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