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 -1;
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, -1, 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_MAX];
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 int timeout = 2;
302 /*
303 * Make sure we do not get stuck here waiting for long EAPOL
304 * timeout if the AP does not disconnect in case of
305 * authentication failure.
306 */
307 if (wpa_s->eapol_failed) {
308 wpa_printf(MSG_DEBUG,
309 "EAPOL authentication failed again and AP did not disconnect us");
310 timeout = 0;
311 }
312 wpa_s->eapol_failed = 1;
313 wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0);
314 } else {
315 wpa_s->eapol_failed = 0;
316 ieee802_1x_notify_create_actor(wpa_s, wpa_s->last_eapol_src);
317 }
318
319 if (result != EAPOL_SUPP_RESULT_SUCCESS ||
320 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X))
321 return;
322
323 if (!wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt))
324 return;
325
326 wpa_printf(MSG_DEBUG, "Configure PMK for driver-based RSN 4-way "
327 "handshake");
328
329 if (wpa_key_mgmt_sha384(wpa_s->key_mgmt))
330 pmk_len = PMK_LEN_SUITE_B_192;
331 else
332 pmk_len = PMK_LEN;
333
334 if (wpa_key_mgmt_ft(wpa_s->key_mgmt)) {
335 #ifdef CONFIG_IEEE80211R
336 u8 buf[2 * PMK_LEN];
337 wpa_printf(MSG_DEBUG, "RSN: Use FT XXKey as PMK for "
338 "driver-based 4-way hs and FT");
339 res = eapol_sm_get_key(eapol, buf, 2 * PMK_LEN);
340 if (res == 0) {
341 os_memcpy(pmk, buf + PMK_LEN, PMK_LEN);
342 os_memset(buf, 0, sizeof(buf));
343 }
344 #else /* CONFIG_IEEE80211R */
345 res = -1;
346 #endif /* CONFIG_IEEE80211R */
347 } else {
348 res = eapol_sm_get_key(eapol, pmk, pmk_len);
349 if (res) {
350 /*
351 * EAP-LEAP is an exception from other EAP methods: it
352 * uses only 16-byte PMK.
353 */
354 res = eapol_sm_get_key(eapol, pmk, 16);
355 pmk_len = 16;
356 }
357 }
358
359 if (res) {
360 wpa_printf(MSG_DEBUG, "Failed to get PMK from EAPOL state "
361 "machines");
362 return;
363 }
364
365 wpa_hexdump_key(MSG_DEBUG, "RSN: Configure PMK for driver-based 4-way "
366 "handshake", pmk, pmk_len);
367
368 if (wpa_drv_set_key(wpa_s, -1, 0, NULL, 0, 0, NULL, 0, pmk,
369 pmk_len, KEY_FLAG_PMK)) {
370 wpa_printf(MSG_DEBUG, "Failed to set PMK to the driver");
371 }
372
373 wpa_supplicant_cancel_scan(wpa_s);
374 wpa_supplicant_cancel_auth_timeout(wpa_s);
375 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
376
377 }
378
379
wpa_supplicant_notify_eapol_done(void * ctx)380 static void wpa_supplicant_notify_eapol_done(void *ctx)
381 {
382 struct wpa_supplicant *wpa_s = ctx;
383 wpa_msg(wpa_s, MSG_DEBUG, "WPA: EAPOL processing complete");
384 if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
385 wpa_supplicant_set_state(wpa_s, WPA_4WAY_HANDSHAKE);
386 } else {
387 wpa_supplicant_cancel_auth_timeout(wpa_s);
388 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
389 }
390 }
391
392 #endif /* IEEE8021X_EAPOL */
393
394
395 #ifndef CONFIG_NO_WPA
396
wpa_get_beacon_ie(struct wpa_supplicant * wpa_s)397 static int wpa_get_beacon_ie(struct wpa_supplicant *wpa_s)
398 {
399 int ret = 0;
400 struct wpa_bss *curr = NULL, *bss;
401 struct wpa_ssid *ssid = wpa_s->current_ssid;
402 const u8 *ie;
403
404 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
405 if (!ether_addr_equal(bss->bssid, wpa_s->bssid))
406 continue;
407 if (ssid == NULL ||
408 ((bss->ssid_len == ssid->ssid_len &&
409 os_memcmp(bss->ssid, ssid->ssid, ssid->ssid_len) == 0) ||
410 ssid->ssid_len == 0)) {
411 curr = bss;
412 break;
413 }
414 #ifdef CONFIG_OWE
415 if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_OWE) &&
416 (bss->flags & WPA_BSS_OWE_TRANSITION)) {
417 curr = bss;
418 break;
419 }
420 #endif /* CONFIG_OWE */
421 }
422
423 if (curr) {
424 ie = wpa_bss_get_vendor_ie(curr, WPA_IE_VENDOR_TYPE);
425 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
426 ret = -1;
427
428 ie = wpa_bss_get_ie(curr, WLAN_EID_RSN);
429 if (wpa_sm_set_ap_rsn_ie(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
430 ret = -1;
431
432 ie = wpa_bss_get_ie(curr, WLAN_EID_RSNX);
433 if (wpa_sm_set_ap_rsnxe(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0))
434 ret = -1;
435 } else {
436 ret = -1;
437 }
438
439 return ret;
440 }
441
442
wpa_supplicant_get_beacon_ie(void * ctx)443 static int wpa_supplicant_get_beacon_ie(void *ctx)
444 {
445 struct wpa_supplicant *wpa_s = ctx;
446 if (wpa_get_beacon_ie(wpa_s) == 0) {
447 return 0;
448 }
449
450 /* No WPA/RSN IE found in the cached scan results. Try to get updated
451 * scan results from the driver. */
452 if (wpa_supplicant_update_scan_results(wpa_s, wpa_s->bssid) < 0)
453 return -1;
454
455 return wpa_get_beacon_ie(wpa_s);
456 }
457
458
_wpa_alloc_eapol(void * wpa_s,u8 type,const void * data,u16 data_len,size_t * msg_len,void ** data_pos)459 static u8 * _wpa_alloc_eapol(void *wpa_s, u8 type,
460 const void *data, u16 data_len,
461 size_t *msg_len, void **data_pos)
462 {
463 return wpa_alloc_eapol(wpa_s, type, data, data_len, msg_len, data_pos);
464 }
465
466
_wpa_ether_send(void * wpa_s,const u8 * dest,u16 proto,const u8 * buf,size_t len)467 static int _wpa_ether_send(void *wpa_s, const u8 *dest, u16 proto,
468 const u8 *buf, size_t len)
469 {
470 return wpa_ether_send(wpa_s, dest, proto, buf, len);
471 }
472
473
_wpa_supplicant_cancel_auth_timeout(void * wpa_s)474 static void _wpa_supplicant_cancel_auth_timeout(void *wpa_s)
475 {
476 wpa_supplicant_cancel_auth_timeout(wpa_s);
477 }
478
479
_wpa_supplicant_set_state(void * wpa_s,enum wpa_states state)480 static void _wpa_supplicant_set_state(void *wpa_s, enum wpa_states state)
481 {
482 wpa_supplicant_set_state(wpa_s, state);
483 }
484
485
486 /**
487 * wpa_supplicant_get_state - Get the connection state
488 * @wpa_s: Pointer to wpa_supplicant data
489 * Returns: The current connection state (WPA_*)
490 */
wpa_supplicant_get_state(struct wpa_supplicant * wpa_s)491 static enum wpa_states wpa_supplicant_get_state(struct wpa_supplicant *wpa_s)
492 {
493 return wpa_s->wpa_state;
494 }
495
496
_wpa_supplicant_get_state(void * wpa_s)497 static enum wpa_states _wpa_supplicant_get_state(void *wpa_s)
498 {
499 return wpa_supplicant_get_state(wpa_s);
500 }
501
502
_wpa_supplicant_deauthenticate(void * wpa_s,u16 reason_code)503 static void _wpa_supplicant_deauthenticate(void *wpa_s, u16 reason_code)
504 {
505 wpa_supplicant_deauthenticate(wpa_s, reason_code);
506 /* Schedule a scan to make sure we continue looking for networks */
507 wpa_supplicant_req_scan(wpa_s, 5, 0);
508 }
509
510
_wpa_supplicant_reconnect(void * wpa_s)511 static void _wpa_supplicant_reconnect(void *wpa_s)
512 {
513 wpa_supplicant_reconnect(wpa_s);
514 }
515
516
wpa_supplicant_get_network_ctx(void * wpa_s)517 static void * wpa_supplicant_get_network_ctx(void *wpa_s)
518 {
519 return wpa_supplicant_get_ssid(wpa_s);
520 }
521
522
wpa_supplicant_get_bssid(void * ctx,u8 * bssid)523 static int wpa_supplicant_get_bssid(void *ctx, u8 *bssid)
524 {
525 struct wpa_supplicant *wpa_s = ctx;
526 return wpa_drv_get_bssid(wpa_s, bssid);
527 }
528
529
wpa_supplicant_set_key(void * _wpa_s,int link_id,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)530 static int wpa_supplicant_set_key(void *_wpa_s, int link_id, enum wpa_alg alg,
531 const u8 *addr, int key_idx, int set_tx,
532 const u8 *seq, size_t seq_len,
533 const u8 *key, size_t key_len,
534 enum key_flag key_flag)
535 {
536 struct wpa_supplicant *wpa_s = _wpa_s;
537 int ret;
538
539 if (alg == WPA_ALG_TKIP && key_idx == 0 && key_len == 32) {
540 /* Clear the MIC error counter when setting a new PTK. */
541 wpa_s->mic_errors_seen = 0;
542 }
543 #ifdef CONFIG_TESTING_GET_GTK
544 if (key_idx > 0 && addr && is_broadcast_ether_addr(addr) &&
545 alg != WPA_ALG_NONE && key_len <= sizeof(wpa_s->last_gtk)) {
546 os_memcpy(wpa_s->last_gtk, key, key_len);
547 wpa_s->last_gtk_len = key_len;
548 }
549 #endif /* CONFIG_TESTING_GET_GTK */
550 #ifdef CONFIG_TESTING_OPTIONS
551 if (addr && !is_broadcast_ether_addr(addr) &&
552 !(key_flag & KEY_FLAG_MODIFY)) {
553 wpa_s->last_tk_alg = alg;
554 os_memcpy(wpa_s->last_tk_addr, addr, ETH_ALEN);
555 wpa_s->last_tk_key_idx = key_idx;
556 if (key)
557 os_memcpy(wpa_s->last_tk, key, key_len);
558 wpa_s->last_tk_len = key_len;
559 }
560 #endif /* CONFIG_TESTING_OPTIONS */
561
562 ret = wpa_drv_set_key(wpa_s, link_id, alg, addr, key_idx, set_tx, seq,
563 seq_len, key, key_len, key_flag);
564 if (ret == 0 && (key_idx == 6 || key_idx == 7) &&
565 alg != WPA_ALG_NONE && key_len > 0)
566 wpa_s->bigtk_set = true;
567
568 return ret;
569 }
570
571
wpa_supplicant_mlme_setprotection(void * wpa_s,const u8 * addr,int protection_type,int key_type)572 static int wpa_supplicant_mlme_setprotection(void *wpa_s, const u8 *addr,
573 int protection_type,
574 int key_type)
575 {
576 return wpa_drv_mlme_setprotection(wpa_s, addr, protection_type,
577 key_type);
578 }
579
580
wpas_get_network_ctx(struct wpa_supplicant * wpa_s,void * network_ctx)581 static struct wpa_ssid * wpas_get_network_ctx(struct wpa_supplicant *wpa_s,
582 void *network_ctx)
583 {
584 struct wpa_ssid *ssid;
585
586 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
587 if (network_ctx == ssid)
588 return ssid;
589 }
590
591 return NULL;
592 }
593
594
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)595 static int wpa_supplicant_add_pmkid(void *_wpa_s, void *network_ctx,
596 const u8 *bssid, const u8 *pmkid,
597 const u8 *fils_cache_id,
598 const u8 *pmk, size_t pmk_len,
599 u32 pmk_lifetime, u8 pmk_reauth_threshold,
600 int akmp)
601 {
602 struct wpa_supplicant *wpa_s = _wpa_s;
603 struct wpa_ssid *ssid;
604 struct wpa_pmkid_params params;
605
606 os_memset(¶ms, 0, sizeof(params));
607 ssid = wpas_get_network_ctx(wpa_s, network_ctx);
608 if (ssid) {
609 wpa_msg(wpa_s, MSG_INFO, PMKSA_CACHE_ADDED MACSTR " %d",
610 MAC2STR(bssid), ssid->id);
611 if ((akmp == WPA_KEY_MGMT_FT_IEEE8021X ||
612 akmp == WPA_KEY_MGMT_FT_IEEE8021X_SHA384) &&
613 !ssid->ft_eap_pmksa_caching) {
614 /* Since we will not be using PMKSA caching for FT-EAP
615 * within wpa_supplicant to avoid known interop issues
616 * with APs, do not add this PMKID to the driver either
617 * so that we won't be hitting those interop issues
618 * with driver-based RSNE generation. */
619 wpa_printf(MSG_DEBUG,
620 "FT: Do not add PMKID entry to the driver since FT-EAP PMKSA caching is not enabled in configuration");
621 return 0;
622 }
623 }
624 if (ssid && fils_cache_id) {
625 params.ssid = ssid->ssid;
626 params.ssid_len = ssid->ssid_len;
627 params.fils_cache_id = fils_cache_id;
628 } else {
629 params.bssid = bssid;
630 }
631
632 params.pmkid = pmkid;
633 params.pmk = pmk;
634 params.pmk_len = pmk_len;
635 params.pmk_lifetime = pmk_lifetime;
636 params.pmk_reauth_threshold = pmk_reauth_threshold;
637
638 return wpa_drv_add_pmkid(wpa_s, ¶ms);
639 }
640
641
wpa_supplicant_remove_pmkid(void * _wpa_s,void * network_ctx,const u8 * bssid,const u8 * pmkid,const u8 * fils_cache_id)642 static int wpa_supplicant_remove_pmkid(void *_wpa_s, void *network_ctx,
643 const u8 *bssid, const u8 *pmkid,
644 const u8 *fils_cache_id)
645 {
646 struct wpa_supplicant *wpa_s = _wpa_s;
647 struct wpa_ssid *ssid;
648 struct wpa_pmkid_params params;
649
650 os_memset(¶ms, 0, sizeof(params));
651 ssid = wpas_get_network_ctx(wpa_s, network_ctx);
652 if (ssid)
653 wpa_msg(wpa_s, MSG_INFO, PMKSA_CACHE_REMOVED MACSTR " %d",
654 MAC2STR(bssid), ssid->id);
655 if (ssid && fils_cache_id) {
656 params.ssid = ssid->ssid;
657 params.ssid_len = ssid->ssid_len;
658 params.fils_cache_id = fils_cache_id;
659 } else {
660 params.bssid = bssid;
661 }
662
663 params.pmkid = pmkid;
664
665 return wpa_drv_remove_pmkid(wpa_s, ¶ms);
666 }
667
668
669 #ifdef CONFIG_IEEE80211R
wpa_supplicant_update_ft_ies(void * ctx,const u8 * md,const u8 * ies,size_t ies_len)670 static int wpa_supplicant_update_ft_ies(void *ctx, const u8 *md,
671 const u8 *ies, size_t ies_len)
672 {
673 struct wpa_supplicant *wpa_s = ctx;
674 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
675 return sme_update_ft_ies(wpa_s, md, ies, ies_len);
676 return wpa_drv_update_ft_ies(wpa_s, md, ies, ies_len);
677 }
678
679
wpa_supplicant_send_ft_action(void * ctx,u8 action,const u8 * target_ap,const u8 * ies,size_t ies_len)680 static int wpa_supplicant_send_ft_action(void *ctx, u8 action,
681 const u8 *target_ap,
682 const u8 *ies, size_t ies_len)
683 {
684 struct wpa_supplicant *wpa_s = ctx;
685 int ret;
686 u8 *data, *pos;
687 size_t data_len;
688
689 if (action != 1) {
690 wpa_printf(MSG_ERROR, "Unsupported send_ft_action action %d",
691 action);
692 return -1;
693 }
694
695 /*
696 * Action frame payload:
697 * Category[1] = 6 (Fast BSS Transition)
698 * Action[1] = 1 (Fast BSS Transition Request)
699 * STA Address
700 * Target AP Address
701 * FT IEs
702 */
703
704 data_len = 2 + 2 * ETH_ALEN + ies_len;
705 data = os_malloc(data_len);
706 if (data == NULL)
707 return -1;
708 pos = data;
709 *pos++ = 0x06; /* FT Action category */
710 *pos++ = action;
711 os_memcpy(pos, wpa_s->own_addr, ETH_ALEN);
712 pos += ETH_ALEN;
713 os_memcpy(pos, target_ap, ETH_ALEN);
714 pos += ETH_ALEN;
715 os_memcpy(pos, ies, ies_len);
716
717 ret = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0,
718 wpa_s->bssid, wpa_s->own_addr, wpa_s->bssid,
719 data, data_len, 0);
720 os_free(data);
721
722 return ret;
723 }
724
725
wpa_supplicant_mark_authenticated(void * ctx,const u8 * target_ap)726 static int wpa_supplicant_mark_authenticated(void *ctx, const u8 *target_ap)
727 {
728 struct wpa_supplicant *wpa_s = ctx;
729 struct wpa_driver_auth_params params;
730 struct wpa_bss *bss;
731
732 bss = wpa_bss_get_bssid(wpa_s, target_ap);
733 if (bss == NULL)
734 return -1;
735
736 os_memset(¶ms, 0, sizeof(params));
737 params.bssid = target_ap;
738 params.freq = bss->freq;
739 params.ssid = bss->ssid;
740 params.ssid_len = bss->ssid_len;
741 params.auth_alg = WPA_AUTH_ALG_FT;
742 params.local_state_change = 1;
743 return wpa_drv_authenticate(wpa_s, ¶ms);
744 }
745 #endif /* CONFIG_IEEE80211R */
746
747
748 #ifdef CONFIG_TDLS
749
wpa_supplicant_tdls_get_capa(void * ctx,int * tdls_supported,int * tdls_ext_setup,int * tdls_chan_switch)750 static int wpa_supplicant_tdls_get_capa(void *ctx, int *tdls_supported,
751 int *tdls_ext_setup,
752 int *tdls_chan_switch)
753 {
754 struct wpa_supplicant *wpa_s = ctx;
755
756 *tdls_supported = 0;
757 *tdls_ext_setup = 0;
758 *tdls_chan_switch = 0;
759
760 if (!wpa_s->drv_capa_known)
761 return -1;
762
763 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)
764 *tdls_supported = 1;
765
766 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP)
767 *tdls_ext_setup = 1;
768
769 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH)
770 *tdls_chan_switch = 1;
771
772 return 0;
773 }
774
775
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,int link_id)776 static int wpa_supplicant_send_tdls_mgmt(void *ctx, const u8 *dst,
777 u8 action_code, u8 dialog_token,
778 u16 status_code, u32 peer_capab,
779 int initiator, const u8 *buf,
780 size_t len, int link_id)
781 {
782 struct wpa_supplicant *wpa_s = ctx;
783 return wpa_drv_send_tdls_mgmt(wpa_s, dst, action_code, dialog_token,
784 status_code, peer_capab, initiator, buf,
785 len, link_id);
786 }
787
788
wpa_supplicant_tdls_oper(void * ctx,int oper,const u8 * peer)789 static int wpa_supplicant_tdls_oper(void *ctx, int oper, const u8 *peer)
790 {
791 struct wpa_supplicant *wpa_s = ctx;
792 return wpa_drv_tdls_oper(wpa_s, oper, peer);
793 }
794
795
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,const struct ieee80211_eht_capabilities * eht_capab,size_t eht_capab_len,int mld_link_id)796 static int wpa_supplicant_tdls_peer_addset(
797 void *ctx, const u8 *peer, int add, u16 aid, u16 capability,
798 const u8 *supp_rates, size_t supp_rates_len,
799 const struct ieee80211_ht_capabilities *ht_capab,
800 const struct ieee80211_vht_capabilities *vht_capab,
801 const struct ieee80211_he_capabilities *he_capab,
802 size_t he_capab_len,
803 const struct ieee80211_he_6ghz_band_cap *he_6ghz_he_capab,
804 u8 qosinfo, int wmm, const u8 *ext_capab, size_t ext_capab_len,
805 const u8 *supp_channels, size_t supp_channels_len,
806 const u8 *supp_oper_classes, size_t supp_oper_classes_len,
807 const struct ieee80211_eht_capabilities *eht_capab,
808 size_t eht_capab_len, int mld_link_id)
809 {
810 struct wpa_supplicant *wpa_s = ctx;
811 struct hostapd_sta_add_params params;
812
813 os_memset(¶ms, 0, sizeof(params));
814
815 params.addr = peer;
816 params.aid = aid;
817 params.capability = capability;
818 params.flags = WPA_STA_TDLS_PEER | WPA_STA_AUTHORIZED;
819
820 /*
821 * Don't rely only on qosinfo for WMM capability. It may be 0 even when
822 * present. Allow the WMM IE to also indicate QoS support.
823 */
824 if (wmm || qosinfo)
825 params.flags |= WPA_STA_WMM;
826
827 params.ht_capabilities = ht_capab;
828 params.vht_capabilities = vht_capab;
829 params.he_capab = he_capab;
830 params.he_capab_len = he_capab_len;
831 params.he_6ghz_capab = he_6ghz_he_capab;
832 params.qosinfo = qosinfo;
833 params.listen_interval = 0;
834 params.supp_rates = supp_rates;
835 params.supp_rates_len = supp_rates_len;
836 params.set = !add;
837 params.ext_capab = ext_capab;
838 params.ext_capab_len = ext_capab_len;
839 params.supp_channels = supp_channels;
840 params.supp_channels_len = supp_channels_len;
841 params.supp_oper_classes = supp_oper_classes;
842 params.supp_oper_classes_len = supp_oper_classes_len;
843 params.eht_capab = eht_capab;
844 params.eht_capab_len = eht_capab_len;
845 params.mld_link_id = mld_link_id;
846
847 return wpa_drv_sta_add(wpa_s, ¶ms);
848 }
849
850
wpa_supplicant_tdls_enable_channel_switch(void * ctx,const u8 * addr,u8 oper_class,const struct hostapd_freq_params * params)851 static int wpa_supplicant_tdls_enable_channel_switch(
852 void *ctx, const u8 *addr, u8 oper_class,
853 const struct hostapd_freq_params *params)
854 {
855 struct wpa_supplicant *wpa_s = ctx;
856
857 return wpa_drv_tdls_enable_channel_switch(wpa_s, addr, oper_class,
858 params);
859 }
860
861
wpa_supplicant_tdls_disable_channel_switch(void * ctx,const u8 * addr)862 static int wpa_supplicant_tdls_disable_channel_switch(void *ctx, const u8 *addr)
863 {
864 struct wpa_supplicant *wpa_s = ctx;
865
866 return wpa_drv_tdls_disable_channel_switch(wpa_s, addr);
867 }
868
869 #endif /* CONFIG_TDLS */
870
871 #endif /* CONFIG_NO_WPA */
872
873
wpa_supplicant_ctrl_req_from_string(const char * field)874 enum wpa_ctrl_req_type wpa_supplicant_ctrl_req_from_string(const char *field)
875 {
876 if (os_strcmp(field, "IDENTITY") == 0)
877 return WPA_CTRL_REQ_EAP_IDENTITY;
878 else if (os_strcmp(field, "PASSWORD") == 0)
879 return WPA_CTRL_REQ_EAP_PASSWORD;
880 else if (os_strcmp(field, "NEW_PASSWORD") == 0)
881 return WPA_CTRL_REQ_EAP_NEW_PASSWORD;
882 else if (os_strcmp(field, "PIN") == 0)
883 return WPA_CTRL_REQ_EAP_PIN;
884 else if (os_strcmp(field, "OTP") == 0)
885 return WPA_CTRL_REQ_EAP_OTP;
886 else if (os_strcmp(field, "PASSPHRASE") == 0)
887 return WPA_CTRL_REQ_EAP_PASSPHRASE;
888 else if (os_strcmp(field, "SIM") == 0)
889 return WPA_CTRL_REQ_SIM;
890 else if (os_strcmp(field, "PSK_PASSPHRASE") == 0)
891 return WPA_CTRL_REQ_PSK_PASSPHRASE;
892 else if (os_strcmp(field, "EXT_CERT_CHECK") == 0)
893 return WPA_CTRL_REQ_EXT_CERT_CHECK;
894 return WPA_CTRL_REQ_UNKNOWN;
895 }
896
897
wpa_supplicant_ctrl_req_to_string(enum wpa_ctrl_req_type field,const char * default_txt,const char ** txt)898 const char * wpa_supplicant_ctrl_req_to_string(enum wpa_ctrl_req_type field,
899 const char *default_txt,
900 const char **txt)
901 {
902 const char *ret = NULL;
903
904 *txt = default_txt;
905
906 switch (field) {
907 case WPA_CTRL_REQ_EAP_IDENTITY:
908 *txt = "Identity";
909 ret = "IDENTITY";
910 break;
911 case WPA_CTRL_REQ_EAP_PASSWORD:
912 *txt = "Password";
913 ret = "PASSWORD";
914 break;
915 case WPA_CTRL_REQ_EAP_NEW_PASSWORD:
916 *txt = "New Password";
917 ret = "NEW_PASSWORD";
918 break;
919 case WPA_CTRL_REQ_EAP_PIN:
920 *txt = "PIN";
921 ret = "PIN";
922 break;
923 case WPA_CTRL_REQ_EAP_OTP:
924 ret = "OTP";
925 break;
926 case WPA_CTRL_REQ_EAP_PASSPHRASE:
927 *txt = "Private key passphrase";
928 ret = "PASSPHRASE";
929 break;
930 case WPA_CTRL_REQ_SIM:
931 ret = "SIM";
932 break;
933 case WPA_CTRL_REQ_PSK_PASSPHRASE:
934 *txt = "PSK or passphrase";
935 ret = "PSK_PASSPHRASE";
936 break;
937 case WPA_CTRL_REQ_EXT_CERT_CHECK:
938 *txt = "External server certificate validation";
939 ret = "EXT_CERT_CHECK";
940 break;
941 default:
942 break;
943 }
944
945 /* txt needs to be something */
946 if (*txt == NULL) {
947 wpa_printf(MSG_WARNING, "No message for request %d", field);
948 ret = NULL;
949 }
950
951 return ret;
952 }
953
954
wpas_send_ctrl_req(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,const char * field_name,const char * txt)955 void wpas_send_ctrl_req(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
956 const char *field_name, const char *txt)
957 {
958 wpa_msg(wpa_s, MSG_INFO, WPA_CTRL_REQ "%s-%d:%s needed for SSID %s",
959 field_name, ssid->id, txt,
960 wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
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 wpas_notify_network_request(wpa_s, ssid, field, default_txt);
980
981 field_name = wpa_supplicant_ctrl_req_to_string(field, default_txt,
982 &txt);
983 if (field_name == NULL) {
984 wpa_printf(MSG_WARNING, "Unhandled EAP param %d needed",
985 field);
986 return;
987 }
988
989 wpas_notify_eap_status(wpa_s, "eap parameter needed", field_name);
990
991 wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
992 }
993 #else /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
994 #define wpa_supplicant_eap_param_needed NULL
995 #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
996
997
998 #ifdef CONFIG_EAP_PROXY
999
wpa_supplicant_eap_proxy_cb(void * ctx)1000 static void wpa_supplicant_eap_proxy_cb(void *ctx)
1001 {
1002 struct wpa_supplicant *wpa_s = ctx;
1003 size_t len;
1004
1005 wpa_s->mnc_len = eapol_sm_get_eap_proxy_imsi(wpa_s->eapol, -1,
1006 wpa_s->imsi, &len);
1007 if (wpa_s->mnc_len > 0) {
1008 wpa_s->imsi[len] = '\0';
1009 wpa_printf(MSG_DEBUG, "eap_proxy: IMSI %s (MNC length %d)",
1010 wpa_s->imsi, wpa_s->mnc_len);
1011 } else {
1012 wpa_printf(MSG_DEBUG, "eap_proxy: IMSI not available");
1013 }
1014 }
1015
1016
wpa_sm_sim_state_error_handler(struct wpa_supplicant * wpa_s)1017 static void wpa_sm_sim_state_error_handler(struct wpa_supplicant *wpa_s)
1018 {
1019 int i;
1020 struct wpa_ssid *ssid;
1021 const struct eap_method_type *eap_methods;
1022
1023 if (!wpa_s->conf)
1024 return;
1025
1026 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1027 eap_methods = ssid->eap.eap_methods;
1028 if (!eap_methods)
1029 continue;
1030
1031 for (i = 0; eap_methods[i].method != EAP_TYPE_NONE; i++) {
1032 if (eap_methods[i].vendor == EAP_VENDOR_IETF &&
1033 (eap_methods[i].method == EAP_TYPE_SIM ||
1034 eap_methods[i].method == EAP_TYPE_AKA ||
1035 eap_methods[i].method == EAP_TYPE_AKA_PRIME)) {
1036 wpa_sm_pmksa_cache_flush(wpa_s->wpa, ssid);
1037 break;
1038 }
1039 }
1040 }
1041 }
1042
1043
1044 static void
wpa_supplicant_eap_proxy_notify_sim_status(void * ctx,enum eap_proxy_sim_state sim_state)1045 wpa_supplicant_eap_proxy_notify_sim_status(void *ctx,
1046 enum eap_proxy_sim_state sim_state)
1047 {
1048 struct wpa_supplicant *wpa_s = ctx;
1049
1050 wpa_printf(MSG_DEBUG, "eap_proxy: SIM card status %u", sim_state);
1051 switch (sim_state) {
1052 case SIM_STATE_ERROR:
1053 wpa_sm_sim_state_error_handler(wpa_s);
1054 break;
1055 default:
1056 wpa_printf(MSG_DEBUG, "eap_proxy: SIM card status unknown");
1057 break;
1058 }
1059 }
1060
1061 #endif /* CONFIG_EAP_PROXY */
1062
1063
wpa_supplicant_port_cb(void * ctx,int authorized)1064 static void wpa_supplicant_port_cb(void *ctx, int authorized)
1065 {
1066 struct wpa_supplicant *wpa_s = ctx;
1067 #ifdef CONFIG_AP
1068 if (wpa_s->ap_iface) {
1069 wpa_printf(MSG_DEBUG, "AP mode active - skip EAPOL Supplicant "
1070 "port status: %s",
1071 authorized ? "Authorized" : "Unauthorized");
1072 return;
1073 }
1074 #endif /* CONFIG_AP */
1075 wpa_printf(MSG_DEBUG, "EAPOL: Supplicant port status: %s",
1076 authorized ? "Authorized" : "Unauthorized");
1077 wpa_drv_set_supp_port(wpa_s, authorized);
1078 }
1079
1080
wpa_supplicant_cert_cb(void * ctx,struct tls_cert_data * cert,const char * cert_hash)1081 static void wpa_supplicant_cert_cb(void *ctx, struct tls_cert_data *cert,
1082 const char *cert_hash)
1083 {
1084 struct wpa_supplicant *wpa_s = ctx;
1085
1086 wpas_notify_certification(wpa_s, cert, cert_hash);
1087 }
1088
1089
wpa_supplicant_status_cb(void * ctx,const char * status,const char * parameter)1090 static void wpa_supplicant_status_cb(void *ctx, const char *status,
1091 const char *parameter)
1092 {
1093 struct wpa_supplicant *wpa_s = ctx;
1094
1095 wpas_notify_eap_status(wpa_s, status, parameter);
1096 }
1097
1098
wpa_supplicant_eap_error_cb(void * ctx,int error_code)1099 static void wpa_supplicant_eap_error_cb(void *ctx, int error_code)
1100 {
1101 struct wpa_supplicant *wpa_s = ctx;
1102
1103 wpas_notify_eap_error(wpa_s, error_code);
1104 }
1105
1106
wpa_supplicant_eap_auth_start_cb(void * ctx)1107 static int wpa_supplicant_eap_auth_start_cb(void *ctx)
1108 {
1109 struct wpa_supplicant *wpa_s = ctx;
1110
1111 if (!wpa_s->new_connection && wpa_s->deny_ptk0_rekey &&
1112 !wpa_sm_ext_key_id_active(wpa_s->wpa)) {
1113 wpa_msg(wpa_s, MSG_INFO,
1114 "WPA: PTK0 rekey not allowed, reconnecting");
1115 wpa_supplicant_reconnect(wpa_s);
1116 return -1;
1117 }
1118 return 0;
1119 }
1120
1121
wpa_supplicant_set_anon_id(void * ctx,const u8 * id,size_t len)1122 static void wpa_supplicant_set_anon_id(void *ctx, const u8 *id, size_t len)
1123 {
1124 struct wpa_supplicant *wpa_s = ctx;
1125 char *str;
1126 int res;
1127
1128 wpa_hexdump_ascii(MSG_DEBUG, "EAP method updated anonymous_identity",
1129 id, len);
1130
1131 if (wpa_s->current_ssid == NULL)
1132 return;
1133
1134 if (id == NULL) {
1135 if (wpa_config_set(wpa_s->current_ssid, "anonymous_identity",
1136 "NULL", 0) < 0)
1137 return;
1138 } else {
1139 str = os_malloc(len * 2 + 1);
1140 if (str == NULL)
1141 return;
1142 wpa_snprintf_hex(str, len * 2 + 1, id, len);
1143 res = wpa_config_set(wpa_s->current_ssid, "anonymous_identity",
1144 str, 0);
1145 os_free(str);
1146 if (res < 0)
1147 return;
1148 }
1149
1150 if (wpa_s->conf->update_config) {
1151 res = wpa_config_write(wpa_s->confname, wpa_s->conf);
1152 if (res) {
1153 wpa_printf(MSG_DEBUG, "Failed to update config after "
1154 "anonymous_id update");
1155 }
1156 }
1157 }
1158
1159
wpas_encryption_required(void * ctx)1160 static bool wpas_encryption_required(void *ctx)
1161 {
1162 struct wpa_supplicant *wpa_s = ctx;
1163
1164 return wpa_s->wpa &&
1165 wpa_sm_has_ptk_installed(wpa_s->wpa) &&
1166 wpa_sm_pmf_enabled(wpa_s->wpa);
1167 }
1168
1169 #endif /* IEEE8021X_EAPOL */
1170
1171
wpa_supplicant_init_eapol(struct wpa_supplicant * wpa_s)1172 int wpa_supplicant_init_eapol(struct wpa_supplicant *wpa_s)
1173 {
1174 #ifdef IEEE8021X_EAPOL
1175 struct eapol_ctx *ctx;
1176 ctx = os_zalloc(sizeof(*ctx));
1177 if (ctx == NULL) {
1178 wpa_printf(MSG_ERROR, "Failed to allocate EAPOL context.");
1179 return -1;
1180 }
1181
1182 ctx->ctx = wpa_s;
1183 ctx->msg_ctx = wpa_s;
1184 ctx->eapol_send_ctx = wpa_s;
1185 ctx->preauth = 0;
1186 ctx->eapol_done_cb = wpa_supplicant_notify_eapol_done;
1187 ctx->eapol_send = wpa_supplicant_eapol_send;
1188 #ifdef CONFIG_WEP
1189 ctx->set_wep_key = wpa_eapol_set_wep_key;
1190 #endif /* CONFIG_WEP */
1191 #ifndef CONFIG_NO_CONFIG_BLOBS
1192 ctx->set_config_blob = wpa_supplicant_set_config_blob;
1193 ctx->get_config_blob = wpa_supplicant_get_config_blob;
1194 #endif /* CONFIG_NO_CONFIG_BLOBS */
1195 ctx->aborted_cached = wpa_supplicant_aborted_cached;
1196 #ifndef CONFIG_OPENSC_ENGINE_PATH
1197 ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path;
1198 #endif /* CONFIG_OPENSC_ENGINE_PATH */
1199 #ifndef CONFIG_PKCS11_ENGINE_PATH
1200 ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path;
1201 #endif /* CONFIG_PKCS11_ENGINE_PATH */
1202 #ifndef CONFIG_PKCS11_MODULE_PATH
1203 ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path;
1204 #endif /* CONFIG_PKCS11_MODULE_PATH */
1205 ctx->openssl_ciphers = wpa_s->conf->openssl_ciphers;
1206 ctx->wps = wpa_s->wps;
1207 ctx->eap_param_needed = wpa_supplicant_eap_param_needed;
1208 #ifdef CONFIG_EAP_PROXY
1209 ctx->eap_proxy_cb = wpa_supplicant_eap_proxy_cb;
1210 ctx->eap_proxy_notify_sim_status =
1211 wpa_supplicant_eap_proxy_notify_sim_status;
1212 #endif /* CONFIG_EAP_PROXY */
1213 ctx->port_cb = wpa_supplicant_port_cb;
1214 ctx->cb = wpa_supplicant_eapol_cb;
1215 ctx->cert_cb = wpa_supplicant_cert_cb;
1216 ctx->cert_in_cb = wpa_s->conf->cert_in_cb;
1217 ctx->status_cb = wpa_supplicant_status_cb;
1218 ctx->eap_error_cb = wpa_supplicant_eap_error_cb;
1219 ctx->confirm_auth_cb = wpa_supplicant_eap_auth_start_cb;
1220 ctx->set_anon_id = wpa_supplicant_set_anon_id;
1221 ctx->encryption_required = wpas_encryption_required;
1222 ctx->cb_ctx = wpa_s;
1223 wpa_s->eapol = eapol_sm_init(ctx);
1224 if (wpa_s->eapol == NULL) {
1225 os_free(ctx);
1226 wpa_printf(MSG_ERROR, "Failed to initialize EAPOL state "
1227 "machines.");
1228 return -1;
1229 }
1230 #endif /* IEEE8021X_EAPOL */
1231
1232 return 0;
1233 }
1234
1235
1236 #ifndef CONFIG_NO_WPA
1237
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)1238 static void wpa_supplicant_set_rekey_offload(void *ctx,
1239 const u8 *kek, size_t kek_len,
1240 const u8 *kck, size_t kck_len,
1241 const u8 *replay_ctr)
1242 {
1243 struct wpa_supplicant *wpa_s = ctx;
1244
1245 wpa_drv_set_rekey_info(wpa_s, kek, kek_len, kck, kck_len, replay_ctr);
1246 }
1247
1248
wpa_supplicant_key_mgmt_set_pmk(void * ctx,const u8 * pmk,size_t pmk_len)1249 static int wpa_supplicant_key_mgmt_set_pmk(void *ctx, const u8 *pmk,
1250 size_t pmk_len)
1251 {
1252 struct wpa_supplicant *wpa_s = ctx;
1253
1254 if (wpa_s->conf->key_mgmt_offload &&
1255 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD))
1256 return wpa_drv_set_key(wpa_s, -1, 0, NULL, 0, 0,
1257 NULL, 0, pmk, pmk_len, KEY_FLAG_PMK);
1258 else
1259 return 0;
1260 }
1261
1262
wpa_supplicant_fils_hlp_rx(void * ctx,const u8 * dst,const u8 * src,const u8 * pkt,size_t pkt_len)1263 static void wpa_supplicant_fils_hlp_rx(void *ctx, const u8 *dst, const u8 *src,
1264 const u8 *pkt, size_t pkt_len)
1265 {
1266 struct wpa_supplicant *wpa_s = ctx;
1267 char *hex;
1268 size_t hexlen;
1269
1270 hexlen = pkt_len * 2 + 1;
1271 hex = os_malloc(hexlen);
1272 if (!hex)
1273 return;
1274 wpa_snprintf_hex(hex, hexlen, pkt, pkt_len);
1275 wpa_msg(wpa_s, MSG_INFO, FILS_HLP_RX "dst=" MACSTR " src=" MACSTR
1276 " frame=%s", MAC2STR(dst), MAC2STR(src), hex);
1277 os_free(hex);
1278 }
1279
1280
wpa_supplicant_channel_info(void * _wpa_s,struct wpa_channel_info * ci)1281 static int wpa_supplicant_channel_info(void *_wpa_s,
1282 struct wpa_channel_info *ci)
1283 {
1284 struct wpa_supplicant *wpa_s = _wpa_s;
1285
1286 return wpa_drv_channel_info(wpa_s, ci);
1287 }
1288
1289
disable_wpa_wpa2(struct wpa_ssid * ssid)1290 static void disable_wpa_wpa2(struct wpa_ssid *ssid)
1291 {
1292 ssid->proto &= ~WPA_PROTO_WPA;
1293 ssid->proto |= WPA_PROTO_RSN;
1294 ssid->key_mgmt &= ~(WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_FT_PSK |
1295 WPA_KEY_MGMT_PSK_SHA256);
1296 ssid->group_cipher &= ~WPA_CIPHER_TKIP;
1297 if (!(ssid->group_cipher & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1298 WPA_CIPHER_GCMP_256 | WPA_CIPHER_CCMP_256)))
1299 ssid->group_cipher |= WPA_CIPHER_CCMP;
1300 ssid->ieee80211w = MGMT_FRAME_PROTECTION_REQUIRED;
1301 }
1302
1303
wpas_transition_disable(struct wpa_supplicant * wpa_s,u8 bitmap)1304 void wpas_transition_disable(struct wpa_supplicant *wpa_s, u8 bitmap)
1305 {
1306 struct wpa_ssid *ssid;
1307 int changed = 0;
1308
1309 wpa_msg(wpa_s, MSG_INFO, TRANSITION_DISABLE "%02x", bitmap);
1310
1311 ssid = wpa_s->current_ssid;
1312 if (!ssid)
1313 return;
1314
1315 #ifdef CONFIG_SAE
1316 if ((bitmap & TRANSITION_DISABLE_WPA3_PERSONAL) &&
1317 wpa_key_mgmt_sae(wpa_s->key_mgmt) &&
1318 wpa_key_mgmt_sae(ssid->key_mgmt) &&
1319 (ssid->ieee80211w != MGMT_FRAME_PROTECTION_REQUIRED ||
1320 (ssid->group_cipher & WPA_CIPHER_TKIP))) {
1321 wpa_printf(MSG_DEBUG,
1322 "WPA3-Personal transition mode disabled based on AP notification");
1323 disable_wpa_wpa2(ssid);
1324 changed = 1;
1325 }
1326
1327 if ((bitmap & TRANSITION_DISABLE_SAE_PK) &&
1328 wpa_key_mgmt_sae(wpa_s->key_mgmt) &&
1329 #ifdef CONFIG_SME
1330 wpa_s->sme.sae.state == SAE_ACCEPTED &&
1331 wpa_s->sme.sae.pk &&
1332 #endif /* CONFIG_SME */
1333 wpa_key_mgmt_sae(ssid->key_mgmt) &&
1334 (ssid->sae_pk != SAE_PK_MODE_ONLY ||
1335 ssid->ieee80211w != MGMT_FRAME_PROTECTION_REQUIRED ||
1336 (ssid->group_cipher & WPA_CIPHER_TKIP))) {
1337 wpa_printf(MSG_DEBUG,
1338 "SAE-PK: SAE authentication without PK disabled based on AP notification");
1339 disable_wpa_wpa2(ssid);
1340 ssid->sae_pk = SAE_PK_MODE_ONLY;
1341 changed = 1;
1342 }
1343 #endif /* CONFIG_SAE */
1344
1345 if ((bitmap & TRANSITION_DISABLE_WPA3_ENTERPRISE) &&
1346 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) &&
1347 (ssid->key_mgmt & (WPA_KEY_MGMT_IEEE8021X |
1348 WPA_KEY_MGMT_FT_IEEE8021X |
1349 WPA_KEY_MGMT_IEEE8021X_SHA256 |
1350 WPA_KEY_MGMT_IEEE8021X_SHA384)) &&
1351 (ssid->ieee80211w != MGMT_FRAME_PROTECTION_REQUIRED ||
1352 (ssid->group_cipher & WPA_CIPHER_TKIP))) {
1353 disable_wpa_wpa2(ssid);
1354 changed = 1;
1355 }
1356
1357 if ((bitmap & TRANSITION_DISABLE_ENHANCED_OPEN) &&
1358 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE &&
1359 (ssid->key_mgmt & WPA_KEY_MGMT_OWE) &&
1360 !ssid->owe_only) {
1361 ssid->owe_only = 1;
1362 changed = 1;
1363 }
1364
1365 if (!changed)
1366 return;
1367
1368 #ifndef CONFIG_NO_CONFIG_WRITE
1369 if (wpa_s->conf->update_config &&
1370 wpa_config_write(wpa_s->confname, wpa_s->conf))
1371 wpa_printf(MSG_DEBUG, "Failed to update configuration");
1372 #endif /* CONFIG_NO_CONFIG_WRITE */
1373 }
1374
1375
wpa_supplicant_transition_disable(void * _wpa_s,u8 bitmap)1376 static void wpa_supplicant_transition_disable(void *_wpa_s, u8 bitmap)
1377 {
1378 struct wpa_supplicant *wpa_s = _wpa_s;
1379 wpas_transition_disable(wpa_s, bitmap);
1380 }
1381
1382
wpa_supplicant_store_ptk(void * ctx,const u8 * addr,int cipher,u32 life_time,const struct wpa_ptk * ptk)1383 static void wpa_supplicant_store_ptk(void *ctx, const u8 *addr, int cipher,
1384 u32 life_time, const struct wpa_ptk *ptk)
1385 {
1386 struct wpa_supplicant *wpa_s = ctx;
1387
1388 ptksa_cache_add(wpa_s->ptksa, wpa_s->own_addr, addr, cipher, life_time,
1389 ptk, NULL, NULL, 0);
1390 }
1391
1392 #endif /* CONFIG_NO_WPA */
1393
1394
1395 #ifdef CONFIG_PASN
wpa_supplicant_set_ltf_keyseed(void * _wpa_s,const u8 * own_addr,const u8 * peer_addr,size_t ltf_keyseed_len,const u8 * ltf_keyseed)1396 static int wpa_supplicant_set_ltf_keyseed(void *_wpa_s, const u8 *own_addr,
1397 const u8 *peer_addr,
1398 size_t ltf_keyseed_len,
1399 const u8 *ltf_keyseed)
1400 {
1401 struct wpa_supplicant *wpa_s = _wpa_s;
1402
1403 return wpa_drv_set_secure_ranging_ctx(wpa_s, own_addr, peer_addr, 0, 0,
1404 NULL, ltf_keyseed_len,
1405 ltf_keyseed, 0);
1406 }
1407 #endif /* CONFIG_PASN */
1408
1409
1410 static void
wpa_supplicant_notify_pmksa_cache_entry(void * _wpa_s,struct rsn_pmksa_cache_entry * entry)1411 wpa_supplicant_notify_pmksa_cache_entry(void *_wpa_s,
1412 struct rsn_pmksa_cache_entry *entry)
1413 {
1414 struct wpa_supplicant *wpa_s = _wpa_s;
1415
1416 wpas_notify_pmk_cache_added(wpa_s, entry);
1417 }
1418
1419
wpa_supplicant_ssid_verified(void * _wpa_s)1420 static void wpa_supplicant_ssid_verified(void *_wpa_s)
1421 {
1422 struct wpa_supplicant *wpa_s = _wpa_s;
1423
1424 wpa_s->ssid_verified = true;
1425 wpa_msg(wpa_s, MSG_INFO, "RSN: SSID matched expected value");
1426 }
1427
1428
wpa_supplicant_init_wpa(struct wpa_supplicant * wpa_s)1429 int wpa_supplicant_init_wpa(struct wpa_supplicant *wpa_s)
1430 {
1431 #ifndef CONFIG_NO_WPA
1432 struct wpa_sm_ctx *ctx;
1433
1434 wpa_s->ptksa = ptksa_cache_init();
1435 if (!wpa_s->ptksa) {
1436 wpa_printf(MSG_ERROR, "Failed to allocate PTKSA");
1437 return -1;
1438 }
1439
1440 ctx = os_zalloc(sizeof(*ctx));
1441 if (ctx == NULL) {
1442 wpa_printf(MSG_ERROR, "Failed to allocate WPA context.");
1443
1444 ptksa_cache_deinit(wpa_s->ptksa);
1445 wpa_s->ptksa = NULL;
1446
1447 return -1;
1448 }
1449
1450 ctx->ctx = wpa_s;
1451 ctx->msg_ctx = wpa_s;
1452 ctx->set_state = _wpa_supplicant_set_state;
1453 ctx->get_state = _wpa_supplicant_get_state;
1454 ctx->deauthenticate = _wpa_supplicant_deauthenticate;
1455 ctx->reconnect = _wpa_supplicant_reconnect;
1456 ctx->set_key = wpa_supplicant_set_key;
1457 ctx->get_network_ctx = wpa_supplicant_get_network_ctx;
1458 ctx->get_bssid = wpa_supplicant_get_bssid;
1459 ctx->ether_send = _wpa_ether_send;
1460 ctx->get_beacon_ie = wpa_supplicant_get_beacon_ie;
1461 ctx->alloc_eapol = _wpa_alloc_eapol;
1462 ctx->cancel_auth_timeout = _wpa_supplicant_cancel_auth_timeout;
1463 ctx->add_pmkid = wpa_supplicant_add_pmkid;
1464 ctx->remove_pmkid = wpa_supplicant_remove_pmkid;
1465 #ifndef CONFIG_NO_CONFIG_BLOBS
1466 ctx->set_config_blob = wpa_supplicant_set_config_blob;
1467 ctx->get_config_blob = wpa_supplicant_get_config_blob;
1468 #endif /* CONFIG_NO_CONFIG_BLOBS */
1469 ctx->mlme_setprotection = wpa_supplicant_mlme_setprotection;
1470 #ifdef CONFIG_IEEE80211R
1471 ctx->update_ft_ies = wpa_supplicant_update_ft_ies;
1472 ctx->send_ft_action = wpa_supplicant_send_ft_action;
1473 ctx->mark_authenticated = wpa_supplicant_mark_authenticated;
1474 #endif /* CONFIG_IEEE80211R */
1475 #ifdef CONFIG_TDLS
1476 ctx->tdls_get_capa = wpa_supplicant_tdls_get_capa;
1477 ctx->send_tdls_mgmt = wpa_supplicant_send_tdls_mgmt;
1478 ctx->tdls_oper = wpa_supplicant_tdls_oper;
1479 ctx->tdls_peer_addset = wpa_supplicant_tdls_peer_addset;
1480 ctx->tdls_enable_channel_switch =
1481 wpa_supplicant_tdls_enable_channel_switch;
1482 ctx->tdls_disable_channel_switch =
1483 wpa_supplicant_tdls_disable_channel_switch;
1484 #endif /* CONFIG_TDLS */
1485 ctx->set_rekey_offload = wpa_supplicant_set_rekey_offload;
1486 ctx->key_mgmt_set_pmk = wpa_supplicant_key_mgmt_set_pmk;
1487 ctx->fils_hlp_rx = wpa_supplicant_fils_hlp_rx;
1488 ctx->channel_info = wpa_supplicant_channel_info;
1489 ctx->transition_disable = wpa_supplicant_transition_disable;
1490 ctx->store_ptk = wpa_supplicant_store_ptk;
1491 #ifdef CONFIG_PASN
1492 ctx->set_ltf_keyseed = wpa_supplicant_set_ltf_keyseed;
1493 #endif /* CONFIG_PASN */
1494 ctx->notify_pmksa_cache_entry = wpa_supplicant_notify_pmksa_cache_entry;
1495 ctx->ssid_verified = wpa_supplicant_ssid_verified;
1496
1497 wpa_s->wpa = wpa_sm_init(ctx);
1498 if (wpa_s->wpa == NULL) {
1499 wpa_printf(MSG_ERROR,
1500 "Failed to initialize WPA state machine");
1501 os_free(ctx);
1502 ptksa_cache_deinit(wpa_s->ptksa);
1503 wpa_s->ptksa = NULL;
1504 return -1;
1505 }
1506 #endif /* CONFIG_NO_WPA */
1507
1508 return 0;
1509 }
1510
1511
wpa_supplicant_rsn_supp_set_config(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid)1512 void wpa_supplicant_rsn_supp_set_config(struct wpa_supplicant *wpa_s,
1513 struct wpa_ssid *ssid)
1514 {
1515 struct rsn_supp_config conf;
1516 if (ssid) {
1517 os_memset(&conf, 0, sizeof(conf));
1518 conf.network_ctx = ssid;
1519 conf.allowed_pairwise_cipher = ssid->pairwise_cipher;
1520 #ifdef IEEE8021X_EAPOL
1521 conf.proactive_key_caching = ssid->proactive_key_caching < 0 ?
1522 wpa_s->conf->okc : ssid->proactive_key_caching;
1523 conf.eap_workaround = ssid->eap_workaround;
1524 conf.eap_conf_ctx = &ssid->eap;
1525 #endif /* IEEE8021X_EAPOL */
1526 conf.ssid = ssid->ssid;
1527 conf.ssid_len = ssid->ssid_len;
1528 conf.wpa_ptk_rekey = ssid->wpa_ptk_rekey;
1529 conf.wpa_deny_ptk0_rekey = ssid->wpa_deny_ptk0_rekey;
1530 conf.owe_ptk_workaround = ssid->owe_ptk_workaround;
1531 #ifdef CONFIG_P2P
1532 if (ssid->p2p_group && wpa_s->current_bss &&
1533 !wpa_s->p2p_disable_ip_addr_req) {
1534 struct wpabuf *p2p;
1535 p2p = wpa_bss_get_vendor_ie_multi(wpa_s->current_bss,
1536 P2P_IE_VENDOR_TYPE);
1537 if (p2p) {
1538 u8 group_capab;
1539 group_capab = p2p_get_group_capab(p2p);
1540 if (group_capab &
1541 P2P_GROUP_CAPAB_IP_ADDR_ALLOCATION)
1542 conf.p2p = 1;
1543 wpabuf_free(p2p);
1544 }
1545 }
1546 #endif /* CONFIG_P2P */
1547 conf.wpa_rsc_relaxation = wpa_s->conf->wpa_rsc_relaxation;
1548 #ifdef CONFIG_FILS
1549 if (wpa_key_mgmt_fils(wpa_s->key_mgmt))
1550 conf.fils_cache_id =
1551 wpa_bss_get_fils_cache_id(wpa_s->current_bss);
1552 #endif /* CONFIG_FILS */
1553 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_BEACON_PROTECTION) ||
1554 (wpa_s->drv_flags2 &
1555 WPA_DRIVER_FLAGS2_BEACON_PROTECTION_CLIENT))
1556 conf.beacon_prot = ssid->beacon_prot;
1557
1558 #ifdef CONFIG_PASN
1559 #ifdef CONFIG_TESTING_OPTIONS
1560 conf.force_kdk_derivation = wpa_s->conf->force_kdk_derivation;
1561 #endif /* CONFIG_TESTING_OPTIONS */
1562 #endif /* CONFIG_PASN */
1563 }
1564 wpa_sm_set_config(wpa_s->wpa, ssid ? &conf : NULL);
1565 }
1566