Line data Source code
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 "rsn_supp/wpa.h"
14 : #include "eloop.h"
15 : #include "config.h"
16 : #include "l2_packet/l2_packet.h"
17 : #include "common/wpa_common.h"
18 : #include "wpa_supplicant_i.h"
19 : #include "driver_i.h"
20 : #include "rsn_supp/pmksa_cache.h"
21 : #include "sme.h"
22 : #include "common/ieee802_11_defs.h"
23 : #include "common/wpa_ctrl.h"
24 : #include "wpas_glue.h"
25 : #include "wps_supplicant.h"
26 : #include "bss.h"
27 : #include "scan.h"
28 : #include "notify.h"
29 : #include "wpas_kay.h"
30 :
31 :
32 : #ifndef CONFIG_NO_CONFIG_BLOBS
33 : #if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA)
34 9 : static void wpa_supplicant_set_config_blob(void *ctx,
35 : struct wpa_config_blob *blob)
36 : {
37 9 : struct wpa_supplicant *wpa_s = ctx;
38 9 : wpa_config_set_blob(wpa_s->conf, blob);
39 9 : if (wpa_s->conf->update_config) {
40 0 : int ret = wpa_config_write(wpa_s->confname, wpa_s->conf);
41 0 : if (ret) {
42 0 : wpa_printf(MSG_DEBUG, "Failed to update config after "
43 : "blob set");
44 : }
45 : }
46 9 : }
47 :
48 :
49 : static const struct wpa_config_blob *
50 23 : wpa_supplicant_get_config_blob(void *ctx, const char *name)
51 : {
52 23 : struct wpa_supplicant *wpa_s = ctx;
53 23 : return wpa_config_get_blob(wpa_s->conf, name);
54 : }
55 : #endif /* defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA) */
56 : #endif /* CONFIG_NO_CONFIG_BLOBS */
57 :
58 :
59 : #if defined(IEEE8021X_EAPOL) || !defined(CONFIG_NO_WPA)
60 8010 : static u8 * wpa_alloc_eapol(const struct wpa_supplicant *wpa_s, u8 type,
61 : const void *data, u16 data_len,
62 : size_t *msg_len, void **data_pos)
63 : {
64 : struct ieee802_1x_hdr *hdr;
65 :
66 8010 : *msg_len = sizeof(*hdr) + data_len;
67 8010 : hdr = os_malloc(*msg_len);
68 8010 : if (hdr == NULL)
69 0 : return NULL;
70 :
71 8010 : hdr->version = wpa_s->conf->eapol_version;
72 8010 : hdr->type = type;
73 8010 : hdr->length = host_to_be16(data_len);
74 :
75 8010 : if (data)
76 5377 : os_memcpy(hdr + 1, data, data_len);
77 : else
78 2633 : os_memset(hdr + 1, 0, data_len);
79 :
80 8010 : if (data_pos)
81 2632 : *data_pos = hdr + 1;
82 :
83 8010 : return (u8 *) hdr;
84 : }
85 :
86 :
87 : /**
88 : * wpa_ether_send - Send Ethernet frame
89 : * @wpa_s: Pointer to wpa_supplicant data
90 : * @dest: Destination MAC address
91 : * @proto: Ethertype in host byte order
92 : * @buf: Frame payload starting from IEEE 802.1X header
93 : * @len: Frame payload length
94 : * Returns: >=0 on success, <0 on failure
95 : */
96 8000 : static int wpa_ether_send(struct wpa_supplicant *wpa_s, const u8 *dest,
97 : u16 proto, const u8 *buf, size_t len)
98 : {
99 : #ifdef CONFIG_TESTING_OPTIONS
100 8000 : if (wpa_s->ext_eapol_frame_io && proto == ETH_P_EAPOL) {
101 16 : size_t hex_len = 2 * len + 1;
102 16 : char *hex = os_malloc(hex_len);
103 :
104 16 : if (hex == NULL)
105 0 : return -1;
106 16 : wpa_snprintf_hex(hex, hex_len, buf, len);
107 96 : wpa_msg(wpa_s, MSG_INFO, "EAPOL-TX " MACSTR " %s",
108 96 : MAC2STR(dest), hex);
109 16 : os_free(hex);
110 16 : return 0;
111 : }
112 : #endif /* CONFIG_TESTING_OPTIONS */
113 :
114 7984 : if (wpa_s->l2) {
115 7984 : return l2_packet_send(wpa_s->l2, dest, proto, buf, len);
116 : }
117 :
118 0 : return -1;
119 : }
120 : #endif /* IEEE8021X_EAPOL || !CONFIG_NO_WPA */
121 :
122 :
123 : #ifdef IEEE8021X_EAPOL
124 :
125 : /**
126 : * wpa_supplicant_eapol_send - Send IEEE 802.1X EAPOL packet to Authenticator
127 : * @ctx: Pointer to wpa_supplicant data (wpa_s)
128 : * @type: IEEE 802.1X packet type (IEEE802_1X_TYPE_*)
129 : * @buf: EAPOL payload (after IEEE 802.1X header)
130 : * @len: EAPOL payload length
131 : * Returns: >=0 on success, <0 on failure
132 : *
133 : * This function adds Ethernet and IEEE 802.1X header and sends the EAPOL frame
134 : * to the current Authenticator.
135 : */
136 5367 : static int wpa_supplicant_eapol_send(void *ctx, int type, const u8 *buf,
137 : size_t len)
138 : {
139 5367 : struct wpa_supplicant *wpa_s = ctx;
140 : u8 *msg, *dst, bssid[ETH_ALEN];
141 : size_t msglen;
142 : int res;
143 :
144 : /* TODO: could add l2_packet_sendmsg that allows fragments to avoid
145 : * extra copy here */
146 :
147 10734 : if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
148 5367 : wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) {
149 : /* Current SSID is not using IEEE 802.1X/EAP, so drop possible
150 : * EAPOL frames (mainly, EAPOL-Start) from EAPOL state
151 : * machines. */
152 0 : wpa_printf(MSG_DEBUG, "WPA: drop TX EAPOL in non-IEEE 802.1X "
153 : "mode (type=%d len=%lu)", type,
154 : (unsigned long) len);
155 0 : return -1;
156 : }
157 :
158 5367 : if (pmksa_cache_get_current(wpa_s->wpa) &&
159 : type == IEEE802_1X_TYPE_EAPOL_START) {
160 : /*
161 : * We were trying to use PMKSA caching and sending EAPOL-Start
162 : * would abort that and trigger full EAPOL authentication.
163 : * However, we've already waited for the AP/Authenticator to
164 : * start 4-way handshake or EAP authentication, and apparently
165 : * it has not done so since the startWhen timer has reached zero
166 : * to get the state machine sending EAPOL-Start. This is not
167 : * really supposed to happen, but an interoperability issue with
168 : * a deployed AP has been identified where the connection fails
169 : * due to that AP failing to operate correctly if PMKID is
170 : * included in the Association Request frame. To work around
171 : * this, assume PMKSA caching failed and try to initiate full
172 : * EAP authentication.
173 : */
174 0 : if (!wpa_s->current_ssid ||
175 0 : wpa_s->current_ssid->eap_workaround) {
176 0 : wpa_printf(MSG_DEBUG,
177 : "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");
178 : } else {
179 0 : wpa_printf(MSG_DEBUG,
180 : "RSN: PMKSA caching - do not send EAPOL-Start");
181 0 : return -1;
182 : }
183 : }
184 :
185 5367 : if (is_zero_ether_addr(wpa_s->bssid)) {
186 0 : wpa_printf(MSG_DEBUG, "BSSID not set when trying to send an "
187 : "EAPOL frame");
188 0 : if (wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
189 0 : !is_zero_ether_addr(bssid)) {
190 0 : dst = bssid;
191 0 : wpa_printf(MSG_DEBUG, "Using current BSSID " MACSTR
192 : " from the driver as the EAPOL destination",
193 0 : MAC2STR(dst));
194 : } else {
195 0 : dst = wpa_s->last_eapol_src;
196 0 : wpa_printf(MSG_DEBUG, "Using the source address of the"
197 : " last received EAPOL frame " MACSTR " as "
198 : "the EAPOL destination",
199 0 : MAC2STR(dst));
200 : }
201 : } else {
202 : /* BSSID was already set (from (Re)Assoc event, so use it as
203 : * the EAPOL destination. */
204 5367 : dst = wpa_s->bssid;
205 : }
206 :
207 5367 : msg = wpa_alloc_eapol(wpa_s, type, buf, len, &msglen, NULL);
208 5367 : if (msg == NULL)
209 0 : return -1;
210 :
211 5367 : wpa_printf(MSG_DEBUG, "TX EAPOL: dst=" MACSTR, MAC2STR(dst));
212 5367 : wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", msg, msglen);
213 5367 : res = wpa_ether_send(wpa_s, dst, ETH_P_EAPOL, msg, msglen);
214 5367 : os_free(msg);
215 5367 : return res;
216 : }
217 :
218 :
219 : /**
220 : * wpa_eapol_set_wep_key - set WEP key for the driver
221 : * @ctx: Pointer to wpa_supplicant data (wpa_s)
222 : * @unicast: 1 = individual unicast key, 0 = broadcast key
223 : * @keyidx: WEP key index (0..3)
224 : * @key: Pointer to key data
225 : * @keylen: Key length in bytes
226 : * Returns: 0 on success or < 0 on error.
227 : */
228 4 : static int wpa_eapol_set_wep_key(void *ctx, int unicast, int keyidx,
229 : const u8 *key, size_t keylen)
230 : {
231 4 : struct wpa_supplicant *wpa_s = ctx;
232 4 : if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
233 4 : int cipher = (keylen == 5) ? WPA_CIPHER_WEP40 :
234 : WPA_CIPHER_WEP104;
235 4 : if (unicast)
236 2 : wpa_s->pairwise_cipher = cipher;
237 : else
238 2 : wpa_s->group_cipher = cipher;
239 : }
240 4 : return wpa_drv_set_key(wpa_s, WPA_ALG_WEP,
241 : unicast ? wpa_s->bssid : NULL,
242 : keyidx, unicast, NULL, 0, key, keylen);
243 : }
244 :
245 :
246 52 : static void wpa_supplicant_aborted_cached(void *ctx)
247 : {
248 52 : struct wpa_supplicant *wpa_s = ctx;
249 52 : wpa_sm_aborted_cached(wpa_s->wpa);
250 52 : }
251 :
252 :
253 2003 : static const char * result_str(enum eapol_supp_result result)
254 : {
255 2003 : switch (result) {
256 : case EAPOL_SUPP_RESULT_FAILURE:
257 496 : return "FAILURE";
258 : case EAPOL_SUPP_RESULT_SUCCESS:
259 1503 : return "SUCCESS";
260 : case EAPOL_SUPP_RESULT_EXPECTED_FAILURE:
261 4 : return "EXPECTED_FAILURE";
262 : }
263 0 : return "?";
264 : }
265 :
266 :
267 2003 : static void wpa_supplicant_eapol_cb(struct eapol_sm *eapol,
268 : enum eapol_supp_result result,
269 : void *ctx)
270 : {
271 2003 : struct wpa_supplicant *wpa_s = ctx;
272 : int res, pmk_len;
273 : u8 pmk[PMK_LEN];
274 :
275 2003 : wpa_printf(MSG_DEBUG, "EAPOL authentication completed - result=%s",
276 : result_str(result));
277 :
278 2003 : if (wpas_wps_eapol_cb(wpa_s) > 0)
279 2277 : return;
280 :
281 1729 : wpa_s->eap_expected_failure = result ==
282 : EAPOL_SUPP_RESULT_EXPECTED_FAILURE;
283 :
284 1729 : if (result != EAPOL_SUPP_RESULT_SUCCESS) {
285 : /*
286 : * Make sure we do not get stuck here waiting for long EAPOL
287 : * timeout if the AP does not disconnect in case of
288 : * authentication failure.
289 : */
290 226 : wpa_supplicant_req_auth_timeout(wpa_s, 2, 0);
291 : } else {
292 1503 : ieee802_1x_notify_create_actor(wpa_s, wpa_s->last_eapol_src);
293 : }
294 :
295 3232 : if (result != EAPOL_SUPP_RESULT_SUCCESS ||
296 1503 : !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE))
297 1729 : return;
298 :
299 0 : if (!wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt))
300 0 : return;
301 :
302 0 : wpa_printf(MSG_DEBUG, "Configure PMK for driver-based RSN 4-way "
303 : "handshake");
304 :
305 0 : pmk_len = PMK_LEN;
306 0 : if (wpa_key_mgmt_ft(wpa_s->key_mgmt)) {
307 : #ifdef CONFIG_IEEE80211R
308 : u8 buf[2 * PMK_LEN];
309 0 : wpa_printf(MSG_DEBUG, "RSN: Use FT XXKey as PMK for "
310 : "driver-based 4-way hs and FT");
311 0 : res = eapol_sm_get_key(eapol, buf, 2 * PMK_LEN);
312 0 : if (res == 0) {
313 0 : os_memcpy(pmk, buf + PMK_LEN, PMK_LEN);
314 0 : os_memset(buf, 0, sizeof(buf));
315 : }
316 : #else /* CONFIG_IEEE80211R */
317 : res = -1;
318 : #endif /* CONFIG_IEEE80211R */
319 : } else {
320 0 : res = eapol_sm_get_key(eapol, pmk, PMK_LEN);
321 0 : if (res) {
322 : /*
323 : * EAP-LEAP is an exception from other EAP methods: it
324 : * uses only 16-byte PMK.
325 : */
326 0 : res = eapol_sm_get_key(eapol, pmk, 16);
327 0 : pmk_len = 16;
328 : }
329 : }
330 :
331 0 : if (res) {
332 0 : wpa_printf(MSG_DEBUG, "Failed to get PMK from EAPOL state "
333 : "machines");
334 0 : return;
335 : }
336 :
337 0 : wpa_hexdump_key(MSG_DEBUG, "RSN: Configure PMK for driver-based 4-way "
338 : "handshake", pmk, pmk_len);
339 :
340 0 : if (wpa_drv_set_key(wpa_s, WPA_ALG_PMK, NULL, 0, 0, NULL, 0, pmk,
341 : pmk_len)) {
342 0 : wpa_printf(MSG_DEBUG, "Failed to set PMK to the driver");
343 : }
344 :
345 0 : wpa_supplicant_cancel_scan(wpa_s);
346 0 : wpa_supplicant_cancel_auth_timeout(wpa_s);
347 0 : wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
348 :
349 : }
350 :
351 :
352 8 : static void wpa_supplicant_notify_eapol_done(void *ctx)
353 : {
354 8 : struct wpa_supplicant *wpa_s = ctx;
355 8 : wpa_msg(wpa_s, MSG_DEBUG, "WPA: EAPOL processing complete");
356 8 : if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
357 0 : wpa_supplicant_set_state(wpa_s, WPA_4WAY_HANDSHAKE);
358 : } else {
359 8 : wpa_supplicant_cancel_auth_timeout(wpa_s);
360 8 : wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
361 : }
362 8 : }
363 :
364 : #endif /* IEEE8021X_EAPOL */
365 :
366 :
367 : #ifndef CONFIG_NO_WPA
368 :
369 8 : static int wpa_get_beacon_ie(struct wpa_supplicant *wpa_s)
370 : {
371 8 : int ret = 0;
372 8 : struct wpa_bss *curr = NULL, *bss;
373 8 : struct wpa_ssid *ssid = wpa_s->current_ssid;
374 : const u8 *ie;
375 :
376 10 : dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
377 10 : if (os_memcmp(bss->bssid, wpa_s->bssid, ETH_ALEN) != 0)
378 2 : continue;
379 16 : if (ssid == NULL ||
380 16 : ((bss->ssid_len == ssid->ssid_len &&
381 8 : os_memcmp(bss->ssid, ssid->ssid, ssid->ssid_len) == 0) ||
382 0 : ssid->ssid_len == 0)) {
383 8 : curr = bss;
384 8 : break;
385 : }
386 : }
387 :
388 8 : if (curr) {
389 8 : ie = wpa_bss_get_vendor_ie(curr, WPA_IE_VENDOR_TYPE);
390 8 : if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
391 0 : ret = -1;
392 :
393 8 : ie = wpa_bss_get_ie(curr, WLAN_EID_RSN);
394 8 : if (wpa_sm_set_ap_rsn_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
395 0 : ret = -1;
396 : } else {
397 0 : ret = -1;
398 : }
399 :
400 8 : return ret;
401 : }
402 :
403 :
404 8 : static int wpa_supplicant_get_beacon_ie(void *ctx)
405 : {
406 8 : struct wpa_supplicant *wpa_s = ctx;
407 8 : if (wpa_get_beacon_ie(wpa_s) == 0) {
408 8 : return 0;
409 : }
410 :
411 : /* No WPA/RSN IE found in the cached scan results. Try to get updated
412 : * scan results from the driver. */
413 0 : if (wpa_supplicant_update_scan_results(wpa_s) < 0)
414 0 : return -1;
415 :
416 0 : return wpa_get_beacon_ie(wpa_s);
417 : }
418 :
419 :
420 2643 : static u8 * _wpa_alloc_eapol(void *wpa_s, u8 type,
421 : const void *data, u16 data_len,
422 : size_t *msg_len, void **data_pos)
423 : {
424 2643 : return wpa_alloc_eapol(wpa_s, type, data, data_len, msg_len, data_pos);
425 : }
426 :
427 :
428 2633 : static int _wpa_ether_send(void *wpa_s, const u8 *dest, u16 proto,
429 : const u8 *buf, size_t len)
430 : {
431 2633 : return wpa_ether_send(wpa_s, dest, proto, buf, len);
432 : }
433 :
434 :
435 1511 : static void _wpa_supplicant_cancel_auth_timeout(void *wpa_s)
436 : {
437 1511 : wpa_supplicant_cancel_auth_timeout(wpa_s);
438 1511 : }
439 :
440 :
441 5407 : static void _wpa_supplicant_set_state(void *wpa_s, enum wpa_states state)
442 : {
443 5407 : wpa_supplicant_set_state(wpa_s, state);
444 5407 : }
445 :
446 :
447 : /**
448 : * wpa_supplicant_get_state - Get the connection state
449 : * @wpa_s: Pointer to wpa_supplicant data
450 : * Returns: The current connection state (WPA_*)
451 : */
452 2360 : static enum wpa_states wpa_supplicant_get_state(struct wpa_supplicant *wpa_s)
453 : {
454 2360 : return wpa_s->wpa_state;
455 : }
456 :
457 :
458 2360 : static enum wpa_states _wpa_supplicant_get_state(void *wpa_s)
459 : {
460 2360 : return wpa_supplicant_get_state(wpa_s);
461 : }
462 :
463 :
464 35 : static void _wpa_supplicant_deauthenticate(void *wpa_s, int reason_code)
465 : {
466 35 : wpa_supplicant_deauthenticate(wpa_s, reason_code);
467 : /* Schedule a scan to make sure we continue looking for networks */
468 35 : wpa_supplicant_req_scan(wpa_s, 5, 0);
469 35 : }
470 :
471 :
472 1304 : static void * wpa_supplicant_get_network_ctx(void *wpa_s)
473 : {
474 1304 : return wpa_supplicant_get_ssid(wpa_s);
475 : }
476 :
477 :
478 14 : static int wpa_supplicant_get_bssid(void *ctx, u8 *bssid)
479 : {
480 14 : struct wpa_supplicant *wpa_s = ctx;
481 14 : return wpa_drv_get_bssid(wpa_s, bssid);
482 : }
483 :
484 :
485 3358 : static int wpa_supplicant_set_key(void *_wpa_s, enum wpa_alg alg,
486 : const u8 *addr, int key_idx, int set_tx,
487 : const u8 *seq, size_t seq_len,
488 : const u8 *key, size_t key_len)
489 : {
490 3358 : struct wpa_supplicant *wpa_s = _wpa_s;
491 3358 : if (alg == WPA_ALG_TKIP && key_idx == 0 && key_len == 32) {
492 : /* Clear the MIC error counter when setting a new PTK. */
493 22 : wpa_s->mic_errors_seen = 0;
494 : }
495 : #ifdef CONFIG_TESTING_GET_GTK
496 : if (key_idx > 0 && addr && is_broadcast_ether_addr(addr) &&
497 : alg != WPA_ALG_NONE && key_len <= sizeof(wpa_s->last_gtk)) {
498 : os_memcpy(wpa_s->last_gtk, key, key_len);
499 : wpa_s->last_gtk_len = key_len;
500 : }
501 : #endif /* CONFIG_TESTING_GET_GTK */
502 3358 : return wpa_drv_set_key(wpa_s, alg, addr, key_idx, set_tx, seq, seq_len,
503 : key, key_len);
504 : }
505 :
506 :
507 2762 : static int wpa_supplicant_mlme_setprotection(void *wpa_s, const u8 *addr,
508 : int protection_type,
509 : int key_type)
510 : {
511 2762 : return wpa_drv_mlme_setprotection(wpa_s, addr, protection_type,
512 : key_type);
513 : }
514 :
515 :
516 631 : static int wpa_supplicant_add_pmkid(void *wpa_s,
517 : const u8 *bssid, const u8 *pmkid)
518 : {
519 631 : return wpa_drv_add_pmkid(wpa_s, bssid, pmkid);
520 : }
521 :
522 :
523 631 : static int wpa_supplicant_remove_pmkid(void *wpa_s,
524 : const u8 *bssid, const u8 *pmkid)
525 : {
526 631 : return wpa_drv_remove_pmkid(wpa_s, bssid, pmkid);
527 : }
528 :
529 :
530 : #ifdef CONFIG_IEEE80211R
531 827 : static int wpa_supplicant_update_ft_ies(void *ctx, const u8 *md,
532 : const u8 *ies, size_t ies_len)
533 : {
534 827 : struct wpa_supplicant *wpa_s = ctx;
535 827 : if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
536 827 : return sme_update_ft_ies(wpa_s, md, ies, ies_len);
537 0 : return wpa_drv_update_ft_ies(wpa_s, md, ies, ies_len);
538 : }
539 :
540 :
541 114 : static int wpa_supplicant_send_ft_action(void *ctx, u8 action,
542 : const u8 *target_ap,
543 : const u8 *ies, size_t ies_len)
544 : {
545 114 : struct wpa_supplicant *wpa_s = ctx;
546 : int ret;
547 : u8 *data, *pos;
548 : size_t data_len;
549 :
550 114 : if (action != 1) {
551 0 : wpa_printf(MSG_ERROR, "Unsupported send_ft_action action %d",
552 : action);
553 0 : return -1;
554 : }
555 :
556 : /*
557 : * Action frame payload:
558 : * Category[1] = 6 (Fast BSS Transition)
559 : * Action[1] = 1 (Fast BSS Transition Request)
560 : * STA Address
561 : * Target AP Address
562 : * FT IEs
563 : */
564 :
565 114 : data_len = 2 + 2 * ETH_ALEN + ies_len;
566 114 : data = os_malloc(data_len);
567 114 : if (data == NULL)
568 0 : return -1;
569 114 : pos = data;
570 114 : *pos++ = 0x06; /* FT Action category */
571 114 : *pos++ = action;
572 114 : os_memcpy(pos, wpa_s->own_addr, ETH_ALEN);
573 114 : pos += ETH_ALEN;
574 114 : os_memcpy(pos, target_ap, ETH_ALEN);
575 114 : pos += ETH_ALEN;
576 114 : os_memcpy(pos, ies, ies_len);
577 :
578 114 : ret = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0,
579 114 : wpa_s->bssid, wpa_s->own_addr, wpa_s->bssid,
580 : data, data_len, 0);
581 114 : os_free(data);
582 :
583 114 : return ret;
584 : }
585 :
586 :
587 221 : static int wpa_supplicant_mark_authenticated(void *ctx, const u8 *target_ap)
588 : {
589 221 : struct wpa_supplicant *wpa_s = ctx;
590 : struct wpa_driver_auth_params params;
591 : struct wpa_bss *bss;
592 :
593 221 : bss = wpa_bss_get_bssid(wpa_s, target_ap);
594 221 : if (bss == NULL)
595 0 : return -1;
596 :
597 221 : os_memset(¶ms, 0, sizeof(params));
598 221 : params.bssid = target_ap;
599 221 : params.freq = bss->freq;
600 221 : params.ssid = bss->ssid;
601 221 : params.ssid_len = bss->ssid_len;
602 221 : params.auth_alg = WPA_AUTH_ALG_FT;
603 221 : params.local_state_change = 1;
604 221 : return wpa_drv_authenticate(wpa_s, ¶ms);
605 : }
606 : #endif /* CONFIG_IEEE80211R */
607 :
608 :
609 : #ifdef CONFIG_TDLS
610 :
611 187 : static int wpa_supplicant_tdls_get_capa(void *ctx, int *tdls_supported,
612 : int *tdls_ext_setup,
613 : int *tdls_chan_switch)
614 : {
615 187 : struct wpa_supplicant *wpa_s = ctx;
616 :
617 187 : *tdls_supported = 0;
618 187 : *tdls_ext_setup = 0;
619 187 : *tdls_chan_switch = 0;
620 :
621 187 : if (!wpa_s->drv_capa_known)
622 31 : return -1;
623 :
624 156 : if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)
625 146 : *tdls_supported = 1;
626 :
627 156 : if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP)
628 146 : *tdls_ext_setup = 1;
629 :
630 156 : if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH)
631 146 : *tdls_chan_switch = 1;
632 :
633 156 : return 0;
634 : }
635 :
636 :
637 128 : static int wpa_supplicant_send_tdls_mgmt(void *ctx, const u8 *dst,
638 : u8 action_code, u8 dialog_token,
639 : u16 status_code, u32 peer_capab,
640 : int initiator, const u8 *buf,
641 : size_t len)
642 : {
643 128 : struct wpa_supplicant *wpa_s = ctx;
644 128 : return wpa_drv_send_tdls_mgmt(wpa_s, dst, action_code, dialog_token,
645 : status_code, peer_capab, initiator, buf,
646 : len);
647 : }
648 :
649 :
650 108 : static int wpa_supplicant_tdls_oper(void *ctx, int oper, const u8 *peer)
651 : {
652 108 : struct wpa_supplicant *wpa_s = ctx;
653 108 : return wpa_drv_tdls_oper(wpa_s, oper, peer);
654 : }
655 :
656 :
657 107 : static int wpa_supplicant_tdls_peer_addset(
658 : void *ctx, const u8 *peer, int add, u16 aid, u16 capability,
659 : const u8 *supp_rates, size_t supp_rates_len,
660 : const struct ieee80211_ht_capabilities *ht_capab,
661 : const struct ieee80211_vht_capabilities *vht_capab,
662 : u8 qosinfo, int wmm, const u8 *ext_capab, size_t ext_capab_len,
663 : const u8 *supp_channels, size_t supp_channels_len,
664 : const u8 *supp_oper_classes, size_t supp_oper_classes_len)
665 : {
666 107 : struct wpa_supplicant *wpa_s = ctx;
667 : struct hostapd_sta_add_params params;
668 :
669 107 : os_memset(¶ms, 0, sizeof(params));
670 :
671 107 : params.addr = peer;
672 107 : params.aid = aid;
673 107 : params.capability = capability;
674 107 : params.flags = WPA_STA_TDLS_PEER | WPA_STA_AUTHORIZED;
675 :
676 : /*
677 : * Don't rely only on qosinfo for WMM capability. It may be 0 even when
678 : * present. Allow the WMM IE to also indicate QoS support.
679 : */
680 107 : if (wmm || qosinfo)
681 76 : params.flags |= WPA_STA_WMM;
682 :
683 107 : params.ht_capabilities = ht_capab;
684 107 : params.vht_capabilities = vht_capab;
685 107 : params.qosinfo = qosinfo;
686 107 : params.listen_interval = 0;
687 107 : params.supp_rates = supp_rates;
688 107 : params.supp_rates_len = supp_rates_len;
689 107 : params.set = !add;
690 107 : params.ext_capab = ext_capab;
691 107 : params.ext_capab_len = ext_capab_len;
692 107 : params.supp_channels = supp_channels;
693 107 : params.supp_channels_len = supp_channels_len;
694 107 : params.supp_oper_classes = supp_oper_classes;
695 107 : params.supp_oper_classes_len = supp_oper_classes_len;
696 :
697 107 : return wpa_drv_sta_add(wpa_s, ¶ms);
698 : }
699 :
700 :
701 1 : static int wpa_supplicant_tdls_enable_channel_switch(
702 : void *ctx, const u8 *addr, u8 oper_class,
703 : const struct hostapd_freq_params *params)
704 : {
705 1 : struct wpa_supplicant *wpa_s = ctx;
706 :
707 1 : return wpa_drv_tdls_enable_channel_switch(wpa_s, addr, oper_class,
708 : params);
709 : }
710 :
711 :
712 1 : static int wpa_supplicant_tdls_disable_channel_switch(void *ctx, const u8 *addr)
713 : {
714 1 : struct wpa_supplicant *wpa_s = ctx;
715 :
716 1 : return wpa_drv_tdls_disable_channel_switch(wpa_s, addr);
717 : }
718 :
719 : #endif /* CONFIG_TDLS */
720 :
721 : #endif /* CONFIG_NO_WPA */
722 :
723 :
724 46 : enum wpa_ctrl_req_type wpa_supplicant_ctrl_req_from_string(const char *field)
725 : {
726 46 : if (os_strcmp(field, "IDENTITY") == 0)
727 3 : return WPA_CTRL_REQ_EAP_IDENTITY;
728 43 : else if (os_strcmp(field, "PASSWORD") == 0)
729 8 : return WPA_CTRL_REQ_EAP_PASSWORD;
730 35 : else if (os_strcmp(field, "NEW_PASSWORD") == 0)
731 2 : return WPA_CTRL_REQ_EAP_NEW_PASSWORD;
732 33 : else if (os_strcmp(field, "PIN") == 0)
733 2 : return WPA_CTRL_REQ_EAP_PIN;
734 31 : else if (os_strcmp(field, "OTP") == 0)
735 4 : return WPA_CTRL_REQ_EAP_OTP;
736 27 : else if (os_strcmp(field, "PASSPHRASE") == 0)
737 3 : return WPA_CTRL_REQ_EAP_PASSPHRASE;
738 24 : else if (os_strcmp(field, "SIM") == 0)
739 23 : return WPA_CTRL_REQ_SIM;
740 1 : return WPA_CTRL_REQ_UNKNOWN;
741 : }
742 :
743 :
744 64 : const char * wpa_supplicant_ctrl_req_to_string(enum wpa_ctrl_req_type field,
745 : const char *default_txt,
746 : const char **txt)
747 : {
748 64 : const char *ret = NULL;
749 :
750 64 : *txt = default_txt;
751 :
752 64 : switch (field) {
753 : case WPA_CTRL_REQ_EAP_IDENTITY:
754 2 : *txt = "Identity";
755 2 : ret = "IDENTITY";
756 2 : break;
757 : case WPA_CTRL_REQ_EAP_PASSWORD:
758 14 : *txt = "Password";
759 14 : ret = "PASSWORD";
760 14 : break;
761 : case WPA_CTRL_REQ_EAP_NEW_PASSWORD:
762 0 : *txt = "New Password";
763 0 : ret = "NEW_PASSWORD";
764 0 : break;
765 : case WPA_CTRL_REQ_EAP_PIN:
766 0 : *txt = "PIN";
767 0 : ret = "PIN";
768 0 : break;
769 : case WPA_CTRL_REQ_EAP_OTP:
770 4 : ret = "OTP";
771 4 : break;
772 : case WPA_CTRL_REQ_EAP_PASSPHRASE:
773 2 : *txt = "Private key passphrase";
774 2 : ret = "PASSPHRASE";
775 2 : break;
776 : case WPA_CTRL_REQ_SIM:
777 42 : ret = "SIM";
778 42 : break;
779 : default:
780 0 : break;
781 : }
782 :
783 : /* txt needs to be something */
784 64 : if (*txt == NULL) {
785 0 : wpa_printf(MSG_WARNING, "No message for request %d", field);
786 0 : ret = NULL;
787 : }
788 :
789 64 : return ret;
790 : }
791 :
792 : #ifdef IEEE8021X_EAPOL
793 : #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG)
794 32 : static void wpa_supplicant_eap_param_needed(void *ctx,
795 : enum wpa_ctrl_req_type field,
796 : const char *default_txt)
797 : {
798 32 : struct wpa_supplicant *wpa_s = ctx;
799 32 : struct wpa_ssid *ssid = wpa_s->current_ssid;
800 32 : const char *field_name, *txt = NULL;
801 : char *buf;
802 : size_t buflen;
803 : int len;
804 :
805 32 : if (ssid == NULL)
806 0 : return;
807 :
808 32 : wpas_notify_network_request(wpa_s, ssid, field, default_txt);
809 :
810 32 : field_name = wpa_supplicant_ctrl_req_to_string(field, default_txt,
811 : &txt);
812 32 : if (field_name == NULL) {
813 0 : wpa_printf(MSG_WARNING, "Unhandled EAP param %d needed",
814 : field);
815 0 : return;
816 : }
817 :
818 32 : wpas_notify_eap_status(wpa_s, "eap parameter needed", field_name);
819 :
820 32 : buflen = 100 + os_strlen(txt) + ssid->ssid_len;
821 32 : buf = os_malloc(buflen);
822 32 : if (buf == NULL)
823 0 : return;
824 32 : len = os_snprintf(buf, buflen,
825 : WPA_CTRL_REQ "%s-%d:%s needed for SSID ",
826 : field_name, ssid->id, txt);
827 32 : if (os_snprintf_error(buflen, len)) {
828 0 : os_free(buf);
829 0 : return;
830 : }
831 32 : if (ssid->ssid && buflen > len + ssid->ssid_len) {
832 32 : os_memcpy(buf + len, ssid->ssid, ssid->ssid_len);
833 32 : len += ssid->ssid_len;
834 32 : buf[len] = '\0';
835 : }
836 32 : buf[buflen - 1] = '\0';
837 32 : wpa_msg(wpa_s, MSG_INFO, "%s", buf);
838 32 : os_free(buf);
839 : }
840 : #else /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
841 : #define wpa_supplicant_eap_param_needed NULL
842 : #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
843 :
844 :
845 4990 : static void wpa_supplicant_port_cb(void *ctx, int authorized)
846 : {
847 4990 : struct wpa_supplicant *wpa_s = ctx;
848 : #ifdef CONFIG_AP
849 4990 : if (wpa_s->ap_iface) {
850 0 : wpa_printf(MSG_DEBUG, "AP mode active - skip EAPOL Supplicant "
851 : "port status: %s",
852 : authorized ? "Authorized" : "Unauthorized");
853 4990 : return;
854 : }
855 : #endif /* CONFIG_AP */
856 4990 : wpa_printf(MSG_DEBUG, "EAPOL: Supplicant port status: %s",
857 : authorized ? "Authorized" : "Unauthorized");
858 4990 : wpa_drv_set_supp_port(wpa_s, authorized);
859 : }
860 :
861 :
862 483 : static void wpa_supplicant_cert_cb(void *ctx, int depth, const char *subject,
863 : const char *altsubject[], int num_altsubject,
864 : const char *cert_hash,
865 : const struct wpabuf *cert)
866 : {
867 483 : struct wpa_supplicant *wpa_s = ctx;
868 :
869 483 : wpas_notify_certification(wpa_s, depth, subject, altsubject,
870 : num_altsubject, cert_hash, cert);
871 483 : }
872 :
873 :
874 4216 : static void wpa_supplicant_status_cb(void *ctx, const char *status,
875 : const char *parameter)
876 : {
877 4216 : struct wpa_supplicant *wpa_s = ctx;
878 :
879 4216 : wpas_notify_eap_status(wpa_s, status, parameter);
880 4216 : }
881 :
882 :
883 52 : static void wpa_supplicant_set_anon_id(void *ctx, const u8 *id, size_t len)
884 : {
885 52 : struct wpa_supplicant *wpa_s = ctx;
886 : char *str;
887 : int res;
888 :
889 52 : wpa_hexdump_ascii(MSG_DEBUG, "EAP method updated anonymous_identity",
890 : id, len);
891 :
892 52 : if (wpa_s->current_ssid == NULL)
893 0 : return;
894 :
895 52 : if (id == NULL) {
896 5 : if (wpa_config_set(wpa_s->current_ssid, "anonymous_identity",
897 : "NULL", 0) < 0)
898 0 : return;
899 : } else {
900 47 : str = os_malloc(len * 2 + 1);
901 47 : if (str == NULL)
902 0 : return;
903 47 : wpa_snprintf_hex(str, len * 2 + 1, id, len);
904 47 : res = wpa_config_set(wpa_s->current_ssid, "anonymous_identity",
905 : str, 0);
906 47 : os_free(str);
907 47 : if (res < 0)
908 0 : return;
909 : }
910 :
911 52 : if (wpa_s->conf->update_config) {
912 0 : res = wpa_config_write(wpa_s->confname, wpa_s->conf);
913 0 : if (res) {
914 0 : wpa_printf(MSG_DEBUG, "Failed to update config after "
915 : "anonymous_id update");
916 : }
917 : }
918 : }
919 : #endif /* IEEE8021X_EAPOL */
920 :
921 :
922 195 : int wpa_supplicant_init_eapol(struct wpa_supplicant *wpa_s)
923 : {
924 : #ifdef IEEE8021X_EAPOL
925 : struct eapol_ctx *ctx;
926 195 : ctx = os_zalloc(sizeof(*ctx));
927 195 : if (ctx == NULL) {
928 1 : wpa_printf(MSG_ERROR, "Failed to allocate EAPOL context.");
929 1 : return -1;
930 : }
931 :
932 194 : ctx->ctx = wpa_s;
933 194 : ctx->msg_ctx = wpa_s;
934 194 : ctx->eapol_send_ctx = wpa_s;
935 194 : ctx->preauth = 0;
936 194 : ctx->eapol_done_cb = wpa_supplicant_notify_eapol_done;
937 194 : ctx->eapol_send = wpa_supplicant_eapol_send;
938 194 : ctx->set_wep_key = wpa_eapol_set_wep_key;
939 : #ifndef CONFIG_NO_CONFIG_BLOBS
940 194 : ctx->set_config_blob = wpa_supplicant_set_config_blob;
941 194 : ctx->get_config_blob = wpa_supplicant_get_config_blob;
942 : #endif /* CONFIG_NO_CONFIG_BLOBS */
943 194 : ctx->aborted_cached = wpa_supplicant_aborted_cached;
944 194 : ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path;
945 194 : ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path;
946 194 : ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path;
947 194 : ctx->openssl_ciphers = wpa_s->conf->openssl_ciphers;
948 194 : ctx->wps = wpa_s->wps;
949 194 : ctx->eap_param_needed = wpa_supplicant_eap_param_needed;
950 194 : ctx->port_cb = wpa_supplicant_port_cb;
951 194 : ctx->cb = wpa_supplicant_eapol_cb;
952 194 : ctx->cert_cb = wpa_supplicant_cert_cb;
953 194 : ctx->cert_in_cb = wpa_s->conf->cert_in_cb;
954 194 : ctx->status_cb = wpa_supplicant_status_cb;
955 194 : ctx->set_anon_id = wpa_supplicant_set_anon_id;
956 194 : ctx->cb_ctx = wpa_s;
957 194 : wpa_s->eapol = eapol_sm_init(ctx);
958 194 : if (wpa_s->eapol == NULL) {
959 3 : os_free(ctx);
960 3 : wpa_printf(MSG_ERROR, "Failed to initialize EAPOL state "
961 : "machines.");
962 3 : return -1;
963 : }
964 : #endif /* IEEE8021X_EAPOL */
965 :
966 191 : return 0;
967 : }
968 :
969 :
970 : #ifndef CONFIG_NO_WPA
971 1290 : static void wpa_supplicant_set_rekey_offload(void *ctx,
972 : const u8 *kek, size_t kek_len,
973 : const u8 *kck, size_t kck_len,
974 : const u8 *replay_ctr)
975 : {
976 1290 : struct wpa_supplicant *wpa_s = ctx;
977 :
978 1290 : wpa_drv_set_rekey_info(wpa_s, kek, kek_len, kck, kck_len, replay_ctr);
979 1290 : }
980 : #endif /* CONFIG_NO_WPA */
981 :
982 :
983 8 : static int wpa_supplicant_key_mgmt_set_pmk(void *ctx, const u8 *pmk,
984 : size_t pmk_len)
985 : {
986 8 : struct wpa_supplicant *wpa_s = ctx;
987 :
988 8 : if (wpa_s->conf->key_mgmt_offload)
989 8 : return wpa_drv_set_key(wpa_s, WPA_ALG_PMK, NULL, 0, 0,
990 : NULL, 0, pmk, pmk_len);
991 : else
992 0 : return 0;
993 : }
994 :
995 :
996 198 : int wpa_supplicant_init_wpa(struct wpa_supplicant *wpa_s)
997 : {
998 : #ifndef CONFIG_NO_WPA
999 : struct wpa_sm_ctx *ctx;
1000 198 : ctx = os_zalloc(sizeof(*ctx));
1001 198 : if (ctx == NULL) {
1002 1 : wpa_printf(MSG_ERROR, "Failed to allocate WPA context.");
1003 1 : return -1;
1004 : }
1005 :
1006 197 : ctx->ctx = wpa_s;
1007 197 : ctx->msg_ctx = wpa_s;
1008 197 : ctx->set_state = _wpa_supplicant_set_state;
1009 197 : ctx->get_state = _wpa_supplicant_get_state;
1010 197 : ctx->deauthenticate = _wpa_supplicant_deauthenticate;
1011 197 : ctx->set_key = wpa_supplicant_set_key;
1012 197 : ctx->get_network_ctx = wpa_supplicant_get_network_ctx;
1013 197 : ctx->get_bssid = wpa_supplicant_get_bssid;
1014 197 : ctx->ether_send = _wpa_ether_send;
1015 197 : ctx->get_beacon_ie = wpa_supplicant_get_beacon_ie;
1016 197 : ctx->alloc_eapol = _wpa_alloc_eapol;
1017 197 : ctx->cancel_auth_timeout = _wpa_supplicant_cancel_auth_timeout;
1018 197 : ctx->add_pmkid = wpa_supplicant_add_pmkid;
1019 197 : ctx->remove_pmkid = wpa_supplicant_remove_pmkid;
1020 : #ifndef CONFIG_NO_CONFIG_BLOBS
1021 197 : ctx->set_config_blob = wpa_supplicant_set_config_blob;
1022 197 : ctx->get_config_blob = wpa_supplicant_get_config_blob;
1023 : #endif /* CONFIG_NO_CONFIG_BLOBS */
1024 197 : ctx->mlme_setprotection = wpa_supplicant_mlme_setprotection;
1025 : #ifdef CONFIG_IEEE80211R
1026 197 : ctx->update_ft_ies = wpa_supplicant_update_ft_ies;
1027 197 : ctx->send_ft_action = wpa_supplicant_send_ft_action;
1028 197 : ctx->mark_authenticated = wpa_supplicant_mark_authenticated;
1029 : #endif /* CONFIG_IEEE80211R */
1030 : #ifdef CONFIG_TDLS
1031 197 : ctx->tdls_get_capa = wpa_supplicant_tdls_get_capa;
1032 197 : ctx->send_tdls_mgmt = wpa_supplicant_send_tdls_mgmt;
1033 197 : ctx->tdls_oper = wpa_supplicant_tdls_oper;
1034 197 : ctx->tdls_peer_addset = wpa_supplicant_tdls_peer_addset;
1035 197 : ctx->tdls_enable_channel_switch =
1036 : wpa_supplicant_tdls_enable_channel_switch;
1037 197 : ctx->tdls_disable_channel_switch =
1038 : wpa_supplicant_tdls_disable_channel_switch;
1039 : #endif /* CONFIG_TDLS */
1040 197 : ctx->set_rekey_offload = wpa_supplicant_set_rekey_offload;
1041 197 : ctx->key_mgmt_set_pmk = wpa_supplicant_key_mgmt_set_pmk;
1042 :
1043 197 : wpa_s->wpa = wpa_sm_init(ctx);
1044 197 : if (wpa_s->wpa == NULL) {
1045 2 : wpa_printf(MSG_ERROR, "Failed to initialize WPA state "
1046 : "machine");
1047 2 : os_free(ctx);
1048 2 : return -1;
1049 : }
1050 : #endif /* CONFIG_NO_WPA */
1051 :
1052 195 : return 0;
1053 : }
1054 :
1055 :
1056 2478 : void wpa_supplicant_rsn_supp_set_config(struct wpa_supplicant *wpa_s,
1057 : struct wpa_ssid *ssid)
1058 : {
1059 : struct rsn_supp_config conf;
1060 2478 : if (ssid) {
1061 2478 : os_memset(&conf, 0, sizeof(conf));
1062 2478 : conf.network_ctx = ssid;
1063 2478 : conf.peerkey_enabled = ssid->peerkey;
1064 2478 : conf.allowed_pairwise_cipher = ssid->pairwise_cipher;
1065 : #ifdef IEEE8021X_EAPOL
1066 4956 : conf.proactive_key_caching = ssid->proactive_key_caching < 0 ?
1067 2478 : wpa_s->conf->okc : ssid->proactive_key_caching;
1068 2478 : conf.eap_workaround = ssid->eap_workaround;
1069 2478 : conf.eap_conf_ctx = &ssid->eap;
1070 : #endif /* IEEE8021X_EAPOL */
1071 2478 : conf.ssid = ssid->ssid;
1072 2478 : conf.ssid_len = ssid->ssid_len;
1073 2478 : conf.wpa_ptk_rekey = ssid->wpa_ptk_rekey;
1074 : #ifdef CONFIG_P2P
1075 2839 : if (ssid->p2p_group && wpa_s->current_bss &&
1076 361 : !wpa_s->p2p_disable_ip_addr_req) {
1077 : struct wpabuf *p2p;
1078 359 : p2p = wpa_bss_get_vendor_ie_multi(wpa_s->current_bss,
1079 : P2P_IE_VENDOR_TYPE);
1080 359 : if (p2p) {
1081 : u8 group_capab;
1082 359 : group_capab = p2p_get_group_capab(p2p);
1083 359 : if (group_capab &
1084 : P2P_GROUP_CAPAB_IP_ADDR_ALLOCATION)
1085 359 : conf.p2p = 1;
1086 359 : wpabuf_free(p2p);
1087 : }
1088 : }
1089 : #endif /* CONFIG_P2P */
1090 : }
1091 2478 : wpa_sm_set_config(wpa_s->wpa, ssid ? &conf : NULL);
1092 2478 : }
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