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1 /*
2  * WPA Supplicant - Glue code to setup EAPOL and RSN modules
3  * Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi>
4  *
5  * This software may be distributed under the terms of the BSD license.
6  * See README for more details.
7  */
8 
9 #include "includes.h"
10 
11 #include "common.h"
12 #include "eapol_supp/eapol_supp_sm.h"
13 #include "eap_peer/eap.h"
14 #include "rsn_supp/wpa.h"
15 #include "eloop.h"
16 #include "config.h"
17 #include "l2_packet/l2_packet.h"
18 #include "common/wpa_common.h"
19 #include "common/ptksa_cache.h"
20 #include "wpa_supplicant_i.h"
21 #include "driver_i.h"
22 #include "rsn_supp/pmksa_cache.h"
23 #include "sme.h"
24 #include "common/ieee802_11_defs.h"
25 #include "common/wpa_ctrl.h"
26 #include "wpas_glue.h"
27 #include "wps_supplicant.h"
28 #include "bss.h"
29 #include "scan.h"
30 #include "notify.h"
31 #include "wpas_kay.h"
32 
33 
34 #ifndef CONFIG_NO_CONFIG_BLOBS
35 #if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA)
wpa_supplicant_set_config_blob(void * ctx,struct wpa_config_blob * blob)36 static void wpa_supplicant_set_config_blob(void *ctx,
37 					   struct wpa_config_blob *blob)
38 {
39 	struct wpa_supplicant *wpa_s = ctx;
40 	wpa_config_set_blob(wpa_s->conf, blob);
41 	if (wpa_s->conf->update_config) {
42 		int ret = wpa_config_write(wpa_s->confname, wpa_s->conf);
43 		if (ret) {
44 			wpa_printf(MSG_DEBUG, "Failed to update config after "
45 				   "blob set");
46 		}
47 	}
48 }
49 
50 
51 static const struct wpa_config_blob *
wpa_supplicant_get_config_blob(void * ctx,const char * name)52 wpa_supplicant_get_config_blob(void *ctx, const char *name)
53 {
54 	struct wpa_supplicant *wpa_s = ctx;
55 	return wpa_config_get_blob(wpa_s->conf, name);
56 }
57 #endif /* defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA) */
58 #endif /* CONFIG_NO_CONFIG_BLOBS */
59 
60 
61 #if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA)
wpa_alloc_eapol(const struct wpa_supplicant * wpa_s,u8 type,const void * data,u16 data_len,size_t * msg_len,void ** data_pos)62 static u8 * wpa_alloc_eapol(const struct wpa_supplicant *wpa_s, u8 type,
63 			    const void *data, u16 data_len,
64 			    size_t *msg_len, void **data_pos)
65 {
66 	struct ieee802_1x_hdr *hdr;
67 
68 	*msg_len = sizeof(*hdr) + data_len;
69 	hdr = os_malloc(*msg_len);
70 	if (hdr == NULL)
71 		return NULL;
72 
73 	hdr->version = wpa_s->conf->eapol_version;
74 	hdr->type = type;
75 	hdr->length = host_to_be16(data_len);
76 
77 	if (data)
78 		os_memcpy(hdr + 1, data, data_len);
79 	else
80 		os_memset(hdr + 1, 0, data_len);
81 
82 	if (data_pos)
83 		*data_pos = hdr + 1;
84 
85 	return (u8 *) hdr;
86 }
87 
88 
89 /**
90  * wpa_ether_send - Send Ethernet frame
91  * @wpa_s: Pointer to wpa_supplicant data
92  * @dest: Destination MAC address
93  * @proto: Ethertype in host byte order
94  * @buf: Frame payload starting from IEEE 802.1X header
95  * @len: Frame payload length
96  * Returns: >=0 on success, <0 on failure
97  */
wpa_ether_send(struct wpa_supplicant * wpa_s,const u8 * dest,u16 proto,const u8 * buf,size_t len)98 int wpa_ether_send(struct wpa_supplicant *wpa_s, const u8 *dest,
99 		   u16 proto, const u8 *buf, size_t len)
100 {
101 #ifdef CONFIG_TESTING_OPTIONS
102 	if (wpa_s->ext_eapol_frame_io && proto == ETH_P_EAPOL) {
103 		size_t hex_len = 2 * len + 1;
104 		char *hex = os_malloc(hex_len);
105 
106 		if (hex == NULL)
107 			return -1;
108 		wpa_snprintf_hex(hex, hex_len, buf, len);
109 		wpa_msg(wpa_s, MSG_INFO, "EAPOL-TX " MACSTR " %s",
110 			MAC2STR(dest), hex);
111 		os_free(hex);
112 		return 0;
113 	}
114 #endif /* CONFIG_TESTING_OPTIONS */
115 
116 	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_CONTROL_PORT) {
117 		int encrypt = wpa_s->wpa &&
118 			wpa_sm_has_ptk_installed(wpa_s->wpa);
119 
120 		return wpa_drv_tx_control_port(wpa_s, dest, proto, buf, len,
121 					       !encrypt);
122 	}
123 
124 	if (wpa_s->l2) {
125 		return l2_packet_send(wpa_s->l2, dest, proto, buf, len);
126 	}
127 
128 	return wpa_drv_send_eapol(wpa_s, dest, proto, buf, len);
129 }
130 #endif /* IEEE8021X_EAPOL || !CONFIG_NO_WPA */
131 
132 
133 #ifdef IEEE8021X_EAPOL
134 
135 /**
136  * wpa_supplicant_eapol_send - Send IEEE 802.1X EAPOL packet to Authenticator
137  * @ctx: Pointer to wpa_supplicant data (wpa_s)
138  * @type: IEEE 802.1X packet type (IEEE802_1X_TYPE_*)
139  * @buf: EAPOL payload (after IEEE 802.1X header)
140  * @len: EAPOL payload length
141  * Returns: >=0 on success, <0 on failure
142  *
143  * This function adds Ethernet and IEEE 802.1X header and sends the EAPOL frame
144  * to the current Authenticator.
145  */
wpa_supplicant_eapol_send(void * ctx,int type,const u8 * buf,size_t len)146 static int wpa_supplicant_eapol_send(void *ctx, int type, const u8 *buf,
147 				     size_t len)
148 {
149 	struct wpa_supplicant *wpa_s = ctx;
150 	u8 *msg, *dst, bssid[ETH_ALEN];
151 	size_t msglen;
152 	int res;
153 
154 	/* TODO: could add l2_packet_sendmsg that allows fragments to avoid
155 	 * extra copy here */
156 
157 	if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
158 	    wpa_s->key_mgmt == WPA_KEY_MGMT_OWE ||
159 	    wpa_s->key_mgmt == WPA_KEY_MGMT_DPP ||
160 	    wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) {
161 		/* Current SSID is not using IEEE 802.1X/EAP, so drop possible
162 		 * EAPOL frames (mainly, EAPOL-Start) from EAPOL state
163 		 * machines. */
164 		wpa_printf(MSG_DEBUG, "WPA: drop TX EAPOL in non-IEEE 802.1X "
165 			   "mode (type=%d len=%lu)", type,
166 			   (unsigned long) len);
167 		return -1;
168 	}
169 
170 	if (pmksa_cache_get_current(wpa_s->wpa) &&
171 	    type == IEEE802_1X_TYPE_EAPOL_START) {
172 		/*
173 		 * We were trying to use PMKSA caching and sending EAPOL-Start
174 		 * would abort that and trigger full EAPOL authentication.
175 		 * However, we've already waited for the AP/Authenticator to
176 		 * start 4-way handshake or EAP authentication, and apparently
177 		 * it has not done so since the startWhen timer has reached zero
178 		 * to get the state machine sending EAPOL-Start. This is not
179 		 * really supposed to happen, but an interoperability issue with
180 		 * a deployed AP has been identified where the connection fails
181 		 * due to that AP failing to operate correctly if PMKID is
182 		 * included in the Association Request frame. To work around
183 		 * this, assume PMKSA caching failed and try to initiate full
184 		 * EAP authentication.
185 		 */
186 		if (!wpa_s->current_ssid ||
187 		    wpa_s->current_ssid->eap_workaround) {
188 			wpa_printf(MSG_DEBUG,
189 				   "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");
190 		} else {
191 			wpa_printf(MSG_DEBUG,
192 				   "RSN: PMKSA caching - do not send EAPOL-Start");
193 			return -1;
194 		}
195 	}
196 
197 	if (is_zero_ether_addr(wpa_s->bssid)) {
198 		wpa_printf(MSG_DEBUG, "BSSID not set when trying to send an "
199 			   "EAPOL frame");
200 		if (wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
201 		    !is_zero_ether_addr(bssid)) {
202 			dst = bssid;
203 			wpa_printf(MSG_DEBUG, "Using current BSSID " MACSTR
204 				   " from the driver as the EAPOL destination",
205 				   MAC2STR(dst));
206 		} else {
207 			dst = wpa_s->last_eapol_src;
208 			wpa_printf(MSG_DEBUG, "Using the source address of the"
209 				   " last received EAPOL frame " MACSTR " as "
210 				   "the EAPOL destination",
211 				   MAC2STR(dst));
212 		}
213 	} else {
214 		/* BSSID was already set (from (Re)Assoc event, so use it as
215 		 * the EAPOL destination. */
216 		dst = wpa_s->bssid;
217 	}
218 
219 	msg = wpa_alloc_eapol(wpa_s, type, buf, len, &msglen, NULL);
220 	if (msg == NULL)
221 		return -1;
222 
223 	wpa_printf(MSG_DEBUG, "TX EAPOL: dst=" MACSTR, MAC2STR(dst));
224 	wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", msg, msglen);
225 	res = wpa_ether_send(wpa_s, dst, ETH_P_EAPOL, msg, msglen);
226 	os_free(msg);
227 	return res;
228 }
229 
230 
231 #ifdef CONFIG_WEP
232 /**
233  * wpa_eapol_set_wep_key - set WEP key for the driver
234  * @ctx: Pointer to wpa_supplicant data (wpa_s)
235  * @unicast: 1 = individual unicast key, 0 = broadcast key
236  * @keyidx: WEP key index (0..3)
237  * @key: Pointer to key data
238  * @keylen: Key length in bytes
239  * Returns: 0 on success or < 0 on error.
240  */
wpa_eapol_set_wep_key(void * ctx,int unicast,int keyidx,const u8 * key,size_t keylen)241 static int wpa_eapol_set_wep_key(void *ctx, int unicast, int keyidx,
242 				 const u8 *key, size_t keylen)
243 {
244 	struct wpa_supplicant *wpa_s = ctx;
245 	if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
246 		int cipher = (keylen == 5) ? WPA_CIPHER_WEP40 :
247 			WPA_CIPHER_WEP104;
248 		if (unicast)
249 			wpa_s->pairwise_cipher = cipher;
250 		else
251 			wpa_s->group_cipher = cipher;
252 	}
253 	return wpa_drv_set_key(wpa_s, WPA_ALG_WEP,
254 			       unicast ? wpa_s->bssid : NULL,
255 			       keyidx, unicast, NULL, 0, key, keylen,
256 			       unicast ? KEY_FLAG_PAIRWISE_RX_TX :
257 			       KEY_FLAG_GROUP_RX_TX_DEFAULT);
258 }
259 #endif /* CONFIG_WEP */
260 
261 
wpa_supplicant_aborted_cached(void * ctx)262 static void wpa_supplicant_aborted_cached(void *ctx)
263 {
264 	struct wpa_supplicant *wpa_s = ctx;
265 	wpa_sm_aborted_cached(wpa_s->wpa);
266 }
267 
268 
result_str(enum eapol_supp_result result)269 static const char * result_str(enum eapol_supp_result result)
270 {
271 	switch (result) {
272 	case EAPOL_SUPP_RESULT_FAILURE:
273 		return "FAILURE";
274 	case EAPOL_SUPP_RESULT_SUCCESS:
275 		return "SUCCESS";
276 	case EAPOL_SUPP_RESULT_EXPECTED_FAILURE:
277 		return "EXPECTED_FAILURE";
278 	}
279 	return "?";
280 }
281 
282 
wpa_supplicant_eapol_cb(struct eapol_sm * eapol,enum eapol_supp_result result,void * ctx)283 static void wpa_supplicant_eapol_cb(struct eapol_sm *eapol,
284 				    enum eapol_supp_result result,
285 				    void *ctx)
286 {
287 	struct wpa_supplicant *wpa_s = ctx;
288 	int res, pmk_len;
289 	u8 pmk[PMK_LEN];
290 
291 	wpa_printf(MSG_DEBUG, "EAPOL authentication completed - result=%s",
292 		   result_str(result));
293 
294 	if (wpas_wps_eapol_cb(wpa_s) > 0)
295 		return;
296 
297 	wpa_s->eap_expected_failure = result ==
298 		EAPOL_SUPP_RESULT_EXPECTED_FAILURE;
299 
300 	if (result != EAPOL_SUPP_RESULT_SUCCESS) {
301 		/*
302 		 * Make sure we do not get stuck here waiting for long EAPOL
303 		 * timeout if the AP does not disconnect in case of
304 		 * authentication failure.
305 		 */
306 		wpa_supplicant_req_auth_timeout(wpa_s, 2, 0);
307 	} else {
308 		ieee802_1x_notify_create_actor(wpa_s, wpa_s->last_eapol_src);
309 	}
310 
311 	if (result != EAPOL_SUPP_RESULT_SUCCESS ||
312 	    !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X))
313 		return;
314 
315 	if (!wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt))
316 		return;
317 
318 	wpa_printf(MSG_DEBUG, "Configure PMK for driver-based RSN 4-way "
319 		   "handshake");
320 
321 	pmk_len = PMK_LEN;
322 	if (wpa_key_mgmt_ft(wpa_s->key_mgmt)) {
323 #ifdef CONFIG_IEEE80211R
324 		u8 buf[2 * PMK_LEN];
325 		wpa_printf(MSG_DEBUG, "RSN: Use FT XXKey as PMK for "
326 			   "driver-based 4-way hs and FT");
327 		res = eapol_sm_get_key(eapol, buf, 2 * PMK_LEN);
328 		if (res == 0) {
329 			os_memcpy(pmk, buf + PMK_LEN, PMK_LEN);
330 			os_memset(buf, 0, sizeof(buf));
331 		}
332 #else /* CONFIG_IEEE80211R */
333 		res = -1;
334 #endif /* CONFIG_IEEE80211R */
335 	} else {
336 		res = eapol_sm_get_key(eapol, pmk, PMK_LEN);
337 		if (res) {
338 			/*
339 			 * EAP-LEAP is an exception from other EAP methods: it
340 			 * uses only 16-byte PMK.
341 			 */
342 			res = eapol_sm_get_key(eapol, pmk, 16);
343 			pmk_len = 16;
344 		}
345 	}
346 
347 	if (res) {
348 		wpa_printf(MSG_DEBUG, "Failed to get PMK from EAPOL state "
349 			   "machines");
350 		return;
351 	}
352 
353 	wpa_hexdump_key(MSG_DEBUG, "RSN: Configure PMK for driver-based 4-way "
354 			"handshake", pmk, pmk_len);
355 
356 	if (wpa_drv_set_key(wpa_s, 0, NULL, 0, 0, NULL, 0, pmk,
357 			    pmk_len, KEY_FLAG_PMK)) {
358 		wpa_printf(MSG_DEBUG, "Failed to set PMK to the driver");
359 	}
360 
361 	wpa_supplicant_cancel_scan(wpa_s);
362 	wpa_supplicant_cancel_auth_timeout(wpa_s);
363 	wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
364 
365 }
366 
367 
wpa_supplicant_notify_eapol_done(void * ctx)368 static void wpa_supplicant_notify_eapol_done(void *ctx)
369 {
370 	struct wpa_supplicant *wpa_s = ctx;
371 	wpa_msg(wpa_s, MSG_DEBUG, "WPA: EAPOL processing complete");
372 	if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
373 		wpa_supplicant_set_state(wpa_s, WPA_4WAY_HANDSHAKE);
374 	} else {
375 		wpa_supplicant_cancel_auth_timeout(wpa_s);
376 		wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
377 	}
378 }
379 
380 #endif /* IEEE8021X_EAPOL */
381 
382 
383 #ifndef CONFIG_NO_WPA
wpa_get_beacon_ie(struct wpa_supplicant * wpa_s)384 __attribute__((weak)) int wpa_get_beacon_ie(struct wpa_supplicant *wpa_s)
385 {
386 	int ret = 0;
387 	struct wpa_bss *curr = NULL, *bss;
388 	struct wpa_ssid *ssid = wpa_s->current_ssid;
389 	const u8 *ie;
390 
391 	dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
392 		if (os_memcmp(bss->bssid, wpa_s->bssid, ETH_ALEN) != 0)
393 			continue;
394 		if (ssid == NULL ||
395 		    ((bss->ssid_len == ssid->ssid_len &&
396 		      os_memcmp(bss->ssid, ssid->ssid, ssid->ssid_len) == 0) ||
397 		     ssid->ssid_len == 0)) {
398 			curr = bss;
399 			break;
400 		}
401 #ifdef CONFIG_OWE
402 		if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_OWE) &&
403 		    (bss->flags & WPA_BSS_OWE_TRANSITION)) {
404 			curr = bss;
405 			break;
406 		}
407 #endif /* CONFIG_OWE */
408 	}
409 
410 	if (curr) {
411 		ie = wpa_bss_get_vendor_ie(curr, WPA_IE_VENDOR_TYPE);
412 		if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
413 			ret = -1;
414 
415 		ie = wpa_bss_get_ie(curr, WLAN_EID_RSN);
416 		if (wpa_sm_set_ap_rsn_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
417 			ret = -1;
418 
419 		ie = wpa_bss_get_ie(curr, WLAN_EID_RSNX);
420 		if (wpa_sm_set_ap_rsnxe(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
421 			ret = -1;
422 	} else {
423 		ret = -1;
424 	}
425 
426 	return ret;
427 }
428 
429 
wpa_supplicant_get_beacon_ie(void * ctx)430 static int wpa_supplicant_get_beacon_ie(void *ctx)
431 {
432 	struct wpa_supplicant *wpa_s = ctx;
433 	if (wpa_get_beacon_ie(wpa_s) == 0) {
434 		return 0;
435 	}
436 
437 	/* No WPA/RSN IE found in the cached scan results. Try to get updated
438 	 * scan results from the driver. */
439 	if (wpa_supplicant_update_scan_results(wpa_s) < 0)
440 		return -1;
441 
442 	return wpa_get_beacon_ie(wpa_s);
443 }
444 
445 
_wpa_alloc_eapol(void * wpa_s,u8 type,const void * data,u16 data_len,size_t * msg_len,void ** data_pos)446 static u8 * _wpa_alloc_eapol(void *wpa_s, u8 type,
447 			     const void *data, u16 data_len,
448 			     size_t *msg_len, void **data_pos)
449 {
450 	return wpa_alloc_eapol(wpa_s, type, data, data_len, msg_len, data_pos);
451 }
452 
453 
_wpa_ether_send(void * wpa_s,const u8 * dest,u16 proto,const u8 * buf,size_t len)454 static int _wpa_ether_send(void *wpa_s, const u8 *dest, u16 proto,
455 			   const u8 *buf, size_t len)
456 {
457 	return wpa_ether_send(wpa_s, dest, proto, buf, len);
458 }
459 
460 
_wpa_supplicant_cancel_auth_timeout(void * wpa_s)461 static void _wpa_supplicant_cancel_auth_timeout(void *wpa_s)
462 {
463 	wpa_supplicant_cancel_auth_timeout(wpa_s);
464 }
465 
466 
_wpa_supplicant_set_state(void * wpa_s,enum wpa_states state)467 static void _wpa_supplicant_set_state(void *wpa_s, enum wpa_states state)
468 {
469 	wpa_supplicant_set_state(wpa_s, state);
470 }
471 
472 
473 /**
474  * wpa_supplicant_get_state - Get the connection state
475  * @wpa_s: Pointer to wpa_supplicant data
476  * Returns: The current connection state (WPA_*)
477  */
wpa_supplicant_get_state(struct wpa_supplicant * wpa_s)478 static enum wpa_states wpa_supplicant_get_state(struct wpa_supplicant *wpa_s)
479 {
480 	return wpa_s->wpa_state;
481 }
482 
483 
_wpa_supplicant_get_state(void * wpa_s)484 static enum wpa_states _wpa_supplicant_get_state(void *wpa_s)
485 {
486 	return wpa_supplicant_get_state(wpa_s);
487 }
488 
489 
_wpa_supplicant_deauthenticate(void * wpa_s,u16 reason_code)490 static void _wpa_supplicant_deauthenticate(void *wpa_s, u16 reason_code)
491 {
492 	wpa_supplicant_deauthenticate(wpa_s, reason_code);
493 	/* Schedule a scan to make sure we continue looking for networks */
494 	wpa_supplicant_req_scan(wpa_s, 5, 0);
495 }
496 
497 
_wpa_supplicant_reconnect(void * wpa_s)498 static void _wpa_supplicant_reconnect(void *wpa_s)
499 {
500 	wpa_supplicant_reconnect(wpa_s);
501 }
502 
503 
wpa_supplicant_get_network_ctx(void * wpa_s)504 static void * wpa_supplicant_get_network_ctx(void *wpa_s)
505 {
506 	return wpa_supplicant_get_ssid(wpa_s);
507 }
508 
509 
wpa_supplicant_get_bssid(void * ctx,u8 * bssid)510 static int wpa_supplicant_get_bssid(void *ctx, u8 *bssid)
511 {
512 	struct wpa_supplicant *wpa_s = ctx;
513 	return wpa_drv_get_bssid(wpa_s, bssid);
514 }
515 
516 
wpa_supplicant_set_key(void * _wpa_s,enum wpa_alg alg,const u8 * addr,int key_idx,int set_tx,const u8 * seq,size_t seq_len,const u8 * key,size_t key_len,enum key_flag key_flag)517 static int wpa_supplicant_set_key(void *_wpa_s, enum wpa_alg alg,
518 				  const u8 *addr, int key_idx, int set_tx,
519 				  const u8 *seq, size_t seq_len,
520 				  const u8 *key, size_t key_len,
521 				  enum key_flag key_flag)
522 {
523 	struct wpa_supplicant *wpa_s = _wpa_s;
524 	if (alg == WPA_ALG_TKIP && key_idx == 0 && key_len == 32) {
525 		/* Clear the MIC error counter when setting a new PTK. */
526 		wpa_s->mic_errors_seen = 0;
527 	}
528 #ifdef CONFIG_TESTING_GET_GTK
529 	if (key_idx > 0 && addr && is_broadcast_ether_addr(addr) &&
530 	    alg != WPA_ALG_NONE && key_len <= sizeof(wpa_s->last_gtk)) {
531 		os_memcpy(wpa_s->last_gtk, key, key_len);
532 		wpa_s->last_gtk_len = key_len;
533 	}
534 #endif /* CONFIG_TESTING_GET_GTK */
535 #ifdef CONFIG_TESTING_OPTIONS
536 	if (addr && !is_broadcast_ether_addr(addr) &&
537 	    !(key_flag & KEY_FLAG_MODIFY)) {
538 		wpa_s->last_tk_alg = alg;
539 		os_memcpy(wpa_s->last_tk_addr, addr, ETH_ALEN);
540 		wpa_s->last_tk_key_idx = key_idx;
541 		if (key)
542 			os_memcpy(wpa_s->last_tk, key, key_len);
543 		wpa_s->last_tk_len = key_len;
544 	}
545 #endif /* CONFIG_TESTING_OPTIONS */
546 	return wpa_drv_set_key(wpa_s, alg, addr, key_idx, set_tx, seq, seq_len,
547 			       key, key_len, key_flag);
548 }
549 
550 #ifndef LOS_CONFIG_EXT_DRIVER_NOT_SUPPORT
wpa_supplicant_mlme_setprotection(void * wpa_s,const u8 * addr,int protection_type,int key_type)551 static int wpa_supplicant_mlme_setprotection(void *wpa_s, const u8 *addr,
552 					     int protection_type,
553 					     int key_type)
554 {
555 	return wpa_drv_mlme_setprotection(wpa_s, addr, protection_type,
556 					  key_type);
557 }
558 #endif /* LOS_CONFIG_EXT_DRIVER_NOT_SUPPORT */
559 
560 
wpas_get_network_ctx(struct wpa_supplicant * wpa_s,void * network_ctx)561 static struct wpa_ssid * wpas_get_network_ctx(struct wpa_supplicant *wpa_s,
562 					      void *network_ctx)
563 {
564 	struct wpa_ssid *ssid;
565 
566 	for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
567 		if (network_ctx == ssid)
568 			return ssid;
569 	}
570 
571 	return NULL;
572 }
573 
574 
wpa_supplicant_add_pmkid(void * _wpa_s,void * network_ctx,const u8 * bssid,const u8 * pmkid,const u8 * fils_cache_id,const u8 * pmk,size_t pmk_len,u32 pmk_lifetime,u8 pmk_reauth_threshold,int akmp)575 static int wpa_supplicant_add_pmkid(void *_wpa_s, void *network_ctx,
576 				    const u8 *bssid, const u8 *pmkid,
577 				    const u8 *fils_cache_id,
578 				    const u8 *pmk, size_t pmk_len,
579 				    u32 pmk_lifetime, u8 pmk_reauth_threshold,
580 				    int akmp)
581 {
582 	struct wpa_supplicant *wpa_s = _wpa_s;
583 	struct wpa_ssid *ssid;
584 	struct wpa_pmkid_params params;
585 
586 	os_memset(&params, 0, sizeof(params));
587 	ssid = wpas_get_network_ctx(wpa_s, network_ctx);
588 	if (ssid) {
589 		wpa_msg(wpa_s, MSG_INFO, PMKSA_CACHE_ADDED MACSTR " %d",
590 			MAC2STR(bssid), ssid->id);
591 		if ((akmp == WPA_KEY_MGMT_FT_IEEE8021X ||
592 		     akmp == WPA_KEY_MGMT_FT_IEEE8021X_SHA384) &&
593 		    !ssid->ft_eap_pmksa_caching) {
594 			/* Since we will not be using PMKSA caching for FT-EAP
595 			 * within wpa_supplicant to avoid known interop issues
596 			 * with APs, do not add this PMKID to the driver either
597 			 * so that we won't be hitting those interop issues
598 			 * with driver-based RSNE generation. */
599 			wpa_printf(MSG_DEBUG,
600 				   "FT: Do not add PMKID entry to the driver since FT-EAP PMKSA caching is not enabled in configuration");
601 			return 0;
602 		}
603 	}
604 	if (ssid && fils_cache_id) {
605 		params.ssid = ssid->ssid;
606 		params.ssid_len = ssid->ssid_len;
607 		params.fils_cache_id = fils_cache_id;
608 	} else {
609 		params.bssid = bssid;
610 	}
611 
612 	params.pmkid = pmkid;
613 	params.pmk = pmk;
614 	params.pmk_len = pmk_len;
615 	params.pmk_lifetime = pmk_lifetime;
616 	params.pmk_reauth_threshold = pmk_reauth_threshold;
617 
618 	return wpa_drv_add_pmkid(wpa_s, &params);
619 }
620 
621 
wpa_supplicant_remove_pmkid(void * _wpa_s,void * network_ctx,const u8 * bssid,const u8 * pmkid,const u8 * fils_cache_id)622 static int wpa_supplicant_remove_pmkid(void *_wpa_s, void *network_ctx,
623 				       const u8 *bssid, const u8 *pmkid,
624 				       const u8 *fils_cache_id)
625 {
626 	struct wpa_supplicant *wpa_s = _wpa_s;
627 	struct wpa_ssid *ssid;
628 	struct wpa_pmkid_params params;
629 
630 	os_memset(&params, 0, sizeof(params));
631 	ssid = wpas_get_network_ctx(wpa_s, network_ctx);
632 	if (ssid)
633 		wpa_msg(wpa_s, MSG_INFO, PMKSA_CACHE_REMOVED MACSTR " %d",
634 			MAC2STR(bssid), ssid->id);
635 	if (ssid && fils_cache_id) {
636 		params.ssid = ssid->ssid;
637 		params.ssid_len = ssid->ssid_len;
638 		params.fils_cache_id = fils_cache_id;
639 	} else {
640 		params.bssid = bssid;
641 	}
642 
643 	params.pmkid = pmkid;
644 
645 	return wpa_drv_remove_pmkid(wpa_s, &params);
646 }
647 
648 
649 #ifdef CONFIG_IEEE80211R
wpa_supplicant_update_ft_ies(void * ctx,const u8 * md,const u8 * ies,size_t ies_len)650 static int wpa_supplicant_update_ft_ies(void *ctx, const u8 *md,
651 					const u8 *ies, size_t ies_len)
652 {
653 	struct wpa_supplicant *wpa_s = ctx;
654 #ifndef LTOS_CONFIG_NO_INTERNAL_SME
655 	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
656 		return sme_update_ft_ies(wpa_s, md, ies, ies_len);
657 #endif /* LTOS_CONFIG_NO_INTERNAL_SME */
658 	return wpa_drv_update_ft_ies(wpa_s, md, ies, ies_len);
659 }
660 
661 
wpa_supplicant_send_ft_action(void * ctx,u8 action,const u8 * target_ap,const u8 * ies,size_t ies_len)662 static int wpa_supplicant_send_ft_action(void *ctx, u8 action,
663 					 const u8 *target_ap,
664 					 const u8 *ies, size_t ies_len)
665 {
666 	struct wpa_supplicant *wpa_s = ctx;
667 	int ret;
668 	u8 *data, *pos;
669 	size_t data_len;
670 
671 	if (action != 1) {
672 		wpa_printf(MSG_ERROR, "Unsupported send_ft_action action %d",
673 			   action);
674 		return -1;
675 	}
676 
677 	/*
678 	 * Action frame payload:
679 	 * Category[1] = 6 (Fast BSS Transition)
680 	 * Action[1] = 1 (Fast BSS Transition Request)
681 	 * STA Address
682 	 * Target AP Address
683 	 * FT IEs
684 	 */
685 
686 	data_len = 2 + 2 * ETH_ALEN + ies_len;
687 	data = os_malloc(data_len);
688 	if (data == NULL)
689 		return -1;
690 	pos = data;
691 	*pos++ = 0x06; /* FT Action category */
692 	*pos++ = action;
693 	os_memcpy(pos, wpa_s->own_addr, ETH_ALEN);
694 	pos += ETH_ALEN;
695 	os_memcpy(pos, target_ap, ETH_ALEN);
696 	pos += ETH_ALEN;
697 	os_memcpy(pos, ies, ies_len);
698 
699 	ret = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0,
700 				  wpa_s->bssid, wpa_s->own_addr, wpa_s->bssid,
701 				  data, data_len, 0);
702 	os_free(data);
703 
704 	return ret;
705 }
706 
707 
wpa_supplicant_mark_authenticated(void * ctx,const u8 * target_ap)708 static int wpa_supplicant_mark_authenticated(void *ctx, const u8 *target_ap)
709 {
710 	struct wpa_supplicant *wpa_s = ctx;
711 	struct wpa_driver_auth_params params;
712 	struct wpa_bss *bss;
713     int ret;
714 
715 	bss = wpa_bss_get_bssid(wpa_s, target_ap);
716 	if (bss == NULL)
717 		return -1;
718 
719 	os_memset(&params, 0, sizeof(params));
720 	params.bssid = target_ap;
721 	params.freq = bss->freq;
722 	params.ssid = bss->ssid;
723 	params.ssid_len = bss->ssid_len;
724 	params.auth_alg = WPA_AUTH_ALG_FT;
725 	params.local_state_change = 1;
726 
727     ret = wpa_drv_authenticate(wpa_s, &params);
728     os_free_drv_scan_bss(bss);
729 	return ret;
730 }
731 #endif /* CONFIG_IEEE80211R */
732 
733 
734 #ifdef CONFIG_TDLS
735 
wpa_supplicant_tdls_get_capa(void * ctx,int * tdls_supported,int * tdls_ext_setup,int * tdls_chan_switch)736 static int wpa_supplicant_tdls_get_capa(void *ctx, int *tdls_supported,
737 					int *tdls_ext_setup,
738 					int *tdls_chan_switch)
739 {
740 	struct wpa_supplicant *wpa_s = ctx;
741 
742 	*tdls_supported = 0;
743 	*tdls_ext_setup = 0;
744 	*tdls_chan_switch = 0;
745 
746 	if (!wpa_s->drv_capa_known)
747 		return -1;
748 
749 	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)
750 		*tdls_supported = 1;
751 
752 	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP)
753 		*tdls_ext_setup = 1;
754 
755 	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH)
756 		*tdls_chan_switch = 1;
757 
758 	return 0;
759 }
760 
761 
wpa_supplicant_send_tdls_mgmt(void * ctx,const u8 * dst,u8 action_code,u8 dialog_token,u16 status_code,u32 peer_capab,int initiator,const u8 * buf,size_t len)762 static int wpa_supplicant_send_tdls_mgmt(void *ctx, const u8 *dst,
763 					 u8 action_code, u8 dialog_token,
764 					 u16 status_code, u32 peer_capab,
765 					 int initiator, const u8 *buf,
766 					 size_t len)
767 {
768 	struct wpa_supplicant *wpa_s = ctx;
769 	return wpa_drv_send_tdls_mgmt(wpa_s, dst, action_code, dialog_token,
770 				      status_code, peer_capab, initiator, buf,
771 				      len);
772 }
773 
774 
wpa_supplicant_tdls_oper(void * ctx,int oper,const u8 * peer)775 static int wpa_supplicant_tdls_oper(void *ctx, int oper, const u8 *peer)
776 {
777 	struct wpa_supplicant *wpa_s = ctx;
778 	return wpa_drv_tdls_oper(wpa_s, oper, peer);
779 }
780 
781 
wpa_supplicant_tdls_peer_addset(void * ctx,const u8 * peer,int add,u16 aid,u16 capability,const u8 * supp_rates,size_t supp_rates_len,const struct ieee80211_ht_capabilities * ht_capab,const struct ieee80211_vht_capabilities * vht_capab,const struct ieee80211_he_capabilities * he_capab,size_t he_capab_len,const struct ieee80211_he_6ghz_band_cap * he_6ghz_he_capab,u8 qosinfo,int wmm,const u8 * ext_capab,size_t ext_capab_len,const u8 * supp_channels,size_t supp_channels_len,const u8 * supp_oper_classes,size_t supp_oper_classes_len)782 static int wpa_supplicant_tdls_peer_addset(
783 	void *ctx, const u8 *peer, int add, u16 aid, u16 capability,
784 	const u8 *supp_rates, size_t supp_rates_len,
785 	const struct ieee80211_ht_capabilities *ht_capab,
786 	const struct ieee80211_vht_capabilities *vht_capab,
787 	const struct ieee80211_he_capabilities *he_capab,
788 	size_t he_capab_len,
789 	const struct ieee80211_he_6ghz_band_cap *he_6ghz_he_capab,
790 	u8 qosinfo, int wmm, const u8 *ext_capab, size_t ext_capab_len,
791 	const u8 *supp_channels, size_t supp_channels_len,
792 	const u8 *supp_oper_classes, size_t supp_oper_classes_len)
793 {
794 	struct wpa_supplicant *wpa_s = ctx;
795 	struct hostapd_sta_add_params params;
796 
797 	os_memset(&params, 0, sizeof(params));
798 
799 	params.addr = peer;
800 	params.aid = aid;
801 	params.capability = capability;
802 	params.flags = WPA_STA_TDLS_PEER | WPA_STA_AUTHORIZED;
803 
804 	/*
805 	 * Don't rely only on qosinfo for WMM capability. It may be 0 even when
806 	 * present. Allow the WMM IE to also indicate QoS support.
807 	 */
808 	if (wmm || qosinfo)
809 		params.flags |= WPA_STA_WMM;
810 
811 	params.ht_capabilities = ht_capab;
812 	params.vht_capabilities = vht_capab;
813 	params.he_capab = he_capab;
814 	params.he_capab_len = he_capab_len;
815 	params.he_6ghz_capab = he_6ghz_he_capab;
816 	params.qosinfo = qosinfo;
817 	params.listen_interval = 0;
818 	params.supp_rates = supp_rates;
819 	params.supp_rates_len = supp_rates_len;
820 	params.set = !add;
821 	params.ext_capab = ext_capab;
822 	params.ext_capab_len = ext_capab_len;
823 	params.supp_channels = supp_channels;
824 	params.supp_channels_len = supp_channels_len;
825 	params.supp_oper_classes = supp_oper_classes;
826 	params.supp_oper_classes_len = supp_oper_classes_len;
827 
828 	return wpa_drv_sta_add(wpa_s, &params);
829 }
830 
831 
wpa_supplicant_tdls_enable_channel_switch(void * ctx,const u8 * addr,u8 oper_class,const struct hostapd_freq_params * params)832 static int wpa_supplicant_tdls_enable_channel_switch(
833 	void *ctx, const u8 *addr, u8 oper_class,
834 	const struct hostapd_freq_params *params)
835 {
836 	struct wpa_supplicant *wpa_s = ctx;
837 
838 	return wpa_drv_tdls_enable_channel_switch(wpa_s, addr, oper_class,
839 						  params);
840 }
841 
842 
wpa_supplicant_tdls_disable_channel_switch(void * ctx,const u8 * addr)843 static int wpa_supplicant_tdls_disable_channel_switch(void *ctx, const u8 *addr)
844 {
845 	struct wpa_supplicant *wpa_s = ctx;
846 
847 	return wpa_drv_tdls_disable_channel_switch(wpa_s, addr);
848 }
849 
850 #endif /* CONFIG_TDLS */
851 
852 #endif /* CONFIG_NO_WPA */
853 
854 
wpa_supplicant_ctrl_req_from_string(const char * field)855 enum wpa_ctrl_req_type wpa_supplicant_ctrl_req_from_string(const char *field)
856 {
857 	if (os_strcmp(field, "IDENTITY") == 0)
858 		return WPA_CTRL_REQ_EAP_IDENTITY;
859 	else if (os_strcmp(field, "PASSWORD") == 0)
860 		return WPA_CTRL_REQ_EAP_PASSWORD;
861 	else if (os_strcmp(field, "NEW_PASSWORD") == 0)
862 		return WPA_CTRL_REQ_EAP_NEW_PASSWORD;
863 	else if (os_strcmp(field, "PIN") == 0)
864 		return WPA_CTRL_REQ_EAP_PIN;
865 	else if (os_strcmp(field, "OTP") == 0)
866 		return WPA_CTRL_REQ_EAP_OTP;
867 	else if (os_strcmp(field, "PASSPHRASE") == 0)
868 		return WPA_CTRL_REQ_EAP_PASSPHRASE;
869 	else if (os_strcmp(field, "SIM") == 0)
870 		return WPA_CTRL_REQ_SIM;
871 	else if (os_strcmp(field, "PSK_PASSPHRASE") == 0)
872 		return WPA_CTRL_REQ_PSK_PASSPHRASE;
873 	else if (os_strcmp(field, "EXT_CERT_CHECK") == 0)
874 		return WPA_CTRL_REQ_EXT_CERT_CHECK;
875 	return WPA_CTRL_REQ_UNKNOWN;
876 }
877 
878 
wpa_supplicant_ctrl_req_to_string(enum wpa_ctrl_req_type field,const char * default_txt,const char ** txt)879 const char * wpa_supplicant_ctrl_req_to_string(enum wpa_ctrl_req_type field,
880 					       const char *default_txt,
881 					       const char **txt)
882 {
883 	const char *ret = NULL;
884 
885 	*txt = default_txt;
886 
887 	switch (field) {
888 	case WPA_CTRL_REQ_EAP_IDENTITY:
889 		*txt = "Identity";
890 		ret = "IDENTITY";
891 		break;
892 	case WPA_CTRL_REQ_EAP_PASSWORD:
893 		*txt = "Password";
894 		ret = "PASSWORD";
895 		break;
896 	case WPA_CTRL_REQ_EAP_NEW_PASSWORD:
897 		*txt = "New Password";
898 		ret = "NEW_PASSWORD";
899 		break;
900 	case WPA_CTRL_REQ_EAP_PIN:
901 		*txt = "PIN";
902 		ret = "PIN";
903 		break;
904 	case WPA_CTRL_REQ_EAP_OTP:
905 		ret = "OTP";
906 		break;
907 	case WPA_CTRL_REQ_EAP_PASSPHRASE:
908 		*txt = "Private key passphrase";
909 		ret = "PASSPHRASE";
910 		break;
911 	case WPA_CTRL_REQ_SIM:
912 		ret = "SIM";
913 		break;
914 	case WPA_CTRL_REQ_PSK_PASSPHRASE:
915 		*txt = "PSK or passphrase";
916 		ret = "PSK_PASSPHRASE";
917 		break;
918 	case WPA_CTRL_REQ_EXT_CERT_CHECK:
919 		*txt = "External server certificate validation";
920 		ret = "EXT_CERT_CHECK";
921 		break;
922 	default:
923 		break;
924 	}
925 
926 	/* txt needs to be something */
927 	if (*txt == NULL) {
928 		wpa_printf(MSG_WARNING, "No message for request %d", field);
929 		ret = NULL;
930 	}
931 
932 	return ret;
933 }
934 
935 
wpas_send_ctrl_req(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,const char * field_name,const char * txt)936 void wpas_send_ctrl_req(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
937 			const char *field_name, const char *txt)
938 {
939 	char *buf;
940 	size_t buflen;
941 	int len;
942 
943 	buflen = 100 + os_strlen(txt) + ssid->ssid_len;
944 	buf = os_malloc(buflen);
945 	if (buf == NULL)
946 		return;
947 	len = os_snprintf(buf, buflen, "%s-%d:%s needed for SSID ",
948 			  field_name, ssid->id, txt);
949 	if (os_snprintf_error(buflen, len)) {
950 		os_free(buf);
951 		return;
952 	}
953 	if (ssid->ssid && buflen > len + ssid->ssid_len) {
954 		os_memcpy(buf + len, ssid->ssid, ssid->ssid_len);
955 		len += ssid->ssid_len;
956 		buf[len] = '\0';
957 	}
958 	buf[buflen - 1] = '\0';
959 	wpa_msg(wpa_s, MSG_INFO, WPA_CTRL_REQ "%s", buf);
960 	os_free(buf);
961 }
962 
963 
964 #ifdef IEEE8021X_EAPOL
965 #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG)
wpa_supplicant_eap_param_needed(void * ctx,enum wpa_ctrl_req_type field,const char * default_txt)966 static void wpa_supplicant_eap_param_needed(void *ctx,
967 					    enum wpa_ctrl_req_type field,
968 					    const char *default_txt)
969 {
970 	struct wpa_supplicant *wpa_s = ctx;
971 	struct wpa_ssid *ssid = wpa_s->current_ssid;
972 	const char *field_name, *txt = NULL;
973 
974 	if (ssid == NULL)
975 		return;
976 
977 	if (field == WPA_CTRL_REQ_EXT_CERT_CHECK)
978 		ssid->eap.pending_ext_cert_check = PENDING_CHECK;
979 #ifndef EXT_CODE_CROP
980 	wpas_notify_network_request(wpa_s, ssid, field, default_txt);
981 #endif /* EXT_CODE_CROP */
982 
983 	field_name = wpa_supplicant_ctrl_req_to_string(field, default_txt,
984 						       &txt);
985 	if (field_name == NULL) {
986 #ifndef CONFIG_PRINT_NOUSE
987 		wpa_printf(MSG_WARNING, "Unhandled EAP param %d needed",
988 			   field);
989 #endif /* CONFIG_PRINT_NOUSE */
990 		return;
991 	}
992 #ifndef EXT_CODE_CROP
993 	wpas_notify_eap_status(wpa_s, "eap parameter needed", field_name);
994 #endif /* EXT_CODE_CROP */
995 	wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
996 }
997 #else /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
998 #define wpa_supplicant_eap_param_needed NULL
999 #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
1000 
1001 
1002 #ifdef CONFIG_EAP_PROXY
1003 
wpa_supplicant_eap_proxy_cb(void * ctx)1004 static void wpa_supplicant_eap_proxy_cb(void *ctx)
1005 {
1006 	struct wpa_supplicant *wpa_s = ctx;
1007 	size_t len;
1008 
1009 	wpa_s->mnc_len = eapol_sm_get_eap_proxy_imsi(wpa_s->eapol, -1,
1010 						     wpa_s->imsi, &len);
1011 	if (wpa_s->mnc_len > 0) {
1012 		wpa_s->imsi[len] = '\0';
1013 		wpa_printf(MSG_DEBUG, "eap_proxy: IMSI %s (MNC length %d)",
1014 			   wpa_s->imsi, wpa_s->mnc_len);
1015 	} else {
1016 		wpa_printf(MSG_DEBUG, "eap_proxy: IMSI not available");
1017 	}
1018 }
1019 
1020 
wpa_sm_sim_state_error_handler(struct wpa_supplicant * wpa_s)1021 static void wpa_sm_sim_state_error_handler(struct wpa_supplicant *wpa_s)
1022 {
1023 	int i;
1024 	struct wpa_ssid *ssid;
1025 	const struct eap_method_type *eap_methods;
1026 
1027 	if (!wpa_s->conf)
1028 		return;
1029 
1030 	for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)	{
1031 		eap_methods = ssid->eap.eap_methods;
1032 		if (!eap_methods)
1033 			continue;
1034 
1035 		for (i = 0; eap_methods[i].method != EAP_TYPE_NONE; i++) {
1036 			if (eap_methods[i].vendor == EAP_VENDOR_IETF &&
1037 			    (eap_methods[i].method == EAP_TYPE_SIM ||
1038 			     eap_methods[i].method == EAP_TYPE_AKA ||
1039 			     eap_methods[i].method == EAP_TYPE_AKA_PRIME)) {
1040 				wpa_sm_pmksa_cache_flush(wpa_s->wpa, ssid);
1041 				break;
1042 			}
1043 		}
1044 	}
1045 }
1046 
1047 
1048 static void
wpa_supplicant_eap_proxy_notify_sim_status(void * ctx,enum eap_proxy_sim_state sim_state)1049 wpa_supplicant_eap_proxy_notify_sim_status(void *ctx,
1050 					   enum eap_proxy_sim_state sim_state)
1051 {
1052 	struct wpa_supplicant *wpa_s = ctx;
1053 
1054 	wpa_printf(MSG_DEBUG, "eap_proxy: SIM card status %u", sim_state);
1055 	switch (sim_state) {
1056 	case SIM_STATE_ERROR:
1057 		wpa_sm_sim_state_error_handler(wpa_s);
1058 		break;
1059 	default:
1060 		wpa_printf(MSG_DEBUG, "eap_proxy: SIM card status unknown");
1061 		break;
1062 	}
1063 }
1064 
1065 #endif /* CONFIG_EAP_PROXY */
1066 
1067 #ifndef LOS_CONFIG_EXT_DRIVER_NOT_SUPPORT
wpa_supplicant_port_cb(void * ctx,int authorized)1068 static void wpa_supplicant_port_cb(void *ctx, int authorized)
1069 {
1070 	struct wpa_supplicant *wpa_s = ctx;
1071 #ifdef CONFIG_AP
1072 	if (wpa_s->ap_iface) {
1073 		wpa_printf(MSG_DEBUG, "AP mode active - skip EAPOL Supplicant "
1074 			   "port status: %s",
1075 			   authorized ? "Authorized" : "Unauthorized");
1076 		return;
1077 	}
1078 #endif /* CONFIG_AP */
1079 	wpa_printf(MSG_DEBUG, "EAPOL: Supplicant port status: %s",
1080 		   authorized ? "Authorized" : "Unauthorized");
1081 	wpa_drv_set_supp_port(wpa_s, authorized);
1082 }
1083 #endif /* LOS_CONFIG_EXT_DRIVER_NOT_SUPPORT */
1084 
1085 #ifndef EXT_CODE_CROP
wpa_supplicant_cert_cb(void * ctx,struct tls_cert_data * cert,const char * cert_hash)1086 static void wpa_supplicant_cert_cb(void *ctx, struct tls_cert_data *cert,
1087 				   const char *cert_hash)
1088 {
1089 	struct wpa_supplicant *wpa_s = ctx;
1090 
1091 	wpas_notify_certification(wpa_s, cert, cert_hash);
1092 }
1093 
1094 
wpa_supplicant_status_cb(void * ctx,const char * status,const char * parameter)1095 static void wpa_supplicant_status_cb(void *ctx, const char *status,
1096 				     const char *parameter)
1097 {
1098 	struct wpa_supplicant *wpa_s = ctx;
1099 
1100 	wpas_notify_eap_status(wpa_s, status, parameter);
1101 }
1102 
1103 
wpa_supplicant_eap_error_cb(void * ctx,int error_code)1104 static void wpa_supplicant_eap_error_cb(void *ctx, int error_code)
1105 {
1106 	struct wpa_supplicant *wpa_s = ctx;
1107 
1108 	wpas_notify_eap_error(wpa_s, error_code);
1109 }
1110 
1111 
wpa_supplicant_eap_auth_start_cb(void * ctx)1112 static int wpa_supplicant_eap_auth_start_cb(void *ctx)
1113 {
1114 	struct wpa_supplicant *wpa_s = ctx;
1115 
1116 	if (!wpa_s->new_connection && wpa_s->deny_ptk0_rekey &&
1117 	    !wpa_sm_ext_key_id_active(wpa_s->wpa)) {
1118 		wpa_msg(wpa_s, MSG_INFO,
1119 			"WPA: PTK0 rekey not allowed, reconnecting");
1120 		wpa_supplicant_reconnect(wpa_s);
1121 		return -1;
1122 	}
1123 	return 0;
1124 }
1125 
1126 
wpa_supplicant_set_anon_id(void * ctx,const u8 * id,size_t len)1127 static void wpa_supplicant_set_anon_id(void *ctx, const u8 *id, size_t len)
1128 {
1129 	struct wpa_supplicant *wpa_s = ctx;
1130 	char *str;
1131 	int res;
1132 
1133 	wpa_hexdump_ascii(MSG_DEBUG, "EAP method updated anonymous_identity",
1134 			  id, len);
1135 
1136 	if (wpa_s->current_ssid == NULL)
1137 		return;
1138 
1139 	if (id == NULL) {
1140 		if (wpa_config_set(wpa_s->current_ssid, "anonymous_identity",
1141 				   "NULL", 0) < 0)
1142 			return;
1143 	} else {
1144 		str = os_malloc(len * 2 + 1);
1145 		if (str == NULL)
1146 			return;
1147 		wpa_snprintf_hex(str, len * 2 + 1, id, len);
1148 		res = wpa_config_set(wpa_s->current_ssid, "anonymous_identity",
1149 				     str, 0);
1150 		os_free(str);
1151 		if (res < 0)
1152 			return;
1153 	}
1154 
1155 	if (wpa_s->conf->update_config) {
1156 		res = wpa_config_write(wpa_s->confname, wpa_s->conf);
1157 		if (res) {
1158 			wpa_printf(MSG_DEBUG, "Failed to update config after "
1159 				   "anonymous_id update");
1160 		}
1161 	}
1162 }
1163 #endif /* EXT_CODE_CROP */
1164 #endif /* IEEE8021X_EAPOL */
1165 
wpa_supplicant_init_eapol(struct wpa_supplicant * wpa_s)1166 int wpa_supplicant_init_eapol(struct wpa_supplicant *wpa_s)
1167 {
1168 #ifdef IEEE8021X_EAPOL
1169 	struct eapol_ctx *ctx;
1170 	ctx = os_zalloc(sizeof(*ctx));
1171 	if (ctx == NULL) {
1172 		wpa_printf(MSG_ERROR, "Failed to allocate EAPOL context.");
1173 		return -1;
1174 	}
1175 
1176 	ctx->ctx = wpa_s;
1177 	ctx->msg_ctx = wpa_s;
1178 	ctx->eapol_send_ctx = wpa_s;
1179 	ctx->preauth = 0;
1180 	ctx->eapol_done_cb = wpa_supplicant_notify_eapol_done;
1181 	ctx->eapol_send = wpa_supplicant_eapol_send;
1182 #ifdef CONFIG_WEP
1183 	ctx->set_wep_key = wpa_eapol_set_wep_key;
1184 #endif /* CONFIG_WEP */
1185 #ifndef CONFIG_NO_CONFIG_BLOBS
1186 	ctx->set_config_blob = wpa_supplicant_set_config_blob;
1187 	ctx->get_config_blob = wpa_supplicant_get_config_blob;
1188 #endif /* CONFIG_NO_CONFIG_BLOBS */
1189 	ctx->aborted_cached = wpa_supplicant_aborted_cached;
1190 	ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path;
1191 	ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path;
1192 	ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path;
1193 	ctx->openssl_ciphers = wpa_s->conf->openssl_ciphers;
1194 	ctx->wps = wpa_s->wps;
1195 	ctx->eap_param_needed = wpa_supplicant_eap_param_needed;
1196 #ifdef CONFIG_EAP_PROXY
1197 	ctx->eap_proxy_cb = wpa_supplicant_eap_proxy_cb;
1198 	ctx->eap_proxy_notify_sim_status =
1199 		wpa_supplicant_eap_proxy_notify_sim_status;
1200 #endif /* CONFIG_EAP_PROXY */
1201 #ifndef LOS_CONFIG_EXT_DRIVER_NOT_SUPPORT
1202 	ctx->port_cb = wpa_supplicant_port_cb;
1203 #endif /* LOS_CONFIG_EXT_DRIVER_NOT_SUPPORT */
1204 	ctx->cb = wpa_supplicant_eapol_cb;
1205 #ifndef EXT_CODE_CROP
1206 	ctx->cert_cb = wpa_supplicant_cert_cb;
1207 	ctx->cert_in_cb = wpa_s->conf->cert_in_cb;
1208 	ctx->status_cb = wpa_supplicant_status_cb;
1209 	ctx->eap_error_cb = wpa_supplicant_eap_error_cb;
1210 	ctx->confirm_auth_cb = wpa_supplicant_eap_auth_start_cb;
1211 	ctx->set_anon_id = wpa_supplicant_set_anon_id;
1212 #endif /* EXT_CODE_CROP */
1213 	ctx->cb_ctx = wpa_s;
1214 	wpa_s->eapol = eapol_sm_init(ctx);
1215 	if (wpa_s->eapol == NULL) {
1216 		os_free(ctx);
1217 #ifndef CONFIG_PRINT_NOUSE
1218 		wpa_printf(MSG_ERROR, "Failed to initialize EAPOL state "
1219 			   "machines.");
1220 #endif /* CONFIG_PRINT_NOUSE */
1221 		return -1;
1222 	}
1223 #endif /* IEEE8021X_EAPOL */
1224 
1225 	return 0;
1226 }
1227 
1228 
1229 #ifndef CONFIG_NO_WPA
1230 
wpa_supplicant_set_rekey_offload(void * ctx,const u8 * kek,size_t kek_len,const u8 * kck,size_t kck_len,const u8 * replay_ctr)1231 static void wpa_supplicant_set_rekey_offload(void *ctx,
1232 					     const u8 *kek, size_t kek_len,
1233 					     const u8 *kck, size_t kck_len,
1234 					     const u8 *replay_ctr)
1235 {
1236 	struct wpa_supplicant *wpa_s = ctx;
1237 
1238 	wpa_drv_set_rekey_info(wpa_s, kek, kek_len, kck, kck_len, replay_ctr);
1239 }
1240 
1241 
wpa_supplicant_key_mgmt_set_pmk(void * ctx,const u8 * pmk,size_t pmk_len)1242 static int wpa_supplicant_key_mgmt_set_pmk(void *ctx, const u8 *pmk,
1243 					   size_t pmk_len)
1244 {
1245 	struct wpa_supplicant *wpa_s = ctx;
1246 
1247 	if (wpa_s->conf->key_mgmt_offload &&
1248 	    (wpa_s->drv_flags & WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD))
1249 		return wpa_drv_set_key(wpa_s, 0, NULL, 0, 0,
1250 				       NULL, 0, pmk, pmk_len, KEY_FLAG_PMK);
1251 	else
1252 		return 0;
1253 }
1254 
1255 
wpa_supplicant_fils_hlp_rx(void * ctx,const u8 * dst,const u8 * src,const u8 * pkt,size_t pkt_len)1256 static void wpa_supplicant_fils_hlp_rx(void *ctx, const u8 *dst, const u8 *src,
1257 				       const u8 *pkt, size_t pkt_len)
1258 {
1259 	struct wpa_supplicant *wpa_s = ctx;
1260 	char *hex;
1261 	size_t hexlen;
1262 
1263 	hexlen = pkt_len * 2 + 1;
1264 	hex = os_malloc(hexlen);
1265 	if (!hex)
1266 		return;
1267 	wpa_snprintf_hex(hex, hexlen, pkt, pkt_len);
1268 	wpa_msg(wpa_s, MSG_INFO, FILS_HLP_RX "dst=" MACSTR " src=" MACSTR
1269 		" frame=%s", MAC2STR(dst), MAC2STR(src), hex);
1270 	os_free(hex);
1271 }
1272 
1273 
wpa_supplicant_channel_info(void * _wpa_s,struct wpa_channel_info * ci)1274 static int wpa_supplicant_channel_info(void *_wpa_s,
1275 				       struct wpa_channel_info *ci)
1276 {
1277 	struct wpa_supplicant *wpa_s = _wpa_s;
1278 
1279 	return wpa_drv_channel_info(wpa_s, ci);
1280 }
1281 
1282 
disable_wpa_wpa2(struct wpa_ssid * ssid)1283 static void disable_wpa_wpa2(struct wpa_ssid *ssid)
1284 {
1285 	ssid->proto &= ~WPA_PROTO_WPA;
1286 	ssid->proto |= WPA_PROTO_RSN;
1287 	ssid->key_mgmt &= ~(WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_FT_PSK |
1288 			    WPA_KEY_MGMT_PSK_SHA256);
1289 	ssid->group_cipher &= ~WPA_CIPHER_TKIP;
1290 	if (!(ssid->group_cipher & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1291 				    WPA_CIPHER_GCMP_256 | WPA_CIPHER_CCMP_256)))
1292 		ssid->group_cipher |= WPA_CIPHER_CCMP;
1293 	ssid->ieee80211w = MGMT_FRAME_PROTECTION_REQUIRED;
1294 }
1295 
1296 
wpa_supplicant_transition_disable(void * _wpa_s,u8 bitmap)1297 static void wpa_supplicant_transition_disable(void *_wpa_s, u8 bitmap)
1298 {
1299 	struct wpa_supplicant *wpa_s = _wpa_s;
1300 	struct wpa_ssid *ssid;
1301 	int changed = 0;
1302 
1303 	wpa_msg(wpa_s, MSG_INFO, TRANSITION_DISABLE "%02x", bitmap);
1304 
1305 	ssid = wpa_s->current_ssid;
1306 	if (!ssid)
1307 		return;
1308 
1309 #ifdef CONFIG_SAE
1310 	if ((bitmap & TRANSITION_DISABLE_WPA3_PERSONAL) &&
1311 	    wpa_key_mgmt_sae(wpa_s->key_mgmt) &&
1312 	    (ssid->key_mgmt & (WPA_KEY_MGMT_SAE | WPA_KEY_MGMT_FT_SAE)) &&
1313 	    (ssid->ieee80211w != MGMT_FRAME_PROTECTION_REQUIRED ||
1314 	     (ssid->group_cipher & WPA_CIPHER_TKIP))) {
1315 		wpa_printf(MSG_DEBUG,
1316 			   "WPA3-Personal transition mode disabled based on AP notification");
1317 		disable_wpa_wpa2(ssid);
1318 		changed = 1;
1319 	}
1320 
1321 	if ((bitmap & TRANSITION_DISABLE_SAE_PK) &&
1322 	    wpa_key_mgmt_sae(wpa_s->key_mgmt) &&
1323 #ifdef CONFIG_SME
1324 	    wpa_s->sme.sae.state == SAE_ACCEPTED &&
1325 	    wpa_s->sme.sae.pk &&
1326 #endif /* CONFIG_SME */
1327 	    (ssid->key_mgmt & (WPA_KEY_MGMT_SAE | WPA_KEY_MGMT_FT_SAE)) &&
1328 	    (ssid->sae_pk != SAE_PK_MODE_ONLY ||
1329 	     ssid->ieee80211w != MGMT_FRAME_PROTECTION_REQUIRED ||
1330 	     (ssid->group_cipher & WPA_CIPHER_TKIP))) {
1331 		wpa_printf(MSG_DEBUG,
1332 			   "SAE-PK: SAE authentication without PK disabled based on AP notification");
1333 		disable_wpa_wpa2(ssid);
1334 		ssid->sae_pk = SAE_PK_MODE_ONLY;
1335 		changed = 1;
1336 	}
1337 #endif /* CONFIG_SAE */
1338 
1339 	if ((bitmap & TRANSITION_DISABLE_WPA3_ENTERPRISE) &&
1340 	    wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) &&
1341 	    (ssid->key_mgmt & (WPA_KEY_MGMT_IEEE8021X |
1342 			       WPA_KEY_MGMT_FT_IEEE8021X |
1343 			       WPA_KEY_MGMT_IEEE8021X_SHA256)) &&
1344 	    (ssid->ieee80211w != MGMT_FRAME_PROTECTION_REQUIRED ||
1345 	     (ssid->group_cipher & WPA_CIPHER_TKIP))) {
1346 		disable_wpa_wpa2(ssid);
1347 		changed = 1;
1348 	}
1349 
1350 	if ((bitmap & TRANSITION_DISABLE_ENHANCED_OPEN) &&
1351 	    wpa_s->key_mgmt == WPA_KEY_MGMT_OWE &&
1352 	    (ssid->key_mgmt & WPA_KEY_MGMT_OWE) &&
1353 	    !ssid->owe_only) {
1354 		ssid->owe_only = 1;
1355 		changed = 1;
1356 	}
1357 
1358 	if (!changed)
1359 		return;
1360 
1361 #ifndef CONFIG_NO_CONFIG_WRITE
1362 	if (wpa_s->conf->update_config &&
1363 	    wpa_config_write(wpa_s->confname, wpa_s->conf))
1364 		wpa_printf(MSG_DEBUG, "Failed to update configuration");
1365 #endif /* CONFIG_NO_CONFIG_WRITE */
1366 }
1367 
1368 
wpa_supplicant_store_ptk(void * ctx,u8 * addr,int cipher,u32 life_time,const struct wpa_ptk * ptk)1369 static void wpa_supplicant_store_ptk(void *ctx, u8 *addr, int cipher,
1370 				     u32 life_time, const struct wpa_ptk *ptk)
1371 {
1372 	struct wpa_supplicant *wpa_s = ctx;
1373 
1374 	ptksa_cache_add(wpa_s->ptksa, addr, cipher, life_time, ptk);
1375 }
1376 
1377 #endif /* CONFIG_NO_WPA */
1378 
1379 
wpa_supplicant_init_wpa(struct wpa_supplicant * wpa_s)1380 int wpa_supplicant_init_wpa(struct wpa_supplicant *wpa_s)
1381 {
1382 #ifndef CONFIG_NO_WPA
1383 	struct wpa_sm_ctx *ctx;
1384 
1385 	wpa_s->ptksa = ptksa_cache_init();
1386 	if (!wpa_s->ptksa) {
1387 		wpa_printf(MSG_ERROR, "Failed to allocate PTKSA");
1388 		return -1;
1389 	}
1390 
1391 	ctx = os_zalloc(sizeof(*ctx));
1392 	if (ctx == NULL) {
1393 		wpa_printf(MSG_ERROR, "Failed to allocate WPA context.");
1394 
1395 		ptksa_cache_deinit(wpa_s->ptksa);
1396 		wpa_s->ptksa = NULL;
1397 
1398 		return -1;
1399 	}
1400 
1401 	ctx->ctx = wpa_s;
1402 	ctx->msg_ctx = wpa_s;
1403 	ctx->set_state = _wpa_supplicant_set_state;
1404 	ctx->get_state = _wpa_supplicant_get_state;
1405 	ctx->deauthenticate = _wpa_supplicant_deauthenticate;
1406 	ctx->reconnect = _wpa_supplicant_reconnect;
1407 	ctx->set_key = wpa_supplicant_set_key;
1408 	ctx->get_network_ctx = wpa_supplicant_get_network_ctx;
1409 	ctx->get_bssid = wpa_supplicant_get_bssid;
1410 	ctx->ether_send = _wpa_ether_send;
1411 	ctx->get_beacon_ie = wpa_supplicant_get_beacon_ie;
1412 	ctx->alloc_eapol = _wpa_alloc_eapol;
1413 	ctx->cancel_auth_timeout = _wpa_supplicant_cancel_auth_timeout;
1414 	ctx->add_pmkid = wpa_supplicant_add_pmkid;
1415 	ctx->remove_pmkid = wpa_supplicant_remove_pmkid;
1416 #ifndef CONFIG_NO_CONFIG_BLOBS
1417 	ctx->set_config_blob = wpa_supplicant_set_config_blob;
1418 	ctx->get_config_blob = wpa_supplicant_get_config_blob;
1419 #endif /* CONFIG_NO_CONFIG_BLOBS */
1420 #ifndef LOS_CONFIG_EXT_DRIVER_NOT_SUPPORT
1421 	ctx->mlme_setprotection = wpa_supplicant_mlme_setprotection;
1422 #endif /* LOS_CONFIG_EXT_DRIVER_NOT_SUPPORT */
1423 #ifdef CONFIG_IEEE80211R
1424 	ctx->update_ft_ies = wpa_supplicant_update_ft_ies;
1425 	ctx->send_ft_action = wpa_supplicant_send_ft_action;
1426 	ctx->mark_authenticated = wpa_supplicant_mark_authenticated;
1427 #endif /* CONFIG_IEEE80211R */
1428 #ifdef CONFIG_TDLS
1429 	ctx->tdls_get_capa = wpa_supplicant_tdls_get_capa;
1430 	ctx->send_tdls_mgmt = wpa_supplicant_send_tdls_mgmt;
1431 	ctx->tdls_oper = wpa_supplicant_tdls_oper;
1432 	ctx->tdls_peer_addset = wpa_supplicant_tdls_peer_addset;
1433 	ctx->tdls_enable_channel_switch =
1434 		wpa_supplicant_tdls_enable_channel_switch;
1435 	ctx->tdls_disable_channel_switch =
1436 		wpa_supplicant_tdls_disable_channel_switch;
1437 #endif /* CONFIG_TDLS */
1438 	ctx->set_rekey_offload = wpa_supplicant_set_rekey_offload;
1439 	ctx->key_mgmt_set_pmk = wpa_supplicant_key_mgmt_set_pmk;
1440 #ifndef EXT_CODE_CROP
1441 	ctx->fils_hlp_rx = wpa_supplicant_fils_hlp_rx;
1442 	ctx->channel_info = wpa_supplicant_channel_info;
1443 #endif /* EXT_CODE_CROP */
1444 	ctx->transition_disable = wpa_supplicant_transition_disable;
1445 	ctx->store_ptk = wpa_supplicant_store_ptk;
1446 
1447 	wpa_s->wpa = wpa_sm_init(ctx);
1448 	if (wpa_s->wpa == NULL) {
1449 		wpa_printf(MSG_ERROR,
1450 			   "Failed to initialize WPA state machine");
1451 		os_free(ctx);
1452 		ptksa_cache_deinit(wpa_s->ptksa);
1453 		wpa_s->ptksa = NULL;
1454 		return -1;
1455 	}
1456 #endif /* CONFIG_NO_WPA */
1457 
1458 	return 0;
1459 }
1460 
1461 
wpa_supplicant_rsn_supp_set_config(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid)1462 void wpa_supplicant_rsn_supp_set_config(struct wpa_supplicant *wpa_s,
1463 					struct wpa_ssid *ssid)
1464 {
1465 	struct rsn_supp_config conf;
1466 	if (ssid) {
1467 		os_memset(&conf, 0, sizeof(conf));
1468 		conf.network_ctx = ssid;
1469 		conf.allowed_pairwise_cipher = ssid->pairwise_cipher;
1470 #ifdef IEEE8021X_EAPOL
1471 		conf.proactive_key_caching = ssid->proactive_key_caching < 0 ?
1472 			wpa_s->conf->okc : ssid->proactive_key_caching;
1473 		conf.eap_workaround = ssid->eap_workaround;
1474 		conf.eap_conf_ctx = &ssid->eap;
1475 #endif /* IEEE8021X_EAPOL */
1476 		conf.ssid = ssid->ssid;
1477 		conf.ssid_len = ssid->ssid_len;
1478 		conf.wpa_ptk_rekey = ssid->wpa_ptk_rekey;
1479 		conf.wpa_deny_ptk0_rekey = ssid->wpa_deny_ptk0_rekey;
1480 		conf.owe_ptk_workaround = ssid->owe_ptk_workaround;
1481 #ifdef CONFIG_P2P
1482 		if (ssid->p2p_group && wpa_s->current_bss &&
1483 		    !wpa_s->p2p_disable_ip_addr_req) {
1484 			struct wpabuf *p2p;
1485 			p2p = wpa_bss_get_vendor_ie_multi(wpa_s->current_bss,
1486 							  P2P_IE_VENDOR_TYPE);
1487 			if (p2p) {
1488 				u8 group_capab;
1489 				group_capab = p2p_get_group_capab(p2p);
1490 				if (group_capab &
1491 				    P2P_GROUP_CAPAB_IP_ADDR_ALLOCATION)
1492 					conf.p2p = 1;
1493 				wpabuf_free(p2p);
1494 			}
1495 		}
1496 #endif /* CONFIG_P2P */
1497 		conf.wpa_rsc_relaxation = wpa_s->conf->wpa_rsc_relaxation;
1498 #ifdef CONFIG_FILS
1499 		if (wpa_key_mgmt_fils(wpa_s->key_mgmt))
1500 			conf.fils_cache_id =
1501 				wpa_bss_get_fils_cache_id(wpa_s->current_bss);
1502 #endif /* CONFIG_FILS */
1503 		if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_BEACON_PROTECTION) ||
1504 		    (wpa_s->drv_flags2 &
1505 		     WPA_DRIVER_FLAGS2_BEACON_PROTECTION_CLIENT))
1506 			conf.beacon_prot = ssid->beacon_prot;
1507 
1508 #ifdef CONFIG_PASN
1509 #ifdef CONFIG_TESTING_OPTIONS
1510 		conf.force_kdk_derivation = wpa_s->conf->force_kdk_derivation;
1511 #endif /* CONFIG_TESTING_OPTIONS */
1512 #endif /* CONFIG_PASN */
1513 	}
1514 	wpa_sm_set_config(wpa_s->wpa, ssid ? &conf : NULL);
1515 }
1516