2 * WPA Supplicant - Glue code to setup EAPOL and RSN modules
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 "eap_peer/eap.h"
14 #include "rsn_supp/wpa.h"
17 #include "l2_packet/l2_packet.h"
18 #include "common/wpa_common.h"
19 #include "wpa_supplicant_i.h"
21 #include "rsn_supp/pmksa_cache.h"
23 #include "common/ieee802_11_defs.h"
24 #include "common/wpa_ctrl.h"
25 #include "wpas_glue.h"
26 #include "wps_supplicant.h"
33 #ifndef CONFIG_NO_CONFIG_BLOBS
34 #if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA)
35 static void wpa_supplicant_set_config_blob(void *ctx,
36 struct wpa_config_blob *blob)
38 struct wpa_supplicant *wpa_s = ctx;
39 wpa_config_set_blob(wpa_s->conf, blob);
40 if (wpa_s->conf->update_config) {
41 int ret = wpa_config_write(wpa_s->confname, wpa_s->conf);
43 wpa_printf(MSG_DEBUG, "Failed to update config after "
50 static const struct wpa_config_blob *
51 wpa_supplicant_get_config_blob(void *ctx, const char *name)
53 struct wpa_supplicant *wpa_s = ctx;
54 return wpa_config_get_blob(wpa_s->conf, name);
56 #endif /* defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA) */
57 #endif /* CONFIG_NO_CONFIG_BLOBS */
60 #if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA)
61 static u8 * wpa_alloc_eapol(const struct wpa_supplicant *wpa_s, u8 type,
62 const void *data, u16 data_len,
63 size_t *msg_len, void **data_pos)
65 struct ieee802_1x_hdr *hdr;
67 *msg_len = sizeof(*hdr) + data_len;
68 hdr = os_malloc(*msg_len);
72 hdr->version = wpa_s->conf->eapol_version;
74 hdr->length = host_to_be16(data_len);
77 os_memcpy(hdr + 1, data, data_len);
79 os_memset(hdr + 1, 0, data_len);
89 * wpa_ether_send - Send Ethernet frame
90 * @wpa_s: Pointer to wpa_supplicant data
91 * @dest: Destination MAC address
92 * @proto: Ethertype in host byte order
93 * @buf: Frame payload starting from IEEE 802.1X header
94 * @len: Frame payload length
95 * Returns: >=0 on success, <0 on failure
97 static int wpa_ether_send(struct wpa_supplicant *wpa_s, const u8 *dest,
98 u16 proto, const u8 *buf, size_t len)
100 #ifdef CONFIG_TESTING_OPTIONS
101 if (wpa_s->ext_eapol_frame_io && proto == ETH_P_EAPOL) {
102 size_t hex_len = 2 * len + 1;
103 char *hex = os_malloc(hex_len);
107 wpa_snprintf_hex(hex, hex_len, buf, len);
108 wpa_msg(wpa_s, MSG_INFO, "EAPOL-TX " MACSTR " %s",
113 #endif /* CONFIG_TESTING_OPTIONS */
116 return l2_packet_send(wpa_s->l2, dest, proto, buf, len);
121 #endif /* IEEE8021X_EAPOL || !CONFIG_NO_WPA */
124 #ifdef IEEE8021X_EAPOL
127 * wpa_supplicant_eapol_send - Send IEEE 802.1X EAPOL packet to Authenticator
128 * @ctx: Pointer to wpa_supplicant data (wpa_s)
129 * @type: IEEE 802.1X packet type (IEEE802_1X_TYPE_*)
130 * @buf: EAPOL payload (after IEEE 802.1X header)
131 * @len: EAPOL payload length
132 * Returns: >=0 on success, <0 on failure
134 * This function adds Ethernet and IEEE 802.1X header and sends the EAPOL frame
135 * to the current Authenticator.
137 static int wpa_supplicant_eapol_send(void *ctx, int type, const u8 *buf,
140 struct wpa_supplicant *wpa_s = ctx;
141 u8 *msg, *dst, bssid[ETH_ALEN];
145 /* TODO: could add l2_packet_sendmsg that allows fragments to avoid
148 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
149 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE ||
150 wpa_s->key_mgmt == WPA_KEY_MGMT_DPP ||
151 wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) {
152 /* Current SSID is not using IEEE 802.1X/EAP, so drop possible
153 * EAPOL frames (mainly, EAPOL-Start) from EAPOL state
155 wpa_printf(MSG_DEBUG, "WPA: drop TX EAPOL in non-IEEE 802.1X "
156 "mode (type=%d len=%lu)", type,
157 (unsigned long) len);
161 if (pmksa_cache_get_current(wpa_s->wpa) &&
162 type == IEEE802_1X_TYPE_EAPOL_START) {
164 * We were trying to use PMKSA caching and sending EAPOL-Start
165 * would abort that and trigger full EAPOL authentication.
166 * However, we've already waited for the AP/Authenticator to
167 * start 4-way handshake or EAP authentication, and apparently
168 * it has not done so since the startWhen timer has reached zero
169 * to get the state machine sending EAPOL-Start. This is not
170 * really supposed to happen, but an interoperability issue with
171 * a deployed AP has been identified where the connection fails
172 * due to that AP failing to operate correctly if PMKID is
173 * included in the Association Request frame. To work around
174 * this, assume PMKSA caching failed and try to initiate full
175 * EAP authentication.
177 if (!wpa_s->current_ssid ||
178 wpa_s->current_ssid->eap_workaround) {
179 wpa_printf(MSG_DEBUG,
180 "RSN: Timeout on waiting for the AP to initiate 4-way handshake for PMKSA caching or EAP authentication - try to force it to start EAP authentication");
182 wpa_printf(MSG_DEBUG,
183 "RSN: PMKSA caching - do not send EAPOL-Start");
188 if (is_zero_ether_addr(wpa_s->bssid)) {
189 wpa_printf(MSG_DEBUG, "BSSID not set when trying to send an "
191 if (wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
192 !is_zero_ether_addr(bssid)) {
194 wpa_printf(MSG_DEBUG, "Using current BSSID " MACSTR
195 " from the driver as the EAPOL destination",
198 dst = wpa_s->last_eapol_src;
199 wpa_printf(MSG_DEBUG, "Using the source address of the"
200 " last received EAPOL frame " MACSTR " as "
201 "the EAPOL destination",
205 /* BSSID was already set (from (Re)Assoc event, so use it as
206 * the EAPOL destination. */
210 msg = wpa_alloc_eapol(wpa_s, type, buf, len, &msglen, NULL);
214 wpa_printf(MSG_DEBUG, "TX EAPOL: dst=" MACSTR, MAC2STR(dst));
215 wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", msg, msglen);
216 res = wpa_ether_send(wpa_s, dst, ETH_P_EAPOL, msg, msglen);
223 * wpa_eapol_set_wep_key - set WEP key for the driver
224 * @ctx: Pointer to wpa_supplicant data (wpa_s)
225 * @unicast: 1 = individual unicast key, 0 = broadcast key
226 * @keyidx: WEP key index (0..3)
227 * @key: Pointer to key data
228 * @keylen: Key length in bytes
229 * Returns: 0 on success or < 0 on error.
231 static int wpa_eapol_set_wep_key(void *ctx, int unicast, int keyidx,
232 const u8 *key, size_t keylen)
234 struct wpa_supplicant *wpa_s = ctx;
235 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
236 int cipher = (keylen == 5) ? WPA_CIPHER_WEP40 :
239 wpa_s->pairwise_cipher = cipher;
241 wpa_s->group_cipher = cipher;
243 return wpa_drv_set_key(wpa_s, WPA_ALG_WEP,
244 unicast ? wpa_s->bssid : NULL,
245 keyidx, unicast, NULL, 0, key, keylen);
249 static void wpa_supplicant_aborted_cached(void *ctx)
251 struct wpa_supplicant *wpa_s = ctx;
252 wpa_sm_aborted_cached(wpa_s->wpa);
256 static const char * result_str(enum eapol_supp_result result)
259 case EAPOL_SUPP_RESULT_FAILURE:
261 case EAPOL_SUPP_RESULT_SUCCESS:
263 case EAPOL_SUPP_RESULT_EXPECTED_FAILURE:
264 return "EXPECTED_FAILURE";
270 static void wpa_supplicant_eapol_cb(struct eapol_sm *eapol,
271 enum eapol_supp_result result,
274 struct wpa_supplicant *wpa_s = ctx;
278 wpa_printf(MSG_DEBUG, "EAPOL authentication completed - result=%s",
281 if (wpas_wps_eapol_cb(wpa_s) > 0)
284 wpa_s->eap_expected_failure = result ==
285 EAPOL_SUPP_RESULT_EXPECTED_FAILURE;
287 if (result != EAPOL_SUPP_RESULT_SUCCESS) {
289 * Make sure we do not get stuck here waiting for long EAPOL
290 * timeout if the AP does not disconnect in case of
291 * authentication failure.
293 wpa_supplicant_req_auth_timeout(wpa_s, 2, 0);
295 ieee802_1x_notify_create_actor(wpa_s, wpa_s->last_eapol_src);
298 if (result != EAPOL_SUPP_RESULT_SUCCESS ||
299 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X))
302 if (!wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt))
305 wpa_printf(MSG_DEBUG, "Configure PMK for driver-based RSN 4-way "
309 if (wpa_key_mgmt_ft(wpa_s->key_mgmt)) {
310 #ifdef CONFIG_IEEE80211R
312 wpa_printf(MSG_DEBUG, "RSN: Use FT XXKey as PMK for "
313 "driver-based 4-way hs and FT");
314 res = eapol_sm_get_key(eapol, buf, 2 * PMK_LEN);
316 os_memcpy(pmk, buf + PMK_LEN, PMK_LEN);
317 os_memset(buf, 0, sizeof(buf));
319 #else /* CONFIG_IEEE80211R */
321 #endif /* CONFIG_IEEE80211R */
323 res = eapol_sm_get_key(eapol, pmk, PMK_LEN);
326 * EAP-LEAP is an exception from other EAP methods: it
327 * uses only 16-byte PMK.
329 res = eapol_sm_get_key(eapol, pmk, 16);
335 wpa_printf(MSG_DEBUG, "Failed to get PMK from EAPOL state "
340 wpa_hexdump_key(MSG_DEBUG, "RSN: Configure PMK for driver-based 4-way "
341 "handshake", pmk, pmk_len);
343 if (wpa_drv_set_key(wpa_s, WPA_ALG_PMK, NULL, 0, 0, NULL, 0, pmk,
345 wpa_printf(MSG_DEBUG, "Failed to set PMK to the driver");
348 wpa_supplicant_cancel_scan(wpa_s);
349 wpa_supplicant_cancel_auth_timeout(wpa_s);
350 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
355 static void wpa_supplicant_notify_eapol_done(void *ctx)
357 struct wpa_supplicant *wpa_s = ctx;
358 wpa_msg(wpa_s, MSG_DEBUG, "WPA: EAPOL processing complete");
359 if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
360 wpa_supplicant_set_state(wpa_s, WPA_4WAY_HANDSHAKE);
362 wpa_supplicant_cancel_auth_timeout(wpa_s);
363 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
367 #endif /* IEEE8021X_EAPOL */
370 #ifndef CONFIG_NO_WPA
372 static int wpa_get_beacon_ie(struct wpa_supplicant *wpa_s)
375 struct wpa_bss *curr = NULL, *bss;
376 struct wpa_ssid *ssid = wpa_s->current_ssid;
379 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
380 if (os_memcmp(bss->bssid, wpa_s->bssid, ETH_ALEN) != 0)
383 ((bss->ssid_len == ssid->ssid_len &&
384 os_memcmp(bss->ssid, ssid->ssid, ssid->ssid_len) == 0) ||
385 ssid->ssid_len == 0)) {
392 ie = wpa_bss_get_vendor_ie(curr, WPA_IE_VENDOR_TYPE);
393 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
396 ie = wpa_bss_get_ie(curr, WLAN_EID_RSN);
397 if (wpa_sm_set_ap_rsn_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
407 static int wpa_supplicant_get_beacon_ie(void *ctx)
409 struct wpa_supplicant *wpa_s = ctx;
410 if (wpa_get_beacon_ie(wpa_s) == 0) {
414 /* No WPA/RSN IE found in the cached scan results. Try to get updated
415 * scan results from the driver. */
416 if (wpa_supplicant_update_scan_results(wpa_s) < 0)
419 return wpa_get_beacon_ie(wpa_s);
423 static u8 * _wpa_alloc_eapol(void *wpa_s, u8 type,
424 const void *data, u16 data_len,
425 size_t *msg_len, void **data_pos)
427 return wpa_alloc_eapol(wpa_s, type, data, data_len, msg_len, data_pos);
431 static int _wpa_ether_send(void *wpa_s, const u8 *dest, u16 proto,
432 const u8 *buf, size_t len)
434 return wpa_ether_send(wpa_s, dest, proto, buf, len);
438 static void _wpa_supplicant_cancel_auth_timeout(void *wpa_s)
440 wpa_supplicant_cancel_auth_timeout(wpa_s);
444 static void _wpa_supplicant_set_state(void *wpa_s, enum wpa_states state)
446 wpa_supplicant_set_state(wpa_s, state);
451 * wpa_supplicant_get_state - Get the connection state
452 * @wpa_s: Pointer to wpa_supplicant data
453 * Returns: The current connection state (WPA_*)
455 static enum wpa_states wpa_supplicant_get_state(struct wpa_supplicant *wpa_s)
457 return wpa_s->wpa_state;
461 static enum wpa_states _wpa_supplicant_get_state(void *wpa_s)
463 return wpa_supplicant_get_state(wpa_s);
467 static void _wpa_supplicant_deauthenticate(void *wpa_s, int reason_code)
469 wpa_supplicant_deauthenticate(wpa_s, reason_code);
470 /* Schedule a scan to make sure we continue looking for networks */
471 wpa_supplicant_req_scan(wpa_s, 5, 0);
475 static void * wpa_supplicant_get_network_ctx(void *wpa_s)
477 return wpa_supplicant_get_ssid(wpa_s);
481 static int wpa_supplicant_get_bssid(void *ctx, u8 *bssid)
483 struct wpa_supplicant *wpa_s = ctx;
484 return wpa_drv_get_bssid(wpa_s, bssid);
488 static int wpa_supplicant_set_key(void *_wpa_s, enum wpa_alg alg,
489 const u8 *addr, int key_idx, int set_tx,
490 const u8 *seq, size_t seq_len,
491 const u8 *key, size_t key_len)
493 struct wpa_supplicant *wpa_s = _wpa_s;
494 if (alg == WPA_ALG_TKIP && key_idx == 0 && key_len == 32) {
495 /* Clear the MIC error counter when setting a new PTK. */
496 wpa_s->mic_errors_seen = 0;
498 #ifdef CONFIG_TESTING_GET_GTK
499 if (key_idx > 0 && addr && is_broadcast_ether_addr(addr) &&
500 alg != WPA_ALG_NONE && key_len <= sizeof(wpa_s->last_gtk)) {
501 os_memcpy(wpa_s->last_gtk, key, key_len);
502 wpa_s->last_gtk_len = key_len;
504 #endif /* CONFIG_TESTING_GET_GTK */
505 #ifdef CONFIG_TESTING_OPTIONS
506 if (addr && !is_broadcast_ether_addr(addr)) {
507 wpa_s->last_tk_alg = alg;
508 os_memcpy(wpa_s->last_tk_addr, addr, ETH_ALEN);
509 wpa_s->last_tk_key_idx = key_idx;
511 os_memcpy(wpa_s->last_tk, key, key_len);
512 wpa_s->last_tk_len = key_len;
514 #endif /* CONFIG_TESTING_OPTIONS */
515 return wpa_drv_set_key(wpa_s, alg, addr, key_idx, set_tx, seq, seq_len,
520 static int wpa_supplicant_mlme_setprotection(void *wpa_s, const u8 *addr,
524 return wpa_drv_mlme_setprotection(wpa_s, addr, protection_type,
529 static struct wpa_ssid * wpas_get_network_ctx(struct wpa_supplicant *wpa_s,
532 struct wpa_ssid *ssid;
534 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
535 if (network_ctx == ssid)
543 static int wpa_supplicant_add_pmkid(void *_wpa_s, void *network_ctx,
544 const u8 *bssid, const u8 *pmkid,
545 const u8 *fils_cache_id,
546 const u8 *pmk, size_t pmk_len)
548 struct wpa_supplicant *wpa_s = _wpa_s;
549 struct wpa_ssid *ssid;
550 struct wpa_pmkid_params params;
552 os_memset(¶ms, 0, sizeof(params));
553 ssid = wpas_get_network_ctx(wpa_s, network_ctx);
555 wpa_msg(wpa_s, MSG_INFO, PMKSA_CACHE_ADDED MACSTR " %d",
556 MAC2STR(bssid), ssid->id);
557 if (ssid && fils_cache_id) {
558 params.ssid = ssid->ssid;
559 params.ssid_len = ssid->ssid_len;
560 params.fils_cache_id = fils_cache_id;
562 params.bssid = bssid;
565 params.pmkid = pmkid;
567 params.pmk_len = pmk_len;
569 return wpa_drv_add_pmkid(wpa_s, ¶ms);
573 static int wpa_supplicant_remove_pmkid(void *_wpa_s, void *network_ctx,
574 const u8 *bssid, const u8 *pmkid,
575 const u8 *fils_cache_id)
577 struct wpa_supplicant *wpa_s = _wpa_s;
578 struct wpa_ssid *ssid;
579 struct wpa_pmkid_params params;
581 os_memset(¶ms, 0, sizeof(params));
582 ssid = wpas_get_network_ctx(wpa_s, network_ctx);
584 wpa_msg(wpa_s, MSG_INFO, PMKSA_CACHE_REMOVED MACSTR " %d",
585 MAC2STR(bssid), ssid->id);
586 if (ssid && fils_cache_id) {
587 params.ssid = ssid->ssid;
588 params.ssid_len = ssid->ssid_len;
589 params.fils_cache_id = fils_cache_id;
591 params.bssid = bssid;
594 params.pmkid = pmkid;
596 return wpa_drv_remove_pmkid(wpa_s, ¶ms);
600 #ifdef CONFIG_IEEE80211R
601 static int wpa_supplicant_update_ft_ies(void *ctx, const u8 *md,
602 const u8 *ies, size_t ies_len)
604 struct wpa_supplicant *wpa_s = ctx;
605 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
606 return sme_update_ft_ies(wpa_s, md, ies, ies_len);
607 return wpa_drv_update_ft_ies(wpa_s, md, ies, ies_len);
611 static int wpa_supplicant_send_ft_action(void *ctx, u8 action,
613 const u8 *ies, size_t ies_len)
615 struct wpa_supplicant *wpa_s = ctx;
621 wpa_printf(MSG_ERROR, "Unsupported send_ft_action action %d",
627 * Action frame payload:
628 * Category[1] = 6 (Fast BSS Transition)
629 * Action[1] = 1 (Fast BSS Transition Request)
635 data_len = 2 + 2 * ETH_ALEN + ies_len;
636 data = os_malloc(data_len);
640 *pos++ = 0x06; /* FT Action category */
642 os_memcpy(pos, wpa_s->own_addr, ETH_ALEN);
644 os_memcpy(pos, target_ap, ETH_ALEN);
646 os_memcpy(pos, ies, ies_len);
648 ret = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0,
649 wpa_s->bssid, wpa_s->own_addr, wpa_s->bssid,
657 static int wpa_supplicant_mark_authenticated(void *ctx, const u8 *target_ap)
659 struct wpa_supplicant *wpa_s = ctx;
660 struct wpa_driver_auth_params params;
663 bss = wpa_bss_get_bssid(wpa_s, target_ap);
667 os_memset(¶ms, 0, sizeof(params));
668 params.bssid = target_ap;
669 params.freq = bss->freq;
670 params.ssid = bss->ssid;
671 params.ssid_len = bss->ssid_len;
672 params.auth_alg = WPA_AUTH_ALG_FT;
673 params.local_state_change = 1;
674 return wpa_drv_authenticate(wpa_s, ¶ms);
676 #endif /* CONFIG_IEEE80211R */
681 static int wpa_supplicant_tdls_get_capa(void *ctx, int *tdls_supported,
683 int *tdls_chan_switch)
685 struct wpa_supplicant *wpa_s = ctx;
689 *tdls_chan_switch = 0;
691 if (!wpa_s->drv_capa_known)
694 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)
697 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP)
700 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH)
701 *tdls_chan_switch = 1;
707 static int wpa_supplicant_send_tdls_mgmt(void *ctx, const u8 *dst,
708 u8 action_code, u8 dialog_token,
709 u16 status_code, u32 peer_capab,
710 int initiator, const u8 *buf,
713 struct wpa_supplicant *wpa_s = ctx;
714 return wpa_drv_send_tdls_mgmt(wpa_s, dst, action_code, dialog_token,
715 status_code, peer_capab, initiator, buf,
720 static int wpa_supplicant_tdls_oper(void *ctx, int oper, const u8 *peer)
722 struct wpa_supplicant *wpa_s = ctx;
723 return wpa_drv_tdls_oper(wpa_s, oper, peer);
727 static int wpa_supplicant_tdls_peer_addset(
728 void *ctx, const u8 *peer, int add, u16 aid, u16 capability,
729 const u8 *supp_rates, size_t supp_rates_len,
730 const struct ieee80211_ht_capabilities *ht_capab,
731 const struct ieee80211_vht_capabilities *vht_capab,
732 u8 qosinfo, int wmm, const u8 *ext_capab, size_t ext_capab_len,
733 const u8 *supp_channels, size_t supp_channels_len,
734 const u8 *supp_oper_classes, size_t supp_oper_classes_len)
736 struct wpa_supplicant *wpa_s = ctx;
737 struct hostapd_sta_add_params params;
739 os_memset(¶ms, 0, sizeof(params));
743 params.capability = capability;
744 params.flags = WPA_STA_TDLS_PEER | WPA_STA_AUTHORIZED;
747 * Don't rely only on qosinfo for WMM capability. It may be 0 even when
748 * present. Allow the WMM IE to also indicate QoS support.
751 params.flags |= WPA_STA_WMM;
753 params.ht_capabilities = ht_capab;
754 params.vht_capabilities = vht_capab;
755 params.qosinfo = qosinfo;
756 params.listen_interval = 0;
757 params.supp_rates = supp_rates;
758 params.supp_rates_len = supp_rates_len;
760 params.ext_capab = ext_capab;
761 params.ext_capab_len = ext_capab_len;
762 params.supp_channels = supp_channels;
763 params.supp_channels_len = supp_channels_len;
764 params.supp_oper_classes = supp_oper_classes;
765 params.supp_oper_classes_len = supp_oper_classes_len;
767 return wpa_drv_sta_add(wpa_s, ¶ms);
771 static int wpa_supplicant_tdls_enable_channel_switch(
772 void *ctx, const u8 *addr, u8 oper_class,
773 const struct hostapd_freq_params *params)
775 struct wpa_supplicant *wpa_s = ctx;
777 return wpa_drv_tdls_enable_channel_switch(wpa_s, addr, oper_class,
782 static int wpa_supplicant_tdls_disable_channel_switch(void *ctx, const u8 *addr)
784 struct wpa_supplicant *wpa_s = ctx;
786 return wpa_drv_tdls_disable_channel_switch(wpa_s, addr);
789 #endif /* CONFIG_TDLS */
791 #endif /* CONFIG_NO_WPA */
794 enum wpa_ctrl_req_type wpa_supplicant_ctrl_req_from_string(const char *field)
796 if (os_strcmp(field, "IDENTITY") == 0)
797 return WPA_CTRL_REQ_EAP_IDENTITY;
798 else if (os_strcmp(field, "PASSWORD") == 0)
799 return WPA_CTRL_REQ_EAP_PASSWORD;
800 else if (os_strcmp(field, "NEW_PASSWORD") == 0)
801 return WPA_CTRL_REQ_EAP_NEW_PASSWORD;
802 else if (os_strcmp(field, "PIN") == 0)
803 return WPA_CTRL_REQ_EAP_PIN;
804 else if (os_strcmp(field, "OTP") == 0)
805 return WPA_CTRL_REQ_EAP_OTP;
806 else if (os_strcmp(field, "PASSPHRASE") == 0)
807 return WPA_CTRL_REQ_EAP_PASSPHRASE;
808 else if (os_strcmp(field, "SIM") == 0)
809 return WPA_CTRL_REQ_SIM;
810 else if (os_strcmp(field, "PSK_PASSPHRASE") == 0)
811 return WPA_CTRL_REQ_PSK_PASSPHRASE;
812 else if (os_strcmp(field, "EXT_CERT_CHECK") == 0)
813 return WPA_CTRL_REQ_EXT_CERT_CHECK;
814 return WPA_CTRL_REQ_UNKNOWN;
818 const char * wpa_supplicant_ctrl_req_to_string(enum wpa_ctrl_req_type field,
819 const char *default_txt,
822 const char *ret = NULL;
827 case WPA_CTRL_REQ_EAP_IDENTITY:
831 case WPA_CTRL_REQ_EAP_PASSWORD:
835 case WPA_CTRL_REQ_EAP_NEW_PASSWORD:
836 *txt = "New Password";
837 ret = "NEW_PASSWORD";
839 case WPA_CTRL_REQ_EAP_PIN:
843 case WPA_CTRL_REQ_EAP_OTP:
846 case WPA_CTRL_REQ_EAP_PASSPHRASE:
847 *txt = "Private key passphrase";
850 case WPA_CTRL_REQ_SIM:
853 case WPA_CTRL_REQ_PSK_PASSPHRASE:
854 *txt = "PSK or passphrase";
855 ret = "PSK_PASSPHRASE";
857 case WPA_CTRL_REQ_EXT_CERT_CHECK:
858 *txt = "External server certificate validation";
859 ret = "EXT_CERT_CHECK";
865 /* txt needs to be something */
867 wpa_printf(MSG_WARNING, "No message for request %d", field);
875 void wpas_send_ctrl_req(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
876 const char *field_name, const char *txt)
882 buflen = 100 + os_strlen(txt) + ssid->ssid_len;
883 buf = os_malloc(buflen);
886 len = os_snprintf(buf, buflen, "%s-%d:%s needed for SSID ",
887 field_name, ssid->id, txt);
888 if (os_snprintf_error(buflen, len)) {
892 if (ssid->ssid && buflen > len + ssid->ssid_len) {
893 os_memcpy(buf + len, ssid->ssid, ssid->ssid_len);
894 len += ssid->ssid_len;
897 buf[buflen - 1] = '\0';
898 wpa_msg(wpa_s, MSG_INFO, WPA_CTRL_REQ "%s", buf);
903 #ifdef IEEE8021X_EAPOL
904 #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG)
905 static void wpa_supplicant_eap_param_needed(void *ctx,
906 enum wpa_ctrl_req_type field,
907 const char *default_txt)
909 struct wpa_supplicant *wpa_s = ctx;
910 struct wpa_ssid *ssid = wpa_s->current_ssid;
911 const char *field_name, *txt = NULL;
916 if (field == WPA_CTRL_REQ_EXT_CERT_CHECK)
917 ssid->eap.pending_ext_cert_check = PENDING_CHECK;
918 wpas_notify_network_request(wpa_s, ssid, field, default_txt);
920 field_name = wpa_supplicant_ctrl_req_to_string(field, default_txt,
922 if (field_name == NULL) {
923 wpa_printf(MSG_WARNING, "Unhandled EAP param %d needed",
928 wpas_notify_eap_status(wpa_s, "eap parameter needed", field_name);
930 wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
932 #else /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
933 #define wpa_supplicant_eap_param_needed NULL
934 #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
937 #ifdef CONFIG_EAP_PROXY
939 static void wpa_supplicant_eap_proxy_cb(void *ctx)
941 struct wpa_supplicant *wpa_s = ctx;
944 wpa_s->mnc_len = eapol_sm_get_eap_proxy_imsi(wpa_s->eapol, -1,
946 if (wpa_s->mnc_len > 0) {
947 wpa_s->imsi[len] = '\0';
948 wpa_printf(MSG_DEBUG, "eap_proxy: IMSI %s (MNC length %d)",
949 wpa_s->imsi, wpa_s->mnc_len);
951 wpa_printf(MSG_DEBUG, "eap_proxy: IMSI not available");
956 static void wpa_sm_sim_state_error_handler(struct wpa_supplicant *wpa_s)
959 struct wpa_ssid *ssid;
960 const struct eap_method_type *eap_methods;
965 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
966 eap_methods = ssid->eap.eap_methods;
970 for (i = 0; eap_methods[i].method != EAP_TYPE_NONE; i++) {
971 if (eap_methods[i].vendor == EAP_VENDOR_IETF &&
972 (eap_methods[i].method == EAP_TYPE_SIM ||
973 eap_methods[i].method == EAP_TYPE_AKA ||
974 eap_methods[i].method == EAP_TYPE_AKA_PRIME)) {
975 wpa_sm_pmksa_cache_flush(wpa_s->wpa, ssid);
984 wpa_supplicant_eap_proxy_notify_sim_status(void *ctx,
985 enum eap_proxy_sim_state sim_state)
987 struct wpa_supplicant *wpa_s = ctx;
989 wpa_printf(MSG_DEBUG, "eap_proxy: SIM card status %u", sim_state);
991 case SIM_STATE_ERROR:
992 wpa_sm_sim_state_error_handler(wpa_s);
995 wpa_printf(MSG_DEBUG, "eap_proxy: SIM card status unknown");
1000 #endif /* CONFIG_EAP_PROXY */
1003 static void wpa_supplicant_port_cb(void *ctx, int authorized)
1005 struct wpa_supplicant *wpa_s = ctx;
1007 if (wpa_s->ap_iface) {
1008 wpa_printf(MSG_DEBUG, "AP mode active - skip EAPOL Supplicant "
1010 authorized ? "Authorized" : "Unauthorized");
1013 #endif /* CONFIG_AP */
1014 wpa_printf(MSG_DEBUG, "EAPOL: Supplicant port status: %s",
1015 authorized ? "Authorized" : "Unauthorized");
1016 wpa_drv_set_supp_port(wpa_s, authorized);
1020 static void wpa_supplicant_cert_cb(void *ctx, int depth, const char *subject,
1021 const char *altsubject[], int num_altsubject,
1022 const char *cert_hash,
1023 const struct wpabuf *cert)
1025 struct wpa_supplicant *wpa_s = ctx;
1027 wpas_notify_certification(wpa_s, depth, subject, altsubject,
1028 num_altsubject, cert_hash, cert);
1032 static void wpa_supplicant_status_cb(void *ctx, const char *status,
1033 const char *parameter)
1035 struct wpa_supplicant *wpa_s = ctx;
1037 wpas_notify_eap_status(wpa_s, status, parameter);
1041 static void wpa_supplicant_eap_error_cb(void *ctx, int error_code)
1043 struct wpa_supplicant *wpa_s = ctx;
1045 wpas_notify_eap_error(wpa_s, error_code);
1049 static void wpa_supplicant_set_anon_id(void *ctx, const u8 *id, size_t len)
1051 struct wpa_supplicant *wpa_s = ctx;
1055 wpa_hexdump_ascii(MSG_DEBUG, "EAP method updated anonymous_identity",
1058 if (wpa_s->current_ssid == NULL)
1062 if (wpa_config_set(wpa_s->current_ssid, "anonymous_identity",
1066 str = os_malloc(len * 2 + 1);
1069 wpa_snprintf_hex(str, len * 2 + 1, id, len);
1070 res = wpa_config_set(wpa_s->current_ssid, "anonymous_identity",
1077 if (wpa_s->conf->update_config) {
1078 res = wpa_config_write(wpa_s->confname, wpa_s->conf);
1080 wpa_printf(MSG_DEBUG, "Failed to update config after "
1081 "anonymous_id update");
1085 #endif /* IEEE8021X_EAPOL */
1088 int wpa_supplicant_init_eapol(struct wpa_supplicant *wpa_s)
1090 #ifdef IEEE8021X_EAPOL
1091 struct eapol_ctx *ctx;
1092 ctx = os_zalloc(sizeof(*ctx));
1094 wpa_printf(MSG_ERROR, "Failed to allocate EAPOL context.");
1099 ctx->msg_ctx = wpa_s;
1100 ctx->eapol_send_ctx = wpa_s;
1102 ctx->eapol_done_cb = wpa_supplicant_notify_eapol_done;
1103 ctx->eapol_send = wpa_supplicant_eapol_send;
1104 ctx->set_wep_key = wpa_eapol_set_wep_key;
1105 #ifndef CONFIG_NO_CONFIG_BLOBS
1106 ctx->set_config_blob = wpa_supplicant_set_config_blob;
1107 ctx->get_config_blob = wpa_supplicant_get_config_blob;
1108 #endif /* CONFIG_NO_CONFIG_BLOBS */
1109 ctx->aborted_cached = wpa_supplicant_aborted_cached;
1110 ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path;
1111 ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path;
1112 ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path;
1113 ctx->openssl_ciphers = wpa_s->conf->openssl_ciphers;
1114 ctx->wps = wpa_s->wps;
1115 ctx->eap_param_needed = wpa_supplicant_eap_param_needed;
1116 #ifdef CONFIG_EAP_PROXY
1117 ctx->eap_proxy_cb = wpa_supplicant_eap_proxy_cb;
1118 ctx->eap_proxy_notify_sim_status =
1119 wpa_supplicant_eap_proxy_notify_sim_status;
1120 #endif /* CONFIG_EAP_PROXY */
1121 ctx->port_cb = wpa_supplicant_port_cb;
1122 ctx->cb = wpa_supplicant_eapol_cb;
1123 ctx->cert_cb = wpa_supplicant_cert_cb;
1124 ctx->cert_in_cb = wpa_s->conf->cert_in_cb;
1125 ctx->status_cb = wpa_supplicant_status_cb;
1126 ctx->eap_error_cb = wpa_supplicant_eap_error_cb;
1127 ctx->set_anon_id = wpa_supplicant_set_anon_id;
1128 ctx->cb_ctx = wpa_s;
1129 wpa_s->eapol = eapol_sm_init(ctx);
1130 if (wpa_s->eapol == NULL) {
1132 wpa_printf(MSG_ERROR, "Failed to initialize EAPOL state "
1136 #endif /* IEEE8021X_EAPOL */
1142 #ifndef CONFIG_NO_WPA
1144 static void wpa_supplicant_set_rekey_offload(void *ctx,
1145 const u8 *kek, size_t kek_len,
1146 const u8 *kck, size_t kck_len,
1147 const u8 *replay_ctr)
1149 struct wpa_supplicant *wpa_s = ctx;
1151 wpa_drv_set_rekey_info(wpa_s, kek, kek_len, kck, kck_len, replay_ctr);
1155 static int wpa_supplicant_key_mgmt_set_pmk(void *ctx, const u8 *pmk,
1158 struct wpa_supplicant *wpa_s = ctx;
1160 if (wpa_s->conf->key_mgmt_offload &&
1161 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD))
1162 return wpa_drv_set_key(wpa_s, WPA_ALG_PMK, NULL, 0, 0,
1163 NULL, 0, pmk, pmk_len);
1169 static void wpa_supplicant_fils_hlp_rx(void *ctx, const u8 *dst, const u8 *src,
1170 const u8 *pkt, size_t pkt_len)
1172 struct wpa_supplicant *wpa_s = ctx;
1176 hexlen = pkt_len * 2 + 1;
1177 hex = os_malloc(hexlen);
1180 wpa_snprintf_hex(hex, hexlen, pkt, pkt_len);
1181 wpa_msg(wpa_s, MSG_INFO, FILS_HLP_RX "dst=" MACSTR " src=" MACSTR
1182 " frame=%s", MAC2STR(dst), MAC2STR(src), hex);
1187 static int wpa_supplicant_channel_info(void *_wpa_s,
1188 struct wpa_channel_info *ci)
1190 struct wpa_supplicant *wpa_s = _wpa_s;
1192 return wpa_drv_channel_info(wpa_s, ci);
1195 #endif /* CONFIG_NO_WPA */
1198 int wpa_supplicant_init_wpa(struct wpa_supplicant *wpa_s)
1200 #ifndef CONFIG_NO_WPA
1201 struct wpa_sm_ctx *ctx;
1202 ctx = os_zalloc(sizeof(*ctx));
1204 wpa_printf(MSG_ERROR, "Failed to allocate WPA context.");
1209 ctx->msg_ctx = wpa_s;
1210 ctx->set_state = _wpa_supplicant_set_state;
1211 ctx->get_state = _wpa_supplicant_get_state;
1212 ctx->deauthenticate = _wpa_supplicant_deauthenticate;
1213 ctx->set_key = wpa_supplicant_set_key;
1214 ctx->get_network_ctx = wpa_supplicant_get_network_ctx;
1215 ctx->get_bssid = wpa_supplicant_get_bssid;
1216 ctx->ether_send = _wpa_ether_send;
1217 ctx->get_beacon_ie = wpa_supplicant_get_beacon_ie;
1218 ctx->alloc_eapol = _wpa_alloc_eapol;
1219 ctx->cancel_auth_timeout = _wpa_supplicant_cancel_auth_timeout;
1220 ctx->add_pmkid = wpa_supplicant_add_pmkid;
1221 ctx->remove_pmkid = wpa_supplicant_remove_pmkid;
1222 #ifndef CONFIG_NO_CONFIG_BLOBS
1223 ctx->set_config_blob = wpa_supplicant_set_config_blob;
1224 ctx->get_config_blob = wpa_supplicant_get_config_blob;
1225 #endif /* CONFIG_NO_CONFIG_BLOBS */
1226 ctx->mlme_setprotection = wpa_supplicant_mlme_setprotection;
1227 #ifdef CONFIG_IEEE80211R
1228 ctx->update_ft_ies = wpa_supplicant_update_ft_ies;
1229 ctx->send_ft_action = wpa_supplicant_send_ft_action;
1230 ctx->mark_authenticated = wpa_supplicant_mark_authenticated;
1231 #endif /* CONFIG_IEEE80211R */
1233 ctx->tdls_get_capa = wpa_supplicant_tdls_get_capa;
1234 ctx->send_tdls_mgmt = wpa_supplicant_send_tdls_mgmt;
1235 ctx->tdls_oper = wpa_supplicant_tdls_oper;
1236 ctx->tdls_peer_addset = wpa_supplicant_tdls_peer_addset;
1237 ctx->tdls_enable_channel_switch =
1238 wpa_supplicant_tdls_enable_channel_switch;
1239 ctx->tdls_disable_channel_switch =
1240 wpa_supplicant_tdls_disable_channel_switch;
1241 #endif /* CONFIG_TDLS */
1242 ctx->set_rekey_offload = wpa_supplicant_set_rekey_offload;
1243 ctx->key_mgmt_set_pmk = wpa_supplicant_key_mgmt_set_pmk;
1244 ctx->fils_hlp_rx = wpa_supplicant_fils_hlp_rx;
1245 ctx->channel_info = wpa_supplicant_channel_info;
1247 wpa_s->wpa = wpa_sm_init(ctx);
1248 if (wpa_s->wpa == NULL) {
1249 wpa_printf(MSG_ERROR, "Failed to initialize WPA state "
1254 #endif /* CONFIG_NO_WPA */
1260 void wpa_supplicant_rsn_supp_set_config(struct wpa_supplicant *wpa_s,
1261 struct wpa_ssid *ssid)
1263 struct rsn_supp_config conf;
1265 os_memset(&conf, 0, sizeof(conf));
1266 conf.network_ctx = ssid;
1267 conf.allowed_pairwise_cipher = ssid->pairwise_cipher;
1268 #ifdef IEEE8021X_EAPOL
1269 conf.proactive_key_caching = ssid->proactive_key_caching < 0 ?
1270 wpa_s->conf->okc : ssid->proactive_key_caching;
1271 conf.eap_workaround = ssid->eap_workaround;
1272 conf.eap_conf_ctx = &ssid->eap;
1273 #endif /* IEEE8021X_EAPOL */
1274 conf.ssid = ssid->ssid;
1275 conf.ssid_len = ssid->ssid_len;
1276 conf.wpa_ptk_rekey = ssid->wpa_ptk_rekey;
1278 if (ssid->p2p_group && wpa_s->current_bss &&
1279 !wpa_s->p2p_disable_ip_addr_req) {
1281 p2p = wpa_bss_get_vendor_ie_multi(wpa_s->current_bss,
1282 P2P_IE_VENDOR_TYPE);
1285 group_capab = p2p_get_group_capab(p2p);
1287 P2P_GROUP_CAPAB_IP_ADDR_ALLOCATION)
1292 #endif /* CONFIG_P2P */
1293 conf.wpa_rsc_relaxation = wpa_s->conf->wpa_rsc_relaxation;
1295 if (wpa_key_mgmt_fils(wpa_s->key_mgmt))
1296 conf.fils_cache_id =
1297 wpa_bss_get_fils_cache_id(wpa_s->current_bss);
1298 #endif /* CONFIG_FILS */
1300 wpa_sm_set_config(wpa_s->wpa, ssid ? &conf : NULL);