1 /*
2  * WPA Supplicant - Glue code to setup EAPOL and RSN modules
3  * Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi>
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License version 2 as
7  * published by the Free Software Foundation.
8  *
9  * Alternatively, this software may be distributed under the terms of BSD
10  * license.
11  *
12  * See README and COPYING for more details.
13  */
14 
15 #include "includes.h"
16 
17 #include "common.h"
18 #include "eapol_supp/eapol_supp_sm.h"
19 #include "rsn_supp/wpa.h"
20 #include "eloop.h"
21 #include "config.h"
22 #include "l2_packet/l2_packet.h"
23 #include "common/wpa_common.h"
24 #include "wpa_supplicant_i.h"
25 #include "driver_i.h"
26 #include "rsn_supp/pmksa_cache.h"
27 #include "mlme.h"
28 #include "sme.h"
29 #include "common/ieee802_11_defs.h"
30 #include "common/wpa_ctrl.h"
31 #include "wpas_glue.h"
32 #include "wps_supplicant.h"
33 #include "bss.h"
34 #include "scan.h"
35 
36 
37 #ifndef CONFIG_NO_CONFIG_BLOBS
38 #if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA)
39 static void wpa_supplicant_set_config_blob(void *ctx,
40 					   struct wpa_config_blob *blob)
41 {
42 	struct wpa_supplicant *wpa_s = ctx;
43 	wpa_config_set_blob(wpa_s->conf, blob);
44 	if (wpa_s->conf->update_config) {
45 		int ret = wpa_config_write(wpa_s->confname, wpa_s->conf);
46 		if (ret) {
47 			wpa_printf(MSG_DEBUG, "Failed to update config after "
48 				   "blob set");
49 		}
50 	}
51 }
52 
53 
54 static const struct wpa_config_blob *
55 wpa_supplicant_get_config_blob(void *ctx, const char *name)
56 {
57 	struct wpa_supplicant *wpa_s = ctx;
58 	return wpa_config_get_blob(wpa_s->conf, name);
59 }
60 #endif /* defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA) */
61 #endif /* CONFIG_NO_CONFIG_BLOBS */
62 
63 
64 #if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA)
65 static u8 * wpa_alloc_eapol(const struct wpa_supplicant *wpa_s, u8 type,
66 			    const void *data, u16 data_len,
67 			    size_t *msg_len, void **data_pos)
68 {
69 	struct ieee802_1x_hdr *hdr;
70 
71 	*msg_len = sizeof(*hdr) + data_len;
72 	hdr = os_malloc(*msg_len);
73 	if (hdr == NULL)
74 		return NULL;
75 
76 	hdr->version = wpa_s->conf->eapol_version;
77 	hdr->type = type;
78 	hdr->length = host_to_be16(data_len);
79 
80 	if (data)
81 		os_memcpy(hdr + 1, data, data_len);
82 	else
83 		os_memset(hdr + 1, 0, data_len);
84 
85 	if (data_pos)
86 		*data_pos = hdr + 1;
87 
88 	return (u8 *) hdr;
89 }
90 
91 
92 /**
93  * wpa_ether_send - Send Ethernet frame
94  * @wpa_s: Pointer to wpa_supplicant data
95  * @dest: Destination MAC address
96  * @proto: Ethertype in host byte order
97  * @buf: Frame payload starting from IEEE 802.1X header
98  * @len: Frame payload length
99  * Returns: >=0 on success, <0 on failure
100  */
101 static int wpa_ether_send(struct wpa_supplicant *wpa_s, const u8 *dest,
102 			  u16 proto, const u8 *buf, size_t len)
103 {
104 	if (wpa_s->l2) {
105 		return l2_packet_send(wpa_s->l2, dest, proto, buf, len);
106 	}
107 
108 	return wpa_drv_send_eapol(wpa_s, dest, proto, buf, len);
109 }
110 #endif /* IEEE8021X_EAPOL || !CONFIG_NO_WPA */
111 
112 
113 #ifdef IEEE8021X_EAPOL
114 
115 /**
116  * wpa_supplicant_eapol_send - Send IEEE 802.1X EAPOL packet to Authenticator
117  * @ctx: Pointer to wpa_supplicant data (wpa_s)
118  * @type: IEEE 802.1X packet type (IEEE802_1X_TYPE_*)
119  * @buf: EAPOL payload (after IEEE 802.1X header)
120  * @len: EAPOL payload length
121  * Returns: >=0 on success, <0 on failure
122  *
123  * This function adds Ethernet and IEEE 802.1X header and sends the EAPOL frame
124  * to the current Authenticator.
125  */
126 static int wpa_supplicant_eapol_send(void *ctx, int type, const u8 *buf,
127 				     size_t len)
128 {
129 	struct wpa_supplicant *wpa_s = ctx;
130 	u8 *msg, *dst, bssid[ETH_ALEN];
131 	size_t msglen;
132 	int res;
133 
134 	/* TODO: could add l2_packet_sendmsg that allows fragments to avoid
135 	 * extra copy here */
136 
137 	if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
138 	    wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) {
139 		/* Current SSID is not using IEEE 802.1X/EAP, so drop possible
140 		 * EAPOL frames (mainly, EAPOL-Start) from EAPOL state
141 		 * machines. */
142 		wpa_printf(MSG_DEBUG, "WPA: drop TX EAPOL in non-IEEE 802.1X "
143 			   "mode (type=%d len=%lu)", type,
144 			   (unsigned long) len);
145 		return -1;
146 	}
147 
148 	if (pmksa_cache_get_current(wpa_s->wpa) &&
149 	    type == IEEE802_1X_TYPE_EAPOL_START) {
150 		/* Trying to use PMKSA caching - do not send EAPOL-Start frames
151 		 * since they will trigger full EAPOL authentication. */
152 		wpa_printf(MSG_DEBUG, "RSN: PMKSA caching - do not send "
153 			   "EAPOL-Start");
154 		return -1;
155 	}
156 
157 	if (is_zero_ether_addr(wpa_s->bssid)) {
158 		wpa_printf(MSG_DEBUG, "BSSID not set when trying to send an "
159 			   "EAPOL frame");
160 		if (wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
161 		    !is_zero_ether_addr(bssid)) {
162 			dst = bssid;
163 			wpa_printf(MSG_DEBUG, "Using current BSSID " MACSTR
164 				   " from the driver as the EAPOL destination",
165 				   MAC2STR(dst));
166 		} else {
167 			dst = wpa_s->last_eapol_src;
168 			wpa_printf(MSG_DEBUG, "Using the source address of the"
169 				   " last received EAPOL frame " MACSTR " as "
170 				   "the EAPOL destination",
171 				   MAC2STR(dst));
172 		}
173 	} else {
174 		/* BSSID was already set (from (Re)Assoc event, so use it as
175 		 * the EAPOL destination. */
176 		dst = wpa_s->bssid;
177 	}
178 
179 	msg = wpa_alloc_eapol(wpa_s, type, buf, len, &msglen, NULL);
180 	if (msg == NULL)
181 		return -1;
182 
183 	wpa_printf(MSG_DEBUG, "TX EAPOL: dst=" MACSTR, MAC2STR(dst));
184 	wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", msg, msglen);
185 	res = wpa_ether_send(wpa_s, dst, ETH_P_EAPOL, msg, msglen);
186 	os_free(msg);
187 	return res;
188 }
189 
190 
191 /**
192  * wpa_eapol_set_wep_key - set WEP key for the driver
193  * @ctx: Pointer to wpa_supplicant data (wpa_s)
194  * @unicast: 1 = individual unicast key, 0 = broadcast key
195  * @keyidx: WEP key index (0..3)
196  * @key: Pointer to key data
197  * @keylen: Key length in bytes
198  * Returns: 0 on success or < 0 on error.
199  */
200 static int wpa_eapol_set_wep_key(void *ctx, int unicast, int keyidx,
201 				 const u8 *key, size_t keylen)
202 {
203 	struct wpa_supplicant *wpa_s = ctx;
204 	if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
205 		int cipher = (keylen == 5) ? WPA_CIPHER_WEP40 :
206 			WPA_CIPHER_WEP104;
207 		if (unicast)
208 			wpa_s->pairwise_cipher = cipher;
209 		else
210 			wpa_s->group_cipher = cipher;
211 	}
212 	return wpa_drv_set_key(wpa_s, WPA_ALG_WEP,
213 			       unicast ? wpa_s->bssid :
214 			       (u8 *) "\xff\xff\xff\xff\xff\xff",
215 			       keyidx, unicast, (u8 *) "", 0, key, keylen);
216 }
217 
218 
219 static void wpa_supplicant_aborted_cached(void *ctx)
220 {
221 	struct wpa_supplicant *wpa_s = ctx;
222 	wpa_sm_aborted_cached(wpa_s->wpa);
223 }
224 
225 
226 static void wpa_supplicant_eapol_cb(struct eapol_sm *eapol, int success,
227 				    void *ctx)
228 {
229 	struct wpa_supplicant *wpa_s = ctx;
230 	int res, pmk_len;
231 	u8 pmk[PMK_LEN];
232 
233 	wpa_printf(MSG_DEBUG, "EAPOL authentication completed %ssuccessfully",
234 		   success ? "" : "un");
235 
236 	if (wpas_wps_eapol_cb(wpa_s) > 0)
237 		return;
238 
239 	if (!success) {
240 		/*
241 		 * Make sure we do not get stuck here waiting for long EAPOL
242 		 * timeout if the AP does not disconnect in case of
243 		 * authentication failure.
244 		 */
245 		wpa_supplicant_req_auth_timeout(wpa_s, 2, 0);
246 	}
247 
248 	if (!success || !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE))
249 		return;
250 
251 	if (!wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt))
252 		return;
253 
254 	wpa_printf(MSG_DEBUG, "Configure PMK for driver-based RSN 4-way "
255 		   "handshake");
256 
257 	pmk_len = PMK_LEN;
258 	res = eapol_sm_get_key(eapol, pmk, PMK_LEN);
259 	if (res) {
260 		/*
261 		 * EAP-LEAP is an exception from other EAP methods: it
262 		 * uses only 16-byte PMK.
263 		 */
264 		res = eapol_sm_get_key(eapol, pmk, 16);
265 		pmk_len = 16;
266 	}
267 
268 	if (res) {
269 		wpa_printf(MSG_DEBUG, "Failed to get PMK from EAPOL state "
270 			   "machines");
271 		return;
272 	}
273 
274 	if (wpa_drv_set_key(wpa_s, WPA_ALG_PMK, NULL, 0, 0, NULL, 0, pmk,
275 			    pmk_len)) {
276 		wpa_printf(MSG_DEBUG, "Failed to set PMK to the driver");
277 	}
278 
279 	wpa_supplicant_cancel_scan(wpa_s);
280 	wpa_supplicant_cancel_auth_timeout(wpa_s);
281 	wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
282 
283 }
284 
285 
286 static void wpa_supplicant_notify_eapol_done(void *ctx)
287 {
288 	struct wpa_supplicant *wpa_s = ctx;
289 	wpa_msg(wpa_s, MSG_DEBUG, "WPA: EAPOL processing complete");
290 	if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
291 		wpa_supplicant_set_state(wpa_s, WPA_4WAY_HANDSHAKE);
292 	} else {
293 		wpa_supplicant_cancel_auth_timeout(wpa_s);
294 		wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
295 	}
296 }
297 
298 #endif /* IEEE8021X_EAPOL */
299 
300 
301 #ifndef CONFIG_NO_WPA
302 
303 static int wpa_get_beacon_ie(struct wpa_supplicant *wpa_s)
304 {
305 	int ret = 0;
306 	struct wpa_bss *curr = NULL, *bss;
307 	struct wpa_ssid *ssid = wpa_s->current_ssid;
308 	const u8 *ie;
309 
310 	dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
311 		if (os_memcmp(bss->bssid, wpa_s->bssid, ETH_ALEN) != 0)
312 			continue;
313 		if (ssid == NULL ||
314 		    ((bss->ssid_len == ssid->ssid_len &&
315 		      os_memcmp(bss->ssid, ssid->ssid, ssid->ssid_len) == 0) ||
316 		     ssid->ssid_len == 0)) {
317 			curr = bss;
318 			break;
319 		}
320 	}
321 
322 	if (curr) {
323 		ie = wpa_bss_get_vendor_ie(curr, WPA_IE_VENDOR_TYPE);
324 		if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
325 			ret = -1;
326 
327 		ie = wpa_bss_get_ie(curr, WLAN_EID_RSN);
328 		if (wpa_sm_set_ap_rsn_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
329 			ret = -1;
330 	} else {
331 		ret = -1;
332 	}
333 
334 	return ret;
335 }
336 
337 
338 static int wpa_supplicant_get_beacon_ie(void *ctx)
339 {
340 	struct wpa_supplicant *wpa_s = ctx;
341 	if (wpa_get_beacon_ie(wpa_s) == 0) {
342 		return 0;
343 	}
344 
345 	/* No WPA/RSN IE found in the cached scan results. Try to get updated
346 	 * scan results from the driver. */
347 	if (wpa_supplicant_update_scan_results(wpa_s) < 0)
348 		return -1;
349 
350 	return wpa_get_beacon_ie(wpa_s);
351 }
352 
353 
354 static u8 * _wpa_alloc_eapol(void *wpa_s, u8 type,
355 			     const void *data, u16 data_len,
356 			     size_t *msg_len, void **data_pos)
357 {
358 	return wpa_alloc_eapol(wpa_s, type, data, data_len, msg_len, data_pos);
359 }
360 
361 
362 static int _wpa_ether_send(void *wpa_s, const u8 *dest, u16 proto,
363 			   const u8 *buf, size_t len)
364 {
365 	return wpa_ether_send(wpa_s, dest, proto, buf, len);
366 }
367 
368 
369 static void _wpa_supplicant_cancel_auth_timeout(void *wpa_s)
370 {
371 	wpa_supplicant_cancel_auth_timeout(wpa_s);
372 }
373 
374 
375 static void _wpa_supplicant_set_state(void *wpa_s, enum wpa_states state)
376 {
377 	wpa_supplicant_set_state(wpa_s, state);
378 }
379 
380 
381 /**
382  * wpa_supplicant_get_state - Get the connection state
383  * @wpa_s: Pointer to wpa_supplicant data
384  * Returns: The current connection state (WPA_*)
385  */
386 static enum wpa_states wpa_supplicant_get_state(struct wpa_supplicant *wpa_s)
387 {
388 	return wpa_s->wpa_state;
389 }
390 
391 
392 static enum wpa_states _wpa_supplicant_get_state(void *wpa_s)
393 {
394 	return wpa_supplicant_get_state(wpa_s);
395 }
396 
397 
398 static void _wpa_supplicant_disassociate(void *wpa_s, int reason_code)
399 {
400 	wpa_supplicant_disassociate(wpa_s, reason_code);
401 	/* Schedule a scan to make sure we continue looking for networks */
402 	wpa_supplicant_req_scan(wpa_s, 5, 0);
403 }
404 
405 
406 static void _wpa_supplicant_deauthenticate(void *wpa_s, int reason_code)
407 {
408 	wpa_supplicant_deauthenticate(wpa_s, reason_code);
409 	/* Schedule a scan to make sure we continue looking for networks */
410 	wpa_supplicant_req_scan(wpa_s, 5, 0);
411 }
412 
413 
414 static void * wpa_supplicant_get_network_ctx(void *wpa_s)
415 {
416 	return wpa_supplicant_get_ssid(wpa_s);
417 }
418 
419 
420 static int wpa_supplicant_get_bssid(void *ctx, u8 *bssid)
421 {
422 	struct wpa_supplicant *wpa_s = ctx;
423 	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) {
424 		os_memcpy(bssid, wpa_s->bssid, ETH_ALEN);
425 		return 0;
426 	}
427 	return wpa_drv_get_bssid(wpa_s, bssid);
428 }
429 
430 
431 static int wpa_supplicant_set_key(void *_wpa_s, enum wpa_alg alg,
432 				  const u8 *addr, int key_idx, int set_tx,
433 				  const u8 *seq, size_t seq_len,
434 				  const u8 *key, size_t key_len)
435 {
436 	struct wpa_supplicant *wpa_s = _wpa_s;
437 	if (alg == WPA_ALG_TKIP && key_idx == 0 && key_len == 32) {
438 		/* Clear the MIC error counter when setting a new PTK. */
439 		wpa_s->mic_errors_seen = 0;
440 	}
441 	return wpa_drv_set_key(wpa_s, alg, addr, key_idx, set_tx, seq, seq_len,
442 			       key, key_len);
443 }
444 
445 
446 static int wpa_supplicant_mlme_setprotection(void *wpa_s, const u8 *addr,
447 					     int protection_type,
448 					     int key_type)
449 {
450 	return wpa_drv_mlme_setprotection(wpa_s, addr, protection_type,
451 					  key_type);
452 }
453 
454 
455 static int wpa_supplicant_add_pmkid(void *wpa_s,
456 				    const u8 *bssid, const u8 *pmkid)
457 {
458 	return wpa_drv_add_pmkid(wpa_s, bssid, pmkid);
459 }
460 
461 
462 static int wpa_supplicant_remove_pmkid(void *wpa_s,
463 				       const u8 *bssid, const u8 *pmkid)
464 {
465 	return wpa_drv_remove_pmkid(wpa_s, bssid, pmkid);
466 }
467 
468 
469 #ifdef CONFIG_IEEE80211R
470 static int wpa_supplicant_update_ft_ies(void *ctx, const u8 *md,
471 					const u8 *ies, size_t ies_len)
472 {
473 	struct wpa_supplicant *wpa_s = ctx;
474 	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
475 		return ieee80211_sta_update_ft_ies(wpa_s, md, ies, ies_len);
476 	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
477 		return sme_update_ft_ies(wpa_s, md, ies, ies_len);
478 	return wpa_drv_update_ft_ies(wpa_s, md, ies, ies_len);
479 }
480 
481 
482 static int wpa_supplicant_send_ft_action(void *ctx, u8 action,
483 					 const u8 *target_ap,
484 					 const u8 *ies, size_t ies_len)
485 {
486 	struct wpa_supplicant *wpa_s = ctx;
487 	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
488 		return ieee80211_sta_send_ft_action(wpa_s, action, target_ap,
489 						    ies, ies_len);
490 	return wpa_drv_send_ft_action(wpa_s, action, target_ap, ies, ies_len);
491 }
492 
493 
494 static int wpa_supplicant_mark_authenticated(void *ctx, const u8 *target_ap)
495 {
496 	struct wpa_supplicant *wpa_s = ctx;
497 	struct wpa_driver_auth_params params;
498 	struct wpa_bss *bss;
499 
500 	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
501 		return -1;
502 
503 	bss = wpa_bss_get_bssid(wpa_s, target_ap);
504 	if (bss == NULL)
505 		return -1;
506 
507 	os_memset(&params, 0, sizeof(params));
508 	params.bssid = target_ap;
509 	params.freq = bss->freq;
510 	params.ssid = bss->ssid;
511 	params.ssid_len = bss->ssid_len;
512 	params.auth_alg = WPA_AUTH_ALG_FT;
513 	params.local_state_change = 1;
514 	return wpa_drv_authenticate(wpa_s, &params);
515 }
516 #endif /* CONFIG_IEEE80211R */
517 
518 #endif /* CONFIG_NO_WPA */
519 
520 
521 #ifdef IEEE8021X_EAPOL
522 #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG)
523 static void wpa_supplicant_eap_param_needed(void *ctx, const char *field,
524 					    const char *txt)
525 {
526 	struct wpa_supplicant *wpa_s = ctx;
527 	struct wpa_ssid *ssid = wpa_s->current_ssid;
528 	char *buf;
529 	size_t buflen;
530 	int len;
531 
532 	if (ssid == NULL)
533 		return;
534 
535 	buflen = 100 + os_strlen(txt) + ssid->ssid_len;
536 	buf = os_malloc(buflen);
537 	if (buf == NULL)
538 		return;
539 	len = os_snprintf(buf, buflen,
540 			  WPA_CTRL_REQ "%s-%d:%s needed for SSID ",
541 			  field, ssid->id, txt);
542 	if (len < 0 || (size_t) len >= buflen) {
543 		os_free(buf);
544 		return;
545 	}
546 	if (ssid->ssid && buflen > len + ssid->ssid_len) {
547 		os_memcpy(buf + len, ssid->ssid, ssid->ssid_len);
548 		len += ssid->ssid_len;
549 		buf[len] = '\0';
550 	}
551 	buf[buflen - 1] = '\0';
552 	wpa_msg(wpa_s, MSG_INFO, "%s", buf);
553 	os_free(buf);
554 }
555 #else /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
556 #define wpa_supplicant_eap_param_needed NULL
557 #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
558 
559 
560 static void wpa_supplicant_port_cb(void *ctx, int authorized)
561 {
562 	struct wpa_supplicant *wpa_s = ctx;
563 	wpa_printf(MSG_DEBUG, "EAPOL: Supplicant port status: %s",
564 		   authorized ? "Authorized" : "Unauthorized");
565 	wpa_drv_set_supp_port(wpa_s, authorized);
566 }
567 #endif /* IEEE8021X_EAPOL */
568 
569 
570 int wpa_supplicant_init_eapol(struct wpa_supplicant *wpa_s)
571 {
572 #ifdef IEEE8021X_EAPOL
573 	struct eapol_ctx *ctx;
574 	ctx = os_zalloc(sizeof(*ctx));
575 	if (ctx == NULL) {
576 		wpa_printf(MSG_ERROR, "Failed to allocate EAPOL context.");
577 		return -1;
578 	}
579 
580 	ctx->ctx = wpa_s;
581 	ctx->msg_ctx = wpa_s;
582 	ctx->eapol_send_ctx = wpa_s;
583 	ctx->preauth = 0;
584 	ctx->eapol_done_cb = wpa_supplicant_notify_eapol_done;
585 	ctx->eapol_send = wpa_supplicant_eapol_send;
586 	ctx->set_wep_key = wpa_eapol_set_wep_key;
587 	ctx->set_config_blob = wpa_supplicant_set_config_blob;
588 	ctx->get_config_blob = wpa_supplicant_get_config_blob;
589 	ctx->aborted_cached = wpa_supplicant_aborted_cached;
590 	ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path;
591 	ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path;
592 	ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path;
593 	ctx->wps = wpa_s->wps;
594 	ctx->eap_param_needed = wpa_supplicant_eap_param_needed;
595 	ctx->port_cb = wpa_supplicant_port_cb;
596 	ctx->cb = wpa_supplicant_eapol_cb;
597 	ctx->cb_ctx = wpa_s;
598 	wpa_s->eapol = eapol_sm_init(ctx);
599 	if (wpa_s->eapol == NULL) {
600 		os_free(ctx);
601 		wpa_printf(MSG_ERROR, "Failed to initialize EAPOL state "
602 			   "machines.");
603 		return -1;
604 	}
605 #endif /* IEEE8021X_EAPOL */
606 
607 	return 0;
608 }
609 
610 
611 int wpa_supplicant_init_wpa(struct wpa_supplicant *wpa_s)
612 {
613 #ifndef CONFIG_NO_WPA
614 	struct wpa_sm_ctx *ctx;
615 	ctx = os_zalloc(sizeof(*ctx));
616 	if (ctx == NULL) {
617 		wpa_printf(MSG_ERROR, "Failed to allocate WPA context.");
618 		return -1;
619 	}
620 
621 	ctx->ctx = wpa_s;
622 	ctx->msg_ctx = wpa_s;
623 	ctx->set_state = _wpa_supplicant_set_state;
624 	ctx->get_state = _wpa_supplicant_get_state;
625 	ctx->deauthenticate = _wpa_supplicant_deauthenticate;
626 	ctx->disassociate = _wpa_supplicant_disassociate;
627 	ctx->set_key = wpa_supplicant_set_key;
628 	ctx->get_network_ctx = wpa_supplicant_get_network_ctx;
629 	ctx->get_bssid = wpa_supplicant_get_bssid;
630 	ctx->ether_send = _wpa_ether_send;
631 	ctx->get_beacon_ie = wpa_supplicant_get_beacon_ie;
632 	ctx->alloc_eapol = _wpa_alloc_eapol;
633 	ctx->cancel_auth_timeout = _wpa_supplicant_cancel_auth_timeout;
634 	ctx->add_pmkid = wpa_supplicant_add_pmkid;
635 	ctx->remove_pmkid = wpa_supplicant_remove_pmkid;
636 #ifndef CONFIG_NO_CONFIG_BLOBS
637 	ctx->set_config_blob = wpa_supplicant_set_config_blob;
638 	ctx->get_config_blob = wpa_supplicant_get_config_blob;
639 #endif /* CONFIG_NO_CONFIG_BLOBS */
640 	ctx->mlme_setprotection = wpa_supplicant_mlme_setprotection;
641 #ifdef CONFIG_IEEE80211R
642 	ctx->update_ft_ies = wpa_supplicant_update_ft_ies;
643 	ctx->send_ft_action = wpa_supplicant_send_ft_action;
644 	ctx->mark_authenticated = wpa_supplicant_mark_authenticated;
645 #endif /* CONFIG_IEEE80211R */
646 
647 	wpa_s->wpa = wpa_sm_init(ctx);
648 	if (wpa_s->wpa == NULL) {
649 		wpa_printf(MSG_ERROR, "Failed to initialize WPA state "
650 			   "machine");
651 		return -1;
652 	}
653 #endif /* CONFIG_NO_WPA */
654 
655 	return 0;
656 }
657 
658 
659 void wpa_supplicant_rsn_supp_set_config(struct wpa_supplicant *wpa_s,
660 					struct wpa_ssid *ssid)
661 {
662 	struct rsn_supp_config conf;
663 	if (ssid) {
664 		os_memset(&conf, 0, sizeof(conf));
665 		conf.network_ctx = ssid;
666 		conf.peerkey_enabled = ssid->peerkey;
667 		conf.allowed_pairwise_cipher = ssid->pairwise_cipher;
668 #ifdef IEEE8021X_EAPOL
669 		conf.eap_workaround = ssid->eap_workaround;
670 		conf.eap_conf_ctx = &ssid->eap;
671 #endif /* IEEE8021X_EAPOL */
672 		conf.ssid = ssid->ssid;
673 		conf.ssid_len = ssid->ssid_len;
674 		conf.wpa_ptk_rekey = ssid->wpa_ptk_rekey;
675 	}
676 	wpa_sm_set_config(wpa_s->wpa, ssid ? &conf : NULL);
677 }
678