]>
Commit | Line | Data |
---|---|---|
1 | /* | |
2 | * WPA Supplicant - Driver event processing | |
3 | * Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi> | |
4 | * | |
5 | * This software may be distributed under the terms of the BSD license. | |
6 | * See README for more details. | |
7 | */ | |
8 | ||
9 | #include "includes.h" | |
10 | ||
11 | #include "common.h" | |
12 | #include "eapol_supp/eapol_supp_sm.h" | |
13 | #include "rsn_supp/wpa.h" | |
14 | #include "eloop.h" | |
15 | #include "config.h" | |
16 | #include "l2_packet/l2_packet.h" | |
17 | #include "wpa_supplicant_i.h" | |
18 | #include "driver_i.h" | |
19 | #include "pcsc_funcs.h" | |
20 | #include "rsn_supp/preauth.h" | |
21 | #include "rsn_supp/pmksa_cache.h" | |
22 | #include "common/wpa_ctrl.h" | |
23 | #include "eap_peer/eap.h" | |
24 | #include "ap/hostapd.h" | |
25 | #include "p2p/p2p.h" | |
26 | #include "fst/fst.h" | |
27 | #include "wnm_sta.h" | |
28 | #include "notify.h" | |
29 | #include "common/ieee802_11_defs.h" | |
30 | #include "common/ieee802_11_common.h" | |
31 | #include "crypto/random.h" | |
32 | #include "blacklist.h" | |
33 | #include "wpas_glue.h" | |
34 | #include "wps_supplicant.h" | |
35 | #include "ibss_rsn.h" | |
36 | #include "sme.h" | |
37 | #include "gas_query.h" | |
38 | #include "p2p_supplicant.h" | |
39 | #include "bgscan.h" | |
40 | #include "autoscan.h" | |
41 | #include "ap.h" | |
42 | #include "bss.h" | |
43 | #include "scan.h" | |
44 | #include "offchannel.h" | |
45 | #include "interworking.h" | |
46 | #include "mesh.h" | |
47 | #include "mesh_mpm.h" | |
48 | #include "wmm_ac.h" | |
49 | ||
50 | ||
51 | #ifndef CONFIG_NO_SCAN_PROCESSING | |
52 | static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s, | |
53 | int new_scan, int own_request); | |
54 | #endif /* CONFIG_NO_SCAN_PROCESSING */ | |
55 | ||
56 | ||
57 | static int wpas_temp_disabled(struct wpa_supplicant *wpa_s, | |
58 | struct wpa_ssid *ssid) | |
59 | { | |
60 | struct os_reltime now; | |
61 | ||
62 | if (ssid == NULL || ssid->disabled_until.sec == 0) | |
63 | return 0; | |
64 | ||
65 | os_get_reltime(&now); | |
66 | if (ssid->disabled_until.sec > now.sec) | |
67 | return ssid->disabled_until.sec - now.sec; | |
68 | ||
69 | wpas_clear_temp_disabled(wpa_s, ssid, 0); | |
70 | ||
71 | return 0; | |
72 | } | |
73 | ||
74 | ||
75 | #ifndef CONFIG_NO_SCAN_PROCESSING | |
76 | /** | |
77 | * wpas_reenabled_network_time - Time until first network is re-enabled | |
78 | * @wpa_s: Pointer to wpa_supplicant data | |
79 | * Returns: If all enabled networks are temporarily disabled, returns the time | |
80 | * (in sec) until the first network is re-enabled. Otherwise returns 0. | |
81 | * | |
82 | * This function is used in case all enabled networks are temporarily disabled, | |
83 | * in which case it returns the time (in sec) that the first network will be | |
84 | * re-enabled. The function assumes that at least one network is enabled. | |
85 | */ | |
86 | static int wpas_reenabled_network_time(struct wpa_supplicant *wpa_s) | |
87 | { | |
88 | struct wpa_ssid *ssid; | |
89 | int disabled_for, res = 0; | |
90 | ||
91 | #ifdef CONFIG_INTERWORKING | |
92 | if (wpa_s->conf->auto_interworking && wpa_s->conf->interworking && | |
93 | wpa_s->conf->cred) | |
94 | return 0; | |
95 | #endif /* CONFIG_INTERWORKING */ | |
96 | ||
97 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { | |
98 | if (ssid->disabled) | |
99 | continue; | |
100 | ||
101 | disabled_for = wpas_temp_disabled(wpa_s, ssid); | |
102 | if (!disabled_for) | |
103 | return 0; | |
104 | ||
105 | if (!res || disabled_for < res) | |
106 | res = disabled_for; | |
107 | } | |
108 | ||
109 | return res; | |
110 | } | |
111 | #endif /* CONFIG_NO_SCAN_PROCESSING */ | |
112 | ||
113 | ||
114 | void wpas_network_reenabled(void *eloop_ctx, void *timeout_ctx) | |
115 | { | |
116 | struct wpa_supplicant *wpa_s = eloop_ctx; | |
117 | ||
118 | if (wpa_s->disconnected || wpa_s->wpa_state != WPA_SCANNING) | |
119 | return; | |
120 | ||
121 | wpa_dbg(wpa_s, MSG_DEBUG, | |
122 | "Try to associate due to network getting re-enabled"); | |
123 | if (wpa_supplicant_fast_associate(wpa_s) != 1) { | |
124 | wpa_supplicant_cancel_sched_scan(wpa_s); | |
125 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
126 | } | |
127 | } | |
128 | ||
129 | ||
130 | static struct wpa_bss * wpa_supplicant_get_new_bss( | |
131 | struct wpa_supplicant *wpa_s, const u8 *bssid) | |
132 | { | |
133 | struct wpa_bss *bss = NULL; | |
134 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
135 | ||
136 | if (ssid->ssid_len > 0) | |
137 | bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len); | |
138 | if (!bss) | |
139 | bss = wpa_bss_get_bssid(wpa_s, bssid); | |
140 | ||
141 | return bss; | |
142 | } | |
143 | ||
144 | ||
145 | static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s) | |
146 | { | |
147 | struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid); | |
148 | ||
149 | if (!bss) { | |
150 | wpa_supplicant_update_scan_results(wpa_s); | |
151 | ||
152 | /* Get the BSS from the new scan results */ | |
153 | bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid); | |
154 | } | |
155 | ||
156 | if (bss) | |
157 | wpa_s->current_bss = bss; | |
158 | } | |
159 | ||
160 | ||
161 | static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s) | |
162 | { | |
163 | struct wpa_ssid *ssid, *old_ssid; | |
164 | u8 drv_ssid[SSID_MAX_LEN]; | |
165 | size_t drv_ssid_len; | |
166 | int res; | |
167 | ||
168 | if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) { | |
169 | wpa_supplicant_update_current_bss(wpa_s); | |
170 | ||
171 | if (wpa_s->current_ssid->ssid_len == 0) | |
172 | return 0; /* current profile still in use */ | |
173 | res = wpa_drv_get_ssid(wpa_s, drv_ssid); | |
174 | if (res < 0) { | |
175 | wpa_msg(wpa_s, MSG_INFO, | |
176 | "Failed to read SSID from driver"); | |
177 | return 0; /* try to use current profile */ | |
178 | } | |
179 | drv_ssid_len = res; | |
180 | ||
181 | if (drv_ssid_len == wpa_s->current_ssid->ssid_len && | |
182 | os_memcmp(drv_ssid, wpa_s->current_ssid->ssid, | |
183 | drv_ssid_len) == 0) | |
184 | return 0; /* current profile still in use */ | |
185 | ||
186 | wpa_msg(wpa_s, MSG_DEBUG, | |
187 | "Driver-initiated BSS selection changed the SSID to %s", | |
188 | wpa_ssid_txt(drv_ssid, drv_ssid_len)); | |
189 | /* continue selecting a new network profile */ | |
190 | } | |
191 | ||
192 | wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association " | |
193 | "information"); | |
194 | ssid = wpa_supplicant_get_ssid(wpa_s); | |
195 | if (ssid == NULL) { | |
196 | wpa_msg(wpa_s, MSG_INFO, | |
197 | "No network configuration found for the current AP"); | |
198 | return -1; | |
199 | } | |
200 | ||
201 | if (wpas_network_disabled(wpa_s, ssid)) { | |
202 | wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled"); | |
203 | return -1; | |
204 | } | |
205 | ||
206 | if (disallowed_bssid(wpa_s, wpa_s->bssid) || | |
207 | disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) { | |
208 | wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed"); | |
209 | return -1; | |
210 | } | |
211 | ||
212 | res = wpas_temp_disabled(wpa_s, ssid); | |
213 | if (res > 0) { | |
214 | wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily " | |
215 | "disabled for %d second(s)", res); | |
216 | return -1; | |
217 | } | |
218 | ||
219 | wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the " | |
220 | "current AP"); | |
221 | if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) { | |
222 | u8 wpa_ie[80]; | |
223 | size_t wpa_ie_len = sizeof(wpa_ie); | |
224 | if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, | |
225 | wpa_ie, &wpa_ie_len) < 0) | |
226 | wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites"); | |
227 | } else { | |
228 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
229 | } | |
230 | ||
231 | if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) | |
232 | eapol_sm_invalidate_cached_session(wpa_s->eapol); | |
233 | old_ssid = wpa_s->current_ssid; | |
234 | wpa_s->current_ssid = ssid; | |
235 | ||
236 | wpa_supplicant_update_current_bss(wpa_s); | |
237 | ||
238 | wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); | |
239 | wpa_supplicant_initiate_eapol(wpa_s); | |
240 | if (old_ssid != wpa_s->current_ssid) | |
241 | wpas_notify_network_changed(wpa_s); | |
242 | ||
243 | return 0; | |
244 | } | |
245 | ||
246 | ||
247 | void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx) | |
248 | { | |
249 | struct wpa_supplicant *wpa_s = eloop_ctx; | |
250 | ||
251 | if (wpa_s->countermeasures) { | |
252 | wpa_s->countermeasures = 0; | |
253 | wpa_drv_set_countermeasures(wpa_s, 0); | |
254 | wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped"); | |
255 | ||
256 | /* | |
257 | * It is possible that the device is sched scanning, which means | |
258 | * that a connection attempt will be done only when we receive | |
259 | * scan results. However, in this case, it would be preferable | |
260 | * to scan and connect immediately, so cancel the sched_scan and | |
261 | * issue a regular scan flow. | |
262 | */ | |
263 | wpa_supplicant_cancel_sched_scan(wpa_s); | |
264 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
265 | } | |
266 | } | |
267 | ||
268 | ||
269 | void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s) | |
270 | { | |
271 | int bssid_changed; | |
272 | ||
273 | wnm_bss_keep_alive_deinit(wpa_s); | |
274 | ||
275 | #ifdef CONFIG_IBSS_RSN | |
276 | ibss_rsn_deinit(wpa_s->ibss_rsn); | |
277 | wpa_s->ibss_rsn = NULL; | |
278 | #endif /* CONFIG_IBSS_RSN */ | |
279 | ||
280 | #ifdef CONFIG_AP | |
281 | wpa_supplicant_ap_deinit(wpa_s); | |
282 | #endif /* CONFIG_AP */ | |
283 | ||
284 | #ifdef CONFIG_HS20 | |
285 | /* Clear possibly configured frame filters */ | |
286 | wpa_drv_configure_frame_filters(wpa_s, 0); | |
287 | #endif /* CONFIG_HS20 */ | |
288 | ||
289 | if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) | |
290 | return; | |
291 | ||
292 | wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); | |
293 | bssid_changed = !is_zero_ether_addr(wpa_s->bssid); | |
294 | os_memset(wpa_s->bssid, 0, ETH_ALEN); | |
295 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); | |
296 | sme_clear_on_disassoc(wpa_s); | |
297 | wpa_s->current_bss = NULL; | |
298 | wpa_s->assoc_freq = 0; | |
299 | ||
300 | if (bssid_changed) | |
301 | wpas_notify_bssid_changed(wpa_s); | |
302 | ||
303 | eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); | |
304 | eapol_sm_notify_portValid(wpa_s->eapol, FALSE); | |
305 | if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) | |
306 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); | |
307 | wpa_s->ap_ies_from_associnfo = 0; | |
308 | wpa_s->current_ssid = NULL; | |
309 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
310 | wpa_s->key_mgmt = 0; | |
311 | ||
312 | wpas_rrm_reset(wpa_s); | |
313 | wpa_s->wnmsleep_used = 0; | |
314 | } | |
315 | ||
316 | ||
317 | static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s) | |
318 | { | |
319 | struct wpa_ie_data ie; | |
320 | int pmksa_set = -1; | |
321 | size_t i; | |
322 | ||
323 | if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 || | |
324 | ie.pmkid == NULL) | |
325 | return; | |
326 | ||
327 | for (i = 0; i < ie.num_pmkid; i++) { | |
328 | pmksa_set = pmksa_cache_set_current(wpa_s->wpa, | |
329 | ie.pmkid + i * PMKID_LEN, | |
330 | NULL, NULL, 0); | |
331 | if (pmksa_set == 0) { | |
332 | eapol_sm_notify_pmkid_attempt(wpa_s->eapol); | |
333 | break; | |
334 | } | |
335 | } | |
336 | ||
337 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from " | |
338 | "PMKSA cache", pmksa_set == 0 ? "" : "not "); | |
339 | } | |
340 | ||
341 | ||
342 | static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s, | |
343 | union wpa_event_data *data) | |
344 | { | |
345 | if (data == NULL) { | |
346 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate " | |
347 | "event"); | |
348 | return; | |
349 | } | |
350 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR | |
351 | " index=%d preauth=%d", | |
352 | MAC2STR(data->pmkid_candidate.bssid), | |
353 | data->pmkid_candidate.index, | |
354 | data->pmkid_candidate.preauth); | |
355 | ||
356 | pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid, | |
357 | data->pmkid_candidate.index, | |
358 | data->pmkid_candidate.preauth); | |
359 | } | |
360 | ||
361 | ||
362 | static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s) | |
363 | { | |
364 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || | |
365 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) | |
366 | return 0; | |
367 | ||
368 | #ifdef IEEE8021X_EAPOL | |
369 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA && | |
370 | wpa_s->current_ssid && | |
371 | !(wpa_s->current_ssid->eapol_flags & | |
372 | (EAPOL_FLAG_REQUIRE_KEY_UNICAST | | |
373 | EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) { | |
374 | /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either | |
375 | * plaintext or static WEP keys). */ | |
376 | return 0; | |
377 | } | |
378 | #endif /* IEEE8021X_EAPOL */ | |
379 | ||
380 | return 1; | |
381 | } | |
382 | ||
383 | ||
384 | /** | |
385 | * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC | |
386 | * @wpa_s: pointer to wpa_supplicant data | |
387 | * @ssid: Configuration data for the network | |
388 | * Returns: 0 on success, -1 on failure | |
389 | * | |
390 | * This function is called when starting authentication with a network that is | |
391 | * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA). | |
392 | */ | |
393 | int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s, | |
394 | struct wpa_ssid *ssid) | |
395 | { | |
396 | #ifdef IEEE8021X_EAPOL | |
397 | #ifdef PCSC_FUNCS | |
398 | int aka = 0, sim = 0; | |
399 | ||
400 | if ((ssid != NULL && ssid->eap.pcsc == NULL) || | |
401 | wpa_s->scard != NULL || wpa_s->conf->external_sim) | |
402 | return 0; | |
403 | ||
404 | if (ssid == NULL || ssid->eap.eap_methods == NULL) { | |
405 | sim = 1; | |
406 | aka = 1; | |
407 | } else { | |
408 | struct eap_method_type *eap = ssid->eap.eap_methods; | |
409 | while (eap->vendor != EAP_VENDOR_IETF || | |
410 | eap->method != EAP_TYPE_NONE) { | |
411 | if (eap->vendor == EAP_VENDOR_IETF) { | |
412 | if (eap->method == EAP_TYPE_SIM) | |
413 | sim = 1; | |
414 | else if (eap->method == EAP_TYPE_AKA || | |
415 | eap->method == EAP_TYPE_AKA_PRIME) | |
416 | aka = 1; | |
417 | } | |
418 | eap++; | |
419 | } | |
420 | } | |
421 | ||
422 | if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL) | |
423 | sim = 0; | |
424 | if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL && | |
425 | eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) == | |
426 | NULL) | |
427 | aka = 0; | |
428 | ||
429 | if (!sim && !aka) { | |
430 | wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to " | |
431 | "use SIM, but neither EAP-SIM nor EAP-AKA are " | |
432 | "enabled"); | |
433 | return 0; | |
434 | } | |
435 | ||
436 | wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM " | |
437 | "(sim=%d aka=%d) - initialize PCSC", sim, aka); | |
438 | ||
439 | wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader); | |
440 | if (wpa_s->scard == NULL) { | |
441 | wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM " | |
442 | "(pcsc-lite)"); | |
443 | return -1; | |
444 | } | |
445 | wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard); | |
446 | eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard); | |
447 | #endif /* PCSC_FUNCS */ | |
448 | #endif /* IEEE8021X_EAPOL */ | |
449 | ||
450 | return 0; | |
451 | } | |
452 | ||
453 | ||
454 | #ifndef CONFIG_NO_SCAN_PROCESSING | |
455 | ||
456 | static int has_wep_key(struct wpa_ssid *ssid) | |
457 | { | |
458 | int i; | |
459 | ||
460 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
461 | if (ssid->wep_key_len[i]) | |
462 | return 1; | |
463 | } | |
464 | ||
465 | return 0; | |
466 | } | |
467 | ||
468 | ||
469 | static int wpa_supplicant_match_privacy(struct wpa_bss *bss, | |
470 | struct wpa_ssid *ssid) | |
471 | { | |
472 | int privacy = 0; | |
473 | ||
474 | if (ssid->mixed_cell) | |
475 | return 1; | |
476 | ||
477 | #ifdef CONFIG_WPS | |
478 | if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) | |
479 | return 1; | |
480 | #endif /* CONFIG_WPS */ | |
481 | ||
482 | if (has_wep_key(ssid)) | |
483 | privacy = 1; | |
484 | ||
485 | #ifdef IEEE8021X_EAPOL | |
486 | if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && | |
487 | ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST | | |
488 | EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) | |
489 | privacy = 1; | |
490 | #endif /* IEEE8021X_EAPOL */ | |
491 | ||
492 | if (wpa_key_mgmt_wpa(ssid->key_mgmt)) | |
493 | privacy = 1; | |
494 | ||
495 | if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN) | |
496 | privacy = 1; | |
497 | ||
498 | if (bss->caps & IEEE80211_CAP_PRIVACY) | |
499 | return privacy; | |
500 | return !privacy; | |
501 | } | |
502 | ||
503 | ||
504 | static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s, | |
505 | struct wpa_ssid *ssid, | |
506 | struct wpa_bss *bss) | |
507 | { | |
508 | struct wpa_ie_data ie; | |
509 | int proto_match = 0; | |
510 | const u8 *rsn_ie, *wpa_ie; | |
511 | int ret; | |
512 | int wep_ok; | |
513 | ||
514 | ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss); | |
515 | if (ret >= 0) | |
516 | return ret; | |
517 | ||
518 | /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */ | |
519 | wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) && | |
520 | (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) && | |
521 | ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) || | |
522 | (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)); | |
523 | ||
524 | rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); | |
525 | while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) { | |
526 | proto_match++; | |
527 | ||
528 | if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) { | |
529 | wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse " | |
530 | "failed"); | |
531 | break; | |
532 | } | |
533 | ||
534 | if (wep_ok && | |
535 | (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) | |
536 | { | |
537 | wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " | |
538 | "in RSN IE"); | |
539 | return 1; | |
540 | } | |
541 | ||
542 | if (!(ie.proto & ssid->proto)) { | |
543 | wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto " | |
544 | "mismatch"); | |
545 | break; | |
546 | } | |
547 | ||
548 | if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { | |
549 | wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK " | |
550 | "cipher mismatch"); | |
551 | break; | |
552 | } | |
553 | ||
554 | if (!(ie.group_cipher & ssid->group_cipher)) { | |
555 | wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK " | |
556 | "cipher mismatch"); | |
557 | break; | |
558 | } | |
559 | ||
560 | if (!(ie.key_mgmt & ssid->key_mgmt)) { | |
561 | wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt " | |
562 | "mismatch"); | |
563 | break; | |
564 | } | |
565 | ||
566 | #ifdef CONFIG_IEEE80211W | |
567 | if (!(ie.capabilities & WPA_CAPABILITY_MFPC) && | |
568 | wpas_get_ssid_pmf(wpa_s, ssid) == | |
569 | MGMT_FRAME_PROTECTION_REQUIRED) { | |
570 | wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt " | |
571 | "frame protection"); | |
572 | break; | |
573 | } | |
574 | #endif /* CONFIG_IEEE80211W */ | |
575 | if ((ie.capabilities & WPA_CAPABILITY_MFPR) && | |
576 | wpas_get_ssid_pmf(wpa_s, ssid) == | |
577 | NO_MGMT_FRAME_PROTECTION) { | |
578 | wpa_dbg(wpa_s, MSG_DEBUG, | |
579 | " skip RSN IE - no mgmt frame protection enabled but AP requires it"); | |
580 | break; | |
581 | } | |
582 | #ifdef CONFIG_MBO | |
583 | if (!(ie.capabilities & WPA_CAPABILITY_MFPC) && | |
584 | wpas_mbo_get_bss_attr(bss, MBO_ATTR_ID_AP_CAPA_IND) && | |
585 | wpas_get_ssid_pmf(wpa_s, ssid) != | |
586 | NO_MGMT_FRAME_PROTECTION) { | |
587 | wpa_dbg(wpa_s, MSG_DEBUG, | |
588 | " skip RSN IE - no mgmt frame protection enabled on MBO AP"); | |
589 | break; | |
590 | } | |
591 | #endif /* CONFIG_MBO */ | |
592 | ||
593 | wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE"); | |
594 | return 1; | |
595 | } | |
596 | ||
597 | wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); | |
598 | while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) { | |
599 | proto_match++; | |
600 | ||
601 | if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) { | |
602 | wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse " | |
603 | "failed"); | |
604 | break; | |
605 | } | |
606 | ||
607 | if (wep_ok && | |
608 | (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) | |
609 | { | |
610 | wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " | |
611 | "in WPA IE"); | |
612 | return 1; | |
613 | } | |
614 | ||
615 | if (!(ie.proto & ssid->proto)) { | |
616 | wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto " | |
617 | "mismatch"); | |
618 | break; | |
619 | } | |
620 | ||
621 | if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { | |
622 | wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK " | |
623 | "cipher mismatch"); | |
624 | break; | |
625 | } | |
626 | ||
627 | if (!(ie.group_cipher & ssid->group_cipher)) { | |
628 | wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK " | |
629 | "cipher mismatch"); | |
630 | break; | |
631 | } | |
632 | ||
633 | if (!(ie.key_mgmt & ssid->key_mgmt)) { | |
634 | wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt " | |
635 | "mismatch"); | |
636 | break; | |
637 | } | |
638 | ||
639 | wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE"); | |
640 | return 1; | |
641 | } | |
642 | ||
643 | if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie && | |
644 | !rsn_ie) { | |
645 | wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X"); | |
646 | return 1; | |
647 | } | |
648 | ||
649 | if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) && | |
650 | wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) { | |
651 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match"); | |
652 | return 0; | |
653 | } | |
654 | ||
655 | if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && | |
656 | wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) { | |
657 | wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN"); | |
658 | return 1; | |
659 | } | |
660 | ||
661 | if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) { | |
662 | wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2"); | |
663 | return 1; | |
664 | } | |
665 | ||
666 | wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with " | |
667 | "WPA/WPA2"); | |
668 | ||
669 | return 0; | |
670 | } | |
671 | ||
672 | ||
673 | static int freq_allowed(int *freqs, int freq) | |
674 | { | |
675 | int i; | |
676 | ||
677 | if (freqs == NULL) | |
678 | return 1; | |
679 | ||
680 | for (i = 0; freqs[i]; i++) | |
681 | if (freqs[i] == freq) | |
682 | return 1; | |
683 | return 0; | |
684 | } | |
685 | ||
686 | ||
687 | static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss) | |
688 | { | |
689 | const struct hostapd_hw_modes *mode = NULL, *modes; | |
690 | const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES }; | |
691 | const u8 *rate_ie; | |
692 | int i, j, k; | |
693 | ||
694 | if (bss->freq == 0) | |
695 | return 1; /* Cannot do matching without knowing band */ | |
696 | ||
697 | modes = wpa_s->hw.modes; | |
698 | if (modes == NULL) { | |
699 | /* | |
700 | * The driver does not provide any additional information | |
701 | * about the utilized hardware, so allow the connection attempt | |
702 | * to continue. | |
703 | */ | |
704 | return 1; | |
705 | } | |
706 | ||
707 | for (i = 0; i < wpa_s->hw.num_modes; i++) { | |
708 | for (j = 0; j < modes[i].num_channels; j++) { | |
709 | int freq = modes[i].channels[j].freq; | |
710 | if (freq == bss->freq) { | |
711 | if (mode && | |
712 | mode->mode == HOSTAPD_MODE_IEEE80211G) | |
713 | break; /* do not allow 802.11b replace | |
714 | * 802.11g */ | |
715 | mode = &modes[i]; | |
716 | break; | |
717 | } | |
718 | } | |
719 | } | |
720 | ||
721 | if (mode == NULL) | |
722 | return 0; | |
723 | ||
724 | for (i = 0; i < (int) sizeof(scan_ie); i++) { | |
725 | rate_ie = wpa_bss_get_ie(bss, scan_ie[i]); | |
726 | if (rate_ie == NULL) | |
727 | continue; | |
728 | ||
729 | for (j = 2; j < rate_ie[1] + 2; j++) { | |
730 | int flagged = !!(rate_ie[j] & 0x80); | |
731 | int r = (rate_ie[j] & 0x7f) * 5; | |
732 | ||
733 | /* | |
734 | * IEEE Std 802.11n-2009 7.3.2.2: | |
735 | * The new BSS Membership selector value is encoded | |
736 | * like a legacy basic rate, but it is not a rate and | |
737 | * only indicates if the BSS members are required to | |
738 | * support the mandatory features of Clause 20 [HT PHY] | |
739 | * in order to join the BSS. | |
740 | */ | |
741 | if (flagged && ((rate_ie[j] & 0x7f) == | |
742 | BSS_MEMBERSHIP_SELECTOR_HT_PHY)) { | |
743 | if (!ht_supported(mode)) { | |
744 | wpa_dbg(wpa_s, MSG_DEBUG, | |
745 | " hardware does not support " | |
746 | "HT PHY"); | |
747 | return 0; | |
748 | } | |
749 | continue; | |
750 | } | |
751 | ||
752 | /* There's also a VHT selector for 802.11ac */ | |
753 | if (flagged && ((rate_ie[j] & 0x7f) == | |
754 | BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) { | |
755 | if (!vht_supported(mode)) { | |
756 | wpa_dbg(wpa_s, MSG_DEBUG, | |
757 | " hardware does not support " | |
758 | "VHT PHY"); | |
759 | return 0; | |
760 | } | |
761 | continue; | |
762 | } | |
763 | ||
764 | if (!flagged) | |
765 | continue; | |
766 | ||
767 | /* check for legacy basic rates */ | |
768 | for (k = 0; k < mode->num_rates; k++) { | |
769 | if (mode->rates[k] == r) | |
770 | break; | |
771 | } | |
772 | if (k == mode->num_rates) { | |
773 | /* | |
774 | * IEEE Std 802.11-2007 7.3.2.2 demands that in | |
775 | * order to join a BSS all required rates | |
776 | * have to be supported by the hardware. | |
777 | */ | |
778 | wpa_dbg(wpa_s, MSG_DEBUG, | |
779 | " hardware does not support required rate %d.%d Mbps (freq=%d mode==%d num_rates=%d)", | |
780 | r / 10, r % 10, | |
781 | bss->freq, mode->mode, mode->num_rates); | |
782 | return 0; | |
783 | } | |
784 | } | |
785 | } | |
786 | ||
787 | return 1; | |
788 | } | |
789 | ||
790 | ||
791 | /* | |
792 | * Test whether BSS is in an ESS. | |
793 | * This is done differently in DMG (60 GHz) and non-DMG bands | |
794 | */ | |
795 | static int bss_is_ess(struct wpa_bss *bss) | |
796 | { | |
797 | if (bss_is_dmg(bss)) { | |
798 | return (bss->caps & IEEE80211_CAP_DMG_MASK) == | |
799 | IEEE80211_CAP_DMG_AP; | |
800 | } | |
801 | ||
802 | return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) == | |
803 | IEEE80211_CAP_ESS); | |
804 | } | |
805 | ||
806 | ||
807 | static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask) | |
808 | { | |
809 | size_t i; | |
810 | ||
811 | for (i = 0; i < ETH_ALEN; i++) { | |
812 | if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i])) | |
813 | return 0; | |
814 | } | |
815 | return 1; | |
816 | } | |
817 | ||
818 | ||
819 | static int addr_in_list(const u8 *addr, const u8 *list, size_t num) | |
820 | { | |
821 | size_t i; | |
822 | ||
823 | for (i = 0; i < num; i++) { | |
824 | const u8 *a = list + i * ETH_ALEN * 2; | |
825 | const u8 *m = a + ETH_ALEN; | |
826 | ||
827 | if (match_mac_mask(a, addr, m)) | |
828 | return 1; | |
829 | } | |
830 | return 0; | |
831 | } | |
832 | ||
833 | ||
834 | struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s, | |
835 | int i, struct wpa_bss *bss, | |
836 | struct wpa_ssid *group, | |
837 | int only_first_ssid) | |
838 | { | |
839 | u8 wpa_ie_len, rsn_ie_len; | |
840 | int wpa; | |
841 | struct wpa_blacklist *e; | |
842 | const u8 *ie; | |
843 | struct wpa_ssid *ssid; | |
844 | int osen; | |
845 | #ifdef CONFIG_MBO | |
846 | const u8 *assoc_disallow; | |
847 | #endif /* CONFIG_MBO */ | |
848 | ||
849 | ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); | |
850 | wpa_ie_len = ie ? ie[1] : 0; | |
851 | ||
852 | ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); | |
853 | rsn_ie_len = ie ? ie[1] : 0; | |
854 | ||
855 | ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE); | |
856 | osen = ie != NULL; | |
857 | ||
858 | wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' " | |
859 | "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d freq=%d %s%s%s", | |
860 | i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len), | |
861 | wpa_ie_len, rsn_ie_len, bss->caps, bss->level, bss->freq, | |
862 | wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "", | |
863 | (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) || | |
864 | wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) ? | |
865 | " p2p" : "", | |
866 | osen ? " osen=1" : ""); | |
867 | ||
868 | e = wpa_blacklist_get(wpa_s, bss->bssid); | |
869 | if (e) { | |
870 | int limit = 1; | |
871 | if (wpa_supplicant_enabled_networks(wpa_s) == 1) { | |
872 | /* | |
873 | * When only a single network is enabled, we can | |
874 | * trigger blacklisting on the first failure. This | |
875 | * should not be done with multiple enabled networks to | |
876 | * avoid getting forced to move into a worse ESS on | |
877 | * single error if there are no other BSSes of the | |
878 | * current ESS. | |
879 | */ | |
880 | limit = 0; | |
881 | } | |
882 | if (e->count > limit) { | |
883 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " | |
884 | "(count=%d limit=%d)", e->count, limit); | |
885 | return NULL; | |
886 | } | |
887 | } | |
888 | ||
889 | if (bss->ssid_len == 0) { | |
890 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known"); | |
891 | return NULL; | |
892 | } | |
893 | ||
894 | if (disallowed_bssid(wpa_s, bss->bssid)) { | |
895 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed"); | |
896 | return NULL; | |
897 | } | |
898 | ||
899 | if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) { | |
900 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed"); | |
901 | return NULL; | |
902 | } | |
903 | ||
904 | wpa = wpa_ie_len > 0 || rsn_ie_len > 0; | |
905 | ||
906 | for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) { | |
907 | int check_ssid = wpa ? 1 : (ssid->ssid_len != 0); | |
908 | int res; | |
909 | ||
910 | if (wpas_network_disabled(wpa_s, ssid)) { | |
911 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled"); | |
912 | continue; | |
913 | } | |
914 | ||
915 | res = wpas_temp_disabled(wpa_s, ssid); | |
916 | if (res > 0) { | |
917 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled " | |
918 | "temporarily for %d second(s)", res); | |
919 | continue; | |
920 | } | |
921 | ||
922 | #ifdef CONFIG_WPS | |
923 | if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) { | |
924 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " | |
925 | "(WPS)"); | |
926 | continue; | |
927 | } | |
928 | ||
929 | if (wpa && ssid->ssid_len == 0 && | |
930 | wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) | |
931 | check_ssid = 0; | |
932 | ||
933 | if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { | |
934 | /* Only allow wildcard SSID match if an AP | |
935 | * advertises active WPS operation that matches | |
936 | * with our mode. */ | |
937 | check_ssid = 1; | |
938 | if (ssid->ssid_len == 0 && | |
939 | wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) | |
940 | check_ssid = 0; | |
941 | } | |
942 | #endif /* CONFIG_WPS */ | |
943 | ||
944 | if (ssid->bssid_set && ssid->ssid_len == 0 && | |
945 | os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0) | |
946 | check_ssid = 0; | |
947 | ||
948 | if (check_ssid && | |
949 | (bss->ssid_len != ssid->ssid_len || | |
950 | os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) { | |
951 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch"); | |
952 | continue; | |
953 | } | |
954 | ||
955 | if (ssid->bssid_set && | |
956 | os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) { | |
957 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch"); | |
958 | continue; | |
959 | } | |
960 | ||
961 | /* check blacklist */ | |
962 | if (ssid->num_bssid_blacklist && | |
963 | addr_in_list(bss->bssid, ssid->bssid_blacklist, | |
964 | ssid->num_bssid_blacklist)) { | |
965 | wpa_dbg(wpa_s, MSG_DEBUG, | |
966 | " skip - BSSID blacklisted"); | |
967 | continue; | |
968 | } | |
969 | ||
970 | /* if there is a whitelist, only accept those APs */ | |
971 | if (ssid->num_bssid_whitelist && | |
972 | !addr_in_list(bss->bssid, ssid->bssid_whitelist, | |
973 | ssid->num_bssid_whitelist)) { | |
974 | wpa_dbg(wpa_s, MSG_DEBUG, | |
975 | " skip - BSSID not in whitelist"); | |
976 | continue; | |
977 | } | |
978 | ||
979 | if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss)) | |
980 | continue; | |
981 | ||
982 | if (!osen && !wpa && | |
983 | !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) && | |
984 | !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) && | |
985 | !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) { | |
986 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network " | |
987 | "not allowed"); | |
988 | continue; | |
989 | } | |
990 | ||
991 | if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) && | |
992 | has_wep_key(ssid)) { | |
993 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - ignore WPA/WPA2 AP for WEP network block"); | |
994 | continue; | |
995 | } | |
996 | ||
997 | if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen) { | |
998 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-OSEN network " | |
999 | "not allowed"); | |
1000 | continue; | |
1001 | } | |
1002 | ||
1003 | if (!wpa_supplicant_match_privacy(bss, ssid)) { | |
1004 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy " | |
1005 | "mismatch"); | |
1006 | continue; | |
1007 | } | |
1008 | ||
1009 | if (!bss_is_ess(bss) && !bss_is_pbss(bss)) { | |
1010 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - neither ESS nor PBSS network"); | |
1011 | continue; | |
1012 | } | |
1013 | ||
1014 | if (ssid->pbss != 2 && ssid->pbss != bss_is_pbss(bss)) { | |
1015 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - PBSS mismatch (ssid %d bss %d)", | |
1016 | ssid->pbss, bss_is_pbss(bss)); | |
1017 | continue; | |
1018 | } | |
1019 | ||
1020 | if (!freq_allowed(ssid->freq_list, bss->freq)) { | |
1021 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not " | |
1022 | "allowed"); | |
1023 | continue; | |
1024 | } | |
1025 | ||
1026 | if (!rate_match(wpa_s, bss)) { | |
1027 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do " | |
1028 | "not match"); | |
1029 | continue; | |
1030 | } | |
1031 | ||
1032 | #ifdef CONFIG_P2P | |
1033 | if (ssid->p2p_group && | |
1034 | !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) && | |
1035 | !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) { | |
1036 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P IE seen"); | |
1037 | continue; | |
1038 | } | |
1039 | ||
1040 | if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) { | |
1041 | struct wpabuf *p2p_ie; | |
1042 | u8 dev_addr[ETH_ALEN]; | |
1043 | ||
1044 | ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE); | |
1045 | if (ie == NULL) { | |
1046 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P element"); | |
1047 | continue; | |
1048 | } | |
1049 | p2p_ie = wpa_bss_get_vendor_ie_multi( | |
1050 | bss, P2P_IE_VENDOR_TYPE); | |
1051 | if (p2p_ie == NULL) { | |
1052 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - could not fetch P2P element"); | |
1053 | continue; | |
1054 | } | |
1055 | ||
1056 | if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0 | |
1057 | || os_memcmp(dev_addr, ssid->go_p2p_dev_addr, | |
1058 | ETH_ALEN) != 0) { | |
1059 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - no matching GO P2P Device Address in P2P element"); | |
1060 | wpabuf_free(p2p_ie); | |
1061 | continue; | |
1062 | } | |
1063 | wpabuf_free(p2p_ie); | |
1064 | } | |
1065 | ||
1066 | /* | |
1067 | * TODO: skip the AP if its P2P IE has Group Formation | |
1068 | * bit set in the P2P Group Capability Bitmap and we | |
1069 | * are not in Group Formation with that device. | |
1070 | */ | |
1071 | #endif /* CONFIG_P2P */ | |
1072 | ||
1073 | if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time)) | |
1074 | { | |
1075 | struct os_reltime diff; | |
1076 | ||
1077 | os_reltime_sub(&wpa_s->scan_min_time, | |
1078 | &bss->last_update, &diff); | |
1079 | wpa_dbg(wpa_s, MSG_DEBUG, | |
1080 | " skip - scan result not recent enough (%u.%06u seconds too old)", | |
1081 | (unsigned int) diff.sec, | |
1082 | (unsigned int) diff.usec); | |
1083 | continue; | |
1084 | } | |
1085 | #ifdef CONFIG_MBO | |
1086 | assoc_disallow = wpas_mbo_get_bss_attr( | |
1087 | bss, MBO_ATTR_ID_ASSOC_DISALLOW); | |
1088 | if (assoc_disallow && assoc_disallow[1] >= 1) { | |
1089 | wpa_dbg(wpa_s, MSG_DEBUG, | |
1090 | " skip - MBO association disallowed (reason %u)", | |
1091 | assoc_disallow[2]); | |
1092 | continue; | |
1093 | } | |
1094 | ||
1095 | if (wpa_is_bss_tmp_disallowed(wpa_s, bss->bssid)) { | |
1096 | wpa_dbg(wpa_s, MSG_DEBUG, | |
1097 | " skip - MBO retry delay has not passed yet"); | |
1098 | continue; | |
1099 | } | |
1100 | #endif /* CONFIG_MBO */ | |
1101 | ||
1102 | /* Matching configuration found */ | |
1103 | return ssid; | |
1104 | } | |
1105 | ||
1106 | /* No matching configuration found */ | |
1107 | return NULL; | |
1108 | } | |
1109 | ||
1110 | ||
1111 | static struct wpa_bss * | |
1112 | wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s, | |
1113 | struct wpa_ssid *group, | |
1114 | struct wpa_ssid **selected_ssid, | |
1115 | int only_first_ssid) | |
1116 | { | |
1117 | unsigned int i; | |
1118 | ||
1119 | if (only_first_ssid) | |
1120 | wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d", | |
1121 | group->id); | |
1122 | else | |
1123 | wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d", | |
1124 | group->priority); | |
1125 | ||
1126 | for (i = 0; i < wpa_s->last_scan_res_used; i++) { | |
1127 | struct wpa_bss *bss = wpa_s->last_scan_res[i]; | |
1128 | *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group, | |
1129 | only_first_ssid); | |
1130 | if (!*selected_ssid) | |
1131 | continue; | |
1132 | wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR | |
1133 | " ssid='%s'", | |
1134 | MAC2STR(bss->bssid), | |
1135 | wpa_ssid_txt(bss->ssid, bss->ssid_len)); | |
1136 | return bss; | |
1137 | } | |
1138 | ||
1139 | return NULL; | |
1140 | } | |
1141 | ||
1142 | ||
1143 | struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s, | |
1144 | struct wpa_ssid **selected_ssid) | |
1145 | { | |
1146 | struct wpa_bss *selected = NULL; | |
1147 | int prio; | |
1148 | struct wpa_ssid *next_ssid = NULL; | |
1149 | struct wpa_ssid *ssid; | |
1150 | ||
1151 | if (wpa_s->last_scan_res == NULL || | |
1152 | wpa_s->last_scan_res_used == 0) | |
1153 | return NULL; /* no scan results from last update */ | |
1154 | ||
1155 | if (wpa_s->next_ssid) { | |
1156 | /* check that next_ssid is still valid */ | |
1157 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { | |
1158 | if (ssid == wpa_s->next_ssid) | |
1159 | break; | |
1160 | } | |
1161 | next_ssid = ssid; | |
1162 | wpa_s->next_ssid = NULL; | |
1163 | } | |
1164 | ||
1165 | while (selected == NULL) { | |
1166 | for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { | |
1167 | if (next_ssid && next_ssid->priority == | |
1168 | wpa_s->conf->pssid[prio]->priority) { | |
1169 | selected = wpa_supplicant_select_bss( | |
1170 | wpa_s, next_ssid, selected_ssid, 1); | |
1171 | if (selected) | |
1172 | break; | |
1173 | } | |
1174 | selected = wpa_supplicant_select_bss( | |
1175 | wpa_s, wpa_s->conf->pssid[prio], | |
1176 | selected_ssid, 0); | |
1177 | if (selected) | |
1178 | break; | |
1179 | } | |
1180 | ||
1181 | if (selected == NULL && wpa_s->blacklist && | |
1182 | !wpa_s->countermeasures) { | |
1183 | wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear " | |
1184 | "blacklist and try again"); | |
1185 | wpa_blacklist_clear(wpa_s); | |
1186 | wpa_s->blacklist_cleared++; | |
1187 | } else if (selected == NULL) | |
1188 | break; | |
1189 | } | |
1190 | ||
1191 | ssid = *selected_ssid; | |
1192 | if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set && | |
1193 | !ssid->passphrase && !ssid->ext_psk) { | |
1194 | const char *field_name, *txt = NULL; | |
1195 | ||
1196 | wpa_dbg(wpa_s, MSG_DEBUG, | |
1197 | "PSK/passphrase not yet available for the selected network"); | |
1198 | ||
1199 | wpas_notify_network_request(wpa_s, ssid, | |
1200 | WPA_CTRL_REQ_PSK_PASSPHRASE, NULL); | |
1201 | ||
1202 | field_name = wpa_supplicant_ctrl_req_to_string( | |
1203 | WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt); | |
1204 | if (field_name == NULL) | |
1205 | return NULL; | |
1206 | ||
1207 | wpas_send_ctrl_req(wpa_s, ssid, field_name, txt); | |
1208 | ||
1209 | selected = NULL; | |
1210 | } | |
1211 | ||
1212 | return selected; | |
1213 | } | |
1214 | ||
1215 | ||
1216 | static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s, | |
1217 | int timeout_sec, int timeout_usec) | |
1218 | { | |
1219 | if (!wpa_supplicant_enabled_networks(wpa_s)) { | |
1220 | /* | |
1221 | * No networks are enabled; short-circuit request so | |
1222 | * we don't wait timeout seconds before transitioning | |
1223 | * to INACTIVE state. | |
1224 | */ | |
1225 | wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request " | |
1226 | "since there are no enabled networks"); | |
1227 | wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); | |
1228 | return; | |
1229 | } | |
1230 | ||
1231 | wpa_s->scan_for_connection = 1; | |
1232 | wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec); | |
1233 | } | |
1234 | ||
1235 | ||
1236 | int wpa_supplicant_connect(struct wpa_supplicant *wpa_s, | |
1237 | struct wpa_bss *selected, | |
1238 | struct wpa_ssid *ssid) | |
1239 | { | |
1240 | if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) { | |
1241 | wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP | |
1242 | "PBC session overlap"); | |
1243 | wpas_notify_wps_event_pbc_overlap(wpa_s); | |
1244 | #ifdef CONFIG_P2P | |
1245 | if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT || | |
1246 | wpa_s->p2p_in_provisioning) { | |
1247 | eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb, | |
1248 | wpa_s, NULL); | |
1249 | return -1; | |
1250 | } | |
1251 | #endif /* CONFIG_P2P */ | |
1252 | ||
1253 | #ifdef CONFIG_WPS | |
1254 | wpas_wps_pbc_overlap(wpa_s); | |
1255 | wpas_wps_cancel(wpa_s); | |
1256 | #endif /* CONFIG_WPS */ | |
1257 | return -1; | |
1258 | } | |
1259 | ||
1260 | wpa_msg(wpa_s, MSG_DEBUG, | |
1261 | "Considering connect request: reassociate: %d selected: " | |
1262 | MACSTR " bssid: " MACSTR " pending: " MACSTR | |
1263 | " wpa_state: %s ssid=%p current_ssid=%p", | |
1264 | wpa_s->reassociate, MAC2STR(selected->bssid), | |
1265 | MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid), | |
1266 | wpa_supplicant_state_txt(wpa_s->wpa_state), | |
1267 | ssid, wpa_s->current_ssid); | |
1268 | ||
1269 | /* | |
1270 | * Do not trigger new association unless the BSSID has changed or if | |
1271 | * reassociation is requested. If we are in process of associating with | |
1272 | * the selected BSSID, do not trigger new attempt. | |
1273 | */ | |
1274 | if (wpa_s->reassociate || | |
1275 | (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 && | |
1276 | ((wpa_s->wpa_state != WPA_ASSOCIATING && | |
1277 | wpa_s->wpa_state != WPA_AUTHENTICATING) || | |
1278 | (!is_zero_ether_addr(wpa_s->pending_bssid) && | |
1279 | os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) != | |
1280 | 0) || | |
1281 | (is_zero_ether_addr(wpa_s->pending_bssid) && | |
1282 | ssid != wpa_s->current_ssid)))) { | |
1283 | if (wpa_supplicant_scard_init(wpa_s, ssid)) { | |
1284 | wpa_supplicant_req_new_scan(wpa_s, 10, 0); | |
1285 | return 0; | |
1286 | } | |
1287 | wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR, | |
1288 | MAC2STR(selected->bssid)); | |
1289 | wpa_supplicant_associate(wpa_s, selected, ssid); | |
1290 | } else { | |
1291 | wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to " | |
1292 | "connect with the selected AP"); | |
1293 | } | |
1294 | ||
1295 | return 0; | |
1296 | } | |
1297 | ||
1298 | ||
1299 | static struct wpa_ssid * | |
1300 | wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s) | |
1301 | { | |
1302 | int prio; | |
1303 | struct wpa_ssid *ssid; | |
1304 | ||
1305 | for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { | |
1306 | for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext) | |
1307 | { | |
1308 | if (wpas_network_disabled(wpa_s, ssid)) | |
1309 | continue; | |
1310 | if (ssid->mode == IEEE80211_MODE_IBSS || | |
1311 | ssid->mode == IEEE80211_MODE_AP || | |
1312 | ssid->mode == IEEE80211_MODE_MESH) | |
1313 | return ssid; | |
1314 | } | |
1315 | } | |
1316 | return NULL; | |
1317 | } | |
1318 | ||
1319 | ||
1320 | /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based | |
1321 | * on BSS added and BSS changed events */ | |
1322 | static void wpa_supplicant_rsn_preauth_scan_results( | |
1323 | struct wpa_supplicant *wpa_s) | |
1324 | { | |
1325 | struct wpa_bss *bss; | |
1326 | ||
1327 | if (rsn_preauth_scan_results(wpa_s->wpa) < 0) | |
1328 | return; | |
1329 | ||
1330 | dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { | |
1331 | const u8 *ssid, *rsn; | |
1332 | ||
1333 | ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID); | |
1334 | if (ssid == NULL) | |
1335 | continue; | |
1336 | ||
1337 | rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); | |
1338 | if (rsn == NULL) | |
1339 | continue; | |
1340 | ||
1341 | rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn); | |
1342 | } | |
1343 | ||
1344 | } | |
1345 | ||
1346 | ||
1347 | static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s, | |
1348 | struct wpa_bss *selected, | |
1349 | struct wpa_ssid *ssid) | |
1350 | { | |
1351 | struct wpa_bss *current_bss = NULL; | |
1352 | #ifndef CONFIG_NO_ROAMING | |
1353 | int min_diff; | |
1354 | int to_5ghz; | |
1355 | #endif /* CONFIG_NO_ROAMING */ | |
1356 | ||
1357 | if (wpa_s->reassociate) | |
1358 | return 1; /* explicit request to reassociate */ | |
1359 | if (wpa_s->wpa_state < WPA_ASSOCIATED) | |
1360 | return 1; /* we are not associated; continue */ | |
1361 | if (wpa_s->current_ssid == NULL) | |
1362 | return 1; /* unknown current SSID */ | |
1363 | if (wpa_s->current_ssid != ssid) | |
1364 | return 1; /* different network block */ | |
1365 | ||
1366 | if (wpas_driver_bss_selection(wpa_s)) | |
1367 | return 0; /* Driver-based roaming */ | |
1368 | ||
1369 | if (wpa_s->current_ssid->ssid) | |
1370 | current_bss = wpa_bss_get(wpa_s, wpa_s->bssid, | |
1371 | wpa_s->current_ssid->ssid, | |
1372 | wpa_s->current_ssid->ssid_len); | |
1373 | if (!current_bss) | |
1374 | current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid); | |
1375 | ||
1376 | if (!current_bss) | |
1377 | return 1; /* current BSS not seen in scan results */ | |
1378 | ||
1379 | if (current_bss == selected) | |
1380 | return 0; | |
1381 | ||
1382 | if (selected->last_update_idx > current_bss->last_update_idx) | |
1383 | return 1; /* current BSS not seen in the last scan */ | |
1384 | ||
1385 | #ifndef CONFIG_NO_ROAMING | |
1386 | wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation"); | |
1387 | wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR | |
1388 | " level=%d snr=%d est_throughput=%u", | |
1389 | MAC2STR(current_bss->bssid), current_bss->level, | |
1390 | current_bss->snr, current_bss->est_throughput); | |
1391 | wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR | |
1392 | " level=%d snr=%d est_throughput=%u", | |
1393 | MAC2STR(selected->bssid), selected->level, | |
1394 | selected->snr, selected->est_throughput); | |
1395 | ||
1396 | if (wpa_s->current_ssid->bssid_set && | |
1397 | os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) == | |
1398 | 0) { | |
1399 | wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS " | |
1400 | "has preferred BSSID"); | |
1401 | return 1; | |
1402 | } | |
1403 | ||
1404 | if (selected->est_throughput > current_bss->est_throughput + 5000) { | |
1405 | wpa_dbg(wpa_s, MSG_DEBUG, | |
1406 | "Allow reassociation - selected BSS has better estimated throughput"); | |
1407 | return 1; | |
1408 | } | |
1409 | ||
1410 | to_5ghz = selected->freq > 4000 && current_bss->freq < 4000; | |
1411 | ||
1412 | if (current_bss->level < 0 && | |
1413 | current_bss->level > selected->level + to_5ghz * 2) { | |
1414 | wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better " | |
1415 | "signal level"); | |
1416 | return 0; | |
1417 | } | |
1418 | ||
1419 | min_diff = 2; | |
1420 | if (current_bss->level < 0) { | |
1421 | if (current_bss->level < -85) | |
1422 | min_diff = 1; | |
1423 | else if (current_bss->level < -80) | |
1424 | min_diff = 2; | |
1425 | else if (current_bss->level < -75) | |
1426 | min_diff = 3; | |
1427 | else if (current_bss->level < -70) | |
1428 | min_diff = 4; | |
1429 | else | |
1430 | min_diff = 5; | |
1431 | } | |
1432 | if (to_5ghz) { | |
1433 | /* Make it easier to move to 5 GHz band */ | |
1434 | if (min_diff > 2) | |
1435 | min_diff -= 2; | |
1436 | else | |
1437 | min_diff = 0; | |
1438 | } | |
1439 | if (abs(current_bss->level - selected->level) < min_diff) { | |
1440 | wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference " | |
1441 | "in signal level"); | |
1442 | return 0; | |
1443 | } | |
1444 | ||
1445 | return 1; | |
1446 | #else /* CONFIG_NO_ROAMING */ | |
1447 | return 0; | |
1448 | #endif /* CONFIG_NO_ROAMING */ | |
1449 | } | |
1450 | ||
1451 | ||
1452 | /* Return != 0 if no scan results could be fetched or if scan results should not | |
1453 | * be shared with other virtual interfaces. */ | |
1454 | static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, | |
1455 | union wpa_event_data *data, | |
1456 | int own_request) | |
1457 | { | |
1458 | struct wpa_scan_results *scan_res = NULL; | |
1459 | int ret = 0; | |
1460 | int ap = 0; | |
1461 | #ifndef CONFIG_NO_RANDOM_POOL | |
1462 | size_t i, num; | |
1463 | #endif /* CONFIG_NO_RANDOM_POOL */ | |
1464 | ||
1465 | #ifdef CONFIG_AP | |
1466 | if (wpa_s->ap_iface) | |
1467 | ap = 1; | |
1468 | #endif /* CONFIG_AP */ | |
1469 | ||
1470 | wpa_supplicant_notify_scanning(wpa_s, 0); | |
1471 | ||
1472 | scan_res = wpa_supplicant_get_scan_results(wpa_s, | |
1473 | data ? &data->scan_info : | |
1474 | NULL, 1); | |
1475 | if (scan_res == NULL) { | |
1476 | if (wpa_s->conf->ap_scan == 2 || ap || | |
1477 | wpa_s->scan_res_handler == scan_only_handler) | |
1478 | return -1; | |
1479 | if (!own_request) | |
1480 | return -1; | |
1481 | if (data && data->scan_info.external_scan) | |
1482 | return -1; | |
1483 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try " | |
1484 | "scanning again"); | |
1485 | wpa_supplicant_req_new_scan(wpa_s, 1, 0); | |
1486 | ret = -1; | |
1487 | goto scan_work_done; | |
1488 | } | |
1489 | ||
1490 | #ifndef CONFIG_NO_RANDOM_POOL | |
1491 | num = scan_res->num; | |
1492 | if (num > 10) | |
1493 | num = 10; | |
1494 | for (i = 0; i < num; i++) { | |
1495 | u8 buf[5]; | |
1496 | struct wpa_scan_res *res = scan_res->res[i]; | |
1497 | buf[0] = res->bssid[5]; | |
1498 | buf[1] = res->qual & 0xff; | |
1499 | buf[2] = res->noise & 0xff; | |
1500 | buf[3] = res->level & 0xff; | |
1501 | buf[4] = res->tsf & 0xff; | |
1502 | random_add_randomness(buf, sizeof(buf)); | |
1503 | } | |
1504 | #endif /* CONFIG_NO_RANDOM_POOL */ | |
1505 | ||
1506 | if (own_request && wpa_s->scan_res_handler && | |
1507 | !(data && data->scan_info.external_scan)) { | |
1508 | void (*scan_res_handler)(struct wpa_supplicant *wpa_s, | |
1509 | struct wpa_scan_results *scan_res); | |
1510 | ||
1511 | scan_res_handler = wpa_s->scan_res_handler; | |
1512 | wpa_s->scan_res_handler = NULL; | |
1513 | scan_res_handler(wpa_s, scan_res); | |
1514 | ret = -2; | |
1515 | goto scan_work_done; | |
1516 | } | |
1517 | ||
1518 | if (ap) { | |
1519 | wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode"); | |
1520 | #ifdef CONFIG_AP | |
1521 | if (wpa_s->ap_iface->scan_cb) | |
1522 | wpa_s->ap_iface->scan_cb(wpa_s->ap_iface); | |
1523 | #endif /* CONFIG_AP */ | |
1524 | goto scan_work_done; | |
1525 | } | |
1526 | ||
1527 | wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)", | |
1528 | wpa_s->own_scan_running, | |
1529 | data ? data->scan_info.external_scan : 0); | |
1530 | if (wpa_s->last_scan_req == MANUAL_SCAN_REQ && | |
1531 | wpa_s->manual_scan_use_id && wpa_s->own_scan_running && | |
1532 | own_request && !(data && data->scan_info.external_scan)) { | |
1533 | wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u", | |
1534 | wpa_s->manual_scan_id); | |
1535 | wpa_s->manual_scan_use_id = 0; | |
1536 | } else { | |
1537 | wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS); | |
1538 | } | |
1539 | wpas_notify_scan_results(wpa_s); | |
1540 | ||
1541 | wpas_notify_scan_done(wpa_s, 1); | |
1542 | ||
1543 | if (data && data->scan_info.external_scan) { | |
1544 | wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection"); | |
1545 | wpa_scan_results_free(scan_res); | |
1546 | return 0; | |
1547 | } | |
1548 | ||
1549 | if (wnm_scan_process(wpa_s, 1) > 0) | |
1550 | goto scan_work_done; | |
1551 | ||
1552 | if (sme_proc_obss_scan(wpa_s) > 0) | |
1553 | goto scan_work_done; | |
1554 | ||
1555 | if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) | |
1556 | goto scan_work_done; | |
1557 | ||
1558 | if (autoscan_notify_scan(wpa_s, scan_res)) | |
1559 | goto scan_work_done; | |
1560 | ||
1561 | if (wpa_s->disconnected) { | |
1562 | wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); | |
1563 | goto scan_work_done; | |
1564 | } | |
1565 | ||
1566 | if (!wpas_driver_bss_selection(wpa_s) && | |
1567 | bgscan_notify_scan(wpa_s, scan_res) == 1) | |
1568 | goto scan_work_done; | |
1569 | ||
1570 | wpas_wps_update_ap_info(wpa_s, scan_res); | |
1571 | ||
1572 | if (wpa_s->wpa_state >= WPA_AUTHENTICATING && | |
1573 | wpa_s->wpa_state < WPA_COMPLETED) | |
1574 | goto scan_work_done; | |
1575 | ||
1576 | wpa_scan_results_free(scan_res); | |
1577 | ||
1578 | if (own_request && wpa_s->scan_work) { | |
1579 | struct wpa_radio_work *work = wpa_s->scan_work; | |
1580 | wpa_s->scan_work = NULL; | |
1581 | radio_work_done(work); | |
1582 | } | |
1583 | ||
1584 | return wpas_select_network_from_last_scan(wpa_s, 1, own_request); | |
1585 | ||
1586 | scan_work_done: | |
1587 | wpa_scan_results_free(scan_res); | |
1588 | if (own_request && wpa_s->scan_work) { | |
1589 | struct wpa_radio_work *work = wpa_s->scan_work; | |
1590 | wpa_s->scan_work = NULL; | |
1591 | radio_work_done(work); | |
1592 | } | |
1593 | return ret; | |
1594 | } | |
1595 | ||
1596 | ||
1597 | static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s, | |
1598 | int new_scan, int own_request) | |
1599 | { | |
1600 | struct wpa_bss *selected; | |
1601 | struct wpa_ssid *ssid = NULL; | |
1602 | int time_to_reenable = wpas_reenabled_network_time(wpa_s); | |
1603 | ||
1604 | if (time_to_reenable > 0) { | |
1605 | wpa_dbg(wpa_s, MSG_DEBUG, | |
1606 | "Postpone network selection by %d seconds since all networks are disabled", | |
1607 | time_to_reenable); | |
1608 | eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL); | |
1609 | eloop_register_timeout(time_to_reenable, 0, | |
1610 | wpas_network_reenabled, wpa_s, NULL); | |
1611 | return 0; | |
1612 | } | |
1613 | ||
1614 | if (wpa_s->p2p_mgmt) | |
1615 | return 0; /* no normal connection on p2p_mgmt interface */ | |
1616 | ||
1617 | selected = wpa_supplicant_pick_network(wpa_s, &ssid); | |
1618 | ||
1619 | if (selected) { | |
1620 | int skip; | |
1621 | skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid); | |
1622 | if (skip) { | |
1623 | if (new_scan) | |
1624 | wpa_supplicant_rsn_preauth_scan_results(wpa_s); | |
1625 | return 0; | |
1626 | } | |
1627 | ||
1628 | if (ssid != wpa_s->current_ssid && | |
1629 | wpa_s->wpa_state >= WPA_AUTHENTICATING) { | |
1630 | wpa_s->own_disconnect_req = 1; | |
1631 | wpa_supplicant_deauthenticate( | |
1632 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
1633 | } | |
1634 | ||
1635 | if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) { | |
1636 | wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed"); | |
1637 | return -1; | |
1638 | } | |
1639 | if (new_scan) | |
1640 | wpa_supplicant_rsn_preauth_scan_results(wpa_s); | |
1641 | /* | |
1642 | * Do not notify other virtual radios of scan results since we do not | |
1643 | * want them to start other associations at the same time. | |
1644 | */ | |
1645 | return 1; | |
1646 | } else { | |
1647 | #ifdef CONFIG_MESH | |
1648 | if (wpa_s->ifmsh) { | |
1649 | wpa_msg(wpa_s, MSG_INFO, | |
1650 | "Avoiding join because we already joined a mesh group"); | |
1651 | return 0; | |
1652 | } | |
1653 | #endif /* CONFIG_MESH */ | |
1654 | wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found"); | |
1655 | ssid = wpa_supplicant_pick_new_network(wpa_s); | |
1656 | if (ssid) { | |
1657 | wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network"); | |
1658 | wpa_supplicant_associate(wpa_s, NULL, ssid); | |
1659 | if (new_scan) | |
1660 | wpa_supplicant_rsn_preauth_scan_results(wpa_s); | |
1661 | } else if (own_request) { | |
1662 | /* | |
1663 | * No SSID found. If SCAN results are as a result of | |
1664 | * own scan request and not due to a scan request on | |
1665 | * another shared interface, try another scan. | |
1666 | */ | |
1667 | int timeout_sec = wpa_s->scan_interval; | |
1668 | int timeout_usec = 0; | |
1669 | #ifdef CONFIG_P2P | |
1670 | int res; | |
1671 | ||
1672 | res = wpas_p2p_scan_no_go_seen(wpa_s); | |
1673 | if (res == 2) | |
1674 | return 2; | |
1675 | if (res == 1) | |
1676 | return 0; | |
1677 | ||
1678 | if (wpa_s->p2p_in_provisioning || | |
1679 | wpa_s->show_group_started || | |
1680 | wpa_s->p2p_in_invitation) { | |
1681 | /* | |
1682 | * Use shorter wait during P2P Provisioning | |
1683 | * state and during P2P join-a-group operation | |
1684 | * to speed up group formation. | |
1685 | */ | |
1686 | timeout_sec = 0; | |
1687 | timeout_usec = 250000; | |
1688 | wpa_supplicant_req_new_scan(wpa_s, timeout_sec, | |
1689 | timeout_usec); | |
1690 | return 0; | |
1691 | } | |
1692 | #endif /* CONFIG_P2P */ | |
1693 | #ifdef CONFIG_INTERWORKING | |
1694 | if (wpa_s->conf->auto_interworking && | |
1695 | wpa_s->conf->interworking && | |
1696 | wpa_s->conf->cred) { | |
1697 | wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: " | |
1698 | "start ANQP fetch since no matching " | |
1699 | "networks found"); | |
1700 | wpa_s->network_select = 1; | |
1701 | wpa_s->auto_network_select = 1; | |
1702 | interworking_start_fetch_anqp(wpa_s); | |
1703 | return 1; | |
1704 | } | |
1705 | #endif /* CONFIG_INTERWORKING */ | |
1706 | #ifdef CONFIG_WPS | |
1707 | if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) { | |
1708 | wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing"); | |
1709 | timeout_sec = 0; | |
1710 | timeout_usec = 500000; | |
1711 | wpa_supplicant_req_new_scan(wpa_s, timeout_sec, | |
1712 | timeout_usec); | |
1713 | return 0; | |
1714 | } | |
1715 | #endif /* CONFIG_WPS */ | |
1716 | if (wpa_supplicant_req_sched_scan(wpa_s)) | |
1717 | wpa_supplicant_req_new_scan(wpa_s, timeout_sec, | |
1718 | timeout_usec); | |
1719 | ||
1720 | wpa_msg_ctrl(wpa_s, MSG_INFO, | |
1721 | WPA_EVENT_NETWORK_NOT_FOUND); | |
1722 | } | |
1723 | } | |
1724 | return 0; | |
1725 | } | |
1726 | ||
1727 | ||
1728 | static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, | |
1729 | union wpa_event_data *data) | |
1730 | { | |
1731 | struct wpa_supplicant *ifs; | |
1732 | int res; | |
1733 | ||
1734 | res = _wpa_supplicant_event_scan_results(wpa_s, data, 1); | |
1735 | if (res == 2) { | |
1736 | /* | |
1737 | * Interface may have been removed, so must not dereference | |
1738 | * wpa_s after this. | |
1739 | */ | |
1740 | return 1; | |
1741 | } | |
1742 | if (res != 0) { | |
1743 | /* | |
1744 | * If no scan results could be fetched, then no need to | |
1745 | * notify those interfaces that did not actually request | |
1746 | * this scan. Similarly, if scan results started a new operation on this | |
1747 | * interface, do not notify other interfaces to avoid concurrent | |
1748 | * operations during a connection attempt. | |
1749 | */ | |
1750 | return 0; | |
1751 | } | |
1752 | ||
1753 | /* | |
1754 | * Check other interfaces to see if they share the same radio. If | |
1755 | * so, they get updated with this same scan info. | |
1756 | */ | |
1757 | dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant, | |
1758 | radio_list) { | |
1759 | if (ifs != wpa_s) { | |
1760 | wpa_printf(MSG_DEBUG, "%s: Updating scan results from " | |
1761 | "sibling", ifs->ifname); | |
1762 | _wpa_supplicant_event_scan_results(ifs, data, 0); | |
1763 | } | |
1764 | } | |
1765 | ||
1766 | return 0; | |
1767 | } | |
1768 | ||
1769 | #endif /* CONFIG_NO_SCAN_PROCESSING */ | |
1770 | ||
1771 | ||
1772 | int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s) | |
1773 | { | |
1774 | #ifdef CONFIG_NO_SCAN_PROCESSING | |
1775 | return -1; | |
1776 | #else /* CONFIG_NO_SCAN_PROCESSING */ | |
1777 | struct os_reltime now; | |
1778 | ||
1779 | if (wpa_s->last_scan_res_used == 0) | |
1780 | return -1; | |
1781 | ||
1782 | os_get_reltime(&now); | |
1783 | if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) { | |
1784 | wpa_printf(MSG_DEBUG, "Fast associate: Old scan results"); | |
1785 | return -1; | |
1786 | } | |
1787 | ||
1788 | return wpas_select_network_from_last_scan(wpa_s, 0, 1); | |
1789 | #endif /* CONFIG_NO_SCAN_PROCESSING */ | |
1790 | } | |
1791 | ||
1792 | #ifdef CONFIG_WNM | |
1793 | ||
1794 | static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx) | |
1795 | { | |
1796 | struct wpa_supplicant *wpa_s = eloop_ctx; | |
1797 | ||
1798 | if (wpa_s->wpa_state < WPA_ASSOCIATED) | |
1799 | return; | |
1800 | ||
1801 | if (!wpa_s->no_keep_alive) { | |
1802 | wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR, | |
1803 | MAC2STR(wpa_s->bssid)); | |
1804 | /* TODO: could skip this if normal data traffic has been sent */ | |
1805 | /* TODO: Consider using some more appropriate data frame for | |
1806 | * this */ | |
1807 | if (wpa_s->l2) | |
1808 | l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800, | |
1809 | (u8 *) "", 0); | |
1810 | } | |
1811 | ||
1812 | #ifdef CONFIG_SME | |
1813 | if (wpa_s->sme.bss_max_idle_period) { | |
1814 | unsigned int msec; | |
1815 | msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */ | |
1816 | if (msec > 100) | |
1817 | msec -= 100; | |
1818 | eloop_register_timeout(msec / 1000, msec % 1000 * 1000, | |
1819 | wnm_bss_keep_alive, wpa_s, NULL); | |
1820 | } | |
1821 | #endif /* CONFIG_SME */ | |
1822 | } | |
1823 | ||
1824 | ||
1825 | static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s, | |
1826 | const u8 *ies, size_t ies_len) | |
1827 | { | |
1828 | struct ieee802_11_elems elems; | |
1829 | ||
1830 | if (ies == NULL) | |
1831 | return; | |
1832 | ||
1833 | if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) | |
1834 | return; | |
1835 | ||
1836 | #ifdef CONFIG_SME | |
1837 | if (elems.bss_max_idle_period) { | |
1838 | unsigned int msec; | |
1839 | wpa_s->sme.bss_max_idle_period = | |
1840 | WPA_GET_LE16(elems.bss_max_idle_period); | |
1841 | wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 " | |
1842 | "TU)%s", wpa_s->sme.bss_max_idle_period, | |
1843 | (elems.bss_max_idle_period[2] & 0x01) ? | |
1844 | " (protected keep-live required)" : ""); | |
1845 | if (wpa_s->sme.bss_max_idle_period == 0) | |
1846 | wpa_s->sme.bss_max_idle_period = 1; | |
1847 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) { | |
1848 | eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL); | |
1849 | /* msec times 1000 */ | |
1850 | msec = wpa_s->sme.bss_max_idle_period * 1024; | |
1851 | if (msec > 100) | |
1852 | msec -= 100; | |
1853 | eloop_register_timeout(msec / 1000, msec % 1000 * 1000, | |
1854 | wnm_bss_keep_alive, wpa_s, | |
1855 | NULL); | |
1856 | } | |
1857 | } | |
1858 | #endif /* CONFIG_SME */ | |
1859 | } | |
1860 | ||
1861 | #endif /* CONFIG_WNM */ | |
1862 | ||
1863 | ||
1864 | void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s) | |
1865 | { | |
1866 | #ifdef CONFIG_WNM | |
1867 | eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL); | |
1868 | #endif /* CONFIG_WNM */ | |
1869 | } | |
1870 | ||
1871 | ||
1872 | #ifdef CONFIG_INTERWORKING | |
1873 | ||
1874 | static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map, | |
1875 | size_t len) | |
1876 | { | |
1877 | int res; | |
1878 | ||
1879 | wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len); | |
1880 | res = wpa_drv_set_qos_map(wpa_s, qos_map, len); | |
1881 | if (res) { | |
1882 | wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver"); | |
1883 | } | |
1884 | ||
1885 | return res; | |
1886 | } | |
1887 | ||
1888 | ||
1889 | static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s, | |
1890 | const u8 *ies, size_t ies_len) | |
1891 | { | |
1892 | struct ieee802_11_elems elems; | |
1893 | ||
1894 | if (ies == NULL) | |
1895 | return; | |
1896 | ||
1897 | if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) | |
1898 | return; | |
1899 | ||
1900 | if (elems.qos_map_set) { | |
1901 | wpas_qos_map_set(wpa_s, elems.qos_map_set, | |
1902 | elems.qos_map_set_len); | |
1903 | } | |
1904 | } | |
1905 | ||
1906 | #endif /* CONFIG_INTERWORKING */ | |
1907 | ||
1908 | ||
1909 | #ifdef CONFIG_FST | |
1910 | static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s, | |
1911 | const u8 *ie, size_t ie_len) | |
1912 | { | |
1913 | struct mb_ies_info mb_ies; | |
1914 | ||
1915 | if (!ie || !ie_len || !wpa_s->fst) | |
1916 | return -ENOENT; | |
1917 | ||
1918 | os_memset(&mb_ies, 0, sizeof(mb_ies)); | |
1919 | ||
1920 | while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) { | |
1921 | size_t len; | |
1922 | ||
1923 | len = 2 + ie[1]; | |
1924 | if (len > ie_len) { | |
1925 | wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found", | |
1926 | ie, ie_len); | |
1927 | break; | |
1928 | } | |
1929 | ||
1930 | if (ie[0] == WLAN_EID_MULTI_BAND) { | |
1931 | wpa_printf(MSG_DEBUG, "MB IE of %u bytes found", | |
1932 | (unsigned int) len); | |
1933 | mb_ies.ies[mb_ies.nof_ies].ie = ie + 2; | |
1934 | mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2; | |
1935 | mb_ies.nof_ies++; | |
1936 | } | |
1937 | ||
1938 | ie_len -= len; | |
1939 | ie += len; | |
1940 | } | |
1941 | ||
1942 | if (mb_ies.nof_ies > 0) { | |
1943 | wpabuf_free(wpa_s->received_mb_ies); | |
1944 | wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies); | |
1945 | return 0; | |
1946 | } | |
1947 | ||
1948 | return -ENOENT; | |
1949 | } | |
1950 | #endif /* CONFIG_FST */ | |
1951 | ||
1952 | ||
1953 | static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s, | |
1954 | union wpa_event_data *data) | |
1955 | { | |
1956 | int l, len, found = 0, wpa_found, rsn_found; | |
1957 | const u8 *p; | |
1958 | #ifdef CONFIG_IEEE80211R | |
1959 | u8 bssid[ETH_ALEN]; | |
1960 | #endif /* CONFIG_IEEE80211R */ | |
1961 | ||
1962 | wpa_dbg(wpa_s, MSG_DEBUG, "Association info event"); | |
1963 | if (data->assoc_info.req_ies) | |
1964 | wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies, | |
1965 | data->assoc_info.req_ies_len); | |
1966 | if (data->assoc_info.resp_ies) { | |
1967 | wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies, | |
1968 | data->assoc_info.resp_ies_len); | |
1969 | #ifdef CONFIG_TDLS | |
1970 | wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies, | |
1971 | data->assoc_info.resp_ies_len); | |
1972 | #endif /* CONFIG_TDLS */ | |
1973 | #ifdef CONFIG_WNM | |
1974 | wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies, | |
1975 | data->assoc_info.resp_ies_len); | |
1976 | #endif /* CONFIG_WNM */ | |
1977 | #ifdef CONFIG_INTERWORKING | |
1978 | interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies, | |
1979 | data->assoc_info.resp_ies_len); | |
1980 | #endif /* CONFIG_INTERWORKING */ | |
1981 | } | |
1982 | if (data->assoc_info.beacon_ies) | |
1983 | wpa_hexdump(MSG_DEBUG, "beacon_ies", | |
1984 | data->assoc_info.beacon_ies, | |
1985 | data->assoc_info.beacon_ies_len); | |
1986 | if (data->assoc_info.freq) | |
1987 | wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz", | |
1988 | data->assoc_info.freq); | |
1989 | ||
1990 | p = data->assoc_info.req_ies; | |
1991 | l = data->assoc_info.req_ies_len; | |
1992 | ||
1993 | /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */ | |
1994 | while (p && l >= 2) { | |
1995 | len = p[1] + 2; | |
1996 | if (len > l) { | |
1997 | wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", | |
1998 | p, l); | |
1999 | break; | |
2000 | } | |
2001 | if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && | |
2002 | (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) || | |
2003 | (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 && | |
2004 | (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) || | |
2005 | (p[0] == WLAN_EID_RSN && p[1] >= 2)) { | |
2006 | if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len)) | |
2007 | break; | |
2008 | found = 1; | |
2009 | wpa_find_assoc_pmkid(wpa_s); | |
2010 | break; | |
2011 | } | |
2012 | l -= len; | |
2013 | p += len; | |
2014 | } | |
2015 | if (!found && data->assoc_info.req_ies) | |
2016 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); | |
2017 | ||
2018 | #ifdef CONFIG_IEEE80211R | |
2019 | #ifdef CONFIG_SME | |
2020 | if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) { | |
2021 | if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || | |
2022 | wpa_ft_validate_reassoc_resp(wpa_s->wpa, | |
2023 | data->assoc_info.resp_ies, | |
2024 | data->assoc_info.resp_ies_len, | |
2025 | bssid) < 0) { | |
2026 | wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " | |
2027 | "Reassociation Response failed"); | |
2028 | wpa_supplicant_deauthenticate( | |
2029 | wpa_s, WLAN_REASON_INVALID_IE); | |
2030 | return -1; | |
2031 | } | |
2032 | } | |
2033 | ||
2034 | p = data->assoc_info.resp_ies; | |
2035 | l = data->assoc_info.resp_ies_len; | |
2036 | ||
2037 | #ifdef CONFIG_WPS_STRICT | |
2038 | if (p && wpa_s->current_ssid && | |
2039 | wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) { | |
2040 | struct wpabuf *wps; | |
2041 | wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE); | |
2042 | if (wps == NULL) { | |
2043 | wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not " | |
2044 | "include WPS IE in (Re)Association Response"); | |
2045 | return -1; | |
2046 | } | |
2047 | ||
2048 | if (wps_validate_assoc_resp(wps) < 0) { | |
2049 | wpabuf_free(wps); | |
2050 | wpa_supplicant_deauthenticate( | |
2051 | wpa_s, WLAN_REASON_INVALID_IE); | |
2052 | return -1; | |
2053 | } | |
2054 | wpabuf_free(wps); | |
2055 | } | |
2056 | #endif /* CONFIG_WPS_STRICT */ | |
2057 | ||
2058 | /* Go through the IEs and make a copy of the MDIE, if present. */ | |
2059 | while (p && l >= 2) { | |
2060 | len = p[1] + 2; | |
2061 | if (len > l) { | |
2062 | wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", | |
2063 | p, l); | |
2064 | break; | |
2065 | } | |
2066 | if (p[0] == WLAN_EID_MOBILITY_DOMAIN && | |
2067 | p[1] >= MOBILITY_DOMAIN_ID_LEN) { | |
2068 | wpa_s->sme.ft_used = 1; | |
2069 | os_memcpy(wpa_s->sme.mobility_domain, p + 2, | |
2070 | MOBILITY_DOMAIN_ID_LEN); | |
2071 | break; | |
2072 | } | |
2073 | l -= len; | |
2074 | p += len; | |
2075 | } | |
2076 | #endif /* CONFIG_SME */ | |
2077 | ||
2078 | /* Process FT when SME is in the driver */ | |
2079 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && | |
2080 | wpa_ft_is_completed(wpa_s->wpa)) { | |
2081 | if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || | |
2082 | wpa_ft_validate_reassoc_resp(wpa_s->wpa, | |
2083 | data->assoc_info.resp_ies, | |
2084 | data->assoc_info.resp_ies_len, | |
2085 | bssid) < 0) { | |
2086 | wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " | |
2087 | "Reassociation Response failed"); | |
2088 | wpa_supplicant_deauthenticate( | |
2089 | wpa_s, WLAN_REASON_INVALID_IE); | |
2090 | return -1; | |
2091 | } | |
2092 | wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done"); | |
2093 | } | |
2094 | ||
2095 | wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies, | |
2096 | data->assoc_info.resp_ies_len); | |
2097 | #endif /* CONFIG_IEEE80211R */ | |
2098 | ||
2099 | /* WPA/RSN IE from Beacon/ProbeResp */ | |
2100 | p = data->assoc_info.beacon_ies; | |
2101 | l = data->assoc_info.beacon_ies_len; | |
2102 | ||
2103 | /* Go through the IEs and make a copy of the WPA/RSN IEs, if present. | |
2104 | */ | |
2105 | wpa_found = rsn_found = 0; | |
2106 | while (p && l >= 2) { | |
2107 | len = p[1] + 2; | |
2108 | if (len > l) { | |
2109 | wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies", | |
2110 | p, l); | |
2111 | break; | |
2112 | } | |
2113 | if (!wpa_found && | |
2114 | p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && | |
2115 | os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) { | |
2116 | wpa_found = 1; | |
2117 | wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len); | |
2118 | } | |
2119 | ||
2120 | if (!rsn_found && | |
2121 | p[0] == WLAN_EID_RSN && p[1] >= 2) { | |
2122 | rsn_found = 1; | |
2123 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len); | |
2124 | } | |
2125 | ||
2126 | l -= len; | |
2127 | p += len; | |
2128 | } | |
2129 | ||
2130 | if (!wpa_found && data->assoc_info.beacon_ies) | |
2131 | wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); | |
2132 | if (!rsn_found && data->assoc_info.beacon_ies) | |
2133 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); | |
2134 | if (wpa_found || rsn_found) | |
2135 | wpa_s->ap_ies_from_associnfo = 1; | |
2136 | ||
2137 | if (wpa_s->assoc_freq && data->assoc_info.freq && | |
2138 | wpa_s->assoc_freq != data->assoc_info.freq) { | |
2139 | wpa_printf(MSG_DEBUG, "Operating frequency changed from " | |
2140 | "%u to %u MHz", | |
2141 | wpa_s->assoc_freq, data->assoc_info.freq); | |
2142 | wpa_supplicant_update_scan_results(wpa_s); | |
2143 | } | |
2144 | ||
2145 | wpa_s->assoc_freq = data->assoc_info.freq; | |
2146 | ||
2147 | return 0; | |
2148 | } | |
2149 | ||
2150 | ||
2151 | static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s) | |
2152 | { | |
2153 | const u8 *bss_wpa = NULL, *bss_rsn = NULL; | |
2154 | ||
2155 | if (!wpa_s->current_bss || !wpa_s->current_ssid) | |
2156 | return -1; | |
2157 | ||
2158 | if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt)) | |
2159 | return 0; | |
2160 | ||
2161 | bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss, | |
2162 | WPA_IE_VENDOR_TYPE); | |
2163 | bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN); | |
2164 | ||
2165 | if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, | |
2166 | bss_wpa ? 2 + bss_wpa[1] : 0) || | |
2167 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, | |
2168 | bss_rsn ? 2 + bss_rsn[1] : 0)) | |
2169 | return -1; | |
2170 | ||
2171 | return 0; | |
2172 | } | |
2173 | ||
2174 | ||
2175 | static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s, | |
2176 | union wpa_event_data *data) | |
2177 | { | |
2178 | #ifdef CONFIG_FST | |
2179 | struct assoc_info *ai = data ? &data->assoc_info : NULL; | |
2180 | struct wpa_bss *bss = wpa_s->current_bss; | |
2181 | const u8 *ieprb, *iebcn; | |
2182 | ||
2183 | wpabuf_free(wpa_s->received_mb_ies); | |
2184 | wpa_s->received_mb_ies = NULL; | |
2185 | ||
2186 | if (ai && | |
2187 | !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) { | |
2188 | wpa_printf(MSG_DEBUG, | |
2189 | "FST: MB IEs updated from Association Response frame"); | |
2190 | return; | |
2191 | } | |
2192 | ||
2193 | if (ai && | |
2194 | !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) { | |
2195 | wpa_printf(MSG_DEBUG, | |
2196 | "FST: MB IEs updated from association event Beacon IEs"); | |
2197 | return; | |
2198 | } | |
2199 | ||
2200 | if (!bss) | |
2201 | return; | |
2202 | ||
2203 | ieprb = (const u8 *) (bss + 1); | |
2204 | iebcn = ieprb + bss->ie_len; | |
2205 | ||
2206 | if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len)) | |
2207 | wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE"); | |
2208 | else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len)) | |
2209 | wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE"); | |
2210 | #endif /* CONFIG_FST */ | |
2211 | } | |
2212 | ||
2213 | ||
2214 | static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s, | |
2215 | union wpa_event_data *data) | |
2216 | { | |
2217 | u8 bssid[ETH_ALEN]; | |
2218 | int ft_completed; | |
2219 | int new_bss = 0; | |
2220 | ||
2221 | #ifdef CONFIG_AP | |
2222 | if (wpa_s->ap_iface) { | |
2223 | if (!data) | |
2224 | return; | |
2225 | hostapd_notif_assoc(wpa_s->ap_iface->bss[0], | |
2226 | data->assoc_info.addr, | |
2227 | data->assoc_info.req_ies, | |
2228 | data->assoc_info.req_ies_len, | |
2229 | data->assoc_info.reassoc); | |
2230 | return; | |
2231 | } | |
2232 | #endif /* CONFIG_AP */ | |
2233 | ||
2234 | eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL); | |
2235 | ||
2236 | ft_completed = wpa_ft_is_completed(wpa_s->wpa); | |
2237 | if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0) | |
2238 | return; | |
2239 | ||
2240 | if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { | |
2241 | wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID"); | |
2242 | wpa_supplicant_deauthenticate( | |
2243 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
2244 | return; | |
2245 | } | |
2246 | ||
2247 | wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED); | |
2248 | if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) { | |
2249 | wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID=" | |
2250 | MACSTR, MAC2STR(bssid)); | |
2251 | new_bss = 1; | |
2252 | random_add_randomness(bssid, ETH_ALEN); | |
2253 | os_memcpy(wpa_s->bssid, bssid, ETH_ALEN); | |
2254 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); | |
2255 | wpas_notify_bssid_changed(wpa_s); | |
2256 | ||
2257 | if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) { | |
2258 | wpa_clear_keys(wpa_s, bssid); | |
2259 | } | |
2260 | if (wpa_supplicant_select_config(wpa_s) < 0) { | |
2261 | wpa_supplicant_deauthenticate( | |
2262 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
2263 | return; | |
2264 | } | |
2265 | } | |
2266 | ||
2267 | if (wpa_s->conf->ap_scan == 1 && | |
2268 | wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) { | |
2269 | if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss) | |
2270 | wpa_msg(wpa_s, MSG_WARNING, | |
2271 | "WPA/RSN IEs not updated"); | |
2272 | } | |
2273 | ||
2274 | wpas_fst_update_mb_assoc(wpa_s, data); | |
2275 | ||
2276 | #ifdef CONFIG_SME | |
2277 | os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN); | |
2278 | wpa_s->sme.prev_bssid_set = 1; | |
2279 | wpa_s->sme.last_unprot_disconnect.sec = 0; | |
2280 | #endif /* CONFIG_SME */ | |
2281 | ||
2282 | wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid)); | |
2283 | if (wpa_s->current_ssid) { | |
2284 | /* When using scanning (ap_scan=1), SIM PC/SC interface can be | |
2285 | * initialized before association, but for other modes, | |
2286 | * initialize PC/SC here, if the current configuration needs | |
2287 | * smartcard or SIM/USIM. */ | |
2288 | wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid); | |
2289 | } | |
2290 | wpa_sm_notify_assoc(wpa_s->wpa, bssid); | |
2291 | if (wpa_s->l2) | |
2292 | l2_packet_notify_auth_start(wpa_s->l2); | |
2293 | ||
2294 | /* | |
2295 | * Set portEnabled first to FALSE in order to get EAP state machine out | |
2296 | * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE | |
2297 | * state machine may transit to AUTHENTICATING state based on obsolete | |
2298 | * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to | |
2299 | * AUTHENTICATED without ever giving chance to EAP state machine to | |
2300 | * reset the state. | |
2301 | */ | |
2302 | if (!ft_completed) { | |
2303 | eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); | |
2304 | eapol_sm_notify_portValid(wpa_s->eapol, FALSE); | |
2305 | } | |
2306 | if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed) | |
2307 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); | |
2308 | /* 802.1X::portControl = Auto */ | |
2309 | eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE); | |
2310 | wpa_s->eapol_received = 0; | |
2311 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || | |
2312 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE || | |
2313 | (wpa_s->current_ssid && | |
2314 | wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) { | |
2315 | if (wpa_s->current_ssid && | |
2316 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE && | |
2317 | (wpa_s->drv_flags & | |
2318 | WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) { | |
2319 | /* | |
2320 | * Set the key after having received joined-IBSS event | |
2321 | * from the driver. | |
2322 | */ | |
2323 | wpa_supplicant_set_wpa_none_key(wpa_s, | |
2324 | wpa_s->current_ssid); | |
2325 | } | |
2326 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
2327 | wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); | |
2328 | } else if (!ft_completed) { | |
2329 | /* Timeout for receiving the first EAPOL packet */ | |
2330 | wpa_supplicant_req_auth_timeout(wpa_s, 10, 0); | |
2331 | } | |
2332 | wpa_supplicant_cancel_scan(wpa_s); | |
2333 | ||
2334 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && | |
2335 | wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { | |
2336 | /* | |
2337 | * We are done; the driver will take care of RSN 4-way | |
2338 | * handshake. | |
2339 | */ | |
2340 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
2341 | wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); | |
2342 | eapol_sm_notify_portValid(wpa_s->eapol, TRUE); | |
2343 | eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); | |
2344 | } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && | |
2345 | wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { | |
2346 | /* | |
2347 | * The driver will take care of RSN 4-way handshake, so we need | |
2348 | * to allow EAPOL supplicant to complete its work without | |
2349 | * waiting for WPA supplicant. | |
2350 | */ | |
2351 | eapol_sm_notify_portValid(wpa_s->eapol, TRUE); | |
2352 | } else if (ft_completed) { | |
2353 | /* | |
2354 | * FT protocol completed - make sure EAPOL state machine ends | |
2355 | * up in authenticated. | |
2356 | */ | |
2357 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
2358 | wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); | |
2359 | eapol_sm_notify_portValid(wpa_s->eapol, TRUE); | |
2360 | eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); | |
2361 | } | |
2362 | ||
2363 | wpa_s->last_eapol_matches_bssid = 0; | |
2364 | ||
2365 | if (wpa_s->pending_eapol_rx) { | |
2366 | struct os_reltime now, age; | |
2367 | os_get_reltime(&now); | |
2368 | os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age); | |
2369 | if (age.sec == 0 && age.usec < 100000 && | |
2370 | os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) == | |
2371 | 0) { | |
2372 | wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL " | |
2373 | "frame that was received just before " | |
2374 | "association notification"); | |
2375 | wpa_supplicant_rx_eapol( | |
2376 | wpa_s, wpa_s->pending_eapol_rx_src, | |
2377 | wpabuf_head(wpa_s->pending_eapol_rx), | |
2378 | wpabuf_len(wpa_s->pending_eapol_rx)); | |
2379 | } | |
2380 | wpabuf_free(wpa_s->pending_eapol_rx); | |
2381 | wpa_s->pending_eapol_rx = NULL; | |
2382 | } | |
2383 | ||
2384 | if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || | |
2385 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) && | |
2386 | wpa_s->current_ssid && | |
2387 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) { | |
2388 | /* Set static WEP keys again */ | |
2389 | wpa_set_wep_keys(wpa_s, wpa_s->current_ssid); | |
2390 | } | |
2391 | ||
2392 | #ifdef CONFIG_IBSS_RSN | |
2393 | if (wpa_s->current_ssid && | |
2394 | wpa_s->current_ssid->mode == WPAS_MODE_IBSS && | |
2395 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && | |
2396 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE && | |
2397 | wpa_s->ibss_rsn == NULL) { | |
2398 | wpa_s->ibss_rsn = ibss_rsn_init(wpa_s); | |
2399 | if (!wpa_s->ibss_rsn) { | |
2400 | wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN"); | |
2401 | wpa_supplicant_deauthenticate( | |
2402 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
2403 | return; | |
2404 | } | |
2405 | ||
2406 | ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk); | |
2407 | } | |
2408 | #endif /* CONFIG_IBSS_RSN */ | |
2409 | ||
2410 | wpas_wps_notify_assoc(wpa_s, bssid); | |
2411 | ||
2412 | if (data) { | |
2413 | wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies, | |
2414 | data->assoc_info.resp_ies_len, | |
2415 | &data->assoc_info.wmm_params); | |
2416 | ||
2417 | if (wpa_s->reassoc_same_bss) | |
2418 | wmm_ac_restore_tspecs(wpa_s); | |
2419 | } | |
2420 | } | |
2421 | ||
2422 | ||
2423 | static int disconnect_reason_recoverable(u16 reason_code) | |
2424 | { | |
2425 | return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY || | |
2426 | reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA || | |
2427 | reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA; | |
2428 | } | |
2429 | ||
2430 | ||
2431 | static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s, | |
2432 | u16 reason_code, | |
2433 | int locally_generated) | |
2434 | { | |
2435 | const u8 *bssid; | |
2436 | ||
2437 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
2438 | /* | |
2439 | * At least Host AP driver and a Prism3 card seemed to be | |
2440 | * generating streams of disconnected events when configuring | |
2441 | * IBSS for WPA-None. Ignore them for now. | |
2442 | */ | |
2443 | return; | |
2444 | } | |
2445 | ||
2446 | bssid = wpa_s->bssid; | |
2447 | if (is_zero_ether_addr(bssid)) | |
2448 | bssid = wpa_s->pending_bssid; | |
2449 | ||
2450 | if (!is_zero_ether_addr(bssid) || | |
2451 | wpa_s->wpa_state >= WPA_AUTHENTICATING) { | |
2452 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR | |
2453 | " reason=%d%s", | |
2454 | MAC2STR(bssid), reason_code, | |
2455 | locally_generated ? " locally_generated=1" : ""); | |
2456 | } | |
2457 | } | |
2458 | ||
2459 | ||
2460 | static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code, | |
2461 | int locally_generated) | |
2462 | { | |
2463 | if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE || | |
2464 | !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) | |
2465 | return 0; /* Not in 4-way handshake with PSK */ | |
2466 | ||
2467 | /* | |
2468 | * It looks like connection was lost while trying to go through PSK | |
2469 | * 4-way handshake. Filter out known disconnection cases that are caused | |
2470 | * by something else than PSK mismatch to avoid confusing reports. | |
2471 | */ | |
2472 | ||
2473 | if (locally_generated) { | |
2474 | if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS) | |
2475 | return 0; | |
2476 | } | |
2477 | ||
2478 | return 1; | |
2479 | } | |
2480 | ||
2481 | ||
2482 | static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s, | |
2483 | u16 reason_code, | |
2484 | int locally_generated) | |
2485 | { | |
2486 | const u8 *bssid; | |
2487 | int authenticating; | |
2488 | u8 prev_pending_bssid[ETH_ALEN]; | |
2489 | struct wpa_bss *fast_reconnect = NULL; | |
2490 | struct wpa_ssid *fast_reconnect_ssid = NULL; | |
2491 | struct wpa_ssid *last_ssid; | |
2492 | ||
2493 | authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING; | |
2494 | os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN); | |
2495 | ||
2496 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
2497 | /* | |
2498 | * At least Host AP driver and a Prism3 card seemed to be | |
2499 | * generating streams of disconnected events when configuring | |
2500 | * IBSS for WPA-None. Ignore them for now. | |
2501 | */ | |
2502 | wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in " | |
2503 | "IBSS/WPA-None mode"); | |
2504 | return; | |
2505 | } | |
2506 | ||
2507 | if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) { | |
2508 | wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - " | |
2509 | "pre-shared key may be incorrect"); | |
2510 | if (wpas_p2p_4way_hs_failed(wpa_s) > 0) | |
2511 | return; /* P2P group removed */ | |
2512 | wpas_auth_failed(wpa_s, "WRONG_KEY"); | |
2513 | } | |
2514 | if (!wpa_s->disconnected && | |
2515 | (!wpa_s->auto_reconnect_disabled || | |
2516 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPS || | |
2517 | wpas_wps_searching(wpa_s) || | |
2518 | wpas_wps_reenable_networks_pending(wpa_s))) { | |
2519 | wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to " | |
2520 | "reconnect (wps=%d/%d wpa_state=%d)", | |
2521 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPS, | |
2522 | wpas_wps_searching(wpa_s), | |
2523 | wpa_s->wpa_state); | |
2524 | if (wpa_s->wpa_state == WPA_COMPLETED && | |
2525 | wpa_s->current_ssid && | |
2526 | wpa_s->current_ssid->mode == WPAS_MODE_INFRA && | |
2527 | !locally_generated && | |
2528 | disconnect_reason_recoverable(reason_code)) { | |
2529 | /* | |
2530 | * It looks like the AP has dropped association with | |
2531 | * us, but could allow us to get back in. Try to | |
2532 | * reconnect to the same BSS without full scan to save | |
2533 | * time for some common cases. | |
2534 | */ | |
2535 | fast_reconnect = wpa_s->current_bss; | |
2536 | fast_reconnect_ssid = wpa_s->current_ssid; | |
2537 | } else if (wpa_s->wpa_state >= WPA_ASSOCIATING) | |
2538 | wpa_supplicant_req_scan(wpa_s, 0, 100000); | |
2539 | else | |
2540 | wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new " | |
2541 | "immediate scan"); | |
2542 | } else { | |
2543 | wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not " | |
2544 | "try to re-connect"); | |
2545 | wpa_s->reassociate = 0; | |
2546 | wpa_s->disconnected = 1; | |
2547 | if (!wpa_s->pno) | |
2548 | wpa_supplicant_cancel_sched_scan(wpa_s); | |
2549 | } | |
2550 | bssid = wpa_s->bssid; | |
2551 | if (is_zero_ether_addr(bssid)) | |
2552 | bssid = wpa_s->pending_bssid; | |
2553 | if (wpa_s->wpa_state >= WPA_AUTHENTICATING) | |
2554 | wpas_connection_failed(wpa_s, bssid); | |
2555 | wpa_sm_notify_disassoc(wpa_s->wpa); | |
2556 | if (locally_generated) | |
2557 | wpa_s->disconnect_reason = -reason_code; | |
2558 | else | |
2559 | wpa_s->disconnect_reason = reason_code; | |
2560 | wpas_notify_disconnect_reason(wpa_s); | |
2561 | if (wpa_supplicant_dynamic_keys(wpa_s)) { | |
2562 | wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys"); | |
2563 | wpa_clear_keys(wpa_s, wpa_s->bssid); | |
2564 | } | |
2565 | last_ssid = wpa_s->current_ssid; | |
2566 | wpa_supplicant_mark_disassoc(wpa_s); | |
2567 | ||
2568 | if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) { | |
2569 | sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid); | |
2570 | wpa_s->current_ssid = last_ssid; | |
2571 | } | |
2572 | ||
2573 | if (fast_reconnect && | |
2574 | !wpas_network_disabled(wpa_s, fast_reconnect_ssid) && | |
2575 | !disallowed_bssid(wpa_s, fast_reconnect->bssid) && | |
2576 | !disallowed_ssid(wpa_s, fast_reconnect->ssid, | |
2577 | fast_reconnect->ssid_len) && | |
2578 | !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) && | |
2579 | !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect->bssid)) { | |
2580 | #ifndef CONFIG_NO_SCAN_PROCESSING | |
2581 | wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS"); | |
2582 | if (wpa_supplicant_connect(wpa_s, fast_reconnect, | |
2583 | fast_reconnect_ssid) < 0) { | |
2584 | /* Recover through full scan */ | |
2585 | wpa_supplicant_req_scan(wpa_s, 0, 100000); | |
2586 | } | |
2587 | #endif /* CONFIG_NO_SCAN_PROCESSING */ | |
2588 | } else if (fast_reconnect) { | |
2589 | /* | |
2590 | * Could not reconnect to the same BSS due to network being | |
2591 | * disabled. Use a new scan to match the alternative behavior | |
2592 | * above, i.e., to continue automatic reconnection attempt in a | |
2593 | * way that enforces disabled network rules. | |
2594 | */ | |
2595 | wpa_supplicant_req_scan(wpa_s, 0, 100000); | |
2596 | } | |
2597 | } | |
2598 | ||
2599 | ||
2600 | #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT | |
2601 | void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx) | |
2602 | { | |
2603 | struct wpa_supplicant *wpa_s = eloop_ctx; | |
2604 | ||
2605 | if (!wpa_s->pending_mic_error_report) | |
2606 | return; | |
2607 | ||
2608 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report"); | |
2609 | wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise); | |
2610 | wpa_s->pending_mic_error_report = 0; | |
2611 | } | |
2612 | #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ | |
2613 | ||
2614 | ||
2615 | static void | |
2616 | wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s, | |
2617 | union wpa_event_data *data) | |
2618 | { | |
2619 | int pairwise; | |
2620 | struct os_reltime t; | |
2621 | ||
2622 | wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected"); | |
2623 | pairwise = (data && data->michael_mic_failure.unicast); | |
2624 | os_get_reltime(&t); | |
2625 | if ((wpa_s->last_michael_mic_error.sec && | |
2626 | !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) || | |
2627 | wpa_s->pending_mic_error_report) { | |
2628 | if (wpa_s->pending_mic_error_report) { | |
2629 | /* | |
2630 | * Send the pending MIC error report immediately since | |
2631 | * we are going to start countermeasures and AP better | |
2632 | * do the same. | |
2633 | */ | |
2634 | wpa_sm_key_request(wpa_s->wpa, 1, | |
2635 | wpa_s->pending_mic_error_pairwise); | |
2636 | } | |
2637 | ||
2638 | /* Send the new MIC error report immediately since we are going | |
2639 | * to start countermeasures and AP better do the same. | |
2640 | */ | |
2641 | wpa_sm_key_request(wpa_s->wpa, 1, pairwise); | |
2642 | ||
2643 | /* initialize countermeasures */ | |
2644 | wpa_s->countermeasures = 1; | |
2645 | ||
2646 | wpa_blacklist_add(wpa_s, wpa_s->bssid); | |
2647 | ||
2648 | wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started"); | |
2649 | ||
2650 | /* | |
2651 | * Need to wait for completion of request frame. We do not get | |
2652 | * any callback for the message completion, so just wait a | |
2653 | * short while and hope for the best. */ | |
2654 | os_sleep(0, 10000); | |
2655 | ||
2656 | wpa_drv_set_countermeasures(wpa_s, 1); | |
2657 | wpa_supplicant_deauthenticate(wpa_s, | |
2658 | WLAN_REASON_MICHAEL_MIC_FAILURE); | |
2659 | eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, | |
2660 | wpa_s, NULL); | |
2661 | eloop_register_timeout(60, 0, | |
2662 | wpa_supplicant_stop_countermeasures, | |
2663 | wpa_s, NULL); | |
2664 | /* TODO: mark the AP rejected for 60 second. STA is | |
2665 | * allowed to associate with another AP.. */ | |
2666 | } else { | |
2667 | #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT | |
2668 | if (wpa_s->mic_errors_seen) { | |
2669 | /* | |
2670 | * Reduce the effectiveness of Michael MIC error | |
2671 | * reports as a means for attacking against TKIP if | |
2672 | * more than one MIC failure is noticed with the same | |
2673 | * PTK. We delay the transmission of the reports by a | |
2674 | * random time between 0 and 60 seconds in order to | |
2675 | * force the attacker wait 60 seconds before getting | |
2676 | * the information on whether a frame resulted in a MIC | |
2677 | * failure. | |
2678 | */ | |
2679 | u8 rval[4]; | |
2680 | int sec; | |
2681 | ||
2682 | if (os_get_random(rval, sizeof(rval)) < 0) | |
2683 | sec = os_random() % 60; | |
2684 | else | |
2685 | sec = WPA_GET_BE32(rval) % 60; | |
2686 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error " | |
2687 | "report %d seconds", sec); | |
2688 | wpa_s->pending_mic_error_report = 1; | |
2689 | wpa_s->pending_mic_error_pairwise = pairwise; | |
2690 | eloop_cancel_timeout( | |
2691 | wpa_supplicant_delayed_mic_error_report, | |
2692 | wpa_s, NULL); | |
2693 | eloop_register_timeout( | |
2694 | sec, os_random() % 1000000, | |
2695 | wpa_supplicant_delayed_mic_error_report, | |
2696 | wpa_s, NULL); | |
2697 | } else { | |
2698 | wpa_sm_key_request(wpa_s->wpa, 1, pairwise); | |
2699 | } | |
2700 | #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */ | |
2701 | wpa_sm_key_request(wpa_s->wpa, 1, pairwise); | |
2702 | #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ | |
2703 | } | |
2704 | wpa_s->last_michael_mic_error = t; | |
2705 | wpa_s->mic_errors_seen++; | |
2706 | } | |
2707 | ||
2708 | ||
2709 | #ifdef CONFIG_TERMINATE_ONLASTIF | |
2710 | static int any_interfaces(struct wpa_supplicant *head) | |
2711 | { | |
2712 | struct wpa_supplicant *wpa_s; | |
2713 | ||
2714 | for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next) | |
2715 | if (!wpa_s->interface_removed) | |
2716 | return 1; | |
2717 | return 0; | |
2718 | } | |
2719 | #endif /* CONFIG_TERMINATE_ONLASTIF */ | |
2720 | ||
2721 | ||
2722 | static void | |
2723 | wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s, | |
2724 | union wpa_event_data *data) | |
2725 | { | |
2726 | if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0) | |
2727 | return; | |
2728 | ||
2729 | switch (data->interface_status.ievent) { | |
2730 | case EVENT_INTERFACE_ADDED: | |
2731 | if (!wpa_s->interface_removed) | |
2732 | break; | |
2733 | wpa_s->interface_removed = 0; | |
2734 | wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added"); | |
2735 | if (wpa_supplicant_driver_init(wpa_s) < 0) { | |
2736 | wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the " | |
2737 | "driver after interface was added"); | |
2738 | } | |
2739 | ||
2740 | #ifdef CONFIG_P2P | |
2741 | if (!wpa_s->global->p2p && | |
2742 | !wpa_s->global->p2p_disabled && | |
2743 | !wpa_s->conf->p2p_disabled && | |
2744 | (wpa_s->drv_flags & | |
2745 | WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && | |
2746 | wpas_p2p_add_p2pdev_interface( | |
2747 | wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) { | |
2748 | wpa_printf(MSG_INFO, | |
2749 | "P2P: Failed to enable P2P Device interface"); | |
2750 | /* Try to continue without. P2P will be disabled. */ | |
2751 | } | |
2752 | #endif /* CONFIG_P2P */ | |
2753 | ||
2754 | break; | |
2755 | case EVENT_INTERFACE_REMOVED: | |
2756 | wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed"); | |
2757 | wpa_s->interface_removed = 1; | |
2758 | wpa_supplicant_mark_disassoc(wpa_s); | |
2759 | wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); | |
2760 | l2_packet_deinit(wpa_s->l2); | |
2761 | wpa_s->l2 = NULL; | |
2762 | ||
2763 | #ifdef CONFIG_P2P | |
2764 | if (wpa_s->global->p2p && | |
2765 | wpa_s->global->p2p_init_wpa_s->parent == wpa_s && | |
2766 | (wpa_s->drv_flags & | |
2767 | WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) { | |
2768 | wpa_dbg(wpa_s, MSG_DEBUG, | |
2769 | "Removing P2P Device interface"); | |
2770 | wpa_supplicant_remove_iface( | |
2771 | wpa_s->global, wpa_s->global->p2p_init_wpa_s, | |
2772 | 0); | |
2773 | wpa_s->global->p2p_init_wpa_s = NULL; | |
2774 | } | |
2775 | #endif /* CONFIG_P2P */ | |
2776 | ||
2777 | #ifdef CONFIG_MATCH_IFACE | |
2778 | if (wpa_s->matched) { | |
2779 | wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0); | |
2780 | break; | |
2781 | } | |
2782 | #endif /* CONFIG_MATCH_IFACE */ | |
2783 | ||
2784 | #ifdef CONFIG_TERMINATE_ONLASTIF | |
2785 | /* check if last interface */ | |
2786 | if (!any_interfaces(wpa_s->global->ifaces)) | |
2787 | eloop_terminate(); | |
2788 | #endif /* CONFIG_TERMINATE_ONLASTIF */ | |
2789 | break; | |
2790 | } | |
2791 | } | |
2792 | ||
2793 | ||
2794 | #ifdef CONFIG_PEERKEY | |
2795 | static void | |
2796 | wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s, | |
2797 | union wpa_event_data *data) | |
2798 | { | |
2799 | if (data == NULL) | |
2800 | return; | |
2801 | wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer); | |
2802 | } | |
2803 | #endif /* CONFIG_PEERKEY */ | |
2804 | ||
2805 | ||
2806 | #ifdef CONFIG_TDLS | |
2807 | static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s, | |
2808 | union wpa_event_data *data) | |
2809 | { | |
2810 | if (data == NULL) | |
2811 | return; | |
2812 | switch (data->tdls.oper) { | |
2813 | case TDLS_REQUEST_SETUP: | |
2814 | wpa_tdls_remove(wpa_s->wpa, data->tdls.peer); | |
2815 | if (wpa_tdls_is_external_setup(wpa_s->wpa)) | |
2816 | wpa_tdls_start(wpa_s->wpa, data->tdls.peer); | |
2817 | else | |
2818 | wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer); | |
2819 | break; | |
2820 | case TDLS_REQUEST_TEARDOWN: | |
2821 | if (wpa_tdls_is_external_setup(wpa_s->wpa)) | |
2822 | wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer, | |
2823 | data->tdls.reason_code); | |
2824 | else | |
2825 | wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN, | |
2826 | data->tdls.peer); | |
2827 | break; | |
2828 | case TDLS_REQUEST_DISCOVER: | |
2829 | wpa_tdls_send_discovery_request(wpa_s->wpa, | |
2830 | data->tdls.peer); | |
2831 | break; | |
2832 | } | |
2833 | } | |
2834 | #endif /* CONFIG_TDLS */ | |
2835 | ||
2836 | ||
2837 | #ifdef CONFIG_WNM | |
2838 | static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s, | |
2839 | union wpa_event_data *data) | |
2840 | { | |
2841 | if (data == NULL) | |
2842 | return; | |
2843 | switch (data->wnm.oper) { | |
2844 | case WNM_OPER_SLEEP: | |
2845 | wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request " | |
2846 | "(action=%d, intval=%d)", | |
2847 | data->wnm.sleep_action, data->wnm.sleep_intval); | |
2848 | ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action, | |
2849 | data->wnm.sleep_intval, NULL); | |
2850 | break; | |
2851 | } | |
2852 | } | |
2853 | #endif /* CONFIG_WNM */ | |
2854 | ||
2855 | ||
2856 | #ifdef CONFIG_IEEE80211R | |
2857 | static void | |
2858 | wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s, | |
2859 | union wpa_event_data *data) | |
2860 | { | |
2861 | if (data == NULL) | |
2862 | return; | |
2863 | ||
2864 | if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies, | |
2865 | data->ft_ies.ies_len, | |
2866 | data->ft_ies.ft_action, | |
2867 | data->ft_ies.target_ap, | |
2868 | data->ft_ies.ric_ies, | |
2869 | data->ft_ies.ric_ies_len) < 0) { | |
2870 | /* TODO: prevent MLME/driver from trying to associate? */ | |
2871 | } | |
2872 | } | |
2873 | #endif /* CONFIG_IEEE80211R */ | |
2874 | ||
2875 | ||
2876 | #ifdef CONFIG_IBSS_RSN | |
2877 | static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s, | |
2878 | union wpa_event_data *data) | |
2879 | { | |
2880 | struct wpa_ssid *ssid; | |
2881 | if (wpa_s->wpa_state < WPA_ASSOCIATED) | |
2882 | return; | |
2883 | if (data == NULL) | |
2884 | return; | |
2885 | ssid = wpa_s->current_ssid; | |
2886 | if (ssid == NULL) | |
2887 | return; | |
2888 | if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt)) | |
2889 | return; | |
2890 | ||
2891 | ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer); | |
2892 | } | |
2893 | ||
2894 | ||
2895 | static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s, | |
2896 | union wpa_event_data *data) | |
2897 | { | |
2898 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
2899 | ||
2900 | if (ssid == NULL) | |
2901 | return; | |
2902 | ||
2903 | /* check if the ssid is correctly configured as IBSS/RSN */ | |
2904 | if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt)) | |
2905 | return; | |
2906 | ||
2907 | ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame, | |
2908 | data->rx_mgmt.frame_len); | |
2909 | } | |
2910 | #endif /* CONFIG_IBSS_RSN */ | |
2911 | ||
2912 | ||
2913 | #ifdef CONFIG_IEEE80211R | |
2914 | static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data, | |
2915 | size_t len) | |
2916 | { | |
2917 | const u8 *sta_addr, *target_ap_addr; | |
2918 | u16 status; | |
2919 | ||
2920 | wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len); | |
2921 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) | |
2922 | return; /* only SME case supported for now */ | |
2923 | if (len < 1 + 2 * ETH_ALEN + 2) | |
2924 | return; | |
2925 | if (data[0] != 2) | |
2926 | return; /* Only FT Action Response is supported for now */ | |
2927 | sta_addr = data + 1; | |
2928 | target_ap_addr = data + 1 + ETH_ALEN; | |
2929 | status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN); | |
2930 | wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA " | |
2931 | MACSTR " TargetAP " MACSTR " status %u", | |
2932 | MAC2STR(sta_addr), MAC2STR(target_ap_addr), status); | |
2933 | ||
2934 | if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) { | |
2935 | wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR | |
2936 | " in FT Action Response", MAC2STR(sta_addr)); | |
2937 | return; | |
2938 | } | |
2939 | ||
2940 | if (status) { | |
2941 | wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates " | |
2942 | "failure (status code %d)", status); | |
2943 | /* TODO: report error to FT code(?) */ | |
2944 | return; | |
2945 | } | |
2946 | ||
2947 | if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2, | |
2948 | len - (1 + 2 * ETH_ALEN + 2), 1, | |
2949 | target_ap_addr, NULL, 0) < 0) | |
2950 | return; | |
2951 | ||
2952 | #ifdef CONFIG_SME | |
2953 | { | |
2954 | struct wpa_bss *bss; | |
2955 | bss = wpa_bss_get_bssid(wpa_s, target_ap_addr); | |
2956 | if (bss) | |
2957 | wpa_s->sme.freq = bss->freq; | |
2958 | wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT; | |
2959 | sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr, | |
2960 | WLAN_AUTH_FT); | |
2961 | } | |
2962 | #endif /* CONFIG_SME */ | |
2963 | } | |
2964 | #endif /* CONFIG_IEEE80211R */ | |
2965 | ||
2966 | ||
2967 | static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s, | |
2968 | struct unprot_deauth *e) | |
2969 | { | |
2970 | #ifdef CONFIG_IEEE80211W | |
2971 | wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame " | |
2972 | "dropped: " MACSTR " -> " MACSTR | |
2973 | " (reason code %u)", | |
2974 | MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); | |
2975 | sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); | |
2976 | #endif /* CONFIG_IEEE80211W */ | |
2977 | } | |
2978 | ||
2979 | ||
2980 | static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s, | |
2981 | struct unprot_disassoc *e) | |
2982 | { | |
2983 | #ifdef CONFIG_IEEE80211W | |
2984 | wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame " | |
2985 | "dropped: " MACSTR " -> " MACSTR | |
2986 | " (reason code %u)", | |
2987 | MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); | |
2988 | sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); | |
2989 | #endif /* CONFIG_IEEE80211W */ | |
2990 | } | |
2991 | ||
2992 | ||
2993 | static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr, | |
2994 | u16 reason_code, int locally_generated, | |
2995 | const u8 *ie, size_t ie_len, int deauth) | |
2996 | { | |
2997 | #ifdef CONFIG_AP | |
2998 | if (wpa_s->ap_iface && addr) { | |
2999 | hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr); | |
3000 | return; | |
3001 | } | |
3002 | ||
3003 | if (wpa_s->ap_iface) { | |
3004 | wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode"); | |
3005 | return; | |
3006 | } | |
3007 | #endif /* CONFIG_AP */ | |
3008 | ||
3009 | if (!locally_generated) | |
3010 | wpa_s->own_disconnect_req = 0; | |
3011 | ||
3012 | wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated); | |
3013 | ||
3014 | if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED || | |
3015 | ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || | |
3016 | (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) && | |
3017 | eapol_sm_failed(wpa_s->eapol))) && | |
3018 | !wpa_s->eap_expected_failure)) | |
3019 | wpas_auth_failed(wpa_s, "AUTH_FAILED"); | |
3020 | ||
3021 | #ifdef CONFIG_P2P | |
3022 | if (deauth && reason_code > 0) { | |
3023 | if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len, | |
3024 | locally_generated) > 0) { | |
3025 | /* | |
3026 | * The interface was removed, so cannot continue | |
3027 | * processing any additional operations after this. | |
3028 | */ | |
3029 | return; | |
3030 | } | |
3031 | } | |
3032 | #endif /* CONFIG_P2P */ | |
3033 | ||
3034 | wpa_supplicant_event_disassoc_finish(wpa_s, reason_code, | |
3035 | locally_generated); | |
3036 | } | |
3037 | ||
3038 | ||
3039 | static void wpas_event_disassoc(struct wpa_supplicant *wpa_s, | |
3040 | struct disassoc_info *info) | |
3041 | { | |
3042 | u16 reason_code = 0; | |
3043 | int locally_generated = 0; | |
3044 | const u8 *addr = NULL; | |
3045 | const u8 *ie = NULL; | |
3046 | size_t ie_len = 0; | |
3047 | ||
3048 | wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification"); | |
3049 | ||
3050 | if (info) { | |
3051 | addr = info->addr; | |
3052 | ie = info->ie; | |
3053 | ie_len = info->ie_len; | |
3054 | reason_code = info->reason_code; | |
3055 | locally_generated = info->locally_generated; | |
3056 | wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code, | |
3057 | locally_generated ? " (locally generated)" : ""); | |
3058 | if (addr) | |
3059 | wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR, | |
3060 | MAC2STR(addr)); | |
3061 | wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)", | |
3062 | ie, ie_len); | |
3063 | } | |
3064 | ||
3065 | #ifdef CONFIG_AP | |
3066 | if (wpa_s->ap_iface && info && info->addr) { | |
3067 | hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr); | |
3068 | return; | |
3069 | } | |
3070 | ||
3071 | if (wpa_s->ap_iface) { | |
3072 | wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode"); | |
3073 | return; | |
3074 | } | |
3075 | #endif /* CONFIG_AP */ | |
3076 | ||
3077 | #ifdef CONFIG_P2P | |
3078 | if (info) { | |
3079 | wpas_p2p_disassoc_notif( | |
3080 | wpa_s, info->addr, reason_code, info->ie, info->ie_len, | |
3081 | locally_generated); | |
3082 | } | |
3083 | #endif /* CONFIG_P2P */ | |
3084 | ||
3085 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) | |
3086 | sme_event_disassoc(wpa_s, info); | |
3087 | ||
3088 | wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated, | |
3089 | ie, ie_len, 0); | |
3090 | } | |
3091 | ||
3092 | ||
3093 | static void wpas_event_deauth(struct wpa_supplicant *wpa_s, | |
3094 | struct deauth_info *info) | |
3095 | { | |
3096 | u16 reason_code = 0; | |
3097 | int locally_generated = 0; | |
3098 | const u8 *addr = NULL; | |
3099 | const u8 *ie = NULL; | |
3100 | size_t ie_len = 0; | |
3101 | ||
3102 | wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification"); | |
3103 | ||
3104 | if (info) { | |
3105 | addr = info->addr; | |
3106 | ie = info->ie; | |
3107 | ie_len = info->ie_len; | |
3108 | reason_code = info->reason_code; | |
3109 | locally_generated = info->locally_generated; | |
3110 | wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", | |
3111 | reason_code, | |
3112 | locally_generated ? " (locally generated)" : ""); | |
3113 | if (addr) { | |
3114 | wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR, | |
3115 | MAC2STR(addr)); | |
3116 | } | |
3117 | wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)", | |
3118 | ie, ie_len); | |
3119 | } | |
3120 | ||
3121 | wpa_reset_ft_completed(wpa_s->wpa); | |
3122 | ||
3123 | wpas_event_disconnect(wpa_s, addr, reason_code, | |
3124 | locally_generated, ie, ie_len, 1); | |
3125 | } | |
3126 | ||
3127 | ||
3128 | static const char * reg_init_str(enum reg_change_initiator init) | |
3129 | { | |
3130 | switch (init) { | |
3131 | case REGDOM_SET_BY_CORE: | |
3132 | return "CORE"; | |
3133 | case REGDOM_SET_BY_USER: | |
3134 | return "USER"; | |
3135 | case REGDOM_SET_BY_DRIVER: | |
3136 | return "DRIVER"; | |
3137 | case REGDOM_SET_BY_COUNTRY_IE: | |
3138 | return "COUNTRY_IE"; | |
3139 | case REGDOM_BEACON_HINT: | |
3140 | return "BEACON_HINT"; | |
3141 | } | |
3142 | return "?"; | |
3143 | } | |
3144 | ||
3145 | ||
3146 | static const char * reg_type_str(enum reg_type type) | |
3147 | { | |
3148 | switch (type) { | |
3149 | case REGDOM_TYPE_UNKNOWN: | |
3150 | return "UNKNOWN"; | |
3151 | case REGDOM_TYPE_COUNTRY: | |
3152 | return "COUNTRY"; | |
3153 | case REGDOM_TYPE_WORLD: | |
3154 | return "WORLD"; | |
3155 | case REGDOM_TYPE_CUSTOM_WORLD: | |
3156 | return "CUSTOM_WORLD"; | |
3157 | case REGDOM_TYPE_INTERSECTION: | |
3158 | return "INTERSECTION"; | |
3159 | } | |
3160 | return "?"; | |
3161 | } | |
3162 | ||
3163 | ||
3164 | static void wpa_supplicant_update_channel_list( | |
3165 | struct wpa_supplicant *wpa_s, struct channel_list_changed *info) | |
3166 | { | |
3167 | struct wpa_supplicant *ifs; | |
3168 | ||
3169 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s", | |
3170 | reg_init_str(info->initiator), reg_type_str(info->type), | |
3171 | info->alpha2[0] ? " alpha2=" : "", | |
3172 | info->alpha2[0] ? info->alpha2 : ""); | |
3173 | ||
3174 | if (wpa_s->drv_priv == NULL) | |
3175 | return; /* Ignore event during drv initialization */ | |
3176 | ||
3177 | dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant, | |
3178 | radio_list) { | |
3179 | wpa_printf(MSG_DEBUG, "%s: Updating hw mode", | |
3180 | ifs->ifname); | |
3181 | free_hw_features(ifs); | |
3182 | ifs->hw.modes = wpa_drv_get_hw_feature_data( | |
3183 | ifs, &ifs->hw.num_modes, &ifs->hw.flags); | |
3184 | } | |
3185 | ||
3186 | /* Restart sched_scan with updated channel list */ | |
3187 | if (wpa_s->sched_scanning) { | |
3188 | wpa_dbg(wpa_s, MSG_DEBUG, | |
3189 | "Channel list changed restart sched scan."); | |
3190 | wpa_supplicant_cancel_sched_scan(wpa_s); | |
3191 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
3192 | } | |
3193 | ||
3194 | wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER); | |
3195 | } | |
3196 | ||
3197 | ||
3198 | static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s, | |
3199 | const u8 *frame, size_t len, int freq, | |
3200 | int rssi) | |
3201 | { | |
3202 | const struct ieee80211_mgmt *mgmt; | |
3203 | const u8 *payload; | |
3204 | size_t plen; | |
3205 | u8 category; | |
3206 | ||
3207 | if (len < IEEE80211_HDRLEN + 2) | |
3208 | return; | |
3209 | ||
3210 | mgmt = (const struct ieee80211_mgmt *) frame; | |
3211 | payload = frame + IEEE80211_HDRLEN; | |
3212 | category = *payload++; | |
3213 | plen = len - IEEE80211_HDRLEN - 1; | |
3214 | ||
3215 | wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR | |
3216 | " Category=%u DataLen=%d freq=%d MHz", | |
3217 | MAC2STR(mgmt->sa), category, (int) plen, freq); | |
3218 | ||
3219 | if (category == WLAN_ACTION_WMM) { | |
3220 | wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen); | |
3221 | return; | |
3222 | } | |
3223 | ||
3224 | #ifdef CONFIG_IEEE80211R | |
3225 | if (category == WLAN_ACTION_FT) { | |
3226 | ft_rx_action(wpa_s, payload, plen); | |
3227 | return; | |
3228 | } | |
3229 | #endif /* CONFIG_IEEE80211R */ | |
3230 | ||
3231 | #ifdef CONFIG_IEEE80211W | |
3232 | #ifdef CONFIG_SME | |
3233 | if (category == WLAN_ACTION_SA_QUERY) { | |
3234 | sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen); | |
3235 | return; | |
3236 | } | |
3237 | #endif /* CONFIG_SME */ | |
3238 | #endif /* CONFIG_IEEE80211W */ | |
3239 | ||
3240 | #ifdef CONFIG_WNM | |
3241 | if (mgmt->u.action.category == WLAN_ACTION_WNM) { | |
3242 | ieee802_11_rx_wnm_action(wpa_s, mgmt, len); | |
3243 | return; | |
3244 | } | |
3245 | #endif /* CONFIG_WNM */ | |
3246 | ||
3247 | #ifdef CONFIG_GAS | |
3248 | if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC || | |
3249 | mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) && | |
3250 | gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid, | |
3251 | mgmt->u.action.category, | |
3252 | payload, plen, freq) == 0) | |
3253 | return; | |
3254 | #endif /* CONFIG_GAS */ | |
3255 | ||
3256 | #ifdef CONFIG_TDLS | |
3257 | if (category == WLAN_ACTION_PUBLIC && plen >= 4 && | |
3258 | payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) { | |
3259 | wpa_dbg(wpa_s, MSG_DEBUG, | |
3260 | "TDLS: Received Discovery Response from " MACSTR, | |
3261 | MAC2STR(mgmt->sa)); | |
3262 | return; | |
3263 | } | |
3264 | #endif /* CONFIG_TDLS */ | |
3265 | ||
3266 | #ifdef CONFIG_INTERWORKING | |
3267 | if (category == WLAN_ACTION_QOS && plen >= 1 && | |
3268 | payload[0] == QOS_QOS_MAP_CONFIG) { | |
3269 | const u8 *pos = payload + 1; | |
3270 | size_t qlen = plen - 1; | |
3271 | wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from " | |
3272 | MACSTR, MAC2STR(mgmt->sa)); | |
3273 | if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 && | |
3274 | qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET && | |
3275 | pos[1] <= qlen - 2 && pos[1] >= 16) | |
3276 | wpas_qos_map_set(wpa_s, pos + 2, pos[1]); | |
3277 | return; | |
3278 | } | |
3279 | #endif /* CONFIG_INTERWORKING */ | |
3280 | ||
3281 | if (category == WLAN_ACTION_RADIO_MEASUREMENT && | |
3282 | payload[0] == WLAN_RRM_RADIO_MEASUREMENT_REQUEST) { | |
3283 | wpas_rrm_handle_radio_measurement_request(wpa_s, mgmt->sa, | |
3284 | payload + 1, | |
3285 | plen - 1); | |
3286 | return; | |
3287 | } | |
3288 | ||
3289 | if (category == WLAN_ACTION_RADIO_MEASUREMENT && | |
3290 | payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) { | |
3291 | wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1); | |
3292 | return; | |
3293 | } | |
3294 | ||
3295 | if (category == WLAN_ACTION_RADIO_MEASUREMENT && | |
3296 | payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) { | |
3297 | wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa, | |
3298 | payload + 1, plen - 1, | |
3299 | rssi); | |
3300 | return; | |
3301 | } | |
3302 | ||
3303 | #ifdef CONFIG_FST | |
3304 | if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) { | |
3305 | fst_rx_action(wpa_s->fst, mgmt, len); | |
3306 | return; | |
3307 | } | |
3308 | #endif /* CONFIG_FST */ | |
3309 | ||
3310 | wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid, | |
3311 | category, payload, plen, freq); | |
3312 | if (wpa_s->ifmsh) | |
3313 | mesh_mpm_action_rx(wpa_s, mgmt, len); | |
3314 | } | |
3315 | ||
3316 | ||
3317 | static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s, | |
3318 | union wpa_event_data *event) | |
3319 | { | |
3320 | struct wpa_freq_range_list *list; | |
3321 | char *str = NULL; | |
3322 | ||
3323 | list = &event->freq_range; | |
3324 | ||
3325 | if (list->num) | |
3326 | str = freq_range_list_str(list); | |
3327 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s", | |
3328 | str ? str : ""); | |
3329 | ||
3330 | #ifdef CONFIG_P2P | |
3331 | if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) { | |
3332 | wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range", | |
3333 | __func__); | |
3334 | } else { | |
3335 | wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event"); | |
3336 | ||
3337 | /* | |
3338 | * The update channel flow will also take care of moving a GO | |
3339 | * from the unsafe frequency if needed. | |
3340 | */ | |
3341 | wpas_p2p_update_channel_list(wpa_s, | |
3342 | WPAS_P2P_CHANNEL_UPDATE_AVOID); | |
3343 | } | |
3344 | #endif /* CONFIG_P2P */ | |
3345 | ||
3346 | os_free(str); | |
3347 | } | |
3348 | ||
3349 | ||
3350 | static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s, | |
3351 | union wpa_event_data *data) | |
3352 | { | |
3353 | wpa_dbg(wpa_s, MSG_DEBUG, | |
3354 | "Connection authorized by device, previous state %d", | |
3355 | wpa_s->wpa_state); | |
3356 | if (wpa_s->wpa_state == WPA_ASSOCIATED) { | |
3357 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
3358 | wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); | |
3359 | eapol_sm_notify_portValid(wpa_s->eapol, TRUE); | |
3360 | eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); | |
3361 | } | |
3362 | wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr); | |
3363 | wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck, | |
3364 | data->assoc_info.ptk_kck_len, | |
3365 | data->assoc_info.ptk_kek, | |
3366 | data->assoc_info.ptk_kek_len); | |
3367 | } | |
3368 | ||
3369 | ||
3370 | void wpa_supplicant_event(void *ctx, enum wpa_event_type event, | |
3371 | union wpa_event_data *data) | |
3372 | { | |
3373 | struct wpa_supplicant *wpa_s = ctx; | |
3374 | int resched; | |
3375 | ||
3376 | if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED && | |
3377 | event != EVENT_INTERFACE_ENABLED && | |
3378 | event != EVENT_INTERFACE_STATUS && | |
3379 | event != EVENT_SCAN_RESULTS && | |
3380 | event != EVENT_SCHED_SCAN_STOPPED) { | |
3381 | wpa_dbg(wpa_s, MSG_DEBUG, | |
3382 | "Ignore event %s (%d) while interface is disabled", | |
3383 | event_to_string(event), event); | |
3384 | return; | |
3385 | } | |
3386 | ||
3387 | #ifndef CONFIG_NO_STDOUT_DEBUG | |
3388 | { | |
3389 | int level = MSG_DEBUG; | |
3390 | ||
3391 | if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) { | |
3392 | const struct ieee80211_hdr *hdr; | |
3393 | u16 fc; | |
3394 | hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame; | |
3395 | fc = le_to_host16(hdr->frame_control); | |
3396 | if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && | |
3397 | WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON) | |
3398 | level = MSG_EXCESSIVE; | |
3399 | } | |
3400 | ||
3401 | wpa_dbg(wpa_s, level, "Event %s (%d) received", | |
3402 | event_to_string(event), event); | |
3403 | } | |
3404 | #endif /* CONFIG_NO_STDOUT_DEBUG */ | |
3405 | ||
3406 | switch (event) { | |
3407 | case EVENT_AUTH: | |
3408 | #ifdef CONFIG_FST | |
3409 | if (!wpas_fst_update_mbie(wpa_s, data->auth.ies, | |
3410 | data->auth.ies_len)) | |
3411 | wpa_printf(MSG_DEBUG, | |
3412 | "FST: MB IEs updated from auth IE"); | |
3413 | #endif /* CONFIG_FST */ | |
3414 | sme_event_auth(wpa_s, data); | |
3415 | break; | |
3416 | case EVENT_ASSOC: | |
3417 | wpa_supplicant_event_assoc(wpa_s, data); | |
3418 | if (data && data->assoc_info.authorized) | |
3419 | wpa_supplicant_event_assoc_auth(wpa_s, data); | |
3420 | if (data) { | |
3421 | wpa_msg(wpa_s, MSG_INFO, | |
3422 | WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u", | |
3423 | data->assoc_info.subnet_status); | |
3424 | } | |
3425 | break; | |
3426 | case EVENT_DISASSOC: | |
3427 | wpas_event_disassoc(wpa_s, | |
3428 | data ? &data->disassoc_info : NULL); | |
3429 | break; | |
3430 | case EVENT_DEAUTH: | |
3431 | wpas_event_deauth(wpa_s, | |
3432 | data ? &data->deauth_info : NULL); | |
3433 | break; | |
3434 | case EVENT_MICHAEL_MIC_FAILURE: | |
3435 | wpa_supplicant_event_michael_mic_failure(wpa_s, data); | |
3436 | break; | |
3437 | #ifndef CONFIG_NO_SCAN_PROCESSING | |
3438 | case EVENT_SCAN_STARTED: | |
3439 | if (wpa_s->own_scan_requested || | |
3440 | (data && !data->scan_info.external_scan)) { | |
3441 | struct os_reltime diff; | |
3442 | ||
3443 | os_get_reltime(&wpa_s->scan_start_time); | |
3444 | os_reltime_sub(&wpa_s->scan_start_time, | |
3445 | &wpa_s->scan_trigger_time, &diff); | |
3446 | wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds", | |
3447 | diff.sec, diff.usec); | |
3448 | wpa_s->own_scan_requested = 0; | |
3449 | wpa_s->own_scan_running = 1; | |
3450 | if (wpa_s->last_scan_req == MANUAL_SCAN_REQ && | |
3451 | wpa_s->manual_scan_use_id) { | |
3452 | wpa_msg_ctrl(wpa_s, MSG_INFO, | |
3453 | WPA_EVENT_SCAN_STARTED "id=%u", | |
3454 | wpa_s->manual_scan_id); | |
3455 | } else { | |
3456 | wpa_msg_ctrl(wpa_s, MSG_INFO, | |
3457 | WPA_EVENT_SCAN_STARTED); | |
3458 | } | |
3459 | } else { | |
3460 | wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan"); | |
3461 | wpa_s->radio->external_scan_running = 1; | |
3462 | wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED); | |
3463 | } | |
3464 | break; | |
3465 | case EVENT_SCAN_RESULTS: | |
3466 | if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { | |
3467 | wpa_s->scan_res_handler = NULL; | |
3468 | wpa_s->own_scan_running = 0; | |
3469 | wpa_s->radio->external_scan_running = 0; | |
3470 | wpa_s->last_scan_req = NORMAL_SCAN_REQ; | |
3471 | break; | |
3472 | } | |
3473 | ||
3474 | if (!(data && data->scan_info.external_scan) && | |
3475 | os_reltime_initialized(&wpa_s->scan_start_time)) { | |
3476 | struct os_reltime now, diff; | |
3477 | os_get_reltime(&now); | |
3478 | os_reltime_sub(&now, &wpa_s->scan_start_time, &diff); | |
3479 | wpa_s->scan_start_time.sec = 0; | |
3480 | wpa_s->scan_start_time.usec = 0; | |
3481 | wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds", | |
3482 | diff.sec, diff.usec); | |
3483 | } | |
3484 | if (wpa_supplicant_event_scan_results(wpa_s, data)) | |
3485 | break; /* interface may have been removed */ | |
3486 | if (!(data && data->scan_info.external_scan)) | |
3487 | wpa_s->own_scan_running = 0; | |
3488 | if (data && data->scan_info.nl_scan_event) | |
3489 | wpa_s->radio->external_scan_running = 0; | |
3490 | radio_work_check_next(wpa_s); | |
3491 | break; | |
3492 | #endif /* CONFIG_NO_SCAN_PROCESSING */ | |
3493 | case EVENT_ASSOCINFO: | |
3494 | wpa_supplicant_event_associnfo(wpa_s, data); | |
3495 | break; | |
3496 | case EVENT_INTERFACE_STATUS: | |
3497 | wpa_supplicant_event_interface_status(wpa_s, data); | |
3498 | break; | |
3499 | case EVENT_PMKID_CANDIDATE: | |
3500 | wpa_supplicant_event_pmkid_candidate(wpa_s, data); | |
3501 | break; | |
3502 | #ifdef CONFIG_PEERKEY | |
3503 | case EVENT_STKSTART: | |
3504 | wpa_supplicant_event_stkstart(wpa_s, data); | |
3505 | break; | |
3506 | #endif /* CONFIG_PEERKEY */ | |
3507 | #ifdef CONFIG_TDLS | |
3508 | case EVENT_TDLS: | |
3509 | wpa_supplicant_event_tdls(wpa_s, data); | |
3510 | break; | |
3511 | #endif /* CONFIG_TDLS */ | |
3512 | #ifdef CONFIG_WNM | |
3513 | case EVENT_WNM: | |
3514 | wpa_supplicant_event_wnm(wpa_s, data); | |
3515 | break; | |
3516 | #endif /* CONFIG_WNM */ | |
3517 | #ifdef CONFIG_IEEE80211R | |
3518 | case EVENT_FT_RESPONSE: | |
3519 | wpa_supplicant_event_ft_response(wpa_s, data); | |
3520 | break; | |
3521 | #endif /* CONFIG_IEEE80211R */ | |
3522 | #ifdef CONFIG_IBSS_RSN | |
3523 | case EVENT_IBSS_RSN_START: | |
3524 | wpa_supplicant_event_ibss_rsn_start(wpa_s, data); | |
3525 | break; | |
3526 | #endif /* CONFIG_IBSS_RSN */ | |
3527 | case EVENT_ASSOC_REJECT: | |
3528 | if (data->assoc_reject.bssid) | |
3529 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT | |
3530 | "bssid=" MACSTR " status_code=%u", | |
3531 | MAC2STR(data->assoc_reject.bssid), | |
3532 | data->assoc_reject.status_code); | |
3533 | else | |
3534 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT | |
3535 | "status_code=%u", | |
3536 | data->assoc_reject.status_code); | |
3537 | wpa_s->assoc_status_code = data->assoc_reject.status_code; | |
3538 | wpas_notify_assoc_status_code(wpa_s); | |
3539 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) | |
3540 | sme_event_assoc_reject(wpa_s, data); | |
3541 | else { | |
3542 | const u8 *bssid = data->assoc_reject.bssid; | |
3543 | if (bssid == NULL || is_zero_ether_addr(bssid)) | |
3544 | bssid = wpa_s->pending_bssid; | |
3545 | wpas_connection_failed(wpa_s, bssid); | |
3546 | wpa_supplicant_mark_disassoc(wpa_s); | |
3547 | } | |
3548 | break; | |
3549 | case EVENT_AUTH_TIMED_OUT: | |
3550 | /* It is possible to get this event from earlier connection */ | |
3551 | if (wpa_s->current_ssid && | |
3552 | wpa_s->current_ssid->mode == WPAS_MODE_MESH) { | |
3553 | wpa_dbg(wpa_s, MSG_DEBUG, | |
3554 | "Ignore AUTH_TIMED_OUT in mesh configuration"); | |
3555 | break; | |
3556 | } | |
3557 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) | |
3558 | sme_event_auth_timed_out(wpa_s, data); | |
3559 | break; | |
3560 | case EVENT_ASSOC_TIMED_OUT: | |
3561 | /* It is possible to get this event from earlier connection */ | |
3562 | if (wpa_s->current_ssid && | |
3563 | wpa_s->current_ssid->mode == WPAS_MODE_MESH) { | |
3564 | wpa_dbg(wpa_s, MSG_DEBUG, | |
3565 | "Ignore ASSOC_TIMED_OUT in mesh configuration"); | |
3566 | break; | |
3567 | } | |
3568 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) | |
3569 | sme_event_assoc_timed_out(wpa_s, data); | |
3570 | break; | |
3571 | case EVENT_TX_STATUS: | |
3572 | wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR | |
3573 | " type=%d stype=%d", | |
3574 | MAC2STR(data->tx_status.dst), | |
3575 | data->tx_status.type, data->tx_status.stype); | |
3576 | #ifdef CONFIG_AP | |
3577 | if (wpa_s->ap_iface == NULL) { | |
3578 | #ifdef CONFIG_OFFCHANNEL | |
3579 | if (data->tx_status.type == WLAN_FC_TYPE_MGMT && | |
3580 | data->tx_status.stype == WLAN_FC_STYPE_ACTION) | |
3581 | offchannel_send_action_tx_status( | |
3582 | wpa_s, data->tx_status.dst, | |
3583 | data->tx_status.data, | |
3584 | data->tx_status.data_len, | |
3585 | data->tx_status.ack ? | |
3586 | OFFCHANNEL_SEND_ACTION_SUCCESS : | |
3587 | OFFCHANNEL_SEND_ACTION_NO_ACK); | |
3588 | #endif /* CONFIG_OFFCHANNEL */ | |
3589 | break; | |
3590 | } | |
3591 | #endif /* CONFIG_AP */ | |
3592 | #ifdef CONFIG_OFFCHANNEL | |
3593 | wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst=" | |
3594 | MACSTR, MAC2STR(wpa_s->parent->pending_action_dst)); | |
3595 | /* | |
3596 | * Catch TX status events for Action frames we sent via group | |
3597 | * interface in GO mode. | |
3598 | */ | |
3599 | if (data->tx_status.type == WLAN_FC_TYPE_MGMT && | |
3600 | data->tx_status.stype == WLAN_FC_STYPE_ACTION && | |
3601 | os_memcmp(wpa_s->parent->pending_action_dst, | |
3602 | data->tx_status.dst, ETH_ALEN) == 0) { | |
3603 | offchannel_send_action_tx_status( | |
3604 | wpa_s->parent, data->tx_status.dst, | |
3605 | data->tx_status.data, | |
3606 | data->tx_status.data_len, | |
3607 | data->tx_status.ack ? | |
3608 | OFFCHANNEL_SEND_ACTION_SUCCESS : | |
3609 | OFFCHANNEL_SEND_ACTION_NO_ACK); | |
3610 | break; | |
3611 | } | |
3612 | #endif /* CONFIG_OFFCHANNEL */ | |
3613 | #ifdef CONFIG_AP | |
3614 | switch (data->tx_status.type) { | |
3615 | case WLAN_FC_TYPE_MGMT: | |
3616 | ap_mgmt_tx_cb(wpa_s, data->tx_status.data, | |
3617 | data->tx_status.data_len, | |
3618 | data->tx_status.stype, | |
3619 | data->tx_status.ack); | |
3620 | break; | |
3621 | case WLAN_FC_TYPE_DATA: | |
3622 | ap_tx_status(wpa_s, data->tx_status.dst, | |
3623 | data->tx_status.data, | |
3624 | data->tx_status.data_len, | |
3625 | data->tx_status.ack); | |
3626 | break; | |
3627 | } | |
3628 | #endif /* CONFIG_AP */ | |
3629 | break; | |
3630 | #ifdef CONFIG_AP | |
3631 | case EVENT_EAPOL_TX_STATUS: | |
3632 | ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst, | |
3633 | data->eapol_tx_status.data, | |
3634 | data->eapol_tx_status.data_len, | |
3635 | data->eapol_tx_status.ack); | |
3636 | break; | |
3637 | case EVENT_DRIVER_CLIENT_POLL_OK: | |
3638 | ap_client_poll_ok(wpa_s, data->client_poll.addr); | |
3639 | break; | |
3640 | case EVENT_RX_FROM_UNKNOWN: | |
3641 | if (wpa_s->ap_iface == NULL) | |
3642 | break; | |
3643 | ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr, | |
3644 | data->rx_from_unknown.wds); | |
3645 | break; | |
3646 | case EVENT_CH_SWITCH: | |
3647 | if (!data || !wpa_s->current_ssid) | |
3648 | break; | |
3649 | ||
3650 | wpa_s->assoc_freq = data->ch_switch.freq; | |
3651 | wpa_s->current_ssid->frequency = data->ch_switch.freq; | |
3652 | ||
3653 | if (wpa_s->current_ssid->mode == WPAS_MODE_AP || | |
3654 | wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO || | |
3655 | wpa_s->current_ssid->mode == | |
3656 | WPAS_MODE_P2P_GROUP_FORMATION) { | |
3657 | wpas_ap_ch_switch(wpa_s, data->ch_switch.freq, | |
3658 | data->ch_switch.ht_enabled, | |
3659 | data->ch_switch.ch_offset, | |
3660 | data->ch_switch.ch_width, | |
3661 | data->ch_switch.cf1, | |
3662 | data->ch_switch.cf2); | |
3663 | } | |
3664 | ||
3665 | wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS); | |
3666 | break; | |
3667 | #ifdef NEED_AP_MLME | |
3668 | case EVENT_DFS_RADAR_DETECTED: | |
3669 | if (data) | |
3670 | wpas_event_dfs_radar_detected(wpa_s, &data->dfs_event); | |
3671 | break; | |
3672 | case EVENT_DFS_CAC_STARTED: | |
3673 | if (data) | |
3674 | wpas_event_dfs_cac_started(wpa_s, &data->dfs_event); | |
3675 | break; | |
3676 | case EVENT_DFS_CAC_FINISHED: | |
3677 | if (data) | |
3678 | wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event); | |
3679 | break; | |
3680 | case EVENT_DFS_CAC_ABORTED: | |
3681 | if (data) | |
3682 | wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event); | |
3683 | break; | |
3684 | case EVENT_DFS_NOP_FINISHED: | |
3685 | if (data) | |
3686 | wpas_event_dfs_cac_nop_finished(wpa_s, | |
3687 | &data->dfs_event); | |
3688 | break; | |
3689 | #endif /* NEED_AP_MLME */ | |
3690 | #endif /* CONFIG_AP */ | |
3691 | case EVENT_RX_MGMT: { | |
3692 | u16 fc, stype; | |
3693 | const struct ieee80211_mgmt *mgmt; | |
3694 | ||
3695 | #ifdef CONFIG_TESTING_OPTIONS | |
3696 | if (wpa_s->ext_mgmt_frame_handling) { | |
3697 | struct rx_mgmt *rx = &data->rx_mgmt; | |
3698 | size_t hex_len = 2 * rx->frame_len + 1; | |
3699 | char *hex = os_malloc(hex_len); | |
3700 | if (hex) { | |
3701 | wpa_snprintf_hex(hex, hex_len, | |
3702 | rx->frame, rx->frame_len); | |
3703 | wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s", | |
3704 | rx->freq, rx->datarate, rx->ssi_signal, | |
3705 | hex); | |
3706 | os_free(hex); | |
3707 | } | |
3708 | break; | |
3709 | } | |
3710 | #endif /* CONFIG_TESTING_OPTIONS */ | |
3711 | ||
3712 | mgmt = (const struct ieee80211_mgmt *) | |
3713 | data->rx_mgmt.frame; | |
3714 | fc = le_to_host16(mgmt->frame_control); | |
3715 | stype = WLAN_FC_GET_STYPE(fc); | |
3716 | ||
3717 | #ifdef CONFIG_AP | |
3718 | if (wpa_s->ap_iface == NULL) { | |
3719 | #endif /* CONFIG_AP */ | |
3720 | #ifdef CONFIG_P2P | |
3721 | if (stype == WLAN_FC_STYPE_PROBE_REQ && | |
3722 | data->rx_mgmt.frame_len > IEEE80211_HDRLEN) { | |
3723 | const u8 *src = mgmt->sa; | |
3724 | const u8 *ie; | |
3725 | size_t ie_len; | |
3726 | ||
3727 | ie = data->rx_mgmt.frame + IEEE80211_HDRLEN; | |
3728 | ie_len = data->rx_mgmt.frame_len - | |
3729 | IEEE80211_HDRLEN; | |
3730 | wpas_p2p_probe_req_rx( | |
3731 | wpa_s, src, mgmt->da, | |
3732 | mgmt->bssid, ie, ie_len, | |
3733 | data->rx_mgmt.freq, | |
3734 | data->rx_mgmt.ssi_signal); | |
3735 | break; | |
3736 | } | |
3737 | #endif /* CONFIG_P2P */ | |
3738 | #ifdef CONFIG_IBSS_RSN | |
3739 | if (wpa_s->current_ssid && | |
3740 | wpa_s->current_ssid->mode == WPAS_MODE_IBSS && | |
3741 | stype == WLAN_FC_STYPE_AUTH && | |
3742 | data->rx_mgmt.frame_len >= 30) { | |
3743 | wpa_supplicant_event_ibss_auth(wpa_s, data); | |
3744 | break; | |
3745 | } | |
3746 | #endif /* CONFIG_IBSS_RSN */ | |
3747 | ||
3748 | if (stype == WLAN_FC_STYPE_ACTION) { | |
3749 | wpas_event_rx_mgmt_action( | |
3750 | wpa_s, data->rx_mgmt.frame, | |
3751 | data->rx_mgmt.frame_len, | |
3752 | data->rx_mgmt.freq, | |
3753 | data->rx_mgmt.ssi_signal); | |
3754 | break; | |
3755 | } | |
3756 | ||
3757 | if (wpa_s->ifmsh) { | |
3758 | mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt); | |
3759 | break; | |
3760 | } | |
3761 | ||
3762 | wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received " | |
3763 | "management frame in non-AP mode"); | |
3764 | break; | |
3765 | #ifdef CONFIG_AP | |
3766 | } | |
3767 | ||
3768 | if (stype == WLAN_FC_STYPE_PROBE_REQ && | |
3769 | data->rx_mgmt.frame_len > IEEE80211_HDRLEN) { | |
3770 | const u8 *ie; | |
3771 | size_t ie_len; | |
3772 | ||
3773 | ie = data->rx_mgmt.frame + IEEE80211_HDRLEN; | |
3774 | ie_len = data->rx_mgmt.frame_len - IEEE80211_HDRLEN; | |
3775 | ||
3776 | wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da, | |
3777 | mgmt->bssid, ie, ie_len, | |
3778 | data->rx_mgmt.ssi_signal); | |
3779 | } | |
3780 | ||
3781 | ap_mgmt_rx(wpa_s, &data->rx_mgmt); | |
3782 | #endif /* CONFIG_AP */ | |
3783 | break; | |
3784 | } | |
3785 | case EVENT_RX_PROBE_REQ: | |
3786 | if (data->rx_probe_req.sa == NULL || | |
3787 | data->rx_probe_req.ie == NULL) | |
3788 | break; | |
3789 | #ifdef CONFIG_AP | |
3790 | if (wpa_s->ap_iface) { | |
3791 | hostapd_probe_req_rx(wpa_s->ap_iface->bss[0], | |
3792 | data->rx_probe_req.sa, | |
3793 | data->rx_probe_req.da, | |
3794 | data->rx_probe_req.bssid, | |
3795 | data->rx_probe_req.ie, | |
3796 | data->rx_probe_req.ie_len, | |
3797 | data->rx_probe_req.ssi_signal); | |
3798 | break; | |
3799 | } | |
3800 | #endif /* CONFIG_AP */ | |
3801 | wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa, | |
3802 | data->rx_probe_req.da, | |
3803 | data->rx_probe_req.bssid, | |
3804 | data->rx_probe_req.ie, | |
3805 | data->rx_probe_req.ie_len, | |
3806 | 0, | |
3807 | data->rx_probe_req.ssi_signal); | |
3808 | break; | |
3809 | case EVENT_REMAIN_ON_CHANNEL: | |
3810 | #ifdef CONFIG_OFFCHANNEL | |
3811 | offchannel_remain_on_channel_cb( | |
3812 | wpa_s, data->remain_on_channel.freq, | |
3813 | data->remain_on_channel.duration); | |
3814 | #endif /* CONFIG_OFFCHANNEL */ | |
3815 | wpas_p2p_remain_on_channel_cb( | |
3816 | wpa_s, data->remain_on_channel.freq, | |
3817 | data->remain_on_channel.duration); | |
3818 | break; | |
3819 | case EVENT_CANCEL_REMAIN_ON_CHANNEL: | |
3820 | #ifdef CONFIG_OFFCHANNEL | |
3821 | offchannel_cancel_remain_on_channel_cb( | |
3822 | wpa_s, data->remain_on_channel.freq); | |
3823 | #endif /* CONFIG_OFFCHANNEL */ | |
3824 | wpas_p2p_cancel_remain_on_channel_cb( | |
3825 | wpa_s, data->remain_on_channel.freq); | |
3826 | break; | |
3827 | case EVENT_EAPOL_RX: | |
3828 | wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src, | |
3829 | data->eapol_rx.data, | |
3830 | data->eapol_rx.data_len); | |
3831 | break; | |
3832 | case EVENT_SIGNAL_CHANGE: | |
3833 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE | |
3834 | "above=%d signal=%d noise=%d txrate=%d", | |
3835 | data->signal_change.above_threshold, | |
3836 | data->signal_change.current_signal, | |
3837 | data->signal_change.current_noise, | |
3838 | data->signal_change.current_txrate); | |
3839 | wpa_bss_update_level(wpa_s->current_bss, | |
3840 | data->signal_change.current_signal); | |
3841 | bgscan_notify_signal_change( | |
3842 | wpa_s, data->signal_change.above_threshold, | |
3843 | data->signal_change.current_signal, | |
3844 | data->signal_change.current_noise, | |
3845 | data->signal_change.current_txrate); | |
3846 | break; | |
3847 | case EVENT_INTERFACE_ENABLED: | |
3848 | wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled"); | |
3849 | if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { | |
3850 | wpa_supplicant_update_mac_addr(wpa_s); | |
3851 | if (wpa_s->p2p_mgmt) { | |
3852 | wpa_supplicant_set_state(wpa_s, | |
3853 | WPA_DISCONNECTED); | |
3854 | break; | |
3855 | } | |
3856 | ||
3857 | #ifdef CONFIG_AP | |
3858 | if (!wpa_s->ap_iface) { | |
3859 | wpa_supplicant_set_state(wpa_s, | |
3860 | WPA_DISCONNECTED); | |
3861 | wpa_s->scan_req = NORMAL_SCAN_REQ; | |
3862 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
3863 | } else | |
3864 | wpa_supplicant_set_state(wpa_s, | |
3865 | WPA_COMPLETED); | |
3866 | #else /* CONFIG_AP */ | |
3867 | wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); | |
3868 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
3869 | #endif /* CONFIG_AP */ | |
3870 | } | |
3871 | break; | |
3872 | case EVENT_INTERFACE_DISABLED: | |
3873 | wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled"); | |
3874 | #ifdef CONFIG_P2P | |
3875 | if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO || | |
3876 | (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group && | |
3877 | wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) { | |
3878 | /* | |
3879 | * Mark interface disabled if this happens to end up not | |
3880 | * being removed as a separate P2P group interface. | |
3881 | */ | |
3882 | wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); | |
3883 | /* | |
3884 | * The interface was externally disabled. Remove | |
3885 | * it assuming an external entity will start a | |
3886 | * new session if needed. | |
3887 | */ | |
3888 | if (wpa_s->current_ssid && | |
3889 | wpa_s->current_ssid->p2p_group) | |
3890 | wpas_p2p_interface_unavailable(wpa_s); | |
3891 | else | |
3892 | wpas_p2p_disconnect(wpa_s); | |
3893 | /* | |
3894 | * wpa_s instance may have been freed, so must not use | |
3895 | * it here anymore. | |
3896 | */ | |
3897 | break; | |
3898 | } | |
3899 | if (wpa_s->p2p_scan_work && wpa_s->global->p2p && | |
3900 | p2p_in_progress(wpa_s->global->p2p) > 1) { | |
3901 | /* This radio work will be cancelled, so clear P2P | |
3902 | * state as well. | |
3903 | */ | |
3904 | p2p_stop_find(wpa_s->global->p2p); | |
3905 | } | |
3906 | #endif /* CONFIG_P2P */ | |
3907 | ||
3908 | if (wpa_s->wpa_state >= WPA_AUTHENTICATING) { | |
3909 | /* | |
3910 | * Indicate disconnection to keep ctrl_iface events | |
3911 | * consistent. | |
3912 | */ | |
3913 | wpa_supplicant_event_disassoc( | |
3914 | wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1); | |
3915 | } | |
3916 | wpa_supplicant_mark_disassoc(wpa_s); | |
3917 | radio_remove_works(wpa_s, NULL, 0); | |
3918 | ||
3919 | wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); | |
3920 | break; | |
3921 | case EVENT_CHANNEL_LIST_CHANGED: | |
3922 | wpa_supplicant_update_channel_list( | |
3923 | wpa_s, &data->channel_list_changed); | |
3924 | break; | |
3925 | case EVENT_INTERFACE_UNAVAILABLE: | |
3926 | wpas_p2p_interface_unavailable(wpa_s); | |
3927 | break; | |
3928 | case EVENT_BEST_CHANNEL: | |
3929 | wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received " | |
3930 | "(%d %d %d)", | |
3931 | data->best_chan.freq_24, data->best_chan.freq_5, | |
3932 | data->best_chan.freq_overall); | |
3933 | wpa_s->best_24_freq = data->best_chan.freq_24; | |
3934 | wpa_s->best_5_freq = data->best_chan.freq_5; | |
3935 | wpa_s->best_overall_freq = data->best_chan.freq_overall; | |
3936 | wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24, | |
3937 | data->best_chan.freq_5, | |
3938 | data->best_chan.freq_overall); | |
3939 | break; | |
3940 | case EVENT_UNPROT_DEAUTH: | |
3941 | wpa_supplicant_event_unprot_deauth(wpa_s, | |
3942 | &data->unprot_deauth); | |
3943 | break; | |
3944 | case EVENT_UNPROT_DISASSOC: | |
3945 | wpa_supplicant_event_unprot_disassoc(wpa_s, | |
3946 | &data->unprot_disassoc); | |
3947 | break; | |
3948 | case EVENT_STATION_LOW_ACK: | |
3949 | #ifdef CONFIG_AP | |
3950 | if (wpa_s->ap_iface && data) | |
3951 | hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0], | |
3952 | data->low_ack.addr); | |
3953 | #endif /* CONFIG_AP */ | |
3954 | #ifdef CONFIG_TDLS | |
3955 | if (data) | |
3956 | wpa_tdls_disable_unreachable_link(wpa_s->wpa, | |
3957 | data->low_ack.addr); | |
3958 | #endif /* CONFIG_TDLS */ | |
3959 | break; | |
3960 | case EVENT_IBSS_PEER_LOST: | |
3961 | #ifdef CONFIG_IBSS_RSN | |
3962 | ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer); | |
3963 | #endif /* CONFIG_IBSS_RSN */ | |
3964 | break; | |
3965 | case EVENT_DRIVER_GTK_REKEY: | |
3966 | if (os_memcmp(data->driver_gtk_rekey.bssid, | |
3967 | wpa_s->bssid, ETH_ALEN)) | |
3968 | break; | |
3969 | if (!wpa_s->wpa) | |
3970 | break; | |
3971 | wpa_sm_update_replay_ctr(wpa_s->wpa, | |
3972 | data->driver_gtk_rekey.replay_ctr); | |
3973 | break; | |
3974 | case EVENT_SCHED_SCAN_STOPPED: | |
3975 | wpa_s->sched_scanning = 0; | |
3976 | resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s); | |
3977 | wpa_supplicant_notify_scanning(wpa_s, 0); | |
3978 | ||
3979 | if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) | |
3980 | break; | |
3981 | ||
3982 | /* | |
3983 | * Start a new sched scan to continue searching for more SSIDs | |
3984 | * either if timed out or PNO schedule scan is pending. | |
3985 | */ | |
3986 | if (wpa_s->sched_scan_timed_out) { | |
3987 | wpa_supplicant_req_sched_scan(wpa_s); | |
3988 | } else if (wpa_s->pno_sched_pending) { | |
3989 | wpa_s->pno_sched_pending = 0; | |
3990 | wpas_start_pno(wpa_s); | |
3991 | } else if (resched) { | |
3992 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
3993 | } | |
3994 | ||
3995 | break; | |
3996 | case EVENT_WPS_BUTTON_PUSHED: | |
3997 | #ifdef CONFIG_WPS | |
3998 | wpas_wps_start_pbc(wpa_s, NULL, 0); | |
3999 | #endif /* CONFIG_WPS */ | |
4000 | break; | |
4001 | case EVENT_AVOID_FREQUENCIES: | |
4002 | wpa_supplicant_notify_avoid_freq(wpa_s, data); | |
4003 | break; | |
4004 | case EVENT_CONNECT_FAILED_REASON: | |
4005 | #ifdef CONFIG_AP | |
4006 | if (!wpa_s->ap_iface || !data) | |
4007 | break; | |
4008 | hostapd_event_connect_failed_reason( | |
4009 | wpa_s->ap_iface->bss[0], | |
4010 | data->connect_failed_reason.addr, | |
4011 | data->connect_failed_reason.code); | |
4012 | #endif /* CONFIG_AP */ | |
4013 | break; | |
4014 | case EVENT_NEW_PEER_CANDIDATE: | |
4015 | #ifdef CONFIG_MESH | |
4016 | if (!wpa_s->ifmsh || !data) | |
4017 | break; | |
4018 | wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer, | |
4019 | data->mesh_peer.ies, | |
4020 | data->mesh_peer.ie_len); | |
4021 | #endif /* CONFIG_MESH */ | |
4022 | break; | |
4023 | case EVENT_SURVEY: | |
4024 | #ifdef CONFIG_AP | |
4025 | if (!wpa_s->ap_iface) | |
4026 | break; | |
4027 | hostapd_event_get_survey(wpa_s->ap_iface, | |
4028 | &data->survey_results); | |
4029 | #endif /* CONFIG_AP */ | |
4030 | break; | |
4031 | case EVENT_ACS_CHANNEL_SELECTED: | |
4032 | #ifdef CONFIG_ACS | |
4033 | if (!wpa_s->ap_iface) | |
4034 | break; | |
4035 | hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0], | |
4036 | &data->acs_selected_channels); | |
4037 | #endif /* CONFIG_ACS */ | |
4038 | break; | |
4039 | default: | |
4040 | wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event); | |
4041 | break; | |
4042 | } | |
4043 | } | |
4044 | ||
4045 | ||
4046 | void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event, | |
4047 | union wpa_event_data *data) | |
4048 | { | |
4049 | struct wpa_supplicant *wpa_s; | |
4050 | ||
4051 | if (event != EVENT_INTERFACE_STATUS) | |
4052 | return; | |
4053 | ||
4054 | wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname); | |
4055 | if (wpa_s && wpa_s->driver->get_ifindex) { | |
4056 | unsigned int ifindex; | |
4057 | ||
4058 | ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv); | |
4059 | if (ifindex != data->interface_status.ifindex) { | |
4060 | wpa_dbg(wpa_s, MSG_DEBUG, | |
4061 | "interface status ifindex %d mismatch (%d)", | |
4062 | ifindex, data->interface_status.ifindex); | |
4063 | return; | |
4064 | } | |
4065 | } | |
4066 | #ifdef CONFIG_MATCH_IFACE | |
4067 | else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) { | |
4068 | struct wpa_interface *wpa_i; | |
4069 | ||
4070 | wpa_i = wpa_supplicant_match_iface( | |
4071 | ctx, data->interface_status.ifname); | |
4072 | if (!wpa_i) | |
4073 | return; | |
4074 | wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL); | |
4075 | os_free(wpa_i); | |
4076 | if (wpa_s) | |
4077 | wpa_s->matched = 1; | |
4078 | } | |
4079 | #endif /* CONFIG_MATCH_IFACE */ | |
4080 | ||
4081 | if (wpa_s) | |
4082 | wpa_supplicant_event(wpa_s, event, data); | |
4083 | } |