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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 | ||
55 | const char *wpa_supplicant_version = | |
56 | "wpa_supplicant v" VERSION_STR "\n" | |
57 | "Copyright (c) 2003-2014, Jouni Malinen <j@w1.fi> and contributors"; | |
58 | ||
59 | const char *wpa_supplicant_license = | |
60 | "This software may be distributed under the terms of the BSD license.\n" | |
61 | "See README for more details.\n" | |
62 | #ifdef EAP_TLS_OPENSSL | |
63 | "\nThis product includes software developed by the OpenSSL Project\n" | |
64 | "for use in the OpenSSL Toolkit (http://www.openssl.org/)\n" | |
65 | #endif /* EAP_TLS_OPENSSL */ | |
66 | ; | |
67 | ||
68 | #ifndef CONFIG_NO_STDOUT_DEBUG | |
69 | /* Long text divided into parts in order to fit in C89 strings size limits. */ | |
70 | const char *wpa_supplicant_full_license1 = | |
71 | ""; | |
72 | const char *wpa_supplicant_full_license2 = | |
73 | "This software may be distributed under the terms of the BSD license.\n" | |
74 | "\n" | |
75 | "Redistribution and use in source and binary forms, with or without\n" | |
76 | "modification, are permitted provided that the following conditions are\n" | |
77 | "met:\n" | |
78 | "\n"; | |
79 | const char *wpa_supplicant_full_license3 = | |
80 | "1. Redistributions of source code must retain the above copyright\n" | |
81 | " notice, this list of conditions and the following disclaimer.\n" | |
82 | "\n" | |
83 | "2. Redistributions in binary form must reproduce the above copyright\n" | |
84 | " notice, this list of conditions and the following disclaimer in the\n" | |
85 | " documentation and/or other materials provided with the distribution.\n" | |
86 | "\n"; | |
87 | const char *wpa_supplicant_full_license4 = | |
88 | "3. Neither the name(s) of the above-listed copyright holder(s) nor the\n" | |
89 | " names of its contributors may be used to endorse or promote products\n" | |
90 | " derived from this software without specific prior written permission.\n" | |
91 | "\n" | |
92 | "THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n" | |
93 | "\"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n" | |
94 | "LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n" | |
95 | "A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n"; | |
96 | const char *wpa_supplicant_full_license5 = | |
97 | "OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n" | |
98 | "SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n" | |
99 | "LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n" | |
100 | "DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n" | |
101 | "THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n" | |
102 | "(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n" | |
103 | "OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n" | |
104 | "\n"; | |
105 | #endif /* CONFIG_NO_STDOUT_DEBUG */ | |
106 | ||
107 | /* Configure default/group WEP keys for static WEP */ | |
108 | int wpa_set_wep_keys(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid) | |
109 | { | |
110 | int i, set = 0; | |
111 | ||
112 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
113 | if (ssid->wep_key_len[i] == 0) | |
114 | continue; | |
115 | ||
116 | set = 1; | |
117 | wpa_drv_set_key(wpa_s, WPA_ALG_WEP, NULL, | |
118 | i, i == ssid->wep_tx_keyidx, NULL, 0, | |
119 | ssid->wep_key[i], ssid->wep_key_len[i]); | |
120 | } | |
121 | ||
122 | return set; | |
123 | } | |
124 | ||
125 | ||
126 | int wpa_supplicant_set_wpa_none_key(struct wpa_supplicant *wpa_s, | |
127 | struct wpa_ssid *ssid) | |
128 | { | |
129 | u8 key[32]; | |
130 | size_t keylen; | |
131 | enum wpa_alg alg; | |
132 | u8 seq[6] = { 0 }; | |
133 | ||
134 | /* IBSS/WPA-None uses only one key (Group) for both receiving and | |
135 | * sending unicast and multicast packets. */ | |
136 | ||
137 | if (ssid->mode != WPAS_MODE_IBSS) { | |
138 | wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid mode %d (not " | |
139 | "IBSS/ad-hoc) for WPA-None", ssid->mode); | |
140 | return -1; | |
141 | } | |
142 | ||
143 | if (!ssid->psk_set) { | |
144 | wpa_msg(wpa_s, MSG_INFO, "WPA: No PSK configured for " | |
145 | "WPA-None"); | |
146 | return -1; | |
147 | } | |
148 | ||
149 | switch (wpa_s->group_cipher) { | |
150 | case WPA_CIPHER_CCMP: | |
151 | os_memcpy(key, ssid->psk, 16); | |
152 | keylen = 16; | |
153 | alg = WPA_ALG_CCMP; | |
154 | break; | |
155 | case WPA_CIPHER_GCMP: | |
156 | os_memcpy(key, ssid->psk, 16); | |
157 | keylen = 16; | |
158 | alg = WPA_ALG_GCMP; | |
159 | break; | |
160 | case WPA_CIPHER_TKIP: | |
161 | /* WPA-None uses the same Michael MIC key for both TX and RX */ | |
162 | os_memcpy(key, ssid->psk, 16 + 8); | |
163 | os_memcpy(key + 16 + 8, ssid->psk + 16, 8); | |
164 | keylen = 32; | |
165 | alg = WPA_ALG_TKIP; | |
166 | break; | |
167 | default: | |
168 | wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid group cipher %d for " | |
169 | "WPA-None", wpa_s->group_cipher); | |
170 | return -1; | |
171 | } | |
172 | ||
173 | /* TODO: should actually remember the previously used seq#, both for TX | |
174 | * and RX from each STA.. */ | |
175 | ||
176 | return wpa_drv_set_key(wpa_s, alg, NULL, 0, 1, seq, 6, key, keylen); | |
177 | } | |
178 | ||
179 | ||
180 | static void wpa_supplicant_timeout(void *eloop_ctx, void *timeout_ctx) | |
181 | { | |
182 | struct wpa_supplicant *wpa_s = eloop_ctx; | |
183 | const u8 *bssid = wpa_s->bssid; | |
184 | if (is_zero_ether_addr(bssid)) | |
185 | bssid = wpa_s->pending_bssid; | |
186 | wpa_msg(wpa_s, MSG_INFO, "Authentication with " MACSTR " timed out.", | |
187 | MAC2STR(bssid)); | |
188 | wpa_blacklist_add(wpa_s, bssid); | |
189 | wpa_sm_notify_disassoc(wpa_s->wpa); | |
190 | wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
191 | wpa_s->reassociate = 1; | |
192 | ||
193 | /* | |
194 | * If we timed out, the AP or the local radio may be busy. | |
195 | * So, wait a second until scanning again. | |
196 | */ | |
197 | wpa_supplicant_req_scan(wpa_s, 1, 0); | |
198 | } | |
199 | ||
200 | ||
201 | /** | |
202 | * wpa_supplicant_req_auth_timeout - Schedule a timeout for authentication | |
203 | * @wpa_s: Pointer to wpa_supplicant data | |
204 | * @sec: Number of seconds after which to time out authentication | |
205 | * @usec: Number of microseconds after which to time out authentication | |
206 | * | |
207 | * This function is used to schedule a timeout for the current authentication | |
208 | * attempt. | |
209 | */ | |
210 | void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s, | |
211 | int sec, int usec) | |
212 | { | |
213 | if (wpa_s->conf->ap_scan == 0 && | |
214 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)) | |
215 | return; | |
216 | ||
217 | wpa_dbg(wpa_s, MSG_DEBUG, "Setting authentication timeout: %d sec " | |
218 | "%d usec", sec, usec); | |
219 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
220 | eloop_register_timeout(sec, usec, wpa_supplicant_timeout, wpa_s, NULL); | |
221 | } | |
222 | ||
223 | ||
224 | /** | |
225 | * wpa_supplicant_cancel_auth_timeout - Cancel authentication timeout | |
226 | * @wpa_s: Pointer to wpa_supplicant data | |
227 | * | |
228 | * This function is used to cancel authentication timeout scheduled with | |
229 | * wpa_supplicant_req_auth_timeout() and it is called when authentication has | |
230 | * been completed. | |
231 | */ | |
232 | void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s) | |
233 | { | |
234 | wpa_dbg(wpa_s, MSG_DEBUG, "Cancelling authentication timeout"); | |
235 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
236 | wpa_blacklist_del(wpa_s, wpa_s->bssid); | |
237 | } | |
238 | ||
239 | ||
240 | /** | |
241 | * wpa_supplicant_initiate_eapol - Configure EAPOL state machine | |
242 | * @wpa_s: Pointer to wpa_supplicant data | |
243 | * | |
244 | * This function is used to configure EAPOL state machine based on the selected | |
245 | * authentication mode. | |
246 | */ | |
247 | void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s) | |
248 | { | |
249 | #ifdef IEEE8021X_EAPOL | |
250 | struct eapol_config eapol_conf; | |
251 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
252 | ||
253 | #ifdef CONFIG_IBSS_RSN | |
254 | if (ssid->mode == WPAS_MODE_IBSS && | |
255 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && | |
256 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { | |
257 | /* | |
258 | * RSN IBSS authentication is per-STA and we can disable the | |
259 | * per-BSSID EAPOL authentication. | |
260 | */ | |
261 | eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized); | |
262 | eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); | |
263 | eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); | |
264 | return; | |
265 | } | |
266 | #endif /* CONFIG_IBSS_RSN */ | |
267 | ||
268 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); | |
269 | eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE); | |
270 | ||
271 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || | |
272 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) | |
273 | eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized); | |
274 | else | |
275 | eapol_sm_notify_portControl(wpa_s->eapol, Auto); | |
276 | ||
277 | os_memset(&eapol_conf, 0, sizeof(eapol_conf)); | |
278 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
279 | eapol_conf.accept_802_1x_keys = 1; | |
280 | eapol_conf.required_keys = 0; | |
281 | if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_UNICAST) { | |
282 | eapol_conf.required_keys |= EAPOL_REQUIRE_KEY_UNICAST; | |
283 | } | |
284 | if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_BROADCAST) { | |
285 | eapol_conf.required_keys |= | |
286 | EAPOL_REQUIRE_KEY_BROADCAST; | |
287 | } | |
288 | ||
289 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED) | |
290 | eapol_conf.required_keys = 0; | |
291 | } | |
292 | eapol_conf.fast_reauth = wpa_s->conf->fast_reauth; | |
293 | eapol_conf.workaround = ssid->eap_workaround; | |
294 | eapol_conf.eap_disabled = | |
295 | !wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) && | |
296 | wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA && | |
297 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPS; | |
298 | eapol_conf.external_sim = wpa_s->conf->external_sim; | |
299 | eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf); | |
300 | #endif /* IEEE8021X_EAPOL */ | |
301 | } | |
302 | ||
303 | ||
304 | /** | |
305 | * wpa_supplicant_set_non_wpa_policy - Set WPA parameters to non-WPA mode | |
306 | * @wpa_s: Pointer to wpa_supplicant data | |
307 | * @ssid: Configuration data for the network | |
308 | * | |
309 | * This function is used to configure WPA state machine and related parameters | |
310 | * to a mode where WPA is not enabled. This is called as part of the | |
311 | * authentication configuration when the selected network does not use WPA. | |
312 | */ | |
313 | void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s, | |
314 | struct wpa_ssid *ssid) | |
315 | { | |
316 | int i; | |
317 | ||
318 | if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) | |
319 | wpa_s->key_mgmt = WPA_KEY_MGMT_WPS; | |
320 | else if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) | |
321 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_NO_WPA; | |
322 | else | |
323 | wpa_s->key_mgmt = WPA_KEY_MGMT_NONE; | |
324 | wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); | |
325 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); | |
326 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); | |
327 | wpa_s->pairwise_cipher = WPA_CIPHER_NONE; | |
328 | wpa_s->group_cipher = WPA_CIPHER_NONE; | |
329 | wpa_s->mgmt_group_cipher = 0; | |
330 | ||
331 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
332 | if (ssid->wep_key_len[i] > 5) { | |
333 | wpa_s->pairwise_cipher = WPA_CIPHER_WEP104; | |
334 | wpa_s->group_cipher = WPA_CIPHER_WEP104; | |
335 | break; | |
336 | } else if (ssid->wep_key_len[i] > 0) { | |
337 | wpa_s->pairwise_cipher = WPA_CIPHER_WEP40; | |
338 | wpa_s->group_cipher = WPA_CIPHER_WEP40; | |
339 | break; | |
340 | } | |
341 | } | |
342 | ||
343 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, 0); | |
344 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); | |
345 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, | |
346 | wpa_s->pairwise_cipher); | |
347 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); | |
348 | #ifdef CONFIG_IEEE80211W | |
349 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, | |
350 | wpa_s->mgmt_group_cipher); | |
351 | #endif /* CONFIG_IEEE80211W */ | |
352 | ||
353 | pmksa_cache_clear_current(wpa_s->wpa); | |
354 | } | |
355 | ||
356 | ||
357 | void free_hw_features(struct wpa_supplicant *wpa_s) | |
358 | { | |
359 | int i; | |
360 | if (wpa_s->hw.modes == NULL) | |
361 | return; | |
362 | ||
363 | for (i = 0; i < wpa_s->hw.num_modes; i++) { | |
364 | os_free(wpa_s->hw.modes[i].channels); | |
365 | os_free(wpa_s->hw.modes[i].rates); | |
366 | } | |
367 | ||
368 | os_free(wpa_s->hw.modes); | |
369 | wpa_s->hw.modes = NULL; | |
370 | } | |
371 | ||
372 | ||
373 | static void wpa_supplicant_cleanup(struct wpa_supplicant *wpa_s) | |
374 | { | |
375 | bgscan_deinit(wpa_s); | |
376 | autoscan_deinit(wpa_s); | |
377 | scard_deinit(wpa_s->scard); | |
378 | wpa_s->scard = NULL; | |
379 | wpa_sm_set_scard_ctx(wpa_s->wpa, NULL); | |
380 | eapol_sm_register_scard_ctx(wpa_s->eapol, NULL); | |
381 | l2_packet_deinit(wpa_s->l2); | |
382 | wpa_s->l2 = NULL; | |
383 | if (wpa_s->l2_br) { | |
384 | l2_packet_deinit(wpa_s->l2_br); | |
385 | wpa_s->l2_br = NULL; | |
386 | } | |
387 | ||
388 | if (wpa_s->conf != NULL) { | |
389 | struct wpa_ssid *ssid; | |
390 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) | |
391 | wpas_notify_network_removed(wpa_s, ssid); | |
392 | } | |
393 | ||
394 | os_free(wpa_s->confname); | |
395 | wpa_s->confname = NULL; | |
396 | ||
397 | os_free(wpa_s->confanother); | |
398 | wpa_s->confanother = NULL; | |
399 | ||
400 | #ifdef CONFIG_P2P | |
401 | os_free(wpa_s->conf_p2p_dev); | |
402 | wpa_s->conf_p2p_dev = NULL; | |
403 | #endif /* CONFIG_P2P */ | |
404 | ||
405 | wpa_sm_set_eapol(wpa_s->wpa, NULL); | |
406 | eapol_sm_deinit(wpa_s->eapol); | |
407 | wpa_s->eapol = NULL; | |
408 | ||
409 | rsn_preauth_deinit(wpa_s->wpa); | |
410 | ||
411 | #ifdef CONFIG_TDLS | |
412 | wpa_tdls_deinit(wpa_s->wpa); | |
413 | #endif /* CONFIG_TDLS */ | |
414 | ||
415 | pmksa_candidate_free(wpa_s->wpa); | |
416 | wpa_sm_deinit(wpa_s->wpa); | |
417 | wpa_s->wpa = NULL; | |
418 | wpa_blacklist_clear(wpa_s); | |
419 | ||
420 | wpa_bss_deinit(wpa_s); | |
421 | ||
422 | wpa_supplicant_cancel_delayed_sched_scan(wpa_s); | |
423 | wpa_supplicant_cancel_scan(wpa_s); | |
424 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
425 | eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, wpa_s, NULL); | |
426 | #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT | |
427 | eloop_cancel_timeout(wpa_supplicant_delayed_mic_error_report, | |
428 | wpa_s, NULL); | |
429 | #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ | |
430 | ||
431 | wpas_wps_deinit(wpa_s); | |
432 | ||
433 | wpabuf_free(wpa_s->pending_eapol_rx); | |
434 | wpa_s->pending_eapol_rx = NULL; | |
435 | ||
436 | #ifdef CONFIG_IBSS_RSN | |
437 | ibss_rsn_deinit(wpa_s->ibss_rsn); | |
438 | wpa_s->ibss_rsn = NULL; | |
439 | #endif /* CONFIG_IBSS_RSN */ | |
440 | ||
441 | sme_deinit(wpa_s); | |
442 | ||
443 | #ifdef CONFIG_AP | |
444 | wpa_supplicant_ap_deinit(wpa_s); | |
445 | #endif /* CONFIG_AP */ | |
446 | ||
447 | #ifdef CONFIG_P2P | |
448 | wpas_p2p_deinit(wpa_s); | |
449 | #endif /* CONFIG_P2P */ | |
450 | ||
451 | #ifdef CONFIG_OFFCHANNEL | |
452 | offchannel_deinit(wpa_s); | |
453 | #endif /* CONFIG_OFFCHANNEL */ | |
454 | ||
455 | wpa_supplicant_cancel_sched_scan(wpa_s); | |
456 | ||
457 | os_free(wpa_s->next_scan_freqs); | |
458 | wpa_s->next_scan_freqs = NULL; | |
459 | ||
460 | os_free(wpa_s->manual_scan_freqs); | |
461 | wpa_s->manual_scan_freqs = NULL; | |
462 | ||
463 | gas_query_deinit(wpa_s->gas); | |
464 | wpa_s->gas = NULL; | |
465 | ||
466 | free_hw_features(wpa_s); | |
467 | ||
468 | os_free(wpa_s->bssid_filter); | |
469 | wpa_s->bssid_filter = NULL; | |
470 | ||
471 | os_free(wpa_s->disallow_aps_bssid); | |
472 | wpa_s->disallow_aps_bssid = NULL; | |
473 | os_free(wpa_s->disallow_aps_ssid); | |
474 | wpa_s->disallow_aps_ssid = NULL; | |
475 | ||
476 | wnm_bss_keep_alive_deinit(wpa_s); | |
477 | #ifdef CONFIG_WNM | |
478 | wnm_deallocate_memory(wpa_s); | |
479 | #endif /* CONFIG_WNM */ | |
480 | ||
481 | ext_password_deinit(wpa_s->ext_pw); | |
482 | wpa_s->ext_pw = NULL; | |
483 | ||
484 | wpabuf_free(wpa_s->last_gas_resp); | |
485 | wpa_s->last_gas_resp = NULL; | |
486 | wpabuf_free(wpa_s->prev_gas_resp); | |
487 | wpa_s->prev_gas_resp = NULL; | |
488 | ||
489 | os_free(wpa_s->last_scan_res); | |
490 | wpa_s->last_scan_res = NULL; | |
491 | ||
492 | #ifdef CONFIG_HS20 | |
493 | hs20_free_osu_prov(wpa_s); | |
494 | #endif /* CONFIG_HS20 */ | |
495 | } | |
496 | ||
497 | ||
498 | /** | |
499 | * wpa_clear_keys - Clear keys configured for the driver | |
500 | * @wpa_s: Pointer to wpa_supplicant data | |
501 | * @addr: Previously used BSSID or %NULL if not available | |
502 | * | |
503 | * This function clears the encryption keys that has been previously configured | |
504 | * for the driver. | |
505 | */ | |
506 | void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr) | |
507 | { | |
508 | int i, max; | |
509 | ||
510 | #ifdef CONFIG_IEEE80211W | |
511 | max = 6; | |
512 | #else /* CONFIG_IEEE80211W */ | |
513 | max = 4; | |
514 | #endif /* CONFIG_IEEE80211W */ | |
515 | ||
516 | /* MLME-DELETEKEYS.request */ | |
517 | for (i = 0; i < max; i++) { | |
518 | if (wpa_s->keys_cleared & BIT(i)) | |
519 | continue; | |
520 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, i, 0, NULL, 0, | |
521 | NULL, 0); | |
522 | } | |
523 | if (!(wpa_s->keys_cleared & BIT(0)) && addr && | |
524 | !is_zero_ether_addr(addr)) { | |
525 | wpa_drv_set_key(wpa_s, WPA_ALG_NONE, addr, 0, 0, NULL, 0, NULL, | |
526 | 0); | |
527 | /* MLME-SETPROTECTION.request(None) */ | |
528 | wpa_drv_mlme_setprotection( | |
529 | wpa_s, addr, | |
530 | MLME_SETPROTECTION_PROTECT_TYPE_NONE, | |
531 | MLME_SETPROTECTION_KEY_TYPE_PAIRWISE); | |
532 | } | |
533 | wpa_s->keys_cleared = (u32) -1; | |
534 | } | |
535 | ||
536 | ||
537 | /** | |
538 | * wpa_supplicant_state_txt - Get the connection state name as a text string | |
539 | * @state: State (wpa_state; WPA_*) | |
540 | * Returns: The state name as a printable text string | |
541 | */ | |
542 | const char * wpa_supplicant_state_txt(enum wpa_states state) | |
543 | { | |
544 | switch (state) { | |
545 | case WPA_DISCONNECTED: | |
546 | return "DISCONNECTED"; | |
547 | case WPA_INACTIVE: | |
548 | return "INACTIVE"; | |
549 | case WPA_INTERFACE_DISABLED: | |
550 | return "INTERFACE_DISABLED"; | |
551 | case WPA_SCANNING: | |
552 | return "SCANNING"; | |
553 | case WPA_AUTHENTICATING: | |
554 | return "AUTHENTICATING"; | |
555 | case WPA_ASSOCIATING: | |
556 | return "ASSOCIATING"; | |
557 | case WPA_ASSOCIATED: | |
558 | return "ASSOCIATED"; | |
559 | case WPA_4WAY_HANDSHAKE: | |
560 | return "4WAY_HANDSHAKE"; | |
561 | case WPA_GROUP_HANDSHAKE: | |
562 | return "GROUP_HANDSHAKE"; | |
563 | case WPA_COMPLETED: | |
564 | return "COMPLETED"; | |
565 | default: | |
566 | return "UNKNOWN"; | |
567 | } | |
568 | } | |
569 | ||
570 | ||
571 | #ifdef CONFIG_BGSCAN | |
572 | ||
573 | static void wpa_supplicant_start_bgscan(struct wpa_supplicant *wpa_s) | |
574 | { | |
575 | const char *name; | |
576 | ||
577 | if (wpa_s->current_ssid && wpa_s->current_ssid->bgscan) | |
578 | name = wpa_s->current_ssid->bgscan; | |
579 | else | |
580 | name = wpa_s->conf->bgscan; | |
581 | if (name == NULL || name[0] == '\0') | |
582 | return; | |
583 | if (wpas_driver_bss_selection(wpa_s)) | |
584 | return; | |
585 | if (wpa_s->current_ssid == wpa_s->bgscan_ssid) | |
586 | return; | |
587 | #ifdef CONFIG_P2P | |
588 | if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) | |
589 | return; | |
590 | #endif /* CONFIG_P2P */ | |
591 | ||
592 | bgscan_deinit(wpa_s); | |
593 | if (wpa_s->current_ssid) { | |
594 | if (bgscan_init(wpa_s, wpa_s->current_ssid, name)) { | |
595 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize " | |
596 | "bgscan"); | |
597 | /* | |
598 | * Live without bgscan; it is only used as a roaming | |
599 | * optimization, so the initial connection is not | |
600 | * affected. | |
601 | */ | |
602 | } else { | |
603 | struct wpa_scan_results *scan_res; | |
604 | wpa_s->bgscan_ssid = wpa_s->current_ssid; | |
605 | scan_res = wpa_supplicant_get_scan_results(wpa_s, NULL, | |
606 | 0); | |
607 | if (scan_res) { | |
608 | bgscan_notify_scan(wpa_s, scan_res); | |
609 | wpa_scan_results_free(scan_res); | |
610 | } | |
611 | } | |
612 | } else | |
613 | wpa_s->bgscan_ssid = NULL; | |
614 | } | |
615 | ||
616 | ||
617 | static void wpa_supplicant_stop_bgscan(struct wpa_supplicant *wpa_s) | |
618 | { | |
619 | if (wpa_s->bgscan_ssid != NULL) { | |
620 | bgscan_deinit(wpa_s); | |
621 | wpa_s->bgscan_ssid = NULL; | |
622 | } | |
623 | } | |
624 | ||
625 | #endif /* CONFIG_BGSCAN */ | |
626 | ||
627 | ||
628 | static void wpa_supplicant_start_autoscan(struct wpa_supplicant *wpa_s) | |
629 | { | |
630 | if (autoscan_init(wpa_s, 0)) | |
631 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize autoscan"); | |
632 | } | |
633 | ||
634 | ||
635 | static void wpa_supplicant_stop_autoscan(struct wpa_supplicant *wpa_s) | |
636 | { | |
637 | autoscan_deinit(wpa_s); | |
638 | } | |
639 | ||
640 | ||
641 | void wpa_supplicant_reinit_autoscan(struct wpa_supplicant *wpa_s) | |
642 | { | |
643 | if (wpa_s->wpa_state == WPA_DISCONNECTED || | |
644 | wpa_s->wpa_state == WPA_SCANNING) { | |
645 | autoscan_deinit(wpa_s); | |
646 | wpa_supplicant_start_autoscan(wpa_s); | |
647 | } | |
648 | } | |
649 | ||
650 | ||
651 | /** | |
652 | * wpa_supplicant_set_state - Set current connection state | |
653 | * @wpa_s: Pointer to wpa_supplicant data | |
654 | * @state: The new connection state | |
655 | * | |
656 | * This function is called whenever the connection state changes, e.g., | |
657 | * association is completed for WPA/WPA2 4-Way Handshake is started. | |
658 | */ | |
659 | void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s, | |
660 | enum wpa_states state) | |
661 | { | |
662 | enum wpa_states old_state = wpa_s->wpa_state; | |
663 | ||
664 | wpa_dbg(wpa_s, MSG_DEBUG, "State: %s -> %s", | |
665 | wpa_supplicant_state_txt(wpa_s->wpa_state), | |
666 | wpa_supplicant_state_txt(state)); | |
667 | ||
668 | if (state == WPA_INTERFACE_DISABLED) { | |
669 | /* Assure normal scan when interface is restored */ | |
670 | wpa_s->normal_scans = 0; | |
671 | } | |
672 | ||
673 | if (state == WPA_COMPLETED) | |
674 | wpas_connect_work_done(wpa_s); | |
675 | ||
676 | if (state != WPA_SCANNING) | |
677 | wpa_supplicant_notify_scanning(wpa_s, 0); | |
678 | ||
679 | if (state == WPA_COMPLETED && wpa_s->new_connection) { | |
680 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
681 | #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG) | |
682 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CONNECTED "- Connection to " | |
683 | MACSTR " completed [id=%d id_str=%s]", | |
684 | MAC2STR(wpa_s->bssid), | |
685 | ssid ? ssid->id : -1, | |
686 | ssid && ssid->id_str ? ssid->id_str : ""); | |
687 | #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */ | |
688 | wpas_clear_temp_disabled(wpa_s, ssid, 1); | |
689 | wpa_s->extra_blacklist_count = 0; | |
690 | wpa_s->new_connection = 0; | |
691 | wpa_drv_set_operstate(wpa_s, 1); | |
692 | #ifndef IEEE8021X_EAPOL | |
693 | wpa_drv_set_supp_port(wpa_s, 1); | |
694 | #endif /* IEEE8021X_EAPOL */ | |
695 | wpa_s->after_wps = 0; | |
696 | wpa_s->known_wps_freq = 0; | |
697 | #ifdef CONFIG_P2P | |
698 | wpas_p2p_completed(wpa_s); | |
699 | #endif /* CONFIG_P2P */ | |
700 | ||
701 | sme_sched_obss_scan(wpa_s, 1); | |
702 | } else if (state == WPA_DISCONNECTED || state == WPA_ASSOCIATING || | |
703 | state == WPA_ASSOCIATED) { | |
704 | wpa_s->new_connection = 1; | |
705 | wpa_drv_set_operstate(wpa_s, 0); | |
706 | #ifndef IEEE8021X_EAPOL | |
707 | wpa_drv_set_supp_port(wpa_s, 0); | |
708 | #endif /* IEEE8021X_EAPOL */ | |
709 | sme_sched_obss_scan(wpa_s, 0); | |
710 | } | |
711 | wpa_s->wpa_state = state; | |
712 | ||
713 | #ifdef CONFIG_BGSCAN | |
714 | if (state == WPA_COMPLETED) | |
715 | wpa_supplicant_start_bgscan(wpa_s); | |
716 | else if (state < WPA_ASSOCIATED) | |
717 | wpa_supplicant_stop_bgscan(wpa_s); | |
718 | #endif /* CONFIG_BGSCAN */ | |
719 | ||
720 | if (state == WPA_AUTHENTICATING) | |
721 | wpa_supplicant_stop_autoscan(wpa_s); | |
722 | ||
723 | if (state == WPA_DISCONNECTED || state == WPA_INACTIVE) | |
724 | wpa_supplicant_start_autoscan(wpa_s); | |
725 | ||
726 | if (wpa_s->wpa_state != old_state) { | |
727 | wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state); | |
728 | ||
729 | if (wpa_s->wpa_state == WPA_COMPLETED || | |
730 | old_state == WPA_COMPLETED) | |
731 | wpas_notify_auth_changed(wpa_s); | |
732 | } | |
733 | } | |
734 | ||
735 | ||
736 | void wpa_supplicant_terminate_proc(struct wpa_global *global) | |
737 | { | |
738 | int pending = 0; | |
739 | #ifdef CONFIG_WPS | |
740 | struct wpa_supplicant *wpa_s = global->ifaces; | |
741 | while (wpa_s) { | |
742 | struct wpa_supplicant *next = wpa_s->next; | |
743 | #ifdef CONFIG_P2P | |
744 | if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE || | |
745 | (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group)) | |
746 | wpas_p2p_disconnect(wpa_s); | |
747 | #endif /* CONFIG_P2P */ | |
748 | if (wpas_wps_terminate_pending(wpa_s) == 1) | |
749 | pending = 1; | |
750 | wpa_s = next; | |
751 | } | |
752 | #endif /* CONFIG_WPS */ | |
753 | if (pending) | |
754 | return; | |
755 | eloop_terminate(); | |
756 | } | |
757 | ||
758 | ||
759 | static void wpa_supplicant_terminate(int sig, void *signal_ctx) | |
760 | { | |
761 | struct wpa_global *global = signal_ctx; | |
762 | wpa_supplicant_terminate_proc(global); | |
763 | } | |
764 | ||
765 | ||
766 | void wpa_supplicant_clear_status(struct wpa_supplicant *wpa_s) | |
767 | { | |
768 | enum wpa_states old_state = wpa_s->wpa_state; | |
769 | ||
770 | wpa_s->pairwise_cipher = 0; | |
771 | wpa_s->group_cipher = 0; | |
772 | wpa_s->mgmt_group_cipher = 0; | |
773 | wpa_s->key_mgmt = 0; | |
774 | if (wpa_s->wpa_state != WPA_INTERFACE_DISABLED) | |
775 | wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); | |
776 | ||
777 | if (wpa_s->wpa_state != old_state) | |
778 | wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state); | |
779 | } | |
780 | ||
781 | ||
782 | /** | |
783 | * wpa_supplicant_reload_configuration - Reload configuration data | |
784 | * @wpa_s: Pointer to wpa_supplicant data | |
785 | * Returns: 0 on success or -1 if configuration parsing failed | |
786 | * | |
787 | * This function can be used to request that the configuration data is reloaded | |
788 | * (e.g., after configuration file change). This function is reloading | |
789 | * configuration only for one interface, so this may need to be called multiple | |
790 | * times if %wpa_supplicant is controlling multiple interfaces and all | |
791 | * interfaces need reconfiguration. | |
792 | */ | |
793 | int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s) | |
794 | { | |
795 | struct wpa_config *conf; | |
796 | int reconf_ctrl; | |
797 | int old_ap_scan; | |
798 | ||
799 | if (wpa_s->confname == NULL) | |
800 | return -1; | |
801 | conf = wpa_config_read(wpa_s->confname, NULL); | |
802 | if (conf == NULL) { | |
803 | wpa_msg(wpa_s, MSG_ERROR, "Failed to parse the configuration " | |
804 | "file '%s' - exiting", wpa_s->confname); | |
805 | return -1; | |
806 | } | |
807 | wpa_config_read(wpa_s->confanother, conf); | |
808 | ||
809 | conf->changed_parameters = (unsigned int) -1; | |
810 | ||
811 | reconf_ctrl = !!conf->ctrl_interface != !!wpa_s->conf->ctrl_interface | |
812 | || (conf->ctrl_interface && wpa_s->conf->ctrl_interface && | |
813 | os_strcmp(conf->ctrl_interface, | |
814 | wpa_s->conf->ctrl_interface) != 0); | |
815 | ||
816 | if (reconf_ctrl && wpa_s->ctrl_iface) { | |
817 | wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); | |
818 | wpa_s->ctrl_iface = NULL; | |
819 | } | |
820 | ||
821 | eapol_sm_invalidate_cached_session(wpa_s->eapol); | |
822 | if (wpa_s->current_ssid) { | |
823 | wpa_supplicant_deauthenticate(wpa_s, | |
824 | WLAN_REASON_DEAUTH_LEAVING); | |
825 | } | |
826 | ||
827 | /* | |
828 | * TODO: should notify EAPOL SM about changes in opensc_engine_path, | |
829 | * pkcs11_engine_path, pkcs11_module_path. | |
830 | */ | |
831 | if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { | |
832 | /* | |
833 | * Clear forced success to clear EAP state for next | |
834 | * authentication. | |
835 | */ | |
836 | eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); | |
837 | } | |
838 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
839 | wpa_sm_set_config(wpa_s->wpa, NULL); | |
840 | wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL); | |
841 | wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); | |
842 | rsn_preauth_deinit(wpa_s->wpa); | |
843 | ||
844 | old_ap_scan = wpa_s->conf->ap_scan; | |
845 | wpa_config_free(wpa_s->conf); | |
846 | wpa_s->conf = conf; | |
847 | if (old_ap_scan != wpa_s->conf->ap_scan) | |
848 | wpas_notify_ap_scan_changed(wpa_s); | |
849 | ||
850 | if (reconf_ctrl) | |
851 | wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); | |
852 | ||
853 | wpa_supplicant_update_config(wpa_s); | |
854 | ||
855 | wpa_supplicant_clear_status(wpa_s); | |
856 | if (wpa_supplicant_enabled_networks(wpa_s)) { | |
857 | wpa_s->reassociate = 1; | |
858 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
859 | } | |
860 | wpa_dbg(wpa_s, MSG_DEBUG, "Reconfiguration completed"); | |
861 | return 0; | |
862 | } | |
863 | ||
864 | ||
865 | static void wpa_supplicant_reconfig(int sig, void *signal_ctx) | |
866 | { | |
867 | struct wpa_global *global = signal_ctx; | |
868 | struct wpa_supplicant *wpa_s; | |
869 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { | |
870 | wpa_dbg(wpa_s, MSG_DEBUG, "Signal %d received - reconfiguring", | |
871 | sig); | |
872 | if (wpa_supplicant_reload_configuration(wpa_s) < 0) { | |
873 | wpa_supplicant_terminate_proc(global); | |
874 | } | |
875 | } | |
876 | } | |
877 | ||
878 | ||
879 | static int wpa_supplicant_suites_from_ai(struct wpa_supplicant *wpa_s, | |
880 | struct wpa_ssid *ssid, | |
881 | struct wpa_ie_data *ie) | |
882 | { | |
883 | int ret = wpa_sm_parse_own_wpa_ie(wpa_s->wpa, ie); | |
884 | if (ret) { | |
885 | if (ret == -2) { | |
886 | wpa_msg(wpa_s, MSG_INFO, "WPA: Failed to parse WPA IE " | |
887 | "from association info"); | |
888 | } | |
889 | return -1; | |
890 | } | |
891 | ||
892 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Using WPA IE from AssocReq to set " | |
893 | "cipher suites"); | |
894 | if (!(ie->group_cipher & ssid->group_cipher)) { | |
895 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled group " | |
896 | "cipher 0x%x (mask 0x%x) - reject", | |
897 | ie->group_cipher, ssid->group_cipher); | |
898 | return -1; | |
899 | } | |
900 | if (!(ie->pairwise_cipher & ssid->pairwise_cipher)) { | |
901 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled pairwise " | |
902 | "cipher 0x%x (mask 0x%x) - reject", | |
903 | ie->pairwise_cipher, ssid->pairwise_cipher); | |
904 | return -1; | |
905 | } | |
906 | if (!(ie->key_mgmt & ssid->key_mgmt)) { | |
907 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled key " | |
908 | "management 0x%x (mask 0x%x) - reject", | |
909 | ie->key_mgmt, ssid->key_mgmt); | |
910 | return -1; | |
911 | } | |
912 | ||
913 | #ifdef CONFIG_IEEE80211W | |
914 | if (!(ie->capabilities & WPA_CAPABILITY_MFPC) && | |
915 | (ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ? | |
916 | wpa_s->conf->pmf : ssid->ieee80211w) == | |
917 | MGMT_FRAME_PROTECTION_REQUIRED) { | |
918 | wpa_msg(wpa_s, MSG_INFO, "WPA: Driver associated with an AP " | |
919 | "that does not support management frame protection - " | |
920 | "reject"); | |
921 | return -1; | |
922 | } | |
923 | #endif /* CONFIG_IEEE80211W */ | |
924 | ||
925 | return 0; | |
926 | } | |
927 | ||
928 | ||
929 | /** | |
930 | * wpa_supplicant_set_suites - Set authentication and encryption parameters | |
931 | * @wpa_s: Pointer to wpa_supplicant data | |
932 | * @bss: Scan results for the selected BSS, or %NULL if not available | |
933 | * @ssid: Configuration data for the selected network | |
934 | * @wpa_ie: Buffer for the WPA/RSN IE | |
935 | * @wpa_ie_len: Maximum wpa_ie buffer size on input. This is changed to be the | |
936 | * used buffer length in case the functions returns success. | |
937 | * Returns: 0 on success or -1 on failure | |
938 | * | |
939 | * This function is used to configure authentication and encryption parameters | |
940 | * based on the network configuration and scan result for the selected BSS (if | |
941 | * available). | |
942 | */ | |
943 | int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s, | |
944 | struct wpa_bss *bss, struct wpa_ssid *ssid, | |
945 | u8 *wpa_ie, size_t *wpa_ie_len) | |
946 | { | |
947 | struct wpa_ie_data ie; | |
948 | int sel, proto; | |
949 | const u8 *bss_wpa, *bss_rsn, *bss_osen; | |
950 | ||
951 | if (bss) { | |
952 | bss_wpa = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); | |
953 | bss_rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); | |
954 | bss_osen = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE); | |
955 | } else | |
956 | bss_wpa = bss_rsn = bss_osen = NULL; | |
957 | ||
958 | if (bss_rsn && (ssid->proto & WPA_PROTO_RSN) && | |
959 | wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie) == 0 && | |
960 | (ie.group_cipher & ssid->group_cipher) && | |
961 | (ie.pairwise_cipher & ssid->pairwise_cipher) && | |
962 | (ie.key_mgmt & ssid->key_mgmt)) { | |
963 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using IEEE 802.11i/D9.0"); | |
964 | proto = WPA_PROTO_RSN; | |
965 | } else if (bss_wpa && (ssid->proto & WPA_PROTO_WPA) && | |
966 | wpa_parse_wpa_ie(bss_wpa, 2 +bss_wpa[1], &ie) == 0 && | |
967 | (ie.group_cipher & ssid->group_cipher) && | |
968 | (ie.pairwise_cipher & ssid->pairwise_cipher) && | |
969 | (ie.key_mgmt & ssid->key_mgmt)) { | |
970 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using IEEE 802.11i/D3.0"); | |
971 | proto = WPA_PROTO_WPA; | |
972 | #ifdef CONFIG_HS20 | |
973 | } else if (bss_osen && (ssid->proto & WPA_PROTO_OSEN)) { | |
974 | wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: using OSEN"); | |
975 | /* TODO: parse OSEN element */ | |
976 | ie.group_cipher = WPA_CIPHER_CCMP; | |
977 | ie.pairwise_cipher = WPA_CIPHER_CCMP; | |
978 | ie.key_mgmt = WPA_KEY_MGMT_OSEN; | |
979 | proto = WPA_PROTO_OSEN; | |
980 | #endif /* CONFIG_HS20 */ | |
981 | } else if (bss) { | |
982 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select WPA/RSN"); | |
983 | return -1; | |
984 | } else { | |
985 | if (ssid->proto & WPA_PROTO_OSEN) | |
986 | proto = WPA_PROTO_OSEN; | |
987 | else if (ssid->proto & WPA_PROTO_RSN) | |
988 | proto = WPA_PROTO_RSN; | |
989 | else | |
990 | proto = WPA_PROTO_WPA; | |
991 | if (wpa_supplicant_suites_from_ai(wpa_s, ssid, &ie) < 0) { | |
992 | os_memset(&ie, 0, sizeof(ie)); | |
993 | ie.group_cipher = ssid->group_cipher; | |
994 | ie.pairwise_cipher = ssid->pairwise_cipher; | |
995 | ie.key_mgmt = ssid->key_mgmt; | |
996 | #ifdef CONFIG_IEEE80211W | |
997 | ie.mgmt_group_cipher = | |
998 | ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION ? | |
999 | WPA_CIPHER_AES_128_CMAC : 0; | |
1000 | #endif /* CONFIG_IEEE80211W */ | |
1001 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Set cipher suites " | |
1002 | "based on configuration"); | |
1003 | } else | |
1004 | proto = ie.proto; | |
1005 | } | |
1006 | ||
1007 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected cipher suites: group %d " | |
1008 | "pairwise %d key_mgmt %d proto %d", | |
1009 | ie.group_cipher, ie.pairwise_cipher, ie.key_mgmt, proto); | |
1010 | #ifdef CONFIG_IEEE80211W | |
1011 | if (ssid->ieee80211w) { | |
1012 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected mgmt group cipher %d", | |
1013 | ie.mgmt_group_cipher); | |
1014 | } | |
1015 | #endif /* CONFIG_IEEE80211W */ | |
1016 | ||
1017 | wpa_s->wpa_proto = proto; | |
1018 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, proto); | |
1019 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, | |
1020 | !!(ssid->proto & (WPA_PROTO_RSN | WPA_PROTO_OSEN))); | |
1021 | ||
1022 | if (bss || !wpa_s->ap_ies_from_associnfo) { | |
1023 | if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, | |
1024 | bss_wpa ? 2 + bss_wpa[1] : 0) || | |
1025 | wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, | |
1026 | bss_rsn ? 2 + bss_rsn[1] : 0)) | |
1027 | return -1; | |
1028 | } | |
1029 | ||
1030 | sel = ie.group_cipher & ssid->group_cipher; | |
1031 | wpa_s->group_cipher = wpa_pick_group_cipher(sel); | |
1032 | if (wpa_s->group_cipher < 0) { | |
1033 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select group " | |
1034 | "cipher"); | |
1035 | return -1; | |
1036 | } | |
1037 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK %s", | |
1038 | wpa_cipher_txt(wpa_s->group_cipher)); | |
1039 | ||
1040 | sel = ie.pairwise_cipher & ssid->pairwise_cipher; | |
1041 | wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(sel, 1); | |
1042 | if (wpa_s->pairwise_cipher < 0) { | |
1043 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select pairwise " | |
1044 | "cipher"); | |
1045 | return -1; | |
1046 | } | |
1047 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK %s", | |
1048 | wpa_cipher_txt(wpa_s->pairwise_cipher)); | |
1049 | ||
1050 | sel = ie.key_mgmt & ssid->key_mgmt; | |
1051 | #ifdef CONFIG_SAE | |
1052 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SAE)) | |
1053 | sel &= ~(WPA_KEY_MGMT_SAE | WPA_KEY_MGMT_FT_SAE); | |
1054 | #endif /* CONFIG_SAE */ | |
1055 | if (0) { | |
1056 | #ifdef CONFIG_IEEE80211R | |
1057 | } else if (sel & WPA_KEY_MGMT_FT_IEEE8021X) { | |
1058 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_IEEE8021X; | |
1059 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/802.1X"); | |
1060 | } else if (sel & WPA_KEY_MGMT_FT_PSK) { | |
1061 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_PSK; | |
1062 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/PSK"); | |
1063 | #endif /* CONFIG_IEEE80211R */ | |
1064 | #ifdef CONFIG_SAE | |
1065 | } else if (sel & WPA_KEY_MGMT_SAE) { | |
1066 | wpa_s->key_mgmt = WPA_KEY_MGMT_SAE; | |
1067 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using KEY_MGMT SAE"); | |
1068 | } else if (sel & WPA_KEY_MGMT_FT_SAE) { | |
1069 | wpa_s->key_mgmt = WPA_KEY_MGMT_FT_SAE; | |
1070 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using KEY_MGMT FT/SAE"); | |
1071 | #endif /* CONFIG_SAE */ | |
1072 | #ifdef CONFIG_IEEE80211W | |
1073 | } else if (sel & WPA_KEY_MGMT_IEEE8021X_SHA256) { | |
1074 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SHA256; | |
1075 | wpa_dbg(wpa_s, MSG_DEBUG, | |
1076 | "WPA: using KEY_MGMT 802.1X with SHA256"); | |
1077 | } else if (sel & WPA_KEY_MGMT_PSK_SHA256) { | |
1078 | wpa_s->key_mgmt = WPA_KEY_MGMT_PSK_SHA256; | |
1079 | wpa_dbg(wpa_s, MSG_DEBUG, | |
1080 | "WPA: using KEY_MGMT PSK with SHA256"); | |
1081 | #endif /* CONFIG_IEEE80211W */ | |
1082 | } else if (sel & WPA_KEY_MGMT_IEEE8021X) { | |
1083 | wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X; | |
1084 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT 802.1X"); | |
1085 | } else if (sel & WPA_KEY_MGMT_PSK) { | |
1086 | wpa_s->key_mgmt = WPA_KEY_MGMT_PSK; | |
1087 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-PSK"); | |
1088 | } else if (sel & WPA_KEY_MGMT_WPA_NONE) { | |
1089 | wpa_s->key_mgmt = WPA_KEY_MGMT_WPA_NONE; | |
1090 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-NONE"); | |
1091 | #ifdef CONFIG_HS20 | |
1092 | } else if (sel & WPA_KEY_MGMT_OSEN) { | |
1093 | wpa_s->key_mgmt = WPA_KEY_MGMT_OSEN; | |
1094 | wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: using KEY_MGMT OSEN"); | |
1095 | #endif /* CONFIG_HS20 */ | |
1096 | } else { | |
1097 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select " | |
1098 | "authenticated key management type"); | |
1099 | return -1; | |
1100 | } | |
1101 | ||
1102 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt); | |
1103 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE, | |
1104 | wpa_s->pairwise_cipher); | |
1105 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher); | |
1106 | ||
1107 | #ifdef CONFIG_IEEE80211W | |
1108 | sel = ie.mgmt_group_cipher; | |
1109 | if ((ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ? | |
1110 | wpa_s->conf->pmf : ssid->ieee80211w) == NO_MGMT_FRAME_PROTECTION || | |
1111 | !(ie.capabilities & WPA_CAPABILITY_MFPC)) | |
1112 | sel = 0; | |
1113 | if (sel & WPA_CIPHER_AES_128_CMAC) { | |
1114 | wpa_s->mgmt_group_cipher = WPA_CIPHER_AES_128_CMAC; | |
1115 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher " | |
1116 | "AES-128-CMAC"); | |
1117 | } else if (sel & WPA_CIPHER_BIP_GMAC_128) { | |
1118 | wpa_s->mgmt_group_cipher = WPA_CIPHER_BIP_GMAC_128; | |
1119 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher " | |
1120 | "BIP-GMAC-128"); | |
1121 | } else if (sel & WPA_CIPHER_BIP_GMAC_256) { | |
1122 | wpa_s->mgmt_group_cipher = WPA_CIPHER_BIP_GMAC_256; | |
1123 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher " | |
1124 | "BIP-GMAC-256"); | |
1125 | } else if (sel & WPA_CIPHER_BIP_CMAC_256) { | |
1126 | wpa_s->mgmt_group_cipher = WPA_CIPHER_BIP_CMAC_256; | |
1127 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher " | |
1128 | "BIP-CMAC-256"); | |
1129 | } else { | |
1130 | wpa_s->mgmt_group_cipher = 0; | |
1131 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher"); | |
1132 | } | |
1133 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP, | |
1134 | wpa_s->mgmt_group_cipher); | |
1135 | wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MFP, | |
1136 | (ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ? | |
1137 | wpa_s->conf->pmf : ssid->ieee80211w)); | |
1138 | #endif /* CONFIG_IEEE80211W */ | |
1139 | ||
1140 | if (wpa_sm_set_assoc_wpa_ie_default(wpa_s->wpa, wpa_ie, wpa_ie_len)) { | |
1141 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to generate WPA IE"); | |
1142 | return -1; | |
1143 | } | |
1144 | ||
1145 | if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) { | |
1146 | wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN); | |
1147 | #ifndef CONFIG_NO_PBKDF2 | |
1148 | if (bss && ssid->bssid_set && ssid->ssid_len == 0 && | |
1149 | ssid->passphrase) { | |
1150 | u8 psk[PMK_LEN]; | |
1151 | pbkdf2_sha1(ssid->passphrase, bss->ssid, bss->ssid_len, | |
1152 | 4096, psk, PMK_LEN); | |
1153 | wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)", | |
1154 | psk, PMK_LEN); | |
1155 | wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN); | |
1156 | } | |
1157 | #endif /* CONFIG_NO_PBKDF2 */ | |
1158 | #ifdef CONFIG_EXT_PASSWORD | |
1159 | if (ssid->ext_psk) { | |
1160 | struct wpabuf *pw = ext_password_get(wpa_s->ext_pw, | |
1161 | ssid->ext_psk); | |
1162 | char pw_str[64 + 1]; | |
1163 | u8 psk[PMK_LEN]; | |
1164 | ||
1165 | if (pw == NULL) { | |
1166 | wpa_msg(wpa_s, MSG_INFO, "EXT PW: No PSK " | |
1167 | "found from external storage"); | |
1168 | return -1; | |
1169 | } | |
1170 | ||
1171 | if (wpabuf_len(pw) < 8 || wpabuf_len(pw) > 64) { | |
1172 | wpa_msg(wpa_s, MSG_INFO, "EXT PW: Unexpected " | |
1173 | "PSK length %d in external storage", | |
1174 | (int) wpabuf_len(pw)); | |
1175 | ext_password_free(pw); | |
1176 | return -1; | |
1177 | } | |
1178 | ||
1179 | os_memcpy(pw_str, wpabuf_head(pw), wpabuf_len(pw)); | |
1180 | pw_str[wpabuf_len(pw)] = '\0'; | |
1181 | ||
1182 | #ifndef CONFIG_NO_PBKDF2 | |
1183 | if (wpabuf_len(pw) >= 8 && wpabuf_len(pw) < 64 && bss) | |
1184 | { | |
1185 | pbkdf2_sha1(pw_str, bss->ssid, bss->ssid_len, | |
1186 | 4096, psk, PMK_LEN); | |
1187 | os_memset(pw_str, 0, sizeof(pw_str)); | |
1188 | wpa_hexdump_key(MSG_MSGDUMP, "PSK (from " | |
1189 | "external passphrase)", | |
1190 | psk, PMK_LEN); | |
1191 | wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN); | |
1192 | } else | |
1193 | #endif /* CONFIG_NO_PBKDF2 */ | |
1194 | if (wpabuf_len(pw) == 2 * PMK_LEN) { | |
1195 | if (hexstr2bin(pw_str, psk, PMK_LEN) < 0) { | |
1196 | wpa_msg(wpa_s, MSG_INFO, "EXT PW: " | |
1197 | "Invalid PSK hex string"); | |
1198 | os_memset(pw_str, 0, sizeof(pw_str)); | |
1199 | ext_password_free(pw); | |
1200 | return -1; | |
1201 | } | |
1202 | wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN); | |
1203 | } else { | |
1204 | wpa_msg(wpa_s, MSG_INFO, "EXT PW: No suitable " | |
1205 | "PSK available"); | |
1206 | os_memset(pw_str, 0, sizeof(pw_str)); | |
1207 | ext_password_free(pw); | |
1208 | return -1; | |
1209 | } | |
1210 | ||
1211 | os_memset(pw_str, 0, sizeof(pw_str)); | |
1212 | ext_password_free(pw); | |
1213 | } | |
1214 | #endif /* CONFIG_EXT_PASSWORD */ | |
1215 | } else | |
1216 | wpa_sm_set_pmk_from_pmksa(wpa_s->wpa); | |
1217 | ||
1218 | return 0; | |
1219 | } | |
1220 | ||
1221 | ||
1222 | static void wpas_ext_capab_byte(struct wpa_supplicant *wpa_s, u8 *pos, int idx) | |
1223 | { | |
1224 | *pos = 0x00; | |
1225 | ||
1226 | switch (idx) { | |
1227 | case 0: /* Bits 0-7 */ | |
1228 | break; | |
1229 | case 1: /* Bits 8-15 */ | |
1230 | break; | |
1231 | case 2: /* Bits 16-23 */ | |
1232 | #ifdef CONFIG_WNM | |
1233 | *pos |= 0x02; /* Bit 17 - WNM-Sleep Mode */ | |
1234 | *pos |= 0x08; /* Bit 19 - BSS Transition */ | |
1235 | #endif /* CONFIG_WNM */ | |
1236 | break; | |
1237 | case 3: /* Bits 24-31 */ | |
1238 | #ifdef CONFIG_WNM | |
1239 | *pos |= 0x02; /* Bit 25 - SSID List */ | |
1240 | #endif /* CONFIG_WNM */ | |
1241 | #ifdef CONFIG_INTERWORKING | |
1242 | if (wpa_s->conf->interworking) | |
1243 | *pos |= 0x80; /* Bit 31 - Interworking */ | |
1244 | #endif /* CONFIG_INTERWORKING */ | |
1245 | break; | |
1246 | case 4: /* Bits 32-39 */ | |
1247 | #ifdef CONFIG_INTERWORKING | |
1248 | if (wpa_s->drv_flags / WPA_DRIVER_FLAGS_QOS_MAPPING) | |
1249 | *pos |= 0x01; /* Bit 32 - QoS Map */ | |
1250 | #endif /* CONFIG_INTERWORKING */ | |
1251 | break; | |
1252 | case 5: /* Bits 40-47 */ | |
1253 | #ifdef CONFIG_HS20 | |
1254 | if (wpa_s->conf->hs20) | |
1255 | *pos |= 0x40; /* Bit 46 - WNM-Notification */ | |
1256 | #endif /* CONFIG_HS20 */ | |
1257 | break; | |
1258 | case 6: /* Bits 48-55 */ | |
1259 | break; | |
1260 | } | |
1261 | } | |
1262 | ||
1263 | ||
1264 | int wpas_build_ext_capab(struct wpa_supplicant *wpa_s, u8 *buf) | |
1265 | { | |
1266 | u8 *pos = buf; | |
1267 | u8 len = 6, i; | |
1268 | ||
1269 | if (len < wpa_s->extended_capa_len) | |
1270 | len = wpa_s->extended_capa_len; | |
1271 | ||
1272 | *pos++ = WLAN_EID_EXT_CAPAB; | |
1273 | *pos++ = len; | |
1274 | for (i = 0; i < len; i++, pos++) { | |
1275 | wpas_ext_capab_byte(wpa_s, pos, i); | |
1276 | ||
1277 | if (i < wpa_s->extended_capa_len) { | |
1278 | *pos &= ~wpa_s->extended_capa_mask[i]; | |
1279 | *pos |= wpa_s->extended_capa[i]; | |
1280 | } | |
1281 | } | |
1282 | ||
1283 | while (len > 0 && buf[1 + len] == 0) { | |
1284 | len--; | |
1285 | buf[1] = len; | |
1286 | } | |
1287 | if (len == 0) | |
1288 | return 0; | |
1289 | ||
1290 | return 2 + len; | |
1291 | } | |
1292 | ||
1293 | ||
1294 | static int wpas_valid_bss(struct wpa_supplicant *wpa_s, | |
1295 | struct wpa_bss *test_bss) | |
1296 | { | |
1297 | struct wpa_bss *bss; | |
1298 | ||
1299 | dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { | |
1300 | if (bss == test_bss) | |
1301 | return 1; | |
1302 | } | |
1303 | ||
1304 | return 0; | |
1305 | } | |
1306 | ||
1307 | ||
1308 | static int wpas_valid_ssid(struct wpa_supplicant *wpa_s, | |
1309 | struct wpa_ssid *test_ssid) | |
1310 | { | |
1311 | struct wpa_ssid *ssid; | |
1312 | ||
1313 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { | |
1314 | if (ssid == test_ssid) | |
1315 | return 1; | |
1316 | } | |
1317 | ||
1318 | return 0; | |
1319 | } | |
1320 | ||
1321 | ||
1322 | int wpas_valid_bss_ssid(struct wpa_supplicant *wpa_s, struct wpa_bss *test_bss, | |
1323 | struct wpa_ssid *test_ssid) | |
1324 | { | |
1325 | if (test_bss && !wpas_valid_bss(wpa_s, test_bss)) | |
1326 | return 0; | |
1327 | ||
1328 | return test_ssid == NULL || wpas_valid_ssid(wpa_s, test_ssid); | |
1329 | } | |
1330 | ||
1331 | ||
1332 | void wpas_connect_work_free(struct wpa_connect_work *cwork) | |
1333 | { | |
1334 | if (cwork == NULL) | |
1335 | return; | |
1336 | os_free(cwork); | |
1337 | } | |
1338 | ||
1339 | ||
1340 | void wpas_connect_work_done(struct wpa_supplicant *wpa_s) | |
1341 | { | |
1342 | struct wpa_connect_work *cwork; | |
1343 | struct wpa_radio_work *work = wpa_s->connect_work; | |
1344 | ||
1345 | if (!work) | |
1346 | return; | |
1347 | ||
1348 | wpa_s->connect_work = NULL; | |
1349 | cwork = work->ctx; | |
1350 | work->ctx = NULL; | |
1351 | wpas_connect_work_free(cwork); | |
1352 | radio_work_done(work); | |
1353 | } | |
1354 | ||
1355 | ||
1356 | static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit); | |
1357 | ||
1358 | /** | |
1359 | * wpa_supplicant_associate - Request association | |
1360 | * @wpa_s: Pointer to wpa_supplicant data | |
1361 | * @bss: Scan results for the selected BSS, or %NULL if not available | |
1362 | * @ssid: Configuration data for the selected network | |
1363 | * | |
1364 | * This function is used to request %wpa_supplicant to associate with a BSS. | |
1365 | */ | |
1366 | void wpa_supplicant_associate(struct wpa_supplicant *wpa_s, | |
1367 | struct wpa_bss *bss, struct wpa_ssid *ssid) | |
1368 | { | |
1369 | struct wpa_connect_work *cwork; | |
1370 | ||
1371 | #ifdef CONFIG_IBSS_RSN | |
1372 | ibss_rsn_deinit(wpa_s->ibss_rsn); | |
1373 | wpa_s->ibss_rsn = NULL; | |
1374 | #endif /* CONFIG_IBSS_RSN */ | |
1375 | ||
1376 | if (ssid->mode == WPAS_MODE_AP || ssid->mode == WPAS_MODE_P2P_GO || | |
1377 | ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) { | |
1378 | #ifdef CONFIG_AP | |
1379 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP)) { | |
1380 | wpa_msg(wpa_s, MSG_INFO, "Driver does not support AP " | |
1381 | "mode"); | |
1382 | return; | |
1383 | } | |
1384 | if (wpa_supplicant_create_ap(wpa_s, ssid) < 0) { | |
1385 | wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); | |
1386 | if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) | |
1387 | wpas_p2p_ap_setup_failed(wpa_s); | |
1388 | return; | |
1389 | } | |
1390 | wpa_s->current_bss = bss; | |
1391 | #else /* CONFIG_AP */ | |
1392 | wpa_msg(wpa_s, MSG_ERROR, "AP mode support not included in " | |
1393 | "the build"); | |
1394 | #endif /* CONFIG_AP */ | |
1395 | return; | |
1396 | } | |
1397 | ||
1398 | #ifdef CONFIG_TDLS | |
1399 | if (bss) | |
1400 | wpa_tdls_ap_ies(wpa_s->wpa, (const u8 *) (bss + 1), | |
1401 | bss->ie_len); | |
1402 | #endif /* CONFIG_TDLS */ | |
1403 | ||
1404 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && | |
1405 | ssid->mode == IEEE80211_MODE_INFRA) { | |
1406 | sme_authenticate(wpa_s, bss, ssid); | |
1407 | return; | |
1408 | } | |
1409 | ||
1410 | if (wpa_s->connect_work) { | |
1411 | wpa_dbg(wpa_s, MSG_DEBUG, "Reject wpa_supplicant_associate() call since connect_work exist"); | |
1412 | return; | |
1413 | } | |
1414 | ||
1415 | if (radio_work_pending(wpa_s, "connect")) { | |
1416 | wpa_dbg(wpa_s, MSG_DEBUG, "Reject wpa_supplicant_associate() call since pending work exist"); | |
1417 | return; | |
1418 | } | |
1419 | ||
1420 | cwork = os_zalloc(sizeof(*cwork)); | |
1421 | if (cwork == NULL) | |
1422 | return; | |
1423 | ||
1424 | cwork->bss = bss; | |
1425 | cwork->ssid = ssid; | |
1426 | ||
1427 | if (radio_add_work(wpa_s, bss ? bss->freq : 0, "connect", 1, | |
1428 | wpas_start_assoc_cb, cwork) < 0) { | |
1429 | os_free(cwork); | |
1430 | } | |
1431 | } | |
1432 | ||
1433 | ||
1434 | static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit) | |
1435 | { | |
1436 | struct wpa_connect_work *cwork = work->ctx; | |
1437 | struct wpa_bss *bss = cwork->bss; | |
1438 | struct wpa_ssid *ssid = cwork->ssid; | |
1439 | struct wpa_supplicant *wpa_s = work->wpa_s; | |
1440 | u8 wpa_ie[200]; | |
1441 | size_t wpa_ie_len; | |
1442 | int use_crypt, ret, i, bssid_changed; | |
1443 | int algs = WPA_AUTH_ALG_OPEN; | |
1444 | unsigned int cipher_pairwise, cipher_group; | |
1445 | struct wpa_driver_associate_params params; | |
1446 | int wep_keys_set = 0; | |
1447 | int assoc_failed = 0; | |
1448 | struct wpa_ssid *old_ssid; | |
1449 | #ifdef CONFIG_HT_OVERRIDES | |
1450 | struct ieee80211_ht_capabilities htcaps; | |
1451 | struct ieee80211_ht_capabilities htcaps_mask; | |
1452 | #endif /* CONFIG_HT_OVERRIDES */ | |
1453 | #ifdef CONFIG_VHT_OVERRIDES | |
1454 | struct ieee80211_vht_capabilities vhtcaps; | |
1455 | struct ieee80211_vht_capabilities vhtcaps_mask; | |
1456 | #endif /* CONFIG_VHT_OVERRIDES */ | |
1457 | ||
1458 | if (deinit) { | |
1459 | if (work->started) { | |
1460 | wpa_s->connect_work = NULL; | |
1461 | ||
1462 | /* cancel possible auth. timeout */ | |
1463 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, | |
1464 | NULL); | |
1465 | } | |
1466 | wpas_connect_work_free(cwork); | |
1467 | return; | |
1468 | } | |
1469 | ||
1470 | wpa_s->connect_work = work; | |
1471 | ||
1472 | if (!wpas_valid_bss_ssid(wpa_s, bss, ssid)) { | |
1473 | wpa_dbg(wpa_s, MSG_DEBUG, "BSS/SSID entry for association not valid anymore - drop connection attempt"); | |
1474 | wpas_connect_work_done(wpa_s); | |
1475 | return; | |
1476 | } | |
1477 | ||
1478 | os_memset(¶ms, 0, sizeof(params)); | |
1479 | wpa_s->reassociate = 0; | |
1480 | wpa_s->eap_expected_failure = 0; | |
1481 | if (bss && !wpas_driver_bss_selection(wpa_s)) { | |
1482 | #ifdef CONFIG_IEEE80211R | |
1483 | const u8 *ie, *md = NULL; | |
1484 | #endif /* CONFIG_IEEE80211R */ | |
1485 | wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR | |
1486 | " (SSID='%s' freq=%d MHz)", MAC2STR(bss->bssid), | |
1487 | wpa_ssid_txt(bss->ssid, bss->ssid_len), bss->freq); | |
1488 | bssid_changed = !is_zero_ether_addr(wpa_s->bssid); | |
1489 | os_memset(wpa_s->bssid, 0, ETH_ALEN); | |
1490 | os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN); | |
1491 | if (bssid_changed) | |
1492 | wpas_notify_bssid_changed(wpa_s); | |
1493 | #ifdef CONFIG_IEEE80211R | |
1494 | ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN); | |
1495 | if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN) | |
1496 | md = ie + 2; | |
1497 | wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0); | |
1498 | if (md) { | |
1499 | /* Prepare for the next transition */ | |
1500 | wpa_ft_prepare_auth_request(wpa_s->wpa, ie); | |
1501 | } | |
1502 | #endif /* CONFIG_IEEE80211R */ | |
1503 | #ifdef CONFIG_WPS | |
1504 | } else if ((ssid->ssid == NULL || ssid->ssid_len == 0) && | |
1505 | wpa_s->conf->ap_scan == 2 && | |
1506 | (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { | |
1507 | /* Use ap_scan==1 style network selection to find the network | |
1508 | */ | |
1509 | wpa_s->scan_req = MANUAL_SCAN_REQ; | |
1510 | wpa_s->reassociate = 1; | |
1511 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
1512 | return; | |
1513 | #endif /* CONFIG_WPS */ | |
1514 | } else { | |
1515 | wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'", | |
1516 | wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); | |
1517 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); | |
1518 | } | |
1519 | wpa_supplicant_cancel_sched_scan(wpa_s); | |
1520 | wpa_supplicant_cancel_scan(wpa_s); | |
1521 | ||
1522 | /* Starting new association, so clear the possibly used WPA IE from the | |
1523 | * previous association. */ | |
1524 | wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); | |
1525 | ||
1526 | #ifdef IEEE8021X_EAPOL | |
1527 | if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1528 | if (ssid->leap) { | |
1529 | if (ssid->non_leap == 0) | |
1530 | algs = WPA_AUTH_ALG_LEAP; | |
1531 | else | |
1532 | algs |= WPA_AUTH_ALG_LEAP; | |
1533 | } | |
1534 | } | |
1535 | #endif /* IEEE8021X_EAPOL */ | |
1536 | wpa_dbg(wpa_s, MSG_DEBUG, "Automatic auth_alg selection: 0x%x", algs); | |
1537 | if (ssid->auth_alg) { | |
1538 | algs = ssid->auth_alg; | |
1539 | wpa_dbg(wpa_s, MSG_DEBUG, "Overriding auth_alg selection: " | |
1540 | "0x%x", algs); | |
1541 | } | |
1542 | ||
1543 | if (bss && (wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) || | |
1544 | wpa_bss_get_ie(bss, WLAN_EID_RSN)) && | |
1545 | wpa_key_mgmt_wpa(ssid->key_mgmt)) { | |
1546 | int try_opportunistic; | |
1547 | try_opportunistic = (ssid->proactive_key_caching < 0 ? | |
1548 | wpa_s->conf->okc : | |
1549 | ssid->proactive_key_caching) && | |
1550 | (ssid->proto & WPA_PROTO_RSN); | |
1551 | if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid, | |
1552 | ssid, try_opportunistic) == 0) | |
1553 | eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1); | |
1554 | wpa_ie_len = sizeof(wpa_ie); | |
1555 | if (wpa_supplicant_set_suites(wpa_s, bss, ssid, | |
1556 | wpa_ie, &wpa_ie_len)) { | |
1557 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA " | |
1558 | "key management and encryption suites"); | |
1559 | return; | |
1560 | } | |
1561 | } else if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && bss && | |
1562 | wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt)) { | |
1563 | /* | |
1564 | * Both WPA and non-WPA IEEE 802.1X enabled in configuration - | |
1565 | * use non-WPA since the scan results did not indicate that the | |
1566 | * AP is using WPA or WPA2. | |
1567 | */ | |
1568 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
1569 | wpa_ie_len = 0; | |
1570 | wpa_s->wpa_proto = 0; | |
1571 | } else if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) { | |
1572 | wpa_ie_len = sizeof(wpa_ie); | |
1573 | if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, | |
1574 | wpa_ie, &wpa_ie_len)) { | |
1575 | wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA " | |
1576 | "key management and encryption suites (no " | |
1577 | "scan results)"); | |
1578 | return; | |
1579 | } | |
1580 | #ifdef CONFIG_WPS | |
1581 | } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) { | |
1582 | struct wpabuf *wps_ie; | |
1583 | wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid)); | |
1584 | if (wps_ie && wpabuf_len(wps_ie) <= sizeof(wpa_ie)) { | |
1585 | wpa_ie_len = wpabuf_len(wps_ie); | |
1586 | os_memcpy(wpa_ie, wpabuf_head(wps_ie), wpa_ie_len); | |
1587 | } else | |
1588 | wpa_ie_len = 0; | |
1589 | wpabuf_free(wps_ie); | |
1590 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
1591 | if (!bss || (bss->caps & IEEE80211_CAP_PRIVACY)) | |
1592 | params.wps = WPS_MODE_PRIVACY; | |
1593 | else | |
1594 | params.wps = WPS_MODE_OPEN; | |
1595 | wpa_s->wpa_proto = 0; | |
1596 | #endif /* CONFIG_WPS */ | |
1597 | } else { | |
1598 | wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); | |
1599 | wpa_ie_len = 0; | |
1600 | wpa_s->wpa_proto = 0; | |
1601 | } | |
1602 | ||
1603 | #ifdef CONFIG_P2P | |
1604 | if (wpa_s->global->p2p) { | |
1605 | u8 *pos; | |
1606 | size_t len; | |
1607 | int res; | |
1608 | pos = wpa_ie + wpa_ie_len; | |
1609 | len = sizeof(wpa_ie) - wpa_ie_len; | |
1610 | res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len, | |
1611 | ssid->p2p_group); | |
1612 | if (res >= 0) | |
1613 | wpa_ie_len += res; | |
1614 | } | |
1615 | ||
1616 | wpa_s->cross_connect_disallowed = 0; | |
1617 | if (bss) { | |
1618 | struct wpabuf *p2p; | |
1619 | p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE); | |
1620 | if (p2p) { | |
1621 | wpa_s->cross_connect_disallowed = | |
1622 | p2p_get_cross_connect_disallowed(p2p); | |
1623 | wpabuf_free(p2p); | |
1624 | wpa_dbg(wpa_s, MSG_DEBUG, "P2P: WLAN AP %s cross " | |
1625 | "connection", | |
1626 | wpa_s->cross_connect_disallowed ? | |
1627 | "disallows" : "allows"); | |
1628 | } | |
1629 | } | |
1630 | ||
1631 | os_memset(wpa_s->p2p_ip_addr_info, 0, sizeof(wpa_s->p2p_ip_addr_info)); | |
1632 | #endif /* CONFIG_P2P */ | |
1633 | ||
1634 | #ifdef CONFIG_HS20 | |
1635 | if (is_hs20_network(wpa_s, ssid, bss)) { | |
1636 | struct wpabuf *hs20; | |
1637 | hs20 = wpabuf_alloc(20); | |
1638 | if (hs20) { | |
1639 | int pps_mo_id = hs20_get_pps_mo_id(wpa_s, ssid); | |
1640 | wpas_hs20_add_indication(hs20, pps_mo_id); | |
1641 | os_memcpy(wpa_ie + wpa_ie_len, wpabuf_head(hs20), | |
1642 | wpabuf_len(hs20)); | |
1643 | wpa_ie_len += wpabuf_len(hs20); | |
1644 | wpabuf_free(hs20); | |
1645 | } | |
1646 | } | |
1647 | #endif /* CONFIG_HS20 */ | |
1648 | ||
1649 | /* | |
1650 | * Workaround: Add Extended Capabilities element only if the AP | |
1651 | * included this element in Beacon/Probe Response frames. Some older | |
1652 | * APs seem to have interoperability issues if this element is | |
1653 | * included, so while the standard may require us to include the | |
1654 | * element in all cases, it is justifiable to skip it to avoid | |
1655 | * interoperability issues. | |
1656 | */ | |
1657 | if (!bss || wpa_bss_get_ie(bss, WLAN_EID_EXT_CAPAB)) { | |
1658 | u8 ext_capab[10]; | |
1659 | int ext_capab_len; | |
1660 | ext_capab_len = wpas_build_ext_capab(wpa_s, ext_capab); | |
1661 | if (ext_capab_len > 0) { | |
1662 | u8 *pos = wpa_ie; | |
1663 | if (wpa_ie_len > 0 && pos[0] == WLAN_EID_RSN) | |
1664 | pos += 2 + pos[1]; | |
1665 | os_memmove(pos + ext_capab_len, pos, | |
1666 | wpa_ie_len - (pos - wpa_ie)); | |
1667 | wpa_ie_len += ext_capab_len; | |
1668 | os_memcpy(pos, ext_capab, ext_capab_len); | |
1669 | } | |
1670 | } | |
1671 | ||
1672 | wpa_clear_keys(wpa_s, bss ? bss->bssid : NULL); | |
1673 | use_crypt = 1; | |
1674 | cipher_pairwise = wpa_s->pairwise_cipher; | |
1675 | cipher_group = wpa_s->group_cipher; | |
1676 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || | |
1677 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1678 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) | |
1679 | use_crypt = 0; | |
1680 | if (wpa_set_wep_keys(wpa_s, ssid)) { | |
1681 | use_crypt = 1; | |
1682 | wep_keys_set = 1; | |
1683 | } | |
1684 | } | |
1685 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) | |
1686 | use_crypt = 0; | |
1687 | ||
1688 | #ifdef IEEE8021X_EAPOL | |
1689 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
1690 | if ((ssid->eapol_flags & | |
1691 | (EAPOL_FLAG_REQUIRE_KEY_UNICAST | | |
1692 | EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) == 0 && | |
1693 | !wep_keys_set) { | |
1694 | use_crypt = 0; | |
1695 | } else { | |
1696 | /* Assume that dynamic WEP-104 keys will be used and | |
1697 | * set cipher suites in order for drivers to expect | |
1698 | * encryption. */ | |
1699 | cipher_pairwise = cipher_group = WPA_CIPHER_WEP104; | |
1700 | } | |
1701 | } | |
1702 | #endif /* IEEE8021X_EAPOL */ | |
1703 | ||
1704 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
1705 | /* Set the key before (and later after) association */ | |
1706 | wpa_supplicant_set_wpa_none_key(wpa_s, ssid); | |
1707 | } | |
1708 | ||
1709 | wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING); | |
1710 | if (bss) { | |
1711 | params.ssid = bss->ssid; | |
1712 | params.ssid_len = bss->ssid_len; | |
1713 | if (!wpas_driver_bss_selection(wpa_s) || ssid->bssid_set) { | |
1714 | wpa_printf(MSG_DEBUG, "Limit connection to BSSID " | |
1715 | MACSTR " freq=%u MHz based on scan results " | |
1716 | "(bssid_set=%d)", | |
1717 | MAC2STR(bss->bssid), bss->freq, | |
1718 | ssid->bssid_set); | |
1719 | params.bssid = bss->bssid; | |
1720 | params.freq = bss->freq; | |
1721 | } | |
1722 | params.bssid_hint = bss->bssid; | |
1723 | params.freq_hint = bss->freq; | |
1724 | } else { | |
1725 | params.ssid = ssid->ssid; | |
1726 | params.ssid_len = ssid->ssid_len; | |
1727 | } | |
1728 | ||
1729 | if (ssid->mode == WPAS_MODE_IBSS && ssid->bssid_set && | |
1730 | wpa_s->conf->ap_scan == 2) { | |
1731 | params.bssid = ssid->bssid; | |
1732 | params.fixed_bssid = 1; | |
1733 | } | |
1734 | ||
1735 | if (ssid->mode == WPAS_MODE_IBSS && ssid->frequency > 0 && | |
1736 | params.freq == 0) | |
1737 | params.freq = ssid->frequency; /* Initial channel for IBSS */ | |
1738 | ||
1739 | if (ssid->mode == WPAS_MODE_IBSS) { | |
1740 | if (ssid->beacon_int) | |
1741 | params.beacon_int = ssid->beacon_int; | |
1742 | else | |
1743 | params.beacon_int = wpa_s->conf->beacon_int; | |
1744 | } | |
1745 | ||
1746 | params.wpa_ie = wpa_ie; | |
1747 | params.wpa_ie_len = wpa_ie_len; | |
1748 | params.pairwise_suite = cipher_pairwise; | |
1749 | params.group_suite = cipher_group; | |
1750 | params.key_mgmt_suite = wpa_s->key_mgmt; | |
1751 | params.wpa_proto = wpa_s->wpa_proto; | |
1752 | params.auth_alg = algs; | |
1753 | params.mode = ssid->mode; | |
1754 | params.bg_scan_period = ssid->bg_scan_period; | |
1755 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
1756 | if (ssid->wep_key_len[i]) | |
1757 | params.wep_key[i] = ssid->wep_key[i]; | |
1758 | params.wep_key_len[i] = ssid->wep_key_len[i]; | |
1759 | } | |
1760 | params.wep_tx_keyidx = ssid->wep_tx_keyidx; | |
1761 | ||
1762 | if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && | |
1763 | (params.key_mgmt_suite == WPA_KEY_MGMT_PSK || | |
1764 | params.key_mgmt_suite == WPA_KEY_MGMT_FT_PSK)) { | |
1765 | params.passphrase = ssid->passphrase; | |
1766 | if (ssid->psk_set) | |
1767 | params.psk = ssid->psk; | |
1768 | } | |
1769 | ||
1770 | params.drop_unencrypted = use_crypt; | |
1771 | ||
1772 | #ifdef CONFIG_IEEE80211W | |
1773 | params.mgmt_frame_protection = | |
1774 | ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ? | |
1775 | wpa_s->conf->pmf : ssid->ieee80211w; | |
1776 | if (params.mgmt_frame_protection != NO_MGMT_FRAME_PROTECTION && bss) { | |
1777 | const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); | |
1778 | struct wpa_ie_data ie; | |
1779 | if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ie) == 0 && | |
1780 | ie.capabilities & | |
1781 | (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) { | |
1782 | wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected AP supports " | |
1783 | "MFP: require MFP"); | |
1784 | params.mgmt_frame_protection = | |
1785 | MGMT_FRAME_PROTECTION_REQUIRED; | |
1786 | } | |
1787 | } | |
1788 | #endif /* CONFIG_IEEE80211W */ | |
1789 | ||
1790 | params.p2p = ssid->p2p_group; | |
1791 | ||
1792 | if (wpa_s->parent->set_sta_uapsd) | |
1793 | params.uapsd = wpa_s->parent->sta_uapsd; | |
1794 | else | |
1795 | params.uapsd = -1; | |
1796 | ||
1797 | #ifdef CONFIG_HT_OVERRIDES | |
1798 | os_memset(&htcaps, 0, sizeof(htcaps)); | |
1799 | os_memset(&htcaps_mask, 0, sizeof(htcaps_mask)); | |
1800 | params.htcaps = (u8 *) &htcaps; | |
1801 | params.htcaps_mask = (u8 *) &htcaps_mask; | |
1802 | wpa_supplicant_apply_ht_overrides(wpa_s, ssid, ¶ms); | |
1803 | #endif /* CONFIG_HT_OVERRIDES */ | |
1804 | #ifdef CONFIG_VHT_OVERRIDES | |
1805 | os_memset(&vhtcaps, 0, sizeof(vhtcaps)); | |
1806 | os_memset(&vhtcaps_mask, 0, sizeof(vhtcaps_mask)); | |
1807 | params.vhtcaps = &vhtcaps; | |
1808 | params.vhtcaps_mask = &vhtcaps_mask; | |
1809 | wpa_supplicant_apply_vht_overrides(wpa_s, wpa_s->current_ssid, ¶ms); | |
1810 | #endif /* CONFIG_VHT_OVERRIDES */ | |
1811 | ||
1812 | #ifdef CONFIG_P2P | |
1813 | /* | |
1814 | * If multi-channel concurrency is not supported, check for any | |
1815 | * frequency conflict. In case of any frequency conflict, remove the | |
1816 | * least prioritized connection. | |
1817 | */ | |
1818 | if (wpa_s->num_multichan_concurrent < 2) { | |
1819 | int freq = wpa_drv_shared_freq(wpa_s); | |
1820 | if (freq > 0 && freq != params.freq) { | |
1821 | wpa_printf(MSG_DEBUG, "Shared interface with conflicting frequency found (%d != %d)", | |
1822 | freq, params.freq); | |
1823 | if (wpas_p2p_handle_frequency_conflicts(wpa_s, | |
1824 | params.freq, | |
1825 | ssid) < 0) | |
1826 | return; | |
1827 | } | |
1828 | } | |
1829 | #endif /* CONFIG_P2P */ | |
1830 | ||
1831 | ret = wpa_drv_associate(wpa_s, ¶ms); | |
1832 | if (ret < 0) { | |
1833 | wpa_msg(wpa_s, MSG_INFO, "Association request to the driver " | |
1834 | "failed"); | |
1835 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SANE_ERROR_CODES) { | |
1836 | /* | |
1837 | * The driver is known to mean what is saying, so we | |
1838 | * can stop right here; the association will not | |
1839 | * succeed. | |
1840 | */ | |
1841 | wpas_connection_failed(wpa_s, wpa_s->pending_bssid); | |
1842 | wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); | |
1843 | os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); | |
1844 | return; | |
1845 | } | |
1846 | /* try to continue anyway; new association will be tried again | |
1847 | * after timeout */ | |
1848 | assoc_failed = 1; | |
1849 | } | |
1850 | ||
1851 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { | |
1852 | /* Set the key after the association just in case association | |
1853 | * cleared the previously configured key. */ | |
1854 | wpa_supplicant_set_wpa_none_key(wpa_s, ssid); | |
1855 | /* No need to timeout authentication since there is no key | |
1856 | * management. */ | |
1857 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
1858 | wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); | |
1859 | #ifdef CONFIG_IBSS_RSN | |
1860 | } else if (ssid->mode == WPAS_MODE_IBSS && | |
1861 | wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && | |
1862 | wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) { | |
1863 | /* | |
1864 | * RSN IBSS authentication is per-STA and we can disable the | |
1865 | * per-BSSID authentication. | |
1866 | */ | |
1867 | wpa_supplicant_cancel_auth_timeout(wpa_s); | |
1868 | #endif /* CONFIG_IBSS_RSN */ | |
1869 | } else { | |
1870 | /* Timeout for IEEE 802.11 authentication and association */ | |
1871 | int timeout = 60; | |
1872 | ||
1873 | if (assoc_failed) { | |
1874 | /* give IBSS a bit more time */ | |
1875 | timeout = ssid->mode == WPAS_MODE_IBSS ? 10 : 5; | |
1876 | } else if (wpa_s->conf->ap_scan == 1) { | |
1877 | /* give IBSS a bit more time */ | |
1878 | timeout = ssid->mode == WPAS_MODE_IBSS ? 20 : 10; | |
1879 | } | |
1880 | wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0); | |
1881 | } | |
1882 | ||
1883 | if (wep_keys_set && | |
1884 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC)) { | |
1885 | /* Set static WEP keys again */ | |
1886 | wpa_set_wep_keys(wpa_s, ssid); | |
1887 | } | |
1888 | ||
1889 | if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) { | |
1890 | /* | |
1891 | * Do not allow EAP session resumption between different | |
1892 | * network configurations. | |
1893 | */ | |
1894 | eapol_sm_invalidate_cached_session(wpa_s->eapol); | |
1895 | } | |
1896 | old_ssid = wpa_s->current_ssid; | |
1897 | wpa_s->current_ssid = ssid; | |
1898 | wpa_s->current_bss = bss; | |
1899 | wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); | |
1900 | wpa_supplicant_initiate_eapol(wpa_s); | |
1901 | if (old_ssid != wpa_s->current_ssid) | |
1902 | wpas_notify_network_changed(wpa_s); | |
1903 | } | |
1904 | ||
1905 | ||
1906 | static void wpa_supplicant_clear_connection(struct wpa_supplicant *wpa_s, | |
1907 | const u8 *addr) | |
1908 | { | |
1909 | struct wpa_ssid *old_ssid; | |
1910 | ||
1911 | wpa_clear_keys(wpa_s, addr); | |
1912 | old_ssid = wpa_s->current_ssid; | |
1913 | wpa_supplicant_mark_disassoc(wpa_s); | |
1914 | wpa_sm_set_config(wpa_s->wpa, NULL); | |
1915 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
1916 | if (old_ssid != wpa_s->current_ssid) | |
1917 | wpas_notify_network_changed(wpa_s); | |
1918 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
1919 | } | |
1920 | ||
1921 | ||
1922 | /** | |
1923 | * wpa_supplicant_deauthenticate - Deauthenticate the current connection | |
1924 | * @wpa_s: Pointer to wpa_supplicant data | |
1925 | * @reason_code: IEEE 802.11 reason code for the deauthenticate frame | |
1926 | * | |
1927 | * This function is used to request %wpa_supplicant to deauthenticate from the | |
1928 | * current AP. | |
1929 | */ | |
1930 | void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s, | |
1931 | int reason_code) | |
1932 | { | |
1933 | u8 *addr = NULL; | |
1934 | union wpa_event_data event; | |
1935 | int zero_addr = 0; | |
1936 | ||
1937 | wpa_dbg(wpa_s, MSG_DEBUG, "Request to deauthenticate - bssid=" MACSTR | |
1938 | " pending_bssid=" MACSTR " reason=%d state=%s", | |
1939 | MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid), | |
1940 | reason_code, wpa_supplicant_state_txt(wpa_s->wpa_state)); | |
1941 | ||
1942 | if (!is_zero_ether_addr(wpa_s->bssid)) | |
1943 | addr = wpa_s->bssid; | |
1944 | else if (!is_zero_ether_addr(wpa_s->pending_bssid) && | |
1945 | (wpa_s->wpa_state == WPA_AUTHENTICATING || | |
1946 | wpa_s->wpa_state == WPA_ASSOCIATING)) | |
1947 | addr = wpa_s->pending_bssid; | |
1948 | else if (wpa_s->wpa_state == WPA_ASSOCIATING) { | |
1949 | /* | |
1950 | * When using driver-based BSS selection, we may not know the | |
1951 | * BSSID with which we are currently trying to associate. We | |
1952 | * need to notify the driver of this disconnection even in such | |
1953 | * a case, so use the all zeros address here. | |
1954 | */ | |
1955 | addr = wpa_s->bssid; | |
1956 | zero_addr = 1; | |
1957 | } | |
1958 | ||
1959 | #ifdef CONFIG_TDLS | |
1960 | wpa_tdls_teardown_peers(wpa_s->wpa); | |
1961 | #endif /* CONFIG_TDLS */ | |
1962 | ||
1963 | if (addr) { | |
1964 | wpa_drv_deauthenticate(wpa_s, addr, reason_code); | |
1965 | os_memset(&event, 0, sizeof(event)); | |
1966 | event.deauth_info.reason_code = (u16) reason_code; | |
1967 | event.deauth_info.locally_generated = 1; | |
1968 | wpa_supplicant_event(wpa_s, EVENT_DEAUTH, &event); | |
1969 | if (zero_addr) | |
1970 | addr = NULL; | |
1971 | } | |
1972 | ||
1973 | wpa_supplicant_clear_connection(wpa_s, addr); | |
1974 | } | |
1975 | ||
1976 | static void wpa_supplicant_enable_one_network(struct wpa_supplicant *wpa_s, | |
1977 | struct wpa_ssid *ssid) | |
1978 | { | |
1979 | if (!ssid || !ssid->disabled || ssid->disabled == 2) | |
1980 | return; | |
1981 | ||
1982 | ssid->disabled = 0; | |
1983 | wpas_clear_temp_disabled(wpa_s, ssid, 1); | |
1984 | wpas_notify_network_enabled_changed(wpa_s, ssid); | |
1985 | ||
1986 | /* | |
1987 | * Try to reassociate since there is no current configuration and a new | |
1988 | * network was made available. | |
1989 | */ | |
1990 | if (!wpa_s->current_ssid && !wpa_s->disconnected) | |
1991 | wpa_s->reassociate = 1; | |
1992 | } | |
1993 | ||
1994 | ||
1995 | /** | |
1996 | * wpa_supplicant_enable_network - Mark a configured network as enabled | |
1997 | * @wpa_s: wpa_supplicant structure for a network interface | |
1998 | * @ssid: wpa_ssid structure for a configured network or %NULL | |
1999 | * | |
2000 | * Enables the specified network or all networks if no network specified. | |
2001 | */ | |
2002 | void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s, | |
2003 | struct wpa_ssid *ssid) | |
2004 | { | |
2005 | if (ssid == NULL) { | |
2006 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) | |
2007 | wpa_supplicant_enable_one_network(wpa_s, ssid); | |
2008 | } else | |
2009 | wpa_supplicant_enable_one_network(wpa_s, ssid); | |
2010 | ||
2011 | if (wpa_s->reassociate && !wpa_s->disconnected) { | |
2012 | if (wpa_s->sched_scanning) { | |
2013 | wpa_printf(MSG_DEBUG, "Stop ongoing sched_scan to add " | |
2014 | "new network to scan filters"); | |
2015 | wpa_supplicant_cancel_sched_scan(wpa_s); | |
2016 | } | |
2017 | ||
2018 | if (wpa_supplicant_fast_associate(wpa_s) != 1) | |
2019 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
2020 | } | |
2021 | } | |
2022 | ||
2023 | ||
2024 | /** | |
2025 | * wpa_supplicant_disable_network - Mark a configured network as disabled | |
2026 | * @wpa_s: wpa_supplicant structure for a network interface | |
2027 | * @ssid: wpa_ssid structure for a configured network or %NULL | |
2028 | * | |
2029 | * Disables the specified network or all networks if no network specified. | |
2030 | */ | |
2031 | void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s, | |
2032 | struct wpa_ssid *ssid) | |
2033 | { | |
2034 | struct wpa_ssid *other_ssid; | |
2035 | int was_disabled; | |
2036 | ||
2037 | if (ssid == NULL) { | |
2038 | if (wpa_s->sched_scanning) | |
2039 | wpa_supplicant_cancel_sched_scan(wpa_s); | |
2040 | ||
2041 | for (other_ssid = wpa_s->conf->ssid; other_ssid; | |
2042 | other_ssid = other_ssid->next) { | |
2043 | was_disabled = other_ssid->disabled; | |
2044 | if (was_disabled == 2) | |
2045 | continue; /* do not change persistent P2P group | |
2046 | * data */ | |
2047 | ||
2048 | other_ssid->disabled = 1; | |
2049 | ||
2050 | if (was_disabled != other_ssid->disabled) | |
2051 | wpas_notify_network_enabled_changed( | |
2052 | wpa_s, other_ssid); | |
2053 | } | |
2054 | if (wpa_s->current_ssid) | |
2055 | wpa_supplicant_deauthenticate( | |
2056 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
2057 | } else if (ssid->disabled != 2) { | |
2058 | if (ssid == wpa_s->current_ssid) | |
2059 | wpa_supplicant_deauthenticate( | |
2060 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
2061 | ||
2062 | was_disabled = ssid->disabled; | |
2063 | ||
2064 | ssid->disabled = 1; | |
2065 | ||
2066 | if (was_disabled != ssid->disabled) { | |
2067 | wpas_notify_network_enabled_changed(wpa_s, ssid); | |
2068 | if (wpa_s->sched_scanning) { | |
2069 | wpa_printf(MSG_DEBUG, "Stop ongoing sched_scan " | |
2070 | "to remove network from filters"); | |
2071 | wpa_supplicant_cancel_sched_scan(wpa_s); | |
2072 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
2073 | } | |
2074 | } | |
2075 | } | |
2076 | } | |
2077 | ||
2078 | ||
2079 | /** | |
2080 | * wpa_supplicant_select_network - Attempt association with a network | |
2081 | * @wpa_s: wpa_supplicant structure for a network interface | |
2082 | * @ssid: wpa_ssid structure for a configured network or %NULL for any network | |
2083 | */ | |
2084 | void wpa_supplicant_select_network(struct wpa_supplicant *wpa_s, | |
2085 | struct wpa_ssid *ssid) | |
2086 | { | |
2087 | ||
2088 | struct wpa_ssid *other_ssid; | |
2089 | int disconnected = 0; | |
2090 | ||
2091 | if (ssid && ssid != wpa_s->current_ssid && wpa_s->current_ssid) { | |
2092 | wpa_supplicant_deauthenticate( | |
2093 | wpa_s, WLAN_REASON_DEAUTH_LEAVING); | |
2094 | disconnected = 1; | |
2095 | } | |
2096 | ||
2097 | if (ssid) | |
2098 | wpas_clear_temp_disabled(wpa_s, ssid, 1); | |
2099 | ||
2100 | /* | |
2101 | * Mark all other networks disabled or mark all networks enabled if no | |
2102 | * network specified. | |
2103 | */ | |
2104 | for (other_ssid = wpa_s->conf->ssid; other_ssid; | |
2105 | other_ssid = other_ssid->next) { | |
2106 | int was_disabled = other_ssid->disabled; | |
2107 | if (was_disabled == 2) | |
2108 | continue; /* do not change persistent P2P group data */ | |
2109 | ||
2110 | other_ssid->disabled = ssid ? (ssid->id != other_ssid->id) : 0; | |
2111 | if (was_disabled && !other_ssid->disabled) | |
2112 | wpas_clear_temp_disabled(wpa_s, other_ssid, 0); | |
2113 | ||
2114 | if (was_disabled != other_ssid->disabled) | |
2115 | wpas_notify_network_enabled_changed(wpa_s, other_ssid); | |
2116 | } | |
2117 | ||
2118 | if (ssid && ssid == wpa_s->current_ssid && wpa_s->current_ssid) { | |
2119 | /* We are already associated with the selected network */ | |
2120 | wpa_printf(MSG_DEBUG, "Already associated with the " | |
2121 | "selected network - do nothing"); | |
2122 | return; | |
2123 | } | |
2124 | ||
2125 | if (ssid) { | |
2126 | wpa_s->current_ssid = ssid; | |
2127 | eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); | |
2128 | } | |
2129 | wpa_s->connect_without_scan = NULL; | |
2130 | wpa_s->disconnected = 0; | |
2131 | wpa_s->reassociate = 1; | |
2132 | ||
2133 | if (wpa_supplicant_fast_associate(wpa_s) != 1) | |
2134 | wpa_supplicant_req_scan(wpa_s, 0, disconnected ? 100000 : 0); | |
2135 | ||
2136 | if (ssid) | |
2137 | wpas_notify_network_selected(wpa_s, ssid); | |
2138 | } | |
2139 | ||
2140 | ||
2141 | /** | |
2142 | * wpas_set_pkcs11_engine_and_module_path - Set PKCS #11 engine and module path | |
2143 | * @wpa_s: wpa_supplicant structure for a network interface | |
2144 | * @pkcs11_engine_path: PKCS #11 engine path or NULL | |
2145 | * @pkcs11_module_path: PKCS #11 module path or NULL | |
2146 | * Returns: 0 on success; -1 on failure | |
2147 | * | |
2148 | * Sets the PKCS #11 engine and module path. Both have to be NULL or a valid | |
2149 | * path. If resetting the EAPOL state machine with the new PKCS #11 engine and | |
2150 | * module path fails the paths will be reset to the default value (NULL). | |
2151 | */ | |
2152 | int wpas_set_pkcs11_engine_and_module_path(struct wpa_supplicant *wpa_s, | |
2153 | const char *pkcs11_engine_path, | |
2154 | const char *pkcs11_module_path) | |
2155 | { | |
2156 | char *pkcs11_engine_path_copy = NULL; | |
2157 | char *pkcs11_module_path_copy = NULL; | |
2158 | ||
2159 | if (pkcs11_engine_path != NULL) { | |
2160 | pkcs11_engine_path_copy = os_strdup(pkcs11_engine_path); | |
2161 | if (pkcs11_engine_path_copy == NULL) | |
2162 | return -1; | |
2163 | } | |
2164 | if (pkcs11_module_path != NULL) { | |
2165 | pkcs11_module_path_copy = os_strdup(pkcs11_module_path); | |
2166 | if (pkcs11_module_path_copy == NULL) { | |
2167 | os_free(pkcs11_engine_path_copy); | |
2168 | return -1; | |
2169 | } | |
2170 | } | |
2171 | ||
2172 | os_free(wpa_s->conf->pkcs11_engine_path); | |
2173 | os_free(wpa_s->conf->pkcs11_module_path); | |
2174 | wpa_s->conf->pkcs11_engine_path = pkcs11_engine_path_copy; | |
2175 | wpa_s->conf->pkcs11_module_path = pkcs11_module_path_copy; | |
2176 | ||
2177 | wpa_sm_set_eapol(wpa_s->wpa, NULL); | |
2178 | eapol_sm_deinit(wpa_s->eapol); | |
2179 | wpa_s->eapol = NULL; | |
2180 | if (wpa_supplicant_init_eapol(wpa_s)) { | |
2181 | /* Error -> Reset paths to the default value (NULL) once. */ | |
2182 | if (pkcs11_engine_path != NULL && pkcs11_module_path != NULL) | |
2183 | wpas_set_pkcs11_engine_and_module_path(wpa_s, NULL, | |
2184 | NULL); | |
2185 | ||
2186 | return -1; | |
2187 | } | |
2188 | wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol); | |
2189 | ||
2190 | return 0; | |
2191 | } | |
2192 | ||
2193 | ||
2194 | /** | |
2195 | * wpa_supplicant_set_ap_scan - Set AP scan mode for interface | |
2196 | * @wpa_s: wpa_supplicant structure for a network interface | |
2197 | * @ap_scan: AP scan mode | |
2198 | * Returns: 0 if succeed or -1 if ap_scan has an invalid value | |
2199 | * | |
2200 | */ | |
2201 | int wpa_supplicant_set_ap_scan(struct wpa_supplicant *wpa_s, int ap_scan) | |
2202 | { | |
2203 | ||
2204 | int old_ap_scan; | |
2205 | ||
2206 | if (ap_scan < 0 || ap_scan > 2) | |
2207 | return -1; | |
2208 | ||
2209 | #ifdef ANDROID | |
2210 | if (ap_scan == 2 && ap_scan != wpa_s->conf->ap_scan && | |
2211 | wpa_s->wpa_state >= WPA_ASSOCIATING && | |
2212 | wpa_s->wpa_state < WPA_COMPLETED) { | |
2213 | wpa_printf(MSG_ERROR, "ap_scan = %d (%d) rejected while " | |
2214 | "associating", wpa_s->conf->ap_scan, ap_scan); | |
2215 | return 0; | |
2216 | } | |
2217 | #endif /* ANDROID */ | |
2218 | ||
2219 | old_ap_scan = wpa_s->conf->ap_scan; | |
2220 | wpa_s->conf->ap_scan = ap_scan; | |
2221 | ||
2222 | if (old_ap_scan != wpa_s->conf->ap_scan) | |
2223 | wpas_notify_ap_scan_changed(wpa_s); | |
2224 | ||
2225 | return 0; | |
2226 | } | |
2227 | ||
2228 | ||
2229 | /** | |
2230 | * wpa_supplicant_set_bss_expiration_age - Set BSS entry expiration age | |
2231 | * @wpa_s: wpa_supplicant structure for a network interface | |
2232 | * @expire_age: Expiration age in seconds | |
2233 | * Returns: 0 if succeed or -1 if expire_age has an invalid value | |
2234 | * | |
2235 | */ | |
2236 | int wpa_supplicant_set_bss_expiration_age(struct wpa_supplicant *wpa_s, | |
2237 | unsigned int bss_expire_age) | |
2238 | { | |
2239 | if (bss_expire_age < 10) { | |
2240 | wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration age %u", | |
2241 | bss_expire_age); | |
2242 | return -1; | |
2243 | } | |
2244 | wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration age: %d sec", | |
2245 | bss_expire_age); | |
2246 | wpa_s->conf->bss_expiration_age = bss_expire_age; | |
2247 | ||
2248 | return 0; | |
2249 | } | |
2250 | ||
2251 | ||
2252 | /** | |
2253 | * wpa_supplicant_set_bss_expiration_count - Set BSS entry expiration scan count | |
2254 | * @wpa_s: wpa_supplicant structure for a network interface | |
2255 | * @expire_count: number of scans after which an unseen BSS is reclaimed | |
2256 | * Returns: 0 if succeed or -1 if expire_count has an invalid value | |
2257 | * | |
2258 | */ | |
2259 | int wpa_supplicant_set_bss_expiration_count(struct wpa_supplicant *wpa_s, | |
2260 | unsigned int bss_expire_count) | |
2261 | { | |
2262 | if (bss_expire_count < 1) { | |
2263 | wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration count %u", | |
2264 | bss_expire_count); | |
2265 | return -1; | |
2266 | } | |
2267 | wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration scan count: %u", | |
2268 | bss_expire_count); | |
2269 | wpa_s->conf->bss_expiration_scan_count = bss_expire_count; | |
2270 | ||
2271 | return 0; | |
2272 | } | |
2273 | ||
2274 | ||
2275 | /** | |
2276 | * wpa_supplicant_set_scan_interval - Set scan interval | |
2277 | * @wpa_s: wpa_supplicant structure for a network interface | |
2278 | * @scan_interval: scan interval in seconds | |
2279 | * Returns: 0 if succeed or -1 if scan_interval has an invalid value | |
2280 | * | |
2281 | */ | |
2282 | int wpa_supplicant_set_scan_interval(struct wpa_supplicant *wpa_s, | |
2283 | int scan_interval) | |
2284 | { | |
2285 | if (scan_interval < 0) { | |
2286 | wpa_msg(wpa_s, MSG_ERROR, "Invalid scan interval %d", | |
2287 | scan_interval); | |
2288 | return -1; | |
2289 | } | |
2290 | wpa_msg(wpa_s, MSG_DEBUG, "Setting scan interval: %d sec", | |
2291 | scan_interval); | |
2292 | wpa_supplicant_update_scan_int(wpa_s, scan_interval); | |
2293 | ||
2294 | return 0; | |
2295 | } | |
2296 | ||
2297 | ||
2298 | /** | |
2299 | * wpa_supplicant_set_debug_params - Set global debug params | |
2300 | * @global: wpa_global structure | |
2301 | * @debug_level: debug level | |
2302 | * @debug_timestamp: determines if show timestamp in debug data | |
2303 | * @debug_show_keys: determines if show keys in debug data | |
2304 | * Returns: 0 if succeed or -1 if debug_level has wrong value | |
2305 | */ | |
2306 | int wpa_supplicant_set_debug_params(struct wpa_global *global, int debug_level, | |
2307 | int debug_timestamp, int debug_show_keys) | |
2308 | { | |
2309 | ||
2310 | int old_level, old_timestamp, old_show_keys; | |
2311 | ||
2312 | /* check for allowed debuglevels */ | |
2313 | if (debug_level != MSG_EXCESSIVE && | |
2314 | debug_level != MSG_MSGDUMP && | |
2315 | debug_level != MSG_DEBUG && | |
2316 | debug_level != MSG_INFO && | |
2317 | debug_level != MSG_WARNING && | |
2318 | debug_level != MSG_ERROR) | |
2319 | return -1; | |
2320 | ||
2321 | old_level = wpa_debug_level; | |
2322 | old_timestamp = wpa_debug_timestamp; | |
2323 | old_show_keys = wpa_debug_show_keys; | |
2324 | ||
2325 | wpa_debug_level = debug_level; | |
2326 | wpa_debug_timestamp = debug_timestamp ? 1 : 0; | |
2327 | wpa_debug_show_keys = debug_show_keys ? 1 : 0; | |
2328 | ||
2329 | if (wpa_debug_level != old_level) | |
2330 | wpas_notify_debug_level_changed(global); | |
2331 | if (wpa_debug_timestamp != old_timestamp) | |
2332 | wpas_notify_debug_timestamp_changed(global); | |
2333 | if (wpa_debug_show_keys != old_show_keys) | |
2334 | wpas_notify_debug_show_keys_changed(global); | |
2335 | ||
2336 | return 0; | |
2337 | } | |
2338 | ||
2339 | ||
2340 | /** | |
2341 | * wpa_supplicant_get_ssid - Get a pointer to the current network structure | |
2342 | * @wpa_s: Pointer to wpa_supplicant data | |
2343 | * Returns: A pointer to the current network structure or %NULL on failure | |
2344 | */ | |
2345 | struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s) | |
2346 | { | |
2347 | struct wpa_ssid *entry; | |
2348 | u8 ssid[MAX_SSID_LEN]; | |
2349 | int res; | |
2350 | size_t ssid_len; | |
2351 | u8 bssid[ETH_ALEN]; | |
2352 | int wired; | |
2353 | ||
2354 | res = wpa_drv_get_ssid(wpa_s, ssid); | |
2355 | if (res < 0) { | |
2356 | wpa_msg(wpa_s, MSG_WARNING, "Could not read SSID from " | |
2357 | "driver"); | |
2358 | return NULL; | |
2359 | } | |
2360 | ssid_len = res; | |
2361 | ||
2362 | if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { | |
2363 | wpa_msg(wpa_s, MSG_WARNING, "Could not read BSSID from " | |
2364 | "driver"); | |
2365 | return NULL; | |
2366 | } | |
2367 | ||
2368 | wired = wpa_s->conf->ap_scan == 0 && | |
2369 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED); | |
2370 | ||
2371 | entry = wpa_s->conf->ssid; | |
2372 | while (entry) { | |
2373 | if (!wpas_network_disabled(wpa_s, entry) && | |
2374 | ((ssid_len == entry->ssid_len && | |
2375 | os_memcmp(ssid, entry->ssid, ssid_len) == 0) || wired) && | |
2376 | (!entry->bssid_set || | |
2377 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) | |
2378 | return entry; | |
2379 | #ifdef CONFIG_WPS | |
2380 | if (!wpas_network_disabled(wpa_s, entry) && | |
2381 | (entry->key_mgmt & WPA_KEY_MGMT_WPS) && | |
2382 | (entry->ssid == NULL || entry->ssid_len == 0) && | |
2383 | (!entry->bssid_set || | |
2384 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)) | |
2385 | return entry; | |
2386 | #endif /* CONFIG_WPS */ | |
2387 | ||
2388 | if (!wpas_network_disabled(wpa_s, entry) && entry->bssid_set && | |
2389 | entry->ssid_len == 0 && | |
2390 | os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0) | |
2391 | return entry; | |
2392 | ||
2393 | entry = entry->next; | |
2394 | } | |
2395 | ||
2396 | return NULL; | |
2397 | } | |
2398 | ||
2399 | ||
2400 | static int select_driver(struct wpa_supplicant *wpa_s, int i) | |
2401 | { | |
2402 | struct wpa_global *global = wpa_s->global; | |
2403 | ||
2404 | if (wpa_drivers[i]->global_init && global->drv_priv[i] == NULL) { | |
2405 | global->drv_priv[i] = wpa_drivers[i]->global_init(); | |
2406 | if (global->drv_priv[i] == NULL) { | |
2407 | wpa_printf(MSG_ERROR, "Failed to initialize driver " | |
2408 | "'%s'", wpa_drivers[i]->name); | |
2409 | return -1; | |
2410 | } | |
2411 | } | |
2412 | ||
2413 | wpa_s->driver = wpa_drivers[i]; | |
2414 | wpa_s->global_drv_priv = global->drv_priv[i]; | |
2415 | ||
2416 | return 0; | |
2417 | } | |
2418 | ||
2419 | ||
2420 | static int wpa_supplicant_set_driver(struct wpa_supplicant *wpa_s, | |
2421 | const char *name) | |
2422 | { | |
2423 | int i; | |
2424 | size_t len; | |
2425 | const char *pos, *driver = name; | |
2426 | ||
2427 | if (wpa_s == NULL) | |
2428 | return -1; | |
2429 | ||
2430 | if (wpa_drivers[0] == NULL) { | |
2431 | wpa_msg(wpa_s, MSG_ERROR, "No driver interfaces build into " | |
2432 | "wpa_supplicant"); | |
2433 | return -1; | |
2434 | } | |
2435 | ||
2436 | if (name == NULL) { | |
2437 | /* default to first driver in the list */ | |
2438 | return select_driver(wpa_s, 0); | |
2439 | } | |
2440 | ||
2441 | do { | |
2442 | pos = os_strchr(driver, ','); | |
2443 | if (pos) | |
2444 | len = pos - driver; | |
2445 | else | |
2446 | len = os_strlen(driver); | |
2447 | ||
2448 | for (i = 0; wpa_drivers[i]; i++) { | |
2449 | if (os_strlen(wpa_drivers[i]->name) == len && | |
2450 | os_strncmp(driver, wpa_drivers[i]->name, len) == | |
2451 | 0) { | |
2452 | /* First driver that succeeds wins */ | |
2453 | if (select_driver(wpa_s, i) == 0) | |
2454 | return 0; | |
2455 | } | |
2456 | } | |
2457 | ||
2458 | driver = pos + 1; | |
2459 | } while (pos); | |
2460 | ||
2461 | wpa_msg(wpa_s, MSG_ERROR, "Unsupported driver '%s'", name); | |
2462 | return -1; | |
2463 | } | |
2464 | ||
2465 | ||
2466 | /** | |
2467 | * wpa_supplicant_rx_eapol - Deliver a received EAPOL frame to wpa_supplicant | |
2468 | * @ctx: Context pointer (wpa_s); this is the ctx variable registered | |
2469 | * with struct wpa_driver_ops::init() | |
2470 | * @src_addr: Source address of the EAPOL frame | |
2471 | * @buf: EAPOL data starting from the EAPOL header (i.e., no Ethernet header) | |
2472 | * @len: Length of the EAPOL data | |
2473 | * | |
2474 | * This function is called for each received EAPOL frame. Most driver | |
2475 | * interfaces rely on more generic OS mechanism for receiving frames through | |
2476 | * l2_packet, but if such a mechanism is not available, the driver wrapper may | |
2477 | * take care of received EAPOL frames and deliver them to the core supplicant | |
2478 | * code by calling this function. | |
2479 | */ | |
2480 | void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr, | |
2481 | const u8 *buf, size_t len) | |
2482 | { | |
2483 | struct wpa_supplicant *wpa_s = ctx; | |
2484 | ||
2485 | wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR, MAC2STR(src_addr)); | |
2486 | wpa_hexdump(MSG_MSGDUMP, "RX EAPOL", buf, len); | |
2487 | ||
2488 | #ifdef CONFIG_PEERKEY | |
2489 | if (wpa_s->wpa_state > WPA_ASSOCIATED && wpa_s->current_ssid && | |
2490 | wpa_s->current_ssid->peerkey && | |
2491 | !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && | |
2492 | wpa_sm_rx_eapol_peerkey(wpa_s->wpa, src_addr, buf, len) == 1) { | |
2493 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: Processed PeerKey EAPOL-Key"); | |
2494 | return; | |
2495 | } | |
2496 | #endif /* CONFIG_PEERKEY */ | |
2497 | ||
2498 | if (wpa_s->wpa_state < WPA_ASSOCIATED || | |
2499 | (wpa_s->last_eapol_matches_bssid && | |
2500 | #ifdef CONFIG_AP | |
2501 | !wpa_s->ap_iface && | |
2502 | #endif /* CONFIG_AP */ | |
2503 | os_memcmp(src_addr, wpa_s->bssid, ETH_ALEN) != 0)) { | |
2504 | /* | |
2505 | * There is possible race condition between receiving the | |
2506 | * association event and the EAPOL frame since they are coming | |
2507 | * through different paths from the driver. In order to avoid | |
2508 | * issues in trying to process the EAPOL frame before receiving | |
2509 | * association information, lets queue it for processing until | |
2510 | * the association event is received. This may also be needed in | |
2511 | * driver-based roaming case, so also use src_addr != BSSID as a | |
2512 | * trigger if we have previously confirmed that the | |
2513 | * Authenticator uses BSSID as the src_addr (which is not the | |
2514 | * case with wired IEEE 802.1X). | |
2515 | */ | |
2516 | wpa_dbg(wpa_s, MSG_DEBUG, "Not associated - Delay processing " | |
2517 | "of received EAPOL frame (state=%s bssid=" MACSTR ")", | |
2518 | wpa_supplicant_state_txt(wpa_s->wpa_state), | |
2519 | MAC2STR(wpa_s->bssid)); | |
2520 | wpabuf_free(wpa_s->pending_eapol_rx); | |
2521 | wpa_s->pending_eapol_rx = wpabuf_alloc_copy(buf, len); | |
2522 | if (wpa_s->pending_eapol_rx) { | |
2523 | os_get_reltime(&wpa_s->pending_eapol_rx_time); | |
2524 | os_memcpy(wpa_s->pending_eapol_rx_src, src_addr, | |
2525 | ETH_ALEN); | |
2526 | } | |
2527 | return; | |
2528 | } | |
2529 | ||
2530 | wpa_s->last_eapol_matches_bssid = | |
2531 | os_memcmp(src_addr, wpa_s->bssid, ETH_ALEN) == 0; | |
2532 | ||
2533 | #ifdef CONFIG_AP | |
2534 | if (wpa_s->ap_iface) { | |
2535 | wpa_supplicant_ap_rx_eapol(wpa_s, src_addr, buf, len); | |
2536 | return; | |
2537 | } | |
2538 | #endif /* CONFIG_AP */ | |
2539 | ||
2540 | if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) { | |
2541 | wpa_dbg(wpa_s, MSG_DEBUG, "Ignored received EAPOL frame since " | |
2542 | "no key management is configured"); | |
2543 | return; | |
2544 | } | |
2545 | ||
2546 | if (wpa_s->eapol_received == 0 && | |
2547 | (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) || | |
2548 | !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || | |
2549 | wpa_s->wpa_state != WPA_COMPLETED) && | |
2550 | (wpa_s->current_ssid == NULL || | |
2551 | wpa_s->current_ssid->mode != IEEE80211_MODE_IBSS)) { | |
2552 | /* Timeout for completing IEEE 802.1X and WPA authentication */ | |
2553 | wpa_supplicant_req_auth_timeout( | |
2554 | wpa_s, | |
2555 | (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || | |
2556 | wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA || | |
2557 | wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) ? | |
2558 | 70 : 10, 0); | |
2559 | } | |
2560 | wpa_s->eapol_received++; | |
2561 | ||
2562 | if (wpa_s->countermeasures) { | |
2563 | wpa_msg(wpa_s, MSG_INFO, "WPA: Countermeasures - dropped " | |
2564 | "EAPOL packet"); | |
2565 | return; | |
2566 | } | |
2567 | ||
2568 | #ifdef CONFIG_IBSS_RSN | |
2569 | if (wpa_s->current_ssid && | |
2570 | wpa_s->current_ssid->mode == WPAS_MODE_IBSS) { | |
2571 | ibss_rsn_rx_eapol(wpa_s->ibss_rsn, src_addr, buf, len); | |
2572 | return; | |
2573 | } | |
2574 | #endif /* CONFIG_IBSS_RSN */ | |
2575 | ||
2576 | /* Source address of the incoming EAPOL frame could be compared to the | |
2577 | * current BSSID. However, it is possible that a centralized | |
2578 | * Authenticator could be using another MAC address than the BSSID of | |
2579 | * an AP, so just allow any address to be used for now. The replies are | |
2580 | * still sent to the current BSSID (if available), though. */ | |
2581 | ||
2582 | os_memcpy(wpa_s->last_eapol_src, src_addr, ETH_ALEN); | |
2583 | if (!wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) && | |
2584 | eapol_sm_rx_eapol(wpa_s->eapol, src_addr, buf, len) > 0) | |
2585 | return; | |
2586 | wpa_drv_poll(wpa_s); | |
2587 | if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE)) | |
2588 | wpa_sm_rx_eapol(wpa_s->wpa, src_addr, buf, len); | |
2589 | else if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { | |
2590 | /* | |
2591 | * Set portValid = TRUE here since we are going to skip 4-way | |
2592 | * handshake processing which would normally set portValid. We | |
2593 | * need this to allow the EAPOL state machines to be completed | |
2594 | * without going through EAPOL-Key handshake. | |
2595 | */ | |
2596 | eapol_sm_notify_portValid(wpa_s->eapol, TRUE); | |
2597 | } | |
2598 | } | |
2599 | ||
2600 | ||
2601 | int wpa_supplicant_update_mac_addr(struct wpa_supplicant *wpa_s) | |
2602 | { | |
2603 | if (wpa_s->driver->send_eapol) { | |
2604 | const u8 *addr = wpa_drv_get_mac_addr(wpa_s); | |
2605 | if (addr) | |
2606 | os_memcpy(wpa_s->own_addr, addr, ETH_ALEN); | |
2607 | } else if ((!wpa_s->p2p_mgmt || | |
2608 | !(wpa_s->drv_flags & | |
2609 | WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) && | |
2610 | !(wpa_s->drv_flags & | |
2611 | WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)) { | |
2612 | l2_packet_deinit(wpa_s->l2); | |
2613 | wpa_s->l2 = l2_packet_init(wpa_s->ifname, | |
2614 | wpa_drv_get_mac_addr(wpa_s), | |
2615 | ETH_P_EAPOL, | |
2616 | wpa_supplicant_rx_eapol, wpa_s, 0); | |
2617 | if (wpa_s->l2 == NULL) | |
2618 | return -1; | |
2619 | } else { | |
2620 | const u8 *addr = wpa_drv_get_mac_addr(wpa_s); | |
2621 | if (addr) | |
2622 | os_memcpy(wpa_s->own_addr, addr, ETH_ALEN); | |
2623 | } | |
2624 | ||
2625 | if (wpa_s->l2 && l2_packet_get_own_addr(wpa_s->l2, wpa_s->own_addr)) { | |
2626 | wpa_msg(wpa_s, MSG_ERROR, "Failed to get own L2 address"); | |
2627 | return -1; | |
2628 | } | |
2629 | ||
2630 | return 0; | |
2631 | } | |
2632 | ||
2633 | ||
2634 | static void wpa_supplicant_rx_eapol_bridge(void *ctx, const u8 *src_addr, | |
2635 | const u8 *buf, size_t len) | |
2636 | { | |
2637 | struct wpa_supplicant *wpa_s = ctx; | |
2638 | const struct l2_ethhdr *eth; | |
2639 | ||
2640 | if (len < sizeof(*eth)) | |
2641 | return; | |
2642 | eth = (const struct l2_ethhdr *) buf; | |
2643 | ||
2644 | if (os_memcmp(eth->h_dest, wpa_s->own_addr, ETH_ALEN) != 0 && | |
2645 | !(eth->h_dest[0] & 0x01)) { | |
2646 | wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR " to " MACSTR | |
2647 | " (bridge - not for this interface - ignore)", | |
2648 | MAC2STR(src_addr), MAC2STR(eth->h_dest)); | |
2649 | return; | |
2650 | } | |
2651 | ||
2652 | wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR " to " MACSTR | |
2653 | " (bridge)", MAC2STR(src_addr), MAC2STR(eth->h_dest)); | |
2654 | wpa_supplicant_rx_eapol(wpa_s, src_addr, buf + sizeof(*eth), | |
2655 | len - sizeof(*eth)); | |
2656 | } | |
2657 | ||
2658 | ||
2659 | /** | |
2660 | * wpa_supplicant_driver_init - Initialize driver interface parameters | |
2661 | * @wpa_s: Pointer to wpa_supplicant data | |
2662 | * Returns: 0 on success, -1 on failure | |
2663 | * | |
2664 | * This function is called to initialize driver interface parameters. | |
2665 | * wpa_drv_init() must have been called before this function to initialize the | |
2666 | * driver interface. | |
2667 | */ | |
2668 | int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s) | |
2669 | { | |
2670 | static int interface_count = 0; | |
2671 | ||
2672 | if (wpa_supplicant_update_mac_addr(wpa_s) < 0) | |
2673 | return -1; | |
2674 | ||
2675 | wpa_dbg(wpa_s, MSG_DEBUG, "Own MAC address: " MACSTR, | |
2676 | MAC2STR(wpa_s->own_addr)); | |
2677 | wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr); | |
2678 | ||
2679 | if (wpa_s->bridge_ifname[0]) { | |
2680 | wpa_dbg(wpa_s, MSG_DEBUG, "Receiving packets from bridge " | |
2681 | "interface '%s'", wpa_s->bridge_ifname); | |
2682 | wpa_s->l2_br = l2_packet_init(wpa_s->bridge_ifname, | |
2683 | wpa_s->own_addr, | |
2684 | ETH_P_EAPOL, | |
2685 | wpa_supplicant_rx_eapol_bridge, | |
2686 | wpa_s, 1); | |
2687 | if (wpa_s->l2_br == NULL) { | |
2688 | wpa_msg(wpa_s, MSG_ERROR, "Failed to open l2_packet " | |
2689 | "connection for the bridge interface '%s'", | |
2690 | wpa_s->bridge_ifname); | |
2691 | return -1; | |
2692 | } | |
2693 | } | |
2694 | ||
2695 | wpa_clear_keys(wpa_s, NULL); | |
2696 | ||
2697 | /* Make sure that TKIP countermeasures are not left enabled (could | |
2698 | * happen if wpa_supplicant is killed during countermeasures. */ | |
2699 | wpa_drv_set_countermeasures(wpa_s, 0); | |
2700 | ||
2701 | wpa_dbg(wpa_s, MSG_DEBUG, "RSN: flushing PMKID list in the driver"); | |
2702 | wpa_drv_flush_pmkid(wpa_s); | |
2703 | ||
2704 | wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN; | |
2705 | wpa_s->prev_scan_wildcard = 0; | |
2706 | ||
2707 | if (wpa_supplicant_enabled_networks(wpa_s)) { | |
2708 | if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { | |
2709 | wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); | |
2710 | interface_count = 0; | |
2711 | } | |
2712 | if (!wpa_s->p2p_mgmt && | |
2713 | wpa_supplicant_delayed_sched_scan(wpa_s, | |
2714 | interface_count % 3, | |
2715 | 100000)) | |
2716 | wpa_supplicant_req_scan(wpa_s, interface_count % 3, | |
2717 | 100000); | |
2718 | interface_count++; | |
2719 | } else | |
2720 | wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); | |
2721 | ||
2722 | return 0; | |
2723 | } | |
2724 | ||
2725 | ||
2726 | static int wpa_supplicant_daemon(const char *pid_file) | |
2727 | { | |
2728 | wpa_printf(MSG_DEBUG, "Daemonize.."); | |
2729 | return os_daemonize(pid_file); | |
2730 | } | |
2731 | ||
2732 | ||
2733 | static struct wpa_supplicant * wpa_supplicant_alloc(void) | |
2734 | { | |
2735 | struct wpa_supplicant *wpa_s; | |
2736 | ||
2737 | wpa_s = os_zalloc(sizeof(*wpa_s)); | |
2738 | if (wpa_s == NULL) | |
2739 | return NULL; | |
2740 | wpa_s->scan_req = INITIAL_SCAN_REQ; | |
2741 | wpa_s->scan_interval = 5; | |
2742 | wpa_s->new_connection = 1; | |
2743 | wpa_s->parent = wpa_s; | |
2744 | wpa_s->sched_scanning = 0; | |
2745 | ||
2746 | return wpa_s; | |
2747 | } | |
2748 | ||
2749 | ||
2750 | #ifdef CONFIG_HT_OVERRIDES | |
2751 | ||
2752 | static int wpa_set_htcap_mcs(struct wpa_supplicant *wpa_s, | |
2753 | struct ieee80211_ht_capabilities *htcaps, | |
2754 | struct ieee80211_ht_capabilities *htcaps_mask, | |
2755 | const char *ht_mcs) | |
2756 | { | |
2757 | /* parse ht_mcs into hex array */ | |
2758 | int i; | |
2759 | const char *tmp = ht_mcs; | |
2760 | char *end = NULL; | |
2761 | ||
2762 | /* If ht_mcs is null, do not set anything */ | |
2763 | if (!ht_mcs) | |
2764 | return 0; | |
2765 | ||
2766 | /* This is what we are setting in the kernel */ | |
2767 | os_memset(&htcaps->supported_mcs_set, 0, IEEE80211_HT_MCS_MASK_LEN); | |
2768 | ||
2769 | wpa_msg(wpa_s, MSG_DEBUG, "set_htcap, ht_mcs -:%s:-", ht_mcs); | |
2770 | ||
2771 | for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) { | |
2772 | errno = 0; | |
2773 | long v = strtol(tmp, &end, 16); | |
2774 | if (errno == 0) { | |
2775 | wpa_msg(wpa_s, MSG_DEBUG, | |
2776 | "htcap value[%i]: %ld end: %p tmp: %p", | |
2777 | i, v, end, tmp); | |
2778 | if (end == tmp) | |
2779 | break; | |
2780 | ||
2781 | htcaps->supported_mcs_set[i] = v; | |
2782 | tmp = end; | |
2783 | } else { | |
2784 | wpa_msg(wpa_s, MSG_ERROR, | |
2785 | "Failed to parse ht-mcs: %s, error: %s\n", | |
2786 | ht_mcs, strerror(errno)); | |
2787 | return -1; | |
2788 | } | |
2789 | } | |
2790 | ||
2791 | /* | |
2792 | * If we were able to parse any values, then set mask for the MCS set. | |
2793 | */ | |
2794 | if (i) { | |
2795 | os_memset(&htcaps_mask->supported_mcs_set, 0xff, | |
2796 | IEEE80211_HT_MCS_MASK_LEN - 1); | |
2797 | /* skip the 3 reserved bits */ | |
2798 | htcaps_mask->supported_mcs_set[IEEE80211_HT_MCS_MASK_LEN - 1] = | |
2799 | 0x1f; | |
2800 | } | |
2801 | ||
2802 | return 0; | |
2803 | } | |
2804 | ||
2805 | ||
2806 | static int wpa_disable_max_amsdu(struct wpa_supplicant *wpa_s, | |
2807 | struct ieee80211_ht_capabilities *htcaps, | |
2808 | struct ieee80211_ht_capabilities *htcaps_mask, | |
2809 | int disabled) | |
2810 | { | |
2811 | u16 msk; | |
2812 | ||
2813 | wpa_msg(wpa_s, MSG_DEBUG, "set_disable_max_amsdu: %d", disabled); | |
2814 | ||
2815 | if (disabled == -1) | |
2816 | return 0; | |
2817 | ||
2818 | msk = host_to_le16(HT_CAP_INFO_MAX_AMSDU_SIZE); | |
2819 | htcaps_mask->ht_capabilities_info |= msk; | |
2820 | if (disabled) | |
2821 | htcaps->ht_capabilities_info &= msk; | |
2822 | else | |
2823 | htcaps->ht_capabilities_info |= msk; | |
2824 | ||
2825 | return 0; | |
2826 | } | |
2827 | ||
2828 | ||
2829 | static int wpa_set_ampdu_factor(struct wpa_supplicant *wpa_s, | |
2830 | struct ieee80211_ht_capabilities *htcaps, | |
2831 | struct ieee80211_ht_capabilities *htcaps_mask, | |
2832 | int factor) | |
2833 | { | |
2834 | wpa_msg(wpa_s, MSG_DEBUG, "set_ampdu_factor: %d", factor); | |
2835 | ||
2836 | if (factor == -1) | |
2837 | return 0; | |
2838 | ||
2839 | if (factor < 0 || factor > 3) { | |
2840 | wpa_msg(wpa_s, MSG_ERROR, "ampdu_factor: %d out of range. " | |
2841 | "Must be 0-3 or -1", factor); | |
2842 | return -EINVAL; | |
2843 | } | |
2844 | ||
2845 | htcaps_mask->a_mpdu_params |= 0x3; /* 2 bits for factor */ | |
2846 | htcaps->a_mpdu_params &= ~0x3; | |
2847 | htcaps->a_mpdu_params |= factor & 0x3; | |
2848 | ||
2849 | return 0; | |
2850 | } | |
2851 | ||
2852 | ||
2853 | static int wpa_set_ampdu_density(struct wpa_supplicant *wpa_s, | |
2854 | struct ieee80211_ht_capabilities *htcaps, | |
2855 | struct ieee80211_ht_capabilities *htcaps_mask, | |
2856 | int density) | |
2857 | { | |
2858 | wpa_msg(wpa_s, MSG_DEBUG, "set_ampdu_density: %d", density); | |
2859 | ||
2860 | if (density == -1) | |
2861 | return 0; | |
2862 | ||
2863 | if (density < 0 || density > 7) { | |
2864 | wpa_msg(wpa_s, MSG_ERROR, | |
2865 | "ampdu_density: %d out of range. Must be 0-7 or -1.", | |
2866 | density); | |
2867 | return -EINVAL; | |
2868 | } | |
2869 | ||
2870 | htcaps_mask->a_mpdu_params |= 0x1C; | |
2871 | htcaps->a_mpdu_params &= ~(0x1C); | |
2872 | htcaps->a_mpdu_params |= (density << 2) & 0x1C; | |
2873 | ||
2874 | return 0; | |
2875 | } | |
2876 | ||
2877 | ||
2878 | static int wpa_set_disable_ht40(struct wpa_supplicant *wpa_s, | |
2879 | struct ieee80211_ht_capabilities *htcaps, | |
2880 | struct ieee80211_ht_capabilities *htcaps_mask, | |
2881 | int disabled) | |
2882 | { | |
2883 | /* Masking these out disables HT40 */ | |
2884 | u16 msk = host_to_le16(HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET | | |
2885 | HT_CAP_INFO_SHORT_GI40MHZ); | |
2886 | ||
2887 | wpa_msg(wpa_s, MSG_DEBUG, "set_disable_ht40: %d", disabled); | |
2888 | ||
2889 | if (disabled) | |
2890 | htcaps->ht_capabilities_info &= ~msk; | |
2891 | else | |
2892 | htcaps->ht_capabilities_info |= msk; | |
2893 | ||
2894 | htcaps_mask->ht_capabilities_info |= msk; | |
2895 | ||
2896 | return 0; | |
2897 | } | |
2898 | ||
2899 | ||
2900 | static int wpa_set_disable_sgi(struct wpa_supplicant *wpa_s, | |
2901 | struct ieee80211_ht_capabilities *htcaps, | |
2902 | struct ieee80211_ht_capabilities *htcaps_mask, | |
2903 | int disabled) | |
2904 | { | |
2905 | /* Masking these out disables SGI */ | |
2906 | u16 msk = host_to_le16(HT_CAP_INFO_SHORT_GI20MHZ | | |
2907 | HT_CAP_INFO_SHORT_GI40MHZ); | |
2908 | ||
2909 | wpa_msg(wpa_s, MSG_DEBUG, "set_disable_sgi: %d", disabled); | |
2910 | ||
2911 | if (disabled) | |
2912 | htcaps->ht_capabilities_info &= ~msk; | |
2913 | else | |
2914 | htcaps->ht_capabilities_info |= msk; | |
2915 | ||
2916 | htcaps_mask->ht_capabilities_info |= msk; | |
2917 | ||
2918 | return 0; | |
2919 | } | |
2920 | ||
2921 | ||
2922 | void wpa_supplicant_apply_ht_overrides( | |
2923 | struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid, | |
2924 | struct wpa_driver_associate_params *params) | |
2925 | { | |
2926 | struct ieee80211_ht_capabilities *htcaps; | |
2927 | struct ieee80211_ht_capabilities *htcaps_mask; | |
2928 | ||
2929 | if (!ssid) | |
2930 | return; | |
2931 | ||
2932 | params->disable_ht = ssid->disable_ht; | |
2933 | if (!params->htcaps || !params->htcaps_mask) | |
2934 | return; | |
2935 | ||
2936 | htcaps = (struct ieee80211_ht_capabilities *) params->htcaps; | |
2937 | htcaps_mask = (struct ieee80211_ht_capabilities *) params->htcaps_mask; | |
2938 | wpa_set_htcap_mcs(wpa_s, htcaps, htcaps_mask, ssid->ht_mcs); | |
2939 | wpa_disable_max_amsdu(wpa_s, htcaps, htcaps_mask, | |
2940 | ssid->disable_max_amsdu); | |
2941 | wpa_set_ampdu_factor(wpa_s, htcaps, htcaps_mask, ssid->ampdu_factor); | |
2942 | wpa_set_ampdu_density(wpa_s, htcaps, htcaps_mask, ssid->ampdu_density); | |
2943 | wpa_set_disable_ht40(wpa_s, htcaps, htcaps_mask, ssid->disable_ht40); | |
2944 | wpa_set_disable_sgi(wpa_s, htcaps, htcaps_mask, ssid->disable_sgi); | |
2945 | } | |
2946 | ||
2947 | #endif /* CONFIG_HT_OVERRIDES */ | |
2948 | ||
2949 | ||
2950 | #ifdef CONFIG_VHT_OVERRIDES | |
2951 | void wpa_supplicant_apply_vht_overrides( | |
2952 | struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid, | |
2953 | struct wpa_driver_associate_params *params) | |
2954 | { | |
2955 | struct ieee80211_vht_capabilities *vhtcaps; | |
2956 | struct ieee80211_vht_capabilities *vhtcaps_mask; | |
2957 | ||
2958 | if (!ssid) | |
2959 | return; | |
2960 | ||
2961 | params->disable_vht = ssid->disable_vht; | |
2962 | ||
2963 | vhtcaps = (void *) params->vhtcaps; | |
2964 | vhtcaps_mask = (void *) params->vhtcaps_mask; | |
2965 | ||
2966 | if (!vhtcaps || !vhtcaps_mask) | |
2967 | return; | |
2968 | ||
2969 | vhtcaps->vht_capabilities_info = ssid->vht_capa; | |
2970 | vhtcaps_mask->vht_capabilities_info = ssid->vht_capa_mask; | |
2971 | ||
2972 | #define OVERRIDE_MCS(i) \ | |
2973 | if (ssid->vht_tx_mcs_nss_ ##i >= 0) { \ | |
2974 | vhtcaps_mask->vht_supported_mcs_set.tx_map |= \ | |
2975 | 3 << 2 * (i - 1); \ | |
2976 | vhtcaps->vht_supported_mcs_set.tx_map |= \ | |
2977 | ssid->vht_tx_mcs_nss_ ##i << 2 * (i - 1); \ | |
2978 | } \ | |
2979 | if (ssid->vht_rx_mcs_nss_ ##i >= 0) { \ | |
2980 | vhtcaps_mask->vht_supported_mcs_set.rx_map |= \ | |
2981 | 3 << 2 * (i - 1); \ | |
2982 | vhtcaps->vht_supported_mcs_set.rx_map |= \ | |
2983 | ssid->vht_rx_mcs_nss_ ##i << 2 * (i - 1); \ | |
2984 | } | |
2985 | ||
2986 | OVERRIDE_MCS(1); | |
2987 | OVERRIDE_MCS(2); | |
2988 | OVERRIDE_MCS(3); | |
2989 | OVERRIDE_MCS(4); | |
2990 | OVERRIDE_MCS(5); | |
2991 | OVERRIDE_MCS(6); | |
2992 | OVERRIDE_MCS(7); | |
2993 | OVERRIDE_MCS(8); | |
2994 | } | |
2995 | #endif /* CONFIG_VHT_OVERRIDES */ | |
2996 | ||
2997 | ||
2998 | static int pcsc_reader_init(struct wpa_supplicant *wpa_s) | |
2999 | { | |
3000 | #ifdef PCSC_FUNCS | |
3001 | size_t len; | |
3002 | ||
3003 | if (!wpa_s->conf->pcsc_reader) | |
3004 | return 0; | |
3005 | ||
3006 | wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader); | |
3007 | if (!wpa_s->scard) | |
3008 | return 1; | |
3009 | ||
3010 | if (wpa_s->conf->pcsc_pin && | |
3011 | scard_set_pin(wpa_s->scard, wpa_s->conf->pcsc_pin) < 0) { | |
3012 | scard_deinit(wpa_s->scard); | |
3013 | wpa_s->scard = NULL; | |
3014 | wpa_msg(wpa_s, MSG_ERROR, "PC/SC PIN validation failed"); | |
3015 | return -1; | |
3016 | } | |
3017 | ||
3018 | len = sizeof(wpa_s->imsi) - 1; | |
3019 | if (scard_get_imsi(wpa_s->scard, wpa_s->imsi, &len)) { | |
3020 | scard_deinit(wpa_s->scard); | |
3021 | wpa_s->scard = NULL; | |
3022 | wpa_msg(wpa_s, MSG_ERROR, "Could not read IMSI"); | |
3023 | return -1; | |
3024 | } | |
3025 | wpa_s->imsi[len] = '\0'; | |
3026 | ||
3027 | wpa_s->mnc_len = scard_get_mnc_len(wpa_s->scard); | |
3028 | ||
3029 | wpa_printf(MSG_DEBUG, "SCARD: IMSI %s (MNC length %d)", | |
3030 | wpa_s->imsi, wpa_s->mnc_len); | |
3031 | ||
3032 | wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard); | |
3033 | eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard); | |
3034 | #endif /* PCSC_FUNCS */ | |
3035 | ||
3036 | return 0; | |
3037 | } | |
3038 | ||
3039 | ||
3040 | int wpas_init_ext_pw(struct wpa_supplicant *wpa_s) | |
3041 | { | |
3042 | char *val, *pos; | |
3043 | ||
3044 | ext_password_deinit(wpa_s->ext_pw); | |
3045 | wpa_s->ext_pw = NULL; | |
3046 | eapol_sm_set_ext_pw_ctx(wpa_s->eapol, NULL); | |
3047 | ||
3048 | if (!wpa_s->conf->ext_password_backend) | |
3049 | return 0; | |
3050 | ||
3051 | val = os_strdup(wpa_s->conf->ext_password_backend); | |
3052 | if (val == NULL) | |
3053 | return -1; | |
3054 | pos = os_strchr(val, ':'); | |
3055 | if (pos) | |
3056 | *pos++ = '\0'; | |
3057 | ||
3058 | wpa_printf(MSG_DEBUG, "EXT PW: Initialize backend '%s'", val); | |
3059 | ||
3060 | wpa_s->ext_pw = ext_password_init(val, pos); | |
3061 | os_free(val); | |
3062 | if (wpa_s->ext_pw == NULL) { | |
3063 | wpa_printf(MSG_DEBUG, "EXT PW: Failed to initialize backend"); | |
3064 | return -1; | |
3065 | } | |
3066 | eapol_sm_set_ext_pw_ctx(wpa_s->eapol, wpa_s->ext_pw); | |
3067 | ||
3068 | return 0; | |
3069 | } | |
3070 | ||
3071 | ||
3072 | static struct wpa_radio * radio_add_interface(struct wpa_supplicant *wpa_s, | |
3073 | const char *rn) | |
3074 | { | |
3075 | struct wpa_supplicant *iface = wpa_s->global->ifaces; | |
3076 | struct wpa_radio *radio; | |
3077 | ||
3078 | while (rn && iface) { | |
3079 | radio = iface->radio; | |
3080 | if (radio && os_strcmp(rn, radio->name) == 0) { | |
3081 | wpa_printf(MSG_DEBUG, "Add interface %s to existing radio %s", | |
3082 | wpa_s->ifname, rn); | |
3083 | dl_list_add(&radio->ifaces, &wpa_s->radio_list); | |
3084 | return radio; | |
3085 | } | |
3086 | ||
3087 | iface = iface->next; | |
3088 | } | |
3089 | ||
3090 | wpa_printf(MSG_DEBUG, "Add interface %s to a new radio %s", | |
3091 | wpa_s->ifname, rn ? rn : "N/A"); | |
3092 | radio = os_zalloc(sizeof(*radio)); | |
3093 | if (radio == NULL) | |
3094 | return NULL; | |
3095 | ||
3096 | if (rn) | |
3097 | os_strlcpy(radio->name, rn, sizeof(radio->name)); | |
3098 | dl_list_init(&radio->ifaces); | |
3099 | dl_list_init(&radio->work); | |
3100 | dl_list_add(&radio->ifaces, &wpa_s->radio_list); | |
3101 | ||
3102 | return radio; | |
3103 | } | |
3104 | ||
3105 | ||
3106 | static void radio_work_free(struct wpa_radio_work *work) | |
3107 | { | |
3108 | if (work->wpa_s->scan_work == work) { | |
3109 | /* This should not really happen. */ | |
3110 | wpa_dbg(work->wpa_s, MSG_INFO, "Freeing radio work '%s'@%p (started=%d) that is marked as scan_work", | |
3111 | work->type, work, work->started); | |
3112 | work->wpa_s->scan_work = NULL; | |
3113 | } | |
3114 | ||
3115 | #ifdef CONFIG_P2P | |
3116 | if (work->wpa_s->p2p_scan_work == work) { | |
3117 | /* This should not really happen. */ | |
3118 | wpa_dbg(work->wpa_s, MSG_INFO, "Freeing radio work '%s'@%p (started=%d) that is marked as p2p_scan_work", | |
3119 | work->type, work, work->started); | |
3120 | work->wpa_s->p2p_scan_work = NULL; | |
3121 | } | |
3122 | #endif /* CONFIG_P2P */ | |
3123 | ||
3124 | dl_list_del(&work->list); | |
3125 | os_free(work); | |
3126 | } | |
3127 | ||
3128 | ||
3129 | static void radio_start_next_work(void *eloop_ctx, void *timeout_ctx) | |
3130 | { | |
3131 | struct wpa_radio *radio = eloop_ctx; | |
3132 | struct wpa_radio_work *work; | |
3133 | struct os_reltime now, diff; | |
3134 | struct wpa_supplicant *wpa_s; | |
3135 | ||
3136 | work = dl_list_first(&radio->work, struct wpa_radio_work, list); | |
3137 | if (work == NULL) | |
3138 | return; | |
3139 | ||
3140 | if (work->started) | |
3141 | return; /* already started and still in progress */ | |
3142 | ||
3143 | wpa_s = dl_list_first(&radio->ifaces, struct wpa_supplicant, | |
3144 | radio_list); | |
3145 | if (wpa_s && wpa_s->external_scan_running) { | |
3146 | wpa_printf(MSG_DEBUG, "Delay radio work start until externally triggered scan completes"); | |
3147 | return; | |
3148 | } | |
3149 | ||
3150 | os_get_reltime(&now); | |
3151 | os_reltime_sub(&now, &work->time, &diff); | |
3152 | wpa_dbg(work->wpa_s, MSG_DEBUG, "Starting radio work '%s'@%p after %ld.%06ld second wait", | |
3153 | work->type, work, diff.sec, diff.usec); | |
3154 | work->started = 1; | |
3155 | work->time = now; | |
3156 | work->cb(work, 0); | |
3157 | } | |
3158 | ||
3159 | ||
3160 | /* | |
3161 | * This function removes both started and pending radio works running on | |
3162 | * the provided interface's radio. | |
3163 | * Prior to the removal of the radio work, its callback (cb) is called with | |
3164 | * deinit set to be 1. Each work's callback is responsible for clearing its | |
3165 | * internal data and restoring to a correct state. | |
3166 | * @wpa_s: wpa_supplicant data | |
3167 | * @type: type of works to be removed | |
3168 | * @remove_all: 1 to remove all the works on this radio, 0 to remove only | |
3169 | * this interface's works. | |
3170 | */ | |
3171 | void radio_remove_works(struct wpa_supplicant *wpa_s, | |
3172 | const char *type, int remove_all) | |
3173 | { | |
3174 | struct wpa_radio_work *work, *tmp; | |
3175 | struct wpa_radio *radio = wpa_s->radio; | |
3176 | ||
3177 | dl_list_for_each_safe(work, tmp, &radio->work, struct wpa_radio_work, | |
3178 | list) { | |
3179 | if (type && os_strcmp(type, work->type) != 0) | |
3180 | continue; | |
3181 | ||
3182 | /* skip other ifaces' works */ | |
3183 | if (!remove_all && work->wpa_s != wpa_s) | |
3184 | continue; | |
3185 | ||
3186 | wpa_dbg(wpa_s, MSG_DEBUG, "Remove radio work '%s'@%p%s", | |
3187 | work->type, work, work->started ? " (started)" : ""); | |
3188 | work->cb(work, 1); | |
3189 | radio_work_free(work); | |
3190 | } | |
3191 | ||
3192 | /* in case we removed the started work */ | |
3193 | radio_work_check_next(wpa_s); | |
3194 | } | |
3195 | ||
3196 | ||
3197 | static void radio_remove_interface(struct wpa_supplicant *wpa_s) | |
3198 | { | |
3199 | struct wpa_radio *radio = wpa_s->radio; | |
3200 | ||
3201 | if (!radio) | |
3202 | return; | |
3203 | ||
3204 | wpa_printf(MSG_DEBUG, "Remove interface %s from radio %s", | |
3205 | wpa_s->ifname, radio->name); | |
3206 | dl_list_del(&wpa_s->radio_list); | |
3207 | if (!dl_list_empty(&radio->ifaces)) { | |
3208 | wpa_s->radio = NULL; | |
3209 | return; /* Interfaces remain for this radio */ | |
3210 | } | |
3211 | ||
3212 | wpa_printf(MSG_DEBUG, "Remove radio %s", radio->name); | |
3213 | radio_remove_works(wpa_s, NULL, 0); | |
3214 | eloop_cancel_timeout(radio_start_next_work, radio, NULL); | |
3215 | wpa_s->radio = NULL; | |
3216 | os_free(radio); | |
3217 | } | |
3218 | ||
3219 | ||
3220 | void radio_work_check_next(struct wpa_supplicant *wpa_s) | |
3221 | { | |
3222 | struct wpa_radio *radio = wpa_s->radio; | |
3223 | ||
3224 | if (dl_list_empty(&radio->work)) | |
3225 | return; | |
3226 | eloop_cancel_timeout(radio_start_next_work, radio, NULL); | |
3227 | eloop_register_timeout(0, 0, radio_start_next_work, radio, NULL); | |
3228 | } | |
3229 | ||
3230 | ||
3231 | /** | |
3232 | * radio_add_work - Add a radio work item | |
3233 | * @wpa_s: Pointer to wpa_supplicant data | |
3234 | * @freq: Frequency of the offchannel operation in MHz or 0 | |
3235 | * @type: Unique identifier for each type of work | |
3236 | * @next: Force as the next work to be executed | |
3237 | * @cb: Callback function for indicating when radio is available | |
3238 | * @ctx: Context pointer for the work (work->ctx in cb()) | |
3239 | * Returns: 0 on success, -1 on failure | |
3240 | * | |
3241 | * This function is used to request time for an operation that requires | |
3242 | * exclusive radio control. Once the radio is available, the registered callback | |
3243 | * function will be called. radio_work_done() must be called once the exclusive | |
3244 | * radio operation has been completed, so that the radio is freed for other | |
3245 | * operations. The special case of deinit=1 is used to free the context data | |
3246 | * during interface removal. That does not allow the callback function to start | |
3247 | * the radio operation, i.e., it must free any resources allocated for the radio | |
3248 | * work and return. | |
3249 | * | |
3250 | * The @freq parameter can be used to indicate a single channel on which the | |
3251 | * offchannel operation will occur. This may allow multiple radio work | |
3252 | * operations to be performed in parallel if they apply for the same channel. | |
3253 | * Setting this to 0 indicates that the work item may use multiple channels or | |
3254 | * requires exclusive control of the radio. | |
3255 | */ | |
3256 | int radio_add_work(struct wpa_supplicant *wpa_s, unsigned int freq, | |
3257 | const char *type, int next, | |
3258 | void (*cb)(struct wpa_radio_work *work, int deinit), | |
3259 | void *ctx) | |
3260 | { | |
3261 | struct wpa_radio_work *work; | |
3262 | int was_empty; | |
3263 | ||
3264 | work = os_zalloc(sizeof(*work)); | |
3265 | if (work == NULL) | |
3266 | return -1; | |
3267 | wpa_dbg(wpa_s, MSG_DEBUG, "Add radio work '%s'@%p", type, work); | |
3268 | os_get_reltime(&work->time); | |
3269 | work->freq = freq; | |
3270 | work->type = type; | |
3271 | work->wpa_s = wpa_s; | |
3272 | work->cb = cb; | |
3273 | work->ctx = ctx; | |
3274 | ||
3275 | was_empty = dl_list_empty(&wpa_s->radio->work); | |
3276 | if (next) | |
3277 | dl_list_add(&wpa_s->radio->work, &work->list); | |
3278 | else | |
3279 | dl_list_add_tail(&wpa_s->radio->work, &work->list); | |
3280 | if (was_empty) { | |
3281 | wpa_dbg(wpa_s, MSG_DEBUG, "First radio work item in the queue - schedule start immediately"); | |
3282 | radio_work_check_next(wpa_s); | |
3283 | } | |
3284 | ||
3285 | return 0; | |
3286 | } | |
3287 | ||
3288 | ||
3289 | /** | |
3290 | * radio_work_done - Indicate that a radio work item has been completed | |
3291 | * @work: Completed work | |
3292 | * | |
3293 | * This function is called once the callback function registered with | |
3294 | * radio_add_work() has completed its work. | |
3295 | */ | |
3296 | void radio_work_done(struct wpa_radio_work *work) | |
3297 | { | |
3298 | struct wpa_supplicant *wpa_s = work->wpa_s; | |
3299 | struct os_reltime now, diff; | |
3300 | unsigned int started = work->started; | |
3301 | ||
3302 | os_get_reltime(&now); | |
3303 | os_reltime_sub(&now, &work->time, &diff); | |
3304 | wpa_dbg(wpa_s, MSG_DEBUG, "Radio work '%s'@%p %s in %ld.%06ld seconds", | |
3305 | work->type, work, started ? "done" : "canceled", | |
3306 | diff.sec, diff.usec); | |
3307 | radio_work_free(work); | |
3308 | if (started) | |
3309 | radio_work_check_next(wpa_s); | |
3310 | } | |
3311 | ||
3312 | ||
3313 | int radio_work_pending(struct wpa_supplicant *wpa_s, const char *type) | |
3314 | { | |
3315 | struct wpa_radio_work *work; | |
3316 | struct wpa_radio *radio = wpa_s->radio; | |
3317 | ||
3318 | dl_list_for_each(work, &radio->work, struct wpa_radio_work, list) { | |
3319 | if (work->wpa_s == wpa_s && os_strcmp(work->type, type) == 0) | |
3320 | return 1; | |
3321 | } | |
3322 | ||
3323 | return 0; | |
3324 | } | |
3325 | ||
3326 | ||
3327 | static int wpas_init_driver(struct wpa_supplicant *wpa_s, | |
3328 | struct wpa_interface *iface) | |
3329 | { | |
3330 | const char *ifname, *driver, *rn; | |
3331 | ||
3332 | driver = iface->driver; | |
3333 | next_driver: | |
3334 | if (wpa_supplicant_set_driver(wpa_s, driver) < 0) | |
3335 | return -1; | |
3336 | ||
3337 | wpa_s->drv_priv = wpa_drv_init(wpa_s, wpa_s->ifname); | |
3338 | if (wpa_s->drv_priv == NULL) { | |
3339 | const char *pos; | |
3340 | pos = driver ? os_strchr(driver, ',') : NULL; | |
3341 | if (pos) { | |
3342 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize " | |
3343 | "driver interface - try next driver wrapper"); | |
3344 | driver = pos + 1; | |
3345 | goto next_driver; | |
3346 | } | |
3347 | wpa_msg(wpa_s, MSG_ERROR, "Failed to initialize driver " | |
3348 | "interface"); | |
3349 | return -1; | |
3350 | } | |
3351 | if (wpa_drv_set_param(wpa_s, wpa_s->conf->driver_param) < 0) { | |
3352 | wpa_msg(wpa_s, MSG_ERROR, "Driver interface rejected " | |
3353 | "driver_param '%s'", wpa_s->conf->driver_param); | |
3354 | return -1; | |
3355 | } | |
3356 | ||
3357 | ifname = wpa_drv_get_ifname(wpa_s); | |
3358 | if (ifname && os_strcmp(ifname, wpa_s->ifname) != 0) { | |
3359 | wpa_dbg(wpa_s, MSG_DEBUG, "Driver interface replaced " | |
3360 | "interface name with '%s'", ifname); | |
3361 | os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname)); | |
3362 | } | |
3363 | ||
3364 | if (wpa_s->driver->get_radio_name) | |
3365 | rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv); | |
3366 | else | |
3367 | rn = NULL; | |
3368 | if (rn && rn[0] == '\0') | |
3369 | rn = NULL; | |
3370 | ||
3371 | wpa_s->radio = radio_add_interface(wpa_s, rn); | |
3372 | if (wpa_s->radio == NULL) | |
3373 | return -1; | |
3374 | ||
3375 | return 0; | |
3376 | } | |
3377 | ||
3378 | ||
3379 | static int wpa_supplicant_init_iface(struct wpa_supplicant *wpa_s, | |
3380 | struct wpa_interface *iface) | |
3381 | { | |
3382 | struct wpa_driver_capa capa; | |
3383 | ||
3384 | wpa_printf(MSG_DEBUG, "Initializing interface '%s' conf '%s' driver " | |
3385 | "'%s' ctrl_interface '%s' bridge '%s'", iface->ifname, | |
3386 | iface->confname ? iface->confname : "N/A", | |
3387 | iface->driver ? iface->driver : "default", | |
3388 | iface->ctrl_interface ? iface->ctrl_interface : "N/A", | |
3389 | iface->bridge_ifname ? iface->bridge_ifname : "N/A"); | |
3390 | ||
3391 | if (iface->confname) { | |
3392 | #ifdef CONFIG_BACKEND_FILE | |
3393 | wpa_s->confname = os_rel2abs_path(iface->confname); | |
3394 | if (wpa_s->confname == NULL) { | |
3395 | wpa_printf(MSG_ERROR, "Failed to get absolute path " | |
3396 | "for configuration file '%s'.", | |
3397 | iface->confname); | |
3398 | return -1; | |
3399 | } | |
3400 | wpa_printf(MSG_DEBUG, "Configuration file '%s' -> '%s'", | |
3401 | iface->confname, wpa_s->confname); | |
3402 | #else /* CONFIG_BACKEND_FILE */ | |
3403 | wpa_s->confname = os_strdup(iface->confname); | |
3404 | #endif /* CONFIG_BACKEND_FILE */ | |
3405 | wpa_s->conf = wpa_config_read(wpa_s->confname, NULL); | |
3406 | if (wpa_s->conf == NULL) { | |
3407 | wpa_printf(MSG_ERROR, "Failed to read or parse " | |
3408 | "configuration '%s'.", wpa_s->confname); | |
3409 | return -1; | |
3410 | } | |
3411 | wpa_s->confanother = os_rel2abs_path(iface->confanother); | |
3412 | wpa_config_read(wpa_s->confanother, wpa_s->conf); | |
3413 | ||
3414 | #ifdef CONFIG_P2P | |
3415 | wpa_s->conf_p2p_dev = os_rel2abs_path(iface->conf_p2p_dev); | |
3416 | wpa_config_read(wpa_s->conf_p2p_dev, wpa_s->conf); | |
3417 | #endif /* CONFIG_P2P */ | |
3418 | ||
3419 | /* | |
3420 | * Override ctrl_interface and driver_param if set on command | |
3421 | * line. | |
3422 | */ | |
3423 | if (iface->ctrl_interface) { | |
3424 | os_free(wpa_s->conf->ctrl_interface); | |
3425 | wpa_s->conf->ctrl_interface = | |
3426 | os_strdup(iface->ctrl_interface); | |
3427 | } | |
3428 | ||
3429 | if (iface->driver_param) { | |
3430 | os_free(wpa_s->conf->driver_param); | |
3431 | wpa_s->conf->driver_param = | |
3432 | os_strdup(iface->driver_param); | |
3433 | } | |
3434 | ||
3435 | if (iface->p2p_mgmt && !iface->ctrl_interface) { | |
3436 | os_free(wpa_s->conf->ctrl_interface); | |
3437 | wpa_s->conf->ctrl_interface = NULL; | |
3438 | } | |
3439 | } else | |
3440 | wpa_s->conf = wpa_config_alloc_empty(iface->ctrl_interface, | |
3441 | iface->driver_param); | |
3442 | ||
3443 | if (wpa_s->conf == NULL) { | |
3444 | wpa_printf(MSG_ERROR, "\nNo configuration found."); | |
3445 | return -1; | |
3446 | } | |
3447 | ||
3448 | if (iface->ifname == NULL) { | |
3449 | wpa_printf(MSG_ERROR, "\nInterface name is required."); | |
3450 | return -1; | |
3451 | } | |
3452 | if (os_strlen(iface->ifname) >= sizeof(wpa_s->ifname)) { | |
3453 | wpa_printf(MSG_ERROR, "\nToo long interface name '%s'.", | |
3454 | iface->ifname); | |
3455 | return -1; | |
3456 | } | |
3457 | os_strlcpy(wpa_s->ifname, iface->ifname, sizeof(wpa_s->ifname)); | |
3458 | ||
3459 | if (iface->bridge_ifname) { | |
3460 | if (os_strlen(iface->bridge_ifname) >= | |
3461 | sizeof(wpa_s->bridge_ifname)) { | |
3462 | wpa_printf(MSG_ERROR, "\nToo long bridge interface " | |
3463 | "name '%s'.", iface->bridge_ifname); | |
3464 | return -1; | |
3465 | } | |
3466 | os_strlcpy(wpa_s->bridge_ifname, iface->bridge_ifname, | |
3467 | sizeof(wpa_s->bridge_ifname)); | |
3468 | } | |
3469 | ||
3470 | /* RSNA Supplicant Key Management - INITIALIZE */ | |
3471 | eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); | |
3472 | eapol_sm_notify_portValid(wpa_s->eapol, FALSE); | |
3473 | ||
3474 | /* Initialize driver interface and register driver event handler before | |
3475 | * L2 receive handler so that association events are processed before | |
3476 | * EAPOL-Key packets if both become available for the same select() | |
3477 | * call. */ | |
3478 | if (wpas_init_driver(wpa_s, iface) < 0) | |
3479 | return -1; | |
3480 | ||
3481 | if (wpa_supplicant_init_wpa(wpa_s) < 0) | |
3482 | return -1; | |
3483 | ||
3484 | wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname, | |
3485 | wpa_s->bridge_ifname[0] ? wpa_s->bridge_ifname : | |
3486 | NULL); | |
3487 | wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth); | |
3488 | ||
3489 | if (wpa_s->conf->dot11RSNAConfigPMKLifetime && | |
3490 | wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME, | |
3491 | wpa_s->conf->dot11RSNAConfigPMKLifetime)) { | |
3492 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " | |
3493 | "dot11RSNAConfigPMKLifetime"); | |
3494 | return -1; | |
3495 | } | |
3496 | ||
3497 | if (wpa_s->conf->dot11RSNAConfigPMKReauthThreshold && | |
3498 | wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD, | |
3499 | wpa_s->conf->dot11RSNAConfigPMKReauthThreshold)) { | |
3500 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " | |
3501 | "dot11RSNAConfigPMKReauthThreshold"); | |
3502 | return -1; | |
3503 | } | |
3504 | ||
3505 | if (wpa_s->conf->dot11RSNAConfigSATimeout && | |
3506 | wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT, | |
3507 | wpa_s->conf->dot11RSNAConfigSATimeout)) { | |
3508 | wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for " | |
3509 | "dot11RSNAConfigSATimeout"); | |
3510 | return -1; | |
3511 | } | |
3512 | ||
3513 | wpa_s->hw.modes = wpa_drv_get_hw_feature_data(wpa_s, | |
3514 | &wpa_s->hw.num_modes, | |
3515 | &wpa_s->hw.flags); | |
3516 | ||
3517 | if (wpa_drv_get_capa(wpa_s, &capa) == 0) { | |
3518 | wpa_s->drv_capa_known = 1; | |
3519 | wpa_s->drv_flags = capa.flags; | |
3520 | wpa_s->drv_enc = capa.enc; | |
3521 | wpa_s->probe_resp_offloads = capa.probe_resp_offloads; | |
3522 | wpa_s->max_scan_ssids = capa.max_scan_ssids; | |
3523 | wpa_s->max_sched_scan_ssids = capa.max_sched_scan_ssids; | |
3524 | wpa_s->sched_scan_supported = capa.sched_scan_supported; | |
3525 | wpa_s->max_match_sets = capa.max_match_sets; | |
3526 | wpa_s->max_remain_on_chan = capa.max_remain_on_chan; | |
3527 | wpa_s->max_stations = capa.max_stations; | |
3528 | wpa_s->extended_capa = capa.extended_capa; | |
3529 | wpa_s->extended_capa_mask = capa.extended_capa_mask; | |
3530 | wpa_s->extended_capa_len = capa.extended_capa_len; | |
3531 | wpa_s->num_multichan_concurrent = | |
3532 | capa.num_multichan_concurrent; | |
3533 | } | |
3534 | if (wpa_s->max_remain_on_chan == 0) | |
3535 | wpa_s->max_remain_on_chan = 1000; | |
3536 | ||
3537 | /* | |
3538 | * Only take p2p_mgmt parameters when P2P Device is supported. | |
3539 | * Doing it here as it determines whether l2_packet_init() will be done | |
3540 | * during wpa_supplicant_driver_init(). | |
3541 | */ | |
3542 | if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) | |
3543 | wpa_s->p2p_mgmt = iface->p2p_mgmt; | |
3544 | else | |
3545 | iface->p2p_mgmt = 1; | |
3546 | ||
3547 | if (wpa_s->num_multichan_concurrent == 0) | |
3548 | wpa_s->num_multichan_concurrent = 1; | |
3549 | ||
3550 | if (wpa_supplicant_driver_init(wpa_s) < 0) | |
3551 | return -1; | |
3552 | ||
3553 | #ifdef CONFIG_TDLS | |
3554 | if ((!iface->p2p_mgmt || | |
3555 | !(wpa_s->drv_flags & | |
3556 | WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) && | |
3557 | wpa_tdls_init(wpa_s->wpa)) | |
3558 | return -1; | |
3559 | #endif /* CONFIG_TDLS */ | |
3560 | ||
3561 | if (wpa_s->conf->country[0] && wpa_s->conf->country[1] && | |
3562 | wpa_drv_set_country(wpa_s, wpa_s->conf->country)) { | |
3563 | wpa_dbg(wpa_s, MSG_DEBUG, "Failed to set country"); | |
3564 | return -1; | |
3565 | } | |
3566 | ||
3567 | if (wpas_wps_init(wpa_s)) | |
3568 | return -1; | |
3569 | ||
3570 | if (wpa_supplicant_init_eapol(wpa_s) < 0) | |
3571 | return -1; | |
3572 | wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol); | |
3573 | ||
3574 | wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s); | |
3575 | if (wpa_s->ctrl_iface == NULL) { | |
3576 | wpa_printf(MSG_ERROR, | |
3577 | "Failed to initialize control interface '%s'.\n" | |
3578 | "You may have another wpa_supplicant process " | |
3579 | "already running or the file was\n" | |
3580 | "left by an unclean termination of wpa_supplicant " | |
3581 | "in which case you will need\n" | |
3582 | "to manually remove this file before starting " | |
3583 | "wpa_supplicant again.\n", | |
3584 | wpa_s->conf->ctrl_interface); | |
3585 | return -1; | |
3586 | } | |
3587 | ||
3588 | wpa_s->gas = gas_query_init(wpa_s); | |
3589 | if (wpa_s->gas == NULL) { | |
3590 | wpa_printf(MSG_ERROR, "Failed to initialize GAS query"); | |
3591 | return -1; | |
3592 | } | |
3593 | ||
3594 | #ifdef CONFIG_P2P | |
3595 | if (iface->p2p_mgmt && wpas_p2p_init(wpa_s->global, wpa_s) < 0) { | |
3596 | wpa_msg(wpa_s, MSG_ERROR, "Failed to init P2P"); | |
3597 | return -1; | |
3598 | } | |
3599 | #endif /* CONFIG_P2P */ | |
3600 | ||
3601 | if (wpa_bss_init(wpa_s) < 0) | |
3602 | return -1; | |
3603 | ||
3604 | #ifdef CONFIG_EAP_PROXY | |
3605 | { | |
3606 | size_t len; | |
3607 | wpa_s->mnc_len = eapol_sm_get_eap_proxy_imsi(wpa_s->eapol, wpa_s->imsi, | |
3608 | &len); | |
3609 | if (wpa_s->mnc_len > 0) { | |
3610 | wpa_s->imsi[len] = '\0'; | |
3611 | wpa_printf(MSG_DEBUG, "eap_proxy: IMSI %s (MNC length %d)", | |
3612 | wpa_s->imsi, wpa_s->mnc_len); | |
3613 | } else { | |
3614 | wpa_printf(MSG_DEBUG, "eap_proxy: IMSI not available"); | |
3615 | } | |
3616 | } | |
3617 | #endif /* CONFIG_EAP_PROXY */ | |
3618 | ||
3619 | if (pcsc_reader_init(wpa_s) < 0) | |
3620 | return -1; | |
3621 | ||
3622 | if (wpas_init_ext_pw(wpa_s) < 0) | |
3623 | return -1; | |
3624 | ||
3625 | return 0; | |
3626 | } | |
3627 | ||
3628 | ||
3629 | static void wpa_supplicant_deinit_iface(struct wpa_supplicant *wpa_s, | |
3630 | int notify, int terminate) | |
3631 | { | |
3632 | wpa_s->disconnected = 1; | |
3633 | if (wpa_s->drv_priv) { | |
3634 | wpa_supplicant_deauthenticate(wpa_s, | |
3635 | WLAN_REASON_DEAUTH_LEAVING); | |
3636 | ||
3637 | wpa_drv_set_countermeasures(wpa_s, 0); | |
3638 | wpa_clear_keys(wpa_s, NULL); | |
3639 | } | |
3640 | ||
3641 | wpa_supplicant_cleanup(wpa_s); | |
3642 | ||
3643 | #ifdef CONFIG_P2P | |
3644 | if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) { | |
3645 | wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing " | |
3646 | "the management interface is being removed"); | |
3647 | wpas_p2p_deinit_global(wpa_s->global); | |
3648 | } | |
3649 | #endif /* CONFIG_P2P */ | |
3650 | ||
3651 | wpas_ctrl_radio_work_flush(wpa_s); | |
3652 | radio_remove_interface(wpa_s); | |
3653 | ||
3654 | if (wpa_s->drv_priv) | |
3655 | wpa_drv_deinit(wpa_s); | |
3656 | ||
3657 | if (notify) | |
3658 | wpas_notify_iface_removed(wpa_s); | |
3659 | ||
3660 | if (terminate) | |
3661 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TERMINATING); | |
3662 | ||
3663 | if (wpa_s->ctrl_iface) { | |
3664 | wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); | |
3665 | wpa_s->ctrl_iface = NULL; | |
3666 | } | |
3667 | ||
3668 | if (wpa_s->conf != NULL) { | |
3669 | wpa_config_free(wpa_s->conf); | |
3670 | wpa_s->conf = NULL; | |
3671 | } | |
3672 | ||
3673 | os_free(wpa_s); | |
3674 | } | |
3675 | ||
3676 | ||
3677 | /** | |
3678 | * wpa_supplicant_add_iface - Add a new network interface | |
3679 | * @global: Pointer to global data from wpa_supplicant_init() | |
3680 | * @iface: Interface configuration options | |
3681 | * Returns: Pointer to the created interface or %NULL on failure | |
3682 | * | |
3683 | * This function is used to add new network interfaces for %wpa_supplicant. | |
3684 | * This can be called before wpa_supplicant_run() to add interfaces before the | |
3685 | * main event loop has been started. In addition, new interfaces can be added | |
3686 | * dynamically while %wpa_supplicant is already running. This could happen, | |
3687 | * e.g., when a hotplug network adapter is inserted. | |
3688 | */ | |
3689 | struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global, | |
3690 | struct wpa_interface *iface) | |
3691 | { | |
3692 | struct wpa_supplicant *wpa_s; | |
3693 | struct wpa_interface t_iface; | |
3694 | struct wpa_ssid *ssid; | |
3695 | ||
3696 | if (global == NULL || iface == NULL) | |
3697 | return NULL; | |
3698 | ||
3699 | wpa_s = wpa_supplicant_alloc(); | |
3700 | if (wpa_s == NULL) | |
3701 | return NULL; | |
3702 | ||
3703 | wpa_s->global = global; | |
3704 | ||
3705 | t_iface = *iface; | |
3706 | if (global->params.override_driver) { | |
3707 | wpa_printf(MSG_DEBUG, "Override interface parameter: driver " | |
3708 | "('%s' -> '%s')", | |
3709 | iface->driver, global->params.override_driver); | |
3710 | t_iface.driver = global->params.override_driver; | |
3711 | } | |
3712 | if (global->params.override_ctrl_interface) { | |
3713 | wpa_printf(MSG_DEBUG, "Override interface parameter: " | |
3714 | "ctrl_interface ('%s' -> '%s')", | |
3715 | iface->ctrl_interface, | |
3716 | global->params.override_ctrl_interface); | |
3717 | t_iface.ctrl_interface = | |
3718 | global->params.override_ctrl_interface; | |
3719 | } | |
3720 | if (wpa_supplicant_init_iface(wpa_s, &t_iface)) { | |
3721 | wpa_printf(MSG_DEBUG, "Failed to add interface %s", | |
3722 | iface->ifname); | |
3723 | wpa_supplicant_deinit_iface(wpa_s, 0, 0); | |
3724 | return NULL; | |
3725 | } | |
3726 | ||
3727 | /* Notify the control interfaces about new iface */ | |
3728 | if (wpas_notify_iface_added(wpa_s)) { | |
3729 | wpa_supplicant_deinit_iface(wpa_s, 1, 0); | |
3730 | return NULL; | |
3731 | } | |
3732 | ||
3733 | for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) | |
3734 | wpas_notify_network_added(wpa_s, ssid); | |
3735 | ||
3736 | wpa_s->next = global->ifaces; | |
3737 | global->ifaces = wpa_s; | |
3738 | ||
3739 | wpa_dbg(wpa_s, MSG_DEBUG, "Added interface %s", wpa_s->ifname); | |
3740 | wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); | |
3741 | ||
3742 | return wpa_s; | |
3743 | } | |
3744 | ||
3745 | ||
3746 | /** | |
3747 | * wpa_supplicant_remove_iface - Remove a network interface | |
3748 | * @global: Pointer to global data from wpa_supplicant_init() | |
3749 | * @wpa_s: Pointer to the network interface to be removed | |
3750 | * Returns: 0 if interface was removed, -1 if interface was not found | |
3751 | * | |
3752 | * This function can be used to dynamically remove network interfaces from | |
3753 | * %wpa_supplicant, e.g., when a hotplug network adapter is ejected. In | |
3754 | * addition, this function is used to remove all remaining interfaces when | |
3755 | * %wpa_supplicant is terminated. | |
3756 | */ | |
3757 | int wpa_supplicant_remove_iface(struct wpa_global *global, | |
3758 | struct wpa_supplicant *wpa_s, | |
3759 | int terminate) | |
3760 | { | |
3761 | struct wpa_supplicant *prev; | |
3762 | ||
3763 | /* Remove interface from the global list of interfaces */ | |
3764 | prev = global->ifaces; | |
3765 | if (prev == wpa_s) { | |
3766 | global->ifaces = wpa_s->next; | |
3767 | } else { | |
3768 | while (prev && prev->next != wpa_s) | |
3769 | prev = prev->next; | |
3770 | if (prev == NULL) | |
3771 | return -1; | |
3772 | prev->next = wpa_s->next; | |
3773 | } | |
3774 | ||
3775 | wpa_dbg(wpa_s, MSG_DEBUG, "Removing interface %s", wpa_s->ifname); | |
3776 | ||
3777 | if (global->p2p_group_formation == wpa_s) | |
3778 | global->p2p_group_formation = NULL; | |
3779 | if (global->p2p_invite_group == wpa_s) | |
3780 | global->p2p_invite_group = NULL; | |
3781 | wpa_supplicant_deinit_iface(wpa_s, 1, terminate); | |
3782 | ||
3783 | return 0; | |
3784 | } | |
3785 | ||
3786 | ||
3787 | /** | |
3788 | * wpa_supplicant_get_eap_mode - Get the current EAP mode | |
3789 | * @wpa_s: Pointer to the network interface | |
3790 | * Returns: Pointer to the eap mode or the string "UNKNOWN" if not found | |
3791 | */ | |
3792 | const char * wpa_supplicant_get_eap_mode(struct wpa_supplicant *wpa_s) | |
3793 | { | |
3794 | const char *eapol_method; | |
3795 | ||
3796 | if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) == 0 && | |
3797 | wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
3798 | return "NO-EAP"; | |
3799 | } | |
3800 | ||
3801 | eapol_method = eapol_sm_get_method_name(wpa_s->eapol); | |
3802 | if (eapol_method == NULL) | |
3803 | return "UNKNOWN-EAP"; | |
3804 | ||
3805 | return eapol_method; | |
3806 | } | |
3807 | ||
3808 | ||
3809 | /** | |
3810 | * wpa_supplicant_get_iface - Get a new network interface | |
3811 | * @global: Pointer to global data from wpa_supplicant_init() | |
3812 | * @ifname: Interface name | |
3813 | * Returns: Pointer to the interface or %NULL if not found | |
3814 | */ | |
3815 | struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global, | |
3816 | const char *ifname) | |
3817 | { | |
3818 | struct wpa_supplicant *wpa_s; | |
3819 | ||
3820 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) { | |
3821 | if (os_strcmp(wpa_s->ifname, ifname) == 0) | |
3822 | return wpa_s; | |
3823 | } | |
3824 | return NULL; | |
3825 | } | |
3826 | ||
3827 | ||
3828 | #ifndef CONFIG_NO_WPA_MSG | |
3829 | static const char * wpa_supplicant_msg_ifname_cb(void *ctx) | |
3830 | { | |
3831 | struct wpa_supplicant *wpa_s = ctx; | |
3832 | if (wpa_s == NULL) | |
3833 | return NULL; | |
3834 | return wpa_s->ifname; | |
3835 | } | |
3836 | #endif /* CONFIG_NO_WPA_MSG */ | |
3837 | ||
3838 | ||
3839 | /** | |
3840 | * wpa_supplicant_init - Initialize %wpa_supplicant | |
3841 | * @params: Parameters for %wpa_supplicant | |
3842 | * Returns: Pointer to global %wpa_supplicant data, or %NULL on failure | |
3843 | * | |
3844 | * This function is used to initialize %wpa_supplicant. After successful | |
3845 | * initialization, the returned data pointer can be used to add and remove | |
3846 | * network interfaces, and eventually, to deinitialize %wpa_supplicant. | |
3847 | */ | |
3848 | struct wpa_global * wpa_supplicant_init(struct wpa_params *params) | |
3849 | { | |
3850 | struct wpa_global *global; | |
3851 | int ret, i; | |
3852 | ||
3853 | if (params == NULL) | |
3854 | return NULL; | |
3855 | ||
3856 | #ifdef CONFIG_DRIVER_NDIS | |
3857 | { | |
3858 | void driver_ndis_init_ops(void); | |
3859 | driver_ndis_init_ops(); | |
3860 | } | |
3861 | #endif /* CONFIG_DRIVER_NDIS */ | |
3862 | ||
3863 | #ifndef CONFIG_NO_WPA_MSG | |
3864 | wpa_msg_register_ifname_cb(wpa_supplicant_msg_ifname_cb); | |
3865 | #endif /* CONFIG_NO_WPA_MSG */ | |
3866 | ||
3867 | wpa_debug_open_file(params->wpa_debug_file_path); | |
3868 | if (params->wpa_debug_syslog) | |
3869 | wpa_debug_open_syslog(); | |
3870 | if (params->wpa_debug_tracing) { | |
3871 | ret = wpa_debug_open_linux_tracing(); | |
3872 | if (ret) { | |
3873 | wpa_printf(MSG_ERROR, | |
3874 | "Failed to enable trace logging"); | |
3875 | return NULL; | |
3876 | } | |
3877 | } | |
3878 | ||
3879 | ret = eap_register_methods(); | |
3880 | if (ret) { | |
3881 | wpa_printf(MSG_ERROR, "Failed to register EAP methods"); | |
3882 | if (ret == -2) | |
3883 | wpa_printf(MSG_ERROR, "Two or more EAP methods used " | |
3884 | "the same EAP type."); | |
3885 | return NULL; | |
3886 | } | |
3887 | ||
3888 | global = os_zalloc(sizeof(*global)); | |
3889 | if (global == NULL) | |
3890 | return NULL; | |
3891 | dl_list_init(&global->p2p_srv_bonjour); | |
3892 | dl_list_init(&global->p2p_srv_upnp); | |
3893 | global->params.daemonize = params->daemonize; | |
3894 | global->params.wait_for_monitor = params->wait_for_monitor; | |
3895 | global->params.dbus_ctrl_interface = params->dbus_ctrl_interface; | |
3896 | if (params->pid_file) | |
3897 | global->params.pid_file = os_strdup(params->pid_file); | |
3898 | if (params->ctrl_interface) | |
3899 | global->params.ctrl_interface = | |
3900 | os_strdup(params->ctrl_interface); | |
3901 | if (params->ctrl_interface_group) | |
3902 | global->params.ctrl_interface_group = | |
3903 | os_strdup(params->ctrl_interface_group); | |
3904 | if (params->override_driver) | |
3905 | global->params.override_driver = | |
3906 | os_strdup(params->override_driver); | |
3907 | if (params->override_ctrl_interface) | |
3908 | global->params.override_ctrl_interface = | |
3909 | os_strdup(params->override_ctrl_interface); | |
3910 | wpa_debug_level = global->params.wpa_debug_level = | |
3911 | params->wpa_debug_level; | |
3912 | wpa_debug_show_keys = global->params.wpa_debug_show_keys = | |
3913 | params->wpa_debug_show_keys; | |
3914 | wpa_debug_timestamp = global->params.wpa_debug_timestamp = | |
3915 | params->wpa_debug_timestamp; | |
3916 | ||
3917 | wpa_printf(MSG_DEBUG, "wpa_supplicant v" VERSION_STR); | |
3918 | ||
3919 | if (eloop_init()) { | |
3920 | wpa_printf(MSG_ERROR, "Failed to initialize event loop"); | |
3921 | wpa_supplicant_deinit(global); | |
3922 | return NULL; | |
3923 | } | |
3924 | ||
3925 | random_init(params->entropy_file); | |
3926 | ||
3927 | global->ctrl_iface = wpa_supplicant_global_ctrl_iface_init(global); | |
3928 | if (global->ctrl_iface == NULL) { | |
3929 | wpa_supplicant_deinit(global); | |
3930 | return NULL; | |
3931 | } | |
3932 | ||
3933 | if (wpas_notify_supplicant_initialized(global)) { | |
3934 | wpa_supplicant_deinit(global); | |
3935 | return NULL; | |
3936 | } | |
3937 | ||
3938 | for (i = 0; wpa_drivers[i]; i++) | |
3939 | global->drv_count++; | |
3940 | if (global->drv_count == 0) { | |
3941 | wpa_printf(MSG_ERROR, "No drivers enabled"); | |
3942 | wpa_supplicant_deinit(global); | |
3943 | return NULL; | |
3944 | } | |
3945 | global->drv_priv = os_zalloc(global->drv_count * sizeof(void *)); | |
3946 | if (global->drv_priv == NULL) { | |
3947 | wpa_supplicant_deinit(global); | |
3948 | return NULL; | |
3949 | } | |
3950 | ||
3951 | #ifdef CONFIG_WIFI_DISPLAY | |
3952 | if (wifi_display_init(global) < 0) { | |
3953 | wpa_printf(MSG_ERROR, "Failed to initialize Wi-Fi Display"); | |
3954 | wpa_supplicant_deinit(global); | |
3955 | return NULL; | |
3956 | } | |
3957 | #endif /* CONFIG_WIFI_DISPLAY */ | |
3958 | ||
3959 | return global; | |
3960 | } | |
3961 | ||
3962 | ||
3963 | /** | |
3964 | * wpa_supplicant_run - Run the %wpa_supplicant main event loop | |
3965 | * @global: Pointer to global data from wpa_supplicant_init() | |
3966 | * Returns: 0 after successful event loop run, -1 on failure | |
3967 | * | |
3968 | * This function starts the main event loop and continues running as long as | |
3969 | * there are any remaining events. In most cases, this function is running as | |
3970 | * long as the %wpa_supplicant process in still in use. | |
3971 | */ | |
3972 | int wpa_supplicant_run(struct wpa_global *global) | |
3973 | { | |
3974 | struct wpa_supplicant *wpa_s; | |
3975 | ||
3976 | if (global->params.daemonize && | |
3977 | wpa_supplicant_daemon(global->params.pid_file)) | |
3978 | return -1; | |
3979 | ||
3980 | if (global->params.wait_for_monitor) { | |
3981 | for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) | |
3982 | if (wpa_s->ctrl_iface) | |
3983 | wpa_supplicant_ctrl_iface_wait( | |
3984 | wpa_s->ctrl_iface); | |
3985 | } | |
3986 | ||
3987 | eloop_register_signal_terminate(wpa_supplicant_terminate, global); | |
3988 | eloop_register_signal_reconfig(wpa_supplicant_reconfig, global); | |
3989 | ||
3990 | eloop_run(); | |
3991 | ||
3992 | return 0; | |
3993 | } | |
3994 | ||
3995 | ||
3996 | /** | |
3997 | * wpa_supplicant_deinit - Deinitialize %wpa_supplicant | |
3998 | * @global: Pointer to global data from wpa_supplicant_init() | |
3999 | * | |
4000 | * This function is called to deinitialize %wpa_supplicant and to free all | |
4001 | * allocated resources. Remaining network interfaces will also be removed. | |
4002 | */ | |
4003 | void wpa_supplicant_deinit(struct wpa_global *global) | |
4004 | { | |
4005 | int i; | |
4006 | ||
4007 | if (global == NULL) | |
4008 | return; | |
4009 | ||
4010 | #ifdef CONFIG_WIFI_DISPLAY | |
4011 | wifi_display_deinit(global); | |
4012 | #endif /* CONFIG_WIFI_DISPLAY */ | |
4013 | ||
4014 | while (global->ifaces) | |
4015 | wpa_supplicant_remove_iface(global, global->ifaces, 1); | |
4016 | ||
4017 | if (global->ctrl_iface) | |
4018 | wpa_supplicant_global_ctrl_iface_deinit(global->ctrl_iface); | |
4019 | ||
4020 | wpas_notify_supplicant_deinitialized(global); | |
4021 | ||
4022 | eap_peer_unregister_methods(); | |
4023 | #ifdef CONFIG_AP | |
4024 | eap_server_unregister_methods(); | |
4025 | #endif /* CONFIG_AP */ | |
4026 | ||
4027 | for (i = 0; wpa_drivers[i] && global->drv_priv; i++) { | |
4028 | if (!global->drv_priv[i]) | |
4029 | continue; | |
4030 | wpa_drivers[i]->global_deinit(global->drv_priv[i]); | |
4031 | } | |
4032 | os_free(global->drv_priv); | |
4033 | ||
4034 | random_deinit(); | |
4035 | ||
4036 | eloop_destroy(); | |
4037 | ||
4038 | if (global->params.pid_file) { | |
4039 | os_daemonize_terminate(global->params.pid_file); | |
4040 | os_free(global->params.pid_file); | |
4041 | } | |
4042 | os_free(global->params.ctrl_interface); | |
4043 | os_free(global->params.ctrl_interface_group); | |
4044 | os_free(global->params.override_driver); | |
4045 | os_free(global->params.override_ctrl_interface); | |
4046 | ||
4047 | os_free(global->p2p_disallow_freq.range); | |
4048 | os_free(global->p2p_go_avoid_freq.range); | |
4049 | os_free(global->add_psk); | |
4050 | ||
4051 | os_free(global); | |
4052 | wpa_debug_close_syslog(); | |
4053 | wpa_debug_close_file(); | |
4054 | wpa_debug_close_linux_tracing(); | |
4055 | } | |
4056 | ||
4057 | ||
4058 | void wpa_supplicant_update_config(struct wpa_supplicant *wpa_s) | |
4059 | { | |
4060 | if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) && | |
4061 | wpa_s->conf->country[0] && wpa_s->conf->country[1]) { | |
4062 | char country[3]; | |
4063 | country[0] = wpa_s->conf->country[0]; | |
4064 | country[1] = wpa_s->conf->country[1]; | |
4065 | country[2] = '\0'; | |
4066 | if (wpa_drv_set_country(wpa_s, country) < 0) { | |
4067 | wpa_printf(MSG_ERROR, "Failed to set country code " | |
4068 | "'%s'", country); | |
4069 | } | |
4070 | } | |
4071 | ||
4072 | if (wpa_s->conf->changed_parameters & CFG_CHANGED_EXT_PW_BACKEND) | |
4073 | wpas_init_ext_pw(wpa_s); | |
4074 | ||
4075 | #ifdef CONFIG_WPS | |
4076 | wpas_wps_update_config(wpa_s); | |
4077 | #endif /* CONFIG_WPS */ | |
4078 | ||
4079 | #ifdef CONFIG_P2P | |
4080 | wpas_p2p_update_config(wpa_s); | |
4081 | #endif /* CONFIG_P2P */ | |
4082 | ||
4083 | wpa_s->conf->changed_parameters = 0; | |
4084 | } | |
4085 | ||
4086 | ||
4087 | static void add_freq(int *freqs, int *num_freqs, int freq) | |
4088 | { | |
4089 | int i; | |
4090 | ||
4091 | for (i = 0; i < *num_freqs; i++) { | |
4092 | if (freqs[i] == freq) | |
4093 | return; | |
4094 | } | |
4095 | ||
4096 | freqs[*num_freqs] = freq; | |
4097 | (*num_freqs)++; | |
4098 | } | |
4099 | ||
4100 | ||
4101 | static int * get_bss_freqs_in_ess(struct wpa_supplicant *wpa_s) | |
4102 | { | |
4103 | struct wpa_bss *bss, *cbss; | |
4104 | const int max_freqs = 10; | |
4105 | int *freqs; | |
4106 | int num_freqs = 0; | |
4107 | ||
4108 | freqs = os_zalloc(sizeof(int) * (max_freqs + 1)); | |
4109 | if (freqs == NULL) | |
4110 | return NULL; | |
4111 | ||
4112 | cbss = wpa_s->current_bss; | |
4113 | ||
4114 | dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { | |
4115 | if (bss == cbss) | |
4116 | continue; | |
4117 | if (bss->ssid_len == cbss->ssid_len && | |
4118 | os_memcmp(bss->ssid, cbss->ssid, bss->ssid_len) == 0 && | |
4119 | wpa_blacklist_get(wpa_s, bss->bssid) == NULL) { | |
4120 | add_freq(freqs, &num_freqs, bss->freq); | |
4121 | if (num_freqs == max_freqs) | |
4122 | break; | |
4123 | } | |
4124 | } | |
4125 | ||
4126 | if (num_freqs == 0) { | |
4127 | os_free(freqs); | |
4128 | freqs = NULL; | |
4129 | } | |
4130 | ||
4131 | return freqs; | |
4132 | } | |
4133 | ||
4134 | ||
4135 | void wpas_connection_failed(struct wpa_supplicant *wpa_s, const u8 *bssid) | |
4136 | { | |
4137 | int timeout; | |
4138 | int count; | |
4139 | int *freqs = NULL; | |
4140 | ||
4141 | wpas_connect_work_done(wpa_s); | |
4142 | ||
4143 | /* | |
4144 | * Remove possible authentication timeout since the connection failed. | |
4145 | */ | |
4146 | eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL); | |
4147 | ||
4148 | if (wpa_s->disconnected) { | |
4149 | /* | |
4150 | * There is no point in blacklisting the AP if this event is | |
4151 | * generated based on local request to disconnect. | |
4152 | */ | |
4153 | wpa_dbg(wpa_s, MSG_DEBUG, "Ignore connection failure " | |
4154 | "indication since interface has been put into " | |
4155 | "disconnected state"); | |
4156 | return; | |
4157 | } | |
4158 | ||
4159 | /* | |
4160 | * Add the failed BSSID into the blacklist and speed up next scan | |
4161 | * attempt if there could be other APs that could accept association. | |
4162 | * The current blacklist count indicates how many times we have tried | |
4163 | * connecting to this AP and multiple attempts mean that other APs are | |
4164 | * either not available or has already been tried, so that we can start | |
4165 | * increasing the delay here to avoid constant scanning. | |
4166 | */ | |
4167 | count = wpa_blacklist_add(wpa_s, bssid); | |
4168 | if (count == 1 && wpa_s->current_bss) { | |
4169 | /* | |
4170 | * This BSS was not in the blacklist before. If there is | |
4171 | * another BSS available for the same ESS, we should try that | |
4172 | * next. Otherwise, we may as well try this one once more | |
4173 | * before allowing other, likely worse, ESSes to be considered. | |
4174 | */ | |
4175 | freqs = get_bss_freqs_in_ess(wpa_s); | |
4176 | if (freqs) { | |
4177 | wpa_dbg(wpa_s, MSG_DEBUG, "Another BSS in this ESS " | |
4178 | "has been seen; try it next"); | |
4179 | wpa_blacklist_add(wpa_s, bssid); | |
4180 | /* | |
4181 | * On the next scan, go through only the known channels | |
4182 | * used in this ESS based on previous scans to speed up | |
4183 | * common load balancing use case. | |
4184 | */ | |
4185 | os_free(wpa_s->next_scan_freqs); | |
4186 | wpa_s->next_scan_freqs = freqs; | |
4187 | } | |
4188 | } | |
4189 | ||
4190 | /* | |
4191 | * Add previous failure count in case the temporary blacklist was | |
4192 | * cleared due to no other BSSes being available. | |
4193 | */ | |
4194 | count += wpa_s->extra_blacklist_count; | |
4195 | ||
4196 | if (count > 3 && wpa_s->current_ssid) { | |
4197 | wpa_printf(MSG_DEBUG, "Continuous association failures - " | |
4198 | "consider temporary network disabling"); | |
4199 | wpas_auth_failed(wpa_s); | |
4200 | } | |
4201 | ||
4202 | switch (count) { | |
4203 | case 1: | |
4204 | timeout = 100; | |
4205 | break; | |
4206 | case 2: | |
4207 | timeout = 500; | |
4208 | break; | |
4209 | case 3: | |
4210 | timeout = 1000; | |
4211 | break; | |
4212 | case 4: | |
4213 | timeout = 5000; | |
4214 | break; | |
4215 | default: | |
4216 | timeout = 10000; | |
4217 | break; | |
4218 | } | |
4219 | ||
4220 | wpa_dbg(wpa_s, MSG_DEBUG, "Blacklist count %d --> request scan in %d " | |
4221 | "ms", count, timeout); | |
4222 | ||
4223 | /* | |
4224 | * TODO: if more than one possible AP is available in scan results, | |
4225 | * could try the other ones before requesting a new scan. | |
4226 | */ | |
4227 | wpa_supplicant_req_scan(wpa_s, timeout / 1000, | |
4228 | 1000 * (timeout % 1000)); | |
4229 | } | |
4230 | ||
4231 | ||
4232 | int wpas_driver_bss_selection(struct wpa_supplicant *wpa_s) | |
4233 | { | |
4234 | return wpa_s->conf->ap_scan == 2 || | |
4235 | (wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION); | |
4236 | } | |
4237 | ||
4238 | ||
4239 | #if defined(CONFIG_CTRL_IFACE) || defined(CONFIG_CTRL_IFACE_DBUS_NEW) | |
4240 | int wpa_supplicant_ctrl_iface_ctrl_rsp_handle(struct wpa_supplicant *wpa_s, | |
4241 | struct wpa_ssid *ssid, | |
4242 | const char *field, | |
4243 | const char *value) | |
4244 | { | |
4245 | #ifdef IEEE8021X_EAPOL | |
4246 | struct eap_peer_config *eap = &ssid->eap; | |
4247 | ||
4248 | wpa_printf(MSG_DEBUG, "CTRL_IFACE: response handle field=%s", field); | |
4249 | wpa_hexdump_ascii_key(MSG_DEBUG, "CTRL_IFACE: response value", | |
4250 | (const u8 *) value, os_strlen(value)); | |
4251 | ||
4252 | switch (wpa_supplicant_ctrl_req_from_string(field)) { | |
4253 | case WPA_CTRL_REQ_EAP_IDENTITY: | |
4254 | os_free(eap->identity); | |
4255 | eap->identity = (u8 *) os_strdup(value); | |
4256 | eap->identity_len = os_strlen(value); | |
4257 | eap->pending_req_identity = 0; | |
4258 | if (ssid == wpa_s->current_ssid) | |
4259 | wpa_s->reassociate = 1; | |
4260 | break; | |
4261 | case WPA_CTRL_REQ_EAP_PASSWORD: | |
4262 | os_free(eap->password); | |
4263 | eap->password = (u8 *) os_strdup(value); | |
4264 | eap->password_len = os_strlen(value); | |
4265 | eap->pending_req_password = 0; | |
4266 | if (ssid == wpa_s->current_ssid) | |
4267 | wpa_s->reassociate = 1; | |
4268 | break; | |
4269 | case WPA_CTRL_REQ_EAP_NEW_PASSWORD: | |
4270 | os_free(eap->new_password); | |
4271 | eap->new_password = (u8 *) os_strdup(value); | |
4272 | eap->new_password_len = os_strlen(value); | |
4273 | eap->pending_req_new_password = 0; | |
4274 | if (ssid == wpa_s->current_ssid) | |
4275 | wpa_s->reassociate = 1; | |
4276 | break; | |
4277 | case WPA_CTRL_REQ_EAP_PIN: | |
4278 | os_free(eap->pin); | |
4279 | eap->pin = os_strdup(value); | |
4280 | eap->pending_req_pin = 0; | |
4281 | if (ssid == wpa_s->current_ssid) | |
4282 | wpa_s->reassociate = 1; | |
4283 | break; | |
4284 | case WPA_CTRL_REQ_EAP_OTP: | |
4285 | os_free(eap->otp); | |
4286 | eap->otp = (u8 *) os_strdup(value); | |
4287 | eap->otp_len = os_strlen(value); | |
4288 | os_free(eap->pending_req_otp); | |
4289 | eap->pending_req_otp = NULL; | |
4290 | eap->pending_req_otp_len = 0; | |
4291 | break; | |
4292 | case WPA_CTRL_REQ_EAP_PASSPHRASE: | |
4293 | os_free(eap->private_key_passwd); | |
4294 | eap->private_key_passwd = (u8 *) os_strdup(value); | |
4295 | eap->pending_req_passphrase = 0; | |
4296 | if (ssid == wpa_s->current_ssid) | |
4297 | wpa_s->reassociate = 1; | |
4298 | break; | |
4299 | case WPA_CTRL_REQ_SIM: | |
4300 | os_free(eap->external_sim_resp); | |
4301 | eap->external_sim_resp = os_strdup(value); | |
4302 | break; | |
4303 | default: | |
4304 | wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown field '%s'", field); | |
4305 | return -1; | |
4306 | } | |
4307 | ||
4308 | return 0; | |
4309 | #else /* IEEE8021X_EAPOL */ | |
4310 | wpa_printf(MSG_DEBUG, "CTRL_IFACE: IEEE 802.1X not included"); | |
4311 | return -1; | |
4312 | #endif /* IEEE8021X_EAPOL */ | |
4313 | } | |
4314 | #endif /* CONFIG_CTRL_IFACE || CONFIG_CTRL_IFACE_DBUS_NEW */ | |
4315 | ||
4316 | ||
4317 | int wpas_network_disabled(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid) | |
4318 | { | |
4319 | int i; | |
4320 | unsigned int drv_enc; | |
4321 | ||
4322 | if (ssid == NULL) | |
4323 | return 1; | |
4324 | ||
4325 | if (ssid->disabled) | |
4326 | return 1; | |
4327 | ||
4328 | if (wpa_s && wpa_s->drv_capa_known) | |
4329 | drv_enc = wpa_s->drv_enc; | |
4330 | else | |
4331 | drv_enc = (unsigned int) -1; | |
4332 | ||
4333 | for (i = 0; i < NUM_WEP_KEYS; i++) { | |
4334 | size_t len = ssid->wep_key_len[i]; | |
4335 | if (len == 0) | |
4336 | continue; | |
4337 | if (len == 5 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP40)) | |
4338 | continue; | |
4339 | if (len == 13 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP104)) | |
4340 | continue; | |
4341 | if (len == 16 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP128)) | |
4342 | continue; | |
4343 | return 1; /* invalid WEP key */ | |
4344 | } | |
4345 | ||
4346 | if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set && | |
4347 | !ssid->ext_psk) | |
4348 | return 1; | |
4349 | ||
4350 | return 0; | |
4351 | } | |
4352 | ||
4353 | ||
4354 | int wpas_is_p2p_prioritized(struct wpa_supplicant *wpa_s) | |
4355 | { | |
4356 | if (wpa_s->global->conc_pref == WPA_CONC_PREF_P2P) | |
4357 | return 1; | |
4358 | if (wpa_s->global->conc_pref == WPA_CONC_PREF_STA) | |
4359 | return 0; | |
4360 | return -1; | |
4361 | } | |
4362 | ||
4363 | ||
4364 | void wpas_auth_failed(struct wpa_supplicant *wpa_s) | |
4365 | { | |
4366 | struct wpa_ssid *ssid = wpa_s->current_ssid; | |
4367 | int dur; | |
4368 | struct os_reltime now; | |
4369 | ||
4370 | if (ssid == NULL) { | |
4371 | wpa_printf(MSG_DEBUG, "Authentication failure but no known " | |
4372 | "SSID block"); | |
4373 | return; | |
4374 | } | |
4375 | ||
4376 | if (ssid->key_mgmt == WPA_KEY_MGMT_WPS) | |
4377 | return; | |
4378 | ||
4379 | ssid->auth_failures++; | |
4380 | ||
4381 | #ifdef CONFIG_P2P | |
4382 | if (ssid->p2p_group && | |
4383 | (wpa_s->p2p_in_provisioning || wpa_s->show_group_started)) { | |
4384 | /* | |
4385 | * Skip the wait time since there is a short timeout on the | |
4386 | * connection to a P2P group. | |
4387 | */ | |
4388 | return; | |
4389 | } | |
4390 | #endif /* CONFIG_P2P */ | |
4391 | ||
4392 | if (ssid->auth_failures > 50) | |
4393 | dur = 300; | |
4394 | else if (ssid->auth_failures > 10) | |
4395 | dur = 120; | |
4396 | else if (ssid->auth_failures > 5) | |
4397 | dur = 90; | |
4398 | else if (ssid->auth_failures > 3) | |
4399 | dur = 60; | |
4400 | else if (ssid->auth_failures > 2) | |
4401 | dur = 30; | |
4402 | else if (ssid->auth_failures > 1) | |
4403 | dur = 20; | |
4404 | else | |
4405 | dur = 10; | |
4406 | ||
4407 | if (ssid->auth_failures > 1 && | |
4408 | wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt)) | |
4409 | dur += os_random() % (ssid->auth_failures * 10); | |
4410 | ||
4411 | os_get_reltime(&now); | |
4412 | if (now.sec + dur <= ssid->disabled_until.sec) | |
4413 | return; | |
4414 | ||
4415 | ssid->disabled_until.sec = now.sec + dur; | |
4416 | ||
4417 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TEMP_DISABLED | |
4418 | "id=%d ssid=\"%s\" auth_failures=%u duration=%d", | |
4419 | ssid->id, wpa_ssid_txt(ssid->ssid, ssid->ssid_len), | |
4420 | ssid->auth_failures, dur); | |
4421 | } | |
4422 | ||
4423 | ||
4424 | void wpas_clear_temp_disabled(struct wpa_supplicant *wpa_s, | |
4425 | struct wpa_ssid *ssid, int clear_failures) | |
4426 | { | |
4427 | if (ssid == NULL) | |
4428 | return; | |
4429 | ||
4430 | if (ssid->disabled_until.sec) { | |
4431 | wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REENABLED | |
4432 | "id=%d ssid=\"%s\"", | |
4433 | ssid->id, wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); | |
4434 | } | |
4435 | ssid->disabled_until.sec = 0; | |
4436 | ssid->disabled_until.usec = 0; | |
4437 | if (clear_failures) | |
4438 | ssid->auth_failures = 0; | |
4439 | } | |
4440 | ||
4441 | ||
4442 | int disallowed_bssid(struct wpa_supplicant *wpa_s, const u8 *bssid) | |
4443 | { | |
4444 | size_t i; | |
4445 | ||
4446 | if (wpa_s->disallow_aps_bssid == NULL) | |
4447 | return 0; | |
4448 | ||
4449 | for (i = 0; i < wpa_s->disallow_aps_bssid_count; i++) { | |
4450 | if (os_memcmp(wpa_s->disallow_aps_bssid + i * ETH_ALEN, | |
4451 | bssid, ETH_ALEN) == 0) | |
4452 | return 1; | |
4453 | } | |
4454 | ||
4455 | return 0; | |
4456 | } | |
4457 | ||
4458 | ||
4459 | int disallowed_ssid(struct wpa_supplicant *wpa_s, const u8 *ssid, | |
4460 | size_t ssid_len) | |
4461 | { | |
4462 | size_t i; | |
4463 | ||
4464 | if (wpa_s->disallow_aps_ssid == NULL || ssid == NULL) | |
4465 | return 0; | |
4466 | ||
4467 | for (i = 0; i < wpa_s->disallow_aps_ssid_count; i++) { | |
4468 | struct wpa_ssid_value *s = &wpa_s->disallow_aps_ssid[i]; | |
4469 | if (ssid_len == s->ssid_len && | |
4470 | os_memcmp(ssid, s->ssid, ssid_len) == 0) | |
4471 | return 1; | |
4472 | } | |
4473 | ||
4474 | return 0; | |
4475 | } | |
4476 | ||
4477 | ||
4478 | /** | |
4479 | * wpas_request_connection - Request a new connection | |
4480 | * @wpa_s: Pointer to the network interface | |
4481 | * | |
4482 | * This function is used to request a new connection to be found. It will mark | |
4483 | * the interface to allow reassociation and request a new scan to find a | |
4484 | * suitable network to connect to. | |
4485 | */ | |
4486 | void wpas_request_connection(struct wpa_supplicant *wpa_s) | |
4487 | { | |
4488 | wpa_s->normal_scans = 0; | |
4489 | wpa_supplicant_reinit_autoscan(wpa_s); | |
4490 | wpa_s->extra_blacklist_count = 0; | |
4491 | wpa_s->disconnected = 0; | |
4492 | wpa_s->reassociate = 1; | |
4493 | ||
4494 | if (wpa_supplicant_fast_associate(wpa_s) != 1) | |
4495 | wpa_supplicant_req_scan(wpa_s, 0, 0); | |
4496 | } | |
4497 | ||
4498 | ||
4499 | void dump_freq_array(struct wpa_supplicant *wpa_s, const char *title, | |
4500 | int *freq_array, unsigned int len) | |
4501 | { | |
4502 | unsigned int i; | |
4503 | ||
4504 | wpa_dbg(wpa_s, MSG_DEBUG, "Shared frequencies (len=%u): %s", | |
4505 | len, title); | |
4506 | for (i = 0; i < len; i++) | |
4507 | wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d", i, freq_array[i]); | |
4508 | } | |
4509 | ||
4510 | ||
4511 | /* | |
4512 | * Find the operating frequencies of any of the virtual interfaces that | |
4513 | * are using the same radio as the current interface. | |
4514 | */ | |
4515 | int get_shared_radio_freqs(struct wpa_supplicant *wpa_s, | |
4516 | int *freq_array, unsigned int len) | |
4517 | { | |
4518 | struct wpa_supplicant *ifs; | |
4519 | u8 bssid[ETH_ALEN]; | |
4520 | int freq; | |
4521 | unsigned int idx = 0, i; | |
4522 | ||
4523 | wpa_dbg(wpa_s, MSG_DEBUG, | |
4524 | "Determining shared radio frequencies (max len %u)", len); | |
4525 | os_memset(freq_array, 0, sizeof(int) * len); | |
4526 | ||
4527 | /* First add the frequency of the local interface */ | |
4528 | if (wpa_s->current_ssid != NULL && wpa_s->assoc_freq != 0) { | |
4529 | if (wpa_s->current_ssid->mode == WPAS_MODE_AP || | |
4530 | wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO) | |
4531 | freq_array[idx++] = wpa_s->current_ssid->frequency; | |
4532 | else if (wpa_drv_get_bssid(wpa_s, bssid) == 0) | |
4533 | freq_array[idx++] = wpa_s->assoc_freq; | |
4534 | } | |
4535 | ||
4536 | /* If get_radio_name is not supported, use only the local freq */ | |
4537 | if (!wpa_s->driver->get_radio_name) { | |
4538 | freq = wpa_drv_shared_freq(wpa_s); | |
4539 | if (freq > 0 && idx < len && | |
4540 | (idx == 0 || freq_array[0] != freq)) | |
4541 | freq_array[idx++] = freq; | |
4542 | dump_freq_array(wpa_s, "No get_radio_name", freq_array, idx); | |
4543 | return idx; | |
4544 | } | |
4545 | ||
4546 | dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant, | |
4547 | radio_list) { | |
4548 | if (wpa_s == ifs) | |
4549 | continue; | |
4550 | ||
4551 | if (ifs->current_ssid == NULL || ifs->assoc_freq == 0) | |
4552 | continue; | |
4553 | ||
4554 | if (ifs->current_ssid->mode == WPAS_MODE_AP || | |
4555 | ifs->current_ssid->mode == WPAS_MODE_P2P_GO) | |
4556 | freq = ifs->current_ssid->frequency; | |
4557 | else if (wpa_drv_get_bssid(ifs, bssid) == 0) | |
4558 | freq = ifs->assoc_freq; | |
4559 | else | |
4560 | continue; | |
4561 | ||
4562 | /* Hold only distinct freqs */ | |
4563 | for (i = 0; i < idx; i++) | |
4564 | if (freq_array[i] == freq) | |
4565 | break; | |
4566 | ||
4567 | if (i == idx) | |
4568 | freq_array[idx++] = freq; | |
4569 | } | |
4570 | ||
4571 | dump_freq_array(wpa_s, "completed iteration", freq_array, idx); | |
4572 | return idx; | |
4573 | } |