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Commit | Line | Data |
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6fc6879b JM |
1 | /* |
2 | * WPA Supplicant - Driver event processing | |
16a83d29 | 3 | * Copyright (c) 2003-2011, Jouni Malinen <j@w1.fi> |
6fc6879b JM |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License version 2 as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * Alternatively, this software may be distributed under the terms of BSD | |
10 | * license. | |
11 | * | |
12 | * See README and COPYING for more details. | |
13 | */ | |
14 | ||
15 | #include "includes.h" | |
16 | ||
17 | #include "common.h" | |
18 | #include "eapol_supp/eapol_supp_sm.h" | |
3acb5005 | 19 | #include "rsn_supp/wpa.h" |
6fc6879b | 20 | #include "eloop.h" |
6fc6879b JM |
21 | #include "config.h" |
22 | #include "l2_packet/l2_packet.h" | |
23 | #include "wpa_supplicant_i.h" | |
2d5b792d | 24 | #include "driver_i.h" |
6fc6879b | 25 | #include "pcsc_funcs.h" |
3acb5005 JM |
26 | #include "rsn_supp/preauth.h" |
27 | #include "rsn_supp/pmksa_cache.h" | |
90973fb2 | 28 | #include "common/wpa_ctrl.h" |
6fc6879b | 29 | #include "eap_peer/eap.h" |
1d041bec | 30 | #include "ap/hostapd.h" |
93b7ddd0 | 31 | #include "p2p/p2p.h" |
8bac466b | 32 | #include "notify.h" |
90973fb2 | 33 | #include "common/ieee802_11_defs.h" |
54f489be | 34 | #include "common/ieee802_11_common.h" |
bbb921da | 35 | #include "crypto/random.h" |
6fc6879b JM |
36 | #include "blacklist.h" |
37 | #include "wpas_glue.h" | |
351f09a2 | 38 | #include "wps_supplicant.h" |
11ef8d35 | 39 | #include "ibss_rsn.h" |
c2a04078 | 40 | #include "sme.h" |
9bae1be0 | 41 | #include "p2p_supplicant.h" |
60b94c98 | 42 | #include "bgscan.h" |
f8b1f695 | 43 | #include "ap.h" |
6fa81a3b | 44 | #include "bss.h" |
245519e0 | 45 | #include "mlme.h" |
9ba9fa07 | 46 | #include "scan.h" |
6fc6879b JM |
47 | |
48 | ||
49 | static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s) | |
50 | { | |
8bac466b | 51 | struct wpa_ssid *ssid, *old_ssid; |
6fc6879b JM |
52 | |
53 | if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) | |
54 | return 0; | |
55 | ||
f049052b BG |
56 | wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association " |
57 | "information"); | |
6fc6879b JM |
58 | ssid = wpa_supplicant_get_ssid(wpa_s); |
59 | if (ssid == NULL) { | |
f049052b BG |
60 | wpa_msg(wpa_s, MSG_INFO, |
61 | "No network configuration found for the current AP"); | |
6fc6879b JM |
62 | return -1; |
63 | } | |
64 | ||
65 | if (ssid->disabled) { | |
f049052b | 66 | wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled"); |
6fc6879b JM |
67 | return -1; |
68 | } | |
69 | ||
f049052b BG |
70 | wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the " |
71 | "current AP"); | |
6fc6879b JM |
72 | if (ssid->key_mgmt & (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X | |
73 | WPA_KEY_MGMT_WPA_NONE | | |
56586197 JM |
74 | WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_FT_IEEE8021X | |
75 | WPA_KEY_MGMT_PSK_SHA256 | | |
76 | WPA_KEY_MGMT_IEEE8021X_SHA256)) { | |
6fc6879b JM |
77 | u8 wpa_ie[80]; |
78 | size_t wpa_ie_len = sizeof(wpa_ie); | |
79 | wpa_supplicant_set_suites(wpa_s, NULL, ssid, | |
80 | wpa_ie, &wpa_ie_len); | |
81 | } else { | |
82 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
83 | } | |
84 | ||
85 | if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) | |
86 | eapol_sm_invalidate_cached_session(wpa_s->eapol); | |
8bac466b | 87 | old_ssid = wpa_s->current_ssid; |
6fc6879b JM |
88 | wpa_s->current_ssid = ssid; |
89 | wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); | |
90 | wpa_supplicant_initiate_eapol(wpa_s); | |
8bac466b JM |
91 | if (old_ssid != wpa_s->current_ssid) |
92 | wpas_notify_network_changed(wpa_s); | |
6fc6879b JM |
93 | |
94 | return 0; | |
95 | } | |
96 | ||
97 | ||
98 | static void wpa_supplicant_stop_countermeasures(void *eloop_ctx, | |
99 | void *sock_ctx) | |
100 | { | |
101 | struct wpa_supplicant *wpa_s = eloop_ctx; | |
102 | ||
103 | if (wpa_s->countermeasures) { | |
104 | wpa_s->countermeasures = 0; | |
105 | wpa_drv_set_countermeasures(wpa_s, 0); | |
106 | wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped"); | |
107 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
108 | } | |
109 | } | |
110 | ||
111 | ||
112 | void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s) | |
113 | { | |
8bac466b JM |
114 | int bssid_changed; |
115 | ||
8401a6b0 JM |
116 | if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) |
117 | return; | |
118 | ||
6fc6879b | 119 | wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); |
8bac466b | 120 | bssid_changed = !is_zero_ether_addr(wpa_s->bssid); |
6fc6879b JM |
121 | os_memset(wpa_s->bssid, 0, ETH_ALEN); |
122 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); | |
be8be671 | 123 | wpa_s->current_bss = NULL; |
3c85f144 | 124 | wpa_s->assoc_freq = 0; |
8bac466b JM |
125 | if (bssid_changed) |
126 | wpas_notify_bssid_changed(wpa_s); | |
127 | ||
6fc6879b JM |
128 | eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); |
129 | eapol_sm_notify_portValid(wpa_s->eapol, FALSE); | |
56586197 | 130 | if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) |
6fc6879b JM |
131 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); |
132 | wpa_s->ap_ies_from_associnfo = 0; | |
133 | } | |
134 | ||
135 | ||
136 | static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s) | |
137 | { | |
138 | struct wpa_ie_data ie; | |
139 | int pmksa_set = -1; | |
140 | size_t i; | |
141 | ||
142 | if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 || | |
143 | ie.pmkid == NULL) | |
144 | return; | |
145 | ||
146 | for (i = 0; i < ie.num_pmkid; i++) { | |
147 | pmksa_set = pmksa_cache_set_current(wpa_s->wpa, | |
148 | ie.pmkid + i * PMKID_LEN, | |
149 | NULL, NULL, 0); | |
150 | if (pmksa_set == 0) { | |
151 | eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1); | |
152 | break; | |
153 | } | |
154 | } | |
155 | ||
f049052b BG |
156 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from " |
157 | "PMKSA cache", pmksa_set == 0 ? "" : "not "); | |
6fc6879b JM |
158 | } |
159 | ||
160 | ||
161 | static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s, | |
162 | union wpa_event_data *data) | |
163 | { | |
164 | if (data == NULL) { | |
f049052b BG |
165 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate " |
166 | "event"); | |
6fc6879b JM |
167 | return; |
168 | } | |
f049052b BG |
169 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR |
170 | " index=%d preauth=%d", | |
171 | MAC2STR(data->pmkid_candidate.bssid), | |
172 | data->pmkid_candidate.index, | |
173 | data->pmkid_candidate.preauth); | |
6fc6879b JM |
174 | |
175 | pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid, | |
176 | data->pmkid_candidate.index, | |
177 | data->pmkid_candidate.preauth); | |
178 | } | |
179 | ||
180 | ||
181 | static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s) | |
182 | { | |
183 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || | |
184 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) | |
185 | return 0; | |
186 | ||
187 | #ifdef IEEE8021X_EAPOL | |
188 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA && | |
189 | wpa_s->current_ssid && | |
190 | !(wpa_s->current_ssid->eapol_flags & | |
191 | (EAPOL_FLAG_REQUIRE_KEY_UNICAST | | |
192 | EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) { | |
193 | /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either | |
194 | * plaintext or static WEP keys). */ | |
195 | return 0; | |
196 | } | |
197 | #endif /* IEEE8021X_EAPOL */ | |
198 | ||
199 | return 1; | |
200 | } | |
201 | ||
202 | ||
203 | /** | |
204 | * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC | |
205 | * @wpa_s: pointer to wpa_supplicant data | |
206 | * @ssid: Configuration data for the network | |
207 | * Returns: 0 on success, -1 on failure | |
208 | * | |
209 | * This function is called when starting authentication with a network that is | |
210 | * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA). | |
211 | */ | |
212 | int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s, | |
213 | struct wpa_ssid *ssid) | |
214 | { | |
215 | #ifdef IEEE8021X_EAPOL | |
216 | int aka = 0, sim = 0, type; | |
217 | ||
218 | if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL) | |
219 | return 0; | |
220 | ||
221 | if (ssid->eap.eap_methods == NULL) { | |
222 | sim = 1; | |
223 | aka = 1; | |
224 | } else { | |
225 | struct eap_method_type *eap = ssid->eap.eap_methods; | |
226 | while (eap->vendor != EAP_VENDOR_IETF || | |
227 | eap->method != EAP_TYPE_NONE) { | |
228 | if (eap->vendor == EAP_VENDOR_IETF) { | |
229 | if (eap->method == EAP_TYPE_SIM) | |
230 | sim = 1; | |
231 | else if (eap->method == EAP_TYPE_AKA) | |
232 | aka = 1; | |
233 | } | |
234 | eap++; | |
235 | } | |
236 | } | |
237 | ||
238 | if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL) | |
239 | sim = 0; | |
240 | if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL) | |
241 | aka = 0; | |
242 | ||
243 | if (!sim && !aka) { | |
f049052b BG |
244 | wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to " |
245 | "use SIM, but neither EAP-SIM nor EAP-AKA are " | |
246 | "enabled"); | |
6fc6879b JM |
247 | return 0; |
248 | } | |
249 | ||
f049052b BG |
250 | wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM " |
251 | "(sim=%d aka=%d) - initialize PCSC", sim, aka); | |
6fc6879b JM |
252 | if (sim && aka) |
253 | type = SCARD_TRY_BOTH; | |
254 | else if (aka) | |
255 | type = SCARD_USIM_ONLY; | |
256 | else | |
257 | type = SCARD_GSM_SIM_ONLY; | |
258 | ||
259 | wpa_s->scard = scard_init(type); | |
260 | if (wpa_s->scard == NULL) { | |
f049052b BG |
261 | wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM " |
262 | "(pcsc-lite)"); | |
6fc6879b JM |
263 | return -1; |
264 | } | |
265 | wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard); | |
266 | eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard); | |
267 | #endif /* IEEE8021X_EAPOL */ | |
268 | ||
269 | return 0; | |
270 | } | |
271 | ||
272 | ||
273 | #ifndef CONFIG_NO_SCAN_PROCESSING | |
274 | static int wpa_supplicant_match_privacy(struct wpa_scan_res *bss, | |
275 | struct wpa_ssid *ssid) | |
276 | { | |
277 | int i, privacy = 0; | |
278 | ||
279 | if (ssid->mixed_cell) | |
280 | return 1; | |
281 | ||
0632542b AT |
282 | #ifdef CONFIG_WPS |
283 | if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) | |
284 | return 1; | |
285 | #endif /* CONFIG_WPS */ | |
286 | ||
6fc6879b JM |
287 | for (i = 0; i < NUM_WEP_KEYS; i++) { |
288 | if (ssid->wep_key_len[i]) { | |
289 | privacy = 1; | |
290 | break; | |
291 | } | |
292 | } | |
293 | #ifdef IEEE8021X_EAPOL | |
294 | if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && | |
295 | ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST | | |
296 | EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) | |
297 | privacy = 1; | |
298 | #endif /* IEEE8021X_EAPOL */ | |
299 | ||
300 | if (bss->caps & IEEE80211_CAP_PRIVACY) | |
301 | return privacy; | |
302 | return !privacy; | |
303 | } | |
304 | ||
305 | ||
a6099152 JM |
306 | static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s, |
307 | struct wpa_ssid *ssid, | |
6fc6879b JM |
308 | struct wpa_scan_res *bss) |
309 | { | |
310 | struct wpa_ie_data ie; | |
311 | int proto_match = 0; | |
312 | const u8 *rsn_ie, *wpa_ie; | |
351f09a2 | 313 | int ret; |
43882f1e | 314 | int wep_ok; |
6fc6879b | 315 | |
a6099152 | 316 | ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss); |
351f09a2 JM |
317 | if (ret >= 0) |
318 | return ret; | |
ad08c363 | 319 | |
43882f1e JM |
320 | /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */ |
321 | wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) && | |
322 | (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) && | |
323 | ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) || | |
324 | (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)); | |
325 | ||
6fc6879b JM |
326 | rsn_ie = wpa_scan_get_ie(bss, WLAN_EID_RSN); |
327 | while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) { | |
328 | proto_match++; | |
329 | ||
330 | if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) { | |
f049052b BG |
331 | wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse " |
332 | "failed"); | |
6fc6879b JM |
333 | break; |
334 | } | |
43882f1e JM |
335 | |
336 | if (wep_ok && | |
337 | (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) | |
338 | { | |
f049052b BG |
339 | wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " |
340 | "in RSN IE"); | |
43882f1e JM |
341 | return 1; |
342 | } | |
343 | ||
6fc6879b | 344 | if (!(ie.proto & ssid->proto)) { |
f049052b BG |
345 | wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto " |
346 | "mismatch"); | |
6fc6879b JM |
347 | break; |
348 | } | |
349 | ||
350 | if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { | |
f049052b BG |
351 | wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK " |
352 | "cipher mismatch"); | |
6fc6879b JM |
353 | break; |
354 | } | |
355 | ||
356 | if (!(ie.group_cipher & ssid->group_cipher)) { | |
f049052b BG |
357 | wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK " |
358 | "cipher mismatch"); | |
6fc6879b JM |
359 | break; |
360 | } | |
361 | ||
362 | if (!(ie.key_mgmt & ssid->key_mgmt)) { | |
f049052b BG |
363 | wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt " |
364 | "mismatch"); | |
6fc6879b JM |
365 | break; |
366 | } | |
367 | ||
368 | #ifdef CONFIG_IEEE80211W | |
0b60b0aa | 369 | if (!(ie.capabilities & WPA_CAPABILITY_MFPC) && |
70f8cc8e | 370 | ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) { |
f049052b BG |
371 | wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt " |
372 | "frame protection"); | |
6fc6879b JM |
373 | break; |
374 | } | |
375 | #endif /* CONFIG_IEEE80211W */ | |
376 | ||
f049052b | 377 | wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE"); |
6fc6879b JM |
378 | return 1; |
379 | } | |
380 | ||
381 | wpa_ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); | |
382 | while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) { | |
383 | proto_match++; | |
384 | ||
385 | if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) { | |
f049052b BG |
386 | wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse " |
387 | "failed"); | |
6fc6879b JM |
388 | break; |
389 | } | |
43882f1e JM |
390 | |
391 | if (wep_ok && | |
392 | (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) | |
393 | { | |
f049052b BG |
394 | wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " |
395 | "in WPA IE"); | |
43882f1e JM |
396 | return 1; |
397 | } | |
398 | ||
6fc6879b | 399 | if (!(ie.proto & ssid->proto)) { |
f049052b BG |
400 | wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto " |
401 | "mismatch"); | |
6fc6879b JM |
402 | break; |
403 | } | |
404 | ||
405 | if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { | |
f049052b BG |
406 | wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK " |
407 | "cipher mismatch"); | |
6fc6879b JM |
408 | break; |
409 | } | |
410 | ||
411 | if (!(ie.group_cipher & ssid->group_cipher)) { | |
f049052b BG |
412 | wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK " |
413 | "cipher mismatch"); | |
6fc6879b JM |
414 | break; |
415 | } | |
416 | ||
417 | if (!(ie.key_mgmt & ssid->key_mgmt)) { | |
f049052b BG |
418 | wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt " |
419 | "mismatch"); | |
6fc6879b JM |
420 | break; |
421 | } | |
422 | ||
f049052b | 423 | wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE"); |
6fc6879b JM |
424 | return 1; |
425 | } | |
426 | ||
cc5e390d | 427 | if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) && |
df83fb7d | 428 | wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) { |
f049052b | 429 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match"); |
cc5e390d JM |
430 | return 0; |
431 | } | |
6fc6879b | 432 | |
cc5e390d JM |
433 | /* Allow in non-WPA configuration */ |
434 | return 1; | |
6fc6879b JM |
435 | } |
436 | ||
437 | ||
b766a9a2 JM |
438 | static int freq_allowed(int *freqs, int freq) |
439 | { | |
440 | int i; | |
441 | ||
442 | if (freqs == NULL) | |
443 | return 1; | |
444 | ||
445 | for (i = 0; freqs[i]; i++) | |
446 | if (freqs[i] == freq) | |
447 | return 1; | |
448 | return 0; | |
449 | } | |
450 | ||
451 | ||
d8d940b7 JM |
452 | static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s, |
453 | int i, struct wpa_scan_res *bss, | |
454 | struct wpa_ssid *group) | |
6fc6879b | 455 | { |
d8d940b7 JM |
456 | const u8 *ssid_; |
457 | u8 wpa_ie_len, rsn_ie_len, ssid_len; | |
458 | int wpa; | |
6fc6879b JM |
459 | struct wpa_blacklist *e; |
460 | const u8 *ie; | |
d8d940b7 | 461 | struct wpa_ssid *ssid; |
6fc6879b | 462 | |
d8d940b7 JM |
463 | ie = wpa_scan_get_ie(bss, WLAN_EID_SSID); |
464 | ssid_ = ie ? ie + 2 : (u8 *) ""; | |
465 | ssid_len = ie ? ie[1] : 0; | |
6fc6879b | 466 | |
d8d940b7 JM |
467 | ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); |
468 | wpa_ie_len = ie ? ie[1] : 0; | |
6fc6879b | 469 | |
d8d940b7 JM |
470 | ie = wpa_scan_get_ie(bss, WLAN_EID_RSN); |
471 | rsn_ie_len = ie ? ie[1] : 0; | |
6fc6879b | 472 | |
f049052b BG |
473 | wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' " |
474 | "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s", | |
475 | i, MAC2STR(bss->bssid), wpa_ssid_txt(ssid_, ssid_len), | |
476 | wpa_ie_len, rsn_ie_len, bss->caps, bss->level, | |
477 | wpa_scan_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : ""); | |
9cf32261 | 478 | |
d8d940b7 | 479 | e = wpa_blacklist_get(wpa_s, bss->bssid); |
5471c343 JM |
480 | if (e) { |
481 | int limit = 1; | |
482 | if (wpa_supplicant_enabled_networks(wpa_s->conf) == 1) { | |
483 | /* | |
484 | * When only a single network is enabled, we can | |
485 | * trigger blacklisting on the first failure. This | |
486 | * should not be done with multiple enabled networks to | |
487 | * avoid getting forced to move into a worse ESS on | |
488 | * single error if there are no other BSSes of the | |
489 | * current ESS. | |
490 | */ | |
491 | limit = 0; | |
492 | } | |
493 | if (e->count > limit) { | |
f049052b BG |
494 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " |
495 | "(count=%d limit=%d)", e->count, limit); | |
5471c343 JM |
496 | return 0; |
497 | } | |
d8d940b7 | 498 | } |
6fc6879b | 499 | |
d8d940b7 | 500 | if (ssid_len == 0) { |
f049052b | 501 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known"); |
d8d940b7 JM |
502 | return 0; |
503 | } | |
e81634cd | 504 | |
d8d940b7 | 505 | wpa = wpa_ie_len > 0 || rsn_ie_len > 0; |
6fc6879b | 506 | |
d8d940b7 JM |
507 | for (ssid = group; ssid; ssid = ssid->pnext) { |
508 | int check_ssid = wpa ? 1 : (ssid->ssid_len != 0); | |
ad08c363 | 509 | |
d8d940b7 | 510 | if (ssid->disabled) { |
f049052b | 511 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled"); |
0c703df3 | 512 | continue; |
d8d940b7 | 513 | } |
9cf32261 | 514 | |
ad08c363 | 515 | #ifdef CONFIG_WPS |
f648bc7d | 516 | if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) { |
f049052b BG |
517 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " |
518 | "(WPS)"); | |
f648bc7d JM |
519 | continue; |
520 | } | |
521 | ||
d8d940b7 JM |
522 | if (wpa && ssid->ssid_len == 0 && |
523 | wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) | |
524 | check_ssid = 0; | |
525 | ||
526 | if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { | |
527 | /* Only allow wildcard SSID match if an AP | |
528 | * advertises active WPS operation that matches | |
529 | * with our mode. */ | |
530 | check_ssid = 1; | |
ad08c363 | 531 | if (ssid->ssid_len == 0 && |
a6099152 | 532 | wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) |
ad08c363 | 533 | check_ssid = 0; |
d8d940b7 | 534 | } |
ad08c363 JM |
535 | #endif /* CONFIG_WPS */ |
536 | ||
d8d940b7 JM |
537 | if (check_ssid && |
538 | (ssid_len != ssid->ssid_len || | |
539 | os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) { | |
f049052b | 540 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch"); |
0c703df3 | 541 | continue; |
6fc6879b | 542 | } |
6fc6879b | 543 | |
d8d940b7 JM |
544 | if (ssid->bssid_set && |
545 | os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) { | |
f049052b | 546 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch"); |
0c703df3 | 547 | continue; |
d8d940b7 | 548 | } |
6fc6879b | 549 | |
cc5e390d | 550 | if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss)) |
0c703df3 | 551 | continue; |
9cf32261 | 552 | |
d8d940b7 JM |
553 | if (!wpa && |
554 | !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) && | |
555 | !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) && | |
556 | !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) { | |
f049052b BG |
557 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network " |
558 | "not allowed"); | |
0c703df3 | 559 | continue; |
6fc6879b | 560 | } |
9cf32261 | 561 | |
d8d940b7 | 562 | if (!wpa && !wpa_supplicant_match_privacy(bss, ssid)) { |
f049052b BG |
563 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy " |
564 | "mismatch"); | |
0c703df3 | 565 | continue; |
e81634cd JM |
566 | } |
567 | ||
d8d940b7 | 568 | if (!wpa && (bss->caps & IEEE80211_CAP_IBSS)) { |
f049052b BG |
569 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - IBSS (adhoc) " |
570 | "network"); | |
0c703df3 | 571 | continue; |
d8d940b7 | 572 | } |
b766a9a2 | 573 | |
d8d940b7 | 574 | if (!freq_allowed(ssid->freq_list, bss->freq)) { |
f049052b BG |
575 | wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not " |
576 | "allowed"); | |
0c703df3 | 577 | continue; |
6fc6879b | 578 | } |
d8d940b7 | 579 | |
73e49269 JM |
580 | #ifdef CONFIG_P2P |
581 | /* | |
582 | * TODO: skip the AP if its P2P IE has Group Formation | |
583 | * bit set in the P2P Group Capability Bitmap and we | |
584 | * are not in Group Formation with that device. | |
585 | */ | |
586 | #endif /* CONFIG_P2P */ | |
587 | ||
d8d940b7 JM |
588 | /* Matching configuration found */ |
589 | return ssid; | |
6fc6879b JM |
590 | } |
591 | ||
d8d940b7 JM |
592 | /* No matching configuration found */ |
593 | return 0; | |
9cf32261 JM |
594 | } |
595 | ||
596 | ||
6fa81a3b | 597 | static struct wpa_bss * |
a1fd2ce5 JM |
598 | wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s, |
599 | struct wpa_scan_results *scan_res, | |
600 | struct wpa_ssid *group, | |
9cf32261 JM |
601 | struct wpa_ssid **selected_ssid) |
602 | { | |
d8d940b7 | 603 | size_t i; |
9cf32261 | 604 | |
f049052b BG |
605 | wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d", |
606 | group->priority); | |
9cf32261 | 607 | |
d8d940b7 JM |
608 | for (i = 0; i < scan_res->num; i++) { |
609 | struct wpa_scan_res *bss = scan_res->res[i]; | |
610 | const u8 *ie, *ssid; | |
611 | u8 ssid_len; | |
612 | ||
613 | *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group); | |
614 | if (!*selected_ssid) | |
615 | continue; | |
616 | ||
617 | ie = wpa_scan_get_ie(bss, WLAN_EID_SSID); | |
618 | ssid = ie ? ie + 2 : (u8 *) ""; | |
619 | ssid_len = ie ? ie[1] : 0; | |
9cf32261 | 620 | |
f049052b BG |
621 | wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR |
622 | " ssid='%s'", | |
623 | MAC2STR(bss->bssid), wpa_ssid_txt(ssid, ssid_len)); | |
d8d940b7 JM |
624 | return wpa_bss_get(wpa_s, bss->bssid, ssid, ssid_len); |
625 | } | |
626 | ||
627 | return NULL; | |
6fc6879b JM |
628 | } |
629 | ||
630 | ||
6fa81a3b | 631 | static struct wpa_bss * |
09b9df4e | 632 | wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s, |
a1fd2ce5 | 633 | struct wpa_scan_results *scan_res, |
09b9df4e | 634 | struct wpa_ssid **selected_ssid) |
6fc6879b | 635 | { |
6fa81a3b | 636 | struct wpa_bss *selected = NULL; |
09b9df4e JM |
637 | int prio; |
638 | ||
639 | while (selected == NULL) { | |
640 | for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { | |
641 | selected = wpa_supplicant_select_bss( | |
a1fd2ce5 | 642 | wpa_s, scan_res, wpa_s->conf->pssid[prio], |
09b9df4e JM |
643 | selected_ssid); |
644 | if (selected) | |
645 | break; | |
646 | } | |
647 | ||
648 | if (selected == NULL && wpa_s->blacklist) { | |
f049052b BG |
649 | wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear " |
650 | "blacklist and try again"); | |
09b9df4e JM |
651 | wpa_blacklist_clear(wpa_s); |
652 | wpa_s->blacklist_cleared++; | |
653 | } else if (selected == NULL) | |
654 | break; | |
655 | } | |
656 | ||
657 | return selected; | |
658 | } | |
659 | ||
660 | ||
661 | static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s, | |
977b1174 | 662 | int timeout_sec, int timeout_usec) |
09b9df4e | 663 | { |
24f76940 | 664 | if (!wpa_supplicant_enabled_networks(wpa_s->conf)) { |
4f34d51a SL |
665 | /* |
666 | * No networks are enabled; short-circuit request so | |
667 | * we don't wait timeout seconds before transitioning | |
668 | * to INACTIVE state. | |
669 | */ | |
670 | wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); | |
671 | return; | |
09b9df4e | 672 | } |
977b1174 | 673 | wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec); |
09b9df4e JM |
674 | } |
675 | ||
676 | ||
86d4f806 JM |
677 | void wpa_supplicant_connect(struct wpa_supplicant *wpa_s, |
678 | struct wpa_bss *selected, | |
679 | struct wpa_ssid *ssid) | |
09b9df4e JM |
680 | { |
681 | if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) { | |
682 | wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP | |
683 | "PBC session overlap"); | |
b73bf0a7 JM |
684 | #ifdef CONFIG_P2P |
685 | if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1) | |
686 | return; | |
687 | #endif /* CONFIG_P2P */ | |
199716ad BG |
688 | |
689 | #ifdef CONFIG_WPS | |
7736f18b | 690 | wpas_wps_cancel(wpa_s); |
199716ad | 691 | #endif /* CONFIG_WPS */ |
09b9df4e JM |
692 | return; |
693 | } | |
694 | ||
695 | /* | |
696 | * Do not trigger new association unless the BSSID has changed or if | |
697 | * reassociation is requested. If we are in process of associating with | |
698 | * the selected BSSID, do not trigger new attempt. | |
699 | */ | |
700 | if (wpa_s->reassociate || | |
701 | (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 && | |
e29853bb BG |
702 | ((wpa_s->wpa_state != WPA_ASSOCIATING && |
703 | wpa_s->wpa_state != WPA_AUTHENTICATING) || | |
09b9df4e JM |
704 | os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) != |
705 | 0))) { | |
706 | if (wpa_supplicant_scard_init(wpa_s, ssid)) { | |
977b1174 | 707 | wpa_supplicant_req_new_scan(wpa_s, 10, 0); |
09b9df4e JM |
708 | return; |
709 | } | |
e29853bb BG |
710 | wpa_msg(wpa_s, MSG_DEBUG, "Request association: " |
711 | "reassociate: %d selected: "MACSTR " bssid: " MACSTR | |
712 | " pending: " MACSTR " wpa_state: %s", | |
713 | wpa_s->reassociate, MAC2STR(selected->bssid), | |
714 | MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid), | |
715 | wpa_supplicant_state_txt(wpa_s->wpa_state)); | |
09b9df4e JM |
716 | wpa_supplicant_associate(wpa_s, selected, ssid); |
717 | } else { | |
f049052b BG |
718 | wpa_dbg(wpa_s, MSG_DEBUG, "Already associated with the " |
719 | "selected AP"); | |
09b9df4e | 720 | } |
09b9df4e JM |
721 | } |
722 | ||
723 | ||
b55aaa5f JM |
724 | static struct wpa_ssid * |
725 | wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s) | |
726 | { | |
727 | int prio; | |
728 | struct wpa_ssid *ssid; | |
729 | ||
730 | for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { | |
731 | for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext) | |
732 | { | |
733 | if (ssid->disabled) | |
734 | continue; | |
735 | if (ssid->mode == IEEE80211_MODE_IBSS || | |
736 | ssid->mode == IEEE80211_MODE_AP) | |
737 | return ssid; | |
738 | } | |
739 | } | |
740 | return NULL; | |
741 | } | |
742 | ||
743 | ||
a1fd2ce5 JM |
744 | /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based |
745 | * on BSS added and BSS changed events */ | |
6ae93185 | 746 | static void wpa_supplicant_rsn_preauth_scan_results( |
a1fd2ce5 | 747 | struct wpa_supplicant *wpa_s, struct wpa_scan_results *scan_res) |
6ae93185 JM |
748 | { |
749 | int i; | |
750 | ||
751 | if (rsn_preauth_scan_results(wpa_s->wpa) < 0) | |
752 | return; | |
753 | ||
a1fd2ce5 | 754 | for (i = scan_res->num - 1; i >= 0; i--) { |
6ae93185 JM |
755 | const u8 *ssid, *rsn; |
756 | struct wpa_scan_res *r; | |
757 | ||
a1fd2ce5 | 758 | r = scan_res->res[i]; |
6ae93185 JM |
759 | |
760 | ssid = wpa_scan_get_ie(r, WLAN_EID_SSID); | |
761 | if (ssid == NULL) | |
762 | continue; | |
763 | ||
764 | rsn = wpa_scan_get_ie(r, WLAN_EID_RSN); | |
765 | if (rsn == NULL) | |
766 | continue; | |
767 | ||
768 | rsn_preauth_scan_result(wpa_s->wpa, r->bssid, ssid, rsn); | |
769 | } | |
770 | ||
771 | } | |
772 | ||
773 | ||
48563d86 JM |
774 | static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s, |
775 | struct wpa_bss *selected, | |
776 | struct wpa_ssid *ssid, | |
777 | struct wpa_scan_results *scan_res) | |
778 | { | |
779 | size_t i; | |
780 | struct wpa_scan_res *current_bss = NULL; | |
781 | int min_diff; | |
782 | ||
783 | if (wpa_s->reassociate) | |
784 | return 1; /* explicit request to reassociate */ | |
785 | if (wpa_s->wpa_state < WPA_ASSOCIATED) | |
786 | return 1; /* we are not associated; continue */ | |
787 | if (wpa_s->current_ssid == NULL) | |
788 | return 1; /* unknown current SSID */ | |
789 | if (wpa_s->current_ssid != ssid) | |
790 | return 1; /* different network block */ | |
791 | ||
792 | for (i = 0; i < scan_res->num; i++) { | |
793 | struct wpa_scan_res *res = scan_res->res[i]; | |
794 | const u8 *ie; | |
795 | if (os_memcmp(res->bssid, wpa_s->bssid, ETH_ALEN) != 0) | |
796 | continue; | |
797 | ||
798 | ie = wpa_scan_get_ie(res, WLAN_EID_SSID); | |
799 | if (ie == NULL) | |
800 | continue; | |
801 | if (ie[1] != wpa_s->current_ssid->ssid_len || | |
802 | os_memcmp(ie + 2, wpa_s->current_ssid->ssid, ie[1]) != 0) | |
803 | continue; | |
804 | current_bss = res; | |
805 | break; | |
806 | } | |
807 | ||
808 | if (!current_bss) | |
809 | return 1; /* current BSS not seen in scan results */ | |
810 | ||
f049052b BG |
811 | wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation"); |
812 | wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d", | |
813 | MAC2STR(current_bss->bssid), current_bss->level); | |
814 | wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d", | |
815 | MAC2STR(selected->bssid), selected->level); | |
48563d86 | 816 | |
ac26ebd8 JM |
817 | if (wpa_s->current_ssid->bssid_set && |
818 | os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) == | |
819 | 0) { | |
f049052b BG |
820 | wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS " |
821 | "has preferred BSSID"); | |
ac26ebd8 JM |
822 | return 1; |
823 | } | |
824 | ||
48563d86 JM |
825 | min_diff = 2; |
826 | if (current_bss->level < 0) { | |
827 | if (current_bss->level < -85) | |
828 | min_diff = 1; | |
829 | else if (current_bss->level < -80) | |
830 | min_diff = 2; | |
831 | else if (current_bss->level < -75) | |
832 | min_diff = 3; | |
833 | else if (current_bss->level < -70) | |
834 | min_diff = 4; | |
835 | else | |
836 | min_diff = 5; | |
837 | } | |
838 | if (abs(current_bss->level - selected->level) < min_diff) { | |
f049052b BG |
839 | wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference " |
840 | "in signal level"); | |
48563d86 JM |
841 | return 0; |
842 | } | |
843 | ||
844 | return 1; | |
845 | } | |
846 | ||
e1504976 BG |
847 | /* Return < 0 if no scan results could be fetched. */ |
848 | static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, | |
849 | union wpa_event_data *data) | |
09b9df4e | 850 | { |
6fa81a3b | 851 | struct wpa_bss *selected; |
6fc6879b | 852 | struct wpa_ssid *ssid = NULL; |
a1fd2ce5 | 853 | struct wpa_scan_results *scan_res; |
5bc0cdb7 JM |
854 | int ap = 0; |
855 | ||
856 | #ifdef CONFIG_AP | |
857 | if (wpa_s->ap_iface) | |
858 | ap = 1; | |
859 | #endif /* CONFIG_AP */ | |
6fc6879b | 860 | |
cb8564b1 DW |
861 | wpa_supplicant_notify_scanning(wpa_s, 0); |
862 | ||
a1fd2ce5 JM |
863 | scan_res = wpa_supplicant_get_scan_results(wpa_s, |
864 | data ? &data->scan_info : | |
865 | NULL, 1); | |
866 | if (scan_res == NULL) { | |
5bc0cdb7 | 867 | if (wpa_s->conf->ap_scan == 2 || ap) |
e1504976 | 868 | return -1; |
f049052b BG |
869 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try " |
870 | "scanning again"); | |
977b1174 | 871 | wpa_supplicant_req_new_scan(wpa_s, 1, 0); |
e1504976 | 872 | return -1; |
6fc6879b JM |
873 | } |
874 | ||
bbb921da JM |
875 | #ifndef CONFIG_NO_RANDOM_POOL |
876 | size_t i, num; | |
877 | num = scan_res->num; | |
878 | if (num > 10) | |
879 | num = 10; | |
880 | for (i = 0; i < num; i++) { | |
881 | u8 buf[5]; | |
882 | struct wpa_scan_res *res = scan_res->res[i]; | |
883 | buf[0] = res->bssid[5]; | |
884 | buf[1] = res->qual & 0xff; | |
885 | buf[2] = res->noise & 0xff; | |
886 | buf[3] = res->level & 0xff; | |
887 | buf[4] = res->tsf & 0xff; | |
888 | random_add_randomness(buf, sizeof(buf)); | |
889 | } | |
890 | #endif /* CONFIG_NO_RANDOM_POOL */ | |
891 | ||
64e58f51 | 892 | if (wpa_s->scan_res_handler) { |
860fddbb JB |
893 | void (*scan_res_handler)(struct wpa_supplicant *wpa_s, |
894 | struct wpa_scan_results *scan_res); | |
895 | ||
896 | scan_res_handler = wpa_s->scan_res_handler; | |
64e58f51 | 897 | wpa_s->scan_res_handler = NULL; |
860fddbb JB |
898 | scan_res_handler(wpa_s, scan_res); |
899 | ||
64e58f51 | 900 | wpa_scan_results_free(scan_res); |
e1504976 | 901 | return 0; |
64e58f51 JM |
902 | } |
903 | ||
5bc0cdb7 | 904 | if (ap) { |
f049052b | 905 | wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode"); |
5bc0cdb7 | 906 | wpa_scan_results_free(scan_res); |
e1504976 | 907 | return 0; |
5bc0cdb7 JM |
908 | } |
909 | ||
f049052b | 910 | wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available"); |
24f76940 JM |
911 | wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS); |
912 | wpas_notify_scan_results(wpa_s); | |
6fc6879b | 913 | |
8bac466b JM |
914 | wpas_notify_scan_done(wpa_s, 1); |
915 | ||
a1fd2ce5 JM |
916 | if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) { |
917 | wpa_scan_results_free(scan_res); | |
e1504976 | 918 | return 0; |
a1fd2ce5 | 919 | } |
6fc6879b | 920 | |
3180d7a2 SO |
921 | if (wpa_s->disconnected) { |
922 | wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); | |
a1fd2ce5 | 923 | wpa_scan_results_free(scan_res); |
e1504976 | 924 | return 0; |
3180d7a2 SO |
925 | } |
926 | ||
c2594c36 | 927 | if (bgscan_notify_scan(wpa_s, scan_res) == 1) { |
a1fd2ce5 | 928 | wpa_scan_results_free(scan_res); |
e1504976 | 929 | return 0; |
a1fd2ce5 JM |
930 | } |
931 | ||
932 | wpa_supplicant_rsn_preauth_scan_results(wpa_s, scan_res); | |
60b94c98 | 933 | |
a1fd2ce5 | 934 | selected = wpa_supplicant_pick_network(wpa_s, scan_res, &ssid); |
6ae93185 | 935 | |
6fc6879b | 936 | if (selected) { |
48563d86 JM |
937 | int skip; |
938 | skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid, | |
939 | scan_res); | |
940 | wpa_scan_results_free(scan_res); | |
941 | if (skip) | |
e1504976 | 942 | return 0; |
09b9df4e | 943 | wpa_supplicant_connect(wpa_s, selected, ssid); |
6fc6879b | 944 | } else { |
48563d86 | 945 | wpa_scan_results_free(scan_res); |
f049052b | 946 | wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found"); |
b55aaa5f JM |
947 | ssid = wpa_supplicant_pick_new_network(wpa_s); |
948 | if (ssid) { | |
f049052b | 949 | wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network"); |
b55aaa5f | 950 | wpa_supplicant_associate(wpa_s, NULL, ssid); |
977b1174 JM |
951 | } else { |
952 | int timeout_sec = 5; | |
953 | int timeout_usec = 0; | |
0817de90 JM |
954 | #ifdef CONFIG_P2P |
955 | if (wpa_s->p2p_in_provisioning) { | |
956 | /* | |
957 | * Use shorter wait during P2P Provisioning | |
958 | * state to speed up group formation. | |
959 | */ | |
960 | timeout_sec = 0; | |
961 | timeout_usec = 250000; | |
962 | } | |
963 | #endif /* CONFIG_P2P */ | |
977b1174 JM |
964 | wpa_supplicant_req_new_scan(wpa_s, timeout_sec, |
965 | timeout_usec); | |
966 | } | |
6fc6879b | 967 | } |
e1504976 | 968 | return 0; |
6fc6879b | 969 | } |
6859f1cb BG |
970 | |
971 | ||
972 | static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, | |
973 | union wpa_event_data *data) | |
974 | { | |
975 | const char *rn, *rn2; | |
976 | struct wpa_supplicant *ifs; | |
977 | ||
e1504976 BG |
978 | if (_wpa_supplicant_event_scan_results(wpa_s, data) < 0) { |
979 | /* | |
980 | * If no scan results could be fetched, then no need to | |
981 | * notify those interfaces that did not actually request | |
982 | * this scan. | |
983 | */ | |
984 | return; | |
985 | } | |
6859f1cb BG |
986 | |
987 | /* | |
988 | * Check other interfaces to see if they have the same radio-name. If | |
989 | * so, they get updated with this same scan info. | |
990 | */ | |
991 | if (!wpa_s->driver->get_radio_name) | |
992 | return; | |
993 | ||
994 | rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv); | |
995 | if (rn == NULL || rn[0] == '\0') | |
996 | return; | |
997 | ||
f049052b BG |
998 | wpa_dbg(wpa_s, MSG_DEBUG, "Checking for other virtual interfaces " |
999 | "sharing same radio (%s) in event_scan_results", rn); | |
6859f1cb BG |
1000 | |
1001 | for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) { | |
1002 | if (ifs == wpa_s || !ifs->driver->get_radio_name) | |
1003 | continue; | |
1004 | ||
1005 | rn2 = ifs->driver->get_radio_name(ifs->drv_priv); | |
1006 | if (rn2 && os_strcmp(rn, rn2) == 0) { | |
1007 | wpa_printf(MSG_DEBUG, "%s: Updating scan results from " | |
1008 | "sibling", ifs->ifname); | |
1009 | _wpa_supplicant_event_scan_results(ifs, data); | |
1010 | } | |
1011 | } | |
1012 | } | |
1013 | ||
6fc6879b JM |
1014 | #endif /* CONFIG_NO_SCAN_PROCESSING */ |
1015 | ||
1016 | ||
579ce771 JM |
1017 | static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s, |
1018 | union wpa_event_data *data) | |
6fc6879b JM |
1019 | { |
1020 | int l, len, found = 0, wpa_found, rsn_found; | |
c2a04078 | 1021 | const u8 *p; |
6fc6879b | 1022 | |
f049052b | 1023 | wpa_dbg(wpa_s, MSG_DEBUG, "Association info event"); |
6fc6879b JM |
1024 | if (data->assoc_info.req_ies) |
1025 | wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies, | |
1026 | data->assoc_info.req_ies_len); | |
1027 | if (data->assoc_info.resp_ies) | |
1028 | wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies, | |
1029 | data->assoc_info.resp_ies_len); | |
1030 | if (data->assoc_info.beacon_ies) | |
1031 | wpa_hexdump(MSG_DEBUG, "beacon_ies", | |
1032 | data->assoc_info.beacon_ies, | |
1033 | data->assoc_info.beacon_ies_len); | |
4832ecd7 | 1034 | if (data->assoc_info.freq) |
f049052b BG |
1035 | wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz", |
1036 | data->assoc_info.freq); | |
6fc6879b JM |
1037 | |
1038 | p = data->assoc_info.req_ies; | |
1039 | l = data->assoc_info.req_ies_len; | |
1040 | ||
1041 | /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */ | |
1042 | while (p && l >= 2) { | |
1043 | len = p[1] + 2; | |
1044 | if (len > l) { | |
1045 | wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", | |
1046 | p, l); | |
1047 | break; | |
1048 | } | |
1049 | if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && | |
1050 | (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) || | |
1051 | (p[0] == WLAN_EID_RSN && p[1] >= 2)) { | |
1052 | if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len)) | |
1053 | break; | |
1054 | found = 1; | |
1055 | wpa_find_assoc_pmkid(wpa_s); | |
1056 | break; | |
1057 | } | |
1058 | l -= len; | |
1059 | p += len; | |
1060 | } | |
1061 | if (!found && data->assoc_info.req_ies) | |
1062 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); | |
1063 | ||
c2a04078 | 1064 | #ifdef CONFIG_IEEE80211R |
62c72d72 JM |
1065 | #ifdef CONFIG_SME |
1066 | if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) { | |
1067 | u8 bssid[ETH_ALEN]; | |
1068 | if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || | |
1069 | wpa_ft_validate_reassoc_resp(wpa_s->wpa, | |
1070 | data->assoc_info.resp_ies, | |
1071 | data->assoc_info.resp_ies_len, | |
1072 | bssid) < 0) { | |
f049052b BG |
1073 | wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " |
1074 | "Reassociation Response failed"); | |
579ce771 JM |
1075 | wpa_supplicant_deauthenticate( |
1076 | wpa_s, WLAN_REASON_INVALID_IE); | |
1077 | return -1; | |
62c72d72 JM |
1078 | } |
1079 | } | |
62c72d72 | 1080 | |
c2a04078 JM |
1081 | p = data->assoc_info.resp_ies; |
1082 | l = data->assoc_info.resp_ies_len; | |
1083 | ||
54f489be JM |
1084 | #ifdef CONFIG_WPS_STRICT |
1085 | if (wpa_s->current_ssid && | |
1086 | wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) { | |
1087 | struct wpabuf *wps; | |
1088 | wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE); | |
1089 | if (wps == NULL) { | |
f049052b BG |
1090 | wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not " |
1091 | "include WPS IE in (Re)Association Response"); | |
54f489be JM |
1092 | return -1; |
1093 | } | |
1094 | ||
1095 | if (wps_validate_assoc_resp(wps) < 0) { | |
1096 | wpabuf_free(wps); | |
1097 | wpa_supplicant_deauthenticate( | |
1098 | wpa_s, WLAN_REASON_INVALID_IE); | |
1099 | return -1; | |
1100 | } | |
1101 | wpabuf_free(wps); | |
1102 | } | |
1103 | #endif /* CONFIG_WPS_STRICT */ | |
1104 | ||
e7846b68 | 1105 | /* Go through the IEs and make a copy of the MDIE, if present. */ |
c2a04078 JM |
1106 | while (p && l >= 2) { |
1107 | len = p[1] + 2; | |
1108 | if (len > l) { | |
1109 | wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", | |
1110 | p, l); | |
1111 | break; | |
1112 | } | |
e7846b68 JM |
1113 | if (p[0] == WLAN_EID_MOBILITY_DOMAIN && |
1114 | p[1] >= MOBILITY_DOMAIN_ID_LEN) { | |
1115 | wpa_s->sme.ft_used = 1; | |
1116 | os_memcpy(wpa_s->sme.mobility_domain, p + 2, | |
1117 | MOBILITY_DOMAIN_ID_LEN); | |
1118 | break; | |
1119 | } | |
c2a04078 JM |
1120 | l -= len; |
1121 | p += len; | |
1122 | } | |
e7846b68 | 1123 | #endif /* CONFIG_SME */ |
c2a04078 | 1124 | |
e7846b68 JM |
1125 | wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies, |
1126 | data->assoc_info.resp_ies_len); | |
c2a04078 JM |
1127 | #endif /* CONFIG_IEEE80211R */ |
1128 | ||
6fc6879b JM |
1129 | /* WPA/RSN IE from Beacon/ProbeResp */ |
1130 | p = data->assoc_info.beacon_ies; | |
1131 | l = data->assoc_info.beacon_ies_len; | |
1132 | ||
1133 | /* Go through the IEs and make a copy of the WPA/RSN IEs, if present. | |
1134 | */ | |
1135 | wpa_found = rsn_found = 0; | |
1136 | while (p && l >= 2) { | |
1137 | len = p[1] + 2; | |
1138 | if (len > l) { | |
1139 | wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies", | |
1140 | p, l); | |
1141 | break; | |
1142 | } | |
1143 | if (!wpa_found && | |
1144 | p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && | |
1145 | os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) { | |
1146 | wpa_found = 1; | |
1147 | wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len); | |
1148 | } | |
1149 | ||
1150 | if (!rsn_found && | |
1151 | p[0] == WLAN_EID_RSN && p[1] >= 2) { | |
1152 | rsn_found = 1; | |
1153 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len); | |
1154 | } | |
1155 | ||
1156 | l -= len; | |
1157 | p += len; | |
1158 | } | |
1159 | ||
1160 | if (!wpa_found && data->assoc_info.beacon_ies) | |
1161 | wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); | |
1162 | if (!rsn_found && data->assoc_info.beacon_ies) | |
1163 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); | |
1164 | if (wpa_found || rsn_found) | |
1165 | wpa_s->ap_ies_from_associnfo = 1; | |
4832ecd7 JM |
1166 | |
1167 | wpa_s->assoc_freq = data->assoc_info.freq; | |
579ce771 JM |
1168 | |
1169 | return 0; | |
6fc6879b JM |
1170 | } |
1171 | ||
1172 | ||
1173 | static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s, | |
1174 | union wpa_event_data *data) | |
1175 | { | |
1176 | u8 bssid[ETH_ALEN]; | |
1d041bec | 1177 | int ft_completed; |
8bac466b | 1178 | int bssid_changed; |
0194fedb | 1179 | struct wpa_driver_capa capa; |
6fc6879b | 1180 | |
1d041bec JM |
1181 | #ifdef CONFIG_AP |
1182 | if (wpa_s->ap_iface) { | |
1183 | hostapd_notif_assoc(wpa_s->ap_iface->bss[0], | |
1184 | data->assoc_info.addr, | |
1185 | data->assoc_info.req_ies, | |
1186 | data->assoc_info.req_ies_len); | |
1187 | return; | |
1188 | } | |
1189 | #endif /* CONFIG_AP */ | |
1190 | ||
1191 | ft_completed = wpa_ft_is_completed(wpa_s->wpa); | |
579ce771 JM |
1192 | if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0) |
1193 | return; | |
6fc6879b JM |
1194 | |
1195 | wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED); | |
c2a04078 | 1196 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) |
6fc6879b | 1197 | os_memcpy(bssid, wpa_s->bssid, ETH_ALEN); |
c2a04078 | 1198 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) || |
6fc6879b JM |
1199 | (wpa_drv_get_bssid(wpa_s, bssid) >= 0 && |
1200 | os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0)) { | |
f049052b | 1201 | wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID=" |
6fc6879b | 1202 | MACSTR, MAC2STR(bssid)); |
bbb921da | 1203 | random_add_randomness(bssid, ETH_ALEN); |
8bac466b | 1204 | bssid_changed = os_memcmp(wpa_s->bssid, bssid, ETH_ALEN); |
6fc6879b JM |
1205 | os_memcpy(wpa_s->bssid, bssid, ETH_ALEN); |
1206 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); | |
8bac466b JM |
1207 | if (bssid_changed) |
1208 | wpas_notify_bssid_changed(wpa_s); | |
1209 | ||
6fc6879b JM |
1210 | if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) { |
1211 | wpa_clear_keys(wpa_s, bssid); | |
1212 | } | |
1213 | if (wpa_supplicant_select_config(wpa_s) < 0) { | |
1214 | wpa_supplicant_disassociate( | |
1215 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
1216 | return; | |
1217 | } | |
8f770587 JM |
1218 | if (wpa_s->current_ssid) { |
1219 | struct wpa_bss *bss = NULL; | |
1220 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
1221 | if (ssid->ssid_len > 0) | |
1222 | bss = wpa_bss_get(wpa_s, bssid, | |
1223 | ssid->ssid, ssid->ssid_len); | |
1224 | if (!bss) | |
1225 | bss = wpa_bss_get_bssid(wpa_s, bssid); | |
1226 | if (bss) | |
1227 | wpa_s->current_bss = bss; | |
1228 | } | |
6fc6879b JM |
1229 | } |
1230 | ||
62fa124c JM |
1231 | #ifdef CONFIG_SME |
1232 | os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN); | |
1233 | wpa_s->sme.prev_bssid_set = 1; | |
1234 | #endif /* CONFIG_SME */ | |
1235 | ||
6fc6879b JM |
1236 | wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid)); |
1237 | if (wpa_s->current_ssid) { | |
1238 | /* When using scanning (ap_scan=1), SIM PC/SC interface can be | |
1239 | * initialized before association, but for other modes, | |
1240 | * initialize PC/SC here, if the current configuration needs | |
1241 | * smartcard or SIM/USIM. */ | |
1242 | wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid); | |
1243 | } | |
1244 | wpa_sm_notify_assoc(wpa_s->wpa, bssid); | |
3f967fe0 JM |
1245 | if (wpa_s->l2) |
1246 | l2_packet_notify_auth_start(wpa_s->l2); | |
6fc6879b JM |
1247 | |
1248 | /* | |
1249 | * Set portEnabled first to FALSE in order to get EAP state machine out | |
1250 | * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE | |
1251 | * state machine may transit to AUTHENTICATING state based on obsolete | |
1252 | * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to | |
1253 | * AUTHENTICATED without ever giving chance to EAP state machine to | |
1254 | * reset the state. | |
1255 | */ | |
1256 | if (!ft_completed) { | |
1257 | eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); | |
1258 | eapol_sm_notify_portValid(wpa_s->eapol, FALSE); | |
1259 | } | |
56586197 | 1260 | if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed) |
6fc6879b JM |
1261 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); |
1262 | /* 802.1X::portControl = Auto */ | |
1263 | eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE); | |
1264 | wpa_s->eapol_received = 0; | |
1265 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || | |
9c972abb JM |
1266 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE || |
1267 | (wpa_s->current_ssid && | |
1268 | wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) { | |
6fc6879b JM |
1269 | wpa_supplicant_cancel_auth_timeout(wpa_s); |
1270 | wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); | |
1271 | } else if (!ft_completed) { | |
1272 | /* Timeout for receiving the first EAPOL packet */ | |
1273 | wpa_supplicant_req_auth_timeout(wpa_s, 10, 0); | |
1274 | } | |
1275 | wpa_supplicant_cancel_scan(wpa_s); | |
1276 | ||
c2a04078 | 1277 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && |
56586197 | 1278 | wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { |
6fc6879b JM |
1279 | /* |
1280 | * We are done; the driver will take care of RSN 4-way | |
1281 | * handshake. | |
1282 | */ | |
1283 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
1284 | wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); | |
1285 | eapol_sm_notify_portValid(wpa_s->eapol, TRUE); | |
1286 | eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); | |
98ea9431 JM |
1287 | } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && |
1288 | wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { | |
1289 | /* | |
1290 | * The driver will take care of RSN 4-way handshake, so we need | |
1291 | * to allow EAPOL supplicant to complete its work without | |
1292 | * waiting for WPA supplicant. | |
1293 | */ | |
1294 | eapol_sm_notify_portValid(wpa_s->eapol, TRUE); | |
16a83d29 JM |
1295 | } else if (ft_completed) { |
1296 | /* | |
1297 | * FT protocol completed - make sure EAPOL state machine ends | |
1298 | * up in authenticated. | |
1299 | */ | |
1300 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
1301 | wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); | |
1302 | eapol_sm_notify_portValid(wpa_s->eapol, TRUE); | |
1303 | eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); | |
6fc6879b | 1304 | } |
1ff73338 JM |
1305 | |
1306 | if (wpa_s->pending_eapol_rx) { | |
1307 | struct os_time now, age; | |
1308 | os_get_time(&now); | |
1309 | os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age); | |
1310 | if (age.sec == 0 && age.usec < 100000 && | |
1311 | os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) == | |
1312 | 0) { | |
f049052b BG |
1313 | wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL " |
1314 | "frame that was received just before " | |
1315 | "association notification"); | |
1ff73338 JM |
1316 | wpa_supplicant_rx_eapol( |
1317 | wpa_s, wpa_s->pending_eapol_rx_src, | |
1318 | wpabuf_head(wpa_s->pending_eapol_rx), | |
1319 | wpabuf_len(wpa_s->pending_eapol_rx)); | |
1320 | } | |
1321 | wpabuf_free(wpa_s->pending_eapol_rx); | |
1322 | wpa_s->pending_eapol_rx = NULL; | |
1323 | } | |
60b94c98 JM |
1324 | |
1325 | #ifdef CONFIG_BGSCAN | |
1326 | if (wpa_s->current_ssid != wpa_s->bgscan_ssid) { | |
1327 | bgscan_deinit(wpa_s); | |
1328 | if (wpa_s->current_ssid && wpa_s->current_ssid->bgscan) { | |
1329 | if (bgscan_init(wpa_s, wpa_s->current_ssid)) { | |
f049052b BG |
1330 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to " |
1331 | "initialize bgscan"); | |
60b94c98 JM |
1332 | /* |
1333 | * Live without bgscan; it is only used as a | |
1334 | * roaming optimization, so the initial | |
1335 | * connection is not affected. | |
1336 | */ | |
1337 | } else | |
1338 | wpa_s->bgscan_ssid = wpa_s->current_ssid; | |
1339 | } else | |
1340 | wpa_s->bgscan_ssid = NULL; | |
1341 | } | |
1342 | #endif /* CONFIG_BGSCAN */ | |
0194fedb JB |
1343 | |
1344 | if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || | |
1345 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) && | |
1346 | wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 && | |
1347 | capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) { | |
1348 | /* Set static WEP keys again */ | |
1349 | wpa_set_wep_keys(wpa_s, wpa_s->current_ssid); | |
1350 | } | |
50b05780 JM |
1351 | |
1352 | #ifdef CONFIG_IBSS_RSN | |
1353 | if (wpa_s->current_ssid && | |
1354 | wpa_s->current_ssid->mode == WPAS_MODE_IBSS && | |
1355 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && | |
1356 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) | |
1357 | ibss_rsn_connected(wpa_s->ibss_rsn); | |
1358 | #endif /* CONFIG_IBSS_RSN */ | |
6fc6879b JM |
1359 | } |
1360 | ||
1361 | ||
0544b242 JM |
1362 | static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s, |
1363 | u16 reason_code) | |
6fc6879b JM |
1364 | { |
1365 | const u8 *bssid; | |
6d6f4bb8 JM |
1366 | int authenticating; |
1367 | u8 prev_pending_bssid[ETH_ALEN]; | |
1368 | ||
1369 | authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING; | |
1370 | os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN); | |
6fc6879b JM |
1371 | |
1372 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
1373 | /* | |
1374 | * At least Host AP driver and a Prism3 card seemed to be | |
1375 | * generating streams of disconnected events when configuring | |
1376 | * IBSS for WPA-None. Ignore them for now. | |
1377 | */ | |
f049052b BG |
1378 | wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in " |
1379 | "IBSS/WPA-None mode"); | |
6fc6879b JM |
1380 | return; |
1381 | } | |
1382 | ||
1383 | if (wpa_s->wpa_state == WPA_4WAY_HANDSHAKE && | |
56586197 | 1384 | wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { |
6fc6879b JM |
1385 | wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - " |
1386 | "pre-shared key may be incorrect"); | |
1387 | } | |
0d0a8ca1 AC |
1388 | if (!wpa_s->auto_reconnect_disabled || |
1389 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) { | |
f049052b BG |
1390 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Auto connect enabled: try to " |
1391 | "reconnect (wps=%d)", | |
1392 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPS); | |
ea184114 | 1393 | if (wpa_s->wpa_state >= WPA_ASSOCIATING) |
0d0a8ca1 AC |
1394 | wpa_supplicant_req_scan(wpa_s, 0, 100000); |
1395 | } else { | |
f049052b BG |
1396 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Auto connect disabled: do not " |
1397 | "try to re-connect"); | |
0d0a8ca1 AC |
1398 | wpa_s->reassociate = 0; |
1399 | wpa_s->disconnected = 1; | |
1400 | } | |
6fc6879b | 1401 | bssid = wpa_s->bssid; |
a8e16edc | 1402 | if (is_zero_ether_addr(bssid)) |
6fc6879b | 1403 | bssid = wpa_s->pending_bssid; |
0fb337c1 | 1404 | wpas_connection_failed(wpa_s, bssid); |
6fc6879b | 1405 | wpa_sm_notify_disassoc(wpa_s->wpa); |
0544b242 JM |
1406 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR |
1407 | " reason=%d", | |
1408 | MAC2STR(bssid), reason_code); | |
6fc6879b | 1409 | if (wpa_supplicant_dynamic_keys(wpa_s)) { |
f049052b | 1410 | wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys"); |
6fc6879b JM |
1411 | wpa_s->keys_cleared = 0; |
1412 | wpa_clear_keys(wpa_s, wpa_s->bssid); | |
1413 | } | |
1414 | wpa_supplicant_mark_disassoc(wpa_s); | |
60b94c98 | 1415 | bgscan_deinit(wpa_s); |
3b038d79 | 1416 | wpa_s->bgscan_ssid = NULL; |
e29853bb BG |
1417 | |
1418 | if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) | |
1419 | sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid); | |
6fc6879b JM |
1420 | } |
1421 | ||
1422 | ||
46690a3b JM |
1423 | #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT |
1424 | static void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, | |
1425 | void *sock_ctx) | |
1426 | { | |
1427 | struct wpa_supplicant *wpa_s = eloop_ctx; | |
1428 | ||
1429 | if (!wpa_s->pending_mic_error_report) | |
1430 | return; | |
1431 | ||
f049052b | 1432 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report"); |
46690a3b JM |
1433 | wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise); |
1434 | wpa_s->pending_mic_error_report = 0; | |
1435 | } | |
1436 | #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ | |
1437 | ||
1438 | ||
6fc6879b JM |
1439 | static void |
1440 | wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s, | |
1441 | union wpa_event_data *data) | |
1442 | { | |
1443 | int pairwise; | |
1444 | struct os_time t; | |
1445 | ||
1446 | wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected"); | |
1447 | pairwise = (data && data->michael_mic_failure.unicast); | |
6fc6879b | 1448 | os_get_time(&t); |
46690a3b JM |
1449 | if ((wpa_s->last_michael_mic_error && |
1450 | t.sec - wpa_s->last_michael_mic_error <= 60) || | |
1451 | wpa_s->pending_mic_error_report) { | |
1452 | if (wpa_s->pending_mic_error_report) { | |
1453 | /* | |
1454 | * Send the pending MIC error report immediately since | |
1455 | * we are going to start countermeasures and AP better | |
1456 | * do the same. | |
1457 | */ | |
1458 | wpa_sm_key_request(wpa_s->wpa, 1, | |
1459 | wpa_s->pending_mic_error_pairwise); | |
1460 | } | |
1461 | ||
1462 | /* Send the new MIC error report immediately since we are going | |
1463 | * to start countermeasures and AP better do the same. | |
1464 | */ | |
1465 | wpa_sm_key_request(wpa_s->wpa, 1, pairwise); | |
1466 | ||
6fc6879b JM |
1467 | /* initialize countermeasures */ |
1468 | wpa_s->countermeasures = 1; | |
1469 | wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started"); | |
1470 | ||
1471 | /* | |
1472 | * Need to wait for completion of request frame. We do not get | |
1473 | * any callback for the message completion, so just wait a | |
1474 | * short while and hope for the best. */ | |
1475 | os_sleep(0, 10000); | |
1476 | ||
1477 | wpa_drv_set_countermeasures(wpa_s, 1); | |
1478 | wpa_supplicant_deauthenticate(wpa_s, | |
1479 | WLAN_REASON_MICHAEL_MIC_FAILURE); | |
1480 | eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, | |
1481 | wpa_s, NULL); | |
1482 | eloop_register_timeout(60, 0, | |
1483 | wpa_supplicant_stop_countermeasures, | |
1484 | wpa_s, NULL); | |
1485 | /* TODO: mark the AP rejected for 60 second. STA is | |
1486 | * allowed to associate with another AP.. */ | |
46690a3b JM |
1487 | } else { |
1488 | #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT | |
1489 | if (wpa_s->mic_errors_seen) { | |
1490 | /* | |
1491 | * Reduce the effectiveness of Michael MIC error | |
1492 | * reports as a means for attacking against TKIP if | |
1493 | * more than one MIC failure is noticed with the same | |
1494 | * PTK. We delay the transmission of the reports by a | |
1495 | * random time between 0 and 60 seconds in order to | |
1496 | * force the attacker wait 60 seconds before getting | |
1497 | * the information on whether a frame resulted in a MIC | |
1498 | * failure. | |
1499 | */ | |
1500 | u8 rval[4]; | |
1501 | int sec; | |
1502 | ||
1503 | if (os_get_random(rval, sizeof(rval)) < 0) | |
1504 | sec = os_random() % 60; | |
1505 | else | |
1506 | sec = WPA_GET_BE32(rval) % 60; | |
f049052b BG |
1507 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error " |
1508 | "report %d seconds", sec); | |
46690a3b JM |
1509 | wpa_s->pending_mic_error_report = 1; |
1510 | wpa_s->pending_mic_error_pairwise = pairwise; | |
1511 | eloop_cancel_timeout( | |
1512 | wpa_supplicant_delayed_mic_error_report, | |
1513 | wpa_s, NULL); | |
1514 | eloop_register_timeout( | |
1515 | sec, os_random() % 1000000, | |
1516 | wpa_supplicant_delayed_mic_error_report, | |
1517 | wpa_s, NULL); | |
1518 | } else { | |
1519 | wpa_sm_key_request(wpa_s->wpa, 1, pairwise); | |
1520 | } | |
1521 | #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */ | |
1522 | wpa_sm_key_request(wpa_s->wpa, 1, pairwise); | |
1523 | #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ | |
6fc6879b JM |
1524 | } |
1525 | wpa_s->last_michael_mic_error = t.sec; | |
46690a3b | 1526 | wpa_s->mic_errors_seen++; |
6fc6879b JM |
1527 | } |
1528 | ||
1529 | ||
a83d9c96 SL |
1530 | #ifdef CONFIG_TERMINATE_ONLASTIF |
1531 | static int any_interfaces(struct wpa_supplicant *head) | |
1532 | { | |
1533 | struct wpa_supplicant *wpa_s; | |
1534 | ||
1535 | for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next) | |
1536 | if (!wpa_s->interface_removed) | |
1537 | return 1; | |
1538 | return 0; | |
1539 | } | |
1540 | #endif /* CONFIG_TERMINATE_ONLASTIF */ | |
1541 | ||
1542 | ||
6fc6879b JM |
1543 | static void |
1544 | wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s, | |
1545 | union wpa_event_data *data) | |
1546 | { | |
1547 | if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0) | |
1548 | return; | |
1549 | ||
1550 | switch (data->interface_status.ievent) { | |
1551 | case EVENT_INTERFACE_ADDED: | |
1552 | if (!wpa_s->interface_removed) | |
1553 | break; | |
1554 | wpa_s->interface_removed = 0; | |
f049052b | 1555 | wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added"); |
6fc6879b | 1556 | if (wpa_supplicant_driver_init(wpa_s) < 0) { |
f049052b BG |
1557 | wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the " |
1558 | "driver after interface was added"); | |
6fc6879b JM |
1559 | } |
1560 | break; | |
1561 | case EVENT_INTERFACE_REMOVED: | |
f049052b | 1562 | wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed"); |
6fc6879b JM |
1563 | wpa_s->interface_removed = 1; |
1564 | wpa_supplicant_mark_disassoc(wpa_s); | |
1565 | l2_packet_deinit(wpa_s->l2); | |
1566 | wpa_s->l2 = NULL; | |
a83d9c96 SL |
1567 | #ifdef CONFIG_TERMINATE_ONLASTIF |
1568 | /* check if last interface */ | |
1569 | if (!any_interfaces(wpa_s->global->ifaces)) | |
1570 | eloop_terminate(); | |
1571 | #endif /* CONFIG_TERMINATE_ONLASTIF */ | |
6fc6879b JM |
1572 | break; |
1573 | } | |
1574 | } | |
1575 | ||
1576 | ||
1577 | #ifdef CONFIG_PEERKEY | |
1578 | static void | |
1579 | wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s, | |
1580 | union wpa_event_data *data) | |
1581 | { | |
1582 | if (data == NULL) | |
1583 | return; | |
1584 | wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer); | |
1585 | } | |
1586 | #endif /* CONFIG_PEERKEY */ | |
1587 | ||
1588 | ||
1589 | #ifdef CONFIG_IEEE80211R | |
1590 | static void | |
1591 | wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s, | |
1592 | union wpa_event_data *data) | |
1593 | { | |
1594 | if (data == NULL) | |
1595 | return; | |
1596 | ||
1597 | if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies, | |
1598 | data->ft_ies.ies_len, | |
1599 | data->ft_ies.ft_action, | |
babfbf15 JM |
1600 | data->ft_ies.target_ap, |
1601 | data->ft_ies.ric_ies, | |
1602 | data->ft_ies.ric_ies_len) < 0) { | |
6fc6879b JM |
1603 | /* TODO: prevent MLME/driver from trying to associate? */ |
1604 | } | |
1605 | } | |
1606 | #endif /* CONFIG_IEEE80211R */ | |
1607 | ||
1608 | ||
11ef8d35 JM |
1609 | #ifdef CONFIG_IBSS_RSN |
1610 | static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s, | |
1611 | union wpa_event_data *data) | |
1612 | { | |
df4bc509 | 1613 | struct wpa_ssid *ssid; |
11ef8d35 JM |
1614 | if (data == NULL) |
1615 | return; | |
df4bc509 JM |
1616 | ssid = wpa_s->current_ssid; |
1617 | if (ssid == NULL) | |
1618 | return; | |
1619 | if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt)) | |
1620 | return; | |
1621 | ||
11ef8d35 JM |
1622 | ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer); |
1623 | } | |
1624 | #endif /* CONFIG_IBSS_RSN */ | |
1625 | ||
1626 | ||
036f7c4a JM |
1627 | #ifdef CONFIG_IEEE80211R |
1628 | static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data, | |
1629 | size_t len) | |
1630 | { | |
1631 | const u8 *sta_addr, *target_ap_addr; | |
1632 | u16 status; | |
1633 | ||
1634 | wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len); | |
1635 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) | |
1636 | return; /* only SME case supported for now */ | |
1637 | if (len < 1 + 2 * ETH_ALEN + 2) | |
1638 | return; | |
1639 | if (data[0] != 2) | |
1640 | return; /* Only FT Action Response is supported for now */ | |
1641 | sta_addr = data + 1; | |
1642 | target_ap_addr = data + 1 + ETH_ALEN; | |
1643 | status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN); | |
f049052b BG |
1644 | wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA " |
1645 | MACSTR " TargetAP " MACSTR " status %u", | |
1646 | MAC2STR(sta_addr), MAC2STR(target_ap_addr), status); | |
036f7c4a JM |
1647 | |
1648 | if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) { | |
f049052b BG |
1649 | wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR |
1650 | " in FT Action Response", MAC2STR(sta_addr)); | |
036f7c4a JM |
1651 | return; |
1652 | } | |
1653 | ||
1654 | if (status) { | |
f049052b BG |
1655 | wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates " |
1656 | "failure (status code %d)", status); | |
036f7c4a JM |
1657 | /* TODO: report error to FT code(?) */ |
1658 | return; | |
1659 | } | |
1660 | ||
1661 | if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2, | |
1662 | len - (1 + 2 * ETH_ALEN + 2), 1, | |
1663 | target_ap_addr, NULL, 0) < 0) | |
1664 | return; | |
1665 | ||
fe191985 JM |
1666 | #ifdef CONFIG_SME |
1667 | { | |
1668 | struct wpa_bss *bss; | |
1669 | bss = wpa_bss_get_bssid(wpa_s, target_ap_addr); | |
1670 | if (bss) | |
1671 | wpa_s->sme.freq = bss->freq; | |
62c72d72 | 1672 | wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT; |
fe191985 JM |
1673 | sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr, |
1674 | WLAN_AUTH_FT); | |
1675 | } | |
1676 | #endif /* CONFIG_SME */ | |
036f7c4a JM |
1677 | } |
1678 | #endif /* CONFIG_IEEE80211R */ | |
1679 | ||
1680 | ||
7d878ca7 JM |
1681 | static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s, |
1682 | struct unprot_deauth *e) | |
1683 | { | |
1684 | #ifdef CONFIG_IEEE80211W | |
1685 | wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame " | |
1686 | "dropped: " MACSTR " -> " MACSTR | |
1687 | " (reason code %u)", | |
1688 | MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); | |
1689 | sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); | |
1690 | #endif /* CONFIG_IEEE80211W */ | |
1691 | } | |
1692 | ||
1693 | ||
1694 | static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s, | |
1695 | struct unprot_disassoc *e) | |
1696 | { | |
1697 | #ifdef CONFIG_IEEE80211W | |
1698 | wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame " | |
1699 | "dropped: " MACSTR " -> " MACSTR | |
1700 | " (reason code %u)", | |
1701 | MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); | |
1702 | sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); | |
1703 | #endif /* CONFIG_IEEE80211W */ | |
1704 | } | |
1705 | ||
1706 | ||
9646a8ab | 1707 | void wpa_supplicant_event(void *ctx, enum wpa_event_type event, |
6fc6879b JM |
1708 | union wpa_event_data *data) |
1709 | { | |
1710 | struct wpa_supplicant *wpa_s = ctx; | |
0544b242 | 1711 | u16 reason_code = 0; |
6fc6879b | 1712 | |
8401a6b0 JM |
1713 | if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED && |
1714 | event != EVENT_INTERFACE_ENABLED && | |
1715 | event != EVENT_INTERFACE_STATUS) { | |
f049052b BG |
1716 | wpa_dbg(wpa_s, MSG_DEBUG, "Ignore event %d while interface is " |
1717 | "disabled", event); | |
8401a6b0 JM |
1718 | return; |
1719 | } | |
1720 | ||
f049052b BG |
1721 | wpa_dbg(wpa_s, MSG_DEBUG, "Event %d received on interface %s", |
1722 | event, wpa_s->ifname); | |
9b7124b2 | 1723 | |
6fc6879b | 1724 | switch (event) { |
c2a04078 JM |
1725 | case EVENT_AUTH: |
1726 | sme_event_auth(wpa_s, data); | |
1727 | break; | |
6fc6879b JM |
1728 | case EVENT_ASSOC: |
1729 | wpa_supplicant_event_assoc(wpa_s, data); | |
1730 | break; | |
1731 | case EVENT_DISASSOC: | |
f049052b | 1732 | wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification"); |
2e75a2b3 | 1733 | if (data) { |
f049052b BG |
1734 | wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u", |
1735 | data->disassoc_info.reason_code); | |
2e75a2b3 | 1736 | if (data->disassoc_info.addr) |
f049052b BG |
1737 | wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR, |
1738 | MAC2STR(data->disassoc_info.addr)); | |
2e75a2b3 | 1739 | } |
1d041bec | 1740 | #ifdef CONFIG_AP |
7f542069 | 1741 | if (wpa_s->ap_iface && data && data->disassoc_info.addr) { |
1d041bec JM |
1742 | hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], |
1743 | data->disassoc_info.addr); | |
1744 | break; | |
1745 | } | |
1746 | #endif /* CONFIG_AP */ | |
9fdd0fad JM |
1747 | if (data) { |
1748 | reason_code = data->disassoc_info.reason_code; | |
1749 | wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)", | |
1750 | data->disassoc_info.ie, | |
1751 | data->disassoc_info.ie_len); | |
1752 | #ifdef CONFIG_P2P | |
1753 | wpas_p2p_disassoc_notif( | |
1754 | wpa_s, data->disassoc_info.addr, reason_code, | |
1755 | data->disassoc_info.ie, | |
1756 | data->disassoc_info.ie_len); | |
1757 | #endif /* CONFIG_P2P */ | |
1758 | } | |
0e379654 JM |
1759 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) |
1760 | sme_event_disassoc(wpa_s, data); | |
a84ed99e JM |
1761 | /* fall through */ |
1762 | case EVENT_DEAUTH: | |
0544b242 | 1763 | if (event == EVENT_DEAUTH) { |
f049052b BG |
1764 | wpa_dbg(wpa_s, MSG_DEBUG, |
1765 | "Deauthentication notification"); | |
2e75a2b3 | 1766 | if (data) { |
0544b242 | 1767 | reason_code = data->deauth_info.reason_code; |
f049052b BG |
1768 | wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u", |
1769 | data->deauth_info.reason_code); | |
2e75a2b3 | 1770 | if (data->deauth_info.addr) { |
f049052b BG |
1771 | wpa_dbg(wpa_s, MSG_DEBUG, " * address " |
1772 | MACSTR, | |
1773 | MAC2STR(data->deauth_info. | |
1774 | addr)); | |
2e75a2b3 | 1775 | } |
9fdd0fad JM |
1776 | wpa_hexdump(MSG_DEBUG, |
1777 | "Deauthentication frame IE(s)", | |
1778 | data->deauth_info.ie, | |
1779 | data->deauth_info.ie_len); | |
1780 | #ifdef CONFIG_P2P | |
1781 | wpas_p2p_deauth_notif( | |
1782 | wpa_s, data->deauth_info.addr, | |
1783 | reason_code, | |
1784 | data->deauth_info.ie, | |
1785 | data->deauth_info.ie_len); | |
1786 | #endif /* CONFIG_P2P */ | |
2e75a2b3 | 1787 | } |
0544b242 | 1788 | } |
1d041bec | 1789 | #ifdef CONFIG_AP |
7f542069 | 1790 | if (wpa_s->ap_iface && data && data->deauth_info.addr) { |
1d041bec JM |
1791 | hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], |
1792 | data->deauth_info.addr); | |
1793 | break; | |
1794 | } | |
1795 | #endif /* CONFIG_AP */ | |
0544b242 | 1796 | wpa_supplicant_event_disassoc(wpa_s, reason_code); |
6fc6879b JM |
1797 | break; |
1798 | case EVENT_MICHAEL_MIC_FAILURE: | |
1799 | wpa_supplicant_event_michael_mic_failure(wpa_s, data); | |
1800 | break; | |
1801 | #ifndef CONFIG_NO_SCAN_PROCESSING | |
1802 | case EVENT_SCAN_RESULTS: | |
8d923a4a | 1803 | wpa_supplicant_event_scan_results(wpa_s, data); |
6fc6879b JM |
1804 | break; |
1805 | #endif /* CONFIG_NO_SCAN_PROCESSING */ | |
1806 | case EVENT_ASSOCINFO: | |
1807 | wpa_supplicant_event_associnfo(wpa_s, data); | |
1808 | break; | |
1809 | case EVENT_INTERFACE_STATUS: | |
1810 | wpa_supplicant_event_interface_status(wpa_s, data); | |
1811 | break; | |
1812 | case EVENT_PMKID_CANDIDATE: | |
1813 | wpa_supplicant_event_pmkid_candidate(wpa_s, data); | |
1814 | break; | |
1815 | #ifdef CONFIG_PEERKEY | |
1816 | case EVENT_STKSTART: | |
1817 | wpa_supplicant_event_stkstart(wpa_s, data); | |
1818 | break; | |
1819 | #endif /* CONFIG_PEERKEY */ | |
1820 | #ifdef CONFIG_IEEE80211R | |
1821 | case EVENT_FT_RESPONSE: | |
1822 | wpa_supplicant_event_ft_response(wpa_s, data); | |
1823 | break; | |
1824 | #endif /* CONFIG_IEEE80211R */ | |
11ef8d35 JM |
1825 | #ifdef CONFIG_IBSS_RSN |
1826 | case EVENT_IBSS_RSN_START: | |
1827 | wpa_supplicant_event_ibss_rsn_start(wpa_s, data); | |
1828 | break; | |
1829 | #endif /* CONFIG_IBSS_RSN */ | |
efa46078 | 1830 | case EVENT_ASSOC_REJECT: |
c05d6d18 JM |
1831 | if (data->assoc_reject.bssid) |
1832 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT | |
1833 | "bssid=" MACSTR " status_code=%u", | |
1834 | MAC2STR(data->assoc_reject.bssid), | |
1835 | data->assoc_reject.status_code); | |
1836 | else | |
1837 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT | |
1838 | "status_code=%u", | |
1839 | data->assoc_reject.status_code); | |
ea78c315 JM |
1840 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) |
1841 | sme_event_assoc_reject(wpa_s, data); | |
efa46078 | 1842 | break; |
da1fb17c | 1843 | case EVENT_AUTH_TIMED_OUT: |
ea78c315 JM |
1844 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) |
1845 | sme_event_auth_timed_out(wpa_s, data); | |
da1fb17c JM |
1846 | break; |
1847 | case EVENT_ASSOC_TIMED_OUT: | |
ea78c315 JM |
1848 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) |
1849 | sme_event_assoc_timed_out(wpa_s, data); | |
da1fb17c | 1850 | break; |
f8b1f695 JM |
1851 | #ifdef CONFIG_AP |
1852 | case EVENT_TX_STATUS: | |
f049052b BG |
1853 | wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR |
1854 | " type=%d stype=%d", | |
1855 | MAC2STR(data->tx_status.dst), | |
1856 | data->tx_status.type, data->tx_status.stype); | |
9bae1be0 JM |
1857 | if (wpa_s->ap_iface == NULL) { |
1858 | #ifdef CONFIG_P2P | |
1859 | if (data->tx_status.type == WLAN_FC_TYPE_MGMT && | |
1860 | data->tx_status.stype == WLAN_FC_STYPE_ACTION) | |
1861 | wpas_send_action_tx_status( | |
1862 | wpa_s, data->tx_status.dst, | |
1863 | data->tx_status.data, | |
1864 | data->tx_status.data_len, | |
93b7ddd0 JM |
1865 | data->tx_status.ack ? |
1866 | P2P_SEND_ACTION_SUCCESS : | |
1867 | P2P_SEND_ACTION_NO_ACK); | |
9bae1be0 JM |
1868 | #endif /* CONFIG_P2P */ |
1869 | break; | |
1870 | } | |
1871 | #ifdef CONFIG_P2P | |
f049052b BG |
1872 | wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst=" |
1873 | MACSTR, MAC2STR(wpa_s->parent->pending_action_dst)); | |
9bae1be0 JM |
1874 | /* |
1875 | * Catch TX status events for Action frames we sent via group | |
1876 | * interface in GO mode. | |
1877 | */ | |
1878 | if (data->tx_status.type == WLAN_FC_TYPE_MGMT && | |
1879 | data->tx_status.stype == WLAN_FC_STYPE_ACTION && | |
1880 | os_memcmp(wpa_s->parent->pending_action_dst, | |
1881 | data->tx_status.dst, ETH_ALEN) == 0) { | |
1882 | wpas_send_action_tx_status( | |
1883 | wpa_s->parent, data->tx_status.dst, | |
1884 | data->tx_status.data, | |
1885 | data->tx_status.data_len, | |
1d39378a AL |
1886 | data->tx_status.ack ? |
1887 | P2P_SEND_ACTION_SUCCESS : | |
1888 | P2P_SEND_ACTION_NO_ACK); | |
f8b1f695 | 1889 | break; |
9bae1be0 JM |
1890 | } |
1891 | #endif /* CONFIG_P2P */ | |
f8b1f695 JM |
1892 | switch (data->tx_status.type) { |
1893 | case WLAN_FC_TYPE_MGMT: | |
1894 | ap_mgmt_tx_cb(wpa_s, data->tx_status.data, | |
1895 | data->tx_status.data_len, | |
1896 | data->tx_status.stype, | |
1897 | data->tx_status.ack); | |
1898 | break; | |
1899 | case WLAN_FC_TYPE_DATA: | |
1900 | ap_tx_status(wpa_s, data->tx_status.dst, | |
1901 | data->tx_status.data, | |
1902 | data->tx_status.data_len, | |
1903 | data->tx_status.ack); | |
1904 | break; | |
1905 | } | |
1906 | break; | |
1907 | case EVENT_RX_FROM_UNKNOWN: | |
1908 | if (wpa_s->ap_iface == NULL) | |
1909 | break; | |
fdbe50ed | 1910 | ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.frame, |
f8b1f695 JM |
1911 | data->rx_from_unknown.len); |
1912 | break; | |
1913 | case EVENT_RX_MGMT: | |
9bae1be0 JM |
1914 | if (wpa_s->ap_iface == NULL) { |
1915 | #ifdef CONFIG_P2P | |
1916 | u16 fc, stype; | |
1917 | const struct ieee80211_mgmt *mgmt; | |
1918 | mgmt = (const struct ieee80211_mgmt *) | |
1919 | data->rx_mgmt.frame; | |
1920 | fc = le_to_host16(mgmt->frame_control); | |
1921 | stype = WLAN_FC_GET_STYPE(fc); | |
1922 | if (stype == WLAN_FC_STYPE_PROBE_REQ && | |
1923 | data->rx_mgmt.frame_len > 24) { | |
1924 | const u8 *src = mgmt->sa; | |
1925 | const u8 *ie = mgmt->u.probe_req.variable; | |
1926 | size_t ie_len = data->rx_mgmt.frame_len - | |
1927 | (mgmt->u.probe_req.variable - | |
1928 | data->rx_mgmt.frame); | |
1929 | wpas_p2p_probe_req_rx(wpa_s, src, ie, ie_len); | |
1930 | break; | |
1931 | } | |
1932 | #endif /* CONFIG_P2P */ | |
f049052b BG |
1933 | wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received " |
1934 | "management frame in non-AP mode"); | |
f8b1f695 | 1935 | break; |
9bae1be0 | 1936 | } |
2a8b7416 | 1937 | ap_mgmt_rx(wpa_s, &data->rx_mgmt); |
f8b1f695 JM |
1938 | break; |
1939 | #endif /* CONFIG_AP */ | |
036f7c4a | 1940 | case EVENT_RX_ACTION: |
f049052b BG |
1941 | wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR |
1942 | " Category=%u DataLen=%d freq=%d MHz", | |
1943 | MAC2STR(data->rx_action.sa), | |
1944 | data->rx_action.category, (int) data->rx_action.len, | |
1945 | data->rx_action.freq); | |
036f7c4a JM |
1946 | #ifdef CONFIG_IEEE80211R |
1947 | if (data->rx_action.category == WLAN_ACTION_FT) { | |
1948 | ft_rx_action(wpa_s, data->rx_action.data, | |
1949 | data->rx_action.len); | |
1950 | break; | |
1951 | } | |
1952 | #endif /* CONFIG_IEEE80211R */ | |
7d878ca7 JM |
1953 | #ifdef CONFIG_IEEE80211W |
1954 | #ifdef CONFIG_SME | |
1955 | if (data->rx_action.category == WLAN_ACTION_SA_QUERY) { | |
1956 | sme_sa_query_rx(wpa_s, data->rx_action.sa, | |
1957 | data->rx_action.data, | |
1958 | data->rx_action.len); | |
1959 | break; | |
1960 | } | |
1961 | #endif /* CONFIG_SME */ | |
1962 | #endif /* CONFIG_IEEE80211W */ | |
9bae1be0 JM |
1963 | #ifdef CONFIG_P2P |
1964 | wpas_p2p_rx_action(wpa_s, data->rx_action.da, | |
1965 | data->rx_action.sa, | |
1966 | data->rx_action.bssid, | |
1967 | data->rx_action.category, | |
1968 | data->rx_action.data, | |
1969 | data->rx_action.len, data->rx_action.freq); | |
e67b55fb JM |
1970 | #endif /* CONFIG_P2P */ |
1971 | break; | |
1972 | case EVENT_RX_PROBE_REQ: | |
1973 | #ifdef CONFIG_AP | |
1974 | if (wpa_s->ap_iface) { | |
1975 | hostapd_probe_req_rx(wpa_s->ap_iface->bss[0], | |
1976 | data->rx_probe_req.sa, | |
1977 | data->rx_probe_req.ie, | |
1978 | data->rx_probe_req.ie_len); | |
1979 | break; | |
1980 | } | |
1981 | #endif /* CONFIG_AP */ | |
1982 | #ifdef CONFIG_P2P | |
1983 | wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa, | |
1984 | data->rx_probe_req.ie, | |
1985 | data->rx_probe_req.ie_len); | |
9bae1be0 | 1986 | #endif /* CONFIG_P2P */ |
036f7c4a | 1987 | break; |
9bae1be0 JM |
1988 | #ifdef CONFIG_P2P |
1989 | case EVENT_REMAIN_ON_CHANNEL: | |
1990 | wpas_p2p_remain_on_channel_cb( | |
1991 | wpa_s, data->remain_on_channel.freq, | |
1992 | data->remain_on_channel.duration); | |
1993 | break; | |
1994 | case EVENT_CANCEL_REMAIN_ON_CHANNEL: | |
1995 | wpas_p2p_cancel_remain_on_channel_cb( | |
1996 | wpa_s, data->remain_on_channel.freq); | |
1997 | break; | |
3ac17eba JM |
1998 | case EVENT_P2P_DEV_FOUND: |
1999 | wpas_dev_found(wpa_s, data->p2p_dev_found.addr, | |
2000 | data->p2p_dev_found.dev_addr, | |
2001 | data->p2p_dev_found.pri_dev_type, | |
2002 | data->p2p_dev_found.dev_name, | |
2003 | data->p2p_dev_found.config_methods, | |
2004 | data->p2p_dev_found.dev_capab, | |
2005 | data->p2p_dev_found.group_capab); | |
2006 | break; | |
2007 | case EVENT_P2P_GO_NEG_REQ_RX: | |
2008 | wpas_go_neg_req_rx(wpa_s, data->p2p_go_neg_req_rx.src, | |
2009 | data->p2p_go_neg_req_rx.dev_passwd_id); | |
2010 | break; | |
2011 | case EVENT_P2P_GO_NEG_COMPLETED: | |
2012 | wpas_go_neg_completed(wpa_s, data->p2p_go_neg_completed.res); | |
2013 | break; | |
2014 | case EVENT_P2P_PROV_DISC_REQUEST: | |
2015 | wpas_prov_disc_req(wpa_s, data->p2p_prov_disc_req.peer, | |
2016 | data->p2p_prov_disc_req.config_methods, | |
2017 | data->p2p_prov_disc_req.dev_addr, | |
2018 | data->p2p_prov_disc_req.pri_dev_type, | |
2019 | data->p2p_prov_disc_req.dev_name, | |
2020 | data->p2p_prov_disc_req.supp_config_methods, | |
2021 | data->p2p_prov_disc_req.dev_capab, | |
2022 | data->p2p_prov_disc_req.group_capab); | |
2023 | break; | |
2024 | case EVENT_P2P_PROV_DISC_RESPONSE: | |
2025 | wpas_prov_disc_resp(wpa_s, data->p2p_prov_disc_resp.peer, | |
2026 | data->p2p_prov_disc_resp.config_methods); | |
2027 | break; | |
2028 | case EVENT_P2P_SD_REQUEST: | |
2029 | wpas_sd_request(wpa_s, data->p2p_sd_req.freq, | |
2030 | data->p2p_sd_req.sa, | |
2031 | data->p2p_sd_req.dialog_token, | |
2032 | data->p2p_sd_req.update_indic, | |
2033 | data->p2p_sd_req.tlvs, | |
2034 | data->p2p_sd_req.tlvs_len); | |
2035 | break; | |
2036 | case EVENT_P2P_SD_RESPONSE: | |
2037 | wpas_sd_response(wpa_s, data->p2p_sd_resp.sa, | |
2038 | data->p2p_sd_resp.update_indic, | |
2039 | data->p2p_sd_resp.tlvs, | |
2040 | data->p2p_sd_resp.tlvs_len); | |
2041 | break; | |
9bae1be0 | 2042 | #endif /* CONFIG_P2P */ |
245519e0 JM |
2043 | #ifdef CONFIG_CLIENT_MLME |
2044 | case EVENT_MLME_RX: { | |
2045 | struct ieee80211_rx_status rx_status; | |
2046 | os_memset(&rx_status, 0, sizeof(rx_status)); | |
2047 | rx_status.freq = data->mlme_rx.freq; | |
2048 | rx_status.channel = data->mlme_rx.channel; | |
2049 | rx_status.ssi = data->mlme_rx.ssi; | |
2050 | ieee80211_sta_rx(wpa_s, data->mlme_rx.buf, data->mlme_rx.len, | |
2051 | &rx_status); | |
2052 | break; | |
2053 | } | |
2054 | #endif /* CONFIG_CLIENT_MLME */ | |
a8e0505b JM |
2055 | case EVENT_EAPOL_RX: |
2056 | wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src, | |
2057 | data->eapol_rx.data, | |
2058 | data->eapol_rx.data_len); | |
2059 | break; | |
e2f74005 JM |
2060 | case EVENT_SIGNAL_CHANGE: |
2061 | bgscan_notify_signal_change( | |
60a972a6 | 2062 | wpa_s, data->signal_change.above_threshold, |
174fa789 PS |
2063 | data->signal_change.current_signal, |
2064 | data->signal_change.current_noise, | |
2065 | data->signal_change.current_txrate); | |
e2f74005 | 2066 | break; |
8401a6b0 | 2067 | case EVENT_INTERFACE_ENABLED: |
f049052b | 2068 | wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled"); |
8401a6b0 | 2069 | if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { |
199716ad | 2070 | #ifdef CONFIG_AP |
9919f7a2 JB |
2071 | if (!wpa_s->ap_iface) { |
2072 | wpa_supplicant_set_state(wpa_s, | |
2073 | WPA_DISCONNECTED); | |
2074 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
2075 | } else | |
2076 | wpa_supplicant_set_state(wpa_s, | |
2077 | WPA_COMPLETED); | |
199716ad BG |
2078 | #else /* CONFIG_AP */ |
2079 | wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); | |
2080 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
2081 | #endif /* CONFIG_AP */ | |
8401a6b0 JM |
2082 | } |
2083 | break; | |
2084 | case EVENT_INTERFACE_DISABLED: | |
f049052b | 2085 | wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled"); |
8401a6b0 JM |
2086 | wpa_supplicant_mark_disassoc(wpa_s); |
2087 | wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); | |
2088 | break; | |
b5c9da8d | 2089 | case EVENT_CHANNEL_LIST_CHANGED: |
35c5d610 JM |
2090 | if (wpa_s->drv_priv == NULL) |
2091 | break; /* Ignore event during drv initialization */ | |
b5c9da8d JM |
2092 | #ifdef CONFIG_P2P |
2093 | wpas_p2p_update_channel_list(wpa_s); | |
c973f386 JM |
2094 | #endif /* CONFIG_P2P */ |
2095 | break; | |
2096 | case EVENT_INTERFACE_UNAVAILABLE: | |
2097 | #ifdef CONFIG_P2P | |
2098 | wpas_p2p_interface_unavailable(wpa_s); | |
7cfc4ac3 AGS |
2099 | #endif /* CONFIG_P2P */ |
2100 | break; | |
2101 | case EVENT_BEST_CHANNEL: | |
f049052b BG |
2102 | wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received " |
2103 | "(%d %d %d)", | |
2104 | data->best_chan.freq_24, data->best_chan.freq_5, | |
2105 | data->best_chan.freq_overall); | |
7cfc4ac3 AGS |
2106 | wpa_s->best_24_freq = data->best_chan.freq_24; |
2107 | wpa_s->best_5_freq = data->best_chan.freq_5; | |
2108 | wpa_s->best_overall_freq = data->best_chan.freq_overall; | |
2109 | #ifdef CONFIG_P2P | |
2110 | wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24, | |
2111 | data->best_chan.freq_5, | |
2112 | data->best_chan.freq_overall); | |
b5c9da8d JM |
2113 | #endif /* CONFIG_P2P */ |
2114 | break; | |
7d878ca7 JM |
2115 | case EVENT_UNPROT_DEAUTH: |
2116 | wpa_supplicant_event_unprot_deauth(wpa_s, | |
2117 | &data->unprot_deauth); | |
2118 | break; | |
2119 | case EVENT_UNPROT_DISASSOC: | |
2120 | wpa_supplicant_event_unprot_disassoc(wpa_s, | |
2121 | &data->unprot_disassoc); | |
2122 | break; | |
0d7e5a3a JB |
2123 | case EVENT_STATION_LOW_ACK: |
2124 | #ifdef CONFIG_AP | |
2125 | if (wpa_s->ap_iface && data) | |
2126 | hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0], | |
2127 | data->low_ack.addr); | |
2128 | #endif /* CONFIG_AP */ | |
2129 | break; | |
6fc6879b | 2130 | default: |
f049052b | 2131 | wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event); |
6fc6879b JM |
2132 | break; |
2133 | } | |
2134 | } |