEST_CHANNEL:
3882 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
3884 data->best_chan.freq_24, data->best_chan.freq_5,
3885 data->best_chan.freq_overall);
3886 wpa_s->best_24_freq = data->best_chan.freq_24;
3887 wpa_s->best_5_freq = data->best_chan.freq_5;
3888 wpa_s->best_overall_freq = data->best_chan.freq_overall;
3889 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
3890 data->best_chan.freq_5,
3891 data->best_chan.freq_overall);
3893 case EVENT_UNPROT_DEAUTH:
3894 wpa_supplicant_event_unprot_deauth(wpa_s,
3895 &data->unprot_deauth);
3897 case EVENT_UNPROT_DISASSOC:
3898 wpa_supplicant_event_unprot_disassoc(wpa_s,
3899 &data->unprot_disassoc);
3901 case EVENT_STATION_LOW_ACK:
3903 if (wpa_s->ap_iface && data)
3904 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
3905 data->low_ack.addr);
3906 #endif /* CONFIG_AP */
3909 wpa_tdls_disable_unreachable_link(wpa_s->wpa,
3910 data->low_ack.addr);
3911 #endif /* CONFIG_TDLS */
3913 case EVENT_IBSS_PEER_LOST:
3914 #ifdef CONFIG_IBSS_RSN
3915 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
3916 #endif /* CONFIG_IBSS_RSN */
3918 case EVENT_DRIVER_GTK_REKEY:
3919 if (os_memcmp(data->driver_gtk_rekey.bssid,
3920 wpa_s->bssid, ETH_ALEN))
3924 wpa_sm_update_replay_ctr(wpa_s->wpa,
3925 data->driver_gtk_rekey.replay_ctr);
3927 case EVENT_SCHED_SCAN_STOPPED:
3929 wpa_s->sched_scanning = 0;
3930 resched = wpa_s->scanning;
3931 wpa_supplicant_notify_scanning(wpa_s, 0);
3933 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
3937 * Start a new sched scan to continue searching for more SSIDs
3938 * either if timed out or PNO schedule scan is pending.
3940 if (wpa_s->sched_scan_timed_out) {
3941 wpa_supplicant_req_sched_scan(wpa_s);
3942 } else if (wpa_s->pno_sched_pending) {
3943 wpa_s->pno_sched_pending = 0;
3944 wpas_start_pno(wpa_s);
3945 } else if (resched) {
3946 wpa_supplicant_req_scan(wpa_s, 0, 0);
3950 case EVENT_WPS_BUTTON_PUSHED:
3952 wpas_wps_start_pbc(wpa_s, NULL, 0);
3953 #endif /* CONFIG_WPS */
3955 case EVENT_AVOID_FREQUENCIES:
3956 wpa_supplicant_notify_avoid_freq(wpa_s, data);
3958 case EVENT_CONNECT_FAILED_REASON:
3960 if (!wpa_s->ap_iface || !data)
3962 hostapd_event_connect_failed_reason(
3963 wpa_s->ap_iface->bss[0],
3964 data->connect_failed_reason.addr,
3965 data->connect_failed_reason.code);
3966 #endif /* CONFIG_AP */
3968 case EVENT_NEW_PEER_CANDIDATE:
3970 if (!wpa_s->ifmsh || !data)
3972 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
3973 data->mesh_peer.ies,
3974 data->mesh_peer.ie_len);
3975 #endif /* CONFIG_MESH */
3979 if (!wpa_s->ap_iface)
3981 hostapd_event_get_survey(wpa_s->ap_iface,
3982 &data->survey_results);
3983 #endif /* CONFIG_AP */
3985 case EVENT_ACS_CHANNEL_SELECTED:
3987 if (!wpa_s->ap_iface)
3989 hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0],
3990 &data->acs_selected_channels);
3991 #endif /* CONFIG_ACS */
3994 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);