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1 | /* | |
2 | * WPA Supplicant | |
3 | * Copyright (c) 2003-2014, 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 | * This file implements functions for registering and unregistering | |
9 | * %wpa_supplicant interfaces. In addition, this file contains number of | |
10 | * functions for managing network connections. | |
11 | */ | |
12 | ||
13 | #include "includes.h" | |
14 | ||
15 | #include "common.h" | |
16 | #include "crypto/random.h" | |
17 | #include "crypto/sha1.h" | |
18 | #include "eapol_supp/eapol_supp_sm.h" | |
19 | #include "eap_peer/eap.h" | |
20 | #include "eap_peer/eap_proxy.h" | |
21 | #include "eap_server/eap_methods.h" | |
22 | #include "rsn_supp/wpa.h" | |
23 | #include "eloop.h" | |
24 | #include "config.h" | |
25 | #include "utils/ext_password.h" | |
26 | #include "l2_packet/l2_packet.h" | |
27 | #include "wpa_supplicant_i.h" | |
28 | #include "driver_i.h" | |
29 | #include "ctrl_iface.h" | |
30 | #include "pcsc_funcs.h" | |
31 | #include "common/version.h" | |
32 | #include "rsn_supp/preauth.h" | |
33 | #include "rsn_supp/pmksa_cache.h" | |
34 | #include "common/wpa_ctrl.h" | |
35 | #include "common/ieee802_11_defs.h" | |
36 | #include "p2p/p2p.h" | |
37 | #include "blacklist.h" | |
38 | #include "wpas_glue.h" | |
39 | #include "wps_supplicant.h" | |
40 | #include "ibss_rsn.h" | |
41 | #include "sme.h" | |
42 | #include "gas_query.h" | |
43 | #include "ap.h" | |
44 | #include "p2p_supplicant.h" | |
45 | #include "wifi_display.h" | |
46 | #include "notify.h" | |
47 | #include "bgscan.h" | |
48 | #include "autoscan.h" | |
49 | #include "bss.h" | |
50 | #include "scan.h" | |
51 | #include "offchannel.h" | |
52 | #include "hs20_supplicant.h" | |
53 | #include "wnm_sta.h" | |
54 | #include "wpas_kay.h" | |
55 | ||
56 | const char *wpa_supplicant_version = | |
57 | "wpa_supplicant v" VERSION_STR "\n" | |
58 | "Copyright (c) 2003-2014, Jouni Malinen <j@w1.fi> and contributors"; | |
59 | ||
60 | const char *wpa_supplicant_license = | |
61 | "This software may be distributed under the terms of the BSD license.\n" | |
62 | "See README for more details.\n" | |
63 | #ifdef EAP_TLS_OPENSSL | |
64 | "\nThis product includes software developed by the OpenSSL Project\n" | |
65 | "for use in the OpenSSL Toolkit (http://www.openssl.org/)\n" | |
66 | #endif /* EAP_TLS_OPENSSL */ | |
67 | ; | |
68 | ||
69 | #ifndef CONFIG_NO_STDOUT_DEBUG | |
70 | /* Long text divided into parts in order to fit in C89 strings size limits. */ | |
71 | const char *wpa_supplicant_full_license1 = | |
72 | ""; | |
73 | const char *wpa_supplicant_full_license2 = | |
74 | "This software may be distributed under the terms of the BSD license.\n" | |
75 | "\n" | |
76 | "Redistribution and use in source and binary forms, with or without\n" | |
77 | "modification, are permitted provided that the following conditions are\n" | |
78 | "met:\n" | |
79 | "\n"; | |
80 | const char *wpa_supplicant_full_license3 = | |
81 | "1. Redistributions of source code must retain the above copyright\n" | |
82 | " notice, this list of conditions and the following disclaimer.\n" | |
83 | "\n" | |
84 | "2. Redistributions in binary form must reproduce the above copyright\n" | |
85 | " notice, this list of conditions and the following disclaimer in the\n" | |
86 | " documentation and/or other materials provided with the distribution.\n" | |
87 | "\n"; | |
88 | const char *wpa_supplicant_full_license4 = | |
89 | "3. Neither the name(s) of the above-listed copyright holder(s) nor the\n" | |
90 | " names of its contributors may be used to endorse or promote products\n" | |
91 | " derived from this software without specific prior written permission.\n" | |
92 | "\n" | |
93 | "THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n" | |
94 | "\"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n" | |
95 | "LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n" | |
96 | "A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n"; | |
97 | const char *wpa_supplicant_full_license5 = | |
98 | "OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n" | |
99 | "SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n" | |
100 | "LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n" | |
101 | "DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n" | |
102 | "THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n" | |
103 | "(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n" | |
104 | "OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n" | |
105 | "\n"; | |
106 | #endif /* CONFIG_NO_STDOUT_DEBUG */ | |
107 | ||
108 | /* Configure default/group WEP keys for static WEP */ | |
109 | int wpa_set_wep_keys(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid) | |
110 | { | |
111 | int i, set = 0; | |
112 | ||
113 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
114 | if (ssid->wep_key_len[i] == 0) | |
115 | continue; | |
116 | ||
117 | set = 1; | |
118 | wpa_drv_set_key(wpa_s, WPA_ALG_WEP, NULL, | |
119 | i, i == ssid->wep_tx_keyidx, NULL, 0, | |
120 | ssid->wep_key[i], ssid->wep_key_len[i]); | |
121 | } | |
122 | ||
123 | return set; | |
124 | } | |
125 | ||
126 | ||
127 | int wpa_supplicant_set_wpa_none_key(struct wpa_supplicant *wpa_s, | |
128 | struct wpa_ssid *ssid) | |
129 | { | |
130 | u8 key[32]; | |
131 | size_t keylen; | |
132 | enum wpa_alg alg; | |
133 | u8 seq[6] = { 0 }; | |
134 | ||
135 | /* IBSS/WPA-None uses only one key (Group) for both receiving and | |
136 | * sending unicast and multicast packets. */ | |
137 | ||
138 | if (ssid->mode != WPAS_MODE_IBSS) { | |
139 | wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid mode %d (not " | |
140 | "IBSS/ad-hoc) for WPA-None", ssid->mode); | |
141 | return -1; | |
142 | } | |
143 | ||
144 | if (!ssid->psk_set) { | |
145 | wpa_msg(wpa_s, MSG_INFO, "WPA: No PSK configured for " | |
146 | "WPA-None"); | |
147 | return -1; | |
148 | } | |
149 | ||
150 | switch (wpa_s->group_cipher) { | |
151 | case WPA_CIPHER_CCMP: | |
152 | os_memcpy(key, ssid->psk, 16); | |
153 | keylen = 16; | |
154 | alg = WPA_ALG_CCMP; | |
155 | break; | |
156 | case WPA_CIPHER_GCMP: | |
157 | os_memcpy(key, ssid->psk, 16); | |
158 | keylen = 16; | |
159 | alg = WPA_ALG_GCMP; | |
160 | break; | |
161 | case WPA_CIPHER_TKIP: | |
162 | /* WPA-None uses the same Michael MIC key for both TX and RX */ | |
163 | os_memcpy(key, ssid->psk, 16 + 8); | |
164 | os_memcpy(key + 16 + 8, ssid->psk + 16, 8); | |
165 | keylen = 32; | |
166 | alg = WPA_ALG_TKIP; | |
167 | break; | |
168 | default: | |
169 | wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid group cipher %d for " | |
170 | "WPA-None", wpa_s->group_cipher); | |
171 | return -1; | |
172 | } | |
173 | ||
174 | /* TODO: should actually remember the previously used seq#, both for TX | |
175 | * and RX from each STA.. */ | |
176 | ||
177 | return wpa_drv_set_key(wpa_s, alg, NULL, 0, 1, seq, 6, key, keylen); | |
178 | } | |
179 | ||
180 | ||
181 | static void wpa_supplicant_timeout(void *eloop_ctx, void *timeout_ctx) | |
182 | { | |
183 | struct wpa_supplicant *wpa_s = eloop_ctx; | |
184 | const u8 *bssid = wpa_s->bssid; | |
185 | if (is_zero_ether_addr(bssid)) | |
186 | bssid = wpa_s->pending_bssid; | |
187 | wpa_msg(wpa_s, MSG_INFO, "Authentication with " MACSTR " timed out.", | |
188 | MAC2STR(bssid)); | |
189 | wpa_blacklist_add(wpa_s, bssid); | |
190 | wpa_sm_notify_disassoc(wpa_s->wpa); | |
191 | wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
192 | wpa_s->reassociate = 1; | |
193 | ||
194 | /* | |
195 | * If we timed out, the AP or the local radio may be busy. | |
196 | * So, wait a second until scanning again. | |
197 | */ | |
198 | wpa_supplicant_req_scan(wpa_s, 1, 0); | |
199 | } | |
200 | ||
201 | ||
202 | /** | |
203 | * wpa_supplicant_req_auth_timeout - Schedule a timeout for authentication | |
204 | * @wpa_s: Pointer to wpa_supplicant data | |
205 | * @sec: Number of seconds after which to time out authentication | |
206 | * @usec: Number of microseconds after which to time out authentication | |
207 | * | |
208 | * This function is used to schedule a timeout for the current authentication | |
209 | * attempt. | |
210 | */ | |
211 | void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s, | |
212 | int sec, int usec) | |
213 | { | |
214 | if (wpa_s->conf->ap_scan == 0 && | |
215 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)) | |
216 | return; | |
217 | ||
218 | wpa_dbg(wpa_s, MSG_DEBUG, "Setting authentication timeout: %d sec " | |
219 | "%d usec", sec, usec); | |
220 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
221 | eloop_register_timeout(sec, usec, wpa_supplicant_timeout, wpa_s, NULL); | |
222 | } | |
223 | ||
224 | ||
225 | /** | |
226 | * wpa_supplicant_cancel_auth_timeout - Cancel authentication timeout | |
227 | * @wpa_s: Pointer to wpa_supplicant data | |
228 | * | |
229 | * This function is used to cancel authentication timeout scheduled with | |
230 | * wpa_supplicant_req_auth_timeout() and it is called when authentication has | |
231 | * been completed. | |
232 | */ | |
233 | void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s) | |
234 | { | |
235 | wpa_dbg(wpa_s, MSG_DEBUG, "Cancelling authentication timeout"); | |
236 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
237 | wpa_blacklist_del(wpa_s, wpa_s->bssid); | |
238 | } | |
239 | ||
240 | ||
241 | /** | |
242 | * wpa_supplicant_initiate_eapol - Configure EAPOL state machine | |
243 | * @wpa_s: Pointer to wpa_supplicant data | |
244 | * | |
245 | * This function is used to configure EAPOL state machine based on the selected | |
246 | * authentication mode. | |
247 | */ | |
248 | void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s) | |
249 | { | |
250 | #ifdef IEEE8021X_EAPOL | |
251 | struct eapol_config eapol_conf; | |
252 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
253 | ||
254 | #ifdef CONFIG_IBSS_RSN | |
255 | if (ssid->mode == WPAS_MODE_IBSS && | |
256 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && | |
257 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { | |
258 | /* | |
259 | * RSN IBSS authentication is per-STA and we can disable the | |
260 | * per-BSSID EAPOL authentication. | |
261 | */ | |
262 | eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized); | |
263 | eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); | |
264 | eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); | |
265 | return; | |
266 | } | |
267 | #endif /* CONFIG_IBSS_RSN */ | |
268 | ||
269 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); | |
270 | eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); | |
271 | ||
272 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || | |
273 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) | |
274 | eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized); | |
275 | else | |
276 | eapol_sm_notify_portControl(wpa_s->eapol, Auto); | |
277 | ||
278 | os_memset(&eapol_conf, 0, sizeof(eapol_conf)); | |
279 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
280 | eapol_conf.accept_802_1x_keys = 1; | |
281 | eapol_conf.required_keys = 0; | |
282 | if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_UNICAST) { | |
283 | eapol_conf.required_keys |= EAPOL_REQUIRE_KEY_UNICAST; | |
284 | } | |
285 | if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_BROADCAST) { | |
286 | eapol_conf.required_keys |= | |
287 | EAPOL_REQUIRE_KEY_BROADCAST; | |
288 | } | |
289 | ||
290 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED) | |
291 | eapol_conf.required_keys = 0; | |
292 | } | |
293 | eapol_conf.fast_reauth = wpa_s->conf->fast_reauth; | |
294 | eapol_conf.workaround = ssid->eap_workaround; | |
295 | eapol_conf.eap_disabled = | |
296 | !wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) && | |
297 | wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA && | |
298 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPS; | |
299 | eapol_conf.external_sim = wpa_s->conf->external_sim; | |
300 | ||
301 | #ifdef CONFIG_WPS | |
302 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) { | |
303 | eapol_conf.wps |= EAPOL_LOCAL_WPS_IN_USE; | |
304 | if (wpa_s->current_bss) { | |
305 | struct wpabuf *ie; | |
306 | ie = wpa_bss_get_vendor_ie_multi(wpa_s->current_bss, | |
307 | WPS_IE_VENDOR_TYPE); | |
308 | if (ie) { | |
309 | if (wps_is_20(ie)) | |
310 | eapol_conf.wps |= | |
311 | EAPOL_PEER_IS_WPS20_AP; | |
312 | wpabuf_free(ie); | |
313 | } | |
314 | } | |
315 | } | |
316 | #endif /* CONFIG_WPS */ | |
317 | ||
318 | eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf); | |
319 | ||
320 | ieee802_1x_alloc_kay_sm(wpa_s, ssid); | |
321 | #endif /* IEEE8021X_EAPOL */ | |
322 | } | |
323 | ||
324 | ||
325 | /** | |
326 | * wpa_supplicant_set_non_wpa_policy - Set WPA parameters to non-WPA mode | |
327 | * @wpa_s: Pointer to wpa_supplicant data | |
328 | * @ssid: Configuration data for the network | |
329 | * | |
330 | * This function is used to configure WPA state machine and related parameters | |
331 | * to a mode where WPA is not enabled. This is called as part of the | |
332 | * authentication configuration when the selected network does not use WPA. | |
333 | */ | |
334 | void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s, | |
335 | struct wpa_ssid *ssid) | |
336 | { | |
337 | int i; | |
338 | ||
339 | if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) | |
340 | wpa_s->key_mgmt = WPA_KEY_MGMT_WPS; | |
341 | else if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) | |
342 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_NO_WPA; | |
343 | else | |
344 | wpa_s->key_mgmt = WPA_KEY_MGMT_NONE; | |
345 | wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); | |
346 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); | |
347 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); | |
348 | wpa_s->pairwise_cipher = WPA_CIPHER_NONE; | |
349 | wpa_s->group_cipher = WPA_CIPHER_NONE; | |
350 | wpa_s->mgmt_group_cipher = 0; | |
351 | ||
352 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
353 | if (ssid->wep_key_len[i] > 5) { | |
354 | wpa_s->pairwise_cipher = WPA_CIPHER_WEP104; | |
355 | wpa_s->group_cipher = WPA_CIPHER_WEP104; | |
356 | break; | |
357 | } else if (ssid->wep_key_len[i] > 0) { | |
358 | wpa_s->pairwise_cipher = WPA_CIPHER_WEP40; | |
359 | wpa_s->group_cipher = WPA_CIPHER_WEP40; | |
360 | break; | |
361 | } | |
362 | } | |
363 | ||
364 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, 0); | |
365 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); | |
366 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, | |
367 | wpa_s->pairwise_cipher); | |
368 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); | |
369 | #ifdef CONFIG_IEEE80211W | |
370 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, | |
371 | wpa_s->mgmt_group_cipher); | |
372 | #endif /* CONFIG_IEEE80211W */ | |
373 | ||
374 | pmksa_cache_clear_current(wpa_s->wpa); | |
375 | } | |
376 | ||
377 | ||
378 | void free_hw_features(struct wpa_supplicant *wpa_s) | |
379 | { | |
380 | int i; | |
381 | if (wpa_s->hw.modes == NULL) | |
382 | return; | |
383 | ||
384 | for (i = 0; i < wpa_s->hw.num_modes; i++) { | |
385 | os_free(wpa_s->hw.modes[i].channels); | |
386 | os_free(wpa_s->hw.modes[i].rates); | |
387 | } | |
388 | ||
389 | os_free(wpa_s->hw.modes); | |
390 | wpa_s->hw.modes = NULL; | |
391 | } | |
392 | ||
393 | ||
394 | static void wpa_supplicant_cleanup(struct wpa_supplicant *wpa_s) | |
395 | { | |
396 | int i; | |
397 | ||
398 | bgscan_deinit(wpa_s); | |
399 | autoscan_deinit(wpa_s); | |
400 | scard_deinit(wpa_s->scard); | |
401 | wpa_s->scard = NULL; | |
402 | wpa_sm_set_scard_ctx(wpa_s->wpa, NULL); | |
403 | eapol_sm_register_scard_ctx(wpa_s->eapol, NULL); | |
404 | l2_packet_deinit(wpa_s->l2); | |
405 | wpa_s->l2 = NULL; | |
406 | if (wpa_s->l2_br) { | |
407 | l2_packet_deinit(wpa_s->l2_br); | |
408 | wpa_s->l2_br = NULL; | |
409 | } | |
410 | #ifdef CONFIG_TESTING_OPTIONS | |
411 | l2_packet_deinit(wpa_s->l2_test); | |
412 | wpa_s->l2_test = NULL; | |
413 | #endif /* CONFIG_TESTING_OPTIONS */ | |
414 | ||
415 | if (wpa_s->conf != NULL) { | |
416 | struct wpa_ssid *ssid; | |
417 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) | |
418 | wpas_notify_network_removed(wpa_s, ssid); | |
419 | } | |
420 | ||
421 | os_free(wpa_s->confname); | |
422 | wpa_s->confname = NULL; | |
423 | ||
424 | os_free(wpa_s->confanother); | |
425 | wpa_s->confanother = NULL; | |
426 | ||
427 | wpa_sm_set_eapol(wpa_s->wpa, NULL); | |
428 | eapol_sm_deinit(wpa_s->eapol); | |
429 | wpa_s->eapol = NULL; | |
430 | ||
431 | rsn_preauth_deinit(wpa_s->wpa); | |
432 | ||
433 | #ifdef CONFIG_TDLS | |
434 | wpa_tdls_deinit(wpa_s->wpa); | |
435 | #endif /* CONFIG_TDLS */ | |
436 | ||
437 | pmksa_candidate_free(wpa_s->wpa); | |
438 | wpa_sm_deinit(wpa_s->wpa); | |
439 | wpa_s->wpa = NULL; | |
440 | wpa_blacklist_clear(wpa_s); | |
441 | ||
442 | wpa_bss_deinit(wpa_s); | |
443 | ||
444 | wpa_supplicant_cancel_delayed_sched_scan(wpa_s); | |
445 | wpa_supplicant_cancel_scan(wpa_s); | |
446 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
447 | eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, wpa_s, NULL); | |
448 | #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT | |
449 | eloop_cancel_timeout(wpa_supplicant_delayed_mic_error_report, | |
450 | wpa_s, NULL); | |
451 | #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ | |
452 | ||
453 | wpas_wps_deinit(wpa_s); | |
454 | ||
455 | wpabuf_free(wpa_s->pending_eapol_rx); | |
456 | wpa_s->pending_eapol_rx = NULL; | |
457 | ||
458 | #ifdef CONFIG_IBSS_RSN | |
459 | ibss_rsn_deinit(wpa_s->ibss_rsn); | |
460 | wpa_s->ibss_rsn = NULL; | |
461 | #endif /* CONFIG_IBSS_RSN */ | |
462 | ||
463 | sme_deinit(wpa_s); | |
464 | ||
465 | #ifdef CONFIG_AP | |
466 | wpa_supplicant_ap_deinit(wpa_s); | |
467 | #endif /* CONFIG_AP */ | |
468 | ||
469 | wpas_p2p_deinit(wpa_s); | |
470 | ||
471 | #ifdef CONFIG_OFFCHANNEL | |
472 | offchannel_deinit(wpa_s); | |
473 | #endif /* CONFIG_OFFCHANNEL */ | |
474 | ||
475 | wpa_supplicant_cancel_sched_scan(wpa_s); | |
476 | ||
477 | os_free(wpa_s->next_scan_freqs); | |
478 | wpa_s->next_scan_freqs = NULL; | |
479 | ||
480 | os_free(wpa_s->manual_scan_freqs); | |
481 | wpa_s->manual_scan_freqs = NULL; | |
482 | ||
483 | os_free(wpa_s->manual_sched_scan_freqs); | |
484 | wpa_s->manual_sched_scan_freqs = NULL; | |
485 | ||
486 | gas_query_deinit(wpa_s->gas); | |
487 | wpa_s->gas = NULL; | |
488 | ||
489 | free_hw_features(wpa_s); | |
490 | ||
491 | ieee802_1x_dealloc_kay_sm(wpa_s); | |
492 | ||
493 | os_free(wpa_s->bssid_filter); | |
494 | wpa_s->bssid_filter = NULL; | |
495 | ||
496 | os_free(wpa_s->disallow_aps_bssid); | |
497 | wpa_s->disallow_aps_bssid = NULL; | |
498 | os_free(wpa_s->disallow_aps_ssid); | |
499 | wpa_s->disallow_aps_ssid = NULL; | |
500 | ||
501 | wnm_bss_keep_alive_deinit(wpa_s); | |
502 | #ifdef CONFIG_WNM | |
503 | wnm_deallocate_memory(wpa_s); | |
504 | #endif /* CONFIG_WNM */ | |
505 | ||
506 | ext_password_deinit(wpa_s->ext_pw); | |
507 | wpa_s->ext_pw = NULL; | |
508 | ||
509 | wpabuf_free(wpa_s->last_gas_resp); | |
510 | wpa_s->last_gas_resp = NULL; | |
511 | wpabuf_free(wpa_s->prev_gas_resp); | |
512 | wpa_s->prev_gas_resp = NULL; | |
513 | ||
514 | os_free(wpa_s->last_scan_res); | |
515 | wpa_s->last_scan_res = NULL; | |
516 | ||
517 | #ifdef CONFIG_HS20 | |
518 | hs20_deinit(wpa_s); | |
519 | #endif /* CONFIG_HS20 */ | |
520 | ||
521 | for (i = 0; i < NUM_VENDOR_ELEM_FRAMES; i++) { | |
522 | wpabuf_free(wpa_s->vendor_elem[i]); | |
523 | wpa_s->vendor_elem[i] = NULL; | |
524 | } | |
525 | } | |
526 | ||
527 | ||
528 | /** | |
529 | * wpa_clear_keys - Clear keys configured for the driver | |
530 | * @wpa_s: Pointer to wpa_supplicant data | |
531 | * @addr: Previously used BSSID or %NULL if not available | |
532 | * | |
533 | * This function clears the encryption keys that has been previously configured | |
534 | * for the driver. | |
535 | */ | |
536 | void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr) | |
537 | { | |
538 | int i, max; | |
539 | ||
540 | #ifdef CONFIG_IEEE80211W | |
541 | max = 6; | |
542 | #else /* CONFIG_IEEE80211W */ | |
543 | max = 4; | |
544 | #endif /* CONFIG_IEEE80211W */ | |
545 | ||
546 | /* MLME-DELETEKEYS.request */ | |
547 | for (i = 0; i < max; i++) { | |
548 | if (wpa_s->keys_cleared & BIT(i)) | |
549 | continue; | |
550 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, i, 0, NULL, 0, | |
551 | NULL, 0); | |
552 | } | |
553 | if (!(wpa_s->keys_cleared & BIT(0)) && addr && | |
554 | !is_zero_ether_addr(addr)) { | |
555 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, addr, 0, 0, NULL, 0, NULL, | |
556 | 0); | |
557 | /* MLME-SETPROTECTION.request(None) */ | |
558 | wpa_drv_mlme_setprotection( | |
559 | wpa_s, addr, | |
560 | MLME_SETPROTECTION_PROTECT_TYPE_NONE, | |
561 | MLME_SETPROTECTION_KEY_TYPE_PAIRWISE); | |
562 | } | |
563 | wpa_s->keys_cleared = (u32) -1; | |
564 | } | |
565 | ||
566 | ||
567 | /** | |
568 | * wpa_supplicant_state_txt - Get the connection state name as a text string | |
569 | * @state: State (wpa_state; WPA_*) | |
570 | * Returns: The state name as a printable text string | |
571 | */ | |
572 | const char * wpa_supplicant_state_txt(enum wpa_states state) | |
573 | { | |
574 | switch (state) { | |
575 | case WPA_DISCONNECTED: | |
576 | return "DISCONNECTED"; | |
577 | case WPA_INACTIVE: | |
578 | return "INACTIVE"; | |
579 | case WPA_INTERFACE_DISABLED: | |
580 | return "INTERFACE_DISABLED"; | |
581 | case WPA_SCANNING: | |
582 | return "SCANNING"; | |
583 | case WPA_AUTHENTICATING: | |
584 | return "AUTHENTICATING"; | |
585 | case WPA_ASSOCIATING: | |
586 | return "ASSOCIATING"; | |
587 | case WPA_ASSOCIATED: | |
588 | return "ASSOCIATED"; | |
589 | case WPA_4WAY_HANDSHAKE: | |
590 | return "4WAY_HANDSHAKE"; | |
591 | case WPA_GROUP_HANDSHAKE: | |
592 | return "GROUP_HANDSHAKE"; | |
593 | case WPA_COMPLETED: | |
594 | return "COMPLETED"; | |
595 | default: | |
596 | return "UNKNOWN"; | |
597 | } | |
598 | } | |
599 | ||
600 | ||
601 | #ifdef CONFIG_BGSCAN | |
602 | ||
603 | static void wpa_supplicant_start_bgscan(struct wpa_supplicant *wpa_s) | |
604 | { | |
605 | const char *name; | |
606 | ||
607 | if (wpa_s->current_ssid && wpa_s->current_ssid->bgscan) | |
608 | name = wpa_s->current_ssid->bgscan; | |
609 | else | |
610 | name = wpa_s->conf->bgscan; | |
611 | if (name == NULL || name[0] == '\0') | |
612 | return; | |
613 | if (wpas_driver_bss_selection(wpa_s)) | |
614 | return; | |
615 | if (wpa_s->current_ssid == wpa_s->bgscan_ssid) | |
616 | return; | |
617 | #ifdef CONFIG_P2P | |
618 | if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) | |
619 | return; | |
620 | #endif /* CONFIG_P2P */ | |
621 | ||
622 | bgscan_deinit(wpa_s); | |
623 | if (wpa_s->current_ssid) { | |
624 | if (bgscan_init(wpa_s, wpa_s->current_ssid, name)) { | |
625 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize " | |
626 | "bgscan"); | |
627 | /* | |
628 | * Live without bgscan; it is only used as a roaming | |
629 | * optimization, so the initial connection is not | |
630 | * affected. | |
631 | */ | |
632 | } else { | |
633 | struct wpa_scan_results *scan_res; | |
634 | wpa_s->bgscan_ssid = wpa_s->current_ssid; | |
635 | scan_res = wpa_supplicant_get_scan_results(wpa_s, NULL, | |
636 | 0); | |
637 | if (scan_res) { | |
638 | bgscan_notify_scan(wpa_s, scan_res); | |
639 | wpa_scan_results_free(scan_res); | |
640 | } | |
641 | } | |
642 | } else | |
643 | wpa_s->bgscan_ssid = NULL; | |
644 | } | |
645 | ||
646 | ||
647 | static void wpa_supplicant_stop_bgscan(struct wpa_supplicant *wpa_s) | |
648 | { | |
649 | if (wpa_s->bgscan_ssid != NULL) { | |
650 | bgscan_deinit(wpa_s); | |
651 | wpa_s->bgscan_ssid = NULL; | |
652 | } | |
653 | } | |
654 | ||
655 | #endif /* CONFIG_BGSCAN */ | |
656 | ||
657 | ||
658 | static void wpa_supplicant_start_autoscan(struct wpa_supplicant *wpa_s) | |
659 | { | |
660 | if (autoscan_init(wpa_s, 0)) | |
661 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize autoscan"); | |
662 | } | |
663 | ||
664 | ||
665 | static void wpa_supplicant_stop_autoscan(struct wpa_supplicant *wpa_s) | |
666 | { | |
667 | autoscan_deinit(wpa_s); | |
668 | } | |
669 | ||
670 | ||
671 | void wpa_supplicant_reinit_autoscan(struct wpa_supplicant *wpa_s) | |
672 | { | |
673 | if (wpa_s->wpa_state == WPA_DISCONNECTED || | |
674 | wpa_s->wpa_state == WPA_SCANNING) { | |
675 | autoscan_deinit(wpa_s); | |
676 | wpa_supplicant_start_autoscan(wpa_s); | |
677 | } | |
678 | } | |
679 | ||
680 | ||
681 | /** | |
682 | * wpa_supplicant_set_state - Set current connection state | |
683 | * @wpa_s: Pointer to wpa_supplicant data | |
684 | * @state: The new connection state | |
685 | * | |
686 | * This function is called whenever the connection state changes, e.g., | |
687 | * association is completed for WPA/WPA2 4-Way Handshake is started. | |
688 | */ | |
689 | void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s, | |
690 | enum wpa_states state) | |
691 | { | |
692 | enum wpa_states old_state = wpa_s->wpa_state; | |
693 | ||
694 | wpa_dbg(wpa_s, MSG_DEBUG, "State: %s -> %s", | |
695 | wpa_supplicant_state_txt(wpa_s->wpa_state), | |
696 | wpa_supplicant_state_txt(state)); | |
697 | ||
698 | if (state == WPA_INTERFACE_DISABLED) { | |
699 | /* Assure normal scan when interface is restored */ | |
700 | wpa_s->normal_scans = 0; | |
701 | } | |
702 | ||
703 | if (state == WPA_COMPLETED) { | |
704 | wpas_connect_work_done(wpa_s); | |
705 | /* Reinitialize normal_scan counter */ | |
706 | wpa_s->normal_scans = 0; | |
707 | } | |
708 | ||
709 | if (state != WPA_SCANNING) | |
710 | wpa_supplicant_notify_scanning(wpa_s, 0); | |
711 | ||
712 | if (state == WPA_COMPLETED && wpa_s->new_connection) { | |
713 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
714 | #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG) | |
715 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CONNECTED "- Connection to " | |
716 | MACSTR " completed [id=%d id_str=%s]", | |
717 | MAC2STR(wpa_s->bssid), | |
718 | ssid ? ssid->id : -1, | |
719 | ssid && ssid->id_str ? ssid->id_str : ""); | |
720 | #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */ | |
721 | wpas_clear_temp_disabled(wpa_s, ssid, 1); | |
722 | wpa_s->extra_blacklist_count = 0; | |
723 | wpa_s->new_connection = 0; | |
724 | wpa_drv_set_operstate(wpa_s, 1); | |
725 | #ifndef IEEE8021X_EAPOL | |
726 | wpa_drv_set_supp_port(wpa_s, 1); | |
727 | #endif /* IEEE8021X_EAPOL */ | |
728 | wpa_s->after_wps = 0; | |
729 | wpa_s->known_wps_freq = 0; | |
730 | wpas_p2p_completed(wpa_s); | |
731 | ||
732 | sme_sched_obss_scan(wpa_s, 1); | |
733 | } else if (state == WPA_DISCONNECTED || state == WPA_ASSOCIATING || | |
734 | state == WPA_ASSOCIATED) { | |
735 | wpa_s->new_connection = 1; | |
736 | wpa_drv_set_operstate(wpa_s, 0); | |
737 | #ifndef IEEE8021X_EAPOL | |
738 | wpa_drv_set_supp_port(wpa_s, 0); | |
739 | #endif /* IEEE8021X_EAPOL */ | |
740 | sme_sched_obss_scan(wpa_s, 0); | |
741 | } | |
742 | wpa_s->wpa_state = state; | |
743 | ||
744 | #ifdef CONFIG_BGSCAN | |
745 | if (state == WPA_COMPLETED) | |
746 | wpa_supplicant_start_bgscan(wpa_s); | |
747 | else if (state < WPA_ASSOCIATED) | |
748 | wpa_supplicant_stop_bgscan(wpa_s); | |
749 | #endif /* CONFIG_BGSCAN */ | |
750 | ||
751 | if (state == WPA_AUTHENTICATING) | |
752 | wpa_supplicant_stop_autoscan(wpa_s); | |
753 | ||
754 | if (state == WPA_DISCONNECTED || state == WPA_INACTIVE) | |
755 | wpa_supplicant_start_autoscan(wpa_s); | |
756 | ||
757 | if (wpa_s->wpa_state != old_state) { | |
758 | wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state); | |
759 | ||
760 | /* | |
761 | * Notify the P2P Device interface about a state change in one | |
762 | * of the interfaces. | |
763 | */ | |
764 | wpas_p2p_indicate_state_change(wpa_s); | |
765 | ||
766 | if (wpa_s->wpa_state == WPA_COMPLETED || | |
767 | old_state == WPA_COMPLETED) | |
768 | wpas_notify_auth_changed(wpa_s); | |
769 | } | |
770 | } | |
771 | ||
772 | ||
773 | void wpa_supplicant_terminate_proc(struct wpa_global *global) | |
774 | { | |
775 | int pending = 0; | |
776 | #ifdef CONFIG_WPS | |
777 | struct wpa_supplicant *wpa_s = global->ifaces; | |
778 | while (wpa_s) { | |
779 | struct wpa_supplicant *next = wpa_s->next; | |
780 | if (wpas_wps_terminate_pending(wpa_s) == 1) | |
781 | pending = 1; | |
782 | #ifdef CONFIG_P2P | |
783 | if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE || | |
784 | (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group)) | |
785 | wpas_p2p_disconnect(wpa_s); | |
786 | #endif /* CONFIG_P2P */ | |
787 | wpa_s = next; | |
788 | } | |
789 | #endif /* CONFIG_WPS */ | |
790 | if (pending) | |
791 | return; | |
792 | eloop_terminate(); | |
793 | } | |
794 | ||
795 | ||
796 | static void wpa_supplicant_terminate(int sig, void *signal_ctx) | |
797 | { | |
798 | struct wpa_global *global = signal_ctx; | |
799 | wpa_supplicant_terminate_proc(global); | |
800 | } | |
801 | ||
802 | ||
803 | void wpa_supplicant_clear_status(struct wpa_supplicant *wpa_s) | |
804 | { | |
805 | enum wpa_states old_state = wpa_s->wpa_state; | |
806 | ||
807 | wpa_s->pairwise_cipher = 0; | |
808 | wpa_s->group_cipher = 0; | |
809 | wpa_s->mgmt_group_cipher = 0; | |
810 | wpa_s->key_mgmt = 0; | |
811 | if (wpa_s->wpa_state != WPA_INTERFACE_DISABLED) | |
812 | wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); | |
813 | ||
814 | if (wpa_s->wpa_state != old_state) | |
815 | wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state); | |
816 | } | |
817 | ||
818 | ||
819 | /** | |
820 | * wpa_supplicant_reload_configuration - Reload configuration data | |
821 | * @wpa_s: Pointer to wpa_supplicant data | |
822 | * Returns: 0 on success or -1 if configuration parsing failed | |
823 | * | |
824 | * This function can be used to request that the configuration data is reloaded | |
825 | * (e.g., after configuration file change). This function is reloading | |
826 | * configuration only for one interface, so this may need to be called multiple | |
827 | * times if %wpa_supplicant is controlling multiple interfaces and all | |
828 | * interfaces need reconfiguration. | |
829 | */ | |
830 | int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s) | |
831 | { | |
832 | struct wpa_config *conf; | |
833 | int reconf_ctrl; | |
834 | int old_ap_scan; | |
835 | ||
836 | if (wpa_s->confname == NULL) | |
837 | return -1; | |
838 | conf = wpa_config_read(wpa_s->confname, NULL); | |
839 | if (conf == NULL) { | |
840 | wpa_msg(wpa_s, MSG_ERROR, "Failed to parse the configuration " | |
841 | "file '%s' - exiting", wpa_s->confname); | |
842 | return -1; | |
843 | } | |
844 | wpa_config_read(wpa_s->confanother, conf); | |
845 | ||
846 | conf->changed_parameters = (unsigned int) -1; | |
847 | ||
848 | reconf_ctrl = !!conf->ctrl_interface != !!wpa_s->conf->ctrl_interface | |
849 | || (conf->ctrl_interface && wpa_s->conf->ctrl_interface && | |
850 | os_strcmp(conf->ctrl_interface, | |
851 | wpa_s->conf->ctrl_interface) != 0); | |
852 | ||
853 | if (reconf_ctrl && wpa_s->ctrl_iface) { | |
854 | wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); | |
855 | wpa_s->ctrl_iface = NULL; | |
856 | } | |
857 | ||
858 | eapol_sm_invalidate_cached_session(wpa_s->eapol); | |
859 | if (wpa_s->current_ssid) { | |
860 | wpa_supplicant_deauthenticate(wpa_s, | |
861 | WLAN_REASON_DEAUTH_LEAVING); | |
862 | } | |
863 | ||
864 | /* | |
865 | * TODO: should notify EAPOL SM about changes in opensc_engine_path, | |
866 | * pkcs11_engine_path, pkcs11_module_path, openssl_ciphers. | |
867 | */ | |
868 | if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { | |
869 | /* | |
870 | * Clear forced success to clear EAP state for next | |
871 | * authentication. | |
872 | */ | |
873 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); | |
874 | } | |
875 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
876 | wpa_sm_set_config(wpa_s->wpa, NULL); | |
877 | wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL); | |
878 | wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); | |
879 | rsn_preauth_deinit(wpa_s->wpa); | |
880 | ||
881 | old_ap_scan = wpa_s->conf->ap_scan; | |
882 | wpa_config_free(wpa_s->conf); | |
883 | wpa_s->conf = conf; | |
884 | if (old_ap_scan != wpa_s->conf->ap_scan) | |
885 | wpas_notify_ap_scan_changed(wpa_s); | |
886 | ||
887 | if (reconf_ctrl) | |
888 | wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); | |
889 | ||
890 | wpa_supplicant_update_config(wpa_s); | |
891 | ||
892 | wpa_supplicant_clear_status(wpa_s); | |
893 | if (wpa_supplicant_enabled_networks(wpa_s)) { | |
894 | wpa_s->reassociate = 1; | |
895 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
896 | } | |
897 | wpa_dbg(wpa_s, MSG_DEBUG, "Reconfiguration completed"); | |
898 | return 0; | |
899 | } | |
900 | ||
901 | ||
902 | static void wpa_supplicant_reconfig(int sig, void *signal_ctx) | |
903 | { | |
904 | struct wpa_global *global = signal_ctx; | |
905 | struct wpa_supplicant *wpa_s; | |
906 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { | |
907 | wpa_dbg(wpa_s, MSG_DEBUG, "Signal %d received - reconfiguring", | |
908 | sig); | |
909 | if (wpa_supplicant_reload_configuration(wpa_s) < 0) { | |
910 | wpa_supplicant_terminate_proc(global); | |
911 | } | |
912 | } | |
913 | } | |
914 | ||
915 | ||
916 | static int wpa_supplicant_suites_from_ai(struct wpa_supplicant *wpa_s, | |
917 | struct wpa_ssid *ssid, | |
918 | struct wpa_ie_data *ie) | |
919 | { | |
920 | int ret = wpa_sm_parse_own_wpa_ie(wpa_s->wpa, ie); | |
921 | if (ret) { | |
922 | if (ret == -2) { | |
923 | wpa_msg(wpa_s, MSG_INFO, "WPA: Failed to parse WPA IE " | |
924 | "from association info"); | |
925 | } | |
926 | return -1; | |
927 | } | |
928 | ||
929 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Using WPA IE from AssocReq to set " | |
930 | "cipher suites"); | |
931 | if (!(ie->group_cipher & ssid->group_cipher)) { | |
932 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled group " | |
933 | "cipher 0x%x (mask 0x%x) - reject", | |
934 | ie->group_cipher, ssid->group_cipher); | |
935 | return -1; | |
936 | } | |
937 | if (!(ie->pairwise_cipher & ssid->pairwise_cipher)) { | |
938 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled pairwise " | |
939 | "cipher 0x%x (mask 0x%x) - reject", | |
940 | ie->pairwise_cipher, ssid->pairwise_cipher); | |
941 | return -1; | |
942 | } | |
943 | if (!(ie->key_mgmt & ssid->key_mgmt)) { | |
944 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled key " | |
945 | "management 0x%x (mask 0x%x) - reject", | |
946 | ie->key_mgmt, ssid->key_mgmt); | |
947 | return -1; | |
948 | } | |
949 | ||
950 | #ifdef CONFIG_IEEE80211W | |
951 | if (!(ie->capabilities & WPA_CAPABILITY_MFPC) && | |
952 | (ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ? | |
953 | wpa_s->conf->pmf : ssid->ieee80211w) == | |
954 | MGMT_FRAME_PROTECTION_REQUIRED) { | |
955 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver associated with an AP " | |
956 | "that does not support management frame protection - " | |
957 | "reject"); | |
958 | return -1; | |
959 | } | |
960 | #endif /* CONFIG_IEEE80211W */ | |
961 | ||
962 | return 0; | |
963 | } | |
964 | ||
965 | ||
966 | /** | |
967 | * wpa_supplicant_set_suites - Set authentication and encryption parameters | |
968 | * @wpa_s: Pointer to wpa_supplicant data | |
969 | * @bss: Scan results for the selected BSS, or %NULL if not available | |
970 | * @ssid: Configuration data for the selected network | |
971 | * @wpa_ie: Buffer for the WPA/RSN IE | |
972 | * @wpa_ie_len: Maximum wpa_ie buffer size on input. This is changed to be the | |
973 | * used buffer length in case the functions returns success. | |
974 | * Returns: 0 on success or -1 on failure | |
975 | * | |
976 | * This function is used to configure authentication and encryption parameters | |
977 | * based on the network configuration and scan result for the selected BSS (if | |
978 | * available). | |
979 | */ | |
980 | int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s, | |
981 | struct wpa_bss *bss, struct wpa_ssid *ssid, | |
982 | u8 *wpa_ie, size_t *wpa_ie_len) | |
983 | { | |
984 | struct wpa_ie_data ie; | |
985 | int sel, proto; | |
986 | const u8 *bss_wpa, *bss_rsn, *bss_osen; | |
987 | ||
988 | if (bss) { | |
989 | bss_wpa = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); | |
990 | bss_rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); | |
991 | bss_osen = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE); | |
992 | } else | |
993 | bss_wpa = bss_rsn = bss_osen = NULL; | |
994 | ||
995 | if (bss_rsn && (ssid->proto & WPA_PROTO_RSN) && | |
996 | wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie) == 0 && | |
997 | (ie.group_cipher & ssid->group_cipher) && | |
998 | (ie.pairwise_cipher & ssid->pairwise_cipher) && | |
999 | (ie.key_mgmt & ssid->key_mgmt)) { | |
1000 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using IEEE 802.11i/D9.0"); | |
1001 | proto = WPA_PROTO_RSN; | |
1002 | } else if (bss_wpa && (ssid->proto & WPA_PROTO_WPA) && | |
1003 | wpa_parse_wpa_ie(bss_wpa, 2 +bss_wpa[1], &ie) == 0 && | |
1004 | (ie.group_cipher & ssid->group_cipher) && | |
1005 | (ie.pairwise_cipher & ssid->pairwise_cipher) && | |
1006 | (ie.key_mgmt & ssid->key_mgmt)) { | |
1007 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using IEEE 802.11i/D3.0"); | |
1008 | proto = WPA_PROTO_WPA; | |
1009 | #ifdef CONFIG_HS20 | |
1010 | } else if (bss_osen && (ssid->proto & WPA_PROTO_OSEN)) { | |
1011 | wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: using OSEN"); | |
1012 | /* TODO: parse OSEN element */ | |
1013 | os_memset(&ie, 0, sizeof(ie)); | |
1014 | ie.group_cipher = WPA_CIPHER_CCMP; | |
1015 | ie.pairwise_cipher = WPA_CIPHER_CCMP; | |
1016 | ie.key_mgmt = WPA_KEY_MGMT_OSEN; | |
1017 | proto = WPA_PROTO_OSEN; | |
1018 | #endif /* CONFIG_HS20 */ | |
1019 | } else if (bss) { | |
1020 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select WPA/RSN"); | |
1021 | return -1; | |
1022 | } else { | |
1023 | if (ssid->proto & WPA_PROTO_OSEN) | |
1024 | proto = WPA_PROTO_OSEN; | |
1025 | else if (ssid->proto & WPA_PROTO_RSN) | |
1026 | proto = WPA_PROTO_RSN; | |
1027 | else | |
1028 | proto = WPA_PROTO_WPA; | |
1029 | if (wpa_supplicant_suites_from_ai(wpa_s, ssid, &ie) < 0) { | |
1030 | os_memset(&ie, 0, sizeof(ie)); | |
1031 | ie.group_cipher = ssid->group_cipher; | |
1032 | ie.pairwise_cipher = ssid->pairwise_cipher; | |
1033 | ie.key_mgmt = ssid->key_mgmt; | |
1034 | #ifdef CONFIG_IEEE80211W | |
1035 | ie.mgmt_group_cipher = | |
1036 | ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION ? | |
1037 | WPA_CIPHER_AES_128_CMAC : 0; | |
1038 | #endif /* CONFIG_IEEE80211W */ | |
1039 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Set cipher suites " | |
1040 | "based on configuration"); | |
1041 | } else | |
1042 | proto = ie.proto; | |
1043 | } | |
1044 | ||
1045 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected cipher suites: group %d " | |
1046 | "pairwise %d key_mgmt %d proto %d", | |
1047 | ie.group_cipher, ie.pairwise_cipher, ie.key_mgmt, proto); | |
1048 | #ifdef CONFIG_IEEE80211W | |
1049 | if (ssid->ieee80211w) { | |
1050 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected mgmt group cipher %d", | |
1051 | ie.mgmt_group_cipher); | |
1052 | } | |
1053 | #endif /* CONFIG_IEEE80211W */ | |
1054 | ||
1055 | wpa_s->wpa_proto = proto; | |
1056 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, proto); | |
1057 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, | |
1058 | !!(ssid->proto & (WPA_PROTO_RSN | WPA_PROTO_OSEN))); | |
1059 | ||
1060 | if (bss || !wpa_s->ap_ies_from_associnfo) { | |
1061 | if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, | |
1062 | bss_wpa ? 2 + bss_wpa[1] : 0) || | |
1063 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, | |
1064 | bss_rsn ? 2 + bss_rsn[1] : 0)) | |
1065 | return -1; | |
1066 | } | |
1067 | ||
1068 | sel = ie.group_cipher & ssid->group_cipher; | |
1069 | wpa_s->group_cipher = wpa_pick_group_cipher(sel); | |
1070 | if (wpa_s->group_cipher < 0) { | |
1071 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select group " | |
1072 | "cipher"); | |
1073 | return -1; | |
1074 | } | |
1075 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK %s", | |
1076 | wpa_cipher_txt(wpa_s->group_cipher)); | |
1077 | ||
1078 | sel = ie.pairwise_cipher & ssid->pairwise_cipher; | |
1079 | wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(sel, 1); | |
1080 | if (wpa_s->pairwise_cipher < 0) { | |
1081 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select pairwise " | |
1082 | "cipher"); | |
1083 | return -1; | |
1084 | } | |
1085 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK %s", | |
1086 | wpa_cipher_txt(wpa_s->pairwise_cipher)); | |
1087 | ||
1088 | sel = ie.key_mgmt & ssid->key_mgmt; | |
1089 | #ifdef CONFIG_SAE | |
1090 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SAE)) | |
1091 | sel &= ~(WPA_KEY_MGMT_SAE | WPA_KEY_MGMT_FT_SAE); | |
1092 | #endif /* CONFIG_SAE */ | |
1093 | if (0) { | |
1094 | #ifdef CONFIG_IEEE80211R | |
1095 | } else if (sel & WPA_KEY_MGMT_FT_IEEE8021X) { | |
1096 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_IEEE8021X; | |
1097 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/802.1X"); | |
1098 | } else if (sel & WPA_KEY_MGMT_FT_PSK) { | |
1099 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_PSK; | |
1100 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/PSK"); | |
1101 | #endif /* CONFIG_IEEE80211R */ | |
1102 | #ifdef CONFIG_SAE | |
1103 | } else if (sel & WPA_KEY_MGMT_SAE) { | |
1104 | wpa_s->key_mgmt = WPA_KEY_MGMT_SAE; | |
1105 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using KEY_MGMT SAE"); | |
1106 | } else if (sel & WPA_KEY_MGMT_FT_SAE) { | |
1107 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_SAE; | |
1108 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using KEY_MGMT FT/SAE"); | |
1109 | #endif /* CONFIG_SAE */ | |
1110 | #ifdef CONFIG_IEEE80211W | |
1111 | } else if (sel & WPA_KEY_MGMT_IEEE8021X_SHA256) { | |
1112 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SHA256; | |
1113 | wpa_dbg(wpa_s, MSG_DEBUG, | |
1114 | "WPA: using KEY_MGMT 802.1X with SHA256"); | |
1115 | } else if (sel & WPA_KEY_MGMT_PSK_SHA256) { | |
1116 | wpa_s->key_mgmt = WPA_KEY_MGMT_PSK_SHA256; | |
1117 | wpa_dbg(wpa_s, MSG_DEBUG, | |
1118 | "WPA: using KEY_MGMT PSK with SHA256"); | |
1119 | #endif /* CONFIG_IEEE80211W */ | |
1120 | } else if (sel & WPA_KEY_MGMT_IEEE8021X) { | |
1121 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X; | |
1122 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT 802.1X"); | |
1123 | } else if (sel & WPA_KEY_MGMT_PSK) { | |
1124 | wpa_s->key_mgmt = WPA_KEY_MGMT_PSK; | |
1125 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-PSK"); | |
1126 | } else if (sel & WPA_KEY_MGMT_WPA_NONE) { | |
1127 | wpa_s->key_mgmt = WPA_KEY_MGMT_WPA_NONE; | |
1128 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-NONE"); | |
1129 | #ifdef CONFIG_HS20 | |
1130 | } else if (sel & WPA_KEY_MGMT_OSEN) { | |
1131 | wpa_s->key_mgmt = WPA_KEY_MGMT_OSEN; | |
1132 | wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: using KEY_MGMT OSEN"); | |
1133 | #endif /* CONFIG_HS20 */ | |
1134 | } else { | |
1135 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select " | |
1136 | "authenticated key management type"); | |
1137 | return -1; | |
1138 | } | |
1139 | ||
1140 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); | |
1141 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, | |
1142 | wpa_s->pairwise_cipher); | |
1143 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); | |
1144 | ||
1145 | #ifdef CONFIG_IEEE80211W | |
1146 | sel = ie.mgmt_group_cipher; | |
1147 | if ((ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ? | |
1148 | wpa_s->conf->pmf : ssid->ieee80211w) == NO_MGMT_FRAME_PROTECTION || | |
1149 | !(ie.capabilities & WPA_CAPABILITY_MFPC)) | |
1150 | sel = 0; | |
1151 | if (sel & WPA_CIPHER_AES_128_CMAC) { | |
1152 | wpa_s->mgmt_group_cipher = WPA_CIPHER_AES_128_CMAC; | |
1153 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher " | |
1154 | "AES-128-CMAC"); | |
1155 | } else if (sel & WPA_CIPHER_BIP_GMAC_128) { | |
1156 | wpa_s->mgmt_group_cipher = WPA_CIPHER_BIP_GMAC_128; | |
1157 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher " | |
1158 | "BIP-GMAC-128"); | |
1159 | } else if (sel & WPA_CIPHER_BIP_GMAC_256) { | |
1160 | wpa_s->mgmt_group_cipher = WPA_CIPHER_BIP_GMAC_256; | |
1161 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher " | |
1162 | "BIP-GMAC-256"); | |
1163 | } else if (sel & WPA_CIPHER_BIP_CMAC_256) { | |
1164 | wpa_s->mgmt_group_cipher = WPA_CIPHER_BIP_CMAC_256; | |
1165 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher " | |
1166 | "BIP-CMAC-256"); | |
1167 | } else { | |
1168 | wpa_s->mgmt_group_cipher = 0; | |
1169 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher"); | |
1170 | } | |
1171 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, | |
1172 | wpa_s->mgmt_group_cipher); | |
1173 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MFP, | |
1174 | (ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ? | |
1175 | wpa_s->conf->pmf : ssid->ieee80211w)); | |
1176 | #endif /* CONFIG_IEEE80211W */ | |
1177 | ||
1178 | if (wpa_sm_set_assoc_wpa_ie_default(wpa_s->wpa, wpa_ie, wpa_ie_len)) { | |
1179 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to generate WPA IE"); | |
1180 | return -1; | |
1181 | } | |
1182 | ||
1183 | if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) { | |
1184 | wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN, NULL); | |
1185 | #ifndef CONFIG_NO_PBKDF2 | |
1186 | if (bss && ssid->bssid_set && ssid->ssid_len == 0 && | |
1187 | ssid->passphrase) { | |
1188 | u8 psk[PMK_LEN]; | |
1189 | pbkdf2_sha1(ssid->passphrase, bss->ssid, bss->ssid_len, | |
1190 | 4096, psk, PMK_LEN); | |
1191 | wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)", | |
1192 | psk, PMK_LEN); | |
1193 | wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN, NULL); | |
1194 | } | |
1195 | #endif /* CONFIG_NO_PBKDF2 */ | |
1196 | #ifdef CONFIG_EXT_PASSWORD | |
1197 | if (ssid->ext_psk) { | |
1198 | struct wpabuf *pw = ext_password_get(wpa_s->ext_pw, | |
1199 | ssid->ext_psk); | |
1200 | char pw_str[64 + 1]; | |
1201 | u8 psk[PMK_LEN]; | |
1202 | ||
1203 | if (pw == NULL) { | |
1204 | wpa_msg(wpa_s, MSG_INFO, "EXT PW: No PSK " | |
1205 | "found from external storage"); | |
1206 | return -1; | |
1207 | } | |
1208 | ||
1209 | if (wpabuf_len(pw) < 8 || wpabuf_len(pw) > 64) { | |
1210 | wpa_msg(wpa_s, MSG_INFO, "EXT PW: Unexpected " | |
1211 | "PSK length %d in external storage", | |
1212 | (int) wpabuf_len(pw)); | |
1213 | ext_password_free(pw); | |
1214 | return -1; | |
1215 | } | |
1216 | ||
1217 | os_memcpy(pw_str, wpabuf_head(pw), wpabuf_len(pw)); | |
1218 | pw_str[wpabuf_len(pw)] = '\0'; | |
1219 | ||
1220 | #ifndef CONFIG_NO_PBKDF2 | |
1221 | if (wpabuf_len(pw) >= 8 && wpabuf_len(pw) < 64 && bss) | |
1222 | { | |
1223 | pbkdf2_sha1(pw_str, bss->ssid, bss->ssid_len, | |
1224 | 4096, psk, PMK_LEN); | |
1225 | os_memset(pw_str, 0, sizeof(pw_str)); | |
1226 | wpa_hexdump_key(MSG_MSGDUMP, "PSK (from " | |
1227 | "external passphrase)", | |
1228 | psk, PMK_LEN); | |
1229 | wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN, NULL); | |
1230 | } else | |
1231 | #endif /* CONFIG_NO_PBKDF2 */ | |
1232 | if (wpabuf_len(pw) == 2 * PMK_LEN) { | |
1233 | if (hexstr2bin(pw_str, psk, PMK_LEN) < 0) { | |
1234 | wpa_msg(wpa_s, MSG_INFO, "EXT PW: " | |
1235 | "Invalid PSK hex string"); | |
1236 | os_memset(pw_str, 0, sizeof(pw_str)); | |
1237 | ext_password_free(pw); | |
1238 | return -1; | |
1239 | } | |
1240 | wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN, NULL); | |
1241 | } else { | |
1242 | wpa_msg(wpa_s, MSG_INFO, "EXT PW: No suitable " | |
1243 | "PSK available"); | |
1244 | os_memset(pw_str, 0, sizeof(pw_str)); | |
1245 | ext_password_free(pw); | |
1246 | return -1; | |
1247 | } | |
1248 | ||
1249 | os_memset(pw_str, 0, sizeof(pw_str)); | |
1250 | ext_password_free(pw); | |
1251 | } | |
1252 | #endif /* CONFIG_EXT_PASSWORD */ | |
1253 | } else | |
1254 | wpa_sm_set_pmk_from_pmksa(wpa_s->wpa); | |
1255 | ||
1256 | return 0; | |
1257 | } | |
1258 | ||
1259 | ||
1260 | static void wpas_ext_capab_byte(struct wpa_supplicant *wpa_s, u8 *pos, int idx) | |
1261 | { | |
1262 | *pos = 0x00; | |
1263 | ||
1264 | switch (idx) { | |
1265 | case 0: /* Bits 0-7 */ | |
1266 | break; | |
1267 | case 1: /* Bits 8-15 */ | |
1268 | break; | |
1269 | case 2: /* Bits 16-23 */ | |
1270 | #ifdef CONFIG_WNM | |
1271 | *pos |= 0x02; /* Bit 17 - WNM-Sleep Mode */ | |
1272 | *pos |= 0x08; /* Bit 19 - BSS Transition */ | |
1273 | #endif /* CONFIG_WNM */ | |
1274 | break; | |
1275 | case 3: /* Bits 24-31 */ | |
1276 | #ifdef CONFIG_WNM | |
1277 | *pos |= 0x02; /* Bit 25 - SSID List */ | |
1278 | #endif /* CONFIG_WNM */ | |
1279 | #ifdef CONFIG_INTERWORKING | |
1280 | if (wpa_s->conf->interworking) | |
1281 | *pos |= 0x80; /* Bit 31 - Interworking */ | |
1282 | #endif /* CONFIG_INTERWORKING */ | |
1283 | break; | |
1284 | case 4: /* Bits 32-39 */ | |
1285 | #ifdef CONFIG_INTERWORKING | |
1286 | if (wpa_s->drv_flags / WPA_DRIVER_FLAGS_QOS_MAPPING) | |
1287 | *pos |= 0x01; /* Bit 32 - QoS Map */ | |
1288 | #endif /* CONFIG_INTERWORKING */ | |
1289 | break; | |
1290 | case 5: /* Bits 40-47 */ | |
1291 | #ifdef CONFIG_HS20 | |
1292 | if (wpa_s->conf->hs20) | |
1293 | *pos |= 0x40; /* Bit 46 - WNM-Notification */ | |
1294 | #endif /* CONFIG_HS20 */ | |
1295 | break; | |
1296 | case 6: /* Bits 48-55 */ | |
1297 | break; | |
1298 | } | |
1299 | } | |
1300 | ||
1301 | ||
1302 | int wpas_build_ext_capab(struct wpa_supplicant *wpa_s, u8 *buf, size_t buflen) | |
1303 | { | |
1304 | u8 *pos = buf; | |
1305 | u8 len = 6, i; | |
1306 | ||
1307 | if (len < wpa_s->extended_capa_len) | |
1308 | len = wpa_s->extended_capa_len; | |
1309 | if (buflen < (size_t) len + 2) { | |
1310 | wpa_printf(MSG_INFO, | |
1311 | "Not enough room for building extended capabilities element"); | |
1312 | return -1; | |
1313 | } | |
1314 | ||
1315 | *pos++ = WLAN_EID_EXT_CAPAB; | |
1316 | *pos++ = len; | |
1317 | for (i = 0; i < len; i++, pos++) { | |
1318 | wpas_ext_capab_byte(wpa_s, pos, i); | |
1319 | ||
1320 | if (i < wpa_s->extended_capa_len) { | |
1321 | *pos &= ~wpa_s->extended_capa_mask[i]; | |
1322 | *pos |= wpa_s->extended_capa[i]; | |
1323 | } | |
1324 | } | |
1325 | ||
1326 | while (len > 0 && buf[1 + len] == 0) { | |
1327 | len--; | |
1328 | buf[1] = len; | |
1329 | } | |
1330 | if (len == 0) | |
1331 | return 0; | |
1332 | ||
1333 | return 2 + len; | |
1334 | } | |
1335 | ||
1336 | ||
1337 | static int wpas_valid_bss(struct wpa_supplicant *wpa_s, | |
1338 | struct wpa_bss *test_bss) | |
1339 | { | |
1340 | struct wpa_bss *bss; | |
1341 | ||
1342 | dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { | |
1343 | if (bss == test_bss) | |
1344 | return 1; | |
1345 | } | |
1346 | ||
1347 | return 0; | |
1348 | } | |
1349 | ||
1350 | ||
1351 | static int wpas_valid_ssid(struct wpa_supplicant *wpa_s, | |
1352 | struct wpa_ssid *test_ssid) | |
1353 | { | |
1354 | struct wpa_ssid *ssid; | |
1355 | ||
1356 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { | |
1357 | if (ssid == test_ssid) | |
1358 | return 1; | |
1359 | } | |
1360 | ||
1361 | return 0; | |
1362 | } | |
1363 | ||
1364 | ||
1365 | int wpas_valid_bss_ssid(struct wpa_supplicant *wpa_s, struct wpa_bss *test_bss, | |
1366 | struct wpa_ssid *test_ssid) | |
1367 | { | |
1368 | if (test_bss && !wpas_valid_bss(wpa_s, test_bss)) | |
1369 | return 0; | |
1370 | ||
1371 | return test_ssid == NULL || wpas_valid_ssid(wpa_s, test_ssid); | |
1372 | } | |
1373 | ||
1374 | ||
1375 | void wpas_connect_work_free(struct wpa_connect_work *cwork) | |
1376 | { | |
1377 | if (cwork == NULL) | |
1378 | return; | |
1379 | os_free(cwork); | |
1380 | } | |
1381 | ||
1382 | ||
1383 | void wpas_connect_work_done(struct wpa_supplicant *wpa_s) | |
1384 | { | |
1385 | struct wpa_connect_work *cwork; | |
1386 | struct wpa_radio_work *work = wpa_s->connect_work; | |
1387 | ||
1388 | if (!work) | |
1389 | return; | |
1390 | ||
1391 | wpa_s->connect_work = NULL; | |
1392 | cwork = work->ctx; | |
1393 | work->ctx = NULL; | |
1394 | wpas_connect_work_free(cwork); | |
1395 | radio_work_done(work); | |
1396 | } | |
1397 | ||
1398 | ||
1399 | int wpas_update_random_addr(struct wpa_supplicant *wpa_s, int style) | |
1400 | { | |
1401 | struct os_reltime now; | |
1402 | u8 addr[ETH_ALEN]; | |
1403 | ||
1404 | os_get_reltime(&now); | |
1405 | if (wpa_s->last_mac_addr_style == style && | |
1406 | wpa_s->last_mac_addr_change.sec != 0 && | |
1407 | !os_reltime_expired(&now, &wpa_s->last_mac_addr_change, | |
1408 | wpa_s->conf->rand_addr_lifetime)) { | |
1409 | wpa_msg(wpa_s, MSG_DEBUG, | |
1410 | "Previously selected random MAC address has not yet expired"); | |
1411 | return 0; | |
1412 | } | |
1413 | ||
1414 | switch (style) { | |
1415 | case 1: | |
1416 | if (random_mac_addr(addr) < 0) | |
1417 | return -1; | |
1418 | break; | |
1419 | case 2: | |
1420 | os_memcpy(addr, wpa_s->perm_addr, ETH_ALEN); | |
1421 | if (random_mac_addr_keep_oui(addr) < 0) | |
1422 | return -1; | |
1423 | break; | |
1424 | default: | |
1425 | return -1; | |
1426 | } | |
1427 | ||
1428 | if (wpa_drv_set_mac_addr(wpa_s, addr) < 0) { | |
1429 | wpa_msg(wpa_s, MSG_INFO, | |
1430 | "Failed to set random MAC address"); | |
1431 | return -1; | |
1432 | } | |
1433 | ||
1434 | os_get_reltime(&wpa_s->last_mac_addr_change); | |
1435 | wpa_s->mac_addr_changed = 1; | |
1436 | wpa_s->last_mac_addr_style = style; | |
1437 | ||
1438 | if (wpa_supplicant_update_mac_addr(wpa_s) < 0) { | |
1439 | wpa_msg(wpa_s, MSG_INFO, | |
1440 | "Could not update MAC address information"); | |
1441 | return -1; | |
1442 | } | |
1443 | ||
1444 | wpa_msg(wpa_s, MSG_DEBUG, "Using random MAC address " MACSTR, | |
1445 | MAC2STR(addr)); | |
1446 | ||
1447 | return 0; | |
1448 | } | |
1449 | ||
1450 | ||
1451 | int wpas_update_random_addr_disassoc(struct wpa_supplicant *wpa_s) | |
1452 | { | |
1453 | if (wpa_s->wpa_state >= WPA_AUTHENTICATING || | |
1454 | !wpa_s->conf->preassoc_mac_addr) | |
1455 | return 0; | |
1456 | ||
1457 | return wpas_update_random_addr(wpa_s, wpa_s->conf->preassoc_mac_addr); | |
1458 | } | |
1459 | ||
1460 | ||
1461 | static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit); | |
1462 | ||
1463 | /** | |
1464 | * wpa_supplicant_associate - Request association | |
1465 | * @wpa_s: Pointer to wpa_supplicant data | |
1466 | * @bss: Scan results for the selected BSS, or %NULL if not available | |
1467 | * @ssid: Configuration data for the selected network | |
1468 | * | |
1469 | * This function is used to request %wpa_supplicant to associate with a BSS. | |
1470 | */ | |
1471 | void wpa_supplicant_associate(struct wpa_supplicant *wpa_s, | |
1472 | struct wpa_bss *bss, struct wpa_ssid *ssid) | |
1473 | { | |
1474 | struct wpa_connect_work *cwork; | |
1475 | int rand_style; | |
1476 | ||
1477 | if (ssid->mac_addr == -1) | |
1478 | rand_style = wpa_s->conf->mac_addr; | |
1479 | else | |
1480 | rand_style = ssid->mac_addr; | |
1481 | ||
1482 | if (wpa_s->last_ssid == ssid) { | |
1483 | wpa_dbg(wpa_s, MSG_DEBUG, "Re-association to the same ESS"); | |
1484 | } else if (rand_style > 0) { | |
1485 | if (wpas_update_random_addr(wpa_s, rand_style) < 0) | |
1486 | return; | |
1487 | wpa_sm_pmksa_cache_flush(wpa_s->wpa, ssid); | |
1488 | } else if (wpa_s->mac_addr_changed) { | |
1489 | if (wpa_drv_set_mac_addr(wpa_s, NULL) < 0) { | |
1490 | wpa_msg(wpa_s, MSG_INFO, | |
1491 | "Could not restore permanent MAC address"); | |
1492 | return; | |
1493 | } | |
1494 | wpa_s->mac_addr_changed = 0; | |
1495 | if (wpa_supplicant_update_mac_addr(wpa_s) < 0) { | |
1496 | wpa_msg(wpa_s, MSG_INFO, | |
1497 | "Could not update MAC address information"); | |
1498 | return; | |
1499 | } | |
1500 | wpa_msg(wpa_s, MSG_DEBUG, "Using permanent MAC address"); | |
1501 | } | |
1502 | wpa_s->last_ssid = ssid; | |
1503 | ||
1504 | #ifdef CONFIG_IBSS_RSN | |
1505 | ibss_rsn_deinit(wpa_s->ibss_rsn); | |
1506 | wpa_s->ibss_rsn = NULL; | |
1507 | #endif /* CONFIG_IBSS_RSN */ | |
1508 | ||
1509 | if (ssid->mode == WPAS_MODE_AP || ssid->mode == WPAS_MODE_P2P_GO || | |
1510 | ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) { | |
1511 | #ifdef CONFIG_AP | |
1512 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP)) { | |
1513 | wpa_msg(wpa_s, MSG_INFO, "Driver does not support AP " | |
1514 | "mode"); | |
1515 | return; | |
1516 | } | |
1517 | if (wpa_supplicant_create_ap(wpa_s, ssid) < 0) { | |
1518 | wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); | |
1519 | if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) | |
1520 | wpas_p2p_ap_setup_failed(wpa_s); | |
1521 | return; | |
1522 | } | |
1523 | wpa_s->current_bss = bss; | |
1524 | #else /* CONFIG_AP */ | |
1525 | wpa_msg(wpa_s, MSG_ERROR, "AP mode support not included in " | |
1526 | "the build"); | |
1527 | #endif /* CONFIG_AP */ | |
1528 | return; | |
1529 | } | |
1530 | ||
1531 | #ifdef CONFIG_TDLS | |
1532 | if (bss) | |
1533 | wpa_tdls_ap_ies(wpa_s->wpa, (const u8 *) (bss + 1), | |
1534 | bss->ie_len); | |
1535 | #endif /* CONFIG_TDLS */ | |
1536 | ||
1537 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && | |
1538 | ssid->mode == IEEE80211_MODE_INFRA) { | |
1539 | sme_authenticate(wpa_s, bss, ssid); | |
1540 | return; | |
1541 | } | |
1542 | ||
1543 | if (wpa_s->connect_work) { | |
1544 | wpa_dbg(wpa_s, MSG_DEBUG, "Reject wpa_supplicant_associate() call since connect_work exist"); | |
1545 | return; | |
1546 | } | |
1547 | ||
1548 | if (radio_work_pending(wpa_s, "connect")) { | |
1549 | wpa_dbg(wpa_s, MSG_DEBUG, "Reject wpa_supplicant_associate() call since pending work exist"); | |
1550 | return; | |
1551 | } | |
1552 | ||
1553 | cwork = os_zalloc(sizeof(*cwork)); | |
1554 | if (cwork == NULL) | |
1555 | return; | |
1556 | ||
1557 | cwork->bss = bss; | |
1558 | cwork->ssid = ssid; | |
1559 | ||
1560 | if (radio_add_work(wpa_s, bss ? bss->freq : 0, "connect", 1, | |
1561 | wpas_start_assoc_cb, cwork) < 0) { | |
1562 | os_free(cwork); | |
1563 | } | |
1564 | } | |
1565 | ||
1566 | ||
1567 | static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit) | |
1568 | { | |
1569 | struct wpa_connect_work *cwork = work->ctx; | |
1570 | struct wpa_bss *bss = cwork->bss; | |
1571 | struct wpa_ssid *ssid = cwork->ssid; | |
1572 | struct wpa_supplicant *wpa_s = work->wpa_s; | |
1573 | u8 wpa_ie[200]; | |
1574 | size_t wpa_ie_len; | |
1575 | int use_crypt, ret, i, bssid_changed; | |
1576 | int algs = WPA_AUTH_ALG_OPEN; | |
1577 | unsigned int cipher_pairwise, cipher_group; | |
1578 | struct wpa_driver_associate_params params; | |
1579 | int wep_keys_set = 0; | |
1580 | int assoc_failed = 0; | |
1581 | struct wpa_ssid *old_ssid; | |
1582 | #ifdef CONFIG_HT_OVERRIDES | |
1583 | struct ieee80211_ht_capabilities htcaps; | |
1584 | struct ieee80211_ht_capabilities htcaps_mask; | |
1585 | #endif /* CONFIG_HT_OVERRIDES */ | |
1586 | #ifdef CONFIG_VHT_OVERRIDES | |
1587 | struct ieee80211_vht_capabilities vhtcaps; | |
1588 | struct ieee80211_vht_capabilities vhtcaps_mask; | |
1589 | #endif /* CONFIG_VHT_OVERRIDES */ | |
1590 | ||
1591 | if (deinit) { | |
1592 | if (work->started) { | |
1593 | wpa_s->connect_work = NULL; | |
1594 | ||
1595 | /* cancel possible auth. timeout */ | |
1596 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, | |
1597 | NULL); | |
1598 | } | |
1599 | wpas_connect_work_free(cwork); | |
1600 | return; | |
1601 | } | |
1602 | ||
1603 | wpa_s->connect_work = work; | |
1604 | ||
1605 | if (!wpas_valid_bss_ssid(wpa_s, bss, ssid)) { | |
1606 | wpa_dbg(wpa_s, MSG_DEBUG, "BSS/SSID entry for association not valid anymore - drop connection attempt"); | |
1607 | wpas_connect_work_done(wpa_s); | |
1608 | return; | |
1609 | } | |
1610 | ||
1611 | os_memset(¶ms, 0, sizeof(params)); | |
1612 | wpa_s->reassociate = 0; | |
1613 | wpa_s->eap_expected_failure = 0; | |
1614 | if (bss && !wpas_driver_bss_selection(wpa_s)) { | |
1615 | #ifdef CONFIG_IEEE80211R | |
1616 | const u8 *ie, *md = NULL; | |
1617 | #endif /* CONFIG_IEEE80211R */ | |
1618 | wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR | |
1619 | " (SSID='%s' freq=%d MHz)", MAC2STR(bss->bssid), | |
1620 | wpa_ssid_txt(bss->ssid, bss->ssid_len), bss->freq); | |
1621 | bssid_changed = !is_zero_ether_addr(wpa_s->bssid); | |
1622 | os_memset(wpa_s->bssid, 0, ETH_ALEN); | |
1623 | os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN); | |
1624 | if (bssid_changed) | |
1625 | wpas_notify_bssid_changed(wpa_s); | |
1626 | #ifdef CONFIG_IEEE80211R | |
1627 | ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN); | |
1628 | if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN) | |
1629 | md = ie + 2; | |
1630 | wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0); | |
1631 | if (md) { | |
1632 | /* Prepare for the next transition */ | |
1633 | wpa_ft_prepare_auth_request(wpa_s->wpa, ie); | |
1634 | } | |
1635 | #endif /* CONFIG_IEEE80211R */ | |
1636 | #ifdef CONFIG_WPS | |
1637 | } else if ((ssid->ssid == NULL || ssid->ssid_len == 0) && | |
1638 | wpa_s->conf->ap_scan == 2 && | |
1639 | (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { | |
1640 | /* Use ap_scan==1 style network selection to find the network | |
1641 | */ | |
1642 | wpa_s->scan_req = MANUAL_SCAN_REQ; | |
1643 | wpa_s->reassociate = 1; | |
1644 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1645 | return; | |
1646 | #endif /* CONFIG_WPS */ | |
1647 | } else { | |
1648 | wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'", | |
1649 | wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); | |
1650 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); | |
1651 | } | |
1652 | wpa_supplicant_cancel_sched_scan(wpa_s); | |
1653 | wpa_supplicant_cancel_scan(wpa_s); | |
1654 | ||
1655 | /* Starting new association, so clear the possibly used WPA IE from the | |
1656 | * previous association. */ | |
1657 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); | |
1658 | ||
1659 | #ifdef IEEE8021X_EAPOL | |
1660 | if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1661 | if (ssid->leap) { | |
1662 | if (ssid->non_leap == 0) | |
1663 | algs = WPA_AUTH_ALG_LEAP; | |
1664 | else | |
1665 | algs |= WPA_AUTH_ALG_LEAP; | |
1666 | } | |
1667 | } | |
1668 | #endif /* IEEE8021X_EAPOL */ | |
1669 | wpa_dbg(wpa_s, MSG_DEBUG, "Automatic auth_alg selection: 0x%x", algs); | |
1670 | if (ssid->auth_alg) { | |
1671 | algs = ssid->auth_alg; | |
1672 | wpa_dbg(wpa_s, MSG_DEBUG, "Overriding auth_alg selection: " | |
1673 | "0x%x", algs); | |
1674 | } | |
1675 | ||
1676 | if (bss && (wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) || | |
1677 | wpa_bss_get_ie(bss, WLAN_EID_RSN)) && | |
1678 | wpa_key_mgmt_wpa(ssid->key_mgmt)) { | |
1679 | int try_opportunistic; | |
1680 | try_opportunistic = (ssid->proactive_key_caching < 0 ? | |
1681 | wpa_s->conf->okc : | |
1682 | ssid->proactive_key_caching) && | |
1683 | (ssid->proto & WPA_PROTO_RSN); | |
1684 | if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid, | |
1685 | ssid, try_opportunistic) == 0) | |
1686 | eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1); | |
1687 | wpa_ie_len = sizeof(wpa_ie); | |
1688 | if (wpa_supplicant_set_suites(wpa_s, bss, ssid, | |
1689 | wpa_ie, &wpa_ie_len)) { | |
1690 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA " | |
1691 | "key management and encryption suites"); | |
1692 | return; | |
1693 | } | |
1694 | } else if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && bss && | |
1695 | wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt)) { | |
1696 | /* | |
1697 | * Both WPA and non-WPA IEEE 802.1X enabled in configuration - | |
1698 | * use non-WPA since the scan results did not indicate that the | |
1699 | * AP is using WPA or WPA2. | |
1700 | */ | |
1701 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
1702 | wpa_ie_len = 0; | |
1703 | wpa_s->wpa_proto = 0; | |
1704 | } else if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) { | |
1705 | wpa_ie_len = sizeof(wpa_ie); | |
1706 | if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, | |
1707 | wpa_ie, &wpa_ie_len)) { | |
1708 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA " | |
1709 | "key management and encryption suites (no " | |
1710 | "scan results)"); | |
1711 | return; | |
1712 | } | |
1713 | #ifdef CONFIG_WPS | |
1714 | } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) { | |
1715 | struct wpabuf *wps_ie; | |
1716 | wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid)); | |
1717 | if (wps_ie && wpabuf_len(wps_ie) <= sizeof(wpa_ie)) { | |
1718 | wpa_ie_len = wpabuf_len(wps_ie); | |
1719 | os_memcpy(wpa_ie, wpabuf_head(wps_ie), wpa_ie_len); | |
1720 | } else | |
1721 | wpa_ie_len = 0; | |
1722 | wpabuf_free(wps_ie); | |
1723 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
1724 | if (!bss || (bss->caps & IEEE80211_CAP_PRIVACY)) | |
1725 | params.wps = WPS_MODE_PRIVACY; | |
1726 | else | |
1727 | params.wps = WPS_MODE_OPEN; | |
1728 | wpa_s->wpa_proto = 0; | |
1729 | #endif /* CONFIG_WPS */ | |
1730 | } else { | |
1731 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
1732 | wpa_ie_len = 0; | |
1733 | wpa_s->wpa_proto = 0; | |
1734 | } | |
1735 | ||
1736 | #ifdef CONFIG_P2P | |
1737 | if (wpa_s->global->p2p) { | |
1738 | u8 *pos; | |
1739 | size_t len; | |
1740 | int res; | |
1741 | pos = wpa_ie + wpa_ie_len; | |
1742 | len = sizeof(wpa_ie) - wpa_ie_len; | |
1743 | res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len, | |
1744 | ssid->p2p_group); | |
1745 | if (res >= 0) | |
1746 | wpa_ie_len += res; | |
1747 | } | |
1748 | ||
1749 | wpa_s->cross_connect_disallowed = 0; | |
1750 | if (bss) { | |
1751 | struct wpabuf *p2p; | |
1752 | p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE); | |
1753 | if (p2p) { | |
1754 | wpa_s->cross_connect_disallowed = | |
1755 | p2p_get_cross_connect_disallowed(p2p); | |
1756 | wpabuf_free(p2p); | |
1757 | wpa_dbg(wpa_s, MSG_DEBUG, "P2P: WLAN AP %s cross " | |
1758 | "connection", | |
1759 | wpa_s->cross_connect_disallowed ? | |
1760 | "disallows" : "allows"); | |
1761 | } | |
1762 | } | |
1763 | ||
1764 | os_memset(wpa_s->p2p_ip_addr_info, 0, sizeof(wpa_s->p2p_ip_addr_info)); | |
1765 | #endif /* CONFIG_P2P */ | |
1766 | ||
1767 | #ifdef CONFIG_HS20 | |
1768 | if (is_hs20_network(wpa_s, ssid, bss)) { | |
1769 | struct wpabuf *hs20; | |
1770 | hs20 = wpabuf_alloc(20); | |
1771 | if (hs20) { | |
1772 | int pps_mo_id = hs20_get_pps_mo_id(wpa_s, ssid); | |
1773 | size_t len; | |
1774 | ||
1775 | wpas_hs20_add_indication(hs20, pps_mo_id); | |
1776 | len = sizeof(wpa_ie) - wpa_ie_len; | |
1777 | if (wpabuf_len(hs20) <= len) { | |
1778 | os_memcpy(wpa_ie + wpa_ie_len, | |
1779 | wpabuf_head(hs20), wpabuf_len(hs20)); | |
1780 | wpa_ie_len += wpabuf_len(hs20); | |
1781 | } | |
1782 | wpabuf_free(hs20); | |
1783 | } | |
1784 | } | |
1785 | #endif /* CONFIG_HS20 */ | |
1786 | ||
1787 | /* | |
1788 | * Workaround: Add Extended Capabilities element only if the AP | |
1789 | * included this element in Beacon/Probe Response frames. Some older | |
1790 | * APs seem to have interoperability issues if this element is | |
1791 | * included, so while the standard may require us to include the | |
1792 | * element in all cases, it is justifiable to skip it to avoid | |
1793 | * interoperability issues. | |
1794 | */ | |
1795 | if (!bss || wpa_bss_get_ie(bss, WLAN_EID_EXT_CAPAB)) { | |
1796 | u8 ext_capab[18]; | |
1797 | int ext_capab_len; | |
1798 | ext_capab_len = wpas_build_ext_capab(wpa_s, ext_capab, | |
1799 | sizeof(ext_capab)); | |
1800 | if (ext_capab_len > 0) { | |
1801 | u8 *pos = wpa_ie; | |
1802 | if (wpa_ie_len > 0 && pos[0] == WLAN_EID_RSN) | |
1803 | pos += 2 + pos[1]; | |
1804 | os_memmove(pos + ext_capab_len, pos, | |
1805 | wpa_ie_len - (pos - wpa_ie)); | |
1806 | wpa_ie_len += ext_capab_len; | |
1807 | os_memcpy(pos, ext_capab, ext_capab_len); | |
1808 | } | |
1809 | } | |
1810 | ||
1811 | wpa_clear_keys(wpa_s, bss ? bss->bssid : NULL); | |
1812 | use_crypt = 1; | |
1813 | cipher_pairwise = wpa_s->pairwise_cipher; | |
1814 | cipher_group = wpa_s->group_cipher; | |
1815 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || | |
1816 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1817 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) | |
1818 | use_crypt = 0; | |
1819 | if (wpa_set_wep_keys(wpa_s, ssid)) { | |
1820 | use_crypt = 1; | |
1821 | wep_keys_set = 1; | |
1822 | } | |
1823 | } | |
1824 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) | |
1825 | use_crypt = 0; | |
1826 | ||
1827 | #ifdef IEEE8021X_EAPOL | |
1828 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1829 | if ((ssid->eapol_flags & | |
1830 | (EAPOL_FLAG_REQUIRE_KEY_UNICAST | | |
1831 | EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) == 0 && | |
1832 | !wep_keys_set) { | |
1833 | use_crypt = 0; | |
1834 | } else { | |
1835 | /* Assume that dynamic WEP-104 keys will be used and | |
1836 | * set cipher suites in order for drivers to expect | |
1837 | * encryption. */ | |
1838 | cipher_pairwise = cipher_group = WPA_CIPHER_WEP104; | |
1839 | } | |
1840 | } | |
1841 | #endif /* IEEE8021X_EAPOL */ | |
1842 | ||
1843 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
1844 | /* Set the key before (and later after) association */ | |
1845 | wpa_supplicant_set_wpa_none_key(wpa_s, ssid); | |
1846 | } | |
1847 | ||
1848 | wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING); | |
1849 | if (bss) { | |
1850 | params.ssid = bss->ssid; | |
1851 | params.ssid_len = bss->ssid_len; | |
1852 | if (!wpas_driver_bss_selection(wpa_s) || ssid->bssid_set) { | |
1853 | wpa_printf(MSG_DEBUG, "Limit connection to BSSID " | |
1854 | MACSTR " freq=%u MHz based on scan results " | |
1855 | "(bssid_set=%d)", | |
1856 | MAC2STR(bss->bssid), bss->freq, | |
1857 | ssid->bssid_set); | |
1858 | params.bssid = bss->bssid; | |
1859 | params.freq.freq = bss->freq; | |
1860 | } | |
1861 | params.bssid_hint = bss->bssid; | |
1862 | params.freq_hint = bss->freq; | |
1863 | } else { | |
1864 | params.ssid = ssid->ssid; | |
1865 | params.ssid_len = ssid->ssid_len; | |
1866 | } | |
1867 | ||
1868 | if (ssid->mode == WPAS_MODE_IBSS && ssid->bssid_set && | |
1869 | wpa_s->conf->ap_scan == 2) { | |
1870 | params.bssid = ssid->bssid; | |
1871 | params.fixed_bssid = 1; | |
1872 | } | |
1873 | ||
1874 | if (ssid->mode == WPAS_MODE_IBSS && ssid->frequency > 0 && | |
1875 | params.freq.freq == 0) { | |
1876 | enum hostapd_hw_mode hw_mode; | |
1877 | u8 channel; | |
1878 | ||
1879 | params.freq.freq = ssid->frequency; | |
1880 | ||
1881 | hw_mode = ieee80211_freq_to_chan(ssid->frequency, &channel); | |
1882 | for (i = 0; wpa_s->hw.modes && i < wpa_s->hw.num_modes; i++) { | |
1883 | if (wpa_s->hw.modes[i].mode == hw_mode) { | |
1884 | struct hostapd_hw_modes *mode; | |
1885 | ||
1886 | mode = &wpa_s->hw.modes[i]; | |
1887 | params.freq.ht_enabled = ht_supported(mode); | |
1888 | break; | |
1889 | } | |
1890 | } | |
1891 | } | |
1892 | ||
1893 | if (ssid->mode == WPAS_MODE_IBSS) { | |
1894 | if (ssid->beacon_int) | |
1895 | params.beacon_int = ssid->beacon_int; | |
1896 | else | |
1897 | params.beacon_int = wpa_s->conf->beacon_int; | |
1898 | } | |
1899 | ||
1900 | params.wpa_ie = wpa_ie; | |
1901 | params.wpa_ie_len = wpa_ie_len; | |
1902 | params.pairwise_suite = cipher_pairwise; | |
1903 | params.group_suite = cipher_group; | |
1904 | params.key_mgmt_suite = wpa_s->key_mgmt; | |
1905 | params.wpa_proto = wpa_s->wpa_proto; | |
1906 | params.auth_alg = algs; | |
1907 | params.mode = ssid->mode; | |
1908 | params.bg_scan_period = ssid->bg_scan_period; | |
1909 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
1910 | if (ssid->wep_key_len[i]) | |
1911 | params.wep_key[i] = ssid->wep_key[i]; | |
1912 | params.wep_key_len[i] = ssid->wep_key_len[i]; | |
1913 | } | |
1914 | params.wep_tx_keyidx = ssid->wep_tx_keyidx; | |
1915 | ||
1916 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && | |
1917 | (params.key_mgmt_suite == WPA_KEY_MGMT_PSK || | |
1918 | params.key_mgmt_suite == WPA_KEY_MGMT_FT_PSK)) { | |
1919 | params.passphrase = ssid->passphrase; | |
1920 | if (ssid->psk_set) | |
1921 | params.psk = ssid->psk; | |
1922 | } | |
1923 | ||
1924 | params.drop_unencrypted = use_crypt; | |
1925 | ||
1926 | #ifdef CONFIG_IEEE80211W | |
1927 | params.mgmt_frame_protection = | |
1928 | ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ? | |
1929 | wpa_s->conf->pmf : ssid->ieee80211w; | |
1930 | if (params.mgmt_frame_protection != NO_MGMT_FRAME_PROTECTION && bss) { | |
1931 | const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); | |
1932 | struct wpa_ie_data ie; | |
1933 | if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ie) == 0 && | |
1934 | ie.capabilities & | |
1935 | (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) { | |
1936 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected AP supports " | |
1937 | "MFP: require MFP"); | |
1938 | params.mgmt_frame_protection = | |
1939 | MGMT_FRAME_PROTECTION_REQUIRED; | |
1940 | } | |
1941 | } | |
1942 | #endif /* CONFIG_IEEE80211W */ | |
1943 | ||
1944 | params.p2p = ssid->p2p_group; | |
1945 | ||
1946 | if (wpa_s->parent->set_sta_uapsd) | |
1947 | params.uapsd = wpa_s->parent->sta_uapsd; | |
1948 | else | |
1949 | params.uapsd = -1; | |
1950 | ||
1951 | #ifdef CONFIG_HT_OVERRIDES | |
1952 | os_memset(&htcaps, 0, sizeof(htcaps)); | |
1953 | os_memset(&htcaps_mask, 0, sizeof(htcaps_mask)); | |
1954 | params.htcaps = (u8 *) &htcaps; | |
1955 | params.htcaps_mask = (u8 *) &htcaps_mask; | |
1956 | wpa_supplicant_apply_ht_overrides(wpa_s, ssid, ¶ms); | |
1957 | #endif /* CONFIG_HT_OVERRIDES */ | |
1958 | #ifdef CONFIG_VHT_OVERRIDES | |
1959 | os_memset(&vhtcaps, 0, sizeof(vhtcaps)); | |
1960 | os_memset(&vhtcaps_mask, 0, sizeof(vhtcaps_mask)); | |
1961 | params.vhtcaps = &vhtcaps; | |
1962 | params.vhtcaps_mask = &vhtcaps_mask; | |
1963 | wpa_supplicant_apply_vht_overrides(wpa_s, wpa_s->current_ssid, ¶ms); | |
1964 | #endif /* CONFIG_VHT_OVERRIDES */ | |
1965 | ||
1966 | #ifdef CONFIG_P2P | |
1967 | /* | |
1968 | * If multi-channel concurrency is not supported, check for any | |
1969 | * frequency conflict. In case of any frequency conflict, remove the | |
1970 | * least prioritized connection. | |
1971 | */ | |
1972 | if (wpa_s->num_multichan_concurrent < 2) { | |
1973 | int freq, num; | |
1974 | num = get_shared_radio_freqs(wpa_s, &freq, 1); | |
1975 | if (num > 0 && freq > 0 && freq != params.freq.freq) { | |
1976 | wpa_printf(MSG_DEBUG, | |
1977 | "Assoc conflicting freq found (%d != %d)", | |
1978 | freq, params.freq.freq); | |
1979 | if (wpas_p2p_handle_frequency_conflicts( | |
1980 | wpa_s, params.freq.freq, ssid) < 0) | |
1981 | return; | |
1982 | } | |
1983 | } | |
1984 | #endif /* CONFIG_P2P */ | |
1985 | ||
1986 | ret = wpa_drv_associate(wpa_s, ¶ms); | |
1987 | if (ret < 0) { | |
1988 | wpa_msg(wpa_s, MSG_INFO, "Association request to the driver " | |
1989 | "failed"); | |
1990 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SANE_ERROR_CODES) { | |
1991 | /* | |
1992 | * The driver is known to mean what is saying, so we | |
1993 | * can stop right here; the association will not | |
1994 | * succeed. | |
1995 | */ | |
1996 | wpas_connection_failed(wpa_s, wpa_s->pending_bssid); | |
1997 | wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); | |
1998 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); | |
1999 | return; | |
2000 | } | |
2001 | /* try to continue anyway; new association will be tried again | |
2002 | * after timeout */ | |
2003 | assoc_failed = 1; | |
2004 | } | |
2005 | ||
2006 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
2007 | /* Set the key after the association just in case association | |
2008 | * cleared the previously configured key. */ | |
2009 | wpa_supplicant_set_wpa_none_key(wpa_s, ssid); | |
2010 | /* No need to timeout authentication since there is no key | |
2011 | * management. */ | |
2012 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
2013 | wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); | |
2014 | #ifdef CONFIG_IBSS_RSN | |
2015 | } else if (ssid->mode == WPAS_MODE_IBSS && | |
2016 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && | |
2017 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { | |
2018 | /* | |
2019 | * RSN IBSS authentication is per-STA and we can disable the | |
2020 | * per-BSSID authentication. | |
2021 | */ | |
2022 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
2023 | #endif /* CONFIG_IBSS_RSN */ | |
2024 | } else { | |
2025 | /* Timeout for IEEE 802.11 authentication and association */ | |
2026 | int timeout = 60; | |
2027 | ||
2028 | if (assoc_failed) { | |
2029 | /* give IBSS a bit more time */ | |
2030 | timeout = ssid->mode == WPAS_MODE_IBSS ? 10 : 5; | |
2031 | } else if (wpa_s->conf->ap_scan == 1) { | |
2032 | /* give IBSS a bit more time */ | |
2033 | timeout = ssid->mode == WPAS_MODE_IBSS ? 20 : 10; | |
2034 | } | |
2035 | wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0); | |
2036 | } | |
2037 | ||
2038 | if (wep_keys_set && | |
2039 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC)) { | |
2040 | /* Set static WEP keys again */ | |
2041 | wpa_set_wep_keys(wpa_s, ssid); | |
2042 | } | |
2043 | ||
2044 | if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) { | |
2045 | /* | |
2046 | * Do not allow EAP session resumption between different | |
2047 | * network configurations. | |
2048 | */ | |
2049 | eapol_sm_invalidate_cached_session(wpa_s->eapol); | |
2050 | } | |
2051 | old_ssid = wpa_s->current_ssid; | |
2052 | wpa_s->current_ssid = ssid; | |
2053 | wpa_s->current_bss = bss; | |
2054 | wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); | |
2055 | wpa_supplicant_initiate_eapol(wpa_s); | |
2056 | if (old_ssid != wpa_s->current_ssid) | |
2057 | wpas_notify_network_changed(wpa_s); | |
2058 | } | |
2059 | ||
2060 | ||
2061 | static void wpa_supplicant_clear_connection(struct wpa_supplicant *wpa_s, | |
2062 | const u8 *addr) | |
2063 | { | |
2064 | struct wpa_ssid *old_ssid; | |
2065 | ||
2066 | wpas_connect_work_done(wpa_s); | |
2067 | wpa_clear_keys(wpa_s, addr); | |
2068 | old_ssid = wpa_s->current_ssid; | |
2069 | wpa_supplicant_mark_disassoc(wpa_s); | |
2070 | wpa_sm_set_config(wpa_s->wpa, NULL); | |
2071 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
2072 | if (old_ssid != wpa_s->current_ssid) | |
2073 | wpas_notify_network_changed(wpa_s); | |
2074 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
2075 | } | |
2076 | ||
2077 | ||
2078 | /** | |
2079 | * wpa_supplicant_deauthenticate - Deauthenticate the current connection | |
2080 | * @wpa_s: Pointer to wpa_supplicant data | |
2081 | * @reason_code: IEEE 802.11 reason code for the deauthenticate frame | |
2082 | * | |
2083 | * This function is used to request %wpa_supplicant to deauthenticate from the | |
2084 | * current AP. | |
2085 | */ | |
2086 | void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s, | |
2087 | int reason_code) | |
2088 | { | |
2089 | u8 *addr = NULL; | |
2090 | union wpa_event_data event; | |
2091 | int zero_addr = 0; | |
2092 | ||
2093 | wpa_dbg(wpa_s, MSG_DEBUG, "Request to deauthenticate - bssid=" MACSTR | |
2094 | " pending_bssid=" MACSTR " reason=%d state=%s", | |
2095 | MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid), | |
2096 | reason_code, wpa_supplicant_state_txt(wpa_s->wpa_state)); | |
2097 | ||
2098 | if (!is_zero_ether_addr(wpa_s->bssid)) | |
2099 | addr = wpa_s->bssid; | |
2100 | else if (!is_zero_ether_addr(wpa_s->pending_bssid) && | |
2101 | (wpa_s->wpa_state == WPA_AUTHENTICATING || | |
2102 | wpa_s->wpa_state == WPA_ASSOCIATING)) | |
2103 | addr = wpa_s->pending_bssid; | |
2104 | else if (wpa_s->wpa_state == WPA_ASSOCIATING) { | |
2105 | /* | |
2106 | * When using driver-based BSS selection, we may not know the | |
2107 | * BSSID with which we are currently trying to associate. We | |
2108 | * need to notify the driver of this disconnection even in such | |
2109 | * a case, so use the all zeros address here. | |
2110 | */ | |
2111 | addr = wpa_s->bssid; | |
2112 | zero_addr = 1; | |
2113 | } | |
2114 | ||
2115 | #ifdef CONFIG_TDLS | |
2116 | wpa_tdls_teardown_peers(wpa_s->wpa); | |
2117 | #endif /* CONFIG_TDLS */ | |
2118 | ||
2119 | if (addr) { | |
2120 | wpa_drv_deauthenticate(wpa_s, addr, reason_code); | |
2121 | os_memset(&event, 0, sizeof(event)); | |
2122 | event.deauth_info.reason_code = (u16) reason_code; | |
2123 | event.deauth_info.locally_generated = 1; | |
2124 | wpa_supplicant_event(wpa_s, EVENT_DEAUTH, &event); | |
2125 | if (zero_addr) | |
2126 | addr = NULL; | |
2127 | } | |
2128 | ||
2129 | wpa_supplicant_clear_connection(wpa_s, addr); | |
2130 | } | |
2131 | ||
2132 | static void wpa_supplicant_enable_one_network(struct wpa_supplicant *wpa_s, | |
2133 | struct wpa_ssid *ssid) | |
2134 | { | |
2135 | if (!ssid || !ssid->disabled || ssid->disabled == 2) | |
2136 | return; | |
2137 | ||
2138 | ssid->disabled = 0; | |
2139 | wpas_clear_temp_disabled(wpa_s, ssid, 1); | |
2140 | wpas_notify_network_enabled_changed(wpa_s, ssid); | |
2141 | ||
2142 | /* | |
2143 | * Try to reassociate since there is no current configuration and a new | |
2144 | * network was made available. | |
2145 | */ | |
2146 | if (!wpa_s->current_ssid && !wpa_s->disconnected) | |
2147 | wpa_s->reassociate = 1; | |
2148 | } | |
2149 | ||
2150 | ||
2151 | /** | |
2152 | * wpa_supplicant_enable_network - Mark a configured network as enabled | |
2153 | * @wpa_s: wpa_supplicant structure for a network interface | |
2154 | * @ssid: wpa_ssid structure for a configured network or %NULL | |
2155 | * | |
2156 | * Enables the specified network or all networks if no network specified. | |
2157 | */ | |
2158 | void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s, | |
2159 | struct wpa_ssid *ssid) | |
2160 | { | |
2161 | if (ssid == NULL) { | |
2162 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) | |
2163 | wpa_supplicant_enable_one_network(wpa_s, ssid); | |
2164 | } else | |
2165 | wpa_supplicant_enable_one_network(wpa_s, ssid); | |
2166 | ||
2167 | if (wpa_s->reassociate && !wpa_s->disconnected) { | |
2168 | if (wpa_s->sched_scanning) { | |
2169 | wpa_printf(MSG_DEBUG, "Stop ongoing sched_scan to add " | |
2170 | "new network to scan filters"); | |
2171 | wpa_supplicant_cancel_sched_scan(wpa_s); | |
2172 | } | |
2173 | ||
2174 | if (wpa_supplicant_fast_associate(wpa_s) != 1) | |
2175 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
2176 | } | |
2177 | } | |
2178 | ||
2179 | ||
2180 | /** | |
2181 | * wpa_supplicant_disable_network - Mark a configured network as disabled | |
2182 | * @wpa_s: wpa_supplicant structure for a network interface | |
2183 | * @ssid: wpa_ssid structure for a configured network or %NULL | |
2184 | * | |
2185 | * Disables the specified network or all networks if no network specified. | |
2186 | */ | |
2187 | void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s, | |
2188 | struct wpa_ssid *ssid) | |
2189 | { | |
2190 | struct wpa_ssid *other_ssid; | |
2191 | int was_disabled; | |
2192 | ||
2193 | if (ssid == NULL) { | |
2194 | if (wpa_s->sched_scanning) | |
2195 | wpa_supplicant_cancel_sched_scan(wpa_s); | |
2196 | ||
2197 | for (other_ssid = wpa_s->conf->ssid; other_ssid; | |
2198 | other_ssid = other_ssid->next) { | |
2199 | was_disabled = other_ssid->disabled; | |
2200 | if (was_disabled == 2) | |
2201 | continue; /* do not change persistent P2P group | |
2202 | * data */ | |
2203 | ||
2204 | other_ssid->disabled = 1; | |
2205 | ||
2206 | if (was_disabled != other_ssid->disabled) | |
2207 | wpas_notify_network_enabled_changed( | |
2208 | wpa_s, other_ssid); | |
2209 | } | |
2210 | if (wpa_s->current_ssid) | |
2211 | wpa_supplicant_deauthenticate( | |
2212 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
2213 | } else if (ssid->disabled != 2) { | |
2214 | if (ssid == wpa_s->current_ssid) | |
2215 | wpa_supplicant_deauthenticate( | |
2216 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
2217 | ||
2218 | was_disabled = ssid->disabled; | |
2219 | ||
2220 | ssid->disabled = 1; | |
2221 | ||
2222 | if (was_disabled != ssid->disabled) { | |
2223 | wpas_notify_network_enabled_changed(wpa_s, ssid); | |
2224 | if (wpa_s->sched_scanning) { | |
2225 | wpa_printf(MSG_DEBUG, "Stop ongoing sched_scan " | |
2226 | "to remove network from filters"); | |
2227 | wpa_supplicant_cancel_sched_scan(wpa_s); | |
2228 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
2229 | } | |
2230 | } | |
2231 | } | |
2232 | } | |
2233 | ||
2234 | ||
2235 | /** | |
2236 | * wpa_supplicant_select_network - Attempt association with a network | |
2237 | * @wpa_s: wpa_supplicant structure for a network interface | |
2238 | * @ssid: wpa_ssid structure for a configured network or %NULL for any network | |
2239 | */ | |
2240 | void wpa_supplicant_select_network(struct wpa_supplicant *wpa_s, | |
2241 | struct wpa_ssid *ssid) | |
2242 | { | |
2243 | ||
2244 | struct wpa_ssid *other_ssid; | |
2245 | int disconnected = 0; | |
2246 | ||
2247 | if (ssid && ssid != wpa_s->current_ssid && wpa_s->current_ssid) { | |
2248 | wpa_supplicant_deauthenticate( | |
2249 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
2250 | disconnected = 1; | |
2251 | } | |
2252 | ||
2253 | if (ssid) | |
2254 | wpas_clear_temp_disabled(wpa_s, ssid, 1); | |
2255 | ||
2256 | /* | |
2257 | * Mark all other networks disabled or mark all networks enabled if no | |
2258 | * network specified. | |
2259 | */ | |
2260 | for (other_ssid = wpa_s->conf->ssid; other_ssid; | |
2261 | other_ssid = other_ssid->next) { | |
2262 | int was_disabled = other_ssid->disabled; | |
2263 | if (was_disabled == 2) | |
2264 | continue; /* do not change persistent P2P group data */ | |
2265 | ||
2266 | other_ssid->disabled = ssid ? (ssid->id != other_ssid->id) : 0; | |
2267 | if (was_disabled && !other_ssid->disabled) | |
2268 | wpas_clear_temp_disabled(wpa_s, other_ssid, 0); | |
2269 | ||
2270 | if (was_disabled != other_ssid->disabled) | |
2271 | wpas_notify_network_enabled_changed(wpa_s, other_ssid); | |
2272 | } | |
2273 | ||
2274 | if (ssid && ssid == wpa_s->current_ssid && wpa_s->current_ssid) { | |
2275 | /* We are already associated with the selected network */ | |
2276 | wpa_printf(MSG_DEBUG, "Already associated with the " | |
2277 | "selected network - do nothing"); | |
2278 | return; | |
2279 | } | |
2280 | ||
2281 | if (ssid) { | |
2282 | wpa_s->current_ssid = ssid; | |
2283 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
2284 | } | |
2285 | wpa_s->connect_without_scan = NULL; | |
2286 | wpa_s->disconnected = 0; | |
2287 | wpa_s->reassociate = 1; | |
2288 | ||
2289 | if (wpa_supplicant_fast_associate(wpa_s) != 1) | |
2290 | wpa_supplicant_req_scan(wpa_s, 0, disconnected ? 100000 : 0); | |
2291 | ||
2292 | if (ssid) | |
2293 | wpas_notify_network_selected(wpa_s, ssid); | |
2294 | } | |
2295 | ||
2296 | ||
2297 | /** | |
2298 | * wpas_set_pkcs11_engine_and_module_path - Set PKCS #11 engine and module path | |
2299 | * @wpa_s: wpa_supplicant structure for a network interface | |
2300 | * @pkcs11_engine_path: PKCS #11 engine path or NULL | |
2301 | * @pkcs11_module_path: PKCS #11 module path or NULL | |
2302 | * Returns: 0 on success; -1 on failure | |
2303 | * | |
2304 | * Sets the PKCS #11 engine and module path. Both have to be NULL or a valid | |
2305 | * path. If resetting the EAPOL state machine with the new PKCS #11 engine and | |
2306 | * module path fails the paths will be reset to the default value (NULL). | |
2307 | */ | |
2308 | int wpas_set_pkcs11_engine_and_module_path(struct wpa_supplicant *wpa_s, | |
2309 | const char *pkcs11_engine_path, | |
2310 | const char *pkcs11_module_path) | |
2311 | { | |
2312 | char *pkcs11_engine_path_copy = NULL; | |
2313 | char *pkcs11_module_path_copy = NULL; | |
2314 | ||
2315 | if (pkcs11_engine_path != NULL) { | |
2316 | pkcs11_engine_path_copy = os_strdup(pkcs11_engine_path); | |
2317 | if (pkcs11_engine_path_copy == NULL) | |
2318 | return -1; | |
2319 | } | |
2320 | if (pkcs11_module_path != NULL) { | |
2321 | pkcs11_module_path_copy = os_strdup(pkcs11_module_path); | |
2322 | if (pkcs11_module_path_copy == NULL) { | |
2323 | os_free(pkcs11_engine_path_copy); | |
2324 | return -1; | |
2325 | } | |
2326 | } | |
2327 | ||
2328 | os_free(wpa_s->conf->pkcs11_engine_path); | |
2329 | os_free(wpa_s->conf->pkcs11_module_path); | |
2330 | wpa_s->conf->pkcs11_engine_path = pkcs11_engine_path_copy; | |
2331 | wpa_s->conf->pkcs11_module_path = pkcs11_module_path_copy; | |
2332 | ||
2333 | wpa_sm_set_eapol(wpa_s->wpa, NULL); | |
2334 | eapol_sm_deinit(wpa_s->eapol); | |
2335 | wpa_s->eapol = NULL; | |
2336 | if (wpa_supplicant_init_eapol(wpa_s)) { | |
2337 | /* Error -> Reset paths to the default value (NULL) once. */ | |
2338 | if (pkcs11_engine_path != NULL && pkcs11_module_path != NULL) | |
2339 | wpas_set_pkcs11_engine_and_module_path(wpa_s, NULL, | |
2340 | NULL); | |
2341 | ||
2342 | return -1; | |
2343 | } | |
2344 | wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol); | |
2345 | ||
2346 | return 0; | |
2347 | } | |
2348 | ||
2349 | ||
2350 | /** | |
2351 | * wpa_supplicant_set_ap_scan - Set AP scan mode for interface | |
2352 | * @wpa_s: wpa_supplicant structure for a network interface | |
2353 | * @ap_scan: AP scan mode | |
2354 | * Returns: 0 if succeed or -1 if ap_scan has an invalid value | |
2355 | * | |
2356 | */ | |
2357 | int wpa_supplicant_set_ap_scan(struct wpa_supplicant *wpa_s, int ap_scan) | |
2358 | { | |
2359 | ||
2360 | int old_ap_scan; | |
2361 | ||
2362 | if (ap_scan < 0 || ap_scan > 2) | |
2363 | return -1; | |
2364 | ||
2365 | #ifdef ANDROID | |
2366 | if (ap_scan == 2 && ap_scan != wpa_s->conf->ap_scan && | |
2367 | wpa_s->wpa_state >= WPA_ASSOCIATING && | |
2368 | wpa_s->wpa_state < WPA_COMPLETED) { | |
2369 | wpa_printf(MSG_ERROR, "ap_scan = %d (%d) rejected while " | |
2370 | "associating", wpa_s->conf->ap_scan, ap_scan); | |
2371 | return 0; | |
2372 | } | |
2373 | #endif /* ANDROID */ | |
2374 | ||
2375 | old_ap_scan = wpa_s->conf->ap_scan; | |
2376 | wpa_s->conf->ap_scan = ap_scan; | |
2377 | ||
2378 | if (old_ap_scan != wpa_s->conf->ap_scan) | |
2379 | wpas_notify_ap_scan_changed(wpa_s); | |
2380 | ||
2381 | return 0; | |
2382 | } | |
2383 | ||
2384 | ||
2385 | /** | |
2386 | * wpa_supplicant_set_bss_expiration_age - Set BSS entry expiration age | |
2387 | * @wpa_s: wpa_supplicant structure for a network interface | |
2388 | * @expire_age: Expiration age in seconds | |
2389 | * Returns: 0 if succeed or -1 if expire_age has an invalid value | |
2390 | * | |
2391 | */ | |
2392 | int wpa_supplicant_set_bss_expiration_age(struct wpa_supplicant *wpa_s, | |
2393 | unsigned int bss_expire_age) | |
2394 | { | |
2395 | if (bss_expire_age < 10) { | |
2396 | wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration age %u", | |
2397 | bss_expire_age); | |
2398 | return -1; | |
2399 | } | |
2400 | wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration age: %d sec", | |
2401 | bss_expire_age); | |
2402 | wpa_s->conf->bss_expiration_age = bss_expire_age; | |
2403 | ||
2404 | return 0; | |
2405 | } | |
2406 | ||
2407 | ||
2408 | /** | |
2409 | * wpa_supplicant_set_bss_expiration_count - Set BSS entry expiration scan count | |
2410 | * @wpa_s: wpa_supplicant structure for a network interface | |
2411 | * @expire_count: number of scans after which an unseen BSS is reclaimed | |
2412 | * Returns: 0 if succeed or -1 if expire_count has an invalid value | |
2413 | * | |
2414 | */ | |
2415 | int wpa_supplicant_set_bss_expiration_count(struct wpa_supplicant *wpa_s, | |
2416 | unsigned int bss_expire_count) | |
2417 | { | |
2418 | if (bss_expire_count < 1) { | |
2419 | wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration count %u", | |
2420 | bss_expire_count); | |
2421 | return -1; | |
2422 | } | |
2423 | wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration scan count: %u", | |
2424 | bss_expire_count); | |
2425 | wpa_s->conf->bss_expiration_scan_count = bss_expire_count; | |
2426 | ||
2427 | return 0; | |
2428 | } | |
2429 | ||
2430 | ||
2431 | /** | |
2432 | * wpa_supplicant_set_scan_interval - Set scan interval | |
2433 | * @wpa_s: wpa_supplicant structure for a network interface | |
2434 | * @scan_interval: scan interval in seconds | |
2435 | * Returns: 0 if succeed or -1 if scan_interval has an invalid value | |
2436 | * | |
2437 | */ | |
2438 | int wpa_supplicant_set_scan_interval(struct wpa_supplicant *wpa_s, | |
2439 | int scan_interval) | |
2440 | { | |
2441 | if (scan_interval < 0) { | |
2442 | wpa_msg(wpa_s, MSG_ERROR, "Invalid scan interval %d", | |
2443 | scan_interval); | |
2444 | return -1; | |
2445 | } | |
2446 | wpa_msg(wpa_s, MSG_DEBUG, "Setting scan interval: %d sec", | |
2447 | scan_interval); | |
2448 | wpa_supplicant_update_scan_int(wpa_s, scan_interval); | |
2449 | ||
2450 | return 0; | |
2451 | } | |
2452 | ||
2453 | ||
2454 | /** | |
2455 | * wpa_supplicant_set_debug_params - Set global debug params | |
2456 | * @global: wpa_global structure | |
2457 | * @debug_level: debug level | |
2458 | * @debug_timestamp: determines if show timestamp in debug data | |
2459 | * @debug_show_keys: determines if show keys in debug data | |
2460 | * Returns: 0 if succeed or -1 if debug_level has wrong value | |
2461 | */ | |
2462 | int wpa_supplicant_set_debug_params(struct wpa_global *global, int debug_level, | |
2463 | int debug_timestamp, int debug_show_keys) | |
2464 | { | |
2465 | ||
2466 | int old_level, old_timestamp, old_show_keys; | |
2467 | ||
2468 | /* check for allowed debuglevels */ | |
2469 | if (debug_level != MSG_EXCESSIVE && | |
2470 | debug_level != MSG_MSGDUMP && | |
2471 | debug_level != MSG_DEBUG && | |
2472 | debug_level != MSG_INFO && | |
2473 | debug_level != MSG_WARNING && | |
2474 | debug_level != MSG_ERROR) | |
2475 | return -1; | |
2476 | ||
2477 | old_level = wpa_debug_level; | |
2478 | old_timestamp = wpa_debug_timestamp; | |
2479 | old_show_keys = wpa_debug_show_keys; | |
2480 | ||
2481 | wpa_debug_level = debug_level; | |
2482 | wpa_debug_timestamp = debug_timestamp ? 1 : 0; | |
2483 | wpa_debug_show_keys = debug_show_keys ? 1 : 0; | |
2484 | ||
2485 | if (wpa_debug_level != old_level) | |
2486 | wpas_notify_debug_level_changed(global); | |
2487 | if (wpa_debug_timestamp != old_timestamp) | |
2488 | wpas_notify_debug_timestamp_changed(global); | |
2489 | if (wpa_debug_show_keys != old_show_keys) | |
2490 | wpas_notify_debug_show_keys_changed(global); | |
2491 | ||
2492 | return 0; | |
2493 | } | |
2494 | ||
2495 | ||
2496 | /** | |
2497 | * wpa_supplicant_get_ssid - Get a pointer to the current network structure | |
2498 | * @wpa_s: Pointer to wpa_supplicant data | |
2499 | * Returns: A pointer to the current network structure or %NULL on failure | |
2500 | */ | |
2501 | struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s) | |
2502 | { | |
2503 | struct wpa_ssid *entry; | |
2504 | u8 ssid[MAX_SSID_LEN]; | |
2505 | int res; | |
2506 | size_t ssid_len; | |
2507 | u8 bssid[ETH_ALEN]; | |
2508 | int wired; | |
2509 | ||
2510 | res = wpa_drv_get_ssid(wpa_s, ssid); | |
2511 | if (res < 0) { | |
2512 | wpa_msg(wpa_s, MSG_WARNING, "Could not read SSID from " | |
2513 | "driver"); | |
2514 | return NULL; | |
2515 | } | |
2516 | ssid_len = res; | |
2517 | ||
2518 | if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { | |
2519 | wpa_msg(wpa_s, MSG_WARNING, "Could not read BSSID from " | |
2520 | "driver"); | |
2521 | return NULL; | |
2522 | } | |
2523 | ||
2524 | wired = wpa_s->conf->ap_scan == 0 && | |
2525 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED); | |
2526 | ||
2527 | entry = wpa_s->conf->ssid; | |
2528 | while (entry) { | |
2529 | if (!wpas_network_disabled(wpa_s, entry) && | |
2530 | ((ssid_len == entry->ssid_len && | |
2531 | os_memcmp(ssid, entry->ssid, ssid_len) == 0) || wired) && | |
2532 | (!entry->bssid_set || | |
2533 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) | |
2534 | return entry; | |
2535 | #ifdef CONFIG_WPS | |
2536 | if (!wpas_network_disabled(wpa_s, entry) && | |
2537 | (entry->key_mgmt & WPA_KEY_MGMT_WPS) && | |
2538 | (entry->ssid == NULL || entry->ssid_len == 0) && | |
2539 | (!entry->bssid_set || | |
2540 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) | |
2541 | return entry; | |
2542 | #endif /* CONFIG_WPS */ | |
2543 | ||
2544 | if (!wpas_network_disabled(wpa_s, entry) && entry->bssid_set && | |
2545 | entry->ssid_len == 0 && | |
2546 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0) | |
2547 | return entry; | |
2548 | ||
2549 | entry = entry->next; | |
2550 | } | |
2551 | ||
2552 | return NULL; | |
2553 | } | |
2554 | ||
2555 | ||
2556 | static int select_driver(struct wpa_supplicant *wpa_s, int i) | |
2557 | { | |
2558 | struct wpa_global *global = wpa_s->global; | |
2559 | ||
2560 | if (wpa_drivers[i]->global_init && global->drv_priv[i] == NULL) { | |
2561 | global->drv_priv[i] = wpa_drivers[i]->global_init(); | |
2562 | if (global->drv_priv[i] == NULL) { | |
2563 | wpa_printf(MSG_ERROR, "Failed to initialize driver " | |
2564 | "'%s'", wpa_drivers[i]->name); | |
2565 | return -1; | |
2566 | } | |
2567 | } | |
2568 | ||
2569 | wpa_s->driver = wpa_drivers[i]; | |
2570 | wpa_s->global_drv_priv = global->drv_priv[i]; | |
2571 | ||
2572 | return 0; | |
2573 | } | |
2574 | ||
2575 | ||
2576 | static int wpa_supplicant_set_driver(struct wpa_supplicant *wpa_s, | |
2577 | const char *name) | |
2578 | { | |
2579 | int i; | |
2580 | size_t len; | |
2581 | const char *pos, *driver = name; | |
2582 | ||
2583 | if (wpa_s == NULL) | |
2584 | return -1; | |
2585 | ||
2586 | if (wpa_drivers[0] == NULL) { | |
2587 | wpa_msg(wpa_s, MSG_ERROR, "No driver interfaces build into " | |
2588 | "wpa_supplicant"); | |
2589 | return -1; | |
2590 | } | |
2591 | ||
2592 | if (name == NULL) { | |
2593 | /* default to first driver in the list */ | |
2594 | return select_driver(wpa_s, 0); | |
2595 | } | |
2596 | ||
2597 | do { | |
2598 | pos = os_strchr(driver, ','); | |
2599 | if (pos) | |
2600 | len = pos - driver; | |
2601 | else | |
2602 | len = os_strlen(driver); | |
2603 | ||
2604 | for (i = 0; wpa_drivers[i]; i++) { | |
2605 | if (os_strlen(wpa_drivers[i]->name) == len && | |
2606 | os_strncmp(driver, wpa_drivers[i]->name, len) == | |
2607 | 0) { | |
2608 | /* First driver that succeeds wins */ | |
2609 | if (select_driver(wpa_s, i) == 0) | |
2610 | return 0; | |
2611 | } | |
2612 | } | |
2613 | ||
2614 | driver = pos + 1; | |
2615 | } while (pos); | |
2616 | ||
2617 | wpa_msg(wpa_s, MSG_ERROR, "Unsupported driver '%s'", name); | |
2618 | return -1; | |
2619 | } | |
2620 | ||
2621 | ||
2622 | /** | |
2623 | * wpa_supplicant_rx_eapol - Deliver a received EAPOL frame to wpa_supplicant | |
2624 | * @ctx: Context pointer (wpa_s); this is the ctx variable registered | |
2625 | * with struct wpa_driver_ops::init() | |
2626 | * @src_addr: Source address of the EAPOL frame | |
2627 | * @buf: EAPOL data starting from the EAPOL header (i.e., no Ethernet header) | |
2628 | * @len: Length of the EAPOL data | |
2629 | * | |
2630 | * This function is called for each received EAPOL frame. Most driver | |
2631 | * interfaces rely on more generic OS mechanism for receiving frames through | |
2632 | * l2_packet, but if such a mechanism is not available, the driver wrapper may | |
2633 | * take care of received EAPOL frames and deliver them to the core supplicant | |
2634 | * code by calling this function. | |
2635 | */ | |
2636 | void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr, | |
2637 | const u8 *buf, size_t len) | |
2638 | { | |
2639 | struct wpa_supplicant *wpa_s = ctx; | |
2640 | ||
2641 | wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR, MAC2STR(src_addr)); | |
2642 | wpa_hexdump(MSG_MSGDUMP, "RX EAPOL", buf, len); | |
2643 | ||
2644 | #ifdef CONFIG_PEERKEY | |
2645 | if (wpa_s->wpa_state > WPA_ASSOCIATED && wpa_s->current_ssid && | |
2646 | wpa_s->current_ssid->peerkey && | |
2647 | !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && | |
2648 | wpa_sm_rx_eapol_peerkey(wpa_s->wpa, src_addr, buf, len) == 1) { | |
2649 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: Processed PeerKey EAPOL-Key"); | |
2650 | return; | |
2651 | } | |
2652 | #endif /* CONFIG_PEERKEY */ | |
2653 | ||
2654 | if (wpa_s->wpa_state < WPA_ASSOCIATED || | |
2655 | (wpa_s->last_eapol_matches_bssid && | |
2656 | #ifdef CONFIG_AP | |
2657 | !wpa_s->ap_iface && | |
2658 | #endif /* CONFIG_AP */ | |
2659 | os_memcmp(src_addr, wpa_s->bssid, ETH_ALEN) != 0)) { | |
2660 | /* | |
2661 | * There is possible race condition between receiving the | |
2662 | * association event and the EAPOL frame since they are coming | |
2663 | * through different paths from the driver. In order to avoid | |
2664 | * issues in trying to process the EAPOL frame before receiving | |
2665 | * association information, lets queue it for processing until | |
2666 | * the association event is received. This may also be needed in | |
2667 | * driver-based roaming case, so also use src_addr != BSSID as a | |
2668 | * trigger if we have previously confirmed that the | |
2669 | * Authenticator uses BSSID as the src_addr (which is not the | |
2670 | * case with wired IEEE 802.1X). | |
2671 | */ | |
2672 | wpa_dbg(wpa_s, MSG_DEBUG, "Not associated - Delay processing " | |
2673 | "of received EAPOL frame (state=%s bssid=" MACSTR ")", | |
2674 | wpa_supplicant_state_txt(wpa_s->wpa_state), | |
2675 | MAC2STR(wpa_s->bssid)); | |
2676 | wpabuf_free(wpa_s->pending_eapol_rx); | |
2677 | wpa_s->pending_eapol_rx = wpabuf_alloc_copy(buf, len); | |
2678 | if (wpa_s->pending_eapol_rx) { | |
2679 | os_get_reltime(&wpa_s->pending_eapol_rx_time); | |
2680 | os_memcpy(wpa_s->pending_eapol_rx_src, src_addr, | |
2681 | ETH_ALEN); | |
2682 | } | |
2683 | return; | |
2684 | } | |
2685 | ||
2686 | wpa_s->last_eapol_matches_bssid = | |
2687 | os_memcmp(src_addr, wpa_s->bssid, ETH_ALEN) == 0; | |
2688 | ||
2689 | #ifdef CONFIG_AP | |
2690 | if (wpa_s->ap_iface) { | |
2691 | wpa_supplicant_ap_rx_eapol(wpa_s, src_addr, buf, len); | |
2692 | return; | |
2693 | } | |
2694 | #endif /* CONFIG_AP */ | |
2695 | ||
2696 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) { | |
2697 | wpa_dbg(wpa_s, MSG_DEBUG, "Ignored received EAPOL frame since " | |
2698 | "no key management is configured"); | |
2699 | return; | |
2700 | } | |
2701 | ||
2702 | if (wpa_s->eapol_received == 0 && | |
2703 | (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) || | |
2704 | !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || | |
2705 | wpa_s->wpa_state != WPA_COMPLETED) && | |
2706 | (wpa_s->current_ssid == NULL || | |
2707 | wpa_s->current_ssid->mode != IEEE80211_MODE_IBSS)) { | |
2708 | /* Timeout for completing IEEE 802.1X and WPA authentication */ | |
2709 | wpa_supplicant_req_auth_timeout( | |
2710 | wpa_s, | |
2711 | (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || | |
2712 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA || | |
2713 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) ? | |
2714 | 70 : 10, 0); | |
2715 | } | |
2716 | wpa_s->eapol_received++; | |
2717 | ||
2718 | if (wpa_s->countermeasures) { | |
2719 | wpa_msg(wpa_s, MSG_INFO, "WPA: Countermeasures - dropped " | |
2720 | "EAPOL packet"); | |
2721 | return; | |
2722 | } | |
2723 | ||
2724 | #ifdef CONFIG_IBSS_RSN | |
2725 | if (wpa_s->current_ssid && | |
2726 | wpa_s->current_ssid->mode == WPAS_MODE_IBSS) { | |
2727 | ibss_rsn_rx_eapol(wpa_s->ibss_rsn, src_addr, buf, len); | |
2728 | return; | |
2729 | } | |
2730 | #endif /* CONFIG_IBSS_RSN */ | |
2731 | ||
2732 | /* Source address of the incoming EAPOL frame could be compared to the | |
2733 | * current BSSID. However, it is possible that a centralized | |
2734 | * Authenticator could be using another MAC address than the BSSID of | |
2735 | * an AP, so just allow any address to be used for now. The replies are | |
2736 | * still sent to the current BSSID (if available), though. */ | |
2737 | ||
2738 | os_memcpy(wpa_s->last_eapol_src, src_addr, ETH_ALEN); | |
2739 | if (!wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) && | |
2740 | eapol_sm_rx_eapol(wpa_s->eapol, src_addr, buf, len) > 0) | |
2741 | return; | |
2742 | wpa_drv_poll(wpa_s); | |
2743 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE)) | |
2744 | wpa_sm_rx_eapol(wpa_s->wpa, src_addr, buf, len); | |
2745 | else if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { | |
2746 | /* | |
2747 | * Set portValid = TRUE here since we are going to skip 4-way | |
2748 | * handshake processing which would normally set portValid. We | |
2749 | * need this to allow the EAPOL state machines to be completed | |
2750 | * without going through EAPOL-Key handshake. | |
2751 | */ | |
2752 | eapol_sm_notify_portValid(wpa_s->eapol, TRUE); | |
2753 | } | |
2754 | } | |
2755 | ||
2756 | ||
2757 | int wpa_supplicant_update_mac_addr(struct wpa_supplicant *wpa_s) | |
2758 | { | |
2759 | if (wpa_s->driver->send_eapol) { | |
2760 | const u8 *addr = wpa_drv_get_mac_addr(wpa_s); | |
2761 | if (addr) | |
2762 | os_memcpy(wpa_s->own_addr, addr, ETH_ALEN); | |
2763 | } else if ((!wpa_s->p2p_mgmt || | |
2764 | !(wpa_s->drv_flags & | |
2765 | WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) && | |
2766 | !(wpa_s->drv_flags & | |
2767 | WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)) { | |
2768 | l2_packet_deinit(wpa_s->l2); | |
2769 | wpa_s->l2 = l2_packet_init(wpa_s->ifname, | |
2770 | wpa_drv_get_mac_addr(wpa_s), | |
2771 | ETH_P_EAPOL, | |
2772 | wpa_supplicant_rx_eapol, wpa_s, 0); | |
2773 | if (wpa_s->l2 == NULL) | |
2774 | return -1; | |
2775 | } else { | |
2776 | const u8 *addr = wpa_drv_get_mac_addr(wpa_s); | |
2777 | if (addr) | |
2778 | os_memcpy(wpa_s->own_addr, addr, ETH_ALEN); | |
2779 | } | |
2780 | ||
2781 | if (wpa_s->l2 && l2_packet_get_own_addr(wpa_s->l2, wpa_s->own_addr)) { | |
2782 | wpa_msg(wpa_s, MSG_ERROR, "Failed to get own L2 address"); | |
2783 | return -1; | |
2784 | } | |
2785 | ||
2786 | wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr); | |
2787 | ||
2788 | return 0; | |
2789 | } | |
2790 | ||
2791 | ||
2792 | static void wpa_supplicant_rx_eapol_bridge(void *ctx, const u8 *src_addr, | |
2793 | const u8 *buf, size_t len) | |
2794 | { | |
2795 | struct wpa_supplicant *wpa_s = ctx; | |
2796 | const struct l2_ethhdr *eth; | |
2797 | ||
2798 | if (len < sizeof(*eth)) | |
2799 | return; | |
2800 | eth = (const struct l2_ethhdr *) buf; | |
2801 | ||
2802 | if (os_memcmp(eth->h_dest, wpa_s->own_addr, ETH_ALEN) != 0 && | |
2803 | !(eth->h_dest[0] & 0x01)) { | |
2804 | wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR " to " MACSTR | |
2805 | " (bridge - not for this interface - ignore)", | |
2806 | MAC2STR(src_addr), MAC2STR(eth->h_dest)); | |
2807 | return; | |
2808 | } | |
2809 | ||
2810 | wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR " to " MACSTR | |
2811 | " (bridge)", MAC2STR(src_addr), MAC2STR(eth->h_dest)); | |
2812 | wpa_supplicant_rx_eapol(wpa_s, src_addr, buf + sizeof(*eth), | |
2813 | len - sizeof(*eth)); | |
2814 | } | |
2815 | ||
2816 | ||
2817 | /** | |
2818 | * wpa_supplicant_driver_init - Initialize driver interface parameters | |
2819 | * @wpa_s: Pointer to wpa_supplicant data | |
2820 | * Returns: 0 on success, -1 on failure | |
2821 | * | |
2822 | * This function is called to initialize driver interface parameters. | |
2823 | * wpa_drv_init() must have been called before this function to initialize the | |
2824 | * driver interface. | |
2825 | */ | |
2826 | int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s) | |
2827 | { | |
2828 | static int interface_count = 0; | |
2829 | ||
2830 | if (wpa_supplicant_update_mac_addr(wpa_s) < 0) | |
2831 | return -1; | |
2832 | ||
2833 | wpa_dbg(wpa_s, MSG_DEBUG, "Own MAC address: " MACSTR, | |
2834 | MAC2STR(wpa_s->own_addr)); | |
2835 | os_memcpy(wpa_s->perm_addr, wpa_s->own_addr, ETH_ALEN); | |
2836 | wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr); | |
2837 | ||
2838 | if (wpa_s->bridge_ifname[0]) { | |
2839 | wpa_dbg(wpa_s, MSG_DEBUG, "Receiving packets from bridge " | |
2840 | "interface '%s'", wpa_s->bridge_ifname); | |
2841 | wpa_s->l2_br = l2_packet_init(wpa_s->bridge_ifname, | |
2842 | wpa_s->own_addr, | |
2843 | ETH_P_EAPOL, | |
2844 | wpa_supplicant_rx_eapol_bridge, | |
2845 | wpa_s, 1); | |
2846 | if (wpa_s->l2_br == NULL) { | |
2847 | wpa_msg(wpa_s, MSG_ERROR, "Failed to open l2_packet " | |
2848 | "connection for the bridge interface '%s'", | |
2849 | wpa_s->bridge_ifname); | |
2850 | return -1; | |
2851 | } | |
2852 | } | |
2853 | ||
2854 | wpa_clear_keys(wpa_s, NULL); | |
2855 | ||
2856 | /* Make sure that TKIP countermeasures are not left enabled (could | |
2857 | * happen if wpa_supplicant is killed during countermeasures. */ | |
2858 | wpa_drv_set_countermeasures(wpa_s, 0); | |
2859 | ||
2860 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: flushing PMKID list in the driver"); | |
2861 | wpa_drv_flush_pmkid(wpa_s); | |
2862 | ||
2863 | wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN; | |
2864 | wpa_s->prev_scan_wildcard = 0; | |
2865 | ||
2866 | if (wpa_supplicant_enabled_networks(wpa_s)) { | |
2867 | if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { | |
2868 | wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); | |
2869 | interface_count = 0; | |
2870 | } | |
2871 | if (!wpa_s->p2p_mgmt && | |
2872 | wpa_supplicant_delayed_sched_scan(wpa_s, | |
2873 | interface_count % 3, | |
2874 | 100000)) | |
2875 | wpa_supplicant_req_scan(wpa_s, interface_count % 3, | |
2876 | 100000); | |
2877 | interface_count++; | |
2878 | } else | |
2879 | wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); | |
2880 | ||
2881 | return 0; | |
2882 | } | |
2883 | ||
2884 | ||
2885 | static int wpa_supplicant_daemon(const char *pid_file) | |
2886 | { | |
2887 | wpa_printf(MSG_DEBUG, "Daemonize.."); | |
2888 | return os_daemonize(pid_file); | |
2889 | } | |
2890 | ||
2891 | ||
2892 | static struct wpa_supplicant * wpa_supplicant_alloc(void) | |
2893 | { | |
2894 | struct wpa_supplicant *wpa_s; | |
2895 | ||
2896 | wpa_s = os_zalloc(sizeof(*wpa_s)); | |
2897 | if (wpa_s == NULL) | |
2898 | return NULL; | |
2899 | wpa_s->scan_req = INITIAL_SCAN_REQ; | |
2900 | wpa_s->scan_interval = 5; | |
2901 | wpa_s->new_connection = 1; | |
2902 | wpa_s->parent = wpa_s; | |
2903 | wpa_s->sched_scanning = 0; | |
2904 | ||
2905 | return wpa_s; | |
2906 | } | |
2907 | ||
2908 | ||
2909 | #ifdef CONFIG_HT_OVERRIDES | |
2910 | ||
2911 | static int wpa_set_htcap_mcs(struct wpa_supplicant *wpa_s, | |
2912 | struct ieee80211_ht_capabilities *htcaps, | |
2913 | struct ieee80211_ht_capabilities *htcaps_mask, | |
2914 | const char *ht_mcs) | |
2915 | { | |
2916 | /* parse ht_mcs into hex array */ | |
2917 | int i; | |
2918 | const char *tmp = ht_mcs; | |
2919 | char *end = NULL; | |
2920 | ||
2921 | /* If ht_mcs is null, do not set anything */ | |
2922 | if (!ht_mcs) | |
2923 | return 0; | |
2924 | ||
2925 | /* This is what we are setting in the kernel */ | |
2926 | os_memset(&htcaps->supported_mcs_set, 0, IEEE80211_HT_MCS_MASK_LEN); | |
2927 | ||
2928 | wpa_msg(wpa_s, MSG_DEBUG, "set_htcap, ht_mcs -:%s:-", ht_mcs); | |
2929 | ||
2930 | for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) { | |
2931 | errno = 0; | |
2932 | long v = strtol(tmp, &end, 16); | |
2933 | if (errno == 0) { | |
2934 | wpa_msg(wpa_s, MSG_DEBUG, | |
2935 | "htcap value[%i]: %ld end: %p tmp: %p", | |
2936 | i, v, end, tmp); | |
2937 | if (end == tmp) | |
2938 | break; | |
2939 | ||
2940 | htcaps->supported_mcs_set[i] = v; | |
2941 | tmp = end; | |
2942 | } else { | |
2943 | wpa_msg(wpa_s, MSG_ERROR, | |
2944 | "Failed to parse ht-mcs: %s, error: %s\n", | |
2945 | ht_mcs, strerror(errno)); | |
2946 | return -1; | |
2947 | } | |
2948 | } | |
2949 | ||
2950 | /* | |
2951 | * If we were able to parse any values, then set mask for the MCS set. | |
2952 | */ | |
2953 | if (i) { | |
2954 | os_memset(&htcaps_mask->supported_mcs_set, 0xff, | |
2955 | IEEE80211_HT_MCS_MASK_LEN - 1); | |
2956 | /* skip the 3 reserved bits */ | |
2957 | htcaps_mask->supported_mcs_set[IEEE80211_HT_MCS_MASK_LEN - 1] = | |
2958 | 0x1f; | |
2959 | } | |
2960 | ||
2961 | return 0; | |
2962 | } | |
2963 | ||
2964 | ||
2965 | static int wpa_disable_max_amsdu(struct wpa_supplicant *wpa_s, | |
2966 | struct ieee80211_ht_capabilities *htcaps, | |
2967 | struct ieee80211_ht_capabilities *htcaps_mask, | |
2968 | int disabled) | |
2969 | { | |
2970 | le16 msk; | |
2971 | ||
2972 | wpa_msg(wpa_s, MSG_DEBUG, "set_disable_max_amsdu: %d", disabled); | |
2973 | ||
2974 | if (disabled == -1) | |
2975 | return 0; | |
2976 | ||
2977 | msk = host_to_le16(HT_CAP_INFO_MAX_AMSDU_SIZE); | |
2978 | htcaps_mask->ht_capabilities_info |= msk; | |
2979 | if (disabled) | |
2980 | htcaps->ht_capabilities_info &= msk; | |
2981 | else | |
2982 | htcaps->ht_capabilities_info |= msk; | |
2983 | ||
2984 | return 0; | |
2985 | } | |
2986 | ||
2987 | ||
2988 | static int wpa_set_ampdu_factor(struct wpa_supplicant *wpa_s, | |
2989 | struct ieee80211_ht_capabilities *htcaps, | |
2990 | struct ieee80211_ht_capabilities *htcaps_mask, | |
2991 | int factor) | |
2992 | { | |
2993 | wpa_msg(wpa_s, MSG_DEBUG, "set_ampdu_factor: %d", factor); | |
2994 | ||
2995 | if (factor == -1) | |
2996 | return 0; | |
2997 | ||
2998 | if (factor < 0 || factor > 3) { | |
2999 | wpa_msg(wpa_s, MSG_ERROR, "ampdu_factor: %d out of range. " | |
3000 | "Must be 0-3 or -1", factor); | |
3001 | return -EINVAL; | |
3002 | } | |
3003 | ||
3004 | htcaps_mask->a_mpdu_params |= 0x3; /* 2 bits for factor */ | |
3005 | htcaps->a_mpdu_params &= ~0x3; | |
3006 | htcaps->a_mpdu_params |= factor & 0x3; | |
3007 | ||
3008 | return 0; | |
3009 | } | |
3010 | ||
3011 | ||
3012 | static int wpa_set_ampdu_density(struct wpa_supplicant *wpa_s, | |
3013 | struct ieee80211_ht_capabilities *htcaps, | |
3014 | struct ieee80211_ht_capabilities *htcaps_mask, | |
3015 | int density) | |
3016 | { | |
3017 | wpa_msg(wpa_s, MSG_DEBUG, "set_ampdu_density: %d", density); | |
3018 | ||
3019 | if (density == -1) | |
3020 | return 0; | |
3021 | ||
3022 | if (density < 0 || density > 7) { | |
3023 | wpa_msg(wpa_s, MSG_ERROR, | |
3024 | "ampdu_density: %d out of range. Must be 0-7 or -1.", | |
3025 | density); | |
3026 | return -EINVAL; | |
3027 | } | |
3028 | ||
3029 | htcaps_mask->a_mpdu_params |= 0x1C; | |
3030 | htcaps->a_mpdu_params &= ~(0x1C); | |
3031 | htcaps->a_mpdu_params |= (density << 2) & 0x1C; | |
3032 | ||
3033 | return 0; | |
3034 | } | |
3035 | ||
3036 | ||
3037 | static int wpa_set_disable_ht40(struct wpa_supplicant *wpa_s, | |
3038 | struct ieee80211_ht_capabilities *htcaps, | |
3039 | struct ieee80211_ht_capabilities *htcaps_mask, | |
3040 | int disabled) | |
3041 | { | |
3042 | /* Masking these out disables HT40 */ | |
3043 | le16 msk = host_to_le16(HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET | | |
3044 | HT_CAP_INFO_SHORT_GI40MHZ); | |
3045 | ||
3046 | wpa_msg(wpa_s, MSG_DEBUG, "set_disable_ht40: %d", disabled); | |
3047 | ||
3048 | if (disabled) | |
3049 | htcaps->ht_capabilities_info &= ~msk; | |
3050 | else | |
3051 | htcaps->ht_capabilities_info |= msk; | |
3052 | ||
3053 | htcaps_mask->ht_capabilities_info |= msk; | |
3054 | ||
3055 | return 0; | |
3056 | } | |
3057 | ||
3058 | ||
3059 | static int wpa_set_disable_sgi(struct wpa_supplicant *wpa_s, | |
3060 | struct ieee80211_ht_capabilities *htcaps, | |
3061 | struct ieee80211_ht_capabilities *htcaps_mask, | |
3062 | int disabled) | |
3063 | { | |
3064 | /* Masking these out disables SGI */ | |
3065 | le16 msk = host_to_le16(HT_CAP_INFO_SHORT_GI20MHZ | | |
3066 | HT_CAP_INFO_SHORT_GI40MHZ); | |
3067 | ||
3068 | wpa_msg(wpa_s, MSG_DEBUG, "set_disable_sgi: %d", disabled); | |
3069 | ||
3070 | if (disabled) | |
3071 | htcaps->ht_capabilities_info &= ~msk; | |
3072 | else | |
3073 | htcaps->ht_capabilities_info |= msk; | |
3074 | ||
3075 | htcaps_mask->ht_capabilities_info |= msk; | |
3076 | ||
3077 | return 0; | |
3078 | } | |
3079 | ||
3080 | ||
3081 | static int wpa_set_disable_ldpc(struct wpa_supplicant *wpa_s, | |
3082 | struct ieee80211_ht_capabilities *htcaps, | |
3083 | struct ieee80211_ht_capabilities *htcaps_mask, | |
3084 | int disabled) | |
3085 | { | |
3086 | /* Masking these out disables LDPC */ | |
3087 | le16 msk = host_to_le16(HT_CAP_INFO_LDPC_CODING_CAP); | |
3088 | ||
3089 | wpa_msg(wpa_s, MSG_DEBUG, "set_disable_ldpc: %d", disabled); | |
3090 | ||
3091 | if (disabled) | |
3092 | htcaps->ht_capabilities_info &= ~msk; | |
3093 | else | |
3094 | htcaps->ht_capabilities_info |= msk; | |
3095 | ||
3096 | htcaps_mask->ht_capabilities_info |= msk; | |
3097 | ||
3098 | return 0; | |
3099 | } | |
3100 | ||
3101 | ||
3102 | void wpa_supplicant_apply_ht_overrides( | |
3103 | struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid, | |
3104 | struct wpa_driver_associate_params *params) | |
3105 | { | |
3106 | struct ieee80211_ht_capabilities *htcaps; | |
3107 | struct ieee80211_ht_capabilities *htcaps_mask; | |
3108 | ||
3109 | if (!ssid) | |
3110 | return; | |
3111 | ||
3112 | params->disable_ht = ssid->disable_ht; | |
3113 | if (!params->htcaps || !params->htcaps_mask) | |
3114 | return; | |
3115 | ||
3116 | htcaps = (struct ieee80211_ht_capabilities *) params->htcaps; | |
3117 | htcaps_mask = (struct ieee80211_ht_capabilities *) params->htcaps_mask; | |
3118 | wpa_set_htcap_mcs(wpa_s, htcaps, htcaps_mask, ssid->ht_mcs); | |
3119 | wpa_disable_max_amsdu(wpa_s, htcaps, htcaps_mask, | |
3120 | ssid->disable_max_amsdu); | |
3121 | wpa_set_ampdu_factor(wpa_s, htcaps, htcaps_mask, ssid->ampdu_factor); | |
3122 | wpa_set_ampdu_density(wpa_s, htcaps, htcaps_mask, ssid->ampdu_density); | |
3123 | wpa_set_disable_ht40(wpa_s, htcaps, htcaps_mask, ssid->disable_ht40); | |
3124 | wpa_set_disable_sgi(wpa_s, htcaps, htcaps_mask, ssid->disable_sgi); | |
3125 | wpa_set_disable_ldpc(wpa_s, htcaps, htcaps_mask, ssid->disable_ldpc); | |
3126 | ||
3127 | if (ssid->ht40_intolerant) { | |
3128 | le16 bit = host_to_le16(HT_CAP_INFO_40MHZ_INTOLERANT); | |
3129 | htcaps->ht_capabilities_info |= bit; | |
3130 | htcaps_mask->ht_capabilities_info |= bit; | |
3131 | } | |
3132 | } | |
3133 | ||
3134 | #endif /* CONFIG_HT_OVERRIDES */ | |
3135 | ||
3136 | ||
3137 | #ifdef CONFIG_VHT_OVERRIDES | |
3138 | void wpa_supplicant_apply_vht_overrides( | |
3139 | struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid, | |
3140 | struct wpa_driver_associate_params *params) | |
3141 | { | |
3142 | struct ieee80211_vht_capabilities *vhtcaps; | |
3143 | struct ieee80211_vht_capabilities *vhtcaps_mask; | |
3144 | #ifdef CONFIG_HT_OVERRIDES | |
3145 | int max_ampdu; | |
3146 | const u32 max_ampdu_mask = VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MAX; | |
3147 | #endif /* CONFIG_HT_OVERRIDES */ | |
3148 | ||
3149 | if (!ssid) | |
3150 | return; | |
3151 | ||
3152 | params->disable_vht = ssid->disable_vht; | |
3153 | ||
3154 | vhtcaps = (void *) params->vhtcaps; | |
3155 | vhtcaps_mask = (void *) params->vhtcaps_mask; | |
3156 | ||
3157 | if (!vhtcaps || !vhtcaps_mask) | |
3158 | return; | |
3159 | ||
3160 | vhtcaps->vht_capabilities_info = ssid->vht_capa; | |
3161 | vhtcaps_mask->vht_capabilities_info = ssid->vht_capa_mask; | |
3162 | ||
3163 | #ifdef CONFIG_HT_OVERRIDES | |
3164 | /* if max ampdu is <= 3, we have to make the HT cap the same */ | |
3165 | if (ssid->vht_capa_mask & max_ampdu_mask) { | |
3166 | max_ampdu = (ssid->vht_capa & max_ampdu_mask) >> | |
3167 | find_first_bit(max_ampdu_mask); | |
3168 | ||
3169 | max_ampdu = max_ampdu < 3 ? max_ampdu : 3; | |
3170 | wpa_set_ampdu_factor(wpa_s, | |
3171 | (void *) params->htcaps, | |
3172 | (void *) params->htcaps_mask, | |
3173 | max_ampdu); | |
3174 | } | |
3175 | #endif /* CONFIG_HT_OVERRIDES */ | |
3176 | ||
3177 | #define OVERRIDE_MCS(i) \ | |
3178 | if (ssid->vht_tx_mcs_nss_ ##i >= 0) { \ | |
3179 | vhtcaps_mask->vht_supported_mcs_set.tx_map |= \ | |
3180 | 3 << 2 * (i - 1); \ | |
3181 | vhtcaps->vht_supported_mcs_set.tx_map |= \ | |
3182 | ssid->vht_tx_mcs_nss_ ##i << 2 * (i - 1); \ | |
3183 | } \ | |
3184 | if (ssid->vht_rx_mcs_nss_ ##i >= 0) { \ | |
3185 | vhtcaps_mask->vht_supported_mcs_set.rx_map |= \ | |
3186 | 3 << 2 * (i - 1); \ | |
3187 | vhtcaps->vht_supported_mcs_set.rx_map |= \ | |
3188 | ssid->vht_rx_mcs_nss_ ##i << 2 * (i - 1); \ | |
3189 | } | |
3190 | ||
3191 | OVERRIDE_MCS(1); | |
3192 | OVERRIDE_MCS(2); | |
3193 | OVERRIDE_MCS(3); | |
3194 | OVERRIDE_MCS(4); | |
3195 | OVERRIDE_MCS(5); | |
3196 | OVERRIDE_MCS(6); | |
3197 | OVERRIDE_MCS(7); | |
3198 | OVERRIDE_MCS(8); | |
3199 | } | |
3200 | #endif /* CONFIG_VHT_OVERRIDES */ | |
3201 | ||
3202 | ||
3203 | static int pcsc_reader_init(struct wpa_supplicant *wpa_s) | |
3204 | { | |
3205 | #ifdef PCSC_FUNCS | |
3206 | size_t len; | |
3207 | ||
3208 | if (!wpa_s->conf->pcsc_reader) | |
3209 | return 0; | |
3210 | ||
3211 | wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader); | |
3212 | if (!wpa_s->scard) | |
3213 | return 1; | |
3214 | ||
3215 | if (wpa_s->conf->pcsc_pin && | |
3216 | scard_set_pin(wpa_s->scard, wpa_s->conf->pcsc_pin) < 0) { | |
3217 | scard_deinit(wpa_s->scard); | |
3218 | wpa_s->scard = NULL; | |
3219 | wpa_msg(wpa_s, MSG_ERROR, "PC/SC PIN validation failed"); | |
3220 | return -1; | |
3221 | } | |
3222 | ||
3223 | len = sizeof(wpa_s->imsi) - 1; | |
3224 | if (scard_get_imsi(wpa_s->scard, wpa_s->imsi, &len)) { | |
3225 | scard_deinit(wpa_s->scard); | |
3226 | wpa_s->scard = NULL; | |
3227 | wpa_msg(wpa_s, MSG_ERROR, "Could not read IMSI"); | |
3228 | return -1; | |
3229 | } | |
3230 | wpa_s->imsi[len] = '\0'; | |
3231 | ||
3232 | wpa_s->mnc_len = scard_get_mnc_len(wpa_s->scard); | |
3233 | ||
3234 | wpa_printf(MSG_DEBUG, "SCARD: IMSI %s (MNC length %d)", | |
3235 | wpa_s->imsi, wpa_s->mnc_len); | |
3236 | ||
3237 | wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard); | |
3238 | eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard); | |
3239 | #endif /* PCSC_FUNCS */ | |
3240 | ||
3241 | return 0; | |
3242 | } | |
3243 | ||
3244 | ||
3245 | int wpas_init_ext_pw(struct wpa_supplicant *wpa_s) | |
3246 | { | |
3247 | char *val, *pos; | |
3248 | ||
3249 | ext_password_deinit(wpa_s->ext_pw); | |
3250 | wpa_s->ext_pw = NULL; | |
3251 | eapol_sm_set_ext_pw_ctx(wpa_s->eapol, NULL); | |
3252 | ||
3253 | if (!wpa_s->conf->ext_password_backend) | |
3254 | return 0; | |
3255 | ||
3256 | val = os_strdup(wpa_s->conf->ext_password_backend); | |
3257 | if (val == NULL) | |
3258 | return -1; | |
3259 | pos = os_strchr(val, ':'); | |
3260 | if (pos) | |
3261 | *pos++ = '\0'; | |
3262 | ||
3263 | wpa_printf(MSG_DEBUG, "EXT PW: Initialize backend '%s'", val); | |
3264 | ||
3265 | wpa_s->ext_pw = ext_password_init(val, pos); | |
3266 | os_free(val); | |
3267 | if (wpa_s->ext_pw == NULL) { | |
3268 | wpa_printf(MSG_DEBUG, "EXT PW: Failed to initialize backend"); | |
3269 | return -1; | |
3270 | } | |
3271 | eapol_sm_set_ext_pw_ctx(wpa_s->eapol, wpa_s->ext_pw); | |
3272 | ||
3273 | return 0; | |
3274 | } | |
3275 | ||
3276 | ||
3277 | static int wpas_check_wowlan_trigger(const char *start, const char *trigger, | |
3278 | int capa_trigger, u8 *param_trigger) | |
3279 | { | |
3280 | if (os_strcmp(start, trigger) != 0) | |
3281 | return 0; | |
3282 | if (!capa_trigger) | |
3283 | return 0; | |
3284 | ||
3285 | *param_trigger = 1; | |
3286 | return 1; | |
3287 | } | |
3288 | ||
3289 | ||
3290 | static int wpas_set_wowlan_triggers(struct wpa_supplicant *wpa_s, | |
3291 | const struct wpa_driver_capa *capa) | |
3292 | { | |
3293 | struct wowlan_triggers triggers; | |
3294 | char *start, *end, *buf; | |
3295 | int last, ret; | |
3296 | ||
3297 | if (!wpa_s->conf->wowlan_triggers) | |
3298 | return 0; | |
3299 | ||
3300 | buf = os_strdup(wpa_s->conf->wowlan_triggers); | |
3301 | if (buf == NULL) | |
3302 | return -1; | |
3303 | ||
3304 | os_memset(&triggers, 0, sizeof(triggers)); | |
3305 | ||
3306 | #define CHECK_TRIGGER(trigger) \ | |
3307 | wpas_check_wowlan_trigger(start, #trigger, \ | |
3308 | capa->wowlan_triggers.trigger, \ | |
3309 | &triggers.trigger) | |
3310 | ||
3311 | start = buf; | |
3312 | while (*start != '\0') { | |
3313 | while (isblank(*start)) | |
3314 | start++; | |
3315 | if (*start == '\0') | |
3316 | break; | |
3317 | end = start; | |
3318 | while (!isblank(*end) && *end != '\0') | |
3319 | end++; | |
3320 | last = *end == '\0'; | |
3321 | *end = '\0'; | |
3322 | ||
3323 | if (!CHECK_TRIGGER(any) && | |
3324 | !CHECK_TRIGGER(disconnect) && | |
3325 | !CHECK_TRIGGER(magic_pkt) && | |
3326 | !CHECK_TRIGGER(gtk_rekey_failure) && | |
3327 | !CHECK_TRIGGER(eap_identity_req) && | |
3328 | !CHECK_TRIGGER(four_way_handshake) && | |
3329 | !CHECK_TRIGGER(rfkill_release)) { | |
3330 | wpa_printf(MSG_DEBUG, | |
3331 | "Unknown/unsupported wowlan trigger '%s'", | |
3332 | start); | |
3333 | ret = -1; | |
3334 | goto out; | |
3335 | } | |
3336 | ||
3337 | if (last) | |
3338 | break; | |
3339 | start = end + 1; | |
3340 | } | |
3341 | #undef CHECK_TRIGGER | |
3342 | ||
3343 | ret = wpa_drv_wowlan(wpa_s, &triggers); | |
3344 | out: | |
3345 | os_free(buf); | |
3346 | return ret; | |
3347 | } | |
3348 | ||
3349 | ||
3350 | static struct wpa_radio * radio_add_interface(struct wpa_supplicant *wpa_s, | |
3351 | const char *rn) | |
3352 | { | |
3353 | struct wpa_supplicant *iface = wpa_s->global->ifaces; | |
3354 | struct wpa_radio *radio; | |
3355 | ||
3356 | while (rn && iface) { | |
3357 | radio = iface->radio; | |
3358 | if (radio && os_strcmp(rn, radio->name) == 0) { | |
3359 | wpa_printf(MSG_DEBUG, "Add interface %s to existing radio %s", | |
3360 | wpa_s->ifname, rn); | |
3361 | dl_list_add(&radio->ifaces, &wpa_s->radio_list); | |
3362 | return radio; | |
3363 | } | |
3364 | ||
3365 | iface = iface->next; | |
3366 | } | |
3367 | ||
3368 | wpa_printf(MSG_DEBUG, "Add interface %s to a new radio %s", | |
3369 | wpa_s->ifname, rn ? rn : "N/A"); | |
3370 | radio = os_zalloc(sizeof(*radio)); | |
3371 | if (radio == NULL) | |
3372 | return NULL; | |
3373 | ||
3374 | if (rn) | |
3375 | os_strlcpy(radio->name, rn, sizeof(radio->name)); | |
3376 | dl_list_init(&radio->ifaces); | |
3377 | dl_list_init(&radio->work); | |
3378 | dl_list_add(&radio->ifaces, &wpa_s->radio_list); | |
3379 | ||
3380 | return radio; | |
3381 | } | |
3382 | ||
3383 | ||
3384 | static void radio_work_free(struct wpa_radio_work *work) | |
3385 | { | |
3386 | if (work->wpa_s->scan_work == work) { | |
3387 | /* This should not really happen. */ | |
3388 | wpa_dbg(work->wpa_s, MSG_INFO, "Freeing radio work '%s'@%p (started=%d) that is marked as scan_work", | |
3389 | work->type, work, work->started); | |
3390 | work->wpa_s->scan_work = NULL; | |
3391 | } | |
3392 | ||
3393 | #ifdef CONFIG_P2P | |
3394 | if (work->wpa_s->p2p_scan_work == work) { | |
3395 | /* This should not really happen. */ | |
3396 | wpa_dbg(work->wpa_s, MSG_INFO, "Freeing radio work '%s'@%p (started=%d) that is marked as p2p_scan_work", | |
3397 | work->type, work, work->started); | |
3398 | work->wpa_s->p2p_scan_work = NULL; | |
3399 | } | |
3400 | #endif /* CONFIG_P2P */ | |
3401 | ||
3402 | dl_list_del(&work->list); | |
3403 | os_free(work); | |
3404 | } | |
3405 | ||
3406 | ||
3407 | static void radio_start_next_work(void *eloop_ctx, void *timeout_ctx) | |
3408 | { | |
3409 | struct wpa_radio *radio = eloop_ctx; | |
3410 | struct wpa_radio_work *work; | |
3411 | struct os_reltime now, diff; | |
3412 | struct wpa_supplicant *wpa_s; | |
3413 | ||
3414 | work = dl_list_first(&radio->work, struct wpa_radio_work, list); | |
3415 | if (work == NULL) | |
3416 | return; | |
3417 | ||
3418 | if (work->started) | |
3419 | return; /* already started and still in progress */ | |
3420 | ||
3421 | wpa_s = dl_list_first(&radio->ifaces, struct wpa_supplicant, | |
3422 | radio_list); | |
3423 | if (wpa_s && wpa_s->external_scan_running) { | |
3424 | wpa_printf(MSG_DEBUG, "Delay radio work start until externally triggered scan completes"); | |
3425 | return; | |
3426 | } | |
3427 | ||
3428 | os_get_reltime(&now); | |
3429 | os_reltime_sub(&now, &work->time, &diff); | |
3430 | wpa_dbg(work->wpa_s, MSG_DEBUG, "Starting radio work '%s'@%p after %ld.%06ld second wait", | |
3431 | work->type, work, diff.sec, diff.usec); | |
3432 | work->started = 1; | |
3433 | work->time = now; | |
3434 | work->cb(work, 0); | |
3435 | } | |
3436 | ||
3437 | ||
3438 | /* | |
3439 | * This function removes both started and pending radio works running on | |
3440 | * the provided interface's radio. | |
3441 | * Prior to the removal of the radio work, its callback (cb) is called with | |
3442 | * deinit set to be 1. Each work's callback is responsible for clearing its | |
3443 | * internal data and restoring to a correct state. | |
3444 | * @wpa_s: wpa_supplicant data | |
3445 | * @type: type of works to be removed | |
3446 | * @remove_all: 1 to remove all the works on this radio, 0 to remove only | |
3447 | * this interface's works. | |
3448 | */ | |
3449 | void radio_remove_works(struct wpa_supplicant *wpa_s, | |
3450 | const char *type, int remove_all) | |
3451 | { | |
3452 | struct wpa_radio_work *work, *tmp; | |
3453 | struct wpa_radio *radio = wpa_s->radio; | |
3454 | ||
3455 | dl_list_for_each_safe(work, tmp, &radio->work, struct wpa_radio_work, | |
3456 | list) { | |
3457 | if (type && os_strcmp(type, work->type) != 0) | |
3458 | continue; | |
3459 | ||
3460 | /* skip other ifaces' works */ | |
3461 | if (!remove_all && work->wpa_s != wpa_s) | |
3462 | continue; | |
3463 | ||
3464 | wpa_dbg(wpa_s, MSG_DEBUG, "Remove radio work '%s'@%p%s", | |
3465 | work->type, work, work->started ? " (started)" : ""); | |
3466 | work->cb(work, 1); | |
3467 | radio_work_free(work); | |
3468 | } | |
3469 | ||
3470 | /* in case we removed the started work */ | |
3471 | radio_work_check_next(wpa_s); | |
3472 | } | |
3473 | ||
3474 | ||
3475 | static void radio_remove_interface(struct wpa_supplicant *wpa_s) | |
3476 | { | |
3477 | struct wpa_radio *radio = wpa_s->radio; | |
3478 | ||
3479 | if (!radio) | |
3480 | return; | |
3481 | ||
3482 | wpa_printf(MSG_DEBUG, "Remove interface %s from radio %s", | |
3483 | wpa_s->ifname, radio->name); | |
3484 | dl_list_del(&wpa_s->radio_list); | |
3485 | radio_remove_works(wpa_s, NULL, 0); | |
3486 | wpa_s->radio = NULL; | |
3487 | if (!dl_list_empty(&radio->ifaces)) | |
3488 | return; /* Interfaces remain for this radio */ | |
3489 | ||
3490 | wpa_printf(MSG_DEBUG, "Remove radio %s", radio->name); | |
3491 | eloop_cancel_timeout(radio_start_next_work, radio, NULL); | |
3492 | os_free(radio); | |
3493 | } | |
3494 | ||
3495 | ||
3496 | void radio_work_check_next(struct wpa_supplicant *wpa_s) | |
3497 | { | |
3498 | struct wpa_radio *radio = wpa_s->radio; | |
3499 | ||
3500 | if (dl_list_empty(&radio->work)) | |
3501 | return; | |
3502 | eloop_cancel_timeout(radio_start_next_work, radio, NULL); | |
3503 | eloop_register_timeout(0, 0, radio_start_next_work, radio, NULL); | |
3504 | } | |
3505 | ||
3506 | ||
3507 | /** | |
3508 | * radio_add_work - Add a radio work item | |
3509 | * @wpa_s: Pointer to wpa_supplicant data | |
3510 | * @freq: Frequency of the offchannel operation in MHz or 0 | |
3511 | * @type: Unique identifier for each type of work | |
3512 | * @next: Force as the next work to be executed | |
3513 | * @cb: Callback function for indicating when radio is available | |
3514 | * @ctx: Context pointer for the work (work->ctx in cb()) | |
3515 | * Returns: 0 on success, -1 on failure | |
3516 | * | |
3517 | * This function is used to request time for an operation that requires | |
3518 | * exclusive radio control. Once the radio is available, the registered callback | |
3519 | * function will be called. radio_work_done() must be called once the exclusive | |
3520 | * radio operation has been completed, so that the radio is freed for other | |
3521 | * operations. The special case of deinit=1 is used to free the context data | |
3522 | * during interface removal. That does not allow the callback function to start | |
3523 | * the radio operation, i.e., it must free any resources allocated for the radio | |
3524 | * work and return. | |
3525 | * | |
3526 | * The @freq parameter can be used to indicate a single channel on which the | |
3527 | * offchannel operation will occur. This may allow multiple radio work | |
3528 | * operations to be performed in parallel if they apply for the same channel. | |
3529 | * Setting this to 0 indicates that the work item may use multiple channels or | |
3530 | * requires exclusive control of the radio. | |
3531 | */ | |
3532 | int radio_add_work(struct wpa_supplicant *wpa_s, unsigned int freq, | |
3533 | const char *type, int next, | |
3534 | void (*cb)(struct wpa_radio_work *work, int deinit), | |
3535 | void *ctx) | |
3536 | { | |
3537 | struct wpa_radio_work *work; | |
3538 | int was_empty; | |
3539 | ||
3540 | work = os_zalloc(sizeof(*work)); | |
3541 | if (work == NULL) | |
3542 | return -1; | |
3543 | wpa_dbg(wpa_s, MSG_DEBUG, "Add radio work '%s'@%p", type, work); | |
3544 | os_get_reltime(&work->time); | |
3545 | work->freq = freq; | |
3546 | work->type = type; | |
3547 | work->wpa_s = wpa_s; | |
3548 | work->cb = cb; | |
3549 | work->ctx = ctx; | |
3550 | ||
3551 | was_empty = dl_list_empty(&wpa_s->radio->work); | |
3552 | if (next) | |
3553 | dl_list_add(&wpa_s->radio->work, &work->list); | |
3554 | else | |
3555 | dl_list_add_tail(&wpa_s->radio->work, &work->list); | |
3556 | if (was_empty) { | |
3557 | wpa_dbg(wpa_s, MSG_DEBUG, "First radio work item in the queue - schedule start immediately"); | |
3558 | radio_work_check_next(wpa_s); | |
3559 | } | |
3560 | ||
3561 | return 0; | |
3562 | } | |
3563 | ||
3564 | ||
3565 | /** | |
3566 | * radio_work_done - Indicate that a radio work item has been completed | |
3567 | * @work: Completed work | |
3568 | * | |
3569 | * This function is called once the callback function registered with | |
3570 | * radio_add_work() has completed its work. | |
3571 | */ | |
3572 | void radio_work_done(struct wpa_radio_work *work) | |
3573 | { | |
3574 | struct wpa_supplicant *wpa_s = work->wpa_s; | |
3575 | struct os_reltime now, diff; | |
3576 | unsigned int started = work->started; | |
3577 | ||
3578 | os_get_reltime(&now); | |
3579 | os_reltime_sub(&now, &work->time, &diff); | |
3580 | wpa_dbg(wpa_s, MSG_DEBUG, "Radio work '%s'@%p %s in %ld.%06ld seconds", | |
3581 | work->type, work, started ? "done" : "canceled", | |
3582 | diff.sec, diff.usec); | |
3583 | radio_work_free(work); | |
3584 | if (started) | |
3585 | radio_work_check_next(wpa_s); | |
3586 | } | |
3587 | ||
3588 | ||
3589 | int radio_work_pending(struct wpa_supplicant *wpa_s, const char *type) | |
3590 | { | |
3591 | struct wpa_radio_work *work; | |
3592 | struct wpa_radio *radio = wpa_s->radio; | |
3593 | ||
3594 | dl_list_for_each(work, &radio->work, struct wpa_radio_work, list) { | |
3595 | if (work->wpa_s == wpa_s && os_strcmp(work->type, type) == 0) | |
3596 | return 1; | |
3597 | } | |
3598 | ||
3599 | return 0; | |
3600 | } | |
3601 | ||
3602 | ||
3603 | static int wpas_init_driver(struct wpa_supplicant *wpa_s, | |
3604 | struct wpa_interface *iface) | |
3605 | { | |
3606 | const char *ifname, *driver, *rn; | |
3607 | ||
3608 | driver = iface->driver; | |
3609 | next_driver: | |
3610 | if (wpa_supplicant_set_driver(wpa_s, driver) < 0) | |
3611 | return -1; | |
3612 | ||
3613 | wpa_s->drv_priv = wpa_drv_init(wpa_s, wpa_s->ifname); | |
3614 | if (wpa_s->drv_priv == NULL) { | |
3615 | const char *pos; | |
3616 | pos = driver ? os_strchr(driver, ',') : NULL; | |
3617 | if (pos) { | |
3618 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize " | |
3619 | "driver interface - try next driver wrapper"); | |
3620 | driver = pos + 1; | |
3621 | goto next_driver; | |
3622 | } | |
3623 | wpa_msg(wpa_s, MSG_ERROR, "Failed to initialize driver " | |
3624 | "interface"); | |
3625 | return -1; | |
3626 | } | |
3627 | if (wpa_drv_set_param(wpa_s, wpa_s->conf->driver_param) < 0) { | |
3628 | wpa_msg(wpa_s, MSG_ERROR, "Driver interface rejected " | |
3629 | "driver_param '%s'", wpa_s->conf->driver_param); | |
3630 | return -1; | |
3631 | } | |
3632 | ||
3633 | ifname = wpa_drv_get_ifname(wpa_s); | |
3634 | if (ifname && os_strcmp(ifname, wpa_s->ifname) != 0) { | |
3635 | wpa_dbg(wpa_s, MSG_DEBUG, "Driver interface replaced " | |
3636 | "interface name with '%s'", ifname); | |
3637 | os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname)); | |
3638 | } | |
3639 | ||
3640 | rn = wpa_driver_get_radio_name(wpa_s); | |
3641 | if (rn && rn[0] == '\0') | |
3642 | rn = NULL; | |
3643 | ||
3644 | wpa_s->radio = radio_add_interface(wpa_s, rn); | |
3645 | if (wpa_s->radio == NULL) | |
3646 | return -1; | |
3647 | ||
3648 | return 0; | |
3649 | } | |
3650 | ||
3651 | ||
3652 | static int wpa_supplicant_init_iface(struct wpa_supplicant *wpa_s, | |
3653 | struct wpa_interface *iface) | |
3654 | { | |
3655 | struct wpa_driver_capa capa; | |
3656 | int capa_res; | |
3657 | ||
3658 | wpa_printf(MSG_DEBUG, "Initializing interface '%s' conf '%s' driver " | |
3659 | "'%s' ctrl_interface '%s' bridge '%s'", iface->ifname, | |
3660 | iface->confname ? iface->confname : "N/A", | |
3661 | iface->driver ? iface->driver : "default", | |
3662 | iface->ctrl_interface ? iface->ctrl_interface : "N/A", | |
3663 | iface->bridge_ifname ? iface->bridge_ifname : "N/A"); | |
3664 | ||
3665 | if (iface->confname) { | |
3666 | #ifdef CONFIG_BACKEND_FILE | |
3667 | wpa_s->confname = os_rel2abs_path(iface->confname); | |
3668 | if (wpa_s->confname == NULL) { | |
3669 | wpa_printf(MSG_ERROR, "Failed to get absolute path " | |
3670 | "for configuration file '%s'.", | |
3671 | iface->confname); | |
3672 | return -1; | |
3673 | } | |
3674 | wpa_printf(MSG_DEBUG, "Configuration file '%s' -> '%s'", | |
3675 | iface->confname, wpa_s->confname); | |
3676 | #else /* CONFIG_BACKEND_FILE */ | |
3677 | wpa_s->confname = os_strdup(iface->confname); | |
3678 | #endif /* CONFIG_BACKEND_FILE */ | |
3679 | wpa_s->conf = wpa_config_read(wpa_s->confname, NULL); | |
3680 | if (wpa_s->conf == NULL) { | |
3681 | wpa_printf(MSG_ERROR, "Failed to read or parse " | |
3682 | "configuration '%s'.", wpa_s->confname); | |
3683 | return -1; | |
3684 | } | |
3685 | wpa_s->confanother = os_rel2abs_path(iface->confanother); | |
3686 | wpa_config_read(wpa_s->confanother, wpa_s->conf); | |
3687 | ||
3688 | /* | |
3689 | * Override ctrl_interface and driver_param if set on command | |
3690 | * line. | |
3691 | */ | |
3692 | if (iface->ctrl_interface) { | |
3693 | os_free(wpa_s->conf->ctrl_interface); | |
3694 | wpa_s->conf->ctrl_interface = | |
3695 | os_strdup(iface->ctrl_interface); | |
3696 | } | |
3697 | ||
3698 | if (iface->driver_param) { | |
3699 | os_free(wpa_s->conf->driver_param); | |
3700 | wpa_s->conf->driver_param = | |
3701 | os_strdup(iface->driver_param); | |
3702 | } | |
3703 | ||
3704 | if (iface->p2p_mgmt && !iface->ctrl_interface) { | |
3705 | os_free(wpa_s->conf->ctrl_interface); | |
3706 | wpa_s->conf->ctrl_interface = NULL; | |
3707 | } | |
3708 | } else | |
3709 | wpa_s->conf = wpa_config_alloc_empty(iface->ctrl_interface, | |
3710 | iface->driver_param); | |
3711 | ||
3712 | if (wpa_s->conf == NULL) { | |
3713 | wpa_printf(MSG_ERROR, "\nNo configuration found."); | |
3714 | return -1; | |
3715 | } | |
3716 | ||
3717 | if (iface->ifname == NULL) { | |
3718 | wpa_printf(MSG_ERROR, "\nInterface name is required."); | |
3719 | return -1; | |
3720 | } | |
3721 | if (os_strlen(iface->ifname) >= sizeof(wpa_s->ifname)) { | |
3722 | wpa_printf(MSG_ERROR, "\nToo long interface name '%s'.", | |
3723 | iface->ifname); | |
3724 | return -1; | |
3725 | } | |
3726 | os_strlcpy(wpa_s->ifname, iface->ifname, sizeof(wpa_s->ifname)); | |
3727 | ||
3728 | if (iface->bridge_ifname) { | |
3729 | if (os_strlen(iface->bridge_ifname) >= | |
3730 | sizeof(wpa_s->bridge_ifname)) { | |
3731 | wpa_printf(MSG_ERROR, "\nToo long bridge interface " | |
3732 | "name '%s'.", iface->bridge_ifname); | |
3733 | return -1; | |
3734 | } | |
3735 | os_strlcpy(wpa_s->bridge_ifname, iface->bridge_ifname, | |
3736 | sizeof(wpa_s->bridge_ifname)); | |
3737 | } | |
3738 | ||
3739 | /* RSNA Supplicant Key Management - INITIALIZE */ | |
3740 | eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); | |
3741 | eapol_sm_notify_portValid(wpa_s->eapol, FALSE); | |
3742 | ||
3743 | /* Initialize driver interface and register driver event handler before | |
3744 | * L2 receive handler so that association events are processed before | |
3745 | * EAPOL-Key packets if both become available for the same select() | |
3746 | * call. */ | |
3747 | if (wpas_init_driver(wpa_s, iface) < 0) | |
3748 | return -1; | |
3749 | ||
3750 | if (wpa_supplicant_init_wpa(wpa_s) < 0) | |
3751 | return -1; | |
3752 | ||
3753 | wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname, | |
3754 | wpa_s->bridge_ifname[0] ? wpa_s->bridge_ifname : | |
3755 | NULL); | |
3756 | wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); | |
3757 | ||
3758 | if (wpa_s->conf->dot11RSNAConfigPMKLifetime && | |
3759 | wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME, | |
3760 | wpa_s->conf->dot11RSNAConfigPMKLifetime)) { | |
3761 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " | |
3762 | "dot11RSNAConfigPMKLifetime"); | |
3763 | return -1; | |
3764 | } | |
3765 | ||
3766 | if (wpa_s->conf->dot11RSNAConfigPMKReauthThreshold && | |
3767 | wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD, | |
3768 | wpa_s->conf->dot11RSNAConfigPMKReauthThreshold)) { | |
3769 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " | |
3770 | "dot11RSNAConfigPMKReauthThreshold"); | |
3771 | return -1; | |
3772 | } | |
3773 | ||
3774 | if (wpa_s->conf->dot11RSNAConfigSATimeout && | |
3775 | wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT, | |
3776 | wpa_s->conf->dot11RSNAConfigSATimeout)) { | |
3777 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " | |
3778 | "dot11RSNAConfigSATimeout"); | |
3779 | return -1; | |
3780 | } | |
3781 | ||
3782 | wpa_s->hw.modes = wpa_drv_get_hw_feature_data(wpa_s, | |
3783 | &wpa_s->hw.num_modes, | |
3784 | &wpa_s->hw.flags); | |
3785 | ||
3786 | capa_res = wpa_drv_get_capa(wpa_s, &capa); | |
3787 | if (capa_res == 0) { | |
3788 | wpa_s->drv_capa_known = 1; | |
3789 | wpa_s->drv_flags = capa.flags; | |
3790 | wpa_s->drv_enc = capa.enc; | |
3791 | wpa_s->probe_resp_offloads = capa.probe_resp_offloads; | |
3792 | wpa_s->max_scan_ssids = capa.max_scan_ssids; | |
3793 | wpa_s->max_sched_scan_ssids = capa.max_sched_scan_ssids; | |
3794 | wpa_s->sched_scan_supported = capa.sched_scan_supported; | |
3795 | wpa_s->max_match_sets = capa.max_match_sets; | |
3796 | wpa_s->max_remain_on_chan = capa.max_remain_on_chan; | |
3797 | wpa_s->max_stations = capa.max_stations; | |
3798 | wpa_s->extended_capa = capa.extended_capa; | |
3799 | wpa_s->extended_capa_mask = capa.extended_capa_mask; | |
3800 | wpa_s->extended_capa_len = capa.extended_capa_len; | |
3801 | wpa_s->num_multichan_concurrent = | |
3802 | capa.num_multichan_concurrent; | |
3803 | } | |
3804 | if (wpa_s->max_remain_on_chan == 0) | |
3805 | wpa_s->max_remain_on_chan = 1000; | |
3806 | ||
3807 | /* | |
3808 | * Only take p2p_mgmt parameters when P2P Device is supported. | |
3809 | * Doing it here as it determines whether l2_packet_init() will be done | |
3810 | * during wpa_supplicant_driver_init(). | |
3811 | */ | |
3812 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) | |
3813 | wpa_s->p2p_mgmt = iface->p2p_mgmt; | |
3814 | else | |
3815 | iface->p2p_mgmt = 1; | |
3816 | ||
3817 | if (wpa_s->num_multichan_concurrent == 0) | |
3818 | wpa_s->num_multichan_concurrent = 1; | |
3819 | ||
3820 | if (wpa_supplicant_driver_init(wpa_s) < 0) | |
3821 | return -1; | |
3822 | ||
3823 | #ifdef CONFIG_TDLS | |
3824 | if ((!iface->p2p_mgmt || | |
3825 | !(wpa_s->drv_flags & | |
3826 | WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) && | |
3827 | wpa_tdls_init(wpa_s->wpa)) | |
3828 | return -1; | |
3829 | #endif /* CONFIG_TDLS */ | |
3830 | ||
3831 | if (wpa_s->conf->country[0] && wpa_s->conf->country[1] && | |
3832 | wpa_drv_set_country(wpa_s, wpa_s->conf->country)) { | |
3833 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to set country"); | |
3834 | return -1; | |
3835 | } | |
3836 | ||
3837 | if (wpas_wps_init(wpa_s)) | |
3838 | return -1; | |
3839 | ||
3840 | if (wpa_supplicant_init_eapol(wpa_s) < 0) | |
3841 | return -1; | |
3842 | wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol); | |
3843 | ||
3844 | wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); | |
3845 | if (wpa_s->ctrl_iface == NULL) { | |
3846 | wpa_printf(MSG_ERROR, | |
3847 | "Failed to initialize control interface '%s'.\n" | |
3848 | "You may have another wpa_supplicant process " | |
3849 | "already running or the file was\n" | |
3850 | "left by an unclean termination of wpa_supplicant " | |
3851 | "in which case you will need\n" | |
3852 | "to manually remove this file before starting " | |
3853 | "wpa_supplicant again.\n", | |
3854 | wpa_s->conf->ctrl_interface); | |
3855 | return -1; | |
3856 | } | |
3857 | ||
3858 | wpa_s->gas = gas_query_init(wpa_s); | |
3859 | if (wpa_s->gas == NULL) { | |
3860 | wpa_printf(MSG_ERROR, "Failed to initialize GAS query"); | |
3861 | return -1; | |
3862 | } | |
3863 | ||
3864 | if (iface->p2p_mgmt && wpas_p2p_init(wpa_s->global, wpa_s) < 0) { | |
3865 | wpa_msg(wpa_s, MSG_ERROR, "Failed to init P2P"); | |
3866 | return -1; | |
3867 | } | |
3868 | ||
3869 | if (wpa_bss_init(wpa_s) < 0) | |
3870 | return -1; | |
3871 | ||
3872 | /* | |
3873 | * Set Wake-on-WLAN triggers, if configured. | |
3874 | * Note: We don't restore/remove the triggers on shutdown (it doesn't | |
3875 | * have effect anyway when the interface is down). | |
3876 | */ | |
3877 | if (capa_res == 0 && wpas_set_wowlan_triggers(wpa_s, &capa) < 0) | |
3878 | return -1; | |
3879 | ||
3880 | #ifdef CONFIG_EAP_PROXY | |
3881 | { | |
3882 | size_t len; | |
3883 | wpa_s->mnc_len = eapol_sm_get_eap_proxy_imsi(wpa_s->eapol, wpa_s->imsi, | |
3884 | &len); | |
3885 | if (wpa_s->mnc_len > 0) { | |
3886 | wpa_s->imsi[len] = '\0'; | |
3887 | wpa_printf(MSG_DEBUG, "eap_proxy: IMSI %s (MNC length %d)", | |
3888 | wpa_s->imsi, wpa_s->mnc_len); | |
3889 | } else { | |
3890 | wpa_printf(MSG_DEBUG, "eap_proxy: IMSI not available"); | |
3891 | } | |
3892 | } | |
3893 | #endif /* CONFIG_EAP_PROXY */ | |
3894 | ||
3895 | if (pcsc_reader_init(wpa_s) < 0) | |
3896 | return -1; | |
3897 | ||
3898 | if (wpas_init_ext_pw(wpa_s) < 0) | |
3899 | return -1; | |
3900 | ||
3901 | return 0; | |
3902 | } | |
3903 | ||
3904 | ||
3905 | static void wpa_supplicant_deinit_iface(struct wpa_supplicant *wpa_s, | |
3906 | int notify, int terminate) | |
3907 | { | |
3908 | wpa_s->disconnected = 1; | |
3909 | if (wpa_s->drv_priv) { | |
3910 | wpa_supplicant_deauthenticate(wpa_s, | |
3911 | WLAN_REASON_DEAUTH_LEAVING); | |
3912 | ||
3913 | wpa_drv_set_countermeasures(wpa_s, 0); | |
3914 | wpa_clear_keys(wpa_s, NULL); | |
3915 | } | |
3916 | ||
3917 | wpa_supplicant_cleanup(wpa_s); | |
3918 | wpas_p2p_deinit_iface(wpa_s); | |
3919 | ||
3920 | wpas_ctrl_radio_work_flush(wpa_s); | |
3921 | radio_remove_interface(wpa_s); | |
3922 | ||
3923 | if (wpa_s->drv_priv) | |
3924 | wpa_drv_deinit(wpa_s); | |
3925 | ||
3926 | if (notify) | |
3927 | wpas_notify_iface_removed(wpa_s); | |
3928 | ||
3929 | if (terminate) | |
3930 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TERMINATING); | |
3931 | ||
3932 | if (wpa_s->ctrl_iface) { | |
3933 | wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); | |
3934 | wpa_s->ctrl_iface = NULL; | |
3935 | } | |
3936 | ||
3937 | if (wpa_s->conf != NULL) { | |
3938 | wpa_config_free(wpa_s->conf); | |
3939 | wpa_s->conf = NULL; | |
3940 | } | |
3941 | ||
3942 | os_free(wpa_s); | |
3943 | } | |
3944 | ||
3945 | ||
3946 | /** | |
3947 | * wpa_supplicant_add_iface - Add a new network interface | |
3948 | * @global: Pointer to global data from wpa_supplicant_init() | |
3949 | * @iface: Interface configuration options | |
3950 | * Returns: Pointer to the created interface or %NULL on failure | |
3951 | * | |
3952 | * This function is used to add new network interfaces for %wpa_supplicant. | |
3953 | * This can be called before wpa_supplicant_run() to add interfaces before the | |
3954 | * main event loop has been started. In addition, new interfaces can be added | |
3955 | * dynamically while %wpa_supplicant is already running. This could happen, | |
3956 | * e.g., when a hotplug network adapter is inserted. | |
3957 | */ | |
3958 | struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global, | |
3959 | struct wpa_interface *iface) | |
3960 | { | |
3961 | struct wpa_supplicant *wpa_s; | |
3962 | struct wpa_interface t_iface; | |
3963 | struct wpa_ssid *ssid; | |
3964 | ||
3965 | if (global == NULL || iface == NULL) | |
3966 | return NULL; | |
3967 | ||
3968 | wpa_s = wpa_supplicant_alloc(); | |
3969 | if (wpa_s == NULL) | |
3970 | return NULL; | |
3971 | ||
3972 | wpa_s->global = global; | |
3973 | ||
3974 | t_iface = *iface; | |
3975 | if (global->params.override_driver) { | |
3976 | wpa_printf(MSG_DEBUG, "Override interface parameter: driver " | |
3977 | "('%s' -> '%s')", | |
3978 | iface->driver, global->params.override_driver); | |
3979 | t_iface.driver = global->params.override_driver; | |
3980 | } | |
3981 | if (global->params.override_ctrl_interface) { | |
3982 | wpa_printf(MSG_DEBUG, "Override interface parameter: " | |
3983 | "ctrl_interface ('%s' -> '%s')", | |
3984 | iface->ctrl_interface, | |
3985 | global->params.override_ctrl_interface); | |
3986 | t_iface.ctrl_interface = | |
3987 | global->params.override_ctrl_interface; | |
3988 | } | |
3989 | if (wpa_supplicant_init_iface(wpa_s, &t_iface)) { | |
3990 | wpa_printf(MSG_DEBUG, "Failed to add interface %s", | |
3991 | iface->ifname); | |
3992 | wpa_supplicant_deinit_iface(wpa_s, 0, 0); | |
3993 | return NULL; | |
3994 | } | |
3995 | ||
3996 | /* Notify the control interfaces about new iface */ | |
3997 | if (wpas_notify_iface_added(wpa_s)) { | |
3998 | wpa_supplicant_deinit_iface(wpa_s, 1, 0); | |
3999 | return NULL; | |
4000 | } | |
4001 | ||
4002 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) | |
4003 | wpas_notify_network_added(wpa_s, ssid); | |
4004 | ||
4005 | wpa_s->next = global->ifaces; | |
4006 | global->ifaces = wpa_s; | |
4007 | ||
4008 | wpa_dbg(wpa_s, MSG_DEBUG, "Added interface %s", wpa_s->ifname); | |
4009 | wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); | |
4010 | ||
4011 | return wpa_s; | |
4012 | } | |
4013 | ||
4014 | ||
4015 | /** | |
4016 | * wpa_supplicant_remove_iface - Remove a network interface | |
4017 | * @global: Pointer to global data from wpa_supplicant_init() | |
4018 | * @wpa_s: Pointer to the network interface to be removed | |
4019 | * Returns: 0 if interface was removed, -1 if interface was not found | |
4020 | * | |
4021 | * This function can be used to dynamically remove network interfaces from | |
4022 | * %wpa_supplicant, e.g., when a hotplug network adapter is ejected. In | |
4023 | * addition, this function is used to remove all remaining interfaces when | |
4024 | * %wpa_supplicant is terminated. | |
4025 | */ | |
4026 | int wpa_supplicant_remove_iface(struct wpa_global *global, | |
4027 | struct wpa_supplicant *wpa_s, | |
4028 | int terminate) | |
4029 | { | |
4030 | struct wpa_supplicant *prev; | |
4031 | ||
4032 | /* Remove interface from the global list of interfaces */ | |
4033 | prev = global->ifaces; | |
4034 | if (prev == wpa_s) { | |
4035 | global->ifaces = wpa_s->next; | |
4036 | } else { | |
4037 | while (prev && prev->next != wpa_s) | |
4038 | prev = prev->next; | |
4039 | if (prev == NULL) | |
4040 | return -1; | |
4041 | prev->next = wpa_s->next; | |
4042 | } | |
4043 | ||
4044 | wpa_dbg(wpa_s, MSG_DEBUG, "Removing interface %s", wpa_s->ifname); | |
4045 | ||
4046 | if (global->p2p_group_formation == wpa_s) | |
4047 | global->p2p_group_formation = NULL; | |
4048 | if (global->p2p_invite_group == wpa_s) | |
4049 | global->p2p_invite_group = NULL; | |
4050 | wpa_supplicant_deinit_iface(wpa_s, 1, terminate); | |
4051 | ||
4052 | return 0; | |
4053 | } | |
4054 | ||
4055 | ||
4056 | /** | |
4057 | * wpa_supplicant_get_eap_mode - Get the current EAP mode | |
4058 | * @wpa_s: Pointer to the network interface | |
4059 | * Returns: Pointer to the eap mode or the string "UNKNOWN" if not found | |
4060 | */ | |
4061 | const char * wpa_supplicant_get_eap_mode(struct wpa_supplicant *wpa_s) | |
4062 | { | |
4063 | const char *eapol_method; | |
4064 | ||
4065 | if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) == 0 && | |
4066 | wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
4067 | return "NO-EAP"; | |
4068 | } | |
4069 | ||
4070 | eapol_method = eapol_sm_get_method_name(wpa_s->eapol); | |
4071 | if (eapol_method == NULL) | |
4072 | return "UNKNOWN-EAP"; | |
4073 | ||
4074 | return eapol_method; | |
4075 | } | |
4076 | ||
4077 | ||
4078 | /** | |
4079 | * wpa_supplicant_get_iface - Get a new network interface | |
4080 | * @global: Pointer to global data from wpa_supplicant_init() | |
4081 | * @ifname: Interface name | |
4082 | * Returns: Pointer to the interface or %NULL if not found | |
4083 | */ | |
4084 | struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global, | |
4085 | const char *ifname) | |
4086 | { | |
4087 | struct wpa_supplicant *wpa_s; | |
4088 | ||
4089 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { | |
4090 | if (os_strcmp(wpa_s->ifname, ifname) == 0) | |
4091 | return wpa_s; | |
4092 | } | |
4093 | return NULL; | |
4094 | } | |
4095 | ||
4096 | ||
4097 | #ifndef CONFIG_NO_WPA_MSG | |
4098 | static const char * wpa_supplicant_msg_ifname_cb(void *ctx) | |
4099 | { | |
4100 | struct wpa_supplicant *wpa_s = ctx; | |
4101 | if (wpa_s == NULL) | |
4102 | return NULL; | |
4103 | return wpa_s->ifname; | |
4104 | } | |
4105 | #endif /* CONFIG_NO_WPA_MSG */ | |
4106 | ||
4107 | ||
4108 | /** | |
4109 | * wpa_supplicant_init - Initialize %wpa_supplicant | |
4110 | * @params: Parameters for %wpa_supplicant | |
4111 | * Returns: Pointer to global %wpa_supplicant data, or %NULL on failure | |
4112 | * | |
4113 | * This function is used to initialize %wpa_supplicant. After successful | |
4114 | * initialization, the returned data pointer can be used to add and remove | |
4115 | * network interfaces, and eventually, to deinitialize %wpa_supplicant. | |
4116 | */ | |
4117 | struct wpa_global * wpa_supplicant_init(struct wpa_params *params) | |
4118 | { | |
4119 | struct wpa_global *global; | |
4120 | int ret, i; | |
4121 | ||
4122 | if (params == NULL) | |
4123 | return NULL; | |
4124 | ||
4125 | #ifdef CONFIG_DRIVER_NDIS | |
4126 | { | |
4127 | void driver_ndis_init_ops(void); | |
4128 | driver_ndis_init_ops(); | |
4129 | } | |
4130 | #endif /* CONFIG_DRIVER_NDIS */ | |
4131 | ||
4132 | #ifndef CONFIG_NO_WPA_MSG | |
4133 | wpa_msg_register_ifname_cb(wpa_supplicant_msg_ifname_cb); | |
4134 | #endif /* CONFIG_NO_WPA_MSG */ | |
4135 | ||
4136 | wpa_debug_open_file(params->wpa_debug_file_path); | |
4137 | if (params->wpa_debug_syslog) | |
4138 | wpa_debug_open_syslog(); | |
4139 | if (params->wpa_debug_tracing) { | |
4140 | ret = wpa_debug_open_linux_tracing(); | |
4141 | if (ret) { | |
4142 | wpa_printf(MSG_ERROR, | |
4143 | "Failed to enable trace logging"); | |
4144 | return NULL; | |
4145 | } | |
4146 | } | |
4147 | ||
4148 | ret = eap_register_methods(); | |
4149 | if (ret) { | |
4150 | wpa_printf(MSG_ERROR, "Failed to register EAP methods"); | |
4151 | if (ret == -2) | |
4152 | wpa_printf(MSG_ERROR, "Two or more EAP methods used " | |
4153 | "the same EAP type."); | |
4154 | return NULL; | |
4155 | } | |
4156 | ||
4157 | global = os_zalloc(sizeof(*global)); | |
4158 | if (global == NULL) | |
4159 | return NULL; | |
4160 | dl_list_init(&global->p2p_srv_bonjour); | |
4161 | dl_list_init(&global->p2p_srv_upnp); | |
4162 | global->params.daemonize = params->daemonize; | |
4163 | global->params.wait_for_monitor = params->wait_for_monitor; | |
4164 | global->params.dbus_ctrl_interface = params->dbus_ctrl_interface; | |
4165 | if (params->pid_file) | |
4166 | global->params.pid_file = os_strdup(params->pid_file); | |
4167 | if (params->ctrl_interface) | |
4168 | global->params.ctrl_interface = | |
4169 | os_strdup(params->ctrl_interface); | |
4170 | if (params->ctrl_interface_group) | |
4171 | global->params.ctrl_interface_group = | |
4172 | os_strdup(params->ctrl_interface_group); | |
4173 | if (params->override_driver) | |
4174 | global->params.override_driver = | |
4175 | os_strdup(params->override_driver); | |
4176 | if (params->override_ctrl_interface) | |
4177 | global->params.override_ctrl_interface = | |
4178 | os_strdup(params->override_ctrl_interface); | |
4179 | wpa_debug_level = global->params.wpa_debug_level = | |
4180 | params->wpa_debug_level; | |
4181 | wpa_debug_show_keys = global->params.wpa_debug_show_keys = | |
4182 | params->wpa_debug_show_keys; | |
4183 | wpa_debug_timestamp = global->params.wpa_debug_timestamp = | |
4184 | params->wpa_debug_timestamp; | |
4185 | ||
4186 | wpa_printf(MSG_DEBUG, "wpa_supplicant v" VERSION_STR); | |
4187 | ||
4188 | if (eloop_init()) { | |
4189 | wpa_printf(MSG_ERROR, "Failed to initialize event loop"); | |
4190 | wpa_supplicant_deinit(global); | |
4191 | return NULL; | |
4192 | } | |
4193 | ||
4194 | random_init(params->entropy_file); | |
4195 | ||
4196 | global->ctrl_iface = wpa_supplicant_global_ctrl_iface_init(global); | |
4197 | if (global->ctrl_iface == NULL) { | |
4198 | wpa_supplicant_deinit(global); | |
4199 | return NULL; | |
4200 | } | |
4201 | ||
4202 | if (wpas_notify_supplicant_initialized(global)) { | |
4203 | wpa_supplicant_deinit(global); | |
4204 | return NULL; | |
4205 | } | |
4206 | ||
4207 | for (i = 0; wpa_drivers[i]; i++) | |
4208 | global->drv_count++; | |
4209 | if (global->drv_count == 0) { | |
4210 | wpa_printf(MSG_ERROR, "No drivers enabled"); | |
4211 | wpa_supplicant_deinit(global); | |
4212 | return NULL; | |
4213 | } | |
4214 | global->drv_priv = os_zalloc(global->drv_count * sizeof(void *)); | |
4215 | if (global->drv_priv == NULL) { | |
4216 | wpa_supplicant_deinit(global); | |
4217 | return NULL; | |
4218 | } | |
4219 | ||
4220 | #ifdef CONFIG_WIFI_DISPLAY | |
4221 | if (wifi_display_init(global) < 0) { | |
4222 | wpa_printf(MSG_ERROR, "Failed to initialize Wi-Fi Display"); | |
4223 | wpa_supplicant_deinit(global); | |
4224 | return NULL; | |
4225 | } | |
4226 | #endif /* CONFIG_WIFI_DISPLAY */ | |
4227 | ||
4228 | return global; | |
4229 | } | |
4230 | ||
4231 | ||
4232 | /** | |
4233 | * wpa_supplicant_run - Run the %wpa_supplicant main event loop | |
4234 | * @global: Pointer to global data from wpa_supplicant_init() | |
4235 | * Returns: 0 after successful event loop run, -1 on failure | |
4236 | * | |
4237 | * This function starts the main event loop and continues running as long as | |
4238 | * there are any remaining events. In most cases, this function is running as | |
4239 | * long as the %wpa_supplicant process in still in use. | |
4240 | */ | |
4241 | int wpa_supplicant_run(struct wpa_global *global) | |
4242 | { | |
4243 | struct wpa_supplicant *wpa_s; | |
4244 | ||
4245 | if (global->params.daemonize && | |
4246 | wpa_supplicant_daemon(global->params.pid_file)) | |
4247 | return -1; | |
4248 | ||
4249 | if (global->params.wait_for_monitor) { | |
4250 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) | |
4251 | if (wpa_s->ctrl_iface) | |
4252 | wpa_supplicant_ctrl_iface_wait( | |
4253 | wpa_s->ctrl_iface); | |
4254 | } | |
4255 | ||
4256 | eloop_register_signal_terminate(wpa_supplicant_terminate, global); | |
4257 | eloop_register_signal_reconfig(wpa_supplicant_reconfig, global); | |
4258 | ||
4259 | eloop_run(); | |
4260 | ||
4261 | return 0; | |
4262 | } | |
4263 | ||
4264 | ||
4265 | /** | |
4266 | * wpa_supplicant_deinit - Deinitialize %wpa_supplicant | |
4267 | * @global: Pointer to global data from wpa_supplicant_init() | |
4268 | * | |
4269 | * This function is called to deinitialize %wpa_supplicant and to free all | |
4270 | * allocated resources. Remaining network interfaces will also be removed. | |
4271 | */ | |
4272 | void wpa_supplicant_deinit(struct wpa_global *global) | |
4273 | { | |
4274 | int i; | |
4275 | ||
4276 | if (global == NULL) | |
4277 | return; | |
4278 | ||
4279 | #ifdef CONFIG_WIFI_DISPLAY | |
4280 | wifi_display_deinit(global); | |
4281 | #endif /* CONFIG_WIFI_DISPLAY */ | |
4282 | ||
4283 | while (global->ifaces) | |
4284 | wpa_supplicant_remove_iface(global, global->ifaces, 1); | |
4285 | ||
4286 | if (global->ctrl_iface) | |
4287 | wpa_supplicant_global_ctrl_iface_deinit(global->ctrl_iface); | |
4288 | ||
4289 | wpas_notify_supplicant_deinitialized(global); | |
4290 | ||
4291 | eap_peer_unregister_methods(); | |
4292 | #ifdef CONFIG_AP | |
4293 | eap_server_unregister_methods(); | |
4294 | #endif /* CONFIG_AP */ | |
4295 | ||
4296 | for (i = 0; wpa_drivers[i] && global->drv_priv; i++) { | |
4297 | if (!global->drv_priv[i]) | |
4298 | continue; | |
4299 | wpa_drivers[i]->global_deinit(global->drv_priv[i]); | |
4300 | } | |
4301 | os_free(global->drv_priv); | |
4302 | ||
4303 | random_deinit(); | |
4304 | ||
4305 | eloop_destroy(); | |
4306 | ||
4307 | if (global->params.pid_file) { | |
4308 | os_daemonize_terminate(global->params.pid_file); | |
4309 | os_free(global->params.pid_file); | |
4310 | } | |
4311 | os_free(global->params.ctrl_interface); | |
4312 | os_free(global->params.ctrl_interface_group); | |
4313 | os_free(global->params.override_driver); | |
4314 | os_free(global->params.override_ctrl_interface); | |
4315 | ||
4316 | os_free(global->p2p_disallow_freq.range); | |
4317 | os_free(global->p2p_go_avoid_freq.range); | |
4318 | os_free(global->add_psk); | |
4319 | ||
4320 | os_free(global); | |
4321 | wpa_debug_close_syslog(); | |
4322 | wpa_debug_close_file(); | |
4323 | wpa_debug_close_linux_tracing(); | |
4324 | } | |
4325 | ||
4326 | ||
4327 | void wpa_supplicant_update_config(struct wpa_supplicant *wpa_s) | |
4328 | { | |
4329 | if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) && | |
4330 | wpa_s->conf->country[0] && wpa_s->conf->country[1]) { | |
4331 | char country[3]; | |
4332 | country[0] = wpa_s->conf->country[0]; | |
4333 | country[1] = wpa_s->conf->country[1]; | |
4334 | country[2] = '\0'; | |
4335 | if (wpa_drv_set_country(wpa_s, country) < 0) { | |
4336 | wpa_printf(MSG_ERROR, "Failed to set country code " | |
4337 | "'%s'", country); | |
4338 | } | |
4339 | } | |
4340 | ||
4341 | if (wpa_s->conf->changed_parameters & CFG_CHANGED_EXT_PW_BACKEND) | |
4342 | wpas_init_ext_pw(wpa_s); | |
4343 | ||
4344 | #ifdef CONFIG_WPS | |
4345 | wpas_wps_update_config(wpa_s); | |
4346 | #endif /* CONFIG_WPS */ | |
4347 | wpas_p2p_update_config(wpa_s); | |
4348 | wpa_s->conf->changed_parameters = 0; | |
4349 | } | |
4350 | ||
4351 | ||
4352 | static void add_freq(int *freqs, int *num_freqs, int freq) | |
4353 | { | |
4354 | int i; | |
4355 | ||
4356 | for (i = 0; i < *num_freqs; i++) { | |
4357 | if (freqs[i] == freq) | |
4358 | return; | |
4359 | } | |
4360 | ||
4361 | freqs[*num_freqs] = freq; | |
4362 | (*num_freqs)++; | |
4363 | } | |
4364 | ||
4365 | ||
4366 | static int * get_bss_freqs_in_ess(struct wpa_supplicant *wpa_s) | |
4367 | { | |
4368 | struct wpa_bss *bss, *cbss; | |
4369 | const int max_freqs = 10; | |
4370 | int *freqs; | |
4371 | int num_freqs = 0; | |
4372 | ||
4373 | freqs = os_zalloc(sizeof(int) * (max_freqs + 1)); | |
4374 | if (freqs == NULL) | |
4375 | return NULL; | |
4376 | ||
4377 | cbss = wpa_s->current_bss; | |
4378 | ||
4379 | dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { | |
4380 | if (bss == cbss) | |
4381 | continue; | |
4382 | if (bss->ssid_len == cbss->ssid_len && | |
4383 | os_memcmp(bss->ssid, cbss->ssid, bss->ssid_len) == 0 && | |
4384 | wpa_blacklist_get(wpa_s, bss->bssid) == NULL) { | |
4385 | add_freq(freqs, &num_freqs, bss->freq); | |
4386 | if (num_freqs == max_freqs) | |
4387 | break; | |
4388 | } | |
4389 | } | |
4390 | ||
4391 | if (num_freqs == 0) { | |
4392 | os_free(freqs); | |
4393 | freqs = NULL; | |
4394 | } | |
4395 | ||
4396 | return freqs; | |
4397 | } | |
4398 | ||
4399 | ||
4400 | void wpas_connection_failed(struct wpa_supplicant *wpa_s, const u8 *bssid) | |
4401 | { | |
4402 | int timeout; | |
4403 | int count; | |
4404 | int *freqs = NULL; | |
4405 | ||
4406 | wpas_connect_work_done(wpa_s); | |
4407 | ||
4408 | /* | |
4409 | * Remove possible authentication timeout since the connection failed. | |
4410 | */ | |
4411 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
4412 | ||
4413 | if (wpa_s->disconnected) { | |
4414 | /* | |
4415 | * There is no point in blacklisting the AP if this event is | |
4416 | * generated based on local request to disconnect. | |
4417 | */ | |
4418 | wpa_dbg(wpa_s, MSG_DEBUG, "Ignore connection failure " | |
4419 | "indication since interface has been put into " | |
4420 | "disconnected state"); | |
4421 | return; | |
4422 | } | |
4423 | ||
4424 | /* | |
4425 | * Add the failed BSSID into the blacklist and speed up next scan | |
4426 | * attempt if there could be other APs that could accept association. | |
4427 | * The current blacklist count indicates how many times we have tried | |
4428 | * connecting to this AP and multiple attempts mean that other APs are | |
4429 | * either not available or has already been tried, so that we can start | |
4430 | * increasing the delay here to avoid constant scanning. | |
4431 | */ | |
4432 | count = wpa_blacklist_add(wpa_s, bssid); | |
4433 | if (count == 1 && wpa_s->current_bss) { | |
4434 | /* | |
4435 | * This BSS was not in the blacklist before. If there is | |
4436 | * another BSS available for the same ESS, we should try that | |
4437 | * next. Otherwise, we may as well try this one once more | |
4438 | * before allowing other, likely worse, ESSes to be considered. | |
4439 | */ | |
4440 | freqs = get_bss_freqs_in_ess(wpa_s); | |
4441 | if (freqs) { | |
4442 | wpa_dbg(wpa_s, MSG_DEBUG, "Another BSS in this ESS " | |
4443 | "has been seen; try it next"); | |
4444 | wpa_blacklist_add(wpa_s, bssid); | |
4445 | /* | |
4446 | * On the next scan, go through only the known channels | |
4447 | * used in this ESS based on previous scans to speed up | |
4448 | * common load balancing use case. | |
4449 | */ | |
4450 | os_free(wpa_s->next_scan_freqs); | |
4451 | wpa_s->next_scan_freqs = freqs; | |
4452 | } | |
4453 | } | |
4454 | ||
4455 | /* | |
4456 | * Add previous failure count in case the temporary blacklist was | |
4457 | * cleared due to no other BSSes being available. | |
4458 | */ | |
4459 | count += wpa_s->extra_blacklist_count; | |
4460 | ||
4461 | if (count > 3 && wpa_s->current_ssid) { | |
4462 | wpa_printf(MSG_DEBUG, "Continuous association failures - " | |
4463 | "consider temporary network disabling"); | |
4464 | wpas_auth_failed(wpa_s, "CONN_FAILED"); | |
4465 | } | |
4466 | ||
4467 | switch (count) { | |
4468 | case 1: | |
4469 | timeout = 100; | |
4470 | break; | |
4471 | case 2: | |
4472 | timeout = 500; | |
4473 | break; | |
4474 | case 3: | |
4475 | timeout = 1000; | |
4476 | break; | |
4477 | case 4: | |
4478 | timeout = 5000; | |
4479 | break; | |
4480 | default: | |
4481 | timeout = 10000; | |
4482 | break; | |
4483 | } | |
4484 | ||
4485 | wpa_dbg(wpa_s, MSG_DEBUG, "Blacklist count %d --> request scan in %d " | |
4486 | "ms", count, timeout); | |
4487 | ||
4488 | /* | |
4489 | * TODO: if more than one possible AP is available in scan results, | |
4490 | * could try the other ones before requesting a new scan. | |
4491 | */ | |
4492 | wpa_supplicant_req_scan(wpa_s, timeout / 1000, | |
4493 | 1000 * (timeout % 1000)); | |
4494 | } | |
4495 | ||
4496 | ||
4497 | int wpas_driver_bss_selection(struct wpa_supplicant *wpa_s) | |
4498 | { | |
4499 | return wpa_s->conf->ap_scan == 2 || | |
4500 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION); | |
4501 | } | |
4502 | ||
4503 | ||
4504 | #if defined(CONFIG_CTRL_IFACE) || defined(CONFIG_CTRL_IFACE_DBUS_NEW) | |
4505 | int wpa_supplicant_ctrl_iface_ctrl_rsp_handle(struct wpa_supplicant *wpa_s, | |
4506 | struct wpa_ssid *ssid, | |
4507 | const char *field, | |
4508 | const char *value) | |
4509 | { | |
4510 | #ifdef IEEE8021X_EAPOL | |
4511 | struct eap_peer_config *eap = &ssid->eap; | |
4512 | ||
4513 | wpa_printf(MSG_DEBUG, "CTRL_IFACE: response handle field=%s", field); | |
4514 | wpa_hexdump_ascii_key(MSG_DEBUG, "CTRL_IFACE: response value", | |
4515 | (const u8 *) value, os_strlen(value)); | |
4516 | ||
4517 | switch (wpa_supplicant_ctrl_req_from_string(field)) { | |
4518 | case WPA_CTRL_REQ_EAP_IDENTITY: | |
4519 | os_free(eap->identity); | |
4520 | eap->identity = (u8 *) os_strdup(value); | |
4521 | eap->identity_len = os_strlen(value); | |
4522 | eap->pending_req_identity = 0; | |
4523 | if (ssid == wpa_s->current_ssid) | |
4524 | wpa_s->reassociate = 1; | |
4525 | break; | |
4526 | case WPA_CTRL_REQ_EAP_PASSWORD: | |
4527 | bin_clear_free(eap->password, eap->password_len); | |
4528 | eap->password = (u8 *) os_strdup(value); | |
4529 | eap->password_len = os_strlen(value); | |
4530 | eap->pending_req_password = 0; | |
4531 | if (ssid == wpa_s->current_ssid) | |
4532 | wpa_s->reassociate = 1; | |
4533 | break; | |
4534 | case WPA_CTRL_REQ_EAP_NEW_PASSWORD: | |
4535 | bin_clear_free(eap->new_password, eap->new_password_len); | |
4536 | eap->new_password = (u8 *) os_strdup(value); | |
4537 | eap->new_password_len = os_strlen(value); | |
4538 | eap->pending_req_new_password = 0; | |
4539 | if (ssid == wpa_s->current_ssid) | |
4540 | wpa_s->reassociate = 1; | |
4541 | break; | |
4542 | case WPA_CTRL_REQ_EAP_PIN: | |
4543 | str_clear_free(eap->pin); | |
4544 | eap->pin = os_strdup(value); | |
4545 | eap->pending_req_pin = 0; | |
4546 | if (ssid == wpa_s->current_ssid) | |
4547 | wpa_s->reassociate = 1; | |
4548 | break; | |
4549 | case WPA_CTRL_REQ_EAP_OTP: | |
4550 | bin_clear_free(eap->otp, eap->otp_len); | |
4551 | eap->otp = (u8 *) os_strdup(value); | |
4552 | eap->otp_len = os_strlen(value); | |
4553 | os_free(eap->pending_req_otp); | |
4554 | eap->pending_req_otp = NULL; | |
4555 | eap->pending_req_otp_len = 0; | |
4556 | break; | |
4557 | case WPA_CTRL_REQ_EAP_PASSPHRASE: | |
4558 | str_clear_free(eap->private_key_passwd); | |
4559 | eap->private_key_passwd = os_strdup(value); | |
4560 | eap->pending_req_passphrase = 0; | |
4561 | if (ssid == wpa_s->current_ssid) | |
4562 | wpa_s->reassociate = 1; | |
4563 | break; | |
4564 | case WPA_CTRL_REQ_SIM: | |
4565 | str_clear_free(eap->external_sim_resp); | |
4566 | eap->external_sim_resp = os_strdup(value); | |
4567 | break; | |
4568 | default: | |
4569 | wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown field '%s'", field); | |
4570 | return -1; | |
4571 | } | |
4572 | ||
4573 | return 0; | |
4574 | #else /* IEEE8021X_EAPOL */ | |
4575 | wpa_printf(MSG_DEBUG, "CTRL_IFACE: IEEE 802.1X not included"); | |
4576 | return -1; | |
4577 | #endif /* IEEE8021X_EAPOL */ | |
4578 | } | |
4579 | #endif /* CONFIG_CTRL_IFACE || CONFIG_CTRL_IFACE_DBUS_NEW */ | |
4580 | ||
4581 | ||
4582 | int wpas_network_disabled(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid) | |
4583 | { | |
4584 | int i; | |
4585 | unsigned int drv_enc; | |
4586 | ||
4587 | if (ssid == NULL) | |
4588 | return 1; | |
4589 | ||
4590 | if (ssid->disabled) | |
4591 | return 1; | |
4592 | ||
4593 | if (wpa_s && wpa_s->drv_capa_known) | |
4594 | drv_enc = wpa_s->drv_enc; | |
4595 | else | |
4596 | drv_enc = (unsigned int) -1; | |
4597 | ||
4598 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
4599 | size_t len = ssid->wep_key_len[i]; | |
4600 | if (len == 0) | |
4601 | continue; | |
4602 | if (len == 5 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP40)) | |
4603 | continue; | |
4604 | if (len == 13 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP104)) | |
4605 | continue; | |
4606 | if (len == 16 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP128)) | |
4607 | continue; | |
4608 | return 1; /* invalid WEP key */ | |
4609 | } | |
4610 | ||
4611 | if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set && | |
4612 | (!ssid->passphrase || ssid->ssid_len != 0) && !ssid->ext_psk) | |
4613 | return 1; | |
4614 | ||
4615 | return 0; | |
4616 | } | |
4617 | ||
4618 | ||
4619 | int wpas_is_p2p_prioritized(struct wpa_supplicant *wpa_s) | |
4620 | { | |
4621 | if (wpa_s->global->conc_pref == WPA_CONC_PREF_P2P) | |
4622 | return 1; | |
4623 | if (wpa_s->global->conc_pref == WPA_CONC_PREF_STA) | |
4624 | return 0; | |
4625 | return -1; | |
4626 | } | |
4627 | ||
4628 | ||
4629 | void wpas_auth_failed(struct wpa_supplicant *wpa_s, char *reason) | |
4630 | { | |
4631 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
4632 | int dur; | |
4633 | struct os_reltime now; | |
4634 | ||
4635 | if (ssid == NULL) { | |
4636 | wpa_printf(MSG_DEBUG, "Authentication failure but no known " | |
4637 | "SSID block"); | |
4638 | return; | |
4639 | } | |
4640 | ||
4641 | if (ssid->key_mgmt == WPA_KEY_MGMT_WPS) | |
4642 | return; | |
4643 | ||
4644 | ssid->auth_failures++; | |
4645 | ||
4646 | #ifdef CONFIG_P2P | |
4647 | if (ssid->p2p_group && | |
4648 | (wpa_s->p2p_in_provisioning || wpa_s->show_group_started)) { | |
4649 | /* | |
4650 | * Skip the wait time since there is a short timeout on the | |
4651 | * connection to a P2P group. | |
4652 | */ | |
4653 | return; | |
4654 | } | |
4655 | #endif /* CONFIG_P2P */ | |
4656 | ||
4657 | if (ssid->auth_failures > 50) | |
4658 | dur = 300; | |
4659 | else if (ssid->auth_failures > 10) | |
4660 | dur = 120; | |
4661 | else if (ssid->auth_failures > 5) | |
4662 | dur = 90; | |
4663 | else if (ssid->auth_failures > 3) | |
4664 | dur = 60; | |
4665 | else if (ssid->auth_failures > 2) | |
4666 | dur = 30; | |
4667 | else if (ssid->auth_failures > 1) | |
4668 | dur = 20; | |
4669 | else | |
4670 | dur = 10; | |
4671 | ||
4672 | if (ssid->auth_failures > 1 && | |
4673 | wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt)) | |
4674 | dur += os_random() % (ssid->auth_failures * 10); | |
4675 | ||
4676 | os_get_reltime(&now); | |
4677 | if (now.sec + dur <= ssid->disabled_until.sec) | |
4678 | return; | |
4679 | ||
4680 | ssid->disabled_until.sec = now.sec + dur; | |
4681 | ||
4682 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TEMP_DISABLED | |
4683 | "id=%d ssid=\"%s\" auth_failures=%u duration=%d reason=%s", | |
4684 | ssid->id, wpa_ssid_txt(ssid->ssid, ssid->ssid_len), | |
4685 | ssid->auth_failures, dur, reason); | |
4686 | } | |
4687 | ||
4688 | ||
4689 | void wpas_clear_temp_disabled(struct wpa_supplicant *wpa_s, | |
4690 | struct wpa_ssid *ssid, int clear_failures) | |
4691 | { | |
4692 | if (ssid == NULL) | |
4693 | return; | |
4694 | ||
4695 | if (ssid->disabled_until.sec) { | |
4696 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REENABLED | |
4697 | "id=%d ssid=\"%s\"", | |
4698 | ssid->id, wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); | |
4699 | } | |
4700 | ssid->disabled_until.sec = 0; | |
4701 | ssid->disabled_until.usec = 0; | |
4702 | if (clear_failures) | |
4703 | ssid->auth_failures = 0; | |
4704 | } | |
4705 | ||
4706 | ||
4707 | int disallowed_bssid(struct wpa_supplicant *wpa_s, const u8 *bssid) | |
4708 | { | |
4709 | size_t i; | |
4710 | ||
4711 | if (wpa_s->disallow_aps_bssid == NULL) | |
4712 | return 0; | |
4713 | ||
4714 | for (i = 0; i < wpa_s->disallow_aps_bssid_count; i++) { | |
4715 | if (os_memcmp(wpa_s->disallow_aps_bssid + i * ETH_ALEN, | |
4716 | bssid, ETH_ALEN) == 0) | |
4717 | return 1; | |
4718 | } | |
4719 | ||
4720 | return 0; | |
4721 | } | |
4722 | ||
4723 | ||
4724 | int disallowed_ssid(struct wpa_supplicant *wpa_s, const u8 *ssid, | |
4725 | size_t ssid_len) | |
4726 | { | |
4727 | size_t i; | |
4728 | ||
4729 | if (wpa_s->disallow_aps_ssid == NULL || ssid == NULL) | |
4730 | return 0; | |
4731 | ||
4732 | for (i = 0; i < wpa_s->disallow_aps_ssid_count; i++) { | |
4733 | struct wpa_ssid_value *s = &wpa_s->disallow_aps_ssid[i]; | |
4734 | if (ssid_len == s->ssid_len && | |
4735 | os_memcmp(ssid, s->ssid, ssid_len) == 0) | |
4736 | return 1; | |
4737 | } | |
4738 | ||
4739 | return 0; | |
4740 | } | |
4741 | ||
4742 | ||
4743 | /** | |
4744 | * wpas_request_connection - Request a new connection | |
4745 | * @wpa_s: Pointer to the network interface | |
4746 | * | |
4747 | * This function is used to request a new connection to be found. It will mark | |
4748 | * the interface to allow reassociation and request a new scan to find a | |
4749 | * suitable network to connect to. | |
4750 | */ | |
4751 | void wpas_request_connection(struct wpa_supplicant *wpa_s) | |
4752 | { | |
4753 | wpa_s->normal_scans = 0; | |
4754 | wpa_supplicant_reinit_autoscan(wpa_s); | |
4755 | wpa_s->extra_blacklist_count = 0; | |
4756 | wpa_s->disconnected = 0; | |
4757 | wpa_s->reassociate = 1; | |
4758 | ||
4759 | if (wpa_supplicant_fast_associate(wpa_s) != 1) | |
4760 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
4761 | } | |
4762 | ||
4763 | ||
4764 | void dump_freq_data(struct wpa_supplicant *wpa_s, const char *title, | |
4765 | struct wpa_used_freq_data *freqs_data, | |
4766 | unsigned int len) | |
4767 | { | |
4768 | unsigned int i; | |
4769 | ||
4770 | wpa_dbg(wpa_s, MSG_DEBUG, "Shared frequencies (len=%u): %s", | |
4771 | len, title); | |
4772 | for (i = 0; i < len; i++) { | |
4773 | struct wpa_used_freq_data *cur = &freqs_data[i]; | |
4774 | wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d, flags=0x%X", | |
4775 | i, cur->freq, cur->flags); | |
4776 | } | |
4777 | } | |
4778 | ||
4779 | ||
4780 | /* | |
4781 | * Find the operating frequencies of any of the virtual interfaces that | |
4782 | * are using the same radio as the current interface, and in addition, get | |
4783 | * information about the interface types that are using the frequency. | |
4784 | */ | |
4785 | int get_shared_radio_freqs_data(struct wpa_supplicant *wpa_s, | |
4786 | struct wpa_used_freq_data *freqs_data, | |
4787 | unsigned int len) | |
4788 | { | |
4789 | struct wpa_supplicant *ifs; | |
4790 | u8 bssid[ETH_ALEN]; | |
4791 | int freq; | |
4792 | unsigned int idx = 0, i; | |
4793 | ||
4794 | wpa_dbg(wpa_s, MSG_DEBUG, | |
4795 | "Determining shared radio frequencies (max len %u)", len); | |
4796 | os_memset(freqs_data, 0, sizeof(struct wpa_used_freq_data) * len); | |
4797 | ||
4798 | dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant, | |
4799 | radio_list) { | |
4800 | if (idx == len) | |
4801 | break; | |
4802 | ||
4803 | if (ifs->current_ssid == NULL || ifs->assoc_freq == 0) | |
4804 | continue; | |
4805 | ||
4806 | if (ifs->current_ssid->mode == WPAS_MODE_AP || | |
4807 | ifs->current_ssid->mode == WPAS_MODE_P2P_GO) | |
4808 | freq = ifs->current_ssid->frequency; | |
4809 | else if (wpa_drv_get_bssid(ifs, bssid) == 0) | |
4810 | freq = ifs->assoc_freq; | |
4811 | else | |
4812 | continue; | |
4813 | ||
4814 | /* Hold only distinct freqs */ | |
4815 | for (i = 0; i < idx; i++) | |
4816 | if (freqs_data[i].freq == freq) | |
4817 | break; | |
4818 | ||
4819 | if (i == idx) | |
4820 | freqs_data[idx++].freq = freq; | |
4821 | ||
4822 | if (ifs->current_ssid->mode == WPAS_MODE_INFRA) { | |
4823 | freqs_data[i].flags = ifs->current_ssid->p2p_group ? | |
4824 | WPA_FREQ_USED_BY_P2P_CLIENT : | |
4825 | WPA_FREQ_USED_BY_INFRA_STATION; | |
4826 | } | |
4827 | } | |
4828 | ||
4829 | dump_freq_data(wpa_s, "completed iteration", freqs_data, idx); | |
4830 | return idx; | |
4831 | } | |
4832 | ||
4833 | ||
4834 | /* | |
4835 | * Find the operating frequencies of any of the virtual interfaces that | |
4836 | * are using the same radio as the current interface. | |
4837 | */ | |
4838 | int get_shared_radio_freqs(struct wpa_supplicant *wpa_s, | |
4839 | int *freq_array, unsigned int len) | |
4840 | { | |
4841 | struct wpa_used_freq_data *freqs_data; | |
4842 | int num, i; | |
4843 | ||
4844 | os_memset(freq_array, 0, sizeof(int) * len); | |
4845 | ||
4846 | freqs_data = os_calloc(len, sizeof(struct wpa_used_freq_data)); | |
4847 | if (!freqs_data) | |
4848 | return -1; | |
4849 | ||
4850 | num = get_shared_radio_freqs_data(wpa_s, freqs_data, len); | |
4851 | for (i = 0; i < num; i++) | |
4852 | freq_array[i] = freqs_data[i].freq; | |
4853 | ||
4854 | os_free(freqs_data); | |
4855 | ||
4856 | return num; | |
4857 | } |